2006-09-13 06:26:04 -04:00
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/*
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* USB FTDI client driver for Elan Digital Systems's Uxxx adapters
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*
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* Copyright(C) 2006 Elan Digital Systems Limited
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* http://www.elandigitalsystems.com
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*
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* Author and Maintainer - Tony Olech - Elan Digital Systems
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* tony.olech@elandigitalsystems.com
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*
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* This program is free software;you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*
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* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
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* based on various USB client drivers in the 2.6.15 linux kernel
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* with constant reference to the 3rd Edition of Linux Device Drivers
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* published by O'Reilly
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*
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* The U132 adapter is a USB to CardBus adapter specifically designed
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* for PC cards that contain an OHCI host controller. Typical PC cards
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* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
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*
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* The U132 adapter will *NOT *work with PC cards that do not contain
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* an OHCI controller. A simple way to test whether a PC card has an
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* OHCI controller as an interface is to insert the PC card directly
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* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
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* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
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* then there is a good chance that the U132 adapter will support the
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* PC card.(you also need the specific client driver for the PC card)
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*
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* Please inform the Author and Maintainer about any PC cards that
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* contain OHCI Host Controller and work when directly connected to
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* an embedded CardBus slot but do not work when they are connected
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* via an ELAN U132 adapter.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/ioctl.h>
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USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
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#include <linux/pci_ids.h>
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2006-09-13 06:26:04 -04:00
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kref.h>
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#include <asm/uaccess.h>
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#include <linux/usb.h>
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#include <linux/workqueue.h>
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#include <linux/platform_device.h>
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MODULE_AUTHOR("Tony Olech");
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MODULE_DESCRIPTION("FTDI ELAN driver");
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MODULE_LICENSE("GPL");
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#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
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static int distrust_firmware = 1;
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module_param(distrust_firmware, bool, 0);
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MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
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"t setup");
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2006-09-13 06:26:04 -04:00
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extern struct platform_driver u132_platform_driver;
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static struct workqueue_struct *status_queue;
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static struct workqueue_struct *command_queue;
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static struct workqueue_struct *respond_queue;
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/*
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* ftdi_module_lock exists to protect access to global variables
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*
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*/
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static struct semaphore ftdi_module_lock;
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static int ftdi_instances = 0;
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static struct list_head ftdi_static_list;
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/*
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* end of the global variables protected by ftdi_module_lock
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*/
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#include "usb_u132.h"
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
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#include <asm/io.h>
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#include "../core/hcd.h"
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2007-04-29 13:21:14 -04:00
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/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
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* If you're going to try stuff like this, you need to split
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* out shareable stuff (register declarations?) into its own
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* file, maybe name <linux/usb/ohci.h>
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*/
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|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
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#include "../host/ohci.h"
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2006-09-13 06:26:04 -04:00
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/* Define these values to match your devices*/
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#define USB_FTDI_ELAN_VENDOR_ID 0x0403
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#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea
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/* table of devices that work with this driver*/
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static struct usb_device_id ftdi_elan_table[] = {
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{USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)},
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{ /* Terminating entry */ }
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};
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MODULE_DEVICE_TABLE(usb, ftdi_elan_table);
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/* only the jtag(firmware upgrade device) interface requires
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* a device file and corresponding minor number, but the
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* interface is created unconditionally - I suppose it could
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* be configured or not according to a module parameter.
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* But since we(now) require one interface per device,
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* and since it unlikely that a normal installation would
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* require more than a couple of elan-ftdi devices, 8 seems
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* like a reasonable limit to have here, and if someone
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* really requires more than 8 devices, then they can frig the
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* code and recompile
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*/
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#define USB_FTDI_ELAN_MINOR_BASE 192
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#define COMMAND_BITS 5
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#define COMMAND_SIZE (1<<COMMAND_BITS)
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#define COMMAND_MASK (COMMAND_SIZE-1)
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struct u132_command {
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u8 header;
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u16 length;
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u8 address;
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u8 width;
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u32 value;
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int follows;
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void *buffer;
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};
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#define RESPOND_BITS 5
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#define RESPOND_SIZE (1<<RESPOND_BITS)
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#define RESPOND_MASK (RESPOND_SIZE-1)
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struct u132_respond {
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u8 header;
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u8 address;
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u32 *value;
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int *result;
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struct completion wait_completion;
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};
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struct u132_target {
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void *endp;
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struct urb *urb;
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int toggle_bits;
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int error_count;
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int condition_code;
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int repeat_number;
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int halted;
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int skipped;
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int actual;
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int non_null;
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int active;
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int abandoning;
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void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
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int toggle_bits, int error_count, int condition_code,
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int repeat_number, int halted, int skipped, int actual,
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int non_null);
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};
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/* Structure to hold all of our device specific stuff*/
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struct usb_ftdi {
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struct list_head ftdi_list;
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struct semaphore u132_lock;
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int command_next;
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int command_head;
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struct u132_command command[COMMAND_SIZE];
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int respond_next;
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int respond_head;
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struct u132_respond respond[RESPOND_SIZE];
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struct u132_target target[4];
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char device_name[16];
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unsigned synchronized:1;
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unsigned enumerated:1;
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unsigned registered:1;
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unsigned initialized:1;
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unsigned card_ejected:1;
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int function;
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int sequence_num;
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int disconnected;
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int gone_away;
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|
int stuck_status;
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int status_queue_delay;
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struct semaphore sw_lock;
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struct usb_device *udev;
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struct usb_interface *interface;
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|
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struct usb_class_driver *class;
|
2006-11-22 09:57:56 -05:00
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|
|
struct delayed_work status_work;
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|
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struct delayed_work command_work;
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|
|
struct delayed_work respond_work;
|
2006-09-13 06:26:04 -04:00
|
|
|
struct u132_platform_data platform_data;
|
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|
|
struct resource resources[0];
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|
|
struct platform_device platform_dev;
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|
unsigned char *bulk_in_buffer;
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|
size_t bulk_in_size;
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|
size_t bulk_in_last;
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|
size_t bulk_in_left;
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|
__u8 bulk_in_endpointAddr;
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|
__u8 bulk_out_endpointAddr;
|
|
|
|
|
struct kref kref;
|
|
|
|
|
u32 controlreg;
|
|
|
|
|
u8 response[4 + 1024];
|
|
|
|
|
int expected;
|
|
|
|
|
int recieved;
|
|
|
|
|
int ed_found;
|
|
|
|
|
};
|
|
|
|
|
#define kref_to_usb_ftdi(d) container_of(d, struct usb_ftdi, kref)
|
|
|
|
|
#define platform_device_to_usb_ftdi(d) container_of(d, struct usb_ftdi, \
|
|
|
|
|
platform_dev)
|
|
|
|
|
static struct usb_driver ftdi_elan_driver;
|
|
|
|
|
static void ftdi_elan_delete(struct kref *kref)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = kref_to_usb_ftdi(kref);
|
|
|
|
|
dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi);
|
|
|
|
|
usb_put_dev(ftdi->udev);
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
down(&ftdi_module_lock);
|
|
|
|
|
list_del_init(&ftdi->ftdi_list);
|
|
|
|
|
ftdi_instances -= 1;
|
|
|
|
|
up(&ftdi_module_lock);
|
|
|
|
|
kfree(ftdi->bulk_in_buffer);
|
|
|
|
|
ftdi->bulk_in_buffer = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_put_kref(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_get_kref(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
kref_get(&ftdi->kref);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_init_kref(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
kref_init(&ftdi->kref);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_status_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (!queue_delayed_work(status_queue, &ftdi->status_work, delta))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_status_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (queue_delayed_work(status_queue, &ftdi->status_work, delta))
|
|
|
|
|
kref_get(&ftdi->kref);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_status_cancel_work(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
if (cancel_delayed_work(&ftdi->status_work))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_command_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (!queue_delayed_work(command_queue, &ftdi->command_work, delta))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_command_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (queue_delayed_work(command_queue, &ftdi->command_work, delta))
|
|
|
|
|
kref_get(&ftdi->kref);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_command_cancel_work(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
if (cancel_delayed_work(&ftdi->command_work))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_response_requeue_work(struct usb_ftdi *ftdi,
|
|
|
|
|
unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (!queue_delayed_work(respond_queue, &ftdi->respond_work, delta))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_respond_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
|
|
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
if (queue_delayed_work(respond_queue, &ftdi->respond_work, delta))
|
|
|
|
|
kref_get(&ftdi->kref);
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_response_cancel_work(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
if (cancel_delayed_work(&ftdi->respond_work))
|
|
|
|
|
kref_put(&ftdi->kref, ftdi_elan_delete);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void ftdi_elan_gone_away(struct platform_device *pdev)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
ftdi->gone_away += 1;
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(ftdi_elan_gone_away);
|
2006-11-19 21:24:44 -05:00
|
|
|
static void ftdi_release_platform_dev(struct device *dev)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
|
|
|
|
dev->parent = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
|
|
|
|
|
struct u132_target *target, u8 *buffer, int length);
|
|
|
|
|
static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi);
|
|
|
|
|
static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_synchronize(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_command_engine(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi);
|
|
|
|
|
static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int result;
|
|
|
|
|
if (ftdi->platform_dev.dev.parent)
|
|
|
|
|
return -EBUSY;
|
|
|
|
|
ftdi_elan_get_kref(ftdi);
|
|
|
|
|
ftdi->platform_data.potpg = 100;
|
|
|
|
|
ftdi->platform_data.reset = NULL;
|
|
|
|
|
ftdi->platform_dev.id = ftdi->sequence_num;
|
|
|
|
|
ftdi->platform_dev.resource = ftdi->resources;
|
|
|
|
|
ftdi->platform_dev.num_resources = ARRAY_SIZE(ftdi->resources);
|
|
|
|
|
ftdi->platform_dev.dev.platform_data = &ftdi->platform_data;
|
|
|
|
|
ftdi->platform_dev.dev.parent = NULL;
|
|
|
|
|
ftdi->platform_dev.dev.release = ftdi_release_platform_dev;
|
|
|
|
|
ftdi->platform_dev.dev.dma_mask = NULL;
|
|
|
|
|
snprintf(ftdi->device_name, sizeof(ftdi->device_name), "u132_hcd");
|
|
|
|
|
ftdi->platform_dev.name = ftdi->device_name;
|
|
|
|
|
dev_info(&ftdi->udev->dev, "requesting module '%s'\n", "u132_hcd");
|
|
|
|
|
request_module("u132_hcd");
|
|
|
|
|
dev_info(&ftdi->udev->dev, "registering '%s'\n",
|
|
|
|
|
ftdi->platform_dev.name);
|
|
|
|
|
result = platform_device_register(&ftdi->platform_dev);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
while (ftdi->respond_next > ftdi->respond_head) {
|
|
|
|
|
struct u132_respond *respond = &ftdi->respond[RESPOND_MASK &
|
|
|
|
|
ftdi->respond_head++];
|
|
|
|
|
*respond->result = -ESHUTDOWN;
|
|
|
|
|
*respond->value = 0;
|
|
|
|
|
complete(&respond->wait_completion);
|
|
|
|
|
} up(&ftdi->u132_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int ed_number = 4;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
while (ed_number-- > 0) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed_number];
|
|
|
|
|
if (target->active == 1) {
|
|
|
|
|
target->condition_code = TD_DEVNOTRESP;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, NULL, 0);
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int ed_number = 4;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
while (ed_number-- > 0) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed_number];
|
|
|
|
|
target->abandoning = 1;
|
|
|
|
|
wait_1:if (target->active == 1) {
|
|
|
|
|
int command_size = ftdi->command_next -
|
|
|
|
|
ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x80 | (ed_number << 5) | 0x4;
|
|
|
|
|
command->length = 0x00;
|
|
|
|
|
command->address = 0x00;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
goto wait_1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
wait_2:if (target->active == 1) {
|
|
|
|
|
int command_size = ftdi->command_next -
|
|
|
|
|
ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x90 | (ed_number << 5);
|
|
|
|
|
command->length = 0x00;
|
|
|
|
|
command->address = 0x00;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
goto wait_2;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int ed_number = 4;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
while (ed_number-- > 0) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed_number];
|
|
|
|
|
target->abandoning = 1;
|
|
|
|
|
wait:if (target->active == 1) {
|
|
|
|
|
int command_size = ftdi->command_next -
|
|
|
|
|
ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x80 | (ed_number << 5) | 0x4;
|
|
|
|
|
command->length = 0x00;
|
|
|
|
|
command->address = 0x00;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
ftdi_command_queue_work(ftdi, 0);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2006-11-22 09:57:56 -05:00
|
|
|
static void ftdi_elan_command_work(struct work_struct *work)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
struct usb_ftdi *ftdi =
|
|
|
|
|
container_of(work, struct usb_ftdi, command_work.work);
|
|
|
|
|
|
2006-09-13 06:26:04 -04:00
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
return;
|
|
|
|
|
} else {
|
|
|
|
|
int retval = ftdi_elan_command_engine(ftdi);
|
|
|
|
|
if (retval == -ESHUTDOWN) {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
} else if (retval == -ENODEV) {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
} else if (retval)
|
|
|
|
|
dev_err(&ftdi->udev->dev, "command error %d\n", retval);
|
|
|
|
|
ftdi_command_requeue_work(ftdi, msecs_to_jiffies(10));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
ftdi_respond_queue_work(ftdi, 0);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2006-11-22 09:57:56 -05:00
|
|
|
static void ftdi_elan_respond_work(struct work_struct *work)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
struct usb_ftdi *ftdi =
|
|
|
|
|
container_of(work, struct usb_ftdi, respond_work.work);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
return;
|
|
|
|
|
} else {
|
|
|
|
|
int retval = ftdi_elan_respond_engine(ftdi);
|
|
|
|
|
if (retval == 0) {
|
|
|
|
|
} else if (retval == -ESHUTDOWN) {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
} else if (retval == -ENODEV) {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
} else if (retval == -EILSEQ) {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
dev_err(&ftdi->udev->dev, "respond error %d\n", retval);
|
|
|
|
|
}
|
|
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
ftdi_elan_abandon_completions(ftdi);
|
|
|
|
|
ftdi_elan_abandon_targets(ftdi);
|
|
|
|
|
}
|
|
|
|
|
ftdi_response_requeue_work(ftdi, msecs_to_jiffies(10));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* the sw_lock is initially held and will be freed
|
|
|
|
|
* after the FTDI has been synchronized
|
|
|
|
|
*
|
|
|
|
|
*/
|
2006-11-22 09:57:56 -05:00
|
|
|
static void ftdi_elan_status_work(struct work_struct *work)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
2006-11-22 09:57:56 -05:00
|
|
|
struct usb_ftdi *ftdi =
|
|
|
|
|
container_of(work, struct usb_ftdi, status_work.work);
|
2006-09-13 06:26:04 -04:00
|
|
|
int work_delay_in_msec = 0;
|
|
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
return;
|
|
|
|
|
} else if (ftdi->synchronized == 0) {
|
|
|
|
|
down(&ftdi->sw_lock);
|
|
|
|
|
if (ftdi_elan_synchronize(ftdi) == 0) {
|
|
|
|
|
ftdi->synchronized = 1;
|
|
|
|
|
ftdi_command_queue_work(ftdi, 1);
|
|
|
|
|
ftdi_respond_queue_work(ftdi, 1);
|
|
|
|
|
up(&ftdi->sw_lock);
|
|
|
|
|
work_delay_in_msec = 100;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "synchronize failed\n");
|
|
|
|
|
up(&ftdi->sw_lock);
|
|
|
|
|
work_delay_in_msec = 10 *1000;
|
|
|
|
|
}
|
|
|
|
|
} else if (ftdi->stuck_status > 0) {
|
|
|
|
|
if (ftdi_elan_stuck_waiting(ftdi) == 0) {
|
|
|
|
|
ftdi->stuck_status = 0;
|
|
|
|
|
ftdi->synchronized = 0;
|
|
|
|
|
} else if ((ftdi->stuck_status++ % 60) == 1) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "WRONG type of card inserted "
|
|
|
|
|
"- please remove\n");
|
|
|
|
|
} else
|
|
|
|
|
dev_err(&ftdi->udev->dev, "WRONG type of card inserted "
|
|
|
|
|
"- checked %d times\n", ftdi->stuck_status);
|
|
|
|
|
work_delay_in_msec = 100;
|
|
|
|
|
} else if (ftdi->enumerated == 0) {
|
|
|
|
|
if (ftdi_elan_enumeratePCI(ftdi) == 0) {
|
|
|
|
|
ftdi->enumerated = 1;
|
|
|
|
|
work_delay_in_msec = 250;
|
|
|
|
|
} else
|
|
|
|
|
work_delay_in_msec = 1000;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
if (ftdi_elan_setupOHCI(ftdi) == 0) {
|
|
|
|
|
ftdi->initialized = 1;
|
|
|
|
|
work_delay_in_msec = 500;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "initialized failed - trying "
|
|
|
|
|
"again in 10 seconds\n");
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
work_delay_in_msec = 1 *1000;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
} else if (ftdi->registered == 0) {
|
|
|
|
|
work_delay_in_msec = 10;
|
|
|
|
|
if (ftdi_elan_hcd_init(ftdi) == 0) {
|
|
|
|
|
ftdi->registered = 1;
|
|
|
|
|
} else
|
|
|
|
|
dev_err(&ftdi->udev->dev, "register failed\n");
|
|
|
|
|
work_delay_in_msec = 250;
|
|
|
|
|
} else {
|
|
|
|
|
if (ftdi_elan_checkingPCI(ftdi) == 0) {
|
|
|
|
|
work_delay_in_msec = 250;
|
|
|
|
|
} else if (ftdi->controlreg & 0x00400000) {
|
|
|
|
|
if (ftdi->gone_away > 0) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "PCI device eject con"
|
|
|
|
|
"firmed platform_dev.dev.parent=%p plat"
|
|
|
|
|
"form_dev.dev=%p\n",
|
|
|
|
|
ftdi->platform_dev.dev.parent,
|
|
|
|
|
&ftdi->platform_dev.dev);
|
|
|
|
|
platform_device_unregister(&ftdi->platform_dev);
|
|
|
|
|
ftdi->platform_dev.dev.parent = NULL;
|
|
|
|
|
ftdi->registered = 0;
|
|
|
|
|
ftdi->enumerated = 0;
|
|
|
|
|
ftdi->card_ejected = 0;
|
|
|
|
|
ftdi->initialized = 0;
|
|
|
|
|
ftdi->gone_away = 0;
|
|
|
|
|
} else
|
|
|
|
|
ftdi_elan_flush_targets(ftdi);
|
|
|
|
|
work_delay_in_msec = 250;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "PCI device has disappeared\n"
|
|
|
|
|
);
|
|
|
|
|
ftdi_elan_cancel_targets(ftdi);
|
|
|
|
|
work_delay_in_msec = 500;
|
|
|
|
|
ftdi->enumerated = 0;
|
|
|
|
|
ftdi->initialized = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
return;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi_status_requeue_work(ftdi,
|
|
|
|
|
msecs_to_jiffies(work_delay_in_msec));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* file_operations for the jtag interface
|
|
|
|
|
*
|
|
|
|
|
* the usage count for the device is incremented on open()
|
|
|
|
|
* and decremented on release()
|
|
|
|
|
*/
|
|
|
|
|
static int ftdi_elan_open(struct inode *inode, struct file *file)
|
|
|
|
|
{
|
|
|
|
|
int subminor = iminor(inode);
|
|
|
|
|
struct usb_interface *interface = usb_find_interface(&ftdi_elan_driver,
|
|
|
|
|
subminor);
|
|
|
|
|
if (!interface) {
|
|
|
|
|
printk(KERN_ERR "can't find device for minor %d\n", subminor);
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
struct usb_ftdi *ftdi = usb_get_intfdata(interface);
|
|
|
|
|
if (!ftdi) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
if (down_interruptible(&ftdi->sw_lock)) {
|
|
|
|
|
return -EINTR;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi_elan_get_kref(ftdi);
|
|
|
|
|
file->private_data = ftdi;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_release(struct inode *inode, struct file *file)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data;
|
|
|
|
|
if (ftdi == NULL)
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
up(&ftdi->sw_lock); /* decrement the count on our device */
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define FTDI_ELAN_IOC_MAGIC 0xA1
|
|
|
|
|
#define FTDI_ELAN_IOCDEBUG _IOC(_IOC_WRITE, FTDI_ELAN_IOC_MAGIC, 1, 132)
|
|
|
|
|
static int ftdi_elan_ioctl(struct inode *inode, struct file *file,
|
|
|
|
|
unsigned int cmd, unsigned long arg)
|
|
|
|
|
{
|
|
|
|
|
switch (cmd) {
|
|
|
|
|
case FTDI_ELAN_IOCDEBUG:{
|
|
|
|
|
char line[132];
|
|
|
|
|
int size = strncpy_from_user(line,
|
|
|
|
|
(const char __user *)arg, sizeof(line));
|
|
|
|
|
if (size < 0) {
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_ERR "TODO: ioctl %s\n", line);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
default:
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
*
|
|
|
|
|
* blocking bulk reads are used to get data from the device
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static ssize_t ftdi_elan_read(struct file *file, char __user *buffer,
|
|
|
|
|
size_t count, loff_t *ppos)
|
|
|
|
|
{
|
|
|
|
|
char data[30 *3 + 4];
|
|
|
|
|
char *d = data;
|
|
|
|
|
int m = (sizeof(data) - 1) / 3;
|
|
|
|
|
int bytes_read = 0;
|
|
|
|
|
int retry_on_empty = 10;
|
|
|
|
|
int retry_on_timeout = 5;
|
|
|
|
|
struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data;
|
|
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
data[0] = 0;
|
|
|
|
|
have:if (ftdi->bulk_in_left > 0) {
|
|
|
|
|
if (count-- > 0) {
|
|
|
|
|
char *p = ++ftdi->bulk_in_last + ftdi->bulk_in_buffer;
|
|
|
|
|
ftdi->bulk_in_left -= 1;
|
|
|
|
|
if (bytes_read < m) {
|
|
|
|
|
d += sprintf(d, " %02X", 0x000000FF & *p);
|
|
|
|
|
} else if (bytes_read > m) {
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
if (copy_to_user(buffer++, p, 1)) {
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
} else {
|
|
|
|
|
bytes_read += 1;
|
|
|
|
|
goto have;
|
|
|
|
|
}
|
|
|
|
|
} else
|
|
|
|
|
return bytes_read;
|
|
|
|
|
}
|
|
|
|
|
more:if (count > 0) {
|
|
|
|
|
int packet_bytes = 0;
|
|
|
|
|
int retval = usb_bulk_msg(ftdi->udev,
|
|
|
|
|
usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
|
|
|
|
|
ftdi->bulk_in_buffer, ftdi->bulk_in_size,
|
|
|
|
|
&packet_bytes, msecs_to_jiffies(50));
|
|
|
|
|
if (packet_bytes > 2) {
|
|
|
|
|
ftdi->bulk_in_left = packet_bytes - 2;
|
|
|
|
|
ftdi->bulk_in_last = 1;
|
|
|
|
|
goto have;
|
|
|
|
|
} else if (retval == -ETIMEDOUT) {
|
|
|
|
|
if (retry_on_timeout-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else if (bytes_read > 0) {
|
|
|
|
|
return bytes_read;
|
|
|
|
|
} else
|
|
|
|
|
return retval;
|
|
|
|
|
} else if (retval == 0) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return bytes_read;
|
|
|
|
|
} else
|
|
|
|
|
return retval;
|
|
|
|
|
} else
|
|
|
|
|
return bytes_read;
|
|
|
|
|
}
|
|
|
|
|
|
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 09:55:46 -04:00
|
|
|
static void ftdi_elan_write_bulk_callback(struct urb *urb)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context;
|
|
|
|
|
if (urb->status && !(urb->status == -ENOENT || urb->status ==
|
|
|
|
|
-ECONNRESET || urb->status == -ESHUTDOWN)) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "urb=%p write bulk status received: %"
|
|
|
|
|
"d\n", urb, urb->status);
|
|
|
|
|
}
|
|
|
|
|
usb_buffer_free(urb->dev, urb->transfer_buffer_length,
|
|
|
|
|
urb->transfer_buffer, urb->transfer_dma);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int fill_buffer_with_all_queued_commands(struct usb_ftdi *ftdi,
|
|
|
|
|
char *buf, int command_size, int total_size)
|
|
|
|
|
{
|
|
|
|
|
int ed_commands = 0;
|
|
|
|
|
int b = 0;
|
|
|
|
|
int I = command_size;
|
|
|
|
|
int i = ftdi->command_head;
|
|
|
|
|
while (I-- > 0) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[COMMAND_MASK &
|
|
|
|
|
i++];
|
|
|
|
|
int F = command->follows;
|
|
|
|
|
u8 *f = command->buffer;
|
|
|
|
|
if (command->header & 0x80) {
|
|
|
|
|
ed_commands |= 1 << (0x3 & (command->header >> 5));
|
|
|
|
|
}
|
|
|
|
|
buf[b++] = command->header;
|
|
|
|
|
buf[b++] = (command->length >> 0) & 0x00FF;
|
|
|
|
|
buf[b++] = (command->length >> 8) & 0x00FF;
|
|
|
|
|
buf[b++] = command->address;
|
|
|
|
|
buf[b++] = command->width;
|
|
|
|
|
while (F-- > 0) {
|
|
|
|
|
buf[b++] = *f++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return ed_commands;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size)
|
|
|
|
|
{
|
|
|
|
|
int total_size = 0;
|
|
|
|
|
int I = command_size;
|
|
|
|
|
int i = ftdi->command_head;
|
|
|
|
|
while (I-- > 0) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[COMMAND_MASK &
|
|
|
|
|
i++];
|
|
|
|
|
total_size += 5 + command->follows;
|
|
|
|
|
} return total_size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_command_engine(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retval;
|
|
|
|
|
char *buf;
|
|
|
|
|
int ed_commands;
|
|
|
|
|
int total_size;
|
|
|
|
|
struct urb *urb;
|
|
|
|
|
int command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
total_size = ftdi_elan_total_command_size(ftdi, command_size);
|
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
|
if (!urb) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not get a urb to write %d comm"
|
|
|
|
|
"ands totaling %d bytes to the Uxxx\n", command_size,
|
|
|
|
|
total_size);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
buf = usb_buffer_alloc(ftdi->udev, total_size, GFP_KERNEL,
|
|
|
|
|
&urb->transfer_dma);
|
|
|
|
|
if (!buf) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c"
|
|
|
|
|
"ommands totaling %d bytes to the Uxxx\n", command_size,
|
|
|
|
|
total_size);
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
ed_commands = fill_buffer_with_all_queued_commands(ftdi, buf,
|
|
|
|
|
command_size, total_size);
|
|
|
|
|
usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
|
|
|
|
|
ftdi->bulk_out_endpointAddr), buf, total_size,
|
|
|
|
|
ftdi_elan_write_bulk_callback, ftdi);
|
|
|
|
|
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
if (ed_commands) {
|
|
|
|
|
char diag[40 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = total_size;
|
|
|
|
|
u8 *c = buf;
|
|
|
|
|
int s = (sizeof(diag) - 1) / 3;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (s-- > 0 && m-- > 0) {
|
|
|
|
|
if (s > 0 || m == 0) {
|
|
|
|
|
d += sprintf(d, " %02X", *c++);
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
retval = usb_submit_urb(urb, GFP_KERNEL);
|
|
|
|
|
if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write "
|
|
|
|
|
"%d commands totaling %d bytes to the Uxxx\n", retval,
|
|
|
|
|
urb, command_size, total_size);
|
|
|
|
|
usb_buffer_free(ftdi->udev, total_size, buf, urb->transfer_dma);
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
usb_free_urb(urb); /* release our reference to this urb,
|
|
|
|
|
the USB core will eventually free it entirely */
|
|
|
|
|
ftdi->command_head += command_size;
|
|
|
|
|
ftdi_elan_kick_respond_queue(ftdi);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
|
|
|
|
|
struct u132_target *target, u8 *buffer, int length)
|
|
|
|
|
{
|
|
|
|
|
struct urb *urb = target->urb;
|
|
|
|
|
int halted = target->halted;
|
|
|
|
|
int skipped = target->skipped;
|
|
|
|
|
int actual = target->actual;
|
|
|
|
|
int non_null = target->non_null;
|
|
|
|
|
int toggle_bits = target->toggle_bits;
|
|
|
|
|
int error_count = target->error_count;
|
|
|
|
|
int condition_code = target->condition_code;
|
|
|
|
|
int repeat_number = target->repeat_number;
|
|
|
|
|
void (*callback) (void *, struct urb *, u8 *, int, int, int, int, int,
|
|
|
|
|
int, int, int, int) = target->callback;
|
|
|
|
|
target->active -= 1;
|
|
|
|
|
target->callback = NULL;
|
|
|
|
|
(*callback) (target->endp, urb, buffer, length, toggle_bits,
|
|
|
|
|
error_count, condition_code, repeat_number, halted, skipped,
|
|
|
|
|
actual, non_null);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static char *have_ed_set_response(struct usb_ftdi *ftdi,
|
|
|
|
|
struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
|
|
|
|
|
char *b)
|
|
|
|
|
{
|
|
|
|
|
int payload = (ed_length >> 0) & 0x07FF;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
target->actual = 0;
|
|
|
|
|
target->non_null = (ed_length >> 15) & 0x0001;
|
|
|
|
|
target->repeat_number = (ed_length >> 11) & 0x000F;
|
|
|
|
|
if (ed_type == 0x02) {
|
|
|
|
|
if (payload == 0 || target->abandoning > 0) {
|
|
|
|
|
target->abandoning = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
|
|
|
|
|
payload);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
return ftdi->response;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->expected = 4 + payload;
|
|
|
|
|
ftdi->ed_found = 1;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return b;
|
|
|
|
|
}
|
|
|
|
|
} else if (ed_type == 0x03) {
|
|
|
|
|
if (payload == 0 || target->abandoning > 0) {
|
|
|
|
|
target->abandoning = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
|
|
|
|
|
payload);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
return ftdi->response;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->expected = 4 + payload;
|
|
|
|
|
ftdi->ed_found = 1;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return b;
|
|
|
|
|
}
|
|
|
|
|
} else if (ed_type == 0x01) {
|
|
|
|
|
target->abandoning = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
|
|
|
|
|
payload);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
return ftdi->response;
|
|
|
|
|
} else {
|
|
|
|
|
target->abandoning = 0;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
|
|
|
|
|
payload);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
return ftdi->response;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static char *have_ed_get_response(struct usb_ftdi *ftdi,
|
|
|
|
|
struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
|
|
|
|
|
char *b)
|
|
|
|
|
{
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
target->condition_code = TD_DEVNOTRESP;
|
|
|
|
|
target->actual = (ed_length >> 0) & 0x01FF;
|
|
|
|
|
target->non_null = (ed_length >> 15) & 0x0001;
|
|
|
|
|
target->repeat_number = (ed_length >> 11) & 0x000F;
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
if (target->active)
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, NULL, 0);
|
|
|
|
|
target->abandoning = 0;
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
return ftdi->response;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* The engine tries to empty the FTDI fifo
|
|
|
|
|
*
|
|
|
|
|
* all responses found in the fifo data are dispatched thus
|
|
|
|
|
* the response buffer can only ever hold a maximum sized
|
|
|
|
|
* response from the Uxxx.
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
u8 *b = ftdi->response + ftdi->recieved;
|
|
|
|
|
int bytes_read = 0;
|
|
|
|
|
int retry_on_empty = 1;
|
|
|
|
|
int retry_on_timeout = 3;
|
|
|
|
|
int empty_packets = 0;
|
|
|
|
|
read:{
|
|
|
|
|
int packet_bytes = 0;
|
|
|
|
|
int retval = usb_bulk_msg(ftdi->udev,
|
|
|
|
|
usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
|
|
|
|
|
ftdi->bulk_in_buffer, ftdi->bulk_in_size,
|
|
|
|
|
&packet_bytes, msecs_to_jiffies(500));
|
|
|
|
|
char diag[30 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = packet_bytes;
|
|
|
|
|
u8 *c = ftdi->bulk_in_buffer;
|
|
|
|
|
int s = (sizeof(diag) - 1) / 3;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (s-- > 0 && m-- > 0) {
|
|
|
|
|
if (s > 0 || m == 0) {
|
|
|
|
|
d += sprintf(d, " %02X", *c++);
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
}
|
|
|
|
|
if (packet_bytes > 2) {
|
|
|
|
|
ftdi->bulk_in_left = packet_bytes - 2;
|
|
|
|
|
ftdi->bulk_in_last = 1;
|
|
|
|
|
goto have;
|
|
|
|
|
} else if (retval == -ETIMEDOUT) {
|
|
|
|
|
if (retry_on_timeout-- > 0) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "TIMED OUT with packe"
|
|
|
|
|
"t_bytes = %d with total %d bytes%s\n",
|
|
|
|
|
packet_bytes, bytes_read, diag);
|
|
|
|
|
goto more;
|
|
|
|
|
} else if (bytes_read > 0) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "ONLY %d bytes%s\n",
|
|
|
|
|
bytes_read, diag);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "TIMED OUT with packe"
|
|
|
|
|
"t_bytes = %d with total %d bytes%s\n",
|
|
|
|
|
packet_bytes, bytes_read, diag);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == -EILSEQ) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "error = %d with packet_bytes"
|
|
|
|
|
" = %d with total %d bytes%s\n", retval,
|
|
|
|
|
packet_bytes, bytes_read, diag);
|
|
|
|
|
return retval;
|
|
|
|
|
} else if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "error = %d with packet_bytes"
|
|
|
|
|
" = %d with total %d bytes%s\n", retval,
|
|
|
|
|
packet_bytes, bytes_read, diag);
|
|
|
|
|
return retval;
|
|
|
|
|
} else if (packet_bytes == 2) {
|
|
|
|
|
unsigned char s0 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
unsigned char s1 = ftdi->bulk_in_buffer[1];
|
|
|
|
|
empty_packets += 1;
|
|
|
|
|
if (s0 == 0x31 && s1 == 0x60) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (s0 == 0x31 && s1 == 0x00) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
} else if (packet_bytes == 1) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
more:{
|
|
|
|
|
goto read;
|
|
|
|
|
}
|
|
|
|
|
have:if (ftdi->bulk_in_left > 0) {
|
|
|
|
|
u8 c = ftdi->bulk_in_buffer[++ftdi->bulk_in_last];
|
|
|
|
|
bytes_read += 1;
|
|
|
|
|
ftdi->bulk_in_left -= 1;
|
|
|
|
|
if (ftdi->recieved == 0 && c == 0xFF) {
|
|
|
|
|
goto have;
|
|
|
|
|
} else
|
|
|
|
|
*b++ = c;
|
|
|
|
|
if (++ftdi->recieved < ftdi->expected) {
|
|
|
|
|
goto have;
|
|
|
|
|
} else if (ftdi->ed_found) {
|
|
|
|
|
int ed_number = (ftdi->response[0] >> 5) & 0x03;
|
|
|
|
|
u16 ed_length = (ftdi->response[2] << 8) |
|
|
|
|
|
ftdi->response[1];
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed_number];
|
|
|
|
|
int payload = (ed_length >> 0) & 0x07FF;
|
|
|
|
|
char diag[30 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = payload;
|
|
|
|
|
u8 *c = 4 + ftdi->response;
|
|
|
|
|
int s = (sizeof(diag) - 1) / 3;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (s-- > 0 && m-- > 0) {
|
|
|
|
|
if (s > 0 || m == 0) {
|
|
|
|
|
d += sprintf(d, " %02X", *c++);
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
}
|
|
|
|
|
ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
|
|
|
|
|
payload);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
b = ftdi->response;
|
|
|
|
|
goto have;
|
|
|
|
|
} else if (ftdi->expected == 8) {
|
|
|
|
|
u8 buscmd;
|
|
|
|
|
int respond_head = ftdi->respond_head++;
|
|
|
|
|
struct u132_respond *respond = &ftdi->respond[
|
|
|
|
|
RESPOND_MASK & respond_head];
|
|
|
|
|
u32 data = ftdi->response[7];
|
|
|
|
|
data <<= 8;
|
|
|
|
|
data |= ftdi->response[6];
|
|
|
|
|
data <<= 8;
|
|
|
|
|
data |= ftdi->response[5];
|
|
|
|
|
data <<= 8;
|
|
|
|
|
data |= ftdi->response[4];
|
|
|
|
|
*respond->value = data;
|
|
|
|
|
*respond->result = 0;
|
|
|
|
|
complete(&respond->wait_completion);
|
|
|
|
|
ftdi->recieved = 0;
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
ftdi->ed_found = 0;
|
|
|
|
|
b = ftdi->response;
|
|
|
|
|
buscmd = (ftdi->response[0] >> 0) & 0x0F;
|
|
|
|
|
if (buscmd == 0x00) {
|
|
|
|
|
} else if (buscmd == 0x02) {
|
|
|
|
|
} else if (buscmd == 0x06) {
|
|
|
|
|
} else if (buscmd == 0x0A) {
|
|
|
|
|
} else
|
|
|
|
|
dev_err(&ftdi->udev->dev, "Uxxx unknown(%0X) va"
|
|
|
|
|
"lue = %08X\n", buscmd, data);
|
|
|
|
|
goto have;
|
|
|
|
|
} else {
|
|
|
|
|
if ((ftdi->response[0] & 0x80) == 0x00) {
|
|
|
|
|
ftdi->expected = 8;
|
|
|
|
|
goto have;
|
|
|
|
|
} else {
|
|
|
|
|
int ed_number = (ftdi->response[0] >> 5) & 0x03;
|
|
|
|
|
int ed_type = (ftdi->response[0] >> 0) & 0x03;
|
|
|
|
|
u16 ed_length = (ftdi->response[2] << 8) |
|
|
|
|
|
ftdi->response[1];
|
|
|
|
|
struct u132_target *target = &ftdi->target[
|
|
|
|
|
ed_number];
|
|
|
|
|
target->halted = (ftdi->response[0] >> 3) &
|
|
|
|
|
0x01;
|
|
|
|
|
target->skipped = (ftdi->response[0] >> 2) &
|
|
|
|
|
0x01;
|
|
|
|
|
target->toggle_bits = (ftdi->response[3] >> 6)
|
|
|
|
|
& 0x03;
|
|
|
|
|
target->error_count = (ftdi->response[3] >> 4)
|
|
|
|
|
& 0x03;
|
|
|
|
|
target->condition_code = (ftdi->response[
|
|
|
|
|
3] >> 0) & 0x0F;
|
|
|
|
|
if ((ftdi->response[0] & 0x10) == 0x00) {
|
|
|
|
|
b = have_ed_set_response(ftdi, target,
|
|
|
|
|
ed_length, ed_number, ed_type,
|
|
|
|
|
b);
|
|
|
|
|
goto have;
|
|
|
|
|
} else {
|
|
|
|
|
b = have_ed_get_response(ftdi, target,
|
|
|
|
|
ed_length, ed_number, ed_type,
|
|
|
|
|
b);
|
|
|
|
|
goto have;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else
|
|
|
|
|
goto more;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* create a urb, and a buffer for it, and copy the data to the urb
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static ssize_t ftdi_elan_write(struct file *file,
|
|
|
|
|
const char __user *user_buffer, size_t count,
|
|
|
|
|
loff_t *ppos)
|
|
|
|
|
{
|
|
|
|
|
int retval = 0;
|
|
|
|
|
struct urb *urb;
|
|
|
|
|
char *buf;
|
2006-10-09 15:24:49 -04:00
|
|
|
struct usb_ftdi *ftdi = file->private_data;
|
|
|
|
|
|
2006-09-13 06:26:04 -04:00
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
if (count == 0) {
|
|
|
|
|
goto exit;
|
|
|
|
|
}
|
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
|
if (!urb) {
|
|
|
|
|
retval = -ENOMEM;
|
|
|
|
|
goto error_1;
|
|
|
|
|
}
|
|
|
|
|
buf = usb_buffer_alloc(ftdi->udev, count, GFP_KERNEL,
|
|
|
|
|
&urb->transfer_dma);
|
|
|
|
|
if (!buf) {
|
|
|
|
|
retval = -ENOMEM;
|
|
|
|
|
goto error_2;
|
|
|
|
|
}
|
|
|
|
|
if (copy_from_user(buf, user_buffer, count)) {
|
|
|
|
|
retval = -EFAULT;
|
|
|
|
|
goto error_3;
|
|
|
|
|
}
|
|
|
|
|
usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
|
|
|
|
|
ftdi->bulk_out_endpointAddr), buf, count,
|
|
|
|
|
ftdi_elan_write_bulk_callback, ftdi);
|
|
|
|
|
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
retval = usb_submit_urb(urb, GFP_KERNEL);
|
|
|
|
|
if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "failed submitting write urb, error %"
|
|
|
|
|
"d\n", retval);
|
2006-10-09 15:24:49 -04:00
|
|
|
goto error_3;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
usb_free_urb(urb);
|
2006-10-09 15:24:49 -04:00
|
|
|
|
|
|
|
|
exit:
|
2006-09-13 06:26:04 -04:00
|
|
|
return count;
|
2006-10-09 15:24:49 -04:00
|
|
|
error_3:
|
|
|
|
|
usb_buffer_free(ftdi->udev, count, buf, urb->transfer_dma);
|
|
|
|
|
error_2:
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
error_1:
|
|
|
|
|
return retval;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
2007-02-12 03:55:34 -05:00
|
|
|
static const struct file_operations ftdi_elan_fops = {
|
2006-09-13 06:26:04 -04:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
.llseek = no_llseek,
|
|
|
|
|
.ioctl = ftdi_elan_ioctl,
|
|
|
|
|
.read = ftdi_elan_read,
|
|
|
|
|
.write = ftdi_elan_write,
|
|
|
|
|
.open = ftdi_elan_open,
|
|
|
|
|
.release = ftdi_elan_release,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* usb class driver info in order to get a minor number from the usb core,
|
|
|
|
|
* and to have the device registered with the driver core
|
|
|
|
|
*/
|
|
|
|
|
static struct usb_class_driver ftdi_elan_jtag_class = {
|
|
|
|
|
.name = "ftdi-%d-jtag",
|
|
|
|
|
.fops = &ftdi_elan_fops,
|
|
|
|
|
.minor_base = USB_FTDI_ELAN_MINOR_BASE,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* the following definitions are for the
|
|
|
|
|
* ELAN FPGA state machgine processor that
|
|
|
|
|
* lies on the other side of the FTDI chip
|
|
|
|
|
*/
|
|
|
|
|
#define cPCIu132rd 0x0
|
|
|
|
|
#define cPCIu132wr 0x1
|
|
|
|
|
#define cPCIiord 0x2
|
|
|
|
|
#define cPCIiowr 0x3
|
|
|
|
|
#define cPCImemrd 0x6
|
|
|
|
|
#define cPCImemwr 0x7
|
|
|
|
|
#define cPCIcfgrd 0xA
|
|
|
|
|
#define cPCIcfgwr 0xB
|
|
|
|
|
#define cPCInull 0xF
|
|
|
|
|
#define cU132cmd_status 0x0
|
|
|
|
|
#define cU132flash 0x1
|
|
|
|
|
#define cPIDsetup 0x0
|
|
|
|
|
#define cPIDout 0x1
|
|
|
|
|
#define cPIDin 0x2
|
|
|
|
|
#define cPIDinonce 0x3
|
|
|
|
|
#define cCCnoerror 0x0
|
|
|
|
|
#define cCCcrc 0x1
|
|
|
|
|
#define cCCbitstuff 0x2
|
|
|
|
|
#define cCCtoggle 0x3
|
|
|
|
|
#define cCCstall 0x4
|
|
|
|
|
#define cCCnoresp 0x5
|
|
|
|
|
#define cCCbadpid1 0x6
|
|
|
|
|
#define cCCbadpid2 0x7
|
|
|
|
|
#define cCCdataoverrun 0x8
|
|
|
|
|
#define cCCdataunderrun 0x9
|
|
|
|
|
#define cCCbuffoverrun 0xC
|
|
|
|
|
#define cCCbuffunderrun 0xD
|
|
|
|
|
#define cCCnotaccessed 0xF
|
|
|
|
|
static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data)
|
|
|
|
|
{
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x00 | cPCIu132wr;
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
command->address = 0x00;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 4;
|
|
|
|
|
command->value = data;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset,
|
|
|
|
|
u8 width, u32 data)
|
|
|
|
|
{
|
|
|
|
|
u8 addressofs = config_offset / 4;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x00 | (cPCIcfgwr & 0x0F);
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
command->address = addressofs;
|
|
|
|
|
command->width = 0x00 | (width & 0x0F);
|
|
|
|
|
command->follows = 4;
|
|
|
|
|
command->value = data;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset,
|
|
|
|
|
u8 width, u32 data)
|
|
|
|
|
{
|
|
|
|
|
u8 addressofs = mem_offset / 4;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x00 | (cPCImemwr & 0x0F);
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
command->address = addressofs;
|
|
|
|
|
command->width = 0x00 | (width & 0x0F);
|
|
|
|
|
command->follows = 4;
|
|
|
|
|
command->value = data;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset,
|
|
|
|
|
u8 width, u32 data)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_write_pcimem(ftdi, mem_offset, width, data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_write_pcimem);
|
|
|
|
|
static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data)
|
|
|
|
|
{
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
int respond_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
respond_size = ftdi->respond_next - ftdi->respond_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
|
|
|
|
|
{
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
struct u132_respond *respond = &ftdi->respond[
|
|
|
|
|
RESPOND_MASK & ftdi->respond_next];
|
|
|
|
|
int result = -ENODEV;
|
|
|
|
|
respond->result = &result;
|
|
|
|
|
respond->header = command->header = 0x00 | cPCIu132rd;
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
respond->address = command->address = cU132cmd_status;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
respond->value = data;
|
|
|
|
|
init_completion(&respond->wait_completion);
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi->respond_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
wait_for_completion(&respond->wait_completion);
|
|
|
|
|
return result;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset,
|
|
|
|
|
u8 width, u32 *data)
|
|
|
|
|
{
|
|
|
|
|
u8 addressofs = config_offset / 4;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
int respond_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
respond_size = ftdi->respond_next - ftdi->respond_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
|
|
|
|
|
{
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
struct u132_respond *respond = &ftdi->respond[
|
|
|
|
|
RESPOND_MASK & ftdi->respond_next];
|
|
|
|
|
int result = -ENODEV;
|
|
|
|
|
respond->result = &result;
|
|
|
|
|
respond->header = command->header = 0x00 | (cPCIcfgrd &
|
|
|
|
|
0x0F);
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
respond->address = command->address = addressofs;
|
|
|
|
|
command->width = 0x00 | (width & 0x0F);
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
respond->value = data;
|
|
|
|
|
init_completion(&respond->wait_completion);
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi->respond_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
wait_for_completion(&respond->wait_completion);
|
|
|
|
|
return result;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset,
|
|
|
|
|
u8 width, u32 *data)
|
|
|
|
|
{
|
|
|
|
|
u8 addressofs = mem_offset / 4;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
int respond_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
respond_size = ftdi->respond_next - ftdi->respond_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
|
|
|
|
|
{
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
struct u132_respond *respond = &ftdi->respond[
|
|
|
|
|
RESPOND_MASK & ftdi->respond_next];
|
|
|
|
|
int result = -ENODEV;
|
|
|
|
|
respond->result = &result;
|
|
|
|
|
respond->header = command->header = 0x00 | (cPCImemrd &
|
|
|
|
|
0x0F);
|
|
|
|
|
command->length = 0x04;
|
|
|
|
|
respond->address = command->address = addressofs;
|
|
|
|
|
command->width = 0x00 | (width & 0x0F);
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
respond->value = data;
|
|
|
|
|
init_completion(&respond->wait_completion);
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi->respond_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
wait_for_completion(&respond->wait_completion);
|
|
|
|
|
return result;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset,
|
|
|
|
|
u8 width, u32 *data)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else
|
|
|
|
|
return ftdi_elan_read_pcimem(ftdi, mem_offset, width, data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_pcimem);
|
|
|
|
|
static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x80 | (ed << 5);
|
|
|
|
|
command->length = 0x8007;
|
|
|
|
|
command->address = (toggle_bits << 6) | (ep_number << 2)
|
|
|
|
|
| (address << 0);
|
|
|
|
|
command->width = usb_maxpacket(urb->dev, urb->pipe,
|
|
|
|
|
usb_pipeout(urb->pipe));
|
|
|
|
|
command->follows = 8;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = urb->setup_packet;
|
|
|
|
|
target->callback = callback;
|
|
|
|
|
target->endp = endp;
|
|
|
|
|
target->urb = urb;
|
|
|
|
|
target->active = 1;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_setup(ftdi, ed_number, endp, urb, address,
|
|
|
|
|
ep_number, toggle_bits, callback);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_setup);
|
|
|
|
|
static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
int remaining_length = urb->transfer_buffer_length -
|
|
|
|
|
urb->actual_length;
|
|
|
|
|
command->header = 0x82 | (ed << 5);
|
|
|
|
|
if (remaining_length == 0) {
|
|
|
|
|
command->length = 0x0000;
|
|
|
|
|
} else if (remaining_length > 1024) {
|
|
|
|
|
command->length = 0x8000 | 1023;
|
|
|
|
|
} else
|
|
|
|
|
command->length = 0x8000 | (remaining_length -
|
|
|
|
|
1);
|
|
|
|
|
command->address = (toggle_bits << 6) | (ep_number << 2)
|
|
|
|
|
| (address << 0);
|
|
|
|
|
command->width = usb_maxpacket(urb->dev, urb->pipe,
|
|
|
|
|
usb_pipeout(urb->pipe));
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
target->callback = callback;
|
|
|
|
|
target->endp = endp;
|
|
|
|
|
target->urb = urb;
|
|
|
|
|
target->active = 1;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_input(ftdi, ed_number, endp, urb, address,
|
|
|
|
|
ep_number, toggle_bits, callback);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_input);
|
|
|
|
|
static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x81 | (ed << 5);
|
|
|
|
|
command->length = 0x0000;
|
|
|
|
|
command->address = (toggle_bits << 6) | (ep_number << 2)
|
|
|
|
|
| (address << 0);
|
|
|
|
|
command->width = usb_maxpacket(urb->dev, urb->pipe,
|
|
|
|
|
usb_pipeout(urb->pipe));
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
target->callback = callback;
|
|
|
|
|
target->endp = endp;
|
|
|
|
|
target->urb = urb;
|
|
|
|
|
target->active = 1;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_empty(ftdi, ed_number, endp, urb, address,
|
|
|
|
|
ep_number, toggle_bits, callback);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_empty);
|
|
|
|
|
static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
u8 *b;
|
|
|
|
|
u16 urb_size;
|
|
|
|
|
int i = 0;
|
|
|
|
|
char data[30 *3 + 4];
|
|
|
|
|
char *d = data;
|
|
|
|
|
int m = (sizeof(data) - 1) / 3;
|
|
|
|
|
int l = 0;
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x81 | (ed << 5);
|
|
|
|
|
command->address = (toggle_bits << 6) | (ep_number << 2)
|
|
|
|
|
| (address << 0);
|
|
|
|
|
command->width = usb_maxpacket(urb->dev, urb->pipe,
|
|
|
|
|
usb_pipeout(urb->pipe));
|
|
|
|
|
command->follows = min(1024,
|
|
|
|
|
urb->transfer_buffer_length -
|
|
|
|
|
urb->actual_length);
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = urb->transfer_buffer +
|
|
|
|
|
urb->actual_length;
|
|
|
|
|
command->length = 0x8000 | (command->follows - 1);
|
|
|
|
|
b = command->buffer;
|
|
|
|
|
urb_size = command->follows;
|
|
|
|
|
data[0] = 0;
|
|
|
|
|
while (urb_size-- > 0) {
|
|
|
|
|
if (i > m) {
|
|
|
|
|
} else if (i++ < m) {
|
|
|
|
|
int w = sprintf(d, " %02X", *b++);
|
|
|
|
|
d += w;
|
|
|
|
|
l += w;
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
}
|
|
|
|
|
target->callback = callback;
|
|
|
|
|
target->endp = endp;
|
|
|
|
|
target->urb = urb;
|
|
|
|
|
target->active = 1;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_output(ftdi, ed_number, endp, urb, address,
|
|
|
|
|
ep_number, toggle_bits, callback);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_output);
|
|
|
|
|
static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
wait:if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
int command_size;
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
command_size = ftdi->command_next - ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
int remaining_length = urb->transfer_buffer_length -
|
|
|
|
|
urb->actual_length;
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
struct u132_command *command = &ftdi->command[
|
|
|
|
|
COMMAND_MASK & ftdi->command_next];
|
|
|
|
|
command->header = 0x83 | (ed << 5);
|
|
|
|
|
if (remaining_length == 0) {
|
|
|
|
|
command->length = 0x0000;
|
|
|
|
|
} else if (remaining_length > 1024) {
|
|
|
|
|
command->length = 0x8000 | 1023;
|
|
|
|
|
} else
|
|
|
|
|
command->length = 0x8000 | (remaining_length -
|
|
|
|
|
1);
|
|
|
|
|
command->address = (toggle_bits << 6) | (ep_number << 2)
|
|
|
|
|
| (address << 0);
|
|
|
|
|
command->width = usb_maxpacket(urb->dev, urb->pipe,
|
|
|
|
|
usb_pipeout(urb->pipe));
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = NULL;
|
|
|
|
|
target->callback = callback;
|
|
|
|
|
target->endp = endp;
|
|
|
|
|
target->urb = urb;
|
|
|
|
|
target->active = 1;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
goto wait;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
|
|
|
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
|
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
|
|
|
int halted, int skipped, int actual, int non_null))
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_single(ftdi, ed_number, endp, urb, address,
|
|
|
|
|
ep_number, toggle_bits, callback);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_single);
|
|
|
|
|
static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number,
|
|
|
|
|
void *endp)
|
|
|
|
|
{
|
|
|
|
|
u8 ed = ed_number - 1;
|
|
|
|
|
if (ftdi->disconnected > 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else if (ftdi->initialized == 0) {
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
struct u132_target *target = &ftdi->target[ed];
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
if (target->abandoning > 0) {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
target->abandoning = 1;
|
|
|
|
|
wait_1:if (target->active == 1) {
|
|
|
|
|
int command_size = ftdi->command_next -
|
|
|
|
|
ftdi->command_head;
|
|
|
|
|
if (command_size < COMMAND_SIZE) {
|
|
|
|
|
struct u132_command *command =
|
|
|
|
|
&ftdi->command[COMMAND_MASK &
|
|
|
|
|
ftdi->command_next];
|
|
|
|
|
command->header = 0x80 | (ed << 5) |
|
|
|
|
|
0x4;
|
|
|
|
|
command->length = 0x00;
|
|
|
|
|
command->address = 0x00;
|
|
|
|
|
command->width = 0x00;
|
|
|
|
|
command->follows = 0;
|
|
|
|
|
command->value = 0;
|
|
|
|
|
command->buffer = &command->value;
|
|
|
|
|
ftdi->command_next += 1;
|
|
|
|
|
ftdi_elan_kick_command_queue(ftdi);
|
|
|
|
|
} else {
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
msleep(100);
|
|
|
|
|
down(&ftdi->u132_lock);
|
|
|
|
|
goto wait_1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
up(&ftdi->u132_lock);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number,
|
|
|
|
|
void *endp)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
|
|
|
|
|
return ftdi_elan_edset_flush(ftdi, ed_number, endp);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_flush);
|
|
|
|
|
static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retry_on_empty = 10;
|
|
|
|
|
int retry_on_timeout = 5;
|
|
|
|
|
int retry_on_status = 20;
|
|
|
|
|
more:{
|
|
|
|
|
int packet_bytes = 0;
|
|
|
|
|
int retval = usb_bulk_msg(ftdi->udev,
|
|
|
|
|
usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
|
|
|
|
|
ftdi->bulk_in_buffer, ftdi->bulk_in_size,
|
|
|
|
|
&packet_bytes, msecs_to_jiffies(100));
|
|
|
|
|
if (packet_bytes > 2) {
|
|
|
|
|
char diag[30 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = (sizeof(diag) - 1) / 3;
|
|
|
|
|
char *b = ftdi->bulk_in_buffer;
|
|
|
|
|
int bytes_read = 0;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (packet_bytes-- > 0) {
|
|
|
|
|
char c = *b++;
|
|
|
|
|
if (bytes_read < m) {
|
|
|
|
|
d += sprintf(d, " %02X",
|
|
|
|
|
0x000000FF & c);
|
|
|
|
|
} else if (bytes_read > m) {
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
bytes_read += 1;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
goto more;
|
|
|
|
|
} else if (packet_bytes > 1) {
|
|
|
|
|
char s1 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
char s2 = ftdi->bulk_in_buffer[1];
|
|
|
|
|
if (s1 == 0x31 && s2 == 0x60) {
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (retry_on_status-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
|
|
|
|
|
"imit reached\n");
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
} else if (packet_bytes > 0) {
|
|
|
|
|
char b1 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
dev_err(&ftdi->udev->dev, "only one byte flushed from F"
|
|
|
|
|
"TDI = %02X\n", b1);
|
|
|
|
|
if (retry_on_status-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
|
|
|
|
|
"imit reached\n");
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == -ETIMEDOUT) {
|
|
|
|
|
if (retry_on_timeout-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "TIMED OUT retry limi"
|
|
|
|
|
"t reached\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == 0) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "empty packet retry l"
|
|
|
|
|
"imit reached\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "error = %d\n", retval);
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* send the long flush sequence
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retval;
|
|
|
|
|
struct urb *urb;
|
|
|
|
|
char *buf;
|
|
|
|
|
int I = 257;
|
|
|
|
|
int i = 0;
|
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
|
if (!urb) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not alloc a urb for flush sequ"
|
|
|
|
|
"ence\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
|
|
|
|
|
if (!buf) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq"
|
|
|
|
|
"uence\n");
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
while (I-- > 0)
|
|
|
|
|
buf[i++] = 0x55;
|
|
|
|
|
usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
|
|
|
|
|
ftdi->bulk_out_endpointAddr), buf, i,
|
|
|
|
|
ftdi_elan_write_bulk_callback, ftdi);
|
|
|
|
|
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
retval = usb_submit_urb(urb, GFP_KERNEL);
|
|
|
|
|
if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
|
|
|
|
|
"flush sequence\n");
|
|
|
|
|
usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma);
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* send the reset sequence
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retval;
|
|
|
|
|
struct urb *urb;
|
|
|
|
|
char *buf;
|
|
|
|
|
int I = 4;
|
|
|
|
|
int i = 0;
|
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
|
if (!urb) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not get a urb for the reset se"
|
|
|
|
|
"quence\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
|
|
|
|
|
if (!buf) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "could not get a buffer for the reset"
|
|
|
|
|
" sequence\n");
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
buf[i++] = 0x55;
|
|
|
|
|
buf[i++] = 0xAA;
|
|
|
|
|
buf[i++] = 0x5A;
|
|
|
|
|
buf[i++] = 0xA5;
|
|
|
|
|
usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
|
|
|
|
|
ftdi->bulk_out_endpointAddr), buf, i,
|
|
|
|
|
ftdi_elan_write_bulk_callback, ftdi);
|
|
|
|
|
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
retval = usb_submit_urb(urb, GFP_KERNEL);
|
|
|
|
|
if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
|
|
|
|
|
"reset sequence\n");
|
|
|
|
|
usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma);
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
usb_free_urb(urb);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_synchronize(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retval;
|
|
|
|
|
int long_stop = 10;
|
|
|
|
|
int retry_on_timeout = 5;
|
|
|
|
|
int retry_on_empty = 10;
|
|
|
|
|
int err_count = 0;
|
|
|
|
|
retval = ftdi_elan_flush_input_fifo(ftdi);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
ftdi->bulk_in_left = 0;
|
|
|
|
|
ftdi->bulk_in_last = -1;
|
|
|
|
|
while (long_stop-- > 0) {
|
|
|
|
|
int read_stop;
|
|
|
|
|
int read_stuck;
|
|
|
|
|
retval = ftdi_elan_synchronize_flush(ftdi);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_elan_flush_input_fifo(ftdi);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
reset:retval = ftdi_elan_synchronize_reset(ftdi);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
read_stop = 100;
|
|
|
|
|
read_stuck = 10;
|
|
|
|
|
read:{
|
|
|
|
|
int packet_bytes = 0;
|
|
|
|
|
retval = usb_bulk_msg(ftdi->udev,
|
|
|
|
|
usb_rcvbulkpipe(ftdi->udev,
|
|
|
|
|
ftdi->bulk_in_endpointAddr),
|
|
|
|
|
ftdi->bulk_in_buffer, ftdi->bulk_in_size,
|
|
|
|
|
&packet_bytes, msecs_to_jiffies(500));
|
|
|
|
|
if (packet_bytes > 2) {
|
|
|
|
|
char diag[30 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = (sizeof(diag) - 1) / 3;
|
|
|
|
|
char *b = ftdi->bulk_in_buffer;
|
|
|
|
|
int bytes_read = 0;
|
|
|
|
|
unsigned char c = 0;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (packet_bytes-- > 0) {
|
|
|
|
|
c = *b++;
|
|
|
|
|
if (bytes_read < m) {
|
|
|
|
|
d += sprintf(d, " %02X", c);
|
|
|
|
|
} else if (bytes_read > m) {
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
bytes_read += 1;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
if (c == 0x7E) {
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
if (c == 0x55) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else if (read_stop-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "retr"
|
|
|
|
|
"y limit reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else if (packet_bytes > 1) {
|
|
|
|
|
unsigned char s1 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
unsigned char s2 = ftdi->bulk_in_buffer[1];
|
|
|
|
|
if (s1 == 0x31 && s2 == 0x00) {
|
|
|
|
|
if (read_stuck-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else
|
|
|
|
|
goto reset;
|
|
|
|
|
} else if (s1 == 0x31 && s2 == 0x60) {
|
|
|
|
|
if (read_stop-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "retr"
|
|
|
|
|
"y limit reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
if (read_stop-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "retr"
|
|
|
|
|
"y limit reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else if (packet_bytes > 0) {
|
|
|
|
|
if (read_stop-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "retry limit "
|
|
|
|
|
"reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == -ETIMEDOUT) {
|
|
|
|
|
if (retry_on_timeout-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "TIMED OUT re"
|
|
|
|
|
"try limit reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == 0) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "empty packet"
|
|
|
|
|
" retry limit reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
err_count += 1;
|
|
|
|
|
dev_err(&ftdi->udev->dev, "error = %d\n",
|
|
|
|
|
retval);
|
|
|
|
|
if (read_stop-- > 0) {
|
|
|
|
|
goto read;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "retry limit "
|
|
|
|
|
"reached\n");
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
dev_err(&ftdi->udev->dev, "failed to synchronize\n");
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int retry_on_empty = 10;
|
|
|
|
|
int retry_on_timeout = 5;
|
|
|
|
|
int retry_on_status = 50;
|
|
|
|
|
more:{
|
|
|
|
|
int packet_bytes = 0;
|
|
|
|
|
int retval = usb_bulk_msg(ftdi->udev,
|
|
|
|
|
usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
|
|
|
|
|
ftdi->bulk_in_buffer, ftdi->bulk_in_size,
|
|
|
|
|
&packet_bytes, msecs_to_jiffies(1000));
|
|
|
|
|
if (packet_bytes > 2) {
|
|
|
|
|
char diag[30 *3 + 4];
|
|
|
|
|
char *d = diag;
|
|
|
|
|
int m = (sizeof(diag) - 1) / 3;
|
|
|
|
|
char *b = ftdi->bulk_in_buffer;
|
|
|
|
|
int bytes_read = 0;
|
|
|
|
|
diag[0] = 0;
|
|
|
|
|
while (packet_bytes-- > 0) {
|
|
|
|
|
char c = *b++;
|
|
|
|
|
if (bytes_read < m) {
|
|
|
|
|
d += sprintf(d, " %02X",
|
|
|
|
|
0x000000FF & c);
|
|
|
|
|
} else if (bytes_read > m) {
|
|
|
|
|
} else
|
|
|
|
|
d += sprintf(d, " ..");
|
|
|
|
|
bytes_read += 1;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
goto more;
|
|
|
|
|
} else if (packet_bytes > 1) {
|
|
|
|
|
char s1 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
char s2 = ftdi->bulk_in_buffer[1];
|
|
|
|
|
if (s1 == 0x31 && s2 == 0x60) {
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (retry_on_status-- > 0) {
|
|
|
|
|
msleep(5);
|
|
|
|
|
goto more;
|
|
|
|
|
} else
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
} else if (packet_bytes > 0) {
|
|
|
|
|
char b1 = ftdi->bulk_in_buffer[0];
|
|
|
|
|
dev_err(&ftdi->udev->dev, "only one byte flushed from F"
|
|
|
|
|
"TDI = %02X\n", b1);
|
|
|
|
|
if (retry_on_status-- > 0) {
|
|
|
|
|
msleep(5);
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "STATUS ERROR retry l"
|
|
|
|
|
"imit reached\n");
|
|
|
|
|
return -EFAULT;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == -ETIMEDOUT) {
|
|
|
|
|
if (retry_on_timeout-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "TIMED OUT retry limi"
|
|
|
|
|
"t reached\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
} else if (retval == 0) {
|
|
|
|
|
if (retry_on_empty-- > 0) {
|
|
|
|
|
goto more;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "empty packet retry l"
|
|
|
|
|
"imit reached\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "error = %d\n", retval);
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
int UxxxStatus = ftdi_elan_read_reg(ftdi, &ftdi->controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
if (ftdi->controlreg & 0x00400000) {
|
|
|
|
|
if (ftdi->card_ejected) {
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->card_ejected = 1;
|
|
|
|
|
dev_err(&ftdi->udev->dev, "CARD EJECTED - controlreg = "
|
|
|
|
|
"%08X\n", ftdi->controlreg);
|
|
|
|
|
}
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
u8 fn = ftdi->function - 1;
|
|
|
|
|
int activePCIfn = fn << 8;
|
|
|
|
|
u32 pcidata;
|
|
|
|
|
u32 pciVID;
|
|
|
|
|
u32 pciPID;
|
|
|
|
|
int reg = 0;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
pciVID = pcidata & 0xFFFF;
|
|
|
|
|
pciPID = (pcidata >> 16) & 0xFFFF;
|
|
|
|
|
if (pciVID == ftdi->platform_data.vendor && pciPID ==
|
|
|
|
|
ftdi->platform_data.device) {
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "vendor=%04X pciVID=%04X devi"
|
|
|
|
|
"ce=%04X pciPID=%04X\n",
|
|
|
|
|
ftdi->platform_data.vendor, pciVID,
|
|
|
|
|
ftdi->platform_data.device, pciPID);
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
|
|
|
|
|
#define ftdi_read_pcimem(ftdi, member, data) ftdi_elan_read_pcimem(ftdi, \
|
|
|
|
|
offsetof(struct ohci_regs, member), 0, data);
|
|
|
|
|
#define ftdi_write_pcimem(ftdi, member, data) ftdi_elan_write_pcimem(ftdi, \
|
|
|
|
|
offsetof(struct ohci_regs, member), 0, data);
|
2007-04-29 13:21:14 -04:00
|
|
|
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
|
|
|
|
|
#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
|
|
|
|
|
OHCI_INTR_WDH)
|
|
|
|
|
static int ftdi_elan_check_controller(struct usb_ftdi *ftdi, int quirk)
|
|
|
|
|
{
|
|
|
|
|
int devices = 0;
|
|
|
|
|
int retval;
|
|
|
|
|
u32 hc_control;
|
|
|
|
|
int num_ports;
|
|
|
|
|
u32 control;
|
|
|
|
|
u32 rh_a = -1;
|
|
|
|
|
u32 status;
|
|
|
|
|
u32 fminterval;
|
|
|
|
|
u32 hc_fminterval;
|
|
|
|
|
u32 periodicstart;
|
|
|
|
|
u32 cmdstatus;
|
|
|
|
|
u32 roothub_a;
|
|
|
|
|
int mask = OHCI_INTR_INIT;
|
|
|
|
|
int sleep_time = 0;
|
|
|
|
|
int reset_timeout = 30; /* ... allow extra time */
|
|
|
|
|
int temp;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, intrdisable, OHCI_INTR_MIE);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, roothub.a, &rh_a);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
num_ports = rh_a & RH_A_NDP;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, fminterval, &hc_fminterval);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
hc_fminterval &= 0x3fff;
|
|
|
|
|
if (hc_fminterval != FI) {
|
|
|
|
|
}
|
|
|
|
|
hc_fminterval |= FSMP(hc_fminterval) << 16;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &hc_control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
switch (hc_control & OHCI_CTRL_HCFS) {
|
|
|
|
|
case OHCI_USB_OPER:
|
|
|
|
|
sleep_time = 0;
|
|
|
|
|
break;
|
|
|
|
|
case OHCI_USB_SUSPEND:
|
|
|
|
|
case OHCI_USB_RESUME:
|
|
|
|
|
hc_control &= OHCI_CTRL_RWC;
|
|
|
|
|
hc_control |= OHCI_USB_RESUME;
|
|
|
|
|
sleep_time = 10;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
hc_control &= OHCI_CTRL_RWC;
|
|
|
|
|
hc_control |= OHCI_USB_RESET;
|
|
|
|
|
sleep_time = 50;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, control, hc_control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
msleep(sleep_time);
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
if (!(roothub_a & RH_A_NPS)) { /* power down each port */
|
|
|
|
|
for (temp = 0; temp < num_ports; temp++) {
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi,
|
|
|
|
|
roothub.portstatus[temp], RH_PS_LSDA);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retry:retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_HCR);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
extra:{
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
if (0 != (status & OHCI_HCR)) {
|
|
|
|
|
if (--reset_timeout == 0) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "USB HC reset timed o"
|
|
|
|
|
"ut!\n");
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
msleep(5);
|
|
|
|
|
goto extra;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (quirk & OHCI_QUIRK_INITRESET) {
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, control, hc_control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, ed_controlhead, 0x00000000);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, ed_bulkhead, 0x11000000);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, hcca, 0x00000000);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, fminterval,
|
|
|
|
|
((fminterval & FIT) ^ FIT) | hc_fminterval);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, periodicstart,
|
|
|
|
|
((9 *hc_fminterval) / 10) & 0x3fff);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, periodicstart, &periodicstart);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
|
|
|
|
|
if (!(quirk & OHCI_QUIRK_INITRESET)) {
|
|
|
|
|
quirk |= OHCI_QUIRK_INITRESET;
|
|
|
|
|
goto retry;
|
|
|
|
|
} else
|
|
|
|
|
dev_err(&ftdi->udev->dev, "init err(%08x %04x)\n",
|
|
|
|
|
fminterval, periodicstart);
|
|
|
|
|
} /* start controller operations */
|
|
|
|
|
hc_control &= OHCI_CTRL_RWC;
|
|
|
|
|
hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, control, hc_control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_BLF);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, cmdstatus, &cmdstatus);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_DRWE);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, intrstatus, mask);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, intrdisable,
|
|
|
|
|
OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
|
|
|
|
|
OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
|
|
|
|
|
OHCI_INTR_SO);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval; /* handle root hub init quirks ... */
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
|
|
|
|
|
if (quirk & OHCI_QUIRK_SUPERIO) {
|
|
|
|
|
roothub_a |= RH_A_NOCP;
|
|
|
|
|
roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
} else if ((quirk & OHCI_QUIRK_AMD756) || distrust_firmware) {
|
|
|
|
|
roothub_a |= RH_A_NPS;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_LPSC);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_write_pcimem(ftdi, roothub.b,
|
|
|
|
|
(roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, control, &control);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
mdelay((roothub_a >> 23) & 0x1fe);
|
|
|
|
|
for (temp = 0; temp < num_ports; temp++) {
|
|
|
|
|
u32 portstatus;
|
|
|
|
|
retval = ftdi_read_pcimem(ftdi, roothub.portstatus[temp],
|
|
|
|
|
&portstatus);
|
|
|
|
|
if (retval)
|
|
|
|
|
return retval;
|
|
|
|
|
if (1 & portstatus)
|
|
|
|
|
devices += 1;
|
|
|
|
|
}
|
|
|
|
|
return devices;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_setup_controller(struct usb_ftdi *ftdi, int fn)
|
2006-09-13 06:26:04 -04:00
|
|
|
{
|
|
|
|
|
u32 latence_timer;
|
|
|
|
|
int UxxxStatus;
|
|
|
|
|
u32 pcidata;
|
|
|
|
|
int reg = 0;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
int activePCIfn = fn << 8;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
reg = 16;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
0xFFFFFFFF);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
0xF0000000);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
reg = 12;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&latence_timer);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
latence_timer &= 0xFFFF00FF;
|
|
|
|
|
latence_timer |= 0x00001600;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
|
|
|
|
|
latence_timer);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
reg = 4;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
|
|
|
|
|
0x06);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
for (reg = 0; reg <= 0x54; reg += 4) {
|
|
|
|
|
UxxxStatus = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
}
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_close_controller(struct usb_ftdi *ftdi, int fn)
|
|
|
|
|
{
|
|
|
|
|
u32 latence_timer;
|
|
|
|
|
int UxxxStatus;
|
|
|
|
|
u32 pcidata;
|
|
|
|
|
int reg = 0;
|
|
|
|
|
int activePCIfn = fn << 8;
|
2006-09-13 06:26:04 -04:00
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
reg = 16;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
0xFFFFFFFF);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
0x00000000);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
reg = 12;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&latence_timer);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
latence_timer &= 0xFFFF00FF;
|
|
|
|
|
latence_timer |= 0x00001600;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
|
|
|
|
|
latence_timer);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
reg = 4;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
0x00);
|
2006-09-13 06:26:04 -04:00
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
static int ftdi_elan_found_controller(struct usb_ftdi *ftdi, int fn, int quirk)
|
|
|
|
|
{
|
|
|
|
|
int result;
|
|
|
|
|
int UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_setup_controller(ftdi, fn);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
result = ftdi_elan_check_controller(ftdi, quirk);
|
|
|
|
|
UxxxStatus = ftdi_elan_close_controller(ftdi, fn);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
|
|
|
|
u32 controlreg;
|
|
|
|
|
u8 sensebits;
|
|
|
|
|
int UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000000L);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
msleep(750);
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x100);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x500);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020CL | 0x000);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020DL | 0x000);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
msleep(250);
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020FL | 0x000);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x800);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
msleep(1000);
|
|
|
|
|
sensebits = (controlreg >> 16) & 0x000F;
|
|
|
|
|
if (0x0D == sensebits)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
|
|
|
|
return - ENXIO;
|
|
|
|
|
}
|
|
|
|
|
|
2006-09-13 06:26:04 -04:00
|
|
|
static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi)
|
|
|
|
|
{
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
int UxxxStatus;
|
2006-09-13 06:26:04 -04:00
|
|
|
u32 pcidata;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
int reg = 0;
|
|
|
|
|
u8 fn;
|
|
|
|
|
int activePCIfn = 0;
|
|
|
|
|
int max_devices = 0;
|
|
|
|
|
int controllers = 0;
|
|
|
|
|
int unrecognized = 0;
|
|
|
|
|
ftdi->function = 0;
|
|
|
|
|
for (fn = 0; (fn < 4); fn++) {
|
|
|
|
|
u32 pciVID = 0;
|
|
|
|
|
u32 pciPID = 0;
|
|
|
|
|
int devices = 0;
|
|
|
|
|
activePCIfn = fn << 8;
|
|
|
|
|
UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
|
|
|
|
|
&pcidata);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
pciVID = pcidata & 0xFFFF;
|
|
|
|
|
pciPID = (pcidata >> 16) & 0xFFFF;
|
|
|
|
|
if ((pciVID == PCI_VENDOR_ID_OPTI) && (pciPID == 0xc861)) {
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn, 0);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if ((pciVID == PCI_VENDOR_ID_NEC) && (pciPID == 0x0035))
|
|
|
|
|
{
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn, 0);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if ((pciVID == PCI_VENDOR_ID_AL) && (pciPID == 0x5237)) {
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn, 0);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if ((pciVID == PCI_VENDOR_ID_ATT) && (pciPID == 0x5802))
|
|
|
|
|
{
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn, 0);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if (pciVID == PCI_VENDOR_ID_AMD && pciPID == 0x740c) {
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn,
|
|
|
|
|
OHCI_QUIRK_AMD756);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if (pciVID == PCI_VENDOR_ID_COMPAQ && pciPID == 0xa0f8) {
|
|
|
|
|
devices = ftdi_elan_found_controller(ftdi, fn,
|
|
|
|
|
OHCI_QUIRK_ZFMICRO);
|
|
|
|
|
controllers += 1;
|
|
|
|
|
} else if (0 == pcidata) {
|
|
|
|
|
} else
|
|
|
|
|
unrecognized += 1;
|
|
|
|
|
if (devices > max_devices) {
|
|
|
|
|
max_devices = devices;
|
|
|
|
|
ftdi->function = fn + 1;
|
|
|
|
|
ftdi->platform_data.vendor = pciVID;
|
|
|
|
|
ftdi->platform_data.device = pciPID;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
}
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
if (ftdi->function > 0) {
|
|
|
|
|
UxxxStatus = ftdi_elan_setup_controller(ftdi,
|
|
|
|
|
ftdi->function - 1);
|
|
|
|
|
if (UxxxStatus)
|
|
|
|
|
return UxxxStatus;
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (controllers > 0) {
|
|
|
|
|
return -ENXIO;
|
|
|
|
|
} else if (unrecognized > 0) {
|
|
|
|
|
return -ENXIO;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->enumerated = 0;
|
|
|
|
|
return -ENXIO;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* we use only the first bulk-in and bulk-out endpoints
|
|
|
|
|
*/
|
|
|
|
|
static int ftdi_elan_probe(struct usb_interface *interface,
|
|
|
|
|
const struct usb_device_id *id)
|
|
|
|
|
{
|
|
|
|
|
struct usb_host_interface *iface_desc;
|
|
|
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
|
|
|
size_t buffer_size;
|
|
|
|
|
int i;
|
|
|
|
|
int retval = -ENOMEM;
|
|
|
|
|
struct usb_ftdi *ftdi = kmalloc(sizeof(struct usb_ftdi), GFP_KERNEL);
|
|
|
|
|
if (ftdi == NULL) {
|
|
|
|
|
printk(KERN_ERR "Out of memory\n");
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
memset(ftdi, 0x00, sizeof(struct usb_ftdi));
|
|
|
|
|
down(&ftdi_module_lock);
|
|
|
|
|
list_add_tail(&ftdi->ftdi_list, &ftdi_static_list);
|
|
|
|
|
ftdi->sequence_num = ++ftdi_instances;
|
|
|
|
|
up(&ftdi_module_lock);
|
|
|
|
|
ftdi_elan_init_kref(ftdi);
|
|
|
|
|
init_MUTEX(&ftdi->sw_lock);
|
|
|
|
|
ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
|
|
|
|
|
ftdi->interface = interface;
|
|
|
|
|
init_MUTEX(&ftdi->u132_lock);
|
|
|
|
|
ftdi->expected = 4;
|
|
|
|
|
iface_desc = interface->cur_altsetting;
|
|
|
|
|
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
|
|
|
|
|
endpoint = &iface_desc->endpoint[i].desc;
|
|
|
|
|
if (!ftdi->bulk_in_endpointAddr &&
|
2006-10-26 12:02:50 -04:00
|
|
|
usb_endpoint_is_bulk_in(endpoint)) {
|
2006-09-13 06:26:04 -04:00
|
|
|
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
|
|
|
|
ftdi->bulk_in_size = buffer_size;
|
|
|
|
|
ftdi->bulk_in_endpointAddr = endpoint->bEndpointAddress;
|
|
|
|
|
ftdi->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
|
|
|
|
|
if (!ftdi->bulk_in_buffer) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "Could not allocate b"
|
|
|
|
|
"ulk_in_buffer\n");
|
|
|
|
|
retval = -ENOMEM;
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!ftdi->bulk_out_endpointAddr &&
|
2006-10-26 12:02:50 -04:00
|
|
|
usb_endpoint_is_bulk_out(endpoint)) {
|
2006-09-13 06:26:04 -04:00
|
|
|
ftdi->bulk_out_endpointAddr =
|
|
|
|
|
endpoint->bEndpointAddress;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!(ftdi->bulk_in_endpointAddr && ftdi->bulk_out_endpointAddr)) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "Could not find both bulk-in and bulk"
|
|
|
|
|
"-out endpoints\n");
|
|
|
|
|
retval = -ENODEV;
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
dev_info(&ftdi->udev->dev, "interface %d has I=%02X O=%02X\n",
|
|
|
|
|
iface_desc->desc.bInterfaceNumber, ftdi->bulk_in_endpointAddr,
|
|
|
|
|
ftdi->bulk_out_endpointAddr);
|
|
|
|
|
usb_set_intfdata(interface, ftdi);
|
|
|
|
|
if (iface_desc->desc.bInterfaceNumber == 0 &&
|
|
|
|
|
ftdi->bulk_in_endpointAddr == 0x81 &&
|
|
|
|
|
ftdi->bulk_out_endpointAddr == 0x02) {
|
|
|
|
|
retval = usb_register_dev(interface, &ftdi_elan_jtag_class);
|
|
|
|
|
if (retval) {
|
|
|
|
|
dev_err(&ftdi->udev->dev, "Not able to get a minor for "
|
|
|
|
|
"this device.\n");
|
|
|
|
|
usb_set_intfdata(interface, NULL);
|
|
|
|
|
retval = -ENOMEM;
|
|
|
|
|
goto error;
|
|
|
|
|
} else {
|
|
|
|
|
ftdi->class = &ftdi_elan_jtag_class;
|
|
|
|
|
dev_info(&ftdi->udev->dev, "USB FDTI=%p JTAG interface "
|
|
|
|
|
"%d now attached to ftdi%d\n", ftdi,
|
|
|
|
|
iface_desc->desc.bInterfaceNumber,
|
|
|
|
|
interface->minor);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
} else if (iface_desc->desc.bInterfaceNumber == 1 &&
|
|
|
|
|
ftdi->bulk_in_endpointAddr == 0x83 &&
|
|
|
|
|
ftdi->bulk_out_endpointAddr == 0x04) {
|
|
|
|
|
ftdi->class = NULL;
|
|
|
|
|
dev_info(&ftdi->udev->dev, "USB FDTI=%p ELAN interface %d now a"
|
|
|
|
|
"ctivated\n", ftdi, iface_desc->desc.bInterfaceNumber);
|
2006-11-22 09:57:56 -05:00
|
|
|
INIT_DELAYED_WORK(&ftdi->status_work, ftdi_elan_status_work);
|
|
|
|
|
INIT_DELAYED_WORK(&ftdi->command_work, ftdi_elan_command_work);
|
|
|
|
|
INIT_DELAYED_WORK(&ftdi->respond_work, ftdi_elan_respond_work);
|
2006-09-13 06:26:04 -04:00
|
|
|
ftdi_status_queue_work(ftdi, msecs_to_jiffies(3 *1000));
|
|
|
|
|
return 0;
|
|
|
|
|
} else {
|
|
|
|
|
dev_err(&ftdi->udev->dev,
|
|
|
|
|
"Could not find ELAN's U132 device\n");
|
|
|
|
|
retval = -ENODEV;
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
error:if (ftdi) {
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
}
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ftdi_elan_disconnect(struct usb_interface *interface)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi = usb_get_intfdata(interface);
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
if (ftdi->class) {
|
|
|
|
|
int minor = interface->minor;
|
|
|
|
|
struct usb_class_driver *class = ftdi->class;
|
|
|
|
|
usb_set_intfdata(interface, NULL);
|
|
|
|
|
usb_deregister_dev(interface, class);
|
|
|
|
|
dev_info(&ftdi->udev->dev, "USB FTDI U132 jtag interface on min"
|
|
|
|
|
"or %d now disconnected\n", minor);
|
|
|
|
|
} else {
|
|
|
|
|
ftdi_status_cancel_work(ftdi);
|
|
|
|
|
ftdi_command_cancel_work(ftdi);
|
|
|
|
|
ftdi_response_cancel_work(ftdi);
|
|
|
|
|
ftdi_elan_abandon_completions(ftdi);
|
|
|
|
|
ftdi_elan_abandon_targets(ftdi);
|
|
|
|
|
if (ftdi->registered) {
|
|
|
|
|
platform_device_unregister(&ftdi->platform_dev);
|
|
|
|
|
ftdi->synchronized = 0;
|
|
|
|
|
ftdi->enumerated = 0;
|
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card
ELAN's U132 is a USB to CardBus OHCI controller adapter,
designed specifically for CardBus 3G data cards to
function in machines without a CardBus slot.
The "ftdi-elan" module is a USB client driver, that detects
a supported CardBus OHCI controller plugged into the
U132 adapter and thereafter provides the conduit for
for access by the "u132-hcd" module.
The "u132-hcd" module is a (cut-down OHCI) host controller
that supports a single OHCI function of the CardBus
card inserted into the U132 adapter.
The problem with the initial implementation is that when
the CardBus card inserted into the U132 adapter has multiple
functions (and a CardBus card can support up to 4 functions),
it was the first function that was arbitrarily choosen.
The first batch of 3G cards tested, like the Merlin Qualcomm
V620, have two functions each supporting a seperate USB OHCI
host controller, of which it was that first function that is
wired up to the 3G modem.
Then along comes the Vodafone Mobile Connect 3G/GPRS data card,
aka "Option GT 3G Quad" as printed on it's rear or "Option N.V.
GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it
has the meaningful functionality in the second CardBus function.
That presents a problem because it was the "ftdi-elan" module
alone that knows how to communicate to the embedded CardBus slot
and the "u132-hcd" module alone that knows how to access the
pcmcia configuration and CardBus accessible memory space. And
of course, the information about attached (internally hardwired)
devices is contained within USB configuration embedded somewhere
within the CardBus card.
If only the "u132-hcd" module probe() interface could return a
result code that propagated back to the instigating function
platform_device_register() then the "ftdi-elan" module could
try an alternative CardBus function. However in spite of
the recent changes to the drivers/base/ routines that moved
device_attach() from bus_add_device() to bus_attach_device()
both of those routines lose the "failed to attach" 0 result
code and thus the calling routine, namely device_add() is
incapable of propaging the "failed to attach" condition back
to platform_device_add() and consequently back to the caller
of platform_device_register()
Experiments show that patching bus_attach_device() to return
ENODEV fails with the kernel locking up very early during
boot. But, however, if the patch is restricted to calls from
platform_device_add() then it does seem to work.
Unfortunately, until the kernel's drivers/base is properly
modified to propagate -ENODEV back to the caller of
platform_device_register(), it is necessary to "fix" the
"ftdi-elan" module by importing knowledge from the
"u132-hcd" module. This is the reason for the duplicated
functionality introduced in this patch.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 08:16:22 -05:00
|
|
|
ftdi->initialized = 0;
|
2006-09-13 06:26:04 -04:00
|
|
|
ftdi->registered = 0;
|
|
|
|
|
}
|
|
|
|
|
flush_workqueue(status_queue);
|
|
|
|
|
flush_workqueue(command_queue);
|
|
|
|
|
flush_workqueue(respond_queue);
|
|
|
|
|
ftdi->disconnected += 1;
|
|
|
|
|
usb_set_intfdata(interface, NULL);
|
|
|
|
|
dev_info(&ftdi->udev->dev, "USB FTDI U132 host controller inter"
|
|
|
|
|
"face now disconnected\n");
|
|
|
|
|
}
|
|
|
|
|
ftdi_elan_put_kref(ftdi);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct usb_driver ftdi_elan_driver = {
|
|
|
|
|
.name = "ftdi-elan",
|
|
|
|
|
.probe = ftdi_elan_probe,
|
|
|
|
|
.disconnect = ftdi_elan_disconnect,
|
|
|
|
|
.id_table = ftdi_elan_table,
|
|
|
|
|
};
|
|
|
|
|
static int __init ftdi_elan_init(void)
|
|
|
|
|
{
|
|
|
|
|
int result;
|
|
|
|
|
printk(KERN_INFO "driver %s built at %s on %s\n", ftdi_elan_driver.name,
|
2007-03-06 05:47:44 -05:00
|
|
|
__TIME__, __DATE__);
|
2006-09-13 06:26:04 -04:00
|
|
|
init_MUTEX(&ftdi_module_lock);
|
|
|
|
|
INIT_LIST_HEAD(&ftdi_static_list);
|
|
|
|
|
status_queue = create_singlethread_workqueue("ftdi-status-control");
|
2007-03-06 05:47:44 -05:00
|
|
|
if (!status_queue)
|
2007-04-26 03:38:00 -04:00
|
|
|
goto err_status_queue;
|
2006-09-13 06:26:04 -04:00
|
|
|
command_queue = create_singlethread_workqueue("ftdi-command-engine");
|
2007-03-06 05:47:44 -05:00
|
|
|
if (!command_queue)
|
2007-04-26 03:38:00 -04:00
|
|
|
goto err_command_queue;
|
2006-09-13 06:26:04 -04:00
|
|
|
respond_queue = create_singlethread_workqueue("ftdi-respond-engine");
|
2007-03-06 05:47:44 -05:00
|
|
|
if (!respond_queue)
|
2007-04-26 03:38:00 -04:00
|
|
|
goto err_respond_queue;
|
2006-09-13 06:26:04 -04:00
|
|
|
result = usb_register(&ftdi_elan_driver);
|
2007-04-26 03:38:00 -04:00
|
|
|
if (result) {
|
|
|
|
|
destroy_workqueue(status_queue);
|
|
|
|
|
destroy_workqueue(command_queue);
|
|
|
|
|
destroy_workqueue(respond_queue);
|
2006-09-13 06:26:04 -04:00
|
|
|
printk(KERN_ERR "usb_register failed. Error number %d\n",
|
2007-03-06 05:47:44 -05:00
|
|
|
result);
|
2007-04-26 03:38:00 -04:00
|
|
|
}
|
2006-09-13 06:26:04 -04:00
|
|
|
return result;
|
2007-03-06 05:47:44 -05:00
|
|
|
|
2007-04-26 03:38:00 -04:00
|
|
|
err_respond_queue:
|
2007-03-06 05:47:44 -05:00
|
|
|
destroy_workqueue(command_queue);
|
2007-04-26 03:38:00 -04:00
|
|
|
err_command_queue:
|
2007-03-06 05:47:44 -05:00
|
|
|
destroy_workqueue(status_queue);
|
2007-04-26 03:38:00 -04:00
|
|
|
err_status_queue:
|
2007-03-06 05:47:44 -05:00
|
|
|
printk(KERN_ERR "%s couldn't create workqueue\n", ftdi_elan_driver.name);
|
|
|
|
|
return -ENOMEM;
|
2006-09-13 06:26:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void __exit ftdi_elan_exit(void)
|
|
|
|
|
{
|
|
|
|
|
struct usb_ftdi *ftdi;
|
|
|
|
|
struct usb_ftdi *temp;
|
|
|
|
|
usb_deregister(&ftdi_elan_driver);
|
|
|
|
|
printk(KERN_INFO "ftdi_u132 driver deregistered\n");
|
|
|
|
|
list_for_each_entry_safe(ftdi, temp, &ftdi_static_list, ftdi_list) {
|
|
|
|
|
ftdi_status_cancel_work(ftdi);
|
|
|
|
|
ftdi_command_cancel_work(ftdi);
|
|
|
|
|
ftdi_response_cancel_work(ftdi);
|
|
|
|
|
} flush_workqueue(status_queue);
|
|
|
|
|
destroy_workqueue(status_queue);
|
|
|
|
|
status_queue = NULL;
|
|
|
|
|
flush_workqueue(command_queue);
|
|
|
|
|
destroy_workqueue(command_queue);
|
|
|
|
|
command_queue = NULL;
|
|
|
|
|
flush_workqueue(respond_queue);
|
|
|
|
|
destroy_workqueue(respond_queue);
|
|
|
|
|
respond_queue = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
module_init(ftdi_elan_init);
|
|
|
|
|
module_exit(ftdi_elan_exit);
|
