Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1 | /* |
Narender Ankam | b067def | 2020-01-06 15:06:10 +0530 | [diff] [blame] | 2 | * Copyright (c) 2017-2020, 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 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 19 | #include "dp_power.h" |
| 20 | #include "dp_catalog.h" |
| 21 | #include "dp_aux.h" |
| 22 | #include "dp_ctrl.h" |
| 23 | #include "dp_debug.h" |
| 24 | #include "drm_connector.h" |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 25 | #include "sde_connector.h" |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 26 | #include "dp_display.h" |
| 27 | |
| 28 | #define DEBUG_NAME "drm_dp" |
| 29 | |
| 30 | struct dp_debug_private { |
| 31 | struct dentry *root; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 32 | u8 *edid; |
| 33 | u32 edid_size; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 34 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 35 | u8 *dpcd; |
| 36 | u32 dpcd_size; |
| 37 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 38 | int vdo; |
| 39 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 40 | char exe_mode[SZ_32]; |
| 41 | char reg_dump[SZ_32]; |
| 42 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 43 | struct dp_usbpd *usbpd; |
| 44 | struct dp_link *link; |
| 45 | struct dp_panel *panel; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 46 | struct dp_aux *aux; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 47 | struct dp_catalog *catalog; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 48 | struct drm_connector **connector; |
| 49 | struct device *dev; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 50 | struct work_struct sim_work; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 51 | struct dp_debug dp_debug; |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 52 | struct mutex lock; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 53 | }; |
| 54 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 55 | static int dp_debug_get_edid_buf(struct dp_debug_private *debug) |
| 56 | { |
| 57 | int rc = 0; |
| 58 | |
| 59 | if (!debug->edid) { |
| 60 | debug->edid = devm_kzalloc(debug->dev, SZ_256, GFP_KERNEL); |
| 61 | if (!debug->edid) { |
| 62 | rc = -ENOMEM; |
| 63 | goto end; |
| 64 | } |
| 65 | |
| 66 | debug->edid_size = SZ_256; |
| 67 | } |
| 68 | end: |
| 69 | return rc; |
| 70 | } |
| 71 | |
| 72 | static int dp_debug_get_dpcd_buf(struct dp_debug_private *debug) |
| 73 | { |
| 74 | int rc = 0; |
| 75 | |
| 76 | if (!debug->dpcd) { |
| 77 | debug->dpcd = devm_kzalloc(debug->dev, SZ_1K, GFP_KERNEL); |
| 78 | if (!debug->dpcd) { |
| 79 | rc = -ENOMEM; |
| 80 | goto end; |
| 81 | } |
| 82 | |
| 83 | debug->dpcd_size = SZ_1K; |
| 84 | } |
| 85 | end: |
| 86 | return rc; |
| 87 | } |
| 88 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 89 | static ssize_t dp_debug_write_edid(struct file *file, |
| 90 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 91 | { |
| 92 | struct dp_debug_private *debug = file->private_data; |
| 93 | u8 *buf = NULL, *buf_t = NULL, *edid = NULL; |
| 94 | const int char_to_nib = 2; |
| 95 | size_t edid_size = 0; |
| 96 | size_t size = 0, edid_buf_index = 0; |
| 97 | ssize_t rc = count; |
| 98 | |
| 99 | if (!debug) |
| 100 | return -ENODEV; |
| 101 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 102 | mutex_lock(&debug->lock); |
| 103 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 104 | if (*ppos) |
| 105 | goto bail; |
| 106 | |
| 107 | size = min_t(size_t, count, SZ_1K); |
| 108 | |
| 109 | buf = kzalloc(size, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 110 | if (ZERO_OR_NULL_PTR(buf)) { |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 111 | rc = -ENOMEM; |
| 112 | goto bail; |
| 113 | } |
| 114 | |
| 115 | if (copy_from_user(buf, user_buff, size)) |
| 116 | goto bail; |
| 117 | |
| 118 | edid_size = size / char_to_nib; |
| 119 | buf_t = buf; |
| 120 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 121 | if (dp_debug_get_edid_buf(debug)) |
| 122 | goto bail; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 123 | |
| 124 | if (edid_size != debug->edid_size) { |
Ray Zhang | 18b469da | 2018-08-24 16:50:13 +0800 | [diff] [blame] | 125 | pr_debug("realloc debug edid\n"); |
| 126 | |
| 127 | if (debug->edid) { |
| 128 | devm_kfree(debug->dev, debug->edid); |
| 129 | |
| 130 | debug->edid = devm_kzalloc(debug->dev, |
| 131 | edid_size, GFP_KERNEL); |
| 132 | if (!debug->edid) { |
| 133 | rc = -ENOMEM; |
| 134 | goto bail; |
| 135 | } |
| 136 | |
| 137 | debug->edid_size = edid_size; |
| 138 | |
| 139 | debug->aux->set_sim_mode(debug->aux, |
| 140 | debug->dp_debug.sim_mode, |
| 141 | debug->edid, debug->dpcd); |
| 142 | } |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | while (edid_size--) { |
| 146 | char t[3]; |
| 147 | int d; |
| 148 | |
| 149 | memcpy(t, buf_t, sizeof(char) * char_to_nib); |
| 150 | t[char_to_nib] = '\0'; |
| 151 | |
| 152 | if (kstrtoint(t, 16, &d)) { |
| 153 | pr_err("kstrtoint error\n"); |
| 154 | goto bail; |
| 155 | } |
| 156 | |
| 157 | if (edid_buf_index < debug->edid_size) |
| 158 | debug->edid[edid_buf_index++] = d; |
| 159 | |
| 160 | buf_t += char_to_nib; |
| 161 | } |
| 162 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 163 | edid = debug->edid; |
| 164 | bail: |
| 165 | kfree(buf); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 166 | |
| 167 | if (!debug->dp_debug.sim_mode) |
| 168 | debug->panel->set_edid(debug->panel, edid); |
| 169 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 170 | mutex_unlock(&debug->lock); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 171 | return rc; |
| 172 | } |
| 173 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 174 | static ssize_t dp_debug_write_dpcd(struct file *file, |
| 175 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 176 | { |
| 177 | struct dp_debug_private *debug = file->private_data; |
| 178 | u8 *buf = NULL, *buf_t = NULL, *dpcd = NULL; |
| 179 | const int char_to_nib = 2; |
| 180 | size_t dpcd_size = 0; |
| 181 | size_t size = 0, dpcd_buf_index = 0; |
| 182 | ssize_t rc = count; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 183 | char offset_ch[5]; |
| 184 | u32 offset; |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 185 | |
| 186 | if (!debug) |
| 187 | return -ENODEV; |
| 188 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 189 | mutex_lock(&debug->lock); |
| 190 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 191 | if (*ppos) |
| 192 | goto bail; |
| 193 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 194 | size = min_t(size_t, count, SZ_2K); |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 195 | if (size < 4) |
| 196 | goto bail; |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 197 | |
| 198 | buf = kzalloc(size, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 199 | if (ZERO_OR_NULL_PTR(buf)) { |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 200 | rc = -ENOMEM; |
| 201 | goto bail; |
| 202 | } |
| 203 | |
| 204 | if (copy_from_user(buf, user_buff, size)) |
| 205 | goto bail; |
| 206 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 207 | memcpy(offset_ch, buf, 4); |
| 208 | offset_ch[4] = '\0'; |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 209 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 210 | if (kstrtoint(offset_ch, 16, &offset)) { |
| 211 | pr_err("offset kstrtoint error\n"); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 212 | goto bail; |
| 213 | } |
| 214 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 215 | if (dp_debug_get_dpcd_buf(debug)) |
| 216 | goto bail; |
| 217 | |
| 218 | if (offset == 0xFFFF) { |
| 219 | pr_err("clearing dpcd\n"); |
| 220 | memset(debug->dpcd, 0, debug->dpcd_size); |
| 221 | goto bail; |
| 222 | } |
| 223 | |
| 224 | size -= 4; |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 225 | if (size == 0) |
| 226 | goto bail; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 227 | |
| 228 | dpcd_size = size / char_to_nib; |
| 229 | buf_t = buf + 4; |
| 230 | |
| 231 | dpcd_buf_index = offset; |
| 232 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 233 | while (dpcd_size--) { |
| 234 | char t[3]; |
| 235 | int d; |
| 236 | |
| 237 | memcpy(t, buf_t, sizeof(char) * char_to_nib); |
| 238 | t[char_to_nib] = '\0'; |
| 239 | |
| 240 | if (kstrtoint(t, 16, &d)) { |
| 241 | pr_err("kstrtoint error\n"); |
| 242 | goto bail; |
| 243 | } |
| 244 | |
| 245 | if (dpcd_buf_index < debug->dpcd_size) |
| 246 | debug->dpcd[dpcd_buf_index++] = d; |
| 247 | |
| 248 | buf_t += char_to_nib; |
| 249 | } |
| 250 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 251 | dpcd = debug->dpcd; |
| 252 | bail: |
| 253 | kfree(buf); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 254 | if (debug->dp_debug.sim_mode) |
| 255 | debug->aux->dpcd_updated(debug->aux); |
| 256 | else |
| 257 | debug->panel->set_dpcd(debug->panel, dpcd); |
| 258 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 259 | mutex_unlock(&debug->lock); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 260 | return rc; |
| 261 | } |
| 262 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 263 | static ssize_t dp_debug_read_dpcd(struct file *file, |
| 264 | char __user *user_buff, size_t count, loff_t *ppos) |
| 265 | { |
| 266 | struct dp_debug_private *debug = file->private_data; |
| 267 | char buf[SZ_8]; |
| 268 | u32 len = 0; |
| 269 | |
| 270 | if (!debug) |
| 271 | return -ENODEV; |
| 272 | |
| 273 | if (*ppos) |
| 274 | return 0; |
| 275 | |
| 276 | len += snprintf(buf, SZ_8, "0x%x\n", debug->aux->reg); |
| 277 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 278 | len = min_t(size_t, count, len); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 279 | if (copy_to_user(user_buff, buf, len)) |
| 280 | return -EFAULT; |
| 281 | |
| 282 | *ppos += len; |
| 283 | return len; |
| 284 | } |
| 285 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 286 | static ssize_t dp_debug_write_hpd(struct file *file, |
| 287 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 288 | { |
| 289 | struct dp_debug_private *debug = file->private_data; |
| 290 | char buf[SZ_8]; |
| 291 | size_t len = 0; |
| 292 | int hpd; |
| 293 | |
| 294 | if (!debug) |
| 295 | return -ENODEV; |
| 296 | |
| 297 | if (*ppos) |
| 298 | return 0; |
| 299 | |
| 300 | /* Leave room for termination char */ |
| 301 | len = min_t(size_t, count, SZ_8 - 1); |
| 302 | if (copy_from_user(buf, user_buff, len)) |
| 303 | goto end; |
| 304 | |
| 305 | buf[len] = '\0'; |
| 306 | |
| 307 | if (kstrtoint(buf, 10, &hpd) != 0) |
| 308 | goto end; |
| 309 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 310 | hpd &= 0x3; |
| 311 | |
| 312 | debug->dp_debug.psm_enabled = !!(hpd & BIT(1)); |
| 313 | |
| 314 | debug->usbpd->simulate_connect(debug->usbpd, !!(hpd & BIT(0))); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 315 | end: |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 316 | return len; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | static ssize_t dp_debug_write_edid_modes(struct file *file, |
| 320 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 321 | { |
| 322 | struct dp_debug_private *debug = file->private_data; |
| 323 | char buf[SZ_32]; |
| 324 | size_t len = 0; |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 325 | int hdisplay = 0, vdisplay = 0, vrefresh = 0, aspect_ratio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 326 | |
| 327 | if (!debug) |
| 328 | return -ENODEV; |
| 329 | |
| 330 | if (*ppos) |
| 331 | goto end; |
| 332 | |
| 333 | /* Leave room for termination char */ |
| 334 | len = min_t(size_t, count, SZ_32 - 1); |
| 335 | if (copy_from_user(buf, user_buff, len)) |
| 336 | goto clear; |
| 337 | |
| 338 | buf[len] = '\0'; |
| 339 | |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 340 | if (sscanf(buf, "%d %d %d %d", &hdisplay, &vdisplay, &vrefresh, |
| 341 | &aspect_ratio) != 4) |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 342 | goto clear; |
| 343 | |
| 344 | if (!hdisplay || !vdisplay || !vrefresh) |
| 345 | goto clear; |
| 346 | |
| 347 | debug->dp_debug.debug_en = true; |
| 348 | debug->dp_debug.hdisplay = hdisplay; |
| 349 | debug->dp_debug.vdisplay = vdisplay; |
| 350 | debug->dp_debug.vrefresh = vrefresh; |
Tatenda Chipeperekwa | 5951040 | 2017-09-28 12:50:58 -0700 | [diff] [blame] | 351 | debug->dp_debug.aspect_ratio = aspect_ratio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 352 | goto end; |
| 353 | clear: |
| 354 | pr_debug("clearing debug modes\n"); |
| 355 | debug->dp_debug.debug_en = false; |
| 356 | end: |
| 357 | return len; |
| 358 | } |
| 359 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 360 | static ssize_t dp_debug_bw_code_write(struct file *file, |
| 361 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 362 | { |
| 363 | struct dp_debug_private *debug = file->private_data; |
| 364 | char buf[SZ_8]; |
| 365 | size_t len = 0; |
| 366 | u32 max_bw_code = 0; |
| 367 | |
| 368 | if (!debug) |
| 369 | return -ENODEV; |
| 370 | |
| 371 | if (*ppos) |
| 372 | return 0; |
| 373 | |
| 374 | /* Leave room for termination char */ |
| 375 | len = min_t(size_t, count, SZ_8 - 1); |
| 376 | if (copy_from_user(buf, user_buff, len)) |
| 377 | return 0; |
| 378 | |
| 379 | buf[len] = '\0'; |
| 380 | |
| 381 | if (kstrtoint(buf, 10, &max_bw_code) != 0) |
| 382 | return 0; |
| 383 | |
| 384 | if (!is_link_rate_valid(max_bw_code)) { |
| 385 | pr_err("Unsupported bw code %d\n", max_bw_code); |
| 386 | return len; |
| 387 | } |
| 388 | debug->panel->max_bw_code = max_bw_code; |
| 389 | pr_debug("max_bw_code: %d\n", max_bw_code); |
| 390 | |
| 391 | return len; |
| 392 | } |
| 393 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 394 | static ssize_t dp_debug_tpg_write(struct file *file, |
| 395 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 396 | { |
| 397 | struct dp_debug_private *debug = file->private_data; |
| 398 | char buf[SZ_8]; |
| 399 | size_t len = 0; |
| 400 | u32 tpg_state = 0; |
| 401 | |
| 402 | if (!debug) |
| 403 | return -ENODEV; |
| 404 | |
| 405 | if (*ppos) |
| 406 | return 0; |
| 407 | |
| 408 | /* Leave room for termination char */ |
| 409 | len = min_t(size_t, count, SZ_8 - 1); |
| 410 | if (copy_from_user(buf, user_buff, len)) |
| 411 | goto bail; |
| 412 | |
| 413 | buf[len] = '\0'; |
| 414 | |
| 415 | if (kstrtoint(buf, 10, &tpg_state) != 0) |
| 416 | goto bail; |
| 417 | |
| 418 | tpg_state &= 0x1; |
| 419 | pr_debug("tpg_state: %d\n", tpg_state); |
| 420 | |
| 421 | if (tpg_state == debug->dp_debug.tpg_state) |
| 422 | goto bail; |
| 423 | |
| 424 | if (debug->panel) |
| 425 | debug->panel->tpg_config(debug->panel, tpg_state); |
| 426 | |
| 427 | debug->dp_debug.tpg_state = tpg_state; |
| 428 | bail: |
| 429 | return len; |
| 430 | } |
| 431 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 432 | static ssize_t dp_debug_write_exe_mode(struct file *file, |
| 433 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 434 | { |
| 435 | struct dp_debug_private *debug = file->private_data; |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 436 | char buf[SZ_32]; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 437 | size_t len = 0; |
| 438 | |
| 439 | if (!debug) |
| 440 | return -ENODEV; |
| 441 | |
| 442 | if (*ppos) |
| 443 | return 0; |
| 444 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 445 | /* Leave room for termination char */ |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 446 | len = min_t(size_t, count, SZ_32 - 1); |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 447 | if (copy_from_user(buf, user_buff, len)) |
| 448 | goto end; |
| 449 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 450 | buf[len] = '\0'; |
| 451 | |
| 452 | if (sscanf(buf, "%3s", debug->exe_mode) != 1) |
| 453 | goto end; |
| 454 | |
| 455 | if (strcmp(debug->exe_mode, "hw") && |
| 456 | strcmp(debug->exe_mode, "sw") && |
| 457 | strcmp(debug->exe_mode, "all")) |
| 458 | goto end; |
| 459 | |
| 460 | debug->catalog->set_exe_mode(debug->catalog, debug->exe_mode); |
| 461 | end: |
| 462 | return len; |
| 463 | } |
| 464 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 465 | static ssize_t dp_debug_read_connected(struct file *file, |
| 466 | char __user *user_buff, size_t count, loff_t *ppos) |
| 467 | { |
| 468 | struct dp_debug_private *debug = file->private_data; |
| 469 | char buf[SZ_8]; |
| 470 | u32 len = 0; |
| 471 | |
| 472 | if (!debug) |
| 473 | return -ENODEV; |
| 474 | |
| 475 | if (*ppos) |
| 476 | return 0; |
| 477 | |
| 478 | len += snprintf(buf, SZ_8, "%d\n", debug->usbpd->hpd_high); |
| 479 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 480 | len = min_t(size_t, count, len); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 481 | if (copy_to_user(user_buff, buf, len)) |
| 482 | return -EFAULT; |
| 483 | |
| 484 | *ppos += len; |
| 485 | return len; |
| 486 | } |
| 487 | |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 488 | static int dp_debug_check_buffer_overflow(int rc, int *max_size, int *len) |
| 489 | { |
| 490 | if (rc >= *max_size) { |
| 491 | pr_err("buffer overflow\n"); |
| 492 | return -EINVAL; |
| 493 | } |
| 494 | *len += rc; |
| 495 | *max_size = SZ_4K - *len; |
| 496 | |
| 497 | return 0; |
| 498 | } |
| 499 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 500 | static ssize_t dp_debug_read_edid_modes(struct file *file, |
| 501 | char __user *user_buff, size_t count, loff_t *ppos) |
| 502 | { |
| 503 | struct dp_debug_private *debug = file->private_data; |
| 504 | char *buf; |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 505 | u32 len = 0, ret = 0, max_size = SZ_4K; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 506 | int rc = 0; |
| 507 | struct drm_connector *connector; |
| 508 | struct drm_display_mode *mode; |
| 509 | |
| 510 | if (!debug) { |
| 511 | pr_err("invalid data\n"); |
| 512 | rc = -ENODEV; |
| 513 | goto error; |
| 514 | } |
| 515 | |
| 516 | connector = *debug->connector; |
| 517 | |
| 518 | if (!connector) { |
| 519 | pr_err("connector is NULL\n"); |
| 520 | rc = -EINVAL; |
| 521 | goto error; |
| 522 | } |
| 523 | |
| 524 | if (*ppos) |
| 525 | goto error; |
| 526 | |
| 527 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 528 | if (ZERO_OR_NULL_PTR(buf)) { |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 529 | rc = -ENOMEM; |
| 530 | goto error; |
| 531 | } |
| 532 | |
Lloyd Atkinson | c34a6ff | 2017-11-06 14:00:16 -0500 | [diff] [blame] | 533 | mutex_lock(&connector->dev->mode_config.mutex); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 534 | list_for_each_entry(mode, &connector->modes, head) { |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 535 | ret = snprintf(buf + len, max_size, |
Narender Ankam | b067def | 2020-01-06 15:06:10 +0530 | [diff] [blame] | 536 | "%d %s %d %d %d %d %d 0x%x\n", |
| 537 | mode->vic_id, mode->name, mode->vrefresh, |
| 538 | mode->picture_aspect_ratio, mode->htotal, mode->vtotal, |
| 539 | mode->clock, mode->flags); |
Padmanabhan Komanduru | 682ef58 | 2017-12-20 16:26:46 +0530 | [diff] [blame] | 540 | if (dp_debug_check_buffer_overflow(ret, &max_size, &len)) |
| 541 | break; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 542 | } |
Lloyd Atkinson | c34a6ff | 2017-11-06 14:00:16 -0500 | [diff] [blame] | 543 | mutex_unlock(&connector->dev->mode_config.mutex); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 544 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 545 | len = min_t(size_t, count, len); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 546 | if (copy_to_user(user_buff, buf, len)) { |
| 547 | kfree(buf); |
| 548 | rc = -EFAULT; |
| 549 | goto error; |
| 550 | } |
| 551 | |
| 552 | *ppos += len; |
| 553 | kfree(buf); |
| 554 | |
| 555 | return len; |
| 556 | error: |
| 557 | return rc; |
| 558 | } |
| 559 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 560 | static ssize_t dp_debug_read_info(struct file *file, char __user *user_buff, |
| 561 | size_t count, loff_t *ppos) |
| 562 | { |
| 563 | struct dp_debug_private *debug = file->private_data; |
| 564 | char *buf; |
| 565 | u32 len = 0, rc = 0; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 566 | u32 max_size = SZ_4K; |
| 567 | |
| 568 | if (!debug) |
| 569 | return -ENODEV; |
| 570 | |
| 571 | if (*ppos) |
| 572 | return 0; |
| 573 | |
| 574 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 575 | if (ZERO_OR_NULL_PTR(buf)) |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 576 | return -ENOMEM; |
| 577 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 578 | 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] | 579 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 580 | goto error; |
| 581 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 582 | rc = snprintf(buf + len, max_size, "\tlink_rate=%u\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 583 | debug->panel->link_info.rate); |
| 584 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 585 | goto error; |
| 586 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 587 | rc = snprintf(buf + len, max_size, "\tnum_lanes=%u\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 588 | debug->panel->link_info.num_lanes); |
| 589 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 590 | goto error; |
| 591 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 592 | rc = snprintf(buf + len, max_size, "\tresolution=%dx%d@%dHz\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 593 | debug->panel->pinfo.h_active, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 594 | debug->panel->pinfo.v_active, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 595 | debug->panel->pinfo.refresh_rate); |
| 596 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 597 | goto error; |
| 598 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 599 | rc = snprintf(buf + len, max_size, "\tpclock=%dKHz\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 600 | debug->panel->pinfo.pixel_clk_khz); |
| 601 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 602 | goto error; |
| 603 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 604 | rc = snprintf(buf + len, max_size, "\tbpp=%d\n", |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 605 | debug->panel->pinfo.bpp); |
| 606 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 607 | goto error; |
| 608 | |
| 609 | /* Link Information */ |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 610 | rc = snprintf(buf + len, max_size, "\ttest_req=%s\n", |
| 611 | dp_link_get_test_name(debug->link->sink_request)); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 612 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 613 | goto error; |
| 614 | |
| 615 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 616 | "\tlane_count=%d\n", debug->link->link_params.lane_count); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 617 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 618 | goto error; |
| 619 | |
| 620 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 621 | "\tbw_code=%d\n", debug->link->link_params.bw_code); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 622 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 623 | goto error; |
| 624 | |
| 625 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 626 | "\tv_level=%d\n", debug->link->phy_params.v_level); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 627 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 628 | goto error; |
| 629 | |
| 630 | rc = snprintf(buf + len, max_size, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 631 | "\tp_level=%d\n", debug->link->phy_params.p_level); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 632 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 633 | goto error; |
| 634 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 635 | len = min_t(size_t, count, len); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 636 | if (copy_to_user(user_buff, buf, len)) |
| 637 | goto error; |
| 638 | |
| 639 | *ppos += len; |
| 640 | |
| 641 | kfree(buf); |
| 642 | return len; |
| 643 | error: |
| 644 | kfree(buf); |
| 645 | return -EINVAL; |
| 646 | } |
| 647 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 648 | static ssize_t dp_debug_bw_code_read(struct file *file, |
| 649 | char __user *user_buff, size_t count, loff_t *ppos) |
| 650 | { |
| 651 | struct dp_debug_private *debug = file->private_data; |
| 652 | char *buf; |
| 653 | u32 len = 0; |
| 654 | |
| 655 | if (!debug) |
| 656 | return -ENODEV; |
| 657 | |
| 658 | if (*ppos) |
| 659 | return 0; |
| 660 | |
| 661 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 662 | if (ZERO_OR_NULL_PTR(buf)) |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 663 | return -ENOMEM; |
| 664 | |
| 665 | len += snprintf(buf + len, (SZ_4K - len), |
| 666 | "max_bw_code = %d\n", debug->panel->max_bw_code); |
| 667 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 668 | len = min_t(size_t, count, len); |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 669 | if (copy_to_user(user_buff, buf, len)) { |
| 670 | kfree(buf); |
| 671 | return -EFAULT; |
| 672 | } |
| 673 | |
| 674 | *ppos += len; |
| 675 | kfree(buf); |
| 676 | return len; |
| 677 | } |
| 678 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 679 | static ssize_t dp_debug_tpg_read(struct file *file, |
| 680 | char __user *user_buff, size_t count, loff_t *ppos) |
| 681 | { |
| 682 | struct dp_debug_private *debug = file->private_data; |
| 683 | char buf[SZ_8]; |
| 684 | u32 len = 0; |
| 685 | |
| 686 | if (!debug) |
| 687 | return -ENODEV; |
| 688 | |
| 689 | if (*ppos) |
| 690 | return 0; |
| 691 | |
| 692 | len += snprintf(buf, SZ_8, "%d\n", debug->dp_debug.tpg_state); |
| 693 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 694 | len = min_t(size_t, count, len); |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 695 | if (copy_to_user(user_buff, buf, len)) |
| 696 | return -EFAULT; |
| 697 | |
| 698 | *ppos += len; |
| 699 | return len; |
| 700 | } |
| 701 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 702 | static ssize_t dp_debug_write_hdr(struct file *file, |
| 703 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 704 | { |
| 705 | struct drm_connector *connector; |
| 706 | struct sde_connector *c_conn; |
| 707 | struct sde_connector_state *c_state; |
| 708 | struct dp_debug_private *debug = file->private_data; |
Jayant Shekhar | 82e3c88 | 2018-06-22 18:04:09 +0530 | [diff] [blame] | 709 | char buf[SZ_512]; |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 710 | size_t len = 0; |
| 711 | |
| 712 | if (!debug) |
| 713 | return -ENODEV; |
| 714 | |
| 715 | if (*ppos) |
| 716 | return 0; |
| 717 | |
| 718 | connector = *debug->connector; |
| 719 | c_conn = to_sde_connector(connector); |
| 720 | c_state = to_sde_connector_state(connector->state); |
| 721 | |
| 722 | /* Leave room for termination char */ |
Jayant Shekhar | 82e3c88 | 2018-06-22 18:04:09 +0530 | [diff] [blame] | 723 | len = min_t(size_t, count, SZ_512 - 1); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 724 | if (copy_from_user(buf, user_buff, len)) |
| 725 | goto end; |
| 726 | |
| 727 | buf[len] = '\0'; |
| 728 | |
| 729 | if (sscanf(buf, "%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x", |
| 730 | &c_state->hdr_meta.hdr_supported, |
| 731 | &c_state->hdr_meta.hdr_state, |
| 732 | &c_state->hdr_meta.eotf, |
| 733 | &c_state->hdr_meta.display_primaries_x[0], |
| 734 | &c_state->hdr_meta.display_primaries_x[1], |
| 735 | &c_state->hdr_meta.display_primaries_x[2], |
| 736 | &c_state->hdr_meta.display_primaries_y[0], |
| 737 | &c_state->hdr_meta.display_primaries_y[1], |
| 738 | &c_state->hdr_meta.display_primaries_y[2], |
| 739 | &c_state->hdr_meta.white_point_x, |
| 740 | &c_state->hdr_meta.white_point_y, |
| 741 | &c_state->hdr_meta.max_luminance, |
| 742 | &c_state->hdr_meta.min_luminance, |
| 743 | &c_state->hdr_meta.max_content_light_level, |
| 744 | &c_state->hdr_meta.max_average_light_level) != 15) { |
| 745 | pr_err("invalid input\n"); |
| 746 | len = -EINVAL; |
| 747 | } |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 748 | |
| 749 | debug->panel->setup_hdr(debug->panel, &c_state->hdr_meta); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 750 | end: |
| 751 | return len; |
| 752 | } |
| 753 | |
| 754 | static ssize_t dp_debug_read_hdr(struct file *file, |
| 755 | char __user *user_buff, size_t count, loff_t *ppos) |
| 756 | { |
| 757 | struct dp_debug_private *debug = file->private_data; |
| 758 | char *buf; |
| 759 | u32 len = 0, i; |
| 760 | u32 max_size = SZ_4K; |
| 761 | int rc = 0; |
| 762 | struct drm_connector *connector; |
| 763 | struct sde_connector *c_conn; |
| 764 | struct sde_connector_state *c_state; |
| 765 | struct drm_msm_ext_hdr_metadata *hdr; |
| 766 | |
| 767 | if (!debug) { |
| 768 | pr_err("invalid data\n"); |
| 769 | rc = -ENODEV; |
| 770 | goto error; |
| 771 | } |
| 772 | |
| 773 | connector = *debug->connector; |
| 774 | |
| 775 | if (!connector) { |
| 776 | pr_err("connector is NULL\n"); |
| 777 | rc = -EINVAL; |
| 778 | goto error; |
| 779 | } |
| 780 | |
| 781 | if (*ppos) |
| 782 | goto error; |
| 783 | |
| 784 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
Aravind Venkateswaran | c140b8f | 2018-07-19 14:53:41 -0700 | [diff] [blame] | 785 | if (ZERO_OR_NULL_PTR(buf)) { |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 786 | rc = -ENOMEM; |
| 787 | goto error; |
| 788 | } |
| 789 | |
| 790 | c_conn = to_sde_connector(connector); |
| 791 | c_state = to_sde_connector_state(connector->state); |
| 792 | |
| 793 | hdr = &c_state->hdr_meta; |
| 794 | |
| 795 | rc = snprintf(buf + len, max_size, |
| 796 | "============SINK HDR PARAMETERS===========\n"); |
| 797 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 798 | goto error; |
| 799 | |
| 800 | rc = snprintf(buf + len, max_size, "eotf = %d\n", |
| 801 | connector->hdr_eotf); |
| 802 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 803 | goto error; |
| 804 | |
| 805 | rc = snprintf(buf + len, max_size, "type_one = %d\n", |
| 806 | connector->hdr_metadata_type_one); |
| 807 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 808 | goto error; |
| 809 | |
| 810 | rc = snprintf(buf + len, max_size, "max_luminance = %d\n", |
| 811 | connector->hdr_max_luminance); |
| 812 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 813 | goto error; |
| 814 | |
| 815 | rc = snprintf(buf + len, max_size, "avg_luminance = %d\n", |
| 816 | connector->hdr_avg_luminance); |
| 817 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 818 | goto error; |
| 819 | |
| 820 | rc = snprintf(buf + len, max_size, "min_luminance = %d\n", |
| 821 | connector->hdr_min_luminance); |
| 822 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 823 | goto error; |
| 824 | |
| 825 | rc = snprintf(buf + len, max_size, |
| 826 | "============VIDEO HDR PARAMETERS===========\n"); |
| 827 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 828 | goto error; |
| 829 | |
| 830 | rc = snprintf(buf + len, max_size, "hdr_state = %d\n", hdr->hdr_state); |
| 831 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 832 | goto error; |
| 833 | |
| 834 | rc = snprintf(buf + len, max_size, "hdr_supported = %d\n", |
| 835 | hdr->hdr_supported); |
| 836 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 837 | goto error; |
| 838 | |
| 839 | rc = snprintf(buf + len, max_size, "eotf = %d\n", hdr->eotf); |
| 840 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 841 | goto error; |
| 842 | |
| 843 | rc = snprintf(buf + len, max_size, "white_point_x = %d\n", |
| 844 | hdr->white_point_x); |
| 845 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 846 | goto error; |
| 847 | |
| 848 | rc = snprintf(buf + len, max_size, "white_point_y = %d\n", |
| 849 | hdr->white_point_y); |
| 850 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 851 | goto error; |
| 852 | |
| 853 | rc = snprintf(buf + len, max_size, "max_luminance = %d\n", |
| 854 | hdr->max_luminance); |
| 855 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 856 | goto error; |
| 857 | |
| 858 | rc = snprintf(buf + len, max_size, "min_luminance = %d\n", |
| 859 | hdr->min_luminance); |
| 860 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 861 | goto error; |
| 862 | |
| 863 | rc = snprintf(buf + len, max_size, "max_content_light_level = %d\n", |
| 864 | hdr->max_content_light_level); |
| 865 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 866 | goto error; |
| 867 | |
| 868 | rc = snprintf(buf + len, max_size, "min_content_light_level = %d\n", |
| 869 | hdr->max_average_light_level); |
| 870 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 871 | goto error; |
| 872 | |
| 873 | for (i = 0; i < HDR_PRIMARIES_COUNT; i++) { |
| 874 | rc = snprintf(buf + len, max_size, "primaries_x[%d] = %d\n", |
| 875 | i, hdr->display_primaries_x[i]); |
| 876 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 877 | goto error; |
| 878 | |
| 879 | rc = snprintf(buf + len, max_size, "primaries_y[%d] = %d\n", |
| 880 | i, hdr->display_primaries_y[i]); |
| 881 | if (dp_debug_check_buffer_overflow(rc, &max_size, &len)) |
| 882 | goto error; |
| 883 | } |
| 884 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 885 | len = min_t(size_t, count, len); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 886 | if (copy_to_user(user_buff, buf, len)) { |
| 887 | kfree(buf); |
| 888 | rc = -EFAULT; |
| 889 | goto error; |
| 890 | } |
| 891 | |
| 892 | *ppos += len; |
| 893 | kfree(buf); |
| 894 | |
| 895 | return len; |
| 896 | error: |
| 897 | return rc; |
| 898 | } |
| 899 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 900 | static ssize_t dp_debug_write_sim(struct file *file, |
| 901 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 902 | { |
| 903 | struct dp_debug_private *debug = file->private_data; |
| 904 | char buf[SZ_8]; |
| 905 | size_t len = 0; |
| 906 | int sim; |
| 907 | |
| 908 | if (!debug) |
| 909 | return -ENODEV; |
| 910 | |
| 911 | if (*ppos) |
| 912 | return 0; |
| 913 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 914 | mutex_lock(&debug->lock); |
| 915 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 916 | /* Leave room for termination char */ |
| 917 | len = min_t(size_t, count, SZ_8 - 1); |
| 918 | if (copy_from_user(buf, user_buff, len)) |
| 919 | goto end; |
| 920 | |
| 921 | buf[len] = '\0'; |
| 922 | |
| 923 | if (kstrtoint(buf, 10, &sim) != 0) |
| 924 | goto end; |
| 925 | |
| 926 | if (sim) { |
| 927 | if (dp_debug_get_edid_buf(debug)) |
| 928 | goto end; |
| 929 | |
| 930 | if (dp_debug_get_dpcd_buf(debug)) |
| 931 | goto error; |
| 932 | } else { |
| 933 | if (debug->edid) { |
| 934 | devm_kfree(debug->dev, debug->edid); |
| 935 | debug->edid = NULL; |
| 936 | } |
| 937 | |
| 938 | if (debug->dpcd) { |
| 939 | devm_kfree(debug->dev, debug->dpcd); |
| 940 | debug->dpcd = NULL; |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | debug->dp_debug.sim_mode = !!sim; |
| 945 | |
| 946 | debug->aux->set_sim_mode(debug->aux, debug->dp_debug.sim_mode, |
| 947 | debug->edid, debug->dpcd); |
| 948 | end: |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 949 | mutex_unlock(&debug->lock); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 950 | return len; |
| 951 | error: |
| 952 | devm_kfree(debug->dev, debug->edid); |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 953 | mutex_unlock(&debug->lock); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 954 | return len; |
| 955 | } |
| 956 | |
| 957 | static ssize_t dp_debug_write_attention(struct file *file, |
| 958 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 959 | { |
| 960 | struct dp_debug_private *debug = file->private_data; |
| 961 | char buf[SZ_8]; |
| 962 | size_t len = 0; |
| 963 | int vdo; |
| 964 | |
| 965 | if (!debug) |
| 966 | return -ENODEV; |
| 967 | |
| 968 | if (*ppos) |
| 969 | return 0; |
| 970 | |
| 971 | /* Leave room for termination char */ |
| 972 | len = min_t(size_t, count, SZ_8 - 1); |
| 973 | if (copy_from_user(buf, user_buff, len)) |
| 974 | goto end; |
| 975 | |
| 976 | buf[len] = '\0'; |
| 977 | |
| 978 | if (kstrtoint(buf, 10, &vdo) != 0) |
| 979 | goto end; |
| 980 | |
| 981 | debug->vdo = vdo; |
| 982 | |
| 983 | schedule_work(&debug->sim_work); |
| 984 | end: |
| 985 | return len; |
| 986 | } |
| 987 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 988 | static ssize_t dp_debug_write_dump(struct file *file, |
| 989 | const char __user *user_buff, size_t count, loff_t *ppos) |
| 990 | { |
| 991 | struct dp_debug_private *debug = file->private_data; |
| 992 | char buf[SZ_32]; |
| 993 | size_t len = 0; |
| 994 | |
| 995 | if (!debug) |
| 996 | return -ENODEV; |
| 997 | |
| 998 | if (*ppos) |
| 999 | return 0; |
| 1000 | |
| 1001 | /* Leave room for termination char */ |
| 1002 | len = min_t(size_t, count, SZ_32 - 1); |
| 1003 | if (copy_from_user(buf, user_buff, len)) |
| 1004 | goto end; |
| 1005 | |
| 1006 | buf[len] = '\0'; |
| 1007 | |
| 1008 | if (sscanf(buf, "%31s", debug->reg_dump) != 1) |
| 1009 | goto end; |
| 1010 | |
| 1011 | /* qfprom register dump not supported */ |
| 1012 | if (!strcmp(debug->reg_dump, "qfprom_physical")) |
| 1013 | strlcpy(debug->reg_dump, "clear", sizeof(debug->reg_dump)); |
| 1014 | end: |
| 1015 | return len; |
| 1016 | } |
| 1017 | |
| 1018 | static ssize_t dp_debug_read_dump(struct file *file, |
| 1019 | char __user *user_buff, size_t count, loff_t *ppos) |
| 1020 | { |
| 1021 | int rc = 0; |
| 1022 | struct dp_debug_private *debug = file->private_data; |
| 1023 | u8 *buf = NULL; |
| 1024 | u32 len = 0; |
| 1025 | char prefix[SZ_32]; |
| 1026 | |
| 1027 | if (!debug) |
| 1028 | return -ENODEV; |
| 1029 | |
| 1030 | if (*ppos) |
| 1031 | return 0; |
| 1032 | |
| 1033 | if (!debug->usbpd->hpd_high || !strlen(debug->reg_dump)) |
| 1034 | goto end; |
| 1035 | |
| 1036 | rc = debug->catalog->get_reg_dump(debug->catalog, |
| 1037 | debug->reg_dump, &buf, &len); |
| 1038 | if (rc) |
| 1039 | goto end; |
| 1040 | |
| 1041 | snprintf(prefix, sizeof(prefix), "%s: ", debug->reg_dump); |
| 1042 | print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_NONE, |
| 1043 | 16, 4, buf, len, false); |
| 1044 | |
Sankeerth Billakanti | df847fe | 2019-07-11 11:49:48 +0530 | [diff] [blame] | 1045 | len = min_t(size_t, count, len); |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1046 | if (copy_to_user(user_buff, buf, len)) |
| 1047 | return -EFAULT; |
| 1048 | |
| 1049 | *ppos += len; |
| 1050 | end: |
| 1051 | return len; |
| 1052 | } |
| 1053 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1054 | static const struct file_operations dp_debug_fops = { |
| 1055 | .open = simple_open, |
| 1056 | .read = dp_debug_read_info, |
| 1057 | }; |
| 1058 | |
| 1059 | static const struct file_operations edid_modes_fops = { |
| 1060 | .open = simple_open, |
| 1061 | .read = dp_debug_read_edid_modes, |
| 1062 | .write = dp_debug_write_edid_modes, |
| 1063 | }; |
| 1064 | |
| 1065 | static const struct file_operations hpd_fops = { |
| 1066 | .open = simple_open, |
| 1067 | .write = dp_debug_write_hpd, |
| 1068 | }; |
| 1069 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1070 | static const struct file_operations edid_fops = { |
| 1071 | .open = simple_open, |
| 1072 | .write = dp_debug_write_edid, |
| 1073 | }; |
| 1074 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1075 | static const struct file_operations dpcd_fops = { |
| 1076 | .open = simple_open, |
| 1077 | .write = dp_debug_write_dpcd, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1078 | .read = dp_debug_read_dpcd, |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1079 | }; |
| 1080 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1081 | static const struct file_operations connected_fops = { |
| 1082 | .open = simple_open, |
| 1083 | .read = dp_debug_read_connected, |
| 1084 | }; |
| 1085 | |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1086 | static const struct file_operations bw_code_fops = { |
| 1087 | .open = simple_open, |
| 1088 | .read = dp_debug_bw_code_read, |
| 1089 | .write = dp_debug_bw_code_write, |
| 1090 | }; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1091 | static const struct file_operations exe_mode_fops = { |
| 1092 | .open = simple_open, |
| 1093 | .write = dp_debug_write_exe_mode, |
| 1094 | }; |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1095 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 1096 | static const struct file_operations tpg_fops = { |
| 1097 | .open = simple_open, |
| 1098 | .read = dp_debug_tpg_read, |
| 1099 | .write = dp_debug_tpg_write, |
| 1100 | }; |
| 1101 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1102 | static const struct file_operations hdr_fops = { |
| 1103 | .open = simple_open, |
| 1104 | .write = dp_debug_write_hdr, |
| 1105 | .read = dp_debug_read_hdr, |
| 1106 | }; |
| 1107 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1108 | static const struct file_operations sim_fops = { |
| 1109 | .open = simple_open, |
| 1110 | .write = dp_debug_write_sim, |
| 1111 | }; |
| 1112 | |
| 1113 | static const struct file_operations attention_fops = { |
| 1114 | .open = simple_open, |
| 1115 | .write = dp_debug_write_attention, |
| 1116 | }; |
| 1117 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1118 | static const struct file_operations dump_fops = { |
| 1119 | .open = simple_open, |
| 1120 | .write = dp_debug_write_dump, |
| 1121 | .read = dp_debug_read_dump, |
| 1122 | }; |
| 1123 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1124 | static int dp_debug_init(struct dp_debug *dp_debug) |
| 1125 | { |
| 1126 | int rc = 0; |
| 1127 | struct dp_debug_private *debug = container_of(dp_debug, |
| 1128 | struct dp_debug_private, dp_debug); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1129 | struct dentry *dir, *file; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1130 | |
| 1131 | dir = debugfs_create_dir(DEBUG_NAME, NULL); |
| 1132 | if (IS_ERR_OR_NULL(dir)) { |
Padmanabhan Komanduru | e503414 | 2017-11-13 16:50:19 +0530 | [diff] [blame] | 1133 | if (!dir) |
| 1134 | rc = -EINVAL; |
| 1135 | else |
| 1136 | rc = PTR_ERR(dir); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1137 | pr_err("[%s] debugfs create dir failed, rc = %d\n", |
| 1138 | DEBUG_NAME, rc); |
| 1139 | goto error; |
| 1140 | } |
| 1141 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1142 | debug->root = dir; |
| 1143 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1144 | file = debugfs_create_file("dp_debug", 0444, dir, |
| 1145 | debug, &dp_debug_fops); |
| 1146 | if (IS_ERR_OR_NULL(file)) { |
| 1147 | rc = PTR_ERR(file); |
| 1148 | pr_err("[%s] debugfs create file failed, rc=%d\n", |
| 1149 | DEBUG_NAME, rc); |
| 1150 | goto error_remove_dir; |
| 1151 | } |
| 1152 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1153 | file = debugfs_create_file("edid_modes", 0644, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1154 | debug, &edid_modes_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1155 | if (IS_ERR_OR_NULL(file)) { |
| 1156 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1157 | pr_err("[%s] debugfs create edid_modes failed, rc=%d\n", |
| 1158 | DEBUG_NAME, rc); |
| 1159 | goto error_remove_dir; |
| 1160 | } |
| 1161 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1162 | file = debugfs_create_file("hpd", 0644, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1163 | debug, &hpd_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1164 | if (IS_ERR_OR_NULL(file)) { |
| 1165 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1166 | pr_err("[%s] debugfs hpd failed, rc=%d\n", |
| 1167 | DEBUG_NAME, rc); |
| 1168 | goto error_remove_dir; |
| 1169 | } |
| 1170 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1171 | file = debugfs_create_file("connected", 0444, dir, |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1172 | debug, &connected_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1173 | if (IS_ERR_OR_NULL(file)) { |
| 1174 | rc = PTR_ERR(file); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1175 | pr_err("[%s] debugfs connected failed, rc=%d\n", |
| 1176 | DEBUG_NAME, rc); |
| 1177 | goto error_remove_dir; |
| 1178 | } |
| 1179 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1180 | file = debugfs_create_file("max_bw_code", 0644, dir, |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1181 | debug, &bw_code_fops); |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1182 | if (IS_ERR_OR_NULL(file)) { |
| 1183 | rc = PTR_ERR(file); |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1184 | pr_err("[%s] debugfs max_bw_code failed, rc=%d\n", |
| 1185 | DEBUG_NAME, rc); |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1186 | } |
| 1187 | |
| 1188 | file = debugfs_create_file("exe_mode", 0644, dir, |
| 1189 | debug, &exe_mode_fops); |
| 1190 | if (IS_ERR_OR_NULL(file)) { |
| 1191 | rc = PTR_ERR(file); |
| 1192 | pr_err("[%s] debugfs register failed, rc=%d\n", |
| 1193 | DEBUG_NAME, rc); |
Padmanabhan Komanduru | 87222e7 | 2017-09-21 18:27:25 +0530 | [diff] [blame] | 1194 | } |
| 1195 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1196 | file = debugfs_create_file("edid", 0644, dir, |
| 1197 | debug, &edid_fops); |
| 1198 | if (IS_ERR_OR_NULL(file)) { |
| 1199 | rc = PTR_ERR(file); |
| 1200 | pr_err("[%s] debugfs edid failed, rc=%d\n", |
| 1201 | DEBUG_NAME, rc); |
| 1202 | goto error_remove_dir; |
| 1203 | } |
| 1204 | |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1205 | file = debugfs_create_file("dpcd", 0644, dir, |
| 1206 | debug, &dpcd_fops); |
| 1207 | if (IS_ERR_OR_NULL(file)) { |
| 1208 | rc = PTR_ERR(file); |
| 1209 | pr_err("[%s] debugfs dpcd failed, rc=%d\n", |
| 1210 | DEBUG_NAME, rc); |
| 1211 | goto error_remove_dir; |
| 1212 | } |
| 1213 | |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 1214 | file = debugfs_create_file("tpg_ctrl", 0644, dir, |
| 1215 | debug, &tpg_fops); |
| 1216 | if (IS_ERR_OR_NULL(file)) { |
| 1217 | rc = PTR_ERR(file); |
| 1218 | pr_err("[%s] debugfs tpg failed, rc=%d\n", |
| 1219 | DEBUG_NAME, rc); |
| 1220 | goto error_remove_dir; |
| 1221 | } |
| 1222 | |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1223 | file = debugfs_create_file("hdr", 0644, dir, |
| 1224 | debug, &hdr_fops); |
| 1225 | |
| 1226 | if (IS_ERR_OR_NULL(file)) { |
| 1227 | rc = PTR_ERR(file); |
| 1228 | pr_err("[%s] debugfs hdr failed, rc=%d\n", |
| 1229 | DEBUG_NAME, rc); |
| 1230 | goto error_remove_dir; |
| 1231 | } |
| 1232 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1233 | file = debugfs_create_file("sim", 0644, dir, |
| 1234 | debug, &sim_fops); |
| 1235 | |
| 1236 | if (IS_ERR_OR_NULL(file)) { |
| 1237 | rc = PTR_ERR(file); |
| 1238 | pr_err("[%s] debugfs sim failed, rc=%d\n", |
| 1239 | DEBUG_NAME, rc); |
| 1240 | goto error_remove_dir; |
| 1241 | } |
| 1242 | |
| 1243 | file = debugfs_create_file("attention", 0644, dir, |
| 1244 | debug, &attention_fops); |
| 1245 | |
| 1246 | if (IS_ERR_OR_NULL(file)) { |
| 1247 | rc = PTR_ERR(file); |
| 1248 | pr_err("[%s] debugfs attention failed, rc=%d\n", |
| 1249 | DEBUG_NAME, rc); |
| 1250 | goto error_remove_dir; |
| 1251 | } |
| 1252 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1253 | file = debugfs_create_file("dump", 0644, dir, |
| 1254 | debug, &dump_fops); |
| 1255 | |
| 1256 | if (IS_ERR_OR_NULL(file)) { |
| 1257 | rc = PTR_ERR(file); |
| 1258 | pr_err("[%s] debugfs dump failed, rc=%d\n", |
| 1259 | DEBUG_NAME, rc); |
| 1260 | goto error_remove_dir; |
| 1261 | } |
| 1262 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1263 | return 0; |
| 1264 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1265 | error_remove_dir: |
Padmanabhan Komanduru | e503414 | 2017-11-13 16:50:19 +0530 | [diff] [blame] | 1266 | if (!file) |
| 1267 | rc = -EINVAL; |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1268 | debugfs_remove_recursive(dir); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1269 | error: |
| 1270 | return rc; |
| 1271 | } |
| 1272 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1273 | static void dp_debug_sim_work(struct work_struct *work) |
| 1274 | { |
| 1275 | struct dp_debug_private *debug = |
| 1276 | container_of(work, typeof(*debug), sim_work); |
| 1277 | |
| 1278 | debug->usbpd->simulate_attention(debug->usbpd, debug->vdo); |
| 1279 | } |
| 1280 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1281 | struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel, |
| 1282 | struct dp_usbpd *usbpd, struct dp_link *link, |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1283 | struct dp_aux *aux, struct drm_connector **connector, |
| 1284 | struct dp_catalog *catalog) |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1285 | { |
| 1286 | int rc = 0; |
| 1287 | struct dp_debug_private *debug; |
| 1288 | struct dp_debug *dp_debug; |
| 1289 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1290 | if (!dev || !panel || !usbpd || !link || !catalog) { |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1291 | pr_err("invalid input\n"); |
| 1292 | rc = -EINVAL; |
| 1293 | goto error; |
| 1294 | } |
| 1295 | |
| 1296 | debug = devm_kzalloc(dev, sizeof(*debug), GFP_KERNEL); |
| 1297 | if (!debug) { |
| 1298 | rc = -ENOMEM; |
| 1299 | goto error; |
| 1300 | } |
| 1301 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1302 | INIT_WORK(&debug->sim_work, dp_debug_sim_work); |
Ajay Singh Parmar | d937eb2 | 2017-10-17 19:58:19 -0700 | [diff] [blame] | 1303 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1304 | debug->dp_debug.debug_en = false; |
| 1305 | debug->usbpd = usbpd; |
| 1306 | debug->link = link; |
| 1307 | debug->panel = panel; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1308 | debug->aux = aux; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1309 | debug->dev = dev; |
| 1310 | debug->connector = connector; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 1311 | debug->catalog = catalog; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1312 | |
| 1313 | dp_debug = &debug->dp_debug; |
| 1314 | dp_debug->vdisplay = 0; |
| 1315 | dp_debug->hdisplay = 0; |
| 1316 | dp_debug->vrefresh = 0; |
| 1317 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 1318 | mutex_init(&debug->lock); |
| 1319 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1320 | rc = dp_debug_init(dp_debug); |
| 1321 | if (rc) { |
| 1322 | devm_kfree(dev, debug); |
| 1323 | goto error; |
| 1324 | } |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1325 | |
| 1326 | return dp_debug; |
| 1327 | error: |
| 1328 | return ERR_PTR(rc); |
| 1329 | } |
| 1330 | |
| 1331 | static int dp_debug_deinit(struct dp_debug *dp_debug) |
| 1332 | { |
| 1333 | struct dp_debug_private *debug; |
| 1334 | |
| 1335 | if (!dp_debug) |
| 1336 | return -EINVAL; |
| 1337 | |
| 1338 | debug = container_of(dp_debug, struct dp_debug_private, dp_debug); |
| 1339 | |
Ajay Singh Parmar | 4c92d39 | 2017-08-30 22:51:10 -0700 | [diff] [blame] | 1340 | debugfs_remove_recursive(debug->root); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1341 | |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | void dp_debug_put(struct dp_debug *dp_debug) |
| 1346 | { |
| 1347 | struct dp_debug_private *debug; |
| 1348 | |
| 1349 | if (!dp_debug) |
| 1350 | return; |
| 1351 | |
| 1352 | debug = container_of(dp_debug, struct dp_debug_private, dp_debug); |
| 1353 | |
| 1354 | dp_debug_deinit(dp_debug); |
| 1355 | |
Ajay Singh Parmar | 668ca74 | 2019-01-16 21:50:19 -0800 | [diff] [blame] | 1356 | mutex_destroy(&debug->lock); |
| 1357 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1358 | if (debug->edid) |
| 1359 | devm_kfree(debug->dev, debug->edid); |
| 1360 | |
| 1361 | if (debug->dpcd) |
| 1362 | devm_kfree(debug->dev, debug->dpcd); |
| 1363 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1364 | devm_kfree(debug->dev, debug); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1365 | } |