em28xx.h revision 2fe3e2ee72ef17daad1d3769321bb7dd69a003a9
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_SUSPEND, 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 struct em28xx_reg_seq *suspend_gpio; 340 341 unsigned int is_em2800:1; 342 unsigned int has_msp34xx:1; 343 unsigned int mts_firmware:1; 344 unsigned int max_range_640_480:1; 345 unsigned int has_dvb:1; 346 unsigned int has_snapshot_button:1; 347 unsigned int valid:1; 348 349 unsigned char xclk, i2c_speed; 350 351 enum em28xx_decoder decoder; 352 353 struct em28xx_input input[MAX_EM28XX_INPUT]; 354 struct em28xx_input radio; 355 IR_KEYTAB_TYPE *ir_codes; 356}; 357 358struct em28xx_eeprom { 359 u32 id; /* 0x9567eb1a */ 360 u16 vendor_ID; 361 u16 product_ID; 362 363 u16 chip_conf; 364 365 u16 board_conf; 366 367 u16 string1, string2, string3; 368 369 u8 string_idx_table; 370}; 371 372/* device states */ 373enum em28xx_dev_state { 374 DEV_INITIALIZED = 0x01, 375 DEV_DISCONNECTED = 0x02, 376 DEV_MISCONFIGURED = 0x04, 377}; 378 379#define EM28XX_AUDIO_BUFS 5 380#define EM28XX_NUM_AUDIO_PACKETS 64 381#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 382#define EM28XX_CAPTURE_STREAM_EN 1 383 384/* em28xx extensions */ 385#define EM28XX_AUDIO 0x10 386#define EM28XX_DVB 0x20 387 388struct em28xx_audio { 389 char name[50]; 390 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 391 struct urb *urb[EM28XX_AUDIO_BUFS]; 392 struct usb_device *udev; 393 unsigned int capture_transfer_done; 394 struct snd_pcm_substream *capture_pcm_substream; 395 396 unsigned int hwptr_done_capture; 397 struct snd_card *sndcard; 398 399 int users, shutdown; 400 enum em28xx_stream_state capture_stream; 401 spinlock_t slock; 402}; 403 404struct em28xx; 405 406struct em28xx_fh { 407 struct em28xx *dev; 408 unsigned int stream_on:1; /* Locks streams */ 409 int radio; 410 411 struct videobuf_queue vb_vidq; 412 413 enum v4l2_buf_type type; 414}; 415 416/* main device struct */ 417struct em28xx { 418 /* generic device properties */ 419 char name[30]; /* name (including minor) of the device */ 420 int model; /* index in the device_data struct */ 421 int devno; /* marks the number of this device */ 422 enum em28xx_chip_id chip_id; 423 424 struct em28xx_board board; 425 426 unsigned int stream_on:1; /* Locks streams */ 427 unsigned int has_audio_class:1; 428 unsigned int has_alsa_audio:1; 429 430 struct em28xx_IR *ir; 431 432 /* Some older em28xx chips needs a waiting time after writing */ 433 unsigned int wait_after_write; 434 435 /* GPIO sequences for tuner callbacks */ 436 struct em28xx_reg_seq *tuner_gpio; 437 438 struct list_head devlist; 439 440 u32 i2s_speed; /* I2S speed for audio digital stream */ 441 442 struct em28xx_audio_mode audio_mode; 443 444 int tuner_type; /* type of the tuner */ 445 int tuner_addr; /* tuner address */ 446 int tda9887_conf; 447 /* i2c i/o */ 448 struct i2c_adapter i2c_adap; 449 struct i2c_client i2c_client; 450 /* video for linux */ 451 int users; /* user count for exclusive use */ 452 struct video_device *vdev; /* video for linux device struct */ 453 v4l2_std_id norm; /* selected tv norm */ 454 int ctl_freq; /* selected frequency */ 455 unsigned int ctl_input; /* selected input */ 456 unsigned int ctl_ainput;/* selected audio input */ 457 unsigned int ctl_aoutput;/* selected audio output */ 458 int mute; 459 int volume; 460 /* frame properties */ 461 int width; /* current frame width */ 462 int height; /* current frame height */ 463 unsigned hscale; /* horizontal scale factor (see datasheet) */ 464 unsigned vscale; /* vertical scale factor (see datasheet) */ 465 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 466 unsigned int video_bytesread; /* Number of bytes read */ 467 468 unsigned long hash; /* eeprom hash - for boards with generic ID */ 469 unsigned long i2c_hash; /* i2c devicelist hash - 470 for boards with generic ID */ 471 472 struct em28xx_audio *adev; 473 474 /* states */ 475 enum em28xx_dev_state state; 476 enum em28xx_io_method io; 477 478 struct work_struct request_module_wk; 479 480 /* locks */ 481 struct mutex lock; 482 struct mutex ctrl_urb_lock; /* protects urb_buf */ 483 /* spinlock_t queue_lock; */ 484 struct list_head inqueue, outqueue; 485 wait_queue_head_t open, wait_frame, wait_stream; 486 struct video_device *vbi_dev; 487 struct video_device *radio_dev; 488 489 unsigned char eedata[256]; 490 491 /* Isoc control struct */ 492 struct em28xx_dmaqueue vidq; 493 struct em28xx_usb_isoc_ctl isoc_ctl; 494 spinlock_t slock; 495 496 /* usb transfer */ 497 struct usb_device *udev; /* the usb device */ 498 int alt; /* alternate */ 499 int max_pkt_size; /* max packet size of isoc transaction */ 500 int num_alt; /* Number of alternative settings */ 501 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ 502 struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */ 503 char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */ 504 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 505 506 /* helper funcs that call usb_control_msg */ 507 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 508 char *buf, int len); 509 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 510 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 511 char *buf, int len); 512 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 513 char *buf, int len); 514 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 515 516 enum em28xx_mode mode; 517 518 /* register numbers for GPO/GPIO registers */ 519 u16 reg_gpo_num, reg_gpio_num; 520 521 /* Caches GPO and GPIO registers */ 522 unsigned char reg_gpo, reg_gpio; 523 524 /* Snapshot button */ 525 char snapshot_button_path[30]; /* path of the input dev */ 526 struct input_dev *sbutton_input_dev; 527 struct delayed_work sbutton_query_work; 528 529 struct em28xx_dvb *dvb; 530}; 531 532struct em28xx_ops { 533 struct list_head next; 534 char *name; 535 int id; 536 int (*init)(struct em28xx *); 537 int (*fini)(struct em28xx *); 538}; 539 540/* Provided by em28xx-i2c.c */ 541 542void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg); 543void em28xx_do_i2c_scan(struct em28xx *dev); 544int em28xx_i2c_register(struct em28xx *dev); 545int em28xx_i2c_unregister(struct em28xx *dev); 546 547/* Provided by em28xx-core.c */ 548 549u32 em28xx_request_buffers(struct em28xx *dev, u32 count); 550void em28xx_queue_unusedframes(struct em28xx *dev); 551void em28xx_release_buffers(struct em28xx *dev); 552 553int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 554 char *buf, int len); 555int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 556int em28xx_read_reg(struct em28xx *dev, u16 reg); 557int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 558 int len); 559int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 560int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 561 562int em28xx_audio_analog_set(struct em28xx *dev); 563int em28xx_audio_setup(struct em28xx *dev); 564 565int em28xx_colorlevels_set_default(struct em28xx *dev); 566int em28xx_capture_start(struct em28xx *dev, int start); 567int em28xx_outfmt_set_yuv422(struct em28xx *dev); 568int em28xx_resolution_set(struct em28xx *dev); 569int em28xx_set_alternate(struct em28xx *dev); 570int em28xx_init_isoc(struct em28xx *dev, int max_packets, 571 int num_bufs, int max_pkt_size, 572 int (*isoc_copy) (struct em28xx *dev, struct urb *urb)); 573void em28xx_uninit_isoc(struct em28xx *dev); 574int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 575int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 576 577/* Provided by em28xx-video.c */ 578int em28xx_register_extension(struct em28xx_ops *dev); 579void em28xx_unregister_extension(struct em28xx_ops *dev); 580 581/* Provided by em28xx-cards.c */ 582extern int em2800_variant_detect(struct usb_device *udev, int model); 583extern void em28xx_pre_card_setup(struct em28xx *dev); 584extern void em28xx_card_setup(struct em28xx *dev); 585extern struct em28xx_board em28xx_boards[]; 586extern struct usb_device_id em28xx_id_table[]; 587extern const unsigned int em28xx_bcount; 588void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir); 589int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 590 591/* Provided by em28xx-input.c */ 592int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 593int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); 594int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, 595 u32 *ir_raw); 596void em28xx_register_snapshot_button(struct em28xx *dev); 597void em28xx_deregister_snapshot_button(struct em28xx *dev); 598 599int em28xx_ir_init(struct em28xx *dev); 600int em28xx_ir_fini(struct em28xx *dev); 601 602/* printk macros */ 603 604#define em28xx_err(fmt, arg...) do {\ 605 printk(KERN_ERR fmt , ##arg); } while (0) 606 607#define em28xx_errdev(fmt, arg...) do {\ 608 printk(KERN_ERR "%s: "fmt,\ 609 dev->name , ##arg); } while (0) 610 611#define em28xx_info(fmt, arg...) do {\ 612 printk(KERN_INFO "%s: "fmt,\ 613 dev->name , ##arg); } while (0) 614#define em28xx_warn(fmt, arg...) do {\ 615 printk(KERN_WARNING "%s: "fmt,\ 616 dev->name , ##arg); } while (0) 617 618static inline int em28xx_compression_disable(struct em28xx *dev) 619{ 620 /* side effect of disabling scaler and mixer */ 621 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 622} 623 624static inline int em28xx_contrast_get(struct em28xx *dev) 625{ 626 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f; 627} 628 629static inline int em28xx_brightness_get(struct em28xx *dev) 630{ 631 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET); 632} 633 634static inline int em28xx_saturation_get(struct em28xx *dev) 635{ 636 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f; 637} 638 639static inline int em28xx_u_balance_get(struct em28xx *dev) 640{ 641 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET); 642} 643 644static inline int em28xx_v_balance_get(struct em28xx *dev) 645{ 646 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET); 647} 648 649static inline int em28xx_gamma_get(struct em28xx *dev) 650{ 651 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f; 652} 653 654static inline int em28xx_contrast_set(struct em28xx *dev, s32 val) 655{ 656 u8 tmp = (u8) val; 657 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1); 658} 659 660static inline int em28xx_brightness_set(struct em28xx *dev, s32 val) 661{ 662 u8 tmp = (u8) val; 663 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1); 664} 665 666static inline int em28xx_saturation_set(struct em28xx *dev, s32 val) 667{ 668 u8 tmp = (u8) val; 669 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1); 670} 671 672static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val) 673{ 674 u8 tmp = (u8) val; 675 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1); 676} 677 678static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val) 679{ 680 u8 tmp = (u8) val; 681 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1); 682} 683 684static inline int em28xx_gamma_set(struct em28xx *dev, s32 val) 685{ 686 u8 tmp = (u8) val; 687 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1); 688} 689 690/*FIXME: maxw should be dependent of alt mode */ 691static inline unsigned int norm_maxw(struct em28xx *dev) 692{ 693 if (dev->board.max_range_640_480) 694 return 640; 695 else 696 return 720; 697} 698 699static inline unsigned int norm_maxh(struct em28xx *dev) 700{ 701 if (dev->board.max_range_640_480) 702 return 480; 703 else 704 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 705} 706#endif 707