[linux-2.6-block.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 <linux/platform_device.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_DEVICE_ID_BROADCOM_4334	0x4334

#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)},
	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
	{ /* end: all zeroes */ },
};
MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static struct list_head oobirq_lh;
struct brcmf_sdio_oobirq {
	unsigned int irq;
	unsigned long flags;
	struct list_head list;
};
#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */

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) ||
		   (regaddr == SDIO_CCCR_IENx)) {
		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;
}

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

	for (i = 0; i < 3; i++) {
		regdata = brcmf_sdio_regrl(sdiodev, regaddr, &ret);
		if (ret != 0)
			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]);

}

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
{
	struct brcmf_sdio_oobirq *oobirq_entry;

	if (list_empty(&oobirq_lh)) {
		brcmf_dbg(ERROR, "no valid oob irq resource\n");
		return -ENXIO;
	}

	oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
					list);

	sdiodev->irq = oobirq_entry->irq;
	sdiodev->irq_flags = oobirq_entry->flags;
	list_del(&oobirq_entry->list);
	kfree(oobirq_entry);

	return 0;
}
#else
static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
{
	return 0;
}
#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */

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;

		ret = brcmf_sdio_getintrcfg(sdiodev);
		if (ret)
			return ret;
		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 */
};

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static int brcmf_sdio_pd_probe(struct platform_device *pdev)
{
	struct resource *res;
	struct brcmf_sdio_oobirq *oobirq_entry;
	int i, ret;

	INIT_LIST_HEAD(&oobirq_lh);

	for (i = 0; ; i++) {
		res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
		if (!res)
			break;

		oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
				       GFP_KERNEL);
		oobirq_entry->irq = res->start;
		oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
		list_add_tail(&oobirq_entry->list, &oobirq_lh);
	}
	if (i == 0)
		return -ENXIO;

	ret = sdio_register_driver(&brcmf_sdmmc_driver);

	if (ret)
		brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);

	return ret;
}

static struct platform_driver brcmf_sdio_pd = {
	.probe		= brcmf_sdio_pd_probe,
	.driver		= {
		.name	= "brcmf_sdio_pd"
	}
};

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

	sdio_unregister_driver(&brcmf_sdmmc_driver);

	platform_driver_unregister(&brcmf_sdio_pd);
}

void brcmf_sdio_init(void)
{
	int ret;

	brcmf_dbg(TRACE, "Enter\n");

	ret = platform_driver_register(&brcmf_sdio_pd);

	if (ret)
		brcmf_dbg(ERROR, "platform_driver_register failed: %d\n", ret);
}
#else
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);
}
#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
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>
ba89bf19	30	#include <linux/platform_device.h>
5b435de0 AS	31	#include <net/cfg80211.h>
	32
	33	#include <defs.h>
	34	#include <brcm_hw_ids.h>
	35	#include <brcmu_utils.h>
	36	#include <brcmu_wifi.h>
	37	#include "sdio_host.h"
5b435de0	38	#include "dhd_dbg.h"
a8a363ac	39	#include "dhd_bus.h"
5b435de0 AS	40
	41	#define SDIO_VENDOR_ID_BROADCOM 0x02d0
	42
	43	#define DMA_ALIGN_MASK 0x03
	44
	45	#define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
ce2d7d7e	46	#define SDIO_DEVICE_ID_BROADCOM_4330 0x4330
85a4a1c3	47	#define SDIO_DEVICE_ID_BROADCOM_4334 0x4334
5b435de0 AS	48
	49	#define SDIO_FUNC1_BLOCKSIZE 64
	50	#define SDIO_FUNC2_BLOCKSIZE 512
	51
	52	/* devices we support, null terminated */
	53	static const struct sdio_device_id brcmf_sdmmc_ids[] = {
	54	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
ce2d7d7e	55	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
85a4a1c3	56	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
5b435de0 AS	57	{ /* end: all zeroes */ },
	58	};
	59	MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
	60
ba89bf19 FL	61	#ifdef CONFIG_BRCMFMAC_SDIO_OOB
	62	static struct list_head oobirq_lh;
	63	struct brcmf_sdio_oobirq {
	64	unsigned int irq;
	65	unsigned long flags;
	66	struct list_head list;
	67	};
	68	#endif /* CONFIG_BRCMFMAC_SDIO_OOB */
	69
5b435de0 AS	70	static bool
	71	brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
	72	{
	73	bool is_err = false;
	74	#ifdef CONFIG_PM_SLEEP
	75	is_err = atomic_read(&sdiodev->suspend);
	76	#endif
	77	return is_err;
	78	}
	79
	80	static void
	81	brcmf_pm_resume_wait(struct brcmf_sdio_dev sdiodev, wait_queue_head_t wq)
	82	{
	83	#ifdef CONFIG_PM_SLEEP
	84	int retry = 0;
	85	while (atomic_read(&sdiodev->suspend) && retry++ != 30)
	86	wait_event_timeout(*wq, false, HZ/100);
	87	#endif
	88	}
	89
	90	static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
	91	uint regaddr, u8 *byte)
	92	{
	93	struct sdio_func *sdfunc = sdiodev->func[0];
	94	int err_ret;
	95
	96	/*
	97	* Can only directly write to some F0 registers.
	98	* Handle F2 enable/disable and Abort command
	99	* as a special case.
	100	*/
	101	if (regaddr == SDIO_CCCR_IOEx) {
	102	sdfunc = sdiodev->func[2];
	103	if (sdfunc) {
	104	sdio_claim_host(sdfunc);
	105	if (*byte & SDIO_FUNC_ENABLE_2) {
	106	/* Enable Function 2 */
	107	err_ret = sdio_enable_func(sdfunc);
	108	if (err_ret)
	109	brcmf_dbg(ERROR,
	110	"enable F2 failed:%d\n",
	111	err_ret);
	112	} else {
	113	/* Disable Function 2 */
	114	err_ret = sdio_disable_func(sdfunc);
	115	if (err_ret)
	116	brcmf_dbg(ERROR,
	117	"Disable F2 failed:%d\n",
	118	err_ret);
	119	}
	120	sdio_release_host(sdfunc);
	121	}
ba89bf19 FL	122	} else if ((regaddr == SDIO_CCCR_ABORT) \|\|
ba89bf19 FL	123	(regaddr == SDIO_CCCR_IENx)) {
1cc26990 FL	124	sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
	125	GFP_KERNEL);
	126	if (!sdfunc)
	127	return -ENOMEM;
	128	sdfunc->num = 0;
5b435de0 AS	129	sdio_claim_host(sdfunc);
	130	sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
	131	sdio_release_host(sdfunc);
1cc26990	132	kfree(sdfunc);
5b435de0 AS	133	} else if (regaddr < 0xF0) {
	134	brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
	135	err_ret = -EPERM;
	136	} else {
	137	sdio_claim_host(sdfunc);
	138	sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
	139	sdio_release_host(sdfunc);
	140	}
	141
	142	return err_ret;
	143	}
	144
	145	int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
	146	uint regaddr, u8 *byte)
	147	{
	148	int err_ret;
	149
	150	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
	151
	152	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
	153	if (brcmf_pm_resume_error(sdiodev))
	154	return -EIO;
	155
	156	if (rw && func == 0) {
	157	/* handle F0 separately */
	158	err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
	159	} else {
	160	sdio_claim_host(sdiodev->func[func]);
	161	if (rw) /* CMD52 Write */
	162	sdio_writeb(sdiodev->func[func], *byte, regaddr,
	163	&err_ret);
	164	else if (func == 0) {
	165	*byte = sdio_f0_readb(sdiodev->func[func], regaddr,
	166	&err_ret);
	167	} else {
	168	*byte = sdio_readb(sdiodev->func[func], regaddr,
	169	&err_ret);
	170	}
	171	sdio_release_host(sdiodev->func[func]);
	172	}
	173
	174	if (err_ret)
	175	brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
	176	rw ? "write" : "read", func, regaddr, *byte, err_ret);
	177
	178	return err_ret;
	179	}
	180
	181	int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
	182	uint rw, uint func, uint addr, u32 *word,
	183	uint nbytes)
	184	{
	185	int err_ret = -EIO;
	186
	187	if (func == 0) {
	188	brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
	189	return -EINVAL;
	190	}
	191
	192	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
	193	rw, func, addr, nbytes);
	194
	195	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
	196	if (brcmf_pm_resume_error(sdiodev))
197	return -EIO;
198	/* Claim host controller */
199	sdio_claim_host(sdiodev->func[func]);
200
201	if (rw) { /* CMD52 Write */
202	if (nbytes == 4)
203	sdio_writel(sdiodev->func[func], *word, addr,
204	&err_ret);
205	else if (nbytes == 2)
206	sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
207	addr, &err_ret);
208	else
209	brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
210	} else { /* CMD52 Read */
211	if (nbytes == 4)
212	*word = sdio_readl(sdiodev->func[func], addr, &err_ret);
213	else if (nbytes == 2)
214	*word = sdio_readw(sdiodev->func[func], addr,
215	&err_ret) & 0xFFFF;
216	else
217	brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
218	}
219
220	/* Release host controller */
221	sdio_release_host(sdiodev->func[func]);
222
223	if (err_ret)
224	brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
225	rw ? "write" : "read", err_ret);
226
227	return err_ret;
228	}
229
5adfeb63 AS	230	/* precondition: host controller is claimed */
	231	static int
	232	brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
	233	uint func, uint addr, struct sk_buff *pkt, uint pktlen)
	234	{
	235	int err_ret = 0;
	236
	237	if ((write) && (!fifo)) {
	238	err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
	239	((u8 *) (pkt->data)), pktlen);
	240	} else if (write) {
	241	err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
	242	((u8 *) (pkt->data)), pktlen);
	243	} else if (fifo) {
	244	err_ret = sdio_readsb(sdiodev->func[func],
	245	((u8 *) (pkt->data)), addr, pktlen);
	246	} else {
	247	err_ret = sdio_memcpy_fromio(sdiodev->func[func],
	248	((u8 *) (pkt->data)),
	249	addr, pktlen);
	250	}
	251
	252	return err_ret;
	253	}
	254
a52dd17d AS	255	/*
	256	* This function takes a queue of packets. The packets on the queue
	257	* are assumed to be properly aligned by the caller.
	258	*/
5adfeb63 AS	259	int
	260	brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
	261	uint write, uint func, uint addr,
	262	struct sk_buff_head *pktq)
5b435de0 AS	263	{
	264	bool fifo = (fix_inc == SDIOH_DATA_FIX);
	265	u32 SGCount = 0;
	266	int err_ret = 0;
	267
5adfeb63	268	struct sk_buff *pkt;
5b435de0 AS	269
	270	brcmf_dbg(TRACE, "Enter\n");
	271
a52dd17d	272	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
5b435de0 AS	273	if (brcmf_pm_resume_error(sdiodev))
	274	return -EIO;
	275
	276	/* Claim host controller */
	277	sdio_claim_host(sdiodev->func[func]);
5adfeb63 AS	278
	279	skb_queue_walk(pktq, pkt) {
	280	uint pkt_len = pkt->len;
5b435de0 AS	281	pkt_len += 3;
	282	pkt_len &= 0xFFFFFFFC;
	283
5adfeb63 AS	284	err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
5adfeb63 AS	285	addr, pkt, pkt_len);
5b435de0 AS	286	if (err_ret) {
5b435de0 AS	287	brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
5adfeb63	288	write ? "TX" : "RX", pkt, SGCount, addr,
5b435de0 AS	289	pkt_len, err_ret);
	290	} else {
	291	brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
5adfeb63	292	write ? "TX" : "RX", pkt, SGCount, addr,
5b435de0 AS	293	pkt_len);
5b435de0 AS	294	}
5b435de0 AS	295	if (!fifo)
5b435de0 AS	296	addr += pkt_len;
5b435de0	297
5adfeb63	298	SGCount++;
5b435de0 AS	299	}
	300
	301	/* Release host controller */
	302	sdio_release_host(sdiodev->func[func]);
	303
	304	brcmf_dbg(TRACE, "Exit\n");
	305	return err_ret;
	306	}
	307
	308	/*
8054321b	309	* This function takes a single DMA-able packet.
5b435de0 AS	310	*/
	311	int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
	312	uint fix_inc, uint write, uint func, uint addr,
4c6e869d	313	struct sk_buff *pkt)
5b435de0	314	{
4c6e869d	315	int status;
2315992c	316	uint pkt_len;
8054321b	317	bool fifo = (fix_inc == SDIOH_DATA_FIX);
5b435de0 AS	318
	319	brcmf_dbg(TRACE, "Enter\n");
	320
4c6e869d AS	321	if (pkt == NULL)
4c6e869d AS	322	return -EINVAL;
2315992c	323	pkt_len = pkt->len;
4c6e869d	324
5b435de0 AS	325	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
	326	if (brcmf_pm_resume_error(sdiodev))
	327	return -EIO;
5b435de0	328
8054321b AS	329	/* Claim host controller */
8054321b AS	330	sdio_claim_host(sdiodev->func[func]);
5b435de0	331
8054321b AS	332	pkt_len += 3;
8054321b AS	333	pkt_len &= (uint)~3;
5b435de0	334
8054321b AS	335	status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
	336	addr, pkt, pkt_len);
	337	if (status) {
	338	brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
	339	write ? "TX" : "RX", pkt, addr, pkt_len, status);
	340	} else {
	341	brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
	342	write ? "TX" : "RX", pkt, addr, pkt_len);
5b435de0 AS	343	}
5b435de0 AS	344
8054321b AS	345	/* Release host controller */
	346	sdio_release_host(sdiodev->func[func]);
	347
4c6e869d	348	return status;
5b435de0 AS	349	}
5b435de0 AS	350
5b435de0 AS	351	static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
	352	{
	353	/* read 24 bits and return valid 17 bit addr */
d8b3fc59	354	int i, ret;
5b435de0 AS	355	u32 scratch, regdata;
	356	__le32 scratch_le;
	357	u8 ptr = (u8 )&scratch_le;
	358
	359	for (i = 0; i < 3; i++) {
d8b3fc59 FL	360	regdata = brcmf_sdio_regrl(sdiodev, regaddr, &ret);
d8b3fc59 FL	361	if (ret != 0)
5b435de0 AS	362	brcmf_dbg(ERROR, "Can't read!\n");
	363
	364	*ptr++ = (u8) regdata;
	365	regaddr++;
	366	}
	367
	368	/* Only the lower 17-bits are valid */
	369	scratch = le32_to_cpu(scratch_le);
	370	scratch &= 0x0001FFFF;
	371	return scratch;
	372	}
	373
	374	static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
	375	{
	376	int err_ret;
	377	u32 fbraddr;
	378	u8 func;
	379
	380	brcmf_dbg(TRACE, "\n");
	381
	382	/* Get the Card's common CIS address */
	383	sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
	384	SDIO_CCCR_CIS);
	385	brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
	386	sdiodev->func_cis_ptr[0]);
	387
	388	/* Get the Card's function CIS (for each function) */
	389	for (fbraddr = SDIO_FBR_BASE(1), func = 1;
	390	func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
	391	sdiodev->func_cis_ptr[func] =
	392	brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
	393	brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
	394	func, sdiodev->func_cis_ptr[func]);
	395	}
	396
	397	/* Enable Function 1 */
	398	sdio_claim_host(sdiodev->func[1]);
	399	err_ret = sdio_enable_func(sdiodev->func[1]);
	400	sdio_release_host(sdiodev->func[1]);
	401	if (err_ret)
	402	brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret);
	403
	404	return false;
	405	}
	406
	407	/*
	408	* Public entry points & extern's
	409	*/
	410	int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
	411	{
	412	int err_ret = 0;
	413
	414	brcmf_dbg(TRACE, "\n");
	415
	416	sdiodev->num_funcs = 2;
	417
	418	sdio_claim_host(sdiodev->func[1]);
	419	err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
	420	sdio_release_host(sdiodev->func[1]);
	421	if (err_ret) {
	422	brcmf_dbg(ERROR, "Failed to set F1 blocksize\n");
	423	goto out;
	424	}
	425
426	sdio_claim_host(sdiodev->func[2]);
427	err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
428	sdio_release_host(sdiodev->func[2]);
429	if (err_ret) {
430	brcmf_dbg(ERROR, "Failed to set F2 blocksize\n");
431	goto out;
432	}
433
434	brcmf_sdioh_enablefuncs(sdiodev);
435
436	out:
437	brcmf_dbg(TRACE, "Done\n");
438	return err_ret;
439	}
440
441	void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
442	{
443	brcmf_dbg(TRACE, "\n");
444
445	/* Disable Function 2 */
446	sdio_claim_host(sdiodev->func[2]);
447	sdio_disable_func(sdiodev->func[2]);
448	sdio_release_host(sdiodev->func[2]);
449
450	/* Disable Function 1 */
451	sdio_claim_host(sdiodev->func[1]);
452	sdio_disable_func(sdiodev->func[1]);
453	sdio_release_host(sdiodev->func[1]);
454
455	}
456
ba89bf19 FL	457	#ifdef CONFIG_BRCMFMAC_SDIO_OOB
	458	static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
	459	{
	460	struct brcmf_sdio_oobirq *oobirq_entry;
	461
	462	if (list_empty(&oobirq_lh)) {
	463	brcmf_dbg(ERROR, "no valid oob irq resource\n");
	464	return -ENXIO;
	465	}
	466
	467	oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
	468	list);
	469
	470	sdiodev->irq = oobirq_entry->irq;
	471	sdiodev->irq_flags = oobirq_entry->flags;
	472	list_del(&oobirq_entry->list);
	473	kfree(oobirq_entry);
	474
	475	return 0;
	476	}
	477	#else
	478	static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
	479	{
	480	return 0;
	481	}
	482	#endif /* CONFIG_BRCMFMAC_SDIO_OOB */
	483
5b435de0 AS	484	static int brcmf_ops_sdio_probe(struct sdio_func *func,
	485	const struct sdio_device_id *id)
	486	{
	487	int ret = 0;
	488	struct brcmf_sdio_dev *sdiodev;
655713be	489	struct brcmf_bus *bus_if;
ba89bf19	490
5b435de0 AS	491	brcmf_dbg(TRACE, "Enter\n");
	492	brcmf_dbg(TRACE, "func->class=%x\n", func->class);
	493	brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
	494	brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
	495	brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);
	496
	497	if (func->num == 1) {
	498	if (dev_get_drvdata(&func->card->dev)) {
	499	brcmf_dbg(ERROR, "card private drvdata occupied\n");
	500	return -ENXIO;
	501	}
655713be FL	502	bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
	503	if (!bus_if)
	504	return -ENOMEM;
5b435de0	505	sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
ad9547c0 DC	506	if (!sdiodev) {
ad9547c0 DC	507	kfree(bus_if);
5b435de0	508	return -ENOMEM;
ad9547c0	509	}
1cc26990	510	sdiodev->func[0] = func;
5b435de0	511	sdiodev->func[1] = func;
d76d1c8c	512	sdiodev->bus_if = bus_if;
0a332e46	513	bus_if->bus_priv.sdio = sdiodev;
655713be	514	bus_if->type = SDIO_BUS;
6e3c7128	515	bus_if->align = BRCMF_SDALIGN;
d76d1c8c	516	dev_set_drvdata(&func->card->dev, sdiodev);
5b435de0 AS	517
	518	atomic_set(&sdiodev->suspend, false);
	519	init_waitqueue_head(&sdiodev->request_byte_wait);
	520	init_waitqueue_head(&sdiodev->request_word_wait);
a52dd17d	521	init_waitqueue_head(&sdiodev->request_chain_wait);
5b435de0 AS	522	init_waitqueue_head(&sdiodev->request_buffer_wait);
	523	}
	524
	525	if (func->num == 2) {
d76d1c8c	526	sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0 AS	527	if ((!sdiodev) \|\| (sdiodev->func[1]->card != func->card))
5b435de0 AS	528	return -ENODEV;
ba89bf19 FL	529
	530	ret = brcmf_sdio_getintrcfg(sdiodev);
	531	if (ret)
	532	return ret;
5b435de0 AS	533	sdiodev->func[2] = func;
5b435de0 AS	534
d76d1c8c FL	535	bus_if = sdiodev->bus_if;
	536	sdiodev->dev = &func->dev;
	537	dev_set_drvdata(&func->dev, bus_if);
	538
5b435de0 AS	539	brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
	540	ret = brcmf_sdio_probe(sdiodev);
	541	}
	542
	543	return ret;
	544	}
	545
	546	static void brcmf_ops_sdio_remove(struct sdio_func *func)
	547	{
655713be	548	struct brcmf_bus *bus_if;
5b435de0 AS	549	struct brcmf_sdio_dev *sdiodev;
	550	brcmf_dbg(TRACE, "Enter\n");
	551	brcmf_dbg(INFO, "func->class=%x\n", func->class);
	552	brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
	553	brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
	554	brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);
	555
	556	if (func->num == 2) {
d76d1c8c	557	bus_if = dev_get_drvdata(&func->dev);
0a332e46	558	sdiodev = bus_if->bus_priv.sdio;
5b435de0 AS	559	brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
	560	brcmf_sdio_remove(sdiodev);
	561	dev_set_drvdata(&func->card->dev, NULL);
d76d1c8c	562	dev_set_drvdata(&func->dev, NULL);
655713be	563	kfree(bus_if);
5b435de0 AS	564	kfree(sdiodev);
	565	}
	566	}
	567
	568	#ifdef CONFIG_PM_SLEEP
	569	static int brcmf_sdio_suspend(struct device *dev)
	570	{
	571	mmc_pm_flag_t sdio_flags;
5b435de0	572	struct sdio_func *func = dev_to_sdio_func(dev);
d76d1c8c	573	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0 AS	574	int ret = 0;
	575
	576	brcmf_dbg(TRACE, "\n");
	577
5b435de0 AS	578	atomic_set(&sdiodev->suspend, true);
	579
	580	sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
	581	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
	582	brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
	583	return -EINVAL;
	584	}
	585
	586	ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
	587	if (ret) {
	588	brcmf_dbg(ERROR, "Failed to set pm_flags\n");
	589	return ret;
	590	}
	591
	592	brcmf_sdio_wdtmr_enable(sdiodev, false);
	593
	594	return ret;
	595	}
	596
	597	static int brcmf_sdio_resume(struct device *dev)
	598	{
5b435de0	599	struct sdio_func *func = dev_to_sdio_func(dev);
d76d1c8c	600	struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
5b435de0	601
5b435de0 AS	602	brcmf_sdio_wdtmr_enable(sdiodev, true);
	603	atomic_set(&sdiodev->suspend, false);
	604	return 0;
	605	}
	606
	607	static const struct dev_pm_ops brcmf_sdio_pm_ops = {
	608	.suspend = brcmf_sdio_suspend,
	609	.resume = brcmf_sdio_resume,
	610	};
	611	#endif /* CONFIG_PM_SLEEP */
	612
	613	static struct sdio_driver brcmf_sdmmc_driver = {
	614	.probe = brcmf_ops_sdio_probe,
	615	.remove = brcmf_ops_sdio_remove,
	616	.name = "brcmfmac",
	617	.id_table = brcmf_sdmmc_ids,
	618	#ifdef CONFIG_PM_SLEEP
	619	.drv = {
	620	.pm = &brcmf_sdio_pm_ops,
	621	},
	622	#endif /* CONFIG_PM_SLEEP */
	623	};
	624
ba89bf19 FL	625	#ifdef CONFIG_BRCMFMAC_SDIO_OOB
	626	static int brcmf_sdio_pd_probe(struct platform_device *pdev)
	627	{
	628	struct resource *res;
	629	struct brcmf_sdio_oobirq *oobirq_entry;
	630	int i, ret;
	631
	632	INIT_LIST_HEAD(&oobirq_lh);
	633
	634	for (i = 0; ; i++) {
	635	res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
	636	if (!res)
	637	break;
	638
	639	oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
	640	GFP_KERNEL);
	641	oobirq_entry->irq = res->start;
	642	oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
	643	list_add_tail(&oobirq_entry->list, &oobirq_lh);
	644	}
	645	if (i == 0)
	646	return -ENXIO;
	647
	648	ret = sdio_register_driver(&brcmf_sdmmc_driver);
	649
	650	if (ret)
	651	brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
	652
	653	return ret;
	654	}
	655
	656	static struct platform_driver brcmf_sdio_pd = {
	657	.probe = brcmf_sdio_pd_probe,
	658	.driver = {
	659	.name = "brcmf_sdio_pd"
	660	}
	661	};
	662
	663	void brcmf_sdio_exit(void)
	664	{
	665	brcmf_dbg(TRACE, "Enter\n");
	666
	667	sdio_unregister_driver(&brcmf_sdmmc_driver);
	668
	669	platform_driver_unregister(&brcmf_sdio_pd);
	670	}
	671
	672	void brcmf_sdio_init(void)
	673	{
	674	int ret;
	675
	676	brcmf_dbg(TRACE, "Enter\n");
	677
	678	ret = platform_driver_register(&brcmf_sdio_pd);
	679
	680	if (ret)
	681	brcmf_dbg(ERROR, "platform_driver_register failed: %d\n", ret);
	682	}
	683	#else
f3d7cdc3	684	void brcmf_sdio_exit(void)
5b435de0 AS	685	{
	686	brcmf_dbg(TRACE, "Enter\n");
	687
3392c888	688	sdio_unregister_driver(&brcmf_sdmmc_driver);
5b435de0 AS	689	}
5b435de0 AS	690
549040ab	691	void brcmf_sdio_init(void)
5b435de0	692	{
3392c888 FL	693	int ret;
3392c888 FL	694
5b435de0 AS	695	brcmf_dbg(TRACE, "Enter\n");
5b435de0 AS	696
3392c888 FL	697	ret = sdio_register_driver(&brcmf_sdmmc_driver);
	698
	699	if (ret)
	700	brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
5b435de0	701	}
ba89bf19	702	#endif /* CONFIG_BRCMFMAC_SDIO_OOB */