Commit 2d66bee7 authored by Arik Nemtsov's avatar Arik Nemtsov Committed by Luciano Coelho

wl12xx: export driver state to debugfs

By reading the "driver_state" debugfs value we get all the important
state information from the wl12xx driver. This helps testing and
debugging, particularly in situations where the driver seems "stuck".
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
parent 7dece1c8
......@@ -310,6 +310,92 @@ static const struct file_operations start_recovery_ops = {
.llseek = default_llseek,
};
static ssize_t driver_state_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
int res = 0;
char buf[1024];
mutex_lock(&wl->mutex);
#define DRIVER_STATE_PRINT(x, fmt) \
(res += scnprintf(buf + res, sizeof(buf) - res,\
#x " = " fmt "\n", wl->x))
#define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
#define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
#define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
#define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
#define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
DRIVER_STATE_PRINT_INT(tx_blocks_available);
DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
DRIVER_STATE_PRINT_INT(tx_frames_cnt);
DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
DRIVER_STATE_PRINT_INT(tx_queue_count);
DRIVER_STATE_PRINT_INT(tx_packets_count);
DRIVER_STATE_PRINT_INT(tx_results_count);
DRIVER_STATE_PRINT_LHEX(flags);
DRIVER_STATE_PRINT_INT(tx_blocks_freed[0]);
DRIVER_STATE_PRINT_INT(tx_blocks_freed[1]);
DRIVER_STATE_PRINT_INT(tx_blocks_freed[2]);
DRIVER_STATE_PRINT_INT(tx_blocks_freed[3]);
DRIVER_STATE_PRINT_INT(tx_security_last_seq);
DRIVER_STATE_PRINT_INT(rx_counter);
DRIVER_STATE_PRINT_INT(session_counter);
DRIVER_STATE_PRINT_INT(state);
DRIVER_STATE_PRINT_INT(bss_type);
DRIVER_STATE_PRINT_INT(channel);
DRIVER_STATE_PRINT_HEX(rate_set);
DRIVER_STATE_PRINT_HEX(basic_rate_set);
DRIVER_STATE_PRINT_HEX(basic_rate);
DRIVER_STATE_PRINT_INT(band);
DRIVER_STATE_PRINT_INT(beacon_int);
DRIVER_STATE_PRINT_INT(psm_entry_retry);
DRIVER_STATE_PRINT_INT(ps_poll_failures);
DRIVER_STATE_PRINT_HEX(filters);
DRIVER_STATE_PRINT_HEX(rx_config);
DRIVER_STATE_PRINT_HEX(rx_filter);
DRIVER_STATE_PRINT_INT(power_level);
DRIVER_STATE_PRINT_INT(rssi_thold);
DRIVER_STATE_PRINT_INT(last_rssi_event);
DRIVER_STATE_PRINT_INT(sg_enabled);
DRIVER_STATE_PRINT_INT(enable_11a);
DRIVER_STATE_PRINT_INT(noise);
DRIVER_STATE_PRINT_LHEX(ap_hlid_map[0]);
DRIVER_STATE_PRINT_INT(last_tx_hlid);
DRIVER_STATE_PRINT_INT(ba_support);
DRIVER_STATE_PRINT_HEX(ba_rx_bitmap);
DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
DRIVER_STATE_PRINT_LHEX(ap_ps_map);
DRIVER_STATE_PRINT_HEX(quirks);
DRIVER_STATE_PRINT_HEX(irq);
DRIVER_STATE_PRINT_HEX(ref_clock);
DRIVER_STATE_PRINT_HEX(tcxo_clock);
DRIVER_STATE_PRINT_HEX(hw_pg_ver);
DRIVER_STATE_PRINT_HEX(platform_quirks);
DRIVER_STATE_PRINT_HEX(chip.id);
DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
#undef DRIVER_STATE_PRINT_INT
#undef DRIVER_STATE_PRINT_LONG
#undef DRIVER_STATE_PRINT_HEX
#undef DRIVER_STATE_PRINT_LHEX
#undef DRIVER_STATE_PRINT_STR
#undef DRIVER_STATE_PRINT
mutex_unlock(&wl->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}
static const struct file_operations driver_state_ops = {
.read = driver_state_read,
.open = wl1271_open_file_generic,
.llseek = default_llseek,
};
static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
......@@ -549,6 +635,7 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(gpio_power, rootdir);
DEBUGFS_ADD(start_recovery, rootdir);
DEBUGFS_ADD(driver_state, rootdir);
DEBUGFS_ADD(dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
......
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