em28xx.h revision 122b77e59ed2de0692dfe45c87a93e98156fe03a
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 59 101 102/* Limits minimum and default number of buffers */ 103#define EM28XX_MIN_BUF 4 104#define EM28XX_DEF_BUF 8 105 106/*Limits the max URB message size */ 107#define URB_MAX_CTRL_SIZE 80 108 109/* Params for validated field */ 110#define EM28XX_BOARD_NOT_VALIDATED 1 111#define EM28XX_BOARD_VALIDATED 0 112 113/* maximum number of em28xx boards */ 114#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 115 116/* maximum number of frames that can be queued */ 117#define EM28XX_NUM_FRAMES 5 118/* number of frames that get used for v4l2_read() */ 119#define EM28XX_NUM_READ_FRAMES 2 120 121/* number of buffers for isoc transfers */ 122#define EM28XX_NUM_BUFS 5 123 124/* number of packets for each buffer 125 windows requests only 40 packets .. so we better do the same 126 this is what I found out for all alternate numbers there! 127 */ 128#define EM28XX_NUM_PACKETS 40 129 130/* default alternate; 0 means choose the best */ 131#define EM28XX_PINOUT 0 132 133#define EM28XX_INTERLACED_DEFAULT 1 134 135/* 136#define (use usbview if you want to get the other alternate number infos) 137#define 138#define alternate number 2 139#define Endpoint Address: 82 140 Direction: in 141 Attribute: 1 142 Type: Isoc 143 Max Packet Size: 1448 144 Interval: 125us 145 146 alternate number 7 147 148 Endpoint Address: 82 149 Direction: in 150 Attribute: 1 151 Type: Isoc 152 Max Packet Size: 3072 153 Interval: 125us 154*/ 155 156/* time to wait when stopping the isoc transfer */ 157#define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS) 158 159/* time in msecs to wait for i2c writes to finish */ 160#define EM2800_I2C_WRITE_TIMEOUT 20 161 162enum em28xx_mode { 163 EM28XX_MODE_UNDEFINED, 164 EM28XX_ANALOG_MODE, 165 EM28XX_DIGITAL_MODE, 166}; 167 168enum em28xx_stream_state { 169 STREAM_OFF, 170 STREAM_INTERRUPT, 171 STREAM_ON, 172}; 173 174struct em28xx; 175 176struct em28xx_usb_isoc_ctl { 177 /* max packet size of isoc transaction */ 178 int max_pkt_size; 179 180 /* number of allocated urbs */ 181 int num_bufs; 182 183 /* urb for isoc transfers */ 184 struct urb **urb; 185 186 /* transfer buffers for isoc transfer */ 187 char **transfer_buffer; 188 189 /* Last buffer command and region */ 190 u8 cmd; 191 int pos, size, pktsize; 192 193 /* Last field: ODD or EVEN? */ 194 int field; 195 196 /* Stores incomplete commands */ 197 u32 tmp_buf; 198 int tmp_buf_len; 199 200 /* Stores already requested buffers */ 201 struct em28xx_buffer *buf; 202 203 /* Stores the number of received fields */ 204 int nfields; 205 206 /* isoc urb callback */ 207 int (*isoc_copy) (struct em28xx *dev, struct urb *urb); 208 209}; 210 211struct em28xx_fmt { 212 char *name; 213 u32 fourcc; /* v4l2 format id */ 214}; 215 216/* buffer for one video frame */ 217struct em28xx_buffer { 218 /* common v4l buffer stuff -- must be first */ 219 struct videobuf_buffer vb; 220 221 struct list_head frame; 222 int top_field; 223 int receiving; 224}; 225 226struct em28xx_dmaqueue { 227 struct list_head active; 228 struct list_head queued; 229 230 wait_queue_head_t wq; 231 232 /* Counters to control buffer fill */ 233 int pos; 234}; 235 236/* io methods */ 237enum em28xx_io_method { 238 IO_NONE, 239 IO_READ, 240 IO_MMAP, 241}; 242 243/* inputs */ 244 245#define MAX_EM28XX_INPUT 4 246enum enum28xx_itype { 247 EM28XX_VMUX_COMPOSITE1 = 1, 248 EM28XX_VMUX_COMPOSITE2, 249 EM28XX_VMUX_COMPOSITE3, 250 EM28XX_VMUX_COMPOSITE4, 251 EM28XX_VMUX_SVIDEO, 252 EM28XX_VMUX_TELEVISION, 253 EM28XX_VMUX_CABLE, 254 EM28XX_VMUX_DVB, 255 EM28XX_VMUX_DEBUG, 256 EM28XX_RADIO, 257}; 258 259enum em28xx_ac97_mode { 260 EM28XX_NO_AC97 = 0, 261 EM28XX_AC97_EM202, 262 EM28XX_AC97_SIGMATEL, 263 EM28XX_AC97_OTHER, 264}; 265 266struct em28xx_audio_mode { 267 enum em28xx_ac97_mode ac97; 268 269 u16 ac97_feat; 270 u32 ac97_vendor_id; 271 272 unsigned int has_audio:1; 273 274 unsigned int i2s_3rates:1; 275 unsigned int i2s_5rates:1; 276}; 277 278/* em28xx has two audio inputs: tuner and line in. 279 However, on most devices, an auxiliary AC97 codec device is used. 280 The AC97 device may have several different inputs and outputs, 281 depending on their model. So, it is possible to use AC97 mixer to 282 address more than two different entries. 283 */ 284enum em28xx_amux { 285 /* This is the only entry for em28xx tuner input */ 286 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 287 288 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 289 290 /* Some less-common mixer setups */ 291 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 292 EM28XX_AMUX_PHONE, 293 EM28XX_AMUX_MIC, 294 EM28XX_AMUX_CD, 295 EM28XX_AMUX_AUX, 296 EM28XX_AMUX_PCM_OUT, 297}; 298 299enum em28xx_aout { 300 EM28XX_AOUT_MASTER = 1 << 0, 301 EM28XX_AOUT_LINE = 1 << 1, 302 EM28XX_AOUT_MONO = 1 << 2, 303 EM28XX_AOUT_LFE = 1 << 3, 304 EM28XX_AOUT_SURR = 1 << 4, 305}; 306 307struct em28xx_reg_seq { 308 int reg; 309 unsigned char val, mask; 310 int sleep; 311}; 312 313struct em28xx_input { 314 enum enum28xx_itype type; 315 unsigned int vmux; 316 enum em28xx_amux amux; 317 enum em28xx_aout aout; 318 struct em28xx_reg_seq *gpio; 319}; 320 321#define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 322 323enum em28xx_decoder { 324 EM28XX_NODECODER, 325 EM28XX_TVP5150, 326 EM28XX_SAA711X, 327}; 328 329struct em28xx_board { 330 char *name; 331 int vchannels; 332 int tuner_type; 333 int tuner_addr; 334 335 /* i2c flags */ 336 unsigned int tda9887_conf; 337 338 struct em28xx_reg_seq *dvb_gpio; 339 340 unsigned int is_em2800:1; 341 unsigned int has_msp34xx:1; 342 unsigned int mts_firmware:1; 343 unsigned int max_range_640_480:1; 344 unsigned int has_dvb:1; 345 unsigned int has_snapshot_button:1; 346 unsigned int valid:1; 347 348 unsigned char xclk, i2c_speed; 349 350 enum em28xx_decoder decoder; 351 352 struct em28xx_input input[MAX_EM28XX_INPUT]; 353 struct em28xx_input radio; 354 IR_KEYTAB_TYPE *ir_codes; 355}; 356 357struct em28xx_eeprom { 358 u32 id; /* 0x9567eb1a */ 359 u16 vendor_ID; 360 u16 product_ID; 361 362 u16 chip_conf; 363 364 u16 board_conf; 365 366 u16 string1, string2, string3; 367 368 u8 string_idx_table; 369}; 370 371/* device states */ 372enum em28xx_dev_state { 373 DEV_INITIALIZED = 0x01, 374 DEV_DISCONNECTED = 0x02, 375 DEV_MISCONFIGURED = 0x04, 376}; 377 378#define EM28XX_AUDIO_BUFS 5 379#define EM28XX_NUM_AUDIO_PACKETS 64 380#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 381#define EM28XX_CAPTURE_STREAM_EN 1 382 383/* em28xx extensions */ 384#define EM28XX_AUDIO 0x10 385#define EM28XX_DVB 0x20 386 387struct em28xx_audio { 388 char name[50]; 389 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 390 struct urb *urb[EM28XX_AUDIO_BUFS]; 391 struct usb_device *udev; 392 unsigned int capture_transfer_done; 393 struct snd_pcm_substream *capture_pcm_substream; 394 395 unsigned int hwptr_done_capture; 396 struct snd_card *sndcard; 397 398 int users, shutdown; 399 enum em28xx_stream_state capture_stream; 400 spinlock_t slock; 401}; 402 403struct em28xx; 404 405struct em28xx_fh { 406 struct em28xx *dev; 407 unsigned int stream_on:1; /* Locks streams */ 408 int radio; 409 410 struct videobuf_queue vb_vidq; 411 412 enum v4l2_buf_type type; 413}; 414 415/* main device struct */ 416struct em28xx { 417 /* generic device properties */ 418 char name[30]; /* name (including minor) of the device */ 419 int model; /* index in the device_data struct */ 420 int devno; /* marks the number of this device */ 421 enum em28xx_chip_id chip_id; 422 423 struct em28xx_board board; 424 425 unsigned int stream_on:1; /* Locks streams */ 426 unsigned int has_audio_class:1; 427 unsigned int has_alsa_audio:1; 428 429 struct em28xx_IR *ir; 430 431 /* Some older em28xx chips needs a waiting time after writing */ 432 unsigned int wait_after_write; 433 434 /* GPIO sequences for analog and digital mode */ 435 struct em28xx_reg_seq *analog_gpio, *digital_gpio; 436 437 /* GPIO sequences for tuner callbacks */ 438 struct em28xx_reg_seq *tuner_gpio; 439 440 struct list_head devlist; 441 442 u32 i2s_speed; /* I2S speed for audio digital stream */ 443 444 struct em28xx_audio_mode audio_mode; 445 446 int tuner_type; /* type of the tuner */ 447 int tuner_addr; /* tuner address */ 448 int tda9887_conf; 449 /* i2c i/o */ 450 struct i2c_adapter i2c_adap; 451 struct i2c_client i2c_client; 452 /* video for linux */ 453 int users; /* user count for exclusive use */ 454 struct video_device *vdev; /* video for linux device struct */ 455 v4l2_std_id norm; /* selected tv norm */ 456 int ctl_freq; /* selected frequency */ 457 unsigned int ctl_input; /* selected input */ 458 unsigned int ctl_ainput;/* selected audio input */ 459 unsigned int ctl_aoutput;/* selected audio output */ 460 int mute; 461 int volume; 462 /* frame properties */ 463 int width; /* current frame width */ 464 int height; /* current frame height */ 465 unsigned hscale; /* horizontal scale factor (see datasheet) */ 466 unsigned vscale; /* vertical scale factor (see datasheet) */ 467 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 468 unsigned int video_bytesread; /* Number of bytes read */ 469 470 unsigned long hash; /* eeprom hash - for boards with generic ID */ 471 unsigned long i2c_hash; /* i2c devicelist hash - 472 for boards with generic ID */ 473 474 struct em28xx_audio *adev; 475 476 /* states */ 477 enum em28xx_dev_state state; 478 enum em28xx_io_method io; 479 480 struct work_struct request_module_wk; 481 482 /* locks */ 483 struct mutex lock; 484 struct mutex ctrl_urb_lock; /* protects urb_buf */ 485 /* spinlock_t queue_lock; */ 486 struct list_head inqueue, outqueue; 487 wait_queue_head_t open, wait_frame, wait_stream; 488 struct video_device *vbi_dev; 489 struct video_device *radio_dev; 490 491 unsigned char eedata[256]; 492 493 /* Isoc control struct */ 494 struct em28xx_dmaqueue vidq; 495 struct em28xx_usb_isoc_ctl isoc_ctl; 496 spinlock_t slock; 497 498 /* usb transfer */ 499 struct usb_device *udev; /* the usb device */ 500 int alt; /* alternate */ 501 int max_pkt_size; /* max packet size of isoc transaction */ 502 int num_alt; /* Number of alternative settings */ 503 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ 504 struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */ 505 char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */ 506 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 507 508 /* helper funcs that call usb_control_msg */ 509 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 510 char *buf, int len); 511 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 512 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 513 char *buf, int len); 514 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 515 char *buf, int len); 516 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 517 518 enum em28xx_mode mode; 519 520 /* register numbers for GPO/GPIO registers */ 521 u16 reg_gpo_num, reg_gpio_num; 522 523 /* Caches GPO and GPIO registers */ 524 unsigned char reg_gpo, reg_gpio; 525 526 /* Snapshot button */ 527 char snapshot_button_path[30]; /* path of the input dev */ 528 struct input_dev *sbutton_input_dev; 529 struct delayed_work sbutton_query_work; 530 531 struct em28xx_dvb *dvb; 532}; 533 534struct em28xx_ops { 535 struct list_head next; 536 char *name; 537 int id; 538 int (*init)(struct em28xx *); 539 int (*fini)(struct em28xx *); 540}; 541 542/* Provided by em28xx-i2c.c */ 543 544void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg); 545void em28xx_do_i2c_scan(struct em28xx *dev); 546int em28xx_i2c_register(struct em28xx *dev); 547int em28xx_i2c_unregister(struct em28xx *dev); 548 549/* Provided by em28xx-core.c */ 550 551u32 em28xx_request_buffers(struct em28xx *dev, u32 count); 552void em28xx_queue_unusedframes(struct em28xx *dev); 553void em28xx_release_buffers(struct em28xx *dev); 554 555int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 556 char *buf, int len); 557int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 558int em28xx_read_reg(struct em28xx *dev, u16 reg); 559int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 560 int len); 561int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 562int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 563 564int em28xx_audio_analog_set(struct em28xx *dev); 565int em28xx_audio_setup(struct em28xx *dev); 566 567int em28xx_colorlevels_set_default(struct em28xx *dev); 568int em28xx_capture_start(struct em28xx *dev, int start); 569int em28xx_outfmt_set_yuv422(struct em28xx *dev); 570int em28xx_resolution_set(struct em28xx *dev); 571int em28xx_set_alternate(struct em28xx *dev); 572int em28xx_init_isoc(struct em28xx *dev, int max_packets, 573 int num_bufs, int max_pkt_size, 574 int (*isoc_copy) (struct em28xx *dev, struct urb *urb)); 575void em28xx_uninit_isoc(struct em28xx *dev); 576int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 577int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 578 579/* Provided by em28xx-video.c */ 580int em28xx_register_extension(struct em28xx_ops *dev); 581void em28xx_unregister_extension(struct em28xx_ops *dev); 582 583/* Provided by em28xx-cards.c */ 584extern int em2800_variant_detect(struct usb_device *udev, int model); 585extern void em28xx_pre_card_setup(struct em28xx *dev); 586extern void em28xx_card_setup(struct em28xx *dev); 587extern struct em28xx_board em28xx_boards[]; 588extern struct usb_device_id em28xx_id_table[]; 589extern const unsigned int em28xx_bcount; 590void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir); 591int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 592 593/* Provided by em28xx-input.c */ 594int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 595int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 596int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, 597 u32 *ir_raw); 598void em28xx_register_snapshot_button(struct em28xx *dev); 599void em28xx_deregister_snapshot_button(struct em28xx *dev); 600 601int em28xx_ir_init(struct em28xx *dev); 602int em28xx_ir_fini(struct em28xx *dev); 603 604/* printk macros */ 605 606#define em28xx_err(fmt, arg...) do {\ 607 printk(KERN_ERR fmt , ##arg); } while (0) 608 609#define em28xx_errdev(fmt, arg...) do {\ 610 printk(KERN_ERR "%s: "fmt,\ 611 dev->name , ##arg); } while (0) 612 613#define em28xx_info(fmt, arg...) do {\ 614 printk(KERN_INFO "%s: "fmt,\ 615 dev->name , ##arg); } while (0) 616#define em28xx_warn(fmt, arg...) do {\ 617 printk(KERN_WARNING "%s: "fmt,\ 618 dev->name , ##arg); } while (0) 619 620static inline int em28xx_compression_disable(struct em28xx *dev) 621{ 622 /* side effect of disabling scaler and mixer */ 623 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 624} 625 626static inline int em28xx_contrast_get(struct em28xx *dev) 627{ 628 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f; 629} 630 631static inline int em28xx_brightness_get(struct em28xx *dev) 632{ 633 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET); 634} 635 636static inline int em28xx_saturation_get(struct em28xx *dev) 637{ 638 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f; 639} 640 641static inline int em28xx_u_balance_get(struct em28xx *dev) 642{ 643 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET); 644} 645 646static inline int em28xx_v_balance_get(struct em28xx *dev) 647{ 648 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET); 649} 650 651static inline int em28xx_gamma_get(struct em28xx *dev) 652{ 653 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f; 654} 655 656static inline int em28xx_contrast_set(struct em28xx *dev, s32 val) 657{ 658 u8 tmp = (u8) val; 659 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1); 660} 661 662static inline int em28xx_brightness_set(struct em28xx *dev, s32 val) 663{ 664 u8 tmp = (u8) val; 665 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1); 666} 667 668static inline int em28xx_saturation_set(struct em28xx *dev, s32 val) 669{ 670 u8 tmp = (u8) val; 671 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1); 672} 673 674static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val) 675{ 676 u8 tmp = (u8) val; 677 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1); 678} 679 680static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val) 681{ 682 u8 tmp = (u8) val; 683 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1); 684} 685 686static inline int em28xx_gamma_set(struct em28xx *dev, s32 val) 687{ 688 u8 tmp = (u8) val; 689 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1); 690} 691 692/*FIXME: maxw should be dependent of alt mode */ 693static inline unsigned int norm_maxw(struct em28xx *dev) 694{ 695 if (dev->board.max_range_640_480) 696 return 640; 697 else 698 return 720; 699} 700 701static inline unsigned int norm_maxh(struct em28xx *dev) 702{ 703 if (dev->board.max_range_640_480) 704 return 480; 705 else 706 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 707} 708#endif 709