1 |
1275 |
phoenix |
/*
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2 |
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* STV0680 USB Camera Driver, by Kevin Sisson (kjsisson@bellsouth.net)
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*
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* Thanks to STMicroelectronics for information on the usb commands, and
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* to Steve Miller at STM for his help and encouragement while I was
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* writing this driver.
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*
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* This driver is based heavily on the
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* Endpoints (formerly known as AOX) se401 USB Camera Driver
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* Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org)
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*
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* Still somewhat based on the Linux ov511 driver.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* History:
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* ver 0.1 October, 2001. Initial attempt.
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*
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31 |
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* ver 0.2 November, 2001. Fixed asbility to resize, added brightness
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32 |
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* function, made more stable (?)
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*
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* ver 0.21 Nov, 2001. Added gamma correction and white balance,
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* due to Alexander Schwartz. Still trying to
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* improve stablility. Moved stuff into stv680.h
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*
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38 |
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* ver 0.22 Nov, 2001. Added sharpen function (by Michael Sweet,
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39 |
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* mike@easysw.com) from GIMP, also used in pencam.
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* Simple, fast, good integer math routine.
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*
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* ver 0.23 Dec, 2001 (gkh)
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* Took out sharpen function, ran code through
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* Lindent, and did other minor tweaks to get
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45 |
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* things to work properly with 2.5.1
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46 |
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*
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47 |
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* ver 0.24 Jan, 2002 (kjs)
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48 |
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* Fixed the problem with webcam crashing after
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49 |
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* two pictures. Changed the way pic is halved to
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50 |
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* improve quality. Got rid of green line around
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* frame. Fix brightness reset when changing size
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* bug. Adjusted gamma filters slightly.
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*
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* ver 0.25 Jan, 2002 (kjs)
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* Fixed a bug in which the driver sometimes attempted
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* to set to a non-supported size. This allowed
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* gnomemeeting to work.
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* Fixed proc entry removal bug.
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*/
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#include <linux/config.h>
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62 |
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#include <linux/module.h>
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63 |
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#include <linux/version.h>
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64 |
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#include <linux/init.h>
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65 |
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#include <linux/fs.h>
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66 |
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#include <linux/vmalloc.h>
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67 |
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#include <linux/slab.h>
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68 |
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#include <linux/proc_fs.h>
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69 |
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#include <linux/pagemap.h>
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70 |
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#include <linux/wrapper.h>
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71 |
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#include <linux/smp_lock.h>
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#include <linux/sched.h>
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#include <linux/signal.h>
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74 |
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#include <linux/errno.h>
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75 |
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#include <linux/videodev.h>
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#include <linux/usb.h>
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78 |
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#include "stv680.h"
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79 |
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80 |
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static int video_nr = -1;
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81 |
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static int swapRGB = 0; /* default for auto sleect */
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static int swapRGB_on = 0; /* default to allow auto select; -1=swap never, +1= swap always */
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84 |
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static unsigned int debug = 0;
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85 |
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86 |
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#define PDEBUG(level, fmt, args...) \
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87 |
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do { \
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88 |
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if (debug >= level) \
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89 |
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info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args); \
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90 |
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} while (0)
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/*
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94 |
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* Version Information
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*/
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#define DRIVER_VERSION "v0.25"
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97 |
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#define DRIVER_AUTHOR "Kevin Sisson <kjsisson@bellsouth.net>"
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98 |
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#define DRIVER_DESC "STV0680 USB Camera Driver"
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99 |
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100 |
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MODULE_AUTHOR (DRIVER_AUTHOR);
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101 |
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MODULE_DESCRIPTION (DRIVER_DESC);
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102 |
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MODULE_LICENSE ("GPL");
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103 |
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MODULE_PARM (debug, "i");
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104 |
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MODULE_PARM_DESC (debug, "Debug enabled or not");
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105 |
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MODULE_PARM (swapRGB_on, "i");
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106 |
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MODULE_PARM_DESC (swapRGB_on, "Red/blue swap: 1=always, 0=auto, -1=never");
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107 |
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MODULE_PARM (video_nr, "i");
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108 |
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EXPORT_NO_SYMBOLS;
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109 |
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110 |
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/********************************************************************
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111 |
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*
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112 |
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* Memory management
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113 |
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*
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114 |
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********************************************************************/
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116 |
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/* Here we want the physical address of the memory.
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117 |
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* This is used when initializing the contents of the area.
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118 |
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*/
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119 |
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static inline unsigned long kvirt_to_pa (unsigned long adr)
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120 |
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{
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121 |
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unsigned long kva, ret;
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122 |
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123 |
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kva = (unsigned long) page_address(vmalloc_to_page((void *)adr));
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124 |
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kva |= adr & (PAGE_SIZE-1); /* restore the offset */
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125 |
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ret = __pa(kva);
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126 |
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return ret;
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127 |
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}
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128 |
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129 |
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static void *rvmalloc (unsigned long size)
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130 |
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{
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131 |
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void *mem;
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132 |
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unsigned long adr;
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133 |
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134 |
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size = PAGE_ALIGN(size);
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135 |
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mem = vmalloc_32 (size);
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136 |
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if (!mem)
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137 |
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return NULL;
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138 |
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139 |
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memset (mem, 0, size); /* Clear the ram out, no junk to the user */
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140 |
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adr = (unsigned long) mem;
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141 |
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while (size > 0) {
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142 |
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mem_map_reserve(vmalloc_to_page((void *)adr));
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143 |
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adr += PAGE_SIZE;
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144 |
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size -= PAGE_SIZE;
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145 |
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}
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146 |
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return mem;
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147 |
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}
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148 |
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149 |
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static void rvfree (void *mem, unsigned long size)
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150 |
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{
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151 |
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unsigned long adr;
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152 |
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153 |
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if (!mem)
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154 |
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return;
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155 |
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156 |
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adr = (unsigned long) mem;
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157 |
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while ((long) size > 0) {
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158 |
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mem_map_unreserve(vmalloc_to_page((void *)adr));
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159 |
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adr += PAGE_SIZE;
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160 |
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size -= PAGE_SIZE;
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161 |
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}
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162 |
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vfree (mem);
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163 |
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}
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164 |
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/*********************************************************************
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167 |
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* pencam read/write functions
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168 |
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********************************************************************/
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169 |
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170 |
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static int stv_sndctrl (int set, struct usb_stv *stv680, unsigned short req, unsigned short value, unsigned char *buffer, int size)
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171 |
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{
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172 |
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int ret = -1;
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173 |
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174 |
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switch (set) {
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175 |
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case 0: /* 0xc1 */
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176 |
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ret = usb_control_msg (stv680->udev,
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177 |
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usb_rcvctrlpipe (stv680->udev, 0),
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178 |
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req,
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179 |
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(USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT),
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180 |
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value, 0, buffer, size, PENCAM_TIMEOUT);
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181 |
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break;
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182 |
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183 |
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case 1: /* 0x41 */
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184 |
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ret = usb_control_msg (stv680->udev,
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185 |
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usb_sndctrlpipe (stv680->udev, 0),
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req,
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187 |
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(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT),
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188 |
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value, 0, buffer, size, PENCAM_TIMEOUT);
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189 |
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break;
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190 |
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191 |
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case 2: /* 0x80 */
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192 |
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ret = usb_control_msg (stv680->udev,
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193 |
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usb_rcvctrlpipe (stv680->udev, 0),
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194 |
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req,
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195 |
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(USB_DIR_IN | USB_RECIP_DEVICE),
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196 |
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value, 0, buffer, size, PENCAM_TIMEOUT);
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197 |
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break;
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198 |
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|
199 |
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case 3: /* 0x40 */
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200 |
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ret = usb_control_msg (stv680->udev,
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201 |
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usb_sndctrlpipe (stv680->udev, 0),
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202 |
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req,
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203 |
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(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
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204 |
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value, 0, buffer, size, PENCAM_TIMEOUT);
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205 |
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break;
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206 |
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|
207 |
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}
|
208 |
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if ((ret < 0) && (req != 0x0a)) {
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209 |
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PDEBUG (1, "STV(e): usb_control_msg error %i, request = 0x%x, error = %i", set, req, ret);
|
210 |
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}
|
211 |
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return ret;
|
212 |
|
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}
|
213 |
|
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|
214 |
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static int stv_set_config (struct usb_stv *dev, int configuration, int interface, int alternate)
|
215 |
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{
|
216 |
|
|
|
217 |
|
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if (usb_set_configuration (dev->udev, configuration) < 0) {
|
218 |
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PDEBUG (1, "STV(e): FAILED to set configuration %i", configuration);
|
219 |
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return -1;
|
220 |
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}
|
221 |
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if (usb_set_interface (dev->udev, interface, alternate) < 0) {
|
222 |
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PDEBUG (1, "STV(e): FAILED to set alternate interface %i", alternate);
|
223 |
|
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return -1;
|
224 |
|
|
}
|
225 |
|
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return 0;
|
226 |
|
|
}
|
227 |
|
|
|
228 |
|
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static int stv_stop_video (struct usb_stv *dev)
|
229 |
|
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{
|
230 |
|
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int i;
|
231 |
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unsigned char *buf;
|
232 |
|
|
|
233 |
|
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buf = kmalloc (40, GFP_KERNEL);
|
234 |
|
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if (buf == NULL) {
|
235 |
|
|
PDEBUG (0, "STV(e): Out of (small buf) memory");
|
236 |
|
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return -1;
|
237 |
|
|
}
|
238 |
|
|
|
239 |
|
|
/* this is a high priority command; it stops all lower order commands */
|
240 |
|
|
if ((i = stv_sndctrl (1, dev, 0x04, 0x0000, buf, 0x0)) < 0) {
|
241 |
|
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i = stv_sndctrl (0, dev, 0x80, 0, buf, 0x02); /* Get Last Error; 2 = busy */
|
242 |
|
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PDEBUG (1, "STV(i): last error: %i, command = 0x%x", buf[0], buf[1]);
|
243 |
|
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} else {
|
244 |
|
|
PDEBUG (1, "STV(i): Camera reset to idle mode.");
|
245 |
|
|
}
|
246 |
|
|
|
247 |
|
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if ((i = stv_set_config (dev, 1, 0, 0)) < 0)
|
248 |
|
|
PDEBUG (1, "STV(e): Reset config during exit failed");
|
249 |
|
|
|
250 |
|
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/* get current mode */
|
251 |
|
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buf[0] = 0xf0;
|
252 |
|
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if ((i = stv_sndctrl (0, dev, 0x87, 0, buf, 0x08)) != 0x08) /* get mode */
|
253 |
|
|
PDEBUG (0, "STV(e): Stop_video: problem setting original mode");
|
254 |
|
|
if (dev->origMode != buf[0]) {
|
255 |
|
|
memset (buf, 0, 8);
|
256 |
|
|
buf[0] = (unsigned char) dev->origMode;
|
257 |
|
|
if ((i = stv_sndctrl (3, dev, 0x07, 0x0100, buf, 0x08)) != 0x08) {
|
258 |
|
|
PDEBUG (0, "STV(e): Stop_video: Set_Camera_Mode failed");
|
259 |
|
|
i = -1;
|
260 |
|
|
}
|
261 |
|
|
buf[0] = 0xf0;
|
262 |
|
|
i = stv_sndctrl (0, dev, 0x87, 0, buf, 0x08);
|
263 |
|
|
if ((i != 0x08) || (buf[0] != dev->origMode)) {
|
264 |
|
|
PDEBUG (0, "STV(e): camera NOT set to original resolution.");
|
265 |
|
|
i = -1;
|
266 |
|
|
} else
|
267 |
|
|
PDEBUG (0, "STV(i): Camera set to original resolution");
|
268 |
|
|
}
|
269 |
|
|
/* origMode */
|
270 |
|
|
kfree (buf);
|
271 |
|
|
return i;
|
272 |
|
|
}
|
273 |
|
|
|
274 |
|
|
static int stv_set_video_mode (struct usb_stv *dev)
|
275 |
|
|
{
|
276 |
|
|
int i, stop_video = 1;
|
277 |
|
|
unsigned char *buf;
|
278 |
|
|
|
279 |
|
|
buf = kmalloc (40, GFP_KERNEL);
|
280 |
|
|
if (buf == NULL) {
|
281 |
|
|
PDEBUG (0, "STV(e): Out of (small buf) memory");
|
282 |
|
|
return -1;
|
283 |
|
|
}
|
284 |
|
|
|
285 |
|
|
if ((i = stv_set_config (dev, 1, 0, 0)) < 0) {
|
286 |
|
|
kfree (buf);
|
287 |
|
|
return i;
|
288 |
|
|
}
|
289 |
|
|
|
290 |
|
|
i = stv_sndctrl (2, dev, 0x06, 0x0100, buf, 0x12);
|
291 |
|
|
if (!(i > 0) && (buf[8] == 0x53) && (buf[9] == 0x05)) {
|
292 |
|
|
PDEBUG (1, "STV(e): Could not get descriptor 0100.");
|
293 |
|
|
goto error;
|
294 |
|
|
}
|
295 |
|
|
|
296 |
|
|
/* set alternate interface 1 */
|
297 |
|
|
if ((i = stv_set_config (dev, 1, 0, 1)) < 0)
|
298 |
|
|
goto error;
|
299 |
|
|
|
300 |
|
|
if ((i = stv_sndctrl (0, dev, 0x85, 0, buf, 0x10)) != 0x10)
|
301 |
|
|
goto error;
|
302 |
|
|
PDEBUG (1, "STV(i): Setting video mode.");
|
303 |
|
|
/* Switch to Video mode: 0x0100 = VGA (640x480), 0x0000 = CIF (352x288) 0x0300 = QVGA (320x240) */
|
304 |
|
|
if ((i = stv_sndctrl (1, dev, 0x09, dev->VideoMode, buf, 0x0)) < 0) {
|
305 |
|
|
stop_video = 0;
|
306 |
|
|
goto error;
|
307 |
|
|
}
|
308 |
|
|
goto exit;
|
309 |
|
|
|
310 |
|
|
error:
|
311 |
|
|
kfree (buf);
|
312 |
|
|
if (stop_video == 1)
|
313 |
|
|
stv_stop_video (dev);
|
314 |
|
|
return -1;
|
315 |
|
|
|
316 |
|
|
exit:
|
317 |
|
|
kfree (buf);
|
318 |
|
|
return 0;
|
319 |
|
|
}
|
320 |
|
|
|
321 |
|
|
static int stv_init (struct usb_stv *stv680)
|
322 |
|
|
{
|
323 |
|
|
int i = 0;
|
324 |
|
|
unsigned char *buffer;
|
325 |
|
|
unsigned long int bufsize;
|
326 |
|
|
|
327 |
|
|
buffer = kmalloc (40, GFP_KERNEL);
|
328 |
|
|
if (buffer == NULL) {
|
329 |
|
|
PDEBUG (0, "STV(e): Out of (small buf) memory");
|
330 |
|
|
return -1;
|
331 |
|
|
}
|
332 |
|
|
memset (buffer, 0, 40);
|
333 |
|
|
udelay (100);
|
334 |
|
|
|
335 |
|
|
/* set config 1, interface 0, alternate 0 */
|
336 |
|
|
if ((i = stv_set_config (stv680, 1, 0, 0)) < 0) {
|
337 |
|
|
kfree (buffer);
|
338 |
|
|
PDEBUG (0, "STV(e): set config 1,0,0 failed");
|
339 |
|
|
return -1;
|
340 |
|
|
}
|
341 |
|
|
/* ping camera to be sure STV0680 is present */
|
342 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x88, 0x5678, buffer, 0x02)) != 0x02)
|
343 |
|
|
goto error;
|
344 |
|
|
if ((buffer[0] != 0x56) || (buffer[1] != 0x78)) {
|
345 |
|
|
PDEBUG (1, "STV(e): camera ping failed!!");
|
346 |
|
|
goto error;
|
347 |
|
|
}
|
348 |
|
|
|
349 |
|
|
/* get camera descriptor */
|
350 |
|
|
if ((i = stv_sndctrl (2, stv680, 0x06, 0x0200, buffer, 0x09)) != 0x09)
|
351 |
|
|
goto error;
|
352 |
|
|
i = stv_sndctrl (2, stv680, 0x06, 0x0200, buffer, 0x22);
|
353 |
|
|
if (!(i >= 0) && (buffer[7] == 0xa0) && (buffer[8] == 0x23)) {
|
354 |
|
|
PDEBUG (1, "STV(e): Could not get descriptor 0200.");
|
355 |
|
|
goto error;
|
356 |
|
|
}
|
357 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x8a, 0, buffer, 0x02)) != 0x02)
|
358 |
|
|
goto error;
|
359 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x8b, 0, buffer, 0x24)) != 0x24)
|
360 |
|
|
goto error;
|
361 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x85, 0, buffer, 0x10)) != 0x10)
|
362 |
|
|
goto error;
|
363 |
|
|
|
364 |
|
|
stv680->SupportedModes = buffer[7];
|
365 |
|
|
i = stv680->SupportedModes;
|
366 |
|
|
stv680->CIF = 0;
|
367 |
|
|
stv680->VGA = 0;
|
368 |
|
|
stv680->QVGA = 0;
|
369 |
|
|
if (i & 1)
|
370 |
|
|
stv680->CIF = 1;
|
371 |
|
|
if (i & 2)
|
372 |
|
|
stv680->VGA = 1;
|
373 |
|
|
if (i & 8)
|
374 |
|
|
stv680->QVGA = 1;
|
375 |
|
|
if (stv680->SupportedModes == 0) {
|
376 |
|
|
PDEBUG (0, "STV(e): There are NO supported STV680 modes!!");
|
377 |
|
|
i = -1;
|
378 |
|
|
goto error;
|
379 |
|
|
} else {
|
380 |
|
|
if (stv680->CIF)
|
381 |
|
|
PDEBUG (0, "STV(i): CIF is supported");
|
382 |
|
|
if (stv680->QVGA)
|
383 |
|
|
PDEBUG (0, "STV(i): QVGA is supported");
|
384 |
|
|
}
|
385 |
|
|
/* FW rev, ASIC rev, sensor ID */
|
386 |
|
|
PDEBUG (1, "STV(i): Firmware rev is %i.%i", buffer[0], buffer[1]);
|
387 |
|
|
PDEBUG (1, "STV(i): ASIC rev is %i.%i", buffer[2], buffer[3]);
|
388 |
|
|
PDEBUG (1, "STV(i): Sensor ID is %i", (buffer[4]*16) + (buffer[5]>>4));
|
389 |
|
|
|
390 |
|
|
/* set alternate interface 1 */
|
391 |
|
|
if ((i = stv_set_config (stv680, 1, 0, 1)) < 0)
|
392 |
|
|
goto error;
|
393 |
|
|
|
394 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x85, 0, buffer, 0x10)) != 0x10)
|
395 |
|
|
goto error;
|
396 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x8d, 0, buffer, 0x08)) != 0x08)
|
397 |
|
|
goto error;
|
398 |
|
|
i = buffer[3];
|
399 |
|
|
PDEBUG (0, "STV(i): Camera has %i pictures.", i);
|
400 |
|
|
|
401 |
|
|
/* get current mode */
|
402 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x87, 0, buffer, 0x08)) != 0x08)
|
403 |
|
|
goto error;
|
404 |
|
|
stv680->origMode = buffer[0]; /* 01 = VGA, 03 = QVGA, 00 = CIF */
|
405 |
|
|
|
406 |
|
|
/* This will attemp CIF mode, if supported. If not, set to QVGA */
|
407 |
|
|
memset (buffer, 0, 8);
|
408 |
|
|
if (stv680->CIF)
|
409 |
|
|
buffer[0] = 0x00;
|
410 |
|
|
else if (stv680->QVGA)
|
411 |
|
|
buffer[0] = 0x03;
|
412 |
|
|
if ((i = stv_sndctrl (3, stv680, 0x07, 0x0100, buffer, 0x08)) != 0x08) {
|
413 |
|
|
PDEBUG (0, "STV(i): Set_Camera_Mode failed");
|
414 |
|
|
i = -1;
|
415 |
|
|
goto error;
|
416 |
|
|
}
|
417 |
|
|
buffer[0] = 0xf0;
|
418 |
|
|
stv_sndctrl (0, stv680, 0x87, 0, buffer, 0x08);
|
419 |
|
|
if (((stv680->CIF == 1) && (buffer[0] != 0x00)) || ((stv680->QVGA == 1) && (buffer[0] != 0x03))) {
|
420 |
|
|
PDEBUG (0, "STV(e): Error setting camera video mode!");
|
421 |
|
|
i = -1;
|
422 |
|
|
goto error;
|
423 |
|
|
} else {
|
424 |
|
|
if (buffer[0] == 0) {
|
425 |
|
|
stv680->VideoMode = 0x0000;
|
426 |
|
|
PDEBUG (0, "STV(i): Video Mode set to CIF");
|
427 |
|
|
}
|
428 |
|
|
if (buffer[0] == 0x03) {
|
429 |
|
|
stv680->VideoMode = 0x0300;
|
430 |
|
|
PDEBUG (0, "STV(i): Video Mode set to QVGA");
|
431 |
|
|
}
|
432 |
|
|
}
|
433 |
|
|
if ((i = stv_sndctrl (0, stv680, 0x8f, 0, buffer, 0x10)) != 0x10)
|
434 |
|
|
goto error;
|
435 |
|
|
bufsize = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | (buffer[3]);
|
436 |
|
|
stv680->cwidth = (buffer[4] << 8) | (buffer[5]); /* ->camera = 322, 356, 644 */
|
437 |
|
|
stv680->cheight = (buffer[6] << 8) | (buffer[7]); /* ->camera = 242, 292, 484 */
|
438 |
|
|
stv680->origGain = buffer[12];
|
439 |
|
|
|
440 |
|
|
goto exit;
|
441 |
|
|
|
442 |
|
|
error:
|
443 |
|
|
i = stv_sndctrl (0, stv680, 0x80, 0, buffer, 0x02); /* Get Last Error */
|
444 |
|
|
PDEBUG (1, "STV(i): last error: %i, command = 0x%x", buffer[0], buffer[1]);
|
445 |
|
|
kfree (buffer);
|
446 |
|
|
return -1;
|
447 |
|
|
|
448 |
|
|
exit:
|
449 |
|
|
kfree (buffer);
|
450 |
|
|
|
451 |
|
|
/* video = 320x240, 352x288 */
|
452 |
|
|
if (stv680->CIF == 1) {
|
453 |
|
|
stv680->maxwidth = 352;
|
454 |
|
|
stv680->maxheight = 288;
|
455 |
|
|
stv680->vwidth = 352;
|
456 |
|
|
stv680->vheight = 288;
|
457 |
|
|
}
|
458 |
|
|
if (stv680->QVGA == 1) {
|
459 |
|
|
stv680->maxwidth = 320;
|
460 |
|
|
stv680->maxheight = 240;
|
461 |
|
|
stv680->vwidth = 320;
|
462 |
|
|
stv680->vheight = 240;
|
463 |
|
|
}
|
464 |
|
|
|
465 |
|
|
stv680->rawbufsize = bufsize; /* must be ./. by 8 */
|
466 |
|
|
stv680->maxframesize = bufsize * 3; /* RGB size */
|
467 |
|
|
PDEBUG (2, "STV(i): cwidth = %i, cheight = %i", stv680->cwidth, stv680->cheight);
|
468 |
|
|
PDEBUG (1, "STV(i): width = %i, height = %i, rawbufsize = %li", stv680->vwidth, stv680->vheight, stv680->rawbufsize);
|
469 |
|
|
|
470 |
|
|
/* some default values */
|
471 |
|
|
stv680->bulk_in_endpointAddr = 0x82;
|
472 |
|
|
stv680->dropped = 0;
|
473 |
|
|
stv680->error = 0;
|
474 |
|
|
stv680->framecount = 0;
|
475 |
|
|
stv680->readcount = 0;
|
476 |
|
|
stv680->streaming = 0;
|
477 |
|
|
/* bright, white, colour, hue, contrast are set by software, not in stv0680 */
|
478 |
|
|
stv680->brightness = 32767;
|
479 |
|
|
stv680->chgbright = 0;
|
480 |
|
|
stv680->whiteness = 0; /* only for greyscale */
|
481 |
|
|
stv680->colour = 32767;
|
482 |
|
|
stv680->contrast = 32767;
|
483 |
|
|
stv680->hue = 32767;
|
484 |
|
|
stv680->palette = STV_VIDEO_PALETTE;
|
485 |
|
|
stv680->depth = 24; /* rgb24 bits */
|
486 |
|
|
swapRGB = 0;
|
487 |
|
|
if ((swapRGB_on == 0) && (swapRGB == 0))
|
488 |
|
|
PDEBUG (1, "STV(i): swapRGB is (auto) OFF");
|
489 |
|
|
else if ((swapRGB_on == 1) && (swapRGB == 1))
|
490 |
|
|
PDEBUG (1, "STV(i): swapRGB is (auto) ON");
|
491 |
|
|
else if (swapRGB_on == 1)
|
492 |
|
|
PDEBUG (1, "STV(i): swapRGB is (forced) ON");
|
493 |
|
|
else if (swapRGB_on == -1)
|
494 |
|
|
PDEBUG (1, "STV(i): swapRGB is (forced) OFF");
|
495 |
|
|
|
496 |
|
|
if (stv_set_video_mode (stv680) < 0) {
|
497 |
|
|
PDEBUG (0, "STV(e): Could not set video mode in stv_init");
|
498 |
|
|
return -1;
|
499 |
|
|
}
|
500 |
|
|
|
501 |
|
|
return 0;
|
502 |
|
|
}
|
503 |
|
|
|
504 |
|
|
/***************** last of pencam routines *******************/
|
505 |
|
|
|
506 |
|
|
/********************************************************************
|
507 |
|
|
* /proc interface
|
508 |
|
|
*******************************************************************/
|
509 |
|
|
|
510 |
|
|
#if defined(CONFIG_PROC_FS) && defined(CONFIG_VIDEO_PROC_FS)
|
511 |
|
|
|
512 |
|
|
static struct proc_dir_entry *stv680_proc_entry = NULL;
|
513 |
|
|
extern struct proc_dir_entry *video_proc_entry;
|
514 |
|
|
|
515 |
|
|
#define YES_NO(x) ((x) ? "yes" : "no")
|
516 |
|
|
#define ON_OFF(x) ((x) ? "(auto) on" : "(auto) off")
|
517 |
|
|
|
518 |
|
|
static int stv680_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data)
|
519 |
|
|
{
|
520 |
|
|
char *out = page;
|
521 |
|
|
int len;
|
522 |
|
|
struct usb_stv *stv680 = data;
|
523 |
|
|
|
524 |
|
|
/* Stay under PAGE_SIZE or else bla bla bla.... */
|
525 |
|
|
|
526 |
|
|
out += sprintf (out, "driver_version : %s\n", DRIVER_VERSION);
|
527 |
|
|
out += sprintf (out, "model : %s\n", stv680->camera_name);
|
528 |
|
|
out += sprintf (out, "in use : %s\n", YES_NO (stv680->user));
|
529 |
|
|
out += sprintf (out, "streaming : %s\n", YES_NO (stv680->streaming));
|
530 |
|
|
out += sprintf (out, "num_frames : %d\n", STV680_NUMFRAMES);
|
531 |
|
|
|
532 |
|
|
out += sprintf (out, "Current size : %ix%i\n", stv680->vwidth, stv680->vheight);
|
533 |
|
|
if (swapRGB_on == 0)
|
534 |
|
|
out += sprintf (out, "swapRGB : %s\n", ON_OFF (swapRGB));
|
535 |
|
|
else if (swapRGB_on == 1)
|
536 |
|
|
out += sprintf (out, "swapRGB : (forced) on\n");
|
537 |
|
|
else if (swapRGB_on == -1)
|
538 |
|
|
out += sprintf (out, "swapRGB : (forced) off\n");
|
539 |
|
|
|
540 |
|
|
out += sprintf (out, "Palette : %i", stv680->palette);
|
541 |
|
|
|
542 |
|
|
out += sprintf (out, "\n");
|
543 |
|
|
|
544 |
|
|
out += sprintf (out, "Frames total : %d\n", stv680->readcount);
|
545 |
|
|
out += sprintf (out, "Frames read : %d\n", stv680->framecount);
|
546 |
|
|
out += sprintf (out, "Packets dropped : %d\n", stv680->dropped);
|
547 |
|
|
out += sprintf (out, "Decoding Errors : %d\n", stv680->error);
|
548 |
|
|
|
549 |
|
|
len = out - page;
|
550 |
|
|
len -= off;
|
551 |
|
|
if (len < count) {
|
552 |
|
|
*eof = 1;
|
553 |
|
|
if (len <= 0)
|
554 |
|
|
return 0;
|
555 |
|
|
} else
|
556 |
|
|
len = count;
|
557 |
|
|
|
558 |
|
|
*start = page + off;
|
559 |
|
|
return len;
|
560 |
|
|
}
|
561 |
|
|
|
562 |
|
|
static int create_proc_stv680_cam (struct usb_stv *stv680)
|
563 |
|
|
{
|
564 |
|
|
char name[9];
|
565 |
|
|
struct proc_dir_entry *ent;
|
566 |
|
|
|
567 |
|
|
if (!stv680_proc_entry || !stv680)
|
568 |
|
|
return -1;
|
569 |
|
|
|
570 |
|
|
sprintf (name, "video%d", stv680->vdev.minor);
|
571 |
|
|
|
572 |
|
|
ent = create_proc_entry (name, S_IFREG | S_IRUGO | S_IWUSR, stv680_proc_entry);
|
573 |
|
|
if (!ent)
|
574 |
|
|
return -1;
|
575 |
|
|
|
576 |
|
|
ent->data = stv680;
|
577 |
|
|
ent->read_proc = stv680_read_proc;
|
578 |
|
|
stv680->proc_entry = ent;
|
579 |
|
|
return 0;
|
580 |
|
|
}
|
581 |
|
|
|
582 |
|
|
static void destroy_proc_stv680_cam (struct usb_stv *stv680)
|
583 |
|
|
{
|
584 |
|
|
/* One to much, just to be sure :) */
|
585 |
|
|
char name[9];
|
586 |
|
|
|
587 |
|
|
if (!stv680 || !stv680->proc_entry)
|
588 |
|
|
return;
|
589 |
|
|
|
590 |
|
|
sprintf (name, "video%d", stv680->vdev.minor);
|
591 |
|
|
remove_proc_entry (name, stv680_proc_entry);
|
592 |
|
|
stv680->proc_entry = NULL;
|
593 |
|
|
}
|
594 |
|
|
|
595 |
|
|
static int proc_stv680_create (void)
|
596 |
|
|
{
|
597 |
|
|
if (video_proc_entry == NULL) {
|
598 |
|
|
PDEBUG (0, "STV(e): /proc/video/ doesn't exist!");
|
599 |
|
|
return -1;
|
600 |
|
|
}
|
601 |
|
|
stv680_proc_entry = create_proc_entry ("stv680", S_IFDIR, video_proc_entry);
|
602 |
|
|
|
603 |
|
|
if (stv680_proc_entry) {
|
604 |
|
|
stv680_proc_entry->owner = THIS_MODULE;
|
605 |
|
|
} else {
|
606 |
|
|
PDEBUG (0, "STV(e): Unable to initialize /proc/video/stv680");
|
607 |
|
|
return -1;
|
608 |
|
|
}
|
609 |
|
|
return 0;
|
610 |
|
|
}
|
611 |
|
|
|
612 |
|
|
static void proc_stv680_destroy (void)
|
613 |
|
|
{
|
614 |
|
|
if (stv680_proc_entry == NULL)
|
615 |
|
|
return;
|
616 |
|
|
|
617 |
|
|
remove_proc_entry ("stv680", video_proc_entry);
|
618 |
|
|
}
|
619 |
|
|
#endif /* CONFIG_PROC_FS && CONFIG_VIDEO_PROC_FS */
|
620 |
|
|
|
621 |
|
|
/********************************************************************
|
622 |
|
|
* Camera control
|
623 |
|
|
*******************************************************************/
|
624 |
|
|
|
625 |
|
|
static int stv680_get_pict (struct usb_stv *stv680, struct video_picture *p)
|
626 |
|
|
{
|
627 |
|
|
/* This sets values for v4l interface. max/min = 65535/0 */
|
628 |
|
|
|
629 |
|
|
p->brightness = stv680->brightness;
|
630 |
|
|
p->whiteness = stv680->whiteness; /* greyscale */
|
631 |
|
|
p->colour = stv680->colour;
|
632 |
|
|
p->contrast = stv680->contrast;
|
633 |
|
|
p->hue = stv680->hue;
|
634 |
|
|
p->palette = stv680->palette;
|
635 |
|
|
p->depth = stv680->depth;
|
636 |
|
|
return 0;
|
637 |
|
|
}
|
638 |
|
|
|
639 |
|
|
static int stv680_set_pict (struct usb_stv *stv680, struct video_picture *p)
|
640 |
|
|
{
|
641 |
|
|
/* See above stv680_get_pict */
|
642 |
|
|
|
643 |
|
|
if (p->palette != STV_VIDEO_PALETTE) {
|
644 |
|
|
PDEBUG (2, "STV(e): Palette set error in _set_pic");
|
645 |
|
|
return 1;
|
646 |
|
|
}
|
647 |
|
|
|
648 |
|
|
if (stv680->brightness != p->brightness) {
|
649 |
|
|
stv680->chgbright = 1;
|
650 |
|
|
stv680->brightness = p->brightness;
|
651 |
|
|
}
|
652 |
|
|
|
653 |
|
|
stv680->whiteness = p->whiteness; /* greyscale */
|
654 |
|
|
stv680->colour = p->colour;
|
655 |
|
|
stv680->contrast = p->contrast;
|
656 |
|
|
stv680->hue = p->hue;
|
657 |
|
|
stv680->palette = p->palette;
|
658 |
|
|
stv680->depth = p->depth;
|
659 |
|
|
|
660 |
|
|
return 0;
|
661 |
|
|
}
|
662 |
|
|
|
663 |
|
|
static void stv680_video_irq (struct urb *urb)
|
664 |
|
|
{
|
665 |
|
|
struct usb_stv *stv680 = urb->context;
|
666 |
|
|
int length = urb->actual_length;
|
667 |
|
|
|
668 |
|
|
if (length < stv680->rawbufsize)
|
669 |
|
|
PDEBUG (2, "STV(i): Lost data in transfer: exp %li, got %i", stv680->rawbufsize, length);
|
670 |
|
|
|
671 |
|
|
/* ohoh... */
|
672 |
|
|
if (!stv680->streaming)
|
673 |
|
|
return;
|
674 |
|
|
|
675 |
|
|
if (!stv680->udev) {
|
676 |
|
|
PDEBUG (0, "STV(e): device vapourished in video_irq");
|
677 |
|
|
return;
|
678 |
|
|
}
|
679 |
|
|
|
680 |
|
|
/* 0 sized packets happen if we are to fast, but sometimes the camera
|
681 |
|
|
keeps sending them forever...
|
682 |
|
|
*/
|
683 |
|
|
if (length && !urb->status) {
|
684 |
|
|
stv680->nullpackets = 0;
|
685 |
|
|
switch (stv680->scratch[stv680->scratch_next].state) {
|
686 |
|
|
case BUFFER_READY:
|
687 |
|
|
case BUFFER_BUSY:
|
688 |
|
|
stv680->dropped++;
|
689 |
|
|
break;
|
690 |
|
|
|
691 |
|
|
case BUFFER_UNUSED:
|
692 |
|
|
memcpy (stv680->scratch[stv680->scratch_next].data,
|
693 |
|
|
(unsigned char *) urb->transfer_buffer, length);
|
694 |
|
|
stv680->scratch[stv680->scratch_next].state = BUFFER_READY;
|
695 |
|
|
stv680->scratch[stv680->scratch_next].length = length;
|
696 |
|
|
if (waitqueue_active (&stv680->wq)) {
|
697 |
|
|
wake_up_interruptible (&stv680->wq);
|
698 |
|
|
}
|
699 |
|
|
stv680->scratch_overflow = 0;
|
700 |
|
|
stv680->scratch_next++;
|
701 |
|
|
if (stv680->scratch_next >= STV680_NUMSCRATCH)
|
702 |
|
|
stv680->scratch_next = 0;;
|
703 |
|
|
break;
|
704 |
|
|
} /* switch */
|
705 |
|
|
} else {
|
706 |
|
|
stv680->nullpackets++;
|
707 |
|
|
if (stv680->nullpackets > STV680_MAX_NULLPACKETS) {
|
708 |
|
|
if (waitqueue_active (&stv680->wq)) {
|
709 |
|
|
wake_up_interruptible (&stv680->wq);
|
710 |
|
|
}
|
711 |
|
|
}
|
712 |
|
|
} /* if - else */
|
713 |
|
|
|
714 |
|
|
/* Resubmit urb for new data */
|
715 |
|
|
urb->status = 0;
|
716 |
|
|
urb->dev = stv680->udev;
|
717 |
|
|
if (usb_submit_urb (urb))
|
718 |
|
|
PDEBUG (0, "STV(e): urb burned down in video irq");
|
719 |
|
|
return;
|
720 |
|
|
} /* _video_irq */
|
721 |
|
|
|
722 |
|
|
static int stv680_start_stream (struct usb_stv *stv680)
|
723 |
|
|
{
|
724 |
|
|
struct urb *urb;
|
725 |
|
|
int err = 0, i;
|
726 |
|
|
|
727 |
|
|
stv680->streaming = 1;
|
728 |
|
|
|
729 |
|
|
/* Do some memory allocation */
|
730 |
|
|
for (i = 0; i < STV680_NUMFRAMES; i++) {
|
731 |
|
|
stv680->frame[i].data = stv680->fbuf + i * stv680->maxframesize;
|
732 |
|
|
stv680->frame[i].curpix = 0;
|
733 |
|
|
}
|
734 |
|
|
/* packet size = 4096 */
|
735 |
|
|
for (i = 0; i < STV680_NUMSBUF; i++) {
|
736 |
|
|
stv680->sbuf[i].data = kmalloc (stv680->rawbufsize, GFP_KERNEL);
|
737 |
|
|
if (stv680->sbuf[i].data == NULL) {
|
738 |
|
|
PDEBUG (0, "STV(e): Could not kmalloc raw data buffer %i", i);
|
739 |
|
|
return -1;
|
740 |
|
|
}
|
741 |
|
|
}
|
742 |
|
|
|
743 |
|
|
stv680->scratch_next = 0;
|
744 |
|
|
stv680->scratch_use = 0;
|
745 |
|
|
stv680->scratch_overflow = 0;
|
746 |
|
|
for (i = 0; i < STV680_NUMSCRATCH; i++) {
|
747 |
|
|
stv680->scratch[i].data = kmalloc (stv680->rawbufsize, GFP_KERNEL);
|
748 |
|
|
if (stv680->scratch[i].data == NULL) {
|
749 |
|
|
PDEBUG (0, "STV(e): Could not kmalloc raw scratch buffer %i", i);
|
750 |
|
|
return -1;
|
751 |
|
|
}
|
752 |
|
|
stv680->scratch[i].state = BUFFER_UNUSED;
|
753 |
|
|
}
|
754 |
|
|
|
755 |
|
|
for (i = 0; i < STV680_NUMSBUF; i++) {
|
756 |
|
|
urb = usb_alloc_urb (0);
|
757 |
|
|
if (!urb)
|
758 |
|
|
return -ENOMEM;
|
759 |
|
|
|
760 |
|
|
/* sbuf is urb->transfer_buffer, later gets memcpyed to scratch */
|
761 |
|
|
usb_fill_bulk_urb (urb, stv680->udev,
|
762 |
|
|
usb_rcvbulkpipe (stv680->udev, stv680->bulk_in_endpointAddr),
|
763 |
|
|
stv680->sbuf[i].data, stv680->rawbufsize,
|
764 |
|
|
stv680_video_irq, stv680);
|
765 |
|
|
urb->timeout = PENCAM_TIMEOUT * 2;
|
766 |
|
|
urb->transfer_flags |= USB_QUEUE_BULK;
|
767 |
|
|
stv680->urb[i] = urb;
|
768 |
|
|
err = usb_submit_urb (stv680->urb[i]);
|
769 |
|
|
if (err)
|
770 |
|
|
PDEBUG (0, "STV(e): urb burned down in start stream");
|
771 |
|
|
} /* i STV680_NUMSBUF */
|
772 |
|
|
|
773 |
|
|
stv680->framecount = 0;
|
774 |
|
|
return 0;
|
775 |
|
|
}
|
776 |
|
|
|
777 |
|
|
static int stv680_stop_stream (struct usb_stv *stv680)
|
778 |
|
|
{
|
779 |
|
|
int i;
|
780 |
|
|
|
781 |
|
|
if (!stv680->streaming || !stv680->udev)
|
782 |
|
|
return 1;
|
783 |
|
|
|
784 |
|
|
stv680->streaming = 0;
|
785 |
|
|
|
786 |
|
|
for (i = 0; i < STV680_NUMSBUF; i++)
|
787 |
|
|
if (stv680->urb[i]) {
|
788 |
|
|
stv680->urb[i]->next = NULL;
|
789 |
|
|
usb_unlink_urb (stv680->urb[i]);
|
790 |
|
|
usb_free_urb (stv680->urb[i]);
|
791 |
|
|
stv680->urb[i] = NULL;
|
792 |
|
|
kfree (stv680->sbuf[i].data);
|
793 |
|
|
}
|
794 |
|
|
for (i = 0; i < STV680_NUMSCRATCH; i++) {
|
795 |
|
|
kfree (stv680->scratch[i].data);
|
796 |
|
|
stv680->scratch[i].data = NULL;
|
797 |
|
|
}
|
798 |
|
|
|
799 |
|
|
return 0;
|
800 |
|
|
}
|
801 |
|
|
|
802 |
|
|
static int stv680_set_size (struct usb_stv *stv680, int width, int height)
|
803 |
|
|
{
|
804 |
|
|
int wasstreaming = stv680->streaming;
|
805 |
|
|
|
806 |
|
|
/* Check to see if we need to change */
|
807 |
|
|
if ((stv680->vwidth == width) && (stv680->vheight == height))
|
808 |
|
|
return 0;
|
809 |
|
|
|
810 |
|
|
PDEBUG (1, "STV(i): size request for %i x %i", width, height);
|
811 |
|
|
/* Check for a valid mode */
|
812 |
|
|
if ((!width || !height) || ((width & 1) || (height & 1))) {
|
813 |
|
|
PDEBUG (1, "STV(e): set_size error: request: v.width = %i, v.height = %i actual: stv.width = %i, stv.height = %i", width, height, stv680->vwidth, stv680->vheight);
|
814 |
|
|
return 1;
|
815 |
|
|
}
|
816 |
|
|
|
817 |
|
|
if ((width < (stv680->maxwidth / 2)) || (height < (stv680->maxheight / 2))) {
|
818 |
|
|
width = stv680->maxwidth / 2;
|
819 |
|
|
height = stv680->maxheight / 2;
|
820 |
|
|
} else if ((width >= 158) && (width <= 166) && (stv680->QVGA == 1)) {
|
821 |
|
|
width = 160;
|
822 |
|
|
height = 120;
|
823 |
|
|
} else if ((width >= 172) && (width <= 180) && (stv680->CIF == 1)) {
|
824 |
|
|
width = 176;
|
825 |
|
|
height = 144;
|
826 |
|
|
} else if ((width >= 318) && (width <= 350) && (stv680->QVGA == 1)) {
|
827 |
|
|
width = 320;
|
828 |
|
|
height = 240;
|
829 |
|
|
} else if ((width >= 350) && (width <= 358) && (stv680->CIF == 1)) {
|
830 |
|
|
width = 352;
|
831 |
|
|
height = 288;
|
832 |
|
|
} else {
|
833 |
|
|
PDEBUG (1, "STV(e): request for non-supported size: request: v.width = %i, v.height = %i actual: stv.width = %i, stv.height = %i", width, height, stv680->vwidth, stv680->vheight);
|
834 |
|
|
return 1;
|
835 |
|
|
}
|
836 |
|
|
|
837 |
|
|
/* Stop a current stream and start it again at the new size */
|
838 |
|
|
if (wasstreaming)
|
839 |
|
|
stv680_stop_stream (stv680);
|
840 |
|
|
stv680->vwidth = width;
|
841 |
|
|
stv680->vheight = height;
|
842 |
|
|
PDEBUG (1, "STV(i): size set to %i x %i", stv680->vwidth, stv680->vheight);
|
843 |
|
|
if (wasstreaming)
|
844 |
|
|
stv680_start_stream (stv680);
|
845 |
|
|
|
846 |
|
|
return 0;
|
847 |
|
|
}
|
848 |
|
|
|
849 |
|
|
/**********************************************************************
|
850 |
|
|
* Video Decoding
|
851 |
|
|
**********************************************************************/
|
852 |
|
|
|
853 |
|
|
/******* routines from the pencam program; hey, they work! ********/
|
854 |
|
|
|
855 |
|
|
/*
|
856 |
|
|
* STV0680 Vision Camera Chipset Driver
|
857 |
|
|
* Copyright (C) 2000 Adam Harrison <adam@antispin.org>
|
858 |
|
|
*/
|
859 |
|
|
|
860 |
|
|
#define RED 0
|
861 |
|
|
#define GREEN 1
|
862 |
|
|
#define BLUE 2
|
863 |
|
|
#define AD(x, y, w) (((y)*(w)+(x))*3)
|
864 |
|
|
|
865 |
|
|
static void bayer_unshuffle (struct usb_stv *stv680, struct stv680_scratch *buffer)
|
866 |
|
|
{
|
867 |
|
|
int x, y, i;
|
868 |
|
|
int w = stv680->cwidth;
|
869 |
|
|
int vw = stv680->cwidth, vh = stv680->cheight;
|
870 |
|
|
unsigned int p = 0;
|
871 |
|
|
int colour = 0, bayer = 0;
|
872 |
|
|
unsigned char *raw = buffer->data;
|
873 |
|
|
struct stv680_frame *frame = &stv680->frame[stv680->curframe];
|
874 |
|
|
unsigned char *output = frame->data;
|
875 |
|
|
unsigned char *temp = frame->data;
|
876 |
|
|
int offset = buffer->offset;
|
877 |
|
|
|
878 |
|
|
if (frame->curpix == 0) {
|
879 |
|
|
if (frame->grabstate == FRAME_READY) {
|
880 |
|
|
frame->grabstate = FRAME_GRABBING;
|
881 |
|
|
}
|
882 |
|
|
}
|
883 |
|
|
if (offset != frame->curpix) { /* Regard frame as lost :( */
|
884 |
|
|
frame->curpix = 0;
|
885 |
|
|
stv680->error++;
|
886 |
|
|
return;
|
887 |
|
|
}
|
888 |
|
|
|
889 |
|
|
if ((stv680->vwidth == 320) || (stv680->vwidth == 160)) {
|
890 |
|
|
vw = 320;
|
891 |
|
|
vh = 240;
|
892 |
|
|
}
|
893 |
|
|
if ((stv680->vwidth == 352) || (stv680->vwidth == 176)) {
|
894 |
|
|
vw = 352;
|
895 |
|
|
vh = 288;
|
896 |
|
|
}
|
897 |
|
|
|
898 |
|
|
memset (output, 0, 3 * vw * vh); /* clear output matrix. */
|
899 |
|
|
|
900 |
|
|
for (y = 0; y < vh; y++) {
|
901 |
|
|
for (x = 0; x < vw; x++) {
|
902 |
|
|
if (x & 1)
|
903 |
|
|
p = *(raw + y * w + (x >> 1));
|
904 |
|
|
else
|
905 |
|
|
p = *(raw + y * w + (x >> 1) + (w >> 1));
|
906 |
|
|
|
907 |
|
|
if (y & 1)
|
908 |
|
|
bayer = 2;
|
909 |
|
|
else
|
910 |
|
|
bayer = 0;
|
911 |
|
|
if (x & 1)
|
912 |
|
|
bayer++;
|
913 |
|
|
|
914 |
|
|
switch (bayer) {
|
915 |
|
|
case 0:
|
916 |
|
|
case 3:
|
917 |
|
|
colour = 1;
|
918 |
|
|
break;
|
919 |
|
|
case 1:
|
920 |
|
|
colour = 0;
|
921 |
|
|
break;
|
922 |
|
|
case 2:
|
923 |
|
|
colour = 2;
|
924 |
|
|
break;
|
925 |
|
|
}
|
926 |
|
|
i = (y * vw + x) * 3;
|
927 |
|
|
*(output + i + colour) = (unsigned char) p;
|
928 |
|
|
} /* for x */
|
929 |
|
|
|
930 |
|
|
} /* for y */
|
931 |
|
|
|
932 |
|
|
/****** gamma correction plus hardcoded white balance */
|
933 |
|
|
/* Thanks to Alexander Schwartx <alexander.schwartx@gmx.net> for this code.
|
934 |
|
|
Correction values red[], green[], blue[], are generated by
|
935 |
|
|
(pow(i/256.0, GAMMA)*255.0)*white balanceRGB where GAMMA=0.55, 1<i<255.
|
936 |
|
|
White balance (RGB)= 1.0, 1.17, 1.48. Values are calculated as double float and
|
937 |
|
|
converted to unsigned char. Values are in stv680.h */
|
938 |
|
|
|
939 |
|
|
for (y = 0; y < vh; y++) {
|
940 |
|
|
for (x = 0; x < vw; x++) {
|
941 |
|
|
i = (y * vw + x) * 3;
|
942 |
|
|
*(output + i) = red[*(output + i)];
|
943 |
|
|
*(output + i + 1) = green[*(output + i + 1)];
|
944 |
|
|
*(output + i + 2) = blue[*(output + i + 2)];
|
945 |
|
|
}
|
946 |
|
|
}
|
947 |
|
|
|
948 |
|
|
/****** bayer demosaic ******/
|
949 |
|
|
for (y = 1; y < (vh - 1); y++) {
|
950 |
|
|
for (x = 1; x < (vw - 1); x++) { /* work out pixel type */
|
951 |
|
|
if (y & 1)
|
952 |
|
|
bayer = 0;
|
953 |
|
|
else
|
954 |
|
|
bayer = 2;
|
955 |
|
|
if (!(x & 1))
|
956 |
|
|
bayer++;
|
957 |
|
|
|
958 |
|
|
switch (bayer) {
|
959 |
|
|
case 0: /* green. blue lr, red tb */
|
960 |
|
|
*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x - 1, y, vw) + BLUE) + (int) *(output + AD (x + 1, y, vw) + BLUE)) >> 1;
|
961 |
|
|
*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x, y - 1, vw) + RED) + (int) *(output + AD (x, y + 1, vw) + RED)) >> 1;
|
962 |
|
|
break;
|
963 |
|
|
|
964 |
|
|
case 1: /* blue. green lrtb, red diagonals */
|
965 |
|
|
*(output + AD (x, y, vw) + GREEN) = ((int) *(output + AD (x - 1, y, vw) + GREEN) + (int) *(output + AD (x + 1, y, vw) + GREEN) + (int) *(output + AD (x, y - 1, vw) + GREEN) + (int) *(output + AD (x, y + 1, vw) + GREEN)) >> 2;
|
966 |
|
|
*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x - 1, y - 1, vw) + RED) + (int) *(output + AD (x - 1, y + 1, vw) + RED) + (int) *(output + AD (x + 1, y - 1, vw) + RED) + (int) *(output + AD (x + 1, y + 1, vw) + RED)) >> 2;
|
967 |
|
|
break;
|
968 |
|
|
|
969 |
|
|
case 2: /* red. green lrtb, blue diagonals */
|
970 |
|
|
*(output + AD (x, y, vw) + GREEN) = ((int) *(output + AD (x - 1, y, vw) + GREEN) + (int) *(output + AD (x + 1, y, vw) + GREEN) + (int) *(output + AD (x, y - 1, vw) + GREEN) + (int) *(output + AD (x, y + 1, vw) + GREEN)) >> 2;
|
971 |
|
|
*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x - 1, y - 1, vw) + BLUE) + (int) *(output + AD (x + 1, y - 1, vw) + BLUE) + (int) *(output + AD (x - 1, y + 1, vw) + BLUE) + (int) *(output + AD (x + 1, y + 1, vw) + BLUE)) >> 2;
|
972 |
|
|
break;
|
973 |
|
|
|
974 |
|
|
case 3: /* green. red lr, blue tb */
|
975 |
|
|
*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x - 1, y, vw) + RED) + (int) *(output + AD (x + 1, y, vw) + RED)) >> 1;
|
976 |
|
|
*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x, y - 1, vw) + BLUE) + (int) *(output + AD (x, y + 1, vw) + BLUE)) >> 1;
|
977 |
|
|
break;
|
978 |
|
|
} /* switch */
|
979 |
|
|
} /* for x */
|
980 |
|
|
} /* for y - end demosaic */
|
981 |
|
|
|
982 |
|
|
/* fix top and bottom row, left and right side */
|
983 |
|
|
i = vw * 3;
|
984 |
|
|
memcpy (output, (output + i), i);
|
985 |
|
|
memcpy ((output + (vh * i)), (output + ((vh - 1) * i)), i);
|
986 |
|
|
for (y = 0; y < vh; y++) {
|
987 |
|
|
i = y * vw * 3;
|
988 |
|
|
memcpy ((output + i), (output + i + 3), 3);
|
989 |
|
|
memcpy ((output + i + (vw * 3)), (output + i + (vw - 1) * 3), 3);
|
990 |
|
|
}
|
991 |
|
|
|
992 |
|
|
/* process all raw data, then trim to size if necessary */
|
993 |
|
|
if ((stv680->vwidth == 160) || (stv680->vwidth == 176)) {
|
994 |
|
|
i = 0;
|
995 |
|
|
for (y = 0; y < vh; y++) {
|
996 |
|
|
if (!(y & 1)) {
|
997 |
|
|
for (x = 0; x < vw; x++) {
|
998 |
|
|
p = (y * vw + x) * 3;
|
999 |
|
|
if (!(x & 1)) {
|
1000 |
|
|
*(output + i) = *(output + p);
|
1001 |
|
|
*(output + i + 1) = *(output + p + 1);
|
1002 |
|
|
*(output + i + 2) = *(output + p + 2);
|
1003 |
|
|
i += 3;
|
1004 |
|
|
}
|
1005 |
|
|
} /* for x */
|
1006 |
|
|
}
|
1007 |
|
|
} /* for y */
|
1008 |
|
|
}
|
1009 |
|
|
/* reset to proper width */
|
1010 |
|
|
if ((stv680->vwidth == 160)) {
|
1011 |
|
|
vw = 160;
|
1012 |
|
|
vh = 120;
|
1013 |
|
|
}
|
1014 |
|
|
if ((stv680->vwidth == 176)) {
|
1015 |
|
|
vw = 176;
|
1016 |
|
|
vh = 144;
|
1017 |
|
|
}
|
1018 |
|
|
|
1019 |
|
|
/* output is RGB; some programs want BGR */
|
1020 |
|
|
/* swapRGB_on=0 -> program decides; swapRGB_on=1, always swap */
|
1021 |
|
|
/* swapRGB_on=-1, never swap */
|
1022 |
|
|
if (((swapRGB == 1) && (swapRGB_on != -1)) || (swapRGB_on == 1)) {
|
1023 |
|
|
for (y = 0; y < vh; y++) {
|
1024 |
|
|
for (x = 0; x < vw; x++) {
|
1025 |
|
|
i = (y * vw + x) * 3;
|
1026 |
|
|
*(temp) = *(output + i);
|
1027 |
|
|
*(output + i) = *(output + i + 2);
|
1028 |
|
|
*(output + i + 2) = *(temp);
|
1029 |
|
|
}
|
1030 |
|
|
}
|
1031 |
|
|
}
|
1032 |
|
|
/* brightness */
|
1033 |
|
|
if (stv680->chgbright == 1) {
|
1034 |
|
|
if (stv680->brightness >= 32767) {
|
1035 |
|
|
p = (stv680->brightness - 32767) / 256;
|
1036 |
|
|
for (x = 0; x < (vw * vh * 3); x++) {
|
1037 |
|
|
if ((*(output + x) + (unsigned char) p) > 255)
|
1038 |
|
|
*(output + x) = 255;
|
1039 |
|
|
else
|
1040 |
|
|
*(output + x) += (unsigned char) p;
|
1041 |
|
|
} /* for */
|
1042 |
|
|
} else {
|
1043 |
|
|
p = (32767 - stv680->brightness) / 256;
|
1044 |
|
|
for (x = 0; x < (vw * vh * 3); x++) {
|
1045 |
|
|
if ((unsigned char) p > *(output + x))
|
1046 |
|
|
*(output + x) = 0;
|
1047 |
|
|
else
|
1048 |
|
|
*(output + x) -= (unsigned char) p;
|
1049 |
|
|
} /* for */
|
1050 |
|
|
} /* else */
|
1051 |
|
|
}
|
1052 |
|
|
/* if */
|
1053 |
|
|
frame->curpix = 0;
|
1054 |
|
|
frame->curlinepix = 0;
|
1055 |
|
|
frame->grabstate = FRAME_DONE;
|
1056 |
|
|
stv680->framecount++;
|
1057 |
|
|
stv680->readcount++;
|
1058 |
|
|
if (stv680->frame[(stv680->curframe + 1) & (STV680_NUMFRAMES - 1)].grabstate == FRAME_READY) {
|
1059 |
|
|
stv680->curframe = (stv680->curframe + 1) & (STV680_NUMFRAMES - 1);
|
1060 |
|
|
}
|
1061 |
|
|
|
1062 |
|
|
} /* bayer_unshuffle */
|
1063 |
|
|
|
1064 |
|
|
/******* end routines from the pencam program *********/
|
1065 |
|
|
|
1066 |
|
|
static int stv680_newframe (struct usb_stv *stv680, int framenr)
|
1067 |
|
|
{
|
1068 |
|
|
int errors = 0;
|
1069 |
|
|
|
1070 |
|
|
while (stv680->streaming && (stv680->frame[framenr].grabstate == FRAME_READY || stv680->frame[framenr].grabstate == FRAME_GRABBING)) {
|
1071 |
|
|
if (!stv680->frame[framenr].curpix) {
|
1072 |
|
|
errors++;
|
1073 |
|
|
}
|
1074 |
|
|
wait_event_interruptible (stv680->wq, (stv680->scratch[stv680->scratch_use].state == BUFFER_READY));
|
1075 |
|
|
|
1076 |
|
|
if (stv680->removed)
|
1077 |
|
|
return -ENODEV;
|
1078 |
|
|
|
1079 |
|
|
if (stv680->nullpackets > STV680_MAX_NULLPACKETS) {
|
1080 |
|
|
stv680->nullpackets = 0;
|
1081 |
|
|
PDEBUG (2, "STV(i): too many null length packets, restarting capture");
|
1082 |
|
|
stv680_stop_stream (stv680);
|
1083 |
|
|
stv680_start_stream (stv680);
|
1084 |
|
|
} else {
|
1085 |
|
|
if (stv680->scratch[stv680->scratch_use].state != BUFFER_READY) {
|
1086 |
|
|
stv680->frame[framenr].grabstate = FRAME_ERROR;
|
1087 |
|
|
PDEBUG (2, "STV(e): FRAME_ERROR in _newframe");
|
1088 |
|
|
return -EIO;
|
1089 |
|
|
}
|
1090 |
|
|
stv680->scratch[stv680->scratch_use].state = BUFFER_BUSY;
|
1091 |
|
|
|
1092 |
|
|
bayer_unshuffle (stv680, &stv680->scratch[stv680->scratch_use]);
|
1093 |
|
|
|
1094 |
|
|
stv680->scratch[stv680->scratch_use].state = BUFFER_UNUSED;
|
1095 |
|
|
stv680->scratch_use++;
|
1096 |
|
|
if (stv680->scratch_use >= STV680_NUMSCRATCH)
|
1097 |
|
|
stv680->scratch_use = 0;
|
1098 |
|
|
if (errors > STV680_MAX_ERRORS) {
|
1099 |
|
|
errors = 0;
|
1100 |
|
|
PDEBUG (2, "STV(i): too many errors, restarting capture");
|
1101 |
|
|
stv680_stop_stream (stv680);
|
1102 |
|
|
stv680_start_stream (stv680);
|
1103 |
|
|
}
|
1104 |
|
|
} /* else */
|
1105 |
|
|
} /* while */
|
1106 |
|
|
return 0;
|
1107 |
|
|
}
|
1108 |
|
|
|
1109 |
|
|
/*********************************************************************
|
1110 |
|
|
* Video4Linux
|
1111 |
|
|
*********************************************************************/
|
1112 |
|
|
|
1113 |
|
|
static int stv_open (struct video_device *dev, int flags)
|
1114 |
|
|
{
|
1115 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) dev;
|
1116 |
|
|
int err = 0;
|
1117 |
|
|
|
1118 |
|
|
/* we are called with the BKL held */
|
1119 |
|
|
MOD_INC_USE_COUNT;
|
1120 |
|
|
stv680->user = 1;
|
1121 |
|
|
err = stv_init (stv680); /* main initialization routine for camera */
|
1122 |
|
|
|
1123 |
|
|
if (err >= 0) {
|
1124 |
|
|
stv680->fbuf = rvmalloc (stv680->maxframesize * STV680_NUMFRAMES);
|
1125 |
|
|
if (!stv680->fbuf) {
|
1126 |
|
|
PDEBUG (0, "STV(e): Could not rvmalloc frame bufer");
|
1127 |
|
|
err = -ENOMEM;
|
1128 |
|
|
}
|
1129 |
|
|
}
|
1130 |
|
|
if (err) {
|
1131 |
|
|
MOD_DEC_USE_COUNT;
|
1132 |
|
|
stv680->user = 0;
|
1133 |
|
|
}
|
1134 |
|
|
|
1135 |
|
|
return err;
|
1136 |
|
|
}
|
1137 |
|
|
|
1138 |
|
|
static void stv_close (struct video_device *dev)
|
1139 |
|
|
{
|
1140 |
|
|
/* called with BKL held */
|
1141 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) dev;
|
1142 |
|
|
int i;
|
1143 |
|
|
|
1144 |
|
|
for (i = 0; i < STV680_NUMFRAMES; i++)
|
1145 |
|
|
stv680->frame[i].grabstate = FRAME_UNUSED;
|
1146 |
|
|
if (stv680->streaming && !stv680->removed)
|
1147 |
|
|
stv680_stop_stream (stv680);
|
1148 |
|
|
|
1149 |
|
|
if ((!stv680->removed) && (i = stv_stop_video (stv680)) < 0)
|
1150 |
|
|
PDEBUG (1, "STV(e): stop_video failed in stv_close");
|
1151 |
|
|
|
1152 |
|
|
rvfree (stv680->fbuf, stv680->maxframesize * STV680_NUMFRAMES);
|
1153 |
|
|
stv680->user = 0;
|
1154 |
|
|
|
1155 |
|
|
if (stv680->removed) {
|
1156 |
|
|
video_unregister_device (&stv680->vdev);
|
1157 |
|
|
kfree (stv680);
|
1158 |
|
|
stv680 = NULL;
|
1159 |
|
|
PDEBUG (0, "STV(i): device unregistered");
|
1160 |
|
|
}
|
1161 |
|
|
MOD_DEC_USE_COUNT;
|
1162 |
|
|
}
|
1163 |
|
|
|
1164 |
|
|
static long stv680_write (struct video_device *dev, const char *buf, unsigned long count, int noblock)
|
1165 |
|
|
{
|
1166 |
|
|
return -EINVAL;
|
1167 |
|
|
}
|
1168 |
|
|
|
1169 |
|
|
static int stv680_ioctl (struct video_device *vdev, unsigned int cmd, void *arg)
|
1170 |
|
|
{
|
1171 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) vdev;
|
1172 |
|
|
|
1173 |
|
|
if (!stv680->udev)
|
1174 |
|
|
return -EIO;
|
1175 |
|
|
|
1176 |
|
|
if (stv680->removed)
|
1177 |
|
|
return -ENODEV;
|
1178 |
|
|
|
1179 |
|
|
switch (cmd) {
|
1180 |
|
|
case VIDIOCGCAP:{
|
1181 |
|
|
struct video_capability b;
|
1182 |
|
|
|
1183 |
|
|
strcpy (b.name, stv680->camera_name);
|
1184 |
|
|
b.type = VID_TYPE_CAPTURE;
|
1185 |
|
|
b.channels = 1;
|
1186 |
|
|
b.audios = 0;
|
1187 |
|
|
b.maxwidth = stv680->maxwidth;
|
1188 |
|
|
b.maxheight = stv680->maxheight;
|
1189 |
|
|
b.minwidth = stv680->maxwidth / 2;
|
1190 |
|
|
b.minheight = stv680->maxheight / 2;
|
1191 |
|
|
|
1192 |
|
|
if (copy_to_user (arg, &b, sizeof (b))) {
|
1193 |
|
|
PDEBUG (2, "STV(e): VIDIOCGGAP failed");
|
1194 |
|
|
return -EFAULT;
|
1195 |
|
|
}
|
1196 |
|
|
return 0;
|
1197 |
|
|
}
|
1198 |
|
|
case VIDIOCGCHAN:{
|
1199 |
|
|
struct video_channel v;
|
1200 |
|
|
|
1201 |
|
|
if (copy_from_user (&v, arg, sizeof (v)))
|
1202 |
|
|
return -EFAULT;
|
1203 |
|
|
if (v.channel != 0)
|
1204 |
|
|
return -EINVAL;
|
1205 |
|
|
|
1206 |
|
|
v.flags = 0;
|
1207 |
|
|
v.tuners = 0;
|
1208 |
|
|
v.type = VIDEO_TYPE_CAMERA;
|
1209 |
|
|
strcpy (v.name, "STV Camera");
|
1210 |
|
|
|
1211 |
|
|
if (copy_to_user (arg, &v, sizeof (v))) {
|
1212 |
|
|
PDEBUG (2, "STV(e): VIDIOCGCHAN failed");
|
1213 |
|
|
return -EFAULT;
|
1214 |
|
|
}
|
1215 |
|
|
return 0;
|
1216 |
|
|
}
|
1217 |
|
|
case VIDIOCSCHAN:{
|
1218 |
|
|
int v;
|
1219 |
|
|
|
1220 |
|
|
if (copy_from_user (&v, arg, sizeof (v))) {
|
1221 |
|
|
PDEBUG (2, "STV(e): VIDIOCSCHAN failed");
|
1222 |
|
|
return -EFAULT;
|
1223 |
|
|
}
|
1224 |
|
|
if (v != 0)
|
1225 |
|
|
return -EINVAL;
|
1226 |
|
|
|
1227 |
|
|
return 0;
|
1228 |
|
|
}
|
1229 |
|
|
case VIDIOCGPICT:{
|
1230 |
|
|
struct video_picture p;
|
1231 |
|
|
|
1232 |
|
|
stv680_get_pict (stv680, &p);
|
1233 |
|
|
if (copy_to_user (arg, &p, sizeof (p))) {
|
1234 |
|
|
PDEBUG (2, "STV(e): VIDIOCGPICT failed");
|
1235 |
|
|
return -EFAULT;
|
1236 |
|
|
}
|
1237 |
|
|
return 0;
|
1238 |
|
|
}
|
1239 |
|
|
case VIDIOCSPICT:{
|
1240 |
|
|
struct video_picture p;
|
1241 |
|
|
|
1242 |
|
|
if (copy_from_user (&p, arg, sizeof (p))) {
|
1243 |
|
|
PDEBUG (2, "STV(e): VIDIOCSPICT failed");
|
1244 |
|
|
return -EFAULT;
|
1245 |
|
|
}
|
1246 |
|
|
PDEBUG (2, "STV(i): palette set to %i in VIDIOSPICT", p.palette);
|
1247 |
|
|
|
1248 |
|
|
if (stv680_set_pict (stv680, &p))
|
1249 |
|
|
return -EINVAL;
|
1250 |
|
|
return 0;
|
1251 |
|
|
}
|
1252 |
|
|
case VIDIOCSWIN:{
|
1253 |
|
|
struct video_window vw;
|
1254 |
|
|
|
1255 |
|
|
if (copy_from_user (&vw, arg, sizeof (vw)))
|
1256 |
|
|
return -EFAULT;
|
1257 |
|
|
if (vw.flags)
|
1258 |
|
|
return -EINVAL;
|
1259 |
|
|
if (vw.clipcount)
|
1260 |
|
|
return -EINVAL;
|
1261 |
|
|
if (vw.width != stv680->vwidth) {
|
1262 |
|
|
if (stv680_set_size (stv680, vw.width, vw.height)) {
|
1263 |
|
|
PDEBUG (2, "STV(e): failed (from user) set size in VIDIOCSWIN");
|
1264 |
|
|
return -EINVAL;
|
1265 |
|
|
}
|
1266 |
|
|
}
|
1267 |
|
|
return 0;
|
1268 |
|
|
}
|
1269 |
|
|
case VIDIOCGWIN:{
|
1270 |
|
|
struct video_window vw;
|
1271 |
|
|
|
1272 |
|
|
vw.x = 0; /* FIXME */
|
1273 |
|
|
vw.y = 0;
|
1274 |
|
|
vw.chromakey = 0;
|
1275 |
|
|
vw.flags = 0;
|
1276 |
|
|
vw.clipcount = 0;
|
1277 |
|
|
vw.width = stv680->vwidth;
|
1278 |
|
|
vw.height = stv680->vheight;
|
1279 |
|
|
|
1280 |
|
|
if (copy_to_user (arg, &vw, sizeof (vw))) {
|
1281 |
|
|
PDEBUG (2, "STV(e): VIDIOCGWIN failed");
|
1282 |
|
|
return -EFAULT;
|
1283 |
|
|
}
|
1284 |
|
|
return 0;
|
1285 |
|
|
}
|
1286 |
|
|
case VIDIOCGMBUF:{
|
1287 |
|
|
struct video_mbuf vm;
|
1288 |
|
|
int i;
|
1289 |
|
|
|
1290 |
|
|
memset (&vm, 0, sizeof (vm));
|
1291 |
|
|
vm.size = STV680_NUMFRAMES * stv680->maxframesize;
|
1292 |
|
|
vm.frames = STV680_NUMFRAMES;
|
1293 |
|
|
for (i = 0; i < STV680_NUMFRAMES; i++)
|
1294 |
|
|
vm.offsets[i] = stv680->maxframesize * i;
|
1295 |
|
|
|
1296 |
|
|
if (copy_to_user ((void *) arg, (void *) &vm, sizeof (vm))) {
|
1297 |
|
|
PDEBUG (2, "STV(e): VIDIOCGMBUF failed");
|
1298 |
|
|
return -EFAULT;
|
1299 |
|
|
}
|
1300 |
|
|
|
1301 |
|
|
return 0;
|
1302 |
|
|
}
|
1303 |
|
|
case VIDIOCMCAPTURE:{
|
1304 |
|
|
struct video_mmap vm;
|
1305 |
|
|
|
1306 |
|
|
if (copy_from_user (&vm, arg, sizeof (vm))) {
|
1307 |
|
|
PDEBUG (2, "STV(e): VIDIOCMCAPTURE failed");
|
1308 |
|
|
return -EFAULT;
|
1309 |
|
|
}
|
1310 |
|
|
if (vm.format != STV_VIDEO_PALETTE) {
|
1311 |
|
|
PDEBUG (2, "STV(i): VIDIOCMCAPTURE vm.format (%i) != VIDEO_PALETTE (%i)",
|
1312 |
|
|
vm.format, STV_VIDEO_PALETTE);
|
1313 |
|
|
if ((vm.format == 3) && (swapRGB_on == 0)) {
|
1314 |
|
|
PDEBUG (2, "STV(i): VIDIOCMCAPTURE swapRGB is (auto) ON");
|
1315 |
|
|
/* this may fix those apps (e.g., xawtv) that want BGR */
|
1316 |
|
|
swapRGB = 1;
|
1317 |
|
|
}
|
1318 |
|
|
return -EINVAL;
|
1319 |
|
|
}
|
1320 |
|
|
if (vm.frame >= STV680_NUMFRAMES) {
|
1321 |
|
|
PDEBUG (2, "STV(e): VIDIOCMCAPTURE vm.frame > NUMFRAMES");
|
1322 |
|
|
return -EINVAL;
|
1323 |
|
|
}
|
1324 |
|
|
if ((stv680->frame[vm.frame].grabstate == FRAME_ERROR)
|
1325 |
|
|
|| (stv680->frame[vm.frame].grabstate == FRAME_GRABBING)) {
|
1326 |
|
|
PDEBUG (2, "STV(e): VIDIOCMCAPTURE grabstate (%i) error",
|
1327 |
|
|
stv680->frame[vm.frame].grabstate);
|
1328 |
|
|
return -EBUSY;
|
1329 |
|
|
}
|
1330 |
|
|
/* Is this according to the v4l spec??? */
|
1331 |
|
|
if (stv680->vwidth != vm.width) {
|
1332 |
|
|
if (stv680_set_size (stv680, vm.width, vm.height)) {
|
1333 |
|
|
PDEBUG (2, "STV(e): VIDIOCMCAPTURE set_size failed");
|
1334 |
|
|
return -EINVAL;
|
1335 |
|
|
}
|
1336 |
|
|
}
|
1337 |
|
|
stv680->frame[vm.frame].grabstate = FRAME_READY;
|
1338 |
|
|
|
1339 |
|
|
if (!stv680->streaming)
|
1340 |
|
|
stv680_start_stream (stv680);
|
1341 |
|
|
|
1342 |
|
|
return 0;
|
1343 |
|
|
}
|
1344 |
|
|
case VIDIOCSYNC:{
|
1345 |
|
|
int frame, ret = 0;
|
1346 |
|
|
|
1347 |
|
|
if (copy_from_user ((void *) &frame, arg, sizeof (int))) {
|
1348 |
|
|
PDEBUG (2, "STV(e): VIDIOCSYNC failed");
|
1349 |
|
|
return -EFAULT;
|
1350 |
|
|
}
|
1351 |
|
|
if (frame < 0 || frame >= STV680_NUMFRAMES) {
|
1352 |
|
|
PDEBUG (2, "STV(e): Bad frame # in VIDIOCSYNC");
|
1353 |
|
|
return -EINVAL;
|
1354 |
|
|
}
|
1355 |
|
|
ret = stv680_newframe (stv680, frame);
|
1356 |
|
|
stv680->frame[frame].grabstate = FRAME_UNUSED;
|
1357 |
|
|
return ret;
|
1358 |
|
|
}
|
1359 |
|
|
case VIDIOCGFBUF:{
|
1360 |
|
|
struct video_buffer vb;
|
1361 |
|
|
|
1362 |
|
|
memset (&vb, 0, sizeof (vb));
|
1363 |
|
|
vb.base = NULL; /* frame buffer not supported, not used */
|
1364 |
|
|
|
1365 |
|
|
if (copy_to_user ((void *) arg, (void *) &vb, sizeof (vb))) {
|
1366 |
|
|
PDEBUG (2, "STV(e): VIDIOCSYNC failed");
|
1367 |
|
|
return -EFAULT;
|
1368 |
|
|
}
|
1369 |
|
|
return 0;
|
1370 |
|
|
}
|
1371 |
|
|
case VIDIOCKEY:
|
1372 |
|
|
return 0;
|
1373 |
|
|
case VIDIOCCAPTURE:
|
1374 |
|
|
{
|
1375 |
|
|
PDEBUG (2, "STV(e): VIDIOCCAPTURE failed");
|
1376 |
|
|
return -EINVAL;
|
1377 |
|
|
}
|
1378 |
|
|
case VIDIOCSFBUF:
|
1379 |
|
|
return -EINVAL;
|
1380 |
|
|
case VIDIOCGTUNER:
|
1381 |
|
|
case VIDIOCSTUNER:
|
1382 |
|
|
return -EINVAL;
|
1383 |
|
|
case VIDIOCGFREQ:
|
1384 |
|
|
case VIDIOCSFREQ:
|
1385 |
|
|
return -EINVAL;
|
1386 |
|
|
case VIDIOCGAUDIO:
|
1387 |
|
|
case VIDIOCSAUDIO:
|
1388 |
|
|
return -EINVAL;
|
1389 |
|
|
default:
|
1390 |
|
|
return -ENOIOCTLCMD;
|
1391 |
|
|
} /* end switch */
|
1392 |
|
|
|
1393 |
|
|
return 0;
|
1394 |
|
|
}
|
1395 |
|
|
|
1396 |
|
|
static int stv680_mmap (struct video_device *dev, const char *adr, unsigned long size)
|
1397 |
|
|
{
|
1398 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) dev;
|
1399 |
|
|
unsigned long start = (unsigned long) adr;
|
1400 |
|
|
unsigned long page, pos;
|
1401 |
|
|
|
1402 |
|
|
down (&stv680->lock);
|
1403 |
|
|
|
1404 |
|
|
if (stv680->udev == NULL) {
|
1405 |
|
|
up (&stv680->lock);
|
1406 |
|
|
return -EIO;
|
1407 |
|
|
}
|
1408 |
|
|
if (size > (((STV680_NUMFRAMES * stv680->maxframesize) + PAGE_SIZE - 1)
|
1409 |
|
|
& ~(PAGE_SIZE - 1))) {
|
1410 |
|
|
up (&stv680->lock);
|
1411 |
|
|
return -EINVAL;
|
1412 |
|
|
}
|
1413 |
|
|
pos = (unsigned long) stv680->fbuf;
|
1414 |
|
|
while (size > 0) {
|
1415 |
|
|
page = kvirt_to_pa (pos);
|
1416 |
|
|
if (remap_page_range (start, page, PAGE_SIZE, PAGE_SHARED)) {
|
1417 |
|
|
up (&stv680->lock);
|
1418 |
|
|
return -EAGAIN;
|
1419 |
|
|
}
|
1420 |
|
|
start += PAGE_SIZE;
|
1421 |
|
|
pos += PAGE_SIZE;
|
1422 |
|
|
if (size > PAGE_SIZE)
|
1423 |
|
|
size -= PAGE_SIZE;
|
1424 |
|
|
else
|
1425 |
|
|
size = 0;
|
1426 |
|
|
}
|
1427 |
|
|
up (&stv680->lock);
|
1428 |
|
|
|
1429 |
|
|
return 0;
|
1430 |
|
|
}
|
1431 |
|
|
|
1432 |
|
|
static long stv680_read (struct video_device *dev, char *buf, unsigned long count, int noblock)
|
1433 |
|
|
{
|
1434 |
|
|
unsigned long int realcount = count;
|
1435 |
|
|
int ret = 0;
|
1436 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) dev;
|
1437 |
|
|
unsigned long int i;
|
1438 |
|
|
|
1439 |
|
|
if (STV680_NUMFRAMES != 2) {
|
1440 |
|
|
PDEBUG (0, "STV(e): STV680_NUMFRAMES needs to be 2!");
|
1441 |
|
|
return -1;
|
1442 |
|
|
}
|
1443 |
|
|
if (stv680->udev == NULL)
|
1444 |
|
|
return -EIO;
|
1445 |
|
|
if (realcount > (stv680->vwidth * stv680->vheight * 3))
|
1446 |
|
|
realcount = stv680->vwidth * stv680->vheight * 3;
|
1447 |
|
|
|
1448 |
|
|
/* Shouldn't happen: */
|
1449 |
|
|
if (stv680->frame[0].grabstate == FRAME_GRABBING) {
|
1450 |
|
|
PDEBUG (2, "STV(e): FRAME_GRABBING in stv680_read");
|
1451 |
|
|
return -EBUSY;
|
1452 |
|
|
}
|
1453 |
|
|
stv680->frame[0].grabstate = FRAME_READY;
|
1454 |
|
|
stv680->frame[1].grabstate = FRAME_UNUSED;
|
1455 |
|
|
stv680->curframe = 0;
|
1456 |
|
|
|
1457 |
|
|
if (!stv680->streaming)
|
1458 |
|
|
stv680_start_stream (stv680);
|
1459 |
|
|
|
1460 |
|
|
if (!stv680->streaming) {
|
1461 |
|
|
ret = stv680_newframe (stv680, 0); /* ret should = 0 */
|
1462 |
|
|
}
|
1463 |
|
|
|
1464 |
|
|
ret = stv680_newframe (stv680, 0);
|
1465 |
|
|
|
1466 |
|
|
if (!ret) {
|
1467 |
|
|
if ((i = copy_to_user (buf, stv680->frame[0].data, realcount)) != 0) {
|
1468 |
|
|
PDEBUG (2, "STV(e): copy_to_user frame 0 failed, ret count = %li", i);
|
1469 |
|
|
return -EFAULT;
|
1470 |
|
|
}
|
1471 |
|
|
} else {
|
1472 |
|
|
realcount = ret;
|
1473 |
|
|
}
|
1474 |
|
|
stv680->frame[0].grabstate = FRAME_UNUSED;
|
1475 |
|
|
return realcount;
|
1476 |
|
|
} /* stv680_read */
|
1477 |
|
|
|
1478 |
|
|
static int stv_init_done (struct video_device *dev)
|
1479 |
|
|
{
|
1480 |
|
|
|
1481 |
|
|
#if defined(CONFIG_PROC_FS) && defined(CONFIG_VIDEO_PROC_FS)
|
1482 |
|
|
if (create_proc_stv680_cam ((struct usb_stv *) dev) < 0)
|
1483 |
|
|
return -1;
|
1484 |
|
|
#endif
|
1485 |
|
|
return 0;
|
1486 |
|
|
}
|
1487 |
|
|
|
1488 |
|
|
static struct video_device stv680_template = {
|
1489 |
|
|
owner: THIS_MODULE,
|
1490 |
|
|
name: "STV0680 USB camera",
|
1491 |
|
|
type: VID_TYPE_CAPTURE,
|
1492 |
|
|
hardware: VID_HARDWARE_SE401,
|
1493 |
|
|
open: stv_open,
|
1494 |
|
|
close: stv_close,
|
1495 |
|
|
read: stv680_read,
|
1496 |
|
|
write: stv680_write,
|
1497 |
|
|
ioctl: stv680_ioctl,
|
1498 |
|
|
mmap: stv680_mmap,
|
1499 |
|
|
initialize: stv_init_done,
|
1500 |
|
|
};
|
1501 |
|
|
|
1502 |
|
|
static void *stv680_probe (struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *id)
|
1503 |
|
|
{
|
1504 |
|
|
struct usb_interface_descriptor *interface;
|
1505 |
|
|
struct usb_stv *stv680;
|
1506 |
|
|
char *camera_name = NULL;
|
1507 |
|
|
|
1508 |
|
|
/* We don't handle multi-config cameras */
|
1509 |
|
|
if (dev->descriptor.bNumConfigurations != 1) {
|
1510 |
|
|
PDEBUG (0, "STV(e): Number of Configurations != 1");
|
1511 |
|
|
return NULL;
|
1512 |
|
|
}
|
1513 |
|
|
|
1514 |
|
|
interface = &dev->actconfig->interface[ifnum].altsetting[0];
|
1515 |
|
|
/* Is it a STV680? */
|
1516 |
|
|
if ((dev->descriptor.idVendor == USB_PENCAM_VENDOR_ID) && (dev->descriptor.idProduct == USB_PENCAM_PRODUCT_ID)) {
|
1517 |
|
|
camera_name = "STV0680";
|
1518 |
|
|
PDEBUG (0, "STV(i): STV0680 camera found.");
|
1519 |
|
|
} else {
|
1520 |
|
|
PDEBUG (0, "STV(e): Vendor/Product ID do not match STV0680 values.");
|
1521 |
|
|
PDEBUG (0, "STV(e): Check that the STV0680 camera is connected to the computer.");
|
1522 |
|
|
return NULL;
|
1523 |
|
|
}
|
1524 |
|
|
/* We found one */
|
1525 |
|
|
if ((stv680 = kmalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) {
|
1526 |
|
|
PDEBUG (0, "STV(e): couldn't kmalloc stv680 struct.");
|
1527 |
|
|
return NULL;
|
1528 |
|
|
}
|
1529 |
|
|
|
1530 |
|
|
memset (stv680, 0, sizeof (*stv680));
|
1531 |
|
|
|
1532 |
|
|
stv680->udev = dev;
|
1533 |
|
|
stv680->camera_name = camera_name;
|
1534 |
|
|
|
1535 |
|
|
memcpy (&stv680->vdev, &stv680_template, sizeof (stv680_template));
|
1536 |
|
|
memcpy (stv680->vdev.name, stv680->camera_name, strlen (stv680->camera_name));
|
1537 |
|
|
init_waitqueue_head (&stv680->wq);
|
1538 |
|
|
init_MUTEX (&stv680->lock);
|
1539 |
|
|
wmb ();
|
1540 |
|
|
|
1541 |
|
|
if (video_register_device (&stv680->vdev, VFL_TYPE_GRABBER, video_nr) == -1) {
|
1542 |
|
|
kfree (stv680);
|
1543 |
|
|
PDEBUG (0, "STV(e): video_register_device failed");
|
1544 |
|
|
return NULL;
|
1545 |
|
|
}
|
1546 |
|
|
PDEBUG (0, "STV(i): registered new video device: video%d", stv680->vdev.minor);
|
1547 |
|
|
|
1548 |
|
|
return stv680;
|
1549 |
|
|
}
|
1550 |
|
|
|
1551 |
|
|
static inline void usb_stv680_remove_disconnected (struct usb_stv *stv680)
|
1552 |
|
|
{
|
1553 |
|
|
int i;
|
1554 |
|
|
|
1555 |
|
|
stv680->udev = NULL;
|
1556 |
|
|
stv680->frame[0].grabstate = FRAME_ERROR;
|
1557 |
|
|
stv680->frame[1].grabstate = FRAME_ERROR;
|
1558 |
|
|
stv680->streaming = 0;
|
1559 |
|
|
|
1560 |
|
|
wake_up_interruptible (&stv680->wq);
|
1561 |
|
|
|
1562 |
|
|
for (i = 0; i < STV680_NUMSBUF; i++)
|
1563 |
|
|
if (stv680->urb[i]) {
|
1564 |
|
|
stv680->urb[i]->next = NULL;
|
1565 |
|
|
usb_unlink_urb (stv680->urb[i]);
|
1566 |
|
|
usb_free_urb (stv680->urb[i]);
|
1567 |
|
|
stv680->urb[i] = NULL;
|
1568 |
|
|
kfree (stv680->sbuf[i].data);
|
1569 |
|
|
}
|
1570 |
|
|
for (i = 0; i < STV680_NUMSCRATCH; i++)
|
1571 |
|
|
if (stv680->scratch[i].data) {
|
1572 |
|
|
kfree (stv680->scratch[i].data);
|
1573 |
|
|
}
|
1574 |
|
|
PDEBUG (0, "STV(i): %s disconnected", stv680->camera_name);
|
1575 |
|
|
|
1576 |
|
|
#if defined(CONFIG_PROC_FS) && defined(CONFIG_VIDEO_PROC_FS)
|
1577 |
|
|
destroy_proc_stv680_cam (stv680);
|
1578 |
|
|
#endif
|
1579 |
|
|
/* Free the memory */
|
1580 |
|
|
kfree (stv680);
|
1581 |
|
|
}
|
1582 |
|
|
|
1583 |
|
|
static void stv680_disconnect (struct usb_device *dev, void *ptr)
|
1584 |
|
|
{
|
1585 |
|
|
struct usb_stv *stv680 = (struct usb_stv *) ptr;
|
1586 |
|
|
int i;
|
1587 |
|
|
|
1588 |
|
|
lock_kernel ();
|
1589 |
|
|
/* We don't want people trying to open up the device */
|
1590 |
|
|
if (!stv680->user) {
|
1591 |
|
|
video_unregister_device (&stv680->vdev);
|
1592 |
|
|
usb_stv680_remove_disconnected (stv680);
|
1593 |
|
|
} else {
|
1594 |
|
|
stv680->removed = 1;
|
1595 |
|
|
for( i = 0; i < STV680_NUMSBUF; i++)
|
1596 |
|
|
usb_unlink_urb(stv680->urb[i]);
|
1597 |
|
|
wake_up_interruptible (&stv680->wq);
|
1598 |
|
|
}
|
1599 |
|
|
unlock_kernel ();
|
1600 |
|
|
}
|
1601 |
|
|
|
1602 |
|
|
static struct usb_driver stv680_driver = {
|
1603 |
|
|
name: "stv680",
|
1604 |
|
|
probe: stv680_probe,
|
1605 |
|
|
disconnect: stv680_disconnect,
|
1606 |
|
|
id_table: device_table
|
1607 |
|
|
};
|
1608 |
|
|
|
1609 |
|
|
/********************************************************************
|
1610 |
|
|
* Module routines
|
1611 |
|
|
********************************************************************/
|
1612 |
|
|
|
1613 |
|
|
static int __init usb_stv680_init (void)
|
1614 |
|
|
{
|
1615 |
|
|
#if defined(CONFIG_PROC_FS) && defined(CONFIG_VIDEO_PROC_FS)
|
1616 |
|
|
if (proc_stv680_create () < 0)
|
1617 |
|
|
return -1;
|
1618 |
|
|
#endif
|
1619 |
|
|
if (usb_register (&stv680_driver) < 0) {
|
1620 |
|
|
PDEBUG (0, "STV(e): Could not setup STV0680 driver");
|
1621 |
|
|
return -1;
|
1622 |
|
|
}
|
1623 |
|
|
PDEBUG (0, "STV(i): usb camera driver version %s registering", DRIVER_VERSION);
|
1624 |
|
|
|
1625 |
|
|
info(DRIVER_DESC " " DRIVER_VERSION);
|
1626 |
|
|
return 0;
|
1627 |
|
|
}
|
1628 |
|
|
|
1629 |
|
|
static void __exit usb_stv680_exit (void)
|
1630 |
|
|
{
|
1631 |
|
|
usb_deregister (&stv680_driver);
|
1632 |
|
|
PDEBUG (0, "STV(i): driver deregistered");
|
1633 |
|
|
|
1634 |
|
|
#if defined(CONFIG_PROC_FS) && defined(CONFIG_VIDEO_PROC_FS)
|
1635 |
|
|
proc_stv680_destroy ();
|
1636 |
|
|
#endif
|
1637 |
|
|
}
|
1638 |
|
|
|
1639 |
|
|
module_init (usb_stv680_init);
|
1640 |
|
|
module_exit (usb_stv680_exit);
|