Commit | Line | Data |
---|---|---|
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 | * | |
483dfdb6 TM |
20 | * Let's call the version 0.... until compression decoding is completely |
21 | * implemented. | |
22 | * | |
23 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
24 | * It was based on USB CPiA driver written by Peter Pregler, | |
25 | * Scott J. Bertin and Johannes Erdfelt | |
26 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
27 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
28 | * Updates to driver completed by Dwaine P. Garden | |
29 | * | |
30 | * | |
31 | * TODO: | |
32 | * - use submit_urb for all setup packets | |
33 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
34 | * nt1003 memory. | |
c5f48367 TM |
35 | * - Add audio on endpoint 3 for nt1004 chip. |
36 | * Seems impossible, needs a codec interface. Which one? | |
483dfdb6 TM |
37 | * - Clean up the driver. |
38 | * - optimization for performance. | |
39 | * - Add Videotext capability (VBI). Working on it..... | |
40 | * - Check audio for other devices | |
41 | * | |
42 | */ | |
43 | ||
44 | #include <linux/kernel.h> | |
483dfdb6 TM |
45 | #include <linux/list.h> |
46 | #include <linux/timer.h> | |
47 | #include <linux/slab.h> | |
48 | #include <linux/mm.h> | |
483dfdb6 | 49 | #include <linux/highmem.h> |
483dfdb6 TM |
50 | #include <linux/vmalloc.h> |
51 | #include <linux/module.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/spinlock.h> | |
6d6a48e5 | 54 | #include <linux/io.h> |
483dfdb6 | 55 | #include <linux/videodev2.h> |
483dfdb6 TM |
56 | #include <linux/i2c.h> |
57 | ||
b5dcee22 | 58 | #include <media/i2c/saa7115.h> |
483dfdb6 | 59 | #include <media/v4l2-common.h> |
35ea11ff | 60 | #include <media/v4l2-ioctl.h> |
fd95870d | 61 | #include <media/v4l2-event.h> |
483dfdb6 | 62 | #include <media/tuner.h> |
483dfdb6 | 63 | |
a1ed551c | 64 | #include <linux/workqueue.h> |
483dfdb6 | 65 | |
483dfdb6 | 66 | #include "usbvision.h" |
659ae56d | 67 | #include "usbvision-cards.h" |
483dfdb6 | 68 | |
85ee7a1d JP |
69 | #define DRIVER_AUTHOR \ |
70 | "Joerg Heckenbach <joerg@heckenbach-aw.de>, " \ | |
71 | "Dwaine Garden <DwaineGarden@rogers.com>" | |
483dfdb6 TM |
72 | #define DRIVER_NAME "usbvision" |
73 | #define DRIVER_ALIAS "USBVision" | |
74 | #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" | |
75 | #define DRIVER_LICENSE "GPL" | |
1990d50b | 76 | #define USBVISION_VERSION_STRING "0.9.11" |
483dfdb6 TM |
77 | |
78 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
79 | ||
80 | ||
483dfdb6 | 81 | #ifdef USBVISION_DEBUG |
df18c319 | 82 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 83 | if (video_debug & (level)) \ |
a482f327 GKH |
84 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
85 | __func__, __LINE__ , ## args); \ | |
df18c319 | 86 | } |
483dfdb6 | 87 | #else |
6d6a48e5 | 88 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
89 | #endif |
90 | ||
6d6a48e5 HV |
91 | #define DBG_IO (1 << 1) |
92 | #define DBG_PROBE (1 << 2) | |
93 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 94 | |
52cb0bf2 | 95 | /* String operations */ |
6d6a48e5 HV |
96 | #define rmspace(str) while (*str == ' ') str++; |
97 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
98 | |
99 | ||
c5f48367 | 100 | /* sequential number of usbvision device */ |
ff699e6b | 101 | static int usbvision_nr; |
483dfdb6 TM |
102 | |
103 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
104 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
105 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
106 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
107 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
108 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
109 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
52cb0bf2 | 110 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
111 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } |
112 | }; | |
113 | ||
c5f48367 | 114 | /* Function prototypes */ |
483dfdb6 TM |
115 | static void usbvision_release(struct usb_usbvision *usbvision); |
116 | ||
c84e6036 | 117 | /* Default initialization of device driver parameters */ |
c5f48367 | 118 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 119 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 120 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 121 | static int video_debug; |
c5f48367 TM |
122 | /* Sequential Number of Video Device */ |
123 | static int video_nr = -1; | |
124 | /* Sequential Number of Radio Device */ | |
125 | static int radio_nr = -1; | |
c5f48367 TM |
126 | |
127 | /* Grab parameters for the device driver */ | |
128 | ||
129 | /* Showing parameters under SYSFS */ | |
5490a7cb | 130 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 131 | module_param(video_debug, int, 0444); |
483dfdb6 TM |
132 | module_param(video_nr, int, 0444); |
133 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 134 | |
5490a7cb | 135 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 136 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
483dfdb6 TM |
137 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
138 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
139 | |
140 | ||
52cb0bf2 | 141 | /* Misc stuff */ |
483dfdb6 TM |
142 | MODULE_AUTHOR(DRIVER_AUTHOR); |
143 | MODULE_DESCRIPTION(DRIVER_DESC); | |
144 | MODULE_LICENSE(DRIVER_LICENSE); | |
a1ed551c MCC |
145 | MODULE_VERSION(USBVISION_VERSION_STRING); |
146 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
147 | |
148 | ||
c5f48367 TM |
149 | /*****************************************************************************/ |
150 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
151 | /* Device information is located at /sys/class/video4linux/video0 */ | |
152 | /* Device parameters information is located at /sys/module/usbvision */ | |
153 | /* Device USB Information is located at */ | |
154 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
155 | /*****************************************************************************/ | |
483dfdb6 | 156 | |
483dfdb6 TM |
157 | #define YES_NO(x) ((x) ? "Yes" : "No") |
158 | ||
54bd5b66 | 159 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 160 | { |
03c6bdfc | 161 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
162 | return video_get_drvdata(vdev); |
163 | } | |
164 | ||
54bd5b66 KS |
165 | static ssize_t show_version(struct device *cd, |
166 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
167 | { |
168 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
169 | } | |
54bd5b66 | 170 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 171 | |
54bd5b66 KS |
172 | static ssize_t show_model(struct device *cd, |
173 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 174 | { |
03c6bdfc | 175 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 176 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 177 | return sprintf(buf, "%s\n", |
5490a7cb | 178 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 179 | } |
54bd5b66 | 180 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 181 | |
54bd5b66 KS |
182 | static ssize_t show_hue(struct device *cd, |
183 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 184 | { |
03c6bdfc | 185 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 186 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
187 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
188 | V4L2_CID_HUE)); | |
189 | ||
190 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 191 | } |
54bd5b66 | 192 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 193 | |
54bd5b66 KS |
194 | static ssize_t show_contrast(struct device *cd, |
195 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 196 | { |
03c6bdfc | 197 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 198 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
199 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
200 | V4L2_CID_CONTRAST)); | |
201 | ||
202 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 203 | } |
54bd5b66 | 204 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 205 | |
54bd5b66 KS |
206 | static ssize_t show_brightness(struct device *cd, |
207 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 208 | { |
03c6bdfc | 209 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 210 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
211 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
212 | V4L2_CID_BRIGHTNESS)); | |
213 | ||
214 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 215 | } |
54bd5b66 | 216 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 217 | |
54bd5b66 KS |
218 | static ssize_t show_saturation(struct device *cd, |
219 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 220 | { |
03c6bdfc | 221 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 222 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
223 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
224 | V4L2_CID_SATURATION)); | |
225 | ||
226 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 227 | } |
54bd5b66 | 228 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 229 | |
54bd5b66 KS |
230 | static ssize_t show_streaming(struct device *cd, |
231 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 232 | { |
03c6bdfc | 233 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 234 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 235 | return sprintf(buf, "%s\n", |
6d6a48e5 | 236 | YES_NO(usbvision->streaming == stream_on ? 1 : 0)); |
483dfdb6 | 237 | } |
54bd5b66 | 238 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 239 | |
54bd5b66 KS |
240 | static ssize_t show_compression(struct device *cd, |
241 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 242 | { |
03c6bdfc | 243 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 244 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 245 | return sprintf(buf, "%s\n", |
6d6a48e5 | 246 | YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); |
483dfdb6 | 247 | } |
54bd5b66 | 248 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 249 | |
54bd5b66 KS |
250 | static ssize_t show_device_bridge(struct device *cd, |
251 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 252 | { |
03c6bdfc | 253 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 254 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 255 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 256 | } |
54bd5b66 | 257 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
258 | |
259 | static void usbvision_create_sysfs(struct video_device *vdev) | |
260 | { | |
261 | int res; | |
6d6a48e5 | 262 | |
ed00b41d DG |
263 | if (!vdev) |
264 | return; | |
265 | do { | |
22a04f10 | 266 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 267 | if (res < 0) |
ed00b41d | 268 | break; |
22a04f10 | 269 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 270 | if (res < 0) |
ed00b41d | 271 | break; |
22a04f10 | 272 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 273 | if (res < 0) |
ed00b41d | 274 | break; |
22a04f10 | 275 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 276 | if (res < 0) |
ed00b41d | 277 | break; |
22a04f10 | 278 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 279 | if (res < 0) |
ed00b41d | 280 | break; |
22a04f10 | 281 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 282 | if (res < 0) |
ed00b41d | 283 | break; |
22a04f10 | 284 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 285 | if (res < 0) |
ed00b41d | 286 | break; |
22a04f10 | 287 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 288 | if (res < 0) |
ed00b41d | 289 | break; |
22a04f10 | 290 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 291 | if (res >= 0) |
ed00b41d DG |
292 | return; |
293 | } while (0); | |
294 | ||
be9ed511 | 295 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
296 | } |
297 | ||
298 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
299 | { | |
300 | if (vdev) { | |
22a04f10 HV |
301 | device_remove_file(&vdev->dev, &dev_attr_version); |
302 | device_remove_file(&vdev->dev, &dev_attr_model); | |
303 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
304 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
305 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
306 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
307 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
308 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
309 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
310 | } |
311 | } | |
312 | ||
483dfdb6 TM |
313 | /* |
314 | * usbvision_open() | |
315 | * | |
316 | * This is part of Video 4 Linux API. The driver can be opened by one | |
317 | * client only (checks internal counter 'usbvision->user'). The procedure | |
318 | * then allocates buffers needed for video processing. | |
319 | * | |
320 | */ | |
bec43661 | 321 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 322 | { |
c170ecf4 | 323 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 324 | int err_code = 0; |
483dfdb6 TM |
325 | |
326 | PDEBUG(DBG_IO, "open"); | |
327 | ||
4d345708 HV |
328 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
329 | return -ERESTARTSYS; | |
483dfdb6 | 330 | |
62e25949 | 331 | if (usbvision->user) { |
5490a7cb | 332 | err_code = -EBUSY; |
62e25949 | 333 | } else { |
fd95870d HV |
334 | err_code = v4l2_fh_open(file); |
335 | if (err_code) | |
336 | goto unlock; | |
337 | ||
6f78e186 | 338 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 339 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 340 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
341 | /* Allocate intermediate decompression buffers |
342 | only if needed */ | |
5490a7cb | 343 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 344 | } |
5490a7cb | 345 | if (err_code) { |
483dfdb6 | 346 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 347 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
348 | usbvision_decompress_free(usbvision); |
349 | } | |
350 | } | |
351 | ||
352 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 353 | if (!err_code) { |
483dfdb6 TM |
354 | /* Send init sequence only once, it's large! */ |
355 | if (!usbvision->initialized) { | |
356 | int setup_ok = 0; | |
6d6a48e5 | 357 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
358 | if (setup_ok) |
359 | usbvision->initialized = 1; | |
360 | else | |
5490a7cb | 361 | err_code = -EBUSY; |
483dfdb6 TM |
362 | } |
363 | ||
5490a7cb | 364 | if (!err_code) { |
483dfdb6 | 365 | usbvision_begin_streaming(usbvision); |
5490a7cb | 366 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 367 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 368 | usbvision_muxsel(usbvision, 0); |
62e25949 HV |
369 | |
370 | /* prepare queues */ | |
371 | usbvision_empty_framequeues(usbvision); | |
483dfdb6 | 372 | usbvision->user++; |
483dfdb6 | 373 | } |
483dfdb6 TM |
374 | } |
375 | ||
fd95870d | 376 | unlock: |
4d345708 | 377 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
378 | |
379 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 380 | return err_code; |
483dfdb6 TM |
381 | } |
382 | ||
383 | /* | |
384 | * usbvision_v4l2_close() | |
385 | * | |
386 | * This is part of Video 4 Linux API. The procedure | |
387 | * stops streaming and deallocates all buffers that were earlier | |
388 | * allocated in usbvision_v4l2_open(). | |
389 | * | |
390 | */ | |
bec43661 | 391 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 392 | { |
c170ecf4 | 393 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
394 | |
395 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 | 396 | |
4d345708 | 397 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
398 | usbvision_audio_off(usbvision); |
399 | usbvision_restart_isoc(usbvision); | |
400 | usbvision_stop_isoc(usbvision); | |
401 | ||
402 | usbvision_decompress_free(usbvision); | |
38284ba3 | 403 | usbvision_frames_free(usbvision); |
6f78e186 | 404 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 405 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
406 | |
407 | usbvision->user--; | |
e2c84ccb | 408 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 409 | |
483dfdb6 | 410 | if (usbvision->remove_pending) { |
d2db42dd | 411 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 | 412 | usbvision_release(usbvision); |
470a9147 | 413 | return 0; |
483dfdb6 TM |
414 | } |
415 | ||
416 | PDEBUG(DBG_IO, "success"); | |
fd95870d | 417 | return v4l2_fh_release(file); |
483dfdb6 TM |
418 | } |
419 | ||
420 | ||
421 | /* | |
422 | * usbvision_ioctl() | |
423 | * | |
424 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
425 | * | |
426 | */ | |
c5f48367 | 427 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 428 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 429 | struct v4l2_dbg_register *reg) |
483dfdb6 | 430 | { |
c170ecf4 | 431 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 432 | int err_code; |
483dfdb6 | 433 | |
c5f48367 | 434 | /* NT100x has a 8-bit register space */ |
5490a7cb HV |
435 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
436 | if (err_code < 0) { | |
2aa689dd | 437 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 438 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", |
5490a7cb HV |
439 | __func__, err_code); |
440 | return err_code; | |
c5f48367 | 441 | } |
5490a7cb | 442 | reg->val = err_code; |
aecde8b5 | 443 | reg->size = 1; |
c5f48367 TM |
444 | return 0; |
445 | } | |
483dfdb6 | 446 | |
6d6a48e5 | 447 | static int vidioc_s_register(struct file *file, void *priv, |
977ba3b1 | 448 | const struct v4l2_dbg_register *reg) |
c5f48367 | 449 | { |
c170ecf4 | 450 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 451 | int err_code; |
62d50add | 452 | |
c5f48367 | 453 | /* NT100x has a 8-bit register space */ |
6d6a48e5 | 454 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 455 | if (err_code < 0) { |
2aa689dd | 456 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 457 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", |
5490a7cb HV |
458 | __func__, err_code); |
459 | return err_code; | |
c5f48367 TM |
460 | } |
461 | return 0; | |
462 | } | |
483dfdb6 | 463 | #endif |
c5f48367 | 464 | |
6d6a48e5 | 465 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
466 | struct v4l2_capability *vc) |
467 | { | |
c170ecf4 | 468 | struct usb_usbvision *usbvision = video_drvdata(file); |
cbe12cc6 | 469 | struct video_device *vdev = video_devdata(file); |
c5f48367 TM |
470 | |
471 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
472 | strlcpy(vc->card, | |
5490a7cb | 473 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 474 | sizeof(vc->card)); |
6f2a2781 | 475 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
cbe12cc6 HV |
476 | vc->device_caps = usbvision->have_tuner ? V4L2_CAP_TUNER : 0; |
477 | if (vdev->vfl_type == VFL_TYPE_GRABBER) | |
478 | vc->device_caps |= V4L2_CAP_VIDEO_CAPTURE | | |
479 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
480 | else | |
481 | vc->device_caps |= V4L2_CAP_RADIO; | |
482 | ||
483 | vc->capabilities = vc->device_caps | V4L2_CAP_VIDEO_CAPTURE | | |
484 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; | |
485 | if (usbvision_device_data[usbvision->dev_model].radio) | |
486 | vc->capabilities |= V4L2_CAP_RADIO; | |
c5f48367 TM |
487 | return 0; |
488 | } | |
489 | ||
6d6a48e5 | 490 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
491 | struct v4l2_input *vi) |
492 | { | |
c170ecf4 | 493 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
494 | int chan; |
495 | ||
223ffe5f | 496 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 497 | return -EINVAL; |
6d6a48e5 | 498 | if (usbvision->have_tuner) |
c5f48367 | 499 | chan = vi->index; |
6d6a48e5 | 500 | else |
52cb0bf2 | 501 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 502 | |
c5f48367 TM |
503 | /* Determine the requested input characteristics |
504 | specific for each usbvision card model */ | |
6d6a48e5 | 505 | switch (chan) { |
c5f48367 | 506 | case 0: |
5490a7cb | 507 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
508 | strcpy(vi->name, "White Video Input"); |
509 | } else { | |
510 | strcpy(vi->name, "Television"); | |
511 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
c5f48367 TM |
512 | vi->tuner = chan; |
513 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 514 | } |
c5f48367 TM |
515 | break; |
516 | case 1: | |
517 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 518 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 519 | strcpy(vi->name, "Green Video Input"); |
6d6a48e5 | 520 | else |
c5f48367 | 521 | strcpy(vi->name, "Composite Video Input"); |
94384014 | 522 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
523 | break; |
524 | case 2: | |
525 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 526 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 527 | strcpy(vi->name, "Yellow Video Input"); |
6d6a48e5 | 528 | else |
c5f48367 | 529 | strcpy(vi->name, "S-Video Input"); |
94384014 | 530 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
531 | break; |
532 | case 3: | |
533 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
534 | strcpy(vi->name, "Red Video Input"); | |
94384014 | 535 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
536 | break; |
537 | } | |
538 | return 0; | |
539 | } | |
483dfdb6 | 540 | |
6d6a48e5 | 541 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 542 | { |
c170ecf4 | 543 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 544 | |
c5f48367 TM |
545 | *input = usbvision->ctl_input; |
546 | return 0; | |
547 | } | |
483dfdb6 | 548 | |
6d6a48e5 | 549 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 550 | { |
c170ecf4 | 551 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 552 | |
f14a2972 | 553 | if (input >= usbvision->video_inputs) |
c5f48367 | 554 | return -EINVAL; |
483dfdb6 | 555 | |
66a17879 | 556 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
557 | usbvision_set_input(usbvision); |
558 | usbvision_set_output(usbvision, | |
559 | usbvision->curwidth, | |
560 | usbvision->curheight); | |
c5f48367 TM |
561 | return 0; |
562 | } | |
483dfdb6 | 563 | |
314527ac | 564 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) |
c5f48367 | 565 | { |
c170ecf4 HV |
566 | struct usb_usbvision *usbvision = video_drvdata(file); |
567 | ||
314527ac | 568 | usbvision->tvnorm_id = id; |
483dfdb6 | 569 | |
8774bed9 | 570 | call_all(usbvision, video, s_std, usbvision->tvnorm_id); |
66a17879 TM |
571 | /* propagate the change to the decoder */ |
572 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 573 | |
c5f48367 TM |
574 | return 0; |
575 | } | |
483dfdb6 | 576 | |
3b8436d9 HV |
577 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) |
578 | { | |
579 | struct usb_usbvision *usbvision = video_drvdata(file); | |
580 | ||
581 | *id = usbvision->tvnorm_id; | |
582 | return 0; | |
583 | } | |
584 | ||
6d6a48e5 | 585 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
586 | struct v4l2_tuner *vt) |
587 | { | |
c170ecf4 | 588 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 589 | |
64d416ec | 590 | if (vt->index) /* Only tuner 0 */ |
c5f48367 | 591 | return -EINVAL; |
64d416ec | 592 | if (vt->type == V4L2_TUNER_RADIO) |
c5f48367 | 593 | strcpy(vt->name, "Radio"); |
64d416ec | 594 | else |
c5f48367 | 595 | strcpy(vt->name, "Television"); |
64d416ec | 596 | |
c5f48367 | 597 | /* Let clients fill in the remainder of this struct */ |
1df79537 | 598 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 599 | |
c5f48367 TM |
600 | return 0; |
601 | } | |
483dfdb6 | 602 | |
6d6a48e5 | 603 | static int vidioc_s_tuner(struct file *file, void *priv, |
2f73c7c5 | 604 | const struct v4l2_tuner *vt) |
c5f48367 | 605 | { |
c170ecf4 | 606 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 607 | |
64d416ec HV |
608 | /* Only one tuner for now */ |
609 | if (vt->index) | |
c5f48367 TM |
610 | return -EINVAL; |
611 | /* let clients handle this */ | |
1df79537 | 612 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 613 | |
c5f48367 TM |
614 | return 0; |
615 | } | |
483dfdb6 | 616 | |
6d6a48e5 | 617 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
618 | struct v4l2_frequency *freq) |
619 | { | |
c170ecf4 | 620 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 621 | |
64d416ec HV |
622 | /* Only one tuner */ |
623 | if (freq->tuner) | |
624 | return -EINVAL; | |
625 | if (freq->type == V4L2_TUNER_RADIO) | |
626 | freq->frequency = usbvision->radio_freq; | |
6d6a48e5 | 627 | else |
64d416ec | 628 | freq->frequency = usbvision->tv_freq; |
483dfdb6 | 629 | |
c5f48367 TM |
630 | return 0; |
631 | } | |
483dfdb6 | 632 | |
6d6a48e5 | 633 | static int vidioc_s_frequency(struct file *file, void *priv, |
b530a447 | 634 | const struct v4l2_frequency *freq) |
c5f48367 | 635 | { |
c170ecf4 | 636 | struct usb_usbvision *usbvision = video_drvdata(file); |
64d416ec | 637 | struct v4l2_frequency new_freq = *freq; |
483dfdb6 | 638 | |
64d416ec HV |
639 | /* Only one tuner for now */ |
640 | if (freq->tuner) | |
c5f48367 | 641 | return -EINVAL; |
483dfdb6 | 642 | |
1df79537 | 643 | call_all(usbvision, tuner, s_frequency, freq); |
64d416ec HV |
644 | call_all(usbvision, tuner, g_frequency, &new_freq); |
645 | if (freq->type == V4L2_TUNER_RADIO) | |
646 | usbvision->radio_freq = new_freq.frequency; | |
647 | else | |
648 | usbvision->tv_freq = new_freq.frequency; | |
483dfdb6 | 649 | |
c5f48367 TM |
650 | return 0; |
651 | } | |
483dfdb6 | 652 | |
6d6a48e5 | 653 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
654 | void *priv, struct v4l2_requestbuffers *vr) |
655 | { | |
c170ecf4 | 656 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
657 | int ret; |
658 | ||
6d6a48e5 | 659 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
660 | |
661 | /* Check input validity: | |
662 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 663 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
664 | return -EINVAL; |
665 | ||
6d6a48e5 HV |
666 | if (usbvision->streaming == stream_on) { |
667 | ret = usbvision_stream_interrupt(usbvision); | |
668 | if (ret) | |
c5f48367 | 669 | return ret; |
483dfdb6 | 670 | } |
c5f48367 TM |
671 | |
672 | usbvision_frames_free(usbvision); | |
673 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 674 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 675 | |
5490a7cb | 676 | usbvision->cur_frame = NULL; |
c5f48367 | 677 | |
483dfdb6 TM |
678 | return 0; |
679 | } | |
680 | ||
6d6a48e5 | 681 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 682 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 683 | { |
c170ecf4 | 684 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
685 | struct usbvision_frame *frame; |
686 | ||
687 | /* FIXME : must control | |
688 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 689 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 690 | return -EINVAL; |
c5f48367 | 691 | /* Updating the corresponding frame state */ |
1b18e7a0 | 692 | vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
c5f48367 | 693 | frame = &usbvision->frame[vb->index]; |
6d6a48e5 | 694 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 695 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 696 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 697 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 698 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
699 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
700 | vb->memory = V4L2_MEMORY_MMAP; | |
701 | ||
6d6a48e5 | 702 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
703 | |
704 | vb->memory = V4L2_MEMORY_MMAP; | |
705 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
706 | vb->length = usbvision->curwidth * |
707 | usbvision->curheight * | |
c5f48367 TM |
708 | usbvision->palette.bytes_per_pixel; |
709 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
710 | vb->sequence = usbvision->frame[vb->index].sequence; | |
711 | return 0; | |
483dfdb6 TM |
712 | } |
713 | ||
6d6a48e5 | 714 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 715 | { |
c170ecf4 | 716 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
717 | struct usbvision_frame *frame; |
718 | unsigned long lock_flags; | |
719 | ||
720 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 721 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 722 | return -EINVAL; |
c5f48367 TM |
723 | |
724 | frame = &usbvision->frame[vb->index]; | |
725 | ||
6d6a48e5 | 726 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 727 | return -EAGAIN; |
c5f48367 TM |
728 | |
729 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
730 | frame->grabstate = frame_state_ready; |
731 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
732 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
733 | ||
734 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
735 | ||
736 | /* set v4l2_format index */ | |
737 | frame->v4l2_format = usbvision->palette; | |
738 | ||
739 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
740 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
741 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
6d6a48e5 | 746 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 747 | { |
c170ecf4 | 748 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
749 | int ret; |
750 | struct usbvision_frame *f; | |
751 | unsigned long lock_flags; | |
752 | ||
c5f48367 | 753 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 754 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
755 | return -EINVAL; |
756 | ret = wait_event_interruptible | |
757 | (usbvision->wait_frame, | |
758 | !list_empty(&(usbvision->outqueue))); | |
759 | if (ret) | |
760 | return ret; | |
761 | } | |
762 | ||
763 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
764 | f = list_entry(usbvision->outqueue.next, | |
765 | struct usbvision_frame, frame); | |
766 | list_del(usbvision->outqueue.next); | |
767 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
768 | ||
5490a7cb | 769 | f->grabstate = frame_state_unused; |
c5f48367 TM |
770 | |
771 | vb->memory = V4L2_MEMORY_MMAP; | |
772 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
773 | V4L2_BUF_FLAG_QUEUED | | |
1b18e7a0 SA |
774 | V4L2_BUF_FLAG_DONE | |
775 | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
c5f48367 TM |
776 | vb->index = f->index; |
777 | vb->sequence = f->sequence; | |
778 | vb->timestamp = f->timestamp; | |
779 | vb->field = V4L2_FIELD_NONE; | |
780 | vb->bytesused = f->scanlength; | |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
785 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
786 | { | |
c170ecf4 | 787 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 788 | |
5490a7cb | 789 | usbvision->streaming = stream_on; |
1df79537 | 790 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
791 | |
792 | return 0; | |
793 | } | |
794 | ||
795 | static int vidioc_streamoff(struct file *file, | |
796 | void *priv, enum v4l2_buf_type type) | |
797 | { | |
c170ecf4 | 798 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
799 | |
800 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
801 | return -EINVAL; | |
802 | ||
6d6a48e5 | 803 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
804 | usbvision_stream_interrupt(usbvision); |
805 | /* Stop all video streamings */ | |
1df79537 | 806 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
807 | } |
808 | usbvision_empty_framequeues(usbvision); | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
6d6a48e5 | 813 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
814 | struct v4l2_fmtdesc *vfd) |
815 | { | |
6d6a48e5 | 816 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 817 | return -EINVAL; |
6d6a48e5 | 818 | strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); |
c5f48367 | 819 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
820 | return 0; |
821 | } | |
822 | ||
6d6a48e5 | 823 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
824 | struct v4l2_format *vf) |
825 | { | |
c170ecf4 | 826 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
827 | vf->fmt.pix.width = usbvision->curwidth; |
828 | vf->fmt.pix.height = usbvision->curheight; | |
829 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
830 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
831 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
832 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
833 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
834 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
835 | ||
836 | return 0; | |
837 | } | |
838 | ||
6d6a48e5 | 839 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
840 | struct v4l2_format *vf) |
841 | { | |
c170ecf4 | 842 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 843 | int format_idx; |
c5f48367 TM |
844 | |
845 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
846 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
847 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
848 | usbvision_v4l2_format[format_idx].format) { |
849 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
850 | break; |
851 | } | |
852 | } | |
853 | /* robustness */ | |
6d6a48e5 | 854 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 855 | return -EINVAL; |
c5f48367 TM |
856 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
857 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
858 | ||
859 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
860 | usbvision->palette.bytes_per_pixel; | |
861 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
4eeda6fa HV |
862 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
863 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
c5f48367 TM |
864 | |
865 | return 0; | |
866 | } | |
867 | ||
78b526a4 | 868 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
869 | struct v4l2_format *vf) |
870 | { | |
c170ecf4 | 871 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
872 | int ret; |
873 | ||
6d6a48e5 HV |
874 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
875 | if (ret) | |
c5f48367 | 876 | return ret; |
c5f48367 TM |
877 | |
878 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
879 | if (usbvision->streaming == stream_on) { |
880 | ret = usbvision_stream_interrupt(usbvision); | |
881 | if (ret) | |
c5f48367 TM |
882 | return ret; |
883 | } | |
884 | usbvision_frames_free(usbvision); | |
885 | usbvision_empty_framequeues(usbvision); | |
886 | ||
5490a7cb | 887 | usbvision->cur_frame = NULL; |
c5f48367 TM |
888 | |
889 | /* by now we are committed to the new data... */ | |
c5f48367 | 890 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
891 | |
892 | return 0; | |
893 | } | |
483dfdb6 | 894 | |
4d345708 | 895 | static ssize_t usbvision_read(struct file *file, char __user *buf, |
483dfdb6 TM |
896 | size_t count, loff_t *ppos) |
897 | { | |
c170ecf4 | 898 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
899 | int noblock = file->f_flags & O_NONBLOCK; |
900 | unsigned long lock_flags; | |
6d6a48e5 | 901 | int ret, i; |
483dfdb6 TM |
902 | struct usbvision_frame *frame; |
903 | ||
d2db42dd | 904 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 905 | (unsigned long)count, noblock); |
483dfdb6 | 906 | |
c4cdcf9f | 907 | if (!USBVISION_IS_OPERATIONAL(usbvision) || !buf) |
483dfdb6 TM |
908 | return -EFAULT; |
909 | ||
c5f48367 TM |
910 | /* This entry point is compatible with the mmap routines |
911 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
912 | to get frames or call read on the device. */ | |
6d6a48e5 | 913 | if (!usbvision->num_frames) { |
c5f48367 TM |
914 | /* First, allocate some frames to work with |
915 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
916 | usbvision_frames_free(usbvision); |
917 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 918 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
919 | } |
920 | ||
6d6a48e5 | 921 | if (usbvision->streaming != stream_on) { |
6f78e186 | 922 | /* no stream is running, make it running ! */ |
5490a7cb | 923 | usbvision->streaming = stream_on; |
1df79537 | 924 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 925 | } |
483dfdb6 | 926 | |
c5f48367 TM |
927 | /* Then, enqueue as many frames as possible |
928 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 929 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 930 | frame = &usbvision->frame[i]; |
6d6a48e5 | 931 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 932 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
933 | frame->grabstate = frame_state_ready; |
934 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
935 | /* Accumulated in usbvision_parse_data() */ |
936 | frame->scanlength = 0; | |
483dfdb6 TM |
937 | |
938 | /* set v4l2_format index */ | |
939 | frame->v4l2_format = usbvision->palette; | |
940 | ||
941 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
942 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
943 | spin_unlock_irqrestore(&usbvision->queue_lock, |
944 | lock_flags); | |
483dfdb6 TM |
945 | } |
946 | } | |
947 | ||
948 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
949 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 950 | if (noblock) |
483dfdb6 TM |
951 | return -EAGAIN; |
952 | ||
953 | ret = wait_event_interruptible | |
954 | (usbvision->wait_frame, | |
955 | !list_empty(&(usbvision->outqueue))); | |
956 | if (ret) | |
957 | return ret; | |
958 | } | |
959 | ||
960 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
961 | frame = list_entry(usbvision->outqueue.next, | |
962 | struct usbvision_frame, frame); | |
963 | list_del(usbvision->outqueue.next); | |
964 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
965 | ||
966 | /* An error returns an empty frame */ | |
5490a7cb | 967 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
968 | frame->bytes_read = 0; |
969 | return 0; | |
970 | } | |
971 | ||
c5f48367 | 972 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 973 | __func__, |
c5f48367 | 974 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
975 | |
976 | /* copy bytes to user space; we allow for partials reads */ | |
977 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
978 | count = frame->scanlength - frame->bytes_read; | |
979 | ||
6d6a48e5 | 980 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 981 | return -EFAULT; |
483dfdb6 TM |
982 | |
983 | frame->bytes_read += count; | |
c5f48367 | 984 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 985 | __func__, |
c5f48367 | 986 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 987 | |
b295e5c7 MCC |
988 | #if 1 |
989 | /* | |
990 | * FIXME: | |
991 | * For now, forget the frame if it has not been read in one shot. | |
992 | */ | |
993 | frame->bytes_read = 0; | |
994 | ||
995 | /* Mark it as available to be used again. */ | |
996 | frame->grabstate = frame_state_unused; | |
997 | #else | |
998 | if (frame->bytes_read >= frame->scanlength) { | |
999 | /* All data has been read */ | |
483dfdb6 TM |
1000 | frame->bytes_read = 0; |
1001 | ||
1002 | /* Mark it as available to be used again. */ | |
5490a7cb | 1003 | frame->grabstate = frame_state_unused; |
b295e5c7 MCC |
1004 | } |
1005 | #endif | |
483dfdb6 TM |
1006 | |
1007 | return count; | |
1008 | } | |
1009 | ||
4d345708 HV |
1010 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
1011 | size_t count, loff_t *ppos) | |
1012 | { | |
1013 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1014 | int res; | |
1015 | ||
1016 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1017 | return -ERESTARTSYS; | |
1018 | res = usbvision_read(file, buf, count, ppos); | |
1019 | mutex_unlock(&usbvision->v4l2_lock); | |
1020 | return res; | |
1021 | } | |
1022 | ||
1023 | static int usbvision_mmap(struct file *file, struct vm_area_struct *vma) | |
483dfdb6 TM |
1024 | { |
1025 | unsigned long size = vma->vm_end - vma->vm_start, | |
1026 | start = vma->vm_start; | |
1027 | void *pos; | |
1028 | u32 i; | |
c170ecf4 | 1029 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1030 | |
6f78e186 TM |
1031 | PDEBUG(DBG_MMAP, "mmap"); |
1032 | ||
6d6a48e5 | 1033 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1034 | return -EFAULT; |
483dfdb6 TM |
1035 | |
1036 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1037 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1038 | return -EINVAL; |
1039 | } | |
1040 | ||
6f78e186 | 1041 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1042 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1043 | vma->vm_pgoff) | |
483dfdb6 TM |
1044 | break; |
1045 | } | |
6f78e186 | 1046 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1047 | PDEBUG(DBG_MMAP, |
1048 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1049 | return -EINVAL; |
1050 | } | |
1051 | ||
1052 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
314e51b9 | 1053 | vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; |
483dfdb6 TM |
1054 | |
1055 | pos = usbvision->frame[i].data; | |
1056 | while (size > 0) { | |
483dfdb6 | 1057 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1058 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1059 | return -EAGAIN; |
1060 | } | |
1061 | start += PAGE_SIZE; | |
1062 | pos += PAGE_SIZE; | |
1063 | size -= PAGE_SIZE; | |
1064 | } | |
1065 | ||
483dfdb6 TM |
1066 | return 0; |
1067 | } | |
1068 | ||
4d345708 HV |
1069 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1070 | { | |
1071 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1072 | int res; | |
1073 | ||
1074 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1075 | return -ERESTARTSYS; | |
1076 | res = usbvision_mmap(file, vma); | |
1077 | mutex_unlock(&usbvision->v4l2_lock); | |
1078 | return res; | |
1079 | } | |
483dfdb6 TM |
1080 | |
1081 | /* | |
1082 | * Here comes the stuff for radio on usbvision based devices | |
1083 | * | |
1084 | */ | |
bec43661 | 1085 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1086 | { |
c170ecf4 | 1087 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1088 | int err_code = 0; |
483dfdb6 | 1089 | |
d2db42dd | 1090 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1091 | |
4d345708 HV |
1092 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
1093 | return -ERESTARTSYS; | |
fd95870d HV |
1094 | err_code = v4l2_fh_open(file); |
1095 | if (err_code) | |
1096 | goto out; | |
483dfdb6 | 1097 | if (usbvision->user) { |
2aa689dd | 1098 | dev_err(&usbvision->rdev.dev, |
be9ed511 MCC |
1099 | "%s: Someone tried to open an already opened USBVision Radio!\n", |
1100 | __func__); | |
5490a7cb | 1101 | err_code = -EBUSY; |
6d6a48e5 | 1102 | } else { |
2a9f8b5d | 1103 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1104 | err_code = usbvision_set_alternate(usbvision); |
1105 | if (err_code < 0) { | |
1106 | usbvision->last_error = err_code; | |
1107 | err_code = -EBUSY; | |
544e6175 | 1108 | goto out; |
2a9f8b5d TM |
1109 | } |
1110 | ||
52cb0bf2 | 1111 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1112 | usbvision->radio = 1; |
1df79537 | 1113 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1114 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1115 | usbvision->user++; | |
1116 | } | |
544e6175 | 1117 | out: |
4d345708 | 1118 | mutex_unlock(&usbvision->v4l2_lock); |
5490a7cb | 1119 | return err_code; |
483dfdb6 TM |
1120 | } |
1121 | ||
1122 | ||
bec43661 | 1123 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1124 | { |
c170ecf4 | 1125 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
1126 | |
1127 | PDEBUG(DBG_IO, ""); | |
1128 | ||
4d345708 | 1129 | mutex_lock(&usbvision->v4l2_lock); |
2a9f8b5d | 1130 | /* Set packet size to 0 */ |
6d6a48e5 | 1131 | usbvision->iface_alt = 0; |
fd95870d | 1132 | usb_set_interface(usbvision->dev, usbvision->iface, |
5490a7cb | 1133 | usbvision->iface_alt); |
2a9f8b5d | 1134 | |
483dfdb6 | 1135 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1136 | usbvision->radio = 0; |
483dfdb6 | 1137 | usbvision->user--; |
5ce625a4 | 1138 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 1139 | |
483dfdb6 | 1140 | if (usbvision->remove_pending) { |
d2db42dd | 1141 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
fd95870d | 1142 | v4l2_fh_release(file); |
483dfdb6 | 1143 | usbvision_release(usbvision); |
fd95870d | 1144 | return 0; |
483dfdb6 TM |
1145 | } |
1146 | ||
483dfdb6 | 1147 | PDEBUG(DBG_IO, "success"); |
fd95870d | 1148 | return v4l2_fh_release(file); |
483dfdb6 TM |
1149 | } |
1150 | ||
52cb0bf2 | 1151 | /* Video registration stuff */ |
483dfdb6 | 1152 | |
52cb0bf2 | 1153 | /* Video template */ |
bec43661 | 1154 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1155 | .owner = THIS_MODULE, |
483dfdb6 TM |
1156 | .open = usbvision_v4l2_open, |
1157 | .release = usbvision_v4l2_close, | |
1158 | .read = usbvision_v4l2_read, | |
1159 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1160 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 | 1161 | }; |
a399810c HV |
1162 | |
1163 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1164 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1165 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1166 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1167 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1168 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1169 | .vidioc_reqbufs = vidioc_reqbufs, |
1170 | .vidioc_querybuf = vidioc_querybuf, | |
1171 | .vidioc_qbuf = vidioc_qbuf, | |
1172 | .vidioc_dqbuf = vidioc_dqbuf, | |
1173 | .vidioc_s_std = vidioc_s_std, | |
3b8436d9 | 1174 | .vidioc_g_std = vidioc_g_std, |
c5f48367 TM |
1175 | .vidioc_enum_input = vidioc_enum_input, |
1176 | .vidioc_g_input = vidioc_g_input, | |
1177 | .vidioc_s_input = vidioc_s_input, | |
c5f48367 TM |
1178 | .vidioc_streamon = vidioc_streamon, |
1179 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1180 | .vidioc_g_tuner = vidioc_g_tuner, |
1181 | .vidioc_s_tuner = vidioc_s_tuner, | |
1182 | .vidioc_g_frequency = vidioc_g_frequency, | |
1183 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1184 | .vidioc_log_status = v4l2_ctrl_log_status, |
1185 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1186 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
c5f48367 TM |
1187 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1188 | .vidioc_g_register = vidioc_g_register, | |
1189 | .vidioc_s_register = vidioc_s_register, | |
1190 | #endif | |
a399810c HV |
1191 | }; |
1192 | ||
1193 | static struct video_device usbvision_video_template = { | |
a399810c | 1194 | .fops = &usbvision_fops, |
6d6a48e5 | 1195 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c | 1196 | .name = "usbvision-video", |
2aa689dd | 1197 | .release = video_device_release_empty, |
6d6a48e5 | 1198 | .tvnorms = USBVISION_NORMS, |
483dfdb6 TM |
1199 | }; |
1200 | ||
1201 | ||
52cb0bf2 | 1202 | /* Radio template */ |
bec43661 | 1203 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1204 | .owner = THIS_MODULE, |
483dfdb6 TM |
1205 | .open = usbvision_radio_open, |
1206 | .release = usbvision_radio_close, | |
fd95870d | 1207 | .poll = v4l2_ctrl_poll, |
c627b9d1 | 1208 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1209 | }; |
1210 | ||
a399810c | 1211 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 | 1212 | .vidioc_querycap = vidioc_querycap, |
c5f48367 TM |
1213 | .vidioc_g_tuner = vidioc_g_tuner, |
1214 | .vidioc_s_tuner = vidioc_s_tuner, | |
1215 | .vidioc_g_frequency = vidioc_g_frequency, | |
1216 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1217 | .vidioc_log_status = v4l2_ctrl_log_status, |
1218 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1219 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
a399810c HV |
1220 | }; |
1221 | ||
1222 | static struct video_device usbvision_radio_template = { | |
a399810c | 1223 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1224 | .name = "usbvision-radio", |
2aa689dd | 1225 | .release = video_device_release_empty, |
6d6a48e5 | 1226 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
483dfdb6 TM |
1227 | }; |
1228 | ||
483dfdb6 | 1229 | |
2aa689dd HV |
1230 | static void usbvision_vdev_init(struct usb_usbvision *usbvision, |
1231 | struct video_device *vdev, | |
1232 | const struct video_device *vdev_template, | |
1233 | const char *name) | |
483dfdb6 TM |
1234 | { |
1235 | struct usb_device *usb_dev = usbvision->dev; | |
483dfdb6 | 1236 | |
c4cdcf9f | 1237 | if (!usb_dev) { |
be9ed511 MCC |
1238 | dev_err(&usbvision->dev->dev, |
1239 | "%s: usbvision->dev is not set\n", __func__); | |
2aa689dd | 1240 | return; |
483dfdb6 TM |
1241 | } |
1242 | ||
483dfdb6 | 1243 | *vdev = *vdev_template; |
c627b9d1 | 1244 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1245 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1246 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1247 | video_set_drvdata(vdev, usbvision); | |
483dfdb6 TM |
1248 | } |
1249 | ||
52cb0bf2 | 1250 | /* unregister video4linux devices */ |
483dfdb6 TM |
1251 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1252 | { | |
52cb0bf2 | 1253 | /* Radio Device: */ |
2aa689dd | 1254 | if (video_is_registered(&usbvision->rdev)) { |
38c7c036 | 1255 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1256 | video_device_node_name(&usbvision->rdev)); |
1257 | video_unregister_device(&usbvision->rdev); | |
483dfdb6 TM |
1258 | } |
1259 | ||
52cb0bf2 | 1260 | /* Video Device: */ |
2aa689dd | 1261 | if (video_is_registered(&usbvision->vdev)) { |
38c7c036 | 1262 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1263 | video_device_node_name(&usbvision->vdev)); |
1264 | video_unregister_device(&usbvision->vdev); | |
483dfdb6 TM |
1265 | } |
1266 | } | |
1267 | ||
52cb0bf2 | 1268 | /* register video4linux devices */ |
4c62e976 | 1269 | static int usbvision_register_video(struct usb_usbvision *usbvision) |
483dfdb6 | 1270 | { |
2b43665f HV |
1271 | int res = -ENOMEM; |
1272 | ||
52cb0bf2 | 1273 | /* Video Device: */ |
2aa689dd HV |
1274 | usbvision_vdev_init(usbvision, &usbvision->vdev, |
1275 | &usbvision_video_template, "USBVision Video"); | |
64d416ec HV |
1276 | if (!usbvision->have_tuner) { |
1277 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1278 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1279 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1280 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1281 | } | |
2aa689dd | 1282 | if (video_register_device(&usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1283 | goto err_exit; |
38c7c036 | 1284 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
2aa689dd | 1285 | usbvision->nr, video_device_node_name(&usbvision->vdev)); |
483dfdb6 | 1286 | |
52cb0bf2 | 1287 | /* Radio Device: */ |
5490a7cb | 1288 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1289 | /* usbvision has radio */ |
2aa689dd HV |
1290 | usbvision_vdev_init(usbvision, &usbvision->rdev, |
1291 | &usbvision_radio_template, "USBVision Radio"); | |
1292 | if (video_register_device(&usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) | |
483dfdb6 | 1293 | goto err_exit; |
38c7c036 | 1294 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
2aa689dd | 1295 | usbvision->nr, video_device_node_name(&usbvision->rdev)); |
483dfdb6 | 1296 | } |
52cb0bf2 | 1297 | /* all done */ |
483dfdb6 TM |
1298 | return 0; |
1299 | ||
1300 | err_exit: | |
be9ed511 MCC |
1301 | dev_err(&usbvision->dev->dev, |
1302 | "USBVision[%d]: video_register_device() failed\n", | |
1303 | usbvision->nr); | |
483dfdb6 | 1304 | usbvision_unregister_video(usbvision); |
2b43665f | 1305 | return res; |
483dfdb6 TM |
1306 | } |
1307 | ||
1308 | /* | |
1309 | * usbvision_alloc() | |
1310 | * | |
c5f48367 TM |
1311 | * This code allocates the struct usb_usbvision. |
1312 | * It is filled with default values. | |
483dfdb6 TM |
1313 | * |
1314 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1315 | * | |
1316 | */ | |
a878440d JG |
1317 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1318 | struct usb_interface *intf) | |
483dfdb6 TM |
1319 | { |
1320 | struct usb_usbvision *usbvision; | |
1321 | ||
1fbfd8c1 | 1322 | usbvision = kzalloc(sizeof(*usbvision), GFP_KERNEL); |
c4cdcf9f | 1323 | if (!usbvision) |
1df79537 | 1324 | return NULL; |
483dfdb6 TM |
1325 | |
1326 | usbvision->dev = dev; | |
a878440d | 1327 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1328 | goto err_free; |
483dfdb6 | 1329 | |
fd95870d HV |
1330 | if (v4l2_ctrl_handler_init(&usbvision->hdl, 4)) |
1331 | goto err_unreg; | |
1332 | usbvision->v4l2_dev.ctrl_handler = &usbvision->hdl; | |
c627b9d1 | 1333 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1334 | |
52cb0bf2 | 1335 | /* prepare control urb for control messages during interrupts */ |
5490a7cb | 1336 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
c4cdcf9f | 1337 | if (!usbvision->ctrl_urb) |
1df79537 | 1338 | goto err_unreg; |
483dfdb6 | 1339 | |
483dfdb6 TM |
1340 | return usbvision; |
1341 | ||
1df79537 | 1342 | err_unreg: |
fd95870d | 1343 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 HV |
1344 | v4l2_device_unregister(&usbvision->v4l2_dev); |
1345 | err_free: | |
1346 | kfree(usbvision); | |
483dfdb6 TM |
1347 | return NULL; |
1348 | } | |
1349 | ||
1350 | /* | |
1351 | * usbvision_release() | |
1352 | * | |
1353 | * This code does final release of struct usb_usbvision. This happens | |
1354 | * after the device is disconnected -and- all clients closed their files. | |
1355 | * | |
1356 | */ | |
1357 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1358 | { | |
1359 | PDEBUG(DBG_PROBE, ""); | |
1360 | ||
483dfdb6 TM |
1361 | usbvision->initialized = 0; |
1362 | ||
2aa689dd | 1363 | usbvision_remove_sysfs(&usbvision->vdev); |
483dfdb6 | 1364 | usbvision_unregister_video(usbvision); |
090c65b6 | 1365 | kfree(usbvision->alt_max_pkt_size); |
483dfdb6 | 1366 | |
6d6a48e5 | 1367 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1368 | |
fd95870d | 1369 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 | 1370 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1371 | kfree(usbvision); |
1372 | ||
1373 | PDEBUG(DBG_PROBE, "success"); | |
1374 | } | |
1375 | ||
1376 | ||
c5f48367 | 1377 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1378 | |
1379 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1380 | { | |
c5f48367 | 1381 | int model; |
483dfdb6 | 1382 | |
c4cdcf9f | 1383 | if (!usbvision) |
483dfdb6 TM |
1384 | return; |
1385 | ||
5490a7cb | 1386 | model = usbvision->dev_model; |
52cb0bf2 | 1387 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1388 | |
5490a7cb HV |
1389 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1390 | usbvision->vin_reg2_preset = | |
1391 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1392 | } else { |
5490a7cb | 1393 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1394 | } |
1395 | ||
5490a7cb | 1396 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
5490a7cb | 1397 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 | 1398 | usbvision->ctl_input = 0; |
64d416ec HV |
1399 | usbvision->radio_freq = 87.5 * 16000; |
1400 | usbvision->tv_freq = 400 * 16; | |
483dfdb6 TM |
1401 | |
1402 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 | 1403 | /* first switch off audio */ |
240d57bb OZ |
1404 | if (usbvision_device_data[model].audio_channels > 0) |
1405 | usbvision_audio_off(usbvision); | |
62e25949 HV |
1406 | /* and then power up the tuner */ |
1407 | usbvision_power_on(usbvision); | |
1408 | usbvision_i2c_register(usbvision); | |
483dfdb6 TM |
1409 | } |
1410 | ||
1411 | /* | |
1412 | * usbvision_probe() | |
1413 | * | |
1414 | * This procedure queries device descriptor and accepts the interface | |
1415 | * if it looks like USBVISION video device | |
1416 | * | |
1417 | */ | |
4c62e976 GKH |
1418 | static int usbvision_probe(struct usb_interface *intf, |
1419 | const struct usb_device_id *devid) | |
483dfdb6 | 1420 | { |
2a9f8b5d TM |
1421 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1422 | struct usb_interface *uif; | |
483dfdb6 TM |
1423 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1424 | const struct usb_host_interface *interface; | |
1425 | struct usb_usbvision *usbvision = NULL; | |
1426 | const struct usb_endpoint_descriptor *endpoint; | |
afd270d1 | 1427 | int model, i, ret; |
483dfdb6 TM |
1428 | |
1429 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
ab64a589 JH |
1430 | le16_to_cpu(dev->descriptor.idVendor), |
1431 | le16_to_cpu(dev->descriptor.idProduct), ifnum); | |
2a9f8b5d | 1432 | |
659ae56d | 1433 | model = devid->driver_info; |
6d6a48e5 HV |
1434 | if (model < 0 || model >= usbvision_device_data_size) { |
1435 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
afd270d1 AK |
1436 | ret = -ENODEV; |
1437 | goto err_usb; | |
f8a389db | 1438 | } |
d2db42dd | 1439 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1440 | usbvision_device_data[model].model_string); |
483dfdb6 | 1441 | |
6d6a48e5 | 1442 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1443 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
fa52bd50 | 1444 | else if (ifnum < dev->actconfig->desc.bNumInterfaces) |
483dfdb6 | 1445 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
fa52bd50 VD |
1446 | else { |
1447 | dev_err(&intf->dev, "interface %d is invalid, max is %d\n", | |
1448 | ifnum, dev->actconfig->desc.bNumInterfaces - 1); | |
1449 | ret = -ENODEV; | |
1450 | goto err_usb; | |
1451 | } | |
1452 | ||
1453 | if (interface->desc.bNumEndpoints < 2) { | |
02c539d3 MCC |
1454 | dev_err(&intf->dev, "interface %d has %d endpoints, but must have minimum 2\n", |
1455 | ifnum, interface->desc.bNumEndpoints); | |
fa52bd50 VD |
1456 | ret = -ENODEV; |
1457 | goto err_usb; | |
1458 | } | |
483dfdb6 | 1459 | endpoint = &interface->endpoint[1].desc; |
fa52bd50 | 1460 | |
2230c3c8 | 1461 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1462 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1463 | __func__, ifnum); |
be9ed511 | 1464 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1465 | __func__, endpoint->bmAttributes); |
afd270d1 AK |
1466 | ret = -ENODEV; |
1467 | goto err_usb; | |
483dfdb6 | 1468 | } |
13417982 | 1469 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1470 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1471 | __func__, ifnum); |
afd270d1 AK |
1472 | ret = -ENODEV; |
1473 | goto err_usb; | |
483dfdb6 TM |
1474 | } |
1475 | ||
a878440d | 1476 | usbvision = usbvision_alloc(dev, intf); |
c4cdcf9f | 1477 | if (!usbvision) { |
be9ed511 | 1478 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
afd270d1 AK |
1479 | ret = -ENOMEM; |
1480 | goto err_usb; | |
483dfdb6 | 1481 | } |
659ae56d | 1482 | |
6d6a48e5 | 1483 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1484 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1485 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1486 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1487 | else |
5490a7cb | 1488 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1489 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1490 | |
2a9f8b5d TM |
1491 | /* compute alternate max packet sizes */ |
1492 | uif = dev->actconfig->interface[0]; | |
1493 | ||
6d6a48e5 HV |
1494 | usbvision->num_alt = uif->num_altsetting; |
1495 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
1496 | usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); | |
c4cdcf9f | 1497 | if (!usbvision->alt_max_pkt_size) { |
afd270d1 AK |
1498 | ret = -ENOMEM; |
1499 | goto err_pkt; | |
2a9f8b5d TM |
1500 | } |
1501 | ||
6d6a48e5 | 1502 | for (i = 0; i < usbvision->num_alt; i++) { |
eacb975b JH |
1503 | u16 tmp; |
1504 | ||
1505 | if (uif->altsetting[i].desc.bNumEndpoints < 2) { | |
1506 | ret = -ENODEV; | |
1507 | goto err_pkt; | |
1508 | } | |
1509 | ||
1510 | tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
2a9f8b5d TM |
1511 | wMaxPacketSize); |
1512 | usbvision->alt_max_pkt_size[i] = | |
1513 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6d6a48e5 | 1514 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, |
2a9f8b5d TM |
1515 | usbvision->alt_max_pkt_size[i]); |
1516 | } | |
1517 | ||
1518 | ||
483dfdb6 TM |
1519 | usbvision->nr = usbvision_nr++; |
1520 | ||
df3cfa6d HV |
1521 | spin_lock_init(&usbvision->queue_lock); |
1522 | init_waitqueue_head(&usbvision->wait_frame); | |
1523 | init_waitqueue_head(&usbvision->wait_stream); | |
1524 | ||
5490a7cb | 1525 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
6d6a48e5 | 1526 | if (usbvision->have_tuner) |
5490a7cb | 1527 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 | 1528 | |
5490a7cb | 1529 | usbvision->dev_model = model; |
483dfdb6 TM |
1530 | usbvision->remove_pending = 0; |
1531 | usbvision->iface = ifnum; | |
5490a7cb | 1532 | usbvision->iface_alt = 0; |
483dfdb6 | 1533 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1534 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1535 | usbvision->usb_bandwidth = 0; |
1536 | usbvision->user = 0; | |
5490a7cb | 1537 | usbvision->streaming = stream_off; |
483dfdb6 | 1538 | usbvision_configure_video(usbvision); |
8403472f | 1539 | usbvision_register_video(usbvision); |
483dfdb6 | 1540 | |
2aa689dd | 1541 | usbvision_create_sysfs(&usbvision->vdev); |
483dfdb6 TM |
1542 | |
1543 | PDEBUG(DBG_PROBE, "success"); | |
1544 | return 0; | |
afd270d1 AK |
1545 | |
1546 | err_pkt: | |
1547 | usbvision_release(usbvision); | |
1548 | err_usb: | |
1549 | usb_put_dev(dev); | |
1550 | return ret; | |
483dfdb6 TM |
1551 | } |
1552 | ||
1553 | ||
1554 | /* | |
1555 | * usbvision_disconnect() | |
1556 | * | |
1557 | * This procedure stops all driver activity, deallocates interface-private | |
1558 | * structure (pointed by 'ptr') and after that driver should be removable | |
1559 | * with no ill consequences. | |
1560 | * | |
1561 | */ | |
4c62e976 | 1562 | static void usbvision_disconnect(struct usb_interface *intf) |
483dfdb6 | 1563 | { |
aeb506aa | 1564 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1565 | |
1566 | PDEBUG(DBG_PROBE, ""); | |
1567 | ||
c4cdcf9f | 1568 | if (!usbvision) { |
4202066c | 1569 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1570 | return; |
1571 | } | |
483dfdb6 | 1572 | |
c627b9d1 | 1573 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 | 1574 | |
52cb0bf2 | 1575 | /* At this time we ask to cancel outstanding URBs */ |
483dfdb6 TM |
1576 | usbvision_stop_isoc(usbvision); |
1577 | ||
f1ba28c3 | 1578 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
62e25949 | 1579 | usbvision_i2c_unregister(usbvision); |
52cb0bf2 | 1580 | usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ |
483dfdb6 TM |
1581 | |
1582 | usb_put_dev(usbvision->dev); | |
52cb0bf2 | 1583 | usbvision->dev = NULL; /* USB device is no more */ |
483dfdb6 | 1584 | |
c627b9d1 | 1585 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1586 | |
1587 | if (usbvision->user) { | |
c5f48367 | 1588 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1589 | __func__); |
483dfdb6 TM |
1590 | wake_up_interruptible(&usbvision->wait_frame); |
1591 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1592 | } else { |
483dfdb6 TM |
1593 | usbvision_release(usbvision); |
1594 | } | |
1595 | ||
1596 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1597 | } |
1598 | ||
1599 | static struct usb_driver usbvision_driver = { | |
1600 | .name = "usbvision", | |
1601 | .id_table = usbvision_table, | |
1602 | .probe = usbvision_probe, | |
4c62e976 | 1603 | .disconnect = usbvision_disconnect, |
483dfdb6 TM |
1604 | }; |
1605 | ||
483dfdb6 TM |
1606 | /* |
1607 | * usbvision_init() | |
1608 | * | |
1609 | * This code is run to initialize the driver. | |
1610 | * | |
1611 | */ | |
1612 | static int __init usbvision_init(void) | |
1613 | { | |
5490a7cb | 1614 | int err_code; |
483dfdb6 TM |
1615 | |
1616 | PDEBUG(DBG_PROBE, ""); | |
1617 | ||
483dfdb6 TM |
1618 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1619 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1620 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1621 | |
1622 | /* disable planar mode support unless compression enabled */ | |
6d6a48e5 | 1623 | if (isoc_mode != ISOC_MODE_COMPRESS) { |
52cb0bf2 HV |
1624 | /* FIXME : not the right way to set supported flag */ |
1625 | usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ | |
1626 | usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ | |
483dfdb6 TM |
1627 | } |
1628 | ||
5490a7cb | 1629 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1630 | |
5490a7cb | 1631 | if (err_code == 0) { |
de6a1b8e | 1632 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1633 | PDEBUG(DBG_PROBE, "success"); |
1634 | } | |
5490a7cb | 1635 | return err_code; |
483dfdb6 TM |
1636 | } |
1637 | ||
1638 | static void __exit usbvision_exit(void) | |
1639 | { | |
6d6a48e5 | 1640 | PDEBUG(DBG_PROBE, ""); |
483dfdb6 | 1641 | |
6d6a48e5 HV |
1642 | usb_deregister(&usbvision_driver); |
1643 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1644 | } |
1645 | ||
1646 | module_init(usbvision_init); | |
1647 | module_exit(usbvision_exit); |