+++ /dev/null
-/*
- * Broadcom BCMSDH to gSPI Protocol Conversion Layer
- *
- * Copyright (C) 2010, Broadcom Corporation
- * All Rights Reserved.
- *
- * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
- * the contents of this file may not be disclosed to third parties, copied
- * or duplicated in any form, in whole or in part, without the prior
- * written permission of Broadcom Corporation.
- *
- * $Id: bcmspibrcm.c,v 1.11.2.10.2.9.6.11 2009/05/21 13:21:57 Exp $
- */
-
-#define HSMODE
-
-#include <typedefs.h>
-
-#include <bcmdevs.h>
-#include <bcmendian.h>
-#include <bcmutils.h>
-#include <osl.h>
-#include <hndsoc.h>
-#include <siutils.h>
-#include <sbchipc.h>
-#include <sbsdio.h>
-#include <spid.h>
-
-#include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */
-#include <sdiovar.h> /* ioctl/iovars */
-#include <sdio.h>
-
-#include <pcicfg.h>
-
-
-#include <bcmspibrcm.h>
-#include <bcmspi.h>
-
-#define F0_RESPONSE_DELAY 16
-#define F1_RESPONSE_DELAY 16
-#define F2_RESPONSE_DELAY F0_RESPONSE_DELAY
-
-#define CMDLEN 4
-
-#define DWORDMODE_ON (sd->chip == BCM4329_CHIP_ID) && (sd->chiprev == 2) && (sd->dwordmode == TRUE)
-
-/* Globals */
-uint sd_msglevel = 0;
-
-uint sd_hiok = FALSE; /* Use hi-speed mode if available? */
-uint sd_sdmode = SDIOH_MODE_SPI; /* Use SD4 mode by default */
-uint sd_f2_blocksize = 64; /* Default blocksize */
-
-
-uint sd_divisor = 2;
-uint sd_power = 1; /* Default to SD Slot powered ON */
-uint sd_clock = 1; /* Default to SD Clock turned ON */
-uint sd_crc = 0; /* Default to SPI CRC Check turned OFF */
-
-uint8 spi_outbuf[SPI_MAX_PKT_LEN];
-uint8 spi_inbuf[SPI_MAX_PKT_LEN];
-
-/* 128bytes buffer is enough to clear data-not-available and program response-delay F0 bits
- * assuming we will not exceed F0 response delay > 100 bytes at 48MHz.
- */
-#define BUF2_PKT_LEN 128
-uint8 spi_outbuf2[BUF2_PKT_LEN];
-uint8 spi_inbuf2[BUF2_PKT_LEN];
-
-/* Prototypes */
-static bool bcmspi_test_card(sdioh_info_t *sd);
-static bool bcmspi_host_device_init_adapt(sdioh_info_t *sd);
-static int bcmspi_set_highspeed_mode(sdioh_info_t *sd, bool hsmode);
-static int bcmspi_cmd_issue(sdioh_info_t *sd, bool use_dma, uint32 cmd_arg,
- uint32 *data, uint32 datalen);
-static int bcmspi_card_regread(sdioh_info_t *sd, int func, uint32 regaddr,
- int regsize, uint32 *data);
-static int bcmspi_card_regwrite(sdioh_info_t *sd, int func, uint32 regaddr,
- int regsize, uint32 data);
-static int bcmspi_card_bytewrite(sdioh_info_t *sd, int func, uint32 regaddr,
- uint8 *data);
-static int bcmspi_driver_init(sdioh_info_t *sd);
-static int bcmspi_card_buf(sdioh_info_t *sd, int rw, int func, bool fifo,
- uint32 addr, int nbytes, uint32 *data);
-static int bcmspi_card_regread_fixedaddr(sdioh_info_t *sd, int func, uint32 regaddr, int regsize,
- uint32 *data);
-static void bcmspi_cmd_getdstatus(sdioh_info_t *sd, uint32 *dstatus_buffer);
-static int bcmspi_update_stats(sdioh_info_t *sd, uint32 cmd_arg);
-
-/*
- * Public entry points & extern's
- */
-extern sdioh_info_t *
-sdioh_attach(osl_t *osh, void *bar0, uint irq)
-{
- sdioh_info_t *sd;
-
- sd_trace(("%s\n", __FUNCTION__));
- if ((sd = (sdioh_info_t *)MALLOC(osh, sizeof(sdioh_info_t))) == NULL) {
- sd_err(("%s: out of memory, malloced %d bytes\n", __FUNCTION__, MALLOCED(osh)));
- return NULL;
- }
- bzero((char *)sd, sizeof(sdioh_info_t));
- sd->osh = osh;
- if (spi_osinit(sd) != 0) {
- sd_err(("%s: spi_osinit() failed\n", __FUNCTION__));
- MFREE(sd->osh, sd, sizeof(sdioh_info_t));
- return NULL;
- }
-
- sd->bar0 = bar0;
- sd->irq = irq;
- sd->intr_handler = NULL;
- sd->intr_handler_arg = NULL;
- sd->intr_handler_valid = FALSE;
-
- /* Set defaults */
- sd->use_client_ints = TRUE;
- sd->sd_use_dma = FALSE; /* DMA Not supported */
-
- /* Spi device default is 16bit mode, change to 4 when device is changed to 32bit
- * mode
- */
- sd->wordlen = 2;
-
- if (!spi_hw_attach(sd)) {
- sd_err(("%s: spi_hw_attach() failed\n", __FUNCTION__));
- spi_osfree(sd);
- MFREE(sd->osh, sd, sizeof(sdioh_info_t));
- return (NULL);
- }
-
- if (bcmspi_driver_init(sd) != SUCCESS) {
- sd_err(("%s: bcmspi_driver_init() failed()\n", __FUNCTION__));
- spi_hw_detach(sd);
- spi_osfree(sd);
- MFREE(sd->osh, sd, sizeof(sdioh_info_t));
- return (NULL);
- }
-
- if (spi_register_irq(sd, irq) != SUCCESS) {
- sd_err(("%s: spi_register_irq() failed for irq = %d\n", __FUNCTION__, irq));
- spi_hw_detach(sd);
- spi_osfree(sd);
- MFREE(sd->osh, sd, sizeof(sdioh_info_t));
- return (NULL);
- }
-
- 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) {
- sd_err(("%s: detaching from hardware\n", __FUNCTION__));
- spi_free_irq(sd->irq, sd);
- spi_hw_detach(sd);
- spi_osfree(sd);
- MFREE(sd->osh, sd, sizeof(sdioh_info_t));
- }
- return SDIOH_API_RC_SUCCESS;
-}
-
-/* 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__));
- sd->intr_handler = fn;
- sd->intr_handler_arg = argh;
- sd->intr_handler_valid = TRUE;
- return SDIOH_API_RC_SUCCESS;
-}
-
-extern SDIOH_API_RC
-sdioh_interrupt_deregister(sdioh_info_t *sd)
-{
- sd_trace(("%s: Entering\n", __FUNCTION__));
- sd->intr_handler_valid = FALSE;
- sd->intr_handler = NULL;
- sd->intr_handler_arg = NULL;
- 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
-
-extern SDIOH_API_RC
-sdioh_query_device(sdioh_info_t *sd)
-{
- /* Return a BRCM ID appropriate to the dongle class */
- return (sd->num_funcs > 1) ? BCM4329_D11NDUAL_ID : BCM4318_D11G_ID;
-}
-
-/* Provide dstatus bits of spi-transaction for dhd layers. */
-extern uint32
-sdioh_get_dstatus(sdioh_info_t *sd)
-{
- return sd->card_dstatus;
-}
-
-extern void
-sdioh_chipinfo(sdioh_info_t *sd, uint32 chip, uint32 chiprev)
-{
- sd->chip = chip;
- sd->chiprev = chiprev;
-}
-
-extern void
-sdioh_dwordmode(sdioh_info_t *sd, bool set)
-{
- uint8 reg = 0;
- int status;
-
- if ((status = sdioh_request_byte(sd, SDIOH_READ, SPI_FUNC_0, SPID_STATUS_ENABLE, ®)) !=
- SUCCESS) {
- sd_err(("%s: Failed to set dwordmode in gSPI\n", __FUNCTION__));
- return;
- }
-
- if (set) {
- reg |= DWORD_PKT_LEN_EN;
- sd->dwordmode = TRUE;
- sd->client_block_size[SPI_FUNC_2] = 4096; /* h2spi's limit is 4KB, we support 8KB */
- } else {
- reg &= ~DWORD_PKT_LEN_EN;
- sd->dwordmode = FALSE;
- sd->client_block_size[SPI_FUNC_2] = 2048;
- }
-
- if ((status = sdioh_request_byte(sd, SDIOH_WRITE, SPI_FUNC_0, SPID_STATUS_ENABLE, ®)) !=
- SUCCESS) {
- sd_err(("%s: Failed to set dwordmode in gSPI\n", __FUNCTION__));
- return;
- }
-}
-
-
-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_SPIERRSTATS,
- IOV_RESP_DELAY_ALL
-};
-
-const bcm_iovar_t sdioh_iovars[] = {
- {"sd_msglevel", IOV_MSGLEVEL, 0, IOVT_UINT32, 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},
- {"spi_errstats", IOV_SPIERRSTATS, 0, IOVT_BUFFER, sizeof(struct spierrstats_t) },
- {"spi_respdelay", IOV_RESP_DELAY_ALL, 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;
-/*
- sdioh_regs_t *regs;
-*/
-
- 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;
-
- 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_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_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):
- 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;
- if (!spi_start_clock(si, (uint16)sd_divisor)) {
- sd_err(("%s: set clock failed\n", __FUNCTION__));
- bcmerror = BCME_ERROR;
- }
- 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;
-
- if (!bcmspi_set_highspeed_mode(si, (bool)sd_hiok)) {
- sd_err(("%s: Failed changing highspeed mode to %d.\n",
- __FUNCTION__, sd_hiok));
- bcmerror = BCME_ERROR;
- return ERROR;
- }
- 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)si->local_intrcount;
- bcopy(&int_val, arg, val_size);
- break;
- case IOV_GVAL(IOV_DEVREG):
- {
- sdreg_t *sd_ptr = (sdreg_t *)params;
- uint8 data;
-
- 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;
- }
-
-
- case IOV_GVAL(IOV_SPIERRSTATS):
- {
- bcopy(&si->spierrstats, arg, sizeof(struct spierrstats_t));
- break;
- }
-
- case IOV_SVAL(IOV_SPIERRSTATS):
- {
- bzero(&si->spierrstats, sizeof(struct spierrstats_t));
- break;
- }
-
- case IOV_GVAL(IOV_RESP_DELAY_ALL):
- int_val = (int32)si->resp_delay_all;
- bcopy(&int_val, arg, val_size);
- break;
-
- case IOV_SVAL(IOV_RESP_DELAY_ALL):
- si->resp_delay_all = (bool)int_val;
- int_val = STATUS_ENABLE|INTR_WITH_STATUS;
- if (si->resp_delay_all)
- int_val |= RESP_DELAY_ALL;
- else {
- if (bcmspi_card_regwrite(si, SPI_FUNC_0, SPID_RESPONSE_DELAY, 1,
- F1_RESPONSE_DELAY) != SUCCESS) {
- sd_err(("%s: Unable to set response delay.\n", __FUNCTION__));
- bcmerror = BCME_SDIO_ERROR;
- break;
- }
- }
-
- if (bcmspi_card_regwrite(si, SPI_FUNC_0, SPID_STATUS_ENABLE, 1, int_val)
- != SUCCESS) {
- sd_err(("%s: Unable to set response delay.\n", __FUNCTION__));
- bcmerror = BCME_SDIO_ERROR;
- break;
- }
- break;
-
- default:
- bcmerror = BCME_UNSUPPORTED;
- break;
- }
-exit:
-
- return bcmerror;
-}
-
-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;
-
- if ((fnc_num == SPI_FUNC_1) && (addr == SBSDIO_FUNC1_FRAMECTRL)) {
- uint8 dummy_data;
- status = sdioh_cfg_read(sd, fnc_num, addr, &dummy_data);
- if (status) {
- sd_err(("sdioh_cfg_read() failed.\n"));
- return status;
- }
- }
-
- status = sdioh_request_byte(sd, SDIOH_WRITE, fnc_num, addr, data);
- return status;
-}
-
-extern SDIOH_API_RC
-sdioh_cis_read(sdioh_info_t *sd, uint func, uint8 *cisd, uint32 length)
-{
- uint32 count;
- int offset;
- uint32 cis_byte;
- uint16 *cis = (uint16 *)cisd;
- uint bar0 = SI_ENUM_BASE;
- int status;
- uint8 data;
-
- sd_trace(("%s: Func %d\n", __FUNCTION__, func));
-
- spi_lock(sd);
-
- /* Set sb window address to 0x18000000 */
- data = (bar0 >> 8) & SBSDIO_SBADDRLOW_MASK;
- status = bcmspi_card_bytewrite(sd, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW, &data);
- if (status == SUCCESS) {
- data = (bar0 >> 16) & SBSDIO_SBADDRMID_MASK;
- status = bcmspi_card_bytewrite(sd, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID, &data);
- } else {
- sd_err(("%s: Unable to set sb-addr-windows\n", __FUNCTION__));
- spi_unlock(sd);
- return (BCME_ERROR);
- }
- if (status == SUCCESS) {
- data = (bar0 >> 24) & SBSDIO_SBADDRHIGH_MASK;
- status = bcmspi_card_bytewrite(sd, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH, &data);
- } else {
- sd_err(("%s: Unable to set sb-addr-windows\n", __FUNCTION__));
- spi_unlock(sd);
- return (BCME_ERROR);
- }
-
- offset = CC_OTP; /* OTP offset in chipcommon. */
- for (count = 0; count < length/2; count++) {
- if (bcmspi_card_regread (sd, SDIO_FUNC_1, offset, 2, &cis_byte) < 0) {
- sd_err(("%s: regread failed: Can't read CIS\n", __FUNCTION__));
- spi_unlock(sd);
- return (BCME_ERROR);
- }
-
- *cis = (uint16)cis_byte;
- cis++;
- offset += 2;
- }
-
- spi_unlock(sd);
-
- return (BCME_OK);
-}
-
-extern SDIOH_API_RC
-sdioh_request_byte(sdioh_info_t *sd, uint rw, uint func, uint regaddr, uint8 *byte)
-{
- int status;
- uint32 cmd_arg;
- uint32 dstatus;
- uint32 data = (uint32)(*byte);
-
- spi_lock(sd);
-
- cmd_arg = 0;
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1); /* Incremental access */
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, rw == SDIOH_READ ? 0 : 1);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, 1);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
- sd_trace(("%s: rw=%d, func=%d, regaddr=0x%08x, data=0x%x\n", __FUNCTION__, rw, func,
- regaddr, data));
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma,
- cmd_arg, &data, 1)) != SUCCESS) {
- spi_unlock(sd);
- return status;
- }
-
- if (rw == SDIOH_READ)
- *byte = (uint8)data;
-
- bcmspi_cmd_getdstatus(sd, &dstatus);
- if (dstatus)
- sd_trace(("dstatus =0x%x\n", dstatus));
-
- spi_unlock(sd);
- return SDIOH_API_RC_SUCCESS;
-}
-
-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 status;
-
- spi_lock(sd);
-
- if (rw == SDIOH_READ)
- status = bcmspi_card_regread(sd, func, addr, nbytes, word);
- else
- status = bcmspi_card_regwrite(sd, func, addr, nbytes, *word);
-
- spi_unlock(sd);
- return (status == SUCCESS ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL);
-}
-
-extern SDIOH_API_RC
-sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint rw, uint func,
- uint addr, uint reg_width, uint buflen_u, uint8 *buffer, void *pkt)
-{
- int len;
- int buflen = (int)buflen_u;
- bool fifo = (fix_inc == SDIOH_DATA_FIX);
-
- spi_lock(sd);
-
- ASSERT(reg_width == 4);
- ASSERT(buflen_u < (1 << 30));
- ASSERT(sd->client_block_size[func]);
-
- sd_data(("%s: %c len %d r_cnt %d t_cnt %d, pkt @0x%p\n",
- __FUNCTION__, rw == SDIOH_READ ? 'R' : 'W',
- buflen_u, sd->r_cnt, sd->t_cnt, pkt));
-
- /* Break buffer down into blocksize chunks. */
- while (buflen > 0) {
- len = MIN(sd->client_block_size[func], buflen);
- if (bcmspi_card_buf(sd, rw, func, fifo, addr, len, (uint32 *)buffer) != SUCCESS) {
- sd_err(("%s: bcmspi_card_buf %s failed\n",
- __FUNCTION__, rw == SDIOH_READ ? "Read" : "Write"));
- spi_unlock(sd);
- return SDIOH_API_RC_FAIL;
- }
- buffer += len;
- buflen -= len;
- if (!fifo)
- addr += len;
- }
- spi_unlock(sd);
- return SDIOH_API_RC_SUCCESS;
-}
-
-/* This function allows write to gspi bus when another rd/wr function is deep down the call stack.
- * Its main aim is to have simpler spi writes rather than recursive writes.
- * e.g. When there is a need to program response delay on the fly after detecting the SPI-func
- * this call will allow to program the response delay.
- */
-static int
-bcmspi_card_byterewrite(sdioh_info_t *sd, int func, uint32 regaddr, uint8 byte)
-{
- uint32 cmd_arg;
- uint32 datalen = 1;
- uint32 hostlen;
-
- cmd_arg = 0;
-
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, 1);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1); /* Incremental access */
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, datalen);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
-
-
- /* Set up and issue the SPI command. MSByte goes out on bus first. Increase datalen
- * according to the wordlen mode(16/32bit) the device is in.
- */
- ASSERT(sd->wordlen == 4 || sd->wordlen == 2);
- datalen = ROUNDUP(datalen, sd->wordlen);
-
- /* Start by copying command in the spi-outbuffer */
- if (sd->wordlen == 4) { /* 32bit spid */
- *(uint32 *)spi_outbuf2 = bcmswap32(cmd_arg);
- if (datalen & 0x3)
- datalen += (4 - (datalen & 0x3));
- } else if (sd->wordlen == 2) { /* 16bit spid */
- *(uint16 *)spi_outbuf2 = bcmswap16(cmd_arg & 0xffff);
- *(uint16 *)&spi_outbuf2[2] = bcmswap16((cmd_arg & 0xffff0000) >> 16);
- if (datalen & 0x1)
- datalen++;
- } else {
- sd_err(("%s: Host is %d bit spid, could not create SPI command.\n",
- __FUNCTION__, 8 * sd->wordlen));
- return ERROR;
- }
-
- /* for Write, put the data into the output buffer */
- if (datalen != 0) {
- if (sd->wordlen == 4) { /* 32bit spid */
- *(uint32 *)&spi_outbuf2[CMDLEN] = bcmswap32(byte);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- *(uint16 *)&spi_outbuf2[CMDLEN] = bcmswap16(byte & 0xffff);
- *(uint16 *)&spi_outbuf2[CMDLEN + 2] =
- bcmswap16((byte & 0xffff0000) >> 16);
- }
- }
-
- /* +4 for cmd, +4 for dstatus */
- hostlen = datalen + 8;
- hostlen += (4 - (hostlen & 0x3));
- spi_sendrecv(sd, spi_outbuf2, spi_inbuf2, hostlen);
-
- /* Last 4bytes are dstatus. Device is configured to return status bits. */
- if (sd->wordlen == 4) { /* 32bit spid */
- sd->card_dstatus = bcmswap32(*(uint32 *)&spi_inbuf2[datalen + CMDLEN ]);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- sd->card_dstatus = (bcmswap16(*(uint16 *)&spi_inbuf2[datalen + CMDLEN ]) |
- (bcmswap16(*(uint16 *)&spi_inbuf2[datalen + CMDLEN + 2]) << 16));
- } else {
- sd_err(("%s: Host is %d bit machine, could not read SPI dstatus.\n",
- __FUNCTION__, 8 * sd->wordlen));
- return ERROR;
- }
-
- if (sd->card_dstatus)
- sd_trace(("dstatus after byte rewrite = 0x%x\n", sd->card_dstatus));
-
- return (BCME_OK);
-}
-
-/* Program the response delay corresponding to the spi function */
-static int
-bcmspi_prog_resp_delay(sdioh_info_t *sd, int func, uint8 resp_delay)
-{
- if (sd->resp_delay_all == FALSE)
- return (BCME_OK);
-
- if (sd->prev_fun == func)
- return (BCME_OK);
-
- if (F0_RESPONSE_DELAY == F1_RESPONSE_DELAY)
- return (BCME_OK);
-
- bcmspi_card_byterewrite(sd, SPI_FUNC_0, SPID_RESPONSE_DELAY, resp_delay);
-
- /* Remember function for which to avoid reprogramming resp-delay in next iteration */
- sd->prev_fun = func;
-
- return (BCME_OK);
-
-}
-
-#define GSPI_RESYNC_PATTERN 0x0
-
-/* A resync pattern is a 32bit MOSI line with all zeros. Its a special command in gSPI.
- * It resets the spi-bkplane logic so that all F1 related ping-pong buffer logic is
- * synchronised and all queued resuests are cancelled.
- */
-static int
-bcmspi_resync_f1(sdioh_info_t *sd)
-{
- uint32 cmd_arg = GSPI_RESYNC_PATTERN, data = 0, datalen = 0;
-
-
- /* Set up and issue the SPI command. MSByte goes out on bus first. Increase datalen
- * according to the wordlen mode(16/32bit) the device is in.
- */
- ASSERT(sd->wordlen == 4 || sd->wordlen == 2);
- datalen = ROUNDUP(datalen, sd->wordlen);
-
- /* Start by copying command in the spi-outbuffer */
- *(uint32 *)spi_outbuf2 = cmd_arg;
-
- /* for Write, put the data into the output buffer */
- *(uint32 *)&spi_outbuf2[CMDLEN] = data;
-
- /* +4 for cmd, +4 for dstatus */
- spi_sendrecv(sd, spi_outbuf2, spi_inbuf2, datalen + 8);
-
- /* Last 4bytes are dstatus. Device is configured to return status bits. */
- if (sd->wordlen == 4) { /* 32bit spid */
- sd->card_dstatus = bcmswap32(*(uint32 *)&spi_inbuf2[datalen + CMDLEN ]);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- sd->card_dstatus = (bcmswap16(*(uint16 *)&spi_inbuf2[datalen + CMDLEN ]) |
- (bcmswap16(*(uint16 *)&spi_inbuf2[datalen + CMDLEN + 2]) << 16));
- } else {
- sd_err(("%s: Host is %d bit machine, could not read SPI dstatus.\n",
- __FUNCTION__, 8 * sd->wordlen));
- return ERROR;
- }
-
- if (sd->card_dstatus)
- sd_trace(("dstatus after resync pattern write = 0x%x\n", sd->card_dstatus));
-
- return (BCME_OK);
-}
-
-uint32 dstatus_count = 0;
-
-static int
-bcmspi_update_stats(sdioh_info_t *sd, uint32 cmd_arg)
-{
- uint32 dstatus = sd->card_dstatus;
- struct spierrstats_t *spierrstats = &sd->spierrstats;
- int err = SUCCESS;
-
- sd_trace(("cmd = 0x%x, dstatus = 0x%x\n", cmd_arg, dstatus));
-
- /* Store dstatus of last few gSPI transactions */
- spierrstats->dstatus[dstatus_count % NUM_PREV_TRANSACTIONS] = dstatus;
- spierrstats->spicmd[dstatus_count % NUM_PREV_TRANSACTIONS] = cmd_arg;
- dstatus_count++;
-
- if (sd->card_init_done == FALSE)
- return err;
-
- if (dstatus & STATUS_DATA_NOT_AVAILABLE) {
- spierrstats->dna++;
- sd_trace(("Read data not available on F1 addr = 0x%x\n",
- GFIELD(cmd_arg, SPI_REG_ADDR)));
- /* Clear dna bit */
- bcmspi_card_byterewrite(sd, SPI_FUNC_0, SPID_INTR_REG, DATA_UNAVAILABLE);
- }
-
- if (dstatus & STATUS_UNDERFLOW) {
- spierrstats->rdunderflow++;
- sd_err(("FIFO underflow happened due to current F2 read command.\n"));
- }
-
- if (dstatus & STATUS_OVERFLOW) {
- spierrstats->wroverflow++;
- sd_err(("FIFO overflow happened due to current (F1/F2) write command.\n"));
- if ((sd->chip == BCM4329_CHIP_ID) && (sd->chiprev == 0)) {
- bcmspi_card_byterewrite(sd, SPI_FUNC_0, SPID_INTR_REG, F1_OVERFLOW);
- bcmspi_resync_f1(sd);
- sd_err(("Recovering from F1 FIFO overflow.\n"));
- } else {
- err = ERROR_OF;
- }
- }
-
- if (dstatus & STATUS_F2_INTR) {
- spierrstats->f2interrupt++;
- sd_trace(("Interrupt from F2. SW should clear corresponding IntStatus bits\n"));
- }
-
- if (dstatus & STATUS_F3_INTR) {
- spierrstats->f3interrupt++;
- sd_err(("Interrupt from F3. SW should clear corresponding IntStatus bits\n"));
- }
-
- if (dstatus & STATUS_HOST_CMD_DATA_ERR) {
- spierrstats->hostcmddataerr++;
- sd_err(("Error in CMD or Host data, detected by CRC/Checksum (optional)\n"));
- }
-
- if (dstatus & STATUS_F2_PKT_AVAILABLE) {
- spierrstats->f2pktavailable++;
- sd_trace(("Packet is available/ready in F2 TX FIFO\n"));
- sd_trace(("Packet length = %d\n", sd->dwordmode ?
- ((dstatus & STATUS_F2_PKT_LEN_MASK) >> (STATUS_F2_PKT_LEN_SHIFT - 2)) :
- ((dstatus & STATUS_F2_PKT_LEN_MASK) >> STATUS_F2_PKT_LEN_SHIFT)));
- }
-
- if (dstatus & STATUS_F3_PKT_AVAILABLE) {
- spierrstats->f3pktavailable++;
- sd_err(("Packet is available/ready in F3 TX FIFO\n"));
- sd_err(("Packet length = %d\n",
- (dstatus & STATUS_F3_PKT_LEN_MASK) >> STATUS_F3_PKT_LEN_SHIFT));
- }
-
- return err;
-}
-
-extern int
-sdioh_abort(sdioh_info_t *sd, uint func)
-{
- return 0;
-}
-
-int
-sdioh_start(sdioh_info_t *sd, int stage)
-{
- return SUCCESS;
-}
-
-int
-sdioh_stop(sdioh_info_t *sd)
-{
- return SUCCESS;
-}
-
-
-
-/*
- * Private/Static work routines
- */
-static int
-bcmspi_host_init(sdioh_info_t *sd)
-{
-
- /* Default power on mode */
- sd->sd_mode = SDIOH_MODE_SPI;
- sd->polled_mode = TRUE;
- sd->host_init_done = TRUE;
- sd->card_init_done = FALSE;
- sd->adapter_slot = 1;
-
- return (SUCCESS);
-}
-
-static int
-get_client_blocksize(sdioh_info_t *sd)
-{
- uint32 regdata[2];
- int status;
-
- /* Find F1/F2/F3 max packet size */
- if ((status = bcmspi_card_regread(sd, 0, SPID_F1_INFO_REG,
- 8, regdata)) != SUCCESS) {
- return status;
- }
-
- sd_trace(("pkt_size regdata[0] = 0x%x, regdata[1] = 0x%x\n",
- regdata[0], regdata[1]));
-
- sd->client_block_size[1] = (regdata[0] & F1_MAX_PKT_SIZE) >> 2;
- sd_trace(("Func1 blocksize = %d\n", sd->client_block_size[1]));
- ASSERT(sd->client_block_size[1] == BLOCK_SIZE_F1);
-
- sd->client_block_size[2] = ((regdata[0] >> 16) & F2_MAX_PKT_SIZE) >> 2;
- sd_trace(("Func2 blocksize = %d\n", sd->client_block_size[2]));
- ASSERT(sd->client_block_size[2] == BLOCK_SIZE_F2);
-
- sd->client_block_size[3] = (regdata[1] & F3_MAX_PKT_SIZE) >> 2;
- sd_trace(("Func3 blocksize = %d\n", sd->client_block_size[3]));
- ASSERT(sd->client_block_size[3] == BLOCK_SIZE_F3);
-
- return 0;
-}
-
-static int
-bcmspi_client_init(sdioh_info_t *sd)
-{
- uint32 status_en_reg = 0;
- sd_trace(("%s: Powering up slot %d\n", __FUNCTION__, sd->adapter_slot));
-
-#ifdef HSMODE
- if (!spi_start_clock(sd, (uint16)sd_divisor)) {
- sd_err(("spi_start_clock failed\n"));
- return ERROR;
- }
-#else
- /* Start at ~400KHz clock rate for initialization */
- if (!spi_start_clock(sd, 128)) {
- sd_err(("spi_start_clock failed\n"));
- return ERROR;
- }
-#endif /* HSMODE */
-
- if (!bcmspi_host_device_init_adapt(sd)) {
- sd_err(("bcmspi_host_device_init_adapt failed\n"));
- return ERROR;
- }
-
- if (!bcmspi_test_card(sd)) {
- sd_err(("bcmspi_test_card failed\n"));
- return ERROR;
- }
-
- sd->num_funcs = SPI_MAX_IOFUNCS;
-
- get_client_blocksize(sd);
-
- /* Apply resync pattern cmd with all zeros to reset spi-bkplane F1 logic */
- bcmspi_resync_f1(sd);
-
- sd->dwordmode = FALSE;
-
- bcmspi_card_regread(sd, 0, SPID_STATUS_ENABLE, 1, &status_en_reg);
-
- sd_trace(("%s: Enabling interrupt with dstatus \n", __FUNCTION__));
- status_en_reg |= INTR_WITH_STATUS;
-
-
- if (bcmspi_card_regwrite(sd, SPI_FUNC_0, SPID_STATUS_ENABLE, 1,
- status_en_reg & 0xff) != SUCCESS) {
- sd_err(("%s: Unable to set response delay for all fun's.\n", __FUNCTION__));
- return ERROR;
- }
-
-
-#ifndef HSMODE
- /* After configuring for High-Speed mode, set the desired clock rate. */
- if (!spi_start_clock(sd, 4)) {
- sd_err(("spi_start_clock failed\n"));
- return ERROR;
- }
-#endif /* HSMODE */
-
- sd->card_init_done = TRUE;
-
-
- return SUCCESS;
-}
-
-static int
-bcmspi_set_highspeed_mode(sdioh_info_t *sd, bool hsmode)
-{
- uint32 regdata;
- int status;
-
- if ((status = bcmspi_card_regread(sd, 0, SPID_CONFIG,
- 4, ®data)) != SUCCESS)
- return status;
-
- sd_trace(("In %s spih-ctrl = 0x%x \n", __FUNCTION__, regdata));
-
-
- if (hsmode == TRUE) {
- sd_trace(("Attempting to enable High-Speed mode.\n"));
-
- if (regdata & HIGH_SPEED_MODE) {
- sd_trace(("Device is already in High-Speed mode.\n"));
- return status;
- } else {
- regdata |= HIGH_SPEED_MODE;
- sd_trace(("Writing %08x to device at %08x\n", regdata, SPID_CONFIG));
- if ((status = bcmspi_card_regwrite(sd, 0, SPID_CONFIG,
- 4, regdata)) != SUCCESS) {
- return status;
- }
- }
- } else {
- sd_trace(("Attempting to disable High-Speed mode.\n"));
-
- if (regdata & HIGH_SPEED_MODE) {
- regdata &= ~HIGH_SPEED_MODE;
- sd_trace(("Writing %08x to device at %08x\n", regdata, SPID_CONFIG));
- if ((status = bcmspi_card_regwrite(sd, 0, SPID_CONFIG,
- 4, regdata)) != SUCCESS)
- return status;
- }
- else {
- sd_trace(("Device is already in Low-Speed mode.\n"));
- return status;
- }
- }
-
- spi_controller_highspeed_mode(sd, hsmode);
-
- return TRUE;
-}
-
-#define bcmspi_find_curr_mode(sd) { \
- sd->wordlen = 2; \
- status = bcmspi_card_regread_fixedaddr(sd, 0, SPID_TEST_READ, 4, ®data); \
- regdata &= 0xff; \
- if ((regdata == 0xad) || (regdata == 0x5b) || \
- (regdata == 0x5d) || (regdata == 0x5a)) \
- break; \
- sd->wordlen = 4; \
- status = bcmspi_card_regread_fixedaddr(sd, 0, SPID_TEST_READ, 4, ®data); \
- regdata &= 0xff; \
- if ((regdata == 0xad) || (regdata == 0x5b) || \
- (regdata == 0x5d) || (regdata == 0x5a)) \
- break; \
- sd_trace(("Silicon testability issue: regdata = 0x%x." \
- " Expected 0xad, 0x5a, 0x5b or 0x5d.\n", regdata)); \
- OSL_DELAY(100000); \
-}
-
-#define INIT_ADAPT_LOOP 100
-
-/* Adapt clock-phase-speed-bitwidth between host and device */
-static bool
-bcmspi_host_device_init_adapt(sdioh_info_t *sd)
-{
- uint32 wrregdata, regdata = 0;
- int status;
- int i;
-
- /* Due to a silicon testability issue, the first command from the Host
- * to the device will get corrupted (first bit will be lost). So the
- * Host should poll the device with a safe read request. ie: The Host
- * should try to read F0 addr 0x14 using the Fixed address mode
- * (This will prevent a unintended write command to be detected by device)
- */
- for (i = 0; i < INIT_ADAPT_LOOP; i++) {
- /* If device was not power-cycled it will stay in 32bit mode with
- * response-delay-all bit set. Alternate the iteration so that
- * read either with or without response-delay for F0 to succeed.
- */
- bcmspi_find_curr_mode(sd);
- sd->resp_delay_all = (i & 0x1) ? TRUE : FALSE;
-
- bcmspi_find_curr_mode(sd);
- sd->dwordmode = TRUE;
-
- bcmspi_find_curr_mode(sd);
- sd->dwordmode = FALSE;
- }
-
- /* Bail out, device not detected */
- if (i == INIT_ADAPT_LOOP)
- return FALSE;
-
- /* Softreset the spid logic */
- if ((sd->dwordmode) || (sd->wordlen == 4)) {
- bcmspi_card_regwrite(sd, 0, SPID_RESET_BP, 1, RESET_ON_WLAN_BP_RESET|RESET_SPI);
- bcmspi_card_regread(sd, 0, SPID_RESET_BP, 1, ®data);
- sd_trace(("reset reg read = 0x%x\n", regdata));
- sd_trace(("dwordmode = %d, wordlen = %d, resp_delay_all = %d\n", sd->dwordmode,
- sd->wordlen, sd->resp_delay_all));
- /* Restore default state after softreset */
- sd->wordlen = 2;
- sd->dwordmode = FALSE;
- }
-
- if (sd->wordlen == 4) {
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_READ, 4, ®data)) !=
- SUCCESS)
- return FALSE;
- if (regdata == TEST_RO_DATA_32BIT_LE) {
- sd_trace(("Spid is already in 32bit LE mode. Value read = 0x%x\n",
- regdata));
- sd_trace(("Spid power was left on.\n"));
- } else {
- sd_err(("Spid power was left on but signature read failed."
- " Value read = 0x%x\n", regdata));
- return FALSE;
- }
- } else {
- sd->wordlen = 2;
-
-#define CTRL_REG_DEFAULT 0x00010430 /* according to the host m/c */
-
- wrregdata = (CTRL_REG_DEFAULT);
- sd->resp_delay_all = TRUE;
- if (sd->resp_delay_all == TRUE) {
- /* Enable response delay for all */
- wrregdata |= (RESP_DELAY_ALL << 16);
- /* Program response delay value */
- wrregdata &= 0xffff00ff;
- wrregdata |= (F1_RESPONSE_DELAY << 8);
- sd->prev_fun = SPI_FUNC_1;
- bcmspi_card_regwrite(sd, 0, SPID_CONFIG, 4, wrregdata);
- }
-
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_READ, 4, ®data)) != SUCCESS)
- return FALSE;
- sd_trace(("(we are still in 16bit mode) 32bit READ LE regdata = 0x%x\n", regdata));
-
-#ifndef HSMODE
- wrregdata |= (CLOCK_PHASE | CLOCK_POLARITY);
- wrregdata &= ~HIGH_SPEED_MODE;
- bcmspi_card_regwrite(sd, 0, SPID_CONFIG, 4, wrregdata);
-#endif /* HSMODE */
-
- for (i = 0; i < INIT_ADAPT_LOOP; i++) {
- if ((regdata == 0xfdda7d5b) || (regdata == 0xfdda7d5a)) {
- sd_trace(("0xfeedbead was leftshifted by 1-bit.\n"));
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_READ, 4,
- ®data)) != SUCCESS)
- return FALSE;
- }
- OSL_DELAY(1000);
- }
-
-
- /* Change to host controller intr-polarity of active-low */
- wrregdata &= ~INTR_POLARITY;
- sd_trace(("(we are still in 16bit mode) 32bit Write LE reg-ctrl-data = 0x%x\n",
- wrregdata));
- /* Change to 32bit mode */
- wrregdata |= WORD_LENGTH_32;
- bcmspi_card_regwrite(sd, 0, SPID_CONFIG, 4, wrregdata);
-
- /* Change command/data packaging in 32bit LE mode */
- sd->wordlen = 4;
-
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_READ, 4, ®data)) != SUCCESS)
- return FALSE;
-
- if (regdata == TEST_RO_DATA_32BIT_LE) {
- sd_trace(("Read spid passed. Value read = 0x%x\n", regdata));
- sd_trace(("Spid had power-on cycle OR spi was soft-resetted \n"));
- } else {
- sd_err(("Stale spid reg values read as it was kept powered. Value read ="
- "0x%x\n", regdata));
- return FALSE;
- }
- }
-
-
- return TRUE;
-}
-
-static bool
-bcmspi_test_card(sdioh_info_t *sd)
-{
- uint32 regdata;
- int status;
-
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_READ, 4, ®data)) != SUCCESS)
- return FALSE;
-
- if (regdata == (TEST_RO_DATA_32BIT_LE))
- sd_trace(("32bit LE regdata = 0x%x\n", regdata));
- else {
- sd_trace(("Incorrect 32bit LE regdata = 0x%x\n", regdata));
- return FALSE;
- }
-
-
-#define RW_PATTERN1 0xA0A1A2A3
-#define RW_PATTERN2 0x4B5B6B7B
-
- regdata = RW_PATTERN1;
- if ((status = bcmspi_card_regwrite(sd, 0, SPID_TEST_RW, 4, regdata)) != SUCCESS)
- return FALSE;
- regdata = 0;
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_RW, 4, ®data)) != SUCCESS)
- return FALSE;
- if (regdata != RW_PATTERN1) {
- sd_err(("Write-Read spid failed. Value wrote = 0x%x, Value read = 0x%x\n",
- RW_PATTERN1, regdata));
- return FALSE;
- } else
- sd_trace(("R/W spid passed. Value read = 0x%x\n", regdata));
-
- regdata = RW_PATTERN2;
- if ((status = bcmspi_card_regwrite(sd, 0, SPID_TEST_RW, 4, regdata)) != SUCCESS)
- return FALSE;
- regdata = 0;
- if ((status = bcmspi_card_regread(sd, 0, SPID_TEST_RW, 4, ®data)) != SUCCESS)
- return FALSE;
- if (regdata != RW_PATTERN2) {
- sd_err(("Write-Read spid failed. Value wrote = 0x%x, Value read = 0x%x\n",
- RW_PATTERN2, regdata));
- return FALSE;
- } else
- sd_trace(("R/W spid passed. Value read = 0x%x\n", regdata));
-
- return TRUE;
-}
-
-static int
-bcmspi_driver_init(sdioh_info_t *sd)
-{
- sd_trace(("%s\n", __FUNCTION__));
- if ((bcmspi_host_init(sd)) != SUCCESS) {
- return ERROR;
- }
-
- if (bcmspi_client_init(sd) != SUCCESS) {
- return ERROR;
- }
-
- return SUCCESS;
-}
-
-/* Read device reg */
-static int
-bcmspi_card_regread(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 *data)
-{
- int status;
- uint32 cmd_arg, dstatus;
-
- ASSERT(regsize);
-
- if (func == 2)
- sd_trace(("Reg access on F2 will generate error indication in dstatus bits.\n"));
-
- cmd_arg = 0;
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, 0);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1); /* Incremental access */
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, regsize == BLOCK_SIZE_F2 ? 0 : regsize);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
- sd_trace(("%s: rw=%d, func=%d, regaddr=0x%08x, data=0x%x\n", __FUNCTION__, 0, func,
- regaddr, *data));
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma, cmd_arg, data, regsize))
- != SUCCESS)
- return status;
-
- bcmspi_cmd_getdstatus(sd, &dstatus);
- if (dstatus)
- sd_trace(("dstatus =0x%x\n", dstatus));
-
- return SUCCESS;
-}
-
-static int
-bcmspi_card_regread_fixedaddr(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 *data)
-{
-
- int status;
- uint32 cmd_arg;
- uint32 dstatus;
-
- ASSERT(regsize);
-
- if (func == 2)
- sd_trace(("Reg access on F2 will generate error indication in dstatus bits.\n"));
-
- cmd_arg = 0;
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, 0);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 0); /* Fixed access */
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, regsize);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma, cmd_arg, data, regsize))
- != SUCCESS)
- return status;
-
- sd_trace(("%s: rw=%d, func=%d, regaddr=0x%08x, data=0x%x\n", __FUNCTION__, 0, func,
- regaddr, *data));
-
- bcmspi_cmd_getdstatus(sd, &dstatus);
- sd_trace(("dstatus =0x%x\n", dstatus));
- return SUCCESS;
-}
-
-/* write a device register */
-static int
-bcmspi_card_regwrite(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 data)
-{
- int status;
- uint32 cmd_arg, dstatus;
-
- ASSERT(regsize);
-
- cmd_arg = 0;
-
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, 1);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1); /* Incremental access */
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, regsize == BLOCK_SIZE_F2 ? 0 : regsize);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
- sd_trace(("%s: rw=%d, func=%d, regaddr=0x%08x, data=0x%x\n", __FUNCTION__, 1, func,
- regaddr, data));
-
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma, cmd_arg, &data, regsize))
- != SUCCESS)
- return status;
-
- bcmspi_cmd_getdstatus(sd, &dstatus);
- if (dstatus)
- sd_trace(("dstatus =0x%x\n", dstatus));
-
- return SUCCESS;
-}
-
-/* write a device register - 1 byte */
-static int
-bcmspi_card_bytewrite(sdioh_info_t *sd, int func, uint32 regaddr, uint8 *byte)
-{
- int status;
- uint32 cmd_arg;
- uint32 dstatus;
- uint32 data = (uint32)(*byte);
-
- cmd_arg = 0;
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1); /* Incremental access */
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, regaddr);
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, 1);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, 1);
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
- sd_trace(("%s: func=%d, regaddr=0x%08x, data=0x%x\n", __FUNCTION__, func,
- regaddr, data));
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma,
- cmd_arg, &data, 1)) != SUCCESS) {
- return status;
- }
-
- bcmspi_cmd_getdstatus(sd, &dstatus);
- if (dstatus)
- sd_trace(("dstatus =0x%x\n", dstatus));
-
- return SUCCESS;
-}
-
-void
-bcmspi_cmd_getdstatus(sdioh_info_t *sd, uint32 *dstatus_buffer)
-{
- *dstatus_buffer = sd->card_dstatus;
-}
-
-/* 'data' is of type uint32 whereas other buffers are of type uint8 */
-static int
-bcmspi_cmd_issue(sdioh_info_t *sd, bool use_dma, uint32 cmd_arg,
- uint32 *data, uint32 datalen)
-{
- uint32 i, j;
- uint8 resp_delay = 0;
- int err = SUCCESS;
- uint32 hostlen;
- uint32 spilen = 0;
- uint32 dstatus_idx = 0;
- uint16 templen, buslen, len, *ptr = NULL;
-
- sd_trace(("spi cmd = 0x%x\n", cmd_arg));
-
- if (DWORDMODE_ON) {
- spilen = GFIELD(cmd_arg, SPI_LEN);
- if ((GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_0) ||
- (GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_1))
- dstatus_idx = spilen * 3;
-
- if ((GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_2) &&
- (GFIELD(cmd_arg, SPI_RW_FLAG) == 1)) {
- spilen = spilen << 2;
- dstatus_idx = (spilen % 16) ? (16 - (spilen % 16)) : 0;
- /* convert len to mod16 size */
- spilen = ROUNDUP(spilen, 16);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, (spilen >> 2));
- }
- }
-
- /* Set up and issue the SPI command. MSByte goes out on bus first. Increase datalen
- * according to the wordlen mode(16/32bit) the device is in.
- */
- if (sd->wordlen == 4) { /* 32bit spid */
- *(uint32 *)spi_outbuf = bcmswap32(cmd_arg);
- if (datalen & 0x3)
- datalen += (4 - (datalen & 0x3));
- } else if (sd->wordlen == 2) { /* 16bit spid */
- *(uint16 *)spi_outbuf = bcmswap16(cmd_arg & 0xffff);
- *(uint16 *)&spi_outbuf[2] = bcmswap16((cmd_arg & 0xffff0000) >> 16);
- if (datalen & 0x1)
- datalen++;
- if (datalen < 4)
- datalen = ROUNDUP(datalen, 4);
- } else {
- sd_err(("Host is %d bit spid, could not create SPI command.\n",
- 8 * sd->wordlen));
- return ERROR;
- }
-
- /* for Write, put the data into the output buffer */
- if (GFIELD(cmd_arg, SPI_RW_FLAG) == 1) {
- /* We send len field of hw-header always a mod16 size, both from host and dongle */
- if (DWORDMODE_ON) {
- if (GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_2) {
- ptr = (uint16 *)&data[0];
- templen = *ptr;
- /* ASSERT(*ptr == ~*(ptr + 1)); */
- templen = ROUNDUP(templen, 16);
- *ptr = templen;
- sd_trace(("actual tx len = %d\n", (uint16)(~*(ptr+1))));
- }
- }
-
- if (datalen != 0) {
- for (i = 0; i < datalen/4; i++) {
- if (sd->wordlen == 4) { /* 32bit spid */
- *(uint32 *)&spi_outbuf[i * 4 + CMDLEN] =
- bcmswap32(data[i]);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- *(uint16 *)&spi_outbuf[i * 4 + CMDLEN] =
- bcmswap16(data[i] & 0xffff);
- *(uint16 *)&spi_outbuf[i * 4 + CMDLEN + 2] =
- bcmswap16((data[i] & 0xffff0000) >> 16);
- }
- }
- }
- }
-
- /* Append resp-delay number of bytes and clock them out for F0/1/2 reads. */
- if (GFIELD(cmd_arg, SPI_RW_FLAG) == 0) {
- int func = GFIELD(cmd_arg, SPI_FUNCTION);
- switch (func) {
- case 0:
- resp_delay = sd->resp_delay_all ? F0_RESPONSE_DELAY : 0;
- break;
- case 1:
- resp_delay = F1_RESPONSE_DELAY;
- break;
- case 2:
- resp_delay = sd->resp_delay_all ? F2_RESPONSE_DELAY : 0;
- break;
- default:
- ASSERT(0);
- break;
- }
- /* Program response delay */
- bcmspi_prog_resp_delay(sd, func, resp_delay);
- }
-
- /* +4 for cmd and +4 for dstatus */
- hostlen = datalen + 8 + resp_delay;
- hostlen += dstatus_idx;
- hostlen += (4 - (hostlen & 0x3));
- spi_sendrecv(sd, spi_outbuf, spi_inbuf, hostlen);
-
- /* for Read, get the data into the input buffer */
- if (datalen != 0) {
- if (GFIELD(cmd_arg, SPI_RW_FLAG) == 0) { /* if read cmd */
- for (j = 0; j < datalen/4; j++) {
- if (sd->wordlen == 4) { /* 32bit spid */
- data[j] = bcmswap32(*(uint32 *)&spi_inbuf[j * 4 +
- CMDLEN + resp_delay]);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- data[j] = (bcmswap16(*(uint16 *)&spi_inbuf[j * 4 +
- CMDLEN + resp_delay])) |
- ((bcmswap16(*(uint16 *)&spi_inbuf[j * 4 +
- CMDLEN + resp_delay + 2])) << 16);
- }
- }
-
- if ((DWORDMODE_ON) && (GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_2)) {
- ptr = (uint16 *)&data[0];
- templen = *ptr;
- buslen = len = ~(*(ptr + 1));
- buslen = ROUNDUP(buslen, 16);
- /* populate actual len in hw-header */
- if (templen == buslen)
- *ptr = len;
- }
- }
- }
-
- /* Restore back the len field of the hw header */
- if (DWORDMODE_ON) {
- if ((GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_2) &&
- (GFIELD(cmd_arg, SPI_RW_FLAG) == 1)) {
- ptr = (uint16 *)&data[0];
- *ptr = (uint16)(~*(ptr+1));
- }
- }
-
- dstatus_idx += (datalen + CMDLEN + resp_delay);
- /* Last 4bytes are dstatus. Device is configured to return status bits. */
- if (sd->wordlen == 4) { /* 32bit spid */
- sd->card_dstatus = bcmswap32(*(uint32 *)&spi_inbuf[dstatus_idx]);
- } else if (sd->wordlen == 2) { /* 16bit spid */
- sd->card_dstatus = (bcmswap16(*(uint16 *)&spi_inbuf[dstatus_idx]) |
- (bcmswap16(*(uint16 *)&spi_inbuf[dstatus_idx + 2]) << 16));
- } else {
- sd_err(("Host is %d bit machine, could not read SPI dstatus.\n",
- 8 * sd->wordlen));
- return ERROR;
- }
- if (sd->card_dstatus == 0xffffffff) {
- sd_err(("looks like not a GSPI device or device is not powered.\n"));
- }
-
- err = bcmspi_update_stats(sd, cmd_arg);
-
- return err;
-
-}
-
-static int
-bcmspi_card_buf(sdioh_info_t *sd, int rw, int func, bool fifo,
- uint32 addr, int nbytes, uint32 *data)
-{
- int status;
- uint32 cmd_arg;
- bool write = rw == SDIOH_READ ? 0 : 1;
- uint retries = 0;
-
- bool enable;
- uint32 spilen;
-
- cmd_arg = 0;
-
- ASSERT(nbytes);
- ASSERT(nbytes <= sd->client_block_size[func]);
-
- if (write) sd->t_cnt++; else sd->r_cnt++;
-
- if (func == 2) {
- /* Frame len check limited by gSPI. */
- if ((nbytes > 2000) && write) {
- sd_trace((">2KB write: F2 wr of %d bytes\n", nbytes));
- }
- /* ASSERT(nbytes <= 2048); Fix bigger len gspi issue and uncomment. */
- /* If F2 fifo on device is not ready to receive data, don't do F2 transfer */
- if (write) {
- uint32 dstatus;
- /* check F2 ready with cached one */
- bcmspi_cmd_getdstatus(sd, &dstatus);
- if ((dstatus & STATUS_F2_RX_READY) == 0) {
- retries = WAIT_F2RXFIFORDY;
- enable = 0;
- while (retries-- && !enable) {
- OSL_DELAY(WAIT_F2RXFIFORDY_DELAY * 1000);
- bcmspi_card_regread(sd, SPI_FUNC_0, SPID_STATUS_REG, 4,
- &dstatus);
- if (dstatus & STATUS_F2_RX_READY)
- enable = TRUE;
- }
- if (!enable) {
- struct spierrstats_t *spierrstats = &sd->spierrstats;
- spierrstats->f2rxnotready++;
- sd_err(("F2 FIFO is not ready to receive data.\n"));
- return ERROR;
- }
- sd_trace(("No of retries on F2 ready %d\n",
- (WAIT_F2RXFIFORDY - retries)));
- }
- }
- }
-
- /* F2 transfers happen on 0 addr */
- addr = (func == 2) ? 0 : addr;
-
- /* In pio mode buffer is read using fixed address fifo in func 1 */
- if ((func == 1) && (fifo))
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 0);
- else
- cmd_arg = SFIELD(cmd_arg, SPI_ACCESS, 1);
-
- cmd_arg = SFIELD(cmd_arg, SPI_FUNCTION, func);
- cmd_arg = SFIELD(cmd_arg, SPI_REG_ADDR, addr);
- cmd_arg = SFIELD(cmd_arg, SPI_RW_FLAG, write);
- spilen = sd->data_xfer_count = MIN(sd->client_block_size[func], nbytes);
- if ((sd->dwordmode == TRUE) && (GFIELD(cmd_arg, SPI_FUNCTION) == SPI_FUNC_2)) {
- /* convert len to mod4 size */
- spilen = spilen + ((spilen & 0x3) ? (4 - (spilen & 0x3)): 0);
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, (spilen >> 2));
- } else
- cmd_arg = SFIELD(cmd_arg, SPI_LEN, spilen);
-
- if ((func == 2) && (fifo == 1)) {
- sd_data(("%s: %s func %d, %s, addr 0x%x, len %d bytes, r_cnt %d t_cnt %d\n",
- __FUNCTION__, write ? "Wr" : "Rd", func, "INCR",
- addr, nbytes, sd->r_cnt, sd->t_cnt));
- }
-
- sd_trace(("%s cmd_arg = 0x%x\n", __FUNCTION__, cmd_arg));
- sd_data(("%s: %s func %d, %s, addr 0x%x, len %d bytes, r_cnt %d t_cnt %d\n",
- __FUNCTION__, write ? "Wd" : "Rd", func, "INCR",
- addr, nbytes, sd->r_cnt, sd->t_cnt));
-
-
- if ((status = bcmspi_cmd_issue(sd, sd->sd_use_dma, cmd_arg,
- data, nbytes)) != SUCCESS) {
- sd_err(("%s: cmd_issue failed for %s\n", __FUNCTION__,
- (write ? "write" : "read")));
- return status;
- }
-
- /* gSPI expects that hw-header-len is equal to spi-command-len */
- if ((func == 2) && (rw == SDIOH_WRITE) && (sd->dwordmode == FALSE)) {
- ASSERT((uint16)sd->data_xfer_count == (uint16)(*data & 0xffff));
- ASSERT((uint16)sd->data_xfer_count == (uint16)(~((*data & 0xffff0000) >> 16)));
- }
-
- if ((nbytes > 2000) && !write) {
- sd_trace((">2KB read: F2 rd of %d bytes\n", nbytes));
- }
-
- return SUCCESS;
-}
-
-/* Reset and re-initialize the device */
-int
-sdioh_sdio_reset(sdioh_info_t *si)
-{
- si->card_init_done = FALSE;
- return bcmspi_client_init(si);
-}
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