git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/cx88/cx88-core.c

   1 /*
   2  *
   3  * device driver for Conexant 2388x based TV cards
   4  * driver core
   5  *
   6  * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/init.h>
  24 #include <linux/list.h>
  25 #include <linux/module.h>
  26 #include <linux/moduleparam.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/kmod.h>
  30 #include <linux/sound.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/pci.h>
  33 #include <linux/delay.h>
  34 #include <linux/videodev2.h>
  35 #include <linux/mutex.h>
  36
  37 #include "cx88.h"
  38 #include <media/v4l2-common.h>
  39
  40 MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
  41 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  42 MODULE_LICENSE("GPL");
  43
  44 /* ------------------------------------------------------------------ */
  45
  46 static unsigned int core_debug = 0;
  47 module_param(core_debug,int,0644);
  48 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  49
  50 static unsigned int latency = UNSET;
  51 module_param(latency,int,0444);
  52 MODULE_PARM_DESC(latency,"pci latency timer");
  53
  54 static unsigned int tuner[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  55 static unsigned int radio[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  56 static unsigned int card[]  = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  57
  58 module_param_array(tuner, int, NULL, 0444);
  59 module_param_array(radio, int, NULL, 0444);
  60 module_param_array(card,  int, NULL, 0444);
  61
  62 MODULE_PARM_DESC(tuner,"tuner type");
  63 MODULE_PARM_DESC(radio,"radio tuner type");
  64 MODULE_PARM_DESC(card,"card type");
  65
  66 static unsigned int nicam = 0;
  67 module_param(nicam,int,0644);
  68 MODULE_PARM_DESC(nicam,"tv audio is nicam");
  69
  70 static unsigned int nocomb = 0;
  71 module_param(nocomb,int,0644);
  72 MODULE_PARM_DESC(nocomb,"disable comb filter");
  73
  74 #define dprintk(level,fmt, arg...)      if (core_debug >= level)        \
  75         printk(KERN_DEBUG "%s: " fmt, core->name , ## arg)
  76
  77 static unsigned int cx88_devcount;
  78 static LIST_HEAD(cx88_devlist);
  79 static DEFINE_MUTEX(devlist);
  80
  81 #define NO_SYNC_LINE (-1U)
  82
  83 static u32* cx88_risc_field(u32 *rp, struct scatterlist *sglist,
  84                             unsigned int offset, u32 sync_line,
  85                             unsigned int bpl, unsigned int padding,
  86                             unsigned int lines)
  87 {
  88         struct scatterlist *sg;
  89         unsigned int line,todo;
  90
  91         /* sync instruction */
  92         if (sync_line != NO_SYNC_LINE)
  93                 *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
  94
  95         /* scan lines */
  96         sg = sglist;
  97         for (line = 0; line < lines; line++) {
  98                 while (offset && offset >= sg_dma_len(sg)) {
  99                         offset -= sg_dma_len(sg);
 100                         sg++;
 101                 }
 102                 if (bpl <= sg_dma_len(sg)-offset) {
 103                         /* fits into current chunk */
 104                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|RISC_EOL|bpl);
 105                         *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
 106                         offset+=bpl;
 107                 } else {
 108                         /* scanline needs to be split */
 109                         todo = bpl;
 110                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|
 111                                             (sg_dma_len(sg)-offset));
 112                         *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
 113                         todo -= (sg_dma_len(sg)-offset);
 114                         offset = 0;
 115                         sg++;
 116                         while (todo > sg_dma_len(sg)) {
 117                                 *(rp++)=cpu_to_le32(RISC_WRITE|
 118                                                     sg_dma_len(sg));
 119                                 *(rp++)=cpu_to_le32(sg_dma_address(sg));
 120                                 todo -= sg_dma_len(sg);
 121                                 sg++;
 122                         }
 123                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
 124                         *(rp++)=cpu_to_le32(sg_dma_address(sg));
 125                         offset += todo;
 126                 }
 127                 offset += padding;
 128         }
 129
 130         return rp;
 131 }
 132
 133 int cx88_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 134                      struct scatterlist *sglist,
 135                      unsigned int top_offset, unsigned int bottom_offset,
 136                      unsigned int bpl, unsigned int padding, unsigned int lines)
 137 {
 138         u32 instructions,fields;
 139         u32 *rp;
 140         int rc;
 141
 142         fields = 0;
 143         if (UNSET != top_offset)
 144                 fields++;
 145         if (UNSET != bottom_offset)
 146                 fields++;
 147
 148         /* estimate risc mem: worst case is one write per page border +
 149            one write per scan line + syncs + jump (all 2 dwords).  Padding
 150            can cause next bpl to start close to a page border.  First DMA
 151            region may be smaller than PAGE_SIZE */
 152         instructions  = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines);
 153         instructions += 2;
 154         if ((rc = btcx_riscmem_alloc(pci,risc,instructions*8)) < 0)
 155                 return rc;
 156
 157         /* write risc instructions */
 158         rp = risc->cpu;
 159         if (UNSET != top_offset)
 160                 rp = cx88_risc_field(rp, sglist, top_offset, 0,
 161                                      bpl, padding, lines);
 162         if (UNSET != bottom_offset)
 163                 rp = cx88_risc_field(rp, sglist, bottom_offset, 0x200,
 164                                      bpl, padding, lines);
 165
 166         /* save pointer to jmp instruction address */
 167         risc->jmp = rp;
 168         BUG_ON((risc->jmp - risc->cpu + 2) * sizeof (*risc->cpu) > risc->size);
 169         return 0;
 170 }
 171
 172 int cx88_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 173                          struct scatterlist *sglist, unsigned int bpl,
 174                          unsigned int lines)
 175 {
 176         u32 instructions;
 177         u32 *rp;
 178         int rc;
 179
 180         /* estimate risc mem: worst case is one write per page border +
 181            one write per scan line + syncs + jump (all 2 dwords).  Here
 182            there is no padding and no sync.  First DMA region may be smaller
 183            than PAGE_SIZE */
 184         instructions  = 1 + (bpl * lines) / PAGE_SIZE + lines;
 185         instructions += 1;
 186         if ((rc = btcx_riscmem_alloc(pci,risc,instructions*8)) < 0)
 187                 return rc;
 188
 189         /* write risc instructions */
 190         rp = risc->cpu;
 191         rp = cx88_risc_field(rp, sglist, 0, NO_SYNC_LINE, bpl, 0, lines);
 192
 193         /* save pointer to jmp instruction address */
 194         risc->jmp = rp;
 195         BUG_ON((risc->jmp - risc->cpu + 2) * sizeof (*risc->cpu) > risc->size);
 196         return 0;
 197 }
 198
 199 int cx88_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
 200                       u32 reg, u32 mask, u32 value)
 201 {
 202         u32 *rp;
 203         int rc;
 204
 205         if ((rc = btcx_riscmem_alloc(pci, risc, 4*16)) < 0)
 206                 return rc;
 207
 208         /* write risc instructions */
 209         rp = risc->cpu;
 210         *(rp++) = cpu_to_le32(RISC_WRITECR  | RISC_IRQ2 | RISC_IMM);
 211         *(rp++) = cpu_to_le32(reg);
 212         *(rp++) = cpu_to_le32(value);
 213         *(rp++) = cpu_to_le32(mask);
 214         *(rp++) = cpu_to_le32(RISC_JUMP);
 215         *(rp++) = cpu_to_le32(risc->dma);
 216         return 0;
 217 }
 218
 219 void
 220 cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf)
 221 {
 222         BUG_ON(in_interrupt());
 223         videobuf_waiton(&buf->vb,0,0);
 224         videobuf_dma_unmap(q, &buf->vb.dma);
 225         videobuf_dma_free(&buf->vb.dma);
 226         btcx_riscmem_free((struct pci_dev *)q->dev, &buf->risc);
 227         buf->vb.state = STATE_NEEDS_INIT;
 228 }
 229
 230 /* ------------------------------------------------------------------ */
 231 /* our SRAM memory layout                                             */
 232
 233 /* we are going to put all thr risc programs into host memory, so we
 234  * can use the whole SDRAM for the DMA fifos.  To simplify things, we
 235  * use a static memory layout.  That surely will waste memory in case
 236  * we don't use all DMA channels at the same time (which will be the
 237  * case most of the time).  But that still gives us enougth FIFO space
 238  * to be able to deal with insane long pci latencies ...
 239  *
 240  * FIFO space allocations:
 241  *    channel  21    (y video)  - 10.0k
 242  *    channel  22    (u video)  -  2.0k
 243  *    channel  23    (v video)  -  2.0k
 244  *    channel  24    (vbi)      -  4.0k
 245  *    channels 25+26 (audio)    -  4.0k
 246  *    channel  28    (mpeg)     -  4.0k
 247  *    TOTAL                     = 29.0k
 248  *
 249  * Every channel has 160 bytes control data (64 bytes instruction
 250  * queue and 6 CDT entries), which is close to 2k total.
 251  *
 252  * Address layout:
 253  *    0x0000 - 0x03ff    CMDs / reserved
 254  *    0x0400 - 0x0bff    instruction queues + CDs
 255  *    0x0c00 -           FIFOs
 256  */
 257
 258 struct sram_channel cx88_sram_channels[] = {
 259         [SRAM_CH21] = {
 260                 .name       = "video y / packed",
 261                 .cmds_start = 0x180040,
 262                 .ctrl_start = 0x180400,
 263                 .cdt        = 0x180400 + 64,
 264                 .fifo_start = 0x180c00,
 265                 .fifo_size  = 0x002800,
 266                 .ptr1_reg   = MO_DMA21_PTR1,
 267                 .ptr2_reg   = MO_DMA21_PTR2,
 268                 .cnt1_reg   = MO_DMA21_CNT1,
 269                 .cnt2_reg   = MO_DMA21_CNT2,
 270         },
 271         [SRAM_CH22] = {
 272                 .name       = "video u",
 273                 .cmds_start = 0x180080,
 274                 .ctrl_start = 0x1804a0,
 275                 .cdt        = 0x1804a0 + 64,
 276                 .fifo_start = 0x183400,
 277                 .fifo_size  = 0x000800,
 278                 .ptr1_reg   = MO_DMA22_PTR1,
 279                 .ptr2_reg   = MO_DMA22_PTR2,
 280                 .cnt1_reg   = MO_DMA22_CNT1,
 281                 .cnt2_reg   = MO_DMA22_CNT2,
 282         },
 283         [SRAM_CH23] = {
 284                 .name       = "video v",
 285                 .cmds_start = 0x1800c0,
 286                 .ctrl_start = 0x180540,
 287                 .cdt        = 0x180540 + 64,
 288                 .fifo_start = 0x183c00,
 289                 .fifo_size  = 0x000800,
 290                 .ptr1_reg   = MO_DMA23_PTR1,
 291                 .ptr2_reg   = MO_DMA23_PTR2,
 292                 .cnt1_reg   = MO_DMA23_CNT1,
 293                 .cnt2_reg   = MO_DMA23_CNT2,
 294         },
 295         [SRAM_CH24] = {
 296                 .name       = "vbi",
 297                 .cmds_start = 0x180100,
 298                 .ctrl_start = 0x1805e0,
 299                 .cdt        = 0x1805e0 + 64,
 300                 .fifo_start = 0x184400,
 301                 .fifo_size  = 0x001000,
 302                 .ptr1_reg   = MO_DMA24_PTR1,
 303                 .ptr2_reg   = MO_DMA24_PTR2,
 304                 .cnt1_reg   = MO_DMA24_CNT1,
 305                 .cnt2_reg   = MO_DMA24_CNT2,
 306         },
 307         [SRAM_CH25] = {
 308                 .name       = "audio from",
 309                 .cmds_start = 0x180140,
 310                 .ctrl_start = 0x180680,
 311                 .cdt        = 0x180680 + 64,
 312                 .fifo_start = 0x185400,
 313                 .fifo_size  = 0x001000,
 314                 .ptr1_reg   = MO_DMA25_PTR1,
 315                 .ptr2_reg   = MO_DMA25_PTR2,
 316                 .cnt1_reg   = MO_DMA25_CNT1,
 317                 .cnt2_reg   = MO_DMA25_CNT2,
 318         },
 319         [SRAM_CH26] = {
 320                 .name       = "audio to",
 321                 .cmds_start = 0x180180,
 322                 .ctrl_start = 0x180720,
 323                 .cdt        = 0x180680 + 64,  /* same as audio IN */
 324                 .fifo_start = 0x185400,       /* same as audio IN */
 325                 .fifo_size  = 0x001000,       /* same as audio IN */
 326                 .ptr1_reg   = MO_DMA26_PTR1,
 327                 .ptr2_reg   = MO_DMA26_PTR2,
 328                 .cnt1_reg   = MO_DMA26_CNT1,
 329                 .cnt2_reg   = MO_DMA26_CNT2,
 330         },
 331         [SRAM_CH28] = {
 332                 .name       = "mpeg",
 333                 .cmds_start = 0x180200,
 334                 .ctrl_start = 0x1807C0,
 335                 .cdt        = 0x1807C0 + 64,
 336                 .fifo_start = 0x186400,
 337                 .fifo_size  = 0x001000,
 338                 .ptr1_reg   = MO_DMA28_PTR1,
 339                 .ptr2_reg   = MO_DMA28_PTR2,
 340                 .cnt1_reg   = MO_DMA28_CNT1,
 341                 .cnt2_reg   = MO_DMA28_CNT2,
 342         },
 343 };
 344
 345 int cx88_sram_channel_setup(struct cx88_core *core,
 346                             struct sram_channel *ch,
 347                             unsigned int bpl, u32 risc)
 348 {
 349         unsigned int i,lines;
 350         u32 cdt;
 351
 352         bpl   = (bpl + 7) & ~7; /* alignment */
 353         cdt   = ch->cdt;
 354         lines = ch->fifo_size / bpl;
 355         if (lines > 6)
 356                 lines = 6;
 357         BUG_ON(lines < 2);
 358
 359         /* write CDT */
 360         for (i = 0; i < lines; i++)
 361                 cx_write(cdt + 16*i, ch->fifo_start + bpl*i);
 362
 363         /* write CMDS */
 364         cx_write(ch->cmds_start +  0, risc);
 365         cx_write(ch->cmds_start +  4, cdt);
 366         cx_write(ch->cmds_start +  8, (lines*16) >> 3);
 367         cx_write(ch->cmds_start + 12, ch->ctrl_start);
 368         cx_write(ch->cmds_start + 16, 64 >> 2);
 369         for (i = 20; i < 64; i += 4)
 370                 cx_write(ch->cmds_start + i, 0);
 371
 372         /* fill registers */
 373         cx_write(ch->ptr1_reg, ch->fifo_start);
 374         cx_write(ch->ptr2_reg, cdt);
 375         cx_write(ch->cnt1_reg, (bpl >> 3) -1);
 376         cx_write(ch->cnt2_reg, (lines*16) >> 3);
 377
 378         dprintk(2,"sram setup %s: bpl=%d lines=%d\n", ch->name, bpl, lines);
 379         return 0;
 380 }
 381
 382 /* ------------------------------------------------------------------ */
 383 /* debug helper code                                                  */
 384
 385 static int cx88_risc_decode(u32 risc)
 386 {
 387         static char *instr[16] = {
 388                 [ RISC_SYNC    >> 28 ] = "sync",
 389                 [ RISC_WRITE   >> 28 ] = "write",
 390                 [ RISC_WRITEC  >> 28 ] = "writec",
 391                 [ RISC_READ    >> 28 ] = "read",
 392                 [ RISC_READC   >> 28 ] = "readc",
 393                 [ RISC_JUMP    >> 28 ] = "jump",
 394                 [ RISC_SKIP    >> 28 ] = "skip",
 395                 [ RISC_WRITERM >> 28 ] = "writerm",
 396                 [ RISC_WRITECM >> 28 ] = "writecm",
 397                 [ RISC_WRITECR >> 28 ] = "writecr",
 398         };
 399         static int incr[16] = {
 400                 [ RISC_WRITE   >> 28 ] = 2,
 401                 [ RISC_JUMP    >> 28 ] = 2,
 402                 [ RISC_WRITERM >> 28 ] = 3,
 403                 [ RISC_WRITECM >> 28 ] = 3,
 404                 [ RISC_WRITECR >> 28 ] = 4,
 405         };
 406         static char *bits[] = {
 407                 "12",   "13",   "14",   "resync",
 408                 "cnt0", "cnt1", "18",   "19",
 409                 "20",   "21",   "22",   "23",
 410                 "irq1", "irq2", "eol",  "sol",
 411         };
 412         int i;
 413
 414         printk("0x%08x [ %s", risc,
 415                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
 416         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
 417                 if (risc & (1 << (i + 12)))
 418                         printk(" %s",bits[i]);
 419         printk(" count=%d ]\n", risc & 0xfff);
 420         return incr[risc >> 28] ? incr[risc >> 28] : 1;
 421 }
 422
 423
 424 void cx88_sram_channel_dump(struct cx88_core *core,
 425                             struct sram_channel *ch)
 426 {
 427         static char *name[] = {
 428                 "initial risc",
 429                 "cdt base",
 430                 "cdt size",
 431                 "iq base",
 432                 "iq size",
 433                 "risc pc",
 434                 "iq wr ptr",
 435                 "iq rd ptr",
 436                 "cdt current",
 437                 "pci target",
 438                 "line / byte",
 439         };
 440         u32 risc;
 441         unsigned int i,j,n;
 442
 443         printk("%s: %s - dma channel status dump\n",
 444                core->name,ch->name);
 445         for (i = 0; i < ARRAY_SIZE(name); i++)
 446                 printk("%s:   cmds: %-12s: 0x%08x\n",
 447                        core->name,name[i],
 448                        cx_read(ch->cmds_start + 4*i));
 449         for (i = 0; i < 4; i++) {
 450                 risc = cx_read(ch->cmds_start + 4 * (i+11));
 451                 printk("%s:   risc%d: ", core->name, i);
 452                 cx88_risc_decode(risc);
 453         }
 454         for (i = 0; i < 16; i += n) {
 455                 risc = cx_read(ch->ctrl_start + 4 * i);
 456                 printk("%s:   iq %x: ", core->name, i);
 457                 n = cx88_risc_decode(risc);
 458                 for (j = 1; j < n; j++) {
 459                         risc = cx_read(ch->ctrl_start + 4 * (i+j));
 460                         printk("%s:   iq %x: 0x%08x [ arg #%d ]\n",
 461                                core->name, i+j, risc, j);
 462                 }
 463         }
 464
 465         printk("%s: fifo: 0x%08x -> 0x%x\n",
 466                core->name, ch->fifo_start, ch->fifo_start+ch->fifo_size);
 467         printk("%s: ctrl: 0x%08x -> 0x%x\n",
 468                core->name, ch->ctrl_start, ch->ctrl_start+6*16);
 469         printk("%s:   ptr1_reg: 0x%08x\n",
 470                core->name,cx_read(ch->ptr1_reg));
 471         printk("%s:   ptr2_reg: 0x%08x\n",
 472                core->name,cx_read(ch->ptr2_reg));
 473         printk("%s:   cnt1_reg: 0x%08x\n",
 474                core->name,cx_read(ch->cnt1_reg));
 475         printk("%s:   cnt2_reg: 0x%08x\n",
 476                core->name,cx_read(ch->cnt2_reg));
 477 }
 478
 479 static char *cx88_pci_irqs[32] = {
 480         "vid", "aud", "ts", "vip", "hst", "5", "6", "tm1",
 481         "src_dma", "dst_dma", "risc_rd_err", "risc_wr_err",
 482         "brdg_err", "src_dma_err", "dst_dma_err", "ipb_dma_err",
 483         "i2c", "i2c_rack", "ir_smp", "gpio0", "gpio1"
 484 };
 485
 486 void cx88_print_irqbits(char *name, char *tag, char **strings,
 487                         u32 bits, u32 mask)
 488 {
 489         unsigned int i;
 490
 491         printk(KERN_DEBUG "%s: %s [0x%x]", name, tag, bits);
 492         for (i = 0; i < 32; i++) {
 493                 if (!(bits & (1 << i)))
 494                         continue;
 495                 if (strings[i])
 496                         printk(" %s", strings[i]);
 497                 else
 498                         printk(" %d", i);
 499                 if (!(mask & (1 << i)))
 500                         continue;
 501                 printk("*");
 502         }
 503         printk("\n");
 504 }
 505
 506 /* ------------------------------------------------------------------ */
 507
 508 int cx88_core_irq(struct cx88_core *core, u32 status)
 509 {
 510         int handled = 0;
 511
 512         if (status & (1<<18)) {
 513                 cx88_ir_irq(core);
 514                 handled++;
 515         }
 516         if (!handled)
 517                 cx88_print_irqbits(core->name, "irq pci",
 518                                    cx88_pci_irqs, status,
 519                                    core->pci_irqmask);
 520         return handled;
 521 }
 522
 523 void cx88_wakeup(struct cx88_core *core,
 524                  struct cx88_dmaqueue *q, u32 count)
 525 {
 526         struct cx88_buffer *buf;
 527         int bc;
 528
 529         for (bc = 0;; bc++) {
 530                 if (list_empty(&q->active))
 531                         break;
 532                 buf = list_entry(q->active.next,
 533                                  struct cx88_buffer, vb.queue);
 534                 /* count comes from the hw and is is 16bit wide --
 535                  * this trick handles wrap-arounds correctly for
 536                  * up to 32767 buffers in flight... */
 537                 if ((s16) (count - buf->count) < 0)
 538                         break;
 539                 do_gettimeofday(&buf->vb.ts);
 540                 dprintk(2,"[%p/%d] wakeup reg=%d buf=%d\n",buf,buf->vb.i,
 541                         count, buf->count);
 542                 buf->vb.state = STATE_DONE;
 543                 list_del(&buf->vb.queue);
 544                 wake_up(&buf->vb.done);
 545         }
 546         if (list_empty(&q->active)) {
 547                 del_timer(&q->timeout);
 548         } else {
 549                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 550         }
 551         if (bc != 1)
 552                 printk("%s: %d buffers handled (should be 1)\n",__FUNCTION__,bc);
 553 }
 554
 555 void cx88_shutdown(struct cx88_core *core)
 556 {
 557         /* disable RISC controller + IRQs */
 558         cx_write(MO_DEV_CNTRL2, 0);
 559
 560         /* stop dma transfers */
 561         cx_write(MO_VID_DMACNTRL, 0x0);
 562         cx_write(MO_AUD_DMACNTRL, 0x0);
 563         cx_write(MO_TS_DMACNTRL, 0x0);
 564         cx_write(MO_VIP_DMACNTRL, 0x0);
 565         cx_write(MO_GPHST_DMACNTRL, 0x0);
 566
 567         /* stop interrupts */
 568         cx_write(MO_PCI_INTMSK, 0x0);
 569         cx_write(MO_VID_INTMSK, 0x0);
 570         cx_write(MO_AUD_INTMSK, 0x0);
 571         cx_write(MO_TS_INTMSK, 0x0);
 572         cx_write(MO_VIP_INTMSK, 0x0);
 573         cx_write(MO_GPHST_INTMSK, 0x0);
 574
 575         /* stop capturing */
 576         cx_write(VID_CAPTURE_CONTROL, 0);
 577 }
 578
 579 int cx88_reset(struct cx88_core *core)
 580 {
 581         dprintk(1,"%s\n",__FUNCTION__);
 582         cx88_shutdown(core);
 583
 584         /* clear irq status */
 585         cx_write(MO_VID_INTSTAT, 0xFFFFFFFF); // Clear PIV int
 586         cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF); // Clear PCI int
 587         cx_write(MO_INT1_STAT,   0xFFFFFFFF); // Clear RISC int
 588
 589         /* wait a bit */
 590         msleep(100);
 591
 592         /* init sram */
 593         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH21], 720*4, 0);
 594         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH22], 128, 0);
 595         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH23], 128, 0);
 596         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH24], 128, 0);
 597         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], 128, 0);
 598         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], 128, 0);
 599         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28], 188*4, 0);
 600
 601         /* misc init ... */
 602         cx_write(MO_INPUT_FORMAT, ((1 << 13) |   // agc enable
 603                                    (1 << 12) |   // agc gain
 604                                    (1 << 11) |   // adaptibe agc
 605                                    (0 << 10) |   // chroma agc
 606                                    (0 <<  9) |   // ckillen
 607                                    (7)));
 608
 609         /* setup image format */
 610         cx_andor(MO_COLOR_CTRL, 0x4000, 0x4000);
 611
 612         /* setup FIFO Threshholds */
 613         cx_write(MO_PDMA_STHRSH,   0x0807);
 614         cx_write(MO_PDMA_DTHRSH,   0x0807);
 615
 616         /* fixes flashing of image */
 617         cx_write(MO_AGC_SYNC_TIP1, 0x0380000F);
 618         cx_write(MO_AGC_BACK_VBI,  0x00E00555);
 619
 620         cx_write(MO_VID_INTSTAT,   0xFFFFFFFF); // Clear PIV int
 621         cx_write(MO_PCI_INTSTAT,   0xFFFFFFFF); // Clear PCI int
 622         cx_write(MO_INT1_STAT,     0xFFFFFFFF); // Clear RISC int
 623
 624         /* Reset on-board parts */
 625         cx_write(MO_SRST_IO, 0);
 626         msleep(10);
 627         cx_write(MO_SRST_IO, 1);
 628
 629         return 0;
 630 }
 631
 632 /* ------------------------------------------------------------------ */
 633
 634 static unsigned int inline norm_swidth(struct cx88_tvnorm *norm)
 635 {
 636         return (norm->id & V4L2_STD_625_50) ? 922 : 754;
 637 }
 638
 639 static unsigned int inline norm_hdelay(struct cx88_tvnorm *norm)
 640 {
 641         return (norm->id & V4L2_STD_625_50) ? 186 : 135;
 642 }
 643
 644 static unsigned int inline norm_vdelay(struct cx88_tvnorm *norm)
 645 {
 646         return (norm->id & V4L2_STD_625_50) ? 0x24 : 0x18;
 647 }
 648
 649 static unsigned int inline norm_fsc8(struct cx88_tvnorm *norm)
 650 {
 651         static const unsigned int ntsc = 28636360;
 652         static const unsigned int pal  = 35468950;
 653         static const unsigned int palm  = 28604892;
 654
 655         if (norm->id & V4L2_STD_PAL_M)
 656                 return palm;
 657
 658         return (norm->id & V4L2_STD_625_50) ? pal : ntsc;
 659 }
 660
 661 static unsigned int inline norm_notchfilter(struct cx88_tvnorm *norm)
 662 {
 663         return (norm->id & V4L2_STD_625_50)
 664                 ? HLNotchFilter135PAL
 665                 : HLNotchFilter135NTSC;
 666 }
 667
 668 static unsigned int inline norm_htotal(struct cx88_tvnorm *norm)
 669 {
 670         /* Should always be Line Draw Time / (4*FSC) */
 671
 672         if (norm->id & V4L2_STD_PAL_M)
 673                 return 909;
 674
 675         return (norm->id & V4L2_STD_625_50) ? 1135 : 910;
 676 }
 677
 678 static unsigned int inline norm_vbipack(struct cx88_tvnorm *norm)
 679 {
 680         return (norm->id & V4L2_STD_625_50) ? 511 : 400;
 681 }
 682
 683 int cx88_set_scale(struct cx88_core *core, unsigned int width, unsigned int height,
 684                    enum v4l2_field field)
 685 {
 686         unsigned int swidth  = norm_swidth(core->tvnorm);
 687         unsigned int sheight = norm_maxh(core->tvnorm);
 688         u32 value;
 689
 690         dprintk(1,"set_scale: %dx%d [%s%s,%s]\n", width, height,
 691                 V4L2_FIELD_HAS_TOP(field)    ? "T" : "",
 692                 V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
 693                 core->tvnorm->name);
 694         if (!V4L2_FIELD_HAS_BOTH(field))
 695                 height *= 2;
 696
 697         // recalc H delay and scale registers
 698         value = (width * norm_hdelay(core->tvnorm)) / swidth;
 699         value &= 0x3fe;
 700         cx_write(MO_HDELAY_EVEN,  value);
 701         cx_write(MO_HDELAY_ODD,   value);
 702         dprintk(1,"set_scale: hdelay  0x%04x\n", value);
 703
 704         value = (swidth * 4096 / width) - 4096;
 705         cx_write(MO_HSCALE_EVEN,  value);
 706         cx_write(MO_HSCALE_ODD,   value);
 707         dprintk(1,"set_scale: hscale  0x%04x\n", value);
 708
 709         cx_write(MO_HACTIVE_EVEN, width);
 710         cx_write(MO_HACTIVE_ODD,  width);
 711         dprintk(1,"set_scale: hactive 0x%04x\n", width);
 712
 713         // recalc V scale Register (delay is constant)
 714         cx_write(MO_VDELAY_EVEN, norm_vdelay(core->tvnorm));
 715         cx_write(MO_VDELAY_ODD,  norm_vdelay(core->tvnorm));
 716         dprintk(1,"set_scale: vdelay  0x%04x\n", norm_vdelay(core->tvnorm));
 717
 718         value = (0x10000 - (sheight * 512 / height - 512)) & 0x1fff;
 719         cx_write(MO_VSCALE_EVEN,  value);
 720         cx_write(MO_VSCALE_ODD,   value);
 721         dprintk(1,"set_scale: vscale  0x%04x\n", value);
 722
 723         cx_write(MO_VACTIVE_EVEN, sheight);
 724         cx_write(MO_VACTIVE_ODD,  sheight);
 725         dprintk(1,"set_scale: vactive 0x%04x\n", sheight);
 726
 727         // setup filters
 728         value = 0;
 729         value |= (1 << 19);        // CFILT (default)
 730         if (core->tvnorm->id & V4L2_STD_SECAM) {
 731                 value |= (1 << 15);
 732                 value |= (1 << 16);
 733         }
 734         if (INPUT(core->input)->type == CX88_VMUX_SVIDEO)
 735                 value |= (1 << 13) | (1 << 5);
 736         if (V4L2_FIELD_INTERLACED == field)
 737                 value |= (1 << 3); // VINT (interlaced vertical scaling)
 738         if (width < 385)
 739                 value |= (1 << 0); // 3-tap interpolation
 740         if (width < 193)
 741                 value |= (1 << 1); // 5-tap interpolation
 742         if (nocomb)
 743                 value |= (3 << 5); // disable comb filter
 744
 745         cx_write(MO_FILTER_EVEN,  value);
 746         cx_write(MO_FILTER_ODD,   value);
 747         dprintk(1,"set_scale: filter  0x%04x\n", value);
 748
 749         return 0;
 750 }
 751
 752 static const u32 xtal = 28636363;
 753
 754 static int set_pll(struct cx88_core *core, int prescale, u32 ofreq)
 755 {
 756         static u32 pre[] = { 0, 0, 0, 3, 2, 1 };
 757         u64 pll;
 758         u32 reg;
 759         int i;
 760
 761         if (prescale < 2)
 762                 prescale = 2;
 763         if (prescale > 5)
 764                 prescale = 5;
 765
 766         pll = ofreq * 8 * prescale * (u64)(1 << 20);
 767         do_div(pll,xtal);
 768         reg = (pll & 0x3ffffff) | (pre[prescale] << 26);
 769         if (((reg >> 20) & 0x3f) < 14) {
 770                 printk("%s/0: pll out of range\n",core->name);
 771                 return -1;
 772         }
 773
 774         dprintk(1,"set_pll:    MO_PLL_REG       0x%08x [old=0x%08x,freq=%d]\n",
 775                 reg, cx_read(MO_PLL_REG), ofreq);
 776         cx_write(MO_PLL_REG, reg);
 777         for (i = 0; i < 100; i++) {
 778                 reg = cx_read(MO_DEVICE_STATUS);
 779                 if (reg & (1<<2)) {
 780                         dprintk(1,"pll locked [pre=%d,ofreq=%d]\n",
 781                                 prescale,ofreq);
 782                         return 0;
 783                 }
 784                 dprintk(1,"pll not locked yet, waiting ...\n");
 785                 msleep(10);
 786         }
 787         dprintk(1,"pll NOT locked [pre=%d,ofreq=%d]\n",prescale,ofreq);
 788         return -1;
 789 }
 790
 791 int cx88_start_audio_dma(struct cx88_core *core)
 792 {
 793         /* constant 128 made buzz in analog Nicam-stereo for bigger fifo_size */
 794         int bpl = cx88_sram_channels[SRAM_CH25].fifo_size/4;
 795
 796         /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
 797         if (cx_read(MO_AUD_DMACNTRL) & 0x10)
 798                 return 0;
 799
 800         /* setup fifo + format */
 801         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], bpl, 0);
 802         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], bpl, 0);
 803
 804         cx_write(MO_AUDD_LNGTH, bpl); /* fifo bpl size */
 805         cx_write(MO_AUDR_LNGTH, bpl); /* fifo bpl size */
 806
 807         /* start dma */
 808         cx_write(MO_AUD_DMACNTRL, 0x0003); /* Up and Down fifo enable */
 809
 810         return 0;
 811 }
 812
 813 int cx88_stop_audio_dma(struct cx88_core *core)
 814 {
 815         /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
 816         if (cx_read(MO_AUD_DMACNTRL) & 0x10)
 817                 return 0;
 818
 819         /* stop dma */
 820         cx_write(MO_AUD_DMACNTRL, 0x0000);
 821
 822         return 0;
 823 }
 824
 825 static int set_tvaudio(struct cx88_core *core)
 826 {
 827         struct cx88_tvnorm *norm = core->tvnorm;
 828
 829         if (CX88_VMUX_TELEVISION != INPUT(core->input)->type)
 830                 return 0;
 831
 832         if (V4L2_STD_PAL_BG & norm->id) {
 833                 core->tvaudio = WW_BG;
 834
 835         } else if (V4L2_STD_PAL_DK & norm->id) {
 836                 core->tvaudio = WW_DK;
 837
 838         } else if (V4L2_STD_PAL_I & norm->id) {
 839                 core->tvaudio = WW_I;
 840
 841         } else if (V4L2_STD_SECAM_L & norm->id) {
 842                 core->tvaudio = WW_L;
 843
 844         } else if (V4L2_STD_SECAM_DK & norm->id) {
 845                 core->tvaudio = WW_DK;
 846
 847         } else if ((V4L2_STD_NTSC_M & norm->id) ||
 848                    (V4L2_STD_PAL_M  & norm->id)) {
 849                 core->tvaudio = WW_BTSC;
 850
 851         } else if (V4L2_STD_NTSC_M_JP & norm->id) {
 852                 core->tvaudio = WW_EIAJ;
 853
 854         } else {
 855                 printk("%s/0: tvaudio support needs work for this tv norm [%s], sorry\n",
 856                        core->name, norm->name);
 857                 core->tvaudio = 0;
 858                 return 0;
 859         }
 860
 861         cx_andor(MO_AFECFG_IO, 0x1f, 0x0);
 862         cx88_set_tvaudio(core);
 863         /* cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO); */
 864
 865 /*
 866    This should be needed only on cx88-alsa. It seems that some cx88 chips have
 867    bugs and does require DMA enabled for it to work.
 868  */
 869         cx88_start_audio_dma(core);
 870         return 0;
 871 }
 872
 873
 874
 875 int cx88_set_tvnorm(struct cx88_core *core, struct cx88_tvnorm *norm)
 876 {
 877         u32 fsc8;
 878         u32 adc_clock;
 879         u32 vdec_clock;
 880         u32 step_db,step_dr;
 881         u64 tmp64;
 882         u32 bdelay,agcdelay,htotal;
 883
 884         core->tvnorm = norm;
 885         fsc8       = norm_fsc8(norm);
 886         adc_clock  = xtal;
 887         vdec_clock = fsc8;
 888         step_db    = fsc8;
 889         step_dr    = fsc8;
 890
 891         if (norm->id & V4L2_STD_SECAM) {
 892                 step_db = 4250000 * 8;
 893                 step_dr = 4406250 * 8;
 894         }
 895
 896         dprintk(1,"set_tvnorm: \"%s\" fsc8=%d adc=%d vdec=%d db/dr=%d/%d\n",
 897                 norm->name, fsc8, adc_clock, vdec_clock, step_db, step_dr);
 898         set_pll(core,2,vdec_clock);
 899
 900         dprintk(1,"set_tvnorm: MO_INPUT_FORMAT  0x%08x [old=0x%08x]\n",
 901                 norm->cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
 902         cx_andor(MO_INPUT_FORMAT, 0xf, norm->cxiformat);
 903
 904         // FIXME: as-is from DScaler
 905         dprintk(1,"set_tvnorm: MO_OUTPUT_FORMAT 0x%08x [old=0x%08x]\n",
 906                 norm->cxoformat, cx_read(MO_OUTPUT_FORMAT));
 907         cx_write(MO_OUTPUT_FORMAT, norm->cxoformat);
 908
 909         // MO_SCONV_REG = adc clock / video dec clock * 2^17
 910         tmp64  = adc_clock * (u64)(1 << 17);
 911         do_div(tmp64, vdec_clock);
 912         dprintk(1,"set_tvnorm: MO_SCONV_REG     0x%08x [old=0x%08x]\n",
 913                 (u32)tmp64, cx_read(MO_SCONV_REG));
 914         cx_write(MO_SCONV_REG, (u32)tmp64);
 915
 916         // MO_SUB_STEP = 8 * fsc / video dec clock * 2^22
 917         tmp64  = step_db * (u64)(1 << 22);
 918         do_div(tmp64, vdec_clock);
 919         dprintk(1,"set_tvnorm: MO_SUB_STEP      0x%08x [old=0x%08x]\n",
 920                 (u32)tmp64, cx_read(MO_SUB_STEP));
 921         cx_write(MO_SUB_STEP, (u32)tmp64);
 922
 923         // MO_SUB_STEP_DR = 8 * 4406250 / video dec clock * 2^22
 924         tmp64  = step_dr * (u64)(1 << 22);
 925         do_div(tmp64, vdec_clock);
 926         dprintk(1,"set_tvnorm: MO_SUB_STEP_DR   0x%08x [old=0x%08x]\n",
 927                 (u32)tmp64, cx_read(MO_SUB_STEP_DR));
 928         cx_write(MO_SUB_STEP_DR, (u32)tmp64);
 929
 930         // bdelay + agcdelay
 931         bdelay   = vdec_clock * 65 / 20000000 + 21;
 932         agcdelay = vdec_clock * 68 / 20000000 + 15;
 933         dprintk(1,"set_tvnorm: MO_AGC_BURST     0x%08x [old=0x%08x,bdelay=%d,agcdelay=%d]\n",
 934                 (bdelay << 8) | agcdelay, cx_read(MO_AGC_BURST), bdelay, agcdelay);
 935         cx_write(MO_AGC_BURST, (bdelay << 8) | agcdelay);
 936
 937         // htotal
 938         tmp64 = norm_htotal(norm) * (u64)vdec_clock;
 939         do_div(tmp64, fsc8);
 940         htotal = (u32)tmp64 | (norm_notchfilter(norm) << 11);
 941         dprintk(1,"set_tvnorm: MO_HTOTAL        0x%08x [old=0x%08x,htotal=%d]\n",
 942                 htotal, cx_read(MO_HTOTAL), (u32)tmp64);
 943         cx_write(MO_HTOTAL, htotal);
 944
 945         // vbi stuff, set vbi offset to 10 (for 20 Clk*2 pixels), this makes
 946         // the effective vbi offset ~244 samples, the same as the Bt8x8
 947         cx_write(MO_VBI_PACKET, (10<<11) | norm_vbipack(norm));
 948
 949         // this is needed as well to set all tvnorm parameter
 950         cx88_set_scale(core, 320, 240, V4L2_FIELD_INTERLACED);
 951
 952         // audio
 953         set_tvaudio(core);
 954
 955         // tell i2c chips
 956         cx88_call_i2c_clients(core,VIDIOC_S_STD,&norm->id);
 957
 958         // done
 959         return 0;
 960 }
 961
 962 /* ------------------------------------------------------------------ */
 963
 964 static int cx88_pci_quirks(char *name, struct pci_dev *pci)
 965 {
 966         unsigned int lat = UNSET;
 967         u8 ctrl = 0;
 968         u8 value;
 969
 970         /* check pci quirks */
 971         if (pci_pci_problems & PCIPCI_TRITON) {
 972                 printk(KERN_INFO "%s: quirk: PCIPCI_TRITON -- set TBFX\n",
 973                        name);
 974                 ctrl |= CX88X_EN_TBFX;
 975         }
 976         if (pci_pci_problems & PCIPCI_NATOMA) {
 977                 printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA -- set TBFX\n",
 978                        name);
 979                 ctrl |= CX88X_EN_TBFX;
 980         }
 981         if (pci_pci_problems & PCIPCI_VIAETBF) {
 982                 printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF -- set TBFX\n",
 983                        name);
 984                 ctrl |= CX88X_EN_TBFX;
 985         }
 986         if (pci_pci_problems & PCIPCI_VSFX) {
 987                 printk(KERN_INFO "%s: quirk: PCIPCI_VSFX -- set VSFX\n",
 988                        name);
 989                 ctrl |= CX88X_EN_VSFX;
 990         }
 991 #ifdef PCIPCI_ALIMAGIK
 992         if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 993                 printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 994                        name);
 995                 lat = 0x0A;
 996         }
 997 #endif
 998
 999         /* check insmod options */
1000         if (UNSET != latency)
1001                 lat = latency;
1002
1003         /* apply stuff */
1004         if (ctrl) {
1005                 pci_read_config_byte(pci, CX88X_DEVCTRL, &value);
1006                 value |= ctrl;
1007                 pci_write_config_byte(pci, CX88X_DEVCTRL, value);
1008         }
1009         if (UNSET != lat) {
1010                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
1011                        name, latency);
1012                 pci_write_config_byte(pci, PCI_LATENCY_TIMER, latency);
1013         }
1014         return 0;
1015 }
1016
1017 /* ------------------------------------------------------------------ */
1018
1019 struct video_device *cx88_vdev_init(struct cx88_core *core,
1020                                     struct pci_dev *pci,
1021                                     struct video_device *template,
1022                                     char *type)
1023 {
1024         struct video_device *vfd;
1025
1026         vfd = video_device_alloc();
1027         if (NULL == vfd)
1028                 return NULL;
1029         *vfd = *template;
1030         vfd->minor   = -1;
1031         vfd->dev     = &pci->dev;
1032         vfd->release = video_device_release;
1033         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
1034                  core->name, type, cx88_boards[core->board].name);
1035         return vfd;
1036 }
1037
1038 static int get_ressources(struct cx88_core *core, struct pci_dev *pci)
1039 {
1040         if (request_mem_region(pci_resource_start(pci,0),
1041                                pci_resource_len(pci,0),
1042                                core->name))
1043                 return 0;
1044         printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
1045                core->name,(unsigned long long)pci_resource_start(pci,0));
1046         return -EBUSY;
1047 }
1048
1049 struct cx88_core* cx88_core_get(struct pci_dev *pci)
1050 {
1051         struct cx88_core *core;
1052         struct list_head *item;
1053         int i;
1054
1055         mutex_lock(&devlist);
1056         list_for_each(item,&cx88_devlist) {
1057                 core = list_entry(item, struct cx88_core, devlist);
1058                 if (pci->bus->number != core->pci_bus)
1059                         continue;
1060                 if (PCI_SLOT(pci->devfn) != core->pci_slot)
1061                         continue;
1062
1063                 if (0 != get_ressources(core,pci))
1064                         goto fail_unlock;
1065                 atomic_inc(&core->refcount);
1066                 mutex_unlock(&devlist);
1067                 return core;
1068         }
1069         core = kzalloc(sizeof(*core),GFP_KERNEL);
1070         if (NULL == core)
1071                 goto fail_unlock;
1072
1073         atomic_inc(&core->refcount);
1074         core->pci_bus  = pci->bus->number;
1075         core->pci_slot = PCI_SLOT(pci->devfn);
1076         core->pci_irqmask = 0x00fc00;
1077         mutex_init(&core->lock);
1078
1079         core->nr = cx88_devcount++;
1080         sprintf(core->name,"cx88[%d]",core->nr);
1081         if (0 != get_ressources(core,pci)) {
1082                 printk(KERN_ERR "CORE %s No more PCI ressources for "
1083                         "subsystem: %04x:%04x, board: %s\n",
1084                         core->name,pci->subsystem_vendor,
1085                         pci->subsystem_device,
1086                         cx88_boards[core->board].name);
1087
1088                 cx88_devcount--;
1089                 goto fail_free;
1090         }
1091         list_add_tail(&core->devlist,&cx88_devlist);
1092
1093         /* PCI stuff */
1094         cx88_pci_quirks(core->name, pci);
1095         core->lmmio = ioremap(pci_resource_start(pci,0),
1096                               pci_resource_len(pci,0));
1097         core->bmmio = (u8 __iomem *)core->lmmio;
1098
1099         /* board config */
1100         core->board = UNSET;
1101         if (card[core->nr] < cx88_bcount)
1102                 core->board = card[core->nr];
1103         for (i = 0; UNSET == core->board  &&  i < cx88_idcount; i++)
1104                 if (pci->subsystem_vendor == cx88_subids[i].subvendor &&
1105                     pci->subsystem_device == cx88_subids[i].subdevice)
1106                         core->board = cx88_subids[i].card;
1107         if (UNSET == core->board) {
1108                 core->board = CX88_BOARD_UNKNOWN;
1109                 cx88_card_list(core,pci);
1110         }
1111         printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1112                 core->name,pci->subsystem_vendor,
1113                 pci->subsystem_device,cx88_boards[core->board].name,
1114                 core->board, card[core->nr] == core->board ?
1115                 "insmod option" : "autodetected");
1116
1117         core->tuner_type = tuner[core->nr];
1118         core->radio_type = radio[core->nr];
1119         if (UNSET == core->tuner_type)
1120                 core->tuner_type = cx88_boards[core->board].tuner_type;
1121         if (UNSET == core->radio_type)
1122                 core->radio_type = cx88_boards[core->board].radio_type;
1123         if (!core->tuner_addr)
1124                 core->tuner_addr = cx88_boards[core->board].tuner_addr;
1125         if (!core->radio_addr)
1126                 core->radio_addr = cx88_boards[core->board].radio_addr;
1127
1128         printk(KERN_INFO "TV tuner %d at 0x%02x, Radio tuner %d at 0x%02x\n",
1129                 core->tuner_type, core->tuner_addr<<1,
1130                 core->radio_type, core->radio_addr<<1);
1131
1132         core->tda9887_conf = cx88_boards[core->board].tda9887_conf;
1133
1134         /* init hardware */
1135         cx88_reset(core);
1136         cx88_card_setup_pre_i2c(core);
1137         cx88_i2c_init(core,pci);
1138         cx88_call_i2c_clients (core, TUNER_SET_STANDBY, NULL);
1139         cx88_card_setup(core);
1140         cx88_ir_init(core,pci);
1141
1142         mutex_unlock(&devlist);
1143         return core;
1144
1145 fail_free:
1146         kfree(core);
1147 fail_unlock:
1148         mutex_unlock(&devlist);
1149         return NULL;
1150 }
1151
1152 void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
1153 {
1154         release_mem_region(pci_resource_start(pci,0),
1155                            pci_resource_len(pci,0));
1156
1157         if (!atomic_dec_and_test(&core->refcount))
1158                 return;
1159
1160         mutex_lock(&devlist);
1161         cx88_ir_fini(core);
1162         if (0 == core->i2c_rc)
1163                 i2c_bit_del_bus(&core->i2c_adap);
1164         list_del(&core->devlist);
1165         iounmap(core->lmmio);
1166         cx88_devcount--;
1167         mutex_unlock(&devlist);
1168         kfree(core);
1169 }
1170
1171 /* ------------------------------------------------------------------ */
1172
1173 EXPORT_SYMBOL(cx88_print_irqbits);
1174
1175 EXPORT_SYMBOL(cx88_core_irq);
1176 EXPORT_SYMBOL(cx88_wakeup);
1177 EXPORT_SYMBOL(cx88_reset);
1178 EXPORT_SYMBOL(cx88_shutdown);
1179
1180 EXPORT_SYMBOL(cx88_risc_buffer);
1181 EXPORT_SYMBOL(cx88_risc_databuffer);
1182 EXPORT_SYMBOL(cx88_risc_stopper);
1183 EXPORT_SYMBOL(cx88_free_buffer);
1184
1185 EXPORT_SYMBOL(cx88_sram_channels);
1186 EXPORT_SYMBOL(cx88_sram_channel_setup);
1187 EXPORT_SYMBOL(cx88_sram_channel_dump);
1188
1189 EXPORT_SYMBOL(cx88_set_tvnorm);
1190 EXPORT_SYMBOL(cx88_set_scale);
1191
1192 EXPORT_SYMBOL(cx88_vdev_init);
1193 EXPORT_SYMBOL(cx88_core_get);
1194 EXPORT_SYMBOL(cx88_core_put);
1195
1196 /*
1197  * Local variables:
1198  * c-basic-offset: 8
1199  * End:
1200  * 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
1201  */