[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / bcmsdh_sdmmc.c

/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/core.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/card.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/sched.h>	/* request_irq() */
#include <linux/module.h>
#include <net/cfg80211.h>

#include <defs.h>
#include <brcm_hw_ids.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include "sdio_host.h"
#include "dhd_dbg.h"
#include "dhd_bus.h"

#define SDIO_VENDOR_ID_BROADCOM		0x02d0

#define DMA_ALIGN_MASK	0x03

#define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
#define SDIO_DEVICE_ID_BROADCOM_4330	0x4330

#define SDIO_FUNC1_BLOCKSIZE		64
#define SDIO_FUNC2_BLOCKSIZE		512

/* devices we support, null terminated */
static const struct sdio_device_id brcmf_sdmmc_ids[] = {
	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
	{ /* end: all zeroes */ },
};
MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);

static bool
brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
{
	bool is_err = false;
#ifdef CONFIG_PM_SLEEP
	is_err = atomic_read(&sdiodev->suspend);
#endif
	return is_err;
}

static void
brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
{
#ifdef CONFIG_PM_SLEEP
	int retry = 0;
	while (atomic_read(&sdiodev->suspend) && retry++ != 30)
		wait_event_timeout(*wq, false, HZ/100);
#endif
}

static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
					    uint regaddr, u8 *byte)
{
	struct sdio_func *sdfunc = sdiodev->func[0];
	int err_ret;

	/*
	 * Can only directly write to some F0 registers.
	 * Handle F2 enable/disable and Abort command
	 * as a special case.
	 */
	if (regaddr == SDIO_CCCR_IOEx) {
		sdfunc = sdiodev->func[2];
		if (sdfunc) {
			sdio_claim_host(sdfunc);
			if (*byte & SDIO_FUNC_ENABLE_2) {
				/* Enable Function 2 */
				err_ret = sdio_enable_func(sdfunc);
				if (err_ret)
					brcmf_dbg(ERROR,
						  "enable F2 failed:%d\n",
						  err_ret);
			} else {
				/* Disable Function 2 */
				err_ret = sdio_disable_func(sdfunc);
				if (err_ret)
					brcmf_dbg(ERROR,
						  "Disable F2 failed:%d\n",
						  err_ret);
			}
			sdio_release_host(sdfunc);
		}
	} else if (regaddr == SDIO_CCCR_ABORT) {
		sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
				 GFP_KERNEL);
		if (!sdfunc)
			return -ENOMEM;
		sdfunc->num = 0;
		sdio_claim_host(sdfunc);
		sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
		sdio_release_host(sdfunc);
		kfree(sdfunc);
	} else if (regaddr < 0xF0) {
		brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
		err_ret = -EPERM;
	} else {
		sdio_claim_host(sdfunc);
		sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
		sdio_release_host(sdfunc);
	}

	return err_ret;
}

int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
			     uint regaddr, u8 *byte)
{
	int err_ret;

	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);

	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
	if (brcmf_pm_resume_error(sdiodev))
		return -EIO;

	if (rw && func == 0) {
		/* handle F0 separately */
		err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
	} else {
		sdio_claim_host(sdiodev->func[func]);
		if (rw) /* CMD52 Write */
			sdio_writeb(sdiodev->func[func], *byte, regaddr,
				    &err_ret);
		else if (func == 0) {
			*byte = sdio_f0_readb(sdiodev->func[func], regaddr,
					      &err_ret);
		} else {
			*byte = sdio_readb(sdiodev->func[func], regaddr,
					   &err_ret);
		}
		sdio_release_host(sdiodev->func[func]);
	}

	if (err_ret)
		brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
			  rw ? "write" : "read", func, regaddr, *byte, err_ret);

	return err_ret;
}

int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
			     uint rw, uint func, uint addr, u32 *word,
			     uint nbytes)
{
	int err_ret = -EIO;

	if (func == 0) {
		brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
		return -EINVAL;
	}

	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
		  rw, func, addr, nbytes);

	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
	if (brcmf_pm_resume_error(sdiodev))
		return -EIO;
	/* Claim host controller */
	sdio_claim_host(sdiodev->func[func]);

	if (rw) {		/* CMD52 Write */
		if (nbytes == 4)
			sdio_writel(sdiodev->func[func], *word, addr,
				    &err_ret);
		else if (nbytes == 2)
			sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
				    addr, &err_ret);
		else
			brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
	} else {		/* CMD52 Read */
		if (nbytes == 4)
			*word = sdio_readl(sdiodev->func[func], addr, &err_ret);
		else if (nbytes == 2)
			*word = sdio_readw(sdiodev->func[func], addr,
					   &err_ret) & 0xFFFF;
		else
			brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
	}

	/* Release host controller */
	sdio_release_host(sdiodev->func[func]);

	if (err_ret)
		brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
			  rw ? "write" : "read", err_ret);

	return err_ret;
}

/* precondition: host controller is claimed */
static int
brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
			 uint func, uint addr, struct sk_buff *pkt, uint pktlen)
{
	int err_ret = 0;

	if ((write) && (!fifo)) {
		err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
					   ((u8 *) (pkt->data)), pktlen);
	} else if (write) {
		err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
					   ((u8 *) (pkt->data)), pktlen);
	} else if (fifo) {
		err_ret = sdio_readsb(sdiodev->func[func],
				      ((u8 *) (pkt->data)), addr, pktlen);
	} else {
		err_ret = sdio_memcpy_fromio(sdiodev->func[func],
					     ((u8 *) (pkt->data)),
					     addr, pktlen);
	}

	return err_ret;
}

/*
 * This function takes a queue of packets. The packets on the queue
 * are assumed to be properly aligned by the caller.
 */
int
brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
			  uint write, uint func, uint addr,
			  struct sk_buff_head *pktq)
{
	bool fifo = (fix_inc == SDIOH_DATA_FIX);
	u32 SGCount = 0;
	int err_ret = 0;

	struct sk_buff *pkt;

	brcmf_dbg(TRACE, "Enter\n");

	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
	if (brcmf_pm_resume_error(sdiodev))
		return -EIO;

	/* Claim host controller */
	sdio_claim_host(sdiodev->func[func]);

	skb_queue_walk(pktq, pkt) {
		uint pkt_len = pkt->len;
		pkt_len += 3;
		pkt_len &= 0xFFFFFFFC;

		err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
						   addr, pkt, pkt_len);
		if (err_ret) {
			brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
				  write ? "TX" : "RX", pkt, SGCount, addr,
				  pkt_len, err_ret);
		} else {
			brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
				  write ? "TX" : "RX", pkt, SGCount, addr,
				  pkt_len);
		}
		if (!fifo)
			addr += pkt_len;

		SGCount++;
	}

	/* Release host controller */
	sdio_release_host(sdiodev->func[func]);

	brcmf_dbg(TRACE, "Exit\n");
	return err_ret;
}

/*
 * This function takes a single DMA-able packet.
 */
int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
			       uint fix_inc, uint write, uint func, uint addr,
			       struct sk_buff *pkt)
{
	int status;
	uint pkt_len;
	bool fifo = (fix_inc == SDIOH_DATA_FIX);

	brcmf_dbg(TRACE, "Enter\n");

	if (pkt == NULL)
		return -EINVAL;
	pkt_len = pkt->len;

	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
	if (brcmf_pm_resume_error(sdiodev))
		return -EIO;

	/* Claim host controller */
	sdio_claim_host(sdiodev->func[func]);

	pkt_len += 3;
	pkt_len &= (uint)~3;

	status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
					   addr, pkt, pkt_len);
	if (status) {
		brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
			  write ? "TX" : "RX", pkt, addr, pkt_len, status);
	} else {
		brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
			  write ? "TX" : "RX", pkt, addr, pkt_len);
	}

	/* Release host controller */
	sdio_release_host(sdiodev->func[func]);

	return status;
}

/* Read client card reg */
static int
brcmf_sdioh_card_regread(struct brcmf_sdio_dev *sdiodev, int func, u32 regaddr,
			 int regsize, u32 *data)
{

	if ((func == 0) || (regsize == 1)) {
		u8 temp = 0;

		brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, func, regaddr,
					 &temp);
		*data = temp;
		*data &= 0xff;
		brcmf_dbg(DATA, "byte read data=0x%02x\n", *data);
	} else {
		brcmf_sdioh_request_word(sdiodev, SDIOH_READ, func, regaddr,
					 data, regsize);
		if (regsize == 2)
			*data &= 0xffff;

		brcmf_dbg(DATA, "word read data=0x%08x\n", *data);
	}

	return SUCCESS;
}

static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
{
	/* read 24 bits and return valid 17 bit addr */
	int i;
	u32 scratch, regdata;
	__le32 scratch_le;
	u8 *ptr = (u8 *)&scratch_le;

	for (i = 0; i < 3; i++) {
		if ((brcmf_sdioh_card_regread(sdiodev, 0, regaddr, 1,
				&regdata)) != SUCCESS)
			brcmf_dbg(ERROR, "Can't read!\n");

		*ptr++ = (u8) regdata;
		regaddr++;
	}

	/* Only the lower 17-bits are valid */
	scratch = le32_to_cpu(scratch_le);
	scratch &= 0x0001FFFF;
	return scratch;
}

static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
{
	int err_ret;
	u32 fbraddr;
	u8 func;

	brcmf_dbg(TRACE, "\n");

	/* Get the Card's common CIS address */
	sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
							   SDIO_CCCR_CIS);
	brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
		  sdiodev->func_cis_ptr[0]);

	/* Get the Card's function CIS (for each function) */
	for (fbraddr = SDIO_FBR_BASE(1), func = 1;
	     func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
		sdiodev->func_cis_ptr[func] =
		    brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
		brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
			  func, sdiodev->func_cis_ptr[func]);
	}

	/* Enable Function 1 */
	sdio_claim_host(sdiodev->func[1]);
	err_ret = sdio_enable_func(sdiodev->func[1]);
	sdio_release_host(sdiodev->func[1]);
	if (err_ret)
		brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret);

	return false;
}

/*
 *	Public entry points & extern's
 */
int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
{
	int err_ret = 0;

	brcmf_dbg(TRACE, "\n");

	sdiodev->num_funcs = 2;

	sdio_claim_host(sdiodev->func[1]);
	err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
	sdio_release_host(sdiodev->func[1]);
	if (err_ret) {
		brcmf_dbg(ERROR, "Failed to set F1 blocksize\n");
		goto out;
	}

	sdio_claim_host(sdiodev->func[2]);
	err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
	sdio_release_host(sdiodev->func[2]);
	if (err_ret) {
		brcmf_dbg(ERROR, "Failed to set F2 blocksize\n");
		goto out;
	}

	brcmf_sdioh_enablefuncs(sdiodev);

out:
	brcmf_dbg(TRACE, "Done\n");
	return err_ret;
}

void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
{
	brcmf_dbg(TRACE, "\n");

	/* Disable Function 2 */
	sdio_claim_host(sdiodev->func[2]);
	sdio_disable_func(sdiodev->func[2]);
	sdio_release_host(sdiodev->func[2]);

	/* Disable Function 1 */
	sdio_claim_host(sdiodev->func[1]);
	sdio_disable_func(sdiodev->func[1]);
	sdio_release_host(sdiodev->func[1]);

}

static int brcmf_ops_sdio_probe(struct sdio_func *func,
			      const struct sdio_device_id *id)
{
	int ret = 0;
	struct brcmf_sdio_dev *sdiodev;
	struct brcmf_bus *bus_if;
	brcmf_dbg(TRACE, "Enter\n");
	brcmf_dbg(TRACE, "func->class=%x\n", func->class);
	brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
	brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
	brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);

	if (func->num == 1) {
		if (dev_get_drvdata(&func->card->dev)) {
			brcmf_dbg(ERROR, "card private drvdata occupied\n");
			return -ENXIO;
		}
		bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
		if (!bus_if)
			return -ENOMEM;
		sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
		if (!sdiodev) {
			kfree(bus_if);
			return -ENOMEM;
		}
		sdiodev->func[0] = func;
		sdiodev->func[1] = func;
		sdiodev->bus_if = bus_if;
		bus_if->bus_priv.sdio = sdiodev;
		bus_if->type = SDIO_BUS;
		bus_if->align = BRCMF_SDALIGN;
		dev_set_drvdata(&func->card->dev, sdiodev);

		atomic_set(&sdiodev->suspend, false);
		init_waitqueue_head(&sdiodev->request_byte_wait);
		init_waitqueue_head(&sdiodev->request_word_wait);
		init_waitqueue_head(&sdiodev->request_chain_wait);
		init_waitqueue_head(&sdiodev->request_buffer_wait);
	}

	if (func->num == 2) {
		sdiodev = dev_get_drvdata(&func->card->dev);
		if ((!sdiodev) || (sdiodev->func[1]->card != func->card))
			return -ENODEV;
		sdiodev->func[2] = func;

		bus_if = sdiodev->bus_if;
		sdiodev->dev = &func->dev;
		dev_set_drvdata(&func->dev, bus_if);

		brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
		ret = brcmf_sdio_probe(sdiodev);
	}

	return ret;
}

static void brcmf_ops_sdio_remove(struct sdio_func *func)
{
	struct brcmf_bus *bus_if;
	struct brcmf_sdio_dev *sdiodev;
	brcmf_dbg(TRACE, "Enter\n");
	brcmf_dbg(INFO, "func->class=%x\n", func->class);
	brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
	brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
	brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);

	if (func->num == 2) {
		bus_if = dev_get_drvdata(&func->dev);
		sdiodev = bus_if->bus_priv.sdio;
		brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
		brcmf_sdio_remove(sdiodev);
		dev_set_drvdata(&func->card->dev, NULL);
		dev_set_drvdata(&func->dev, NULL);
		kfree(bus_if);
		kfree(sdiodev);
	}
}

#ifdef CONFIG_PM_SLEEP
static int brcmf_sdio_suspend(struct device *dev)
{
	mmc_pm_flag_t sdio_flags;
	struct sdio_func *func = dev_to_sdio_func(dev);
	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
	int ret = 0;

	brcmf_dbg(TRACE, "\n");

	atomic_set(&sdiodev->suspend, true);

	sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
		brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
		return -EINVAL;
	}

	ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
	if (ret) {
		brcmf_dbg(ERROR, "Failed to set pm_flags\n");
		return ret;
	}

	brcmf_sdio_wdtmr_enable(sdiodev, false);

	return ret;
}

static int brcmf_sdio_resume(struct device *dev)
{
	struct sdio_func *func = dev_to_sdio_func(dev);
	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);

	brcmf_sdio_wdtmr_enable(sdiodev, true);
	atomic_set(&sdiodev->suspend, false);
	return 0;
}

static const struct dev_pm_ops brcmf_sdio_pm_ops = {
	.suspend	= brcmf_sdio_suspend,
	.resume		= brcmf_sdio_resume,
};
#endif	/* CONFIG_PM_SLEEP */

static struct sdio_driver brcmf_sdmmc_driver = {
	.probe = brcmf_ops_sdio_probe,
	.remove = brcmf_ops_sdio_remove,
	.name = "brcmfmac",
	.id_table = brcmf_sdmmc_ids,
#ifdef CONFIG_PM_SLEEP
	.drv = {
		.pm = &brcmf_sdio_pm_ops,
	},
#endif	/* CONFIG_PM_SLEEP */
};

void brcmf_sdio_exit(void)
{
	brcmf_dbg(TRACE, "Enter\n");

	sdio_unregister_driver(&brcmf_sdmmc_driver);
}

void brcmf_sdio_init(void)
{
	int ret;

	brcmf_dbg(TRACE, "Enter\n");

	ret = sdio_register_driver(&brcmf_sdmmc_driver);

	if (ret)
		brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
}
Commit	Line	Data
5b435de0 AS	1	/*
	2	* Copyright (c) 2010 Broadcom Corporation
	3	*
	4	* Permission to use, copy, modify, and/or distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	11	* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
	13	* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
	14	* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
02f77195 JP	16
	17	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	18
5b435de0 AS	19	#include <linux/types.h>
	20	#include <linux/netdevice.h>
	21	#include <linux/mmc/sdio.h>
	22	#include <linux/mmc/core.h>
	23	#include <linux/mmc/sdio_func.h>
	24	#include <linux/mmc/sdio_ids.h>
	25	#include <linux/mmc/card.h>
	26	#include <linux/suspend.h>
	27	#include <linux/errno.h>
	28	#include <linux/sched.h> /* request_irq() */
b7a57e76	29	#include <linux/module.h>
5b435de0 AS	30	#include <net/cfg80211.h>
	31
	32	#include <defs.h>
	33	#include <brcm_hw_ids.h>
	34	#include <brcmu_utils.h>
	35	#include <brcmu_wifi.h>
	36	#include "sdio_host.h"
5b435de0	37	#include "dhd_dbg.h"
a8a363ac	38	#include "dhd_bus.h"
5b435de0 AS	39
	40	#define SDIO_VENDOR_ID_BROADCOM 0x02d0
	41
	42	#define DMA_ALIGN_MASK 0x03
	43
	44	#define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
ce2d7d7e	45	#define SDIO_DEVICE_ID_BROADCOM_4330 0x4330
5b435de0 AS	46
	47	#define SDIO_FUNC1_BLOCKSIZE 64
	48	#define SDIO_FUNC2_BLOCKSIZE 512
	49
	50	/* devices we support, null terminated */
	51	static const struct sdio_device_id brcmf_sdmmc_ids[] = {
	52	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
ce2d7d7e	53	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
5b435de0 AS	54	{ /* end: all zeroes */ },
	55	};
	56	MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
	57
	58	static bool
	59	brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
	60	{
	61	bool is_err = false;
	62	#ifdef CONFIG_PM_SLEEP
	63	is_err = atomic_read(&sdiodev->suspend);
	64	#endif
	65	return is_err;
	66	}
	67
	68	static void
	69	brcmf_pm_resume_wait(struct brcmf_sdio_dev sdiodev, wait_queue_head_t wq)
	70	{
	71	#ifdef CONFIG_PM_SLEEP
	72	int retry = 0;
	73	while (atomic_read(&sdiodev->suspend) && retry++ != 30)
	74	wait_event_timeout(*wq, false, HZ/100);
	75	#endif
	76	}
	77
	78	static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
	79	uint regaddr, u8 *byte)
	80	{
	81	struct sdio_func *sdfunc = sdiodev->func[0];
	82	int err_ret;
	83
	84	/*
	85	* Can only directly write to some F0 registers.
	86	* Handle F2 enable/disable and Abort command
	87	* as a special case.
	88	*/
	89	if (regaddr == SDIO_CCCR_IOEx) {
	90	sdfunc = sdiodev->func[2];
	91	if (sdfunc) {
	92	sdio_claim_host(sdfunc);
	93	if (*byte & SDIO_FUNC_ENABLE_2) {
	94	/* Enable Function 2 */
	95	err_ret = sdio_enable_func(sdfunc);
	96	if (err_ret)
	97	brcmf_dbg(ERROR,
	98	"enable F2 failed:%d\n",
	99	err_ret);
	100	} else {
	101	/* Disable Function 2 */
	102	err_ret = sdio_disable_func(sdfunc);
	103	if (err_ret)
	104	brcmf_dbg(ERROR,
	105	"Disable F2 failed:%d\n",
	106	err_ret);
	107	}
	108	sdio_release_host(sdfunc);
	109	}
	110	} else if (regaddr == SDIO_CCCR_ABORT) {
1cc26990 FL	111	sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
	112	GFP_KERNEL);
	113	if (!sdfunc)
	114	return -ENOMEM;
	115	sdfunc->num = 0;
5b435de0 AS	116	sdio_claim_host(sdfunc);
	117	sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
	118	sdio_release_host(sdfunc);
1cc26990	119	kfree(sdfunc);
5b435de0 AS	120	} else if (regaddr < 0xF0) {
	121	brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
	122	err_ret = -EPERM;
	123	} else {
	124	sdio_claim_host(sdfunc);
	125	sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
	126	sdio_release_host(sdfunc);
	127	}
	128
	129	return err_ret;
	130	}
	131
	132	int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
	133	uint regaddr, u8 *byte)
	134	{
	135	int err_ret;
	136
	137	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
	138
	139	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
	140	if (brcmf_pm_resume_error(sdiodev))
	141	return -EIO;
	142
	143	if (rw && func == 0) {
	144	/* handle F0 separately */
	145	err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
	146	} else {
	147	sdio_claim_host(sdiodev->func[func]);
	148	if (rw) /* CMD52 Write */
	149	sdio_writeb(sdiodev->func[func], *byte, regaddr,
	150	&err_ret);
	151	else if (func == 0) {
	152	*byte = sdio_f0_readb(sdiodev->func[func], regaddr,
	153	&err_ret);
	154	} else {
	155	*byte = sdio_readb(sdiodev->func[func], regaddr,
	156	&err_ret);
	157	}
	158	sdio_release_host(sdiodev->func[func]);
	159	}
	160
	161	if (err_ret)
	162	brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
	163	rw ? "write" : "read", func, regaddr, *byte, err_ret);
	164
	165	return err_ret;
	166	}
	167
	168	int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
	169	uint rw, uint func, uint addr, u32 *word,
	170	uint nbytes)
	171	{
	172	int err_ret = -EIO;
	173
	174	if (func == 0) {
	175	brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
	176	return -EINVAL;
	177	}
	178
	179	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
	180	rw, func, addr, nbytes);
	181
	182	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
	183	if (brcmf_pm_resume_error(sdiodev))
184	return -EIO;
185	/* Claim host controller */
186	sdio_claim_host(sdiodev->func[func]);
187
188	if (rw) { /* CMD52 Write */
189	if (nbytes == 4)
190	sdio_writel(sdiodev->func[func], *word, addr,
191	&err_ret);
192	else if (nbytes == 2)
193	sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
194	addr, &err_ret);
195	else
196	brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
197	} else { /* CMD52 Read */
198	if (nbytes == 4)
199	*word = sdio_readl(sdiodev->func[func], addr, &err_ret);
200	else if (nbytes == 2)
201	*word = sdio_readw(sdiodev->func[func], addr,
202	&err_ret) & 0xFFFF;
203	else
204	brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
205	}
206
207	/* Release host controller */
208	sdio_release_host(sdiodev->func[func]);
209
210	if (err_ret)
211	brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
212	rw ? "write" : "read", err_ret);
213
214	return err_ret;
215	}
216
5adfeb63 AS	217	/* precondition: host controller is claimed */
	218	static int
	219	brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
	220	uint func, uint addr, struct sk_buff *pkt, uint pktlen)
	221	{
	222	int err_ret = 0;
	223
	224	if ((write) && (!fifo)) {
	225	err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
	226	((u8 *) (pkt->data)), pktlen);
	227	} else if (write) {
	228	err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
	229	((u8 *) (pkt->data)), pktlen);
	230	} else if (fifo) {
	231	err_ret = sdio_readsb(sdiodev->func[func],
	232	((u8 *) (pkt->data)), addr, pktlen);
	233	} else {
	234	err_ret = sdio_memcpy_fromio(sdiodev->func[func],
	235	((u8 *) (pkt->data)),
	236	addr, pktlen);
	237	}
	238
	239	return err_ret;
	240	}
	241
a52dd17d AS	242	/*
	243	* This function takes a queue of packets. The packets on the queue
	244	* are assumed to be properly aligned by the caller.
	245	*/
5adfeb63 AS	246	int
	247	brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
	248	uint write, uint func, uint addr,
	249	struct sk_buff_head *pktq)
5b435de0 AS	250	{
	251	bool fifo = (fix_inc == SDIOH_DATA_FIX);
	252	u32 SGCount = 0;
	253	int err_ret = 0;
	254
5adfeb63	255	struct sk_buff *pkt;
5b435de0 AS	256
	257	brcmf_dbg(TRACE, "Enter\n");
	258
a52dd17d	259	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
5b435de0 AS	260	if (brcmf_pm_resume_error(sdiodev))
	261	return -EIO;
	262
	263	/* Claim host controller */
	264	sdio_claim_host(sdiodev->func[func]);
5adfeb63 AS	265
	266	skb_queue_walk(pktq, pkt) {
	267	uint pkt_len = pkt->len;
5b435de0 AS	268	pkt_len += 3;
	269	pkt_len &= 0xFFFFFFFC;
	270
5adfeb63 AS	271	err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
5adfeb63 AS	272	addr, pkt, pkt_len);
5b435de0 AS	273	if (err_ret) {
5b435de0 AS	274	brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
5adfeb63	275	write ? "TX" : "RX", pkt, SGCount, addr,
5b435de0 AS	276	pkt_len, err_ret);
	277	} else {
	278	brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
5adfeb63	279	write ? "TX" : "RX", pkt, SGCount, addr,
5b435de0 AS	280	pkt_len);
5b435de0 AS	281	}
5b435de0 AS	282	if (!fifo)
5b435de0 AS	283	addr += pkt_len;
5b435de0	284
5adfeb63	285	SGCount++;
5b435de0 AS	286	}
	287
	288	/* Release host controller */
	289	sdio_release_host(sdiodev->func[func]);
	290
	291	brcmf_dbg(TRACE, "Exit\n");
	292	return err_ret;
	293	}
	294
	295	/*
8054321b	296	* This function takes a single DMA-able packet.
5b435de0 AS	297	*/
	298	int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
	299	uint fix_inc, uint write, uint func, uint addr,
4c6e869d	300	struct sk_buff *pkt)
5b435de0	301	{
4c6e869d	302	int status;
2315992c	303	uint pkt_len;
8054321b	304	bool fifo = (fix_inc == SDIOH_DATA_FIX);
5b435de0 AS	305
	306	brcmf_dbg(TRACE, "Enter\n");
	307
4c6e869d AS	308	if (pkt == NULL)
4c6e869d AS	309	return -EINVAL;
2315992c	310	pkt_len = pkt->len;
4c6e869d	311
5b435de0 AS	312	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
	313	if (brcmf_pm_resume_error(sdiodev))
	314	return -EIO;
5b435de0	315
8054321b AS	316	/* Claim host controller */
8054321b AS	317	sdio_claim_host(sdiodev->func[func]);
5b435de0	318
8054321b AS	319	pkt_len += 3;
8054321b AS	320	pkt_len &= (uint)~3;
5b435de0	321
8054321b AS	322	status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
	323	addr, pkt, pkt_len);
	324	if (status) {
	325	brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
	326	write ? "TX" : "RX", pkt, addr, pkt_len, status);
	327	} else {
	328	brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
	329	write ? "TX" : "RX", pkt, addr, pkt_len);
5b435de0 AS	330	}
5b435de0 AS	331
8054321b AS	332	/* Release host controller */
	333	sdio_release_host(sdiodev->func[func]);
	334
4c6e869d	335	return status;
5b435de0 AS	336	}
	337
	338	/* Read client card reg */
	339	static int
	340	brcmf_sdioh_card_regread(struct brcmf_sdio_dev *sdiodev, int func, u32 regaddr,
	341	int regsize, u32 *data)
	342	{
	343
	344	if ((func == 0) \|\| (regsize == 1)) {
	345	u8 temp = 0;
	346
	347	brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, func, regaddr,
	348	&temp);
	349	*data = temp;
	350	*data &= 0xff;
	351	brcmf_dbg(DATA, "byte read data=0x%02x\n", *data);
	352	} else {
	353	brcmf_sdioh_request_word(sdiodev, SDIOH_READ, func, regaddr,
	354	data, regsize);
	355	if (regsize == 2)
	356	*data &= 0xffff;
	357
	358	brcmf_dbg(DATA, "word read data=0x%08x\n", *data);
	359	}
	360
	361	return SUCCESS;
	362	}
	363
	364	static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
	365	{
	366	/* read 24 bits and return valid 17 bit addr */
	367	int i;
	368	u32 scratch, regdata;
	369	__le32 scratch_le;
	370	u8 ptr = (u8 )&scratch_le;
	371
	372	for (i = 0; i < 3; i++) {
	373	if ((brcmf_sdioh_card_regread(sdiodev, 0, regaddr, 1,
	374	&regdata)) != SUCCESS)
	375	brcmf_dbg(ERROR, "Can't read!\n");
	376
	377	*ptr++ = (u8) regdata;
	378	regaddr++;
	379	}
	380
	381	/* Only the lower 17-bits are valid */
	382	scratch = le32_to_cpu(scratch_le);
	383	scratch &= 0x0001FFFF;
	384	return scratch;
	385	}
	386
	387	static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
	388	{
	389	int err_ret;
	390	u32 fbraddr;
	391	u8 func;
	392
	393	brcmf_dbg(TRACE, "\n");
	394
	395	/* Get the Card's common CIS address */
	396	sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
	397	SDIO_CCCR_CIS);
	398	brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
	399	sdiodev->func_cis_ptr[0]);
400
401	/* Get the Card's function CIS (for each function) */
402	for (fbraddr = SDIO_FBR_BASE(1), func = 1;
403	func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
404	sdiodev->func_cis_ptr[func] =
405	brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
406	brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
407	func, sdiodev->func_cis_ptr[func]);
408	}
409
410	/* Enable Function 1 */
411	sdio_claim_host(sdiodev->func[1]);
412	err_ret = sdio_enable_func(sdiodev->func[1]);
413	sdio_release_host(sdiodev->func[1]);
414	if (err_ret)
415	brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret);
416
417	return false;
418	}
419
420	/*
421	* Public entry points & extern's
422	*/
423	int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
424	{
425	int err_ret = 0;
426
427	brcmf_dbg(TRACE, "\n");
428
429	sdiodev->num_funcs = 2;
430
431	sdio_claim_host(sdiodev->func[1]);
432	err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
433	sdio_release_host(sdiodev->func[1]);
434	if (err_ret) {
435	brcmf_dbg(ERROR, "Failed to set F1 blocksize\n");
436	goto out;
437	}
438
439	sdio_claim_host(sdiodev->func[2]);
440	err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
441	sdio_release_host(sdiodev->func[2]);
442	if (err_ret) {
443	brcmf_dbg(ERROR, "Failed to set F2 blocksize\n");
444	goto out;
445	}
446
447	brcmf_sdioh_enablefuncs(sdiodev);
448
449	out:
450	brcmf_dbg(TRACE, "Done\n");
451	return err_ret;
452	}
453
454	void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
455	{
456	brcmf_dbg(TRACE, "\n");
457
458	/* Disable Function 2 */
459	sdio_claim_host(sdiodev->func[2]);
460	sdio_disable_func(sdiodev->func[2]);
461	sdio_release_host(sdiodev->func[2]);
462
463	/* Disable Function 1 */
464	sdio_claim_host(sdiodev->func[1]);
465	sdio_disable_func(sdiodev->func[1]);
466	sdio_release_host(sdiodev->func[1]);
467
468	}
469
470	static int brcmf_ops_sdio_probe(struct sdio_func *func,
471	const struct sdio_device_id *id)
472	{
473	int ret = 0;
474	struct brcmf_sdio_dev *sdiodev;
655713be	475	struct brcmf_bus *bus_if;
5b435de0 AS	476	brcmf_dbg(TRACE, "Enter\n");
	477	brcmf_dbg(TRACE, "func->class=%x\n", func->class);
	478	brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
	479	brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
	480	brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);
	481
	482	if (func->num == 1) {
	483	if (dev_get_drvdata(&func->card->dev)) {
	484	brcmf_dbg(ERROR, "card private drvdata occupied\n");
	485	return -ENXIO;
	486	}
655713be FL	487	bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
	488	if (!bus_if)
	489	return -ENOMEM;
5b435de0	490	sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
ad9547c0 DC	491	if (!sdiodev) {
ad9547c0 DC	492	kfree(bus_if);
5b435de0	493	return -ENOMEM;
ad9547c0	494	}
1cc26990	495	sdiodev->func[0] = func;
5b435de0	496	sdiodev->func[1] = func;
d76d1c8c	497	sdiodev->bus_if = bus_if;
0a332e46	498	bus_if->bus_priv.sdio = sdiodev;
655713be	499	bus_if->type = SDIO_BUS;
6e3c7128	500	bus_if->align = BRCMF_SDALIGN;
d76d1c8c	501	dev_set_drvdata(&func->card->dev, sdiodev);
5b435de0 AS	502
	503	atomic_set(&sdiodev->suspend, false);
	504	init_waitqueue_head(&sdiodev->request_byte_wait);
	505	init_waitqueue_head(&sdiodev->request_word_wait);
a52dd17d	506	init_waitqueue_head(&sdiodev->request_chain_wait);
5b435de0 AS	507	init_waitqueue_head(&sdiodev->request_buffer_wait);
	508	}
	509
	510	if (func->num == 2) {
d76d1c8c	511	sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0 AS	512	if ((!sdiodev) \|\| (sdiodev->func[1]->card != func->card))
	513	return -ENODEV;
	514	sdiodev->func[2] = func;
	515
d76d1c8c FL	516	bus_if = sdiodev->bus_if;
	517	sdiodev->dev = &func->dev;
	518	dev_set_drvdata(&func->dev, bus_if);
	519
5b435de0 AS	520	brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
	521	ret = brcmf_sdio_probe(sdiodev);
	522	}
	523
	524	return ret;
	525	}
	526
	527	static void brcmf_ops_sdio_remove(struct sdio_func *func)
	528	{
655713be	529	struct brcmf_bus *bus_if;
5b435de0 AS	530	struct brcmf_sdio_dev *sdiodev;
	531	brcmf_dbg(TRACE, "Enter\n");
	532	brcmf_dbg(INFO, "func->class=%x\n", func->class);
	533	brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
	534	brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
	535	brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);
	536
	537	if (func->num == 2) {
d76d1c8c	538	bus_if = dev_get_drvdata(&func->dev);
0a332e46	539	sdiodev = bus_if->bus_priv.sdio;
5b435de0 AS	540	brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
	541	brcmf_sdio_remove(sdiodev);
	542	dev_set_drvdata(&func->card->dev, NULL);
d76d1c8c	543	dev_set_drvdata(&func->dev, NULL);
655713be	544	kfree(bus_if);
5b435de0 AS	545	kfree(sdiodev);
	546	}
	547	}
	548
	549	#ifdef CONFIG_PM_SLEEP
	550	static int brcmf_sdio_suspend(struct device *dev)
	551	{
	552	mmc_pm_flag_t sdio_flags;
5b435de0	553	struct sdio_func *func = dev_to_sdio_func(dev);
d76d1c8c	554	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0 AS	555	int ret = 0;
	556
	557	brcmf_dbg(TRACE, "\n");
	558
5b435de0 AS	559	atomic_set(&sdiodev->suspend, true);
	560
	561	sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
	562	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
	563	brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
	564	return -EINVAL;
	565	}
	566
	567	ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
	568	if (ret) {
	569	brcmf_dbg(ERROR, "Failed to set pm_flags\n");
	570	return ret;
	571	}
	572
	573	brcmf_sdio_wdtmr_enable(sdiodev, false);
	574
	575	return ret;
	576	}
	577
	578	static int brcmf_sdio_resume(struct device *dev)
	579	{
5b435de0	580	struct sdio_func *func = dev_to_sdio_func(dev);
d76d1c8c	581	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0	582
5b435de0 AS	583	brcmf_sdio_wdtmr_enable(sdiodev, true);
	584	atomic_set(&sdiodev->suspend, false);
	585	return 0;
	586	}
	587
	588	static const struct dev_pm_ops brcmf_sdio_pm_ops = {
	589	.suspend = brcmf_sdio_suspend,
	590	.resume = brcmf_sdio_resume,
	591	};
	592	#endif /* CONFIG_PM_SLEEP */
	593
	594	static struct sdio_driver brcmf_sdmmc_driver = {
	595	.probe = brcmf_ops_sdio_probe,
	596	.remove = brcmf_ops_sdio_remove,
	597	.name = "brcmfmac",
	598	.id_table = brcmf_sdmmc_ids,
	599	#ifdef CONFIG_PM_SLEEP
	600	.drv = {
	601	.pm = &brcmf_sdio_pm_ops,
	602	},
	603	#endif /* CONFIG_PM_SLEEP */
	604	};
	605
f3d7cdc3	606	void brcmf_sdio_exit(void)
5b435de0 AS	607	{
	608	brcmf_dbg(TRACE, "Enter\n");
	609
3392c888	610	sdio_unregister_driver(&brcmf_sdmmc_driver);
5b435de0 AS	611	}
5b435de0 AS	612
549040ab	613	void brcmf_sdio_init(void)
5b435de0	614	{
3392c888 FL	615	int ret;
3392c888 FL	616
5b435de0 AS	617	brcmf_dbg(TRACE, "Enter\n");
5b435de0 AS	618
3392c888 FL	619	ret = sdio_register_driver(&brcmf_sdmmc_driver);
	620
	621	if (ret)
	622	brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
5b435de0	623	}