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 | |
| 42 | /* Wake up at about 30 fps */ |
| 43 | #define WAKE_NUMERATOR 30 |
| 44 | #define WAKE_DENOMINATOR 1001 |
| 45 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ |
| 46 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 47 | #include "font.h" |
| 48 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 49 | #define VIVI_MAJOR_VERSION 0 |
| 50 | #define VIVI_MINOR_VERSION 4 |
| 51 | #define VIVI_RELEASE 0 |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 52 | #define VIVI_VERSION \ |
| 53 | KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 54 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 55 | /* Declare static vars that will be used as parameters */ |
| 56 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 57 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 58 | static int n_devs = 1; /* Number of virtual devices */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 59 | |
| 60 | /* supported controls */ |
| 61 | static struct v4l2_queryctrl vivi_qctrl[] = { |
| 62 | { |
| 63 | .id = V4L2_CID_AUDIO_VOLUME, |
| 64 | .name = "Volume", |
| 65 | .minimum = 0, |
| 66 | .maximum = 65535, |
| 67 | .step = 65535/100, |
| 68 | .default_value = 65535, |
| 69 | .flags = 0, |
| 70 | .type = V4L2_CTRL_TYPE_INTEGER, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 71 | }, { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 72 | .id = V4L2_CID_BRIGHTNESS, |
| 73 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 74 | .name = "Brightness", |
| 75 | .minimum = 0, |
| 76 | .maximum = 255, |
| 77 | .step = 1, |
| 78 | .default_value = 127, |
| 79 | .flags = 0, |
| 80 | }, { |
| 81 | .id = V4L2_CID_CONTRAST, |
| 82 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 83 | .name = "Contrast", |
| 84 | .minimum = 0, |
| 85 | .maximum = 255, |
| 86 | .step = 0x1, |
| 87 | .default_value = 0x10, |
| 88 | .flags = 0, |
| 89 | }, { |
| 90 | .id = V4L2_CID_SATURATION, |
| 91 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 92 | .name = "Saturation", |
| 93 | .minimum = 0, |
| 94 | .maximum = 255, |
| 95 | .step = 0x1, |
| 96 | .default_value = 127, |
| 97 | .flags = 0, |
| 98 | }, { |
| 99 | .id = V4L2_CID_HUE, |
| 100 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 101 | .name = "Hue", |
| 102 | .minimum = -128, |
| 103 | .maximum = 127, |
| 104 | .step = 0x1, |
| 105 | .default_value = 0, |
| 106 | .flags = 0, |
| 107 | } |
| 108 | }; |
| 109 | |
| 110 | static int qctl_regs[ARRAY_SIZE(vivi_qctrl)]; |
| 111 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 112 | #define dprintk(dev, level, fmt, arg...) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 113 | do { \ |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 114 | if (dev->vfd->debug >= (level)) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 115 | printk(KERN_DEBUG "vivi: " fmt , ## arg); \ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 116 | } while (0) |
| 117 | |
| 118 | /* ------------------------------------------------------------------ |
| 119 | Basic structures |
| 120 | ------------------------------------------------------------------*/ |
| 121 | |
| 122 | struct vivi_fmt { |
| 123 | char *name; |
| 124 | u32 fourcc; /* v4l2 format id */ |
| 125 | int depth; |
| 126 | }; |
| 127 | |
| 128 | static struct vivi_fmt format = { |
| 129 | .name = "4:2:2, packed, YUYV", |
| 130 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 131 | .depth = 16, |
| 132 | }; |
| 133 | |
| 134 | struct sg_to_addr { |
| 135 | int pos; |
| 136 | struct scatterlist *sg; |
| 137 | }; |
| 138 | |
| 139 | /* buffer for one video frame */ |
| 140 | struct vivi_buffer { |
| 141 | /* common v4l buffer stuff -- must be first */ |
| 142 | struct videobuf_buffer vb; |
| 143 | |
| 144 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 145 | }; |
| 146 | |
| 147 | struct vivi_dmaqueue { |
| 148 | struct list_head active; |
| 149 | struct list_head queued; |
| 150 | struct timer_list timeout; |
| 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 | |
Matthias Kaehlcke | 51b5402 | 2007-07-02 10:19:38 -0300 | [diff] [blame] | 165 | struct mutex lock; |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 166 | spinlock_t slock; |
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 | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 176 | int h, m, s, us, jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 177 | char timestr[13]; |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 178 | |
| 179 | int mv_count; /* Controls bars movement */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 180 | }; |
| 181 | |
| 182 | struct vivi_fh { |
| 183 | struct vivi_dev *dev; |
| 184 | |
| 185 | /* video capture */ |
| 186 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 187 | unsigned int width, height; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 188 | struct videobuf_queue vb_vidq; |
| 189 | |
| 190 | enum v4l2_buf_type type; |
| 191 | }; |
| 192 | |
| 193 | /* ------------------------------------------------------------------ |
| 194 | DMA and thread functions |
| 195 | ------------------------------------------------------------------*/ |
| 196 | |
| 197 | /* Bars and Colors should match positions */ |
| 198 | |
| 199 | enum colors { |
| 200 | WHITE, |
| 201 | AMBAR, |
| 202 | CYAN, |
| 203 | GREEN, |
| 204 | MAGENTA, |
| 205 | RED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 206 | BLUE, |
| 207 | BLACK, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 208 | }; |
| 209 | |
| 210 | static u8 bars[8][3] = { |
| 211 | /* R G B */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 212 | {204, 204, 204}, /* white */ |
| 213 | {208, 208, 0}, /* ambar */ |
| 214 | { 0, 206, 206}, /* cyan */ |
| 215 | { 0, 239, 0}, /* green */ |
| 216 | {239, 0, 239}, /* magenta */ |
| 217 | {205, 0, 0}, /* red */ |
| 218 | { 0, 0, 255}, /* blue */ |
| 219 | { 0, 0, 0}, /* black */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 220 | }; |
| 221 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 222 | #define TO_Y(r, g, b) \ |
| 223 | (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 224 | /* RGB to V(Cr) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 225 | #define TO_V(r, g, b) \ |
| 226 | (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 227 | /* RGB to U(Cb) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 228 | #define TO_U(r, g, b) \ |
| 229 | (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 230 | |
| 231 | #define TSTAMP_MIN_Y 24 |
| 232 | #define TSTAMP_MAX_Y TSTAMP_MIN_Y+15 |
| 233 | #define TSTAMP_MIN_X 64 |
| 234 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 235 | static void gen_line(char *basep, int inipos, int wmax, |
| 236 | int hmax, int line, int count, char *timestr) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 237 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 238 | int w, i, j, y; |
| 239 | int pos = inipos; |
| 240 | char *p, *s; |
| 241 | u8 chr, r, g, b, color; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 242 | |
| 243 | /* We will just duplicate the second pixel at the packet */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 244 | wmax /= 2; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 245 | |
| 246 | /* Generate a standard color bar pattern */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 247 | for (w = 0; w < wmax; w++) { |
| 248 | int colorpos = ((w + count) * 8/(wmax + 1)) % 8; |
| 249 | r = bars[colorpos][0]; |
| 250 | g = bars[colorpos][1]; |
| 251 | b = bars[colorpos][2]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 252 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 253 | for (color = 0; color < 4; color++) { |
| 254 | p = basep + pos; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 255 | |
| 256 | switch (color) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 257 | case 0: |
| 258 | case 2: |
| 259 | *p = TO_Y(r, g, b); /* Luma */ |
| 260 | break; |
| 261 | case 1: |
| 262 | *p = TO_U(r, g, b); /* Cb */ |
| 263 | break; |
| 264 | case 3: |
| 265 | *p = TO_V(r, g, b); /* Cr */ |
| 266 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 267 | } |
| 268 | pos++; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | /* Checks if it is possible to show timestamp */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 273 | if (TSTAMP_MAX_Y >= hmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 274 | goto end; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 275 | if (TSTAMP_MIN_X + strlen(timestr) >= wmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 276 | goto end; |
| 277 | |
| 278 | /* Print stream time */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 279 | if (line >= TSTAMP_MIN_Y && line <= TSTAMP_MAX_Y) { |
| 280 | j = TSTAMP_MIN_X; |
| 281 | for (s = timestr; *s; s++) { |
| 282 | chr = rom8x16_bits[(*s-0x30)*16+line-TSTAMP_MIN_Y]; |
| 283 | for (i = 0; i < 7; i++) { |
| 284 | if (chr & 1 << (7 - i)) { |
| 285 | /* Font color*/ |
| 286 | r = 0; |
| 287 | g = 198; |
| 288 | b = 0; |
| 289 | } else { |
| 290 | /* Background color */ |
| 291 | r = bars[BLACK][0]; |
| 292 | g = bars[BLACK][1]; |
| 293 | b = bars[BLACK][2]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 294 | } |
| 295 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 296 | pos = inipos + j * 2; |
| 297 | for (color = 0; color < 4; color++) { |
| 298 | p = basep + pos; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 299 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 300 | y = TO_Y(r, g, b); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 301 | |
| 302 | switch (color) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 303 | case 0: |
| 304 | case 2: |
| 305 | *p = TO_Y(r, g, b); /* Luma */ |
| 306 | break; |
| 307 | case 1: |
| 308 | *p = TO_U(r, g, b); /* Cb */ |
| 309 | break; |
| 310 | case 3: |
| 311 | *p = TO_V(r, g, b); /* Cr */ |
| 312 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 313 | } |
| 314 | pos++; |
| 315 | } |
| 316 | j++; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 321 | end: |
Mauro Carvalho Chehab | b50e7fe | 2007-01-25 05:00:01 -0300 | [diff] [blame] | 322 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 323 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 324 | 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] | 325 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 326 | int h , pos = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 327 | int hmax = buf->vb.height; |
| 328 | int wmax = buf->vb.width; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 329 | struct timeval ts; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 330 | char *tmpbuf = kmalloc(wmax * 2, GFP_KERNEL); |
| 331 | void *vbuf = videobuf_to_vmalloc(&buf->vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 332 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 333 | if (!tmpbuf) |
| 334 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 335 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 336 | for (h = 0; h < hmax; h++) { |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 337 | gen_line(tmpbuf, 0, wmax, hmax, h, dev->mv_count, |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 338 | dev->timestr); |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 339 | /* FIXME: replacing to __copy_to_user */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 340 | if (copy_to_user(vbuf + pos, tmpbuf, wmax * 2) != 0) |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 341 | dprintk(dev, 2, "vivifill copy_to_user failed.\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 342 | pos += wmax*2; |
| 343 | } |
| 344 | |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 345 | dev->mv_count++; |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 346 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 347 | kfree(tmpbuf); |
| 348 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 349 | /* Updates stream time */ |
| 350 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 351 | dev->us += jiffies_to_usecs(jiffies-dev->jiffies); |
| 352 | dev->jiffies = jiffies; |
| 353 | if (dev->us >= 1000000) { |
| 354 | dev->us -= 1000000; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 355 | dev->s++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 356 | if (dev->s >= 60) { |
| 357 | dev->s -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 358 | dev->m++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 359 | if (dev->m > 60) { |
| 360 | dev->m -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 361 | dev->h++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 362 | if (dev->h > 24) |
| 363 | dev->h -= 24; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 364 | } |
| 365 | } |
| 366 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 367 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
| 368 | dev->h, dev->m, dev->s, (dev->us + 500) / 1000); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 369 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 370 | dprintk(dev, 2, "vivifill at %s: Buffer 0x%08lx size= %d\n", |
| 371 | dev->timestr, (unsigned long)tmpbuf, pos); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 372 | |
| 373 | /* Advice that buffer was filled */ |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 374 | buf->vb.state = VIDEOBUF_DONE; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 375 | buf->vb.field_count++; |
| 376 | do_gettimeofday(&ts); |
| 377 | buf->vb.ts = ts; |
| 378 | |
| 379 | list_del(&buf->vb.queue); |
| 380 | wake_up(&buf->vb.done); |
| 381 | } |
| 382 | |
| 383 | static int restart_video_queue(struct vivi_dmaqueue *dma_q); |
| 384 | |
| 385 | static void vivi_thread_tick(struct vivi_dmaqueue *dma_q) |
| 386 | { |
| 387 | struct vivi_buffer *buf; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 388 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 389 | |
| 390 | int bc; |
| 391 | |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 392 | spin_lock(&dev->slock); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 393 | /* Announces videobuf that all went ok */ |
| 394 | for (bc = 0;; bc++) { |
| 395 | if (list_empty(&dma_q->active)) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 396 | dprintk(dev, 1, "No active queue to serve\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 397 | break; |
| 398 | } |
| 399 | |
| 400 | buf = list_entry(dma_q->active.next, |
| 401 | struct vivi_buffer, vb.queue); |
| 402 | |
| 403 | /* Nobody is waiting something to be done, just return */ |
| 404 | if (!waitqueue_active(&buf->vb.done)) { |
| 405 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 406 | spin_unlock(&dev->slock); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 407 | return; |
| 408 | } |
| 409 | |
| 410 | do_gettimeofday(&buf->vb.ts); |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 411 | dprintk(dev, 2, "[%p/%d] wakeup\n", buf, buf->vb. i); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 412 | |
| 413 | /* Fill buffer */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 414 | vivi_fillbuff(dev, buf); |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 415 | |
| 416 | if (list_empty(&dma_q->active)) { |
| 417 | del_timer(&dma_q->timeout); |
| 418 | } else { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 419 | mod_timer(&dma_q->timeout, jiffies + BUFFER_TIMEOUT); |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 420 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 421 | } |
| 422 | if (bc != 1) |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 423 | dprintk(dev, 1, "%s: %d buffers handled (should be 1)\n", |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 424 | __FUNCTION__, bc); |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 425 | spin_unlock(&dev->slock); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 426 | } |
| 427 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 428 | static void vivi_sleep(struct vivi_dmaqueue *dma_q) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 429 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 430 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 431 | int timeout; |
| 432 | DECLARE_WAITQUEUE(wait, current); |
| 433 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 434 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __FUNCTION__, |
| 435 | (unsigned long)dma_q); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 436 | |
| 437 | add_wait_queue(&dma_q->wq, &wait); |
| 438 | if (!kthread_should_stop()) { |
| 439 | dma_q->frame++; |
| 440 | |
| 441 | /* Calculate time to wake up */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 442 | timeout = dma_q->ini_jiffies+ |
| 443 | msecs_to_jiffies((dma_q->frame*WAKE_NUMERATOR * 1000) |
| 444 | / WAKE_DENOMINATOR) - jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 445 | |
| 446 | if (timeout <= 0) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 447 | int old = dma_q->frame; |
| 448 | dma_q->frame = (jiffies_to_msecs(jiffies - |
| 449 | dma_q->ini_jiffies) * |
| 450 | WAKE_DENOMINATOR) / |
| 451 | (WAKE_NUMERATOR * 1000) + 1; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 452 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 453 | timeout = dma_q->ini_jiffies+ |
| 454 | msecs_to_jiffies((dma_q->frame * |
| 455 | WAKE_NUMERATOR * 1000) |
| 456 | / WAKE_DENOMINATOR) - jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 457 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 458 | dprintk(dev, 1, "underrun, losed %d frames. " |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 459 | "Now, frame is %d. Waking on %d jiffies\n", |
| 460 | dma_q->frame-old, dma_q->frame, timeout); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 461 | } else |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 462 | dprintk(dev, 1, "will sleep for %i jiffies\n", |
| 463 | timeout); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 464 | |
| 465 | vivi_thread_tick(dma_q); |
| 466 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 467 | schedule_timeout_interruptible(timeout); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | remove_wait_queue(&dma_q->wq, &wait); |
| 471 | try_to_freeze(); |
| 472 | } |
| 473 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 474 | static int vivi_thread(void *data) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 475 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 476 | struct vivi_dmaqueue *dma_q = data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 477 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 478 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 479 | dprintk(dev, 1, "thread started\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 480 | |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 481 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 482 | set_freezable(); |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 483 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 484 | for (;;) { |
| 485 | vivi_sleep(dma_q); |
| 486 | |
| 487 | if (kthread_should_stop()) |
| 488 | break; |
| 489 | } |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 490 | dprintk(dev, 1, "thread: exit\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 491 | return 0; |
| 492 | } |
| 493 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 494 | static int vivi_start_thread(struct vivi_dmaqueue *dma_q) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 495 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 496 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
| 497 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 498 | dma_q->frame = 0; |
| 499 | dma_q->ini_jiffies = jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 500 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 501 | dprintk(dev, 1, "%s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 502 | |
| 503 | dma_q->kthread = kthread_run(vivi_thread, dma_q, "vivi"); |
| 504 | |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 505 | if (IS_ERR(dma_q->kthread)) { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 506 | printk(KERN_ERR "vivi: kernel_thread() failed\n"); |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 507 | return PTR_ERR(dma_q->kthread); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 508 | } |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 509 | /* Wakes thread */ |
| 510 | wake_up_interruptible(&dma_q->wq); |
| 511 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 512 | dprintk(dev, 1, "returning from %s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 513 | return 0; |
| 514 | } |
| 515 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 516 | static void vivi_stop_thread(struct vivi_dmaqueue *dma_q) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 517 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 518 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
| 519 | |
| 520 | dprintk(dev, 1, "%s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 521 | /* shutdown control thread */ |
| 522 | if (dma_q->kthread) { |
| 523 | kthread_stop(dma_q->kthread); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 524 | dma_q->kthread = NULL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 525 | } |
| 526 | } |
| 527 | |
| 528 | static int restart_video_queue(struct vivi_dmaqueue *dma_q) |
| 529 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 530 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 531 | struct vivi_buffer *buf, *prev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 532 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 533 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __FUNCTION__, |
| 534 | (unsigned long)dma_q); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 535 | |
| 536 | if (!list_empty(&dma_q->active)) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 537 | buf = list_entry(dma_q->active.next, |
| 538 | struct vivi_buffer, vb.queue); |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 539 | dprintk(dev, 2, "restart_queue [%p/%d]: restart dma\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 540 | buf, buf->vb.i); |
| 541 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 542 | dprintk(dev, 1, "Restarting video dma\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 543 | vivi_stop_thread(dma_q); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 544 | |
| 545 | /* cancel all outstanding capture / vbi requests */ |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 546 | list_for_each_entry_safe(buf, prev, &dma_q->active, vb.queue) { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 547 | list_del(&buf->vb.queue); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 548 | buf->vb.state = VIDEOBUF_ERROR; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 549 | wake_up(&buf->vb.done); |
| 550 | } |
| 551 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 552 | |
| 553 | return 0; |
| 554 | } |
| 555 | |
| 556 | prev = NULL; |
| 557 | for (;;) { |
| 558 | if (list_empty(&dma_q->queued)) |
| 559 | return 0; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 560 | buf = list_entry(dma_q->queued.next, |
| 561 | struct vivi_buffer, vb.queue); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 562 | if (NULL == prev) { |
| 563 | list_del(&buf->vb.queue); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 564 | list_add_tail(&buf->vb.queue, &dma_q->active); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 565 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 566 | dprintk(dev, 1, "Restarting video dma\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 567 | vivi_stop_thread(dma_q); |
| 568 | vivi_start_thread(dma_q); |
| 569 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 570 | buf->vb.state = VIDEOBUF_ACTIVE; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 571 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 572 | dprintk(dev, 2, |
| 573 | "[%p/%d] restart_queue - first active\n", |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 574 | buf, buf->vb.i); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 575 | |
| 576 | } else if (prev->vb.width == buf->vb.width && |
| 577 | prev->vb.height == buf->vb.height && |
| 578 | prev->fmt == buf->fmt) { |
| 579 | list_del(&buf->vb.queue); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 580 | list_add_tail(&buf->vb.queue, &dma_q->active); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 581 | buf->vb.state = VIDEOBUF_ACTIVE; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 582 | dprintk(dev, 2, |
| 583 | "[%p/%d] restart_queue - move to active\n", |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 584 | buf, buf->vb.i); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 585 | } else { |
| 586 | return 0; |
| 587 | } |
| 588 | prev = buf; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | static void vivi_vid_timeout(unsigned long data) |
| 593 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 594 | struct vivi_dev *dev = (struct vivi_dev *)data; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 595 | struct vivi_dmaqueue *vidq = &dev->vidq; |
| 596 | struct vivi_buffer *buf; |
| 597 | |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 598 | spin_lock(&dev->slock); |
| 599 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 600 | while (!list_empty(&vidq->active)) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 601 | buf = list_entry(vidq->active.next, |
| 602 | struct vivi_buffer, vb.queue); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 603 | list_del(&buf->vb.queue); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 604 | buf->vb.state = VIDEOBUF_ERROR; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 605 | wake_up(&buf->vb.done); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 606 | printk(KERN_INFO "vivi/0: [%p/%d] timeout\n", buf, buf->vb.i); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 607 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 608 | restart_video_queue(vidq); |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 609 | |
| 610 | spin_unlock(&dev->slock); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 611 | } |
| 612 | |
| 613 | /* ------------------------------------------------------------------ |
| 614 | Videobuf operations |
| 615 | ------------------------------------------------------------------*/ |
| 616 | static int |
| 617 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) |
| 618 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 619 | struct vivi_fh *fh = vq->priv_data; |
| 620 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 621 | |
| 622 | *size = fh->width*fh->height*2; |
| 623 | |
| 624 | if (0 == *count) |
| 625 | *count = 32; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 626 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 627 | while (*size * *count > vid_limit * 1024 * 1024) |
| 628 | (*count)--; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 629 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 630 | dprintk(dev, 1, "%s, count=%d, size=%d\n", __FUNCTION__, |
| 631 | *count, *size); |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 632 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 633 | return 0; |
| 634 | } |
| 635 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 636 | 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] | 637 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 638 | struct vivi_fh *fh = vq->priv_data; |
| 639 | struct vivi_dev *dev = fh->dev; |
| 640 | |
| 641 | dprintk(dev, 1, "%s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 642 | |
| 643 | if (in_interrupt()) |
| 644 | BUG(); |
| 645 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 646 | videobuf_waiton(&buf->vb, 0, 0); |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 647 | videobuf_vmalloc_free(&buf->vb); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 648 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | #define norm_maxw() 1024 |
| 652 | #define norm_maxh() 768 |
| 653 | static int |
| 654 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 655 | enum v4l2_field field) |
| 656 | { |
| 657 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 658 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 659 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 660 | int rc, init_buffer = 0; |
| 661 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 662 | dprintk(dev, 1, "%s, field=%d\n", __FUNCTION__, field); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 663 | |
| 664 | BUG_ON(NULL == fh->fmt); |
| 665 | if (fh->width < 48 || fh->width > norm_maxw() || |
| 666 | fh->height < 32 || fh->height > norm_maxh()) |
| 667 | return -EINVAL; |
| 668 | buf->vb.size = fh->width*fh->height*2; |
| 669 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 670 | return -EINVAL; |
| 671 | |
| 672 | if (buf->fmt != fh->fmt || |
| 673 | buf->vb.width != fh->width || |
| 674 | buf->vb.height != fh->height || |
| 675 | buf->vb.field != field) { |
| 676 | buf->fmt = fh->fmt; |
| 677 | buf->vb.width = fh->width; |
| 678 | buf->vb.height = fh->height; |
| 679 | buf->vb.field = field; |
| 680 | init_buffer = 1; |
| 681 | } |
| 682 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 683 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 684 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
| 685 | if (rc < 0) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 686 | goto fail; |
| 687 | } |
| 688 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 689 | buf->vb.state = VIDEOBUF_PREPARED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 690 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 691 | return 0; |
| 692 | |
| 693 | fail: |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 694 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 695 | return rc; |
| 696 | } |
| 697 | |
| 698 | static void |
| 699 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 700 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 701 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
| 702 | struct vivi_fh *fh = vq->priv_data; |
| 703 | struct vivi_dev *dev = fh->dev; |
| 704 | struct vivi_dmaqueue *vidq = &dev->vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 705 | struct vivi_buffer *prev; |
| 706 | |
| 707 | if (!list_empty(&vidq->queued)) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 708 | dprintk(dev, 1, "adding vb queue=0x%08lx\n", |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 709 | (unsigned long)&buf->vb.queue); |
| 710 | list_add_tail(&buf->vb.queue, &vidq->queued); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 711 | buf->vb.state = VIDEOBUF_QUEUED; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 712 | dprintk(dev, 2, "[%p/%d] buffer_queue - append to queued\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 713 | buf, buf->vb.i); |
| 714 | } else if (list_empty(&vidq->active)) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 715 | list_add_tail(&buf->vb.queue, &vidq->active); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 716 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 717 | buf->vb.state = VIDEOBUF_ACTIVE; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 718 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 719 | dprintk(dev, 2, "[%p/%d] buffer_queue - first active\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 720 | buf, buf->vb.i); |
| 721 | |
| 722 | vivi_start_thread(vidq); |
| 723 | } else { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 724 | prev = list_entry(vidq->active.prev, |
| 725 | struct vivi_buffer, vb.queue); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 726 | if (prev->vb.width == buf->vb.width && |
| 727 | prev->vb.height == buf->vb.height && |
| 728 | prev->fmt == buf->fmt) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 729 | list_add_tail(&buf->vb.queue, &vidq->active); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 730 | buf->vb.state = VIDEOBUF_ACTIVE; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 731 | dprintk(dev, 2, |
| 732 | "[%p/%d] buffer_queue - append to active\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 733 | buf, buf->vb.i); |
| 734 | |
| 735 | } else { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 736 | list_add_tail(&buf->vb.queue, &vidq->queued); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 737 | buf->vb.state = VIDEOBUF_QUEUED; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 738 | dprintk(dev, 2, |
| 739 | "[%p/%d] buffer_queue - first queued\n", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 740 | buf, buf->vb.i); |
| 741 | } |
| 742 | } |
| 743 | } |
| 744 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 745 | static void buffer_release(struct videobuf_queue *vq, |
| 746 | struct videobuf_buffer *vb) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 747 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 748 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 749 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 750 | struct vivi_dev *dev = (struct vivi_dev *)fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 751 | struct vivi_dmaqueue *vidq = &dev->vidq; |
| 752 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 753 | dprintk(dev, 1, "%s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 754 | |
| 755 | vivi_stop_thread(vidq); |
| 756 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 757 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 758 | } |
| 759 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 760 | static struct videobuf_queue_ops vivi_video_qops = { |
| 761 | .buf_setup = buffer_setup, |
| 762 | .buf_prepare = buffer_prepare, |
| 763 | .buf_queue = buffer_queue, |
| 764 | .buf_release = buffer_release, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 765 | }; |
| 766 | |
| 767 | /* ------------------------------------------------------------------ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 768 | IOCTL vidioc handling |
| 769 | ------------------------------------------------------------------*/ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 770 | static int vidioc_querycap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 771 | struct v4l2_capability *cap) |
| 772 | { |
| 773 | strcpy(cap->driver, "vivi"); |
| 774 | strcpy(cap->card, "vivi"); |
| 775 | cap->version = VIVI_VERSION; |
| 776 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 777 | V4L2_CAP_STREAMING | |
| 778 | V4L2_CAP_READWRITE; |
| 779 | return 0; |
| 780 | } |
| 781 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 782 | static int vidioc_enum_fmt_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 783 | struct v4l2_fmtdesc *f) |
| 784 | { |
| 785 | if (f->index > 0) |
| 786 | return -EINVAL; |
| 787 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 788 | strlcpy(f->description, format.name, sizeof(f->description)); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 789 | f->pixelformat = format.fourcc; |
| 790 | return 0; |
| 791 | } |
| 792 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 793 | static int vidioc_g_fmt_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 794 | struct v4l2_format *f) |
| 795 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 796 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 797 | |
| 798 | f->fmt.pix.width = fh->width; |
| 799 | f->fmt.pix.height = fh->height; |
| 800 | f->fmt.pix.field = fh->vb_vidq.field; |
| 801 | f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| 802 | f->fmt.pix.bytesperline = |
| 803 | (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| 804 | f->fmt.pix.sizeimage = |
| 805 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 806 | |
| 807 | return (0); |
| 808 | } |
| 809 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 810 | static int vidioc_try_fmt_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 811 | struct v4l2_format *f) |
| 812 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 813 | struct vivi_fh *fh = priv; |
| 814 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 815 | struct vivi_fmt *fmt; |
| 816 | enum v4l2_field field; |
| 817 | unsigned int maxw, maxh; |
| 818 | |
| 819 | if (format.fourcc != f->fmt.pix.pixelformat) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 820 | dprintk(dev, 1, "Fourcc format (0x%08x) invalid. " |
| 821 | "Driver accepts only 0x%08x\n", |
| 822 | f->fmt.pix.pixelformat, format.fourcc); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 823 | return -EINVAL; |
| 824 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 825 | fmt = &format; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 826 | |
| 827 | field = f->fmt.pix.field; |
| 828 | |
| 829 | if (field == V4L2_FIELD_ANY) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 830 | field = V4L2_FIELD_INTERLACED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 831 | } else if (V4L2_FIELD_INTERLACED != field) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 832 | dprintk(dev, 1, "Field type invalid.\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 833 | return -EINVAL; |
| 834 | } |
| 835 | |
| 836 | maxw = norm_maxw(); |
| 837 | maxh = norm_maxh(); |
| 838 | |
| 839 | f->fmt.pix.field = field; |
| 840 | if (f->fmt.pix.height < 32) |
| 841 | f->fmt.pix.height = 32; |
| 842 | if (f->fmt.pix.height > maxh) |
| 843 | f->fmt.pix.height = maxh; |
| 844 | if (f->fmt.pix.width < 48) |
| 845 | f->fmt.pix.width = 48; |
| 846 | if (f->fmt.pix.width > maxw) |
| 847 | f->fmt.pix.width = maxw; |
| 848 | f->fmt.pix.width &= ~0x03; |
| 849 | f->fmt.pix.bytesperline = |
| 850 | (f->fmt.pix.width * fmt->depth) >> 3; |
| 851 | f->fmt.pix.sizeimage = |
| 852 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 853 | |
| 854 | return 0; |
| 855 | } |
| 856 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 857 | /*FIXME: This seems to be generic enough to be at videodev2 */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 858 | static int vidioc_s_fmt_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 859 | struct v4l2_format *f) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 860 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 861 | struct vivi_fh *fh = priv; |
| 862 | int ret = vidioc_try_fmt_cap(file, fh, f); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 863 | if (ret < 0) |
| 864 | return (ret); |
| 865 | |
| 866 | fh->fmt = &format; |
| 867 | fh->width = f->fmt.pix.width; |
| 868 | fh->height = f->fmt.pix.height; |
| 869 | fh->vb_vidq.field = f->fmt.pix.field; |
| 870 | fh->type = f->type; |
| 871 | |
| 872 | return (0); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 873 | } |
| 874 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 875 | static int vidioc_reqbufs(struct file *file, void *priv, |
| 876 | struct v4l2_requestbuffers *p) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 877 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 878 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 879 | |
| 880 | return (videobuf_reqbufs(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 881 | } |
| 882 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 883 | 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] | 884 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 885 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 886 | |
| 887 | return (videobuf_querybuf(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 888 | } |
| 889 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 890 | 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] | 891 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 892 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 893 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 894 | return (videobuf_qbuf(&fh->vb_vidq, p)); |
| 895 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 896 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 897 | 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] | 898 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 899 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 900 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 901 | return (videobuf_dqbuf(&fh->vb_vidq, p, |
| 902 | file->f_flags & O_NONBLOCK)); |
| 903 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 904 | |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 905 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 906 | 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] | 907 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 908 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 909 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 910 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 911 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 912 | #endif |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 913 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 914 | 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] | 915 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 916 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 917 | |
| 918 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 919 | return -EINVAL; |
| 920 | if (i != fh->type) |
| 921 | return -EINVAL; |
| 922 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 923 | return videobuf_streamon(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 924 | } |
| 925 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 926 | 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] | 927 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 928 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 929 | |
| 930 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 931 | return -EINVAL; |
| 932 | if (i != fh->type) |
| 933 | return -EINVAL; |
| 934 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 935 | return videobuf_streamoff(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 936 | } |
| 937 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 938 | 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] | 939 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 940 | return 0; |
| 941 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 942 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 943 | /* only one input in this sample driver */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 944 | static int vidioc_enum_input(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 945 | struct v4l2_input *inp) |
| 946 | { |
| 947 | if (inp->index != 0) |
| 948 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 949 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 950 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 951 | inp->std = V4L2_STD_525_60; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 952 | strcpy(inp->name, "Camera"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 953 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 954 | return (0); |
| 955 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 956 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 957 | 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] | 958 | { |
| 959 | *i = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 960 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 961 | return (0); |
| 962 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 963 | 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] | 964 | { |
| 965 | if (i > 0) |
| 966 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 967 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 968 | return (0); |
| 969 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 970 | |
| 971 | /* --- controls ---------------------------------------------- */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 972 | static int vidioc_queryctrl(struct file *file, void *priv, |
| 973 | struct v4l2_queryctrl *qc) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 974 | { |
| 975 | int i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 976 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 977 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 978 | if (qc->id && qc->id == vivi_qctrl[i].id) { |
| 979 | memcpy(qc, &(vivi_qctrl[i]), |
| 980 | sizeof(*qc)); |
| 981 | return (0); |
| 982 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 983 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 984 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 985 | } |
| 986 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 987 | static int vidioc_g_ctrl(struct file *file, void *priv, |
| 988 | struct v4l2_control *ctrl) |
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 | int i; |
| 991 | |
| 992 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 993 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 994 | ctrl->value = qctl_regs[i]; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 995 | return (0); |
| 996 | } |
| 997 | |
| 998 | return -EINVAL; |
| 999 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1000 | static int vidioc_s_ctrl(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1001 | struct v4l2_control *ctrl) |
| 1002 | { |
| 1003 | int i; |
| 1004 | |
| 1005 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 1006 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1007 | if (ctrl->value < vivi_qctrl[i].minimum |
| 1008 | || ctrl->value > vivi_qctrl[i].maximum) { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1009 | return (-ERANGE); |
| 1010 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1011 | qctl_regs[i] = ctrl->value; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1012 | return (0); |
| 1013 | } |
| 1014 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | /* ------------------------------------------------------------------ |
| 1018 | File operations for the device |
| 1019 | ------------------------------------------------------------------*/ |
| 1020 | |
| 1021 | #define line_buf_size(norm) (norm_maxw(norm)*(format.depth+7)/8) |
| 1022 | |
| 1023 | static int vivi_open(struct inode *inode, struct file *file) |
| 1024 | { |
| 1025 | int minor = iminor(inode); |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 1026 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1027 | struct vivi_fh *fh; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1028 | int i; |
| 1029 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1030 | printk(KERN_DEBUG "vivi: open called (minor=%d)\n", minor); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1031 | |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 1032 | list_for_each_entry(dev, &vivi_devlist, vivi_devlist) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1033 | if (dev->vfd->minor == minor) |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 1034 | goto found; |
| 1035 | return -ENODEV; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1036 | |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 1037 | found: |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1038 | /* If more than one user, mutex should be added */ |
| 1039 | dev->users++; |
| 1040 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1041 | dprintk(dev, 1, "open minor=%d type=%s users=%d\n", minor, |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 1042 | v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1043 | |
| 1044 | /* allocate + initialize per filehandle data */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1045 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1046 | if (NULL == fh) { |
| 1047 | dev->users--; |
| 1048 | return -ENOMEM; |
| 1049 | } |
| 1050 | |
| 1051 | file->private_data = fh; |
| 1052 | fh->dev = dev; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1053 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1054 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1055 | fh->fmt = &format; |
| 1056 | fh->width = 640; |
| 1057 | fh->height = 480; |
| 1058 | |
| 1059 | /* Put all controls at a sane state */ |
| 1060 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1061 | qctl_regs[i] = vivi_qctrl[i].default_value; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1062 | |
| 1063 | /* Resets frame counters */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1064 | dev->h = 0; |
| 1065 | dev->m = 0; |
| 1066 | dev->s = 0; |
| 1067 | dev->us = 0; |
| 1068 | dev->mv_count = 0; |
| 1069 | dev->jiffies = jiffies; |
| 1070 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
| 1071 | dev->h, dev->m, dev->s, (dev->us + 500) / 1000); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1072 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 1073 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &vivi_video_qops, |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 1074 | NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1075 | sizeof(struct vivi_buffer), fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1076 | |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
| 1080 | static ssize_t |
| 1081 | vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) |
| 1082 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1083 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1084 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1085 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
Mauro Carvalho Chehab | acb09af | 2007-07-29 22:56:11 -0300 | [diff] [blame] | 1086 | return videobuf_read_stream(&fh->vb_vidq, data, count, ppos, 0, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1087 | file->f_flags & O_NONBLOCK); |
| 1088 | } |
| 1089 | return 0; |
| 1090 | } |
| 1091 | |
| 1092 | static unsigned int |
| 1093 | vivi_poll(struct file *file, struct poll_table_struct *wait) |
| 1094 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1095 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1096 | struct vivi_dev *dev = fh->dev; |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 1097 | struct videobuf_queue *q = &fh->vb_vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1098 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1099 | dprintk(dev, 1, "%s\n", __FUNCTION__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1100 | |
| 1101 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 1102 | return POLLERR; |
| 1103 | |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 1104 | return videobuf_poll_stream(file, q, wait); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1105 | } |
| 1106 | |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1107 | static int vivi_close(struct inode *inode, struct file *file) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1108 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1109 | struct vivi_fh *fh = file->private_data; |
| 1110 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1111 | struct vivi_dmaqueue *vidq = &dev->vidq; |
| 1112 | |
| 1113 | int minor = iminor(inode); |
| 1114 | |
| 1115 | vivi_stop_thread(vidq); |
Brandon Philips | 053fcb6 | 2007-11-13 20:11:26 -0300 | [diff] [blame] | 1116 | videobuf_stop(&fh->vb_vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1117 | videobuf_mmap_free(&fh->vb_vidq); |
| 1118 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1119 | kfree(fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1120 | |
| 1121 | dev->users--; |
| 1122 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1123 | dprintk(dev, 1, "close called (minor=%d, users=%d)\n", |
| 1124 | minor, dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1125 | |
| 1126 | return 0; |
| 1127 | } |
| 1128 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1129 | static int vivi_release(void) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1130 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1131 | struct vivi_dev *dev; |
| 1132 | struct list_head *list; |
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 | while (!list_empty(&vivi_devlist)) { |
| 1135 | list = vivi_devlist.next; |
| 1136 | list_del(list); |
| 1137 | dev = list_entry(list, struct vivi_dev, vivi_devlist); |
| 1138 | |
| 1139 | if (-1 != dev->vfd->minor) |
| 1140 | video_unregister_device(dev->vfd); |
| 1141 | else |
| 1142 | video_device_release(dev->vfd); |
| 1143 | |
| 1144 | kfree(dev); |
| 1145 | } |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1146 | |
| 1147 | return 0; |
| 1148 | } |
| 1149 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1150 | 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] | 1151 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1152 | struct vivi_fh *fh = file->private_data; |
| 1153 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1154 | int ret; |
| 1155 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1156 | 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] | 1157 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1158 | ret = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1159 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1160 | 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] | 1161 | (unsigned long)vma->vm_start, |
| 1162 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, |
| 1163 | ret); |
| 1164 | |
| 1165 | return ret; |
| 1166 | } |
| 1167 | |
Arjan van de Ven | fa027c2 | 2007-02-12 00:55:33 -0800 | [diff] [blame] | 1168 | static const struct file_operations vivi_fops = { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1169 | .owner = THIS_MODULE, |
| 1170 | .open = vivi_open, |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1171 | .release = vivi_close, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1172 | .read = vivi_read, |
| 1173 | .poll = vivi_poll, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1174 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 1175 | .mmap = vivi_mmap, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1176 | .llseek = no_llseek, |
| 1177 | }; |
| 1178 | |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1179 | static struct video_device vivi_template = { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1180 | .name = "vivi", |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1181 | .type = VID_TYPE_CAPTURE, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1182 | .fops = &vivi_fops, |
| 1183 | .minor = -1, |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1184 | .release = video_device_release, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1185 | |
| 1186 | .vidioc_querycap = vidioc_querycap, |
| 1187 | .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, |
| 1188 | .vidioc_g_fmt_cap = vidioc_g_fmt_cap, |
| 1189 | .vidioc_try_fmt_cap = vidioc_try_fmt_cap, |
| 1190 | .vidioc_s_fmt_cap = vidioc_s_fmt_cap, |
| 1191 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1192 | .vidioc_querybuf = vidioc_querybuf, |
| 1193 | .vidioc_qbuf = vidioc_qbuf, |
| 1194 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1195 | .vidioc_s_std = vidioc_s_std, |
| 1196 | .vidioc_enum_input = vidioc_enum_input, |
| 1197 | .vidioc_g_input = vidioc_g_input, |
| 1198 | .vidioc_s_input = vidioc_s_input, |
| 1199 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1200 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1201 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1202 | .vidioc_streamon = vidioc_streamon, |
| 1203 | .vidioc_streamoff = vidioc_streamoff, |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 1204 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1205 | .vidiocgmbuf = vidiocgmbuf, |
| 1206 | #endif |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 1207 | .tvnorms = V4L2_STD_525_60, |
Mauro Carvalho Chehab | e75f9ce | 2006-11-20 13:19:20 -0300 | [diff] [blame] | 1208 | .current_norm = V4L2_STD_NTSC_M, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1209 | }; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1210 | /* ----------------------------------------------------------------- |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1211 | Initialization and module stuff |
| 1212 | ------------------------------------------------------------------*/ |
| 1213 | |
| 1214 | static int __init vivi_init(void) |
| 1215 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1216 | int ret = -ENOMEM, i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1217 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1218 | struct video_device *vfd; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1219 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1220 | for (i = 0; i < n_devs; i++) { |
| 1221 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| 1222 | if (NULL == dev) |
| 1223 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1224 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1225 | list_add_tail(&dev->vivi_devlist, &vivi_devlist); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1226 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1227 | /* init video dma queues */ |
| 1228 | INIT_LIST_HEAD(&dev->vidq.active); |
| 1229 | INIT_LIST_HEAD(&dev->vidq.queued); |
| 1230 | init_waitqueue_head(&dev->vidq.wq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1231 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1232 | /* initialize locks */ |
| 1233 | mutex_init(&dev->lock); |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame^] | 1234 | spin_lock_init(&dev->slock); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1235 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1236 | dev->vidq.timeout.function = vivi_vid_timeout; |
| 1237 | dev->vidq.timeout.data = (unsigned long)dev; |
| 1238 | init_timer(&dev->vidq.timeout); |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1239 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1240 | vfd = video_device_alloc(); |
| 1241 | if (NULL == vfd) |
| 1242 | break; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1243 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1244 | *vfd = vivi_template; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1245 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1246 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); |
| 1247 | if (ret < 0) |
| 1248 | break; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1249 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1250 | snprintf(vfd->name, sizeof(vfd->name), "%s (%i)", |
| 1251 | vivi_template.name, vfd->minor); |
| 1252 | |
| 1253 | if (video_nr >= 0) |
| 1254 | video_nr++; |
| 1255 | |
| 1256 | dev->vfd = vfd; |
| 1257 | } |
| 1258 | |
| 1259 | if (ret < 0) { |
| 1260 | vivi_release(); |
| 1261 | printk(KERN_INFO "Error %d while loading vivi driver\n", ret); |
| 1262 | } else |
| 1263 | printk(KERN_INFO "Video Technology Magazine Virtual Video " |
| 1264 | "Capture Board successfully loaded.\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1265 | return ret; |
| 1266 | } |
| 1267 | |
| 1268 | static void __exit vivi_exit(void) |
| 1269 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1270 | vivi_release(); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1271 | } |
| 1272 | |
| 1273 | module_init(vivi_init); |
| 1274 | module_exit(vivi_exit); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1275 | |
| 1276 | MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); |
| 1277 | MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); |
| 1278 | MODULE_LICENSE("Dual BSD/GPL"); |
| 1279 | |
| 1280 | module_param(video_nr, int, 0); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1281 | MODULE_PARM_DESC(video_nr, "video iminor start number"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1282 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1283 | module_param(n_devs, int, 0); |
| 1284 | MODULE_PARM_DESC(n_devs, "number of video devices to create"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1285 | |
Mauro Carvalho Chehab | 8996b3f | 2007-12-13 06:36:22 -0300 | [diff] [blame] | 1286 | module_param_named(debug, vivi_template.debug, int, 0444); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1287 | MODULE_PARM_DESC(debug, "activates debug info"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1288 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1289 | module_param(vid_limit, int, 0644); |
| 1290 | MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); |