| /* |
| * Copyright (c) 2013-2017 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| /** |
| * DOC: wlan_hdd_debugfs.c |
| * |
| * This driver currently supports the following debugfs files: |
| * wlan_wcnss/wow_enable to enable/disable WoWL. |
| * wlan_wcnss/wow_pattern to configure WoWL patterns. |
| * wlan_wcnss/pattern_gen to configure periodic TX patterns. |
| */ |
| |
| #ifdef WLAN_OPEN_SOURCE |
| #include <wlan_hdd_includes.h> |
| #include <wlan_hdd_debugfs.h> |
| #include <wlan_hdd_request_manager.h> |
| #include <wlan_hdd_wowl.h> |
| #include <cds_sched.h> |
| |
| #define MAX_USER_COMMAND_SIZE_WOWL_ENABLE 8 |
| #define MAX_USER_COMMAND_SIZE_WOWL_PATTERN 512 |
| #define MAX_USER_COMMAND_SIZE_FRAME 4096 |
| |
| #ifdef WLAN_POWER_DEBUGFS |
| #define POWER_DEBUGFS_BUFFER_MAX_LEN 4096 |
| #endif |
| |
| /** |
| * __wcnss_wowenable_write() - wow_enable debugfs handler |
| * @file: debugfs file handle |
| * @buf: text being written to the debugfs |
| * @count: size of @buf |
| * @ppos: (unused) offset into the virtual file system |
| * |
| * Return: number of bytes processed |
| */ |
| static ssize_t __wcnss_wowenable_write(struct file *file, |
| const char __user *buf, size_t count, |
| loff_t *ppos) |
| { |
| hdd_adapter_t *pAdapter; |
| hdd_context_t *hdd_ctx; |
| char cmd[MAX_USER_COMMAND_SIZE_WOWL_ENABLE + 1]; |
| char *sptr, *token; |
| uint8_t wow_enable = 0; |
| uint8_t wow_mp = 0; |
| uint8_t wow_pbm = 0; |
| int ret; |
| |
| ENTER(); |
| |
| pAdapter = (hdd_adapter_t *)file->private_data; |
| if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic)) { |
| hdd_alert("Invalid adapter or adapter has invalid magic."); |
| |
| return -EINVAL; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(pAdapter); |
| ret = wlan_hdd_validate_context(hdd_ctx); |
| if (0 != ret) |
| return ret; |
| |
| |
| if (!sme_is_feature_supported_by_fw(WOW)) { |
| hdd_err("Wake-on-Wireless feature is not supported in firmware!"); |
| |
| return -EINVAL; |
| } |
| |
| if (count > MAX_USER_COMMAND_SIZE_WOWL_ENABLE) { |
| hdd_err("Command length is larger than %d bytes.", |
| MAX_USER_COMMAND_SIZE_WOWL_ENABLE); |
| |
| return -EINVAL; |
| } |
| |
| /* Get command from user */ |
| if (copy_from_user(cmd, buf, count)) |
| return -EFAULT; |
| cmd[count] = '\0'; |
| sptr = cmd; |
| |
| /* Get enable or disable wow */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| if (kstrtou8(token, 0, &wow_enable)) |
| return -EINVAL; |
| |
| /* Disable wow */ |
| if (!wow_enable) { |
| if (!hdd_exit_wowl(pAdapter)) { |
| hdd_err("hdd_exit_wowl failed!"); |
| |
| return -EFAULT; |
| } |
| |
| return count; |
| } |
| |
| /* Get enable or disable magic packet mode */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| if (kstrtou8(token, 0, &wow_mp)) |
| return -EINVAL; |
| if (wow_mp > 1) |
| wow_mp = 1; |
| |
| /* Get enable or disable pattern byte matching mode */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| if (kstrtou8(token, 0, &wow_pbm)) |
| return -EINVAL; |
| if (wow_pbm > 1) |
| wow_pbm = 1; |
| |
| if (!hdd_enter_wowl(pAdapter, wow_mp, wow_pbm)) { |
| hdd_err("hdd_enter_wowl failed!"); |
| |
| return -EFAULT; |
| } |
| EXIT(); |
| return count; |
| } |
| |
| /** |
| * wcnss_wowenable_write() - SSR wrapper for wcnss_wowenable_write |
| * @file: file pointer |
| * @buf: buffer |
| * @count: count |
| * @ppos: position pointer |
| * |
| * Return: 0 on success, error number otherwise |
| */ |
| static ssize_t wcnss_wowenable_write(struct file *file, |
| const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| ssize_t ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wcnss_wowenable_write(file, buf, count, ppos); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wcnss_wowpattern_write() - wow_pattern debugfs handler |
| * @file: debugfs file handle |
| * @buf: text being written to the debugfs |
| * @count: size of @buf |
| * @ppos: (unused) offset into the virtual file system |
| * |
| * Return: number of bytes processed |
| */ |
| static ssize_t __wcnss_wowpattern_write(struct file *file, |
| const char __user *buf, size_t count, |
| loff_t *ppos) |
| { |
| hdd_adapter_t *pAdapter = (hdd_adapter_t *) file->private_data; |
| hdd_context_t *hdd_ctx; |
| char cmd[MAX_USER_COMMAND_SIZE_WOWL_PATTERN + 1]; |
| char *sptr, *token; |
| uint8_t pattern_idx = 0; |
| uint8_t pattern_offset = 0; |
| char *pattern_buf; |
| char *pattern_mask; |
| int ret; |
| |
| ENTER(); |
| |
| if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic)) { |
| hdd_alert("Invalid adapter or adapter has invalid magic."); |
| |
| return -EINVAL; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(pAdapter); |
| ret = wlan_hdd_validate_context(hdd_ctx); |
| if (0 != ret) |
| return ret; |
| |
| if (!sme_is_feature_supported_by_fw(WOW)) { |
| hdd_err("Wake-on-Wireless feature is not supported in firmware!"); |
| |
| return -EINVAL; |
| } |
| |
| if (count > MAX_USER_COMMAND_SIZE_WOWL_PATTERN) { |
| hdd_err("Command length is larger than %d bytes.", |
| MAX_USER_COMMAND_SIZE_WOWL_PATTERN); |
| |
| return -EINVAL; |
| } |
| |
| /* Get command from user */ |
| if (copy_from_user(cmd, buf, count)) |
| return -EFAULT; |
| cmd[count] = '\0'; |
| sptr = cmd; |
| |
| /* Get pattern idx */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| |
| if (kstrtou8(token, 0, &pattern_idx)) |
| return -EINVAL; |
| |
| /* Get pattern offset */ |
| token = strsep(&sptr, " "); |
| |
| /* Delete pattern if no further argument */ |
| if (!token) { |
| hdd_del_wowl_ptrn_debugfs(pAdapter, pattern_idx); |
| |
| return count; |
| } |
| |
| if (kstrtou8(token, 0, &pattern_offset)) |
| return -EINVAL; |
| |
| /* Get pattern */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| |
| pattern_buf = token; |
| |
| /* Get pattern mask */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| return -EINVAL; |
| |
| pattern_mask = token; |
| pattern_mask[strlen(pattern_mask) - 1] = '\0'; |
| |
| hdd_add_wowl_ptrn_debugfs(pAdapter, pattern_idx, pattern_offset, |
| pattern_buf, pattern_mask); |
| EXIT(); |
| return count; |
| } |
| |
| /** |
| * wcnss_wowpattern_write() - SSR wrapper for __wcnss_wowpattern_write |
| * @file: file pointer |
| * @buf: buffer |
| * @count: count |
| * @ppos: position pointer |
| * |
| * Return: 0 on success, error number otherwise |
| */ |
| static ssize_t wcnss_wowpattern_write(struct file *file, |
| const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| ssize_t ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wcnss_wowpattern_write(file, buf, count, ppos); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * wcnss_patterngen_write() - pattern_gen debugfs handler |
| * @file: debugfs file handle |
| * @buf: text being written to the debugfs |
| * @count: size of @buf |
| * @ppos: (unused) offset into the virtual file system |
| * |
| * Return: number of bytes processed |
| */ |
| static ssize_t __wcnss_patterngen_write(struct file *file, |
| const char __user *buf, size_t count, |
| loff_t *ppos) |
| { |
| hdd_adapter_t *pAdapter; |
| hdd_context_t *pHddCtx; |
| tSirAddPeriodicTxPtrn *addPeriodicTxPtrnParams; |
| tSirDelPeriodicTxPtrn *delPeriodicTxPtrnParams; |
| |
| char *cmd, *sptr, *token; |
| uint8_t pattern_idx = 0; |
| uint8_t pattern_duration = 0; |
| char *pattern_buf; |
| uint16_t pattern_len = 0; |
| uint16_t i = 0; |
| QDF_STATUS status; |
| int ret; |
| |
| ENTER(); |
| |
| pAdapter = (hdd_adapter_t *)file->private_data; |
| if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic)) { |
| hdd_alert("Invalid adapter or adapter has invalid magic."); |
| |
| return -EINVAL; |
| } |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| ret = wlan_hdd_validate_context(pHddCtx); |
| if (0 != ret) |
| return ret; |
| |
| if (!sme_is_feature_supported_by_fw(WLAN_PERIODIC_TX_PTRN)) { |
| hdd_err("Periodic Tx Pattern Offload feature is not supported in firmware!"); |
| return -EINVAL; |
| } |
| |
| /* Get command from user */ |
| if (count <= MAX_USER_COMMAND_SIZE_FRAME) |
| cmd = qdf_mem_malloc(count + 1); |
| else { |
| hdd_err("Command length is larger than %d bytes.", |
| MAX_USER_COMMAND_SIZE_FRAME); |
| |
| return -EINVAL; |
| } |
| |
| if (!cmd) { |
| hdd_err("Memory allocation for cmd failed!"); |
| return -ENOMEM; |
| } |
| |
| if (copy_from_user(cmd, buf, count)) { |
| qdf_mem_free(cmd); |
| return -EFAULT; |
| } |
| cmd[count] = '\0'; |
| sptr = cmd; |
| |
| /* Get pattern idx */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| goto failure; |
| if (kstrtou8(token, 0, &pattern_idx)) |
| goto failure; |
| |
| if (pattern_idx > (MAXNUM_PERIODIC_TX_PTRNS - 1)) { |
| hdd_err("Pattern index %d is not in the range (0 ~ %d).", |
| pattern_idx, MAXNUM_PERIODIC_TX_PTRNS - 1); |
| |
| goto failure; |
| } |
| |
| /* Get pattern duration */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| goto failure; |
| if (kstrtou8(token, 0, &pattern_duration)) |
| goto failure; |
| |
| /* Delete pattern using index if duration is 0 */ |
| if (!pattern_duration) { |
| delPeriodicTxPtrnParams = |
| qdf_mem_malloc(sizeof(tSirDelPeriodicTxPtrn)); |
| if (!delPeriodicTxPtrnParams) { |
| hdd_err("Memory allocation failed!"); |
| qdf_mem_free(cmd); |
| return -ENOMEM; |
| } |
| delPeriodicTxPtrnParams->ucPtrnId = pattern_idx; |
| delPeriodicTxPtrnParams->ucPatternIdBitmap = 1 << pattern_idx; |
| qdf_copy_macaddr(&delPeriodicTxPtrnParams->mac_address, |
| &pAdapter->macAddressCurrent); |
| |
| /* Delete pattern */ |
| status = sme_del_periodic_tx_ptrn(pHddCtx->hHal, |
| delPeriodicTxPtrnParams); |
| if (QDF_STATUS_SUCCESS != status) { |
| hdd_err("sme_del_periodic_tx_ptrn() failed!"); |
| |
| qdf_mem_free(delPeriodicTxPtrnParams); |
| goto failure; |
| } |
| qdf_mem_free(cmd); |
| qdf_mem_free(delPeriodicTxPtrnParams); |
| return count; |
| } |
| |
| /* |
| * In SAP mode allow configuration without any connection check |
| * In STA mode check if it's in connected state before adding |
| * patterns |
| */ |
| hdd_info("device mode %d", pAdapter->device_mode); |
| if ((QDF_STA_MODE == pAdapter->device_mode) && |
| (!hdd_conn_is_connected(WLAN_HDD_GET_STATION_CTX_PTR(pAdapter)))) { |
| hdd_err("Not in Connected state!"); |
| goto failure; |
| } |
| |
| /* Get pattern */ |
| token = strsep(&sptr, " "); |
| if (!token) |
| goto failure; |
| |
| pattern_buf = token; |
| pattern_buf[strlen(pattern_buf) - 1] = '\0'; |
| pattern_len = strlen(pattern_buf); |
| |
| /* Since the pattern is a hex string, 2 characters represent 1 byte. */ |
| if (pattern_len % 2) { |
| hdd_err("Malformed pattern!"); |
| |
| goto failure; |
| } else |
| pattern_len >>= 1; |
| |
| if (pattern_len < 14 || pattern_len > PERIODIC_TX_PTRN_MAX_SIZE) { |
| hdd_err("Not an 802.3 frame!"); |
| |
| goto failure; |
| } |
| |
| addPeriodicTxPtrnParams = qdf_mem_malloc(sizeof(tSirAddPeriodicTxPtrn)); |
| if (!addPeriodicTxPtrnParams) { |
| hdd_err("Memory allocation failed!"); |
| qdf_mem_free(cmd); |
| return -ENOMEM; |
| } |
| |
| addPeriodicTxPtrnParams->ucPtrnId = pattern_idx; |
| addPeriodicTxPtrnParams->usPtrnIntervalMs = pattern_duration * 500; |
| addPeriodicTxPtrnParams->ucPtrnSize = pattern_len; |
| qdf_copy_macaddr(&addPeriodicTxPtrnParams->mac_address, |
| &pAdapter->macAddressCurrent); |
| |
| /* Extract the pattern */ |
| for (i = 0; i < addPeriodicTxPtrnParams->ucPtrnSize; i++) { |
| addPeriodicTxPtrnParams->ucPattern[i] = |
| (hex_to_bin(pattern_buf[0]) << 4) + |
| hex_to_bin(pattern_buf[1]); |
| |
| /* Skip to next byte */ |
| pattern_buf += 2; |
| } |
| |
| /* Add pattern */ |
| status = sme_add_periodic_tx_ptrn(pHddCtx->hHal, |
| addPeriodicTxPtrnParams); |
| if (QDF_STATUS_SUCCESS != status) { |
| hdd_err("sme_add_periodic_tx_ptrn() failed!"); |
| |
| qdf_mem_free(addPeriodicTxPtrnParams); |
| goto failure; |
| } |
| qdf_mem_free(cmd); |
| qdf_mem_free(addPeriodicTxPtrnParams); |
| EXIT(); |
| return count; |
| |
| failure: |
| hdd_err("Invalid input. Input format is: ptrn_idx duration pattern"); |
| qdf_mem_free(cmd); |
| return -EINVAL; |
| } |
| |
| /** |
| * wcnss_patterngen_write() - SSR wrapper for __wcnss_patterngen_write |
| * @file: file pointer |
| * @buf: buffer |
| * @count: count |
| * @ppos: position pointer |
| * |
| * Return: 0 on success, error number otherwise |
| */ |
| static ssize_t wcnss_patterngen_write(struct file *file, |
| const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| ssize_t ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wcnss_patterngen_write(file, buf, count, ppos); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| #ifdef WLAN_POWER_DEBUGFS |
| struct power_stats_priv { |
| struct power_stats_response power_stats; |
| }; |
| |
| static void hdd_power_debugstats_dealloc(void *priv) |
| { |
| struct power_stats_priv *stats = priv; |
| qdf_mem_free(stats->power_stats.debug_registers); |
| } |
| |
| static void hdd_power_debugstats_cb(struct power_stats_response *response, |
| void *context) |
| { |
| struct hdd_request *request; |
| struct power_stats_priv *priv; |
| uint32_t *debug_registers; |
| uint32_t debug_registers_len; |
| |
| ENTER(); |
| |
| request = hdd_request_get(context); |
| if (!request) { |
| hdd_err("Obsolete request"); |
| return; |
| } |
| |
| priv = hdd_request_priv(request); |
| |
| /* copy fixed-sized data */ |
| priv->power_stats = *response; |
| |
| /* copy variable-size data */ |
| if (response->num_debug_register) { |
| debug_registers_len = (sizeof(response->debug_registers[0]) * |
| response->num_debug_register); |
| debug_registers = qdf_mem_malloc(debug_registers_len); |
| priv->power_stats.debug_registers = debug_registers; |
| if (debug_registers) { |
| qdf_mem_copy(debug_registers, |
| response->debug_registers, |
| debug_registers_len); |
| } else { |
| hdd_err("Power stats memory alloc fails!"); |
| priv->power_stats.num_debug_register = 0; |
| } |
| } |
| hdd_request_complete(request); |
| hdd_request_put(request); |
| EXIT(); |
| } |
| |
| /** |
| * __wlan_hdd_read_power_debugfs() - API to collect Chip power stats from FW |
| * @file: file pointer |
| * @buf: buffer |
| * @count: count |
| * @pos: position pointer |
| * |
| * Return: Number of bytes read on success, error number otherwise |
| */ |
| static ssize_t __wlan_hdd_read_power_debugfs(struct file *file, |
| char __user *buf, |
| size_t count, loff_t *pos) |
| { |
| hdd_adapter_t *adapter; |
| hdd_context_t *hdd_ctx; |
| QDF_STATUS status; |
| struct power_stats_response *chip_power_stats; |
| ssize_t ret_cnt = 0; |
| int j; |
| unsigned int len = 0; |
| char *power_debugfs_buf = NULL; |
| void *cookie; |
| struct hdd_request *request; |
| struct power_stats_priv *priv; |
| static const struct hdd_request_params params = { |
| .priv_size = sizeof(*priv), |
| .timeout_ms = WLAN_WAIT_TIME_STATS, |
| .dealloc = hdd_power_debugstats_dealloc, |
| }; |
| |
| ENTER(); |
| adapter = (hdd_adapter_t *)file->private_data; |
| if ((!adapter) || (WLAN_HDD_ADAPTER_MAGIC != adapter->magic)) { |
| hdd_err("Invalid adapter or adapter has invalid magic"); |
| return -EINVAL; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| ret_cnt = wlan_hdd_validate_context(hdd_ctx); |
| if (0 != ret_cnt) |
| return ret_cnt; |
| |
| request = hdd_request_alloc(¶ms); |
| if (!request) { |
| hdd_err("Request allocation failure"); |
| return -ENOMEM; |
| } |
| cookie = hdd_request_cookie(request); |
| |
| status = sme_power_debug_stats_req(hdd_ctx->hHal, |
| hdd_power_debugstats_cb, |
| cookie); |
| if (QDF_IS_STATUS_ERROR(status)) { |
| hdd_err("chip power stats request failed"); |
| ret_cnt = -EINVAL; |
| goto cleanup; |
| } |
| |
| ret_cnt = hdd_request_wait_for_response(request); |
| if (ret_cnt) { |
| hdd_err("Target response timed out Power stats"); |
| ret_cnt = -ETIMEDOUT; |
| goto cleanup; |
| } |
| |
| priv = hdd_request_priv(request); |
| chip_power_stats = &priv->power_stats; |
| |
| power_debugfs_buf = qdf_mem_malloc(POWER_DEBUGFS_BUFFER_MAX_LEN); |
| if (!power_debugfs_buf) { |
| hdd_err("Power stats buffer alloc fails!"); |
| ret_cnt = -EINVAL; |
| goto cleanup; |
| } |
| |
| len += scnprintf(power_debugfs_buf, POWER_DEBUGFS_BUFFER_MAX_LEN, |
| "POWER DEBUG STATS\n=================\n" |
| "cumulative_sleep_time_ms: %d\n" |
| "cumulative_total_on_time_ms: %d\n" |
| "deep_sleep_enter_counter: %d\n" |
| "last_deep_sleep_enter_tstamp_ms: %d\n" |
| "debug_register_fmt: %d\n" |
| "num_debug_register: %d\n", |
| chip_power_stats->cumulative_sleep_time_ms, |
| chip_power_stats->cumulative_total_on_time_ms, |
| chip_power_stats->deep_sleep_enter_counter, |
| chip_power_stats->last_deep_sleep_enter_tstamp_ms, |
| chip_power_stats->debug_register_fmt, |
| chip_power_stats->num_debug_register); |
| |
| for (j = 0; j < chip_power_stats->num_debug_register; j++) { |
| if ((POWER_DEBUGFS_BUFFER_MAX_LEN - len) > 0) |
| len += scnprintf(power_debugfs_buf + len, |
| POWER_DEBUGFS_BUFFER_MAX_LEN - len, |
| "debug_registers[%d]: 0x%x\n", j, |
| chip_power_stats->debug_registers[j]); |
| else |
| j = chip_power_stats->num_debug_register; |
| } |
| |
| ret_cnt = simple_read_from_buffer(buf, count, pos, |
| power_debugfs_buf, len); |
| |
| cleanup: |
| qdf_mem_free(power_debugfs_buf); |
| hdd_request_put(request); |
| |
| return ret_cnt; |
| } |
| |
| /** |
| * wlan_hdd_read_power_debugfs() - SSR wrapper function to read power debugfs |
| * @file: file pointer |
| * @buf: buffer |
| * @count: count |
| * @pos: position pointer |
| * |
| * Return: Number of bytes read on success, error number otherwise |
| */ |
| static ssize_t wlan_hdd_read_power_debugfs(struct file *file, |
| char __user *buf, |
| size_t count, loff_t *pos) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_read_power_debugfs(file, buf, count, pos); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_open_power_debugfs() - Function to save private on open |
| * @inode: Pointer to inode structure |
| * @file: file pointer |
| * |
| * Return: zero |
| */ |
| static int __wlan_hdd_open_power_debugfs(struct inode *inode, struct file *file) |
| { |
| file->private_data = inode->i_private; |
| return 0; |
| } |
| |
| |
| /** |
| * wlan_hdd_open_power_debugfs() - SSR wrapper function to save private on open |
| * @inode: Pointer to inode structure |
| * @file: file pointer |
| * |
| * Return: zero |
| */ |
| static int wlan_hdd_open_power_debugfs(struct inode *inode, struct file *file) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_open_power_debugfs(inode, file); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| #endif |
| |
| /** |
| * __wcnss_debugfs_open() - Generic debugfs open() handler |
| * @inode: inode of the debugfs file |
| * @file: file handle of the debugfs file |
| * |
| * Return: 0 |
| */ |
| static int __wcnss_debugfs_open(struct inode *inode, struct file *file) |
| { |
| hdd_adapter_t *adapter; |
| hdd_context_t *hdd_ctx; |
| int ret; |
| |
| ENTER(); |
| |
| if (inode->i_private) |
| file->private_data = inode->i_private; |
| |
| adapter = (hdd_adapter_t *)file->private_data; |
| if ((NULL == adapter) || (WLAN_HDD_ADAPTER_MAGIC != adapter->magic)) { |
| hdd_alert("Invalid adapter or adapter has invalid magic."); |
| return -EINVAL; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| ret = wlan_hdd_validate_context(hdd_ctx); |
| if (0 != ret) |
| return ret; |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * wcnss_debugfs_open() - SSR wrapper for __wcnss_debugfs_open |
| * @inode: inode pointer |
| * @file: file pointer |
| * |
| * Return: 0 on success, error number otherwise |
| */ |
| static int wcnss_debugfs_open(struct inode *inode, struct file *file) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wcnss_debugfs_open(inode, file); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| static const struct file_operations fops_wowenable = { |
| .write = wcnss_wowenable_write, |
| .open = wcnss_debugfs_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static const struct file_operations fops_wowpattern = { |
| .write = wcnss_wowpattern_write, |
| .open = wcnss_debugfs_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| static const struct file_operations fops_patterngen = { |
| .write = wcnss_patterngen_write, |
| .open = wcnss_debugfs_open, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| #ifdef WLAN_POWER_DEBUGFS |
| static const struct file_operations fops_powerdebugs = { |
| .read = wlan_hdd_read_power_debugfs, |
| .open = wlan_hdd_open_power_debugfs, |
| .owner = THIS_MODULE, |
| .llseek = default_llseek, |
| }; |
| |
| /** |
| * wlan_hdd_create_power_stats_file() - API to create power stats file |
| * @adapter: interface adapter pointer |
| * |
| * Return: QDF_STATUS |
| */ |
| static QDF_STATUS wlan_hdd_create_power_stats_file(hdd_adapter_t *adapter) |
| { |
| if (!debugfs_create_file("power_stats", S_IRUSR | S_IRGRP | S_IROTH, |
| adapter->debugfs_phy, adapter, |
| &fops_powerdebugs)) |
| return QDF_STATUS_E_FAILURE; |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| #else |
| static QDF_STATUS wlan_hdd_create_power_stats_file(hdd_adapter_t *adapter) |
| { |
| return QDF_STATUS_SUCCESS; |
| } |
| #endif |
| |
| /** |
| * hdd_debugfs_init() - Initialize debugfs interface |
| * @adapter: interface adapter pointer |
| * |
| * Register support for the debugfs files supported by the driver. |
| * |
| * NB: The current implementation only supports debugfs operations |
| * on the primary interface, i.e. wlan0 |
| * |
| * Return: QDF_STATUS_SUCCESS if all files registered, |
| * QDF_STATUS_E_FAILURE on failure |
| */ |
| QDF_STATUS hdd_debugfs_init(hdd_adapter_t *adapter) |
| { |
| struct net_device *dev = adapter->dev; |
| adapter->debugfs_phy = debugfs_create_dir(dev->name, 0); |
| |
| if (NULL == adapter->debugfs_phy) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (NULL == debugfs_create_file("wow_enable", S_IRUSR | S_IWUSR, |
| adapter->debugfs_phy, adapter, |
| &fops_wowenable)) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (NULL == debugfs_create_file("wow_pattern", S_IRUSR | S_IWUSR, |
| adapter->debugfs_phy, adapter, |
| &fops_wowpattern)) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (NULL == debugfs_create_file("pattern_gen", S_IRUSR | S_IWUSR, |
| adapter->debugfs_phy, adapter, |
| &fops_patterngen)) |
| return QDF_STATUS_E_FAILURE; |
| |
| if (QDF_STATUS_SUCCESS != wlan_hdd_create_power_stats_file(adapter)) |
| return QDF_STATUS_E_FAILURE; |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * hdd_debugfs_exit() - Shutdown debugfs interface |
| * @adapter: interface adapter pointer |
| * |
| * Unregister support for the debugfs files supported by the driver. |
| * |
| * Return: None |
| */ |
| void hdd_debugfs_exit(hdd_adapter_t *adapter) |
| { |
| struct net_device *dev = adapter->dev; |
| |
| if (adapter->debugfs_phy) |
| debugfs_remove_recursive(adapter->debugfs_phy); |
| else |
| hdd_info("Interface %s has no debugfs entry", dev->name); |
| } |
| #endif /* #ifdef WLAN_OPEN_SOURCE */ |