mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-11-19 06:54:58 +01:00
277 lines
6.7 KiB
Diff
277 lines
6.7 KiB
Diff
From b265be540c1169a5d6c32c5b09bb3f7b72a96a9d Mon Sep 17 00:00:00 2001
|
|
From: mokopatches <mokopatches@openmoko.org>
|
|
Date: Fri, 4 Apr 2008 11:35:53 +0100
|
|
Subject: [PATCH] gta02-leds.patch
|
|
|
|
---
|
|
drivers/leds/Kconfig | 6 +
|
|
drivers/leds/Makefile | 1 +
|
|
drivers/leds/leds-neo1973-gta02.c | 226 +++++++++++++++++++++++++++++++++++++
|
|
3 files changed, 233 insertions(+), 0 deletions(-)
|
|
create mode 100644 drivers/leds/leds-neo1973-gta02.c
|
|
|
|
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
|
|
index 4579a88..2f95707 100644
|
|
--- a/drivers/leds/Kconfig
|
|
+++ b/drivers/leds/Kconfig
|
|
@@ -120,6 +120,12 @@ config LEDS_NEO1973_VIBRATOR
|
|
help
|
|
This option enables support for the vibrator on the FIC Neo1973.
|
|
|
|
+config LEDS_NEO1973_GTA02
|
|
+ tristate "LED Support for the FIC Neo1973 (GTA02)"
|
|
+ depends on LEDS_CLASS && MACH_NEO1973_GTA02
|
|
+ help
|
|
+ This option enables support for the LEDs on the FIC Neo1973.
|
|
+
|
|
comment "LED Triggers"
|
|
|
|
config LEDS_TRIGGERS
|
|
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
|
|
index f64332d..c4ff826 100644
|
|
--- a/drivers/leds/Makefile
|
|
+++ b/drivers/leds/Makefile
|
|
@@ -20,6 +20,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
|
|
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
|
|
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
|
|
obj-$(CONFIG_LEDS_NEO1973_VIBRATOR) += leds-neo1973-vibrator.o
|
|
+obj-$(CONFIG_LEDS_NEO1973_GTA02) += leds-neo1973-gta02.o
|
|
|
|
# LED Triggers
|
|
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
|
|
diff --git a/drivers/leds/leds-neo1973-gta02.c b/drivers/leds/leds-neo1973-gta02.c
|
|
new file mode 100644
|
|
index 0000000..bf1d540
|
|
--- /dev/null
|
|
+++ b/drivers/leds/leds-neo1973-gta02.c
|
|
@@ -0,0 +1,226 @@
|
|
+/*
|
|
+ * LED driver for the FIC Neo1973 GTA02 GSM phone
|
|
+ *
|
|
+ * (C) 2006-2007 by OpenMoko, Inc.
|
|
+ * Author: Harald Welte <laforge@openmoko.org>
|
|
+ * All rights reserved.
|
|
+ *
|
|
+ * This program is free software; you can redistribute it and/or modify
|
|
+ * it under the terms of the GNU General Public License version 2 as
|
|
+ * published by the Free Software Foundation.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/leds.h>
|
|
+#include <asm/hardware.h>
|
|
+#include <asm/mach-types.h>
|
|
+#include <asm/arch/pwm.h>
|
|
+#include <asm/arch/gta02.h>
|
|
+#include <asm/plat-s3c/regs-timer.h>
|
|
+
|
|
+#define MAX_LEDS 3
|
|
+#define COUNTER 256
|
|
+
|
|
+struct gta02_led_priv
|
|
+{
|
|
+ struct mutex mutex;
|
|
+ struct led_classdev cdev;
|
|
+ struct s3c2410_pwm pwm;
|
|
+ unsigned int gpio;
|
|
+ unsigned int has_pwm;
|
|
+};
|
|
+
|
|
+struct gta02_led_bundle
|
|
+{
|
|
+ int num_leds;
|
|
+ struct gta02_led_priv led[MAX_LEDS];
|
|
+};
|
|
+
|
|
+static inline struct gta02_led_priv *to_priv(struct led_classdev *led_cdev)
|
|
+{
|
|
+ return container_of(led_cdev, struct gta02_led_priv, cdev);
|
|
+}
|
|
+
|
|
+static inline struct gta02_led_bundle *to_bundle(struct led_classdev *led_cdev)
|
|
+{
|
|
+ return dev_get_drvdata(led_cdev->dev);
|
|
+}
|
|
+
|
|
+static void gta02led_set(struct led_classdev *led_cdev,
|
|
+ enum led_brightness value)
|
|
+{
|
|
+ struct gta02_led_priv *lp = to_priv(led_cdev);
|
|
+
|
|
+ /*
|
|
+ * value == 255 -> 99% duty cycle (full power)
|
|
+ * value == 128 -> 50% duty cycle (medium power)
|
|
+ * value == 0 -> 0% duty cycle (zero power)
|
|
+ */
|
|
+ mutex_lock(&lp->mutex);
|
|
+ if (lp->has_pwm) {
|
|
+ s3c2410_pwm_duty_cycle(value, &lp->pwm);
|
|
+ } else {
|
|
+ if (value)
|
|
+ s3c2410_gpio_setpin(lp->gpio, 1);
|
|
+ else
|
|
+ s3c2410_gpio_setpin(lp->gpio, 0);
|
|
+ }
|
|
+ mutex_unlock(&lp->mutex);
|
|
+}
|
|
+
|
|
+#ifdef CONFIG_PM
|
|
+static int gta02led_suspend(struct platform_device *pdev, pm_message_t state)
|
|
+{
|
|
+ struct gta02_led_bundle *bundle = platform_get_drvdata(pdev);
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < bundle->num_leds; i++)
|
|
+ led_classdev_suspend(&bundle->led[i].cdev);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int gta02led_resume(struct platform_device *pdev)
|
|
+{
|
|
+ struct gta02_led_bundle *bundle = platform_get_drvdata(pdev);
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < bundle->num_leds; i++)
|
|
+ led_classdev_resume(&bundle->led[i].cdev);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+#endif
|
|
+
|
|
+static int __init gta02led_probe(struct platform_device *pdev)
|
|
+{
|
|
+ int i, rc;
|
|
+ struct gta02_led_bundle *bundle;
|
|
+
|
|
+ if (!machine_is_neo1973_gta02())
|
|
+ return -EIO;
|
|
+
|
|
+ bundle = kzalloc(sizeof(struct gta02_led_bundle), GFP_KERNEL);
|
|
+ if (!bundle)
|
|
+ return -ENOMEM;
|
|
+ platform_set_drvdata(pdev, bundle);
|
|
+
|
|
+ for (i = 0; i < pdev->num_resources; i++) {
|
|
+ struct gta02_led_priv *lp;
|
|
+ struct resource *r;
|
|
+
|
|
+ if (i >= MAX_LEDS)
|
|
+ break;
|
|
+
|
|
+ r = platform_get_resource(pdev, 0, i);
|
|
+ if (!r || !r->start || !r->name)
|
|
+ continue;
|
|
+
|
|
+ lp = &bundle->led[i];
|
|
+
|
|
+ lp->gpio = r->start;
|
|
+ lp->cdev.name = r->name;
|
|
+ lp->cdev.brightness_set = gta02led_set;
|
|
+
|
|
+ switch (lp->gpio) {
|
|
+ case S3C2410_GPB0:
|
|
+ lp->has_pwm = 1;
|
|
+ lp->pwm.timerid = PWM0;
|
|
+ s3c2410_gpio_cfgpin(lp->gpio, S3C2410_GPB0_TOUT0);
|
|
+ break;
|
|
+ case S3C2410_GPB1:
|
|
+ lp->has_pwm = 1;
|
|
+ lp->pwm.timerid = PWM1;
|
|
+ s3c2410_gpio_cfgpin(lp->gpio, S3C2410_GPB1_TOUT1);
|
|
+ break;
|
|
+ case S3C2410_GPB2:
|
|
+ lp->has_pwm = 1;
|
|
+ lp->pwm.timerid = PWM2;
|
|
+ s3c2410_gpio_cfgpin(lp->gpio, S3C2410_GPB2_TOUT2);
|
|
+ break;
|
|
+ case S3C2410_GPB3:
|
|
+ lp->has_pwm = 1;
|
|
+ lp->pwm.timerid = PWM3;
|
|
+ s3c2410_gpio_cfgpin(lp->gpio, S3C2410_GPB3_TOUT3);
|
|
+ break;
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ lp->pwm.prescaler = 0;
|
|
+ lp->pwm.divider = S3C2410_TCFG1_MUX3_DIV8;
|
|
+ lp->pwm.counter = COUNTER;
|
|
+ lp->pwm.comparer = COUNTER;
|
|
+ s3c2410_pwm_enable(&lp->pwm);
|
|
+ s3c2410_pwm_start(&lp->pwm);
|
|
+
|
|
+ switch (lp->gpio) {
|
|
+ case S3C2410_GPB0:
|
|
+ case S3C2410_GPB1:
|
|
+ case S3C2410_GPB2:
|
|
+ lp->has_pwm = 0;
|
|
+ s3c2410_gpio_cfgpin(lp->gpio, S3C2410_GPIO_OUTPUT);
|
|
+ s3c2410_gpio_setpin(lp->gpio, 0);
|
|
+ break;
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ mutex_init(&lp->mutex);
|
|
+ rc = led_classdev_register(&pdev->dev, &lp->cdev);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int gta02led_remove(struct platform_device *pdev)
|
|
+{
|
|
+ struct gta02_led_bundle *bundle = platform_get_drvdata(pdev);
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < bundle->num_leds; i++) {
|
|
+ struct gta02_led_priv *lp = &bundle->led[i];
|
|
+ if (lp->has_pwm)
|
|
+ s3c2410_pwm_disable(&lp->pwm);
|
|
+
|
|
+ led_classdev_unregister(&lp->cdev);
|
|
+ mutex_destroy(&lp->mutex);
|
|
+ }
|
|
+
|
|
+ platform_set_drvdata(pdev, NULL);
|
|
+ kfree(bundle);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct platform_driver gta02led_driver = {
|
|
+ .probe = gta02led_probe,
|
|
+ .remove = gta02led_remove,
|
|
+#ifdef CONFIG_PM
|
|
+ .suspend = gta02led_suspend,
|
|
+ .resume = gta02led_resume,
|
|
+#endif
|
|
+ .driver = {
|
|
+ .name = "gta02-led",
|
|
+ },
|
|
+};
|
|
+
|
|
+static int __init gta02led_init(void)
|
|
+{
|
|
+ return platform_driver_register(>a02led_driver);
|
|
+}
|
|
+
|
|
+static void __exit gta02led_exit(void)
|
|
+{
|
|
+ platform_driver_unregister(>a02led_driver);
|
|
+}
|
|
+
|
|
+module_init(gta02led_init);
|
|
+module_exit(gta02led_exit);
|
|
+
|
|
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
|
|
+MODULE_DESCRIPTION("FIC Neo1973 GTA02 LED driver");
|
|
+MODULE_LICENSE("GPL");
|
|
--
|
|
1.5.6.5
|
|
|