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Commit | Line | Data |
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a6c2ba28 | 1 | /* |
f7abcd38 | 2 | em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices |
a6c2ba28 | 3 | |
f7abcd38 MCC |
4 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
5 | Markus Rechberger <mrechberger@gmail.com> | |
4ac97914 | 6 | Mauro Carvalho Chehab <mchehab@brturbo.com.br> |
f7abcd38 | 7 | Sascha Sommer <saschasommer@freenet.de> |
a6c2ba28 | 8 | |
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | #include <linux/init.h> | |
25 | #include <linux/list.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/usb.h> | |
a6c2ba28 | 29 | #include <linux/i2c.h> |
b296fc60 | 30 | #include <linux/version.h> |
a6c2ba28 | 31 | #include <linux/video_decoder.h> |
32 | ||
f7abcd38 | 33 | #include "em28xx.h" |
d5e52653 | 34 | #include <media/tuner.h> |
a6c2ba28 | 35 | |
f7abcd38 MCC |
36 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
37 | "Markus Rechberger <mrechberger@gmail.com>, " \ | |
38 | "Mauro Carvalho Chehab <mchehab@brturbo.com.br>, " \ | |
39 | "Sascha Sommer <saschasommer@freenet.de>" | |
a6c2ba28 | 40 | |
f7abcd38 MCC |
41 | #define DRIVER_NAME "em28xx" |
42 | #define DRIVER_DESC "Empia em28xx based USB video device driver" | |
3acf2809 | 43 | #define EM28XX_VERSION_CODE KERNEL_VERSION(0, 0, 1) |
a6c2ba28 | 44 | |
3acf2809 | 45 | #define em28xx_videodbg(fmt, arg...) do {\ |
4ac97914 MCC |
46 | if (video_debug) \ |
47 | printk(KERN_INFO "%s %s :"fmt, \ | |
f85c657f | 48 | dev->name, __FUNCTION__ , ##arg); } while (0) |
a6c2ba28 | 49 | |
50 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
51 | MODULE_DESCRIPTION(DRIVER_DESC); | |
52 | MODULE_LICENSE("GPL"); | |
53 | ||
3acf2809 | 54 | static LIST_HEAD(em28xx_devlist); |
9c75541f | 55 | |
9d4d9c05 | 56 | static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
596d92d5 MCC |
57 | module_param_array(card, int, NULL, 0444); |
58 | MODULE_PARM_DESC(card,"card type"); | |
59 | ||
a6c2ba28 | 60 | static int tuner = -1; |
61 | module_param(tuner, int, 0444); | |
62 | MODULE_PARM_DESC(tuner, "tuner type"); | |
63 | ||
64 | static unsigned int video_debug = 0; | |
65 | module_param(video_debug,int,0644); | |
66 | MODULE_PARM_DESC(video_debug,"enable debug messages [video]"); | |
67 | ||
68 | /* supported tv norms */ | |
3acf2809 | 69 | static struct em28xx_tvnorm tvnorms[] = { |
a6c2ba28 | 70 | { |
71 | .name = "PAL", | |
72 | .id = V4L2_STD_PAL, | |
73 | .mode = VIDEO_MODE_PAL, | |
74 | }, { | |
75 | .name = "NTSC", | |
76 | .id = V4L2_STD_NTSC, | |
77 | .mode = VIDEO_MODE_NTSC, | |
78 | }, { | |
79 | .name = "SECAM", | |
80 | .id = V4L2_STD_SECAM, | |
81 | .mode = VIDEO_MODE_SECAM, | |
82 | }, { | |
83 | .name = "PAL-M", | |
84 | .id = V4L2_STD_PAL_M, | |
85 | .mode = VIDEO_MODE_PAL, | |
86 | } | |
87 | }; | |
88 | ||
a38a7d4f MR |
89 | static const unsigned char saa7114_i2c_init[] = { |
90 | 0x00,0x00,0x01,0x08,0x02,0xc4,0x03,0x30,0x04,0x90,0x05,0x90,0x06,0xeb,0x07,0xe0, | |
91 | 0x08,0x88,0x09,0x40,0x0a,0x80,0x0b,0x44,0x0c,0x40,0x0d,0x00,0x0e,0x81,0x0f,0x2a, | |
92 | 0x10,0x06,0x11,0x00,0x12,0xc8,0x13,0x80,0x14,0x00,0x15,0x11,0x16,0x01,0x17,0x42, | |
93 | 0x18,0x40,0x19,0x80,0x40,0x00,0x41,0xff,0x42,0xff,0x43,0xff,0x44,0xff,0x45,0xff, | |
94 | 0x46,0xff,0x47,0xff,0x48,0xff,0x49,0xff,0x4a,0xff,0x4b,0xff,0x4c,0xff,0x4d,0xff, | |
95 | 0x4e,0xff,0x4f,0xff,0x50,0xff,0x51,0xff,0x52,0xff,0x53,0xff,0x54,0x5f,0x55,0xff, | |
96 | 0x56,0xff,0x57,0xff,0x58,0x00,0x59,0x47,0x5a,0x03,0x5b,0x03,0x5d,0x3e,0x5e,0x00, | |
97 | 0x80,0x1c,0x83,0x01,0x84,0xa5,0x85,0x10,0x86,0x45,0x87,0x41,0x88,0xf0,0x88,0x00, | |
98 | 0x88,0xf0,0x90,0x00,0x91,0x08,0x92,0x00,0x93,0x80,0x94,0x08,0x95,0x00,0x96,0xc0, | |
99 | 0x97,0x02,0x98,0x13,0x99,0x00,0x9a,0x38,0x9b,0x01,0x9c,0x80,0x9d,0x02,0x9e,0x06, | |
100 | 0x9f,0x01,0xa0,0x01,0xa1,0x00,0xa2,0x00,0xa4,0x80,0xa5,0x36,0xa6,0x36,0xa8,0x67, | |
101 | 0xa9,0x04,0xaa,0x00,0xac,0x33,0xad,0x02,0xae,0x00,0xb0,0xcd,0xb1,0x04,0xb2,0xcd, | |
102 | 0xb3,0x04,0xb4,0x01,0xb8,0x00,0xb9,0x00,0xba,0x00,0xbb,0x00,0xbc,0x00,0xbd,0x00, | |
103 | 0xbe,0x00,0xbf,0x00 | |
104 | }; | |
105 | ||
a6c2ba28 | 106 | #define TVNORMS ARRAY_SIZE(tvnorms) |
107 | ||
108 | /* supported controls */ | |
3acf2809 | 109 | static struct v4l2_queryctrl em28xx_qctrl[] = { |
a6c2ba28 | 110 | { |
111 | .id = V4L2_CID_BRIGHTNESS, | |
112 | .type = V4L2_CTRL_TYPE_INTEGER, | |
113 | .name = "Brightness", | |
114 | .minimum = -128, | |
115 | .maximum = 127, | |
116 | .step = 1, | |
117 | .default_value = 0, | |
118 | .flags = 0, | |
119 | },{ | |
120 | .id = V4L2_CID_CONTRAST, | |
121 | .type = V4L2_CTRL_TYPE_INTEGER, | |
122 | .name = "Contrast", | |
123 | .minimum = 0x0, | |
124 | .maximum = 0x1f, | |
125 | .step = 0x1, | |
126 | .default_value = 0x10, | |
127 | .flags = 0, | |
128 | },{ | |
129 | .id = V4L2_CID_SATURATION, | |
130 | .type = V4L2_CTRL_TYPE_INTEGER, | |
131 | .name = "Saturation", | |
132 | .minimum = 0x0, | |
133 | .maximum = 0x1f, | |
134 | .step = 0x1, | |
135 | .default_value = 0x10, | |
136 | .flags = 0, | |
137 | },{ | |
138 | .id = V4L2_CID_AUDIO_VOLUME, | |
139 | .type = V4L2_CTRL_TYPE_INTEGER, | |
140 | .name = "Volume", | |
141 | .minimum = 0x0, | |
142 | .maximum = 0x1f, | |
143 | .step = 0x1, | |
144 | .default_value = 0x1f, | |
145 | .flags = 0, | |
146 | },{ | |
147 | .id = V4L2_CID_AUDIO_MUTE, | |
148 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
149 | .name = "Mute", | |
150 | .minimum = 0, | |
151 | .maximum = 1, | |
152 | .step = 1, | |
153 | .default_value = 1, | |
154 | .flags = 0, | |
155 | },{ | |
156 | .id = V4L2_CID_RED_BALANCE, | |
157 | .type = V4L2_CTRL_TYPE_INTEGER, | |
158 | .name = "Red chroma balance", | |
159 | .minimum = -128, | |
160 | .maximum = 127, | |
161 | .step = 1, | |
162 | .default_value = 0, | |
163 | .flags = 0, | |
164 | },{ | |
165 | .id = V4L2_CID_BLUE_BALANCE, | |
166 | .type = V4L2_CTRL_TYPE_INTEGER, | |
167 | .name = "Blue chroma balance", | |
168 | .minimum = -128, | |
169 | .maximum = 127, | |
170 | .step = 1, | |
171 | .default_value = 0, | |
172 | .flags = 0, | |
173 | },{ | |
174 | .id = V4L2_CID_GAMMA, | |
175 | .type = V4L2_CTRL_TYPE_INTEGER, | |
176 | .name = "Gamma", | |
177 | .minimum = 0x0, | |
178 | .maximum = 0x3f, | |
179 | .step = 0x1, | |
180 | .default_value = 0x20, | |
181 | .flags = 0, | |
182 | } | |
183 | }; | |
184 | ||
3acf2809 | 185 | static struct usb_driver em28xx_usb_driver; |
a6c2ba28 | 186 | |
3acf2809 MCC |
187 | static DECLARE_MUTEX(em28xx_sysfs_lock); |
188 | static DECLARE_RWSEM(em28xx_disconnect); | |
a6c2ba28 | 189 | |
190 | /********************* v4l2 interface ******************************************/ | |
191 | ||
a6c2ba28 | 192 | /* |
3acf2809 | 193 | * em28xx_config() |
a6c2ba28 | 194 | * inits registers with sane defaults |
195 | */ | |
3acf2809 | 196 | static int em28xx_config(struct em28xx *dev) |
a6c2ba28 | 197 | { |
198 | ||
199 | /* Sets I2C speed to 100 KHz */ | |
3acf2809 | 200 | em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); |
a6c2ba28 | 201 | |
202 | /* enable vbi capturing */ | |
3acf2809 | 203 | em28xx_audio_usb_mute(dev, 1); |
a6c2ba28 | 204 | dev->mute = 1; /* maybe not the right place... */ |
205 | dev->volume = 0x1f; | |
3acf2809 MCC |
206 | em28xx_audio_analog_set(dev); |
207 | em28xx_audio_analog_setup(dev); | |
208 | em28xx_outfmt_set_yuv422(dev); | |
209 | em28xx_colorlevels_set_default(dev); | |
210 | em28xx_compression_disable(dev); | |
a6c2ba28 | 211 | |
212 | return 0; | |
213 | } | |
214 | ||
215 | /* | |
3acf2809 | 216 | * em28xx_config_i2c() |
a6c2ba28 | 217 | * configure i2c attached devices |
218 | */ | |
943a4902 | 219 | static void em28xx_config_i2c(struct em28xx *dev) |
a6c2ba28 | 220 | { |
221 | struct v4l2_frequency f; | |
3acf2809 | 222 | struct video_decoder_init em28xx_vdi = {.data = NULL }; |
a6c2ba28 | 223 | |
224 | ||
225 | /* configure decoder */ | |
a38a7d4f | 226 | if(dev->model == EM2820_BOARD_MSI_VOX_USB_2){ |
3acf2809 MCC |
227 | em28xx_vdi.data=saa7114_i2c_init; |
228 | em28xx_vdi.len=sizeof(saa7114_i2c_init); | |
a38a7d4f MR |
229 | } |
230 | ||
231 | ||
3acf2809 MCC |
232 | em28xx_i2c_call_clients(dev, DECODER_INIT, &em28xx_vdi); |
233 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &dev->ctl_input); | |
234 | /* em28xx_i2c_call_clients(dev,DECODER_SET_PICTURE, &dev->vpic); */ | |
235 | /* em28xx_i2c_call_clients(dev,DECODER_SET_NORM,&dev->tvnorm->id); */ | |
236 | /* em28xx_i2c_call_clients(dev,DECODER_ENABLE_OUTPUT,&output); */ | |
237 | /* em28xx_i2c_call_clients(dev,DECODER_DUMP, NULL); */ | |
a6c2ba28 | 238 | |
239 | /* configure tuner */ | |
240 | f.tuner = 0; | |
241 | f.type = V4L2_TUNER_ANALOG_TV; | |
242 | f.frequency = 9076; /* FIXME:remove magic number */ | |
243 | dev->ctl_freq = f.frequency; | |
3acf2809 | 244 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); |
a6c2ba28 | 245 | |
246 | /* configure tda9887 */ | |
247 | ||
a6c2ba28 | 248 | |
3acf2809 | 249 | /* em28xx_i2c_call_clients(dev,VIDIOC_S_STD,&dev->tvnorm->id); */ |
a6c2ba28 | 250 | } |
251 | ||
252 | /* | |
3acf2809 | 253 | * em28xx_empty_framequeues() |
a6c2ba28 | 254 | * prepare queues for incoming and outgoing frames |
255 | */ | |
3acf2809 | 256 | static void em28xx_empty_framequeues(struct em28xx *dev) |
a6c2ba28 | 257 | { |
258 | u32 i; | |
259 | ||
260 | INIT_LIST_HEAD(&dev->inqueue); | |
261 | INIT_LIST_HEAD(&dev->outqueue); | |
262 | ||
3acf2809 | 263 | for (i = 0; i < EM28XX_NUM_FRAMES; i++) { |
a6c2ba28 | 264 | dev->frame[i].state = F_UNUSED; |
265 | dev->frame[i].buf.bytesused = 0; | |
266 | } | |
267 | } | |
268 | ||
eac94356 MCC |
269 | static void video_mux(struct em28xx *dev, int index) |
270 | { | |
271 | int input, ainput; | |
272 | ||
273 | input = INPUT(index)->vmux; | |
274 | dev->ctl_input = index; | |
275 | dev->ctl_ainput = INPUT(index)->amux; | |
276 | ||
277 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &input); | |
278 | ||
279 | ||
280 | em28xx_videodbg("Setting input index=%d, vmux=%d, amux=%d\n",index,input,dev->ctl_ainput); | |
281 | ||
282 | if (dev->has_msp34xx) { | |
283 | em28xx_i2c_call_clients(dev, VIDIOC_S_AUDIO, &dev->ctl_ainput); | |
284 | ainput = EM28XX_AUDIO_SRC_TUNER; | |
285 | em28xx_audio_source(dev, ainput); | |
286 | } else { | |
287 | switch (dev->ctl_ainput) { | |
288 | case 0: | |
289 | ainput = EM28XX_AUDIO_SRC_TUNER; | |
290 | break; | |
291 | default: | |
292 | ainput = EM28XX_AUDIO_SRC_LINE; | |
293 | } | |
294 | em28xx_audio_source(dev, ainput); | |
295 | } | |
296 | } | |
297 | ||
a6c2ba28 | 298 | /* |
3acf2809 | 299 | * em28xx_v4l2_open() |
a6c2ba28 | 300 | * inits the device and starts isoc transfer |
301 | */ | |
3acf2809 | 302 | static int em28xx_v4l2_open(struct inode *inode, struct file *filp) |
a6c2ba28 | 303 | { |
a6c2ba28 | 304 | int minor = iminor(inode); |
a6c2ba28 | 305 | int errCode = 0; |
3acf2809 | 306 | struct em28xx *h,*dev = NULL; |
9c75541f MR |
307 | struct list_head *list; |
308 | ||
3acf2809 MCC |
309 | list_for_each(list,&em28xx_devlist) { |
310 | h = list_entry(list, struct em28xx, devlist); | |
9c75541f MR |
311 | if (h->vdev->minor == minor) { |
312 | dev = h; | |
313 | } | |
314 | } | |
315 | ||
316 | filp->private_data=dev; | |
317 | ||
a6c2ba28 | 318 | |
eac94356 | 319 | em28xx_videodbg("users=%d\n", dev->users); |
a6c2ba28 | 320 | |
3acf2809 | 321 | if (!down_read_trylock(&em28xx_disconnect)) |
a6c2ba28 | 322 | return -ERESTARTSYS; |
323 | ||
324 | if (dev->users) { | |
3acf2809 MCC |
325 | em28xx_warn("this driver can be opened only once\n"); |
326 | up_read(&em28xx_disconnect); | |
a6c2ba28 | 327 | return -EBUSY; |
328 | } | |
329 | ||
330 | /* if(dev->vbi_dev->minor == minor){ | |
331 | dev->type=V4L2_BUF_TYPE_VBI_CAPTURE; | |
332 | }*/ | |
333 | if (dev->vdev->minor == minor) { | |
334 | dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
335 | } | |
336 | ||
337 | init_MUTEX(&dev->fileop_lock); /* to 1 == available */ | |
338 | spin_lock_init(&dev->queue_lock); | |
339 | init_waitqueue_head(&dev->wait_frame); | |
340 | init_waitqueue_head(&dev->wait_stream); | |
341 | ||
342 | down(&dev->lock); | |
343 | ||
3acf2809 | 344 | em28xx_set_alternate(dev); |
a6c2ba28 | 345 | |
346 | dev->width = norm_maxw(dev); | |
347 | dev->height = norm_maxh(dev); | |
348 | dev->frame_size = dev->width * dev->height * 2; | |
349 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
350 | dev->bytesperline = dev->width * 2; | |
351 | dev->hscale = 0; | |
352 | dev->vscale = 0; | |
353 | ||
3acf2809 MCC |
354 | em28xx_capture_start(dev, 1); |
355 | em28xx_resolution_set(dev); | |
a6c2ba28 | 356 | |
357 | /* start the transfer */ | |
3acf2809 | 358 | errCode = em28xx_init_isoc(dev); |
a6c2ba28 | 359 | if (errCode) |
360 | goto err; | |
361 | ||
362 | dev->users++; | |
363 | filp->private_data = dev; | |
364 | dev->io = IO_NONE; | |
365 | dev->stream = STREAM_OFF; | |
366 | dev->num_frames = 0; | |
367 | ||
368 | /* prepare queues */ | |
3acf2809 | 369 | em28xx_empty_framequeues(dev); |
a6c2ba28 | 370 | |
371 | dev->state |= DEV_INITIALIZED; | |
372 | ||
eac94356 MCC |
373 | video_mux(dev, 0); |
374 | ||
a6c2ba28 | 375 | err: |
376 | up(&dev->lock); | |
3acf2809 | 377 | up_read(&em28xx_disconnect); |
a6c2ba28 | 378 | return errCode; |
379 | } | |
380 | ||
381 | /* | |
3acf2809 | 382 | * em28xx_realease_resources() |
a6c2ba28 | 383 | * unregisters the v4l2,i2c and usb devices |
384 | * called when the device gets disconected or at module unload | |
385 | */ | |
3acf2809 | 386 | static void em28xx_release_resources(struct em28xx *dev) |
a6c2ba28 | 387 | { |
3acf2809 | 388 | down(&em28xx_sysfs_lock); |
a6c2ba28 | 389 | |
3acf2809 | 390 | em28xx_info("V4L2 device /dev/video%d deregistered\n", |
a6c2ba28 | 391 | dev->vdev->minor); |
9c75541f | 392 | list_del(&dev->devlist); |
a6c2ba28 | 393 | video_unregister_device(dev->vdev); |
394 | /* video_unregister_device(dev->vbi_dev); */ | |
3acf2809 | 395 | em28xx_i2c_unregister(dev); |
a6c2ba28 | 396 | usb_put_dev(dev->udev); |
3acf2809 | 397 | up(&em28xx_sysfs_lock); |
a6c2ba28 | 398 | } |
399 | ||
400 | /* | |
3acf2809 | 401 | * em28xx_v4l2_close() |
a6c2ba28 | 402 | * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls |
403 | */ | |
3acf2809 | 404 | static int em28xx_v4l2_close(struct inode *inode, struct file *filp) |
a6c2ba28 | 405 | { |
a6c2ba28 | 406 | int errCode; |
3acf2809 | 407 | struct em28xx *dev=filp->private_data; |
a6c2ba28 | 408 | |
eac94356 | 409 | em28xx_videodbg("users=%d\n", dev->users); |
a6c2ba28 | 410 | |
411 | down(&dev->lock); | |
412 | ||
3acf2809 | 413 | em28xx_uninit_isoc(dev); |
a6c2ba28 | 414 | |
3acf2809 | 415 | em28xx_release_buffers(dev); |
a6c2ba28 | 416 | |
417 | /* the device is already disconnect, free the remaining resources */ | |
418 | if (dev->state & DEV_DISCONNECTED) { | |
3acf2809 | 419 | em28xx_release_resources(dev); |
a6c2ba28 | 420 | up(&dev->lock); |
421 | kfree(dev); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | /* set alternate 0 */ | |
426 | dev->alt = 0; | |
eac94356 | 427 | em28xx_videodbg("setting alternate 0\n"); |
a6c2ba28 | 428 | errCode = usb_set_interface(dev->udev, 0, 0); |
429 | if (errCode < 0) { | |
3acf2809 | 430 | em28xx_errdev ("cannot change alternate number to 0 (error=%i)\n", |
a6c2ba28 | 431 | errCode); |
432 | } | |
433 | ||
434 | dev->users--; | |
435 | wake_up_interruptible_nr(&dev->open, 1); | |
436 | up(&dev->lock); | |
437 | return 0; | |
438 | } | |
439 | ||
440 | /* | |
3acf2809 | 441 | * em28xx_v4l2_read() |
a6c2ba28 | 442 | * will allocate buffers when called for the first time |
443 | */ | |
444 | static ssize_t | |
3acf2809 | 445 | em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count, |
a6c2ba28 | 446 | loff_t * f_pos) |
447 | { | |
3acf2809 | 448 | struct em28xx_frame_t *f, *i; |
a6c2ba28 | 449 | unsigned long lock_flags; |
450 | int ret = 0; | |
3acf2809 | 451 | struct em28xx *dev = filp->private_data; |
a6c2ba28 | 452 | |
453 | if (down_interruptible(&dev->fileop_lock)) | |
454 | return -ERESTARTSYS; | |
455 | ||
456 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 457 | em28xx_videodbg("device not present\n"); |
a6c2ba28 | 458 | up(&dev->fileop_lock); |
459 | return -ENODEV; | |
460 | } | |
461 | ||
462 | if (dev->state & DEV_MISCONFIGURED) { | |
eac94356 | 463 | em28xx_videodbg("device misconfigured; close and open it again\n"); |
a6c2ba28 | 464 | up(&dev->fileop_lock); |
465 | return -EIO; | |
466 | } | |
467 | ||
468 | if (dev->io == IO_MMAP) { | |
3acf2809 | 469 | em28xx_videodbg ("IO method is set to mmap; close and open" |
eac94356 | 470 | " the device again to choose the read method\n"); |
a6c2ba28 | 471 | up(&dev->fileop_lock); |
472 | return -EINVAL; | |
473 | } | |
474 | ||
475 | if (dev->io == IO_NONE) { | |
3acf2809 MCC |
476 | if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) { |
477 | em28xx_errdev("read failed, not enough memory\n"); | |
a6c2ba28 | 478 | up(&dev->fileop_lock); |
479 | return -ENOMEM; | |
480 | } | |
481 | dev->io = IO_READ; | |
482 | dev->stream = STREAM_ON; | |
3acf2809 | 483 | em28xx_queue_unusedframes(dev); |
a6c2ba28 | 484 | } |
485 | ||
486 | if (!count) { | |
487 | up(&dev->fileop_lock); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | if (list_empty(&dev->outqueue)) { | |
492 | if (filp->f_flags & O_NONBLOCK) { | |
493 | up(&dev->fileop_lock); | |
494 | return -EAGAIN; | |
495 | } | |
496 | ret = wait_event_interruptible | |
497 | (dev->wait_frame, | |
498 | (!list_empty(&dev->outqueue)) || | |
499 | (dev->state & DEV_DISCONNECTED)); | |
500 | if (ret) { | |
501 | up(&dev->fileop_lock); | |
502 | return ret; | |
503 | } | |
504 | if (dev->state & DEV_DISCONNECTED) { | |
505 | up(&dev->fileop_lock); | |
506 | return -ENODEV; | |
507 | } | |
508 | } | |
509 | ||
3acf2809 | 510 | f = list_entry(dev->outqueue.prev, struct em28xx_frame_t, frame); |
a6c2ba28 | 511 | |
512 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
513 | list_for_each_entry(i, &dev->outqueue, frame) | |
514 | i->state = F_UNUSED; | |
515 | INIT_LIST_HEAD(&dev->outqueue); | |
516 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
517 | ||
3acf2809 | 518 | em28xx_queue_unusedframes(dev); |
a6c2ba28 | 519 | |
520 | if (count > f->buf.length) | |
521 | count = f->buf.length; | |
522 | ||
523 | if (copy_to_user(buf, f->bufmem, count)) { | |
524 | up(&dev->fileop_lock); | |
525 | return -EFAULT; | |
526 | } | |
527 | *f_pos += count; | |
528 | ||
529 | up(&dev->fileop_lock); | |
530 | ||
531 | return count; | |
532 | } | |
533 | ||
534 | /* | |
3acf2809 | 535 | * em28xx_v4l2_poll() |
a6c2ba28 | 536 | * will allocate buffers when called for the first time |
537 | */ | |
3acf2809 | 538 | static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) |
a6c2ba28 | 539 | { |
a6c2ba28 | 540 | unsigned int mask = 0; |
3acf2809 | 541 | struct em28xx *dev = filp->private_data; |
a6c2ba28 | 542 | |
543 | if (down_interruptible(&dev->fileop_lock)) | |
544 | return POLLERR; | |
545 | ||
546 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 547 | em28xx_videodbg("device not present\n"); |
a6c2ba28 | 548 | } else if (dev->state & DEV_MISCONFIGURED) { |
eac94356 | 549 | em28xx_videodbg("device is misconfigured; close and open it again\n"); |
a6c2ba28 | 550 | } else { |
551 | if (dev->io == IO_NONE) { | |
3acf2809 MCC |
552 | if (!em28xx_request_buffers |
553 | (dev, EM28XX_NUM_READ_FRAMES)) { | |
554 | em28xx_warn | |
a6c2ba28 | 555 | ("poll() failed, not enough memory\n"); |
556 | } else { | |
557 | dev->io = IO_READ; | |
558 | dev->stream = STREAM_ON; | |
559 | } | |
560 | } | |
561 | ||
562 | if (dev->io == IO_READ) { | |
3acf2809 | 563 | em28xx_queue_unusedframes(dev); |
a6c2ba28 | 564 | poll_wait(filp, &dev->wait_frame, wait); |
565 | ||
566 | if (!list_empty(&dev->outqueue)) | |
567 | mask |= POLLIN | POLLRDNORM; | |
568 | ||
569 | up(&dev->fileop_lock); | |
570 | ||
571 | return mask; | |
572 | } | |
573 | } | |
574 | ||
575 | up(&dev->fileop_lock); | |
576 | return POLLERR; | |
577 | } | |
578 | ||
579 | /* | |
3acf2809 | 580 | * em28xx_vm_open() |
a6c2ba28 | 581 | */ |
3acf2809 | 582 | static void em28xx_vm_open(struct vm_area_struct *vma) |
a6c2ba28 | 583 | { |
3acf2809 | 584 | struct em28xx_frame_t *f = vma->vm_private_data; |
a6c2ba28 | 585 | f->vma_use_count++; |
586 | } | |
587 | ||
588 | /* | |
3acf2809 | 589 | * em28xx_vm_close() |
a6c2ba28 | 590 | */ |
3acf2809 | 591 | static void em28xx_vm_close(struct vm_area_struct *vma) |
a6c2ba28 | 592 | { |
593 | /* NOTE: buffers are not freed here */ | |
3acf2809 | 594 | struct em28xx_frame_t *f = vma->vm_private_data; |
a6c2ba28 | 595 | f->vma_use_count--; |
596 | } | |
597 | ||
3acf2809 MCC |
598 | static struct vm_operations_struct em28xx_vm_ops = { |
599 | .open = em28xx_vm_open, | |
600 | .close = em28xx_vm_close, | |
a6c2ba28 | 601 | }; |
602 | ||
603 | /* | |
3acf2809 | 604 | * em28xx_v4l2_mmap() |
a6c2ba28 | 605 | */ |
3acf2809 | 606 | static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) |
a6c2ba28 | 607 | { |
a6c2ba28 | 608 | unsigned long size = vma->vm_end - vma->vm_start, |
3639c861 SS |
609 | start = vma->vm_start; |
610 | void *pos; | |
a6c2ba28 | 611 | u32 i; |
9c75541f | 612 | |
3acf2809 | 613 | struct em28xx *dev = filp->private_data; |
9c75541f | 614 | |
a6c2ba28 | 615 | if (down_interruptible(&dev->fileop_lock)) |
616 | return -ERESTARTSYS; | |
617 | ||
618 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 619 | em28xx_videodbg("mmap: device not present\n"); |
a6c2ba28 | 620 | up(&dev->fileop_lock); |
621 | return -ENODEV; | |
622 | } | |
623 | ||
624 | if (dev->state & DEV_MISCONFIGURED) { | |
3acf2809 | 625 | em28xx_videodbg ("mmap: Device is misconfigured; close and " |
eac94356 | 626 | "open it again\n"); |
a6c2ba28 | 627 | up(&dev->fileop_lock); |
628 | return -EIO; | |
629 | } | |
630 | ||
631 | if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || | |
632 | size != PAGE_ALIGN(dev->frame[0].buf.length)) { | |
633 | up(&dev->fileop_lock); | |
634 | return -EINVAL; | |
635 | } | |
636 | ||
637 | for (i = 0; i < dev->num_frames; i++) { | |
638 | if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) | |
639 | break; | |
640 | } | |
641 | if (i == dev->num_frames) { | |
eac94356 | 642 | em28xx_videodbg("mmap: user supplied mapping address is out of range\n"); |
a6c2ba28 | 643 | up(&dev->fileop_lock); |
644 | return -EINVAL; | |
645 | } | |
646 | ||
647 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
648 | vma->vm_flags |= VM_IO; | |
649 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
650 | ||
3639c861 | 651 | pos = dev->frame[i].bufmem; |
a6c2ba28 | 652 | while (size > 0) { /* size is page-aligned */ |
3639c861 SS |
653 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
654 | em28xx_videodbg("mmap: vm_insert_page failed\n"); | |
a6c2ba28 | 655 | up(&dev->fileop_lock); |
656 | return -EAGAIN; | |
657 | } | |
658 | start += PAGE_SIZE; | |
659 | pos += PAGE_SIZE; | |
660 | size -= PAGE_SIZE; | |
661 | } | |
662 | ||
3acf2809 | 663 | vma->vm_ops = &em28xx_vm_ops; |
a6c2ba28 | 664 | vma->vm_private_data = &dev->frame[i]; |
665 | ||
3acf2809 | 666 | em28xx_vm_open(vma); |
a6c2ba28 | 667 | up(&dev->fileop_lock); |
668 | return 0; | |
669 | } | |
670 | ||
671 | /* | |
3acf2809 | 672 | * em28xx_get_ctrl() |
a6c2ba28 | 673 | * return the current saturation, brightness or contrast, mute state |
674 | */ | |
3acf2809 | 675 | static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) |
a6c2ba28 | 676 | { |
677 | s32 tmp; | |
678 | switch (ctrl->id) { | |
679 | case V4L2_CID_AUDIO_MUTE: | |
680 | ctrl->value = dev->mute; | |
681 | return 0; | |
682 | case V4L2_CID_AUDIO_VOLUME: | |
683 | ctrl->value = dev->volume; | |
684 | return 0; | |
685 | case V4L2_CID_BRIGHTNESS: | |
3acf2809 | 686 | if ((tmp = em28xx_brightness_get(dev)) < 0) |
a6c2ba28 | 687 | return -EIO; |
688 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
689 | return 0; | |
690 | case V4L2_CID_CONTRAST: | |
3acf2809 | 691 | if ((ctrl->value = em28xx_contrast_get(dev)) < 0) |
a6c2ba28 | 692 | return -EIO; |
693 | return 0; | |
694 | case V4L2_CID_SATURATION: | |
3acf2809 | 695 | if ((ctrl->value = em28xx_saturation_get(dev)) < 0) |
a6c2ba28 | 696 | return -EIO; |
697 | return 0; | |
698 | case V4L2_CID_RED_BALANCE: | |
3acf2809 | 699 | if ((tmp = em28xx_v_balance_get(dev)) < 0) |
a6c2ba28 | 700 | return -EIO; |
701 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
702 | return 0; | |
703 | case V4L2_CID_BLUE_BALANCE: | |
3acf2809 | 704 | if ((tmp = em28xx_u_balance_get(dev)) < 0) |
a6c2ba28 | 705 | return -EIO; |
706 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
707 | return 0; | |
708 | case V4L2_CID_GAMMA: | |
3acf2809 | 709 | if ((ctrl->value = em28xx_gamma_get(dev)) < 0) |
a6c2ba28 | 710 | return -EIO; |
711 | return 0; | |
712 | default: | |
713 | return -EINVAL; | |
714 | } | |
715 | } | |
716 | ||
717 | /* | |
3acf2809 | 718 | * em28xx_set_ctrl() |
a6c2ba28 | 719 | * mute or set new saturation, brightness or contrast |
720 | */ | |
3acf2809 | 721 | static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) |
a6c2ba28 | 722 | { |
723 | switch (ctrl->id) { | |
724 | case V4L2_CID_AUDIO_MUTE: | |
725 | if (ctrl->value != dev->mute) { | |
726 | dev->mute = ctrl->value; | |
3acf2809 MCC |
727 | em28xx_audio_usb_mute(dev, ctrl->value); |
728 | return em28xx_audio_analog_set(dev); | |
a6c2ba28 | 729 | } |
730 | return 0; | |
731 | case V4L2_CID_AUDIO_VOLUME: | |
732 | dev->volume = ctrl->value; | |
3acf2809 | 733 | return em28xx_audio_analog_set(dev); |
a6c2ba28 | 734 | case V4L2_CID_BRIGHTNESS: |
3acf2809 | 735 | return em28xx_brightness_set(dev, ctrl->value); |
a6c2ba28 | 736 | case V4L2_CID_CONTRAST: |
3acf2809 | 737 | return em28xx_contrast_set(dev, ctrl->value); |
a6c2ba28 | 738 | case V4L2_CID_SATURATION: |
3acf2809 | 739 | return em28xx_saturation_set(dev, ctrl->value); |
a6c2ba28 | 740 | case V4L2_CID_RED_BALANCE: |
3acf2809 | 741 | return em28xx_v_balance_set(dev, ctrl->value); |
a6c2ba28 | 742 | case V4L2_CID_BLUE_BALANCE: |
3acf2809 | 743 | return em28xx_u_balance_set(dev, ctrl->value); |
a6c2ba28 | 744 | case V4L2_CID_GAMMA: |
3acf2809 | 745 | return em28xx_gamma_set(dev, ctrl->value); |
a6c2ba28 | 746 | default: |
747 | return -EINVAL; | |
748 | } | |
749 | } | |
750 | ||
751 | /* | |
3acf2809 | 752 | * em28xx_stream_interrupt() |
a6c2ba28 | 753 | * stops streaming |
754 | */ | |
3acf2809 | 755 | static int em28xx_stream_interrupt(struct em28xx *dev) |
a6c2ba28 | 756 | { |
757 | int ret = 0; | |
758 | ||
759 | /* stop reading from the device */ | |
760 | ||
761 | dev->stream = STREAM_INTERRUPT; | |
762 | ret = wait_event_timeout(dev->wait_stream, | |
763 | (dev->stream == STREAM_OFF) || | |
764 | (dev->state & DEV_DISCONNECTED), | |
3acf2809 | 765 | EM28XX_URB_TIMEOUT); |
a6c2ba28 | 766 | if (dev->state & DEV_DISCONNECTED) |
767 | return -ENODEV; | |
768 | else if (ret) { | |
769 | dev->state |= DEV_MISCONFIGURED; | |
3acf2809 | 770 | em28xx_videodbg("device is misconfigured; close and " |
eac94356 | 771 | "open /dev/video%d again\n", dev->vdev->minor); |
a6c2ba28 | 772 | return ret; |
773 | } | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
3acf2809 | 778 | static int em28xx_set_norm(struct em28xx *dev, int width, int height) |
a6c2ba28 | 779 | { |
780 | unsigned int hscale, vscale; | |
781 | unsigned int maxh, maxw; | |
782 | ||
783 | maxw = norm_maxw(dev); | |
784 | maxh = norm_maxh(dev); | |
785 | ||
786 | /* width must even because of the YUYV format */ | |
787 | /* height must be even because of interlacing */ | |
788 | height &= 0xfffe; | |
789 | width &= 0xfffe; | |
790 | ||
791 | if (height < 32) | |
792 | height = 32; | |
793 | if (height > maxh) | |
794 | height = maxh; | |
795 | if (width < 48) | |
796 | width = 48; | |
797 | if (width > maxw) | |
798 | width = maxw; | |
799 | ||
800 | if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000) | |
801 | hscale = 0x3fff; | |
802 | width = (((unsigned long)maxw) << 12) / (hscale + 4096L); | |
803 | ||
804 | if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000) | |
805 | vscale = 0x3fff; | |
806 | height = (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
807 | ||
808 | /* set new image size */ | |
809 | dev->width = width; | |
810 | dev->height = height; | |
811 | dev->frame_size = dev->width * dev->height * 2; | |
812 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
813 | dev->bytesperline = dev->width * 2; | |
814 | dev->hscale = hscale; | |
815 | dev->vscale = vscale; | |
816 | ||
3acf2809 | 817 | em28xx_resolution_set(dev); |
a6c2ba28 | 818 | |
819 | return 0; | |
820 | } | |
821 | ||
a6c2ba28 | 822 | /* |
3acf2809 | 823 | * em28xx_v4l2_do_ioctl() |
a6c2ba28 | 824 | * This function is _not_ called directly, but from |
3acf2809 | 825 | * em28xx_v4l2_ioctl. Userspace |
a6c2ba28 | 826 | * copying is done already, arg is a kernel pointer. |
827 | */ | |
3acf2809 MCC |
828 | static int em28xx_do_ioctl(struct inode *inode, struct file *filp, |
829 | struct em28xx *dev, unsigned int cmd, void *arg, | |
a6c2ba28 | 830 | v4l2_kioctl driver_ioctl) |
831 | { | |
832 | int ret; | |
833 | ||
834 | switch (cmd) { | |
835 | /* ---------- tv norms ---------- */ | |
836 | case VIDIOC_ENUMSTD: | |
837 | { | |
838 | struct v4l2_standard *e = arg; | |
839 | unsigned int i; | |
840 | ||
841 | i = e->index; | |
842 | if (i >= TVNORMS) | |
843 | return -EINVAL; | |
844 | ret = v4l2_video_std_construct(e, tvnorms[e->index].id, | |
845 | tvnorms[e->index].name); | |
846 | e->index = i; | |
847 | if (ret < 0) | |
848 | return ret; | |
849 | return 0; | |
850 | } | |
851 | case VIDIOC_G_STD: | |
852 | { | |
853 | v4l2_std_id *id = arg; | |
854 | ||
855 | *id = dev->tvnorm->id; | |
856 | return 0; | |
857 | } | |
858 | case VIDIOC_S_STD: | |
859 | { | |
860 | v4l2_std_id *id = arg; | |
861 | unsigned int i; | |
862 | ||
863 | for (i = 0; i < TVNORMS; i++) | |
864 | if (*id == tvnorms[i].id) | |
865 | break; | |
866 | if (i == TVNORMS) | |
867 | for (i = 0; i < TVNORMS; i++) | |
868 | if (*id & tvnorms[i].id) | |
869 | break; | |
870 | if (i == TVNORMS) | |
871 | return -EINVAL; | |
872 | ||
873 | down(&dev->lock); | |
874 | dev->tvnorm = &tvnorms[i]; | |
875 | ||
3acf2809 | 876 | em28xx_set_norm(dev, dev->width, dev->height); |
a6c2ba28 | 877 | |
878 | /* | |
879 | dev->width=norm_maxw(dev); | |
880 | dev->height=norm_maxh(dev); | |
881 | dev->frame_size=dev->width*dev->height*2; | |
882 | dev->field_size=dev->frame_size>>1; | |
883 | dev->bytesperline=dev->width*2; | |
884 | dev->hscale=0; | |
885 | dev->vscale=0; | |
886 | ||
3acf2809 | 887 | em28xx_resolution_set(dev); |
a6c2ba28 | 888 | */ |
889 | /* | |
3acf2809 MCC |
890 | em28xx_uninit_isoc(dev); |
891 | em28xx_set_alternate(dev); | |
892 | em28xx_capture_start(dev, 1); | |
893 | em28xx_resolution_set(dev); | |
894 | em28xx_init_isoc(dev); | |
a6c2ba28 | 895 | */ |
3acf2809 | 896 | em28xx_i2c_call_clients(dev, DECODER_SET_NORM, |
a6c2ba28 | 897 | &tvnorms[i].mode); |
3acf2809 | 898 | em28xx_i2c_call_clients(dev, VIDIOC_S_STD, |
a6c2ba28 | 899 | &dev->tvnorm->id); |
900 | ||
901 | up(&dev->lock); | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
906 | /* ------ input switching ---------- */ | |
907 | case VIDIOC_ENUMINPUT: | |
908 | { | |
909 | struct v4l2_input *i = arg; | |
910 | unsigned int n; | |
911 | static const char *iname[] = { | |
3acf2809 MCC |
912 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", |
913 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", | |
914 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", | |
915 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", | |
916 | [EM28XX_VMUX_SVIDEO] = "S-Video", | |
917 | [EM28XX_VMUX_TELEVISION] = "Television", | |
918 | [EM28XX_VMUX_CABLE] = "Cable TV", | |
919 | [EM28XX_VMUX_DVB] = "DVB", | |
920 | [EM28XX_VMUX_DEBUG] = "for debug only", | |
a6c2ba28 | 921 | }; |
922 | ||
923 | n = i->index; | |
3acf2809 | 924 | if (n >= MAX_EM28XX_INPUT) |
a6c2ba28 | 925 | return -EINVAL; |
926 | if (0 == INPUT(n)->type) | |
927 | return -EINVAL; | |
928 | memset(i, 0, sizeof(*i)); | |
929 | i->index = n; | |
930 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
931 | strcpy(i->name, iname[INPUT(n)->type]); | |
3acf2809 MCC |
932 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
933 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) | |
a6c2ba28 | 934 | i->type = V4L2_INPUT_TYPE_TUNER; |
935 | for (n = 0; n < ARRAY_SIZE(tvnorms); n++) | |
936 | i->std |= tvnorms[n].id; | |
937 | return 0; | |
938 | } | |
939 | ||
940 | case VIDIOC_G_INPUT: | |
941 | { | |
942 | int *i = arg; | |
943 | *i = dev->ctl_input; | |
944 | ||
945 | return 0; | |
946 | } | |
947 | ||
948 | case VIDIOC_S_INPUT: | |
949 | { | |
950 | int *index = arg; | |
951 | ||
3acf2809 | 952 | if (*index >= MAX_EM28XX_INPUT) |
a6c2ba28 | 953 | return -EINVAL; |
954 | if (0 == INPUT(*index)->type) | |
955 | return -EINVAL; | |
956 | ||
957 | down(&dev->lock); | |
958 | video_mux(dev, *index); | |
959 | up(&dev->lock); | |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
964 | case VIDIOC_G_AUDIO: | |
965 | { | |
966 | struct v4l2_audio *a = arg; | |
967 | unsigned int index = a->index; | |
968 | ||
969 | if (a->index > 1) | |
970 | return -EINVAL; | |
971 | memset(a, 0, sizeof(*a)); | |
972 | index = dev->ctl_ainput; | |
973 | ||
974 | if (index == 0) { | |
975 | strcpy(a->name, "Television"); | |
976 | } else { | |
977 | strcpy(a->name, "Line In"); | |
978 | } | |
979 | a->capability = V4L2_AUDCAP_STEREO; | |
980 | a->index = index; | |
981 | return 0; | |
982 | } | |
983 | ||
984 | case VIDIOC_S_AUDIO: | |
985 | { | |
986 | struct v4l2_audio *a = arg; | |
987 | if (a->index != dev->ctl_ainput) | |
988 | return -EINVAL; | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | /* --- controls ---------------------------------------------- */ | |
994 | case VIDIOC_QUERYCTRL: | |
995 | { | |
996 | struct v4l2_queryctrl *qc = arg; | |
997 | u8 i, n; | |
3acf2809 | 998 | n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]); |
a6c2ba28 | 999 | for (i = 0; i < n; i++) |
3acf2809 MCC |
1000 | if (qc->id && qc->id == em28xx_qctrl[i].id) { |
1001 | memcpy(qc, &(em28xx_qctrl[i]), | |
a6c2ba28 | 1002 | sizeof(*qc)); |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | return -EINVAL; | |
1007 | } | |
1008 | ||
1009 | case VIDIOC_G_CTRL: | |
1010 | { | |
1011 | struct v4l2_control *ctrl = arg; | |
1012 | ||
1013 | ||
3acf2809 | 1014 | return em28xx_get_ctrl(dev, ctrl); |
a6c2ba28 | 1015 | } |
1016 | ||
1017 | case VIDIOC_S_CTRL_OLD: /* ??? */ | |
1018 | case VIDIOC_S_CTRL: | |
1019 | { | |
1020 | struct v4l2_control *ctrl = arg; | |
1021 | u8 i, n; | |
1022 | ||
1023 | ||
3acf2809 | 1024 | n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]); |
a6c2ba28 | 1025 | for (i = 0; i < n; i++) |
3acf2809 | 1026 | if (ctrl->id == em28xx_qctrl[i].id) { |
a6c2ba28 | 1027 | if (ctrl->value < |
3acf2809 | 1028 | em28xx_qctrl[i].minimum |
a6c2ba28 | 1029 | || ctrl->value > |
3acf2809 | 1030 | em28xx_qctrl[i].maximum) |
a6c2ba28 | 1031 | return -ERANGE; |
1032 | ||
3acf2809 | 1033 | return em28xx_set_ctrl(dev, ctrl); |
a6c2ba28 | 1034 | } |
1035 | return -EINVAL; | |
1036 | } | |
1037 | ||
1038 | /* --- tuner ioctls ------------------------------------------ */ | |
1039 | case VIDIOC_G_TUNER: | |
1040 | { | |
1041 | struct v4l2_tuner *t = arg; | |
1042 | int status = 0; | |
1043 | ||
1044 | if (0 != t->index) | |
1045 | return -EINVAL; | |
1046 | ||
1047 | memset(t, 0, sizeof(*t)); | |
1048 | strcpy(t->name, "Tuner"); | |
1049 | t->type = V4L2_TUNER_ANALOG_TV; | |
1050 | t->capability = V4L2_TUNER_CAP_NORM; | |
1051 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ | |
1052 | /* t->signal = 0xffff;*/ | |
3acf2809 | 1053 | /* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/ |
a6c2ba28 | 1054 | /* No way to get signal strength? */ |
1055 | down(&dev->lock); | |
3acf2809 | 1056 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
a6c2ba28 | 1057 | &status); |
1058 | up(&dev->lock); | |
1059 | t->signal = | |
1060 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; | |
1061 | ||
eac94356 | 1062 | em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x\n", t->signal, |
a6c2ba28 | 1063 | t->afc); |
1064 | return 0; | |
1065 | } | |
1066 | case VIDIOC_S_TUNER: | |
1067 | { | |
1068 | struct v4l2_tuner *t = arg; | |
1069 | int status = 0; | |
1070 | ||
1071 | if (0 != t->index) | |
1072 | return -EINVAL; | |
1073 | memset(t, 0, sizeof(*t)); | |
1074 | strcpy(t->name, "Tuner"); | |
1075 | t->type = V4L2_TUNER_ANALOG_TV; | |
1076 | t->capability = V4L2_TUNER_CAP_NORM; | |
1077 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ | |
1078 | /* t->signal = 0xffff; */ | |
1079 | /* No way to get signal strength? */ | |
1080 | down(&dev->lock); | |
3acf2809 | 1081 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
a6c2ba28 | 1082 | &status); |
1083 | up(&dev->lock); | |
1084 | t->signal = | |
1085 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; | |
1086 | ||
3acf2809 | 1087 | em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", |
a6c2ba28 | 1088 | t->signal, t->afc); |
1089 | return 0; | |
1090 | } | |
1091 | case VIDIOC_G_FREQUENCY: | |
1092 | { | |
1093 | struct v4l2_frequency *f = arg; | |
1094 | ||
1095 | memset(f, 0, sizeof(*f)); | |
1096 | f->type = V4L2_TUNER_ANALOG_TV; | |
1097 | f->frequency = dev->ctl_freq; | |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | case VIDIOC_S_FREQUENCY: | |
1102 | { | |
1103 | struct v4l2_frequency *f = arg; | |
1104 | ||
1105 | if (0 != f->tuner) | |
1106 | return -EINVAL; | |
1107 | ||
1108 | if (V4L2_TUNER_ANALOG_TV != f->type) | |
1109 | return -EINVAL; | |
1110 | ||
1111 | down(&dev->lock); | |
1112 | dev->ctl_freq = f->frequency; | |
3acf2809 | 1113 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); |
a6c2ba28 | 1114 | up(&dev->lock); |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | case VIDIOC_CROPCAP: | |
1119 | { | |
1120 | struct v4l2_cropcap *cc = arg; | |
1121 | ||
1122 | if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
596d92d5 | 1123 | return -EINVAL; |
a6c2ba28 | 1124 | cc->bounds.left = 0; |
1125 | cc->bounds.top = 0; | |
1126 | cc->bounds.width = dev->width; | |
1127 | cc->bounds.height = dev->height; | |
1128 | cc->defrect = cc->bounds; | |
1129 | cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ | |
1130 | cc->pixelaspect.denominator = 59; | |
1131 | return 0; | |
1132 | } | |
1133 | case VIDIOC_STREAMON: | |
1134 | { | |
1135 | int *type = arg; | |
1136 | ||
1137 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1138 | || dev->io != IO_MMAP) | |
1139 | return -EINVAL; | |
1140 | ||
1141 | if (list_empty(&dev->inqueue)) | |
1142 | return -EINVAL; | |
1143 | ||
1144 | dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ | |
1145 | ||
eac94356 | 1146 | em28xx_videodbg("VIDIOC_STREAMON: starting stream\n"); |
a6c2ba28 | 1147 | |
1148 | return 0; | |
1149 | } | |
1150 | case VIDIOC_STREAMOFF: | |
1151 | { | |
1152 | int *type = arg; | |
1153 | int ret; | |
1154 | ||
1155 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1156 | || dev->io != IO_MMAP) | |
1157 | return -EINVAL; | |
1158 | ||
1159 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1160 | em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream\n"); |
3acf2809 | 1161 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 | 1162 | return ret; |
1163 | } | |
3acf2809 | 1164 | em28xx_empty_framequeues(dev); |
a6c2ba28 | 1165 | |
1166 | return 0; | |
1167 | } | |
1168 | default: | |
1169 | return v4l_compat_translate_ioctl(inode, filp, cmd, arg, | |
1170 | driver_ioctl); | |
1171 | } | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | /* | |
3acf2809 | 1176 | * em28xx_v4l2_do_ioctl() |
a6c2ba28 | 1177 | * This function is _not_ called directly, but from |
3acf2809 | 1178 | * em28xx_v4l2_ioctl. Userspace |
a6c2ba28 | 1179 | * copying is done already, arg is a kernel pointer. |
1180 | */ | |
3acf2809 | 1181 | static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp, |
a6c2ba28 | 1182 | unsigned int cmd, void *arg) |
1183 | { | |
3acf2809 | 1184 | struct em28xx *dev = filp->private_data; |
a6c2ba28 | 1185 | |
1186 | if (!dev) | |
1187 | return -ENODEV; | |
1188 | ||
1189 | if (video_debug > 1) | |
3acf2809 | 1190 | em28xx_print_ioctl(dev->name,cmd); |
a6c2ba28 | 1191 | |
1192 | switch (cmd) { | |
1193 | ||
1194 | /* --- capabilities ------------------------------------------ */ | |
1195 | case VIDIOC_QUERYCAP: | |
1196 | { | |
1197 | struct v4l2_capability *cap = arg; | |
1198 | ||
1199 | memset(cap, 0, sizeof(*cap)); | |
3acf2809 MCC |
1200 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); |
1201 | strlcpy(cap->card, em28xx_boards[dev->model].name, | |
a6c2ba28 | 1202 | sizeof(cap->card)); |
1203 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, | |
1204 | sizeof(cap->bus_info)); | |
3acf2809 | 1205 | cap->version = EM28XX_VERSION_CODE; |
a6c2ba28 | 1206 | cap->capabilities = |
1207 | V4L2_CAP_VIDEO_CAPTURE | | |
1208 | V4L2_CAP_AUDIO | | |
1209 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
1210 | if (dev->has_tuner) | |
1211 | cap->capabilities |= V4L2_CAP_TUNER; | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | /* --- capture ioctls ---------------------------------------- */ | |
1216 | case VIDIOC_ENUM_FMT: | |
1217 | { | |
1218 | struct v4l2_fmtdesc *fmtd = arg; | |
1219 | ||
1220 | if (fmtd->index != 0) | |
1221 | return -EINVAL; | |
1222 | memset(fmtd, 0, sizeof(*fmtd)); | |
1223 | fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1224 | strcpy(fmtd->description, "Packed YUY2"); | |
1225 | fmtd->pixelformat = V4L2_PIX_FMT_YUYV; | |
1226 | memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); | |
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | case VIDIOC_G_FMT: | |
1231 | { | |
1232 | struct v4l2_format *format = arg; | |
1233 | ||
eac94356 | 1234 | em28xx_videodbg("VIDIOC_G_FMT: type=%s\n", |
a6c2ba28 | 1235 | format->type == |
1236 | V4L2_BUF_TYPE_VIDEO_CAPTURE ? | |
1237 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == | |
1238 | V4L2_BUF_TYPE_VBI_CAPTURE ? | |
1239 | "V4L2_BUF_TYPE_VBI_CAPTURE " : | |
1240 | "not supported"); | |
1241 | ||
1242 | if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1243 | return -EINVAL; | |
1244 | ||
1245 | format->fmt.pix.width = dev->width; | |
1246 | format->fmt.pix.height = dev->height; | |
1247 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
1248 | format->fmt.pix.bytesperline = dev->bytesperline; | |
1249 | format->fmt.pix.sizeimage = dev->frame_size; | |
1250 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
1251 | format->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ | |
1252 | ||
eac94356 | 1253 | em28xx_videodbg("VIDIOC_G_FMT: %dx%d\n", dev->width, |
a6c2ba28 | 1254 | dev->height); |
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | case VIDIOC_TRY_FMT: | |
1259 | case VIDIOC_S_FMT: | |
1260 | { | |
1261 | struct v4l2_format *format = arg; | |
1262 | u32 i; | |
1263 | int ret = 0; | |
1264 | int width = format->fmt.pix.width; | |
1265 | int height = format->fmt.pix.height; | |
1266 | unsigned int hscale, vscale; | |
1267 | unsigned int maxh, maxw; | |
1268 | ||
1269 | maxw = norm_maxw(dev); | |
1270 | maxh = norm_maxh(dev); | |
1271 | ||
1272 | /* int both_fields; */ | |
1273 | ||
eac94356 | 1274 | em28xx_videodbg("%s: type=%s\n", |
a6c2ba28 | 1275 | cmd == |
1276 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1277 | "VIDIOC_S_FMT", | |
1278 | format->type == | |
1279 | V4L2_BUF_TYPE_VIDEO_CAPTURE ? | |
1280 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == | |
1281 | V4L2_BUF_TYPE_VBI_CAPTURE ? | |
1282 | "V4L2_BUF_TYPE_VBI_CAPTURE " : | |
1283 | "not supported"); | |
1284 | ||
1285 | if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1286 | return -EINVAL; | |
1287 | ||
eac94356 | 1288 | em28xx_videodbg("%s: requested %dx%d\n", |
a6c2ba28 | 1289 | cmd == |
1290 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1291 | "VIDIOC_S_FMT", format->fmt.pix.width, | |
1292 | format->fmt.pix.height); | |
1293 | ||
1294 | /* FIXME: Move some code away from here */ | |
1295 | /* width must even because of the YUYV format */ | |
1296 | /* height must be even because of interlacing */ | |
1297 | height &= 0xfffe; | |
1298 | width &= 0xfffe; | |
1299 | ||
1300 | if (height < 32) | |
1301 | height = 32; | |
1302 | if (height > maxh) | |
1303 | height = maxh; | |
1304 | if (width < 48) | |
1305 | width = 48; | |
1306 | if (width > maxw) | |
1307 | width = maxw; | |
1308 | ||
74458e6c | 1309 | if(dev->is_em2800){ |
52c02fcd | 1310 | /* the em2800 can only scale down to 50% */ |
74458e6c SS |
1311 | if(height % (maxh / 2)) |
1312 | height=maxh; | |
1313 | if(width % (maxw / 2)) | |
1314 | width=maxw; | |
52c02fcd SS |
1315 | /* according to empiatech support */ |
1316 | /* the MaxPacketSize is to small to support */ | |
1317 | /* framesizes larger than 640x480 @ 30 fps */ | |
1318 | /* or 640x576 @ 25 fps. As this would cut */ | |
1319 | /* of a part of the image we prefer */ | |
1320 | /* 360x576 or 360x480 for now */ | |
74458e6c SS |
1321 | if(width == maxw && height == maxh) |
1322 | width /= 2; | |
1323 | } | |
1324 | ||
a6c2ba28 | 1325 | if ((hscale = |
1326 | (((unsigned long)maxw) << 12) / width - 4096L) >= | |
1327 | 0x4000) | |
1328 | hscale = 0x3fff; | |
1329 | width = | |
1330 | (((unsigned long)maxw) << 12) / (hscale + 4096L); | |
1331 | ||
1332 | if ((vscale = | |
1333 | (((unsigned long)maxh) << 12) / height - 4096L) >= | |
1334 | 0x4000) | |
1335 | vscale = 0x3fff; | |
1336 | height = | |
1337 | (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
1338 | ||
1339 | format->fmt.pix.width = width; | |
1340 | format->fmt.pix.height = height; | |
1341 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
1342 | format->fmt.pix.bytesperline = width * 2; | |
1343 | format->fmt.pix.sizeimage = width * 2 * height; | |
1344 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
1345 | format->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
1346 | ||
eac94356 | 1347 | em28xx_videodbg("%s: returned %dx%d (%d, %d)\n", |
a6c2ba28 | 1348 | cmd == |
1349 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1350 | "VIDIOC_S_FMT", format->fmt.pix.width, | |
1351 | format->fmt.pix.height, hscale, vscale); | |
1352 | ||
1353 | if (cmd == VIDIOC_TRY_FMT) | |
1354 | return 0; | |
1355 | ||
1356 | for (i = 0; i < dev->num_frames; i++) | |
1357 | if (dev->frame[i].vma_use_count) { | |
3acf2809 | 1358 | em28xx_videodbg("VIDIOC_S_FMT failed. " |
eac94356 | 1359 | "Unmap the buffers first.\n"); |
a6c2ba28 | 1360 | return -EINVAL; |
1361 | } | |
1362 | ||
1363 | /* stop io in case it is already in progress */ | |
1364 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1365 | em28xx_videodbg("VIDIOC_SET_FMT: interupting stream\n"); |
3acf2809 | 1366 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 | 1367 | return ret; |
1368 | } | |
1369 | ||
3acf2809 | 1370 | em28xx_release_buffers(dev); |
a6c2ba28 | 1371 | dev->io = IO_NONE; |
1372 | ||
1373 | /* set new image size */ | |
1374 | dev->width = width; | |
1375 | dev->height = height; | |
1376 | dev->frame_size = dev->width * dev->height * 2; | |
1377 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
1378 | dev->bytesperline = dev->width * 2; | |
1379 | dev->hscale = hscale; | |
1380 | dev->vscale = vscale; | |
1381 | /* dev->both_fileds = both_fileds; */ | |
3acf2809 MCC |
1382 | em28xx_uninit_isoc(dev); |
1383 | em28xx_set_alternate(dev); | |
1384 | em28xx_capture_start(dev, 1); | |
1385 | em28xx_resolution_set(dev); | |
1386 | em28xx_init_isoc(dev); | |
a6c2ba28 | 1387 | |
1388 | return 0; | |
1389 | } | |
1390 | ||
1391 | /* --- streaming capture ------------------------------------- */ | |
1392 | case VIDIOC_REQBUFS: | |
1393 | { | |
1394 | struct v4l2_requestbuffers *rb = arg; | |
1395 | u32 i; | |
1396 | int ret; | |
1397 | ||
1398 | if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1399 | rb->memory != V4L2_MEMORY_MMAP) | |
1400 | return -EINVAL; | |
1401 | ||
1402 | if (dev->io == IO_READ) { | |
3acf2809 | 1403 | em28xx_videodbg ("method is set to read;" |
a6c2ba28 | 1404 | " close and open the device again to" |
eac94356 | 1405 | " choose the mmap I/O method\n"); |
a6c2ba28 | 1406 | return -EINVAL; |
1407 | } | |
1408 | ||
1409 | for (i = 0; i < dev->num_frames; i++) | |
1410 | if (dev->frame[i].vma_use_count) { | |
eac94356 | 1411 | em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped\n"); |
a6c2ba28 | 1412 | return -EINVAL; |
1413 | } | |
1414 | ||
1415 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1416 | em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n"); |
3acf2809 | 1417 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 | 1418 | return ret; |
1419 | } | |
1420 | ||
3acf2809 | 1421 | em28xx_empty_framequeues(dev); |
a6c2ba28 | 1422 | |
3acf2809 | 1423 | em28xx_release_buffers(dev); |
a6c2ba28 | 1424 | if (rb->count) |
1425 | rb->count = | |
3acf2809 | 1426 | em28xx_request_buffers(dev, rb->count); |
a6c2ba28 | 1427 | |
1428 | dev->frame_current = NULL; | |
1429 | ||
eac94356 | 1430 | em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i\n", |
a6c2ba28 | 1431 | rb->count); |
1432 | dev->io = rb->count ? IO_MMAP : IO_NONE; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | case VIDIOC_QUERYBUF: | |
1437 | { | |
1438 | struct v4l2_buffer *b = arg; | |
1439 | ||
1440 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1441 | b->index >= dev->num_frames || dev->io != IO_MMAP) | |
1442 | return -EINVAL; | |
1443 | ||
1444 | memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); | |
1445 | ||
1446 | if (dev->frame[b->index].vma_use_count) { | |
1447 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
1448 | } | |
1449 | if (dev->frame[b->index].state == F_DONE) | |
1450 | b->flags |= V4L2_BUF_FLAG_DONE; | |
1451 | else if (dev->frame[b->index].state != F_UNUSED) | |
1452 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
1453 | return 0; | |
1454 | } | |
1455 | case VIDIOC_QBUF: | |
1456 | { | |
1457 | struct v4l2_buffer *b = arg; | |
1458 | unsigned long lock_flags; | |
1459 | ||
1460 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1461 | b->index >= dev->num_frames || dev->io != IO_MMAP) { | |
1462 | return -EINVAL; | |
1463 | } | |
1464 | ||
1465 | if (dev->frame[b->index].state != F_UNUSED) { | |
1466 | return -EAGAIN; | |
1467 | } | |
1468 | dev->frame[b->index].state = F_QUEUED; | |
1469 | ||
1470 | /* add frame to fifo */ | |
1471 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
1472 | list_add_tail(&dev->frame[b->index].frame, | |
1473 | &dev->inqueue); | |
1474 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
1475 | ||
1476 | return 0; | |
1477 | } | |
1478 | case VIDIOC_DQBUF: | |
1479 | { | |
1480 | struct v4l2_buffer *b = arg; | |
3acf2809 | 1481 | struct em28xx_frame_t *f; |
a6c2ba28 | 1482 | unsigned long lock_flags; |
1483 | int ret = 0; | |
1484 | ||
1485 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1486 | || dev->io != IO_MMAP) | |
1487 | return -EINVAL; | |
1488 | ||
1489 | if (list_empty(&dev->outqueue)) { | |
1490 | if (dev->stream == STREAM_OFF) | |
1491 | return -EINVAL; | |
1492 | if (filp->f_flags & O_NONBLOCK) | |
1493 | return -EAGAIN; | |
1494 | ret = wait_event_interruptible | |
1495 | (dev->wait_frame, | |
1496 | (!list_empty(&dev->outqueue)) || | |
1497 | (dev->state & DEV_DISCONNECTED)); | |
1498 | if (ret) | |
1499 | return ret; | |
1500 | if (dev->state & DEV_DISCONNECTED) | |
1501 | return -ENODEV; | |
1502 | } | |
1503 | ||
1504 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
1505 | f = list_entry(dev->outqueue.next, | |
3acf2809 | 1506 | struct em28xx_frame_t, frame); |
a6c2ba28 | 1507 | list_del(dev->outqueue.next); |
1508 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
1509 | ||
1510 | f->state = F_UNUSED; | |
1511 | memcpy(b, &f->buf, sizeof(*b)); | |
1512 | ||
1513 | if (f->vma_use_count) | |
1514 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
1515 | ||
1516 | return 0; | |
1517 | } | |
1518 | default: | |
3acf2809 MCC |
1519 | return em28xx_do_ioctl(inode, filp, dev, cmd, arg, |
1520 | em28xx_video_do_ioctl); | |
a6c2ba28 | 1521 | } |
1522 | return 0; | |
1523 | } | |
1524 | ||
1525 | /* | |
3acf2809 MCC |
1526 | * em28xx_v4l2_ioctl() |
1527 | * handle v4l2 ioctl the main action happens in em28xx_v4l2_do_ioctl() | |
a6c2ba28 | 1528 | */ |
3acf2809 | 1529 | static int em28xx_v4l2_ioctl(struct inode *inode, struct file *filp, |
a6c2ba28 | 1530 | unsigned int cmd, unsigned long arg) |
1531 | { | |
a6c2ba28 | 1532 | int ret = 0; |
3acf2809 | 1533 | struct em28xx *dev = filp->private_data; |
a6c2ba28 | 1534 | |
1535 | if (down_interruptible(&dev->fileop_lock)) | |
1536 | return -ERESTARTSYS; | |
1537 | ||
1538 | if (dev->state & DEV_DISCONNECTED) { | |
3acf2809 | 1539 | em28xx_errdev("v4l2 ioctl: device not present\n"); |
a6c2ba28 | 1540 | up(&dev->fileop_lock); |
1541 | return -ENODEV; | |
1542 | } | |
1543 | ||
1544 | if (dev->state & DEV_MISCONFIGURED) { | |
3acf2809 | 1545 | em28xx_errdev |
a6c2ba28 | 1546 | ("v4l2 ioctl: device is misconfigured; close and open it again\n"); |
1547 | up(&dev->fileop_lock); | |
1548 | return -EIO; | |
1549 | } | |
1550 | ||
3acf2809 | 1551 | ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl); |
a6c2ba28 | 1552 | |
1553 | up(&dev->fileop_lock); | |
1554 | ||
1555 | return ret; | |
1556 | } | |
1557 | ||
3acf2809 | 1558 | static struct file_operations em28xx_v4l_fops = { |
a6c2ba28 | 1559 | .owner = THIS_MODULE, |
3acf2809 MCC |
1560 | .open = em28xx_v4l2_open, |
1561 | .release = em28xx_v4l2_close, | |
1562 | .ioctl = em28xx_v4l2_ioctl, | |
1563 | .read = em28xx_v4l2_read, | |
1564 | .poll = em28xx_v4l2_poll, | |
1565 | .mmap = em28xx_v4l2_mmap, | |
a6c2ba28 | 1566 | .llseek = no_llseek, |
1567 | }; | |
1568 | ||
1569 | /******************************** usb interface *****************************************/ | |
1570 | ||
1571 | /* | |
3acf2809 | 1572 | * em28xx_init_dev() |
a6c2ba28 | 1573 | * allocates and inits the device structs, registers i2c bus and v4l device |
1574 | */ | |
3acf2809 | 1575 | static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, |
a6c2ba28 | 1576 | int minor, int model) |
1577 | { | |
3acf2809 | 1578 | struct em28xx *dev = *devhandle; |
a6c2ba28 | 1579 | int retval = -ENOMEM; |
1580 | int errCode, i; | |
1581 | unsigned int maxh, maxw; | |
a6c2ba28 | 1582 | |
a6c2ba28 | 1583 | dev->udev = udev; |
1584 | dev->model = model; | |
1585 | init_MUTEX(&dev->lock); | |
1586 | init_waitqueue_head(&dev->open); | |
1587 | ||
3acf2809 MCC |
1588 | dev->em28xx_write_regs = em28xx_write_regs; |
1589 | dev->em28xx_read_reg = em28xx_read_reg; | |
1590 | dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; | |
1591 | dev->em28xx_write_regs_req = em28xx_write_regs_req; | |
1592 | dev->em28xx_read_reg_req = em28xx_read_reg_req; | |
1593 | dev->is_em2800 = em28xx_boards[model].is_em2800; | |
1594 | dev->has_tuner = em28xx_boards[model].has_tuner; | |
1595 | dev->has_msp34xx = em28xx_boards[model].has_msp34xx; | |
1596 | dev->tda9887_conf = em28xx_boards[model].tda9887_conf; | |
1597 | dev->decoder = em28xx_boards[model].decoder; | |
a6c2ba28 | 1598 | |
1599 | if (tuner >= 0) | |
1600 | dev->tuner_type = tuner; | |
1601 | else | |
3acf2809 | 1602 | dev->tuner_type = em28xx_boards[model].tuner_type; |
a6c2ba28 | 1603 | |
3acf2809 | 1604 | dev->video_inputs = em28xx_boards[model].vchannels; |
a6c2ba28 | 1605 | |
1606 | for (i = 0; i < TVNORMS; i++) | |
3acf2809 | 1607 | if (em28xx_boards[model].norm == tvnorms[i].mode) |
a6c2ba28 | 1608 | break; |
1609 | if (i == TVNORMS) | |
1610 | i = 0; | |
1611 | ||
1612 | dev->tvnorm = &tvnorms[i]; /* set default norm */ | |
1613 | ||
3acf2809 | 1614 | em28xx_videodbg("tvnorm=%s\n", dev->tvnorm->name); |
a6c2ba28 | 1615 | |
1616 | maxw = norm_maxw(dev); | |
1617 | maxh = norm_maxh(dev); | |
1618 | ||
1619 | /* set default image size */ | |
1620 | dev->width = maxw; | |
1621 | dev->height = maxh; | |
3acf2809 | 1622 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; |
a6c2ba28 | 1623 | dev->field_size = dev->width * dev->height; |
1624 | dev->frame_size = | |
1625 | dev->interlaced ? dev->field_size << 1 : dev->field_size; | |
1626 | dev->bytesperline = dev->width * 2; | |
1627 | dev->hscale = 0; | |
1628 | dev->vscale = 0; | |
1629 | dev->ctl_input = 2; | |
1630 | ||
1631 | /* setup video picture settings for saa7113h */ | |
1632 | memset(&dev->vpic, 0, sizeof(dev->vpic)); | |
1633 | dev->vpic.colour = 128 << 8; | |
1634 | dev->vpic.hue = 128 << 8; | |
1635 | dev->vpic.brightness = 128 << 8; | |
1636 | dev->vpic.contrast = 192 << 8; | |
1637 | dev->vpic.whiteness = 128 << 8; /* This one isn't used */ | |
1638 | dev->vpic.depth = 16; | |
1639 | dev->vpic.palette = VIDEO_PALETTE_YUV422; | |
1640 | ||
a6c2ba28 | 1641 | #ifdef CONFIG_MODULES |
1642 | /* request some modules */ | |
3acf2809 | 1643 | if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114) |
91cad0f2 | 1644 | request_module("saa711x"); |
3acf2809 | 1645 | if (dev->decoder == EM28XX_TVP5150) |
a6c2ba28 | 1646 | request_module("tvp5150"); |
1647 | if (dev->has_tuner) | |
1648 | request_module("tuner"); | |
1649 | if (dev->tda9887_conf) | |
1650 | request_module("tda9887"); | |
1651 | #endif | |
3acf2809 | 1652 | errCode = em28xx_config(dev); |
a6c2ba28 | 1653 | if (errCode) { |
3acf2809 | 1654 | em28xx_errdev("error configuring device\n"); |
a6c2ba28 | 1655 | kfree(dev); |
1656 | return -ENOMEM; | |
1657 | } | |
1658 | ||
1659 | down(&dev->lock); | |
1660 | /* register i2c bus */ | |
3acf2809 | 1661 | em28xx_i2c_register(dev); |
a6c2ba28 | 1662 | |
1663 | /* Do board specific init and eeprom reading */ | |
3acf2809 | 1664 | em28xx_card_setup(dev); |
a6c2ba28 | 1665 | |
1666 | /* configure the device */ | |
3acf2809 | 1667 | em28xx_config_i2c(dev); |
a6c2ba28 | 1668 | |
1669 | up(&dev->lock); | |
1670 | ||
3acf2809 | 1671 | errCode = em28xx_config(dev); |
a6c2ba28 | 1672 | |
1673 | #ifdef CONFIG_MODULES | |
1674 | if (dev->has_msp34xx) | |
1675 | request_module("msp3400"); | |
1676 | #endif | |
1677 | /* allocate and fill v4l2 device struct */ | |
1678 | dev->vdev = video_device_alloc(); | |
1679 | if (NULL == dev->vdev) { | |
3acf2809 | 1680 | em28xx_errdev("cannot allocate video_device.\n"); |
a6c2ba28 | 1681 | kfree(dev); |
1682 | return -ENOMEM; | |
1683 | } | |
1684 | ||
a6c2ba28 | 1685 | dev->vdev->type = VID_TYPE_CAPTURE; |
1686 | if (dev->has_tuner) | |
1687 | dev->vdev->type |= VID_TYPE_TUNER; | |
1688 | dev->vdev->hardware = 0; | |
3acf2809 | 1689 | dev->vdev->fops = &em28xx_v4l_fops; |
a6c2ba28 | 1690 | dev->vdev->minor = -1; |
1691 | dev->vdev->dev = &dev->udev->dev; | |
1692 | dev->vdev->release = video_device_release; | |
1693 | snprintf(dev->vdev->name, sizeof(dev->vdev->name), "%s", | |
3acf2809 MCC |
1694 | "em28xx video"); |
1695 | list_add_tail(&dev->devlist,&em28xx_devlist); | |
a6c2ba28 | 1696 | |
1697 | /* register v4l2 device */ | |
1698 | down(&dev->lock); | |
1699 | if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1))) { | |
3acf2809 | 1700 | em28xx_errdev("unable to register video device (error=%i).\n", |
a6c2ba28 | 1701 | retval); |
1702 | up(&dev->lock); | |
9c75541f | 1703 | list_del(&dev->devlist); |
a6c2ba28 | 1704 | video_device_release(dev->vdev); |
1705 | kfree(dev); | |
1706 | return -ENODEV; | |
1707 | } | |
1708 | if (dev->has_msp34xx) { | |
1709 | /* Send a reset to other chips via gpio */ | |
3acf2809 | 1710 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); |
a6c2ba28 | 1711 | udelay(2500); |
3acf2809 | 1712 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); |
a6c2ba28 | 1713 | udelay(2500); |
1714 | ||
1715 | } | |
1716 | video_mux(dev, 0); | |
1717 | ||
1718 | up(&dev->lock); | |
1719 | ||
3acf2809 | 1720 | em28xx_info("V4L2 device registered as /dev/video%d\n", |
a6c2ba28 | 1721 | dev->vdev->minor); |
1722 | ||
a6c2ba28 | 1723 | return 0; |
1724 | } | |
1725 | ||
1726 | /* | |
3acf2809 | 1727 | * em28xx_usb_probe() |
a6c2ba28 | 1728 | * checks for supported devices |
1729 | */ | |
3acf2809 | 1730 | static int em28xx_usb_probe(struct usb_interface *interface, |
a6c2ba28 | 1731 | const struct usb_device_id *id) |
1732 | { | |
1733 | const struct usb_endpoint_descriptor *endpoint; | |
1734 | struct usb_device *udev; | |
9d4d9c05 | 1735 | struct usb_interface *uif; |
3acf2809 | 1736 | struct em28xx *dev = NULL; |
a6c2ba28 | 1737 | int retval = -ENODEV; |
d5e52653 | 1738 | int model,i,nr,ifnum; |
a6c2ba28 | 1739 | |
1740 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
d5e52653 MCC |
1741 | ifnum = interface->altsetting[0].desc.bInterfaceNumber; |
1742 | ||
a6c2ba28 | 1743 | |
596d92d5 | 1744 | /* Don't register audio interfaces */ |
91cad0f2 | 1745 | if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { |
3acf2809 | 1746 | em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
1747 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
1748 | ifnum, | |
1749 | interface->altsetting[0].desc.bInterfaceClass); | |
596d92d5 | 1750 | return -ENODEV; |
91cad0f2 MCC |
1751 | } |
1752 | ||
3acf2809 | 1753 | em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
1754 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
1755 | ifnum, | |
1756 | interface->altsetting[0].desc.bInterfaceClass); | |
596d92d5 | 1757 | |
d5e52653 MCC |
1758 | endpoint = &interface->cur_altsetting->endpoint[1].desc; |
1759 | ||
a6c2ba28 | 1760 | /* check if the the device has the iso in endpoint at the correct place */ |
1761 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != | |
1762 | USB_ENDPOINT_XFER_ISOC) { | |
3acf2809 | 1763 | em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); |
a6c2ba28 | 1764 | return -ENODEV; |
1765 | } | |
1766 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { | |
3acf2809 | 1767 | em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); |
a6c2ba28 | 1768 | return -ENODEV; |
1769 | } | |
1770 | ||
596d92d5 MCC |
1771 | model=id->driver_info; |
1772 | nr=interface->minor; | |
1773 | ||
3acf2809 | 1774 | if (nr>EM28XX_MAXBOARDS) { |
9d4d9c05 | 1775 | printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS); |
596d92d5 MCC |
1776 | return -ENOMEM; |
1777 | } | |
1778 | ||
1779 | /* allocate memory for our device state and initialize it */ | |
1780 | dev = kmalloc(sizeof(*dev), GFP_KERNEL); | |
1781 | if (dev == NULL) { | |
3acf2809 | 1782 | em28xx_err(DRIVER_NAME ": out of memory!\n"); |
596d92d5 MCC |
1783 | return -ENOMEM; |
1784 | } | |
1785 | memset(dev, 0, sizeof(*dev)); | |
1786 | ||
9d4d9c05 MCC |
1787 | /* compute alternate max packet sizes */ |
1788 | uif = udev->actconfig->interface[0]; | |
1789 | ||
1790 | dev->num_alt=uif->num_altsetting; | |
1791 | printk(DRIVER_NAME ": Alternate settings: %i\n",dev->num_alt); | |
1792 | // dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* | |
1793 | dev->alt_max_pkt_size = kmalloc(32* | |
1794 | dev->num_alt,GFP_KERNEL); | |
1795 | if (dev->alt_max_pkt_size == NULL) { | |
1796 | em28xx_err(DRIVER_NAME ": out of memory!\n"); | |
1797 | return -ENOMEM; | |
1798 | } | |
1799 | ||
1800 | for (i = 0; i < dev->num_alt ; i++) { | |
1801 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
1802 | wMaxPacketSize); | |
1803 | dev->alt_max_pkt_size[i] = | |
1804 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
1805 | printk(DRIVER_NAME ": Alternate setting %i, max size= %i\n",i, | |
1806 | dev->alt_max_pkt_size[i]); | |
1807 | } | |
1808 | ||
3acf2809 | 1809 | snprintf(dev->name, 29, "em28xx #%d", nr); |
596d92d5 | 1810 | |
3acf2809 | 1811 | if ((card[nr]>=0)&&(card[nr]<em28xx_bcount)) |
596d92d5 MCC |
1812 | model=card[nr]; |
1813 | ||
1814 | if ((model==EM2800_BOARD_UNKNOWN)||(model==EM2820_BOARD_UNKNOWN)) { | |
1815 | printk( "%s: Your board has no eeprom inside it and thus can't\n" | |
1816 | "%s: be autodetected. Please pass card=<n> insmod option to\n" | |
1817 | "%s: workaround that. Redirect complaints to the vendor of\n" | |
1818 | "%s: the TV card. Best regards,\n" | |
1819 | "%s: -- tux\n", | |
1820 | dev->name,dev->name,dev->name,dev->name,dev->name); | |
1821 | printk("%s: Here is a list of valid choices for the card=<n> insmod option:\n", | |
1822 | dev->name); | |
3acf2809 | 1823 | for (i = 0; i < em28xx_bcount; i++) { |
596d92d5 | 1824 | printk("%s: card=%d -> %s\n", |
3acf2809 | 1825 | dev->name, i, em28xx_boards[i].name); |
596d92d5 MCC |
1826 | } |
1827 | } | |
1828 | ||
a6c2ba28 | 1829 | /* allocate device struct */ |
3acf2809 | 1830 | retval = em28xx_init_dev(&dev, udev, nr, model); |
a6c2ba28 | 1831 | if (retval) |
1832 | return retval; | |
1833 | ||
3acf2809 | 1834 | em28xx_info("Found %s\n", em28xx_boards[model].name); |
a6c2ba28 | 1835 | |
1836 | /* save our data pointer in this interface device */ | |
1837 | usb_set_intfdata(interface, dev); | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | /* | |
3acf2809 | 1842 | * em28xx_usb_disconnect() |
a6c2ba28 | 1843 | * called when the device gets diconencted |
1844 | * video device will be unregistered on v4l2_close in case it is still open | |
1845 | */ | |
3acf2809 | 1846 | static void em28xx_usb_disconnect(struct usb_interface *interface) |
a6c2ba28 | 1847 | { |
3acf2809 | 1848 | struct em28xx *dev = usb_get_intfdata(interface); |
a6c2ba28 | 1849 | usb_set_intfdata(interface, NULL); |
1850 | ||
1851 | if (!dev) | |
1852 | return; | |
1853 | ||
3acf2809 | 1854 | down_write(&em28xx_disconnect); |
a6c2ba28 | 1855 | |
1856 | down(&dev->lock); | |
1857 | ||
3acf2809 | 1858 | em28xx_info("disconnecting %s\n", dev->vdev->name); |
a6c2ba28 | 1859 | |
1860 | wake_up_interruptible_all(&dev->open); | |
1861 | ||
1862 | if (dev->users) { | |
3acf2809 | 1863 | em28xx_warn |
a6c2ba28 | 1864 | ("device /dev/video%d is open! Deregistration and memory " |
1865 | "deallocation are deferred on close.\n", dev->vdev->minor); | |
1866 | dev->state |= DEV_MISCONFIGURED; | |
3acf2809 | 1867 | em28xx_uninit_isoc(dev); |
a6c2ba28 | 1868 | dev->state |= DEV_DISCONNECTED; |
1869 | wake_up_interruptible(&dev->wait_frame); | |
1870 | wake_up_interruptible(&dev->wait_stream); | |
1871 | } else { | |
1872 | dev->state |= DEV_DISCONNECTED; | |
3acf2809 | 1873 | em28xx_release_resources(dev); |
a6c2ba28 | 1874 | } |
1875 | ||
1876 | up(&dev->lock); | |
1877 | ||
9d4d9c05 MCC |
1878 | if (!dev->users) { |
1879 | kfree(dev->alt_max_pkt_size); | |
a6c2ba28 | 1880 | kfree(dev); |
9d4d9c05 | 1881 | } |
a6c2ba28 | 1882 | |
3acf2809 | 1883 | up_write(&em28xx_disconnect); |
a6c2ba28 | 1884 | } |
1885 | ||
3acf2809 | 1886 | static struct usb_driver em28xx_usb_driver = { |
3acf2809 MCC |
1887 | .name = "em28xx", |
1888 | .probe = em28xx_usb_probe, | |
1889 | .disconnect = em28xx_usb_disconnect, | |
1890 | .id_table = em28xx_id_table, | |
a6c2ba28 | 1891 | }; |
1892 | ||
3acf2809 | 1893 | static int __init em28xx_module_init(void) |
a6c2ba28 | 1894 | { |
1895 | int result; | |
1896 | ||
1897 | printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", | |
3acf2809 MCC |
1898 | (EM28XX_VERSION_CODE >> 16) & 0xff, |
1899 | (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); | |
a6c2ba28 | 1900 | #ifdef SNAPSHOT |
1901 | printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", | |
1902 | SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); | |
1903 | #endif | |
1904 | ||
1905 | /* register this driver with the USB subsystem */ | |
3acf2809 | 1906 | result = usb_register(&em28xx_usb_driver); |
a6c2ba28 | 1907 | if (result) |
3acf2809 | 1908 | em28xx_err(DRIVER_NAME |
a6c2ba28 | 1909 | " usb_register failed. Error number %d.\n", result); |
1910 | ||
1911 | return result; | |
1912 | } | |
1913 | ||
3acf2809 | 1914 | static void __exit em28xx_module_exit(void) |
a6c2ba28 | 1915 | { |
1916 | /* deregister this driver with the USB subsystem */ | |
3acf2809 | 1917 | usb_deregister(&em28xx_usb_driver); |
a6c2ba28 | 1918 | } |
1919 | ||
3acf2809 MCC |
1920 | module_init(em28xx_module_init); |
1921 | module_exit(em28xx_module_exit); |