--- /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+ * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;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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