1 files changed, 163 insertions, 0 deletions

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 @@
+/*
+ * drivers/leds/h1940-leds.c
+ * Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * H1940 leds driver
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/hardware.h>
+#include <asm/arch/h1940-latch.h>
+
+/*
+ * Green led.
+ */
+void h1940_greenled_set(struct led_classdev *led_dev, enum led_brightness value)
+{
+        switch (value) {
+                case LED_HALF:
+                        h1940_latch_control(0,H1940_LATCH_LED_FLASH);
+                        s3c2410_gpio_setpin(S3C2410_GPA7,1);
+                        break;
+                case LED_FULL:
+                        h1940_latch_control(0,H1940_LATCH_LED_GREEN);
+                        s3c2410_gpio_setpin(S3C2410_GPA7,1);
+                        break;
+                default:
+                case LED_OFF:
+                        h1940_latch_control(H1940_LATCH_LED_FLASH,0);
+                        h1940_latch_control(H1940_LATCH_LED_GREEN,0);
+                        s3c2410_gpio_setpin(S3C2410_GPA7,0);
+                        break;
+        }
+}
+
+static struct led_classdev h1940_greenled = {
+        .name                   = "h1940:green",
+        .brightness_set         = h1940_greenled_set,
+        .default_trigger        = "h1940-charger",
+};
+
+/*
+ * Red led.
+ */
+void h1940_redled_set(struct led_classdev *led_dev, enum led_brightness value)
+{
+        switch (value) {
+                case LED_HALF:
+                        h1940_latch_control(0,H1940_LATCH_LED_FLASH);
+                        s3c2410_gpio_setpin(S3C2410_GPA1,1);
+                        break;
+                case LED_FULL:
+                        h1940_latch_control(0,H1940_LATCH_LED_RED);
+                        s3c2410_gpio_setpin(S3C2410_GPA1,1);
+                        break;
+                default:
+                case LED_OFF:
+                        h1940_latch_control(H1940_LATCH_LED_FLASH,0);
+                        h1940_latch_control(H1940_LATCH_LED_RED,0);
+                        s3c2410_gpio_setpin(S3C2410_GPA1,0);
+                        break;
+        }
+}
+
+static struct led_classdev h1940_redled = {
+        .name                   = "h1940:red",
+        .brightness_set         = h1940_redled_set,
+        .default_trigger        = "h1940-charger",
+};
+
+/*
+ * Blue led.
+ * (it can only be blue flashing led)
+ */
+void h1940_blueled_set(struct led_classdev *led_dev, enum led_brightness value)
+{
+        if (value) {
+                /* flashing Blue */
+                h1940_latch_control(0,H1940_LATCH_LED_FLASH);
+                s3c2410_gpio_setpin(S3C2410_GPA3,1);
+        } else {
+                h1940_latch_control(H1940_LATCH_LED_FLASH,0);
+                s3c2410_gpio_setpin(S3C2410_GPA3,0);
+        }
+
+}
+
+static struct led_classdev h1940_blueled = {
+        .name                   = "h1940:blue",
+        .brightness_set         = h1940_blueled_set,
+        .default_trigger        = "h1940-bluetooth",
+};
+
+static int __init h1940leds_probe(struct platform_device *pdev)
+{
+        int ret;
+
+        ret = led_classdev_register(&pdev->dev, &h1940_greenled);
+        if (ret)
+                goto err_green;
+
+        ret = led_classdev_register(&pdev->dev, &h1940_redled);
+        if (ret)
+                goto err_red;
+
+        ret = led_classdev_register(&pdev->dev, &h1940_blueled);
+        if (ret)
+                goto err_blue;
+
+        return 0;
+
+err_blue:
+        led_classdev_unregister(&h1940_redled);
+err_red:
+        led_classdev_unregister(&h1940_greenled);
+err_green:
+        return ret;
+}
+
+static int h1940leds_remove(struct platform_device *pdev)
+{
+        led_classdev_unregister(&h1940_greenled);
+        led_classdev_unregister(&h1940_redled);
+        led_classdev_unregister(&h1940_blueled);
+        return 0;
+}
+
+
+static struct platform_driver h1940leds_driver = {
+        .driver         = {
+                .name   = "h1940-leds",
+        },
+        .probe          = h1940leds_probe,
+        .remove         = h1940leds_remove,
+};
+
+
+static int __init h1940leds_init(void)
+{
+        return platform_driver_register(&h1940leds_driver);
+}
+
+static void __exit h1940leds_exit(void)
+{
+        platform_driver_unregister(&h1940leds_driver);
+}
+
+module_init(h1940leds_init);
+module_exit(h1940leds_exit);
+
+MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
+MODULE_DESCRIPTION("LED driver for the iPAQ H1940");
+MODULE_LICENSE("GPL");