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  * (c) 2005-2006 Mauro Carvalho Chehab <mchehab@infradead.org>
   9  *     - Multituner support
  10  *     - video_ioctl2 conversion
  11  *     - PAL/M fixes
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License as published by
  15  *  the Free Software Foundation; either version 2 of the License, or
  16  *  (at your option) any later version.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software
  25  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  */
  27
  28 #include <linux/init.h>
  29 #include <linux/list.h>
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/kernel.h>
  33 #include <linux/slab.h>
  34 #include <linux/kmod.h>
  35 #include <linux/sound.h>
  36 #include <linux/interrupt.h>
  37 #include <linux/pci.h>
  38 #include <linux/delay.h>
  39 #include <linux/videodev2.h>
  40 #include <linux/mutex.h>
  41
  42 #include "cx88.h"
  43 #include <media/v4l2-common.h>
  44
  45 MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
  46 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  47 MODULE_LICENSE("GPL");
  48
  49 /* ------------------------------------------------------------------ */
  50
  51 static unsigned int core_debug = 0;
  52 module_param(core_debug,int,0644);
  53 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  54
  55 static unsigned int latency = UNSET;
  56 module_param(latency,int,0444);
  57 MODULE_PARM_DESC(latency,"pci latency timer");
  58
  59 static unsigned int tuner[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  60 static unsigned int radio[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  61 static unsigned int card[]  = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  62
  63 module_param_array(tuner, int, NULL, 0444);
  64 module_param_array(radio, int, NULL, 0444);
  65 module_param_array(card,  int, NULL, 0444);
  66
  67 MODULE_PARM_DESC(tuner,"tuner type");
  68 MODULE_PARM_DESC(radio,"radio tuner type");
  69 MODULE_PARM_DESC(card,"card type");
  70
  71 static unsigned int nicam = 0;
  72 module_param(nicam,int,0644);
  73 MODULE_PARM_DESC(nicam,"tv audio is nicam");
  74
  75 static unsigned int nocomb = 0;
  76 module_param(nocomb,int,0644);
  77 MODULE_PARM_DESC(nocomb,"disable comb filter");
  78
  79 #define dprintk(level,fmt, arg...)      if (core_debug >= level)        \
  80         printk(KERN_DEBUG "%s: " fmt, core->name , ## arg)
  81
  82 static unsigned int cx88_devcount;
  83 static LIST_HEAD(cx88_devlist);
  84 static DEFINE_MUTEX(devlist);
  85
  86 #define NO_SYNC_LINE (-1U)
  87
  88 static u32* cx88_risc_field(u32 *rp, struct scatterlist *sglist,
  89                             unsigned int offset, u32 sync_line,
  90                             unsigned int bpl, unsigned int padding,
  91                             unsigned int lines)
  92 {
  93         struct scatterlist *sg;
  94         unsigned int line,todo;
  95
  96         /* sync instruction */
  97         if (sync_line != NO_SYNC_LINE)
  98                 *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
  99
 100         /* scan lines */
 101         sg = sglist;
 102         for (line = 0; line < lines; line++) {
 103                 while (offset && offset >= sg_dma_len(sg)) {
 104                         offset -= sg_dma_len(sg);
 105                         sg++;
 106                 }
 107                 if (bpl <= sg_dma_len(sg)-offset) {
 108                         /* fits into current chunk */
 109                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|RISC_EOL|bpl);
 110                         *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
 111                         offset+=bpl;
 112                 } else {
 113                         /* scanline needs to be split */
 114                         todo = bpl;
 115                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|
 116                                             (sg_dma_len(sg)-offset));
 117                         *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
 118                         todo -= (sg_dma_len(sg)-offset);
 119                         offset = 0;
 120                         sg++;
 121                         while (todo > sg_dma_len(sg)) {
 122                                 *(rp++)=cpu_to_le32(RISC_WRITE|
 123                                                     sg_dma_len(sg));
 124                                 *(rp++)=cpu_to_le32(sg_dma_address(sg));
 125                                 todo -= sg_dma_len(sg);
 126                                 sg++;
 127                         }
 128                         *(rp++)=cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
 129                         *(rp++)=cpu_to_le32(sg_dma_address(sg));
 130                         offset += todo;
 131                 }
 132                 offset += padding;
 133         }
 134
 135         return rp;
 136 }
 137
 138 int cx88_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 139                      struct scatterlist *sglist,
 140                      unsigned int top_offset, unsigned int bottom_offset,
 141                      unsigned int bpl, unsigned int padding, unsigned int lines)
 142 {
 143         u32 instructions,fields;
 144         u32 *rp;
 145         int rc;
 146
 147         fields = 0;
 148         if (UNSET != top_offset)
 149                 fields++;
 150         if (UNSET != bottom_offset)
 151                 fields++;
 152
 153         /* estimate risc mem: worst case is one write per page border +
 154            one write per scan line + syncs + jump (all 2 dwords).  Padding
 155            can cause next bpl to start close to a page border.  First DMA
 156            region may be smaller than PAGE_SIZE */
 157         instructions  = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines);
 158         instructions += 2;
 159         if ((rc = btcx_riscmem_alloc(pci,risc,instructions*8)) < 0)
 160                 return rc;
 161
 162         /* write risc instructions */
 163         rp = risc->cpu;
 164         if (UNSET != top_offset)
 165                 rp = cx88_risc_field(rp, sglist, top_offset, 0,
 166                                      bpl, padding, lines);
 167         if (UNSET != bottom_offset)
 168                 rp = cx88_risc_field(rp, sglist, bottom_offset, 0x200,
 169                                      bpl, padding, lines);
 170
 171         /* save pointer to jmp instruction address */
 172         risc->jmp = rp;
 173         BUG_ON((risc->jmp - risc->cpu + 2) * sizeof (*risc->cpu) > risc->size);
 174         return 0;
 175 }
 176
 177 int cx88_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 178                          struct scatterlist *sglist, unsigned int bpl,
 179                          unsigned int lines)
 180 {
 181         u32 instructions;
 182         u32 *rp;
 183         int rc;
 184
 185         /* estimate risc mem: worst case is one write per page border +
 186            one write per scan line + syncs + jump (all 2 dwords).  Here
 187            there is no padding and no sync.  First DMA region may be smaller
 188            than PAGE_SIZE */
 189         instructions  = 1 + (bpl * lines) / PAGE_SIZE + lines;
 190         instructions += 1;
 191         if ((rc = btcx_riscmem_alloc(pci,risc,instructions*8)) < 0)
 192                 return rc;
 193
 194         /* write risc instructions */
 195         rp = risc->cpu;
 196         rp = cx88_risc_field(rp, sglist, 0, NO_SYNC_LINE, bpl, 0, lines);
 197
 198         /* save pointer to jmp instruction address */
 199         risc->jmp = rp;
 200         BUG_ON((risc->jmp - risc->cpu + 2) * sizeof (*risc->cpu) > risc->size);
 201         return 0;
 202 }
 203
 204 int cx88_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
 205                       u32 reg, u32 mask, u32 value)
 206 {
 207         u32 *rp;
 208         int rc;
 209
 210         if ((rc = btcx_riscmem_alloc(pci, risc, 4*16)) < 0)
 211                 return rc;
 212
 213         /* write risc instructions */
 214         rp = risc->cpu;
 215         *(rp++) = cpu_to_le32(RISC_WRITECR  | RISC_IRQ2 | RISC_IMM);
 216         *(rp++) = cpu_to_le32(reg);
 217         *(rp++) = cpu_to_le32(value);
 218         *(rp++) = cpu_to_le32(mask);
 219         *(rp++) = cpu_to_le32(RISC_JUMP);
 220         *(rp++) = cpu_to_le32(risc->dma);
 221         return 0;
 222 }
 223
 224 void
 225 cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf)
 226 {
 227         BUG_ON(in_interrupt());
 228         videobuf_waiton(&buf->vb,0,0);
 229         videobuf_dma_unmap(q, &buf->vb.dma);
 230         videobuf_dma_free(&buf->vb.dma);
 231         btcx_riscmem_free((struct pci_dev *)q->dev, &buf->risc);
 232         buf->vb.state = STATE_NEEDS_INIT;
 233 }
 234
 235 /* ------------------------------------------------------------------ */
 236 /* our SRAM memory layout                                             */
 237
 238 /* we are going to put all thr risc programs into host memory, so we
 239  * can use the whole SDRAM for the DMA fifos.  To simplify things, we
 240  * use a static memory layout.  That surely will waste memory in case
 241  * we don't use all DMA channels at the same time (which will be the
 242  * case most of the time).  But that still gives us enougth FIFO space
 243  * to be able to deal with insane long pci latencies ...
 244  *
 245  * FIFO space allocations:
 246  *    channel  21    (y video)  - 10.0k
 247  *    channel  22    (u video)  -  2.0k
 248  *    channel  23    (v video)  -  2.0k
 249  *    channel  24    (vbi)      -  4.0k
 250  *    channels 25+26 (audio)    -  4.0k
 251  *    channel  28    (mpeg)     -  4.0k
 252  *    TOTAL                     = 29.0k
 253  *
 254  * Every channel has 160 bytes control data (64 bytes instruction
 255  * queue and 6 CDT entries), which is close to 2k total.
 256  *
 257  * Address layout:
 258  *    0x0000 - 0x03ff    CMDs / reserved
 259  *    0x0400 - 0x0bff    instruction queues + CDs
 260  *    0x0c00 -           FIFOs
 261  */
 262
 263 struct sram_channel cx88_sram_channels[] = {
 264         [SRAM_CH21] = {
 265                 .name       = "video y / packed",
 266                 .cmds_start = 0x180040,
 267                 .ctrl_start = 0x180400,
 268                 .cdt        = 0x180400 + 64,
 269                 .fifo_start = 0x180c00,
 270                 .fifo_size  = 0x002800,
 271                 .ptr1_reg   = MO_DMA21_PTR1,
 272                 .ptr2_reg   = MO_DMA21_PTR2,
 273                 .cnt1_reg   = MO_DMA21_CNT1,
 274                 .cnt2_reg   = MO_DMA21_CNT2,
 275         },
 276         [SRAM_CH22] = {
 277                 .name       = "video u",
 278                 .cmds_start = 0x180080,
 279                 .ctrl_start = 0x1804a0,
 280                 .cdt        = 0x1804a0 + 64,
 281                 .fifo_start = 0x183400,
 282                 .fifo_size  = 0x000800,
 283                 .ptr1_reg   = MO_DMA22_PTR1,
 284                 .ptr2_reg   = MO_DMA22_PTR2,
 285                 .cnt1_reg   = MO_DMA22_CNT1,
 286                 .cnt2_reg   = MO_DMA22_CNT2,
 287         },
 288         [SRAM_CH23] = {
 289                 .name       = "video v",
 290                 .cmds_start = 0x1800c0,
 291                 .ctrl_start = 0x180540,
 292                 .cdt        = 0x180540 + 64,
 293                 .fifo_start = 0x183c00,
 294                 .fifo_size  = 0x000800,
 295                 .ptr1_reg   = MO_DMA23_PTR1,
 296                 .ptr2_reg   = MO_DMA23_PTR2,
 297                 .cnt1_reg   = MO_DMA23_CNT1,
 298                 .cnt2_reg   = MO_DMA23_CNT2,
 299         },
 300         [SRAM_CH24] = {
 301                 .name       = "vbi",
 302                 .cmds_start = 0x180100,
 303                 .ctrl_start = 0x1805e0,
 304                 .cdt        = 0x1805e0 + 64,
 305                 .fifo_start = 0x184400,
 306                 .fifo_size  = 0x001000,
 307                 .ptr1_reg   = MO_DMA24_PTR1,
 308                 .ptr2_reg   = MO_DMA24_PTR2,
 309                 .cnt1_reg   = MO_DMA24_CNT1,
 310                 .cnt2_reg   = MO_DMA24_CNT2,
 311         },
 312         [SRAM_CH25] = {
 313                 .name       = "audio from",
 314                 .cmds_start = 0x180140,
 315                 .ctrl_start = 0x180680,
 316                 .cdt        = 0x180680 + 64,
 317                 .fifo_start = 0x185400,
 318                 .fifo_size  = 0x001000,
 319                 .ptr1_reg   = MO_DMA25_PTR1,
 320                 .ptr2_reg   = MO_DMA25_PTR2,
 321                 .cnt1_reg   = MO_DMA25_CNT1,
 322                 .cnt2_reg   = MO_DMA25_CNT2,
 323         },
 324         [SRAM_CH26] = {
 325                 .name       = "audio to",
 326                 .cmds_start = 0x180180,
 327                 .ctrl_start = 0x180720,
 328                 .cdt        = 0x180680 + 64,  /* same as audio IN */
 329                 .fifo_start = 0x185400,       /* same as audio IN */
 330                 .fifo_size  = 0x001000,       /* same as audio IN */
 331                 .ptr1_reg   = MO_DMA26_PTR1,
 332                 .ptr2_reg   = MO_DMA26_PTR2,
 333                 .cnt1_reg   = MO_DMA26_CNT1,
 334                 .cnt2_reg   = MO_DMA26_CNT2,
 335         },
 336         [SRAM_CH28] = {
 337                 .name       = "mpeg",
 338                 .cmds_start = 0x180200,
 339                 .ctrl_start = 0x1807C0,
 340                 .cdt        = 0x1807C0 + 64,
 341                 .fifo_start = 0x186400,
 342                 .fifo_size  = 0x001000,
 343                 .ptr1_reg   = MO_DMA28_PTR1,
 344                 .ptr2_reg   = MO_DMA28_PTR2,
 345                 .cnt1_reg   = MO_DMA28_CNT1,
 346                 .cnt2_reg   = MO_DMA28_CNT2,
 347         },
 348 };
 349
 350 int cx88_sram_channel_setup(struct cx88_core *core,
 351                             struct sram_channel *ch,
 352                             unsigned int bpl, u32 risc)
 353 {
 354         unsigned int i,lines;
 355         u32 cdt;
 356
 357         bpl   = (bpl + 7) & ~7; /* alignment */
 358         cdt   = ch->cdt;
 359         lines = ch->fifo_size / bpl;
 360         if (lines > 6)
 361                 lines = 6;
 362         BUG_ON(lines < 2);
 363
 364         /* write CDT */
 365         for (i = 0; i < lines; i++)
 366                 cx_write(cdt + 16*i, ch->fifo_start + bpl*i);
 367
 368         /* write CMDS */
 369         cx_write(ch->cmds_start +  0, risc);
 370         cx_write(ch->cmds_start +  4, cdt);
 371         cx_write(ch->cmds_start +  8, (lines*16) >> 3);
 372         cx_write(ch->cmds_start + 12, ch->ctrl_start);
 373         cx_write(ch->cmds_start + 16, 64 >> 2);
 374         for (i = 20; i < 64; i += 4)
 375                 cx_write(ch->cmds_start + i, 0);
 376
 377         /* fill registers */
 378         cx_write(ch->ptr1_reg, ch->fifo_start);
 379         cx_write(ch->ptr2_reg, cdt);
 380         cx_write(ch->cnt1_reg, (bpl >> 3) -1);
 381         cx_write(ch->cnt2_reg, (lines*16) >> 3);
 382
 383         dprintk(2,"sram setup %s: bpl=%d lines=%d\n", ch->name, bpl, lines);
 384         return 0;
 385 }
 386
 387 /* ------------------------------------------------------------------ */
 388 /* debug helper code                                                  */
 389
 390 static int cx88_risc_decode(u32 risc)
 391 {
 392         static char *instr[16] = {
 393                 [ RISC_SYNC    >> 28 ] = "sync",
 394                 [ RISC_WRITE   >> 28 ] = "write",
 395                 [ RISC_WRITEC  >> 28 ] = "writec",
 396                 [ RISC_READ    >> 28 ] = "read",
 397                 [ RISC_READC   >> 28 ] = "readc",
 398                 [ RISC_JUMP    >> 28 ] = "jump",
 399                 [ RISC_SKIP    >> 28 ] = "skip",
 400                 [ RISC_WRITERM >> 28 ] = "writerm",
 401                 [ RISC_WRITECM >> 28 ] = "writecm",
 402                 [ RISC_WRITECR >> 28 ] = "writecr",
 403         };
 404         static int incr[16] = {
 405                 [ RISC_WRITE   >> 28 ] = 2,
 406                 [ RISC_JUMP    >> 28 ] = 2,
 407                 [ RISC_WRITERM >> 28 ] = 3,
 408                 [ RISC_WRITECM >> 28 ] = 3,
 409                 [ RISC_WRITECR >> 28 ] = 4,
 410         };
 411         static char *bits[] = {
 412                 "12",   "13",   "14",   "resync",
 413                 "cnt0", "cnt1", "18",   "19",
 414                 "20",   "21",   "22",   "23",
 415                 "irq1", "irq2", "eol",  "sol",
 416         };
 417         int i;
 418
 419         printk("0x%08x [ %s", risc,
 420                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
 421         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
 422                 if (risc & (1 << (i + 12)))
 423                         printk(" %s",bits[i]);
 424         printk(" count=%d ]\n", risc & 0xfff);
 425         return incr[risc >> 28] ? incr[risc >> 28] : 1;
 426 }
 427
 428
 429 void cx88_sram_channel_dump(struct cx88_core *core,
 430                             struct sram_channel *ch)
 431 {
 432         static char *name[] = {
 433                 "initial risc",
 434                 "cdt base",
 435                 "cdt size",
 436                 "iq base",
 437                 "iq size",
 438                 "risc pc",
 439                 "iq wr ptr",
 440                 "iq rd ptr",
 441                 "cdt current",
 442                 "pci target",
 443                 "line / byte",
 444         };
 445         u32 risc;
 446         unsigned int i,j,n;
 447
 448         printk("%s: %s - dma channel status dump\n",
 449                core->name,ch->name);
 450         for (i = 0; i < ARRAY_SIZE(name); i++)
 451                 printk("%s:   cmds: %-12s: 0x%08x\n",
 452                        core->name,name[i],
 453                        cx_read(ch->cmds_start + 4*i));
 454         for (i = 0; i < 4; i++) {
 455                 risc = cx_read(ch->cmds_start + 4 * (i+11));
 456                 printk("%s:   risc%d: ", core->name, i);
 457                 cx88_risc_decode(risc);
 458         }
 459         for (i = 0; i < 16; i += n) {
 460                 risc = cx_read(ch->ctrl_start + 4 * i);
 461                 printk("%s:   iq %x: ", core->name, i);
 462                 n = cx88_risc_decode(risc);
 463                 for (j = 1; j < n; j++) {
 464                         risc = cx_read(ch->ctrl_start + 4 * (i+j));
 465                         printk("%s:   iq %x: 0x%08x [ arg #%d ]\n",
 466                                core->name, i+j, risc, j);
 467                 }
 468         }
 469
 470         printk("%s: fifo: 0x%08x -> 0x%x\n",
 471                core->name, ch->fifo_start, ch->fifo_start+ch->fifo_size);
 472         printk("%s: ctrl: 0x%08x -> 0x%x\n",
 473                core->name, ch->ctrl_start, ch->ctrl_start+6*16);
 474         printk("%s:   ptr1_reg: 0x%08x\n",
 475                core->name,cx_read(ch->ptr1_reg));
 476         printk("%s:   ptr2_reg: 0x%08x\n",
 477                core->name,cx_read(ch->ptr2_reg));
 478         printk("%s:   cnt1_reg: 0x%08x\n",
 479                core->name,cx_read(ch->cnt1_reg));
 480         printk("%s:   cnt2_reg: 0x%08x\n",
 481                core->name,cx_read(ch->cnt2_reg));
 482 }
 483
 484 static char *cx88_pci_irqs[32] = {
 485         "vid", "aud", "ts", "vip", "hst", "5", "6", "tm1",
 486         "src_dma", "dst_dma", "risc_rd_err", "risc_wr_err",
 487         "brdg_err", "src_dma_err", "dst_dma_err", "ipb_dma_err",
 488         "i2c", "i2c_rack", "ir_smp", "gpio0", "gpio1"
 489 };
 490
 491 void cx88_print_irqbits(char *name, char *tag, char **strings,
 492                         u32 bits, u32 mask)
 493 {
 494         unsigned int i;
 495
 496         printk(KERN_DEBUG "%s: %s [0x%x]", name, tag, bits);
 497         for (i = 0; i < 32; i++) {
 498                 if (!(bits & (1 << i)))
 499                         continue;
 500                 if (strings[i])
 501                         printk(" %s", strings[i]);
 502                 else
 503                         printk(" %d", i);
 504                 if (!(mask & (1 << i)))
 505                         continue;
 506                 printk("*");
 507         }
 508         printk("\n");
 509 }
 510
 511 /* ------------------------------------------------------------------ */
 512
 513 int cx88_core_irq(struct cx88_core *core, u32 status)
 514 {
 515         int handled = 0;
 516
 517         if (status & (1<<18)) {
 518                 cx88_ir_irq(core);
 519                 handled++;
 520         }
 521         if (!handled)
 522                 cx88_print_irqbits(core->name, "irq pci",
 523                                    cx88_pci_irqs, status,
 524                                    core->pci_irqmask);
 525         return handled;
 526 }
 527
 528 void cx88_wakeup(struct cx88_core *core,
 529                  struct cx88_dmaqueue *q, u32 count)
 530 {
 531         struct cx88_buffer *buf;
 532         int bc;
 533
 534         for (bc = 0;; bc++) {
 535                 if (list_empty(&q->active))
 536                         break;
 537                 buf = list_entry(q->active.next,
 538                                  struct cx88_buffer, vb.queue);
 539                 /* count comes from the hw and is is 16bit wide --
 540                  * this trick handles wrap-arounds correctly for
 541                  * up to 32767 buffers in flight... */
 542                 if ((s16) (count - buf->count) < 0)
 543                         break;
 544                 do_gettimeofday(&buf->vb.ts);
 545                 dprintk(2,"[%p/%d] wakeup reg=%d buf=%d\n",buf,buf->vb.i,
 546                         count, buf->count);
 547                 buf->vb.state = STATE_DONE;
 548                 list_del(&buf->vb.queue);
 549                 wake_up(&buf->vb.done);
 550         }
 551         if (list_empty(&q->active)) {
 552                 del_timer(&q->timeout);
 553         } else {
 554                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 555         }
 556         if (bc != 1)
 557                 printk("%s: %d buffers handled (should be 1)\n",__FUNCTION__,bc);
 558 }
 559
 560 void cx88_shutdown(struct cx88_core *core)
 561 {
 562         /* disable RISC controller + IRQs */
 563         cx_write(MO_DEV_CNTRL2, 0);
 564
 565         /* stop dma transfers */
 566         cx_write(MO_VID_DMACNTRL, 0x0);
 567         cx_write(MO_AUD_DMACNTRL, 0x0);
 568         cx_write(MO_TS_DMACNTRL, 0x0);
 569         cx_write(MO_VIP_DMACNTRL, 0x0);
 570         cx_write(MO_GPHST_DMACNTRL, 0x0);
 571
 572         /* stop interrupts */
 573         cx_write(MO_PCI_INTMSK, 0x0);
 574         cx_write(MO_VID_INTMSK, 0x0);
 575         cx_write(MO_AUD_INTMSK, 0x0);
 576         cx_write(MO_TS_INTMSK, 0x0);
 577         cx_write(MO_VIP_INTMSK, 0x0);
 578         cx_write(MO_GPHST_INTMSK, 0x0);
 579
 580         /* stop capturing */
 581         cx_write(VID_CAPTURE_CONTROL, 0);
 582 }
 583
 584 int cx88_reset(struct cx88_core *core)
 585 {
 586         dprintk(1,"%s\n",__FUNCTION__);
 587         cx88_shutdown(core);
 588
 589         /* clear irq status */
 590         cx_write(MO_VID_INTSTAT, 0xFFFFFFFF); // Clear PIV int
 591         cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF); // Clear PCI int
 592         cx_write(MO_INT1_STAT,   0xFFFFFFFF); // Clear RISC int
 593
 594         /* wait a bit */
 595         msleep(100);
 596
 597         /* init sram */
 598         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH21], 720*4, 0);
 599         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH22], 128, 0);
 600         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH23], 128, 0);
 601         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH24], 128, 0);
 602         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], 128, 0);
 603         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], 128, 0);
 604         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28], 188*4, 0);
 605
 606         /* misc init ... */
 607         cx_write(MO_INPUT_FORMAT, ((1 << 13) |   // agc enable
 608                                    (1 << 12) |   // agc gain
 609                                    (1 << 11) |   // adaptibe agc
 610                                    (0 << 10) |   // chroma agc
 611                                    (0 <<  9) |   // ckillen
 612                                    (7)));
 613
 614         /* setup image format */
 615         cx_andor(MO_COLOR_CTRL, 0x4000, 0x4000);
 616
 617         /* setup FIFO Threshholds */
 618         cx_write(MO_PDMA_STHRSH,   0x0807);
 619         cx_write(MO_PDMA_DTHRSH,   0x0807);
 620
 621         /* fixes flashing of image */
 622         cx_write(MO_AGC_SYNC_TIP1, 0x0380000F);
 623         cx_write(MO_AGC_BACK_VBI,  0x00E00555);
 624
 625         cx_write(MO_VID_INTSTAT,   0xFFFFFFFF); // Clear PIV int
 626         cx_write(MO_PCI_INTSTAT,   0xFFFFFFFF); // Clear PCI int
 627         cx_write(MO_INT1_STAT,     0xFFFFFFFF); // Clear RISC int
 628
 629         /* Reset on-board parts */
 630         cx_write(MO_SRST_IO, 0);
 631         msleep(10);
 632         cx_write(MO_SRST_IO, 1);
 633
 634         return 0;
 635 }
 636
 637 /* ------------------------------------------------------------------ */
 638
 639 static unsigned int inline norm_swidth(v4l2_std_id norm)
 640 {
 641         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
 642 }
 643
 644 static unsigned int inline norm_hdelay(v4l2_std_id norm)
 645 {
 646         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 135 : 186;
 647 }
 648
 649 static unsigned int inline norm_vdelay(v4l2_std_id norm)
 650 {
 651         return (norm & V4L2_STD_625_50) ? 0x24 : 0x18;
 652 }
 653
 654 static unsigned int inline norm_fsc8(v4l2_std_id norm)
 655 {
 656         if (norm & V4L2_STD_PAL_M)
 657                 return 28604892;      // 3.575611 MHz
 658
 659         if (norm & (V4L2_STD_PAL_Nc))
 660                 return 28656448;      // 3.582056 MHz
 661
 662         if (norm & V4L2_STD_NTSC) // All NTSC/M and variants
 663                 return 28636360;      // 3.57954545 MHz +/- 10 Hz
 664
 665         /* SECAM have also different sub carrier for chroma,
 666            but step_db and step_dr, at cx88_set_tvnorm already handles that.
 667
 668            The same FSC applies to PAL/BGDKIH, PAL/60, NTSC/4.43 and PAL/N
 669          */
 670
 671         return 35468950;      // 4.43361875 MHz +/- 5 Hz
 672 }
 673
 674 static unsigned int inline norm_htotal(v4l2_std_id norm)
 675 {
 676
 677         unsigned int fsc4=norm_fsc8(norm)/2;
 678
 679         /* returns 4*FSC / vtotal / frames per seconds */
 680         return (norm & V4L2_STD_625_50) ?
 681                                 ((fsc4+312)/625+12)/25 :
 682                                 ((fsc4+262)/525*1001+15000)/30000;
 683 }
 684
 685 static unsigned int inline norm_vbipack(v4l2_std_id norm)
 686 {
 687         return (norm & V4L2_STD_625_50) ? 511 : 400;
 688 }
 689
 690 int cx88_set_scale(struct cx88_core *core, unsigned int width, unsigned int height,
 691                    enum v4l2_field field)
 692 {
 693         unsigned int swidth  = norm_swidth(core->tvnorm);
 694         unsigned int sheight = norm_maxh(core->tvnorm);
 695         u32 value;
 696
 697         dprintk(1,"set_scale: %dx%d [%s%s,%s]\n", width, height,
 698                 V4L2_FIELD_HAS_TOP(field)    ? "T" : "",
 699                 V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
 700                 v4l2_norm_to_name(core->tvnorm));
 701         if (!V4L2_FIELD_HAS_BOTH(field))
 702                 height *= 2;
 703
 704         // recalc H delay and scale registers
 705         value = (width * norm_hdelay(core->tvnorm)) / swidth;
 706         value &= 0x3fe;
 707         cx_write(MO_HDELAY_EVEN,  value);
 708         cx_write(MO_HDELAY_ODD,   value);
 709         dprintk(1,"set_scale: hdelay  0x%04x (width %d)\n", value,swidth);
 710
 711         value = (swidth * 4096 / width) - 4096;
 712         cx_write(MO_HSCALE_EVEN,  value);
 713         cx_write(MO_HSCALE_ODD,   value);
 714         dprintk(1,"set_scale: hscale  0x%04x\n", value);
 715
 716         cx_write(MO_HACTIVE_EVEN, width);
 717         cx_write(MO_HACTIVE_ODD,  width);
 718         dprintk(1,"set_scale: hactive 0x%04x\n", width);
 719
 720         // recalc V scale Register (delay is constant)
 721         cx_write(MO_VDELAY_EVEN, norm_vdelay(core->tvnorm));
 722         cx_write(MO_VDELAY_ODD,  norm_vdelay(core->tvnorm));
 723         dprintk(1,"set_scale: vdelay  0x%04x\n", norm_vdelay(core->tvnorm));
 724
 725         value = (0x10000 - (sheight * 512 / height - 512)) & 0x1fff;
 726         cx_write(MO_VSCALE_EVEN,  value);
 727         cx_write(MO_VSCALE_ODD,   value);
 728         dprintk(1,"set_scale: vscale  0x%04x\n", value);
 729
 730         cx_write(MO_VACTIVE_EVEN, sheight);
 731         cx_write(MO_VACTIVE_ODD,  sheight);
 732         dprintk(1,"set_scale: vactive 0x%04x\n", sheight);
 733
 734         // setup filters
 735         value = 0;
 736         value |= (1 << 19);        // CFILT (default)
 737         if (core->tvnorm & V4L2_STD_SECAM) {
 738                 value |= (1 << 15);
 739                 value |= (1 << 16);
 740         }
 741         if (INPUT(core->input)->type == CX88_VMUX_SVIDEO)
 742                 value |= (1 << 13) | (1 << 5);
 743         if (V4L2_FIELD_INTERLACED == field)
 744                 value |= (1 << 3); // VINT (interlaced vertical scaling)
 745         if (width < 385)
 746                 value |= (1 << 0); // 3-tap interpolation
 747         if (width < 193)
 748                 value |= (1 << 1); // 5-tap interpolation
 749         if (nocomb)
 750                 value |= (3 << 5); // disable comb filter
 751
 752         cx_write(MO_FILTER_EVEN,  value);
 753         cx_write(MO_FILTER_ODD,   value);
 754         dprintk(1,"set_scale: filter  0x%04x\n", value);
 755
 756         return 0;
 757 }
 758
 759 static const u32 xtal = 28636363;
 760
 761 static int set_pll(struct cx88_core *core, int prescale, u32 ofreq)
 762 {
 763         static u32 pre[] = { 0, 0, 0, 3, 2, 1 };
 764         u64 pll;
 765         u32 reg;
 766         int i;
 767
 768         if (prescale < 2)
 769                 prescale = 2;
 770         if (prescale > 5)
 771                 prescale = 5;
 772
 773         pll = ofreq * 8 * prescale * (u64)(1 << 20);
 774         do_div(pll,xtal);
 775         reg = (pll & 0x3ffffff) | (pre[prescale] << 26);
 776         if (((reg >> 20) & 0x3f) < 14) {
 777                 printk("%s/0: pll out of range\n",core->name);
 778                 return -1;
 779         }
 780
 781         dprintk(1,"set_pll:    MO_PLL_REG       0x%08x [old=0x%08x,freq=%d]\n",
 782                 reg, cx_read(MO_PLL_REG), ofreq);
 783         cx_write(MO_PLL_REG, reg);
 784         for (i = 0; i < 100; i++) {
 785                 reg = cx_read(MO_DEVICE_STATUS);
 786                 if (reg & (1<<2)) {
 787                         dprintk(1,"pll locked [pre=%d,ofreq=%d]\n",
 788                                 prescale,ofreq);
 789                         return 0;
 790                 }
 791                 dprintk(1,"pll not locked yet, waiting ...\n");
 792                 msleep(10);
 793         }
 794         dprintk(1,"pll NOT locked [pre=%d,ofreq=%d]\n",prescale,ofreq);
 795         return -1;
 796 }
 797
 798 int cx88_start_audio_dma(struct cx88_core *core)
 799 {
 800         /* constant 128 made buzz in analog Nicam-stereo for bigger fifo_size */
 801         int bpl = cx88_sram_channels[SRAM_CH25].fifo_size/4;
 802
 803         /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
 804         if (cx_read(MO_AUD_DMACNTRL) & 0x10)
 805                 return 0;
 806
 807         /* setup fifo + format */
 808         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], bpl, 0);
 809         cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], bpl, 0);
 810
 811         cx_write(MO_AUDD_LNGTH, bpl); /* fifo bpl size */
 812         cx_write(MO_AUDR_LNGTH, bpl); /* fifo bpl size */
 813
 814         /* start dma */
 815         cx_write(MO_AUD_DMACNTRL, 0x0003); /* Up and Down fifo enable */
 816
 817         return 0;
 818 }
 819
 820 int cx88_stop_audio_dma(struct cx88_core *core)
 821 {
 822         /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
 823         if (cx_read(MO_AUD_DMACNTRL) & 0x10)
 824                 return 0;
 825
 826         /* stop dma */
 827         cx_write(MO_AUD_DMACNTRL, 0x0000);
 828
 829         return 0;
 830 }
 831
 832 static int set_tvaudio(struct cx88_core *core)
 833 {
 834         v4l2_std_id norm = core->tvnorm;
 835
 836         if (CX88_VMUX_TELEVISION != INPUT(core->input)->type)
 837                 return 0;
 838
 839         if (V4L2_STD_PAL_BG & norm) {
 840                 core->tvaudio = WW_BG;
 841
 842         } else if (V4L2_STD_PAL_DK & norm) {
 843                 core->tvaudio = WW_DK;
 844
 845         } else if (V4L2_STD_PAL_I & norm) {
 846                 core->tvaudio = WW_I;
 847
 848         } else if (V4L2_STD_SECAM_L & norm) {
 849                 core->tvaudio = WW_L;
 850
 851         } else if (V4L2_STD_SECAM_DK & norm) {
 852                 core->tvaudio = WW_DK;
 853
 854         } else if ((V4L2_STD_NTSC_M & norm) ||
 855                    (V4L2_STD_PAL_M  & norm)) {
 856                 core->tvaudio = WW_BTSC;
 857
 858         } else if (V4L2_STD_NTSC_M_JP & norm) {
 859                 core->tvaudio = WW_EIAJ;
 860
 861         } else {
 862                 printk("%s/0: tvaudio support needs work for this tv norm [%s], sorry\n",
 863                        core->name, v4l2_norm_to_name(core->tvnorm));
 864                 core->tvaudio = 0;
 865                 return 0;
 866         }
 867
 868         cx_andor(MO_AFECFG_IO, 0x1f, 0x0);
 869         cx88_set_tvaudio(core);
 870         /* cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO); */
 871
 872 /*
 873    This should be needed only on cx88-alsa. It seems that some cx88 chips have
 874    bugs and does require DMA enabled for it to work.
 875  */
 876         cx88_start_audio_dma(core);
 877         return 0;
 878 }
 879
 880
 881
 882 int cx88_set_tvnorm(struct cx88_core *core, v4l2_std_id norm)
 883 {
 884         u32 fsc8;
 885         u32 adc_clock;
 886         u32 vdec_clock;
 887         u32 step_db,step_dr;
 888         u64 tmp64;
 889         u32 bdelay,agcdelay,htotal;
 890         u32 cxiformat, cxoformat;
 891
 892         core->tvnorm = norm;
 893         fsc8       = norm_fsc8(norm);
 894         adc_clock  = xtal;
 895         vdec_clock = fsc8;
 896         step_db    = fsc8;
 897         step_dr    = fsc8;
 898
 899         if (norm & V4L2_STD_NTSC_M_JP) {
 900                 cxiformat = VideoFormatNTSCJapan;
 901                 cxoformat = 0x181f0008;
 902         } else if (norm & V4L2_STD_NTSC_443) {
 903                 cxiformat = VideoFormatNTSC443;
 904                 cxoformat = 0x181f0008;
 905         } else if (norm & V4L2_STD_PAL_M) {
 906                 cxiformat = VideoFormatPALM;
 907                 cxoformat = 0x1c1f0008;
 908         } else if (norm & V4L2_STD_PAL_N) {
 909                 cxiformat = VideoFormatPALN;
 910                 cxoformat = 0x1c1f0008;
 911         } else if (norm & V4L2_STD_PAL_Nc) {
 912                 cxiformat = VideoFormatPALNC;
 913                 cxoformat = 0x1c1f0008;
 914         } else if (norm & V4L2_STD_PAL_60) {
 915                 cxiformat = VideoFormatPAL60;
 916                 cxoformat = 0x181f0008;
 917         } else if (norm & V4L2_STD_NTSC) {
 918                 cxiformat = VideoFormatNTSC;
 919                 cxoformat = 0x181f0008;
 920         } else if (norm & V4L2_STD_SECAM) {
 921                 step_db = 4250000 * 8;
 922                 step_dr = 4406250 * 8;
 923
 924                 cxiformat = VideoFormatSECAM;
 925                 cxoformat = 0x181f0008;
 926         } else { /* PAL */
 927                 cxiformat = VideoFormatPAL;
 928                 cxoformat = 0x181f0008;
 929         }
 930
 931         dprintk(1,"set_tvnorm: \"%s\" fsc8=%d adc=%d vdec=%d db/dr=%d/%d\n",
 932                 v4l2_norm_to_name(core->tvnorm), fsc8, adc_clock, vdec_clock,
 933                 step_db, step_dr);
 934         set_pll(core,2,vdec_clock);
 935
 936         dprintk(1,"set_tvnorm: MO_INPUT_FORMAT  0x%08x [old=0x%08x]\n",
 937                 cxiformat, cx_read(MO_INPUT_FORMAT) & 0x0f);
 938         cx_andor(MO_INPUT_FORMAT, 0xf, cxiformat);
 939
 940         // FIXME: as-is from DScaler
 941         dprintk(1,"set_tvnorm: MO_OUTPUT_FORMAT 0x%08x [old=0x%08x]\n",
 942                 cxoformat, cx_read(MO_OUTPUT_FORMAT));
 943         cx_write(MO_OUTPUT_FORMAT, cxoformat);
 944
 945         // MO_SCONV_REG = adc clock / video dec clock * 2^17
 946         tmp64  = adc_clock * (u64)(1 << 17);
 947         do_div(tmp64, vdec_clock);
 948         dprintk(1,"set_tvnorm: MO_SCONV_REG     0x%08x [old=0x%08x]\n",
 949                 (u32)tmp64, cx_read(MO_SCONV_REG));
 950         cx_write(MO_SCONV_REG, (u32)tmp64);
 951
 952         // MO_SUB_STEP = 8 * fsc / video dec clock * 2^22
 953         tmp64  = step_db * (u64)(1 << 22);
 954         do_div(tmp64, vdec_clock);
 955         dprintk(1,"set_tvnorm: MO_SUB_STEP      0x%08x [old=0x%08x]\n",
 956                 (u32)tmp64, cx_read(MO_SUB_STEP));
 957         cx_write(MO_SUB_STEP, (u32)tmp64);
 958
 959         // MO_SUB_STEP_DR = 8 * 4406250 / video dec clock * 2^22
 960         tmp64  = step_dr * (u64)(1 << 22);
 961         do_div(tmp64, vdec_clock);
 962         dprintk(1,"set_tvnorm: MO_SUB_STEP_DR   0x%08x [old=0x%08x]\n",
 963                 (u32)tmp64, cx_read(MO_SUB_STEP_DR));
 964         cx_write(MO_SUB_STEP_DR, (u32)tmp64);
 965
 966         // bdelay + agcdelay
 967         bdelay   = vdec_clock * 65 / 20000000 + 21;
 968         agcdelay = vdec_clock * 68 / 20000000 + 15;
 969         dprintk(1,"set_tvnorm: MO_AGC_BURST     0x%08x [old=0x%08x,bdelay=%d,agcdelay=%d]\n",
 970                 (bdelay << 8) | agcdelay, cx_read(MO_AGC_BURST), bdelay, agcdelay);
 971         cx_write(MO_AGC_BURST, (bdelay << 8) | agcdelay);
 972
 973         // htotal
 974         tmp64 = norm_htotal(norm) * (u64)vdec_clock;
 975         do_div(tmp64, fsc8);
 976         htotal = (u32)tmp64 | (HLNotchFilter4xFsc << 11);
 977         dprintk(1,"set_tvnorm: MO_HTOTAL        0x%08x [old=0x%08x,htotal=%d]\n",
 978                 htotal, cx_read(MO_HTOTAL), (u32)tmp64);
 979         cx_write(MO_HTOTAL, htotal);
 980
 981         // vbi stuff, set vbi offset to 10 (for 20 Clk*2 pixels), this makes
 982         // the effective vbi offset ~244 samples, the same as the Bt8x8
 983         cx_write(MO_VBI_PACKET, (10<<11) | norm_vbipack(norm));
 984
 985         // this is needed as well to set all tvnorm parameter
 986         cx88_set_scale(core, 320, 240, V4L2_FIELD_INTERLACED);
 987
 988         // audio
 989         set_tvaudio(core);
 990
 991         // tell i2c chips
 992         cx88_call_i2c_clients(core,VIDIOC_S_STD,&norm);
 993
 994         // done
 995         return 0;
 996 }
 997
 998 /* ------------------------------------------------------------------ */
 999
1000 static int cx88_pci_quirks(char *name, struct pci_dev *pci)
1001 {
1002         unsigned int lat = UNSET;
1003         u8 ctrl = 0;
1004         u8 value;
1005
1006         /* check pci quirks */
1007         if (pci_pci_problems & PCIPCI_TRITON) {
1008                 printk(KERN_INFO "%s: quirk: PCIPCI_TRITON -- set TBFX\n",
1009                        name);
1010                 ctrl |= CX88X_EN_TBFX;
1011         }
1012         if (pci_pci_problems & PCIPCI_NATOMA) {
1013                 printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA -- set TBFX\n",
1014                        name);
1015                 ctrl |= CX88X_EN_TBFX;
1016         }
1017         if (pci_pci_problems & PCIPCI_VIAETBF) {
1018                 printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF -- set TBFX\n",
1019                        name);
1020                 ctrl |= CX88X_EN_TBFX;
1021         }
1022         if (pci_pci_problems & PCIPCI_VSFX) {
1023                 printk(KERN_INFO "%s: quirk: PCIPCI_VSFX -- set VSFX\n",
1024                        name);
1025                 ctrl |= CX88X_EN_VSFX;
1026         }
1027 #ifdef PCIPCI_ALIMAGIK
1028         if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1029                 printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1030                        name);
1031                 lat = 0x0A;
1032         }
1033 #endif
1034
1035         /* check insmod options */
1036         if (UNSET != latency)
1037                 lat = latency;
1038
1039         /* apply stuff */
1040         if (ctrl) {
1041                 pci_read_config_byte(pci, CX88X_DEVCTRL, &value);
1042                 value |= ctrl;
1043                 pci_write_config_byte(pci, CX88X_DEVCTRL, value);
1044         }
1045         if (UNSET != lat) {
1046                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
1047                        name, latency);
1048                 pci_write_config_byte(pci, PCI_LATENCY_TIMER, latency);
1049         }
1050         return 0;
1051 }
1052
1053 /* ------------------------------------------------------------------ */
1054
1055 struct video_device *cx88_vdev_init(struct cx88_core *core,
1056                                     struct pci_dev *pci,
1057                                     struct video_device *template,
1058                                     char *type)
1059 {
1060         struct video_device *vfd;
1061
1062         vfd = video_device_alloc();
1063         if (NULL == vfd)
1064                 return NULL;
1065         *vfd = *template;
1066         vfd->minor   = -1;
1067         vfd->dev     = &pci->dev;
1068         vfd->release = video_device_release;
1069         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
1070                  core->name, type, cx88_boards[core->board].name);
1071         return vfd;
1072 }
1073
1074 static int get_ressources(struct cx88_core *core, struct pci_dev *pci)
1075 {
1076         if (request_mem_region(pci_resource_start(pci,0),
1077                                pci_resource_len(pci,0),
1078                                core->name))
1079                 return 0;
1080         printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
1081                core->name,(unsigned long long)pci_resource_start(pci,0));
1082         return -EBUSY;
1083 }
1084
1085 struct cx88_core* cx88_core_get(struct pci_dev *pci)
1086 {
1087         struct cx88_core *core;
1088         struct list_head *item;
1089         int i;
1090
1091         mutex_lock(&devlist);
1092         list_for_each(item,&cx88_devlist) {
1093                 core = list_entry(item, struct cx88_core, devlist);
1094                 if (pci->bus->number != core->pci_bus)
1095                         continue;
1096                 if (PCI_SLOT(pci->devfn) != core->pci_slot)
1097                         continue;
1098
1099                 if (0 != get_ressources(core,pci))
1100                         goto fail_unlock;
1101                 atomic_inc(&core->refcount);
1102                 mutex_unlock(&devlist);
1103                 return core;
1104         }
1105         core = kzalloc(sizeof(*core),GFP_KERNEL);
1106         if (NULL == core)
1107                 goto fail_unlock;
1108
1109         atomic_inc(&core->refcount);
1110         core->pci_bus  = pci->bus->number;
1111         core->pci_slot = PCI_SLOT(pci->devfn);
1112         core->pci_irqmask = 0x00fc00;
1113         mutex_init(&core->lock);
1114
1115         core->nr = cx88_devcount++;
1116         sprintf(core->name,"cx88[%d]",core->nr);
1117         if (0 != get_ressources(core,pci)) {
1118                 printk(KERN_ERR "CORE %s No more PCI ressources for "
1119                         "subsystem: %04x:%04x, board: %s\n",
1120                         core->name,pci->subsystem_vendor,
1121                         pci->subsystem_device,
1122                         cx88_boards[core->board].name);
1123
1124                 cx88_devcount--;
1125                 goto fail_free;
1126         }
1127         list_add_tail(&core->devlist,&cx88_devlist);
1128
1129         /* PCI stuff */
1130         cx88_pci_quirks(core->name, pci);
1131         core->lmmio = ioremap(pci_resource_start(pci,0),
1132                               pci_resource_len(pci,0));
1133         core->bmmio = (u8 __iomem *)core->lmmio;
1134
1135         /* board config */
1136         core->board = UNSET;
1137         if (card[core->nr] < cx88_bcount)
1138                 core->board = card[core->nr];
1139         for (i = 0; UNSET == core->board  &&  i < cx88_idcount; i++)
1140                 if (pci->subsystem_vendor == cx88_subids[i].subvendor &&
1141                     pci->subsystem_device == cx88_subids[i].subdevice)
1142                         core->board = cx88_subids[i].card;
1143         if (UNSET == core->board) {
1144                 core->board = CX88_BOARD_UNKNOWN;
1145                 cx88_card_list(core,pci);
1146         }
1147         printk(KERN_INFO "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1148                 core->name,pci->subsystem_vendor,
1149                 pci->subsystem_device,cx88_boards[core->board].name,
1150                 core->board, card[core->nr] == core->board ?
1151                 "insmod option" : "autodetected");
1152
1153         core->tuner_type = tuner[core->nr];
1154         core->radio_type = radio[core->nr];
1155         if (UNSET == core->tuner_type)
1156                 core->tuner_type = cx88_boards[core->board].tuner_type;
1157         if (UNSET == core->radio_type)
1158                 core->radio_type = cx88_boards[core->board].radio_type;
1159         if (!core->tuner_addr)
1160                 core->tuner_addr = cx88_boards[core->board].tuner_addr;
1161         if (!core->radio_addr)
1162                 core->radio_addr = cx88_boards[core->board].radio_addr;
1163
1164         printk(KERN_INFO "TV tuner %d at 0x%02x, Radio tuner %d at 0x%02x\n",
1165                 core->tuner_type, core->tuner_addr<<1,
1166                 core->radio_type, core->radio_addr<<1);
1167
1168         core->tda9887_conf = cx88_boards[core->board].tda9887_conf;
1169
1170         /* init hardware */
1171         cx88_reset(core);
1172         cx88_card_setup_pre_i2c(core);
1173         cx88_i2c_init(core,pci);
1174         cx88_call_i2c_clients (core, TUNER_SET_STANDBY, NULL);
1175         cx88_card_setup(core);
1176         cx88_ir_init(core,pci);
1177
1178         mutex_unlock(&devlist);
1179         return core;
1180
1181 fail_free:
1182         kfree(core);
1183 fail_unlock:
1184         mutex_unlock(&devlist);
1185         return NULL;
1186 }
1187
1188 void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
1189 {
1190         release_mem_region(pci_resource_start(pci,0),
1191                            pci_resource_len(pci,0));
1192
1193         if (!atomic_dec_and_test(&core->refcount))
1194                 return;
1195
1196         mutex_lock(&devlist);
1197         cx88_ir_fini(core);
1198         if (0 == core->i2c_rc)
1199                 i2c_del_adapter(&core->i2c_adap);
1200         list_del(&core->devlist);
1201         iounmap(core->lmmio);
1202         cx88_devcount--;
1203         mutex_unlock(&devlist);
1204         kfree(core);
1205 }
1206
1207 /* ------------------------------------------------------------------ */
1208
1209 EXPORT_SYMBOL(cx88_print_irqbits);
1210
1211 EXPORT_SYMBOL(cx88_core_irq);
1212 EXPORT_SYMBOL(cx88_wakeup);
1213 EXPORT_SYMBOL(cx88_reset);
1214 EXPORT_SYMBOL(cx88_shutdown);
1215
1216 EXPORT_SYMBOL(cx88_risc_buffer);
1217 EXPORT_SYMBOL(cx88_risc_databuffer);
1218 EXPORT_SYMBOL(cx88_risc_stopper);
1219 EXPORT_SYMBOL(cx88_free_buffer);
1220
1221 EXPORT_SYMBOL(cx88_sram_channels);
1222 EXPORT_SYMBOL(cx88_sram_channel_setup);
1223 EXPORT_SYMBOL(cx88_sram_channel_dump);
1224
1225 EXPORT_SYMBOL(cx88_set_tvnorm);
1226 EXPORT_SYMBOL(cx88_set_scale);
1227
1228 EXPORT_SYMBOL(cx88_vdev_init);
1229 EXPORT_SYMBOL(cx88_core_get);
1230 EXPORT_SYMBOL(cx88_core_put);
1231
1232 /*
1233  * Local variables:
1234  * c-basic-offset: 8
1235  * End:
1236  * 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
1237  */