dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

wlcore: add support macros to easily add conf debugfs entries 

The current debugfs code contains too much code duplication
of bolierplate code. Add some macro magic to avoid this and
enable adding new debugfs entries by using just a few lines.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Eyal Shapira 2012-06-07 23:39:20 +03:00 committed by Luciano Coelho
parent e16de2c4fc
commit bc8e261233
1 changed files with 75 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
drivers/net/wireless/ti/wlcore/debugfs.c
View File

@ -102,6 +102,81 @@ static const struct file_operations tx_queue_len_ops = {
.llseek = default_llseek,
};
static void chip_op_handler(struct wl1271 *wl, unsigned long value,
void *arg)
{
int ret;
int (*chip_op) (struct wl1271 *wl);
if (!arg) {
wl1271_warning("debugfs chip_op_handler with no callback");
return;
}
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
return;
chip_op = arg;
chip_op(wl);
wl1271_ps_elp_sleep(wl);
}
static inline void no_write_handler(struct wl1271 *wl,
unsigned long value,
unsigned long param)
{
}
#define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \
min_val, max_val, write_handler_locked, \
write_handler_arg) \
static ssize_t param##_read(struct file *file, \
char __user *user_buf, \
size_t count, loff_t *ppos) \
{ \
struct wl1271 *wl = file->private_data; \
return wl1271_format_buffer(user_buf, count, \
ppos, "%d\n", \
wl->conf.conf_sub_struct.param); \
} \
\
static ssize_t param##_write(struct file *file, \
const char __user *user_buf, \
size_t count, loff_t *ppos) \
{ \
struct wl1271 *wl = file->private_data; \
unsigned long value; \
int ret; \
\
ret = kstrtoul_from_user(user_buf, count, 10, &value); \
if (ret < 0) { \
wl1271_warning("illegal value for " #param); \
return -EINVAL; \
} \
\
if (value < min_val || value > max_val) { \
wl1271_warning(#param " is not in valid range"); \
return -ERANGE; \
} \
\
mutex_lock(&wl->mutex); \
wl->conf.conf_sub_struct.param = value; \
\
write_handler_locked(wl, value, write_handler_arg); \
\
mutex_unlock(&wl->mutex); \
return count; \
} \
\
static const struct file_operations param##_ops = { \
.read = param##_read, \
.write = param##_write, \
.open = simple_open, \
.llseek = default_llseek, \
};
static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{