#include <linux/types.h>
#include <linux/fs.h>
#include <linux/init.h>
+#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include <asm/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 IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
+#define DRVNAME "ifxmips_led"
+
+#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING
//#define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_RISING
#define IFXMIPS_LED_SPEED IFXMIPS_LED_8HZ
-#define IFXMIPS_LED_GPIO_PORT 0
+#define IFXMIPS_LED_GPIO_PORT 0
+
+#define IFXMIPS_MAX_LED 24
-static int ifxmips_led_major;
+struct ifxmips_led {
+ struct led_classdev cdev;
+ u8 bit;
+};
void
ifxmips_led_set (unsigned int led)
{
led &= 0xffffff;
- writel(readl(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_set);
ifxmips_led_clear (unsigned int led)
{
led = ~(led & 0xffffff);
- writel(readl(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_clear);
ifxmips_led_blink_set (unsigned int led)
{
led &= 0xffffff;
- writel(readl(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
+ ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
}
EXPORT_SYMBOL(ifxmips_led_blink_set);
ifxmips_led_blink_clear (unsigned int led)
{
led = ~(led & 0xffffff);
- writel(readl(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
+ 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)
+{
+ 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)
{
}
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
-};
-
-
-/*
-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)
+ifxmips_led_probe(struct platform_device *dev)
{
- int ret = 0;
+ int i = 0;
ifxmips_led_setup_gpio();
- writel(0, IFXMIPS_LED_AR);
- writel(0, IFXMIPS_LED_CPU0);
- writel(0, IFXMIPS_LED_CPU1);
- writel(LED_CON0_SWU, IFXMIPS_LED_CON0);
- writel(0, IFXMIPS_LED_CON1);
+ ifxmips_w32(0, IFXMIPS_LED_AR);
+ ifxmips_w32(0, IFXMIPS_LED_CPU0);
+ ifxmips_w32(0, IFXMIPS_LED_CPU1);
+ ifxmips_w32(LED_CON0_SWU, IFXMIPS_LED_CON0);
+ ifxmips_w32(0, IFXMIPS_LED_CON1);
/* setup the clock edge that the shift register is triggered on */
- writel(readl(IFXMIPS_LED_CON0) & ~IFXMIPS_LED_EDGE_MASK, IFXMIPS_LED_CON0);
- writel(readl(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 */
- writel(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
+ ifxmips_w32(IFXMIPS_LED_GROUP1 | IFXMIPS_LED_GROUP0, IFXMIPS_LED_CON1);
/* leds are update periodically by the FPID */
- writel(readl(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_UPD_MASK, IFXMIPS_LED_CON1);
- writel(readl(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 */
- writel(readl(IFXMIPS_LED_CON1) & ~IFXMIPS_LED_MASK, IFXMIPS_LED_CON1);
- writel(readl(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 */
- writel(readl(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);
- 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 registered on major %d\n", ifxmips_led_major);
+ return 0;
+}
+
+static int
+ifxmips_led_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct
+platform_driver ifxmips_led_driver = {
+ .probe = ifxmips_led_probe,
+ .remove = ifxmips_led_remove,
+ .driver = {
+ .name = DRVNAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+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!");
-out:
return ret;
}
void __exit
ifxmips_led_exit (void)
{
- unregister_chrdev(ifxmips_led_major, "ifxmips_led");
+ platform_driver_unregister(&ifxmips_led_driver);
}
module_init(ifxmips_led_init);