1/* 2 * Driver for the Conexant CX23885 PCIe bridge 3 * 4 * Copyright (c) 2006 Steven Toth <stoth@linuxtv.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22#include <linux/pci.h> 23#include <linux/i2c.h> 24#include <linux/i2c-algo-bit.h> 25#include <linux/kdev_t.h> 26#include <linux/slab.h> 27 28#include <media/v4l2-device.h> 29#include <media/tuner.h> 30#include <media/tveeprom.h> 31#include <media/videobuf-dma-sg.h> 32#include <media/videobuf-dvb.h> 33#include <media/rc-core.h> 34 35#include "btcx-risc.h" 36#include "cx23885-reg.h" 37#include "media/cx2341x.h" 38 39#include <linux/mutex.h> 40 41#define CX23885_VERSION "0.0.3" 42 43#define UNSET (-1U) 44 45#define CX23885_MAXBOARDS 8 46 47/* Max number of inputs by card */ 48#define MAX_CX23885_INPUT 8 49#define INPUT(nr) (&cx23885_boards[dev->board].input[nr]) 50#define RESOURCE_OVERLAY 1 51#define RESOURCE_VIDEO 2 52#define RESOURCE_VBI 4 53 54#define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 55 56#define CX23885_BOARD_NOAUTO UNSET 57#define CX23885_BOARD_UNKNOWN 0 58#define CX23885_BOARD_HAUPPAUGE_HVR1800lp 1 59#define CX23885_BOARD_HAUPPAUGE_HVR1800 2 60#define CX23885_BOARD_HAUPPAUGE_HVR1250 3 61#define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP 4 62#define CX23885_BOARD_HAUPPAUGE_HVR1500Q 5 63#define CX23885_BOARD_HAUPPAUGE_HVR1500 6 64#define CX23885_BOARD_HAUPPAUGE_HVR1200 7 65#define CX23885_BOARD_HAUPPAUGE_HVR1700 8 66#define CX23885_BOARD_HAUPPAUGE_HVR1400 9 67#define CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP 10 68#define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP 11 69#define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H 12 70#define CX23885_BOARD_COMPRO_VIDEOMATE_E650F 13 71#define CX23885_BOARD_TBS_6920 14 72#define CX23885_BOARD_TEVII_S470 15 73#define CX23885_BOARD_DVBWORLD_2005 16 74#define CX23885_BOARD_NETUP_DUAL_DVBS2_CI 17 75#define CX23885_BOARD_HAUPPAUGE_HVR1270 18 76#define CX23885_BOARD_HAUPPAUGE_HVR1275 19 77#define CX23885_BOARD_HAUPPAUGE_HVR1255 20 78#define CX23885_BOARD_HAUPPAUGE_HVR1210 21 79#define CX23885_BOARD_MYGICA_X8506 22 80#define CX23885_BOARD_MAGICPRO_PROHDTVE2 23 81#define CX23885_BOARD_HAUPPAUGE_HVR1850 24 82#define CX23885_BOARD_COMPRO_VIDEOMATE_E800 25 83#define CX23885_BOARD_HAUPPAUGE_HVR1290 26 84#define CX23885_BOARD_MYGICA_X8558PRO 27 85#define CX23885_BOARD_LEADTEK_WINFAST_PXTV1200 28 86#define CX23885_BOARD_GOTVIEW_X5_3D_HYBRID 29 87#define CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF 30 88#define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000 31 89#define CX23885_BOARD_MPX885 32 90#define CX23885_BOARD_MYGICA_X8507 33 91#define CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL 34 92 93#define GPIO_0 0x00000001 94#define GPIO_1 0x00000002 95#define GPIO_2 0x00000004 96#define GPIO_3 0x00000008 97#define GPIO_4 0x00000010 98#define GPIO_5 0x00000020 99#define GPIO_6 0x00000040 100#define GPIO_7 0x00000080 101#define GPIO_8 0x00000100 102#define GPIO_9 0x00000200 103#define GPIO_10 0x00000400 104#define GPIO_11 0x00000800 105#define GPIO_12 0x00001000 106#define GPIO_13 0x00002000 107#define GPIO_14 0x00004000 108#define GPIO_15 0x00008000 109 110/* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */ 111#define CX23885_NORMS (\ 112 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443 | \ 113 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 114 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | \ 115 V4L2_STD_PAL_60 | V4L2_STD_SECAM_L | V4L2_STD_SECAM_DK) 116 117struct cx23885_fmt { 118 char *name; 119 u32 fourcc; /* v4l2 format id */ 120 int depth; 121 int flags; 122 u32 cxformat; 123}; 124 125struct cx23885_ctrl { 126 struct v4l2_queryctrl v; 127 u32 off; 128 u32 reg; 129 u32 mask; 130 u32 shift; 131}; 132 133struct cx23885_tvnorm { 134 char *name; 135 v4l2_std_id id; 136 u32 cxiformat; 137 u32 cxoformat; 138}; 139 140struct cx23885_fh { 141 struct cx23885_dev *dev; 142 enum v4l2_buf_type type; 143 int radio; 144 u32 resources; 145 146 /* video overlay */ 147 struct v4l2_window win; 148 struct v4l2_clip *clips; 149 unsigned int nclips; 150 151 /* video capture */ 152 struct cx23885_fmt *fmt; 153 unsigned int width, height; 154 155 /* vbi capture */ 156 struct videobuf_queue vidq; 157 struct videobuf_queue vbiq; 158 159 /* MPEG Encoder specifics ONLY */ 160 struct videobuf_queue mpegq; 161 atomic_t v4l_reading; 162}; 163 164enum cx23885_itype { 165 CX23885_VMUX_COMPOSITE1 = 1, 166 CX23885_VMUX_COMPOSITE2, 167 CX23885_VMUX_COMPOSITE3, 168 CX23885_VMUX_COMPOSITE4, 169 CX23885_VMUX_SVIDEO, 170 CX23885_VMUX_COMPONENT, 171 CX23885_VMUX_TELEVISION, 172 CX23885_VMUX_CABLE, 173 CX23885_VMUX_DVB, 174 CX23885_VMUX_DEBUG, 175 CX23885_RADIO, 176}; 177 178enum cx23885_src_sel_type { 179 CX23885_SRC_SEL_EXT_656_VIDEO = 0, 180 CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO 181}; 182 183/* buffer for one video frame */ 184struct cx23885_buffer { 185 /* common v4l buffer stuff -- must be first */ 186 struct videobuf_buffer vb; 187 188 /* cx23885 specific */ 189 unsigned int bpl; 190 struct btcx_riscmem risc; 191 struct cx23885_fmt *fmt; 192 u32 count; 193}; 194 195struct cx23885_input { 196 enum cx23885_itype type; 197 unsigned int vmux; 198 unsigned int amux; 199 u32 gpio0, gpio1, gpio2, gpio3; 200}; 201 202typedef enum { 203 CX23885_MPEG_UNDEFINED = 0, 204 CX23885_MPEG_DVB, 205 CX23885_ANALOG_VIDEO, 206 CX23885_MPEG_ENCODER, 207} port_t; 208 209struct cx23885_board { 210 char *name; 211 port_t porta, portb, portc; 212 int num_fds_portb, num_fds_portc; 213 unsigned int tuner_type; 214 unsigned int radio_type; 215 unsigned char tuner_addr; 216 unsigned char radio_addr; 217 unsigned int tuner_bus; 218 219 /* Vendors can and do run the PCIe bridge at different 220 * clock rates, driven physically by crystals on the PCBs. 221 * The core has to accommodate this. This allows the user 222 * to add new boards with new frequencys. The value is 223 * expressed in Hz. 224 * 225 * The core framework will default this value based on 226 * current designs, but it can vary. 227 */ 228 u32 clk_freq; 229 struct cx23885_input input[MAX_CX23885_INPUT]; 230 int ci_type; /* for NetUP */ 231 /* Force bottom field first during DMA (888 workaround) */ 232 u32 force_bff; 233}; 234 235struct cx23885_subid { 236 u16 subvendor; 237 u16 subdevice; 238 u32 card; 239}; 240 241struct cx23885_i2c { 242 struct cx23885_dev *dev; 243 244 int nr; 245 246 /* i2c i/o */ 247 struct i2c_adapter i2c_adap; 248 struct i2c_algo_bit_data i2c_algo; 249 struct i2c_client i2c_client; 250 u32 i2c_rc; 251 252 /* 885 registers used for raw addess */ 253 u32 i2c_period; 254 u32 reg_ctrl; 255 u32 reg_stat; 256 u32 reg_addr; 257 u32 reg_rdata; 258 u32 reg_wdata; 259}; 260 261struct cx23885_dmaqueue { 262 struct list_head active; 263 struct list_head queued; 264 struct timer_list timeout; 265 struct btcx_riscmem stopper; 266 u32 count; 267}; 268 269struct cx23885_tsport { 270 struct cx23885_dev *dev; 271 272 int nr; 273 int sram_chno; 274 275 struct videobuf_dvb_frontends frontends; 276 277 /* dma queues */ 278 struct cx23885_dmaqueue mpegq; 279 u32 ts_packet_size; 280 u32 ts_packet_count; 281 282 int width; 283 int height; 284 285 spinlock_t slock; 286 287 /* registers */ 288 u32 reg_gpcnt; 289 u32 reg_gpcnt_ctl; 290 u32 reg_dma_ctl; 291 u32 reg_lngth; 292 u32 reg_hw_sop_ctrl; 293 u32 reg_gen_ctrl; 294 u32 reg_bd_pkt_status; 295 u32 reg_sop_status; 296 u32 reg_fifo_ovfl_stat; 297 u32 reg_vld_misc; 298 u32 reg_ts_clk_en; 299 u32 reg_ts_int_msk; 300 u32 reg_ts_int_stat; 301 u32 reg_src_sel; 302 303 /* Default register vals */ 304 int pci_irqmask; 305 u32 dma_ctl_val; 306 u32 ts_int_msk_val; 307 u32 gen_ctrl_val; 308 u32 ts_clk_en_val; 309 u32 src_sel_val; 310 u32 vld_misc_val; 311 u32 hw_sop_ctrl_val; 312 313 /* Allow a single tsport to have multiple frontends */ 314 u32 num_frontends; 315 void (*gate_ctrl)(struct cx23885_tsport *port, int open); 316 void *port_priv; 317 318 /* Workaround for a temp dvb_frontend that the tuner can attached to */ 319 struct dvb_frontend analog_fe; 320}; 321 322struct cx23885_kernel_ir { 323 struct cx23885_dev *cx; 324 char *name; 325 char *phys; 326 327 struct rc_dev *rc; 328}; 329 330struct cx23885_audio_buffer { 331 unsigned int bpl; 332 struct btcx_riscmem risc; 333 struct videobuf_dmabuf dma; 334}; 335 336struct cx23885_audio_dev { 337 struct cx23885_dev *dev; 338 339 struct pci_dev *pci; 340 341 struct snd_card *card; 342 343 spinlock_t lock; 344 345 atomic_t count; 346 347 unsigned int dma_size; 348 unsigned int period_size; 349 unsigned int num_periods; 350 351 struct videobuf_dmabuf *dma_risc; 352 353 struct cx23885_audio_buffer *buf; 354 355 struct snd_pcm_substream *substream; 356}; 357 358struct cx23885_dev { 359 atomic_t refcount; 360 struct v4l2_device v4l2_dev; 361 362 /* pci stuff */ 363 struct pci_dev *pci; 364 unsigned char pci_rev, pci_lat; 365 int pci_bus, pci_slot; 366 u32 __iomem *lmmio; 367 u8 __iomem *bmmio; 368 int pci_irqmask; 369 spinlock_t pci_irqmask_lock; /* protects mask reg too */ 370 int hwrevision; 371 372 /* This valud is board specific and is used to configure the 373 * AV core so we see nice clean and stable video and audio. */ 374 u32 clk_freq; 375 376 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 377 struct cx23885_i2c i2c_bus[3]; 378 379 int nr; 380 struct mutex lock; 381 struct mutex gpio_lock; 382 383 /* board details */ 384 unsigned int board; 385 char name[32]; 386 387 struct cx23885_tsport ts1, ts2; 388 389 /* sram configuration */ 390 struct sram_channel *sram_channels; 391 392 enum { 393 CX23885_BRIDGE_UNDEFINED = 0, 394 CX23885_BRIDGE_885 = 885, 395 CX23885_BRIDGE_887 = 887, 396 CX23885_BRIDGE_888 = 888, 397 } bridge; 398 399 /* Analog video */ 400 u32 resources; 401 unsigned int input; 402 unsigned int audinput; /* Selectable audio input */ 403 u32 tvaudio; 404 v4l2_std_id tvnorm; 405 unsigned int tuner_type; 406 unsigned char tuner_addr; 407 unsigned int tuner_bus; 408 unsigned int radio_type; 409 unsigned char radio_addr; 410 unsigned int has_radio; 411 struct v4l2_subdev *sd_cx25840; 412 struct work_struct cx25840_work; 413 414 /* Infrared */ 415 struct v4l2_subdev *sd_ir; 416 struct work_struct ir_rx_work; 417 unsigned long ir_rx_notifications; 418 struct work_struct ir_tx_work; 419 unsigned long ir_tx_notifications; 420 421 struct cx23885_kernel_ir *kernel_ir; 422 atomic_t ir_input_stopping; 423 424 /* V4l */ 425 u32 freq; 426 struct video_device *video_dev; 427 struct video_device *vbi_dev; 428 struct video_device *radio_dev; 429 430 struct cx23885_dmaqueue vidq; 431 struct cx23885_dmaqueue vbiq; 432 spinlock_t slock; 433 434 /* MPEG Encoder ONLY settings */ 435 u32 cx23417_mailbox; 436 struct cx2341x_mpeg_params mpeg_params; 437 struct video_device *v4l_device; 438 atomic_t v4l_reader_count; 439 struct cx23885_tvnorm encodernorm; 440 441 /* Analog raw audio */ 442 struct cx23885_audio_dev *audio_dev; 443 444}; 445 446static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev) 447{ 448 return container_of(v4l2_dev, struct cx23885_dev, v4l2_dev); 449} 450 451#define call_all(dev, o, f, args...) \ 452 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args) 453 454#define CX23885_HW_888_IR (1 << 0) 455#define CX23885_HW_AV_CORE (1 << 1) 456 457#define call_hw(dev, grpid, o, f, args...) \ 458 v4l2_device_call_all(&dev->v4l2_dev, grpid, o, f, ##args) 459 460extern struct v4l2_subdev *cx23885_find_hw(struct cx23885_dev *dev, u32 hw); 461 462#define SRAM_CH01 0 /* Video A */ 463#define SRAM_CH02 1 /* VBI A */ 464#define SRAM_CH03 2 /* Video B */ 465#define SRAM_CH04 3 /* Transport via B */ 466#define SRAM_CH05 4 /* VBI B */ 467#define SRAM_CH06 5 /* Video C */ 468#define SRAM_CH07 6 /* Transport via C */ 469#define SRAM_CH08 7 /* Audio Internal A */ 470#define SRAM_CH09 8 /* Audio Internal B */ 471#define SRAM_CH10 9 /* Audio External */ 472#define SRAM_CH11 10 /* COMB_3D_N */ 473#define SRAM_CH12 11 /* Comb 3D N1 */ 474#define SRAM_CH13 12 /* Comb 3D N2 */ 475#define SRAM_CH14 13 /* MOE Vid */ 476#define SRAM_CH15 14 /* MOE RSLT */ 477 478struct sram_channel { 479 char *name; 480 u32 cmds_start; 481 u32 ctrl_start; 482 u32 cdt; 483 u32 fifo_start; 484 u32 fifo_size; 485 u32 ptr1_reg; 486 u32 ptr2_reg; 487 u32 cnt1_reg; 488 u32 cnt2_reg; 489 u32 jumponly; 490}; 491 492/* ----------------------------------------------------------- */ 493 494#define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 495#define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 496 497#define cx_andor(reg, mask, value) \ 498 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 499 ((value) & (mask)), dev->lmmio+((reg)>>2)) 500 501#define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 502#define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 503 504/* ----------------------------------------------------------- */ 505/* cx23885-core.c */ 506 507extern int cx23885_sram_channel_setup(struct cx23885_dev *dev, 508 struct sram_channel *ch, 509 unsigned int bpl, u32 risc); 510 511extern void cx23885_sram_channel_dump(struct cx23885_dev *dev, 512 struct sram_channel *ch); 513 514extern int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, 515 u32 reg, u32 mask, u32 value); 516 517extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, 518 struct scatterlist *sglist, 519 unsigned int top_offset, unsigned int bottom_offset, 520 unsigned int bpl, unsigned int padding, unsigned int lines); 521 522extern int cx23885_risc_vbibuffer(struct pci_dev *pci, 523 struct btcx_riscmem *risc, struct scatterlist *sglist, 524 unsigned int top_offset, unsigned int bottom_offset, 525 unsigned int bpl, unsigned int padding, unsigned int lines); 526 527void cx23885_cancel_buffers(struct cx23885_tsport *port); 528 529extern int cx23885_restart_queue(struct cx23885_tsport *port, 530 struct cx23885_dmaqueue *q); 531 532extern void cx23885_wakeup(struct cx23885_tsport *port, 533 struct cx23885_dmaqueue *q, u32 count); 534 535extern void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask); 536extern void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask); 537extern u32 cx23885_gpio_get(struct cx23885_dev *dev, u32 mask); 538extern void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask, 539 int asoutput); 540 541extern void cx23885_irq_add_enable(struct cx23885_dev *dev, u32 mask); 542extern void cx23885_irq_enable(struct cx23885_dev *dev, u32 mask); 543extern void cx23885_irq_disable(struct cx23885_dev *dev, u32 mask); 544extern void cx23885_irq_remove(struct cx23885_dev *dev, u32 mask); 545 546/* ----------------------------------------------------------- */ 547/* cx23885-cards.c */ 548extern struct cx23885_board cx23885_boards[]; 549extern const unsigned int cx23885_bcount; 550 551extern struct cx23885_subid cx23885_subids[]; 552extern const unsigned int cx23885_idcount; 553 554extern int cx23885_tuner_callback(void *priv, int component, 555 int command, int arg); 556extern void cx23885_card_list(struct cx23885_dev *dev); 557extern int cx23885_ir_init(struct cx23885_dev *dev); 558extern void cx23885_ir_pci_int_enable(struct cx23885_dev *dev); 559extern void cx23885_ir_fini(struct cx23885_dev *dev); 560extern void cx23885_gpio_setup(struct cx23885_dev *dev); 561extern void cx23885_card_setup(struct cx23885_dev *dev); 562extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev); 563 564extern int cx23885_dvb_register(struct cx23885_tsport *port); 565extern int cx23885_dvb_unregister(struct cx23885_tsport *port); 566 567extern int cx23885_buf_prepare(struct videobuf_queue *q, 568 struct cx23885_tsport *port, 569 struct cx23885_buffer *buf, 570 enum v4l2_field field); 571extern void cx23885_buf_queue(struct cx23885_tsport *port, 572 struct cx23885_buffer *buf); 573extern void cx23885_free_buffer(struct videobuf_queue *q, 574 struct cx23885_buffer *buf); 575 576/* ----------------------------------------------------------- */ 577/* cx23885-video.c */ 578/* Video */ 579extern int cx23885_video_register(struct cx23885_dev *dev); 580extern void cx23885_video_unregister(struct cx23885_dev *dev); 581extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status); 582extern void cx23885_video_wakeup(struct cx23885_dev *dev, 583 struct cx23885_dmaqueue *q, u32 count); 584int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i); 585int cx23885_set_input(struct file *file, void *priv, unsigned int i); 586int cx23885_get_input(struct file *file, void *priv, unsigned int *i); 587int cx23885_set_frequency(struct file *file, void *priv, struct v4l2_frequency *f); 588int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl); 589int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl); 590int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm); 591 592/* ----------------------------------------------------------- */ 593/* cx23885-vbi.c */ 594extern int cx23885_vbi_fmt(struct file *file, void *priv, 595 struct v4l2_format *f); 596extern void cx23885_vbi_timeout(unsigned long data); 597extern struct videobuf_queue_ops cx23885_vbi_qops; 598extern int cx23885_restart_vbi_queue(struct cx23885_dev *dev, 599 struct cx23885_dmaqueue *q); 600extern int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status); 601 602/* cx23885-i2c.c */ 603extern int cx23885_i2c_register(struct cx23885_i2c *bus); 604extern int cx23885_i2c_unregister(struct cx23885_i2c *bus); 605extern void cx23885_av_clk(struct cx23885_dev *dev, int enable); 606 607/* ----------------------------------------------------------- */ 608/* cx23885-417.c */ 609extern int cx23885_417_register(struct cx23885_dev *dev); 610extern void cx23885_417_unregister(struct cx23885_dev *dev); 611extern int cx23885_irq_417(struct cx23885_dev *dev, u32 status); 612extern void cx23885_417_check_encoder(struct cx23885_dev *dev); 613extern void cx23885_mc417_init(struct cx23885_dev *dev); 614extern int mc417_memory_read(struct cx23885_dev *dev, u32 address, u32 *value); 615extern int mc417_memory_write(struct cx23885_dev *dev, u32 address, u32 value); 616extern int mc417_register_read(struct cx23885_dev *dev, 617 u16 address, u32 *value); 618extern int mc417_register_write(struct cx23885_dev *dev, 619 u16 address, u32 value); 620extern void mc417_gpio_set(struct cx23885_dev *dev, u32 mask); 621extern void mc417_gpio_clear(struct cx23885_dev *dev, u32 mask); 622extern void mc417_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput); 623 624/* ----------------------------------------------------------- */ 625/* cx23885-alsa.c */ 626extern struct cx23885_audio_dev *cx23885_audio_register( 627 struct cx23885_dev *dev); 628extern void cx23885_audio_unregister(struct cx23885_dev *dev); 629extern int cx23885_audio_irq(struct cx23885_dev *dev, u32 status, u32 mask); 630extern int cx23885_risc_databuffer(struct pci_dev *pci, 631 struct btcx_riscmem *risc, 632 struct scatterlist *sglist, 633 unsigned int bpl, 634 unsigned int lines, 635 unsigned int lpi); 636 637/* ----------------------------------------------------------- */ 638/* tv norms */ 639 640static inline unsigned int norm_maxw(v4l2_std_id norm) 641{ 642 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768; 643} 644 645static inline unsigned int norm_maxh(v4l2_std_id norm) 646{ 647 return (norm & V4L2_STD_625_50) ? 576 : 480; 648} 649 650static inline unsigned int norm_swidth(v4l2_std_id norm) 651{ 652 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922; 653} 654