Commit | Line | Data |
---|---|---|
c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
483dfdb6 | 2 | /* |
3ff4ad81 | 3 | * USB USBVISION Video device driver 0.9.10 |
483dfdb6 | 4 | * |
483dfdb6 TM |
5 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> |
6 | * | |
7 | * This module is part of usbvision driver project. | |
8 | * | |
483dfdb6 TM |
9 | * Let's call the version 0.... until compression decoding is completely |
10 | * implemented. | |
11 | * | |
12 | * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. | |
13 | * It was based on USB CPiA driver written by Peter Pregler, | |
14 | * Scott J. Bertin and Johannes Erdfelt | |
15 | * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & | |
16 | * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink | |
17 | * Updates to driver completed by Dwaine P. Garden | |
18 | * | |
483dfdb6 TM |
19 | * TODO: |
20 | * - use submit_urb for all setup packets | |
21 | * - Fix memory settings for nt1004. It is 4 times as big as the | |
22 | * nt1003 memory. | |
c5f48367 TM |
23 | * - Add audio on endpoint 3 for nt1004 chip. |
24 | * Seems impossible, needs a codec interface. Which one? | |
483dfdb6 TM |
25 | * - Clean up the driver. |
26 | * - optimization for performance. | |
27 | * - Add Videotext capability (VBI). Working on it..... | |
28 | * - Check audio for other devices | |
483dfdb6 TM |
29 | */ |
30 | ||
31 | #include <linux/kernel.h> | |
483dfdb6 TM |
32 | #include <linux/list.h> |
33 | #include <linux/timer.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/mm.h> | |
483dfdb6 | 36 | #include <linux/highmem.h> |
483dfdb6 TM |
37 | #include <linux/vmalloc.h> |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/spinlock.h> | |
6d6a48e5 | 41 | #include <linux/io.h> |
483dfdb6 | 42 | #include <linux/videodev2.h> |
483dfdb6 TM |
43 | #include <linux/i2c.h> |
44 | ||
b5dcee22 | 45 | #include <media/i2c/saa7115.h> |
483dfdb6 | 46 | #include <media/v4l2-common.h> |
35ea11ff | 47 | #include <media/v4l2-ioctl.h> |
fd95870d | 48 | #include <media/v4l2-event.h> |
483dfdb6 | 49 | #include <media/tuner.h> |
483dfdb6 | 50 | |
a1ed551c | 51 | #include <linux/workqueue.h> |
483dfdb6 | 52 | |
483dfdb6 | 53 | #include "usbvision.h" |
659ae56d | 54 | #include "usbvision-cards.h" |
483dfdb6 | 55 | |
85ee7a1d JP |
56 | #define DRIVER_AUTHOR \ |
57 | "Joerg Heckenbach <joerg@heckenbach-aw.de>, " \ | |
58 | "Dwaine Garden <DwaineGarden@rogers.com>" | |
483dfdb6 TM |
59 | #define DRIVER_NAME "usbvision" |
60 | #define DRIVER_ALIAS "USBVision" | |
61 | #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" | |
1990d50b | 62 | #define USBVISION_VERSION_STRING "0.9.11" |
483dfdb6 TM |
63 | |
64 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ | |
65 | ||
66 | ||
483dfdb6 | 67 | #ifdef USBVISION_DEBUG |
df18c319 | 68 | #define PDEBUG(level, fmt, args...) { \ |
c5f48367 | 69 | if (video_debug & (level)) \ |
a482f327 GKH |
70 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
71 | __func__, __LINE__ , ## args); \ | |
df18c319 | 72 | } |
483dfdb6 | 73 | #else |
6d6a48e5 | 74 | #define PDEBUG(level, fmt, args...) do {} while (0) |
483dfdb6 TM |
75 | #endif |
76 | ||
6d6a48e5 HV |
77 | #define DBG_IO (1 << 1) |
78 | #define DBG_PROBE (1 << 2) | |
79 | #define DBG_MMAP (1 << 3) | |
483dfdb6 | 80 | |
52cb0bf2 | 81 | /* String operations */ |
6d6a48e5 HV |
82 | #define rmspace(str) while (*str == ' ') str++; |
83 | #define goto2next(str) while (*str != ' ') str++; while (*str == ' ') str++; | |
483dfdb6 TM |
84 | |
85 | ||
c5f48367 | 86 | /* sequential number of usbvision device */ |
ff699e6b | 87 | static int usbvision_nr; |
483dfdb6 TM |
88 | |
89 | static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { | |
90 | { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, | |
91 | { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, | |
92 | { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, | |
93 | { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, | |
94 | { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, | |
95 | { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, | |
52cb0bf2 | 96 | { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, /* 1.5 ! */ |
483dfdb6 TM |
97 | { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } |
98 | }; | |
99 | ||
c5f48367 | 100 | /* Function prototypes */ |
483dfdb6 TM |
101 | static void usbvision_release(struct usb_usbvision *usbvision); |
102 | ||
c84e6036 | 103 | /* Default initialization of device driver parameters */ |
c5f48367 | 104 | /* Set the default format for ISOC endpoint */ |
5490a7cb | 105 | static int isoc_mode = ISOC_MODE_COMPRESS; |
c5f48367 | 106 | /* Set the default Debug Mode of the device driver */ |
ff699e6b | 107 | static int video_debug; |
c5f48367 TM |
108 | /* Sequential Number of Video Device */ |
109 | static int video_nr = -1; | |
110 | /* Sequential Number of Radio Device */ | |
111 | static int radio_nr = -1; | |
c5f48367 TM |
112 | |
113 | /* Grab parameters for the device driver */ | |
114 | ||
115 | /* Showing parameters under SYSFS */ | |
5490a7cb | 116 | module_param(isoc_mode, int, 0444); |
483dfdb6 | 117 | module_param(video_debug, int, 0444); |
483dfdb6 TM |
118 | module_param(video_nr, int, 0444); |
119 | module_param(radio_nr, int, 0444); | |
483dfdb6 | 120 | |
5490a7cb | 121 | MODULE_PARM_DESC(isoc_mode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); |
483dfdb6 | 122 | MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); |
483dfdb6 TM |
123 | MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); |
124 | MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); | |
483dfdb6 TM |
125 | |
126 | ||
52cb0bf2 | 127 | /* Misc stuff */ |
483dfdb6 TM |
128 | MODULE_AUTHOR(DRIVER_AUTHOR); |
129 | MODULE_DESCRIPTION(DRIVER_DESC); | |
b6277584 | 130 | MODULE_LICENSE("GPL"); |
a1ed551c MCC |
131 | MODULE_VERSION(USBVISION_VERSION_STRING); |
132 | MODULE_ALIAS(DRIVER_ALIAS); | |
483dfdb6 TM |
133 | |
134 | ||
c5f48367 TM |
135 | /*****************************************************************************/ |
136 | /* SYSFS Code - Copied from the stv680.c usb module. */ | |
137 | /* Device information is located at /sys/class/video4linux/video0 */ | |
138 | /* Device parameters information is located at /sys/module/usbvision */ | |
139 | /* Device USB Information is located at */ | |
140 | /* /sys/bus/usb/drivers/USBVision Video Grabber */ | |
141 | /*****************************************************************************/ | |
483dfdb6 | 142 | |
483dfdb6 TM |
143 | #define YES_NO(x) ((x) ? "Yes" : "No") |
144 | ||
54bd5b66 | 145 | static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) |
483dfdb6 | 146 | { |
03c6bdfc | 147 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 TM |
148 | return video_get_drvdata(vdev); |
149 | } | |
150 | ||
54bd5b66 KS |
151 | static ssize_t show_version(struct device *cd, |
152 | struct device_attribute *attr, char *buf) | |
483dfdb6 TM |
153 | { |
154 | return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); | |
155 | } | |
54bd5b66 | 156 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); |
483dfdb6 | 157 | |
54bd5b66 KS |
158 | static ssize_t show_model(struct device *cd, |
159 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 160 | { |
03c6bdfc | 161 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 162 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 163 | return sprintf(buf, "%s\n", |
5490a7cb | 164 | usbvision_device_data[usbvision->dev_model].model_string); |
483dfdb6 | 165 | } |
54bd5b66 | 166 | static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
483dfdb6 | 167 | |
54bd5b66 KS |
168 | static ssize_t show_hue(struct device *cd, |
169 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 170 | { |
03c6bdfc | 171 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 172 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
173 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
174 | V4L2_CID_HUE)); | |
175 | ||
176 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 177 | } |
54bd5b66 | 178 | static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
483dfdb6 | 179 | |
54bd5b66 KS |
180 | static ssize_t show_contrast(struct device *cd, |
181 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 182 | { |
03c6bdfc | 183 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 184 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
185 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
186 | V4L2_CID_CONTRAST)); | |
187 | ||
188 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 189 | } |
54bd5b66 | 190 | static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
483dfdb6 | 191 | |
54bd5b66 KS |
192 | static ssize_t show_brightness(struct device *cd, |
193 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 194 | { |
03c6bdfc | 195 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 196 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
197 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
198 | V4L2_CID_BRIGHTNESS)); | |
199 | ||
200 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 201 | } |
54bd5b66 | 202 | static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
483dfdb6 | 203 | |
54bd5b66 KS |
204 | static ssize_t show_saturation(struct device *cd, |
205 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 206 | { |
03c6bdfc | 207 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 208 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
25bba368 HV |
209 | s32 val = v4l2_ctrl_g_ctrl(v4l2_ctrl_find(&usbvision->hdl, |
210 | V4L2_CID_SATURATION)); | |
211 | ||
212 | return sprintf(buf, "%d\n", val); | |
483dfdb6 | 213 | } |
54bd5b66 | 214 | static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
483dfdb6 | 215 | |
54bd5b66 KS |
216 | static ssize_t show_streaming(struct device *cd, |
217 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 218 | { |
03c6bdfc | 219 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 220 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 221 | return sprintf(buf, "%s\n", |
6d6a48e5 | 222 | YES_NO(usbvision->streaming == stream_on ? 1 : 0)); |
483dfdb6 | 223 | } |
54bd5b66 | 224 | static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); |
483dfdb6 | 225 | |
54bd5b66 KS |
226 | static ssize_t show_compression(struct device *cd, |
227 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 228 | { |
03c6bdfc | 229 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 230 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
c5f48367 | 231 | return sprintf(buf, "%s\n", |
6d6a48e5 | 232 | YES_NO(usbvision->isoc_mode == ISOC_MODE_COMPRESS)); |
483dfdb6 | 233 | } |
54bd5b66 | 234 | static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); |
483dfdb6 | 235 | |
54bd5b66 KS |
236 | static ssize_t show_device_bridge(struct device *cd, |
237 | struct device_attribute *attr, char *buf) | |
483dfdb6 | 238 | { |
03c6bdfc | 239 | struct video_device *vdev = to_video_device(cd); |
483dfdb6 | 240 | struct usb_usbvision *usbvision = video_get_drvdata(vdev); |
5490a7cb | 241 | return sprintf(buf, "%d\n", usbvision->bridge_type); |
483dfdb6 | 242 | } |
54bd5b66 | 243 | static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); |
483dfdb6 TM |
244 | |
245 | static void usbvision_create_sysfs(struct video_device *vdev) | |
246 | { | |
247 | int res; | |
6d6a48e5 | 248 | |
ed00b41d DG |
249 | if (!vdev) |
250 | return; | |
251 | do { | |
22a04f10 | 252 | res = device_create_file(&vdev->dev, &dev_attr_version); |
6d6a48e5 | 253 | if (res < 0) |
ed00b41d | 254 | break; |
22a04f10 | 255 | res = device_create_file(&vdev->dev, &dev_attr_model); |
6d6a48e5 | 256 | if (res < 0) |
ed00b41d | 257 | break; |
22a04f10 | 258 | res = device_create_file(&vdev->dev, &dev_attr_hue); |
6d6a48e5 | 259 | if (res < 0) |
ed00b41d | 260 | break; |
22a04f10 | 261 | res = device_create_file(&vdev->dev, &dev_attr_contrast); |
6d6a48e5 | 262 | if (res < 0) |
ed00b41d | 263 | break; |
22a04f10 | 264 | res = device_create_file(&vdev->dev, &dev_attr_brightness); |
6d6a48e5 | 265 | if (res < 0) |
ed00b41d | 266 | break; |
22a04f10 | 267 | res = device_create_file(&vdev->dev, &dev_attr_saturation); |
6d6a48e5 | 268 | if (res < 0) |
ed00b41d | 269 | break; |
22a04f10 | 270 | res = device_create_file(&vdev->dev, &dev_attr_streaming); |
6d6a48e5 | 271 | if (res < 0) |
ed00b41d | 272 | break; |
22a04f10 | 273 | res = device_create_file(&vdev->dev, &dev_attr_compression); |
6d6a48e5 | 274 | if (res < 0) |
ed00b41d | 275 | break; |
22a04f10 | 276 | res = device_create_file(&vdev->dev, &dev_attr_bridge); |
6d6a48e5 | 277 | if (res >= 0) |
ed00b41d DG |
278 | return; |
279 | } while (0); | |
280 | ||
be9ed511 | 281 | dev_err(&vdev->dev, "%s error: %d\n", __func__, res); |
483dfdb6 TM |
282 | } |
283 | ||
284 | static void usbvision_remove_sysfs(struct video_device *vdev) | |
285 | { | |
286 | if (vdev) { | |
22a04f10 HV |
287 | device_remove_file(&vdev->dev, &dev_attr_version); |
288 | device_remove_file(&vdev->dev, &dev_attr_model); | |
289 | device_remove_file(&vdev->dev, &dev_attr_hue); | |
290 | device_remove_file(&vdev->dev, &dev_attr_contrast); | |
291 | device_remove_file(&vdev->dev, &dev_attr_brightness); | |
292 | device_remove_file(&vdev->dev, &dev_attr_saturation); | |
293 | device_remove_file(&vdev->dev, &dev_attr_streaming); | |
294 | device_remove_file(&vdev->dev, &dev_attr_compression); | |
295 | device_remove_file(&vdev->dev, &dev_attr_bridge); | |
483dfdb6 TM |
296 | } |
297 | } | |
298 | ||
483dfdb6 TM |
299 | /* |
300 | * usbvision_open() | |
301 | * | |
302 | * This is part of Video 4 Linux API. The driver can be opened by one | |
303 | * client only (checks internal counter 'usbvision->user'). The procedure | |
304 | * then allocates buffers needed for video processing. | |
305 | * | |
306 | */ | |
bec43661 | 307 | static int usbvision_v4l2_open(struct file *file) |
483dfdb6 | 308 | { |
c170ecf4 | 309 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 310 | int err_code = 0; |
483dfdb6 TM |
311 | |
312 | PDEBUG(DBG_IO, "open"); | |
313 | ||
4d345708 HV |
314 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
315 | return -ERESTARTSYS; | |
483dfdb6 | 316 | |
62e25949 | 317 | if (usbvision->user) { |
5490a7cb | 318 | err_code = -EBUSY; |
62e25949 | 319 | } else { |
fd95870d HV |
320 | err_code = v4l2_fh_open(file); |
321 | if (err_code) | |
322 | goto unlock; | |
323 | ||
6f78e186 | 324 | /* Allocate memory for the scratch ring buffer */ |
5490a7cb | 325 | err_code = usbvision_scratch_alloc(usbvision); |
6d6a48e5 | 326 | if (isoc_mode == ISOC_MODE_COMPRESS) { |
c5f48367 TM |
327 | /* Allocate intermediate decompression buffers |
328 | only if needed */ | |
5490a7cb | 329 | err_code = usbvision_decompress_alloc(usbvision); |
483dfdb6 | 330 | } |
5490a7cb | 331 | if (err_code) { |
483dfdb6 | 332 | /* Deallocate all buffers if trouble */ |
483dfdb6 | 333 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
334 | usbvision_decompress_free(usbvision); |
335 | } | |
336 | } | |
337 | ||
338 | /* If so far no errors then we shall start the camera */ | |
5490a7cb | 339 | if (!err_code) { |
483dfdb6 TM |
340 | /* Send init sequence only once, it's large! */ |
341 | if (!usbvision->initialized) { | |
342 | int setup_ok = 0; | |
6d6a48e5 | 343 | setup_ok = usbvision_setup(usbvision, isoc_mode); |
483dfdb6 TM |
344 | if (setup_ok) |
345 | usbvision->initialized = 1; | |
346 | else | |
5490a7cb | 347 | err_code = -EBUSY; |
483dfdb6 TM |
348 | } |
349 | ||
5490a7cb | 350 | if (!err_code) { |
483dfdb6 | 351 | usbvision_begin_streaming(usbvision); |
5490a7cb | 352 | err_code = usbvision_init_isoc(usbvision); |
c5f48367 | 353 | /* device must be initialized before isoc transfer */ |
6d6a48e5 | 354 | usbvision_muxsel(usbvision, 0); |
62e25949 HV |
355 | |
356 | /* prepare queues */ | |
357 | usbvision_empty_framequeues(usbvision); | |
483dfdb6 | 358 | usbvision->user++; |
483dfdb6 | 359 | } |
483dfdb6 TM |
360 | } |
361 | ||
fd95870d | 362 | unlock: |
4d345708 | 363 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
364 | |
365 | PDEBUG(DBG_IO, "success"); | |
5490a7cb | 366 | return err_code; |
483dfdb6 TM |
367 | } |
368 | ||
369 | /* | |
370 | * usbvision_v4l2_close() | |
371 | * | |
372 | * This is part of Video 4 Linux API. The procedure | |
373 | * stops streaming and deallocates all buffers that were earlier | |
374 | * allocated in usbvision_v4l2_open(). | |
375 | * | |
376 | */ | |
bec43661 | 377 | static int usbvision_v4l2_close(struct file *file) |
483dfdb6 | 378 | { |
c170ecf4 | 379 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
380 | |
381 | PDEBUG(DBG_IO, "close"); | |
483dfdb6 | 382 | |
4d345708 | 383 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 TM |
384 | usbvision_audio_off(usbvision); |
385 | usbvision_restart_isoc(usbvision); | |
386 | usbvision_stop_isoc(usbvision); | |
387 | ||
388 | usbvision_decompress_free(usbvision); | |
38284ba3 | 389 | usbvision_frames_free(usbvision); |
6f78e186 | 390 | usbvision_empty_framequeues(usbvision); |
483dfdb6 | 391 | usbvision_scratch_free(usbvision); |
483dfdb6 TM |
392 | |
393 | usbvision->user--; | |
e2c84ccb | 394 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 395 | |
483dfdb6 | 396 | if (usbvision->remove_pending) { |
d2db42dd | 397 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
483dfdb6 | 398 | usbvision_release(usbvision); |
470a9147 | 399 | return 0; |
483dfdb6 TM |
400 | } |
401 | ||
402 | PDEBUG(DBG_IO, "success"); | |
fd95870d | 403 | return v4l2_fh_release(file); |
483dfdb6 TM |
404 | } |
405 | ||
406 | ||
407 | /* | |
408 | * usbvision_ioctl() | |
409 | * | |
410 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
411 | * | |
412 | */ | |
c5f48367 | 413 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
6d6a48e5 | 414 | static int vidioc_g_register(struct file *file, void *priv, |
aecde8b5 | 415 | struct v4l2_dbg_register *reg) |
483dfdb6 | 416 | { |
c170ecf4 | 417 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 418 | int err_code; |
483dfdb6 | 419 | |
c5f48367 | 420 | /* NT100x has a 8-bit register space */ |
5490a7cb HV |
421 | err_code = usbvision_read_reg(usbvision, reg->reg&0xff); |
422 | if (err_code < 0) { | |
2aa689dd | 423 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 424 | "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", |
5490a7cb HV |
425 | __func__, err_code); |
426 | return err_code; | |
c5f48367 | 427 | } |
5490a7cb | 428 | reg->val = err_code; |
aecde8b5 | 429 | reg->size = 1; |
c5f48367 TM |
430 | return 0; |
431 | } | |
483dfdb6 | 432 | |
6d6a48e5 | 433 | static int vidioc_s_register(struct file *file, void *priv, |
977ba3b1 | 434 | const struct v4l2_dbg_register *reg) |
c5f48367 | 435 | { |
c170ecf4 | 436 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 437 | int err_code; |
62d50add | 438 | |
c5f48367 | 439 | /* NT100x has a 8-bit register space */ |
6d6a48e5 | 440 | err_code = usbvision_write_reg(usbvision, reg->reg & 0xff, reg->val); |
5490a7cb | 441 | if (err_code < 0) { |
2aa689dd | 442 | dev_err(&usbvision->vdev.dev, |
be9ed511 | 443 | "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", |
5490a7cb HV |
444 | __func__, err_code); |
445 | return err_code; | |
c5f48367 TM |
446 | } |
447 | return 0; | |
448 | } | |
483dfdb6 | 449 | #endif |
c5f48367 | 450 | |
6d6a48e5 | 451 | static int vidioc_querycap(struct file *file, void *priv, |
c5f48367 TM |
452 | struct v4l2_capability *vc) |
453 | { | |
c170ecf4 | 454 | struct usb_usbvision *usbvision = video_drvdata(file); |
cbe12cc6 | 455 | struct video_device *vdev = video_devdata(file); |
c5f48367 | 456 | |
c0decac1 MCC |
457 | strscpy(vc->driver, "USBVision", sizeof(vc->driver)); |
458 | strscpy(vc->card, | |
5490a7cb | 459 | usbvision_device_data[usbvision->dev_model].model_string, |
c5f48367 | 460 | sizeof(vc->card)); |
6f2a2781 | 461 | usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); |
cbe12cc6 HV |
462 | vc->device_caps = usbvision->have_tuner ? V4L2_CAP_TUNER : 0; |
463 | if (vdev->vfl_type == VFL_TYPE_GRABBER) | |
464 | vc->device_caps |= V4L2_CAP_VIDEO_CAPTURE | | |
465 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
466 | else | |
467 | vc->device_caps |= V4L2_CAP_RADIO; | |
468 | ||
469 | vc->capabilities = vc->device_caps | V4L2_CAP_VIDEO_CAPTURE | | |
470 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; | |
471 | if (usbvision_device_data[usbvision->dev_model].radio) | |
472 | vc->capabilities |= V4L2_CAP_RADIO; | |
c5f48367 TM |
473 | return 0; |
474 | } | |
475 | ||
6d6a48e5 | 476 | static int vidioc_enum_input(struct file *file, void *priv, |
c5f48367 TM |
477 | struct v4l2_input *vi) |
478 | { | |
c170ecf4 | 479 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
480 | int chan; |
481 | ||
223ffe5f | 482 | if (vi->index >= usbvision->video_inputs) |
c5f48367 | 483 | return -EINVAL; |
6d6a48e5 | 484 | if (usbvision->have_tuner) |
c5f48367 | 485 | chan = vi->index; |
6d6a48e5 | 486 | else |
52cb0bf2 | 487 | chan = vi->index + 1; /* skip Television string*/ |
6d6a48e5 | 488 | |
c5f48367 TM |
489 | /* Determine the requested input characteristics |
490 | specific for each usbvision card model */ | |
6d6a48e5 | 491 | switch (chan) { |
c5f48367 | 492 | case 0: |
5490a7cb | 493 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) { |
cc1e6315 | 494 | strscpy(vi->name, "White Video Input", sizeof(vi->name)); |
c5f48367 | 495 | } else { |
cc1e6315 | 496 | strscpy(vi->name, "Television", sizeof(vi->name)); |
c5f48367 | 497 | vi->type = V4L2_INPUT_TYPE_TUNER; |
c5f48367 TM |
498 | vi->tuner = chan; |
499 | vi->std = USBVISION_NORMS; | |
483dfdb6 | 500 | } |
c5f48367 TM |
501 | break; |
502 | case 1: | |
503 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 504 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
cc1e6315 | 505 | strscpy(vi->name, "Green Video Input", sizeof(vi->name)); |
6d6a48e5 | 506 | else |
cc1e6315 MCC |
507 | strscpy(vi->name, "Composite Video Input", |
508 | sizeof(vi->name)); | |
94384014 | 509 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
510 | break; |
511 | case 2: | |
512 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
6d6a48e5 | 513 | if (usbvision_device_data[usbvision->dev_model].video_channels == 4) |
cc1e6315 | 514 | strscpy(vi->name, "Yellow Video Input", sizeof(vi->name)); |
6d6a48e5 | 515 | else |
cc1e6315 | 516 | strscpy(vi->name, "S-Video Input", sizeof(vi->name)); |
94384014 | 517 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
518 | break; |
519 | case 3: | |
520 | vi->type = V4L2_INPUT_TYPE_CAMERA; | |
cc1e6315 | 521 | strscpy(vi->name, "Red Video Input", sizeof(vi->name)); |
94384014 | 522 | vi->std = USBVISION_NORMS; |
c5f48367 TM |
523 | break; |
524 | } | |
525 | return 0; | |
526 | } | |
483dfdb6 | 527 | |
6d6a48e5 | 528 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *input) |
c5f48367 | 529 | { |
c170ecf4 | 530 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 531 | |
c5f48367 TM |
532 | *input = usbvision->ctl_input; |
533 | return 0; | |
534 | } | |
483dfdb6 | 535 | |
6d6a48e5 | 536 | static int vidioc_s_input(struct file *file, void *priv, unsigned int input) |
c5f48367 | 537 | { |
c170ecf4 | 538 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 539 | |
f14a2972 | 540 | if (input >= usbvision->video_inputs) |
c5f48367 | 541 | return -EINVAL; |
483dfdb6 | 542 | |
66a17879 | 543 | usbvision_muxsel(usbvision, input); |
c5f48367 TM |
544 | usbvision_set_input(usbvision); |
545 | usbvision_set_output(usbvision, | |
546 | usbvision->curwidth, | |
547 | usbvision->curheight); | |
c5f48367 TM |
548 | return 0; |
549 | } | |
483dfdb6 | 550 | |
314527ac | 551 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) |
c5f48367 | 552 | { |
c170ecf4 HV |
553 | struct usb_usbvision *usbvision = video_drvdata(file); |
554 | ||
314527ac | 555 | usbvision->tvnorm_id = id; |
483dfdb6 | 556 | |
8774bed9 | 557 | call_all(usbvision, video, s_std, usbvision->tvnorm_id); |
66a17879 TM |
558 | /* propagate the change to the decoder */ |
559 | usbvision_muxsel(usbvision, usbvision->ctl_input); | |
483dfdb6 | 560 | |
c5f48367 TM |
561 | return 0; |
562 | } | |
483dfdb6 | 563 | |
3b8436d9 HV |
564 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) |
565 | { | |
566 | struct usb_usbvision *usbvision = video_drvdata(file); | |
567 | ||
568 | *id = usbvision->tvnorm_id; | |
569 | return 0; | |
570 | } | |
571 | ||
6d6a48e5 | 572 | static int vidioc_g_tuner(struct file *file, void *priv, |
c5f48367 TM |
573 | struct v4l2_tuner *vt) |
574 | { | |
c170ecf4 | 575 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 576 | |
64d416ec | 577 | if (vt->index) /* Only tuner 0 */ |
c5f48367 | 578 | return -EINVAL; |
64d416ec | 579 | if (vt->type == V4L2_TUNER_RADIO) |
cc1e6315 | 580 | strscpy(vt->name, "Radio", sizeof(vt->name)); |
64d416ec | 581 | else |
cc1e6315 | 582 | strscpy(vt->name, "Television", sizeof(vt->name)); |
64d416ec | 583 | |
c5f48367 | 584 | /* Let clients fill in the remainder of this struct */ |
1df79537 | 585 | call_all(usbvision, tuner, g_tuner, vt); |
483dfdb6 | 586 | |
c5f48367 TM |
587 | return 0; |
588 | } | |
483dfdb6 | 589 | |
6d6a48e5 | 590 | static int vidioc_s_tuner(struct file *file, void *priv, |
2f73c7c5 | 591 | const struct v4l2_tuner *vt) |
c5f48367 | 592 | { |
c170ecf4 | 593 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 594 | |
64d416ec HV |
595 | /* Only one tuner for now */ |
596 | if (vt->index) | |
c5f48367 TM |
597 | return -EINVAL; |
598 | /* let clients handle this */ | |
1df79537 | 599 | call_all(usbvision, tuner, s_tuner, vt); |
483dfdb6 | 600 | |
c5f48367 TM |
601 | return 0; |
602 | } | |
483dfdb6 | 603 | |
6d6a48e5 | 604 | static int vidioc_g_frequency(struct file *file, void *priv, |
c5f48367 TM |
605 | struct v4l2_frequency *freq) |
606 | { | |
c170ecf4 | 607 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 608 | |
64d416ec HV |
609 | /* Only one tuner */ |
610 | if (freq->tuner) | |
611 | return -EINVAL; | |
612 | if (freq->type == V4L2_TUNER_RADIO) | |
613 | freq->frequency = usbvision->radio_freq; | |
6d6a48e5 | 614 | else |
64d416ec | 615 | freq->frequency = usbvision->tv_freq; |
483dfdb6 | 616 | |
c5f48367 TM |
617 | return 0; |
618 | } | |
483dfdb6 | 619 | |
6d6a48e5 | 620 | static int vidioc_s_frequency(struct file *file, void *priv, |
b530a447 | 621 | const struct v4l2_frequency *freq) |
c5f48367 | 622 | { |
c170ecf4 | 623 | struct usb_usbvision *usbvision = video_drvdata(file); |
64d416ec | 624 | struct v4l2_frequency new_freq = *freq; |
483dfdb6 | 625 | |
64d416ec HV |
626 | /* Only one tuner for now */ |
627 | if (freq->tuner) | |
c5f48367 | 628 | return -EINVAL; |
483dfdb6 | 629 | |
1df79537 | 630 | call_all(usbvision, tuner, s_frequency, freq); |
64d416ec HV |
631 | call_all(usbvision, tuner, g_frequency, &new_freq); |
632 | if (freq->type == V4L2_TUNER_RADIO) | |
633 | usbvision->radio_freq = new_freq.frequency; | |
634 | else | |
635 | usbvision->tv_freq = new_freq.frequency; | |
483dfdb6 | 636 | |
c5f48367 TM |
637 | return 0; |
638 | } | |
483dfdb6 | 639 | |
6d6a48e5 | 640 | static int vidioc_reqbufs(struct file *file, |
c5f48367 TM |
641 | void *priv, struct v4l2_requestbuffers *vr) |
642 | { | |
c170ecf4 | 643 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
644 | int ret; |
645 | ||
6d6a48e5 | 646 | RESTRICT_TO_RANGE(vr->count, 1, USBVISION_NUMFRAMES); |
c5f48367 TM |
647 | |
648 | /* Check input validity: | |
649 | the user must do a VIDEO CAPTURE and MMAP method. */ | |
975f5766 | 650 | if (vr->memory != V4L2_MEMORY_MMAP) |
c5f48367 TM |
651 | return -EINVAL; |
652 | ||
6d6a48e5 HV |
653 | if (usbvision->streaming == stream_on) { |
654 | ret = usbvision_stream_interrupt(usbvision); | |
655 | if (ret) | |
c5f48367 | 656 | return ret; |
483dfdb6 | 657 | } |
c5f48367 TM |
658 | |
659 | usbvision_frames_free(usbvision); | |
660 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 661 | vr->count = usbvision_frames_alloc(usbvision, vr->count); |
c5f48367 | 662 | |
5490a7cb | 663 | usbvision->cur_frame = NULL; |
c5f48367 | 664 | |
483dfdb6 TM |
665 | return 0; |
666 | } | |
667 | ||
6d6a48e5 | 668 | static int vidioc_querybuf(struct file *file, |
c5f48367 | 669 | void *priv, struct v4l2_buffer *vb) |
483dfdb6 | 670 | { |
c170ecf4 | 671 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
672 | struct usbvision_frame *frame; |
673 | ||
674 | /* FIXME : must control | |
675 | that buffers are mapped (VIDIOC_REQBUFS has been called) */ | |
6d6a48e5 | 676 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 677 | return -EINVAL; |
c5f48367 | 678 | /* Updating the corresponding frame state */ |
1b18e7a0 | 679 | vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
c5f48367 | 680 | frame = &usbvision->frame[vb->index]; |
6d6a48e5 | 681 | if (frame->grabstate >= frame_state_ready) |
c5f48367 | 682 | vb->flags |= V4L2_BUF_FLAG_QUEUED; |
6d6a48e5 | 683 | if (frame->grabstate >= frame_state_done) |
c5f48367 | 684 | vb->flags |= V4L2_BUF_FLAG_DONE; |
6d6a48e5 | 685 | if (frame->grabstate == frame_state_unused) |
c5f48367 TM |
686 | vb->flags |= V4L2_BUF_FLAG_MAPPED; |
687 | vb->memory = V4L2_MEMORY_MMAP; | |
688 | ||
6d6a48e5 | 689 | vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size); |
c5f48367 TM |
690 | |
691 | vb->memory = V4L2_MEMORY_MMAP; | |
692 | vb->field = V4L2_FIELD_NONE; | |
6d6a48e5 HV |
693 | vb->length = usbvision->curwidth * |
694 | usbvision->curheight * | |
c5f48367 | 695 | usbvision->palette.bytes_per_pixel; |
459d2a5d | 696 | vb->timestamp = ns_to_timeval(usbvision->frame[vb->index].ts); |
c5f48367 TM |
697 | vb->sequence = usbvision->frame[vb->index].sequence; |
698 | return 0; | |
483dfdb6 TM |
699 | } |
700 | ||
6d6a48e5 | 701 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 702 | { |
c170ecf4 | 703 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
704 | struct usbvision_frame *frame; |
705 | unsigned long lock_flags; | |
706 | ||
707 | /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ | |
6d6a48e5 | 708 | if (vb->index >= usbvision->num_frames) |
c5f48367 | 709 | return -EINVAL; |
c5f48367 TM |
710 | |
711 | frame = &usbvision->frame[vb->index]; | |
712 | ||
6d6a48e5 | 713 | if (frame->grabstate != frame_state_unused) |
c5f48367 | 714 | return -EAGAIN; |
c5f48367 TM |
715 | |
716 | /* Mark it as ready and enqueue frame */ | |
5490a7cb HV |
717 | frame->grabstate = frame_state_ready; |
718 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
719 | frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ |
720 | ||
721 | vb->flags &= ~V4L2_BUF_FLAG_DONE; | |
722 | ||
723 | /* set v4l2_format index */ | |
724 | frame->v4l2_format = usbvision->palette; | |
725 | ||
726 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
727 | list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); | |
728 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
729 | ||
730 | return 0; | |
731 | } | |
732 | ||
6d6a48e5 | 733 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb) |
c5f48367 | 734 | { |
c170ecf4 | 735 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
736 | int ret; |
737 | struct usbvision_frame *f; | |
738 | unsigned long lock_flags; | |
739 | ||
c5f48367 | 740 | if (list_empty(&(usbvision->outqueue))) { |
5490a7cb | 741 | if (usbvision->streaming == stream_idle) |
c5f48367 TM |
742 | return -EINVAL; |
743 | ret = wait_event_interruptible | |
744 | (usbvision->wait_frame, | |
745 | !list_empty(&(usbvision->outqueue))); | |
746 | if (ret) | |
747 | return ret; | |
748 | } | |
749 | ||
750 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
751 | f = list_entry(usbvision->outqueue.next, | |
752 | struct usbvision_frame, frame); | |
753 | list_del(usbvision->outqueue.next); | |
754 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
755 | ||
5490a7cb | 756 | f->grabstate = frame_state_unused; |
c5f48367 TM |
757 | |
758 | vb->memory = V4L2_MEMORY_MMAP; | |
759 | vb->flags = V4L2_BUF_FLAG_MAPPED | | |
760 | V4L2_BUF_FLAG_QUEUED | | |
1b18e7a0 SA |
761 | V4L2_BUF_FLAG_DONE | |
762 | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
c5f48367 TM |
763 | vb->index = f->index; |
764 | vb->sequence = f->sequence; | |
459d2a5d | 765 | vb->timestamp = ns_to_timeval(f->ts); |
c5f48367 TM |
766 | vb->field = V4L2_FIELD_NONE; |
767 | vb->bytesused = f->scanlength; | |
768 | ||
769 | return 0; | |
770 | } | |
771 | ||
772 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
773 | { | |
c170ecf4 | 774 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 | 775 | |
5490a7cb | 776 | usbvision->streaming = stream_on; |
1df79537 | 777 | call_all(usbvision, video, s_stream, 1); |
c5f48367 TM |
778 | |
779 | return 0; | |
780 | } | |
781 | ||
782 | static int vidioc_streamoff(struct file *file, | |
783 | void *priv, enum v4l2_buf_type type) | |
784 | { | |
c170ecf4 | 785 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
786 | |
787 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
788 | return -EINVAL; | |
789 | ||
6d6a48e5 | 790 | if (usbvision->streaming == stream_on) { |
c5f48367 TM |
791 | usbvision_stream_interrupt(usbvision); |
792 | /* Stop all video streamings */ | |
1df79537 | 793 | call_all(usbvision, video, s_stream, 0); |
c5f48367 TM |
794 | } |
795 | usbvision_empty_framequeues(usbvision); | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
6d6a48e5 | 800 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
801 | struct v4l2_fmtdesc *vfd) |
802 | { | |
6d6a48e5 | 803 | if (vfd->index >= USBVISION_SUPPORTED_PALETTES - 1) |
c5f48367 | 804 | return -EINVAL; |
cc1e6315 MCC |
805 | strscpy(vfd->description, usbvision_v4l2_format[vfd->index].desc, |
806 | sizeof(vfd->description)); | |
c5f48367 | 807 | vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; |
c5f48367 TM |
808 | return 0; |
809 | } | |
810 | ||
6d6a48e5 | 811 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
812 | struct v4l2_format *vf) |
813 | { | |
c170ecf4 | 814 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
815 | vf->fmt.pix.width = usbvision->curwidth; |
816 | vf->fmt.pix.height = usbvision->curheight; | |
817 | vf->fmt.pix.pixelformat = usbvision->palette.format; | |
818 | vf->fmt.pix.bytesperline = | |
6d6a48e5 HV |
819 | usbvision->curwidth * usbvision->palette.bytes_per_pixel; |
820 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline * usbvision->curheight; | |
c5f48367 TM |
821 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
822 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
6d6a48e5 | 827 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
828 | struct v4l2_format *vf) |
829 | { | |
c170ecf4 | 830 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 831 | int format_idx; |
c5f48367 TM |
832 | |
833 | /* Find requested format in available ones */ | |
6d6a48e5 HV |
834 | for (format_idx = 0; format_idx < USBVISION_SUPPORTED_PALETTES; format_idx++) { |
835 | if (vf->fmt.pix.pixelformat == | |
5490a7cb HV |
836 | usbvision_v4l2_format[format_idx].format) { |
837 | usbvision->palette = usbvision_v4l2_format[format_idx]; | |
c5f48367 TM |
838 | break; |
839 | } | |
840 | } | |
841 | /* robustness */ | |
6d6a48e5 | 842 | if (format_idx == USBVISION_SUPPORTED_PALETTES) |
c5f48367 | 843 | return -EINVAL; |
c5f48367 TM |
844 | RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); |
845 | RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); | |
846 | ||
847 | vf->fmt.pix.bytesperline = vf->fmt.pix.width* | |
848 | usbvision->palette.bytes_per_pixel; | |
849 | vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; | |
4eeda6fa HV |
850 | vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
851 | vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ | |
c5f48367 TM |
852 | |
853 | return 0; | |
854 | } | |
855 | ||
78b526a4 | 856 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
c5f48367 TM |
857 | struct v4l2_format *vf) |
858 | { | |
c170ecf4 | 859 | struct usb_usbvision *usbvision = video_drvdata(file); |
c5f48367 TM |
860 | int ret; |
861 | ||
6d6a48e5 HV |
862 | ret = vidioc_try_fmt_vid_cap(file, priv, vf); |
863 | if (ret) | |
c5f48367 | 864 | return ret; |
c5f48367 TM |
865 | |
866 | /* stop io in case it is already in progress */ | |
6d6a48e5 HV |
867 | if (usbvision->streaming == stream_on) { |
868 | ret = usbvision_stream_interrupt(usbvision); | |
869 | if (ret) | |
c5f48367 TM |
870 | return ret; |
871 | } | |
872 | usbvision_frames_free(usbvision); | |
873 | usbvision_empty_framequeues(usbvision); | |
874 | ||
5490a7cb | 875 | usbvision->cur_frame = NULL; |
c5f48367 TM |
876 | |
877 | /* by now we are committed to the new data... */ | |
c5f48367 | 878 | usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); |
c5f48367 TM |
879 | |
880 | return 0; | |
881 | } | |
483dfdb6 | 882 | |
4d345708 | 883 | static ssize_t usbvision_read(struct file *file, char __user *buf, |
483dfdb6 TM |
884 | size_t count, loff_t *ppos) |
885 | { | |
c170ecf4 | 886 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
887 | int noblock = file->f_flags & O_NONBLOCK; |
888 | unsigned long lock_flags; | |
6d6a48e5 | 889 | int ret, i; |
483dfdb6 TM |
890 | struct usbvision_frame *frame; |
891 | ||
d2db42dd | 892 | PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, |
c5f48367 | 893 | (unsigned long)count, noblock); |
483dfdb6 | 894 | |
c4cdcf9f | 895 | if (!USBVISION_IS_OPERATIONAL(usbvision) || !buf) |
483dfdb6 TM |
896 | return -EFAULT; |
897 | ||
c5f48367 TM |
898 | /* This entry point is compatible with the mmap routines |
899 | so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF | |
900 | to get frames or call read on the device. */ | |
6d6a48e5 | 901 | if (!usbvision->num_frames) { |
c5f48367 TM |
902 | /* First, allocate some frames to work with |
903 | if this has not been done with VIDIOC_REQBUF */ | |
6f78e186 TM |
904 | usbvision_frames_free(usbvision); |
905 | usbvision_empty_framequeues(usbvision); | |
6d6a48e5 | 906 | usbvision_frames_alloc(usbvision, USBVISION_NUMFRAMES); |
6f78e186 TM |
907 | } |
908 | ||
6d6a48e5 | 909 | if (usbvision->streaming != stream_on) { |
6f78e186 | 910 | /* no stream is running, make it running ! */ |
5490a7cb | 911 | usbvision->streaming = stream_on; |
1df79537 | 912 | call_all(usbvision, video, s_stream, 1); |
6f78e186 | 913 | } |
483dfdb6 | 914 | |
c5f48367 TM |
915 | /* Then, enqueue as many frames as possible |
916 | (like a user of VIDIOC_QBUF would do) */ | |
6d6a48e5 | 917 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 918 | frame = &usbvision->frame[i]; |
6d6a48e5 | 919 | if (frame->grabstate == frame_state_unused) { |
483dfdb6 | 920 | /* Mark it as ready and enqueue frame */ |
5490a7cb HV |
921 | frame->grabstate = frame_state_ready; |
922 | frame->scanstate = scan_state_scanning; | |
c5f48367 TM |
923 | /* Accumulated in usbvision_parse_data() */ |
924 | frame->scanlength = 0; | |
483dfdb6 TM |
925 | |
926 | /* set v4l2_format index */ | |
927 | frame->v4l2_format = usbvision->palette; | |
928 | ||
929 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
930 | list_add_tail(&frame->frame, &usbvision->inqueue); | |
c5f48367 TM |
931 | spin_unlock_irqrestore(&usbvision->queue_lock, |
932 | lock_flags); | |
483dfdb6 TM |
933 | } |
934 | } | |
935 | ||
936 | /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ | |
937 | if (list_empty(&(usbvision->outqueue))) { | |
6d6a48e5 | 938 | if (noblock) |
483dfdb6 TM |
939 | return -EAGAIN; |
940 | ||
941 | ret = wait_event_interruptible | |
942 | (usbvision->wait_frame, | |
943 | !list_empty(&(usbvision->outqueue))); | |
944 | if (ret) | |
945 | return ret; | |
946 | } | |
947 | ||
948 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); | |
949 | frame = list_entry(usbvision->outqueue.next, | |
950 | struct usbvision_frame, frame); | |
951 | list_del(usbvision->outqueue.next); | |
952 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); | |
953 | ||
954 | /* An error returns an empty frame */ | |
5490a7cb | 955 | if (frame->grabstate == frame_state_error) { |
483dfdb6 TM |
956 | frame->bytes_read = 0; |
957 | return 0; | |
958 | } | |
959 | ||
c5f48367 | 960 | PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", |
d2db42dd | 961 | __func__, |
c5f48367 | 962 | frame->index, frame->bytes_read, frame->scanlength); |
483dfdb6 TM |
963 | |
964 | /* copy bytes to user space; we allow for partials reads */ | |
965 | if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) | |
966 | count = frame->scanlength - frame->bytes_read; | |
967 | ||
6d6a48e5 | 968 | if (copy_to_user(buf, frame->data + frame->bytes_read, count)) |
483dfdb6 | 969 | return -EFAULT; |
483dfdb6 TM |
970 | |
971 | frame->bytes_read += count; | |
c5f48367 | 972 | PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", |
d2db42dd | 973 | __func__, |
c5f48367 | 974 | (unsigned long)count, frame->bytes_read); |
483dfdb6 | 975 | |
b295e5c7 MCC |
976 | #if 1 |
977 | /* | |
978 | * FIXME: | |
979 | * For now, forget the frame if it has not been read in one shot. | |
980 | */ | |
981 | frame->bytes_read = 0; | |
982 | ||
983 | /* Mark it as available to be used again. */ | |
984 | frame->grabstate = frame_state_unused; | |
985 | #else | |
986 | if (frame->bytes_read >= frame->scanlength) { | |
987 | /* All data has been read */ | |
483dfdb6 TM |
988 | frame->bytes_read = 0; |
989 | ||
990 | /* Mark it as available to be used again. */ | |
5490a7cb | 991 | frame->grabstate = frame_state_unused; |
b295e5c7 MCC |
992 | } |
993 | #endif | |
483dfdb6 TM |
994 | |
995 | return count; | |
996 | } | |
997 | ||
4d345708 HV |
998 | static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, |
999 | size_t count, loff_t *ppos) | |
1000 | { | |
1001 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1002 | int res; | |
1003 | ||
1004 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1005 | return -ERESTARTSYS; | |
1006 | res = usbvision_read(file, buf, count, ppos); | |
1007 | mutex_unlock(&usbvision->v4l2_lock); | |
1008 | return res; | |
1009 | } | |
1010 | ||
1011 | static int usbvision_mmap(struct file *file, struct vm_area_struct *vma) | |
483dfdb6 TM |
1012 | { |
1013 | unsigned long size = vma->vm_end - vma->vm_start, | |
1014 | start = vma->vm_start; | |
1015 | void *pos; | |
1016 | u32 i; | |
c170ecf4 | 1017 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 | 1018 | |
6f78e186 TM |
1019 | PDEBUG(DBG_MMAP, "mmap"); |
1020 | ||
6d6a48e5 | 1021 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
483dfdb6 | 1022 | return -EFAULT; |
483dfdb6 TM |
1023 | |
1024 | if (!(vma->vm_flags & VM_WRITE) || | |
6f78e186 | 1025 | size != PAGE_ALIGN(usbvision->max_frame_size)) { |
483dfdb6 TM |
1026 | return -EINVAL; |
1027 | } | |
1028 | ||
6f78e186 | 1029 | for (i = 0; i < usbvision->num_frames; i++) { |
c5f48367 TM |
1030 | if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == |
1031 | vma->vm_pgoff) | |
483dfdb6 TM |
1032 | break; |
1033 | } | |
6f78e186 | 1034 | if (i == usbvision->num_frames) { |
c5f48367 TM |
1035 | PDEBUG(DBG_MMAP, |
1036 | "mmap: user supplied mapping address is out of range"); | |
483dfdb6 TM |
1037 | return -EINVAL; |
1038 | } | |
1039 | ||
1040 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
314e51b9 | 1041 | vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; |
483dfdb6 TM |
1042 | |
1043 | pos = usbvision->frame[i].data; | |
1044 | while (size > 0) { | |
483dfdb6 | 1045 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
c876a346 | 1046 | PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); |
483dfdb6 TM |
1047 | return -EAGAIN; |
1048 | } | |
1049 | start += PAGE_SIZE; | |
1050 | pos += PAGE_SIZE; | |
1051 | size -= PAGE_SIZE; | |
1052 | } | |
1053 | ||
483dfdb6 TM |
1054 | return 0; |
1055 | } | |
1056 | ||
4d345708 HV |
1057 | static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1058 | { | |
1059 | struct usb_usbvision *usbvision = video_drvdata(file); | |
1060 | int res; | |
1061 | ||
1062 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) | |
1063 | return -ERESTARTSYS; | |
1064 | res = usbvision_mmap(file, vma); | |
1065 | mutex_unlock(&usbvision->v4l2_lock); | |
1066 | return res; | |
1067 | } | |
483dfdb6 TM |
1068 | |
1069 | /* | |
1070 | * Here comes the stuff for radio on usbvision based devices | |
1071 | * | |
1072 | */ | |
bec43661 | 1073 | static int usbvision_radio_open(struct file *file) |
483dfdb6 | 1074 | { |
c170ecf4 | 1075 | struct usb_usbvision *usbvision = video_drvdata(file); |
5490a7cb | 1076 | int err_code = 0; |
483dfdb6 | 1077 | |
d2db42dd | 1078 | PDEBUG(DBG_IO, "%s:", __func__); |
483dfdb6 | 1079 | |
4d345708 HV |
1080 | if (mutex_lock_interruptible(&usbvision->v4l2_lock)) |
1081 | return -ERESTARTSYS; | |
fd95870d HV |
1082 | err_code = v4l2_fh_open(file); |
1083 | if (err_code) | |
1084 | goto out; | |
483dfdb6 | 1085 | if (usbvision->user) { |
2aa689dd | 1086 | dev_err(&usbvision->rdev.dev, |
be9ed511 MCC |
1087 | "%s: Someone tried to open an already opened USBVision Radio!\n", |
1088 | __func__); | |
5490a7cb | 1089 | err_code = -EBUSY; |
6d6a48e5 | 1090 | } else { |
2a9f8b5d | 1091 | /* Alternate interface 1 is is the biggest frame size */ |
5490a7cb HV |
1092 | err_code = usbvision_set_alternate(usbvision); |
1093 | if (err_code < 0) { | |
1094 | usbvision->last_error = err_code; | |
1095 | err_code = -EBUSY; | |
544e6175 | 1096 | goto out; |
2a9f8b5d TM |
1097 | } |
1098 | ||
52cb0bf2 | 1099 | /* If so far no errors then we shall start the radio */ |
483dfdb6 | 1100 | usbvision->radio = 1; |
1df79537 | 1101 | call_all(usbvision, tuner, s_radio); |
483dfdb6 TM |
1102 | usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); |
1103 | usbvision->user++; | |
1104 | } | |
544e6175 | 1105 | out: |
4d345708 | 1106 | mutex_unlock(&usbvision->v4l2_lock); |
5490a7cb | 1107 | return err_code; |
483dfdb6 TM |
1108 | } |
1109 | ||
1110 | ||
bec43661 | 1111 | static int usbvision_radio_close(struct file *file) |
483dfdb6 | 1112 | { |
c170ecf4 | 1113 | struct usb_usbvision *usbvision = video_drvdata(file); |
483dfdb6 TM |
1114 | |
1115 | PDEBUG(DBG_IO, ""); | |
1116 | ||
4d345708 | 1117 | mutex_lock(&usbvision->v4l2_lock); |
2a9f8b5d | 1118 | /* Set packet size to 0 */ |
6d6a48e5 | 1119 | usbvision->iface_alt = 0; |
fd95870d | 1120 | usb_set_interface(usbvision->dev, usbvision->iface, |
5490a7cb | 1121 | usbvision->iface_alt); |
2a9f8b5d | 1122 | |
483dfdb6 | 1123 | usbvision_audio_off(usbvision); |
6d6a48e5 | 1124 | usbvision->radio = 0; |
483dfdb6 | 1125 | usbvision->user--; |
5ce625a4 | 1126 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 | 1127 | |
483dfdb6 | 1128 | if (usbvision->remove_pending) { |
d2db42dd | 1129 | printk(KERN_INFO "%s: Final disconnect\n", __func__); |
fd95870d | 1130 | v4l2_fh_release(file); |
483dfdb6 | 1131 | usbvision_release(usbvision); |
fd95870d | 1132 | return 0; |
483dfdb6 TM |
1133 | } |
1134 | ||
483dfdb6 | 1135 | PDEBUG(DBG_IO, "success"); |
fd95870d | 1136 | return v4l2_fh_release(file); |
483dfdb6 TM |
1137 | } |
1138 | ||
52cb0bf2 | 1139 | /* Video registration stuff */ |
483dfdb6 | 1140 | |
52cb0bf2 | 1141 | /* Video template */ |
bec43661 | 1142 | static const struct v4l2_file_operations usbvision_fops = { |
483dfdb6 | 1143 | .owner = THIS_MODULE, |
483dfdb6 TM |
1144 | .open = usbvision_v4l2_open, |
1145 | .release = usbvision_v4l2_close, | |
1146 | .read = usbvision_v4l2_read, | |
1147 | .mmap = usbvision_v4l2_mmap, | |
c627b9d1 | 1148 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 | 1149 | }; |
a399810c HV |
1150 | |
1151 | static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { | |
c5f48367 | 1152 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1153 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1154 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1155 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1156 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c5f48367 TM |
1157 | .vidioc_reqbufs = vidioc_reqbufs, |
1158 | .vidioc_querybuf = vidioc_querybuf, | |
1159 | .vidioc_qbuf = vidioc_qbuf, | |
1160 | .vidioc_dqbuf = vidioc_dqbuf, | |
1161 | .vidioc_s_std = vidioc_s_std, | |
3b8436d9 | 1162 | .vidioc_g_std = vidioc_g_std, |
c5f48367 TM |
1163 | .vidioc_enum_input = vidioc_enum_input, |
1164 | .vidioc_g_input = vidioc_g_input, | |
1165 | .vidioc_s_input = vidioc_s_input, | |
c5f48367 TM |
1166 | .vidioc_streamon = vidioc_streamon, |
1167 | .vidioc_streamoff = vidioc_streamoff, | |
c5f48367 TM |
1168 | .vidioc_g_tuner = vidioc_g_tuner, |
1169 | .vidioc_s_tuner = vidioc_s_tuner, | |
1170 | .vidioc_g_frequency = vidioc_g_frequency, | |
1171 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1172 | .vidioc_log_status = v4l2_ctrl_log_status, |
1173 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1174 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
c5f48367 TM |
1175 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1176 | .vidioc_g_register = vidioc_g_register, | |
1177 | .vidioc_s_register = vidioc_s_register, | |
1178 | #endif | |
a399810c HV |
1179 | }; |
1180 | ||
1181 | static struct video_device usbvision_video_template = { | |
a399810c | 1182 | .fops = &usbvision_fops, |
6d6a48e5 | 1183 | .ioctl_ops = &usbvision_ioctl_ops, |
a399810c | 1184 | .name = "usbvision-video", |
2aa689dd | 1185 | .release = video_device_release_empty, |
6d6a48e5 | 1186 | .tvnorms = USBVISION_NORMS, |
483dfdb6 TM |
1187 | }; |
1188 | ||
1189 | ||
52cb0bf2 | 1190 | /* Radio template */ |
bec43661 | 1191 | static const struct v4l2_file_operations usbvision_radio_fops = { |
483dfdb6 | 1192 | .owner = THIS_MODULE, |
483dfdb6 TM |
1193 | .open = usbvision_radio_open, |
1194 | .release = usbvision_radio_close, | |
fd95870d | 1195 | .poll = v4l2_ctrl_poll, |
c627b9d1 | 1196 | .unlocked_ioctl = video_ioctl2, |
483dfdb6 TM |
1197 | }; |
1198 | ||
a399810c | 1199 | static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { |
c5f48367 | 1200 | .vidioc_querycap = vidioc_querycap, |
c5f48367 TM |
1201 | .vidioc_g_tuner = vidioc_g_tuner, |
1202 | .vidioc_s_tuner = vidioc_s_tuner, | |
1203 | .vidioc_g_frequency = vidioc_g_frequency, | |
1204 | .vidioc_s_frequency = vidioc_s_frequency, | |
fd95870d HV |
1205 | .vidioc_log_status = v4l2_ctrl_log_status, |
1206 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1207 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
a399810c HV |
1208 | }; |
1209 | ||
1210 | static struct video_device usbvision_radio_template = { | |
a399810c | 1211 | .fops = &usbvision_radio_fops, |
6d6a48e5 | 1212 | .name = "usbvision-radio", |
2aa689dd | 1213 | .release = video_device_release_empty, |
6d6a48e5 | 1214 | .ioctl_ops = &usbvision_radio_ioctl_ops, |
483dfdb6 TM |
1215 | }; |
1216 | ||
483dfdb6 | 1217 | |
2aa689dd HV |
1218 | static void usbvision_vdev_init(struct usb_usbvision *usbvision, |
1219 | struct video_device *vdev, | |
1220 | const struct video_device *vdev_template, | |
1221 | const char *name) | |
483dfdb6 TM |
1222 | { |
1223 | struct usb_device *usb_dev = usbvision->dev; | |
483dfdb6 | 1224 | |
c4cdcf9f | 1225 | if (!usb_dev) { |
be9ed511 MCC |
1226 | dev_err(&usbvision->dev->dev, |
1227 | "%s: usbvision->dev is not set\n", __func__); | |
2aa689dd | 1228 | return; |
483dfdb6 TM |
1229 | } |
1230 | ||
483dfdb6 | 1231 | *vdev = *vdev_template; |
c627b9d1 | 1232 | vdev->lock = &usbvision->v4l2_lock; |
1df79537 | 1233 | vdev->v4l2_dev = &usbvision->v4l2_dev; |
483dfdb6 TM |
1234 | snprintf(vdev->name, sizeof(vdev->name), "%s", name); |
1235 | video_set_drvdata(vdev, usbvision); | |
483dfdb6 TM |
1236 | } |
1237 | ||
52cb0bf2 | 1238 | /* unregister video4linux devices */ |
483dfdb6 TM |
1239 | static void usbvision_unregister_video(struct usb_usbvision *usbvision) |
1240 | { | |
52cb0bf2 | 1241 | /* Radio Device: */ |
2aa689dd | 1242 | if (video_is_registered(&usbvision->rdev)) { |
38c7c036 | 1243 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1244 | video_device_node_name(&usbvision->rdev)); |
1245 | video_unregister_device(&usbvision->rdev); | |
483dfdb6 TM |
1246 | } |
1247 | ||
52cb0bf2 | 1248 | /* Video Device: */ |
2aa689dd | 1249 | if (video_is_registered(&usbvision->vdev)) { |
38c7c036 | 1250 | PDEBUG(DBG_PROBE, "unregister %s [v4l2]", |
2aa689dd HV |
1251 | video_device_node_name(&usbvision->vdev)); |
1252 | video_unregister_device(&usbvision->vdev); | |
483dfdb6 TM |
1253 | } |
1254 | } | |
1255 | ||
52cb0bf2 | 1256 | /* register video4linux devices */ |
4c62e976 | 1257 | static int usbvision_register_video(struct usb_usbvision *usbvision) |
483dfdb6 | 1258 | { |
2b43665f HV |
1259 | int res = -ENOMEM; |
1260 | ||
52cb0bf2 | 1261 | /* Video Device: */ |
2aa689dd HV |
1262 | usbvision_vdev_init(usbvision, &usbvision->vdev, |
1263 | &usbvision_video_template, "USBVision Video"); | |
64d416ec HV |
1264 | if (!usbvision->have_tuner) { |
1265 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1266 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1267 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_G_FREQUENCY); | |
1268 | v4l2_disable_ioctl(&usbvision->vdev, VIDIOC_S_TUNER); | |
1269 | } | |
2aa689dd | 1270 | if (video_register_device(&usbvision->vdev, VFL_TYPE_GRABBER, video_nr) < 0) |
483dfdb6 | 1271 | goto err_exit; |
38c7c036 | 1272 | printk(KERN_INFO "USBVision[%d]: registered USBVision Video device %s [v4l2]\n", |
2aa689dd | 1273 | usbvision->nr, video_device_node_name(&usbvision->vdev)); |
483dfdb6 | 1274 | |
52cb0bf2 | 1275 | /* Radio Device: */ |
5490a7cb | 1276 | if (usbvision_device_data[usbvision->dev_model].radio) { |
52cb0bf2 | 1277 | /* usbvision has radio */ |
2aa689dd HV |
1278 | usbvision_vdev_init(usbvision, &usbvision->rdev, |
1279 | &usbvision_radio_template, "USBVision Radio"); | |
1280 | if (video_register_device(&usbvision->rdev, VFL_TYPE_RADIO, radio_nr) < 0) | |
483dfdb6 | 1281 | goto err_exit; |
38c7c036 | 1282 | printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device %s [v4l2]\n", |
2aa689dd | 1283 | usbvision->nr, video_device_node_name(&usbvision->rdev)); |
483dfdb6 | 1284 | } |
52cb0bf2 | 1285 | /* all done */ |
483dfdb6 TM |
1286 | return 0; |
1287 | ||
1288 | err_exit: | |
be9ed511 MCC |
1289 | dev_err(&usbvision->dev->dev, |
1290 | "USBVision[%d]: video_register_device() failed\n", | |
1291 | usbvision->nr); | |
483dfdb6 | 1292 | usbvision_unregister_video(usbvision); |
2b43665f | 1293 | return res; |
483dfdb6 TM |
1294 | } |
1295 | ||
1296 | /* | |
1297 | * usbvision_alloc() | |
1298 | * | |
c5f48367 TM |
1299 | * This code allocates the struct usb_usbvision. |
1300 | * It is filled with default values. | |
483dfdb6 TM |
1301 | * |
1302 | * Returns NULL on error, a pointer to usb_usbvision else. | |
1303 | * | |
1304 | */ | |
a878440d JG |
1305 | static struct usb_usbvision *usbvision_alloc(struct usb_device *dev, |
1306 | struct usb_interface *intf) | |
483dfdb6 TM |
1307 | { |
1308 | struct usb_usbvision *usbvision; | |
1309 | ||
1fbfd8c1 | 1310 | usbvision = kzalloc(sizeof(*usbvision), GFP_KERNEL); |
c4cdcf9f | 1311 | if (!usbvision) |
1df79537 | 1312 | return NULL; |
483dfdb6 TM |
1313 | |
1314 | usbvision->dev = dev; | |
a878440d | 1315 | if (v4l2_device_register(&intf->dev, &usbvision->v4l2_dev)) |
1df79537 | 1316 | goto err_free; |
483dfdb6 | 1317 | |
fd95870d HV |
1318 | if (v4l2_ctrl_handler_init(&usbvision->hdl, 4)) |
1319 | goto err_unreg; | |
1320 | usbvision->v4l2_dev.ctrl_handler = &usbvision->hdl; | |
c627b9d1 | 1321 | mutex_init(&usbvision->v4l2_lock); |
483dfdb6 | 1322 | |
52cb0bf2 | 1323 | /* prepare control urb for control messages during interrupts */ |
5490a7cb | 1324 | usbvision->ctrl_urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
c4cdcf9f | 1325 | if (!usbvision->ctrl_urb) |
1df79537 | 1326 | goto err_unreg; |
483dfdb6 | 1327 | |
483dfdb6 TM |
1328 | return usbvision; |
1329 | ||
1df79537 | 1330 | err_unreg: |
fd95870d | 1331 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 HV |
1332 | v4l2_device_unregister(&usbvision->v4l2_dev); |
1333 | err_free: | |
1334 | kfree(usbvision); | |
483dfdb6 TM |
1335 | return NULL; |
1336 | } | |
1337 | ||
1338 | /* | |
1339 | * usbvision_release() | |
1340 | * | |
1341 | * This code does final release of struct usb_usbvision. This happens | |
1342 | * after the device is disconnected -and- all clients closed their files. | |
1343 | * | |
1344 | */ | |
1345 | static void usbvision_release(struct usb_usbvision *usbvision) | |
1346 | { | |
1347 | PDEBUG(DBG_PROBE, ""); | |
1348 | ||
483dfdb6 TM |
1349 | usbvision->initialized = 0; |
1350 | ||
2aa689dd | 1351 | usbvision_remove_sysfs(&usbvision->vdev); |
483dfdb6 | 1352 | usbvision_unregister_video(usbvision); |
090c65b6 | 1353 | kfree(usbvision->alt_max_pkt_size); |
483dfdb6 | 1354 | |
6d6a48e5 | 1355 | usb_free_urb(usbvision->ctrl_urb); |
483dfdb6 | 1356 | |
fd95870d | 1357 | v4l2_ctrl_handler_free(&usbvision->hdl); |
1df79537 | 1358 | v4l2_device_unregister(&usbvision->v4l2_dev); |
483dfdb6 TM |
1359 | kfree(usbvision); |
1360 | ||
1361 | PDEBUG(DBG_PROBE, "success"); | |
1362 | } | |
1363 | ||
1364 | ||
c5f48367 | 1365 | /*********************** usb interface **********************************/ |
483dfdb6 TM |
1366 | |
1367 | static void usbvision_configure_video(struct usb_usbvision *usbvision) | |
1368 | { | |
c5f48367 | 1369 | int model; |
483dfdb6 | 1370 | |
c4cdcf9f | 1371 | if (!usbvision) |
483dfdb6 TM |
1372 | return; |
1373 | ||
5490a7cb | 1374 | model = usbvision->dev_model; |
52cb0bf2 | 1375 | usbvision->palette = usbvision_v4l2_format[2]; /* V4L2_PIX_FMT_RGB24; */ |
483dfdb6 | 1376 | |
5490a7cb HV |
1377 | if (usbvision_device_data[usbvision->dev_model].vin_reg2_override) { |
1378 | usbvision->vin_reg2_preset = | |
1379 | usbvision_device_data[usbvision->dev_model].vin_reg2; | |
483dfdb6 | 1380 | } else { |
5490a7cb | 1381 | usbvision->vin_reg2_preset = 0; |
483dfdb6 TM |
1382 | } |
1383 | ||
5490a7cb | 1384 | usbvision->tvnorm_id = usbvision_device_data[model].video_norm; |
5490a7cb | 1385 | usbvision->video_inputs = usbvision_device_data[model].video_channels; |
483dfdb6 | 1386 | usbvision->ctl_input = 0; |
64d416ec HV |
1387 | usbvision->radio_freq = 87.5 * 16000; |
1388 | usbvision->tv_freq = 400 * 16; | |
483dfdb6 TM |
1389 | |
1390 | /* This should be here to make i2c clients to be able to register */ | |
c5f48367 | 1391 | /* first switch off audio */ |
240d57bb OZ |
1392 | if (usbvision_device_data[model].audio_channels > 0) |
1393 | usbvision_audio_off(usbvision); | |
62e25949 HV |
1394 | /* and then power up the tuner */ |
1395 | usbvision_power_on(usbvision); | |
1396 | usbvision_i2c_register(usbvision); | |
483dfdb6 TM |
1397 | } |
1398 | ||
1399 | /* | |
1400 | * usbvision_probe() | |
1401 | * | |
1402 | * This procedure queries device descriptor and accepts the interface | |
1403 | * if it looks like USBVISION video device | |
1404 | * | |
1405 | */ | |
4c62e976 GKH |
1406 | static int usbvision_probe(struct usb_interface *intf, |
1407 | const struct usb_device_id *devid) | |
483dfdb6 | 1408 | { |
2a9f8b5d TM |
1409 | struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); |
1410 | struct usb_interface *uif; | |
483dfdb6 TM |
1411 | __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; |
1412 | const struct usb_host_interface *interface; | |
1413 | struct usb_usbvision *usbvision = NULL; | |
1414 | const struct usb_endpoint_descriptor *endpoint; | |
afd270d1 | 1415 | int model, i, ret; |
483dfdb6 TM |
1416 | |
1417 | PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", | |
ab64a589 JH |
1418 | le16_to_cpu(dev->descriptor.idVendor), |
1419 | le16_to_cpu(dev->descriptor.idProduct), ifnum); | |
2a9f8b5d | 1420 | |
659ae56d | 1421 | model = devid->driver_info; |
6d6a48e5 HV |
1422 | if (model < 0 || model >= usbvision_device_data_size) { |
1423 | PDEBUG(DBG_PROBE, "model out of bounds %d", model); | |
afd270d1 AK |
1424 | ret = -ENODEV; |
1425 | goto err_usb; | |
f8a389db | 1426 | } |
d2db42dd | 1427 | printk(KERN_INFO "%s: %s found\n", __func__, |
5490a7cb | 1428 | usbvision_device_data[model].model_string); |
483dfdb6 | 1429 | |
6d6a48e5 | 1430 | if (usbvision_device_data[model].interface >= 0) |
5490a7cb | 1431 | interface = &dev->actconfig->interface[usbvision_device_data[model].interface]->altsetting[0]; |
fa52bd50 | 1432 | else if (ifnum < dev->actconfig->desc.bNumInterfaces) |
483dfdb6 | 1433 | interface = &dev->actconfig->interface[ifnum]->altsetting[0]; |
fa52bd50 VD |
1434 | else { |
1435 | dev_err(&intf->dev, "interface %d is invalid, max is %d\n", | |
1436 | ifnum, dev->actconfig->desc.bNumInterfaces - 1); | |
1437 | ret = -ENODEV; | |
1438 | goto err_usb; | |
1439 | } | |
1440 | ||
1441 | if (interface->desc.bNumEndpoints < 2) { | |
02c539d3 MCC |
1442 | dev_err(&intf->dev, "interface %d has %d endpoints, but must have minimum 2\n", |
1443 | ifnum, interface->desc.bNumEndpoints); | |
fa52bd50 VD |
1444 | ret = -ENODEV; |
1445 | goto err_usb; | |
1446 | } | |
483dfdb6 | 1447 | endpoint = &interface->endpoint[1].desc; |
fa52bd50 | 1448 | |
2230c3c8 | 1449 | if (!usb_endpoint_xfer_isoc(endpoint)) { |
be9ed511 | 1450 | dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", |
d2db42dd | 1451 | __func__, ifnum); |
be9ed511 | 1452 | dev_err(&intf->dev, "%s: Endpoint attributes %d", |
d2db42dd | 1453 | __func__, endpoint->bmAttributes); |
afd270d1 AK |
1454 | ret = -ENODEV; |
1455 | goto err_usb; | |
483dfdb6 | 1456 | } |
13417982 | 1457 | if (usb_endpoint_dir_out(endpoint)) { |
be9ed511 | 1458 | dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", |
d2db42dd | 1459 | __func__, ifnum); |
afd270d1 AK |
1460 | ret = -ENODEV; |
1461 | goto err_usb; | |
483dfdb6 TM |
1462 | } |
1463 | ||
a878440d | 1464 | usbvision = usbvision_alloc(dev, intf); |
c4cdcf9f | 1465 | if (!usbvision) { |
be9ed511 | 1466 | dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); |
afd270d1 AK |
1467 | ret = -ENOMEM; |
1468 | goto err_usb; | |
483dfdb6 | 1469 | } |
659ae56d | 1470 | |
6d6a48e5 | 1471 | if (dev->descriptor.bNumConfigurations > 1) |
5490a7cb | 1472 | usbvision->bridge_type = BRIDGE_NT1004; |
6d6a48e5 | 1473 | else if (model == DAZZLE_DVC_90_REV_1_SECAM) |
5490a7cb | 1474 | usbvision->bridge_type = BRIDGE_NT1005; |
6d6a48e5 | 1475 | else |
5490a7cb | 1476 | usbvision->bridge_type = BRIDGE_NT1003; |
5490a7cb | 1477 | PDEBUG(DBG_PROBE, "bridge_type %d", usbvision->bridge_type); |
483dfdb6 | 1478 | |
2a9f8b5d TM |
1479 | /* compute alternate max packet sizes */ |
1480 | uif = dev->actconfig->interface[0]; | |
1481 | ||
6d6a48e5 HV |
1482 | usbvision->num_alt = uif->num_altsetting; |
1483 | PDEBUG(DBG_PROBE, "Alternate settings: %i", usbvision->num_alt); | |
6da2ec56 KC |
1484 | usbvision->alt_max_pkt_size = kmalloc_array(32, usbvision->num_alt, |
1485 | GFP_KERNEL); | |
c4cdcf9f | 1486 | if (!usbvision->alt_max_pkt_size) { |
afd270d1 AK |
1487 | ret = -ENOMEM; |
1488 | goto err_pkt; | |
2a9f8b5d TM |
1489 | } |
1490 | ||
6d6a48e5 | 1491 | for (i = 0; i < usbvision->num_alt; i++) { |
eacb975b JH |
1492 | u16 tmp; |
1493 | ||
1494 | if (uif->altsetting[i].desc.bNumEndpoints < 2) { | |
1495 | ret = -ENODEV; | |
1496 | goto err_pkt; | |
1497 | } | |
1498 | ||
1499 | tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
2a9f8b5d TM |
1500 | wMaxPacketSize); |
1501 | usbvision->alt_max_pkt_size[i] = | |
1502 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6d6a48e5 | 1503 | PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i", i, |
2a9f8b5d TM |
1504 | usbvision->alt_max_pkt_size[i]); |
1505 | } | |
1506 | ||
1507 | ||
483dfdb6 TM |
1508 | usbvision->nr = usbvision_nr++; |
1509 | ||
df3cfa6d HV |
1510 | spin_lock_init(&usbvision->queue_lock); |
1511 | init_waitqueue_head(&usbvision->wait_frame); | |
1512 | init_waitqueue_head(&usbvision->wait_stream); | |
1513 | ||
5490a7cb | 1514 | usbvision->have_tuner = usbvision_device_data[model].tuner; |
6d6a48e5 | 1515 | if (usbvision->have_tuner) |
5490a7cb | 1516 | usbvision->tuner_type = usbvision_device_data[model].tuner_type; |
483dfdb6 | 1517 | |
5490a7cb | 1518 | usbvision->dev_model = model; |
483dfdb6 TM |
1519 | usbvision->remove_pending = 0; |
1520 | usbvision->iface = ifnum; | |
5490a7cb | 1521 | usbvision->iface_alt = 0; |
483dfdb6 | 1522 | usbvision->video_endp = endpoint->bEndpointAddress; |
5490a7cb | 1523 | usbvision->isoc_packet_size = 0; |
483dfdb6 TM |
1524 | usbvision->usb_bandwidth = 0; |
1525 | usbvision->user = 0; | |
5490a7cb | 1526 | usbvision->streaming = stream_off; |
483dfdb6 | 1527 | usbvision_configure_video(usbvision); |
8403472f | 1528 | usbvision_register_video(usbvision); |
483dfdb6 | 1529 | |
2aa689dd | 1530 | usbvision_create_sysfs(&usbvision->vdev); |
483dfdb6 TM |
1531 | |
1532 | PDEBUG(DBG_PROBE, "success"); | |
1533 | return 0; | |
afd270d1 AK |
1534 | |
1535 | err_pkt: | |
1536 | usbvision_release(usbvision); | |
1537 | err_usb: | |
1538 | usb_put_dev(dev); | |
1539 | return ret; | |
483dfdb6 TM |
1540 | } |
1541 | ||
1542 | ||
1543 | /* | |
1544 | * usbvision_disconnect() | |
1545 | * | |
1546 | * This procedure stops all driver activity, deallocates interface-private | |
1547 | * structure (pointed by 'ptr') and after that driver should be removable | |
1548 | * with no ill consequences. | |
1549 | * | |
1550 | */ | |
4c62e976 | 1551 | static void usbvision_disconnect(struct usb_interface *intf) |
483dfdb6 | 1552 | { |
aeb506aa | 1553 | struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); |
483dfdb6 TM |
1554 | |
1555 | PDEBUG(DBG_PROBE, ""); | |
1556 | ||
c4cdcf9f | 1557 | if (!usbvision) { |
4202066c | 1558 | pr_err("%s: usb_get_intfdata() failed\n", __func__); |
483dfdb6 TM |
1559 | return; |
1560 | } | |
483dfdb6 | 1561 | |
c627b9d1 | 1562 | mutex_lock(&usbvision->v4l2_lock); |
483dfdb6 | 1563 | |
52cb0bf2 | 1564 | /* At this time we ask to cancel outstanding URBs */ |
483dfdb6 TM |
1565 | usbvision_stop_isoc(usbvision); |
1566 | ||
f1ba28c3 | 1567 | v4l2_device_disconnect(&usbvision->v4l2_dev); |
62e25949 | 1568 | usbvision_i2c_unregister(usbvision); |
52cb0bf2 | 1569 | usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ |
483dfdb6 TM |
1570 | |
1571 | usb_put_dev(usbvision->dev); | |
52cb0bf2 | 1572 | usbvision->dev = NULL; /* USB device is no more */ |
483dfdb6 | 1573 | |
c627b9d1 | 1574 | mutex_unlock(&usbvision->v4l2_lock); |
483dfdb6 TM |
1575 | |
1576 | if (usbvision->user) { | |
c5f48367 | 1577 | printk(KERN_INFO "%s: In use, disconnect pending\n", |
d2db42dd | 1578 | __func__); |
483dfdb6 TM |
1579 | wake_up_interruptible(&usbvision->wait_frame); |
1580 | wake_up_interruptible(&usbvision->wait_stream); | |
c5f48367 | 1581 | } else { |
483dfdb6 TM |
1582 | usbvision_release(usbvision); |
1583 | } | |
1584 | ||
1585 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1586 | } |
1587 | ||
1588 | static struct usb_driver usbvision_driver = { | |
1589 | .name = "usbvision", | |
1590 | .id_table = usbvision_table, | |
1591 | .probe = usbvision_probe, | |
4c62e976 | 1592 | .disconnect = usbvision_disconnect, |
483dfdb6 TM |
1593 | }; |
1594 | ||
483dfdb6 TM |
1595 | /* |
1596 | * usbvision_init() | |
1597 | * | |
1598 | * This code is run to initialize the driver. | |
1599 | * | |
1600 | */ | |
1601 | static int __init usbvision_init(void) | |
1602 | { | |
5490a7cb | 1603 | int err_code; |
483dfdb6 TM |
1604 | |
1605 | PDEBUG(DBG_PROBE, ""); | |
1606 | ||
483dfdb6 TM |
1607 | PDEBUG(DBG_IO, "IO debugging is enabled [video]"); |
1608 | PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); | |
c876a346 | 1609 | PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); |
483dfdb6 TM |
1610 | |
1611 | /* disable planar mode support unless compression enabled */ | |
6d6a48e5 | 1612 | if (isoc_mode != ISOC_MODE_COMPRESS) { |
52cb0bf2 HV |
1613 | /* FIXME : not the right way to set supported flag */ |
1614 | usbvision_v4l2_format[6].supported = 0; /* V4L2_PIX_FMT_YVU420 */ | |
1615 | usbvision_v4l2_format[7].supported = 0; /* V4L2_PIX_FMT_YUV422P */ | |
483dfdb6 TM |
1616 | } |
1617 | ||
5490a7cb | 1618 | err_code = usb_register(&usbvision_driver); |
483dfdb6 | 1619 | |
5490a7cb | 1620 | if (err_code == 0) { |
de6a1b8e | 1621 | printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); |
483dfdb6 TM |
1622 | PDEBUG(DBG_PROBE, "success"); |
1623 | } | |
5490a7cb | 1624 | return err_code; |
483dfdb6 TM |
1625 | } |
1626 | ||
1627 | static void __exit usbvision_exit(void) | |
1628 | { | |
6d6a48e5 | 1629 | PDEBUG(DBG_PROBE, ""); |
483dfdb6 | 1630 | |
6d6a48e5 HV |
1631 | usb_deregister(&usbvision_driver); |
1632 | PDEBUG(DBG_PROBE, "success"); | |
483dfdb6 TM |
1633 | } |
1634 | ||
1635 | module_init(usbvision_init); | |
1636 | module_exit(usbvision_exit); |