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483dfdb6 | 1 | /* |
3ff4ad81 | 2 | * USB USBVISION Video device driver 0.9.10 |
483dfdb6 TM |
3 | * |
4 | * | |
5 | * | |
6 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> | |
7 | * | |
8 | * This module is part of usbvision driver project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Let's call the version 0.... until compression decoding is completely | |
25 | * implemented. | |
26 | * | |
27 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
28 | * It was based on USB CPiA driver written by Peter Pregler, | |
29 | * Scott J. Bertin and Johannes Erdfelt | |
30 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
31 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
32 | * Updates to driver completed by Dwaine P. Garden | |
33 | * | |
34 | * | |
35 | * TODO: | |
36 | * - use submit_urb for all setup packets | |
37 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
38 | * nt1003 memory. | |
c5f48367 TM |
39 | * - Add audio on endpoint 3 for nt1004 chip. |
40 | * Seems impossible, needs a codec interface. Which one? | |
483dfdb6 TM |
41 | * - Clean up the driver. |
42 | * - optimization for performance. | |
43 | * - Add Videotext capability (VBI). Working on it..... | |
44 | * - Check audio for other devices | |
45 | * | |
46 | */ | |
47 | ||
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> | |
6d6a48e5 | 59 | #include <linux/io.h> |
483dfdb6 | 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 | |
6d6a48e5 HV |
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) | |
6d6a48e5 HV |
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 | 98 | #else |
6d6a48e5 | 99 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
100 | #endif |
101 | ||
6d6a48e5 HV |
102 | #define DBG_IO (1 << 1) |
103 | #define DBG_PROBE (1 << 2) | |
104 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 105 | |
52cb0bf2 | 106 | /* String operations */ |
6d6a48e5 HV |
107 | #define rmspace(str) while (*str == ' ') str++; |
108 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
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" }, | |
52cb0bf2 | 121 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
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 | ||
52cb0bf2 | 156 | /* Misc stuff */ |
483dfdb6 TM |
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; | |
6d6a48e5 | 208 | if (usbvision->user) |
1df79537 | 209 | call_all(usbvision, core, g_ctrl, &ctrl); |
2a9f8b5d | 210 | return sprintf(buf, "%d\n", ctrl.value); |
483dfdb6 | 211 | } |
54bd5b66 | 212 | static DEVICE_ATTR(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; | |
6d6a48e5 | 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; | |
6d6a48e5 | 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; | |
6d6a48e5 | 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", |
6d6a48e5 | 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", |
6d6a48e5 | 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; | |
6d6a48e5 | 294 | |
ed00b41d DG |
295 | if (!vdev) |
296 | return; | |
297 | do { | |
22a04f10 | 298 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 299 | if (res < 0) |
ed00b41d | 300 | break; |
22a04f10 | 301 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 302 | if (res < 0) |
ed00b41d | 303 | break; |
22a04f10 | 304 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 305 | if (res < 0) |
ed00b41d | 306 | break; |
22a04f10 | 307 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 308 | if (res < 0) |
ed00b41d | 309 | break; |
22a04f10 | 310 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 311 | if (res < 0) |
ed00b41d | 312 | break; |
22a04f10 | 313 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 314 | if (res < 0) |
ed00b41d | 315 | break; |
22a04f10 | 316 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 317 | if (res < 0) |
ed00b41d | 318 | break; |
22a04f10 | 319 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 320 | if (res < 0) |
ed00b41d | 321 | break; |
22a04f10 | 322 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 323 | if (res >= 0) |
ed00b41d DG |
324 | return; |
325 | } while (0); | |
326 | ||
be9ed511 | 327 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
328 | } |
329 | ||
330 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
331 | { | |
332 | if (vdev) { | |
22a04f10 HV |
333 | device_remove_file(&vdev->dev, &dev_attr_version); |
334 | device_remove_file(&vdev->dev, &dev_attr_model); | |
335 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
336 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
337 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
338 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
339 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
340 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
341 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
342 | } |
343 | } | |
344 | ||
483dfdb6 TM |
345 | /* |
346 | * usbvision_open() | |
347 | * | |
348 | * This is part of Video 4 Linux API. The driver can be opened by one | |
349 | * client only (checks internal counter 'usbvision->user'). The procedure | |
350 | * then allocates buffers needed for video processing. | |
351 | * | |
352 | */ | |
bec43661 | 353 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 354 | { |
c170ecf4 | 355 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 356 | int err_code = 0; |
483dfdb6 TM |
357 | |
358 | PDEBUG(DBG_IO, "open"); | |
359 | ||
5490a7cb | 360 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
361 | |
362 | if (usbvision->user) | |
5490a7cb | 363 | err_code = -EBUSY; |
483dfdb6 | 364 | else { |
6f78e186 | 365 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 366 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 367 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
368 | /* Allocate intermediate decompression buffers |
369 | only if needed */ | |
5490a7cb | 370 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 371 | } |
5490a7cb | 372 | if (err_code) { |
483dfdb6 | 373 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 374 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
375 | usbvision_decompress_free(usbvision); |
376 | } | |
377 | } | |
378 | ||
379 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 380 | if (!err_code) { |
483dfdb6 TM |
381 | if (usbvision->power == 0) { |
382 | usbvision_power_on(usbvision); | |
1ff16c20 | 383 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
384 | } |
385 | ||
386 | /* Send init sequence only once, it's large! */ | |
387 | if (!usbvision->initialized) { | |
388 | int setup_ok = 0; | |
6d6a48e5 | 389 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
390 | if (setup_ok) |
391 | usbvision->initialized = 1; | |
392 | else | |
5490a7cb | 393 | err_code = -EBUSY; |
483dfdb6 TM |
394 | } |
395 | ||
5490a7cb | 396 | if (!err_code) { |
483dfdb6 | 397 | usbvision_begin_streaming(usbvision); |
5490a7cb | 398 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 399 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 400 | usbvision_muxsel(usbvision, 0); |
483dfdb6 | 401 | usbvision->user++; |
c5f48367 | 402 | } else { |
5490a7cb | 403 | if (power_on_at_open) { |
1ff16c20 | 404 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
405 | usbvision_power_off(usbvision); |
406 | usbvision->initialized = 0; | |
407 | } | |
408 | } | |
483dfdb6 TM |
409 | } |
410 | ||
483dfdb6 TM |
411 | /* prepare queues */ |
412 | usbvision_empty_framequeues(usbvision); | |
413 | ||
414 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 415 | return err_code; |
483dfdb6 TM |
416 | } |
417 | ||
418 | /* | |
419 | * usbvision_v4l2_close() | |
420 | * | |
421 | * This is part of Video 4 Linux API. The procedure | |
422 | * stops streaming and deallocates all buffers that were earlier | |
423 | * allocated in usbvision_v4l2_open(). | |
424 | * | |
425 | */ | |
bec43661 | 426 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 427 | { |
c170ecf4 | 428 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
429 | |
430 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 TM |
431 | |
432 | usbvision_audio_off(usbvision); | |
433 | usbvision_restart_isoc(usbvision); | |
434 | usbvision_stop_isoc(usbvision); | |
435 | ||
436 | usbvision_decompress_free(usbvision); | |
38284ba3 | 437 | usbvision_frames_free(usbvision); |
6f78e186 | 438 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 439 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
440 | |
441 | usbvision->user--; | |
442 | ||
5490a7cb | 443 | if (power_on_at_open) { |
c5f48367 TM |
444 | /* power off in a little while |
445 | to avoid off/on every close/open short sequences */ | |
5490a7cb | 446 | usbvision_set_power_off_timer(usbvision); |
483dfdb6 TM |
447 | usbvision->initialized = 0; |
448 | } | |
449 | ||
483dfdb6 | 450 | if (usbvision->remove_pending) { |
d2db42dd | 451 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
452 | usbvision_release(usbvision); |
453 | } | |
454 | ||
455 | PDEBUG(DBG_IO, "success"); | |
483dfdb6 TM |
456 | return 0; |
457 | } | |
458 | ||
459 | ||
460 | /* | |
461 | * usbvision_ioctl() | |
462 | * | |
463 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
464 | * | |
465 | */ | |
c5f48367 | 466 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 467 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 468 | struct v4l2_dbg_register *reg) |
483dfdb6 | 469 | { |
c170ecf4 | 470 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 471 | int err_code; |
483dfdb6 | 472 | |
aecde8b5 | 473 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
474 | return -EINVAL; |
475 | /* NT100x has a 8-bit register space */ | |
5490a7cb HV |
476 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
477 | if (err_code < 0) { | |
be9ed511 MCC |
478 | dev_err(&usbvision->vdev->dev, |
479 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", | |
5490a7cb HV |
480 | __func__, err_code); |
481 | return err_code; | |
c5f48367 | 482 | } |
5490a7cb | 483 | reg->val = err_code; |
aecde8b5 | 484 | reg->size = 1; |
c5f48367 TM |
485 | return 0; |
486 | } | |
483dfdb6 | 487 | |
6d6a48e5 | 488 | static int vidioc_s_register(struct file *file, void *priv, |
aecde8b5 | 489 | struct v4l2_dbg_register *reg) |
c5f48367 | 490 | { |
c170ecf4 | 491 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 492 | int err_code; |
62d50add | 493 | |
aecde8b5 | 494 | if (!v4l2_chip_match_host(®->match)) |
c5f48367 TM |
495 | return -EINVAL; |
496 | /* NT100x has a 8-bit register space */ | |
6d6a48e5 | 497 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 498 | if (err_code < 0) { |
be9ed511 MCC |
499 | dev_err(&usbvision->vdev->dev, |
500 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", | |
5490a7cb HV |
501 | __func__, err_code); |
502 | return err_code; | |
c5f48367 TM |
503 | } |
504 | return 0; | |
505 | } | |
483dfdb6 | 506 | #endif |
c5f48367 | 507 | |
6d6a48e5 | 508 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
509 | struct v4l2_capability *vc) |
510 | { | |
c170ecf4 | 511 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
512 | |
513 | strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); | |
514 | strlcpy(vc->card, | |
5490a7cb | 515 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 516 | sizeof(vc->card)); |
6f2a2781 | 517 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
c5f48367 TM |
518 | vc->version = USBVISION_DRIVER_VERSION; |
519 | vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
520 | V4L2_CAP_AUDIO | | |
521 | V4L2_CAP_READWRITE | | |
522 | V4L2_CAP_STREAMING | | |
523 | (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); | |
524 | return 0; | |
525 | } | |
526 | ||
6d6a48e5 | 527 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
528 | struct v4l2_input *vi) |
529 | { | |
c170ecf4 | 530 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
531 | int chan; |
532 | ||
223ffe5f | 533 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 534 | return -EINVAL; |
6d6a48e5 | 535 | if (usbvision->have_tuner) |
c5f48367 | 536 | chan = vi->index; |
6d6a48e5 | 537 | else |
52cb0bf2 | 538 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 539 | |
c5f48367 TM |
540 | /* Determine the requested input characteristics |
541 | specific for each usbvision card model */ | |
6d6a48e5 | 542 | switch (chan) { |
c5f48367 | 543 | case 0: |
5490a7cb | 544 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
c5f48367 TM |
545 | strcpy(vi->name, "White Video Input"); |
546 | } else { | |
547 | strcpy(vi->name, "Television"); | |
548 | vi->type = V4L2_INPUT_TYPE_TUNER; | |
549 | vi->audioset = 1; | |
550 | vi->tuner = chan; | |
551 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 552 | } |
c5f48367 TM |
553 | break; |
554 | case 1: | |
555 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 556 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 557 | strcpy(vi->name, "Green Video Input"); |
6d6a48e5 | 558 | else |
c5f48367 | 559 | strcpy(vi->name, "Composite Video Input"); |
c5f48367 TM |
560 | vi->std = V4L2_STD_PAL; |
561 | break; | |
562 | case 2: | |
563 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 564 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
c5f48367 | 565 | strcpy(vi->name, "Yellow Video Input"); |
6d6a48e5 | 566 | else |
c5f48367 | 567 | strcpy(vi->name, "S-Video Input"); |
c5f48367 TM |
568 | vi->std = V4L2_STD_PAL; |
569 | break; | |
570 | case 3: | |
571 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
572 | strcpy(vi->name, "Red Video Input"); | |
573 | vi->std = V4L2_STD_PAL; | |
574 | break; | |
575 | } | |
576 | return 0; | |
577 | } | |
483dfdb6 | 578 | |
6d6a48e5 | 579 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 580 | { |
c170ecf4 | 581 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 582 | |
c5f48367 TM |
583 | *input = usbvision->ctl_input; |
584 | return 0; | |
585 | } | |
483dfdb6 | 586 | |
6d6a48e5 | 587 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 588 | { |
c170ecf4 | 589 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 590 | |
f14a2972 | 591 | if (input >= usbvision->video_inputs) |
c5f48367 | 592 | return -EINVAL; |
483dfdb6 | 593 | |
66a17879 | 594 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
595 | usbvision_set_input(usbvision); |
596 | usbvision_set_output(usbvision, | |
597 | usbvision->curwidth, | |
598 | usbvision->curheight); | |
c5f48367 TM |
599 | return 0; |
600 | } | |
483dfdb6 | 601 | |
6d6a48e5 | 602 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) |
c5f48367 | 603 | { |
c170ecf4 HV |
604 | struct usb_usbvision *usbvision = video_drvdata(file); |
605 | ||
6d6a48e5 | 606 | usbvision->tvnorm_id = *id; |
483dfdb6 | 607 | |
5490a7cb | 608 | call_all(usbvision, core, s_std, usbvision->tvnorm_id); |
66a17879 TM |
609 | /* propagate the change to the decoder */ |
610 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 611 | |
c5f48367 TM |
612 | return 0; |
613 | } | |
483dfdb6 | 614 | |
6d6a48e5 | 615 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
616 | struct v4l2_tuner *vt) |
617 | { | |
c170ecf4 | 618 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 619 | |
52cb0bf2 | 620 | if (!usbvision->have_tuner || vt->index) /* Only tuner 0 */ |
c5f48367 | 621 | return -EINVAL; |
6d6a48e5 | 622 | if (usbvision->radio) { |
c5f48367 TM |
623 | strcpy(vt->name, "Radio"); |
624 | vt->type = V4L2_TUNER_RADIO; | |
625 | } else { | |
626 | strcpy(vt->name, "Television"); | |
627 | } | |
628 | /* Let clients fill in the remainder of this struct */ | |
1df79537 | 629 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 630 | |
c5f48367 TM |
631 | return 0; |
632 | } | |
483dfdb6 | 633 | |
6d6a48e5 | 634 | static int vidioc_s_tuner(struct file *file, void *priv, |
c5f48367 TM |
635 | struct v4l2_tuner *vt) |
636 | { | |
c170ecf4 | 637 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 638 | |
52cb0bf2 | 639 | /* Only no or one tuner for now */ |
c5f48367 TM |
640 | if (!usbvision->have_tuner || vt->index) |
641 | return -EINVAL; | |
642 | /* let clients handle this */ | |
1df79537 | 643 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 644 | |
c5f48367 TM |
645 | return 0; |
646 | } | |
483dfdb6 | 647 | |
6d6a48e5 | 648 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
649 | struct v4l2_frequency *freq) |
650 | { | |
c170ecf4 | 651 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 652 | |
52cb0bf2 | 653 | freq->tuner = 0; /* Only one tuner */ |
6d6a48e5 | 654 | if (usbvision->radio) |
c5f48367 | 655 | freq->type = V4L2_TUNER_RADIO; |
6d6a48e5 | 656 | else |
c5f48367 | 657 | freq->type = V4L2_TUNER_ANALOG_TV; |
c5f48367 | 658 | freq->frequency = usbvision->freq; |
483dfdb6 | 659 | |
c5f48367 TM |
660 | return 0; |
661 | } | |
483dfdb6 | 662 | |
6d6a48e5 | 663 | static int vidioc_s_frequency(struct file *file, void *priv, |
c5f48367 TM |
664 | struct v4l2_frequency *freq) |
665 | { | |
c170ecf4 | 666 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 667 | |
52cb0bf2 | 668 | /* Only no or one tuner for now */ |
c5f48367 TM |
669 | if (!usbvision->have_tuner || freq->tuner) |
670 | return -EINVAL; | |
483dfdb6 | 671 | |
c5f48367 | 672 | usbvision->freq = freq->frequency; |
1df79537 | 673 | call_all(usbvision, tuner, s_frequency, freq); |
483dfdb6 | 674 | |
c5f48367 TM |
675 | return 0; |
676 | } | |
483dfdb6 | 677 | |
6d6a48e5 | 678 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) |
c5f48367 | 679 | { |
c170ecf4 | 680 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 681 | |
6d6a48e5 HV |
682 | if (usbvision->radio) |
683 | strcpy(a->name, "Radio"); | |
684 | else | |
c5f48367 | 685 | strcpy(a->name, "TV"); |
483dfdb6 | 686 | |
c5f48367 TM |
687 | return 0; |
688 | } | |
483dfdb6 | 689 | |
6d6a48e5 | 690 | static int vidioc_s_audio(struct file *file, void *fh, |
c5f48367 TM |
691 | struct v4l2_audio *a) |
692 | { | |
6d6a48e5 | 693 | if (a->index) |
c5f48367 | 694 | return -EINVAL; |
c5f48367 TM |
695 | return 0; |
696 | } | |
483dfdb6 | 697 | |
6d6a48e5 | 698 | static int vidioc_queryctrl(struct file *file, void *priv, |
c5f48367 TM |
699 | struct v4l2_queryctrl *ctrl) |
700 | { | |
c170ecf4 | 701 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 702 | |
1df79537 | 703 | call_all(usbvision, core, queryctrl, ctrl); |
483dfdb6 | 704 | |
c5f48367 TM |
705 | if (!ctrl->type) |
706 | return -EINVAL; | |
483dfdb6 | 707 | |
c5f48367 TM |
708 | return 0; |
709 | } | |
483dfdb6 | 710 | |
6d6a48e5 | 711 | static int vidioc_g_ctrl(struct file *file, void *priv, |
c5f48367 TM |
712 | struct v4l2_control *ctrl) |
713 | { | |
c170ecf4 | 714 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 715 | |
6d6a48e5 | 716 | call_all(usbvision, core, g_ctrl, ctrl); |
c5f48367 TM |
717 | return 0; |
718 | } | |
719 | ||
6d6a48e5 | 720 | static int vidioc_s_ctrl(struct file *file, void *priv, |
c5f48367 TM |
721 | struct v4l2_control *ctrl) |
722 | { | |
c170ecf4 | 723 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 724 | |
6d6a48e5 | 725 | call_all(usbvision, core, s_ctrl, ctrl); |
c5f48367 TM |
726 | return 0; |
727 | } | |
728 | ||
6d6a48e5 | 729 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
730 | void *priv, struct v4l2_requestbuffers *vr) |
731 | { | |
c170ecf4 | 732 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
733 | int ret; |
734 | ||
6d6a48e5 | 735 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
736 | |
737 | /* Check input validity: | |
738 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 739 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
740 | return -EINVAL; |
741 | ||
6d6a48e5 HV |
742 | if (usbvision->streaming == stream_on) { |
743 | ret = usbvision_stream_interrupt(usbvision); | |
744 | if (ret) | |
c5f48367 | 745 | return ret; |
483dfdb6 | 746 | } |
c5f48367 TM |
747 | |
748 | usbvision_frames_free(usbvision); | |
749 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 750 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 751 | |
5490a7cb | 752 | usbvision->cur_frame = NULL; |
c5f48367 | 753 | |
483dfdb6 TM |
754 | return 0; |
755 | } | |
756 | ||
6d6a48e5 | 757 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 758 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 759 | { |
c170ecf4 | 760 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
761 | struct usbvision_frame *frame; |
762 | ||
763 | /* FIXME : must control | |
764 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 765 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 766 | return -EINVAL; |
c5f48367 TM |
767 | /* Updating the corresponding frame state */ |
768 | vb->flags = 0; | |
769 | frame = &usbvision->frame[vb->index]; | |
6d6a48e5 | 770 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 771 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 772 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 773 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 774 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
775 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
776 | vb->memory = V4L2_MEMORY_MMAP; | |
777 | ||
6d6a48e5 | 778 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
779 | |
780 | vb->memory = V4L2_MEMORY_MMAP; | |
781 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
782 | vb->length = usbvision->curwidth * |
783 | usbvision->curheight * | |
c5f48367 TM |
784 | usbvision->palette.bytes_per_pixel; |
785 | vb->timestamp = usbvision->frame[vb->index].timestamp; | |
786 | vb->sequence = usbvision->frame[vb->index].sequence; | |
787 | return 0; | |
483dfdb6 TM |
788 | } |
789 | ||
6d6a48e5 | 790 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 791 | { |
c170ecf4 | 792 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
793 | struct usbvision_frame *frame; |
794 | unsigned long lock_flags; | |
795 | ||
796 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 797 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 798 | return -EINVAL; |
c5f48367 TM |
799 | |
800 | frame = &usbvision->frame[vb->index]; | |
801 | ||
6d6a48e5 | 802 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 803 | return -EAGAIN; |
c5f48367 TM |
804 | |
805 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
806 | frame->grabstate = frame_state_ready; |
807 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
808 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
809 | ||
810 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
811 | ||
812 | /* set v4l2_format index */ | |
813 | frame->v4l2_format = usbvision->palette; | |
814 | ||
815 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
816 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
817 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
818 | ||
819 | return 0; | |
820 | } | |
821 | ||
6d6a48e5 | 822 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 823 | { |
c170ecf4 | 824 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
825 | int ret; |
826 | struct usbvision_frame *f; | |
827 | unsigned long lock_flags; | |
828 | ||
c5f48367 | 829 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 830 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
831 | return -EINVAL; |
832 | ret = wait_event_interruptible | |
833 | (usbvision->wait_frame, | |
834 | !list_empty(&(usbvision->outqueue))); | |
835 | if (ret) | |
836 | return ret; | |
837 | } | |
838 | ||
839 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
840 | f = list_entry(usbvision->outqueue.next, | |
841 | struct usbvision_frame, frame); | |
842 | list_del(usbvision->outqueue.next); | |
843 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
844 | ||
5490a7cb | 845 | f->grabstate = frame_state_unused; |
c5f48367 TM |
846 | |
847 | vb->memory = V4L2_MEMORY_MMAP; | |
848 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
849 | V4L2_BUF_FLAG_QUEUED | | |
850 | V4L2_BUF_FLAG_DONE; | |
851 | vb->index = f->index; | |
852 | vb->sequence = f->sequence; | |
853 | vb->timestamp = f->timestamp; | |
854 | vb->field = V4L2_FIELD_NONE; | |
855 | vb->bytesused = f->scanlength; | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
860 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
861 | { | |
c170ecf4 | 862 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 863 | |
5490a7cb | 864 | usbvision->streaming = stream_on; |
1df79537 | 865 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
866 | |
867 | return 0; | |
868 | } | |
869 | ||
870 | static int vidioc_streamoff(struct file *file, | |
871 | void *priv, enum v4l2_buf_type type) | |
872 | { | |
c170ecf4 | 873 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
874 | |
875 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
876 | return -EINVAL; | |
877 | ||
6d6a48e5 | 878 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
879 | usbvision_stream_interrupt(usbvision); |
880 | /* Stop all video streamings */ | |
1df79537 | 881 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
882 | } |
883 | usbvision_empty_framequeues(usbvision); | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
6d6a48e5 | 888 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
889 | struct v4l2_fmtdesc *vfd) |
890 | { | |
6d6a48e5 | 891 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 892 | return -EINVAL; |
6d6a48e5 | 893 | strcpy(vfd->description, usbvision_v4l2_format[vfd->index].desc); |
c5f48367 | 894 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
895 | return 0; |
896 | } | |
897 | ||
6d6a48e5 | 898 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
899 | struct v4l2_format *vf) |
900 | { | |
c170ecf4 | 901 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
902 | vf->fmt.pix.width = usbvision->curwidth; |
903 | vf->fmt.pix.height = usbvision->curheight; | |
904 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
905 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
906 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
907 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
908 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
909 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
6d6a48e5 | 914 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
915 | struct v4l2_format *vf) |
916 | { | |
c170ecf4 | 917 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 918 | int format_idx; |
c5f48367 TM |
919 | |
920 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
921 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
922 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
923 | usbvision_v4l2_format[format_idx].format) { |
924 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
925 | break; |
926 | } | |
927 | } | |
928 | /* robustness */ | |
6d6a48e5 | 929 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 930 | return -EINVAL; |
c5f48367 TM |
931 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
932 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
933 | ||
934 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
935 | usbvision->palette.bytes_per_pixel; | |
936 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
937 | ||
938 | return 0; | |
939 | } | |
940 | ||
78b526a4 | 941 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
942 | struct v4l2_format *vf) |
943 | { | |
c170ecf4 | 944 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
945 | int ret; |
946 | ||
6d6a48e5 HV |
947 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
948 | if (ret) | |
c5f48367 | 949 | return ret; |
c5f48367 TM |
950 | |
951 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
952 | if (usbvision->streaming == stream_on) { |
953 | ret = usbvision_stream_interrupt(usbvision); | |
954 | if (ret) | |
c5f48367 TM |
955 | return ret; |
956 | } | |
957 | usbvision_frames_free(usbvision); | |
958 | usbvision_empty_framequeues(usbvision); | |
959 | ||
5490a7cb | 960 | usbvision->cur_frame = NULL; |
c5f48367 TM |
961 | |
962 | /* by now we are committed to the new data... */ | |
c5f48367 | 963 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
964 | |
965 | return 0; | |
966 | } | |
483dfdb6 | 967 | |
8a5ab415 | 968 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
483dfdb6 TM |
969 | size_t count, loff_t *ppos) |
970 | { | |
c170ecf4 | 971 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
972 | int noblock = file->f_flags & O_NONBLOCK; |
973 | unsigned long lock_flags; | |
6d6a48e5 | 974 | int ret, i; |
483dfdb6 TM |
975 | struct usbvision_frame *frame; |
976 | ||
d2db42dd | 977 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 978 | (unsigned long)count, noblock); |
483dfdb6 TM |
979 | |
980 | if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) | |
981 | return -EFAULT; | |
982 | ||
c5f48367 TM |
983 | /* This entry point is compatible with the mmap routines |
984 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
985 | to get frames or call read on the device. */ | |
6d6a48e5 | 986 | if (!usbvision->num_frames) { |
c5f48367 TM |
987 | /* First, allocate some frames to work with |
988 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
989 | usbvision_frames_free(usbvision); |
990 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 991 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
992 | } |
993 | ||
6d6a48e5 | 994 | if (usbvision->streaming != stream_on) { |
6f78e186 | 995 | /* no stream is running, make it running ! */ |
5490a7cb | 996 | usbvision->streaming = stream_on; |
1df79537 | 997 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 998 | } |
483dfdb6 | 999 | |
c5f48367 TM |
1000 | /* Then, enqueue as many frames as possible |
1001 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 1002 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 1003 | frame = &usbvision->frame[i]; |
6d6a48e5 | 1004 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 1005 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
1006 | frame->grabstate = frame_state_ready; |
1007 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
1008 | /* Accumulated in usbvision_parse_data() */ |
1009 | frame->scanlength = 0; | |
483dfdb6 TM |
1010 | |
1011 | /* set v4l2_format index */ | |
1012 | frame->v4l2_format = usbvision->palette; | |
1013 | ||
1014 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1015 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
1016 | spin_unlock_irqrestore(&usbvision->queue_lock, |
1017 | lock_flags); | |
483dfdb6 TM |
1018 | } |
1019 | } | |
1020 | ||
1021 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
1022 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 1023 | if (noblock) |
483dfdb6 TM |
1024 | return -EAGAIN; |
1025 | ||
1026 | ret = wait_event_interruptible | |
1027 | (usbvision->wait_frame, | |
1028 | !list_empty(&(usbvision->outqueue))); | |
1029 | if (ret) | |
1030 | return ret; | |
1031 | } | |
1032 | ||
1033 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
1034 | frame = list_entry(usbvision->outqueue.next, | |
1035 | struct usbvision_frame, frame); | |
1036 | list_del(usbvision->outqueue.next); | |
1037 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
1038 | ||
1039 | /* An error returns an empty frame */ | |
5490a7cb | 1040 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
1041 | frame->bytes_read = 0; |
1042 | return 0; | |
1043 | } | |
1044 | ||
c5f48367 | 1045 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 1046 | __func__, |
c5f48367 | 1047 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
1048 | |
1049 | /* copy bytes to user space; we allow for partials reads */ | |
1050 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
1051 | count = frame->scanlength - frame->bytes_read; | |
1052 | ||
6d6a48e5 | 1053 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 1054 | return -EFAULT; |
483dfdb6 TM |
1055 | |
1056 | frame->bytes_read += count; | |
c5f48367 | 1057 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 1058 | __func__, |
c5f48367 | 1059 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 1060 | |
c5f48367 | 1061 | /* For now, forget the frame if it has not been read in one shot. */ |
6d6a48e5 | 1062 | /* if (frame->bytes_read >= frame->scanlength) {*/ /* All data has been read */ |
483dfdb6 TM |
1063 | frame->bytes_read = 0; |
1064 | ||
1065 | /* Mark it as available to be used again. */ | |
5490a7cb | 1066 | frame->grabstate = frame_state_unused; |
6d6a48e5 | 1067 | /* } */ |
483dfdb6 TM |
1068 | |
1069 | return count; | |
1070 | } | |
1071 | ||
1072 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) | |
1073 | { | |
1074 | unsigned long size = vma->vm_end - vma->vm_start, | |
1075 | start = vma->vm_start; | |
1076 | void *pos; | |
1077 | u32 i; | |
c170ecf4 | 1078 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1079 | |
6f78e186 TM |
1080 | PDEBUG(DBG_MMAP, "mmap"); |
1081 | ||
6d6a48e5 | 1082 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1083 | return -EFAULT; |
483dfdb6 TM |
1084 | |
1085 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1086 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1087 | return -EINVAL; |
1088 | } | |
1089 | ||
6f78e186 | 1090 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1091 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1092 | vma->vm_pgoff) | |
483dfdb6 TM |
1093 | break; |
1094 | } | |
6f78e186 | 1095 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1096 | PDEBUG(DBG_MMAP, |
1097 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1098 | return -EINVAL; |
1099 | } | |
1100 | ||
1101 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
1102 | vma->vm_flags |= VM_IO; | |
1103 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
1104 | ||
1105 | pos = usbvision->frame[i].data; | |
1106 | while (size > 0) { | |
483dfdb6 | 1107 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1108 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1109 | return -EAGAIN; |
1110 | } | |
1111 | start += PAGE_SIZE; | |
1112 | pos += PAGE_SIZE; | |
1113 | size -= PAGE_SIZE; | |
1114 | } | |
1115 | ||
483dfdb6 TM |
1116 | return 0; |
1117 | } | |
1118 | ||
1119 | ||
1120 | /* | |
1121 | * Here comes the stuff for radio on usbvision based devices | |
1122 | * | |
1123 | */ | |
bec43661 | 1124 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1125 | { |
c170ecf4 | 1126 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1127 | int err_code = 0; |
483dfdb6 | 1128 | |
d2db42dd | 1129 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1130 | |
483dfdb6 | 1131 | if (usbvision->user) { |
be9ed511 MCC |
1132 | dev_err(&usbvision->rdev->dev, |
1133 | "%s: Someone tried to open an already opened USBVision Radio!\n", | |
1134 | __func__); | |
5490a7cb | 1135 | err_code = -EBUSY; |
6d6a48e5 HV |
1136 | } else { |
1137 | if (power_on_at_open) { | |
5490a7cb | 1138 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
1139 | if (usbvision->power == 0) { |
1140 | usbvision_power_on(usbvision); | |
1ff16c20 | 1141 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1142 | } |
1143 | } | |
1144 | ||
2a9f8b5d | 1145 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1146 | err_code = usbvision_set_alternate(usbvision); |
1147 | if (err_code < 0) { | |
1148 | usbvision->last_error = err_code; | |
1149 | err_code = -EBUSY; | |
544e6175 | 1150 | goto out; |
2a9f8b5d TM |
1151 | } |
1152 | ||
52cb0bf2 | 1153 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1154 | usbvision->radio = 1; |
1df79537 | 1155 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1156 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1157 | usbvision->user++; | |
1158 | } | |
1159 | ||
5490a7cb HV |
1160 | if (err_code) { |
1161 | if (power_on_at_open) { | |
1ff16c20 | 1162 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1163 | usbvision_power_off(usbvision); |
1164 | usbvision->initialized = 0; | |
1165 | } | |
1166 | } | |
544e6175 | 1167 | out: |
5490a7cb | 1168 | return err_code; |
483dfdb6 TM |
1169 | } |
1170 | ||
1171 | ||
bec43661 | 1172 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1173 | { |
c170ecf4 | 1174 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1175 | int err_code = 0; |
483dfdb6 TM |
1176 | |
1177 | PDEBUG(DBG_IO, ""); | |
1178 | ||
2a9f8b5d | 1179 | /* Set packet size to 0 */ |
6d6a48e5 | 1180 | usbvision->iface_alt = 0; |
5490a7cb HV |
1181 | err_code = usb_set_interface(usbvision->dev, usbvision->iface, |
1182 | usbvision->iface_alt); | |
2a9f8b5d | 1183 | |
483dfdb6 | 1184 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1185 | usbvision->radio = 0; |
483dfdb6 TM |
1186 | usbvision->user--; |
1187 | ||
5490a7cb HV |
1188 | if (power_on_at_open) { |
1189 | usbvision_set_power_off_timer(usbvision); | |
483dfdb6 TM |
1190 | usbvision->initialized = 0; |
1191 | } | |
1192 | ||
483dfdb6 | 1193 | if (usbvision->remove_pending) { |
d2db42dd | 1194 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 TM |
1195 | usbvision_release(usbvision); |
1196 | } | |
1197 | ||
483dfdb6 | 1198 | PDEBUG(DBG_IO, "success"); |
5490a7cb | 1199 | return err_code; |
483dfdb6 TM |
1200 | } |
1201 | ||
52cb0bf2 | 1202 | /* Video registration stuff */ |
483dfdb6 | 1203 | |
52cb0bf2 | 1204 | /* Video template */ |
bec43661 | 1205 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1206 | .owner = THIS_MODULE, |
483dfdb6 TM |
1207 | .open = usbvision_v4l2_open, |
1208 | .release = usbvision_v4l2_close, | |
1209 | .read = usbvision_v4l2_read, | |
1210 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1211 | .unlocked_ioctl = video_ioctl2, |
6d6a48e5 | 1212 | /* .poll = video_poll, */ |
483dfdb6 | 1213 | }; |
a399810c HV |
1214 | |
1215 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1216 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1217 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1218 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1219 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1220 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1221 | .vidioc_reqbufs = vidioc_reqbufs, |
1222 | .vidioc_querybuf = vidioc_querybuf, | |
1223 | .vidioc_qbuf = vidioc_qbuf, | |
1224 | .vidioc_dqbuf = vidioc_dqbuf, | |
1225 | .vidioc_s_std = vidioc_s_std, | |
1226 | .vidioc_enum_input = vidioc_enum_input, | |
1227 | .vidioc_g_input = vidioc_g_input, | |
1228 | .vidioc_s_input = vidioc_s_input, | |
1229 | .vidioc_queryctrl = vidioc_queryctrl, | |
1230 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1231 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1232 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1233 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1234 | .vidioc_streamon = vidioc_streamon, | |
1235 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1236 | .vidioc_g_tuner = vidioc_g_tuner, |
1237 | .vidioc_s_tuner = vidioc_s_tuner, | |
1238 | .vidioc_g_frequency = vidioc_g_frequency, | |
1239 | .vidioc_s_frequency = vidioc_s_frequency, | |
1240 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1241 | .vidioc_g_register = vidioc_g_register, | |
1242 | .vidioc_s_register = vidioc_s_register, | |
1243 | #endif | |
a399810c HV |
1244 | }; |
1245 | ||
1246 | static struct video_device usbvision_video_template = { | |
a399810c | 1247 | .fops = &usbvision_fops, |
6d6a48e5 | 1248 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c HV |
1249 | .name = "usbvision-video", |
1250 | .release = video_device_release, | |
6d6a48e5 HV |
1251 | .tvnorms = USBVISION_NORMS, |
1252 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1253 | }; |
1254 | ||
1255 | ||
52cb0bf2 | 1256 | /* Radio template */ |
bec43661 | 1257 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1258 | .owner = THIS_MODULE, |
483dfdb6 TM |
1259 | .open = usbvision_radio_open, |
1260 | .release = usbvision_radio_close, | |
c627b9d1 | 1261 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1262 | }; |
1263 | ||
a399810c | 1264 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 TM |
1265 | .vidioc_querycap = vidioc_querycap, |
1266 | .vidioc_enum_input = vidioc_enum_input, | |
1267 | .vidioc_g_input = vidioc_g_input, | |
1268 | .vidioc_s_input = vidioc_s_input, | |
1269 | .vidioc_queryctrl = vidioc_queryctrl, | |
1270 | .vidioc_g_audio = vidioc_g_audio, | |
ed4d6375 | 1271 | .vidioc_s_audio = vidioc_s_audio, |
c5f48367 TM |
1272 | .vidioc_g_ctrl = vidioc_g_ctrl, |
1273 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1274 | .vidioc_g_tuner = vidioc_g_tuner, | |
1275 | .vidioc_s_tuner = vidioc_s_tuner, | |
1276 | .vidioc_g_frequency = vidioc_g_frequency, | |
1277 | .vidioc_s_frequency = vidioc_s_frequency, | |
a399810c HV |
1278 | }; |
1279 | ||
1280 | static struct video_device usbvision_radio_template = { | |
a399810c | 1281 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1282 | .name = "usbvision-radio", |
a399810c | 1283 | .release = video_device_release, |
6d6a48e5 | 1284 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
c5f48367 TM |
1285 | |
1286 | .tvnorms = USBVISION_NORMS, | |
1287 | .current_norm = V4L2_STD_PAL | |
483dfdb6 TM |
1288 | }; |
1289 | ||
483dfdb6 TM |
1290 | |
1291 | static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, | |
1292 | struct video_device *vdev_template, | |
1293 | char *name) | |
1294 | { | |
1295 | struct usb_device *usb_dev = usbvision->dev; | |
1296 | struct video_device *vdev; | |
1297 | ||
1298 | if (usb_dev == NULL) { | |
be9ed511 MCC |
1299 | dev_err(&usbvision->dev->dev, |
1300 | "%s: usbvision->dev is not set\n", __func__); | |
483dfdb6 TM |
1301 | return NULL; |
1302 | } | |
1303 | ||
1304 | vdev = video_device_alloc(); | |
6d6a48e5 | 1305 | if (NULL == vdev) |
483dfdb6 | 1306 | return NULL; |
483dfdb6 | 1307 | *vdev = *vdev_template; |
c627b9d1 | 1308 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1309 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1310 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1311 | video_set_drvdata(vdev, usbvision); | |
1312 | return vdev; | |
1313 | } | |
1314 | ||
52cb0bf2 | 1315 | /* unregister video4linux devices */ |
483dfdb6 TM |
1316 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1317 | { | |
52cb0bf2 | 1318 | /* Radio Device: */ |
483dfdb6 | 1319 | if (usbvision->rdev) { |
38c7c036 LP |
1320 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1321 | video_device_node_name(usbvision->rdev)); | |
6d6a48e5 | 1322 | if (video_is_registered(usbvision->rdev)) |
483dfdb6 | 1323 | video_unregister_device(usbvision->rdev); |
6d6a48e5 | 1324 | else |
483dfdb6 | 1325 | video_device_release(usbvision->rdev); |
483dfdb6 TM |
1326 | usbvision->rdev = NULL; |
1327 | } | |
1328 | ||
52cb0bf2 | 1329 | /* Video Device: */ |
483dfdb6 | 1330 | if (usbvision->vdev) { |
38c7c036 LP |
1331 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
1332 | video_device_node_name(usbvision->vdev)); | |
6d6a48e5 | 1333 | if (video_is_registered(usbvision->vdev)) |
483dfdb6 | 1334 | video_unregister_device(usbvision->vdev); |
6d6a48e5 | 1335 | else |
483dfdb6 | 1336 | video_device_release(usbvision->vdev); |
483dfdb6 TM |
1337 | usbvision->vdev = NULL; |
1338 | } | |
1339 | } | |
1340 | ||
52cb0bf2 | 1341 | /* register video4linux devices */ |
483dfdb6 TM |
1342 | static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) |
1343 | { | |
52cb0bf2 | 1344 | /* Video Device: */ |
c5f48367 TM |
1345 | usbvision->vdev = usbvision_vdev_init(usbvision, |
1346 | &usbvision_video_template, | |
1347 | "USBVision Video"); | |
6d6a48e5 | 1348 | if (usbvision->vdev == NULL) |
483dfdb6 | 1349 | goto err_exit; |
6d6a48e5 | 1350 | if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1351 | goto err_exit; |
38c7c036 LP |
1352 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
1353 | usbvision->nr, video_device_node_name(usbvision->vdev)); | |
483dfdb6 | 1354 | |
52cb0bf2 | 1355 | /* Radio Device: */ |
5490a7cb | 1356 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1357 | /* usbvision has radio */ |
c5f48367 TM |
1358 | usbvision->rdev = usbvision_vdev_init(usbvision, |
1359 | &usbvision_radio_template, | |
1360 | "USBVision Radio"); | |
6d6a48e5 | 1361 | if (usbvision->rdev == NULL) |
483dfdb6 | 1362 | goto err_exit; |
6d6a48e5 | 1363 | if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) |
483dfdb6 | 1364 | goto err_exit; |
38c7c036 LP |
1365 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
1366 | usbvision->nr, video_device_node_name(usbvision->rdev)); | |
483dfdb6 | 1367 | } |
52cb0bf2 | 1368 | /* all done */ |
483dfdb6 TM |
1369 | return 0; |
1370 | ||
1371 | err_exit: | |
be9ed511 MCC |
1372 | dev_err(&usbvision->dev->dev, |
1373 | "USBVision[%d]: video_register_device() failed\n", | |
1374 | usbvision->nr); | |
483dfdb6 TM |
1375 | usbvision_unregister_video(usbvision); |
1376 | return -1; | |
1377 | } | |
1378 | ||
1379 | /* | |
1380 | * usbvision_alloc() | |
1381 | * | |
c5f48367 TM |
1382 | * This code allocates the struct usb_usbvision. |
1383 | * It is filled with default values. | |
483dfdb6 TM |
1384 | * |
1385 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1386 | * | |
1387 | */ | |
a878440d JG |
1388 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1389 | struct usb_interface *intf) | |
483dfdb6 TM |
1390 | { |
1391 | struct usb_usbvision *usbvision; | |
1392 | ||
1df79537 HV |
1393 | usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); |
1394 | if (usbvision == NULL) | |
1395 | return NULL; | |
483dfdb6 TM |
1396 | |
1397 | usbvision->dev = dev; | |
a878440d | 1398 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1399 | goto err_free; |
483dfdb6 | 1400 | |
c627b9d1 | 1401 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1402 | |
52cb0bf2 | 1403 | /* prepare control urb for control messages during interrupts */ |
5490a7cb HV |
1404 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
1405 | if (usbvision->ctrl_urb == NULL) | |
1df79537 | 1406 | goto err_unreg; |
5490a7cb | 1407 | init_waitqueue_head(&usbvision->ctrl_urb_wq); |
483dfdb6 | 1408 | |
5490a7cb | 1409 | usbvision_init_power_off_timer(usbvision); |
483dfdb6 TM |
1410 | |
1411 | return usbvision; | |
1412 | ||
1df79537 HV |
1413 | err_unreg: |
1414 | v4l2_device_unregister(&usbvision->v4l2_dev); | |
1415 | err_free: | |
1416 | kfree(usbvision); | |
483dfdb6 TM |
1417 | return NULL; |
1418 | } | |
1419 | ||
1420 | /* | |
1421 | * usbvision_release() | |
1422 | * | |
1423 | * This code does final release of struct usb_usbvision. This happens | |
1424 | * after the device is disconnected -and- all clients closed their files. | |
1425 | * | |
1426 | */ | |
1427 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1428 | { | |
1429 | PDEBUG(DBG_PROBE, ""); | |
1430 | ||
5490a7cb | 1431 | usbvision_reset_power_off_timer(usbvision); |
483dfdb6 TM |
1432 | |
1433 | usbvision->initialized = 0; | |
1434 | ||
483dfdb6 TM |
1435 | usbvision_remove_sysfs(usbvision->vdev); |
1436 | usbvision_unregister_video(usbvision); | |
1437 | ||
6d6a48e5 | 1438 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1439 | |
1df79537 | 1440 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1441 | kfree(usbvision); |
1442 | ||
1443 | PDEBUG(DBG_PROBE, "success"); | |
1444 | } | |
1445 | ||
1446 | ||
c5f48367 | 1447 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1448 | |
1449 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1450 | { | |
c5f48367 | 1451 | int model; |
483dfdb6 TM |
1452 | |
1453 | if (usbvision == NULL) | |
1454 | return; | |
1455 | ||
5490a7cb | 1456 | model = usbvision->dev_model; |
52cb0bf2 | 1457 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1458 | |
5490a7cb HV |
1459 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1460 | usbvision->vin_reg2_preset = | |
1461 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1462 | } else { |
5490a7cb | 1463 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1464 | } |
1465 | ||
5490a7cb | 1466 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
483dfdb6 | 1467 | |
5490a7cb | 1468 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 TM |
1469 | usbvision->ctl_input = 0; |
1470 | ||
1471 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 TM |
1472 | /* first switch off audio */ |
1473 | usbvision_audio_off(usbvision); | |
5490a7cb | 1474 | if (!power_on_at_open) { |
c5f48367 TM |
1475 | /* and then power up the noisy tuner */ |
1476 | usbvision_power_on(usbvision); | |
1ff16c20 | 1477 | usbvision_i2c_register(usbvision); |
483dfdb6 TM |
1478 | } |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * usbvision_probe() | |
1483 | * | |
1484 | * This procedure queries device descriptor and accepts the interface | |
1485 | * if it looks like USBVISION video device | |
1486 | * | |
1487 | */ | |
659ae56d MCC |
1488 | static int __devinit usbvision_probe(struct usb_interface *intf, |
1489 | const struct usb_device_id *devid) | |
483dfdb6 | 1490 | { |
2a9f8b5d TM |
1491 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1492 | struct usb_interface *uif; | |
483dfdb6 TM |
1493 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1494 | const struct usb_host_interface *interface; | |
1495 | struct usb_usbvision *usbvision = NULL; | |
1496 | const struct usb_endpoint_descriptor *endpoint; | |
6d6a48e5 | 1497 | int model, i; |
483dfdb6 TM |
1498 | |
1499 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
659ae56d MCC |
1500 | dev->descriptor.idVendor, |
1501 | dev->descriptor.idProduct, ifnum); | |
2a9f8b5d | 1502 | |
659ae56d | 1503 | model = devid->driver_info; |
6d6a48e5 HV |
1504 | if (model < 0 || model >= usbvision_device_data_size) { |
1505 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
f8a389db MCC |
1506 | return -ENODEV; |
1507 | } | |
d2db42dd | 1508 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1509 | usbvision_device_data[model].model_string); |
483dfdb6 | 1510 | |
6d6a48e5 | 1511 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1512 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
6d6a48e5 | 1513 | else |
483dfdb6 | 1514 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
483dfdb6 | 1515 | endpoint = &interface->endpoint[1].desc; |
2230c3c8 | 1516 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1517 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1518 | __func__, ifnum); |
be9ed511 | 1519 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1520 | __func__, endpoint->bmAttributes); |
483dfdb6 TM |
1521 | return -ENODEV; |
1522 | } | |
13417982 | 1523 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1524 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1525 | __func__, ifnum); |
483dfdb6 TM |
1526 | return -ENODEV; |
1527 | } | |
1528 | ||
a878440d JG |
1529 | usbvision = usbvision_alloc(dev, intf); |
1530 | if (usbvision == NULL) { | |
be9ed511 | 1531 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
483dfdb6 TM |
1532 | return -ENOMEM; |
1533 | } | |
659ae56d | 1534 | |
6d6a48e5 | 1535 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1536 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1537 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1538 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1539 | else |
5490a7cb | 1540 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1541 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1542 | |
2a9f8b5d TM |
1543 | /* compute alternate max packet sizes */ |
1544 | uif = dev->actconfig->interface[0]; | |
1545 | ||
6d6a48e5 HV |
1546 | usbvision->num_alt = uif->num_altsetting; |
1547 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
1548 | usbvision->alt_max_pkt_size = kmalloc(32 * usbvision->num_alt, GFP_KERNEL); | |
2a9f8b5d | 1549 | if (usbvision->alt_max_pkt_size == NULL) { |
be9ed511 | 1550 | dev_err(&intf->dev, "usbvision: out of memory!\n"); |
2a9f8b5d TM |
1551 | return -ENOMEM; |
1552 | } | |
1553 | ||
6d6a48e5 | 1554 | for (i = 0; i < usbvision->num_alt; i++) { |
2a9f8b5d TM |
1555 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. |
1556 | wMaxPacketSize); | |
1557 | usbvision->alt_max_pkt_size[i] = | |
1558 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6d6a48e5 | 1559 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, |
2a9f8b5d TM |
1560 | usbvision->alt_max_pkt_size[i]); |
1561 | } | |
1562 | ||
1563 | ||
483dfdb6 TM |
1564 | usbvision->nr = usbvision_nr++; |
1565 | ||
5490a7cb | 1566 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
6d6a48e5 | 1567 | if (usbvision->have_tuner) |
5490a7cb | 1568 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 | 1569 | |
5490a7cb | 1570 | usbvision->dev_model = model; |
483dfdb6 TM |
1571 | usbvision->remove_pending = 0; |
1572 | usbvision->iface = ifnum; | |
5490a7cb | 1573 | usbvision->iface_alt = 0; |
483dfdb6 | 1574 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1575 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1576 | usbvision->usb_bandwidth = 0; |
1577 | usbvision->user = 0; | |
5490a7cb | 1578 | usbvision->streaming = stream_off; |
483dfdb6 | 1579 | usbvision_configure_video(usbvision); |
8403472f | 1580 | usbvision_register_video(usbvision); |
483dfdb6 | 1581 | |
483dfdb6 TM |
1582 | usbvision_create_sysfs(usbvision->vdev); |
1583 | ||
1584 | PDEBUG(DBG_PROBE, "success"); | |
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | ||
1589 | /* | |
1590 | * usbvision_disconnect() | |
1591 | * | |
1592 | * This procedure stops all driver activity, deallocates interface-private | |
1593 | * structure (pointed by 'ptr') and after that driver should be removable | |
1594 | * with no ill consequences. | |
1595 | * | |
1596 | */ | |
1597 | static void __devexit usbvision_disconnect(struct usb_interface *intf) | |
1598 | { | |
aeb506aa | 1599 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1600 | |
1601 | PDEBUG(DBG_PROBE, ""); | |
1602 | ||
1603 | if (usbvision == NULL) { | |
4202066c | 1604 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1605 | return; |
1606 | } | |
483dfdb6 | 1607 | |
c627b9d1 | 1608 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 | 1609 | |
52cb0bf2 | 1610 | /* At this time we ask to cancel outstanding URBs */ |
483dfdb6 TM |
1611 | usbvision_stop_isoc(usbvision); |
1612 | ||
f1ba28c3 HV |
1613 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
1614 | ||
483dfdb6 | 1615 | if (usbvision->power) { |
1ff16c20 | 1616 | usbvision_i2c_unregister(usbvision); |
483dfdb6 TM |
1617 | usbvision_power_off(usbvision); |
1618 | } | |
52cb0bf2 | 1619 | usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ |
483dfdb6 TM |
1620 | |
1621 | usb_put_dev(usbvision->dev); | |
52cb0bf2 | 1622 | usbvision->dev = NULL; /* USB device is no more */ |
483dfdb6 | 1623 | |
c627b9d1 | 1624 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1625 | |
1626 | if (usbvision->user) { | |
c5f48367 | 1627 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1628 | __func__); |
483dfdb6 TM |
1629 | wake_up_interruptible(&usbvision->wait_frame); |
1630 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1631 | } else { |
483dfdb6 TM |
1632 | usbvision_release(usbvision); |
1633 | } | |
1634 | ||
1635 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1636 | } |
1637 | ||
1638 | static struct usb_driver usbvision_driver = { | |
1639 | .name = "usbvision", | |
1640 | .id_table = usbvision_table, | |
1641 | .probe = usbvision_probe, | |
e36bc31f | 1642 | .disconnect = __devexit_p(usbvision_disconnect), |
483dfdb6 TM |
1643 | }; |
1644 | ||
483dfdb6 TM |
1645 | /* |
1646 | * usbvision_init() | |
1647 | * | |
1648 | * This code is run to initialize the driver. | |
1649 | * | |
1650 | */ | |
1651 | static int __init usbvision_init(void) | |
1652 | { | |
5490a7cb | 1653 | int err_code; |
483dfdb6 TM |
1654 | |
1655 | PDEBUG(DBG_PROBE, ""); | |
1656 | ||
483dfdb6 TM |
1657 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1658 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1659 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1660 | |
1661 | /* disable planar mode support unless compression enabled */ | |
6d6a48e5 | 1662 | if (isoc_mode != ISOC_MODE_COMPRESS) { |
52cb0bf2 HV |
1663 | /* FIXME : not the right way to set supported flag */ |
1664 | usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ | |
1665 | usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ | |
483dfdb6 TM |
1666 | } |
1667 | ||
5490a7cb | 1668 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1669 | |
5490a7cb | 1670 | if (err_code == 0) { |
de6a1b8e | 1671 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1672 | PDEBUG(DBG_PROBE, "success"); |
1673 | } | |
5490a7cb | 1674 | return err_code; |
483dfdb6 TM |
1675 | } |
1676 | ||
1677 | static void __exit usbvision_exit(void) | |
1678 | { | |
6d6a48e5 | 1679 | PDEBUG(DBG_PROBE, ""); |
483dfdb6 | 1680 | |
6d6a48e5 HV |
1681 | usb_deregister(&usbvision_driver); |
1682 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1683 | } |
1684 | ||
1685 | module_init(usbvision_init); | |
1686 | module_exit(usbvision_exit); | |
1687 | ||
1688 | /* | |
1689 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
1690 | * --------------------------------------------------------------------------- | |
1691 | * Local variables: | |
1692 | * c-basic-offset: 8 | |
1693 | * End: | |
1694 | */ |