1/** 2 * Copyright (c) 2014 Redpine Signals Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17#include "rsi_debugfs.h" 18#include "rsi_sdio.h" 19 20/** 21 * rsi_sdio_stats_read() - This function returns the sdio status of the driver. 22 * @seq: Pointer to the sequence file structure. 23 * @data: Pointer to the data. 24 * 25 * Return: 0 on success, -1 on failure. 26 */ 27static int rsi_sdio_stats_read(struct seq_file *seq, void *data) 28{ 29 struct rsi_common *common = seq->private; 30 struct rsi_hw *adapter = common->priv; 31 struct rsi_91x_sdiodev *dev = 32 (struct rsi_91x_sdiodev *)adapter->rsi_dev; 33 34 seq_printf(seq, "total_sdio_interrupts: %d\n", 35 dev->rx_info.sdio_int_counter); 36 seq_printf(seq, "sdio_msdu_pending_intr_count: %d\n", 37 dev->rx_info.total_sdio_msdu_pending_intr); 38 seq_printf(seq, "sdio_buff_full_count : %d\n", 39 dev->rx_info.buf_full_counter); 40 seq_printf(seq, "sdio_buf_semi_full_count %d\n", 41 dev->rx_info.buf_semi_full_counter); 42 seq_printf(seq, "sdio_unknown_intr_count: %d\n", 43 dev->rx_info.total_sdio_unknown_intr); 44 /* RX Path Stats */ 45 seq_printf(seq, "BUFFER FULL STATUS : %d\n", 46 dev->rx_info.buffer_full); 47 seq_printf(seq, "SEMI BUFFER FULL STATUS : %d\n", 48 dev->rx_info.semi_buffer_full); 49 seq_printf(seq, "MGMT BUFFER FULL STATUS : %d\n", 50 dev->rx_info.mgmt_buffer_full); 51 seq_printf(seq, "BUFFER FULL COUNTER : %d\n", 52 dev->rx_info.buf_full_counter); 53 seq_printf(seq, "BUFFER SEMI FULL COUNTER : %d\n", 54 dev->rx_info.buf_semi_full_counter); 55 seq_printf(seq, "MGMT BUFFER FULL COUNTER : %d\n", 56 dev->rx_info.mgmt_buf_full_counter); 57 58 return 0; 59} 60 61/** 62 * rsi_sdio_stats_open() - This funtion calls single open function of seq_file 63 * to open file and read contents from it. 64 * @inode: Pointer to the inode structure. 65 * @file: Pointer to the file structure. 66 * 67 * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. 68 */ 69static int rsi_sdio_stats_open(struct inode *inode, 70 struct file *file) 71{ 72 return single_open(file, rsi_sdio_stats_read, inode->i_private); 73} 74 75/** 76 * rsi_version_read() - This function gives driver and firmware version number. 77 * @seq: Pointer to the sequence file structure. 78 * @data: Pointer to the data. 79 * 80 * Return: 0 on success, -1 on failure. 81 */ 82static int rsi_version_read(struct seq_file *seq, void *data) 83{ 84 struct rsi_common *common = seq->private; 85 86 common->driver_ver.major = 0; 87 common->driver_ver.minor = 1; 88 common->driver_ver.release_num = 0; 89 common->driver_ver.patch_num = 0; 90 seq_printf(seq, "Driver : %x.%d.%d.%d\nLMAC : %d.%d.%d.%d\n", 91 common->driver_ver.major, 92 common->driver_ver.minor, 93 common->driver_ver.release_num, 94 common->driver_ver.patch_num, 95 common->fw_ver.major, 96 common->fw_ver.minor, 97 common->fw_ver.release_num, 98 common->fw_ver.patch_num); 99 return 0; 100} 101 102/** 103 * rsi_version_open() - This funtion calls single open function of seq_file to 104 * open file and read contents from it. 105 * @inode: Pointer to the inode structure. 106 * @file: Pointer to the file structure. 107 * 108 * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. 109 */ 110static int rsi_version_open(struct inode *inode, 111 struct file *file) 112{ 113 return single_open(file, rsi_version_read, inode->i_private); 114} 115 116/** 117 * rsi_stats_read() - This function return the status of the driver. 118 * @seq: Pointer to the sequence file structure. 119 * @data: Pointer to the data. 120 * 121 * Return: 0 on success, -1 on failure. 122 */ 123static int rsi_stats_read(struct seq_file *seq, void *data) 124{ 125 struct rsi_common *common = seq->private; 126 127 unsigned char fsm_state[][32] = { 128 "FSM_CARD_NOT_READY", 129 "FSM_BOOT_PARAMS_SENT", 130 "FSM_EEPROM_READ_MAC_ADDR", 131 "FSM_RESET_MAC_SENT", 132 "FSM_RADIO_CAPS_SENT", 133 "FSM_BB_RF_PROG_SENT", 134 "FSM_MAC_INIT_DONE" 135 }; 136 seq_puts(seq, "==> RSI STA DRIVER STATUS <==\n"); 137 seq_puts(seq, "DRIVER_FSM_STATE: "); 138 139 if (common->fsm_state <= FSM_MAC_INIT_DONE) 140 seq_printf(seq, "%s", fsm_state[common->fsm_state]); 141 142 seq_printf(seq, "(%d)\n\n", common->fsm_state); 143 144 /* Mgmt TX Path Stats */ 145 seq_printf(seq, "total_mgmt_pkt_send : %d\n", 146 common->tx_stats.total_tx_pkt_send[MGMT_SOFT_Q]); 147 seq_printf(seq, "total_mgmt_pkt_queued : %d\n", 148 skb_queue_len(&common->tx_queue[MGMT_SOFT_Q])); 149 seq_printf(seq, "total_mgmt_pkt_freed : %d\n", 150 common->tx_stats.total_tx_pkt_freed[MGMT_SOFT_Q]); 151 152 /* Data TX Path Stats */ 153 seq_printf(seq, "total_data_vo_pkt_send: %8d\t", 154 common->tx_stats.total_tx_pkt_send[VO_Q]); 155 seq_printf(seq, "total_data_vo_pkt_queued: %8d\t", 156 skb_queue_len(&common->tx_queue[VO_Q])); 157 seq_printf(seq, "total_vo_pkt_freed: %8d\n", 158 common->tx_stats.total_tx_pkt_freed[VO_Q]); 159 seq_printf(seq, "total_data_vi_pkt_send: %8d\t", 160 common->tx_stats.total_tx_pkt_send[VI_Q]); 161 seq_printf(seq, "total_data_vi_pkt_queued: %8d\t", 162 skb_queue_len(&common->tx_queue[VI_Q])); 163 seq_printf(seq, "total_vi_pkt_freed: %8d\n", 164 common->tx_stats.total_tx_pkt_freed[VI_Q]); 165 seq_printf(seq, "total_data_be_pkt_send: %8d\t", 166 common->tx_stats.total_tx_pkt_send[BE_Q]); 167 seq_printf(seq, "total_data_be_pkt_queued: %8d\t", 168 skb_queue_len(&common->tx_queue[BE_Q])); 169 seq_printf(seq, "total_be_pkt_freed: %8d\n", 170 common->tx_stats.total_tx_pkt_freed[BE_Q]); 171 seq_printf(seq, "total_data_bk_pkt_send: %8d\t", 172 common->tx_stats.total_tx_pkt_send[BK_Q]); 173 seq_printf(seq, "total_data_bk_pkt_queued: %8d\t", 174 skb_queue_len(&common->tx_queue[BK_Q])); 175 seq_printf(seq, "total_bk_pkt_freed: %8d\n", 176 common->tx_stats.total_tx_pkt_freed[BK_Q]); 177 178 seq_puts(seq, "\n"); 179 return 0; 180} 181 182/** 183 * rsi_stats_open() - This funtion calls single open function of seq_file to 184 * open file and read contents from it. 185 * @inode: Pointer to the inode structure. 186 * @file: Pointer to the file structure. 187 * 188 * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. 189 */ 190static int rsi_stats_open(struct inode *inode, 191 struct file *file) 192{ 193 return single_open(file, rsi_stats_read, inode->i_private); 194} 195 196/** 197 * rsi_debug_zone_read() - This function display the currently enabled debug zones. 198 * @seq: Pointer to the sequence file structure. 199 * @data: Pointer to the data. 200 * 201 * Return: 0 on success, -1 on failure. 202 */ 203static int rsi_debug_zone_read(struct seq_file *seq, void *data) 204{ 205 rsi_dbg(FSM_ZONE, "%x: rsi_enabled zone", rsi_zone_enabled); 206 seq_printf(seq, "The zones available are %#x\n", 207 rsi_zone_enabled); 208 return 0; 209} 210 211/** 212 * rsi_debug_read() - This funtion calls single open function of seq_file to 213 * open file and read contents from it. 214 * @inode: Pointer to the inode structure. 215 * @file: Pointer to the file structure. 216 * 217 * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure. 218 */ 219static int rsi_debug_read(struct inode *inode, 220 struct file *file) 221{ 222 return single_open(file, rsi_debug_zone_read, inode->i_private); 223} 224 225/** 226 * rsi_debug_zone_write() - This function writes into hal queues as per user 227 * requirement. 228 * @filp: Pointer to the file structure. 229 * @buff: Pointer to the character buffer. 230 * @len: Length of the data to be written into buffer. 231 * @data: Pointer to the data. 232 * 233 * Return: len: Number of bytes read. 234 */ 235static ssize_t rsi_debug_zone_write(struct file *filp, 236 const char __user *buff, 237 size_t len, 238 loff_t *data) 239{ 240 unsigned long dbg_zone; 241 int ret; 242 243 if (!len) 244 return 0; 245 246 ret = kstrtoul_from_user(buff, len, 16, &dbg_zone); 247 248 if (ret) 249 return ret; 250 251 rsi_zone_enabled = dbg_zone; 252 return len; 253} 254 255#define FOPS(fopen) { \ 256 .owner = THIS_MODULE, \ 257 .open = (fopen), \ 258 .read = seq_read, \ 259 .llseek = seq_lseek, \ 260} 261 262#define FOPS_RW(fopen, fwrite) { \ 263 .owner = THIS_MODULE, \ 264 .open = (fopen), \ 265 .read = seq_read, \ 266 .llseek = seq_lseek, \ 267 .write = (fwrite), \ 268} 269 270static const struct rsi_dbg_files dev_debugfs_files[] = { 271 {"version", 0644, FOPS(rsi_version_open),}, 272 {"stats", 0644, FOPS(rsi_stats_open),}, 273 {"debug_zone", 0666, FOPS_RW(rsi_debug_read, rsi_debug_zone_write),}, 274 {"sdio_stats", 0644, FOPS(rsi_sdio_stats_open),}, 275}; 276 277/** 278 * rsi_init_dbgfs() - This function initializes the dbgfs entry. 279 * @adapter: Pointer to the adapter structure. 280 * 281 * Return: 0 on success, -1 on failure. 282 */ 283int rsi_init_dbgfs(struct rsi_hw *adapter) 284{ 285 struct rsi_common *common = adapter->priv; 286 struct rsi_debugfs *dev_dbgfs; 287 char devdir[6]; 288 int ii; 289 const struct rsi_dbg_files *files; 290 291 dev_dbgfs = kzalloc(sizeof(*dev_dbgfs), GFP_KERNEL); 292 if (!dev_dbgfs) 293 return -ENOMEM; 294 295 adapter->dfsentry = dev_dbgfs; 296 297 snprintf(devdir, sizeof(devdir), "%s", 298 wiphy_name(adapter->hw->wiphy)); 299 300 dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL); 301 302 if (!dev_dbgfs->subdir) { 303 kfree(dev_dbgfs); 304 return -ENOMEM; 305 } 306 307 for (ii = 0; ii < adapter->num_debugfs_entries; ii++) { 308 files = &dev_debugfs_files[ii]; 309 dev_dbgfs->rsi_files[ii] = 310 debugfs_create_file(files->name, 311 files->perms, 312 dev_dbgfs->subdir, 313 common, 314 &files->fops); 315 } 316 return 0; 317} 318EXPORT_SYMBOL_GPL(rsi_init_dbgfs); 319 320/** 321 * rsi_remove_dbgfs() - Removes the previously created dbgfs file entries 322 * in the reverse order of creation. 323 * @adapter: Pointer to the adapter structure. 324 * 325 * Return: None. 326 */ 327void rsi_remove_dbgfs(struct rsi_hw *adapter) 328{ 329 struct rsi_debugfs *dev_dbgfs = adapter->dfsentry; 330 331 if (!dev_dbgfs) 332 return; 333 334 debugfs_remove_recursive(dev_dbgfs->subdir); 335} 336EXPORT_SYMBOL_GPL(rsi_remove_dbgfs); 337