projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| d39a7a63 KE |
2 | /* |
| 3 | * LED Triggers Core | |
| 4 | * For the HP Jornada 620/660/680/690 handhelds | |
| 5 | * | |
| 6 | * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com> | |
| 7 | * this driver is based on leds-spitz.c by Richard Purdie. | |
| d39a7a63 KE |
8 | */ |
| 9 | ||
| 86383b55 | 10 | #include <linux/module.h> |
| d39a7a63 | 11 | #include <linux/kernel.h> |
| d39a7a63 KE |
12 | #include <linux/platform_device.h> |
| 13 | #include <linux/leds.h> | |
| 14 | #include <asm/hd64461.h> | |
| 7639a454 | 15 | #include <mach/hp6xx.h> |
| d39a7a63 | 16 | |
| 4d404fd5 NM |
17 | static void hp6xxled_green_set(struct led_classdev *led_cdev, |
| 18 | enum led_brightness value) | |
| d39a7a63 KE |
19 | { |
| 20 | u8 v8; | |
| 21 | ||
| 22 | v8 = inb(PKDR); | |
| 23 | if (value) | |
| 24 | outb(v8 & (~PKDR_LED_GREEN), PKDR); | |
| 25 | else | |
| 26 | outb(v8 | PKDR_LED_GREEN, PKDR); | |
| 27 | } | |
| 28 | ||
| 4d404fd5 NM |
29 | static void hp6xxled_red_set(struct led_classdev *led_cdev, |
| 30 | enum led_brightness value) | |
| d39a7a63 KE |
31 | { |
| 32 | u16 v16; | |
| 33 | ||
| 34 | v16 = inw(HD64461_GPBDR); | |
| 35 | if (value) | |
| 36 | outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR); | |
| 37 | else | |
| 38 | outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR); | |
| 39 | } | |
| 40 | ||
| 41 | static struct led_classdev hp6xx_red_led = { | |
| 42 | .name = "hp6xx:red", | |
| 43 | .default_trigger = "hp6xx-charge", | |
| 44 | .brightness_set = hp6xxled_red_set, | |
| 859cb7f2 | 45 | .flags = LED_CORE_SUSPENDRESUME, |
| d39a7a63 KE |
46 | }; |
| 47 | ||
| 48 | static struct led_classdev hp6xx_green_led = { | |
| 49 | .name = "hp6xx:green", | |
| eb25cb99 | 50 | .default_trigger = "disk-activity", |
| d39a7a63 | 51 | .brightness_set = hp6xxled_green_set, |
| 859cb7f2 | 52 | .flags = LED_CORE_SUSPENDRESUME, |
| d39a7a63 KE |
53 | }; |
| 54 | ||
| d39a7a63 KE |
55 | static int hp6xxled_probe(struct platform_device *pdev) |
| 56 | { | |
| 57 | int ret; | |
| 58 | ||
| c0fc68ba | 59 | ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led); |
| d39a7a63 KE |
60 | if (ret < 0) |
| 61 | return ret; | |
| 62 | ||
| c0fc68ba | 63 | return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led); |
| d39a7a63 KE |
64 | } |
| 65 | ||
| 66 | static struct platform_driver hp6xxled_driver = { | |
| 67 | .probe = hp6xxled_probe, | |
| d39a7a63 KE |
68 | .driver = { |
| 69 | .name = "hp6xx-led", | |
| 70 | }, | |
| 71 | }; | |
| 72 | ||
| 892a8843 | 73 | module_platform_driver(hp6xxled_driver); |
| d39a7a63 KE |
74 | |
| 75 | MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>"); | |
| 76 | MODULE_DESCRIPTION("HP Jornada 6xx LED driver"); | |
| 77 | MODULE_LICENSE("GPL"); | |
| 892a8843 | 78 | MODULE_ALIAS("platform:hp6xx-led"); |