2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
5 Ludovico Cavedon <cavedon@sssup.it>
6 Mauro Carvalho Chehab <mchehab@infradead.org>
8 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
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.
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.
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.
28 #include <linux/workqueue.h>
29 #include <linux/i2c.h>
30 #include <linux/mutex.h>
31 #include <linux/videodev2.h>
33 #include <media/videobuf-vmalloc.h>
34 #include <media/v4l2-device.h>
35 #include <media/ir-kbd-i2c.h>
36 #include <media/rc-core.h>
37 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
38 #include <media/videobuf-dvb.h>
40 #include "tuner-xc2028.h"
42 #include "em28xx-reg.h"
44 /* Boards supported by driver */
45 #define EM2800_BOARD_UNKNOWN 0
46 #define EM2820_BOARD_UNKNOWN 1
47 #define EM2820_BOARD_TERRATEC_CINERGY_250 2
48 #define EM2820_BOARD_PINNACLE_USB_2 3
49 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
50 #define EM2820_BOARD_MSI_VOX_USB_2 5
51 #define EM2800_BOARD_TERRATEC_CINERGY_200 6
52 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
53 #define EM2800_BOARD_KWORLD_USB2800 8
54 #define EM2820_BOARD_PINNACLE_DVC_90 9
55 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
56 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11
57 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12
58 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
59 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
60 #define EM2800_BOARD_VGEAR_POCKETTV 15
61 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
62 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
63 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
64 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19
65 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
66 #define EM2800_BOARD_GRABBEEX_USB2800 21
67 #define EM2750_BOARD_UNKNOWN 22
68 #define EM2750_BOARD_DLCW_130 23
69 #define EM2820_BOARD_DLINK_USB_TV 24
70 #define EM2820_BOARD_GADMEI_UTV310 25
71 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
72 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
73 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
74 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29
75 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
76 #define EM2821_BOARD_USBGEAR_VD204 31
77 #define EM2821_BOARD_SUPERCOMP_USB_2 32
78 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33
79 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34
80 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35
81 #define EM2860_BOARD_NETGMBH_CAM 36
82 #define EM2860_BOARD_GADMEI_UTV330 37
83 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
84 #define EM2861_BOARD_KWORLD_PVRTV_300U 39
85 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40
86 #define EM2870_BOARD_KWORLD_350U 41
87 #define EM2870_BOARD_KWORLD_355U 42
88 #define EM2870_BOARD_TERRATEC_XS 43
89 #define EM2870_BOARD_TERRATEC_XS_MT2060 44
90 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45
91 #define EM2870_BOARD_COMPRO_VIDEOMATE 46
92 #define EM2880_BOARD_KWORLD_DVB_305U 47
93 #define EM2880_BOARD_KWORLD_DVB_310U 48
94 #define EM2880_BOARD_MSI_DIGIVOX_AD 49
95 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
96 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
97 #define EM2881_BOARD_DNT_DA2_HYBRID 52
98 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
99 #define EM2882_BOARD_KWORLD_VS_DVBT 54
100 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55
101 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56
102 #define EM2883_BOARD_KWORLD_HYBRID_330U 57
103 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
104 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60
105 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61
106 #define EM2820_BOARD_GADMEI_TVR200 62
107 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63
108 #define EM2860_BOARD_EASYCAP 64
109 #define EM2820_BOARD_IODATA_GVMVP_SZ 65
110 #define EM2880_BOARD_EMPIRE_DUAL_TV 66
111 #define EM2860_BOARD_TERRATEC_GRABBY 67
112 #define EM2860_BOARD_TERRATEC_AV350 68
113 #define EM2882_BOARD_KWORLD_ATSC_315U 69
114 #define EM2882_BOARD_EVGA_INDTUBE 70
115 #define EM2820_BOARD_SILVERCREST_WEBCAM 71
116 #define EM2861_BOARD_GADMEI_UTV330PLUS 72
117 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
118 #define EM2800_BOARD_VC211A 74
119 #define EM2882_BOARD_DIKOM_DK300 75
120 #define EM2870_BOARD_KWORLD_A340 76
121 #define EM2874_BOARD_LEADERSHIP_ISDBT 77
122 #define EM28174_BOARD_PCTV_290E 78
123 #define EM2884_BOARD_TERRATEC_H5 79
124 #define EM28174_BOARD_PCTV_460E 80
125 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
126 #define EM2884_BOARD_CINERGY_HTC_STICK 82
127 #define EM2860_BOARD_HT_VIDBOX_NW03 83
128 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84
129 #define EM2884_BOARD_PCTV_520E 85
131 /* Limits minimum and default number of buffers */
132 #define EM28XX_MIN_BUF 4
133 #define EM28XX_DEF_BUF 8
135 /*Limits the max URB message size */
136 #define URB_MAX_CTRL_SIZE 80
138 /* Params for validated field */
139 #define EM28XX_BOARD_NOT_VALIDATED 1
140 #define EM28XX_BOARD_VALIDATED 0
142 /* Params for em28xx_cmd() audio */
143 #define EM28XX_START_AUDIO 1
144 #define EM28XX_STOP_AUDIO 0
146 /* maximum number of em28xx boards */
147 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
149 /* maximum number of frames that can be queued */
150 #define EM28XX_NUM_FRAMES 5
151 /* number of frames that get used for v4l2_read() */
152 #define EM28XX_NUM_READ_FRAMES 2
154 /* number of buffers for isoc transfers */
155 #define EM28XX_NUM_BUFS 5
156 #define EM28XX_DVB_NUM_BUFS 5
158 /* number of packets for each buffer
159 windows requests only 64 packets .. so we better do the same
160 this is what I found out for all alternate numbers there!
162 #define EM28XX_NUM_PACKETS 64
163 #define EM28XX_DVB_MAX_PACKETS 64
165 #define EM28XX_INTERLACED_DEFAULT 1
168 #define (use usbview if you want to get the other alternate number infos)
170 #define alternate number 2
171 #define Endpoint Address: 82
175 Max Packet Size: 1448
184 Max Packet Size: 3072
188 /* time to wait when stopping the isoc transfer */
189 #define EM28XX_URB_TIMEOUT \
190 msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
192 /* time in msecs to wait for i2c writes to finish */
193 #define EM2800_I2C_WRITE_TIMEOUT 20
204 struct em28xx_usb_isoc_bufs {
205 /* max packet size of isoc transaction */
208 /* number of packets in each buffer */
211 /* number of allocated urbs */
214 /* urb for isoc transfers */
217 /* transfer buffers for isoc transfer */
218 char **transfer_buffer;
221 struct em28xx_usb_isoc_ctl {
222 /* isoc transfer buffers for analog mode */
223 struct em28xx_usb_isoc_bufs analog_bufs;
225 /* isoc transfer buffers for digital mode */
226 struct em28xx_usb_isoc_bufs digital_bufs;
228 /* Last buffer command and region */
230 int pos, size, pktsize;
232 /* Last field: ODD or EVEN? */
235 /* Stores incomplete commands */
239 /* Stores already requested buffers */
240 struct em28xx_buffer *vid_buf;
241 struct em28xx_buffer *vbi_buf;
243 /* Stores the number of received fields */
246 /* isoc urb callback */
247 int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
251 /* Struct to enumberate video formats */
254 u32 fourcc; /* v4l2 format id */
259 /* buffer for one video frame */
260 struct em28xx_buffer {
261 /* common v4l buffer stuff -- must be first */
262 struct videobuf_buffer vb;
264 struct list_head frame;
269 struct em28xx_dmaqueue {
270 struct list_head active;
271 struct list_head queued;
273 wait_queue_head_t wq;
275 /* Counters to control buffer fill */
280 enum em28xx_io_method {
288 #define MAX_EM28XX_INPUT 4
289 enum enum28xx_itype {
290 EM28XX_VMUX_COMPOSITE1 = 1,
291 EM28XX_VMUX_COMPOSITE2,
292 EM28XX_VMUX_COMPOSITE3,
293 EM28XX_VMUX_COMPOSITE4,
295 EM28XX_VMUX_TELEVISION,
302 enum em28xx_ac97_mode {
305 EM28XX_AC97_SIGMATEL,
309 struct em28xx_audio_mode {
310 enum em28xx_ac97_mode ac97;
315 unsigned int has_audio:1;
317 unsigned int i2s_3rates:1;
318 unsigned int i2s_5rates:1;
321 /* em28xx has two audio inputs: tuner and line in.
322 However, on most devices, an auxiliary AC97 codec device is used.
323 The AC97 device may have several different inputs and outputs,
324 depending on their model. So, it is possible to use AC97 mixer to
325 address more than two different entries.
328 /* This is the only entry for em28xx tuner input */
329 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */
331 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */
333 /* Some less-common mixer setups */
334 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */
344 EM28XX_AOUT_MASTER = 1 << 0,
345 EM28XX_AOUT_LINE = 1 << 1,
346 EM28XX_AOUT_MONO = 1 << 2,
347 EM28XX_AOUT_LFE = 1 << 3,
348 EM28XX_AOUT_SURR = 1 << 4,
350 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
351 EM28XX_AOUT_PCM_IN = 1 << 7,
353 /* Bits 10-8 are used to indicate the PCM IN record select */
354 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
355 EM28XX_AOUT_PCM_CD = 1 << 8,
356 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
357 EM28XX_AOUT_PCM_AUX = 3 << 8,
358 EM28XX_AOUT_PCM_LINE = 4 << 8,
359 EM28XX_AOUT_PCM_STEREO = 5 << 8,
360 EM28XX_AOUT_PCM_MONO = 6 << 8,
361 EM28XX_AOUT_PCM_PHONE = 7 << 8,
364 static inline int ac97_return_record_select(int a_out)
366 return (a_out & 0x700) >> 8;
369 struct em28xx_reg_seq {
371 unsigned char val, mask;
375 struct em28xx_input {
376 enum enum28xx_itype type;
378 enum em28xx_amux amux;
379 enum em28xx_aout aout;
380 struct em28xx_reg_seq *gpio;
383 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
385 enum em28xx_decoder {
386 EM28XX_NODECODER = 0,
398 enum em28xx_adecoder {
399 EM28XX_NOADECODER = 0,
403 struct em28xx_board {
410 unsigned int tda9887_conf;
413 struct em28xx_reg_seq *dvb_gpio;
414 struct em28xx_reg_seq *suspend_gpio;
415 struct em28xx_reg_seq *tuner_gpio;
416 struct em28xx_reg_seq *mute_gpio;
418 unsigned int is_em2800:1;
419 unsigned int has_msp34xx:1;
420 unsigned int mts_firmware:1;
421 unsigned int max_range_640_480:1;
422 unsigned int has_dvb:1;
423 unsigned int has_snapshot_button:1;
424 unsigned int is_webcam:1;
425 unsigned int valid:1;
426 unsigned int has_ir_i2c:1;
428 unsigned char xclk, i2c_speed;
429 unsigned char radio_addr;
430 unsigned short tvaudio_addr;
432 enum em28xx_decoder decoder;
433 enum em28xx_adecoder adecoder;
435 struct em28xx_input input[MAX_EM28XX_INPUT];
436 struct em28xx_input radio;
440 struct em28xx_eeprom {
441 u32 id; /* 0x9567eb1a */
449 u16 string1, string2, string3;
455 enum em28xx_dev_state {
456 DEV_INITIALIZED = 0x01,
457 DEV_DISCONNECTED = 0x02,
458 DEV_MISCONFIGURED = 0x04,
461 #define EM28XX_AUDIO_BUFS 5
462 #define EM28XX_NUM_AUDIO_PACKETS 64
463 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
464 #define EM28XX_CAPTURE_STREAM_EN 1
466 /* em28xx extensions */
467 #define EM28XX_AUDIO 0x10
468 #define EM28XX_DVB 0x20
470 /* em28xx resource types (used for res_get/res_lock etc */
471 #define EM28XX_RESOURCE_VIDEO 0x01
472 #define EM28XX_RESOURCE_VBI 0x02
474 struct em28xx_audio {
476 char *transfer_buffer[EM28XX_AUDIO_BUFS];
477 struct urb *urb[EM28XX_AUDIO_BUFS];
478 struct usb_device *udev;
479 unsigned int capture_transfer_done;
480 struct snd_pcm_substream *capture_pcm_substream;
482 unsigned int hwptr_done_capture;
483 struct snd_card *sndcard;
494 unsigned int resources;
496 struct videobuf_queue vb_vidq;
497 struct videobuf_queue vb_vbiq;
499 enum v4l2_buf_type type;
502 /* main device struct */
504 /* generic device properties */
505 char name[30]; /* name (including minor) of the device */
506 int model; /* index in the device_data struct */
507 int devno; /* marks the number of this device */
508 enum em28xx_chip_id chip_id;
512 struct v4l2_device v4l2_dev;
513 struct em28xx_board board;
515 /* Webcam specific fields */
516 enum em28xx_sensor em28xx_sensor;
517 int sensor_xres, sensor_yres;
520 /* Allows progressive (e. g. non-interlaced) mode */
523 /* Vinmode/Vinctl used at the driver */
526 unsigned int has_audio_class:1;
527 unsigned int has_alsa_audio:1;
528 unsigned int is_audio_only:1;
530 /* Controls audio streaming */
531 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */
532 atomic_t stream_started; /* stream should be running if true */
534 struct em28xx_fmt *format;
536 struct em28xx_IR *ir;
538 /* Some older em28xx chips needs a waiting time after writing */
539 unsigned int wait_after_write;
541 struct list_head devlist;
543 u32 i2s_speed; /* I2S speed for audio digital stream */
545 struct em28xx_audio_mode audio_mode;
547 int tuner_type; /* type of the tuner */
548 int tuner_addr; /* tuner address */
551 struct i2c_adapter i2c_adap;
552 struct i2c_client i2c_client;
553 /* video for linux */
554 int users; /* user count for exclusive use */
555 struct video_device *vdev; /* video for linux device struct */
556 v4l2_std_id norm; /* selected tv norm */
557 int ctl_freq; /* selected frequency */
558 unsigned int ctl_input; /* selected input */
559 unsigned int ctl_ainput;/* selected audio input */
560 unsigned int ctl_aoutput;/* selected audio output */
563 /* frame properties */
564 int width; /* current frame width */
565 int height; /* current frame height */
566 unsigned hscale; /* horizontal scale factor (see datasheet) */
567 unsigned vscale; /* vertical scale factor (see datasheet) */
568 int interlaced; /* 1=interlace fileds, 0=just top fileds */
569 unsigned int video_bytesread; /* Number of bytes read */
571 unsigned long hash; /* eeprom hash - for boards with generic ID */
572 unsigned long i2c_hash; /* i2c devicelist hash -
573 for boards with generic ID */
575 struct em28xx_audio adev;
578 enum em28xx_dev_state state;
579 enum em28xx_io_method io;
581 /* vbi related state tracking */
584 unsigned char cur_field;
585 unsigned int vbi_width;
586 unsigned int vbi_height; /* lines per field */
588 struct work_struct request_module_wk;
592 struct mutex ctrl_urb_lock; /* protects urb_buf */
593 /* spinlock_t queue_lock; */
594 struct list_head inqueue, outqueue;
595 wait_queue_head_t open, wait_frame, wait_stream;
596 struct video_device *vbi_dev;
597 struct video_device *radio_dev;
599 /* resources in use */
600 unsigned int resources;
602 unsigned char eedata[256];
604 /* Isoc control struct */
605 struct em28xx_dmaqueue vidq;
606 struct em28xx_dmaqueue vbiq;
607 struct em28xx_usb_isoc_ctl isoc_ctl;
611 struct usb_device *udev; /* the usb device */
612 int alt; /* alternate */
613 int max_pkt_size; /* max packet size of isoc transaction */
614 int num_alt; /* Number of alternative settings */
615 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
616 int dvb_alt; /* alternate for DVB */
617 unsigned int dvb_max_pkt_size; /* wMaxPacketSize for DVB */
618 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
620 /* helper funcs that call usb_control_msg */
621 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
623 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
624 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
626 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
628 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
630 enum em28xx_mode mode;
632 /* register numbers for GPO/GPIO registers */
633 u16 reg_gpo_num, reg_gpio_num;
635 /* Caches GPO and GPIO registers */
636 unsigned char reg_gpo, reg_gpio;
638 /* Snapshot button */
639 char snapshot_button_path[30]; /* path of the input dev */
640 struct input_dev *sbutton_input_dev;
641 struct delayed_work sbutton_query_work;
643 struct em28xx_dvb *dvb;
645 /* I2C keyboard data */
646 struct IR_i2c_init_data init_data;
650 struct list_head next;
653 int (*init)(struct em28xx *);
654 int (*fini)(struct em28xx *);
657 /* Provided by em28xx-i2c.c */
658 void em28xx_do_i2c_scan(struct em28xx *dev);
659 int em28xx_i2c_register(struct em28xx *dev);
660 int em28xx_i2c_unregister(struct em28xx *dev);
662 /* Provided by em28xx-core.c */
664 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
665 void em28xx_queue_unusedframes(struct em28xx *dev);
666 void em28xx_release_buffers(struct em28xx *dev);
668 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
670 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
671 int em28xx_read_reg(struct em28xx *dev, u16 reg);
672 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
674 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
675 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
676 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
679 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
680 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
682 int em28xx_audio_analog_set(struct em28xx *dev);
683 int em28xx_audio_setup(struct em28xx *dev);
685 int em28xx_colorlevels_set_default(struct em28xx *dev);
686 int em28xx_capture_start(struct em28xx *dev, int start);
687 int em28xx_vbi_supported(struct em28xx *dev);
688 int em28xx_set_outfmt(struct em28xx *dev);
689 int em28xx_resolution_set(struct em28xx *dev);
690 int em28xx_set_alternate(struct em28xx *dev);
691 int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
692 int max_packets, int num_bufs, int max_pkt_size);
693 int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
694 int max_packets, int num_bufs, int max_pkt_size,
695 int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
696 void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
697 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
698 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
699 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
700 void em28xx_wake_i2c(struct em28xx *dev);
701 int em28xx_register_extension(struct em28xx_ops *dev);
702 void em28xx_unregister_extension(struct em28xx_ops *dev);
703 void em28xx_init_extension(struct em28xx *dev);
704 void em28xx_close_extension(struct em28xx *dev);
706 /* Provided by em28xx-video.c */
707 int em28xx_register_analog_devices(struct em28xx *dev);
708 void em28xx_release_analog_resources(struct em28xx *dev);
710 /* Provided by em28xx-cards.c */
711 extern int em2800_variant_detect(struct usb_device *udev, int model);
712 extern void em28xx_pre_card_setup(struct em28xx *dev);
713 extern void em28xx_card_setup(struct em28xx *dev);
714 extern struct em28xx_board em28xx_boards[];
715 extern struct usb_device_id em28xx_id_table[];
716 extern const unsigned int em28xx_bcount;
717 void em28xx_register_i2c_ir(struct em28xx *dev);
718 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
719 void em28xx_release_resources(struct em28xx *dev);
721 /* Provided by em28xx-input.c */
723 #ifdef CONFIG_VIDEO_EM28XX_RC
725 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
726 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
727 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
729 int em28xx_get_key_winfast_usbii_deluxe(struct IR_i2c *ir, u32 *ir_key,
731 void em28xx_register_snapshot_button(struct em28xx *dev);
732 void em28xx_deregister_snapshot_button(struct em28xx *dev);
734 int em28xx_ir_init(struct em28xx *dev);
735 int em28xx_ir_fini(struct em28xx *dev);
739 #define em28xx_get_key_terratec NULL
740 #define em28xx_get_key_em_haup NULL
741 #define em28xx_get_key_pinnacle_usb_grey NULL
742 #define em28xx_get_key_winfast_usbii_deluxe NULL
744 static inline void em28xx_register_snapshot_button(struct em28xx *dev) {}
745 static inline void em28xx_deregister_snapshot_button(struct em28xx *dev) {}
746 static inline int em28xx_ir_init(struct em28xx *dev) { return 0; }
747 static inline int em28xx_ir_fini(struct em28xx *dev) { return 0; }
751 /* Provided by em28xx-vbi.c */
752 extern struct videobuf_queue_ops em28xx_vbi_qops;
756 #define em28xx_err(fmt, arg...) do {\
757 printk(KERN_ERR fmt , ##arg); } while (0)
759 #define em28xx_errdev(fmt, arg...) do {\
760 printk(KERN_ERR "%s: "fmt,\
761 dev->name , ##arg); } while (0)
763 #define em28xx_info(fmt, arg...) do {\
764 printk(KERN_INFO "%s: "fmt,\
765 dev->name , ##arg); } while (0)
766 #define em28xx_warn(fmt, arg...) do {\
767 printk(KERN_WARNING "%s: "fmt,\
768 dev->name , ##arg); } while (0)
770 static inline int em28xx_compression_disable(struct em28xx *dev)
772 /* side effect of disabling scaler and mixer */
773 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
776 static inline int em28xx_contrast_get(struct em28xx *dev)
778 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
781 static inline int em28xx_brightness_get(struct em28xx *dev)
783 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
786 static inline int em28xx_saturation_get(struct em28xx *dev)
788 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
791 static inline int em28xx_u_balance_get(struct em28xx *dev)
793 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
796 static inline int em28xx_v_balance_get(struct em28xx *dev)
798 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
801 static inline int em28xx_gamma_get(struct em28xx *dev)
803 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
806 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
809 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
812 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
815 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
818 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
821 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
824 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
827 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
830 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
833 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
836 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
839 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
842 /*FIXME: maxw should be dependent of alt mode */
843 static inline unsigned int norm_maxw(struct em28xx *dev)
845 if (dev->board.is_webcam)
846 return dev->sensor_xres;
848 if (dev->board.max_range_640_480)
854 static inline unsigned int norm_maxh(struct em28xx *dev)
856 if (dev->board.is_webcam)
857 return dev->sensor_yres;
859 if (dev->board.max_range_640_480)
862 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;