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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/leds/leds-hp6xx.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
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 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c new file mode 100644 index 000000000..54af9e63c --- /dev/null +++ b/drivers/leds/leds-hp6xx.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * 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. + */ + +#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"); |