* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) 2006 infineon
- * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
*
*/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
#include <linux/errno.h>
-#include <asm/ifxmips/ifxmips.h>
-#include <asm/ifxmips/ifxmips_gpio.h>
-#include <asm/ifxmips/ifxmips_pmu.h>
#include <linux/leds.h>
#include <linux/delay.h>
-#define DRVNAME "ifxmips_led"
+#include <ifxmips.h>
+#include <ifxmips_gpio.h>
+#include <ifxmips_pmu.h>
+#define DRVNAME "ifxmips_led"
+
+/* might need to be changed depending on shift register used on the pcb */
+#if 1
#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
-//#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
+#else
+#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
+#endif
-#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
+#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
#define IFXMIPS_LED_GPIO_PORT 0
-#define IFXMIPS_MAX_LED 24
+#define IFXMIPS_MAX_LED 24
struct ifxmips_led {
struct led_classdev cdev;
u8 bit;
};
-void
-ifxmips_led_set (unsigned int led)
+void ifxmips_led_set(unsigned int led)
{
led &= 0xffffff;
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_set);
-void
-ifxmips_led_clear (unsigned int led)
+void ifxmips_led_clear(unsigned int led)
{
led = ~(led & 0xffffff);
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_clear);
-void
-ifxmips_led_blink_set (unsigned int led)
+void ifxmips_led_blink_set(unsigned int led)
{
led &= 0xffffff;
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
}
EXPORT_SYMBOL(ifxmips_led_blink_set);
-void
-ifxmips_led_blink_clear (unsigned int led)
+void ifxmips_led_blink_clear(unsigned int led)
{
led = ~(led & 0xffffff);
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
}
EXPORT_SYMBOL(ifxmips_led_blink_clear);
-void
-ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value)
+static void ifxmips_ledapi_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
{
- struct ifxmips_led *led_dev = container_of(led_cdev, struct ifxmips_led, cdev);
+ struct ifxmips_led *led_dev =
+ container_of(led_cdev, struct ifxmips_led, cdev);
- if(value)
+ if (value)
ifxmips_led_set(1 << led_dev->bit);
else
ifxmips_led_clear(1 << led_dev->bit);
}
-void
-ifxmips_led_setup_gpio (void)
+void ifxmips_led_setup_gpio(void)
{
int i = 0;
- /* we need to setup pins SH,D,ST (4,5,6) */
- for (i = 4; i < 7; i++)
- {
+ /* leds are controlled via a shift register
+ we need to setup pins SH,D,ST (4,5,6) to make it work */
+ for (i = 4; i < 7; i++) {
ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i);
ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i);
ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i);
}
}
-static int
-ifxmips_led_probe(struct platform_device *dev)
+static int ifxmips_led_probe(struct platform_device *dev)
{
int i = 0;
ifxmips_w32(0, IFXMIPS_LED_CON1);
/* setup the clock edge that the shift register is triggered on */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK, IFXMIPS_LED_CON0);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_CLK_EDGE, IFXMIPS_LED_CON0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK,
+ IFXMIPS_LED_CON0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_CLK_EDGE,
+ IFXMIPS_LED_CON0);
/* per default leds 15-0 are set */
ifxmips_w32(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
/* leds are update periodically by the FPID */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK, IFXMIPS_LED_CON1);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_UPD_SRC_FPI, IFXMIPS_LED_CON1);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK,
+ IFXMIPS_LED_CON1);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_UPD_SRC_FPI,
+ IFXMIPS_LED_CON1);
/* set led update speed */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK, IFXMIPS_LED_CON1);
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_SPEED, IFXMIPS_LED_CON1);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK,
+ IFXMIPS_LED_CON1);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON1) | IFXMIPS_LED_SPEED,
+ IFXMIPS_LED_CON1);
/* adsl 0 and 1 leds are updated by the arc */
- ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_ADSL_SRC, IFXMIPS_LED_CON0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | IFXMIPS_LED_ADSL_SRC,
+ IFXMIPS_LED_CON0);
/* per default, the leds are turned on */
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
- for(i = 0; i < IFXMIPS_MAX_LED; i++)
- {
- struct ifxmips_led *tmp = kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
+ for (i = 0; i < IFXMIPS_MAX_LED; i++) {
+ struct ifxmips_led *tmp =
+ kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
tmp->cdev.brightness_set = ifxmips_ledapi_set;
tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL);
- sprintf((char*)tmp->cdev.name, "ifxmips:led:%02d", i);
+ sprintf((char *)tmp->cdev.name, "ifxmips:led:%02d", i);
tmp->cdev.default_trigger = NULL;
tmp->bit = i;
led_classdev_register(&dev->dev, &tmp->cdev);
return 0;
}
-static int
-ifxmips_led_remove(struct platform_device *pdev)
+static int ifxmips_led_remove(struct platform_device *pdev)
{
return 0;
}
-static struct
-platform_driver ifxmips_led_driver = {
+static struct platform_driver ifxmips_led_driver = {
.probe = ifxmips_led_probe,
.remove = ifxmips_led_remove,
.driver = {
},
};
-int __init
-ifxmips_led_init (void)
+int __init ifxmips_led_init(void)
{
int ret = platform_driver_register(&ifxmips_led_driver);
if (ret)
- printk(KERN_INFO "ifxmips_led: Error registering platfom driver!");
+ printk(KERN_INFO
+ "ifxmips_led: Error registering platfom driver!");
return ret;
}
-void __exit
-ifxmips_led_exit (void)
+void __exit ifxmips_led_exit(void)
{
platform_driver_unregister(&ifxmips_led_driver);
}
projects / openwrt.git / blobdiff