[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-3945-led.c

/******************************************************************************
 *
 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License 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 Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/


#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>

#include "iwl-commands.h"
#include "iwl-3945.h"
#include "iwl-core.h"
#include "iwl-dev.h"


static const struct {
	u16 brightness;
	u8 on_time;
	u8 off_time;
} blink_tbl[] =
{
	{300, 25, 25},
	{200, 40, 40},
	{100, 55, 55},
	{70, 65, 65},
	{50, 75, 75},
	{20, 85, 85},
	{15, 95, 95 },
	{10, 110, 110},
	{5, 130, 130},
	{0, 167, 167},
	/*SOLID_ON*/
	{-1, IWL_LED_SOLID, 0}
};

#define IWL_1MB_RATE (128 * 1024)
#define IWL_LED_THRESHOLD (16)
#define IWL_MAX_BLINK_TBL (ARRAY_SIZE(blink_tbl) - 1) /*Exclude Solid on*/
#define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)

static int iwl3945_led_cmd_callback(struct iwl_priv *priv,
				    struct iwl_cmd *cmd,
				    struct sk_buff *skb)
{
	return 1;
}

static inline int iwl3945_brightness_to_idx(enum led_brightness brightness)
{
	return fls(0x000000FF & (u32)brightness);
}

/* Send led command */
static int iwl_send_led_cmd(struct iwl_priv *priv,
			    struct iwl_led_cmd *led_cmd)
{
	struct iwl_host_cmd cmd = {
		.id = REPLY_LEDS_CMD,
		.len = sizeof(struct iwl_led_cmd),
		.data = led_cmd,
		.meta.flags = CMD_ASYNC,
		.meta.u.callback = iwl3945_led_cmd_callback,
	};

	return iwl_send_cmd(priv, &cmd);
}


/* Set led on command */
static int iwl3945_led_pattern(struct iwl_priv *priv, int led_id,
			       unsigned int idx)
{
	struct iwl_led_cmd led_cmd = {
		.id = led_id,
		.interval = IWL_DEF_LED_INTRVL
	};

	BUG_ON(idx > IWL_MAX_BLINK_TBL);

	led_cmd.on = blink_tbl[idx].on_time;
	led_cmd.off = blink_tbl[idx].off_time;

	return iwl_send_led_cmd(priv, &led_cmd);
}


/* Set led on command */
static int iwl3945_led_on(struct iwl_priv *priv, int led_id)
{
	struct iwl_led_cmd led_cmd = {
		.id = led_id,
		.on = IWL_LED_SOLID,
		.off = 0,
		.interval = IWL_DEF_LED_INTRVL
	};
	return iwl_send_led_cmd(priv, &led_cmd);
}

/* Set led off command */
static int iwl3945_led_off(struct iwl_priv *priv, int led_id)
{
	struct iwl_led_cmd led_cmd = {
		.id = led_id,
		.on = 0,
		.off = 0,
		.interval = IWL_DEF_LED_INTRVL
	};
	IWL_DEBUG_LED(priv, "led off %d\n", led_id);
	return iwl_send_led_cmd(priv, &led_cmd);
}

/*
 * brightness call back function for Tx/Rx LED
 */
static int iwl3945_led_associated(struct iwl_priv *priv, int led_id)
{
	if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
	    !test_bit(STATUS_READY, &priv->status))
		return 0;


	/* start counting Tx/Rx bytes */
	if (!priv->last_blink_time && priv->allow_blinking)
		priv->last_blink_time = jiffies;
	return 0;
}

/*
 * brightness call back for association and radio
 */
static void iwl3945_led_brightness_set(struct led_classdev *led_cdev,
				enum led_brightness brightness)
{
	struct iwl3945_led *led = container_of(led_cdev,
					       struct iwl3945_led, led_dev);
	struct iwl_priv *priv = led->priv;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	switch (brightness) {
	case LED_FULL:
		if (led->type == IWL_LED_TRG_ASSOC) {
			priv->allow_blinking = 1;
			IWL_DEBUG_LED(priv, "MAC is  associated\n");
		}
		if (led->led_on)
			led->led_on(priv, IWL_LED_LINK);
		break;
	case LED_OFF:
		if (led->type == IWL_LED_TRG_ASSOC) {
			priv->allow_blinking = 0;
			IWL_DEBUG_LED(priv, "MAC is disassociated\n");
		}
		if (led->led_off)
			led->led_off(priv, IWL_LED_LINK);
		break;
	default:
		if (led->led_pattern) {
			int idx = iwl3945_brightness_to_idx(brightness);
			led->led_pattern(priv, IWL_LED_LINK, idx);
		}
		break;
	}
}


/*
 * Register led class with the system
 */
static int iwl3945_led_register_led(struct iwl_priv *priv,
				   struct iwl3945_led *led,
				   enum led_type type, u8 set_led,
				   char *trigger)
{
	struct device *device = wiphy_dev(priv->hw->wiphy);
	int ret;

	led->led_dev.name = led->name;
	led->led_dev.brightness_set = iwl3945_led_brightness_set;
	led->led_dev.default_trigger = trigger;

	led->priv = priv;
	led->type = type;

	ret = led_classdev_register(device, &led->led_dev);
	if (ret) {
		IWL_ERR(priv, "Error: failed to register led handler.\n");
		return ret;
	}

	led->registered = 1;

	if (set_led && led->led_on)
		led->led_on(priv, IWL_LED_LINK);
	return 0;
}


/*
 * calculate blink rate according to last 2 sec Tx/Rx activities
 */
static inline u8 get_blink_rate(struct iwl_priv *priv)
{
	int index;
	u64 current_tpt = priv->rxtxpackets;
	s64 tpt = current_tpt - priv->led_tpt;

	if (tpt < 0)
		tpt = -tpt;
	priv->led_tpt = current_tpt;

	if (!priv->allow_blinking)
		index = IWL_MAX_BLINK_TBL;
	else
		for (index = 0; index < IWL_MAX_BLINK_TBL; index++)
			if (tpt > (blink_tbl[index].brightness * IWL_1MB_RATE))
				break;
	return index;
}

static inline int is_rf_kill(struct iwl_priv *priv)
{
	return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
		test_bit(STATUS_RF_KILL_SW, &priv->status);
}

/*
 * this function called from handler. Since setting Led command can
 * happen very frequent we postpone led command to be called from
 * REPLY handler so we know ucode is up
 */
void iwl3945_led_background(struct iwl_priv *priv)
{
	u8 blink_idx;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
		priv->last_blink_time = 0;
		return;
	}
	if (is_rf_kill(priv)) {
		priv->last_blink_time = 0;
		return;
	}

	if (!priv->allow_blinking) {
		priv->last_blink_time = 0;
		if (priv->last_blink_rate != IWL_SOLID_BLINK_IDX) {
			priv->last_blink_rate = IWL_SOLID_BLINK_IDX;
			iwl3945_led_pattern(priv, IWL_LED_LINK,
					    IWL_SOLID_BLINK_IDX);
		}
		return;
	}
	if (!priv->last_blink_time ||
	    !time_after(jiffies, priv->last_blink_time +
			msecs_to_jiffies(1000)))
		return;

	blink_idx = get_blink_rate(priv);

	/* call only if blink rate change */
	if (blink_idx != priv->last_blink_rate)
		iwl3945_led_pattern(priv, IWL_LED_LINK, blink_idx);

	priv->last_blink_time = jiffies;
	priv->last_blink_rate = blink_idx;
	priv->rxtxpackets = 0;
}


/* Register all led handler */
int iwl3945_led_register(struct iwl_priv *priv)
{
	char *trigger;
	int ret;

	priv->last_blink_rate = 0;
	priv->rxtxpackets = 0;
	priv->led_tpt = 0;
	priv->last_blink_time = 0;
	priv->allow_blinking = 0;

	trigger = ieee80211_get_radio_led_name(priv->hw);
	snprintf(priv->led39[IWL_LED_TRG_RADIO].name,
		 sizeof(priv->led39[IWL_LED_TRG_RADIO].name), "iwl-%s:radio",
		 wiphy_name(priv->hw->wiphy));

	priv->led39[IWL_LED_TRG_RADIO].led_on = iwl3945_led_on;
	priv->led39[IWL_LED_TRG_RADIO].led_off = iwl3945_led_off;
	priv->led39[IWL_LED_TRG_RADIO].led_pattern = NULL;

	ret = iwl3945_led_register_led(priv,
				   &priv->led39[IWL_LED_TRG_RADIO],
				   IWL_LED_TRG_RADIO, 1, trigger);

	if (ret)
		goto exit_fail;

	trigger = ieee80211_get_assoc_led_name(priv->hw);
	snprintf(priv->led39[IWL_LED_TRG_ASSOC].name,
		 sizeof(priv->led39[IWL_LED_TRG_ASSOC].name), "iwl-%s:assoc",
		 wiphy_name(priv->hw->wiphy));

	ret = iwl3945_led_register_led(priv,
				   &priv->led39[IWL_LED_TRG_ASSOC],
				   IWL_LED_TRG_ASSOC, 0, trigger);

	/* for assoc always turn led on */
	priv->led39[IWL_LED_TRG_ASSOC].led_on = iwl3945_led_on;
	priv->led39[IWL_LED_TRG_ASSOC].led_off = iwl3945_led_on;
	priv->led39[IWL_LED_TRG_ASSOC].led_pattern = NULL;

	if (ret)
		goto exit_fail;

	trigger = ieee80211_get_rx_led_name(priv->hw);
	snprintf(priv->led39[IWL_LED_TRG_RX].name,
		 sizeof(priv->led39[IWL_LED_TRG_RX].name), "iwl-%s:RX",
		 wiphy_name(priv->hw->wiphy));

	ret = iwl3945_led_register_led(priv,
				   &priv->led39[IWL_LED_TRG_RX],
				   IWL_LED_TRG_RX, 0, trigger);

	priv->led39[IWL_LED_TRG_RX].led_on = iwl3945_led_associated;
	priv->led39[IWL_LED_TRG_RX].led_off = iwl3945_led_associated;
	priv->led39[IWL_LED_TRG_RX].led_pattern = iwl3945_led_pattern;

	if (ret)
		goto exit_fail;

	trigger = ieee80211_get_tx_led_name(priv->hw);
	snprintf(priv->led39[IWL_LED_TRG_TX].name,
		 sizeof(priv->led39[IWL_LED_TRG_TX].name), "iwl-%s:TX",
		 wiphy_name(priv->hw->wiphy));

	ret = iwl3945_led_register_led(priv,
				   &priv->led39[IWL_LED_TRG_TX],
				   IWL_LED_TRG_TX, 0, trigger);

	priv->led39[IWL_LED_TRG_TX].led_on = iwl3945_led_associated;
	priv->led39[IWL_LED_TRG_TX].led_off = iwl3945_led_associated;
	priv->led39[IWL_LED_TRG_TX].led_pattern = iwl3945_led_pattern;

	if (ret)
		goto exit_fail;

	return 0;

exit_fail:
	iwl3945_led_unregister(priv);
	return ret;
}


/* unregister led class */
static void iwl3945_led_unregister_led(struct iwl3945_led *led, u8 set_led)
{
	if (!led->registered)
		return;

	led_classdev_unregister(&led->led_dev);

	if (set_led)
		led->led_dev.brightness_set(&led->led_dev, LED_OFF);
	led->registered = 0;
}

/* Unregister all led handlers */
void iwl3945_led_unregister(struct iwl_priv *priv)
{
	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_ASSOC], 0);
	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_RX], 0);
	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_TX], 0);
	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_RADIO], 1);
}
Commit	Line	Data
ab53d8af MA	1	/******************************************************************************
ab53d8af MA	2	*
01f8162a	3	* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
ab53d8af MA	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc.,
	16	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	17	*
	18	* The full GNU General Public License is included in this distribution in the
	19	* file called LICENSE.
	20	*
	21	* Contact Information:
759ef89f	22	* Intel Linux Wireless <ilw@linux.intel.com>
ab53d8af MA	23	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	24	*
	25	*****************************************************************************/
	26
	27
	28	#include <linux/kernel.h>
	29	#include <linux/module.h>
ab53d8af MA	30	#include <linux/init.h>
	31	#include <linux/pci.h>
	32	#include <linux/dma-mapping.h>
	33	#include <linux/delay.h>
	34	#include <linux/skbuff.h>
	35	#include <linux/netdevice.h>
	36	#include <linux/wireless.h>
	37	#include <net/mac80211.h>
	38	#include <linux/etherdevice.h>
	39	#include <asm/unaligned.h>
	40
600c0e11	41	#include "iwl-commands.h"
ab53d8af	42	#include "iwl-3945.h"
518099a8 SO	43	#include "iwl-core.h"
518099a8 SO	44	#include "iwl-dev.h"
ab53d8af	45
ab53d8af MA	46
	47	static const struct {
	48	u16 brightness;
	49	u8 on_time;
9a9ad0cd	50	u8 off_time;
ab53d8af MA	51	} blink_tbl[] =
	52	{
	53	{300, 25, 25},
	54	{200, 40, 40},
	55	{100, 55, 55},
	56	{70, 65, 65},
	57	{50, 75, 75},
	58	{20, 85, 85},
	59	{15, 95, 95 },
	60	{10, 110, 110},
	61	{5, 130, 130},
9a9ad0cd AK	62	{0, 167, 167},
	63	/SOLID_ON/
	64	{-1, IWL_LED_SOLID, 0}
ab53d8af MA	65	};
ab53d8af MA	66
9a9ad0cd AK	67	#define IWL_1MB_RATE (128 * 1024)
	68	#define IWL_LED_THRESHOLD (16)
	69	#define IWL_MAX_BLINK_TBL (ARRAY_SIZE(blink_tbl) - 1) /Exclude Solid on/
	70	#define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)
	71
4a8a4322	72	static int iwl3945_led_cmd_callback(struct iwl_priv *priv,
c2d79b48	73	struct iwl_cmd *cmd,
ab53d8af MA	74	struct sk_buff *skb)
	75	{
	76	return 1;
	77	}
	78
9a9ad0cd AK	79	static inline int iwl3945_brightness_to_idx(enum led_brightness brightness)
	80	{
	81	return fls(0x000000FF & (u32)brightness);
	82	}
ab53d8af MA	83
ab53d8af MA	84	/* Send led command */
4a8a4322	85	static int iwl_send_led_cmd(struct iwl_priv *priv,
4c897253	86	struct iwl_led_cmd *led_cmd)
ab53d8af	87	{
c2d79b48	88	struct iwl_host_cmd cmd = {
ab53d8af	89	.id = REPLY_LEDS_CMD,
4c897253	90	.len = sizeof(struct iwl_led_cmd),
ab53d8af MA	91	.data = led_cmd,
ab53d8af MA	92	.meta.flags = CMD_ASYNC,
9a9ad0cd	93	.meta.u.callback = iwl3945_led_cmd_callback,
ab53d8af MA	94	};
ab53d8af MA	95
518099a8	96	return iwl_send_cmd(priv, &cmd);
ab53d8af MA	97	}
	98
	99
9a9ad0cd	100
ab53d8af	101	/* Set led on command */
4a8a4322	102	static int iwl3945_led_pattern(struct iwl_priv *priv, int led_id,
9a9ad0cd	103	unsigned int idx)
ab53d8af	104	{
4c897253	105	struct iwl_led_cmd led_cmd = {
ab53d8af	106	.id = led_id,
ab53d8af MA	107	.interval = IWL_DEF_LED_INTRVL
ab53d8af MA	108	};
9a9ad0cd AK	109
	110	BUG_ON(idx > IWL_MAX_BLINK_TBL);
	111
	112	led_cmd.on = blink_tbl[idx].on_time;
	113	led_cmd.off = blink_tbl[idx].off_time;
	114
ab53d8af MA	115	return iwl_send_led_cmd(priv, &led_cmd);
	116	}
	117
9a9ad0cd	118
ab53d8af	119	/* Set led on command */
4a8a4322	120	static int iwl3945_led_on(struct iwl_priv *priv, int led_id)
ab53d8af	121	{
4c897253	122	struct iwl_led_cmd led_cmd = {
ab53d8af	123	.id = led_id,
9a9ad0cd AK	124	.on = IWL_LED_SOLID,
9a9ad0cd AK	125	.off = 0,
ab53d8af MA	126	.interval = IWL_DEF_LED_INTRVL
ab53d8af MA	127	};
ab53d8af MA	128	return iwl_send_led_cmd(priv, &led_cmd);
	129	}
	130
ab53d8af	131	/* Set led off command */
4a8a4322	132	static int iwl3945_led_off(struct iwl_priv *priv, int led_id)
ab53d8af	133	{
4c897253	134	struct iwl_led_cmd led_cmd = {
ab53d8af MA	135	.id = led_id,
	136	.on = 0,
	137	.off = 0,
	138	.interval = IWL_DEF_LED_INTRVL
	139	};
e1623446	140	IWL_DEBUG_LED(priv, "led off %d\n", led_id);
ab53d8af MA	141	return iwl_send_led_cmd(priv, &led_cmd);
ab53d8af MA	142	}
ab53d8af MA	143
	144	/*
	145	* brightness call back function for Tx/Rx LED
	146	*/
4a8a4322	147	static int iwl3945_led_associated(struct iwl_priv *priv, int led_id)
ab53d8af MA	148	{
	149	if (test_bit(STATUS_EXIT_PENDING, &priv->status) \|\|
	150	!test_bit(STATUS_READY, &priv->status))
	151	return 0;
	152
	153
	154	/* start counting Tx/Rx bytes */
	155	if (!priv->last_blink_time && priv->allow_blinking)
	156	priv->last_blink_time = jiffies;
	157	return 0;
	158	}
	159
	160	/*
	161	* brightness call back for association and radio
	162	*/
	163	static void iwl3945_led_brightness_set(struct led_classdev *led_cdev,
	164	enum led_brightness brightness)
	165	{
	166	struct iwl3945_led *led = container_of(led_cdev,
	167	struct iwl3945_led, led_dev);
4a8a4322	168	struct iwl_priv *priv = led->priv;
ab53d8af MA	169
	170	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
	171	return;
	172
	173	switch (brightness) {
	174	case LED_FULL:
	175	if (led->type == IWL_LED_TRG_ASSOC) {
	176	priv->allow_blinking = 1;
e1623446	177	IWL_DEBUG_LED(priv, "MAC is associated\n");
ab53d8af MA	178	}
	179	if (led->led_on)
	180	led->led_on(priv, IWL_LED_LINK);
	181	break;
	182	case LED_OFF:
	183	if (led->type == IWL_LED_TRG_ASSOC) {
	184	priv->allow_blinking = 0;
e1623446	185	IWL_DEBUG_LED(priv, "MAC is disassociated\n");
ab53d8af MA	186	}
	187	if (led->led_off)
	188	led->led_off(priv, IWL_LED_LINK);
	189	break;
	190	default:
9a9ad0cd AK	191	if (led->led_pattern) {
	192	int idx = iwl3945_brightness_to_idx(brightness);
	193	led->led_pattern(priv, IWL_LED_LINK, idx);
	194	}
ab53d8af MA	195	break;
	196	}
	197	}
	198
	199
	200
	201	/*
	202	* Register led class with the system
	203	*/
4a8a4322	204	static int iwl3945_led_register_led(struct iwl_priv *priv,
ab53d8af MA	205	struct iwl3945_led *led,
ab53d8af MA	206	enum led_type type, u8 set_led,
5cbbb376	207	char *trigger)
ab53d8af MA	208	{
	209	struct device *device = wiphy_dev(priv->hw->wiphy);
	210	int ret;
	211
5cbbb376	212	led->led_dev.name = led->name;
ab53d8af MA	213	led->led_dev.brightness_set = iwl3945_led_brightness_set;
	214	led->led_dev.default_trigger = trigger;
	215
b6b16196 MS	216	led->priv = priv;
	217	led->type = type;
	218
ab53d8af MA	219	ret = led_classdev_register(device, &led->led_dev);
ab53d8af MA	220	if (ret) {
15b1687c	221	IWL_ERR(priv, "Error: failed to register led handler.\n");
ab53d8af MA	222	return ret;
	223	}
	224
ab53d8af MA	225	led->registered = 1;
	226
	227	if (set_led && led->led_on)
	228	led->led_on(priv, IWL_LED_LINK);
	229	return 0;
	230	}
	231
	232
	233	/*
	234	* calculate blink rate according to last 2 sec Tx/Rx activities
	235	*/
4a8a4322	236	static inline u8 get_blink_rate(struct iwl_priv *priv)
ab53d8af MA	237	{
ab53d8af MA	238	int index;
9a9ad0cd AK	239	u64 current_tpt = priv->rxtxpackets;
9a9ad0cd AK	240	s64 tpt = current_tpt - priv->led_tpt;
ab53d8af	241
9a9ad0cd AK	242	if (tpt < 0)
	243	tpt = -tpt;
	244	priv->led_tpt = current_tpt;
	245
	246	if (!priv->allow_blinking)
	247	index = IWL_MAX_BLINK_TBL;
	248	else
	249	for (index = 0; index < IWL_MAX_BLINK_TBL; index++)
	250	if (tpt > (blink_tbl[index].brightness * IWL_1MB_RATE))
	251	break;
	252	return index;
ab53d8af MA	253	}
ab53d8af MA	254
4a8a4322	255	static inline int is_rf_kill(struct iwl_priv *priv)
ab53d8af MA	256	{
	257	return test_bit(STATUS_RF_KILL_HW, &priv->status) \|\|
	258	test_bit(STATUS_RF_KILL_SW, &priv->status);
	259	}
	260
	261	/*
	262	* this function called from handler. Since setting Led command can
	263	* happen very frequent we postpone led command to be called from
	264	* REPLY handler so we know ucode is up
	265	*/
4a8a4322	266	void iwl3945_led_background(struct iwl_priv *priv)
ab53d8af	267	{
9a9ad0cd	268	u8 blink_idx;
ab53d8af MA	269
	270	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
	271	priv->last_blink_time = 0;
	272	return;
	273	}
	274	if (is_rf_kill(priv)) {
	275	priv->last_blink_time = 0;
	276	return;
	277	}
	278
	279	if (!priv->allow_blinking) {
	280	priv->last_blink_time = 0;
9a9ad0cd AK	281	if (priv->last_blink_rate != IWL_SOLID_BLINK_IDX) {
	282	priv->last_blink_rate = IWL_SOLID_BLINK_IDX;
	283	iwl3945_led_pattern(priv, IWL_LED_LINK,
	284	IWL_SOLID_BLINK_IDX);
ab53d8af MA	285	}
	286	return;
	287	}
	288	if (!priv->last_blink_time \|\|
	289	!time_after(jiffies, priv->last_blink_time +
	290	msecs_to_jiffies(1000)))
	291	return;
	292
9a9ad0cd	293	blink_idx = get_blink_rate(priv);
ab53d8af MA	294
ab53d8af MA	295	/* call only if blink rate change */
9a9ad0cd AK	296	if (blink_idx != priv->last_blink_rate)
9a9ad0cd AK	297	iwl3945_led_pattern(priv, IWL_LED_LINK, blink_idx);
ab53d8af	298
9a9ad0cd AK	299	priv->last_blink_time = jiffies;
9a9ad0cd AK	300	priv->last_blink_rate = blink_idx;
ab53d8af MA	301	priv->rxtxpackets = 0;
	302	}
	303
	304
	305	/* Register all led handler */
4a8a4322	306	int iwl3945_led_register(struct iwl_priv *priv)
ab53d8af MA	307	{
ab53d8af MA	308	char *trigger;
ab53d8af MA	309	int ret;
	310
	311	priv->last_blink_rate = 0;
	312	priv->rxtxpackets = 0;
9a9ad0cd	313	priv->led_tpt = 0;
ab53d8af MA	314	priv->last_blink_time = 0;
	315	priv->allow_blinking = 0;
	316
	317	trigger = ieee80211_get_radio_led_name(priv->hw);
f2c7e521 AK	318	snprintf(priv->led39[IWL_LED_TRG_RADIO].name,
f2c7e521 AK	319	sizeof(priv->led39[IWL_LED_TRG_RADIO].name), "iwl-%s:radio",
ab53d8af MA	320	wiphy_name(priv->hw->wiphy));
ab53d8af MA	321
f2c7e521 AK	322	priv->led39[IWL_LED_TRG_RADIO].led_on = iwl3945_led_on;
	323	priv->led39[IWL_LED_TRG_RADIO].led_off = iwl3945_led_off;
	324	priv->led39[IWL_LED_TRG_RADIO].led_pattern = NULL;
ab53d8af MA	325
ab53d8af MA	326	ret = iwl3945_led_register_led(priv,
f2c7e521	327	&priv->led39[IWL_LED_TRG_RADIO],
5cbbb376 SW	328	IWL_LED_TRG_RADIO, 1, trigger);
5cbbb376 SW	329
ab53d8af MA	330	if (ret)
	331	goto exit_fail;
	332
	333	trigger = ieee80211_get_assoc_led_name(priv->hw);
f2c7e521 AK	334	snprintf(priv->led39[IWL_LED_TRG_ASSOC].name,
f2c7e521 AK	335	sizeof(priv->led39[IWL_LED_TRG_ASSOC].name), "iwl-%s:assoc",
ab53d8af MA	336	wiphy_name(priv->hw->wiphy));
	337
	338	ret = iwl3945_led_register_led(priv,
f2c7e521	339	&priv->led39[IWL_LED_TRG_ASSOC],
5cbbb376 SW	340	IWL_LED_TRG_ASSOC, 0, trigger);
5cbbb376 SW	341
ab53d8af	342	/* for assoc always turn led on */
f2c7e521 AK	343	priv->led39[IWL_LED_TRG_ASSOC].led_on = iwl3945_led_on;
	344	priv->led39[IWL_LED_TRG_ASSOC].led_off = iwl3945_led_on;
	345	priv->led39[IWL_LED_TRG_ASSOC].led_pattern = NULL;
ab53d8af MA	346
	347	if (ret)
	348	goto exit_fail;
	349
	350	trigger = ieee80211_get_rx_led_name(priv->hw);
f2c7e521 AK	351	snprintf(priv->led39[IWL_LED_TRG_RX].name,
f2c7e521 AK	352	sizeof(priv->led39[IWL_LED_TRG_RX].name), "iwl-%s:RX",
ab53d8af MA	353	wiphy_name(priv->hw->wiphy));
ab53d8af MA	354
ab53d8af	355	ret = iwl3945_led_register_led(priv,
f2c7e521	356	&priv->led39[IWL_LED_TRG_RX],
5cbbb376	357	IWL_LED_TRG_RX, 0, trigger);
ab53d8af	358
f2c7e521 AK	359	priv->led39[IWL_LED_TRG_RX].led_on = iwl3945_led_associated;
	360	priv->led39[IWL_LED_TRG_RX].led_off = iwl3945_led_associated;
	361	priv->led39[IWL_LED_TRG_RX].led_pattern = iwl3945_led_pattern;
ab53d8af MA	362
	363	if (ret)
	364	goto exit_fail;
	365
	366	trigger = ieee80211_get_tx_led_name(priv->hw);
f2c7e521 AK	367	snprintf(priv->led39[IWL_LED_TRG_TX].name,
f2c7e521 AK	368	sizeof(priv->led39[IWL_LED_TRG_TX].name), "iwl-%s:TX",
ab53d8af	369	wiphy_name(priv->hw->wiphy));
9a9ad0cd	370
ab53d8af	371	ret = iwl3945_led_register_led(priv,
f2c7e521	372	&priv->led39[IWL_LED_TRG_TX],
5cbbb376 SW	373	IWL_LED_TRG_TX, 0, trigger);
5cbbb376 SW	374
f2c7e521 AK	375	priv->led39[IWL_LED_TRG_TX].led_on = iwl3945_led_associated;
	376	priv->led39[IWL_LED_TRG_TX].led_off = iwl3945_led_associated;
	377	priv->led39[IWL_LED_TRG_TX].led_pattern = iwl3945_led_pattern;
ab53d8af MA	378
	379	if (ret)
	380	goto exit_fail;
	381
	382	return 0;
	383
	384	exit_fail:
	385	iwl3945_led_unregister(priv);
	386	return ret;
	387	}
	388
	389
	390	/* unregister led class */
	391	static void iwl3945_led_unregister_led(struct iwl3945_led *led, u8 set_led)
	392	{
	393	if (!led->registered)
	394	return;
	395
	396	led_classdev_unregister(&led->led_dev);
	397
	398	if (set_led)
	399	led->led_dev.brightness_set(&led->led_dev, LED_OFF);
	400	led->registered = 0;
	401	}
	402
	403	/* Unregister all led handlers */
4a8a4322	404	void iwl3945_led_unregister(struct iwl_priv *priv)
ab53d8af	405	{
f2c7e521 AK	406	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_ASSOC], 0);
	407	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_RX], 0);
	408	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_TX], 0);
	409	iwl3945_led_unregister_led(&priv->led39[IWL_LED_TRG_RADIO], 1);
ab53d8af MA	410	}
ab53d8af MA	411