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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | /*************************************************************************** * V4L2 driver for SN9C10x PC Camera Controllers * * * * Copyright (C) 2004-2006 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 _SN9C102_H_ #define _SN9C102_H_ #include <linux/version.h> #include <linux/usb.h> #include <linux/videodev2.h> #include <media/v4l2-common.h> #include <linux/device.h> #include <linux/list.h> #include <linux/spinlock.h> #include <linux/time.h> #include <linux/wait.h> #include <linux/types.h> #include <linux/param.h> #include <linux/rwsem.h> #include <asm/semaphore.h> #include "sn9c102_sensor.h" /*****************************************************************************/ #define SN9C102_DEBUG #define SN9C102_DEBUG_LEVEL 2 #define SN9C102_MAX_DEVICES 64 #define SN9C102_PRESERVE_IMGSCALE 0 #define SN9C102_FORCE_MUNMAP 0 #define SN9C102_MAX_FRAMES 32 #define SN9C102_URBS 2 #define SN9C102_ISO_PACKETS 7 #define SN9C102_ALTERNATE_SETTING 8 #define SN9C102_URB_TIMEOUT msecs_to_jiffies(2 * SN9C102_ISO_PACKETS) #define SN9C102_CTRL_TIMEOUT 300 /*****************************************************************************/ enum sn9c102_bridge { BRIDGE_SN9C101 = 0x01, BRIDGE_SN9C102 = 0x02, BRIDGE_SN9C103 = 0x04, }; SN9C102_ID_TABLE SN9C102_SENSOR_TABLE enum sn9c102_frame_state { F_UNUSED, F_QUEUED, F_GRABBING, F_DONE, F_ERROR, }; struct sn9c102_frame_t { void* bufmem; struct v4l2_buffer buf; enum sn9c102_frame_state state; struct list_head frame; unsigned long vma_use_count; }; enum sn9c102_dev_state { DEV_INITIALIZED = 0x01, DEV_DISCONNECTED = 0x02, DEV_MISCONFIGURED = 0x04, }; enum sn9c102_io_method { IO_NONE, IO_READ, IO_MMAP, }; enum sn9c102_stream_state { STREAM_OFF, STREAM_INTERRUPT, STREAM_ON, }; typedef char sn9c103_sof_header_t[18]; typedef char sn9c102_sof_header_t[12]; typedef char sn9c102_eof_header_t[4]; struct sn9c102_sysfs_attr { u8 reg, i2c_reg; sn9c103_sof_header_t frame_header; }; struct sn9c102_module_param { u8 force_munmap; }; static DECLARE_MUTEX(sn9c102_sysfs_lock); static DECLARE_RWSEM(sn9c102_disconnect); struct sn9c102_device { struct video_device* v4ldev; enum sn9c102_bridge bridge; struct sn9c102_sensor* sensor; struct usb_device* usbdev; struct urb* urb[SN9C102_URBS]; void* transfer_buffer[SN9C102_URBS]; u8* control_buffer; struct sn9c102_frame_t *frame_current, frame[SN9C102_MAX_FRAMES]; struct list_head inqueue, outqueue; u32 frame_count, nbuffers, nreadbuffers; enum sn9c102_io_method io; enum sn9c102_stream_state stream; struct v4l2_jpegcompression compression; struct sn9c102_sysfs_attr sysfs; sn9c103_sof_header_t sof_header; u16 reg[63]; struct sn9c102_module_param module_param; enum sn9c102_dev_state state; u8 users; struct semaphore dev_sem, fileop_sem; spinlock_t queue_lock; wait_queue_head_t open, wait_frame, wait_stream; }; /*****************************************************************************/ void sn9c102_attach_sensor(struct sn9c102_device* cam, struct sn9c102_sensor* sensor) { cam->sensor = sensor; cam->sensor->usbdev = cam->usbdev; } /*****************************************************************************/ #undef DBG #undef KDBG #ifdef SN9C102_DEBUG # define DBG(level, fmt, args...) \ do { \ if (debug >= (level)) { \ if ((level) == 1) \ dev_err(&cam->usbdev->dev, fmt "\n", ## args); \ else if ((level) == 2) \ dev_info(&cam->usbdev->dev, fmt "\n", ## args); \ else if ((level) >= 3) \ dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ __FUNCTION__, __LINE__ , ## args); \ } \ } while (0) # define V4LDBG(level, name, cmd) \ do { \ if (debug >= (level)) \ v4l_print_ioctl(name, cmd); \ } while (0) # define KDBG(level, fmt, args...) \ do { \ if (debug >= (level)) { \ if ((level) == 1 || (level) == 2) \ pr_info("sn9c102: " fmt "\n", ## args); \ else if ((level) == 3) \ pr_debug("sn9c102: [%s:%d] " fmt "\n", __FUNCTION__, \ __LINE__ , ## args); \ } \ } while (0) #else # define DBG(level, fmt, args...) do {;} while(0) # define V4LDBG(level, name, cmd) 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) /* placeholder */ #endif /* _SN9C102_H_ */ |