[linux-2.6-block.git] / drivers / net / wireless / ti / wlcore / sdio.c

/*
 * This file is part of wl1271
 *
 * Copyright (C) 2009-2010 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/irq.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/platform_device.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/gpio.h>
#include <linux/wl12xx.h>
#include <linux/pm_runtime.h>
#include <linux/printk.h>

#include "wlcore.h"
#include "wl12xx_80211.h"
#include "io.h"

#ifndef SDIO_VENDOR_ID_TI
#define SDIO_VENDOR_ID_TI		0x0097
#endif

#ifndef SDIO_DEVICE_ID_TI_WL1271
#define SDIO_DEVICE_ID_TI_WL1271	0x4076
#endif

static bool dump = false;

struct wl12xx_sdio_glue {
	struct device *dev;
	struct platform_device *core;
};

static const struct sdio_device_id wl1271_devices[] = {
	{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
	{}
};
MODULE_DEVICE_TABLE(sdio, wl1271_devices);

static void wl1271_sdio_set_block_size(struct device *child,
				       unsigned int blksz)
{
	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
	struct sdio_func *func = dev_to_sdio_func(glue->dev);

	sdio_claim_host(func);
	sdio_set_block_size(func, blksz);
	sdio_release_host(func);
}

static int __must_check wl12xx_sdio_raw_read(struct device *child, int addr,
					     void *buf, size_t len, bool fixed)
{
	int ret;
	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
	struct sdio_func *func = dev_to_sdio_func(glue->dev);

	sdio_claim_host(func);

	if (unlikely(dump)) {
		printk(KERN_DEBUG "wlcore_sdio: READ from 0x%04x\n", addr);
		print_hex_dump(KERN_DEBUG, "wlcore_sdio: READ ",
				DUMP_PREFIX_OFFSET, 16, 1,
				buf, len, false);
	}

	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
		((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
		dev_dbg(child->parent, "sdio read 52 addr 0x%x, byte 0x%02x\n",
			addr, ((u8 *)buf)[0]);
	} else {
		if (fixed)
			ret = sdio_readsb(func, buf, addr, len);
		else
			ret = sdio_memcpy_fromio(func, buf, addr, len);

		dev_dbg(child->parent, "sdio read 53 addr 0x%x, %zu bytes\n",
			addr, len);
	}

	sdio_release_host(func);

	if (WARN_ON(ret))
		dev_err(child->parent, "sdio read failed (%d)\n", ret);

	return ret;
}

static int __must_check wl12xx_sdio_raw_write(struct device *child, int addr,
					      void *buf, size_t len, bool fixed)
{
	int ret;
	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
	struct sdio_func *func = dev_to_sdio_func(glue->dev);

	sdio_claim_host(func);

	if (unlikely(dump)) {
		printk(KERN_DEBUG "wlcore_sdio: WRITE to 0x%04x\n", addr);
		print_hex_dump(KERN_DEBUG, "wlcore_sdio: WRITE ",
				DUMP_PREFIX_OFFSET, 16, 1,
				buf, len, false);
	}

	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
		sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
		dev_dbg(child->parent, "sdio write 52 addr 0x%x, byte 0x%02x\n",
			addr, ((u8 *)buf)[0]);
	} else {
		dev_dbg(child->parent, "sdio write 53 addr 0x%x, %zu bytes\n",
			addr, len);

		if (fixed)
			ret = sdio_writesb(func, addr, buf, len);
		else
			ret = sdio_memcpy_toio(func, addr, buf, len);
	}

	sdio_release_host(func);

	if (WARN_ON(ret))
		dev_err(child->parent, "sdio write failed (%d)\n", ret);

	return ret;
}

static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue)
{
	int ret;
	struct sdio_func *func = dev_to_sdio_func(glue->dev);
	struct mmc_card *card = func->card;

	ret = pm_runtime_get_sync(&card->dev);
	if (ret) {
		/*
		 * Runtime PM might be temporarily disabled, or the device
		 * might have a positive reference counter. Make sure it is
		 * really powered on.
		 */
		ret = mmc_power_restore_host(card->host);
		if (ret < 0) {
			pm_runtime_put_sync(&card->dev);
			goto out;
		}
	}

	sdio_claim_host(func);
	sdio_enable_func(func);
	sdio_release_host(func);

out:
	return ret;
}

static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
{
	int ret;
	struct sdio_func *func = dev_to_sdio_func(glue->dev);
	struct mmc_card *card = func->card;

	sdio_claim_host(func);
	sdio_disable_func(func);
	sdio_release_host(func);

	/* Power off the card manually in case it wasn't powered off above */
	ret = mmc_power_save_host(card->host);
	if (ret < 0)
		goto out;

	/* Let runtime PM know the card is powered off */
	pm_runtime_put_sync(&card->dev);

out:
	return ret;
}

static int wl12xx_sdio_set_power(struct device *child, bool enable)
{
	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);

	if (enable)
		return wl12xx_sdio_power_on(glue);
	else
		return wl12xx_sdio_power_off(glue);
}

static struct wl1271_if_operations sdio_ops = {
	.read		= wl12xx_sdio_raw_read,
	.write		= wl12xx_sdio_raw_write,
	.power		= wl12xx_sdio_set_power,
	.set_block_size = wl1271_sdio_set_block_size,
};

static int wl1271_probe(struct sdio_func *func,
				  const struct sdio_device_id *id)
{
	struct wlcore_platdev_data pdev_data;
	struct wl12xx_sdio_glue *glue;
	struct resource res[1];
	mmc_pm_flag_t mmcflags;
	int ret = -ENOMEM;
	const char *chip_family;

	/* We are only able to handle the wlan function */
	if (func->num != 0x02)
		return -ENODEV;

	memset(&pdev_data, 0x00, sizeof(pdev_data));
	pdev_data.if_ops = &sdio_ops;

	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
	if (!glue) {
		dev_err(&func->dev, "can't allocate glue\n");
		goto out;
	}

	glue->dev = &func->dev;

	/* Grab access to FN0 for ELP reg. */
	func->card->quirks |= MMC_QUIRK_LENIENT_FN0;

	/* Use block mode for transferring over one block size of data */
	func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;

	pdev_data.pdata = wl12xx_get_platform_data();
	if (IS_ERR(pdev_data.pdata)) {
		ret = PTR_ERR(pdev_data.pdata);
		dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
		goto out_free_glue;
	}

	/* if sdio can keep power while host is suspended, enable wow */
	mmcflags = sdio_get_host_pm_caps(func);
	dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);

	if (mmcflags & MMC_PM_KEEP_POWER)
		pdev_data.pdata->pwr_in_suspend = true;

	sdio_set_drvdata(func, glue);

	/* Tell PM core that we don't need the card to be powered now */
	pm_runtime_put_noidle(&func->dev);

	/*
	 * Due to a hardware bug, we can't differentiate wl18xx from
	 * wl12xx, because both report the same device ID.  The only
	 * way to differentiate is by checking the SDIO revision,
	 * which is 3.00 on the wl18xx chips.
	 */
	if (func->card->cccr.sdio_vsn == SDIO_SDIO_REV_3_00)
		chip_family = "wl18xx";
	else
		chip_family = "wl12xx";

	glue->core = platform_device_alloc(chip_family, PLATFORM_DEVID_AUTO);
	if (!glue->core) {
		dev_err(glue->dev, "can't allocate platform_device");
		ret = -ENOMEM;
		goto out_free_glue;
	}

	glue->core->dev.parent = &func->dev;

	memset(res, 0x00, sizeof(res));

	res[0].start = pdev_data.pdata->irq;
	res[0].flags = IORESOURCE_IRQ;
	res[0].name = "irq";

	ret = platform_device_add_resources(glue->core, res, ARRAY_SIZE(res));
	if (ret) {
		dev_err(glue->dev, "can't add resources\n");
		goto out_dev_put;
	}

	ret = platform_device_add_data(glue->core, &pdev_data,
				       sizeof(pdev_data));
	if (ret) {
		dev_err(glue->dev, "can't add platform data\n");
		goto out_dev_put;
	}

	ret = platform_device_add(glue->core);
	if (ret) {
		dev_err(glue->dev, "can't add platform device\n");
		goto out_dev_put;
	}
	return 0;

out_dev_put:
	platform_device_put(glue->core);

out_free_glue:
	kfree(glue);

out:
	return ret;
}

static void wl1271_remove(struct sdio_func *func)
{
	struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);

	/* Undo decrement done above in wl1271_probe */
	pm_runtime_get_noresume(&func->dev);

	platform_device_unregister(glue->core);
	kfree(glue);
}

#ifdef CONFIG_PM
static int wl1271_suspend(struct device *dev)
{
	/* Tell MMC/SDIO core it's OK to power down the card
	 * (if it isn't already), but not to remove it completely */
	struct sdio_func *func = dev_to_sdio_func(dev);
	struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);
	struct wl1271 *wl = platform_get_drvdata(glue->core);
	mmc_pm_flag_t sdio_flags;
	int ret = 0;

	dev_dbg(dev, "wl1271 suspend. wow_enabled: %d\n",
		wl->wow_enabled);

	/* check whether sdio should keep power */
	if (wl->wow_enabled) {
		sdio_flags = sdio_get_host_pm_caps(func);

		if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
			dev_err(dev, "can't keep power while host "
				     "is suspended\n");
			ret = -EINVAL;
			goto out;
		}

		/* keep power while host suspended */
		ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
		if (ret) {
			dev_err(dev, "error while trying to keep power\n");
			goto out;
		}
	}
out:
	return ret;
}

static int wl1271_resume(struct device *dev)
{
	dev_dbg(dev, "wl1271 resume\n");

	return 0;
}

static const struct dev_pm_ops wl1271_sdio_pm_ops = {
	.suspend	= wl1271_suspend,
	.resume		= wl1271_resume,
};
#endif

static struct sdio_driver wl1271_sdio_driver = {
	.name		= "wl1271_sdio",
	.id_table	= wl1271_devices,
	.probe		= wl1271_probe,
	.remove		= wl1271_remove,
#ifdef CONFIG_PM
	.drv = {
		.pm = &wl1271_sdio_pm_ops,
	},
#endif
};

static int __init wl1271_init(void)
{
	return sdio_register_driver(&wl1271_sdio_driver);
}

static void __exit wl1271_exit(void)
{
	sdio_unregister_driver(&wl1271_sdio_driver);
}

module_init(wl1271_init);
module_exit(wl1271_exit);

module_param(dump, bool, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(dump, "Enable sdio read/write dumps.");

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
Commit	Line	Data
5129dffe TP	1	/*
	2	* This file is part of wl1271
	3	*
	4	* Copyright (C) 2009-2010 Nokia Corporation
	5	*
	6	* Contact: Luciano Coelho <luciano.coelho@nokia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	20	* 02110-1301 USA
	21	*
	22	*/
	23
	24	#include <linux/irq.h>
	25	#include <linux/module.h>
5129dffe	26	#include <linux/vmalloc.h>
025aef8f	27	#include <linux/platform_device.h>
197c6283	28	#include <linux/mmc/sdio.h>
5129dffe TP	29	#include <linux/mmc/sdio_func.h>
	30	#include <linux/mmc/sdio_ids.h>
	31	#include <linux/mmc/card.h>
11251e7e	32	#include <linux/mmc/host.h>
19b87173	33	#include <linux/gpio.h>
09cecc34	34	#include <linux/wl12xx.h>
00cbb3c5	35	#include <linux/pm_runtime.h>
df472894	36	#include <linux/printk.h>
5129dffe	37
c31be25a	38	#include "wlcore.h"
5129dffe	39	#include "wl12xx_80211.h"
00d20100	40	#include "io.h"
5129dffe	41
5129dffe TP	42	#ifndef SDIO_VENDOR_ID_TI
	43	#define SDIO_VENDOR_ID_TI 0x0097
	44	#endif
	45
	46	#ifndef SDIO_DEVICE_ID_TI_WL1271
	47	#define SDIO_DEVICE_ID_TI_WL1271 0x4076
	48	#endif
	49
df472894 LC	50	static bool dump = false;
df472894 LC	51
fbe936bc FB	52	struct wl12xx_sdio_glue {
fbe936bc FB	53	struct device *dev;
025aef8f	54	struct platform_device *core;
fbe936bc FB	55	};
fbe936bc FB	56
b74324d1	57	static const struct sdio_device_id wl1271_devices[] = {
5129dffe TP	58	{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
	59	{}
	60	};
	61	MODULE_DEVICE_TABLE(sdio, wl1271_devices);
	62
a390e85c FB	63	static void wl1271_sdio_set_block_size(struct device *child,
a390e85c FB	64	unsigned int blksz)
a81159ed	65	{
a390e85c FB	66	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
a390e85c FB	67	struct sdio_func *func = dev_to_sdio_func(glue->dev);
5129dffe	68
a390e85c FB	69	sdio_claim_host(func);
	70	sdio_set_block_size(func, blksz);
	71	sdio_release_host(func);
5129dffe TP	72	}
5129dffe TP	73
f1a26e63 IY	74	static int __must_check wl12xx_sdio_raw_read(struct device *child, int addr,
f1a26e63 IY	75	void *buf, size_t len, bool fixed)
5129dffe TP	76	{
5129dffe TP	77	int ret;
a390e85c	78	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
fbe936bc	79	struct sdio_func *func = dev_to_sdio_func(glue->dev);
5129dffe	80
b4748306 EP	81	sdio_claim_host(func);
b4748306 EP	82
df472894 LC	83	if (unlikely(dump)) {
	84	printk(KERN_DEBUG "wlcore_sdio: READ from 0x%04x\n", addr);
	85	print_hex_dump(KERN_DEBUG, "wlcore_sdio: READ ",
	86	DUMP_PREFIX_OFFSET, 16, 1,
	87	buf, len, false);
	88	}
	89
00782136	90	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
5129dffe	91	((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
3c4d3868 LC	92	dev_dbg(child->parent, "sdio read 52 addr 0x%x, byte 0x%02x\n",
3c4d3868 LC	93	addr, ((u8 *)buf)[0]);
5129dffe TP	94	} else {
	95	if (fixed)
	96	ret = sdio_readsb(func, buf, addr, len);
	97	else
	98	ret = sdio_memcpy_fromio(func, buf, addr, len);
	99
3c4d3868 LC	100	dev_dbg(child->parent, "sdio read 53 addr 0x%x, %zu bytes\n",
3c4d3868 LC	101	addr, len);
5129dffe TP	102	}
5129dffe TP	103
b4748306 EP	104	sdio_release_host(func);
b4748306 EP	105
02eb1d9d	106	if (WARN_ON(ret))
3c4d3868	107	dev_err(child->parent, "sdio read failed (%d)\n", ret);
02eb1d9d IY	108
02eb1d9d IY	109	return ret;
5129dffe TP	110	}
5129dffe TP	111
f1a26e63 IY	112	static int __must_check wl12xx_sdio_raw_write(struct device *child, int addr,
f1a26e63 IY	113	void *buf, size_t len, bool fixed)
5129dffe TP	114	{
5129dffe TP	115	int ret;
a390e85c	116	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
fbe936bc	117	struct sdio_func *func = dev_to_sdio_func(glue->dev);
5129dffe	118
b4748306 EP	119	sdio_claim_host(func);
b4748306 EP	120
df472894 LC	121	if (unlikely(dump)) {
	122	printk(KERN_DEBUG "wlcore_sdio: WRITE to 0x%04x\n", addr);
	123	print_hex_dump(KERN_DEBUG, "wlcore_sdio: WRITE ",
	124	DUMP_PREFIX_OFFSET, 16, 1,
	125	buf, len, false);
	126	}
	127
00782136	128	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG)) {
5129dffe	129	sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
3c4d3868 LC	130	dev_dbg(child->parent, "sdio write 52 addr 0x%x, byte 0x%02x\n",
3c4d3868 LC	131	addr, ((u8 *)buf)[0]);
5129dffe	132	} else {
3c4d3868 LC	133	dev_dbg(child->parent, "sdio write 53 addr 0x%x, %zu bytes\n",
3c4d3868 LC	134	addr, len);
5129dffe TP	135
	136	if (fixed)
	137	ret = sdio_writesb(func, addr, buf, len);
	138	else
	139	ret = sdio_memcpy_toio(func, addr, buf, len);
	140	}
49063a0d	141
b4748306 EP	142	sdio_release_host(func);
b4748306 EP	143
02eb1d9d	144	if (WARN_ON(ret))
3c4d3868	145	dev_err(child->parent, "sdio write failed (%d)\n", ret);
02eb1d9d IY	146
02eb1d9d IY	147	return ret;
49063a0d OBC	148	}
49063a0d OBC	149
a390e85c	150	static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue)
49063a0d	151	{
00cbb3c5	152	int ret;
fbe936bc	153	struct sdio_func *func = dev_to_sdio_func(glue->dev);
645865fc IY	154	struct mmc_card *card = func->card;
	155
	156	ret = pm_runtime_get_sync(&card->dev);
	157	if (ret) {
	158	/*
	159	* Runtime PM might be temporarily disabled, or the device
	160	* might have a positive reference counter. Make sure it is
	161	* really powered on.
	162	*/
	163	ret = mmc_power_restore_host(card->host);
	164	if (ret < 0) {
	165	pm_runtime_put_sync(&card->dev);
b5d6e5f6	166	goto out;
645865fc	167	}
86046da4	168	}
5129dffe	169
49063a0d OBC	170	sdio_claim_host(func);
49063a0d OBC	171	sdio_enable_func(func);
b4748306	172	sdio_release_host(func);
2cc78ff7	173
00cbb3c5 OBC	174	out:
00cbb3c5 OBC	175	return ret;
49063a0d OBC	176	}
49063a0d OBC	177
a390e85c	178	static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
49063a0d	179	{
11251e7e	180	int ret;
fbe936bc	181	struct sdio_func *func = dev_to_sdio_func(glue->dev);
645865fc	182	struct mmc_card *card = func->card;
49063a0d	183
b4748306	184	sdio_claim_host(func);
49063a0d OBC	185	sdio_disable_func(func);
49063a0d OBC	186	sdio_release_host(func);
2cc78ff7	187
645865fc IY	188	/* Power off the card manually in case it wasn't powered off above */
645865fc IY	189	ret = mmc_power_save_host(card->host);
11251e7e	190	if (ret < 0)
645865fc	191	goto out;
11251e7e	192
645865fc IY	193	/* Let runtime PM know the card is powered off */
645865fc IY	194	pm_runtime_put_sync(&card->dev);
86046da4	195
645865fc	196	out:
86046da4	197	return ret;
5129dffe TP	198	}
5129dffe TP	199
a390e85c	200	static int wl12xx_sdio_set_power(struct device *child, bool enable)
becd551c	201	{
a390e85c FB	202	struct wl12xx_sdio_glue *glue = dev_get_drvdata(child->parent);
a390e85c FB	203
49063a0d	204	if (enable)
a390e85c	205	return wl12xx_sdio_power_on(glue);
49063a0d	206	else
a390e85c	207	return wl12xx_sdio_power_off(glue);
becd551c TP	208	}
becd551c TP	209
5129dffe	210	static struct wl1271_if_operations sdio_ops = {
a390e85c FB	211	.read = wl12xx_sdio_raw_read,
	212	.write = wl12xx_sdio_raw_write,
	213	.power = wl12xx_sdio_set_power,
a81159ed	214	.set_block_size = wl1271_sdio_set_block_size,
5129dffe TP	215	};
5129dffe TP	216
b74324d1	217	static int wl1271_probe(struct sdio_func *func,
5129dffe TP	218	const struct sdio_device_id *id)
5129dffe TP	219	{
4c104162	220	struct wlcore_platdev_data pdev_data;
fbe936bc	221	struct wl12xx_sdio_glue *glue;
025aef8f	222	struct resource res[1];
f795ea8b	223	mmc_pm_flag_t mmcflags;
fbe936bc	224	int ret = -ENOMEM;
197c6283	225	const char *chip_family;
5129dffe TP	226
	227	/* We are only able to handle the wlan function */
	228	if (func->num != 0x02)
	229	return -ENODEV;
	230
4c104162 CE	231	memset(&pdev_data, 0x00, sizeof(pdev_data));
4c104162 CE	232	pdev_data.if_ops = &sdio_ops;
afb43e6d	233
fbe936bc FB	234	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
fbe936bc FB	235	if (!glue) {
3c4d3868	236	dev_err(&func->dev, "can't allocate glue\n");
4c104162	237	goto out;
fbe936bc FB	238	}
fbe936bc FB	239
fbe936bc	240	glue->dev = &func->dev;
5129dffe	241
5129dffe TP	242	/* Grab access to FN0 for ELP reg. */
	243	func->card->quirks \|= MMC_QUIRK_LENIENT_FN0;
	244
1d732e8c AN	245	/* Use block mode for transferring over one block size of data */
	246	func->card->quirks \|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
	247
4c104162 CE	248	pdev_data.pdata = wl12xx_get_platform_data();
	249	if (IS_ERR(pdev_data.pdata)) {
	250	ret = PTR_ERR(pdev_data.pdata);
3c4d3868	251	dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
a390e85c	252	goto out_free_glue;
5129dffe TP	253	}
5129dffe TP	254
a390e85c FB	255	/* if sdio can keep power while host is suspended, enable wow */
a390e85c FB	256	mmcflags = sdio_get_host_pm_caps(func);
3c4d3868	257	dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);
2c0f2463	258
a390e85c	259	if (mmcflags & MMC_PM_KEEP_POWER)
4c104162	260	pdev_data.pdata->pwr_in_suspend = true;
f795ea8b	261
fbe936bc	262	sdio_set_drvdata(func, glue);
49d7f6d8	263
00cbb3c5 OBC	264	/* Tell PM core that we don't need the card to be powered now */
	265	pm_runtime_put_noidle(&func->dev);
	266
197c6283 LC	267	/*
	268	* Due to a hardware bug, we can't differentiate wl18xx from
	269	* wl12xx, because both report the same device ID. The only
	270	* way to differentiate is by checking the SDIO revision,
	271	* which is 3.00 on the wl18xx chips.
	272	*/
	273	if (func->card->cccr.sdio_vsn == SDIO_SDIO_REV_3_00)
	274	chip_family = "wl18xx";
	275	else
	276	chip_family = "wl12xx";
	277
06ab4058	278	glue->core = platform_device_alloc(chip_family, PLATFORM_DEVID_AUTO);
025aef8f	279	if (!glue->core) {
3c4d3868	280	dev_err(glue->dev, "can't allocate platform_device");
025aef8f	281	ret = -ENOMEM;
a390e85c	282	goto out_free_glue;
025aef8f FB	283	}
	284
	285	glue->core->dev.parent = &func->dev;
	286
	287	memset(res, 0x00, sizeof(res));
	288
4c104162	289	res[0].start = pdev_data.pdata->irq;
025aef8f FB	290	res[0].flags = IORESOURCE_IRQ;
	291	res[0].name = "irq";
	292
	293	ret = platform_device_add_resources(glue->core, res, ARRAY_SIZE(res));
	294	if (ret) {
3c4d3868	295	dev_err(glue->dev, "can't add resources\n");
025aef8f FB	296	goto out_dev_put;
	297	}
	298
4c104162 CE	299	ret = platform_device_add_data(glue->core, &pdev_data,
4c104162 CE	300	sizeof(pdev_data));
025aef8f	301	if (ret) {
3c4d3868	302	dev_err(glue->dev, "can't add platform data\n");
025aef8f FB	303	goto out_dev_put;
	304	}
	305
	306	ret = platform_device_add(glue->core);
	307	if (ret) {
3c4d3868	308	dev_err(glue->dev, "can't add platform device\n");
025aef8f FB	309	goto out_dev_put;
025aef8f FB	310	}
5129dffe TP	311	return 0;
5129dffe TP	312
025aef8f FB	313	out_dev_put:
	314	platform_device_put(glue->core);
	315
fbe936bc FB	316	out_free_glue:
fbe936bc FB	317	kfree(glue);
a390e85c	318
fbe936bc	319	out:
5129dffe TP	320	return ret;
	321	}
	322
b74324d1	323	static void wl1271_remove(struct sdio_func *func)
5129dffe	324	{
fbe936bc	325	struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);
5129dffe	326
00cbb3c5 OBC	327	/* Undo decrement done above in wl1271_probe */
	328	pm_runtime_get_noresume(&func->dev);
	329
200e9326	330	platform_device_unregister(glue->core);
fbe936bc	331	kfree(glue);
5129dffe TP	332	}
5129dffe TP	333
f634a4e7	334	#ifdef CONFIG_PM
674f3058 OBC	335	static int wl1271_suspend(struct device *dev)
	336	{
	337	/* Tell MMC/SDIO core it's OK to power down the card
	338	* (if it isn't already), but not to remove it completely */
039bdb14	339	struct sdio_func *func = dev_to_sdio_func(dev);
b6932894 ES	340	struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);
b6932894 ES	341	struct wl1271 *wl = platform_get_drvdata(glue->core);
039bdb14 EP	342	mmc_pm_flag_t sdio_flags;
	343	int ret = 0;
	344
3c4d3868 LC	345	dev_dbg(dev, "wl1271 suspend. wow_enabled: %d\n",
3c4d3868 LC	346	wl->wow_enabled);
039bdb14 EP	347
	348	/* check whether sdio should keep power */
	349	if (wl->wow_enabled) {
	350	sdio_flags = sdio_get_host_pm_caps(func);
	351
	352	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
3c4d3868 LC	353	dev_err(dev, "can't keep power while host "
3c4d3868 LC	354	"is suspended\n");
039bdb14 EP	355	ret = -EINVAL;
	356	goto out;
	357	}
	358
	359	/* keep power while host suspended */
	360	ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
	361	if (ret) {
3c4d3868	362	dev_err(dev, "error while trying to keep power\n");
039bdb14 EP	363	goto out;
	364	}
	365	}
	366	out:
	367	return ret;
674f3058 OBC	368	}
	369
	370	static int wl1271_resume(struct device *dev)
	371	{
3c4d3868	372	dev_dbg(dev, "wl1271 resume\n");
f44e5868	373
674f3058 OBC	374	return 0;
	375	}
	376
	377	static const struct dev_pm_ops wl1271_sdio_pm_ops = {
	378	.suspend = wl1271_suspend,
	379	.resume = wl1271_resume,
	380	};
f634a4e7	381	#endif
674f3058	382
5129dffe	383	static struct sdio_driver wl1271_sdio_driver = {
f4b5d8d8	384	.name = "wl1271_sdio",
5129dffe TP	385	.id_table = wl1271_devices,
5129dffe TP	386	.probe = wl1271_probe,
b74324d1	387	.remove = wl1271_remove,
f634a4e7	388	#ifdef CONFIG_PM
674f3058 OBC	389	.drv = {
	390	.pm = &wl1271_sdio_pm_ops,
	391	},
f634a4e7	392	#endif
5129dffe TP	393	};
	394
	395	static int __init wl1271_init(void)
	396	{
6bdaf796	397	return sdio_register_driver(&wl1271_sdio_driver);
5129dffe TP	398	}
	399
	400	static void __exit wl1271_exit(void)
	401	{
	402	sdio_unregister_driver(&wl1271_sdio_driver);
5129dffe TP	403	}
	404
	405	module_init(wl1271_init);
	406	module_exit(wl1271_exit);
	407
df472894 LC	408	module_param(dump, bool, S_IRUSR \| S_IWUSR);
	409	MODULE_PARM_DESC(dump, "Enable sdio read/write dumps.");
	410
5129dffe	411	MODULE_LICENSE("GPL");
5245e3a9	412	MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
5129dffe	413	MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");