drivers/media/video/cx88/cx88-blackbird.c

   1 /*
   2  *
   3  *  Support for a cx23416 mpeg encoder via cx2388x host port.
   4  *  "blackbird" reference design.
   5  *
   6  *    (c) 2004 Jelle Foks <jelle@foks.us>
   7  *    (c) 2004 Gerd Knorr <kraxel@bytesex.org>
   8  *
   9  *    (c) 2005-2006 Mauro Carvalho Chehab <mchehab@infradead.org>
  10  *        - video_ioctl2 conversion
  11  *
  12  *  Includes parts from the ivtv driver( http://ivtv.sourceforge.net/),
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #include <linux/module.h>
  30 #include <linux/init.h>
  31 #include <linux/fs.h>
  32 #include <linux/delay.h>
  33 #include <linux/device.h>
  34 #include <linux/firmware.h>
  35 #include <media/v4l2-common.h>
  36 #include <media/v4l2-ioctl.h>
  37 #include <media/cx2341x.h>
  38
  39 #include "cx88.h"
  40
  41 MODULE_DESCRIPTION("driver for cx2388x/cx23416 based mpeg encoder cards");
  42 MODULE_AUTHOR("Jelle Foks <jelle@foks.us>, Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  43 MODULE_LICENSE("GPL");
  44
  45 static unsigned int mpegbufs = 32;
  46 module_param(mpegbufs,int,0644);
  47 MODULE_PARM_DESC(mpegbufs,"number of mpeg buffers, range 2-32");
  48
  49 static unsigned int debug;
  50 module_param(debug,int,0644);
  51 MODULE_PARM_DESC(debug,"enable debug messages [blackbird]");
  52
  53 #define dprintk(level,fmt, arg...)      if (debug >= level) \
  54         printk(KERN_DEBUG "%s/2-bb: " fmt, dev->core->name , ## arg)
  55
  56
  57 /* ------------------------------------------------------------------ */
  58
  59 #define BLACKBIRD_FIRM_IMAGE_SIZE 376836
  60
  61 /* defines below are from ivtv-driver.h */
  62
  63 #define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
  64
  65 /* Firmware API commands */
  66 #define IVTV_API_STD_TIMEOUT 500
  67
  68 enum blackbird_capture_type {
  69         BLACKBIRD_MPEG_CAPTURE,
  70         BLACKBIRD_RAW_CAPTURE,
  71         BLACKBIRD_RAW_PASSTHRU_CAPTURE
  72 };
  73 enum blackbird_capture_bits {
  74         BLACKBIRD_RAW_BITS_NONE             = 0x00,
  75         BLACKBIRD_RAW_BITS_YUV_CAPTURE      = 0x01,
  76         BLACKBIRD_RAW_BITS_PCM_CAPTURE      = 0x02,
  77         BLACKBIRD_RAW_BITS_VBI_CAPTURE      = 0x04,
  78         BLACKBIRD_RAW_BITS_PASSTHRU_CAPTURE = 0x08,
  79         BLACKBIRD_RAW_BITS_TO_HOST_CAPTURE  = 0x10
  80 };
  81 enum blackbird_capture_end {
  82         BLACKBIRD_END_AT_GOP, /* stop at the end of gop, generate irq */
  83         BLACKBIRD_END_NOW, /* stop immediately, no irq */
  84 };
  85 enum blackbird_framerate {
  86         BLACKBIRD_FRAMERATE_NTSC_30, /* NTSC: 30fps */
  87         BLACKBIRD_FRAMERATE_PAL_25   /* PAL: 25fps */
  88 };
  89 enum blackbird_stream_port {
  90         BLACKBIRD_OUTPUT_PORT_MEMORY,
  91         BLACKBIRD_OUTPUT_PORT_STREAMING,
  92         BLACKBIRD_OUTPUT_PORT_SERIAL
  93 };
  94 enum blackbird_data_xfer_status {
  95         BLACKBIRD_MORE_BUFFERS_FOLLOW,
  96         BLACKBIRD_LAST_BUFFER,
  97 };
  98 enum blackbird_picture_mask {
  99         BLACKBIRD_PICTURE_MASK_NONE,
 100         BLACKBIRD_PICTURE_MASK_I_FRAMES,
 101         BLACKBIRD_PICTURE_MASK_I_P_FRAMES = 0x3,
 102         BLACKBIRD_PICTURE_MASK_ALL_FRAMES = 0x7,
 103 };
 104 enum blackbird_vbi_mode_bits {
 105         BLACKBIRD_VBI_BITS_SLICED,
 106         BLACKBIRD_VBI_BITS_RAW,
 107 };
 108 enum blackbird_vbi_insertion_bits {
 109         BLACKBIRD_VBI_BITS_INSERT_IN_XTENSION_USR_DATA,
 110         BLACKBIRD_VBI_BITS_INSERT_IN_PRIVATE_PACKETS = 0x1 << 1,
 111         BLACKBIRD_VBI_BITS_SEPARATE_STREAM = 0x2 << 1,
 112         BLACKBIRD_VBI_BITS_SEPARATE_STREAM_USR_DATA = 0x4 << 1,
 113         BLACKBIRD_VBI_BITS_SEPARATE_STREAM_PRV_DATA = 0x5 << 1,
 114 };
 115 enum blackbird_dma_unit {
 116         BLACKBIRD_DMA_BYTES,
 117         BLACKBIRD_DMA_FRAMES,
 118 };
 119 enum blackbird_dma_transfer_status_bits {
 120         BLACKBIRD_DMA_TRANSFER_BITS_DONE = 0x01,
 121         BLACKBIRD_DMA_TRANSFER_BITS_ERROR = 0x04,
 122         BLACKBIRD_DMA_TRANSFER_BITS_LL_ERROR = 0x10,
 123 };
 124 enum blackbird_pause {
 125         BLACKBIRD_PAUSE_ENCODING,
 126         BLACKBIRD_RESUME_ENCODING,
 127 };
 128 enum blackbird_copyright {
 129         BLACKBIRD_COPYRIGHT_OFF,
 130         BLACKBIRD_COPYRIGHT_ON,
 131 };
 132 enum blackbird_notification_type {
 133         BLACKBIRD_NOTIFICATION_REFRESH,
 134 };
 135 enum blackbird_notification_status {
 136         BLACKBIRD_NOTIFICATION_OFF,
 137         BLACKBIRD_NOTIFICATION_ON,
 138 };
 139 enum blackbird_notification_mailbox {
 140         BLACKBIRD_NOTIFICATION_NO_MAILBOX = -1,
 141 };
 142 enum blackbird_field1_lines {
 143         BLACKBIRD_FIELD1_SAA7114 = 0x00EF, /* 239 */
 144         BLACKBIRD_FIELD1_SAA7115 = 0x00F0, /* 240 */
 145         BLACKBIRD_FIELD1_MICRONAS = 0x0105, /* 261 */
 146 };
 147 enum blackbird_field2_lines {
 148         BLACKBIRD_FIELD2_SAA7114 = 0x00EF, /* 239 */
 149         BLACKBIRD_FIELD2_SAA7115 = 0x00F0, /* 240 */
 150         BLACKBIRD_FIELD2_MICRONAS = 0x0106, /* 262 */
 151 };
 152 enum blackbird_custom_data_type {
 153         BLACKBIRD_CUSTOM_EXTENSION_USR_DATA,
 154         BLACKBIRD_CUSTOM_PRIVATE_PACKET,
 155 };
 156 enum blackbird_mute {
 157         BLACKBIRD_UNMUTE,
 158         BLACKBIRD_MUTE,
 159 };
 160 enum blackbird_mute_video_mask {
 161         BLACKBIRD_MUTE_VIDEO_V_MASK = 0x0000FF00,
 162         BLACKBIRD_MUTE_VIDEO_U_MASK = 0x00FF0000,
 163         BLACKBIRD_MUTE_VIDEO_Y_MASK = 0xFF000000,
 164 };
 165 enum blackbird_mute_video_shift {
 166         BLACKBIRD_MUTE_VIDEO_V_SHIFT = 8,
 167         BLACKBIRD_MUTE_VIDEO_U_SHIFT = 16,
 168         BLACKBIRD_MUTE_VIDEO_Y_SHIFT = 24,
 169 };
 170
 171 /* Registers */
 172 #define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8 /*| IVTV_REG_OFFSET*/)
 173 #define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC /*| IVTV_REG_OFFSET*/)
 174 #define IVTV_REG_SPU (0x9050 /*| IVTV_REG_OFFSET*/)
 175 #define IVTV_REG_HW_BLOCKS (0x9054 /*| IVTV_REG_OFFSET*/)
 176 #define IVTV_REG_VPU (0x9058 /*| IVTV_REG_OFFSET*/)
 177 #define IVTV_REG_APU (0xA064 /*| IVTV_REG_OFFSET*/)
 178
 179 /* ------------------------------------------------------------------ */
 180
 181 static void host_setup(struct cx88_core *core)
 182 {
 183         /* toggle reset of the host */
 184         cx_write(MO_GPHST_SOFT_RST, 1);
 185         udelay(100);
 186         cx_write(MO_GPHST_SOFT_RST, 0);
 187         udelay(100);
 188
 189         /* host port setup */
 190         cx_write(MO_GPHST_WSC, 0x44444444U);
 191         cx_write(MO_GPHST_XFR, 0);
 192         cx_write(MO_GPHST_WDTH, 15);
 193         cx_write(MO_GPHST_HDSHK, 0);
 194         cx_write(MO_GPHST_MUX16, 0x44448888U);
 195         cx_write(MO_GPHST_MODE, 0);
 196 }
 197
 198 /* ------------------------------------------------------------------ */
 199
 200 #define P1_MDATA0 0x390000
 201 #define P1_MDATA1 0x390001
 202 #define P1_MDATA2 0x390002
 203 #define P1_MDATA3 0x390003
 204 #define P1_MADDR2 0x390004
 205 #define P1_MADDR1 0x390005
 206 #define P1_MADDR0 0x390006
 207 #define P1_RDATA0 0x390008
 208 #define P1_RDATA1 0x390009
 209 #define P1_RDATA2 0x39000A
 210 #define P1_RDATA3 0x39000B
 211 #define P1_RADDR0 0x39000C
 212 #define P1_RADDR1 0x39000D
 213 #define P1_RRDWR  0x39000E
 214
 215 static int wait_ready_gpio0_bit1(struct cx88_core *core, u32 state)
 216 {
 217         unsigned long timeout = jiffies + msecs_to_jiffies(1);
 218         u32 gpio0,need;
 219
 220         need = state ? 2 : 0;
 221         for (;;) {
 222                 gpio0 = cx_read(MO_GP0_IO) & 2;
 223                 if (need == gpio0)
 224                         return 0;
 225                 if (time_after(jiffies,timeout))
 226                         return -1;
 227                 udelay(1);
 228         }
 229 }
 230
 231 static int memory_write(struct cx88_core *core, u32 address, u32 value)
 232 {
 233         /* Warning: address is dword address (4 bytes) */
 234         cx_writeb(P1_MDATA0, (unsigned int)value);
 235         cx_writeb(P1_MDATA1, (unsigned int)(value >> 8));
 236         cx_writeb(P1_MDATA2, (unsigned int)(value >> 16));
 237         cx_writeb(P1_MDATA3, (unsigned int)(value >> 24));
 238         cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) | 0x40);
 239         cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
 240         cx_writeb(P1_MADDR0, (unsigned int)address);
 241         cx_read(P1_MDATA0);
 242         cx_read(P1_MADDR0);
 243
 244         return wait_ready_gpio0_bit1(core,1);
 245 }
 246
 247 static int memory_read(struct cx88_core *core, u32 address, u32 *value)
 248 {
 249         int retval;
 250         u32 val;
 251
 252         /* Warning: address is dword address (4 bytes) */
 253         cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) & ~0xC0);
 254         cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
 255         cx_writeb(P1_MADDR0, (unsigned int)address);
 256         cx_read(P1_MADDR0);
 257
 258         retval = wait_ready_gpio0_bit1(core,1);
 259
 260         cx_writeb(P1_MDATA3, 0);
 261         val     = (unsigned char)cx_read(P1_MDATA3) << 24;
 262         cx_writeb(P1_MDATA2, 0);
 263         val    |= (unsigned char)cx_read(P1_MDATA2) << 16;
 264         cx_writeb(P1_MDATA1, 0);
 265         val    |= (unsigned char)cx_read(P1_MDATA1) << 8;
 266         cx_writeb(P1_MDATA0, 0);
 267         val    |= (unsigned char)cx_read(P1_MDATA0);
 268
 269         *value  = val;
 270         return retval;
 271 }
 272
 273 static int register_write(struct cx88_core *core, u32 address, u32 value)
 274 {
 275         cx_writeb(P1_RDATA0, (unsigned int)value);
 276         cx_writeb(P1_RDATA1, (unsigned int)(value >> 8));
 277         cx_writeb(P1_RDATA2, (unsigned int)(value >> 16));
 278         cx_writeb(P1_RDATA3, (unsigned int)(value >> 24));
 279         cx_writeb(P1_RADDR0, (unsigned int)address);
 280         cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
 281         cx_writeb(P1_RRDWR, 1);
 282         cx_read(P1_RDATA0);
 283         cx_read(P1_RADDR0);
 284
 285         return wait_ready_gpio0_bit1(core,1);
 286 }
 287
 288
 289 static int register_read(struct cx88_core *core, u32 address, u32 *value)
 290 {
 291         int retval;
 292         u32 val;
 293
 294         cx_writeb(P1_RADDR0, (unsigned int)address);
 295         cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
 296         cx_writeb(P1_RRDWR, 0);
 297         cx_read(P1_RADDR0);
 298
 299         retval  = wait_ready_gpio0_bit1(core,1);
 300         val     = (unsigned char)cx_read(P1_RDATA0);
 301         val    |= (unsigned char)cx_read(P1_RDATA1) << 8;
 302         val    |= (unsigned char)cx_read(P1_RDATA2) << 16;
 303         val    |= (unsigned char)cx_read(P1_RDATA3) << 24;
 304
 305         *value  = val;
 306         return retval;
 307 }
 308
 309 /* ------------------------------------------------------------------ */
 310
 311 static int blackbird_mbox_func(void *priv, u32 command, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA])
 312 {
 313         struct cx8802_dev *dev = priv;
 314         unsigned long timeout;
 315         u32 value, flag, retval;
 316         int i;
 317
 318         dprintk(1,"%s: 0x%X\n", __func__, command);
 319
 320         /* this may not be 100% safe if we can't read any memory location
 321            without side effects */
 322         memory_read(dev->core, dev->mailbox - 4, &value);
 323         if (value != 0x12345678) {
 324                 dprintk(0, "Firmware and/or mailbox pointer not initialized or corrupted\n");
 325                 return -1;
 326         }
 327
 328         memory_read(dev->core, dev->mailbox, &flag);
 329         if (flag) {
 330                 dprintk(0, "ERROR: Mailbox appears to be in use (%x)\n", flag);
 331                 return -1;
 332         }
 333
 334         flag |= 1; /* tell 'em we're working on it */
 335         memory_write(dev->core, dev->mailbox, flag);
 336
 337         /* write command + args + fill remaining with zeros */
 338         memory_write(dev->core, dev->mailbox + 1, command); /* command code */
 339         memory_write(dev->core, dev->mailbox + 3, IVTV_API_STD_TIMEOUT); /* timeout */
 340         for (i = 0; i < in; i++) {
 341                 memory_write(dev->core, dev->mailbox + 4 + i, data[i]);
 342                 dprintk(1, "API Input %d = %d\n", i, data[i]);
 343         }
 344         for (; i < CX2341X_MBOX_MAX_DATA; i++)
 345                 memory_write(dev->core, dev->mailbox + 4 + i, 0);
 346
 347         flag |= 3; /* tell 'em we're done writing */
 348         memory_write(dev->core, dev->mailbox, flag);
 349
 350         /* wait for firmware to handle the API command */
 351         timeout = jiffies + msecs_to_jiffies(10);
 352         for (;;) {
 353                 memory_read(dev->core, dev->mailbox, &flag);
 354                 if (0 != (flag & 4))
 355                         break;
 356                 if (time_after(jiffies,timeout)) {
 357                         dprintk(0, "ERROR: API Mailbox timeout\n");
 358                         return -1;
 359                 }
 360                 udelay(10);
 361         }
 362
 363         /* read output values */
 364         for (i = 0; i < out; i++) {
 365                 memory_read(dev->core, dev->mailbox + 4 + i, data + i);
 366                 dprintk(1, "API Output %d = %d\n", i, data[i]);
 367         }
 368
 369         memory_read(dev->core, dev->mailbox + 2, &retval);
 370         dprintk(1, "API result = %d\n",retval);
 371
 372         flag = 0;
 373         memory_write(dev->core, dev->mailbox, flag);
 374         return retval;
 375 }
 376 /* ------------------------------------------------------------------ */
 377
 378 /* We don't need to call the API often, so using just one mailbox will probably suffice */
 379 static int blackbird_api_cmd(struct cx8802_dev *dev, u32 command,
 380                              u32 inputcnt, u32 outputcnt, ...)
 381 {
 382         u32 data[CX2341X_MBOX_MAX_DATA];
 383         va_list vargs;
 384         int i, err;
 385
 386         va_start(vargs, outputcnt);
 387
 388         for (i = 0; i < inputcnt; i++) {
 389                 data[i] = va_arg(vargs, int);
 390         }
 391         err = blackbird_mbox_func(dev, command, inputcnt, outputcnt, data);
 392         for (i = 0; i < outputcnt; i++) {
 393                 int *vptr = va_arg(vargs, int *);
 394                 *vptr = data[i];
 395         }
 396         va_end(vargs);
 397         return err;
 398 }
 399
 400 static int blackbird_find_mailbox(struct cx8802_dev *dev)
 401 {
 402         u32 signature[4]={0x12345678, 0x34567812, 0x56781234, 0x78123456};
 403         int signaturecnt=0;
 404         u32 value;
 405         int i;
 406
 407         for (i = 0; i < BLACKBIRD_FIRM_IMAGE_SIZE; i++) {
 408                 memory_read(dev->core, i, &value);
 409                 if (value == signature[signaturecnt])
 410                         signaturecnt++;
 411                 else
 412                         signaturecnt = 0;
 413                 if (4 == signaturecnt) {
 414                         dprintk(1, "Mailbox signature found\n");
 415                         return i+1;
 416                 }
 417         }
 418         dprintk(0, "Mailbox signature values not found!\n");
 419         return -1;
 420 }
 421
 422 static int blackbird_load_firmware(struct cx8802_dev *dev)
 423 {
 424         static const unsigned char magic[8] = {
 425                 0xa7, 0x0d, 0x00, 0x00, 0x66, 0xbb, 0x55, 0xaa
 426         };
 427         const struct firmware *firmware;
 428         int i, retval = 0;
 429         u32 value = 0;
 430         u32 checksum = 0;
 431         u32 *dataptr;
 432
 433         retval  = register_write(dev->core, IVTV_REG_VPU, 0xFFFFFFED);
 434         retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, IVTV_CMD_HW_BLOCKS_RST);
 435         retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_REFRESH, 0x80000640);
 436         retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_PRECHARGE, 0x1A);
 437         msleep(1);
 438         retval |= register_write(dev->core, IVTV_REG_APU, 0);
 439
 440         if (retval < 0)
 441                 dprintk(0, "Error with register_write\n");
 442
 443         retval = request_firmware(&firmware, CX2341X_FIRM_ENC_FILENAME,
 444                                   &dev->pci->dev);
 445
 446
 447         if (retval != 0) {
 448                 dprintk(0, "ERROR: Hotplug firmware request failed (%s).\n",
 449                         CX2341X_FIRM_ENC_FILENAME);
 450                 dprintk(0, "Please fix your hotplug setup, the board will "
 451                         "not work without firmware loaded!\n");
 452                 return -1;
 453         }
 454
 455         if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) {
 456                 dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d)\n",
 457                         firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE);
 458                 release_firmware(firmware);
 459                 return -1;
 460         }
 461
 462         if (0 != memcmp(firmware->data, magic, 8)) {
 463                 dprintk(0, "ERROR: Firmware magic mismatch, wrong file?\n");
 464                 release_firmware(firmware);
 465                 return -1;
 466         }
 467
 468         /* transfer to the chip */
 469         dprintk(1,"Loading firmware ...\n");
 470         dataptr = (u32*)firmware->data;
 471         for (i = 0; i < (firmware->size >> 2); i++) {
 472                 value = *dataptr;
 473                 checksum += ~value;
 474                 memory_write(dev->core, i, value);
 475                 dataptr++;
 476         }
 477
 478         /* read back to verify with the checksum */
 479         for (i--; i >= 0; i--) {
 480                 memory_read(dev->core, i, &value);
 481                 checksum -= ~value;
 482         }
 483         if (checksum) {
 484                 dprintk(0, "ERROR: Firmware load failed (checksum mismatch).\n");
 485                 release_firmware(firmware);
 486                 return -1;
 487         }
 488         release_firmware(firmware);
 489         dprintk(0, "Firmware upload successful.\n");
 490
 491         retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, IVTV_CMD_HW_BLOCKS_RST);
 492         retval |= register_read(dev->core, IVTV_REG_SPU, &value);
 493         retval |= register_write(dev->core, IVTV_REG_SPU, value & 0xFFFFFFFE);
 494         msleep(1);
 495
 496         retval |= register_read(dev->core, IVTV_REG_VPU, &value);
 497         retval |= register_write(dev->core, IVTV_REG_VPU, value & 0xFFFFFFE8);
 498
 499         if (retval < 0)
 500                 dprintk(0, "Error with register_write\n");
 501         return 0;
 502 }
 503
 504 /**
 505  Settings used by the windows tv app for PVR2000:
 506 =================================================================================================================
 507 Profile | Codec | Resolution | CBR/VBR | Video Qlty   | V. Bitrate | Frmrate | Audio Codec | A. Bitrate | A. Mode
 508 -----------------------------------------------------------------------------------------------------------------
 509 MPEG-1  | MPEG1 | 352x288PAL | (CBR)   | 1000:Optimal | 2000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
 510 MPEG-2  | MPEG2 | 720x576PAL | VBR     | 600 :Good    | 4000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
 511 VCD     | MPEG1 | 352x288PAL | (CBR)   | 1000:Optimal | 1150 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
 512 DVD     | MPEG2 | 720x576PAL | VBR     | 600 :Good    | 6000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
 513 DB* DVD | MPEG2 | 720x576PAL | CBR     | 600 :Good    | 6000 Kbps  | 25fps   | MPG1 Layer2 | 224kbps    | Stereo
 514 =================================================================================================================
 515 *DB: "DirectBurn"
 516 */
 517
 518 static void blackbird_codec_settings(struct cx8802_dev *dev)
 519 {
 520         /* assign frame size */
 521         blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0,
 522                                 dev->height, dev->width);
 523
 524         dev->params.width = dev->width;
 525         dev->params.height = dev->height;
 526         dev->params.is_50hz = (dev->core->tvnorm & V4L2_STD_625_50) != 0;
 527
 528         cx2341x_update(dev, blackbird_mbox_func, NULL, &dev->params);
 529 }
 530
 531 static int blackbird_initialize_codec(struct cx8802_dev *dev)
 532 {
 533         struct cx88_core *core = dev->core;
 534         int version;
 535         int retval;
 536
 537         dprintk(1,"Initialize codec\n");
 538         retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); /* ping */
 539         if (retval < 0) {
 540
 541                 dev->mpeg_active = 0;
 542
 543                 /* ping was not successful, reset and upload firmware */
 544                 cx_write(MO_SRST_IO, 0); /* SYS_RSTO=0 */
 545                 cx_write(MO_SRST_IO, 1); /* SYS_RSTO=1 */
 546                 retval = blackbird_load_firmware(dev);
 547                 if (retval < 0)
 548                         return retval;
 549
 550                 retval = blackbird_find_mailbox(dev);
 551                 if (retval < 0)
 552                         return -1;
 553
 554                 dev->mailbox = retval;
 555
 556                 retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); /* ping */
 557                 if (retval < 0) {
 558                         dprintk(0, "ERROR: Firmware ping failed!\n");
 559                         return -1;
 560                 }
 561
 562                 retval = blackbird_api_cmd(dev, CX2341X_ENC_GET_VERSION, 0, 1, &version);
 563                 if (retval < 0) {
 564                         dprintk(0, "ERROR: Firmware get encoder version failed!\n");
 565                         return -1;
 566                 }
 567                 dprintk(0, "Firmware version is 0x%08x\n", version);
 568         }
 569
 570         cx_write(MO_PINMUX_IO, 0x88); /* 656-8bit IO and enable MPEG parallel IO */
 571         cx_clear(MO_INPUT_FORMAT, 0x100); /* chroma subcarrier lock to normal? */
 572         cx_write(MO_VBOS_CONTROL, 0x84A00); /* no 656 mode, 8-bit pixels, disable VBI */
 573         cx_clear(MO_OUTPUT_FORMAT, 0x0008); /* Normal Y-limits to let the mpeg encoder sync */
 574
 575         blackbird_codec_settings(dev);
 576
 577         blackbird_api_cmd(dev, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, 0,
 578                         BLACKBIRD_FIELD1_SAA7115,
 579                         BLACKBIRD_FIELD2_SAA7115
 580                 );
 581
 582         blackbird_api_cmd(dev, CX2341X_ENC_SET_PLACEHOLDER, 12, 0,
 583                         BLACKBIRD_CUSTOM_EXTENSION_USR_DATA,
 584                         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
 585
 586         return 0;
 587 }
 588
 589 static int blackbird_start_codec(struct file *file, void *priv)
 590 {
 591         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 592         struct cx88_core *core = dev->core;
 593         /* start capturing to the host interface */
 594         u32 reg;
 595
 596         int i;
 597         int lastchange = -1;
 598         int lastval = 0;
 599
 600         for (i = 0; (i < 10) && (i < (lastchange + 4)); i++) {
 601                 reg = cx_read(AUD_STATUS);
 602
 603                 dprintk(1, "AUD_STATUS:%dL: 0x%x\n", i, reg);
 604                 if ((reg & 0x0F) != lastval) {
 605                         lastval = reg & 0x0F;
 606                         lastchange = i;
 607                 }
 608                 msleep(100);
 609         }
 610
 611         /* unmute audio source */
 612         cx_clear(AUD_VOL_CTL, (1 << 6));
 613
 614         blackbird_api_cmd(dev, CX2341X_ENC_REFRESH_INPUT, 0, 0);
 615
 616         /* initialize the video input */
 617         blackbird_api_cmd(dev, CX2341X_ENC_INITIALIZE_INPUT, 0, 0);
 618
 619         /* start capturing to the host interface */
 620         blackbird_api_cmd(dev, CX2341X_ENC_START_CAPTURE, 2, 0,
 621                         BLACKBIRD_MPEG_CAPTURE,
 622                         BLACKBIRD_RAW_BITS_NONE
 623                 );
 624
 625         dev->mpeg_active = 1;
 626         return 0;
 627 }
 628
 629 static int blackbird_stop_codec(struct cx8802_dev *dev)
 630 {
 631         blackbird_api_cmd(dev, CX2341X_ENC_STOP_CAPTURE, 3, 0,
 632                         BLACKBIRD_END_NOW,
 633                         BLACKBIRD_MPEG_CAPTURE,
 634                         BLACKBIRD_RAW_BITS_NONE
 635                 );
 636
 637         dev->mpeg_active = 0;
 638         return 0;
 639 }
 640
 641 /* ------------------------------------------------------------------ */
 642
 643 static int bb_buf_setup(struct videobuf_queue *q,
 644                         unsigned int *count, unsigned int *size)
 645 {
 646         struct cx8802_fh *fh = q->priv_data;
 647
 648         fh->dev->ts_packet_size  = 188 * 4; /* was: 512 */
 649         fh->dev->ts_packet_count = mpegbufs; /* was: 100 */
 650
 651         *size = fh->dev->ts_packet_size * fh->dev->ts_packet_count;
 652         *count = fh->dev->ts_packet_count;
 653         return 0;
 654 }
 655
 656 static int
 657 bb_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 658                enum v4l2_field field)
 659 {
 660         struct cx8802_fh *fh = q->priv_data;
 661         return cx8802_buf_prepare(q, fh->dev, (struct cx88_buffer*)vb, field);
 662 }
 663
 664 static void
 665 bb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
 666 {
 667         struct cx8802_fh *fh = q->priv_data;
 668         cx8802_buf_queue(fh->dev, (struct cx88_buffer*)vb);
 669 }
 670
 671 static void
 672 bb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
 673 {
 674         cx88_free_buffer(q, (struct cx88_buffer*)vb);
 675 }
 676
 677 static struct videobuf_queue_ops blackbird_qops = {
 678         .buf_setup    = bb_buf_setup,
 679         .buf_prepare  = bb_buf_prepare,
 680         .buf_queue    = bb_buf_queue,
 681         .buf_release  = bb_buf_release,
 682 };
 683
 684 /* ------------------------------------------------------------------ */
 685
 686 static const u32 *ctrl_classes[] = {
 687         cx88_user_ctrls,
 688         cx2341x_mpeg_ctrls,
 689         NULL
 690 };
 691
 692 static int blackbird_queryctrl(struct cx8802_dev *dev, struct v4l2_queryctrl *qctrl)
 693 {
 694         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
 695         if (qctrl->id == 0)
 696                 return -EINVAL;
 697
 698         /* Standard V4L2 controls */
 699         if (cx8800_ctrl_query(dev->core, qctrl) == 0)
 700                 return 0;
 701
 702         /* MPEG V4L2 controls */
 703         if (cx2341x_ctrl_query(&dev->params, qctrl))
 704                 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
 705         return 0;
 706 }
 707
 708 /* ------------------------------------------------------------------ */
 709 /* IOCTL Handlers                                                     */
 710
 711 static int vidioc_querymenu (struct file *file, void *priv,
 712                                 struct v4l2_querymenu *qmenu)
 713 {
 714         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 715         struct v4l2_queryctrl qctrl;
 716
 717         qctrl.id = qmenu->id;
 718         blackbird_queryctrl(dev, &qctrl);
 719         return v4l2_ctrl_query_menu(qmenu, &qctrl,
 720                         cx2341x_ctrl_get_menu(&dev->params, qmenu->id));
 721 }
 722
 723 static int vidioc_querycap (struct file *file, void  *priv,
 724                                         struct v4l2_capability *cap)
 725 {
 726         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 727         struct cx88_core  *core = dev->core;
 728
 729         strcpy(cap->driver, "cx88_blackbird");
 730         strlcpy(cap->card, core->board.name, sizeof(cap->card));
 731         sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
 732         cap->version = CX88_VERSION_CODE;
 733         cap->capabilities =
 734                 V4L2_CAP_VIDEO_CAPTURE |
 735                 V4L2_CAP_READWRITE     |
 736                 V4L2_CAP_STREAMING;
 737         if (UNSET != core->board.tuner_type)
 738                 cap->capabilities |= V4L2_CAP_TUNER;
 739         return 0;
 740 }
 741
 742 static int vidioc_enum_fmt_vid_cap (struct file *file, void  *priv,
 743                                         struct v4l2_fmtdesc *f)
 744 {
 745         if (f->index != 0)
 746                 return -EINVAL;
 747
 748         strlcpy(f->description, "MPEG", sizeof(f->description));
 749         f->pixelformat = V4L2_PIX_FMT_MPEG;
 750         return 0;
 751 }
 752
 753 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
 754                                         struct v4l2_format *f)
 755 {
 756         struct cx8802_fh  *fh   = priv;
 757         struct cx8802_dev *dev  = fh->dev;
 758
 759         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 760         f->fmt.pix.bytesperline = 0;
 761         f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */
 762         f->fmt.pix.colorspace   = 0;
 763         f->fmt.pix.width        = dev->width;
 764         f->fmt.pix.height       = dev->height;
 765         f->fmt.pix.field        = fh->mpegq.field;
 766         dprintk(0,"VIDIOC_G_FMT: w: %d, h: %d, f: %d\n",
 767                 dev->width, dev->height, fh->mpegq.field );
 768         return 0;
 769 }
 770
 771 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
 772                         struct v4l2_format *f)
 773 {
 774         struct cx8802_fh  *fh   = priv;
 775         struct cx8802_dev *dev  = fh->dev;
 776
 777         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 778         f->fmt.pix.bytesperline = 0;
 779         f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */;
 780         f->fmt.pix.colorspace   = 0;
 781         dprintk(0,"VIDIOC_TRY_FMT: w: %d, h: %d, f: %d\n",
 782                 dev->width, dev->height, fh->mpegq.field );
 783         return 0;
 784 }
 785
 786 static int vidioc_s_fmt_vid_cap (struct file *file, void *priv,
 787                                         struct v4l2_format *f)
 788 {
 789         struct cx8802_fh  *fh   = priv;
 790         struct cx8802_dev *dev  = fh->dev;
 791         struct cx88_core  *core = dev->core;
 792
 793         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 794         f->fmt.pix.bytesperline = 0;
 795         f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */;
 796         f->fmt.pix.colorspace   = 0;
 797         dev->width              = f->fmt.pix.width;
 798         dev->height             = f->fmt.pix.height;
 799         fh->mpegq.field         = f->fmt.pix.field;
 800         cx88_set_scale(core, f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
 801         blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0,
 802                                 f->fmt.pix.height, f->fmt.pix.width);
 803         dprintk(0,"VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
 804                 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field );
 805         return 0;
 806 }
 807
 808 static int vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p)
 809 {
 810         struct cx8802_fh  *fh   = priv;
 811         return (videobuf_reqbufs(&fh->mpegq, p));
 812 }
 813
 814 static int vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p)
 815 {
 816         struct cx8802_fh  *fh   = priv;
 817         return (videobuf_querybuf(&fh->mpegq, p));
 818 }
 819
 820 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
 821 {
 822         struct cx8802_fh  *fh   = priv;
 823         return (videobuf_qbuf(&fh->mpegq, p));
 824 }
 825
 826 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
 827 {
 828         struct cx8802_fh  *fh   = priv;
 829         return (videobuf_dqbuf(&fh->mpegq, p,
 830                                 file->f_flags & O_NONBLOCK));
 831 }
 832
 833 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 834 {
 835         struct cx8802_fh  *fh   = priv;
 836         return videobuf_streamon(&fh->mpegq);
 837 }
 838
 839 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 840 {
 841         struct cx8802_fh  *fh   = priv;
 842         return videobuf_streamoff(&fh->mpegq);
 843 }
 844
 845 static int vidioc_g_ext_ctrls (struct file *file, void *priv,
 846                                struct v4l2_ext_controls *f)
 847 {
 848         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 849
 850         if (f->ctrl_class != V4L2_CTRL_CLASS_MPEG)
 851                 return -EINVAL;
 852         return cx2341x_ext_ctrls(&dev->params, 0, f, VIDIOC_G_EXT_CTRLS);
 853 }
 854
 855 static int vidioc_s_ext_ctrls (struct file *file, void *priv,
 856                                struct v4l2_ext_controls *f)
 857 {
 858         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 859         struct cx2341x_mpeg_params p;
 860         int err;
 861
 862         if (f->ctrl_class != V4L2_CTRL_CLASS_MPEG)
 863                 return -EINVAL;
 864
 865         if (dev->mpeg_active)
 866                 blackbird_stop_codec(dev);
 867
 868         p = dev->params;
 869         err = cx2341x_ext_ctrls(&p, 0, f, VIDIOC_S_EXT_CTRLS);
 870         if (!err) {
 871                 err = cx2341x_update(dev, blackbird_mbox_func, &dev->params, &p);
 872                 dev->params = p;
 873         }
 874         return err;
 875 }
 876
 877 static int vidioc_try_ext_ctrls (struct file *file, void *priv,
 878                                struct v4l2_ext_controls *f)
 879 {
 880         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 881         struct cx2341x_mpeg_params p;
 882         int err;
 883
 884         if (f->ctrl_class != V4L2_CTRL_CLASS_MPEG)
 885                 return -EINVAL;
 886         p = dev->params;
 887         err = cx2341x_ext_ctrls(&p, 0, f, VIDIOC_TRY_EXT_CTRLS);
 888
 889         return err;
 890 }
 891
 892 static int vidioc_s_frequency (struct file *file, void *priv,
 893                                 struct v4l2_frequency *f)
 894 {
 895         struct cx8802_fh  *fh   = priv;
 896         struct cx8802_dev *dev  = fh->dev;
 897         struct cx88_core  *core = dev->core;
 898
 899         if (dev->mpeg_active)
 900                 blackbird_stop_codec(dev);
 901
 902         cx88_set_freq (core,f);
 903         blackbird_initialize_codec(dev);
 904         cx88_set_scale(dev->core, dev->width, dev->height,
 905                         fh->mpegq.field);
 906         return 0;
 907 }
 908
 909 static int vidioc_log_status (struct file *file, void *priv)
 910 {
 911         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 912         struct cx88_core  *core = dev->core;
 913         char name[32 + 2];
 914
 915         snprintf(name, sizeof(name), "%s/2", core->name);
 916         printk("%s/2: ============  START LOG STATUS  ============\n",
 917                 core->name);
 918         call_all(core, core, log_status);
 919         cx2341x_log_status(&dev->params, name);
 920         printk("%s/2: =============  END LOG STATUS  =============\n",
 921                 core->name);
 922         return 0;
 923 }
 924
 925 static int vidioc_queryctrl (struct file *file, void *priv,
 926                                 struct v4l2_queryctrl *qctrl)
 927 {
 928         struct cx8802_dev *dev  = ((struct cx8802_fh *)priv)->dev;
 929
 930         if (blackbird_queryctrl(dev, qctrl) == 0)
 931                 return 0;
 932
 933         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
 934         if (unlikely(qctrl->id == 0))
 935                 return -EINVAL;
 936         return cx8800_ctrl_query(dev->core, qctrl);
 937 }
 938
 939 static int vidioc_enum_input (struct file *file, void *priv,
 940                                 struct v4l2_input *i)
 941 {
 942         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 943         return cx88_enum_input (core,i);
 944 }
 945
 946 static int vidioc_g_ctrl (struct file *file, void *priv,
 947                                 struct v4l2_control *ctl)
 948 {
 949         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 950         return
 951                 cx88_get_control(core,ctl);
 952 }
 953
 954 static int vidioc_s_ctrl (struct file *file, void *priv,
 955                                 struct v4l2_control *ctl)
 956 {
 957         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 958         return
 959                 cx88_set_control(core,ctl);
 960 }
 961
 962 static int vidioc_g_frequency (struct file *file, void *priv,
 963                                 struct v4l2_frequency *f)
 964 {
 965         struct cx8802_fh  *fh   = priv;
 966         struct cx88_core  *core = fh->dev->core;
 967
 968         if (unlikely(UNSET == core->board.tuner_type))
 969                 return -EINVAL;
 970
 971         f->type = V4L2_TUNER_ANALOG_TV;
 972         f->frequency = core->freq;
 973         call_all(core, tuner, g_frequency, f);
 974
 975         return 0;
 976 }
 977
 978 static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
 979 {
 980         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 981
 982         *i = core->input;
 983         return 0;
 984 }
 985
 986 static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
 987 {
 988         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 989
 990         if (i >= 4)
 991                 return -EINVAL;
 992
 993         mutex_lock(&core->lock);
 994         cx88_newstation(core);
 995         cx88_video_mux(core,i);
 996         mutex_unlock(&core->lock);
 997         return 0;
 998 }
 999
1000 static int vidioc_g_tuner (struct file *file, void *priv,
1001                                 struct v4l2_tuner *t)
1002 {
1003         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
1004         u32 reg;
1005
1006         if (unlikely(UNSET == core->board.tuner_type))
1007                 return -EINVAL;
1008         if (0 != t->index)
1009                 return -EINVAL;
1010
1011         strcpy(t->name, "Television");
1012         t->type       = V4L2_TUNER_ANALOG_TV;
1013         t->capability = V4L2_TUNER_CAP_NORM;
1014         t->rangehigh  = 0xffffffffUL;
1015
1016         cx88_get_stereo(core ,t);
1017         reg = cx_read(MO_DEVICE_STATUS);
1018         t->signal = (reg & (1<<5)) ? 0xffff : 0x0000;
1019         return 0;
1020 }
1021
1022 static int vidioc_s_tuner (struct file *file, void *priv,
1023                                 struct v4l2_tuner *t)
1024 {
1025         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
1026
1027         if (UNSET == core->board.tuner_type)
1028                 return -EINVAL;
1029         if (0 != t->index)
1030                 return -EINVAL;
1031
1032         cx88_set_stereo(core, t->audmode, 1);
1033         return 0;
1034 }
1035
1036 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
1037 {
1038         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
1039
1040         mutex_lock(&core->lock);
1041         cx88_set_tvnorm(core,*id);
1042         mutex_unlock(&core->lock);
1043         return 0;
1044 }
1045
1046 /* FIXME: cx88_ioctl_hook not implemented */
1047
1048 static int mpeg_open(struct file *file)
1049 {
1050         int minor = video_devdata(file)->minor;
1051         struct cx8802_dev *dev = NULL;
1052         struct cx8802_fh *fh;
1053         struct cx8802_driver *drv = NULL;
1054         int err;
1055
1056         lock_kernel();
1057         dev = cx8802_get_device(minor);
1058
1059         dprintk( 1, "%s\n", __func__);
1060
1061         if (dev == NULL) {
1062                 unlock_kernel();
1063                 return -ENODEV;
1064         }
1065
1066         /* Make sure we can acquire the hardware */
1067         drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
1068         if (drv) {
1069                 err = drv->request_acquire(drv);
1070                 if(err != 0) {
1071                         dprintk(1,"%s: Unable to acquire hardware, %d\n", __func__, err);
1072                         unlock_kernel();
1073                         return err;
1074                 }
1075         }
1076
1077         if (!atomic_read(&dev->core->mpeg_users) && blackbird_initialize_codec(dev) < 0) {
1078                 if (drv)
1079                         drv->request_release(drv);
1080                 unlock_kernel();
1081                 return -EINVAL;
1082         }
1083         dprintk(1,"open minor=%d\n",minor);
1084
1085         /* allocate + initialize per filehandle data */
1086         fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1087         if (NULL == fh) {
1088                 if (drv)
1089                         drv->request_release(drv);
1090                 unlock_kernel();
1091                 return -ENOMEM;
1092         }
1093         file->private_data = fh;
1094         fh->dev      = dev;
1095
1096         videobuf_queue_sg_init(&fh->mpegq, &blackbird_qops,
1097                             &dev->pci->dev, &dev->slock,
1098                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
1099                             V4L2_FIELD_INTERLACED,
1100                             sizeof(struct cx88_buffer),
1101                             fh);
1102
1103         /* FIXME: locking against other video device */
1104         cx88_set_scale(dev->core, dev->width, dev->height,
1105                         fh->mpegq.field);
1106         unlock_kernel();
1107
1108         atomic_inc(&dev->core->mpeg_users);
1109
1110         return 0;
1111 }
1112
1113 static int mpeg_release(struct file *file)
1114 {
1115         struct cx8802_fh  *fh  = file->private_data;
1116         struct cx8802_dev *dev = fh->dev;
1117         struct cx8802_driver *drv = NULL;
1118
1119         if (dev->mpeg_active && atomic_read(&dev->core->mpeg_users) == 1)
1120                 blackbird_stop_codec(dev);
1121
1122         cx8802_cancel_buffers(fh->dev);
1123         /* stop mpeg capture */
1124         videobuf_stop(&fh->mpegq);
1125
1126         videobuf_mmap_free(&fh->mpegq);
1127         file->private_data = NULL;
1128         kfree(fh);
1129
1130         /* Make sure we release the hardware */
1131         dev = cx8802_get_device(video_devdata(file)->minor);
1132         if (dev == NULL)
1133                 return -ENODEV;
1134
1135         drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
1136         if (drv)
1137                 drv->request_release(drv);
1138
1139         atomic_dec(&dev->core->mpeg_users);
1140
1141         return 0;
1142 }
1143
1144 static ssize_t
1145 mpeg_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
1146 {
1147         struct cx8802_fh *fh = file->private_data;
1148         struct cx8802_dev *dev = fh->dev;
1149
1150         if (!dev->mpeg_active)
1151                 blackbird_start_codec(file, fh);
1152
1153         return videobuf_read_stream(&fh->mpegq, data, count, ppos, 0,
1154                                     file->f_flags & O_NONBLOCK);
1155 }
1156
1157 static unsigned int
1158 mpeg_poll(struct file *file, struct poll_table_struct *wait)
1159 {
1160         struct cx8802_fh *fh = file->private_data;
1161         struct cx8802_dev *dev = fh->dev;
1162
1163         if (!dev->mpeg_active)
1164                 blackbird_start_codec(file, fh);
1165
1166         return videobuf_poll_stream(file, &fh->mpegq, wait);
1167 }
1168
1169 static int
1170 mpeg_mmap(struct file *file, struct vm_area_struct * vma)
1171 {
1172         struct cx8802_fh *fh = file->private_data;
1173
1174         return videobuf_mmap_mapper(&fh->mpegq, vma);
1175 }
1176
1177 static const struct v4l2_file_operations mpeg_fops =
1178 {
1179         .owner         = THIS_MODULE,
1180         .open          = mpeg_open,
1181         .release       = mpeg_release,
1182         .read          = mpeg_read,
1183         .poll          = mpeg_poll,
1184         .mmap          = mpeg_mmap,
1185         .ioctl         = video_ioctl2,
1186 };
1187
1188 static const struct v4l2_ioctl_ops mpeg_ioctl_ops = {
1189         .vidioc_querymenu     = vidioc_querymenu,
1190         .vidioc_querycap      = vidioc_querycap,
1191         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1192         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1193         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1194         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1195         .vidioc_reqbufs       = vidioc_reqbufs,
1196         .vidioc_querybuf      = vidioc_querybuf,
1197         .vidioc_qbuf          = vidioc_qbuf,
1198         .vidioc_dqbuf         = vidioc_dqbuf,
1199         .vidioc_streamon      = vidioc_streamon,
1200         .vidioc_streamoff     = vidioc_streamoff,
1201         .vidioc_g_ext_ctrls   = vidioc_g_ext_ctrls,
1202         .vidioc_s_ext_ctrls   = vidioc_s_ext_ctrls,
1203         .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls,
1204         .vidioc_s_frequency   = vidioc_s_frequency,
1205         .vidioc_log_status    = vidioc_log_status,
1206         .vidioc_queryctrl     = vidioc_queryctrl,
1207         .vidioc_enum_input    = vidioc_enum_input,
1208         .vidioc_g_ctrl        = vidioc_g_ctrl,
1209         .vidioc_s_ctrl        = vidioc_s_ctrl,
1210         .vidioc_g_frequency   = vidioc_g_frequency,
1211         .vidioc_g_input       = vidioc_g_input,
1212         .vidioc_s_input       = vidioc_s_input,
1213         .vidioc_g_tuner       = vidioc_g_tuner,
1214         .vidioc_s_tuner       = vidioc_s_tuner,
1215         .vidioc_s_std         = vidioc_s_std,
1216 };
1217
1218 static struct video_device cx8802_mpeg_template = {
1219         .name                 = "cx8802",
1220         .fops                 = &mpeg_fops,
1221         .ioctl_ops            = &mpeg_ioctl_ops,
1222         .minor                = -1,
1223         .tvnorms              = CX88_NORMS,
1224         .current_norm         = V4L2_STD_NTSC_M,
1225 };
1226
1227 /* ------------------------------------------------------------------ */
1228
1229 /* The CX8802 MPEG API will call this when we can use the hardware */
1230 static int cx8802_blackbird_advise_acquire(struct cx8802_driver *drv)
1231 {
1232         struct cx88_core *core = drv->core;
1233         int err = 0;
1234
1235         switch (core->boardnr) {
1236         case CX88_BOARD_HAUPPAUGE_HVR1300:
1237                 /* By default, core setup will leave the cx22702 out of reset, on the bus.
1238                  * We left the hardware on power up with the cx22702 active.
1239                  * We're being given access to re-arrange the GPIOs.
1240                  * Take the bus off the cx22702 and put the cx23416 on it.
1241                  */
1242                 /* Toggle reset on cx22702 leaving i2c active */
1243                 cx_set(MO_GP0_IO, 0x00000080);
1244                 udelay(1000);
1245                 cx_clear(MO_GP0_IO, 0x00000080);
1246                 udelay(50);
1247                 cx_set(MO_GP0_IO, 0x00000080);
1248                 udelay(1000);
1249                 /* tri-state the cx22702 pins */
1250                 cx_set(MO_GP0_IO, 0x00000004);
1251                 udelay(1000);
1252                 break;
1253         default:
1254                 err = -ENODEV;
1255         }
1256         return err;
1257 }
1258
1259 /* The CX8802 MPEG API will call this when we need to release the hardware */
1260 static int cx8802_blackbird_advise_release(struct cx8802_driver *drv)
1261 {
1262         struct cx88_core *core = drv->core;
1263         int err = 0;
1264
1265         switch (core->boardnr) {
1266         case CX88_BOARD_HAUPPAUGE_HVR1300:
1267                 /* Exit leaving the cx23416 on the bus */
1268                 break;
1269         default:
1270                 err = -ENODEV;
1271         }
1272         return err;
1273 }
1274
1275 static void blackbird_unregister_video(struct cx8802_dev *dev)
1276 {
1277         if (dev->mpeg_dev) {
1278                 if (-1 != dev->mpeg_dev->minor)
1279                         video_unregister_device(dev->mpeg_dev);
1280                 else
1281                         video_device_release(dev->mpeg_dev);
1282                 dev->mpeg_dev = NULL;
1283         }
1284 }
1285
1286 static int blackbird_register_video(struct cx8802_dev *dev)
1287 {
1288         int err;
1289
1290         dev->mpeg_dev = cx88_vdev_init(dev->core,dev->pci,
1291                                        &cx8802_mpeg_template,"mpeg");
1292         err = video_register_device(dev->mpeg_dev,VFL_TYPE_GRABBER, -1);
1293         if (err < 0) {
1294                 printk(KERN_INFO "%s/2: can't register mpeg device\n",
1295                        dev->core->name);
1296                 return err;
1297         }
1298         printk(KERN_INFO "%s/2: registered device video%d [mpeg]\n",
1299                dev->core->name, dev->mpeg_dev->num);
1300         return 0;
1301 }
1302
1303 /* ----------------------------------------------------------- */
1304
1305 static int cx8802_blackbird_probe(struct cx8802_driver *drv)
1306 {
1307         struct cx88_core *core = drv->core;
1308         struct cx8802_dev *dev = core->dvbdev;
1309         int err;
1310
1311         dprintk( 1, "%s\n", __func__);
1312         dprintk( 1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
1313                 core->boardnr,
1314                 core->name,
1315                 core->pci_bus,
1316                 core->pci_slot);
1317
1318         err = -ENODEV;
1319         if (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))
1320                 goto fail_core;
1321
1322         dev->width = 720;
1323         dev->height = 576;
1324         cx2341x_fill_defaults(&dev->params);
1325         dev->params.port = CX2341X_PORT_STREAMING;
1326
1327         cx8802_mpeg_template.current_norm = core->tvnorm;
1328
1329         if (core->tvnorm & V4L2_STD_525_60) {
1330                 dev->height = 480;
1331         } else {
1332                 dev->height = 576;
1333         }
1334
1335         /* blackbird stuff */
1336         printk("%s/2: cx23416 based mpeg encoder (blackbird reference design)\n",
1337                core->name);
1338         host_setup(dev->core);
1339
1340         blackbird_initialize_codec(dev);
1341         blackbird_register_video(dev);
1342
1343         /* initial device configuration: needed ? */
1344         mutex_lock(&dev->core->lock);
1345 //      init_controls(core);
1346         cx88_set_tvnorm(core,core->tvnorm);
1347         cx88_video_mux(core,0);
1348         mutex_unlock(&dev->core->lock);
1349
1350         return 0;
1351
1352  fail_core:
1353         return err;
1354 }
1355
1356 static int cx8802_blackbird_remove(struct cx8802_driver *drv)
1357 {
1358         /* blackbird */
1359         blackbird_unregister_video(drv->core->dvbdev);
1360
1361         return 0;
1362 }
1363
1364 static struct cx8802_driver cx8802_blackbird_driver = {
1365         .type_id        = CX88_MPEG_BLACKBIRD,
1366         .hw_access      = CX8802_DRVCTL_SHARED,
1367         .probe          = cx8802_blackbird_probe,
1368         .remove         = cx8802_blackbird_remove,
1369         .advise_acquire = cx8802_blackbird_advise_acquire,
1370         .advise_release = cx8802_blackbird_advise_release,
1371 };
1372
1373 static int blackbird_init(void)
1374 {
1375         printk(KERN_INFO "cx2388x blackbird driver version %d.%d.%d loaded\n",
1376                (CX88_VERSION_CODE >> 16) & 0xff,
1377                (CX88_VERSION_CODE >>  8) & 0xff,
1378                CX88_VERSION_CODE & 0xff);
1379 #ifdef SNAPSHOT
1380         printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
1381                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1382 #endif
1383         return cx8802_register_driver(&cx8802_blackbird_driver);
1384 }
1385
1386 static void blackbird_fini(void)
1387 {
1388         cx8802_unregister_driver(&cx8802_blackbird_driver);
1389 }
1390
1391 module_init(blackbird_init);
1392 module_exit(blackbird_fini);
1393
1394 module_param_named(video_debug,cx8802_mpeg_template.debug, int, 0644);
1395 MODULE_PARM_DESC(debug,"enable debug messages [video]");
1396
1397 /* ----------------------------------------------------------- */
1398 /*
1399  * Local variables:
1400  * c-basic-offset: 8
1401  * End:
1402  * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
1403  */