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 | ||
48 | #include <linux/kernel.h> | |
483dfdb6 TM |
49 | #include <linux/list.h> |
50 | #include <linux/timer.h> | |
51 | #include <linux/slab.h> | |
52 | #include <linux/mm.h> | |
483dfdb6 | 53 | #include <linux/highmem.h> |
483dfdb6 TM |
54 | #include <linux/vmalloc.h> |
55 | #include <linux/module.h> | |
56 | #include <linux/init.h> | |
57 | #include <linux/spinlock.h> | |
6d6a48e5 | 58 | #include <linux/io.h> |
483dfdb6 | 59 | #include <linux/videodev2.h> |
483dfdb6 TM |
60 | #include <linux/i2c.h> |
61 | ||
62 | #include <media/saa7115.h> | |
63 | #include <media/v4l2-common.h> | |
35ea11ff | 64 | #include <media/v4l2-ioctl.h> |
483dfdb6 | 65 | #include <media/tuner.h> |
483dfdb6 | 66 | |
a1ed551c | 67 | #include <linux/workqueue.h> |
483dfdb6 | 68 | |
483dfdb6 | 69 | #include "usbvision.h" |
659ae56d | 70 | #include "usbvision-cards.h" |
483dfdb6 | 71 | |
85ee7a1d JP |
72 | #define DRIVER_AUTHOR \ |
73 | "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" | |
1990d50b | 79 | #define USBVISION_VERSION_STRING "0.9.11" |
483dfdb6 TM |
80 | |
81 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
82 | ||
83 | ||
483dfdb6 | 84 | #ifdef USBVISION_DEBUG |
df18c319 | 85 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 86 | if (video_debug & (level)) \ |
a482f327 GKH |
87 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
88 | __func__, __LINE__ , ## args); \ | |
df18c319 | 89 | } |
483dfdb6 | 90 | #else |
6d6a48e5 | 91 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
92 | #endif |
93 | ||
6d6a48e5 HV |
94 | #define DBG_IO (1 << 1) |
95 | #define DBG_PROBE (1 << 2) | |
96 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 97 | |
52cb0bf2 | 98 | /* String operations */ |
6d6a48e5 HV |
99 | #define rmspace(str) while (*str == ' ') str++; |
100 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
101 | |
102 | ||
c5f48367 | 103 | /* sequential number of usbvision device */ |
ff699e6b | 104 | static int usbvision_nr; |
483dfdb6 TM |
105 | |
106 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
107 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
108 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
109 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
110 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
111 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
112 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
52cb0bf2 | 113 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
114 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } |
115 | }; | |
116 | ||
c5f48367 | 117 | /* Function prototypes */ |
483dfdb6 TM |
118 | static void usbvision_release(struct usb_usbvision *usbvision); |
119 | ||
c84e6036 | 120 | /* Default initialization of device driver parameters */ |
c5f48367 | 121 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 122 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 123 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 124 | static int video_debug; |
c5f48367 | 125 | /* Set the default device to power on at startup */ |
5490a7cb | 126 | static int power_on_at_open = 1; |
c5f48367 TM |
127 | /* Sequential Number of Video Device */ |
128 | static int video_nr = -1; | |
129 | /* Sequential Number of Radio Device */ | |
130 | static int radio_nr = -1; | |
c5f48367 TM |
131 | |
132 | /* Grab parameters for the device driver */ | |
133 | ||
134 | /* Showing parameters under SYSFS */ | |
5490a7cb | 135 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 136 | module_param(video_debug, int, 0444); |
5490a7cb | 137 | module_param(power_on_at_open, int, 0444); |
483dfdb6 TM |
138 | module_param(video_nr, int, 0444); |
139 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 140 | |
5490a7cb | 141 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 142 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
5490a7cb | 143 | MODULE_PARM_DESC(power_on_at_open, " Set the default device to power on when device is opened. Default: 1 (On)"); |
483dfdb6 TM |
144 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
145 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
146 | |
147 | ||
52cb0bf2 | 148 | /* Misc stuff */ |
483dfdb6 TM |
149 | MODULE_AUTHOR(DRIVER_AUTHOR); |
150 | MODULE_DESCRIPTION(DRIVER_DESC); | |
151 | MODULE_LICENSE(DRIVER_LICENSE); | |
a1ed551c MCC |
152 | MODULE_VERSION(USBVISION_VERSION_STRING); |
153 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
154 | |
155 | ||
c5f48367 TM |
156 | /*****************************************************************************/ |
157 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
158 | /* Device information is located at /sys/class/video4linux/video0 */ | |
159 | /* Device parameters information is located at /sys/module/usbvision */ | |
160 | /* Device USB Information is located at */ | |
161 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
162 | /*****************************************************************************/ | |
483dfdb6 | 163 | |
483dfdb6 TM |
164 | #define YES_NO(x) ((x) ? "Yes" : "No") |
165 | ||
54bd5b66 | 166 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 167 | { |
c5f48367 | 168 | struct video_device *vdev = |
22a04f10 | 169 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
170 | return video_get_drvdata(vdev); |
171 | } | |
172 | ||
54bd5b66 KS |
173 | static ssize_t show_version(struct device *cd, |
174 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
175 | { |
176 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
177 | } | |
54bd5b66 | 178 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 179 | |
54bd5b66 KS |
180 | static ssize_t show_model(struct device *cd, |
181 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 182 | { |
c5f48367 | 183 | struct video_device *vdev = |
22a04f10 | 184 | container_of(cd, struct video_device, dev); |
483dfdb6 | 185 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 186 | return sprintf(buf, "%s\n", |
5490a7cb | 187 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 188 | } |
54bd5b66 | 189 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 190 | |
54bd5b66 KS |
191 | static ssize_t show_hue(struct device *cd, |
192 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 193 | { |
c5f48367 | 194 | struct video_device *vdev = |
22a04f10 | 195 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
196 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
197 | struct v4l2_control ctrl; | |
198 | ctrl.id = V4L2_CID_HUE; | |
199 | ctrl.value = 0; | |
6d6a48e5 | 200 | if (usbvision->user) |
1df79537 | 201 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 202 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 203 | } |
54bd5b66 | 204 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 205 | |
54bd5b66 KS |
206 | static ssize_t show_contrast(struct device *cd, |
207 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 208 | { |
c5f48367 | 209 | struct video_device *vdev = |
22a04f10 | 210 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
211 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
212 | struct v4l2_control ctrl; | |
213 | ctrl.id = V4L2_CID_CONTRAST; | |
214 | ctrl.value = 0; | |
6d6a48e5 | 215 | if (usbvision->user) |
1df79537 | 216 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 217 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 218 | } |
54bd5b66 | 219 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 220 | |
54bd5b66 KS |
221 | static ssize_t show_brightness(struct device *cd, |
222 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 223 | { |
c5f48367 | 224 | struct video_device *vdev = |
22a04f10 | 225 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
226 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
227 | struct v4l2_control ctrl; | |
228 | ctrl.id = V4L2_CID_BRIGHTNESS; | |
229 | ctrl.value = 0; | |
6d6a48e5 | 230 | if (usbvision->user) |
1df79537 | 231 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 232 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 233 | } |
54bd5b66 | 234 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 235 | |
54bd5b66 KS |
236 | static ssize_t show_saturation(struct device *cd, |
237 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 238 | { |
c5f48367 | 239 | struct video_device *vdev = |
22a04f10 | 240 | container_of(cd, struct video_device, dev); |
483dfdb6 TM |
241 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
242 | struct v4l2_control ctrl; | |
243 | ctrl.id = V4L2_CID_SATURATION; | |
244 | ctrl.value = 0; | |
6d6a48e5 | 245 | if (usbvision->user) |
1df79537 | 246 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 247 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 248 | } |
54bd5b66 | 249 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 250 | |
54bd5b66 KS |
251 | static ssize_t show_streaming(struct device *cd, |
252 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 253 | { |
c5f48367 | 254 | struct video_device *vdev = |
22a04f10 | 255 | container_of(cd, struct video_device, dev); |
483dfdb6 | 256 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 257 | return sprintf(buf, "%s\n", |
6d6a48e5 | 258 | YES_NO(usbvision->streaming == stream_on ? 1 : 0)); |
483dfdb6 | 259 | } |
54bd5b66 | 260 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 261 | |
54bd5b66 KS |
262 | static ssize_t show_compression(struct device *cd, |
263 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 264 | { |
c5f48367 | 265 | struct video_device *vdev = |
22a04f10 | 266 | container_of(cd, struct video_device, dev); |
483dfdb6 | 267 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 268 | return sprintf(buf, "%s\n", |
6d6a48e5 | 269 | YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); |
483dfdb6 | 270 | } |
54bd5b66 | 271 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 272 | |
54bd5b66 KS |
273 | static ssize_t show_device_bridge(struct device *cd, |
274 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 275 | { |
c5f48367 | 276 | struct video_device *vdev = |
22a04f10 | 277 | container_of(cd, struct video_device, dev); |
483dfdb6 | 278 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 279 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 280 | } |
54bd5b66 | 281 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
282 | |
283 | static void usbvision_create_sysfs(struct video_device *vdev) | |
284 | { | |
285 | int res; | |
6d6a48e5 | 286 | |
ed00b41d DG |
287 | if (!vdev) |
288 | return; | |
289 | do { | |
22a04f10 | 290 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 291 | if (res < 0) |
ed00b41d | 292 | break; |
22a04f10 | 293 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 294 | if (res < 0) |
ed00b41d | 295 | break; |
22a04f10 | 296 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 297 | if (res < 0) |
ed00b41d | 298 | break; |
22a04f10 | 299 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 300 | if (res < 0) |
ed00b41d | 301 | break; |
22a04f10 | 302 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 303 | if (res < 0) |
ed00b41d | 304 | break; |
22a04f10 | 305 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 306 | if (res < 0) |
ed00b41d | 307 | break; |
22a04f10 | 308 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 309 | if (res < 0) |
ed00b41d | 310 | break; |
22a04f10 | 311 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 312 | if (res < 0) |
ed00b41d | 313 | break; |
22a04f10 | 314 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 315 | if (res >= 0) |
ed00b41d DG |
316 | return; |
317 | } while (0); | |
318 | ||
be9ed511 | 319 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
320 | } |
321 | ||
322 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
323 | { | |
324 | if (vdev) { | |
22a04f10 HV |
325 | device_remove_file(&vdev->dev, &dev_attr_version); |
326 | device_remove_file(&vdev->dev, &dev_attr_model); | |
327 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
328 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
329 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
330 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
331 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
332 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
333 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
334 | } |
335 | } | |
336 | ||
483dfdb6 TM |
337 | /* |
338 | * usbvision_open() | |
339 | * | |
340 | * This is part of Video 4 Linux API. The driver can be opened by one | |
341 | * client only (checks internal counter 'usbvision->user'). The procedure | |
342 | * then allocates buffers needed for video processing. | |
343 | * | |
344 | */ | |
bec43661 | 345 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 346 | { |
c170ecf4 | 347 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 348 | int err_code = 0; |
483dfdb6 TM |
349 | |
350 | PDEBUG(DBG_IO, "open"); | |
351 | ||
4d345708 HV |
352 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
353 | return -ERESTARTSYS; | |
5490a7cb | 354 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
355 | |
356 | if (usbvision->user) | |
5490a7cb | 357 | err_code = -EBUSY; |
483dfdb6 | 358 | else { |
6f78e186 | 359 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 360 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 361 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
362 | /* Allocate intermediate decompression buffers |
363 | only if needed */ | |
5490a7cb | 364 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 365 | } |
5490a7cb | 366 | if (err_code) { |
483dfdb6 | 367 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 368 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
369 | usbvision_decompress_free(usbvision); |
370 | } | |
371 | } | |
372 | ||
373 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 374 | if (!err_code) { |
483dfdb6 TM |
375 | if (usbvision->power == 0) { |
376 | usbvision_power_on(usbvision); | |
1ff16c20 | 377 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
378 | } |
379 | ||
380 | /* Send init sequence only once, it's large! */ | |
381 | if (!usbvision->initialized) { | |
382 | int setup_ok = 0; | |
6d6a48e5 | 383 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
384 | if (setup_ok) |
385 | usbvision->initialized = 1; | |
386 | else | |
5490a7cb | 387 | err_code = -EBUSY; |
483dfdb6 TM |
388 | } |
389 | ||
5490a7cb | 390 | if (!err_code) { |
483dfdb6 | 391 | usbvision_begin_streaming(usbvision); |
5490a7cb | 392 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 393 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 394 | usbvision_muxsel(usbvision, 0); |
483dfdb6 | 395 | usbvision->user++; |
c5f48367 | 396 | } else { |
5490a7cb | 397 | if (power_on_at_open) { |
1ff16c20 | 398 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
399 | usbvision_power_off(usbvision); |
400 | usbvision->initialized = 0; | |
401 | } | |
402 | } | |
483dfdb6 TM |
403 | } |
404 | ||
483dfdb6 TM |
405 | /* prepare queues */ |
406 | usbvision_empty_framequeues(usbvision); | |
4d345708 | 407 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
408 | |
409 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 410 | return err_code; |
483dfdb6 TM |
411 | } |
412 | ||
413 | /* | |
414 | * usbvision_v4l2_close() | |
415 | * | |
416 | * This is part of Video 4 Linux API. The procedure | |
417 | * stops streaming and deallocates all buffers that were earlier | |
418 | * allocated in usbvision_v4l2_open(). | |
419 | * | |
420 | */ | |
bec43661 | 421 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 422 | { |
c170ecf4 | 423 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
424 | |
425 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 | 426 | |
4d345708 | 427 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
428 | usbvision_audio_off(usbvision); |
429 | usbvision_restart_isoc(usbvision); | |
430 | usbvision_stop_isoc(usbvision); | |
431 | ||
432 | usbvision_decompress_free(usbvision); | |
38284ba3 | 433 | usbvision_frames_free(usbvision); |
6f78e186 | 434 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 435 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
436 | |
437 | usbvision->user--; | |
438 | ||
5490a7cb | 439 | if (power_on_at_open) { |
c5f48367 TM |
440 | /* power off in a little while |
441 | to avoid off/on every close/open short sequences */ | |
5490a7cb | 442 | usbvision_set_power_off_timer(usbvision); |
483dfdb6 TM |
443 | usbvision->initialized = 0; |
444 | } | |
445 | ||
483dfdb6 | 446 | if (usbvision->remove_pending) { |
d2db42dd | 447 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
448 | usbvision_release(usbvision); |
449 | } | |
4d345708 | 450 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
451 | |
452 | PDEBUG(DBG_IO, "success"); | |
483dfdb6 TM |
453 | return 0; |
454 | } | |
455 | ||
456 | ||
457 | /* | |
458 | * usbvision_ioctl() | |
459 | * | |
460 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
461 | * | |
462 | */ | |
c5f48367 | 463 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 464 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 465 | struct v4l2_dbg_register *reg) |
483dfdb6 | 466 | { |
c170ecf4 | 467 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 468 | int err_code; |
483dfdb6 | 469 | |
aecde8b5 | 470 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
471 | return -EINVAL; |
472 | /* NT100x has a 8-bit register space */ | |
5490a7cb HV |
473 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
474 | if (err_code < 0) { | |
be9ed511 MCC |
475 | dev_err(&usbvision->vdev->dev, |
476 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", | |
5490a7cb HV |
477 | __func__, err_code); |
478 | return err_code; | |
c5f48367 | 479 | } |
5490a7cb | 480 | reg->val = err_code; |
aecde8b5 | 481 | reg->size = 1; |
c5f48367 TM |
482 | return 0; |
483 | } | |
483dfdb6 | 484 | |
6d6a48e5 | 485 | static int vidioc_s_register(struct file *file, void *priv, |
aecde8b5 | 486 | struct v4l2_dbg_register *reg) |
c5f48367 | 487 | { |
c170ecf4 | 488 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 489 | int err_code; |
62d50add | 490 | |
aecde8b5 | 491 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
492 | return -EINVAL; |
493 | /* NT100x has a 8-bit register space */ | |
6d6a48e5 | 494 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 495 | if (err_code < 0) { |
be9ed511 MCC |
496 | dev_err(&usbvision->vdev->dev, |
497 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", | |
5490a7cb HV |
498 | __func__, err_code); |
499 | return err_code; | |
c5f48367 TM |
500 | } |
501 | return 0; | |
502 | } | |
483dfdb6 | 503 | #endif |
c5f48367 | 504 | |
6d6a48e5 | 505 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
506 | struct v4l2_capability *vc) |
507 | { | |
c170ecf4 | 508 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
509 | |
510 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
511 | strlcpy(vc->card, | |
5490a7cb | 512 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 513 | sizeof(vc->card)); |
6f2a2781 | 514 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
c5f48367 TM |
515 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
516 | V4L2_CAP_AUDIO | | |
517 | V4L2_CAP_READWRITE | | |
518 | V4L2_CAP_STREAMING | | |
519 | (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); | |
520 | return 0; | |
521 | } | |
522 | ||
6d6a48e5 | 523 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
524 | struct v4l2_input *vi) |
525 | { | |
c170ecf4 | 526 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
527 | int chan; |
528 | ||
223ffe5f | 529 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 530 | return -EINVAL; |
6d6a48e5 | 531 | if (usbvision->have_tuner) |
c5f48367 | 532 | chan = vi->index; |
6d6a48e5 | 533 | else |
52cb0bf2 | 534 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 535 | |
c5f48367 TM |
536 | /* Determine the requested input characteristics |
537 | specific for each usbvision card model */ | |
6d6a48e5 | 538 | switch (chan) { |
c5f48367 | 539 | case 0: |
5490a7cb | 540 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
541 | strcpy(vi->name, "White Video Input"); |
542 | } else { | |
543 | strcpy(vi->name, "Television"); | |
544 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
545 | vi->audioset = 1; | |
546 | vi->tuner = chan; | |
547 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 548 | } |
c5f48367 TM |
549 | break; |
550 | case 1: | |
551 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 552 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 553 | strcpy(vi->name, "Green Video Input"); |
6d6a48e5 | 554 | else |
c5f48367 | 555 | strcpy(vi->name, "Composite Video Input"); |
c5f48367 TM |
556 | vi->std = V4L2_STD_PAL; |
557 | break; | |
558 | case 2: | |
559 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 560 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 561 | strcpy(vi->name, "Yellow Video Input"); |
6d6a48e5 | 562 | else |
c5f48367 | 563 | strcpy(vi->name, "S-Video Input"); |
c5f48367 TM |
564 | vi->std = V4L2_STD_PAL; |
565 | break; | |
566 | case 3: | |
567 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
568 | strcpy(vi->name, "Red Video Input"); | |
569 | vi->std = V4L2_STD_PAL; | |
570 | break; | |
571 | } | |
572 | return 0; | |
573 | } | |
483dfdb6 | 574 | |
6d6a48e5 | 575 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 576 | { |
c170ecf4 | 577 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 578 | |
c5f48367 TM |
579 | *input = usbvision->ctl_input; |
580 | return 0; | |
581 | } | |
483dfdb6 | 582 | |
6d6a48e5 | 583 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 584 | { |
c170ecf4 | 585 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 586 | |
f14a2972 | 587 | if (input >= usbvision->video_inputs) |
c5f48367 | 588 | return -EINVAL; |
483dfdb6 | 589 | |
66a17879 | 590 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
591 | usbvision_set_input(usbvision); |
592 | usbvision_set_output(usbvision, | |
593 | usbvision->curwidth, | |
594 | usbvision->curheight); | |
c5f48367 TM |
595 | return 0; |
596 | } | |
483dfdb6 | 597 | |
6d6a48e5 | 598 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) |
c5f48367 | 599 | { |
c170ecf4 HV |
600 | struct usb_usbvision *usbvision = video_drvdata(file); |
601 | ||
6d6a48e5 | 602 | usbvision->tvnorm_id = *id; |
483dfdb6 | 603 | |
5490a7cb | 604 | call_all(usbvision, core, s_std, usbvision->tvnorm_id); |
66a17879 TM |
605 | /* propagate the change to the decoder */ |
606 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 607 | |
c5f48367 TM |
608 | return 0; |
609 | } | |
483dfdb6 | 610 | |
6d6a48e5 | 611 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
612 | struct v4l2_tuner *vt) |
613 | { | |
c170ecf4 | 614 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 615 | |
52cb0bf2 | 616 | if (!usbvision->have_tuner || vt->index) /* Only tuner 0 */ |
c5f48367 | 617 | return -EINVAL; |
6d6a48e5 | 618 | if (usbvision->radio) { |
c5f48367 TM |
619 | strcpy(vt->name, "Radio"); |
620 | vt->type = V4L2_TUNER_RADIO; | |
621 | } else { | |
622 | strcpy(vt->name, "Television"); | |
623 | } | |
624 | /* Let clients fill in the remainder of this struct */ | |
1df79537 | 625 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 626 | |
c5f48367 TM |
627 | return 0; |
628 | } | |
483dfdb6 | 629 | |
6d6a48e5 | 630 | static int vidioc_s_tuner(struct file *file, void *priv, |
c5f48367 TM |
631 | struct v4l2_tuner *vt) |
632 | { | |
c170ecf4 | 633 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 634 | |
52cb0bf2 | 635 | /* Only no or one tuner for now */ |
c5f48367 TM |
636 | if (!usbvision->have_tuner || vt->index) |
637 | return -EINVAL; | |
638 | /* let clients handle this */ | |
1df79537 | 639 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 640 | |
c5f48367 TM |
641 | return 0; |
642 | } | |
483dfdb6 | 643 | |
6d6a48e5 | 644 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
645 | struct v4l2_frequency *freq) |
646 | { | |
c170ecf4 | 647 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 648 | |
52cb0bf2 | 649 | freq->tuner = 0; /* Only one tuner */ |
6d6a48e5 | 650 | if (usbvision->radio) |
c5f48367 | 651 | freq->type = V4L2_TUNER_RADIO; |
6d6a48e5 | 652 | else |
c5f48367 | 653 | freq->type = V4L2_TUNER_ANALOG_TV; |
c5f48367 | 654 | freq->frequency = usbvision->freq; |
483dfdb6 | 655 | |
c5f48367 TM |
656 | return 0; |
657 | } | |
483dfdb6 | 658 | |
6d6a48e5 | 659 | static int vidioc_s_frequency(struct file *file, void *priv, |
c5f48367 TM |
660 | struct v4l2_frequency *freq) |
661 | { | |
c170ecf4 | 662 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 663 | |
52cb0bf2 | 664 | /* Only no or one tuner for now */ |
c5f48367 TM |
665 | if (!usbvision->have_tuner || freq->tuner) |
666 | return -EINVAL; | |
483dfdb6 | 667 | |
c5f48367 | 668 | usbvision->freq = freq->frequency; |
1df79537 | 669 | call_all(usbvision, tuner, s_frequency, freq); |
483dfdb6 | 670 | |
c5f48367 TM |
671 | return 0; |
672 | } | |
483dfdb6 | 673 | |
6d6a48e5 | 674 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) |
c5f48367 | 675 | { |
c170ecf4 | 676 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 677 | |
6d6a48e5 HV |
678 | if (usbvision->radio) |
679 | strcpy(a->name, "Radio"); | |
680 | else | |
c5f48367 | 681 | strcpy(a->name, "TV"); |
483dfdb6 | 682 | |
c5f48367 TM |
683 | return 0; |
684 | } | |
483dfdb6 | 685 | |
6d6a48e5 | 686 | static int vidioc_s_audio(struct file *file, void *fh, |
c5f48367 TM |
687 | struct v4l2_audio *a) |
688 | { | |
6d6a48e5 | 689 | if (a->index) |
c5f48367 | 690 | return -EINVAL; |
c5f48367 TM |
691 | return 0; |
692 | } | |
483dfdb6 | 693 | |
6d6a48e5 | 694 | static int vidioc_queryctrl(struct file *file, void *priv, |
c5f48367 TM |
695 | struct v4l2_queryctrl *ctrl) |
696 | { | |
c170ecf4 | 697 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 698 | |
1df79537 | 699 | call_all(usbvision, core, queryctrl, ctrl); |
483dfdb6 | 700 | |
c5f48367 TM |
701 | if (!ctrl->type) |
702 | return -EINVAL; | |
483dfdb6 | 703 | |
c5f48367 TM |
704 | return 0; |
705 | } | |
483dfdb6 | 706 | |
6d6a48e5 | 707 | static int vidioc_g_ctrl(struct file *file, void *priv, |
c5f48367 TM |
708 | struct v4l2_control *ctrl) |
709 | { | |
c170ecf4 | 710 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 711 | |
6d6a48e5 | 712 | call_all(usbvision, core, g_ctrl, ctrl); |
c5f48367 TM |
713 | return 0; |
714 | } | |
715 | ||
6d6a48e5 | 716 | static int vidioc_s_ctrl(struct file *file, void *priv, |
c5f48367 TM |
717 | struct v4l2_control *ctrl) |
718 | { | |
c170ecf4 | 719 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 720 | |
6d6a48e5 | 721 | call_all(usbvision, core, s_ctrl, ctrl); |
c5f48367 TM |
722 | return 0; |
723 | } | |
724 | ||
6d6a48e5 | 725 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
726 | void *priv, struct v4l2_requestbuffers *vr) |
727 | { | |
c170ecf4 | 728 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
729 | int ret; |
730 | ||
6d6a48e5 | 731 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
732 | |
733 | /* Check input validity: | |
734 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 735 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
736 | return -EINVAL; |
737 | ||
6d6a48e5 HV |
738 | if (usbvision->streaming == stream_on) { |
739 | ret = usbvision_stream_interrupt(usbvision); | |
740 | if (ret) | |
c5f48367 | 741 | return ret; |
483dfdb6 | 742 | } |
c5f48367 TM |
743 | |
744 | usbvision_frames_free(usbvision); | |
745 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 746 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 747 | |
5490a7cb | 748 | usbvision->cur_frame = NULL; |
c5f48367 | 749 | |
483dfdb6 TM |
750 | return 0; |
751 | } | |
752 | ||
6d6a48e5 | 753 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 754 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 755 | { |
c170ecf4 | 756 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
757 | struct usbvision_frame *frame; |
758 | ||
759 | /* FIXME : must control | |
760 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 761 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 762 | return -EINVAL; |
c5f48367 TM |
763 | /* Updating the corresponding frame state */ |
764 | vb->flags = 0; | |
765 | frame = &usbvision->frame[vb->index]; | |
6d6a48e5 | 766 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 767 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 768 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 769 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 770 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
771 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
772 | vb->memory = V4L2_MEMORY_MMAP; | |
773 | ||
6d6a48e5 | 774 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
775 | |
776 | vb->memory = V4L2_MEMORY_MMAP; | |
777 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
778 | vb->length = usbvision->curwidth * |
779 | usbvision->curheight * | |
c5f48367 TM |
780 | usbvision->palette.bytes_per_pixel; |
781 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
782 | vb->sequence = usbvision->frame[vb->index].sequence; | |
783 | return 0; | |
483dfdb6 TM |
784 | } |
785 | ||
6d6a48e5 | 786 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 787 | { |
c170ecf4 | 788 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
789 | struct usbvision_frame *frame; |
790 | unsigned long lock_flags; | |
791 | ||
792 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 793 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 794 | return -EINVAL; |
c5f48367 TM |
795 | |
796 | frame = &usbvision->frame[vb->index]; | |
797 | ||
6d6a48e5 | 798 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 799 | return -EAGAIN; |
c5f48367 TM |
800 | |
801 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
802 | frame->grabstate = frame_state_ready; |
803 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
804 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
805 | ||
806 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
807 | ||
808 | /* set v4l2_format index */ | |
809 | frame->v4l2_format = usbvision->palette; | |
810 | ||
811 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
812 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
813 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
814 | ||
815 | return 0; | |
816 | } | |
817 | ||
6d6a48e5 | 818 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 819 | { |
c170ecf4 | 820 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
821 | int ret; |
822 | struct usbvision_frame *f; | |
823 | unsigned long lock_flags; | |
824 | ||
c5f48367 | 825 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 826 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
827 | return -EINVAL; |
828 | ret = wait_event_interruptible | |
829 | (usbvision->wait_frame, | |
830 | !list_empty(&(usbvision->outqueue))); | |
831 | if (ret) | |
832 | return ret; | |
833 | } | |
834 | ||
835 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
836 | f = list_entry(usbvision->outqueue.next, | |
837 | struct usbvision_frame, frame); | |
838 | list_del(usbvision->outqueue.next); | |
839 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
840 | ||
5490a7cb | 841 | f->grabstate = frame_state_unused; |
c5f48367 TM |
842 | |
843 | vb->memory = V4L2_MEMORY_MMAP; | |
844 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
845 | V4L2_BUF_FLAG_QUEUED | | |
846 | V4L2_BUF_FLAG_DONE; | |
847 | vb->index = f->index; | |
848 | vb->sequence = f->sequence; | |
849 | vb->timestamp = f->timestamp; | |
850 | vb->field = V4L2_FIELD_NONE; | |
851 | vb->bytesused = f->scanlength; | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
856 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
857 | { | |
c170ecf4 | 858 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 859 | |
5490a7cb | 860 | usbvision->streaming = stream_on; |
1df79537 | 861 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
862 | |
863 | return 0; | |
864 | } | |
865 | ||
866 | static int vidioc_streamoff(struct file *file, | |
867 | void *priv, enum v4l2_buf_type type) | |
868 | { | |
c170ecf4 | 869 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
870 | |
871 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
872 | return -EINVAL; | |
873 | ||
6d6a48e5 | 874 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
875 | usbvision_stream_interrupt(usbvision); |
876 | /* Stop all video streamings */ | |
1df79537 | 877 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
878 | } |
879 | usbvision_empty_framequeues(usbvision); | |
880 | ||
881 | return 0; | |
882 | } | |
883 | ||
6d6a48e5 | 884 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
885 | struct v4l2_fmtdesc *vfd) |
886 | { | |
6d6a48e5 | 887 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 888 | return -EINVAL; |
6d6a48e5 | 889 | strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); |
c5f48367 | 890 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
891 | return 0; |
892 | } | |
893 | ||
6d6a48e5 | 894 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
895 | struct v4l2_format *vf) |
896 | { | |
c170ecf4 | 897 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
898 | vf->fmt.pix.width = usbvision->curwidth; |
899 | vf->fmt.pix.height = usbvision->curheight; | |
900 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
901 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
902 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
903 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
904 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
905 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
6d6a48e5 | 910 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
911 | struct v4l2_format *vf) |
912 | { | |
c170ecf4 | 913 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 914 | int format_idx; |
c5f48367 TM |
915 | |
916 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
917 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
918 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
919 | usbvision_v4l2_format[format_idx].format) { |
920 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
921 | break; |
922 | } | |
923 | } | |
924 | /* robustness */ | |
6d6a48e5 | 925 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 926 | return -EINVAL; |
c5f48367 TM |
927 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
928 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
929 | ||
930 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
931 | usbvision->palette.bytes_per_pixel; | |
932 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
78b526a4 | 937 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
938 | struct v4l2_format *vf) |
939 | { | |
c170ecf4 | 940 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
941 | int ret; |
942 | ||
6d6a48e5 HV |
943 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
944 | if (ret) | |
c5f48367 | 945 | return ret; |
c5f48367 TM |
946 | |
947 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
948 | if (usbvision->streaming == stream_on) { |
949 | ret = usbvision_stream_interrupt(usbvision); | |
950 | if (ret) | |
c5f48367 TM |
951 | return ret; |
952 | } | |
953 | usbvision_frames_free(usbvision); | |
954 | usbvision_empty_framequeues(usbvision); | |
955 | ||
5490a7cb | 956 | usbvision->cur_frame = NULL; |
c5f48367 TM |
957 | |
958 | /* by now we are committed to the new data... */ | |
c5f48367 | 959 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
960 | |
961 | return 0; | |
962 | } | |
483dfdb6 | 963 | |
4d345708 | 964 | static ssize_t usbvision_read(struct file *file, char __user *buf, |
483dfdb6 TM |
965 | size_t count, loff_t *ppos) |
966 | { | |
c170ecf4 | 967 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
968 | int noblock = file->f_flags & O_NONBLOCK; |
969 | unsigned long lock_flags; | |
6d6a48e5 | 970 | int ret, i; |
483dfdb6 TM |
971 | struct usbvision_frame *frame; |
972 | ||
d2db42dd | 973 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 974 | (unsigned long)count, noblock); |
483dfdb6 TM |
975 | |
976 | if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) | |
977 | return -EFAULT; | |
978 | ||
c5f48367 TM |
979 | /* This entry point is compatible with the mmap routines |
980 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
981 | to get frames or call read on the device. */ | |
6d6a48e5 | 982 | if (!usbvision->num_frames) { |
c5f48367 TM |
983 | /* First, allocate some frames to work with |
984 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
985 | usbvision_frames_free(usbvision); |
986 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 987 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
988 | } |
989 | ||
6d6a48e5 | 990 | if (usbvision->streaming != stream_on) { |
6f78e186 | 991 | /* no stream is running, make it running ! */ |
5490a7cb | 992 | usbvision->streaming = stream_on; |
1df79537 | 993 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 994 | } |
483dfdb6 | 995 | |
c5f48367 TM |
996 | /* Then, enqueue as many frames as possible |
997 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 998 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 999 | frame = &usbvision->frame[i]; |
6d6a48e5 | 1000 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 1001 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
1002 | frame->grabstate = frame_state_ready; |
1003 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
1004 | /* Accumulated in usbvision_parse_data() */ |
1005 | frame->scanlength = 0; | |
483dfdb6 TM |
1006 | |
1007 | /* set v4l2_format index */ | |
1008 | frame->v4l2_format = usbvision->palette; | |
1009 | ||
1010 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1011 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
1012 | spin_unlock_irqrestore(&usbvision->queue_lock, |
1013 | lock_flags); | |
483dfdb6 TM |
1014 | } |
1015 | } | |
1016 | ||
1017 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
1018 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 1019 | if (noblock) |
483dfdb6 TM |
1020 | return -EAGAIN; |
1021 | ||
1022 | ret = wait_event_interruptible | |
1023 | (usbvision->wait_frame, | |
1024 | !list_empty(&(usbvision->outqueue))); | |
1025 | if (ret) | |
1026 | return ret; | |
1027 | } | |
1028 | ||
1029 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1030 | frame = list_entry(usbvision->outqueue.next, | |
1031 | struct usbvision_frame, frame); | |
1032 | list_del(usbvision->outqueue.next); | |
1033 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1034 | ||
1035 | /* An error returns an empty frame */ | |
5490a7cb | 1036 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
1037 | frame->bytes_read = 0; |
1038 | return 0; | |
1039 | } | |
1040 | ||
c5f48367 | 1041 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 1042 | __func__, |
c5f48367 | 1043 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
1044 | |
1045 | /* copy bytes to user space; we allow for partials reads */ | |
1046 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
1047 | count = frame->scanlength - frame->bytes_read; | |
1048 | ||
6d6a48e5 | 1049 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 1050 | return -EFAULT; |
483dfdb6 TM |
1051 | |
1052 | frame->bytes_read += count; | |
c5f48367 | 1053 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 1054 | __func__, |
c5f48367 | 1055 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 1056 | |
c5f48367 | 1057 | /* For now, forget the frame if it has not been read in one shot. */ |
6d6a48e5 | 1058 | /* if (frame->bytes_read >= frame->scanlength) {*/ /* All data has been read */ |
483dfdb6 TM |
1059 | frame->bytes_read = 0; |
1060 | ||
1061 | /* Mark it as available to be used again. */ | |
5490a7cb | 1062 | frame->grabstate = frame_state_unused; |
6d6a48e5 | 1063 | /* } */ |
483dfdb6 TM |
1064 | |
1065 | return count; | |
1066 | } | |
1067 | ||
4d345708 HV |
1068 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
1069 | size_t count, loff_t *ppos) | |
1070 | { | |
1071 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1072 | int res; | |
1073 | ||
1074 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1075 | return -ERESTARTSYS; | |
1076 | res = usbvision_read(file, buf, count, ppos); | |
1077 | mutex_unlock(&usbvision->v4l2_lock); | |
1078 | return res; | |
1079 | } | |
1080 | ||
1081 | static int usbvision_mmap(struct file *file, struct vm_area_struct *vma) | |
483dfdb6 TM |
1082 | { |
1083 | unsigned long size = vma->vm_end - vma->vm_start, | |
1084 | start = vma->vm_start; | |
1085 | void *pos; | |
1086 | u32 i; | |
c170ecf4 | 1087 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1088 | |
6f78e186 TM |
1089 | PDEBUG(DBG_MMAP, "mmap"); |
1090 | ||
6d6a48e5 | 1091 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1092 | return -EFAULT; |
483dfdb6 TM |
1093 | |
1094 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1095 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1096 | return -EINVAL; |
1097 | } | |
1098 | ||
6f78e186 | 1099 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1100 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1101 | vma->vm_pgoff) | |
483dfdb6 TM |
1102 | break; |
1103 | } | |
6f78e186 | 1104 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1105 | PDEBUG(DBG_MMAP, |
1106 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1107 | return -EINVAL; |
1108 | } | |
1109 | ||
1110 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
1111 | vma->vm_flags |= VM_IO; | |
1112 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
1113 | ||
1114 | pos = usbvision->frame[i].data; | |
1115 | while (size > 0) { | |
483dfdb6 | 1116 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1117 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1118 | return -EAGAIN; |
1119 | } | |
1120 | start += PAGE_SIZE; | |
1121 | pos += PAGE_SIZE; | |
1122 | size -= PAGE_SIZE; | |
1123 | } | |
1124 | ||
483dfdb6 TM |
1125 | return 0; |
1126 | } | |
1127 | ||
4d345708 HV |
1128 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1129 | { | |
1130 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1131 | int res; | |
1132 | ||
1133 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1134 | return -ERESTARTSYS; | |
1135 | res = usbvision_mmap(file, vma); | |
1136 | mutex_unlock(&usbvision->v4l2_lock); | |
1137 | return res; | |
1138 | } | |
483dfdb6 TM |
1139 | |
1140 | /* | |
1141 | * Here comes the stuff for radio on usbvision based devices | |
1142 | * | |
1143 | */ | |
bec43661 | 1144 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1145 | { |
c170ecf4 | 1146 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1147 | int err_code = 0; |
483dfdb6 | 1148 | |
d2db42dd | 1149 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1150 | |
4d345708 HV |
1151 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
1152 | return -ERESTARTSYS; | |
483dfdb6 | 1153 | if (usbvision->user) { |
be9ed511 MCC |
1154 | dev_err(&usbvision->rdev->dev, |
1155 | "%s: Someone tried to open an already opened USBVision Radio!\n", | |
1156 | __func__); | |
5490a7cb | 1157 | err_code = -EBUSY; |
6d6a48e5 HV |
1158 | } else { |
1159 | if (power_on_at_open) { | |
5490a7cb | 1160 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
1161 | if (usbvision->power == 0) { |
1162 | usbvision_power_on(usbvision); | |
1ff16c20 | 1163 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1164 | } |
1165 | } | |
1166 | ||
2a9f8b5d | 1167 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1168 | err_code = usbvision_set_alternate(usbvision); |
1169 | if (err_code < 0) { | |
1170 | usbvision->last_error = err_code; | |
1171 | err_code = -EBUSY; | |
544e6175 | 1172 | goto out; |
2a9f8b5d TM |
1173 | } |
1174 | ||
52cb0bf2 | 1175 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1176 | usbvision->radio = 1; |
1df79537 | 1177 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1178 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1179 | usbvision->user++; | |
1180 | } | |
1181 | ||
5490a7cb HV |
1182 | if (err_code) { |
1183 | if (power_on_at_open) { | |
1ff16c20 | 1184 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1185 | usbvision_power_off(usbvision); |
1186 | usbvision->initialized = 0; | |
1187 | } | |
1188 | } | |
544e6175 | 1189 | out: |
4d345708 | 1190 | mutex_unlock(&usbvision->v4l2_lock); |
5490a7cb | 1191 | return err_code; |
483dfdb6 TM |
1192 | } |
1193 | ||
1194 | ||
bec43661 | 1195 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1196 | { |
c170ecf4 | 1197 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1198 | int err_code = 0; |
483dfdb6 TM |
1199 | |
1200 | PDEBUG(DBG_IO, ""); | |
1201 | ||
4d345708 | 1202 | mutex_lock(&usbvision->v4l2_lock); |
2a9f8b5d | 1203 | /* Set packet size to 0 */ |
6d6a48e5 | 1204 | usbvision->iface_alt = 0; |
5490a7cb HV |
1205 | err_code = usb_set_interface(usbvision->dev, usbvision->iface, |
1206 | usbvision->iface_alt); | |
2a9f8b5d | 1207 | |
483dfdb6 | 1208 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1209 | usbvision->radio = 0; |
483dfdb6 TM |
1210 | usbvision->user--; |
1211 | ||
5490a7cb HV |
1212 | if (power_on_at_open) { |
1213 | usbvision_set_power_off_timer(usbvision); | |
483dfdb6 TM |
1214 | usbvision->initialized = 0; |
1215 | } | |
1216 | ||
483dfdb6 | 1217 | if (usbvision->remove_pending) { |
d2db42dd | 1218 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
1219 | usbvision_release(usbvision); |
1220 | } | |
1221 | ||
4d345708 | 1222 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 1223 | PDEBUG(DBG_IO, "success"); |
5490a7cb | 1224 | return err_code; |
483dfdb6 TM |
1225 | } |
1226 | ||
52cb0bf2 | 1227 | /* Video registration stuff */ |
483dfdb6 | 1228 | |
52cb0bf2 | 1229 | /* Video template */ |
bec43661 | 1230 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1231 | .owner = THIS_MODULE, |
483dfdb6 TM |
1232 | .open = usbvision_v4l2_open, |
1233 | .release = usbvision_v4l2_close, | |
1234 | .read = usbvision_v4l2_read, | |
1235 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1236 | .unlocked_ioctl = video_ioctl2, |
6d6a48e5 | 1237 | /* .poll = video_poll, */ |
483dfdb6 | 1238 | }; |
a399810c HV |
1239 | |
1240 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1241 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1242 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1243 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1244 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1245 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1246 | .vidioc_reqbufs = vidioc_reqbufs, |
1247 | .vidioc_querybuf = vidioc_querybuf, | |
1248 | .vidioc_qbuf = vidioc_qbuf, | |
1249 | .vidioc_dqbuf = vidioc_dqbuf, | |
1250 | .vidioc_s_std = vidioc_s_std, | |
1251 | .vidioc_enum_input = vidioc_enum_input, | |
1252 | .vidioc_g_input = vidioc_g_input, | |
1253 | .vidioc_s_input = vidioc_s_input, | |
1254 | .vidioc_queryctrl = vidioc_queryctrl, | |
1255 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1256 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1257 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1258 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1259 | .vidioc_streamon = vidioc_streamon, | |
1260 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1261 | .vidioc_g_tuner = vidioc_g_tuner, |
1262 | .vidioc_s_tuner = vidioc_s_tuner, | |
1263 | .vidioc_g_frequency = vidioc_g_frequency, | |
1264 | .vidioc_s_frequency = vidioc_s_frequency, | |
1265 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1266 | .vidioc_g_register = vidioc_g_register, | |
1267 | .vidioc_s_register = vidioc_s_register, | |
1268 | #endif | |
a399810c HV |
1269 | }; |
1270 | ||
1271 | static struct video_device usbvision_video_template = { | |
a399810c | 1272 | .fops = &usbvision_fops, |
6d6a48e5 | 1273 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c HV |
1274 | .name = "usbvision-video", |
1275 | .release = video_device_release, | |
6d6a48e5 HV |
1276 | .tvnorms = USBVISION_NORMS, |
1277 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1278 | }; |
1279 | ||
1280 | ||
52cb0bf2 | 1281 | /* Radio template */ |
bec43661 | 1282 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1283 | .owner = THIS_MODULE, |
483dfdb6 TM |
1284 | .open = usbvision_radio_open, |
1285 | .release = usbvision_radio_close, | |
c627b9d1 | 1286 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1287 | }; |
1288 | ||
a399810c | 1289 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 TM |
1290 | .vidioc_querycap = vidioc_querycap, |
1291 | .vidioc_enum_input = vidioc_enum_input, | |
1292 | .vidioc_g_input = vidioc_g_input, | |
1293 | .vidioc_s_input = vidioc_s_input, | |
1294 | .vidioc_queryctrl = vidioc_queryctrl, | |
1295 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1296 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1297 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1298 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1299 | .vidioc_g_tuner = vidioc_g_tuner, | |
1300 | .vidioc_s_tuner = vidioc_s_tuner, | |
1301 | .vidioc_g_frequency = vidioc_g_frequency, | |
1302 | .vidioc_s_frequency = vidioc_s_frequency, | |
a399810c HV |
1303 | }; |
1304 | ||
1305 | static struct video_device usbvision_radio_template = { | |
a399810c | 1306 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1307 | .name = "usbvision-radio", |
a399810c | 1308 | .release = video_device_release, |
6d6a48e5 | 1309 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
c5f48367 TM |
1310 | |
1311 | .tvnorms = USBVISION_NORMS, | |
1312 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1313 | }; |
1314 | ||
483dfdb6 TM |
1315 | |
1316 | static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, | |
1317 | struct video_device *vdev_template, | |
1318 | char *name) | |
1319 | { | |
1320 | struct usb_device *usb_dev = usbvision->dev; | |
1321 | struct video_device *vdev; | |
1322 | ||
1323 | if (usb_dev == NULL) { | |
be9ed511 MCC |
1324 | dev_err(&usbvision->dev->dev, |
1325 | "%s: usbvision->dev is not set\n", __func__); | |
483dfdb6 TM |
1326 | return NULL; |
1327 | } | |
1328 | ||
1329 | vdev = video_device_alloc(); | |
6d6a48e5 | 1330 | if (NULL == vdev) |
483dfdb6 | 1331 | return NULL; |
483dfdb6 | 1332 | *vdev = *vdev_template; |
c627b9d1 | 1333 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1334 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1335 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1336 | video_set_drvdata(vdev, usbvision); | |
1337 | return vdev; | |
1338 | } | |
1339 | ||
52cb0bf2 | 1340 | /* unregister video4linux devices */ |
483dfdb6 TM |
1341 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1342 | { | |
52cb0bf2 | 1343 | /* Radio Device: */ |
483dfdb6 | 1344 | if (usbvision->rdev) { |
38c7c036 LP |
1345 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1346 | video_device_node_name(usbvision->rdev)); | |
6d6a48e5 | 1347 | if (video_is_registered(usbvision->rdev)) |
483dfdb6 | 1348 | video_unregister_device(usbvision->rdev); |
6d6a48e5 | 1349 | else |
483dfdb6 | 1350 | video_device_release(usbvision->rdev); |
483dfdb6 TM |
1351 | usbvision->rdev = NULL; |
1352 | } | |
1353 | ||
52cb0bf2 | 1354 | /* Video Device: */ |
483dfdb6 | 1355 | if (usbvision->vdev) { |
38c7c036 LP |
1356 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1357 | video_device_node_name(usbvision->vdev)); | |
6d6a48e5 | 1358 | if (video_is_registered(usbvision->vdev)) |
483dfdb6 | 1359 | video_unregister_device(usbvision->vdev); |
6d6a48e5 | 1360 | else |
483dfdb6 | 1361 | video_device_release(usbvision->vdev); |
483dfdb6 TM |
1362 | usbvision->vdev = NULL; |
1363 | } | |
1364 | } | |
1365 | ||
52cb0bf2 | 1366 | /* register video4linux devices */ |
483dfdb6 TM |
1367 | static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) |
1368 | { | |
52cb0bf2 | 1369 | /* Video Device: */ |
c5f48367 TM |
1370 | usbvision->vdev = usbvision_vdev_init(usbvision, |
1371 | &usbvision_video_template, | |
1372 | "USBVision Video"); | |
6d6a48e5 | 1373 | if (usbvision->vdev == NULL) |
483dfdb6 | 1374 | goto err_exit; |
6d6a48e5 | 1375 | if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1376 | goto err_exit; |
38c7c036 LP |
1377 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
1378 | usbvision->nr, video_device_node_name(usbvision->vdev)); | |
483dfdb6 | 1379 | |
52cb0bf2 | 1380 | /* Radio Device: */ |
5490a7cb | 1381 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1382 | /* usbvision has radio */ |
c5f48367 TM |
1383 | usbvision->rdev = usbvision_vdev_init(usbvision, |
1384 | &usbvision_radio_template, | |
1385 | "USBVision Radio"); | |
6d6a48e5 | 1386 | if (usbvision->rdev == NULL) |
483dfdb6 | 1387 | goto err_exit; |
6d6a48e5 | 1388 | if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) |
483dfdb6 | 1389 | goto err_exit; |
38c7c036 LP |
1390 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
1391 | usbvision->nr, video_device_node_name(usbvision->rdev)); | |
483dfdb6 | 1392 | } |
52cb0bf2 | 1393 | /* all done */ |
483dfdb6 TM |
1394 | return 0; |
1395 | ||
1396 | err_exit: | |
be9ed511 MCC |
1397 | dev_err(&usbvision->dev->dev, |
1398 | "USBVision[%d]: video_register_device() failed\n", | |
1399 | usbvision->nr); | |
483dfdb6 TM |
1400 | usbvision_unregister_video(usbvision); |
1401 | return -1; | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * usbvision_alloc() | |
1406 | * | |
c5f48367 TM |
1407 | * This code allocates the struct usb_usbvision. |
1408 | * It is filled with default values. | |
483dfdb6 TM |
1409 | * |
1410 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1411 | * | |
1412 | */ | |
a878440d JG |
1413 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1414 | struct usb_interface *intf) | |
483dfdb6 TM |
1415 | { |
1416 | struct usb_usbvision *usbvision; | |
1417 | ||
1df79537 HV |
1418 | usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); |
1419 | if (usbvision == NULL) | |
1420 | return NULL; | |
483dfdb6 TM |
1421 | |
1422 | usbvision->dev = dev; | |
a878440d | 1423 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1424 | goto err_free; |
483dfdb6 | 1425 | |
c627b9d1 | 1426 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1427 | |
52cb0bf2 | 1428 | /* prepare control urb for control messages during interrupts */ |
5490a7cb HV |
1429 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
1430 | if (usbvision->ctrl_urb == NULL) | |
1df79537 | 1431 | goto err_unreg; |
5490a7cb | 1432 | init_waitqueue_head(&usbvision->ctrl_urb_wq); |
483dfdb6 | 1433 | |
5490a7cb | 1434 | usbvision_init_power_off_timer(usbvision); |
483dfdb6 TM |
1435 | |
1436 | return usbvision; | |
1437 | ||
1df79537 HV |
1438 | err_unreg: |
1439 | v4l2_device_unregister(&usbvision->v4l2_dev); | |
1440 | err_free: | |
1441 | kfree(usbvision); | |
483dfdb6 TM |
1442 | return NULL; |
1443 | } | |
1444 | ||
1445 | /* | |
1446 | * usbvision_release() | |
1447 | * | |
1448 | * This code does final release of struct usb_usbvision. This happens | |
1449 | * after the device is disconnected -and- all clients closed their files. | |
1450 | * | |
1451 | */ | |
1452 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1453 | { | |
1454 | PDEBUG(DBG_PROBE, ""); | |
1455 | ||
5490a7cb | 1456 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
1457 | |
1458 | usbvision->initialized = 0; | |
1459 | ||
483dfdb6 TM |
1460 | usbvision_remove_sysfs(usbvision->vdev); |
1461 | usbvision_unregister_video(usbvision); | |
1462 | ||
6d6a48e5 | 1463 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1464 | |
1df79537 | 1465 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1466 | kfree(usbvision); |
1467 | ||
1468 | PDEBUG(DBG_PROBE, "success"); | |
1469 | } | |
1470 | ||
1471 | ||
c5f48367 | 1472 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1473 | |
1474 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1475 | { | |
c5f48367 | 1476 | int model; |
483dfdb6 TM |
1477 | |
1478 | if (usbvision == NULL) | |
1479 | return; | |
1480 | ||
5490a7cb | 1481 | model = usbvision->dev_model; |
52cb0bf2 | 1482 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1483 | |
5490a7cb HV |
1484 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1485 | usbvision->vin_reg2_preset = | |
1486 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1487 | } else { |
5490a7cb | 1488 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1489 | } |
1490 | ||
5490a7cb | 1491 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
483dfdb6 | 1492 | |
5490a7cb | 1493 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 TM |
1494 | usbvision->ctl_input = 0; |
1495 | ||
1496 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 | 1497 | /* first switch off audio */ |
240d57bb OZ |
1498 | if (usbvision_device_data[model].audio_channels > 0) |
1499 | usbvision_audio_off(usbvision); | |
5490a7cb | 1500 | if (!power_on_at_open) { |
c5f48367 TM |
1501 | /* and then power up the noisy tuner */ |
1502 | usbvision_power_on(usbvision); | |
1ff16c20 | 1503 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1504 | } |
1505 | } | |
1506 | ||
1507 | /* | |
1508 | * usbvision_probe() | |
1509 | * | |
1510 | * This procedure queries device descriptor and accepts the interface | |
1511 | * if it looks like USBVISION video device | |
1512 | * | |
1513 | */ | |
659ae56d MCC |
1514 | static int __devinit usbvision_probe(struct usb_interface *intf, |
1515 | const struct usb_device_id *devid) | |
483dfdb6 | 1516 | { |
2a9f8b5d TM |
1517 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1518 | struct usb_interface *uif; | |
483dfdb6 TM |
1519 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1520 | const struct usb_host_interface *interface; | |
1521 | struct usb_usbvision *usbvision = NULL; | |
1522 | const struct usb_endpoint_descriptor *endpoint; | |
6d6a48e5 | 1523 | int model, i; |
483dfdb6 TM |
1524 | |
1525 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
659ae56d MCC |
1526 | dev->descriptor.idVendor, |
1527 | dev->descriptor.idProduct, ifnum); | |
2a9f8b5d | 1528 | |
659ae56d | 1529 | model = devid->driver_info; |
6d6a48e5 HV |
1530 | if (model < 0 || model >= usbvision_device_data_size) { |
1531 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
f8a389db MCC |
1532 | return -ENODEV; |
1533 | } | |
d2db42dd | 1534 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1535 | usbvision_device_data[model].model_string); |
483dfdb6 | 1536 | |
6d6a48e5 | 1537 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1538 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
6d6a48e5 | 1539 | else |
483dfdb6 | 1540 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
483dfdb6 | 1541 | endpoint = &interface->endpoint[1].desc; |
2230c3c8 | 1542 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1543 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1544 | __func__, ifnum); |
be9ed511 | 1545 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1546 | __func__, endpoint->bmAttributes); |
483dfdb6 TM |
1547 | return -ENODEV; |
1548 | } | |
13417982 | 1549 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1550 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1551 | __func__, ifnum); |
483dfdb6 TM |
1552 | return -ENODEV; |
1553 | } | |
1554 | ||
a878440d JG |
1555 | usbvision = usbvision_alloc(dev, intf); |
1556 | if (usbvision == NULL) { | |
be9ed511 | 1557 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
483dfdb6 TM |
1558 | return -ENOMEM; |
1559 | } | |
659ae56d | 1560 | |
6d6a48e5 | 1561 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1562 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1563 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1564 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1565 | else |
5490a7cb | 1566 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1567 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1568 | |
2a9f8b5d TM |
1569 | /* compute alternate max packet sizes */ |
1570 | uif = dev->actconfig->interface[0]; | |
1571 | ||
6d6a48e5 HV |
1572 | usbvision->num_alt = uif->num_altsetting; |
1573 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
1574 | usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); | |
2a9f8b5d | 1575 | if (usbvision->alt_max_pkt_size == NULL) { |
be9ed511 | 1576 | dev_err(&intf->dev, "usbvision: out of memory!\n"); |
2a9f8b5d TM |
1577 | return -ENOMEM; |
1578 | } | |
1579 | ||
6d6a48e5 | 1580 | for (i = 0; i < usbvision->num_alt; i++) { |
2a9f8b5d TM |
1581 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. |
1582 | wMaxPacketSize); | |
1583 | usbvision->alt_max_pkt_size[i] = | |
1584 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6d6a48e5 | 1585 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, |
2a9f8b5d TM |
1586 | usbvision->alt_max_pkt_size[i]); |
1587 | } | |
1588 | ||
1589 | ||
483dfdb6 TM |
1590 | usbvision->nr = usbvision_nr++; |
1591 | ||
5490a7cb | 1592 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
6d6a48e5 | 1593 | if (usbvision->have_tuner) |
5490a7cb | 1594 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 | 1595 | |
5490a7cb | 1596 | usbvision->dev_model = model; |
483dfdb6 TM |
1597 | usbvision->remove_pending = 0; |
1598 | usbvision->iface = ifnum; | |
5490a7cb | 1599 | usbvision->iface_alt = 0; |
483dfdb6 | 1600 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1601 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1602 | usbvision->usb_bandwidth = 0; |
1603 | usbvision->user = 0; | |
5490a7cb | 1604 | usbvision->streaming = stream_off; |
483dfdb6 | 1605 | usbvision_configure_video(usbvision); |
8403472f | 1606 | usbvision_register_video(usbvision); |
483dfdb6 | 1607 | |
483dfdb6 TM |
1608 | usbvision_create_sysfs(usbvision->vdev); |
1609 | ||
1610 | PDEBUG(DBG_PROBE, "success"); | |
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | ||
1615 | /* | |
1616 | * usbvision_disconnect() | |
1617 | * | |
1618 | * This procedure stops all driver activity, deallocates interface-private | |
1619 | * structure (pointed by 'ptr') and after that driver should be removable | |
1620 | * with no ill consequences. | |
1621 | * | |
1622 | */ | |
1623 | static void __devexit usbvision_disconnect(struct usb_interface *intf) | |
1624 | { | |
aeb506aa | 1625 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1626 | |
1627 | PDEBUG(DBG_PROBE, ""); | |
1628 | ||
1629 | if (usbvision == NULL) { | |
4202066c | 1630 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1631 | return; |
1632 | } | |
483dfdb6 | 1633 | |
c627b9d1 | 1634 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 | 1635 | |
52cb0bf2 | 1636 | /* At this time we ask to cancel outstanding URBs */ |
483dfdb6 TM |
1637 | usbvision_stop_isoc(usbvision); |
1638 | ||
f1ba28c3 HV |
1639 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
1640 | ||
483dfdb6 | 1641 | if (usbvision->power) { |
1ff16c20 | 1642 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1643 | usbvision_power_off(usbvision); |
1644 | } | |
52cb0bf2 | 1645 | usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ |
483dfdb6 TM |
1646 | |
1647 | usb_put_dev(usbvision->dev); | |
52cb0bf2 | 1648 | usbvision->dev = NULL; /* USB device is no more */ |
483dfdb6 | 1649 | |
c627b9d1 | 1650 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1651 | |
1652 | if (usbvision->user) { | |
c5f48367 | 1653 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1654 | __func__); |
483dfdb6 TM |
1655 | wake_up_interruptible(&usbvision->wait_frame); |
1656 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1657 | } else { |
483dfdb6 TM |
1658 | usbvision_release(usbvision); |
1659 | } | |
1660 | ||
1661 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1662 | } |
1663 | ||
1664 | static struct usb_driver usbvision_driver = { | |
1665 | .name = "usbvision", | |
1666 | .id_table = usbvision_table, | |
1667 | .probe = usbvision_probe, | |
e36bc31f | 1668 | .disconnect = __devexit_p(usbvision_disconnect), |
483dfdb6 TM |
1669 | }; |
1670 | ||
483dfdb6 TM |
1671 | /* |
1672 | * usbvision_init() | |
1673 | * | |
1674 | * This code is run to initialize the driver. | |
1675 | * | |
1676 | */ | |
1677 | static int __init usbvision_init(void) | |
1678 | { | |
5490a7cb | 1679 | int err_code; |
483dfdb6 TM |
1680 | |
1681 | PDEBUG(DBG_PROBE, ""); | |
1682 | ||
483dfdb6 TM |
1683 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1684 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1685 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1686 | |
1687 | /* disable planar mode support unless compression enabled */ | |
6d6a48e5 | 1688 | if (isoc_mode != ISOC_MODE_COMPRESS) { |
52cb0bf2 HV |
1689 | /* FIXME : not the right way to set supported flag */ |
1690 | usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ | |
1691 | usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ | |
483dfdb6 TM |
1692 | } |
1693 | ||
5490a7cb | 1694 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1695 | |
5490a7cb | 1696 | if (err_code == 0) { |
de6a1b8e | 1697 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1698 | PDEBUG(DBG_PROBE, "success"); |
1699 | } | |
5490a7cb | 1700 | return err_code; |
483dfdb6 TM |
1701 | } |
1702 | ||
1703 | static void __exit usbvision_exit(void) | |
1704 | { | |
6d6a48e5 | 1705 | PDEBUG(DBG_PROBE, ""); |
483dfdb6 | 1706 | |
6d6a48e5 HV |
1707 | usb_deregister(&usbvision_driver); |
1708 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1709 | } |
1710 | ||
1711 | module_init(usbvision_init); | |
1712 | module_exit(usbvision_exit); | |
1713 | ||
1714 | /* | |
1715 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
1716 | * --------------------------------------------------------------------------- | |
1717 | * Local variables: | |
1718 | * c-basic-offset: 8 | |
1719 | * End: | |
1720 | */ |