- 根目录:
- drivers
- staging
- media
- easycap
- easycap.h
/*****************************************************************************
* *
* easycap.h *
* *
*****************************************************************************/
/*
*
* Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
*
*
* This 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.
*
* The software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
/*
* THE FOLLOWING PARAMETERS ARE UNDEFINED:
*
* EASYCAP_DEBUG
*
* IF REQUIRED THEY MUST BE EXTERNALLY DEFINED, FOR EXAMPLE AS COMPILER
* OPTIONS.
*/
/*---------------------------------------------------------------------------*/
#ifndef __EASYCAP_H__
#define __EASYCAP_H__
/*---------------------------------------------------------------------------*/
/*
* THESE ARE NORMALLY DEFINED
*/
/*---------------------------------------------------------------------------*/
#define PATIENCE 500
#define PERSEVERE
/*---------------------------------------------------------------------------*/
/*
* THESE ARE FOR MAINTENANCE ONLY - NORMALLY UNDEFINED:
*/
/*---------------------------------------------------------------------------*/
#undef EASYCAP_TESTCARD
/*---------------------------------------------------------------------------*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kref.h>
#include <linux/usb.h>
#include <linux/uaccess.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/poll.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
#include <linux/sound.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/info.h>
#include <sound/initval.h>
#include <sound/control.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <linux/videodev2.h>
#include <linux/soundcard.h>
/*---------------------------------------------------------------------------*/
/* VENDOR, PRODUCT: Syntek Semiconductor Co., Ltd
*
* EITHER EasyCAP USB 2.0 Video Adapter with Audio, Model No. DC60
* with input cabling: AUDIO(L), AUDIO(R), CVBS, S-VIDEO.
*
* OR EasyCAP 4CHANNEL USB 2.0 DVR, Model No. EasyCAP002
* with input cabling: MICROPHONE, CVBS1, CVBS2, CVBS3, CVBS4.
*/
/*---------------------------------------------------------------------------*/
#define USB_EASYCAP_VENDOR_ID 0x05e1
#define USB_EASYCAP_PRODUCT_ID 0x0408
#define EASYCAP_DRIVER_VERSION "0.9.01"
#define EASYCAP_DRIVER_DESCRIPTION "easycapdc60"
#define DONGLE_MANY 8
#define INPUT_MANY 6
/*---------------------------------------------------------------------------*/
/*
* DEFAULT LUMINANCE, CONTRAST, SATURATION AND HUE
*/
/*---------------------------------------------------------------------------*/
#define SAA_0A_DEFAULT 0x7F
#define SAA_0B_DEFAULT 0x3F
#define SAA_0C_DEFAULT 0x2F
#define SAA_0D_DEFAULT 0x00
/*---------------------------------------------------------------------------*/
/*
* VIDEO STREAMING PARAMETERS:
* USB 2.0 PROVIDES FOR HIGH-BANDWIDTH ENDPOINTS WITH AN UPPER LIMIT
* OF 3072 BYTES PER MICROFRAME for wMaxPacketSize.
*/
/*---------------------------------------------------------------------------*/
#define VIDEO_ISOC_BUFFER_MANY 16
#define VIDEO_ISOC_ORDER 3
#define VIDEO_ISOC_FRAMESPERDESC ((unsigned int) 1 << VIDEO_ISOC_ORDER)
#define USB_2_0_MAXPACKETSIZE 3072
#if (USB_2_0_MAXPACKETSIZE > PAGE_SIZE)
#error video_isoc_buffer[.] will not be big enough
#endif
#define VIDEO_JUNK_TOLERATE VIDEO_ISOC_BUFFER_MANY
#define VIDEO_LOST_TOLERATE 50
/*---------------------------------------------------------------------------*/
/*
* VIDEO BUFFERS
*/
/*---------------------------------------------------------------------------*/
#define FIELD_BUFFER_SIZE (203 * PAGE_SIZE)
#define FRAME_BUFFER_SIZE (405 * PAGE_SIZE)
#define FIELD_BUFFER_MANY 4
#define FRAME_BUFFER_MANY 6
/*---------------------------------------------------------------------------*/
/*
* AUDIO STREAMING PARAMETERS
*/
/*---------------------------------------------------------------------------*/
#define AUDIO_ISOC_BUFFER_MANY 16
#define AUDIO_ISOC_ORDER 1
#define AUDIO_ISOC_FRAMESPERDESC 32
#define AUDIO_ISOC_BUFFER_SIZE (PAGE_SIZE << AUDIO_ISOC_ORDER)
/*---------------------------------------------------------------------------*/
/*
* AUDIO BUFFERS
*/
/*---------------------------------------------------------------------------*/
#define AUDIO_FRAGMENT_MANY 32
#define PAGES_PER_AUDIO_FRAGMENT 4
/*---------------------------------------------------------------------------*/
/*
* IT IS ESSENTIAL THAT EVEN-NUMBERED STANDARDS ARE 25 FRAMES PER SECOND,
* ODD-NUMBERED STANDARDS ARE 30 FRAMES PER SECOND.
* THE NUMBERING OF STANDARDS MUST NOT BE CHANGED WITHOUT DUE CARE. NOT
* ONLY MUST THE PARAMETER
* STANDARD_MANY
* BE CHANGED TO CORRESPOND TO THE NEW NUMBER OF STANDARDS, BUT ALSO THE
* NUMBERING MUST REMAIN AN UNBROKEN ASCENDING SEQUENCE: DUMMY STANDARDS
* MAY NEED TO BE ADDED. APPROPRIATE CHANGES WILL ALWAYS BE REQUIRED IN
* ROUTINE fillin_formats() AND POSSIBLY ELSEWHERE. BEWARE.
*/
/*---------------------------------------------------------------------------*/
#define PAL_BGHIN 0
#define PAL_Nc 2
#define SECAM 4
#define NTSC_N 6
#define NTSC_N_443 8
#define NTSC_M 1
#define NTSC_443 3
#define NTSC_M_JP 5
#define PAL_60 7
#define PAL_M 9
#define PAL_BGHIN_SLOW 10
#define PAL_Nc_SLOW 12
#define SECAM_SLOW 14
#define NTSC_N_SLOW 16
#define NTSC_N_443_SLOW 18
#define NTSC_M_SLOW 11
#define NTSC_443_SLOW 13
#define NTSC_M_JP_SLOW 15
#define PAL_60_SLOW 17
#define PAL_M_SLOW 19
#define STANDARD_MANY 20
/*---------------------------------------------------------------------------*/
/*
* ENUMS
*/
/*---------------------------------------------------------------------------*/
enum {
AT_720x576,
AT_704x576,
AT_640x480,
AT_720x480,
AT_360x288,
AT_320x240,
AT_360x240,
RESOLUTION_MANY
};
enum {
FMT_UYVY,
FMT_YUY2,
FMT_RGB24,
FMT_RGB32,
FMT_BGR24,
FMT_BGR32,
PIXELFORMAT_MANY
};
enum {
FIELD_NONE,
FIELD_INTERLACED,
INTERLACE_MANY
};
#define SETTINGS_MANY (STANDARD_MANY * \
RESOLUTION_MANY * \
2 * \
PIXELFORMAT_MANY * \
INTERLACE_MANY)
/*---------------------------------------------------------------------------*/
/*
* STRUCTURE DEFINITIONS
*/
/*---------------------------------------------------------------------------*/
struct easycap_dongle {
struct easycap *peasycap;
struct mutex mutex_video;
struct mutex mutex_audio;
};
/*---------------------------------------------------------------------------*/
struct data_buffer {
struct list_head list_head;
void *pgo;
void *pto;
u16 kount;
u16 input;
};
/*---------------------------------------------------------------------------*/
struct data_urb {
struct list_head list_head;
struct urb *purb;
int isbuf;
int length;
};
/*---------------------------------------------------------------------------*/
struct easycap_standard {
u16 mask;
struct v4l2_standard v4l2_standard;
};
struct easycap_format {
u16 mask;
char name[128];
struct v4l2_format v4l2_format;
};
struct inputset {
int input;
int input_ok;
int standard_offset;
int standard_offset_ok;
int format_offset;
int format_offset_ok;
int brightness;
int brightness_ok;
int contrast;
int contrast_ok;
int saturation;
int saturation_ok;
int hue;
int hue_ok;
};
/*---------------------------------------------------------------------------*/
/*
* easycap.ilk == 0 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=256
* easycap.ilk == 2 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=9
* easycap.ilk == 3 => FOUR-CVBS HARDWARE, AUDIO wMaxPacketSize=9
*/
/*---------------------------------------------------------------------------*/
struct easycap {
int isdongle;
int minor;
struct video_device video_device;
struct v4l2_device v4l2_device;
int status;
unsigned int audio_pages_per_fragment;
unsigned int audio_bytes_per_fragment;
unsigned int audio_buffer_page_many;
#define UPSAMPLE
#ifdef UPSAMPLE
s16 oldaudio;
#endif /*UPSAMPLE*/
int ilk;
bool microphone;
struct usb_device *pusb_device;
struct usb_interface *pusb_interface;
struct kref kref;
int queued[FRAME_BUFFER_MANY];
int done[FRAME_BUFFER_MANY];
wait_queue_head_t wq_video;
wait_queue_head_t wq_audio;
wait_queue_head_t wq_trigger;
int input;
int polled;
int standard_offset;
int format_offset;
struct inputset inputset[INPUT_MANY];
bool ntsc;
int fps;
int usec;
int tolerate;
int skip;
int skipped;
int lost[INPUT_MANY];
int merit[180];
int video_interface;
int video_altsetting_on;
int video_altsetting_off;
int video_endpointnumber;
int video_isoc_maxframesize;
int video_isoc_buffer_size;
int video_isoc_framesperdesc;
int video_isoc_streaming;
int video_isoc_sequence;
int video_idle;
int video_eof;
int video_junk;
struct data_buffer video_isoc_buffer[VIDEO_ISOC_BUFFER_MANY];
struct data_buffer field_buffer[FIELD_BUFFER_MANY]
[(FIELD_BUFFER_SIZE/PAGE_SIZE)];
struct data_buffer frame_buffer[FRAME_BUFFER_MANY]
[(FRAME_BUFFER_SIZE/PAGE_SIZE)];
struct list_head urb_video_head;
struct list_head *purb_video_head;
u8 cache[8];
u8 *pcache;
int video_mt;
int audio_mt;
u32 isequence;
int vma_many;
/*---------------------------------------------------------------------------*/
/*
* BUFFER INDICATORS
*/
/*---------------------------------------------------------------------------*/
int field_fill; /* Field buffer being filled by easycap_complete(). */
/* Bumped only by easycap_complete(). */
int field_page; /* Page of field buffer page being filled by */
/* easycap_complete(). */
int field_read; /* Field buffer to be read by field2frame(). */
/* Bumped only by easycap_complete(). */
int frame_fill; /* Frame buffer being filled by field2frame(). */
/* Bumped only by easycap_dqbuf() when */
/* field2frame() has created a complete frame. */
int frame_read; /* Frame buffer offered to user by DQBUF. */
/* Set only by easycap_dqbuf() to trail frame_fill.*/
int frame_lock; /* Flag set to 1 by DQBUF and cleared by QBUF */
/*---------------------------------------------------------------------------*/
/*
* IMAGE PROPERTIES
*/
/*---------------------------------------------------------------------------*/
u32 pixelformat;
int width;
int height;
int bytesperpixel;
bool byteswaporder;
bool decimatepixel;
bool offerfields;
int frame_buffer_used;
int frame_buffer_many;
int videofieldamount;
int brightness;
int contrast;
int saturation;
int hue;
int allocation_video_urb;
int allocation_video_page;
int allocation_video_struct;
int registered_video;
/*---------------------------------------------------------------------------*/
/*
* ALSA
*/
/*---------------------------------------------------------------------------*/
struct snd_pcm_hardware alsa_hardware;
struct snd_card *psnd_card;
struct snd_pcm *psnd_pcm;
struct snd_pcm_substream *psubstream;
int dma_fill;
int dma_next;
int dma_read;
/*---------------------------------------------------------------------------*/
/*
* SOUND PROPERTIES
*/
/*---------------------------------------------------------------------------*/
int audio_interface;
int audio_altsetting_on;
int audio_altsetting_off;
int audio_endpointnumber;
int audio_isoc_maxframesize;
int audio_isoc_buffer_size;
int audio_isoc_framesperdesc;
int audio_isoc_streaming;
int audio_idle;
int audio_eof;
int volume;
int mute;
s8 gain;
struct data_buffer audio_isoc_buffer[AUDIO_ISOC_BUFFER_MANY];
struct list_head urb_audio_head;
struct list_head *purb_audio_head;
/*---------------------------------------------------------------------------*/
/*
* BUFFER INDICATORS
*/
/*---------------------------------------------------------------------------*/
int audio_fill; /* Audio buffer being filled by easycap_complete(). */
/* Bumped only by easycap_complete(). */
int audio_read; /* Audio buffer page being read by easycap_read(). */
/* Set by easycap_read() to trail audio_fill by */
/* one fragment. */
/*---------------------------------------------------------------------------*/
/*
* SOUND PROPERTIES
*/
/*---------------------------------------------------------------------------*/
int allocation_audio_urb;
int allocation_audio_page;
int allocation_audio_struct;
int registered_audio;
long long int audio_sample;
long long int audio_niveau;
long long int audio_square;
struct data_buffer audio_buffer[];
};
/*---------------------------------------------------------------------------*/
/*
* VIDEO FUNCTION PROTOTYPES
*/
/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
int easycap_newinput(struct easycap *, int);
void easycap_testcard(struct easycap *, int);
int easycap_isdongle(struct easycap *);
long easycap_unlocked_ioctl(struct file *, unsigned int, unsigned long);
int easycap_video_dqbuf(struct easycap *, int);
int easycap_video_submit_urbs(struct easycap *);
int easycap_video_kill_urbs(struct easycap *);
int easycap_video_fillin_formats(void);
int adjust_standard(struct easycap *, v4l2_std_id);
int adjust_format(struct easycap *, u32, u32, u32, int, bool);
int adjust_brightness(struct easycap *, int);
int adjust_contrast(struct easycap *, int);
int adjust_saturation(struct easycap *, int);
int adjust_hue(struct easycap *, int);
/*---------------------------------------------------------------------------*/
/*
* AUDIO FUNCTION PROTOTYPES
*/
/*---------------------------------------------------------------------------*/
int easycap_alsa_probe(struct easycap *);
int easycap_audio_kill_urbs(struct easycap *);
void easycap_alsa_complete(struct urb *);
/*---------------------------------------------------------------------------*/
/*
* LOW-LEVEL FUNCTION PROTOTYPES
*/
/*---------------------------------------------------------------------------*/
int easycap_audio_gainset(struct usb_device *, s8);
int easycap_audio_setup(struct easycap *);
int easycap_wakeup_device(struct usb_device *);
int setup_stk(struct usb_device *, bool);
int setup_saa(struct usb_device *, bool);
int ready_saa(struct usb_device *);
int merit_saa(struct usb_device *);
int check_vt(struct usb_device *);
int select_input(struct usb_device *, int, int);
int set_resolution(struct usb_device *, u16, u16, u16, u16);
int read_saa(struct usb_device *, u16);
int write_saa(struct usb_device *, u16, u16);
int start_100(struct usb_device *);
int stop_100(struct usb_device *);
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/*
* MACROS SAM(...) AND JOM(...) ALLOW DIAGNOSTIC OUTPUT TO BE TAGGED WITH
* THE IDENTITY OF THE DONGLE TO WHICH IT APPLIES, BUT IF INVOKED WHEN THE
* POINTER peasycap IS INVALID AN Oops IS LIKELY, AND ITS CAUSE MAY NOT BE
* IMMEDIATELY OBVIOUS FROM A CASUAL READING OF THE SOURCE CODE. BEWARE.
*/
/*---------------------------------------------------------------------------*/
const char *strerror(int err);
#define SAY(format, args...) do { \
printk(KERN_DEBUG "easycap:: %s: " \
format, __func__, ##args); \
} while (0)
#define SAM(format, args...) do { \
printk(KERN_DEBUG "easycap::%i%s: " \
format, peasycap->isdongle, __func__, ##args);\
} while (0)
#ifdef CONFIG_EASYCAP_DEBUG
extern int easycap_debug;
#define JOT(n, format, args...) do { \
if (n <= easycap_debug) { \
printk(KERN_DEBUG "easycap:: %s: " \
format, __func__, ##args);\
} \
} while (0)
#define JOM(n, format, args...) do { \
if (n <= easycap_debug) { \
printk(KERN_DEBUG "easycap::%i%s: " \
format, peasycap->isdongle, __func__, ##args);\
} \
} while (0)
#else
#define JOT(n, format, args...) do {} while (0)
#define JOM(n, format, args...) do {} while (0)
#endif /* CONFIG_EASYCAP_DEBUG */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* globals
*/
/*---------------------------------------------------------------------------*/
extern bool easycap_readback;
extern const struct easycap_standard easycap_standard[];
extern struct easycap_format easycap_format[];
extern struct v4l2_queryctrl easycap_control[];
extern struct easycap_dongle easycapdc60_dongle[];
#endif /* !__EASYCAP_H__ */