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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 | * | |
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" | |
1990d50b | 75 | #define USBVISION_VERSION_STRING "0.9.11" |
483dfdb6 TM |
76 | |
77 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
78 | ||
79 | ||
483dfdb6 | 80 | #ifdef USBVISION_DEBUG |
df18c319 | 81 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 82 | if (video_debug & (level)) \ |
a482f327 GKH |
83 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
84 | __func__, __LINE__ , ## args); \ | |
df18c319 | 85 | } |
483dfdb6 | 86 | #else |
6d6a48e5 | 87 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
88 | #endif |
89 | ||
6d6a48e5 HV |
90 | #define DBG_IO (1 << 1) |
91 | #define DBG_PROBE (1 << 2) | |
92 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 93 | |
52cb0bf2 | 94 | /* String operations */ |
6d6a48e5 HV |
95 | #define rmspace(str) while (*str == ' ') str++; |
96 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
97 | |
98 | ||
c5f48367 | 99 | /* sequential number of usbvision device */ |
ff699e6b | 100 | static int usbvision_nr; |
483dfdb6 TM |
101 | |
102 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
103 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
104 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
105 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
106 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
107 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
108 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
52cb0bf2 | 109 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
110 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } |
111 | }; | |
112 | ||
c5f48367 | 113 | /* Function prototypes */ |
483dfdb6 TM |
114 | static void usbvision_release(struct usb_usbvision *usbvision); |
115 | ||
c84e6036 | 116 | /* Default initialization of device driver parameters */ |
c5f48367 | 117 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 118 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 119 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 120 | static int video_debug; |
c5f48367 TM |
121 | /* Sequential Number of Video Device */ |
122 | static int video_nr = -1; | |
123 | /* Sequential Number of Radio Device */ | |
124 | static int radio_nr = -1; | |
c5f48367 TM |
125 | |
126 | /* Grab parameters for the device driver */ | |
127 | ||
128 | /* Showing parameters under SYSFS */ | |
5490a7cb | 129 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 130 | module_param(video_debug, int, 0444); |
483dfdb6 TM |
131 | module_param(video_nr, int, 0444); |
132 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 133 | |
5490a7cb | 134 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 135 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
483dfdb6 TM |
136 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
137 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
138 | |
139 | ||
52cb0bf2 | 140 | /* Misc stuff */ |
483dfdb6 TM |
141 | MODULE_AUTHOR(DRIVER_AUTHOR); |
142 | MODULE_DESCRIPTION(DRIVER_DESC); | |
b6277584 | 143 | MODULE_LICENSE("GPL"); |
a1ed551c MCC |
144 | MODULE_VERSION(USBVISION_VERSION_STRING); |
145 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
146 | |
147 | ||
c5f48367 TM |
148 | /*****************************************************************************/ |
149 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
150 | /* Device information is located at /sys/class/video4linux/video0 */ | |
151 | /* Device parameters information is located at /sys/module/usbvision */ | |
152 | /* Device USB Information is located at */ | |
153 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
154 | /*****************************************************************************/ | |
483dfdb6 | 155 | |
483dfdb6 TM |
156 | #define YES_NO(x) ((x) ? "Yes" : "No") |
157 | ||
54bd5b66 | 158 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 159 | { |
03c6bdfc | 160 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
161 | return video_get_drvdata(vdev); |
162 | } | |
163 | ||
54bd5b66 KS |
164 | static ssize_t show_version(struct device *cd, |
165 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
166 | { |
167 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
168 | } | |
54bd5b66 | 169 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 170 | |
54bd5b66 KS |
171 | static ssize_t show_model(struct device *cd, |
172 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 173 | { |
03c6bdfc | 174 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 175 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 176 | return sprintf(buf, "%s\n", |
5490a7cb | 177 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 178 | } |
54bd5b66 | 179 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 180 | |
54bd5b66 KS |
181 | static ssize_t show_hue(struct device *cd, |
182 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 183 | { |
03c6bdfc | 184 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 185 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
186 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
187 | V4L2_CID_HUE)); | |
188 | ||
189 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 190 | } |
54bd5b66 | 191 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 192 | |
54bd5b66 KS |
193 | static ssize_t show_contrast(struct device *cd, |
194 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 195 | { |
03c6bdfc | 196 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 197 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
198 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
199 | V4L2_CID_CONTRAST)); | |
200 | ||
201 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 202 | } |
54bd5b66 | 203 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 204 | |
54bd5b66 KS |
205 | static ssize_t show_brightness(struct device *cd, |
206 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 207 | { |
03c6bdfc | 208 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 209 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
210 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
211 | V4L2_CID_BRIGHTNESS)); | |
212 | ||
213 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 214 | } |
54bd5b66 | 215 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 216 | |
54bd5b66 KS |
217 | static ssize_t show_saturation(struct device *cd, |
218 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 219 | { |
03c6bdfc | 220 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 221 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
222 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
223 | V4L2_CID_SATURATION)); | |
224 | ||
225 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 226 | } |
54bd5b66 | 227 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 228 | |
54bd5b66 KS |
229 | static ssize_t show_streaming(struct device *cd, |
230 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 231 | { |
03c6bdfc | 232 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 233 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 234 | return sprintf(buf, "%s\n", |
6d6a48e5 | 235 | YES_NO(usbvision->streaming == stream_on ? 1 : 0)); |
483dfdb6 | 236 | } |
54bd5b66 | 237 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 238 | |
54bd5b66 KS |
239 | static ssize_t show_compression(struct device *cd, |
240 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 241 | { |
03c6bdfc | 242 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 243 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 244 | return sprintf(buf, "%s\n", |
6d6a48e5 | 245 | YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); |
483dfdb6 | 246 | } |
54bd5b66 | 247 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 248 | |
54bd5b66 KS |
249 | static ssize_t show_device_bridge(struct device *cd, |
250 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 251 | { |
03c6bdfc | 252 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 253 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 254 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 255 | } |
54bd5b66 | 256 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
257 | |
258 | static void usbvision_create_sysfs(struct video_device *vdev) | |
259 | { | |
260 | int res; | |
6d6a48e5 | 261 | |
ed00b41d DG |
262 | if (!vdev) |
263 | return; | |
264 | do { | |
22a04f10 | 265 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 266 | if (res < 0) |
ed00b41d | 267 | break; |
22a04f10 | 268 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 269 | if (res < 0) |
ed00b41d | 270 | break; |
22a04f10 | 271 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 272 | if (res < 0) |
ed00b41d | 273 | break; |
22a04f10 | 274 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 275 | if (res < 0) |
ed00b41d | 276 | break; |
22a04f10 | 277 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 278 | if (res < 0) |
ed00b41d | 279 | break; |
22a04f10 | 280 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 281 | if (res < 0) |
ed00b41d | 282 | break; |
22a04f10 | 283 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 284 | if (res < 0) |
ed00b41d | 285 | break; |
22a04f10 | 286 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 287 | if (res < 0) |
ed00b41d | 288 | break; |
22a04f10 | 289 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 290 | if (res >= 0) |
ed00b41d DG |
291 | return; |
292 | } while (0); | |
293 | ||
be9ed511 | 294 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
295 | } |
296 | ||
297 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
298 | { | |
299 | if (vdev) { | |
22a04f10 HV |
300 | device_remove_file(&vdev->dev, &dev_attr_version); |
301 | device_remove_file(&vdev->dev, &dev_attr_model); | |
302 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
303 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
304 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
305 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
306 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
307 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
308 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
309 | } |
310 | } | |
311 | ||
483dfdb6 TM |
312 | /* |
313 | * usbvision_open() | |
314 | * | |
315 | * This is part of Video 4 Linux API. The driver can be opened by one | |
316 | * client only (checks internal counter 'usbvision->user'). The procedure | |
317 | * then allocates buffers needed for video processing. | |
318 | * | |
319 | */ | |
bec43661 | 320 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 321 | { |
c170ecf4 | 322 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 323 | int err_code = 0; |
483dfdb6 TM |
324 | |
325 | PDEBUG(DBG_IO, "open"); | |
326 | ||
4d345708 HV |
327 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
328 | return -ERESTARTSYS; | |
483dfdb6 | 329 | |
62e25949 | 330 | if (usbvision->user) { |
5490a7cb | 331 | err_code = -EBUSY; |
62e25949 | 332 | } else { |
fd95870d HV |
333 | err_code = v4l2_fh_open(file); |
334 | if (err_code) | |
335 | goto unlock; | |
336 | ||
6f78e186 | 337 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 338 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 339 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
340 | /* Allocate intermediate decompression buffers |
341 | only if needed */ | |
5490a7cb | 342 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 343 | } |
5490a7cb | 344 | if (err_code) { |
483dfdb6 | 345 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 346 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
347 | usbvision_decompress_free(usbvision); |
348 | } | |
349 | } | |
350 | ||
351 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 352 | if (!err_code) { |
483dfdb6 TM |
353 | /* Send init sequence only once, it's large! */ |
354 | if (!usbvision->initialized) { | |
355 | int setup_ok = 0; | |
6d6a48e5 | 356 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
357 | if (setup_ok) |
358 | usbvision->initialized = 1; | |
359 | else | |
5490a7cb | 360 | err_code = -EBUSY; |
483dfdb6 TM |
361 | } |
362 | ||
5490a7cb | 363 | if (!err_code) { |
483dfdb6 | 364 | usbvision_begin_streaming(usbvision); |
5490a7cb | 365 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 366 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 367 | usbvision_muxsel(usbvision, 0); |
62e25949 HV |
368 | |
369 | /* prepare queues */ | |
370 | usbvision_empty_framequeues(usbvision); | |
483dfdb6 | 371 | usbvision->user++; |
483dfdb6 | 372 | } |
483dfdb6 TM |
373 | } |
374 | ||
fd95870d | 375 | unlock: |
4d345708 | 376 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
377 | |
378 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 379 | return err_code; |
483dfdb6 TM |
380 | } |
381 | ||
382 | /* | |
383 | * usbvision_v4l2_close() | |
384 | * | |
385 | * This is part of Video 4 Linux API. The procedure | |
386 | * stops streaming and deallocates all buffers that were earlier | |
387 | * allocated in usbvision_v4l2_open(). | |
388 | * | |
389 | */ | |
bec43661 | 390 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 391 | { |
c170ecf4 | 392 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
393 | |
394 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 | 395 | |
4d345708 | 396 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
397 | usbvision_audio_off(usbvision); |
398 | usbvision_restart_isoc(usbvision); | |
399 | usbvision_stop_isoc(usbvision); | |
400 | ||
401 | usbvision_decompress_free(usbvision); | |
38284ba3 | 402 | usbvision_frames_free(usbvision); |
6f78e186 | 403 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 404 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
405 | |
406 | usbvision->user--; | |
e2c84ccb | 407 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 408 | |
483dfdb6 | 409 | if (usbvision->remove_pending) { |
d2db42dd | 410 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 | 411 | usbvision_release(usbvision); |
470a9147 | 412 | return 0; |
483dfdb6 TM |
413 | } |
414 | ||
415 | PDEBUG(DBG_IO, "success"); | |
fd95870d | 416 | return v4l2_fh_release(file); |
483dfdb6 TM |
417 | } |
418 | ||
419 | ||
420 | /* | |
421 | * usbvision_ioctl() | |
422 | * | |
423 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
424 | * | |
425 | */ | |
c5f48367 | 426 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 427 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 428 | struct v4l2_dbg_register *reg) |
483dfdb6 | 429 | { |
c170ecf4 | 430 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 431 | int err_code; |
483dfdb6 | 432 | |
c5f48367 | 433 | /* NT100x has a 8-bit register space */ |
5490a7cb HV |
434 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
435 | if (err_code < 0) { | |
2aa689dd | 436 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 437 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", |
5490a7cb HV |
438 | __func__, err_code); |
439 | return err_code; | |
c5f48367 | 440 | } |
5490a7cb | 441 | reg->val = err_code; |
aecde8b5 | 442 | reg->size = 1; |
c5f48367 TM |
443 | return 0; |
444 | } | |
483dfdb6 | 445 | |
6d6a48e5 | 446 | static int vidioc_s_register(struct file *file, void *priv, |
977ba3b1 | 447 | const struct v4l2_dbg_register *reg) |
c5f48367 | 448 | { |
c170ecf4 | 449 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 450 | int err_code; |
62d50add | 451 | |
c5f48367 | 452 | /* NT100x has a 8-bit register space */ |
6d6a48e5 | 453 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 454 | if (err_code < 0) { |
2aa689dd | 455 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 456 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", |
5490a7cb HV |
457 | __func__, err_code); |
458 | return err_code; | |
c5f48367 TM |
459 | } |
460 | return 0; | |
461 | } | |
483dfdb6 | 462 | #endif |
c5f48367 | 463 | |
6d6a48e5 | 464 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
465 | struct v4l2_capability *vc) |
466 | { | |
c170ecf4 | 467 | struct usb_usbvision *usbvision = video_drvdata(file); |
cbe12cc6 | 468 | struct video_device *vdev = video_devdata(file); |
c5f48367 TM |
469 | |
470 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
471 | strlcpy(vc->card, | |
5490a7cb | 472 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 473 | sizeof(vc->card)); |
6f2a2781 | 474 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
cbe12cc6 HV |
475 | vc->device_caps = usbvision->have_tuner ? V4L2_CAP_TUNER : 0; |
476 | if (vdev->vfl_type == VFL_TYPE_GRABBER) | |
477 | vc->device_caps |= V4L2_CAP_VIDEO_CAPTURE | | |
478 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
479 | else | |
480 | vc->device_caps |= V4L2_CAP_RADIO; | |
481 | ||
482 | vc->capabilities = vc->device_caps | V4L2_CAP_VIDEO_CAPTURE | | |
483 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; | |
484 | if (usbvision_device_data[usbvision->dev_model].radio) | |
485 | vc->capabilities |= V4L2_CAP_RADIO; | |
c5f48367 TM |
486 | return 0; |
487 | } | |
488 | ||
6d6a48e5 | 489 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
490 | struct v4l2_input *vi) |
491 | { | |
c170ecf4 | 492 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
493 | int chan; |
494 | ||
223ffe5f | 495 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 496 | return -EINVAL; |
6d6a48e5 | 497 | if (usbvision->have_tuner) |
c5f48367 | 498 | chan = vi->index; |
6d6a48e5 | 499 | else |
52cb0bf2 | 500 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 501 | |
c5f48367 TM |
502 | /* Determine the requested input characteristics |
503 | specific for each usbvision card model */ | |
6d6a48e5 | 504 | switch (chan) { |
c5f48367 | 505 | case 0: |
5490a7cb | 506 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
507 | strcpy(vi->name, "White Video Input"); |
508 | } else { | |
509 | strcpy(vi->name, "Television"); | |
510 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
c5f48367 TM |
511 | vi->tuner = chan; |
512 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 513 | } |
c5f48367 TM |
514 | break; |
515 | case 1: | |
516 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 517 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 518 | strcpy(vi->name, "Green Video Input"); |
6d6a48e5 | 519 | else |
c5f48367 | 520 | strcpy(vi->name, "Composite Video Input"); |
94384014 | 521 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
522 | break; |
523 | case 2: | |
524 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 525 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 526 | strcpy(vi->name, "Yellow Video Input"); |
6d6a48e5 | 527 | else |
c5f48367 | 528 | strcpy(vi->name, "S-Video Input"); |
94384014 | 529 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
530 | break; |
531 | case 3: | |
532 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
533 | strcpy(vi->name, "Red Video Input"); | |
94384014 | 534 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
535 | break; |
536 | } | |
537 | return 0; | |
538 | } | |
483dfdb6 | 539 | |
6d6a48e5 | 540 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 541 | { |
c170ecf4 | 542 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 543 | |
c5f48367 TM |
544 | *input = usbvision->ctl_input; |
545 | return 0; | |
546 | } | |
483dfdb6 | 547 | |
6d6a48e5 | 548 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 549 | { |
c170ecf4 | 550 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 551 | |
f14a2972 | 552 | if (input >= usbvision->video_inputs) |
c5f48367 | 553 | return -EINVAL; |
483dfdb6 | 554 | |
66a17879 | 555 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
556 | usbvision_set_input(usbvision); |
557 | usbvision_set_output(usbvision, | |
558 | usbvision->curwidth, | |
559 | usbvision->curheight); | |
c5f48367 TM |
560 | return 0; |
561 | } | |
483dfdb6 | 562 | |
314527ac | 563 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) |
c5f48367 | 564 | { |
c170ecf4 HV |
565 | struct usb_usbvision *usbvision = video_drvdata(file); |
566 | ||
314527ac | 567 | usbvision->tvnorm_id = id; |
483dfdb6 | 568 | |
8774bed9 | 569 | call_all(usbvision, video, s_std, usbvision->tvnorm_id); |
66a17879 TM |
570 | /* propagate the change to the decoder */ |
571 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 572 | |
c5f48367 TM |
573 | return 0; |
574 | } | |
483dfdb6 | 575 | |
3b8436d9 HV |
576 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) |
577 | { | |
578 | struct usb_usbvision *usbvision = video_drvdata(file); | |
579 | ||
580 | *id = usbvision->tvnorm_id; | |
581 | return 0; | |
582 | } | |
583 | ||
6d6a48e5 | 584 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
585 | struct v4l2_tuner *vt) |
586 | { | |
c170ecf4 | 587 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 588 | |
64d416ec | 589 | if (vt->index) /* Only tuner 0 */ |
c5f48367 | 590 | return -EINVAL; |
64d416ec | 591 | if (vt->type == V4L2_TUNER_RADIO) |
c5f48367 | 592 | strcpy(vt->name, "Radio"); |
64d416ec | 593 | else |
c5f48367 | 594 | strcpy(vt->name, "Television"); |
64d416ec | 595 | |
c5f48367 | 596 | /* Let clients fill in the remainder of this struct */ |
1df79537 | 597 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 598 | |
c5f48367 TM |
599 | return 0; |
600 | } | |
483dfdb6 | 601 | |
6d6a48e5 | 602 | static int vidioc_s_tuner(struct file *file, void *priv, |
2f73c7c5 | 603 | const struct v4l2_tuner *vt) |
c5f48367 | 604 | { |
c170ecf4 | 605 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 606 | |
64d416ec HV |
607 | /* Only one tuner for now */ |
608 | if (vt->index) | |
c5f48367 TM |
609 | return -EINVAL; |
610 | /* let clients handle this */ | |
1df79537 | 611 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 612 | |
c5f48367 TM |
613 | return 0; |
614 | } | |
483dfdb6 | 615 | |
6d6a48e5 | 616 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
617 | struct v4l2_frequency *freq) |
618 | { | |
c170ecf4 | 619 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 620 | |
64d416ec HV |
621 | /* Only one tuner */ |
622 | if (freq->tuner) | |
623 | return -EINVAL; | |
624 | if (freq->type == V4L2_TUNER_RADIO) | |
625 | freq->frequency = usbvision->radio_freq; | |
6d6a48e5 | 626 | else |
64d416ec | 627 | freq->frequency = usbvision->tv_freq; |
483dfdb6 | 628 | |
c5f48367 TM |
629 | return 0; |
630 | } | |
483dfdb6 | 631 | |
6d6a48e5 | 632 | static int vidioc_s_frequency(struct file *file, void *priv, |
b530a447 | 633 | const struct v4l2_frequency *freq) |
c5f48367 | 634 | { |
c170ecf4 | 635 | struct usb_usbvision *usbvision = video_drvdata(file); |
64d416ec | 636 | struct v4l2_frequency new_freq = *freq; |
483dfdb6 | 637 | |
64d416ec HV |
638 | /* Only one tuner for now */ |
639 | if (freq->tuner) | |
c5f48367 | 640 | return -EINVAL; |
483dfdb6 | 641 | |
1df79537 | 642 | call_all(usbvision, tuner, s_frequency, freq); |
64d416ec HV |
643 | call_all(usbvision, tuner, g_frequency, &new_freq); |
644 | if (freq->type == V4L2_TUNER_RADIO) | |
645 | usbvision->radio_freq = new_freq.frequency; | |
646 | else | |
647 | usbvision->tv_freq = new_freq.frequency; | |
483dfdb6 | 648 | |
c5f48367 TM |
649 | return 0; |
650 | } | |
483dfdb6 | 651 | |
6d6a48e5 | 652 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
653 | void *priv, struct v4l2_requestbuffers *vr) |
654 | { | |
c170ecf4 | 655 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
656 | int ret; |
657 | ||
6d6a48e5 | 658 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
659 | |
660 | /* Check input validity: | |
661 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 662 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
663 | return -EINVAL; |
664 | ||
6d6a48e5 HV |
665 | if (usbvision->streaming == stream_on) { |
666 | ret = usbvision_stream_interrupt(usbvision); | |
667 | if (ret) | |
c5f48367 | 668 | return ret; |
483dfdb6 | 669 | } |
c5f48367 TM |
670 | |
671 | usbvision_frames_free(usbvision); | |
672 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 673 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 674 | |
5490a7cb | 675 | usbvision->cur_frame = NULL; |
c5f48367 | 676 | |
483dfdb6 TM |
677 | return 0; |
678 | } | |
679 | ||
6d6a48e5 | 680 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 681 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 682 | { |
c170ecf4 | 683 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
684 | struct usbvision_frame *frame; |
685 | ||
686 | /* FIXME : must control | |
687 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 688 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 689 | return -EINVAL; |
c5f48367 | 690 | /* Updating the corresponding frame state */ |
1b18e7a0 | 691 | vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
c5f48367 | 692 | frame = &usbvision->frame[vb->index]; |
6d6a48e5 | 693 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 694 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 695 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 696 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 697 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
698 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
699 | vb->memory = V4L2_MEMORY_MMAP; | |
700 | ||
6d6a48e5 | 701 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
702 | |
703 | vb->memory = V4L2_MEMORY_MMAP; | |
704 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
705 | vb->length = usbvision->curwidth * |
706 | usbvision->curheight * | |
c5f48367 TM |
707 | usbvision->palette.bytes_per_pixel; |
708 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
709 | vb->sequence = usbvision->frame[vb->index].sequence; | |
710 | return 0; | |
483dfdb6 TM |
711 | } |
712 | ||
6d6a48e5 | 713 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 714 | { |
c170ecf4 | 715 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
716 | struct usbvision_frame *frame; |
717 | unsigned long lock_flags; | |
718 | ||
719 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 720 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 721 | return -EINVAL; |
c5f48367 TM |
722 | |
723 | frame = &usbvision->frame[vb->index]; | |
724 | ||
6d6a48e5 | 725 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 726 | return -EAGAIN; |
c5f48367 TM |
727 | |
728 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
729 | frame->grabstate = frame_state_ready; |
730 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
731 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
732 | ||
733 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
734 | ||
735 | /* set v4l2_format index */ | |
736 | frame->v4l2_format = usbvision->palette; | |
737 | ||
738 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
739 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
740 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
6d6a48e5 | 745 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 746 | { |
c170ecf4 | 747 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
748 | int ret; |
749 | struct usbvision_frame *f; | |
750 | unsigned long lock_flags; | |
751 | ||
c5f48367 | 752 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 753 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
754 | return -EINVAL; |
755 | ret = wait_event_interruptible | |
756 | (usbvision->wait_frame, | |
757 | !list_empty(&(usbvision->outqueue))); | |
758 | if (ret) | |
759 | return ret; | |
760 | } | |
761 | ||
762 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
763 | f = list_entry(usbvision->outqueue.next, | |
764 | struct usbvision_frame, frame); | |
765 | list_del(usbvision->outqueue.next); | |
766 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
767 | ||
5490a7cb | 768 | f->grabstate = frame_state_unused; |
c5f48367 TM |
769 | |
770 | vb->memory = V4L2_MEMORY_MMAP; | |
771 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
772 | V4L2_BUF_FLAG_QUEUED | | |
1b18e7a0 SA |
773 | V4L2_BUF_FLAG_DONE | |
774 | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
c5f48367 TM |
775 | vb->index = f->index; |
776 | vb->sequence = f->sequence; | |
777 | vb->timestamp = f->timestamp; | |
778 | vb->field = V4L2_FIELD_NONE; | |
779 | vb->bytesused = f->scanlength; | |
780 | ||
781 | return 0; | |
782 | } | |
783 | ||
784 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
785 | { | |
c170ecf4 | 786 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 787 | |
5490a7cb | 788 | usbvision->streaming = stream_on; |
1df79537 | 789 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
790 | |
791 | return 0; | |
792 | } | |
793 | ||
794 | static int vidioc_streamoff(struct file *file, | |
795 | void *priv, enum v4l2_buf_type type) | |
796 | { | |
c170ecf4 | 797 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
798 | |
799 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
800 | return -EINVAL; | |
801 | ||
6d6a48e5 | 802 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
803 | usbvision_stream_interrupt(usbvision); |
804 | /* Stop all video streamings */ | |
1df79537 | 805 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
806 | } |
807 | usbvision_empty_framequeues(usbvision); | |
808 | ||
809 | return 0; | |
810 | } | |
811 | ||
6d6a48e5 | 812 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
813 | struct v4l2_fmtdesc *vfd) |
814 | { | |
6d6a48e5 | 815 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 816 | return -EINVAL; |
6d6a48e5 | 817 | strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); |
c5f48367 | 818 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
819 | return 0; |
820 | } | |
821 | ||
6d6a48e5 | 822 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
823 | struct v4l2_format *vf) |
824 | { | |
c170ecf4 | 825 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
826 | vf->fmt.pix.width = usbvision->curwidth; |
827 | vf->fmt.pix.height = usbvision->curheight; | |
828 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
829 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
830 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
831 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
832 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
833 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
834 | ||
835 | return 0; | |
836 | } | |
837 | ||
6d6a48e5 | 838 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
839 | struct v4l2_format *vf) |
840 | { | |
c170ecf4 | 841 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 842 | int format_idx; |
c5f48367 TM |
843 | |
844 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
845 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
846 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
847 | usbvision_v4l2_format[format_idx].format) { |
848 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
849 | break; |
850 | } | |
851 | } | |
852 | /* robustness */ | |
6d6a48e5 | 853 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 854 | return -EINVAL; |
c5f48367 TM |
855 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
856 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
857 | ||
858 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
859 | usbvision->palette.bytes_per_pixel; | |
860 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
4eeda6fa HV |
861 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
862 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
c5f48367 TM |
863 | |
864 | return 0; | |
865 | } | |
866 | ||
78b526a4 | 867 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
868 | struct v4l2_format *vf) |
869 | { | |
c170ecf4 | 870 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
871 | int ret; |
872 | ||
6d6a48e5 HV |
873 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
874 | if (ret) | |
c5f48367 | 875 | return ret; |
c5f48367 TM |
876 | |
877 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
878 | if (usbvision->streaming == stream_on) { |
879 | ret = usbvision_stream_interrupt(usbvision); | |
880 | if (ret) | |
c5f48367 TM |
881 | return ret; |
882 | } | |
883 | usbvision_frames_free(usbvision); | |
884 | usbvision_empty_framequeues(usbvision); | |
885 | ||
5490a7cb | 886 | usbvision->cur_frame = NULL; |
c5f48367 TM |
887 | |
888 | /* by now we are committed to the new data... */ | |
c5f48367 | 889 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
890 | |
891 | return 0; | |
892 | } | |
483dfdb6 | 893 | |
4d345708 | 894 | static ssize_t usbvision_read(struct file *file, char __user *buf, |
483dfdb6 TM |
895 | size_t count, loff_t *ppos) |
896 | { | |
c170ecf4 | 897 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
898 | int noblock = file->f_flags & O_NONBLOCK; |
899 | unsigned long lock_flags; | |
6d6a48e5 | 900 | int ret, i; |
483dfdb6 TM |
901 | struct usbvision_frame *frame; |
902 | ||
d2db42dd | 903 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 904 | (unsigned long)count, noblock); |
483dfdb6 | 905 | |
c4cdcf9f | 906 | if (!USBVISION_IS_OPERATIONAL(usbvision) || !buf) |
483dfdb6 TM |
907 | return -EFAULT; |
908 | ||
c5f48367 TM |
909 | /* This entry point is compatible with the mmap routines |
910 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
911 | to get frames or call read on the device. */ | |
6d6a48e5 | 912 | if (!usbvision->num_frames) { |
c5f48367 TM |
913 | /* First, allocate some frames to work with |
914 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
915 | usbvision_frames_free(usbvision); |
916 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 917 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
918 | } |
919 | ||
6d6a48e5 | 920 | if (usbvision->streaming != stream_on) { |
6f78e186 | 921 | /* no stream is running, make it running ! */ |
5490a7cb | 922 | usbvision->streaming = stream_on; |
1df79537 | 923 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 924 | } |
483dfdb6 | 925 | |
c5f48367 TM |
926 | /* Then, enqueue as many frames as possible |
927 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 928 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 929 | frame = &usbvision->frame[i]; |
6d6a48e5 | 930 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 931 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
932 | frame->grabstate = frame_state_ready; |
933 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
934 | /* Accumulated in usbvision_parse_data() */ |
935 | frame->scanlength = 0; | |
483dfdb6 TM |
936 | |
937 | /* set v4l2_format index */ | |
938 | frame->v4l2_format = usbvision->palette; | |
939 | ||
940 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
941 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
942 | spin_unlock_irqrestore(&usbvision->queue_lock, |
943 | lock_flags); | |
483dfdb6 TM |
944 | } |
945 | } | |
946 | ||
947 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
948 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 949 | if (noblock) |
483dfdb6 TM |
950 | return -EAGAIN; |
951 | ||
952 | ret = wait_event_interruptible | |
953 | (usbvision->wait_frame, | |
954 | !list_empty(&(usbvision->outqueue))); | |
955 | if (ret) | |
956 | return ret; | |
957 | } | |
958 | ||
959 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
960 | frame = list_entry(usbvision->outqueue.next, | |
961 | struct usbvision_frame, frame); | |
962 | list_del(usbvision->outqueue.next); | |
963 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
964 | ||
965 | /* An error returns an empty frame */ | |
5490a7cb | 966 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
967 | frame->bytes_read = 0; |
968 | return 0; | |
969 | } | |
970 | ||
c5f48367 | 971 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 972 | __func__, |
c5f48367 | 973 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
974 | |
975 | /* copy bytes to user space; we allow for partials reads */ | |
976 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
977 | count = frame->scanlength - frame->bytes_read; | |
978 | ||
6d6a48e5 | 979 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 980 | return -EFAULT; |
483dfdb6 TM |
981 | |
982 | frame->bytes_read += count; | |
c5f48367 | 983 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 984 | __func__, |
c5f48367 | 985 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 986 | |
b295e5c7 MCC |
987 | #if 1 |
988 | /* | |
989 | * FIXME: | |
990 | * For now, forget the frame if it has not been read in one shot. | |
991 | */ | |
992 | frame->bytes_read = 0; | |
993 | ||
994 | /* Mark it as available to be used again. */ | |
995 | frame->grabstate = frame_state_unused; | |
996 | #else | |
997 | if (frame->bytes_read >= frame->scanlength) { | |
998 | /* All data has been read */ | |
483dfdb6 TM |
999 | frame->bytes_read = 0; |
1000 | ||
1001 | /* Mark it as available to be used again. */ | |
5490a7cb | 1002 | frame->grabstate = frame_state_unused; |
b295e5c7 MCC |
1003 | } |
1004 | #endif | |
483dfdb6 TM |
1005 | |
1006 | return count; | |
1007 | } | |
1008 | ||
4d345708 HV |
1009 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
1010 | size_t count, loff_t *ppos) | |
1011 | { | |
1012 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1013 | int res; | |
1014 | ||
1015 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1016 | return -ERESTARTSYS; | |
1017 | res = usbvision_read(file, buf, count, ppos); | |
1018 | mutex_unlock(&usbvision->v4l2_lock); | |
1019 | return res; | |
1020 | } | |
1021 | ||
1022 | static int usbvision_mmap(struct file *file, struct vm_area_struct *vma) | |
483dfdb6 TM |
1023 | { |
1024 | unsigned long size = vma->vm_end - vma->vm_start, | |
1025 | start = vma->vm_start; | |
1026 | void *pos; | |
1027 | u32 i; | |
c170ecf4 | 1028 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1029 | |
6f78e186 TM |
1030 | PDEBUG(DBG_MMAP, "mmap"); |
1031 | ||
6d6a48e5 | 1032 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1033 | return -EFAULT; |
483dfdb6 TM |
1034 | |
1035 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1036 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1037 | return -EINVAL; |
1038 | } | |
1039 | ||
6f78e186 | 1040 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1041 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1042 | vma->vm_pgoff) | |
483dfdb6 TM |
1043 | break; |
1044 | } | |
6f78e186 | 1045 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1046 | PDEBUG(DBG_MMAP, |
1047 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1048 | return -EINVAL; |
1049 | } | |
1050 | ||
1051 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
314e51b9 | 1052 | vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; |
483dfdb6 TM |
1053 | |
1054 | pos = usbvision->frame[i].data; | |
1055 | while (size > 0) { | |
483dfdb6 | 1056 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1057 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1058 | return -EAGAIN; |
1059 | } | |
1060 | start += PAGE_SIZE; | |
1061 | pos += PAGE_SIZE; | |
1062 | size -= PAGE_SIZE; | |
1063 | } | |
1064 | ||
483dfdb6 TM |
1065 | return 0; |
1066 | } | |
1067 | ||
4d345708 HV |
1068 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1069 | { | |
1070 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1071 | int res; | |
1072 | ||
1073 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1074 | return -ERESTARTSYS; | |
1075 | res = usbvision_mmap(file, vma); | |
1076 | mutex_unlock(&usbvision->v4l2_lock); | |
1077 | return res; | |
1078 | } | |
483dfdb6 TM |
1079 | |
1080 | /* | |
1081 | * Here comes the stuff for radio on usbvision based devices | |
1082 | * | |
1083 | */ | |
bec43661 | 1084 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1085 | { |
c170ecf4 | 1086 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1087 | int err_code = 0; |
483dfdb6 | 1088 | |
d2db42dd | 1089 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1090 | |
4d345708 HV |
1091 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
1092 | return -ERESTARTSYS; | |
fd95870d HV |
1093 | err_code = v4l2_fh_open(file); |
1094 | if (err_code) | |
1095 | goto out; | |
483dfdb6 | 1096 | if (usbvision->user) { |
2aa689dd | 1097 | dev_err(&usbvision->rdev.dev, |
be9ed511 MCC |
1098 | "%s: Someone tried to open an already opened USBVision Radio!\n", |
1099 | __func__); | |
5490a7cb | 1100 | err_code = -EBUSY; |
6d6a48e5 | 1101 | } else { |
2a9f8b5d | 1102 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1103 | err_code = usbvision_set_alternate(usbvision); |
1104 | if (err_code < 0) { | |
1105 | usbvision->last_error = err_code; | |
1106 | err_code = -EBUSY; | |
544e6175 | 1107 | goto out; |
2a9f8b5d TM |
1108 | } |
1109 | ||
52cb0bf2 | 1110 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1111 | usbvision->radio = 1; |
1df79537 | 1112 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1113 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1114 | usbvision->user++; | |
1115 | } | |
544e6175 | 1116 | out: |
4d345708 | 1117 | mutex_unlock(&usbvision->v4l2_lock); |
5490a7cb | 1118 | return err_code; |
483dfdb6 TM |
1119 | } |
1120 | ||
1121 | ||
bec43661 | 1122 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1123 | { |
c170ecf4 | 1124 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
1125 | |
1126 | PDEBUG(DBG_IO, ""); | |
1127 | ||
4d345708 | 1128 | mutex_lock(&usbvision->v4l2_lock); |
2a9f8b5d | 1129 | /* Set packet size to 0 */ |
6d6a48e5 | 1130 | usbvision->iface_alt = 0; |
fd95870d | 1131 | usb_set_interface(usbvision->dev, usbvision->iface, |
5490a7cb | 1132 | usbvision->iface_alt); |
2a9f8b5d | 1133 | |
483dfdb6 | 1134 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1135 | usbvision->radio = 0; |
483dfdb6 | 1136 | usbvision->user--; |
5ce625a4 | 1137 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 1138 | |
483dfdb6 | 1139 | if (usbvision->remove_pending) { |
d2db42dd | 1140 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
fd95870d | 1141 | v4l2_fh_release(file); |
483dfdb6 | 1142 | usbvision_release(usbvision); |
fd95870d | 1143 | return 0; |
483dfdb6 TM |
1144 | } |
1145 | ||
483dfdb6 | 1146 | PDEBUG(DBG_IO, "success"); |
fd95870d | 1147 | return v4l2_fh_release(file); |
483dfdb6 TM |
1148 | } |
1149 | ||
52cb0bf2 | 1150 | /* Video registration stuff */ |
483dfdb6 | 1151 | |
52cb0bf2 | 1152 | /* Video template */ |
bec43661 | 1153 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1154 | .owner = THIS_MODULE, |
483dfdb6 TM |
1155 | .open = usbvision_v4l2_open, |
1156 | .release = usbvision_v4l2_close, | |
1157 | .read = usbvision_v4l2_read, | |
1158 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1159 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 | 1160 | }; |
a399810c HV |
1161 | |
1162 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1163 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1164 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1165 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1166 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1167 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1168 | .vidioc_reqbufs = vidioc_reqbufs, |
1169 | .vidioc_querybuf = vidioc_querybuf, | |
1170 | .vidioc_qbuf = vidioc_qbuf, | |
1171 | .vidioc_dqbuf = vidioc_dqbuf, | |
1172 | .vidioc_s_std = vidioc_s_std, | |
3b8436d9 | 1173 | .vidioc_g_std = vidioc_g_std, |
c5f48367 TM |
1174 | .vidioc_enum_input = vidioc_enum_input, |
1175 | .vidioc_g_input = vidioc_g_input, | |
1176 | .vidioc_s_input = vidioc_s_input, | |
c5f48367 TM |
1177 | .vidioc_streamon = vidioc_streamon, |
1178 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1179 | .vidioc_g_tuner = vidioc_g_tuner, |
1180 | .vidioc_s_tuner = vidioc_s_tuner, | |
1181 | .vidioc_g_frequency = vidioc_g_frequency, | |
1182 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1183 | .vidioc_log_status = v4l2_ctrl_log_status, |
1184 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1185 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
c5f48367 TM |
1186 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1187 | .vidioc_g_register = vidioc_g_register, | |
1188 | .vidioc_s_register = vidioc_s_register, | |
1189 | #endif | |
a399810c HV |
1190 | }; |
1191 | ||
1192 | static struct video_device usbvision_video_template = { | |
a399810c | 1193 | .fops = &usbvision_fops, |
6d6a48e5 | 1194 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c | 1195 | .name = "usbvision-video", |
2aa689dd | 1196 | .release = video_device_release_empty, |
6d6a48e5 | 1197 | .tvnorms = USBVISION_NORMS, |
483dfdb6 TM |
1198 | }; |
1199 | ||
1200 | ||
52cb0bf2 | 1201 | /* Radio template */ |
bec43661 | 1202 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1203 | .owner = THIS_MODULE, |
483dfdb6 TM |
1204 | .open = usbvision_radio_open, |
1205 | .release = usbvision_radio_close, | |
fd95870d | 1206 | .poll = v4l2_ctrl_poll, |
c627b9d1 | 1207 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1208 | }; |
1209 | ||
a399810c | 1210 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 | 1211 | .vidioc_querycap = vidioc_querycap, |
c5f48367 TM |
1212 | .vidioc_g_tuner = vidioc_g_tuner, |
1213 | .vidioc_s_tuner = vidioc_s_tuner, | |
1214 | .vidioc_g_frequency = vidioc_g_frequency, | |
1215 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1216 | .vidioc_log_status = v4l2_ctrl_log_status, |
1217 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1218 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
a399810c HV |
1219 | }; |
1220 | ||
1221 | static struct video_device usbvision_radio_template = { | |
a399810c | 1222 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1223 | .name = "usbvision-radio", |
2aa689dd | 1224 | .release = video_device_release_empty, |
6d6a48e5 | 1225 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
483dfdb6 TM |
1226 | }; |
1227 | ||
483dfdb6 | 1228 | |
2aa689dd HV |
1229 | static void usbvision_vdev_init(struct usb_usbvision *usbvision, |
1230 | struct video_device *vdev, | |
1231 | const struct video_device *vdev_template, | |
1232 | const char *name) | |
483dfdb6 TM |
1233 | { |
1234 | struct usb_device *usb_dev = usbvision->dev; | |
483dfdb6 | 1235 | |
c4cdcf9f | 1236 | if (!usb_dev) { |
be9ed511 MCC |
1237 | dev_err(&usbvision->dev->dev, |
1238 | "%s: usbvision->dev is not set\n", __func__); | |
2aa689dd | 1239 | return; |
483dfdb6 TM |
1240 | } |
1241 | ||
483dfdb6 | 1242 | *vdev = *vdev_template; |
c627b9d1 | 1243 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1244 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1245 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1246 | video_set_drvdata(vdev, usbvision); | |
483dfdb6 TM |
1247 | } |
1248 | ||
52cb0bf2 | 1249 | /* unregister video4linux devices */ |
483dfdb6 TM |
1250 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1251 | { | |
52cb0bf2 | 1252 | /* Radio Device: */ |
2aa689dd | 1253 | if (video_is_registered(&usbvision->rdev)) { |
38c7c036 | 1254 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1255 | video_device_node_name(&usbvision->rdev)); |
1256 | video_unregister_device(&usbvision->rdev); | |
483dfdb6 TM |
1257 | } |
1258 | ||
52cb0bf2 | 1259 | /* Video Device: */ |
2aa689dd | 1260 | if (video_is_registered(&usbvision->vdev)) { |
38c7c036 | 1261 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1262 | video_device_node_name(&usbvision->vdev)); |
1263 | video_unregister_device(&usbvision->vdev); | |
483dfdb6 TM |
1264 | } |
1265 | } | |
1266 | ||
52cb0bf2 | 1267 | /* register video4linux devices */ |
4c62e976 | 1268 | static int usbvision_register_video(struct usb_usbvision *usbvision) |
483dfdb6 | 1269 | { |
2b43665f HV |
1270 | int res = -ENOMEM; |
1271 | ||
52cb0bf2 | 1272 | /* Video Device: */ |
2aa689dd HV |
1273 | usbvision_vdev_init(usbvision, &usbvision->vdev, |
1274 | &usbvision_video_template, "USBVision Video"); | |
64d416ec HV |
1275 | if (!usbvision->have_tuner) { |
1276 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1277 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1278 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1279 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1280 | } | |
2aa689dd | 1281 | if (video_register_device(&usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1282 | goto err_exit; |
38c7c036 | 1283 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
2aa689dd | 1284 | usbvision->nr, video_device_node_name(&usbvision->vdev)); |
483dfdb6 | 1285 | |
52cb0bf2 | 1286 | /* Radio Device: */ |
5490a7cb | 1287 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1288 | /* usbvision has radio */ |
2aa689dd HV |
1289 | usbvision_vdev_init(usbvision, &usbvision->rdev, |
1290 | &usbvision_radio_template, "USBVision Radio"); | |
1291 | if (video_register_device(&usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) | |
483dfdb6 | 1292 | goto err_exit; |
38c7c036 | 1293 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
2aa689dd | 1294 | usbvision->nr, video_device_node_name(&usbvision->rdev)); |
483dfdb6 | 1295 | } |
52cb0bf2 | 1296 | /* all done */ |
483dfdb6 TM |
1297 | return 0; |
1298 | ||
1299 | err_exit: | |
be9ed511 MCC |
1300 | dev_err(&usbvision->dev->dev, |
1301 | "USBVision[%d]: video_register_device() failed\n", | |
1302 | usbvision->nr); | |
483dfdb6 | 1303 | usbvision_unregister_video(usbvision); |
2b43665f | 1304 | return res; |
483dfdb6 TM |
1305 | } |
1306 | ||
1307 | /* | |
1308 | * usbvision_alloc() | |
1309 | * | |
c5f48367 TM |
1310 | * This code allocates the struct usb_usbvision. |
1311 | * It is filled with default values. | |
483dfdb6 TM |
1312 | * |
1313 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1314 | * | |
1315 | */ | |
a878440d JG |
1316 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1317 | struct usb_interface *intf) | |
483dfdb6 TM |
1318 | { |
1319 | struct usb_usbvision *usbvision; | |
1320 | ||
1fbfd8c1 | 1321 | usbvision = kzalloc(sizeof(*usbvision), GFP_KERNEL); |
c4cdcf9f | 1322 | if (!usbvision) |
1df79537 | 1323 | return NULL; |
483dfdb6 TM |
1324 | |
1325 | usbvision->dev = dev; | |
a878440d | 1326 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1327 | goto err_free; |
483dfdb6 | 1328 | |
fd95870d HV |
1329 | if (v4l2_ctrl_handler_init(&usbvision->hdl, 4)) |
1330 | goto err_unreg; | |
1331 | usbvision->v4l2_dev.ctrl_handler = &usbvision->hdl; | |
c627b9d1 | 1332 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1333 | |
52cb0bf2 | 1334 | /* prepare control urb for control messages during interrupts */ |
5490a7cb | 1335 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
c4cdcf9f | 1336 | if (!usbvision->ctrl_urb) |
1df79537 | 1337 | goto err_unreg; |
483dfdb6 | 1338 | |
483dfdb6 TM |
1339 | return usbvision; |
1340 | ||
1df79537 | 1341 | err_unreg: |
fd95870d | 1342 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 HV |
1343 | v4l2_device_unregister(&usbvision->v4l2_dev); |
1344 | err_free: | |
1345 | kfree(usbvision); | |
483dfdb6 TM |
1346 | return NULL; |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * usbvision_release() | |
1351 | * | |
1352 | * This code does final release of struct usb_usbvision. This happens | |
1353 | * after the device is disconnected -and- all clients closed their files. | |
1354 | * | |
1355 | */ | |
1356 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1357 | { | |
1358 | PDEBUG(DBG_PROBE, ""); | |
1359 | ||
483dfdb6 TM |
1360 | usbvision->initialized = 0; |
1361 | ||
2aa689dd | 1362 | usbvision_remove_sysfs(&usbvision->vdev); |
483dfdb6 | 1363 | usbvision_unregister_video(usbvision); |
090c65b6 | 1364 | kfree(usbvision->alt_max_pkt_size); |
483dfdb6 | 1365 | |
6d6a48e5 | 1366 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1367 | |
fd95870d | 1368 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 | 1369 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1370 | kfree(usbvision); |
1371 | ||
1372 | PDEBUG(DBG_PROBE, "success"); | |
1373 | } | |
1374 | ||
1375 | ||
c5f48367 | 1376 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1377 | |
1378 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1379 | { | |
c5f48367 | 1380 | int model; |
483dfdb6 | 1381 | |
c4cdcf9f | 1382 | if (!usbvision) |
483dfdb6 TM |
1383 | return; |
1384 | ||
5490a7cb | 1385 | model = usbvision->dev_model; |
52cb0bf2 | 1386 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1387 | |
5490a7cb HV |
1388 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1389 | usbvision->vin_reg2_preset = | |
1390 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1391 | } else { |
5490a7cb | 1392 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1393 | } |
1394 | ||
5490a7cb | 1395 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
5490a7cb | 1396 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 | 1397 | usbvision->ctl_input = 0; |
64d416ec HV |
1398 | usbvision->radio_freq = 87.5 * 16000; |
1399 | usbvision->tv_freq = 400 * 16; | |
483dfdb6 TM |
1400 | |
1401 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 | 1402 | /* first switch off audio */ |
240d57bb OZ |
1403 | if (usbvision_device_data[model].audio_channels > 0) |
1404 | usbvision_audio_off(usbvision); | |
62e25949 HV |
1405 | /* and then power up the tuner */ |
1406 | usbvision_power_on(usbvision); | |
1407 | usbvision_i2c_register(usbvision); | |
483dfdb6 TM |
1408 | } |
1409 | ||
1410 | /* | |
1411 | * usbvision_probe() | |
1412 | * | |
1413 | * This procedure queries device descriptor and accepts the interface | |
1414 | * if it looks like USBVISION video device | |
1415 | * | |
1416 | */ | |
4c62e976 GKH |
1417 | static int usbvision_probe(struct usb_interface *intf, |
1418 | const struct usb_device_id *devid) | |
483dfdb6 | 1419 | { |
2a9f8b5d TM |
1420 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1421 | struct usb_interface *uif; | |
483dfdb6 TM |
1422 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1423 | const struct usb_host_interface *interface; | |
1424 | struct usb_usbvision *usbvision = NULL; | |
1425 | const struct usb_endpoint_descriptor *endpoint; | |
afd270d1 | 1426 | int model, i, ret; |
483dfdb6 TM |
1427 | |
1428 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
ab64a589 JH |
1429 | le16_to_cpu(dev->descriptor.idVendor), |
1430 | le16_to_cpu(dev->descriptor.idProduct), ifnum); | |
2a9f8b5d | 1431 | |
659ae56d | 1432 | model = devid->driver_info; |
6d6a48e5 HV |
1433 | if (model < 0 || model >= usbvision_device_data_size) { |
1434 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
afd270d1 AK |
1435 | ret = -ENODEV; |
1436 | goto err_usb; | |
f8a389db | 1437 | } |
d2db42dd | 1438 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1439 | usbvision_device_data[model].model_string); |
483dfdb6 | 1440 | |
6d6a48e5 | 1441 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1442 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
fa52bd50 | 1443 | else if (ifnum < dev->actconfig->desc.bNumInterfaces) |
483dfdb6 | 1444 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
fa52bd50 VD |
1445 | else { |
1446 | dev_err(&intf->dev, "interface %d is invalid, max is %d\n", | |
1447 | ifnum, dev->actconfig->desc.bNumInterfaces - 1); | |
1448 | ret = -ENODEV; | |
1449 | goto err_usb; | |
1450 | } | |
1451 | ||
1452 | if (interface->desc.bNumEndpoints < 2) { | |
02c539d3 MCC |
1453 | dev_err(&intf->dev, "interface %d has %d endpoints, but must have minimum 2\n", |
1454 | ifnum, interface->desc.bNumEndpoints); | |
fa52bd50 VD |
1455 | ret = -ENODEV; |
1456 | goto err_usb; | |
1457 | } | |
483dfdb6 | 1458 | endpoint = &interface->endpoint[1].desc; |
fa52bd50 | 1459 | |
2230c3c8 | 1460 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1461 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1462 | __func__, ifnum); |
be9ed511 | 1463 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1464 | __func__, endpoint->bmAttributes); |
afd270d1 AK |
1465 | ret = -ENODEV; |
1466 | goto err_usb; | |
483dfdb6 | 1467 | } |
13417982 | 1468 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1469 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1470 | __func__, ifnum); |
afd270d1 AK |
1471 | ret = -ENODEV; |
1472 | goto err_usb; | |
483dfdb6 TM |
1473 | } |
1474 | ||
a878440d | 1475 | usbvision = usbvision_alloc(dev, intf); |
c4cdcf9f | 1476 | if (!usbvision) { |
be9ed511 | 1477 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
afd270d1 AK |
1478 | ret = -ENOMEM; |
1479 | goto err_usb; | |
483dfdb6 | 1480 | } |
659ae56d | 1481 | |
6d6a48e5 | 1482 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1483 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1484 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1485 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1486 | else |
5490a7cb | 1487 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1488 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1489 | |
2a9f8b5d TM |
1490 | /* compute alternate max packet sizes */ |
1491 | uif = dev->actconfig->interface[0]; | |
1492 | ||
6d6a48e5 HV |
1493 | usbvision->num_alt = uif->num_altsetting; |
1494 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
6da2ec56 KC |
1495 | usbvision->alt_max_pkt_size = kmalloc_array(32, usbvision->num_alt, |
1496 | 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); |