1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
5 * Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
6 * Ludovico Cavedon <cavedon@sssup.it>
7 * Mauro Carvalho Chehab <mchehab@infradead.org>
8 * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
10 * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
26 #include <linux/bitfield.h>
28 #define EM28XX_VERSION "0.2.2"
29 #define DRIVER_DESC "Empia em28xx device driver"
31 #include <linux/workqueue.h>
32 #include <linux/i2c.h>
33 #include <linux/mutex.h>
34 #include <linux/kref.h>
35 #include <linux/videodev2.h>
37 #include <media/videobuf2-v4l2.h>
38 #include <media/videobuf2-vmalloc.h>
39 #include <media/v4l2-device.h>
40 #include <media/v4l2-ctrls.h>
41 #include <media/v4l2-fh.h>
42 #include <media/i2c/ir-kbd-i2c.h>
43 #include <media/rc-core.h>
44 #include "tuner-xc2028.h"
46 #include "em28xx-reg.h"
48 /* Boards supported by driver */
49 #define EM2800_BOARD_UNKNOWN 0
50 #define EM2820_BOARD_UNKNOWN 1
51 #define EM2820_BOARD_TERRATEC_CINERGY_250 2
52 #define EM2820_BOARD_PINNACLE_USB_2 3
53 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
54 #define EM2820_BOARD_MSI_VOX_USB_2 5
55 #define EM2800_BOARD_TERRATEC_CINERGY_200 6
56 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
57 #define EM2800_BOARD_KWORLD_USB2800 8
58 #define EM2820_BOARD_PINNACLE_DVC_90 9
59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
60 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11
61 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12
62 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
63 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
64 #define EM2800_BOARD_VGEAR_POCKETTV 15
65 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
66 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
67 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
68 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19
69 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
70 #define EM2800_BOARD_GRABBEEX_USB2800 21
71 #define EM2750_BOARD_UNKNOWN 22
72 #define EM2750_BOARD_DLCW_130 23
73 #define EM2820_BOARD_DLINK_USB_TV 24
74 #define EM2820_BOARD_GADMEI_UTV310 25
75 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
76 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
77 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
78 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29
79 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
80 #define EM2821_BOARD_USBGEAR_VD204 31
81 #define EM2821_BOARD_SUPERCOMP_USB_2 32
82 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33
83 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34
84 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35
85 #define EM2860_BOARD_NETGMBH_CAM 36
86 #define EM2860_BOARD_GADMEI_UTV330 37
87 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
88 #define EM2861_BOARD_KWORLD_PVRTV_300U 39
89 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40
90 #define EM2870_BOARD_KWORLD_350U 41
91 #define EM2870_BOARD_KWORLD_355U 42
92 #define EM2870_BOARD_TERRATEC_XS 43
93 #define EM2870_BOARD_TERRATEC_XS_MT2060 44
94 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45
95 #define EM2870_BOARD_COMPRO_VIDEOMATE 46
96 #define EM2880_BOARD_KWORLD_DVB_305U 47
97 #define EM2880_BOARD_KWORLD_DVB_310U 48
98 #define EM2880_BOARD_MSI_DIGIVOX_AD 49
99 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
100 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
101 #define EM2881_BOARD_DNT_DA2_HYBRID 52
102 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
103 #define EM2882_BOARD_KWORLD_VS_DVBT 54
104 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55
105 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56
106 #define EM2883_BOARD_KWORLD_HYBRID_330U 57
107 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
108 #define EM2874_BOARD_PCTV_HD_MINI_80E 59
109 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60
110 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61
111 #define EM2820_BOARD_GADMEI_TVR200 62
112 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63
113 #define EM2860_BOARD_EASYCAP 64
114 #define EM2820_BOARD_IODATA_GVMVP_SZ 65
115 #define EM2880_BOARD_EMPIRE_DUAL_TV 66
116 #define EM2860_BOARD_TERRATEC_GRABBY 67
117 #define EM2860_BOARD_TERRATEC_AV350 68
118 #define EM2882_BOARD_KWORLD_ATSC_315U 69
119 #define EM2882_BOARD_EVGA_INDTUBE 70
120 #define EM2820_BOARD_SILVERCREST_WEBCAM 71
121 #define EM2861_BOARD_GADMEI_UTV330PLUS 72
122 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
123 #define EM2800_BOARD_VC211A 74
124 #define EM2882_BOARD_DIKOM_DK300 75
125 #define EM2870_BOARD_KWORLD_A340 76
126 #define EM2874_BOARD_LEADERSHIP_ISDBT 77
127 #define EM28174_BOARD_PCTV_290E 78
128 #define EM2884_BOARD_TERRATEC_H5 79
129 #define EM28174_BOARD_PCTV_460E 80
130 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
131 #define EM2884_BOARD_CINERGY_HTC_STICK 82
132 #define EM2860_BOARD_HT_VIDBOX_NW03 83
133 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84
134 #define EM2884_BOARD_PCTV_510E 85
135 #define EM2884_BOARD_PCTV_520E 86
136 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87
137 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88
138 #define EM2874_BOARD_DELOCK_61959 89
139 #define EM2874_BOARD_KWORLD_UB435Q_V2 90
140 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91
141 #define EM28178_BOARD_PCTV_461E 92
142 #define EM2874_BOARD_KWORLD_UB435Q_V3 93
143 #define EM28178_BOARD_PCTV_292E 94
144 #define EM2861_BOARD_LEADTEK_VC100 95
145 #define EM28178_BOARD_TERRATEC_T2_STICK_HD 96
146 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97
147 #define EM28178_BOARD_PLEX_PX_BCUD 98
148 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99
149 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100
150 #define EM2884_BOARD_TERRATEC_H6 101
152 /* Limits minimum and default number of buffers */
153 #define EM28XX_MIN_BUF 4
154 #define EM28XX_DEF_BUF 8
156 /*Limits the max URB message size */
157 #define URB_MAX_CTRL_SIZE 80
159 /* Params for validated field */
160 #define EM28XX_BOARD_NOT_VALIDATED 1
161 #define EM28XX_BOARD_VALIDATED 0
163 /* Params for em28xx_cmd() audio */
164 #define EM28XX_START_AUDIO 1
165 #define EM28XX_STOP_AUDIO 0
167 /* maximum number of em28xx boards */
168 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */
170 /* maximum number of frames that can be queued */
171 #define EM28XX_NUM_FRAMES 5
172 /* number of frames that get used for v4l2_read() */
173 #define EM28XX_NUM_READ_FRAMES 2
175 /* number of buffers for isoc transfers */
176 #define EM28XX_NUM_BUFS 5
177 #define EM28XX_DVB_NUM_BUFS 5
179 /* max number of I2C buses on em28xx devices */
180 #define NUM_I2C_BUSES 2
183 * isoc transfers: number of packets for each buffer
184 * windows requests only 64 packets .. so we better do the same
185 * this is what I found out for all alternate numbers there!
187 #define EM28XX_NUM_ISOC_PACKETS 64
188 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
191 * bulk transfers: transfer buffer size = packet size * packet multiplier
192 * USB 2.0 spec says bulk packet size is always 512 bytes
194 #define EM28XX_BULK_PACKET_MULTIPLIER 384
195 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94
197 #define EM28XX_INTERLACED_DEFAULT 1
199 /* time in msecs to wait for AC97 xfers to finish */
200 #define EM28XX_AC97_XFER_TIMEOUT 100
202 /* max. number of button state polling addresses */
203 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5
206 #define SECONDARY_TS 1
217 * struct em28xx_usb_bufs - Contains URB-related buffer data
219 * @max_pkt_size: max packet size of isoc transaction
220 * @num_packets: number of packets in each buffer
221 * @num_bufs: number of allocated urb
222 * @urb: urb for isoc/bulk transfers
223 * @buf: transfer buffers for isoc/bulk transfer
225 struct em28xx_usb_bufs {
234 * struct em28xx_usb_ctl - Contains URB-related buffer data
236 * @analog_bufs: isoc/bulk transfer buffers for analog mode
237 * @digital_bufs: isoc/bulk transfer buffers for digital mode
238 * @vid_buf: Stores already requested video buffers
239 * @vbi_buf: Stores already requested VBI buffers
240 * @urb_data_copy: copy data from URB
242 struct em28xx_usb_ctl {
243 struct em28xx_usb_bufs analog_bufs;
244 struct em28xx_usb_bufs digital_bufs;
245 struct em28xx_buffer *vid_buf;
246 struct em28xx_buffer *vbi_buf;
247 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
251 * struct em28xx_fmt - Struct to enumberate video formats
253 * @name: Name for the video standard
254 * @fourcc: v4l2 format id
255 * @depth: mean number of bits to represent a pixel
256 * @reg: em28xx register value to set it
266 * struct em28xx_buffer- buffer for storing one video frame
268 * @vb: common v4l buffer stuff
269 * @list: List to associate it with the other buffers
270 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr()
271 * @length: length of the buffer, as returned by vb2_plane_size()
272 * @top_field: If non-zero, indicate that the buffer is the top field
273 * @pos: Indicate the next position of the buffer to be filled.
274 * @vb_buf: pointer to vmalloc memory address in vb
278 * in interlaced mode, @pos is reset to zero at the start of each new
279 * field (not frame !)
281 struct em28xx_buffer {
282 struct vb2_v4l2_buffer vb; /* must be first */
284 struct list_head list;
295 struct em28xx_dmaqueue {
296 struct list_head active;
298 wait_queue_head_t wq;
303 #define MAX_EM28XX_INPUT 4
304 enum enum28xx_itype {
305 EM28XX_VMUX_COMPOSITE = 1,
307 EM28XX_VMUX_TELEVISION,
311 enum em28xx_ac97_mode {
314 EM28XX_AC97_SIGMATEL,
318 struct em28xx_audio_mode {
319 enum em28xx_ac97_mode ac97;
322 enum em28xx_int_audio_type {
323 EM28XX_INT_AUDIO_NONE = 0,
324 EM28XX_INT_AUDIO_AC97,
325 EM28XX_INT_AUDIO_I2S,
328 enum em28xx_usb_audio_type {
329 EM28XX_USB_AUDIO_NONE = 0,
330 EM28XX_USB_AUDIO_CLASS,
331 EM28XX_USB_AUDIO_VENDOR,
335 * em28xx_amux - describes the type of audio input used by em28xx
337 * @EM28XX_AMUX_VIDEO:
338 * On devices without AC97, this is the only value that it is currently
340 * On devices with AC97, it corresponds to the AC97 mixer "Video" control.
341 * @EM28XX_AMUX_LINE_IN:
342 * Only for devices with AC97. Corresponds to AC97 mixer "Line In".
343 * @EM28XX_AMUX_VIDEO2:
344 * Only for devices with AC97. It means that em28xx should use "Line In"
345 * And AC97 should use the "Video" mixer control.
346 * @EM28XX_AMUX_PHONE:
347 * Only for devices with AC97. Corresponds to AC97 mixer "Phone".
349 * Only for devices with AC97. Corresponds to AC97 mixer "Mic".
351 * Only for devices with AC97. Corresponds to AC97 mixer "CD".
353 * Only for devices with AC97. Corresponds to AC97 mixer "Aux".
354 * @EM28XX_AMUX_PCM_OUT:
355 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out".
357 * The em28xx chip itself has only two audio inputs: tuner and line in.
358 * On almost all devices, only the tuner input is used.
360 * However, on most devices, an auxiliary AC97 codec device is used,
361 * usually connected to the em28xx tuner input (except for
362 * @EM28XX_AMUX_LINE_IN).
364 * The AC97 device typically have several different inputs and outputs.
365 * The exact number and description depends on their model.
367 * It is possible to AC97 to mixer more than one different entries at the
368 * same time, via the alsa mux.
374 /* Some less-common mixer setups */
385 EM28XX_AOUT_MASTER = BIT(0),
386 EM28XX_AOUT_LINE = BIT(1),
387 EM28XX_AOUT_MONO = BIT(2),
388 EM28XX_AOUT_LFE = BIT(3),
389 EM28XX_AOUT_SURR = BIT(4),
391 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
392 EM28XX_AOUT_PCM_IN = BIT(7),
394 /* Bits 10-8 are used to indicate the PCM IN record select */
395 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
396 EM28XX_AOUT_PCM_CD = 1 << 8,
397 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
398 EM28XX_AOUT_PCM_AUX = 3 << 8,
399 EM28XX_AOUT_PCM_LINE = 4 << 8,
400 EM28XX_AOUT_PCM_STEREO = 5 << 8,
401 EM28XX_AOUT_PCM_MONO = 6 << 8,
402 EM28XX_AOUT_PCM_PHONE = 7 << 8,
405 static inline int ac97_return_record_select(int a_out)
407 return (a_out & 0x700) >> 8;
410 struct em28xx_reg_seq {
412 unsigned char val, mask;
416 struct em28xx_input {
417 enum enum28xx_itype type;
419 enum em28xx_amux amux;
420 enum em28xx_aout aout;
421 const struct em28xx_reg_seq *gpio;
424 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
426 enum em28xx_decoder {
427 EM28XX_NODECODER = 0,
440 enum em28xx_adecoder {
441 EM28XX_NOADECODER = 0,
445 enum em28xx_led_role {
446 EM28XX_LED_ANALOG_CAPTURING = 0,
447 EM28XX_LED_DIGITAL_CAPTURING,
448 EM28XX_LED_DIGITAL_CAPTURING_TS2,
449 EM28XX_LED_ILLUMINATION,
450 EM28XX_NUM_LED_ROLES, /* must be the last */
454 enum em28xx_led_role role;
460 enum em28xx_button_role {
461 EM28XX_BUTTON_SNAPSHOT = 0,
462 EM28XX_BUTTON_ILLUMINATION,
463 EM28XX_NUM_BUTTON_ROLES, /* must be the last */
466 struct em28xx_button {
467 enum em28xx_button_role role;
474 struct em28xx_board {
479 unsigned int def_i2c_bus; /* Default I2C bus */
482 unsigned int tda9887_conf;
485 const struct em28xx_reg_seq *dvb_gpio;
486 const struct em28xx_reg_seq *suspend_gpio;
487 const struct em28xx_reg_seq *tuner_gpio;
488 const struct em28xx_reg_seq *mute_gpio;
490 unsigned int is_em2800:1;
491 unsigned int has_msp34xx:1;
492 unsigned int mts_firmware:1;
493 unsigned int max_range_640_480:1;
494 unsigned int has_dvb:1;
495 unsigned int has_dual_ts:1;
496 unsigned int is_webcam:1;
497 unsigned int valid:1;
498 unsigned int has_ir_i2c:1;
500 unsigned char xclk, i2c_speed;
501 unsigned char radio_addr;
502 unsigned short tvaudio_addr;
504 enum em28xx_decoder decoder;
505 enum em28xx_adecoder adecoder;
507 struct em28xx_input input[MAX_EM28XX_INPUT];
508 struct em28xx_input radio;
511 /* LEDs that need to be controlled explicitly */
512 struct em28xx_led *leds;
515 const struct em28xx_button *buttons;
518 struct em28xx_eeprom {
519 u8 id[4]; /* 1a eb 67 95 */
527 __le16 string1, string2, string3;
532 #define EM28XX_CAPTURE_STREAM_EN 1
534 /* em28xx extensions */
535 #define EM28XX_AUDIO 0x10
536 #define EM28XX_DVB 0x20
537 #define EM28XX_RC 0x30
538 #define EM28XX_V4L2 0x40
540 /* em28xx resource types (used for res_get/res_lock etc */
541 #define EM28XX_RESOURCE_VIDEO 0x01
542 #define EM28XX_RESOURCE_VBI 0x02
548 struct v4l2_device v4l2_dev;
549 struct v4l2_ctrl_handler ctrl_handler;
551 struct video_device vdev;
552 struct video_device vbi_dev;
553 struct video_device radio_dev;
556 struct vb2_queue vb_vidq;
557 struct vb2_queue vb_vbiq;
558 struct mutex vb_queue_lock; /* Protects vb_vidq */
559 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */
564 /* Camera specific fields */
569 int users; /* user count for exclusive use */
570 int streaming_users; /* number of actively streaming users */
572 u32 frequency; /* selected tuner frequency */
574 struct em28xx_fmt *format;
575 v4l2_std_id norm; /* selected tv norm */
577 /* Progressive/interlaced mode */
579 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */
580 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */
582 /* Frame properties */
583 int width; /* current frame width */
584 int height; /* current frame height */
585 unsigned int hscale; /* horizontal scale factor (see datasheet) */
586 unsigned int vscale; /* vertical scale factor (see datasheet) */
587 unsigned int vbi_width;
588 unsigned int vbi_height; /* lines per field */
590 /* Capture state tracking */
594 unsigned int field_count;
596 #ifdef CONFIG_MEDIA_CONTROLLER
597 struct media_pad video_pad, vbi_pad;
598 struct media_entity *decoder;
602 struct em28xx_audio {
604 unsigned int num_urb;
605 char **transfer_buffer;
607 struct usb_device *udev;
608 unsigned int capture_transfer_done;
609 struct snd_pcm_substream *capture_pcm_substream;
611 unsigned int hwptr_done_capture;
612 struct snd_card *sndcard;
617 spinlock_t slock; /* Protects struct em28xx_audio */
619 /* Controls streaming */
620 struct work_struct wq_trigger; /* trigger to start/stop audio */
621 atomic_t stream_started; /* stream should be running if true */
626 enum em28xx_i2c_algo_type {
627 EM28XX_I2C_ALGO_EM28XX = 0,
628 EM28XX_I2C_ALGO_EM2800,
629 EM28XX_I2C_ALGO_EM25XX_BUS_B,
632 struct em28xx_i2c_bus {
636 enum em28xx_i2c_algo_type algo_type;
639 /* main device struct */
644 struct em28xx_v4l2 *v4l2;
645 struct em28xx_dvb *dvb;
646 struct em28xx_audio adev;
647 struct em28xx_IR *ir;
649 // generic device properties
650 int model; // index in the device_data struct
651 int devno; // marks the number of this device
652 enum em28xx_chip_id chip_id;
654 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge
655 unsigned int disconnected:1; // device has been diconnected
656 unsigned int has_video:1;
657 unsigned int is_audio_only:1;
658 unsigned int is_webcam:1;
659 unsigned int has_msp34xx:1;
660 unsigned int i2c_speed:2;
661 enum em28xx_int_audio_type int_audio_type;
662 enum em28xx_usb_audio_type usb_audio_type;
663 unsigned char name[32];
665 struct em28xx_board board;
667 enum em28xx_sensor em28xx_sensor; // camera specific
669 // Some older em28xx chips needs a waiting time after writing
670 unsigned int wait_after_write;
672 struct list_head devlist;
674 u32 i2s_speed; // I2S speed for audio digital stream
676 struct em28xx_audio_mode audio_mode;
678 int tuner_type; // type of the tuner
681 struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
682 struct i2c_client i2c_client[NUM_I2C_BUSES];
683 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
685 unsigned char eeprom_addrwidth_16bit:1;
686 unsigned int def_i2c_bus; // Default I2C bus
687 unsigned int cur_i2c_bus; // Current I2C bus
688 struct rt_mutex i2c_bus_lock;
691 unsigned int ctl_input; // selected input
692 unsigned int ctl_ainput;// selected audio input
693 unsigned int ctl_aoutput;// selected audio output
697 unsigned long hash; // eeprom hash - for boards with generic ID
698 unsigned long i2c_hash; // i2c devicelist hash -
699 // for boards with generic ID
701 struct work_struct request_module_wk;
704 struct mutex lock; /* protects em28xx struct */
705 struct mutex ctrl_urb_lock; /* protects urb_buf */
708 unsigned int resources;
714 // Isoc control struct
715 struct em28xx_dmaqueue vidq;
716 struct em28xx_dmaqueue vbiq;
717 struct em28xx_usb_ctl usb_ctl;
719 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */
722 struct usb_interface *intf; // the usb interface
723 u8 ifnum; // number of the assigned usb interface
724 u8 analog_ep_isoc; // address of isoc endpoint for analog
725 u8 analog_ep_bulk; // address of bulk endpoint for analog
726 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2
727 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2
728 u8 dvb_ep_isoc; // address of isoc endpoint for DVB
729 u8 dvb_ep_bulk; // address of bulk endpoint for DVB
730 int alt; // alternate setting
731 int max_pkt_size; // max packet size of the selected ep at alt
732 int packet_multiplier; // multiplier for wMaxPacketSize, used for
733 // URB buffer size definition
734 int num_alt; // number of alternative settings
735 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize
736 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc
737 // transfers for analog
738 int dvb_alt_isoc; // alternate setting for DVB isoc transfers
739 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the
740 // selected DVB ep at dvb_alt
741 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the
742 // selected DVB ep at dvb_alt
743 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc
745 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer
747 // helper funcs that call usb_control_msg
748 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,
750 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);
751 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,
753 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,
755 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);
757 enum em28xx_mode mode;
759 // Button state polling
760 struct delayed_work buttons_query_work;
761 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
762 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
763 u8 num_button_polling_addresses;
764 u16 button_polling_interval; // [ms]
765 // Snapshot button input device
766 char snapshot_button_path[30]; // path of the input dev
767 struct input_dev *sbutton_input_dev;
769 #ifdef CONFIG_MEDIA_CONTROLLER
770 struct media_device *media_dev;
771 struct media_entity input_ent[MAX_EM28XX_INPUT];
772 struct media_pad input_pad[MAX_EM28XX_INPUT];
775 struct em28xx *dev_next;
779 #define kref_to_dev(d) container_of(d, struct em28xx, ref)
782 struct list_head next;
785 int (*init)(struct em28xx *dev);
786 int (*fini)(struct em28xx *dev);
787 int (*suspend)(struct em28xx *dev);
788 int (*resume)(struct em28xx *dev);
791 /* Provided by em28xx-i2c.c */
792 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus);
793 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
794 enum em28xx_i2c_algo_type algo_type);
795 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus);
797 /* Provided by em28xx-core.c */
798 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
800 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
801 int em28xx_read_reg(struct em28xx *dev, u16 reg);
802 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
804 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
805 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
806 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
808 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
810 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
811 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
813 int em28xx_audio_analog_set(struct em28xx *dev);
814 int em28xx_audio_setup(struct em28xx *dev);
816 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
817 enum em28xx_led_role role);
818 int em28xx_capture_start(struct em28xx *dev, int start);
819 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
820 int num_bufs, int max_pkt_size, int packet_multiplier);
821 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
823 int num_bufs, int max_pkt_size, int packet_multiplier,
825 (struct em28xx *dev, struct urb *urb));
826 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
827 void em28xx_stop_urbs(struct em28xx *dev);
828 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
829 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio);
830 int em28xx_register_extension(struct em28xx_ops *dev);
831 void em28xx_unregister_extension(struct em28xx_ops *dev);
832 void em28xx_init_extension(struct em28xx *dev);
833 void em28xx_close_extension(struct em28xx *dev);
834 int em28xx_suspend_extension(struct em28xx *dev);
835 int em28xx_resume_extension(struct em28xx *dev);
837 /* Provided by em28xx-cards.c */
838 extern const struct em28xx_board em28xx_boards[];
839 extern struct usb_device_id em28xx_id_table[];
840 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
841 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
842 void em28xx_free_device(struct kref *ref);
844 /* Provided by em28xx-camera.c */
845 int em28xx_detect_sensor(struct em28xx *dev);
846 int em28xx_init_camera(struct em28xx *dev);