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android_kernel_xiaomi_sm8350/drivers/usb/atm/ueagle-atm.c
Rusty Russell d6d1b650ae param: simple locking for sysfs-writable charp parameters 
Since the writing to sysfs can free the old one, we need to block that
when we access the charp variables.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Jing Huang <huangj@brocade.com>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: libertas-dev@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-usb@vger.kernel.org
2010-08-11 23:04:31 +09:30

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/*-
* Copyright (c) 2003, 2004
* Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
*
* Copyright (c) 2005-2007 Matthieu Castet <castet.matthieu@free.fr>
* Copyright (c) 2005-2007 Stanislaw Gruszka <stf_xl@wp.pl>
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* GPL license :
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
* Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
*
* The rest of the code was was rewritten from scratch.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/ctype.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <asm/unaligned.h>
#include "usbatm.h"
#define EAGLEUSBVERSION "ueagle 1.4"
/*
* Debug macros
*/
#define uea_dbg(usb_dev, format, args...) \
do { \
if (debug >= 1) \
dev_dbg(&(usb_dev)->dev, \
"[ueagle-atm dbg] %s: " format, \
__func__, ##args); \
} while (0)
#define uea_vdbg(usb_dev, format, args...) \
do { \
if (debug >= 2) \
dev_dbg(&(usb_dev)->dev, \
"[ueagle-atm vdbg] " format, ##args); \
} while (0)
#define uea_enters(usb_dev) \
uea_vdbg(usb_dev, "entering %s\n" , __func__)
#define uea_leaves(usb_dev) \
uea_vdbg(usb_dev, "leaving %s\n" , __func__)
#define uea_err(usb_dev, format, args...) \
dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)
#define uea_warn(usb_dev, format, args...) \
dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)
#define uea_info(usb_dev, format, args...) \
dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)
struct intr_pkt;
/* cmv's from firmware */
struct uea_cmvs_v1 {
u32 address;
u16 offset;
u32 data;
} __attribute__ ((packed));
struct uea_cmvs_v2 {
u32 group;
u32 address;
u32 offset;
u32 data;
} __attribute__ ((packed));
/* information about currently processed cmv */
struct cmv_dsc_e1 {
u8 function;
u16 idx;
u32 address;
u16 offset;
};
struct cmv_dsc_e4 {
u16 function;
u16 offset;
u16 address;
u16 group;
};
union cmv_dsc {
struct cmv_dsc_e1 e1;
struct cmv_dsc_e4 e4;
};
struct uea_softc {
struct usb_device *usb_dev;
struct usbatm_data *usbatm;
int modem_index;
unsigned int driver_info;
int annex;
#define ANNEXA 0
#define ANNEXB 1
int booting;
int reset;
wait_queue_head_t sync_q;
struct task_struct *kthread;
u32 data;
u32 data1;
int cmv_ack;
union cmv_dsc cmv_dsc;
struct work_struct task;
struct workqueue_struct *work_q;
u16 pageno;
u16 ovl;
const struct firmware *dsp_firm;
struct urb *urb_int;
void (*dispatch_cmv) (struct uea_softc *, struct intr_pkt *);
void (*schedule_load_page) (struct uea_softc *, struct intr_pkt *);
int (*stat) (struct uea_softc *);
int (*send_cmvs) (struct uea_softc *);
/* keep in sync with eaglectl */
struct uea_stats {
struct {
u32 state;
u32 flags;
u32 mflags;
u32 vidcpe;
u32 vidco;
u32 dsrate;
u32 usrate;
u32 dsunc;
u32 usunc;
u32 dscorr;
u32 uscorr;
u32 txflow;
u32 rxflow;
u32 usattenuation;
u32 dsattenuation;
u32 dsmargin;
u32 usmargin;
u32 firmid;
} phy;
} stats;
};
/*
* Elsa IDs
*/
#define ELSA_VID 0x05CC
#define ELSA_PID_PSTFIRM 0x3350
#define ELSA_PID_PREFIRM 0x3351
#define ELSA_PID_A_PREFIRM 0x3352
#define ELSA_PID_A_PSTFIRM 0x3353
#define ELSA_PID_B_PREFIRM 0x3362
#define ELSA_PID_B_PSTFIRM 0x3363
/*
* Devolo IDs : pots if (pid & 0x10)
*/
#define DEVOLO_VID 0x1039
#define DEVOLO_EAGLE_I_A_PID_PSTFIRM 0x2110
#define DEVOLO_EAGLE_I_A_PID_PREFIRM 0x2111
#define DEVOLO_EAGLE_I_B_PID_PSTFIRM 0x2100
#define DEVOLO_EAGLE_I_B_PID_PREFIRM 0x2101
#define DEVOLO_EAGLE_II_A_PID_PSTFIRM 0x2130
#define DEVOLO_EAGLE_II_A_PID_PREFIRM 0x2131
#define DEVOLO_EAGLE_II_B_PID_PSTFIRM 0x2120
#define DEVOLO_EAGLE_II_B_PID_PREFIRM 0x2121
/*
* Reference design USB IDs
*/
#define ANALOG_VID 0x1110
#define ADI930_PID_PREFIRM 0x9001
#define ADI930_PID_PSTFIRM 0x9000
#define EAGLE_I_PID_PREFIRM 0x9010 /* Eagle I */
#define EAGLE_I_PID_PSTFIRM 0x900F /* Eagle I */
#define EAGLE_IIC_PID_PREFIRM 0x9024 /* Eagle IIC */
#define EAGLE_IIC_PID_PSTFIRM 0x9023 /* Eagle IIC */
#define EAGLE_II_PID_PREFIRM 0x9022 /* Eagle II */
#define EAGLE_II_PID_PSTFIRM 0x9021 /* Eagle II */
#define EAGLE_III_PID_PREFIRM 0x9032 /* Eagle III */
#define EAGLE_III_PID_PSTFIRM 0x9031 /* Eagle III */
#define EAGLE_IV_PID_PREFIRM 0x9042 /* Eagle IV */
#define EAGLE_IV_PID_PSTFIRM 0x9041 /* Eagle IV */
/*
* USR USB IDs
*/
#define USR_VID 0x0BAF
#define MILLER_A_PID_PREFIRM 0x00F2
#define MILLER_A_PID_PSTFIRM 0x00F1
#define MILLER_B_PID_PREFIRM 0x00FA
#define MILLER_B_PID_PSTFIRM 0x00F9
#define HEINEKEN_A_PID_PREFIRM 0x00F6
#define HEINEKEN_A_PID_PSTFIRM 0x00F5
#define HEINEKEN_B_PID_PREFIRM 0x00F8
#define HEINEKEN_B_PID_PSTFIRM 0x00F7
#define PREFIRM 0
#define PSTFIRM (1<<7)
#define AUTO_ANNEX_A (1<<8)
#define AUTO_ANNEX_B (1<<9)
enum {
ADI930 = 0,
EAGLE_I,
EAGLE_II,
EAGLE_III,
EAGLE_IV
};
/* macros for both struct usb_device_id and struct uea_softc */
#define UEA_IS_PREFIRM(x) \
(!((x)->driver_info & PSTFIRM))
#define UEA_CHIP_VERSION(x) \
((x)->driver_info & 0xf)
#define IS_ISDN(x) \
((x)->annex & ANNEXB)
#define INS_TO_USBDEV(ins) (ins->usb_dev)
#define GET_STATUS(data) \
((data >> 8) & 0xf)
#define IS_OPERATIONAL(sc) \
((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
(GET_STATUS(sc->stats.phy.state) == 2) : \
(sc->stats.phy.state == 7))
/*
* Set of macros to handle unaligned data in the firmware blob.
* The FW_GET_BYTE() macro is provided only for consistency.
*/
#define FW_GET_BYTE(p) (*((__u8 *) (p)))
#define FW_DIR "ueagle-atm/"
#define UEA_FW_NAME_MAX 30
#define NB_MODEM 4
#define BULK_TIMEOUT 300
#define CTRL_TIMEOUT 1000
#define ACK_TIMEOUT msecs_to_jiffies(3000)
#define UEA_INTR_IFACE_NO 0
#define UEA_US_IFACE_NO 1
#define UEA_DS_IFACE_NO 2
#define FASTEST_ISO_INTF 8
#define UEA_BULK_DATA_PIPE 0x02
#define UEA_IDMA_PIPE 0x04
#define UEA_INTR_PIPE 0x04
#define UEA_ISO_DATA_PIPE 0x08
#define UEA_E1_SET_BLOCK 0x0001
#define UEA_E4_SET_BLOCK 0x002c
#define UEA_SET_MODE 0x0003
#define UEA_SET_2183_DATA 0x0004
#define UEA_SET_TIMEOUT 0x0011
#define UEA_LOOPBACK_OFF 0x0002
#define UEA_LOOPBACK_ON 0x0003
#define UEA_BOOT_IDMA 0x0006
#define UEA_START_RESET 0x0007
#define UEA_END_RESET 0x0008
#define UEA_SWAP_MAILBOX (0x3fcd | 0x4000)
#define UEA_MPTX_START (0x3fce | 0x4000)
#define UEA_MPTX_MAILBOX (0x3fd6 | 0x4000)
#define UEA_MPRX_MAILBOX (0x3fdf | 0x4000)
/* block information in eagle4 dsp firmware */
struct block_index {
__le32 PageOffset;
__le32 NotLastBlock;
__le32 dummy;
__le32 PageSize;
__le32 PageAddress;
__le16 dummy1;
__le16 PageNumber;
} __attribute__ ((packed));
#define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
#define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)
#define E4_L1_STRING_HEADER 0x10
#define E4_MAX_PAGE_NUMBER 0x58
#define E4_NO_SWAPPAGE_HEADERS 0x31
/* l1_code is eagle4 dsp firmware format */
struct l1_code {
u8 string_header[E4_L1_STRING_HEADER];
u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
u8 code[0];
} __attribute__ ((packed));
/* structures describing a block within a DSP page */
struct block_info_e1 {
__le16 wHdr;
__le16 wAddress;
__le16 wSize;
__le16 wOvlOffset;
__le16 wOvl; /* overlay */
__le16 wLast;
} __attribute__ ((packed));
#define E1_BLOCK_INFO_SIZE 12
struct block_info_e4 {
__be16 wHdr;
__u8 bBootPage;
__u8 bPageNumber;
__be32 dwSize;
__be32 dwAddress;
__be16 wReserved;
} __attribute__ ((packed));
#define E4_BLOCK_INFO_SIZE 14
#define UEA_BIHDR 0xabcd
#define UEA_RESERVED 0xffff
/* constants describing cmv type */
#define E1_PREAMBLE 0x535c
#define E1_MODEMTOHOST 0x01
#define E1_HOSTTOMODEM 0x10
#define E1_MEMACCESS 0x1
#define E1_ADSLDIRECTIVE 0x7
#define E1_FUNCTION_TYPE(f) ((f) >> 4)
#define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)
#define E4_MEMACCESS 0
#define E4_ADSLDIRECTIVE 0xf
#define E4_FUNCTION_TYPE(f) ((f) >> 8)
#define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
#define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)
/* for MEMACCESS */
#define E1_REQUESTREAD 0x0
#define E1_REQUESTWRITE 0x1
#define E1_REPLYREAD 0x2
#define E1_REPLYWRITE 0x3
#define E4_REQUESTREAD 0x0
#define E4_REQUESTWRITE 0x4
#define E4_REPLYREAD (E4_REQUESTREAD | 1)
#define E4_REPLYWRITE (E4_REQUESTWRITE | 1)
/* for ADSLDIRECTIVE */
#define E1_KERNELREADY 0x0
#define E1_MODEMREADY 0x1
#define E4_KERNELREADY 0x0
#define E4_MODEMREADY 0x1
#define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
((st) & 0xf) << 4 | ((s) & 0xf))
#define E1_MAKESA(a, b, c, d) \
(((c) & 0xff) << 24 | \
((d) & 0xff) << 16 | \
((a) & 0xff) << 8 | \
((b) & 0xff))
#define E1_GETSA1(a) ((a >> 8) & 0xff)
#define E1_GETSA2(a) (a & 0xff)
#define E1_GETSA3(a) ((a >> 24) & 0xff)
#define E1_GETSA4(a) ((a >> 16) & 0xff)
#define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
#define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
#define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
#define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
#define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
#define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')
#define E4_SA_CNTL 1
#define E4_SA_STAT 2
#define E4_SA_INFO 3
#define E4_SA_TEST 4
#define E4_SA_OPTN 5
#define E4_SA_RATE 6
#define E4_SA_DIAG 7
#define E4_SA_CNFG 8
/* structures representing a CMV (Configuration and Management Variable) */
struct cmv_e1 {
__le16 wPreamble;
__u8 bDirection;
__u8 bFunction;
__le16 wIndex;
__le32 dwSymbolicAddress;
__le16 wOffsetAddress;
__le32 dwData;
} __attribute__ ((packed));
struct cmv_e4 {
__be16 wGroup;
__be16 wFunction;
__be16 wOffset;
__be16 wAddress;
__be32 dwData[6];
} __attribute__ ((packed));
/* structures representing swap information */
struct swap_info_e1 {
__u8 bSwapPageNo;
__u8 bOvl; /* overlay */
} __attribute__ ((packed));
struct swap_info_e4 {
__u8 bSwapPageNo;
} __attribute__ ((packed));
/* structures representing interrupt data */
#define e1_bSwapPageNo u.e1.s1.swapinfo.bSwapPageNo
#define e1_bOvl u.e1.s1.swapinfo.bOvl
#define e4_bSwapPageNo u.e4.s1.swapinfo.bSwapPageNo
#define INT_LOADSWAPPAGE 0x0001
#define INT_INCOMINGCMV 0x0002
union intr_data_e1 {
struct {
struct swap_info_e1 swapinfo;
__le16 wDataSize;
} __attribute__ ((packed)) s1;
struct {
struct cmv_e1 cmv;
__le16 wDataSize;
} __attribute__ ((packed)) s2;
} __attribute__ ((packed));
union intr_data_e4 {
struct {
struct swap_info_e4 swapinfo;
__le16 wDataSize;
} __attribute__ ((packed)) s1;
struct {
struct cmv_e4 cmv;
__le16 wDataSize;
} __attribute__ ((packed)) s2;
} __attribute__ ((packed));
struct intr_pkt {
__u8 bType;
__u8 bNotification;
__le16 wValue;
__le16 wIndex;
__le16 wLength;
__le16 wInterrupt;
union {
union intr_data_e1 e1;
union intr_data_e4 e4;
} u;
} __attribute__ ((packed));
#define E1_INTR_PKT_SIZE 28
#define E4_INTR_PKT_SIZE 64
static struct usb_driver uea_driver;
static DEFINE_MUTEX(uea_mutex);
static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III",
"Eagle IV"};
static int modem_index;
static unsigned int debug;
static unsigned int altsetting[NB_MODEM] = {
[0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
static int sync_wait[NB_MODEM];
static char *cmv_file[NB_MODEM];
static int annex[NB_MODEM];
module_param(debug, uint, 0644);
MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
module_param_array(altsetting, uint, NULL, 0644);
MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
"1=isoc slowest, ... , 8=isoc fastest (default)");
module_param_array(sync_wait, bool, NULL, 0644);
MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
module_param_array(cmv_file, charp, NULL, 0644);
MODULE_PARM_DESC(cmv_file,
"file name with configuration and management variables");
module_param_array(annex, uint, NULL, 0644);
MODULE_PARM_DESC(annex,
"manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
#define uea_wait(sc, cond, timeo) \
({ \
int _r = wait_event_interruptible_timeout(sc->sync_q, \
(cond) || kthread_should_stop(), timeo); \
if (kthread_should_stop()) \
_r = -ENODEV; \
_r; \
})
#define UPDATE_ATM_STAT(type, val) \
do { \
if (sc->usbatm->atm_dev) \
sc->usbatm->atm_dev->type = val; \
} while (0)
#define UPDATE_ATM_SIGNAL(val) \
do { \
if (sc->usbatm->atm_dev) \
atm_dev_signal_change(sc->usbatm->atm_dev, val); \
} while (0)
/* Firmware loading */
#define LOAD_INTERNAL 0xA0
#define F8051_USBCS 0x7f92
/**
* uea_send_modem_cmd - Send a command for pre-firmware devices.
*/
static int uea_send_modem_cmd(struct usb_device *usb,
u16 addr, u16 size, const u8 *buff)
{
int ret = -ENOMEM;
u8 *xfer_buff;
xfer_buff = kmemdup(buff, size, GFP_KERNEL);
if (xfer_buff) {
ret = usb_control_msg(usb,
usb_sndctrlpipe(usb, 0),
LOAD_INTERNAL,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, addr, 0, xfer_buff,
size, CTRL_TIMEOUT);
kfree(xfer_buff);
}
if (ret < 0)
return ret;
return (ret == size) ? 0 : -EIO;
}
static void uea_upload_pre_firmware(const struct firmware *fw_entry,
void *context)
{
struct usb_device *usb = context;
const u8 *pfw;
u8 value;
u32 crc = 0;
int ret, size;
uea_enters(usb);
if (!fw_entry) {
uea_err(usb, "firmware is not available\n");
goto err;
}
pfw = fw_entry->data;
size = fw_entry->size;
if (size < 4)
goto err_fw_corrupted;
crc = get_unaligned_le32(pfw);
pfw += 4;
size -= 4;
if (crc32_be(0, pfw, size) != crc)
goto err_fw_corrupted;
/*
* Start to upload firmware : send reset
*/
value = 1;
ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
if (ret < 0) {
uea_err(usb, "modem reset failed with error %d\n", ret);
goto err;
}
while (size > 3) {
u8 len = FW_GET_BYTE(pfw);
u16 add = get_unaligned_le16(pfw + 1);
size -= len + 3;
if (size < 0)
goto err_fw_corrupted;
ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
if (ret < 0) {
uea_err(usb, "uploading firmware data failed "
"with error %d\n", ret);
goto err;
}
pfw += len + 3;
}
if (size != 0)
goto err_fw_corrupted;
/*
* Tell the modem we finish : de-assert reset
*/
value = 0;
ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
if (ret < 0)
uea_err(usb, "modem de-assert failed with error %d\n", ret);
else
uea_info(usb, "firmware uploaded\n");
goto err;
err_fw_corrupted:
uea_err(usb, "firmware is corrupted\n");
err:
release_firmware(fw_entry);
uea_leaves(usb);
}
/**
* uea_load_firmware - Load usb firmware for pre-firmware devices.
*/
static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
{
int ret;
char *fw_name = FW_DIR "eagle.fw";
uea_enters(usb);
uea_info(usb, "pre-firmware device, uploading firmware\n");
switch (ver) {
case ADI930:
fw_name = FW_DIR "adi930.fw";
break;
case EAGLE_I:
fw_name = FW_DIR "eagleI.fw";
break;
case EAGLE_II:
fw_name = FW_DIR "eagleII.fw";
break;
case EAGLE_III:
fw_name = FW_DIR "eagleIII.fw";
break;
case EAGLE_IV:
fw_name = FW_DIR "eagleIV.fw";
break;
}
ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
GFP_KERNEL, usb,
uea_upload_pre_firmware);
if (ret)
uea_err(usb, "firmware %s is not available\n", fw_name);
else
uea_info(usb, "loading firmware %s\n", fw_name);
uea_leaves(usb);
return ret;
}
/* modem management : dsp firmware, send/read CMV, monitoring statistic
*/
/*
* Make sure that the DSP code provided is safe to use.
*/
static int check_dsp_e1(const u8 *dsp, unsigned int len)
{
u8 pagecount, blockcount;
u16 blocksize;
u32 pageoffset;
unsigned int i, j, p, pp;
pagecount = FW_GET_BYTE(dsp);
p = 1;
/* enough space for page offsets? */
if (p + 4 * pagecount > len)
return 1;
for (i = 0; i < pagecount; i++) {
pageoffset = get_unaligned_le32(dsp + p);
p += 4;
if (pageoffset == 0)
continue;
/* enough space for blockcount? */
if (pageoffset >= len)
return 1;
pp = pageoffset;
blockcount = FW_GET_BYTE(dsp + pp);
pp += 1;
for (j = 0; j < blockcount; j++) {
/* enough space for block header? */
if (pp + 4 > len)
return 1;
pp += 2; /* skip blockaddr */
blocksize = get_unaligned_le16(dsp + pp);
pp += 2;
/* enough space for block data? */
if (pp + blocksize > len)
return 1;
pp += blocksize;
}
}
return 0;
}
static int check_dsp_e4(const u8 *dsp, int len)
{
int i;
struct l1_code *p = (struct l1_code *) dsp;
unsigned int sum = p->code - dsp;
if (len < sum)
return 1;
if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
strcmp("STRATIPHY ANEXB", p->string_header) != 0)
return 1;
for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
struct block_index *blockidx;
u8 blockno = p->page_number_to_block_index[i];
if (blockno >= E4_NO_SWAPPAGE_HEADERS)
continue;
do {
u64 l;
if (blockno >= E4_NO_SWAPPAGE_HEADERS)
return 1;
blockidx = &p->page_header[blockno++];
if ((u8 *)(blockidx + 1) - dsp >= len)
return 1;
if (le16_to_cpu(blockidx->PageNumber) != i)
return 1;
l = E4_PAGE_BYTES(blockidx->PageSize);
sum += l;
l += le32_to_cpu(blockidx->PageOffset);
if (l > len)
return 1;
/* zero is zero regardless endianes */
} while (blockidx->NotLastBlock);
}
return (sum == len) ? 0 : 1;
}
/*
* send data to the idma pipe
* */
static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
{
int ret = -ENOMEM;
u8 *xfer_buff;
int bytes_read;
xfer_buff = kmemdup(data, size, GFP_KERNEL);
if (!xfer_buff) {
uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
return ret;
}
ret = usb_bulk_msg(sc->usb_dev,
usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
xfer_buff, size, &bytes_read, BULK_TIMEOUT);
kfree(xfer_buff);
if (ret < 0)
return ret;
if (size != bytes_read) {
uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
bytes_read);
return -EIO;
}
return 0;
}
static int request_dsp(struct uea_softc *sc)
{
int ret;
char *dsp_name;
if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
if (IS_ISDN(sc))
dsp_name = FW_DIR "DSP4i.bin";
else
dsp_name = FW_DIR "DSP4p.bin";
} else if (UEA_CHIP_VERSION(sc) == ADI930) {
if (IS_ISDN(sc))
dsp_name = FW_DIR "DSP9i.bin";
else
dsp_name = FW_DIR "DSP9p.bin";
} else {
if (IS_ISDN(sc))
dsp_name = FW_DIR "DSPei.bin";
else
dsp_name = FW_DIR "DSPep.bin";
}
ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"requesting firmware %s failed with error %d\n",
dsp_name, ret);
return ret;
}
if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
else
ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);
if (ret) {
uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
dsp_name);
release_firmware(sc->dsp_firm);
sc->dsp_firm = NULL;
return -EILSEQ;
}
return 0;
}
/*
* The uea_load_page() function must be called within a process context
*/
static void uea_load_page_e1(struct work_struct *work)
{
struct uea_softc *sc = container_of(work, struct uea_softc, task);
u16 pageno = sc->pageno;
u16 ovl = sc->ovl;
struct block_info_e1 bi;
const u8 *p;
u8 pagecount, blockcount;
u16 blockaddr, blocksize;
u32 pageoffset;
int i;
/* reload firmware when reboot start and it's loaded already */
if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
release_firmware(sc->dsp_firm);
sc->dsp_firm = NULL;
}
if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
return;
p = sc->dsp_firm->data;
pagecount = FW_GET_BYTE(p);
p += 1;
if (pageno >= pagecount)
goto bad1;
p += 4 * pageno;
pageoffset = get_unaligned_le32(p);
if (pageoffset == 0)
goto bad1;
p = sc->dsp_firm->data + pageoffset;
blockcount = FW_GET_BYTE(p);
p += 1;
uea_dbg(INS_TO_USBDEV(sc),
"sending %u blocks for DSP page %u\n", blockcount, pageno);
bi.wHdr = cpu_to_le16(UEA_BIHDR);
bi.wOvl = cpu_to_le16(ovl);
bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
for (i = 0; i < blockcount; i++) {
blockaddr = get_unaligned_le16(p);
p += 2;
blocksize = get_unaligned_le16(p);
p += 2;
bi.wSize = cpu_to_le16(blocksize);
bi.wAddress = cpu_to_le16(blockaddr);
bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
/* send block info through the IDMA pipe */
if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
goto bad2;
/* send block data through the IDMA pipe */
if (uea_idma_write(sc, p, blocksize))
goto bad2;
p += blocksize;
}
return;
bad2:
uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
return;
bad1:
uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
}
static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
{
struct block_info_e4 bi;
struct block_index *blockidx;
struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
u8 blockno = p->page_number_to_block_index[pageno];
bi.wHdr = cpu_to_be16(UEA_BIHDR);
bi.bBootPage = boot;
bi.bPageNumber = pageno;
bi.wReserved = cpu_to_be16(UEA_RESERVED);
do {
const u8 *blockoffset;
unsigned int blocksize;
blockidx = &p->page_header[blockno];
blocksize = E4_PAGE_BYTES(blockidx->PageSize);
blockoffset = sc->dsp_firm->data + le32_to_cpu(
blockidx->PageOffset);
bi.dwSize = cpu_to_be32(blocksize);
bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));
uea_dbg(INS_TO_USBDEV(sc),
"sending block %u for DSP page "
"%u size %u address %x\n",
blockno, pageno, blocksize,
le32_to_cpu(blockidx->PageAddress));
/* send block info through the IDMA pipe */
if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
goto bad;
/* send block data through the IDMA pipe */
if (uea_idma_write(sc, blockoffset, blocksize))
goto bad;
blockno++;
} while (blockidx->NotLastBlock);
return;
bad:
uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
return;
}
static void uea_load_page_e4(struct work_struct *work)
{
struct uea_softc *sc = container_of(work, struct uea_softc, task);
u8 pageno = sc->pageno;
int i;
struct block_info_e4 bi;
struct l1_code *p;
uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
/* reload firmware when reboot start and it's loaded already */
if (pageno == 0 && sc->dsp_firm) {
release_firmware(sc->dsp_firm);
sc->dsp_firm = NULL;
}
if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
return;
p = (struct l1_code *) sc->dsp_firm->data;
if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
uea_err(INS_TO_USBDEV(sc), "invalid DSP "
"page %u requested\n", pageno);
return;
}
if (pageno != 0) {
__uea_load_page_e4(sc, pageno, 0);
return;
}
uea_dbg(INS_TO_USBDEV(sc),
"sending Main DSP page %u\n", p->page_header[0].PageNumber);
for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
__uea_load_page_e4(sc, i, 1);
}
uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");
bi.wHdr = cpu_to_be16(UEA_BIHDR);
bi.bBootPage = 0;
bi.bPageNumber = 0xff;
bi.wReserved = cpu_to_be16(UEA_RESERVED);
bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
bi.dwAddress = cpu_to_be32(le32_to_cpu(p->page_header[0].PageAddress));
/* send block info through the IDMA pipe */
if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
}
static inline void wake_up_cmv_ack(struct uea_softc *sc)
{
BUG_ON(sc->cmv_ack);
sc->cmv_ack = 1;
wake_up(&sc->sync_q);
}
static inline int wait_cmv_ack(struct uea_softc *sc)
{
int ret = uea_wait(sc, sc->cmv_ack , ACK_TIMEOUT);
sc->cmv_ack = 0;
uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
jiffies_to_msecs(ret));
if (ret < 0)
return ret;
return (ret == 0) ? -ETIMEDOUT : 0;
}
#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
static int uea_request(struct uea_softc *sc,
u16 value, u16 index, u16 size, const void *data)
{
u8 *xfer_buff;
int ret = -ENOMEM;
xfer_buff = kmemdup(data, size, GFP_KERNEL);
if (!xfer_buff) {
uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
return ret;
}
ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
UCDC_SEND_ENCAPSULATED_COMMAND,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
value, index, xfer_buff, size, CTRL_TIMEOUT);
kfree(xfer_buff);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
return ret;
}
if (ret != size) {
uea_err(INS_TO_USBDEV(sc),
"usb_control_msg send only %d bytes (instead of %d)\n",
ret, size);
return -EIO;
}
return 0;
}
static int uea_cmv_e1(struct uea_softc *sc,
u8 function, u32 address, u16 offset, u32 data)
{
struct cmv_e1 cmv;
int ret;
uea_enters(INS_TO_USBDEV(sc));
uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
"offset : 0x%04x, data : 0x%08x\n",
E1_FUNCTION_TYPE(function),
E1_FUNCTION_SUBTYPE(function),
E1_GETSA1(address), E1_GETSA2(address),
E1_GETSA3(address),
E1_GETSA4(address), offset, data);
/* we send a request, but we expect a reply */
sc->cmv_dsc.e1.function = function | 0x2;
sc->cmv_dsc.e1.idx++;
sc->cmv_dsc.e1.address = address;
sc->cmv_dsc.e1.offset = offset;
cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
cmv.bDirection = E1_HOSTTOMODEM;
cmv.bFunction = function;
cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
put_unaligned_le32(address, &cmv.dwSymbolicAddress);
cmv.wOffsetAddress = cpu_to_le16(offset);
put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);
ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
sizeof(cmv), &cmv);
if (ret < 0)
return ret;
ret = wait_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return ret;
}
static int uea_cmv_e4(struct uea_softc *sc,
u16 function, u16 group, u16 address, u16 offset, u32 data)
{
struct cmv_e4 cmv;
int ret;
uea_enters(INS_TO_USBDEV(sc));
memset(&cmv, 0, sizeof(cmv));
uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
"Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
group, address, offset, data);
/* we send a request, but we expect a reply */
sc->cmv_dsc.e4.function = function | (0x1 << 4);
sc->cmv_dsc.e4.offset = offset;
sc->cmv_dsc.e4.address = address;
sc->cmv_dsc.e4.group = group;
cmv.wFunction = cpu_to_be16(function);
cmv.wGroup = cpu_to_be16(group);
cmv.wAddress = cpu_to_be16(address);
cmv.wOffset = cpu_to_be16(offset);
cmv.dwData[0] = cpu_to_be32(data);
ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
sizeof(cmv), &cmv);
if (ret < 0)
return ret;
ret = wait_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return ret;
}
static inline int uea_read_cmv_e1(struct uea_softc *sc,
u32 address, u16 offset, u32 *data)
{
int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
address, offset, 0);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
"reading cmv failed with error %d\n", ret);
else
*data = sc->data;
return ret;
}
static inline int uea_read_cmv_e4(struct uea_softc *sc,
u8 size, u16 group, u16 address, u16 offset, u32 *data)
{
int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
E4_REQUESTREAD, size),
group, address, offset, 0);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
"reading cmv failed with error %d\n", ret);
else {
*data = sc->data;
/* size is in 16-bit word quantities */
if (size > 2)
*(data + 1) = sc->data1;
}
return ret;
}
static inline int uea_write_cmv_e1(struct uea_softc *sc,
u32 address, u16 offset, u32 data)
{
int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
address, offset, data);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
"writing cmv failed with error %d\n", ret);
return ret;
}
static inline int uea_write_cmv_e4(struct uea_softc *sc,
u8 size, u16 group, u16 address, u16 offset, u32 data)
{
int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
E4_REQUESTWRITE, size),
group, address, offset, data);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
"writing cmv failed with error %d\n", ret);
return ret;
}
static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
{
int ret;
u16 timeout;
/* in bulk mode the modem have problem with high rate
* changing internal timing could improve things, but the
* value is misterious.
* ADI930 don't support it (-EPIPE error).
*/
if (UEA_CHIP_VERSION(sc) == ADI930 ||
altsetting[sc->modem_index] > 0 ||
sc->stats.phy.dsrate == dsrate)
return;
/* Original timming (1Mbit/s) from ADI (used in windows driver) */
timeout = (dsrate <= 1024*1024) ? 0 : 1;
ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
timeout, ret < 0 ? " failed" : "");
}
/*
* Monitor the modem and update the stat
* return 0 if everything is ok
* return < 0 if an error occurs (-EAGAIN reboot needed)
*/
static int uea_stat_e1(struct uea_softc *sc)
{
u32 data;
int ret;
uea_enters(INS_TO_USBDEV(sc));
data = sc->stats.phy.state;
ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
if (ret < 0)
return ret;
switch (GET_STATUS(sc->stats.phy.state)) {
case 0: /* not yet synchronized */
uea_dbg(INS_TO_USBDEV(sc),
"modem not yet synchronized\n");
return 0;
case 1: /* initialization */
uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
return 0;
case 2: /* operational */
uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
break;
case 3: /* fail ... */
uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
" (may be try other cmv/dsp)\n");
return -EAGAIN;
case 4 ... 6: /* test state */
uea_warn(INS_TO_USBDEV(sc),
"modem in test mode - not supported\n");
return -EAGAIN;
case 7: /* fast-retain ... */
uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
return 0;
default:
uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
GET_STATUS(sc->stats.phy.state));
return -EAGAIN;
}
if (GET_STATUS(data) != 2) {
uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
uea_info(INS_TO_USBDEV(sc), "modem operational\n");
/* release the dsp firmware as it is not needed until
* the next failure
*/
if (sc->dsp_firm) {
release_firmware(sc->dsp_firm);
sc->dsp_firm = NULL;
}
}
/* always update it as atm layer could not be init when we switch to
* operational state
*/
UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
/* wake up processes waiting for synchronization */
wake_up(&sc->sync_q);
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
if (ret < 0)
return ret;
sc->stats.phy.mflags |= sc->stats.phy.flags;
/* in case of a flags ( for example delineation LOSS (& 0x10)),
* we check the status again in order to detect the failure earlier
*/
if (sc->stats.phy.flags) {
uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
sc->stats.phy.flags);
return 0;
}
ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
if (ret < 0)
return ret;
uea_set_bulk_timeout(sc, (data >> 16) * 32);
sc->stats.phy.dsrate = (data >> 16) * 32;
sc->stats.phy.usrate = (data & 0xffff) * 32;
UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
if (ret < 0)
return ret;
sc->stats.phy.dsattenuation = (data & 0xff) / 2;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
if (ret < 0)
return ret;
sc->stats.phy.usattenuation = (data & 0xff) / 2;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
if (ret < 0)
return ret;
/* only for atu-c */
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
if (ret < 0)
return ret;
/* only for atu-c */
ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
if (ret < 0)
return ret;
ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
if (ret < 0)
return ret;
return 0;
}
static int uea_stat_e4(struct uea_softc *sc)
{
u32 data;
u32 tmp_arr[2];
int ret;
uea_enters(INS_TO_USBDEV(sc));
data = sc->stats.phy.state;
/* XXX only need to be done before operationnal... */
ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
if (ret < 0)
return ret;
switch (sc->stats.phy.state) {
case 0x0: /* not yet synchronized */
case 0x1:
case 0x3:
case 0x4:
uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
"synchronized\n");
return 0;
case 0x5: /* initialization */
case 0x6:
case 0x9:
case 0xa:
uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
return 0;
case 0x2: /* fail ... */
uea_info(INS_TO_USBDEV(sc), "modem synchronization "
"failed (may be try other cmv/dsp)\n");
return -EAGAIN;
case 0x7: /* operational */
break;
default:
uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
sc->stats.phy.state);
return 0;
}
if (data != 7) {
uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
uea_info(INS_TO_USBDEV(sc), "modem operational\n");
/* release the dsp firmware as it is not needed until
* the next failure
*/
if (sc->dsp_firm) {
release_firmware(sc->dsp_firm);
sc->dsp_firm = NULL;
}
}
/* always update it as atm layer could not be init when we switch to
* operational state
*/
UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
/* wake up processes waiting for synchronization */
wake_up(&sc->sync_q);
/* TODO improve this state machine :
* we need some CMV info : what they do and their unit
* we should find the equivalent of eagle3- CMV
*/
/* check flags */
ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
if (ret < 0)
return ret;
sc->stats.phy.mflags |= sc->stats.phy.flags;
/* in case of a flags ( for example delineation LOSS (& 0x10)),
* we check the status again in order to detect the failure earlier
*/
if (sc->stats.phy.flags) {
uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
sc->stats.phy.flags);
if (sc->stats.phy.flags & 1) /* delineation LOSS */
return -EAGAIN;
if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
return -EAGAIN;
return 0;
}
/* rate data may be in upper or lower half of 64 bit word, strange */
ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
if (ret < 0)
return ret;
data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
sc->stats.phy.usrate = data / 1000;
ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
if (ret < 0)
return ret;
data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
uea_set_bulk_timeout(sc, data / 1000);
sc->stats.phy.dsrate = data / 1000;
UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
if (ret < 0)
return ret;
sc->stats.phy.dsattenuation = data / 10;
ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
if (ret < 0)
return ret;
sc->stats.phy.usattenuation = data / 10;
ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
if (ret < 0)
return ret;
sc->stats.phy.dsmargin = data / 2;
ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
if (ret < 0)
return ret;
sc->stats.phy.usmargin = data / 10;
return 0;
}
static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
{
char file_arr[] = "CMVxy.bin";
char *file;
kparam_block_sysfs_write(cmv_file);
/* set proper name corresponding modem version and line type */
if (cmv_file[sc->modem_index] == NULL) {
if (UEA_CHIP_VERSION(sc) == ADI930)
file_arr[3] = '9';
else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
file_arr[3] = '4';
else
file_arr[3] = 'e';
file_arr[4] = IS_ISDN(sc) ? 'i' : 'p';
file = file_arr;
} else
file = cmv_file[sc->modem_index];
strcpy(cmv_name, FW_DIR);
strlcat(cmv_name, file, UEA_FW_NAME_MAX);
if (ver == 2)
strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
kparam_unblock_sysfs_write(cmv_file);
}
static int request_cmvs_old(struct uea_softc *sc,
void **cmvs, const struct firmware **fw)
{
int ret, size;
u8 *data;
char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
cmvs_file_name(sc, cmv_name, 1);
ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"requesting firmware %s failed with error %d\n",
cmv_name, ret);
return ret;
}
data = (u8 *) (*fw)->data;
size = (*fw)->size;
if (size < 1)
goto err_fw_corrupted;
if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
goto err_fw_corrupted;
*cmvs = (void *)(data + 1);
return *data;
err_fw_corrupted:
uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
release_firmware(*fw);
return -EILSEQ;
}
static int request_cmvs(struct uea_softc *sc,
void **cmvs, const struct firmware **fw, int *ver)
{
int ret, size;
u32 crc;
u8 *data;
char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
cmvs_file_name(sc, cmv_name, 2);
ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
if (ret < 0) {
/* if caller can handle old version, try to provide it */
if (*ver == 1) {
uea_warn(INS_TO_USBDEV(sc), "requesting "
"firmware %s failed, "
"try to get older cmvs\n", cmv_name);
return request_cmvs_old(sc, cmvs, fw);
}
uea_err(INS_TO_USBDEV(sc),
"requesting firmware %s failed with error %d\n",
cmv_name, ret);
return ret;
}
size = (*fw)->size;
data = (u8 *) (*fw)->data;
if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
if (*ver == 1) {
uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
" try to get older cmvs\n", cmv_name);
release_firmware(*fw);
return request_cmvs_old(sc, cmvs, fw);
}
goto err_fw_corrupted;
}
*ver = 2;
data += 4;
size -= 4;
if (size < 5)
goto err_fw_corrupted;
crc = get_unaligned_le32(data);
data += 4;
size -= 4;
if (crc32_be(0, data, size) != crc)
goto err_fw_corrupted;
if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
goto err_fw_corrupted;
*cmvs = (void *) (data + 1);
return *data;
err_fw_corrupted:
uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
release_firmware(*fw);
return -EILSEQ;
}
static int uea_send_cmvs_e1(struct uea_softc *sc)
{
int i, ret, len;
void *cmvs_ptr;
const struct firmware *cmvs_fw;
int ver = 1; /* we can handle v1 cmv firmware version; */
/* Enter in R-IDLE (cmv) until instructed otherwise */
ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
if (ret < 0)
return ret;
/* Dump firmware version */
ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
if (ret < 0)
return ret;
uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
sc->stats.phy.firmid);
/* get options */
ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
if (ret < 0)
return ret;
/* send options */
if (ver == 1) {
struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;
uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
"please update your firmware\n");
for (i = 0; i < len; i++) {
ret = uea_write_cmv_e1(sc,
get_unaligned_le32(&cmvs_v1[i].address),
get_unaligned_le16(&cmvs_v1[i].offset),
get_unaligned_le32(&cmvs_v1[i].data));
if (ret < 0)
goto out;
}
} else if (ver == 2) {
struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
for (i = 0; i < len; i++) {
ret = uea_write_cmv_e1(sc,
get_unaligned_le32(&cmvs_v2[i].address),
(u16) get_unaligned_le32(&cmvs_v2[i].offset),
get_unaligned_le32(&cmvs_v2[i].data));
if (ret < 0)
goto out;
}
} else {
/* This realy should not happen */
uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
goto out;
}
/* Enter in R-ACT-REQ */
ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
"synchronization...\n");
out:
release_firmware(cmvs_fw);
return ret;
}
static int uea_send_cmvs_e4(struct uea_softc *sc)
{
int i, ret, len;
void *cmvs_ptr;
const struct firmware *cmvs_fw;
int ver = 2; /* we can only handle v2 cmv firmware version; */
/* Enter in R-IDLE (cmv) until instructed otherwise */
ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
if (ret < 0)
return ret;
/* Dump firmware version */
/* XXX don't read the 3th byte as it is always 6 */
ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
if (ret < 0)
return ret;
uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
sc->stats.phy.firmid);
/* get options */
ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
if (ret < 0)
return ret;
/* send options */
if (ver == 2) {
struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
for (i = 0; i < len; i++) {
ret = uea_write_cmv_e4(sc, 1,
get_unaligned_le32(&cmvs_v2[i].group),
get_unaligned_le32(&cmvs_v2[i].address),
get_unaligned_le32(&cmvs_v2[i].offset),
get_unaligned_le32(&cmvs_v2[i].data));
if (ret < 0)
goto out;
}
} else {
/* This realy should not happen */
uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
goto out;
}
/* Enter in R-ACT-REQ */
ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
"synchronization...\n");
out:
release_firmware(cmvs_fw);
return ret;
}
/* Start boot post firmware modem:
* - send reset commands through usb control pipe
* - start workqueue for DSP loading
* - send CMV options to modem
*/
static int uea_start_reset(struct uea_softc *sc)
{
u16 zero = 0; /* ;-) */
int ret;
uea_enters(INS_TO_USBDEV(sc));
uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
/* mask interrupt */
sc->booting = 1;
/* We need to set this here because, a ack timeout could have occured,
* but before we start the reboot, the ack occurs and set this to 1.
* So we will failed to wait Ready CMV.
*/
sc->cmv_ack = 0;
UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
/* reset statistics */
memset(&sc->stats, 0, sizeof(struct uea_stats));
/* tell the modem that we want to boot in IDMA mode */
uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
/* enter reset mode */
uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
/* original driver use 200ms, but windows driver use 100ms */
ret = uea_wait(sc, 0, msecs_to_jiffies(100));
if (ret < 0)
return ret;
/* leave reset mode */
uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
/* clear tx and rx mailboxes */
uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
}
ret = uea_wait(sc, 0, msecs_to_jiffies(1000));
if (ret < 0)
return ret;
if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
E4_MODEMREADY, 1);
else
sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
E1_MODEMREADY);
/* demask interrupt */
sc->booting = 0;
/* start loading DSP */
sc->pageno = 0;
sc->ovl = 0;
queue_work(sc->work_q, &sc->task);
/* wait for modem ready CMV */
ret = wait_cmv_ack(sc);
if (ret < 0)
return ret;
uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
ret = sc->send_cmvs(sc);
if (ret < 0)
return ret;
sc->reset = 0;
uea_leaves(INS_TO_USBDEV(sc));
return ret;
}
/*
* In case of an error wait 1s before rebooting the modem
* if the modem don't request reboot (-EAGAIN).
* Monitor the modem every 1s.
*/
static int uea_kthread(void *data)
{
struct uea_softc *sc = data;
int ret = -EAGAIN;
set_freezable();
uea_enters(INS_TO_USBDEV(sc));
while (!kthread_should_stop()) {
if (ret < 0 || sc->reset)
ret = uea_start_reset(sc);
if (!ret)
ret = sc->stat(sc);
if (ret != -EAGAIN)
uea_wait(sc, 0, msecs_to_jiffies(1000));
try_to_freeze();
}
uea_leaves(INS_TO_USBDEV(sc));
return ret;
}
/* Load second usb firmware for ADI930 chip */
static int load_XILINX_firmware(struct uea_softc *sc)
{
const struct firmware *fw_entry;
int ret, size, u, ln;
const u8 *pfw;
u8 value;
char *fw_name = FW_DIR "930-fpga.bin";
uea_enters(INS_TO_USBDEV(sc));
ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
if (ret) {
uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
fw_name);
goto err0;
}
pfw = fw_entry->data;
size = fw_entry->size;
if (size != 0x577B) {
uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
fw_name);
ret = -EILSEQ;
goto err1;
}
for (u = 0; u < size; u += ln) {
ln = min(size - u, 64);
ret = uea_request(sc, 0xe, 0, ln, pfw + u);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"elsa download data failed (%d)\n", ret);
goto err1;
}
}
/* finish to send the fpga */
ret = uea_request(sc, 0xe, 1, 0, NULL);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"elsa download data failed (%d)\n", ret);
goto err1;
}
/* Tell the modem we finish : de-assert reset */
value = 0;
ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
if (ret < 0)
uea_err(sc->usb_dev, "elsa de-assert failed with error"
" %d\n", ret);
err1:
release_firmware(fw_entry);
err0:
uea_leaves(INS_TO_USBDEV(sc));
return ret;
}
/* The modem send us an ack. First with check if it right */
static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
{
struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
uea_enters(INS_TO_USBDEV(sc));
if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
goto bad1;
if (cmv->bDirection != E1_MODEMTOHOST)
goto bad1;
/* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
* the first MEMACCESS cmv. Ignore it...
*/
if (cmv->bFunction != dsc->function) {
if (UEA_CHIP_VERSION(sc) == ADI930
&& cmv->bFunction == E1_MAKEFUNCTION(2, 2)) {
cmv->wIndex = cpu_to_le16(dsc->idx);
put_unaligned_le32(dsc->address,
&cmv->dwSymbolicAddress);
cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
} else
goto bad2;
}
if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
E1_MODEMREADY)) {
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
}
/* in case of MEMACCESS */
if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
goto bad2;
sc->data = get_unaligned_le32(&cmv->dwData);
sc->data = sc->data << 16 | sc->data >> 16;
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
bad2:
uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
"Function : %d, Subfunction : %d\n",
E1_FUNCTION_TYPE(cmv->bFunction),
E1_FUNCTION_SUBTYPE(cmv->bFunction));
uea_leaves(INS_TO_USBDEV(sc));
return;
bad1:
uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
"wPreamble %d, bDirection %d\n",
le16_to_cpu(cmv->wPreamble), cmv->bDirection);
uea_leaves(INS_TO_USBDEV(sc));
}
/* The modem send us an ack. First with check if it right */
static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
{
struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
uea_enters(INS_TO_USBDEV(sc));
uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
if (be16_to_cpu(cmv->wFunction) != dsc->function)
goto bad2;
if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
E4_MODEMREADY, 1)) {
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
}
/* in case of MEMACCESS */
if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
be16_to_cpu(cmv->wGroup) != dsc->group ||
be16_to_cpu(cmv->wAddress) != dsc->address)
goto bad2;
sc->data = be32_to_cpu(cmv->dwData[0]);
sc->data1 = be32_to_cpu(cmv->dwData[1]);
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
bad2:
uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
"Function : %d, Subfunction : %d\n",
E4_FUNCTION_TYPE(cmv->wFunction),
E4_FUNCTION_SUBTYPE(cmv->wFunction));
uea_leaves(INS_TO_USBDEV(sc));
return;
}
static void uea_schedule_load_page_e1(struct uea_softc *sc,
struct intr_pkt *intr)
{
sc->pageno = intr->e1_bSwapPageNo;
sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
queue_work(sc->work_q, &sc->task);
}
static void uea_schedule_load_page_e4(struct uea_softc *sc,
struct intr_pkt *intr)
{
sc->pageno = intr->e4_bSwapPageNo;
queue_work(sc->work_q, &sc->task);
}
/*
* interrupt handler
*/
static void uea_intr(struct urb *urb)
{
struct uea_softc *sc = urb->context;
struct intr_pkt *intr = urb->transfer_buffer;
int status = urb->status;
uea_enters(INS_TO_USBDEV(sc));
if (unlikely(status < 0)) {
uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
status);
return;
}
/* device-to-host interrupt */
if (intr->bType != 0x08 || sc->booting) {
uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
goto resubmit;
}
switch (le16_to_cpu(intr->wInterrupt)) {
case INT_LOADSWAPPAGE:
sc->schedule_load_page(sc, intr);
break;
case INT_INCOMINGCMV:
sc->dispatch_cmv(sc, intr);
break;
default:
uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
le16_to_cpu(intr->wInterrupt));
}
resubmit:
usb_submit_urb(sc->urb_int, GFP_ATOMIC);
}
/*
* Start the modem : init the data and start kernel thread
*/
static int uea_boot(struct uea_softc *sc)
{
int ret, size;
struct intr_pkt *intr;
uea_enters(INS_TO_USBDEV(sc));
if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
size = E4_INTR_PKT_SIZE;
sc->dispatch_cmv = uea_dispatch_cmv_e4;
sc->schedule_load_page = uea_schedule_load_page_e4;
sc->stat = uea_stat_e4;
sc->send_cmvs = uea_send_cmvs_e4;
INIT_WORK(&sc->task, uea_load_page_e4);
} else {
size = E1_INTR_PKT_SIZE;
sc->dispatch_cmv = uea_dispatch_cmv_e1;
sc->schedule_load_page = uea_schedule_load_page_e1;
sc->stat = uea_stat_e1;
sc->send_cmvs = uea_send_cmvs_e1;
INIT_WORK(&sc->task, uea_load_page_e1);
}
init_waitqueue_head(&sc->sync_q);
sc->work_q = create_workqueue("ueagle-dsp");
if (!sc->work_q) {
uea_err(INS_TO_USBDEV(sc), "cannot allocate workqueue\n");
uea_leaves(INS_TO_USBDEV(sc));
return -ENOMEM;
}
if (UEA_CHIP_VERSION(sc) == ADI930)
load_XILINX_firmware(sc);
intr = kmalloc(size, GFP_KERNEL);
if (!intr) {
uea_err(INS_TO_USBDEV(sc),
"cannot allocate interrupt package\n");
goto err0;
}
sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
if (!sc->urb_int) {
uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
goto err1;
}
usb_fill_int_urb(sc->urb_int, sc->usb_dev,
usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
intr, size, uea_intr, sc,
sc->usb_dev->actconfig->interface[0]->altsetting[0].
endpoint[0].desc.bInterval);
ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"urb submition failed with error %d\n", ret);
goto err1;
}
sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
if (sc->kthread == ERR_PTR(-ENOMEM)) {
uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
goto err2;
}
uea_leaves(INS_TO_USBDEV(sc));
return 0;
err2:
usb_kill_urb(sc->urb_int);
err1:
usb_free_urb(sc->urb_int);
sc->urb_int = NULL;
kfree(intr);
err0:
destroy_workqueue(sc->work_q);
uea_leaves(INS_TO_USBDEV(sc));
return -ENOMEM;
}
/*
* Stop the modem : kill kernel thread and free data
*/
static void uea_stop(struct uea_softc *sc)
{
int ret;
uea_enters(INS_TO_USBDEV(sc));
ret = kthread_stop(sc->kthread);
uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
usb_kill_urb(sc->urb_int);
kfree(sc->urb_int->transfer_buffer);
usb_free_urb(sc->urb_int);
/* stop any pending boot process, when no one can schedule work */
destroy_workqueue(sc->work_q);
if (sc->dsp_firm)
release_firmware(sc->dsp_firm);
uea_leaves(INS_TO_USBDEV(sc));
}
/* syfs interface */
static struct uea_softc *dev_to_uea(struct device *dev)
{
struct usb_interface *intf;
struct usbatm_data *usbatm;
intf = to_usb_interface(dev);
if (!intf)
return NULL;
usbatm = usb_get_intfdata(intf);
if (!usbatm)
return NULL;
return usbatm->driver_data;
}
static ssize_t read_status(struct device *dev, struct device_attribute *attr,
char *buf)
{
int ret = -ENODEV;
struct uea_softc *sc;
mutex_lock(&uea_mutex);
sc = dev_to_uea(dev);
if (!sc)
goto out;
ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
out:
mutex_unlock(&uea_mutex);
return ret;
}
static ssize_t reboot(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int ret = -ENODEV;
struct uea_softc *sc;
mutex_lock(&uea_mutex);
sc = dev_to_uea(dev);
if (!sc)
goto out;
sc->reset = 1;
ret = count;
out:
mutex_unlock(&uea_mutex);
return ret;
}
static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
static ssize_t read_human_status(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret = -ENODEV;
int modem_state;
struct uea_softc *sc;
mutex_lock(&uea_mutex);
sc = dev_to_uea(dev);
if (!sc)
goto out;
if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
switch (sc->stats.phy.state) {
case 0x0: /* not yet synchronized */
case 0x1:
case 0x3:
case 0x4:
modem_state = 0;
break;
case 0x5: /* initialization */
case 0x6:
case 0x9:
case 0xa:
modem_state = 1;
break;
case 0x7: /* operational */
modem_state = 2;
break;
case 0x2: /* fail ... */
modem_state = 3;
break;
default: /* unknown */
modem_state = 4;
break;
}
} else
modem_state = GET_STATUS(sc->stats.phy.state);
switch (modem_state) {
case 0:
ret = sprintf(buf, "Modem is booting\n");
break;
case 1:
ret = sprintf(buf, "Modem is initializing\n");
break;
case 2:
ret = sprintf(buf, "Modem is operational\n");
break;
case 3:
ret = sprintf(buf, "Modem synchronization failed\n");
break;
default:
ret = sprintf(buf, "Modem state is unknown\n");
break;
}
out:
mutex_unlock(&uea_mutex);
return ret;
}
static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO,
read_human_status, NULL);
static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
char *buf)
{
int ret = -ENODEV;
struct uea_softc *sc;
char *delin = "GOOD";
mutex_lock(&uea_mutex);
sc = dev_to_uea(dev);
if (!sc)
goto out;
if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
if (sc->stats.phy.flags & 0x4000)
delin = "RESET";
else if (sc->stats.phy.flags & 0x0001)
delin = "LOSS";
} else {
if (sc->stats.phy.flags & 0x0C00)
delin = "ERROR";
else if (sc->stats.phy.flags & 0x0030)
delin = "LOSS";
}
ret = sprintf(buf, "%s\n", delin);
out:
mutex_unlock(&uea_mutex);
return ret;
}
static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
#define UEA_ATTR(name, reset) \
\
static ssize_t read_##name(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
int ret = -ENODEV; \
struct uea_softc *sc; \
\
mutex_lock(&uea_mutex); \
sc = dev_to_uea(dev); \
if (!sc) \
goto out; \
ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
if (reset) \
sc->stats.phy.name = 0; \
out: \
mutex_unlock(&uea_mutex); \
return ret; \
} \
\
static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
UEA_ATTR(mflags, 1);
UEA_ATTR(vidcpe, 0);
UEA_ATTR(usrate, 0);
UEA_ATTR(dsrate, 0);
UEA_ATTR(usattenuation, 0);
UEA_ATTR(dsattenuation, 0);
UEA_ATTR(usmargin, 0);
UEA_ATTR(dsmargin, 0);
UEA_ATTR(txflow, 0);
UEA_ATTR(rxflow, 0);
UEA_ATTR(uscorr, 0);
UEA_ATTR(dscorr, 0);
UEA_ATTR(usunc, 0);
UEA_ATTR(dsunc, 0);
UEA_ATTR(firmid, 0);
/* Retrieve the device End System Identifier (MAC) */
static int uea_getesi(struct uea_softc *sc, u_char * esi)
{
unsigned char mac_str[2 * ETH_ALEN + 1];
int i;
if (usb_string
(sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
sizeof(mac_str)) != 2 * ETH_ALEN)
return 1;
for (i = 0; i < ETH_ALEN; i++)
esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
hex_to_bin(mac_str[2 * i + 1]);
return 0;
}
/* ATM stuff */
static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
{
struct uea_softc *sc = usbatm->driver_data;
return uea_getesi(sc, atm_dev->esi);
}
static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
{
struct uea_softc *sc = usbatm->driver_data;
wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
return 0;
}
static int claim_interface(struct usb_device *usb_dev,
struct usbatm_data *usbatm, int ifnum)
{
int ret;
struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
if (!intf) {
uea_err(usb_dev, "interface %d not found\n", ifnum);
return -ENODEV;
}
ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
if (ret != 0)
uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
ret);
return ret;
}
static struct attribute *attrs[] = {
&dev_attr_stat_status.attr,
&dev_attr_stat_mflags.attr,
&dev_attr_stat_human_status.attr,
&dev_attr_stat_delin.attr,
&dev_attr_stat_vidcpe.attr,
&dev_attr_stat_usrate.attr,
&dev_attr_stat_dsrate.attr,
&dev_attr_stat_usattenuation.attr,
&dev_attr_stat_dsattenuation.attr,
&dev_attr_stat_usmargin.attr,
&dev_attr_stat_dsmargin.attr,
&dev_attr_stat_txflow.attr,
&dev_attr_stat_rxflow.attr,
&dev_attr_stat_uscorr.attr,
&dev_attr_stat_dscorr.attr,
&dev_attr_stat_usunc.attr,
&dev_attr_stat_dsunc.attr,
&dev_attr_stat_firmid.attr,
NULL,
};
static struct attribute_group attr_grp = {
.attrs = attrs,
};
static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *usb = interface_to_usbdev(intf);
struct uea_softc *sc;
int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
unsigned int alt;
uea_enters(usb);
/* interface 0 is for firmware/monitoring */
if (ifnum != UEA_INTR_IFACE_NO)
return -ENODEV;
usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
/* interface 1 is for outbound traffic */
ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
if (ret < 0)
return ret;
/* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
if (UEA_CHIP_VERSION(id) != ADI930) {
/* interface 2 is for inbound traffic */
ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
if (ret < 0)
return ret;
}
sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
if (!sc) {
uea_err(usb, "uea_init: not enough memory !\n");
return -ENOMEM;
}
sc->usb_dev = usb;
usbatm->driver_data = sc;
sc->usbatm = usbatm;
sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
sc->driver_info = id->driver_info;
/* first try to use module parameter */
if (annex[sc->modem_index] == 1)
sc->annex = ANNEXA;
else if (annex[sc->modem_index] == 2)
sc->annex = ANNEXB;
/* try to autodetect annex */
else if (sc->driver_info & AUTO_ANNEX_A)
sc->annex = ANNEXA;
else if (sc->driver_info & AUTO_ANNEX_B)
sc->annex = ANNEXB;
else
sc->annex = (le16_to_cpu
(sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
alt = altsetting[sc->modem_index];
/* ADI930 don't support iso */
if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
if (alt <= 8 &&
usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
uea_info(usb, "using iso mode\n");
usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
} else {
uea_err(usb, "setting alternate %u failed for "
"2 interface, using bulk mode\n", alt);
}
}
ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
if (ret < 0)
goto error;
ret = uea_boot(sc);
if (ret < 0)
goto error_rm_grp;
return 0;
error_rm_grp:
sysfs_remove_group(&intf->dev.kobj, &attr_grp);
error:
kfree(sc);
return ret;
}
static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
{
struct uea_softc *sc = usbatm->driver_data;
sysfs_remove_group(&intf->dev.kobj, &attr_grp);
uea_stop(sc);
kfree(sc);
}
static struct usbatm_driver uea_usbatm_driver = {
.driver_name = "ueagle-atm",
.bind = uea_bind,
.atm_start = uea_atm_open,
.unbind = uea_unbind,
.heavy_init = uea_heavy,
.bulk_in = UEA_BULK_DATA_PIPE,
.bulk_out = UEA_BULK_DATA_PIPE,
.isoc_in = UEA_ISO_DATA_PIPE,
};
static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *usb = interface_to_usbdev(intf);
uea_enters(usb);
uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
le16_to_cpu(usb->descriptor.idVendor),
le16_to_cpu(usb->descriptor.idProduct),
le16_to_cpu(usb->descriptor.bcdDevice),
chip_name[UEA_CHIP_VERSION(id)]);
usb_reset_device(usb);
if (UEA_IS_PREFIRM(id))
return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
}
static void uea_disconnect(struct usb_interface *intf)
{
struct usb_device *usb = interface_to_usbdev(intf);
int ifnum = intf->altsetting->desc.bInterfaceNumber;
uea_enters(usb);
/* ADI930 has 2 interfaces and eagle 3 interfaces.
* Pre-firmware device has one interface
*/
if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
mutex_lock(&uea_mutex);
usbatm_usb_disconnect(intf);
mutex_unlock(&uea_mutex);
uea_info(usb, "ADSL device removed\n");
}
uea_leaves(usb);
}
/*
* List of supported VID/PID
*/
static const struct usb_device_id uea_ids[] = {
{USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM),
.driver_info = ADI930 | PREFIRM},
{USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM),
.driver_info = ADI930 | PSTFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM),
.driver_info = EAGLE_II | PREFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM),
.driver_info = EAGLE_II | PSTFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM),
.driver_info = EAGLE_II | PREFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM),
.driver_info = EAGLE_II | PSTFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM),
.driver_info = EAGLE_III | PREFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM),
.driver_info = EAGLE_III | PSTFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM),
.driver_info = EAGLE_IV | PREFIRM},
{USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM),
.driver_info = EAGLE_IV | PSTFIRM},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM),
.driver_info = EAGLE_II | PREFIRM},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM),
.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM),
.driver_info = EAGLE_II | PREFIRM},
{USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM),
.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
{USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM),
.driver_info = ADI930 | PREFIRM},
{USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM),
.driver_info = ADI930 | PSTFIRM},
{USB_DEVICE(ELSA_VID, ELSA_PID_A_PREFIRM),
.driver_info = ADI930 | PREFIRM},
{USB_DEVICE(ELSA_VID, ELSA_PID_A_PSTFIRM),
.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
{USB_DEVICE(ELSA_VID, ELSA_PID_B_PREFIRM),
.driver_info = ADI930 | PREFIRM},
{USB_DEVICE(ELSA_VID, ELSA_PID_B_PSTFIRM),
.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
{USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
{USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
{USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
{USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),
.driver_info = EAGLE_I | PREFIRM},
{USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),
.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
{}
};
/*
* USB driver descriptor
*/
static struct usb_driver uea_driver = {
.name = "ueagle-atm",
.id_table = uea_ids,
.probe = uea_probe,
.disconnect = uea_disconnect,
};
MODULE_DEVICE_TABLE(usb, uea_ids);
/**
* uea_init - Initialize the module.
* Register to USB subsystem
*/
static int __init uea_init(void)
{
printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
usb_register(&uea_driver);
return 0;
}
module_init(uea_init);
/**
* uea_exit - Destroy module
* Deregister with USB subsystem
*/
static void __exit uea_exit(void)
{
/*
* This calls automatically the uea_disconnect method if necessary:
*/
usb_deregister(&uea_driver);
printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
}
module_exit(uea_exit);
MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
MODULE_LICENSE("Dual BSD/GPL");
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