em28xx.h revision bddcf63313c6a4a85f94db092f45e31f530da691
1/* 2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices 3 4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> 5 Ludovico Cavedon <cavedon@sssup.it> 6 Mauro Carvalho Chehab <mchehab@infradead.org> 7 8 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 */ 24 25#ifndef _EM28XX_H 26#define _EM28XX_H 27 28#include <linux/videodev2.h> 29#include <media/videobuf-vmalloc.h> 30 31#include <linux/i2c.h> 32#include <linux/mutex.h> 33#include <media/ir-kbd-i2c.h> 34#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE) 35#include <media/videobuf-dvb.h> 36#endif 37#include "tuner-xc2028.h" 38#include "em28xx-reg.h" 39 40/* Boards supported by driver */ 41#define EM2800_BOARD_UNKNOWN 0 42#define EM2820_BOARD_UNKNOWN 1 43#define EM2820_BOARD_TERRATEC_CINERGY_250 2 44#define EM2820_BOARD_PINNACLE_USB_2 3 45#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 46#define EM2820_BOARD_MSI_VOX_USB_2 5 47#define EM2800_BOARD_TERRATEC_CINERGY_200 6 48#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 49#define EM2800_BOARD_KWORLD_USB2800 8 50#define EM2820_BOARD_PINNACLE_DVC_90 9 51#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 52#define EM2880_BOARD_TERRATEC_HYBRID_XS 11 53#define EM2820_BOARD_KWORLD_PVRTV2800RF 12 54#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 55#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 56#define EM2800_BOARD_VGEAR_POCKETTV 15 57#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16 58#define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 59#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 60#define EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA 19 61#define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20 62#define EM2800_BOARD_GRABBEEX_USB2800 21 63#define EM2750_BOARD_UNKNOWN 22 64#define EM2750_BOARD_DLCW_130 23 65#define EM2820_BOARD_DLINK_USB_TV 24 66#define EM2820_BOARD_GADMEI_UTV310 25 67#define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 68#define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 69#define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 70#define EM2820_BOARD_PINNACLE_DVC_100 29 71#define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 72#define EM2821_BOARD_USBGEAR_VD204 31 73#define EM2821_BOARD_SUPERCOMP_USB_2 32 74#define EM2821_BOARD_PROLINK_PLAYTV_USB2 33 75#define EM2860_BOARD_TERRATEC_HYBRID_XS 34 76#define EM2860_BOARD_TYPHOON_DVD_MAKER 35 77#define EM2860_BOARD_NETGMBH_CAM 36 78#define EM2860_BOARD_GADMEI_UTV330 37 79#define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38 80#define EM2861_BOARD_KWORLD_PVRTV_300U 39 81#define EM2861_BOARD_PLEXTOR_PX_TV100U 40 82#define EM2870_BOARD_KWORLD_350U 41 83#define EM2870_BOARD_KWORLD_355U 42 84#define EM2870_BOARD_TERRATEC_XS 43 85#define EM2870_BOARD_TERRATEC_XS_MT2060 44 86#define EM2870_BOARD_PINNACLE_PCTV_DVB 45 87#define EM2870_BOARD_COMPRO_VIDEOMATE 46 88#define EM2880_BOARD_KWORLD_DVB_305U 47 89#define EM2880_BOARD_KWORLD_DVB_310U 48 90#define EM2880_BOARD_MSI_DIGIVOX_AD 49 91#define EM2880_BOARD_MSI_DIGIVOX_AD_II 50 92#define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51 93#define EM2881_BOARD_DNT_DA2_HYBRID 52 94#define EM2881_BOARD_PINNACLE_HYBRID_PRO 53 95#define EM2882_BOARD_KWORLD_VS_DVBT 54 96#define EM2882_BOARD_TERRATEC_HYBRID_XS 55 97#define EM2882_BOARD_PINNACLE_HYBRID_PRO 56 98#define EM2883_BOARD_KWORLD_HYBRID_A316 57 99#define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58 100#define EM2874_BOARD_PINNACLE_PCTV_80E 59 101#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60 102 103/* Limits minimum and default number of buffers */ 104#define EM28XX_MIN_BUF 4 105#define EM28XX_DEF_BUF 8 106 107/*Limits the max URB message size */ 108#define URB_MAX_CTRL_SIZE 80 109 110/* Params for validated field */ 111#define EM28XX_BOARD_NOT_VALIDATED 1 112#define EM28XX_BOARD_VALIDATED 0 113 114/* maximum number of em28xx boards */ 115#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 116 117/* maximum number of frames that can be queued */ 118#define EM28XX_NUM_FRAMES 5 119/* number of frames that get used for v4l2_read() */ 120#define EM28XX_NUM_READ_FRAMES 2 121 122/* number of buffers for isoc transfers */ 123#define EM28XX_NUM_BUFS 5 124 125/* number of packets for each buffer 126 windows requests only 40 packets .. so we better do the same 127 this is what I found out for all alternate numbers there! 128 */ 129#define EM28XX_NUM_PACKETS 40 130 131/* default alternate; 0 means choose the best */ 132#define EM28XX_PINOUT 0 133 134#define EM28XX_INTERLACED_DEFAULT 1 135 136/* 137#define (use usbview if you want to get the other alternate number infos) 138#define 139#define alternate number 2 140#define Endpoint Address: 82 141 Direction: in 142 Attribute: 1 143 Type: Isoc 144 Max Packet Size: 1448 145 Interval: 125us 146 147 alternate number 7 148 149 Endpoint Address: 82 150 Direction: in 151 Attribute: 1 152 Type: Isoc 153 Max Packet Size: 3072 154 Interval: 125us 155*/ 156 157/* time to wait when stopping the isoc transfer */ 158#define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS) 159 160/* time in msecs to wait for i2c writes to finish */ 161#define EM2800_I2C_WRITE_TIMEOUT 20 162 163enum em28xx_mode { 164 EM28XX_SUSPEND, 165 EM28XX_ANALOG_MODE, 166 EM28XX_DIGITAL_MODE, 167}; 168 169enum em28xx_stream_state { 170 STREAM_OFF, 171 STREAM_INTERRUPT, 172 STREAM_ON, 173}; 174 175struct em28xx; 176 177struct em28xx_usb_isoc_ctl { 178 /* max packet size of isoc transaction */ 179 int max_pkt_size; 180 181 /* number of allocated urbs */ 182 int num_bufs; 183 184 /* urb for isoc transfers */ 185 struct urb **urb; 186 187 /* transfer buffers for isoc transfer */ 188 char **transfer_buffer; 189 190 /* Last buffer command and region */ 191 u8 cmd; 192 int pos, size, pktsize; 193 194 /* Last field: ODD or EVEN? */ 195 int field; 196 197 /* Stores incomplete commands */ 198 u32 tmp_buf; 199 int tmp_buf_len; 200 201 /* Stores already requested buffers */ 202 struct em28xx_buffer *buf; 203 204 /* Stores the number of received fields */ 205 int nfields; 206 207 /* isoc urb callback */ 208 int (*isoc_copy) (struct em28xx *dev, struct urb *urb); 209 210}; 211 212/* Struct to enumberate video formats */ 213struct em28xx_fmt { 214 char *name; 215 u32 fourcc; /* v4l2 format id */ 216 int depth; 217 int reg; 218}; 219 220/* buffer for one video frame */ 221struct em28xx_buffer { 222 /* common v4l buffer stuff -- must be first */ 223 struct videobuf_buffer vb; 224 225 struct list_head frame; 226 int top_field; 227 int receiving; 228}; 229 230struct em28xx_dmaqueue { 231 struct list_head active; 232 struct list_head queued; 233 234 wait_queue_head_t wq; 235 236 /* Counters to control buffer fill */ 237 int pos; 238}; 239 240/* io methods */ 241enum em28xx_io_method { 242 IO_NONE, 243 IO_READ, 244 IO_MMAP, 245}; 246 247/* inputs */ 248 249#define MAX_EM28XX_INPUT 4 250enum enum28xx_itype { 251 EM28XX_VMUX_COMPOSITE1 = 1, 252 EM28XX_VMUX_COMPOSITE2, 253 EM28XX_VMUX_COMPOSITE3, 254 EM28XX_VMUX_COMPOSITE4, 255 EM28XX_VMUX_SVIDEO, 256 EM28XX_VMUX_TELEVISION, 257 EM28XX_VMUX_CABLE, 258 EM28XX_VMUX_DVB, 259 EM28XX_VMUX_DEBUG, 260 EM28XX_RADIO, 261}; 262 263enum em28xx_ac97_mode { 264 EM28XX_NO_AC97 = 0, 265 EM28XX_AC97_EM202, 266 EM28XX_AC97_SIGMATEL, 267 EM28XX_AC97_OTHER, 268}; 269 270struct em28xx_audio_mode { 271 enum em28xx_ac97_mode ac97; 272 273 u16 ac97_feat; 274 u32 ac97_vendor_id; 275 276 unsigned int has_audio:1; 277 278 unsigned int i2s_3rates:1; 279 unsigned int i2s_5rates:1; 280}; 281 282/* em28xx has two audio inputs: tuner and line in. 283 However, on most devices, an auxiliary AC97 codec device is used. 284 The AC97 device may have several different inputs and outputs, 285 depending on their model. So, it is possible to use AC97 mixer to 286 address more than two different entries. 287 */ 288enum em28xx_amux { 289 /* This is the only entry for em28xx tuner input */ 290 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 291 292 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 293 294 /* Some less-common mixer setups */ 295 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 296 EM28XX_AMUX_PHONE, 297 EM28XX_AMUX_MIC, 298 EM28XX_AMUX_CD, 299 EM28XX_AMUX_AUX, 300 EM28XX_AMUX_PCM_OUT, 301}; 302 303enum em28xx_aout { 304 EM28XX_AOUT_MASTER = 1 << 0, 305 EM28XX_AOUT_LINE = 1 << 1, 306 EM28XX_AOUT_MONO = 1 << 2, 307 EM28XX_AOUT_LFE = 1 << 3, 308 EM28XX_AOUT_SURR = 1 << 4, 309}; 310 311struct em28xx_reg_seq { 312 int reg; 313 unsigned char val, mask; 314 int sleep; 315}; 316 317struct em28xx_input { 318 enum enum28xx_itype type; 319 unsigned int vmux; 320 enum em28xx_amux amux; 321 enum em28xx_aout aout; 322 struct em28xx_reg_seq *gpio; 323}; 324 325#define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 326 327enum em28xx_decoder { 328 EM28XX_NODECODER, 329 EM28XX_TVP5150, 330 EM28XX_SAA711X, 331}; 332 333struct em28xx_board { 334 char *name; 335 int vchannels; 336 int tuner_type; 337 int tuner_addr; 338 339 /* i2c flags */ 340 unsigned int tda9887_conf; 341 342 /* GPIO sequences */ 343 struct em28xx_reg_seq *dvb_gpio; 344 struct em28xx_reg_seq *suspend_gpio; 345 struct em28xx_reg_seq *tuner_gpio; 346 347 unsigned int is_em2800:1; 348 unsigned int has_msp34xx:1; 349 unsigned int mts_firmware:1; 350 unsigned int max_range_640_480:1; 351 unsigned int has_dvb:1; 352 unsigned int has_snapshot_button:1; 353 unsigned int valid:1; 354 355 unsigned char xclk, i2c_speed; 356 357 enum em28xx_decoder decoder; 358 359 struct em28xx_input input[MAX_EM28XX_INPUT]; 360 struct em28xx_input radio; 361 IR_KEYTAB_TYPE *ir_codes; 362}; 363 364struct em28xx_eeprom { 365 u32 id; /* 0x9567eb1a */ 366 u16 vendor_ID; 367 u16 product_ID; 368 369 u16 chip_conf; 370 371 u16 board_conf; 372 373 u16 string1, string2, string3; 374 375 u8 string_idx_table; 376}; 377 378/* device states */ 379enum em28xx_dev_state { 380 DEV_INITIALIZED = 0x01, 381 DEV_DISCONNECTED = 0x02, 382 DEV_MISCONFIGURED = 0x04, 383}; 384 385#define EM28XX_AUDIO_BUFS 5 386#define EM28XX_NUM_AUDIO_PACKETS 64 387#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 388#define EM28XX_CAPTURE_STREAM_EN 1 389 390/* em28xx extensions */ 391#define EM28XX_AUDIO 0x10 392#define EM28XX_DVB 0x20 393 394struct em28xx_audio { 395 char name[50]; 396 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 397 struct urb *urb[EM28XX_AUDIO_BUFS]; 398 struct usb_device *udev; 399 unsigned int capture_transfer_done; 400 struct snd_pcm_substream *capture_pcm_substream; 401 402 unsigned int hwptr_done_capture; 403 struct snd_card *sndcard; 404 405 int users, shutdown; 406 enum em28xx_stream_state capture_stream; 407 spinlock_t slock; 408}; 409 410struct em28xx; 411 412struct em28xx_fh { 413 struct em28xx *dev; 414 unsigned int stream_on:1; /* Locks streams */ 415 int radio; 416 417 struct videobuf_queue vb_vidq; 418 419 enum v4l2_buf_type type; 420}; 421 422/* main device struct */ 423struct em28xx { 424 /* generic device properties */ 425 char name[30]; /* name (including minor) of the device */ 426 int model; /* index in the device_data struct */ 427 int devno; /* marks the number of this device */ 428 enum em28xx_chip_id chip_id; 429 430 struct em28xx_board board; 431 432 unsigned int stream_on:1; /* Locks streams */ 433 unsigned int has_audio_class:1; 434 unsigned int has_alsa_audio:1; 435 436 struct em28xx_fmt *format; 437 438 struct em28xx_IR *ir; 439 440 /* Some older em28xx chips needs a waiting time after writing */ 441 unsigned int wait_after_write; 442 443 struct list_head devlist; 444 445 u32 i2s_speed; /* I2S speed for audio digital stream */ 446 447 struct em28xx_audio_mode audio_mode; 448 449 int tuner_type; /* type of the tuner */ 450 int tuner_addr; /* tuner address */ 451 int tda9887_conf; 452 /* i2c i/o */ 453 struct i2c_adapter i2c_adap; 454 struct i2c_client i2c_client; 455 /* video for linux */ 456 int users; /* user count for exclusive use */ 457 struct video_device *vdev; /* video for linux device struct */ 458 v4l2_std_id norm; /* selected tv norm */ 459 int ctl_freq; /* selected frequency */ 460 unsigned int ctl_input; /* selected input */ 461 unsigned int ctl_ainput;/* selected audio input */ 462 unsigned int ctl_aoutput;/* selected audio output */ 463 int mute; 464 int volume; 465 /* frame properties */ 466 int width; /* current frame width */ 467 int height; /* current frame height */ 468 unsigned hscale; /* horizontal scale factor (see datasheet) */ 469 unsigned vscale; /* vertical scale factor (see datasheet) */ 470 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 471 unsigned int video_bytesread; /* Number of bytes read */ 472 473 unsigned long hash; /* eeprom hash - for boards with generic ID */ 474 unsigned long i2c_hash; /* i2c devicelist hash - 475 for boards with generic ID */ 476 477 struct em28xx_audio *adev; 478 479 /* states */ 480 enum em28xx_dev_state state; 481 enum em28xx_io_method io; 482 483 struct work_struct request_module_wk; 484 485 /* locks */ 486 struct mutex lock; 487 struct mutex ctrl_urb_lock; /* protects urb_buf */ 488 /* spinlock_t queue_lock; */ 489 struct list_head inqueue, outqueue; 490 wait_queue_head_t open, wait_frame, wait_stream; 491 struct video_device *vbi_dev; 492 struct video_device *radio_dev; 493 494 unsigned char eedata[256]; 495 496 /* Isoc control struct */ 497 struct em28xx_dmaqueue vidq; 498 struct em28xx_usb_isoc_ctl isoc_ctl; 499 spinlock_t slock; 500 501 /* usb transfer */ 502 struct usb_device *udev; /* the usb device */ 503 int alt; /* alternate */ 504 int max_pkt_size; /* max packet size of isoc transaction */ 505 int num_alt; /* Number of alternative settings */ 506 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ 507 struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */ 508 char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */ 509 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 510 511 /* helper funcs that call usb_control_msg */ 512 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 513 char *buf, int len); 514 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 515 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 516 char *buf, int len); 517 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 518 char *buf, int len); 519 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 520 521 enum em28xx_mode mode; 522 523 /* register numbers for GPO/GPIO registers */ 524 u16 reg_gpo_num, reg_gpio_num; 525 526 /* Caches GPO and GPIO registers */ 527 unsigned char reg_gpo, reg_gpio; 528 529 /* Snapshot button */ 530 char snapshot_button_path[30]; /* path of the input dev */ 531 struct input_dev *sbutton_input_dev; 532 struct delayed_work sbutton_query_work; 533 534 struct em28xx_dvb *dvb; 535}; 536 537struct em28xx_ops { 538 struct list_head next; 539 char *name; 540 int id; 541 int (*init)(struct em28xx *); 542 int (*fini)(struct em28xx *); 543}; 544 545/* Provided by em28xx-i2c.c */ 546 547void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg); 548void em28xx_do_i2c_scan(struct em28xx *dev); 549int em28xx_i2c_register(struct em28xx *dev); 550int em28xx_i2c_unregister(struct em28xx *dev); 551 552/* Provided by em28xx-core.c */ 553 554u32 em28xx_request_buffers(struct em28xx *dev, u32 count); 555void em28xx_queue_unusedframes(struct em28xx *dev); 556void em28xx_release_buffers(struct em28xx *dev); 557 558int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 559 char *buf, int len); 560int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 561int em28xx_read_reg(struct em28xx *dev, u16 reg); 562int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 563 int len); 564int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 565int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 566 567int em28xx_audio_analog_set(struct em28xx *dev); 568int em28xx_audio_setup(struct em28xx *dev); 569 570int em28xx_colorlevels_set_default(struct em28xx *dev); 571int em28xx_capture_start(struct em28xx *dev, int start); 572int em28xx_set_outfmt(struct em28xx *dev); 573int em28xx_resolution_set(struct em28xx *dev); 574int em28xx_set_alternate(struct em28xx *dev); 575int em28xx_init_isoc(struct em28xx *dev, int max_packets, 576 int num_bufs, int max_pkt_size, 577 int (*isoc_copy) (struct em28xx *dev, struct urb *urb)); 578void em28xx_uninit_isoc(struct em28xx *dev); 579int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 580int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 581 582/* Provided by em28xx-video.c */ 583int em28xx_register_extension(struct em28xx_ops *dev); 584void em28xx_unregister_extension(struct em28xx_ops *dev); 585 586/* Provided by em28xx-cards.c */ 587extern int em2800_variant_detect(struct usb_device *udev, int model); 588extern void em28xx_pre_card_setup(struct em28xx *dev); 589extern void em28xx_card_setup(struct em28xx *dev); 590extern struct em28xx_board em28xx_boards[]; 591extern struct usb_device_id em28xx_id_table[]; 592extern const unsigned int em28xx_bcount; 593void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir); 594int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 595 596/* Provided by em28xx-input.c */ 597int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 598int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 599int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, 600 u32 *ir_raw); 601void em28xx_register_snapshot_button(struct em28xx *dev); 602void em28xx_deregister_snapshot_button(struct em28xx *dev); 603 604int em28xx_ir_init(struct em28xx *dev); 605int em28xx_ir_fini(struct em28xx *dev); 606 607/* printk macros */ 608 609#define em28xx_err(fmt, arg...) do {\ 610 printk(KERN_ERR fmt , ##arg); } while (0) 611 612#define em28xx_errdev(fmt, arg...) do {\ 613 printk(KERN_ERR "%s: "fmt,\ 614 dev->name , ##arg); } while (0) 615 616#define em28xx_info(fmt, arg...) do {\ 617 printk(KERN_INFO "%s: "fmt,\ 618 dev->name , ##arg); } while (0) 619#define em28xx_warn(fmt, arg...) do {\ 620 printk(KERN_WARNING "%s: "fmt,\ 621 dev->name , ##arg); } while (0) 622 623static inline int em28xx_compression_disable(struct em28xx *dev) 624{ 625 /* side effect of disabling scaler and mixer */ 626 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 627} 628 629static inline int em28xx_contrast_get(struct em28xx *dev) 630{ 631 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f; 632} 633 634static inline int em28xx_brightness_get(struct em28xx *dev) 635{ 636 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET); 637} 638 639static inline int em28xx_saturation_get(struct em28xx *dev) 640{ 641 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f; 642} 643 644static inline int em28xx_u_balance_get(struct em28xx *dev) 645{ 646 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET); 647} 648 649static inline int em28xx_v_balance_get(struct em28xx *dev) 650{ 651 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET); 652} 653 654static inline int em28xx_gamma_get(struct em28xx *dev) 655{ 656 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f; 657} 658 659static inline int em28xx_contrast_set(struct em28xx *dev, s32 val) 660{ 661 u8 tmp = (u8) val; 662 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1); 663} 664 665static inline int em28xx_brightness_set(struct em28xx *dev, s32 val) 666{ 667 u8 tmp = (u8) val; 668 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1); 669} 670 671static inline int em28xx_saturation_set(struct em28xx *dev, s32 val) 672{ 673 u8 tmp = (u8) val; 674 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1); 675} 676 677static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val) 678{ 679 u8 tmp = (u8) val; 680 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1); 681} 682 683static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val) 684{ 685 u8 tmp = (u8) val; 686 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1); 687} 688 689static inline int em28xx_gamma_set(struct em28xx *dev, s32 val) 690{ 691 u8 tmp = (u8) val; 692 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1); 693} 694 695/*FIXME: maxw should be dependent of alt mode */ 696static inline unsigned int norm_maxw(struct em28xx *dev) 697{ 698 if (dev->board.max_range_640_480) 699 return 640; 700 else 701 return 720; 702} 703 704static inline unsigned int norm_maxh(struct em28xx *dev) 705{ 706 if (dev->board.max_range_640_480) 707 return 480; 708 else 709 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 710} 711#endif 712