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_510E 85
130 #define EM2884_BOARD_PCTV_520E 86
132 /* Limits minimum and default number of buffers */
133 #define EM28XX_MIN_BUF 4
134 #define EM28XX_DEF_BUF 8
136 /*Limits the max URB message size */
137 #define URB_MAX_CTRL_SIZE 80
139 /* Params for validated field */
140 #define EM28XX_BOARD_NOT_VALIDATED 1
141 #define EM28XX_BOARD_VALIDATED 0
143 /* Params for em28xx_cmd() audio */
144 #define EM28XX_START_AUDIO 1
145 #define EM28XX_STOP_AUDIO 0
147 /* maximum number of em28xx boards */
148 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
150 /* maximum number of frames that can be queued */
151 #define EM28XX_NUM_FRAMES 5
152 /* number of frames that get used for v4l2_read() */
153 #define EM28XX_NUM_READ_FRAMES 2
155 /* number of buffers for isoc transfers */
156 #define EM28XX_NUM_BUFS 5
157 #define EM28XX_DVB_NUM_BUFS 5
159 /* number of packets for each buffer
160 windows requests only 64 packets .. so we better do the same
161 this is what I found out for all alternate numbers there!
163 #define EM28XX_NUM_PACKETS 64
164 #define EM28XX_DVB_MAX_PACKETS 64
166 #define EM28XX_INTERLACED_DEFAULT 1
169 #define (use usbview if you want to get the other alternate number infos)
171 #define alternate number 2
172 #define Endpoint Address: 82
176 Max Packet Size: 1448
185 Max Packet Size: 3072
189 /* time to wait when stopping the isoc transfer */
190 #define EM28XX_URB_TIMEOUT \
191 msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
193 /* time in msecs to wait for i2c writes to finish */
194 #define EM2800_I2C_WRITE_TIMEOUT 20
205 struct em28xx_usb_isoc_bufs
{
206 /* max packet size of isoc transaction */
209 /* number of packets in each buffer */
212 /* number of allocated urbs */
215 /* urb for isoc transfers */
218 /* transfer buffers for isoc transfer */
219 char **transfer_buffer
;
222 struct em28xx_usb_isoc_ctl
{
223 /* isoc transfer buffers for analog mode */
224 struct em28xx_usb_isoc_bufs analog_bufs
;
226 /* isoc transfer buffers for digital mode */
227 struct em28xx_usb_isoc_bufs digital_bufs
;
229 /* Stores already requested buffers */
230 struct em28xx_buffer
*vid_buf
;
231 struct em28xx_buffer
*vbi_buf
;
233 /* isoc urb callback */
234 int (*isoc_copy
) (struct em28xx
*dev
, struct urb
*urb
);
238 /* Struct to enumberate video formats */
241 u32 fourcc
; /* v4l2 format id */
246 /* buffer for one video frame */
247 struct em28xx_buffer
{
248 /* common v4l buffer stuff -- must be first */
249 struct videobuf_buffer vb
;
251 struct list_head frame
;
255 struct em28xx_dmaqueue
{
256 struct list_head active
;
258 wait_queue_head_t wq
;
260 /* Counters to control buffer fill */
266 #define MAX_EM28XX_INPUT 4
267 enum enum28xx_itype
{
268 EM28XX_VMUX_COMPOSITE1
= 1,
269 EM28XX_VMUX_COMPOSITE2
,
270 EM28XX_VMUX_COMPOSITE3
,
271 EM28XX_VMUX_COMPOSITE4
,
273 EM28XX_VMUX_TELEVISION
,
280 enum em28xx_ac97_mode
{
283 EM28XX_AC97_SIGMATEL
,
287 struct em28xx_audio_mode
{
288 enum em28xx_ac97_mode ac97
;
293 unsigned int has_audio
:1;
295 unsigned int i2s_3rates
:1;
296 unsigned int i2s_5rates
:1;
299 /* em28xx has two audio inputs: tuner and line in.
300 However, on most devices, an auxiliary AC97 codec device is used.
301 The AC97 device may have several different inputs and outputs,
302 depending on their model. So, it is possible to use AC97 mixer to
303 address more than two different entries.
306 /* This is the only entry for em28xx tuner input */
307 EM28XX_AMUX_VIDEO
, /* em28xx tuner, AC97 mixer Video */
309 EM28XX_AMUX_LINE_IN
, /* AC97 mixer Line In */
311 /* Some less-common mixer setups */
312 EM28XX_AMUX_VIDEO2
, /* em28xx Line in, AC97 mixer Video */
322 EM28XX_AOUT_MASTER
= 1 << 0,
323 EM28XX_AOUT_LINE
= 1 << 1,
324 EM28XX_AOUT_MONO
= 1 << 2,
325 EM28XX_AOUT_LFE
= 1 << 3,
326 EM28XX_AOUT_SURR
= 1 << 4,
328 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
329 EM28XX_AOUT_PCM_IN
= 1 << 7,
331 /* Bits 10-8 are used to indicate the PCM IN record select */
332 EM28XX_AOUT_PCM_MIC_PCM
= 0 << 8,
333 EM28XX_AOUT_PCM_CD
= 1 << 8,
334 EM28XX_AOUT_PCM_VIDEO
= 2 << 8,
335 EM28XX_AOUT_PCM_AUX
= 3 << 8,
336 EM28XX_AOUT_PCM_LINE
= 4 << 8,
337 EM28XX_AOUT_PCM_STEREO
= 5 << 8,
338 EM28XX_AOUT_PCM_MONO
= 6 << 8,
339 EM28XX_AOUT_PCM_PHONE
= 7 << 8,
342 static inline int ac97_return_record_select(int a_out
)
344 return (a_out
& 0x700) >> 8;
347 struct em28xx_reg_seq
{
349 unsigned char val
, mask
;
353 struct em28xx_input
{
354 enum enum28xx_itype type
;
356 enum em28xx_amux amux
;
357 enum em28xx_aout aout
;
358 struct em28xx_reg_seq
*gpio
;
361 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
363 enum em28xx_decoder
{
364 EM28XX_NODECODER
= 0,
376 enum em28xx_adecoder
{
377 EM28XX_NOADECODER
= 0,
381 struct em28xx_board
{
388 unsigned int tda9887_conf
;
391 struct em28xx_reg_seq
*dvb_gpio
;
392 struct em28xx_reg_seq
*suspend_gpio
;
393 struct em28xx_reg_seq
*tuner_gpio
;
394 struct em28xx_reg_seq
*mute_gpio
;
396 unsigned int is_em2800
:1;
397 unsigned int has_msp34xx
:1;
398 unsigned int mts_firmware
:1;
399 unsigned int max_range_640_480
:1;
400 unsigned int has_dvb
:1;
401 unsigned int has_snapshot_button
:1;
402 unsigned int is_webcam
:1;
403 unsigned int valid
:1;
404 unsigned int has_ir_i2c
:1;
406 unsigned char xclk
, i2c_speed
;
407 unsigned char radio_addr
;
408 unsigned short tvaudio_addr
;
410 enum em28xx_decoder decoder
;
411 enum em28xx_adecoder adecoder
;
413 struct em28xx_input input
[MAX_EM28XX_INPUT
];
414 struct em28xx_input radio
;
418 struct em28xx_eeprom
{
419 u32 id
; /* 0x9567eb1a */
427 u16 string1
, string2
, string3
;
433 enum em28xx_dev_state
{
434 DEV_INITIALIZED
= 0x01,
435 DEV_DISCONNECTED
= 0x02,
436 DEV_MISCONFIGURED
= 0x04,
439 #define EM28XX_AUDIO_BUFS 5
440 #define EM28XX_NUM_AUDIO_PACKETS 64
441 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
442 #define EM28XX_CAPTURE_STREAM_EN 1
444 /* em28xx extensions */
445 #define EM28XX_AUDIO 0x10
446 #define EM28XX_DVB 0x20
447 #define EM28XX_RC 0x30
449 /* em28xx resource types (used for res_get/res_lock etc */
450 #define EM28XX_RESOURCE_VIDEO 0x01
451 #define EM28XX_RESOURCE_VBI 0x02
453 struct em28xx_audio
{
455 char *transfer_buffer
[EM28XX_AUDIO_BUFS
];
456 struct urb
*urb
[EM28XX_AUDIO_BUFS
];
457 struct usb_device
*udev
;
458 unsigned int capture_transfer_done
;
459 struct snd_pcm_substream
*capture_pcm_substream
;
461 unsigned int hwptr_done_capture
;
462 struct snd_card
*sndcard
;
473 unsigned int resources
;
475 struct videobuf_queue vb_vidq
;
476 struct videobuf_queue vb_vbiq
;
478 enum v4l2_buf_type type
;
481 /* main device struct */
483 /* generic device properties */
484 char name
[30]; /* name (including minor) of the device */
485 int model
; /* index in the device_data struct */
486 int devno
; /* marks the number of this device */
487 enum em28xx_chip_id chip_id
;
491 struct v4l2_device v4l2_dev
;
492 struct em28xx_board board
;
494 /* Webcam specific fields */
495 enum em28xx_sensor em28xx_sensor
;
496 int sensor_xres
, sensor_yres
;
499 /* Allows progressive (e. g. non-interlaced) mode */
502 /* Vinmode/Vinctl used at the driver */
505 unsigned int has_audio_class
:1;
506 unsigned int has_alsa_audio
:1;
507 unsigned int is_audio_only
:1;
509 /* Controls audio streaming */
510 struct work_struct wq_trigger
; /* Trigger to start/stop audio for alsa module */
511 atomic_t stream_started
; /* stream should be running if true */
513 struct em28xx_fmt
*format
;
515 struct em28xx_IR
*ir
;
517 /* Some older em28xx chips needs a waiting time after writing */
518 unsigned int wait_after_write
;
520 struct list_head devlist
;
522 u32 i2s_speed
; /* I2S speed for audio digital stream */
524 struct em28xx_audio_mode audio_mode
;
526 int tuner_type
; /* type of the tuner */
527 int tuner_addr
; /* tuner address */
530 struct i2c_adapter i2c_adap
;
531 struct i2c_client i2c_client
;
532 /* video for linux */
533 int users
; /* user count for exclusive use */
534 struct video_device
*vdev
; /* video for linux device struct */
535 v4l2_std_id norm
; /* selected tv norm */
536 int ctl_freq
; /* selected frequency */
537 unsigned int ctl_input
; /* selected input */
538 unsigned int ctl_ainput
;/* selected audio input */
539 unsigned int ctl_aoutput
;/* selected audio output */
542 /* frame properties */
543 int width
; /* current frame width */
544 int height
; /* current frame height */
545 unsigned hscale
; /* horizontal scale factor (see datasheet) */
546 unsigned vscale
; /* vertical scale factor (see datasheet) */
547 int interlaced
; /* 1=interlace fileds, 0=just top fileds */
548 unsigned int video_bytesread
; /* Number of bytes read */
550 unsigned long hash
; /* eeprom hash - for boards with generic ID */
551 unsigned long i2c_hash
; /* i2c devicelist hash -
552 for boards with generic ID */
554 struct em28xx_audio adev
;
557 enum em28xx_dev_state state
;
559 /* vbi related state tracking */
562 unsigned char cur_field
;
563 unsigned int vbi_width
;
564 unsigned int vbi_height
; /* lines per field */
566 struct work_struct request_module_wk
;
570 struct mutex ctrl_urb_lock
; /* protects urb_buf */
571 /* spinlock_t queue_lock; */
572 struct list_head inqueue
, outqueue
;
573 struct video_device
*vbi_dev
;
574 struct video_device
*radio_dev
;
576 /* resources in use */
577 unsigned int resources
;
579 unsigned char eedata
[256];
581 /* Isoc control struct */
582 struct em28xx_dmaqueue vidq
;
583 struct em28xx_dmaqueue vbiq
;
584 struct em28xx_usb_isoc_ctl isoc_ctl
;
588 struct usb_device
*udev
; /* the usb device */
589 int alt
; /* alternate */
590 int max_pkt_size
; /* max packet size of isoc transaction */
591 int num_alt
; /* Number of alternative settings */
592 unsigned int *alt_max_pkt_size
; /* array of wMaxPacketSize */
593 int dvb_alt
; /* alternate for DVB */
594 unsigned int dvb_max_pkt_size
; /* wMaxPacketSize for DVB */
595 char urb_buf
[URB_MAX_CTRL_SIZE
]; /* urb control msg buffer */
597 /* helper funcs that call usb_control_msg */
598 int (*em28xx_write_regs
) (struct em28xx
*dev
, u16 reg
,
600 int (*em28xx_read_reg
) (struct em28xx
*dev
, u16 reg
);
601 int (*em28xx_read_reg_req_len
) (struct em28xx
*dev
, u8 req
, u16 reg
,
603 int (*em28xx_write_regs_req
) (struct em28xx
*dev
, u8 req
, u16 reg
,
605 int (*em28xx_read_reg_req
) (struct em28xx
*dev
, u8 req
, u16 reg
);
607 enum em28xx_mode mode
;
609 /* register numbers for GPO/GPIO registers */
610 u16 reg_gpo_num
, reg_gpio_num
;
612 /* Caches GPO and GPIO registers */
613 unsigned char reg_gpo
, reg_gpio
;
615 /* Snapshot button */
616 char snapshot_button_path
[30]; /* path of the input dev */
617 struct input_dev
*sbutton_input_dev
;
618 struct delayed_work sbutton_query_work
;
620 struct em28xx_dvb
*dvb
;
622 /* I2C keyboard data */
623 struct IR_i2c_init_data init_data
;
627 struct list_head next
;
630 int (*init
)(struct em28xx
*);
631 int (*fini
)(struct em28xx
*);
634 /* Provided by em28xx-i2c.c */
635 void em28xx_do_i2c_scan(struct em28xx
*dev
);
636 int em28xx_i2c_register(struct em28xx
*dev
);
637 int em28xx_i2c_unregister(struct em28xx
*dev
);
639 /* Provided by em28xx-core.c */
641 u32
em28xx_request_buffers(struct em28xx
*dev
, u32 count
);
642 void em28xx_queue_unusedframes(struct em28xx
*dev
);
643 void em28xx_release_buffers(struct em28xx
*dev
);
645 int em28xx_read_reg_req_len(struct em28xx
*dev
, u8 req
, u16 reg
,
647 int em28xx_read_reg_req(struct em28xx
*dev
, u8 req
, u16 reg
);
648 int em28xx_read_reg(struct em28xx
*dev
, u16 reg
);
649 int em28xx_write_regs_req(struct em28xx
*dev
, u8 req
, u16 reg
, char *buf
,
651 int em28xx_write_regs(struct em28xx
*dev
, u16 reg
, char *buf
, int len
);
652 int em28xx_write_reg(struct em28xx
*dev
, u16 reg
, u8 val
);
653 int em28xx_write_reg_bits(struct em28xx
*dev
, u16 reg
, u8 val
,
656 int em28xx_read_ac97(struct em28xx
*dev
, u8 reg
);
657 int em28xx_write_ac97(struct em28xx
*dev
, u8 reg
, u16 val
);
659 int em28xx_audio_analog_set(struct em28xx
*dev
);
660 int em28xx_audio_setup(struct em28xx
*dev
);
662 int em28xx_colorlevels_set_default(struct em28xx
*dev
);
663 int em28xx_capture_start(struct em28xx
*dev
, int start
);
664 int em28xx_vbi_supported(struct em28xx
*dev
);
665 int em28xx_set_outfmt(struct em28xx
*dev
);
666 int em28xx_resolution_set(struct em28xx
*dev
);
667 int em28xx_set_alternate(struct em28xx
*dev
);
668 int em28xx_alloc_isoc(struct em28xx
*dev
, enum em28xx_mode mode
,
669 int max_packets
, int num_bufs
, int max_pkt_size
);
670 int em28xx_init_isoc(struct em28xx
*dev
, enum em28xx_mode mode
,
671 int max_packets
, int num_bufs
, int max_pkt_size
,
672 int (*isoc_copy
) (struct em28xx
*dev
, struct urb
*urb
));
673 void em28xx_uninit_isoc(struct em28xx
*dev
, enum em28xx_mode mode
);
674 void em28xx_stop_urbs(struct em28xx
*dev
);
675 int em28xx_isoc_dvb_max_packetsize(struct em28xx
*dev
);
676 int em28xx_set_mode(struct em28xx
*dev
, enum em28xx_mode set_mode
);
677 int em28xx_gpio_set(struct em28xx
*dev
, struct em28xx_reg_seq
*gpio
);
678 void em28xx_wake_i2c(struct em28xx
*dev
);
679 int em28xx_register_extension(struct em28xx_ops
*dev
);
680 void em28xx_unregister_extension(struct em28xx_ops
*dev
);
681 void em28xx_init_extension(struct em28xx
*dev
);
682 void em28xx_close_extension(struct em28xx
*dev
);
684 /* Provided by em28xx-video.c */
685 int em28xx_register_analog_devices(struct em28xx
*dev
);
686 void em28xx_release_analog_resources(struct em28xx
*dev
);
688 /* Provided by em28xx-cards.c */
689 extern int em2800_variant_detect(struct usb_device
*udev
, int model
);
690 extern struct em28xx_board em28xx_boards
[];
691 extern struct usb_device_id em28xx_id_table
[];
692 extern const unsigned int em28xx_bcount
;
693 int em28xx_tuner_callback(void *ptr
, int component
, int command
, int arg
);
694 void em28xx_release_resources(struct em28xx
*dev
);
696 /* Provided by em28xx-vbi.c */
697 extern struct videobuf_queue_ops em28xx_vbi_qops
;
701 #define em28xx_err(fmt, arg...) do {\
702 printk(KERN_ERR fmt , ##arg); } while (0)
704 #define em28xx_errdev(fmt, arg...) do {\
705 printk(KERN_ERR "%s: "fmt,\
706 dev->name , ##arg); } while (0)
708 #define em28xx_info(fmt, arg...) do {\
709 printk(KERN_INFO "%s: "fmt,\
710 dev->name , ##arg); } while (0)
711 #define em28xx_warn(fmt, arg...) do {\
712 printk(KERN_WARNING "%s: "fmt,\
713 dev->name , ##arg); } while (0)
715 static inline int em28xx_compression_disable(struct em28xx
*dev
)
717 /* side effect of disabling scaler and mixer */
718 return em28xx_write_reg(dev
, EM28XX_R26_COMPR
, 0x00);
721 static inline int em28xx_contrast_get(struct em28xx
*dev
)
723 return em28xx_read_reg(dev
, EM28XX_R20_YGAIN
) & 0x1f;
726 static inline int em28xx_brightness_get(struct em28xx
*dev
)
728 return em28xx_read_reg(dev
, EM28XX_R21_YOFFSET
);
731 static inline int em28xx_saturation_get(struct em28xx
*dev
)
733 return em28xx_read_reg(dev
, EM28XX_R22_UVGAIN
) & 0x1f;
736 static inline int em28xx_u_balance_get(struct em28xx
*dev
)
738 return em28xx_read_reg(dev
, EM28XX_R23_UOFFSET
);
741 static inline int em28xx_v_balance_get(struct em28xx
*dev
)
743 return em28xx_read_reg(dev
, EM28XX_R24_VOFFSET
);
746 static inline int em28xx_gamma_get(struct em28xx
*dev
)
748 return em28xx_read_reg(dev
, EM28XX_R14_GAMMA
) & 0x3f;
751 static inline int em28xx_contrast_set(struct em28xx
*dev
, s32 val
)
754 return em28xx_write_regs(dev
, EM28XX_R20_YGAIN
, &tmp
, 1);
757 static inline int em28xx_brightness_set(struct em28xx
*dev
, s32 val
)
760 return em28xx_write_regs(dev
, EM28XX_R21_YOFFSET
, &tmp
, 1);
763 static inline int em28xx_saturation_set(struct em28xx
*dev
, s32 val
)
766 return em28xx_write_regs(dev
, EM28XX_R22_UVGAIN
, &tmp
, 1);
769 static inline int em28xx_u_balance_set(struct em28xx
*dev
, s32 val
)
772 return em28xx_write_regs(dev
, EM28XX_R23_UOFFSET
, &tmp
, 1);
775 static inline int em28xx_v_balance_set(struct em28xx
*dev
, s32 val
)
778 return em28xx_write_regs(dev
, EM28XX_R24_VOFFSET
, &tmp
, 1);
781 static inline int em28xx_gamma_set(struct em28xx
*dev
, s32 val
)
784 return em28xx_write_regs(dev
, EM28XX_R14_GAMMA
, &tmp
, 1);
787 /*FIXME: maxw should be dependent of alt mode */
788 static inline unsigned int norm_maxw(struct em28xx
*dev
)
790 if (dev
->board
.is_webcam
)
791 return dev
->sensor_xres
;
793 if (dev
->board
.max_range_640_480
)
799 static inline unsigned int norm_maxh(struct em28xx
*dev
)
801 if (dev
->board
.is_webcam
)
802 return dev
->sensor_yres
;
804 if (dev
->board
.max_range_640_480
)
807 return (dev
->norm
& V4L2_STD_625_50
) ? 576 : 480;