Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 2 | /* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. */ |
| 3 | |
| 4 | #include <linux/err.h> |
| 5 | #include <linux/seq_file.h> |
| 6 | #include <linux/debugfs.h> |
| 7 | #include "main.h" |
| 8 | #include "debug.h" |
| 9 | #include "pci.h" |
| 10 | |
| 11 | void *cnss_ipc_log_context; |
| 12 | |
| 13 | static int cnss_pin_connect_show(struct seq_file *s, void *data) |
| 14 | { |
| 15 | struct cnss_plat_data *cnss_priv = s->private; |
| 16 | |
| 17 | seq_puts(s, "Pin connect results\n"); |
| 18 | seq_printf(s, "FW power pin result: %04x\n", |
| 19 | cnss_priv->pin_result.fw_pwr_pin_result); |
| 20 | seq_printf(s, "FW PHY IO pin result: %04x\n", |
| 21 | cnss_priv->pin_result.fw_phy_io_pin_result); |
| 22 | seq_printf(s, "FW RF pin result: %04x\n", |
| 23 | cnss_priv->pin_result.fw_rf_pin_result); |
| 24 | seq_printf(s, "Host pin result: %04x\n", |
| 25 | cnss_priv->pin_result.host_pin_result); |
| 26 | seq_puts(s, "\n"); |
| 27 | |
| 28 | return 0; |
| 29 | } |
| 30 | |
| 31 | static int cnss_pin_connect_open(struct inode *inode, struct file *file) |
| 32 | { |
| 33 | return single_open(file, cnss_pin_connect_show, inode->i_private); |
| 34 | } |
| 35 | |
| 36 | static const struct file_operations cnss_pin_connect_fops = { |
| 37 | .read = seq_read, |
| 38 | .release = single_release, |
| 39 | .open = cnss_pin_connect_open, |
| 40 | .owner = THIS_MODULE, |
| 41 | .llseek = seq_lseek, |
| 42 | }; |
| 43 | |
| 44 | static int cnss_stats_show_state(struct seq_file *s, |
| 45 | struct cnss_plat_data *plat_priv) |
| 46 | { |
| 47 | enum cnss_driver_state i; |
| 48 | int skip = 0; |
| 49 | unsigned long state; |
| 50 | |
| 51 | seq_printf(s, "\nState: 0x%lx(", plat_priv->driver_state); |
| 52 | for (i = 0, state = plat_priv->driver_state; state != 0; |
| 53 | state >>= 1, i++) { |
| 54 | if (!(state & 0x1)) |
| 55 | continue; |
| 56 | |
| 57 | if (skip++) |
| 58 | seq_puts(s, " | "); |
| 59 | |
| 60 | switch (i) { |
| 61 | case CNSS_QMI_WLFW_CONNECTED: |
| 62 | seq_puts(s, "QMI_WLFW_CONNECTED"); |
| 63 | continue; |
| 64 | case CNSS_FW_MEM_READY: |
| 65 | seq_puts(s, "FW_MEM_READY"); |
| 66 | continue; |
| 67 | case CNSS_FW_READY: |
| 68 | seq_puts(s, "FW_READY"); |
| 69 | continue; |
| 70 | case CNSS_COLD_BOOT_CAL: |
| 71 | seq_puts(s, "COLD_BOOT_CAL"); |
| 72 | continue; |
| 73 | case CNSS_DRIVER_LOADING: |
| 74 | seq_puts(s, "DRIVER_LOADING"); |
| 75 | continue; |
| 76 | case CNSS_DRIVER_UNLOADING: |
| 77 | seq_puts(s, "DRIVER_UNLOADING"); |
| 78 | continue; |
Yue Ma | 2b45e36 | 2019-05-02 15:59:06 -0700 | [diff] [blame] | 79 | case CNSS_DRIVER_IDLE_RESTART: |
| 80 | seq_puts(s, "IDLE_RESTART"); |
| 81 | continue; |
| 82 | case CNSS_DRIVER_IDLE_SHUTDOWN: |
| 83 | seq_puts(s, "IDLE_SHUTDOWN"); |
| 84 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 85 | case CNSS_DRIVER_PROBED: |
| 86 | seq_puts(s, "DRIVER_PROBED"); |
| 87 | continue; |
| 88 | case CNSS_DRIVER_RECOVERY: |
| 89 | seq_puts(s, "DRIVER_RECOVERY"); |
| 90 | continue; |
| 91 | case CNSS_FW_BOOT_RECOVERY: |
| 92 | seq_puts(s, "FW_BOOT_RECOVERY"); |
| 93 | continue; |
| 94 | case CNSS_DEV_ERR_NOTIFY: |
| 95 | seq_puts(s, "DEV_ERR"); |
| 96 | continue; |
| 97 | case CNSS_DRIVER_DEBUG: |
| 98 | seq_puts(s, "DRIVER_DEBUG"); |
| 99 | continue; |
Yuanyuan Liu | 659d5f3 | 2019-01-25 14:29:22 -0800 | [diff] [blame] | 100 | case CNSS_COEX_CONNECTED: |
| 101 | seq_puts(s, "COEX_CONNECTED"); |
| 102 | continue; |
Yuanyuan Liu | cdb0407 | 2019-06-06 11:18:49 -0700 | [diff] [blame] | 103 | case CNSS_IMS_CONNECTED: |
| 104 | seq_puts(s, "IMS_CONNECTED"); |
| 105 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | seq_printf(s, "UNKNOWN-%d", i); |
| 109 | } |
| 110 | seq_puts(s, ")\n"); |
| 111 | |
| 112 | return 0; |
| 113 | } |
| 114 | |
| 115 | static int cnss_stats_show(struct seq_file *s, void *data) |
| 116 | { |
| 117 | struct cnss_plat_data *plat_priv = s->private; |
| 118 | |
| 119 | cnss_stats_show_state(s, plat_priv); |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static int cnss_stats_open(struct inode *inode, struct file *file) |
| 125 | { |
| 126 | return single_open(file, cnss_stats_show, inode->i_private); |
| 127 | } |
| 128 | |
| 129 | static const struct file_operations cnss_stats_fops = { |
| 130 | .read = seq_read, |
| 131 | .release = single_release, |
| 132 | .open = cnss_stats_open, |
| 133 | .owner = THIS_MODULE, |
| 134 | .llseek = seq_lseek, |
| 135 | }; |
| 136 | |
| 137 | static ssize_t cnss_dev_boot_debug_write(struct file *fp, |
| 138 | const char __user *user_buf, |
| 139 | size_t count, loff_t *off) |
| 140 | { |
| 141 | struct cnss_plat_data *plat_priv = |
| 142 | ((struct seq_file *)fp->private_data)->private; |
| 143 | struct cnss_pci_data *pci_priv; |
| 144 | char buf[64]; |
| 145 | char *cmd; |
| 146 | unsigned int len = 0; |
| 147 | int ret = 0; |
| 148 | |
| 149 | if (!plat_priv) |
| 150 | return -ENODEV; |
| 151 | |
| 152 | pci_priv = plat_priv->bus_priv; |
| 153 | if (!pci_priv) |
| 154 | return -ENODEV; |
| 155 | |
| 156 | len = min(count, sizeof(buf) - 1); |
| 157 | if (copy_from_user(buf, user_buf, len)) |
| 158 | return -EFAULT; |
| 159 | |
| 160 | buf[len] = '\0'; |
| 161 | cmd = buf; |
| 162 | |
| 163 | if (sysfs_streq(cmd, "on")) { |
| 164 | ret = cnss_power_on_device(plat_priv); |
| 165 | } else if (sysfs_streq(cmd, "off")) { |
| 166 | cnss_power_off_device(plat_priv); |
| 167 | } else if (sysfs_streq(cmd, "enumerate")) { |
| 168 | ret = cnss_pci_init(plat_priv); |
| 169 | } else if (sysfs_streq(cmd, "download")) { |
| 170 | set_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 171 | ret = cnss_pci_start_mhi(pci_priv); |
| 172 | } else if (sysfs_streq(cmd, "linkup")) { |
| 173 | ret = cnss_resume_pci_link(pci_priv); |
| 174 | } else if (sysfs_streq(cmd, "linkdown")) { |
| 175 | ret = cnss_suspend_pci_link(pci_priv); |
| 176 | } else if (sysfs_streq(cmd, "powerup")) { |
| 177 | set_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 178 | ret = cnss_driver_event_post(plat_priv, |
| 179 | CNSS_DRIVER_EVENT_POWER_UP, |
| 180 | CNSS_EVENT_SYNC, NULL); |
| 181 | } else if (sysfs_streq(cmd, "shutdown")) { |
| 182 | ret = cnss_driver_event_post(plat_priv, |
| 183 | CNSS_DRIVER_EVENT_POWER_DOWN, |
| 184 | 0, NULL); |
| 185 | clear_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 186 | } else if (sysfs_streq(cmd, "assert")) { |
| 187 | ret = cnss_force_fw_assert(&pci_priv->pci_dev->dev); |
| 188 | } else { |
| 189 | cnss_pr_err("Device boot debugfs command is invalid\n"); |
| 190 | ret = -EINVAL; |
| 191 | } |
| 192 | |
| 193 | if (ret) |
| 194 | return ret; |
| 195 | |
| 196 | return count; |
| 197 | } |
| 198 | |
| 199 | static int cnss_dev_boot_debug_show(struct seq_file *s, void *data) |
| 200 | { |
| 201 | seq_puts(s, "\nUsage: echo <action> > <debugfs_path>/cnss/dev_boot\n"); |
| 202 | seq_puts(s, "<action> can be one of below:\n"); |
| 203 | seq_puts(s, "on: turn on device power, assert WLAN_EN\n"); |
| 204 | seq_puts(s, "off: de-assert WLAN_EN, turn off device power\n"); |
| 205 | seq_puts(s, "enumerate: de-assert PERST, enumerate PCIe\n"); |
| 206 | seq_puts(s, "download: download FW and do QMI handshake with FW\n"); |
| 207 | seq_puts(s, "linkup: bring up PCIe link\n"); |
| 208 | seq_puts(s, "linkdown: bring down PCIe link\n"); |
| 209 | seq_puts(s, "powerup: full power on sequence to boot device, download FW and do QMI handshake with FW\n"); |
| 210 | seq_puts(s, "shutdown: full power off sequence to shutdown device\n"); |
| 211 | seq_puts(s, "assert: trigger firmware assert\n"); |
| 212 | |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | static int cnss_dev_boot_debug_open(struct inode *inode, struct file *file) |
| 217 | { |
| 218 | return single_open(file, cnss_dev_boot_debug_show, inode->i_private); |
| 219 | } |
| 220 | |
| 221 | static const struct file_operations cnss_dev_boot_debug_fops = { |
| 222 | .read = seq_read, |
| 223 | .write = cnss_dev_boot_debug_write, |
| 224 | .release = single_release, |
| 225 | .open = cnss_dev_boot_debug_open, |
| 226 | .owner = THIS_MODULE, |
| 227 | .llseek = seq_lseek, |
| 228 | }; |
| 229 | |
| 230 | static int cnss_reg_read_debug_show(struct seq_file *s, void *data) |
| 231 | { |
| 232 | struct cnss_plat_data *plat_priv = s->private; |
| 233 | |
| 234 | mutex_lock(&plat_priv->dev_lock); |
| 235 | if (!plat_priv->diag_reg_read_buf) { |
| 236 | seq_puts(s, "\nUsage: echo <mem_type> <offset> <data_len> > <debugfs_path>/cnss/reg_read\n"); |
| 237 | mutex_unlock(&plat_priv->dev_lock); |
| 238 | return 0; |
| 239 | } |
| 240 | |
| 241 | seq_printf(s, "\nRegister read, address: 0x%x memory type: 0x%x length: 0x%x\n\n", |
| 242 | plat_priv->diag_reg_read_addr, |
| 243 | plat_priv->diag_reg_read_mem_type, |
| 244 | plat_priv->diag_reg_read_len); |
| 245 | |
| 246 | seq_hex_dump(s, "", DUMP_PREFIX_OFFSET, 32, 4, |
| 247 | plat_priv->diag_reg_read_buf, |
| 248 | plat_priv->diag_reg_read_len, false); |
| 249 | |
| 250 | plat_priv->diag_reg_read_len = 0; |
| 251 | kfree(plat_priv->diag_reg_read_buf); |
| 252 | plat_priv->diag_reg_read_buf = NULL; |
| 253 | mutex_unlock(&plat_priv->dev_lock); |
| 254 | |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static ssize_t cnss_reg_read_debug_write(struct file *fp, |
| 259 | const char __user *user_buf, |
| 260 | size_t count, loff_t *off) |
| 261 | { |
| 262 | struct cnss_plat_data *plat_priv = |
| 263 | ((struct seq_file *)fp->private_data)->private; |
| 264 | char buf[64]; |
| 265 | char *sptr, *token; |
| 266 | unsigned int len = 0; |
| 267 | u32 reg_offset, mem_type; |
| 268 | u32 data_len = 0; |
| 269 | u8 *reg_buf = NULL; |
| 270 | const char *delim = " "; |
| 271 | int ret = 0; |
| 272 | |
| 273 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 274 | cnss_pr_err("Firmware is not ready yet\n"); |
| 275 | return -EINVAL; |
| 276 | } |
| 277 | |
| 278 | len = min(count, sizeof(buf) - 1); |
| 279 | if (copy_from_user(buf, user_buf, len)) |
| 280 | return -EFAULT; |
| 281 | |
| 282 | buf[len] = '\0'; |
| 283 | sptr = buf; |
| 284 | |
| 285 | token = strsep(&sptr, delim); |
| 286 | if (!token) |
| 287 | return -EINVAL; |
| 288 | |
| 289 | if (!sptr) |
| 290 | return -EINVAL; |
| 291 | |
| 292 | if (kstrtou32(token, 0, &mem_type)) |
| 293 | return -EINVAL; |
| 294 | |
| 295 | token = strsep(&sptr, delim); |
| 296 | if (!token) |
| 297 | return -EINVAL; |
| 298 | |
| 299 | if (!sptr) |
| 300 | return -EINVAL; |
| 301 | |
| 302 | if (kstrtou32(token, 0, ®_offset)) |
| 303 | return -EINVAL; |
| 304 | |
| 305 | token = strsep(&sptr, delim); |
| 306 | if (!token) |
| 307 | return -EINVAL; |
| 308 | |
| 309 | if (kstrtou32(token, 0, &data_len)) |
| 310 | return -EINVAL; |
| 311 | |
| 312 | mutex_lock(&plat_priv->dev_lock); |
| 313 | kfree(plat_priv->diag_reg_read_buf); |
| 314 | plat_priv->diag_reg_read_buf = NULL; |
| 315 | |
| 316 | reg_buf = kzalloc(data_len, GFP_KERNEL); |
| 317 | if (!reg_buf) { |
| 318 | mutex_unlock(&plat_priv->dev_lock); |
| 319 | return -ENOMEM; |
| 320 | } |
| 321 | |
| 322 | ret = cnss_wlfw_athdiag_read_send_sync(plat_priv, reg_offset, |
| 323 | mem_type, data_len, |
| 324 | reg_buf); |
| 325 | if (ret) { |
| 326 | kfree(reg_buf); |
| 327 | mutex_unlock(&plat_priv->dev_lock); |
| 328 | return ret; |
| 329 | } |
| 330 | |
| 331 | plat_priv->diag_reg_read_addr = reg_offset; |
| 332 | plat_priv->diag_reg_read_mem_type = mem_type; |
| 333 | plat_priv->diag_reg_read_len = data_len; |
| 334 | plat_priv->diag_reg_read_buf = reg_buf; |
| 335 | mutex_unlock(&plat_priv->dev_lock); |
| 336 | |
| 337 | return count; |
| 338 | } |
| 339 | |
| 340 | static int cnss_reg_read_debug_open(struct inode *inode, struct file *file) |
| 341 | { |
| 342 | return single_open(file, cnss_reg_read_debug_show, inode->i_private); |
| 343 | } |
| 344 | |
| 345 | static const struct file_operations cnss_reg_read_debug_fops = { |
| 346 | .read = seq_read, |
| 347 | .write = cnss_reg_read_debug_write, |
| 348 | .open = cnss_reg_read_debug_open, |
| 349 | .owner = THIS_MODULE, |
| 350 | .llseek = seq_lseek, |
| 351 | }; |
| 352 | |
| 353 | static int cnss_reg_write_debug_show(struct seq_file *s, void *data) |
| 354 | { |
| 355 | seq_puts(s, "\nUsage: echo <mem_type> <offset> <reg_val> > <debugfs_path>/cnss/reg_write\n"); |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static ssize_t cnss_reg_write_debug_write(struct file *fp, |
| 361 | const char __user *user_buf, |
| 362 | size_t count, loff_t *off) |
| 363 | { |
| 364 | struct cnss_plat_data *plat_priv = |
| 365 | ((struct seq_file *)fp->private_data)->private; |
| 366 | char buf[64]; |
| 367 | char *sptr, *token; |
| 368 | unsigned int len = 0; |
| 369 | u32 reg_offset, mem_type, reg_val; |
| 370 | const char *delim = " "; |
| 371 | int ret = 0; |
| 372 | |
| 373 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 374 | cnss_pr_err("Firmware is not ready yet\n"); |
| 375 | return -EINVAL; |
| 376 | } |
| 377 | |
| 378 | len = min(count, sizeof(buf) - 1); |
| 379 | if (copy_from_user(buf, user_buf, len)) |
| 380 | return -EFAULT; |
| 381 | |
| 382 | buf[len] = '\0'; |
| 383 | sptr = buf; |
| 384 | |
| 385 | token = strsep(&sptr, delim); |
| 386 | if (!token) |
| 387 | return -EINVAL; |
| 388 | |
| 389 | if (!sptr) |
| 390 | return -EINVAL; |
| 391 | |
| 392 | if (kstrtou32(token, 0, &mem_type)) |
| 393 | return -EINVAL; |
| 394 | |
| 395 | token = strsep(&sptr, delim); |
| 396 | if (!token) |
| 397 | return -EINVAL; |
| 398 | |
| 399 | if (!sptr) |
| 400 | return -EINVAL; |
| 401 | |
| 402 | if (kstrtou32(token, 0, ®_offset)) |
| 403 | return -EINVAL; |
| 404 | |
| 405 | token = strsep(&sptr, delim); |
| 406 | if (!token) |
| 407 | return -EINVAL; |
| 408 | |
| 409 | if (kstrtou32(token, 0, ®_val)) |
| 410 | return -EINVAL; |
| 411 | |
| 412 | ret = cnss_wlfw_athdiag_write_send_sync(plat_priv, reg_offset, mem_type, |
| 413 | sizeof(u32), |
| 414 | (u8 *)®_val); |
| 415 | if (ret) |
| 416 | return ret; |
| 417 | |
| 418 | return count; |
| 419 | } |
| 420 | |
| 421 | static int cnss_reg_write_debug_open(struct inode *inode, struct file *file) |
| 422 | { |
| 423 | return single_open(file, cnss_reg_write_debug_show, inode->i_private); |
| 424 | } |
| 425 | |
| 426 | static const struct file_operations cnss_reg_write_debug_fops = { |
| 427 | .read = seq_read, |
| 428 | .write = cnss_reg_write_debug_write, |
| 429 | .open = cnss_reg_write_debug_open, |
| 430 | .owner = THIS_MODULE, |
| 431 | .llseek = seq_lseek, |
| 432 | }; |
| 433 | |
| 434 | static ssize_t cnss_runtime_pm_debug_write(struct file *fp, |
| 435 | const char __user *user_buf, |
| 436 | size_t count, loff_t *off) |
| 437 | { |
| 438 | struct cnss_plat_data *plat_priv = |
| 439 | ((struct seq_file *)fp->private_data)->private; |
| 440 | struct cnss_pci_data *pci_priv; |
| 441 | char buf[64]; |
| 442 | char *cmd; |
| 443 | unsigned int len = 0; |
| 444 | int ret = 0; |
| 445 | |
| 446 | if (!plat_priv) |
| 447 | return -ENODEV; |
| 448 | |
| 449 | pci_priv = plat_priv->bus_priv; |
| 450 | if (!pci_priv) |
| 451 | return -ENODEV; |
| 452 | |
| 453 | len = min(count, sizeof(buf) - 1); |
| 454 | if (copy_from_user(buf, user_buf, len)) |
| 455 | return -EFAULT; |
| 456 | |
| 457 | buf[len] = '\0'; |
| 458 | cmd = buf; |
| 459 | |
| 460 | if (sysfs_streq(cmd, "usage_count")) { |
| 461 | cnss_pci_pm_runtime_show_usage_count(pci_priv); |
Yue Ma | 6476dc9 | 2019-05-03 11:21:37 -0700 | [diff] [blame] | 462 | } else if (sysfs_streq(cmd, "request_resume")) { |
| 463 | ret = cnss_pci_pm_request_resume(pci_priv); |
| 464 | } else if (sysfs_streq(cmd, "resume")) { |
| 465 | ret = cnss_pci_pm_runtime_resume(pci_priv); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 466 | } else if (sysfs_streq(cmd, "get")) { |
| 467 | ret = cnss_pci_pm_runtime_get(pci_priv); |
| 468 | } else if (sysfs_streq(cmd, "get_noresume")) { |
| 469 | cnss_pci_pm_runtime_get_noresume(pci_priv); |
| 470 | } else if (sysfs_streq(cmd, "put_autosuspend")) { |
| 471 | ret = cnss_pci_pm_runtime_put_autosuspend(pci_priv); |
| 472 | } else if (sysfs_streq(cmd, "put_noidle")) { |
| 473 | cnss_pci_pm_runtime_put_noidle(pci_priv); |
| 474 | } else if (sysfs_streq(cmd, "mark_last_busy")) { |
| 475 | cnss_pci_pm_runtime_mark_last_busy(pci_priv); |
| 476 | } else { |
| 477 | cnss_pr_err("Runtime PM debugfs command is invalid\n"); |
| 478 | ret = -EINVAL; |
| 479 | } |
| 480 | |
| 481 | if (ret) |
| 482 | return ret; |
| 483 | |
| 484 | return count; |
| 485 | } |
| 486 | |
| 487 | static int cnss_runtime_pm_debug_show(struct seq_file *s, void *data) |
| 488 | { |
| 489 | seq_puts(s, "\nUsage: echo <action> > <debugfs_path>/cnss/runtime_pm\n"); |
| 490 | seq_puts(s, "<action> can be one of below:\n"); |
| 491 | seq_puts(s, "usage_count: get runtime PM usage count\n"); |
| 492 | seq_puts(s, "get: do runtime PM get\n"); |
| 493 | seq_puts(s, "get_noresume: do runtime PM get noresume\n"); |
| 494 | seq_puts(s, "put_noidle: do runtime PM put noidle\n"); |
| 495 | seq_puts(s, "put_autosuspend: do runtime PM put autosuspend\n"); |
| 496 | seq_puts(s, "mark_last_busy: do runtime PM mark last busy\n"); |
| 497 | |
| 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | static int cnss_runtime_pm_debug_open(struct inode *inode, struct file *file) |
| 502 | { |
| 503 | return single_open(file, cnss_runtime_pm_debug_show, inode->i_private); |
| 504 | } |
| 505 | |
| 506 | static const struct file_operations cnss_runtime_pm_debug_fops = { |
| 507 | .read = seq_read, |
| 508 | .write = cnss_runtime_pm_debug_write, |
| 509 | .open = cnss_runtime_pm_debug_open, |
| 510 | .owner = THIS_MODULE, |
| 511 | .llseek = seq_lseek, |
| 512 | }; |
| 513 | |
| 514 | static ssize_t cnss_control_params_debug_write(struct file *fp, |
| 515 | const char __user *user_buf, |
| 516 | size_t count, loff_t *off) |
| 517 | { |
| 518 | struct cnss_plat_data *plat_priv = |
| 519 | ((struct seq_file *)fp->private_data)->private; |
| 520 | char buf[64]; |
| 521 | char *sptr, *token; |
| 522 | char *cmd; |
| 523 | u32 val; |
| 524 | unsigned int len = 0; |
| 525 | const char *delim = " "; |
| 526 | |
| 527 | if (!plat_priv) |
| 528 | return -ENODEV; |
| 529 | |
| 530 | len = min(count, sizeof(buf) - 1); |
| 531 | if (copy_from_user(buf, user_buf, len)) |
| 532 | return -EFAULT; |
| 533 | |
| 534 | buf[len] = '\0'; |
| 535 | sptr = buf; |
| 536 | |
| 537 | token = strsep(&sptr, delim); |
| 538 | if (!token) |
| 539 | return -EINVAL; |
| 540 | if (!sptr) |
| 541 | return -EINVAL; |
| 542 | cmd = token; |
| 543 | |
| 544 | token = strsep(&sptr, delim); |
| 545 | if (!token) |
| 546 | return -EINVAL; |
| 547 | if (kstrtou32(token, 0, &val)) |
| 548 | return -EINVAL; |
| 549 | |
| 550 | if (strcmp(cmd, "quirks") == 0) |
| 551 | plat_priv->ctrl_params.quirks = val; |
| 552 | else if (strcmp(cmd, "mhi_timeout") == 0) |
| 553 | plat_priv->ctrl_params.mhi_timeout = val; |
| 554 | else if (strcmp(cmd, "qmi_timeout") == 0) |
| 555 | plat_priv->ctrl_params.qmi_timeout = val; |
| 556 | else if (strcmp(cmd, "bdf_type") == 0) |
| 557 | plat_priv->ctrl_params.bdf_type = val; |
Yue Ma | 8ee8175 | 2019-07-10 11:56:51 -0700 | [diff] [blame^] | 558 | else if (strcmp(cmd, "time_sync_period") == 0) |
| 559 | plat_priv->ctrl_params.time_sync_period = val; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 560 | else |
| 561 | return -EINVAL; |
| 562 | |
| 563 | return count; |
| 564 | } |
| 565 | |
| 566 | static int cnss_show_quirks_state(struct seq_file *s, |
| 567 | struct cnss_plat_data *plat_priv) |
| 568 | { |
| 569 | enum cnss_debug_quirks i; |
| 570 | int skip = 0; |
| 571 | unsigned long state; |
| 572 | |
| 573 | seq_printf(s, "quirks: 0x%lx (", plat_priv->ctrl_params.quirks); |
| 574 | for (i = 0, state = plat_priv->ctrl_params.quirks; |
| 575 | state != 0; state >>= 1, i++) { |
| 576 | if (!(state & 0x1)) |
| 577 | continue; |
| 578 | if (skip++) |
| 579 | seq_puts(s, " | "); |
| 580 | |
| 581 | switch (i) { |
| 582 | case LINK_DOWN_SELF_RECOVERY: |
| 583 | seq_puts(s, "LINK_DOWN_SELF_RECOVERY"); |
| 584 | continue; |
| 585 | case SKIP_DEVICE_BOOT: |
| 586 | seq_puts(s, "SKIP_DEVICE_BOOT"); |
| 587 | continue; |
| 588 | case USE_CORE_ONLY_FW: |
| 589 | seq_puts(s, "USE_CORE_ONLY_FW"); |
| 590 | continue; |
| 591 | case SKIP_RECOVERY: |
| 592 | seq_puts(s, "SKIP_RECOVERY"); |
| 593 | continue; |
| 594 | case QMI_BYPASS: |
| 595 | seq_puts(s, "QMI_BYPASS"); |
| 596 | continue; |
| 597 | case ENABLE_WALTEST: |
| 598 | seq_puts(s, "WALTEST"); |
| 599 | continue; |
| 600 | case ENABLE_PCI_LINK_DOWN_PANIC: |
| 601 | seq_puts(s, "PCI_LINK_DOWN_PANIC"); |
| 602 | continue; |
| 603 | case FBC_BYPASS: |
| 604 | seq_puts(s, "FBC_BYPASS"); |
| 605 | continue; |
| 606 | case ENABLE_DAEMON_SUPPORT: |
| 607 | seq_puts(s, "DAEMON_SUPPORT"); |
| 608 | continue; |
Yue Ma | f28455c | 2019-04-09 18:17:03 -0700 | [diff] [blame] | 609 | case DISABLE_DRV: |
| 610 | seq_puts(s, "DISABLE_DRV"); |
| 611 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | seq_printf(s, "UNKNOWN-%d", i); |
| 615 | } |
| 616 | seq_puts(s, ")\n"); |
| 617 | return 0; |
| 618 | } |
| 619 | |
| 620 | static int cnss_control_params_debug_show(struct seq_file *s, void *data) |
| 621 | { |
| 622 | struct cnss_plat_data *cnss_priv = s->private; |
| 623 | |
| 624 | seq_puts(s, "\nUsage: echo <params_name> <value> > <debugfs_path>/cnss/control_params\n"); |
| 625 | seq_puts(s, "<params_name> can be one of below:\n"); |
| 626 | seq_puts(s, "quirks: Debug quirks for driver\n"); |
| 627 | seq_puts(s, "mhi_timeout: Timeout for MHI operation in milliseconds\n"); |
| 628 | seq_puts(s, "qmi_timeout: Timeout for QMI message in milliseconds\n"); |
| 629 | seq_puts(s, "bdf_type: Type of board data file to be downloaded\n"); |
Yue Ma | 8ee8175 | 2019-07-10 11:56:51 -0700 | [diff] [blame^] | 630 | seq_puts(s, "time_sync_period: Time period to do time sync with device in milliseconds\n"); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 631 | |
| 632 | seq_puts(s, "\nCurrent value:\n"); |
| 633 | cnss_show_quirks_state(s, cnss_priv); |
| 634 | seq_printf(s, "mhi_timeout: %u\n", cnss_priv->ctrl_params.mhi_timeout); |
| 635 | seq_printf(s, "qmi_timeout: %u\n", cnss_priv->ctrl_params.qmi_timeout); |
| 636 | seq_printf(s, "bdf_type: %u\n", cnss_priv->ctrl_params.bdf_type); |
Yue Ma | 8ee8175 | 2019-07-10 11:56:51 -0700 | [diff] [blame^] | 637 | seq_printf(s, "time_sync_period: %u\n", |
| 638 | cnss_priv->ctrl_params.time_sync_period); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 639 | |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static int cnss_control_params_debug_open(struct inode *inode, |
| 644 | struct file *file) |
| 645 | { |
| 646 | return single_open(file, cnss_control_params_debug_show, |
| 647 | inode->i_private); |
| 648 | } |
| 649 | |
| 650 | static const struct file_operations cnss_control_params_debug_fops = { |
| 651 | .read = seq_read, |
| 652 | .write = cnss_control_params_debug_write, |
| 653 | .open = cnss_control_params_debug_open, |
| 654 | .owner = THIS_MODULE, |
| 655 | .llseek = seq_lseek, |
| 656 | }; |
| 657 | |
| 658 | #ifdef CONFIG_CNSS2_DEBUG |
| 659 | static int cnss_create_debug_only_node(struct cnss_plat_data *plat_priv) |
| 660 | { |
| 661 | struct dentry *root_dentry = plat_priv->root_dentry; |
| 662 | |
| 663 | debugfs_create_file("dev_boot", 0600, root_dentry, plat_priv, |
| 664 | &cnss_dev_boot_debug_fops); |
| 665 | debugfs_create_file("reg_read", 0600, root_dentry, plat_priv, |
| 666 | &cnss_reg_read_debug_fops); |
| 667 | debugfs_create_file("reg_write", 0600, root_dentry, plat_priv, |
| 668 | &cnss_reg_write_debug_fops); |
| 669 | debugfs_create_file("runtime_pm", 0600, root_dentry, plat_priv, |
| 670 | &cnss_runtime_pm_debug_fops); |
| 671 | debugfs_create_file("control_params", 0600, root_dentry, plat_priv, |
| 672 | &cnss_control_params_debug_fops); |
| 673 | |
| 674 | return 0; |
| 675 | } |
| 676 | #else |
| 677 | static int cnss_create_debug_only_node(struct cnss_plat_data *plat_priv) |
| 678 | { |
| 679 | return 0; |
| 680 | } |
| 681 | #endif |
| 682 | |
| 683 | int cnss_debugfs_create(struct cnss_plat_data *plat_priv) |
| 684 | { |
| 685 | int ret = 0; |
| 686 | struct dentry *root_dentry; |
| 687 | |
| 688 | root_dentry = debugfs_create_dir("cnss", 0); |
| 689 | if (IS_ERR(root_dentry)) { |
| 690 | ret = PTR_ERR(root_dentry); |
| 691 | cnss_pr_err("Unable to create debugfs %d\n", ret); |
| 692 | goto out; |
| 693 | } |
| 694 | |
| 695 | plat_priv->root_dentry = root_dentry; |
| 696 | |
| 697 | debugfs_create_file("pin_connect_result", 0644, root_dentry, plat_priv, |
| 698 | &cnss_pin_connect_fops); |
| 699 | debugfs_create_file("stats", 0644, root_dentry, plat_priv, |
| 700 | &cnss_stats_fops); |
| 701 | |
| 702 | cnss_create_debug_only_node(plat_priv); |
| 703 | |
| 704 | out: |
| 705 | return ret; |
| 706 | } |
| 707 | |
| 708 | void cnss_debugfs_destroy(struct cnss_plat_data *plat_priv) |
| 709 | { |
| 710 | debugfs_remove_recursive(plat_priv->root_dentry); |
| 711 | } |
| 712 | |
| 713 | int cnss_debug_init(void) |
| 714 | { |
| 715 | cnss_ipc_log_context = ipc_log_context_create(CNSS_IPC_LOG_PAGES, |
| 716 | "cnss", 0); |
| 717 | if (!cnss_ipc_log_context) { |
| 718 | cnss_pr_err("Unable to create IPC log context!\n"); |
| 719 | return -EINVAL; |
| 720 | } |
| 721 | |
| 722 | return 0; |
| 723 | } |
| 724 | |
| 725 | void cnss_debug_deinit(void) |
| 726 | { |
| 727 | if (cnss_ipc_log_context) { |
| 728 | ipc_log_context_destroy(cnss_ipc_log_context); |
| 729 | cnss_ipc_log_context = NULL; |
| 730 | } |
| 731 | } |