drivers/gpu/drm/gma500/mdfld_dsi_pkg

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
wait_for_gen_fifo_empty
wait_for_all_fifos_empty
wait_for_lp_fifos_empty
wait_for_hs_fifos_empty
handle_dsi_error
dsi_error_handler
send_short_pkg
send_long_pkg
send_pkg_prepare
send_pkg_done
send_pkg
mdfld_dsi_send_mcs_long
mdfld_dsi_send_mcs_short
mdfld_dsi_send_gen_short
mdfld_dsi_send_gen_long
__read_panel_data
mdfld_dsi_read_mcs
mdfld_dsi_pkg_sender_init
mdfld_dsi_pkg_sender_destroy
   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  * Jackie Li<yaodong.li@intel.com>
  25  */
  26 
  27 #include <linux/delay.h>
  28 #include <linux/freezer.h>
  29 
  30 #include <video/mipi_display.h>
  31 
  32 #include "mdfld_dsi_dpi.h"
  33 #include "mdfld_dsi_output.h"
  34 #include "mdfld_dsi_pkg_sender.h"
  35 
  36 #define MDFLD_DSI_READ_MAX_COUNT                5000
  37 
  38 enum {
  39         MDFLD_DSI_PANEL_MODE_SLEEP = 0x1,
  40 };
  41 
  42 enum {
  43         MDFLD_DSI_PKG_SENDER_FREE = 0x0,
  44         MDFLD_DSI_PKG_SENDER_BUSY = 0x1,
  45 };
  46 
  47 static const char *const dsi_errors[] = {
  48         "RX SOT Error",
  49         "RX SOT Sync Error",
  50         "RX EOT Sync Error",
  51         "RX Escape Mode Entry Error",
  52         "RX LP TX Sync Error",
  53         "RX HS Receive Timeout Error",
  54         "RX False Control Error",
  55         "RX ECC Single Bit Error",
  56         "RX ECC Multibit Error",
  57         "RX Checksum Error",
  58         "RX DSI Data Type Not Recognised",
  59         "RX DSI VC ID Invalid",
  60         "TX False Control Error",
  61         "TX ECC Single Bit Error",
  62         "TX ECC Multibit Error",
  63         "TX Checksum Error",
  64         "TX DSI Data Type Not Recognised",
  65         "TX DSI VC ID invalid",
  66         "High Contention",
  67         "Low contention",
  68         "DPI FIFO Under run",
  69         "HS TX Timeout",
  70         "LP RX Timeout",
  71         "Turn Around ACK Timeout",
  72         "ACK With No Error",
  73         "RX Invalid TX Length",
  74         "RX Prot Violation",
  75         "HS Generic Write FIFO Full",
  76         "LP Generic Write FIFO Full",
  77         "Generic Read Data Avail",
  78         "Special Packet Sent",
  79         "Tearing Effect",
  80 };
  81 
  82 static inline int wait_for_gen_fifo_empty(struct mdfld_dsi_pkg_sender *sender,
  83                                                 u32 mask)
  84 {
  85         struct drm_device *dev = sender->dev;
  86         u32 gen_fifo_stat_reg = sender->mipi_gen_fifo_stat_reg;
  87         int retry = 0xffff;
  88 
  89         while (retry--) {
  90                 if ((mask & REG_READ(gen_fifo_stat_reg)) == mask)
  91                         return 0;
  92                 udelay(100);
  93         }
  94         DRM_ERROR("fifo is NOT empty 0x%08x\n", REG_READ(gen_fifo_stat_reg));
  95         return -EIO;
  96 }
  97 
  98 static int wait_for_all_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
  99 {
 100         return wait_for_gen_fifo_empty(sender, (BIT(2) | BIT(10) | BIT(18) |
 101                                                 BIT(26) | BIT(27) | BIT(28)));
 102 }
 103 
 104 static int wait_for_lp_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
 105 {
 106         return wait_for_gen_fifo_empty(sender, (BIT(10) | BIT(26)));
 107 }
 108 
 109 static int wait_for_hs_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
 110 {
 111         return wait_for_gen_fifo_empty(sender, (BIT(2) | BIT(18)));
 112 }
 113 
 114 static int handle_dsi_error(struct mdfld_dsi_pkg_sender *sender, u32 mask)
 115 {
 116         u32 intr_stat_reg = sender->mipi_intr_stat_reg;
 117         struct drm_device *dev = sender->dev;
 118 
 119         dev_dbg(sender->dev->dev, "Handling error 0x%08x\n", mask);
 120 
 121         switch (mask) {
 122         case BIT(0):
 123         case BIT(1):
 124         case BIT(2):
 125         case BIT(3):
 126         case BIT(4):
 127         case BIT(5):
 128         case BIT(6):
 129         case BIT(7):
 130         case BIT(8):
 131         case BIT(9):
 132         case BIT(10):
 133         case BIT(11):
 134         case BIT(12):
 135         case BIT(13):
 136                 dev_dbg(sender->dev->dev, "No Action required\n");
 137                 break;
 138         case BIT(14):
 139                 /*wait for all fifo empty*/
 140                 /*wait_for_all_fifos_empty(sender)*/
 141                 break;
 142         case BIT(15):
 143                 dev_dbg(sender->dev->dev, "No Action required\n");
 144                 break;
 145         case BIT(16):
 146                 break;
 147         case BIT(17):
 148                 break;
 149         case BIT(18):
 150         case BIT(19):
 151                 dev_dbg(sender->dev->dev, "High/Low contention detected\n");
 152                 /*wait for contention recovery time*/
 153                 /*mdelay(10);*/
 154                 /*wait for all fifo empty*/
 155                 if (0)
 156                         wait_for_all_fifos_empty(sender);
 157                 break;
 158         case BIT(20):
 159                 dev_dbg(sender->dev->dev, "No Action required\n");
 160                 break;
 161         case BIT(21):
 162                 /*wait for all fifo empty*/
 163                 /*wait_for_all_fifos_empty(sender);*/
 164                 break;
 165         case BIT(22):
 166                 break;
 167         case BIT(23):
 168         case BIT(24):
 169         case BIT(25):
 170         case BIT(26):
 171         case BIT(27):
 172                 dev_dbg(sender->dev->dev, "HS Gen fifo full\n");
 173                 REG_WRITE(intr_stat_reg, mask);
 174                 wait_for_hs_fifos_empty(sender);
 175                 break;
 176         case BIT(28):
 177                 dev_dbg(sender->dev->dev, "LP Gen fifo full\n");
 178                 REG_WRITE(intr_stat_reg, mask);
 179                 wait_for_lp_fifos_empty(sender);
 180                 break;
 181         case BIT(29):
 182         case BIT(30):
 183         case BIT(31):
 184                 dev_dbg(sender->dev->dev, "No Action required\n");
 185                 break;
 186         }
 187 
 188         if (mask & REG_READ(intr_stat_reg))
 189                 dev_dbg(sender->dev->dev,
 190                                 "Cannot clean interrupt 0x%08x\n", mask);
 191         return 0;
 192 }
 193 
 194 static int dsi_error_handler(struct mdfld_dsi_pkg_sender *sender)
 195 {
 196         struct drm_device *dev = sender->dev;
 197         u32 intr_stat_reg = sender->mipi_intr_stat_reg;
 198         u32 mask;
 199         u32 intr_stat;
 200         int i;
 201         int err = 0;
 202 
 203         intr_stat = REG_READ(intr_stat_reg);
 204 
 205         for (i = 0; i < 32; i++) {
 206                 mask = (0x00000001UL) << i;
 207                 if (intr_stat & mask) {
 208                         dev_dbg(sender->dev->dev, "[DSI]: %s\n", dsi_errors[i]);
 209                         err = handle_dsi_error(sender, mask);
 210                         if (err)
 211                                 DRM_ERROR("Cannot handle error\n");
 212                 }
 213         }
 214         return err;
 215 }
 216 
 217 static int send_short_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 218                         u8 cmd, u8 param, bool hs)
 219 {
 220         struct drm_device *dev = sender->dev;
 221         u32 ctrl_reg;
 222         u32 val;
 223         u8 virtual_channel = 0;
 224 
 225         if (hs) {
 226                 ctrl_reg = sender->mipi_hs_gen_ctrl_reg;
 227 
 228                 /* FIXME: wait_for_hs_fifos_empty(sender); */
 229         } else {
 230                 ctrl_reg = sender->mipi_lp_gen_ctrl_reg;
 231 
 232                 /* FIXME: wait_for_lp_fifos_empty(sender); */
 233         }
 234 
 235         val = FLD_VAL(param, 23, 16) | FLD_VAL(cmd, 15, 8) |
 236                 FLD_VAL(virtual_channel, 7, 6) | FLD_VAL(data_type, 5, 0);
 237 
 238         REG_WRITE(ctrl_reg, val);
 239 
 240         return 0;
 241 }
 242 
 243 static int send_long_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 244                         u8 *data, int len, bool hs)
 245 {
 246         struct drm_device *dev = sender->dev;
 247         u32 ctrl_reg;
 248         u32 data_reg;
 249         u32 val;
 250         u8 *p;
 251         u8 b1, b2, b3, b4;
 252         u8 virtual_channel = 0;
 253         int i;
 254 
 255         if (hs) {
 256                 ctrl_reg = sender->mipi_hs_gen_ctrl_reg;
 257                 data_reg = sender->mipi_hs_gen_data_reg;
 258 
 259                 /* FIXME: wait_for_hs_fifos_empty(sender); */
 260         } else {
 261                 ctrl_reg = sender->mipi_lp_gen_ctrl_reg;
 262                 data_reg = sender->mipi_lp_gen_data_reg;
 263 
 264                 /* FIXME: wait_for_lp_fifos_empty(sender); */
 265         }
 266 
 267         p = data;
 268         for (i = 0; i < len / 4; i++) {
 269                 b1 = *p++;
 270                 b2 = *p++;
 271                 b3 = *p++;
 272                 b4 = *p++;
 273 
 274                 REG_WRITE(data_reg, b4 << 24 | b3 << 16 | b2 << 8 | b1);
 275         }
 276 
 277         i = len % 4;
 278         if (i) {
 279                 b1 = 0; b2 = 0; b3 = 0;
 280 
 281                 switch (i) {
 282                 case 3:
 283                         b1 = *p++;
 284                         b2 = *p++;
 285                         b3 = *p++;
 286                         break;
 287                 case 2:
 288                         b1 = *p++;
 289                         b2 = *p++;
 290                         break;
 291                 case 1:
 292                         b1 = *p++;
 293                         break;
 294                 }
 295 
 296                 REG_WRITE(data_reg, b3 << 16 | b2 << 8 | b1);
 297         }
 298 
 299         val = FLD_VAL(len, 23, 8) | FLD_VAL(virtual_channel, 7, 6) |
 300                 FLD_VAL(data_type, 5, 0);
 301 
 302         REG_WRITE(ctrl_reg, val);
 303 
 304         return 0;
 305 }
 306 
 307 static int send_pkg_prepare(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 308                         u8 *data, u16 len)
 309 {
 310         u8 cmd;
 311 
 312         switch (data_type) {
 313         case MIPI_DSI_DCS_SHORT_WRITE:
 314         case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
 315         case MIPI_DSI_DCS_LONG_WRITE:
 316                 cmd = *data;
 317                 break;
 318         default:
 319                 return 0;
 320         }
 321 
 322         /*this prevents other package sending while doing msleep*/
 323         sender->status = MDFLD_DSI_PKG_SENDER_BUSY;
 324 
 325         /*wait for 120 milliseconds in case exit_sleep_mode just be sent*/
 326         if (unlikely(cmd == MIPI_DCS_ENTER_SLEEP_MODE)) {
 327                 /*TODO: replace it with msleep later*/
 328                 mdelay(120);
 329         }
 330 
 331         if (unlikely(cmd == MIPI_DCS_EXIT_SLEEP_MODE)) {
 332                 /*TODO: replace it with msleep later*/
 333                 mdelay(120);
 334         }
 335         return 0;
 336 }
 337 
 338 static int send_pkg_done(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 339                         u8 *data, u16 len)
 340 {
 341         u8 cmd;
 342 
 343         switch (data_type) {
 344         case MIPI_DSI_DCS_SHORT_WRITE:
 345         case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
 346         case MIPI_DSI_DCS_LONG_WRITE:
 347                 cmd = *data;
 348                 break;
 349         default:
 350                 return 0;
 351         }
 352 
 353         /*update panel status*/
 354         if (unlikely(cmd == MIPI_DCS_ENTER_SLEEP_MODE)) {
 355                 sender->panel_mode |= MDFLD_DSI_PANEL_MODE_SLEEP;
 356                 /*TODO: replace it with msleep later*/
 357                 mdelay(120);
 358         } else if (unlikely(cmd == MIPI_DCS_EXIT_SLEEP_MODE)) {
 359                 sender->panel_mode &= ~MDFLD_DSI_PANEL_MODE_SLEEP;
 360                 /*TODO: replace it with msleep later*/
 361                 mdelay(120);
 362         } else if (unlikely(cmd == MIPI_DCS_SOFT_RESET)) {
 363                 /*TODO: replace it with msleep later*/
 364                 mdelay(5);
 365         }
 366 
 367         sender->status = MDFLD_DSI_PKG_SENDER_FREE;
 368 
 369         return 0;
 370 }
 371 
 372 static int send_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 373                 u8 *data, u16 len, bool hs)
 374 {
 375         int ret;
 376 
 377         /*handle DSI error*/
 378         ret = dsi_error_handler(sender);
 379         if (ret) {
 380                 DRM_ERROR("Error handling failed\n");
 381                 return -EAGAIN;
 382         }
 383 
 384         /* send pkg */
 385         if (sender->status == MDFLD_DSI_PKG_SENDER_BUSY) {
 386                 DRM_ERROR("sender is busy\n");
 387                 return -EAGAIN;
 388         }
 389 
 390         ret = send_pkg_prepare(sender, data_type, data, len);
 391         if (ret) {
 392                 DRM_ERROR("send_pkg_prepare error\n");
 393                 return ret;
 394         }
 395 
 396         switch (data_type) {
 397         case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
 398         case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
 399         case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
 400         case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
 401         case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
 402         case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
 403         case MIPI_DSI_DCS_SHORT_WRITE:
 404         case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
 405         case MIPI_DSI_DCS_READ:
 406                 ret = send_short_pkg(sender, data_type, data[0], data[1], hs);
 407                 break;
 408         case MIPI_DSI_GENERIC_LONG_WRITE:
 409         case MIPI_DSI_DCS_LONG_WRITE:
 410                 ret = send_long_pkg(sender, data_type, data, len, hs);
 411                 break;
 412         }
 413 
 414         send_pkg_done(sender, data_type, data, len);
 415 
 416         /*FIXME: should I query complete and fifo empty here?*/
 417 
 418         return ret;
 419 }
 420 
 421 int mdfld_dsi_send_mcs_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
 422                         u32 len, bool hs)
 423 {
 424         unsigned long flags;
 425 
 426         if (!sender || !data || !len) {
 427                 DRM_ERROR("Invalid parameters\n");
 428                 return -EINVAL;
 429         }
 430 
 431         spin_lock_irqsave(&sender->lock, flags);
 432         send_pkg(sender, MIPI_DSI_DCS_LONG_WRITE, data, len, hs);
 433         spin_unlock_irqrestore(&sender->lock, flags);
 434 
 435         return 0;
 436 }
 437 
 438 int mdfld_dsi_send_mcs_short(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
 439                         u8 param, u8 param_num, bool hs)
 440 {
 441         u8 data[2];
 442         unsigned long flags;
 443         u8 data_type;
 444 
 445         if (!sender) {
 446                 DRM_ERROR("Invalid parameter\n");
 447                 return -EINVAL;
 448         }
 449 
 450         data[0] = cmd;
 451 
 452         if (param_num) {
 453                 data_type = MIPI_DSI_DCS_SHORT_WRITE_PARAM;
 454                 data[1] = param;
 455         } else {
 456                 data_type = MIPI_DSI_DCS_SHORT_WRITE;
 457                 data[1] = 0;
 458         }
 459 
 460         spin_lock_irqsave(&sender->lock, flags);
 461         send_pkg(sender, data_type, data, sizeof(data), hs);
 462         spin_unlock_irqrestore(&sender->lock, flags);
 463 
 464         return 0;
 465 }
 466 
 467 int mdfld_dsi_send_gen_short(struct mdfld_dsi_pkg_sender *sender, u8 param0,
 468                         u8 param1, u8 param_num, bool hs)
 469 {
 470         u8 data[2];
 471         unsigned long flags;
 472         u8 data_type;
 473 
 474         if (!sender || param_num > 2) {
 475                 DRM_ERROR("Invalid parameter\n");
 476                 return -EINVAL;
 477         }
 478 
 479         switch (param_num) {
 480         case 0:
 481                 data_type = MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM;
 482                 data[0] = 0;
 483                 data[1] = 0;
 484                 break;
 485         case 1:
 486                 data_type = MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM;
 487                 data[0] = param0;
 488                 data[1] = 0;
 489                 break;
 490         case 2:
 491                 data_type = MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM;
 492                 data[0] = param0;
 493                 data[1] = param1;
 494                 break;
 495         }
 496 
 497         spin_lock_irqsave(&sender->lock, flags);
 498         send_pkg(sender, data_type, data, sizeof(data), hs);
 499         spin_unlock_irqrestore(&sender->lock, flags);
 500 
 501         return 0;
 502 }
 503 
 504 int mdfld_dsi_send_gen_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
 505                         u32 len, bool hs)
 506 {
 507         unsigned long flags;
 508 
 509         if (!sender || !data || !len) {
 510                 DRM_ERROR("Invalid parameters\n");
 511                 return -EINVAL;
 512         }
 513 
 514         spin_lock_irqsave(&sender->lock, flags);
 515         send_pkg(sender, MIPI_DSI_GENERIC_LONG_WRITE, data, len, hs);
 516         spin_unlock_irqrestore(&sender->lock, flags);
 517 
 518         return 0;
 519 }
 520 
 521 static int __read_panel_data(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
 522                         u8 *data, u16 len, u32 *data_out, u16 len_out, bool hs)
 523 {
 524         unsigned long flags;
 525         struct drm_device *dev;
 526         int i;
 527         u32 gen_data_reg;
 528         int retry = MDFLD_DSI_READ_MAX_COUNT;
 529 
 530         if (!sender || !data_out || !len_out) {
 531                 DRM_ERROR("Invalid parameters\n");
 532                 return -EINVAL;
 533         }
 534 
 535         dev = sender->dev;
 536 
 537         /**
 538          * do reading.
 539          * 0) send out generic read request
 540          * 1) polling read data avail interrupt
 541          * 2) read data
 542          */
 543         spin_lock_irqsave(&sender->lock, flags);
 544 
 545         REG_WRITE(sender->mipi_intr_stat_reg, BIT(29));
 546 
 547         if ((REG_READ(sender->mipi_intr_stat_reg) & BIT(29)))
 548                 DRM_ERROR("Can NOT clean read data valid interrupt\n");
 549 
 550         /*send out read request*/
 551         send_pkg(sender, data_type, data, len, hs);
 552 
 553         /*polling read data avail interrupt*/
 554         while (retry && !(REG_READ(sender->mipi_intr_stat_reg) & BIT(29))) {
 555                 udelay(100);
 556                 retry--;
 557         }
 558 
 559         if (!retry) {
 560                 spin_unlock_irqrestore(&sender->lock, flags);
 561                 return -ETIMEDOUT;
 562         }
 563 
 564         REG_WRITE(sender->mipi_intr_stat_reg, BIT(29));
 565 
 566         /*read data*/
 567         if (hs)
 568                 gen_data_reg = sender->mipi_hs_gen_data_reg;
 569         else
 570                 gen_data_reg = sender->mipi_lp_gen_data_reg;
 571 
 572         for (i = 0; i < len_out; i++)
 573                 *(data_out + i) = REG_READ(gen_data_reg);
 574 
 575         spin_unlock_irqrestore(&sender->lock, flags);
 576 
 577         return 0;
 578 }
 579 
 580 int mdfld_dsi_read_mcs(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
 581                 u32 *data, u16 len, bool hs)
 582 {
 583         if (!sender || !data || !len) {
 584                 DRM_ERROR("Invalid parameters\n");
 585                 return -EINVAL;
 586         }
 587 
 588         return __read_panel_data(sender, MIPI_DSI_DCS_READ, &cmd, 1,
 589                                 data, len, hs);
 590 }
 591 
 592 int mdfld_dsi_pkg_sender_init(struct mdfld_dsi_connector *dsi_connector,
 593                                                                 int pipe)
 594 {
 595         struct mdfld_dsi_pkg_sender *pkg_sender;
 596         struct mdfld_dsi_config *dsi_config =
 597                                 mdfld_dsi_get_config(dsi_connector);
 598         struct drm_device *dev = dsi_config->dev;
 599         struct drm_psb_private *dev_priv = dev->dev_private;
 600         const struct psb_offset *map = &dev_priv->regmap[pipe];
 601         u32 mipi_val = 0;
 602 
 603         if (!dsi_connector) {
 604                 DRM_ERROR("Invalid parameter\n");
 605                 return -EINVAL;
 606         }
 607 
 608         pkg_sender = dsi_connector->pkg_sender;
 609 
 610         if (!pkg_sender || IS_ERR(pkg_sender)) {
 611                 pkg_sender = kzalloc(sizeof(struct mdfld_dsi_pkg_sender),
 612                                                                 GFP_KERNEL);
 613                 if (!pkg_sender) {
 614                         DRM_ERROR("Create DSI pkg sender failed\n");
 615                         return -ENOMEM;
 616                 }
 617                 dsi_connector->pkg_sender = (void *)pkg_sender;
 618         }
 619 
 620         pkg_sender->dev = dev;
 621         pkg_sender->dsi_connector = dsi_connector;
 622         pkg_sender->pipe = pipe;
 623         pkg_sender->pkg_num = 0;
 624         pkg_sender->panel_mode = 0;
 625         pkg_sender->status = MDFLD_DSI_PKG_SENDER_FREE;
 626 
 627         /*init regs*/
 628         /* FIXME: should just copy the regmap ptr ? */
 629         pkg_sender->dpll_reg = map->dpll;
 630         pkg_sender->dspcntr_reg = map->cntr;
 631         pkg_sender->pipeconf_reg = map->conf;
 632         pkg_sender->dsplinoff_reg = map->linoff;
 633         pkg_sender->dspsurf_reg = map->surf;
 634         pkg_sender->pipestat_reg = map->status;
 635 
 636         pkg_sender->mipi_intr_stat_reg = MIPI_INTR_STAT_REG(pipe);
 637         pkg_sender->mipi_lp_gen_data_reg = MIPI_LP_GEN_DATA_REG(pipe);
 638         pkg_sender->mipi_hs_gen_data_reg = MIPI_HS_GEN_DATA_REG(pipe);
 639         pkg_sender->mipi_lp_gen_ctrl_reg = MIPI_LP_GEN_CTRL_REG(pipe);
 640         pkg_sender->mipi_hs_gen_ctrl_reg = MIPI_HS_GEN_CTRL_REG(pipe);
 641         pkg_sender->mipi_gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
 642         pkg_sender->mipi_data_addr_reg = MIPI_DATA_ADD_REG(pipe);
 643         pkg_sender->mipi_data_len_reg = MIPI_DATA_LEN_REG(pipe);
 644         pkg_sender->mipi_cmd_addr_reg = MIPI_CMD_ADD_REG(pipe);
 645         pkg_sender->mipi_cmd_len_reg = MIPI_CMD_LEN_REG(pipe);
 646 
 647         /*init lock*/
 648         spin_lock_init(&pkg_sender->lock);
 649 
 650         if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
 651                 /**
 652                  * For video mode, don't enable DPI timing output here,
 653                  * will init the DPI timing output during mode setting.
 654                  */
 655                 mipi_val = PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
 656 
 657                 if (pipe == 0)
 658                         mipi_val |= 0x2;
 659 
 660                 REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi_val);
 661                 REG_READ(MIPI_PORT_CONTROL(pipe));
 662 
 663                 /* do dsi controller init */
 664                 mdfld_dsi_controller_init(dsi_config, pipe);
 665         }
 666 
 667         return 0;
 668 }
 669 
 670 void mdfld_dsi_pkg_sender_destroy(struct mdfld_dsi_pkg_sender *sender)
 671 {
 672         if (!sender || IS_ERR(sender))
 673                 return;
 674 
 675         /*free*/
 676         kfree(sender);
 677 }
 678 
 679
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c

DEFINITIONS
