diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c | 1239 |
1 files changed, 0 insertions, 1239 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c deleted file mode 100644 index c0ffbd35e0ca..000000000000 --- a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c +++ /dev/null @@ -1,1239 +0,0 @@ -/* - * 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. - */ -#include <linux/types.h> -#include <linux/netdevice.h> -#include <bcmdefs.h> -#include <bcmdevs.h> -#include <bcmutils.h> -#include <sdio.h> /* SDIO Device and Protocol Specs */ -#include <sdioh.h> /* SDIO Host Controller Specification */ -#include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */ -#include <sdiovar.h> /* ioctl/iovars */ - -#include <linux/mmc/core.h> -#include <linux/mmc/sdio_func.h> -#include <linux/mmc/sdio_ids.h> -#include <linux/suspend.h> - -#include <dngl_stats.h> -#include <dhd.h> - -#include "bcmsdh_sdmmc.h" - -extern int sdio_function_init(void); -extern void sdio_function_cleanup(void); - -#if !defined(OOB_INTR_ONLY) -static void IRQHandler(struct sdio_func *func); -static void IRQHandlerF2(struct sdio_func *func); -#endif /* !defined(OOB_INTR_ONLY) */ -static int sdioh_sdmmc_get_cisaddr(sdioh_info_t *sd, u32 regaddr); -extern int sdio_reset_comm(struct mmc_card *card); - -extern PBCMSDH_SDMMC_INSTANCE gInstance; - -uint sd_sdmode = SDIOH_MODE_SD4; /* Use SD4 mode by default */ -uint sd_f2_blocksize = 512; /* Default blocksize */ - -uint sd_divisor = 2; /* Default 48MHz/2 = 24MHz */ - -uint sd_power = 1; /* Default to SD Slot powered ON */ -uint sd_clock = 1; /* Default to SD Clock turned ON */ -uint sd_hiok = false; /* Don't use hi-speed mode by default */ -uint sd_msglevel = 0x01; -uint sd_use_dma = true; -DHD_PM_RESUME_WAIT_INIT(sdioh_request_byte_wait); -DHD_PM_RESUME_WAIT_INIT(sdioh_request_word_wait); -DHD_PM_RESUME_WAIT_INIT(sdioh_request_packet_wait); -DHD_PM_RESUME_WAIT_INIT(sdioh_request_buffer_wait); - -#define DMA_ALIGN_MASK 0x03 - -int sdioh_sdmmc_card_regread(sdioh_info_t *sd, int func, u32 regaddr, - int regsize, u32 *data); - -void sdioh_sdio_set_host_pm_flags(int flag) -{ - if (sdio_set_host_pm_flags(gInstance->func[1], flag)) - printk(KERN_ERR "%s: Failed to set pm_flags 0x%08x\n",\ - __func__, (unsigned int)flag); -} - -static int sdioh_sdmmc_card_enablefuncs(sdioh_info_t *sd) -{ - int err_ret; - u32 fbraddr; - u8 func; - - sd_trace(("%s\n", __func__)); - - /* Get the Card's common CIS address */ - sd->com_cis_ptr = sdioh_sdmmc_get_cisaddr(sd, SDIOD_CCCR_CISPTR_0); - sd->func_cis_ptr[0] = sd->com_cis_ptr; - sd_info(("%s: Card's Common CIS Ptr = 0x%x\n", __func__, - sd->com_cis_ptr)); - - /* Get the Card's function CIS (for each function) */ - for (fbraddr = SDIOD_FBR_STARTADDR, func = 1; - func <= sd->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) { - sd->func_cis_ptr[func] = - sdioh_sdmmc_get_cisaddr(sd, SDIOD_FBR_CISPTR_0 + fbraddr); - sd_info(("%s: Function %d CIS Ptr = 0x%x\n", __func__, func, - sd->func_cis_ptr[func])); - } - - sd->func_cis_ptr[0] = sd->com_cis_ptr; - sd_info(("%s: Card's Common CIS Ptr = 0x%x\n", __func__, - sd->com_cis_ptr)); - - /* Enable Function 1 */ - sdio_claim_host(gInstance->func[1]); - err_ret = sdio_enable_func(gInstance->func[1]); - sdio_release_host(gInstance->func[1]); - if (err_ret) { - sd_err(("bcmsdh_sdmmc: Failed to enable F1 Err: 0x%08x", - err_ret)); - } - - return false; -} - -/* - * Public entry points & extern's - */ -sdioh_info_t *sdioh_attach(void *bar0, uint irq) -{ - sdioh_info_t *sd; - int err_ret; - - sd_trace(("%s\n", __func__)); - - if (gInstance == NULL) { - sd_err(("%s: SDIO Device not present\n", __func__)); - return NULL; - } - - sd = kzalloc(sizeof(sdioh_info_t), GFP_ATOMIC); - if (sd == NULL) { - sd_err(("sdioh_attach: out of memory\n")); - return NULL; - } - if (sdioh_sdmmc_osinit(sd) != 0) { - sd_err(("%s:sdioh_sdmmc_osinit() failed\n", __func__)); - kfree(sd); - return NULL; - } - - sd->num_funcs = 2; - sd->sd_blockmode = true; - sd->use_client_ints = true; - sd->client_block_size[0] = 64; - - gInstance->sd = sd; - - /* Claim host controller */ - sdio_claim_host(gInstance->func[1]); - - sd->client_block_size[1] = 64; - err_ret = sdio_set_block_size(gInstance->func[1], 64); - if (err_ret) - sd_err(("bcmsdh_sdmmc: Failed to set F1 blocksize\n")); - - /* Release host controller F1 */ - sdio_release_host(gInstance->func[1]); - - if (gInstance->func[2]) { - /* Claim host controller F2 */ - sdio_claim_host(gInstance->func[2]); - - sd->client_block_size[2] = sd_f2_blocksize; - err_ret = - sdio_set_block_size(gInstance->func[2], sd_f2_blocksize); - if (err_ret) - sd_err(("bcmsdh_sdmmc: Failed to set F2 blocksize " - "to %d\n", sd_f2_blocksize)); - - /* Release host controller F2 */ - sdio_release_host(gInstance->func[2]); - } - - sdioh_sdmmc_card_enablefuncs(sd); - - sd_trace(("%s: Done\n", __func__)); - return sd; -} - -extern SDIOH_API_RC sdioh_detach(sdioh_info_t *sd) -{ - sd_trace(("%s\n", __func__)); - - if (sd) { - - /* Disable Function 2 */ - sdio_claim_host(gInstance->func[2]); - sdio_disable_func(gInstance->func[2]); - sdio_release_host(gInstance->func[2]); - - /* Disable Function 1 */ - sdio_claim_host(gInstance->func[1]); - sdio_disable_func(gInstance->func[1]); - sdio_release_host(gInstance->func[1]); - - /* deregister irq */ - sdioh_sdmmc_osfree(sd); - - kfree(sd); - } - return SDIOH_API_RC_SUCCESS; -} - -#if defined(OOB_INTR_ONLY) && defined(HW_OOB) - -extern SDIOH_API_RC sdioh_enable_func_intr(void) -{ - u8 reg; - int err; - - if (gInstance->func[0]) { - sdio_claim_host(gInstance->func[0]); - - reg = sdio_readb(gInstance->func[0], SDIOD_CCCR_INTEN, &err); - if (err) { - sd_err(("%s: error for read SDIO_CCCR_IENx : 0x%x\n", - __func__, err)); - sdio_release_host(gInstance->func[0]); - return SDIOH_API_RC_FAIL; - } - - /* Enable F1 and F2 interrupts, set master enable */ - reg |= - (INTR_CTL_FUNC1_EN | INTR_CTL_FUNC2_EN | - INTR_CTL_MASTER_EN); - - sdio_writeb(gInstance->func[0], reg, SDIOD_CCCR_INTEN, &err); - sdio_release_host(gInstance->func[0]); - - if (err) { - sd_err(("%s: error for write SDIO_CCCR_IENx : 0x%x\n", - __func__, err)); - return SDIOH_API_RC_FAIL; - } - } - - return SDIOH_API_RC_SUCCESS; -} - -extern SDIOH_API_RC sdioh_disable_func_intr(void) -{ - u8 reg; - int err; - - if (gInstance->func[0]) { - sdio_claim_host(gInstance->func[0]); - reg = sdio_readb(gInstance->func[0], SDIOD_CCCR_INTEN, &err); - if (err) { - sd_err(("%s: error for read SDIO_CCCR_IENx : 0x%x\n", - __func__, err)); - sdio_release_host(gInstance->func[0]); - return SDIOH_API_RC_FAIL; - } - - reg &= ~(INTR_CTL_FUNC1_EN | INTR_CTL_FUNC2_EN); - /* Disable master interrupt with the last function interrupt */ - if (!(reg & 0xFE)) - reg = 0; - sdio_writeb(gInstance->func[0], reg, SDIOD_CCCR_INTEN, &err); - - sdio_release_host(gInstance->func[0]); - if (err) { - sd_err(("%s: error for write SDIO_CCCR_IENx : 0x%x\n", - __func__, err)); - return SDIOH_API_RC_FAIL; - } - } - return SDIOH_API_RC_SUCCESS; -} -#endif /* defined(OOB_INTR_ONLY) && defined(HW_OOB) */ - -/* Configure callback to client when we receive client interrupt */ -extern SDIOH_API_RC -sdioh_interrupt_register(sdioh_info_t *sd, sdioh_cb_fn_t fn, void *argh) -{ - sd_trace(("%s: Entering\n", __func__)); - if (fn == NULL) { - sd_err(("%s: interrupt handler is NULL, not registering\n", - __func__)); - return SDIOH_API_RC_FAIL; - } -#if !defined(OOB_INTR_ONLY) - sd->intr_handler = fn; - sd->intr_handler_arg = argh; - sd->intr_handler_valid = true; - - /* register and unmask irq */ - if (gInstance->func[2]) { - sdio_claim_host(gInstance->func[2]); - sdio_claim_irq(gInstance->func[2], IRQHandlerF2); - sdio_release_host(gInstance->func[2]); - } - - if (gInstance->func[1]) { - sdio_claim_host(gInstance->func[1]); - sdio_claim_irq(gInstance->func[1], IRQHandler); - sdio_release_host(gInstance->func[1]); - } -#elif defined(HW_OOB) - sdioh_enable_func_intr(); -#endif /* defined(OOB_INTR_ONLY) */ - return SDIOH_API_RC_SUCCESS; -} - -extern SDIOH_API_RC sdioh_interrupt_deregister(sdioh_info_t *sd) -{ - sd_trace(("%s: Entering\n", __func__)); - -#if !defined(OOB_INTR_ONLY) - if (gInstance->func[1]) { - /* register and unmask irq */ - sdio_claim_host(gInstance->func[1]); - sdio_release_irq(gInstance->func[1]); - sdio_release_host(gInstance->func[1]); - } - - if (gInstance->func[2]) { - /* Claim host controller F2 */ - sdio_claim_host(gInstance->func[2]); - sdio_release_irq(gInstance->func[2]); - /* Release host controller F2 */ - sdio_release_host(gInstance->func[2]); - } - - sd->intr_handler_valid = false; - sd->intr_handler = NULL; - sd->intr_handler_arg = NULL; -#elif defined(HW_OOB) - sdioh_disable_func_intr(); -#endif /* !defined(OOB_INTR_ONLY) */ - return SDIOH_API_RC_SUCCESS; -} - -extern SDIOH_API_RC sdioh_interrupt_query(sdioh_info_t *sd, bool *onoff) -{ - sd_trace(("%s: Entering\n", __func__)); - *onoff = sd->client_intr_enabled; - return SDIOH_API_RC_SUCCESS; -} - -#if defined(DHD_DEBUG) -extern bool sdioh_interrupt_pending(sdioh_info_t *sd) -{ - return 0; -} -#endif - -uint sdioh_query_iofnum(sdioh_info_t *sd) -{ - return sd->num_funcs; -} - -/* IOVar table */ -enum { - IOV_MSGLEVEL = 1, - IOV_BLOCKMODE, - IOV_BLOCKSIZE, - IOV_DMA, - IOV_USEINTS, - IOV_NUMINTS, - IOV_NUMLOCALINTS, - IOV_HOSTREG, - IOV_DEVREG, - IOV_DIVISOR, - IOV_SDMODE, - IOV_HISPEED, - IOV_HCIREGS, - IOV_POWER, - IOV_CLOCK, - IOV_RXCHAIN -}; - -const bcm_iovar_t sdioh_iovars[] = { - {"sd_msglevel", IOV_MSGLEVEL, 0, IOVT_UINT32, 0}, - {"sd_blockmode", IOV_BLOCKMODE, 0, IOVT_BOOL, 0}, - {"sd_blocksize", IOV_BLOCKSIZE, 0, IOVT_UINT32, 0},/* ((fn << 16) | - size) */ - {"sd_dma", IOV_DMA, 0, IOVT_BOOL, 0}, - {"sd_ints", IOV_USEINTS, 0, IOVT_BOOL, 0}, - {"sd_numints", IOV_NUMINTS, 0, IOVT_UINT32, 0}, - {"sd_numlocalints", IOV_NUMLOCALINTS, 0, IOVT_UINT32, 0}, - {"sd_hostreg", IOV_HOSTREG, 0, IOVT_BUFFER, sizeof(sdreg_t)} - , - {"sd_devreg", IOV_DEVREG, 0, IOVT_BUFFER, sizeof(sdreg_t)} - , - {"sd_divisor", IOV_DIVISOR, 0, IOVT_UINT32, 0} - , - {"sd_power", IOV_POWER, 0, IOVT_UINT32, 0} - , - {"sd_clock", IOV_CLOCK, 0, IOVT_UINT32, 0} - , - {"sd_mode", IOV_SDMODE, 0, IOVT_UINT32, 100} - , - {"sd_highspeed", IOV_HISPEED, 0, IOVT_UINT32, 0} - , - {"sd_rxchain", IOV_RXCHAIN, 0, IOVT_BOOL, 0} - , - {NULL, 0, 0, 0, 0} -}; - -int -sdioh_iovar_op(sdioh_info_t *si, const char *name, - void *params, int plen, void *arg, int len, bool set) -{ - const bcm_iovar_t *vi = NULL; - int bcmerror = 0; - int val_size; - s32 int_val = 0; - bool bool_val; - u32 actionid; - - ASSERT(name); - ASSERT(len >= 0); - - /* Get must have return space; Set does not take qualifiers */ - ASSERT(set || (arg && len)); - ASSERT(!set || (!params && !plen)); - - sd_trace(("%s: Enter (%s %s)\n", __func__, (set ? "set" : "get"), - name)); - - vi = bcm_iovar_lookup(sdioh_iovars, name); - if (vi == NULL) { - bcmerror = -ENOTSUPP; - goto exit; - } - - bcmerror = bcm_iovar_lencheck(vi, arg, len, set); - if (bcmerror != 0) - goto exit; - - /* Set up params so get and set can share the convenience variables */ - if (params == NULL) { - params = arg; - plen = len; - } - - if (vi->type == IOVT_VOID) - val_size = 0; - else if (vi->type == IOVT_BUFFER) - val_size = len; - else - val_size = sizeof(int); - - if (plen >= (int)sizeof(int_val)) - memcpy(&int_val, params, sizeof(int_val)); - - bool_val = (int_val != 0) ? true : false; - - actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid); - switch (actionid) { - case IOV_GVAL(IOV_MSGLEVEL): - int_val = (s32) sd_msglevel; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_MSGLEVEL): - sd_msglevel = int_val; - break; - - case IOV_GVAL(IOV_BLOCKMODE): - int_val = (s32) si->sd_blockmode; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_BLOCKMODE): - si->sd_blockmode = (bool) int_val; - /* Haven't figured out how to make non-block mode with DMA */ - break; - - case IOV_GVAL(IOV_BLOCKSIZE): - if ((u32) int_val > si->num_funcs) { - bcmerror = -EINVAL; - break; - } - int_val = (s32) si->client_block_size[int_val]; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_BLOCKSIZE): - { - uint func = ((u32) int_val >> 16); - uint blksize = (u16) int_val; - uint maxsize; - - if (func > si->num_funcs) { - bcmerror = -EINVAL; - break; - } - - switch (func) { - case 0: - maxsize = 32; - break; - case 1: - maxsize = BLOCK_SIZE_4318; - break; - case 2: - maxsize = BLOCK_SIZE_4328; - break; - default: - maxsize = 0; - } - if (blksize > maxsize) { - bcmerror = -EINVAL; - break; - } - if (!blksize) - blksize = maxsize; - - /* Now set it */ - si->client_block_size[func] = blksize; - - break; - } - - case IOV_GVAL(IOV_RXCHAIN): - int_val = false; - memcpy(arg, &int_val, val_size); - break; - - case IOV_GVAL(IOV_DMA): - int_val = (s32) si->sd_use_dma; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_DMA): - si->sd_use_dma = (bool) int_val; - break; - - case IOV_GVAL(IOV_USEINTS): - int_val = (s32) si->use_client_ints; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_USEINTS): - si->use_client_ints = (bool) int_val; - if (si->use_client_ints) - si->intmask |= CLIENT_INTR; - else - si->intmask &= ~CLIENT_INTR; - - break; - - case IOV_GVAL(IOV_DIVISOR): - int_val = (u32) sd_divisor; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_DIVISOR): - sd_divisor = int_val; - break; - - case IOV_GVAL(IOV_POWER): - int_val = (u32) sd_power; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_POWER): - sd_power = int_val; - break; - - case IOV_GVAL(IOV_CLOCK): - int_val = (u32) sd_clock; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_CLOCK): - sd_clock = int_val; - break; - - case IOV_GVAL(IOV_SDMODE): - int_val = (u32) sd_sdmode; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_SDMODE): - sd_sdmode = int_val; - break; - - case IOV_GVAL(IOV_HISPEED): - int_val = (u32) sd_hiok; - memcpy(arg, &int_val, val_size); - break; - - case IOV_SVAL(IOV_HISPEED): - sd_hiok = int_val; - break; - - case IOV_GVAL(IOV_NUMINTS): - int_val = (s32) si->intrcount; - memcpy(arg, &int_val, val_size); - break; - - case IOV_GVAL(IOV_NUMLOCALINTS): - int_val = (s32) 0; - memcpy(arg, &int_val, val_size); - break; - - case IOV_GVAL(IOV_HOSTREG): - { - sdreg_t *sd_ptr = (sdreg_t *) params; - - if (sd_ptr->offset < SD_SysAddr - || sd_ptr->offset > SD_MaxCurCap) { - sd_err(("%s: bad offset 0x%x\n", __func__, - sd_ptr->offset)); - bcmerror = -EINVAL; - break; - } - - sd_trace(("%s: rreg%d at offset %d\n", __func__, - (sd_ptr->offset & 1) ? 8 - : ((sd_ptr->offset & 2) ? 16 : 32), - sd_ptr->offset)); - if (sd_ptr->offset & 1) - int_val = 8; /* sdioh_sdmmc_rreg8(si, - sd_ptr->offset); */ - else if (sd_ptr->offset & 2) - int_val = 16; /* sdioh_sdmmc_rreg16(si, - sd_ptr->offset); */ - else - int_val = 32; /* sdioh_sdmmc_rreg(si, - sd_ptr->offset); */ - - memcpy(arg, &int_val, sizeof(int_val)); - break; - } - - case IOV_SVAL(IOV_HOSTREG): - { - sdreg_t *sd_ptr = (sdreg_t *) params; - - if (sd_ptr->offset < SD_SysAddr - || sd_ptr->offset > SD_MaxCurCap) { - sd_err(("%s: bad offset 0x%x\n", __func__, - sd_ptr->offset)); - bcmerror = -EINVAL; - break; - } - - sd_trace(("%s: wreg%d value 0x%08x at offset %d\n", - __func__, sd_ptr->value, - (sd_ptr->offset & 1) ? 8 - : ((sd_ptr->offset & 2) ? 16 : 32), - sd_ptr->offset)); - break; - } - - case IOV_GVAL(IOV_DEVREG): - { - sdreg_t *sd_ptr = (sdreg_t *) params; - u8 data = 0; - - if (sdioh_cfg_read - (si, sd_ptr->func, sd_ptr->offset, &data)) { - bcmerror = -EIO; - break; - } - - int_val = (int)data; - memcpy(arg, &int_val, sizeof(int_val)); - break; - } - - case IOV_SVAL(IOV_DEVREG): - { - sdreg_t *sd_ptr = (sdreg_t *) params; - u8 data = (u8) sd_ptr->value; - - if (sdioh_cfg_write - (si, sd_ptr->func, sd_ptr->offset, &data)) { - bcmerror = -EIO; - break; - } - break; - } - - default: - bcmerror = -ENOTSUPP; - break; - } -exit: - - return bcmerror; -} - -#if defined(OOB_INTR_ONLY) && defined(HW_OOB) - -SDIOH_API_RC sdioh_enable_hw_oob_intr(sdioh_info_t *sd, bool enable) -{ - SDIOH_API_RC status; - u8 data; - - if (enable) - data = 3; /* enable hw oob interrupt */ - else - data = 4; /* disable hw oob interrupt */ - data |= 4; /* Active HIGH */ - - status = sdioh_request_byte(sd, SDIOH_WRITE, 0, 0xf2, &data); - return status; -} -#endif /* defined(OOB_INTR_ONLY) && defined(HW_OOB) */ - -extern SDIOH_API_RC -sdioh_cfg_read(sdioh_info_t *sd, uint fnc_num, u32 addr, u8 *data) -{ - SDIOH_API_RC status; - /* No lock needed since sdioh_request_byte does locking */ - status = sdioh_request_byte(sd, SDIOH_READ, fnc_num, addr, data); - return status; -} - -extern SDIOH_API_RC -sdioh_cfg_write(sdioh_info_t *sd, uint fnc_num, u32 addr, u8 *data) -{ - /* No lock needed since sdioh_request_byte does locking */ - SDIOH_API_RC status; - status = sdioh_request_byte(sd, SDIOH_WRITE, fnc_num, addr, data); - return status; -} - -static int sdioh_sdmmc_get_cisaddr(sdioh_info_t *sd, u32 regaddr) -{ - /* read 24 bits and return valid 17 bit addr */ - int i; - u32 scratch, regdata; - u8 *ptr = (u8 *)&scratch; - for (i = 0; i < 3; i++) { - if ((sdioh_sdmmc_card_regread(sd, 0, regaddr, 1, ®data)) != - SUCCESS) - sd_err(("%s: Can't read!\n", __func__)); - - *ptr++ = (u8) regdata; - regaddr++; - } - - /* Only the lower 17-bits are valid */ - scratch = le32_to_cpu(scratch); - scratch &= 0x0001FFFF; - return scratch; -} - -extern SDIOH_API_RC -sdioh_cis_read(sdioh_info_t *sd, uint func, u8 *cisd, u32 length) -{ - u32 count; - int offset; - u32 foo; - u8 *cis = cisd; - - sd_trace(("%s: Func = %d\n", __func__, func)); - - if (!sd->func_cis_ptr[func]) { - memset(cis, 0, length); - sd_err(("%s: no func_cis_ptr[%d]\n", __func__, func)); - return SDIOH_API_RC_FAIL; - } - - sd_err(("%s: func_cis_ptr[%d]=0x%04x\n", __func__, func, - sd->func_cis_ptr[func])); - - for (count = 0; count < length; count++) { - offset = sd->func_cis_ptr[func] + count; - if (sdioh_sdmmc_card_regread(sd, 0, offset, 1, &foo) < 0) { - sd_err(("%s: regread failed: Can't read CIS\n", - __func__)); - return SDIOH_API_RC_FAIL; - } - - *cis = (u8) (foo & 0xff); - cis++; - } - - return SDIOH_API_RC_SUCCESS; -} - -extern SDIOH_API_RC -sdioh_request_byte(sdioh_info_t *sd, uint rw, uint func, uint regaddr, - u8 *byte) -{ - int err_ret; - - sd_info(("%s: rw=%d, func=%d, addr=0x%05x\n", __func__, rw, func, - regaddr)); - - DHD_PM_RESUME_WAIT(sdioh_request_byte_wait); - DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); - if (rw) { /* CMD52 Write */ - if (func == 0) { - /* Can only directly write to some F0 registers. - * Handle F2 enable - * as a special case. - */ - if (regaddr == SDIOD_CCCR_IOEN) { - if (gInstance->func[2]) { - sdio_claim_host(gInstance->func[2]); - if (*byte & SDIO_FUNC_ENABLE_2) { - /* Enable Function 2 */ - err_ret = - sdio_enable_func - (gInstance->func[2]); - if (err_ret) - sd_err(("bcmsdh_sdmmc: enable F2 failed:%d", - err_ret)); - } else { - /* Disable Function 2 */ - err_ret = - sdio_disable_func - (gInstance->func[2]); - if (err_ret) - sd_err(("bcmsdh_sdmmc: Disab F2 failed:%d", - err_ret)); - } - sdio_release_host(gInstance->func[2]); - } - } -#if defined(MMC_SDIO_ABORT) - /* to allow abort command through F1 */ - else if (regaddr == SDIOD_CCCR_IOABORT) { - sdio_claim_host(gInstance->func[func]); - /* - * this sdio_f0_writeb() can be replaced - * with another api - * depending upon MMC driver change. - * As of this time, this is temporaray one - */ - sdio_writeb(gInstance->func[func], *byte, - regaddr, &err_ret); - sdio_release_host(gInstance->func[func]); - } -#endif /* MMC_SDIO_ABORT */ - else if (regaddr < 0xF0) { - sd_err(("bcmsdh_sdmmc: F0 Wr:0x%02x: write " - "disallowed\n", regaddr)); - } else { - /* Claim host controller, perform F0 write, - and release */ - sdio_claim_host(gInstance->func[func]); - sdio_f0_writeb(gInstance->func[func], *byte, - regaddr, &err_ret); - sdio_release_host(gInstance->func[func]); - } - } else { - /* Claim host controller, perform Fn write, - and release */ - sdio_claim_host(gInstance->func[func]); - sdio_writeb(gInstance->func[func], *byte, regaddr, - &err_ret); - sdio_release_host(gInstance->func[func]); - } - } else { /* CMD52 Read */ - /* Claim host controller, perform Fn read, and release */ - sdio_claim_host(gInstance->func[func]); - - if (func == 0) { - *byte = - sdio_f0_readb(gInstance->func[func], regaddr, - &err_ret); - } else { - *byte = - sdio_readb(gInstance->func[func], regaddr, - &err_ret); - } - - sdio_release_host(gInstance->func[func]); - } - - if (err_ret) - sd_err(("bcmsdh_sdmmc: Failed to %s byte F%d:@0x%05x=%02x, " - "Err: %d\n", rw ? "Write" : "Read", func, regaddr, - *byte, err_ret)); - - return ((err_ret == 0) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL); -} - -extern SDIOH_API_RC -sdioh_request_word(sdioh_info_t *sd, uint cmd_type, uint rw, uint func, - uint addr, u32 *word, uint nbytes) -{ - int err_ret = SDIOH_API_RC_FAIL; - - if (func == 0) { - sd_err(("%s: Only CMD52 allowed to F0.\n", __func__)); - return SDIOH_API_RC_FAIL; - } - - sd_info(("%s: cmd_type=%d, rw=%d, func=%d, addr=0x%05x, nbytes=%d\n", - __func__, cmd_type, rw, func, addr, nbytes)); - - DHD_PM_RESUME_WAIT(sdioh_request_word_wait); - DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); - /* Claim host controller */ - sdio_claim_host(gInstance->func[func]); - - if (rw) { /* CMD52 Write */ - if (nbytes == 4) { - sdio_writel(gInstance->func[func], *word, addr, - &err_ret); - } else if (nbytes == 2) { - sdio_writew(gInstance->func[func], (*word & 0xFFFF), - addr, &err_ret); - } else { - sd_err(("%s: Invalid nbytes: %d\n", __func__, nbytes)); - } - } else { /* CMD52 Read */ - if (nbytes == 4) { - *word = - sdio_readl(gInstance->func[func], addr, &err_ret); - } else if (nbytes == 2) { - *word = - sdio_readw(gInstance->func[func], addr, - &err_ret) & 0xFFFF; - } else { - sd_err(("%s: Invalid nbytes: %d\n", __func__, nbytes)); - } - } - - /* Release host controller */ - sdio_release_host(gInstance->func[func]); - - if (err_ret) { - sd_err(("bcmsdh_sdmmc: Failed to %s word, Err: 0x%08x", - rw ? "Write" : "Read", err_ret)); - } - - return ((err_ret == 0) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL); -} - -static SDIOH_API_RC -sdioh_request_packet(sdioh_info_t *sd, uint fix_inc, uint write, uint func, - uint addr, struct sk_buff *pkt) -{ - bool fifo = (fix_inc == SDIOH_DATA_FIX); - u32 SGCount = 0; - int err_ret = 0; - - struct sk_buff *pnext; - - sd_trace(("%s: Enter\n", __func__)); - - ASSERT(pkt); - DHD_PM_RESUME_WAIT(sdioh_request_packet_wait); - DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); - - /* Claim host controller */ - sdio_claim_host(gInstance->func[func]); - for (pnext = pkt; pnext; pnext = pnext->next) { - uint pkt_len = pnext->len; - pkt_len += 3; - pkt_len &= 0xFFFFFFFC; - -#ifdef CONFIG_MMC_MSM7X00A - if ((pkt_len % 64) == 32) { - sd_trace(("%s: Rounding up TX packet +=32\n", - __func__)); - pkt_len += 32; - } -#endif /* CONFIG_MMC_MSM7X00A */ - /* Make sure the packet is aligned properly. - * If it isn't, then this - * is the fault of sdioh_request_buffer() which - * is supposed to give - * us something we can work with. - */ - ASSERT(((u32) (pkt->data) & DMA_ALIGN_MASK) == 0); - - if ((write) && (!fifo)) { - err_ret = sdio_memcpy_toio(gInstance->func[func], addr, - ((u8 *) (pnext->data)), - pkt_len); - } else if (write) { - err_ret = sdio_memcpy_toio(gInstance->func[func], addr, - ((u8 *) (pnext->data)), - pkt_len); - } else if (fifo) { - err_ret = sdio_readsb(gInstance->func[func], - ((u8 *) (pnext->data)), - addr, pkt_len); - } else { - err_ret = sdio_memcpy_fromio(gInstance->func[func], - ((u8 *) (pnext->data)), - addr, pkt_len); - } - - if (err_ret) { - sd_err(("%s: %s FAILED %p[%d], addr=0x%05x, pkt_len=%d," - "ERR=0x%08x\n", __func__, - (write) ? "TX" : "RX", - pnext, SGCount, addr, pkt_len, err_ret)); - } else { - sd_trace(("%s: %s xfr'd %p[%d], addr=0x%05x, len=%d\n", - __func__, - (write) ? "TX" : "RX", - pnext, SGCount, addr, pkt_len)); - } - - if (!fifo) - addr += pkt_len; - SGCount++; - - } - - /* Release host controller */ - sdio_release_host(gInstance->func[func]); - - sd_trace(("%s: Exit\n", __func__)); - return ((err_ret == 0) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL); -} - -/* - * This function takes a buffer or packet, and fixes everything up - * so that in the end, a DMA-able packet is created. - * - * A buffer does not have an associated packet pointer, - * and may or may not be aligned. - * A packet may consist of a single packet, or a packet chain. - * If it is a packet chain, then all the packets in the chain - * must be properly aligned. - * - * If the packet data is not aligned, then there may only be - * one packet, and in this case, it is copied to a new - * aligned packet. - * - */ -extern SDIOH_API_RC -sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write, - uint func, uint addr, uint reg_width, uint buflen_u, - u8 *buffer, struct sk_buff *pkt) -{ - SDIOH_API_RC Status; - struct sk_buff *mypkt = NULL; - - sd_trace(("%s: Enter\n", __func__)); - - DHD_PM_RESUME_WAIT(sdioh_request_buffer_wait); - DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); - /* Case 1: we don't have a packet. */ - if (pkt == NULL) { - sd_data(("%s: Creating new %s Packet, len=%d\n", - __func__, write ? "TX" : "RX", buflen_u)); - mypkt = bcm_pkt_buf_get_skb(buflen_u); - if (!mypkt) { - sd_err(("%s: bcm_pkt_buf_get_skb failed: len %d\n", - __func__, buflen_u)); - return SDIOH_API_RC_FAIL; - } - - /* For a write, copy the buffer data into the packet. */ - if (write) - memcpy(mypkt->data, buffer, buflen_u); - - Status = - sdioh_request_packet(sd, fix_inc, write, func, addr, mypkt); - - /* For a read, copy the packet data back to the buffer. */ - if (!write) - memcpy(buffer, mypkt->data, buflen_u); - - bcm_pkt_buf_free_skb(mypkt); - } else if (((u32) (pkt->data) & DMA_ALIGN_MASK) != 0) { - /* Case 2: We have a packet, but it is unaligned. */ - - /* In this case, we cannot have a chain. */ - ASSERT(pkt->next == NULL); - - sd_data(("%s: Creating aligned %s Packet, len=%d\n", - __func__, write ? "TX" : "RX", pkt->len)); - mypkt = bcm_pkt_buf_get_skb(pkt->len); - if (!mypkt) { - sd_err(("%s: bcm_pkt_buf_get_skb failed: len %d\n", - __func__, pkt->len)); - return SDIOH_API_RC_FAIL; - } - - /* For a write, copy the buffer data into the packet. */ - if (write) - memcpy(mypkt->data, pkt->data, pkt->len); - - Status = - sdioh_request_packet(sd, fix_inc, write, func, addr, mypkt); - - /* For a read, copy the packet data back to the buffer. */ - if (!write) - memcpy(pkt->data, mypkt->data, mypkt->len); - - bcm_pkt_buf_free_skb(mypkt); - } else { /* case 3: We have a packet and - it is aligned. */ - sd_data(("%s: Aligned %s Packet, direct DMA\n", - __func__, write ? "Tx" : "Rx")); - Status = - sdioh_request_packet(sd, fix_inc, write, func, addr, pkt); - } - - return Status; -} - -/* this function performs "abort" for both of host & device */ -extern int sdioh_abort(sdioh_info_t *sd, uint func) -{ -#if defined(MMC_SDIO_ABORT) - char t_func = (char)func; -#endif /* defined(MMC_SDIO_ABORT) */ - sd_trace(("%s: Enter\n", __func__)); - -#if defined(MMC_SDIO_ABORT) - /* issue abort cmd52 command through F1 */ - sdioh_request_byte(sd, SD_IO_OP_WRITE, SDIO_FUNC_0, SDIOD_CCCR_IOABORT, - &t_func); -#endif /* defined(MMC_SDIO_ABORT) */ - - sd_trace(("%s: Exit\n", __func__)); - return SDIOH_API_RC_SUCCESS; -} - -/* Reset and re-initialize the device */ -int sdioh_sdio_reset(sdioh_info_t *si) -{ - sd_trace(("%s: Enter\n", __func__)); - sd_trace(("%s: Exit\n", __func__)); - return SDIOH_API_RC_SUCCESS; -} - -/* Disable device interrupt */ -void sdioh_sdmmc_devintr_off(sdioh_info_t *sd) -{ - sd_trace(("%s: %d\n", __func__, sd->use_client_ints)); - sd->intmask &= ~CLIENT_INTR; -} - -/* Enable device interrupt */ -void sdioh_sdmmc_devintr_on(sdioh_info_t *sd) -{ - sd_trace(("%s: %d\n", __func__, sd->use_client_ints)); - sd->intmask |= CLIENT_INTR; -} - -/* Read client card reg */ -int -sdioh_sdmmc_card_regread(sdioh_info_t *sd, int func, u32 regaddr, - int regsize, u32 *data) -{ - - if ((func == 0) || (regsize == 1)) { - u8 temp = 0; - - sdioh_request_byte(sd, SDIOH_READ, func, regaddr, &temp); - *data = temp; - *data &= 0xff; - sd_data(("%s: byte read data=0x%02x\n", __func__, *data)); - } else { - sdioh_request_word(sd, 0, SDIOH_READ, func, regaddr, data, - regsize); - if (regsize == 2) - *data &= 0xffff; - - sd_data(("%s: word read data=0x%08x\n", __func__, *data)); - } - - return SUCCESS; -} - -#if !defined(OOB_INTR_ONLY) -/* bcmsdh_sdmmc interrupt handler */ -static void IRQHandler(struct sdio_func *func) -{ - sdioh_info_t *sd; - - sd_trace(("bcmsdh_sdmmc: ***IRQHandler\n")); - sd = gInstance->sd; - - ASSERT(sd != NULL); - sdio_release_host(gInstance->func[0]); - - if (sd->use_client_ints) { - sd->intrcount++; - ASSERT(sd->intr_handler); - ASSERT(sd->intr_handler_arg); - (sd->intr_handler) (sd->intr_handler_arg); - } else { - sd_err(("bcmsdh_sdmmc: ***IRQHandler\n")); - - sd_err(("%s: Not ready for intr: enabled %d, handler %p\n", - __func__, sd->client_intr_enabled, sd->intr_handler)); - } - - sdio_claim_host(gInstance->func[0]); -} - -/* bcmsdh_sdmmc interrupt handler for F2 (dummy handler) */ -static void IRQHandlerF2(struct sdio_func *func) -{ - sdioh_info_t *sd; - - sd_trace(("bcmsdh_sdmmc: ***IRQHandlerF2\n")); - - sd = gInstance->sd; - - ASSERT(sd != NULL); -} -#endif /* !defined(OOB_INTR_ONLY) */ - -#ifdef NOTUSED -/* Write client card reg */ -static int -sdioh_sdmmc_card_regwrite(sdioh_info_t *sd, int func, u32 regaddr, - int regsize, u32 data) -{ - - if ((func == 0) || (regsize == 1)) { - u8 temp; - - temp = data & 0xff; - sdioh_request_byte(sd, SDIOH_READ, func, regaddr, &temp); - sd_data(("%s: byte write data=0x%02x\n", __func__, data)); - } else { - if (regsize == 2) - data &= 0xffff; - - sdioh_request_word(sd, 0, SDIOH_READ, func, regaddr, &data, - regsize); - - sd_data(("%s: word write data=0x%08x\n", __func__, data)); - } - - return SUCCESS; -} -#endif /* NOTUSED */ - -int sdioh_start(sdioh_info_t *si, int stage) -{ - return 0; -} - -int sdioh_stop(sdioh_info_t *si) -{ - return 0; -} |