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Commit | Line | Data |
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483dfdb6 | 1 | /* |
3ff4ad81 | 2 | * USB USBVISION Video device driver 0.9.10 |
483dfdb6 TM |
3 | * |
4 | * | |
5 | * | |
6 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> | |
7 | * | |
8 | * This module is part of usbvision driver project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Let's call the version 0.... until compression decoding is completely | |
25 | * implemented. | |
26 | * | |
27 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
28 | * It was based on USB CPiA driver written by Peter Pregler, | |
29 | * Scott J. Bertin and Johannes Erdfelt | |
30 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
31 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
32 | * Updates to driver completed by Dwaine P. Garden | |
33 | * | |
34 | * | |
35 | * TODO: | |
36 | * - use submit_urb for all setup packets | |
37 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
38 | * nt1003 memory. | |
c5f48367 TM |
39 | * - Add audio on endpoint 3 for nt1004 chip. |
40 | * Seems impossible, needs a codec interface. Which one? | |
483dfdb6 TM |
41 | * - Clean up the driver. |
42 | * - optimization for performance. | |
43 | * - Add Videotext capability (VBI). Working on it..... | |
44 | * - Check audio for other devices | |
45 | * | |
46 | */ | |
47 | ||
48 | #include <linux/kernel.h> | |
483dfdb6 TM |
49 | #include <linux/list.h> |
50 | #include <linux/timer.h> | |
51 | #include <linux/slab.h> | |
52 | #include <linux/mm.h> | |
483dfdb6 | 53 | #include <linux/highmem.h> |
483dfdb6 TM |
54 | #include <linux/vmalloc.h> |
55 | #include <linux/module.h> | |
56 | #include <linux/init.h> | |
57 | #include <linux/spinlock.h> | |
6d6a48e5 | 58 | #include <linux/io.h> |
483dfdb6 | 59 | #include <linux/videodev2.h> |
483dfdb6 TM |
60 | #include <linux/i2c.h> |
61 | ||
b5dcee22 | 62 | #include <media/i2c/saa7115.h> |
483dfdb6 | 63 | #include <media/v4l2-common.h> |
35ea11ff | 64 | #include <media/v4l2-ioctl.h> |
fd95870d | 65 | #include <media/v4l2-event.h> |
483dfdb6 | 66 | #include <media/tuner.h> |
483dfdb6 | 67 | |
a1ed551c | 68 | #include <linux/workqueue.h> |
483dfdb6 | 69 | |
483dfdb6 | 70 | #include "usbvision.h" |
659ae56d | 71 | #include "usbvision-cards.h" |
483dfdb6 | 72 | |
85ee7a1d JP |
73 | #define DRIVER_AUTHOR \ |
74 | "Joerg Heckenbach <joerg@heckenbach-aw.de>, " \ | |
75 | "Dwaine Garden <DwaineGarden@rogers.com>" | |
483dfdb6 TM |
76 | #define DRIVER_NAME "usbvision" |
77 | #define DRIVER_ALIAS "USBVision" | |
78 | #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" | |
79 | #define DRIVER_LICENSE "GPL" | |
1990d50b | 80 | #define USBVISION_VERSION_STRING "0.9.11" |
483dfdb6 TM |
81 | |
82 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
83 | ||
84 | ||
483dfdb6 | 85 | #ifdef USBVISION_DEBUG |
df18c319 | 86 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 87 | if (video_debug & (level)) \ |
a482f327 GKH |
88 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
89 | __func__, __LINE__ , ## args); \ | |
df18c319 | 90 | } |
483dfdb6 | 91 | #else |
6d6a48e5 | 92 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
93 | #endif |
94 | ||
6d6a48e5 HV |
95 | #define DBG_IO (1 << 1) |
96 | #define DBG_PROBE (1 << 2) | |
97 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 98 | |
52cb0bf2 | 99 | /* String operations */ |
6d6a48e5 HV |
100 | #define rmspace(str) while (*str == ' ') str++; |
101 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
102 | |
103 | ||
c5f48367 | 104 | /* sequential number of usbvision device */ |
ff699e6b | 105 | static int usbvision_nr; |
483dfdb6 TM |
106 | |
107 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
108 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
109 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
110 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
111 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
112 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
113 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
52cb0bf2 | 114 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
115 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } |
116 | }; | |
117 | ||
c5f48367 | 118 | /* Function prototypes */ |
483dfdb6 TM |
119 | static void usbvision_release(struct usb_usbvision *usbvision); |
120 | ||
c84e6036 | 121 | /* Default initialization of device driver parameters */ |
c5f48367 | 122 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 123 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 124 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 125 | static int video_debug; |
c5f48367 TM |
126 | /* Sequential Number of Video Device */ |
127 | static int video_nr = -1; | |
128 | /* Sequential Number of Radio Device */ | |
129 | static int radio_nr = -1; | |
c5f48367 TM |
130 | |
131 | /* Grab parameters for the device driver */ | |
132 | ||
133 | /* Showing parameters under SYSFS */ | |
5490a7cb | 134 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 135 | module_param(video_debug, int, 0444); |
483dfdb6 TM |
136 | module_param(video_nr, int, 0444); |
137 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 138 | |
5490a7cb | 139 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 140 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
483dfdb6 TM |
141 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
142 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
143 | |
144 | ||
52cb0bf2 | 145 | /* Misc stuff */ |
483dfdb6 TM |
146 | MODULE_AUTHOR(DRIVER_AUTHOR); |
147 | MODULE_DESCRIPTION(DRIVER_DESC); | |
148 | MODULE_LICENSE(DRIVER_LICENSE); | |
a1ed551c MCC |
149 | MODULE_VERSION(USBVISION_VERSION_STRING); |
150 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
151 | |
152 | ||
c5f48367 TM |
153 | /*****************************************************************************/ |
154 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
155 | /* Device information is located at /sys/class/video4linux/video0 */ | |
156 | /* Device parameters information is located at /sys/module/usbvision */ | |
157 | /* Device USB Information is located at */ | |
158 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
159 | /*****************************************************************************/ | |
483dfdb6 | 160 | |
483dfdb6 TM |
161 | #define YES_NO(x) ((x) ? "Yes" : "No") |
162 | ||
54bd5b66 | 163 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 164 | { |
03c6bdfc | 165 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
166 | return video_get_drvdata(vdev); |
167 | } | |
168 | ||
54bd5b66 KS |
169 | static ssize_t show_version(struct device *cd, |
170 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
171 | { |
172 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
173 | } | |
54bd5b66 | 174 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 175 | |
54bd5b66 KS |
176 | static ssize_t show_model(struct device *cd, |
177 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 178 | { |
03c6bdfc | 179 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 180 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 181 | return sprintf(buf, "%s\n", |
5490a7cb | 182 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 183 | } |
54bd5b66 | 184 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 185 | |
54bd5b66 KS |
186 | static ssize_t show_hue(struct device *cd, |
187 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 188 | { |
03c6bdfc | 189 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
190 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
191 | struct v4l2_control ctrl; | |
192 | ctrl.id = V4L2_CID_HUE; | |
193 | ctrl.value = 0; | |
6d6a48e5 | 194 | if (usbvision->user) |
1df79537 | 195 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 196 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 197 | } |
54bd5b66 | 198 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 199 | |
54bd5b66 KS |
200 | static ssize_t show_contrast(struct device *cd, |
201 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 202 | { |
03c6bdfc | 203 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
204 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
205 | struct v4l2_control ctrl; | |
206 | ctrl.id = V4L2_CID_CONTRAST; | |
207 | ctrl.value = 0; | |
6d6a48e5 | 208 | if (usbvision->user) |
1df79537 | 209 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 210 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 211 | } |
54bd5b66 | 212 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 213 | |
54bd5b66 KS |
214 | static ssize_t show_brightness(struct device *cd, |
215 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 216 | { |
03c6bdfc | 217 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
218 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
219 | struct v4l2_control ctrl; | |
220 | ctrl.id = V4L2_CID_BRIGHTNESS; | |
221 | ctrl.value = 0; | |
6d6a48e5 | 222 | if (usbvision->user) |
1df79537 | 223 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 224 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 225 | } |
54bd5b66 | 226 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 227 | |
54bd5b66 KS |
228 | static ssize_t show_saturation(struct device *cd, |
229 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 230 | { |
03c6bdfc | 231 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
232 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
233 | struct v4l2_control ctrl; | |
234 | ctrl.id = V4L2_CID_SATURATION; | |
235 | ctrl.value = 0; | |
6d6a48e5 | 236 | if (usbvision->user) |
1df79537 | 237 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 238 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 239 | } |
54bd5b66 | 240 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 241 | |
54bd5b66 KS |
242 | static ssize_t show_streaming(struct device *cd, |
243 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 244 | { |
03c6bdfc | 245 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 246 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 247 | return sprintf(buf, "%s\n", |
6d6a48e5 | 248 | YES_NO(usbvision->streaming == stream_on ? 1 : 0)); |
483dfdb6 | 249 | } |
54bd5b66 | 250 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 251 | |
54bd5b66 KS |
252 | static ssize_t show_compression(struct device *cd, |
253 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 254 | { |
03c6bdfc | 255 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 256 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 257 | return sprintf(buf, "%s\n", |
6d6a48e5 | 258 | YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); |
483dfdb6 | 259 | } |
54bd5b66 | 260 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 261 | |
54bd5b66 KS |
262 | static ssize_t show_device_bridge(struct device *cd, |
263 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 264 | { |
03c6bdfc | 265 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 266 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 267 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 268 | } |
54bd5b66 | 269 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
270 | |
271 | static void usbvision_create_sysfs(struct video_device *vdev) | |
272 | { | |
273 | int res; | |
6d6a48e5 | 274 | |
ed00b41d DG |
275 | if (!vdev) |
276 | return; | |
277 | do { | |
22a04f10 | 278 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 279 | if (res < 0) |
ed00b41d | 280 | break; |
22a04f10 | 281 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 282 | if (res < 0) |
ed00b41d | 283 | break; |
22a04f10 | 284 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 285 | if (res < 0) |
ed00b41d | 286 | break; |
22a04f10 | 287 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 288 | if (res < 0) |
ed00b41d | 289 | break; |
22a04f10 | 290 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 291 | if (res < 0) |
ed00b41d | 292 | break; |
22a04f10 | 293 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 294 | if (res < 0) |
ed00b41d | 295 | break; |
22a04f10 | 296 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 297 | if (res < 0) |
ed00b41d | 298 | break; |
22a04f10 | 299 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 300 | if (res < 0) |
ed00b41d | 301 | break; |
22a04f10 | 302 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 303 | if (res >= 0) |
ed00b41d DG |
304 | return; |
305 | } while (0); | |
306 | ||
be9ed511 | 307 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
308 | } |
309 | ||
310 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
311 | { | |
312 | if (vdev) { | |
22a04f10 HV |
313 | device_remove_file(&vdev->dev, &dev_attr_version); |
314 | device_remove_file(&vdev->dev, &dev_attr_model); | |
315 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
316 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
317 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
318 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
319 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
320 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
321 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
322 | } |
323 | } | |
324 | ||
483dfdb6 TM |
325 | /* |
326 | * usbvision_open() | |
327 | * | |
328 | * This is part of Video 4 Linux API. The driver can be opened by one | |
329 | * client only (checks internal counter 'usbvision->user'). The procedure | |
330 | * then allocates buffers needed for video processing. | |
331 | * | |
332 | */ | |
bec43661 | 333 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 334 | { |
c170ecf4 | 335 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 336 | int err_code = 0; |
483dfdb6 TM |
337 | |
338 | PDEBUG(DBG_IO, "open"); | |
339 | ||
4d345708 HV |
340 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
341 | return -ERESTARTSYS; | |
483dfdb6 | 342 | |
62e25949 | 343 | if (usbvision->user) { |
5490a7cb | 344 | err_code = -EBUSY; |
62e25949 | 345 | } else { |
fd95870d HV |
346 | err_code = v4l2_fh_open(file); |
347 | if (err_code) | |
348 | goto unlock; | |
349 | ||
6f78e186 | 350 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 351 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 352 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
353 | /* Allocate intermediate decompression buffers |
354 | only if needed */ | |
5490a7cb | 355 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 356 | } |
5490a7cb | 357 | if (err_code) { |
483dfdb6 | 358 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 359 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
360 | usbvision_decompress_free(usbvision); |
361 | } | |
362 | } | |
363 | ||
364 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 365 | if (!err_code) { |
483dfdb6 TM |
366 | /* Send init sequence only once, it's large! */ |
367 | if (!usbvision->initialized) { | |
368 | int setup_ok = 0; | |
6d6a48e5 | 369 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
370 | if (setup_ok) |
371 | usbvision->initialized = 1; | |
372 | else | |
5490a7cb | 373 | err_code = -EBUSY; |
483dfdb6 TM |
374 | } |
375 | ||
5490a7cb | 376 | if (!err_code) { |
483dfdb6 | 377 | usbvision_begin_streaming(usbvision); |
5490a7cb | 378 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 379 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 380 | usbvision_muxsel(usbvision, 0); |
62e25949 HV |
381 | |
382 | /* prepare queues */ | |
383 | usbvision_empty_framequeues(usbvision); | |
483dfdb6 | 384 | usbvision->user++; |
483dfdb6 | 385 | } |
483dfdb6 TM |
386 | } |
387 | ||
fd95870d | 388 | unlock: |
4d345708 | 389 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
390 | |
391 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 392 | return err_code; |
483dfdb6 TM |
393 | } |
394 | ||
395 | /* | |
396 | * usbvision_v4l2_close() | |
397 | * | |
398 | * This is part of Video 4 Linux API. The procedure | |
399 | * stops streaming and deallocates all buffers that were earlier | |
400 | * allocated in usbvision_v4l2_open(). | |
401 | * | |
402 | */ | |
bec43661 | 403 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 404 | { |
c170ecf4 | 405 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
406 | |
407 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 | 408 | |
4d345708 | 409 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
410 | usbvision_audio_off(usbvision); |
411 | usbvision_restart_isoc(usbvision); | |
412 | usbvision_stop_isoc(usbvision); | |
413 | ||
414 | usbvision_decompress_free(usbvision); | |
38284ba3 | 415 | usbvision_frames_free(usbvision); |
6f78e186 | 416 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 417 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
418 | |
419 | usbvision->user--; | |
e2c84ccb | 420 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 421 | |
483dfdb6 | 422 | if (usbvision->remove_pending) { |
d2db42dd | 423 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 | 424 | usbvision_release(usbvision); |
470a9147 | 425 | return 0; |
483dfdb6 TM |
426 | } |
427 | ||
428 | PDEBUG(DBG_IO, "success"); | |
fd95870d | 429 | return v4l2_fh_release(file); |
483dfdb6 TM |
430 | } |
431 | ||
432 | ||
433 | /* | |
434 | * usbvision_ioctl() | |
435 | * | |
436 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
437 | * | |
438 | */ | |
c5f48367 | 439 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 440 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 441 | struct v4l2_dbg_register *reg) |
483dfdb6 | 442 | { |
c170ecf4 | 443 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 444 | int err_code; |
483dfdb6 | 445 | |
c5f48367 | 446 | /* NT100x has a 8-bit register space */ |
5490a7cb HV |
447 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
448 | if (err_code < 0) { | |
2aa689dd | 449 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 450 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", |
5490a7cb HV |
451 | __func__, err_code); |
452 | return err_code; | |
c5f48367 | 453 | } |
5490a7cb | 454 | reg->val = err_code; |
aecde8b5 | 455 | reg->size = 1; |
c5f48367 TM |
456 | return 0; |
457 | } | |
483dfdb6 | 458 | |
6d6a48e5 | 459 | static int vidioc_s_register(struct file *file, void *priv, |
977ba3b1 | 460 | const struct v4l2_dbg_register *reg) |
c5f48367 | 461 | { |
c170ecf4 | 462 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 463 | int err_code; |
62d50add | 464 | |
c5f48367 | 465 | /* NT100x has a 8-bit register space */ |
6d6a48e5 | 466 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 467 | if (err_code < 0) { |
2aa689dd | 468 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 469 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", |
5490a7cb HV |
470 | __func__, err_code); |
471 | return err_code; | |
c5f48367 TM |
472 | } |
473 | return 0; | |
474 | } | |
483dfdb6 | 475 | #endif |
c5f48367 | 476 | |
6d6a48e5 | 477 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
478 | struct v4l2_capability *vc) |
479 | { | |
c170ecf4 | 480 | struct usb_usbvision *usbvision = video_drvdata(file); |
cbe12cc6 | 481 | struct video_device *vdev = video_devdata(file); |
c5f48367 TM |
482 | |
483 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
484 | strlcpy(vc->card, | |
5490a7cb | 485 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 486 | sizeof(vc->card)); |
6f2a2781 | 487 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
cbe12cc6 HV |
488 | vc->device_caps = usbvision->have_tuner ? V4L2_CAP_TUNER : 0; |
489 | if (vdev->vfl_type == VFL_TYPE_GRABBER) | |
490 | vc->device_caps |= V4L2_CAP_VIDEO_CAPTURE | | |
491 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
492 | else | |
493 | vc->device_caps |= V4L2_CAP_RADIO; | |
494 | ||
495 | vc->capabilities = vc->device_caps | V4L2_CAP_VIDEO_CAPTURE | | |
496 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; | |
497 | if (usbvision_device_data[usbvision->dev_model].radio) | |
498 | vc->capabilities |= V4L2_CAP_RADIO; | |
c5f48367 TM |
499 | return 0; |
500 | } | |
501 | ||
6d6a48e5 | 502 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
503 | struct v4l2_input *vi) |
504 | { | |
c170ecf4 | 505 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
506 | int chan; |
507 | ||
223ffe5f | 508 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 509 | return -EINVAL; |
6d6a48e5 | 510 | if (usbvision->have_tuner) |
c5f48367 | 511 | chan = vi->index; |
6d6a48e5 | 512 | else |
52cb0bf2 | 513 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 514 | |
c5f48367 TM |
515 | /* Determine the requested input characteristics |
516 | specific for each usbvision card model */ | |
6d6a48e5 | 517 | switch (chan) { |
c5f48367 | 518 | case 0: |
5490a7cb | 519 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
520 | strcpy(vi->name, "White Video Input"); |
521 | } else { | |
522 | strcpy(vi->name, "Television"); | |
523 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
c5f48367 TM |
524 | vi->tuner = chan; |
525 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 526 | } |
c5f48367 TM |
527 | break; |
528 | case 1: | |
529 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 530 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 531 | strcpy(vi->name, "Green Video Input"); |
6d6a48e5 | 532 | else |
c5f48367 | 533 | strcpy(vi->name, "Composite Video Input"); |
94384014 | 534 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
535 | break; |
536 | case 2: | |
537 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 538 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 539 | strcpy(vi->name, "Yellow Video Input"); |
6d6a48e5 | 540 | else |
c5f48367 | 541 | strcpy(vi->name, "S-Video Input"); |
94384014 | 542 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
543 | break; |
544 | case 3: | |
545 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
546 | strcpy(vi->name, "Red Video Input"); | |
94384014 | 547 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
548 | break; |
549 | } | |
550 | return 0; | |
551 | } | |
483dfdb6 | 552 | |
6d6a48e5 | 553 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 554 | { |
c170ecf4 | 555 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 556 | |
c5f48367 TM |
557 | *input = usbvision->ctl_input; |
558 | return 0; | |
559 | } | |
483dfdb6 | 560 | |
6d6a48e5 | 561 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 562 | { |
c170ecf4 | 563 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 564 | |
f14a2972 | 565 | if (input >= usbvision->video_inputs) |
c5f48367 | 566 | return -EINVAL; |
483dfdb6 | 567 | |
66a17879 | 568 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
569 | usbvision_set_input(usbvision); |
570 | usbvision_set_output(usbvision, | |
571 | usbvision->curwidth, | |
572 | usbvision->curheight); | |
c5f48367 TM |
573 | return 0; |
574 | } | |
483dfdb6 | 575 | |
314527ac | 576 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) |
c5f48367 | 577 | { |
c170ecf4 HV |
578 | struct usb_usbvision *usbvision = video_drvdata(file); |
579 | ||
314527ac | 580 | usbvision->tvnorm_id = id; |
483dfdb6 | 581 | |
8774bed9 | 582 | call_all(usbvision, video, s_std, usbvision->tvnorm_id); |
66a17879 TM |
583 | /* propagate the change to the decoder */ |
584 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 585 | |
c5f48367 TM |
586 | return 0; |
587 | } | |
483dfdb6 | 588 | |
3b8436d9 HV |
589 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) |
590 | { | |
591 | struct usb_usbvision *usbvision = video_drvdata(file); | |
592 | ||
593 | *id = usbvision->tvnorm_id; | |
594 | return 0; | |
595 | } | |
596 | ||
6d6a48e5 | 597 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
598 | struct v4l2_tuner *vt) |
599 | { | |
c170ecf4 | 600 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 601 | |
64d416ec | 602 | if (vt->index) /* Only tuner 0 */ |
c5f48367 | 603 | return -EINVAL; |
64d416ec | 604 | if (vt->type == V4L2_TUNER_RADIO) |
c5f48367 | 605 | strcpy(vt->name, "Radio"); |
64d416ec | 606 | else |
c5f48367 | 607 | strcpy(vt->name, "Television"); |
64d416ec | 608 | |
c5f48367 | 609 | /* Let clients fill in the remainder of this struct */ |
1df79537 | 610 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 611 | |
c5f48367 TM |
612 | return 0; |
613 | } | |
483dfdb6 | 614 | |
6d6a48e5 | 615 | static int vidioc_s_tuner(struct file *file, void *priv, |
2f73c7c5 | 616 | const struct v4l2_tuner *vt) |
c5f48367 | 617 | { |
c170ecf4 | 618 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 619 | |
64d416ec HV |
620 | /* Only one tuner for now */ |
621 | if (vt->index) | |
c5f48367 TM |
622 | return -EINVAL; |
623 | /* let clients handle this */ | |
1df79537 | 624 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 625 | |
c5f48367 TM |
626 | return 0; |
627 | } | |
483dfdb6 | 628 | |
6d6a48e5 | 629 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
630 | struct v4l2_frequency *freq) |
631 | { | |
c170ecf4 | 632 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 633 | |
64d416ec HV |
634 | /* Only one tuner */ |
635 | if (freq->tuner) | |
636 | return -EINVAL; | |
637 | if (freq->type == V4L2_TUNER_RADIO) | |
638 | freq->frequency = usbvision->radio_freq; | |
6d6a48e5 | 639 | else |
64d416ec | 640 | freq->frequency = usbvision->tv_freq; |
483dfdb6 | 641 | |
c5f48367 TM |
642 | return 0; |
643 | } | |
483dfdb6 | 644 | |
6d6a48e5 | 645 | static int vidioc_s_frequency(struct file *file, void *priv, |
b530a447 | 646 | const struct v4l2_frequency *freq) |
c5f48367 | 647 | { |
c170ecf4 | 648 | struct usb_usbvision *usbvision = video_drvdata(file); |
64d416ec | 649 | struct v4l2_frequency new_freq = *freq; |
483dfdb6 | 650 | |
64d416ec HV |
651 | /* Only one tuner for now */ |
652 | if (freq->tuner) | |
c5f48367 | 653 | return -EINVAL; |
483dfdb6 | 654 | |
1df79537 | 655 | call_all(usbvision, tuner, s_frequency, freq); |
64d416ec HV |
656 | call_all(usbvision, tuner, g_frequency, &new_freq); |
657 | if (freq->type == V4L2_TUNER_RADIO) | |
658 | usbvision->radio_freq = new_freq.frequency; | |
659 | else | |
660 | usbvision->tv_freq = new_freq.frequency; | |
483dfdb6 | 661 | |
c5f48367 TM |
662 | return 0; |
663 | } | |
483dfdb6 | 664 | |
6d6a48e5 | 665 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
666 | void *priv, struct v4l2_requestbuffers *vr) |
667 | { | |
c170ecf4 | 668 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
669 | int ret; |
670 | ||
6d6a48e5 | 671 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
672 | |
673 | /* Check input validity: | |
674 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 675 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
676 | return -EINVAL; |
677 | ||
6d6a48e5 HV |
678 | if (usbvision->streaming == stream_on) { |
679 | ret = usbvision_stream_interrupt(usbvision); | |
680 | if (ret) | |
c5f48367 | 681 | return ret; |
483dfdb6 | 682 | } |
c5f48367 TM |
683 | |
684 | usbvision_frames_free(usbvision); | |
685 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 686 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 687 | |
5490a7cb | 688 | usbvision->cur_frame = NULL; |
c5f48367 | 689 | |
483dfdb6 TM |
690 | return 0; |
691 | } | |
692 | ||
6d6a48e5 | 693 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 694 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 695 | { |
c170ecf4 | 696 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
697 | struct usbvision_frame *frame; |
698 | ||
699 | /* FIXME : must control | |
700 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 701 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 702 | return -EINVAL; |
c5f48367 | 703 | /* Updating the corresponding frame state */ |
1b18e7a0 | 704 | vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
c5f48367 | 705 | frame = &usbvision->frame[vb->index]; |
6d6a48e5 | 706 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 707 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 708 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 709 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 710 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
711 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
712 | vb->memory = V4L2_MEMORY_MMAP; | |
713 | ||
6d6a48e5 | 714 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
715 | |
716 | vb->memory = V4L2_MEMORY_MMAP; | |
717 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
718 | vb->length = usbvision->curwidth * |
719 | usbvision->curheight * | |
c5f48367 TM |
720 | usbvision->palette.bytes_per_pixel; |
721 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
722 | vb->sequence = usbvision->frame[vb->index].sequence; | |
723 | return 0; | |
483dfdb6 TM |
724 | } |
725 | ||
6d6a48e5 | 726 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 727 | { |
c170ecf4 | 728 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
729 | struct usbvision_frame *frame; |
730 | unsigned long lock_flags; | |
731 | ||
732 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 733 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 734 | return -EINVAL; |
c5f48367 TM |
735 | |
736 | frame = &usbvision->frame[vb->index]; | |
737 | ||
6d6a48e5 | 738 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 739 | return -EAGAIN; |
c5f48367 TM |
740 | |
741 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
742 | frame->grabstate = frame_state_ready; |
743 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
744 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
745 | ||
746 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
747 | ||
748 | /* set v4l2_format index */ | |
749 | frame->v4l2_format = usbvision->palette; | |
750 | ||
751 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
752 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
753 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
754 | ||
755 | return 0; | |
756 | } | |
757 | ||
6d6a48e5 | 758 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 759 | { |
c170ecf4 | 760 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
761 | int ret; |
762 | struct usbvision_frame *f; | |
763 | unsigned long lock_flags; | |
764 | ||
c5f48367 | 765 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 766 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
767 | return -EINVAL; |
768 | ret = wait_event_interruptible | |
769 | (usbvision->wait_frame, | |
770 | !list_empty(&(usbvision->outqueue))); | |
771 | if (ret) | |
772 | return ret; | |
773 | } | |
774 | ||
775 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
776 | f = list_entry(usbvision->outqueue.next, | |
777 | struct usbvision_frame, frame); | |
778 | list_del(usbvision->outqueue.next); | |
779 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
780 | ||
5490a7cb | 781 | f->grabstate = frame_state_unused; |
c5f48367 TM |
782 | |
783 | vb->memory = V4L2_MEMORY_MMAP; | |
784 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
785 | V4L2_BUF_FLAG_QUEUED | | |
1b18e7a0 SA |
786 | V4L2_BUF_FLAG_DONE | |
787 | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
c5f48367 TM |
788 | vb->index = f->index; |
789 | vb->sequence = f->sequence; | |
790 | vb->timestamp = f->timestamp; | |
791 | vb->field = V4L2_FIELD_NONE; | |
792 | vb->bytesused = f->scanlength; | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
798 | { | |
c170ecf4 | 799 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 800 | |
5490a7cb | 801 | usbvision->streaming = stream_on; |
1df79537 | 802 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
803 | |
804 | return 0; | |
805 | } | |
806 | ||
807 | static int vidioc_streamoff(struct file *file, | |
808 | void *priv, enum v4l2_buf_type type) | |
809 | { | |
c170ecf4 | 810 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
811 | |
812 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
813 | return -EINVAL; | |
814 | ||
6d6a48e5 | 815 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
816 | usbvision_stream_interrupt(usbvision); |
817 | /* Stop all video streamings */ | |
1df79537 | 818 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
819 | } |
820 | usbvision_empty_framequeues(usbvision); | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
6d6a48e5 | 825 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
826 | struct v4l2_fmtdesc *vfd) |
827 | { | |
6d6a48e5 | 828 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 829 | return -EINVAL; |
6d6a48e5 | 830 | strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); |
c5f48367 | 831 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
832 | return 0; |
833 | } | |
834 | ||
6d6a48e5 | 835 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
836 | struct v4l2_format *vf) |
837 | { | |
c170ecf4 | 838 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
839 | vf->fmt.pix.width = usbvision->curwidth; |
840 | vf->fmt.pix.height = usbvision->curheight; | |
841 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
842 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
843 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
844 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
845 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
846 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
6d6a48e5 | 851 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
852 | struct v4l2_format *vf) |
853 | { | |
c170ecf4 | 854 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 855 | int format_idx; |
c5f48367 TM |
856 | |
857 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
858 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
859 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
860 | usbvision_v4l2_format[format_idx].format) { |
861 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
862 | break; |
863 | } | |
864 | } | |
865 | /* robustness */ | |
6d6a48e5 | 866 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 867 | return -EINVAL; |
c5f48367 TM |
868 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
869 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
870 | ||
871 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
872 | usbvision->palette.bytes_per_pixel; | |
873 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
4eeda6fa HV |
874 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
875 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
c5f48367 TM |
876 | |
877 | return 0; | |
878 | } | |
879 | ||
78b526a4 | 880 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
881 | struct v4l2_format *vf) |
882 | { | |
c170ecf4 | 883 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
884 | int ret; |
885 | ||
6d6a48e5 HV |
886 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
887 | if (ret) | |
c5f48367 | 888 | return ret; |
c5f48367 TM |
889 | |
890 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
891 | if (usbvision->streaming == stream_on) { |
892 | ret = usbvision_stream_interrupt(usbvision); | |
893 | if (ret) | |
c5f48367 TM |
894 | return ret; |
895 | } | |
896 | usbvision_frames_free(usbvision); | |
897 | usbvision_empty_framequeues(usbvision); | |
898 | ||
5490a7cb | 899 | usbvision->cur_frame = NULL; |
c5f48367 TM |
900 | |
901 | /* by now we are committed to the new data... */ | |
c5f48367 | 902 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
903 | |
904 | return 0; | |
905 | } | |
483dfdb6 | 906 | |
4d345708 | 907 | static ssize_t usbvision_read(struct file *file, char __user *buf, |
483dfdb6 TM |
908 | size_t count, loff_t *ppos) |
909 | { | |
c170ecf4 | 910 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
911 | int noblock = file->f_flags & O_NONBLOCK; |
912 | unsigned long lock_flags; | |
6d6a48e5 | 913 | int ret, i; |
483dfdb6 TM |
914 | struct usbvision_frame *frame; |
915 | ||
d2db42dd | 916 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 917 | (unsigned long)count, noblock); |
483dfdb6 TM |
918 | |
919 | if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) | |
920 | return -EFAULT; | |
921 | ||
c5f48367 TM |
922 | /* This entry point is compatible with the mmap routines |
923 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
924 | to get frames or call read on the device. */ | |
6d6a48e5 | 925 | if (!usbvision->num_frames) { |
c5f48367 TM |
926 | /* First, allocate some frames to work with |
927 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
928 | usbvision_frames_free(usbvision); |
929 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 930 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
931 | } |
932 | ||
6d6a48e5 | 933 | if (usbvision->streaming != stream_on) { |
6f78e186 | 934 | /* no stream is running, make it running ! */ |
5490a7cb | 935 | usbvision->streaming = stream_on; |
1df79537 | 936 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 937 | } |
483dfdb6 | 938 | |
c5f48367 TM |
939 | /* Then, enqueue as many frames as possible |
940 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 941 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 942 | frame = &usbvision->frame[i]; |
6d6a48e5 | 943 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 944 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
945 | frame->grabstate = frame_state_ready; |
946 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
947 | /* Accumulated in usbvision_parse_data() */ |
948 | frame->scanlength = 0; | |
483dfdb6 TM |
949 | |
950 | /* set v4l2_format index */ | |
951 | frame->v4l2_format = usbvision->palette; | |
952 | ||
953 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
954 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
955 | spin_unlock_irqrestore(&usbvision->queue_lock, |
956 | lock_flags); | |
483dfdb6 TM |
957 | } |
958 | } | |
959 | ||
960 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
961 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 962 | if (noblock) |
483dfdb6 TM |
963 | return -EAGAIN; |
964 | ||
965 | ret = wait_event_interruptible | |
966 | (usbvision->wait_frame, | |
967 | !list_empty(&(usbvision->outqueue))); | |
968 | if (ret) | |
969 | return ret; | |
970 | } | |
971 | ||
972 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
973 | frame = list_entry(usbvision->outqueue.next, | |
974 | struct usbvision_frame, frame); | |
975 | list_del(usbvision->outqueue.next); | |
976 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
977 | ||
978 | /* An error returns an empty frame */ | |
5490a7cb | 979 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
980 | frame->bytes_read = 0; |
981 | return 0; | |
982 | } | |
983 | ||
c5f48367 | 984 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 985 | __func__, |
c5f48367 | 986 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
987 | |
988 | /* copy bytes to user space; we allow for partials reads */ | |
989 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
990 | count = frame->scanlength - frame->bytes_read; | |
991 | ||
6d6a48e5 | 992 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 993 | return -EFAULT; |
483dfdb6 TM |
994 | |
995 | frame->bytes_read += count; | |
c5f48367 | 996 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 997 | __func__, |
c5f48367 | 998 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 999 | |
b295e5c7 MCC |
1000 | #if 1 |
1001 | /* | |
1002 | * FIXME: | |
1003 | * For now, forget the frame if it has not been read in one shot. | |
1004 | */ | |
1005 | frame->bytes_read = 0; | |
1006 | ||
1007 | /* Mark it as available to be used again. */ | |
1008 | frame->grabstate = frame_state_unused; | |
1009 | #else | |
1010 | if (frame->bytes_read >= frame->scanlength) { | |
1011 | /* All data has been read */ | |
483dfdb6 TM |
1012 | frame->bytes_read = 0; |
1013 | ||
1014 | /* Mark it as available to be used again. */ | |
5490a7cb | 1015 | frame->grabstate = frame_state_unused; |
b295e5c7 MCC |
1016 | } |
1017 | #endif | |
483dfdb6 TM |
1018 | |
1019 | return count; | |
1020 | } | |
1021 | ||
4d345708 HV |
1022 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
1023 | size_t count, loff_t *ppos) | |
1024 | { | |
1025 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1026 | int res; | |
1027 | ||
1028 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1029 | return -ERESTARTSYS; | |
1030 | res = usbvision_read(file, buf, count, ppos); | |
1031 | mutex_unlock(&usbvision->v4l2_lock); | |
1032 | return res; | |
1033 | } | |
1034 | ||
1035 | static int usbvision_mmap(struct file *file, struct vm_area_struct *vma) | |
483dfdb6 TM |
1036 | { |
1037 | unsigned long size = vma->vm_end - vma->vm_start, | |
1038 | start = vma->vm_start; | |
1039 | void *pos; | |
1040 | u32 i; | |
c170ecf4 | 1041 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1042 | |
6f78e186 TM |
1043 | PDEBUG(DBG_MMAP, "mmap"); |
1044 | ||
6d6a48e5 | 1045 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1046 | return -EFAULT; |
483dfdb6 TM |
1047 | |
1048 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1049 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1050 | return -EINVAL; |
1051 | } | |
1052 | ||
6f78e186 | 1053 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1054 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1055 | vma->vm_pgoff) | |
483dfdb6 TM |
1056 | break; |
1057 | } | |
6f78e186 | 1058 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1059 | PDEBUG(DBG_MMAP, |
1060 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1061 | return -EINVAL; |
1062 | } | |
1063 | ||
1064 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
314e51b9 | 1065 | vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; |
483dfdb6 TM |
1066 | |
1067 | pos = usbvision->frame[i].data; | |
1068 | while (size > 0) { | |
483dfdb6 | 1069 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1070 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1071 | return -EAGAIN; |
1072 | } | |
1073 | start += PAGE_SIZE; | |
1074 | pos += PAGE_SIZE; | |
1075 | size -= PAGE_SIZE; | |
1076 | } | |
1077 | ||
483dfdb6 TM |
1078 | return 0; |
1079 | } | |
1080 | ||
4d345708 HV |
1081 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1082 | { | |
1083 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1084 | int res; | |
1085 | ||
1086 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1087 | return -ERESTARTSYS; | |
1088 | res = usbvision_mmap(file, vma); | |
1089 | mutex_unlock(&usbvision->v4l2_lock); | |
1090 | return res; | |
1091 | } | |
483dfdb6 TM |
1092 | |
1093 | /* | |
1094 | * Here comes the stuff for radio on usbvision based devices | |
1095 | * | |
1096 | */ | |
bec43661 | 1097 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1098 | { |
c170ecf4 | 1099 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1100 | int err_code = 0; |
483dfdb6 | 1101 | |
d2db42dd | 1102 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1103 | |
4d345708 HV |
1104 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
1105 | return -ERESTARTSYS; | |
fd95870d HV |
1106 | err_code = v4l2_fh_open(file); |
1107 | if (err_code) | |
1108 | goto out; | |
483dfdb6 | 1109 | if (usbvision->user) { |
2aa689dd | 1110 | dev_err(&usbvision->rdev.dev, |
be9ed511 MCC |
1111 | "%s: Someone tried to open an already opened USBVision Radio!\n", |
1112 | __func__); | |
5490a7cb | 1113 | err_code = -EBUSY; |
6d6a48e5 | 1114 | } else { |
2a9f8b5d | 1115 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1116 | err_code = usbvision_set_alternate(usbvision); |
1117 | if (err_code < 0) { | |
1118 | usbvision->last_error = err_code; | |
1119 | err_code = -EBUSY; | |
544e6175 | 1120 | goto out; |
2a9f8b5d TM |
1121 | } |
1122 | ||
52cb0bf2 | 1123 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1124 | usbvision->radio = 1; |
1df79537 | 1125 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1126 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1127 | usbvision->user++; | |
1128 | } | |
544e6175 | 1129 | out: |
4d345708 | 1130 | mutex_unlock(&usbvision->v4l2_lock); |
5490a7cb | 1131 | return err_code; |
483dfdb6 TM |
1132 | } |
1133 | ||
1134 | ||
bec43661 | 1135 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1136 | { |
c170ecf4 | 1137 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
1138 | |
1139 | PDEBUG(DBG_IO, ""); | |
1140 | ||
4d345708 | 1141 | mutex_lock(&usbvision->v4l2_lock); |
2a9f8b5d | 1142 | /* Set packet size to 0 */ |
6d6a48e5 | 1143 | usbvision->iface_alt = 0; |
fd95870d | 1144 | usb_set_interface(usbvision->dev, usbvision->iface, |
5490a7cb | 1145 | usbvision->iface_alt); |
2a9f8b5d | 1146 | |
483dfdb6 | 1147 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1148 | usbvision->radio = 0; |
483dfdb6 TM |
1149 | usbvision->user--; |
1150 | ||
483dfdb6 | 1151 | if (usbvision->remove_pending) { |
d2db42dd | 1152 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
fd95870d | 1153 | v4l2_fh_release(file); |
483dfdb6 | 1154 | usbvision_release(usbvision); |
fd95870d | 1155 | return 0; |
483dfdb6 TM |
1156 | } |
1157 | ||
4d345708 | 1158 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 1159 | PDEBUG(DBG_IO, "success"); |
fd95870d | 1160 | return v4l2_fh_release(file); |
483dfdb6 TM |
1161 | } |
1162 | ||
52cb0bf2 | 1163 | /* Video registration stuff */ |
483dfdb6 | 1164 | |
52cb0bf2 | 1165 | /* Video template */ |
bec43661 | 1166 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1167 | .owner = THIS_MODULE, |
483dfdb6 TM |
1168 | .open = usbvision_v4l2_open, |
1169 | .release = usbvision_v4l2_close, | |
1170 | .read = usbvision_v4l2_read, | |
1171 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1172 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 | 1173 | }; |
a399810c HV |
1174 | |
1175 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1176 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1177 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1178 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1179 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1180 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1181 | .vidioc_reqbufs = vidioc_reqbufs, |
1182 | .vidioc_querybuf = vidioc_querybuf, | |
1183 | .vidioc_qbuf = vidioc_qbuf, | |
1184 | .vidioc_dqbuf = vidioc_dqbuf, | |
1185 | .vidioc_s_std = vidioc_s_std, | |
3b8436d9 | 1186 | .vidioc_g_std = vidioc_g_std, |
c5f48367 TM |
1187 | .vidioc_enum_input = vidioc_enum_input, |
1188 | .vidioc_g_input = vidioc_g_input, | |
1189 | .vidioc_s_input = vidioc_s_input, | |
c5f48367 TM |
1190 | .vidioc_streamon = vidioc_streamon, |
1191 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1192 | .vidioc_g_tuner = vidioc_g_tuner, |
1193 | .vidioc_s_tuner = vidioc_s_tuner, | |
1194 | .vidioc_g_frequency = vidioc_g_frequency, | |
1195 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1196 | .vidioc_log_status = v4l2_ctrl_log_status, |
1197 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1198 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
c5f48367 TM |
1199 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1200 | .vidioc_g_register = vidioc_g_register, | |
1201 | .vidioc_s_register = vidioc_s_register, | |
1202 | #endif | |
a399810c HV |
1203 | }; |
1204 | ||
1205 | static struct video_device usbvision_video_template = { | |
a399810c | 1206 | .fops = &usbvision_fops, |
6d6a48e5 | 1207 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c | 1208 | .name = "usbvision-video", |
2aa689dd | 1209 | .release = video_device_release_empty, |
6d6a48e5 | 1210 | .tvnorms = USBVISION_NORMS, |
483dfdb6 TM |
1211 | }; |
1212 | ||
1213 | ||
52cb0bf2 | 1214 | /* Radio template */ |
bec43661 | 1215 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1216 | .owner = THIS_MODULE, |
483dfdb6 TM |
1217 | .open = usbvision_radio_open, |
1218 | .release = usbvision_radio_close, | |
fd95870d | 1219 | .poll = v4l2_ctrl_poll, |
c627b9d1 | 1220 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1221 | }; |
1222 | ||
a399810c | 1223 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 | 1224 | .vidioc_querycap = vidioc_querycap, |
c5f48367 TM |
1225 | .vidioc_g_tuner = vidioc_g_tuner, |
1226 | .vidioc_s_tuner = vidioc_s_tuner, | |
1227 | .vidioc_g_frequency = vidioc_g_frequency, | |
1228 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1229 | .vidioc_log_status = v4l2_ctrl_log_status, |
1230 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1231 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
a399810c HV |
1232 | }; |
1233 | ||
1234 | static struct video_device usbvision_radio_template = { | |
a399810c | 1235 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1236 | .name = "usbvision-radio", |
2aa689dd | 1237 | .release = video_device_release_empty, |
6d6a48e5 | 1238 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
483dfdb6 TM |
1239 | }; |
1240 | ||
483dfdb6 | 1241 | |
2aa689dd HV |
1242 | static void usbvision_vdev_init(struct usb_usbvision *usbvision, |
1243 | struct video_device *vdev, | |
1244 | const struct video_device *vdev_template, | |
1245 | const char *name) | |
483dfdb6 TM |
1246 | { |
1247 | struct usb_device *usb_dev = usbvision->dev; | |
483dfdb6 TM |
1248 | |
1249 | if (usb_dev == NULL) { | |
be9ed511 MCC |
1250 | dev_err(&usbvision->dev->dev, |
1251 | "%s: usbvision->dev is not set\n", __func__); | |
2aa689dd | 1252 | return; |
483dfdb6 TM |
1253 | } |
1254 | ||
483dfdb6 | 1255 | *vdev = *vdev_template; |
c627b9d1 | 1256 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1257 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1258 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1259 | video_set_drvdata(vdev, usbvision); | |
483dfdb6 TM |
1260 | } |
1261 | ||
52cb0bf2 | 1262 | /* unregister video4linux devices */ |
483dfdb6 TM |
1263 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1264 | { | |
52cb0bf2 | 1265 | /* Radio Device: */ |
2aa689dd | 1266 | if (video_is_registered(&usbvision->rdev)) { |
38c7c036 | 1267 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1268 | video_device_node_name(&usbvision->rdev)); |
1269 | video_unregister_device(&usbvision->rdev); | |
483dfdb6 TM |
1270 | } |
1271 | ||
52cb0bf2 | 1272 | /* Video Device: */ |
2aa689dd | 1273 | if (video_is_registered(&usbvision->vdev)) { |
38c7c036 | 1274 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1275 | video_device_node_name(&usbvision->vdev)); |
1276 | video_unregister_device(&usbvision->vdev); | |
483dfdb6 TM |
1277 | } |
1278 | } | |
1279 | ||
52cb0bf2 | 1280 | /* register video4linux devices */ |
4c62e976 | 1281 | static int usbvision_register_video(struct usb_usbvision *usbvision) |
483dfdb6 | 1282 | { |
2b43665f HV |
1283 | int res = -ENOMEM; |
1284 | ||
52cb0bf2 | 1285 | /* Video Device: */ |
2aa689dd HV |
1286 | usbvision_vdev_init(usbvision, &usbvision->vdev, |
1287 | &usbvision_video_template, "USBVision Video"); | |
64d416ec HV |
1288 | if (!usbvision->have_tuner) { |
1289 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1290 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1291 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1292 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1293 | } | |
2aa689dd | 1294 | if (video_register_device(&usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1295 | goto err_exit; |
38c7c036 | 1296 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
2aa689dd | 1297 | usbvision->nr, video_device_node_name(&usbvision->vdev)); |
483dfdb6 | 1298 | |
52cb0bf2 | 1299 | /* Radio Device: */ |
5490a7cb | 1300 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1301 | /* usbvision has radio */ |
2aa689dd HV |
1302 | usbvision_vdev_init(usbvision, &usbvision->rdev, |
1303 | &usbvision_radio_template, "USBVision Radio"); | |
1304 | if (video_register_device(&usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) | |
483dfdb6 | 1305 | goto err_exit; |
38c7c036 | 1306 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
2aa689dd | 1307 | usbvision->nr, video_device_node_name(&usbvision->rdev)); |
483dfdb6 | 1308 | } |
52cb0bf2 | 1309 | /* all done */ |
483dfdb6 TM |
1310 | return 0; |
1311 | ||
1312 | err_exit: | |
be9ed511 MCC |
1313 | dev_err(&usbvision->dev->dev, |
1314 | "USBVision[%d]: video_register_device() failed\n", | |
1315 | usbvision->nr); | |
483dfdb6 | 1316 | usbvision_unregister_video(usbvision); |
2b43665f | 1317 | return res; |
483dfdb6 TM |
1318 | } |
1319 | ||
1320 | /* | |
1321 | * usbvision_alloc() | |
1322 | * | |
c5f48367 TM |
1323 | * This code allocates the struct usb_usbvision. |
1324 | * It is filled with default values. | |
483dfdb6 TM |
1325 | * |
1326 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1327 | * | |
1328 | */ | |
a878440d JG |
1329 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1330 | struct usb_interface *intf) | |
483dfdb6 TM |
1331 | { |
1332 | struct usb_usbvision *usbvision; | |
1333 | ||
1df79537 HV |
1334 | usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); |
1335 | if (usbvision == NULL) | |
1336 | return NULL; | |
483dfdb6 TM |
1337 | |
1338 | usbvision->dev = dev; | |
a878440d | 1339 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1340 | goto err_free; |
483dfdb6 | 1341 | |
fd95870d HV |
1342 | if (v4l2_ctrl_handler_init(&usbvision->hdl, 4)) |
1343 | goto err_unreg; | |
1344 | usbvision->v4l2_dev.ctrl_handler = &usbvision->hdl; | |
c627b9d1 | 1345 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1346 | |
52cb0bf2 | 1347 | /* prepare control urb for control messages during interrupts */ |
5490a7cb HV |
1348 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
1349 | if (usbvision->ctrl_urb == NULL) | |
1df79537 | 1350 | goto err_unreg; |
5490a7cb | 1351 | init_waitqueue_head(&usbvision->ctrl_urb_wq); |
483dfdb6 | 1352 | |
483dfdb6 TM |
1353 | return usbvision; |
1354 | ||
1df79537 | 1355 | err_unreg: |
fd95870d | 1356 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 HV |
1357 | v4l2_device_unregister(&usbvision->v4l2_dev); |
1358 | err_free: | |
1359 | kfree(usbvision); | |
483dfdb6 TM |
1360 | return NULL; |
1361 | } | |
1362 | ||
1363 | /* | |
1364 | * usbvision_release() | |
1365 | * | |
1366 | * This code does final release of struct usb_usbvision. This happens | |
1367 | * after the device is disconnected -and- all clients closed their files. | |
1368 | * | |
1369 | */ | |
1370 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1371 | { | |
1372 | PDEBUG(DBG_PROBE, ""); | |
1373 | ||
483dfdb6 TM |
1374 | usbvision->initialized = 0; |
1375 | ||
2aa689dd | 1376 | usbvision_remove_sysfs(&usbvision->vdev); |
483dfdb6 | 1377 | usbvision_unregister_video(usbvision); |
090c65b6 | 1378 | kfree(usbvision->alt_max_pkt_size); |
483dfdb6 | 1379 | |
6d6a48e5 | 1380 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1381 | |
fd95870d | 1382 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 | 1383 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1384 | kfree(usbvision); |
1385 | ||
1386 | PDEBUG(DBG_PROBE, "success"); | |
1387 | } | |
1388 | ||
1389 | ||
c5f48367 | 1390 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1391 | |
1392 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1393 | { | |
c5f48367 | 1394 | int model; |
483dfdb6 TM |
1395 | |
1396 | if (usbvision == NULL) | |
1397 | return; | |
1398 | ||
5490a7cb | 1399 | model = usbvision->dev_model; |
52cb0bf2 | 1400 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1401 | |
5490a7cb HV |
1402 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1403 | usbvision->vin_reg2_preset = | |
1404 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1405 | } else { |
5490a7cb | 1406 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1407 | } |
1408 | ||
5490a7cb | 1409 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
5490a7cb | 1410 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 | 1411 | usbvision->ctl_input = 0; |
64d416ec HV |
1412 | usbvision->radio_freq = 87.5 * 16000; |
1413 | usbvision->tv_freq = 400 * 16; | |
483dfdb6 TM |
1414 | |
1415 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 | 1416 | /* first switch off audio */ |
240d57bb OZ |
1417 | if (usbvision_device_data[model].audio_channels > 0) |
1418 | usbvision_audio_off(usbvision); | |
62e25949 HV |
1419 | /* and then power up the tuner */ |
1420 | usbvision_power_on(usbvision); | |
1421 | usbvision_i2c_register(usbvision); | |
483dfdb6 TM |
1422 | } |
1423 | ||
1424 | /* | |
1425 | * usbvision_probe() | |
1426 | * | |
1427 | * This procedure queries device descriptor and accepts the interface | |
1428 | * if it looks like USBVISION video device | |
1429 | * | |
1430 | */ | |
4c62e976 GKH |
1431 | static int usbvision_probe(struct usb_interface *intf, |
1432 | const struct usb_device_id *devid) | |
483dfdb6 | 1433 | { |
2a9f8b5d TM |
1434 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1435 | struct usb_interface *uif; | |
483dfdb6 TM |
1436 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1437 | const struct usb_host_interface *interface; | |
1438 | struct usb_usbvision *usbvision = NULL; | |
1439 | const struct usb_endpoint_descriptor *endpoint; | |
afd270d1 | 1440 | int model, i, ret; |
483dfdb6 TM |
1441 | |
1442 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
659ae56d MCC |
1443 | dev->descriptor.idVendor, |
1444 | dev->descriptor.idProduct, ifnum); | |
2a9f8b5d | 1445 | |
659ae56d | 1446 | model = devid->driver_info; |
6d6a48e5 HV |
1447 | if (model < 0 || model >= usbvision_device_data_size) { |
1448 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
afd270d1 AK |
1449 | ret = -ENODEV; |
1450 | goto err_usb; | |
f8a389db | 1451 | } |
d2db42dd | 1452 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1453 | usbvision_device_data[model].model_string); |
483dfdb6 | 1454 | |
588afcc1 ON |
1455 | /* |
1456 | * this is a security check. | |
1457 | * an exploit using an incorrect bInterfaceNumber is known | |
1458 | */ | |
1459 | if (ifnum >= USB_MAXINTERFACES || !dev->actconfig->interface[ifnum]) | |
1460 | return -ENODEV; | |
1461 | ||
6d6a48e5 | 1462 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1463 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
fa52bd50 | 1464 | else if (ifnum < dev->actconfig->desc.bNumInterfaces) |
483dfdb6 | 1465 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
fa52bd50 VD |
1466 | else { |
1467 | dev_err(&intf->dev, "interface %d is invalid, max is %d\n", | |
1468 | ifnum, dev->actconfig->desc.bNumInterfaces - 1); | |
1469 | ret = -ENODEV; | |
1470 | goto err_usb; | |
1471 | } | |
1472 | ||
1473 | if (interface->desc.bNumEndpoints < 2) { | |
1474 | dev_err(&intf->dev, "interface %d has %d endpoints, but must" | |
1475 | " have minimum 2\n", ifnum, interface->desc.bNumEndpoints); | |
1476 | ret = -ENODEV; | |
1477 | goto err_usb; | |
1478 | } | |
483dfdb6 | 1479 | endpoint = &interface->endpoint[1].desc; |
fa52bd50 | 1480 | |
2230c3c8 | 1481 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1482 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1483 | __func__, ifnum); |
be9ed511 | 1484 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1485 | __func__, endpoint->bmAttributes); |
afd270d1 AK |
1486 | ret = -ENODEV; |
1487 | goto err_usb; | |
483dfdb6 | 1488 | } |
13417982 | 1489 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1490 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1491 | __func__, ifnum); |
afd270d1 AK |
1492 | ret = -ENODEV; |
1493 | goto err_usb; | |
483dfdb6 TM |
1494 | } |
1495 | ||
a878440d JG |
1496 | usbvision = usbvision_alloc(dev, intf); |
1497 | if (usbvision == NULL) { | |
be9ed511 | 1498 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
afd270d1 AK |
1499 | ret = -ENOMEM; |
1500 | goto err_usb; | |
483dfdb6 | 1501 | } |
659ae56d | 1502 | |
6d6a48e5 | 1503 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1504 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1505 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1506 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1507 | else |
5490a7cb | 1508 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1509 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1510 | |
2a9f8b5d TM |
1511 | /* compute alternate max packet sizes */ |
1512 | uif = dev->actconfig->interface[0]; | |
1513 | ||
6d6a48e5 HV |
1514 | usbvision->num_alt = uif->num_altsetting; |
1515 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
1516 | usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); | |
2a9f8b5d | 1517 | if (usbvision->alt_max_pkt_size == NULL) { |
be9ed511 | 1518 | dev_err(&intf->dev, "usbvision: out of memory!\n"); |
afd270d1 AK |
1519 | ret = -ENOMEM; |
1520 | goto err_pkt; | |
2a9f8b5d TM |
1521 | } |
1522 | ||
6d6a48e5 | 1523 | for (i = 0; i < usbvision->num_alt; i++) { |
2a9f8b5d TM |
1524 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. |
1525 | wMaxPacketSize); | |
1526 | usbvision->alt_max_pkt_size[i] = | |
1527 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6d6a48e5 | 1528 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, |
2a9f8b5d TM |
1529 | usbvision->alt_max_pkt_size[i]); |
1530 | } | |
1531 | ||
1532 | ||
483dfdb6 TM |
1533 | usbvision->nr = usbvision_nr++; |
1534 | ||
df3cfa6d HV |
1535 | spin_lock_init(&usbvision->queue_lock); |
1536 | init_waitqueue_head(&usbvision->wait_frame); | |
1537 | init_waitqueue_head(&usbvision->wait_stream); | |
1538 | ||
5490a7cb | 1539 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
6d6a48e5 | 1540 | if (usbvision->have_tuner) |
5490a7cb | 1541 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 | 1542 | |
5490a7cb | 1543 | usbvision->dev_model = model; |
483dfdb6 TM |
1544 | usbvision->remove_pending = 0; |
1545 | usbvision->iface = ifnum; | |
5490a7cb | 1546 | usbvision->iface_alt = 0; |
483dfdb6 | 1547 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1548 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1549 | usbvision->usb_bandwidth = 0; |
1550 | usbvision->user = 0; | |
5490a7cb | 1551 | usbvision->streaming = stream_off; |
483dfdb6 | 1552 | usbvision_configure_video(usbvision); |
8403472f | 1553 | usbvision_register_video(usbvision); |
483dfdb6 | 1554 | |
2aa689dd | 1555 | usbvision_create_sysfs(&usbvision->vdev); |
483dfdb6 TM |
1556 | |
1557 | PDEBUG(DBG_PROBE, "success"); | |
1558 | return 0; | |
afd270d1 AK |
1559 | |
1560 | err_pkt: | |
1561 | usbvision_release(usbvision); | |
1562 | err_usb: | |
1563 | usb_put_dev(dev); | |
1564 | return ret; | |
483dfdb6 TM |
1565 | } |
1566 | ||
1567 | ||
1568 | /* | |
1569 | * usbvision_disconnect() | |
1570 | * | |
1571 | * This procedure stops all driver activity, deallocates interface-private | |
1572 | * structure (pointed by 'ptr') and after that driver should be removable | |
1573 | * with no ill consequences. | |
1574 | * | |
1575 | */ | |
4c62e976 | 1576 | static void usbvision_disconnect(struct usb_interface *intf) |
483dfdb6 | 1577 | { |
aeb506aa | 1578 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1579 | |
1580 | PDEBUG(DBG_PROBE, ""); | |
1581 | ||
1582 | if (usbvision == NULL) { | |
4202066c | 1583 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1584 | return; |
1585 | } | |
483dfdb6 | 1586 | |
c627b9d1 | 1587 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 | 1588 | |
52cb0bf2 | 1589 | /* At this time we ask to cancel outstanding URBs */ |
483dfdb6 TM |
1590 | usbvision_stop_isoc(usbvision); |
1591 | ||
f1ba28c3 | 1592 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
62e25949 | 1593 | usbvision_i2c_unregister(usbvision); |
52cb0bf2 | 1594 | usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ |
483dfdb6 TM |
1595 | |
1596 | usb_put_dev(usbvision->dev); | |
52cb0bf2 | 1597 | usbvision->dev = NULL; /* USB device is no more */ |
483dfdb6 | 1598 | |
c627b9d1 | 1599 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1600 | |
1601 | if (usbvision->user) { | |
c5f48367 | 1602 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1603 | __func__); |
483dfdb6 TM |
1604 | wake_up_interruptible(&usbvision->wait_frame); |
1605 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1606 | } else { |
483dfdb6 TM |
1607 | usbvision_release(usbvision); |
1608 | } | |
1609 | ||
1610 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1611 | } |
1612 | ||
1613 | static struct usb_driver usbvision_driver = { | |
1614 | .name = "usbvision", | |
1615 | .id_table = usbvision_table, | |
1616 | .probe = usbvision_probe, | |
4c62e976 | 1617 | .disconnect = usbvision_disconnect, |
483dfdb6 TM |
1618 | }; |
1619 | ||
483dfdb6 TM |
1620 | /* |
1621 | * usbvision_init() | |
1622 | * | |
1623 | * This code is run to initialize the driver. | |
1624 | * | |
1625 | */ | |
1626 | static int __init usbvision_init(void) | |
1627 | { | |
5490a7cb | 1628 | int err_code; |
483dfdb6 TM |
1629 | |
1630 | PDEBUG(DBG_PROBE, ""); | |
1631 | ||
483dfdb6 TM |
1632 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1633 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1634 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1635 | |
1636 | /* disable planar mode support unless compression enabled */ | |
6d6a48e5 | 1637 | if (isoc_mode != ISOC_MODE_COMPRESS) { |
52cb0bf2 HV |
1638 | /* FIXME : not the right way to set supported flag */ |
1639 | usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ | |
1640 | usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ | |
483dfdb6 TM |
1641 | } |
1642 | ||
5490a7cb | 1643 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1644 | |
5490a7cb | 1645 | if (err_code == 0) { |
de6a1b8e | 1646 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1647 | PDEBUG(DBG_PROBE, "success"); |
1648 | } | |
5490a7cb | 1649 | return err_code; |
483dfdb6 TM |
1650 | } |
1651 | ||
1652 | static void __exit usbvision_exit(void) | |
1653 | { | |
6d6a48e5 | 1654 | PDEBUG(DBG_PROBE, ""); |
483dfdb6 | 1655 | |
6d6a48e5 HV |
1656 | usb_deregister(&usbvision_driver); |
1657 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1658 | } |
1659 | ||
1660 | module_init(usbvision_init); | |
1661 | module_exit(usbvision_exit); |