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 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Let's call the version 0.... until compression decoding is completely | |
25 | * implemented. | |
26 | * | |
27 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
28 | * It was based on USB CPiA driver written by Peter Pregler, | |
29 | * Scott J. Bertin and Johannes Erdfelt | |
30 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
31 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
32 | * Updates to driver completed by Dwaine P. Garden | |
33 | * | |
34 | * | |
35 | * TODO: | |
36 | * - use submit_urb for all setup packets | |
37 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
38 | * nt1003 memory. | |
c5f48367 TM |
39 | * - Add audio on endpoint 3 for nt1004 chip. |
40 | * Seems impossible, needs a codec interface. Which one? | |
483dfdb6 TM |
41 | * - Clean up the driver. |
42 | * - optimization for performance. | |
43 | * - Add Videotext capability (VBI). Working on it..... | |
44 | * - Check audio for other devices | |
45 | * | |
46 | */ | |
47 | ||
f30ebd43 | 48 | #include <linux/version.h> |
483dfdb6 | 49 | #include <linux/kernel.h> |
483dfdb6 TM |
50 | #include <linux/list.h> |
51 | #include <linux/timer.h> | |
52 | #include <linux/slab.h> | |
53 | #include <linux/mm.h> | |
483dfdb6 | 54 | #include <linux/highmem.h> |
483dfdb6 TM |
55 | #include <linux/vmalloc.h> |
56 | #include <linux/module.h> | |
57 | #include <linux/init.h> | |
58 | #include <linux/spinlock.h> | |
59 | #include <asm/io.h> | |
60 | #include <linux/videodev2.h> | |
483dfdb6 TM |
61 | #include <linux/i2c.h> |
62 | ||
63 | #include <media/saa7115.h> | |
64 | #include <media/v4l2-common.h> | |
35ea11ff | 65 | #include <media/v4l2-ioctl.h> |
483dfdb6 | 66 | #include <media/tuner.h> |
483dfdb6 | 67 | |
a1ed551c | 68 | #include <linux/workqueue.h> |
483dfdb6 | 69 | |
483dfdb6 | 70 | #include "usbvision.h" |
659ae56d | 71 | #include "usbvision-cards.h" |
483dfdb6 | 72 | |
c5f48367 TM |
73 | #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\ |
74 | Dwaine Garden <DwaineGarden@rogers.com>" | |
483dfdb6 TM |
75 | #define DRIVER_NAME "usbvision" |
76 | #define DRIVER_ALIAS "USBVision" | |
77 | #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" | |
78 | #define DRIVER_LICENSE "GPL" | |
79 | #define USBVISION_DRIVER_VERSION_MAJOR 0 | |
80 | #define USBVISION_DRIVER_VERSION_MINOR 9 | |
3ff4ad81 | 81 | #define USBVISION_DRIVER_VERSION_PATCHLEVEL 10 |
c5f48367 TM |
82 | #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\ |
83 | USBVISION_DRIVER_VERSION_MINOR,\ | |
84 | USBVISION_DRIVER_VERSION_PATCHLEVEL) | |
85 | #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\ | |
86 | "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\ | |
87 | "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) | |
483dfdb6 TM |
88 | |
89 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
90 | ||
91 | ||
483dfdb6 | 92 | #ifdef USBVISION_DEBUG |
df18c319 | 93 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 94 | if (video_debug & (level)) \ |
a482f327 GKH |
95 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
96 | __func__, __LINE__ , ## args); \ | |
df18c319 | 97 | } |
483dfdb6 TM |
98 | #else |
99 | #define PDEBUG(level, fmt, args...) do {} while(0) | |
100 | #endif | |
101 | ||
483dfdb6 TM |
102 | #define DBG_IO 1<<1 |
103 | #define DBG_PROBE 1<<2 | |
c876a346 | 104 | #define DBG_MMAP 1<<3 |
483dfdb6 TM |
105 | |
106 | //String operations | |
107 | #define rmspace(str) while(*str==' ') str++; | |
108 | #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; | |
109 | ||
110 | ||
c5f48367 | 111 | /* sequential number of usbvision device */ |
ff699e6b | 112 | static int usbvision_nr; |
483dfdb6 TM |
113 | |
114 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
115 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
116 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
117 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
118 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
119 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
120 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
121 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! | |
122 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } | |
123 | }; | |
124 | ||
c5f48367 | 125 | /* Function prototypes */ |
483dfdb6 TM |
126 | static void usbvision_release(struct usb_usbvision *usbvision); |
127 | ||
c84e6036 | 128 | /* Default initialization of device driver parameters */ |
c5f48367 | 129 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 130 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 131 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 132 | static int video_debug; |
c5f48367 | 133 | /* Set the default device to power on at startup */ |
5490a7cb | 134 | static int power_on_at_open = 1; |
c5f48367 TM |
135 | /* Sequential Number of Video Device */ |
136 | static int video_nr = -1; | |
137 | /* Sequential Number of Radio Device */ | |
138 | static int radio_nr = -1; | |
c5f48367 TM |
139 | |
140 | /* Grab parameters for the device driver */ | |
141 | ||
142 | /* Showing parameters under SYSFS */ | |
5490a7cb | 143 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 144 | module_param(video_debug, int, 0444); |
5490a7cb | 145 | module_param(power_on_at_open, int, 0444); |
483dfdb6 TM |
146 | module_param(video_nr, int, 0444); |
147 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 148 | |
5490a7cb | 149 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 150 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
5490a7cb | 151 | MODULE_PARM_DESC(power_on_at_open, " Set the default device to power on when device is opened. Default: 1 (On)"); |
483dfdb6 TM |
152 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
153 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
154 | |
155 | ||
156 | // Misc stuff | |
157 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
158 | MODULE_DESCRIPTION(DRIVER_DESC); | |
159 | MODULE_LICENSE(DRIVER_LICENSE); | |
a1ed551c MCC |
160 | MODULE_VERSION(USBVISION_VERSION_STRING); |
161 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
162 | |
163 | ||
c5f48367 TM |
164 | /*****************************************************************************/ |
165 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
166 | /* Device information is located at /sys/class/video4linux/video0 */ | |
167 | /* Device parameters information is located at /sys/module/usbvision */ | |
168 | /* Device USB Information is located at */ | |
169 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
170 | /*****************************************************************************/ | |
483dfdb6 | 171 | |
483dfdb6 TM |
172 | #define YES_NO(x) ((x) ? "Yes" : "No") |
173 | ||
54bd5b66 | 174 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 175 | { |
c5f48367 | 176 | struct video_device *vdev = |
22a04f10 | 177 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
178 | return video_get_drvdata(vdev); |
179 | } | |
180 | ||
54bd5b66 KS |
181 | static ssize_t show_version(struct device *cd, |
182 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
183 | { |
184 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
185 | } | |
54bd5b66 | 186 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 187 | |
54bd5b66 KS |
188 | static ssize_t show_model(struct device *cd, |
189 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 190 | { |
c5f48367 | 191 | struct video_device *vdev = |
22a04f10 | 192 | container_of(cd, struct video_device, dev); |
483dfdb6 | 193 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 194 | return sprintf(buf, "%s\n", |
5490a7cb | 195 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 196 | } |
54bd5b66 | 197 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 198 | |
54bd5b66 KS |
199 | static ssize_t show_hue(struct device *cd, |
200 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 201 | { |
c5f48367 | 202 | struct video_device *vdev = |
22a04f10 | 203 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
204 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
205 | struct v4l2_control ctrl; | |
206 | ctrl.id = V4L2_CID_HUE; | |
207 | ctrl.value = 0; | |
ed00b41d | 208 | if(usbvision->user) |
1df79537 | 209 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 210 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 211 | } |
54bd5b66 | 212 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 213 | |
54bd5b66 KS |
214 | static ssize_t show_contrast(struct device *cd, |
215 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 216 | { |
c5f48367 | 217 | struct video_device *vdev = |
22a04f10 | 218 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
219 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
220 | struct v4l2_control ctrl; | |
221 | ctrl.id = V4L2_CID_CONTRAST; | |
222 | ctrl.value = 0; | |
ed00b41d | 223 | if(usbvision->user) |
1df79537 | 224 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 225 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 226 | } |
54bd5b66 | 227 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 228 | |
54bd5b66 KS |
229 | static ssize_t show_brightness(struct device *cd, |
230 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 231 | { |
c5f48367 | 232 | struct video_device *vdev = |
22a04f10 | 233 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
234 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
235 | struct v4l2_control ctrl; | |
236 | ctrl.id = V4L2_CID_BRIGHTNESS; | |
237 | ctrl.value = 0; | |
ed00b41d | 238 | if(usbvision->user) |
1df79537 | 239 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 240 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 241 | } |
54bd5b66 | 242 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 243 | |
54bd5b66 KS |
244 | static ssize_t show_saturation(struct device *cd, |
245 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 246 | { |
c5f48367 | 247 | struct video_device *vdev = |
22a04f10 | 248 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
249 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
250 | struct v4l2_control ctrl; | |
251 | ctrl.id = V4L2_CID_SATURATION; | |
252 | ctrl.value = 0; | |
ed00b41d | 253 | if(usbvision->user) |
1df79537 | 254 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 255 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 256 | } |
54bd5b66 | 257 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 258 | |
54bd5b66 KS |
259 | static ssize_t show_streaming(struct device *cd, |
260 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 261 | { |
c5f48367 | 262 | struct video_device *vdev = |
22a04f10 | 263 | container_of(cd, struct video_device, dev); |
483dfdb6 | 264 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 265 | return sprintf(buf, "%s\n", |
5490a7cb | 266 | YES_NO(usbvision->streaming==stream_on?1:0)); |
483dfdb6 | 267 | } |
54bd5b66 | 268 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 269 | |
54bd5b66 KS |
270 | static ssize_t show_compression(struct device *cd, |
271 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 272 | { |
c5f48367 | 273 | struct video_device *vdev = |
22a04f10 | 274 | container_of(cd, struct video_device, dev); |
483dfdb6 | 275 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 276 | return sprintf(buf, "%s\n", |
5490a7cb | 277 | YES_NO(usbvision->isoc_mode==ISOC_MODE_COMPRESS)); |
483dfdb6 | 278 | } |
54bd5b66 | 279 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 280 | |
54bd5b66 KS |
281 | static ssize_t show_device_bridge(struct device *cd, |
282 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 283 | { |
c5f48367 | 284 | struct video_device *vdev = |
22a04f10 | 285 | container_of(cd, struct video_device, dev); |
483dfdb6 | 286 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 287 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 288 | } |
54bd5b66 | 289 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
290 | |
291 | static void usbvision_create_sysfs(struct video_device *vdev) | |
292 | { | |
293 | int res; | |
ed00b41d DG |
294 | if (!vdev) |
295 | return; | |
296 | do { | |
22a04f10 | 297 | res = device_create_file(&vdev->dev, &dev_attr_version); |
ed00b41d DG |
298 | if (res<0) |
299 | break; | |
22a04f10 | 300 | res = device_create_file(&vdev->dev, &dev_attr_model); |
ed00b41d DG |
301 | if (res<0) |
302 | break; | |
22a04f10 | 303 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
ed00b41d DG |
304 | if (res<0) |
305 | break; | |
22a04f10 | 306 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
ed00b41d DG |
307 | if (res<0) |
308 | break; | |
22a04f10 | 309 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
ed00b41d DG |
310 | if (res<0) |
311 | break; | |
22a04f10 | 312 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
ed00b41d DG |
313 | if (res<0) |
314 | break; | |
22a04f10 | 315 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
ed00b41d DG |
316 | if (res<0) |
317 | break; | |
22a04f10 | 318 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
ed00b41d DG |
319 | if (res<0) |
320 | break; | |
22a04f10 | 321 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
ed00b41d DG |
322 | if (res>=0) |
323 | return; | |
324 | } while (0); | |
325 | ||
be9ed511 | 326 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
327 | } |
328 | ||
329 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
330 | { | |
331 | if (vdev) { | |
22a04f10 HV |
332 | device_remove_file(&vdev->dev, &dev_attr_version); |
333 | device_remove_file(&vdev->dev, &dev_attr_model); | |
334 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
335 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
336 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
337 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
338 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
339 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
340 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
341 | } |
342 | } | |
343 | ||
483dfdb6 TM |
344 | /* |
345 | * usbvision_open() | |
346 | * | |
347 | * This is part of Video 4 Linux API. The driver can be opened by one | |
348 | * client only (checks internal counter 'usbvision->user'). The procedure | |
349 | * then allocates buffers needed for video processing. | |
350 | * | |
351 | */ | |
bec43661 | 352 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 353 | { |
c170ecf4 | 354 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 355 | int err_code = 0; |
483dfdb6 TM |
356 | |
357 | PDEBUG(DBG_IO, "open"); | |
358 | ||
5490a7cb | 359 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
360 | |
361 | if (usbvision->user) | |
5490a7cb | 362 | err_code = -EBUSY; |
483dfdb6 | 363 | else { |
6f78e186 | 364 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb HV |
365 | err_code = usbvision_scratch_alloc(usbvision); |
366 | if (isoc_mode==ISOC_MODE_COMPRESS) { | |
c5f48367 TM |
367 | /* Allocate intermediate decompression buffers |
368 | only if needed */ | |
5490a7cb | 369 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 370 | } |
5490a7cb | 371 | if (err_code) { |
483dfdb6 | 372 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 373 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
374 | usbvision_decompress_free(usbvision); |
375 | } | |
376 | } | |
377 | ||
378 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 379 | if (!err_code) { |
483dfdb6 TM |
380 | if (usbvision->power == 0) { |
381 | usbvision_power_on(usbvision); | |
1ff16c20 | 382 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
383 | } |
384 | ||
385 | /* Send init sequence only once, it's large! */ | |
386 | if (!usbvision->initialized) { | |
387 | int setup_ok = 0; | |
5490a7cb | 388 | setup_ok = usbvision_setup(usbvision,isoc_mode); |
483dfdb6 TM |
389 | if (setup_ok) |
390 | usbvision->initialized = 1; | |
391 | else | |
5490a7cb | 392 | err_code = -EBUSY; |
483dfdb6 TM |
393 | } |
394 | ||
5490a7cb | 395 | if (!err_code) { |
483dfdb6 | 396 | usbvision_begin_streaming(usbvision); |
5490a7cb | 397 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 398 | /* device must be initialized before isoc transfer */ |
483dfdb6 TM |
399 | usbvision_muxsel(usbvision,0); |
400 | usbvision->user++; | |
c5f48367 | 401 | } else { |
5490a7cb | 402 | if (power_on_at_open) { |
1ff16c20 | 403 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
404 | usbvision_power_off(usbvision); |
405 | usbvision->initialized = 0; | |
406 | } | |
407 | } | |
483dfdb6 TM |
408 | } |
409 | ||
483dfdb6 TM |
410 | /* prepare queues */ |
411 | usbvision_empty_framequeues(usbvision); | |
412 | ||
413 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 414 | return err_code; |
483dfdb6 TM |
415 | } |
416 | ||
417 | /* | |
418 | * usbvision_v4l2_close() | |
419 | * | |
420 | * This is part of Video 4 Linux API. The procedure | |
421 | * stops streaming and deallocates all buffers that were earlier | |
422 | * allocated in usbvision_v4l2_open(). | |
423 | * | |
424 | */ | |
bec43661 | 425 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 426 | { |
c170ecf4 | 427 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
428 | |
429 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 TM |
430 | |
431 | usbvision_audio_off(usbvision); | |
432 | usbvision_restart_isoc(usbvision); | |
433 | usbvision_stop_isoc(usbvision); | |
434 | ||
435 | usbvision_decompress_free(usbvision); | |
38284ba3 | 436 | usbvision_frames_free(usbvision); |
6f78e186 | 437 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 438 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
439 | |
440 | usbvision->user--; | |
441 | ||
5490a7cb | 442 | if (power_on_at_open) { |
c5f48367 TM |
443 | /* power off in a little while |
444 | to avoid off/on every close/open short sequences */ | |
5490a7cb | 445 | usbvision_set_power_off_timer(usbvision); |
483dfdb6 TM |
446 | usbvision->initialized = 0; |
447 | } | |
448 | ||
483dfdb6 | 449 | if (usbvision->remove_pending) { |
d2db42dd | 450 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
451 | usbvision_release(usbvision); |
452 | } | |
453 | ||
454 | PDEBUG(DBG_IO, "success"); | |
483dfdb6 TM |
455 | return 0; |
456 | } | |
457 | ||
458 | ||
459 | /* | |
460 | * usbvision_ioctl() | |
461 | * | |
462 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
463 | * | |
464 | */ | |
c5f48367 TM |
465 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
466 | static int vidioc_g_register (struct file *file, void *priv, | |
aecde8b5 | 467 | struct v4l2_dbg_register *reg) |
483dfdb6 | 468 | { |
c170ecf4 | 469 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 470 | int err_code; |
483dfdb6 | 471 | |
aecde8b5 | 472 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
473 | return -EINVAL; |
474 | /* NT100x has a 8-bit register space */ | |
5490a7cb HV |
475 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
476 | if (err_code < 0) { | |
be9ed511 MCC |
477 | dev_err(&usbvision->vdev->dev, |
478 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", | |
5490a7cb HV |
479 | __func__, err_code); |
480 | return err_code; | |
c5f48367 | 481 | } |
5490a7cb | 482 | reg->val = err_code; |
aecde8b5 | 483 | reg->size = 1; |
c5f48367 TM |
484 | return 0; |
485 | } | |
483dfdb6 | 486 | |
c5f48367 | 487 | static int vidioc_s_register (struct file *file, void *priv, |
aecde8b5 | 488 | struct v4l2_dbg_register *reg) |
c5f48367 | 489 | { |
c170ecf4 | 490 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 491 | int err_code; |
62d50add | 492 | |
aecde8b5 | 493 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
494 | return -EINVAL; |
495 | /* NT100x has a 8-bit register space */ | |
5490a7cb HV |
496 | err_code = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); |
497 | if (err_code < 0) { | |
be9ed511 MCC |
498 | dev_err(&usbvision->vdev->dev, |
499 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", | |
5490a7cb HV |
500 | __func__, err_code); |
501 | return err_code; | |
c5f48367 TM |
502 | } |
503 | return 0; | |
504 | } | |
483dfdb6 | 505 | #endif |
c5f48367 TM |
506 | |
507 | static int vidioc_querycap (struct file *file, void *priv, | |
508 | struct v4l2_capability *vc) | |
509 | { | |
c170ecf4 | 510 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
511 | |
512 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
513 | strlcpy(vc->card, | |
5490a7cb | 514 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 515 | sizeof(vc->card)); |
6f2a2781 | 516 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
c5f48367 TM |
517 | vc->version = USBVISION_DRIVER_VERSION; |
518 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
519 | V4L2_CAP_AUDIO | | |
520 | V4L2_CAP_READWRITE | | |
521 | V4L2_CAP_STREAMING | | |
522 | (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); | |
523 | return 0; | |
524 | } | |
525 | ||
526 | static int vidioc_enum_input (struct file *file, void *priv, | |
527 | struct v4l2_input *vi) | |
528 | { | |
c170ecf4 | 529 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
530 | int chan; |
531 | ||
223ffe5f | 532 | if (vi->index >= usbvision->video_inputs) |
c5f48367 TM |
533 | return -EINVAL; |
534 | if (usbvision->have_tuner) { | |
535 | chan = vi->index; | |
536 | } else { | |
537 | chan = vi->index + 1; /*skip Television string*/ | |
538 | } | |
539 | /* Determine the requested input characteristics | |
540 | specific for each usbvision card model */ | |
541 | switch(chan) { | |
542 | case 0: | |
5490a7cb | 543 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
544 | strcpy(vi->name, "White Video Input"); |
545 | } else { | |
546 | strcpy(vi->name, "Television"); | |
547 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
548 | vi->audioset = 1; | |
549 | vi->tuner = chan; | |
550 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 551 | } |
c5f48367 TM |
552 | break; |
553 | case 1: | |
554 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
5490a7cb | 555 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
556 | strcpy(vi->name, "Green Video Input"); |
557 | } else { | |
558 | strcpy(vi->name, "Composite Video Input"); | |
483dfdb6 | 559 | } |
c5f48367 TM |
560 | vi->std = V4L2_STD_PAL; |
561 | break; | |
562 | case 2: | |
563 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
5490a7cb | 564 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
565 | strcpy(vi->name, "Yellow Video Input"); |
566 | } else { | |
567 | strcpy(vi->name, "S-Video Input"); | |
483dfdb6 | 568 | } |
c5f48367 TM |
569 | vi->std = V4L2_STD_PAL; |
570 | break; | |
571 | case 3: | |
572 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
573 | strcpy(vi->name, "Red Video Input"); | |
574 | vi->std = V4L2_STD_PAL; | |
575 | break; | |
576 | } | |
577 | return 0; | |
578 | } | |
483dfdb6 | 579 | |
c5f48367 TM |
580 | static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) |
581 | { | |
c170ecf4 | 582 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 583 | |
c5f48367 TM |
584 | *input = usbvision->ctl_input; |
585 | return 0; | |
586 | } | |
483dfdb6 | 587 | |
c5f48367 TM |
588 | static int vidioc_s_input (struct file *file, void *priv, unsigned int input) |
589 | { | |
c170ecf4 | 590 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 591 | |
f14a2972 | 592 | if (input >= usbvision->video_inputs) |
c5f48367 | 593 | return -EINVAL; |
483dfdb6 | 594 | |
66a17879 | 595 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
596 | usbvision_set_input(usbvision); |
597 | usbvision_set_output(usbvision, | |
598 | usbvision->curwidth, | |
599 | usbvision->curheight); | |
c5f48367 TM |
600 | return 0; |
601 | } | |
483dfdb6 | 602 | |
c5f48367 TM |
603 | static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) |
604 | { | |
c170ecf4 HV |
605 | struct usb_usbvision *usbvision = video_drvdata(file); |
606 | ||
5490a7cb | 607 | usbvision->tvnorm_id=*id; |
483dfdb6 | 608 | |
5490a7cb | 609 | call_all(usbvision, core, s_std, usbvision->tvnorm_id); |
66a17879 TM |
610 | /* propagate the change to the decoder */ |
611 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 612 | |
c5f48367 TM |
613 | return 0; |
614 | } | |
483dfdb6 | 615 | |
c5f48367 TM |
616 | static int vidioc_g_tuner (struct file *file, void *priv, |
617 | struct v4l2_tuner *vt) | |
618 | { | |
c170ecf4 | 619 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 620 | |
c5f48367 TM |
621 | if (!usbvision->have_tuner || vt->index) // Only tuner 0 |
622 | return -EINVAL; | |
623 | if(usbvision->radio) { | |
624 | strcpy(vt->name, "Radio"); | |
625 | vt->type = V4L2_TUNER_RADIO; | |
626 | } else { | |
627 | strcpy(vt->name, "Television"); | |
628 | } | |
629 | /* Let clients fill in the remainder of this struct */ | |
1df79537 | 630 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 631 | |
c5f48367 TM |
632 | return 0; |
633 | } | |
483dfdb6 | 634 | |
c5f48367 TM |
635 | static int vidioc_s_tuner (struct file *file, void *priv, |
636 | struct v4l2_tuner *vt) | |
637 | { | |
c170ecf4 | 638 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 639 | |
c5f48367 TM |
640 | // Only no or one tuner for now |
641 | if (!usbvision->have_tuner || vt->index) | |
642 | return -EINVAL; | |
643 | /* let clients handle this */ | |
1df79537 | 644 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 645 | |
c5f48367 TM |
646 | return 0; |
647 | } | |
483dfdb6 | 648 | |
c5f48367 TM |
649 | static int vidioc_g_frequency (struct file *file, void *priv, |
650 | struct v4l2_frequency *freq) | |
651 | { | |
c170ecf4 | 652 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 653 | |
c5f48367 TM |
654 | freq->tuner = 0; // Only one tuner |
655 | if(usbvision->radio) { | |
656 | freq->type = V4L2_TUNER_RADIO; | |
657 | } else { | |
658 | freq->type = V4L2_TUNER_ANALOG_TV; | |
659 | } | |
660 | freq->frequency = usbvision->freq; | |
483dfdb6 | 661 | |
c5f48367 TM |
662 | return 0; |
663 | } | |
483dfdb6 | 664 | |
c5f48367 TM |
665 | static int vidioc_s_frequency (struct file *file, void *priv, |
666 | struct v4l2_frequency *freq) | |
667 | { | |
c170ecf4 | 668 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 669 | |
c5f48367 TM |
670 | // Only no or one tuner for now |
671 | if (!usbvision->have_tuner || freq->tuner) | |
672 | return -EINVAL; | |
483dfdb6 | 673 | |
c5f48367 | 674 | usbvision->freq = freq->frequency; |
1df79537 | 675 | call_all(usbvision, tuner, s_frequency, freq); |
483dfdb6 | 676 | |
c5f48367 TM |
677 | return 0; |
678 | } | |
483dfdb6 | 679 | |
c5f48367 TM |
680 | static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) |
681 | { | |
c170ecf4 | 682 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 683 | |
c5f48367 TM |
684 | if(usbvision->radio) { |
685 | strcpy(a->name,"Radio"); | |
686 | } else { | |
687 | strcpy(a->name, "TV"); | |
688 | } | |
483dfdb6 | 689 | |
c5f48367 TM |
690 | return 0; |
691 | } | |
483dfdb6 | 692 | |
c5f48367 TM |
693 | static int vidioc_s_audio (struct file *file, void *fh, |
694 | struct v4l2_audio *a) | |
695 | { | |
696 | if(a->index) { | |
697 | return -EINVAL; | |
698 | } | |
483dfdb6 | 699 | |
c5f48367 TM |
700 | return 0; |
701 | } | |
483dfdb6 | 702 | |
c5f48367 TM |
703 | static int vidioc_queryctrl (struct file *file, void *priv, |
704 | struct v4l2_queryctrl *ctrl) | |
705 | { | |
c170ecf4 | 706 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 707 | |
1df79537 | 708 | call_all(usbvision, core, queryctrl, ctrl); |
483dfdb6 | 709 | |
c5f48367 TM |
710 | if (!ctrl->type) |
711 | return -EINVAL; | |
483dfdb6 | 712 | |
c5f48367 TM |
713 | return 0; |
714 | } | |
483dfdb6 | 715 | |
c5f48367 TM |
716 | static int vidioc_g_ctrl (struct file *file, void *priv, |
717 | struct v4l2_control *ctrl) | |
718 | { | |
c170ecf4 | 719 | struct usb_usbvision *usbvision = video_drvdata(file); |
1df79537 | 720 | call_all(usbvision, core, g_ctrl, ctrl); |
483dfdb6 | 721 | |
c5f48367 TM |
722 | return 0; |
723 | } | |
724 | ||
725 | static int vidioc_s_ctrl (struct file *file, void *priv, | |
726 | struct v4l2_control *ctrl) | |
727 | { | |
c170ecf4 | 728 | struct usb_usbvision *usbvision = video_drvdata(file); |
1df79537 | 729 | call_all(usbvision, core, s_ctrl, ctrl); |
c5f48367 TM |
730 | |
731 | return 0; | |
732 | } | |
733 | ||
734 | static int vidioc_reqbufs (struct file *file, | |
735 | void *priv, struct v4l2_requestbuffers *vr) | |
736 | { | |
c170ecf4 | 737 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
738 | int ret; |
739 | ||
740 | RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); | |
741 | ||
742 | /* Check input validity: | |
743 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 744 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
745 | return -EINVAL; |
746 | ||
5490a7cb | 747 | if(usbvision->streaming == stream_on) { |
c5f48367 TM |
748 | if ((ret = usbvision_stream_interrupt(usbvision))) |
749 | return ret; | |
483dfdb6 | 750 | } |
c5f48367 TM |
751 | |
752 | usbvision_frames_free(usbvision); | |
753 | usbvision_empty_framequeues(usbvision); | |
754 | vr->count = usbvision_frames_alloc(usbvision,vr->count); | |
755 | ||
5490a7cb | 756 | usbvision->cur_frame = NULL; |
c5f48367 | 757 | |
483dfdb6 TM |
758 | return 0; |
759 | } | |
760 | ||
c5f48367 TM |
761 | static int vidioc_querybuf (struct file *file, |
762 | void *priv, struct v4l2_buffer *vb) | |
483dfdb6 | 763 | { |
c170ecf4 | 764 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
765 | struct usbvision_frame *frame; |
766 | ||
767 | /* FIXME : must control | |
768 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
c5f48367 TM |
769 | if(vb->index>=usbvision->num_frames) { |
770 | return -EINVAL; | |
771 | } | |
772 | /* Updating the corresponding frame state */ | |
773 | vb->flags = 0; | |
774 | frame = &usbvision->frame[vb->index]; | |
5490a7cb | 775 | if(frame->grabstate >= frame_state_ready) |
c5f48367 | 776 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
5490a7cb | 777 | if(frame->grabstate >= frame_state_done) |
c5f48367 | 778 | vb->flags |= V4L2_BUF_FLAG_DONE; |
5490a7cb | 779 | if(frame->grabstate == frame_state_unused) |
c5f48367 TM |
780 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
781 | vb->memory = V4L2_MEMORY_MMAP; | |
782 | ||
783 | vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); | |
784 | ||
785 | vb->memory = V4L2_MEMORY_MMAP; | |
786 | vb->field = V4L2_FIELD_NONE; | |
787 | vb->length = usbvision->curwidth* | |
788 | usbvision->curheight* | |
789 | usbvision->palette.bytes_per_pixel; | |
790 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
791 | vb->sequence = usbvision->frame[vb->index].sequence; | |
792 | return 0; | |
483dfdb6 TM |
793 | } |
794 | ||
c5f48367 TM |
795 | static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) |
796 | { | |
c170ecf4 | 797 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
798 | struct usbvision_frame *frame; |
799 | unsigned long lock_flags; | |
800 | ||
801 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
c5f48367 TM |
802 | if(vb->index>=usbvision->num_frames) { |
803 | return -EINVAL; | |
804 | } | |
805 | ||
806 | frame = &usbvision->frame[vb->index]; | |
807 | ||
5490a7cb | 808 | if (frame->grabstate != frame_state_unused) { |
c5f48367 TM |
809 | return -EAGAIN; |
810 | } | |
811 | ||
812 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
813 | frame->grabstate = frame_state_ready; |
814 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
815 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
816 | ||
817 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
818 | ||
819 | /* set v4l2_format index */ | |
820 | frame->v4l2_format = usbvision->palette; | |
821 | ||
822 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
823 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
824 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) | |
830 | { | |
c170ecf4 | 831 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
832 | int ret; |
833 | struct usbvision_frame *f; | |
834 | unsigned long lock_flags; | |
835 | ||
c5f48367 | 836 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 837 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
838 | return -EINVAL; |
839 | ret = wait_event_interruptible | |
840 | (usbvision->wait_frame, | |
841 | !list_empty(&(usbvision->outqueue))); | |
842 | if (ret) | |
843 | return ret; | |
844 | } | |
845 | ||
846 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
847 | f = list_entry(usbvision->outqueue.next, | |
848 | struct usbvision_frame, frame); | |
849 | list_del(usbvision->outqueue.next); | |
850 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
851 | ||
5490a7cb | 852 | f->grabstate = frame_state_unused; |
c5f48367 TM |
853 | |
854 | vb->memory = V4L2_MEMORY_MMAP; | |
855 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
856 | V4L2_BUF_FLAG_QUEUED | | |
857 | V4L2_BUF_FLAG_DONE; | |
858 | vb->index = f->index; | |
859 | vb->sequence = f->sequence; | |
860 | vb->timestamp = f->timestamp; | |
861 | vb->field = V4L2_FIELD_NONE; | |
862 | vb->bytesused = f->scanlength; | |
863 | ||
864 | return 0; | |
865 | } | |
866 | ||
867 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
868 | { | |
c170ecf4 | 869 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 870 | |
5490a7cb | 871 | usbvision->streaming = stream_on; |
1df79537 | 872 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
873 | |
874 | return 0; | |
875 | } | |
876 | ||
877 | static int vidioc_streamoff(struct file *file, | |
878 | void *priv, enum v4l2_buf_type type) | |
879 | { | |
c170ecf4 | 880 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
881 | |
882 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
883 | return -EINVAL; | |
884 | ||
5490a7cb | 885 | if(usbvision->streaming == stream_on) { |
c5f48367 TM |
886 | usbvision_stream_interrupt(usbvision); |
887 | /* Stop all video streamings */ | |
1df79537 | 888 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
889 | } |
890 | usbvision_empty_framequeues(usbvision); | |
891 | ||
892 | return 0; | |
893 | } | |
894 | ||
78b526a4 | 895 | static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, |
c5f48367 TM |
896 | struct v4l2_fmtdesc *vfd) |
897 | { | |
898 | if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { | |
899 | return -EINVAL; | |
900 | } | |
c5f48367 TM |
901 | strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); |
902 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; | |
c5f48367 TM |
903 | return 0; |
904 | } | |
905 | ||
78b526a4 | 906 | static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, |
c5f48367 TM |
907 | struct v4l2_format *vf) |
908 | { | |
c170ecf4 | 909 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
910 | vf->fmt.pix.width = usbvision->curwidth; |
911 | vf->fmt.pix.height = usbvision->curheight; | |
912 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
913 | vf->fmt.pix.bytesperline = | |
914 | usbvision->curwidth*usbvision->palette.bytes_per_pixel; | |
915 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; | |
916 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
917 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
918 | ||
919 | return 0; | |
920 | } | |
921 | ||
78b526a4 | 922 | static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, |
c5f48367 TM |
923 | struct v4l2_format *vf) |
924 | { | |
c170ecf4 | 925 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 926 | int format_idx; |
c5f48367 TM |
927 | |
928 | /* Find requested format in available ones */ | |
5490a7cb | 929 | for(format_idx=0;format_idx<USBVISION_SUPPORTED_PALETTES;format_idx++) { |
c5f48367 | 930 | if(vf->fmt.pix.pixelformat == |
5490a7cb HV |
931 | usbvision_v4l2_format[format_idx].format) { |
932 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
933 | break; |
934 | } | |
935 | } | |
936 | /* robustness */ | |
5490a7cb | 937 | if(format_idx == USBVISION_SUPPORTED_PALETTES) { |
c5f48367 TM |
938 | return -EINVAL; |
939 | } | |
940 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); | |
941 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
942 | ||
943 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
944 | usbvision->palette.bytes_per_pixel; | |
945 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
946 | ||
947 | return 0; | |
948 | } | |
949 | ||
78b526a4 | 950 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
951 | struct v4l2_format *vf) |
952 | { | |
c170ecf4 | 953 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
954 | int ret; |
955 | ||
78b526a4 | 956 | if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) { |
c5f48367 TM |
957 | return ret; |
958 | } | |
959 | ||
960 | /* stop io in case it is already in progress */ | |
5490a7cb | 961 | if(usbvision->streaming == stream_on) { |
c5f48367 TM |
962 | if ((ret = usbvision_stream_interrupt(usbvision))) |
963 | return ret; | |
964 | } | |
965 | usbvision_frames_free(usbvision); | |
966 | usbvision_empty_framequeues(usbvision); | |
967 | ||
5490a7cb | 968 | usbvision->cur_frame = NULL; |
c5f48367 TM |
969 | |
970 | /* by now we are committed to the new data... */ | |
c5f48367 | 971 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
972 | |
973 | return 0; | |
974 | } | |
483dfdb6 | 975 | |
8a5ab415 | 976 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
483dfdb6 TM |
977 | size_t count, loff_t *ppos) |
978 | { | |
c170ecf4 | 979 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
980 | int noblock = file->f_flags & O_NONBLOCK; |
981 | unsigned long lock_flags; | |
982 | ||
483dfdb6 TM |
983 | int ret,i; |
984 | struct usbvision_frame *frame; | |
985 | ||
d2db42dd | 986 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 987 | (unsigned long)count, noblock); |
483dfdb6 TM |
988 | |
989 | if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) | |
990 | return -EFAULT; | |
991 | ||
c5f48367 TM |
992 | /* This entry point is compatible with the mmap routines |
993 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
994 | to get frames or call read on the device. */ | |
6f78e186 | 995 | if(!usbvision->num_frames) { |
c5f48367 TM |
996 | /* First, allocate some frames to work with |
997 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
998 | usbvision_frames_free(usbvision); |
999 | usbvision_empty_framequeues(usbvision); | |
1000 | usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); | |
1001 | } | |
1002 | ||
5490a7cb | 1003 | if(usbvision->streaming != stream_on) { |
6f78e186 | 1004 | /* no stream is running, make it running ! */ |
5490a7cb | 1005 | usbvision->streaming = stream_on; |
1df79537 | 1006 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 1007 | } |
483dfdb6 | 1008 | |
c5f48367 TM |
1009 | /* Then, enqueue as many frames as possible |
1010 | (like a user of VIDIOC_QBUF would do) */ | |
6f78e186 | 1011 | for(i=0;i<usbvision->num_frames;i++) { |
483dfdb6 | 1012 | frame = &usbvision->frame[i]; |
5490a7cb | 1013 | if(frame->grabstate == frame_state_unused) { |
483dfdb6 | 1014 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
1015 | frame->grabstate = frame_state_ready; |
1016 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
1017 | /* Accumulated in usbvision_parse_data() */ |
1018 | frame->scanlength = 0; | |
483dfdb6 TM |
1019 | |
1020 | /* set v4l2_format index */ | |
1021 | frame->v4l2_format = usbvision->palette; | |
1022 | ||
1023 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1024 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
1025 | spin_unlock_irqrestore(&usbvision->queue_lock, |
1026 | lock_flags); | |
483dfdb6 TM |
1027 | } |
1028 | } | |
1029 | ||
1030 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
1031 | if (list_empty(&(usbvision->outqueue))) { | |
1032 | if(noblock) | |
1033 | return -EAGAIN; | |
1034 | ||
1035 | ret = wait_event_interruptible | |
1036 | (usbvision->wait_frame, | |
1037 | !list_empty(&(usbvision->outqueue))); | |
1038 | if (ret) | |
1039 | return ret; | |
1040 | } | |
1041 | ||
1042 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1043 | frame = list_entry(usbvision->outqueue.next, | |
1044 | struct usbvision_frame, frame); | |
1045 | list_del(usbvision->outqueue.next); | |
1046 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1047 | ||
1048 | /* An error returns an empty frame */ | |
5490a7cb | 1049 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
1050 | frame->bytes_read = 0; |
1051 | return 0; | |
1052 | } | |
1053 | ||
c5f48367 | 1054 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 1055 | __func__, |
c5f48367 | 1056 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
1057 | |
1058 | /* copy bytes to user space; we allow for partials reads */ | |
1059 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
1060 | count = frame->scanlength - frame->bytes_read; | |
1061 | ||
1062 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { | |
1063 | return -EFAULT; | |
1064 | } | |
1065 | ||
1066 | frame->bytes_read += count; | |
c5f48367 | 1067 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 1068 | __func__, |
c5f48367 | 1069 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 1070 | |
c5f48367 | 1071 | /* For now, forget the frame if it has not been read in one shot. */ |
483dfdb6 TM |
1072 | /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ |
1073 | frame->bytes_read = 0; | |
1074 | ||
1075 | /* Mark it as available to be used again. */ | |
5490a7cb | 1076 | frame->grabstate = frame_state_unused; |
483dfdb6 TM |
1077 | /* } */ |
1078 | ||
1079 | return count; | |
1080 | } | |
1081 | ||
1082 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) | |
1083 | { | |
1084 | unsigned long size = vma->vm_end - vma->vm_start, | |
1085 | start = vma->vm_start; | |
1086 | void *pos; | |
1087 | u32 i; | |
c170ecf4 | 1088 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1089 | |
6f78e186 TM |
1090 | PDEBUG(DBG_MMAP, "mmap"); |
1091 | ||
483dfdb6 | 1092 | if (!USBVISION_IS_OPERATIONAL(usbvision)) { |
483dfdb6 TM |
1093 | return -EFAULT; |
1094 | } | |
1095 | ||
1096 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1097 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1098 | return -EINVAL; |
1099 | } | |
1100 | ||
6f78e186 | 1101 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1102 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1103 | vma->vm_pgoff) | |
483dfdb6 TM |
1104 | break; |
1105 | } | |
6f78e186 | 1106 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1107 | PDEBUG(DBG_MMAP, |
1108 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1109 | return -EINVAL; |
1110 | } | |
1111 | ||
1112 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
1113 | vma->vm_flags |= VM_IO; | |
1114 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
1115 | ||
1116 | pos = usbvision->frame[i].data; | |
1117 | while (size > 0) { | |
1118 | ||
1119 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { | |
c876a346 | 1120 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1121 | return -EAGAIN; |
1122 | } | |
1123 | start += PAGE_SIZE; | |
1124 | pos += PAGE_SIZE; | |
1125 | size -= PAGE_SIZE; | |
1126 | } | |
1127 | ||
483dfdb6 TM |
1128 | return 0; |
1129 | } | |
1130 | ||
1131 | ||
1132 | /* | |
1133 | * Here comes the stuff for radio on usbvision based devices | |
1134 | * | |
1135 | */ | |
bec43661 | 1136 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1137 | { |
c170ecf4 | 1138 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1139 | int err_code = 0; |
483dfdb6 | 1140 | |
d2db42dd | 1141 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1142 | |
483dfdb6 | 1143 | if (usbvision->user) { |
be9ed511 MCC |
1144 | dev_err(&usbvision->rdev->dev, |
1145 | "%s: Someone tried to open an already opened USBVision Radio!\n", | |
1146 | __func__); | |
5490a7cb | 1147 | err_code = -EBUSY; |
483dfdb6 TM |
1148 | } |
1149 | else { | |
5490a7cb HV |
1150 | if(power_on_at_open) { |
1151 | usbvision_reset_power_off_timer(usbvision); | |
483dfdb6 TM |
1152 | if (usbvision->power == 0) { |
1153 | usbvision_power_on(usbvision); | |
1ff16c20 | 1154 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1155 | } |
1156 | } | |
1157 | ||
2a9f8b5d | 1158 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1159 | err_code = usbvision_set_alternate(usbvision); |
1160 | if (err_code < 0) { | |
1161 | usbvision->last_error = err_code; | |
1162 | err_code = -EBUSY; | |
544e6175 | 1163 | goto out; |
2a9f8b5d TM |
1164 | } |
1165 | ||
483dfdb6 TM |
1166 | // If so far no errors then we shall start the radio |
1167 | usbvision->radio = 1; | |
1df79537 | 1168 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1169 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1170 | usbvision->user++; | |
1171 | } | |
1172 | ||
5490a7cb HV |
1173 | if (err_code) { |
1174 | if (power_on_at_open) { | |
1ff16c20 | 1175 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1176 | usbvision_power_off(usbvision); |
1177 | usbvision->initialized = 0; | |
1178 | } | |
1179 | } | |
544e6175 | 1180 | out: |
5490a7cb | 1181 | return err_code; |
483dfdb6 TM |
1182 | } |
1183 | ||
1184 | ||
bec43661 | 1185 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1186 | { |
c170ecf4 | 1187 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1188 | int err_code = 0; |
483dfdb6 TM |
1189 | |
1190 | PDEBUG(DBG_IO, ""); | |
1191 | ||
2a9f8b5d | 1192 | /* Set packet size to 0 */ |
5490a7cb HV |
1193 | usbvision->iface_alt=0; |
1194 | err_code = usb_set_interface(usbvision->dev, usbvision->iface, | |
1195 | usbvision->iface_alt); | |
2a9f8b5d | 1196 | |
483dfdb6 TM |
1197 | usbvision_audio_off(usbvision); |
1198 | usbvision->radio=0; | |
1199 | usbvision->user--; | |
1200 | ||
5490a7cb HV |
1201 | if (power_on_at_open) { |
1202 | usbvision_set_power_off_timer(usbvision); | |
483dfdb6 TM |
1203 | usbvision->initialized = 0; |
1204 | } | |
1205 | ||
483dfdb6 | 1206 | if (usbvision->remove_pending) { |
d2db42dd | 1207 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
1208 | usbvision_release(usbvision); |
1209 | } | |
1210 | ||
483dfdb6 | 1211 | PDEBUG(DBG_IO, "success"); |
5490a7cb | 1212 | return err_code; |
483dfdb6 TM |
1213 | } |
1214 | ||
483dfdb6 TM |
1215 | // |
1216 | // Video registration stuff | |
1217 | // | |
1218 | ||
1219 | // Video template | |
bec43661 | 1220 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1221 | .owner = THIS_MODULE, |
483dfdb6 TM |
1222 | .open = usbvision_v4l2_open, |
1223 | .release = usbvision_v4l2_close, | |
1224 | .read = usbvision_v4l2_read, | |
1225 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1226 | .unlocked_ioctl = video_ioctl2, |
c5f48367 | 1227 | /* .poll = video_poll, */ |
483dfdb6 | 1228 | }; |
a399810c HV |
1229 | |
1230 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1231 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1232 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1233 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1234 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1235 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1236 | .vidioc_reqbufs = vidioc_reqbufs, |
1237 | .vidioc_querybuf = vidioc_querybuf, | |
1238 | .vidioc_qbuf = vidioc_qbuf, | |
1239 | .vidioc_dqbuf = vidioc_dqbuf, | |
1240 | .vidioc_s_std = vidioc_s_std, | |
1241 | .vidioc_enum_input = vidioc_enum_input, | |
1242 | .vidioc_g_input = vidioc_g_input, | |
1243 | .vidioc_s_input = vidioc_s_input, | |
1244 | .vidioc_queryctrl = vidioc_queryctrl, | |
1245 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1246 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1247 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1248 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1249 | .vidioc_streamon = vidioc_streamon, | |
1250 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1251 | .vidioc_g_tuner = vidioc_g_tuner, |
1252 | .vidioc_s_tuner = vidioc_s_tuner, | |
1253 | .vidioc_g_frequency = vidioc_g_frequency, | |
1254 | .vidioc_s_frequency = vidioc_s_frequency, | |
1255 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1256 | .vidioc_g_register = vidioc_g_register, | |
1257 | .vidioc_s_register = vidioc_s_register, | |
1258 | #endif | |
a399810c HV |
1259 | }; |
1260 | ||
1261 | static struct video_device usbvision_video_template = { | |
a399810c HV |
1262 | .fops = &usbvision_fops, |
1263 | .ioctl_ops = &usbvision_ioctl_ops, | |
1264 | .name = "usbvision-video", | |
1265 | .release = video_device_release, | |
c5f48367 TM |
1266 | .tvnorms = USBVISION_NORMS, |
1267 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1268 | }; |
1269 | ||
1270 | ||
1271 | // Radio template | |
bec43661 | 1272 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1273 | .owner = THIS_MODULE, |
483dfdb6 TM |
1274 | .open = usbvision_radio_open, |
1275 | .release = usbvision_radio_close, | |
c627b9d1 | 1276 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1277 | }; |
1278 | ||
a399810c | 1279 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 TM |
1280 | .vidioc_querycap = vidioc_querycap, |
1281 | .vidioc_enum_input = vidioc_enum_input, | |
1282 | .vidioc_g_input = vidioc_g_input, | |
1283 | .vidioc_s_input = vidioc_s_input, | |
1284 | .vidioc_queryctrl = vidioc_queryctrl, | |
1285 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1286 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1287 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1288 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1289 | .vidioc_g_tuner = vidioc_g_tuner, | |
1290 | .vidioc_s_tuner = vidioc_s_tuner, | |
1291 | .vidioc_g_frequency = vidioc_g_frequency, | |
1292 | .vidioc_s_frequency = vidioc_s_frequency, | |
a399810c HV |
1293 | }; |
1294 | ||
1295 | static struct video_device usbvision_radio_template = { | |
a399810c HV |
1296 | .fops = &usbvision_radio_fops, |
1297 | .name = "usbvision-radio", | |
1298 | .release = video_device_release, | |
a399810c | 1299 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
c5f48367 TM |
1300 | |
1301 | .tvnorms = USBVISION_NORMS, | |
1302 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1303 | }; |
1304 | ||
483dfdb6 TM |
1305 | |
1306 | static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, | |
1307 | struct video_device *vdev_template, | |
1308 | char *name) | |
1309 | { | |
1310 | struct usb_device *usb_dev = usbvision->dev; | |
1311 | struct video_device *vdev; | |
1312 | ||
1313 | if (usb_dev == NULL) { | |
be9ed511 MCC |
1314 | dev_err(&usbvision->dev->dev, |
1315 | "%s: usbvision->dev is not set\n", __func__); | |
483dfdb6 TM |
1316 | return NULL; |
1317 | } | |
1318 | ||
1319 | vdev = video_device_alloc(); | |
1320 | if (NULL == vdev) { | |
1321 | return NULL; | |
1322 | } | |
1323 | *vdev = *vdev_template; | |
c627b9d1 | 1324 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1325 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1326 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1327 | video_set_drvdata(vdev, usbvision); | |
1328 | return vdev; | |
1329 | } | |
1330 | ||
1331 | // unregister video4linux devices | |
1332 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) | |
1333 | { | |
483dfdb6 TM |
1334 | // Radio Device: |
1335 | if (usbvision->rdev) { | |
38c7c036 LP |
1336 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1337 | video_device_node_name(usbvision->rdev)); | |
f0813b4c | 1338 | if (video_is_registered(usbvision->rdev)) { |
483dfdb6 | 1339 | video_unregister_device(usbvision->rdev); |
c5f48367 | 1340 | } else { |
483dfdb6 TM |
1341 | video_device_release(usbvision->rdev); |
1342 | } | |
1343 | usbvision->rdev = NULL; | |
1344 | } | |
1345 | ||
1346 | // Video Device: | |
1347 | if (usbvision->vdev) { | |
38c7c036 LP |
1348 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1349 | video_device_node_name(usbvision->vdev)); | |
f0813b4c | 1350 | if (video_is_registered(usbvision->vdev)) { |
483dfdb6 | 1351 | video_unregister_device(usbvision->vdev); |
c5f48367 | 1352 | } else { |
483dfdb6 TM |
1353 | video_device_release(usbvision->vdev); |
1354 | } | |
1355 | usbvision->vdev = NULL; | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | // register video4linux devices | |
1360 | static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) | |
1361 | { | |
1362 | // Video Device: | |
c5f48367 TM |
1363 | usbvision->vdev = usbvision_vdev_init(usbvision, |
1364 | &usbvision_video_template, | |
1365 | "USBVision Video"); | |
483dfdb6 TM |
1366 | if (usbvision->vdev == NULL) { |
1367 | goto err_exit; | |
1368 | } | |
c5f48367 TM |
1369 | if (video_register_device(usbvision->vdev, |
1370 | VFL_TYPE_GRABBER, | |
1371 | video_nr)<0) { | |
483dfdb6 TM |
1372 | goto err_exit; |
1373 | } | |
38c7c036 LP |
1374 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
1375 | usbvision->nr, video_device_node_name(usbvision->vdev)); | |
483dfdb6 TM |
1376 | |
1377 | // Radio Device: | |
5490a7cb | 1378 | if (usbvision_device_data[usbvision->dev_model].radio) { |
483dfdb6 | 1379 | // usbvision has radio |
c5f48367 TM |
1380 | usbvision->rdev = usbvision_vdev_init(usbvision, |
1381 | &usbvision_radio_template, | |
1382 | "USBVision Radio"); | |
483dfdb6 TM |
1383 | if (usbvision->rdev == NULL) { |
1384 | goto err_exit; | |
1385 | } | |
c5f48367 TM |
1386 | if (video_register_device(usbvision->rdev, |
1387 | VFL_TYPE_RADIO, | |
1388 | radio_nr)<0) { | |
483dfdb6 TM |
1389 | goto err_exit; |
1390 | } | |
38c7c036 LP |
1391 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
1392 | usbvision->nr, video_device_node_name(usbvision->rdev)); | |
483dfdb6 | 1393 | } |
483dfdb6 TM |
1394 | // all done |
1395 | return 0; | |
1396 | ||
1397 | err_exit: | |
be9ed511 MCC |
1398 | dev_err(&usbvision->dev->dev, |
1399 | "USBVision[%d]: video_register_device() failed\n", | |
1400 | usbvision->nr); | |
483dfdb6 TM |
1401 | usbvision_unregister_video(usbvision); |
1402 | return -1; | |
1403 | } | |
1404 | ||
1405 | /* | |
1406 | * usbvision_alloc() | |
1407 | * | |
c5f48367 TM |
1408 | * This code allocates the struct usb_usbvision. |
1409 | * It is filled with default values. | |
483dfdb6 TM |
1410 | * |
1411 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1412 | * | |
1413 | */ | |
a878440d JG |
1414 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1415 | struct usb_interface *intf) | |
483dfdb6 TM |
1416 | { |
1417 | struct usb_usbvision *usbvision; | |
1418 | ||
1df79537 HV |
1419 | usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); |
1420 | if (usbvision == NULL) | |
1421 | return NULL; | |
483dfdb6 TM |
1422 | |
1423 | usbvision->dev = dev; | |
a878440d | 1424 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1425 | goto err_free; |
483dfdb6 | 1426 | |
c627b9d1 | 1427 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 TM |
1428 | |
1429 | // prepare control urb for control messages during interrupts | |
5490a7cb HV |
1430 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
1431 | if (usbvision->ctrl_urb == NULL) | |
1df79537 | 1432 | goto err_unreg; |
5490a7cb | 1433 | init_waitqueue_head(&usbvision->ctrl_urb_wq); |
483dfdb6 | 1434 | |
5490a7cb | 1435 | usbvision_init_power_off_timer(usbvision); |
483dfdb6 TM |
1436 | |
1437 | return usbvision; | |
1438 | ||
1df79537 HV |
1439 | err_unreg: |
1440 | v4l2_device_unregister(&usbvision->v4l2_dev); | |
1441 | err_free: | |
1442 | kfree(usbvision); | |
483dfdb6 TM |
1443 | return NULL; |
1444 | } | |
1445 | ||
1446 | /* | |
1447 | * usbvision_release() | |
1448 | * | |
1449 | * This code does final release of struct usb_usbvision. This happens | |
1450 | * after the device is disconnected -and- all clients closed their files. | |
1451 | * | |
1452 | */ | |
1453 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1454 | { | |
1455 | PDEBUG(DBG_PROBE, ""); | |
1456 | ||
5490a7cb | 1457 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
1458 | |
1459 | usbvision->initialized = 0; | |
1460 | ||
483dfdb6 TM |
1461 | usbvision_remove_sysfs(usbvision->vdev); |
1462 | usbvision_unregister_video(usbvision); | |
1463 | ||
5490a7cb HV |
1464 | if (usbvision->ctrl_urb) { |
1465 | usb_free_urb(usbvision->ctrl_urb); | |
483dfdb6 TM |
1466 | } |
1467 | ||
1df79537 | 1468 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1469 | kfree(usbvision); |
1470 | ||
1471 | PDEBUG(DBG_PROBE, "success"); | |
1472 | } | |
1473 | ||
1474 | ||
c5f48367 | 1475 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1476 | |
1477 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1478 | { | |
c5f48367 | 1479 | int model; |
483dfdb6 TM |
1480 | |
1481 | if (usbvision == NULL) | |
1482 | return; | |
1483 | ||
5490a7cb | 1484 | model = usbvision->dev_model; |
483dfdb6 TM |
1485 | usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; |
1486 | ||
5490a7cb HV |
1487 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1488 | usbvision->vin_reg2_preset = | |
1489 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1490 | } else { |
5490a7cb | 1491 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1492 | } |
1493 | ||
5490a7cb | 1494 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
483dfdb6 | 1495 | |
5490a7cb | 1496 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 TM |
1497 | usbvision->ctl_input = 0; |
1498 | ||
1499 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 TM |
1500 | /* first switch off audio */ |
1501 | usbvision_audio_off(usbvision); | |
5490a7cb | 1502 | if (!power_on_at_open) { |
c5f48367 TM |
1503 | /* and then power up the noisy tuner */ |
1504 | usbvision_power_on(usbvision); | |
1ff16c20 | 1505 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1506 | } |
1507 | } | |
1508 | ||
1509 | /* | |
1510 | * usbvision_probe() | |
1511 | * | |
1512 | * This procedure queries device descriptor and accepts the interface | |
1513 | * if it looks like USBVISION video device | |
1514 | * | |
1515 | */ | |
659ae56d MCC |
1516 | static int __devinit usbvision_probe(struct usb_interface *intf, |
1517 | const struct usb_device_id *devid) | |
483dfdb6 | 1518 | { |
2a9f8b5d TM |
1519 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1520 | struct usb_interface *uif; | |
483dfdb6 TM |
1521 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1522 | const struct usb_host_interface *interface; | |
1523 | struct usb_usbvision *usbvision = NULL; | |
1524 | const struct usb_endpoint_descriptor *endpoint; | |
2a9f8b5d | 1525 | int model,i; |
483dfdb6 TM |
1526 | |
1527 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
659ae56d MCC |
1528 | dev->descriptor.idVendor, |
1529 | dev->descriptor.idProduct, ifnum); | |
2a9f8b5d | 1530 | |
659ae56d | 1531 | model = devid->driver_info; |
f8a389db | 1532 | if ( (model<0) || (model>=usbvision_device_data_size) ) { |
672d013b | 1533 | PDEBUG(DBG_PROBE, "model out of bounds %d",model); |
f8a389db MCC |
1534 | return -ENODEV; |
1535 | } | |
d2db42dd | 1536 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1537 | usbvision_device_data[model].model_string); |
483dfdb6 | 1538 | |
5490a7cb HV |
1539 | if (usbvision_device_data[model].interface >= 0) { |
1540 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; | |
c5f48367 | 1541 | } else { |
483dfdb6 TM |
1542 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
1543 | } | |
1544 | endpoint = &interface->endpoint[1].desc; | |
2230c3c8 | 1545 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1546 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1547 | __func__, ifnum); |
be9ed511 | 1548 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1549 | __func__, endpoint->bmAttributes); |
483dfdb6 TM |
1550 | return -ENODEV; |
1551 | } | |
13417982 | 1552 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1553 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1554 | __func__, ifnum); |
483dfdb6 TM |
1555 | return -ENODEV; |
1556 | } | |
1557 | ||
a878440d JG |
1558 | usbvision = usbvision_alloc(dev, intf); |
1559 | if (usbvision == NULL) { | |
be9ed511 | 1560 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
483dfdb6 TM |
1561 | return -ENOMEM; |
1562 | } | |
659ae56d | 1563 | |
483dfdb6 | 1564 | if (dev->descriptor.bNumConfigurations > 1) { |
5490a7cb | 1565 | usbvision->bridge_type = BRIDGE_NT1004; |
c5f48367 | 1566 | } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { |
5490a7cb | 1567 | usbvision->bridge_type = BRIDGE_NT1005; |
c5f48367 | 1568 | } else { |
5490a7cb | 1569 | usbvision->bridge_type = BRIDGE_NT1003; |
483dfdb6 | 1570 | } |
5490a7cb | 1571 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1572 | |
2a9f8b5d TM |
1573 | /* compute alternate max packet sizes */ |
1574 | uif = dev->actconfig->interface[0]; | |
1575 | ||
1576 | usbvision->num_alt=uif->num_altsetting; | |
1577 | PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); | |
1578 | usbvision->alt_max_pkt_size = kmalloc(32* | |
1579 | usbvision->num_alt,GFP_KERNEL); | |
1580 | if (usbvision->alt_max_pkt_size == NULL) { | |
be9ed511 | 1581 | dev_err(&intf->dev, "usbvision: out of memory!\n"); |
2a9f8b5d TM |
1582 | return -ENOMEM; |
1583 | } | |
1584 | ||
1585 | for (i = 0; i < usbvision->num_alt ; i++) { | |
1586 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
1587 | wMaxPacketSize); | |
1588 | usbvision->alt_max_pkt_size[i] = | |
1589 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
1590 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, | |
1591 | usbvision->alt_max_pkt_size[i]); | |
1592 | } | |
1593 | ||
1594 | ||
483dfdb6 TM |
1595 | usbvision->nr = usbvision_nr++; |
1596 | ||
5490a7cb | 1597 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
483dfdb6 | 1598 | if (usbvision->have_tuner) { |
5490a7cb | 1599 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 TM |
1600 | } |
1601 | ||
5490a7cb | 1602 | usbvision->dev_model = model; |
483dfdb6 TM |
1603 | usbvision->remove_pending = 0; |
1604 | usbvision->iface = ifnum; | |
5490a7cb | 1605 | usbvision->iface_alt = 0; |
483dfdb6 | 1606 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1607 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1608 | usbvision->usb_bandwidth = 0; |
1609 | usbvision->user = 0; | |
5490a7cb | 1610 | usbvision->streaming = stream_off; |
483dfdb6 | 1611 | usbvision_configure_video(usbvision); |
8403472f | 1612 | usbvision_register_video(usbvision); |
483dfdb6 | 1613 | |
483dfdb6 TM |
1614 | usbvision_create_sysfs(usbvision->vdev); |
1615 | ||
1616 | PDEBUG(DBG_PROBE, "success"); | |
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | ||
1621 | /* | |
1622 | * usbvision_disconnect() | |
1623 | * | |
1624 | * This procedure stops all driver activity, deallocates interface-private | |
1625 | * structure (pointed by 'ptr') and after that driver should be removable | |
1626 | * with no ill consequences. | |
1627 | * | |
1628 | */ | |
1629 | static void __devexit usbvision_disconnect(struct usb_interface *intf) | |
1630 | { | |
aeb506aa | 1631 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1632 | |
1633 | PDEBUG(DBG_PROBE, ""); | |
1634 | ||
1635 | if (usbvision == NULL) { | |
4202066c | 1636 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1637 | return; |
1638 | } | |
483dfdb6 | 1639 | |
c627b9d1 | 1640 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1641 | |
1642 | // At this time we ask to cancel outstanding URBs | |
1643 | usbvision_stop_isoc(usbvision); | |
1644 | ||
f1ba28c3 HV |
1645 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
1646 | ||
483dfdb6 | 1647 | if (usbvision->power) { |
1ff16c20 | 1648 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1649 | usbvision_power_off(usbvision); |
1650 | } | |
1651 | usbvision->remove_pending = 1; // Now all ISO data will be ignored | |
1652 | ||
1653 | usb_put_dev(usbvision->dev); | |
1654 | usbvision->dev = NULL; // USB device is no more | |
1655 | ||
c627b9d1 | 1656 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1657 | |
1658 | if (usbvision->user) { | |
c5f48367 | 1659 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1660 | __func__); |
483dfdb6 TM |
1661 | wake_up_interruptible(&usbvision->wait_frame); |
1662 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1663 | } else { |
483dfdb6 TM |
1664 | usbvision_release(usbvision); |
1665 | } | |
1666 | ||
1667 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1668 | } |
1669 | ||
1670 | static struct usb_driver usbvision_driver = { | |
1671 | .name = "usbvision", | |
1672 | .id_table = usbvision_table, | |
1673 | .probe = usbvision_probe, | |
e36bc31f | 1674 | .disconnect = __devexit_p(usbvision_disconnect), |
483dfdb6 TM |
1675 | }; |
1676 | ||
483dfdb6 TM |
1677 | /* |
1678 | * usbvision_init() | |
1679 | * | |
1680 | * This code is run to initialize the driver. | |
1681 | * | |
1682 | */ | |
1683 | static int __init usbvision_init(void) | |
1684 | { | |
5490a7cb | 1685 | int err_code; |
483dfdb6 TM |
1686 | |
1687 | PDEBUG(DBG_PROBE, ""); | |
1688 | ||
483dfdb6 TM |
1689 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1690 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1691 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1692 | |
1693 | /* disable planar mode support unless compression enabled */ | |
5490a7cb | 1694 | if (isoc_mode != ISOC_MODE_COMPRESS ) { |
483dfdb6 TM |
1695 | // FIXME : not the right way to set supported flag |
1696 | usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 | |
1697 | usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P | |
1698 | } | |
1699 | ||
5490a7cb | 1700 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1701 | |
5490a7cb | 1702 | if (err_code == 0) { |
de6a1b8e | 1703 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1704 | PDEBUG(DBG_PROBE, "success"); |
1705 | } | |
5490a7cb | 1706 | return err_code; |
483dfdb6 TM |
1707 | } |
1708 | ||
1709 | static void __exit usbvision_exit(void) | |
1710 | { | |
1711 | PDEBUG(DBG_PROBE, ""); | |
1712 | ||
1713 | usb_deregister(&usbvision_driver); | |
1714 | PDEBUG(DBG_PROBE, "success"); | |
1715 | } | |
1716 | ||
1717 | module_init(usbvision_init); | |
1718 | module_exit(usbvision_exit); | |
1719 | ||
1720 | /* | |
1721 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
1722 | * --------------------------------------------------------------------------- | |
1723 | * Local variables: | |
1724 | * c-basic-offset: 8 | |
1725 | * End: | |
1726 | */ |