diff options
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 845 |
1 files changed, 845 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h new file mode 100644 index 0000000000..db18dd814a --- /dev/null +++ b/drivers/media/usb/em28xx/em28xx.h @@ -0,0 +1,845 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices + * + * Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + * Ludovico Cavedon <cavedon@sssup.it> + * Mauro Carvalho Chehab <mchehab@kernel.org> + * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> + * + * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + */ + +#ifndef _EM28XX_H +#define _EM28XX_H + +#include <linux/bitfield.h> + +#define EM28XX_VERSION "0.2.2" +#define DRIVER_DESC "Empia em28xx device driver" + +#include <linux/workqueue.h> +#include <linux/i2c.h> +#include <linux/mutex.h> +#include <linux/kref.h> +#include <linux/videodev2.h> + +#include <media/videobuf2-v4l2.h> +#include <media/videobuf2-vmalloc.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-fh.h> +#include <media/i2c/ir-kbd-i2c.h> +#include <media/rc-core.h> +#include "xc2028.h" +#include "xc5000.h" +#include "em28xx-reg.h" + +/* Boards supported by driver */ +#define EM2800_BOARD_UNKNOWN 0 +#define EM2820_BOARD_UNKNOWN 1 +#define EM2820_BOARD_TERRATEC_CINERGY_250 2 +#define EM2820_BOARD_PINNACLE_USB_2 3 +#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 +#define EM2820_BOARD_MSI_VOX_USB_2 5 +#define EM2800_BOARD_TERRATEC_CINERGY_200 6 +#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 +#define EM2800_BOARD_KWORLD_USB2800 8 +#define EM2820_BOARD_PINNACLE_DVC_90 9 +#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 +#define EM2880_BOARD_TERRATEC_HYBRID_XS 11 +#define EM2820_BOARD_KWORLD_PVRTV2800RF 12 +#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 +#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 +#define EM2800_BOARD_VGEAR_POCKETTV 15 +#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16 +#define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 +#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 +#define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19 +#define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20 +#define EM2800_BOARD_GRABBEEX_USB2800 21 +#define EM2750_BOARD_UNKNOWN 22 +#define EM2750_BOARD_DLCW_130 23 +#define EM2820_BOARD_DLINK_USB_TV 24 +#define EM2820_BOARD_GADMEI_UTV310 25 +#define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 +#define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 +#define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 +#define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29 +#define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 +#define EM2821_BOARD_USBGEAR_VD204 31 +#define EM2821_BOARD_SUPERCOMP_USB_2 32 +#define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33 +#define EM2860_BOARD_TERRATEC_HYBRID_XS 34 +#define EM2860_BOARD_TYPHOON_DVD_MAKER 35 +#define EM2860_BOARD_NETGMBH_CAM 36 +#define EM2860_BOARD_GADMEI_UTV330 37 +#define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38 +#define EM2861_BOARD_KWORLD_PVRTV_300U 39 +#define EM2861_BOARD_PLEXTOR_PX_TV100U 40 +#define EM2870_BOARD_KWORLD_350U 41 +#define EM2870_BOARD_KWORLD_355U 42 +#define EM2870_BOARD_TERRATEC_XS 43 +#define EM2870_BOARD_TERRATEC_XS_MT2060 44 +#define EM2870_BOARD_PINNACLE_PCTV_DVB 45 +#define EM2870_BOARD_COMPRO_VIDEOMATE 46 +#define EM2880_BOARD_KWORLD_DVB_305U 47 +#define EM2880_BOARD_KWORLD_DVB_310U 48 +#define EM2880_BOARD_MSI_DIGIVOX_AD 49 +#define EM2880_BOARD_MSI_DIGIVOX_AD_II 50 +#define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51 +#define EM2881_BOARD_DNT_DA2_HYBRID 52 +#define EM2881_BOARD_PINNACLE_HYBRID_PRO 53 +#define EM2882_BOARD_KWORLD_VS_DVBT 54 +#define EM2882_BOARD_TERRATEC_HYBRID_XS 55 +#define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56 +#define EM2883_BOARD_KWORLD_HYBRID_330U 57 +#define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58 +#define EM2874_BOARD_PCTV_HD_MINI_80E 59 +#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60 +#define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61 +#define EM2820_BOARD_GADMEI_TVR200 62 +#define EM2860_BOARD_KAIOMY_TVNPC_U2 63 +#define EM2860_BOARD_EASYCAP 64 +#define EM2820_BOARD_IODATA_GVMVP_SZ 65 +#define EM2880_BOARD_EMPIRE_DUAL_TV 66 +#define EM2860_BOARD_TERRATEC_GRABBY 67 +#define EM2860_BOARD_TERRATEC_AV350 68 +#define EM2882_BOARD_KWORLD_ATSC_315U 69 +#define EM2882_BOARD_EVGA_INDTUBE 70 +#define EM2820_BOARD_SILVERCREST_WEBCAM 71 +#define EM2861_BOARD_GADMEI_UTV330PLUS 72 +#define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73 +#define EM2800_BOARD_VC211A 74 +#define EM2882_BOARD_DIKOM_DK300 75 +#define EM2870_BOARD_KWORLD_A340 76 +#define EM2874_BOARD_LEADERSHIP_ISDBT 77 +#define EM28174_BOARD_PCTV_290E 78 +#define EM2884_BOARD_TERRATEC_H5 79 +#define EM28174_BOARD_PCTV_460E 80 +#define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81 +#define EM2884_BOARD_CINERGY_HTC_STICK 82 +#define EM2860_BOARD_HT_VIDBOX_NW03 83 +#define EM2874_BOARD_MAXMEDIA_UB425_TC 84 +#define EM2884_BOARD_PCTV_510E 85 +#define EM2884_BOARD_PCTV_520E 86 +#define EM2884_BOARD_TERRATEC_HTC_USB_XS 87 +#define EM2884_BOARD_C3TECH_DIGITAL_DUO 88 +#define EM2874_BOARD_DELOCK_61959 89 +#define EM2874_BOARD_KWORLD_UB435Q_V2 90 +#define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91 +#define EM28178_BOARD_PCTV_461E 92 +#define EM2874_BOARD_KWORLD_UB435Q_V3 93 +#define EM28178_BOARD_PCTV_292E 94 +#define EM2861_BOARD_LEADTEK_VC100 95 +#define EM28178_BOARD_TERRATEC_T2_STICK_HD 96 +#define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97 +#define EM28178_BOARD_PLEX_PX_BCUD 98 +#define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99 +#define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100 +#define EM2884_BOARD_TERRATEC_H6 101 +#define EM2882_BOARD_ZOLID_HYBRID_TV_STICK 102 +#define EM2861_BOARD_MAGIX_VIDEOWANDLER2 103 +#define EM28178_BOARD_PCTV_461E_V2 104 +#define EM2860_BOARD_MYGICA_IGRABBER 105 +#define EM2874_BOARD_HAUPPAUGE_USB_QUADHD 106 + +/* Limits minimum and default number of buffers */ +#define EM28XX_MIN_BUF 4 +#define EM28XX_DEF_BUF 8 + +/*Limits the max URB message size */ +#define URB_MAX_CTRL_SIZE 80 + +/* Params for validated field */ +#define EM28XX_BOARD_NOT_VALIDATED 1 +#define EM28XX_BOARD_VALIDATED 0 + +/* Params for em28xx_cmd() audio */ +#define EM28XX_START_AUDIO 1 +#define EM28XX_STOP_AUDIO 0 + +/* maximum number of em28xx boards */ +#define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */ + +/* maximum number of frames that can be queued */ +#define EM28XX_NUM_FRAMES 5 +/* number of frames that get used for v4l2_read() */ +#define EM28XX_NUM_READ_FRAMES 2 + +/* number of buffers for isoc transfers */ +#define EM28XX_NUM_BUFS 5 +#define EM28XX_DVB_NUM_BUFS 5 + +/* max number of I2C buses on em28xx devices */ +#define NUM_I2C_BUSES 2 + +/* + * isoc transfers: number of packets for each buffer + * windows requests only 64 packets .. so we better do the same + * this is what I found out for all alternate numbers there! + */ +#define EM28XX_NUM_ISOC_PACKETS 64 +#define EM28XX_DVB_NUM_ISOC_PACKETS 64 + +/* + * bulk transfers: transfer buffer size = packet size * packet multiplier + * USB 2.0 spec says bulk packet size is always 512 bytes + */ +#define EM28XX_BULK_PACKET_MULTIPLIER 384 +#define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94 + +#define EM28XX_INTERLACED_DEFAULT 1 + +/* time in msecs to wait for AC97 xfers to finish */ +#define EM28XX_AC97_XFER_TIMEOUT 100 + +/* max. number of button state polling addresses */ +#define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 + +#define PRIMARY_TS 0 +#define SECONDARY_TS 1 + +enum em28xx_mode { + EM28XX_SUSPEND, + EM28XX_ANALOG_MODE, + EM28XX_DIGITAL_MODE, +}; + +struct em28xx; + +/** + * struct em28xx_usb_bufs - Contains URB-related buffer data + * + * @max_pkt_size: max packet size of isoc transaction + * @num_packets: number of packets in each buffer + * @num_bufs: number of allocated urb + * @urb: urb for isoc/bulk transfers + * @buf: transfer buffers for isoc/bulk transfer + */ +struct em28xx_usb_bufs { + int max_pkt_size; + int num_packets; + int num_bufs; + struct urb **urb; + char **buf; +}; + +/** + * struct em28xx_usb_ctl - Contains URB-related buffer data + * + * @analog_bufs: isoc/bulk transfer buffers for analog mode + * @digital_bufs: isoc/bulk transfer buffers for digital mode + * @vid_buf: Stores already requested video buffers + * @vbi_buf: Stores already requested VBI buffers + * @urb_data_copy: copy data from URB + */ +struct em28xx_usb_ctl { + struct em28xx_usb_bufs analog_bufs; + struct em28xx_usb_bufs digital_bufs; + struct em28xx_buffer *vid_buf; + struct em28xx_buffer *vbi_buf; + int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); +}; + +/** + * struct em28xx_fmt - Struct to enumberate video formats + * + * @fourcc: v4l2 format id + * @depth: mean number of bits to represent a pixel + * @reg: em28xx register value to set it + */ +struct em28xx_fmt { + u32 fourcc; + int depth; + int reg; +}; + +/** + * struct em28xx_buffer- buffer for storing one video frame + * + * @vb: common v4l buffer stuff + * @list: List to associate it with the other buffers + * @mem: pointer to the buffer, as returned by vb2_plane_vaddr() + * @length: length of the buffer, as returned by vb2_plane_size() + * @top_field: If non-zero, indicate that the buffer is the top field + * @pos: Indicate the next position of the buffer to be filled. + * @vb_buf: pointer to vmalloc memory address in vb + * + * .. note:: + * + * in interlaced mode, @pos is reset to zero at the start of each new + * field (not frame !) + */ +struct em28xx_buffer { + struct vb2_v4l2_buffer vb; /* must be first */ + + struct list_head list; + + void *mem; + unsigned int length; + int top_field; + + unsigned int pos; + + char *vb_buf; +}; + +struct em28xx_dmaqueue { + struct list_head active; + + wait_queue_head_t wq; +}; + +/* inputs */ + +#define MAX_EM28XX_INPUT 4 +enum enum28xx_itype { + EM28XX_VMUX_COMPOSITE = 1, + EM28XX_VMUX_SVIDEO, + EM28XX_VMUX_TELEVISION, + EM28XX_RADIO, +}; + +enum em28xx_ac97_mode { + EM28XX_NO_AC97 = 0, + EM28XX_AC97_EM202, + EM28XX_AC97_SIGMATEL, + EM28XX_AC97_OTHER, +}; + +struct em28xx_audio_mode { + enum em28xx_ac97_mode ac97; +}; + +enum em28xx_int_audio_type { + EM28XX_INT_AUDIO_NONE = 0, + EM28XX_INT_AUDIO_AC97, + EM28XX_INT_AUDIO_I2S, +}; + +enum em28xx_usb_audio_type { + EM28XX_USB_AUDIO_NONE = 0, + EM28XX_USB_AUDIO_CLASS, + EM28XX_USB_AUDIO_VENDOR, +}; + +/** + * enum em28xx_amux - describes the type of audio input used by em28xx + * + * @EM28XX_AMUX_UNUSED: + * Used only on em28xx dev->map field, in order to mark an entry + * as unused. + * @EM28XX_AMUX_VIDEO: + * On devices without AC97, this is the only value that it is currently + * allowed. + * On devices with AC97, it corresponds to the AC97 mixer "Video" control. + * @EM28XX_AMUX_LINE_IN: + * Only for devices with AC97. Corresponds to AC97 mixer "Line In". + * @EM28XX_AMUX_VIDEO2: + * Only for devices with AC97. It means that em28xx should use "Line In" + * And AC97 should use the "Video" mixer control. + * @EM28XX_AMUX_PHONE: + * Only for devices with AC97. Corresponds to AC97 mixer "Phone". + * @EM28XX_AMUX_MIC: + * Only for devices with AC97. Corresponds to AC97 mixer "Mic". + * @EM28XX_AMUX_CD: + * Only for devices with AC97. Corresponds to AC97 mixer "CD". + * @EM28XX_AMUX_AUX: + * Only for devices with AC97. Corresponds to AC97 mixer "Aux". + * @EM28XX_AMUX_PCM_OUT: + * Only for devices with AC97. Corresponds to AC97 mixer "PCM out". + * + * The em28xx chip itself has only two audio inputs: tuner and line in. + * On almost all devices, only the tuner input is used. + * + * However, on most devices, an auxiliary AC97 codec device is used, + * usually connected to the em28xx tuner input (except for + * @EM28XX_AMUX_LINE_IN). + * + * The AC97 device typically have several different inputs and outputs. + * The exact number and description depends on their model. + * + * It is possible to AC97 to mixer more than one different entries at the + * same time, via the alsa mux. + */ +enum em28xx_amux { + EM28XX_AMUX_UNUSED = -1, + EM28XX_AMUX_VIDEO = 0, + EM28XX_AMUX_LINE_IN, + + /* Some less-common mixer setups */ + EM28XX_AMUX_VIDEO2, + EM28XX_AMUX_PHONE, + EM28XX_AMUX_MIC, + EM28XX_AMUX_CD, + EM28XX_AMUX_AUX, + EM28XX_AMUX_PCM_OUT, +}; + +enum em28xx_aout { + /* AC97 outputs */ + EM28XX_AOUT_MASTER = BIT(0), + EM28XX_AOUT_LINE = BIT(1), + EM28XX_AOUT_MONO = BIT(2), + EM28XX_AOUT_LFE = BIT(3), + EM28XX_AOUT_SURR = BIT(4), + + /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ + EM28XX_AOUT_PCM_IN = BIT(7), + + /* Bits 10-8 are used to indicate the PCM IN record select */ + EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, + EM28XX_AOUT_PCM_CD = 1 << 8, + EM28XX_AOUT_PCM_VIDEO = 2 << 8, + EM28XX_AOUT_PCM_AUX = 3 << 8, + EM28XX_AOUT_PCM_LINE = 4 << 8, + EM28XX_AOUT_PCM_STEREO = 5 << 8, + EM28XX_AOUT_PCM_MONO = 6 << 8, + EM28XX_AOUT_PCM_PHONE = 7 << 8, +}; + +static inline int ac97_return_record_select(int a_out) +{ + return (a_out & 0x700) >> 8; +} + +struct em28xx_reg_seq { + int reg; + unsigned char val, mask; + int sleep; +}; + +struct em28xx_input { + enum enum28xx_itype type; + unsigned int vmux; + enum em28xx_amux amux; + enum em28xx_aout aout; + const struct em28xx_reg_seq *gpio; +}; + +#define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) + +enum em28xx_decoder { + EM28XX_NODECODER = 0, + EM28XX_TVP5150, + EM28XX_SAA711X, +}; + +enum em28xx_sensor { + EM28XX_NOSENSOR = 0, + EM28XX_MT9V011, + EM28XX_MT9M001, + EM28XX_MT9M111, + EM28XX_OV2640, +}; + +enum em28xx_adecoder { + EM28XX_NOADECODER = 0, + EM28XX_TVAUDIO, +}; + +enum em28xx_led_role { + EM28XX_LED_ANALOG_CAPTURING = 0, + EM28XX_LED_DIGITAL_CAPTURING, + EM28XX_LED_DIGITAL_CAPTURING_TS2, + EM28XX_LED_ILLUMINATION, + EM28XX_NUM_LED_ROLES, /* must be the last */ +}; + +struct em28xx_led { + enum em28xx_led_role role; + u8 gpio_reg; + u8 gpio_mask; + bool inverted; +}; + +enum em28xx_button_role { + EM28XX_BUTTON_SNAPSHOT = 0, + EM28XX_BUTTON_ILLUMINATION, + EM28XX_NUM_BUTTON_ROLES, /* must be the last */ +}; + +struct em28xx_button { + enum em28xx_button_role role; + u8 reg_r; + u8 reg_clearing; + u8 mask; + bool inverted; +}; + +struct em28xx_board { + char *name; + int vchannels; + int tuner_type; + int tuner_addr; + unsigned int def_i2c_bus; /* Default I2C bus */ + + /* i2c flags */ + unsigned int tda9887_conf; + + /* GPIO sequences */ + const struct em28xx_reg_seq *dvb_gpio; + const struct em28xx_reg_seq *suspend_gpio; + const struct em28xx_reg_seq *tuner_gpio; + const struct em28xx_reg_seq *mute_gpio; + + unsigned int is_em2800:1; + unsigned int has_msp34xx:1; + unsigned int mts_firmware:1; + unsigned int max_range_640_480:1; + unsigned int has_dvb:1; + unsigned int has_dual_ts:1; + unsigned int is_webcam:1; + unsigned int valid:1; + unsigned int has_ir_i2c:1; + + unsigned char xclk, i2c_speed; + unsigned char radio_addr; + unsigned short tvaudio_addr; + + enum em28xx_decoder decoder; + enum em28xx_adecoder adecoder; + + struct em28xx_input input[MAX_EM28XX_INPUT]; + struct em28xx_input radio; + char *ir_codes; + + /* LEDs that need to be controlled explicitly */ + struct em28xx_led *leds; + + /* Buttons */ + const struct em28xx_button *buttons; +}; + +struct em28xx_eeprom { + u8 id[4]; /* 1a eb 67 95 */ + __le16 vendor_ID; + __le16 product_ID; + + __le16 chip_conf; + + __le16 board_conf; + + __le16 string1, string2, string3; + + u8 string_idx_table; +}; + +#define EM28XX_CAPTURE_STREAM_EN 1 + +/* em28xx extensions */ +#define EM28XX_AUDIO 0x10 +#define EM28XX_DVB 0x20 +#define EM28XX_RC 0x30 +#define EM28XX_V4L2 0x40 + +/* em28xx resource types (used for res_get/res_lock etc */ +#define EM28XX_RESOURCE_VIDEO 0x01 +#define EM28XX_RESOURCE_VBI 0x02 + +struct em28xx_v4l2 { + struct kref ref; + struct em28xx *dev; + + struct v4l2_device v4l2_dev; + struct v4l2_ctrl_handler ctrl_handler; + + struct video_device vdev; + struct video_device vbi_dev; + struct video_device radio_dev; + + /* Videobuf2 */ + struct vb2_queue vb_vidq; + struct vb2_queue vb_vbiq; + struct mutex vb_queue_lock; /* Protects vb_vidq */ + struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */ + + u8 vinmode; + u8 vinctl; + + /* Camera specific fields */ + int sensor_xres; + int sensor_yres; + int sensor_xtal; + + int users; /* user count for exclusive use */ + int streaming_users; /* number of actively streaming users */ + + u32 frequency; /* selected tuner frequency */ + + struct em28xx_fmt *format; + v4l2_std_id norm; /* selected tv norm */ + + /* Progressive/interlaced mode */ + bool progressive; + int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ + /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ + + /* Frame properties */ + int width; /* current frame width */ + int height; /* current frame height */ + unsigned int hscale; /* horizontal scale factor (see datasheet) */ + unsigned int vscale; /* vertical scale factor (see datasheet) */ + unsigned int vbi_width; + unsigned int vbi_height; /* lines per field */ + + /* Capture state tracking */ + int capture_type; + bool top_field; + int vbi_read; + unsigned int field_count; + +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_pad video_pad, vbi_pad; + struct media_entity *decoder; +#endif +}; + +struct em28xx_audio { + char name[50]; + unsigned int num_urb; + char **transfer_buffer; + struct urb **urb; + struct usb_device *udev; + unsigned int capture_transfer_done; + struct snd_pcm_substream *capture_pcm_substream; + + unsigned int hwptr_done_capture; + struct snd_card *sndcard; + + size_t period; + + int users; + spinlock_t slock; /* Protects struct em28xx_audio */ + + /* Controls streaming */ + struct work_struct wq_trigger; /* trigger to start/stop audio */ + atomic_t stream_started; /* stream should be running if true */ +}; + +enum em28xx_i2c_algo_type { + EM28XX_I2C_ALGO_EM28XX = 0, + EM28XX_I2C_ALGO_EM2800, + EM28XX_I2C_ALGO_EM25XX_BUS_B, +}; + +struct em28xx_i2c_bus { + struct em28xx *dev; + + unsigned int bus; + enum em28xx_i2c_algo_type algo_type; +}; + +/* main device struct */ +struct em28xx { + struct kref ref; + + // Sub-module data + struct em28xx_v4l2 *v4l2; + struct em28xx_dvb *dvb; + struct em28xx_audio adev; + struct em28xx_IR *ir; + + // generic device properties + int model; // index in the device_data struct + int devno; // marks the number of this device + enum em28xx_chip_id chip_id; + + unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge + unsigned int disconnected:1; // device has been disconnected + unsigned int has_video:1; + unsigned int is_audio_only:1; + unsigned int is_webcam:1; + unsigned int has_msp34xx:1; + unsigned int i2c_speed:2; + enum em28xx_int_audio_type int_audio_type; + enum em28xx_usb_audio_type usb_audio_type; + unsigned char name[32]; + + struct em28xx_board board; + + enum em28xx_sensor em28xx_sensor; // camera specific + + // Some older em28xx chips needs a waiting time after writing + unsigned int wait_after_write; + + struct list_head devlist; + + u32 i2s_speed; // I2S speed for audio digital stream + + struct em28xx_audio_mode audio_mode; + + int tuner_type; // type of the tuner + + // i2c i/o + struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; + struct i2c_client i2c_client[NUM_I2C_BUSES]; + struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; + + unsigned char eeprom_addrwidth_16bit:1; + unsigned int def_i2c_bus; // Default I2C bus + unsigned int cur_i2c_bus; // Current I2C bus + struct rt_mutex i2c_bus_lock; + + // video for linux + unsigned int ctl_input; // selected input + unsigned int ctl_ainput;// selected audio input + unsigned int ctl_aoutput;// selected audio output + enum em28xx_amux amux_map[MAX_EM28XX_INPUT]; + + int mute; + int volume; + + unsigned long hash; // eeprom hash - for boards with generic ID + unsigned long i2c_hash; // i2c devicelist hash - + // for boards with generic ID + + struct work_struct request_module_wk; + + // locks + struct mutex lock; /* protects em28xx struct */ + struct mutex ctrl_urb_lock; /* protects urb_buf */ + + // resources in use + unsigned int resources; + + // eeprom content + u8 *eedata; + u16 eedata_len; + + // Isoc control struct + struct em28xx_dmaqueue vidq; + struct em28xx_dmaqueue vbiq; + struct em28xx_usb_ctl usb_ctl; + + spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */ + + // usb transfer + struct usb_interface *intf; // the usb interface + u8 ifnum; // number of the assigned usb interface + u8 analog_ep_isoc; // address of isoc endpoint for analog + u8 analog_ep_bulk; // address of bulk endpoint for analog + u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2 + u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2 + u8 dvb_ep_isoc; // address of isoc endpoint for DVB + u8 dvb_ep_bulk; // address of bulk endpoint for DVB + int alt; // alternate setting + int max_pkt_size; // max packet size of the selected ep at alt + int packet_multiplier; // multiplier for wMaxPacketSize, used for + // URB buffer size definition + int num_alt; // number of alternative settings + unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize + unsigned int analog_xfer_bulk:1; // use bulk instead of isoc + // transfers for analog + int dvb_alt_isoc; // alternate setting for DVB isoc transfers + unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the + // selected DVB ep at dvb_alt + unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the + // selected DVB ep at dvb_alt + unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc + // transfers for DVB + char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer + + // helper funcs that call usb_control_msg + int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, + char *buf, int len); + int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); + int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, + char *buf, int len); + int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, + char *buf, int len); + int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); + + enum em28xx_mode mode; + + // Button state polling + struct delayed_work buttons_query_work; + u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; + u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; + u8 num_button_polling_addresses; + u16 button_polling_interval; // [ms] + // Snapshot button input device + char snapshot_button_path[30]; // path of the input dev + struct input_dev *sbutton_input_dev; + +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device *media_dev; + struct media_entity input_ent[MAX_EM28XX_INPUT]; + struct media_pad input_pad[MAX_EM28XX_INPUT]; +#endif + + struct em28xx *dev_next; + int ts; +}; + +#define kref_to_dev(d) container_of(d, struct em28xx, ref) + +struct em28xx_ops { + struct list_head next; + char *name; + int id; + int (*init)(struct em28xx *dev); + int (*fini)(struct em28xx *dev); + int (*suspend)(struct em28xx *dev); + int (*resume)(struct em28xx *dev); +}; + +/* Provided by em28xx-i2c.c */ +void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus); +int em28xx_i2c_register(struct em28xx *dev, unsigned int bus, + enum em28xx_i2c_algo_type algo_type); +int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus); + +/* Provided by em28xx-core.c */ +int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, + char *buf, int len); +int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); +int em28xx_read_reg(struct em28xx *dev, u16 reg); +int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, + int len); +int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); +int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); +int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, + u8 bitmask); +int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); + +int em28xx_read_ac97(struct em28xx *dev, u8 reg); +int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); + +int em28xx_audio_analog_set(struct em28xx *dev); +int em28xx_audio_setup(struct em28xx *dev); + +const struct em28xx_led *em28xx_find_led(struct em28xx *dev, + enum em28xx_led_role role); +int em28xx_capture_start(struct em28xx *dev, int start); +int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, + int num_bufs, int max_pkt_size, int packet_multiplier); +int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, + int xfer_bulk, + int num_bufs, int max_pkt_size, int packet_multiplier, + int (*urb_data_copy) + (struct em28xx *dev, struct urb *urb)); +void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); +void em28xx_stop_urbs(struct em28xx *dev); +int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); +int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio); +int em28xx_register_extension(struct em28xx_ops *dev); +void em28xx_unregister_extension(struct em28xx_ops *dev); +void em28xx_init_extension(struct em28xx *dev); +void em28xx_close_extension(struct em28xx *dev); +int em28xx_suspend_extension(struct em28xx *dev); +int em28xx_resume_extension(struct em28xx *dev); + +/* Provided by em28xx-cards.c */ +extern const struct em28xx_board em28xx_boards[]; +extern struct usb_device_id em28xx_id_table[]; +int em28xx_tuner_callback(void *ptr, int component, int command, int arg); +void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); +void em28xx_free_device(struct kref *ref); + +/* Provided by em28xx-camera.c */ +int em28xx_detect_sensor(struct em28xx *dev); +int em28xx_init_camera(struct em28xx *dev); + +#endif |