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
132 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88
133 #define EM2874_BOARD_DELOCK_61959 89
134 #define EM2874_BOARD_KWORLD_UB435Q_V2 90
135 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91
136 #define EM28178_BOARD_PCTV_461E 92
138 /* Limits minimum and default number of buffers */
139 #define EM28XX_MIN_BUF 4
140 #define EM28XX_DEF_BUF 8
142 /*Limits the max URB message size */
143 #define URB_MAX_CTRL_SIZE 80
145 /* Params for validated field */
146 #define EM28XX_BOARD_NOT_VALIDATED 1
147 #define EM28XX_BOARD_VALIDATED 0
149 /* Params for em28xx_cmd() audio */
150 #define EM28XX_START_AUDIO 1
151 #define EM28XX_STOP_AUDIO 0
153 /* maximum number of em28xx boards */
154 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
156 /* maximum number of frames that can be queued */
157 #define EM28XX_NUM_FRAMES 5
158 /* number of frames that get used for v4l2_read() */
159 #define EM28XX_NUM_READ_FRAMES 2
161 /* number of buffers for isoc transfers */
162 #define EM28XX_NUM_BUFS 5
163 #define EM28XX_DVB_NUM_BUFS 5
165 /* max number of I2C buses on em28xx devices */
166 #define NUM_I2C_BUSES 2
168 /* isoc transfers: number of packets for each buffer
169 windows requests only 64 packets .. so we better do the same
170 this is what I found out for all alternate numbers there!
172 #define EM28XX_NUM_ISOC_PACKETS 64
173 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
175 /* bulk transfers: transfer buffer size = packet size * packet multiplier
176 USB 2.0 spec says bulk packet size is always 512 bytes
178 #define EM28XX_BULK_PACKET_MULTIPLIER 384
179 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384
181 #define EM28XX_INTERLACED_DEFAULT 1
183 /* time in msecs to wait for i2c writes to finish */
184 #define EM2800_I2C_XFER_TIMEOUT 20
186 /* max. number of button state polling addresses */
187 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5
198 struct em28xx_usb_bufs {
199 /* max packet size of isoc transaction */
202 /* number of packets in each buffer */
205 /* number of allocated urbs */
208 /* urb for isoc/bulk transfers */
211 /* transfer buffers for isoc/bulk transfer */
212 char **transfer_buffer;
215 struct em28xx_usb_ctl {
216 /* isoc/bulk transfer buffers for analog mode */
217 struct em28xx_usb_bufs analog_bufs;
219 /* isoc/bulk transfer buffers for digital mode */
220 struct em28xx_usb_bufs digital_bufs;
222 /* Stores already requested buffers */
223 struct em28xx_buffer *vid_buf;
224 struct em28xx_buffer *vbi_buf;
226 /* copy data from URB */
227 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb);
231 /* Struct to enumberate video formats */
234 u32 fourcc; /* v4l2 format id */
239 /* buffer for one video frame */
240 struct em28xx_buffer {
241 /* common v4l buffer stuff -- must be first */
242 struct vb2_buffer vb;
243 struct list_head list;
249 /* counter to control buffer fill */
251 /* NOTE; in interlaced mode, this value is reset to zero at
252 * the start of each new field (not frame !) */
254 /* pointer to vmalloc memory address in vb */
258 struct em28xx_dmaqueue {
259 struct list_head active;
261 wait_queue_head_t wq;
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,
377 enum em28xx_adecoder {
378 EM28XX_NOADECODER = 0,
382 enum em28xx_led_role {
383 EM28XX_LED_ANALOG_CAPTURING = 0,
384 EM28XX_LED_ILLUMINATION,
385 EM28XX_NUM_LED_ROLES, /* must be the last */
389 enum em28xx_led_role role;
395 enum em28xx_button_role {
396 EM28XX_BUTTON_SNAPSHOT = 0,
397 EM28XX_BUTTON_ILLUMINATION,
398 EM28XX_NUM_BUTTON_ROLES, /* must be the last */
401 struct em28xx_button {
402 enum em28xx_button_role role;
409 struct em28xx_board {
414 unsigned def_i2c_bus; /* Default I2C bus */
417 unsigned int tda9887_conf;
420 struct em28xx_reg_seq *dvb_gpio;
421 struct em28xx_reg_seq *suspend_gpio;
422 struct em28xx_reg_seq *tuner_gpio;
423 struct em28xx_reg_seq *mute_gpio;
425 unsigned int is_em2800:1;
426 unsigned int has_msp34xx:1;
427 unsigned int mts_firmware:1;
428 unsigned int max_range_640_480:1;
429 unsigned int has_dvb:1;
430 unsigned int is_webcam:1;
431 unsigned int valid:1;
432 unsigned int has_ir_i2c:1;
434 unsigned char xclk, i2c_speed;
435 unsigned char radio_addr;
436 unsigned short tvaudio_addr;
438 enum em28xx_decoder decoder;
439 enum em28xx_adecoder adecoder;
441 struct em28xx_input input[MAX_EM28XX_INPUT];
442 struct em28xx_input radio;
445 /* LEDs that need to be controlled explicitly */
446 struct em28xx_led *leds;
449 struct em28xx_button *buttons;
452 struct em28xx_eeprom {
453 u8 id[4]; /* 1a eb 67 95 */
461 __le16 string1, string2, string3;
466 #define EM28XX_AUDIO_BUFS 5
467 #define EM28XX_NUM_AUDIO_PACKETS 64
468 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
469 #define EM28XX_CAPTURE_STREAM_EN 1
471 /* em28xx extensions */
472 #define EM28XX_AUDIO 0x10
473 #define EM28XX_DVB 0x20
474 #define EM28XX_RC 0x30
476 /* em28xx resource types (used for res_get/res_lock etc */
477 #define EM28XX_RESOURCE_VIDEO 0x01
478 #define EM28XX_RESOURCE_VBI 0x02
480 struct em28xx_audio {
482 char *transfer_buffer[EM28XX_AUDIO_BUFS];
483 struct urb *urb[EM28XX_AUDIO_BUFS];
484 struct usb_device *udev;
485 unsigned int capture_transfer_done;
486 struct snd_pcm_substream *capture_pcm_substream;
488 unsigned int hwptr_done_capture;
489 struct snd_card *sndcard;
501 enum v4l2_buf_type type;
504 enum em28xx_i2c_algo_type {
505 EM28XX_I2C_ALGO_EM28XX = 0,
506 EM28XX_I2C_ALGO_EM2800,
507 EM28XX_I2C_ALGO_EM25XX_BUS_B,
510 struct em28xx_i2c_bus {
514 enum em28xx_i2c_algo_type algo_type;
518 /* main device struct */
520 /* generic device properties */
521 char name[30]; /* name (including minor) of the device */
522 int model; /* index in the device_data struct */
523 int devno; /* marks the number of this device */
524 enum em28xx_chip_id chip_id;
525 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */
527 unsigned char disconnected:1; /* device has been diconnected */
531 struct v4l2_device v4l2_dev;
532 struct v4l2_ctrl_handler ctrl_handler;
533 struct v4l2_clk *clk;
534 struct em28xx_board board;
536 /* Webcam specific fields */
537 enum em28xx_sensor em28xx_sensor;
538 int sensor_xres, sensor_yres;
541 /* Progressive (non-interlaced) mode */
544 /* Vinmode/Vinctl used at the driver */
547 unsigned int has_audio_class:1;
548 unsigned int has_alsa_audio:1;
549 unsigned int is_audio_only:1;
551 /* Controls audio streaming */
552 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */
553 atomic_t stream_started; /* stream should be running if true */
555 struct em28xx_fmt *format;
557 struct em28xx_IR *ir;
559 /* Some older em28xx chips needs a waiting time after writing */
560 unsigned int wait_after_write;
562 struct list_head devlist;
564 u32 i2s_speed; /* I2S speed for audio digital stream */
566 struct em28xx_audio_mode audio_mode;
568 int tuner_type; /* type of the tuner */
569 int tuner_addr; /* tuner address */
573 struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
574 struct i2c_client i2c_client[NUM_I2C_BUSES];
575 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
577 unsigned char eeprom_addrwidth_16bit:1;
578 unsigned def_i2c_bus; /* Default I2C bus */
579 unsigned cur_i2c_bus; /* Current I2C bus */
580 struct rt_mutex i2c_bus_lock;
582 /* video for linux */
583 int users; /* user count for exclusive use */
584 int streaming_users; /* Number of actively streaming users */
585 struct video_device *vdev; /* video for linux device struct */
586 v4l2_std_id norm; /* selected tv norm */
587 int ctl_freq; /* selected frequency */
588 unsigned int ctl_input; /* selected input */
589 unsigned int ctl_ainput;/* selected audio input */
590 unsigned int ctl_aoutput;/* selected audio output */
593 /* frame properties */
594 int width; /* current frame width */
595 int height; /* current frame height */
596 unsigned hscale; /* horizontal scale factor (see datasheet) */
597 unsigned vscale; /* vertical scale factor (see datasheet) */
598 int interlaced; /* 1=interlace fileds, 0=just top fileds */
599 unsigned int video_bytesread; /* Number of bytes read */
601 unsigned long hash; /* eeprom hash - for boards with generic ID */
602 unsigned long i2c_hash; /* i2c devicelist hash -
603 for boards with generic ID */
605 struct em28xx_audio adev;
607 /* capture state tracking */
609 unsigned char top_field:1;
611 unsigned int vbi_width;
612 unsigned int vbi_height; /* lines per field */
614 struct work_struct request_module_wk;
618 struct mutex ctrl_urb_lock; /* protects urb_buf */
619 /* spinlock_t queue_lock; */
620 struct list_head inqueue, outqueue;
621 struct video_device *vbi_dev;
622 struct video_device *radio_dev;
625 struct vb2_queue vb_vidq;
626 struct vb2_queue vb_vbiq;
627 struct mutex vb_queue_lock;
628 struct mutex vb_vbi_queue_lock;
630 /* resources in use */
631 unsigned int resources;
637 /* Isoc control struct */
638 struct em28xx_dmaqueue vidq;
639 struct em28xx_dmaqueue vbiq;
640 struct em28xx_usb_ctl usb_ctl;
643 unsigned int field_count;
644 unsigned int vbi_field_count;
647 struct usb_device *udev; /* the usb device */
648 u8 analog_ep_isoc; /* address of isoc endpoint for analog */
649 u8 analog_ep_bulk; /* address of bulk endpoint for analog */
650 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */
651 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */
652 int alt; /* alternate setting */
653 int max_pkt_size; /* max packet size of the selected ep at alt */
654 int packet_multiplier; /* multiplier for wMaxPacketSize, used for
655 URB buffer size definition */
656 int num_alt; /* number of alternative settings */
657 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */
658 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc
659 transfers for analog */
660 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */
661 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the
662 selected DVB ep at dvb_alt */
663 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc
665 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
667 /* helper funcs that call usb_control_msg */
668 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
670 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
671 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
673 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
675 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
677 enum em28xx_mode mode;
679 /* Button state polling */
680 struct delayed_work buttons_query_work;
681 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
682 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
683 u8 num_button_polling_addresses;
684 /* Snapshot button input device */
685 char snapshot_button_path[30]; /* path of the input dev */
686 struct input_dev *sbutton_input_dev;
688 struct em28xx_dvb *dvb;
692 struct list_head next;
695 int (*init)(struct em28xx *);
696 int (*fini)(struct em28xx *);
699 /* Provided by em28xx-i2c.c */
700 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus);
701 int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
702 enum em28xx_i2c_algo_type algo_type);
703 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus);
705 /* Provided by em28xx-core.c */
706 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
708 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
709 int em28xx_read_reg(struct em28xx *dev, u16 reg);
710 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
712 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
713 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
714 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
716 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
718 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
719 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
721 int em28xx_audio_analog_set(struct em28xx *dev);
722 int em28xx_audio_setup(struct em28xx *dev);
724 int em28xx_colorlevels_set_default(struct em28xx *dev);
725 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
726 enum em28xx_led_role role);
727 int em28xx_capture_start(struct em28xx *dev, int start);
728 int em28xx_vbi_supported(struct em28xx *dev);
729 int em28xx_set_outfmt(struct em28xx *dev);
730 int em28xx_resolution_set(struct em28xx *dev);
731 int em28xx_set_alternate(struct em28xx *dev);
732 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
733 int num_bufs, int max_pkt_size, int packet_multiplier);
734 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
736 int num_bufs, int max_pkt_size, int packet_multiplier,
738 (struct em28xx *dev, struct urb *urb));
739 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
740 void em28xx_stop_urbs(struct em28xx *dev);
741 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
742 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
743 void em28xx_wake_i2c(struct em28xx *dev);
744 int em28xx_register_extension(struct em28xx_ops *dev);
745 void em28xx_unregister_extension(struct em28xx_ops *dev);
746 void em28xx_init_extension(struct em28xx *dev);
747 void em28xx_close_extension(struct em28xx *dev);
749 /* Provided by em28xx-video.c */
750 int em28xx_vb2_setup(struct em28xx *dev);
751 int em28xx_register_analog_devices(struct em28xx *dev);
752 void em28xx_release_analog_resources(struct em28xx *dev);
753 void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv);
754 int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
755 int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
756 extern const struct v4l2_ctrl_ops em28xx_ctrl_ops;
758 /* Provided by em28xx-cards.c */
759 extern struct em28xx_board em28xx_boards[];
760 extern struct usb_device_id em28xx_id_table[];
761 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
762 void em28xx_release_resources(struct em28xx *dev);
764 /* Provided by em28xx-vbi.c */
765 extern struct vb2_ops em28xx_vbi_qops;
767 /* Provided by em28xx-camera.c */
768 int em28xx_detect_sensor(struct em28xx *dev);
769 int em28xx_init_camera(struct em28xx *dev);
773 #define em28xx_err(fmt, arg...) do {\
774 printk(KERN_ERR fmt , ##arg); } while (0)
776 #define em28xx_errdev(fmt, arg...) do {\
777 printk(KERN_ERR "%s: "fmt,\
778 dev->name , ##arg); } while (0)
780 #define em28xx_info(fmt, arg...) do {\
781 printk(KERN_INFO "%s: "fmt,\
782 dev->name , ##arg); } while (0)
783 #define em28xx_warn(fmt, arg...) do {\
784 printk(KERN_WARNING "%s: "fmt,\
785 dev->name , ##arg); } while (0)
787 static inline int em28xx_compression_disable(struct em28xx *dev)
789 /* side effect of disabling scaler and mixer */
790 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
793 /*FIXME: maxw should be dependent of alt mode */
794 static inline unsigned int norm_maxw(struct em28xx *dev)
796 if (dev->board.is_webcam)
797 return dev->sensor_xres;
799 if (dev->board.max_range_640_480)
805 static inline unsigned int norm_maxh(struct em28xx *dev)
807 if (dev->board.is_webcam)
808 return dev->sensor_yres;
810 if (dev->board.max_range_640_480)
813 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;