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authorJohn Crispin <john@openwrt.org>2008-05-14 13:43:18 +0000
committerJohn Crispin <john@openwrt.org>2008-05-14 13:43:18 +0000
commit9b340cf3dfac28a05d7142d1528349e4ac860a16 (patch)
treeb4a217b1c4de296d3540cf08ed186962d395b1c6 /target/linux/ifxmips/files/drivers
parent3c143ca8593359aec9bdda7925d153246352c344 (diff)
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add proper led support to ifxmips
SVN-Revision: 11137
Diffstat (limited to 'target/linux/ifxmips/files/drivers')
-rw-r--r--target/linux/ifxmips/files/drivers/char/ifxmips_led.c93
1 files changed, 30 insertions, 63 deletions
diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_led.c b/target/linux/ifxmips/files/drivers/char/ifxmips_led.c
index 15c173b..0e87fd2 100644
--- a/target/linux/ifxmips/files/drivers/char/ifxmips_led.c
+++ b/target/linux/ifxmips/files/drivers/char/ifxmips_led.c
@@ -31,8 +31,10 @@
#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"
+#define DRVNAME "ifxmips_led"
#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
//#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
@@ -41,7 +43,12 @@
#define IFXMIPS_LED_GPIO_PORT 0
-static int ifxmips_led_major;
+#define IFXMIPS_MAX_LED 24
+
+struct ifxmips_led {
+ struct led_classdev cdev;
+ u8 bit;
+};
void
ifxmips_led_set (unsigned int led)
@@ -76,6 +83,17 @@ ifxmips_led_blink_clear (unsigned int led)
EXPORT_SYMBOL(ifxmips_led_blink_clear);
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);
+
+ if(value)
+ ifxmips_led_set(1 << led_dev->bit);
+ else
+ ifxmips_led_clear(1 << led_dev->bit);
+}
+
+void
ifxmips_led_setup_gpio (void)
{
int i = 0;
@@ -91,40 +109,9 @@ ifxmips_led_setup_gpio (void)
}
static int
-led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- int ret = -EINVAL;
-
- switch ( cmd )
- {
- }
-
- return ret;
-}
-
-static int
-led_open (struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static int
-led_release (struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static struct file_operations ifxmips_led_fops = {
- .owner = THIS_MODULE,
- .ioctl = led_ioctl,
- .open = led_open,
- .release = led_release
-};
-
-static int
ifxmips_led_probe(struct platform_device *dev)
{
- int ret = 0;
+ int i = 0;
ifxmips_led_setup_gpio();
@@ -155,26 +142,23 @@ ifxmips_led_probe(struct platform_device *dev)
/* per default, the leds are turned on */
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
- ifxmips_led_major = register_chrdev(0, "ifxmips_led", &ifxmips_led_fops);
-
- if (!ifxmips_led_major)
+ for(i = 0; i < IFXMIPS_MAX_LED; i++)
{
- printk("ifxmips_led: Error! Could not register device. %d\n", ifxmips_led_major);
- ret = -EINVAL;
-
- goto out;
+ 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(tmp->cdev.name, "ifxmips:led:%02d", i);
+ tmp->cdev.default_trigger = NULL;
+ tmp->bit = i;
+ led_classdev_register(&dev->dev, &tmp->cdev);
}
- printk(KERN_INFO "ifxmips_led: device successfully initialized #%d.\n", ifxmips_led_major);
-
-out:
- return ret;
+ return 0;
}
static int
ifxmips_led_remove(struct platform_device *pdev)
{
- unregister_chrdev(ifxmips_led_major, "ifxmips_led");
return 0;
}
@@ -188,23 +172,6 @@ platform_driver ifxmips_led_driver = {
},
};
-/*
-Map for LED on reference board
- WLAN_READ LED11 OUT1 15
- WARNING LED12 OUT2 14
- FXS1_LINK LED13 OUT3 13
- FXS2_LINK LED14 OUT4 12
- FXO_ACT LED15 OUT5 11
- USB_LINK LED16 OUT6 10
- ADSL2_LINK LED19 OUT7 9
- BT_LINK LED17 OUT8 8
- SD_LINK LED20 OUT9 7
- ADSL2_TRAFFIC LED31 OUT16 0
-Map for hardware relay on reference board
- USB Power On OUT11 5
- RELAY OUT12 4
-*/
-
int __init
ifxmips_led_init (void)
{