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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 | |
439090d7 MCC |
9 | Some parts based on SN9C10x PC Camera Controllers GPL driver made |
10 | by Luca Risolia <luca.risolia@studio.unibo.it> | |
11 | ||
a6c2ba28 AM |
12 | This program is free software; you can redistribute it and/or modify |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #include <linux/init.h> | |
28 | #include <linux/list.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/kernel.h> | |
e5589bef | 31 | #include <linux/bitmap.h> |
a6c2ba28 | 32 | #include <linux/usb.h> |
a6c2ba28 | 33 | #include <linux/i2c.h> |
b296fc60 | 34 | #include <linux/version.h> |
a6c2ba28 | 35 | #include <linux/video_decoder.h> |
1e4baed3 | 36 | #include <linux/mutex.h> |
a6c2ba28 | 37 | |
f7abcd38 | 38 | #include "em28xx.h" |
d5e52653 | 39 | #include <media/tuner.h> |
c0477ad9 | 40 | #include <media/v4l2-common.h> |
a6c2ba28 | 41 | |
f7abcd38 MCC |
42 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
43 | "Markus Rechberger <mrechberger@gmail.com>, " \ | |
44 | "Mauro Carvalho Chehab <mchehab@brturbo.com.br>, " \ | |
45 | "Sascha Sommer <saschasommer@freenet.de>" | |
a6c2ba28 | 46 | |
f7abcd38 MCC |
47 | #define DRIVER_NAME "em28xx" |
48 | #define DRIVER_DESC "Empia em28xx based USB video device driver" | |
3acf2809 | 49 | #define EM28XX_VERSION_CODE KERNEL_VERSION(0, 0, 1) |
a6c2ba28 | 50 | |
3acf2809 | 51 | #define em28xx_videodbg(fmt, arg...) do {\ |
4ac97914 MCC |
52 | if (video_debug) \ |
53 | printk(KERN_INFO "%s %s :"fmt, \ | |
f85c657f | 54 | dev->name, __FUNCTION__ , ##arg); } while (0) |
a6c2ba28 AM |
55 | |
56 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
57 | MODULE_DESCRIPTION(DRIVER_DESC); | |
58 | MODULE_LICENSE("GPL"); | |
59 | ||
3acf2809 | 60 | static LIST_HEAD(em28xx_devlist); |
9c75541f | 61 | |
9d4d9c05 | 62 | static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
e5589bef MCC |
63 | static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
64 | static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; | |
596d92d5 | 65 | module_param_array(card, int, NULL, 0444); |
e5589bef MCC |
66 | module_param_array(video_nr, int, NULL, 0444); |
67 | module_param_array(vbi_nr, int, NULL, 0444); | |
596d92d5 | 68 | MODULE_PARM_DESC(card,"card type"); |
e5589bef MCC |
69 | MODULE_PARM_DESC(video_nr,"video device numbers"); |
70 | MODULE_PARM_DESC(vbi_nr,"vbi device numbers"); | |
596d92d5 | 71 | |
a6c2ba28 AM |
72 | static int tuner = -1; |
73 | module_param(tuner, int, 0444); | |
74 | MODULE_PARM_DESC(tuner, "tuner type"); | |
75 | ||
76 | static unsigned int video_debug = 0; | |
77 | module_param(video_debug,int,0644); | |
78 | MODULE_PARM_DESC(video_debug,"enable debug messages [video]"); | |
79 | ||
e5589bef MCC |
80 | /* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */ |
81 | static unsigned long em28xx_devused; | |
82 | ||
a6c2ba28 | 83 | /* supported tv norms */ |
3acf2809 | 84 | static struct em28xx_tvnorm tvnorms[] = { |
a6c2ba28 AM |
85 | { |
86 | .name = "PAL", | |
87 | .id = V4L2_STD_PAL, | |
88 | .mode = VIDEO_MODE_PAL, | |
89 | }, { | |
90 | .name = "NTSC", | |
91 | .id = V4L2_STD_NTSC, | |
92 | .mode = VIDEO_MODE_NTSC, | |
93 | }, { | |
94 | .name = "SECAM", | |
95 | .id = V4L2_STD_SECAM, | |
96 | .mode = VIDEO_MODE_SECAM, | |
97 | }, { | |
98 | .name = "PAL-M", | |
99 | .id = V4L2_STD_PAL_M, | |
100 | .mode = VIDEO_MODE_PAL, | |
101 | } | |
102 | }; | |
103 | ||
a38a7d4f MR |
104 | static const unsigned char saa7114_i2c_init[] = { |
105 | 0x00,0x00,0x01,0x08,0x02,0xc4,0x03,0x30,0x04,0x90,0x05,0x90,0x06,0xeb,0x07,0xe0, | |
106 | 0x08,0x88,0x09,0x40,0x0a,0x80,0x0b,0x44,0x0c,0x40,0x0d,0x00,0x0e,0x81,0x0f,0x2a, | |
107 | 0x10,0x06,0x11,0x00,0x12,0xc8,0x13,0x80,0x14,0x00,0x15,0x11,0x16,0x01,0x17,0x42, | |
108 | 0x18,0x40,0x19,0x80,0x40,0x00,0x41,0xff,0x42,0xff,0x43,0xff,0x44,0xff,0x45,0xff, | |
109 | 0x46,0xff,0x47,0xff,0x48,0xff,0x49,0xff,0x4a,0xff,0x4b,0xff,0x4c,0xff,0x4d,0xff, | |
110 | 0x4e,0xff,0x4f,0xff,0x50,0xff,0x51,0xff,0x52,0xff,0x53,0xff,0x54,0x5f,0x55,0xff, | |
111 | 0x56,0xff,0x57,0xff,0x58,0x00,0x59,0x47,0x5a,0x03,0x5b,0x03,0x5d,0x3e,0x5e,0x00, | |
112 | 0x80,0x1c,0x83,0x01,0x84,0xa5,0x85,0x10,0x86,0x45,0x87,0x41,0x88,0xf0,0x88,0x00, | |
113 | 0x88,0xf0,0x90,0x00,0x91,0x08,0x92,0x00,0x93,0x80,0x94,0x08,0x95,0x00,0x96,0xc0, | |
114 | 0x97,0x02,0x98,0x13,0x99,0x00,0x9a,0x38,0x9b,0x01,0x9c,0x80,0x9d,0x02,0x9e,0x06, | |
115 | 0x9f,0x01,0xa0,0x01,0xa1,0x00,0xa2,0x00,0xa4,0x80,0xa5,0x36,0xa6,0x36,0xa8,0x67, | |
116 | 0xa9,0x04,0xaa,0x00,0xac,0x33,0xad,0x02,0xae,0x00,0xb0,0xcd,0xb1,0x04,0xb2,0xcd, | |
117 | 0xb3,0x04,0xb4,0x01,0xb8,0x00,0xb9,0x00,0xba,0x00,0xbb,0x00,0xbc,0x00,0xbd,0x00, | |
118 | 0xbe,0x00,0xbf,0x00 | |
119 | }; | |
120 | ||
a6c2ba28 AM |
121 | #define TVNORMS ARRAY_SIZE(tvnorms) |
122 | ||
123 | /* supported controls */ | |
c0477ad9 | 124 | /* Common to all boards */ |
3acf2809 | 125 | static struct v4l2_queryctrl em28xx_qctrl[] = { |
c0477ad9 MCC |
126 | { |
127 | .id = V4L2_CID_AUDIO_VOLUME, | |
128 | .type = V4L2_CTRL_TYPE_INTEGER, | |
129 | .name = "Volume", | |
130 | .minimum = 0x0, | |
131 | .maximum = 0x1f, | |
132 | .step = 0x1, | |
133 | .default_value = 0x1f, | |
134 | .flags = 0, | |
135 | },{ | |
136 | .id = V4L2_CID_AUDIO_MUTE, | |
137 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
138 | .name = "Mute", | |
139 | .minimum = 0, | |
140 | .maximum = 1, | |
141 | .step = 1, | |
142 | .default_value = 1, | |
143 | .flags = 0, | |
144 | } | |
145 | }; | |
146 | ||
147 | /* FIXME: These are specific to saa711x - should be moved to its code */ | |
148 | static struct v4l2_queryctrl saa711x_qctrl[] = { | |
a6c2ba28 AM |
149 | { |
150 | .id = V4L2_CID_BRIGHTNESS, | |
151 | .type = V4L2_CTRL_TYPE_INTEGER, | |
152 | .name = "Brightness", | |
153 | .minimum = -128, | |
154 | .maximum = 127, | |
155 | .step = 1, | |
156 | .default_value = 0, | |
157 | .flags = 0, | |
158 | },{ | |
159 | .id = V4L2_CID_CONTRAST, | |
160 | .type = V4L2_CTRL_TYPE_INTEGER, | |
161 | .name = "Contrast", | |
162 | .minimum = 0x0, | |
163 | .maximum = 0x1f, | |
164 | .step = 0x1, | |
165 | .default_value = 0x10, | |
166 | .flags = 0, | |
167 | },{ | |
168 | .id = V4L2_CID_SATURATION, | |
169 | .type = V4L2_CTRL_TYPE_INTEGER, | |
170 | .name = "Saturation", | |
171 | .minimum = 0x0, | |
172 | .maximum = 0x1f, | |
173 | .step = 0x1, | |
174 | .default_value = 0x10, | |
175 | .flags = 0, | |
a6c2ba28 AM |
176 | },{ |
177 | .id = V4L2_CID_RED_BALANCE, | |
178 | .type = V4L2_CTRL_TYPE_INTEGER, | |
179 | .name = "Red chroma balance", | |
180 | .minimum = -128, | |
181 | .maximum = 127, | |
182 | .step = 1, | |
183 | .default_value = 0, | |
184 | .flags = 0, | |
185 | },{ | |
186 | .id = V4L2_CID_BLUE_BALANCE, | |
187 | .type = V4L2_CTRL_TYPE_INTEGER, | |
188 | .name = "Blue chroma balance", | |
189 | .minimum = -128, | |
190 | .maximum = 127, | |
191 | .step = 1, | |
192 | .default_value = 0, | |
193 | .flags = 0, | |
194 | },{ | |
195 | .id = V4L2_CID_GAMMA, | |
196 | .type = V4L2_CTRL_TYPE_INTEGER, | |
197 | .name = "Gamma", | |
198 | .minimum = 0x0, | |
199 | .maximum = 0x3f, | |
200 | .step = 0x1, | |
201 | .default_value = 0x20, | |
202 | .flags = 0, | |
c0477ad9 | 203 | } |
a6c2ba28 AM |
204 | }; |
205 | ||
3acf2809 | 206 | static struct usb_driver em28xx_usb_driver; |
a6c2ba28 | 207 | |
1e4baed3 | 208 | static DEFINE_MUTEX(em28xx_sysfs_lock); |
3acf2809 | 209 | static DECLARE_RWSEM(em28xx_disconnect); |
a6c2ba28 AM |
210 | |
211 | /********************* v4l2 interface ******************************************/ | |
212 | ||
a6c2ba28 | 213 | /* |
3acf2809 | 214 | * em28xx_config() |
a6c2ba28 AM |
215 | * inits registers with sane defaults |
216 | */ | |
3acf2809 | 217 | static int em28xx_config(struct em28xx *dev) |
a6c2ba28 AM |
218 | { |
219 | ||
220 | /* Sets I2C speed to 100 KHz */ | |
3acf2809 | 221 | em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); |
a6c2ba28 AM |
222 | |
223 | /* enable vbi capturing */ | |
e5589bef MCC |
224 | |
225 | em28xx_write_regs_req(dev,0x00,0x0e,"\xC0",1); | |
226 | em28xx_write_regs_req(dev,0x00,0x0f,"\x80",1); | |
227 | em28xx_write_regs_req(dev,0x00,0x11,"\x51",1); | |
228 | ||
3acf2809 | 229 | em28xx_audio_usb_mute(dev, 1); |
a6c2ba28 AM |
230 | dev->mute = 1; /* maybe not the right place... */ |
231 | dev->volume = 0x1f; | |
3acf2809 MCC |
232 | em28xx_audio_analog_set(dev); |
233 | em28xx_audio_analog_setup(dev); | |
234 | em28xx_outfmt_set_yuv422(dev); | |
235 | em28xx_colorlevels_set_default(dev); | |
236 | em28xx_compression_disable(dev); | |
a6c2ba28 AM |
237 | |
238 | return 0; | |
239 | } | |
240 | ||
241 | /* | |
3acf2809 | 242 | * em28xx_config_i2c() |
a6c2ba28 AM |
243 | * configure i2c attached devices |
244 | */ | |
943a4902 | 245 | static void em28xx_config_i2c(struct em28xx *dev) |
a6c2ba28 AM |
246 | { |
247 | struct v4l2_frequency f; | |
3acf2809 | 248 | struct video_decoder_init em28xx_vdi = {.data = NULL }; |
a6c2ba28 AM |
249 | |
250 | ||
251 | /* configure decoder */ | |
a38a7d4f | 252 | if(dev->model == EM2820_BOARD_MSI_VOX_USB_2){ |
3acf2809 MCC |
253 | em28xx_vdi.data=saa7114_i2c_init; |
254 | em28xx_vdi.len=sizeof(saa7114_i2c_init); | |
a38a7d4f MR |
255 | } |
256 | ||
257 | ||
3acf2809 MCC |
258 | em28xx_i2c_call_clients(dev, DECODER_INIT, &em28xx_vdi); |
259 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &dev->ctl_input); | |
260 | /* em28xx_i2c_call_clients(dev,DECODER_SET_PICTURE, &dev->vpic); */ | |
261 | /* em28xx_i2c_call_clients(dev,DECODER_SET_NORM,&dev->tvnorm->id); */ | |
262 | /* em28xx_i2c_call_clients(dev,DECODER_ENABLE_OUTPUT,&output); */ | |
263 | /* em28xx_i2c_call_clients(dev,DECODER_DUMP, NULL); */ | |
a6c2ba28 AM |
264 | |
265 | /* configure tuner */ | |
266 | f.tuner = 0; | |
267 | f.type = V4L2_TUNER_ANALOG_TV; | |
268 | f.frequency = 9076; /* FIXME:remove magic number */ | |
269 | dev->ctl_freq = f.frequency; | |
3acf2809 | 270 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); |
a6c2ba28 AM |
271 | |
272 | /* configure tda9887 */ | |
273 | ||
a6c2ba28 | 274 | |
3acf2809 | 275 | /* em28xx_i2c_call_clients(dev,VIDIOC_S_STD,&dev->tvnorm->id); */ |
a6c2ba28 AM |
276 | } |
277 | ||
278 | /* | |
3acf2809 | 279 | * em28xx_empty_framequeues() |
a6c2ba28 AM |
280 | * prepare queues for incoming and outgoing frames |
281 | */ | |
3acf2809 | 282 | static void em28xx_empty_framequeues(struct em28xx *dev) |
a6c2ba28 AM |
283 | { |
284 | u32 i; | |
285 | ||
286 | INIT_LIST_HEAD(&dev->inqueue); | |
287 | INIT_LIST_HEAD(&dev->outqueue); | |
288 | ||
3acf2809 | 289 | for (i = 0; i < EM28XX_NUM_FRAMES; i++) { |
a6c2ba28 AM |
290 | dev->frame[i].state = F_UNUSED; |
291 | dev->frame[i].buf.bytesused = 0; | |
292 | } | |
293 | } | |
294 | ||
eac94356 MCC |
295 | static void video_mux(struct em28xx *dev, int index) |
296 | { | |
297 | int input, ainput; | |
298 | ||
299 | input = INPUT(index)->vmux; | |
300 | dev->ctl_input = index; | |
301 | dev->ctl_ainput = INPUT(index)->amux; | |
302 | ||
303 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &input); | |
304 | ||
305 | ||
306 | em28xx_videodbg("Setting input index=%d, vmux=%d, amux=%d\n",index,input,dev->ctl_ainput); | |
307 | ||
308 | if (dev->has_msp34xx) { | |
9bb13a6d MCC |
309 | if (dev->i2s_speed) |
310 | em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, &dev->i2s_speed); | |
eac94356 MCC |
311 | em28xx_i2c_call_clients(dev, VIDIOC_S_AUDIO, &dev->ctl_ainput); |
312 | ainput = EM28XX_AUDIO_SRC_TUNER; | |
313 | em28xx_audio_source(dev, ainput); | |
314 | } else { | |
315 | switch (dev->ctl_ainput) { | |
316 | case 0: | |
317 | ainput = EM28XX_AUDIO_SRC_TUNER; | |
318 | break; | |
319 | default: | |
320 | ainput = EM28XX_AUDIO_SRC_LINE; | |
321 | } | |
322 | em28xx_audio_source(dev, ainput); | |
323 | } | |
324 | } | |
325 | ||
a6c2ba28 | 326 | /* |
3acf2809 | 327 | * em28xx_v4l2_open() |
a6c2ba28 AM |
328 | * inits the device and starts isoc transfer |
329 | */ | |
3acf2809 | 330 | static int em28xx_v4l2_open(struct inode *inode, struct file *filp) |
a6c2ba28 | 331 | { |
a6c2ba28 | 332 | int minor = iminor(inode); |
a6c2ba28 | 333 | int errCode = 0; |
3acf2809 | 334 | struct em28xx *h,*dev = NULL; |
9c75541f MR |
335 | struct list_head *list; |
336 | ||
3acf2809 MCC |
337 | list_for_each(list,&em28xx_devlist) { |
338 | h = list_entry(list, struct em28xx, devlist); | |
9c75541f MR |
339 | if (h->vdev->minor == minor) { |
340 | dev = h; | |
e5589bef MCC |
341 | dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
342 | } | |
343 | if (h->vbi_dev->minor == minor) { | |
344 | dev = h; | |
345 | dev->type = V4L2_BUF_TYPE_VBI_CAPTURE; | |
9c75541f MR |
346 | } |
347 | } | |
e5589bef MCC |
348 | if (NULL == dev) |
349 | return -ENODEV; | |
9c75541f MR |
350 | |
351 | filp->private_data=dev; | |
352 | ||
e5589bef MCC |
353 | em28xx_videodbg("open minor=%d type=%s users=%d\n", |
354 | minor,v4l2_type_names[dev->type],dev->users); | |
a6c2ba28 | 355 | |
3acf2809 | 356 | if (!down_read_trylock(&em28xx_disconnect)) |
a6c2ba28 AM |
357 | return -ERESTARTSYS; |
358 | ||
359 | if (dev->users) { | |
3acf2809 MCC |
360 | em28xx_warn("this driver can be opened only once\n"); |
361 | up_read(&em28xx_disconnect); | |
a6c2ba28 AM |
362 | return -EBUSY; |
363 | } | |
364 | ||
a6c2ba28 AM |
365 | init_MUTEX(&dev->fileop_lock); /* to 1 == available */ |
366 | spin_lock_init(&dev->queue_lock); | |
367 | init_waitqueue_head(&dev->wait_frame); | |
368 | init_waitqueue_head(&dev->wait_stream); | |
369 | ||
370 | down(&dev->lock); | |
371 | ||
e5589bef MCC |
372 | if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
373 | em28xx_set_alternate(dev); | |
a6c2ba28 | 374 | |
e5589bef MCC |
375 | dev->width = norm_maxw(dev); |
376 | dev->height = norm_maxh(dev); | |
377 | dev->frame_size = dev->width * dev->height * 2; | |
378 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
379 | dev->bytesperline = dev->width * 2; | |
380 | dev->hscale = 0; | |
381 | dev->vscale = 0; | |
a6c2ba28 | 382 | |
e5589bef MCC |
383 | em28xx_capture_start(dev, 1); |
384 | em28xx_resolution_set(dev); | |
a6c2ba28 | 385 | |
e5589bef MCC |
386 | /* start the transfer */ |
387 | errCode = em28xx_init_isoc(dev); | |
388 | if (errCode) | |
389 | goto err; | |
390 | ||
391 | video_mux(dev, 0); | |
392 | } | |
a6c2ba28 AM |
393 | |
394 | dev->users++; | |
395 | filp->private_data = dev; | |
396 | dev->io = IO_NONE; | |
397 | dev->stream = STREAM_OFF; | |
398 | dev->num_frames = 0; | |
399 | ||
400 | /* prepare queues */ | |
3acf2809 | 401 | em28xx_empty_framequeues(dev); |
a6c2ba28 AM |
402 | |
403 | dev->state |= DEV_INITIALIZED; | |
404 | ||
405 | err: | |
406 | up(&dev->lock); | |
3acf2809 | 407 | up_read(&em28xx_disconnect); |
a6c2ba28 AM |
408 | return errCode; |
409 | } | |
410 | ||
411 | /* | |
3acf2809 | 412 | * em28xx_realease_resources() |
a6c2ba28 AM |
413 | * unregisters the v4l2,i2c and usb devices |
414 | * called when the device gets disconected or at module unload | |
415 | */ | |
3acf2809 | 416 | static void em28xx_release_resources(struct em28xx *dev) |
a6c2ba28 | 417 | { |
1e4baed3 | 418 | mutex_lock(&em28xx_sysfs_lock); |
a6c2ba28 | 419 | |
e5589bef MCC |
420 | /*FIXME: I2C IR should be disconnected */ |
421 | ||
422 | em28xx_info("V4L2 devices /dev/video%d and /dev/vbi%d deregistered\n", | |
423 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
424 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
9c75541f | 425 | list_del(&dev->devlist); |
a6c2ba28 | 426 | video_unregister_device(dev->vdev); |
e5589bef | 427 | video_unregister_device(dev->vbi_dev); |
3acf2809 | 428 | em28xx_i2c_unregister(dev); |
a6c2ba28 | 429 | usb_put_dev(dev->udev); |
1e4baed3 | 430 | mutex_unlock(&em28xx_sysfs_lock); |
e5589bef MCC |
431 | |
432 | ||
433 | /* Mark device as unused */ | |
434 | em28xx_devused&=~(1<<dev->devno); | |
a6c2ba28 AM |
435 | } |
436 | ||
437 | /* | |
3acf2809 | 438 | * em28xx_v4l2_close() |
a6c2ba28 AM |
439 | * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls |
440 | */ | |
3acf2809 | 441 | static int em28xx_v4l2_close(struct inode *inode, struct file *filp) |
a6c2ba28 | 442 | { |
a6c2ba28 | 443 | int errCode; |
3acf2809 | 444 | struct em28xx *dev=filp->private_data; |
a6c2ba28 | 445 | |
eac94356 | 446 | em28xx_videodbg("users=%d\n", dev->users); |
a6c2ba28 AM |
447 | |
448 | down(&dev->lock); | |
449 | ||
3acf2809 | 450 | em28xx_uninit_isoc(dev); |
a6c2ba28 | 451 | |
3acf2809 | 452 | em28xx_release_buffers(dev); |
a6c2ba28 AM |
453 | |
454 | /* the device is already disconnect, free the remaining resources */ | |
455 | if (dev->state & DEV_DISCONNECTED) { | |
3acf2809 | 456 | em28xx_release_resources(dev); |
a6c2ba28 AM |
457 | up(&dev->lock); |
458 | kfree(dev); | |
459 | return 0; | |
460 | } | |
461 | ||
462 | /* set alternate 0 */ | |
463 | dev->alt = 0; | |
eac94356 | 464 | em28xx_videodbg("setting alternate 0\n"); |
a6c2ba28 AM |
465 | errCode = usb_set_interface(dev->udev, 0, 0); |
466 | if (errCode < 0) { | |
3acf2809 | 467 | em28xx_errdev ("cannot change alternate number to 0 (error=%i)\n", |
a6c2ba28 AM |
468 | errCode); |
469 | } | |
470 | ||
471 | dev->users--; | |
472 | wake_up_interruptible_nr(&dev->open, 1); | |
473 | up(&dev->lock); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | /* | |
3acf2809 | 478 | * em28xx_v4l2_read() |
a6c2ba28 AM |
479 | * will allocate buffers when called for the first time |
480 | */ | |
481 | static ssize_t | |
3acf2809 | 482 | em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count, |
a6c2ba28 AM |
483 | loff_t * f_pos) |
484 | { | |
3acf2809 | 485 | struct em28xx_frame_t *f, *i; |
a6c2ba28 AM |
486 | unsigned long lock_flags; |
487 | int ret = 0; | |
3acf2809 | 488 | struct em28xx *dev = filp->private_data; |
a6c2ba28 | 489 | |
e5589bef MCC |
490 | if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
491 | em28xx_videodbg("V4l2_Buf_type_videocapture is set\n"); | |
492 | } | |
493 | if (dev->type == V4L2_BUF_TYPE_VBI_CAPTURE) { | |
494 | em28xx_videodbg("V4L2_BUF_TYPE_VBI_CAPTURE is set\n"); | |
495 | em28xx_videodbg("not supported yet! ...\n"); | |
496 | if (copy_to_user(buf, "", 1)) { | |
497 | up(&dev->fileop_lock); | |
498 | return -EFAULT; | |
499 | } | |
500 | return (1); | |
501 | } | |
502 | if (dev->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) { | |
503 | em28xx_videodbg("V4L2_BUF_TYPE_SLICED_VBI_CAPTURE is set\n"); | |
504 | em28xx_videodbg("not supported yet! ...\n"); | |
505 | if (copy_to_user(buf, "", 1)) { | |
506 | up(&dev->fileop_lock); | |
507 | return -EFAULT; | |
508 | } | |
509 | return (1); | |
510 | } | |
511 | ||
a6c2ba28 AM |
512 | if (down_interruptible(&dev->fileop_lock)) |
513 | return -ERESTARTSYS; | |
514 | ||
515 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 516 | em28xx_videodbg("device not present\n"); |
a6c2ba28 AM |
517 | up(&dev->fileop_lock); |
518 | return -ENODEV; | |
519 | } | |
520 | ||
521 | if (dev->state & DEV_MISCONFIGURED) { | |
eac94356 | 522 | em28xx_videodbg("device misconfigured; close and open it again\n"); |
a6c2ba28 AM |
523 | up(&dev->fileop_lock); |
524 | return -EIO; | |
525 | } | |
526 | ||
527 | if (dev->io == IO_MMAP) { | |
3acf2809 | 528 | em28xx_videodbg ("IO method is set to mmap; close and open" |
eac94356 | 529 | " the device again to choose the read method\n"); |
a6c2ba28 AM |
530 | up(&dev->fileop_lock); |
531 | return -EINVAL; | |
532 | } | |
533 | ||
534 | if (dev->io == IO_NONE) { | |
3acf2809 MCC |
535 | if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) { |
536 | em28xx_errdev("read failed, not enough memory\n"); | |
a6c2ba28 AM |
537 | up(&dev->fileop_lock); |
538 | return -ENOMEM; | |
539 | } | |
540 | dev->io = IO_READ; | |
541 | dev->stream = STREAM_ON; | |
3acf2809 | 542 | em28xx_queue_unusedframes(dev); |
a6c2ba28 AM |
543 | } |
544 | ||
545 | if (!count) { | |
546 | up(&dev->fileop_lock); | |
547 | return 0; | |
548 | } | |
549 | ||
550 | if (list_empty(&dev->outqueue)) { | |
551 | if (filp->f_flags & O_NONBLOCK) { | |
552 | up(&dev->fileop_lock); | |
553 | return -EAGAIN; | |
554 | } | |
555 | ret = wait_event_interruptible | |
556 | (dev->wait_frame, | |
557 | (!list_empty(&dev->outqueue)) || | |
558 | (dev->state & DEV_DISCONNECTED)); | |
559 | if (ret) { | |
560 | up(&dev->fileop_lock); | |
561 | return ret; | |
562 | } | |
563 | if (dev->state & DEV_DISCONNECTED) { | |
564 | up(&dev->fileop_lock); | |
565 | return -ENODEV; | |
566 | } | |
567 | } | |
568 | ||
3acf2809 | 569 | f = list_entry(dev->outqueue.prev, struct em28xx_frame_t, frame); |
a6c2ba28 AM |
570 | |
571 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
572 | list_for_each_entry(i, &dev->outqueue, frame) | |
573 | i->state = F_UNUSED; | |
574 | INIT_LIST_HEAD(&dev->outqueue); | |
575 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
576 | ||
3acf2809 | 577 | em28xx_queue_unusedframes(dev); |
a6c2ba28 AM |
578 | |
579 | if (count > f->buf.length) | |
580 | count = f->buf.length; | |
581 | ||
582 | if (copy_to_user(buf, f->bufmem, count)) { | |
583 | up(&dev->fileop_lock); | |
584 | return -EFAULT; | |
585 | } | |
586 | *f_pos += count; | |
587 | ||
588 | up(&dev->fileop_lock); | |
589 | ||
590 | return count; | |
591 | } | |
592 | ||
593 | /* | |
3acf2809 | 594 | * em28xx_v4l2_poll() |
a6c2ba28 AM |
595 | * will allocate buffers when called for the first time |
596 | */ | |
3acf2809 | 597 | static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) |
a6c2ba28 | 598 | { |
a6c2ba28 | 599 | unsigned int mask = 0; |
3acf2809 | 600 | struct em28xx *dev = filp->private_data; |
a6c2ba28 AM |
601 | |
602 | if (down_interruptible(&dev->fileop_lock)) | |
603 | return POLLERR; | |
604 | ||
605 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 606 | em28xx_videodbg("device not present\n"); |
a6c2ba28 | 607 | } else if (dev->state & DEV_MISCONFIGURED) { |
eac94356 | 608 | em28xx_videodbg("device is misconfigured; close and open it again\n"); |
a6c2ba28 AM |
609 | } else { |
610 | if (dev->io == IO_NONE) { | |
3acf2809 MCC |
611 | if (!em28xx_request_buffers |
612 | (dev, EM28XX_NUM_READ_FRAMES)) { | |
613 | em28xx_warn | |
a6c2ba28 AM |
614 | ("poll() failed, not enough memory\n"); |
615 | } else { | |
616 | dev->io = IO_READ; | |
617 | dev->stream = STREAM_ON; | |
618 | } | |
619 | } | |
620 | ||
621 | if (dev->io == IO_READ) { | |
3acf2809 | 622 | em28xx_queue_unusedframes(dev); |
a6c2ba28 AM |
623 | poll_wait(filp, &dev->wait_frame, wait); |
624 | ||
625 | if (!list_empty(&dev->outqueue)) | |
626 | mask |= POLLIN | POLLRDNORM; | |
627 | ||
628 | up(&dev->fileop_lock); | |
629 | ||
630 | return mask; | |
631 | } | |
632 | } | |
633 | ||
634 | up(&dev->fileop_lock); | |
635 | return POLLERR; | |
636 | } | |
637 | ||
638 | /* | |
3acf2809 | 639 | * em28xx_vm_open() |
a6c2ba28 | 640 | */ |
3acf2809 | 641 | static void em28xx_vm_open(struct vm_area_struct *vma) |
a6c2ba28 | 642 | { |
3acf2809 | 643 | struct em28xx_frame_t *f = vma->vm_private_data; |
a6c2ba28 AM |
644 | f->vma_use_count++; |
645 | } | |
646 | ||
647 | /* | |
3acf2809 | 648 | * em28xx_vm_close() |
a6c2ba28 | 649 | */ |
3acf2809 | 650 | static void em28xx_vm_close(struct vm_area_struct *vma) |
a6c2ba28 AM |
651 | { |
652 | /* NOTE: buffers are not freed here */ | |
3acf2809 | 653 | struct em28xx_frame_t *f = vma->vm_private_data; |
a6c2ba28 AM |
654 | f->vma_use_count--; |
655 | } | |
656 | ||
3acf2809 MCC |
657 | static struct vm_operations_struct em28xx_vm_ops = { |
658 | .open = em28xx_vm_open, | |
659 | .close = em28xx_vm_close, | |
a6c2ba28 AM |
660 | }; |
661 | ||
662 | /* | |
3acf2809 | 663 | * em28xx_v4l2_mmap() |
a6c2ba28 | 664 | */ |
3acf2809 | 665 | static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) |
a6c2ba28 | 666 | { |
a6c2ba28 | 667 | unsigned long size = vma->vm_end - vma->vm_start, |
3639c861 SS |
668 | start = vma->vm_start; |
669 | void *pos; | |
a6c2ba28 | 670 | u32 i; |
9c75541f | 671 | |
3acf2809 | 672 | struct em28xx *dev = filp->private_data; |
9c75541f | 673 | |
a6c2ba28 AM |
674 | if (down_interruptible(&dev->fileop_lock)) |
675 | return -ERESTARTSYS; | |
676 | ||
677 | if (dev->state & DEV_DISCONNECTED) { | |
eac94356 | 678 | em28xx_videodbg("mmap: device not present\n"); |
a6c2ba28 AM |
679 | up(&dev->fileop_lock); |
680 | return -ENODEV; | |
681 | } | |
682 | ||
683 | if (dev->state & DEV_MISCONFIGURED) { | |
3acf2809 | 684 | em28xx_videodbg ("mmap: Device is misconfigured; close and " |
eac94356 | 685 | "open it again\n"); |
a6c2ba28 AM |
686 | up(&dev->fileop_lock); |
687 | return -EIO; | |
688 | } | |
689 | ||
690 | if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || | |
691 | size != PAGE_ALIGN(dev->frame[0].buf.length)) { | |
692 | up(&dev->fileop_lock); | |
693 | return -EINVAL; | |
694 | } | |
695 | ||
696 | for (i = 0; i < dev->num_frames; i++) { | |
697 | if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) | |
698 | break; | |
699 | } | |
700 | if (i == dev->num_frames) { | |
eac94356 | 701 | em28xx_videodbg("mmap: user supplied mapping address is out of range\n"); |
a6c2ba28 AM |
702 | up(&dev->fileop_lock); |
703 | return -EINVAL; | |
704 | } | |
705 | ||
706 | /* VM_IO is eventually going to replace PageReserved altogether */ | |
707 | vma->vm_flags |= VM_IO; | |
708 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ | |
709 | ||
3639c861 | 710 | pos = dev->frame[i].bufmem; |
a6c2ba28 | 711 | while (size > 0) { /* size is page-aligned */ |
3639c861 SS |
712 | if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { |
713 | em28xx_videodbg("mmap: vm_insert_page failed\n"); | |
a6c2ba28 AM |
714 | up(&dev->fileop_lock); |
715 | return -EAGAIN; | |
716 | } | |
717 | start += PAGE_SIZE; | |
718 | pos += PAGE_SIZE; | |
719 | size -= PAGE_SIZE; | |
720 | } | |
721 | ||
3acf2809 | 722 | vma->vm_ops = &em28xx_vm_ops; |
a6c2ba28 AM |
723 | vma->vm_private_data = &dev->frame[i]; |
724 | ||
3acf2809 | 725 | em28xx_vm_open(vma); |
a6c2ba28 AM |
726 | up(&dev->fileop_lock); |
727 | return 0; | |
728 | } | |
729 | ||
730 | /* | |
3acf2809 | 731 | * em28xx_get_ctrl() |
a6c2ba28 AM |
732 | * return the current saturation, brightness or contrast, mute state |
733 | */ | |
3acf2809 | 734 | static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) |
a6c2ba28 | 735 | { |
a6c2ba28 AM |
736 | switch (ctrl->id) { |
737 | case V4L2_CID_AUDIO_MUTE: | |
738 | ctrl->value = dev->mute; | |
739 | return 0; | |
740 | case V4L2_CID_AUDIO_VOLUME: | |
741 | ctrl->value = dev->volume; | |
742 | return 0; | |
c0477ad9 MCC |
743 | default: |
744 | return -EINVAL; | |
745 | } | |
746 | } | |
747 | ||
748 | /*FIXME: should be moved to saa711x */ | |
749 | static int saa711x_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) | |
750 | { | |
751 | s32 tmp; | |
752 | switch (ctrl->id) { | |
a6c2ba28 | 753 | case V4L2_CID_BRIGHTNESS: |
3acf2809 | 754 | if ((tmp = em28xx_brightness_get(dev)) < 0) |
a6c2ba28 AM |
755 | return -EIO; |
756 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
757 | return 0; | |
758 | case V4L2_CID_CONTRAST: | |
3acf2809 | 759 | if ((ctrl->value = em28xx_contrast_get(dev)) < 0) |
a6c2ba28 AM |
760 | return -EIO; |
761 | return 0; | |
762 | case V4L2_CID_SATURATION: | |
3acf2809 | 763 | if ((ctrl->value = em28xx_saturation_get(dev)) < 0) |
a6c2ba28 AM |
764 | return -EIO; |
765 | return 0; | |
766 | case V4L2_CID_RED_BALANCE: | |
3acf2809 | 767 | if ((tmp = em28xx_v_balance_get(dev)) < 0) |
a6c2ba28 AM |
768 | return -EIO; |
769 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
770 | return 0; | |
771 | case V4L2_CID_BLUE_BALANCE: | |
3acf2809 | 772 | if ((tmp = em28xx_u_balance_get(dev)) < 0) |
a6c2ba28 AM |
773 | return -EIO; |
774 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ | |
775 | return 0; | |
776 | case V4L2_CID_GAMMA: | |
3acf2809 | 777 | if ((ctrl->value = em28xx_gamma_get(dev)) < 0) |
a6c2ba28 AM |
778 | return -EIO; |
779 | return 0; | |
780 | default: | |
781 | return -EINVAL; | |
782 | } | |
783 | } | |
784 | ||
785 | /* | |
3acf2809 | 786 | * em28xx_set_ctrl() |
a6c2ba28 AM |
787 | * mute or set new saturation, brightness or contrast |
788 | */ | |
3acf2809 | 789 | static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) |
a6c2ba28 AM |
790 | { |
791 | switch (ctrl->id) { | |
792 | case V4L2_CID_AUDIO_MUTE: | |
793 | if (ctrl->value != dev->mute) { | |
794 | dev->mute = ctrl->value; | |
3acf2809 MCC |
795 | em28xx_audio_usb_mute(dev, ctrl->value); |
796 | return em28xx_audio_analog_set(dev); | |
a6c2ba28 AM |
797 | } |
798 | return 0; | |
799 | case V4L2_CID_AUDIO_VOLUME: | |
800 | dev->volume = ctrl->value; | |
3acf2809 | 801 | return em28xx_audio_analog_set(dev); |
c0477ad9 MCC |
802 | default: |
803 | return -EINVAL; | |
804 | } | |
805 | } | |
806 | ||
807 | /*FIXME: should be moved to saa711x */ | |
808 | static int saa711x_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) | |
809 | { | |
810 | switch (ctrl->id) { | |
a6c2ba28 | 811 | case V4L2_CID_BRIGHTNESS: |
3acf2809 | 812 | return em28xx_brightness_set(dev, ctrl->value); |
a6c2ba28 | 813 | case V4L2_CID_CONTRAST: |
3acf2809 | 814 | return em28xx_contrast_set(dev, ctrl->value); |
a6c2ba28 | 815 | case V4L2_CID_SATURATION: |
3acf2809 | 816 | return em28xx_saturation_set(dev, ctrl->value); |
a6c2ba28 | 817 | case V4L2_CID_RED_BALANCE: |
3acf2809 | 818 | return em28xx_v_balance_set(dev, ctrl->value); |
a6c2ba28 | 819 | case V4L2_CID_BLUE_BALANCE: |
3acf2809 | 820 | return em28xx_u_balance_set(dev, ctrl->value); |
a6c2ba28 | 821 | case V4L2_CID_GAMMA: |
3acf2809 | 822 | return em28xx_gamma_set(dev, ctrl->value); |
a6c2ba28 AM |
823 | default: |
824 | return -EINVAL; | |
825 | } | |
826 | } | |
827 | ||
828 | /* | |
3acf2809 | 829 | * em28xx_stream_interrupt() |
a6c2ba28 AM |
830 | * stops streaming |
831 | */ | |
3acf2809 | 832 | static int em28xx_stream_interrupt(struct em28xx *dev) |
a6c2ba28 AM |
833 | { |
834 | int ret = 0; | |
835 | ||
836 | /* stop reading from the device */ | |
837 | ||
838 | dev->stream = STREAM_INTERRUPT; | |
839 | ret = wait_event_timeout(dev->wait_stream, | |
840 | (dev->stream == STREAM_OFF) || | |
841 | (dev->state & DEV_DISCONNECTED), | |
3acf2809 | 842 | EM28XX_URB_TIMEOUT); |
a6c2ba28 AM |
843 | if (dev->state & DEV_DISCONNECTED) |
844 | return -ENODEV; | |
845 | else if (ret) { | |
846 | dev->state |= DEV_MISCONFIGURED; | |
3acf2809 | 847 | em28xx_videodbg("device is misconfigured; close and " |
e5589bef MCC |
848 | "open /dev/video%d again\n", |
849 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN); | |
a6c2ba28 AM |
850 | return ret; |
851 | } | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
3acf2809 | 856 | static int em28xx_set_norm(struct em28xx *dev, int width, int height) |
a6c2ba28 AM |
857 | { |
858 | unsigned int hscale, vscale; | |
859 | unsigned int maxh, maxw; | |
860 | ||
861 | maxw = norm_maxw(dev); | |
862 | maxh = norm_maxh(dev); | |
863 | ||
864 | /* width must even because of the YUYV format */ | |
865 | /* height must be even because of interlacing */ | |
866 | height &= 0xfffe; | |
867 | width &= 0xfffe; | |
868 | ||
869 | if (height < 32) | |
870 | height = 32; | |
871 | if (height > maxh) | |
872 | height = maxh; | |
873 | if (width < 48) | |
874 | width = 48; | |
875 | if (width > maxw) | |
876 | width = maxw; | |
877 | ||
878 | if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000) | |
879 | hscale = 0x3fff; | |
880 | width = (((unsigned long)maxw) << 12) / (hscale + 4096L); | |
881 | ||
882 | if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000) | |
883 | vscale = 0x3fff; | |
884 | height = (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
885 | ||
886 | /* set new image size */ | |
887 | dev->width = width; | |
888 | dev->height = height; | |
889 | dev->frame_size = dev->width * dev->height * 2; | |
890 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
891 | dev->bytesperline = dev->width * 2; | |
892 | dev->hscale = hscale; | |
893 | dev->vscale = vscale; | |
894 | ||
3acf2809 | 895 | em28xx_resolution_set(dev); |
a6c2ba28 AM |
896 | |
897 | return 0; | |
898 | } | |
899 | ||
e5589bef MCC |
900 | |
901 | static int em28xx_get_fmt(struct em28xx *dev, struct v4l2_format *format) | |
902 | { | |
903 | em28xx_videodbg("VIDIOC_G_FMT: type=%s\n", | |
904 | (format->type ==V4L2_BUF_TYPE_VIDEO_CAPTURE) ? | |
905 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : | |
906 | (format->type ==V4L2_BUF_TYPE_VBI_CAPTURE) ? | |
907 | "V4L2_BUF_TYPE_VBI_CAPTURE" : | |
908 | (format->type ==V4L2_CAP_SLICED_VBI_CAPTURE) ? | |
909 | "V4L2_BUF_TYPE_SLICED_VBI_CAPTURE " : | |
910 | "not supported"); | |
911 | ||
912 | if (format->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
913 | format->fmt.pix.width = dev->width; | |
914 | format->fmt.pix.height = dev->height; | |
915 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
916 | format->fmt.pix.bytesperline = dev->bytesperline; | |
917 | format->fmt.pix.sizeimage = dev->frame_size; | |
918 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
919 | format->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ | |
920 | ||
921 | em28xx_videodbg("VIDIOC_G_FMT: %dx%d\n", dev->width, | |
922 | dev->height); | |
923 | return 0; | |
924 | } | |
925 | ||
926 | return -EINVAL; | |
927 | } | |
928 | ||
929 | ||
a6c2ba28 | 930 | /* |
3acf2809 | 931 | * em28xx_v4l2_do_ioctl() |
a6c2ba28 | 932 | * This function is _not_ called directly, but from |
3acf2809 | 933 | * em28xx_v4l2_ioctl. Userspace |
a6c2ba28 AM |
934 | * copying is done already, arg is a kernel pointer. |
935 | */ | |
3acf2809 MCC |
936 | static int em28xx_do_ioctl(struct inode *inode, struct file *filp, |
937 | struct em28xx *dev, unsigned int cmd, void *arg, | |
a6c2ba28 AM |
938 | v4l2_kioctl driver_ioctl) |
939 | { | |
940 | int ret; | |
941 | ||
942 | switch (cmd) { | |
943 | /* ---------- tv norms ---------- */ | |
944 | case VIDIOC_ENUMSTD: | |
945 | { | |
946 | struct v4l2_standard *e = arg; | |
947 | unsigned int i; | |
948 | ||
949 | i = e->index; | |
950 | if (i >= TVNORMS) | |
951 | return -EINVAL; | |
952 | ret = v4l2_video_std_construct(e, tvnorms[e->index].id, | |
953 | tvnorms[e->index].name); | |
954 | e->index = i; | |
955 | if (ret < 0) | |
956 | return ret; | |
957 | return 0; | |
958 | } | |
959 | case VIDIOC_G_STD: | |
960 | { | |
961 | v4l2_std_id *id = arg; | |
962 | ||
963 | *id = dev->tvnorm->id; | |
964 | return 0; | |
965 | } | |
966 | case VIDIOC_S_STD: | |
967 | { | |
968 | v4l2_std_id *id = arg; | |
969 | unsigned int i; | |
970 | ||
971 | for (i = 0; i < TVNORMS; i++) | |
972 | if (*id == tvnorms[i].id) | |
973 | break; | |
974 | if (i == TVNORMS) | |
975 | for (i = 0; i < TVNORMS; i++) | |
976 | if (*id & tvnorms[i].id) | |
977 | break; | |
978 | if (i == TVNORMS) | |
979 | return -EINVAL; | |
980 | ||
981 | down(&dev->lock); | |
982 | dev->tvnorm = &tvnorms[i]; | |
983 | ||
3acf2809 | 984 | em28xx_set_norm(dev, dev->width, dev->height); |
a6c2ba28 AM |
985 | |
986 | /* | |
987 | dev->width=norm_maxw(dev); | |
988 | dev->height=norm_maxh(dev); | |
989 | dev->frame_size=dev->width*dev->height*2; | |
990 | dev->field_size=dev->frame_size>>1; | |
991 | dev->bytesperline=dev->width*2; | |
992 | dev->hscale=0; | |
993 | dev->vscale=0; | |
994 | ||
3acf2809 | 995 | em28xx_resolution_set(dev); |
a6c2ba28 AM |
996 | */ |
997 | /* | |
3acf2809 MCC |
998 | em28xx_uninit_isoc(dev); |
999 | em28xx_set_alternate(dev); | |
1000 | em28xx_capture_start(dev, 1); | |
1001 | em28xx_resolution_set(dev); | |
1002 | em28xx_init_isoc(dev); | |
a6c2ba28 | 1003 | */ |
3acf2809 | 1004 | em28xx_i2c_call_clients(dev, DECODER_SET_NORM, |
a6c2ba28 | 1005 | &tvnorms[i].mode); |
3acf2809 | 1006 | em28xx_i2c_call_clients(dev, VIDIOC_S_STD, |
a6c2ba28 AM |
1007 | &dev->tvnorm->id); |
1008 | ||
1009 | up(&dev->lock); | |
1010 | ||
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | /* ------ input switching ---------- */ | |
1015 | case VIDIOC_ENUMINPUT: | |
1016 | { | |
1017 | struct v4l2_input *i = arg; | |
1018 | unsigned int n; | |
1019 | static const char *iname[] = { | |
3acf2809 MCC |
1020 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", |
1021 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", | |
1022 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", | |
1023 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", | |
1024 | [EM28XX_VMUX_SVIDEO] = "S-Video", | |
1025 | [EM28XX_VMUX_TELEVISION] = "Television", | |
1026 | [EM28XX_VMUX_CABLE] = "Cable TV", | |
1027 | [EM28XX_VMUX_DVB] = "DVB", | |
1028 | [EM28XX_VMUX_DEBUG] = "for debug only", | |
a6c2ba28 AM |
1029 | }; |
1030 | ||
1031 | n = i->index; | |
3acf2809 | 1032 | if (n >= MAX_EM28XX_INPUT) |
a6c2ba28 AM |
1033 | return -EINVAL; |
1034 | if (0 == INPUT(n)->type) | |
1035 | return -EINVAL; | |
1036 | memset(i, 0, sizeof(*i)); | |
1037 | i->index = n; | |
1038 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
1039 | strcpy(i->name, iname[INPUT(n)->type]); | |
3acf2809 MCC |
1040 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
1041 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) | |
a6c2ba28 AM |
1042 | i->type = V4L2_INPUT_TYPE_TUNER; |
1043 | for (n = 0; n < ARRAY_SIZE(tvnorms); n++) | |
1044 | i->std |= tvnorms[n].id; | |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | case VIDIOC_G_INPUT: | |
1049 | { | |
1050 | int *i = arg; | |
1051 | *i = dev->ctl_input; | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | case VIDIOC_S_INPUT: | |
1057 | { | |
1058 | int *index = arg; | |
1059 | ||
3acf2809 | 1060 | if (*index >= MAX_EM28XX_INPUT) |
a6c2ba28 AM |
1061 | return -EINVAL; |
1062 | if (0 == INPUT(*index)->type) | |
1063 | return -EINVAL; | |
1064 | ||
1065 | down(&dev->lock); | |
1066 | video_mux(dev, *index); | |
1067 | up(&dev->lock); | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | case VIDIOC_G_AUDIO: | |
1073 | { | |
1074 | struct v4l2_audio *a = arg; | |
1075 | unsigned int index = a->index; | |
1076 | ||
1077 | if (a->index > 1) | |
1078 | return -EINVAL; | |
1079 | memset(a, 0, sizeof(*a)); | |
1080 | index = dev->ctl_ainput; | |
1081 | ||
1082 | if (index == 0) { | |
1083 | strcpy(a->name, "Television"); | |
1084 | } else { | |
1085 | strcpy(a->name, "Line In"); | |
1086 | } | |
1087 | a->capability = V4L2_AUDCAP_STEREO; | |
1088 | a->index = index; | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | case VIDIOC_S_AUDIO: | |
1093 | { | |
1094 | struct v4l2_audio *a = arg; | |
1095 | if (a->index != dev->ctl_ainput) | |
1096 | return -EINVAL; | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | /* --- controls ---------------------------------------------- */ | |
1102 | case VIDIOC_QUERYCTRL: | |
1103 | { | |
1104 | struct v4l2_queryctrl *qc = arg; | |
c0477ad9 MCC |
1105 | int i, id=qc->id; |
1106 | ||
1107 | memset(qc,0,sizeof(*qc)); | |
1108 | qc->id=id; | |
1109 | ||
1110 | if (!dev->has_msp34xx) { | |
1111 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1112 | if (qc->id && qc->id == em28xx_qctrl[i].id) { | |
1113 | memcpy(qc, &(em28xx_qctrl[i]), | |
1114 | sizeof(*qc)); | |
1115 | return 0; | |
1116 | } | |
1117 | } | |
1118 | } | |
1119 | if (dev->decoder == EM28XX_TVP5150) { | |
1120 | em28xx_i2c_call_clients(dev,cmd,qc); | |
1121 | if (qc->type) | |
1122 | return 0; | |
1123 | else | |
1124 | return -EINVAL; | |
1125 | } | |
1126 | for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { | |
1127 | if (qc->id && qc->id == saa711x_qctrl[i].id) { | |
1128 | memcpy(qc, &(saa711x_qctrl[i]), | |
a6c2ba28 AM |
1129 | sizeof(*qc)); |
1130 | return 0; | |
1131 | } | |
c0477ad9 | 1132 | } |
a6c2ba28 AM |
1133 | |
1134 | return -EINVAL; | |
1135 | } | |
1136 | ||
1137 | case VIDIOC_G_CTRL: | |
1138 | { | |
1139 | struct v4l2_control *ctrl = arg; | |
c0477ad9 | 1140 | int retval=-EINVAL; |
a6c2ba28 | 1141 | |
c0477ad9 MCC |
1142 | if (!dev->has_msp34xx) |
1143 | retval=em28xx_get_ctrl(dev, ctrl); | |
1144 | if (retval==-EINVAL) { | |
1145 | if (dev->decoder == EM28XX_TVP5150) { | |
1146 | em28xx_i2c_call_clients(dev,cmd,arg); | |
1147 | return 0; | |
1148 | } | |
a6c2ba28 | 1149 | |
c0477ad9 MCC |
1150 | return saa711x_get_ctrl(dev, ctrl); |
1151 | } else return retval; | |
a6c2ba28 AM |
1152 | } |
1153 | ||
a6c2ba28 AM |
1154 | case VIDIOC_S_CTRL: |
1155 | { | |
1156 | struct v4l2_control *ctrl = arg; | |
c0477ad9 MCC |
1157 | u8 i; |
1158 | ||
1159 | if (!dev->has_msp34xx){ | |
1160 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1161 | if (ctrl->id == em28xx_qctrl[i].id) { | |
1162 | if (ctrl->value < | |
1163 | em28xx_qctrl[i].minimum | |
1164 | || ctrl->value > | |
1165 | em28xx_qctrl[i].maximum) | |
1166 | return -ERANGE; | |
1167 | return em28xx_set_ctrl(dev, ctrl); | |
1168 | } | |
1169 | } | |
1170 | } | |
a6c2ba28 | 1171 | |
c0477ad9 MCC |
1172 | if (dev->decoder == EM28XX_TVP5150) { |
1173 | em28xx_i2c_call_clients(dev,cmd,arg); | |
1174 | return 0; | |
7865c44d | 1175 | } else if (!dev->has_msp34xx) { |
c0477ad9 MCC |
1176 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { |
1177 | if (ctrl->id == em28xx_qctrl[i].id) { | |
1178 | if (ctrl->value < | |
1179 | em28xx_qctrl[i].minimum | |
1180 | || ctrl->value > | |
1181 | em28xx_qctrl[i].maximum) | |
1182 | return -ERANGE; | |
1183 | return em28xx_set_ctrl(dev, ctrl); | |
1184 | } | |
1185 | } | |
1186 | for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { | |
1187 | if (ctrl->id == saa711x_qctrl[i].id) { | |
1188 | if (ctrl->value < | |
1189 | saa711x_qctrl[i].minimum | |
1190 | || ctrl->value > | |
1191 | saa711x_qctrl[i].maximum) | |
1192 | return -ERANGE; | |
1193 | return saa711x_set_ctrl(dev, ctrl); | |
1194 | } | |
a6c2ba28 | 1195 | } |
c0477ad9 MCC |
1196 | } |
1197 | ||
a6c2ba28 AM |
1198 | return -EINVAL; |
1199 | } | |
1200 | ||
1201 | /* --- tuner ioctls ------------------------------------------ */ | |
1202 | case VIDIOC_G_TUNER: | |
1203 | { | |
1204 | struct v4l2_tuner *t = arg; | |
1205 | int status = 0; | |
1206 | ||
1207 | if (0 != t->index) | |
1208 | return -EINVAL; | |
1209 | ||
1210 | memset(t, 0, sizeof(*t)); | |
1211 | strcpy(t->name, "Tuner"); | |
1212 | t->type = V4L2_TUNER_ANALOG_TV; | |
1213 | t->capability = V4L2_TUNER_CAP_NORM; | |
1214 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ | |
1215 | /* t->signal = 0xffff;*/ | |
3acf2809 | 1216 | /* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/ |
a6c2ba28 AM |
1217 | /* No way to get signal strength? */ |
1218 | down(&dev->lock); | |
3acf2809 | 1219 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
a6c2ba28 AM |
1220 | &status); |
1221 | up(&dev->lock); | |
1222 | t->signal = | |
1223 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; | |
1224 | ||
eac94356 | 1225 | em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x\n", t->signal, |
a6c2ba28 AM |
1226 | t->afc); |
1227 | return 0; | |
1228 | } | |
1229 | case VIDIOC_S_TUNER: | |
1230 | { | |
1231 | struct v4l2_tuner *t = arg; | |
1232 | int status = 0; | |
1233 | ||
1234 | if (0 != t->index) | |
1235 | return -EINVAL; | |
1236 | memset(t, 0, sizeof(*t)); | |
1237 | strcpy(t->name, "Tuner"); | |
1238 | t->type = V4L2_TUNER_ANALOG_TV; | |
1239 | t->capability = V4L2_TUNER_CAP_NORM; | |
1240 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ | |
1241 | /* t->signal = 0xffff; */ | |
1242 | /* No way to get signal strength? */ | |
1243 | down(&dev->lock); | |
3acf2809 | 1244 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
a6c2ba28 AM |
1245 | &status); |
1246 | up(&dev->lock); | |
1247 | t->signal = | |
1248 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; | |
1249 | ||
3acf2809 | 1250 | em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", |
a6c2ba28 AM |
1251 | t->signal, t->afc); |
1252 | return 0; | |
1253 | } | |
1254 | case VIDIOC_G_FREQUENCY: | |
1255 | { | |
1256 | struct v4l2_frequency *f = arg; | |
1257 | ||
1258 | memset(f, 0, sizeof(*f)); | |
1259 | f->type = V4L2_TUNER_ANALOG_TV; | |
1260 | f->frequency = dev->ctl_freq; | |
1261 | ||
1262 | return 0; | |
1263 | } | |
1264 | case VIDIOC_S_FREQUENCY: | |
1265 | { | |
1266 | struct v4l2_frequency *f = arg; | |
1267 | ||
1268 | if (0 != f->tuner) | |
1269 | return -EINVAL; | |
1270 | ||
1271 | if (V4L2_TUNER_ANALOG_TV != f->type) | |
1272 | return -EINVAL; | |
1273 | ||
1274 | down(&dev->lock); | |
1275 | dev->ctl_freq = f->frequency; | |
3acf2809 | 1276 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); |
a6c2ba28 AM |
1277 | up(&dev->lock); |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | case VIDIOC_CROPCAP: | |
1282 | { | |
1283 | struct v4l2_cropcap *cc = arg; | |
1284 | ||
1285 | if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
596d92d5 | 1286 | return -EINVAL; |
a6c2ba28 AM |
1287 | cc->bounds.left = 0; |
1288 | cc->bounds.top = 0; | |
1289 | cc->bounds.width = dev->width; | |
1290 | cc->bounds.height = dev->height; | |
1291 | cc->defrect = cc->bounds; | |
1292 | cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ | |
1293 | cc->pixelaspect.denominator = 59; | |
1294 | return 0; | |
1295 | } | |
1296 | case VIDIOC_STREAMON: | |
1297 | { | |
1298 | int *type = arg; | |
1299 | ||
1300 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1301 | || dev->io != IO_MMAP) | |
1302 | return -EINVAL; | |
1303 | ||
1304 | if (list_empty(&dev->inqueue)) | |
1305 | return -EINVAL; | |
1306 | ||
1307 | dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ | |
1308 | ||
eac94356 | 1309 | em28xx_videodbg("VIDIOC_STREAMON: starting stream\n"); |
a6c2ba28 AM |
1310 | |
1311 | return 0; | |
1312 | } | |
1313 | case VIDIOC_STREAMOFF: | |
1314 | { | |
1315 | int *type = arg; | |
1316 | int ret; | |
1317 | ||
1318 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1319 | || dev->io != IO_MMAP) | |
1320 | return -EINVAL; | |
1321 | ||
1322 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1323 | em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream\n"); |
3acf2809 | 1324 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 AM |
1325 | return ret; |
1326 | } | |
3acf2809 | 1327 | em28xx_empty_framequeues(dev); |
a6c2ba28 AM |
1328 | |
1329 | return 0; | |
1330 | } | |
1331 | default: | |
1332 | return v4l_compat_translate_ioctl(inode, filp, cmd, arg, | |
1333 | driver_ioctl); | |
1334 | } | |
1335 | return 0; | |
1336 | } | |
1337 | ||
1338 | /* | |
3acf2809 | 1339 | * em28xx_v4l2_do_ioctl() |
a6c2ba28 | 1340 | * This function is _not_ called directly, but from |
3acf2809 | 1341 | * em28xx_v4l2_ioctl. Userspace |
a6c2ba28 AM |
1342 | * copying is done already, arg is a kernel pointer. |
1343 | */ | |
3acf2809 | 1344 | static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp, |
a6c2ba28 AM |
1345 | unsigned int cmd, void *arg) |
1346 | { | |
3acf2809 | 1347 | struct em28xx *dev = filp->private_data; |
a6c2ba28 AM |
1348 | |
1349 | if (!dev) | |
1350 | return -ENODEV; | |
1351 | ||
1352 | if (video_debug > 1) | |
5e453dc7 | 1353 | v4l_print_ioctl(dev->name,cmd); |
a6c2ba28 AM |
1354 | |
1355 | switch (cmd) { | |
1356 | ||
1357 | /* --- capabilities ------------------------------------------ */ | |
1358 | case VIDIOC_QUERYCAP: | |
1359 | { | |
1360 | struct v4l2_capability *cap = arg; | |
1361 | ||
1362 | memset(cap, 0, sizeof(*cap)); | |
3acf2809 MCC |
1363 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); |
1364 | strlcpy(cap->card, em28xx_boards[dev->model].name, | |
a6c2ba28 AM |
1365 | sizeof(cap->card)); |
1366 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, | |
1367 | sizeof(cap->bus_info)); | |
3acf2809 | 1368 | cap->version = EM28XX_VERSION_CODE; |
a6c2ba28 | 1369 | cap->capabilities = |
e5589bef | 1370 | V4L2_CAP_SLICED_VBI_CAPTURE | |
a6c2ba28 AM |
1371 | V4L2_CAP_VIDEO_CAPTURE | |
1372 | V4L2_CAP_AUDIO | | |
1373 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
1374 | if (dev->has_tuner) | |
1375 | cap->capabilities |= V4L2_CAP_TUNER; | |
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | /* --- capture ioctls ---------------------------------------- */ | |
1380 | case VIDIOC_ENUM_FMT: | |
1381 | { | |
1382 | struct v4l2_fmtdesc *fmtd = arg; | |
1383 | ||
1384 | if (fmtd->index != 0) | |
1385 | return -EINVAL; | |
1386 | memset(fmtd, 0, sizeof(*fmtd)); | |
1387 | fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1388 | strcpy(fmtd->description, "Packed YUY2"); | |
1389 | fmtd->pixelformat = V4L2_PIX_FMT_YUYV; | |
1390 | memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | case VIDIOC_G_FMT: | |
e5589bef | 1395 | return em28xx_get_fmt(dev, (struct v4l2_format *) arg); |
a6c2ba28 AM |
1396 | |
1397 | case VIDIOC_TRY_FMT: | |
1398 | case VIDIOC_S_FMT: | |
1399 | { | |
1400 | struct v4l2_format *format = arg; | |
1401 | u32 i; | |
1402 | int ret = 0; | |
1403 | int width = format->fmt.pix.width; | |
1404 | int height = format->fmt.pix.height; | |
1405 | unsigned int hscale, vscale; | |
1406 | unsigned int maxh, maxw; | |
1407 | ||
1408 | maxw = norm_maxw(dev); | |
1409 | maxh = norm_maxh(dev); | |
1410 | ||
1411 | /* int both_fields; */ | |
1412 | ||
eac94356 | 1413 | em28xx_videodbg("%s: type=%s\n", |
a6c2ba28 AM |
1414 | cmd == |
1415 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1416 | "VIDIOC_S_FMT", | |
1417 | format->type == | |
1418 | V4L2_BUF_TYPE_VIDEO_CAPTURE ? | |
1419 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == | |
1420 | V4L2_BUF_TYPE_VBI_CAPTURE ? | |
1421 | "V4L2_BUF_TYPE_VBI_CAPTURE " : | |
1422 | "not supported"); | |
1423 | ||
1424 | if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1425 | return -EINVAL; | |
1426 | ||
eac94356 | 1427 | em28xx_videodbg("%s: requested %dx%d\n", |
a6c2ba28 AM |
1428 | cmd == |
1429 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1430 | "VIDIOC_S_FMT", format->fmt.pix.width, | |
1431 | format->fmt.pix.height); | |
1432 | ||
1433 | /* FIXME: Move some code away from here */ | |
1434 | /* width must even because of the YUYV format */ | |
1435 | /* height must be even because of interlacing */ | |
1436 | height &= 0xfffe; | |
1437 | width &= 0xfffe; | |
1438 | ||
1439 | if (height < 32) | |
1440 | height = 32; | |
1441 | if (height > maxh) | |
1442 | height = maxh; | |
1443 | if (width < 48) | |
1444 | width = 48; | |
1445 | if (width > maxw) | |
1446 | width = maxw; | |
1447 | ||
74458e6c | 1448 | if(dev->is_em2800){ |
52c02fcd | 1449 | /* the em2800 can only scale down to 50% */ |
74458e6c SS |
1450 | if(height % (maxh / 2)) |
1451 | height=maxh; | |
1452 | if(width % (maxw / 2)) | |
1453 | width=maxw; | |
52c02fcd SS |
1454 | /* according to empiatech support */ |
1455 | /* the MaxPacketSize is to small to support */ | |
1456 | /* framesizes larger than 640x480 @ 30 fps */ | |
1457 | /* or 640x576 @ 25 fps. As this would cut */ | |
1458 | /* of a part of the image we prefer */ | |
1459 | /* 360x576 or 360x480 for now */ | |
74458e6c SS |
1460 | if(width == maxw && height == maxh) |
1461 | width /= 2; | |
1462 | } | |
1463 | ||
a6c2ba28 AM |
1464 | if ((hscale = |
1465 | (((unsigned long)maxw) << 12) / width - 4096L) >= | |
1466 | 0x4000) | |
1467 | hscale = 0x3fff; | |
1468 | width = | |
1469 | (((unsigned long)maxw) << 12) / (hscale + 4096L); | |
1470 | ||
1471 | if ((vscale = | |
1472 | (((unsigned long)maxh) << 12) / height - 4096L) >= | |
1473 | 0x4000) | |
1474 | vscale = 0x3fff; | |
1475 | height = | |
1476 | (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
1477 | ||
1478 | format->fmt.pix.width = width; | |
1479 | format->fmt.pix.height = height; | |
1480 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
1481 | format->fmt.pix.bytesperline = width * 2; | |
1482 | format->fmt.pix.sizeimage = width * 2 * height; | |
1483 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
1484 | format->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
1485 | ||
eac94356 | 1486 | em28xx_videodbg("%s: returned %dx%d (%d, %d)\n", |
a6c2ba28 AM |
1487 | cmd == |
1488 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : | |
1489 | "VIDIOC_S_FMT", format->fmt.pix.width, | |
1490 | format->fmt.pix.height, hscale, vscale); | |
1491 | ||
1492 | if (cmd == VIDIOC_TRY_FMT) | |
1493 | return 0; | |
1494 | ||
1495 | for (i = 0; i < dev->num_frames; i++) | |
1496 | if (dev->frame[i].vma_use_count) { | |
3acf2809 | 1497 | em28xx_videodbg("VIDIOC_S_FMT failed. " |
eac94356 | 1498 | "Unmap the buffers first.\n"); |
a6c2ba28 AM |
1499 | return -EINVAL; |
1500 | } | |
1501 | ||
1502 | /* stop io in case it is already in progress */ | |
1503 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1504 | em28xx_videodbg("VIDIOC_SET_FMT: interupting stream\n"); |
3acf2809 | 1505 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 AM |
1506 | return ret; |
1507 | } | |
1508 | ||
3acf2809 | 1509 | em28xx_release_buffers(dev); |
a6c2ba28 AM |
1510 | dev->io = IO_NONE; |
1511 | ||
1512 | /* set new image size */ | |
1513 | dev->width = width; | |
1514 | dev->height = height; | |
1515 | dev->frame_size = dev->width * dev->height * 2; | |
1516 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ | |
1517 | dev->bytesperline = dev->width * 2; | |
1518 | dev->hscale = hscale; | |
1519 | dev->vscale = vscale; | |
1520 | /* dev->both_fileds = both_fileds; */ | |
3acf2809 MCC |
1521 | em28xx_uninit_isoc(dev); |
1522 | em28xx_set_alternate(dev); | |
1523 | em28xx_capture_start(dev, 1); | |
1524 | em28xx_resolution_set(dev); | |
1525 | em28xx_init_isoc(dev); | |
a6c2ba28 AM |
1526 | |
1527 | return 0; | |
1528 | } | |
1529 | ||
1530 | /* --- streaming capture ------------------------------------- */ | |
1531 | case VIDIOC_REQBUFS: | |
1532 | { | |
1533 | struct v4l2_requestbuffers *rb = arg; | |
1534 | u32 i; | |
1535 | int ret; | |
1536 | ||
1537 | if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1538 | rb->memory != V4L2_MEMORY_MMAP) | |
1539 | return -EINVAL; | |
1540 | ||
1541 | if (dev->io == IO_READ) { | |
3acf2809 | 1542 | em28xx_videodbg ("method is set to read;" |
a6c2ba28 | 1543 | " close and open the device again to" |
eac94356 | 1544 | " choose the mmap I/O method\n"); |
a6c2ba28 AM |
1545 | return -EINVAL; |
1546 | } | |
1547 | ||
1548 | for (i = 0; i < dev->num_frames; i++) | |
1549 | if (dev->frame[i].vma_use_count) { | |
eac94356 | 1550 | em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped\n"); |
a6c2ba28 AM |
1551 | return -EINVAL; |
1552 | } | |
1553 | ||
1554 | if (dev->stream == STREAM_ON) { | |
eac94356 | 1555 | em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n"); |
3acf2809 | 1556 | if ((ret = em28xx_stream_interrupt(dev))) |
a6c2ba28 AM |
1557 | return ret; |
1558 | } | |
1559 | ||
3acf2809 | 1560 | em28xx_empty_framequeues(dev); |
a6c2ba28 | 1561 | |
3acf2809 | 1562 | em28xx_release_buffers(dev); |
a6c2ba28 AM |
1563 | if (rb->count) |
1564 | rb->count = | |
3acf2809 | 1565 | em28xx_request_buffers(dev, rb->count); |
a6c2ba28 AM |
1566 | |
1567 | dev->frame_current = NULL; | |
1568 | ||
eac94356 | 1569 | em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i\n", |
a6c2ba28 AM |
1570 | rb->count); |
1571 | dev->io = rb->count ? IO_MMAP : IO_NONE; | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | case VIDIOC_QUERYBUF: | |
1576 | { | |
1577 | struct v4l2_buffer *b = arg; | |
1578 | ||
1579 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1580 | b->index >= dev->num_frames || dev->io != IO_MMAP) | |
1581 | return -EINVAL; | |
1582 | ||
1583 | memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); | |
1584 | ||
1585 | if (dev->frame[b->index].vma_use_count) { | |
1586 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
1587 | } | |
1588 | if (dev->frame[b->index].state == F_DONE) | |
1589 | b->flags |= V4L2_BUF_FLAG_DONE; | |
1590 | else if (dev->frame[b->index].state != F_UNUSED) | |
1591 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
1592 | return 0; | |
1593 | } | |
1594 | case VIDIOC_QBUF: | |
1595 | { | |
1596 | struct v4l2_buffer *b = arg; | |
1597 | unsigned long lock_flags; | |
1598 | ||
1599 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1600 | b->index >= dev->num_frames || dev->io != IO_MMAP) { | |
1601 | return -EINVAL; | |
1602 | } | |
1603 | ||
1604 | if (dev->frame[b->index].state != F_UNUSED) { | |
1605 | return -EAGAIN; | |
1606 | } | |
1607 | dev->frame[b->index].state = F_QUEUED; | |
1608 | ||
1609 | /* add frame to fifo */ | |
1610 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
1611 | list_add_tail(&dev->frame[b->index].frame, | |
1612 | &dev->inqueue); | |
1613 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | case VIDIOC_DQBUF: | |
1618 | { | |
1619 | struct v4l2_buffer *b = arg; | |
3acf2809 | 1620 | struct em28xx_frame_t *f; |
a6c2ba28 AM |
1621 | unsigned long lock_flags; |
1622 | int ret = 0; | |
1623 | ||
1624 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE | |
1625 | || dev->io != IO_MMAP) | |
1626 | return -EINVAL; | |
1627 | ||
1628 | if (list_empty(&dev->outqueue)) { | |
1629 | if (dev->stream == STREAM_OFF) | |
1630 | return -EINVAL; | |
1631 | if (filp->f_flags & O_NONBLOCK) | |
1632 | return -EAGAIN; | |
1633 | ret = wait_event_interruptible | |
1634 | (dev->wait_frame, | |
1635 | (!list_empty(&dev->outqueue)) || | |
1636 | (dev->state & DEV_DISCONNECTED)); | |
1637 | if (ret) | |
1638 | return ret; | |
1639 | if (dev->state & DEV_DISCONNECTED) | |
1640 | return -ENODEV; | |
1641 | } | |
1642 | ||
1643 | spin_lock_irqsave(&dev->queue_lock, lock_flags); | |
1644 | f = list_entry(dev->outqueue.next, | |
3acf2809 | 1645 | struct em28xx_frame_t, frame); |
a6c2ba28 AM |
1646 | list_del(dev->outqueue.next); |
1647 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); | |
1648 | ||
1649 | f->state = F_UNUSED; | |
1650 | memcpy(b, &f->buf, sizeof(*b)); | |
1651 | ||
1652 | if (f->vma_use_count) | |
1653 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
1654 | ||
1655 | return 0; | |
1656 | } | |
1657 | default: | |
3acf2809 MCC |
1658 | return em28xx_do_ioctl(inode, filp, dev, cmd, arg, |
1659 | em28xx_video_do_ioctl); | |
a6c2ba28 AM |
1660 | } |
1661 | return 0; | |
1662 | } | |
1663 | ||
1664 | /* | |
3acf2809 MCC |
1665 | * em28xx_v4l2_ioctl() |
1666 | * handle v4l2 ioctl the main action happens in em28xx_v4l2_do_ioctl() | |
a6c2ba28 | 1667 | */ |
3acf2809 | 1668 | static int em28xx_v4l2_ioctl(struct inode *inode, struct file *filp, |
a6c2ba28 AM |
1669 | unsigned int cmd, unsigned long arg) |
1670 | { | |
a6c2ba28 | 1671 | int ret = 0; |
3acf2809 | 1672 | struct em28xx *dev = filp->private_data; |
a6c2ba28 AM |
1673 | |
1674 | if (down_interruptible(&dev->fileop_lock)) | |
1675 | return -ERESTARTSYS; | |
1676 | ||
1677 | if (dev->state & DEV_DISCONNECTED) { | |
3acf2809 | 1678 | em28xx_errdev("v4l2 ioctl: device not present\n"); |
a6c2ba28 AM |
1679 | up(&dev->fileop_lock); |
1680 | return -ENODEV; | |
1681 | } | |
1682 | ||
1683 | if (dev->state & DEV_MISCONFIGURED) { | |
3acf2809 | 1684 | em28xx_errdev |
a6c2ba28 AM |
1685 | ("v4l2 ioctl: device is misconfigured; close and open it again\n"); |
1686 | up(&dev->fileop_lock); | |
1687 | return -EIO; | |
1688 | } | |
1689 | ||
3acf2809 | 1690 | ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl); |
a6c2ba28 AM |
1691 | |
1692 | up(&dev->fileop_lock); | |
1693 | ||
1694 | return ret; | |
1695 | } | |
1696 | ||
3acf2809 | 1697 | static struct file_operations em28xx_v4l_fops = { |
a6c2ba28 | 1698 | .owner = THIS_MODULE, |
3acf2809 MCC |
1699 | .open = em28xx_v4l2_open, |
1700 | .release = em28xx_v4l2_close, | |
1701 | .ioctl = em28xx_v4l2_ioctl, | |
1702 | .read = em28xx_v4l2_read, | |
1703 | .poll = em28xx_v4l2_poll, | |
1704 | .mmap = em28xx_v4l2_mmap, | |
a6c2ba28 | 1705 | .llseek = no_llseek, |
17cbe2e5 MCC |
1706 | .compat_ioctl = v4l_compat_ioctl32, |
1707 | ||
a6c2ba28 AM |
1708 | }; |
1709 | ||
1710 | /******************************** usb interface *****************************************/ | |
1711 | ||
1712 | /* | |
3acf2809 | 1713 | * em28xx_init_dev() |
a6c2ba28 AM |
1714 | * allocates and inits the device structs, registers i2c bus and v4l device |
1715 | */ | |
3acf2809 | 1716 | static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, |
a6c2ba28 AM |
1717 | int minor, int model) |
1718 | { | |
3acf2809 | 1719 | struct em28xx *dev = *devhandle; |
a6c2ba28 AM |
1720 | int retval = -ENOMEM; |
1721 | int errCode, i; | |
1722 | unsigned int maxh, maxw; | |
a6c2ba28 | 1723 | |
a6c2ba28 AM |
1724 | dev->udev = udev; |
1725 | dev->model = model; | |
1726 | init_MUTEX(&dev->lock); | |
1727 | init_waitqueue_head(&dev->open); | |
1728 | ||
3acf2809 MCC |
1729 | dev->em28xx_write_regs = em28xx_write_regs; |
1730 | dev->em28xx_read_reg = em28xx_read_reg; | |
1731 | dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; | |
1732 | dev->em28xx_write_regs_req = em28xx_write_regs_req; | |
1733 | dev->em28xx_read_reg_req = em28xx_read_reg_req; | |
1734 | dev->is_em2800 = em28xx_boards[model].is_em2800; | |
1735 | dev->has_tuner = em28xx_boards[model].has_tuner; | |
1736 | dev->has_msp34xx = em28xx_boards[model].has_msp34xx; | |
1737 | dev->tda9887_conf = em28xx_boards[model].tda9887_conf; | |
1738 | dev->decoder = em28xx_boards[model].decoder; | |
a6c2ba28 AM |
1739 | |
1740 | if (tuner >= 0) | |
1741 | dev->tuner_type = tuner; | |
1742 | else | |
3acf2809 | 1743 | dev->tuner_type = em28xx_boards[model].tuner_type; |
a6c2ba28 | 1744 | |
3acf2809 | 1745 | dev->video_inputs = em28xx_boards[model].vchannels; |
a6c2ba28 AM |
1746 | |
1747 | for (i = 0; i < TVNORMS; i++) | |
3acf2809 | 1748 | if (em28xx_boards[model].norm == tvnorms[i].mode) |
a6c2ba28 AM |
1749 | break; |
1750 | if (i == TVNORMS) | |
1751 | i = 0; | |
1752 | ||
1753 | dev->tvnorm = &tvnorms[i]; /* set default norm */ | |
1754 | ||
3acf2809 | 1755 | em28xx_videodbg("tvnorm=%s\n", dev->tvnorm->name); |
a6c2ba28 AM |
1756 | |
1757 | maxw = norm_maxw(dev); | |
1758 | maxh = norm_maxh(dev); | |
1759 | ||
1760 | /* set default image size */ | |
1761 | dev->width = maxw; | |
1762 | dev->height = maxh; | |
3acf2809 | 1763 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; |
a6c2ba28 AM |
1764 | dev->field_size = dev->width * dev->height; |
1765 | dev->frame_size = | |
1766 | dev->interlaced ? dev->field_size << 1 : dev->field_size; | |
1767 | dev->bytesperline = dev->width * 2; | |
1768 | dev->hscale = 0; | |
1769 | dev->vscale = 0; | |
1770 | dev->ctl_input = 2; | |
1771 | ||
1772 | /* setup video picture settings for saa7113h */ | |
1773 | memset(&dev->vpic, 0, sizeof(dev->vpic)); | |
1774 | dev->vpic.colour = 128 << 8; | |
1775 | dev->vpic.hue = 128 << 8; | |
1776 | dev->vpic.brightness = 128 << 8; | |
1777 | dev->vpic.contrast = 192 << 8; | |
1778 | dev->vpic.whiteness = 128 << 8; /* This one isn't used */ | |
1779 | dev->vpic.depth = 16; | |
1780 | dev->vpic.palette = VIDEO_PALETTE_YUV422; | |
1781 | ||
a6c2ba28 AM |
1782 | #ifdef CONFIG_MODULES |
1783 | /* request some modules */ | |
3acf2809 | 1784 | if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114) |
91cad0f2 | 1785 | request_module("saa711x"); |
3acf2809 | 1786 | if (dev->decoder == EM28XX_TVP5150) |
a6c2ba28 AM |
1787 | request_module("tvp5150"); |
1788 | if (dev->has_tuner) | |
1789 | request_module("tuner"); | |
1790 | if (dev->tda9887_conf) | |
1791 | request_module("tda9887"); | |
1792 | #endif | |
3acf2809 | 1793 | errCode = em28xx_config(dev); |
a6c2ba28 | 1794 | if (errCode) { |
3acf2809 | 1795 | em28xx_errdev("error configuring device\n"); |
a6c2ba28 | 1796 | kfree(dev); |
e5589bef | 1797 | em28xx_devused&=~(1<<dev->devno); |
a6c2ba28 AM |
1798 | return -ENOMEM; |
1799 | } | |
1800 | ||
1801 | down(&dev->lock); | |
1802 | /* register i2c bus */ | |
3acf2809 | 1803 | em28xx_i2c_register(dev); |
a6c2ba28 AM |
1804 | |
1805 | /* Do board specific init and eeprom reading */ | |
3acf2809 | 1806 | em28xx_card_setup(dev); |
a6c2ba28 AM |
1807 | |
1808 | /* configure the device */ | |
3acf2809 | 1809 | em28xx_config_i2c(dev); |
a6c2ba28 AM |
1810 | |
1811 | up(&dev->lock); | |
1812 | ||
3acf2809 | 1813 | errCode = em28xx_config(dev); |
a6c2ba28 AM |
1814 | |
1815 | #ifdef CONFIG_MODULES | |
1816 | if (dev->has_msp34xx) | |
1817 | request_module("msp3400"); | |
1818 | #endif | |
1819 | /* allocate and fill v4l2 device struct */ | |
1820 | dev->vdev = video_device_alloc(); | |
1821 | if (NULL == dev->vdev) { | |
3acf2809 | 1822 | em28xx_errdev("cannot allocate video_device.\n"); |
a6c2ba28 | 1823 | kfree(dev); |
e5589bef MCC |
1824 | em28xx_devused&=~(1<<dev->devno); |
1825 | return -ENOMEM; | |
1826 | } | |
1827 | ||
1828 | dev->vbi_dev = video_device_alloc(); | |
1829 | if (NULL == dev->vbi_dev) { | |
1830 | em28xx_errdev("cannot allocate video_device.\n"); | |
1831 | kfree(dev->vdev); | |
1832 | kfree(dev); | |
1833 | em28xx_devused&=~(1<<dev->devno); | |
a6c2ba28 AM |
1834 | return -ENOMEM; |
1835 | } | |
1836 | ||
e5589bef MCC |
1837 | /* Fills VBI device info */ |
1838 | dev->vbi_dev->type = VFL_TYPE_VBI; | |
1839 | dev->vbi_dev->hardware = 0; | |
1840 | dev->vbi_dev->fops = &em28xx_v4l_fops; | |
1841 | dev->vbi_dev->minor = -1; | |
1842 | dev->vbi_dev->dev = &dev->udev->dev; | |
1843 | dev->vbi_dev->release = video_device_release; | |
1844 | snprintf(dev->vbi_dev->name, sizeof(dev->vbi_dev->name), "%s#%d %s", | |
1845 | "em28xx",dev->devno,"vbi"); | |
1846 | ||
1847 | /* Fills CAPTURE device info */ | |
a6c2ba28 AM |
1848 | dev->vdev->type = VID_TYPE_CAPTURE; |
1849 | if (dev->has_tuner) | |
1850 | dev->vdev->type |= VID_TYPE_TUNER; | |
1851 | dev->vdev->hardware = 0; | |
3acf2809 | 1852 | dev->vdev->fops = &em28xx_v4l_fops; |
a6c2ba28 AM |
1853 | dev->vdev->minor = -1; |
1854 | dev->vdev->dev = &dev->udev->dev; | |
1855 | dev->vdev->release = video_device_release; | |
e5589bef MCC |
1856 | snprintf(dev->vdev->name, sizeof(dev->vbi_dev->name), "%s#%d %s", |
1857 | "em28xx",dev->devno,"video"); | |
1858 | ||
3acf2809 | 1859 | list_add_tail(&dev->devlist,&em28xx_devlist); |
a6c2ba28 AM |
1860 | |
1861 | /* register v4l2 device */ | |
1862 | down(&dev->lock); | |
e5589bef MCC |
1863 | if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, |
1864 | video_nr[dev->devno]))) { | |
3acf2809 | 1865 | em28xx_errdev("unable to register video device (error=%i).\n", |
a6c2ba28 AM |
1866 | retval); |
1867 | up(&dev->lock); | |
9c75541f | 1868 | list_del(&dev->devlist); |
a6c2ba28 AM |
1869 | video_device_release(dev->vdev); |
1870 | kfree(dev); | |
e5589bef | 1871 | em28xx_devused&=~(1<<dev->devno); |
a6c2ba28 AM |
1872 | return -ENODEV; |
1873 | } | |
e5589bef MCC |
1874 | |
1875 | if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI, | |
1876 | vbi_nr[dev->devno]) < 0) { | |
1877 | printk("unable to register vbi device\n"); | |
1878 | up(&dev->lock); | |
1879 | list_del(&dev->devlist); | |
1880 | video_device_release(dev->vbi_dev); | |
1881 | video_device_release(dev->vdev); | |
1882 | kfree(dev); | |
1883 | em28xx_devused&=~(1<<dev->devno); | |
1884 | return -ENODEV; | |
1885 | } else { | |
1886 | printk("registered VBI\n"); | |
1887 | } | |
1888 | ||
a6c2ba28 AM |
1889 | if (dev->has_msp34xx) { |
1890 | /* Send a reset to other chips via gpio */ | |
3acf2809 | 1891 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); |
a6c2ba28 | 1892 | udelay(2500); |
3acf2809 | 1893 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); |
a6c2ba28 AM |
1894 | udelay(2500); |
1895 | ||
1896 | } | |
1897 | video_mux(dev, 0); | |
1898 | ||
1899 | up(&dev->lock); | |
1900 | ||
e5589bef MCC |
1901 | em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n", |
1902 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
1903 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
a6c2ba28 | 1904 | |
a6c2ba28 AM |
1905 | return 0; |
1906 | } | |
1907 | ||
1908 | /* | |
3acf2809 | 1909 | * em28xx_usb_probe() |
a6c2ba28 AM |
1910 | * checks for supported devices |
1911 | */ | |
3acf2809 | 1912 | static int em28xx_usb_probe(struct usb_interface *interface, |
a6c2ba28 AM |
1913 | const struct usb_device_id *id) |
1914 | { | |
1915 | const struct usb_endpoint_descriptor *endpoint; | |
1916 | struct usb_device *udev; | |
9d4d9c05 | 1917 | struct usb_interface *uif; |
3acf2809 | 1918 | struct em28xx *dev = NULL; |
a6c2ba28 | 1919 | int retval = -ENODEV; |
d5e52653 | 1920 | int model,i,nr,ifnum; |
a6c2ba28 AM |
1921 | |
1922 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
d5e52653 MCC |
1923 | ifnum = interface->altsetting[0].desc.bInterfaceNumber; |
1924 | ||
e5589bef MCC |
1925 | /* Check to see next free device and mark as used */ |
1926 | nr=find_first_zero_bit(&em28xx_devused,EM28XX_MAXBOARDS); | |
1927 | em28xx_devused|=1<<nr; | |
a6c2ba28 | 1928 | |
596d92d5 | 1929 | /* Don't register audio interfaces */ |
91cad0f2 | 1930 | if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { |
3acf2809 | 1931 | em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
1932 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
1933 | ifnum, | |
1934 | interface->altsetting[0].desc.bInterfaceClass); | |
e5589bef MCC |
1935 | |
1936 | em28xx_devused&=~(1<<nr); | |
596d92d5 | 1937 | return -ENODEV; |
91cad0f2 MCC |
1938 | } |
1939 | ||
3acf2809 | 1940 | em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
1941 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
1942 | ifnum, | |
1943 | interface->altsetting[0].desc.bInterfaceClass); | |
596d92d5 | 1944 | |
d5e52653 MCC |
1945 | endpoint = &interface->cur_altsetting->endpoint[1].desc; |
1946 | ||
a6c2ba28 AM |
1947 | /* check if the the device has the iso in endpoint at the correct place */ |
1948 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != | |
1949 | USB_ENDPOINT_XFER_ISOC) { | |
3acf2809 | 1950 | em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); |
e5589bef | 1951 | em28xx_devused&=~(1<<nr); |
a6c2ba28 AM |
1952 | return -ENODEV; |
1953 | } | |
1954 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { | |
3acf2809 | 1955 | em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); |
e5589bef | 1956 | em28xx_devused&=~(1<<nr); |
a6c2ba28 AM |
1957 | return -ENODEV; |
1958 | } | |
1959 | ||
596d92d5 | 1960 | model=id->driver_info; |
596d92d5 | 1961 | |
e5589bef | 1962 | if (nr > EM28XX_MAXBOARDS) { |
9d4d9c05 | 1963 | printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS); |
e5589bef | 1964 | em28xx_devused&=~(1<<nr); |
596d92d5 MCC |
1965 | return -ENOMEM; |
1966 | } | |
1967 | ||
1968 | /* allocate memory for our device state and initialize it */ | |
7408187d | 1969 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
596d92d5 | 1970 | if (dev == NULL) { |
3acf2809 | 1971 | em28xx_err(DRIVER_NAME ": out of memory!\n"); |
e5589bef | 1972 | em28xx_devused&=~(1<<nr); |
596d92d5 MCC |
1973 | return -ENOMEM; |
1974 | } | |
596d92d5 | 1975 | |
e5589bef MCC |
1976 | snprintf(dev->name, 29, "em28xx #%d", nr); |
1977 | dev->devno=nr; | |
1978 | ||
9d4d9c05 MCC |
1979 | /* compute alternate max packet sizes */ |
1980 | uif = udev->actconfig->interface[0]; | |
1981 | ||
1982 | dev->num_alt=uif->num_altsetting; | |
e5589bef | 1983 | em28xx_info("Alternate settings: %i\n",dev->num_alt); |
9d4d9c05 MCC |
1984 | // dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* |
1985 | dev->alt_max_pkt_size = kmalloc(32* | |
1986 | dev->num_alt,GFP_KERNEL); | |
1987 | if (dev->alt_max_pkt_size == NULL) { | |
e5589bef MCC |
1988 | em28xx_errdev("out of memory!\n"); |
1989 | em28xx_devused&=~(1<<nr); | |
9d4d9c05 MCC |
1990 | return -ENOMEM; |
1991 | } | |
1992 | ||
1993 | for (i = 0; i < dev->num_alt ; i++) { | |
1994 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
1995 | wMaxPacketSize); | |
1996 | dev->alt_max_pkt_size[i] = | |
1997 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
e5589bef | 1998 | em28xx_info("Alternate setting %i, max size= %i\n",i, |
9d4d9c05 MCC |
1999 | dev->alt_max_pkt_size[i]); |
2000 | } | |
2001 | ||
3acf2809 | 2002 | if ((card[nr]>=0)&&(card[nr]<em28xx_bcount)) |
596d92d5 MCC |
2003 | model=card[nr]; |
2004 | ||
2005 | if ((model==EM2800_BOARD_UNKNOWN)||(model==EM2820_BOARD_UNKNOWN)) { | |
e5589bef | 2006 | em28xx_errdev( "Your board has no eeprom inside it and thus can't\n" |
596d92d5 MCC |
2007 | "%s: be autodetected. Please pass card=<n> insmod option to\n" |
2008 | "%s: workaround that. Redirect complaints to the vendor of\n" | |
e5589bef MCC |
2009 | "%s: the TV card. Generic type will be used." |
2010 | "%s: Best regards,\n" | |
596d92d5 MCC |
2011 | "%s: -- tux\n", |
2012 | dev->name,dev->name,dev->name,dev->name,dev->name); | |
e5589bef | 2013 | em28xx_errdev("%s: Here is a list of valid choices for the card=<n> insmod option:\n", |
596d92d5 | 2014 | dev->name); |
3acf2809 | 2015 | for (i = 0; i < em28xx_bcount; i++) { |
e5589bef MCC |
2016 | em28xx_errdev(" card=%d -> %s\n", i, |
2017 | em28xx_boards[i].name); | |
596d92d5 MCC |
2018 | } |
2019 | } | |
2020 | ||
a6c2ba28 | 2021 | /* allocate device struct */ |
3acf2809 | 2022 | retval = em28xx_init_dev(&dev, udev, nr, model); |
a6c2ba28 AM |
2023 | if (retval) |
2024 | return retval; | |
2025 | ||
3acf2809 | 2026 | em28xx_info("Found %s\n", em28xx_boards[model].name); |
a6c2ba28 AM |
2027 | |
2028 | /* save our data pointer in this interface device */ | |
2029 | usb_set_intfdata(interface, dev); | |
2030 | return 0; | |
2031 | } | |
2032 | ||
2033 | /* | |
3acf2809 | 2034 | * em28xx_usb_disconnect() |
a6c2ba28 AM |
2035 | * called when the device gets diconencted |
2036 | * video device will be unregistered on v4l2_close in case it is still open | |
2037 | */ | |
3acf2809 | 2038 | static void em28xx_usb_disconnect(struct usb_interface *interface) |
a6c2ba28 | 2039 | { |
3acf2809 | 2040 | struct em28xx *dev = usb_get_intfdata(interface); |
a6c2ba28 AM |
2041 | usb_set_intfdata(interface, NULL); |
2042 | ||
2043 | if (!dev) | |
2044 | return; | |
2045 | ||
3acf2809 | 2046 | down_write(&em28xx_disconnect); |
a6c2ba28 AM |
2047 | |
2048 | down(&dev->lock); | |
2049 | ||
3acf2809 | 2050 | em28xx_info("disconnecting %s\n", dev->vdev->name); |
a6c2ba28 AM |
2051 | |
2052 | wake_up_interruptible_all(&dev->open); | |
2053 | ||
2054 | if (dev->users) { | |
3acf2809 | 2055 | em28xx_warn |
a6c2ba28 | 2056 | ("device /dev/video%d is open! Deregistration and memory " |
e5589bef MCC |
2057 | "deallocation are deferred on close.\n", |
2058 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN); | |
2059 | ||
a6c2ba28 | 2060 | dev->state |= DEV_MISCONFIGURED; |
3acf2809 | 2061 | em28xx_uninit_isoc(dev); |
a6c2ba28 AM |
2062 | dev->state |= DEV_DISCONNECTED; |
2063 | wake_up_interruptible(&dev->wait_frame); | |
2064 | wake_up_interruptible(&dev->wait_stream); | |
2065 | } else { | |
2066 | dev->state |= DEV_DISCONNECTED; | |
3acf2809 | 2067 | em28xx_release_resources(dev); |
a6c2ba28 AM |
2068 | } |
2069 | ||
2070 | up(&dev->lock); | |
2071 | ||
9d4d9c05 MCC |
2072 | if (!dev->users) { |
2073 | kfree(dev->alt_max_pkt_size); | |
a6c2ba28 | 2074 | kfree(dev); |
9d4d9c05 | 2075 | } |
a6c2ba28 | 2076 | |
3acf2809 | 2077 | up_write(&em28xx_disconnect); |
a6c2ba28 AM |
2078 | } |
2079 | ||
3acf2809 | 2080 | static struct usb_driver em28xx_usb_driver = { |
3acf2809 MCC |
2081 | .name = "em28xx", |
2082 | .probe = em28xx_usb_probe, | |
2083 | .disconnect = em28xx_usb_disconnect, | |
2084 | .id_table = em28xx_id_table, | |
a6c2ba28 AM |
2085 | }; |
2086 | ||
3acf2809 | 2087 | static int __init em28xx_module_init(void) |
a6c2ba28 AM |
2088 | { |
2089 | int result; | |
2090 | ||
2091 | printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", | |
3acf2809 MCC |
2092 | (EM28XX_VERSION_CODE >> 16) & 0xff, |
2093 | (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); | |
a6c2ba28 AM |
2094 | #ifdef SNAPSHOT |
2095 | printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", | |
2096 | SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); | |
2097 | #endif | |
2098 | ||
2099 | /* register this driver with the USB subsystem */ | |
3acf2809 | 2100 | result = usb_register(&em28xx_usb_driver); |
a6c2ba28 | 2101 | if (result) |
3acf2809 | 2102 | em28xx_err(DRIVER_NAME |
a6c2ba28 AM |
2103 | " usb_register failed. Error number %d.\n", result); |
2104 | ||
2105 | return result; | |
2106 | } | |
2107 | ||
3acf2809 | 2108 | static void __exit em28xx_module_exit(void) |
a6c2ba28 AM |
2109 | { |
2110 | /* deregister this driver with the USB subsystem */ | |
3acf2809 | 2111 | usb_deregister(&em28xx_usb_driver); |
a6c2ba28 AM |
2112 | } |
2113 | ||
3acf2809 MCC |
2114 | module_init(em28xx_module_init); |
2115 | module_exit(em28xx_module_exit); |