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Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

Browse Source 
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Add HP Jornada 6xx driver
  leds: Remove the now uneeded ixp4xx driver
  leds: Add power LED to the wrap driver
  leds: Fix led-gpio active_low default brightness
  leds: hw acceleration for Clevo mail LED driver
  leds: Add support for hardware accelerated LED flashing
  leds: Standardise LED naming scheme
  leds: Add clevo notebook LED driver
This commit is contained in:
Linus Torvalds 2008-02-07 09:45:14 -08:00
commit 3d50337f62
23 changed files with 519 additions and 277 deletions
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29
Documentation/leds-class.txt
View File

@ -39,12 +39,33 @@ LED Device Naming
Is currently of the form:
"devicename:colour"
"devicename:colour:function"
There have been calls for LED properties such as colour to be exported as
individual led class attributes. As a solution which doesn't incur as much
overhead, I suggest these become part of the device name. The naming scheme
above leaves scope for further attributes should they be needed.
above leaves scope for further attributes should they be needed. If sections
of the name don't apply, just leave that section blank.
Hardware accelerated blink of LEDs
==================================
Some LEDs can be programmed to blink without any CPU interaction. To
support this feature, a LED driver can optionally implement the
blink_set() function (see <linux/leds.h>). If implemeted, triggers can
attempt to use it before falling back to software timers. The blink_set()
function should return 0 if the blink setting is supported, or -EINVAL
otherwise, which means that LED blinking will be handled by software.
The blink_set() function should choose a user friendly blinking
value if it is called with *delay_on==0 && *delay_off==0 parameters. In
this case the driver should give back the chosen value through delay_on
and delay_off parameters to the leds subsystem.
Any call to the brightness_set() callback function should cancel the
previously programmed hardware blinking function so setting the brightness
to 0 can also cancel the blinking of the LED.
Known Issues
@ -55,10 +76,6 @@ would cause nightmare dependency issues. I see this as a minor issue
compared to the benefits the simple trigger functionality brings. The
rest of the LED subsystem can be modular.
Some leds can be programmed to flash in hardware. As this isn't a generic
LED device property, this should be exported as a device specific sysfs
attribute rather than part of the class if this functionality is required.
Future Development
==================

4
arch/arm/mach-ixp4xx/dsmg600-setup.c
View File

@ -71,11 +71,11 @@ static struct i2c_board_info __initdata dsmg600_i2c_board_info [] = {
static struct gpio_led dsmg600_led_pins[] = {
{
.name = "power",
.name = "dsmg600:green:power",
.gpio = DSMG600_LED_PWR_GPIO,
},
{
.name = "wlan",
.name = "dsmg600:green:wlan",
.gpio = DSMG600_LED_WLAN_GPIO,
.active_low = true,
},

6
arch/arm/mach-ixp4xx/nas100d-setup.c
View File

@ -60,17 +60,17 @@ static struct i2c_board_info __initdata nas100d_i2c_board_info [] = {
static struct gpio_led nas100d_led_pins[] = {
{
.name = "wlan", /* green led */
.name = "nas100d:green:wlan",
.gpio = NAS100D_LED_WLAN_GPIO,
.active_low = true,
},
{
.name = "power", /* blue power led (off=flashing) */
.name = "nas100d:blue:power", /* (off=flashing) */
.gpio = NAS100D_LED_PWR_GPIO,
.active_low = true,
},
{
.name = "disk", /* yellow led */
.name = "nas100d:yellow:disk",
.gpio = NAS100D_LED_DISK_GPIO,
.active_low = true,
},

8
arch/arm/mach-ixp4xx/nslu2-setup.c
View File

@ -63,20 +63,20 @@ static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
static struct gpio_led nslu2_led_pins[] = {
{
.name = "ready", /* green led */
.name = "nslu2:green:ready",
.gpio = NSLU2_LED_GRN_GPIO,
},
{
.name = "status", /* red led */
.name = "nslu2:red:status",
.gpio = NSLU2_LED_RED_GPIO,
},
{
.name = "disk-1",
.name = "nslu2:green:disk-1",
.gpio = NSLU2_LED_DISK1_GPIO,
.active_low = true,
},
{
.name = "disk-2",
.name = "nslu2:green:disk-2",
.gpio = NSLU2_LED_DISK2_GPIO,
.active_low = true,
},

2
drivers/hwmon/applesmc.c
View File

@ -905,7 +905,7 @@ static ssize_t applesmc_key_at_index_store(struct device *dev,
}
static struct led_classdev applesmc_backlight = {
.name = "smc:kbd_backlight",
.name = "smc::kbd_backlight",
.default_trigger = "nand-disk",
.brightness_set = applesmc_brightness_set,
};

4
drivers/input/misc/wistron_btns.c
View File

@ -998,12 +998,12 @@ static void wistron_wifi_led_set(struct led_classdev *led_cdev,
}
static struct led_classdev wistron_mail_led = {
.name = "mail:green",
.name = "wistron:green:mail",
.brightness_set = wistron_mail_led_set,
};
static struct led_classdev wistron_wifi_led = {
.name = "wifi:red",
.name = "wistron:red:wifi",
.brightness_set = wistron_wifi_led_set,
};

48
drivers/leds/Kconfig
View File

@ -39,15 +39,6 @@ config LEDS_SPITZ
This option enables support for the LEDs on Sharp Zaurus
SL-Cxx00 series (C1000, C3000, C3100).
config LEDS_IXP4XX
tristate "LED Support for GPIO connected LEDs on IXP4XX processors"
depends on LEDS_CLASS && ARCH_IXP4XX
help
This option enables support for the LEDs connected to GPIO
outputs of the Intel IXP4XX processors. To be useful the
particular board must have LEDs and they must be connected
to the GPIO lines. If unsure, say Y.
config LEDS_TOSA
tristate "LED Support for the Sharp SL-6000 series"
depends on LEDS_CLASS && PXA_SHARPSL
@ -100,6 +91,13 @@ config LEDS_COBALT_RAQ
help
This option enables support for the Cobalt Raq series LEDs.
config LEDS_HP6XX
tristate "LED Support for the HP Jornada 6xx"
depends on LEDS_CLASS && SH_HP6XX
help
This option enables led support for the handheld
HP Jornada 620/660/680/690.
config LEDS_GPIO
tristate "LED Support for GPIO connected LEDs"
depends on LEDS_CLASS && GENERIC_GPIO
@ -114,6 +112,32 @@ config LEDS_CM_X270
help
This option enables support for the CM-X270 LEDs.
config LEDS_CLEVO_MAIL
tristate "Mail LED on Clevo notebook (EXPERIMENTAL)"
depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI && EXPERIMENTAL
help
This driver makes the mail LED accessible from userspace
programs through the leds subsystem. This LED have three
known mode: off, blink at 0.5Hz and blink at 1Hz.
The driver supports two kinds of interface: using ledtrig-timer
or through /sys/class/leds/clevo::mail/brightness. As this LED
cannot change it's brightness it blinks instead. The brightness
value 0 means off, 1..127 means blink at 0.5Hz and 128..255 means
blink at 1Hz.
This module can drive the mail LED for the following notebooks:
Clevo D410J
Clevo D410V
Clevo D400V/D470V (not tested, but might work)
Clevo M540N
Clevo M5x0N (not tested, but might work)
Positivo Mobile (Clevo M5x0V)
To compile this driver as a module, choose M here: the
module will be called leds-clevo-mail.
comment "LED Triggers"
config LEDS_TRIGGERS
@ -128,7 +152,11 @@ config LEDS_TRIGGER_TIMER
depends on LEDS_TRIGGERS
help
This allows LEDs to be controlled by a programmable timer
via sysfs. If unsure, say Y.
via sysfs. Some LED hardware can be programmed to start
blinking the LED without any further software interaction.
For more details read Documentation/leds-class.txt.
If unsure, say Y.
config LEDS_TRIGGER_IDE_DISK
bool "LED IDE Disk Trigger"

3
drivers/leds/Makefile
View File

@ -8,7 +8,6 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o
obj-$(CONFIG_LEDS_CORGI) += leds-corgi.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_SPITZ) += leds-spitz.o
obj-$(CONFIG_LEDS_IXP4XX) += leds-ixp4xx-gpio.o
obj-$(CONFIG_LEDS_TOSA) += leds-tosa.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
@ -19,6 +18,8 @@ obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o

12
drivers/leds/leds-ams-delta.c
View File

@ -37,42 +37,42 @@ static void ams_delta_led_set(struct led_classdev *led_cdev,
static struct ams_delta_led ams_delta_leds[] = {
{
.cdev = {
.name = "ams-delta:camera",
.name = "ams-delta::camera",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_CAMERA,
},
{
.cdev = {
.name = "ams-delta:advert",
.name = "ams-delta::advert",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_ADVERT,
},
{
.cdev = {
.name = "ams-delta:email",
.name = "ams-delta::email",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_EMAIL,
},
{
.cdev = {
.name = "ams-delta:handsfree",
.name = "ams-delta::handsfree",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_HANDSFREE,
},
{
.cdev = {
.name = "ams-delta:voicemail",
.name = "ams-delta::voicemail",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_VOICEMAIL,
},
{
.cdev = {
.name = "ams-delta:voice",
.name = "ams-delta::voice",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_VOICE,

219
drivers/leds/leds-clevo-mail.c Normal file
View File

@ -0,0 +1,219 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/leds.h>
#include <linux/io.h>
#include <linux/dmi.h>
#include <linux/i8042.h>
#define CLEVO_MAIL_LED_OFF 0x0084
#define CLEVO_MAIL_LED_BLINK_1HZ 0x008A
#define CLEVO_MAIL_LED_BLINK_0_5HZ 0x0083
MODULE_AUTHOR("Márton Németh <nm127@freemail.hu>");
MODULE_DESCRIPTION("Clevo mail LED driver");
MODULE_LICENSE("GPL");
static unsigned int __initdata nodetect;
module_param_named(nodetect, nodetect, bool, 0);
MODULE_PARM_DESC(nodetect, "Skip DMI hardware detection");
static struct platform_device *pdev;
static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
{
printk(KERN_INFO KBUILD_MODNAME ": '%s' found\n", id->ident);
return 1;
}
/*
* struct mail_led_whitelist - List of known good models
*
* Contains the known good models this driver is compatible with.
* When adding a new model try to be as strict as possible. This
* makes it possible to keep the false positives (the model is
* detected as working, but in reality it is not) as low as
* possible.
*/
static struct dmi_system_id __initdata mail_led_whitelist[] = {
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Clevo D410J",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "VIA"),
DMI_MATCH(DMI_PRODUCT_NAME, "K8N800"),
DMI_MATCH(DMI_PRODUCT_VERSION, "VT8204B")
}
},
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Clevo M5x0N",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
DMI_MATCH(DMI_PRODUCT_NAME, "M5x0N")
}
},
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Positivo Mobile",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "CLEVO Co. "),
DMI_MATCH(DMI_BOARD_NAME, "M5X0V "),
DMI_MATCH(DMI_PRODUCT_NAME, "Positivo Mobile"),
DMI_MATCH(DMI_PRODUCT_VERSION, "VT6198")
}
},
{
.callback = clevo_mail_led_dmi_callback,
.ident = "Clevo D410V",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Clevo, Co."),
DMI_MATCH(DMI_BOARD_NAME, "D400V/D470V"),
DMI_MATCH(DMI_BOARD_VERSION, "SS78B"),
DMI_MATCH(DMI_PRODUCT_VERSION, "Rev. A1")
}
},
{ }
};
static void clevo_mail_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value == LED_OFF)
i8042_command(NULL, CLEVO_MAIL_LED_OFF);
else if (value <= LED_HALF)
i8042_command(NULL, CLEVO_MAIL_LED_BLINK_0_5HZ);
else
i8042_command(NULL, CLEVO_MAIL_LED_BLINK_1HZ);
}
static int clevo_mail_led_blink(struct led_classdev *led_cdev,
unsigned long* delay_on,
unsigned long* delay_off)
{
int status = -EINVAL;
if (*delay_on == 0 /* ms */ && *delay_off == 0 /* ms */) {
/* Special case: the leds subsystem requested us to
* chose one user friendly blinking of the LED, and
* start it. Let's blink the led slowly (0.5Hz).
*/
*delay_on = 1000; /* ms */
*delay_off = 1000; /* ms */
i8042_command(NULL, CLEVO_MAIL_LED_BLINK_0_5HZ);
status = 0;
} else if (*delay_on == 500 /* ms */ && *delay_off == 500 /* ms */) {
/* blink the led with 1Hz */
i8042_command(NULL, CLEVO_MAIL_LED_BLINK_1HZ);
status = 0;
} else if (*delay_on == 1000 /* ms */ && *delay_off == 1000 /* ms */) {
/* blink the led with 0.5Hz */
i8042_command(NULL, CLEVO_MAIL_LED_BLINK_0_5HZ);
status = 0;
} else {
printk(KERN_DEBUG KBUILD_MODNAME
": clevo_mail_led_blink(..., %lu, %lu),"
" returning -EINVAL (unsupported)\n",
*delay_on, *delay_off);
}
return status;
}
static struct led_classdev clevo_mail_led = {
.name = "clevo::mail",
.brightness_set = clevo_mail_led_set,
.blink_set = clevo_mail_led_blink,
};
static int __init clevo_mail_led_probe(struct platform_device *pdev)
{
return led_classdev_register(&pdev->dev, &clevo_mail_led);
}
static int clevo_mail_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&clevo_mail_led);
return 0;
}
#ifdef CONFIG_PM
static int clevo_mail_led_suspend(struct platform_device *dev,
pm_message_t state)
{
led_classdev_suspend(&clevo_mail_led);
return 0;
}
static int clevo_mail_led_resume(struct platform_device *dev)
{
led_classdev_resume(&clevo_mail_led);
return 0;
}
#else
#define clevo_mail_led_suspend NULL
#define clevo_mail_led_resume NULL
#endif
static struct platform_driver clevo_mail_led_driver = {
.probe = clevo_mail_led_probe,
.remove = clevo_mail_led_remove,
.suspend = clevo_mail_led_suspend,
.resume = clevo_mail_led_resume,
.driver = {
.name = KBUILD_MODNAME,
},
};
static int __init clevo_mail_led_init(void)
{
int error = 0;
int count = 0;
/* Check with the help of DMI if we are running on supported hardware */
if (!nodetect) {
count = dmi_check_system(mail_led_whitelist);
} else {
count = 1;
printk(KERN_ERR KBUILD_MODNAME ": Skipping DMI detection. "
"If the driver works on your hardware please "
"report model and the output of dmidecode in tracker "
"at http://sourceforge.net/projects/clevo-mailled/\n");
}
if (!count)
return -ENODEV;
pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0);
if (!IS_ERR(pdev)) {
error = platform_driver_probe(&clevo_mail_led_driver,
clevo_mail_led_probe);
if (error) {
printk(KERN_ERR KBUILD_MODNAME
": Can't probe platform driver\n");
platform_device_unregister(pdev);
}
} else
error = PTR_ERR(pdev);
return error;
}
static void __exit clevo_mail_led_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&clevo_mail_led_driver);
clevo_mail_led_set(NULL, LED_OFF);
}
module_init(clevo_mail_led_init);
module_exit(clevo_mail_led_exit);

4
drivers/leds/leds-corgi.c
View File

@ -38,13 +38,13 @@ static void corgiled_green_set(struct led_classdev *led_cdev, enum led_brightnes
}
static struct led_classdev corgi_amber_led = {
.name = "corgi:amber",
.name = "corgi:amber:charge",
.default_trigger = "sharpsl-charge",
.brightness_set = corgiled_amber_set,
};
static struct led_classdev corgi_green_led = {
.name = "corgi:green",
.name = "corgi:green:mail",
.default_trigger = "nand-disk",
.brightness_set = corgiled_green_set,
};

2
drivers/leds/leds-gpio.c
View File

@ -85,7 +85,7 @@ static int gpio_led_probe(struct platform_device *pdev)
led_dat->can_sleep = gpio_cansleep(cur_led->gpio);
led_dat->active_low = cur_led->active_low;
led_dat->cdev.brightness_set = gpio_led_set;
led_dat->cdev.brightness = cur_led->active_low ? LED_FULL : LED_OFF;
led_dat->cdev.brightness = LED_OFF;
ret = gpio_request(led_dat->gpio, led_dat->cdev.name);
if (ret < 0)

120
drivers/leds/leds-hp6xx.c Normal file
View File

@ -0,0 +1,120 @@
/*
* LED Triggers Core
* For the HP Jornada 620/660/680/690 handhelds
*
* Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
* this driver is based on leds-spitz.c by Richard Purdie.
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <asm/hd64461.h>
#include <asm/hp6xx.h>
static void hp6xxled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
{
u8 v8;
v8 = inb(PKDR);
if (value)
outb(v8 & (~PKDR_LED_GREEN), PKDR);
else
outb(v8 | PKDR_LED_GREEN, PKDR);
}
static void hp6xxled_red_set(struct led_classdev *led_cdev, enum led_brightness value)
{
u16 v16;
v16 = inw(HD64461_GPBDR);
if (value)
outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
else
outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
}
static struct led_classdev hp6xx_red_led = {
.name = "hp6xx:red",
.default_trigger = "hp6xx-charge",
.brightness_set = hp6xxled_red_set,
};
static struct led_classdev hp6xx_green_led = {
.name = "hp6xx:green",
.default_trigger = "ide-disk",
.brightness_set = hp6xxled_green_set,
};
#ifdef CONFIG_PM
static int hp6xxled_suspend(struct platform_device *dev, pm_message_t state)
{
led_classdev_suspend(&hp6xx_red_led);
led_classdev_suspend(&hp6xx_green_led);
return 0;
}
static int hp6xxled_resume(struct platform_device *dev)
{
led_classdev_resume(&hp6xx_red_led);
led_classdev_resume(&hp6xx_green_led);
return 0;
}
#endif
static int hp6xxled_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
if (ret < 0)
led_classdev_unregister(&hp6xx_red_led);
return ret;
}
static int hp6xxled_remove(struct platform_device *pdev)
{
led_classdev_unregister(&hp6xx_red_led);
led_classdev_unregister(&hp6xx_green_led);
return 0;
}
static struct platform_driver hp6xxled_driver = {
.probe = hp6xxled_probe,
.remove = hp6xxled_remove,
#ifdef CONFIG_PM
.suspend = hp6xxled_suspend,
.resume = hp6xxled_resume,
#endif
.driver = {
.name = "hp6xx-led",
},
};
static int __init hp6xxled_init(void)
{
return platform_driver_register(&hp6xxled_driver);
}
static void __exit hp6xxled_exit(void)
{
platform_driver_unregister(&hp6xxled_driver);
}
module_init(hp6xxled_init);
module_exit(hp6xxled_exit);
MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
MODULE_LICENSE("GPL");

214
drivers/leds/leds-ixp4xx-gpio.c
View File

@ -1,214 +0,0 @@
/*
* IXP4XX GPIO driver LED driver
*
* Author: John Bowler <jbowler@acm.org>
*
* Copyright (c) 2006 John Bowler
*
* Permission is hereby granted, free of charge, to any
* person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the
* Software without restriction, including without
* limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the
* following conditions:
*
* The above copyright notice and this permission notice
* shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
* ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
* SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/leds.h>
#include <asm/arch/hardware.h>
extern spinlock_t gpio_lock;
/* Up to 16 gpio lines are possible. */
#define GPIO_MAX 16
static struct ixp4xxgpioled_device {
struct led_classdev ancestor;
int flags;
} ixp4xxgpioled_devices[GPIO_MAX];
void ixp4xxgpioled_brightness_set(struct led_classdev *pled,
enum led_brightness value)
{
const struct ixp4xxgpioled_device *const ixp4xx_dev =
container_of(pled, struct ixp4xxgpioled_device, ancestor);
const u32 gpio_pin = ixp4xx_dev - ixp4xxgpioled_devices;
if (gpio_pin < GPIO_MAX && ixp4xx_dev->ancestor.name != 0) {
/* Set or clear the 'gpio_pin' bit according to the style
* and the required setting (value > 0 == on)
*/
const int gpio_value =
(value > 0) == (ixp4xx_dev->flags != IXP4XX_GPIO_LOW) ?
IXP4XX_GPIO_HIGH : IXP4XX_GPIO_LOW;
{
unsigned long flags;
spin_lock_irqsave(&gpio_lock, flags);
gpio_line_set(gpio_pin, gpio_value);
spin_unlock_irqrestore(&gpio_lock, flags);
}
}
}
/* LEDs are described in resources, the following iterates over the valid
* LED resources.
*/
#define for_all_leds(i, pdev) \
for (i=0; i<pdev->num_resources; ++i) \
if (pdev->resource[i].start < GPIO_MAX && \
pdev->resource[i].name != 0)
/* The following applies 'operation' to each LED from the given platform,
* the function always returns 0 to allow tail call elimination.
*/
static int apply_to_all_leds(struct platform_device *pdev,
void (*operation)(struct led_classdev *pled))
{
int i;
for_all_leds(i, pdev)
operation(&ixp4xxgpioled_devices[pdev->resource[i].start].ancestor);
return 0;
}
#ifdef CONFIG_PM
static int ixp4xxgpioled_suspend(struct platform_device *pdev,
pm_message_t state)
{
return apply_to_all_leds(pdev, led_classdev_suspend);
}
static int ixp4xxgpioled_resume(struct platform_device *pdev)
{
return apply_to_all_leds(pdev, led_classdev_resume);
}
#endif
static void ixp4xxgpioled_remove_one_led(struct led_classdev *pled)
{
led_classdev_unregister(pled);
pled->name = 0;
}
static int ixp4xxgpioled_remove(struct platform_device *pdev)
{
return apply_to_all_leds(pdev, ixp4xxgpioled_remove_one_led);
}
static int ixp4xxgpioled_probe(struct platform_device *pdev)
{
/* The board level has to tell the driver where the
* LEDs are connected - there is no way to find out
* electrically. It must also say whether the GPIO
* lines are active high or active low.
*
* To do this read the num_resources (the number of
* LEDs) and the struct resource (the data for each
* LED). The name comes from the resource, and it
* isn't copied.
*/
int i;
for_all_leds(i, pdev) {
const u8 gpio_pin = pdev->resource[i].start;
int rc;
if (ixp4xxgpioled_devices[gpio_pin].ancestor.name == 0) {
unsigned long flags;
spin_lock_irqsave(&gpio_lock, flags);
gpio_line_config(gpio_pin, IXP4XX_GPIO_OUT);
/* The config can, apparently, reset the state,
* I suspect the gpio line may be an input and
* the config may cause the line to be latched,
* so the setting depends on how the LED is
* connected to the line (which affects how it
* floats if not driven).
*/
gpio_line_set(gpio_pin, IXP4XX_GPIO_HIGH);
spin_unlock_irqrestore(&gpio_lock, flags);
ixp4xxgpioled_devices[gpio_pin].flags =
pdev->resource[i].flags & IORESOURCE_BITS;
ixp4xxgpioled_devices[gpio_pin].ancestor.name =
pdev->resource[i].name;
/* This is how a board manufacturer makes the LED
* come on on reset - the GPIO line will be high, so
* make the LED light when the line is low...
*/
if (ixp4xxgpioled_devices[gpio_pin].flags != IXP4XX_GPIO_LOW)
ixp4xxgpioled_devices[gpio_pin].ancestor.brightness = 100;
else
ixp4xxgpioled_devices[gpio_pin].ancestor.brightness = 0;
ixp4xxgpioled_devices[gpio_pin].ancestor.flags = 0;
ixp4xxgpioled_devices[gpio_pin].ancestor.brightness_set =
ixp4xxgpioled_brightness_set;
ixp4xxgpioled_devices[gpio_pin].ancestor.default_trigger = 0;
}
rc = led_classdev_register(&pdev->dev,
&ixp4xxgpioled_devices[gpio_pin].ancestor);
if (rc < 0) {
ixp4xxgpioled_devices[gpio_pin].ancestor.name = 0;
ixp4xxgpioled_remove(pdev);
return rc;
}
}
return 0;
}
static struct platform_driver ixp4xxgpioled_driver = {
.probe = ixp4xxgpioled_probe,
.remove = ixp4xxgpioled_remove,
#ifdef CONFIG_PM
.suspend = ixp4xxgpioled_suspend,
.resume = ixp4xxgpioled_resume,
#endif
.driver = {
.name = "IXP4XX-GPIO-LED",
},
};
static int __init ixp4xxgpioled_init(void)
{
return platform_driver_register(&ixp4xxgpioled_driver);
}
static void __exit ixp4xxgpioled_exit(void)
{
platform_driver_unregister(&ixp4xxgpioled_driver);
}
module_init(ixp4xxgpioled_init);
module_exit(ixp4xxgpioled_exit);
MODULE_AUTHOR("John Bowler <jbowler@acm.org>");
MODULE_DESCRIPTION("IXP4XX GPIO LED driver");
MODULE_LICENSE("Dual MIT/GPL");

4
drivers/leds/leds-locomo.c
View File

@ -43,13 +43,13 @@ static void locomoled_brightness_set1(struct led_classdev *led_cdev,
}
static struct led_classdev locomo_led0 = {
.name = "locomo:amber",
.name = "locomo:amber:charge",
.default_trigger = "sharpsl-charge",
.brightness_set = locomoled_brightness_set0,
};
static struct led_classdev locomo_led1 = {
.name = "locomo:green",
.name = "locomo:green:mail",
.default_trigger = "nand-disk",
.brightness_set = locomoled_brightness_set1,
};

2
drivers/leds/leds-net48xx.c
View File

@ -31,7 +31,7 @@ static void net48xx_error_led_set(struct led_classdev *led_cdev,
}
static struct led_classdev net48xx_error_led = {
.name = "net48xx:error",
.name = "net48xx::error",
.brightness_set = net48xx_error_led_set,
};

8
drivers/leds/leds-spitz.c
View File

@ -38,13 +38,13 @@ static void spitzled_green_set(struct led_classdev *led_cdev, enum led_brightnes
}
static struct led_classdev spitz_amber_led = {
.name = "spitz:amber",
.name = "spitz:amber:charge",
.default_trigger = "sharpsl-charge",
.brightness_set = spitzled_amber_set,
};
static struct led_classdev spitz_green_led = {
.name = "spitz:green",
.name = "spitz:green:hddactivity",
.default_trigger = "ide-disk",
.brightness_set = spitzled_green_set,
};
@ -72,8 +72,10 @@ static int spitzled_probe(struct platform_device *pdev)
{
int ret;
if (machine_is_akita())
if (machine_is_akita()) {
spitz_green_led.name = "spitz:green:mail";
spitz_green_led.default_trigger = "nand-disk";
}
ret = led_classdev_register(&pdev->dev, &spitz_amber_led);
if (ret < 0)

4
drivers/leds/leds-tosa.c
View File

@ -45,13 +45,13 @@ static void tosaled_green_set(struct led_classdev *led_cdev,
}
static struct led_classdev tosa_amber_led = {
.name = "tosa:amber",
.name = "tosa:amber:charge",
.default_trigger = "sharpsl-charge",
.brightness_set = tosaled_amber_set,
};
static struct led_classdev tosa_green_led = {
.name = "tosa:green",
.name = "tosa:green:mail",
.default_trigger = "nand-disk",
.brightness_set = tosaled_green_set,
};

47
drivers/leds/leds-wrap.c
View File

@ -19,11 +19,21 @@
#include <linux/scx200_gpio.h>
#define DRVNAME "wrap-led"
#define WRAP_POWER_LED_GPIO 2
#define WRAP_ERROR_LED_GPIO 3
#define WRAP_EXTRA_LED_GPIO 18
#define WRAP_EXTRA_LED_GPIO 18
static struct platform_device *pdev;
static void wrap_power_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
scx200_gpio_set_low(WRAP_POWER_LED_GPIO);
else
scx200_gpio_set_high(WRAP_POWER_LED_GPIO);
}
static void wrap_error_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
@ -42,13 +52,18 @@ static void wrap_extra_led_set(struct led_classdev *led_cdev,
scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO);
}
static struct led_classdev wrap_power_led = {
.name = "wrap::power",
.brightness_set = wrap_power_led_set,
};
static struct led_classdev wrap_error_led = {
.name = "wrap:error",
.name = "wrap::error",
.brightness_set = wrap_error_led_set,
};
static struct led_classdev wrap_extra_led = {
.name = "wrap:extra",
.name = "wrap::extra",
.brightness_set = wrap_extra_led_set,
};
@ -56,6 +71,7 @@ static struct led_classdev wrap_extra_led = {
static int wrap_led_suspend(struct platform_device *dev,
pm_message_t state)
{
led_classdev_suspend(&wrap_power_led);
led_classdev_suspend(&wrap_error_led);
led_classdev_suspend(&wrap_extra_led);
return 0;
@ -63,6 +79,7 @@ static int wrap_led_suspend(struct platform_device *dev,
static int wrap_led_resume(struct platform_device *dev)
{
led_classdev_resume(&wrap_power_led);
led_classdev_resume(&wrap_error_led);
led_classdev_resume(&wrap_extra_led);
return 0;
@ -76,17 +93,31 @@ static int wrap_led_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &wrap_power_led);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &wrap_error_led);
if (ret == 0) {
ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
if (ret < 0)
led_classdev_unregister(&wrap_error_led);
}
if (ret < 0)
goto err1;
ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
if (ret < 0)
goto err2;
return ret;
err2:
led_classdev_unregister(&wrap_error_led);
err1:
led_classdev_unregister(&wrap_power_led);
return ret;
}
static int wrap_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&wrap_power_led);
led_classdev_unregister(&wrap_error_led);
led_classdev_unregister(&wrap_extra_led);
return 0;

41
drivers/leds/ledtrig-timer.c
View File

@ -77,8 +77,21 @@ static ssize_t led_delay_on_store(struct device *dev,
count++;
if (count == size) {
timer_data->delay_on = state;
mod_timer(&timer_data->timer, jiffies + 1);
if (timer_data->delay_on != state) {
/* the new value differs from the previous */
timer_data->delay_on = state;
/* deactivate previous settings */
del_timer_sync(&timer_data->timer);
/* try to activate hardware acceleration, if any */
if (!led_cdev->blink_set ||
led_cdev->blink_set(led_cdev,
&timer_data->delay_on, &timer_data->delay_off)) {
/* no hardware acceleration, blink via timer */
mod_timer(&timer_data->timer, jiffies + 1);
}
}
ret = count;
}
@ -110,8 +123,21 @@ static ssize_t led_delay_off_store(struct device *dev,
count++;
if (count == size) {
timer_data->delay_off = state;
mod_timer(&timer_data->timer, jiffies + 1);
if (timer_data->delay_off != state) {
/* the new value differs from the previous */
timer_data->delay_off = state;
/* deactivate previous settings */
del_timer_sync(&timer_data->timer);
/* try to activate hardware acceleration, if any */
if (!led_cdev->blink_set ||
led_cdev->blink_set(led_cdev,
&timer_data->delay_on, &timer_data->delay_off)) {
/* no hardware acceleration, blink via timer */
mod_timer(&timer_data->timer, jiffies + 1);
}
}
ret = count;
}
@ -143,6 +169,13 @@ static void timer_trig_activate(struct led_classdev *led_cdev)
if (rc)
goto err_out_delayon;
/* If there is hardware support for blinking, start one
* user friendly blink rate chosen by the driver.
*/
if (led_cdev->blink_set)
led_cdev->blink_set(led_cdev,
&timer_data->delay_on, &timer_data->delay_off);
return;
err_out_delayon:

2
drivers/misc/asus-laptop.c
View File

@ -239,7 +239,7 @@ static struct workqueue_struct *led_workqueue;
static int object##_led_wk; \
static DECLARE_WORK(object##_led_work, object##_led_update); \
static struct led_classdev object##_led = { \
.name = "asus:" ledname, \
.name = "asus::" ledname, \
.brightness_set = object##_led_set, \
}

8
drivers/net/wireless/b43/leds.c
View File

@ -147,12 +147,12 @@ static void b43_map_led(struct b43_wldev *dev,
case B43_LED_TRANSFER:
case B43_LED_APTRANSFER:
snprintf(name, sizeof(name),
"b43-%s:tx", wiphy_name(hw->wiphy));
"b43-%s::tx", wiphy_name(hw->wiphy));
b43_register_led(dev, &dev->led_tx, name,
ieee80211_get_tx_led_name(hw),
led_index, activelow);
snprintf(name, sizeof(name),
"b43-%s:rx", wiphy_name(hw->wiphy));
"b43-%s::rx", wiphy_name(hw->wiphy));
b43_register_led(dev, &dev->led_rx, name,
ieee80211_get_rx_led_name(hw),
led_index, activelow);
@ -162,7 +162,7 @@ static void b43_map_led(struct b43_wldev *dev,
case B43_LED_RADIO_B:
case B43_LED_MODE_BG:
snprintf(name, sizeof(name),
"b43-%s:radio", wiphy_name(hw->wiphy));
"b43-%s::radio", wiphy_name(hw->wiphy));
b43_register_led(dev, &dev->led_radio, name,
b43_rfkill_led_name(dev),
led_index, activelow);
@ -173,7 +173,7 @@ static void b43_map_led(struct b43_wldev *dev,
case B43_LED_WEIRD:
case B43_LED_ASSOC:
snprintf(name, sizeof(name),
"b43-%s:assoc", wiphy_name(hw->wiphy));
"b43-%s::assoc", wiphy_name(hw->wiphy));
b43_register_led(dev, &dev->led_assoc, name,
ieee80211_get_assoc_led_name(hw),
led_index, activelow);

5
include/linux/leds.h
View File

@ -38,6 +38,11 @@ struct led_classdev {
void (*brightness_set)(struct led_classdev *led_cdev,
enum led_brightness brightness);
/* Activate hardware accelerated blink */
int (*blink_set)(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off);
struct device *dev;
struct list_head node; /* LED Device list */
char *default_trigger; /* Trigger to use */