Release 4.11 drivers/net/wireless/intel/iwlwifi/dvm/led.c
/******************************************************************************
*
* Copyright(c) 2003 - 2014 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 <linuxwifi@intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>
#include "iwl-io.h"
#include "iwl-trans.h"
#include "iwl-modparams.h"
#include "dev.h"
#include "agn.h"
/* Throughput OFF time(ms) ON time (ms)
* >300 25 25
* >200 to 300 40 40
* >100 to 200 55 55
* >70 to 100 65 65
* >50 to 70 75 75
* >20 to 50 85 85
* >10 to 20 95 95
* >5 to 10 110 110
* >1 to 5 130 130
* >0 to 1 167 167
* <=0 SOLID ON
*/
static const struct ieee80211_tpt_blink iwl_blink[] = {
{ .throughput = 0, .blink_time = 334 },
{ .throughput = 1 * 1024 - 1, .blink_time = 260 },
{ .throughput = 5 * 1024 - 1, .blink_time = 220 },
{ .throughput = 10 * 1024 - 1, .blink_time = 190 },
{ .throughput = 20 * 1024 - 1, .blink_time = 170 },
{ .throughput = 50 * 1024 - 1, .blink_time = 150 },
{ .throughput = 70 * 1024 - 1, .blink_time = 130 },
{ .throughput = 100 * 1024 - 1, .blink_time = 110 },
{ .throughput = 200 * 1024 - 1, .blink_time = 80 },
{ .throughput = 300 * 1024 - 1, .blink_time = 50 },
};
/* Set led register off */
void iwlagn_led_enable(struct iwl_priv *priv)
{
iwl_write32(priv->trans, CSR_LED_REG, CSR_LED_REG_TURN_ON);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 18 | 85.71% | 1 | 33.33% |
Emmanuel Grumbach | 2 | 9.52% | 1 | 33.33% |
Eytan Lifshitz | 1 | 4.76% | 1 | 33.33% |
Total | 21 | 100.00% | 3 | 100.00% |
/*
* Adjust led blink rate to compensate on a MAC Clock difference on every HW
* Led blink rate analysis showed an average deviation of 20% on 5000 series
* and up.
* Need to compensate on the led on/off time per HW according to the deviation
* to achieve the desired led frequency
* The calculation is: (100-averageDeviation)/100 * blinkTime
* For code efficiency the calculation will be:
* compensation = (100 - averageDeviation) * 64 / 100
* NewBlinkTime = (compensation * BlinkTime) / 64
*/
static inline u8 iwl_blink_compensation(struct iwl_priv *priv,
u8 time, u16 compensation)
{
if (!compensation) {
IWL_ERR(priv, "undefined blink compensation: "
"use pre-defined blinking time\n");
return time;
}
return (u8)((time * compensation) >> 6);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 50 | 100.00% | 1 | 100.00% |
Total | 50 | 100.00% | 1 | 100.00% |
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, },
.flags = CMD_ASYNC,
};
u32 reg;
reg = iwl_read32(priv->trans, CSR_LED_REG);
if (reg != (reg & CSR_LED_BSM_CTRL_MSK))
iwl_write32(priv->trans, CSR_LED_REG,
reg & CSR_LED_BSM_CTRL_MSK);
return iwl_dvm_send_cmd(priv, &cmd);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 85 | 88.54% | 1 | 20.00% |
Emmanuel Grumbach | 6 | 6.25% | 2 | 40.00% |
Johannes Berg | 5 | 5.21% | 2 | 40.00% |
Total | 96 | 100.00% | 5 | 100.00% |
/* Set led pattern command */
static int iwl_led_cmd(struct iwl_priv *priv,
unsigned long on,
unsigned long off)
{
struct iwl_led_cmd led_cmd = {
.id = IWL_LED_LINK,
.interval = IWL_DEF_LED_INTRVL
};
int ret;
if (!test_bit(STATUS_READY, &priv->status))
return -EBUSY;
if (priv->blink_on == on && priv->blink_off == off)
return 0;
if (off == 0) {
/* led is SOLID_ON */
on = IWL_LED_SOLID;
}
led_cmd.on = iwl_blink_compensation(priv, on,
priv->cfg->base_params->led_compensation);
led_cmd.off = iwl_blink_compensation(priv, off,
priv->cfg->base_params->led_compensation);
ret = iwl_send_led_cmd(priv, &led_cmd);
if (!ret) {
priv->blink_on = on;
priv->blink_off = off;
}
return ret;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 102 | 65.81% | 5 | 45.45% |
Mohamed Abbas | 42 | 27.10% | 1 | 9.09% |
Emmanuel Grumbach | 4 | 2.58% | 1 | 9.09% |
Tomas Winkler | 3 | 1.94% | 1 | 9.09% |
Don Fry | 2 | 1.29% | 1 | 9.09% |
Abhijeet Kolekar | 1 | 0.65% | 1 | 9.09% |
Johannes Berg | 1 | 0.65% | 1 | 9.09% |
Total | 155 | 100.00% | 11 | 100.00% |
static void iwl_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
unsigned long on = 0;
unsigned long off = 0;
if (brightness > 0)
on = IWL_LED_SOLID;
else
off = IWL_LED_SOLID;
iwl_led_cmd(priv, on, off);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 42 | 63.64% | 1 | 20.00% |
Hubert Tarasiuk | 12 | 18.18% | 1 | 20.00% |
Mohamed Abbas | 9 | 13.64% | 1 | 20.00% |
Johannes Berg | 2 | 3.03% | 1 | 20.00% |
Tomas Winkler | 1 | 1.52% | 1 | 20.00% |
Total | 66 | 100.00% | 5 | 100.00% |
static int iwl_led_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off)
{
struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
return iwl_led_cmd(priv, *delay_on, *delay_off);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 35 | 72.92% | 1 | 20.00% |
Ester Kummer | 9 | 18.75% | 1 | 20.00% |
Johannes Berg | 2 | 4.17% | 2 | 40.00% |
Tomas Winkler | 2 | 4.17% | 1 | 20.00% |
Total | 48 | 100.00% | 5 | 100.00% |
void iwl_leds_init(struct iwl_priv *priv)
{
int mode = iwlwifi_mod_params.led_mode;
int ret;
if (mode == IWL_LED_DISABLE) {
IWL_INFO(priv, "Led disabled\n");
return;
}
if (mode == IWL_LED_DEFAULT)
mode = priv->cfg->led_mode;
priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
wiphy_name(priv->hw->wiphy));
priv->led.brightness_set = iwl_led_brightness_set;
priv->led.blink_set = iwl_led_blink_set;
priv->led.max_brightness = 1;
switch (mode) {
case IWL_LED_DEFAULT:
WARN_ON(1);
break;
case IWL_LED_BLINK:
priv->led.default_trigger =
ieee80211_create_tpt_led_trigger(priv->hw,
IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
iwl_blink, ARRAY_SIZE(iwl_blink));
break;
case IWL_LED_RF_STATE:
priv->led.default_trigger =
ieee80211_get_radio_led_name(priv->hw);
break;
}
ret = led_classdev_register(priv->trans->dev, &priv->led);
if (ret) {
kfree(priv->led.name);
return;
}
priv->led_registered = true;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 112 | 58.33% | 3 | 25.00% |
Mohamed Abbas | 53 | 27.60% | 1 | 8.33% |
Johannes Berg | 17 | 8.85% | 2 | 16.67% |
Emmanuel Grumbach | 5 | 2.60% | 3 | 25.00% |
Sven Wegener | 3 | 1.56% | 1 | 8.33% |
Don Fry | 2 | 1.04% | 2 | 16.67% |
Total | 192 | 100.00% | 12 | 100.00% |
void iwl_leds_exit(struct iwl_priv *priv)
{
if (!priv->led_registered)
return;
led_classdev_unregister(&priv->led);
kfree(priv->led.name);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 26 | 74.29% | 2 | 66.67% |
Mohamed Abbas | 9 | 25.71% | 1 | 33.33% |
Total | 35 | 100.00% | 3 | 100.00% |
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Wey-Yi Guy | 593 | 68.00% | 10 | 31.25% |
Mohamed Abbas | 183 | 20.99% | 1 | 3.12% |
Johannes Berg | 34 | 3.90% | 6 | 18.75% |
Emmanuel Grumbach | 20 | 2.29% | 6 | 18.75% |
Hubert Tarasiuk | 12 | 1.38% | 1 | 3.12% |
Tomas Winkler | 12 | 1.38% | 2 | 6.25% |
Ester Kummer | 9 | 1.03% | 1 | 3.12% |
Don Fry | 4 | 0.46% | 2 | 6.25% |
Sven Wegener | 3 | 0.34% | 1 | 3.12% |
Abhijeet Kolekar | 1 | 0.11% | 1 | 3.12% |
Eytan Lifshitz | 1 | 0.11% | 1 | 3.12% |
Total | 872 | 100.00% | 32 | 100.00% |
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