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>
7 Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
9 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/workqueue.h>
30 #include <linux/i2c.h>
31 #include <linux/mutex.h>
32 #include <linux/videodev2.h>
34 #include <media/videobuf2-vmalloc.h>
35 #include <media/v4l2-device.h>
36 #include <media/v4l2-ctrls.h>
37 #include <media/v4l2-fh.h>
38 #include <media/ir-kbd-i2c.h>
39 #include <media/rc-core.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
131 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87
133 /* Limits minimum and default number of buffers */
134 #define EM28XX_MIN_BUF 4
135 #define EM28XX_DEF_BUF 8
137 /*Limits the max URB message size */
138 #define URB_MAX_CTRL_SIZE 80
140 /* Params for validated field */
141 #define EM28XX_BOARD_NOT_VALIDATED 1
142 #define EM28XX_BOARD_VALIDATED 0
144 /* Params for em28xx_cmd() audio */
145 #define EM28XX_START_AUDIO 1
146 #define EM28XX_STOP_AUDIO 0
148 /* maximum number of em28xx boards */
149 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
151 /* maximum number of frames that can be queued */
152 #define EM28XX_NUM_FRAMES 5
153 /* number of frames that get used for v4l2_read() */
154 #define EM28XX_NUM_READ_FRAMES 2
156 /* number of buffers for isoc transfers */
157 #define EM28XX_NUM_BUFS 5
158 #define EM28XX_DVB_NUM_BUFS 5
160 /* isoc transfers: number of packets for each buffer
161 windows requests only 64 packets .. so we better do the same
162 this is what I found out for all alternate numbers there!
164 #define EM28XX_NUM_ISOC_PACKETS 64
165 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
167 /* bulk transfers: transfer buffer size = packet size * packet multiplier
168 USB 2.0 spec says bulk packet size is always 512 bytes
170 #define EM28XX_BULK_PACKET_MULTIPLIER 384
171 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384
173 #define EM28XX_INTERLACED_DEFAULT 1
176 #define (use usbview if you want to get the other alternate number infos)
178 #define alternate number 2
179 #define Endpoint Address: 82
183 Max Packet Size: 1448
192 Max Packet Size: 3072
196 /* time in msecs to wait for i2c writes to finish */
197 #define EM2800_I2C_XFER_TIMEOUT 20
208 struct em28xx_usb_bufs {
209 /* max packet size of isoc transaction */
212 /* number of packets in each buffer */
215 /* number of allocated urbs */
218 /* urb for isoc/bulk transfers */
221 /* transfer buffers for isoc/bulk transfer */
222 char **transfer_buffer;
225 struct em28xx_usb_ctl {
226 /* isoc/bulk transfer buffers for analog mode */
227 struct em28xx_usb_bufs analog_bufs;
229 /* isoc/bulk transfer buffers for digital mode */
230 struct em28xx_usb_bufs digital_bufs;
232 /* Stores already requested buffers */
233 struct em28xx_buffer *vid_buf;
234 struct em28xx_buffer *vbi_buf;
236 /* copy data from URB */
237 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb);
241 /* Struct to enumberate video formats */
244 u32 fourcc; /* v4l2 format id */
249 /* buffer for one video frame */
250 struct em28xx_buffer {
251 /* common v4l buffer stuff -- must be first */
252 struct vb2_buffer vb;
253 struct list_head list;
259 /* counter to control buffer fill */
261 /* NOTE; in interlaced mode, this value is reset to zero at
262 * the start of each new field (not frame !) */
264 /* pointer to vmalloc memory address in vb */
268 struct em28xx_dmaqueue {
269 struct list_head active;
271 wait_queue_head_t wq;
276 #define MAX_EM28XX_INPUT 4
277 enum enum28xx_itype {
278 EM28XX_VMUX_COMPOSITE1 = 1,
279 EM28XX_VMUX_COMPOSITE2,
280 EM28XX_VMUX_COMPOSITE3,
281 EM28XX_VMUX_COMPOSITE4,
283 EM28XX_VMUX_TELEVISION,
290 enum em28xx_ac97_mode {
293 EM28XX_AC97_SIGMATEL,
297 struct em28xx_audio_mode {
298 enum em28xx_ac97_mode ac97;
303 unsigned int has_audio:1;
305 unsigned int i2s_3rates:1;
306 unsigned int i2s_5rates:1;
309 /* em28xx has two audio inputs: tuner and line in.
310 However, on most devices, an auxiliary AC97 codec device is used.
311 The AC97 device may have several different inputs and outputs,
312 depending on their model. So, it is possible to use AC97 mixer to
313 address more than two different entries.
316 /* This is the only entry for em28xx tuner input */
317 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */
319 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */
321 /* Some less-common mixer setups */
322 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */
332 EM28XX_AOUT_MASTER = 1 << 0,
333 EM28XX_AOUT_LINE = 1 << 1,
334 EM28XX_AOUT_MONO = 1 << 2,
335 EM28XX_AOUT_LFE = 1 << 3,
336 EM28XX_AOUT_SURR = 1 << 4,
338 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
339 EM28XX_AOUT_PCM_IN = 1 << 7,
341 /* Bits 10-8 are used to indicate the PCM IN record select */
342 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
343 EM28XX_AOUT_PCM_CD = 1 << 8,
344 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
345 EM28XX_AOUT_PCM_AUX = 3 << 8,
346 EM28XX_AOUT_PCM_LINE = 4 << 8,
347 EM28XX_AOUT_PCM_STEREO = 5 << 8,
348 EM28XX_AOUT_PCM_MONO = 6 << 8,
349 EM28XX_AOUT_PCM_PHONE = 7 << 8,
352 static inline int ac97_return_record_select(int a_out)
354 return (a_out & 0x700) >> 8;
357 struct em28xx_reg_seq {
359 unsigned char val, mask;
363 struct em28xx_input {
364 enum enum28xx_itype type;
366 enum em28xx_amux amux;
367 enum em28xx_aout aout;
368 struct em28xx_reg_seq *gpio;
371 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
373 enum em28xx_decoder {
374 EM28XX_NODECODER = 0,
386 enum em28xx_adecoder {
387 EM28XX_NOADECODER = 0,
391 struct em28xx_board {
398 unsigned int tda9887_conf;
401 struct em28xx_reg_seq *dvb_gpio;
402 struct em28xx_reg_seq *suspend_gpio;
403 struct em28xx_reg_seq *tuner_gpio;
404 struct em28xx_reg_seq *mute_gpio;
406 unsigned int is_em2800:1;
407 unsigned int has_msp34xx:1;
408 unsigned int mts_firmware:1;
409 unsigned int max_range_640_480:1;
410 unsigned int has_dvb:1;
411 unsigned int has_snapshot_button:1;
412 unsigned int is_webcam:1;
413 unsigned int valid:1;
414 unsigned int has_ir_i2c:1;
416 unsigned char xclk, i2c_speed;
417 unsigned char radio_addr;
418 unsigned short tvaudio_addr;
420 enum em28xx_decoder decoder;
421 enum em28xx_adecoder adecoder;
423 struct em28xx_input input[MAX_EM28XX_INPUT];
424 struct em28xx_input radio;
428 struct em28xx_eeprom {
429 u32 id; /* 0x9567eb1a */
437 u16 string1, string2, string3;
442 #define EM28XX_AUDIO_BUFS 5
443 #define EM28XX_NUM_AUDIO_PACKETS 64
444 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
445 #define EM28XX_CAPTURE_STREAM_EN 1
447 /* em28xx extensions */
448 #define EM28XX_AUDIO 0x10
449 #define EM28XX_DVB 0x20
450 #define EM28XX_RC 0x30
452 /* em28xx resource types (used for res_get/res_lock etc */
453 #define EM28XX_RESOURCE_VIDEO 0x01
454 #define EM28XX_RESOURCE_VBI 0x02
456 struct em28xx_audio {
458 char *transfer_buffer[EM28XX_AUDIO_BUFS];
459 struct urb *urb[EM28XX_AUDIO_BUFS];
460 struct usb_device *udev;
461 unsigned int capture_transfer_done;
462 struct snd_pcm_substream *capture_pcm_substream;
464 unsigned int hwptr_done_capture;
465 struct snd_card *sndcard;
477 enum v4l2_buf_type type;
480 /* main device struct */
482 /* generic device properties */
483 char name[30]; /* name (including minor) of the device */
484 int model; /* index in the device_data struct */
485 int devno; /* marks the number of this device */
486 enum em28xx_chip_id chip_id;
488 unsigned char disconnected:1; /* device has been diconnected */
492 struct v4l2_device v4l2_dev;
493 struct v4l2_ctrl_handler ctrl_handler;
494 /* provides ac97 mute and volume overrides */
495 struct v4l2_ctrl_handler ac97_ctrl_handler;
496 struct em28xx_board board;
498 /* Webcam specific fields */
499 enum em28xx_sensor em28xx_sensor;
500 int sensor_xres, sensor_yres;
503 /* Progressive (non-interlaced) mode */
506 /* Vinmode/Vinctl used at the driver */
509 unsigned int has_audio_class:1;
510 unsigned int has_alsa_audio:1;
511 unsigned int is_audio_only:1;
513 /* Controls audio streaming */
514 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */
515 atomic_t stream_started; /* stream should be running if true */
517 struct em28xx_fmt *format;
519 struct em28xx_IR *ir;
521 /* Some older em28xx chips needs a waiting time after writing */
522 unsigned int wait_after_write;
524 struct list_head devlist;
526 u32 i2s_speed; /* I2S speed for audio digital stream */
528 struct em28xx_audio_mode audio_mode;
530 int tuner_type; /* type of the tuner */
531 int tuner_addr; /* tuner address */
534 struct i2c_adapter i2c_adap;
535 struct i2c_client i2c_client;
536 /* video for linux */
537 int users; /* user count for exclusive use */
538 int streaming_users; /* Number of actively streaming users */
539 struct video_device *vdev; /* video for linux device struct */
540 v4l2_std_id norm; /* selected tv norm */
541 int ctl_freq; /* selected frequency */
542 unsigned int ctl_input; /* selected input */
543 unsigned int ctl_ainput;/* selected audio input */
544 unsigned int ctl_aoutput;/* selected audio output */
547 /* frame properties */
548 int width; /* current frame width */
549 int height; /* current frame height */
550 unsigned hscale; /* horizontal scale factor (see datasheet) */
551 unsigned vscale; /* vertical scale factor (see datasheet) */
552 int interlaced; /* 1=interlace fileds, 0=just top fileds */
553 unsigned int video_bytesread; /* Number of bytes read */
555 unsigned long hash; /* eeprom hash - for boards with generic ID */
556 unsigned long i2c_hash; /* i2c devicelist hash -
557 for boards with generic ID */
559 struct em28xx_audio adev;
561 /* capture state tracking */
563 unsigned char top_field:1;
565 unsigned int vbi_width;
566 unsigned int vbi_height; /* lines per field */
568 struct work_struct request_module_wk;
572 struct mutex ctrl_urb_lock; /* protects urb_buf */
573 /* spinlock_t queue_lock; */
574 struct list_head inqueue, outqueue;
575 struct video_device *vbi_dev;
576 struct video_device *radio_dev;
579 struct vb2_queue vb_vidq;
580 struct vb2_queue vb_vbiq;
581 struct mutex vb_queue_lock;
582 struct mutex vb_vbi_queue_lock;
584 /* resources in use */
585 unsigned int resources;
587 unsigned char eedata[256];
589 /* Isoc control struct */
590 struct em28xx_dmaqueue vidq;
591 struct em28xx_dmaqueue vbiq;
592 struct em28xx_usb_ctl usb_ctl;
595 unsigned int field_count;
596 unsigned int vbi_field_count;
599 struct usb_device *udev; /* the usb device */
600 u8 analog_ep_isoc; /* address of isoc endpoint for analog */
601 u8 analog_ep_bulk; /* address of bulk endpoint for analog */
602 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */
603 u8 dvb_ep_bulk; /* address of bulk endpoint for DVC */
604 int alt; /* alternate setting */
605 int max_pkt_size; /* max packet size of the selected ep at alt */
606 int packet_multiplier; /* multiplier for wMaxPacketSize, used for
607 URB buffer size definition */
608 int num_alt; /* number of alternative settings */
609 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */
610 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc
611 transfers for analog */
612 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */
613 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the
614 selected DVB ep at dvb_alt */
615 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc
617 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
619 /* helper funcs that call usb_control_msg */
620 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
622 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
623 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
625 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
627 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
629 enum em28xx_mode mode;
631 /* register numbers for GPO/GPIO registers */
632 u16 reg_gpo_num, reg_gpio_num;
634 /* Caches GPO and GPIO registers */
635 unsigned char reg_gpo, reg_gpio;
637 /* Snapshot button */
638 char snapshot_button_path[30]; /* path of the input dev */
639 struct input_dev *sbutton_input_dev;
640 struct delayed_work sbutton_query_work;
642 struct em28xx_dvb *dvb;
646 struct list_head next;
649 int (*init)(struct em28xx *);
650 int (*fini)(struct em28xx *);
653 /* Provided by em28xx-i2c.c */
654 void em28xx_do_i2c_scan(struct em28xx *dev);
655 int em28xx_i2c_register(struct em28xx *dev);
656 int em28xx_i2c_unregister(struct em28xx *dev);
658 /* Provided by em28xx-core.c */
660 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
661 void em28xx_queue_unusedframes(struct em28xx *dev);
662 void em28xx_release_buffers(struct em28xx *dev);
664 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
666 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
667 int em28xx_read_reg(struct em28xx *dev, u16 reg);
668 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
670 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
671 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
672 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
675 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
676 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
678 int em28xx_audio_analog_set(struct em28xx *dev);
679 int em28xx_audio_setup(struct em28xx *dev);
681 int em28xx_colorlevels_set_default(struct em28xx *dev);
682 int em28xx_capture_start(struct em28xx *dev, int start);
683 int em28xx_vbi_supported(struct em28xx *dev);
684 int em28xx_set_outfmt(struct em28xx *dev);
685 int em28xx_resolution_set(struct em28xx *dev);
686 int em28xx_set_alternate(struct em28xx *dev);
687 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
688 int num_bufs, int max_pkt_size, int packet_multiplier);
689 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
691 int num_bufs, int max_pkt_size, int packet_multiplier,
693 (struct em28xx *dev, struct urb *urb));
694 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
695 void em28xx_stop_urbs(struct em28xx *dev);
696 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
697 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
698 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
699 void em28xx_wake_i2c(struct em28xx *dev);
700 int em28xx_register_extension(struct em28xx_ops *dev);
701 void em28xx_unregister_extension(struct em28xx_ops *dev);
702 void em28xx_init_extension(struct em28xx *dev);
703 void em28xx_close_extension(struct em28xx *dev);
705 /* Provided by em28xx-video.c */
706 int em28xx_vb2_setup(struct em28xx *dev);
707 int em28xx_register_analog_devices(struct em28xx *dev);
708 void em28xx_release_analog_resources(struct em28xx *dev);
709 void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv);
710 int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
711 int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
712 extern const struct v4l2_ctrl_ops em28xx_ctrl_ops;
714 /* Provided by em28xx-cards.c */
715 extern int em2800_variant_detect(struct usb_device *udev, int model);
716 extern struct em28xx_board em28xx_boards[];
717 extern struct usb_device_id em28xx_id_table[];
718 extern const unsigned int em28xx_bcount;
719 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
720 void em28xx_release_resources(struct em28xx *dev);
722 /* Provided by em28xx-vbi.c */
723 extern struct vb2_ops em28xx_vbi_qops;
727 #define em28xx_err(fmt, arg...) do {\
728 printk(KERN_ERR fmt , ##arg); } while (0)
730 #define em28xx_errdev(fmt, arg...) do {\
731 printk(KERN_ERR "%s: "fmt,\
732 dev->name , ##arg); } while (0)
734 #define em28xx_info(fmt, arg...) do {\
735 printk(KERN_INFO "%s: "fmt,\
736 dev->name , ##arg); } while (0)
737 #define em28xx_warn(fmt, arg...) do {\
738 printk(KERN_WARNING "%s: "fmt,\
739 dev->name , ##arg); } while (0)
741 static inline int em28xx_compression_disable(struct em28xx *dev)
743 /* side effect of disabling scaler and mixer */
744 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
747 static inline int em28xx_contrast_get(struct em28xx *dev)
749 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
752 static inline int em28xx_brightness_get(struct em28xx *dev)
754 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
757 static inline int em28xx_saturation_get(struct em28xx *dev)
759 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
762 static inline int em28xx_u_balance_get(struct em28xx *dev)
764 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
767 static inline int em28xx_v_balance_get(struct em28xx *dev)
769 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
772 static inline int em28xx_gamma_get(struct em28xx *dev)
774 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
777 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
780 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
783 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
786 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
789 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
792 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
795 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
798 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
801 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
804 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
807 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
810 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
813 /*FIXME: maxw should be dependent of alt mode */
814 static inline unsigned int norm_maxw(struct em28xx *dev)
816 if (dev->board.is_webcam)
817 return dev->sensor_xres;
819 if (dev->board.max_range_640_480)
825 static inline unsigned int norm_maxh(struct em28xx *dev)
827 if (dev->board.is_webcam)
828 return dev->sensor_yres;
830 if (dev->board.max_range_640_480)
833 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;