blob: 57c3d3693a1daa55836ad7320efcc88f0b217832 [file] [log] [blame]
/*
* Copyright (c) 2013-2018 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.
*/
#ifdef WLAN_OPEN_SOURCE
#include <wlan_hdd_includes.h>
#include <wlan_hdd_wowl.h>
#include <vos_sched.h>
#include "wlan_hdd_debugfs.h"
#include "wlan_hdd_debugfs_ocb.h"
#define MAX_USER_COMMAND_SIZE_WOWL_ENABLE 8
#define MAX_USER_COMMAND_SIZE_WOWL_PATTERN 512
#ifdef MULTI_IF_NAME
#define HDD_DEBUGFS_DIRNAME "wlan_wcnss" MULTI_IF_NAME
#else
#define HDD_DEBUGFS_DIRNAME "wlan_wcnss"
#endif
#ifdef WLAN_POWER_DEBUGFS
#define POWER_DEBUGFS_BUFFER_MAX_LEN 4096
#endif
/**
* __wcnss_wowenable_write() - write wow enable
* @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)
{
hdd_adapter_t *pAdapter;
hdd_context_t *hdd_ctx;
char cmd[MAX_USER_COMMAND_SIZE_WOWL_ENABLE + 1];
char *sptr, *token;
v_U8_t wow_enable = 0;
v_U8_t wow_mp = 0;
v_U8_t wow_pbm = 0;
int ret;
ENTER();
pAdapter = (hdd_adapter_t *)file->private_data;
if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic))
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: Invalid adapter or adapter has invalid magic.",
__func__);
return -EINVAL;
}
hdd_ctx = WLAN_HDD_GET_CTX(pAdapter);
ret = wlan_hdd_validate_context(hdd_ctx);
if (0 != ret)
return ret;
if (!sme_IsFeatureSupportedByFW(WOW))
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Wake-on-Wireless feature is not supported "
"in firmware!", __func__);
return -EINVAL;
}
if (count > MAX_USER_COMMAND_SIZE_WOWL_ENABLE)
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Command length is larger than %d bytes.",
__func__, 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))
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: hdd_exit_wowl failed!", __func__);
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))
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: hdd_enter_wowl failed!", __func__);
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;
vos_ssr_protect(__func__);
ret = __wcnss_wowenable_write(file, buf, count, ppos);
vos_ssr_unprotect(__func__);
return ret;
}
/**
* __wcnss_wowpattern_write() - write wow pattern
* @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)
{
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;
v_U8_t pattern_idx = 0;
v_U8_t pattern_offset = 0;
char *pattern_buf;
char *pattern_mask;
int ret;
if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: Invalid adapter or adapter has invalid magic.",
__func__);
return -EINVAL;
}
hdd_ctx = WLAN_HDD_GET_CTX(pAdapter);
ret = wlan_hdd_validate_context(hdd_ctx);
if (0 != ret)
return ret;
if (!sme_IsFeatureSupportedByFW(WOW))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Wake-on-Wireless feature is not supported "
"in firmware!", __func__);
return -EINVAL;
}
if (count > MAX_USER_COMMAND_SIZE_WOWL_PATTERN)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Command length is larger than %d bytes.",
__func__, 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;
vos_ssr_protect(__func__);
ret = __wcnss_wowpattern_write(file, buf, count, ppos);
vos_ssr_unprotect(__func__);
return ret;
}
/**
* __wcnss_patterngen_write() - write pattern
* @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)
{
hdd_adapter_t *pAdapter;
hdd_context_t *pHddCtx;
tSirAddPeriodicTxPtrn *addPeriodicTxPtrnParams;
tSirDelPeriodicTxPtrn *delPeriodicTxPtrnParams;
char *cmd, *sptr, *token;
v_U8_t pattern_idx = 0;
v_U8_t pattern_duration = 0;
char *pattern_buf;
v_U16_t pattern_len = 0;
v_U16_t i = 0;
int ret;
ENTER();
pAdapter = (hdd_adapter_t *)file->private_data;
if ((NULL == pAdapter) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: Invalid adapter or adapter has invalid magic.",
__func__);
return -EINVAL;
}
pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
ret = wlan_hdd_validate_context(pHddCtx);
if (0 != ret)
return ret;
if (!sme_IsFeatureSupportedByFW(WLAN_PERIODIC_TX_PTRN))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Periodic Tx Pattern Offload feature is not supported "
"in firmware!", __func__);
return -EINVAL;
}
/* Get command from user */
if (count <= MAX_USER_COMMAND_SIZE_FRAME)
cmd = vos_mem_malloc(count + 1);
else
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Command length is larger than %d bytes.",
__func__, MAX_USER_COMMAND_SIZE_FRAME);
return -EINVAL;
}
if (!cmd)
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Memory allocation for cmd failed!", __func__);
return -EFAULT;
}
if (copy_from_user(cmd, buf, count))
{
vos_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))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Pattern index %d is not in the range (0 ~ %d).",
__func__, 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 =
vos_mem_malloc(sizeof(tSirDelPeriodicTxPtrn));
if (!delPeriodicTxPtrnParams)
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Memory allocation for delPeriodicTxPtrnParams "
"failed!", __func__);
vos_mem_free(cmd);
return -EFAULT;
}
delPeriodicTxPtrnParams->ucPtrnId = pattern_idx;
delPeriodicTxPtrnParams->ucPatternIdBitmap = 1 << pattern_idx;
vos_mem_copy(delPeriodicTxPtrnParams->macAddress,
pAdapter->macAddressCurrent.bytes, 6);
/* Delete pattern */
if (eHAL_STATUS_SUCCESS != sme_DelPeriodicTxPtrn(pHddCtx->hHal,
delPeriodicTxPtrnParams))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: sme_DelPeriodicTxPtrn() failed!", __func__);
vos_mem_free(delPeriodicTxPtrnParams);
goto failure;
}
vos_mem_free(cmd);
vos_mem_free(delPeriodicTxPtrnParams);
return count;
}
/* Check if it's in connected state only when adding patterns */
if (!hdd_connIsConnected(WLAN_HDD_GET_STATION_CTX_PTR(pAdapter)))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Not in Connected state!", __func__);
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)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Malformed pattern!", __func__);
goto failure;
}
else
pattern_len >>= 1;
if (pattern_len < 14 || pattern_len > PERIODIC_TX_PTRN_MAX_SIZE)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Not an 802.3 frame!", __func__);
goto failure;
}
addPeriodicTxPtrnParams = vos_mem_malloc(sizeof(tSirAddPeriodicTxPtrn));
if (!addPeriodicTxPtrnParams)
{
VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Memory allocation for addPeriodicTxPtrnParams "
"failed!", __func__);
vos_mem_free(cmd);
return -EFAULT;
}
addPeriodicTxPtrnParams->ucPtrnId = pattern_idx;
addPeriodicTxPtrnParams->usPtrnIntervalMs = pattern_duration * 500;
addPeriodicTxPtrnParams->ucPtrnSize = pattern_len;
vos_mem_copy(addPeriodicTxPtrnParams->macAddress,
pAdapter->macAddressCurrent.bytes, 6);
/* Extract the pattern */
for(i = 0; i < addPeriodicTxPtrnParams->ucPtrnSize; i++)
{
addPeriodicTxPtrnParams->ucPattern[i] =
(hdd_parse_hex(pattern_buf[0]) << 4) + hdd_parse_hex(pattern_buf[1]);
/* Skip to next byte */
pattern_buf += 2;
}
/* Add pattern */
if (eHAL_STATUS_SUCCESS != sme_AddPeriodicTxPtrn(pHddCtx->hHal,
addPeriodicTxPtrnParams))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: sme_AddPeriodicTxPtrn() failed!", __func__);
vos_mem_free(addPeriodicTxPtrnParams);
goto failure;
}
vos_mem_free(cmd);
vos_mem_free(addPeriodicTxPtrnParams);
EXIT();
return count;
failure:
vos_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;
vos_ssr_protect(__func__);
ret = __wcnss_patterngen_write(file, buf, count, ppos);
vos_ssr_unprotect(__func__);
return ret;
}
/**
* __wlan_hdd_debugfs_open() - open debugfs
* @inode: inode pointer
* @file: file pointer
*
* Return: 0 on success, error number otherwise
*/
static int __wlan_hdd_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)) {
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: Invalid adapter or adapter has invalid magic.",
__func__);
return -EINVAL;
}
hdd_ctx = WLAN_HDD_GET_CTX(adapter);
ret = wlan_hdd_validate_context(hdd_ctx);
if (0 != ret)
return ret;
EXIT();
return 0;
}
/**
* wlan_hdd_debugfs_open() - SSR wrapper for __wlan_hdd_debugfs_open
* @inode: inode pointer
* @file: file pointer
*
* Return: 0 on success, error number otherwise
*/
int wlan_hdd_debugfs_open(struct inode *inode, struct file *file)
{
int ret;
vos_ssr_protect(__func__);
ret = __wlan_hdd_debugfs_open(inode, file);
vos_ssr_unprotect(__func__);
return ret;
}
#ifdef WLAN_POWER_DEBUGFS
/**
* hdd_power_debugstats_cb() - callback routine for Power stats debugs
* @response: Pointer to Power stats response
* @context: Pointer to statsContext
*
* Return: None
*/
static void hdd_power_debugstats_cb(struct power_stats_response *response,
void *context)
{
struct statsContext *stats_context;
struct power_stats_response *power_stats;
hdd_adapter_t *adapter;
uint32_t power_stats_len;
uint32_t stats_registers_len;
ENTER();
if (NULL == context) {
hddLog(LOGE, FL("context is NULL"));
return;
}
stats_context = (struct statsContext *)context;
spin_lock(&hdd_context_lock);
adapter = stats_context->pAdapter;
if ((POWER_STATS_MAGIC != stats_context->magic) ||
(NULL == adapter) ||
(WLAN_HDD_ADAPTER_MAGIC != adapter->magic)) {
spin_unlock(&hdd_context_lock);
hddLog(LOGE, FL("Invalid context, adapter [%pK] magic [%08x]"),
adapter, stats_context->magic);
return;
}
/* Invalidate the Stats context magic */
stats_context->magic = 0;
stats_registers_len = (sizeof(response->debug_registers[0]) *
response->num_debug_register);
power_stats_len = stats_registers_len + sizeof(*power_stats);
adapter->chip_power_stats = vos_mem_malloc(power_stats_len);
if (!adapter->chip_power_stats) {
hddLog(LOGE, FL("Power stats memory alloc fails!"));
goto exit_stats_cb;
}
power_stats = adapter->chip_power_stats;
vos_mem_zero(power_stats, power_stats_len);
power_stats->cumulative_sleep_time_ms
= response->cumulative_sleep_time_ms;
power_stats->cumulative_total_on_time_ms
= response->cumulative_total_on_time_ms -
response->cumulative_sleep_time_ms;
power_stats->deep_sleep_enter_counter
= response->deep_sleep_enter_counter;
power_stats->last_deep_sleep_enter_tstamp_ms
= response->last_deep_sleep_enter_tstamp_ms;
power_stats->debug_register_fmt
= response->debug_register_fmt;
power_stats->num_debug_register
= response->num_debug_register;
power_stats->debug_registers = (uint32_t *)(power_stats + 1);
vos_mem_copy(power_stats->debug_registers,
response->debug_registers,
stats_registers_len);
exit_stats_cb:
complete(&stats_context->completion);
spin_unlock(&hdd_context_lock);
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;
struct statsContext context;
struct power_stats_response *chip_power_stats;
ssize_t ret_cnt = 0;
int rc = 0, j;
unsigned int len = 0;
char *power_debugfs_buf;
ENTER();
adapter = (hdd_adapter_t *)file->private_data;
if ((NULL == adapter) || (WLAN_HDD_ADAPTER_MAGIC != adapter->magic)) {
hddLog(LOGE,
FL("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;
mutex_lock(&hdd_ctx->power_stats_lock);
if (adapter->chip_power_stats)
vos_mem_free(adapter->chip_power_stats);
adapter->chip_power_stats = NULL;
context.pAdapter = adapter;
context.magic = POWER_STATS_MAGIC;
init_completion(&context.completion);
if (eHAL_STATUS_SUCCESS !=
sme_power_debug_stats_req(hdd_ctx->hHal,
hdd_power_debugstats_cb,
&context)) {
hddLog(LOGE, FL("chip power stats request failed"));
ret_cnt = -EINVAL;
goto out;
}
rc = wait_for_completion_timeout(&context.completion,
msecs_to_jiffies(WLAN_WAIT_TIME_POWER_STATS));
if (!rc) {
hddLog(LOGE, FL("Target response timed out Power stats"));
/* Invalidate the Stats context magic */
spin_lock(&hdd_context_lock);
context.magic = 0;
spin_unlock(&hdd_context_lock);
ret_cnt = -ETIMEDOUT;
goto out;
}
chip_power_stats = adapter->chip_power_stats;
if (!chip_power_stats) {
hddLog(LOGE, FL("Power stats retrieval fails!"));
ret_cnt = -EINVAL;
goto out;
}
power_debugfs_buf = vos_mem_malloc(POWER_DEBUGFS_BUFFER_MAX_LEN);
if (!power_debugfs_buf) {
hddLog(LOGE, FL("Power stats buffer alloc fails!"));
vos_mem_free(chip_power_stats);
adapter->chip_power_stats = NULL;
ret_cnt = -EINVAL;
goto out;
}
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;
}
vos_mem_free(chip_power_stats);
adapter->chip_power_stats = NULL;
ret_cnt = simple_read_from_buffer(buf, count, pos,
power_debugfs_buf, len);
vos_mem_free(power_debugfs_buf);
out:
mutex_unlock(&hdd_ctx->power_stats_lock);
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;
vos_ssr_protect(__func__);
ret = __wlan_hdd_read_power_debugfs(file, buf, count, pos);
vos_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;
vos_ssr_protect(__func__);
ret = __wlan_hdd_open_power_debugfs(inode, file);
vos_ssr_unprotect(__func__);
return ret;
}
#endif
static const struct file_operations fops_wowenable = {
.write = wcnss_wowenable_write,
.open = wlan_hdd_debugfs_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static const struct file_operations fops_wowpattern = {
.write = wcnss_wowpattern_write,
.open = wlan_hdd_debugfs_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static const struct file_operations fops_patterngen = {
.write = wcnss_patterngen_write,
.open = wlan_hdd_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_init_power_stats_debugfs() - API to init power stats debugfs
*
* Return: VOS_STATUS
*/
static VOS_STATUS wlan_hdd_init_power_stats_debugfs(hdd_adapter_t *adapter,
hdd_context_t *hdd_ctx)
{
if (NULL == debugfs_create_file("power_stats",
S_IRUSR | S_IRGRP | S_IROTH,
hdd_ctx->debugfs_phy, adapter,
&fops_powerdebugs))
return VOS_STATUS_E_FAILURE;
mutex_init(&hdd_ctx->power_stats_lock);
return VOS_STATUS_SUCCESS;
}
/**
* wlan_hdd_deinit_power_stats_debugfs() - API to deinit power stats debugfs
*
* Return: None
*/
static void wlan_hdd_deinit_power_stats_debugfs(hdd_context_t *hdd_ctx)
{
mutex_destroy(&hdd_ctx->power_stats_lock);
}
#else
static VOS_STATUS wlan_hdd_init_power_stats_debugfs(hdd_adapter_t *adapter,
hdd_context_t *hdd_ctx)
{
return VOS_STATUS_SUCCESS;
}
static void wlan_hdd_deinit_power_stats_debugfs(hdd_context_t *hdd_ctx)
{
return;
}
#endif
VOS_STATUS hdd_debugfs_init(hdd_adapter_t *pAdapter)
{
hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
pHddCtx->debugfs_phy = debugfs_create_dir(HDD_DEBUGFS_DIRNAME, 0);
if (NULL == pHddCtx->debugfs_phy)
return VOS_STATUS_E_FAILURE;
if (NULL == debugfs_create_file("wow_enable", S_IRUSR | S_IWUSR,
pHddCtx->debugfs_phy, pAdapter, &fops_wowenable))
return VOS_STATUS_E_FAILURE;
if (NULL == debugfs_create_file("wow_pattern", S_IRUSR | S_IWUSR,
pHddCtx->debugfs_phy, pAdapter, &fops_wowpattern))
return VOS_STATUS_E_FAILURE;
if (NULL == debugfs_create_file("pattern_gen", S_IRUSR | S_IWUSR,
pHddCtx->debugfs_phy, pAdapter, &fops_patterngen))
return VOS_STATUS_E_FAILURE;
if (VOS_STATUS_SUCCESS != wlan_hdd_init_power_stats_debugfs(pAdapter,
pHddCtx))
return VOS_STATUS_E_FAILURE;
if (wlan_hdd_create_dsrc_tx_stats_file(pAdapter, pHddCtx))
return VOS_STATUS_E_FAILURE;
if (wlan_hdd_create_dsrc_chan_stats_file(pAdapter, pHddCtx))
return VOS_STATUS_E_FAILURE;
return VOS_STATUS_SUCCESS;
}
void hdd_debugfs_exit(hdd_context_t *pHddCtx)
{
wlan_hdd_deinit_power_stats_debugfs(pHddCtx);
debugfs_remove_recursive(pHddCtx->debugfs_phy);
}
#endif /* #ifdef WLAN_OPEN_SOURCE */