4ac58469f1
This fixes DMA on architectures where DMA is nontrivial, like PPC64. We must use the host-device's (PCI) struct device for any DMA operation instead of the SSB device. For this we add a new struct device pointer to the SSB device structure that will always point to the right device for DMAing. Without this patch b43 and b44 drivers won't work on complex-DMA architectures, that for example need dev->archdata for DMA operations. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
421 lines
12 KiB
C
421 lines
12 KiB
C
#ifndef LINUX_SSB_H_
|
|
#define LINUX_SSB_H_
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/list.h>
|
|
#include <linux/types.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
#include <linux/ssb/ssb_regs.h>
|
|
|
|
|
|
struct pcmcia_device;
|
|
struct ssb_bus;
|
|
struct ssb_driver;
|
|
|
|
struct ssb_sprom {
|
|
u8 revision;
|
|
u8 il0mac[6]; /* MAC address for 802.11b/g */
|
|
u8 et0mac[6]; /* MAC address for Ethernet */
|
|
u8 et1mac[6]; /* MAC address for 802.11a */
|
|
u8 et0phyaddr; /* MII address for enet0 */
|
|
u8 et1phyaddr; /* MII address for enet1 */
|
|
u8 et0mdcport; /* MDIO for enet0 */
|
|
u8 et1mdcport; /* MDIO for enet1 */
|
|
u8 board_rev; /* Board revision number from SPROM. */
|
|
u8 country_code; /* Country Code */
|
|
u8 ant_available_a; /* A-PHY antenna available bits (up to 4) */
|
|
u8 ant_available_bg; /* B/G-PHY antenna available bits (up to 4) */
|
|
u16 pa0b0;
|
|
u16 pa0b1;
|
|
u16 pa0b2;
|
|
u16 pa1b0;
|
|
u16 pa1b1;
|
|
u16 pa1b2;
|
|
u8 gpio0; /* GPIO pin 0 */
|
|
u8 gpio1; /* GPIO pin 1 */
|
|
u8 gpio2; /* GPIO pin 2 */
|
|
u8 gpio3; /* GPIO pin 3 */
|
|
u16 maxpwr_a; /* A-PHY Amplifier Max Power (in dBm Q5.2) */
|
|
u16 maxpwr_bg; /* B/G-PHY Amplifier Max Power (in dBm Q5.2) */
|
|
u8 itssi_a; /* Idle TSSI Target for A-PHY */
|
|
u8 itssi_bg; /* Idle TSSI Target for B/G-PHY */
|
|
u16 boardflags_lo; /* Boardflags (low 16 bits) */
|
|
u16 boardflags_hi; /* Boardflags (high 16 bits) */
|
|
|
|
/* Antenna gain values for up to 4 antennas
|
|
* on each band. Values in dBm/4 (Q5.2). Negative gain means the
|
|
* loss in the connectors is bigger than the gain. */
|
|
struct {
|
|
struct {
|
|
s8 a0, a1, a2, a3;
|
|
} ghz24; /* 2.4GHz band */
|
|
struct {
|
|
s8 a0, a1, a2, a3;
|
|
} ghz5; /* 5GHz band */
|
|
} antenna_gain;
|
|
|
|
/* TODO - add any parameters needed from rev 2, 3, or 4 SPROMs */
|
|
};
|
|
|
|
/* Information about the PCB the circuitry is soldered on. */
|
|
struct ssb_boardinfo {
|
|
u16 vendor;
|
|
u16 type;
|
|
u16 rev;
|
|
};
|
|
|
|
|
|
struct ssb_device;
|
|
/* Lowlevel read/write operations on the device MMIO.
|
|
* Internal, don't use that outside of ssb. */
|
|
struct ssb_bus_ops {
|
|
u16 (*read16)(struct ssb_device *dev, u16 offset);
|
|
u32 (*read32)(struct ssb_device *dev, u16 offset);
|
|
void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
|
|
void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
|
|
};
|
|
|
|
|
|
/* Core-ID values. */
|
|
#define SSB_DEV_CHIPCOMMON 0x800
|
|
#define SSB_DEV_ILINE20 0x801
|
|
#define SSB_DEV_SDRAM 0x803
|
|
#define SSB_DEV_PCI 0x804
|
|
#define SSB_DEV_MIPS 0x805
|
|
#define SSB_DEV_ETHERNET 0x806
|
|
#define SSB_DEV_V90 0x807
|
|
#define SSB_DEV_USB11_HOSTDEV 0x808
|
|
#define SSB_DEV_ADSL 0x809
|
|
#define SSB_DEV_ILINE100 0x80A
|
|
#define SSB_DEV_IPSEC 0x80B
|
|
#define SSB_DEV_PCMCIA 0x80D
|
|
#define SSB_DEV_INTERNAL_MEM 0x80E
|
|
#define SSB_DEV_MEMC_SDRAM 0x80F
|
|
#define SSB_DEV_EXTIF 0x811
|
|
#define SSB_DEV_80211 0x812
|
|
#define SSB_DEV_MIPS_3302 0x816
|
|
#define SSB_DEV_USB11_HOST 0x817
|
|
#define SSB_DEV_USB11_DEV 0x818
|
|
#define SSB_DEV_USB20_HOST 0x819
|
|
#define SSB_DEV_USB20_DEV 0x81A
|
|
#define SSB_DEV_SDIO_HOST 0x81B
|
|
#define SSB_DEV_ROBOSWITCH 0x81C
|
|
#define SSB_DEV_PARA_ATA 0x81D
|
|
#define SSB_DEV_SATA_XORDMA 0x81E
|
|
#define SSB_DEV_ETHERNET_GBIT 0x81F
|
|
#define SSB_DEV_PCIE 0x820
|
|
#define SSB_DEV_MIMO_PHY 0x821
|
|
#define SSB_DEV_SRAM_CTRLR 0x822
|
|
#define SSB_DEV_MINI_MACPHY 0x823
|
|
#define SSB_DEV_ARM_1176 0x824
|
|
#define SSB_DEV_ARM_7TDMI 0x825
|
|
|
|
/* Vendor-ID values */
|
|
#define SSB_VENDOR_BROADCOM 0x4243
|
|
|
|
/* Some kernel subsystems poke with dev->drvdata, so we must use the
|
|
* following ugly workaround to get from struct device to struct ssb_device */
|
|
struct __ssb_dev_wrapper {
|
|
struct device dev;
|
|
struct ssb_device *sdev;
|
|
};
|
|
|
|
struct ssb_device {
|
|
/* Having a copy of the ops pointer in each dev struct
|
|
* is an optimization. */
|
|
const struct ssb_bus_ops *ops;
|
|
|
|
struct device *dev;
|
|
/* Pointer to the device that has to be used for
|
|
* any DMA related operation. */
|
|
struct device *dma_dev;
|
|
|
|
struct ssb_bus *bus;
|
|
struct ssb_device_id id;
|
|
|
|
u8 core_index;
|
|
unsigned int irq;
|
|
|
|
/* Internal-only stuff follows. */
|
|
void *drvdata; /* Per-device data */
|
|
void *devtypedata; /* Per-devicetype (eg 802.11) data */
|
|
};
|
|
|
|
/* Go from struct device to struct ssb_device. */
|
|
static inline
|
|
struct ssb_device * dev_to_ssb_dev(struct device *dev)
|
|
{
|
|
struct __ssb_dev_wrapper *wrap;
|
|
wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
|
|
return wrap->sdev;
|
|
}
|
|
|
|
/* Device specific user data */
|
|
static inline
|
|
void ssb_set_drvdata(struct ssb_device *dev, void *data)
|
|
{
|
|
dev->drvdata = data;
|
|
}
|
|
static inline
|
|
void * ssb_get_drvdata(struct ssb_device *dev)
|
|
{
|
|
return dev->drvdata;
|
|
}
|
|
|
|
/* Devicetype specific user data. This is per device-type (not per device) */
|
|
void ssb_set_devtypedata(struct ssb_device *dev, void *data);
|
|
static inline
|
|
void * ssb_get_devtypedata(struct ssb_device *dev)
|
|
{
|
|
return dev->devtypedata;
|
|
}
|
|
|
|
|
|
struct ssb_driver {
|
|
const char *name;
|
|
const struct ssb_device_id *id_table;
|
|
|
|
int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
|
|
void (*remove)(struct ssb_device *dev);
|
|
int (*suspend)(struct ssb_device *dev, pm_message_t state);
|
|
int (*resume)(struct ssb_device *dev);
|
|
void (*shutdown)(struct ssb_device *dev);
|
|
|
|
struct device_driver drv;
|
|
};
|
|
#define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
|
|
|
|
extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
|
|
static inline int ssb_driver_register(struct ssb_driver *drv)
|
|
{
|
|
return __ssb_driver_register(drv, THIS_MODULE);
|
|
}
|
|
extern void ssb_driver_unregister(struct ssb_driver *drv);
|
|
|
|
|
|
|
|
|
|
enum ssb_bustype {
|
|
SSB_BUSTYPE_SSB, /* This SSB bus is the system bus */
|
|
SSB_BUSTYPE_PCI, /* SSB is connected to PCI bus */
|
|
SSB_BUSTYPE_PCMCIA, /* SSB is connected to PCMCIA bus */
|
|
};
|
|
|
|
/* board_vendor */
|
|
#define SSB_BOARDVENDOR_BCM 0x14E4 /* Broadcom */
|
|
#define SSB_BOARDVENDOR_DELL 0x1028 /* Dell */
|
|
#define SSB_BOARDVENDOR_HP 0x0E11 /* HP */
|
|
/* board_type */
|
|
#define SSB_BOARD_BCM94306MP 0x0418
|
|
#define SSB_BOARD_BCM4309G 0x0421
|
|
#define SSB_BOARD_BCM4306CB 0x0417
|
|
#define SSB_BOARD_BCM4309MP 0x040C
|
|
#define SSB_BOARD_MP4318 0x044A
|
|
#define SSB_BOARD_BU4306 0x0416
|
|
#define SSB_BOARD_BU4309 0x040A
|
|
/* chip_package */
|
|
#define SSB_CHIPPACK_BCM4712S 1 /* Small 200pin 4712 */
|
|
#define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */
|
|
#define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */
|
|
|
|
#include <linux/ssb/ssb_driver_chipcommon.h>
|
|
#include <linux/ssb/ssb_driver_mips.h>
|
|
#include <linux/ssb/ssb_driver_extif.h>
|
|
#include <linux/ssb/ssb_driver_pci.h>
|
|
|
|
struct ssb_bus {
|
|
/* The MMIO area. */
|
|
void __iomem *mmio;
|
|
|
|
const struct ssb_bus_ops *ops;
|
|
|
|
/* The core in the basic address register window. (PCI bus only) */
|
|
struct ssb_device *mapped_device;
|
|
/* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
|
|
u8 mapped_pcmcia_seg;
|
|
/* Lock for core and segment switching.
|
|
* On PCMCIA-host busses this is used to protect the whole MMIO access. */
|
|
spinlock_t bar_lock;
|
|
|
|
/* The bus this backplane is running on. */
|
|
enum ssb_bustype bustype;
|
|
/* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
|
|
struct pci_dev *host_pci;
|
|
/* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
|
|
struct pcmcia_device *host_pcmcia;
|
|
|
|
#ifdef CONFIG_SSB_PCIHOST
|
|
/* Mutex to protect the SPROM writing. */
|
|
struct mutex pci_sprom_mutex;
|
|
#endif
|
|
|
|
/* ID information about the Chip. */
|
|
u16 chip_id;
|
|
u16 chip_rev;
|
|
u16 sprom_size; /* number of words in sprom */
|
|
u8 chip_package;
|
|
|
|
/* List of devices (cores) on the backplane. */
|
|
struct ssb_device devices[SSB_MAX_NR_CORES];
|
|
u8 nr_devices;
|
|
|
|
/* Reference count. Number of suspended devices. */
|
|
u8 suspend_cnt;
|
|
|
|
/* Software ID number for this bus. */
|
|
unsigned int busnumber;
|
|
|
|
/* The ChipCommon device (if available). */
|
|
struct ssb_chipcommon chipco;
|
|
/* The PCI-core device (if available). */
|
|
struct ssb_pcicore pcicore;
|
|
/* The MIPS-core device (if available). */
|
|
struct ssb_mipscore mipscore;
|
|
/* The EXTif-core device (if available). */
|
|
struct ssb_extif extif;
|
|
|
|
/* The following structure elements are not available in early
|
|
* SSB initialization. Though, they are available for regular
|
|
* registered drivers at any stage. So be careful when
|
|
* using them in the ssb core code. */
|
|
|
|
/* ID information about the PCB. */
|
|
struct ssb_boardinfo boardinfo;
|
|
/* Contents of the SPROM. */
|
|
struct ssb_sprom sprom;
|
|
/* If the board has a cardbus slot, this is set to true. */
|
|
bool has_cardbus_slot;
|
|
|
|
#ifdef CONFIG_SSB_EMBEDDED
|
|
/* Lock for GPIO register access. */
|
|
spinlock_t gpio_lock;
|
|
#endif /* EMBEDDED */
|
|
|
|
/* Internal-only stuff follows. Do not touch. */
|
|
struct list_head list;
|
|
#ifdef CONFIG_SSB_DEBUG
|
|
/* Is the bus already powered up? */
|
|
bool powered_up;
|
|
int power_warn_count;
|
|
#endif /* DEBUG */
|
|
};
|
|
|
|
/* The initialization-invariants. */
|
|
struct ssb_init_invariants {
|
|
/* Versioning information about the PCB. */
|
|
struct ssb_boardinfo boardinfo;
|
|
/* The SPROM information. That's either stored in an
|
|
* EEPROM or NVRAM on the board. */
|
|
struct ssb_sprom sprom;
|
|
/* If the board has a cardbus slot, this is set to true. */
|
|
bool has_cardbus_slot;
|
|
};
|
|
/* Type of function to fetch the invariants. */
|
|
typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
|
|
struct ssb_init_invariants *iv);
|
|
|
|
/* Register a SSB system bus. get_invariants() is called after the
|
|
* basic system devices are initialized.
|
|
* The invariants are usually fetched from some NVRAM.
|
|
* Put the invariants into the struct pointed to by iv. */
|
|
extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
|
|
unsigned long baseaddr,
|
|
ssb_invariants_func_t get_invariants);
|
|
#ifdef CONFIG_SSB_PCIHOST
|
|
extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
|
|
struct pci_dev *host_pci);
|
|
#endif /* CONFIG_SSB_PCIHOST */
|
|
#ifdef CONFIG_SSB_PCMCIAHOST
|
|
extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
|
|
struct pcmcia_device *pcmcia_dev,
|
|
unsigned long baseaddr);
|
|
#endif /* CONFIG_SSB_PCMCIAHOST */
|
|
|
|
extern void ssb_bus_unregister(struct ssb_bus *bus);
|
|
|
|
extern u32 ssb_clockspeed(struct ssb_bus *bus);
|
|
|
|
/* Is the device enabled in hardware? */
|
|
int ssb_device_is_enabled(struct ssb_device *dev);
|
|
/* Enable a device and pass device-specific SSB_TMSLOW flags.
|
|
* If no device-specific flags are available, use 0. */
|
|
void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
|
|
/* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
|
|
void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
|
|
|
|
|
|
/* Device MMIO register read/write functions. */
|
|
static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
|
|
{
|
|
return dev->ops->read16(dev, offset);
|
|
}
|
|
static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
|
|
{
|
|
return dev->ops->read32(dev, offset);
|
|
}
|
|
static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
|
|
{
|
|
dev->ops->write16(dev, offset, value);
|
|
}
|
|
static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
|
|
{
|
|
dev->ops->write32(dev, offset, value);
|
|
}
|
|
|
|
|
|
/* Translation (routing) bits that need to be ORed to DMA
|
|
* addresses before they are given to a device. */
|
|
extern u32 ssb_dma_translation(struct ssb_device *dev);
|
|
#define SSB_DMA_TRANSLATION_MASK 0xC0000000
|
|
#define SSB_DMA_TRANSLATION_SHIFT 30
|
|
|
|
extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask);
|
|
|
|
|
|
#ifdef CONFIG_SSB_PCIHOST
|
|
/* PCI-host wrapper driver */
|
|
extern int ssb_pcihost_register(struct pci_driver *driver);
|
|
static inline void ssb_pcihost_unregister(struct pci_driver *driver)
|
|
{
|
|
pci_unregister_driver(driver);
|
|
}
|
|
|
|
static inline
|
|
void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
|
|
{
|
|
if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
|
|
pci_set_power_state(sdev->bus->host_pci, state);
|
|
}
|
|
#else
|
|
static inline void ssb_pcihost_unregister(struct pci_driver *driver)
|
|
{
|
|
}
|
|
|
|
static inline
|
|
void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
|
|
{
|
|
}
|
|
#endif /* CONFIG_SSB_PCIHOST */
|
|
|
|
|
|
/* If a driver is shutdown or suspended, call this to signal
|
|
* that the bus may be completely powered down. SSB will decide,
|
|
* if it's really time to power down the bus, based on if there
|
|
* are other devices that want to run. */
|
|
extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
|
|
/* Before initializing and enabling a device, call this to power-up the bus.
|
|
* If you want to allow use of dynamic-power-control, pass the flag.
|
|
* Otherwise static always-on powercontrol will be used. */
|
|
extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
|
|
|
|
|
|
/* Various helper functions */
|
|
extern u32 ssb_admatch_base(u32 adm);
|
|
extern u32 ssb_admatch_size(u32 adm);
|
|
|
|
|
|
#endif /* LINUX_SSB_H_ */
|