--- /dev/null
+From f7ad7d5e90a4ab68e7e25df3bd4a56b6c23f5e45 Mon Sep 17 00:00:00 2001
+From: mokopatches <mokopatches@openmoko.org>
+Date: Fri, 4 Apr 2008 11:31:55 +0100
+Subject: [PATCH] gta01-vibrator.patch
+ This patch adds driver support for the vibator device of the FIC/OpenMoko
+ Neo1973 GSM phone. The driver uses the existing LED class driver framework,
+ since there's a lot of similarity between the LED and the vibrator function.
+
+Signed-off-by: Harald Welte <laforge@openmoko.org>
+---
+ drivers/leds/Kconfig | 8 ++-
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-neo1973-vibrator.c | 181 ++++++++++++++++++++++++++++++++++
+ 3 files changed, 189 insertions(+), 1 deletions(-)
+ create mode 100644 drivers/leds/leds-neo1973-vibrator.c
+
+diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
+index ec568fa..4579a88 100644
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -57,7 +57,7 @@ config LEDS_TOSA
+
+ config LEDS_S3C24XX
+ tristate "LED Support for Samsung S3C24XX GPIO LEDs"
+- depends on LEDS_CLASS && ARCH_S3C2410
++ depends on LEDS_CLASS && ARCH_S3C2410 && S3C2410_PWM
+ help
+ This option enables support for LEDs connected to GPIO lines
+ on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
+@@ -114,6 +114,12 @@ config LEDS_CM_X270
+ help
+ This option enables support for the CM-X270 LEDs.
+
++config LEDS_NEO1973_VIBRATOR
++ tristate "Vibrator Support for the FIC Neo1973 GSM phone"
++ depends on LEDS_CLASS && MACH_NEO1973
++ help
++ This option enables support for the vibrator on the FIC Neo1973.
++
+ comment "LED Triggers"
+
+ config LEDS_TRIGGERS
+diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
+index a60de1b..f64332d 100644
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -19,6 +19,7 @@ obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
+ obj-$(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-$(CONFIG_LEDS_NEO1973_VIBRATOR) += leds-neo1973-vibrator.o
+
+ # LED Triggers
+ obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
+diff --git a/drivers/leds/leds-neo1973-vibrator.c b/drivers/leds/leds-neo1973-vibrator.c
+new file mode 100644
+index 0000000..0336e36
+--- /dev/null
++++ b/drivers/leds/leds-neo1973-vibrator.c
+@@ -0,0 +1,181 @@
++/*
++ * LED driver for the vibrator of the FIC Neo1973 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.
++ *
++ * Javi Roman <javiroman@kernel-labs.org>:
++ * Implement PWM support for GTA01Bv4 and later
++ */
++
++#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/gta01.h>
++#include <asm/plat-s3c/regs-timer.h>
++
++#define COUNTER 64
++
++struct neo1973_vib_priv {
++ struct led_classdev cdev;
++ unsigned int gpio;
++ struct mutex mutex;
++ unsigned int has_pwm;
++ struct s3c2410_pwm pwm;
++};
++
++static void neo1973_vib_vib_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ struct neo1973_vib_priv *vp =
++ container_of(led_cdev, struct neo1973_vib_priv, cdev);
++
++ /*
++ * value == 255 -> 99% duty cycle (full power)
++ * value == 128 -> 50% duty cycle (medium power)
++ * value == 0 -> 0% duty cycle (zero power)
++ */
++ mutex_lock(&vp->mutex);
++ if (vp->has_pwm)
++ s3c2410_pwm_duty_cycle(value/4, &vp->pwm);
++ else {
++ if (value)
++ s3c2410_gpio_setpin(vp->gpio, 1);
++ else
++ s3c2410_gpio_setpin(vp->gpio, 0);
++ }
++
++ mutex_unlock(&vp->mutex);
++}
++
++static struct neo1973_vib_priv neo1973_vib_led = {
++ .cdev = {
++ .name = "neo1973:vibrator",
++ .brightness_set = neo1973_vib_vib_set,
++ },
++};
++
++static int neo1973_vib_init_hw(struct neo1973_vib_priv *vp)
++{
++ int rc;
++
++ rc = s3c2410_pwm_init(&vp->pwm);
++ if (rc)
++ return rc;
++
++ vp->pwm.timerid = PWM3;
++ /* use same prescaler as arch/arm/plat-s3c24xx/time.c */
++ vp->pwm.prescaler = (6 - 1) / 2;
++ vp->pwm.divider = S3C2410_TCFG1_MUX3_DIV2;
++ vp->pwm.counter = COUNTER;
++ vp->pwm.comparer = COUNTER;
++
++ rc = s3c2410_pwm_enable(&vp->pwm);
++ if (rc)
++ return rc;
++
++ s3c2410_pwm_start(&vp->pwm);
++
++ return 0;
++}
++
++#ifdef CONFIG_PM
++static int neo1973_vib_suspend(struct platform_device *dev, pm_message_t state)
++{
++ led_classdev_suspend(&neo1973_vib_led.cdev);
++ return 0;
++}
++
++static int neo1973_vib_resume(struct platform_device *dev)
++{
++ struct neo1973_vib_priv *vp = platform_get_drvdata(dev);
++
++ if (vp->has_pwm)
++ neo1973_vib_init_hw(vp);
++
++ led_classdev_resume(&neo1973_vib_led.cdev);
++
++ return 0;
++}
++#endif /* CONFIG_PM */
++
++static int __init neo1973_vib_probe(struct platform_device *pdev)
++{
++ struct resource *r;
++ int rc;
++
++ if (!machine_is_neo1973_gta01())
++ return -EIO;
++
++ r = platform_get_resource(pdev, 0, 0);
++ if (!r || !r->start)
++ return -EIO;
++
++ neo1973_vib_led.gpio = r->start;
++ platform_set_drvdata(pdev, &neo1973_vib_led);
++
++ /* TOUT3 */
++ if (neo1973_vib_led.gpio == S3C2410_GPB3) {
++ rc = neo1973_vib_init_hw(&neo1973_vib_led);
++ if (rc)
++ return rc;
++
++ s3c2410_pwm_duty_cycle(0, &neo1973_vib_led.pwm);
++ s3c2410_gpio_cfgpin(neo1973_vib_led.gpio, S3C2410_GPB3_TOUT3);
++ neo1973_vib_led.has_pwm = 1;
++ }
++
++ mutex_init(&neo1973_vib_led.mutex);
++
++ return led_classdev_register(&pdev->dev, &neo1973_vib_led.cdev);
++}
++
++static int neo1973_vib_remove(struct platform_device *pdev)
++{
++ if (neo1973_vib_led.has_pwm)
++ s3c2410_pwm_disable(&neo1973_vib_led.pwm);
++
++ led_classdev_unregister(&neo1973_vib_led.cdev);
++
++ mutex_destroy(&neo1973_vib_led.mutex);
++
++ return 0;
++}
++
++static struct platform_driver neo1973_vib_driver = {
++ .probe = neo1973_vib_probe,
++ .remove = neo1973_vib_remove,
++#ifdef CONFIG_PM
++ .suspend = neo1973_vib_suspend,
++ .resume = neo1973_vib_resume,
++#endif
++ .driver = {
++ .name = "neo1973-vibrator",
++ },
++};
++
++static int __init neo1973_vib_init(void)
++{
++ return platform_driver_register(&neo1973_vib_driver);
++}
++
++static void __exit neo1973_vib_exit(void)
++{
++ platform_driver_unregister(&neo1973_vib_driver);
++}
++
++module_init(neo1973_vib_init);
++module_exit(neo1973_vib_exit);
++
++MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
++MODULE_DESCRIPTION("FIC Neo1973 vibrator driver");
++MODULE_LICENSE("GPL");
+--
+1.5.6.5
+
projects / openwrt.git / blobdiff