bcm4329/src/bcmsdio/sys/bcmsdh.c - platform/hardware/broadcom/wlan - Git at Google

 /*
  *  BCMSDH interface glue
  *  implement bcmsdh API for SDIOH driver
  *
  * Copyright (C) 1999-2010, Broadcom Corporation
  *
  *      Unless you and Broadcom execute a separate written software license
  * agreement governing use of this software, this software is licensed to you
  * under the terms of the GNU General Public License version 2 (the "GPL"),
  * available at http://www.broadcom.com/licenses/GPLv2.php, with the
  * following added to such license:
  *
  *      As a special exception, the copyright holders of this software give you
  * permission to link this software with independent modules, and to copy and
  * distribute the resulting executable under terms of your choice, provided that
  * you also meet, for each linked independent module, the terms and conditions of
  * the license of that module.  An independent module is a module which is not
  * derived from this software.  The special exception does not apply to any
  * modifications of the software.
  *
  *      Notwithstanding the above, under no circumstances may you combine this
  * software in any way with any other Broadcom software provided under a license
  * other than the GPL, without Broadcom's express prior written consent.
  *
  * $Id: bcmsdh.c,v 1.35.2.1.4.8.6.13 2010/04/06 03:26:57 Exp $
  */
 /* ****************** BCMSDH Interface Functions *************************** */

 #include <typedefs.h>
 #include <bcmdevs.h>
 #include <bcmendian.h>
 #include <bcmutils.h>
 #include <hndsoc.h>
 #include <siutils.h>
 #include <osl.h>

 #include <bcmsdh.h>	/* BRCM API for SDIO clients (such as wl, dhd) */
 #include <bcmsdbus.h>	/* common SDIO/controller interface */
 #include <sbsdio.h>	/* BRCM sdio device core */

 #include <sdio.h>	/* sdio spec */

 #define SDIOH_API_ACCESS_RETRY_LIMIT	2
 const uint bcmsdh_msglevel = BCMSDH_ERROR_VAL;


 struct bcmsdh_info
 {
 	bool	init_success;	/* underlying driver successfully attached */
 	void	*sdioh;		/* handler for sdioh */
 	uint32  vendevid;	/* Target Vendor and Device ID on SD bus */
 	osl_t   *osh;
 	bool	regfail;	/* Save status of last reg_read/reg_write call */
 	uint32	sbwad;		/* Save backplane window address */
 };
 /* local copy of bcm sd handler */
 bcmsdh_info_t * l_bcmsdh = NULL;

 #if defined(OOB_INTR_ONLY) && defined(HW_OOB)
 extern int
 sdioh_enable_hw_oob_intr(void *sdioh, bool enable);

 void
 bcmsdh_enable_hw_oob_intr(bcmsdh_info_t *sdh, bool enable)
 {
 	sdioh_enable_hw_oob_intr(sdh->sdioh, enable);
 }
 #endif

 bcmsdh_info_t *
 bcmsdh_attach(osl_t *osh, void *cfghdl, void **regsva, uint irq)
 {
 	bcmsdh_info_t *bcmsdh;

 	if ((bcmsdh = (bcmsdh_info_t *)MALLOC(osh, sizeof(bcmsdh_info_t))) == NULL) {
 		BCMSDH_ERROR(("bcmsdh_attach: out of memory, malloced %d bytes\n", MALLOCED(osh)));
 		return NULL;
 	}
 	bzero((char *)bcmsdh, sizeof(bcmsdh_info_t));

 	/* save the handler locally */
 	l_bcmsdh = bcmsdh;

 	if (!(bcmsdh->sdioh = sdioh_attach(osh, cfghdl, irq))) {
 		bcmsdh_detach(osh, bcmsdh);
 		return NULL;
 	}

 	bcmsdh->osh = osh;
 	bcmsdh->init_success = TRUE;

 	*regsva = (uint32 *)SI_ENUM_BASE;

 	/* Report the BAR, to fix if needed */
 	bcmsdh->sbwad = SI_ENUM_BASE;
 	return bcmsdh;
 }

 int
 bcmsdh_detach(osl_t *osh, void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	if (bcmsdh != NULL) {
 		if (bcmsdh->sdioh) {
 			sdioh_detach(osh, bcmsdh->sdioh);
 			bcmsdh->sdioh = NULL;
 		}
 		MFREE(osh, bcmsdh, sizeof(bcmsdh_info_t));
 	}

 	l_bcmsdh = NULL;
 	return 0;
 }

 int
 bcmsdh_iovar_op(void *sdh, const char *name,
                 void *params, int plen, void *arg, int len, bool set)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	return sdioh_iovar_op(bcmsdh->sdioh, name, params, plen, arg, len, set);
 }

 bool
 bcmsdh_intr_query(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	bool on;

 	ASSERT(bcmsdh);
 	status = sdioh_interrupt_query(bcmsdh->sdioh, &on);
 	if (SDIOH_API_SUCCESS(status))
 		return FALSE;
 	else
 		return on;
 }

 int
 bcmsdh_intr_enable(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	ASSERT(bcmsdh);

 	status = sdioh_interrupt_set(bcmsdh->sdioh, TRUE);
 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 int
 bcmsdh_intr_disable(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	ASSERT(bcmsdh);

 	status = sdioh_interrupt_set(bcmsdh->sdioh, FALSE);
 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 int
 bcmsdh_intr_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	ASSERT(bcmsdh);

 	status = sdioh_interrupt_register(bcmsdh->sdioh, fn, argh);
 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 int
 bcmsdh_intr_dereg(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	ASSERT(bcmsdh);

 	status = sdioh_interrupt_deregister(bcmsdh->sdioh);
 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 #if defined(DHD_DEBUG)
 bool
 bcmsdh_intr_pending(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	ASSERT(sdh);
 	return sdioh_interrupt_pending(bcmsdh->sdioh);
 }
 #endif


 int
 bcmsdh_devremove_reg(void *sdh, bcmsdh_cb_fn_t fn, void *argh)
 {
 	ASSERT(sdh);

 	/* don't support yet */
 	return BCME_UNSUPPORTED;
 }

 uint8
 bcmsdh_cfg_read(void *sdh, uint fnc_num, uint32 addr, int *err)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	int32 retry = 0;
 #endif
 	uint8 data = 0;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	do {
 		if (retry)	/* wait for 1 ms till bus get settled down */
 			OSL_DELAY(1000);
 #endif
 	status = sdioh_cfg_read(bcmsdh->sdioh, fnc_num, addr, (uint8 *)&data);
 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	} while (!SDIOH_API_SUCCESS(status) && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT));
 #endif
 	if (err)
 		*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint8data = 0x%x\n", __FUNCTION__,
 	            fnc_num, addr, data));

 	return data;
 }

 void
 bcmsdh_cfg_write(void *sdh, uint fnc_num, uint32 addr, uint8 data, int *err)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	int32 retry = 0;
 #endif

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	do {
 		if (retry)	/* wait for 1 ms till bus get settled down */
 			OSL_DELAY(1000);
 #endif
 	status = sdioh_cfg_write(bcmsdh->sdioh, fnc_num, addr, (uint8 *)&data);
 #ifdef SDIOH_API_ACCESS_RETRY_LIMIT
 	} while (!SDIOH_API_SUCCESS(status) && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT));
 #endif
 	if (err)
 		*err = SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR;

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint8data = 0x%x\n", __FUNCTION__,
 	            fnc_num, addr, data));
 }

 uint32
 bcmsdh_cfg_read_word(void *sdh, uint fnc_num, uint32 addr, int *err)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	uint32 data = 0;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_READ, fnc_num,
 	                            addr, &data, 4);

 	if (err)
 		*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint32data = 0x%x\n", __FUNCTION__,
 	            fnc_num, addr, data));

 	return data;
 }

 void
 bcmsdh_cfg_write_word(void *sdh, uint fnc_num, uint32 addr, uint32 data, int *err)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_WRITE, fnc_num,
 	                            addr, &data, 4);

 	if (err)
 		*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint32data = 0x%x\n", __FUNCTION__, fnc_num,
 	             addr, data));
 }


 int
 bcmsdh_cis_read(void *sdh, uint func, uint8 *cis, uint length)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;

 	uint8 *tmp_buf, *tmp_ptr;
 	uint8 *ptr;
 	bool ascii = func & ~0xf;
 	func &= 0x7;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);
 	ASSERT(cis);
 	ASSERT(length <= SBSDIO_CIS_SIZE_LIMIT);

 	status = sdioh_cis_read(bcmsdh->sdioh, func, cis, length);

 	if (ascii) {
 		/* Move binary bits to tmp and format them into the provided buffer. */
 		if ((tmp_buf = (uint8 *)MALLOC(bcmsdh->osh, length)) == NULL) {
 			BCMSDH_ERROR(("%s: out of memory\n", __FUNCTION__));
 			return BCME_NOMEM;
 		}
 		bcopy(cis, tmp_buf, length);
 		for (tmp_ptr = tmp_buf, ptr = cis; ptr < (cis + length - 4); tmp_ptr++) {
 			ptr += sprintf((char*)ptr, "%.2x ", *tmp_ptr & 0xff);
 			if ((((tmp_ptr - tmp_buf) + 1) & 0xf) == 0)
 				ptr += sprintf((char *)ptr, "\n");
 		}
 		MFREE(bcmsdh->osh, tmp_buf, length);
 	}

 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }


 static int
 bcmsdhsdio_set_sbaddr_window(void *sdh, uint32 address)
 {
 	int err = 0;
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW,
 	                 (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err);
 	if (!err)
 		bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID,
 		                 (address >> 16) & SBSDIO_SBADDRMID_MASK, &err);
 	if (!err)
 		bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH,
 		                 (address >> 24) & SBSDIO_SBADDRHIGH_MASK, &err);


 	return err;
 }

 uint32
 bcmsdh_reg_read(void *sdh, uint32 addr, uint size)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	uint32 word = 0;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;

 	BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, ", __FUNCTION__, addr));

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 	if (bar0 != bcmsdh->sbwad) {
 		if (bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0))
 			return 0xFFFFFFFF;

 		bcmsdh->sbwad = bar0;
 	}

 	addr &= SBSDIO_SB_OFT_ADDR_MASK;
 	if (size == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;

 	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL,
 		SDIOH_READ, SDIO_FUNC_1, addr, &word, size);

 	bcmsdh->regfail = !(SDIOH_API_SUCCESS(status));

 	BCMSDH_INFO(("uint32data = 0x%x\n", word));

 	/* if ok, return appropriately masked word */
 	if (SDIOH_API_SUCCESS(status)) {
 		switch (size) {
 			case sizeof(uint8):
 				return (word & 0xff);
 			case sizeof(uint16):
 				return (word & 0xffff);
 			case sizeof(uint32):
 				return word;
 			default:
 				bcmsdh->regfail = TRUE;

 		}
 	}

 	/* otherwise, bad sdio access or invalid size */
 	BCMSDH_ERROR(("%s: error reading addr 0x%04x size %d\n", __FUNCTION__, addr, size));
 	return 0xFFFFFFFF;
 }

 uint32
 bcmsdh_reg_write(void *sdh, uint32 addr, uint size, uint32 data)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;

 	BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, uint%ddata = 0x%x\n",
 	             __FUNCTION__, addr, size*8, data));

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	ASSERT(bcmsdh->init_success);

 	if (bar0 != bcmsdh->sbwad) {
 		if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
 			return err;

 		bcmsdh->sbwad = bar0;
 	}

 	addr &= SBSDIO_SB_OFT_ADDR_MASK;
 	if (size == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
 	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_WRITE, SDIO_FUNC_1,
 	                            addr, &data, size);
 	bcmsdh->regfail = !(SDIOH_API_SUCCESS(status));

 	if (SDIOH_API_SUCCESS(status))
 		return 0;

 	BCMSDH_ERROR(("%s: error writing 0x%08x to addr 0x%04x size %d\n",
 	              __FUNCTION__, data, addr, size));
 	return 0xFFFFFFFF;
 }

 bool
 bcmsdh_regfail(void *sdh)
 {
 	return ((bcmsdh_info_t *)sdh)->regfail;
 }

 int
 bcmsdh_recv_buf(void *sdh, uint32 addr, uint fn, uint flags,
                 uint8 *buf, uint nbytes, void *pkt,
                 bcmsdh_cmplt_fn_t complete, void *handle)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	uint incr_fix;
 	uint width;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;

 	ASSERT(bcmsdh);
 	ASSERT(bcmsdh->init_success);

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n",
 	             __FUNCTION__, fn, addr, nbytes));

 	/* Async not implemented yet */
 	ASSERT(!(flags & SDIO_REQ_ASYNC));
 	if (flags & SDIO_REQ_ASYNC)
 		return BCME_UNSUPPORTED;

 	if (bar0 != bcmsdh->sbwad) {
 		if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
 			return err;

 		bcmsdh->sbwad = bar0;
 	}

 	addr &= SBSDIO_SB_OFT_ADDR_MASK;

 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	if (width == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;

 	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix,
 	                              SDIOH_READ, fn, addr, width, nbytes, buf, pkt);

 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);
 }

 int
 bcmsdh_send_buf(void *sdh, uint32 addr, uint fn, uint flags,
                 uint8 *buf, uint nbytes, void *pkt,
                 bcmsdh_cmplt_fn_t complete, void *handle)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;
 	uint incr_fix;
 	uint width;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;

 	ASSERT(bcmsdh);
 	ASSERT(bcmsdh->init_success);

 	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n",
 	            __FUNCTION__, fn, addr, nbytes));

 	/* Async not implemented yet */
 	ASSERT(!(flags & SDIO_REQ_ASYNC));
 	if (flags & SDIO_REQ_ASYNC)
 		return BCME_UNSUPPORTED;

 	if (bar0 != bcmsdh->sbwad) {
 		if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
 			return err;

 		bcmsdh->sbwad = bar0;
 	}

 	addr &= SBSDIO_SB_OFT_ADDR_MASK;

 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	if (width == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;

 	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix,
 	                              SDIOH_WRITE, fn, addr, width, nbytes, buf, pkt);

 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 int
 bcmsdh_rwdata(void *sdh, uint rw, uint32 addr, uint8 *buf, uint nbytes)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	SDIOH_API_RC status;

 	ASSERT(bcmsdh);
 	ASSERT(bcmsdh->init_success);
 	ASSERT((addr & SBSDIO_SBWINDOW_MASK) == 0);

 	addr &= SBSDIO_SB_OFT_ADDR_MASK;
 	addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;

 	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, SDIOH_DATA_INC,
 	                              (rw ? SDIOH_WRITE : SDIOH_READ), SDIO_FUNC_1,
 	                              addr, 4, nbytes, buf, NULL);

 	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
 }

 int
 bcmsdh_abort(void *sdh, uint fn)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	return sdioh_abort(bcmsdh->sdioh, fn);
 }

 int
 bcmsdh_start(void *sdh, int stage)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	return sdioh_start(bcmsdh->sdioh, stage);
 }

 int
 bcmsdh_stop(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	return sdioh_stop(bcmsdh->sdioh);
 }


 int
 bcmsdh_query_device(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;
 	bcmsdh->vendevid = (VENDOR_BROADCOM << 16) | 0;
 	return (bcmsdh->vendevid);
 }

 uint
 bcmsdh_query_iofnum(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	return (sdioh_query_iofnum(bcmsdh->sdioh));
 }

 int
 bcmsdh_reset(bcmsdh_info_t *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	return sdioh_sdio_reset(bcmsdh->sdioh);
 }

 void *bcmsdh_get_sdioh(bcmsdh_info_t *sdh)
 {
 	ASSERT(sdh);
 	return sdh->sdioh;
 }

 /* Function to pass device-status bits to DHD. */
 uint32
 bcmsdh_get_dstatus(void *sdh)
 {
 	return 0;
 }
 uint32
 bcmsdh_cur_sbwad(void *sdh)
 {
 	bcmsdh_info_t *bcmsdh = (bcmsdh_info_t *)sdh;

 	if (!bcmsdh)
 		bcmsdh = l_bcmsdh;

 	return (bcmsdh->sbwad);
 }

 void
 bcmsdh_chipinfo(void *sdh, uint32 chip, uint32 chiprev)
 {
 	return;
 }
	/*
	* BCMSDH interface glue
	* implement bcmsdh API for SDIOH driver
	*
	* Copyright (C) 1999-2010, Broadcom Corporation
	*
	* Unless you and Broadcom execute a separate written software license
	* agreement governing use of this software, this software is licensed to you
	* under the terms of the GNU General Public License version 2 (the "GPL"),
	* available at http://www.broadcom.com/licenses/GPLv2.php, with the
	* following added to such license:
	*
	* As a special exception, the copyright holders of this software give you
	* permission to link this software with independent modules, and to copy and
	* distribute the resulting executable under terms of your choice, provided that
	* you also meet, for each linked independent module, the terms and conditions of
	* the license of that module. An independent module is a module which is not
	* derived from this software. The special exception does not apply to any
	* modifications of the software.
	*
	* Notwithstanding the above, under no circumstances may you combine this
	* software in any way with any other Broadcom software provided under a license
	* other than the GPL, without Broadcom's express prior written consent.
	*
	* $Id: bcmsdh.c,v 1.35.2.1.4.8.6.13 2010/04/06 03:26:57 Exp $
	*/
	/* **************** BCMSDH Interface Functions ************************* */

	#include <typedefs.h>
	#include <bcmdevs.h>
	#include <bcmendian.h>
	#include <bcmutils.h>
	#include <hndsoc.h>
	#include <siutils.h>
	#include <osl.h>

	#include <bcmsdh.h> /* BRCM API for SDIO clients (such as wl, dhd) */
	#include <bcmsdbus.h> /* common SDIO/controller interface */
	#include <sbsdio.h> /* BRCM sdio device core */

	#include <sdio.h> /* sdio spec */

	#define SDIOH_API_ACCESS_RETRY_LIMIT 2
	const uint bcmsdh_msglevel = BCMSDH_ERROR_VAL;


	struct bcmsdh_info
	{
	bool init_success; /* underlying driver successfully attached */
	void sdioh; / handler for sdioh */
	uint32 vendevid; /* Target Vendor and Device ID on SD bus */
	osl_t *osh;
	bool regfail; /* Save status of last reg_read/reg_write call */
	uint32 sbwad; /* Save backplane window address */
	};
	/* local copy of bcm sd handler */
	bcmsdh_info_t * l_bcmsdh = NULL;

	#if defined(OOB_INTR_ONLY) && defined(HW_OOB)
	extern int
	sdioh_enable_hw_oob_intr(void *sdioh, bool enable);

	void
	bcmsdh_enable_hw_oob_intr(bcmsdh_info_t *sdh, bool enable)
	{
	sdioh_enable_hw_oob_intr(sdh->sdioh, enable);
	}
	#endif

	bcmsdh_info_t *
	bcmsdh_attach(osl_t osh, void cfghdl, void **regsva, uint irq)
	{
	bcmsdh_info_t *bcmsdh;

	if ((bcmsdh = (bcmsdh_info_t *)MALLOC(osh, sizeof(bcmsdh_info_t))) == NULL) {
	BCMSDH_ERROR(("bcmsdh_attach: out of memory, malloced %d bytes\n", MALLOCED(osh)));
	return NULL;
	}
	bzero((char *)bcmsdh, sizeof(bcmsdh_info_t));

	/* save the handler locally */
	l_bcmsdh = bcmsdh;

	if (!(bcmsdh->sdioh = sdioh_attach(osh, cfghdl, irq))) {
	bcmsdh_detach(osh, bcmsdh);
	return NULL;
	}

	bcmsdh->osh = osh;
	bcmsdh->init_success = TRUE;

	regsva = (uint32 )SI_ENUM_BASE;

	/* Report the BAR, to fix if needed */
	bcmsdh->sbwad = SI_ENUM_BASE;
	return bcmsdh;
	}

	int
	bcmsdh_detach(osl_t osh, void sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	if (bcmsdh != NULL) {
	if (bcmsdh->sdioh) {
	sdioh_detach(osh, bcmsdh->sdioh);
	bcmsdh->sdioh = NULL;
	}
	MFREE(osh, bcmsdh, sizeof(bcmsdh_info_t));
	}

	l_bcmsdh = NULL;
	return 0;
	}

	int
	bcmsdh_iovar_op(void sdh, const char name,
	void params, int plen, void arg, int len, bool set)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	return sdioh_iovar_op(bcmsdh->sdioh, name, params, plen, arg, len, set);
	}

	bool
	bcmsdh_intr_query(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	bool on;

	ASSERT(bcmsdh);
	status = sdioh_interrupt_query(bcmsdh->sdioh, &on);
	if (SDIOH_API_SUCCESS(status))
	return FALSE;
	else
	return on;
	}

	int
	bcmsdh_intr_enable(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	ASSERT(bcmsdh);

	status = sdioh_interrupt_set(bcmsdh->sdioh, TRUE);
	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	int
	bcmsdh_intr_disable(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	ASSERT(bcmsdh);

	status = sdioh_interrupt_set(bcmsdh->sdioh, FALSE);
	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	int
	bcmsdh_intr_reg(void sdh, bcmsdh_cb_fn_t fn, void argh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	ASSERT(bcmsdh);

	status = sdioh_interrupt_register(bcmsdh->sdioh, fn, argh);
	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	int
	bcmsdh_intr_dereg(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	ASSERT(bcmsdh);

	status = sdioh_interrupt_deregister(bcmsdh->sdioh);
	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	#if defined(DHD_DEBUG)
	bool
	bcmsdh_intr_pending(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	ASSERT(sdh);
	return sdioh_interrupt_pending(bcmsdh->sdioh);
	}
	#endif


	int
	bcmsdh_devremove_reg(void sdh, bcmsdh_cb_fn_t fn, void argh)
	{
	ASSERT(sdh);

	/* don't support yet */
	return BCME_UNSUPPORTED;
	}

	uint8
	bcmsdh_cfg_read(void sdh, uint fnc_num, uint32 addr, int err)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	int32 retry = 0;
	#endif
	uint8 data = 0;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	do {
	if (retry) /* wait for 1 ms till bus get settled down */
	OSL_DELAY(1000);
	#endif
	status = sdioh_cfg_read(bcmsdh->sdioh, fnc_num, addr, (uint8 *)&data);
	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	} while (!SDIOH_API_SUCCESS(status) && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT));
	#endif
	if (err)
	*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint8data = 0x%x\n", __FUNCTION__,
	fnc_num, addr, data));

	return data;
	}

	void
	bcmsdh_cfg_write(void sdh, uint fnc_num, uint32 addr, uint8 data, int err)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	int32 retry = 0;
	#endif

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	do {
	if (retry) /* wait for 1 ms till bus get settled down */
	OSL_DELAY(1000);
	#endif
	status = sdioh_cfg_write(bcmsdh->sdioh, fnc_num, addr, (uint8 *)&data);
	#ifdef SDIOH_API_ACCESS_RETRY_LIMIT
	} while (!SDIOH_API_SUCCESS(status) && (retry++ < SDIOH_API_ACCESS_RETRY_LIMIT));
	#endif
	if (err)
	*err = SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR;

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint8data = 0x%x\n", __FUNCTION__,
	fnc_num, addr, data));
	}

	uint32
	bcmsdh_cfg_read_word(void sdh, uint fnc_num, uint32 addr, int err)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	uint32 data = 0;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_READ, fnc_num,
	addr, &data, 4);

	if (err)
	*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint32data = 0x%x\n", __FUNCTION__,
	fnc_num, addr, data));

	return data;
	}

	void
	bcmsdh_cfg_write_word(void sdh, uint fnc_num, uint32 addr, uint32 data, int err)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_WRITE, fnc_num,
	addr, &data, 4);

	if (err)
	*err = (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, uint32data = 0x%x\n", __FUNCTION__, fnc_num,
	addr, data));
	}


	int
	bcmsdh_cis_read(void sdh, uint func, uint8 cis, uint length)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;

	uint8 tmp_buf, tmp_ptr;
	uint8 *ptr;
	bool ascii = func & ~0xf;
	func &= 0x7;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);
	ASSERT(cis);
	ASSERT(length <= SBSDIO_CIS_SIZE_LIMIT);

	status = sdioh_cis_read(bcmsdh->sdioh, func, cis, length);

	if (ascii) {
	/* Move binary bits to tmp and format them into the provided buffer. */
	if ((tmp_buf = (uint8 *)MALLOC(bcmsdh->osh, length)) == NULL) {
	BCMSDH_ERROR(("%s: out of memory\n", __FUNCTION__));
	return BCME_NOMEM;
	}
	bcopy(cis, tmp_buf, length);
	for (tmp_ptr = tmp_buf, ptr = cis; ptr < (cis + length - 4); tmp_ptr++) {
	ptr += sprintf((char)ptr, "%.2x ", tmp_ptr & 0xff);
	if ((((tmp_ptr - tmp_buf) + 1) & 0xf) == 0)
	ptr += sprintf((char *)ptr, "\n");
	}
	MFREE(bcmsdh->osh, tmp_buf, length);
	}

	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}


	static int
	bcmsdhsdio_set_sbaddr_window(void *sdh, uint32 address)
	{
	int err = 0;
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW,
	(address >> 8) & SBSDIO_SBADDRLOW_MASK, &err);
	if (!err)
	bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID,
	(address >> 16) & SBSDIO_SBADDRMID_MASK, &err);
	if (!err)
	bcmsdh_cfg_write(bcmsdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH,
	(address >> 24) & SBSDIO_SBADDRHIGH_MASK, &err);


	return err;
	}

	uint32
	bcmsdh_reg_read(void *sdh, uint32 addr, uint size)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	uint32 word = 0;
	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;

	BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, ", __FUNCTION__, addr));

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	if (bar0 != bcmsdh->sbwad) {
	if (bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0))
	return 0xFFFFFFFF;

	bcmsdh->sbwad = bar0;
	}

	addr &= SBSDIO_SB_OFT_ADDR_MASK;
	if (size == 4)
	addr \|= SBSDIO_SB_ACCESS_2_4B_FLAG;

	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL,
	SDIOH_READ, SDIO_FUNC_1, addr, &word, size);

	bcmsdh->regfail = !(SDIOH_API_SUCCESS(status));

	BCMSDH_INFO(("uint32data = 0x%x\n", word));

	/* if ok, return appropriately masked word */
	if (SDIOH_API_SUCCESS(status)) {
	switch (size) {
	case sizeof(uint8):
	return (word & 0xff);
	case sizeof(uint16):
	return (word & 0xffff);
	case sizeof(uint32):
	return word;
	default:
	bcmsdh->regfail = TRUE;

	}
	}

	/* otherwise, bad sdio access or invalid size */
	BCMSDH_ERROR(("%s: error reading addr 0x%04x size %d\n", __FUNCTION__, addr, size));
	return 0xFFFFFFFF;
	}

	uint32
	bcmsdh_reg_write(void *sdh, uint32 addr, uint size, uint32 data)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
	int err = 0;

	BCMSDH_INFO(("%s:fun = 1, addr = 0x%x, uint%ddata = 0x%x\n",
	__FUNCTION__, addr, size*8, data));

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	ASSERT(bcmsdh->init_success);

	if (bar0 != bcmsdh->sbwad) {
	if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
	return err;

	bcmsdh->sbwad = bar0;
	}

	addr &= SBSDIO_SB_OFT_ADDR_MASK;
	if (size == 4)
	addr \|= SBSDIO_SB_ACCESS_2_4B_FLAG;
	status = sdioh_request_word(bcmsdh->sdioh, SDIOH_CMD_TYPE_NORMAL, SDIOH_WRITE, SDIO_FUNC_1,
	addr, &data, size);
	bcmsdh->regfail = !(SDIOH_API_SUCCESS(status));

	if (SDIOH_API_SUCCESS(status))
	return 0;

	BCMSDH_ERROR(("%s: error writing 0x%08x to addr 0x%04x size %d\n",
	__FUNCTION__, data, addr, size));
	return 0xFFFFFFFF;
	}

	bool
	bcmsdh_regfail(void *sdh)
	{
	return ((bcmsdh_info_t *)sdh)->regfail;
	}

	int
	bcmsdh_recv_buf(void *sdh, uint32 addr, uint fn, uint flags,
	uint8 buf, uint nbytes, void pkt,
	bcmsdh_cmplt_fn_t complete, void *handle)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	uint incr_fix;
	uint width;
	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
	int err = 0;

	ASSERT(bcmsdh);
	ASSERT(bcmsdh->init_success);

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n",
	__FUNCTION__, fn, addr, nbytes));

	/* Async not implemented yet */
	ASSERT(!(flags & SDIO_REQ_ASYNC));
	if (flags & SDIO_REQ_ASYNC)
	return BCME_UNSUPPORTED;

	if (bar0 != bcmsdh->sbwad) {
	if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
	return err;

	bcmsdh->sbwad = bar0;
	}

	addr &= SBSDIO_SB_OFT_ADDR_MASK;

	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
	if (width == 4)
	addr \|= SBSDIO_SB_ACCESS_2_4B_FLAG;

	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix,
	SDIOH_READ, fn, addr, width, nbytes, buf, pkt);

	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_SDIO_ERROR);
	}

	int
	bcmsdh_send_buf(void *sdh, uint32 addr, uint fn, uint flags,
	uint8 buf, uint nbytes, void pkt,
	bcmsdh_cmplt_fn_t complete, void *handle)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;
	uint incr_fix;
	uint width;
	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
	int err = 0;

	ASSERT(bcmsdh);
	ASSERT(bcmsdh->init_success);

	BCMSDH_INFO(("%s:fun = %d, addr = 0x%x, size = %d\n",
	__FUNCTION__, fn, addr, nbytes));

	/* Async not implemented yet */
	ASSERT(!(flags & SDIO_REQ_ASYNC));
	if (flags & SDIO_REQ_ASYNC)
	return BCME_UNSUPPORTED;

	if (bar0 != bcmsdh->sbwad) {
	if ((err = bcmsdhsdio_set_sbaddr_window(bcmsdh, bar0)))
	return err;

	bcmsdh->sbwad = bar0;
	}

	addr &= SBSDIO_SB_OFT_ADDR_MASK;

	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
	if (width == 4)
	addr \|= SBSDIO_SB_ACCESS_2_4B_FLAG;

	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, incr_fix,
	SDIOH_WRITE, fn, addr, width, nbytes, buf, pkt);

	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	int
	bcmsdh_rwdata(void sdh, uint rw, uint32 addr, uint8 buf, uint nbytes)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	SDIOH_API_RC status;

	ASSERT(bcmsdh);
	ASSERT(bcmsdh->init_success);
	ASSERT((addr & SBSDIO_SBWINDOW_MASK) == 0);

	addr &= SBSDIO_SB_OFT_ADDR_MASK;
	addr \|= SBSDIO_SB_ACCESS_2_4B_FLAG;

	status = sdioh_request_buffer(bcmsdh->sdioh, SDIOH_DATA_PIO, SDIOH_DATA_INC,
	(rw ? SDIOH_WRITE : SDIOH_READ), SDIO_FUNC_1,
	addr, 4, nbytes, buf, NULL);

	return (SDIOH_API_SUCCESS(status) ? 0 : BCME_ERROR);
	}

	int
	bcmsdh_abort(void *sdh, uint fn)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	return sdioh_abort(bcmsdh->sdioh, fn);
	}

	int
	bcmsdh_start(void *sdh, int stage)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	return sdioh_start(bcmsdh->sdioh, stage);
	}

	int
	bcmsdh_stop(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	return sdioh_stop(bcmsdh->sdioh);
	}


	int
	bcmsdh_query_device(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;
	bcmsdh->vendevid = (VENDOR_BROADCOM << 16) \| 0;
	return (bcmsdh->vendevid);
	}

	uint
	bcmsdh_query_iofnum(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	return (sdioh_query_iofnum(bcmsdh->sdioh));
	}

	int
	bcmsdh_reset(bcmsdh_info_t *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	return sdioh_sdio_reset(bcmsdh->sdioh);
	}

	void bcmsdh_get_sdioh(bcmsdh_info_t sdh)
	{
	ASSERT(sdh);
	return sdh->sdioh;
	}

	/* Function to pass device-status bits to DHD. */
	uint32
	bcmsdh_get_dstatus(void *sdh)
	{
	return 0;
	}
	uint32
	bcmsdh_cur_sbwad(void *sdh)
	{
	bcmsdh_info_t bcmsdh = (bcmsdh_info_t )sdh;

	if (!bcmsdh)
	bcmsdh = l_bcmsdh;

	return (bcmsdh->sbwad);
	}

	void
	bcmsdh_chipinfo(void *sdh, uint32 chip, uint32 chiprev)
	{
	return;
	}