drivers/media/video/cpia2/cpia2_core.c

   1 /****************************************************************************
   2  *
   3  *  Filename: cpia2_core.c
   4  *
   5  *  Copyright 2001, STMicrolectronics, Inc.
   6  *      Contact:  steve.miller@st.com
   7  *
   8  *  Description:
   9  *     This is a USB driver for CPia2 based video cameras.
  10  *     The infrastructure of this driver is based on the cpia usb driver by
  11  *     Jochen Scharrlach and Johannes Erdfeldt.
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License as published by
  15  *  the Free Software Foundation; either version 2 of the License, or
  16  *  (at your option) any later version.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software
  25  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  *
  27  *  Stripped of 2.4 stuff ready for main kernel submit by
  28  *              Alan Cox <alan@redhat.com>
  29  *
  30  ****************************************************************************/
  31
  32 #include "cpia2.h"
  33
  34 #include <linux/slab.h>
  35 #include <linux/vmalloc.h>
  36
  37 /* #define _CPIA2_DEBUG_ */
  38
  39 #include "cpia2patch.h"
  40
  41 #ifdef _CPIA2_DEBUG_
  42
  43 static const char *block_name[] = {
  44         "System",
  45         "VC",
  46         "VP",
  47         "IDATA"
  48 };
  49 #endif
  50
  51 static unsigned int debugs_on;  /* default 0 - DEBUG_REG */
  52
  53
  54 /******************************************************************************
  55  *
  56  *  Forward Declarations
  57  *
  58  *****************************************************************************/
  59 static int apply_vp_patch(struct camera_data *cam);
  60 static int set_default_user_mode(struct camera_data *cam);
  61 static int set_vw_size(struct camera_data *cam, int size);
  62 static int configure_sensor(struct camera_data *cam,
  63                             int reqwidth, int reqheight);
  64 static int config_sensor_410(struct camera_data *cam,
  65                             int reqwidth, int reqheight);
  66 static int config_sensor_500(struct camera_data *cam,
  67                             int reqwidth, int reqheight);
  68 static int set_all_properties(struct camera_data *cam);
  69 static void get_color_params(struct camera_data *cam);
  70 static void wake_system(struct camera_data *cam);
  71 static void set_lowlight_boost(struct camera_data *cam);
  72 static void reset_camera_struct(struct camera_data *cam);
  73 static int cpia2_set_high_power(struct camera_data *cam);
  74
  75 /* Here we want the physical address of the memory.
  76  * This is used when initializing the contents of the
  77  * area and marking the pages as reserved.
  78  */
  79 static inline unsigned long kvirt_to_pa(unsigned long adr)
  80 {
  81         unsigned long kva, ret;
  82
  83         kva = (unsigned long) page_address(vmalloc_to_page((void *)adr));
  84         kva |= adr & (PAGE_SIZE-1); /* restore the offset */
  85         ret = __pa(kva);
  86         return ret;
  87 }
  88
  89 static void *rvmalloc(unsigned long size)
  90 {
  91         void *mem;
  92         unsigned long adr;
  93
  94         /* Round it off to PAGE_SIZE */
  95         size = PAGE_ALIGN(size);
  96
  97         mem = vmalloc_32(size);
  98         if (!mem)
  99                 return NULL;
 100
 101         memset(mem, 0, size);   /* Clear the ram out, no junk to the user */
 102         adr = (unsigned long) mem;
 103
 104         while ((long)size > 0) {
 105                 SetPageReserved(vmalloc_to_page((void *)adr));
 106                 adr += PAGE_SIZE;
 107                 size -= PAGE_SIZE;
 108         }
 109         return mem;
 110 }
 111
 112 static void rvfree(void *mem, unsigned long size)
 113 {
 114         unsigned long adr;
 115
 116         if (!mem)
 117                 return;
 118
 119         size = PAGE_ALIGN(size);
 120
 121         adr = (unsigned long) mem;
 122         while ((long)size > 0) {
 123                 ClearPageReserved(vmalloc_to_page((void *)adr));
 124                 adr += PAGE_SIZE;
 125                 size -= PAGE_SIZE;
 126         }
 127         vfree(mem);
 128 }
 129
 130 /******************************************************************************
 131  *
 132  *  cpia2_do_command
 133  *
 134  *  Send an arbitrary command to the camera.  For commands that read from
 135  *  the camera, copy the buffers into the proper param structures.
 136  *****************************************************************************/
 137 int cpia2_do_command(struct camera_data *cam,
 138                      u32 command, u8 direction, u8 param)
 139 {
 140         int retval = 0;
 141         struct cpia2_command cmd;
 142         unsigned int device = cam->params.pnp_id.device_type;
 143
 144         cmd.command = command;
 145         cmd.reg_count = 2;      /* default */
 146         cmd.direction = direction;
 147
 148         /***
 149          * Set up the command.
 150          ***/
 151         switch (command) {
 152         case CPIA2_CMD_GET_VERSION:
 153                 cmd.req_mode =
 154                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 155                 cmd.start = CPIA2_SYSTEM_DEVICE_HI;
 156                 break;
 157         case CPIA2_CMD_GET_PNP_ID:
 158                 cmd.req_mode =
 159                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 160                 cmd.reg_count = 8;
 161                 cmd.start = CPIA2_SYSTEM_DESCRIP_VID_HI;
 162                 break;
 163         case CPIA2_CMD_GET_ASIC_TYPE:
 164                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 165                 cmd.start = CPIA2_VC_ASIC_ID;
 166                 break;
 167         case CPIA2_CMD_GET_SENSOR:
 168                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 169                 cmd.start = CPIA2_VP_SENSOR_FLAGS;
 170                 break;
 171         case CPIA2_CMD_GET_VP_DEVICE:
 172                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 173                 cmd.start = CPIA2_VP_DEVICEH;
 174                 break;
 175         case CPIA2_CMD_SET_VP_BRIGHTNESS:
 176                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 177         case CPIA2_CMD_GET_VP_BRIGHTNESS:
 178                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 179                 cmd.reg_count = 1;
 180                 if (device == DEVICE_STV_672)
 181                         cmd.start = CPIA2_VP4_EXPOSURE_TARGET;
 182                 else
 183                         cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
 184                 break;
 185         case CPIA2_CMD_SET_CONTRAST:
 186                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 187         case CPIA2_CMD_GET_CONTRAST:
 188                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 189                 cmd.reg_count = 1;
 190                 cmd.start = CPIA2_VP_YRANGE;
 191                 break;
 192         case CPIA2_CMD_SET_VP_SATURATION:
 193                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 194         case CPIA2_CMD_GET_VP_SATURATION:
 195                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 196                 cmd.reg_count = 1;
 197                 if (device == DEVICE_STV_672)
 198                         cmd.start = CPIA2_VP_SATURATION;
 199                 else
 200                         cmd.start = CPIA2_VP5_MCUVSATURATION;
 201                 break;
 202         case CPIA2_CMD_SET_VP_GPIO_DATA:
 203                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 204         case CPIA2_CMD_GET_VP_GPIO_DATA:
 205                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 206                 cmd.reg_count = 1;
 207                 cmd.start = CPIA2_VP_GPIO_DATA;
 208                 break;
 209         case CPIA2_CMD_SET_VP_GPIO_DIRECTION:
 210                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 211         case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
 212                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 213                 cmd.reg_count = 1;
 214                 cmd.start = CPIA2_VP_GPIO_DIRECTION;
 215                 break;
 216         case CPIA2_CMD_SET_VC_MP_GPIO_DATA:
 217                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 218         case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
 219                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 220                 cmd.reg_count = 1;
 221                 cmd.start = CPIA2_VC_MP_DATA;
 222                 break;
 223         case CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION:
 224                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 225         case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
 226                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 227                 cmd.reg_count = 1;
 228                 cmd.start = CPIA2_VC_MP_DIR;
 229                 break;
 230         case CPIA2_CMD_ENABLE_PACKET_CTRL:
 231                 cmd.req_mode =
 232                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 233                 cmd.start = CPIA2_SYSTEM_INT_PACKET_CTRL;
 234                 cmd.reg_count = 1;
 235                 cmd.buffer.block_data[0] = param;
 236                 break;
 237         case CPIA2_CMD_SET_FLICKER_MODES:
 238                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 239         case CPIA2_CMD_GET_FLICKER_MODES:
 240                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 241                 cmd.reg_count = 1;
 242                 cmd.start = CPIA2_VP_FLICKER_MODES;
 243                 break;
 244         case CPIA2_CMD_RESET_FIFO:      /* clear fifo and enable stream block */
 245                 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
 246                 cmd.reg_count = 2;
 247                 cmd.start = 0;
 248                 cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
 249                 cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
 250                     CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
 251                 cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
 252                 cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
 253                     CPIA2_VC_ST_CTRL_DST_USB |
 254                     CPIA2_VC_ST_CTRL_EOF_DETECT |
 255                     CPIA2_VC_ST_CTRL_FIFO_ENABLE;
 256                 break;
 257         case CPIA2_CMD_SET_HI_POWER:
 258                 cmd.req_mode =
 259                     CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
 260                 cmd.reg_count = 2;
 261                 cmd.buffer.registers[0].index =
 262                     CPIA2_SYSTEM_SYSTEM_CONTROL;
 263                 cmd.buffer.registers[1].index =
 264                     CPIA2_SYSTEM_SYSTEM_CONTROL;
 265                 cmd.buffer.registers[0].value = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
 266                 cmd.buffer.registers[1].value =
 267                     CPIA2_SYSTEM_CONTROL_HIGH_POWER;
 268                 break;
 269         case CPIA2_CMD_SET_LOW_POWER:
 270                 cmd.req_mode =
 271                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 272                 cmd.reg_count = 1;
 273                 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
 274                 cmd.buffer.block_data[0] = 0;
 275                 break;
 276         case CPIA2_CMD_CLEAR_V2W_ERR:
 277                 cmd.req_mode =
 278                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 279                 cmd.reg_count = 1;
 280                 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
 281                 cmd.buffer.block_data[0] = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
 282                 break;
 283         case CPIA2_CMD_SET_USER_MODE:   /* Then fall through */
 284                 cmd.buffer.block_data[0] = param;
 285         case CPIA2_CMD_GET_USER_MODE:
 286                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 287                 cmd.reg_count = 1;
 288                 if (device == DEVICE_STV_672)
 289                         cmd.start = CPIA2_VP4_USER_MODE;
 290                 else
 291                         cmd.start = CPIA2_VP5_USER_MODE;
 292                 break;
 293         case CPIA2_CMD_FRAMERATE_REQ:
 294                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 295                 cmd.reg_count = 1;
 296                 if (device == DEVICE_STV_672)
 297                         cmd.start = CPIA2_VP4_FRAMERATE_REQUEST;
 298                 else
 299                         cmd.start = CPIA2_VP5_FRAMERATE_REQUEST;
 300                 cmd.buffer.block_data[0] = param;
 301                 break;
 302         case CPIA2_CMD_SET_WAKEUP:
 303                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 304         case CPIA2_CMD_GET_WAKEUP:
 305                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 306                 cmd.reg_count = 1;
 307                 cmd.start = CPIA2_VC_WAKEUP;
 308                 break;
 309         case CPIA2_CMD_SET_PW_CONTROL:
 310                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 311         case CPIA2_CMD_GET_PW_CONTROL:
 312                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 313                 cmd.reg_count = 1;
 314                 cmd.start = CPIA2_VC_PW_CTRL;
 315                 break;
 316         case CPIA2_CMD_GET_VP_SYSTEM_STATE:
 317                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 318                 cmd.reg_count = 1;
 319                 cmd.start = CPIA2_VP_SYSTEMSTATE;
 320                 break;
 321         case CPIA2_CMD_SET_SYSTEM_CTRL:
 322                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 323         case CPIA2_CMD_GET_SYSTEM_CTRL:
 324                 cmd.req_mode =
 325                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 326                 cmd.reg_count = 1;
 327                 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
 328                 break;
 329         case CPIA2_CMD_SET_VP_SYSTEM_CTRL:
 330                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 331         case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
 332                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 333                 cmd.reg_count = 1;
 334                 cmd.start = CPIA2_VP_SYSTEMCTRL;
 335                 break;
 336         case CPIA2_CMD_SET_VP_EXP_MODES:
 337                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 338         case CPIA2_CMD_GET_VP_EXP_MODES:
 339                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 340                 cmd.reg_count = 1;
 341                 cmd.start = CPIA2_VP_EXPOSURE_MODES;
 342                 break;
 343         case CPIA2_CMD_SET_DEVICE_CONFIG:
 344                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 345         case CPIA2_CMD_GET_DEVICE_CONFIG:
 346                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 347                 cmd.reg_count = 1;
 348                 cmd.start = CPIA2_VP_DEVICE_CONFIG;
 349                 break;
 350         case CPIA2_CMD_SET_SERIAL_ADDR:
 351                 cmd.buffer.block_data[0] = param;
 352                 cmd.req_mode =
 353                     CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
 354                 cmd.reg_count = 1;
 355                 cmd.start = CPIA2_SYSTEM_VP_SERIAL_ADDR;
 356                 break;
 357         case CPIA2_CMD_SET_SENSOR_CR1:
 358                 cmd.buffer.block_data[0] = param;
 359                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 360                 cmd.reg_count = 1;
 361                 cmd.start = CPIA2_SENSOR_CR1;
 362                 break;
 363         case CPIA2_CMD_SET_VC_CONTROL:
 364                 cmd.buffer.block_data[0] = param;       /* Then fall through */
 365         case CPIA2_CMD_GET_VC_CONTROL:
 366                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
 367                 cmd.reg_count = 1;
 368                 cmd.start = CPIA2_VC_VC_CTRL;
 369                 break;
 370         case CPIA2_CMD_SET_TARGET_KB:
 371                 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
 372                 cmd.reg_count = 1;
 373                 cmd.buffer.registers[0].index = CPIA2_VC_VC_TARGET_KB;
 374                 cmd.buffer.registers[0].value = param;
 375                 break;
 376         case CPIA2_CMD_SET_DEF_JPEG_OPT:
 377                 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
 378                 cmd.reg_count = 4;
 379                 cmd.buffer.registers[0].index = CPIA2_VC_VC_JPEG_OPT;
 380                 cmd.buffer.registers[0].value =
 381                     CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE;
 382                 cmd.buffer.registers[1].index = CPIA2_VC_VC_USER_SQUEEZE;
 383                 cmd.buffer.registers[1].value = 20;
 384                 cmd.buffer.registers[2].index = CPIA2_VC_VC_CREEP_PERIOD;
 385                 cmd.buffer.registers[2].value = 2;
 386                 cmd.buffer.registers[3].index = CPIA2_VC_VC_JPEG_OPT;
 387                 cmd.buffer.registers[3].value = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
 388                 break;
 389         case CPIA2_CMD_REHASH_VP4:
 390                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 391                 cmd.reg_count = 1;
 392                 cmd.start = CPIA2_VP_REHASH_VALUES;
 393                 cmd.buffer.block_data[0] = param;
 394                 break;
 395         case CPIA2_CMD_SET_USER_EFFECTS:  /* Note: Be careful with this as
 396                                              this register can also affect
 397                                              flicker modes */
 398                 cmd.buffer.block_data[0] = param;      /* Then fall through */
 399         case CPIA2_CMD_GET_USER_EFFECTS:
 400                 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
 401                 cmd.reg_count = 1;
 402                 if (device == DEVICE_STV_672)
 403                         cmd.start = CPIA2_VP4_USER_EFFECTS;
 404                 else
 405                         cmd.start = CPIA2_VP5_USER_EFFECTS;
 406                 break;
 407         default:
 408                 LOG("DoCommand received invalid command\n");
 409                 return -EINVAL;
 410         }
 411
 412         retval = cpia2_send_command(cam, &cmd);
 413         if (retval) {
 414                 return retval;
 415         }
 416
 417         /***
 418          * Now copy any results from a read into the appropriate param struct.
 419          ***/
 420         switch (command) {
 421         case CPIA2_CMD_GET_VERSION:
 422                 cam->params.version.firmware_revision_hi =
 423                     cmd.buffer.block_data[0];
 424                 cam->params.version.firmware_revision_lo =
 425                     cmd.buffer.block_data[1];
 426                 break;
 427         case CPIA2_CMD_GET_PNP_ID:
 428                 cam->params.pnp_id.vendor = (cmd.buffer.block_data[0] << 8) |
 429                                             cmd.buffer.block_data[1];
 430                 cam->params.pnp_id.product = (cmd.buffer.block_data[2] << 8) |
 431                                              cmd.buffer.block_data[3];
 432                 cam->params.pnp_id.device_revision =
 433                         (cmd.buffer.block_data[4] << 8) |
 434                         cmd.buffer.block_data[5];
 435                 if (cam->params.pnp_id.vendor == 0x553) {
 436                         if (cam->params.pnp_id.product == 0x100) {
 437                                 cam->params.pnp_id.device_type = DEVICE_STV_672;
 438                         } else if (cam->params.pnp_id.product == 0x140 ||
 439                                    cam->params.pnp_id.product == 0x151) {
 440                                 cam->params.pnp_id.device_type = DEVICE_STV_676;
 441                         }
 442                 }
 443                 break;
 444         case CPIA2_CMD_GET_ASIC_TYPE:
 445                 cam->params.version.asic_id = cmd.buffer.block_data[0];
 446                 cam->params.version.asic_rev = cmd.buffer.block_data[1];
 447                 break;
 448         case CPIA2_CMD_GET_SENSOR:
 449                 cam->params.version.sensor_flags = cmd.buffer.block_data[0];
 450                 cam->params.version.sensor_rev = cmd.buffer.block_data[1];
 451                 break;
 452         case CPIA2_CMD_GET_VP_DEVICE:
 453                 cam->params.version.vp_device_hi = cmd.buffer.block_data[0];
 454                 cam->params.version.vp_device_lo = cmd.buffer.block_data[1];
 455                 break;
 456         case CPIA2_CMD_GET_VP_BRIGHTNESS:
 457                 cam->params.color_params.brightness = cmd.buffer.block_data[0];
 458                 break;
 459         case CPIA2_CMD_GET_CONTRAST:
 460                 cam->params.color_params.contrast = cmd.buffer.block_data[0];
 461                 break;
 462         case CPIA2_CMD_GET_VP_SATURATION:
 463                 cam->params.color_params.saturation = cmd.buffer.block_data[0];
 464                 break;
 465         case CPIA2_CMD_GET_VP_GPIO_DATA:
 466                 cam->params.vp_params.gpio_data = cmd.buffer.block_data[0];
 467                 break;
 468         case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
 469                 cam->params.vp_params.gpio_direction = cmd.buffer.block_data[0];
 470                 break;
 471         case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
 472                 cam->params.vc_params.vc_mp_direction =cmd.buffer.block_data[0];
 473                 break;
 474         case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
 475                 cam->params.vc_params.vc_mp_data = cmd.buffer.block_data[0];
 476                 break;
 477         case CPIA2_CMD_GET_FLICKER_MODES:
 478                 cam->params.flicker_control.cam_register =
 479                         cmd.buffer.block_data[0];
 480                 break;
 481         case CPIA2_CMD_GET_WAKEUP:
 482                 cam->params.vc_params.wakeup = cmd.buffer.block_data[0];
 483                 break;
 484         case CPIA2_CMD_GET_PW_CONTROL:
 485                 cam->params.vc_params.pw_control = cmd.buffer.block_data[0];
 486                 break;
 487         case CPIA2_CMD_GET_SYSTEM_CTRL:
 488                 cam->params.camera_state.system_ctrl = cmd.buffer.block_data[0];
 489                 break;
 490         case CPIA2_CMD_GET_VP_SYSTEM_STATE:
 491                 cam->params.vp_params.system_state = cmd.buffer.block_data[0];
 492                 break;
 493         case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
 494                 cam->params.vp_params.system_ctrl = cmd.buffer.block_data[0];
 495                 break;
 496         case CPIA2_CMD_GET_VP_EXP_MODES:
 497                 cam->params.vp_params.exposure_modes = cmd.buffer.block_data[0];
 498                 break;
 499         case CPIA2_CMD_GET_DEVICE_CONFIG:
 500                 cam->params.vp_params.device_config = cmd.buffer.block_data[0];
 501                 break;
 502         case CPIA2_CMD_GET_VC_CONTROL:
 503                 cam->params.vc_params.vc_control = cmd.buffer.block_data[0];
 504                 break;
 505         case CPIA2_CMD_GET_USER_MODE:
 506                 cam->params.vp_params.video_mode = cmd.buffer.block_data[0];
 507                 break;
 508         case CPIA2_CMD_GET_USER_EFFECTS:
 509                 cam->params.vp_params.user_effects = cmd.buffer.block_data[0];
 510                 break;
 511         default:
 512                 break;
 513         }
 514         return retval;
 515 }
 516
 517 /******************************************************************************
 518  *
 519  *  cpia2_send_command
 520  *
 521  *****************************************************************************/
 522 int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd)
 523 {
 524         u8 count;
 525         u8 start;
 526         u8 block_index;
 527         u8 *buffer;
 528         int retval;
 529         const char* dir;
 530
 531         if (cmd->direction == TRANSFER_WRITE) {
 532                 dir = "Write";
 533         } else {
 534                 dir = "Read";
 535         }
 536
 537         block_index = cmd->req_mode & 0x03;
 538
 539         switch (cmd->req_mode & 0x0c) {
 540         case CAMERAACCESS_TYPE_RANDOM:
 541                 count = cmd->reg_count * sizeof(struct cpia2_register);
 542                 start = 0;
 543                 buffer = (u8 *) & cmd->buffer;
 544                 if (debugs_on & DEBUG_REG)
 545                         DBG("%s Random: Register block %s\n", dir,
 546                             block_name[block_index]);
 547                 break;
 548         case CAMERAACCESS_TYPE_BLOCK:
 549                 count = cmd->reg_count;
 550                 start = cmd->start;
 551                 buffer = cmd->buffer.block_data;
 552                 if (debugs_on & DEBUG_REG)
 553                         DBG("%s Block: Register block %s\n", dir,
 554                             block_name[block_index]);
 555                 break;
 556         case CAMERAACCESS_TYPE_MASK:
 557                 count = cmd->reg_count * sizeof(struct cpia2_reg_mask);
 558                 start = 0;
 559                 buffer = (u8 *) & cmd->buffer;
 560                 if (debugs_on & DEBUG_REG)
 561                         DBG("%s Mask: Register block %s\n", dir,
 562                             block_name[block_index]);
 563                 break;
 564         case CAMERAACCESS_TYPE_REPEAT:  /* For patch blocks only */
 565                 count = cmd->reg_count;
 566                 start = cmd->start;
 567                 buffer = cmd->buffer.block_data;
 568                 if (debugs_on & DEBUG_REG)
 569                         DBG("%s Repeat: Register block %s\n", dir,
 570                             block_name[block_index]);
 571                 break;
 572         default:
 573                 LOG("%s: invalid request mode\n",__func__);
 574                 return -EINVAL;
 575         }
 576
 577         retval = cpia2_usb_transfer_cmd(cam,
 578                                         buffer,
 579                                         cmd->req_mode,
 580                                         start, count, cmd->direction);
 581 #ifdef _CPIA2_DEBUG_
 582         if (debugs_on & DEBUG_REG) {
 583                 int i;
 584                 for (i = 0; i < cmd->reg_count; i++) {
 585                         if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_BLOCK)
 586                                 KINFO("%s Block: [0x%02X] = 0x%02X\n",
 587                                     dir, start + i, buffer[i]);
 588                         if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_RANDOM)
 589                                 KINFO("%s Random: [0x%02X] = 0x%02X\n",
 590                                     dir, cmd->buffer.registers[i].index,
 591                                     cmd->buffer.registers[i].value);
 592                 }
 593         }
 594 #endif
 595
 596         return retval;
 597 };
 598
 599 /*************
 600  * Functions to implement camera functionality
 601  *************/
 602 /******************************************************************************
 603  *
 604  *  cpia2_get_version_info
 605  *
 606  *****************************************************************************/
 607 static void cpia2_get_version_info(struct camera_data *cam)
 608 {
 609         cpia2_do_command(cam, CPIA2_CMD_GET_VERSION, TRANSFER_READ, 0);
 610         cpia2_do_command(cam, CPIA2_CMD_GET_PNP_ID, TRANSFER_READ, 0);
 611         cpia2_do_command(cam, CPIA2_CMD_GET_ASIC_TYPE, TRANSFER_READ, 0);
 612         cpia2_do_command(cam, CPIA2_CMD_GET_SENSOR, TRANSFER_READ, 0);
 613         cpia2_do_command(cam, CPIA2_CMD_GET_VP_DEVICE, TRANSFER_READ, 0);
 614 }
 615
 616 /******************************************************************************
 617  *
 618  *  cpia2_reset_camera
 619  *
 620  *  Called at least during the open process, sets up initial params.
 621  *****************************************************************************/
 622 int cpia2_reset_camera(struct camera_data *cam)
 623 {
 624         u8 tmp_reg;
 625         int retval = 0;
 626         int i;
 627         struct cpia2_command cmd;
 628
 629         /***
 630          * VC setup
 631          ***/
 632         retval = configure_sensor(cam,
 633                                   cam->params.roi.width,
 634                                   cam->params.roi.height);
 635         if (retval < 0) {
 636                 ERR("Couldn't configure sensor, error=%d\n", retval);
 637                 return retval;
 638         }
 639
 640         /* Clear FIFO and route/enable stream block */
 641         cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
 642         cmd.direction = TRANSFER_WRITE;
 643         cmd.reg_count = 2;
 644         cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
 645         cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
 646                 CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
 647         cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
 648         cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
 649                 CPIA2_VC_ST_CTRL_DST_USB |
 650                 CPIA2_VC_ST_CTRL_EOF_DETECT | CPIA2_VC_ST_CTRL_FIFO_ENABLE;
 651
 652         cpia2_send_command(cam, &cmd);
 653
 654         cpia2_set_high_power(cam);
 655
 656         if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
 657                 /* Enable button notification */
 658                 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
 659                 cmd.buffer.registers[0].index = CPIA2_SYSTEM_INT_PACKET_CTRL;
 660                 cmd.buffer.registers[0].value =
 661                         CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX;
 662                 cmd.reg_count = 1;
 663                 cpia2_send_command(cam, &cmd);
 664         }
 665
 666         schedule_timeout_interruptible(msecs_to_jiffies(100));
 667
 668         if (cam->params.pnp_id.device_type == DEVICE_STV_672)
 669                 retval = apply_vp_patch(cam);
 670
 671         /* wait for vp to go to sleep */
 672         schedule_timeout_interruptible(msecs_to_jiffies(100));
 673
 674         /***
 675          * If this is a 676, apply VP5 fixes before we start streaming
 676          ***/
 677         if (cam->params.pnp_id.device_type == DEVICE_STV_676) {
 678                 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
 679
 680                 /* The following writes improve the picture */
 681                 cmd.buffer.registers[0].index = CPIA2_VP5_MYBLACK_LEVEL;
 682                 cmd.buffer.registers[0].value = 0; /* reduce from the default
 683                                                     * rec 601 pedestal of 16 */
 684                 cmd.buffer.registers[1].index = CPIA2_VP5_MCYRANGE;
 685                 cmd.buffer.registers[1].value = 0x92; /* increase from 100% to
 686                                                        * (256/256 - 31) to fill
 687                                                        * available range */
 688                 cmd.buffer.registers[2].index = CPIA2_VP5_MYCEILING;
 689                 cmd.buffer.registers[2].value = 0xFF; /* Increase from the
 690                                                        * default rec 601 ceiling
 691                                                        * of 240 */
 692                 cmd.buffer.registers[3].index = CPIA2_VP5_MCUVSATURATION;
 693                 cmd.buffer.registers[3].value = 0xFF; /* Increase from the rec
 694                                                        * 601 100% level (128)
 695                                                        * to 145-192 */
 696                 cmd.buffer.registers[4].index = CPIA2_VP5_ANTIFLKRSETUP;
 697                 cmd.buffer.registers[4].value = 0x80;  /* Inhibit the
 698                                                         * anti-flicker */
 699
 700                 /* The following 4 writes are a fix to allow QVGA to work at 30 fps */
 701                 cmd.buffer.registers[5].index = CPIA2_VP_RAM_ADDR_H;
 702                 cmd.buffer.registers[5].value = 0x01;
 703                 cmd.buffer.registers[6].index = CPIA2_VP_RAM_ADDR_L;
 704                 cmd.buffer.registers[6].value = 0xE3;
 705                 cmd.buffer.registers[7].index = CPIA2_VP_RAM_DATA;
 706                 cmd.buffer.registers[7].value = 0x02;
 707                 cmd.buffer.registers[8].index = CPIA2_VP_RAM_DATA;
 708                 cmd.buffer.registers[8].value = 0xFC;
 709
 710                 cmd.direction = TRANSFER_WRITE;
 711                 cmd.reg_count = 9;
 712
 713                 cpia2_send_command(cam, &cmd);
 714         }
 715
 716         /* Activate all settings and start the data stream */
 717         /* Set user mode */
 718         set_default_user_mode(cam);
 719
 720         /* Give VP time to wake up */
 721         schedule_timeout_interruptible(msecs_to_jiffies(100));
 722
 723         set_all_properties(cam);
 724
 725         cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
 726         DBG("After SetAllProperties(cam), user mode is 0x%0X\n",
 727             cam->params.vp_params.video_mode);
 728
 729         /***
 730          * Set audio regulator off.  This and the code to set the compresison
 731          * state are too complex to form a CPIA2_CMD_, and seem to be somewhat
 732          * intertwined.  This stuff came straight from the windows driver.
 733          ***/
 734         /* Turn AutoExposure off in VP and enable the serial bridge to the sensor */
 735         cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
 736         tmp_reg = cam->params.vp_params.system_ctrl;
 737         cmd.buffer.registers[0].value = tmp_reg &
 738                 (tmp_reg & (CPIA2_VP_SYSTEMCTRL_HK_CONTROL ^ 0xFF));
 739
 740         cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
 741         cmd.buffer.registers[1].value = cam->params.vp_params.device_config |
 742                                         CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE;
 743         cmd.buffer.registers[0].index = CPIA2_VP_SYSTEMCTRL;
 744         cmd.buffer.registers[1].index = CPIA2_VP_DEVICE_CONFIG;
 745         cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
 746         cmd.reg_count = 2;
 747         cmd.direction = TRANSFER_WRITE;
 748         cmd.start = 0;
 749         cpia2_send_command(cam, &cmd);
 750
 751         /* Set the correct I2C address in the CPiA-2 system register */
 752         cpia2_do_command(cam,
 753                          CPIA2_CMD_SET_SERIAL_ADDR,
 754                          TRANSFER_WRITE,
 755                          CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR);
 756
 757         /* Now have sensor access - set bit to turn the audio regulator off */
 758         cpia2_do_command(cam,
 759                          CPIA2_CMD_SET_SENSOR_CR1,
 760                          TRANSFER_WRITE, CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR);
 761
 762         /* Set the correct I2C address in the CPiA-2 system register */
 763         if (cam->params.pnp_id.device_type == DEVICE_STV_672)
 764                 cpia2_do_command(cam,
 765                                  CPIA2_CMD_SET_SERIAL_ADDR,
 766                                  TRANSFER_WRITE,
 767                                  CPIA2_SYSTEM_VP_SERIAL_ADDR_VP); // 0x88
 768         else
 769                 cpia2_do_command(cam,
 770                                  CPIA2_CMD_SET_SERIAL_ADDR,
 771                                  TRANSFER_WRITE,
 772                                  CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP); // 0x8a
 773
 774         /* increase signal drive strength */
 775         if (cam->params.pnp_id.device_type == DEVICE_STV_676)
 776                 cpia2_do_command(cam,
 777                                  CPIA2_CMD_SET_VP_EXP_MODES,
 778                                  TRANSFER_WRITE,
 779                                  CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP);
 780
 781         /* Start autoexposure */
 782         cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
 783         cmd.buffer.registers[0].value = cam->params.vp_params.device_config &
 784                                   (CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE ^ 0xFF);
 785
 786         cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
 787         cmd.buffer.registers[1].value =
 788             cam->params.vp_params.system_ctrl | CPIA2_VP_SYSTEMCTRL_HK_CONTROL;
 789
 790         cmd.buffer.registers[0].index = CPIA2_VP_DEVICE_CONFIG;
 791         cmd.buffer.registers[1].index = CPIA2_VP_SYSTEMCTRL;
 792         cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
 793         cmd.reg_count = 2;
 794         cmd.direction = TRANSFER_WRITE;
 795
 796         cpia2_send_command(cam, &cmd);
 797
 798         /* Set compression state */
 799         cpia2_do_command(cam, CPIA2_CMD_GET_VC_CONTROL, TRANSFER_READ, 0);
 800         if (cam->params.compression.inhibit_htables) {
 801                 tmp_reg = cam->params.vc_params.vc_control |
 802                           CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
 803         } else  {
 804                 tmp_reg = cam->params.vc_params.vc_control &
 805                           ~CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
 806         }
 807         cpia2_do_command(cam, CPIA2_CMD_SET_VC_CONTROL, TRANSFER_WRITE,tmp_reg);
 808
 809         /* Set target size (kb) on vc */
 810         cpia2_do_command(cam, CPIA2_CMD_SET_TARGET_KB,
 811                          TRANSFER_WRITE, cam->params.vc_params.target_kb);
 812
 813         /* Wiggle VC Reset */
 814         /***
 815          * First read and wait a bit.
 816          ***/
 817         for (i = 0; i < 50; i++) {
 818                 cpia2_do_command(cam, CPIA2_CMD_GET_PW_CONTROL,
 819                                  TRANSFER_READ, 0);
 820         }
 821
 822         tmp_reg = cam->params.vc_params.pw_control;
 823         tmp_reg &= ~CPIA2_VC_PW_CTRL_VC_RESET_N;
 824
 825         cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
 826
 827         tmp_reg |= CPIA2_VC_PW_CTRL_VC_RESET_N;
 828         cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
 829
 830         cpia2_do_command(cam, CPIA2_CMD_SET_DEF_JPEG_OPT, TRANSFER_WRITE, 0);
 831
 832         cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
 833         DBG("After VC RESET, user mode is 0x%0X\n",
 834             cam->params.vp_params.video_mode);
 835
 836         return retval;
 837 }
 838
 839 /******************************************************************************
 840  *
 841  *  cpia2_set_high_power
 842  *
 843  *****************************************************************************/
 844 static int cpia2_set_high_power(struct camera_data *cam)
 845 {
 846         int i;
 847         for (i = 0; i <= 50; i++) {
 848                 /* Read system status */
 849                 cpia2_do_command(cam,CPIA2_CMD_GET_SYSTEM_CTRL,TRANSFER_READ,0);
 850
 851                 /* If there is an error, clear it */
 852                 if(cam->params.camera_state.system_ctrl &
 853                    CPIA2_SYSTEM_CONTROL_V2W_ERR)
 854                         cpia2_do_command(cam, CPIA2_CMD_CLEAR_V2W_ERR,
 855                                          TRANSFER_WRITE, 0);
 856
 857                 /* Try to set high power mode */
 858                 cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL,
 859                                  TRANSFER_WRITE, 1);
 860
 861                 /* Try to read something in VP to check if everything is awake */
 862                 cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_STATE,
 863                                  TRANSFER_READ, 0);
 864                 if (cam->params.vp_params.system_state &
 865                     CPIA2_VP_SYSTEMSTATE_HK_ALIVE) {
 866                         break;
 867                 } else if (i == 50) {
 868                         cam->params.camera_state.power_mode = LO_POWER_MODE;
 869                         ERR("Camera did not wake up\n");
 870                         return -EIO;
 871                 }
 872         }
 873
 874         DBG("System now in high power state\n");
 875         cam->params.camera_state.power_mode = HI_POWER_MODE;
 876         return 0;
 877 }
 878
 879 /******************************************************************************
 880  *
 881  *  cpia2_set_low_power
 882  *
 883  *****************************************************************************/
 884 int cpia2_set_low_power(struct camera_data *cam)
 885 {
 886         cam->params.camera_state.power_mode = LO_POWER_MODE;
 887         cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL, TRANSFER_WRITE, 0);
 888         return 0;
 889 }
 890
 891 /******************************************************************************
 892  *
 893  *  apply_vp_patch
 894  *
 895  *****************************************************************************/
 896 static int apply_vp_patch(struct camera_data *cam)
 897 {
 898         int i, j;
 899         struct cpia2_command cmd;
 900
 901         cmd.req_mode = CAMERAACCESS_TYPE_REPEAT | CAMERAACCESS_VP;
 902         cmd.direction = TRANSFER_WRITE;
 903
 904         for (i = 0; i < PATCH_DATA_SIZE; i++) {
 905                 for (j = 0; j < patch_data[i].count; j++) {
 906                         cmd.buffer.block_data[j] = patch_data[i].data[j];
 907                 }
 908
 909                 cmd.start = patch_data[i].reg;
 910                 cmd.reg_count = patch_data[i].count;
 911                 cpia2_send_command(cam, &cmd);
 912         }
 913
 914         return 0;
 915 }
 916
 917 /******************************************************************************
 918  *
 919  *  set_default_user_mode
 920  *
 921  *****************************************************************************/
 922 static int set_default_user_mode(struct camera_data *cam)
 923 {
 924         unsigned char user_mode;
 925         unsigned char frame_rate;
 926         int width = cam->params.roi.width;
 927         int height = cam->params.roi.height;
 928
 929         switch (cam->params.version.sensor_flags) {
 930         case CPIA2_VP_SENSOR_FLAGS_404:
 931         case CPIA2_VP_SENSOR_FLAGS_407:
 932         case CPIA2_VP_SENSOR_FLAGS_409:
 933         case CPIA2_VP_SENSOR_FLAGS_410:
 934                 if ((width > STV_IMAGE_QCIF_COLS)
 935                     || (height > STV_IMAGE_QCIF_ROWS)) {
 936                         user_mode = CPIA2_VP_USER_MODE_CIF;
 937                 } else {
 938                         user_mode = CPIA2_VP_USER_MODE_QCIFDS;
 939                 }
 940                 frame_rate = CPIA2_VP_FRAMERATE_30;
 941                 break;
 942         case CPIA2_VP_SENSOR_FLAGS_500:
 943                 if ((width > STV_IMAGE_CIF_COLS)
 944                     || (height > STV_IMAGE_CIF_ROWS)) {
 945                         user_mode = CPIA2_VP_USER_MODE_VGA;
 946                 } else {
 947                         user_mode = CPIA2_VP_USER_MODE_QVGADS;
 948                 }
 949                 if (cam->params.pnp_id.device_type == DEVICE_STV_672)
 950                         frame_rate = CPIA2_VP_FRAMERATE_15;
 951                 else
 952                         frame_rate = CPIA2_VP_FRAMERATE_30;
 953                 break;
 954         default:
 955                 LOG("%s: Invalid sensor flag value 0x%0X\n",__func__,
 956                     cam->params.version.sensor_flags);
 957                 return -EINVAL;
 958         }
 959
 960         DBG("Sensor flag = 0x%0x, user mode = 0x%0x, frame rate = 0x%X\n",
 961             cam->params.version.sensor_flags, user_mode, frame_rate);
 962         cpia2_do_command(cam, CPIA2_CMD_SET_USER_MODE, TRANSFER_WRITE,
 963                          user_mode);
 964         if(cam->params.vp_params.frame_rate > 0 &&
 965            frame_rate > cam->params.vp_params.frame_rate)
 966                 frame_rate = cam->params.vp_params.frame_rate;
 967
 968         cpia2_set_fps(cam, frame_rate);
 969
 970 //      if (cam->params.pnp_id.device_type == DEVICE_STV_676)
 971 //              cpia2_do_command(cam,
 972 //                               CPIA2_CMD_SET_VP_SYSTEM_CTRL,
 973 //                               TRANSFER_WRITE,
 974 //                               CPIA2_VP_SYSTEMCTRL_HK_CONTROL |
 975 //                               CPIA2_VP_SYSTEMCTRL_POWER_CONTROL);
 976
 977         return 0;
 978 }
 979
 980 /******************************************************************************
 981  *
 982  *  cpia2_match_video_size
 983  *
 984  *  return the best match, where 'best' is as always
 985  *  the largest that is not bigger than what is requested.
 986  *****************************************************************************/
 987 int cpia2_match_video_size(int width, int height)
 988 {
 989         if (width >= STV_IMAGE_VGA_COLS && height >= STV_IMAGE_VGA_ROWS)
 990                 return VIDEOSIZE_VGA;
 991
 992         if (width >= STV_IMAGE_CIF_COLS && height >= STV_IMAGE_CIF_ROWS)
 993                 return VIDEOSIZE_CIF;
 994
 995         if (width >= STV_IMAGE_QVGA_COLS && height >= STV_IMAGE_QVGA_ROWS)
 996                 return VIDEOSIZE_QVGA;
 997
 998         if (width >= 288 && height >= 216)
 999                 return VIDEOSIZE_288_216;
1000
1001         if (width >= 256 && height >= 192)
1002                 return VIDEOSIZE_256_192;
1003
1004         if (width >= 224 && height >= 168)
1005                 return VIDEOSIZE_224_168;
1006
1007         if (width >= 192 && height >= 144)
1008                 return VIDEOSIZE_192_144;
1009
1010         if (width >= STV_IMAGE_QCIF_COLS && height >= STV_IMAGE_QCIF_ROWS)
1011                 return VIDEOSIZE_QCIF;
1012
1013         return -1;
1014 }
1015
1016 /******************************************************************************
1017  *
1018  *  SetVideoSize
1019  *
1020  *****************************************************************************/
1021 static int set_vw_size(struct camera_data *cam, int size)
1022 {
1023         int retval = 0;
1024
1025         cam->params.vp_params.video_size = size;
1026
1027         switch (size) {
1028         case VIDEOSIZE_VGA:
1029                 DBG("Setting size to VGA\n");
1030                 cam->params.roi.width = STV_IMAGE_VGA_COLS;
1031                 cam->params.roi.height = STV_IMAGE_VGA_ROWS;
1032                 cam->vw.width = STV_IMAGE_VGA_COLS;
1033                 cam->vw.height = STV_IMAGE_VGA_ROWS;
1034                 break;
1035         case VIDEOSIZE_CIF:
1036                 DBG("Setting size to CIF\n");
1037                 cam->params.roi.width = STV_IMAGE_CIF_COLS;
1038                 cam->params.roi.height = STV_IMAGE_CIF_ROWS;
1039                 cam->vw.width = STV_IMAGE_CIF_COLS;
1040                 cam->vw.height = STV_IMAGE_CIF_ROWS;
1041                 break;
1042         case VIDEOSIZE_QVGA:
1043                 DBG("Setting size to QVGA\n");
1044                 cam->params.roi.width = STV_IMAGE_QVGA_COLS;
1045                 cam->params.roi.height = STV_IMAGE_QVGA_ROWS;
1046                 cam->vw.width = STV_IMAGE_QVGA_COLS;
1047                 cam->vw.height = STV_IMAGE_QVGA_ROWS;
1048                 break;
1049         case VIDEOSIZE_288_216:
1050                 cam->params.roi.width = 288;
1051                 cam->params.roi.height = 216;
1052                 cam->vw.width = 288;
1053                 cam->vw.height = 216;
1054                 break;
1055         case VIDEOSIZE_256_192:
1056                 cam->vw.width = 256;
1057                 cam->vw.height = 192;
1058                 cam->params.roi.width = 256;
1059                 cam->params.roi.height = 192;
1060                 break;
1061         case VIDEOSIZE_224_168:
1062                 cam->vw.width = 224;
1063                 cam->vw.height = 168;
1064                 cam->params.roi.width = 224;
1065                 cam->params.roi.height = 168;
1066                 break;
1067         case VIDEOSIZE_192_144:
1068                 cam->vw.width = 192;
1069                 cam->vw.height = 144;
1070                 cam->params.roi.width = 192;
1071                 cam->params.roi.height = 144;
1072                 break;
1073         case VIDEOSIZE_QCIF:
1074                 DBG("Setting size to QCIF\n");
1075                 cam->params.roi.width = STV_IMAGE_QCIF_COLS;
1076                 cam->params.roi.height = STV_IMAGE_QCIF_ROWS;
1077                 cam->vw.width = STV_IMAGE_QCIF_COLS;
1078                 cam->vw.height = STV_IMAGE_QCIF_ROWS;
1079                 break;
1080         default:
1081                 retval = -EINVAL;
1082         }
1083         return retval;
1084 }
1085
1086 /******************************************************************************
1087  *
1088  *  configure_sensor
1089  *
1090  *****************************************************************************/
1091 static int configure_sensor(struct camera_data *cam,
1092                             int req_width, int req_height)
1093 {
1094         int retval;
1095
1096         switch (cam->params.version.sensor_flags) {
1097         case CPIA2_VP_SENSOR_FLAGS_404:
1098         case CPIA2_VP_SENSOR_FLAGS_407:
1099         case CPIA2_VP_SENSOR_FLAGS_409:
1100         case CPIA2_VP_SENSOR_FLAGS_410:
1101                 retval = config_sensor_410(cam, req_width, req_height);
1102                 break;
1103         case CPIA2_VP_SENSOR_FLAGS_500:
1104                 retval = config_sensor_500(cam, req_width, req_height);
1105                 break;
1106         default:
1107                 return -EINVAL;
1108         }
1109
1110         return retval;
1111 }
1112
1113 /******************************************************************************
1114  *
1115  *  config_sensor_410
1116  *
1117  *****************************************************************************/
1118 static int config_sensor_410(struct camera_data *cam,
1119                             int req_width, int req_height)
1120 {
1121         struct cpia2_command cmd;
1122         int i = 0;
1123         int image_size;
1124         int image_type;
1125         int width = req_width;
1126         int height = req_height;
1127
1128         /***
1129          *  Make sure size doesn't exceed CIF.
1130          ***/
1131         if (width > STV_IMAGE_CIF_COLS)
1132                 width = STV_IMAGE_CIF_COLS;
1133         if (height > STV_IMAGE_CIF_ROWS)
1134                 height = STV_IMAGE_CIF_ROWS;
1135
1136         image_size = cpia2_match_video_size(width, height);
1137
1138         DBG("Config 410: width = %d, height = %d\n", width, height);
1139         DBG("Image size returned is %d\n", image_size);
1140         if (image_size >= 0) {
1141                 set_vw_size(cam, image_size);
1142                 width = cam->params.roi.width;
1143                 height = cam->params.roi.height;
1144
1145                 DBG("After set_vw_size(), width = %d, height = %d\n",
1146                     width, height);
1147                 if (width <= 176 && height <= 144) {
1148                         DBG("image type = VIDEOSIZE_QCIF\n");
1149                         image_type = VIDEOSIZE_QCIF;
1150                 }
1151                 else if (width <= 320 && height <= 240) {
1152                         DBG("image type = VIDEOSIZE_QVGA\n");
1153                         image_type = VIDEOSIZE_QVGA;
1154                 }
1155                 else {
1156                         DBG("image type = VIDEOSIZE_CIF\n");
1157                         image_type = VIDEOSIZE_CIF;
1158                 }
1159         } else {
1160                 ERR("ConfigSensor410 failed\n");
1161                 return -EINVAL;
1162         }
1163
1164         cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
1165         cmd.direction = TRANSFER_WRITE;
1166
1167         /* VC Format */
1168         cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
1169         if (image_type == VIDEOSIZE_CIF) {
1170                 cmd.buffer.registers[i++].value =
1171                     (u8) (CPIA2_VC_VC_FORMAT_UFIRST |
1172                           CPIA2_VC_VC_FORMAT_SHORTLINE);
1173         } else {
1174                 cmd.buffer.registers[i++].value =
1175                     (u8) CPIA2_VC_VC_FORMAT_UFIRST;
1176         }
1177
1178         /* VC Clocks */
1179         cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
1180         if (image_type == VIDEOSIZE_QCIF) {
1181                 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
1182                         cmd.buffer.registers[i++].value=
1183                                 (u8)(CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
1184                                      CPIA2_VC_VC_672_CLOCKS_SCALING |
1185                                      CPIA2_VC_VC_CLOCKS_LOGDIV2);
1186                         DBG("VC_Clocks (0xc4) should be B\n");
1187                 }
1188                 else {
1189                         cmd.buffer.registers[i++].value=
1190                                 (u8)(CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
1191                                      CPIA2_VC_VC_CLOCKS_LOGDIV2);
1192                 }
1193         } else {
1194                 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
1195                         cmd.buffer.registers[i++].value =
1196                            (u8) (CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
1197                                  CPIA2_VC_VC_CLOCKS_LOGDIV0);
1198                 }
1199                 else {
1200                         cmd.buffer.registers[i++].value =
1201                            (u8) (CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
1202                                  CPIA2_VC_VC_676_CLOCKS_SCALING |
1203                                  CPIA2_VC_VC_CLOCKS_LOGDIV0);
1204                 }
1205         }
1206         DBG("VC_Clocks (0xc4) = 0x%0X\n", cmd.buffer.registers[i-1].value);
1207
1208         /* Input reqWidth from VC */
1209         cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
1210         if (image_type == VIDEOSIZE_QCIF)
1211                 cmd.buffer.registers[i++].value =
1212                     (u8) (STV_IMAGE_QCIF_COLS / 4);
1213         else
1214                 cmd.buffer.registers[i++].value =
1215                     (u8) (STV_IMAGE_CIF_COLS / 4);
1216
1217         /* Timings */
1218         cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
1219         if (image_type == VIDEOSIZE_QCIF)
1220                 cmd.buffer.registers[i++].value = (u8) 0;
1221         else
1222                 cmd.buffer.registers[i++].value = (u8) 1;
1223
1224         cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
1225         if (image_type == VIDEOSIZE_QCIF)
1226                 cmd.buffer.registers[i++].value = (u8) 208;
1227         else
1228                 cmd.buffer.registers[i++].value = (u8) 160;
1229
1230         cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
1231         if (image_type == VIDEOSIZE_QCIF)
1232                 cmd.buffer.registers[i++].value = (u8) 0;
1233         else
1234                 cmd.buffer.registers[i++].value = (u8) 1;
1235
1236         cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
1237         if (image_type == VIDEOSIZE_QCIF)
1238                 cmd.buffer.registers[i++].value = (u8) 160;
1239         else
1240                 cmd.buffer.registers[i++].value = (u8) 64;
1241
1242         /* Output Image Size */
1243         cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
1244         cmd.buffer.registers[i++].value = cam->params.roi.width / 4;
1245
1246         cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
1247         cmd.buffer.registers[i++].value = cam->params.roi.height / 4;
1248
1249         /* Cropping */
1250         cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
1251         if (image_type == VIDEOSIZE_QCIF)
1252                 cmd.buffer.registers[i++].value =
1253                     (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
1254         else
1255                 cmd.buffer.registers[i++].value =
1256                     (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
1257
1258         cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
1259         if (image_type == VIDEOSIZE_QCIF)
1260                 cmd.buffer.registers[i++].value =
1261                     (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
1262         else
1263                 cmd.buffer.registers[i++].value =
1264                     (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
1265
1266         /* Scaling registers (defaults) */
1267         cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
1268         cmd.buffer.registers[i++].value = (u8) 0;
1269
1270         cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
1271         cmd.buffer.registers[i++].value = (u8) 0;
1272
1273         cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
1274         cmd.buffer.registers[i++].value = (u8) 31;
1275
1276         cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
1277         cmd.buffer.registers[i++].value = (u8) 31;
1278
1279         cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
1280         cmd.buffer.registers[i++].value = (u8) 0;
1281
1282         cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
1283         cmd.buffer.registers[i++].value = (u8) 0;
1284
1285         cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
1286         cmd.buffer.registers[i++].value = (u8) 0x81;    /* = 8/1 = 8 (HIBYTE/LOBYTE) */
1287
1288         cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
1289         cmd.buffer.registers[i++].value = (u8) 0x81;    /* = 8/1 = 8 (HIBYTE/LOBYTE) */
1290
1291         cmd.reg_count = i;
1292
1293         cpia2_send_command(cam, &cmd);
1294
1295         return i;
1296 }
1297
1298
1299 /******************************************************************************
1300  *
1301  *  config_sensor_500(cam)
1302  *
1303  *****************************************************************************/
1304 static int config_sensor_500(struct camera_data *cam,
1305                              int req_width, int req_height)
1306 {
1307         struct cpia2_command cmd;
1308         int i = 0;
1309         int image_size = VIDEOSIZE_CIF;
1310         int image_type = VIDEOSIZE_VGA;
1311         int width = req_width;
1312         int height = req_height;
1313         unsigned int device = cam->params.pnp_id.device_type;
1314
1315         image_size = cpia2_match_video_size(width, height);
1316
1317         if (width > STV_IMAGE_CIF_COLS || height > STV_IMAGE_CIF_ROWS)
1318                 image_type = VIDEOSIZE_VGA;
1319         else if (width > STV_IMAGE_QVGA_COLS || height > STV_IMAGE_QVGA_ROWS)
1320                 image_type = VIDEOSIZE_CIF;
1321         else if (width > STV_IMAGE_QCIF_COLS || height > STV_IMAGE_QCIF_ROWS)
1322                 image_type = VIDEOSIZE_QVGA;
1323         else
1324                 image_type = VIDEOSIZE_QCIF;
1325
1326         if (image_size >= 0) {
1327                 set_vw_size(cam, image_size);
1328                 width = cam->params.roi.width;
1329                 height = cam->params.roi.height;
1330         } else {
1331                 ERR("ConfigSensor500 failed\n");
1332                 return -EINVAL;
1333         }
1334
1335         DBG("image_size = %d, width = %d, height = %d, type = %d\n",
1336             image_size, width, height, image_type);
1337
1338         cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
1339         cmd.direction = TRANSFER_WRITE;
1340         i = 0;
1341
1342         /* VC Format */
1343         cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
1344         cmd.buffer.registers[i].value = (u8) CPIA2_VC_VC_FORMAT_UFIRST;
1345         if (image_type == VIDEOSIZE_QCIF)
1346                 cmd.buffer.registers[i].value |= (u8) CPIA2_VC_VC_FORMAT_DECIMATING;
1347         i++;
1348
1349         /* VC Clocks */
1350         cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
1351         if (device == DEVICE_STV_672) {
1352                 if (image_type == VIDEOSIZE_VGA)
1353                         cmd.buffer.registers[i].value =
1354                                 (u8)CPIA2_VC_VC_CLOCKS_LOGDIV1;
1355                 else
1356                         cmd.buffer.registers[i].value =
1357                                 (u8)(CPIA2_VC_VC_672_CLOCKS_SCALING |
1358                                      CPIA2_VC_VC_CLOCKS_LOGDIV3);
1359         } else {
1360                 if (image_type == VIDEOSIZE_VGA)
1361                         cmd.buffer.registers[i].value =
1362                                 (u8)CPIA2_VC_VC_CLOCKS_LOGDIV0;
1363                 else
1364                         cmd.buffer.registers[i].value =
1365                                 (u8)(CPIA2_VC_VC_676_CLOCKS_SCALING |
1366                                      CPIA2_VC_VC_CLOCKS_LOGDIV2);
1367         }
1368         i++;
1369
1370         DBG("VC_CLOCKS = 0x%X\n", cmd.buffer.registers[i-1].value);
1371
1372         /* Input width from VP */
1373         cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
1374         if (image_type == VIDEOSIZE_VGA)
1375                 cmd.buffer.registers[i].value =
1376                     (u8) (STV_IMAGE_VGA_COLS / 4);
1377         else
1378                 cmd.buffer.registers[i].value =
1379                     (u8) (STV_IMAGE_QVGA_COLS / 4);
1380         i++;
1381         DBG("Input width = %d\n", cmd.buffer.registers[i-1].value);
1382
1383         /* Timings */
1384         cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
1385         if (image_type == VIDEOSIZE_VGA)
1386                 cmd.buffer.registers[i++].value = (u8) 2;
1387         else
1388                 cmd.buffer.registers[i++].value = (u8) 1;
1389
1390         cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
1391         if (image_type == VIDEOSIZE_VGA)
1392                 cmd.buffer.registers[i++].value = (u8) 250;
1393         else if (image_type == VIDEOSIZE_QVGA)
1394                 cmd.buffer.registers[i++].value = (u8) 125;
1395         else
1396                 cmd.buffer.registers[i++].value = (u8) 160;
1397
1398         cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
1399         if (image_type == VIDEOSIZE_VGA)
1400                 cmd.buffer.registers[i++].value = (u8) 2;
1401         else
1402                 cmd.buffer.registers[i++].value = (u8) 1;
1403
1404         cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
1405         if (image_type == VIDEOSIZE_VGA)
1406                 cmd.buffer.registers[i++].value = (u8) 12;
1407         else if (image_type == VIDEOSIZE_QVGA)
1408                 cmd.buffer.registers[i++].value = (u8) 64;
1409         else
1410                 cmd.buffer.registers[i++].value = (u8) 6;
1411
1412         /* Output Image Size */
1413         cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
1414         if (image_type == VIDEOSIZE_QCIF)
1415                 cmd.buffer.registers[i++].value = STV_IMAGE_CIF_COLS  / 4;
1416         else
1417                 cmd.buffer.registers[i++].value = width / 4;
1418
1419         cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
1420         if (image_type == VIDEOSIZE_QCIF)
1421                 cmd.buffer.registers[i++].value = STV_IMAGE_CIF_ROWS  / 4;
1422         else
1423                 cmd.buffer.registers[i++].value = height / 4;
1424
1425         /* Cropping */
1426         cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
1427         if (image_type == VIDEOSIZE_VGA)
1428                 cmd.buffer.registers[i++].value =
1429                     (u8) (((STV_IMAGE_VGA_COLS / 4) - (width / 4)) / 2);
1430         else if (image_type == VIDEOSIZE_QVGA)
1431                 cmd.buffer.registers[i++].value =
1432                     (u8) (((STV_IMAGE_QVGA_COLS / 4) - (width / 4)) / 2);
1433         else if (image_type == VIDEOSIZE_CIF)
1434                 cmd.buffer.registers[i++].value =
1435                     (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
1436         else /*if (image_type == VIDEOSIZE_QCIF)*/
1437                 cmd.buffer.registers[i++].value =
1438                         (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
1439
1440         cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
1441         if (image_type == VIDEOSIZE_VGA)
1442                 cmd.buffer.registers[i++].value =
1443                     (u8) (((STV_IMAGE_VGA_ROWS / 4) - (height / 4)) / 2);
1444         else if (image_type == VIDEOSIZE_QVGA)
1445                 cmd.buffer.registers[i++].value =
1446                     (u8) (((STV_IMAGE_QVGA_ROWS / 4) - (height / 4)) / 2);
1447         else if (image_type == VIDEOSIZE_CIF)
1448                 cmd.buffer.registers[i++].value =
1449                     (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
1450         else /*if (image_type == VIDEOSIZE_QCIF)*/
1451                 cmd.buffer.registers[i++].value =
1452                     (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
1453
1454         /* Scaling registers (defaults) */
1455         cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
1456         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1457                 cmd.buffer.registers[i++].value = (u8) 36;
1458         else
1459                 cmd.buffer.registers[i++].value = (u8) 0;
1460
1461         cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
1462         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1463                 cmd.buffer.registers[i++].value = (u8) 32;
1464         else
1465                 cmd.buffer.registers[i++].value = (u8) 0;
1466
1467         cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
1468         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1469                 cmd.buffer.registers[i++].value = (u8) 26;
1470         else
1471                 cmd.buffer.registers[i++].value = (u8) 31;
1472
1473         cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
1474         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1475                 cmd.buffer.registers[i++].value = (u8) 21;
1476         else
1477                 cmd.buffer.registers[i++].value = (u8) 31;
1478
1479         cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
1480         cmd.buffer.registers[i++].value = (u8) 0;
1481
1482         cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
1483         cmd.buffer.registers[i++].value = (u8) 0;
1484
1485         cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
1486         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1487                 cmd.buffer.registers[i++].value = (u8) 0x2B;    /* 2/11 */
1488         else
1489                 cmd.buffer.registers[i++].value = (u8) 0x81;    /* 8/1 */
1490
1491         cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
1492         if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1493                 cmd.buffer.registers[i++].value = (u8) 0x13;    /* 1/3 */
1494         else
1495                 cmd.buffer.registers[i++].value = (u8) 0x81;    /* 8/1 */
1496
1497         cmd.reg_count = i;
1498
1499         cpia2_send_command(cam, &cmd);
1500
1501         return i;
1502 }
1503
1504
1505 /******************************************************************************
1506  *
1507  *  setallproperties
1508  *
1509  *  This sets all user changeable properties to the values in cam->params.
1510  *****************************************************************************/
1511 int set_all_properties(struct camera_data *cam)
1512 {
1513         /**
1514          * Don't set target_kb here, it will be set later.
1515          * framerate and user_mode were already set (set_default_user_mode).
1516          **/
1517
1518         cpia2_set_color_params(cam);
1519
1520         cpia2_usb_change_streaming_alternate(cam,
1521                                           cam->params.camera_state.stream_mode);
1522
1523         cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
1524                          cam->params.vp_params.user_effects);
1525
1526         cpia2_set_flicker_mode(cam,
1527                                cam->params.flicker_control.flicker_mode_req);
1528
1529         cpia2_do_command(cam,
1530                          CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
1531                          TRANSFER_WRITE, cam->params.vp_params.gpio_direction);
1532         cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, TRANSFER_WRITE,
1533                          cam->params.vp_params.gpio_data);
1534
1535         wake_system(cam);
1536
1537         set_lowlight_boost(cam);
1538
1539         return 0;
1540 }
1541
1542 /******************************************************************************
1543  *
1544  *  cpia2_save_camera_state
1545  *
1546  *****************************************************************************/
1547 void cpia2_save_camera_state(struct camera_data *cam)
1548 {
1549         get_color_params(cam);
1550         cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1551         cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, TRANSFER_READ,
1552                          0);
1553         cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DATA, TRANSFER_READ, 0);
1554         /* Don't get framerate or target_kb. Trust the values we already have */
1555 }
1556
1557 /******************************************************************************
1558  *
1559  *  get_color_params
1560  *
1561  *****************************************************************************/
1562 void get_color_params(struct camera_data *cam)
1563 {
1564         cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, TRANSFER_READ, 0);
1565         cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, TRANSFER_READ, 0);
1566         cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, TRANSFER_READ, 0);
1567 }
1568
1569 /******************************************************************************
1570  *
1571  *  cpia2_set_color_params
1572  *
1573  *****************************************************************************/
1574 void cpia2_set_color_params(struct camera_data *cam)
1575 {
1576         DBG("Setting color params\n");
1577         cpia2_set_brightness(cam, cam->params.color_params.brightness);
1578         cpia2_set_contrast(cam, cam->params.color_params.contrast);
1579         cpia2_set_saturation(cam, cam->params.color_params.saturation);
1580 }
1581
1582 /******************************************************************************
1583  *
1584  *  cpia2_set_flicker_mode
1585  *
1586  *****************************************************************************/
1587 int cpia2_set_flicker_mode(struct camera_data *cam, int mode)
1588 {
1589         unsigned char cam_reg;
1590         int err = 0;
1591
1592         if(cam->params.pnp_id.device_type != DEVICE_STV_672)
1593                 return -EINVAL;
1594
1595         /* Set the appropriate bits in FLICKER_MODES, preserving the rest */
1596         if((err = cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES,
1597                                    TRANSFER_READ, 0)))
1598                 return err;
1599         cam_reg = cam->params.flicker_control.cam_register;
1600
1601         switch(mode) {
1602         case NEVER_FLICKER:
1603                 cam_reg |= CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1604                 cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
1605                 break;
1606         case FLICKER_60:
1607                 cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1608                 cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
1609                 break;
1610         case FLICKER_50:
1611                 cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1612                 cam_reg |= CPIA2_VP_FLICKER_MODES_50HZ;
1613                 break;
1614         default:
1615                 return -EINVAL;
1616         }
1617
1618         if((err = cpia2_do_command(cam, CPIA2_CMD_SET_FLICKER_MODES,
1619                                    TRANSFER_WRITE, cam_reg)))
1620                 return err;
1621
1622         /* Set the appropriate bits in EXP_MODES, preserving the rest */
1623         if((err = cpia2_do_command(cam, CPIA2_CMD_GET_VP_EXP_MODES,
1624                                    TRANSFER_READ, 0)))
1625                 return err;
1626         cam_reg = cam->params.vp_params.exposure_modes;
1627
1628         if (mode == NEVER_FLICKER) {
1629                 cam_reg |= CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
1630         } else {
1631                 cam_reg &= ~CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
1632         }
1633
1634         if((err = cpia2_do_command(cam, CPIA2_CMD_SET_VP_EXP_MODES,
1635                                    TRANSFER_WRITE, cam_reg)))
1636                 return err;
1637
1638         if((err = cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4,
1639                                    TRANSFER_WRITE, 1)))
1640                 return err;
1641
1642         switch(mode) {
1643         case NEVER_FLICKER:
1644                 cam->params.flicker_control.flicker_mode_req = mode;
1645                 break;
1646         case FLICKER_60:
1647                 cam->params.flicker_control.flicker_mode_req = mode;
1648                 cam->params.flicker_control.mains_frequency = 60;
1649                 break;
1650         case FLICKER_50:
1651                 cam->params.flicker_control.flicker_mode_req = mode;
1652                 cam->params.flicker_control.mains_frequency = 50;
1653                 break;
1654         default:
1655                 err = -EINVAL;
1656         }
1657
1658         return err;
1659 }
1660
1661 /******************************************************************************
1662  *
1663  *  cpia2_set_property_flip
1664  *
1665  *****************************************************************************/
1666 void cpia2_set_property_flip(struct camera_data *cam, int prop_val)
1667 {
1668         unsigned char cam_reg;
1669
1670         cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1671         cam_reg = cam->params.vp_params.user_effects;
1672
1673         if (prop_val)
1674         {
1675                 cam_reg |= CPIA2_VP_USER_EFFECTS_FLIP;
1676         }
1677         else
1678         {
1679                 cam_reg &= ~CPIA2_VP_USER_EFFECTS_FLIP;
1680         }
1681         cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
1682                          cam_reg);
1683 }
1684
1685 /******************************************************************************
1686  *
1687  *  cpia2_set_property_mirror
1688  *
1689  *****************************************************************************/
1690 void cpia2_set_property_mirror(struct camera_data *cam, int prop_val)
1691 {
1692         unsigned char cam_reg;
1693
1694         cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1695         cam_reg = cam->params.vp_params.user_effects;
1696
1697         if (prop_val)
1698         {
1699                 cam_reg |= CPIA2_VP_USER_EFFECTS_MIRROR;
1700         }
1701         else
1702         {
1703                 cam_reg &= ~CPIA2_VP_USER_EFFECTS_MIRROR;
1704         }
1705         cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
1706                          cam_reg);
1707 }
1708
1709 /******************************************************************************
1710  *
1711  *  set_target_kb
1712  *
1713  *  The new Target KB is set in cam->params.vc_params.target_kb and
1714  *  activates on reset.
1715  *****************************************************************************/
1716
1717 int cpia2_set_target_kb(struct camera_data *cam, unsigned char value)
1718 {
1719         DBG("Requested target_kb = %d\n", value);
1720         if (value != cam->params.vc_params.target_kb) {
1721
1722                 cpia2_usb_stream_pause(cam);
1723
1724                 /* reset camera for new target_kb */
1725                 cam->params.vc_params.target_kb = value;
1726                 cpia2_reset_camera(cam);
1727
1728                 cpia2_usb_stream_resume(cam);
1729         }
1730
1731         return 0;
1732 }
1733
1734 /******************************************************************************
1735  *
1736  *  cpia2_set_gpio
1737  *
1738  *****************************************************************************/
1739 int cpia2_set_gpio(struct camera_data *cam, unsigned char setting)
1740 {
1741         int ret;
1742
1743         /* Set the microport direction (register 0x90, should be defined
1744          * already) to 1 (user output), and set the microport data (0x91) to
1745          * the value in the ioctl argument.
1746          */
1747
1748         ret = cpia2_do_command(cam,
1749                                CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
1750                                CPIA2_VC_MP_DIR_OUTPUT,
1751                                255);
1752         if (ret < 0)
1753                 return ret;
1754         cam->params.vp_params.gpio_direction = 255;
1755
1756         ret = cpia2_do_command(cam,
1757                                CPIA2_CMD_SET_VC_MP_GPIO_DATA,
1758                                CPIA2_VC_MP_DIR_OUTPUT,
1759                                setting);
1760         if (ret < 0)
1761                 return ret;
1762         cam->params.vp_params.gpio_data = setting;
1763
1764         return 0;
1765 }
1766
1767 /******************************************************************************
1768  *
1769  *  cpia2_set_fps
1770  *
1771  *****************************************************************************/
1772 int cpia2_set_fps(struct camera_data *cam, int framerate)
1773 {
1774         int retval;
1775
1776         switch(framerate) {
1777                 case CPIA2_VP_FRAMERATE_30:
1778                 case CPIA2_VP_FRAMERATE_25:
1779                         if(cam->params.pnp_id.device_type == DEVICE_STV_672 &&
1780                            cam->params.version.sensor_flags ==
1781                                                     CPIA2_VP_SENSOR_FLAGS_500) {
1782                                 return -EINVAL;
1783                         }
1784                         /* Fall through */
1785                 case CPIA2_VP_FRAMERATE_15:
1786                 case CPIA2_VP_FRAMERATE_12_5:
1787                 case CPIA2_VP_FRAMERATE_7_5:
1788                 case CPIA2_VP_FRAMERATE_6_25:
1789                         break;
1790                 default:
1791                         return -EINVAL;
1792         }
1793
1794         if (cam->params.pnp_id.device_type == DEVICE_STV_672 &&
1795             framerate == CPIA2_VP_FRAMERATE_15)
1796                 framerate = 0; /* Work around bug in VP4 */
1797
1798         retval = cpia2_do_command(cam,
1799                                  CPIA2_CMD_FRAMERATE_REQ,
1800                                  TRANSFER_WRITE,
1801                                  framerate);
1802
1803         if(retval == 0)
1804                 cam->params.vp_params.frame_rate = framerate;
1805
1806         return retval;
1807 }
1808
1809 /******************************************************************************
1810  *
1811  *  cpia2_set_brightness
1812  *
1813  *****************************************************************************/
1814 void cpia2_set_brightness(struct camera_data *cam, unsigned char value)
1815 {
1816         /***
1817          * Don't let the register be set to zero - bug in VP4 - flash of full
1818          * brightness
1819          ***/
1820         if (cam->params.pnp_id.device_type == DEVICE_STV_672 && value == 0)
1821                 value++;
1822         DBG("Setting brightness to %d (0x%0x)\n", value, value);
1823         cpia2_do_command(cam,CPIA2_CMD_SET_VP_BRIGHTNESS, TRANSFER_WRITE,value);
1824 }
1825
1826 /******************************************************************************
1827  *
1828  *  cpia2_set_contrast
1829  *
1830  *****************************************************************************/
1831 void cpia2_set_contrast(struct camera_data *cam, unsigned char value)
1832 {
1833         DBG("Setting contrast to %d (0x%0x)\n", value, value);
1834         cam->params.color_params.contrast = value;
1835         cpia2_do_command(cam, CPIA2_CMD_SET_CONTRAST, TRANSFER_WRITE, value);
1836 }
1837
1838 /******************************************************************************
1839  *
1840  *  cpia2_set_saturation
1841  *
1842  *****************************************************************************/
1843 void cpia2_set_saturation(struct camera_data *cam, unsigned char value)
1844 {
1845         DBG("Setting saturation to %d (0x%0x)\n", value, value);
1846         cam->params.color_params.saturation = value;
1847         cpia2_do_command(cam,CPIA2_CMD_SET_VP_SATURATION, TRANSFER_WRITE,value);
1848 }
1849
1850 /******************************************************************************
1851  *
1852  *  wake_system
1853  *
1854  *****************************************************************************/
1855 void wake_system(struct camera_data *cam)
1856 {
1857         cpia2_do_command(cam, CPIA2_CMD_SET_WAKEUP, TRANSFER_WRITE, 0);
1858 }
1859
1860 /******************************************************************************
1861  *
1862  *  set_lowlight_boost
1863  *
1864  *  Valid for STV500 sensor only
1865  *****************************************************************************/
1866 void set_lowlight_boost(struct camera_data *cam)
1867 {
1868         struct cpia2_command cmd;
1869
1870         if (cam->params.pnp_id.device_type != DEVICE_STV_672 ||
1871             cam->params.version.sensor_flags != CPIA2_VP_SENSOR_FLAGS_500)
1872                 return;
1873
1874         cmd.direction = TRANSFER_WRITE;
1875         cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
1876         cmd.reg_count = 3;
1877         cmd.start = CPIA2_VP_RAM_ADDR_H;
1878
1879         cmd.buffer.block_data[0] = 0;   /* High byte of address to write to */
1880         cmd.buffer.block_data[1] = 0x59;        /* Low byte of address to write to */
1881         cmd.buffer.block_data[2] = 0;   /* High byte of data to write */
1882
1883         cpia2_send_command(cam, &cmd);
1884
1885         if (cam->params.vp_params.lowlight_boost) {
1886                 cmd.buffer.block_data[0] = 0x02;        /* Low byte data to write */
1887         } else {
1888                 cmd.buffer.block_data[0] = 0x06;
1889         }
1890         cmd.start = CPIA2_VP_RAM_DATA;
1891         cmd.reg_count = 1;
1892         cpia2_send_command(cam, &cmd);
1893
1894         /* Rehash the VP4 values */
1895         cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4, TRANSFER_WRITE, 1);
1896 }
1897
1898 /******************************************************************************
1899  *
1900  *  cpia2_set_format
1901  *
1902  *  Assumes that new size is already set in param struct.
1903  *****************************************************************************/
1904 void cpia2_set_format(struct camera_data *cam)
1905 {
1906         cam->flush = true;
1907
1908         cpia2_usb_stream_pause(cam);
1909
1910         /* reset camera to new size */
1911         cpia2_set_low_power(cam);
1912         cpia2_reset_camera(cam);
1913         cam->flush = false;
1914
1915         cpia2_dbg_dump_registers(cam);
1916
1917         cpia2_usb_stream_resume(cam);
1918 }
1919
1920 /******************************************************************************
1921  *
1922  * cpia2_dbg_dump_registers
1923  *
1924  *****************************************************************************/
1925 void cpia2_dbg_dump_registers(struct camera_data *cam)
1926 {
1927 #ifdef _CPIA2_DEBUG_
1928         struct cpia2_command cmd;
1929
1930         if (!(debugs_on & DEBUG_DUMP_REGS))
1931                 return;
1932
1933         cmd.direction = TRANSFER_READ;
1934
1935         /* Start with bank 0 (SYSTEM) */
1936         cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
1937         cmd.reg_count = 3;
1938         cmd.start = 0;
1939         cpia2_send_command(cam, &cmd);
1940         printk(KERN_DEBUG "System Device Hi      = 0x%X\n",
1941                cmd.buffer.block_data[0]);
1942         printk(KERN_DEBUG "System Device Lo      = 0x%X\n",
1943                cmd.buffer.block_data[1]);
1944         printk(KERN_DEBUG "System_system control = 0x%X\n",
1945                cmd.buffer.block_data[2]);
1946
1947         /* Bank 1 (VC) */
1948         cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
1949         cmd.reg_count = 4;
1950         cmd.start = 0x80;
1951         cpia2_send_command(cam, &cmd);
1952         printk(KERN_DEBUG "ASIC_ID       = 0x%X\n",
1953                cmd.buffer.block_data[0]);
1954         printk(KERN_DEBUG "ASIC_REV      = 0x%X\n",
1955                cmd.buffer.block_data[1]);
1956         printk(KERN_DEBUG "PW_CONTRL     = 0x%X\n",
1957                cmd.buffer.block_data[2]);
1958         printk(KERN_DEBUG "WAKEUP        = 0x%X\n",
1959                cmd.buffer.block_data[3]);
1960
1961         cmd.start = 0xA0;       /* ST_CTRL */
1962         cmd.reg_count = 1;
1963         cpia2_send_command(cam, &cmd);
1964         printk(KERN_DEBUG "Stream ctrl   = 0x%X\n",
1965                cmd.buffer.block_data[0]);
1966
1967         cmd.start = 0xA4;       /* Stream status */
1968         cpia2_send_command(cam, &cmd);
1969         printk(KERN_DEBUG "Stream status = 0x%X\n",
1970                cmd.buffer.block_data[0]);
1971
1972         cmd.start = 0xA8;       /* USB status */
1973         cmd.reg_count = 3;
1974         cpia2_send_command(cam, &cmd);
1975         printk(KERN_DEBUG "USB_CTRL      = 0x%X\n",
1976                cmd.buffer.block_data[0]);
1977         printk(KERN_DEBUG "USB_STRM      = 0x%X\n",
1978                cmd.buffer.block_data[1]);
1979         printk(KERN_DEBUG "USB_STATUS    = 0x%X\n",
1980                cmd.buffer.block_data[2]);
1981
1982         cmd.start = 0xAF;       /* USB settings */
1983         cmd.reg_count = 1;
1984         cpia2_send_command(cam, &cmd);
1985         printk(KERN_DEBUG "USB settings  = 0x%X\n",
1986                cmd.buffer.block_data[0]);
1987
1988         cmd.start = 0xC0;       /* VC stuff */
1989         cmd.reg_count = 26;
1990         cpia2_send_command(cam, &cmd);
1991         printk(KERN_DEBUG "VC Control    = 0x%0X\n",
1992                cmd.buffer.block_data[0]);
1993         printk(KERN_DEBUG "VC Format     = 0x%0X\n",
1994                cmd.buffer.block_data[3]);
1995         printk(KERN_DEBUG "VC Clocks     = 0x%0X\n",
1996                cmd.buffer.block_data[4]);
1997         printk(KERN_DEBUG "VC IHSize     = 0x%0X\n",
1998                cmd.buffer.block_data[5]);
1999         printk(KERN_DEBUG "VC Xlim Hi    = 0x%0X\n",
2000                cmd.buffer.block_data[6]);
2001         printk(KERN_DEBUG "VC XLim Lo    = 0x%0X\n",
2002                cmd.buffer.block_data[7]);
2003         printk(KERN_DEBUG "VC YLim Hi    = 0x%0X\n",
2004                cmd.buffer.block_data[8]);
2005         printk(KERN_DEBUG "VC YLim Lo    = 0x%0X\n",
2006                cmd.buffer.block_data[9]);
2007         printk(KERN_DEBUG "VC OHSize     = 0x%0X\n",
2008                cmd.buffer.block_data[10]);
2009         printk(KERN_DEBUG "VC OVSize     = 0x%0X\n",
2010                cmd.buffer.block_data[11]);
2011         printk(KERN_DEBUG "VC HCrop      = 0x%0X\n",
2012                cmd.buffer.block_data[12]);
2013         printk(KERN_DEBUG "VC VCrop      = 0x%0X\n",
2014                cmd.buffer.block_data[13]);
2015         printk(KERN_DEBUG "VC HPhase     = 0x%0X\n",
2016                cmd.buffer.block_data[14]);
2017         printk(KERN_DEBUG "VC VPhase     = 0x%0X\n",
2018                cmd.buffer.block_data[15]);
2019         printk(KERN_DEBUG "VC HIspan     = 0x%0X\n",
2020                cmd.buffer.block_data[16]);
2021         printk(KERN_DEBUG "VC VIspan     = 0x%0X\n",
2022                cmd.buffer.block_data[17]);
2023         printk(KERN_DEBUG "VC HiCrop     = 0x%0X\n",
2024                cmd.buffer.block_data[18]);
2025         printk(KERN_DEBUG "VC ViCrop     = 0x%0X\n",
2026                cmd.buffer.block_data[19]);
2027         printk(KERN_DEBUG "VC HiFract    = 0x%0X\n",
2028                cmd.buffer.block_data[20]);
2029         printk(KERN_DEBUG "VC ViFract    = 0x%0X\n",
2030                cmd.buffer.block_data[21]);
2031         printk(KERN_DEBUG "VC JPeg Opt   = 0x%0X\n",
2032                cmd.buffer.block_data[22]);
2033         printk(KERN_DEBUG "VC Creep Per  = 0x%0X\n",
2034                cmd.buffer.block_data[23]);
2035         printk(KERN_DEBUG "VC User Sq.   = 0x%0X\n",
2036                cmd.buffer.block_data[24]);
2037         printk(KERN_DEBUG "VC Target KB  = 0x%0X\n",
2038                cmd.buffer.block_data[25]);
2039
2040         /*** VP ***/
2041         cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
2042         cmd.reg_count = 14;
2043         cmd.start = 0;
2044         cpia2_send_command(cam, &cmd);
2045
2046         printk(KERN_DEBUG "VP Dev Hi     = 0x%0X\n",
2047                cmd.buffer.block_data[0]);
2048         printk(KERN_DEBUG "VP Dev Lo     = 0x%0X\n",
2049                cmd.buffer.block_data[1]);
2050         printk(KERN_DEBUG "VP Sys State  = 0x%0X\n",
2051                cmd.buffer.block_data[2]);
2052         printk(KERN_DEBUG "VP Sys Ctrl   = 0x%0X\n",
2053                cmd.buffer.block_data[3]);
2054         printk(KERN_DEBUG "VP Sensor flg = 0x%0X\n",
2055                cmd.buffer.block_data[5]);
2056         printk(KERN_DEBUG "VP Sensor Rev = 0x%0X\n",
2057                cmd.buffer.block_data[6]);
2058         printk(KERN_DEBUG "VP Dev Config = 0x%0X\n",
2059                cmd.buffer.block_data[7]);
2060         printk(KERN_DEBUG "VP GPIO_DIR   = 0x%0X\n",
2061                cmd.buffer.block_data[8]);
2062         printk(KERN_DEBUG "VP GPIO_DATA  = 0x%0X\n",
2063                cmd.buffer.block_data[9]);
2064         printk(KERN_DEBUG "VP Ram ADDR H = 0x%0X\n",
2065                cmd.buffer.block_data[10]);
2066         printk(KERN_DEBUG "VP Ram ADDR L = 0x%0X\n",
2067                cmd.buffer.block_data[11]);
2068         printk(KERN_DEBUG "VP RAM Data   = 0x%0X\n",
2069                cmd.buffer.block_data[12]);
2070         printk(KERN_DEBUG "Do Call       = 0x%0X\n",
2071                cmd.buffer.block_data[13]);
2072
2073         if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
2074                 cmd.reg_count = 9;
2075                 cmd.start = 0x0E;
2076                 cpia2_send_command(cam, &cmd);
2077                 printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
2078                        cmd.buffer.block_data[0]);
2079                 printk(KERN_DEBUG "VP Patch Rev  = 0x%0X\n",
2080                        cmd.buffer.block_data[1]);
2081                 printk(KERN_DEBUG "VP Vid Mode   = 0x%0X\n",
2082                        cmd.buffer.block_data[2]);
2083                 printk(KERN_DEBUG "VP Framerate  = 0x%0X\n",
2084                        cmd.buffer.block_data[3]);
2085                 printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
2086                        cmd.buffer.block_data[4]);
2087                 printk(KERN_DEBUG "VP White Bal  = 0x%0X\n",
2088                        cmd.buffer.block_data[5]);
2089                 printk(KERN_DEBUG "VP WB thresh  = 0x%0X\n",
2090                        cmd.buffer.block_data[6]);
2091                 printk(KERN_DEBUG "VP Exp Modes  = 0x%0X\n",
2092                        cmd.buffer.block_data[7]);
2093                 printk(KERN_DEBUG "VP Exp Target = 0x%0X\n",
2094                        cmd.buffer.block_data[8]);
2095
2096                 cmd.reg_count = 1;
2097                 cmd.start = 0x1B;
2098                 cpia2_send_command(cam, &cmd);
2099                 printk(KERN_DEBUG "VP FlickerMds = 0x%0X\n",
2100                        cmd.buffer.block_data[0]);
2101         } else {
2102                 cmd.reg_count = 8 ;
2103                 cmd.start = 0x0E;
2104                 cpia2_send_command(cam, &cmd);
2105                 printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
2106                        cmd.buffer.block_data[0]);
2107                 printk(KERN_DEBUG "VP Patch Rev  = 0x%0X\n",
2108                        cmd.buffer.block_data[1]);
2109                 printk(KERN_DEBUG "VP Vid Mode   = 0x%0X\n",
2110                        cmd.buffer.block_data[5]);
2111                 printk(KERN_DEBUG "VP Framerate  = 0x%0X\n",
2112                        cmd.buffer.block_data[6]);
2113                 printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
2114                        cmd.buffer.block_data[7]);
2115
2116                 cmd.reg_count = 1;
2117                 cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
2118                 cpia2_send_command(cam, &cmd);
2119                 printk(KERN_DEBUG "VP5 Exp Target= 0x%0X\n",
2120                        cmd.buffer.block_data[0]);
2121
2122                 cmd.reg_count = 4;
2123                 cmd.start = 0x3A;
2124                 cpia2_send_command(cam, &cmd);
2125                 printk(KERN_DEBUG "VP5 MY Black  = 0x%0X\n",
2126                        cmd.buffer.block_data[0]);
2127                 printk(KERN_DEBUG "VP5 MCY Range = 0x%0X\n",
2128                        cmd.buffer.block_data[1]);
2129                 printk(KERN_DEBUG "VP5 MYCEILING = 0x%0X\n",
2130                        cmd.buffer.block_data[2]);
2131                 printk(KERN_DEBUG "VP5 MCUV Sat  = 0x%0X\n",
2132                        cmd.buffer.block_data[3]);
2133         }
2134 #endif
2135 }
2136
2137 /******************************************************************************
2138  *
2139  *  reset_camera_struct
2140  *
2141  *  Sets all values to the defaults
2142  *****************************************************************************/
2143 void reset_camera_struct(struct camera_data *cam)
2144 {
2145         /***
2146          * The following parameter values are the defaults from the register map.
2147          ***/
2148         cam->params.color_params.brightness = DEFAULT_BRIGHTNESS;
2149         cam->params.color_params.contrast = DEFAULT_CONTRAST;
2150         cam->params.color_params.saturation = DEFAULT_SATURATION;
2151         cam->params.vp_params.lowlight_boost = 0;
2152
2153         /* FlickerModes */
2154         cam->params.flicker_control.flicker_mode_req = NEVER_FLICKER;
2155         cam->params.flicker_control.mains_frequency = 60;
2156
2157         /* jpeg params */
2158         cam->params.compression.jpeg_options = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
2159         cam->params.compression.creep_period = 2;
2160         cam->params.compression.user_squeeze = 20;
2161         cam->params.compression.inhibit_htables = false;
2162
2163         /* gpio params */
2164         cam->params.vp_params.gpio_direction = 0;       /* write, the default safe mode */
2165         cam->params.vp_params.gpio_data = 0;
2166
2167         /* Target kb params */
2168         cam->params.vc_params.target_kb = DEFAULT_TARGET_KB;
2169
2170         /***
2171          * Set Sensor FPS as fast as possible.
2172          ***/
2173         if(cam->params.pnp_id.device_type == DEVICE_STV_672) {
2174                 if(cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500)
2175                         cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_15;
2176                 else
2177                         cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
2178         } else {
2179                 cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
2180         }
2181
2182         /***
2183          * Set default video mode as large as possible :
2184          * for vga sensor set to vga, for cif sensor set to CIF.
2185          ***/
2186         if (cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) {
2187                 cam->sensor_type = CPIA2_SENSOR_500;
2188                 cam->video_size = VIDEOSIZE_VGA;
2189                 cam->params.roi.width = STV_IMAGE_VGA_COLS;
2190                 cam->params.roi.height = STV_IMAGE_VGA_ROWS;
2191         } else {
2192                 cam->sensor_type = CPIA2_SENSOR_410;
2193                 cam->video_size = VIDEOSIZE_CIF;
2194                 cam->params.roi.width = STV_IMAGE_CIF_COLS;
2195                 cam->params.roi.height = STV_IMAGE_CIF_ROWS;
2196         }
2197
2198         /***
2199          * Fill in the v4l structures.  video_cap is filled in inside the VIDIOCCAP
2200          * Ioctl.  Here, just do the window and picture stucts.
2201          ***/
2202         cam->vp.palette = (u16) VIDEO_PALETTE_RGB24;    /* Is this right? */
2203         cam->vp.brightness = (u16) cam->params.color_params.brightness * 256;
2204         cam->vp.colour = (u16) cam->params.color_params.saturation * 256;
2205         cam->vp.contrast = (u16) cam->params.color_params.contrast * 256;
2206
2207         cam->vw.x = 0;
2208         cam->vw.y = 0;
2209         cam->vw.width = cam->params.roi.width;
2210         cam->vw.height = cam->params.roi.height;
2211         cam->vw.flags = 0;
2212         cam->vw.clipcount = 0;
2213
2214         return;
2215 }
2216
2217 /******************************************************************************
2218  *
2219  *  cpia2_init_camera_struct
2220  *
2221  *  Initializes camera struct, does not call reset to fill in defaults.
2222  *****************************************************************************/
2223 struct camera_data *cpia2_init_camera_struct(void)
2224 {
2225         struct camera_data *cam;
2226
2227         cam = kzalloc(sizeof(*cam), GFP_KERNEL);
2228
2229         if (!cam) {
2230                 ERR("couldn't kmalloc cpia2 struct\n");
2231                 return NULL;
2232         }
2233
2234
2235         cam->present = 1;
2236         mutex_init(&cam->busy_lock);
2237         init_waitqueue_head(&cam->wq_stream);
2238
2239         return cam;
2240 }
2241
2242 /******************************************************************************
2243  *
2244  *  cpia2_init_camera
2245  *
2246  *  Initializes camera.
2247  *****************************************************************************/
2248 int cpia2_init_camera(struct camera_data *cam)
2249 {
2250         DBG("Start\n");
2251
2252         cam->mmapped = false;
2253
2254         /* Get sensor and asic types before reset. */
2255         cpia2_set_high_power(cam);
2256         cpia2_get_version_info(cam);
2257         if (cam->params.version.asic_id != CPIA2_ASIC_672) {
2258                 ERR("Device IO error (asicID has incorrect value of 0x%X\n",
2259                     cam->params.version.asic_id);
2260                 return -ENODEV;
2261         }
2262
2263         /* Set GPIO direction and data to a safe state. */
2264         cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
2265                          TRANSFER_WRITE, 0);
2266         cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA,
2267                          TRANSFER_WRITE, 0);
2268
2269         /* resetting struct requires version info for sensor and asic types */
2270         reset_camera_struct(cam);
2271
2272         cpia2_set_low_power(cam);
2273
2274         DBG("End\n");
2275
2276         return 0;
2277 }
2278
2279 /******************************************************************************
2280  *
2281  *  cpia2_allocate_buffers
2282  *
2283  *****************************************************************************/
2284 int cpia2_allocate_buffers(struct camera_data *cam)
2285 {
2286         int i;
2287
2288         if(!cam->buffers) {
2289                 u32 size = cam->num_frames*sizeof(struct framebuf);
2290                 cam->buffers = kmalloc(size, GFP_KERNEL);
2291                 if(!cam->buffers) {
2292                         ERR("couldn't kmalloc frame buffer structures\n");
2293                         return -ENOMEM;
2294                 }
2295         }
2296
2297         if(!cam->frame_buffer) {
2298                 cam->frame_buffer = rvmalloc(cam->frame_size*cam->num_frames);
2299                 if (!cam->frame_buffer) {
2300                         ERR("couldn't vmalloc frame buffer data area\n");
2301                         kfree(cam->buffers);
2302                         cam->buffers = NULL;
2303                         return -ENOMEM;
2304                 }
2305         }
2306
2307         for(i=0; i<cam->num_frames-1; ++i) {
2308                 cam->buffers[i].next = &cam->buffers[i+1];
2309                 cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
2310                 cam->buffers[i].status = FRAME_EMPTY;
2311                 cam->buffers[i].length = 0;
2312                 cam->buffers[i].max_length = 0;
2313                 cam->buffers[i].num = i;
2314         }
2315         cam->buffers[i].next = cam->buffers;
2316         cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
2317         cam->buffers[i].status = FRAME_EMPTY;
2318         cam->buffers[i].length = 0;
2319         cam->buffers[i].max_length = 0;
2320         cam->buffers[i].num = i;
2321         cam->curbuff = cam->buffers;
2322         cam->workbuff = cam->curbuff->next;
2323         DBG("buffers=%p, curbuff=%p, workbuff=%p\n", cam->buffers, cam->curbuff,
2324             cam->workbuff);
2325         return 0;
2326 }
2327
2328 /******************************************************************************
2329  *
2330  *  cpia2_free_buffers
2331  *
2332  *****************************************************************************/
2333 void cpia2_free_buffers(struct camera_data *cam)
2334 {
2335         if(cam->buffers) {
2336                 kfree(cam->buffers);
2337                 cam->buffers = NULL;
2338         }
2339         if(cam->frame_buffer) {
2340                 rvfree(cam->frame_buffer, cam->frame_size*cam->num_frames);
2341                 cam->frame_buffer = NULL;
2342         }
2343 }
2344
2345 /******************************************************************************
2346  *
2347  *  cpia2_read
2348  *
2349  *****************************************************************************/
2350 long cpia2_read(struct camera_data *cam,
2351                 char __user *buf, unsigned long count, int noblock)
2352 {
2353         struct framebuf *frame;
2354         if (!count) {
2355                 return 0;
2356         }
2357
2358         if (!buf) {
2359                 ERR("%s: buffer NULL\n",__func__);
2360                 return -EINVAL;
2361         }
2362
2363         if (!cam) {
2364                 ERR("%s: Internal error, camera_data NULL!\n",__func__);
2365                 return -EINVAL;
2366         }
2367
2368         /* make this _really_ smp and multithread-safe */
2369         if (mutex_lock_interruptible(&cam->busy_lock))
2370                 return -ERESTARTSYS;
2371
2372         if (!cam->present) {
2373                 LOG("%s: camera removed\n",__func__);
2374                 mutex_unlock(&cam->busy_lock);
2375                 return 0;       /* EOF */
2376         }
2377
2378         if(!cam->streaming) {
2379                 /* Start streaming */
2380                 cpia2_usb_stream_start(cam,
2381                                        cam->params.camera_state.stream_mode);
2382         }
2383
2384         /* Copy cam->curbuff in case it changes while we're processing */
2385         frame = cam->curbuff;
2386         if (noblock && frame->status != FRAME_READY) {
2387                 mutex_unlock(&cam->busy_lock);
2388                 return -EAGAIN;
2389         }
2390
2391         if(frame->status != FRAME_READY) {
2392                 mutex_unlock(&cam->busy_lock);
2393                 wait_event_interruptible(cam->wq_stream,
2394                                !cam->present ||
2395                                (frame = cam->curbuff)->status == FRAME_READY);
2396                 if (signal_pending(current))
2397                         return -ERESTARTSYS;
2398                 /* make this _really_ smp and multithread-safe */
2399                 if (mutex_lock_interruptible(&cam->busy_lock)) {
2400                         return -ERESTARTSYS;
2401                 }
2402                 if(!cam->present) {
2403                         mutex_unlock(&cam->busy_lock);
2404                         return 0;
2405                 }
2406         }
2407
2408         /* copy data to user space */
2409         if (frame->length > count) {
2410                 mutex_unlock(&cam->busy_lock);
2411                 return -EFAULT;
2412         }
2413         if (copy_to_user(buf, frame->data, frame->length)) {
2414                 mutex_unlock(&cam->busy_lock);
2415                 return -EFAULT;
2416         }
2417
2418         count = frame->length;
2419
2420         frame->status = FRAME_EMPTY;
2421
2422         mutex_unlock(&cam->busy_lock);
2423         return count;
2424 }
2425
2426 /******************************************************************************
2427  *
2428  *  cpia2_poll
2429  *
2430  *****************************************************************************/
2431 unsigned int cpia2_poll(struct camera_data *cam, struct file *filp,
2432                         poll_table *wait)
2433 {
2434         unsigned int status=0;
2435
2436         if(!cam) {
2437                 ERR("%s: Internal error, camera_data not found!\n",__func__);
2438                 return POLLERR;
2439         }
2440
2441         mutex_lock(&cam->busy_lock);
2442
2443         if(!cam->present) {
2444                 mutex_unlock(&cam->busy_lock);
2445                 return POLLHUP;
2446         }
2447
2448         if(!cam->streaming) {
2449                 /* Start streaming */
2450                 cpia2_usb_stream_start(cam,
2451                                        cam->params.camera_state.stream_mode);
2452         }
2453
2454         mutex_unlock(&cam->busy_lock);
2455         poll_wait(filp, &cam->wq_stream, wait);
2456         mutex_lock(&cam->busy_lock);
2457
2458         if(!cam->present)
2459                 status = POLLHUP;
2460         else if(cam->curbuff->status == FRAME_READY)
2461                 status = POLLIN | POLLRDNORM;
2462
2463         mutex_unlock(&cam->busy_lock);
2464         return status;
2465 }
2466
2467 /******************************************************************************
2468  *
2469  *  cpia2_remap_buffer
2470  *
2471  *****************************************************************************/
2472 int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma)
2473 {
2474         const char *adr = (const char *)vma->vm_start;
2475         unsigned long size = vma->vm_end-vma->vm_start;
2476         unsigned long start_offset = vma->vm_pgoff << PAGE_SHIFT;
2477         unsigned long start = (unsigned long) adr;
2478         unsigned long page, pos;
2479
2480         if (!cam)
2481                 return -ENODEV;
2482
2483         DBG("mmap offset:%ld size:%ld\n", start_offset, size);
2484
2485         /* make this _really_ smp-safe */
2486         if (mutex_lock_interruptible(&cam->busy_lock))
2487                 return -ERESTARTSYS;
2488
2489         if (!cam->present) {
2490                 mutex_unlock(&cam->busy_lock);
2491                 return -ENODEV;
2492         }
2493
2494         if (size > cam->frame_size*cam->num_frames  ||
2495             (start_offset % cam->frame_size) != 0 ||
2496             (start_offset+size > cam->frame_size*cam->num_frames)) {
2497                 mutex_unlock(&cam->busy_lock);
2498                 return -EINVAL;
2499         }
2500
2501         pos = ((unsigned long) (cam->frame_buffer)) + start_offset;
2502         while (size > 0) {
2503                 page = kvirt_to_pa(pos);
2504                 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, PAGE_SIZE, PAGE_SHARED)) {
2505                         mutex_unlock(&cam->busy_lock);
2506                         return -EAGAIN;
2507                 }
2508                 start += PAGE_SIZE;
2509                 pos += PAGE_SIZE;
2510                 if (size > PAGE_SIZE)
2511                         size -= PAGE_SIZE;
2512                 else
2513                         size = 0;
2514         }
2515
2516         cam->mmapped = true;
2517         mutex_unlock(&cam->busy_lock);
2518         return 0;
2519 }
2520