Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1 | /* |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 2 | * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__ |
| 16 | |
| 17 | #include <linux/debugfs.h> |
| 18 | |
| 19 | #include "dp_parser.h" |
| 20 | #include "dp_power.h" |
| 21 | #include "dp_catalog.h" |
| 22 | #include "dp_aux.h" |
| 23 | #include "dp_ctrl.h" |
| 24 | #include "dp_debug.h" |
| 25 | #include "drm_connector.h" |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 26 | #include "sde_connector.h" |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 27 | #include "dp_display.h" |
| 28 | |
| 29 | #define DEBUG_NAME "drm_dp" |
| 30 | |
| 31 | struct dp_debug_private { |
| 32 | struct dentry *root; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 33 | u8 *edid; |
| 34 | u32 edid_size; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 35 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 36 | u8 *dpcd; |
| 37 | u32 dpcd_size; |
| 38 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 39 | int vdo; |
| 40 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 41 | struct dp_usbpd *usbpd; |
| 42 | struct dp_link *link; |
| 43 | struct dp_panel *panel; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 44 | struct dp_aux *aux; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 45 | struct drm_connector **connector; |
| 46 | struct device *dev; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 47 | struct work_struct sim_work; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 48 | struct dp_debug dp_debug; |
| 49 | }; |
| 50 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 51 | static int dp_debug_get_edid_buf(struct dp_debug_private *debug) |
| 52 | { |
| 53 | int rc = 0; |
| 54 | |
| 55 | if (!debug->edid) { |
| 56 | debug->edid = devm_kzalloc(debug->dev, SZ_256, GFP_KERNEL); |
| 57 | if (!debug->edid) { |
| 58 | rc = -ENOMEM; |
| 59 | goto end; |
| 60 | } |
| 61 | |
| 62 | debug->edid_size = SZ_256; |
| 63 | } |
| 64 | end: |
| 65 | return rc; |
| 66 | } |
| 67 | |
| 68 | static int dp_debug_get_dpcd_buf(struct dp_debug_private *debug) |
| 69 | { |
| 70 | int rc = 0; |
| 71 | |
| 72 | if (!debug->dpcd) { |
| 73 | debug->dpcd = devm_kzalloc(debug->dev, SZ_1K, GFP_KERNEL); |
| 74 | if (!debug->dpcd) { |
| 75 | rc = -ENOMEM; |
| 76 | goto end; |
| 77 | } |
| 78 | |
| 79 | debug->dpcd_size = SZ_1K; |
| 80 | } |
| 81 | end: |
| 82 | return rc; |
| 83 | } |
| 84 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 85 | static ssize_t dp_debug_write_edid(struct file *file, |
| 86 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 87 | { |
| 88 | struct dp_debug_private *debug = file->private_data; |
| 89 | u8 *buf = NULL, *buf_t = NULL, *edid = NULL; |
| 90 | const int char_to_nib = 2; |
| 91 | size_t edid_size = 0; |
| 92 | size_t size = 0, edid_buf_index = 0; |
| 93 | ssize_t rc = count; |
| 94 | |
| 95 | if (!debug) |
| 96 | return -ENODEV; |
| 97 | |
| 98 | if (*ppos) |
| 99 | goto bail; |
| 100 | |
| 101 | size = min_t(size_t, count, SZ_1K); |
| 102 | |
| 103 | buf = kzalloc(size, GFP_KERNEL); |
| 104 | if (!buf) { |
| 105 | rc = -ENOMEM; |
| 106 | goto bail; |
| 107 | } |
| 108 | |
| 109 | if (copy_from_user(buf, user_buff, size)) |
| 110 | goto bail; |
| 111 | |
| 112 | edid_size = size / char_to_nib; |
| 113 | buf_t = buf; |
| 114 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 115 | if (dp_debug_get_edid_buf(debug)) |
| 116 | goto bail; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 117 | |
| 118 | if (edid_size != debug->edid_size) { |
| 119 | pr_debug("clearing debug edid\n"); |
| 120 | goto bail; |
| 121 | } |
| 122 | |
| 123 | while (edid_size--) { |
| 124 | char t[3]; |
| 125 | int d; |
| 126 | |
| 127 | memcpy(t, buf_t, sizeof(char) * char_to_nib); |
| 128 | t[char_to_nib] = '\0'; |
| 129 | |
| 130 | if (kstrtoint(t, 16, &d)) { |
| 131 | pr_err("kstrtoint error\n"); |
| 132 | goto bail; |
| 133 | } |
| 134 | |
| 135 | if (edid_buf_index < debug->edid_size) |
| 136 | debug->edid[edid_buf_index++] = d; |
| 137 | |
| 138 | buf_t += char_to_nib; |
| 139 | } |
| 140 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 141 | edid = debug->edid; |
| 142 | bail: |
| 143 | kfree(buf); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 144 | |
| 145 | if (!debug->dp_debug.sim_mode) |
| 146 | debug->panel->set_edid(debug->panel, edid); |
| 147 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 148 | return rc; |
| 149 | } |
| 150 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 151 | static ssize_t dp_debug_write_dpcd(struct file *file, |
| 152 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 153 | { |
| 154 | struct dp_debug_private *debug = file->private_data; |
| 155 | u8 *buf = NULL, *buf_t = NULL, *dpcd = NULL; |
| 156 | const int char_to_nib = 2; |
| 157 | size_t dpcd_size = 0; |
| 158 | size_t size = 0, dpcd_buf_index = 0; |
| 159 | ssize_t rc = count; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 160 | char offset_ch[5]; |
| 161 | u32 offset; |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 162 | |
| 163 | if (!debug) |
| 164 | return -ENODEV; |
| 165 | |
| 166 | if (*ppos) |
| 167 | goto bail; |
| 168 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 169 | size = min_t(size_t, count, SZ_2K); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 170 | |
| 171 | buf = kzalloc(size, GFP_KERNEL); |
| 172 | if (!buf) { |
| 173 | rc = -ENOMEM; |
| 174 | goto bail; |
| 175 | } |
| 176 | |
| 177 | if (copy_from_user(buf, user_buff, size)) |
| 178 | goto bail; |
| 179 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 180 | memcpy(offset_ch, buf, 4); |
| 181 | offset_ch[4] = '\0'; |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 182 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 183 | if (kstrtoint(offset_ch, 16, &offset)) { |
| 184 | pr_err("offset kstrtoint error\n"); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 185 | goto bail; |
| 186 | } |
| 187 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 188 | if (dp_debug_get_dpcd_buf(debug)) |
| 189 | goto bail; |
| 190 | |
| 191 | if (offset == 0xFFFF) { |
| 192 | pr_err("clearing dpcd\n"); |
| 193 | memset(debug->dpcd, 0, debug->dpcd_size); |
| 194 | goto bail; |
| 195 | } |
| 196 | |
| 197 | size -= 4; |
| 198 | |
| 199 | dpcd_size = size / char_to_nib; |
| 200 | buf_t = buf + 4; |
| 201 | |
| 202 | dpcd_buf_index = offset; |
| 203 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 204 | while (dpcd_size--) { |
| 205 | char t[3]; |
| 206 | int d; |
| 207 | |
| 208 | memcpy(t, buf_t, sizeof(char) * char_to_nib); |
| 209 | t[char_to_nib] = '\0'; |
| 210 | |
| 211 | if (kstrtoint(t, 16, &d)) { |
| 212 | pr_err("kstrtoint error\n"); |
| 213 | goto bail; |
| 214 | } |
| 215 | |
| 216 | if (dpcd_buf_index < debug->dpcd_size) |
| 217 | debug->dpcd[dpcd_buf_index++] = d; |
| 218 | |
| 219 | buf_t += char_to_nib; |
| 220 | } |
| 221 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 222 | dpcd = debug->dpcd; |
| 223 | bail: |
| 224 | kfree(buf); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 225 | if (debug->dp_debug.sim_mode) |
| 226 | debug->aux->dpcd_updated(debug->aux); |
| 227 | else |
| 228 | debug->panel->set_dpcd(debug->panel, dpcd); |
| 229 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 230 | return rc; |
| 231 | } |
| 232 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 233 | static ssize_t dp_debug_read_dpcd(struct file *file, |
| 234 | char __user *user_buff, size_t count, loff_t *ppos) |
| 235 | { |
| 236 | struct dp_debug_private *debug = file->private_data; |
| 237 | char buf[SZ_8]; |
| 238 | u32 len = 0; |
| 239 | |
| 240 | if (!debug) |
| 241 | return -ENODEV; |
| 242 | |
| 243 | if (*ppos) |
| 244 | return 0; |
| 245 | |
| 246 | len += snprintf(buf, SZ_8, "0x%x\n", debug->aux->reg); |
| 247 | |
| 248 | if (copy_to_user(user_buff, buf, len)) |
| 249 | return -EFAULT; |
| 250 | |
| 251 | *ppos += len; |
| 252 | return len; |
| 253 | } |
| 254 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 255 | static ssize_t dp_debug_write_hpd(struct file *file, |
| 256 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 257 | { |
| 258 | struct dp_debug_private *debug = file->private_data; |
| 259 | char buf[SZ_8]; |
| 260 | size_t len = 0; |
| 261 | int hpd; |
| 262 | |
| 263 | if (!debug) |
| 264 | return -ENODEV; |
| 265 | |
| 266 | if (*ppos) |
| 267 | return 0; |
| 268 | |
| 269 | /* Leave room for termination char */ |
| 270 | len = min_t(size_t, count, SZ_8 - 1); |
| 271 | if (copy_from_user(buf, user_buff, len)) |
| 272 | goto end; |
| 273 | |
| 274 | buf[len] = '\0'; |
| 275 | |
| 276 | if (kstrtoint(buf, 10, &hpd) != 0) |
| 277 | goto end; |
| 278 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 279 | hpd &= 0x3; |
| 280 | |
| 281 | debug->dp_debug.psm_enabled = !!(hpd & BIT(1)); |
| 282 | |
| 283 | debug->usbpd->simulate_connect(debug->usbpd, !!(hpd & BIT(0))); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 284 | end: |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 285 | return len; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | static ssize_t dp_debug_write_edid_modes(struct file *file, |
| 289 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 290 | { |
| 291 | struct dp_debug_private *debug = file->private_data; |
| 292 | char buf[SZ_32]; |
| 293 | size_t len = 0; |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 294 | int hdisplay = 0, vdisplay = 0, vrefresh = 0, aspect_ratio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 295 | |
| 296 | if (!debug) |
| 297 | return -ENODEV; |
| 298 | |
| 299 | if (*ppos) |
| 300 | goto end; |
| 301 | |
| 302 | /* Leave room for termination char */ |
| 303 | len = min_t(size_t, count, SZ_32 - 1); |
| 304 | if (copy_from_user(buf, user_buff, len)) |
| 305 | goto clear; |
| 306 | |
| 307 | buf[len] = '\0'; |
| 308 | |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 309 | if (sscanf(buf, "%d %d %d %d", &hdisplay, &vdisplay, &vrefresh, |
| 310 | &aspect_ratio) != 4) |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 311 | goto clear; |
| 312 | |
| 313 | if (!hdisplay || !vdisplay || !vrefresh) |
| 314 | goto clear; |
| 315 | |
| 316 | debug->dp_debug.debug_en = true; |
| 317 | debug->dp_debug.hdisplay = hdisplay; |
| 318 | debug->dp_debug.vdisplay = vdisplay; |
| 319 | debug->dp_debug.vrefresh = vrefresh; |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 320 | debug->dp_debug.aspect_ratio = aspect_ratio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 321 | goto end; |
| 322 | clear: |
| 323 | pr_debug("clearing debug modes\n"); |
| 324 | debug->dp_debug.debug_en = false; |
| 325 | end: |
| 326 | return len; |
| 327 | } |
| 328 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 329 | static ssize_t dp_debug_bw_code_write(struct file *file, |
| 330 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 331 | { |
| 332 | struct dp_debug_private *debug = file->private_data; |
| 333 | char buf[SZ_8]; |
| 334 | size_t len = 0; |
| 335 | u32 max_bw_code = 0; |
| 336 | |
| 337 | if (!debug) |
| 338 | return -ENODEV; |
| 339 | |
| 340 | if (*ppos) |
| 341 | return 0; |
| 342 | |
| 343 | /* Leave room for termination char */ |
| 344 | len = min_t(size_t, count, SZ_8 - 1); |
| 345 | if (copy_from_user(buf, user_buff, len)) |
| 346 | return 0; |
| 347 | |
| 348 | buf[len] = '\0'; |
| 349 | |
| 350 | if (kstrtoint(buf, 10, &max_bw_code) != 0) |
| 351 | return 0; |
| 352 | |
| 353 | if (!is_link_rate_valid(max_bw_code)) { |
| 354 | pr_err("Unsupported bw code %d\n", max_bw_code); |
| 355 | return len; |
| 356 | } |
| 357 | debug->panel->max_bw_code = max_bw_code; |
| 358 | pr_debug("max_bw_code: %d\n", max_bw_code); |
| 359 | |
| 360 | return len; |
| 361 | } |
| 362 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 363 | static ssize_t dp_debug_tpg_write(struct file *file, |
| 364 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 365 | { |
| 366 | struct dp_debug_private *debug = file->private_data; |
| 367 | char buf[SZ_8]; |
| 368 | size_t len = 0; |
| 369 | u32 tpg_state = 0; |
| 370 | |
| 371 | if (!debug) |
| 372 | return -ENODEV; |
| 373 | |
| 374 | if (*ppos) |
| 375 | return 0; |
| 376 | |
| 377 | /* Leave room for termination char */ |
| 378 | len = min_t(size_t, count, SZ_8 - 1); |
| 379 | if (copy_from_user(buf, user_buff, len)) |
| 380 | goto bail; |
| 381 | |
| 382 | buf[len] = '\0'; |
| 383 | |
| 384 | if (kstrtoint(buf, 10, &tpg_state) != 0) |
| 385 | goto bail; |
| 386 | |
| 387 | tpg_state &= 0x1; |
| 388 | pr_debug("tpg_state: %d\n", tpg_state); |
| 389 | |
| 390 | if (tpg_state == debug->dp_debug.tpg_state) |
| 391 | goto bail; |
| 392 | |
| 393 | if (debug->panel) |
| 394 | debug->panel->tpg_config(debug->panel, tpg_state); |
| 395 | |
| 396 | debug->dp_debug.tpg_state = tpg_state; |
| 397 | bail: |
| 398 | return len; |
| 399 | } |
| 400 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 401 | static ssize_t dp_debug_read_connected(struct file *file, |
| 402 | char __user *user_buff, size_t count, loff_t *ppos) |
| 403 | { |
| 404 | struct dp_debug_private *debug = file->private_data; |
| 405 | char buf[SZ_8]; |
| 406 | u32 len = 0; |
| 407 | |
| 408 | if (!debug) |
| 409 | return -ENODEV; |
| 410 | |
| 411 | if (*ppos) |
| 412 | return 0; |
| 413 | |
| 414 | len += snprintf(buf, SZ_8, "%d\n", debug->usbpd->hpd_high); |
| 415 | |
| 416 | if (copy_to_user(user_buff, buf, len)) |
| 417 | return -EFAULT; |
| 418 | |
| 419 | *ppos += len; |
| 420 | return len; |
| 421 | } |
| 422 | |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 423 | static int dp_debug_check_buffer_overflow(int rc, int *max_size, int *len) |
| 424 | { |
| 425 | if (rc >= *max_size) { |
| 426 | pr_err("buffer overflow\n"); |
| 427 | return -EINVAL; |
| 428 | } |
| 429 | *len += rc; |
| 430 | *max_size = SZ_4K - *len; |
| 431 | |
| 432 | return 0; |
| 433 | } |
| 434 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 435 | static ssize_t dp_debug_read_edid_modes(struct file *file, |
| 436 | char __user *user_buff, size_t count, loff_t *ppos) |
| 437 | { |
| 438 | struct dp_debug_private *debug = file->private_data; |
| 439 | char *buf; |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 440 | u32 len = 0, ret = 0, max_size = SZ_4K; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 441 | int rc = 0; |
| 442 | struct drm_connector *connector; |
| 443 | struct drm_display_mode *mode; |
| 444 | |
| 445 | if (!debug) { |
| 446 | pr_err("invalid data\n"); |
| 447 | rc = -ENODEV; |
| 448 | goto error; |
| 449 | } |
| 450 | |
| 451 | connector = *debug->connector; |
| 452 | |
| 453 | if (!connector) { |
| 454 | pr_err("connector is NULL\n"); |
| 455 | rc = -EINVAL; |
| 456 | goto error; |
| 457 | } |
| 458 | |
| 459 | if (*ppos) |
| 460 | goto error; |
| 461 | |
| 462 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
| 463 | if (!buf) { |
| 464 | rc = -ENOMEM; |
| 465 | goto error; |
| 466 | } |
| 467 | |
Lloyd Atkinson | c34a6ff | 2017-11-06 14:00:16 -0500 | [diff] [blame] | 468 | mutex_lock(&connector->dev->mode_config.mutex); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 469 | list_for_each_entry(mode, &connector->modes, head) { |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 470 | ret = snprintf(buf + len, max_size, |
| 471 | "%s %d %d %d %d %d 0x%x\n", |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 472 | mode->name, mode->vrefresh, mode->picture_aspect_ratio, |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 473 | mode->htotal, mode->vtotal, mode->clock, mode->flags); |
| 474 | if (dp_debug_check_buffer_overflow(ret, &max_size, &len)) |
| 475 | break; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 476 | } |
Lloyd Atkinson | c34a6ff | 2017-11-06 14:00:16 -0500 | [diff] [blame] | 477 | mutex_unlock(&connector->dev->mode_config.mutex); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 478 | |
| 479 | if (copy_to_user(user_buff, buf, len)) { |
| 480 | kfree(buf); |
| 481 | rc = -EFAULT; |
| 482 | goto error; |
| 483 | } |
| 484 | |
| 485 | *ppos += len; |
| 486 | kfree(buf); |
| 487 | |
| 488 | return len; |
| 489 | error: |
| 490 | return rc; |
| 491 | } |
| 492 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 493 | static ssize_t dp_debug_read_info(struct file *file, char __user *user_buff, |
| 494 | size_t count, loff_t *ppos) |
| 495 | { |
| 496 | struct dp_debug_private *debug = file->private_data; |
| 497 | char *buf; |
| 498 | u32 len = 0, rc = 0; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 499 | u32 max_size = SZ_4K; |
| 500 | |
| 501 | if (!debug) |
| 502 | return -ENODEV; |
| 503 | |
| 504 | if (*ppos) |
| 505 | return 0; |
| 506 | |
| 507 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
| 508 | if (!buf) |
| 509 | return -ENOMEM; |
| 510 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 511 | rc = snprintf(buf + len, max_size, "\tstate=0x%x\n", debug->aux->state); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 512 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 513 | goto error; |
| 514 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 515 | rc = snprintf(buf + len, max_size, "\tlink_rate=%u\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 516 | debug->panel->link_info.rate); |
| 517 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 518 | goto error; |
| 519 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 520 | rc = snprintf(buf + len, max_size, "\tnum_lanes=%u\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 521 | debug->panel->link_info.num_lanes); |
| 522 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 523 | goto error; |
| 524 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 525 | rc = snprintf(buf + len, max_size, "\tresolution=%dx%d@%dHz\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 526 | debug->panel->pinfo.h_active, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 527 | debug->panel->pinfo.v_active, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 528 | debug->panel->pinfo.refresh_rate); |
| 529 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 530 | goto error; |
| 531 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 532 | rc = snprintf(buf + len, max_size, "\tpclock=%dKHz\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 533 | debug->panel->pinfo.pixel_clk_khz); |
| 534 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 535 | goto error; |
| 536 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 537 | rc = snprintf(buf + len, max_size, "\tbpp=%d\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 538 | debug->panel->pinfo.bpp); |
| 539 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 540 | goto error; |
| 541 | |
| 542 | /* Link Information */ |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 543 | rc = snprintf(buf + len, max_size, "\ttest_req=%s\n", |
| 544 | dp_link_get_test_name(debug->link->sink_request)); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 545 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 546 | goto error; |
| 547 | |
| 548 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 549 | "\tlane_count=%d\n", debug->link->link_params.lane_count); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 550 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 551 | goto error; |
| 552 | |
| 553 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 554 | "\tbw_code=%d\n", debug->link->link_params.bw_code); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 555 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 556 | goto error; |
| 557 | |
| 558 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 559 | "\tv_level=%d\n", debug->link->phy_params.v_level); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 560 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 561 | goto error; |
| 562 | |
| 563 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 564 | "\tp_level=%d\n", debug->link->phy_params.p_level); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 565 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 566 | goto error; |
| 567 | |
| 568 | if (copy_to_user(user_buff, buf, len)) |
| 569 | goto error; |
| 570 | |
| 571 | *ppos += len; |
| 572 | |
| 573 | kfree(buf); |
| 574 | return len; |
| 575 | error: |
| 576 | kfree(buf); |
| 577 | return -EINVAL; |
| 578 | } |
| 579 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 580 | static ssize_t dp_debug_bw_code_read(struct file *file, |
| 581 | char __user *user_buff, size_t count, loff_t *ppos) |
| 582 | { |
| 583 | struct dp_debug_private *debug = file->private_data; |
| 584 | char *buf; |
| 585 | u32 len = 0; |
| 586 | |
| 587 | if (!debug) |
| 588 | return -ENODEV; |
| 589 | |
| 590 | if (*ppos) |
| 591 | return 0; |
| 592 | |
| 593 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
| 594 | if (!buf) |
| 595 | return -ENOMEM; |
| 596 | |
| 597 | len += snprintf(buf + len, (SZ_4K - len), |
| 598 | "max_bw_code = %d\n", debug->panel->max_bw_code); |
| 599 | |
| 600 | if (copy_to_user(user_buff, buf, len)) { |
| 601 | kfree(buf); |
| 602 | return -EFAULT; |
| 603 | } |
| 604 | |
| 605 | *ppos += len; |
| 606 | kfree(buf); |
| 607 | return len; |
| 608 | } |
| 609 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 610 | static ssize_t dp_debug_tpg_read(struct file *file, |
| 611 | char __user *user_buff, size_t count, loff_t *ppos) |
| 612 | { |
| 613 | struct dp_debug_private *debug = file->private_data; |
| 614 | char buf[SZ_8]; |
| 615 | u32 len = 0; |
| 616 | |
| 617 | if (!debug) |
| 618 | return -ENODEV; |
| 619 | |
| 620 | if (*ppos) |
| 621 | return 0; |
| 622 | |
| 623 | len += snprintf(buf, SZ_8, "%d\n", debug->dp_debug.tpg_state); |
| 624 | |
| 625 | if (copy_to_user(user_buff, buf, len)) |
| 626 | return -EFAULT; |
| 627 | |
| 628 | *ppos += len; |
| 629 | return len; |
| 630 | } |
| 631 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 632 | static ssize_t dp_debug_write_hdr(struct file *file, |
| 633 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 634 | { |
| 635 | struct drm_connector *connector; |
| 636 | struct sde_connector *c_conn; |
| 637 | struct sde_connector_state *c_state; |
| 638 | struct dp_debug_private *debug = file->private_data; |
| 639 | char buf[SZ_1K]; |
| 640 | size_t len = 0; |
| 641 | |
| 642 | if (!debug) |
| 643 | return -ENODEV; |
| 644 | |
| 645 | if (*ppos) |
| 646 | return 0; |
| 647 | |
| 648 | connector = *debug->connector; |
| 649 | c_conn = to_sde_connector(connector); |
| 650 | c_state = to_sde_connector_state(connector->state); |
| 651 | |
| 652 | /* Leave room for termination char */ |
| 653 | len = min_t(size_t, count, SZ_1K - 1); |
| 654 | if (copy_from_user(buf, user_buff, len)) |
| 655 | goto end; |
| 656 | |
| 657 | buf[len] = '\0'; |
| 658 | |
| 659 | if (sscanf(buf, "%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x", |
| 660 | &c_state->hdr_meta.hdr_supported, |
| 661 | &c_state->hdr_meta.hdr_state, |
| 662 | &c_state->hdr_meta.eotf, |
| 663 | &c_state->hdr_meta.display_primaries_x[0], |
| 664 | &c_state->hdr_meta.display_primaries_x[1], |
| 665 | &c_state->hdr_meta.display_primaries_x[2], |
| 666 | &c_state->hdr_meta.display_primaries_y[0], |
| 667 | &c_state->hdr_meta.display_primaries_y[1], |
| 668 | &c_state->hdr_meta.display_primaries_y[2], |
| 669 | &c_state->hdr_meta.white_point_x, |
| 670 | &c_state->hdr_meta.white_point_y, |
| 671 | &c_state->hdr_meta.max_luminance, |
| 672 | &c_state->hdr_meta.min_luminance, |
| 673 | &c_state->hdr_meta.max_content_light_level, |
| 674 | &c_state->hdr_meta.max_average_light_level) != 15) { |
| 675 | pr_err("invalid input\n"); |
| 676 | len = -EINVAL; |
| 677 | } |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 678 | |
| 679 | debug->panel->setup_hdr(debug->panel, &c_state->hdr_meta); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 680 | end: |
| 681 | return len; |
| 682 | } |
| 683 | |
| 684 | static ssize_t dp_debug_read_hdr(struct file *file, |
| 685 | char __user *user_buff, size_t count, loff_t *ppos) |
| 686 | { |
| 687 | struct dp_debug_private *debug = file->private_data; |
| 688 | char *buf; |
| 689 | u32 len = 0, i; |
| 690 | u32 max_size = SZ_4K; |
| 691 | int rc = 0; |
| 692 | struct drm_connector *connector; |
| 693 | struct sde_connector *c_conn; |
| 694 | struct sde_connector_state *c_state; |
| 695 | struct drm_msm_ext_hdr_metadata *hdr; |
| 696 | |
| 697 | if (!debug) { |
| 698 | pr_err("invalid data\n"); |
| 699 | rc = -ENODEV; |
| 700 | goto error; |
| 701 | } |
| 702 | |
| 703 | connector = *debug->connector; |
| 704 | |
| 705 | if (!connector) { |
| 706 | pr_err("connector is NULL\n"); |
| 707 | rc = -EINVAL; |
| 708 | goto error; |
| 709 | } |
| 710 | |
| 711 | if (*ppos) |
| 712 | goto error; |
| 713 | |
| 714 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
| 715 | if (!buf) { |
| 716 | rc = -ENOMEM; |
| 717 | goto error; |
| 718 | } |
| 719 | |
| 720 | c_conn = to_sde_connector(connector); |
| 721 | c_state = to_sde_connector_state(connector->state); |
| 722 | |
| 723 | hdr = &c_state->hdr_meta; |
| 724 | |
| 725 | rc = snprintf(buf + len, max_size, |
| 726 | "============SINK HDR PARAMETERS===========\n"); |
| 727 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 728 | goto error; |
| 729 | |
| 730 | rc = snprintf(buf + len, max_size, "eotf = %d\n", |
| 731 | connector->hdr_eotf); |
| 732 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 733 | goto error; |
| 734 | |
| 735 | rc = snprintf(buf + len, max_size, "type_one = %d\n", |
| 736 | connector->hdr_metadata_type_one); |
| 737 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 738 | goto error; |
| 739 | |
| 740 | rc = snprintf(buf + len, max_size, "max_luminance = %d\n", |
| 741 | connector->hdr_max_luminance); |
| 742 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 743 | goto error; |
| 744 | |
| 745 | rc = snprintf(buf + len, max_size, "avg_luminance = %d\n", |
| 746 | connector->hdr_avg_luminance); |
| 747 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 748 | goto error; |
| 749 | |
| 750 | rc = snprintf(buf + len, max_size, "min_luminance = %d\n", |
| 751 | connector->hdr_min_luminance); |
| 752 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 753 | goto error; |
| 754 | |
| 755 | rc = snprintf(buf + len, max_size, |
| 756 | "============VIDEO HDR PARAMETERS===========\n"); |
| 757 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 758 | goto error; |
| 759 | |
| 760 | rc = snprintf(buf + len, max_size, "hdr_state = %d\n", hdr->hdr_state); |
| 761 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 762 | goto error; |
| 763 | |
| 764 | rc = snprintf(buf + len, max_size, "hdr_supported = %d\n", |
| 765 | hdr->hdr_supported); |
| 766 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 767 | goto error; |
| 768 | |
| 769 | rc = snprintf(buf + len, max_size, "eotf = %d\n", hdr->eotf); |
| 770 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 771 | goto error; |
| 772 | |
| 773 | rc = snprintf(buf + len, max_size, "white_point_x = %d\n", |
| 774 | hdr->white_point_x); |
| 775 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 776 | goto error; |
| 777 | |
| 778 | rc = snprintf(buf + len, max_size, "white_point_y = %d\n", |
| 779 | hdr->white_point_y); |
| 780 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 781 | goto error; |
| 782 | |
| 783 | rc = snprintf(buf + len, max_size, "max_luminance = %d\n", |
| 784 | hdr->max_luminance); |
| 785 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 786 | goto error; |
| 787 | |
| 788 | rc = snprintf(buf + len, max_size, "min_luminance = %d\n", |
| 789 | hdr->min_luminance); |
| 790 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 791 | goto error; |
| 792 | |
| 793 | rc = snprintf(buf + len, max_size, "max_content_light_level = %d\n", |
| 794 | hdr->max_content_light_level); |
| 795 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 796 | goto error; |
| 797 | |
| 798 | rc = snprintf(buf + len, max_size, "min_content_light_level = %d\n", |
| 799 | hdr->max_average_light_level); |
| 800 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 801 | goto error; |
| 802 | |
| 803 | for (i = 0; i < HDR_PRIMARIES_COUNT; i++) { |
| 804 | rc = snprintf(buf + len, max_size, "primaries_x[%d] = %d\n", |
| 805 | i, hdr->display_primaries_x[i]); |
| 806 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 807 | goto error; |
| 808 | |
| 809 | rc = snprintf(buf + len, max_size, "primaries_y[%d] = %d\n", |
| 810 | i, hdr->display_primaries_y[i]); |
| 811 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 812 | goto error; |
| 813 | } |
| 814 | |
| 815 | if (copy_to_user(user_buff, buf, len)) { |
| 816 | kfree(buf); |
| 817 | rc = -EFAULT; |
| 818 | goto error; |
| 819 | } |
| 820 | |
| 821 | *ppos += len; |
| 822 | kfree(buf); |
| 823 | |
| 824 | return len; |
| 825 | error: |
| 826 | return rc; |
| 827 | } |
| 828 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 829 | static ssize_t dp_debug_write_sim(struct file *file, |
| 830 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 831 | { |
| 832 | struct dp_debug_private *debug = file->private_data; |
| 833 | char buf[SZ_8]; |
| 834 | size_t len = 0; |
| 835 | int sim; |
| 836 | |
| 837 | if (!debug) |
| 838 | return -ENODEV; |
| 839 | |
| 840 | if (*ppos) |
| 841 | return 0; |
| 842 | |
| 843 | /* Leave room for termination char */ |
| 844 | len = min_t(size_t, count, SZ_8 - 1); |
| 845 | if (copy_from_user(buf, user_buff, len)) |
| 846 | goto end; |
| 847 | |
| 848 | buf[len] = '\0'; |
| 849 | |
| 850 | if (kstrtoint(buf, 10, &sim) != 0) |
| 851 | goto end; |
| 852 | |
| 853 | if (sim) { |
| 854 | if (dp_debug_get_edid_buf(debug)) |
| 855 | goto end; |
| 856 | |
| 857 | if (dp_debug_get_dpcd_buf(debug)) |
| 858 | goto error; |
| 859 | } else { |
| 860 | if (debug->edid) { |
| 861 | devm_kfree(debug->dev, debug->edid); |
| 862 | debug->edid = NULL; |
| 863 | } |
| 864 | |
| 865 | if (debug->dpcd) { |
| 866 | devm_kfree(debug->dev, debug->dpcd); |
| 867 | debug->dpcd = NULL; |
| 868 | } |
| 869 | } |
| 870 | |
| 871 | debug->dp_debug.sim_mode = !!sim; |
| 872 | |
| 873 | debug->aux->set_sim_mode(debug->aux, debug->dp_debug.sim_mode, |
| 874 | debug->edid, debug->dpcd); |
| 875 | end: |
| 876 | return len; |
| 877 | error: |
| 878 | devm_kfree(debug->dev, debug->edid); |
| 879 | return len; |
| 880 | } |
| 881 | |
| 882 | static ssize_t dp_debug_write_attention(struct file *file, |
| 883 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 884 | { |
| 885 | struct dp_debug_private *debug = file->private_data; |
| 886 | char buf[SZ_8]; |
| 887 | size_t len = 0; |
| 888 | int vdo; |
| 889 | |
| 890 | if (!debug) |
| 891 | return -ENODEV; |
| 892 | |
| 893 | if (*ppos) |
| 894 | return 0; |
| 895 | |
| 896 | /* Leave room for termination char */ |
| 897 | len = min_t(size_t, count, SZ_8 - 1); |
| 898 | if (copy_from_user(buf, user_buff, len)) |
| 899 | goto end; |
| 900 | |
| 901 | buf[len] = '\0'; |
| 902 | |
| 903 | if (kstrtoint(buf, 10, &vdo) != 0) |
| 904 | goto end; |
| 905 | |
| 906 | debug->vdo = vdo; |
| 907 | |
| 908 | schedule_work(&debug->sim_work); |
| 909 | end: |
| 910 | return len; |
| 911 | } |
| 912 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 913 | static const struct file_operations dp_debug_fops = { |
| 914 | .open = simple_open, |
| 915 | .read = dp_debug_read_info, |
| 916 | }; |
| 917 | |
| 918 | static const struct file_operations edid_modes_fops = { |
| 919 | .open = simple_open, |
| 920 | .read = dp_debug_read_edid_modes, |
| 921 | .write = dp_debug_write_edid_modes, |
| 922 | }; |
| 923 | |
| 924 | static const struct file_operations hpd_fops = { |
| 925 | .open = simple_open, |
| 926 | .write = dp_debug_write_hpd, |
| 927 | }; |
| 928 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 929 | static const struct file_operations edid_fops = { |
| 930 | .open = simple_open, |
| 931 | .write = dp_debug_write_edid, |
| 932 | }; |
| 933 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 934 | static const struct file_operations dpcd_fops = { |
| 935 | .open = simple_open, |
| 936 | .write = dp_debug_write_dpcd, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 937 | .read = dp_debug_read_dpcd, |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 938 | }; |
| 939 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 940 | static const struct file_operations connected_fops = { |
| 941 | .open = simple_open, |
| 942 | .read = dp_debug_read_connected, |
| 943 | }; |
| 944 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 945 | static const struct file_operations bw_code_fops = { |
| 946 | .open = simple_open, |
| 947 | .read = dp_debug_bw_code_read, |
| 948 | .write = dp_debug_bw_code_write, |
| 949 | }; |
| 950 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 951 | static const struct file_operations tpg_fops = { |
| 952 | .open = simple_open, |
| 953 | .read = dp_debug_tpg_read, |
| 954 | .write = dp_debug_tpg_write, |
| 955 | }; |
| 956 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 957 | static const struct file_operations hdr_fops = { |
| 958 | .open = simple_open, |
| 959 | .write = dp_debug_write_hdr, |
| 960 | .read = dp_debug_read_hdr, |
| 961 | }; |
| 962 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 963 | static const struct file_operations sim_fops = { |
| 964 | .open = simple_open, |
| 965 | .write = dp_debug_write_sim, |
| 966 | }; |
| 967 | |
| 968 | static const struct file_operations attention_fops = { |
| 969 | .open = simple_open, |
| 970 | .write = dp_debug_write_attention, |
| 971 | }; |
| 972 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 973 | static int dp_debug_init(struct dp_debug *dp_debug) |
| 974 | { |
| 975 | int rc = 0; |
| 976 | struct dp_debug_private *debug = container_of(dp_debug, |
| 977 | struct dp_debug_private, dp_debug); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 978 | struct dentry *dir, *file; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 979 | |
| 980 | dir = debugfs_create_dir(DEBUG_NAME, NULL); |
| 981 | if (IS_ERR_OR_NULL(dir)) { |
Padmanabhan Komanduru | e503414 | 2017-11-13 16:50:19 +0530 | [diff] [blame] | 982 | if (!dir) |
| 983 | rc = -EINVAL; |
| 984 | else |
| 985 | rc = PTR_ERR(dir); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 986 | pr_err("[%s] debugfs create dir failed, rc = %d\n", |
| 987 | DEBUG_NAME, rc); |
| 988 | goto error; |
| 989 | } |
| 990 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 991 | debug->root = dir; |
| 992 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 993 | file = debugfs_create_file("dp_debug", 0444, dir, |
| 994 | debug, &dp_debug_fops); |
| 995 | if (IS_ERR_OR_NULL(file)) { |
| 996 | rc = PTR_ERR(file); |
| 997 | pr_err("[%s] debugfs create file failed, rc=%d\n", |
| 998 | DEBUG_NAME, rc); |
| 999 | goto error_remove_dir; |
| 1000 | } |
| 1001 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1002 | file = debugfs_create_file("edid_modes", 0644, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1003 | debug, &edid_modes_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1004 | if (IS_ERR_OR_NULL(file)) { |
| 1005 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1006 | pr_err("[%s] debugfs create edid_modes failed, rc=%d\n", |
| 1007 | DEBUG_NAME, rc); |
| 1008 | goto error_remove_dir; |
| 1009 | } |
| 1010 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1011 | file = debugfs_create_file("hpd", 0644, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1012 | debug, &hpd_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1013 | if (IS_ERR_OR_NULL(file)) { |
| 1014 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1015 | pr_err("[%s] debugfs hpd failed, rc=%d\n", |
| 1016 | DEBUG_NAME, rc); |
| 1017 | goto error_remove_dir; |
| 1018 | } |
| 1019 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1020 | file = debugfs_create_file("connected", 0444, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1021 | debug, &connected_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1022 | if (IS_ERR_OR_NULL(file)) { |
| 1023 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1024 | pr_err("[%s] debugfs connected failed, rc=%d\n", |
| 1025 | DEBUG_NAME, rc); |
| 1026 | goto error_remove_dir; |
| 1027 | } |
| 1028 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1029 | file = debugfs_create_file("max_bw_code", 0644, dir, |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1030 | debug, &bw_code_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1031 | if (IS_ERR_OR_NULL(file)) { |
| 1032 | rc = PTR_ERR(file); |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1033 | pr_err("[%s] debugfs max_bw_code failed, rc=%d\n", |
| 1034 | DEBUG_NAME, rc); |
| 1035 | goto error_remove_dir; |
| 1036 | } |
| 1037 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1038 | file = debugfs_create_file("edid", 0644, dir, |
| 1039 | debug, &edid_fops); |
| 1040 | if (IS_ERR_OR_NULL(file)) { |
| 1041 | rc = PTR_ERR(file); |
| 1042 | pr_err("[%s] debugfs edid failed, rc=%d\n", |
| 1043 | DEBUG_NAME, rc); |
| 1044 | goto error_remove_dir; |
| 1045 | } |
| 1046 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1047 | file = debugfs_create_file("dpcd", 0644, dir, |
| 1048 | debug, &dpcd_fops); |
| 1049 | if (IS_ERR_OR_NULL(file)) { |
| 1050 | rc = PTR_ERR(file); |
| 1051 | pr_err("[%s] debugfs dpcd failed, rc=%d\n", |
| 1052 | DEBUG_NAME, rc); |
| 1053 | goto error_remove_dir; |
| 1054 | } |
| 1055 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 1056 | file = debugfs_create_file("tpg_ctrl", 0644, dir, |
| 1057 | debug, &tpg_fops); |
| 1058 | if (IS_ERR_OR_NULL(file)) { |
| 1059 | rc = PTR_ERR(file); |
| 1060 | pr_err("[%s] debugfs tpg failed, rc=%d\n", |
| 1061 | DEBUG_NAME, rc); |
| 1062 | goto error_remove_dir; |
| 1063 | } |
| 1064 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1065 | file = debugfs_create_file("hdr", 0644, dir, |
| 1066 | debug, &hdr_fops); |
| 1067 | |
| 1068 | if (IS_ERR_OR_NULL(file)) { |
| 1069 | rc = PTR_ERR(file); |
| 1070 | pr_err("[%s] debugfs hdr failed, rc=%d\n", |
| 1071 | DEBUG_NAME, rc); |
| 1072 | goto error_remove_dir; |
| 1073 | } |
| 1074 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1075 | file = debugfs_create_file("sim", 0644, dir, |
| 1076 | debug, &sim_fops); |
| 1077 | |
| 1078 | if (IS_ERR_OR_NULL(file)) { |
| 1079 | rc = PTR_ERR(file); |
| 1080 | pr_err("[%s] debugfs sim failed, rc=%d\n", |
| 1081 | DEBUG_NAME, rc); |
| 1082 | goto error_remove_dir; |
| 1083 | } |
| 1084 | |
| 1085 | file = debugfs_create_file("attention", 0644, dir, |
| 1086 | debug, &attention_fops); |
| 1087 | |
| 1088 | if (IS_ERR_OR_NULL(file)) { |
| 1089 | rc = PTR_ERR(file); |
| 1090 | pr_err("[%s] debugfs attention failed, rc=%d\n", |
| 1091 | DEBUG_NAME, rc); |
| 1092 | goto error_remove_dir; |
| 1093 | } |
| 1094 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1095 | return 0; |
| 1096 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1097 | error_remove_dir: |
Padmanabhan Komanduru | e503414 | 2017-11-13 16:50:19 +0530 | [diff] [blame] | 1098 | if (!file) |
| 1099 | rc = -EINVAL; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1100 | debugfs_remove_recursive(dir); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1101 | error: |
| 1102 | return rc; |
| 1103 | } |
| 1104 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1105 | static void dp_debug_sim_work(struct work_struct *work) |
| 1106 | { |
| 1107 | struct dp_debug_private *debug = |
| 1108 | container_of(work, typeof(*debug), sim_work); |
| 1109 | |
| 1110 | debug->usbpd->simulate_attention(debug->usbpd, debug->vdo); |
| 1111 | } |
| 1112 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1113 | struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel, |
| 1114 | struct dp_usbpd *usbpd, struct dp_link *link, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1115 | struct dp_aux *aux, struct drm_connector **connector) |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1116 | { |
| 1117 | int rc = 0; |
| 1118 | struct dp_debug_private *debug; |
| 1119 | struct dp_debug *dp_debug; |
| 1120 | |
| 1121 | if (!dev || !panel || !usbpd || !link) { |
| 1122 | pr_err("invalid input\n"); |
| 1123 | rc = -EINVAL; |
| 1124 | goto error; |
| 1125 | } |
| 1126 | |
| 1127 | debug = devm_kzalloc(dev, sizeof(*debug), GFP_KERNEL); |
| 1128 | if (!debug) { |
| 1129 | rc = -ENOMEM; |
| 1130 | goto error; |
| 1131 | } |
| 1132 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1133 | INIT_WORK(&debug->sim_work, dp_debug_sim_work); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1134 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1135 | debug->dp_debug.debug_en = false; |
| 1136 | debug->usbpd = usbpd; |
| 1137 | debug->link = link; |
| 1138 | debug->panel = panel; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1139 | debug->aux = aux; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1140 | debug->dev = dev; |
| 1141 | debug->connector = connector; |
| 1142 | |
| 1143 | dp_debug = &debug->dp_debug; |
| 1144 | dp_debug->vdisplay = 0; |
| 1145 | dp_debug->hdisplay = 0; |
| 1146 | dp_debug->vrefresh = 0; |
| 1147 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1148 | rc = dp_debug_init(dp_debug); |
| 1149 | if (rc) { |
| 1150 | devm_kfree(dev, debug); |
| 1151 | goto error; |
| 1152 | } |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1153 | |
| 1154 | return dp_debug; |
| 1155 | error: |
| 1156 | return ERR_PTR(rc); |
| 1157 | } |
| 1158 | |
| 1159 | static int dp_debug_deinit(struct dp_debug *dp_debug) |
| 1160 | { |
| 1161 | struct dp_debug_private *debug; |
| 1162 | |
| 1163 | if (!dp_debug) |
| 1164 | return -EINVAL; |
| 1165 | |
| 1166 | debug = container_of(dp_debug, struct dp_debug_private, dp_debug); |
| 1167 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1168 | debugfs_remove_recursive(debug->root); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1169 | |
| 1170 | return 0; |
| 1171 | } |
| 1172 | |
| 1173 | void dp_debug_put(struct dp_debug *dp_debug) |
| 1174 | { |
| 1175 | struct dp_debug_private *debug; |
| 1176 | |
| 1177 | if (!dp_debug) |
| 1178 | return; |
| 1179 | |
| 1180 | debug = container_of(dp_debug, struct dp_debug_private, dp_debug); |
| 1181 | |
| 1182 | dp_debug_deinit(dp_debug); |
| 1183 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1184 | if (debug->edid) |
| 1185 | devm_kfree(debug->dev, debug->edid); |
| 1186 | |
| 1187 | if (debug->dpcd) |
| 1188 | devm_kfree(debug->dev, debug->dpcd); |
| 1189 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1190 | devm_kfree(debug->dev, debug); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1191 | } |