aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/usb/em28xx/em28xx.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
-rw-r--r--drivers/media/usb/em28xx/em28xx.h809
1 files changed, 809 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
new file mode 100644
index 000000000000..8757523e6863
--- /dev/null
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -0,0 +1,809 @@
+/*
+ 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>
+
+ 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
+
+#include <linux/workqueue.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+
+#include <media/videobuf-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/ir-kbd-i2c.h>
+#include <media/rc-core.h>
+#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
+#include <media/videobuf-dvb.h>
+#endif
+#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 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
+
+/* 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
+
+/* 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_PACKETS 64
+#define EM28XX_DVB_MAX_PACKETS 64
+
+#define EM28XX_INTERLACED_DEFAULT 1
+
+/*
+#define (use usbview if you want to get the other alternate number infos)
+#define
+#define alternate number 2
+#define Endpoint Address: 82
+ Direction: in
+ Attribute: 1
+ Type: Isoc
+ Max Packet Size: 1448
+ Interval: 125us
+
+ alternate number 7
+
+ Endpoint Address: 82
+ Direction: in
+ Attribute: 1
+ Type: Isoc
+ Max Packet Size: 3072
+ Interval: 125us
+*/
+
+/* time to wait when stopping the isoc transfer */
+#define EM28XX_URB_TIMEOUT \
+ msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
+
+/* time in msecs to wait for i2c writes to finish */
+#define EM2800_I2C_WRITE_TIMEOUT 20
+
+enum em28xx_mode {
+ EM28XX_SUSPEND,
+ EM28XX_ANALOG_MODE,
+ EM28XX_DIGITAL_MODE,
+};
+
+
+struct em28xx;
+
+struct em28xx_usb_isoc_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 transfers */
+ struct urb **urb;
+
+ /* transfer buffers for isoc transfer */
+ char **transfer_buffer;
+};
+
+struct em28xx_usb_isoc_ctl {
+ /* isoc transfer buffers for analog mode */
+ struct em28xx_usb_isoc_bufs analog_bufs;
+
+ /* isoc transfer buffers for digital mode */
+ struct em28xx_usb_isoc_bufs digital_bufs;
+
+ /* Stores already requested buffers */
+ struct em28xx_buffer *vid_buf;
+ struct em28xx_buffer *vbi_buf;
+
+ /* isoc urb callback */
+ int (*isoc_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 videobuf_buffer vb;
+
+ struct list_head frame;
+ int top_field;
+};
+
+struct em28xx_dmaqueue {
+ struct list_head active;
+
+ wait_queue_head_t wq;
+
+ /* Counters to control buffer fill */
+ int pos;
+};
+
+/* 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;
+
+ u16 ac97_feat;
+ u32 ac97_vendor_id;
+
+ unsigned int has_audio:1;
+
+ unsigned int i2s_3rates:1;
+ unsigned int i2s_5rates:1;
+};
+
+/* 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,
+};
+
+enum em28xx_adecoder {
+ EM28XX_NOADECODER = 0,
+ EM28XX_TVAUDIO,
+};
+
+struct em28xx_board {
+ char *name;
+ int vchannels;
+ int tuner_type;
+ int tuner_addr;
+
+ /* 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 has_snapshot_button: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;
+};
+
+struct em28xx_eeprom {
+ u32 id; /* 0x9567eb1a */
+ u16 vendor_ID;
+ u16 product_ID;
+
+ u16 chip_conf;
+
+ u16 board_conf;
+
+ u16 string1, string2, string3;
+
+ u8 string_idx_table;
+};
+
+/* device states */
+enum em28xx_dev_state {
+ DEV_INITIALIZED = 0x01,
+ DEV_DISCONNECTED = 0x02,
+ DEV_MISCONFIGURED = 0x04,
+};
+
+#define EM28XX_AUDIO_BUFS 5
+#define EM28XX_NUM_AUDIO_PACKETS 64
+#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
+#define EM28XX_CAPTURE_STREAM_EN 1
+
+/* em28xx extensions */
+#define EM28XX_AUDIO 0x10
+#define EM28XX_DVB 0x20
+#define EM28XX_RC 0x30
+
+/* em28xx resource types (used for res_get/res_lock etc */
+#define EM28XX_RESOURCE_VIDEO 0x01
+#define EM28XX_RESOURCE_VBI 0x02
+
+struct em28xx_audio {
+ char name[50];
+ char *transfer_buffer[EM28XX_AUDIO_BUFS];
+ struct urb *urb[EM28XX_AUDIO_BUFS];
+ 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;
+
+ int users;
+ spinlock_t slock;
+};
+
+struct em28xx;
+
+struct em28xx_fh {
+ struct em28xx *dev;
+ int radio;
+ unsigned int resources;
+
+ struct videobuf_queue vb_vidq;
+ struct videobuf_queue vb_vbiq;
+
+ enum v4l2_buf_type type;
+};
+
+/* main device struct */
+struct em28xx {
+ /* 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;
+
+ int audio_ifnum;
+
+ struct v4l2_device v4l2_dev;
+ struct em28xx_board board;
+
+ /* Webcam specific fields */
+ enum em28xx_sensor em28xx_sensor;
+ int sensor_xres, sensor_yres;
+ int sensor_xtal;
+
+ /* Allows progressive (e. g. non-interlaced) mode */
+ int progressive;
+
+ /* Vinmode/Vinctl used at the driver */
+ int vinmode, vinctl;
+
+ unsigned int has_audio_class:1;
+ unsigned int has_alsa_audio:1;
+ unsigned int is_audio_only:1;
+
+ /* Controls audio streaming */
+ struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */
+ atomic_t stream_started; /* stream should be running if true */
+
+ struct em28xx_fmt *format;
+
+ struct em28xx_IR *ir;
+
+ /* 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 */
+ int tuner_addr; /* tuner address */
+ int tda9887_conf;
+ /* i2c i/o */
+ struct i2c_adapter i2c_adap;
+ struct i2c_client i2c_client;
+ /* video for linux */
+ int users; /* user count for exclusive use */
+ struct video_device *vdev; /* video for linux device struct */
+ v4l2_std_id norm; /* selected tv norm */
+ int ctl_freq; /* selected frequency */
+ unsigned int ctl_input; /* selected input */
+ unsigned int ctl_ainput;/* selected audio input */
+ unsigned int ctl_aoutput;/* selected audio output */
+ int mute;
+ int volume;
+ /* 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) */
+ int interlaced; /* 1=interlace fileds, 0=just top fileds */
+ unsigned int video_bytesread; /* Number of bytes read */
+
+ unsigned long hash; /* eeprom hash - for boards with generic ID */
+ unsigned long i2c_hash; /* i2c devicelist hash -
+ for boards with generic ID */
+
+ struct em28xx_audio adev;
+
+ /* states */
+ enum em28xx_dev_state state;
+
+ /* vbi related state tracking */
+ int capture_type;
+ int vbi_read;
+ unsigned char cur_field;
+ unsigned int vbi_width;
+ unsigned int vbi_height; /* lines per field */
+
+ struct work_struct request_module_wk;
+
+ /* locks */
+ struct mutex lock;
+ struct mutex ctrl_urb_lock; /* protects urb_buf */
+ /* spinlock_t queue_lock; */
+ struct list_head inqueue, outqueue;
+ struct video_device *vbi_dev;
+ struct video_device *radio_dev;
+
+ /* resources in use */
+ unsigned int resources;
+
+ unsigned char eedata[256];
+
+ /* Isoc control struct */
+ struct em28xx_dmaqueue vidq;
+ struct em28xx_dmaqueue vbiq;
+ struct em28xx_usb_isoc_ctl isoc_ctl;
+ spinlock_t slock;
+
+ /* usb transfer */
+ struct usb_device *udev; /* the usb device */
+ int alt; /* alternate */
+ int max_pkt_size; /* max packet size of isoc transaction */
+ int num_alt; /* Number of alternative settings */
+ unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
+ int dvb_alt; /* alternate for DVB */
+ unsigned int dvb_max_pkt_size; /* wMaxPacketSize 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;
+
+ /* register numbers for GPO/GPIO registers */
+ u16 reg_gpo_num, reg_gpio_num;
+
+ /* Caches GPO and GPIO registers */
+ unsigned char reg_gpo, reg_gpio;
+
+ /* Snapshot button */
+ char snapshot_button_path[30]; /* path of the input dev */
+ struct input_dev *sbutton_input_dev;
+ struct delayed_work sbutton_query_work;
+
+ struct em28xx_dvb *dvb;
+
+ /* I2C keyboard data */
+ struct IR_i2c_init_data init_data;
+};
+
+struct em28xx_ops {
+ struct list_head next;
+ char *name;
+ int id;
+ int (*init)(struct em28xx *);
+ int (*fini)(struct em28xx *);
+};
+
+/* Provided by em28xx-i2c.c */
+void em28xx_do_i2c_scan(struct em28xx *dev);
+int em28xx_i2c_register(struct em28xx *dev);
+int em28xx_i2c_unregister(struct em28xx *dev);
+
+/* Provided by em28xx-core.c */
+
+u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
+void em28xx_queue_unusedframes(struct em28xx *dev);
+void em28xx_release_buffers(struct em28xx *dev);
+
+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_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);
+
+int em28xx_colorlevels_set_default(struct em28xx *dev);
+int em28xx_capture_start(struct em28xx *dev, int start);
+int em28xx_vbi_supported(struct em28xx *dev);
+int em28xx_set_outfmt(struct em28xx *dev);
+int em28xx_resolution_set(struct em28xx *dev);
+int em28xx_set_alternate(struct em28xx *dev);
+int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
+ int max_packets, int num_bufs, int max_pkt_size);
+int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
+ int max_packets, int num_bufs, int max_pkt_size,
+ int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
+void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
+void em28xx_stop_urbs(struct em28xx *dev);
+int em28xx_isoc_dvb_max_packetsize(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);
+void em28xx_wake_i2c(struct em28xx *dev);
+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);
+
+/* Provided by em28xx-video.c */
+int em28xx_register_analog_devices(struct em28xx *dev);
+void em28xx_release_analog_resources(struct em28xx *dev);
+
+/* Provided by em28xx-cards.c */
+extern int em2800_variant_detect(struct usb_device *udev, int model);
+extern struct em28xx_board em28xx_boards[];
+extern struct usb_device_id em28xx_id_table[];
+extern const unsigned int em28xx_bcount;
+int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
+void em28xx_release_resources(struct em28xx *dev);
+
+/* Provided by em28xx-vbi.c */
+extern struct videobuf_queue_ops em28xx_vbi_qops;
+
+/* 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)
+
+static inline int em28xx_compression_disable(struct em28xx *dev)
+{
+ /* side effect of disabling scaler and mixer */
+ return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
+}
+
+static inline int em28xx_contrast_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
+}
+
+static inline int em28xx_brightness_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
+}
+
+static inline int em28xx_saturation_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
+}
+
+static inline int em28xx_u_balance_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
+}
+
+static inline int em28xx_v_balance_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
+}
+
+static inline int em28xx_gamma_get(struct em28xx *dev)
+{
+ return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
+}
+
+static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
+}
+
+static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
+}
+
+static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
+{
+ u8 tmp = (u8) val;
+ return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
+}
+
+/*FIXME: maxw should be dependent of alt mode */
+static inline unsigned int norm_maxw(struct em28xx *dev)
+{
+ if (dev->board.is_webcam)
+ return dev->sensor_xres;
+
+ if (dev->board.max_range_640_480)
+ return 640;
+
+ return 720;
+}
+
+static inline unsigned int norm_maxh(struct em28xx *dev)
+{
+ if (dev->board.is_webcam)
+ return dev->sensor_yres;
+
+ if (dev->board.max_range_640_480)
+ return 480;
+
+ return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
+}
+#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.