[deliverable/linux.git] / drivers / net / wireless / wl12xx / 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/crc7.h>
#include <linux/vmalloc.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 "wl12xx.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 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 wl1271 *wl, unsigned int blksz)
{
	sdio_claim_host(wl->if_priv);
	sdio_set_block_size(wl->if_priv, blksz);
	sdio_release_host(wl->if_priv);
}

static inline struct sdio_func *wl_to_func(struct wl1271 *wl)
{
	return wl->if_priv;
}

static struct device *wl1271_sdio_wl_to_dev(struct wl1271 *wl)
{
	return &(wl_to_func(wl)->dev);
}

static irqreturn_t wl1271_hardirq(int irq, void *cookie)
{
	struct wl1271 *wl = cookie;
	unsigned long flags;

	wl1271_debug(DEBUG_IRQ, "IRQ");

	/* complete the ELP completion */
	spin_lock_irqsave(&wl->wl_lock, flags);
	set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
	if (wl->elp_compl) {
		complete(wl->elp_compl);
		wl->elp_compl = NULL;
	}

	if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
		/* don't enqueue a work right now. mark it as pending */
		set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
		wl1271_debug(DEBUG_IRQ, "should not enqueue work");
		disable_irq_nosync(wl->irq);
		pm_wakeup_event(wl1271_sdio_wl_to_dev(wl), 0);
		spin_unlock_irqrestore(&wl->wl_lock, flags);
		return IRQ_HANDLED;
	}
	spin_unlock_irqrestore(&wl->wl_lock, flags);

	return IRQ_WAKE_THREAD;
}

static void wl1271_sdio_disable_interrupts(struct wl1271 *wl)
{
	disable_irq(wl->irq);
}

static void wl1271_sdio_enable_interrupts(struct wl1271 *wl)
{
	enable_irq(wl->irq);
}

static void wl1271_sdio_reset(struct wl1271 *wl)
{
}

static void wl1271_sdio_init(struct wl1271 *wl)
{
}

static void wl1271_sdio_raw_read(struct wl1271 *wl, int addr, void *buf,
				 size_t len, bool fixed)
{
	int ret;
	struct sdio_func *func = wl_to_func(wl);

	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
		((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
		wl1271_debug(DEBUG_SDIO, "sdio read 52 addr 0x%x, byte 0x%02x",
			     addr, ((u8 *)buf)[0]);
	} else {
		if (fixed)
			ret = sdio_readsb(func, buf, addr, len);
		else
			ret = sdio_memcpy_fromio(func, buf, addr, len);

		wl1271_debug(DEBUG_SDIO, "sdio read 53 addr 0x%x, %zu bytes",
			     addr, len);
		wl1271_dump_ascii(DEBUG_SDIO, "data: ", buf, len);
	}

	if (ret)
		wl1271_error("sdio read failed (%d)", ret);
}

static void wl1271_sdio_raw_write(struct wl1271 *wl, int addr, void *buf,
				  size_t len, bool fixed)
{
	int ret;
	struct sdio_func *func = wl_to_func(wl);

	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
		sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
		wl1271_debug(DEBUG_SDIO, "sdio write 52 addr 0x%x, byte 0x%02x",
			     addr, ((u8 *)buf)[0]);
	} else {
		wl1271_debug(DEBUG_SDIO, "sdio write 53 addr 0x%x, %zu bytes",
			     addr, len);
		wl1271_dump_ascii(DEBUG_SDIO, "data: ", buf, len);

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

	if (ret)
		wl1271_error("sdio write failed (%d)", ret);
}

static int wl1271_sdio_power_on(struct wl1271 *wl)
{
	struct sdio_func *func = wl_to_func(wl);
	int ret;

	/* Make sure the card will not be powered off by runtime PM */
	ret = pm_runtime_get_sync(&func->dev);
	if (ret < 0)
		goto out;

	/* Runtime PM might be disabled, so power up the card manually */
	ret = mmc_power_restore_host(func->card->host);
	if (ret < 0)
		goto out;

	sdio_claim_host(func);
	sdio_enable_func(func);

out:
	return ret;
}

static int wl1271_sdio_power_off(struct wl1271 *wl)
{
	struct sdio_func *func = wl_to_func(wl);
	int ret;

	sdio_disable_func(func);
	sdio_release_host(func);

	/* Runtime PM might be disabled, so power off the card manually */
	ret = mmc_power_save_host(func->card->host);
	if (ret < 0)
		return ret;

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

static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
{
	if (enable)
		return wl1271_sdio_power_on(wl);
	else
		return wl1271_sdio_power_off(wl);
}

static struct wl1271_if_operations sdio_ops = {
	.read		= wl1271_sdio_raw_read,
	.write		= wl1271_sdio_raw_write,
	.reset		= wl1271_sdio_reset,
	.init		= wl1271_sdio_init,
	.power		= wl1271_sdio_set_power,
	.dev		= wl1271_sdio_wl_to_dev,
	.enable_irq	= wl1271_sdio_enable_interrupts,
	.disable_irq	= wl1271_sdio_disable_interrupts,
	.set_block_size = wl1271_sdio_set_block_size,
};

static int __devinit wl1271_probe(struct sdio_func *func,
				  const struct sdio_device_id *id)
{
	struct ieee80211_hw *hw;
	const struct wl12xx_platform_data *wlan_data;
	struct wl1271 *wl;
	unsigned long irqflags;
	int ret;

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

	hw = wl1271_alloc_hw();
	if (IS_ERR(hw))
		return PTR_ERR(hw);

	wl = hw->priv;

	wl->if_priv = func;
	wl->if_ops = &sdio_ops;

	/* 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;

	wlan_data = wl12xx_get_platform_data();
	if (IS_ERR(wlan_data)) {
		ret = PTR_ERR(wlan_data);
		wl1271_error("missing wlan platform data: %d", ret);
		goto out_free;
	}

	wl->irq = wlan_data->irq;
	wl->ref_clock = wlan_data->board_ref_clock;
	wl->tcxo_clock = wlan_data->board_tcxo_clock;
	wl->platform_quirks = wlan_data->platform_quirks;

	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
		irqflags = IRQF_TRIGGER_RISING;
	else
		irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;

	ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq,
				   irqflags,
				   DRIVER_NAME, wl);
	if (ret < 0) {
		wl1271_error("request_irq() failed: %d", ret);
		goto out_free;
	}

	enable_irq_wake(wl->irq);
	device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);

	disable_irq(wl->irq);

	ret = wl1271_init_ieee80211(wl);
	if (ret)
		goto out_irq;

	ret = wl1271_register_hw(wl);
	if (ret)
		goto out_irq;

	sdio_set_drvdata(func, wl);

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

	wl1271_notice("initialized");

	return 0;

 out_irq:
	free_irq(wl->irq, wl);

 out_free:
	wl1271_free_hw(wl);

	return ret;
}

static void __devexit wl1271_remove(struct sdio_func *func)
{
	struct wl1271 *wl = sdio_get_drvdata(func);

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

	wl1271_unregister_hw(wl);
	device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
	disable_irq_wake(wl->irq);
	free_irq(wl->irq, wl);
	wl1271_free_hw(wl);
}

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 wl1271 *wl = sdio_get_drvdata(func);
	mmc_pm_flag_t sdio_flags;
	int ret = 0;

	wl1271_debug(DEBUG_MAC80211, "wl1271 suspend. wow_enabled: %d",
		     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)) {
			wl1271_error("can't keep power while host "
				     "is suspended");
			ret = -EINVAL;
			goto out;
		}

		/* keep power while host suspended */
		ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
		if (ret) {
			wl1271_error("error while trying to keep power");
			goto out;
		}

		/* release host */
		sdio_release_host(func);
	}
out:
	return ret;
}

static int wl1271_resume(struct device *dev)
{
	struct sdio_func *func = dev_to_sdio_func(dev);
	struct wl1271 *wl = sdio_get_drvdata(func);

	wl1271_debug(DEBUG_MAC80211, "wl1271 resume");
	if (wl->wow_enabled) {
		/* claim back host */
		sdio_claim_host(func);
	}

	return 0;
}

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

static struct sdio_driver wl1271_sdio_driver = {
	.name		= "wl1271_sdio",
	.id_table	= wl1271_devices,
	.probe		= wl1271_probe,
	.remove		= __devexit_p(wl1271_remove),
	.drv = {
		.pm = &wl1271_sdio_pm_ops,
	},
};

static int __init wl1271_init(void)
{
	int ret;

	ret = sdio_register_driver(&wl1271_sdio_driver);
	if (ret < 0) {
		wl1271_error("failed to register sdio driver: %d", ret);
		goto out;
	}

out:
	return ret;
}

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

	wl1271_notice("unloaded");
}

module_init(wl1271_init);
module_exit(wl1271_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
MODULE_FIRMWARE(WL1271_FW_NAME);
MODULE_FIRMWARE(WL128X_FW_NAME);
MODULE_FIRMWARE(WL127X_AP_FW_NAME);
MODULE_FIRMWARE(WL128X_AP_FW_NAME);
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>
	26	#include <linux/crc7.h>
	27	#include <linux/vmalloc.h>
	28	#include <linux/mmc/sdio_func.h>
	29	#include <linux/mmc/sdio_ids.h>
	30	#include <linux/mmc/card.h>
11251e7e	31	#include <linux/mmc/host.h>
19b87173	32	#include <linux/gpio.h>
09cecc34	33	#include <linux/wl12xx.h>
00cbb3c5	34	#include <linux/pm_runtime.h>
5129dffe	35
00d20100	36	#include "wl12xx.h"
5129dffe	37	#include "wl12xx_80211.h"
00d20100	38	#include "io.h"
5129dffe	39
5129dffe TP	40	#ifndef SDIO_VENDOR_ID_TI
	41	#define SDIO_VENDOR_ID_TI 0x0097
	42	#endif
	43
	44	#ifndef SDIO_DEVICE_ID_TI_WL1271
	45	#define SDIO_DEVICE_ID_TI_WL1271 0x4076
	46	#endif
	47
	48	static const struct sdio_device_id wl1271_devices[] = {
	49	{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
	50	{}
	51	};
	52	MODULE_DEVICE_TABLE(sdio, wl1271_devices);
	53
0da13da7	54	static void wl1271_sdio_set_block_size(struct wl1271 *wl, unsigned int blksz)
a81159ed	55	{
a81159ed	56	sdio_claim_host(wl->if_priv);
0da13da7	57	sdio_set_block_size(wl->if_priv, blksz);
a81159ed LC	58	sdio_release_host(wl->if_priv);
	59	}
	60
5129dffe TP	61	static inline struct sdio_func wl_to_func(struct wl1271 wl)
	62	{
	63	return wl->if_priv;
	64	}
	65
	66	static struct device wl1271_sdio_wl_to_dev(struct wl1271 wl)
	67	{
	68	return &(wl_to_func(wl)->dev);
	69	}
	70
a620865e	71	static irqreturn_t wl1271_hardirq(int irq, void *cookie)
5129dffe TP	72	{
	73	struct wl1271 *wl = cookie;
	74	unsigned long flags;
	75
	76	wl1271_debug(DEBUG_IRQ, "IRQ");
	77
	78	/* complete the ELP completion */
	79	spin_lock_irqsave(&wl->wl_lock, flags);
a620865e	80	set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
5129dffe TP	81	if (wl->elp_compl) {
	82	complete(wl->elp_compl);
	83	wl->elp_compl = NULL;
	84	}
f44e5868 EP	85
	86	if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
	87	/* don't enqueue a work right now. mark it as pending */
	88	set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
	89	wl1271_debug(DEBUG_IRQ, "should not enqueue work");
	90	disable_irq_nosync(wl->irq);
	91	pm_wakeup_event(wl1271_sdio_wl_to_dev(wl), 0);
	92	spin_unlock_irqrestore(&wl->wl_lock, flags);
	93	return IRQ_HANDLED;
	94	}
5129dffe TP	95	spin_unlock_irqrestore(&wl->wl_lock, flags);
5129dffe TP	96
a620865e	97	return IRQ_WAKE_THREAD;
5129dffe TP	98	}
	99
	100	static void wl1271_sdio_disable_interrupts(struct wl1271 *wl)
	101	{
	102	disable_irq(wl->irq);
	103	}
	104
	105	static void wl1271_sdio_enable_interrupts(struct wl1271 *wl)
	106	{
	107	enable_irq(wl->irq);
	108	}
	109
	110	static void wl1271_sdio_reset(struct wl1271 *wl)
	111	{
	112	}
	113
	114	static void wl1271_sdio_init(struct wl1271 *wl)
	115	{
	116	}
	117
	118	static void wl1271_sdio_raw_read(struct wl1271 wl, int addr, void buf,
a3b8ea75	119	size_t len, bool fixed)
5129dffe TP	120	{
	121	int ret;
	122	struct sdio_func *func = wl_to_func(wl);
	123
5129dffe TP	124	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
5129dffe TP	125	((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
a3b8ea75	126	wl1271_debug(DEBUG_SDIO, "sdio read 52 addr 0x%x, byte 0x%02x",
5129dffe TP	127	addr, ((u8 *)buf)[0]);
	128	} else {
	129	if (fixed)
	130	ret = sdio_readsb(func, buf, addr, len);
	131	else
	132	ret = sdio_memcpy_fromio(func, buf, addr, len);
	133
99e50314	134	wl1271_debug(DEBUG_SDIO, "sdio read 53 addr 0x%x, %zu bytes",
5129dffe	135	addr, len);
a3b8ea75	136	wl1271_dump_ascii(DEBUG_SDIO, "data: ", buf, len);
5129dffe TP	137	}
	138
	139	if (ret)
	140	wl1271_error("sdio read failed (%d)", ret);
5129dffe TP	141	}
	142
	143	static void wl1271_sdio_raw_write(struct wl1271 wl, int addr, void buf,
a3b8ea75	144	size_t len, bool fixed)
5129dffe TP	145	{
	146	int ret;
	147	struct sdio_func *func = wl_to_func(wl);
	148
5129dffe TP	149	if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
5129dffe TP	150	sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
a3b8ea75	151	wl1271_debug(DEBUG_SDIO, "sdio write 52 addr 0x%x, byte 0x%02x",
5129dffe TP	152	addr, ((u8 *)buf)[0]);
5129dffe TP	153	} else {
99e50314	154	wl1271_debug(DEBUG_SDIO, "sdio write 53 addr 0x%x, %zu bytes",
5129dffe	155	addr, len);
a3b8ea75	156	wl1271_dump_ascii(DEBUG_SDIO, "data: ", buf, len);
5129dffe TP	157
	158	if (fixed)
	159	ret = sdio_writesb(func, addr, buf, len);
	160	else
	161	ret = sdio_memcpy_toio(func, addr, buf, len);
	162	}
49063a0d	163
5129dffe TP	164	if (ret)
5129dffe TP	165	wl1271_error("sdio write failed (%d)", ret);
49063a0d OBC	166	}
49063a0d OBC	167
2cc78ff7	168	static int wl1271_sdio_power_on(struct wl1271 *wl)
49063a0d OBC	169	{
49063a0d OBC	170	struct sdio_func *func = wl_to_func(wl);
00cbb3c5 OBC	171	int ret;
00cbb3c5 OBC	172
11251e7e	173	/* Make sure the card will not be powered off by runtime PM */
00cbb3c5 OBC	174	ret = pm_runtime_get_sync(&func->dev);
	175	if (ret < 0)
	176	goto out;
5129dffe	177
11251e7e IY	178	/* Runtime PM might be disabled, so power up the card manually */
	179	ret = mmc_power_restore_host(func->card->host);
	180	if (ret < 0)
	181	goto out;
	182
49063a0d OBC	183	sdio_claim_host(func);
49063a0d OBC	184	sdio_enable_func(func);
2cc78ff7	185
00cbb3c5 OBC	186	out:
00cbb3c5 OBC	187	return ret;
49063a0d OBC	188	}
49063a0d OBC	189
2cc78ff7	190	static int wl1271_sdio_power_off(struct wl1271 *wl)
49063a0d OBC	191	{
49063a0d OBC	192	struct sdio_func *func = wl_to_func(wl);
11251e7e	193	int ret;
49063a0d	194
49063a0d OBC	195	sdio_disable_func(func);
49063a0d OBC	196	sdio_release_host(func);
2cc78ff7	197
11251e7e IY	198	/* Runtime PM might be disabled, so power off the card manually */
	199	ret = mmc_power_save_host(func->card->host);
	200	if (ret < 0)
	201	return ret;
	202
	203	/* Let runtime PM know the card is powered off */
00cbb3c5	204	return pm_runtime_put_sync(&func->dev);
5129dffe TP	205	}
5129dffe TP	206
2cc78ff7	207	static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
becd551c	208	{
49063a0d	209	if (enable)
2cc78ff7	210	return wl1271_sdio_power_on(wl);
49063a0d	211	else
2cc78ff7	212	return wl1271_sdio_power_off(wl);
becd551c TP	213	}
becd551c TP	214
5129dffe TP	215	static struct wl1271_if_operations sdio_ops = {
	216	.read = wl1271_sdio_raw_read,
	217	.write = wl1271_sdio_raw_write,
	218	.reset = wl1271_sdio_reset,
	219	.init = wl1271_sdio_init,
becd551c	220	.power = wl1271_sdio_set_power,
5129dffe TP	221	.dev = wl1271_sdio_wl_to_dev,
5129dffe TP	222	.enable_irq = wl1271_sdio_enable_interrupts,
a81159ed LC	223	.disable_irq = wl1271_sdio_disable_interrupts,
a81159ed LC	224	.set_block_size = wl1271_sdio_set_block_size,
5129dffe TP	225	};
5129dffe TP	226
5129dffe TP	227	static int __devinit wl1271_probe(struct sdio_func *func,
	228	const struct sdio_device_id *id)
	229	{
	230	struct ieee80211_hw *hw;
09cecc34	231	const struct wl12xx_platform_data *wlan_data;
5129dffe	232	struct wl1271 *wl;
341b7cde	233	unsigned long irqflags;
5129dffe TP	234	int ret;
	235
	236	/* We are only able to handle the wlan function */
	237	if (func->num != 0x02)
	238	return -ENODEV;
	239
	240	hw = wl1271_alloc_hw();
	241	if (IS_ERR(hw))
	242	return PTR_ERR(hw);
	243
	244	wl = hw->priv;
	245
	246	wl->if_priv = func;
	247	wl->if_ops = &sdio_ops;
	248
5129dffe TP	249	/* Grab access to FN0 for ELP reg. */
	250	func->card->quirks \|= MMC_QUIRK_LENIENT_FN0;
	251
1d732e8c AN	252	/* Use block mode for transferring over one block size of data */
	253	func->card->quirks \|= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
	254
09cecc34 OBC	255	wlan_data = wl12xx_get_platform_data();
	256	if (IS_ERR(wlan_data)) {
	257	ret = PTR_ERR(wlan_data);
	258	wl1271_error("missing wlan platform data: %d", ret);
5129dffe TP	259	goto out_free;
	260	}
	261
09cecc34	262	wl->irq = wlan_data->irq;
15cea993	263	wl->ref_clock = wlan_data->board_ref_clock;
5ea417ae	264	wl->tcxo_clock = wlan_data->board_tcxo_clock;
341b7cde IY	265	wl->platform_quirks = wlan_data->platform_quirks;
	266
	267	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
	268	irqflags = IRQF_TRIGGER_RISING;
	269	else
	270	irqflags = IRQF_TRIGGER_HIGH \| IRQF_ONESHOT;
09cecc34	271
a620865e	272	ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq,
341b7cde	273	irqflags,
a620865e	274	DRIVER_NAME, wl);
5129dffe TP	275	if (ret < 0) {
	276	wl1271_error("request_irq() failed: %d", ret);
	277	goto out_free;
	278	}
	279
2c0f2463	280	enable_irq_wake(wl->irq);
f44e5868	281	device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
2c0f2463	282
5129dffe TP	283	disable_irq(wl->irq);
	284
	285	ret = wl1271_init_ieee80211(wl);
	286	if (ret)
	287	goto out_irq;
	288
	289	ret = wl1271_register_hw(wl);
	290	if (ret)
	291	goto out_irq;
	292
49d7f6d8 TP	293	sdio_set_drvdata(func, wl);
49d7f6d8 TP	294
00cbb3c5 OBC	295	/* Tell PM core that we don't need the card to be powered now */
	296	pm_runtime_put_noidle(&func->dev);
	297
5129dffe TP	298	wl1271_notice("initialized");
	299
	300	return 0;
	301
5129dffe TP	302	out_irq:
	303	free_irq(wl->irq, wl);
	304
5129dffe	305	out_free:
3b56dd6a	306	wl1271_free_hw(wl);
5129dffe TP	307
	308	return ret;
	309	}
	310
	311	static void __devexit wl1271_remove(struct sdio_func *func)
	312	{
	313	struct wl1271 *wl = sdio_get_drvdata(func);
	314
00cbb3c5 OBC	315	/* Undo decrement done above in wl1271_probe */
	316	pm_runtime_get_noresume(&func->dev);
	317
3b56dd6a	318	wl1271_unregister_hw(wl);
f44e5868	319	device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
2c0f2463	320	disable_irq_wake(wl->irq);
4e23b11b	321	free_irq(wl->irq, wl);
801a673e	322	wl1271_free_hw(wl);
5129dffe TP	323	}
5129dffe TP	324
674f3058 OBC	325	static int wl1271_suspend(struct device *dev)
	326	{
	327	/* Tell MMC/SDIO core it's OK to power down the card
	328	* (if it isn't already), but not to remove it completely */
039bdb14 EP	329	struct sdio_func *func = dev_to_sdio_func(dev);
	330	struct wl1271 *wl = sdio_get_drvdata(func);
	331	mmc_pm_flag_t sdio_flags;
	332	int ret = 0;
	333
	334	wl1271_debug(DEBUG_MAC80211, "wl1271 suspend. wow_enabled: %d",
	335	wl->wow_enabled);
	336
	337	/* check whether sdio should keep power */
	338	if (wl->wow_enabled) {
	339	sdio_flags = sdio_get_host_pm_caps(func);
	340
	341	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
	342	wl1271_error("can't keep power while host "
	343	"is suspended");
	344	ret = -EINVAL;
	345	goto out;
	346	}
	347
	348	/* keep power while host suspended */
	349	ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
	350	if (ret) {
	351	wl1271_error("error while trying to keep power");
	352	goto out;
	353	}
f44e5868 EP	354
	355	/* release host */
	356	sdio_release_host(func);
039bdb14 EP	357	}
	358	out:
	359	return ret;
674f3058 OBC	360	}
	361
	362	static int wl1271_resume(struct device *dev)
	363	{
f44e5868 EP	364	struct sdio_func *func = dev_to_sdio_func(dev);
	365	struct wl1271 *wl = sdio_get_drvdata(func);
	366
	367	wl1271_debug(DEBUG_MAC80211, "wl1271 resume");
	368	if (wl->wow_enabled) {
	369	/* claim back host */
	370	sdio_claim_host(func);
	371	}
	372
674f3058 OBC	373	return 0;
	374	}
	375
	376	static const struct dev_pm_ops wl1271_sdio_pm_ops = {
	377	.suspend = wl1271_suspend,
	378	.resume = wl1271_resume,
	379	};
	380
5129dffe	381	static struct sdio_driver wl1271_sdio_driver = {
f4b5d8d8	382	.name = "wl1271_sdio",
5129dffe TP	383	.id_table = wl1271_devices,
	384	.probe = wl1271_probe,
	385	.remove = __devexit_p(wl1271_remove),
674f3058 OBC	386	.drv = {
	387	.pm = &wl1271_sdio_pm_ops,
	388	},
5129dffe TP	389	};
	390
	391	static int __init wl1271_init(void)
	392	{
	393	int ret;
	394
	395	ret = sdio_register_driver(&wl1271_sdio_driver);
	396	if (ret < 0) {
	397	wl1271_error("failed to register sdio driver: %d", ret);
	398	goto out;
	399	}
	400
	401	out:
	402	return ret;
	403	}
	404
	405	static void __exit wl1271_exit(void)
	406	{
	407	sdio_unregister_driver(&wl1271_sdio_driver);
	408
	409	wl1271_notice("unloaded");
	410	}
	411
	412	module_init(wl1271_init);
	413	module_exit(wl1271_exit);
	414
	415	MODULE_LICENSE("GPL");
5245e3a9	416	MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
5129dffe TP	417	MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
5129dffe TP	418	MODULE_FIRMWARE(WL1271_FW_NAME);
5aa42346	419	MODULE_FIRMWARE(WL128X_FW_NAME);
1aed55fd AN	420	MODULE_FIRMWARE(WL127X_AP_FW_NAME);
1aed55fd AN	421	MODULE_FIRMWARE(WL128X_AP_FW_NAME);