diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h new file mode 100644 index 000000000000..726fa8981113 --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h @@ -0,0 +1,252 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _BRCM_SDH_H_ +#define _BRCM_SDH_H_ + +#include <linux/skbuff.h> + +#define SDIO_FUNC_0 0 +#define SDIO_FUNC_1 1 +#define SDIO_FUNC_2 2 + +#define SDIOD_FBR_SIZE 0x100 + +/* io_en */ +#define SDIO_FUNC_ENABLE_1 0x02 +#define SDIO_FUNC_ENABLE_2 0x04 + +/* io_rdys */ +#define SDIO_FUNC_READY_1 0x02 +#define SDIO_FUNC_READY_2 0x04 + +/* intr_status */ +#define INTR_STATUS_FUNC1 0x2 +#define INTR_STATUS_FUNC2 0x4 + +/* Maximum number of I/O funcs */ +#define SDIOD_MAX_IOFUNCS 7 + +/* as of sdiod rev 0, supports 3 functions */ +#define SBSDIO_NUM_FUNCTION 3 + +/* function 1 miscellaneous registers */ + +/* sprom command and status */ +#define SBSDIO_SPROM_CS 0x10000 +/* sprom info register */ +#define SBSDIO_SPROM_INFO 0x10001 +/* sprom indirect access data byte 0 */ +#define SBSDIO_SPROM_DATA_LOW 0x10002 +/* sprom indirect access data byte 1 */ +#define SBSDIO_SPROM_DATA_HIGH 0x10003 +/* sprom indirect access addr byte 0 */ +#define SBSDIO_SPROM_ADDR_LOW 0x10004 +/* sprom indirect access addr byte 0 */ +#define SBSDIO_SPROM_ADDR_HIGH 0x10005 +/* xtal_pu (gpio) output */ +#define SBSDIO_CHIP_CTRL_DATA 0x10006 +/* xtal_pu (gpio) enable */ +#define SBSDIO_CHIP_CTRL_EN 0x10007 +/* rev < 7, watermark for sdio device */ +#define SBSDIO_WATERMARK 0x10008 +/* control busy signal generation */ +#define SBSDIO_DEVICE_CTL 0x10009 + +/* SB Address Window Low (b15) */ +#define SBSDIO_FUNC1_SBADDRLOW 0x1000A +/* SB Address Window Mid (b23:b16) */ +#define SBSDIO_FUNC1_SBADDRMID 0x1000B +/* SB Address Window High (b31:b24) */ +#define SBSDIO_FUNC1_SBADDRHIGH 0x1000C +/* Frame Control (frame term/abort) */ +#define SBSDIO_FUNC1_FRAMECTRL 0x1000D +/* ChipClockCSR (ALP/HT ctl/status) */ +#define SBSDIO_FUNC1_CHIPCLKCSR 0x1000E +/* SdioPullUp (on cmd, d0-d2) */ +#define SBSDIO_FUNC1_SDIOPULLUP 0x1000F +/* Write Frame Byte Count Low */ +#define SBSDIO_FUNC1_WFRAMEBCLO 0x10019 +/* Write Frame Byte Count High */ +#define SBSDIO_FUNC1_WFRAMEBCHI 0x1001A +/* Read Frame Byte Count Low */ +#define SBSDIO_FUNC1_RFRAMEBCLO 0x1001B +/* Read Frame Byte Count High */ +#define SBSDIO_FUNC1_RFRAMEBCHI 0x1001C + +#define SBSDIO_FUNC1_MISC_REG_START 0x10000 /* f1 misc register start */ +#define SBSDIO_FUNC1_MISC_REG_LIMIT 0x1001C /* f1 misc register end */ + +/* function 1 OCP space */ + +/* sb offset addr is <= 15 bits, 32k */ +#define SBSDIO_SB_OFT_ADDR_MASK 0x07FFF +#define SBSDIO_SB_OFT_ADDR_LIMIT 0x08000 +/* with b15, maps to 32-bit SB access */ +#define SBSDIO_SB_ACCESS_2_4B_FLAG 0x08000 + +/* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */ + +#define SBSDIO_SBADDRLOW_MASK 0x80 /* Valid bits in SBADDRLOW */ +#define SBSDIO_SBADDRMID_MASK 0xff /* Valid bits in SBADDRMID */ +#define SBSDIO_SBADDRHIGH_MASK 0xffU /* Valid bits in SBADDRHIGH */ +/* Address bits from SBADDR regs */ +#define SBSDIO_SBWINDOW_MASK 0xffff8000 + +#define SDIOH_READ 0 /* Read request */ +#define SDIOH_WRITE 1 /* Write request */ + +#define SDIOH_DATA_FIX 0 /* Fixed addressing */ +#define SDIOH_DATA_INC 1 /* Incremental addressing */ + +/* internal return code */ +#define SUCCESS 0 +#define ERROR 1 + +struct brcmf_sdreg { + int func; + int offset; + int value; +}; + +struct brcmf_sdio_dev { + struct sdio_func *func[SDIO_MAX_FUNCS]; + u8 num_funcs; /* Supported funcs on client */ + u32 func_cis_ptr[SDIOD_MAX_IOFUNCS]; + u32 sbwad; /* Save backplane window address */ + bool regfail; /* status of last reg_r/w call */ + void *bus; + atomic_t suspend; /* suspend flag */ + wait_queue_head_t request_byte_wait; + wait_queue_head_t request_word_wait; + wait_queue_head_t request_packet_wait; + wait_queue_head_t request_buffer_wait; + +}; + +/* Register/deregister device interrupt handler. */ +extern int +brcmf_sdcard_intr_reg(struct brcmf_sdio_dev *sdiodev); + +extern int brcmf_sdcard_intr_dereg(struct brcmf_sdio_dev *sdiodev); + +/* Access SDIO address space (e.g. CCCR) using CMD52 (single-byte interface). + * fn: function number + * addr: unmodified SDIO-space address + * data: data byte to write + * err: pointer to error code (or NULL) + */ +extern u8 brcmf_sdcard_cfg_read(struct brcmf_sdio_dev *sdiodev, uint func, + u32 addr, int *err); +extern void brcmf_sdcard_cfg_write(struct brcmf_sdio_dev *sdiodev, uint func, + u32 addr, u8 data, int *err); + +/* Synchronous access to device (client) core registers via CMD53 to F1. + * addr: backplane address (i.e. >= regsva from attach) + * size: register width in bytes (2 or 4) + * data: data for register write + */ +extern u32 +brcmf_sdcard_reg_read(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size); + +extern u32 +brcmf_sdcard_reg_write(struct brcmf_sdio_dev *sdiodev, u32 addr, uint size, + u32 data); + +/* Indicate if last reg read/write failed */ +extern bool brcmf_sdcard_regfail(struct brcmf_sdio_dev *sdiodev); + +/* Buffer transfer to/from device (client) core via cmd53. + * fn: function number + * addr: backplane address (i.e. >= regsva from attach) + * flags: backplane width, address increment, sync/async + * buf: pointer to memory data buffer + * nbytes: number of bytes to transfer to/from buf + * pkt: pointer to packet associated with buf (if any) + * complete: callback function for command completion (async only) + * handle: handle for completion callback (first arg in callback) + * Returns 0 or error code. + * NOTE: Async operation is not currently supported. + */ +extern int +brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, + uint flags, u8 *buf, uint nbytes, struct sk_buff *pkt); +extern int +brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, + uint flags, u8 *buf, uint nbytes, struct sk_buff *pkt); + +/* Flags bits */ + +/* Four-byte target (backplane) width (vs. two-byte) */ +#define SDIO_REQ_4BYTE 0x1 +/* Fixed address (FIFO) (vs. incrementing address) */ +#define SDIO_REQ_FIXED 0x2 +/* Async request (vs. sync request) */ +#define SDIO_REQ_ASYNC 0x4 + +/* Read/write to memory block (F1, no FIFO) via CMD53 (sync only). + * rw: read or write (0/1) + * addr: direct SDIO address + * buf: pointer to memory data buffer + * nbytes: number of bytes to transfer to/from buf + * Returns 0 or error code. + */ +extern int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, + u32 addr, u8 *buf, uint nbytes); + +/* Issue an abort to the specified function */ +extern int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn); + +/* platform specific/high level functions */ +extern int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev); +extern int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev); + +extern int brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, + u32 address); + +/* attach, return handler on success, NULL if failed. + * The handler shall be provided by all subsequent calls. No local cache + * cfghdl points to the starting address of pci device mapped memory + */ +extern int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev); +extern void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev); + +/* read or write one byte using cmd52 */ +extern int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, + uint fnc, uint addr, u8 *byte); + +/* read or write 2/4 bytes using cmd53 */ +extern int +brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev, + uint rw, uint fnc, uint addr, + u32 *word, uint nbyte); + +/* read or write any buffer using cmd53 */ +extern int +brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev, + uint fix_inc, uint rw, uint fnc_num, + u32 addr, uint regwidth, + u32 buflen, u8 *buffer, struct sk_buff *pkt); + +/* Watchdog timer interface for pm ops */ +extern void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev, + bool enable); + +extern void *brcmf_sdbrcm_probe(u16 bus_no, u16 slot, u16 func, uint bustype, + u32 regsva, struct brcmf_sdio_dev *sdiodev); +extern void brcmf_sdbrcm_disconnect(void *ptr); +extern void brcmf_sdbrcm_isr(void *arg); +#endif /* _BRCM_SDH_H_ */ |