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> | |
a09e64fb RK |
19 | #include <mach/regs-gpio.h> |
20 | #include <mach/hardware.h> | |
21 | #include <mach/h1940-latch.h> | |
bd4009af AP |
22 | |
23 | /* | |
24 | * Green led. | |
25 | */ | |
dd1160dc BD |
26 | static void h1940_greenled_set(struct led_classdev *led_dev, |
27 | enum led_brightness value) | |
bd4009af AP |
28 | { |
29 | switch (value) { | |
4d404fd5 NM |
30 | case LED_HALF: |
31 | h1940_latch_control(0, H1940_LATCH_LED_FLASH); | |
32 | s3c2410_gpio_setpin(S3C2410_GPA7, 1); | |
33 | break; | |
34 | case LED_FULL: | |
35 | h1940_latch_control(0, H1940_LATCH_LED_GREEN); | |
36 | s3c2410_gpio_setpin(S3C2410_GPA7, 1); | |
37 | break; | |
38 | default: | |
39 | case LED_OFF: | |
40 | h1940_latch_control(H1940_LATCH_LED_FLASH, 0); | |
41 | h1940_latch_control(H1940_LATCH_LED_GREEN, 0); | |
42 | s3c2410_gpio_setpin(S3C2410_GPA7, 0); | |
43 | break; | |
bd4009af AP |
44 | } |
45 | } | |
46 | ||
47 | static struct led_classdev h1940_greenled = { | |
48 | .name = "h1940:green", | |
49 | .brightness_set = h1940_greenled_set, | |
50 | .default_trigger = "h1940-charger", | |
51 | }; | |
52 | ||
53 | /* | |
54 | * Red led. | |
55 | */ | |
dd1160dc BD |
56 | static void h1940_redled_set(struct led_classdev *led_dev, |
57 | enum led_brightness value) | |
bd4009af AP |
58 | { |
59 | switch (value) { | |
4d404fd5 NM |
60 | case LED_HALF: |
61 | h1940_latch_control(0, H1940_LATCH_LED_FLASH); | |
62 | s3c2410_gpio_setpin(S3C2410_GPA1, 1); | |
63 | break; | |
64 | case LED_FULL: | |
65 | h1940_latch_control(0, H1940_LATCH_LED_RED); | |
66 | s3c2410_gpio_setpin(S3C2410_GPA1, 1); | |
67 | break; | |
68 | default: | |
69 | case LED_OFF: | |
70 | h1940_latch_control(H1940_LATCH_LED_FLASH, 0); | |
71 | h1940_latch_control(H1940_LATCH_LED_RED, 0); | |
72 | s3c2410_gpio_setpin(S3C2410_GPA1, 0); | |
73 | break; | |
bd4009af AP |
74 | } |
75 | } | |
76 | ||
77 | static struct led_classdev h1940_redled = { | |
78 | .name = "h1940:red", | |
79 | .brightness_set = h1940_redled_set, | |
80 | .default_trigger = "h1940-charger", | |
81 | }; | |
82 | ||
83 | /* | |
84 | * Blue led. | |
85 | * (it can only be blue flashing led) | |
86 | */ | |
dd1160dc BD |
87 | static void h1940_blueled_set(struct led_classdev *led_dev, |
88 | enum led_brightness value) | |
bd4009af AP |
89 | { |
90 | if (value) { | |
91 | /* flashing Blue */ | |
4d404fd5 NM |
92 | h1940_latch_control(0, H1940_LATCH_LED_FLASH); |
93 | s3c2410_gpio_setpin(S3C2410_GPA3, 1); | |
bd4009af | 94 | } else { |
4d404fd5 NM |
95 | h1940_latch_control(H1940_LATCH_LED_FLASH, 0); |
96 | s3c2410_gpio_setpin(S3C2410_GPA3, 0); | |
bd4009af AP |
97 | } |
98 | ||
99 | } | |
100 | ||
101 | static struct led_classdev h1940_blueled = { | |
102 | .name = "h1940:blue", | |
103 | .brightness_set = h1940_blueled_set, | |
104 | .default_trigger = "h1940-bluetooth", | |
105 | }; | |
106 | ||
b0edba7e | 107 | static int __devinit h1940leds_probe(struct platform_device *pdev) |
bd4009af AP |
108 | { |
109 | int ret; | |
110 | ||
111 | ret = led_classdev_register(&pdev->dev, &h1940_greenled); | |
112 | if (ret) | |
113 | goto err_green; | |
114 | ||
115 | ret = led_classdev_register(&pdev->dev, &h1940_redled); | |
116 | if (ret) | |
117 | goto err_red; | |
118 | ||
119 | ret = led_classdev_register(&pdev->dev, &h1940_blueled); | |
120 | if (ret) | |
121 | goto err_blue; | |
122 | ||
123 | return 0; | |
124 | ||
125 | err_blue: | |
126 | led_classdev_unregister(&h1940_redled); | |
127 | err_red: | |
128 | led_classdev_unregister(&h1940_greenled); | |
129 | err_green: | |
130 | return ret; | |
131 | } | |
132 | ||
133 | static int h1940leds_remove(struct platform_device *pdev) | |
134 | { | |
135 | led_classdev_unregister(&h1940_greenled); | |
136 | led_classdev_unregister(&h1940_redled); | |
137 | led_classdev_unregister(&h1940_blueled); | |
138 | return 0; | |
139 | } | |
140 | ||
141 | ||
142 | static struct platform_driver h1940leds_driver = { | |
143 | .driver = { | |
144 | .name = "h1940-leds", | |
3c4ded97 | 145 | .owner = THIS_MODULE, |
bd4009af AP |
146 | }, |
147 | .probe = h1940leds_probe, | |
148 | .remove = h1940leds_remove, | |
149 | }; | |
150 | ||
151 | ||
152 | static int __init h1940leds_init(void) | |
153 | { | |
154 | return platform_driver_register(&h1940leds_driver); | |
155 | } | |
156 | ||
157 | static void __exit h1940leds_exit(void) | |
158 | { | |
159 | platform_driver_unregister(&h1940leds_driver); | |
160 | } | |
161 | ||
162 | module_init(h1940leds_init); | |
163 | module_exit(h1940leds_exit); | |
164 | ||
165 | MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); | |
166 | MODULE_DESCRIPTION("LED driver for the iPAQ H1940"); | |
167 | MODULE_LICENSE("GPL"); | |
3c4ded97 | 168 | MODULE_ALIAS("platform:h1940-leds"); |