diff options
Diffstat (limited to 'drivers/usb/media/w9968cf.h')
| -rw-r--r-- | drivers/usb/media/w9968cf.h | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/drivers/usb/media/w9968cf.h b/drivers/usb/media/w9968cf.h new file mode 100644 index 00000000000..8acbfe205bc --- /dev/null +++ b/drivers/usb/media/w9968cf.h @@ -0,0 +1,339 @@ +/*************************************************************************** + * 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/config.h> +#include <linux/param.h> +#include <linux/types.h> +#include <linux/rwsem.h> +#include <asm/semaphore.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, +}; + +static struct w9968cf_vpp_t* w9968cf_vpp; +static DECLARE_MUTEX(w9968cf_vppmod_lock); +static DECLARE_WAIT_QUEUE_HEAD(w9968cf_vppmod_wait); + +static LIST_HEAD(w9968cf_dev_list); /* head of V4L registered cameras list */ +static DECLARE_MUTEX(w9968cf_devlist_sem); /* semaphore for list traversal */ + +static DECLARE_RWSEM(w9968cf_disconnect); /* prevent races with open() */ + +/* 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 semaphore dev_sem, /* for probe, disconnect,open and close */ + fileop_sem; /* 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", \ + __FUNCTION__, __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", __FUNCTION__, \ + __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", __FUNCTION__, __LINE__ , ## args); + +#undef PDBGG +#define PDBGG(fmt, args...) do {;} while(0); /* nothing: it's a placeholder */ + +#endif /* _W9968CF_H_ */ |