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" |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 8 | #include "bus.h" |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 9 | #include "debug.h" |
| 10 | #include "pci.h" |
| 11 | |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 12 | #define MMIO_REG_ACCESS_MEM_TYPE 0xFF |
| 13 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 14 | void *cnss_ipc_log_context; |
Yue Ma | fc1ff6f | 2019-07-10 18:09:13 -0700 | [diff] [blame] | 15 | void *cnss_ipc_log_long_context; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 16 | |
| 17 | static int cnss_pin_connect_show(struct seq_file *s, void *data) |
| 18 | { |
| 19 | struct cnss_plat_data *cnss_priv = s->private; |
| 20 | |
| 21 | seq_puts(s, "Pin connect results\n"); |
| 22 | seq_printf(s, "FW power pin result: %04x\n", |
| 23 | cnss_priv->pin_result.fw_pwr_pin_result); |
| 24 | seq_printf(s, "FW PHY IO pin result: %04x\n", |
| 25 | cnss_priv->pin_result.fw_phy_io_pin_result); |
| 26 | seq_printf(s, "FW RF pin result: %04x\n", |
| 27 | cnss_priv->pin_result.fw_rf_pin_result); |
| 28 | seq_printf(s, "Host pin result: %04x\n", |
| 29 | cnss_priv->pin_result.host_pin_result); |
| 30 | seq_puts(s, "\n"); |
| 31 | |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | static int cnss_pin_connect_open(struct inode *inode, struct file *file) |
| 36 | { |
| 37 | return single_open(file, cnss_pin_connect_show, inode->i_private); |
| 38 | } |
| 39 | |
| 40 | static const struct file_operations cnss_pin_connect_fops = { |
| 41 | .read = seq_read, |
| 42 | .release = single_release, |
| 43 | .open = cnss_pin_connect_open, |
| 44 | .owner = THIS_MODULE, |
| 45 | .llseek = seq_lseek, |
| 46 | }; |
| 47 | |
| 48 | static int cnss_stats_show_state(struct seq_file *s, |
| 49 | struct cnss_plat_data *plat_priv) |
| 50 | { |
| 51 | enum cnss_driver_state i; |
| 52 | int skip = 0; |
| 53 | unsigned long state; |
| 54 | |
| 55 | seq_printf(s, "\nState: 0x%lx(", plat_priv->driver_state); |
| 56 | for (i = 0, state = plat_priv->driver_state; state != 0; |
| 57 | state >>= 1, i++) { |
| 58 | if (!(state & 0x1)) |
| 59 | continue; |
| 60 | |
| 61 | if (skip++) |
| 62 | seq_puts(s, " | "); |
| 63 | |
| 64 | switch (i) { |
| 65 | case CNSS_QMI_WLFW_CONNECTED: |
| 66 | seq_puts(s, "QMI_WLFW_CONNECTED"); |
| 67 | continue; |
| 68 | case CNSS_FW_MEM_READY: |
| 69 | seq_puts(s, "FW_MEM_READY"); |
| 70 | continue; |
| 71 | case CNSS_FW_READY: |
| 72 | seq_puts(s, "FW_READY"); |
| 73 | continue; |
| 74 | case CNSS_COLD_BOOT_CAL: |
| 75 | seq_puts(s, "COLD_BOOT_CAL"); |
| 76 | continue; |
| 77 | case CNSS_DRIVER_LOADING: |
| 78 | seq_puts(s, "DRIVER_LOADING"); |
| 79 | continue; |
| 80 | case CNSS_DRIVER_UNLOADING: |
| 81 | seq_puts(s, "DRIVER_UNLOADING"); |
| 82 | continue; |
Yue Ma | 2b45e36 | 2019-05-02 15:59:06 -0700 | [diff] [blame] | 83 | case CNSS_DRIVER_IDLE_RESTART: |
| 84 | seq_puts(s, "IDLE_RESTART"); |
| 85 | continue; |
| 86 | case CNSS_DRIVER_IDLE_SHUTDOWN: |
| 87 | seq_puts(s, "IDLE_SHUTDOWN"); |
| 88 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 89 | case CNSS_DRIVER_PROBED: |
| 90 | seq_puts(s, "DRIVER_PROBED"); |
| 91 | continue; |
| 92 | case CNSS_DRIVER_RECOVERY: |
| 93 | seq_puts(s, "DRIVER_RECOVERY"); |
| 94 | continue; |
| 95 | case CNSS_FW_BOOT_RECOVERY: |
| 96 | seq_puts(s, "FW_BOOT_RECOVERY"); |
| 97 | continue; |
| 98 | case CNSS_DEV_ERR_NOTIFY: |
| 99 | seq_puts(s, "DEV_ERR"); |
| 100 | continue; |
| 101 | case CNSS_DRIVER_DEBUG: |
| 102 | seq_puts(s, "DRIVER_DEBUG"); |
| 103 | continue; |
Yuanyuan Liu | 659d5f3 | 2019-01-25 14:29:22 -0800 | [diff] [blame] | 104 | case CNSS_COEX_CONNECTED: |
| 105 | seq_puts(s, "COEX_CONNECTED"); |
| 106 | continue; |
Yuanyuan Liu | cdb0407 | 2019-06-06 11:18:49 -0700 | [diff] [blame] | 107 | case CNSS_IMS_CONNECTED: |
| 108 | seq_puts(s, "IMS_CONNECTED"); |
| 109 | continue; |
Yue Ma | a1c9322 | 2019-07-25 16:59:57 -0700 | [diff] [blame] | 110 | case CNSS_IN_SUSPEND_RESUME: |
| 111 | seq_puts(s, "IN_SUSPEND_RESUME"); |
| 112 | continue; |
Yue Ma | 89c36cf | 2019-09-24 18:11:24 -0700 | [diff] [blame] | 113 | case CNSS_IN_REBOOT: |
| 114 | seq_puts(s, "IN_REBOOT"); |
| 115 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | seq_printf(s, "UNKNOWN-%d", i); |
| 119 | } |
| 120 | seq_puts(s, ")\n"); |
| 121 | |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static int cnss_stats_show(struct seq_file *s, void *data) |
| 126 | { |
| 127 | struct cnss_plat_data *plat_priv = s->private; |
| 128 | |
| 129 | cnss_stats_show_state(s, plat_priv); |
| 130 | |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | static int cnss_stats_open(struct inode *inode, struct file *file) |
| 135 | { |
| 136 | return single_open(file, cnss_stats_show, inode->i_private); |
| 137 | } |
| 138 | |
| 139 | static const struct file_operations cnss_stats_fops = { |
| 140 | .read = seq_read, |
| 141 | .release = single_release, |
| 142 | .open = cnss_stats_open, |
| 143 | .owner = THIS_MODULE, |
| 144 | .llseek = seq_lseek, |
| 145 | }; |
| 146 | |
| 147 | static ssize_t cnss_dev_boot_debug_write(struct file *fp, |
| 148 | const char __user *user_buf, |
| 149 | size_t count, loff_t *off) |
| 150 | { |
| 151 | struct cnss_plat_data *plat_priv = |
| 152 | ((struct seq_file *)fp->private_data)->private; |
| 153 | struct cnss_pci_data *pci_priv; |
| 154 | char buf[64]; |
| 155 | char *cmd; |
| 156 | unsigned int len = 0; |
| 157 | int ret = 0; |
| 158 | |
| 159 | if (!plat_priv) |
| 160 | return -ENODEV; |
| 161 | |
| 162 | pci_priv = plat_priv->bus_priv; |
| 163 | if (!pci_priv) |
| 164 | return -ENODEV; |
| 165 | |
| 166 | len = min(count, sizeof(buf) - 1); |
| 167 | if (copy_from_user(buf, user_buf, len)) |
| 168 | return -EFAULT; |
| 169 | |
| 170 | buf[len] = '\0'; |
| 171 | cmd = buf; |
| 172 | |
| 173 | if (sysfs_streq(cmd, "on")) { |
| 174 | ret = cnss_power_on_device(plat_priv); |
| 175 | } else if (sysfs_streq(cmd, "off")) { |
| 176 | cnss_power_off_device(plat_priv); |
| 177 | } else if (sysfs_streq(cmd, "enumerate")) { |
| 178 | ret = cnss_pci_init(plat_priv); |
| 179 | } else if (sysfs_streq(cmd, "download")) { |
| 180 | set_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 181 | ret = cnss_pci_start_mhi(pci_priv); |
| 182 | } else if (sysfs_streq(cmd, "linkup")) { |
| 183 | ret = cnss_resume_pci_link(pci_priv); |
| 184 | } else if (sysfs_streq(cmd, "linkdown")) { |
| 185 | ret = cnss_suspend_pci_link(pci_priv); |
| 186 | } else if (sysfs_streq(cmd, "powerup")) { |
| 187 | set_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 188 | ret = cnss_driver_event_post(plat_priv, |
| 189 | CNSS_DRIVER_EVENT_POWER_UP, |
| 190 | CNSS_EVENT_SYNC, NULL); |
| 191 | } else if (sysfs_streq(cmd, "shutdown")) { |
| 192 | ret = cnss_driver_event_post(plat_priv, |
| 193 | CNSS_DRIVER_EVENT_POWER_DOWN, |
| 194 | 0, NULL); |
| 195 | clear_bit(CNSS_DRIVER_DEBUG, &plat_priv->driver_state); |
| 196 | } else if (sysfs_streq(cmd, "assert")) { |
| 197 | ret = cnss_force_fw_assert(&pci_priv->pci_dev->dev); |
| 198 | } else { |
| 199 | cnss_pr_err("Device boot debugfs command is invalid\n"); |
| 200 | ret = -EINVAL; |
| 201 | } |
| 202 | |
Yue Ma | c2e5e5e | 2019-07-29 12:02:36 -0700 | [diff] [blame] | 203 | if (ret < 0) |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 204 | return ret; |
| 205 | |
| 206 | return count; |
| 207 | } |
| 208 | |
| 209 | static int cnss_dev_boot_debug_show(struct seq_file *s, void *data) |
| 210 | { |
| 211 | seq_puts(s, "\nUsage: echo <action> > <debugfs_path>/cnss/dev_boot\n"); |
| 212 | seq_puts(s, "<action> can be one of below:\n"); |
| 213 | seq_puts(s, "on: turn on device power, assert WLAN_EN\n"); |
| 214 | seq_puts(s, "off: de-assert WLAN_EN, turn off device power\n"); |
| 215 | seq_puts(s, "enumerate: de-assert PERST, enumerate PCIe\n"); |
| 216 | seq_puts(s, "download: download FW and do QMI handshake with FW\n"); |
| 217 | seq_puts(s, "linkup: bring up PCIe link\n"); |
| 218 | seq_puts(s, "linkdown: bring down PCIe link\n"); |
| 219 | seq_puts(s, "powerup: full power on sequence to boot device, download FW and do QMI handshake with FW\n"); |
| 220 | seq_puts(s, "shutdown: full power off sequence to shutdown device\n"); |
| 221 | seq_puts(s, "assert: trigger firmware assert\n"); |
| 222 | |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | static int cnss_dev_boot_debug_open(struct inode *inode, struct file *file) |
| 227 | { |
| 228 | return single_open(file, cnss_dev_boot_debug_show, inode->i_private); |
| 229 | } |
| 230 | |
| 231 | static const struct file_operations cnss_dev_boot_debug_fops = { |
| 232 | .read = seq_read, |
| 233 | .write = cnss_dev_boot_debug_write, |
| 234 | .release = single_release, |
| 235 | .open = cnss_dev_boot_debug_open, |
| 236 | .owner = THIS_MODULE, |
| 237 | .llseek = seq_lseek, |
| 238 | }; |
| 239 | |
| 240 | static int cnss_reg_read_debug_show(struct seq_file *s, void *data) |
| 241 | { |
| 242 | struct cnss_plat_data *plat_priv = s->private; |
| 243 | |
| 244 | mutex_lock(&plat_priv->dev_lock); |
| 245 | if (!plat_priv->diag_reg_read_buf) { |
| 246 | seq_puts(s, "\nUsage: echo <mem_type> <offset> <data_len> > <debugfs_path>/cnss/reg_read\n"); |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 247 | seq_puts(s, "Use mem_type = 0xff for register read by IO access, data_len will be ignored\n"); |
| 248 | seq_puts(s, "Use other mem_type for register read by QMI\n"); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 249 | mutex_unlock(&plat_priv->dev_lock); |
| 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | seq_printf(s, "\nRegister read, address: 0x%x memory type: 0x%x length: 0x%x\n\n", |
| 254 | plat_priv->diag_reg_read_addr, |
| 255 | plat_priv->diag_reg_read_mem_type, |
| 256 | plat_priv->diag_reg_read_len); |
| 257 | |
| 258 | seq_hex_dump(s, "", DUMP_PREFIX_OFFSET, 32, 4, |
| 259 | plat_priv->diag_reg_read_buf, |
| 260 | plat_priv->diag_reg_read_len, false); |
| 261 | |
| 262 | plat_priv->diag_reg_read_len = 0; |
| 263 | kfree(plat_priv->diag_reg_read_buf); |
| 264 | plat_priv->diag_reg_read_buf = NULL; |
| 265 | mutex_unlock(&plat_priv->dev_lock); |
| 266 | |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | static ssize_t cnss_reg_read_debug_write(struct file *fp, |
| 271 | const char __user *user_buf, |
| 272 | size_t count, loff_t *off) |
| 273 | { |
| 274 | struct cnss_plat_data *plat_priv = |
| 275 | ((struct seq_file *)fp->private_data)->private; |
| 276 | char buf[64]; |
| 277 | char *sptr, *token; |
| 278 | unsigned int len = 0; |
| 279 | u32 reg_offset, mem_type; |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 280 | u32 data_len = 0, reg_val = 0; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 281 | u8 *reg_buf = NULL; |
| 282 | const char *delim = " "; |
| 283 | int ret = 0; |
| 284 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 285 | len = min(count, sizeof(buf) - 1); |
| 286 | if (copy_from_user(buf, user_buf, len)) |
| 287 | return -EFAULT; |
| 288 | |
| 289 | buf[len] = '\0'; |
| 290 | sptr = buf; |
| 291 | |
| 292 | token = strsep(&sptr, delim); |
| 293 | if (!token) |
| 294 | return -EINVAL; |
| 295 | |
| 296 | if (!sptr) |
| 297 | return -EINVAL; |
| 298 | |
| 299 | if (kstrtou32(token, 0, &mem_type)) |
| 300 | return -EINVAL; |
| 301 | |
| 302 | token = strsep(&sptr, delim); |
| 303 | if (!token) |
| 304 | return -EINVAL; |
| 305 | |
| 306 | if (!sptr) |
| 307 | return -EINVAL; |
| 308 | |
| 309 | if (kstrtou32(token, 0, ®_offset)) |
| 310 | return -EINVAL; |
| 311 | |
| 312 | token = strsep(&sptr, delim); |
| 313 | if (!token) |
| 314 | return -EINVAL; |
| 315 | |
| 316 | if (kstrtou32(token, 0, &data_len)) |
| 317 | return -EINVAL; |
| 318 | |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 319 | if (mem_type == MMIO_REG_ACCESS_MEM_TYPE) { |
| 320 | ret = cnss_bus_debug_reg_read(plat_priv, reg_offset, ®_val); |
| 321 | if (ret) |
| 322 | return ret; |
| 323 | cnss_pr_dbg("Read 0x%x from register offset 0x%x\n", reg_val, |
| 324 | reg_offset); |
| 325 | return count; |
| 326 | } |
| 327 | |
| 328 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 329 | cnss_pr_err("Firmware is not ready yet\n"); |
| 330 | return -EINVAL; |
| 331 | } |
| 332 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 333 | mutex_lock(&plat_priv->dev_lock); |
| 334 | kfree(plat_priv->diag_reg_read_buf); |
| 335 | plat_priv->diag_reg_read_buf = NULL; |
| 336 | |
| 337 | reg_buf = kzalloc(data_len, GFP_KERNEL); |
| 338 | if (!reg_buf) { |
| 339 | mutex_unlock(&plat_priv->dev_lock); |
| 340 | return -ENOMEM; |
| 341 | } |
| 342 | |
| 343 | ret = cnss_wlfw_athdiag_read_send_sync(plat_priv, reg_offset, |
| 344 | mem_type, data_len, |
| 345 | reg_buf); |
| 346 | if (ret) { |
| 347 | kfree(reg_buf); |
| 348 | mutex_unlock(&plat_priv->dev_lock); |
| 349 | return ret; |
| 350 | } |
| 351 | |
| 352 | plat_priv->diag_reg_read_addr = reg_offset; |
| 353 | plat_priv->diag_reg_read_mem_type = mem_type; |
| 354 | plat_priv->diag_reg_read_len = data_len; |
| 355 | plat_priv->diag_reg_read_buf = reg_buf; |
| 356 | mutex_unlock(&plat_priv->dev_lock); |
| 357 | |
| 358 | return count; |
| 359 | } |
| 360 | |
| 361 | static int cnss_reg_read_debug_open(struct inode *inode, struct file *file) |
| 362 | { |
| 363 | return single_open(file, cnss_reg_read_debug_show, inode->i_private); |
| 364 | } |
| 365 | |
| 366 | static const struct file_operations cnss_reg_read_debug_fops = { |
| 367 | .read = seq_read, |
| 368 | .write = cnss_reg_read_debug_write, |
| 369 | .open = cnss_reg_read_debug_open, |
| 370 | .owner = THIS_MODULE, |
| 371 | .llseek = seq_lseek, |
| 372 | }; |
| 373 | |
| 374 | static int cnss_reg_write_debug_show(struct seq_file *s, void *data) |
| 375 | { |
| 376 | seq_puts(s, "\nUsage: echo <mem_type> <offset> <reg_val> > <debugfs_path>/cnss/reg_write\n"); |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 377 | seq_puts(s, "Use mem_type = 0xff for register write by IO access\n"); |
| 378 | seq_puts(s, "Use other mem_type for register write by QMI\n"); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | static ssize_t cnss_reg_write_debug_write(struct file *fp, |
| 384 | const char __user *user_buf, |
| 385 | size_t count, loff_t *off) |
| 386 | { |
| 387 | struct cnss_plat_data *plat_priv = |
| 388 | ((struct seq_file *)fp->private_data)->private; |
| 389 | char buf[64]; |
| 390 | char *sptr, *token; |
| 391 | unsigned int len = 0; |
| 392 | u32 reg_offset, mem_type, reg_val; |
| 393 | const char *delim = " "; |
| 394 | int ret = 0; |
| 395 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 396 | len = min(count, sizeof(buf) - 1); |
| 397 | if (copy_from_user(buf, user_buf, len)) |
| 398 | return -EFAULT; |
| 399 | |
| 400 | buf[len] = '\0'; |
| 401 | sptr = buf; |
| 402 | |
| 403 | token = strsep(&sptr, delim); |
| 404 | if (!token) |
| 405 | return -EINVAL; |
| 406 | |
| 407 | if (!sptr) |
| 408 | return -EINVAL; |
| 409 | |
| 410 | if (kstrtou32(token, 0, &mem_type)) |
| 411 | return -EINVAL; |
| 412 | |
| 413 | token = strsep(&sptr, delim); |
| 414 | if (!token) |
| 415 | return -EINVAL; |
| 416 | |
| 417 | if (!sptr) |
| 418 | return -EINVAL; |
| 419 | |
| 420 | if (kstrtou32(token, 0, ®_offset)) |
| 421 | return -EINVAL; |
| 422 | |
| 423 | token = strsep(&sptr, delim); |
| 424 | if (!token) |
| 425 | return -EINVAL; |
| 426 | |
| 427 | if (kstrtou32(token, 0, ®_val)) |
| 428 | return -EINVAL; |
| 429 | |
Yue Ma | 710d522 | 2019-09-20 16:35:10 -0700 | [diff] [blame] | 430 | if (mem_type == MMIO_REG_ACCESS_MEM_TYPE) { |
| 431 | ret = cnss_bus_debug_reg_write(plat_priv, reg_offset, reg_val); |
| 432 | if (ret) |
| 433 | return ret; |
| 434 | cnss_pr_dbg("Wrote 0x%x to register offset 0x%x\n", reg_val, |
| 435 | reg_offset); |
| 436 | return count; |
| 437 | } |
| 438 | |
| 439 | if (!test_bit(CNSS_FW_READY, &plat_priv->driver_state)) { |
| 440 | cnss_pr_err("Firmware is not ready yet\n"); |
| 441 | return -EINVAL; |
| 442 | } |
| 443 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 444 | ret = cnss_wlfw_athdiag_write_send_sync(plat_priv, reg_offset, mem_type, |
| 445 | sizeof(u32), |
| 446 | (u8 *)®_val); |
| 447 | if (ret) |
| 448 | return ret; |
| 449 | |
| 450 | return count; |
| 451 | } |
| 452 | |
| 453 | static int cnss_reg_write_debug_open(struct inode *inode, struct file *file) |
| 454 | { |
| 455 | return single_open(file, cnss_reg_write_debug_show, inode->i_private); |
| 456 | } |
| 457 | |
| 458 | static const struct file_operations cnss_reg_write_debug_fops = { |
| 459 | .read = seq_read, |
| 460 | .write = cnss_reg_write_debug_write, |
| 461 | .open = cnss_reg_write_debug_open, |
| 462 | .owner = THIS_MODULE, |
| 463 | .llseek = seq_lseek, |
| 464 | }; |
| 465 | |
| 466 | static ssize_t cnss_runtime_pm_debug_write(struct file *fp, |
| 467 | const char __user *user_buf, |
| 468 | size_t count, loff_t *off) |
| 469 | { |
| 470 | struct cnss_plat_data *plat_priv = |
| 471 | ((struct seq_file *)fp->private_data)->private; |
| 472 | struct cnss_pci_data *pci_priv; |
| 473 | char buf[64]; |
| 474 | char *cmd; |
| 475 | unsigned int len = 0; |
| 476 | int ret = 0; |
| 477 | |
| 478 | if (!plat_priv) |
| 479 | return -ENODEV; |
| 480 | |
| 481 | pci_priv = plat_priv->bus_priv; |
| 482 | if (!pci_priv) |
| 483 | return -ENODEV; |
| 484 | |
| 485 | len = min(count, sizeof(buf) - 1); |
| 486 | if (copy_from_user(buf, user_buf, len)) |
| 487 | return -EFAULT; |
| 488 | |
| 489 | buf[len] = '\0'; |
| 490 | cmd = buf; |
| 491 | |
| 492 | if (sysfs_streq(cmd, "usage_count")) { |
| 493 | cnss_pci_pm_runtime_show_usage_count(pci_priv); |
Yue Ma | 6476dc9 | 2019-05-03 11:21:37 -0700 | [diff] [blame] | 494 | } else if (sysfs_streq(cmd, "request_resume")) { |
| 495 | ret = cnss_pci_pm_request_resume(pci_priv); |
| 496 | } else if (sysfs_streq(cmd, "resume")) { |
| 497 | ret = cnss_pci_pm_runtime_resume(pci_priv); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 498 | } else if (sysfs_streq(cmd, "get")) { |
| 499 | ret = cnss_pci_pm_runtime_get(pci_priv); |
| 500 | } else if (sysfs_streq(cmd, "get_noresume")) { |
| 501 | cnss_pci_pm_runtime_get_noresume(pci_priv); |
| 502 | } else if (sysfs_streq(cmd, "put_autosuspend")) { |
| 503 | ret = cnss_pci_pm_runtime_put_autosuspend(pci_priv); |
| 504 | } else if (sysfs_streq(cmd, "put_noidle")) { |
| 505 | cnss_pci_pm_runtime_put_noidle(pci_priv); |
| 506 | } else if (sysfs_streq(cmd, "mark_last_busy")) { |
| 507 | cnss_pci_pm_runtime_mark_last_busy(pci_priv); |
Yue Ma | cdd6161 | 2019-08-23 11:58:31 -0700 | [diff] [blame] | 508 | } else if (sysfs_streq(cmd, "resume_bus")) { |
| 509 | cnss_pci_resume_bus(pci_priv); |
| 510 | } else if (sysfs_streq(cmd, "suspend_bus")) { |
| 511 | cnss_pci_suspend_bus(pci_priv); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 512 | } else { |
| 513 | cnss_pr_err("Runtime PM debugfs command is invalid\n"); |
| 514 | ret = -EINVAL; |
| 515 | } |
| 516 | |
Yue Ma | c2e5e5e | 2019-07-29 12:02:36 -0700 | [diff] [blame] | 517 | if (ret < 0) |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 518 | return ret; |
| 519 | |
| 520 | return count; |
| 521 | } |
| 522 | |
| 523 | static int cnss_runtime_pm_debug_show(struct seq_file *s, void *data) |
| 524 | { |
| 525 | seq_puts(s, "\nUsage: echo <action> > <debugfs_path>/cnss/runtime_pm\n"); |
| 526 | seq_puts(s, "<action> can be one of below:\n"); |
| 527 | seq_puts(s, "usage_count: get runtime PM usage count\n"); |
Yue Ma | c2e5e5e | 2019-07-29 12:02:36 -0700 | [diff] [blame] | 528 | seq_puts(s, "reques_resume: do async runtime PM resume\n"); |
| 529 | seq_puts(s, "resume: do sync runtime PM resume\n"); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 530 | seq_puts(s, "get: do runtime PM get\n"); |
| 531 | seq_puts(s, "get_noresume: do runtime PM get noresume\n"); |
| 532 | seq_puts(s, "put_noidle: do runtime PM put noidle\n"); |
| 533 | seq_puts(s, "put_autosuspend: do runtime PM put autosuspend\n"); |
| 534 | seq_puts(s, "mark_last_busy: do runtime PM mark last busy\n"); |
Yue Ma | cdd6161 | 2019-08-23 11:58:31 -0700 | [diff] [blame] | 535 | seq_puts(s, "resume_bus: do bus resume only\n"); |
| 536 | seq_puts(s, "suspend_bus: do bus suspend only\n"); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 537 | |
| 538 | return 0; |
| 539 | } |
| 540 | |
| 541 | static int cnss_runtime_pm_debug_open(struct inode *inode, struct file *file) |
| 542 | { |
| 543 | return single_open(file, cnss_runtime_pm_debug_show, inode->i_private); |
| 544 | } |
| 545 | |
| 546 | static const struct file_operations cnss_runtime_pm_debug_fops = { |
| 547 | .read = seq_read, |
| 548 | .write = cnss_runtime_pm_debug_write, |
| 549 | .open = cnss_runtime_pm_debug_open, |
| 550 | .owner = THIS_MODULE, |
| 551 | .llseek = seq_lseek, |
| 552 | }; |
| 553 | |
| 554 | static ssize_t cnss_control_params_debug_write(struct file *fp, |
| 555 | const char __user *user_buf, |
| 556 | size_t count, loff_t *off) |
| 557 | { |
| 558 | struct cnss_plat_data *plat_priv = |
| 559 | ((struct seq_file *)fp->private_data)->private; |
| 560 | char buf[64]; |
| 561 | char *sptr, *token; |
| 562 | char *cmd; |
| 563 | u32 val; |
| 564 | unsigned int len = 0; |
| 565 | const char *delim = " "; |
| 566 | |
| 567 | if (!plat_priv) |
| 568 | return -ENODEV; |
| 569 | |
| 570 | len = min(count, sizeof(buf) - 1); |
| 571 | if (copy_from_user(buf, user_buf, len)) |
| 572 | return -EFAULT; |
| 573 | |
| 574 | buf[len] = '\0'; |
| 575 | sptr = buf; |
| 576 | |
| 577 | token = strsep(&sptr, delim); |
| 578 | if (!token) |
| 579 | return -EINVAL; |
| 580 | if (!sptr) |
| 581 | return -EINVAL; |
| 582 | cmd = token; |
| 583 | |
| 584 | token = strsep(&sptr, delim); |
| 585 | if (!token) |
| 586 | return -EINVAL; |
| 587 | if (kstrtou32(token, 0, &val)) |
| 588 | return -EINVAL; |
| 589 | |
| 590 | if (strcmp(cmd, "quirks") == 0) |
| 591 | plat_priv->ctrl_params.quirks = val; |
| 592 | else if (strcmp(cmd, "mhi_timeout") == 0) |
| 593 | plat_priv->ctrl_params.mhi_timeout = val; |
Yue Ma | b246f1e | 2019-09-10 14:49:25 -0700 | [diff] [blame] | 594 | else if (strcmp(cmd, "mhi_m2_timeout") == 0) |
| 595 | plat_priv->ctrl_params.mhi_m2_timeout = val; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 596 | else if (strcmp(cmd, "qmi_timeout") == 0) |
| 597 | plat_priv->ctrl_params.qmi_timeout = val; |
| 598 | else if (strcmp(cmd, "bdf_type") == 0) |
| 599 | plat_priv->ctrl_params.bdf_type = val; |
Yue Ma | 8ee8175 | 2019-07-10 11:56:51 -0700 | [diff] [blame] | 600 | else if (strcmp(cmd, "time_sync_period") == 0) |
| 601 | plat_priv->ctrl_params.time_sync_period = val; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 602 | else |
| 603 | return -EINVAL; |
| 604 | |
| 605 | return count; |
| 606 | } |
| 607 | |
| 608 | static int cnss_show_quirks_state(struct seq_file *s, |
| 609 | struct cnss_plat_data *plat_priv) |
| 610 | { |
| 611 | enum cnss_debug_quirks i; |
| 612 | int skip = 0; |
| 613 | unsigned long state; |
| 614 | |
| 615 | seq_printf(s, "quirks: 0x%lx (", plat_priv->ctrl_params.quirks); |
| 616 | for (i = 0, state = plat_priv->ctrl_params.quirks; |
| 617 | state != 0; state >>= 1, i++) { |
| 618 | if (!(state & 0x1)) |
| 619 | continue; |
| 620 | if (skip++) |
| 621 | seq_puts(s, " | "); |
| 622 | |
| 623 | switch (i) { |
| 624 | case LINK_DOWN_SELF_RECOVERY: |
| 625 | seq_puts(s, "LINK_DOWN_SELF_RECOVERY"); |
| 626 | continue; |
| 627 | case SKIP_DEVICE_BOOT: |
| 628 | seq_puts(s, "SKIP_DEVICE_BOOT"); |
| 629 | continue; |
| 630 | case USE_CORE_ONLY_FW: |
| 631 | seq_puts(s, "USE_CORE_ONLY_FW"); |
| 632 | continue; |
| 633 | case SKIP_RECOVERY: |
| 634 | seq_puts(s, "SKIP_RECOVERY"); |
| 635 | continue; |
| 636 | case QMI_BYPASS: |
| 637 | seq_puts(s, "QMI_BYPASS"); |
| 638 | continue; |
| 639 | case ENABLE_WALTEST: |
| 640 | seq_puts(s, "WALTEST"); |
| 641 | continue; |
| 642 | case ENABLE_PCI_LINK_DOWN_PANIC: |
| 643 | seq_puts(s, "PCI_LINK_DOWN_PANIC"); |
| 644 | continue; |
| 645 | case FBC_BYPASS: |
| 646 | seq_puts(s, "FBC_BYPASS"); |
| 647 | continue; |
| 648 | case ENABLE_DAEMON_SUPPORT: |
| 649 | seq_puts(s, "DAEMON_SUPPORT"); |
| 650 | continue; |
Yue Ma | f28455c | 2019-04-09 18:17:03 -0700 | [diff] [blame] | 651 | case DISABLE_DRV: |
| 652 | seq_puts(s, "DISABLE_DRV"); |
| 653 | continue; |
Yuanyuan Liu | 9830ab7 | 2019-09-09 10:53:23 -0700 | [diff] [blame] | 654 | case DISABLE_IO_COHERENCY: |
| 655 | seq_puts(s, "DISABLE_IO_COHERENCY"); |
| 656 | continue; |
Yue Ma | 46b142a | 2019-10-11 14:00:45 -0700 | [diff] [blame] | 657 | case IGNORE_PCI_LINK_FAILURE: |
| 658 | seq_puts(s, "IGNORE_PCI_LINK_FAILURE"); |
| 659 | continue; |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 660 | } |
| 661 | |
| 662 | seq_printf(s, "UNKNOWN-%d", i); |
| 663 | } |
| 664 | seq_puts(s, ")\n"); |
| 665 | return 0; |
| 666 | } |
| 667 | |
| 668 | static int cnss_control_params_debug_show(struct seq_file *s, void *data) |
| 669 | { |
| 670 | struct cnss_plat_data *cnss_priv = s->private; |
| 671 | |
| 672 | seq_puts(s, "\nUsage: echo <params_name> <value> > <debugfs_path>/cnss/control_params\n"); |
| 673 | seq_puts(s, "<params_name> can be one of below:\n"); |
| 674 | seq_puts(s, "quirks: Debug quirks for driver\n"); |
| 675 | seq_puts(s, "mhi_timeout: Timeout for MHI operation in milliseconds\n"); |
| 676 | seq_puts(s, "qmi_timeout: Timeout for QMI message in milliseconds\n"); |
| 677 | 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] | 678 | 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] | 679 | |
| 680 | seq_puts(s, "\nCurrent value:\n"); |
| 681 | cnss_show_quirks_state(s, cnss_priv); |
| 682 | seq_printf(s, "mhi_timeout: %u\n", cnss_priv->ctrl_params.mhi_timeout); |
Yue Ma | b246f1e | 2019-09-10 14:49:25 -0700 | [diff] [blame] | 683 | seq_printf(s, "mhi_m2_timeout: %u\n", |
| 684 | cnss_priv->ctrl_params.mhi_m2_timeout); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 685 | seq_printf(s, "qmi_timeout: %u\n", cnss_priv->ctrl_params.qmi_timeout); |
| 686 | 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] | 687 | seq_printf(s, "time_sync_period: %u\n", |
| 688 | cnss_priv->ctrl_params.time_sync_period); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 689 | |
| 690 | return 0; |
| 691 | } |
| 692 | |
| 693 | static int cnss_control_params_debug_open(struct inode *inode, |
| 694 | struct file *file) |
| 695 | { |
| 696 | return single_open(file, cnss_control_params_debug_show, |
| 697 | inode->i_private); |
| 698 | } |
| 699 | |
| 700 | static const struct file_operations cnss_control_params_debug_fops = { |
| 701 | .read = seq_read, |
| 702 | .write = cnss_control_params_debug_write, |
| 703 | .open = cnss_control_params_debug_open, |
| 704 | .owner = THIS_MODULE, |
| 705 | .llseek = seq_lseek, |
| 706 | }; |
| 707 | |
Yuanyuan Liu | 420c76b | 2019-06-10 16:11:18 -0700 | [diff] [blame] | 708 | static ssize_t cnss_dynamic_feature_write(struct file *fp, |
| 709 | const char __user *user_buf, |
| 710 | size_t count, loff_t *off) |
| 711 | { |
| 712 | struct cnss_plat_data *plat_priv = |
| 713 | ((struct seq_file *)fp->private_data)->private; |
| 714 | int ret = 0; |
| 715 | u64 val; |
| 716 | |
| 717 | ret = kstrtou64_from_user(user_buf, count, 0, &val); |
| 718 | if (ret) |
| 719 | return ret; |
| 720 | |
| 721 | plat_priv->dynamic_feature = val; |
| 722 | ret = cnss_wlfw_dynamic_feature_mask_send_sync(plat_priv); |
| 723 | if (ret < 0) |
| 724 | return ret; |
| 725 | |
| 726 | return count; |
| 727 | } |
| 728 | |
| 729 | static int cnss_dynamic_feature_show(struct seq_file *s, void *data) |
| 730 | { |
| 731 | struct cnss_plat_data *cnss_priv = s->private; |
| 732 | |
| 733 | seq_printf(s, "dynamic_feature: 0x%llx\n", cnss_priv->dynamic_feature); |
| 734 | |
| 735 | return 0; |
| 736 | } |
| 737 | |
| 738 | static int cnss_dynamic_feature_open(struct inode *inode, |
| 739 | struct file *file) |
| 740 | { |
| 741 | return single_open(file, cnss_dynamic_feature_show, |
| 742 | inode->i_private); |
| 743 | } |
| 744 | |
| 745 | static const struct file_operations cnss_dynamic_feature_fops = { |
| 746 | .read = seq_read, |
| 747 | .write = cnss_dynamic_feature_write, |
| 748 | .open = cnss_dynamic_feature_open, |
| 749 | .owner = THIS_MODULE, |
| 750 | .llseek = seq_lseek, |
| 751 | }; |
| 752 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 753 | #ifdef CONFIG_CNSS2_DEBUG |
| 754 | static int cnss_create_debug_only_node(struct cnss_plat_data *plat_priv) |
| 755 | { |
| 756 | struct dentry *root_dentry = plat_priv->root_dentry; |
| 757 | |
| 758 | debugfs_create_file("dev_boot", 0600, root_dentry, plat_priv, |
| 759 | &cnss_dev_boot_debug_fops); |
| 760 | debugfs_create_file("reg_read", 0600, root_dentry, plat_priv, |
| 761 | &cnss_reg_read_debug_fops); |
| 762 | debugfs_create_file("reg_write", 0600, root_dentry, plat_priv, |
| 763 | &cnss_reg_write_debug_fops); |
| 764 | debugfs_create_file("runtime_pm", 0600, root_dentry, plat_priv, |
| 765 | &cnss_runtime_pm_debug_fops); |
| 766 | debugfs_create_file("control_params", 0600, root_dentry, plat_priv, |
| 767 | &cnss_control_params_debug_fops); |
Yuanyuan Liu | 420c76b | 2019-06-10 16:11:18 -0700 | [diff] [blame] | 768 | debugfs_create_file("dynamic_feature", 0600, root_dentry, plat_priv, |
| 769 | &cnss_dynamic_feature_fops); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 770 | |
| 771 | return 0; |
| 772 | } |
| 773 | #else |
| 774 | static int cnss_create_debug_only_node(struct cnss_plat_data *plat_priv) |
| 775 | { |
| 776 | return 0; |
| 777 | } |
| 778 | #endif |
| 779 | |
| 780 | int cnss_debugfs_create(struct cnss_plat_data *plat_priv) |
| 781 | { |
| 782 | int ret = 0; |
| 783 | struct dentry *root_dentry; |
| 784 | |
| 785 | root_dentry = debugfs_create_dir("cnss", 0); |
| 786 | if (IS_ERR(root_dentry)) { |
| 787 | ret = PTR_ERR(root_dentry); |
| 788 | cnss_pr_err("Unable to create debugfs %d\n", ret); |
| 789 | goto out; |
| 790 | } |
| 791 | |
| 792 | plat_priv->root_dentry = root_dentry; |
| 793 | |
| 794 | debugfs_create_file("pin_connect_result", 0644, root_dentry, plat_priv, |
| 795 | &cnss_pin_connect_fops); |
| 796 | debugfs_create_file("stats", 0644, root_dentry, plat_priv, |
| 797 | &cnss_stats_fops); |
| 798 | |
| 799 | cnss_create_debug_only_node(plat_priv); |
| 800 | |
| 801 | out: |
| 802 | return ret; |
| 803 | } |
| 804 | |
| 805 | void cnss_debugfs_destroy(struct cnss_plat_data *plat_priv) |
| 806 | { |
| 807 | debugfs_remove_recursive(plat_priv->root_dentry); |
| 808 | } |
| 809 | |
| 810 | int cnss_debug_init(void) |
| 811 | { |
| 812 | cnss_ipc_log_context = ipc_log_context_create(CNSS_IPC_LOG_PAGES, |
| 813 | "cnss", 0); |
| 814 | if (!cnss_ipc_log_context) { |
Yue Ma | fc1ff6f | 2019-07-10 18:09:13 -0700 | [diff] [blame] | 815 | cnss_pr_err("Unable to create IPC log context\n"); |
| 816 | return -EINVAL; |
| 817 | } |
| 818 | |
| 819 | cnss_ipc_log_long_context = ipc_log_context_create(CNSS_IPC_LOG_PAGES, |
| 820 | "cnss-long", 0); |
| 821 | if (!cnss_ipc_log_long_context) { |
| 822 | cnss_pr_err("Unable to create IPC long log context\n"); |
| 823 | ipc_log_context_destroy(cnss_ipc_log_context); |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 824 | return -EINVAL; |
| 825 | } |
| 826 | |
| 827 | return 0; |
| 828 | } |
| 829 | |
| 830 | void cnss_debug_deinit(void) |
| 831 | { |
Yue Ma | fc1ff6f | 2019-07-10 18:09:13 -0700 | [diff] [blame] | 832 | if (cnss_ipc_log_long_context) { |
| 833 | ipc_log_context_destroy(cnss_ipc_log_long_context); |
| 834 | cnss_ipc_log_long_context = NULL; |
| 835 | } |
| 836 | |
Yuanyuan Liu | d5ec14c | 2019-01-03 11:25:40 -0800 | [diff] [blame] | 837 | if (cnss_ipc_log_context) { |
| 838 | ipc_log_context_destroy(cnss_ipc_log_context); |
| 839 | cnss_ipc_log_context = NULL; |
| 840 | } |
| 841 | } |