diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c | 115 |
1 files changed, 93 insertions, 22 deletions
diff --git a/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c b/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c index 13998ea105..cb47480a36 100644 --- a/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c +++ b/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c @@ -18,9 +18,10 @@ * */ +#include <linux/kernel.h> +#include <linux/version.h> #include <linux/module.h> #include <linux/jiffies.h> -#include <linux/kernel.h> #include <linux/init.h> #include <linux/list.h> #include <linux/spinlock.h> @@ -88,7 +89,7 @@ static inline unsigned long space_len(struct morse_trig_data *morse_data) static void morse_timer_function(unsigned long data) { - struct led_classdev *led_cdev = (struct led_classdev *) data; + struct led_classdev *led_cdev = (struct led_classdev *)data; struct morse_trig_data *morse_data = led_cdev->trigger_data; unsigned long brightness = LED_OFF; unsigned long delay = 0; @@ -144,9 +145,8 @@ set_led: led_set_brightness(led_cdev, brightness); } -static ssize_t morse_delay_show(struct class_device *dev, char *buf) +static ssize_t _morse_delay_show(struct led_classdev *led_cdev, char *buf) { - struct led_classdev *led_cdev = class_get_devdata(dev); struct morse_trig_data *morse_data = led_cdev->trigger_data; sprintf(buf, "%lu\n", morse_data->delay); @@ -154,10 +154,9 @@ static ssize_t morse_delay_show(struct class_device *dev, char *buf) return strlen(buf) + 1; } -static ssize_t morse_delay_store(struct class_device *dev, const char *buf, - size_t size) +static ssize_t _morse_delay_store(struct led_classdev *led_cdev, + const char *buf, size_t size) { - struct led_classdev *led_cdev = class_get_devdata(dev); struct morse_trig_data *morse_data = led_cdev->trigger_data; char *after; unsigned long state = simple_strtoul(buf, &after, 10); @@ -176,9 +175,8 @@ static ssize_t morse_delay_store(struct class_device *dev, const char *buf, return ret; } -static ssize_t morse_msg_show(struct class_device *dev, char *buf) +static ssize_t _morse_msg_show(struct led_classdev *led_cdev, char *buf) { - struct led_classdev *led_cdev = class_get_devdata(dev); struct morse_trig_data *morse_data = led_cdev->trigger_data; if (!morse_data->msg) @@ -189,10 +187,9 @@ static ssize_t morse_msg_show(struct class_device *dev, char *buf) return strlen(buf) + 1; } -static ssize_t morse_msg_store(struct class_device *dev, const char *buf, - size_t size) +static ssize_t _morse_msg_store(struct led_classdev *led_cdev, + const char *buf, size_t size) { - struct led_classdev *led_cdev = class_get_devdata(dev); struct morse_trig_data *morse_data = led_cdev->trigger_data; char *m; @@ -215,9 +212,88 @@ static ssize_t morse_msg_store(struct class_device *dev, const char *buf, return size; } +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) +static ssize_t morse_delay_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + return _morse_delay_show(led_cdev, buf); +} + +static ssize_t morse_delay_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + return _morse_delay_store(led_cdev, buf, size); +} + +static ssize_t morse_msg_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + return _morse_msg_show(led_cdev, buf); +} + +static ssize_t morse_msg_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + return _morse_msg_store(led_cdev, buf, size); +} + +static DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store); +static DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store); + +#define led_device_create_file(leddev, attr) \ + device_create_file(leddev->dev, &dev_attr_ ## attr) +#define led_device_remove_file(leddev, attr) \ + device_remove_file(leddev->dev, &dev_attr_ ## attr) + +#else +static ssize_t morse_delay_show(struct class_device *dev, char *buf) +{ + struct led_classdev *led_cdev = class_get_devdata(dev); + + return _morse_delay_show(led_cdev, buf); +} + +static ssize_t morse_delay_store(struct class_device *dev, const char *buf, + size_t size) +{ + struct led_classdev *led_cdev = class_get_devdata(dev); + + return _morse_delay_store(led_cdev, buf, size); +} + +static ssize_t morse_msg_show(struct class_device *dev, char *buf) +{ + struct led_classdev *led_cdev = class_get_devdata(dev); + + return _morse_msg_show(led_cdev, buf); +} + +static ssize_t morse_msg_store(struct class_device *dev, const char *buf, + size_t size) +{ + struct led_classdev *led_cdev = class_get_devdata(dev); + + return _morse_msg_store(led_cdev, buf, size); +} + static CLASS_DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store); static CLASS_DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store); +#define led_device_create_file(leddev, attr) \ + class_device_create_file(leddev->class_dev, &class_device_attr_ ## attr) +#define led_device_remove_file(leddev, attr) \ + class_device_remove_file(leddev->class_dev, &class_device_attr_ ## attr) + +#endif + static void morse_trig_activate(struct led_classdev *led_cdev) { struct morse_trig_data *morse_data; @@ -232,12 +308,10 @@ static void morse_trig_activate(struct led_classdev *led_cdev) morse_data->timer.function = morse_timer_function; morse_data->timer.data = (unsigned long)led_cdev; - rc = class_device_create_file(led_cdev->class_dev, - &class_device_attr_delay); + rc = led_device_create_file(led_cdev, delay); if (rc) goto err; - rc = class_device_create_file(led_cdev->class_dev, - &class_device_attr_message); + rc = led_device_create_file(led_cdev, message); if (rc) goto err_delay; led_cdev->trigger_data = morse_data; @@ -245,8 +319,7 @@ static void morse_trig_activate(struct led_classdev *led_cdev) return; err_delay: - class_device_remove_file(led_cdev->class_dev, - &class_device_attr_delay); + led_device_remove_file(led_cdev, delay); err: kfree(morse_data); } @@ -258,10 +331,8 @@ static void morse_trig_deactivate(struct led_classdev *led_cdev) if (!morse_data) return; - class_device_remove_file(led_cdev->class_dev, - &class_device_attr_message); - class_device_remove_file(led_cdev->class_dev, - &class_device_attr_delay); + led_device_remove_file(led_cdev, message); + led_device_remove_file(led_cdev, delay); del_timer_sync(&morse_data->timer); if (morse_data->msg) |