diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/kernel/led.c')
-rw-r--r-- | ANDROID_3.4.5/arch/sparc/kernel/led.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/kernel/led.c b/ANDROID_3.4.5/arch/sparc/kernel/led.c deleted file mode 100644 index 3ae36f36..00000000 --- a/ANDROID_3.4.5/arch/sparc/kernel/led.c +++ /dev/null @@ -1,150 +0,0 @@ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/jiffies.h> -#include <linux/timer.h> -#include <linux/uaccess.h> - -#include <asm/auxio.h> - -#define LED_MAX_LENGTH 8 /* maximum chars written to proc file */ - -static inline void led_toggle(void) -{ - unsigned char val = get_auxio(); - unsigned char on, off; - - if (val & AUXIO_LED) { - on = 0; - off = AUXIO_LED; - } else { - on = AUXIO_LED; - off = 0; - } - - set_auxio(on, off); -} - -static struct timer_list led_blink_timer; - -static void led_blink(unsigned long timeout) -{ - led_toggle(); - - /* reschedule */ - if (!timeout) { /* blink according to load */ - led_blink_timer.expires = jiffies + - ((1 + (avenrun[0] >> FSHIFT)) * HZ); - led_blink_timer.data = 0; - } else { /* blink at user specified interval */ - led_blink_timer.expires = jiffies + (timeout * HZ); - led_blink_timer.data = timeout; - } - add_timer(&led_blink_timer); -} - -static int led_proc_show(struct seq_file *m, void *v) -{ - if (get_auxio() & AUXIO_LED) - seq_puts(m, "on\n"); - else - seq_puts(m, "off\n"); - return 0; -} - -static int led_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, led_proc_show, NULL); -} - -static ssize_t led_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *ppos) -{ - char *buf = NULL; - - if (count > LED_MAX_LENGTH) - count = LED_MAX_LENGTH; - - buf = kmalloc(sizeof(char) * (count + 1), GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (copy_from_user(buf, buffer, count)) { - kfree(buf); - return -EFAULT; - } - - buf[count] = '\0'; - - /* work around \n when echo'ing into proc */ - if (buf[count - 1] == '\n') - buf[count - 1] = '\0'; - - /* before we change anything we want to stop any running timers, - * otherwise calls such as on will have no persistent effect - */ - del_timer_sync(&led_blink_timer); - - if (!strcmp(buf, "on")) { - auxio_set_led(AUXIO_LED_ON); - } else if (!strcmp(buf, "toggle")) { - led_toggle(); - } else if ((*buf > '0') && (*buf <= '9')) { - led_blink(simple_strtoul(buf, NULL, 10)); - } else if (!strcmp(buf, "load")) { - led_blink(0); - } else { - auxio_set_led(AUXIO_LED_OFF); - } - - kfree(buf); - - return count; -} - -static const struct file_operations led_proc_fops = { - .owner = THIS_MODULE, - .open = led_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = led_proc_write, -}; - -static struct proc_dir_entry *led; - -#define LED_VERSION "0.1" - -static int __init led_init(void) -{ - init_timer(&led_blink_timer); - led_blink_timer.function = led_blink; - - led = proc_create("led", 0, NULL, &led_proc_fops); - if (!led) - return -ENOMEM; - - printk(KERN_INFO - "led: version %s, Lars Kotthoff <metalhead@metalhead.ws>\n", - LED_VERSION); - - return 0; -} - -static void __exit led_exit(void) -{ - remove_proc_entry("led", NULL); - del_timer_sync(&led_blink_timer); -} - -module_init(led_init); -module_exit(led_exit); - -MODULE_AUTHOR("Lars Kotthoff <metalhead@metalhead.ws>"); -MODULE_DESCRIPTION("Provides control of the front LED on SPARC systems."); -MODULE_LICENSE("GPL"); -MODULE_VERSION(LED_VERSION); |