/*************************************************************************** * Video4Linux driver for W996[87]CF JPEG USB Dual Mode Camera Chip. * * * * Copyright (C) 2002-2004 by Luca Risolia <luca.risolia@studio.unibo.it> * * * * 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 _W9968CF_H_ #define _W9968CF_H_ #include <linux/videodev.h> #include <linux/usb.h> #include <linux/i2c.h> #include <linux/device.h> #include <linux/spinlock.h> #include <linux/list.h> #include <linux/wait.h> #include <linux/param.h> #include <linux/types.h> #include <linux/rwsem.h> #include <linux/mutex.h> #include <media/ovcamchip.h> #include "w9968cf_vpp.h" /**************************************************************************** * Default values * ****************************************************************************/ #define W9968CF_OVMOD_LOAD 1 /* automatic 'ovcamchip' module loading */ #define W9968CF_VPPMOD_LOAD 1 /* automatic 'w9968cf-vpp' module loading */ /* Comment/uncomment the following line to enable/disable debugging messages */ #define W9968CF_DEBUG /* These have effect only if W9968CF_DEBUG is defined */ #define W9968CF_DEBUG_LEVEL 2 /* from 0 to 6. 0 for no debug informations */ #define W9968CF_SPECIFIC_DEBUG 0 /* 0 or 1 */ #define W9968CF_MAX_DEVICES 32 #define W9968CF_SIMCAMS W9968CF_MAX_DEVICES /* simultaneous cameras */ #define W9968CF_MAX_BUFFERS 32 #define W9968CF_BUFFERS 2 /* n. of frame buffers from 2 to MAX_BUFFERS */ /* Maximum data payload sizes in bytes for alternate settings */ static const u16 wMaxPacketSize[] = {1023, 959, 895, 831, 767, 703, 639, 575, 511, 447, 383, 319, 255, 191, 127, 63}; #define W9968CF_PACKET_SIZE 1023 /* according to wMaxPacketSizes[] */ #define W9968CF_MIN_PACKET_SIZE 63 /* minimum value */ #define W9968CF_ISO_PACKETS 5 /* n.of packets for isochronous transfers */ #define W9968CF_USB_CTRL_TIMEOUT 1000 /* timeout (ms) for usb control commands */ #define W9968CF_URBS 2 /* n. of scheduled URBs for ISO transfer */ #define W9968CF_I2C_BUS_DELAY 4 /* delay in us for I2C bit r/w operations */ #define W9968CF_I2C_RW_RETRIES 15 /* number of max I2C r/w retries */ /* Available video formats */ struct w9968cf_format { const u16 palette; const u16 depth; const u8 compression; }; static const struct w9968cf_format w9968cf_formatlist[] = { { VIDEO_PALETTE_UYVY, 16, 0 }, /* original video */ { VIDEO_PALETTE_YUV422P, 16, 1 }, /* with JPEG compression */ { VIDEO_PALETTE_YUV420P, 12, 1 }, /* with JPEG compression */ { VIDEO_PALETTE_YUV420, 12, 1 }, /* same as YUV420P */ { VIDEO_PALETTE_YUYV, 16, 0 }, /* software conversion */ { VIDEO_PALETTE_YUV422, 16, 0 }, /* software conversion */ { VIDEO_PALETTE_GREY, 8, 0 }, /* software conversion */ { VIDEO_PALETTE_RGB555, 16, 0 }, /* software conversion */ { VIDEO_PALETTE_RGB565, 16, 0 }, /* software conversion */ { VIDEO_PALETTE_RGB24, 24, 0 }, /* software conversion */ { VIDEO_PALETTE_RGB32, 32, 0 }, /* software conversion */ { 0, 0, 0 } /* 0 is a terminating entry */ }; #define W9968CF_DECOMPRESSION 2 /* decomp:0=disable,1=force,2=any formats */ #define W9968CF_PALETTE_DECOMP_OFF VIDEO_PALETTE_UYVY /* when decomp=0 */ #define W9968CF_PALETTE_DECOMP_FORCE VIDEO_PALETTE_YUV420P /* when decomp=1 */ #define W9968CF_PALETTE_DECOMP_ON VIDEO_PALETTE_UYVY /* when decomp=2 */ #define W9968CF_FORCE_RGB 0 /* read RGB instead of BGR, yes=1/no=0 */ #define W9968CF_MAX_WIDTH 800 /* Has effect if up-scaling is on */ #define W9968CF_MAX_HEIGHT 600 /* Has effect if up-scaling is on */ #define W9968CF_WIDTH 320 /* from 128 to 352, multiple of 16 */ #define W9968CF_HEIGHT 240 /* from 96 to 288, multiple of 16 */ #define W9968CF_CLAMPING 0 /* 0 disable, 1 enable video data clamping */ #define W9968CF_FILTER_TYPE 0 /* 0 disable 1 (1-2-1), 2 (2-3-6-3-2) */ #define W9968CF_DOUBLE_BUFFER 1 /* 0 disable, 1 enable double buffer */ #define W9968CF_LARGEVIEW 1 /* 0 disable, 1 enable */ #define W9968CF_UPSCALING 0 /* 0 disable, 1 enable */ #define W9968CF_MONOCHROME 0 /* 0 not monochrome, 1 monochrome sensor */ #define W9968CF_BRIGHTNESS 31000 /* from 0 to 65535 */ #define W9968CF_HUE 32768 /* from 0 to 65535 */ #define W9968CF_COLOUR 32768 /* from 0 to 65535 */ #define W9968CF_CONTRAST 50000 /* from 0 to 65535 */ #define W9968CF_WHITENESS 32768 /* from 0 to 65535 */ #define W9968CF_AUTOBRIGHT 0 /* 0 disable, 1 enable automatic brightness */ #define W9968CF_AUTOEXP 1 /* 0 disable, 1 enable automatic exposure */ #define W9968CF_LIGHTFREQ 50 /* light frequency. 50Hz (Europe) or 60Hz */ #define W9968CF_BANDINGFILTER 0 /* 0 disable, 1 enable banding filter */ #define W9968CF_BACKLIGHT 0 /* 0 or 1, 1=object is lit from behind */ #define W9968CF_MIRROR 0 /* 0 or 1 [don't] reverse image horizontally*/ #define W9968CF_CLOCKDIV -1 /* -1 = automatic clock divisor */ #define W9968CF_DEF_CLOCKDIVISOR 0 /* default sensor clock divisor value */ /**************************************************************************** * Globals * ****************************************************************************/ #define W9968CF_MODULE_NAME "V4L driver for W996[87]CF JPEG USB " \ "Dual Mode Camera Chip" #define W9968CF_MODULE_VERSION "1:1.33-basic" #define W9968CF_MODULE_AUTHOR "(C) 2002-2004 Luca Risolia" #define W9968CF_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define W9968CF_MODULE_LICENSE "GPL" static const struct usb_device_id winbond_id_table[] = { { /* Creative Labs Video Blaster WebCam Go Plus */ USB_DEVICE(0x041e, 0x4003), .driver_info = (unsigned long)"w9968cf", }, { /* Generic W996[87]CF JPEG USB Dual Mode Camera */ USB_DEVICE(0x1046, 0x9967), .driver_info = (unsigned long)"w9968cf", }, { } /* terminating entry */ }; /* W996[87]CF camera models, internal ids: */ enum w9968cf_model_id { W9968CF_MOD_GENERIC = 1, /* Generic W996[87]CF based device */ W9968CF_MOD_CLVBWGP = 11,/*Creative Labs Video Blaster WebCam Go Plus*/ W9968CF_MOD_ADPVDMA = 21, /* Aroma Digi Pen VGA Dual Mode ADG-5000 */ W9986CF_MOD_AAU = 31, /* AVerMedia AVerTV USB */ W9968CF_MOD_CLVBWG = 34, /* Creative Labs Video Blaster WebCam Go */ W9968CF_MOD_LL = 37, /* Lebon LDC-035A */ W9968CF_MOD_EEEMC = 40, /* Ezonics EZ-802 EZMega Cam */ W9968CF_MOD_OOE = 42, /* OmniVision OV8610-EDE */ W9968CF_MOD_ODPVDMPC = 43,/* OPCOM Digi Pen VGA Dual Mode Pen Camera */ W9968CF_MOD_PDPII = 46, /* Pretec Digi Pen-II */ W9968CF_MOD_PDP480 = 49, /* Pretec DigiPen-480 */ }; enum w9968cf_frame_status { F_READY, /* finished grabbing & ready to be read/synced */ F_GRABBING, /* in the process of being grabbed into */ F_ERROR, /* something bad happened while processing */ F_UNUSED /* unused (no VIDIOCMCAPTURE) */ }; struct w9968cf_frame_t { void* buffer; unsigned long size; u32 length; int number; enum w9968cf_frame_status status; struct w9968cf_frame_t* next; u8 queued; }; enum w9968cf_vpp_flag { VPP_NONE = 0x00, VPP_UPSCALE = 0x01, VPP_SWAP_YUV_BYTES = 0x02, VPP_DECOMPRESSION = 0x04, VPP_UYVY_TO_RGBX = 0x08, }; /* Main device driver structure */ struct w9968cf_device { struct device dev; /* device structure */ enum w9968cf_model_id id; /* private device identifier */ struct video_device* v4ldev; /* -> V4L structure */ struct list_head v4llist; /* entry of the list of V4L cameras */ struct usb_device* usbdev; /* -> main USB structure */ struct urb* urb[W9968CF_URBS]; /* -> USB request block structs */ void* transfer_buffer[W9968CF_URBS]; /* -> ISO transfer buffers */ u16* control_buffer; /* -> buffer for control req.*/ u16* data_buffer; /* -> data to send to the FSB */ struct w9968cf_frame_t frame[W9968CF_MAX_BUFFERS]; struct w9968cf_frame_t frame_tmp; /* temporary frame */ struct w9968cf_frame_t frame_vpp; /* helper frame.*/ struct w9968cf_frame_t* frame_current; /* -> frame being grabbed */ struct w9968cf_frame_t* requested_frame[W9968CF_MAX_BUFFERS]; u8 max_buffers, /* number of requested buffers */ force_palette, /* yes=1/no=0 */ force_rgb, /* read RGB instead of BGR, yes=1, no=0 */ double_buffer, /* hardware double buffering yes=1/no=0 */ clamping, /* video data clamping yes=1/no=0 */ filter_type, /* 0=disabled, 1=3 tap, 2=5 tap filter */ capture, /* 0=disabled, 1=enabled */ largeview, /* 0=disabled, 1=enabled */ decompression, /* 0=disabled, 1=forced, 2=allowed */ upscaling; /* software image scaling, 0=enabled, 1=disabled */ struct video_picture picture; /* current picture settings */ struct video_window window; /* current window settings */ u16 hw_depth, /* depth (used by the chip) */ hw_palette, /* palette (used by the chip) */ hw_width, /* width (used by the chip) */ hw_height, /* height (used by the chip) */ hs_polarity, /* 0=negative sync pulse, 1=positive sync pulse */ vs_polarity, /* 0=negative sync pulse, 1=positive sync pulse */ start_cropx, /* pixels from HS inactive edge to 1st cropped pixel*/ start_cropy; /* pixels from VS inactive edge to 1st cropped pixel*/ enum w9968cf_vpp_flag vpp_flag; /* post-processing routines in use */ u8 nbuffers, /* number of allocated frame buffers */ altsetting, /* camera alternate setting */ disconnected, /* flag: yes=1, no=0 */ misconfigured, /* flag: yes=1, no=0 */ users, /* flag: number of users holding the device */ streaming; /* flag: yes=1, no=0 */ u8 sensor_initialized; /* flag: yes=1, no=0 */ /* Determined by the image sensor type: */ int sensor, /* type of image sensor chip (CC_*) */ monochrome; /* image sensor is (probably) monochrome */ u16 maxwidth, /* maximum width supported by the image sensor */ maxheight, /* maximum height supported by the image sensor */ minwidth, /* minimum width supported by the image sensor */ minheight; /* minimum height supported by the image sensor */ u8 auto_brt, /* auto brightness enabled flag */ auto_exp, /* auto exposure enabled flag */ backlight, /* backlight exposure algorithm flag */ mirror, /* image is reversed horizontally */ lightfreq, /* power (lighting) frequency */ bandfilt; /* banding filter enabled flag */ s8 clockdiv; /* clock divisor */ /* I2C interface to kernel */ struct i2c_adapter i2c_adapter; struct i2c_client* sensor_client; /* Locks */ struct mutex dev_mutex, /* for probe, disconnect,open and close */ fileop_mutex; /* for read and ioctl */ spinlock_t urb_lock, /* for submit_urb() and unlink_urb() */ flist_lock; /* for requested frame list accesses */ wait_queue_head_t open, wait_queue; char command[16]; /* name of the program holding the device */ }; /**************************************************************************** * Macros for debugging * ****************************************************************************/ #undef DBG #undef KDBG #ifdef W9968CF_DEBUG /* For device specific debugging messages */ # define DBG(level, fmt, args...) \ { \ if ( ((specific_debug) && (debug == (level))) || \ ((!specific_debug) && (debug >= (level))) ) { \ if ((level) == 1) \ dev_err(&cam->dev, fmt "\n", ## args); \ else if ((level) == 2 || (level) == 3) \ dev_info(&cam->dev, fmt "\n", ## args); \ else if ((level) == 4) \ dev_warn(&cam->dev, fmt "\n", ## args); \ else if ((level) >= 5) \ dev_info(&cam->dev, "[%s:%d] " fmt "\n", \ __func__, __LINE__ , ## args); \ } \ } /* For generic kernel (not device specific) messages */ # define KDBG(level, fmt, args...) \ { \ if ( ((specific_debug) && (debug == (level))) || \ ((!specific_debug) && (debug >= (level))) ) { \ if ((level) >= 1 && (level) <= 4) \ pr_info("w9968cf: " fmt "\n", ## args); \ else if ((level) >= 5) \ pr_debug("w9968cf: [%s:%d] " fmt "\n", __func__, \ __LINE__ , ## args); \ } \ } #else /* Not debugging: nothing */ # define DBG(level, fmt, args...) do {;} while(0); # define KDBG(level, fmt, args...) do {;} while(0); #endif #undef PDBG #define PDBG(fmt, args...) \ dev_info(&cam->dev, "[%s:%d] " fmt "\n", __func__, __LINE__ , ## args); #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0); /* nothing: it's a placeholder */ #endif /* _W9968CF_H_ */