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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 | ||
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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 | ||
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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"); |