Commit | Line | Data |
---|---|---|
bd4009af | 1 | /* |
58862699 | 2 | * drivers/leds/leds-h1940.c |
bd4009af AP |
3 | * Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org> |
4 | * | |
5 | * This file is subject to the terms and conditions of the GNU General Public | |
6 | * License. See the file COPYING in the main directory of this archive for | |
7 | * more details. | |
8 | * | |
9 | * H1940 leds driver | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/platform_device.h> | |
15 | #include <linux/delay.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/ctype.h> | |
18 | #include <linux/leds.h> | |
19 | #include <asm/arch/regs-gpio.h> | |
20 | #include <asm/hardware.h> | |
21 | #include <asm/arch/h1940-latch.h> | |
22 | ||
23 | /* | |
24 | * Green led. | |
25 | */ | |
26 | void h1940_greenled_set(struct led_classdev *led_dev, enum led_brightness value) | |
27 | { | |
28 | switch (value) { | |
29 | case LED_HALF: | |
30 | h1940_latch_control(0,H1940_LATCH_LED_FLASH); | |
31 | s3c2410_gpio_setpin(S3C2410_GPA7,1); | |
32 | break; | |
33 | case LED_FULL: | |
34 | h1940_latch_control(0,H1940_LATCH_LED_GREEN); | |
35 | s3c2410_gpio_setpin(S3C2410_GPA7,1); | |
36 | break; | |
37 | default: | |
38 | case LED_OFF: | |
39 | h1940_latch_control(H1940_LATCH_LED_FLASH,0); | |
40 | h1940_latch_control(H1940_LATCH_LED_GREEN,0); | |
41 | s3c2410_gpio_setpin(S3C2410_GPA7,0); | |
42 | break; | |
43 | } | |
44 | } | |
45 | ||
46 | static struct led_classdev h1940_greenled = { | |
47 | .name = "h1940:green", | |
48 | .brightness_set = h1940_greenled_set, | |
49 | .default_trigger = "h1940-charger", | |
50 | }; | |
51 | ||
52 | /* | |
53 | * Red led. | |
54 | */ | |
55 | void h1940_redled_set(struct led_classdev *led_dev, enum led_brightness value) | |
56 | { | |
57 | switch (value) { | |
58 | case LED_HALF: | |
59 | h1940_latch_control(0,H1940_LATCH_LED_FLASH); | |
60 | s3c2410_gpio_setpin(S3C2410_GPA1,1); | |
61 | break; | |
62 | case LED_FULL: | |
63 | h1940_latch_control(0,H1940_LATCH_LED_RED); | |
64 | s3c2410_gpio_setpin(S3C2410_GPA1,1); | |
65 | break; | |
66 | default: | |
67 | case LED_OFF: | |
68 | h1940_latch_control(H1940_LATCH_LED_FLASH,0); | |
69 | h1940_latch_control(H1940_LATCH_LED_RED,0); | |
70 | s3c2410_gpio_setpin(S3C2410_GPA1,0); | |
71 | break; | |
72 | } | |
73 | } | |
74 | ||
75 | static struct led_classdev h1940_redled = { | |
76 | .name = "h1940:red", | |
77 | .brightness_set = h1940_redled_set, | |
78 | .default_trigger = "h1940-charger", | |
79 | }; | |
80 | ||
81 | /* | |
82 | * Blue led. | |
83 | * (it can only be blue flashing led) | |
84 | */ | |
85 | void h1940_blueled_set(struct led_classdev *led_dev, enum led_brightness value) | |
86 | { | |
87 | if (value) { | |
88 | /* flashing Blue */ | |
89 | h1940_latch_control(0,H1940_LATCH_LED_FLASH); | |
90 | s3c2410_gpio_setpin(S3C2410_GPA3,1); | |
91 | } else { | |
92 | h1940_latch_control(H1940_LATCH_LED_FLASH,0); | |
93 | s3c2410_gpio_setpin(S3C2410_GPA3,0); | |
94 | } | |
95 | ||
96 | } | |
97 | ||
98 | static struct led_classdev h1940_blueled = { | |
99 | .name = "h1940:blue", | |
100 | .brightness_set = h1940_blueled_set, | |
101 | .default_trigger = "h1940-bluetooth", | |
102 | }; | |
103 | ||
104 | static int __init h1940leds_probe(struct platform_device *pdev) | |
105 | { | |
106 | int ret; | |
107 | ||
108 | ret = led_classdev_register(&pdev->dev, &h1940_greenled); | |
109 | if (ret) | |
110 | goto err_green; | |
111 | ||
112 | ret = led_classdev_register(&pdev->dev, &h1940_redled); | |
113 | if (ret) | |
114 | goto err_red; | |
115 | ||
116 | ret = led_classdev_register(&pdev->dev, &h1940_blueled); | |
117 | if (ret) | |
118 | goto err_blue; | |
119 | ||
120 | return 0; | |
121 | ||
122 | err_blue: | |
123 | led_classdev_unregister(&h1940_redled); | |
124 | err_red: | |
125 | led_classdev_unregister(&h1940_greenled); | |
126 | err_green: | |
127 | return ret; | |
128 | } | |
129 | ||
130 | static int h1940leds_remove(struct platform_device *pdev) | |
131 | { | |
132 | led_classdev_unregister(&h1940_greenled); | |
133 | led_classdev_unregister(&h1940_redled); | |
134 | led_classdev_unregister(&h1940_blueled); | |
135 | return 0; | |
136 | } | |
137 | ||
138 | ||
139 | static struct platform_driver h1940leds_driver = { | |
140 | .driver = { | |
141 | .name = "h1940-leds", | |
3c4ded97 | 142 | .owner = THIS_MODULE, |
bd4009af AP |
143 | }, |
144 | .probe = h1940leds_probe, | |
145 | .remove = h1940leds_remove, | |
146 | }; | |
147 | ||
148 | ||
149 | static int __init h1940leds_init(void) | |
150 | { | |
151 | return platform_driver_register(&h1940leds_driver); | |
152 | } | |
153 | ||
154 | static void __exit h1940leds_exit(void) | |
155 | { | |
156 | platform_driver_unregister(&h1940leds_driver); | |
157 | } | |
158 | ||
159 | module_init(h1940leds_init); | |
160 | module_exit(h1940leds_exit); | |
161 | ||
162 | MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); | |
163 | MODULE_DESCRIPTION("LED driver for the iPAQ H1940"); | |
164 | MODULE_LICENSE("GPL"); | |
3c4ded97 | 165 | MODULE_ALIAS("platform:h1940-leds"); |