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@kernel.org>
8 * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
10 * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
16 #include <linux/bitfield.h>
18 #define EM28XX_VERSION "0.2.2"
19 #define DRIVER_DESC "Empia em28xx device driver"
21 #include <linux/workqueue.h>
22 #include <linux/i2c.h>
23 #include <linux/mutex.h>
24 #include <linux/kref.h>
25 #include <linux/videodev2.h>
27 #include <media/videobuf2-v4l2.h>
28 #include <media/videobuf2-vmalloc.h>
29 #include <media/v4l2-device.h>
30 #include <media/v4l2-ctrls.h>
31 #include <media/v4l2-fh.h>
32 #include <media/i2c/ir-kbd-i2c.h>
33 #include <media/rc-core.h>
36 #include "em28xx-reg.h"
38 /* Boards supported by driver */
39 #define EM2800_BOARD_UNKNOWN 0
40 #define EM2820_BOARD_UNKNOWN 1
41 #define EM2820_BOARD_TERRATEC_CINERGY_250 2
42 #define EM2820_BOARD_PINNACLE_USB_2 3
43 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
44 #define EM2820_BOARD_MSI_VOX_USB_2 5
45 #define EM2800_BOARD_TERRATEC_CINERGY_200 6
46 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
47 #define EM2800_BOARD_KWORLD_USB2800 8
48 #define EM2820_BOARD_PINNACLE_DVC_90 9
49 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
50 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11
51 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12
52 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
53 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
54 #define EM2800_BOARD_VGEAR_POCKETTV 15
55 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
56 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
57 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
58 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19
59 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
60 #define EM2800_BOARD_GRABBEEX_USB2800 21
61 #define EM2750_BOARD_UNKNOWN 22
62 #define EM2750_BOARD_DLCW_130 23
63 #define EM2820_BOARD_DLINK_USB_TV 24
64 #define EM2820_BOARD_GADMEI_UTV310 25
65 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
66 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
67 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
68 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29
69 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
70 #define EM2821_BOARD_USBGEAR_VD204 31
71 #define EM2821_BOARD_SUPERCOMP_USB_2 32
72 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33
73 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34
74 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35
75 #define EM2860_BOARD_NETGMBH_CAM 36
76 #define EM2860_BOARD_GADMEI_UTV330 37
77 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
78 #define EM2861_BOARD_KWORLD_PVRTV_300U 39
79 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40
80 #define EM2870_BOARD_KWORLD_350U 41
81 #define EM2870_BOARD_KWORLD_355U 42
82 #define EM2870_BOARD_TERRATEC_XS 43
83 #define EM2870_BOARD_TERRATEC_XS_MT2060 44
84 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45
85 #define EM2870_BOARD_COMPRO_VIDEOMATE 46
86 #define EM2880_BOARD_KWORLD_DVB_305U 47
87 #define EM2880_BOARD_KWORLD_DVB_310U 48
88 #define EM2880_BOARD_MSI_DIGIVOX_AD 49
89 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
90 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
91 #define EM2881_BOARD_DNT_DA2_HYBRID 52
92 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
93 #define EM2882_BOARD_KWORLD_VS_DVBT 54
94 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55
95 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56
96 #define EM2883_BOARD_KWORLD_HYBRID_330U 57
97 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
98 #define EM2874_BOARD_PCTV_HD_MINI_80E 59
99 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60
100 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61
101 #define EM2820_BOARD_GADMEI_TVR200 62
102 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63
103 #define EM2860_BOARD_EASYCAP 64
104 #define EM2820_BOARD_IODATA_GVMVP_SZ 65
105 #define EM2880_BOARD_EMPIRE_DUAL_TV 66
106 #define EM2860_BOARD_TERRATEC_GRABBY 67
107 #define EM2860_BOARD_TERRATEC_AV350 68
108 #define EM2882_BOARD_KWORLD_ATSC_315U 69
109 #define EM2882_BOARD_EVGA_INDTUBE 70
110 #define EM2820_BOARD_SILVERCREST_WEBCAM 71
111 #define EM2861_BOARD_GADMEI_UTV330PLUS 72
112 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
113 #define EM2800_BOARD_VC211A 74
114 #define EM2882_BOARD_DIKOM_DK300 75
115 #define EM2870_BOARD_KWORLD_A340 76
116 #define EM2874_BOARD_LEADERSHIP_ISDBT 77
117 #define EM28174_BOARD_PCTV_290E 78
118 #define EM2884_BOARD_TERRATEC_H5 79
119 #define EM28174_BOARD_PCTV_460E 80
120 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
121 #define EM2884_BOARD_CINERGY_HTC_STICK 82
122 #define EM2860_BOARD_HT_VIDBOX_NW03 83
123 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84
124 #define EM2884_BOARD_PCTV_510E 85
125 #define EM2884_BOARD_PCTV_520E 86
126 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87
127 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88
128 #define EM2874_BOARD_DELOCK_61959 89
129 #define EM2874_BOARD_KWORLD_UB435Q_V2 90
130 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91
131 #define EM28178_BOARD_PCTV_461E 92
132 #define EM2874_BOARD_KWORLD_UB435Q_V3 93
133 #define EM28178_BOARD_PCTV_292E 94
134 #define EM2861_BOARD_LEADTEK_VC100 95
135 #define EM28178_BOARD_TERRATEC_T2_STICK_HD 96
136 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97
137 #define EM28178_BOARD_PLEX_PX_BCUD 98
138 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99
139 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100
140 #define EM2884_BOARD_TERRATEC_H6 101
141 #define EM2882_BOARD_ZOLID_HYBRID_TV_STICK 102
142 #define EM2861_BOARD_MAGIX_VIDEOWANDLER2 103
143 #define EM28178_BOARD_PCTV_461E_V2 104
144 #define EM2860_BOARD_MYGICA_IGRABBER 105
145 #define EM2874_BOARD_HAUPPAUGE_USB_QUADHD 106
147 /* Limits minimum and default number of buffers */
148 #define EM28XX_MIN_BUF 4
149 #define EM28XX_DEF_BUF 8
151 /*Limits the max URB message size */
152 #define URB_MAX_CTRL_SIZE 80
154 /* Params for validated field */
155 #define EM28XX_BOARD_NOT_VALIDATED 1
156 #define EM28XX_BOARD_VALIDATED 0
158 /* Params for em28xx_cmd() audio */
159 #define EM28XX_START_AUDIO 1
160 #define EM28XX_STOP_AUDIO 0
162 /* maximum number of em28xx boards */
163 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */
165 /* maximum number of frames that can be queued */
166 #define EM28XX_NUM_FRAMES 5
167 /* number of frames that get used for v4l2_read() */
168 #define EM28XX_NUM_READ_FRAMES 2
170 /* number of buffers for isoc transfers */
171 #define EM28XX_NUM_BUFS 5
172 #define EM28XX_DVB_NUM_BUFS 5
174 /* max number of I2C buses on em28xx devices */
175 #define NUM_I2C_BUSES 2
178 * isoc transfers: number of packets for each buffer
179 * windows requests only 64 packets .. so we better do the same
180 * this is what I found out for all alternate numbers there!
182 #define EM28XX_NUM_ISOC_PACKETS 64
183 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
186 * bulk transfers: transfer buffer size = packet size * packet multiplier
187 * USB 2.0 spec says bulk packet size is always 512 bytes
189 #define EM28XX_BULK_PACKET_MULTIPLIER 384
190 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94
192 #define EM28XX_INTERLACED_DEFAULT 1
194 /* time in msecs to wait for AC97 xfers to finish */
195 #define EM28XX_AC97_XFER_TIMEOUT 100
197 /* max. number of button state polling addresses */
198 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5
201 #define SECONDARY_TS 1
212 * struct em28xx_usb_bufs - Contains URB-related buffer data
214 * @max_pkt_size: max packet size of isoc transaction
215 * @num_packets: number of packets in each buffer
216 * @num_bufs: number of allocated urb
217 * @urb: urb for isoc/bulk transfers
218 * @buf: transfer buffers for isoc/bulk transfer
220 struct em28xx_usb_bufs {
229 * struct em28xx_usb_ctl - Contains URB-related buffer data
231 * @analog_bufs: isoc/bulk transfer buffers for analog mode
232 * @digital_bufs: isoc/bulk transfer buffers for digital mode
233 * @vid_buf: Stores already requested video buffers
234 * @vbi_buf: Stores already requested VBI buffers
235 * @urb_data_copy: copy data from URB
237 struct em28xx_usb_ctl {
238 struct em28xx_usb_bufs analog_bufs;
239 struct em28xx_usb_bufs digital_bufs;
240 struct em28xx_buffer *vid_buf;
241 struct em28xx_buffer *vbi_buf;
242 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
246 * struct em28xx_fmt - Struct to enumberate video formats
248 * @fourcc: v4l2 format id
249 * @depth: mean number of bits to represent a pixel
250 * @reg: em28xx register value to set it
259 * struct em28xx_buffer- buffer for storing one video frame
261 * @vb: common v4l buffer stuff
262 * @list: List to associate it with the other buffers
263 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr()
264 * @length: length of the buffer, as returned by vb2_plane_size()
265 * @top_field: If non-zero, indicate that the buffer is the top field
266 * @pos: Indicate the next position of the buffer to be filled.
267 * @vb_buf: pointer to vmalloc memory address in vb
271 * in interlaced mode, @pos is reset to zero at the start of each new
272 * field (not frame !)
274 struct em28xx_buffer {
275 struct vb2_v4l2_buffer vb; /* must be first */
277 struct list_head list;
288 struct em28xx_dmaqueue {
289 struct list_head active;
291 wait_queue_head_t wq;
296 #define MAX_EM28XX_INPUT 4
297 enum enum28xx_itype {
298 EM28XX_VMUX_COMPOSITE = 1,
300 EM28XX_VMUX_TELEVISION,
304 enum em28xx_ac97_mode {
307 EM28XX_AC97_SIGMATEL,
311 struct em28xx_audio_mode {
312 enum em28xx_ac97_mode ac97;
315 enum em28xx_int_audio_type {
316 EM28XX_INT_AUDIO_NONE = 0,
317 EM28XX_INT_AUDIO_AC97,
318 EM28XX_INT_AUDIO_I2S,
321 enum em28xx_usb_audio_type {
322 EM28XX_USB_AUDIO_NONE = 0,
323 EM28XX_USB_AUDIO_CLASS,
324 EM28XX_USB_AUDIO_VENDOR,
328 * enum em28xx_amux - describes the type of audio input used by em28xx
330 * @EM28XX_AMUX_UNUSED:
331 * Used only on em28xx dev->map field, in order to mark an entry
333 * @EM28XX_AMUX_VIDEO:
334 * On devices without AC97, this is the only value that it is currently
336 * On devices with AC97, it corresponds to the AC97 mixer "Video" control.
337 * @EM28XX_AMUX_LINE_IN:
338 * Only for devices with AC97. Corresponds to AC97 mixer "Line In".
339 * @EM28XX_AMUX_VIDEO2:
340 * Only for devices with AC97. It means that em28xx should use "Line In"
341 * And AC97 should use the "Video" mixer control.
342 * @EM28XX_AMUX_PHONE:
343 * Only for devices with AC97. Corresponds to AC97 mixer "Phone".
345 * Only for devices with AC97. Corresponds to AC97 mixer "Mic".
347 * Only for devices with AC97. Corresponds to AC97 mixer "CD".
349 * Only for devices with AC97. Corresponds to AC97 mixer "Aux".
350 * @EM28XX_AMUX_PCM_OUT:
351 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out".
353 * The em28xx chip itself has only two audio inputs: tuner and line in.
354 * On almost all devices, only the tuner input is used.
356 * However, on most devices, an auxiliary AC97 codec device is used,
357 * usually connected to the em28xx tuner input (except for
358 * @EM28XX_AMUX_LINE_IN).
360 * The AC97 device typically have several different inputs and outputs.
361 * The exact number and description depends on their model.
363 * It is possible to AC97 to mixer more than one different entries at the
364 * same time, via the alsa mux.
367 EM28XX_AMUX_UNUSED = -1,
368 EM28XX_AMUX_VIDEO = 0,
371 /* Some less-common mixer setups */
382 EM28XX_AOUT_MASTER = BIT(0),
383 EM28XX_AOUT_LINE = BIT(1),
384 EM28XX_AOUT_MONO = BIT(2),
385 EM28XX_AOUT_LFE = BIT(3),
386 EM28XX_AOUT_SURR = BIT(4),
388 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
389 EM28XX_AOUT_PCM_IN = BIT(7),
391 /* Bits 10-8 are used to indicate the PCM IN record select */
392 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
393 EM28XX_AOUT_PCM_CD = 1 << 8,
394 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
395 EM28XX_AOUT_PCM_AUX = 3 << 8,
396 EM28XX_AOUT_PCM_LINE = 4 << 8,
397 EM28XX_AOUT_PCM_STEREO = 5 << 8,
398 EM28XX_AOUT_PCM_MONO = 6 << 8,
399 EM28XX_AOUT_PCM_PHONE = 7 << 8,
402 static inline int ac97_return_record_select(int a_out)
404 return (a_out & 0x700) >> 8;
407 struct em28xx_reg_seq {
409 unsigned char val, mask;
413 struct em28xx_input {
414 enum enum28xx_itype type;
416 enum em28xx_amux amux;
417 enum em28xx_aout aout;
418 const struct em28xx_reg_seq *gpio;
421 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
423 enum em28xx_decoder {
424 EM28XX_NODECODER = 0,
437 enum em28xx_adecoder {
438 EM28XX_NOADECODER = 0,
442 enum em28xx_led_role {
443 EM28XX_LED_ANALOG_CAPTURING = 0,
444 EM28XX_LED_DIGITAL_CAPTURING,
445 EM28XX_LED_DIGITAL_CAPTURING_TS2,
446 EM28XX_LED_ILLUMINATION,
447 EM28XX_NUM_LED_ROLES, /* must be the last */
451 enum em28xx_led_role role;
457 enum em28xx_button_role {
458 EM28XX_BUTTON_SNAPSHOT = 0,
459 EM28XX_BUTTON_ILLUMINATION,
460 EM28XX_NUM_BUTTON_ROLES, /* must be the last */
463 struct em28xx_button {
464 enum em28xx_button_role role;
471 struct em28xx_board {
476 unsigned int def_i2c_bus; /* Default I2C bus */
479 unsigned int tda9887_conf;
482 const struct em28xx_reg_seq *dvb_gpio;
483 const struct em28xx_reg_seq *suspend_gpio;
484 const struct em28xx_reg_seq *tuner_gpio;
485 const struct em28xx_reg_seq *mute_gpio;
487 unsigned int is_em2800:1;
488 unsigned int has_msp34xx:1;
489 unsigned int mts_firmware:1;
490 unsigned int max_range_640_480:1;
491 unsigned int has_dvb:1;
492 unsigned int has_dual_ts:1;
493 unsigned int is_webcam:1;
494 unsigned int valid:1;
495 unsigned int has_ir_i2c:1;
497 unsigned char xclk, i2c_speed;
498 unsigned char radio_addr;
499 unsigned short tvaudio_addr;
501 enum em28xx_decoder decoder;
502 enum em28xx_adecoder adecoder;
504 struct em28xx_input input[MAX_EM28XX_INPUT];
505 struct em28xx_input radio;
508 /* LEDs that need to be controlled explicitly */
509 struct em28xx_led *leds;
512 const struct em28xx_button *buttons;
515 struct em28xx_eeprom {
516 u8 id[4]; /* 1a eb 67 95 */
524 __le16 string1, string2, string3;
529 #define EM28XX_CAPTURE_STREAM_EN 1
531 /* em28xx extensions */
532 #define EM28XX_AUDIO 0x10
533 #define EM28XX_DVB 0x20
534 #define EM28XX_RC 0x30
535 #define EM28XX_V4L2 0x40
537 /* em28xx resource types (used for res_get/res_lock etc */
538 #define EM28XX_RESOURCE_VIDEO 0x01
539 #define EM28XX_RESOURCE_VBI 0x02
545 struct v4l2_device v4l2_dev;
546 struct v4l2_ctrl_handler ctrl_handler;
548 struct video_device vdev;
549 struct video_device vbi_dev;
550 struct video_device radio_dev;
553 struct vb2_queue vb_vidq;
554 struct vb2_queue vb_vbiq;
555 struct mutex vb_queue_lock; /* Protects vb_vidq */
556 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */
561 /* Camera specific fields */
566 int users; /* user count for exclusive use */
567 int streaming_users; /* number of actively streaming users */
569 u32 frequency; /* selected tuner frequency */
571 struct em28xx_fmt *format;
572 v4l2_std_id norm; /* selected tv norm */
574 /* Progressive/interlaced mode */
576 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */
577 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */
579 /* Frame properties */
580 int width; /* current frame width */
581 int height; /* current frame height */
582 unsigned int hscale; /* horizontal scale factor (see datasheet) */
583 unsigned int vscale; /* vertical scale factor (see datasheet) */
584 unsigned int vbi_width;
585 unsigned int vbi_height; /* lines per field */
587 /* Capture state tracking */
591 unsigned int field_count;
593 #ifdef CONFIG_MEDIA_CONTROLLER
594 struct media_pad video_pad, vbi_pad;
595 struct media_entity *decoder;
599 struct em28xx_audio {
601 unsigned int num_urb;
602 char **transfer_buffer;
604 struct usb_device *udev;
605 unsigned int capture_transfer_done;
606 struct snd_pcm_substream *capture_pcm_substream;
608 unsigned int hwptr_done_capture;
609 struct snd_card *sndcard;
614 spinlock_t slock; /* Protects struct em28xx_audio */
616 /* Controls streaming */
617 struct work_struct wq_trigger; /* trigger to start/stop audio */
618 atomic_t stream_started; /* stream should be running if true */
621 enum em28xx_i2c_algo_type {
622 EM28XX_I2C_ALGO_EM28XX = 0,
623 EM28XX_I2C_ALGO_EM2800,
624 EM28XX_I2C_ALGO_EM25XX_BUS_B,
627 struct em28xx_i2c_bus {
631 enum em28xx_i2c_algo_type algo_type;
634 /* main device struct */
639 struct em28xx_v4l2 *v4l2;
640 struct em28xx_dvb *dvb;
641 struct em28xx_audio adev;
642 struct em28xx_IR *ir;
644 // generic device properties
645 int model; // index in the device_data struct
646 int devno; // marks the number of this device
647 enum em28xx_chip_id chip_id;
649 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge
650 unsigned int disconnected:1; // device has been disconnected
651 unsigned int has_video:1;
652 unsigned int is_audio_only:1;
653 unsigned int is_webcam:1;
654 unsigned int has_msp34xx:1;
655 unsigned int i2c_speed:2;
656 enum em28xx_int_audio_type int_audio_type;
657 enum em28xx_usb_audio_type usb_audio_type;
658 unsigned char name[32];
660 struct em28xx_board board;
662 enum em28xx_sensor em28xx_sensor; // camera specific
664 // Some older em28xx chips needs a waiting time after writing
665 unsigned int wait_after_write;
667 struct list_head devlist;
669 u32 i2s_speed; // I2S speed for audio digital stream
671 struct em28xx_audio_mode audio_mode;
673 int tuner_type; // type of the tuner
676 struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
677 struct i2c_client i2c_client[NUM_I2C_BUSES];
678 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
680 unsigned char eeprom_addrwidth_16bit:1;
681 unsigned int def_i2c_bus; // Default I2C bus
682 unsigned int cur_i2c_bus; // Current I2C bus
683 struct rt_mutex i2c_bus_lock;
686 unsigned int ctl_input; // selected input
687 unsigned int ctl_ainput;// selected audio input
688 unsigned int ctl_aoutput;// selected audio output
689 enum em28xx_amux amux_map[MAX_EM28XX_INPUT];
694 unsigned long hash; // eeprom hash - for boards with generic ID
695 unsigned long i2c_hash; // i2c devicelist hash -
696 // for boards with generic ID
698 struct work_struct request_module_wk;
701 struct mutex lock; /* protects em28xx struct */
702 struct mutex ctrl_urb_lock; /* protects urb_buf */
705 unsigned int resources;
711 // Isoc control struct
712 struct em28xx_dmaqueue vidq;
713 struct em28xx_dmaqueue vbiq;
714 struct em28xx_usb_ctl usb_ctl;
716 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */
719 struct usb_interface *intf; // the usb interface
720 u8 ifnum; // number of the assigned usb interface
721 u8 analog_ep_isoc; // address of isoc endpoint for analog
722 u8 analog_ep_bulk; // address of bulk endpoint for analog
723 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2
724 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2
725 u8 dvb_ep_isoc; // address of isoc endpoint for DVB
726 u8 dvb_ep_bulk; // address of bulk endpoint for DVB
727 int alt; // alternate setting
728 int max_pkt_size; // max packet size of the selected ep at alt
729 int packet_multiplier; // multiplier for wMaxPacketSize, used for
730 // URB buffer size definition
731 int num_alt; // number of alternative settings
732 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize
733 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc
734 // transfers for analog
735 int dvb_alt_isoc; // alternate setting for DVB isoc transfers
736 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the
737 // selected DVB ep at dvb_alt
738 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the
739 // selected DVB ep at dvb_alt
740 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc
742 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer
744 // helper funcs that call usb_control_msg
745 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,
747 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);
748 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,
750 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,
752 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);
754 enum em28xx_mode mode;
756 // Button state polling
757 struct delayed_work buttons_query_work;
758 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
759 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
760 u8 num_button_polling_addresses;
761 u16 button_polling_interval; // [ms]
762 // Snapshot button input device
763 char snapshot_button_path[30]; // path of the input dev
764 struct input_dev *sbutton_input_dev;
766 #ifdef CONFIG_MEDIA_CONTROLLER
767 struct media_device *media_dev;
768 struct media_entity input_ent[MAX_EM28XX_INPUT];
769 struct media_pad input_pad[MAX_EM28XX_INPUT];
772 struct em28xx *dev_next;
776 #define kref_to_dev(d) container_of(d, struct em28xx, ref)
779 struct list_head next;
782 int (*init)(struct em28xx *dev);
783 int (*fini)(struct em28xx *dev);
784 int (*suspend)(struct em28xx *dev);
785 int (*resume)(struct em28xx *dev);
788 /* Provided by em28xx-i2c.c */
789 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus);
790 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
791 enum em28xx_i2c_algo_type algo_type);
792 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus);
794 /* Provided by em28xx-core.c */
795 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
797 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
798 int em28xx_read_reg(struct em28xx *dev, u16 reg);
799 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
801 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
802 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
803 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
805 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
807 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
808 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
810 int em28xx_audio_analog_set(struct em28xx *dev);
811 int em28xx_audio_setup(struct em28xx *dev);
813 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
814 enum em28xx_led_role role);
815 int em28xx_capture_start(struct em28xx *dev, int start);
816 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
817 int num_bufs, int max_pkt_size, int packet_multiplier);
818 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
820 int num_bufs, int max_pkt_size, int packet_multiplier,
822 (struct em28xx *dev, struct urb *urb));
823 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
824 void em28xx_stop_urbs(struct em28xx *dev);
825 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
826 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio);
827 int em28xx_register_extension(struct em28xx_ops *dev);
828 void em28xx_unregister_extension(struct em28xx_ops *dev);
829 void em28xx_init_extension(struct em28xx *dev);
830 void em28xx_close_extension(struct em28xx *dev);
831 int em28xx_suspend_extension(struct em28xx *dev);
832 int em28xx_resume_extension(struct em28xx *dev);
834 /* Provided by em28xx-cards.c */
835 extern const struct em28xx_board em28xx_boards[];
836 extern struct usb_device_id em28xx_id_table[];
837 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
838 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
839 void em28xx_free_device(struct kref *ref);
841 /* Provided by em28xx-camera.c */
842 int em28xx_detect_sensor(struct em28xx *dev);
843 int em28xx_init_camera(struct em28xx *dev);