/* * This file is part of wl1271 * * Copyright (C) 2009 Nokia Corporation * * Contact: Luciano Coelho * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include "debugfs.h" #include #include #include #include "wlcore.h" #include "debug.h" #include "acx.h" #include "ps.h" #include "io.h" #include "tx.h" #include "hw_ops.h" /* ms */ #define WL1271_DEBUGFS_STATS_LIFETIME 1000 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE)) /* debugfs macros idea from mac80211 */ int wl1271_format_buffer(char __user *userbuf, size_t count, loff_t *ppos, char *fmt, ...) { va_list args; char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; int res; va_start(args, fmt); res = vscnprintf(buf, sizeof(buf), fmt, args); va_end(args); return simple_read_from_buffer(userbuf, count, ppos, buf, res); } EXPORT_SYMBOL_GPL(wl1271_format_buffer); void wl1271_debugfs_update_stats(struct wl1271 *wl) { int ret; mutex_lock(&wl->mutex); if (unlikely(wl->state != WLCORE_STATE_ON)) goto out; ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; if (!wl->plt && time_after(jiffies, wl->stats.fw_stats_update + msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) { wl1271_acx_statistics(wl, wl->stats.fw_stats); wl->stats.fw_stats_update = jiffies; } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); } EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats); DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count); DEBUGFS_READONLY_FILE(excessive_retries, "%u", wl->stats.excessive_retries); static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; u32 queue_len; char buf[20]; int res; queue_len = wl1271_tx_total_queue_count(wl); res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); return simple_read_from_buffer(userbuf, count, ppos, buf, res); } static const struct file_operations tx_queue_len_ops = { .read = tx_queue_len_read, .open = simple_open, .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, \ }; WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535, chip_op_handler, wl1271_acx_init_rx_interrupt) WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535, chip_op_handler, wl1271_acx_init_rx_interrupt) WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100, chip_op_handler, wl1271_acx_init_rx_interrupt) static ssize_t gpio_power_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); int res; char buf[10]; res = scnprintf(buf, sizeof(buf), "%d\n", state); return simple_read_from_buffer(user_buf, count, ppos, buf, res); } static ssize_t gpio_power_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 in gpio_power"); return -EINVAL; } mutex_lock(&wl->mutex); if (value) wl1271_power_on(wl); else wl1271_power_off(wl); mutex_unlock(&wl->mutex); return count; } static const struct file_operations gpio_power_ops = { .read = gpio_power_read, .write = gpio_power_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t start_recovery_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; mutex_lock(&wl->mutex); wl12xx_queue_recovery_work(wl); mutex_unlock(&wl->mutex); return count; } static const struct file_operations start_recovery_ops = { .write = start_recovery_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t dynamic_ps_timeout_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.conn.dynamic_ps_timeout); } static ssize_t dynamic_ps_timeout_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; unsigned long value; int ret; ret = kstrtoul_from_user(user_buf, count, 10, &value); if (ret < 0) { wl1271_warning("illegal value in dynamic_ps"); return -EINVAL; } if (value < 1 || value > 65535) { wl1271_warning("dyanmic_ps_timeout is not in valid range"); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.conn.dynamic_ps_timeout = value; if (unlikely(wl->state != WLCORE_STATE_ON)) goto out; ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; /* In case we're already in PSM, trigger it again to set new timeout * immediately without waiting for re-association */ wl12xx_for_each_wlvif_sta(wl, wlvif) { if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE); } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static const struct file_operations dynamic_ps_timeout_ops = { .read = dynamic_ps_timeout_read, .write = dynamic_ps_timeout_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t forced_ps_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.conn.forced_ps); } static ssize_t forced_ps_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; unsigned long value; int ret, ps_mode; ret = kstrtoul_from_user(user_buf, count, 10, &value); if (ret < 0) { wl1271_warning("illegal value in forced_ps"); return -EINVAL; } if (value != 1 && value != 0) { wl1271_warning("forced_ps should be either 0 or 1"); return -ERANGE; } mutex_lock(&wl->mutex); if (wl->conf.conn.forced_ps == value) goto out; wl->conf.conn.forced_ps = value; if (unlikely(wl->state != WLCORE_STATE_ON)) goto out; ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; /* In case we're already in PSM, trigger it again to switch mode * immediately without waiting for re-association */ ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE; wl12xx_for_each_wlvif_sta(wl, wlvif) { if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) wl1271_ps_set_mode(wl, wlvif, ps_mode); } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static const struct file_operations forced_ps_ops = { .read = forced_ps_read, .write = forced_ps_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t split_scan_timeout_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.scan.split_scan_timeout / 1000); } static ssize_t split_scan_timeout_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 in split_scan_timeout"); return -EINVAL; } if (value == 0) wl1271_info("split scan will be disabled"); mutex_lock(&wl->mutex); wl->conf.scan.split_scan_timeout = value * 1000; mutex_unlock(&wl->mutex); return count; } static const struct file_operations split_scan_timeout_ops = { .read = split_scan_timeout_read, .write = split_scan_timeout_write, .open = simple_open, .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; ssize_t ret; char *buf; struct wl12xx_vif *wlvif; #define DRIVER_STATE_BUF_LEN 1024 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL); if (!buf) return -ENOMEM; mutex_lock(&wl->mutex); #define DRIVER_STATE_PRINT(x, fmt) \ (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ #x " = " fmt "\n", wl->x)) #define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...) \ (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ #x " = " fmt "\n", args)) #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") wl12xx_for_each_wlvif_sta(wl, wlvif) { if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) continue; DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel, wlvif->p2p ? "P2P-CL" : "STA"); } wl12xx_for_each_wlvif_ap(wl, wlvif) DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel, wlvif->p2p ? "P2P-GO" : "AP"); DRIVER_STATE_PRINT_INT(tx_blocks_available); DRIVER_STATE_PRINT_INT(tx_allocated_blocks); DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]); DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]); DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]); DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]); DRIVER_STATE_PRINT_INT(tx_frames_cnt); DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]); DRIVER_STATE_PRINT_INT(tx_queue_count[0]); DRIVER_STATE_PRINT_INT(tx_queue_count[1]); DRIVER_STATE_PRINT_INT(tx_queue_count[2]); DRIVER_STATE_PRINT_INT(tx_queue_count[3]); 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); DRIVER_STATE_PRINT_INT(rx_counter); DRIVER_STATE_PRINT_INT(state); DRIVER_STATE_PRINT_INT(band); DRIVER_STATE_PRINT_INT(power_level); DRIVER_STATE_PRINT_INT(sg_enabled); DRIVER_STATE_PRINT_INT(enable_11a); DRIVER_STATE_PRINT_INT(noise); DRIVER_STATE_PRINT_LHEX(ap_fw_ps_map); DRIVER_STATE_PRINT_LHEX(ap_ps_map); DRIVER_STATE_PRINT_HEX(quirks); DRIVER_STATE_PRINT_HEX(irq); /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */ 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); DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str); DRIVER_STATE_PRINT_INT(recovery_count); #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 #undef DRIVER_STATE_BUF_LEN mutex_unlock(&wl->mutex); ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); kfree(buf); return ret; } static const struct file_operations driver_state_ops = { .read = driver_state_read, .open = simple_open, .llseek = default_llseek, }; static ssize_t vifs_state_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; int ret, res = 0; const int buf_size = 4096; char *buf; char tmp_buf[64]; buf = kzalloc(buf_size, GFP_KERNEL); if (!buf) return -ENOMEM; mutex_lock(&wl->mutex); #define VIF_STATE_PRINT(x, fmt) \ (res += scnprintf(buf + res, buf_size - res, \ #x " = " fmt "\n", wlvif->x)) #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld") #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d") #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s") #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx") #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx") #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x") #define VIF_STATE_PRINT_NSTR(x, len) \ do { \ memset(tmp_buf, 0, sizeof(tmp_buf)); \ memcpy(tmp_buf, wlvif->x, \ min_t(u8, len, sizeof(tmp_buf) - 1)); \ res += scnprintf(buf + res, buf_size - res, \ #x " = %s\n", tmp_buf); \ } while (0) wl12xx_for_each_wlvif(wl, wlvif) { VIF_STATE_PRINT_INT(role_id); VIF_STATE_PRINT_INT(bss_type); VIF_STATE_PRINT_LHEX(flags); VIF_STATE_PRINT_INT(p2p); VIF_STATE_PRINT_INT(dev_role_id); VIF_STATE_PRINT_INT(dev_hlid); if (wlvif->bss_type == BSS_TYPE_STA_BSS || wlvif->bss_type == BSS_TYPE_IBSS) { VIF_STATE_PRINT_INT(sta.hlid); VIF_STATE_PRINT_INT(sta.basic_rate_idx); VIF_STATE_PRINT_INT(sta.ap_rate_idx); VIF_STATE_PRINT_INT(sta.p2p_rate_idx); VIF_STATE_PRINT_INT(sta.qos); } else { VIF_STATE_PRINT_INT(ap.global_hlid); VIF_STATE_PRINT_INT(ap.bcast_hlid); VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]); VIF_STATE_PRINT_INT(ap.mgmt_rate_idx); VIF_STATE_PRINT_INT(ap.bcast_rate_idx); VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]); VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]); VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]); VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]); } VIF_STATE_PRINT_INT(last_tx_hlid); VIF_STATE_PRINT_INT(tx_queue_count[0]); VIF_STATE_PRINT_INT(tx_queue_count[1]); VIF_STATE_PRINT_INT(tx_queue_count[2]); VIF_STATE_PRINT_INT(tx_queue_count[3]); VIF_STATE_PRINT_LHEX(links_map[0]); VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); VIF_STATE_PRINT_INT(band); VIF_STATE_PRINT_INT(channel); VIF_STATE_PRINT_HEX(bitrate_masks[0]); VIF_STATE_PRINT_HEX(bitrate_masks[1]); VIF_STATE_PRINT_HEX(basic_rate_set); VIF_STATE_PRINT_HEX(basic_rate); VIF_STATE_PRINT_HEX(rate_set); VIF_STATE_PRINT_INT(beacon_int); VIF_STATE_PRINT_INT(default_key); VIF_STATE_PRINT_INT(aid); VIF_STATE_PRINT_INT(psm_entry_retry); VIF_STATE_PRINT_INT(power_level); VIF_STATE_PRINT_INT(rssi_thold); VIF_STATE_PRINT_INT(last_rssi_event); VIF_STATE_PRINT_INT(ba_support); VIF_STATE_PRINT_INT(ba_allowed); VIF_STATE_PRINT_LLHEX(total_freed_pkts); } #undef VIF_STATE_PRINT_INT #undef VIF_STATE_PRINT_LONG #undef VIF_STATE_PRINT_HEX #undef VIF_STATE_PRINT_LHEX #undef VIF_STATE_PRINT_LLHEX #undef VIF_STATE_PRINT_STR #undef VIF_STATE_PRINT_NSTR #undef VIF_STATE_PRINT mutex_unlock(&wl->mutex); ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); kfree(buf); return ret; } static const struct file_operations vifs_state_ops = { .read = vifs_state_read, .open = simple_open, .llseek = default_llseek, }; static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; u8 value; if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) value = wl->conf.conn.listen_interval; else value = 0; return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); } static ssize_t dtim_interval_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 dtim_interval"); return -EINVAL; } if (value < 1 || value > 10) { wl1271_warning("dtim value is not in valid range"); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.conn.listen_interval = value; /* for some reason there are different event types for 1 and >1 */ if (value == 1) wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; else wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; /* * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only * take effect on the next time we enter psm. */ mutex_unlock(&wl->mutex); return count; } static const struct file_operations dtim_interval_ops = { .read = dtim_interval_read, .write = dtim_interval_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t suspend_dtim_interval_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; u8 value; if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) value = wl->conf.conn.suspend_listen_interval; else value = 0; return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); } static ssize_t suspend_dtim_interval_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 suspend_dtim_interval"); return -EINVAL; } if (value < 1 || value > 10) { wl1271_warning("suspend_dtim value is not in valid range"); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.conn.suspend_listen_interval = value; /* for some reason there are different event types for 1 and >1 */ if (value == 1) wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; else wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; mutex_unlock(&wl->mutex); return count; } static const struct file_operations suspend_dtim_interval_ops = { .read = suspend_dtim_interval_read, .write = suspend_dtim_interval_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; u8 value; if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) value = wl->conf.conn.listen_interval; else value = 0; return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); } static ssize_t beacon_interval_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 beacon_interval"); return -EINVAL; } if (value < 1 || value > 255) { wl1271_warning("beacon interval value is not in valid range"); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.conn.listen_interval = value; /* for some reason there are different event types for 1 and >1 */ if (value == 1) wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; else wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; /* * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only * take effect on the next time we enter psm. */ mutex_unlock(&wl->mutex); return count; } static const struct file_operations beacon_interval_ops = { .read = beacon_interval_read, .write = beacon_interval_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t rx_streaming_interval_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; unsigned long value; int ret; ret = kstrtoul_from_user(user_buf, count, 10, &value); if (ret < 0) { wl1271_warning("illegal value in rx_streaming_interval!"); return -EINVAL; } /* valid values: 0, 10-100 */ if (value && (value < 10 || value > 100)) { wl1271_warning("value is not in range!"); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.rx_streaming.interval = value; ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; wl12xx_for_each_wlvif_sta(wl, wlvif) { wl1271_recalc_rx_streaming(wl, wlvif); } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static ssize_t rx_streaming_interval_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; return wl1271_format_buffer(userbuf, count, ppos, "%d\n", wl->conf.rx_streaming.interval); } static const struct file_operations rx_streaming_interval_ops = { .read = rx_streaming_interval_read, .write = rx_streaming_interval_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t rx_streaming_always_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; unsigned long value; int ret; ret = kstrtoul_from_user(user_buf, count, 10, &value); if (ret < 0) { wl1271_warning("illegal value in rx_streaming_write!"); return -EINVAL; } /* valid values: 0, 10-100 */ if (!(value == 0 || value == 1)) { wl1271_warning("value is not in valid!"); return -EINVAL; } mutex_lock(&wl->mutex); wl->conf.rx_streaming.always = value; ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; wl12xx_for_each_wlvif_sta(wl, wlvif) { wl1271_recalc_rx_streaming(wl, wlvif); } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static ssize_t rx_streaming_always_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; return wl1271_format_buffer(userbuf, count, ppos, "%d\n", wl->conf.rx_streaming.always); } static const struct file_operations rx_streaming_always_ops = { .read = rx_streaming_always_read, .write = rx_streaming_always_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t beacon_filtering_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wl12xx_vif *wlvif; unsigned long value; int ret; ret = kstrtoul_from_user(user_buf, count, 0, &value); if (ret < 0) { wl1271_warning("illegal value for beacon_filtering!"); return -EINVAL; } mutex_lock(&wl->mutex); ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; wl12xx_for_each_wlvif(wl, wlvif) { ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); } wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static const struct file_operations beacon_filtering_ops = { .write = beacon_filtering_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t fw_stats_raw_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; wl1271_debugfs_update_stats(wl); return simple_read_from_buffer(userbuf, count, ppos, wl->stats.fw_stats, wl->stats.fw_stats_len); } static const struct file_operations fw_stats_raw_ops = { .read = fw_stats_raw_read, .open = simple_open, .llseek = default_llseek, }; static ssize_t sleep_auth_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->sleep_auth); } static ssize_t sleep_auth_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, 0, &value); if (ret < 0) { wl1271_warning("illegal value in sleep_auth"); return -EINVAL; } if (value > WL1271_PSM_MAX) { wl1271_warning("sleep_auth must be between 0 and %d", WL1271_PSM_MAX); return -ERANGE; } mutex_lock(&wl->mutex); wl->conf.conn.sta_sleep_auth = value; if (unlikely(wl->state != WLCORE_STATE_ON)) { /* this will show up on "read" in case we are off */ wl->sleep_auth = value; goto out; } ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; ret = wl1271_acx_sleep_auth(wl, value); if (ret < 0) goto out_sleep; out_sleep: wl1271_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return count; } static const struct file_operations sleep_auth_ops = { .read = sleep_auth_read, .write = sleep_auth_write, .open = simple_open, .llseek = default_llseek, }; static ssize_t dev_mem_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wlcore_partition_set part, old_part; size_t bytes = count; int ret; char *buf; /* only requests of dword-aligned size and offset are supported */ if (bytes % 4) return -EINVAL; if (*ppos % 4) return -EINVAL; /* function should return in reasonable time */ bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); if (bytes == 0) return -EINVAL; memset(&part, 0, sizeof(part)); part.mem.start = *ppos; part.mem.size = bytes; buf = kmalloc(bytes, GFP_KERNEL); if (!buf) return -ENOMEM; mutex_lock(&wl->mutex); if (unlikely(wl->state == WLCORE_STATE_OFF)) { ret = -EFAULT; goto skip_read; } /* * Don't fail if elp_wakeup returns an error, so the device's memory * could be read even if the FW crashed */ wl1271_ps_elp_wakeup(wl); /* store current partition and switch partition */ memcpy(&old_part, &wl->curr_part, sizeof(old_part)); ret = wlcore_set_partition(wl, &part); if (ret < 0) goto part_err; ret = wlcore_raw_read(wl, 0, buf, bytes, false); if (ret < 0) goto read_err; read_err: /* recover partition */ ret = wlcore_set_partition(wl, &old_part); if (ret < 0) goto part_err; part_err: wl1271_ps_elp_sleep(wl); skip_read: mutex_unlock(&wl->mutex); if (ret == 0) { ret = copy_to_user(user_buf, buf, bytes); if (ret < bytes) { bytes -= ret; *ppos += bytes; ret = 0; } else { ret = -EFAULT; } } kfree(buf); return ((ret == 0) ? bytes : ret); } static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct wl1271 *wl = file->private_data; struct wlcore_partition_set part, old_part; size_t bytes = count; int ret; char *buf; /* only requests of dword-aligned size and offset are supported */ if (bytes % 4) return -EINVAL; if (*ppos % 4) return -EINVAL; /* function should return in reasonable time */ bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); if (bytes == 0) return -EINVAL; memset(&part, 0, sizeof(part)); part.mem.start = *ppos; part.mem.size = bytes; buf = kmalloc(bytes, GFP_KERNEL); if (!buf) return -ENOMEM; ret = copy_from_user(buf, user_buf, bytes); if (ret) { ret = -EFAULT; goto err_out; } mutex_lock(&wl->mutex); if (unlikely(wl->state == WLCORE_STATE_OFF)) { ret = -EFAULT; goto skip_write; } /* * Don't fail if elp_wakeup returns an error, so the device's memory * could be read even if the FW crashed */ wl1271_ps_elp_wakeup(wl); /* store current partition and switch partition */ memcpy(&old_part, &wl->curr_part, sizeof(old_part)); ret = wlcore_set_partition(wl, &part); if (ret < 0) goto part_err; ret = wlcore_raw_write(wl, 0, buf, bytes, false); if (ret < 0) goto write_err; write_err: /* recover partition */ ret = wlcore_set_partition(wl, &old_part); if (ret < 0) goto part_err; part_err: wl1271_ps_elp_sleep(wl); skip_write: mutex_unlock(&wl->mutex); if (ret == 0) *ppos += bytes; err_out: kfree(buf); return ((ret == 0) ? bytes : ret); } static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) { loff_t ret; /* only requests of dword-aligned size and offset are supported */ if (offset % 4) return -EINVAL; switch (orig) { case SEEK_SET: file->f_pos = offset; ret = file->f_pos; break; case SEEK_CUR: file->f_pos += offset; ret = file->f_pos; break; default: ret = -EINVAL; } return ret; } static const struct file_operations dev_mem_ops = { .open = simple_open, .read = dev_mem_read, .write = dev_mem_write, .llseek = dev_mem_seek, }; static int wl1271_debugfs_add_files(struct wl1271 *wl, struct dentry *rootdir) { int ret = 0; struct dentry *entry, *streaming; DEBUGFS_ADD(tx_queue_len, rootdir); DEBUGFS_ADD(retry_count, rootdir); DEBUGFS_ADD(excessive_retries, rootdir); DEBUGFS_ADD(gpio_power, rootdir); DEBUGFS_ADD(start_recovery, rootdir); DEBUGFS_ADD(driver_state, rootdir); DEBUGFS_ADD(vifs_state, rootdir); DEBUGFS_ADD(dtim_interval, rootdir); DEBUGFS_ADD(suspend_dtim_interval, rootdir); DEBUGFS_ADD(beacon_interval, rootdir); DEBUGFS_ADD(beacon_filtering, rootdir); DEBUGFS_ADD(dynamic_ps_timeout, rootdir); DEBUGFS_ADD(forced_ps, rootdir); DEBUGFS_ADD(split_scan_timeout, rootdir); DEBUGFS_ADD(irq_pkt_threshold, rootdir); DEBUGFS_ADD(irq_blk_threshold, rootdir); DEBUGFS_ADD(irq_timeout, rootdir); DEBUGFS_ADD(fw_stats_raw, rootdir); DEBUGFS_ADD(sleep_auth, rootdir); streaming = debugfs_create_dir("rx_streaming", rootdir); if (!streaming || IS_ERR(streaming)) goto err; DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); DEBUGFS_ADD_PREFIX(dev, mem, rootdir); return 0; err: if (IS_ERR(entry)) ret = PTR_ERR(entry); else ret = -ENOMEM; return ret; } void wl1271_debugfs_reset(struct wl1271 *wl) { if (!wl->stats.fw_stats) return; memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); wl->stats.retry_count = 0; wl->stats.excessive_retries = 0; } int wl1271_debugfs_init(struct wl1271 *wl) { int ret; struct dentry *rootdir; rootdir = debugfs_create_dir(KBUILD_MODNAME, wl->hw->wiphy->debugfsdir); if (IS_ERR(rootdir)) { ret = PTR_ERR(rootdir); goto out; } wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); if (!wl->stats.fw_stats) { ret = -ENOMEM; goto out_remove; } wl->stats.fw_stats_update = jiffies; ret = wl1271_debugfs_add_files(wl, rootdir); if (ret < 0) goto out_exit; ret = wlcore_debugfs_init(wl, rootdir); if (ret < 0) goto out_exit; goto out; out_exit: wl1271_debugfs_exit(wl); out_remove: debugfs_remove_recursive(rootdir); out: return ret; } void wl1271_debugfs_exit(struct wl1271 *wl) { kfree(wl->stats.fw_stats); wl->stats.fw_stats = NULL; }