--- /dev/null
+/*
+ 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@infradead.org>
+ Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
+
+ Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _EM28XX_H
+#define _EM28XX_H
+
+#define EM28XX_VERSION "0.2.1"
+#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-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
+#include <media/ir-kbd-i2c.h>
+#include <media/rc-core.h>
+#include "tuner-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
+
+/* 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 4 /*FIXME: should be bigger */
+
+/* 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 384
+
+#define EM28XX_INTERLACED_DEFAULT 1
+
+/*
+ * Time in msecs to wait for i2c xfers to finish.
+ * 35ms is the maximum time a SMBUS device could wait when
+ * clock stretching is used. As the transfer itself will take
+ * some time to happen, set it to 35 ms.
+ *
+ * Ok, I2C doesn't specify any limit. So, eventually, we may need
+ * to increase this timeout.
+ *
+ * FIXME: this assumes that an I2C message is not longer than 1ms.
+ * This is actually dependent on the I2C bus speed, although most
+ * devices use a 100kHz clock. So, this assumtion is true most of
+ * the time.
+ */
+#define EM28XX_I2C_XFER_TIMEOUT 36
+
+/* 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
+
+enum em28xx_mode {
+ EM28XX_SUSPEND,
+ EM28XX_ANALOG_MODE,
+ EM28XX_DIGITAL_MODE,
+};
+
+struct em28xx;
+
+struct em28xx_usb_bufs {
+ /* max packet size of isoc transaction */
+ int max_pkt_size;
+
+ /* number of packets in each buffer */
+ int num_packets;
+
+ /* number of allocated urbs */
+ int num_bufs;
+
+ /* urb for isoc/bulk transfers */
+ struct urb **urb;
+
+ /* transfer buffers for isoc/bulk transfer */
+ char **transfer_buffer;
+};
+
+struct em28xx_usb_ctl {
+ /* isoc/bulk transfer buffers for analog mode */
+ struct em28xx_usb_bufs analog_bufs;
+
+ /* isoc/bulk transfer buffers for digital mode */
+ struct em28xx_usb_bufs digital_bufs;
+
+ /* Stores already requested buffers */
+ struct em28xx_buffer *vid_buf;
+ struct em28xx_buffer *vbi_buf;
+
+ /* copy data from URB */
+ int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
+
+};
+
+/* Struct to enumberate video formats */
+struct em28xx_fmt {
+ char *name;
+ u32 fourcc; /* v4l2 format id */
+ int depth;
+ int reg;
+};
+
+/* buffer for one video frame */
+struct em28xx_buffer {
+ /* common v4l buffer stuff -- must be first */
+ struct vb2_buffer vb;
+ struct list_head list;
+
+ void *mem;
+ unsigned int length;
+ int top_field;
+
+ /* counter to control buffer fill */
+ unsigned int pos;
+ /* NOTE; in interlaced mode, this value is reset to zero at
+ * the start of each new field (not frame !) */
+
+ /* pointer to vmalloc memory address in vb */
+ 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_COMPOSITE1 = 1,
+ EM28XX_VMUX_COMPOSITE2,
+ EM28XX_VMUX_COMPOSITE3,
+ EM28XX_VMUX_COMPOSITE4,
+ EM28XX_VMUX_SVIDEO,
+ EM28XX_VMUX_TELEVISION,
+ EM28XX_VMUX_CABLE,
+ EM28XX_VMUX_DVB,
+ EM28XX_VMUX_DEBUG,
+ 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,
+};
+
+/* em28xx has two audio inputs: tuner and line in.
+ However, on most devices, an auxiliary AC97 codec device is used.
+ The AC97 device may have several different inputs and outputs,
+ depending on their model. So, it is possible to use AC97 mixer to
+ address more than two different entries.
+ */
+enum em28xx_amux {
+ /* This is the only entry for em28xx tuner input */
+ EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */
+
+ EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */
+
+ /* Some less-common mixer setups */
+ EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */
+ EM28XX_AMUX_PHONE,
+ EM28XX_AMUX_MIC,
+ EM28XX_AMUX_CD,
+ EM28XX_AMUX_AUX,
+ EM28XX_AMUX_PCM_OUT,
+};
+
+enum em28xx_aout {
+ /* AC97 outputs */
+ EM28XX_AOUT_MASTER = 1 << 0,
+ EM28XX_AOUT_LINE = 1 << 1,
+ EM28XX_AOUT_MONO = 1 << 2,
+ EM28XX_AOUT_LFE = 1 << 3,
+ EM28XX_AOUT_SURR = 1 << 4,
+
+ /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
+ EM28XX_AOUT_PCM_IN = 1 << 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;
+ 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_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 def_i2c_bus; /* Default I2C bus */
+
+ /* i2c flags */
+ unsigned int tda9887_conf;
+
+ /* GPIO sequences */
+ struct em28xx_reg_seq *dvb_gpio;
+ struct em28xx_reg_seq *suspend_gpio;
+ struct em28xx_reg_seq *tuner_gpio;
+ 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 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 */
+ 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 v4l2_clk *clk;
+
+ 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;
+ struct mutex vb_vbi_queue_lock;
+
+ 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 hscale; /* horizontal scale factor (see datasheet) */
+ unsigned 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;
+};
+
+struct em28xx_audio {
+ char name[50];
+ unsigned 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;
+
+ /* Controls streaming */
+ struct work_struct wq_trigger; /* trigger to start/stop audio */
+ atomic_t stream_started; /* stream should be running if true */
+};
+
+struct em28xx;
+
+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 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 */
+ char name[30]; /* name (including minor) of the device */
+ 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 char disconnected:1; /* device has been diconnected */
+ unsigned int has_video:1;
+ unsigned int is_audio_only:1;
+ enum em28xx_int_audio_type int_audio_type;
+ enum em28xx_usb_audio_type usb_audio_type;
+
+ 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 def_i2c_bus; /* Default I2C bus */
+ unsigned 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 */
+ 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;
+ 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;
+
+ /* usb transfer */
+ struct usb_device *udev; /* the usb device */
+ 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; /* 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_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;
+};
+
+#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 *);
+ int (*fini)(struct em28xx *);
+ int (*suspend)(struct em28xx *);
+ int (*resume)(struct em28xx *);
+};
+
+/* Provided by em28xx-i2c.c */
+void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus);
+int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
+ enum em28xx_i2c_algo_type algo_type);
+int em28xx_i2c_unregister(struct em28xx *dev, unsigned 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, 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 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);
+
+/* printk macros */
+
+#define em28xx_err(fmt, arg...) do {\
+ printk(KERN_ERR fmt , ##arg); } while (0)
+
+#define em28xx_errdev(fmt, arg...) do {\
+ printk(KERN_ERR "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+
+#define em28xx_info(fmt, arg...) do {\
+ printk(KERN_INFO "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+#define em28xx_warn(fmt, arg...) do {\
+ printk(KERN_WARNING "%s: "fmt,\
+ dev->name , ##arg); } while (0)
+
+#endif
Code Review / kvmfornfv.git / blobdiff