diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/bcmsdh.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/bcmsdh.c | 632 |
1 files changed, 632 insertions, 0 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c new file mode 100644 index 0000000..4c613da --- /dev/null +++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c @@ -0,0 +1,632 @@ +/* + * 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. + */ +/* ****************** BCMSDH Interface Functions *************************** */ + +#include <linux/types.h> +#include <bcmdefs.h> +#include <bcmdevs.h> +#include <bcmendian.h> +#include <bcmutils.h> +#include <hndsoc.h> +#include <siutils.h> +#include <osl.h> + +#include <bcmsdh.h> /* BRCM API for SDIO + clients (such as wl, dhd) */ +#include <bcmsdbus.h> /* common SDIO/controller interface */ +#include <sbsdio.h> /* BRCM sdio device core */ + +#include <sdio.h> /* sdio spec */ + +#define SDIOH_API_ACCESS_RETRY_LIMIT 2 +const uint bcmsdh_msglevel = BCMSDH_ERROR_VAL; + +struct bcmsdh_info { + bool init_success; /* underlying driver successfully attached */ + void *sdioh; /* handler for sdioh */ + u32 vendevid; /* Target Vendor and Device ID on SD bus */ + osl_t *osh; + bool regfail; /* Save status of last + reg_read/reg_write call */ + u32 sbwad; /* Save backplane window address */ +}; +/* local copy of bcm sd handler */ +bcmsdh_info_t *l_bcmsdh; + +#if defined(OOB_INTR_ONLY) && defined(HW_OOB) +extern int sdioh_enable_hw_oob_intr(void *sdioh, bool enable); + +void bcmsdh_enable_hw_oob_intr(bcmsdh_info_t *sdh, bool enable) +{ + sdioh_enable_hw_oob_intr(sdh->sdioh, enable); +} +#endif + +bcmsdh_info_t *bcmsdh_attach(osl_t *osh, void *cfghdl, void **regsva, uint irq) +{ + bcmsdh_info_t *bcmsdh; + + bcmsdh = kzalloc(sizeof(bcmsdh_info_t), GFP_ATOMIC); + if (bcmsdh == NULL) { + BCMSDH_ERROR(("bcmsdh_attach: out of memory")); + return NULL; + } + + /* save the handler locally */ + l_bcmsdh = bcmsdh; + + bcmsdh->sdioh = sdioh_attach(osh, cfghdl, irq); + if (!bcmsdh->sdioh) { + bcmsdh_detach(osh, bcmsdh); + return NULL; + } + + bcmsdh->osh = osh; + bcmsdh->init_success = true; + + *regsva = (u32 *) SI_ENUM_BASE; + + /* Report the BAR, to fix if needed */ + bcmsdh->sbwad = SI_ENUM_BASE; + return bcmsdh; +} + +int bcmsdh_detach(osl_t *osh, void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + if (bcmsdh != NULL) { + if (bcmsdh->sdioh) { + sdioh_detach(osh, bcmsdh->sdioh); + bcmsdh->sdioh = NULL; + } + kfree(bcmsdh); + } + + l_bcmsdh = NULL; + return 0; +} + +int +bcmsdh_iovar_op(void *sdh, const char *name, + void *params, int plen, void *arg, int len, bool set) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + return sdioh_iovar_op(bcmsdh->sdioh, name, params, plen, arg, len, set); +} + +bool bcmsdh_intr_query(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + bool on; + + ASSERT(bcmsdh); + status = sdioh_interrupt_query(bcmsdh->sdioh, &on); + if (SDIOH_API_SUCCESS(status)) + return false; + else + return on; +} + +int bcmsdh_intr_enable(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + ASSERT(bcmsdh); + + status = sdioh_interrupt_set(bcmsdh->sdioh, true); + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +int bcmsdh_intr_disable(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + ASSERT(bcmsdh); + + status = sdioh_interrupt_set(bcmsdh->sdioh, false); + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +int bcmsdh_intr_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + ASSERT(bcmsdh); + + status = sdioh_interrupt_register(bcmsdh->sdioh, fn, argh); + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +int bcmsdh_intr_dereg(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + ASSERT(bcmsdh); + + status = sdioh_interrupt_deregister(bcmsdh->sdioh); + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +#if defined(DHD_DEBUG) +bool bcmsdh_intr_pending(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + ASSERT(sdh); + return sdioh_interrupt_pending(bcmsdh->sdioh); +} +#endif + +int bcmsdh_devremove_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh) +{ + ASSERT(sdh); + + /* don't support yet */ + return BCME_UNSUPPORTED; +} + +u8 bcmsdh_cfg_read(void *sdh, uint fnc_num, u32 addr, int *err) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + s32 retry = 0; +#endif + u8 data = 0; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + do { + if (retry) /* wait for 1 ms till bus get settled down */ + udelay(1000); +#endif + status = + sdioh_cfg_read(bcmsdh->sdioh, fnc_num, addr, + (u8 *) &data); +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + } while (!SDIOH_API_SUCCESS(status) + && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT)); +#endif + if (err) + *err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR); + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, u8data = 0x%x\n", + __func__, fnc_num, addr, data)); + + return data; +} + +void +bcmsdh_cfg_write(void *sdh, uint fnc_num, u32 addr, u8 data, int *err) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + s32 retry = 0; +#endif + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + do { + if (retry) /* wait for 1 ms till bus get settled down */ + udelay(1000); +#endif + status = + sdioh_cfg_write(bcmsdh->sdioh, fnc_num, addr, + (u8 *) &data); +#ifdef SDIOH_API_ACCESS_RETRY_LIMIT + } while (!SDIOH_API_SUCCESS(status) + && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT)); +#endif + if (err) + *err = SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR; + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, u8data = 0x%x\n", + __func__, fnc_num, addr, data)); +} + +u32 bcmsdh_cfg_read_word(void *sdh, uint fnc_num, u32 addr, int *err) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + u32 data = 0; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + + status = + sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_READ, + fnc_num, addr, &data, 4); + + if (err) + *err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR); + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, u32data = 0x%x\n", + __func__, fnc_num, addr, data)); + + return data; +} + +void +bcmsdh_cfg_write_word(void *sdh, uint fnc_num, u32 addr, u32 data, + int *err) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + + status = + sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, + SDIOH_WRITE, fnc_num, addr, &data, 4); + + if (err) + *err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR); + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, u32data = 0x%x\n", + __func__, fnc_num, addr, data)); +} + +int bcmsdh_cis_read(void *sdh, uint func, u8 * cis, uint length) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + + u8 *tmp_buf, *tmp_ptr; + u8 *ptr; + bool ascii = func & ~0xf; + func &= 0x7; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + ASSERT(cis); + ASSERT(length <= SBSDIO_CIS_SIZE_LIMIT); + + status = sdioh_cis_read(bcmsdh->sdioh, func, cis, length); + + if (ascii) { + /* Move binary bits to tmp and format them + into the provided buffer. */ + tmp_buf = kmalloc(length, GFP_ATOMIC); + if (tmp_buf == NULL) { + BCMSDH_ERROR(("%s: out of memory\n", __func__)); + return BCME_NOMEM; + } + bcopy(cis, tmp_buf, length); + for (tmp_ptr = tmp_buf, ptr = cis; ptr < (cis + length - 4); + tmp_ptr++) { + ptr += sprintf((char *)ptr, "%.2x ", *tmp_ptr & 0xff); + if ((((tmp_ptr - tmp_buf) + 1) & 0xf) == 0) + ptr += sprintf((char *)ptr, "\n"); + } + kfree(tmp_buf); + } + + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +static int bcmsdhsdio_set_sbaddr_window(void *sdh, u32 address) +{ + int err = 0; + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW, + (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err); + if (!err) + bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID, + (address >> 16) & SBSDIO_SBADDRMID_MASK, &err); + if (!err) + bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH, + (address >> 24) & SBSDIO_SBADDRHIGH_MASK, + &err); + + return err; +} + +u32 bcmsdh_reg_read(void *sdh, u32 addr, uint size) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + u32 word = 0; + uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; + + BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, ", __func__, addr)); + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + + if (bar0 != bcmsdh->sbwad) { + if (bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)) + return 0xFFFFFFFF; + + bcmsdh->sbwad = bar0; + } + + addr &= SBSDIO_SB_OFT_ADDR_MASK; + if (size == 4) + addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; + + status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, + SDIOH_READ, SDIO_FUNC_1, addr, &word, size); + + bcmsdh->regfail = !(SDIOH_API_SUCCESS(status)); + + BCMSDH_INFO(("u32data = 0x%x\n", word)); + + /* if ok, return appropriately masked word */ + if (SDIOH_API_SUCCESS(status)) { + switch (size) { + case sizeof(u8): + return word & 0xff; + case sizeof(u16): + return word & 0xffff; + case sizeof(u32): + return word; + default: + bcmsdh->regfail = true; + + } + } + + /* otherwise, bad sdio access or invalid size */ + BCMSDH_ERROR(("%s: error reading addr 0x%04x size %d\n", __func__, + addr, size)); + return 0xFFFFFFFF; +} + +u32 bcmsdh_reg_write(void *sdh, u32 addr, uint size, u32 data) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; + int err = 0; + + BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, uint%ddata = 0x%x\n", + __func__, addr, size * 8, data)); + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + ASSERT(bcmsdh->init_success); + + if (bar0 != bcmsdh->sbwad) { + err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0); + if (err) + return err; + + bcmsdh->sbwad = bar0; + } + + addr &= SBSDIO_SB_OFT_ADDR_MASK; + if (size == 4) + addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; + status = + sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, + SDIOH_WRITE, SDIO_FUNC_1, addr, &data, size); + bcmsdh->regfail = !(SDIOH_API_SUCCESS(status)); + + if (SDIOH_API_SUCCESS(status)) + return 0; + + BCMSDH_ERROR(("%s: error writing 0x%08x to addr 0x%04x size %d\n", + __func__, data, addr, size)); + return 0xFFFFFFFF; +} + +bool bcmsdh_regfail(void *sdh) +{ + return ((bcmsdh_info_t *) sdh)->regfail; +} + +int +bcmsdh_recv_buf(void *sdh, u32 addr, uint fn, uint flags, + u8 *buf, uint nbytes, void *pkt, + bcmsdh_cmplt_fn_t complete, void *handle) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + uint incr_fix; + uint width; + uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; + int err = 0; + + ASSERT(bcmsdh); + ASSERT(bcmsdh->init_success); + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n", + __func__, fn, addr, nbytes)); + + /* Async not implemented yet */ + ASSERT(!(flags & SDIO_REQ_ASYNC)); + if (flags & SDIO_REQ_ASYNC) + return BCME_UNSUPPORTED; + + if (bar0 != bcmsdh->sbwad) { + err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0); + if (err) + return err; + + bcmsdh->sbwad = bar0; + } + + addr &= SBSDIO_SB_OFT_ADDR_MASK; + + incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; + width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; + if (width == 4) + addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; + + status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix, + SDIOH_READ, fn, addr, width, nbytes, buf, + pkt); + + return SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR; +} + +int +bcmsdh_send_buf(void *sdh, u32 addr, uint fn, uint flags, + u8 *buf, uint nbytes, void *pkt, + bcmsdh_cmplt_fn_t complete, void *handle) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + uint incr_fix; + uint width; + uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK; + int err = 0; + + ASSERT(bcmsdh); + ASSERT(bcmsdh->init_success); + + BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n", + __func__, fn, addr, nbytes)); + + /* Async not implemented yet */ + ASSERT(!(flags & SDIO_REQ_ASYNC)); + if (flags & SDIO_REQ_ASYNC) + return BCME_UNSUPPORTED; + + if (bar0 != bcmsdh->sbwad) { + err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0); + if (err) + return err; + + bcmsdh->sbwad = bar0; + } + + addr &= SBSDIO_SB_OFT_ADDR_MASK; + + incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC; + width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; + if (width == 4) + addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; + + status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix, + SDIOH_WRITE, fn, addr, width, nbytes, buf, + pkt); + + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +int bcmsdh_rwdata(void *sdh, uint rw, u32 addr, u8 *buf, uint nbytes) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + SDIOH_API_RC status; + + ASSERT(bcmsdh); + ASSERT(bcmsdh->init_success); + ASSERT((addr & SBSDIO_SBWINDOW_MASK) == 0); + + addr &= SBSDIO_SB_OFT_ADDR_MASK; + addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; + + status = + sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, SDIOH_DATA_INC, + (rw ? SDIOH_WRITE : SDIOH_READ), SDIO_FUNC_1, + addr, 4, nbytes, buf, NULL); + + return SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR; +} + +int bcmsdh_abort(void *sdh, uint fn) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + return sdioh_abort(bcmsdh->sdioh, fn); +} + +int bcmsdh_start(void *sdh, int stage) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + return sdioh_start(bcmsdh->sdioh, stage); +} + +int bcmsdh_stop(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + return sdioh_stop(bcmsdh->sdioh); +} + +int bcmsdh_query_device(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + bcmsdh->vendevid = (VENDOR_BROADCOM << 16) | 0; + return bcmsdh->vendevid; +} + +uint bcmsdh_query_iofnum(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + return sdioh_query_iofnum(bcmsdh->sdioh); +} + +int bcmsdh_reset(bcmsdh_info_t *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + return sdioh_sdio_reset(bcmsdh->sdioh); +} + +void *bcmsdh_get_sdioh(bcmsdh_info_t *sdh) +{ + ASSERT(sdh); + return sdh->sdioh; +} + +/* Function to pass device-status bits to DHD. */ +u32 bcmsdh_get_dstatus(void *sdh) +{ + return 0; +} + +u32 bcmsdh_cur_sbwad(void *sdh) +{ + bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *) sdh; + + if (!bcmsdh) + bcmsdh = l_bcmsdh; + + return bcmsdh->sbwad; +} + +void bcmsdh_chipinfo(void *sdh, u32 chip, u32 chiprev) +{ + return; +} |
