diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/leds/leds-hp6xx.c | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/leds/leds-hp6xx.c')
-rw-r--r-- | drivers/leds/leds-hp6xx.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c new file mode 100644 index 000000000..137969fce --- /dev/null +++ b/drivers/leds/leds-hp6xx.c @@ -0,0 +1,81 @@ +/* + * 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/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <asm/hd64461.h> +#include <mach/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, + .flags = LED_CORE_SUSPENDRESUME, +}; + +static struct led_classdev hp6xx_green_led = { + .name = "hp6xx:green", + .default_trigger = "disk-activity", + .brightness_set = hp6xxled_green_set, + .flags = LED_CORE_SUSPENDRESUME, +}; + +static int hp6xxled_probe(struct platform_device *pdev) +{ + int ret; + + ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led); + if (ret < 0) + return ret; + + return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led); +} + +static struct platform_driver hp6xxled_driver = { + .probe = hp6xxled_probe, + .driver = { + .name = "hp6xx-led", + }, +}; + +module_platform_driver(hp6xxled_driver); + +MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>"); +MODULE_DESCRIPTION("HP Jornada 6xx LED driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:hp6xx-led"); |