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/*
* Copyright (c) 2014 Redpine Signals 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.
*/
#include "rsi_debugfs.h"
#include "rsi_sdio.h"
/**
* rsi_sdio_stats_read() - This function returns the sdio status of the driver.
* @seq: Pointer to the sequence file structure.
* @data: Pointer to the data.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_sdio_stats_read(struct seq_file *seq, void *data)
{
struct rsi_common *common = seq->private;
struct rsi_hw *adapter = common->priv;
struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
seq_printf(seq, "total_sdio_interrupts: %d\n",
dev->rx_info.sdio_int_counter);
seq_printf(seq, "sdio_msdu_pending_intr_count: %d\n",
dev->rx_info.total_sdio_msdu_pending_intr);
seq_printf(seq, "sdio_buff_full_count : %d\n",
dev->rx_info.buf_full_counter);
seq_printf(seq, "sdio_buf_semi_full_count %d\n",
dev->rx_info.buf_semi_full_counter);
seq_printf(seq, "sdio_unknown_intr_count: %d\n",
dev->rx_info.total_sdio_unknown_intr);
/* RX Path Stats */
seq_printf(seq, "BUFFER FULL STATUS : %d\n",
dev->rx_info.buffer_full);
seq_printf(seq, "SEMI BUFFER FULL STATUS : %d\n",
dev->rx_info.semi_buffer_full);
seq_printf(seq, "MGMT BUFFER FULL STATUS : %d\n",
dev->rx_info.mgmt_buffer_full);
seq_printf(seq, "BUFFER FULL COUNTER : %d\n",
dev->rx_info.buf_full_counter);
seq_printf(seq, "BUFFER SEMI FULL COUNTER : %d\n",
dev->rx_info.buf_semi_full_counter);
seq_printf(seq, "MGMT BUFFER FULL COUNTER : %d\n",
dev->rx_info.mgmt_buf_full_counter);
return 0;
}
/**
* rsi_sdio_stats_open() - This function calls single open function of seq_file
* to open file and read contents from it.
* @inode: Pointer to the inode structure.
* @file: Pointer to the file structure.
*
* Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
*/
static int rsi_sdio_stats_open(struct inode *inode,
struct file *file)
{
return single_open(file, rsi_sdio_stats_read, inode->i_private);
}
/**
* rsi_version_read() - This function gives driver and firmware version number.
* @seq: Pointer to the sequence file structure.
* @data: Pointer to the data.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_version_read(struct seq_file *seq, void *data)
{
struct rsi_common *common = seq->private;
seq_printf(seq, "LMAC : %d.%d.%d.%d\n",
common->lmac_ver.major,
common->lmac_ver.minor,
common->lmac_ver.release_num,
common->lmac_ver.patch_num);
return 0;
}
/**
* rsi_version_open() - This function calls single open function of seq_file to
* open file and read contents from it.
* @inode: Pointer to the inode structure.
* @file: Pointer to the file structure.
*
* Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
*/
static int rsi_version_open(struct inode *inode,
struct file *file)
{
return single_open(file, rsi_version_read, inode->i_private);
}
/**
* rsi_stats_read() - This function return the status of the driver.
* @seq: Pointer to the sequence file structure.
* @data: Pointer to the data.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_stats_read(struct seq_file *seq, void *data)
{
struct rsi_common *common = seq->private;
static const unsigned char fsm_state[][32] = {
"FSM_FW_NOT_LOADED",
"FSM_CARD_NOT_READY",
"FSM_COMMON_DEV_PARAMS_SENT",
"FSM_BOOT_PARAMS_SENT",
"FSM_EEPROM_READ_MAC_ADDR",
"FSM_EEPROM_READ_RF_TYPE",
"FSM_RESET_MAC_SENT",
"FSM_RADIO_CAPS_SENT",
"FSM_BB_RF_PROG_SENT",
"FSM_MAC_INIT_DONE"
};
seq_puts(seq, "==> RSI STA DRIVER STATUS <==\n");
seq_puts(seq, "DRIVER_FSM_STATE: ");
BUILD_BUG_ON(ARRAY_SIZE(fsm_state) != NUM_FSM_STATES);
if (common->fsm_state <= FSM_MAC_INIT_DONE)
seq_printf(seq, "%s", fsm_state[common->fsm_state]);
seq_printf(seq, "(%d)\n\n", common->fsm_state);
/* Mgmt TX Path Stats */
seq_printf(seq, "total_mgmt_pkt_send : %d\n",
common->tx_stats.total_tx_pkt_send[MGMT_SOFT_Q]);
seq_printf(seq, "total_mgmt_pkt_queued : %d\n",
skb_queue_len(&common->tx_queue[MGMT_SOFT_Q]));
seq_printf(seq, "total_mgmt_pkt_freed : %d\n",
common->tx_stats.total_tx_pkt_freed[MGMT_SOFT_Q]);
/* Data TX Path Stats */
seq_printf(seq, "total_data_vo_pkt_send: %8d\t",
common->tx_stats.total_tx_pkt_send[VO_Q]);
seq_printf(seq, "total_data_vo_pkt_queued: %8d\t",
skb_queue_len(&common->tx_queue[VO_Q]));
seq_printf(seq, "total_vo_pkt_freed: %8d\n",
common->tx_stats.total_tx_pkt_freed[VO_Q]);
seq_printf(seq, "total_data_vi_pkt_send: %8d\t",
common->tx_stats.total_tx_pkt_send[VI_Q]);
seq_printf(seq, "total_data_vi_pkt_queued: %8d\t",
skb_queue_len(&common->tx_queue[VI_Q]));
seq_printf(seq, "total_vi_pkt_freed: %8d\n",
common->tx_stats.total_tx_pkt_freed[VI_Q]);
seq_printf(seq, "total_data_be_pkt_send: %8d\t",
common->tx_stats.total_tx_pkt_send[BE_Q]);
seq_printf(seq, "total_data_be_pkt_queued: %8d\t",
skb_queue_len(&common->tx_queue[BE_Q]));
seq_printf(seq, "total_be_pkt_freed: %8d\n",
common->tx_stats.total_tx_pkt_freed[BE_Q]);
seq_printf(seq, "total_data_bk_pkt_send: %8d\t",
common->tx_stats.total_tx_pkt_send[BK_Q]);
seq_printf(seq, "total_data_bk_pkt_queued: %8d\t",
skb_queue_len(&common->tx_queue[BK_Q]));
seq_printf(seq, "total_bk_pkt_freed: %8d\n",
common->tx_stats.total_tx_pkt_freed[BK_Q]);
seq_puts(seq, "\n");
return 0;
}
/**
* rsi_stats_open() - This function calls single open function of seq_file to
* open file and read contents from it.
* @inode: Pointer to the inode structure.
* @file: Pointer to the file structure.
*
* Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
*/
static int rsi_stats_open(struct inode *inode,
struct file *file)
{
return single_open(file, rsi_stats_read, inode->i_private);
}
/**
* rsi_debug_zone_read() - This function display the currently enabled debug zones.
* @seq: Pointer to the sequence file structure.
* @data: Pointer to the data.
*
* Return: 0 on success, -1 on failure.
*/
static int rsi_debug_zone_read(struct seq_file *seq, void *data)
{
rsi_dbg(FSM_ZONE, "%x: rsi_enabled zone", rsi_zone_enabled);
seq_printf(seq, "The zones available are %#x\n",
rsi_zone_enabled);
return 0;
}
/**
* rsi_debug_read() - This function calls single open function of seq_file to
* open file and read contents from it.
* @inode: Pointer to the inode structure.
* @file: Pointer to the file structure.
*
* Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
*/
static int rsi_debug_read(struct inode *inode,
struct file *file)
{
return single_open(file, rsi_debug_zone_read, inode->i_private);
}
/**
* rsi_debug_zone_write() - This function writes into hal queues as per user
* requirement.
* @filp: Pointer to the file structure.
* @buff: Pointer to the character buffer.
* @len: Length of the data to be written into buffer.
* @data: Pointer to the data.
*
* Return: len: Number of bytes read.
*/
static ssize_t rsi_debug_zone_write(struct file *filp,
const char __user *buff,
size_t len,
loff_t *data)
{
unsigned long dbg_zone;
int ret;
if (!len)
return 0;
ret = kstrtoul_from_user(buff, len, 16, &dbg_zone);
if (ret)
return ret;
rsi_zone_enabled = dbg_zone;
return len;
}
#define FOPS(fopen) { \
.owner = THIS_MODULE, \
.open = (fopen), \
.read = seq_read, \
.llseek = seq_lseek, \
}
#define FOPS_RW(fopen, fwrite) { \
.owner = THIS_MODULE, \
.open = (fopen), \
.read = seq_read, \
.llseek = seq_lseek, \
.write = (fwrite), \
}
static const struct rsi_dbg_files dev_debugfs_files[] = {
{"version", 0644, FOPS(rsi_version_open),},
{"stats", 0644, FOPS(rsi_stats_open),},
{"debug_zone", 0666, FOPS_RW(rsi_debug_read, rsi_debug_zone_write),},
{"sdio_stats", 0644, FOPS(rsi_sdio_stats_open),},
};
/**
* rsi_init_dbgfs() - This function initializes the dbgfs entry.
* @adapter: Pointer to the adapter structure.
*
* Return: 0 on success, -1 on failure.
*/
int rsi_init_dbgfs(struct rsi_hw *adapter)
{
struct rsi_common *common = adapter->priv;
struct rsi_debugfs *dev_dbgfs;
char devdir[6];
int ii;
const struct rsi_dbg_files *files;
dev_dbgfs = kzalloc(sizeof(*dev_dbgfs), GFP_KERNEL);
if (!dev_dbgfs)
return -ENOMEM;
adapter->dfsentry = dev_dbgfs;
snprintf(devdir, sizeof(devdir), "%s",
wiphy_name(adapter->hw->wiphy));
dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL);
for (ii = 0; ii < adapter->num_debugfs_entries; ii++) {
files = &dev_debugfs_files[ii];
dev_dbgfs->rsi_files[ii] =
debugfs_create_file(files->name,
files->perms,
dev_dbgfs->subdir,
common,
&files->fops);
}
return 0;
}
EXPORT_SYMBOL_GPL(rsi_init_dbgfs);
/**
* rsi_remove_dbgfs() - Removes the previously created dbgfs file entries
* in the reverse order of creation.
* @adapter: Pointer to the adapter structure.
*
* Return: None.
*/
void rsi_remove_dbgfs(struct rsi_hw *adapter)
{
struct rsi_debugfs *dev_dbgfs = adapter->dfsentry;
if (!dev_dbgfs)
return;
debugfs_remove_recursive(dev_dbgfs->subdir);
}
EXPORT_SYMBOL_GPL(rsi_remove_dbgfs);