Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Virtual Video driver - This code emulates a real video device with v4l2 api |
| 3 | * |
| 4 | * Copyright (c) 2006 by: |
| 5 | * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> |
| 6 | * Ted Walther <ted--a.t--enumera.com> |
| 7 | * John Sokol <sokol--a.t--videotechnology.com> |
| 8 | * http://v4l.videotechnology.com/ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the BSD Licence, GNU General Public License |
| 12 | * as published by the Free Software Foundation; either version 2 of the |
| 13 | * License, or (at your option) any later version |
| 14 | */ |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/fs.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/mm.h> |
| 22 | #include <linux/ioport.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/sched.h> |
| 25 | #include <linux/pci.h> |
| 26 | #include <linux/random.h> |
| 27 | #include <linux/version.h> |
Matthias Kaehlcke | 51b5402 | 2007-07-02 10:19:38 -0300 | [diff] [blame] | 28 | #include <linux/mutex.h> |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 29 | #include <linux/videodev2.h> |
Andrew Morton | 1095136 | 2006-04-27 10:10:58 -0300 | [diff] [blame] | 30 | #include <linux/dma-mapping.h> |
Mauro Carvalho Chehab | cd41e28 | 2006-04-09 15:43:41 -0300 | [diff] [blame] | 31 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 32 | /* Include V4L1 specific functions. Should be removed soon */ |
| 33 | #include <linux/videodev.h> |
| 34 | #endif |
Michael Krufky | f13df91 | 2006-03-23 22:01:44 -0300 | [diff] [blame] | 35 | #include <linux/interrupt.h> |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 36 | #include <media/videobuf-vmalloc.h> |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 37 | #include <media/v4l2-common.h> |
| 38 | #include <linux/kthread.h> |
| 39 | #include <linux/highmem.h> |
Nigel Cunningham | 7dfb710 | 2006-12-06 20:34:23 -0800 | [diff] [blame] | 40 | #include <linux/freezer.h> |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 41 | |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 42 | #define VIVI_MODULE_NAME "vivi" |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 43 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 44 | /* Wake up at about 30 fps */ |
| 45 | #define WAKE_NUMERATOR 30 |
| 46 | #define WAKE_DENOMINATOR 1001 |
| 47 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ |
| 48 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 49 | #include "font.h" |
| 50 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 51 | #define VIVI_MAJOR_VERSION 0 |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 52 | #define VIVI_MINOR_VERSION 5 |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 53 | #define VIVI_RELEASE 0 |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 54 | #define VIVI_VERSION \ |
| 55 | KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 56 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 57 | /* Declare static vars that will be used as parameters */ |
| 58 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 59 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 60 | static int n_devs = 1; /* Number of virtual devices */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 61 | |
| 62 | /* supported controls */ |
| 63 | static struct v4l2_queryctrl vivi_qctrl[] = { |
| 64 | { |
| 65 | .id = V4L2_CID_AUDIO_VOLUME, |
| 66 | .name = "Volume", |
| 67 | .minimum = 0, |
| 68 | .maximum = 65535, |
| 69 | .step = 65535/100, |
| 70 | .default_value = 65535, |
| 71 | .flags = 0, |
| 72 | .type = V4L2_CTRL_TYPE_INTEGER, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 73 | }, { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 74 | .id = V4L2_CID_BRIGHTNESS, |
| 75 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 76 | .name = "Brightness", |
| 77 | .minimum = 0, |
| 78 | .maximum = 255, |
| 79 | .step = 1, |
| 80 | .default_value = 127, |
| 81 | .flags = 0, |
| 82 | }, { |
| 83 | .id = V4L2_CID_CONTRAST, |
| 84 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 85 | .name = "Contrast", |
| 86 | .minimum = 0, |
| 87 | .maximum = 255, |
| 88 | .step = 0x1, |
| 89 | .default_value = 0x10, |
| 90 | .flags = 0, |
| 91 | }, { |
| 92 | .id = V4L2_CID_SATURATION, |
| 93 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 94 | .name = "Saturation", |
| 95 | .minimum = 0, |
| 96 | .maximum = 255, |
| 97 | .step = 0x1, |
| 98 | .default_value = 127, |
| 99 | .flags = 0, |
| 100 | }, { |
| 101 | .id = V4L2_CID_HUE, |
| 102 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 103 | .name = "Hue", |
| 104 | .minimum = -128, |
| 105 | .maximum = 127, |
| 106 | .step = 0x1, |
| 107 | .default_value = 0, |
| 108 | .flags = 0, |
| 109 | } |
| 110 | }; |
| 111 | |
| 112 | static int qctl_regs[ARRAY_SIZE(vivi_qctrl)]; |
| 113 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 114 | #define dprintk(dev, level, fmt, arg...) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 115 | do { \ |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 116 | if (dev->vfd->debug >= (level)) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 117 | printk(KERN_DEBUG "vivi: " fmt , ## arg); \ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 118 | } while (0) |
| 119 | |
| 120 | /* ------------------------------------------------------------------ |
| 121 | Basic structures |
| 122 | ------------------------------------------------------------------*/ |
| 123 | |
| 124 | struct vivi_fmt { |
| 125 | char *name; |
| 126 | u32 fourcc; /* v4l2 format id */ |
| 127 | int depth; |
| 128 | }; |
| 129 | |
| 130 | static struct vivi_fmt format = { |
| 131 | .name = "4:2:2, packed, YUYV", |
| 132 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 133 | .depth = 16, |
| 134 | }; |
| 135 | |
| 136 | struct sg_to_addr { |
| 137 | int pos; |
| 138 | struct scatterlist *sg; |
| 139 | }; |
| 140 | |
| 141 | /* buffer for one video frame */ |
| 142 | struct vivi_buffer { |
| 143 | /* common v4l buffer stuff -- must be first */ |
| 144 | struct videobuf_buffer vb; |
| 145 | |
| 146 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 147 | }; |
| 148 | |
| 149 | struct vivi_dmaqueue { |
| 150 | struct list_head active; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 151 | |
| 152 | /* thread for generating video stream*/ |
| 153 | struct task_struct *kthread; |
| 154 | wait_queue_head_t wq; |
| 155 | /* Counters to control fps rate */ |
| 156 | int frame; |
| 157 | int ini_jiffies; |
| 158 | }; |
| 159 | |
| 160 | static LIST_HEAD(vivi_devlist); |
| 161 | |
| 162 | struct vivi_dev { |
| 163 | struct list_head vivi_devlist; |
| 164 | |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 165 | spinlock_t slock; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 166 | struct mutex mutex; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 167 | |
| 168 | int users; |
| 169 | |
| 170 | /* various device info */ |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 171 | struct video_device *vfd; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 172 | |
| 173 | struct vivi_dmaqueue vidq; |
| 174 | |
| 175 | /* Several counters */ |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 176 | int h, m, s, ms; |
| 177 | unsigned long jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 178 | char timestr[13]; |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 179 | |
| 180 | int mv_count; /* Controls bars movement */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 181 | }; |
| 182 | |
| 183 | struct vivi_fh { |
| 184 | struct vivi_dev *dev; |
| 185 | |
| 186 | /* video capture */ |
| 187 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 188 | unsigned int width, height; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 189 | struct videobuf_queue vb_vidq; |
| 190 | |
| 191 | enum v4l2_buf_type type; |
| 192 | }; |
| 193 | |
| 194 | /* ------------------------------------------------------------------ |
| 195 | DMA and thread functions |
| 196 | ------------------------------------------------------------------*/ |
| 197 | |
| 198 | /* Bars and Colors should match positions */ |
| 199 | |
| 200 | enum colors { |
| 201 | WHITE, |
| 202 | AMBAR, |
| 203 | CYAN, |
| 204 | GREEN, |
| 205 | MAGENTA, |
| 206 | RED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 207 | BLUE, |
| 208 | BLACK, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 209 | }; |
| 210 | |
| 211 | static u8 bars[8][3] = { |
| 212 | /* R G B */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 213 | {204, 204, 204}, /* white */ |
| 214 | {208, 208, 0}, /* ambar */ |
| 215 | { 0, 206, 206}, /* cyan */ |
| 216 | { 0, 239, 0}, /* green */ |
| 217 | {239, 0, 239}, /* magenta */ |
| 218 | {205, 0, 0}, /* red */ |
| 219 | { 0, 0, 255}, /* blue */ |
| 220 | { 0, 0, 0}, /* black */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 221 | }; |
| 222 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 223 | #define TO_Y(r, g, b) \ |
| 224 | (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 225 | /* RGB to V(Cr) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 226 | #define TO_V(r, g, b) \ |
| 227 | (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 228 | /* RGB to U(Cb) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 229 | #define TO_U(r, g, b) \ |
| 230 | (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 231 | |
| 232 | #define TSTAMP_MIN_Y 24 |
| 233 | #define TSTAMP_MAX_Y TSTAMP_MIN_Y+15 |
| 234 | #define TSTAMP_MIN_X 64 |
| 235 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 236 | static void gen_line(char *basep, int inipos, int wmax, |
| 237 | int hmax, int line, int count, char *timestr) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 238 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 239 | int w, i, j, y; |
| 240 | int pos = inipos; |
| 241 | char *p, *s; |
| 242 | u8 chr, r, g, b, color; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 243 | |
| 244 | /* We will just duplicate the second pixel at the packet */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 245 | wmax /= 2; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 246 | |
| 247 | /* Generate a standard color bar pattern */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 248 | for (w = 0; w < wmax; w++) { |
| 249 | int colorpos = ((w + count) * 8/(wmax + 1)) % 8; |
| 250 | r = bars[colorpos][0]; |
| 251 | g = bars[colorpos][1]; |
| 252 | b = bars[colorpos][2]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 253 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 254 | for (color = 0; color < 4; color++) { |
| 255 | p = basep + pos; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 256 | |
| 257 | switch (color) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 258 | case 0: |
| 259 | case 2: |
| 260 | *p = TO_Y(r, g, b); /* Luma */ |
| 261 | break; |
| 262 | case 1: |
| 263 | *p = TO_U(r, g, b); /* Cb */ |
| 264 | break; |
| 265 | case 3: |
| 266 | *p = TO_V(r, g, b); /* Cr */ |
| 267 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 268 | } |
| 269 | pos++; |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | /* Checks if it is possible to show timestamp */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 274 | if (TSTAMP_MAX_Y >= hmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 275 | goto end; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 276 | if (TSTAMP_MIN_X + strlen(timestr) >= wmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 277 | goto end; |
| 278 | |
| 279 | /* Print stream time */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 280 | if (line >= TSTAMP_MIN_Y && line <= TSTAMP_MAX_Y) { |
| 281 | j = TSTAMP_MIN_X; |
| 282 | for (s = timestr; *s; s++) { |
| 283 | chr = rom8x16_bits[(*s-0x30)*16+line-TSTAMP_MIN_Y]; |
| 284 | for (i = 0; i < 7; i++) { |
| 285 | if (chr & 1 << (7 - i)) { |
| 286 | /* Font color*/ |
| 287 | r = 0; |
| 288 | g = 198; |
| 289 | b = 0; |
| 290 | } else { |
| 291 | /* Background color */ |
| 292 | r = bars[BLACK][0]; |
| 293 | g = bars[BLACK][1]; |
| 294 | b = bars[BLACK][2]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 295 | } |
| 296 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 297 | pos = inipos + j * 2; |
| 298 | for (color = 0; color < 4; color++) { |
| 299 | p = basep + pos; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 300 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 301 | y = TO_Y(r, g, b); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 302 | |
| 303 | switch (color) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 304 | case 0: |
| 305 | case 2: |
| 306 | *p = TO_Y(r, g, b); /* Luma */ |
| 307 | break; |
| 308 | case 1: |
| 309 | *p = TO_U(r, g, b); /* Cb */ |
| 310 | break; |
| 311 | case 3: |
| 312 | *p = TO_V(r, g, b); /* Cr */ |
| 313 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 314 | } |
| 315 | pos++; |
| 316 | } |
| 317 | j++; |
| 318 | } |
| 319 | } |
| 320 | } |
| 321 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 322 | end: |
Mauro Carvalho Chehab | b50e7fe | 2007-01-25 05:00:01 -0300 | [diff] [blame] | 323 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 324 | } |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 325 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 326 | static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 327 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 328 | int h , pos = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 329 | int hmax = buf->vb.height; |
| 330 | int wmax = buf->vb.width; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 331 | struct timeval ts; |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 332 | char *tmpbuf; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 333 | void *vbuf = videobuf_to_vmalloc(&buf->vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 334 | |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 335 | if (!vbuf) |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 336 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 337 | |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 338 | tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); |
| 339 | if (!tmpbuf) |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 340 | return; |
| 341 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 342 | for (h = 0; h < hmax; h++) { |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 343 | gen_line(tmpbuf, 0, wmax, hmax, h, dev->mv_count, |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 344 | dev->timestr); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 345 | memcpy(vbuf + pos, tmpbuf, wmax * 2); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 346 | pos += wmax*2; |
| 347 | } |
| 348 | |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 349 | dev->mv_count++; |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 350 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 351 | kfree(tmpbuf); |
| 352 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 353 | /* Updates stream time */ |
| 354 | |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 355 | dev->ms += jiffies_to_msecs(jiffies-dev->jiffies); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 356 | dev->jiffies = jiffies; |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 357 | if (dev->ms >= 1000) { |
| 358 | dev->ms -= 1000; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 359 | dev->s++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 360 | if (dev->s >= 60) { |
| 361 | dev->s -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 362 | dev->m++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 363 | if (dev->m > 60) { |
| 364 | dev->m -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 365 | dev->h++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 366 | if (dev->h > 24) |
| 367 | dev->h -= 24; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 368 | } |
| 369 | } |
| 370 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 371 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 372 | dev->h, dev->m, dev->s, dev->ms); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 373 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 374 | dprintk(dev, 2, "vivifill at %s: Buffer 0x%08lx size= %d\n", |
| 375 | dev->timestr, (unsigned long)tmpbuf, pos); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 376 | |
| 377 | /* Advice that buffer was filled */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 378 | buf->vb.field_count++; |
| 379 | do_gettimeofday(&ts); |
| 380 | buf->vb.ts = ts; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 381 | buf->vb.state = VIDEOBUF_DONE; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 382 | } |
| 383 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 384 | static void vivi_thread_tick(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 385 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 386 | struct vivi_buffer *buf; |
| 387 | struct vivi_dev *dev = fh->dev; |
| 388 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 389 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 390 | unsigned long flags = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 391 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 392 | dprintk(dev, 1, "Thread tick\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 393 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 394 | spin_lock_irqsave(&dev->slock, flags); |
| 395 | if (list_empty(&dma_q->active)) { |
| 396 | dprintk(dev, 1, "No active queue to serve\n"); |
| 397 | goto unlock; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 398 | } |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 399 | |
| 400 | buf = list_entry(dma_q->active.next, |
| 401 | struct vivi_buffer, vb.queue); |
| 402 | |
| 403 | /* Nobody is waiting on this buffer, return */ |
| 404 | if (!waitqueue_active(&buf->vb.done)) |
| 405 | goto unlock; |
| 406 | |
| 407 | list_del(&buf->vb.queue); |
| 408 | |
| 409 | do_gettimeofday(&buf->vb.ts); |
| 410 | |
| 411 | /* Fill buffer */ |
| 412 | vivi_fillbuff(dev, buf); |
| 413 | dprintk(dev, 1, "filled buffer %p\n", buf); |
| 414 | |
| 415 | wake_up(&buf->vb.done); |
| 416 | dprintk(dev, 2, "[%p/%d] wakeup\n", buf, buf->vb. i); |
| 417 | unlock: |
| 418 | spin_unlock_irqrestore(&dev->slock, flags); |
| 419 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 420 | } |
| 421 | |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 422 | #define frames_to_ms(frames) \ |
| 423 | ((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR) |
| 424 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 425 | static void vivi_sleep(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 426 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 427 | struct vivi_dev *dev = fh->dev; |
| 428 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
| 429 | int timeout; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 430 | DECLARE_WAITQUEUE(wait, current); |
| 431 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 432 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __func__, |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 433 | (unsigned long)dma_q); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 434 | |
| 435 | add_wait_queue(&dma_q->wq, &wait); |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 436 | if (kthread_should_stop()) |
| 437 | goto stop_task; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 438 | |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 439 | /* Calculate time to wake up */ |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 440 | timeout = msecs_to_jiffies(frames_to_ms(1)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 441 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 442 | vivi_thread_tick(fh); |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 443 | |
| 444 | schedule_timeout_interruptible(timeout); |
| 445 | |
| 446 | stop_task: |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 447 | remove_wait_queue(&dma_q->wq, &wait); |
| 448 | try_to_freeze(); |
| 449 | } |
| 450 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 451 | static int vivi_thread(void *data) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 452 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 453 | struct vivi_fh *fh = data; |
| 454 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 455 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 456 | dprintk(dev, 1, "thread started\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 457 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 458 | set_freezable(); |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 459 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 460 | for (;;) { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 461 | vivi_sleep(fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 462 | |
| 463 | if (kthread_should_stop()) |
| 464 | break; |
| 465 | } |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 466 | dprintk(dev, 1, "thread: exit\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 467 | return 0; |
| 468 | } |
| 469 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 470 | static int vivi_start_thread(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 471 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 472 | struct vivi_dev *dev = fh->dev; |
| 473 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 474 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 475 | dma_q->frame = 0; |
| 476 | dma_q->ini_jiffies = jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 477 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 478 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 479 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 480 | dma_q->kthread = kthread_run(vivi_thread, fh, "vivi"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 481 | |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 482 | if (IS_ERR(dma_q->kthread)) { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 483 | printk(KERN_ERR "vivi: kernel_thread() failed\n"); |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 484 | return PTR_ERR(dma_q->kthread); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 485 | } |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 486 | /* Wakes thread */ |
| 487 | wake_up_interruptible(&dma_q->wq); |
| 488 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 489 | dprintk(dev, 1, "returning from %s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 490 | return 0; |
| 491 | } |
| 492 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 493 | static void vivi_stop_thread(struct vivi_dmaqueue *dma_q) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 494 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 495 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
| 496 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 497 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 498 | /* shutdown control thread */ |
| 499 | if (dma_q->kthread) { |
| 500 | kthread_stop(dma_q->kthread); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 501 | dma_q->kthread = NULL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 502 | } |
| 503 | } |
| 504 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 505 | /* ------------------------------------------------------------------ |
| 506 | Videobuf operations |
| 507 | ------------------------------------------------------------------*/ |
| 508 | static int |
| 509 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) |
| 510 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 511 | struct vivi_fh *fh = vq->priv_data; |
| 512 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 513 | |
| 514 | *size = fh->width*fh->height*2; |
| 515 | |
| 516 | if (0 == *count) |
| 517 | *count = 32; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 518 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 519 | while (*size * *count > vid_limit * 1024 * 1024) |
| 520 | (*count)--; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 521 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 522 | dprintk(dev, 1, "%s, count=%d, size=%d\n", __func__, |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 523 | *count, *size); |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 524 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 525 | return 0; |
| 526 | } |
| 527 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 528 | static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 529 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 530 | struct vivi_fh *fh = vq->priv_data; |
| 531 | struct vivi_dev *dev = fh->dev; |
| 532 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 533 | dprintk(dev, 1, "%s, state: %i\n", __func__, buf->vb.state); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 534 | |
| 535 | if (in_interrupt()) |
| 536 | BUG(); |
| 537 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 538 | videobuf_vmalloc_free(&buf->vb); |
Mauro Carvalho Chehab | fbde31d | 2008-04-13 14:57:44 -0300 | [diff] [blame] | 539 | dprintk(dev, 1, "free_buffer: freed\n"); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 540 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 541 | } |
| 542 | |
| 543 | #define norm_maxw() 1024 |
| 544 | #define norm_maxh() 768 |
| 545 | static int |
| 546 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 547 | enum v4l2_field field) |
| 548 | { |
| 549 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 550 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 551 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 552 | int rc; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 553 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 554 | dprintk(dev, 1, "%s, field=%d\n", __func__, field); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 555 | |
| 556 | BUG_ON(NULL == fh->fmt); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 557 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 558 | if (fh->width < 48 || fh->width > norm_maxw() || |
| 559 | fh->height < 32 || fh->height > norm_maxh()) |
| 560 | return -EINVAL; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 561 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 562 | buf->vb.size = fh->width*fh->height*2; |
| 563 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 564 | return -EINVAL; |
| 565 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 566 | /* These properties only change when queue is idle, see s_fmt */ |
| 567 | buf->fmt = fh->fmt; |
| 568 | buf->vb.width = fh->width; |
| 569 | buf->vb.height = fh->height; |
| 570 | buf->vb.field = field; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 571 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 572 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 573 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
| 574 | if (rc < 0) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 575 | goto fail; |
| 576 | } |
| 577 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 578 | buf->vb.state = VIDEOBUF_PREPARED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 579 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 580 | return 0; |
| 581 | |
| 582 | fail: |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 583 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 584 | return rc; |
| 585 | } |
| 586 | |
| 587 | static void |
| 588 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 589 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 590 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
| 591 | struct vivi_fh *fh = vq->priv_data; |
| 592 | struct vivi_dev *dev = fh->dev; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 593 | struct vivi_dmaqueue *vidq = &dev->vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 594 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 595 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 596 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 597 | buf->vb.state = VIDEOBUF_QUEUED; |
| 598 | list_add_tail(&buf->vb.queue, &vidq->active); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 599 | } |
| 600 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 601 | static void buffer_release(struct videobuf_queue *vq, |
| 602 | struct videobuf_buffer *vb) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 603 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 604 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 605 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 606 | struct vivi_dev *dev = (struct vivi_dev *)fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 607 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 608 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 609 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 610 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 611 | } |
| 612 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 613 | static struct videobuf_queue_ops vivi_video_qops = { |
| 614 | .buf_setup = buffer_setup, |
| 615 | .buf_prepare = buffer_prepare, |
| 616 | .buf_queue = buffer_queue, |
| 617 | .buf_release = buffer_release, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 618 | }; |
| 619 | |
| 620 | /* ------------------------------------------------------------------ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 621 | IOCTL vidioc handling |
| 622 | ------------------------------------------------------------------*/ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 623 | static int vidioc_querycap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 624 | struct v4l2_capability *cap) |
| 625 | { |
| 626 | strcpy(cap->driver, "vivi"); |
| 627 | strcpy(cap->card, "vivi"); |
| 628 | cap->version = VIVI_VERSION; |
| 629 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 630 | V4L2_CAP_STREAMING | |
| 631 | V4L2_CAP_READWRITE; |
| 632 | return 0; |
| 633 | } |
| 634 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 635 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 636 | struct v4l2_fmtdesc *f) |
| 637 | { |
| 638 | if (f->index > 0) |
| 639 | return -EINVAL; |
| 640 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 641 | strlcpy(f->description, format.name, sizeof(f->description)); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 642 | f->pixelformat = format.fourcc; |
| 643 | return 0; |
| 644 | } |
| 645 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 646 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 647 | struct v4l2_format *f) |
| 648 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 649 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 650 | |
| 651 | f->fmt.pix.width = fh->width; |
| 652 | f->fmt.pix.height = fh->height; |
| 653 | f->fmt.pix.field = fh->vb_vidq.field; |
| 654 | f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| 655 | f->fmt.pix.bytesperline = |
| 656 | (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| 657 | f->fmt.pix.sizeimage = |
| 658 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 659 | |
| 660 | return (0); |
| 661 | } |
| 662 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 663 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 664 | struct v4l2_format *f) |
| 665 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 666 | struct vivi_fh *fh = priv; |
| 667 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 668 | struct vivi_fmt *fmt; |
| 669 | enum v4l2_field field; |
| 670 | unsigned int maxw, maxh; |
| 671 | |
| 672 | if (format.fourcc != f->fmt.pix.pixelformat) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 673 | dprintk(dev, 1, "Fourcc format (0x%08x) invalid. " |
| 674 | "Driver accepts only 0x%08x\n", |
| 675 | f->fmt.pix.pixelformat, format.fourcc); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 676 | return -EINVAL; |
| 677 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 678 | fmt = &format; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 679 | |
| 680 | field = f->fmt.pix.field; |
| 681 | |
| 682 | if (field == V4L2_FIELD_ANY) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 683 | field = V4L2_FIELD_INTERLACED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 684 | } else if (V4L2_FIELD_INTERLACED != field) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 685 | dprintk(dev, 1, "Field type invalid.\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 686 | return -EINVAL; |
| 687 | } |
| 688 | |
| 689 | maxw = norm_maxw(); |
| 690 | maxh = norm_maxh(); |
| 691 | |
| 692 | f->fmt.pix.field = field; |
| 693 | if (f->fmt.pix.height < 32) |
| 694 | f->fmt.pix.height = 32; |
| 695 | if (f->fmt.pix.height > maxh) |
| 696 | f->fmt.pix.height = maxh; |
| 697 | if (f->fmt.pix.width < 48) |
| 698 | f->fmt.pix.width = 48; |
| 699 | if (f->fmt.pix.width > maxw) |
| 700 | f->fmt.pix.width = maxw; |
| 701 | f->fmt.pix.width &= ~0x03; |
| 702 | f->fmt.pix.bytesperline = |
| 703 | (f->fmt.pix.width * fmt->depth) >> 3; |
| 704 | f->fmt.pix.sizeimage = |
| 705 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 706 | |
| 707 | return 0; |
| 708 | } |
| 709 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 710 | /*FIXME: This seems to be generic enough to be at videodev2 */ |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 711 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 712 | struct v4l2_format *f) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 713 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 714 | struct vivi_fh *fh = priv; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 715 | struct videobuf_queue *q = &fh->vb_vidq; |
| 716 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 717 | int ret = vidioc_try_fmt_vid_cap(file, fh, f); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 718 | if (ret < 0) |
| 719 | return (ret); |
| 720 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 721 | mutex_lock(&q->vb_lock); |
| 722 | |
| 723 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 724 | dprintk(fh->dev, 1, "%s queue busy\n", __func__); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 725 | ret = -EBUSY; |
| 726 | goto out; |
| 727 | } |
| 728 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 729 | fh->fmt = &format; |
| 730 | fh->width = f->fmt.pix.width; |
| 731 | fh->height = f->fmt.pix.height; |
| 732 | fh->vb_vidq.field = f->fmt.pix.field; |
| 733 | fh->type = f->type; |
| 734 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 735 | ret = 0; |
| 736 | out: |
| 737 | mutex_unlock(&q->vb_lock); |
| 738 | |
| 739 | return (ret); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 740 | } |
| 741 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 742 | static int vidioc_reqbufs(struct file *file, void *priv, |
| 743 | struct v4l2_requestbuffers *p) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 744 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 745 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 746 | |
| 747 | return (videobuf_reqbufs(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 748 | } |
| 749 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 750 | static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 751 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 752 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 753 | |
| 754 | return (videobuf_querybuf(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 755 | } |
| 756 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 757 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 758 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 759 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 760 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 761 | return (videobuf_qbuf(&fh->vb_vidq, p)); |
| 762 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 763 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 764 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 765 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 766 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 767 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 768 | return (videobuf_dqbuf(&fh->vb_vidq, p, |
| 769 | file->f_flags & O_NONBLOCK)); |
| 770 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 771 | |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 772 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 773 | static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 774 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 775 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 776 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 777 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 778 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 779 | #endif |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 780 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 781 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 782 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 783 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 784 | |
| 785 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 786 | return -EINVAL; |
| 787 | if (i != fh->type) |
| 788 | return -EINVAL; |
| 789 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 790 | return videobuf_streamon(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 791 | } |
| 792 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 793 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 794 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 795 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 796 | |
| 797 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 798 | return -EINVAL; |
| 799 | if (i != fh->type) |
| 800 | return -EINVAL; |
| 801 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 802 | return videobuf_streamoff(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 803 | } |
| 804 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 805 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 806 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 807 | return 0; |
| 808 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 809 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 810 | /* only one input in this sample driver */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 811 | static int vidioc_enum_input(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 812 | struct v4l2_input *inp) |
| 813 | { |
| 814 | if (inp->index != 0) |
| 815 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 816 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 817 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 818 | inp->std = V4L2_STD_525_60; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 819 | strcpy(inp->name, "Camera"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 820 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 821 | return (0); |
| 822 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 823 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 824 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 825 | { |
| 826 | *i = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 827 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 828 | return (0); |
| 829 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 830 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 831 | { |
| 832 | if (i > 0) |
| 833 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 834 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 835 | return (0); |
| 836 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 837 | |
| 838 | /* --- controls ---------------------------------------------- */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 839 | static int vidioc_queryctrl(struct file *file, void *priv, |
| 840 | struct v4l2_queryctrl *qc) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 841 | { |
| 842 | int i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 843 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 844 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 845 | if (qc->id && qc->id == vivi_qctrl[i].id) { |
| 846 | memcpy(qc, &(vivi_qctrl[i]), |
| 847 | sizeof(*qc)); |
| 848 | return (0); |
| 849 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 850 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 851 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 852 | } |
| 853 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 854 | static int vidioc_g_ctrl(struct file *file, void *priv, |
| 855 | struct v4l2_control *ctrl) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 856 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 857 | int i; |
| 858 | |
| 859 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 860 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 861 | ctrl->value = qctl_regs[i]; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 862 | return (0); |
| 863 | } |
| 864 | |
| 865 | return -EINVAL; |
| 866 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 867 | static int vidioc_s_ctrl(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 868 | struct v4l2_control *ctrl) |
| 869 | { |
| 870 | int i; |
| 871 | |
| 872 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 873 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 874 | if (ctrl->value < vivi_qctrl[i].minimum |
| 875 | || ctrl->value > vivi_qctrl[i].maximum) { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 876 | return (-ERANGE); |
| 877 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 878 | qctl_regs[i] = ctrl->value; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 879 | return (0); |
| 880 | } |
| 881 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 882 | } |
| 883 | |
| 884 | /* ------------------------------------------------------------------ |
| 885 | File operations for the device |
| 886 | ------------------------------------------------------------------*/ |
| 887 | |
| 888 | #define line_buf_size(norm) (norm_maxw(norm)*(format.depth+7)/8) |
| 889 | |
| 890 | static int vivi_open(struct inode *inode, struct file *file) |
| 891 | { |
| 892 | int minor = iminor(inode); |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 893 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | 63b79cf | 2008-04-26 08:25:18 -0300 | [diff] [blame] | 894 | struct vivi_fh *fh = NULL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 895 | int i; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 896 | int retval = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 897 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 898 | printk(KERN_DEBUG "vivi: open called (minor=%d)\n", minor); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 899 | |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 900 | list_for_each_entry(dev, &vivi_devlist, vivi_devlist) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 901 | if (dev->vfd->minor == minor) |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 902 | goto found; |
| 903 | return -ENODEV; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 904 | |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 905 | found: |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 906 | mutex_lock(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 907 | dev->users++; |
| 908 | |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 909 | if (dev->users > 1) { |
| 910 | dev->users--; |
| 911 | retval = -EBUSY; |
| 912 | goto unlock; |
| 913 | } |
| 914 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 915 | dprintk(dev, 1, "open minor=%d type=%s users=%d\n", minor, |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 916 | v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 917 | |
| 918 | /* allocate + initialize per filehandle data */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 919 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 920 | if (NULL == fh) { |
| 921 | dev->users--; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 922 | retval = -ENOMEM; |
| 923 | goto unlock; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 924 | } |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 925 | unlock: |
| 926 | mutex_unlock(&dev->mutex); |
| 927 | if (retval) |
| 928 | return retval; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 929 | |
| 930 | file->private_data = fh; |
| 931 | fh->dev = dev; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 932 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 933 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 934 | fh->fmt = &format; |
| 935 | fh->width = 640; |
| 936 | fh->height = 480; |
| 937 | |
| 938 | /* Put all controls at a sane state */ |
| 939 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 940 | qctl_regs[i] = vivi_qctrl[i].default_value; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 941 | |
| 942 | /* Resets frame counters */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 943 | dev->h = 0; |
| 944 | dev->m = 0; |
| 945 | dev->s = 0; |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 946 | dev->ms = 0; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 947 | dev->mv_count = 0; |
| 948 | dev->jiffies = jiffies; |
| 949 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 950 | dev->h, dev->m, dev->s, dev->ms); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 951 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 952 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &vivi_video_qops, |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 953 | NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 954 | sizeof(struct vivi_buffer), fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 955 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 956 | vivi_start_thread(fh); |
| 957 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 958 | return 0; |
| 959 | } |
| 960 | |
| 961 | static ssize_t |
| 962 | vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) |
| 963 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 964 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 965 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 966 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
Mauro Carvalho Chehab | acb09af | 2007-07-29 22:56:11 -0300 | [diff] [blame] | 967 | return videobuf_read_stream(&fh->vb_vidq, data, count, ppos, 0, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 968 | file->f_flags & O_NONBLOCK); |
| 969 | } |
| 970 | return 0; |
| 971 | } |
| 972 | |
| 973 | static unsigned int |
| 974 | vivi_poll(struct file *file, struct poll_table_struct *wait) |
| 975 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 976 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 977 | struct vivi_dev *dev = fh->dev; |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 978 | struct videobuf_queue *q = &fh->vb_vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 979 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 980 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 981 | |
| 982 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 983 | return POLLERR; |
| 984 | |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 985 | return videobuf_poll_stream(file, q, wait); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 986 | } |
| 987 | |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 988 | static int vivi_close(struct inode *inode, struct file *file) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 989 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 990 | struct vivi_fh *fh = file->private_data; |
| 991 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 992 | struct vivi_dmaqueue *vidq = &dev->vidq; |
| 993 | |
| 994 | int minor = iminor(inode); |
| 995 | |
| 996 | vivi_stop_thread(vidq); |
Brandon Philips | 053fcb6 | 2007-11-13 20:11:26 -0300 | [diff] [blame] | 997 | videobuf_stop(&fh->vb_vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 998 | videobuf_mmap_free(&fh->vb_vidq); |
| 999 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1000 | kfree(fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1001 | |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1002 | mutex_lock(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1003 | dev->users--; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1004 | mutex_unlock(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1005 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1006 | dprintk(dev, 1, "close called (minor=%d, users=%d)\n", |
| 1007 | minor, dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1008 | |
| 1009 | return 0; |
| 1010 | } |
| 1011 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1012 | static int vivi_release(void) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1013 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1014 | struct vivi_dev *dev; |
| 1015 | struct list_head *list; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1016 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1017 | while (!list_empty(&vivi_devlist)) { |
| 1018 | list = vivi_devlist.next; |
| 1019 | list_del(list); |
| 1020 | dev = list_entry(list, struct vivi_dev, vivi_devlist); |
| 1021 | |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1022 | if (-1 != dev->vfd->minor) { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1023 | video_unregister_device(dev->vfd); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1024 | printk(KERN_INFO "%s: /dev/video%d unregistered.\n", |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 1025 | VIVI_MODULE_NAME, dev->vfd->minor); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1026 | } else { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1027 | video_device_release(dev->vfd); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1028 | printk(KERN_INFO "%s: /dev/video%d released.\n", |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 1029 | VIVI_MODULE_NAME, dev->vfd->minor); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1030 | } |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1031 | |
| 1032 | kfree(dev); |
| 1033 | } |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1034 | |
| 1035 | return 0; |
| 1036 | } |
| 1037 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1038 | static int vivi_mmap(struct file *file, struct vm_area_struct *vma) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1039 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1040 | struct vivi_fh *fh = file->private_data; |
| 1041 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1042 | int ret; |
| 1043 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1044 | dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1045 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1046 | ret = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1047 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1048 | dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1049 | (unsigned long)vma->vm_start, |
| 1050 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, |
| 1051 | ret); |
| 1052 | |
| 1053 | return ret; |
| 1054 | } |
| 1055 | |
Arjan van de Ven | fa027c2 | 2007-02-12 00:55:33 -0800 | [diff] [blame] | 1056 | static const struct file_operations vivi_fops = { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1057 | .owner = THIS_MODULE, |
| 1058 | .open = vivi_open, |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1059 | .release = vivi_close, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1060 | .read = vivi_read, |
| 1061 | .poll = vivi_poll, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1062 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
Mauro Carvalho Chehab | fbde31d | 2008-04-13 14:57:44 -0300 | [diff] [blame] | 1063 | .compat_ioctl = v4l_compat_ioctl32, |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 1064 | .mmap = vivi_mmap, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1065 | .llseek = no_llseek, |
| 1066 | }; |
| 1067 | |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1068 | static struct video_device vivi_template = { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1069 | .name = "vivi", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1070 | .type = VID_TYPE_CAPTURE, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1071 | .fops = &vivi_fops, |
| 1072 | .minor = -1, |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1073 | .release = video_device_release, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1074 | |
| 1075 | .vidioc_querycap = vidioc_querycap, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1076 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1077 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1078 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1079 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1080 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1081 | .vidioc_querybuf = vidioc_querybuf, |
| 1082 | .vidioc_qbuf = vidioc_qbuf, |
| 1083 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1084 | .vidioc_s_std = vidioc_s_std, |
| 1085 | .vidioc_enum_input = vidioc_enum_input, |
| 1086 | .vidioc_g_input = vidioc_g_input, |
| 1087 | .vidioc_s_input = vidioc_s_input, |
| 1088 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1089 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1090 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1091 | .vidioc_streamon = vidioc_streamon, |
| 1092 | .vidioc_streamoff = vidioc_streamoff, |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 1093 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1094 | .vidiocgmbuf = vidiocgmbuf, |
| 1095 | #endif |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 1096 | .tvnorms = V4L2_STD_525_60, |
Mauro Carvalho Chehab | e75f9ce | 2006-11-20 13:19:20 -0300 | [diff] [blame] | 1097 | .current_norm = V4L2_STD_NTSC_M, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1098 | }; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1099 | /* ----------------------------------------------------------------- |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1100 | Initialization and module stuff |
| 1101 | ------------------------------------------------------------------*/ |
| 1102 | |
| 1103 | static int __init vivi_init(void) |
| 1104 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1105 | int ret = -ENOMEM, i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1106 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1107 | struct video_device *vfd; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1108 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1109 | for (i = 0; i < n_devs; i++) { |
| 1110 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| 1111 | if (NULL == dev) |
| 1112 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1113 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1114 | list_add_tail(&dev->vivi_devlist, &vivi_devlist); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1115 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1116 | /* init video dma queues */ |
| 1117 | INIT_LIST_HEAD(&dev->vidq.active); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1118 | init_waitqueue_head(&dev->vidq.wq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1119 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1120 | /* initialize locks */ |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 1121 | spin_lock_init(&dev->slock); |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1122 | mutex_init(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1123 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1124 | vfd = video_device_alloc(); |
| 1125 | if (NULL == vfd) |
| 1126 | break; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1127 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1128 | *vfd = vivi_template; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1129 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1130 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); |
| 1131 | if (ret < 0) |
| 1132 | break; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1133 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1134 | snprintf(vfd->name, sizeof(vfd->name), "%s (%i)", |
| 1135 | vivi_template.name, vfd->minor); |
| 1136 | |
| 1137 | if (video_nr >= 0) |
| 1138 | video_nr++; |
| 1139 | |
| 1140 | dev->vfd = vfd; |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1141 | printk(KERN_INFO "%s: V4L2 device registered as /dev/video%d\n", |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 1142 | VIVI_MODULE_NAME, vfd->minor); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | if (ret < 0) { |
| 1146 | vivi_release(); |
| 1147 | printk(KERN_INFO "Error %d while loading vivi driver\n", ret); |
| 1148 | } else |
| 1149 | printk(KERN_INFO "Video Technology Magazine Virtual Video " |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1150 | "Capture Board ver %u.%u.%u successfully loaded.\n", |
| 1151 | (VIVI_VERSION >> 16) & 0xFF, (VIVI_VERSION >> 8) & 0xFF, |
| 1152 | VIVI_VERSION & 0xFF); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1153 | return ret; |
| 1154 | } |
| 1155 | |
| 1156 | static void __exit vivi_exit(void) |
| 1157 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1158 | vivi_release(); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1159 | } |
| 1160 | |
| 1161 | module_init(vivi_init); |
| 1162 | module_exit(vivi_exit); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1163 | |
| 1164 | MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); |
| 1165 | MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); |
| 1166 | MODULE_LICENSE("Dual BSD/GPL"); |
| 1167 | |
| 1168 | module_param(video_nr, int, 0); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1169 | MODULE_PARM_DESC(video_nr, "video iminor start number"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1170 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1171 | module_param(n_devs, int, 0); |
| 1172 | MODULE_PARM_DESC(n_devs, "number of video devices to create"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1173 | |
Mauro Carvalho Chehab | 8996b3f | 2007-12-13 06:36:22 -0300 | [diff] [blame] | 1174 | module_param_named(debug, vivi_template.debug, int, 0444); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1175 | MODULE_PARM_DESC(debug, "activates debug info"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1176 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1177 | module_param(vid_limit, int, 0644); |
| 1178 | MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); |