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> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 38 | #include <media/v4l2-ioctl.h> |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 39 | #include <linux/kthread.h> |
| 40 | #include <linux/highmem.h> |
Nigel Cunningham | 7dfb710 | 2006-12-06 20:34:23 -0800 | [diff] [blame] | 41 | #include <linux/freezer.h> |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 42 | |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 43 | #define VIVI_MODULE_NAME "vivi" |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 44 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 45 | /* Wake up at about 30 fps */ |
| 46 | #define WAKE_NUMERATOR 30 |
| 47 | #define WAKE_DENOMINATOR 1001 |
| 48 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ |
| 49 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 50 | #include "font.h" |
| 51 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 52 | #define VIVI_MAJOR_VERSION 0 |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 53 | #define VIVI_MINOR_VERSION 5 |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 54 | #define VIVI_RELEASE 0 |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 55 | #define VIVI_VERSION \ |
| 56 | KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 57 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 58 | /* Declare static vars that will be used as parameters */ |
| 59 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 60 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 61 | static int n_devs = 1; /* Number of virtual devices */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 62 | |
| 63 | /* supported controls */ |
| 64 | static struct v4l2_queryctrl vivi_qctrl[] = { |
| 65 | { |
| 66 | .id = V4L2_CID_AUDIO_VOLUME, |
| 67 | .name = "Volume", |
| 68 | .minimum = 0, |
| 69 | .maximum = 65535, |
| 70 | .step = 65535/100, |
| 71 | .default_value = 65535, |
| 72 | .flags = 0, |
| 73 | .type = V4L2_CTRL_TYPE_INTEGER, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 74 | }, { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 75 | .id = V4L2_CID_BRIGHTNESS, |
| 76 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 77 | .name = "Brightness", |
| 78 | .minimum = 0, |
| 79 | .maximum = 255, |
| 80 | .step = 1, |
| 81 | .default_value = 127, |
| 82 | .flags = 0, |
| 83 | }, { |
| 84 | .id = V4L2_CID_CONTRAST, |
| 85 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 86 | .name = "Contrast", |
| 87 | .minimum = 0, |
| 88 | .maximum = 255, |
| 89 | .step = 0x1, |
| 90 | .default_value = 0x10, |
| 91 | .flags = 0, |
| 92 | }, { |
| 93 | .id = V4L2_CID_SATURATION, |
| 94 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 95 | .name = "Saturation", |
| 96 | .minimum = 0, |
| 97 | .maximum = 255, |
| 98 | .step = 0x1, |
| 99 | .default_value = 127, |
| 100 | .flags = 0, |
| 101 | }, { |
| 102 | .id = V4L2_CID_HUE, |
| 103 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 104 | .name = "Hue", |
| 105 | .minimum = -128, |
| 106 | .maximum = 127, |
| 107 | .step = 0x1, |
| 108 | .default_value = 0, |
| 109 | .flags = 0, |
| 110 | } |
| 111 | }; |
| 112 | |
| 113 | static int qctl_regs[ARRAY_SIZE(vivi_qctrl)]; |
| 114 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 115 | #define dprintk(dev, level, fmt, arg...) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 116 | do { \ |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 117 | if (dev->vfd->debug >= (level)) \ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 118 | printk(KERN_DEBUG "vivi: " fmt , ## arg); \ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 119 | } while (0) |
| 120 | |
| 121 | /* ------------------------------------------------------------------ |
| 122 | Basic structures |
| 123 | ------------------------------------------------------------------*/ |
| 124 | |
| 125 | struct vivi_fmt { |
| 126 | char *name; |
| 127 | u32 fourcc; /* v4l2 format id */ |
| 128 | int depth; |
| 129 | }; |
| 130 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 131 | static struct vivi_fmt formats[] = { |
| 132 | { |
| 133 | .name = "4:2:2, packed, YUYV", |
| 134 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 135 | .depth = 16, |
| 136 | }, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 137 | }; |
| 138 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 139 | static struct vivi_fmt *get_format(struct v4l2_format *f) |
| 140 | { |
| 141 | struct vivi_fmt *fmt; |
| 142 | unsigned int k; |
| 143 | |
| 144 | for (k = 0; k < ARRAY_SIZE(formats); k++) { |
| 145 | fmt = &formats[k]; |
| 146 | if (fmt->fourcc == f->fmt.pix.pixelformat) |
| 147 | break; |
| 148 | } |
| 149 | |
| 150 | if (k == ARRAY_SIZE(formats)) |
| 151 | return NULL; |
| 152 | |
| 153 | return &formats[k]; |
| 154 | } |
| 155 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 156 | struct sg_to_addr { |
| 157 | int pos; |
| 158 | struct scatterlist *sg; |
| 159 | }; |
| 160 | |
| 161 | /* buffer for one video frame */ |
| 162 | struct vivi_buffer { |
| 163 | /* common v4l buffer stuff -- must be first */ |
| 164 | struct videobuf_buffer vb; |
| 165 | |
| 166 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 167 | }; |
| 168 | |
| 169 | struct vivi_dmaqueue { |
| 170 | struct list_head active; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 171 | |
| 172 | /* thread for generating video stream*/ |
| 173 | struct task_struct *kthread; |
| 174 | wait_queue_head_t wq; |
| 175 | /* Counters to control fps rate */ |
| 176 | int frame; |
| 177 | int ini_jiffies; |
| 178 | }; |
| 179 | |
| 180 | static LIST_HEAD(vivi_devlist); |
| 181 | |
| 182 | struct vivi_dev { |
| 183 | struct list_head vivi_devlist; |
| 184 | |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 185 | spinlock_t slock; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 186 | struct mutex mutex; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 187 | |
| 188 | int users; |
| 189 | |
| 190 | /* various device info */ |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 191 | struct video_device *vfd; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 192 | |
| 193 | struct vivi_dmaqueue vidq; |
| 194 | |
| 195 | /* Several counters */ |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 196 | int h, m, s, ms; |
| 197 | unsigned long jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 198 | char timestr[13]; |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 199 | |
| 200 | int mv_count; /* Controls bars movement */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 201 | }; |
| 202 | |
| 203 | struct vivi_fh { |
| 204 | struct vivi_dev *dev; |
| 205 | |
| 206 | /* video capture */ |
| 207 | struct vivi_fmt *fmt; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 208 | unsigned int width, height; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 209 | struct videobuf_queue vb_vidq; |
| 210 | |
| 211 | enum v4l2_buf_type type; |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 212 | unsigned char bars[8][3]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 213 | }; |
| 214 | |
| 215 | /* ------------------------------------------------------------------ |
| 216 | DMA and thread functions |
| 217 | ------------------------------------------------------------------*/ |
| 218 | |
| 219 | /* Bars and Colors should match positions */ |
| 220 | |
| 221 | enum colors { |
| 222 | WHITE, |
| 223 | AMBAR, |
| 224 | CYAN, |
| 225 | GREEN, |
| 226 | MAGENTA, |
| 227 | RED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 228 | BLUE, |
| 229 | BLACK, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 230 | }; |
| 231 | |
| 232 | static u8 bars[8][3] = { |
| 233 | /* R G B */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 234 | {204, 204, 204}, /* white */ |
| 235 | {208, 208, 0}, /* ambar */ |
| 236 | { 0, 206, 206}, /* cyan */ |
| 237 | { 0, 239, 0}, /* green */ |
| 238 | {239, 0, 239}, /* magenta */ |
| 239 | {205, 0, 0}, /* red */ |
| 240 | { 0, 0, 255}, /* blue */ |
| 241 | { 0, 0, 0}, /* black */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 242 | }; |
| 243 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 244 | #define TO_Y(r, g, b) \ |
| 245 | (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 246 | /* RGB to V(Cr) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 247 | #define TO_V(r, g, b) \ |
| 248 | (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 249 | /* RGB to U(Cb) Color transform */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 250 | #define TO_U(r, g, b) \ |
| 251 | (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 252 | |
| 253 | #define TSTAMP_MIN_Y 24 |
| 254 | #define TSTAMP_MAX_Y TSTAMP_MIN_Y+15 |
| 255 | #define TSTAMP_MIN_X 64 |
| 256 | |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 257 | static void gen_twopix(struct vivi_fh *fh, unsigned char *buf, int colorpos) |
| 258 | { |
| 259 | unsigned char r_y, g_u, b_v; |
| 260 | unsigned char *p; |
| 261 | int color; |
| 262 | |
| 263 | r_y = fh->bars[colorpos][0]; /* R or precalculated Y */ |
| 264 | g_u = fh->bars[colorpos][1]; /* G or precalculated U */ |
| 265 | b_v = fh->bars[colorpos][2]; /* B or precalculated V */ |
| 266 | |
| 267 | for (color = 0; color < 4; color++) { |
| 268 | p = buf + color; |
| 269 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 270 | switch (fh->fmt->fourcc) { |
| 271 | case V4L2_PIX_FMT_YUYV: |
| 272 | switch (color) { |
| 273 | case 0: |
| 274 | case 2: |
| 275 | *p = r_y; |
| 276 | break; |
| 277 | case 1: |
| 278 | *p = g_u; |
| 279 | break; |
| 280 | case 3: |
| 281 | *p = b_v; |
| 282 | break; |
| 283 | } |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 284 | break; |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | static void gen_line(struct vivi_fh *fh, char *basep, int inipos, int wmax, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 290 | int hmax, int line, int count, char *timestr) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 291 | { |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 292 | int w, i, j; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 293 | int pos = inipos; |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 294 | char *s; |
| 295 | u8 chr; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 296 | |
| 297 | /* We will just duplicate the second pixel at the packet */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 298 | wmax /= 2; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 299 | |
| 300 | /* Generate a standard color bar pattern */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 301 | for (w = 0; w < wmax; w++) { |
| 302 | int colorpos = ((w + count) * 8/(wmax + 1)) % 8; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 303 | |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 304 | gen_twopix(fh, basep + pos, colorpos); |
| 305 | pos += 4; /* only 16 bpp supported for now */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | /* Checks if it is possible to show timestamp */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 309 | if (TSTAMP_MAX_Y >= hmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 310 | goto end; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 311 | if (TSTAMP_MIN_X + strlen(timestr) >= wmax) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 312 | goto end; |
| 313 | |
| 314 | /* Print stream time */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 315 | if (line >= TSTAMP_MIN_Y && line <= TSTAMP_MAX_Y) { |
| 316 | j = TSTAMP_MIN_X; |
| 317 | for (s = timestr; *s; s++) { |
| 318 | chr = rom8x16_bits[(*s-0x30)*16+line-TSTAMP_MIN_Y]; |
| 319 | for (i = 0; i < 7; i++) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 320 | pos = inipos + j * 2; |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 321 | /* Draw white font on black background */ |
| 322 | if (chr & 1 << (7 - i)) |
| 323 | gen_twopix(fh, basep + pos, WHITE); |
| 324 | else |
| 325 | gen_twopix(fh, basep + pos, BLACK); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 326 | j++; |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 331 | end: |
Mauro Carvalho Chehab | b50e7fe | 2007-01-25 05:00:01 -0300 | [diff] [blame] | 332 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 333 | } |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 334 | |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 335 | static void vivi_fillbuff(struct vivi_fh *fh, struct vivi_buffer *buf) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 336 | { |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 337 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 338 | int h , pos = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 339 | int hmax = buf->vb.height; |
| 340 | int wmax = buf->vb.width; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 341 | struct timeval ts; |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 342 | char *tmpbuf; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 343 | void *vbuf = videobuf_to_vmalloc(&buf->vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 344 | |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 345 | if (!vbuf) |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 346 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 347 | |
Marcin Slusarz | 5c554e6 | 2008-06-22 09:11:40 -0300 | [diff] [blame] | 348 | tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); |
| 349 | if (!tmpbuf) |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 350 | return; |
| 351 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 352 | for (h = 0; h < hmax; h++) { |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 353 | gen_line(fh, tmpbuf, 0, wmax, hmax, h, dev->mv_count, |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 354 | dev->timestr); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 355 | memcpy(vbuf + pos, tmpbuf, wmax * 2); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 356 | pos += wmax*2; |
| 357 | } |
| 358 | |
Mauro Carvalho Chehab | 025341d | 2007-12-10 04:43:38 -0300 | [diff] [blame] | 359 | dev->mv_count++; |
Mauro Carvalho Chehab | 3bef5e4 | 2007-09-22 02:01:33 -0300 | [diff] [blame] | 360 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 361 | kfree(tmpbuf); |
| 362 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 363 | /* Updates stream time */ |
| 364 | |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 365 | dev->ms += jiffies_to_msecs(jiffies-dev->jiffies); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 366 | dev->jiffies = jiffies; |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 367 | if (dev->ms >= 1000) { |
| 368 | dev->ms -= 1000; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 369 | dev->s++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 370 | if (dev->s >= 60) { |
| 371 | dev->s -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 372 | dev->m++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 373 | if (dev->m > 60) { |
| 374 | dev->m -= 60; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 375 | dev->h++; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 376 | if (dev->h > 24) |
| 377 | dev->h -= 24; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 378 | } |
| 379 | } |
| 380 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 381 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 382 | dev->h, dev->m, dev->s, dev->ms); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 383 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 384 | dprintk(dev, 2, "vivifill at %s: Buffer 0x%08lx size= %d\n", |
| 385 | dev->timestr, (unsigned long)tmpbuf, pos); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 386 | |
| 387 | /* Advice that buffer was filled */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 388 | buf->vb.field_count++; |
| 389 | do_gettimeofday(&ts); |
| 390 | buf->vb.ts = ts; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 391 | buf->vb.state = VIDEOBUF_DONE; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 392 | } |
| 393 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 394 | static void vivi_thread_tick(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 395 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 396 | struct vivi_buffer *buf; |
| 397 | struct vivi_dev *dev = fh->dev; |
| 398 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 399 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 400 | unsigned long flags = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 401 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 402 | dprintk(dev, 1, "Thread tick\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 403 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 404 | spin_lock_irqsave(&dev->slock, flags); |
| 405 | if (list_empty(&dma_q->active)) { |
| 406 | dprintk(dev, 1, "No active queue to serve\n"); |
| 407 | goto unlock; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 408 | } |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 409 | |
| 410 | buf = list_entry(dma_q->active.next, |
| 411 | struct vivi_buffer, vb.queue); |
| 412 | |
| 413 | /* Nobody is waiting on this buffer, return */ |
| 414 | if (!waitqueue_active(&buf->vb.done)) |
| 415 | goto unlock; |
| 416 | |
| 417 | list_del(&buf->vb.queue); |
| 418 | |
| 419 | do_gettimeofday(&buf->vb.ts); |
| 420 | |
| 421 | /* Fill buffer */ |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 422 | vivi_fillbuff(fh, buf); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 423 | dprintk(dev, 1, "filled buffer %p\n", buf); |
| 424 | |
| 425 | wake_up(&buf->vb.done); |
| 426 | dprintk(dev, 2, "[%p/%d] wakeup\n", buf, buf->vb. i); |
| 427 | unlock: |
| 428 | spin_unlock_irqrestore(&dev->slock, flags); |
| 429 | return; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 430 | } |
| 431 | |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 432 | #define frames_to_ms(frames) \ |
| 433 | ((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR) |
| 434 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 435 | static void vivi_sleep(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 436 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 437 | struct vivi_dev *dev = fh->dev; |
| 438 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
| 439 | int timeout; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 440 | DECLARE_WAITQUEUE(wait, current); |
| 441 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 442 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __func__, |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 443 | (unsigned long)dma_q); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 444 | |
| 445 | add_wait_queue(&dma_q->wq, &wait); |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 446 | if (kthread_should_stop()) |
| 447 | goto stop_task; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 448 | |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 449 | /* Calculate time to wake up */ |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 450 | timeout = msecs_to_jiffies(frames_to_ms(1)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 451 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 452 | vivi_thread_tick(fh); |
Mauro Carvalho Chehab | 6594ad8 | 2007-12-13 16:15:41 -0300 | [diff] [blame] | 453 | |
| 454 | schedule_timeout_interruptible(timeout); |
| 455 | |
| 456 | stop_task: |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 457 | remove_wait_queue(&dma_q->wq, &wait); |
| 458 | try_to_freeze(); |
| 459 | } |
| 460 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 461 | static int vivi_thread(void *data) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 462 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 463 | struct vivi_fh *fh = data; |
| 464 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 465 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 466 | dprintk(dev, 1, "thread started\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 467 | |
Rafael J. Wysocki | 8314418 | 2007-07-17 04:03:35 -0700 | [diff] [blame] | 468 | set_freezable(); |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 469 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 470 | for (;;) { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 471 | vivi_sleep(fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 472 | |
| 473 | if (kthread_should_stop()) |
| 474 | break; |
| 475 | } |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 476 | dprintk(dev, 1, "thread: exit\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 477 | return 0; |
| 478 | } |
| 479 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 480 | static int vivi_start_thread(struct vivi_fh *fh) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 481 | { |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 482 | struct vivi_dev *dev = fh->dev; |
| 483 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 484 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 485 | dma_q->frame = 0; |
| 486 | dma_q->ini_jiffies = jiffies; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 487 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 488 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 489 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 490 | dma_q->kthread = kthread_run(vivi_thread, fh, "vivi"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 491 | |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 492 | if (IS_ERR(dma_q->kthread)) { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 493 | printk(KERN_ERR "vivi: kernel_thread() failed\n"); |
Akinobu Mita | 054afee | 2006-12-20 10:04:00 -0300 | [diff] [blame] | 494 | return PTR_ERR(dma_q->kthread); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 495 | } |
Mauro Carvalho Chehab | 0b60051 | 2007-01-14 08:33:24 -0300 | [diff] [blame] | 496 | /* Wakes thread */ |
| 497 | wake_up_interruptible(&dma_q->wq); |
| 498 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 499 | dprintk(dev, 1, "returning from %s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 500 | return 0; |
| 501 | } |
| 502 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 503 | static void vivi_stop_thread(struct vivi_dmaqueue *dma_q) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 504 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 505 | struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq); |
| 506 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 507 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 508 | /* shutdown control thread */ |
| 509 | if (dma_q->kthread) { |
| 510 | kthread_stop(dma_q->kthread); |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 511 | dma_q->kthread = NULL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 512 | } |
| 513 | } |
| 514 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 515 | /* ------------------------------------------------------------------ |
| 516 | Videobuf operations |
| 517 | ------------------------------------------------------------------*/ |
| 518 | static int |
| 519 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) |
| 520 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 521 | struct vivi_fh *fh = vq->priv_data; |
| 522 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 523 | |
| 524 | *size = fh->width*fh->height*2; |
| 525 | |
| 526 | if (0 == *count) |
| 527 | *count = 32; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 528 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 529 | while (*size * *count > vid_limit * 1024 * 1024) |
| 530 | (*count)--; |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 531 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 532 | dprintk(dev, 1, "%s, count=%d, size=%d\n", __func__, |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 533 | *count, *size); |
Mauro Carvalho Chehab | 6bb2790 | 2007-08-23 16:41:14 -0300 | [diff] [blame] | 534 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 535 | return 0; |
| 536 | } |
| 537 | |
Adrian Bunk | 972c351 | 2006-04-27 21:06:50 -0300 | [diff] [blame] | 538 | 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] | 539 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 540 | struct vivi_fh *fh = vq->priv_data; |
| 541 | struct vivi_dev *dev = fh->dev; |
| 542 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 543 | dprintk(dev, 1, "%s, state: %i\n", __func__, buf->vb.state); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 544 | |
| 545 | if (in_interrupt()) |
| 546 | BUG(); |
| 547 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 548 | videobuf_vmalloc_free(&buf->vb); |
Mauro Carvalho Chehab | fbde31d | 2008-04-13 14:57:44 -0300 | [diff] [blame] | 549 | dprintk(dev, 1, "free_buffer: freed\n"); |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 550 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | #define norm_maxw() 1024 |
| 554 | #define norm_maxh() 768 |
| 555 | static int |
| 556 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 557 | enum v4l2_field field) |
| 558 | { |
| 559 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 560 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 561 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 562 | int rc; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 563 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 564 | dprintk(dev, 1, "%s, field=%d\n", __func__, field); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 565 | |
| 566 | BUG_ON(NULL == fh->fmt); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 567 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 568 | if (fh->width < 48 || fh->width > norm_maxw() || |
| 569 | fh->height < 32 || fh->height > norm_maxh()) |
| 570 | return -EINVAL; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 571 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 572 | buf->vb.size = fh->width*fh->height*2; |
| 573 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 574 | return -EINVAL; |
| 575 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 576 | /* These properties only change when queue is idle, see s_fmt */ |
| 577 | buf->fmt = fh->fmt; |
| 578 | buf->vb.width = fh->width; |
| 579 | buf->vb.height = fh->height; |
| 580 | buf->vb.field = field; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 581 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 582 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 583 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
| 584 | if (rc < 0) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 585 | goto fail; |
| 586 | } |
| 587 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 588 | buf->vb.state = VIDEOBUF_PREPARED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 589 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 590 | return 0; |
| 591 | |
| 592 | fail: |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 593 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 594 | return rc; |
| 595 | } |
| 596 | |
| 597 | static void |
| 598 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 599 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 600 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
| 601 | struct vivi_fh *fh = vq->priv_data; |
| 602 | struct vivi_dev *dev = fh->dev; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 603 | struct vivi_dmaqueue *vidq = &dev->vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 604 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 605 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 606 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 607 | buf->vb.state = VIDEOBUF_QUEUED; |
| 608 | list_add_tail(&buf->vb.queue, &vidq->active); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 609 | } |
| 610 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 611 | static void buffer_release(struct videobuf_queue *vq, |
| 612 | struct videobuf_buffer *vb) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 613 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 614 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 615 | struct vivi_fh *fh = vq->priv_data; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 616 | struct vivi_dev *dev = (struct vivi_dev *)fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 617 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 618 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 619 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 620 | free_buffer(vq, buf); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 621 | } |
| 622 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 623 | static struct videobuf_queue_ops vivi_video_qops = { |
| 624 | .buf_setup = buffer_setup, |
| 625 | .buf_prepare = buffer_prepare, |
| 626 | .buf_queue = buffer_queue, |
| 627 | .buf_release = buffer_release, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 628 | }; |
| 629 | |
| 630 | /* ------------------------------------------------------------------ |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 631 | IOCTL vidioc handling |
| 632 | ------------------------------------------------------------------*/ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 633 | static int vidioc_querycap(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 634 | struct v4l2_capability *cap) |
| 635 | { |
| 636 | strcpy(cap->driver, "vivi"); |
| 637 | strcpy(cap->card, "vivi"); |
| 638 | cap->version = VIVI_VERSION; |
| 639 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 640 | V4L2_CAP_STREAMING | |
| 641 | V4L2_CAP_READWRITE; |
| 642 | return 0; |
| 643 | } |
| 644 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 645 | 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] | 646 | struct v4l2_fmtdesc *f) |
| 647 | { |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 648 | struct vivi_fmt *fmt; |
| 649 | |
| 650 | if (f->index >= ARRAY_SIZE(formats)) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 651 | return -EINVAL; |
| 652 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 653 | fmt = &formats[f->index]; |
| 654 | |
| 655 | strlcpy(f->description, fmt->name, sizeof(f->description)); |
| 656 | f->pixelformat = fmt->fourcc; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 657 | return 0; |
| 658 | } |
| 659 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 660 | 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] | 661 | struct v4l2_format *f) |
| 662 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 663 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 664 | |
| 665 | f->fmt.pix.width = fh->width; |
| 666 | f->fmt.pix.height = fh->height; |
| 667 | f->fmt.pix.field = fh->vb_vidq.field; |
| 668 | f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| 669 | f->fmt.pix.bytesperline = |
| 670 | (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| 671 | f->fmt.pix.sizeimage = |
| 672 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 673 | |
| 674 | return (0); |
| 675 | } |
| 676 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 677 | 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] | 678 | struct v4l2_format *f) |
| 679 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 680 | struct vivi_fh *fh = priv; |
| 681 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 682 | struct vivi_fmt *fmt; |
| 683 | enum v4l2_field field; |
| 684 | unsigned int maxw, maxh; |
| 685 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 686 | fmt = get_format(f); |
| 687 | if (!fmt) { |
| 688 | dprintk(dev, 1, "Fourcc format (0x%08x) invalid.\n", |
| 689 | f->fmt.pix.pixelformat); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 690 | return -EINVAL; |
| 691 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 692 | |
| 693 | field = f->fmt.pix.field; |
| 694 | |
| 695 | if (field == V4L2_FIELD_ANY) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 696 | field = V4L2_FIELD_INTERLACED; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 697 | } else if (V4L2_FIELD_INTERLACED != field) { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 698 | dprintk(dev, 1, "Field type invalid.\n"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 699 | return -EINVAL; |
| 700 | } |
| 701 | |
| 702 | maxw = norm_maxw(); |
| 703 | maxh = norm_maxh(); |
| 704 | |
| 705 | f->fmt.pix.field = field; |
| 706 | if (f->fmt.pix.height < 32) |
| 707 | f->fmt.pix.height = 32; |
| 708 | if (f->fmt.pix.height > maxh) |
| 709 | f->fmt.pix.height = maxh; |
| 710 | if (f->fmt.pix.width < 48) |
| 711 | f->fmt.pix.width = 48; |
| 712 | if (f->fmt.pix.width > maxw) |
| 713 | f->fmt.pix.width = maxw; |
| 714 | f->fmt.pix.width &= ~0x03; |
| 715 | f->fmt.pix.bytesperline = |
| 716 | (f->fmt.pix.width * fmt->depth) >> 3; |
| 717 | f->fmt.pix.sizeimage = |
| 718 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 719 | |
| 720 | return 0; |
| 721 | } |
| 722 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 723 | /*FIXME: This seems to be generic enough to be at videodev2 */ |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 724 | 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] | 725 | struct v4l2_format *f) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 726 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 727 | struct vivi_fh *fh = priv; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 728 | struct videobuf_queue *q = &fh->vb_vidq; |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 729 | unsigned char r, g, b; |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 730 | int k, is_yuv; |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 731 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 732 | int ret = vidioc_try_fmt_vid_cap(file, fh, f); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 733 | if (ret < 0) |
| 734 | return (ret); |
| 735 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 736 | mutex_lock(&q->vb_lock); |
| 737 | |
| 738 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 739 | dprintk(fh->dev, 1, "%s queue busy\n", __func__); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 740 | ret = -EBUSY; |
| 741 | goto out; |
| 742 | } |
| 743 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 744 | fh->fmt = get_format(f); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 745 | fh->width = f->fmt.pix.width; |
| 746 | fh->height = f->fmt.pix.height; |
| 747 | fh->vb_vidq.field = f->fmt.pix.field; |
| 748 | fh->type = f->type; |
| 749 | |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 750 | /* precalculate color bar values to speed up rendering */ |
| 751 | for (k = 0; k < 8; k++) { |
| 752 | r = bars[k][0]; |
| 753 | g = bars[k][1]; |
| 754 | b = bars[k][2]; |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 755 | is_yuv = 0; |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 756 | |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 757 | switch (fh->fmt->fourcc) { |
| 758 | case V4L2_PIX_FMT_YUYV: |
| 759 | is_yuv = 1; |
| 760 | break; |
| 761 | } |
| 762 | |
| 763 | if (is_yuv) { |
| 764 | fh->bars[k][0] = TO_Y(r, g, b); /* Luma */ |
| 765 | fh->bars[k][1] = TO_U(r, g, b); /* Cb */ |
| 766 | fh->bars[k][2] = TO_V(r, g, b); /* Cr */ |
| 767 | } else { |
| 768 | fh->bars[k][0] = r; |
| 769 | fh->bars[k][1] = g; |
| 770 | fh->bars[k][2] = b; |
| 771 | } |
Magnus Damm | 74d7c5a | 2008-10-14 12:46:59 -0300 | [diff] [blame] | 772 | } |
| 773 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 774 | ret = 0; |
| 775 | out: |
| 776 | mutex_unlock(&q->vb_lock); |
| 777 | |
| 778 | return (ret); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 779 | } |
| 780 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 781 | static int vidioc_reqbufs(struct file *file, void *priv, |
| 782 | struct v4l2_requestbuffers *p) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 783 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 784 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 785 | |
| 786 | return (videobuf_reqbufs(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 787 | } |
| 788 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 789 | 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] | 790 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 791 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 792 | |
| 793 | return (videobuf_querybuf(&fh->vb_vidq, p)); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 794 | } |
| 795 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 796 | 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] | 797 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 798 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 799 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 800 | return (videobuf_qbuf(&fh->vb_vidq, p)); |
| 801 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 802 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 803 | 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] | 804 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 805 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 806 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 807 | return (videobuf_dqbuf(&fh->vb_vidq, p, |
| 808 | file->f_flags & O_NONBLOCK)); |
| 809 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 810 | |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 811 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 812 | 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] | 813 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 814 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 815 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 816 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 817 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 818 | #endif |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 819 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 820 | 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] | 821 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 822 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 823 | |
| 824 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 825 | return -EINVAL; |
| 826 | if (i != fh->type) |
| 827 | return -EINVAL; |
| 828 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 829 | return videobuf_streamon(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 830 | } |
| 831 | |
Adrian Bunk | dc46ace | 2006-06-23 06:42:44 -0300 | [diff] [blame] | 832 | 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] | 833 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 834 | struct vivi_fh *fh = priv; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 835 | |
| 836 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 837 | return -EINVAL; |
| 838 | if (i != fh->type) |
| 839 | return -EINVAL; |
| 840 | |
Brandon Philips | ba32bd9 | 2007-09-27 20:55:17 -0300 | [diff] [blame] | 841 | return videobuf_streamoff(&fh->vb_vidq); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 842 | } |
| 843 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 844 | 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] | 845 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 846 | return 0; |
| 847 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 848 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 849 | /* only one input in this sample driver */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 850 | static int vidioc_enum_input(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 851 | struct v4l2_input *inp) |
| 852 | { |
| 853 | if (inp->index != 0) |
| 854 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 855 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 856 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 857 | inp->std = V4L2_STD_525_60; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 858 | strcpy(inp->name, "Camera"); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 859 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 860 | return (0); |
| 861 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 862 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 863 | 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] | 864 | { |
| 865 | *i = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 866 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 867 | return (0); |
| 868 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 869 | 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] | 870 | { |
| 871 | if (i > 0) |
| 872 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 873 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 874 | return (0); |
| 875 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 876 | |
| 877 | /* --- controls ---------------------------------------------- */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 878 | static int vidioc_queryctrl(struct file *file, void *priv, |
| 879 | struct v4l2_queryctrl *qc) |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 880 | { |
| 881 | int i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 882 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 883 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 884 | if (qc->id && qc->id == vivi_qctrl[i].id) { |
| 885 | memcpy(qc, &(vivi_qctrl[i]), |
| 886 | sizeof(*qc)); |
| 887 | return (0); |
| 888 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 889 | |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 890 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 891 | } |
| 892 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 893 | static int vidioc_g_ctrl(struct file *file, void *priv, |
| 894 | struct v4l2_control *ctrl) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 895 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 896 | int i; |
| 897 | |
| 898 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 899 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 900 | ctrl->value = qctl_regs[i]; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 901 | return (0); |
| 902 | } |
| 903 | |
| 904 | return -EINVAL; |
| 905 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 906 | static int vidioc_s_ctrl(struct file *file, void *priv, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 907 | struct v4l2_control *ctrl) |
| 908 | { |
| 909 | int i; |
| 910 | |
| 911 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
| 912 | if (ctrl->id == vivi_qctrl[i].id) { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 913 | if (ctrl->value < vivi_qctrl[i].minimum |
| 914 | || ctrl->value > vivi_qctrl[i].maximum) { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 915 | return (-ERANGE); |
| 916 | } |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 917 | qctl_regs[i] = ctrl->value; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 918 | return (0); |
| 919 | } |
| 920 | return -EINVAL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 921 | } |
| 922 | |
| 923 | /* ------------------------------------------------------------------ |
| 924 | File operations for the device |
| 925 | ------------------------------------------------------------------*/ |
| 926 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 927 | static int vivi_open(struct inode *inode, struct file *file) |
| 928 | { |
| 929 | int minor = iminor(inode); |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 930 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | 63b79cf | 2008-04-26 08:25:18 -0300 | [diff] [blame] | 931 | struct vivi_fh *fh = NULL; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 932 | int i; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 933 | int retval = 0; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 934 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 935 | printk(KERN_DEBUG "vivi: open called (minor=%d)\n", minor); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 936 | |
Hans Verkuil | d56dc61 | 2008-07-30 08:43:36 -0300 | [diff] [blame] | 937 | lock_kernel(); |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 938 | list_for_each_entry(dev, &vivi_devlist, vivi_devlist) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 939 | if (dev->vfd->minor == minor) |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 940 | goto found; |
Hans Verkuil | d56dc61 | 2008-07-30 08:43:36 -0300 | [diff] [blame] | 941 | unlock_kernel(); |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 942 | return -ENODEV; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 943 | |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 944 | found: |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 945 | mutex_lock(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 946 | dev->users++; |
| 947 | |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 948 | if (dev->users > 1) { |
| 949 | dev->users--; |
| 950 | retval = -EBUSY; |
| 951 | goto unlock; |
| 952 | } |
| 953 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 954 | dprintk(dev, 1, "open minor=%d type=%s users=%d\n", minor, |
Trent Piepho | a991f44 | 2007-10-10 05:37:43 -0300 | [diff] [blame] | 955 | v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 956 | |
| 957 | /* allocate + initialize per filehandle data */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 958 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 959 | if (NULL == fh) { |
| 960 | dev->users--; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 961 | retval = -ENOMEM; |
| 962 | goto unlock; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 963 | } |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 964 | unlock: |
| 965 | mutex_unlock(&dev->mutex); |
Hans Verkuil | d56dc61 | 2008-07-30 08:43:36 -0300 | [diff] [blame] | 966 | if (retval) { |
| 967 | unlock_kernel(); |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 968 | return retval; |
Hans Verkuil | d56dc61 | 2008-07-30 08:43:36 -0300 | [diff] [blame] | 969 | } |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 970 | |
| 971 | file->private_data = fh; |
| 972 | fh->dev = dev; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 973 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 974 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
Magnus Damm | d891f47 | 2008-10-14 12:47:09 -0300 | [diff] [blame^] | 975 | fh->fmt = &formats[0]; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 976 | fh->width = 640; |
| 977 | fh->height = 480; |
| 978 | |
| 979 | /* Put all controls at a sane state */ |
| 980 | for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 981 | qctl_regs[i] = vivi_qctrl[i].default_value; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 982 | |
| 983 | /* Resets frame counters */ |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 984 | dev->h = 0; |
| 985 | dev->m = 0; |
| 986 | dev->s = 0; |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 987 | dev->ms = 0; |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 988 | dev->mv_count = 0; |
| 989 | dev->jiffies = jiffies; |
| 990 | sprintf(dev->timestr, "%02d:%02d:%02d:%03d", |
Mauro Carvalho Chehab | dfd8c04 | 2008-01-13 19:36:11 -0300 | [diff] [blame] | 991 | dev->h, dev->m, dev->s, dev->ms); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 992 | |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 993 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &vivi_video_qops, |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 994 | NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 995 | sizeof(struct vivi_buffer), fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 996 | |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 997 | vivi_start_thread(fh); |
Hans Verkuil | d56dc61 | 2008-07-30 08:43:36 -0300 | [diff] [blame] | 998 | unlock_kernel(); |
Brandon Philips | 78718e5 | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 999 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1000 | return 0; |
| 1001 | } |
| 1002 | |
| 1003 | static ssize_t |
| 1004 | vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) |
| 1005 | { |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1006 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1007 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1008 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
Mauro Carvalho Chehab | acb09af | 2007-07-29 22:56:11 -0300 | [diff] [blame] | 1009 | return videobuf_read_stream(&fh->vb_vidq, data, count, ppos, 0, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1010 | file->f_flags & O_NONBLOCK); |
| 1011 | } |
| 1012 | return 0; |
| 1013 | } |
| 1014 | |
| 1015 | static unsigned int |
| 1016 | vivi_poll(struct file *file, struct poll_table_struct *wait) |
| 1017 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1018 | struct vivi_fh *fh = file->private_data; |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1019 | struct vivi_dev *dev = fh->dev; |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 1020 | struct videobuf_queue *q = &fh->vb_vidq; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1021 | |
Harvey Harrison | 7e28adb | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 1022 | dprintk(dev, 1, "%s\n", __func__); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1023 | |
| 1024 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 1025 | return POLLERR; |
| 1026 | |
Brandon Philips | 85c7c70bc | 2007-09-27 20:55:02 -0300 | [diff] [blame] | 1027 | return videobuf_poll_stream(file, q, wait); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1028 | } |
| 1029 | |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1030 | static int vivi_close(struct inode *inode, struct file *file) |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1031 | { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1032 | struct vivi_fh *fh = file->private_data; |
| 1033 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1034 | struct vivi_dmaqueue *vidq = &dev->vidq; |
| 1035 | |
| 1036 | int minor = iminor(inode); |
| 1037 | |
| 1038 | vivi_stop_thread(vidq); |
Brandon Philips | 053fcb6 | 2007-11-13 20:11:26 -0300 | [diff] [blame] | 1039 | videobuf_stop(&fh->vb_vidq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1040 | videobuf_mmap_free(&fh->vb_vidq); |
| 1041 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1042 | kfree(fh); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1043 | |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1044 | mutex_lock(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1045 | dev->users--; |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1046 | mutex_unlock(&dev->mutex); |
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, "close called (minor=%d, users=%d)\n", |
| 1049 | minor, dev->users); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1050 | |
| 1051 | return 0; |
| 1052 | } |
| 1053 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1054 | static int vivi_release(void) |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1055 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1056 | struct vivi_dev *dev; |
| 1057 | struct list_head *list; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1058 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1059 | while (!list_empty(&vivi_devlist)) { |
| 1060 | list = vivi_devlist.next; |
| 1061 | list_del(list); |
| 1062 | dev = list_entry(list, struct vivi_dev, vivi_devlist); |
| 1063 | |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1064 | if (-1 != dev->vfd->minor) { |
Adrian Bunk | 8da9bae | 2008-09-03 17:12:25 -0300 | [diff] [blame] | 1065 | printk(KERN_INFO "%s: unregistering /dev/video%d\n", |
| 1066 | VIVI_MODULE_NAME, dev->vfd->minor); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1067 | video_unregister_device(dev->vfd); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1068 | } else { |
Adrian Bunk | 8da9bae | 2008-09-03 17:12:25 -0300 | [diff] [blame] | 1069 | printk(KERN_INFO "%s: releasing /dev/video%d\n", |
Mauro Carvalho Chehab | 584ce48 | 2008-06-10 15:21:49 -0300 | [diff] [blame] | 1070 | VIVI_MODULE_NAME, dev->vfd->minor); |
Adrian Bunk | 8da9bae | 2008-09-03 17:12:25 -0300 | [diff] [blame] | 1071 | video_device_release(dev->vfd); |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1072 | } |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1073 | |
| 1074 | kfree(dev); |
| 1075 | } |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1076 | |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1080 | 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] | 1081 | { |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1082 | struct vivi_fh *fh = file->private_data; |
| 1083 | struct vivi_dev *dev = fh->dev; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1084 | int ret; |
| 1085 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1086 | 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] | 1087 | |
Mauro Carvalho Chehab | 543323b | 2007-12-10 09:33:52 -0300 | [diff] [blame] | 1088 | ret = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1089 | |
Mauro Carvalho Chehab | 6c2f990 | 2007-12-13 13:30:14 -0300 | [diff] [blame] | 1090 | 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] | 1091 | (unsigned long)vma->vm_start, |
| 1092 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, |
| 1093 | ret); |
| 1094 | |
| 1095 | return ret; |
| 1096 | } |
| 1097 | |
Arjan van de Ven | fa027c2 | 2007-02-12 00:55:33 -0800 | [diff] [blame] | 1098 | static const struct file_operations vivi_fops = { |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1099 | .owner = THIS_MODULE, |
| 1100 | .open = vivi_open, |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1101 | .release = vivi_close, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1102 | .read = vivi_read, |
| 1103 | .poll = vivi_poll, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1104 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
Mauro Carvalho Chehab | fbde31d | 2008-04-13 14:57:44 -0300 | [diff] [blame] | 1105 | .compat_ioctl = v4l_compat_ioctl32, |
Mauro Carvalho Chehab | 5a03770 | 2007-08-02 23:31:54 -0300 | [diff] [blame] | 1106 | .mmap = vivi_mmap, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1107 | .llseek = no_llseek, |
| 1108 | }; |
| 1109 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1110 | static const struct v4l2_ioctl_ops vivi_ioctl_ops = { |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1111 | .vidioc_querycap = vidioc_querycap, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1112 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1113 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1114 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1115 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1116 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1117 | .vidioc_querybuf = vidioc_querybuf, |
| 1118 | .vidioc_qbuf = vidioc_qbuf, |
| 1119 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1120 | .vidioc_s_std = vidioc_s_std, |
| 1121 | .vidioc_enum_input = vidioc_enum_input, |
| 1122 | .vidioc_g_input = vidioc_g_input, |
| 1123 | .vidioc_s_input = vidioc_s_input, |
| 1124 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1125 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1126 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1127 | .vidioc_streamon = vidioc_streamon, |
| 1128 | .vidioc_streamoff = vidioc_streamoff, |
Mauro Carvalho Chehab | 0dfa9ab | 2006-08-08 09:10:10 -0300 | [diff] [blame] | 1129 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1130 | .vidiocgmbuf = vidiocgmbuf, |
| 1131 | #endif |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1132 | }; |
| 1133 | |
| 1134 | static struct video_device vivi_template = { |
| 1135 | .name = "vivi", |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1136 | .fops = &vivi_fops, |
| 1137 | .ioctl_ops = &vivi_ioctl_ops, |
| 1138 | .minor = -1, |
| 1139 | .release = video_device_release, |
| 1140 | |
Mauro Carvalho Chehab | 784c668 | 2007-12-13 06:35:26 -0300 | [diff] [blame] | 1141 | .tvnorms = V4L2_STD_525_60, |
Mauro Carvalho Chehab | e75f9ce | 2006-11-20 13:19:20 -0300 | [diff] [blame] | 1142 | .current_norm = V4L2_STD_NTSC_M, |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1143 | }; |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1144 | /* ----------------------------------------------------------------- |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1145 | Initialization and module stuff |
| 1146 | ------------------------------------------------------------------*/ |
| 1147 | |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1148 | /* This routine allocates from 1 to n_devs virtual drivers. |
| 1149 | |
| 1150 | The real maximum number of virtual drivers will depend on how many drivers |
| 1151 | will succeed. This is limited to the maximum number of devices that |
| 1152 | videodev supports. Since there are 64 minors for video grabbers, this is |
| 1153 | currently the theoretical maximum limit. However, a further limit does |
| 1154 | exist at videodev that forbids any driver to register more than 32 video |
| 1155 | grabbers. |
| 1156 | */ |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1157 | static int __init vivi_init(void) |
| 1158 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1159 | int ret = -ENOMEM, i; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1160 | struct vivi_dev *dev; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1161 | struct video_device *vfd; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1162 | |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1163 | if (n_devs <= 0) |
| 1164 | n_devs = 1; |
| 1165 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1166 | for (i = 0; i < n_devs; i++) { |
| 1167 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1168 | if (!dev) |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1169 | break; |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1170 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1171 | /* init video dma queues */ |
| 1172 | INIT_LIST_HEAD(&dev->vidq.active); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1173 | init_waitqueue_head(&dev->vidq.wq); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1174 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1175 | /* initialize locks */ |
Mauro Carvalho Chehab | 55862ac | 2007-12-13 16:13:37 -0300 | [diff] [blame] | 1176 | spin_lock_init(&dev->slock); |
Brandon Philips | aa9dbac | 2008-04-02 18:10:59 -0300 | [diff] [blame] | 1177 | mutex_init(&dev->mutex); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1178 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1179 | vfd = video_device_alloc(); |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1180 | if (!vfd) { |
| 1181 | kfree(dev); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1182 | break; |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1183 | } |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1184 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1185 | *vfd = vivi_template; |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1186 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1187 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1188 | if (ret < 0) { |
| 1189 | video_device_release(vfd); |
| 1190 | kfree(dev); |
| 1191 | |
| 1192 | /* If some registers succeeded, keep driver */ |
| 1193 | if (i) |
| 1194 | ret = 0; |
| 1195 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1196 | break; |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1197 | } |
| 1198 | |
| 1199 | /* Now that everything is fine, let's add it to device list */ |
| 1200 | list_add_tail(&dev->vivi_devlist, &vivi_devlist); |
Mauro Carvalho Chehab | f905c44 | 2007-12-10 04:07:03 -0300 | [diff] [blame] | 1201 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1202 | snprintf(vfd->name, sizeof(vfd->name), "%s (%i)", |
| 1203 | vivi_template.name, vfd->minor); |
| 1204 | |
| 1205 | if (video_nr >= 0) |
| 1206 | video_nr++; |
| 1207 | |
| 1208 | dev->vfd = vfd; |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1209 | 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] | 1210 | VIVI_MODULE_NAME, vfd->minor); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1211 | } |
| 1212 | |
| 1213 | if (ret < 0) { |
| 1214 | vivi_release(); |
| 1215 | printk(KERN_INFO "Error %d while loading vivi driver\n", ret); |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1216 | } else { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1217 | printk(KERN_INFO "Video Technology Magazine Virtual Video " |
Carl Karsten | 745271a | 2008-06-10 00:02:32 -0300 | [diff] [blame] | 1218 | "Capture Board ver %u.%u.%u successfully loaded.\n", |
| 1219 | (VIVI_VERSION >> 16) & 0xFF, (VIVI_VERSION >> 8) & 0xFF, |
| 1220 | VIVI_VERSION & 0xFF); |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1221 | |
| 1222 | /* n_devs will reflect the actual number of allocated devices */ |
| 1223 | n_devs = i; |
| 1224 | } |
| 1225 | |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1226 | return ret; |
| 1227 | } |
| 1228 | |
| 1229 | static void __exit vivi_exit(void) |
| 1230 | { |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1231 | vivi_release(); |
Mauro Carvalho Chehab | 1e6dd65 | 2006-03-10 12:40:10 -0300 | [diff] [blame] | 1232 | } |
| 1233 | |
| 1234 | module_init(vivi_init); |
| 1235 | module_exit(vivi_exit); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1236 | |
| 1237 | MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); |
| 1238 | MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); |
| 1239 | MODULE_LICENSE("Dual BSD/GPL"); |
| 1240 | |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1241 | module_param(video_nr, uint, 0444); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1242 | MODULE_PARM_DESC(video_nr, "video iminor start number"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1243 | |
Mauro Carvalho Chehab | 980d4f1 | 2008-09-03 17:11:53 -0300 | [diff] [blame] | 1244 | module_param(n_devs, uint, 0444); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1245 | MODULE_PARM_DESC(n_devs, "number of video devices to create"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1246 | |
Mauro Carvalho Chehab | 8996b3f | 2007-12-13 06:36:22 -0300 | [diff] [blame] | 1247 | module_param_named(debug, vivi_template.debug, int, 0444); |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1248 | MODULE_PARM_DESC(debug, "activates debug info"); |
Mauro Carvalho Chehab | c820cc4 | 2006-06-04 10:34:12 -0300 | [diff] [blame] | 1249 | |
Mauro Carvalho Chehab | 55712ff | 2007-12-10 04:38:11 -0300 | [diff] [blame] | 1250 | module_param(vid_limit, int, 0644); |
| 1251 | MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); |