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wlcore: add support macros to easily add conf debugfs entries

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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
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75
drivers/net/wireless/ti/wlcore/debugfs.c
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@ -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)
{