diff options
Diffstat (limited to 'drivers/net/wireless/bcmdhd.1.88.45.x.cn/bcmsdh_sdmmc.c')
| -rwxr-xr-x | drivers/net/wireless/bcmdhd.1.88.45.x.cn/bcmsdh_sdmmc.c | 1651 |
1 files changed, 1651 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd.1.88.45.x.cn/bcmsdh_sdmmc.c b/drivers/net/wireless/bcmdhd.1.88.45.x.cn/bcmsdh_sdmmc.c new file mode 100755 index 00000000..50057297 --- /dev/null +++ b/drivers/net/wireless/bcmdhd.1.88.45.x.cn/bcmsdh_sdmmc.c @@ -0,0 +1,1651 @@ +/* + * BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel + * + * Copyright (C) 1999-2013, Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2 (the "GPL"), + * available at http://www.broadcom.com/licenses/GPLv2.php, with the + * following added to such license: + * + * As a special exception, the copyright holders of this software give you + * permission to link this software with independent modules, and to copy and + * distribute the resulting executable under terms of your choice, provided that + * you also meet, for each linked independent module, the terms and conditions of + * the license of that module. An independent module is a module which is not + * derived from this software. The special exception does not apply to any + * modifications of the software. + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a license + * other than the GPL, without Broadcom's express prior written consent. + * + * $Id: bcmsdh_sdmmc.c 418714 2013-08-16 13:21:09Z $ + */ +#include <typedefs.h> + +#include <bcmdevs.h> +#include <bcmendian.h> +#include <bcmutils.h> +#include <osl.h> +#include <sdio.h> /* SDIO Device and Protocol Specs */ +#include <sdioh.h> /* Standard 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/card.h> +#include <linux/mmc/sdio_func.h> +#include <linux/mmc/sdio_ids.h> + +#include <dngl_stats.h> +#include <dhd.h> + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) +#include <linux/suspend.h> +extern volatile bool dhd_mmc_suspend; +#endif +#include "bcmsdh_sdmmc.h" + +#ifndef BCMSDH_MODULE +extern int sdio_function_init(void); +extern void sdio_function_cleanup(void); +#endif /* BCMSDH_MODULE */ + +#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, uint32 regaddr); +extern int sdio_reset_comm(struct mmc_card *card); + +extern PBCMSDH_SDMMC_INSTANCE gInstance; + +#define DEFAULT_SDIO_F2_BLKSIZE 512 +#ifndef CUSTOM_SDIO_F2_BLKSIZE +#define CUSTOM_SDIO_F2_BLKSIZE DEFAULT_SDIO_F2_BLKSIZE +#endif + +uint sd_sdmode = SDIOH_MODE_SD4; /* Use SD4 mode by default */ +uint sd_f2_blocksize = CUSTOM_SDIO_F2_BLKSIZE; +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; + +#ifdef BCMSDIOH_TXGLOM +#ifndef CUSTOM_TXGLOM +#define CUSTOM_TXGLOM 0 +#endif +uint sd_txglom = CUSTOM_TXGLOM; +#endif /* BCMSDIOH_TXGLOM */ + +#ifndef CUSTOM_RXCHAIN +#define CUSTOM_RXCHAIN 0 +#endif + +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 +#define MMC_SDIO_ABORT_RETRY_LIMIT 5 + +int sdioh_sdmmc_card_regread(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 *data); + +static int +sdioh_sdmmc_card_enablefuncs(sdioh_info_t *sd) +{ + int err_ret; + uint32 fbraddr; + uint8 func; + + sd_trace(("%s\n", __FUNCTION__)); + + /* 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", __FUNCTION__, 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", + __FUNCTION__, 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", __FUNCTION__, 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 + */ +extern sdioh_info_t * +sdioh_attach(osl_t *osh, void *bar0, uint irq) +{ + sdioh_info_t *sd; + int err_ret; + + sd_trace(("%s\n", __FUNCTION__)); + + if (gInstance == NULL) { + sd_err(("%s: SDIO Device not present\n", __FUNCTION__)); + return NULL; + } + + if ((sd = (sdioh_info_t *)MALLOC(osh, sizeof(sdioh_info_t))) == NULL) { + sd_err(("sdioh_attach: out of memory, malloced %d bytes\n", MALLOCED(osh))); + return NULL; + } + bzero((char *)sd, sizeof(sdioh_info_t)); + sd->osh = osh; + if (sdioh_sdmmc_osinit(sd) != 0) { + sd_err(("%s:sdioh_sdmmc_osinit() failed\n", __FUNCTION__)); + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + return NULL; + } + + sd->num_funcs = 2; + sd->sd_blockmode = TRUE; + sd->use_client_ints = TRUE; + sd->client_block_size[0] = 64; + sd->use_rxchain = CUSTOM_RXCHAIN; + + gInstance->sd = sd; + + /* Claim host controller */ + if (gInstance->func[1]) { + sdio_claim_host(gInstance->func[1]); + + sd->client_block_size[1] = 64; + err_ret = sdio_set_block_size(gInstance->func[1], 64); + /* Release host controller F1 */ + sdio_release_host(gInstance->func[1]); + if (err_ret) { + sd_err(("bcmsdh_sdmmc: Failed to set F1 blocksize\n")); + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + return NULL; + } + + } else { + sd_err(("%s:gInstance->func[1] is null\n", __FUNCTION__)); + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + return NULL; + } + + 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); + /* Release host controller F2 */ + sdio_release_host(gInstance->func[2]); + if (err_ret) { + sd_err(("bcmsdh_sdmmc: Failed to set F2 blocksize to %d\n", + sd_f2_blocksize)); + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + return NULL; + } + + } else { + sd_err(("%s:gInstance->func[2] is null\n", __FUNCTION__)); + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + return NULL; + } + + sdioh_sdmmc_card_enablefuncs(sd); + + sd_trace(("%s: Done\n", __FUNCTION__)); + return sd; +} + + +extern SDIOH_API_RC +sdioh_detach(osl_t *osh, sdioh_info_t *sd) +{ + sd_trace(("%s\n", __FUNCTION__)); + + 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 */ + if (gInstance->func[1]) { + sdio_claim_host(gInstance->func[1]); + sdio_disable_func(gInstance->func[1]); + sdio_release_host(gInstance->func[1]); + } + + gInstance->func[1] = NULL; + gInstance->func[2] = NULL; + + /* deregister irq */ + sdioh_sdmmc_osfree(sd); + + MFREE(sd->osh, sd, sizeof(sdioh_info_t)); + } + return SDIOH_API_RC_SUCCESS; +} + +#if defined(OOB_INTR_ONLY) && defined(HW_OOB) + +extern SDIOH_API_RC +sdioh_enable_func_intr(void) +{ + uint8 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", __FUNCTION__, err)); + sdio_release_host(gInstance->func[0]); + return SDIOH_API_RC_FAIL; + } + + /* Enable F1 and F2 interrupts, clear master enable */ + reg &= ~INTR_CTL_MASTER_EN; + reg |= (INTR_CTL_FUNC1_EN | INTR_CTL_FUNC2_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", __FUNCTION__, err)); + return SDIOH_API_RC_FAIL; + } + } + + return SDIOH_API_RC_SUCCESS; +} + +extern SDIOH_API_RC +sdioh_disable_func_intr(void) +{ + uint8 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", __FUNCTION__, 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", __FUNCTION__, 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 recieve 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", __FUNCTION__)); + if (fn == NULL) { + sd_err(("%s: interrupt handler is NULL, not registering\n", __FUNCTION__)); + 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", __FUNCTION__)); + +#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) + if (dhd_download_fw_on_driverload) + 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", __FUNCTION__)); + *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; + int32 int_val = 0; + bool bool_val; + uint32 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", __FUNCTION__, (set ? "set" : "get"), name)); + + if ((vi = bcm_iovar_lookup(sdioh_iovars, name)) == NULL) { + bcmerror = BCME_UNSUPPORTED; + goto exit; + } + + if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, set)) != 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)) + bcopy(params, &int_val, sizeof(int_val)); + + bool_val = (int_val != 0) ? TRUE : FALSE; + BCM_REFERENCE(bool_val); + + actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid); + switch (actionid) { + case IOV_GVAL(IOV_MSGLEVEL): + int_val = (int32)sd_msglevel; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_MSGLEVEL): + sd_msglevel = int_val; + break; + + case IOV_GVAL(IOV_BLOCKMODE): + int_val = (int32)si->sd_blockmode; + bcopy(&int_val, arg, 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 ((uint32)int_val > si->num_funcs) { + bcmerror = BCME_BADARG; + break; + } + int_val = (int32)si->client_block_size[int_val]; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_BLOCKSIZE): + { + uint func = ((uint32)int_val >> 16); + uint blksize = (uint16)int_val; + uint maxsize; + + if (func > si->num_funcs) { + bcmerror = BCME_BADARG; + 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 = BCME_BADARG; + break; + } + if (!blksize) { + blksize = maxsize; + } + + /* Now set it */ + si->client_block_size[func] = blksize; + + break; + } + + case IOV_GVAL(IOV_RXCHAIN): + int_val = (int32)si->use_rxchain; + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_DMA): + int_val = (int32)si->sd_use_dma; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_DMA): + si->sd_use_dma = (bool)int_val; + break; + + case IOV_GVAL(IOV_USEINTS): + int_val = (int32)si->use_client_ints; + bcopy(&int_val, arg, 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 = (uint32)sd_divisor; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_DIVISOR): + sd_divisor = int_val; + break; + + case IOV_GVAL(IOV_POWER): + int_val = (uint32)sd_power; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_POWER): + sd_power = int_val; + break; + + case IOV_GVAL(IOV_CLOCK): + int_val = (uint32)sd_clock; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_CLOCK): + sd_clock = int_val; + break; + + case IOV_GVAL(IOV_SDMODE): + int_val = (uint32)sd_sdmode; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_SDMODE): + sd_sdmode = int_val; + break; + + case IOV_GVAL(IOV_HISPEED): + int_val = (uint32)sd_hiok; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_HISPEED): + sd_hiok = int_val; + break; + + case IOV_GVAL(IOV_NUMINTS): + int_val = (int32)si->intrcount; + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_NUMLOCALINTS): + int_val = (int32)0; + bcopy(&int_val, arg, 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", __FUNCTION__, sd_ptr->offset)); + bcmerror = BCME_BADARG; + break; + } + + sd_trace(("%s: rreg%d at offset %d\n", __FUNCTION__, + (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); */ + + bcopy(&int_val, arg, 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", __FUNCTION__, sd_ptr->offset)); + bcmerror = BCME_BADARG; + break; + } + + sd_trace(("%s: wreg%d value 0x%08x at offset %d\n", __FUNCTION__, 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; + uint8 data = 0; + + if (sdioh_cfg_read(si, sd_ptr->func, sd_ptr->offset, &data)) { + bcmerror = BCME_SDIO_ERROR; + break; + } + + int_val = (int)data; + bcopy(&int_val, arg, sizeof(int_val)); + break; + } + + case IOV_SVAL(IOV_DEVREG): + { + sdreg_t *sd_ptr = (sdreg_t *)params; + uint8 data = (uint8)sd_ptr->value; + + if (sdioh_cfg_write(si, sd_ptr->func, sd_ptr->offset, &data)) { + bcmerror = BCME_SDIO_ERROR; + break; + } + break; + } + + default: + bcmerror = BCME_UNSUPPORTED; + 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; + uint8 data; + + if (enable) + data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE | SDIO_SEPINT_ACT_HI; + else + data = SDIO_SEPINT_ACT_HI; /* disable hw oob interrupt */ + + status = sdioh_request_byte(sd, SDIOH_WRITE, 0, SDIOD_CCCR_BRCM_SEPINT, &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, uint32 addr, uint8 *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, uint32 addr, uint8 *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, uint32 regaddr) +{ + /* read 24 bits and return valid 17 bit addr */ + int i; + uint32 scratch, regdata; + uint8 *ptr = (uint8 *)&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", __FUNCTION__)); + + *ptr++ = (uint8) regdata; + regaddr++; + } + + /* Only the lower 17-bits are valid */ + scratch = ltoh32(scratch); + scratch &= 0x0001FFFF; + return (scratch); +} + +extern SDIOH_API_RC +sdioh_cis_read(sdioh_info_t *sd, uint func, uint8 *cisd, uint32 length) +{ + uint32 count; + int offset; + uint32 foo; + uint8 *cis = cisd; + + sd_trace(("%s: Func = %d\n", __FUNCTION__, func)); + + if (!sd->func_cis_ptr[func]) { + bzero(cis, length); + sd_err(("%s: no func_cis_ptr[%d]\n", __FUNCTION__, func)); + return SDIOH_API_RC_FAIL; + } + + sd_trace(("%s: func_cis_ptr[%d]=0x%04x\n", __FUNCTION__, 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", __FUNCTION__)); + return SDIOH_API_RC_FAIL; + } + + *cis = (uint8)(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, uint8 *byte) +{ + int err_ret = 0; +#if defined(MMC_SDIO_ABORT) + int sdio_abort_retry = MMC_SDIO_ABORT_RETRY_LIMIT; +#endif + + sd_info(("%s: rw=%d, func=%d, addr=0x%05x\n", __FUNCTION__, 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) { + while (sdio_abort_retry--) { + if (gInstance->func[func]) { + 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]); + } + if (!err_ret) + break; + } + } +#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 */ + if (gInstance->func[func]) { + 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 */ + if (gInstance->func[func]) { + 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 */ + if (gInstance->func[func]) { + 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) { + if ((regaddr == 0x1001F) && ((err_ret == -ETIMEDOUT) || (err_ret == -EILSEQ))) { + } else { + 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, + uint32 *word, uint nbytes) +{ + int err_ret = SDIOH_API_RC_FAIL; + int err_ret2 = SDIOH_API_RC_SUCCESS; // terence 20130621: prevent dhd_dpc in dead lock +#if defined(MMC_SDIO_ABORT) + int sdio_abort_retry = MMC_SDIO_ABORT_RETRY_LIMIT; +#endif + + if (func == 0) { + sd_err(("%s: Only CMD52 allowed to F0.\n", __FUNCTION__)); + return SDIOH_API_RC_FAIL; + } + + sd_info(("%s: cmd_type=%d, rw=%d, func=%d, addr=0x%05x, nbytes=%d\n", + __FUNCTION__, 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", __FUNCTION__, 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", __FUNCTION__, nbytes)); + } + } + + /* Release host controller */ + sdio_release_host(gInstance->func[func]); + + if (err_ret) { +#if defined(MMC_SDIO_ABORT) + /* Any error on CMD53 transaction should abort that function using function 0. */ + while (sdio_abort_retry--) { + if (gInstance->func[0]) { + sdio_claim_host(gInstance->func[0]); + /* + * 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[0], + func, SDIOD_CCCR_IOABORT, &err_ret2); + sdio_release_host(gInstance->func[0]); + } + if (!err_ret2) + break; + } + if (err_ret) +#endif /* MMC_SDIO_ABORT */ + { + sd_err(("bcmsdh_sdmmc: Failed to %s word, Err: 0x%08x\n", + rw ? "Write" : "Read", err_ret)); + } + } + + return (((err_ret == 0)&&(err_ret2 == 0)) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL); +} + +#ifdef BCMSDIOH_TXGLOM +void +sdioh_glom_post(sdioh_info_t *sd, uint8 *frame, void *pkt, uint len) +{ + void *phead = sd->glom_info.glom_pkt_head; + void *ptail = sd->glom_info.glom_pkt_tail; + + BCM_REFERENCE(frame); + + ASSERT(!PKTLINK(pkt)); + if (!phead) { + ASSERT(!phead); + sd->glom_info.glom_pkt_head = sd->glom_info.glom_pkt_tail = pkt; + } + else { + ASSERT(ptail); + PKTSETNEXT(sd->osh, ptail, pkt); + sd->glom_info.glom_pkt_tail = pkt; + } + sd->glom_info.count++; +} + +void +sdioh_glom_clear(sdioh_info_t *sd) +{ + void *pnow, *pnext; + + pnext = sd->glom_info.glom_pkt_head; + + if (!pnext) { + sd_err(("sdioh_glom_clear: no first packet to clear!\n")); + return; + } + + while (pnext) { + pnow = pnext; + pnext = PKTNEXT(sd->osh, pnow); + PKTSETNEXT(sd->osh, pnow, NULL); + sd->glom_info.count--; + } + + sd->glom_info.glom_pkt_head = NULL; + sd->glom_info.glom_pkt_tail = NULL; + if (sd->glom_info.count != 0) { + sd_err(("sdioh_glom_clear: glom count mismatch!\n")); + sd->glom_info.count = 0; + } +} + +uint +sdioh_set_mode(sdioh_info_t *sd, uint mode) +{ + if (mode == SDPCM_TXGLOM_CPY) + sd->txglom_mode = mode; + else if (mode == SDPCM_TXGLOM_MDESC) + sd->txglom_mode = mode; + + return (sd->txglom_mode); +} + +bool +sdioh_glom_enabled(void) +{ + return sd_txglom; +} +#endif /* BCMSDIOH_TXGLOM */ + +static INLINE int sdioh_request_packet_align(uint pkt_len, uint write, uint func, int blk_size) +{ + /* Align Patch */ + if (!write || pkt_len < 32) + pkt_len = (pkt_len + 3) & 0xFFFFFFFC; + else if ((pkt_len > blk_size) && (pkt_len % blk_size)) { + if (func == SDIO_FUNC_2) { + sd_err(("%s: [%s] dhd_sdio must align %d bytes" + " packet larger than a %d bytes blk size by a blk size\n", + __FUNCTION__, write ? "W" : "R", pkt_len, blk_size)); + } + pkt_len += blk_size - (pkt_len % blk_size); + } +#ifdef CONFIG_MMC_MSM7X00A + if ((pkt_len % 64) == 32) { + sd_err(("%s: Rounding up TX packet +=32\n", __FUNCTION__)); + pkt_len += 32; + } +#endif /* CONFIG_MMC_MSM7X00A */ + return pkt_len; +} + +static SDIOH_API_RC +sdioh_request_packet(sdioh_info_t *sd, uint fix_inc, uint write, uint func, + uint addr, void *pkt) +{ + bool fifo = (fix_inc == SDIOH_DATA_FIX); + uint32 SGCount = 0; + int err_ret = 0; + void *pnext; + uint ttl_len, dma_len, lft_len, xfred_len, pkt_len; + uint blk_num; + int blk_size; + struct mmc_request mmc_req; + struct mmc_command mmc_cmd; + struct mmc_data mmc_dat; +#ifdef BCMSDIOH_TXGLOM + uint8 *localbuf = NULL; + uint local_plen = 0; + bool need_txglom = write && sdioh_glom_enabled() && + (pkt == sd->glom_info.glom_pkt_tail) && + (sd->glom_info.glom_pkt_head != sd->glom_info.glom_pkt_tail); +#endif /* BCMSDIOH_TXGLOM */ + + sd_trace(("%s: Enter\n", __FUNCTION__)); + + ASSERT(pkt); + DHD_PM_RESUME_WAIT(sdioh_request_packet_wait); + DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); + + ttl_len = xfred_len = 0; +#ifdef BCMSDIOH_TXGLOM + if (need_txglom) { + pkt = sd->glom_info.glom_pkt_head; + } +#endif /* BCMSDIOH_TXGLOM */ + + /* at least 4 bytes alignment of skb buff is guaranteed */ + for (pnext = pkt; pnext; pnext = PKTNEXT(sd->osh, pnext)) + ttl_len += PKTLEN(sd->osh, pnext); + + blk_size = sd->client_block_size[func]; + if (((!write && sd->use_rxchain) || +#ifdef BCMSDIOH_TXGLOM + (need_txglom && sd->txglom_mode == SDPCM_TXGLOM_MDESC) || +#endif + 0) && (ttl_len >= blk_size)) { + blk_num = ttl_len / blk_size; + dma_len = blk_num * blk_size; + } else { + blk_num = 0; + dma_len = 0; + } + + lft_len = ttl_len - dma_len; + + sd_trace(("%s: %s %dB to func%d:%08x, %d blks with DMA, %dB leftover\n", + __FUNCTION__, write ? "W" : "R", + ttl_len, func, addr, blk_num, lft_len)); + + if (0 != dma_len) { + memset(&mmc_req, 0, sizeof(struct mmc_request)); + memset(&mmc_cmd, 0, sizeof(struct mmc_command)); + memset(&mmc_dat, 0, sizeof(struct mmc_data)); + + /* Set up DMA descriptors */ + for (pnext = pkt; + pnext && dma_len; + pnext = PKTNEXT(sd->osh, pnext)) { + pkt_len = PKTLEN(sd->osh, pnext); + + if (dma_len > pkt_len) + dma_len -= pkt_len; + else { + pkt_len = xfred_len = dma_len; + dma_len = 0; + pkt = pnext; + } + + sg_set_buf(&sd->sg_list[SGCount++], + (uint8*)PKTDATA(sd->osh, pnext), + pkt_len); + + if (SGCount >= SDIOH_SDMMC_MAX_SG_ENTRIES) { + sd_err(("%s: sg list entries exceed limit\n", + __FUNCTION__)); + return (SDIOH_API_RC_FAIL); + } + } + + mmc_dat.sg = sd->sg_list; + mmc_dat.sg_len = SGCount; + mmc_dat.blksz = blk_size; + mmc_dat.blocks = blk_num; + mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; + + mmc_cmd.opcode = 53; /* SD_IO_RW_EXTENDED */ + mmc_cmd.arg = write ? 1<<31 : 0; + mmc_cmd.arg |= (func & 0x7) << 28; + mmc_cmd.arg |= 1<<27; + mmc_cmd.arg |= fifo ? 0 : 1<<26; + mmc_cmd.arg |= (addr & 0x1FFFF) << 9; + mmc_cmd.arg |= blk_num & 0x1FF; + mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC; + + mmc_req.cmd = &mmc_cmd; + mmc_req.data = &mmc_dat; + + sdio_claim_host(gInstance->func[func]); + mmc_set_data_timeout(&mmc_dat, gInstance->func[func]->card); + mmc_wait_for_req(gInstance->func[func]->card->host, &mmc_req); + sdio_release_host(gInstance->func[func]); + + err_ret = mmc_cmd.error? mmc_cmd.error : mmc_dat.error; + if (0 != err_ret) { + sd_err(("%s:CMD53 %s failed with code %d\n", + __FUNCTION__, + write ? "write" : "read", + err_ret)); + } + if (!fifo) { + addr = addr + ttl_len - lft_len - dma_len; + } + } + + /* PIO mode */ + if (0 != lft_len) { + /* Claim host controller */ + sdio_claim_host(gInstance->func[func]); + for (pnext = pkt; pnext; pnext = PKTNEXT(sd->osh, pnext)) { + uint8 *buf = (uint8*)PKTDATA(sd->osh, pnext) + + xfred_len; + uint pad = 0; + pkt_len = PKTLEN(sd->osh, pnext); + if (0 != xfred_len) { + pkt_len -= xfred_len; + xfred_len = 0; + } +#ifdef BCMSDIOH_TXGLOM + if (need_txglom) { + if (!localbuf) { + uint prev_lft_len = lft_len; + lft_len = sdioh_request_packet_align(lft_len, write, + func, blk_size); + + if (lft_len > prev_lft_len) { + sd_err(("%s: padding is unexpected! lft_len %d," + " prev_lft_len %d %s\n", + __FUNCTION__, lft_len, prev_lft_len, + write ? "Write" : "Read")); + } + + localbuf = (uint8 *)MALLOC(sd->osh, lft_len); + if (localbuf == NULL) { + sd_err(("%s: %s TXGLOM: localbuf malloc FAILED\n", + __FUNCTION__, (write) ? "TX" : "RX")); + need_txglom = FALSE; + goto txglomfail; + } + } + bcopy(buf, (localbuf + local_plen), pkt_len); + local_plen += pkt_len; + + if (PKTNEXT(sd->osh, pnext)) { + continue; + } + + buf = localbuf; + pkt_len = local_plen; + } + +txglomfail: +#endif /* BCMSDIOH_TXGLOM */ + + if ( +#ifdef BCMSDIOH_TXGLOM + !need_txglom && +#endif + TRUE) { + pkt_len = sdioh_request_packet_align(pkt_len, write, + func, blk_size); + + pad = pkt_len - PKTLEN(sd->osh, pnext); + + if (pad > 0) { + if (func == SDIO_FUNC_2) { + sd_err(("%s: padding is unexpected! pkt_len %d," + " PKTLEN %d lft_len %d %s\n", + __FUNCTION__, pkt_len, PKTLEN(sd->osh, pnext), + lft_len, write ? "Write" : "Read")); + } + if (PKTTAILROOM(sd->osh, pkt) < pad) { + sd_info(("%s: insufficient tailroom %d, pad %d," + " lft_len %d pktlen %d, func %d %s\n", + __FUNCTION__, (int)PKTTAILROOM(sd->osh, pkt), + pad, lft_len, PKTLEN(sd->osh, pnext), func, + write ? "W" : "R")); + if (PKTPADTAILROOM(sd->osh, pkt, pad)) { + sd_err(("%s: padding error size %d.\n", + __FUNCTION__, pad)); + return SDIOH_API_RC_FAIL; + } + } + } + } + + if ((write) && (!fifo)) + err_ret = sdio_memcpy_toio( + gInstance->func[func], + addr, buf, pkt_len); + else if (write) + err_ret = sdio_memcpy_toio( + gInstance->func[func], + addr, buf, pkt_len); + else if (fifo) + err_ret = sdio_readsb( + gInstance->func[func], + buf, addr, pkt_len); + else + err_ret = sdio_memcpy_fromio( + gInstance->func[func], + buf, addr, pkt_len); + + if (err_ret) + sd_err(("%s: %s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=%d\n", + __FUNCTION__, + (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", + __FUNCTION__, + (write) ? "TX" : "RX", + pnext, SGCount, addr, pkt_len)); + + if (!fifo) + addr += pkt_len; + SGCount ++; + } + sdio_release_host(gInstance->func[func]); + } +#ifdef BCMSDIOH_TXGLOM + if (localbuf) + MFREE(sd->osh, localbuf, lft_len); +#endif /* BCMSDIOH_TXGLOM */ + + sd_trace(("%s: Exit\n", __FUNCTION__)); + 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, uint8 *buffer, void *pkt) +{ + SDIOH_API_RC Status; + void *tmppkt; + void *orig_buf = NULL; + uint copylen = 0; + + sd_trace(("%s: Enter\n", __FUNCTION__)); + + DHD_PM_RESUME_WAIT(sdioh_request_buffer_wait); + DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL); + + if (pkt == NULL) { + /* Case 1: we don't have a packet. */ + orig_buf = buffer; + copylen = buflen_u; + } else if ((ulong)PKTDATA(sd->osh, pkt) & DMA_ALIGN_MASK) { + /* Case 2: We have a packet, but it is unaligned. + * in this case, we cannot have a chain. + */ + ASSERT(PKTNEXT(sd->osh, pkt) == NULL); + + orig_buf = PKTDATA(sd->osh, pkt); + copylen = PKTLEN(sd->osh, pkt); + } + + tmppkt = pkt; + if (copylen) { + tmppkt = PKTGET_STATIC(sd->osh, copylen, write ? TRUE : FALSE); + if (tmppkt == NULL) { + sd_err(("%s: PKTGET failed: len %d\n", __FUNCTION__, copylen)); + return SDIOH_API_RC_FAIL; + } + /* For a write, copy the buffer data into the packet. */ + if (write) + bcopy(orig_buf, PKTDATA(sd->osh, tmppkt), copylen); + } + + Status = sdioh_request_packet(sd, fix_inc, write, func, addr, tmppkt); + + if (copylen) { + /* For a read, copy the packet data back to the buffer. */ + if (!write) + bcopy(PKTDATA(sd->osh, tmppkt), orig_buf, PKTLEN(sd->osh, tmppkt)); + PKTFREE_STATIC(sd->osh, tmppkt, write ? TRUE : FALSE); + } + + 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", __FUNCTION__)); + +#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", __FUNCTION__)); + return SDIOH_API_RC_SUCCESS; +} + +/* Reset and re-initialize the device */ +int sdioh_sdio_reset(sdioh_info_t *si) +{ + sd_trace(("%s: Enter\n", __FUNCTION__)); + sd_trace(("%s: Exit\n", __FUNCTION__)); + return SDIOH_API_RC_SUCCESS; +} + +/* Disable device interrupt */ +void +sdioh_sdmmc_devintr_off(sdioh_info_t *sd) +{ + sd_trace(("%s: %d\n", __FUNCTION__, 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", __FUNCTION__, sd->use_client_ints)); + sd->intmask |= CLIENT_INTR; +} + +/* Read client card reg */ +int +sdioh_sdmmc_card_regread(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 *data) +{ + + if ((func == 0) || (regsize == 1)) { + uint8 temp = 0; + + sdioh_request_byte(sd, SDIOH_READ, func, regaddr, &temp); + *data = temp; + *data &= 0xff; + sd_data(("%s: byte read data=0x%02x\n", + __FUNCTION__, *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", + __FUNCTION__, *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", + __FUNCTION__, 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); + BCM_REFERENCE(sd); +} +#endif /* !defined(OOB_INTR_ONLY) */ + +#ifdef NOTUSED +/* Write client card reg */ +static int +sdioh_sdmmc_card_regwrite(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 data) +{ + + if ((func == 0) || (regsize == 1)) { + uint8 temp; + + temp = data & 0xff; + sdioh_request_byte(sd, SDIOH_READ, func, regaddr, &temp); + sd_data(("%s: byte write data=0x%02x\n", + __FUNCTION__, 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", + __FUNCTION__, data)); + } + + return SUCCESS; +} +#endif /* NOTUSED */ + +int +sdioh_start(sdioh_info_t *si, int stage) +{ + int ret; + sdioh_info_t *sd = gInstance->sd; + + if (!sd) { + sd_err(("%s Failed, sd is NULL\n", __FUNCTION__)); + return (0); + } + + /* Need to do this stages as we can't enable the interrupt till + downloading of the firmware is complete, other wise polling + sdio access will come in way + */ + if (gInstance->func[0]) { + if (stage == 0) { + /* Since the power to the chip is killed, we will have + re enumerate the device again. Set the block size + and enable the fucntion 1 for in preparation for + downloading the code + */ + /* sdio_reset_comm() - has been fixed in latest kernel/msm.git for Linux + 2.6.27. The implementation prior to that is buggy, and needs broadcom's + patch for it + */ + if ((ret = sdio_reset_comm(gInstance->func[0]->card))) { + sd_err(("%s Failed, error = %d\n", __FUNCTION__, ret)); + return ret; + } + else { + sd->num_funcs = 2; + sd->sd_blockmode = TRUE; + sd->use_client_ints = TRUE; + sd->client_block_size[0] = 64; + + if (gInstance->func[1]) { + /* Claim host controller */ + sdio_claim_host(gInstance->func[1]); + + sd->client_block_size[1] = 64; + if (sdio_set_block_size(gInstance->func[1], 64)) { + 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; + if (sdio_set_block_size(gInstance->func[2], + sd_f2_blocksize)) { + 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); + } + } else { +#if !defined(OOB_INTR_ONLY) + sdio_claim_host(gInstance->func[0]); + if (gInstance->func[2]) + sdio_claim_irq(gInstance->func[2], IRQHandlerF2); + if (gInstance->func[1]) + sdio_claim_irq(gInstance->func[1], IRQHandler); + sdio_release_host(gInstance->func[0]); +#else /* defined(OOB_INTR_ONLY) */ +#if defined(HW_OOB) + sdioh_enable_func_intr(); +#endif + bcmsdh_oob_intr_set(TRUE); +#endif /* !defined(OOB_INTR_ONLY) */ + } + } + else + sd_err(("%s Failed\n", __FUNCTION__)); + + return (0); +} + +int +sdioh_stop(sdioh_info_t *si) +{ + /* MSM7201A Android sdio stack has bug with interrupt + So internaly within SDIO stack they are polling + which cause issue when device is turned off. So + unregister interrupt with SDIO stack to stop the + polling + */ + if (gInstance->func[0]) { +#if !defined(OOB_INTR_ONLY) + sdio_claim_host(gInstance->func[0]); + if (gInstance->func[1]) + sdio_release_irq(gInstance->func[1]); + if (gInstance->func[2]) + sdio_release_irq(gInstance->func[2]); + sdio_release_host(gInstance->func[0]); +#else /* defined(OOB_INTR_ONLY) */ +#if defined(HW_OOB) + sdioh_disable_func_intr(); +#endif + bcmsdh_oob_intr_set(FALSE); +#endif /* !defined(OOB_INTR_ONLY) */ + } + else + sd_err(("%s Failed\n", __FUNCTION__)); + return (0); +} + +int +sdioh_waitlockfree(sdioh_info_t *sd) +{ + return (1); +} + + +SDIOH_API_RC +sdioh_gpioouten(sdioh_info_t *sd, uint32 gpio) +{ + return SDIOH_API_RC_FAIL; +} + +SDIOH_API_RC +sdioh_gpioout(sdioh_info_t *sd, uint32 gpio, bool enab) +{ + return SDIOH_API_RC_FAIL; +} + +bool +sdioh_gpioin(sdioh_info_t *sd, uint32 gpio) +{ + return FALSE; +} + +SDIOH_API_RC +sdioh_gpio_init(sdioh_info_t *sd) +{ + return SDIOH_API_RC_FAIL; +} |