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-rw-r--r--drivers/leds/Kconfig6
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/leds-h1940.c163
3 files changed, 170 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 7399ba791116..383d297f328a 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -82,6 +82,12 @@ config LEDS_WRAP
82 help 82 help
83 This option enables support for the PCEngines WRAP programmable LEDs. 83 This option enables support for the PCEngines WRAP programmable LEDs.
84 84
85config LEDS_H1940
86 tristate "LED Support for iPAQ H1940 device"
87 depends LEDS_CLASS && ARCH_H1940
88 help
89 This option enables support for the LEDs on the h1940.
90
85comment "LED Triggers" 91comment "LED Triggers"
86 92
87config LEDS_TRIGGERS 93config LEDS_TRIGGERS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 500de3dc962a..377fe709216d 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
14obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o 14obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
15obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o 15obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
16obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o 16obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
17obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
17 18
18# LED Triggers 19# LED Triggers
19obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o 20obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
diff --git a/drivers/leds/leds-h1940.c b/drivers/leds/leds-h1940.c
new file mode 100644
index 000000000000..1d49d2ade557
--- /dev/null
+++ b/drivers/leds/leds-h1940.c
@@ -0,0 +1,163 @@
1/*
2 * drivers/leds/h1940-leds.c
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 */
26void 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
46static 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 */
55void 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
75static 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 */
85void 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
98static struct led_classdev h1940_blueled = {
99 .name = "h1940:blue",
100 .brightness_set = h1940_blueled_set,
101 .default_trigger = "h1940-bluetooth",
102};
103
104static 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
122err_blue:
123 led_classdev_unregister(&h1940_redled);
124err_red:
125 led_classdev_unregister(&h1940_greenled);
126err_green:
127 return ret;
128}
129
130static 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
139static struct platform_driver h1940leds_driver = {
140 .driver = {
141 .name = "h1940-leds",
142 },
143 .probe = h1940leds_probe,
144 .remove = h1940leds_remove,
145};
146
147
148static int __init h1940leds_init(void)
149{
150 return platform_driver_register(&h1940leds_driver);
151}
152
153static void __exit h1940leds_exit(void)
154{
155 platform_driver_unregister(&h1940leds_driver);
156}
157
158module_init(h1940leds_init);
159module_exit(h1940leds_exit);
160
161MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
162MODULE_DESCRIPTION("LED driver for the iPAQ H1940");
163MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 21:54:03 -0500