[deliverable/linux.git] / drivers / net / wireless / ti / wl1251 / spi.c

/*
 * This file is part of wl1251
 *
 * Copyright (C) 2008 Nokia Corporation
 *
 * 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/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include <linux/wl12xx.h>

#include "wl1251.h"
#include "reg.h"
#include "spi.h"

static irqreturn_t wl1251_irq(int irq, void *cookie)
{
	struct wl1251 *wl;

	wl1251_debug(DEBUG_IRQ, "IRQ");

	wl = cookie;

	ieee80211_queue_work(wl->hw, &wl->irq_work);

	return IRQ_HANDLED;
}

static struct spi_device *wl_to_spi(struct wl1251 *wl)
{
	return wl->if_priv;
}

static void wl1251_spi_reset(struct wl1251 *wl)
{
	u8 *cmd;
	struct spi_transfer t;
	struct spi_message m;

	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
	if (!cmd) {
		wl1251_error("could not allocate cmd for spi reset");
		return;
	}

	memset(&t, 0, sizeof(t));
	spi_message_init(&m);

	memset(cmd, 0xff, WSPI_INIT_CMD_LEN);

	t.tx_buf = cmd;
	t.len = WSPI_INIT_CMD_LEN;
	spi_message_add_tail(&t, &m);

	spi_sync(wl_to_spi(wl), &m);

	wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);

	kfree(cmd);
}

static void wl1251_spi_wake(struct wl1251 *wl)
{
	u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd;
	struct spi_transfer t;
	struct spi_message m;

	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
	if (!cmd) {
		wl1251_error("could not allocate cmd for spi init");
		return;
	}

	memset(crc, 0, sizeof(crc));
	memset(&t, 0, sizeof(t));
	spi_message_init(&m);

	/* Set WSPI_INIT_COMMAND
	 * the data is being send from the MSB to LSB
	 */
	cmd[2] = 0xff;
	cmd[3] = 0xff;
	cmd[1] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
	cmd[0] = 0;
	cmd[7] = 0;
	cmd[6] |= HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
	cmd[6] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;

	if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
		cmd[5] |=  WSPI_INIT_CMD_DIS_FIXEDBUSY;
	else
		cmd[5] |= WSPI_INIT_CMD_EN_FIXEDBUSY;

	cmd[5] |= WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
		| WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;

	crc[0] = cmd[1];
	crc[1] = cmd[0];
	crc[2] = cmd[7];
	crc[3] = cmd[6];
	crc[4] = cmd[5];

	cmd[4] |= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1;
	cmd[4] |= WSPI_INIT_CMD_END;

	t.tx_buf = cmd;
	t.len = WSPI_INIT_CMD_LEN;
	spi_message_add_tail(&t, &m);

	spi_sync(wl_to_spi(wl), &m);

	wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);

	kfree(cmd);
}

static void wl1251_spi_reset_wake(struct wl1251 *wl)
{
	wl1251_spi_reset(wl);
	wl1251_spi_wake(wl);
}

static void wl1251_spi_read(struct wl1251 *wl, int addr, void *buf,
			    size_t len)
{
	struct spi_transfer t[3];
	struct spi_message m;
	u8 *busy_buf;
	u32 *cmd;

	cmd = &wl->buffer_cmd;
	busy_buf = wl->buffer_busyword;

	*cmd = 0;
	*cmd |= WSPI_CMD_READ;
	*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
	*cmd |= addr & WSPI_CMD_BYTE_ADDR;

	spi_message_init(&m);
	memset(t, 0, sizeof(t));

	t[0].tx_buf = cmd;
	t[0].len = 4;
	spi_message_add_tail(&t[0], &m);

	/* Busy and non busy words read */
	t[1].rx_buf = busy_buf;
	t[1].len = WL1251_BUSY_WORD_LEN;
	spi_message_add_tail(&t[1], &m);

	t[2].rx_buf = buf;
	t[2].len = len;
	spi_message_add_tail(&t[2], &m);

	spi_sync(wl_to_spi(wl), &m);

	/* FIXME: check busy words */

	wl1251_dump(DEBUG_SPI, "spi_read cmd -> ", cmd, sizeof(*cmd));
	wl1251_dump(DEBUG_SPI, "spi_read buf <- ", buf, len);
}

static void wl1251_spi_write(struct wl1251 *wl, int addr, void *buf,
			     size_t len)
{
	struct spi_transfer t[2];
	struct spi_message m;
	u32 *cmd;

	cmd = &wl->buffer_cmd;

	*cmd = 0;
	*cmd |= WSPI_CMD_WRITE;
	*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
	*cmd |= addr & WSPI_CMD_BYTE_ADDR;

	spi_message_init(&m);
	memset(t, 0, sizeof(t));

	t[0].tx_buf = cmd;
	t[0].len = sizeof(*cmd);
	spi_message_add_tail(&t[0], &m);

	t[1].tx_buf = buf;
	t[1].len = len;
	spi_message_add_tail(&t[1], &m);

	spi_sync(wl_to_spi(wl), &m);

	wl1251_dump(DEBUG_SPI, "spi_write cmd -> ", cmd, sizeof(*cmd));
	wl1251_dump(DEBUG_SPI, "spi_write buf -> ", buf, len);
}

static void wl1251_spi_enable_irq(struct wl1251 *wl)
{
	return enable_irq(wl->irq);
}

static void wl1251_spi_disable_irq(struct wl1251 *wl)
{
	return disable_irq(wl->irq);
}

static int wl1251_spi_set_power(struct wl1251 *wl, bool enable)
{
	if (wl->set_power)
		wl->set_power(enable);

	return 0;
}

static const struct wl1251_if_operations wl1251_spi_ops = {
	.read = wl1251_spi_read,
	.write = wl1251_spi_write,
	.reset = wl1251_spi_reset_wake,
	.enable_irq = wl1251_spi_enable_irq,
	.disable_irq = wl1251_spi_disable_irq,
	.power = wl1251_spi_set_power,
};

static int wl1251_spi_probe(struct spi_device *spi)
{
	struct wl1251_platform_data *pdata;
	struct ieee80211_hw *hw;
	struct wl1251 *wl;
	int ret;

	pdata = dev_get_platdata(&spi->dev);
	if (!pdata) {
		wl1251_error("no platform data");
		return -ENODEV;
	}

	hw = wl1251_alloc_hw();
	if (IS_ERR(hw))
		return PTR_ERR(hw);

	wl = hw->priv;

	SET_IEEE80211_DEV(hw, &spi->dev);
	spi_set_drvdata(spi, wl);
	wl->if_priv = spi;
	wl->if_ops = &wl1251_spi_ops;

	/* This is the only SPI value that we need to set here, the rest
	 * comes from the board-peripherals file
	 */
	spi->bits_per_word = 32;

	ret = spi_setup(spi);
	if (ret < 0) {
		wl1251_error("spi_setup failed");
		goto out_free;
	}

	wl->set_power = pdata->set_power;
	if (!wl->set_power) {
		wl1251_error("set power function missing in platform data");
		return -ENODEV;
	}

	wl->irq = spi->irq;
	if (wl->irq < 0) {
		wl1251_error("irq missing in platform data");
		return -ENODEV;
	}

	wl->use_eeprom = pdata->use_eeprom;

	irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
	ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
	if (ret < 0) {
		wl1251_error("request_irq() failed: %d", ret);
		goto out_free;
	}

	irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);

	ret = wl1251_init_ieee80211(wl);
	if (ret)
		goto out_irq;

	return 0;

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

 out_free:
	ieee80211_free_hw(hw);

	return ret;
}

static int wl1251_spi_remove(struct spi_device *spi)
{
	struct wl1251 *wl = spi_get_drvdata(spi);

	free_irq(wl->irq, wl);
	wl1251_free_hw(wl);

	return 0;
}

static struct spi_driver wl1251_spi_driver = {
	.driver = {
		.name		= DRIVER_NAME,
		.owner		= THIS_MODULE,
	},

	.probe		= wl1251_spi_probe,
	.remove		= wl1251_spi_remove,
};

module_spi_driver(wl1251_spi_driver);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>");
MODULE_ALIAS("spi:wl1251");
Commit	Line	Data
2f01a1f5	1	/*
80301cdc	2	* This file is part of wl1251
2f01a1f5 KV	3	*
	4	* Copyright (C) 2008 Nokia Corporation
	5	*
2f01a1f5 KV	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
a6b7a407	22	#include <linux/interrupt.h>
8e639c06	23	#include <linux/irq.h>
2f01a1f5	24	#include <linux/module.h>
5a0e3ad6	25	#include <linux/slab.h>
2f01a1f5 KV	26	#include <linux/crc7.h>
2f01a1f5 KV	27	#include <linux/spi/spi.h>
c1f9a095	28	#include <linux/wl12xx.h>
2f01a1f5	29
13674118	30	#include "wl1251.h"
9bc6772e KV	31	#include "reg.h"
9bc6772e KV	32	#include "spi.h"
2f01a1f5	33
b5ed9c1b BC	34	static irqreturn_t wl1251_irq(int irq, void *cookie)
	35	{
	36	struct wl1251 *wl;
	37
	38	wl1251_debug(DEBUG_IRQ, "IRQ");
	39
	40	wl = cookie;
	41
16e711f9	42	ieee80211_queue_work(wl->hw, &wl->irq_work);
b5ed9c1b BC	43
	44	return IRQ_HANDLED;
	45	}
	46
af8c78eb BC	47	static struct spi_device wl_to_spi(struct wl1251 wl)
	48	{
	49	return wl->if_priv;
	50	}
	51
08d9f572	52	static void wl1251_spi_reset(struct wl1251 *wl)
2f01a1f5 KV	53	{
	54	u8 *cmd;
	55	struct spi_transfer t;
	56	struct spi_message m;
	57
	58	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
	59	if (!cmd) {
80301cdc	60	wl1251_error("could not allocate cmd for spi reset");
2f01a1f5 KV	61	return;
	62	}
	63
	64	memset(&t, 0, sizeof(t));
	65	spi_message_init(&m);
	66
	67	memset(cmd, 0xff, WSPI_INIT_CMD_LEN);
	68
	69	t.tx_buf = cmd;
	70	t.len = WSPI_INIT_CMD_LEN;
	71	spi_message_add_tail(&t, &m);
	72
af8c78eb	73	spi_sync(wl_to_spi(wl), &m);
2f01a1f5	74
80301cdc	75	wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
a859e4d6 GI	76
a859e4d6 GI	77	kfree(cmd);
2f01a1f5 KV	78	}
2f01a1f5 KV	79
8e639c06	80	static void wl1251_spi_wake(struct wl1251 *wl)
2f01a1f5 KV	81	{
	82	u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd;
	83	struct spi_transfer t;
	84	struct spi_message m;
	85
	86	cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
	87	if (!cmd) {
80301cdc	88	wl1251_error("could not allocate cmd for spi init");
2f01a1f5 KV	89	return;
	90	}
	91
	92	memset(crc, 0, sizeof(crc));
	93	memset(&t, 0, sizeof(t));
	94	spi_message_init(&m);
	95
789e90e5	96	/* Set WSPI_INIT_COMMAND
2f01a1f5 KV	97	* the data is being send from the MSB to LSB
	98	*/
	99	cmd[2] = 0xff;
	100	cmd[3] = 0xff;
	101	cmd[1] = WSPI_INIT_CMD_START \| WSPI_INIT_CMD_TX;
	102	cmd[0] = 0;
	103	cmd[7] = 0;
	104	cmd[6] \|= HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
	105	cmd[6] \|= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
	106
	107	if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
	108	cmd[5] \|= WSPI_INIT_CMD_DIS_FIXEDBUSY;
	109	else
	110	cmd[5] \|= WSPI_INIT_CMD_EN_FIXEDBUSY;
	111
	112	cmd[5] \|= WSPI_INIT_CMD_IOD \| WSPI_INIT_CMD_IP \| WSPI_INIT_CMD_CS
	113	\| WSPI_INIT_CMD_WSPI \| WSPI_INIT_CMD_WS;
	114
	115	crc[0] = cmd[1];
	116	crc[1] = cmd[0];
	117	crc[2] = cmd[7];
	118	crc[3] = cmd[6];
	119	crc[4] = cmd[5];
	120
	121	cmd[4] \|= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1;
	122	cmd[4] \|= WSPI_INIT_CMD_END;
	123
	124	t.tx_buf = cmd;
	125	t.len = WSPI_INIT_CMD_LEN;
	126	spi_message_add_tail(&t, &m);
	127
af8c78eb	128	spi_sync(wl_to_spi(wl), &m);
2f01a1f5	129
80301cdc	130	wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);
a859e4d6 GI	131
a859e4d6 GI	132	kfree(cmd);
2f01a1f5 KV	133	}
2f01a1f5 KV	134
08d9f572 BC	135	static void wl1251_spi_reset_wake(struct wl1251 *wl)
	136	{
	137	wl1251_spi_reset(wl);
8e639c06	138	wl1251_spi_wake(wl);
08d9f572 BC	139	}
08d9f572 BC	140
08d9f572 BC	141	static void wl1251_spi_read(struct wl1251 wl, int addr, void buf,
08d9f572 BC	142	size_t len)
2f01a1f5 KV	143	{
	144	struct spi_transfer t[3];
	145	struct spi_message m;
5262c12d	146	u8 *busy_buf;
56343a3c	147	u32 *cmd;
2f01a1f5	148
56343a3c	149	cmd = &wl->buffer_cmd;
5262c12d	150	busy_buf = wl->buffer_busyword;
56343a3c KV	151
	152	*cmd = 0;
	153	*cmd \|= WSPI_CMD_READ;
	154	*cmd \|= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
	155	*cmd \|= addr & WSPI_CMD_BYTE_ADDR;
2f01a1f5 KV	156
	157	spi_message_init(&m);
	158	memset(t, 0, sizeof(t));
	159
56343a3c	160	t[0].tx_buf = cmd;
2f01a1f5 KV	161	t[0].len = 4;
	162	spi_message_add_tail(&t[0], &m);
	163
	164	/* Busy and non busy words read */
	165	t[1].rx_buf = busy_buf;
80301cdc	166	t[1].len = WL1251_BUSY_WORD_LEN;
2f01a1f5 KV	167	spi_message_add_tail(&t[1], &m);
	168
	169	t[2].rx_buf = buf;
	170	t[2].len = len;
	171	spi_message_add_tail(&t[2], &m);
	172
af8c78eb	173	spi_sync(wl_to_spi(wl), &m);
2f01a1f5 KV	174
	175	/* FIXME: check busy words */
	176
80301cdc KV	177	wl1251_dump(DEBUG_SPI, "spi_read cmd -> ", cmd, sizeof(*cmd));
80301cdc KV	178	wl1251_dump(DEBUG_SPI, "spi_read buf <- ", buf, len);
2f01a1f5 KV	179	}
2f01a1f5 KV	180
08d9f572 BC	181	static void wl1251_spi_write(struct wl1251 wl, int addr, void buf,
08d9f572 BC	182	size_t len)
2f01a1f5 KV	183	{
	184	struct spi_transfer t[2];
	185	struct spi_message m;
56343a3c	186	u32 *cmd;
2f01a1f5	187
56343a3c KV	188	cmd = &wl->buffer_cmd;
	189
	190	*cmd = 0;
	191	*cmd \|= WSPI_CMD_WRITE;
	192	*cmd \|= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
	193	*cmd \|= addr & WSPI_CMD_BYTE_ADDR;
2f01a1f5 KV	194
	195	spi_message_init(&m);
	196	memset(t, 0, sizeof(t));
	197
56343a3c KV	198	t[0].tx_buf = cmd;
56343a3c KV	199	t[0].len = sizeof(*cmd);
2f01a1f5 KV	200	spi_message_add_tail(&t[0], &m);
	201
	202	t[1].tx_buf = buf;
	203	t[1].len = len;
	204	spi_message_add_tail(&t[1], &m);
	205
af8c78eb	206	spi_sync(wl_to_spi(wl), &m);
2f01a1f5	207
80301cdc KV	208	wl1251_dump(DEBUG_SPI, "spi_write cmd -> ", cmd, sizeof(*cmd));
80301cdc KV	209	wl1251_dump(DEBUG_SPI, "spi_write buf -> ", buf, len);
2f01a1f5	210	}
08d9f572	211
b5ed9c1b BC	212	static void wl1251_spi_enable_irq(struct wl1251 *wl)
	213	{
	214	return enable_irq(wl->irq);
	215	}
	216
	217	static void wl1251_spi_disable_irq(struct wl1251 *wl)
	218	{
	219	return disable_irq(wl->irq);
	220	}
	221
cb7bbc7a GI	222	static int wl1251_spi_set_power(struct wl1251 *wl, bool enable)
	223	{
	224	if (wl->set_power)
	225	wl->set_power(enable);
	226
	227	return 0;
	228	}
	229
af8c78eb	230	static const struct wl1251_if_operations wl1251_spi_ops = {
08d9f572 BC	231	.read = wl1251_spi_read,
	232	.write = wl1251_spi_write,
	233	.reset = wl1251_spi_reset_wake,
b5ed9c1b BC	234	.enable_irq = wl1251_spi_enable_irq,
b5ed9c1b BC	235	.disable_irq = wl1251_spi_disable_irq,
cb7bbc7a	236	.power = wl1251_spi_set_power,
08d9f572	237	};
8e639c06	238
b74324d1	239	static int wl1251_spi_probe(struct spi_device *spi)
8e639c06	240	{
946651cb	241	struct wl1251_platform_data *pdata;
8e639c06 BC	242	struct ieee80211_hw *hw;
	243	struct wl1251 *wl;
	244	int ret;
	245
5f4fe16b	246	pdata = dev_get_platdata(&spi->dev);
8e639c06 BC	247	if (!pdata) {
	248	wl1251_error("no platform data");
	249	return -ENODEV;
	250	}
	251
	252	hw = wl1251_alloc_hw();
	253	if (IS_ERR(hw))
	254	return PTR_ERR(hw);
	255
	256	wl = hw->priv;
	257
	258	SET_IEEE80211_DEV(hw, &spi->dev);
c49b05ac	259	spi_set_drvdata(spi, wl);
af8c78eb	260	wl->if_priv = spi;
8e639c06 BC	261	wl->if_ops = &wl1251_spi_ops;
	262
	263	/* This is the only SPI value that we need to set here, the rest
789e90e5 SK	264	* comes from the board-peripherals file
789e90e5 SK	265	*/
8e639c06 BC	266	spi->bits_per_word = 32;
	267
	268	ret = spi_setup(spi);
	269	if (ret < 0) {
	270	wl1251_error("spi_setup failed");
	271	goto out_free;
	272	}
	273
	274	wl->set_power = pdata->set_power;
	275	if (!wl->set_power) {
	276	wl1251_error("set power function missing in platform data");
	277	return -ENODEV;
	278	}
	279
	280	wl->irq = spi->irq;
	281	if (wl->irq < 0) {
	282	wl1251_error("irq missing in platform data");
	283	return -ENODEV;
	284	}
	285
c95cf3d0 DJW	286	wl->use_eeprom = pdata->use_eeprom;
c95cf3d0 DJW	287
f380f2c4	288	irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
8e639c06 BC	289	ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
	290	if (ret < 0) {
	291	wl1251_error("request_irq() failed: %d", ret);
	292	goto out_free;
	293	}
	294
dced35ae	295	irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
8e639c06	296
8e639c06 BC	297	ret = wl1251_init_ieee80211(wl);
	298	if (ret)
	299	goto out_irq;
	300
	301	return 0;
	302
	303	out_irq:
	304	free_irq(wl->irq, wl);
	305
	306	out_free:
	307	ieee80211_free_hw(hw);
	308
	309	return ret;
	310	}
	311
b74324d1	312	static int wl1251_spi_remove(struct spi_device *spi)
8e639c06	313	{
c49b05ac	314	struct wl1251 *wl = spi_get_drvdata(spi);
8e639c06	315
b5ed9c1b	316	free_irq(wl->irq, wl);
8e639c06 BC	317	wl1251_free_hw(wl);
	318
	319	return 0;
	320	}
	321
	322	static struct spi_driver wl1251_spi_driver = {
	323	.driver = {
7590a550	324	.name = DRIVER_NAME,
8e639c06 BC	325	.owner = THIS_MODULE,
	326	},
	327
	328	.probe = wl1251_spi_probe,
b74324d1	329	.remove = wl1251_spi_remove,
8e639c06 BC	330	};
8e639c06 BC	331
19a4e68a	332	module_spi_driver(wl1251_spi_driver);
8e639c06 BC	333
8e639c06 BC	334	MODULE_LICENSE("GPL");
31c726f0	335	MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>");
f148cfdd	336	MODULE_ALIAS("spi:wl1251");