Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Zoran 364xx based USB webcam module version 0.72 |
| 3 | * |
| 4 | * Allows you to use your USB webcam with V4L2 applications |
| 5 | * This is still in heavy developpement ! |
| 6 | * |
| 7 | * Copyright (C) 2004 Antoine Jacquet <royale@zerezo.com> |
| 8 | * http://royale.zerezo.com/zr364xx/ |
| 9 | * |
| 10 | * Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers |
| 11 | * V4L2 version inspired by meye.c driver |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 26 | */ |
| 27 | |
| 28 | |
| 29 | #include <linux/version.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/usb.h> |
| 33 | #include <linux/vmalloc.h> |
| 34 | #include <linux/slab.h> |
| 35 | #include <linux/proc_fs.h> |
Antoine Jacquet | 2575f84 | 2007-03-05 06:32:29 -0300 | [diff] [blame] | 36 | #include <linux/highmem.h> |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 37 | #include <media/v4l2-common.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 38 | #include <media/v4l2-ioctl.h> |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 39 | |
| 40 | |
| 41 | /* Version Information */ |
| 42 | #define DRIVER_VERSION "v0.72" |
| 43 | #define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/" |
| 44 | #define DRIVER_DESC "Zoran 364xx" |
| 45 | |
| 46 | |
| 47 | /* Camera */ |
| 48 | #define FRAMES 2 |
| 49 | #define MAX_FRAME_SIZE 100000 |
| 50 | #define BUFFER_SIZE 0x1000 |
| 51 | #define CTRL_TIMEOUT 500 |
| 52 | |
| 53 | |
| 54 | /* Debug macro */ |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 55 | #define DBG(x...) if (debug) printk(KERN_INFO KBUILD_MODNAME x) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 56 | |
| 57 | |
| 58 | /* Init methods, need to find nicer names for these |
| 59 | * the exact names of the chipsets would be the best if someone finds it */ |
| 60 | #define METHOD0 0 |
| 61 | #define METHOD1 1 |
| 62 | #define METHOD2 2 |
| 63 | |
| 64 | |
| 65 | /* Module parameters */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 66 | static int debug; |
| 67 | static int mode; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 68 | |
| 69 | |
| 70 | /* Module parameters interface */ |
| 71 | module_param(debug, int, 0644); |
| 72 | MODULE_PARM_DESC(debug, "Debug level"); |
| 73 | module_param(mode, int, 0644); |
| 74 | MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480"); |
| 75 | |
| 76 | |
| 77 | /* Devices supported by this driver |
| 78 | * .driver_info contains the init method used by the camera */ |
| 79 | static struct usb_device_id device_table[] = { |
| 80 | {USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 }, |
| 81 | {USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 }, |
| 82 | {USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 }, |
| 83 | {USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 }, |
| 84 | {USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 }, |
| 85 | {USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 }, |
| 86 | {USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 }, |
| 87 | {USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 }, |
| 88 | {USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 }, |
| 89 | {USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 }, |
| 90 | {USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 }, |
| 91 | {USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 }, |
| 92 | {USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 }, |
| 93 | {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, |
| 94 | {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, |
| 95 | {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, |
Antoine Jacquet | bebeaea | 2007-06-25 16:00:34 -0300 | [diff] [blame] | 96 | {USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 }, |
Antoine Jacquet | 71c0447 | 2008-01-25 22:01:53 -0300 | [diff] [blame] | 97 | {USB_DEVICE(0x0a17, 0x004e), .driver_info = METHOD2 }, |
Antoine Jacquet | c0e0aff | 2008-01-25 22:03:10 -0300 | [diff] [blame] | 98 | {USB_DEVICE(0x041e, 0x405d), .driver_info = METHOD2 }, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 99 | {} /* Terminating entry */ |
| 100 | }; |
| 101 | |
| 102 | MODULE_DEVICE_TABLE(usb, device_table); |
| 103 | |
| 104 | |
| 105 | /* Camera stuff */ |
| 106 | struct zr364xx_camera { |
| 107 | struct usb_device *udev; /* save off the usb device pointer */ |
| 108 | struct usb_interface *interface;/* the interface for this device */ |
| 109 | struct video_device *vdev; /* v4l video device */ |
| 110 | u8 *framebuf; |
| 111 | int nb; |
| 112 | unsigned char *buffer; |
| 113 | int skip; |
| 114 | int brightness; |
| 115 | int width; |
| 116 | int height; |
| 117 | int method; |
| 118 | struct mutex lock; |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 119 | int users; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 120 | }; |
| 121 | |
| 122 | |
| 123 | /* function used to send initialisation commands to the camera */ |
| 124 | static int send_control_msg(struct usb_device *udev, u8 request, u16 value, |
| 125 | u16 index, unsigned char *cp, u16 size) |
| 126 | { |
| 127 | int status; |
| 128 | |
| 129 | unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL); |
| 130 | if (!transfer_buffer) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 131 | dev_err(&udev->dev, "kmalloc(%d) failed\n", size); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 132 | return -ENOMEM; |
| 133 | } |
| 134 | |
| 135 | memcpy(transfer_buffer, cp, size); |
| 136 | |
| 137 | status = usb_control_msg(udev, |
| 138 | usb_sndctrlpipe(udev, 0), |
| 139 | request, |
| 140 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 141 | USB_RECIP_DEVICE, value, index, |
| 142 | transfer_buffer, size, CTRL_TIMEOUT); |
| 143 | |
| 144 | kfree(transfer_buffer); |
| 145 | |
| 146 | if (status < 0) |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 147 | dev_err(&udev->dev, |
| 148 | "Failed sending control message, error %d.\n", status); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 149 | |
| 150 | return status; |
| 151 | } |
| 152 | |
| 153 | |
| 154 | /* Control messages sent to the camera to initialize it |
| 155 | * and launch the capture */ |
| 156 | typedef struct { |
| 157 | unsigned int value; |
| 158 | unsigned int size; |
| 159 | unsigned char *bytes; |
| 160 | } message; |
| 161 | |
| 162 | /* method 0 */ |
| 163 | static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; |
| 164 | static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 }; |
| 165 | static unsigned char m0d3[] = { 0, 0 }; |
| 166 | static message m0[] = { |
| 167 | {0x1f30, 0, NULL}, |
| 168 | {0xd000, 0, NULL}, |
| 169 | {0x3370, sizeof(m0d1), m0d1}, |
| 170 | {0x2000, 0, NULL}, |
| 171 | {0x2f0f, 0, NULL}, |
| 172 | {0x2610, sizeof(m0d2), m0d2}, |
| 173 | {0xe107, 0, NULL}, |
| 174 | {0x2502, 0, NULL}, |
| 175 | {0x1f70, 0, NULL}, |
| 176 | {0xd000, 0, NULL}, |
| 177 | {0x9a01, sizeof(m0d3), m0d3}, |
| 178 | {-1, -1, NULL} |
| 179 | }; |
| 180 | |
| 181 | /* method 1 */ |
| 182 | static unsigned char m1d1[] = { 0xff, 0xff }; |
| 183 | static unsigned char m1d2[] = { 0x00, 0x00 }; |
| 184 | static message m1[] = { |
| 185 | {0x1f30, 0, NULL}, |
| 186 | {0xd000, 0, NULL}, |
| 187 | {0xf000, 0, NULL}, |
| 188 | {0x2000, 0, NULL}, |
| 189 | {0x2f0f, 0, NULL}, |
| 190 | {0x2650, 0, NULL}, |
| 191 | {0xe107, 0, NULL}, |
| 192 | {0x2502, sizeof(m1d1), m1d1}, |
| 193 | {0x1f70, 0, NULL}, |
| 194 | {0xd000, 0, NULL}, |
| 195 | {0xd000, 0, NULL}, |
| 196 | {0xd000, 0, NULL}, |
| 197 | {0x9a01, sizeof(m1d2), m1d2}, |
| 198 | {-1, -1, NULL} |
| 199 | }; |
| 200 | |
| 201 | /* method 2 */ |
| 202 | static unsigned char m2d1[] = { 0xff, 0xff }; |
| 203 | static message m2[] = { |
| 204 | {0x1f30, 0, NULL}, |
| 205 | {0xf000, 0, NULL}, |
| 206 | {0x2000, 0, NULL}, |
| 207 | {0x2f0f, 0, NULL}, |
| 208 | {0x2650, 0, NULL}, |
| 209 | {0xe107, 0, NULL}, |
| 210 | {0x2502, sizeof(m2d1), m2d1}, |
| 211 | {0x1f70, 0, NULL}, |
| 212 | {-1, -1, NULL} |
| 213 | }; |
| 214 | |
| 215 | /* init table */ |
| 216 | static message *init[3] = { m0, m1, m2 }; |
| 217 | |
| 218 | |
| 219 | /* JPEG static data in header (Huffman table, etc) */ |
| 220 | static unsigned char header1[] = { |
| 221 | 0xFF, 0xD8, |
| 222 | /* |
| 223 | 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', |
| 224 | 0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88, |
| 225 | */ |
| 226 | 0xFF, 0xDB, 0x00, 0x84 |
| 227 | }; |
| 228 | static unsigned char header2[] = { |
| 229 | 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, |
| 230 | 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 231 | 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 232 | 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, |
| 233 | 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, |
| 234 | 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, |
| 235 | 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, |
| 236 | 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, |
| 237 | 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, |
| 238 | 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
| 239 | 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, |
| 240 | 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 241 | 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, |
| 242 | 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, |
| 243 | 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, |
| 244 | 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, |
| 245 | 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, |
| 246 | 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, |
| 247 | 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, |
| 248 | 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, |
| 249 | 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
| 250 | 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, |
| 251 | 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, |
| 252 | 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, |
| 253 | 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, |
| 254 | 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, |
| 255 | 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, |
| 256 | 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, |
| 257 | 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, |
| 258 | 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, |
| 259 | 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, |
| 260 | 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, |
| 261 | 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, |
| 262 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, |
| 263 | 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, |
| 264 | 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, |
| 265 | 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, |
| 266 | 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, |
| 267 | 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, |
| 268 | 0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, |
| 269 | 0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, |
| 270 | 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, |
| 271 | 0x00, 0x3F, 0x00 |
| 272 | }; |
| 273 | static unsigned char header3; |
| 274 | |
| 275 | |
| 276 | |
| 277 | /********************/ |
| 278 | /* V4L2 integration */ |
| 279 | /********************/ |
| 280 | |
| 281 | /* this function reads a full JPEG picture synchronously |
| 282 | * TODO: do it asynchronously... */ |
| 283 | static int read_frame(struct zr364xx_camera *cam, int framenum) |
| 284 | { |
| 285 | int i, n, temp, head, size, actual_length; |
Trent Piepho | 93566ad | 2007-03-07 18:19:49 -0300 | [diff] [blame] | 286 | unsigned char *ptr = NULL, *jpeg; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 287 | |
| 288 | redo: |
| 289 | /* hardware brightness */ |
| 290 | n = send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0); |
| 291 | temp = (0x60 << 8) + 127 - cam->brightness; |
| 292 | n = send_control_msg(cam->udev, 1, temp, 0, NULL, 0); |
| 293 | |
| 294 | /* during the first loop we are going to insert JPEG header */ |
| 295 | head = 0; |
| 296 | /* this is the place in memory where we are going to build |
| 297 | * the JPEG image */ |
| 298 | jpeg = cam->framebuf + framenum * MAX_FRAME_SIZE; |
| 299 | /* read data... */ |
| 300 | do { |
| 301 | n = usb_bulk_msg(cam->udev, |
| 302 | usb_rcvbulkpipe(cam->udev, 0x81), |
| 303 | cam->buffer, BUFFER_SIZE, &actual_length, |
| 304 | CTRL_TIMEOUT); |
| 305 | DBG("buffer : %d %d", cam->buffer[0], cam->buffer[1]); |
| 306 | DBG("bulk : n=%d size=%d", n, actual_length); |
| 307 | if (n < 0) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 308 | dev_err(&cam->udev->dev, "error reading bulk msg\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 309 | return 0; |
| 310 | } |
| 311 | if (actual_length < 0 || actual_length > BUFFER_SIZE) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 312 | dev_err(&cam->udev->dev, "wrong number of bytes\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | /* swap bytes if camera needs it */ |
Trent Piepho | 93566ad | 2007-03-07 18:19:49 -0300 | [diff] [blame] | 317 | if (cam->method == METHOD0) { |
| 318 | u16 *buf = (u16*)cam->buffer; |
| 319 | for (i = 0; i < BUFFER_SIZE/2; i++) |
| 320 | swab16s(buf + i); |
| 321 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 322 | |
| 323 | /* write the JPEG header */ |
| 324 | if (!head) { |
| 325 | DBG("jpeg header"); |
| 326 | ptr = jpeg; |
| 327 | memcpy(ptr, header1, sizeof(header1)); |
| 328 | ptr += sizeof(header1); |
| 329 | header3 = 0; |
| 330 | memcpy(ptr, &header3, 1); |
| 331 | ptr++; |
| 332 | memcpy(ptr, cam->buffer, 64); |
| 333 | ptr += 64; |
| 334 | header3 = 1; |
| 335 | memcpy(ptr, &header3, 1); |
| 336 | ptr++; |
| 337 | memcpy(ptr, cam->buffer + 64, 64); |
| 338 | ptr += 64; |
| 339 | memcpy(ptr, header2, sizeof(header2)); |
| 340 | ptr += sizeof(header2); |
| 341 | memcpy(ptr, cam->buffer + 128, |
| 342 | actual_length - 128); |
| 343 | ptr += actual_length - 128; |
| 344 | head = 1; |
| 345 | DBG("header : %d %d %d %d %d %d %d %d %d", |
| 346 | cam->buffer[0], cam->buffer[1], cam->buffer[2], |
| 347 | cam->buffer[3], cam->buffer[4], cam->buffer[5], |
| 348 | cam->buffer[6], cam->buffer[7], cam->buffer[8]); |
| 349 | } else { |
| 350 | memcpy(ptr, cam->buffer, actual_length); |
| 351 | ptr += actual_length; |
| 352 | } |
| 353 | } |
| 354 | /* ... until there is no more */ |
| 355 | while (actual_length == BUFFER_SIZE); |
| 356 | |
| 357 | /* we skip the 2 first frames which are usually buggy */ |
| 358 | if (cam->skip) { |
| 359 | cam->skip--; |
| 360 | goto redo; |
| 361 | } |
| 362 | |
| 363 | /* go back to find the JPEG EOI marker */ |
| 364 | size = ptr - jpeg; |
| 365 | ptr -= 2; |
| 366 | while (ptr > jpeg) { |
| 367 | if (*ptr == 0xFF && *(ptr + 1) == 0xD9 |
| 368 | && *(ptr + 2) == 0xFF) |
| 369 | break; |
| 370 | ptr--; |
| 371 | } |
| 372 | if (ptr == jpeg) |
| 373 | DBG("No EOI marker"); |
| 374 | |
| 375 | /* Sometimes there is junk data in the middle of the picture, |
| 376 | * we want to skip this bogus frames */ |
| 377 | while (ptr > jpeg) { |
| 378 | if (*ptr == 0xFF && *(ptr + 1) == 0xFF |
| 379 | && *(ptr + 2) == 0xFF) |
| 380 | break; |
| 381 | ptr--; |
| 382 | } |
| 383 | if (ptr != jpeg) { |
| 384 | DBG("Bogus frame ? %d", cam->nb); |
| 385 | goto redo; |
| 386 | } |
| 387 | |
| 388 | DBG("jpeg : %d %d %d %d %d %d %d %d", |
| 389 | jpeg[0], jpeg[1], jpeg[2], jpeg[3], |
| 390 | jpeg[4], jpeg[5], jpeg[6], jpeg[7]); |
| 391 | |
| 392 | return size; |
| 393 | } |
| 394 | |
| 395 | |
Al Viro | 97cf010 | 2008-03-29 03:10:48 +0000 | [diff] [blame] | 396 | static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t cnt, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 397 | loff_t * ppos) |
| 398 | { |
| 399 | unsigned long count = cnt; |
| 400 | struct video_device *vdev = video_devdata(file); |
| 401 | struct zr364xx_camera *cam; |
| 402 | |
| 403 | DBG("zr364xx_read: read %d bytes.", (int) count); |
| 404 | |
| 405 | if (vdev == NULL) |
| 406 | return -ENODEV; |
| 407 | cam = video_get_drvdata(vdev); |
| 408 | |
| 409 | if (!buf) |
| 410 | return -EINVAL; |
| 411 | |
| 412 | if (!count) |
| 413 | return -EINVAL; |
| 414 | |
| 415 | /* NoMan Sux ! */ |
| 416 | count = read_frame(cam, 0); |
| 417 | |
| 418 | if (copy_to_user(buf, cam->framebuf, count)) |
| 419 | return -EFAULT; |
| 420 | |
| 421 | return count; |
| 422 | } |
| 423 | |
| 424 | |
| 425 | static int zr364xx_vidioc_querycap(struct file *file, void *priv, |
| 426 | struct v4l2_capability *cap) |
| 427 | { |
| 428 | memset(cap, 0, sizeof(*cap)); |
| 429 | strcpy(cap->driver, DRIVER_DESC); |
| 430 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; |
| 431 | return 0; |
| 432 | } |
| 433 | |
| 434 | static int zr364xx_vidioc_enum_input(struct file *file, void *priv, |
| 435 | struct v4l2_input *i) |
| 436 | { |
| 437 | if (i->index != 0) |
| 438 | return -EINVAL; |
| 439 | memset(i, 0, sizeof(*i)); |
| 440 | i->index = 0; |
| 441 | strcpy(i->name, DRIVER_DESC " Camera"); |
| 442 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | static int zr364xx_vidioc_g_input(struct file *file, void *priv, |
| 447 | unsigned int *i) |
| 448 | { |
| 449 | *i = 0; |
| 450 | return 0; |
| 451 | } |
| 452 | |
| 453 | static int zr364xx_vidioc_s_input(struct file *file, void *priv, |
| 454 | unsigned int i) |
| 455 | { |
| 456 | if (i != 0) |
| 457 | return -EINVAL; |
| 458 | return 0; |
| 459 | } |
| 460 | |
| 461 | static int zr364xx_vidioc_queryctrl(struct file *file, void *priv, |
| 462 | struct v4l2_queryctrl *c) |
| 463 | { |
| 464 | struct video_device *vdev = video_devdata(file); |
| 465 | struct zr364xx_camera *cam; |
| 466 | |
| 467 | if (vdev == NULL) |
| 468 | return -ENODEV; |
| 469 | cam = video_get_drvdata(vdev); |
| 470 | |
| 471 | switch (c->id) { |
| 472 | case V4L2_CID_BRIGHTNESS: |
| 473 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 474 | strcpy(c->name, "Brightness"); |
| 475 | c->minimum = 0; |
| 476 | c->maximum = 127; |
| 477 | c->step = 1; |
| 478 | c->default_value = cam->brightness; |
| 479 | c->flags = 0; |
| 480 | break; |
| 481 | default: |
| 482 | return -EINVAL; |
| 483 | } |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | static int zr364xx_vidioc_s_ctrl(struct file *file, void *priv, |
| 488 | struct v4l2_control *c) |
| 489 | { |
| 490 | struct video_device *vdev = video_devdata(file); |
| 491 | struct zr364xx_camera *cam; |
| 492 | |
| 493 | if (vdev == NULL) |
| 494 | return -ENODEV; |
| 495 | cam = video_get_drvdata(vdev); |
| 496 | |
| 497 | switch (c->id) { |
| 498 | case V4L2_CID_BRIGHTNESS: |
| 499 | cam->brightness = c->value; |
| 500 | break; |
| 501 | default: |
| 502 | return -EINVAL; |
| 503 | } |
| 504 | return 0; |
| 505 | } |
| 506 | |
| 507 | static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv, |
| 508 | struct v4l2_control *c) |
| 509 | { |
| 510 | struct video_device *vdev = video_devdata(file); |
| 511 | struct zr364xx_camera *cam; |
| 512 | |
| 513 | if (vdev == NULL) |
| 514 | return -ENODEV; |
| 515 | cam = video_get_drvdata(vdev); |
| 516 | |
| 517 | switch (c->id) { |
| 518 | case V4L2_CID_BRIGHTNESS: |
| 519 | c->value = cam->brightness; |
| 520 | break; |
| 521 | default: |
| 522 | return -EINVAL; |
| 523 | } |
| 524 | return 0; |
| 525 | } |
| 526 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 527 | static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 528 | void *priv, struct v4l2_fmtdesc *f) |
| 529 | { |
| 530 | if (f->index > 0) |
| 531 | return -EINVAL; |
| 532 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 533 | return -EINVAL; |
| 534 | memset(f, 0, sizeof(*f)); |
| 535 | f->index = 0; |
| 536 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 537 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
| 538 | strcpy(f->description, "JPEG"); |
| 539 | f->pixelformat = V4L2_PIX_FMT_JPEG; |
| 540 | return 0; |
| 541 | } |
| 542 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 543 | static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 544 | struct v4l2_format *f) |
| 545 | { |
| 546 | struct video_device *vdev = video_devdata(file); |
| 547 | struct zr364xx_camera *cam; |
| 548 | |
| 549 | if (vdev == NULL) |
| 550 | return -ENODEV; |
| 551 | cam = video_get_drvdata(vdev); |
| 552 | |
| 553 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 554 | return -EINVAL; |
| 555 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) |
| 556 | return -EINVAL; |
| 557 | if (f->fmt.pix.field != V4L2_FIELD_ANY && |
| 558 | f->fmt.pix.field != V4L2_FIELD_NONE) |
| 559 | return -EINVAL; |
| 560 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 561 | f->fmt.pix.width = cam->width; |
| 562 | f->fmt.pix.height = cam->height; |
| 563 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 564 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 565 | f->fmt.pix.colorspace = 0; |
| 566 | f->fmt.pix.priv = 0; |
| 567 | return 0; |
| 568 | } |
| 569 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 570 | static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 571 | struct v4l2_format *f) |
| 572 | { |
| 573 | struct video_device *vdev = video_devdata(file); |
| 574 | struct zr364xx_camera *cam; |
| 575 | |
| 576 | if (vdev == NULL) |
| 577 | return -ENODEV; |
| 578 | cam = video_get_drvdata(vdev); |
| 579 | |
| 580 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 581 | return -EINVAL; |
| 582 | memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); |
| 583 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 584 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG; |
| 585 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 586 | f->fmt.pix.width = cam->width; |
| 587 | f->fmt.pix.height = cam->height; |
| 588 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 589 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 590 | f->fmt.pix.colorspace = 0; |
| 591 | f->fmt.pix.priv = 0; |
| 592 | return 0; |
| 593 | } |
| 594 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 595 | static int zr364xx_vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 596 | struct v4l2_format *f) |
| 597 | { |
| 598 | struct video_device *vdev = video_devdata(file); |
| 599 | struct zr364xx_camera *cam; |
| 600 | |
| 601 | if (vdev == NULL) |
| 602 | return -ENODEV; |
| 603 | cam = video_get_drvdata(vdev); |
| 604 | |
| 605 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 606 | return -EINVAL; |
| 607 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) |
| 608 | return -EINVAL; |
| 609 | if (f->fmt.pix.field != V4L2_FIELD_ANY && |
| 610 | f->fmt.pix.field != V4L2_FIELD_NONE) |
| 611 | return -EINVAL; |
| 612 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 613 | f->fmt.pix.width = cam->width; |
| 614 | f->fmt.pix.height = cam->height; |
| 615 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 616 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 617 | f->fmt.pix.colorspace = 0; |
| 618 | f->fmt.pix.priv = 0; |
| 619 | DBG("ok!"); |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | static int zr364xx_vidioc_streamon(struct file *file, void *priv, |
| 624 | enum v4l2_buf_type type) |
| 625 | { |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | static int zr364xx_vidioc_streamoff(struct file *file, void *priv, |
| 630 | enum v4l2_buf_type type) |
| 631 | { |
| 632 | return 0; |
| 633 | } |
| 634 | |
| 635 | |
| 636 | /* open the camera */ |
| 637 | static int zr364xx_open(struct inode *inode, struct file *file) |
| 638 | { |
| 639 | struct video_device *vdev = video_devdata(file); |
| 640 | struct zr364xx_camera *cam = video_get_drvdata(vdev); |
| 641 | struct usb_device *udev = cam->udev; |
| 642 | int i, err; |
| 643 | |
| 644 | DBG("zr364xx_open"); |
| 645 | |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 646 | mutex_lock(&cam->lock); |
| 647 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 648 | if (cam->users) { |
| 649 | err = -EBUSY; |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 650 | goto out; |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 651 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 652 | |
| 653 | if (!cam->framebuf) { |
| 654 | cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES); |
| 655 | if (!cam->framebuf) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 656 | dev_err(&cam->udev->dev, "vmalloc_32 failed!\n"); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 657 | err = -ENOMEM; |
| 658 | goto out; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 659 | } |
| 660 | } |
| 661 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 662 | for (i = 0; init[cam->method][i].size != -1; i++) { |
| 663 | err = |
| 664 | send_control_msg(udev, 1, init[cam->method][i].value, |
| 665 | 0, init[cam->method][i].bytes, |
| 666 | init[cam->method][i].size); |
| 667 | if (err < 0) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 668 | dev_err(&cam->udev->dev, |
| 669 | "error during open sequence: %d\n", i); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 670 | goto out; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 671 | } |
| 672 | } |
| 673 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 674 | cam->skip = 2; |
| 675 | cam->users++; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 676 | file->private_data = vdev; |
| 677 | |
| 678 | /* Added some delay here, since opening/closing the camera quickly, |
| 679 | * like Ekiga does during its startup, can crash the webcam |
| 680 | */ |
| 681 | mdelay(100); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 682 | err = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 683 | |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 684 | out: |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 685 | mutex_unlock(&cam->lock); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 686 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | |
| 690 | /* release the camera */ |
| 691 | static int zr364xx_release(struct inode *inode, struct file *file) |
| 692 | { |
| 693 | struct video_device *vdev = video_devdata(file); |
| 694 | struct zr364xx_camera *cam; |
| 695 | struct usb_device *udev; |
| 696 | int i, err; |
| 697 | |
| 698 | DBG("zr364xx_release"); |
| 699 | |
| 700 | if (vdev == NULL) |
| 701 | return -ENODEV; |
| 702 | cam = video_get_drvdata(vdev); |
| 703 | |
| 704 | udev = cam->udev; |
| 705 | |
| 706 | mutex_lock(&cam->lock); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 707 | |
| 708 | cam->users--; |
| 709 | file->private_data = NULL; |
| 710 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 711 | for (i = 0; i < 2; i++) { |
| 712 | err = |
| 713 | send_control_msg(udev, 1, init[cam->method][i].value, |
| 714 | 0, init[i][cam->method].bytes, |
| 715 | init[cam->method][i].size); |
| 716 | if (err < 0) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 717 | dev_err(&udev->dev, "error during release sequence\n"); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 718 | goto out; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 719 | } |
| 720 | } |
| 721 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 722 | /* Added some delay here, since opening/closing the camera quickly, |
| 723 | * like Ekiga does during its startup, can crash the webcam |
| 724 | */ |
| 725 | mdelay(100); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 726 | err = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 727 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 728 | out: |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 729 | mutex_unlock(&cam->lock); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 730 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 731 | } |
| 732 | |
| 733 | |
| 734 | static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma) |
| 735 | { |
| 736 | void *pos; |
| 737 | unsigned long start = vma->vm_start; |
| 738 | unsigned long size = vma->vm_end - vma->vm_start; |
| 739 | struct video_device *vdev = video_devdata(file); |
| 740 | struct zr364xx_camera *cam; |
| 741 | |
| 742 | DBG("zr364xx_mmap: %ld\n", size); |
| 743 | |
| 744 | if (vdev == NULL) |
| 745 | return -ENODEV; |
| 746 | cam = video_get_drvdata(vdev); |
| 747 | |
| 748 | pos = cam->framebuf; |
| 749 | while (size > 0) { |
| 750 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) |
| 751 | return -EAGAIN; |
| 752 | start += PAGE_SIZE; |
| 753 | pos += PAGE_SIZE; |
| 754 | if (size > PAGE_SIZE) |
| 755 | size -= PAGE_SIZE; |
| 756 | else |
| 757 | size = 0; |
| 758 | } |
| 759 | |
| 760 | return 0; |
| 761 | } |
| 762 | |
| 763 | |
Douglas Schilling Landgraf | bdd3665 | 2007-10-29 00:37:07 -0300 | [diff] [blame] | 764 | static const struct file_operations zr364xx_fops = { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 765 | .owner = THIS_MODULE, |
| 766 | .open = zr364xx_open, |
| 767 | .release = zr364xx_release, |
| 768 | .read = zr364xx_read, |
| 769 | .mmap = zr364xx_mmap, |
| 770 | .ioctl = video_ioctl2, |
| 771 | .llseek = no_llseek, |
| 772 | }; |
| 773 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 774 | static const struct v4l2_ioctl_ops zr364xx_ioctl_ops = { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 775 | .vidioc_querycap = zr364xx_vidioc_querycap, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 776 | .vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap, |
| 777 | .vidioc_try_fmt_vid_cap = zr364xx_vidioc_try_fmt_vid_cap, |
| 778 | .vidioc_s_fmt_vid_cap = zr364xx_vidioc_s_fmt_vid_cap, |
| 779 | .vidioc_g_fmt_vid_cap = zr364xx_vidioc_g_fmt_vid_cap, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 780 | .vidioc_enum_input = zr364xx_vidioc_enum_input, |
| 781 | .vidioc_g_input = zr364xx_vidioc_g_input, |
| 782 | .vidioc_s_input = zr364xx_vidioc_s_input, |
| 783 | .vidioc_streamon = zr364xx_vidioc_streamon, |
| 784 | .vidioc_streamoff = zr364xx_vidioc_streamoff, |
| 785 | .vidioc_queryctrl = zr364xx_vidioc_queryctrl, |
| 786 | .vidioc_g_ctrl = zr364xx_vidioc_g_ctrl, |
| 787 | .vidioc_s_ctrl = zr364xx_vidioc_s_ctrl, |
| 788 | }; |
| 789 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 790 | static struct video_device zr364xx_template = { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 791 | .name = DRIVER_DESC, |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 792 | .fops = &zr364xx_fops, |
| 793 | .ioctl_ops = &zr364xx_ioctl_ops, |
| 794 | .release = video_device_release, |
| 795 | .minor = -1, |
| 796 | }; |
| 797 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 798 | |
| 799 | |
| 800 | /*******************/ |
| 801 | /* USB integration */ |
| 802 | /*******************/ |
| 803 | |
| 804 | static int zr364xx_probe(struct usb_interface *intf, |
| 805 | const struct usb_device_id *id) |
| 806 | { |
| 807 | struct usb_device *udev = interface_to_usbdev(intf); |
| 808 | struct zr364xx_camera *cam = NULL; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 809 | int err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 810 | |
| 811 | DBG("probing..."); |
| 812 | |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 813 | dev_info(&intf->dev, DRIVER_DESC " compatible webcam plugged\n"); |
| 814 | dev_info(&intf->dev, "model %04x:%04x detected\n", |
| 815 | le16_to_cpu(udev->descriptor.idVendor), |
| 816 | le16_to_cpu(udev->descriptor.idProduct)); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 817 | |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 818 | cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL); |
| 819 | if (cam == NULL) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 820 | dev_err(&udev->dev, "cam: out of memory !\n"); |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 821 | return -ENOMEM; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 822 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 823 | /* save the init method used by this camera */ |
| 824 | cam->method = id->driver_info; |
| 825 | |
| 826 | cam->vdev = video_device_alloc(); |
| 827 | if (cam->vdev == NULL) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 828 | dev_err(&udev->dev, "cam->vdev: out of memory !\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 829 | kfree(cam); |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 830 | return -ENOMEM; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 831 | } |
| 832 | memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template)); |
| 833 | video_set_drvdata(cam->vdev, cam); |
| 834 | if (debug) |
| 835 | cam->vdev->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; |
| 836 | |
| 837 | cam->udev = udev; |
| 838 | |
| 839 | if ((cam->buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL)) == NULL) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 840 | dev_info(&udev->dev, "cam->buffer: out of memory !\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 841 | video_device_release(cam->vdev); |
| 842 | kfree(cam); |
| 843 | return -ENODEV; |
| 844 | } |
| 845 | |
| 846 | switch (mode) { |
| 847 | case 1: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 848 | dev_info(&udev->dev, "160x120 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 849 | cam->width = 160; |
| 850 | cam->height = 120; |
| 851 | break; |
| 852 | case 2: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 853 | dev_info(&udev->dev, "640x480 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 854 | cam->width = 640; |
| 855 | cam->height = 480; |
| 856 | break; |
| 857 | default: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 858 | dev_info(&udev->dev, "320x240 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 859 | cam->width = 320; |
| 860 | cam->height = 240; |
| 861 | break; |
| 862 | } |
| 863 | |
| 864 | m0d1[0] = mode; |
| 865 | m1[2].value = 0xf000 + mode; |
| 866 | m2[1].value = 0xf000 + mode; |
| 867 | header2[437] = cam->height / 256; |
| 868 | header2[438] = cam->height % 256; |
| 869 | header2[439] = cam->width / 256; |
| 870 | header2[440] = cam->width % 256; |
| 871 | |
| 872 | cam->nb = 0; |
| 873 | cam->brightness = 64; |
| 874 | mutex_init(&cam->lock); |
| 875 | |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 876 | err = video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1); |
| 877 | if (err) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 878 | dev_err(&udev->dev, "video_register_device failed\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 879 | video_device_release(cam->vdev); |
| 880 | kfree(cam->buffer); |
| 881 | kfree(cam); |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 882 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 883 | } |
| 884 | |
| 885 | usb_set_intfdata(intf, cam); |
| 886 | |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 887 | dev_info(&udev->dev, DRIVER_DESC " controlling video device %d\n", |
| 888 | cam->vdev->minor); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 889 | return 0; |
| 890 | } |
| 891 | |
| 892 | |
| 893 | static void zr364xx_disconnect(struct usb_interface *intf) |
| 894 | { |
| 895 | struct zr364xx_camera *cam = usb_get_intfdata(intf); |
| 896 | usb_set_intfdata(intf, NULL); |
| 897 | dev_set_drvdata(&intf->dev, NULL); |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 898 | dev_info(&intf->dev, DRIVER_DESC " webcam unplugged\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 899 | if (cam->vdev) |
| 900 | video_unregister_device(cam->vdev); |
| 901 | cam->vdev = NULL; |
| 902 | kfree(cam->buffer); |
| 903 | if (cam->framebuf) |
| 904 | vfree(cam->framebuf); |
| 905 | kfree(cam); |
| 906 | } |
| 907 | |
| 908 | |
| 909 | |
| 910 | /**********************/ |
| 911 | /* Module integration */ |
| 912 | /**********************/ |
| 913 | |
| 914 | static struct usb_driver zr364xx_driver = { |
| 915 | .name = "zr364xx", |
| 916 | .probe = zr364xx_probe, |
| 917 | .disconnect = zr364xx_disconnect, |
| 918 | .id_table = device_table |
| 919 | }; |
| 920 | |
| 921 | |
| 922 | static int __init zr364xx_init(void) |
| 923 | { |
| 924 | int retval; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 925 | retval = usb_register(&zr364xx_driver); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 926 | if (retval) |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 927 | printk(KERN_ERR KBUILD_MODNAME ": usb_register failed!\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 928 | else |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 929 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 930 | return retval; |
| 931 | } |
| 932 | |
| 933 | |
| 934 | static void __exit zr364xx_exit(void) |
| 935 | { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame^] | 936 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC " module unloaded\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 937 | usb_deregister(&zr364xx_driver); |
| 938 | } |
| 939 | |
| 940 | |
| 941 | module_init(zr364xx_init); |
| 942 | module_exit(zr364xx_exit); |
| 943 | |
| 944 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 945 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 946 | MODULE_LICENSE("GPL"); |