Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1 | /* |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 2 | * Zoran 364xx based USB webcam module version 0.73 |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 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 | * |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 13 | * Some video buffer code by Lamarque based on s2255drv.c and vivi.c drivers. |
| 14 | * |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | * GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
| 26 | * along with this program; if not, write to the Free Software |
| 27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 28 | */ |
| 29 | |
| 30 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 31 | #include <linux/module.h> |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 32 | #include <linux/version.h> |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 33 | #include <linux/init.h> |
| 34 | #include <linux/usb.h> |
| 35 | #include <linux/vmalloc.h> |
| 36 | #include <linux/slab.h> |
| 37 | #include <linux/proc_fs.h> |
Antoine Jacquet | 2575f84 | 2007-03-05 06:32:29 -0300 | [diff] [blame] | 38 | #include <linux/highmem.h> |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 39 | #include <media/v4l2-common.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 40 | #include <media/v4l2-ioctl.h> |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 41 | #include <media/videobuf-vmalloc.h> |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 42 | |
| 43 | |
| 44 | /* Version Information */ |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 45 | #define DRIVER_VERSION "v0.73" |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 46 | #define ZR364XX_VERSION_CODE KERNEL_VERSION(0, 7, 3) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 47 | #define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/" |
| 48 | #define DRIVER_DESC "Zoran 364xx" |
| 49 | |
| 50 | |
| 51 | /* Camera */ |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 52 | #define FRAMES 1 |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 53 | #define MAX_FRAME_SIZE 200000 |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 54 | #define BUFFER_SIZE 0x1000 |
| 55 | #define CTRL_TIMEOUT 500 |
| 56 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 57 | #define ZR364XX_DEF_BUFS 4 |
| 58 | #define ZR364XX_READ_IDLE 0 |
| 59 | #define ZR364XX_READ_FRAME 1 |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 60 | |
| 61 | /* Debug macro */ |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 62 | #define DBG(fmt, args...) \ |
| 63 | do { \ |
| 64 | if (debug) { \ |
| 65 | printk(KERN_INFO KBUILD_MODNAME " " fmt, ##args); \ |
| 66 | } \ |
| 67 | } while (0) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 68 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 69 | /*#define FULL_DEBUG 1*/ |
| 70 | #ifdef FULL_DEBUG |
| 71 | #define _DBG DBG |
| 72 | #else |
| 73 | #define _DBG(fmt, args...) |
| 74 | #endif |
| 75 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 76 | /* Init methods, need to find nicer names for these |
| 77 | * the exact names of the chipsets would be the best if someone finds it */ |
| 78 | #define METHOD0 0 |
| 79 | #define METHOD1 1 |
| 80 | #define METHOD2 2 |
Antoine Jacquet | 08135ba | 2009-12-27 18:22:05 -0300 | [diff] [blame] | 81 | #define METHOD3 3 |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 82 | |
| 83 | |
| 84 | /* Module parameters */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 85 | static int debug; |
| 86 | static int mode; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 87 | |
| 88 | |
| 89 | /* Module parameters interface */ |
| 90 | module_param(debug, int, 0644); |
| 91 | MODULE_PARM_DESC(debug, "Debug level"); |
| 92 | module_param(mode, int, 0644); |
| 93 | MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480"); |
| 94 | |
| 95 | |
| 96 | /* Devices supported by this driver |
| 97 | * .driver_info contains the init method used by the camera */ |
| 98 | static struct usb_device_id device_table[] = { |
| 99 | {USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 }, |
| 100 | {USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 }, |
| 101 | {USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 }, |
| 102 | {USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 }, |
| 103 | {USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 }, |
| 104 | {USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 }, |
| 105 | {USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 }, |
| 106 | {USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 }, |
| 107 | {USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 }, |
| 108 | {USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 }, |
| 109 | {USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 }, |
| 110 | {USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 }, |
| 111 | {USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 }, |
| 112 | {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, |
| 113 | {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, |
| 114 | {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, |
Antoine Jacquet | bebeaea | 2007-06-25 16:00:34 -0300 | [diff] [blame] | 115 | {USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 }, |
Antoine Jacquet | 71c0447 | 2008-01-25 22:01:53 -0300 | [diff] [blame] | 116 | {USB_DEVICE(0x0a17, 0x004e), .driver_info = METHOD2 }, |
Antoine Jacquet | c0e0aff | 2008-01-25 22:03:10 -0300 | [diff] [blame] | 117 | {USB_DEVICE(0x041e, 0x405d), .driver_info = METHOD2 }, |
Antoine Jacquet | 08135ba | 2009-12-27 18:22:05 -0300 | [diff] [blame] | 118 | {USB_DEVICE(0x08ca, 0x2102), .driver_info = METHOD3 }, |
Antoine Jacquet | 9018f6c | 2009-11-19 22:35:38 -0300 | [diff] [blame] | 119 | {USB_DEVICE(0x06d6, 0x003d), .driver_info = METHOD0 }, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 120 | {} /* Terminating entry */ |
| 121 | }; |
| 122 | |
| 123 | MODULE_DEVICE_TABLE(usb, device_table); |
| 124 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 125 | struct zr364xx_mode { |
| 126 | u32 color; /* output video color format */ |
| 127 | u32 brightness; /* brightness */ |
| 128 | }; |
| 129 | |
| 130 | /* frame structure */ |
| 131 | struct zr364xx_framei { |
| 132 | unsigned long ulState; /* ulState:ZR364XX_READ_IDLE, |
| 133 | ZR364XX_READ_FRAME */ |
| 134 | void *lpvbits; /* image data */ |
| 135 | unsigned long cur_size; /* current data copied to it */ |
| 136 | }; |
| 137 | |
| 138 | /* image buffer structure */ |
| 139 | struct zr364xx_bufferi { |
| 140 | unsigned long dwFrames; /* number of frames in buffer */ |
| 141 | struct zr364xx_framei frame[FRAMES]; /* array of FRAME structures */ |
| 142 | }; |
| 143 | |
| 144 | struct zr364xx_dmaqueue { |
| 145 | struct list_head active; |
| 146 | struct zr364xx_camera *cam; |
| 147 | }; |
| 148 | |
| 149 | struct zr364xx_pipeinfo { |
| 150 | u32 transfer_size; |
| 151 | u8 *transfer_buffer; |
| 152 | u32 state; |
| 153 | void *stream_urb; |
| 154 | void *cam; /* back pointer to zr364xx_camera struct */ |
| 155 | u32 err_count; |
| 156 | u32 idx; |
| 157 | }; |
| 158 | |
| 159 | struct zr364xx_fmt { |
| 160 | char *name; |
| 161 | u32 fourcc; |
| 162 | int depth; |
| 163 | }; |
| 164 | |
| 165 | /* image formats. */ |
| 166 | static const struct zr364xx_fmt formats[] = { |
| 167 | { |
| 168 | .name = "JPG", |
| 169 | .fourcc = V4L2_PIX_FMT_JPEG, |
| 170 | .depth = 24 |
| 171 | } |
| 172 | }; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 173 | |
| 174 | /* Camera stuff */ |
| 175 | struct zr364xx_camera { |
| 176 | struct usb_device *udev; /* save off the usb device pointer */ |
| 177 | struct usb_interface *interface;/* the interface for this device */ |
| 178 | struct video_device *vdev; /* v4l video device */ |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 179 | int nb; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 180 | struct zr364xx_bufferi buffer; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 181 | int skip; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 182 | int width; |
| 183 | int height; |
| 184 | int method; |
| 185 | struct mutex lock; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 186 | struct mutex open_lock; |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 187 | int users; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 188 | |
| 189 | spinlock_t slock; |
| 190 | struct zr364xx_dmaqueue vidq; |
| 191 | int resources; |
| 192 | int last_frame; |
| 193 | int cur_frame; |
| 194 | unsigned long frame_count; |
| 195 | int b_acquire; |
| 196 | struct zr364xx_pipeinfo pipe[1]; |
| 197 | |
| 198 | u8 read_endpoint; |
| 199 | |
| 200 | const struct zr364xx_fmt *fmt; |
| 201 | struct videobuf_queue vb_vidq; |
| 202 | enum v4l2_buf_type type; |
| 203 | struct zr364xx_mode mode; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 204 | }; |
| 205 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 206 | /* buffer for one video frame */ |
| 207 | struct zr364xx_buffer { |
| 208 | /* common v4l buffer stuff -- must be first */ |
| 209 | struct videobuf_buffer vb; |
| 210 | const struct zr364xx_fmt *fmt; |
| 211 | }; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 212 | |
| 213 | /* function used to send initialisation commands to the camera */ |
| 214 | static int send_control_msg(struct usb_device *udev, u8 request, u16 value, |
| 215 | u16 index, unsigned char *cp, u16 size) |
| 216 | { |
| 217 | int status; |
| 218 | |
| 219 | unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL); |
| 220 | if (!transfer_buffer) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 221 | dev_err(&udev->dev, "kmalloc(%d) failed\n", size); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 222 | return -ENOMEM; |
| 223 | } |
| 224 | |
| 225 | memcpy(transfer_buffer, cp, size); |
| 226 | |
| 227 | status = usb_control_msg(udev, |
| 228 | usb_sndctrlpipe(udev, 0), |
| 229 | request, |
| 230 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 231 | USB_RECIP_DEVICE, value, index, |
| 232 | transfer_buffer, size, CTRL_TIMEOUT); |
| 233 | |
| 234 | kfree(transfer_buffer); |
| 235 | |
| 236 | if (status < 0) |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 237 | dev_err(&udev->dev, |
| 238 | "Failed sending control message, error %d.\n", status); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 239 | |
| 240 | return status; |
| 241 | } |
| 242 | |
| 243 | |
| 244 | /* Control messages sent to the camera to initialize it |
| 245 | * and launch the capture */ |
| 246 | typedef struct { |
| 247 | unsigned int value; |
| 248 | unsigned int size; |
| 249 | unsigned char *bytes; |
| 250 | } message; |
| 251 | |
| 252 | /* method 0 */ |
| 253 | static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; |
| 254 | static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 }; |
| 255 | static unsigned char m0d3[] = { 0, 0 }; |
| 256 | static message m0[] = { |
| 257 | {0x1f30, 0, NULL}, |
| 258 | {0xd000, 0, NULL}, |
| 259 | {0x3370, sizeof(m0d1), m0d1}, |
| 260 | {0x2000, 0, NULL}, |
| 261 | {0x2f0f, 0, NULL}, |
| 262 | {0x2610, sizeof(m0d2), m0d2}, |
| 263 | {0xe107, 0, NULL}, |
| 264 | {0x2502, 0, NULL}, |
| 265 | {0x1f70, 0, NULL}, |
| 266 | {0xd000, 0, NULL}, |
| 267 | {0x9a01, sizeof(m0d3), m0d3}, |
| 268 | {-1, -1, NULL} |
| 269 | }; |
| 270 | |
| 271 | /* method 1 */ |
| 272 | static unsigned char m1d1[] = { 0xff, 0xff }; |
| 273 | static unsigned char m1d2[] = { 0x00, 0x00 }; |
| 274 | static message m1[] = { |
| 275 | {0x1f30, 0, NULL}, |
| 276 | {0xd000, 0, NULL}, |
| 277 | {0xf000, 0, NULL}, |
| 278 | {0x2000, 0, NULL}, |
| 279 | {0x2f0f, 0, NULL}, |
| 280 | {0x2650, 0, NULL}, |
| 281 | {0xe107, 0, NULL}, |
| 282 | {0x2502, sizeof(m1d1), m1d1}, |
| 283 | {0x1f70, 0, NULL}, |
| 284 | {0xd000, 0, NULL}, |
| 285 | {0xd000, 0, NULL}, |
| 286 | {0xd000, 0, NULL}, |
| 287 | {0x9a01, sizeof(m1d2), m1d2}, |
| 288 | {-1, -1, NULL} |
| 289 | }; |
| 290 | |
| 291 | /* method 2 */ |
| 292 | static unsigned char m2d1[] = { 0xff, 0xff }; |
| 293 | static message m2[] = { |
| 294 | {0x1f30, 0, NULL}, |
| 295 | {0xf000, 0, NULL}, |
| 296 | {0x2000, 0, NULL}, |
| 297 | {0x2f0f, 0, NULL}, |
| 298 | {0x2650, 0, NULL}, |
| 299 | {0xe107, 0, NULL}, |
| 300 | {0x2502, sizeof(m2d1), m2d1}, |
| 301 | {0x1f70, 0, NULL}, |
| 302 | {-1, -1, NULL} |
| 303 | }; |
| 304 | |
| 305 | /* init table */ |
Antoine Jacquet | 08135ba | 2009-12-27 18:22:05 -0300 | [diff] [blame] | 306 | static message *init[4] = { m0, m1, m2, m2 }; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 307 | |
| 308 | |
| 309 | /* JPEG static data in header (Huffman table, etc) */ |
| 310 | static unsigned char header1[] = { |
| 311 | 0xFF, 0xD8, |
| 312 | /* |
| 313 | 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', |
| 314 | 0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88, |
| 315 | */ |
| 316 | 0xFF, 0xDB, 0x00, 0x84 |
| 317 | }; |
| 318 | static unsigned char header2[] = { |
| 319 | 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, |
| 320 | 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 321 | 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 322 | 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, |
| 323 | 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, |
| 324 | 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, |
| 325 | 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, |
| 326 | 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, |
| 327 | 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, |
| 328 | 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
| 329 | 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, |
| 330 | 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 331 | 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, |
| 332 | 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, |
| 333 | 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, |
| 334 | 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, |
| 335 | 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, |
| 336 | 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, |
| 337 | 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, |
| 338 | 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, |
| 339 | 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
| 340 | 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, |
| 341 | 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, |
| 342 | 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, |
| 343 | 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, |
| 344 | 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, |
| 345 | 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, |
| 346 | 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, |
| 347 | 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, |
| 348 | 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, |
| 349 | 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, |
| 350 | 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, |
| 351 | 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, |
| 352 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, |
| 353 | 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, |
| 354 | 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, |
| 355 | 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, |
| 356 | 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, |
| 357 | 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, |
| 358 | 0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, |
| 359 | 0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, |
| 360 | 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, |
| 361 | 0x00, 0x3F, 0x00 |
| 362 | }; |
| 363 | static unsigned char header3; |
| 364 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 365 | /* ------------------------------------------------------------------ |
| 366 | Videobuf operations |
| 367 | ------------------------------------------------------------------*/ |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 368 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 369 | static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, |
| 370 | unsigned int *size) |
| 371 | { |
| 372 | struct zr364xx_camera *cam = vq->priv_data; |
| 373 | |
| 374 | *size = cam->width * cam->height * (cam->fmt->depth >> 3); |
| 375 | |
| 376 | if (*count == 0) |
| 377 | *count = ZR364XX_DEF_BUFS; |
| 378 | |
Andreas Bombe | dab7e31 | 2010-03-21 16:02:45 -0300 | [diff] [blame^] | 379 | if (*size * *count > ZR364XX_DEF_BUFS * 1024 * 1024) |
| 380 | *count = (ZR364XX_DEF_BUFS * 1024 * 1024) / *size; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | static void free_buffer(struct videobuf_queue *vq, struct zr364xx_buffer *buf) |
| 386 | { |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 387 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 388 | |
| 389 | if (in_interrupt()) |
| 390 | BUG(); |
| 391 | |
| 392 | videobuf_vmalloc_free(&buf->vb); |
| 393 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
| 394 | } |
| 395 | |
| 396 | static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 397 | enum v4l2_field field) |
| 398 | { |
| 399 | struct zr364xx_camera *cam = vq->priv_data; |
| 400 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, |
| 401 | vb); |
| 402 | int rc; |
| 403 | |
| 404 | DBG("%s, field=%d, fmt name = %s\n", __func__, field, cam->fmt != NULL ? |
| 405 | cam->fmt->name : ""); |
| 406 | if (cam->fmt == NULL) |
| 407 | return -EINVAL; |
| 408 | |
| 409 | buf->vb.size = cam->width * cam->height * (cam->fmt->depth >> 3); |
| 410 | |
| 411 | if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size) { |
| 412 | DBG("invalid buffer prepare\n"); |
| 413 | return -EINVAL; |
| 414 | } |
| 415 | |
| 416 | buf->fmt = cam->fmt; |
| 417 | buf->vb.width = cam->width; |
| 418 | buf->vb.height = cam->height; |
| 419 | buf->vb.field = field; |
| 420 | |
| 421 | if (buf->vb.state == VIDEOBUF_NEEDS_INIT) { |
| 422 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
| 423 | if (rc < 0) |
| 424 | goto fail; |
| 425 | } |
| 426 | |
| 427 | buf->vb.state = VIDEOBUF_PREPARED; |
| 428 | return 0; |
| 429 | fail: |
| 430 | free_buffer(vq, buf); |
| 431 | return rc; |
| 432 | } |
| 433 | |
| 434 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 435 | { |
| 436 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, |
| 437 | vb); |
| 438 | struct zr364xx_camera *cam = vq->priv_data; |
| 439 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 440 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 441 | |
| 442 | buf->vb.state = VIDEOBUF_QUEUED; |
| 443 | list_add_tail(&buf->vb.queue, &cam->vidq.active); |
| 444 | } |
| 445 | |
| 446 | static void buffer_release(struct videobuf_queue *vq, |
| 447 | struct videobuf_buffer *vb) |
| 448 | { |
| 449 | struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer, |
| 450 | vb); |
| 451 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 452 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 453 | free_buffer(vq, buf); |
| 454 | } |
| 455 | |
| 456 | static struct videobuf_queue_ops zr364xx_video_qops = { |
| 457 | .buf_setup = buffer_setup, |
| 458 | .buf_prepare = buffer_prepare, |
| 459 | .buf_queue = buffer_queue, |
| 460 | .buf_release = buffer_release, |
| 461 | }; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 462 | |
| 463 | /********************/ |
| 464 | /* V4L2 integration */ |
| 465 | /********************/ |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 466 | static int zr364xx_vidioc_streamon(struct file *file, void *priv, |
| 467 | enum v4l2_buf_type type); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 468 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 469 | static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t count, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 470 | loff_t * ppos) |
| 471 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 472 | struct zr364xx_camera *cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 473 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 474 | _DBG("%s\n", __func__); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 475 | |
| 476 | if (!buf) |
| 477 | return -EINVAL; |
| 478 | |
| 479 | if (!count) |
| 480 | return -EINVAL; |
| 481 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 482 | if (cam->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| 483 | zr364xx_vidioc_streamon(file, cam, cam->type) == 0) { |
| 484 | DBG("%s: reading %d bytes at pos %d.\n", __func__, (int) count, |
| 485 | (int) *ppos); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 486 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 487 | /* NoMan Sux ! */ |
| 488 | return videobuf_read_one(&cam->vb_vidq, buf, count, ppos, |
| 489 | file->f_flags & O_NONBLOCK); |
| 490 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 491 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 492 | return 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 493 | } |
| 494 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 495 | /* video buffer vmalloc implementation based partly on VIVI driver which is |
| 496 | * Copyright (c) 2006 by |
| 497 | * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> |
| 498 | * Ted Walther <ted--a.t--enumera.com> |
| 499 | * John Sokol <sokol--a.t--videotechnology.com> |
| 500 | * http://v4l.videotechnology.com/ |
| 501 | * |
| 502 | */ |
| 503 | static void zr364xx_fillbuff(struct zr364xx_camera *cam, |
| 504 | struct zr364xx_buffer *buf, |
| 505 | int jpgsize) |
| 506 | { |
| 507 | int pos = 0; |
| 508 | struct timeval ts; |
| 509 | const char *tmpbuf; |
| 510 | char *vbuf = videobuf_to_vmalloc(&buf->vb); |
| 511 | unsigned long last_frame; |
| 512 | struct zr364xx_framei *frm; |
| 513 | |
| 514 | if (!vbuf) |
| 515 | return; |
| 516 | |
| 517 | last_frame = cam->last_frame; |
| 518 | if (last_frame != -1) { |
| 519 | frm = &cam->buffer.frame[last_frame]; |
| 520 | tmpbuf = (const char *)cam->buffer.frame[last_frame].lpvbits; |
| 521 | switch (buf->fmt->fourcc) { |
| 522 | case V4L2_PIX_FMT_JPEG: |
| 523 | buf->vb.size = jpgsize; |
| 524 | memcpy(vbuf, tmpbuf, buf->vb.size); |
| 525 | break; |
| 526 | default: |
| 527 | printk(KERN_DEBUG KBUILD_MODNAME ": unknown format?\n"); |
| 528 | } |
| 529 | cam->last_frame = -1; |
| 530 | } else { |
| 531 | printk(KERN_ERR KBUILD_MODNAME ": =======no frame\n"); |
| 532 | return; |
| 533 | } |
| 534 | DBG("%s: Buffer 0x%08lx size= %d\n", __func__, |
| 535 | (unsigned long)vbuf, pos); |
| 536 | /* tell v4l buffer was filled */ |
| 537 | |
| 538 | buf->vb.field_count = cam->frame_count * 2; |
| 539 | do_gettimeofday(&ts); |
| 540 | buf->vb.ts = ts; |
| 541 | buf->vb.state = VIDEOBUF_DONE; |
| 542 | } |
| 543 | |
| 544 | static int zr364xx_got_frame(struct zr364xx_camera *cam, int jpgsize) |
| 545 | { |
| 546 | struct zr364xx_dmaqueue *dma_q = &cam->vidq; |
| 547 | struct zr364xx_buffer *buf; |
| 548 | unsigned long flags = 0; |
| 549 | int rc = 0; |
| 550 | |
| 551 | DBG("wakeup: %p\n", &dma_q); |
| 552 | spin_lock_irqsave(&cam->slock, flags); |
| 553 | |
| 554 | if (list_empty(&dma_q->active)) { |
| 555 | DBG("No active queue to serve\n"); |
| 556 | rc = -1; |
| 557 | goto unlock; |
| 558 | } |
| 559 | buf = list_entry(dma_q->active.next, |
| 560 | struct zr364xx_buffer, vb.queue); |
| 561 | |
| 562 | if (!waitqueue_active(&buf->vb.done)) { |
| 563 | /* no one active */ |
| 564 | rc = -1; |
| 565 | goto unlock; |
| 566 | } |
| 567 | list_del(&buf->vb.queue); |
| 568 | do_gettimeofday(&buf->vb.ts); |
| 569 | DBG("[%p/%d] wakeup\n", buf, buf->vb.i); |
| 570 | zr364xx_fillbuff(cam, buf, jpgsize); |
| 571 | wake_up(&buf->vb.done); |
| 572 | DBG("wakeup [buf/i] [%p/%d]\n", buf, buf->vb.i); |
| 573 | unlock: |
| 574 | spin_unlock_irqrestore(&cam->slock, flags); |
| 575 | return 0; |
| 576 | } |
| 577 | |
| 578 | /* this function moves the usb stream read pipe data |
| 579 | * into the system buffers. |
| 580 | * returns 0 on success, EAGAIN if more data to process (call this |
| 581 | * function again). |
| 582 | */ |
| 583 | static int zr364xx_read_video_callback(struct zr364xx_camera *cam, |
| 584 | struct zr364xx_pipeinfo *pipe_info, |
| 585 | struct urb *purb) |
| 586 | { |
| 587 | unsigned char *pdest; |
| 588 | unsigned char *psrc; |
| 589 | s32 idx = -1; |
| 590 | struct zr364xx_framei *frm; |
| 591 | int i = 0; |
| 592 | unsigned char *ptr = NULL; |
| 593 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 594 | _DBG("buffer to user\n"); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 595 | idx = cam->cur_frame; |
| 596 | frm = &cam->buffer.frame[idx]; |
| 597 | |
| 598 | /* swap bytes if camera needs it */ |
| 599 | if (cam->method == METHOD0) { |
| 600 | u16 *buf = (u16 *)pipe_info->transfer_buffer; |
| 601 | for (i = 0; i < purb->actual_length/2; i++) |
| 602 | swab16s(buf + i); |
| 603 | } |
| 604 | |
| 605 | /* search done. now find out if should be acquiring */ |
| 606 | if (!cam->b_acquire) { |
| 607 | /* we found a frame, but this channel is turned off */ |
| 608 | frm->ulState = ZR364XX_READ_IDLE; |
| 609 | return -EINVAL; |
| 610 | } |
| 611 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 612 | psrc = (u8 *)pipe_info->transfer_buffer; |
| 613 | ptr = pdest = frm->lpvbits; |
| 614 | |
| 615 | if (frm->ulState == ZR364XX_READ_IDLE) { |
| 616 | frm->ulState = ZR364XX_READ_FRAME; |
| 617 | frm->cur_size = 0; |
| 618 | |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 619 | _DBG("jpeg header, "); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 620 | memcpy(ptr, header1, sizeof(header1)); |
| 621 | ptr += sizeof(header1); |
| 622 | header3 = 0; |
| 623 | memcpy(ptr, &header3, 1); |
| 624 | ptr++; |
| 625 | memcpy(ptr, psrc, 64); |
| 626 | ptr += 64; |
| 627 | header3 = 1; |
| 628 | memcpy(ptr, &header3, 1); |
| 629 | ptr++; |
| 630 | memcpy(ptr, psrc + 64, 64); |
| 631 | ptr += 64; |
| 632 | memcpy(ptr, header2, sizeof(header2)); |
| 633 | ptr += sizeof(header2); |
| 634 | memcpy(ptr, psrc + 128, |
| 635 | purb->actual_length - 128); |
| 636 | ptr += purb->actual_length - 128; |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 637 | _DBG("header : %d %d %d %d %d %d %d %d %d\n", |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 638 | psrc[0], psrc[1], psrc[2], |
| 639 | psrc[3], psrc[4], psrc[5], |
| 640 | psrc[6], psrc[7], psrc[8]); |
| 641 | frm->cur_size = ptr - pdest; |
| 642 | } else { |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 643 | if (frm->cur_size + purb->actual_length > MAX_FRAME_SIZE) { |
| 644 | dev_info(&cam->udev->dev, |
| 645 | "%s: buffer (%d bytes) too small to hold " |
| 646 | "frame data. Discarding frame data.\n", |
| 647 | __func__, MAX_FRAME_SIZE); |
| 648 | } else { |
| 649 | pdest += frm->cur_size; |
| 650 | memcpy(pdest, psrc, purb->actual_length); |
| 651 | frm->cur_size += purb->actual_length; |
| 652 | } |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 653 | } |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 654 | /*_DBG("cur_size %lu urb size %d\n", frm->cur_size, |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 655 | purb->actual_length);*/ |
| 656 | |
| 657 | if (purb->actual_length < pipe_info->transfer_size) { |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 658 | _DBG("****************Buffer[%d]full*************\n", idx); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 659 | cam->last_frame = cam->cur_frame; |
| 660 | cam->cur_frame++; |
| 661 | /* end of system frame ring buffer, start at zero */ |
| 662 | if (cam->cur_frame == cam->buffer.dwFrames) |
| 663 | cam->cur_frame = 0; |
| 664 | |
| 665 | /* frame ready */ |
| 666 | /* go back to find the JPEG EOI marker */ |
| 667 | ptr = pdest = frm->lpvbits; |
| 668 | ptr += frm->cur_size - 2; |
| 669 | while (ptr > pdest) { |
| 670 | if (*ptr == 0xFF && *(ptr + 1) == 0xD9 |
| 671 | && *(ptr + 2) == 0xFF) |
| 672 | break; |
| 673 | ptr--; |
| 674 | } |
| 675 | if (ptr == pdest) |
| 676 | DBG("No EOI marker\n"); |
| 677 | |
| 678 | /* Sometimes there is junk data in the middle of the picture, |
| 679 | * we want to skip this bogus frames */ |
| 680 | while (ptr > pdest) { |
| 681 | if (*ptr == 0xFF && *(ptr + 1) == 0xFF |
| 682 | && *(ptr + 2) == 0xFF) |
| 683 | break; |
| 684 | ptr--; |
| 685 | } |
| 686 | if (ptr != pdest) { |
| 687 | DBG("Bogus frame ? %d\n", ++(cam->nb)); |
| 688 | } else if (cam->b_acquire) { |
| 689 | /* we skip the 2 first frames which are usually buggy */ |
| 690 | if (cam->skip) |
| 691 | cam->skip--; |
| 692 | else { |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 693 | _DBG("jpeg(%lu): %d %d %d %d %d %d %d %d\n", |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 694 | frm->cur_size, |
| 695 | pdest[0], pdest[1], pdest[2], pdest[3], |
| 696 | pdest[4], pdest[5], pdest[6], pdest[7]); |
| 697 | |
| 698 | zr364xx_got_frame(cam, frm->cur_size); |
| 699 | } |
| 700 | } |
| 701 | cam->frame_count++; |
| 702 | frm->ulState = ZR364XX_READ_IDLE; |
| 703 | frm->cur_size = 0; |
| 704 | } |
| 705 | /* done successfully */ |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | static int res_get(struct zr364xx_camera *cam) |
| 710 | { |
| 711 | /* is it free? */ |
| 712 | mutex_lock(&cam->lock); |
| 713 | if (cam->resources) { |
| 714 | /* no, someone else uses it */ |
| 715 | mutex_unlock(&cam->lock); |
| 716 | return 0; |
| 717 | } |
| 718 | /* it's free, grab it */ |
| 719 | cam->resources = 1; |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 720 | _DBG("res: get\n"); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 721 | mutex_unlock(&cam->lock); |
| 722 | return 1; |
| 723 | } |
| 724 | |
| 725 | static inline int res_check(struct zr364xx_camera *cam) |
| 726 | { |
| 727 | return cam->resources; |
| 728 | } |
| 729 | |
| 730 | static void res_free(struct zr364xx_camera *cam) |
| 731 | { |
| 732 | mutex_lock(&cam->lock); |
| 733 | cam->resources = 0; |
| 734 | mutex_unlock(&cam->lock); |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 735 | _DBG("res: put\n"); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 736 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 737 | |
| 738 | static int zr364xx_vidioc_querycap(struct file *file, void *priv, |
| 739 | struct v4l2_capability *cap) |
| 740 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 741 | struct zr364xx_camera *cam = video_drvdata(file); |
| 742 | |
| 743 | strlcpy(cap->driver, DRIVER_DESC, sizeof(cap->driver)); |
| 744 | strlcpy(cap->card, cam->udev->product, sizeof(cap->card)); |
| 745 | strlcpy(cap->bus_info, dev_name(&cam->udev->dev), |
| 746 | sizeof(cap->bus_info)); |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 747 | cap->version = ZR364XX_VERSION_CODE; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 748 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 749 | V4L2_CAP_READWRITE | |
| 750 | V4L2_CAP_STREAMING; |
| 751 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 752 | return 0; |
| 753 | } |
| 754 | |
| 755 | static int zr364xx_vidioc_enum_input(struct file *file, void *priv, |
| 756 | struct v4l2_input *i) |
| 757 | { |
| 758 | if (i->index != 0) |
| 759 | return -EINVAL; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 760 | strcpy(i->name, DRIVER_DESC " Camera"); |
| 761 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 762 | return 0; |
| 763 | } |
| 764 | |
| 765 | static int zr364xx_vidioc_g_input(struct file *file, void *priv, |
| 766 | unsigned int *i) |
| 767 | { |
| 768 | *i = 0; |
| 769 | return 0; |
| 770 | } |
| 771 | |
| 772 | static int zr364xx_vidioc_s_input(struct file *file, void *priv, |
| 773 | unsigned int i) |
| 774 | { |
| 775 | if (i != 0) |
| 776 | return -EINVAL; |
| 777 | return 0; |
| 778 | } |
| 779 | |
| 780 | static int zr364xx_vidioc_queryctrl(struct file *file, void *priv, |
| 781 | struct v4l2_queryctrl *c) |
| 782 | { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 783 | struct zr364xx_camera *cam; |
| 784 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 785 | if (file == NULL) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 786 | return -ENODEV; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 787 | cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 788 | |
| 789 | switch (c->id) { |
| 790 | case V4L2_CID_BRIGHTNESS: |
| 791 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 792 | strcpy(c->name, "Brightness"); |
| 793 | c->minimum = 0; |
| 794 | c->maximum = 127; |
| 795 | c->step = 1; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 796 | c->default_value = cam->mode.brightness; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 797 | c->flags = 0; |
| 798 | break; |
| 799 | default: |
| 800 | return -EINVAL; |
| 801 | } |
| 802 | return 0; |
| 803 | } |
| 804 | |
| 805 | static int zr364xx_vidioc_s_ctrl(struct file *file, void *priv, |
| 806 | struct v4l2_control *c) |
| 807 | { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 808 | struct zr364xx_camera *cam; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 809 | int temp; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 810 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 811 | if (file == NULL) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 812 | return -ENODEV; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 813 | cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 814 | |
| 815 | switch (c->id) { |
| 816 | case V4L2_CID_BRIGHTNESS: |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 817 | cam->mode.brightness = c->value; |
| 818 | /* hardware brightness */ |
| 819 | mutex_lock(&cam->lock); |
| 820 | send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0); |
| 821 | temp = (0x60 << 8) + 127 - cam->mode.brightness; |
| 822 | send_control_msg(cam->udev, 1, temp, 0, NULL, 0); |
| 823 | mutex_unlock(&cam->lock); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 824 | break; |
| 825 | default: |
| 826 | return -EINVAL; |
| 827 | } |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 828 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 829 | return 0; |
| 830 | } |
| 831 | |
| 832 | static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv, |
| 833 | struct v4l2_control *c) |
| 834 | { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 835 | struct zr364xx_camera *cam; |
| 836 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 837 | if (file == NULL) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 838 | return -ENODEV; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 839 | cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 840 | |
| 841 | switch (c->id) { |
| 842 | case V4L2_CID_BRIGHTNESS: |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 843 | c->value = cam->mode.brightness; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 844 | break; |
| 845 | default: |
| 846 | return -EINVAL; |
| 847 | } |
| 848 | return 0; |
| 849 | } |
| 850 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 851 | static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 852 | void *priv, struct v4l2_fmtdesc *f) |
| 853 | { |
| 854 | if (f->index > 0) |
| 855 | return -EINVAL; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 856 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 857 | strcpy(f->description, formats[0].name); |
| 858 | f->pixelformat = formats[0].fourcc; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 859 | return 0; |
| 860 | } |
| 861 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 862 | static char *decode_fourcc(__u32 pixelformat, char *buf) |
| 863 | { |
| 864 | buf[0] = pixelformat & 0xff; |
| 865 | buf[1] = (pixelformat >> 8) & 0xff; |
| 866 | buf[2] = (pixelformat >> 16) & 0xff; |
| 867 | buf[3] = (pixelformat >> 24) & 0xff; |
| 868 | buf[4] = '\0'; |
| 869 | return buf; |
| 870 | } |
| 871 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 872 | 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] | 873 | struct v4l2_format *f) |
| 874 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 875 | struct zr364xx_camera *cam = video_drvdata(file); |
| 876 | char pixelformat_name[5]; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 877 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 878 | if (cam == NULL) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 879 | return -ENODEV; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 880 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 881 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) { |
| 882 | DBG("%s: unsupported pixelformat V4L2_PIX_FMT_%s\n", __func__, |
| 883 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name)); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 884 | return -EINVAL; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 885 | } |
| 886 | |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 887 | if (!(f->fmt.pix.width == 160 && f->fmt.pix.height == 120) && |
| 888 | !(f->fmt.pix.width == 640 && f->fmt.pix.height == 480)) { |
| 889 | f->fmt.pix.width = 320; |
| 890 | f->fmt.pix.height = 240; |
| 891 | } |
| 892 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 893 | f->fmt.pix.field = V4L2_FIELD_NONE; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 894 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 895 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 896 | f->fmt.pix.colorspace = 0; |
| 897 | f->fmt.pix.priv = 0; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 898 | DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__, |
| 899 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name), |
| 900 | f->fmt.pix.field); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 901 | return 0; |
| 902 | } |
| 903 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 904 | 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] | 905 | struct v4l2_format *f) |
| 906 | { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 907 | struct zr364xx_camera *cam; |
| 908 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 909 | if (file == NULL) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 910 | return -ENODEV; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 911 | cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 912 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 913 | f->fmt.pix.pixelformat = formats[0].fourcc; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 914 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 915 | f->fmt.pix.width = cam->width; |
| 916 | f->fmt.pix.height = cam->height; |
| 917 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 918 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 919 | f->fmt.pix.colorspace = 0; |
| 920 | f->fmt.pix.priv = 0; |
| 921 | return 0; |
| 922 | } |
| 923 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 924 | 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] | 925 | struct v4l2_format *f) |
| 926 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 927 | struct zr364xx_camera *cam = video_drvdata(file); |
| 928 | struct videobuf_queue *q = &cam->vb_vidq; |
| 929 | char pixelformat_name[5]; |
| 930 | int ret = zr364xx_vidioc_try_fmt_vid_cap(file, cam, f); |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 931 | int i; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 932 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 933 | if (ret < 0) |
| 934 | return ret; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 935 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 936 | mutex_lock(&q->vb_lock); |
| 937 | |
| 938 | if (videobuf_queue_is_busy(&cam->vb_vidq)) { |
| 939 | DBG("%s queue busy\n", __func__); |
| 940 | ret = -EBUSY; |
| 941 | goto out; |
| 942 | } |
| 943 | |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 944 | if (res_check(cam)) { |
| 945 | DBG("%s can't change format after started\n", __func__); |
| 946 | ret = -EBUSY; |
| 947 | goto out; |
| 948 | } |
| 949 | |
| 950 | cam->width = f->fmt.pix.width; |
| 951 | cam->height = f->fmt.pix.height; |
| 952 | dev_info(&cam->udev->dev, "%s: %dx%d mode selected\n", __func__, |
| 953 | cam->width, cam->height); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 954 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 955 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 956 | f->fmt.pix.colorspace = 0; |
| 957 | f->fmt.pix.priv = 0; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 958 | cam->vb_vidq.field = f->fmt.pix.field; |
| 959 | cam->mode.color = V4L2_PIX_FMT_JPEG; |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 960 | |
| 961 | if (f->fmt.pix.width == 160 && f->fmt.pix.height == 120) |
| 962 | mode = 1; |
| 963 | else if (f->fmt.pix.width == 640 && f->fmt.pix.height == 480) |
| 964 | mode = 2; |
| 965 | else |
| 966 | mode = 0; |
| 967 | |
| 968 | m0d1[0] = mode; |
| 969 | m1[2].value = 0xf000 + mode; |
| 970 | m2[1].value = 0xf000 + mode; |
Antoine Jacquet | 08135ba | 2009-12-27 18:22:05 -0300 | [diff] [blame] | 971 | |
| 972 | /* special case for METHOD3, the modes are different */ |
| 973 | if (cam->method == METHOD3) { |
| 974 | switch (mode) { |
| 975 | case 1: |
| 976 | m2[1].value = 0xf000 + 4; |
| 977 | break; |
| 978 | case 2: |
| 979 | m2[1].value = 0xf000 + 0; |
| 980 | break; |
| 981 | default: |
| 982 | m2[1].value = 0xf000 + 1; |
| 983 | break; |
| 984 | } |
| 985 | } |
| 986 | |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 987 | header2[437] = cam->height / 256; |
| 988 | header2[438] = cam->height % 256; |
| 989 | header2[439] = cam->width / 256; |
| 990 | header2[440] = cam->width % 256; |
| 991 | |
| 992 | for (i = 0; init[cam->method][i].size != -1; i++) { |
| 993 | ret = |
| 994 | send_control_msg(cam->udev, 1, init[cam->method][i].value, |
| 995 | 0, init[cam->method][i].bytes, |
| 996 | init[cam->method][i].size); |
| 997 | if (ret < 0) { |
| 998 | dev_err(&cam->udev->dev, |
| 999 | "error during resolution change sequence: %d\n", i); |
| 1000 | goto out; |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | /* Added some delay here, since opening/closing the camera quickly, |
| 1005 | * like Ekiga does during its startup, can crash the webcam |
| 1006 | */ |
| 1007 | mdelay(100); |
| 1008 | cam->skip = 2; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1009 | ret = 0; |
| 1010 | |
| 1011 | out: |
| 1012 | mutex_unlock(&q->vb_lock); |
| 1013 | |
| 1014 | DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__, |
| 1015 | decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name), |
| 1016 | f->fmt.pix.field); |
| 1017 | return ret; |
| 1018 | } |
| 1019 | |
| 1020 | static int zr364xx_vidioc_reqbufs(struct file *file, void *priv, |
| 1021 | struct v4l2_requestbuffers *p) |
| 1022 | { |
| 1023 | int rc; |
| 1024 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1025 | rc = videobuf_reqbufs(&cam->vb_vidq, p); |
| 1026 | return rc; |
| 1027 | } |
| 1028 | |
| 1029 | static int zr364xx_vidioc_querybuf(struct file *file, |
| 1030 | void *priv, |
| 1031 | struct v4l2_buffer *p) |
| 1032 | { |
| 1033 | int rc; |
| 1034 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1035 | rc = videobuf_querybuf(&cam->vb_vidq, p); |
| 1036 | return rc; |
| 1037 | } |
| 1038 | |
| 1039 | static int zr364xx_vidioc_qbuf(struct file *file, |
| 1040 | void *priv, |
| 1041 | struct v4l2_buffer *p) |
| 1042 | { |
| 1043 | int rc; |
| 1044 | struct zr364xx_camera *cam = video_drvdata(file); |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 1045 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1046 | rc = videobuf_qbuf(&cam->vb_vidq, p); |
| 1047 | return rc; |
| 1048 | } |
| 1049 | |
| 1050 | static int zr364xx_vidioc_dqbuf(struct file *file, |
| 1051 | void *priv, |
| 1052 | struct v4l2_buffer *p) |
| 1053 | { |
| 1054 | int rc; |
| 1055 | struct zr364xx_camera *cam = video_drvdata(file); |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 1056 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1057 | rc = videobuf_dqbuf(&cam->vb_vidq, p, file->f_flags & O_NONBLOCK); |
| 1058 | return rc; |
| 1059 | } |
| 1060 | |
| 1061 | static void read_pipe_completion(struct urb *purb) |
| 1062 | { |
| 1063 | struct zr364xx_pipeinfo *pipe_info; |
| 1064 | struct zr364xx_camera *cam; |
| 1065 | int pipe; |
| 1066 | |
| 1067 | pipe_info = purb->context; |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 1068 | _DBG("%s %p, status %d\n", __func__, purb, purb->status); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1069 | if (pipe_info == NULL) { |
| 1070 | printk(KERN_ERR KBUILD_MODNAME ": no context!\n"); |
| 1071 | return; |
| 1072 | } |
| 1073 | |
| 1074 | cam = pipe_info->cam; |
| 1075 | if (cam == NULL) { |
| 1076 | printk(KERN_ERR KBUILD_MODNAME ": no context!\n"); |
| 1077 | return; |
| 1078 | } |
| 1079 | |
| 1080 | /* if shutting down, do not resubmit, exit immediately */ |
| 1081 | if (purb->status == -ESHUTDOWN) { |
| 1082 | DBG("%s, err shutdown\n", __func__); |
| 1083 | pipe_info->err_count++; |
| 1084 | return; |
| 1085 | } |
| 1086 | |
| 1087 | if (pipe_info->state == 0) { |
| 1088 | DBG("exiting USB pipe\n"); |
| 1089 | return; |
| 1090 | } |
| 1091 | |
| 1092 | if (purb->actual_length < 0 || |
| 1093 | purb->actual_length > pipe_info->transfer_size) { |
| 1094 | dev_err(&cam->udev->dev, "wrong number of bytes\n"); |
| 1095 | return; |
| 1096 | } |
| 1097 | |
| 1098 | if (purb->status == 0) |
| 1099 | zr364xx_read_video_callback(cam, pipe_info, purb); |
| 1100 | else { |
| 1101 | pipe_info->err_count++; |
| 1102 | DBG("%s: failed URB %d\n", __func__, purb->status); |
| 1103 | } |
| 1104 | |
| 1105 | pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint); |
| 1106 | |
| 1107 | /* reuse urb */ |
| 1108 | usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev, |
| 1109 | pipe, |
| 1110 | pipe_info->transfer_buffer, |
| 1111 | pipe_info->transfer_size, |
| 1112 | read_pipe_completion, pipe_info); |
| 1113 | |
| 1114 | if (pipe_info->state != 0) { |
| 1115 | purb->status = usb_submit_urb(pipe_info->stream_urb, |
| 1116 | GFP_ATOMIC); |
| 1117 | |
| 1118 | if (purb->status) |
| 1119 | dev_err(&cam->udev->dev, |
| 1120 | "error submitting urb (error=%i)\n", |
| 1121 | purb->status); |
| 1122 | } else |
| 1123 | DBG("read pipe complete state 0\n"); |
| 1124 | } |
| 1125 | |
| 1126 | static int zr364xx_start_readpipe(struct zr364xx_camera *cam) |
| 1127 | { |
| 1128 | int pipe; |
| 1129 | int retval; |
| 1130 | struct zr364xx_pipeinfo *pipe_info = cam->pipe; |
| 1131 | pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint); |
| 1132 | DBG("%s: start pipe IN x%x\n", __func__, cam->read_endpoint); |
| 1133 | |
| 1134 | pipe_info->state = 1; |
| 1135 | pipe_info->err_count = 0; |
| 1136 | pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1137 | if (!pipe_info->stream_urb) { |
| 1138 | dev_err(&cam->udev->dev, "ReadStream: Unable to alloc URB\n"); |
| 1139 | return -ENOMEM; |
| 1140 | } |
| 1141 | /* transfer buffer allocated in board_init */ |
| 1142 | usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev, |
| 1143 | pipe, |
| 1144 | pipe_info->transfer_buffer, |
| 1145 | pipe_info->transfer_size, |
| 1146 | read_pipe_completion, pipe_info); |
| 1147 | |
| 1148 | DBG("submitting URB %p\n", pipe_info->stream_urb); |
| 1149 | retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL); |
| 1150 | if (retval) { |
| 1151 | printk(KERN_ERR KBUILD_MODNAME ": start read pipe failed\n"); |
| 1152 | return retval; |
| 1153 | } |
| 1154 | |
| 1155 | return 0; |
| 1156 | } |
| 1157 | |
| 1158 | static void zr364xx_stop_readpipe(struct zr364xx_camera *cam) |
| 1159 | { |
| 1160 | struct zr364xx_pipeinfo *pipe_info; |
| 1161 | |
| 1162 | if (cam == NULL) { |
| 1163 | printk(KERN_ERR KBUILD_MODNAME ": invalid device\n"); |
| 1164 | return; |
| 1165 | } |
| 1166 | DBG("stop read pipe\n"); |
| 1167 | pipe_info = cam->pipe; |
| 1168 | if (pipe_info) { |
| 1169 | if (pipe_info->state != 0) |
| 1170 | pipe_info->state = 0; |
| 1171 | |
| 1172 | if (pipe_info->stream_urb) { |
| 1173 | /* cancel urb */ |
| 1174 | usb_kill_urb(pipe_info->stream_urb); |
| 1175 | usb_free_urb(pipe_info->stream_urb); |
| 1176 | pipe_info->stream_urb = NULL; |
| 1177 | } |
| 1178 | } |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1179 | return; |
| 1180 | } |
| 1181 | |
| 1182 | /* starts acquisition process */ |
| 1183 | static int zr364xx_start_acquire(struct zr364xx_camera *cam) |
| 1184 | { |
| 1185 | int j; |
| 1186 | |
| 1187 | DBG("start acquire\n"); |
| 1188 | |
| 1189 | cam->last_frame = -1; |
| 1190 | cam->cur_frame = 0; |
| 1191 | for (j = 0; j < FRAMES; j++) { |
| 1192 | cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE; |
| 1193 | cam->buffer.frame[j].cur_size = 0; |
| 1194 | } |
Lamarque Vieira Souza | 8c5f32a | 2009-07-20 20:46:42 -0300 | [diff] [blame] | 1195 | cam->b_acquire = 1; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1196 | return 0; |
| 1197 | } |
| 1198 | |
| 1199 | static inline int zr364xx_stop_acquire(struct zr364xx_camera *cam) |
| 1200 | { |
| 1201 | cam->b_acquire = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1202 | return 0; |
| 1203 | } |
| 1204 | |
| 1205 | static int zr364xx_vidioc_streamon(struct file *file, void *priv, |
| 1206 | enum v4l2_buf_type type) |
| 1207 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1208 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1209 | int j; |
| 1210 | int res; |
| 1211 | |
| 1212 | DBG("%s\n", __func__); |
| 1213 | |
| 1214 | if (cam->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1215 | dev_err(&cam->udev->dev, "invalid fh type0\n"); |
| 1216 | return -EINVAL; |
| 1217 | } |
| 1218 | if (cam->type != type) { |
| 1219 | dev_err(&cam->udev->dev, "invalid fh type1\n"); |
| 1220 | return -EINVAL; |
| 1221 | } |
| 1222 | |
| 1223 | if (!res_get(cam)) { |
| 1224 | dev_err(&cam->udev->dev, "stream busy\n"); |
| 1225 | return -EBUSY; |
| 1226 | } |
| 1227 | |
| 1228 | cam->last_frame = -1; |
| 1229 | cam->cur_frame = 0; |
| 1230 | cam->frame_count = 0; |
| 1231 | for (j = 0; j < FRAMES; j++) { |
| 1232 | cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE; |
| 1233 | cam->buffer.frame[j].cur_size = 0; |
| 1234 | } |
| 1235 | res = videobuf_streamon(&cam->vb_vidq); |
| 1236 | if (res == 0) { |
| 1237 | zr364xx_start_acquire(cam); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1238 | } else { |
| 1239 | res_free(cam); |
| 1240 | } |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1241 | return res; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1242 | } |
| 1243 | |
| 1244 | static int zr364xx_vidioc_streamoff(struct file *file, void *priv, |
| 1245 | enum v4l2_buf_type type) |
| 1246 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1247 | int res; |
| 1248 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1249 | |
| 1250 | DBG("%s\n", __func__); |
| 1251 | if (cam->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1252 | dev_err(&cam->udev->dev, "invalid fh type0\n"); |
| 1253 | return -EINVAL; |
| 1254 | } |
| 1255 | if (cam->type != type) { |
| 1256 | dev_err(&cam->udev->dev, "invalid fh type1\n"); |
| 1257 | return -EINVAL; |
| 1258 | } |
| 1259 | zr364xx_stop_acquire(cam); |
| 1260 | res = videobuf_streamoff(&cam->vb_vidq); |
| 1261 | if (res < 0) |
| 1262 | return res; |
| 1263 | res_free(cam); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1264 | return 0; |
| 1265 | } |
| 1266 | |
| 1267 | |
| 1268 | /* open the camera */ |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 1269 | static int zr364xx_open(struct file *file) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1270 | { |
| 1271 | struct video_device *vdev = video_devdata(file); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1272 | struct zr364xx_camera *cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1273 | struct usb_device *udev = cam->udev; |
| 1274 | int i, err; |
| 1275 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1276 | DBG("%s\n", __func__); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1277 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1278 | mutex_lock(&cam->open_lock); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1279 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1280 | if (cam->users) { |
| 1281 | err = -EBUSY; |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1282 | goto out; |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1283 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1284 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1285 | for (i = 0; init[cam->method][i].size != -1; i++) { |
| 1286 | err = |
| 1287 | send_control_msg(udev, 1, init[cam->method][i].value, |
| 1288 | 0, init[cam->method][i].bytes, |
| 1289 | init[cam->method][i].size); |
| 1290 | if (err < 0) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1291 | dev_err(&cam->udev->dev, |
| 1292 | "error during open sequence: %d\n", i); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1293 | goto out; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1294 | } |
| 1295 | } |
| 1296 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1297 | cam->skip = 2; |
| 1298 | cam->users++; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1299 | file->private_data = vdev; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1300 | cam->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1301 | cam->fmt = formats; |
| 1302 | |
| 1303 | videobuf_queue_vmalloc_init(&cam->vb_vidq, &zr364xx_video_qops, |
| 1304 | NULL, &cam->slock, |
| 1305 | cam->type, |
| 1306 | V4L2_FIELD_NONE, |
| 1307 | sizeof(struct zr364xx_buffer), cam); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1308 | |
| 1309 | /* Added some delay here, since opening/closing the camera quickly, |
| 1310 | * like Ekiga does during its startup, can crash the webcam |
| 1311 | */ |
| 1312 | mdelay(100); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1313 | err = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1314 | |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1315 | out: |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1316 | mutex_unlock(&cam->open_lock); |
| 1317 | DBG("%s: %d\n", __func__, err); |
Antoine Jacquet | 69025c9 | 2008-08-18 17:09:53 -0300 | [diff] [blame] | 1318 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1319 | } |
| 1320 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1321 | static void zr364xx_destroy(struct zr364xx_camera *cam) |
| 1322 | { |
| 1323 | unsigned long i; |
| 1324 | |
| 1325 | if (!cam) { |
| 1326 | printk(KERN_ERR KBUILD_MODNAME ", %s: no device\n", __func__); |
| 1327 | return; |
| 1328 | } |
| 1329 | mutex_lock(&cam->open_lock); |
| 1330 | if (cam->vdev) |
| 1331 | video_unregister_device(cam->vdev); |
| 1332 | cam->vdev = NULL; |
| 1333 | |
| 1334 | /* stops the read pipe if it is running */ |
| 1335 | if (cam->b_acquire) |
| 1336 | zr364xx_stop_acquire(cam); |
| 1337 | |
| 1338 | zr364xx_stop_readpipe(cam); |
| 1339 | |
| 1340 | /* release sys buffers */ |
| 1341 | for (i = 0; i < FRAMES; i++) { |
| 1342 | if (cam->buffer.frame[i].lpvbits) { |
| 1343 | DBG("vfree %p\n", cam->buffer.frame[i].lpvbits); |
| 1344 | vfree(cam->buffer.frame[i].lpvbits); |
| 1345 | } |
| 1346 | cam->buffer.frame[i].lpvbits = NULL; |
| 1347 | } |
| 1348 | |
| 1349 | /* release transfer buffer */ |
| 1350 | kfree(cam->pipe->transfer_buffer); |
| 1351 | cam->pipe->transfer_buffer = NULL; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1352 | mutex_unlock(&cam->open_lock); |
| 1353 | kfree(cam); |
| 1354 | cam = NULL; |
| 1355 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1356 | |
| 1357 | /* release the camera */ |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 1358 | static int zr364xx_release(struct file *file) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1359 | { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1360 | struct zr364xx_camera *cam; |
| 1361 | struct usb_device *udev; |
| 1362 | int i, err; |
| 1363 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1364 | DBG("%s\n", __func__); |
| 1365 | cam = video_drvdata(file); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1366 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1367 | if (!cam) |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1368 | return -ENODEV; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1369 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1370 | mutex_lock(&cam->open_lock); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1371 | udev = cam->udev; |
| 1372 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1373 | /* turn off stream */ |
| 1374 | if (res_check(cam)) { |
| 1375 | if (cam->b_acquire) |
| 1376 | zr364xx_stop_acquire(cam); |
| 1377 | videobuf_streamoff(&cam->vb_vidq); |
| 1378 | res_free(cam); |
| 1379 | } |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1380 | |
| 1381 | cam->users--; |
| 1382 | file->private_data = NULL; |
| 1383 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1384 | for (i = 0; i < 2; i++) { |
| 1385 | err = |
| 1386 | send_control_msg(udev, 1, init[cam->method][i].value, |
Roel Kluin | 7b80892 | 2009-08-11 08:10:25 -0300 | [diff] [blame] | 1387 | 0, init[cam->method][i].bytes, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1388 | init[cam->method][i].size); |
| 1389 | if (err < 0) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1390 | dev_err(&udev->dev, "error during release sequence\n"); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1391 | goto out; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1392 | } |
| 1393 | } |
| 1394 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1395 | /* Added some delay here, since opening/closing the camera quickly, |
| 1396 | * like Ekiga does during its startup, can crash the webcam |
| 1397 | */ |
| 1398 | mdelay(100); |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1399 | err = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1400 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1401 | out: |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1402 | mutex_unlock(&cam->open_lock); |
| 1403 | |
Antoine Jacquet | 33d27a4 | 2008-08-18 17:14:30 -0300 | [diff] [blame] | 1404 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1405 | } |
| 1406 | |
| 1407 | |
| 1408 | static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma) |
| 1409 | { |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1410 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1411 | int ret; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1412 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1413 | if (cam == NULL) { |
| 1414 | DBG("%s: cam == NULL\n", __func__); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1415 | return -ENODEV; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1416 | } |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1417 | DBG("mmap called, vma=0x%08lx\n", (unsigned long)vma); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1418 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1419 | ret = videobuf_mmap_mapper(&cam->vb_vidq, vma); |
| 1420 | |
| 1421 | DBG("vma start=0x%08lx, size=%ld, ret=%d\n", |
| 1422 | (unsigned long)vma->vm_start, |
| 1423 | (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret); |
| 1424 | return ret; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1425 | } |
| 1426 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1427 | static unsigned int zr364xx_poll(struct file *file, |
| 1428 | struct poll_table_struct *wait) |
| 1429 | { |
| 1430 | struct zr364xx_camera *cam = video_drvdata(file); |
| 1431 | struct videobuf_queue *q = &cam->vb_vidq; |
Lamarque Vieira Souza | 76594c5 | 2009-07-22 16:54:51 -0300 | [diff] [blame] | 1432 | _DBG("%s\n", __func__); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1433 | |
| 1434 | if (cam->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1435 | return POLLERR; |
| 1436 | |
| 1437 | return videobuf_poll_stream(file, q, wait); |
| 1438 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1439 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 1440 | static const struct v4l2_file_operations zr364xx_fops = { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1441 | .owner = THIS_MODULE, |
| 1442 | .open = zr364xx_open, |
| 1443 | .release = zr364xx_release, |
| 1444 | .read = zr364xx_read, |
| 1445 | .mmap = zr364xx_mmap, |
| 1446 | .ioctl = video_ioctl2, |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1447 | .poll = zr364xx_poll, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1448 | }; |
| 1449 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1450 | static const struct v4l2_ioctl_ops zr364xx_ioctl_ops = { |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1451 | .vidioc_querycap = zr364xx_vidioc_querycap, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1452 | .vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap, |
| 1453 | .vidioc_try_fmt_vid_cap = zr364xx_vidioc_try_fmt_vid_cap, |
| 1454 | .vidioc_s_fmt_vid_cap = zr364xx_vidioc_s_fmt_vid_cap, |
| 1455 | .vidioc_g_fmt_vid_cap = zr364xx_vidioc_g_fmt_vid_cap, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1456 | .vidioc_enum_input = zr364xx_vidioc_enum_input, |
| 1457 | .vidioc_g_input = zr364xx_vidioc_g_input, |
| 1458 | .vidioc_s_input = zr364xx_vidioc_s_input, |
| 1459 | .vidioc_streamon = zr364xx_vidioc_streamon, |
| 1460 | .vidioc_streamoff = zr364xx_vidioc_streamoff, |
| 1461 | .vidioc_queryctrl = zr364xx_vidioc_queryctrl, |
| 1462 | .vidioc_g_ctrl = zr364xx_vidioc_g_ctrl, |
| 1463 | .vidioc_s_ctrl = zr364xx_vidioc_s_ctrl, |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1464 | .vidioc_reqbufs = zr364xx_vidioc_reqbufs, |
| 1465 | .vidioc_querybuf = zr364xx_vidioc_querybuf, |
| 1466 | .vidioc_qbuf = zr364xx_vidioc_qbuf, |
| 1467 | .vidioc_dqbuf = zr364xx_vidioc_dqbuf, |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1468 | }; |
| 1469 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1470 | static struct video_device zr364xx_template = { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1471 | .name = DRIVER_DESC, |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1472 | .fops = &zr364xx_fops, |
| 1473 | .ioctl_ops = &zr364xx_ioctl_ops, |
| 1474 | .release = video_device_release, |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1475 | }; |
| 1476 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1477 | |
| 1478 | |
| 1479 | /*******************/ |
| 1480 | /* USB integration */ |
| 1481 | /*******************/ |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1482 | static int zr364xx_board_init(struct zr364xx_camera *cam) |
| 1483 | { |
| 1484 | struct zr364xx_pipeinfo *pipe = cam->pipe; |
| 1485 | unsigned long i; |
| 1486 | |
| 1487 | DBG("board init: %p\n", cam); |
| 1488 | memset(pipe, 0, sizeof(*pipe)); |
| 1489 | pipe->cam = cam; |
| 1490 | pipe->transfer_size = BUFFER_SIZE; |
| 1491 | |
| 1492 | pipe->transfer_buffer = kzalloc(pipe->transfer_size, |
| 1493 | GFP_KERNEL); |
| 1494 | if (pipe->transfer_buffer == NULL) { |
| 1495 | DBG("out of memory!\n"); |
| 1496 | return -ENOMEM; |
| 1497 | } |
| 1498 | |
| 1499 | cam->b_acquire = 0; |
| 1500 | cam->frame_count = 0; |
| 1501 | |
| 1502 | /*** start create system buffers ***/ |
| 1503 | for (i = 0; i < FRAMES; i++) { |
| 1504 | /* always allocate maximum size for system buffers */ |
| 1505 | cam->buffer.frame[i].lpvbits = vmalloc(MAX_FRAME_SIZE); |
| 1506 | |
| 1507 | DBG("valloc %p, idx %lu, pdata %p\n", |
| 1508 | &cam->buffer.frame[i], i, |
| 1509 | cam->buffer.frame[i].lpvbits); |
| 1510 | if (cam->buffer.frame[i].lpvbits == NULL) { |
| 1511 | printk(KERN_INFO KBUILD_MODNAME ": out of memory. " |
| 1512 | "Using less frames\n"); |
| 1513 | break; |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | if (i == 0) { |
| 1518 | printk(KERN_INFO KBUILD_MODNAME ": out of memory. Aborting\n"); |
| 1519 | kfree(cam->pipe->transfer_buffer); |
| 1520 | cam->pipe->transfer_buffer = NULL; |
| 1521 | return -ENOMEM; |
| 1522 | } else |
| 1523 | cam->buffer.dwFrames = i; |
| 1524 | |
| 1525 | /* make sure internal states are set */ |
| 1526 | for (i = 0; i < FRAMES; i++) { |
| 1527 | cam->buffer.frame[i].ulState = ZR364XX_READ_IDLE; |
| 1528 | cam->buffer.frame[i].cur_size = 0; |
| 1529 | } |
| 1530 | |
| 1531 | cam->cur_frame = 0; |
| 1532 | cam->last_frame = -1; |
| 1533 | /*** end create system buffers ***/ |
| 1534 | |
| 1535 | /* start read pipe */ |
| 1536 | zr364xx_start_readpipe(cam); |
| 1537 | DBG(": board initialized\n"); |
| 1538 | return 0; |
| 1539 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1540 | |
| 1541 | static int zr364xx_probe(struct usb_interface *intf, |
| 1542 | const struct usb_device_id *id) |
| 1543 | { |
| 1544 | struct usb_device *udev = interface_to_usbdev(intf); |
| 1545 | struct zr364xx_camera *cam = NULL; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1546 | struct usb_host_interface *iface_desc; |
| 1547 | struct usb_endpoint_descriptor *endpoint; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1548 | int err; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1549 | int i; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1550 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1551 | DBG("probing...\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1552 | |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1553 | dev_info(&intf->dev, DRIVER_DESC " compatible webcam plugged\n"); |
| 1554 | dev_info(&intf->dev, "model %04x:%04x detected\n", |
| 1555 | le16_to_cpu(udev->descriptor.idVendor), |
| 1556 | le16_to_cpu(udev->descriptor.idProduct)); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1557 | |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1558 | cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL); |
| 1559 | if (cam == NULL) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1560 | dev_err(&udev->dev, "cam: out of memory !\n"); |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1561 | return -ENOMEM; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1562 | } |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1563 | /* save the init method used by this camera */ |
| 1564 | cam->method = id->driver_info; |
| 1565 | |
| 1566 | cam->vdev = video_device_alloc(); |
| 1567 | if (cam->vdev == NULL) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1568 | dev_err(&udev->dev, "cam->vdev: out of memory !\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1569 | kfree(cam); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1570 | cam = NULL; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1571 | return -ENOMEM; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1572 | } |
| 1573 | memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template)); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1574 | cam->vdev->parent = &intf->dev; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1575 | video_set_drvdata(cam->vdev, cam); |
| 1576 | if (debug) |
| 1577 | cam->vdev->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; |
| 1578 | |
| 1579 | cam->udev = udev; |
| 1580 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1581 | switch (mode) { |
| 1582 | case 1: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1583 | dev_info(&udev->dev, "160x120 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1584 | cam->width = 160; |
| 1585 | cam->height = 120; |
| 1586 | break; |
| 1587 | case 2: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1588 | dev_info(&udev->dev, "640x480 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1589 | cam->width = 640; |
| 1590 | cam->height = 480; |
| 1591 | break; |
| 1592 | default: |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1593 | dev_info(&udev->dev, "320x240 mode selected\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1594 | cam->width = 320; |
| 1595 | cam->height = 240; |
| 1596 | break; |
| 1597 | } |
| 1598 | |
| 1599 | m0d1[0] = mode; |
| 1600 | m1[2].value = 0xf000 + mode; |
| 1601 | m2[1].value = 0xf000 + mode; |
Antoine Jacquet | 08135ba | 2009-12-27 18:22:05 -0300 | [diff] [blame] | 1602 | |
| 1603 | /* special case for METHOD3, the modes are different */ |
| 1604 | if (cam->method == METHOD3) { |
| 1605 | switch (mode) { |
| 1606 | case 1: |
| 1607 | m2[1].value = 0xf000 + 4; |
| 1608 | break; |
| 1609 | case 2: |
| 1610 | m2[1].value = 0xf000 + 0; |
| 1611 | break; |
| 1612 | default: |
| 1613 | m2[1].value = 0xf000 + 1; |
| 1614 | break; |
| 1615 | } |
| 1616 | } |
| 1617 | |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1618 | header2[437] = cam->height / 256; |
| 1619 | header2[438] = cam->height % 256; |
| 1620 | header2[439] = cam->width / 256; |
| 1621 | header2[440] = cam->width % 256; |
| 1622 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1623 | cam->users = 0; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1624 | cam->nb = 0; |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1625 | cam->mode.brightness = 64; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1626 | mutex_init(&cam->lock); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1627 | mutex_init(&cam->open_lock); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1628 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1629 | DBG("dev: %p, udev %p interface %p\n", cam, cam->udev, intf); |
| 1630 | |
| 1631 | /* set up the endpoint information */ |
| 1632 | iface_desc = intf->cur_altsetting; |
| 1633 | DBG("num endpoints %d\n", iface_desc->desc.bNumEndpoints); |
| 1634 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { |
| 1635 | endpoint = &iface_desc->endpoint[i].desc; |
| 1636 | if (!cam->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) { |
| 1637 | /* we found the bulk in endpoint */ |
| 1638 | cam->read_endpoint = endpoint->bEndpointAddress; |
| 1639 | } |
| 1640 | } |
| 1641 | |
| 1642 | if (!cam->read_endpoint) { |
| 1643 | dev_err(&intf->dev, "Could not find bulk-in endpoint\n"); |
| 1644 | return -ENOMEM; |
| 1645 | } |
| 1646 | |
| 1647 | /* v4l */ |
| 1648 | INIT_LIST_HEAD(&cam->vidq.active); |
| 1649 | cam->vidq.cam = cam; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1650 | err = video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1); |
| 1651 | if (err) { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1652 | dev_err(&udev->dev, "video_register_device failed\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1653 | video_device_release(cam->vdev); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1654 | kfree(cam); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1655 | cam = NULL; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1656 | return err; |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1657 | } |
| 1658 | |
| 1659 | usb_set_intfdata(intf, cam); |
| 1660 | |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1661 | /* load zr364xx board specific */ |
| 1662 | err = zr364xx_board_init(cam); |
| 1663 | if (err) { |
| 1664 | spin_lock_init(&cam->slock); |
| 1665 | return err; |
| 1666 | } |
| 1667 | |
| 1668 | spin_lock_init(&cam->slock); |
| 1669 | |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 1670 | dev_info(&udev->dev, DRIVER_DESC " controlling device %s\n", |
| 1671 | video_device_node_name(cam->vdev)); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1672 | return 0; |
| 1673 | } |
| 1674 | |
| 1675 | |
| 1676 | static void zr364xx_disconnect(struct usb_interface *intf) |
| 1677 | { |
| 1678 | struct zr364xx_camera *cam = usb_get_intfdata(intf); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1679 | videobuf_mmap_free(&cam->vb_vidq); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1680 | usb_set_intfdata(intf, NULL); |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1681 | dev_info(&intf->dev, DRIVER_DESC " webcam unplugged\n"); |
Lamarque Vieira Souza | ccbf035 | 2009-07-15 20:54:55 -0300 | [diff] [blame] | 1682 | zr364xx_destroy(cam); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1683 | } |
| 1684 | |
| 1685 | |
| 1686 | |
| 1687 | /**********************/ |
| 1688 | /* Module integration */ |
| 1689 | /**********************/ |
| 1690 | |
| 1691 | static struct usb_driver zr364xx_driver = { |
| 1692 | .name = "zr364xx", |
| 1693 | .probe = zr364xx_probe, |
| 1694 | .disconnect = zr364xx_disconnect, |
| 1695 | .id_table = device_table |
| 1696 | }; |
| 1697 | |
| 1698 | |
| 1699 | static int __init zr364xx_init(void) |
| 1700 | { |
| 1701 | int retval; |
Akinobu Mita | 783aa8f | 2007-05-20 09:12:10 -0300 | [diff] [blame] | 1702 | retval = usb_register(&zr364xx_driver); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1703 | if (retval) |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1704 | printk(KERN_ERR KBUILD_MODNAME ": usb_register failed!\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1705 | else |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1706 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1707 | return retval; |
| 1708 | } |
| 1709 | |
| 1710 | |
| 1711 | static void __exit zr364xx_exit(void) |
| 1712 | { |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 1713 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC " module unloaded\n"); |
Antoine Jacquet | b7eee61 | 2007-04-27 12:30:59 -0300 | [diff] [blame] | 1714 | usb_deregister(&zr364xx_driver); |
| 1715 | } |
| 1716 | |
| 1717 | |
| 1718 | module_init(zr364xx_init); |
| 1719 | module_exit(zr364xx_exit); |
| 1720 | |
| 1721 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 1722 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 1723 | MODULE_LICENSE("GPL"); |