Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
d203a7ec | 2 | * Driver for the VINO (Video In No Out) system found in SGI Indys. |
1da177e4 LT |
3 | * |
4 | * This file is subject to the terms and conditions of the GNU General Public | |
5 | * License version 2 as published by the Free Software Foundation. | |
6 | * | |
d203a7ec RB |
7 | * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> |
8 | * | |
9 | * Based on the previous version of the driver for 2.4 kernels by: | |
1da177e4 LT |
10 | * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> |
11 | */ | |
12 | ||
d203a7ec RB |
13 | /* |
14 | * TODO: | |
15 | * - remove "hacks" from memory allocation code and implement nopage() | |
16 | * - check decimation, calculating and reporting image size when | |
17 | * using decimation | |
18 | * - check vino_acquire_input(), vino_set_input() and channel | |
19 | * ownership handling | |
20 | * - report VINO error-interrupts via ioctls ? | |
21 | * - implement picture controls (all implemented?) | |
22 | * - use macros for boolean values (?) | |
23 | * - implement user mode buffers and overlay (?) | |
24 | */ | |
25 | ||
1da177e4 | 26 | #include <linux/init.h> |
d203a7ec | 27 | #include <linux/module.h> |
1da177e4 | 28 | #include <linux/delay.h> |
495515b3 | 29 | #include <linux/dma-mapping.h> |
d203a7ec RB |
30 | #include <linux/errno.h> |
31 | #include <linux/fs.h> | |
495515b3 | 32 | #include <linux/interrupt.h> |
d203a7ec RB |
33 | #include <linux/kernel.h> |
34 | #include <linux/mm.h> | |
d203a7ec | 35 | #include <linux/moduleparam.h> |
495515b3 LM |
36 | #include <linux/time.h> |
37 | #include <linux/version.h> | |
d203a7ec RB |
38 | |
39 | #ifdef CONFIG_KMOD | |
40 | #include <linux/kmod.h> | |
41 | #endif | |
42 | ||
1da177e4 LT |
43 | #include <linux/i2c.h> |
44 | #include <linux/i2c-algo-sgi.h> | |
45 | ||
d203a7ec RB |
46 | #include <linux/videodev.h> |
47 | #include <linux/videodev2.h> | |
48 | #include <linux/video_decoder.h> | |
49 | ||
1da177e4 LT |
50 | #include <asm/paccess.h> |
51 | #include <asm/io.h> | |
52 | #include <asm/sgi/ip22.h> | |
1da177e4 LT |
53 | #include <asm/sgi/mc.h> |
54 | ||
55 | #include "vino.h" | |
d203a7ec RB |
56 | #include "saa7191.h" |
57 | #include "indycam.h" | |
1da177e4 | 58 | |
d203a7ec RB |
59 | /* Uncomment the following line to get lots and lots of (mostly useless) |
60 | * debug info. | |
61 | * Note that the debug output also slows down the driver significantly */ | |
62 | // #define VINO_DEBUG | |
63 | ||
64 | #define VINO_MODULE_VERSION "0.0.3" | |
65 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 3) | |
66 | ||
67 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); | |
68 | MODULE_VERSION(VINO_MODULE_VERSION); | |
69 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
70 | MODULE_LICENSE("GPL"); | |
71 | ||
72 | #define mem_map_reserve(p) set_bit(PG_reserved, &((p)->flags)) | |
73 | #define mem_map_unreserve(p) clear_bit(PG_reserved, &((p)->flags)) | |
74 | ||
75 | #ifdef VINO_DEBUG | |
76 | #define dprintk(x...) printk("VINO: " x); | |
1da177e4 | 77 | #else |
d203a7ec | 78 | #define dprintk(x...) |
1da177e4 LT |
79 | #endif |
80 | ||
d203a7ec RB |
81 | #define VINO_NO_CHANNEL 0 |
82 | #define VINO_CHANNEL_A 1 | |
83 | #define VINO_CHANNEL_B 2 | |
84 | ||
85 | #define VINO_PAL_WIDTH 768 | |
86 | #define VINO_PAL_HEIGHT 576 | |
87 | #define VINO_NTSC_WIDTH 640 | |
88 | #define VINO_NTSC_HEIGHT 480 | |
89 | ||
90 | #define VINO_MIN_WIDTH 32 | |
91 | #define VINO_MIN_HEIGHT 32 | |
92 | ||
93 | #define VINO_CLIPPING_START_ODD_D1 1 | |
94 | #define VINO_CLIPPING_START_ODD_PAL 1 | |
95 | #define VINO_CLIPPING_START_ODD_NTSC 1 | |
96 | ||
97 | #define VINO_CLIPPING_START_EVEN_D1 2 | |
98 | #define VINO_CLIPPING_START_EVEN_PAL 2 | |
99 | #define VINO_CLIPPING_START_EVEN_NTSC 2 | |
100 | ||
101 | #define VINO_INPUT_CHANNEL_COUNT 3 | |
102 | ||
103 | #define VINO_INPUT_NONE -1 | |
104 | #define VINO_INPUT_COMPOSITE 0 | |
105 | #define VINO_INPUT_SVIDEO 1 | |
106 | #define VINO_INPUT_D1 2 | |
107 | ||
108 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) | |
109 | ||
110 | #define VINO_FIFO_THRESHOLD_DEFAULT 512 | |
111 | ||
112 | /*#define VINO_FRAMEBUFFER_SIZE (VINO_PAL_WIDTH * VINO_PAL_HEIGHT * 4 \ | |
113 | + 2 * PAGE_SIZE)*/ | |
114 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ | |
115 | * VINO_PAL_HEIGHT * 4 \ | |
116 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) | |
117 | ||
118 | #define VINO_FRAMEBUFFER_MAX_COUNT 8 | |
119 | ||
120 | #define VINO_FRAMEBUFFER_UNUSED 0 | |
121 | #define VINO_FRAMEBUFFER_IN_USE 1 | |
122 | #define VINO_FRAMEBUFFER_READY 2 | |
123 | ||
124 | #define VINO_QUEUE_ERROR -1 | |
125 | #define VINO_QUEUE_MAGIC 0x20050125 | |
126 | ||
127 | #define VINO_MEMORY_NONE 0 | |
128 | #define VINO_MEMORY_MMAP 1 | |
129 | #define VINO_MEMORY_USERPTR 2 | |
130 | ||
131 | #define VINO_DUMMY_DESC_COUNT 4 | |
132 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ | |
133 | ||
134 | /* the number is the index for vino_data_formats */ | |
135 | #define VINO_DATA_FMT_NONE -1 | |
136 | #define VINO_DATA_FMT_GREY 0 | |
137 | #define VINO_DATA_FMT_RGB332 1 | |
138 | #define VINO_DATA_FMT_RGB32 2 | |
139 | #define VINO_DATA_FMT_YUV 3 | |
140 | //#define VINO_DATA_FMT_RGB24 4 | |
141 | ||
142 | #define VINO_DATA_FMT_COUNT 4 | |
143 | ||
144 | #define VINO_DATA_NORM_NONE -1 | |
145 | #define VINO_DATA_NORM_NTSC 0 | |
146 | #define VINO_DATA_NORM_PAL 1 | |
147 | #define VINO_DATA_NORM_SECAM 2 | |
148 | #define VINO_DATA_NORM_D1 3 | |
149 | /* The following is a special entry that can be used to | |
150 | * autodetect the norm. */ | |
151 | #define VINO_DATA_NORM_AUTO 0xff | |
152 | ||
153 | #define VINO_DATA_NORM_COUNT 4 | |
154 | ||
155 | /* Internal data structure definitions */ | |
156 | ||
157 | struct vino_input { | |
158 | char *name; | |
159 | v4l2_std_id std; | |
160 | }; | |
161 | ||
162 | struct vino_clipping { | |
163 | unsigned int left, right, top, bottom; | |
164 | }; | |
165 | ||
166 | struct vino_data_format { | |
167 | /* the description */ | |
168 | char *description; | |
169 | /* bytes per pixel */ | |
170 | unsigned int bpp; | |
171 | /* V4L2 fourcc code */ | |
172 | __u32 pixelformat; | |
173 | /* V4L2 colorspace (duh!) */ | |
174 | enum v4l2_colorspace colorspace; | |
175 | }; | |
176 | ||
177 | struct vino_data_norm { | |
178 | char *description; | |
179 | unsigned int width, height; | |
180 | struct vino_clipping odd; | |
181 | struct vino_clipping even; | |
182 | ||
183 | v4l2_std_id std; | |
184 | unsigned int fps_min, fps_max; | |
185 | __u32 framelines; | |
186 | }; | |
187 | ||
188 | struct vino_descriptor_table { | |
189 | /* the number of PAGE_SIZE sized pages in the buffer */ | |
190 | unsigned int page_count; | |
191 | /* virtual (kmalloc'd) pointers to the actual data | |
192 | * (in PAGE_SIZE chunks, used with mmap streaming) */ | |
193 | unsigned long *virtual; | |
194 | ||
195 | /* cpu address for the VINO descriptor table | |
196 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
197 | unsigned long *dma_cpu; | |
198 | /* dma address for the VINO descriptor table | |
199 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
200 | dma_addr_t dma; | |
201 | }; | |
202 | ||
203 | struct vino_framebuffer { | |
204 | /* identifier nubmer */ | |
205 | unsigned int id; | |
206 | /* the length of the whole buffer */ | |
207 | unsigned int size; | |
208 | /* the length of actual data in buffer */ | |
209 | unsigned int data_size; | |
210 | /* the data format */ | |
211 | unsigned int data_format; | |
212 | /* the state of buffer data */ | |
213 | unsigned int state; | |
214 | /* is the buffer mapped in user space? */ | |
215 | unsigned int map_count; | |
216 | /* memory offset for mmap() */ | |
217 | unsigned int offset; | |
218 | /* frame counter */ | |
219 | unsigned int frame_counter; | |
220 | /* timestamp (written when image capture finishes) */ | |
221 | struct timeval timestamp; | |
222 | ||
223 | struct vino_descriptor_table desc_table; | |
224 | ||
225 | spinlock_t state_lock; | |
226 | }; | |
227 | ||
228 | struct vino_framebuffer_fifo { | |
229 | unsigned int length; | |
230 | ||
231 | unsigned int used; | |
232 | unsigned int head; | |
233 | unsigned int tail; | |
234 | ||
235 | unsigned int data[VINO_FRAMEBUFFER_MAX_COUNT]; | |
236 | }; | |
237 | ||
238 | struct vino_framebuffer_queue { | |
239 | unsigned int magic; | |
240 | ||
241 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ | |
242 | unsigned int type; | |
243 | unsigned int length; | |
244 | ||
245 | /* data field of in and out contain index numbers for buffer */ | |
246 | struct vino_framebuffer_fifo in; | |
247 | struct vino_framebuffer_fifo out; | |
248 | ||
249 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_MAX_COUNT]; | |
1da177e4 | 250 | |
d203a7ec RB |
251 | spinlock_t queue_lock; |
252 | struct semaphore queue_sem; | |
253 | wait_queue_head_t frame_wait_queue; | |
254 | }; | |
255 | ||
256 | struct vino_channel_settings { | |
257 | unsigned int channel; | |
258 | ||
259 | int input; | |
260 | unsigned int data_format; | |
261 | unsigned int data_norm; | |
262 | struct vino_clipping clipping; | |
263 | unsigned int decimation; | |
264 | unsigned int line_size; | |
265 | unsigned int alpha; | |
266 | unsigned int fps; | |
267 | unsigned int framert_reg; | |
268 | ||
269 | unsigned int fifo_threshold; | |
270 | ||
271 | struct vino_framebuffer_queue fb_queue; | |
272 | ||
273 | /* number of the current field */ | |
274 | unsigned int field; | |
275 | ||
276 | /* read in progress */ | |
277 | int reading; | |
278 | /* streaming is active */ | |
279 | int streaming; | |
280 | /* the driver is currently processing the queue */ | |
281 | int capturing; | |
282 | ||
283 | struct semaphore sem; | |
284 | spinlock_t capture_lock; | |
1da177e4 | 285 | |
d203a7ec | 286 | unsigned int users; |
1da177e4 | 287 | |
d203a7ec RB |
288 | /* V4L support */ |
289 | struct video_device *v4l_device; | |
1da177e4 LT |
290 | }; |
291 | ||
292 | struct vino_client { | |
d203a7ec RB |
293 | /* the channel which owns this client: |
294 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ | |
295 | unsigned int owner; | |
1da177e4 | 296 | struct i2c_client *driver; |
1da177e4 LT |
297 | }; |
298 | ||
d203a7ec RB |
299 | struct vino_settings { |
300 | struct vino_channel_settings a; | |
301 | struct vino_channel_settings b; | |
1da177e4 LT |
302 | |
303 | struct vino_client decoder; | |
304 | struct vino_client camera; | |
305 | ||
d203a7ec RB |
306 | /* a lock for vino register access */ |
307 | spinlock_t vino_lock; | |
308 | /* a lock for channel input changes */ | |
309 | spinlock_t input_lock; | |
1da177e4 | 310 | |
1da177e4 | 311 | unsigned long dummy_page; |
d203a7ec RB |
312 | struct vino_descriptor_table dummy_desc_table; |
313 | }; | |
314 | ||
315 | /* Module parameters */ | |
316 | ||
317 | /* | |
318 | * Using vino_pixel_conversion the ARGB32-format pixels supplied | |
319 | * by the VINO chip can be converted to more common formats | |
320 | * like RGBA32 (or probably RGB24 in the future). This way we | |
321 | * can give out data that can be specified correctly with | |
322 | * the V4L2-definitions. | |
323 | * | |
324 | * The pixel format is specified as RGBA32 when no conversion | |
325 | * is used. | |
326 | * | |
327 | * Note that this only affects the 32-bit bit depth. | |
328 | * | |
329 | * Use non-zero value to enable conversion. | |
330 | */ | |
331 | static int vino_pixel_conversion = 0; | |
332 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); | |
333 | MODULE_PARM_DESC(pixelconv, | |
334 | "enable pixel conversion (non-zero value enables)"); | |
335 | ||
336 | /* Internal data structures */ | |
337 | ||
338 | static struct sgi_vino *vino; | |
339 | ||
340 | static struct vino_settings *vino_drvdata; | |
341 | ||
342 | static const char *vino_driver_name = "vino"; | |
343 | static const char *vino_driver_description = "SGI VINO"; | |
344 | static const char *vino_bus_name = "GIO64 bus"; | |
345 | static const char *vino_v4l_device_name_a = "SGI VINO Channel A"; | |
346 | static const char *vino_v4l_device_name_b = "SGI VINO Channel B"; | |
347 | ||
348 | static const struct vino_input vino_inputs[] = { | |
349 | { | |
350 | .name = "Composite", | |
351 | .std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, | |
352 | },{ | |
353 | .name = "S-Video", | |
354 | .std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, | |
355 | },{ | |
356 | .name = "D1 (IndyCam)", | |
357 | .std = V4L2_STD_NTSC, | |
358 | } | |
359 | }; | |
360 | ||
361 | static const struct vino_data_format vino_data_formats[] = { | |
362 | { | |
363 | .description = "8-bit greyscale", | |
364 | .bpp = 1, | |
365 | .pixelformat = V4L2_PIX_FMT_GREY, | |
366 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
367 | },{ | |
368 | .description = "8-bit dithered RGB 3-3-2", | |
369 | .bpp = 1, | |
370 | .pixelformat = V4L2_PIX_FMT_RGB332, | |
371 | .colorspace = V4L2_COLORSPACE_SRGB, | |
372 | },{ | |
373 | .description = "32-bit RGB", | |
374 | .bpp = 4, | |
375 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
376 | .colorspace = V4L2_COLORSPACE_SRGB, | |
377 | },{ | |
378 | .description = "YUV 4:2:2", | |
379 | .bpp = 4, | |
380 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? | |
381 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
382 | }/*,{ | |
383 | .description = "24-bit RGB", | |
384 | .bpp = 3, | |
385 | .pixelformat = V4L2_PIX_FMT_RGB24, | |
386 | .colorspace = V4L2_COLORSPACE_SRGB, | |
387 | }*/ | |
388 | }; | |
389 | ||
390 | static const struct vino_data_norm vino_data_norms[] = { | |
391 | { | |
392 | .description = "NTSC", | |
393 | .std = V4L2_STD_NTSC, | |
394 | .fps_min = 6, | |
395 | .fps_max = 30, | |
396 | .framelines = 525, | |
397 | .width = VINO_NTSC_WIDTH, | |
398 | .height = VINO_NTSC_HEIGHT, | |
399 | .odd = { | |
400 | .top = VINO_CLIPPING_START_ODD_NTSC, | |
401 | .left = 0, | |
402 | .bottom = VINO_CLIPPING_START_ODD_NTSC | |
403 | + VINO_NTSC_HEIGHT / 2 - 1, | |
404 | .right = VINO_NTSC_WIDTH, | |
405 | }, | |
406 | .even = { | |
407 | .top = VINO_CLIPPING_START_EVEN_NTSC, | |
408 | .left = 0, | |
409 | .bottom = VINO_CLIPPING_START_EVEN_NTSC | |
410 | + VINO_NTSC_HEIGHT / 2 - 1, | |
411 | .right = VINO_NTSC_WIDTH, | |
412 | }, | |
413 | },{ | |
414 | .description = "PAL", | |
415 | .std = V4L2_STD_PAL, | |
416 | .fps_min = 5, | |
417 | .fps_max = 25, | |
418 | .framelines = 625, | |
419 | .width = VINO_PAL_WIDTH, | |
420 | .height = VINO_PAL_HEIGHT, | |
421 | .odd = { | |
422 | .top = VINO_CLIPPING_START_ODD_PAL, | |
423 | .left = 0, | |
424 | .bottom = VINO_CLIPPING_START_ODD_PAL | |
425 | + VINO_PAL_HEIGHT / 2 - 1, | |
426 | .right = VINO_PAL_WIDTH, | |
427 | }, | |
428 | .even = { | |
429 | .top = VINO_CLIPPING_START_EVEN_PAL, | |
430 | .left = 0, | |
431 | .bottom = VINO_CLIPPING_START_EVEN_PAL | |
432 | + VINO_PAL_HEIGHT / 2 - 1, | |
433 | .right = VINO_PAL_WIDTH, | |
434 | }, | |
435 | },{ | |
436 | .description = "SECAM", | |
437 | .std = V4L2_STD_SECAM, | |
438 | .fps_min = 5, | |
439 | .fps_max = 25, | |
440 | .framelines = 625, | |
441 | .width = VINO_PAL_WIDTH, | |
442 | .height = VINO_PAL_HEIGHT, | |
443 | .odd = { | |
444 | .top = VINO_CLIPPING_START_ODD_PAL, | |
445 | .left = 0, | |
446 | .bottom = VINO_CLIPPING_START_ODD_PAL | |
447 | + VINO_PAL_HEIGHT / 2 - 1, | |
448 | .right = VINO_PAL_WIDTH, | |
449 | }, | |
450 | .even = { | |
451 | .top = VINO_CLIPPING_START_EVEN_PAL, | |
452 | .left = 0, | |
453 | .bottom = VINO_CLIPPING_START_EVEN_PAL | |
454 | + VINO_PAL_HEIGHT / 2 - 1, | |
455 | .right = VINO_PAL_WIDTH, | |
456 | }, | |
457 | },{ | |
458 | .description = "NTSC (D1 input)", | |
459 | .std = V4L2_STD_NTSC, | |
460 | .fps_min = 6, | |
461 | .fps_max = 30, | |
462 | .framelines = 525, | |
463 | .width = VINO_NTSC_WIDTH, | |
464 | .height = VINO_NTSC_HEIGHT, | |
465 | .odd = { | |
466 | .top = VINO_CLIPPING_START_ODD_D1, | |
467 | .left = 0, | |
468 | .bottom = VINO_CLIPPING_START_ODD_D1 | |
469 | + VINO_NTSC_HEIGHT / 2 - 1, | |
470 | .right = VINO_NTSC_WIDTH, | |
471 | }, | |
472 | .even = { | |
473 | .top = VINO_CLIPPING_START_EVEN_D1, | |
474 | .left = 0, | |
475 | .bottom = VINO_CLIPPING_START_EVEN_D1 | |
476 | + VINO_NTSC_HEIGHT / 2 - 1, | |
477 | .right = VINO_NTSC_WIDTH, | |
478 | }, | |
479 | } | |
480 | }; | |
481 | ||
482 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 | |
483 | ||
484 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { | |
485 | { | |
486 | .id = V4L2_CID_AUTOGAIN, | |
487 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
488 | .name = "Automatic Gain Control", | |
489 | .minimum = 0, | |
490 | .maximum = 1, | |
491 | .step = 1, | |
492 | .default_value = INDYCAM_AGC_DEFAULT, | |
493 | .flags = 0, | |
494 | .reserved = { 0, 0 }, | |
495 | },{ | |
496 | .id = V4L2_CID_AUTO_WHITE_BALANCE, | |
497 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
498 | .name = "Automatic White Balance", | |
499 | .minimum = 0, | |
500 | .maximum = 1, | |
501 | .step = 1, | |
502 | .default_value = INDYCAM_AWB_DEFAULT, | |
503 | .flags = 0, | |
504 | .reserved = { 0, 0 }, | |
505 | },{ | |
506 | .id = V4L2_CID_GAIN, | |
507 | .type = V4L2_CTRL_TYPE_INTEGER, | |
508 | .name = "Gain", | |
509 | .minimum = INDYCAM_GAIN_MIN, | |
510 | .maximum = INDYCAM_GAIN_MAX, | |
511 | .step = 1, | |
512 | .default_value = INDYCAM_GAIN_DEFAULT, | |
513 | .flags = 0, | |
514 | .reserved = { 0, 0 }, | |
515 | },{ | |
516 | .id = V4L2_CID_PRIVATE_BASE, | |
517 | .type = V4L2_CTRL_TYPE_INTEGER, | |
518 | .name = "Red Saturation", | |
519 | .minimum = INDYCAM_RED_SATURATION_MIN, | |
520 | .maximum = INDYCAM_RED_SATURATION_MAX, | |
521 | .step = 1, | |
522 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, | |
523 | .flags = 0, | |
524 | .reserved = { 0, 0 }, | |
525 | },{ | |
526 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
527 | .type = V4L2_CTRL_TYPE_INTEGER, | |
528 | .name = "Blue Saturation", | |
529 | .minimum = INDYCAM_BLUE_SATURATION_MIN, | |
530 | .maximum = INDYCAM_BLUE_SATURATION_MAX, | |
531 | .step = 1, | |
532 | .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, | |
533 | .flags = 0, | |
534 | .reserved = { 0, 0 }, | |
535 | },{ | |
536 | .id = V4L2_CID_RED_BALANCE, | |
537 | .type = V4L2_CTRL_TYPE_INTEGER, | |
538 | .name = "Red Balance", | |
539 | .minimum = INDYCAM_RED_BALANCE_MIN, | |
540 | .maximum = INDYCAM_RED_BALANCE_MAX, | |
541 | .step = 1, | |
542 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, | |
543 | .flags = 0, | |
544 | .reserved = { 0, 0 }, | |
545 | },{ | |
546 | .id = V4L2_CID_BLUE_BALANCE, | |
547 | .type = V4L2_CTRL_TYPE_INTEGER, | |
548 | .name = "Blue Balance", | |
549 | .minimum = INDYCAM_BLUE_BALANCE_MIN, | |
550 | .maximum = INDYCAM_BLUE_BALANCE_MAX, | |
551 | .step = 1, | |
552 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, | |
553 | .flags = 0, | |
554 | .reserved = { 0, 0 }, | |
555 | },{ | |
556 | .id = V4L2_CID_EXPOSURE, | |
557 | .type = V4L2_CTRL_TYPE_INTEGER, | |
558 | .name = "Shutter Control", | |
559 | .minimum = INDYCAM_SHUTTER_MIN, | |
560 | .maximum = INDYCAM_SHUTTER_MAX, | |
561 | .step = 1, | |
562 | .default_value = INDYCAM_SHUTTER_DEFAULT, | |
563 | .flags = 0, | |
564 | .reserved = { 0, 0 }, | |
565 | },{ | |
566 | .id = V4L2_CID_GAMMA, | |
567 | .type = V4L2_CTRL_TYPE_INTEGER, | |
568 | .name = "Gamma", | |
569 | .minimum = INDYCAM_GAMMA_MIN, | |
570 | .maximum = INDYCAM_GAMMA_MAX, | |
571 | .step = 1, | |
572 | .default_value = INDYCAM_GAMMA_DEFAULT, | |
573 | .flags = 0, | |
574 | .reserved = { 0, 0 }, | |
575 | } | |
576 | }; | |
577 | ||
578 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 2 | |
579 | ||
580 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { | |
581 | { | |
582 | .id = V4L2_CID_HUE, | |
583 | .type = V4L2_CTRL_TYPE_INTEGER, | |
584 | .name = "Hue", | |
585 | .minimum = SAA7191_HUE_MIN, | |
586 | .maximum = SAA7191_HUE_MAX, | |
587 | .step = 1, | |
588 | .default_value = SAA7191_HUE_DEFAULT, | |
589 | .flags = 0, | |
590 | .reserved = { 0, 0 }, | |
591 | },{ | |
592 | .id = V4L2_CID_PRIVATE_BASE, | |
593 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
594 | .name = "VTR Time Constant", | |
595 | .minimum = SAA7191_VTRC_MIN, | |
596 | .maximum = SAA7191_VTRC_MAX, | |
597 | .step = 1, | |
598 | .default_value = SAA7191_VTRC_DEFAULT, | |
599 | .flags = 0, | |
600 | .reserved = { 0, 0 }, | |
601 | } | |
1da177e4 LT |
602 | }; |
603 | ||
d203a7ec | 604 | /* VINO I2C bus functions */ |
1da177e4 LT |
605 | |
606 | unsigned i2c_vino_getctrl(void *data) | |
607 | { | |
608 | return vino->i2c_control; | |
609 | } | |
610 | ||
611 | void i2c_vino_setctrl(void *data, unsigned val) | |
612 | { | |
613 | vino->i2c_control = val; | |
614 | } | |
615 | ||
616 | unsigned i2c_vino_rdata(void *data) | |
617 | { | |
618 | return vino->i2c_data; | |
619 | } | |
620 | ||
621 | void i2c_vino_wdata(void *data, unsigned val) | |
622 | { | |
623 | vino->i2c_data = val; | |
624 | } | |
625 | ||
626 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = | |
627 | { | |
628 | .getctrl = &i2c_vino_getctrl, | |
629 | .setctrl = &i2c_vino_setctrl, | |
630 | .rdata = &i2c_vino_rdata, | |
631 | .wdata = &i2c_vino_wdata, | |
632 | .xfer_timeout = 200, | |
633 | .ack_timeout = 1000, | |
634 | }; | |
635 | ||
636 | /* | |
637 | * There are two possible clients on VINO I2C bus, so we limit usage only | |
638 | * to them. | |
639 | */ | |
640 | static int i2c_vino_client_reg(struct i2c_client *client) | |
641 | { | |
d203a7ec | 642 | int ret = 0; |
1da177e4 | 643 | |
d203a7ec | 644 | spin_lock(&vino_drvdata->input_lock); |
1da177e4 LT |
645 | switch (client->driver->id) { |
646 | case I2C_DRIVERID_SAA7191: | |
d203a7ec RB |
647 | if (vino_drvdata->decoder.driver) |
648 | ret = -EBUSY; | |
1da177e4 | 649 | else |
d203a7ec | 650 | vino_drvdata->decoder.driver = client; |
1da177e4 LT |
651 | break; |
652 | case I2C_DRIVERID_INDYCAM: | |
d203a7ec RB |
653 | if (vino_drvdata->camera.driver) |
654 | ret = -EBUSY; | |
1da177e4 | 655 | else |
d203a7ec | 656 | vino_drvdata->camera.driver = client; |
1da177e4 LT |
657 | break; |
658 | default: | |
d203a7ec | 659 | ret = -ENODEV; |
1da177e4 | 660 | } |
d203a7ec | 661 | spin_unlock(&vino_drvdata->input_lock); |
1da177e4 | 662 | |
d203a7ec | 663 | return ret; |
1da177e4 LT |
664 | } |
665 | ||
666 | static int i2c_vino_client_unreg(struct i2c_client *client) | |
667 | { | |
d203a7ec | 668 | int ret = 0; |
1da177e4 | 669 | |
d203a7ec RB |
670 | spin_lock(&vino_drvdata->input_lock); |
671 | if (client == vino_drvdata->decoder.driver) { | |
672 | if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL) | |
673 | ret = -EBUSY; | |
1da177e4 | 674 | else |
d203a7ec RB |
675 | vino_drvdata->decoder.driver = NULL; |
676 | } else if (client == vino_drvdata->camera.driver) { | |
677 | if (vino_drvdata->camera.owner != VINO_NO_CHANNEL) | |
678 | ret = -EBUSY; | |
1da177e4 | 679 | else |
d203a7ec | 680 | vino_drvdata->camera.driver = NULL; |
1da177e4 | 681 | } |
d203a7ec | 682 | spin_unlock(&vino_drvdata->input_lock); |
1da177e4 | 683 | |
d203a7ec | 684 | return ret; |
1da177e4 LT |
685 | } |
686 | ||
687 | static struct i2c_adapter vino_i2c_adapter = | |
688 | { | |
689 | .name = "VINO I2C bus", | |
690 | .id = I2C_HW_SGI_VINO, | |
691 | .algo_data = &i2c_sgi_vino_data, | |
692 | .client_register = &i2c_vino_client_reg, | |
693 | .client_unregister = &i2c_vino_client_unreg, | |
694 | }; | |
695 | ||
696 | static int vino_i2c_add_bus(void) | |
697 | { | |
698 | return i2c_sgi_add_bus(&vino_i2c_adapter); | |
699 | } | |
700 | ||
701 | static int vino_i2c_del_bus(void) | |
702 | { | |
703 | return i2c_sgi_del_bus(&vino_i2c_adapter); | |
704 | } | |
705 | ||
d203a7ec RB |
706 | static int i2c_camera_command(unsigned int cmd, void *arg) |
707 | { | |
708 | return vino_drvdata->camera.driver-> | |
709 | driver->command(vino_drvdata->camera.driver, | |
710 | cmd, arg); | |
711 | } | |
1da177e4 | 712 | |
d203a7ec | 713 | static int i2c_decoder_command(unsigned int cmd, void *arg) |
1da177e4 | 714 | { |
d203a7ec RB |
715 | return vino_drvdata->decoder.driver-> |
716 | driver->command(vino_drvdata->decoder.driver, | |
717 | cmd, arg); | |
1da177e4 LT |
718 | } |
719 | ||
d203a7ec RB |
720 | /* VINO framebuffer/DMA descriptor management */ |
721 | ||
722 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, | |
723 | unsigned int count) | |
1da177e4 | 724 | { |
d203a7ec | 725 | unsigned int i; |
1da177e4 | 726 | |
d203a7ec RB |
727 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
728 | ||
729 | for (i = 0; i < count; i++) { | |
730 | mem_map_unreserve(virt_to_page(fb->desc_table.virtual[i])); | |
731 | dma_unmap_single(NULL, | |
732 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
733 | PAGE_SIZE, DMA_FROM_DEVICE); | |
734 | free_page(fb->desc_table.virtual[i]); | |
735 | } | |
736 | ||
737 | dma_free_coherent(NULL, | |
738 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * | |
739 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, | |
740 | fb->desc_table.dma); | |
741 | kfree(fb->desc_table.virtual); | |
742 | ||
743 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
744 | } | |
745 | ||
746 | static void vino_free_buffer(struct vino_framebuffer *fb) | |
747 | { | |
748 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); | |
1da177e4 LT |
749 | } |
750 | ||
d203a7ec RB |
751 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
752 | unsigned int size) | |
1da177e4 | 753 | { |
d203a7ec RB |
754 | unsigned int count, i, j; |
755 | int ret = 0; | |
756 | ||
757 | dprintk("vino_allocate_buffer():\n"); | |
758 | ||
759 | if (size < 1) | |
760 | return -EINVAL; | |
761 | ||
762 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
763 | ||
764 | count = ((size / PAGE_SIZE) + 4) & ~3; | |
765 | ||
766 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", | |
767 | size, count); | |
768 | ||
769 | /* allocate memory for table with virtual (page) addresses */ | |
770 | fb->desc_table.virtual = (unsigned long *) | |
771 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
772 | if (!fb->desc_table.virtual) | |
773 | return -ENOMEM; | |
774 | ||
775 | /* allocate memory for table with dma addresses | |
776 | * (has space for four extra descriptors) */ | |
777 | fb->desc_table.dma_cpu = | |
778 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
779 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
780 | GFP_KERNEL | GFP_DMA); | |
781 | if (!fb->desc_table.dma_cpu) { | |
782 | ret = -ENOMEM; | |
783 | goto out_free_virtual; | |
784 | } | |
785 | ||
786 | /* allocate pages for the buffer and acquire the according | |
787 | * dma addresses */ | |
788 | for (i = 0; i < count; i++) { | |
789 | dma_addr_t dma_data_addr; | |
790 | ||
791 | fb->desc_table.virtual[i] = | |
792 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
793 | if (!fb->desc_table.virtual[i]) { | |
794 | ret = -ENOBUFS; | |
795 | break; | |
796 | } | |
797 | ||
798 | dma_data_addr = | |
799 | dma_map_single(NULL, | |
800 | (void *)fb->desc_table.virtual[i], | |
801 | PAGE_SIZE, DMA_FROM_DEVICE); | |
802 | ||
803 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
804 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
805 | dma_data_addr + VINO_PAGE_SIZE * j; | |
806 | } | |
807 | ||
808 | mem_map_reserve(virt_to_page(fb->desc_table.virtual[i])); | |
809 | } | |
810 | ||
811 | /* page_count needs to be set anyway, because the descriptor table has | |
812 | * been allocated according to this number */ | |
813 | fb->desc_table.page_count = count; | |
814 | ||
815 | if (ret) { | |
816 | /* the descriptor with index i doesn't contain | |
817 | * a valid address yet */ | |
818 | vino_free_buffer_with_count(fb, i); | |
819 | return ret; | |
820 | } | |
821 | ||
822 | //fb->size = size; | |
823 | fb->size = count * PAGE_SIZE; | |
824 | fb->data_format = VINO_DATA_FMT_NONE; | |
825 | ||
826 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
827 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
828 | return 0; | |
829 | ||
830 | out_free_virtual: | |
831 | kfree(fb->desc_table.virtual); | |
832 | return ret; | |
1da177e4 LT |
833 | } |
834 | ||
d203a7ec RB |
835 | #if 0 |
836 | /* user buffers not fully implemented yet */ | |
837 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, | |
838 | void *user, | |
839 | unsigned int size) | |
1da177e4 | 840 | { |
d203a7ec RB |
841 | unsigned int count, i, j; |
842 | int ret = 0; | |
843 | ||
844 | dprintk("vino_prepare_user_buffer():\n"); | |
845 | ||
846 | if (size < 1) | |
847 | return -EINVAL; | |
848 | ||
849 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
850 | ||
851 | count = ((size / PAGE_SIZE)) & ~3; | |
852 | ||
853 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", | |
854 | size, count); | |
855 | ||
856 | /* allocate memory for table with virtual (page) addresses */ | |
857 | fb->desc_table.virtual = (unsigned long *) | |
858 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
859 | if (!fb->desc_table.virtual) | |
860 | return -ENOMEM; | |
861 | ||
862 | /* allocate memory for table with dma addresses | |
863 | * (has space for four extra descriptors) */ | |
864 | fb->desc_table.dma_cpu = | |
865 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
866 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
867 | GFP_KERNEL | GFP_DMA); | |
868 | if (!fb->desc_table.dma_cpu) { | |
869 | ret = -ENOMEM; | |
870 | goto out_free_virtual; | |
871 | } | |
872 | ||
873 | /* allocate pages for the buffer and acquire the according | |
874 | * dma addresses */ | |
875 | for (i = 0; i < count; i++) { | |
876 | dma_addr_t dma_data_addr; | |
877 | ||
878 | fb->desc_table.virtual[i] = | |
879 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
880 | if (!fb->desc_table.virtual[i]) { | |
881 | ret = -ENOBUFS; | |
882 | break; | |
883 | } | |
884 | ||
885 | dma_data_addr = | |
886 | dma_map_single(NULL, | |
887 | (void *)fb->desc_table.virtual[i], | |
888 | PAGE_SIZE, DMA_FROM_DEVICE); | |
889 | ||
890 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
891 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
892 | dma_data_addr + VINO_PAGE_SIZE * j; | |
893 | } | |
894 | ||
895 | mem_map_reserve(virt_to_page(fb->desc_table.virtual[i])); | |
896 | } | |
1da177e4 | 897 | |
d203a7ec RB |
898 | /* page_count needs to be set anyway, because the descriptor table has |
899 | * been allocated according to this number */ | |
900 | fb->desc_table.page_count = count; | |
901 | ||
902 | if (ret) { | |
903 | /* the descriptor with index i doesn't contain | |
904 | * a valid address yet */ | |
905 | vino_free_buffer_with_count(fb, i); | |
906 | return ret; | |
907 | } | |
908 | ||
909 | //fb->size = size; | |
910 | fb->size = count * PAGE_SIZE; | |
911 | ||
912 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
913 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
914 | return 0; | |
915 | ||
916 | out_free_virtual: | |
917 | kfree(fb->desc_table.virtual); | |
918 | return ret; | |
1da177e4 | 919 | } |
d203a7ec | 920 | #endif |
1da177e4 | 921 | |
d203a7ec | 922 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
1da177e4 | 923 | { |
d203a7ec RB |
924 | int i; |
925 | ||
926 | dprintk("vino_sync_buffer():\n"); | |
1da177e4 | 927 | |
d203a7ec RB |
928 | for (i = 0; i < fb->desc_table.page_count; i++) |
929 | dma_sync_single(NULL, | |
930 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
931 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1da177e4 LT |
932 | } |
933 | ||
d203a7ec | 934 | /* Framebuffer fifo functions (need to be locked externally) */ |
1da177e4 | 935 | |
d203a7ec RB |
936 | static void vino_fifo_init(struct vino_framebuffer_fifo *f, |
937 | unsigned int length) | |
1da177e4 | 938 | { |
d203a7ec RB |
939 | f->length = 0; |
940 | f->used = 0; | |
941 | f->head = 0; | |
942 | f->tail = 0; | |
1da177e4 | 943 | |
d203a7ec RB |
944 | if (length > VINO_FRAMEBUFFER_MAX_COUNT) |
945 | length = VINO_FRAMEBUFFER_MAX_COUNT; | |
1da177e4 | 946 | |
d203a7ec RB |
947 | f->length = length; |
948 | } | |
949 | ||
950 | /* returns true/false */ | |
951 | static int vino_fifo_has_id(struct vino_framebuffer_fifo *f, unsigned int id) | |
952 | { | |
953 | unsigned int i; | |
954 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { | |
955 | if (f->data[i] == id) | |
956 | return 1; | |
1da177e4 LT |
957 | } |
958 | ||
d203a7ec RB |
959 | return 0; |
960 | } | |
1da177e4 | 961 | |
d203a7ec RB |
962 | /* returns true/false */ |
963 | static int vino_fifo_full(struct vino_framebuffer_fifo *f) | |
964 | { | |
965 | return (f->used == f->length); | |
966 | } | |
967 | ||
968 | static unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) | |
969 | { | |
970 | return f->used; | |
971 | } | |
972 | ||
973 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) | |
974 | { | |
975 | if (id >= f->length) { | |
976 | return VINO_QUEUE_ERROR; | |
1da177e4 | 977 | } |
d203a7ec RB |
978 | |
979 | if (vino_fifo_has_id(f, id)) { | |
980 | return VINO_QUEUE_ERROR; | |
1da177e4 | 981 | } |
1da177e4 | 982 | |
d203a7ec RB |
983 | if (f->used < f->length) { |
984 | f->data[f->tail] = id; | |
985 | f->tail = (f->tail + 1) % f->length; | |
986 | f->used++; | |
987 | } else { | |
988 | return VINO_QUEUE_ERROR; | |
1da177e4 LT |
989 | } |
990 | ||
d203a7ec RB |
991 | return 0; |
992 | } | |
993 | ||
994 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) | |
995 | { | |
996 | if (f->used > 0) { | |
997 | *id = f->data[f->head]; | |
998 | } else { | |
999 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1000 | } |
1da177e4 | 1001 | |
d203a7ec RB |
1002 | return 0; |
1003 | } | |
1004 | ||
1005 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1006 | { | |
1007 | if (f->used > 0) { | |
1008 | *id = f->data[f->head]; | |
1009 | f->head = (f->head + 1) % f->length; | |
1010 | f->used--; | |
1011 | } else { | |
1012 | return VINO_QUEUE_ERROR; | |
1013 | } | |
1014 | ||
1015 | return 0; | |
1016 | } | |
1da177e4 | 1017 | |
d203a7ec | 1018 | /* Framebuffer queue functions */ |
1da177e4 | 1019 | |
d203a7ec RB |
1020 | /* execute with queue_lock locked */ |
1021 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, | |
1022 | unsigned int length) | |
1023 | { | |
1024 | unsigned int i; | |
1025 | ||
1026 | q->length = 0; | |
1027 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); | |
1028 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); | |
1029 | for (i = 0; i < length; i++) { | |
1030 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", | |
1031 | i); | |
1032 | vino_free_buffer(q->buffer[i]); | |
1033 | kfree(q->buffer[i]); | |
1da177e4 LT |
1034 | } |
1035 | ||
d203a7ec RB |
1036 | q->type = VINO_MEMORY_NONE; |
1037 | q->magic = 0; | |
1038 | } | |
1039 | ||
1040 | static void vino_queue_free(struct vino_framebuffer_queue *q) | |
1041 | { | |
1042 | dprintk("vino_queue_free():\n"); | |
1043 | ||
1044 | if (q->magic != VINO_QUEUE_MAGIC) | |
1045 | return; | |
1046 | if (q->type != VINO_MEMORY_MMAP) | |
1047 | return; | |
1048 | ||
1049 | down(&q->queue_sem); | |
1050 | ||
1051 | vino_queue_free_with_count(q, q->length); | |
1052 | ||
1053 | up(&q->queue_sem); | |
1054 | } | |
1055 | ||
1056 | static int vino_queue_init(struct vino_framebuffer_queue *q, | |
1057 | unsigned int *length) | |
1058 | { | |
1059 | unsigned int i; | |
1060 | int ret = 0; | |
1061 | ||
1062 | dprintk("vino_queue_init(): length = %d\n", *length); | |
1063 | ||
1064 | if (q->magic == VINO_QUEUE_MAGIC) { | |
1065 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1066 | return -EINVAL; | |
1da177e4 LT |
1067 | } |
1068 | ||
d203a7ec RB |
1069 | if (q->type != VINO_MEMORY_NONE) { |
1070 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1071 | return -EINVAL; | |
1da177e4 | 1072 | } |
d203a7ec RB |
1073 | |
1074 | if (*length < 1) | |
1075 | return -EINVAL; | |
1076 | ||
1077 | down(&q->queue_sem); | |
1078 | ||
1079 | if (*length > VINO_FRAMEBUFFER_MAX_COUNT) | |
1080 | *length = VINO_FRAMEBUFFER_MAX_COUNT; | |
1081 | ||
1082 | q->length = 0; | |
1083 | ||
1084 | for (i = 0; i < *length; i++) { | |
1085 | dprintk("vino_queue_init(): allocating buffer %d\n", i); | |
1086 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), | |
1087 | GFP_KERNEL); | |
1088 | if (!q->buffer[i]) { | |
1089 | dprintk("vino_queue_init(): kmalloc() failed\n"); | |
1090 | ret = -ENOMEM; | |
1091 | break; | |
1092 | } | |
1093 | ||
1094 | ret = vino_allocate_buffer(q->buffer[i], | |
1095 | VINO_FRAMEBUFFER_SIZE); | |
1096 | if (ret) { | |
1097 | kfree(q->buffer[i]); | |
1098 | dprintk("vino_queue_init(): " | |
1099 | "vino_allocate_buffer() failed\n"); | |
1100 | break; | |
1101 | } | |
1102 | ||
1103 | q->buffer[i]->id = i; | |
1104 | if (i > 0) { | |
1105 | q->buffer[i]->offset = q->buffer[i - 1]->offset + | |
1106 | q->buffer[i - 1]->size; | |
1107 | } else { | |
1108 | q->buffer[i]->offset = 0; | |
1109 | } | |
1110 | ||
1111 | spin_lock_init(&q->buffer[i]->state_lock); | |
1112 | ||
1113 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " | |
1114 | "size = %d\n", i, q->buffer[i]->offset, | |
1115 | q->buffer[i]->size); | |
1da177e4 LT |
1116 | } |
1117 | ||
d203a7ec RB |
1118 | if (ret) { |
1119 | vino_queue_free_with_count(q, i); | |
1120 | *length = 0; | |
1121 | } else { | |
1122 | q->length = *length; | |
1123 | vino_fifo_init(&q->in, q->length); | |
1124 | vino_fifo_init(&q->out, q->length); | |
1125 | q->type = VINO_MEMORY_MMAP; | |
1126 | q->magic = VINO_QUEUE_MAGIC; | |
1127 | } | |
1da177e4 | 1128 | |
d203a7ec | 1129 | up(&q->queue_sem); |
1da177e4 LT |
1130 | |
1131 | return ret; | |
1132 | } | |
1133 | ||
d203a7ec RB |
1134 | static struct vino_framebuffer *vino_queue_add(struct |
1135 | vino_framebuffer_queue *q, | |
1136 | unsigned int id) | |
1da177e4 | 1137 | { |
d203a7ec RB |
1138 | struct vino_framebuffer *ret = NULL; |
1139 | unsigned int total; | |
1140 | unsigned long flags; | |
1141 | ||
1142 | dprintk("vino_queue_add(): id = %d\n", id); | |
1143 | ||
1144 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1145 | return ret; | |
1146 | } | |
1147 | ||
1148 | spin_lock_irqsave(&q->queue_lock, flags); | |
1149 | ||
1150 | if (q->length == 0) | |
1151 | goto out; | |
1152 | ||
1153 | if (id >= q->length) | |
1154 | goto out; | |
1155 | ||
1156 | /* not needed?: if (vino_fifo_full(&q->out)) { | |
1157 | goto out; | |
1158 | }*/ | |
1159 | /* check that outgoing queue isn't already full | |
1160 | * (or that it won't become full) */ | |
1161 | total = vino_fifo_get_used(&q->in) + | |
1162 | vino_fifo_get_used(&q->out); | |
1163 | if (total >= q->length) | |
1164 | goto out; | |
1165 | ||
1166 | if (vino_fifo_enqueue(&q->in, id)) | |
1167 | goto out; | |
1168 | ||
1169 | ret = q->buffer[id]; | |
1170 | ||
1171 | out: | |
1172 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1173 | ||
1174 | return ret; | |
1da177e4 LT |
1175 | } |
1176 | ||
d203a7ec RB |
1177 | static struct vino_framebuffer *vino_queue_transfer(struct |
1178 | vino_framebuffer_queue *q) | |
1179 | { | |
1180 | struct vino_framebuffer *ret = NULL; | |
1181 | struct vino_framebuffer *fb; | |
1182 | int id; | |
1183 | unsigned long flags; | |
1da177e4 | 1184 | |
d203a7ec RB |
1185 | dprintk("vino_queue_transfer():\n"); |
1186 | ||
1187 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1188 | return ret; | |
1189 | } | |
1190 | ||
1191 | spin_lock_irqsave(&q->queue_lock, flags); | |
1192 | ||
1193 | if (q->length == 0) | |
1194 | goto out; | |
1195 | ||
1196 | // now this actually removes an entry from the incoming queue | |
1197 | if (vino_fifo_dequeue(&q->in, &id)) { | |
1198 | goto out; | |
1199 | } | |
1200 | ||
1201 | dprintk("vino_queue_transfer(): id = %d\n", id); | |
1202 | fb = q->buffer[id]; | |
1203 | ||
1204 | // we have already checked that the outgoing queue is not full, but... | |
1205 | if (vino_fifo_enqueue(&q->out, id)) { | |
1206 | printk(KERN_ERR "vino_queue_transfer(): " | |
1207 | "outgoing queue is full, this shouldn't happen!\n"); | |
1208 | goto out; | |
1209 | } | |
1210 | ||
1211 | ret = fb; | |
1212 | out: | |
1213 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1214 | ||
1215 | return ret; | |
1216 | } | |
1217 | ||
1218 | /* returns true/false */ | |
1219 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, | |
1220 | unsigned int id) | |
1221 | { | |
1222 | int ret = 0; | |
1223 | unsigned long flags; | |
1224 | ||
1225 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1226 | return ret; | |
1227 | } | |
1228 | ||
1229 | spin_lock_irqsave(&q->queue_lock, flags); | |
1230 | ||
1231 | if (q->length == 0) | |
1232 | goto out; | |
1233 | ||
1234 | ret = vino_fifo_has_id(&q->in, id); | |
1235 | ||
1236 | out: | |
1237 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1238 | ||
1239 | return ret; | |
1240 | } | |
1241 | ||
1242 | /* returns true/false */ | |
1243 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, | |
1244 | unsigned int id) | |
1245 | { | |
1246 | int ret = 0; | |
1247 | unsigned long flags; | |
1248 | ||
1249 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1250 | return ret; | |
1251 | } | |
1252 | ||
1253 | spin_lock_irqsave(&q->queue_lock, flags); | |
1254 | ||
1255 | if (q->length == 0) | |
1256 | goto out; | |
1257 | ||
1258 | ret = vino_fifo_has_id(&q->out, id); | |
1259 | ||
1260 | out: | |
1261 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1262 | ||
1263 | return ret; | |
1264 | } | |
1265 | ||
1266 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, | |
1267 | unsigned int *used) | |
1268 | { | |
1269 | int ret = 0; | |
1270 | unsigned long flags; | |
1271 | ||
1272 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1273 | return VINO_QUEUE_ERROR; | |
1274 | } | |
1275 | ||
1276 | spin_lock_irqsave(&q->queue_lock, flags); | |
1277 | ||
1278 | if (q->length == 0) { | |
1279 | ret = VINO_QUEUE_ERROR; | |
1280 | goto out; | |
1281 | } | |
1282 | ||
1283 | *used = vino_fifo_get_used(&q->in); | |
1284 | ||
1285 | out: | |
1286 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1287 | ||
1288 | return ret; | |
1289 | } | |
1290 | ||
1291 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, | |
1292 | unsigned int *used) | |
1293 | { | |
1294 | int ret = 0; | |
1295 | unsigned long flags; | |
1296 | ||
1297 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1298 | return VINO_QUEUE_ERROR; | |
1299 | } | |
1300 | ||
1301 | spin_lock_irqsave(&q->queue_lock, flags); | |
1302 | ||
1303 | if (q->length == 0) { | |
1304 | ret = VINO_QUEUE_ERROR; | |
1305 | goto out; | |
1306 | } | |
1307 | ||
1308 | *used = vino_fifo_get_used(&q->out); | |
1309 | ||
1310 | out: | |
1311 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1312 | ||
1313 | return ret; | |
1314 | } | |
1315 | ||
1316 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, | |
1317 | unsigned int *total) | |
1318 | { | |
1319 | int ret = 0; | |
1320 | unsigned long flags; | |
1321 | ||
1322 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1323 | return VINO_QUEUE_ERROR; | |
1324 | } | |
1325 | ||
1326 | spin_lock_irqsave(&q->queue_lock, flags); | |
1327 | ||
1328 | if (q->length == 0) { | |
1329 | ret = VINO_QUEUE_ERROR; | |
1330 | goto out; | |
1331 | } | |
1332 | ||
1333 | *total = vino_fifo_get_used(&q->in) + | |
1334 | vino_fifo_get_used(&q->out); | |
1335 | ||
1336 | out: | |
1337 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1338 | ||
1339 | return ret; | |
1340 | } | |
1341 | ||
1342 | static struct vino_framebuffer *vino_queue_peek(struct | |
1343 | vino_framebuffer_queue *q, | |
1344 | unsigned int *id) | |
1345 | { | |
1346 | struct vino_framebuffer *ret = NULL; | |
1347 | unsigned long flags; | |
1348 | ||
1349 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1350 | return ret; | |
1351 | } | |
1352 | ||
1353 | spin_lock_irqsave(&q->queue_lock, flags); | |
1354 | ||
1355 | if (q->length == 0) | |
1356 | goto out; | |
1357 | ||
1358 | if (vino_fifo_peek(&q->in, id)) { | |
1359 | goto out; | |
1360 | } | |
1361 | ||
1362 | ret = q->buffer[*id]; | |
1363 | out: | |
1364 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1365 | ||
1366 | return ret; | |
1367 | } | |
1368 | ||
1369 | static struct vino_framebuffer *vino_queue_remove(struct | |
1370 | vino_framebuffer_queue *q, | |
1371 | unsigned int *id) | |
1372 | { | |
1373 | struct vino_framebuffer *ret = NULL; | |
1374 | unsigned long flags; | |
1375 | dprintk("vino_queue_remove():\n"); | |
1376 | ||
1377 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1378 | return ret; | |
1379 | } | |
1380 | ||
1381 | spin_lock_irqsave(&q->queue_lock, flags); | |
1382 | ||
1383 | if (q->length == 0) | |
1384 | goto out; | |
1385 | ||
1386 | if (vino_fifo_dequeue(&q->out, id)) { | |
1387 | goto out; | |
1388 | } | |
1389 | ||
1390 | dprintk("vino_queue_remove(): id = %d\n", *id); | |
1391 | ret = q->buffer[*id]; | |
1392 | out: | |
1393 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1394 | ||
1395 | return ret; | |
1396 | } | |
1397 | ||
1398 | static struct | |
1399 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, | |
1400 | unsigned int id) | |
1401 | { | |
1402 | struct vino_framebuffer *ret = NULL; | |
1403 | unsigned long flags; | |
1404 | ||
1405 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1406 | return ret; | |
1407 | } | |
1408 | ||
1409 | spin_lock_irqsave(&q->queue_lock, flags); | |
1410 | ||
1411 | if (q->length == 0) | |
1412 | goto out; | |
1413 | ||
1414 | if (id >= q->length) | |
1415 | goto out; | |
1416 | ||
1417 | ret = q->buffer[id]; | |
1418 | out: | |
1419 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1420 | ||
1421 | return ret; | |
1422 | } | |
1423 | ||
1424 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) | |
1425 | { | |
1426 | unsigned int length = 0; | |
1427 | unsigned long flags; | |
1428 | ||
1429 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1430 | return length; | |
1431 | } | |
1432 | ||
1433 | spin_lock_irqsave(&q->queue_lock, flags); | |
1434 | length = q->length; | |
1435 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1436 | ||
1437 | return length; | |
1438 | } | |
1439 | ||
1440 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) | |
1441 | { | |
1442 | unsigned int i; | |
1443 | int ret = 0; | |
1444 | unsigned long flags; | |
1445 | ||
1446 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1447 | return ret; | |
1448 | } | |
1449 | ||
1450 | spin_lock_irqsave(&q->queue_lock, flags); | |
1451 | for (i = 0; i < q->length; i++) { | |
1452 | if (q->buffer[i]->map_count > 0) { | |
1453 | ret = 1; | |
1454 | break; | |
1455 | } | |
1456 | } | |
1457 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1458 | ||
1459 | return ret; | |
1460 | } | |
1461 | ||
1462 | /* VINO functions */ | |
1463 | ||
1464 | /* execute with input_lock locked */ | |
1465 | static void vino_update_line_size(struct vino_channel_settings *vcs) | |
1466 | { | |
1467 | unsigned int w = vcs->clipping.right - vcs->clipping.left; | |
1468 | unsigned int d = vcs->decimation; | |
1469 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; | |
1470 | unsigned int lsize; | |
1471 | ||
1472 | dprintk("update_line_size(): before: w = %d, d = %d, " | |
1473 | "line_size = %d\n", w, d, vcs->line_size); | |
1474 | /* line size must be multiple of 8 bytes */ | |
1475 | lsize = (bpp * (w / d)) & ~7; | |
1476 | w = (lsize / bpp) * d; | |
1477 | ||
1478 | vcs->clipping.right = vcs->clipping.left + w; | |
1479 | vcs->line_size = lsize; | |
1480 | dprintk("update_line_size(): after: w = %d, d = %d, " | |
1481 | "line_size = %d\n", w, d, vcs->line_size); | |
1482 | } | |
1483 | ||
1484 | /* execute with input_lock locked */ | |
1485 | static void vino_set_clipping(struct vino_channel_settings *vcs, | |
1486 | unsigned int x, unsigned int y, | |
1487 | unsigned int w, unsigned int h) | |
1488 | { | |
1489 | unsigned int maxwidth, maxheight; | |
1490 | unsigned int d; | |
1491 | ||
1492 | maxwidth = vino_data_norms[vcs->data_norm].width; | |
1493 | maxheight = vino_data_norms[vcs->data_norm].height; | |
1494 | d = vcs->decimation; | |
1495 | ||
1496 | y &= ~1; /* odd/even fields */ | |
1497 | ||
1498 | if (x > maxwidth) { | |
1499 | x = 0; | |
1500 | } | |
1501 | if (y > maxheight) { | |
1502 | y = 0; | |
1503 | } | |
1504 | ||
1505 | if (((w / d) < VINO_MIN_WIDTH) | |
1506 | || ((h / d) < VINO_MIN_HEIGHT)) { | |
1507 | w = VINO_MIN_WIDTH * d; | |
1508 | h = VINO_MIN_HEIGHT * d; | |
1509 | } | |
1510 | ||
1511 | if ((x + w) > maxwidth) { | |
1512 | w = maxwidth - x; | |
1513 | if ((w / d) < VINO_MIN_WIDTH) | |
1514 | x = maxwidth - VINO_MIN_WIDTH * d; | |
1515 | } | |
1516 | if ((y + h) > maxheight) { | |
1517 | h = maxheight - y; | |
1518 | if ((h / d) < VINO_MIN_HEIGHT) | |
1519 | y = maxheight - VINO_MIN_HEIGHT * d; | |
1520 | } | |
1521 | ||
1522 | vcs->clipping.left = x; | |
1523 | vcs->clipping.top = y; | |
1524 | vcs->clipping.right = x + w; | |
1525 | vcs->clipping.bottom = y + h; | |
1526 | ||
1527 | vino_update_line_size(vcs); | |
1528 | ||
1529 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", | |
1530 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, | |
1531 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); | |
1532 | } | |
1533 | ||
1534 | /* execute with input_lock locked */ | |
1535 | static void vino_set_default_clipping(struct vino_channel_settings *vcs) | |
1536 | { | |
1537 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, | |
1538 | vino_data_norms[vcs->data_norm].height); | |
1539 | } | |
1540 | ||
1541 | /* execute with input_lock locked */ | |
1542 | static void vino_set_scaling(struct vino_channel_settings *vcs, | |
1543 | unsigned int w, unsigned int h) | |
1544 | { | |
1545 | unsigned int x, y, curw, curh, d; | |
1546 | ||
1547 | x = vcs->clipping.left; | |
1548 | y = vcs->clipping.top; | |
1549 | curw = vcs->clipping.right - vcs->clipping.left; | |
1550 | curh = vcs->clipping.bottom - vcs->clipping.top; | |
1551 | ||
1552 | d = max(curw / w, curh / h); | |
1553 | ||
1554 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", | |
1555 | w, h, curw, curh, d); | |
1556 | ||
1557 | if (d < 1) { | |
1558 | d = 1; | |
1559 | } | |
1560 | if (d > 8) { | |
1561 | d = 8; | |
1562 | } | |
1563 | ||
1564 | vcs->decimation = d; | |
1565 | vino_set_clipping(vcs, x, y, w * d, h * d); | |
1566 | ||
1567 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, | |
1568 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, | |
1569 | vcs->decimation, vcs->line_size); | |
1570 | } | |
1571 | ||
1572 | /* execute with input_lock locked */ | |
1573 | static void vino_reset_scaling(struct vino_channel_settings *vcs) | |
1574 | { | |
1575 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, | |
1576 | vcs->clipping.bottom - vcs->clipping.top); | |
1577 | } | |
1578 | ||
1579 | /* execute with input_lock locked */ | |
1580 | static void vino_set_framerate(struct vino_channel_settings *vcs, | |
1581 | unsigned int fps) | |
1582 | { | |
1583 | unsigned int mask; | |
1584 | ||
1585 | switch (vcs->data_norm) { | |
1586 | case VINO_DATA_NORM_NTSC: | |
1587 | case VINO_DATA_NORM_D1: | |
1588 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! | |
1589 | ||
1590 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1591 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1592 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1593 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1594 | ||
1595 | switch (fps) { | |
1596 | case 6: | |
1597 | mask = 0x003; | |
1598 | break; | |
1599 | case 12: | |
1600 | mask = 0x0c3; | |
1601 | break; | |
1602 | case 18: | |
1603 | mask = 0x333; | |
1604 | break; | |
1605 | case 24: | |
1606 | mask = 0x3ff; | |
1607 | break; | |
1608 | case 30: | |
1609 | mask = 0xfff; | |
1610 | break; | |
1611 | default: | |
1612 | mask = VINO_FRAMERT_FULL; | |
1613 | } | |
1614 | vcs->framert_reg = VINO_FRAMERT_RT(mask); | |
1615 | break; | |
1616 | case VINO_DATA_NORM_PAL: | |
1617 | case VINO_DATA_NORM_SECAM: | |
1618 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! | |
1619 | ||
1620 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1621 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1622 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1623 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1624 | ||
1625 | switch (fps) { | |
1626 | case 5: | |
1627 | mask = 0x003; | |
1628 | break; | |
1629 | case 10: | |
1630 | mask = 0x0c3; | |
1631 | break; | |
1632 | case 15: | |
1633 | mask = 0x333; | |
1634 | break; | |
1635 | case 20: | |
1636 | mask = 0x0ff; | |
1637 | break; | |
1638 | case 25: | |
1639 | mask = 0x3ff; | |
1640 | break; | |
1641 | default: | |
1642 | mask = VINO_FRAMERT_FULL; | |
1643 | } | |
1644 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; | |
1645 | break; | |
1646 | } | |
1647 | ||
1648 | vcs->fps = fps; | |
1649 | } | |
1650 | ||
1651 | /* execute with input_lock locked */ | |
1652 | static void vino_set_default_framerate(struct vino_channel_settings *vcs) | |
1653 | { | |
1654 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); | |
1655 | } | |
1656 | ||
1657 | /* | |
1658 | * Prepare VINO for DMA transfer... | |
1659 | * (execute only with vino_lock and input_lock locked) | |
1660 | */ | |
1661 | static int vino_dma_setup(struct vino_channel_settings *vcs, | |
1662 | struct vino_framebuffer *fb) | |
1663 | { | |
1664 | u32 ctrl, intr; | |
1665 | struct sgi_vino_channel *ch; | |
1666 | const struct vino_data_norm *norm; | |
1667 | ||
1668 | dprintk("vino_dma_setup():\n"); | |
1669 | ||
1670 | vcs->field = 0; | |
1671 | fb->frame_counter = 0; | |
1672 | ||
1673 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1674 | norm = &vino_data_norms[vcs->data_norm]; | |
1675 | ||
1676 | ch->page_index = 0; | |
1677 | ch->line_count = 0; | |
1678 | ||
1679 | /* VINO line size register is set 8 bytes less than actual */ | |
1680 | ch->line_size = vcs->line_size - 8; | |
1681 | ||
1682 | /* let VINO know where to transfer data */ | |
1683 | ch->start_desc_tbl = fb->desc_table.dma; | |
1684 | ch->next_4_desc = fb->desc_table.dma; | |
1685 | ||
1686 | /* give vino time to fetch the first four descriptors, 5 usec | |
1687 | * should be more than enough time */ | |
1688 | udelay(VINO_DESC_FETCH_DELAY); | |
1689 | ||
1690 | /* set the alpha register */ | |
1691 | ch->alpha = vcs->alpha; | |
1692 | ||
1693 | /* set clipping registers */ | |
1694 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | | |
1695 | VINO_CLIP_EVEN(norm->even.top + | |
1696 | vcs->clipping.top / 2) | | |
1697 | VINO_CLIP_X(vcs->clipping.left); | |
1698 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + | |
1699 | vcs->clipping.bottom / 2 - 1) | | |
1700 | VINO_CLIP_EVEN(norm->even.top + | |
1701 | vcs->clipping.bottom / 2 - 1) | | |
1702 | VINO_CLIP_X(vcs->clipping.right); | |
1703 | /* FIXME: end-of-field bug workaround | |
1704 | VINO_CLIP_X(VINO_PAL_WIDTH); | |
1705 | */ | |
1706 | ||
1707 | /* set the size of actual content in the buffer (DECIMATION !) */ | |
1708 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / | |
1709 | vcs->decimation) * | |
1710 | ((vcs->clipping.bottom - vcs->clipping.top) / | |
1711 | vcs->decimation) * | |
1712 | vino_data_formats[vcs->data_format].bpp; | |
1713 | ||
1714 | ch->frame_rate = vcs->framert_reg; | |
1715 | ||
1716 | ctrl = vino->control; | |
1717 | intr = vino->intr_status; | |
1718 | ||
1719 | if (vcs->channel == VINO_CHANNEL_A) { | |
1720 | /* All interrupt conditions for this channel was cleared | |
1721 | * so clear the interrupt status register and enable | |
1722 | * interrupts */ | |
1723 | intr &= ~VINO_INTSTAT_A; | |
1724 | ctrl |= VINO_CTRL_A_INT; | |
1725 | ||
1726 | /* enable synchronization */ | |
1727 | ctrl |= VINO_CTRL_A_SYNC_ENBL; | |
1728 | ||
1729 | /* enable frame assembly */ | |
1730 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; | |
1731 | ||
1732 | /* set decimation used */ | |
1733 | if (vcs->decimation < 2) | |
1734 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; | |
1735 | else { | |
1736 | ctrl |= VINO_CTRL_A_DEC_ENBL; | |
1737 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; | |
1738 | ctrl |= (vcs->decimation - 1) << | |
1739 | VINO_CTRL_A_DEC_SCALE_SHIFT; | |
1740 | } | |
1741 | ||
1742 | /* select input interface */ | |
1743 | if (vcs->input == VINO_INPUT_D1) | |
1744 | ctrl |= VINO_CTRL_A_SELECT; | |
1745 | else | |
1746 | ctrl &= ~VINO_CTRL_A_SELECT; | |
1747 | ||
1748 | /* palette */ | |
1749 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | | |
1750 | VINO_CTRL_A_DITHER); | |
1751 | } else { | |
1752 | intr &= ~VINO_INTSTAT_B; | |
1753 | ctrl |= VINO_CTRL_B_INT; | |
1754 | ||
1755 | ctrl |= VINO_CTRL_B_SYNC_ENBL; | |
1756 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; | |
1757 | ||
1758 | if (vcs->decimation < 2) | |
1759 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; | |
1760 | else { | |
1761 | ctrl |= VINO_CTRL_B_DEC_ENBL; | |
1762 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; | |
1763 | ctrl |= (vcs->decimation - 1) << | |
1764 | VINO_CTRL_B_DEC_SCALE_SHIFT; | |
1765 | ||
1766 | } | |
1767 | if (vcs->input == VINO_INPUT_D1) | |
1768 | ctrl |= VINO_CTRL_B_SELECT; | |
1769 | else | |
1770 | ctrl &= ~VINO_CTRL_B_SELECT; | |
1771 | ||
1772 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | | |
1773 | VINO_CTRL_B_DITHER); | |
1774 | } | |
1775 | ||
1776 | /* set palette */ | |
1777 | fb->data_format = vcs->data_format; | |
1778 | ||
1779 | switch (vcs->data_format) { | |
1780 | case VINO_DATA_FMT_GREY: | |
1781 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1782 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; | |
1783 | break; | |
1784 | case VINO_DATA_FMT_RGB32: | |
1785 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1786 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; | |
1787 | break; | |
1788 | case VINO_DATA_FMT_YUV: | |
1789 | /* nothing needs to be done */ | |
1790 | break; | |
1791 | case VINO_DATA_FMT_RGB332: | |
1792 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1793 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : | |
1794 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; | |
1795 | break; | |
1796 | } | |
1797 | ||
1798 | vino->intr_status = intr; | |
1799 | vino->control = ctrl; | |
1800 | ||
1801 | return 0; | |
1802 | } | |
1803 | ||
1804 | /* (execute only with vino_lock locked) */ | |
1805 | static void vino_dma_start(struct vino_channel_settings *vcs) | |
1806 | { | |
1807 | u32 ctrl = vino->control; | |
1808 | ||
1809 | dprintk("vino_dma_start():\n"); | |
1810 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1811 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; | |
1812 | vino->control = ctrl; | |
1813 | } | |
1814 | ||
1815 | /* (execute only with vino_lock locked) */ | |
1816 | static void vino_dma_stop(struct vino_channel_settings *vcs) | |
1817 | { | |
1818 | u32 ctrl = vino->control; | |
1819 | ||
1820 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? | |
1821 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; | |
1822 | vino->control = ctrl; | |
1823 | dprintk("vino_dma_stop():\n"); | |
1824 | } | |
1825 | ||
1826 | /* | |
1827 | * Load dummy page to descriptor registers. This prevents generating of | |
1828 | * spurious interrupts. (execute only with vino_lock locked) | |
1829 | */ | |
1830 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) | |
1831 | { | |
1832 | struct sgi_vino_channel *ch; | |
1833 | ||
1834 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1835 | ||
1836 | ch->page_index = 0; | |
1837 | ch->line_count = 0; | |
1838 | ||
1839 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; | |
1840 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
1841 | ||
1842 | udelay(VINO_DESC_FETCH_DELAY); | |
1843 | dprintk("channel %c clear interrupt condition\n", | |
1844 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); | |
1845 | } | |
1846 | ||
1847 | static int vino_capture(struct vino_channel_settings *vcs, | |
1848 | struct vino_framebuffer *fb) | |
1849 | { | |
1850 | int err = 0; | |
1851 | unsigned long flags, flags2; | |
1852 | ||
1853 | spin_lock_irqsave(&fb->state_lock, flags); | |
1854 | ||
1855 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
1856 | err = -EBUSY; | |
1857 | fb->state = VINO_FRAMEBUFFER_IN_USE; | |
1858 | ||
1859 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
1860 | ||
1861 | if (err) | |
1862 | return err; | |
1863 | ||
1864 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
1865 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); | |
1866 | ||
1867 | vino_dma_setup(vcs, fb); | |
1868 | vino_dma_start(vcs); | |
1869 | ||
1870 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); | |
1871 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
1872 | ||
1873 | return err; | |
1874 | } | |
1875 | ||
1876 | static | |
1877 | struct vino_framebuffer *vino_capture_enqueue(struct | |
1878 | vino_channel_settings *vcs, | |
1879 | unsigned int index) | |
1880 | { | |
1881 | struct vino_framebuffer *fb; | |
1882 | unsigned long flags; | |
1883 | ||
1884 | dprintk("vino_capture_enqueue():\n"); | |
1885 | ||
1886 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1887 | ||
1888 | fb = vino_queue_add(&vcs->fb_queue, index); | |
1889 | if (fb == NULL) { | |
1890 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " | |
1891 | "queue full?\n"); | |
1892 | goto out; | |
1893 | } | |
1894 | out: | |
1895 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1896 | ||
1897 | return fb; | |
1898 | } | |
1899 | ||
1900 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) | |
1901 | { | |
1902 | struct vino_framebuffer *fb; | |
1903 | unsigned int incoming, id; | |
1904 | int err = 0; | |
1905 | unsigned long flags, flags2; | |
1906 | ||
1907 | dprintk("vino_capture_next():\n"); | |
1908 | ||
1909 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1910 | ||
1911 | if (start) { | |
1912 | /* start capture only if capture isn't in progress already */ | |
1913 | if (vcs->capturing) { | |
1914 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1915 | return 0; | |
1916 | } | |
1917 | ||
1918 | } else { | |
1919 | /* capture next frame: | |
1920 | * stop capture if capturing is not set */ | |
1921 | if (!vcs->capturing) { | |
1922 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1923 | return 0; | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
1928 | if (err) { | |
1929 | dprintk("vino_capture_next(): vino_queue_get_incoming() " | |
1930 | "failed\n"); | |
1931 | err = -EINVAL; | |
1932 | goto out; | |
1933 | } | |
1934 | if (incoming == 0) { | |
1935 | dprintk("vino_capture_next(): no buffers available\n"); | |
1936 | goto out; | |
1937 | } | |
1938 | ||
1939 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
1940 | if (fb == NULL) { | |
1941 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); | |
1942 | err = -EINVAL; | |
1943 | goto out; | |
1944 | } | |
1945 | ||
1946 | spin_lock_irqsave(&fb->state_lock, flags2); | |
1947 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
1948 | spin_unlock_irqrestore(&fb->state_lock, flags2); | |
1949 | ||
1950 | if (start) { | |
1951 | vcs->capturing = 1; | |
1952 | } | |
1953 | ||
1954 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1955 | ||
1956 | err = vino_capture(vcs, fb); | |
1957 | ||
1958 | return err; | |
1959 | ||
1960 | out: | |
1961 | vcs->capturing = 0; | |
1962 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1963 | ||
1964 | return err; | |
1965 | } | |
1966 | ||
1967 | static int vino_is_capturing(struct vino_channel_settings *vcs) | |
1968 | { | |
1969 | int ret; | |
1970 | unsigned long flags; | |
1971 | ||
1972 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1973 | ||
1974 | ret = vcs->capturing; | |
1975 | ||
1976 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1977 | ||
1978 | return ret; | |
1979 | } | |
1980 | ||
1981 | /* waits until a frame is captured */ | |
1982 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) | |
1983 | { | |
1984 | wait_queue_t wait; | |
1985 | int err = 0; | |
1986 | ||
1987 | dprintk("vino_wait_for_frame():\n"); | |
1988 | ||
1989 | init_waitqueue_entry(&wait, current); | |
1990 | /* add ourselves into wait queue */ | |
1991 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
1992 | /* and set current state */ | |
1993 | set_current_state(TASK_INTERRUPTIBLE); | |
1994 | ||
1995 | /* to ensure that schedule_timeout will return immediately | |
1996 | * if VINO interrupt was triggred meanwhile */ | |
1997 | schedule_timeout(HZ / 10); | |
1998 | ||
1999 | if (signal_pending(current)) | |
2000 | err = -EINTR; | |
2001 | ||
2002 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2003 | ||
2004 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", | |
2005 | err ? "failed" : "ok"); | |
2006 | ||
2007 | return err; | |
2008 | } | |
2009 | ||
2010 | /* the function assumes that PAGE_SIZE % 4 == 0 */ | |
2011 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { | |
2012 | unsigned char *pageptr; | |
2013 | unsigned int page, i; | |
2014 | unsigned char a; | |
2015 | ||
2016 | for (page = 0; page < fb->desc_table.page_count; page++) { | |
2017 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; | |
2018 | ||
2019 | for (i = 0; i < PAGE_SIZE; i += 4) { | |
2020 | a = pageptr[0]; | |
2021 | pageptr[0] = pageptr[3]; | |
2022 | pageptr[1] = pageptr[2]; | |
2023 | pageptr[2] = pageptr[1]; | |
2024 | pageptr[3] = a; | |
2025 | pageptr += 4; | |
2026 | } | |
2027 | } | |
2028 | } | |
2029 | ||
2030 | /* checks if the buffer is in correct state and syncs data */ | |
2031 | static int vino_check_buffer(struct vino_channel_settings *vcs, | |
2032 | struct vino_framebuffer *fb) | |
2033 | { | |
2034 | int err = 0; | |
2035 | unsigned long flags; | |
2036 | ||
2037 | dprintk("vino_check_buffer():\n"); | |
2038 | ||
2039 | spin_lock_irqsave(&fb->state_lock, flags); | |
2040 | switch (fb->state) { | |
2041 | case VINO_FRAMEBUFFER_IN_USE: | |
2042 | err = -EIO; | |
2043 | break; | |
2044 | case VINO_FRAMEBUFFER_READY: | |
2045 | vino_sync_buffer(fb); | |
2046 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2047 | break; | |
2048 | default: | |
2049 | err = -EINVAL; | |
2050 | } | |
2051 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2052 | ||
2053 | if (!err) { | |
2054 | if (vino_pixel_conversion | |
2055 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { | |
2056 | vino_convert_to_rgba(fb); | |
2057 | } | |
2058 | } else if (err && (err != -EINVAL)) { | |
2059 | dprintk("vino_check_buffer(): buffer not ready\n"); | |
2060 | ||
2061 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2062 | vino_dma_stop(vcs); | |
2063 | vino_clear_interrupt(vcs); | |
2064 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2065 | } | |
2066 | ||
2067 | return err; | |
2068 | } | |
2069 | ||
2070 | /* forcefully terminates capture */ | |
2071 | static void vino_capture_stop(struct vino_channel_settings *vcs) | |
2072 | { | |
2073 | unsigned int incoming = 0, outgoing = 0, id; | |
2074 | unsigned long flags, flags2; | |
2075 | ||
2076 | dprintk("vino_capture_stop():\n"); | |
2077 | ||
2078 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2079 | /* unset capturing to stop queue processing */ | |
2080 | vcs->capturing = 0; | |
2081 | ||
2082 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); | |
2083 | ||
2084 | vino_dma_stop(vcs); | |
2085 | vino_clear_interrupt(vcs); | |
2086 | ||
2087 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); | |
2088 | ||
2089 | /* remove all items from the queue */ | |
2090 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2091 | dprintk("vino_capture_stop(): " | |
2092 | "vino_queue_get_incoming() failed\n"); | |
2093 | goto out; | |
2094 | } | |
2095 | while (incoming > 0) { | |
2096 | vino_queue_transfer(&vcs->fb_queue); | |
2097 | ||
2098 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2099 | dprintk("vino_capture_stop(): " | |
2100 | "vino_queue_get_incoming() failed\n"); | |
2101 | goto out; | |
2102 | } | |
2103 | } | |
2104 | ||
2105 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2106 | dprintk("vino_capture_stop(): " | |
2107 | "vino_queue_get_outgoing() failed\n"); | |
2108 | goto out; | |
2109 | } | |
2110 | while (outgoing > 0) { | |
2111 | vino_queue_remove(&vcs->fb_queue, &id); | |
2112 | ||
2113 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2114 | dprintk("vino_capture_stop(): " | |
2115 | "vino_queue_get_outgoing() failed\n"); | |
2116 | goto out; | |
2117 | } | |
2118 | } | |
2119 | ||
2120 | out: | |
2121 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2122 | } | |
2123 | ||
2124 | static int vino_capture_failed(struct vino_channel_settings *vcs) | |
2125 | { | |
2126 | struct vino_framebuffer *fb; | |
2127 | unsigned long flags; | |
2128 | unsigned int i; | |
2129 | int ret; | |
2130 | ||
2131 | dprintk("vino_capture_failed():\n"); | |
2132 | ||
2133 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2134 | ||
2135 | vino_dma_stop(vcs); | |
2136 | vino_clear_interrupt(vcs); | |
2137 | ||
2138 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2139 | ||
2140 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); | |
2141 | if (ret == VINO_QUEUE_ERROR) { | |
2142 | dprintk("vino_queue_get_incoming() failed\n"); | |
2143 | return -EINVAL; | |
2144 | } | |
2145 | if (i == 0) { | |
2146 | /* no buffers to process */ | |
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | fb = vino_queue_peek(&vcs->fb_queue, &i); | |
2151 | if (fb == NULL) { | |
2152 | dprintk("vino_queue_peek() failed\n"); | |
2153 | return -EINVAL; | |
2154 | } | |
2155 | ||
2156 | spin_lock_irqsave(&fb->state_lock, flags); | |
2157 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { | |
2158 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2159 | vino_queue_transfer(&vcs->fb_queue); | |
2160 | vino_queue_remove(&vcs->fb_queue, &i); | |
2161 | /* we should actually discard the newest frame, | |
2162 | * but who cares ... */ | |
2163 | } | |
2164 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2165 | ||
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | static void vino_frame_done(struct vino_channel_settings *vcs, | |
2170 | unsigned int fc) | |
2171 | { | |
2172 | struct vino_framebuffer *fb; | |
2173 | unsigned long flags; | |
2174 | ||
2175 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2176 | fb = vino_queue_transfer(&vcs->fb_queue); | |
2177 | if (!fb) { | |
2178 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2179 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); | |
2180 | return; | |
2181 | } | |
2182 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2183 | ||
2184 | fb->frame_counter = fc; | |
2185 | do_gettimeofday(&fb->timestamp); | |
2186 | ||
2187 | spin_lock_irqsave(&fb->state_lock, flags); | |
2188 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
2189 | fb->state = VINO_FRAMEBUFFER_READY; | |
2190 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2191 | ||
2192 | wake_up(&vcs->fb_queue.frame_wait_queue); | |
2193 | ||
2194 | vino_capture_next(vcs, 0); | |
2195 | } | |
2196 | ||
2197 | static irqreturn_t vino_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
2198 | { | |
2199 | u32 intr; | |
2200 | unsigned int fc_a, fc_b; | |
2201 | int done_a = 0; | |
2202 | int done_b = 0; | |
2203 | ||
2204 | spin_lock(&vino_drvdata->vino_lock); | |
2205 | ||
2206 | intr = vino->intr_status; | |
2207 | fc_a = vino->a.field_counter / 2; | |
2208 | fc_b = vino->b.field_counter / 2; | |
2209 | ||
2210 | // TODO: handle error-interrupts in some special way ? | |
2211 | ||
2212 | if (intr & VINO_INTSTAT_A) { | |
2213 | if (intr & VINO_INTSTAT_A_EOF) { | |
2214 | vino_drvdata->a.field++; | |
2215 | if (vino_drvdata->a.field > 1) { | |
2216 | vino_dma_stop(&vino_drvdata->a); | |
2217 | vino_clear_interrupt(&vino_drvdata->a); | |
2218 | vino_drvdata->a.field = 0; | |
2219 | done_a = 1; | |
2220 | } | |
2221 | dprintk("intr: channel A end-of-field interrupt: " | |
2222 | "%04x\n", intr); | |
2223 | } else { | |
2224 | vino_dma_stop(&vino_drvdata->a); | |
2225 | vino_clear_interrupt(&vino_drvdata->a); | |
2226 | done_a = 1; | |
2227 | dprintk("channel A error interrupt: %04x\n", intr); | |
2228 | } | |
2229 | } | |
2230 | if (intr & VINO_INTSTAT_B) { | |
2231 | if (intr & VINO_INTSTAT_B_EOF) { | |
2232 | vino_drvdata->b.field++; | |
2233 | if (vino_drvdata->b.field > 1) { | |
2234 | vino_dma_stop(&vino_drvdata->b); | |
2235 | vino_clear_interrupt(&vino_drvdata->b); | |
2236 | vino_drvdata->b.field = 0; | |
2237 | done_b = 1; | |
2238 | } | |
2239 | dprintk("intr: channel B end-of-field interrupt: " | |
2240 | "%04x\n", intr); | |
2241 | } else { | |
2242 | vino_dma_stop(&vino_drvdata->b); | |
2243 | vino_clear_interrupt(&vino_drvdata->b); | |
2244 | done_b = 1; | |
2245 | dprintk("channel B error interrupt: %04x\n", intr); | |
2246 | } | |
2247 | } | |
2248 | ||
2249 | /* always remember to clear interrupt status */ | |
2250 | vino->intr_status = ~intr; | |
2251 | ||
2252 | spin_unlock(&vino_drvdata->vino_lock); | |
2253 | ||
2254 | if (done_a) { | |
2255 | vino_frame_done(&vino_drvdata->a, fc_a); | |
2256 | dprintk("channel A frame done, interrupt: %d\n", intr); | |
2257 | } | |
2258 | if (done_b) { | |
2259 | vino_frame_done(&vino_drvdata->b, fc_b); | |
2260 | dprintk("channel B frame done, interrupt: %d\n", intr); | |
2261 | } | |
2262 | ||
2263 | return IRQ_HANDLED; | |
2264 | } | |
2265 | ||
2266 | /* VINO video input management */ | |
2267 | ||
2268 | static int vino_get_saa7191_input(int input) | |
2269 | { | |
2270 | switch (input) { | |
2271 | case VINO_INPUT_COMPOSITE: | |
2272 | return SAA7191_INPUT_COMPOSITE; | |
2273 | case VINO_INPUT_SVIDEO: | |
2274 | return SAA7191_INPUT_SVIDEO; | |
2275 | default: | |
2276 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " | |
2277 | "invalid input!\n"); | |
2278 | return -1; | |
2279 | } | |
2280 | } | |
2281 | ||
2282 | static int vino_get_saa7191_norm(int norm) | |
2283 | { | |
2284 | switch (norm) { | |
2285 | case VINO_DATA_NORM_AUTO: | |
2286 | return SAA7191_NORM_AUTO; | |
2287 | case VINO_DATA_NORM_PAL: | |
2288 | return SAA7191_NORM_PAL; | |
2289 | case VINO_DATA_NORM_NTSC: | |
2290 | return SAA7191_NORM_NTSC; | |
2291 | case VINO_DATA_NORM_SECAM: | |
2292 | return SAA7191_NORM_SECAM; | |
2293 | default: | |
2294 | printk(KERN_ERR "VINO: vino_get_saa7191_norm(): " | |
2295 | "invalid norm!\n"); | |
2296 | return -1; | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | /* execute with input_lock locked */ | |
2301 | static int vino_is_input_owner(struct vino_channel_settings *vcs) | |
2302 | { | |
2303 | switch(vcs->input) { | |
2304 | case VINO_INPUT_COMPOSITE: | |
2305 | case VINO_INPUT_SVIDEO: | |
2306 | return (vino_drvdata->decoder.owner == vcs->channel); | |
2307 | case VINO_INPUT_D1: | |
2308 | return (vino_drvdata->camera.owner == vcs->channel); | |
2309 | default: | |
2310 | return 0; | |
2311 | } | |
2312 | } | |
2313 | ||
2314 | static int vino_acquire_input(struct vino_channel_settings *vcs) | |
2315 | { | |
2316 | int ret = 0; | |
2317 | ||
2318 | dprintk("vino_acquire_input():\n"); | |
2319 | ||
2320 | spin_lock(&vino_drvdata->input_lock); | |
2321 | ||
2322 | /* First try D1 and then SAA7191 */ | |
2323 | if (vino_drvdata->camera.driver | |
2324 | && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { | |
2325 | if (i2c_use_client(vino_drvdata->camera.driver)) { | |
2326 | ret = -ENODEV; | |
2327 | goto out; | |
2328 | } | |
2329 | ||
2330 | vino_drvdata->camera.owner = vcs->channel; | |
2331 | vcs->input = VINO_INPUT_D1; | |
2332 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2333 | } else if (vino_drvdata->decoder.driver | |
2334 | && (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) { | |
2335 | int saa7191_input; | |
2336 | int saa7191_norm; | |
2337 | ||
2338 | if (i2c_use_client(vino_drvdata->decoder.driver)) { | |
2339 | ret = -ENODEV; | |
2340 | goto out; | |
2341 | } | |
2342 | ||
2343 | vino_drvdata->decoder.owner = vcs->channel; | |
2344 | vcs->input = VINO_INPUT_COMPOSITE; | |
2345 | vcs->data_norm = VINO_DATA_NORM_PAL; | |
2346 | ||
2347 | saa7191_input = vino_get_saa7191_input(vcs->input); | |
2348 | i2c_decoder_command(DECODER_SET_INPUT, &saa7191_input); | |
2349 | ||
2350 | saa7191_norm = vino_get_saa7191_norm(vcs->data_norm); | |
2351 | i2c_decoder_command(DECODER_SAA7191_SET_NORM, &saa7191_norm); | |
2352 | } else { | |
2353 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? | |
2354 | vino_drvdata->b.input : vino_drvdata->a.input; | |
2355 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? | |
2356 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; | |
2357 | } | |
2358 | ||
2359 | if (vcs->input == VINO_INPUT_NONE) { | |
2360 | ret = -ENODEV; | |
2361 | goto out; | |
2362 | } | |
2363 | ||
2364 | if (vino_is_input_owner(vcs)) { | |
2365 | vino_set_default_clipping(vcs); | |
2366 | vino_set_default_framerate(vcs); | |
2367 | } | |
2368 | ||
2369 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); | |
2370 | ||
2371 | out: | |
2372 | spin_unlock(&vino_drvdata->input_lock); | |
2373 | ||
2374 | return ret; | |
2375 | } | |
2376 | ||
2377 | static int vino_set_input(struct vino_channel_settings *vcs, int input) | |
2378 | { | |
2379 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2380 | &vino_drvdata->b : &vino_drvdata->a; | |
2381 | int ret = 0; | |
2382 | ||
2383 | dprintk("vino_set_input():\n"); | |
2384 | ||
2385 | spin_lock(&vino_drvdata->input_lock); | |
2386 | ||
2387 | if (vcs->input == input) | |
2388 | goto out; | |
2389 | ||
2390 | switch(input) { | |
2391 | case VINO_INPUT_COMPOSITE: | |
2392 | case VINO_INPUT_SVIDEO: | |
2393 | if (!vino_drvdata->decoder.driver) { | |
2394 | ret = -EINVAL; | |
2395 | goto out; | |
2396 | } | |
2397 | ||
2398 | if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { | |
2399 | if (i2c_use_client(vino_drvdata->decoder.driver)) { | |
2400 | ret = -ENODEV; | |
2401 | goto out; | |
2402 | } | |
2403 | vino_drvdata->decoder.owner = vcs->channel; | |
2404 | } | |
2405 | ||
2406 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
2407 | int saa7191_input; | |
2408 | int saa7191_norm; | |
2409 | ||
2410 | vcs->input = input; | |
2411 | vcs->data_norm = VINO_DATA_NORM_PAL; | |
2412 | ||
2413 | saa7191_input = vino_get_saa7191_input(vcs->input); | |
2414 | i2c_decoder_command(DECODER_SET_INPUT, &saa7191_input); | |
2415 | saa7191_norm = vino_get_saa7191_norm(vcs->data_norm); | |
2416 | i2c_decoder_command(DECODER_SAA7191_SET_NORM, | |
2417 | &saa7191_norm); | |
2418 | } else { | |
2419 | if (vcs2->input != input) { | |
2420 | ret = -EBUSY; | |
2421 | goto out; | |
2422 | } | |
2423 | ||
2424 | vcs->input = input; | |
2425 | vcs->data_norm = vcs2->data_norm; | |
2426 | } | |
2427 | ||
2428 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2429 | /* Transfer the ownership or release the input */ | |
2430 | if (vcs2->input == VINO_INPUT_D1) { | |
2431 | vino_drvdata->camera.owner = vcs2->channel; | |
2432 | } else { | |
2433 | i2c_release_client(vino_drvdata-> | |
2434 | camera.driver); | |
2435 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2436 | } | |
2437 | } | |
2438 | break; | |
2439 | case VINO_INPUT_D1: | |
2440 | if (!vino_drvdata->camera.driver) { | |
2441 | ret = -EINVAL; | |
2442 | goto out; | |
2443 | } | |
2444 | ||
2445 | if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { | |
2446 | if (i2c_use_client(vino_drvdata->camera.driver)) { | |
2447 | ret = -ENODEV; | |
2448 | goto out; | |
2449 | } | |
2450 | vino_drvdata->camera.owner = vcs->channel; | |
2451 | } | |
2452 | ||
2453 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
2454 | /* Transfer the ownership or release the input */ | |
2455 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2456 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2457 | vino_drvdata->decoder.owner = vcs2->channel; | |
2458 | } else { | |
2459 | i2c_release_client(vino_drvdata-> | |
2460 | decoder.driver); | |
2461 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | vcs->input = input; | |
2466 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2467 | break; | |
2468 | default: | |
2469 | ret = -EINVAL; | |
2470 | goto out; | |
2471 | } | |
2472 | ||
2473 | vino_set_default_clipping(vcs); | |
2474 | vino_set_default_framerate(vcs); | |
2475 | ||
2476 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); | |
2477 | ||
2478 | out: | |
2479 | spin_unlock(&vino_drvdata->input_lock); | |
2480 | ||
2481 | return ret; | |
2482 | } | |
2483 | ||
2484 | static void vino_release_input(struct vino_channel_settings *vcs) | |
2485 | { | |
2486 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2487 | &vino_drvdata->b : &vino_drvdata->a; | |
2488 | ||
2489 | dprintk("vino_release_input():\n"); | |
2490 | ||
2491 | spin_lock(&vino_drvdata->input_lock); | |
2492 | ||
2493 | /* Release ownership of the channel | |
2494 | * and if the other channel takes input from | |
2495 | * the same source, transfer the ownership */ | |
2496 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2497 | if (vcs2->input == VINO_INPUT_D1) { | |
2498 | vino_drvdata->camera.owner = vcs2->channel; | |
2499 | } else { | |
2500 | i2c_release_client(vino_drvdata->camera.driver); | |
2501 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2502 | } | |
2503 | } else if (vino_drvdata->decoder.owner == vcs->channel) { | |
2504 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2505 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2506 | vino_drvdata->decoder.owner = vcs2->channel; | |
2507 | } else { | |
2508 | i2c_release_client(vino_drvdata->decoder.driver); | |
2509 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2510 | } | |
2511 | } | |
2512 | vcs->input = VINO_INPUT_NONE; | |
2513 | ||
2514 | spin_unlock(&vino_drvdata->input_lock); | |
2515 | } | |
2516 | ||
2517 | /* execute with input_lock locked */ | |
2518 | static int vino_set_data_norm(struct vino_channel_settings *vcs, | |
2519 | unsigned int data_norm) | |
2520 | { | |
2521 | int saa7191_norm; | |
2522 | ||
2523 | switch (vcs->input) { | |
2524 | case VINO_INPUT_D1: | |
2525 | /* only one "norm" supported */ | |
2526 | if (data_norm != VINO_DATA_NORM_D1) | |
2527 | return -EINVAL; | |
2528 | break; | |
2529 | case VINO_INPUT_COMPOSITE: | |
2530 | case VINO_INPUT_SVIDEO: | |
2531 | ||
2532 | saa7191_norm = vino_get_saa7191_norm(data_norm); | |
2533 | ||
2534 | i2c_decoder_command(DECODER_SAA7191_SET_NORM, &saa7191_norm); | |
2535 | vcs->data_norm = data_norm; | |
2536 | break; | |
2537 | default: | |
2538 | return -EINVAL; | |
2539 | } | |
2540 | ||
2541 | return 0; | |
2542 | } | |
2543 | ||
2544 | /* V4L2 helper functions */ | |
2545 | ||
2546 | static int vino_find_data_format(__u32 pixelformat) | |
2547 | { | |
2548 | int i; | |
2549 | ||
2550 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { | |
2551 | if (vino_data_formats[i].pixelformat == pixelformat) | |
2552 | return i; | |
2553 | } | |
2554 | ||
2555 | return VINO_DATA_FMT_NONE; | |
2556 | } | |
2557 | ||
2558 | static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index) | |
2559 | { | |
2560 | int data_norm = VINO_DATA_NORM_NONE; | |
2561 | ||
2562 | spin_lock(&vino_drvdata->input_lock); | |
2563 | switch(vcs->input) { | |
2564 | case VINO_INPUT_COMPOSITE: | |
2565 | case VINO_INPUT_SVIDEO: | |
2566 | if (index == 0) { | |
2567 | data_norm = VINO_DATA_NORM_PAL; | |
2568 | } else if (index == 1) { | |
2569 | data_norm = VINO_DATA_NORM_NTSC; | |
2570 | } else if (index == 2) { | |
2571 | data_norm = VINO_DATA_NORM_SECAM; | |
2572 | } | |
2573 | break; | |
2574 | case VINO_INPUT_D1: | |
2575 | if (index == 0) { | |
2576 | data_norm = VINO_DATA_NORM_D1; | |
2577 | } | |
2578 | break; | |
2579 | } | |
2580 | spin_unlock(&vino_drvdata->input_lock); | |
2581 | ||
2582 | return data_norm; | |
2583 | } | |
2584 | ||
2585 | static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index) | |
2586 | { | |
2587 | int input = VINO_INPUT_NONE; | |
2588 | ||
2589 | spin_lock(&vino_drvdata->input_lock); | |
2590 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { | |
2591 | switch (index) { | |
2592 | case 0: | |
2593 | input = VINO_INPUT_COMPOSITE; | |
2594 | break; | |
2595 | case 1: | |
2596 | input = VINO_INPUT_SVIDEO; | |
2597 | break; | |
2598 | case 2: | |
2599 | input = VINO_INPUT_D1; | |
2600 | break; | |
2601 | } | |
2602 | } else if (vino_drvdata->decoder.driver) { | |
2603 | switch (index) { | |
2604 | case 0: | |
2605 | input = VINO_INPUT_COMPOSITE; | |
2606 | break; | |
2607 | case 1: | |
2608 | input = VINO_INPUT_SVIDEO; | |
2609 | break; | |
2610 | } | |
2611 | } else if (vino_drvdata->camera.driver) { | |
2612 | switch (index) { | |
2613 | case 0: | |
2614 | input = VINO_INPUT_D1; | |
2615 | break; | |
2616 | } | |
2617 | } | |
2618 | spin_unlock(&vino_drvdata->input_lock); | |
2619 | ||
2620 | return input; | |
2621 | } | |
2622 | ||
2623 | /* execute with input_lock locked */ | |
2624 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) | |
2625 | { | |
2626 | __u32 index = 0; | |
2627 | // FIXME: detect when no inputs available | |
2628 | ||
2629 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { | |
2630 | switch (vcs->input) { | |
2631 | case VINO_INPUT_COMPOSITE: | |
2632 | index = 0; | |
2633 | break; | |
2634 | case VINO_INPUT_SVIDEO: | |
2635 | index = 1; | |
2636 | break; | |
2637 | case VINO_INPUT_D1: | |
2638 | index = 2; | |
2639 | break; | |
2640 | } | |
2641 | } else if (vino_drvdata->decoder.driver) { | |
2642 | switch (vcs->input) { | |
2643 | case VINO_INPUT_COMPOSITE: | |
2644 | index = 0; | |
2645 | break; | |
2646 | case VINO_INPUT_SVIDEO: | |
2647 | index = 1; | |
2648 | break; | |
2649 | } | |
2650 | } else if (vino_drvdata->camera.driver) { | |
2651 | switch (vcs->input) { | |
2652 | case VINO_INPUT_D1: | |
2653 | index = 0; | |
2654 | break; | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | return index; | |
2659 | } | |
2660 | ||
2661 | /* V4L2 ioctls */ | |
2662 | ||
2663 | static void vino_v4l2_querycap(struct v4l2_capability *cap) | |
2664 | { | |
2665 | memset(cap, 0, sizeof(struct v4l2_capability)); | |
2666 | ||
2667 | strcpy(cap->driver, vino_driver_name); | |
2668 | strcpy(cap->card, vino_driver_description); | |
2669 | strcpy(cap->bus_info, vino_bus_name); | |
2670 | cap->version = VINO_VERSION_CODE; | |
2671 | cap->capabilities = | |
2672 | V4L2_CAP_VIDEO_CAPTURE | | |
2673 | V4L2_CAP_STREAMING; | |
2674 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE | |
2675 | } | |
2676 | ||
2677 | static int vino_v4l2_enuminput(struct vino_channel_settings *vcs, | |
2678 | struct v4l2_input *i) | |
2679 | { | |
2680 | __u32 index = i->index; | |
2681 | int input; | |
2682 | dprintk("requested index = %d\n", index); | |
2683 | ||
2684 | input = vino_enum_input(vcs, index); | |
2685 | if (input == VINO_INPUT_NONE) | |
2686 | return -EINVAL; | |
2687 | ||
2688 | memset(i, 0, sizeof(struct v4l2_input)); | |
2689 | ||
2690 | i->index = index; | |
2691 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
2692 | i->std = vino_inputs[input].std; | |
2693 | strcpy(i->name, vino_inputs[input].name); | |
2694 | ||
2695 | if ((input == VINO_INPUT_COMPOSITE) | |
2696 | || (input == VINO_INPUT_SVIDEO)) { | |
2697 | struct saa7191_status status; | |
2698 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
2699 | i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL; | |
2700 | i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR; | |
2701 | } | |
2702 | ||
2703 | return 0; | |
2704 | } | |
2705 | ||
2706 | static int vino_v4l2_g_input(struct vino_channel_settings *vcs, | |
2707 | struct v4l2_input *i) | |
2708 | { | |
2709 | __u32 index; | |
2710 | int input; | |
2711 | ||
2712 | spin_lock(&vino_drvdata->input_lock); | |
2713 | input = vcs->input; | |
2714 | index = vino_find_input_index(vcs); | |
2715 | spin_unlock(&vino_drvdata->input_lock); | |
2716 | ||
2717 | dprintk("input = %d\n", input); | |
2718 | ||
2719 | if (input == VINO_INPUT_NONE) { | |
2720 | return -EINVAL; | |
2721 | } | |
2722 | ||
2723 | memset(i, 0, sizeof(struct v4l2_input)); | |
2724 | ||
2725 | i->index = index; | |
2726 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
2727 | i->std = vino_inputs[input].std; | |
2728 | strcpy(i->name, vino_inputs[input].name); | |
2729 | ||
2730 | return 0; | |
2731 | } | |
2732 | ||
2733 | static int vino_v4l2_s_input(struct vino_channel_settings *vcs, | |
2734 | struct v4l2_input *i) | |
2735 | { | |
2736 | int input; | |
2737 | dprintk("requested input = %d\n", i->index); | |
2738 | ||
2739 | input = vino_enum_input(vcs, i->index); | |
2740 | if (input == VINO_INPUT_NONE) | |
2741 | return -EINVAL; | |
2742 | ||
2743 | return vino_set_input(vcs, input); | |
2744 | } | |
2745 | ||
2746 | static int vino_v4l2_enumstd(struct vino_channel_settings *vcs, | |
2747 | struct v4l2_standard *s) | |
2748 | { | |
2749 | int index = s->index; | |
2750 | int data_norm = vino_enum_data_norm(vcs, index); | |
2751 | dprintk("standard index = %d\n", index); | |
2752 | ||
2753 | if (data_norm == VINO_DATA_NORM_NONE) | |
2754 | return -EINVAL; | |
2755 | ||
2756 | dprintk("standard name = %s\n", | |
2757 | vino_data_norms[data_norm].description); | |
2758 | ||
2759 | memset(s, 0, sizeof(struct v4l2_standard)); | |
2760 | s->index = index; | |
2761 | ||
2762 | s->id = vino_data_norms[data_norm].std; | |
2763 | s->frameperiod.numerator = 1; | |
2764 | s->frameperiod.denominator = | |
2765 | vino_data_norms[data_norm].fps_max; | |
2766 | s->framelines = | |
2767 | vino_data_norms[data_norm].framelines; | |
2768 | strcpy(s->name, | |
2769 | vino_data_norms[data_norm].description); | |
2770 | ||
2771 | return 0; | |
2772 | } | |
2773 | ||
2774 | static int vino_v4l2_g_std(struct vino_channel_settings *vcs, | |
2775 | v4l2_std_id *std) | |
2776 | { | |
2777 | spin_lock(&vino_drvdata->input_lock); | |
2778 | dprintk("current standard = %d\n", vcs->data_norm); | |
2779 | *std = vino_data_norms[vcs->data_norm].std; | |
2780 | spin_unlock(&vino_drvdata->input_lock); | |
2781 | ||
2782 | return 0; | |
2783 | } | |
2784 | ||
2785 | static int vino_v4l2_s_std(struct vino_channel_settings *vcs, | |
2786 | v4l2_std_id *std) | |
2787 | { | |
2788 | int ret = 0; | |
2789 | ||
2790 | spin_lock(&vino_drvdata->input_lock); | |
2791 | ||
2792 | /* check if the standard is valid for the current input */ | |
2793 | if (vino_is_input_owner(vcs) | |
2794 | && (vino_inputs[vcs->input].std & (*std))) { | |
2795 | dprintk("standard accepted\n"); | |
2796 | ||
2797 | /* change the video norm for SAA7191 | |
2798 | * and accept NTSC for D1 (do nothing) */ | |
2799 | ||
2800 | if (vcs->input == VINO_INPUT_D1) | |
2801 | goto out; | |
2802 | ||
2803 | if ((*std) & V4L2_STD_PAL) { | |
2804 | vino_set_data_norm(vcs, VINO_DATA_NORM_PAL); | |
2805 | vcs->data_norm = VINO_DATA_NORM_PAL; | |
2806 | } else if ((*std) & V4L2_STD_NTSC) { | |
2807 | vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC); | |
2808 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
2809 | } else if ((*std) & V4L2_STD_SECAM) { | |
2810 | vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM); | |
2811 | vcs->data_norm = VINO_DATA_NORM_SECAM; | |
2812 | } else { | |
2813 | ret = -EINVAL; | |
2814 | } | |
2815 | } else { | |
2816 | ret = -EINVAL; | |
2817 | } | |
2818 | ||
2819 | out: | |
2820 | spin_unlock(&vino_drvdata->input_lock); | |
2821 | ||
2822 | return ret; | |
2823 | } | |
2824 | ||
2825 | static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs, | |
2826 | struct v4l2_fmtdesc *fd) | |
2827 | { | |
2828 | enum v4l2_buf_type type = fd->type; | |
2829 | int index = fd->index; | |
2830 | dprintk("format index = %d\n", index); | |
2831 | ||
2832 | switch (fd->type) { | |
2833 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
2834 | if ((fd->index < 0) || | |
2835 | (fd->index >= VINO_DATA_FMT_COUNT)) | |
2836 | return -EINVAL; | |
2837 | dprintk("format name = %s\n", | |
2838 | vino_data_formats[index].description); | |
2839 | ||
2840 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); | |
2841 | fd->index = index; | |
2842 | fd->type = type; | |
2843 | fd->pixelformat = vino_data_formats[index].pixelformat; | |
2844 | strcpy(fd->description, vino_data_formats[index].description); | |
2845 | break; | |
2846 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
2847 | default: | |
2848 | return -EINVAL; | |
2849 | } | |
2850 | ||
2851 | return 0; | |
2852 | } | |
2853 | ||
2854 | static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs, | |
2855 | struct v4l2_format *f) | |
2856 | { | |
2857 | struct vino_channel_settings tempvcs; | |
2858 | ||
2859 | switch (f->type) { | |
2860 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
2861 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
2862 | ||
2863 | dprintk("requested: w = %d, h = %d\n", | |
2864 | pf->width, pf->height); | |
2865 | ||
2866 | spin_lock(&vino_drvdata->input_lock); | |
2867 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); | |
2868 | spin_unlock(&vino_drvdata->input_lock); | |
2869 | ||
2870 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); | |
2871 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { | |
2872 | tempvcs.data_format = VINO_DATA_FMT_RGB32; | |
2873 | pf->pixelformat = | |
2874 | vino_data_formats[tempvcs.data_format]. | |
2875 | pixelformat; | |
2876 | } | |
2877 | ||
2878 | /* data format must be set before clipping/scaling */ | |
2879 | vino_set_scaling(&tempvcs, pf->width, pf->height); | |
2880 | ||
2881 | dprintk("data format = %s\n", | |
2882 | vino_data_formats[tempvcs.data_format].description); | |
2883 | ||
2884 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / | |
2885 | tempvcs.decimation; | |
2886 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
2887 | tempvcs.decimation; | |
2888 | ||
2889 | pf->field = V4L2_FIELD_INTERLACED; | |
2890 | pf->bytesperline = tempvcs.line_size; | |
2891 | pf->sizeimage = tempvcs.line_size * | |
2892 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
2893 | tempvcs.decimation; | |
2894 | pf->colorspace = | |
2895 | vino_data_formats[tempvcs.data_format].colorspace; | |
2896 | ||
2897 | pf->priv = 0; | |
2898 | break; | |
2899 | } | |
2900 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
2901 | default: | |
2902 | return -EINVAL; | |
2903 | } | |
2904 | ||
2905 | return 0; | |
2906 | } | |
2907 | ||
2908 | static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs, | |
2909 | struct v4l2_format *f) | |
2910 | { | |
2911 | switch (f->type) { | |
2912 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
2913 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
2914 | spin_lock(&vino_drvdata->input_lock); | |
2915 | ||
2916 | pf->width = (vcs->clipping.right - vcs->clipping.left) / | |
2917 | vcs->decimation; | |
2918 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / | |
2919 | vcs->decimation; | |
2920 | pf->pixelformat = | |
2921 | vino_data_formats[vcs->data_format].pixelformat; | |
2922 | ||
2923 | pf->field = V4L2_FIELD_INTERLACED; | |
2924 | pf->bytesperline = vcs->line_size; | |
2925 | pf->sizeimage = vcs->line_size * | |
2926 | (vcs->clipping.bottom - vcs->clipping.top) / | |
2927 | vcs->decimation; | |
2928 | pf->colorspace = | |
2929 | vino_data_formats[vcs->data_format].colorspace; | |
2930 | ||
2931 | pf->priv = 0; | |
2932 | ||
2933 | spin_unlock(&vino_drvdata->input_lock); | |
2934 | break; | |
2935 | } | |
2936 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
2937 | default: | |
2938 | return -EINVAL; | |
2939 | } | |
2940 | ||
2941 | return 0; | |
2942 | } | |
2943 | ||
2944 | static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs, | |
2945 | struct v4l2_format *f) | |
2946 | { | |
2947 | int data_format; | |
2948 | ||
2949 | switch (f->type) { | |
2950 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
2951 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
2952 | spin_lock(&vino_drvdata->input_lock); | |
2953 | ||
2954 | if (!vino_is_input_owner(vcs)) { | |
2955 | spin_unlock(&vino_drvdata->input_lock); | |
2956 | return -EINVAL; | |
2957 | } | |
2958 | ||
2959 | data_format = vino_find_data_format(pf->pixelformat); | |
2960 | if (data_format == VINO_DATA_FMT_NONE) { | |
2961 | vcs->data_format = VINO_DATA_FMT_RGB32; | |
2962 | pf->pixelformat = | |
2963 | vino_data_formats[vcs->data_format]. | |
2964 | pixelformat; | |
2965 | } else { | |
2966 | vcs->data_format = data_format; | |
2967 | } | |
2968 | ||
2969 | /* data format must be set before clipping/scaling */ | |
2970 | vino_set_scaling(vcs, pf->width, pf->height); | |
2971 | ||
2972 | dprintk("data format = %s\n", | |
2973 | vino_data_formats[vcs->data_format].description); | |
2974 | ||
2975 | pf->width = vcs->clipping.right - vcs->clipping.left; | |
2976 | pf->height = vcs->clipping.bottom - vcs->clipping.top; | |
2977 | ||
2978 | pf->field = V4L2_FIELD_INTERLACED; | |
2979 | pf->bytesperline = vcs->line_size; | |
2980 | pf->sizeimage = vcs->line_size * | |
2981 | (vcs->clipping.bottom - vcs->clipping.top) / | |
2982 | vcs->decimation; | |
2983 | pf->colorspace = | |
2984 | vino_data_formats[vcs->data_format].colorspace; | |
2985 | ||
2986 | pf->priv = 0; | |
2987 | ||
2988 | spin_unlock(&vino_drvdata->input_lock); | |
2989 | break; | |
2990 | } | |
2991 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
2992 | default: | |
2993 | return -EINVAL; | |
2994 | } | |
2995 | ||
2996 | return 0; | |
2997 | } | |
2998 | ||
2999 | static int vino_v4l2_cropcap(struct vino_channel_settings *vcs, | |
3000 | struct v4l2_cropcap *ccap) | |
3001 | { | |
3002 | const struct vino_data_norm *norm; | |
3003 | ||
3004 | switch (ccap->type) { | |
3005 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3006 | spin_lock(&vino_drvdata->input_lock); | |
3007 | norm = &vino_data_norms[vcs->data_norm]; | |
3008 | spin_unlock(&vino_drvdata->input_lock); | |
3009 | ||
3010 | ccap->bounds.left = 0; | |
3011 | ccap->bounds.top = 0; | |
3012 | ccap->bounds.width = norm->width; | |
3013 | ccap->bounds.height = norm->height; | |
3014 | memcpy(&ccap->defrect, &ccap->bounds, | |
3015 | sizeof(struct v4l2_rect)); | |
3016 | ||
3017 | ccap->pixelaspect.numerator = 1; | |
3018 | ccap->pixelaspect.denominator = 1; | |
3019 | break; | |
3020 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3021 | default: | |
3022 | return -EINVAL; | |
3023 | } | |
3024 | ||
3025 | return 0; | |
3026 | } | |
3027 | ||
3028 | static int vino_v4l2_g_crop(struct vino_channel_settings *vcs, | |
3029 | struct v4l2_crop *c) | |
3030 | { | |
3031 | switch (c->type) { | |
3032 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3033 | spin_lock(&vino_drvdata->input_lock); | |
3034 | ||
3035 | c->c.left = vcs->clipping.left; | |
3036 | c->c.top = vcs->clipping.top; | |
3037 | c->c.width = vcs->clipping.right - vcs->clipping.left; | |
3038 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; | |
3039 | ||
3040 | spin_unlock(&vino_drvdata->input_lock); | |
3041 | break; | |
3042 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3043 | default: | |
3044 | return -EINVAL; | |
3045 | } | |
3046 | ||
3047 | return 0; | |
3048 | } | |
3049 | ||
3050 | static int vino_v4l2_s_crop(struct vino_channel_settings *vcs, | |
3051 | struct v4l2_crop *c) | |
3052 | { | |
3053 | switch (c->type) { | |
3054 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3055 | spin_lock(&vino_drvdata->input_lock); | |
3056 | ||
3057 | if (!vino_is_input_owner(vcs)) { | |
3058 | spin_unlock(&vino_drvdata->input_lock); | |
3059 | return -EINVAL; | |
3060 | } | |
3061 | vino_set_clipping(vcs, c->c.left, c->c.top, | |
3062 | c->c.width, c->c.height); | |
3063 | ||
3064 | spin_unlock(&vino_drvdata->input_lock); | |
3065 | break; | |
3066 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3067 | default: | |
3068 | return -EINVAL; | |
3069 | } | |
3070 | ||
3071 | return 0; | |
3072 | } | |
3073 | ||
3074 | static int vino_v4l2_g_parm(struct vino_channel_settings *vcs, | |
3075 | struct v4l2_streamparm *sp) | |
3076 | { | |
3077 | switch (sp->type) { | |
3078 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3079 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3080 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
3081 | ||
3082 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
3083 | cp->timeperframe.numerator = 1; | |
3084 | ||
3085 | spin_lock(&vino_drvdata->input_lock); | |
3086 | cp->timeperframe.denominator = vcs->fps; | |
3087 | spin_unlock(&vino_drvdata->input_lock); | |
3088 | ||
3089 | // TODO: cp->readbuffers = xxx; | |
3090 | break; | |
3091 | } | |
3092 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3093 | default: | |
3094 | return -EINVAL; | |
3095 | } | |
3096 | ||
3097 | return 0; | |
3098 | } | |
3099 | ||
3100 | static int vino_v4l2_s_parm(struct vino_channel_settings *vcs, | |
3101 | struct v4l2_streamparm *sp) | |
3102 | { | |
3103 | switch (sp->type) { | |
3104 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3105 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3106 | ||
3107 | spin_lock(&vino_drvdata->input_lock); | |
3108 | if (!vino_is_input_owner(vcs)) { | |
3109 | spin_unlock(&vino_drvdata->input_lock); | |
3110 | return -EINVAL; | |
3111 | } | |
3112 | ||
3113 | if ((cp->timeperframe.numerator == 0) || | |
3114 | (cp->timeperframe.denominator == 0)) { | |
3115 | /* reset framerate */ | |
3116 | vino_set_default_framerate(vcs); | |
3117 | } else { | |
3118 | vino_set_framerate(vcs, cp->timeperframe.denominator / | |
3119 | cp->timeperframe.numerator); | |
3120 | } | |
3121 | spin_unlock(&vino_drvdata->input_lock); | |
3122 | ||
3123 | // TODO: set buffers according to cp->readbuffers | |
3124 | break; | |
3125 | } | |
3126 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3127 | default: | |
3128 | return -EINVAL; | |
3129 | } | |
3130 | ||
3131 | return 0; | |
3132 | } | |
3133 | ||
3134 | static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs, | |
3135 | struct v4l2_requestbuffers *rb) | |
3136 | { | |
3137 | if (vcs->reading) | |
3138 | return -EBUSY; | |
3139 | ||
3140 | switch (rb->type) { | |
3141 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3142 | // TODO: check queue type | |
3143 | if (rb->memory != V4L2_MEMORY_MMAP) { | |
3144 | dprintk("type not mmap\n"); | |
3145 | return -EINVAL; | |
3146 | } | |
3147 | ||
3148 | if (vino_is_capturing(vcs)) { | |
3149 | dprintk("busy, capturing\n"); | |
3150 | return -EBUSY; | |
3151 | } | |
3152 | ||
3153 | dprintk("count = %d\n", rb->count); | |
3154 | if (rb->count > 0) { | |
3155 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { | |
3156 | dprintk("busy, buffers still mapped\n"); | |
3157 | return -EBUSY; | |
3158 | } else { | |
3159 | vino_queue_free(&vcs->fb_queue); | |
3160 | vino_queue_init(&vcs->fb_queue, &rb->count); | |
3161 | } | |
3162 | } else { | |
3163 | vino_capture_stop(vcs); | |
3164 | vino_queue_free(&vcs->fb_queue); | |
3165 | } | |
3166 | break; | |
3167 | } | |
3168 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3169 | default: | |
3170 | return -EINVAL; | |
3171 | } | |
3172 | ||
3173 | return 0; | |
3174 | } | |
3175 | ||
3176 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, | |
3177 | struct vino_framebuffer *fb, | |
3178 | struct v4l2_buffer *b) | |
3179 | { | |
3180 | if (vino_queue_outgoing_contains(&vcs->fb_queue, | |
3181 | fb->id)) { | |
3182 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; | |
3183 | b->flags |= V4L2_BUF_FLAG_DONE; | |
3184 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, | |
3185 | fb->id)) { | |
3186 | b->flags &= ~V4L2_BUF_FLAG_DONE; | |
3187 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
3188 | } else { | |
3189 | b->flags &= ~(V4L2_BUF_FLAG_DONE | | |
3190 | V4L2_BUF_FLAG_QUEUED); | |
3191 | } | |
3192 | ||
3193 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); | |
3194 | ||
3195 | if (fb->map_count > 0) | |
3196 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
3197 | ||
3198 | b->index = fb->id; | |
3199 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? | |
3200 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; | |
3201 | b->m.offset = fb->offset; | |
3202 | b->bytesused = fb->data_size; | |
3203 | b->length = fb->size; | |
3204 | b->field = V4L2_FIELD_INTERLACED; | |
3205 | b->sequence = fb->frame_counter; | |
3206 | memcpy(&b->timestamp, &fb->timestamp, | |
3207 | sizeof(struct timeval)); | |
3208 | // b->input ? | |
3209 | ||
3210 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", | |
3211 | fb->id, fb->size, fb->data_size, fb->offset); | |
3212 | } | |
3213 | ||
3214 | static int vino_v4l2_querybuf(struct vino_channel_settings *vcs, | |
3215 | struct v4l2_buffer *b) | |
3216 | { | |
3217 | if (vcs->reading) | |
3218 | return -EBUSY; | |
3219 | ||
3220 | switch (b->type) { | |
3221 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3222 | struct vino_framebuffer *fb; | |
3223 | ||
3224 | // TODO: check queue type | |
3225 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { | |
3226 | dprintk("invalid index = %d\n", | |
3227 | b->index); | |
3228 | return -EINVAL; | |
3229 | } | |
3230 | ||
3231 | fb = vino_queue_get_buffer(&vcs->fb_queue, | |
3232 | b->index); | |
3233 | if (fb == NULL) { | |
3234 | dprintk("vino_queue_get_buffer() failed"); | |
3235 | return -EINVAL; | |
3236 | } | |
3237 | ||
3238 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3239 | break; | |
3240 | } | |
3241 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3242 | default: | |
3243 | return -EINVAL; | |
3244 | } | |
3245 | ||
3246 | return 0; | |
3247 | } | |
3248 | ||
3249 | static int vino_v4l2_qbuf(struct vino_channel_settings *vcs, | |
3250 | struct v4l2_buffer *b) | |
3251 | { | |
3252 | if (vcs->reading) | |
3253 | return -EBUSY; | |
3254 | ||
3255 | switch (b->type) { | |
3256 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3257 | struct vino_framebuffer *fb; | |
3258 | int ret; | |
3259 | ||
3260 | // TODO: check queue type | |
3261 | if (b->memory != V4L2_MEMORY_MMAP) { | |
3262 | dprintk("type not mmap\n"); | |
3263 | return -EINVAL; | |
3264 | } | |
3265 | ||
3266 | fb = vino_capture_enqueue(vcs, b->index); | |
3267 | if (fb == NULL) | |
3268 | return -EINVAL; | |
3269 | ||
3270 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3271 | ||
3272 | if (vcs->streaming) { | |
3273 | ret = vino_capture_next(vcs, 1); | |
3274 | if (ret) | |
3275 | return ret; | |
3276 | } | |
3277 | break; | |
3278 | } | |
3279 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3280 | default: | |
3281 | return -EINVAL; | |
3282 | } | |
3283 | ||
3284 | return 0; | |
3285 | } | |
3286 | ||
3287 | static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs, | |
3288 | struct v4l2_buffer *b, | |
3289 | unsigned int nonblocking) | |
3290 | { | |
3291 | if (vcs->reading) | |
3292 | return -EBUSY; | |
3293 | ||
3294 | switch (b->type) { | |
3295 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3296 | struct vino_framebuffer *fb; | |
3297 | unsigned int incoming, outgoing; | |
3298 | int err; | |
3299 | ||
3300 | // TODO: check queue type | |
3301 | ||
3302 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3303 | if (err) { | |
3304 | dprintk("vino_queue_get_incoming() failed\n"); | |
3305 | return -EIO; | |
3306 | } | |
3307 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); | |
3308 | if (err) { | |
3309 | dprintk("vino_queue_get_outgoing() failed\n"); | |
3310 | return -EIO; | |
3311 | } | |
3312 | ||
3313 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); | |
3314 | ||
3315 | if (outgoing == 0) { | |
3316 | if (incoming == 0) { | |
3317 | dprintk("no incoming or outgoing buffers\n"); | |
3318 | return -EINVAL; | |
3319 | } | |
3320 | if (nonblocking) { | |
3321 | dprintk("non-blocking I/O was selected and " | |
3322 | "there are no buffers to dequeue\n"); | |
3323 | return -EAGAIN; | |
3324 | } | |
3325 | ||
3326 | err = vino_wait_for_frame(vcs); | |
3327 | if (err) { | |
3328 | err = vino_wait_for_frame(vcs); | |
3329 | if (err) { | |
3330 | /* interrupted */ | |
3331 | vino_capture_failed(vcs); | |
3332 | return -EIO; | |
3333 | } | |
3334 | } | |
3335 | } | |
3336 | ||
3337 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); | |
3338 | if (fb == NULL) { | |
3339 | dprintk("vino_queue_remove() failed\n"); | |
3340 | return -EINVAL; | |
3341 | } | |
3342 | ||
3343 | err = vino_check_buffer(vcs, fb); | |
3344 | if (err) | |
3345 | return -EIO; | |
3346 | ||
3347 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3348 | break; | |
3349 | } | |
3350 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3351 | default: | |
3352 | return -EINVAL; | |
3353 | } | |
3354 | ||
3355 | return 0; | |
3356 | } | |
3357 | ||
3358 | static int vino_v4l2_streamon(struct vino_channel_settings *vcs) | |
3359 | { | |
3360 | unsigned int incoming; | |
3361 | int ret; | |
3362 | if (vcs->reading) | |
3363 | return -EBUSY; | |
3364 | ||
3365 | if (vcs->streaming) | |
3366 | return 0; | |
3367 | ||
3368 | // TODO: check queue type | |
3369 | ||
3370 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { | |
3371 | dprintk("no buffers allocated\n"); | |
3372 | return -EINVAL; | |
3373 | } | |
3374 | ||
3375 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3376 | if (ret) { | |
3377 | dprintk("vino_queue_get_incoming() failed\n"); | |
3378 | return -EINVAL; | |
3379 | } | |
3380 | ||
3381 | vcs->streaming = 1; | |
3382 | ||
3383 | if (incoming > 0) { | |
3384 | ret = vino_capture_next(vcs, 1); | |
3385 | if (ret) { | |
3386 | vcs->streaming = 0; | |
3387 | ||
3388 | dprintk("couldn't start capture\n"); | |
3389 | return -EINVAL; | |
3390 | } | |
3391 | } | |
3392 | ||
3393 | return 0; | |
3394 | } | |
3395 | ||
3396 | static int vino_v4l2_streamoff(struct vino_channel_settings *vcs) | |
3397 | { | |
3398 | if (vcs->reading) | |
3399 | return -EBUSY; | |
3400 | ||
3401 | if (!vcs->streaming) | |
3402 | return 0; | |
3403 | ||
3404 | vino_capture_stop(vcs); | |
3405 | vcs->streaming = 0; | |
3406 | ||
3407 | return 0; | |
3408 | } | |
3409 | ||
3410 | static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs, | |
3411 | struct v4l2_queryctrl *queryctrl) | |
3412 | { | |
3413 | int i; | |
3414 | int err = 0; | |
3415 | ||
3416 | spin_lock(&vino_drvdata->input_lock); | |
3417 | ||
3418 | switch (vcs->input) { | |
3419 | case VINO_INPUT_D1: | |
3420 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3421 | if (vino_indycam_v4l2_controls[i].id == | |
3422 | queryctrl->id) { | |
3423 | memcpy(queryctrl, | |
3424 | &vino_indycam_v4l2_controls[i], | |
3425 | sizeof(struct v4l2_queryctrl)); | |
3426 | goto found; | |
3427 | } | |
3428 | } | |
3429 | ||
3430 | err = -EINVAL; | |
3431 | break; | |
3432 | case VINO_INPUT_COMPOSITE: | |
3433 | case VINO_INPUT_SVIDEO: | |
3434 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3435 | if (vino_saa7191_v4l2_controls[i].id == | |
3436 | queryctrl->id) { | |
3437 | memcpy(queryctrl, | |
3438 | &vino_saa7191_v4l2_controls[i], | |
3439 | sizeof(struct v4l2_queryctrl)); | |
3440 | goto found; | |
3441 | } | |
3442 | } | |
3443 | ||
3444 | err = -EINVAL; | |
3445 | break; | |
3446 | default: | |
3447 | err = -EINVAL; | |
3448 | } | |
3449 | ||
3450 | found: | |
3451 | spin_unlock(&vino_drvdata->input_lock); | |
3452 | ||
3453 | return err; | |
3454 | } | |
3455 | ||
3456 | static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs, | |
3457 | struct v4l2_control *control) | |
3458 | { | |
3459 | struct indycam_control indycam_ctrl; | |
3460 | struct saa7191_control saa7191_ctrl; | |
3461 | int err = 0; | |
3462 | ||
3463 | spin_lock(&vino_drvdata->input_lock); | |
3464 | ||
3465 | switch (vcs->input) { | |
3466 | case VINO_INPUT_D1: | |
3467 | i2c_camera_command(DECODER_INDYCAM_GET_CONTROLS, | |
3468 | &indycam_ctrl); | |
3469 | ||
3470 | switch(control->id) { | |
3471 | case V4L2_CID_AUTOGAIN: | |
3472 | control->value = indycam_ctrl.agc; | |
3473 | break; | |
3474 | case V4L2_CID_AUTO_WHITE_BALANCE: | |
3475 | control->value = indycam_ctrl.awb; | |
3476 | break; | |
3477 | case V4L2_CID_GAIN: | |
3478 | control->value = indycam_ctrl.gain; | |
3479 | break; | |
3480 | case V4L2_CID_PRIVATE_BASE: | |
3481 | control->value = indycam_ctrl.red_saturation; | |
3482 | break; | |
3483 | case V4L2_CID_PRIVATE_BASE + 1: | |
3484 | control->value = indycam_ctrl.blue_saturation; | |
3485 | break; | |
3486 | case V4L2_CID_RED_BALANCE: | |
3487 | control->value = indycam_ctrl.red_balance; | |
3488 | break; | |
3489 | case V4L2_CID_BLUE_BALANCE: | |
3490 | control->value = indycam_ctrl.blue_balance; | |
3491 | break; | |
3492 | case V4L2_CID_EXPOSURE: | |
3493 | control->value = indycam_ctrl.shutter; | |
3494 | break; | |
3495 | case V4L2_CID_GAMMA: | |
3496 | control->value = indycam_ctrl.gamma; | |
3497 | break; | |
3498 | default: | |
3499 | err = -EINVAL; | |
3500 | } | |
3501 | break; | |
3502 | case VINO_INPUT_COMPOSITE: | |
3503 | case VINO_INPUT_SVIDEO: | |
3504 | i2c_decoder_command(DECODER_SAA7191_GET_CONTROLS, | |
3505 | &saa7191_ctrl); | |
3506 | ||
3507 | switch(control->id) { | |
3508 | case V4L2_CID_HUE: | |
3509 | control->value = saa7191_ctrl.hue; | |
3510 | break; | |
3511 | case V4L2_CID_PRIVATE_BASE: | |
3512 | control->value = saa7191_ctrl.vtrc; | |
3513 | break; | |
3514 | default: | |
3515 | err = -EINVAL; | |
3516 | } | |
3517 | break; | |
3518 | default: | |
3519 | err = -EINVAL; | |
3520 | } | |
3521 | ||
3522 | spin_unlock(&vino_drvdata->input_lock); | |
3523 | ||
3524 | return err; | |
3525 | } | |
3526 | ||
3527 | static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs, | |
3528 | struct v4l2_control *control) | |
3529 | { | |
3530 | struct indycam_control indycam_ctrl; | |
3531 | struct saa7191_control saa7191_ctrl; | |
3532 | int i; | |
3533 | int err = 0; | |
3534 | ||
3535 | spin_lock(&vino_drvdata->input_lock); | |
3536 | ||
3537 | switch (vcs->input) { | |
3538 | case VINO_INPUT_D1: | |
3539 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3540 | if (vino_indycam_v4l2_controls[i].id == | |
3541 | control->id) { | |
3542 | if ((control->value >= | |
3543 | vino_indycam_v4l2_controls[i].minimum) | |
3544 | && (control->value <= | |
3545 | vino_indycam_v4l2_controls[i]. | |
3546 | maximum)) { | |
3547 | goto ok1; | |
3548 | } else { | |
3549 | err = -ERANGE; | |
3550 | goto error; | |
3551 | } | |
3552 | } | |
3553 | } | |
3554 | err = -EINVAL; | |
3555 | goto error; | |
3556 | ||
3557 | ok1: | |
3558 | indycam_ctrl.agc = INDYCAM_VALUE_UNCHANGED; | |
3559 | indycam_ctrl.awb = INDYCAM_VALUE_UNCHANGED; | |
3560 | indycam_ctrl.shutter = INDYCAM_VALUE_UNCHANGED; | |
3561 | indycam_ctrl.gain = INDYCAM_VALUE_UNCHANGED; | |
3562 | indycam_ctrl.red_balance = INDYCAM_VALUE_UNCHANGED; | |
3563 | indycam_ctrl.blue_balance = INDYCAM_VALUE_UNCHANGED; | |
3564 | indycam_ctrl.red_saturation = INDYCAM_VALUE_UNCHANGED; | |
3565 | indycam_ctrl.blue_saturation = INDYCAM_VALUE_UNCHANGED; | |
3566 | indycam_ctrl.gamma = INDYCAM_VALUE_UNCHANGED; | |
3567 | ||
3568 | switch(control->id) { | |
3569 | case V4L2_CID_AUTOGAIN: | |
3570 | indycam_ctrl.agc = control->value; | |
3571 | break; | |
3572 | case V4L2_CID_AUTO_WHITE_BALANCE: | |
3573 | indycam_ctrl.awb = control->value; | |
3574 | break; | |
3575 | case V4L2_CID_GAIN: | |
3576 | indycam_ctrl.gain = control->value; | |
3577 | break; | |
3578 | case V4L2_CID_PRIVATE_BASE: | |
3579 | indycam_ctrl.red_saturation = control->value; | |
3580 | break; | |
3581 | case V4L2_CID_PRIVATE_BASE + 1: | |
3582 | indycam_ctrl.blue_saturation = control->value; | |
3583 | break; | |
3584 | case V4L2_CID_RED_BALANCE: | |
3585 | indycam_ctrl.red_balance = control->value; | |
3586 | break; | |
3587 | case V4L2_CID_BLUE_BALANCE: | |
3588 | indycam_ctrl.blue_balance = control->value; | |
3589 | break; | |
3590 | case V4L2_CID_EXPOSURE: | |
3591 | indycam_ctrl.shutter = control->value; | |
3592 | break; | |
3593 | case V4L2_CID_GAMMA: | |
3594 | indycam_ctrl.gamma = control->value; | |
3595 | break; | |
3596 | default: | |
3597 | err = -EINVAL; | |
3598 | } | |
3599 | ||
3600 | if (!err) | |
3601 | i2c_camera_command(DECODER_INDYCAM_SET_CONTROLS, | |
3602 | &indycam_ctrl); | |
3603 | break; | |
3604 | case VINO_INPUT_COMPOSITE: | |
3605 | case VINO_INPUT_SVIDEO: | |
3606 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3607 | if (vino_saa7191_v4l2_controls[i].id == | |
3608 | control->id) { | |
3609 | if ((control->value >= | |
3610 | vino_saa7191_v4l2_controls[i].minimum) | |
3611 | && (control->value <= | |
3612 | vino_saa7191_v4l2_controls[i]. | |
3613 | maximum)) { | |
3614 | goto ok2; | |
3615 | } else { | |
3616 | err = -ERANGE; | |
3617 | goto error; | |
3618 | } | |
3619 | } | |
3620 | } | |
3621 | err = -EINVAL; | |
3622 | goto error; | |
3623 | ||
3624 | ok2: | |
3625 | saa7191_ctrl.hue = SAA7191_VALUE_UNCHANGED; | |
3626 | saa7191_ctrl.vtrc = SAA7191_VALUE_UNCHANGED; | |
3627 | ||
3628 | switch(control->id) { | |
3629 | case V4L2_CID_HUE: | |
3630 | saa7191_ctrl.hue = control->value; | |
3631 | break; | |
3632 | case V4L2_CID_PRIVATE_BASE: | |
3633 | saa7191_ctrl.vtrc = control->value; | |
3634 | break; | |
3635 | default: | |
3636 | err = -EINVAL; | |
3637 | } | |
3638 | ||
3639 | if (!err) | |
3640 | i2c_decoder_command(DECODER_SAA7191_SET_CONTROLS, | |
3641 | &saa7191_ctrl); | |
3642 | break; | |
3643 | default: | |
3644 | err = -EINVAL; | |
3645 | } | |
3646 | ||
3647 | error: | |
3648 | spin_unlock(&vino_drvdata->input_lock); | |
3649 | ||
3650 | return err; | |
3651 | } | |
3652 | ||
3653 | /* File operations */ | |
3654 | ||
3655 | static int vino_open(struct inode *inode, struct file *file) | |
3656 | { | |
3657 | struct video_device *dev = video_devdata(file); | |
3658 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3659 | int ret = 0; | |
3660 | dprintk("open(): channel = %c\n", | |
3661 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); | |
3662 | ||
3663 | down(&vcs->sem); | |
3664 | ||
3665 | if (vcs->users) { | |
3666 | dprintk("open(): driver busy\n"); | |
3667 | ret = -EBUSY; | |
3668 | goto out; | |
3669 | } | |
3670 | ||
3671 | ret = vino_acquire_input(vcs); | |
3672 | if (ret) { | |
3673 | dprintk("open(): vino_acquire_input() failed\n"); | |
3674 | goto out; | |
3675 | } | |
3676 | ||
3677 | vcs->users++; | |
3678 | ||
3679 | out: | |
3680 | up(&vcs->sem); | |
3681 | ||
3682 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); | |
3683 | ||
3684 | return ret; | |
3685 | } | |
3686 | ||
3687 | static int vino_close(struct inode *inode, struct file *file) | |
3688 | { | |
3689 | struct video_device *dev = video_devdata(file); | |
3690 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3691 | dprintk("close():\n"); | |
3692 | ||
3693 | down(&vcs->sem); | |
3694 | ||
3695 | vcs->users--; | |
3696 | ||
3697 | if (!vcs->users) { | |
3698 | vino_release_input(vcs); | |
3699 | ||
3700 | /* stop DMA and free buffers */ | |
3701 | vino_capture_stop(vcs); | |
3702 | vino_queue_free(&vcs->fb_queue); | |
3703 | } | |
3704 | ||
3705 | up(&vcs->sem); | |
3706 | ||
3707 | return 0; | |
3708 | } | |
3709 | ||
3710 | static void vino_vm_open(struct vm_area_struct *vma) | |
3711 | { | |
3712 | struct vino_framebuffer *fb = vma->vm_private_data; | |
3713 | ||
3714 | fb->map_count++; | |
3715 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); | |
3716 | } | |
3717 | ||
3718 | static void vino_vm_close(struct vm_area_struct *vma) | |
3719 | { | |
3720 | struct vino_framebuffer *fb = vma->vm_private_data; | |
3721 | ||
3722 | fb->map_count--; | |
3723 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); | |
3724 | } | |
3725 | ||
3726 | static struct vm_operations_struct vino_vm_ops = { | |
3727 | .open = vino_vm_open, | |
3728 | .close = vino_vm_close, | |
3729 | }; | |
3730 | ||
3731 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) | |
3732 | { | |
3733 | struct video_device *dev = video_devdata(file); | |
3734 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3735 | ||
3736 | unsigned long start = vma->vm_start; | |
3737 | unsigned long size = vma->vm_end - vma->vm_start; | |
3738 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; | |
3739 | ||
3740 | struct vino_framebuffer *fb = NULL; | |
3741 | unsigned int i, length; | |
3742 | int ret = 0; | |
3743 | ||
3744 | dprintk("mmap():\n"); | |
3745 | ||
3746 | // TODO: reject mmap if already mapped | |
3747 | ||
3748 | if (down_interruptible(&vcs->sem)) | |
3749 | return -EINTR; | |
3750 | ||
3751 | if (vcs->reading) { | |
3752 | ret = -EBUSY; | |
3753 | goto out; | |
3754 | } | |
3755 | ||
3756 | // TODO: check queue type | |
3757 | ||
3758 | if (!(vma->vm_flags & VM_WRITE)) { | |
3759 | dprintk("mmap(): app bug: PROT_WRITE please\n"); | |
3760 | ret = -EINVAL; | |
3761 | goto out; | |
3762 | } | |
3763 | if (!(vma->vm_flags & VM_SHARED)) { | |
3764 | dprintk("mmap(): app bug: MAP_SHARED please\n"); | |
3765 | ret = -EINVAL; | |
3766 | goto out; | |
3767 | } | |
3768 | ||
3769 | /* find the correct buffer using offset */ | |
3770 | length = vino_queue_get_length(&vcs->fb_queue); | |
3771 | if (length == 0) { | |
3772 | dprintk("mmap(): queue not initialized\n"); | |
3773 | ret = -EINVAL; | |
3774 | goto out; | |
3775 | } | |
3776 | ||
3777 | for (i = 0; i < length; i++) { | |
3778 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); | |
3779 | if (fb == NULL) { | |
3780 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); | |
3781 | ret = -EINVAL; | |
3782 | goto out; | |
3783 | } | |
3784 | ||
3785 | if (fb->offset == offset) | |
3786 | goto found; | |
3787 | } | |
3788 | ||
3789 | dprintk("mmap(): invalid offset = %lu\n", offset); | |
3790 | ret = -EINVAL; | |
3791 | goto out; | |
3792 | ||
3793 | found: | |
3794 | dprintk("mmap(): buffer = %d\n", i); | |
3795 | ||
3796 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { | |
3797 | dprintk("mmap(): failed: size = %lu > %lu\n", | |
3798 | size, fb->desc_table.page_count * PAGE_SIZE); | |
3799 | ret = -EINVAL; | |
3800 | goto out; | |
3801 | } | |
3802 | ||
3803 | for (i = 0; i < fb->desc_table.page_count; i++) { | |
3804 | unsigned long pfn = | |
3805 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> | |
3806 | PAGE_SHIFT; | |
3807 | ||
3808 | if (size < PAGE_SIZE) | |
3809 | break; | |
3810 | ||
3811 | // protection was: PAGE_READONLY | |
3812 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, | |
3813 | vma->vm_page_prot)) { | |
3814 | dprintk("mmap(): remap_pfn_range() failed\n"); | |
3815 | ret = -EAGAIN; | |
3816 | goto out; | |
3817 | } | |
3818 | ||
3819 | start += PAGE_SIZE; | |
3820 | size -= PAGE_SIZE; | |
3821 | } | |
3822 | ||
3823 | fb->map_count = 1; | |
3824 | ||
3825 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; | |
3826 | vma->vm_flags &= ~VM_IO; | |
3827 | vma->vm_private_data = fb; | |
3828 | vma->vm_file = file; | |
3829 | vma->vm_ops = &vino_vm_ops; | |
3830 | ||
3831 | out: | |
3832 | up(&vcs->sem); | |
3833 | ||
3834 | return ret; | |
3835 | } | |
3836 | ||
3837 | static unsigned int vino_poll(struct file *file, poll_table *pt) | |
3838 | { | |
3839 | struct video_device *dev = video_devdata(file); | |
3840 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3841 | unsigned int outgoing; | |
3842 | unsigned int ret = 0; | |
3843 | ||
3844 | // lock mutex (?) | |
3845 | // TODO: this has to be corrected for different read modes | |
3846 | ||
3847 | dprintk("poll():\n"); | |
3848 | ||
3849 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
3850 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
3851 | ret = POLLERR; | |
3852 | goto error; | |
3853 | } | |
3854 | if (outgoing > 0) | |
3855 | goto over; | |
3856 | ||
3857 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); | |
3858 | ||
3859 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
3860 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
3861 | ret = POLLERR; | |
3862 | goto error; | |
3863 | } | |
3864 | ||
3865 | over: | |
3866 | dprintk("poll(): data %savailable\n", | |
3867 | (outgoing > 0) ? "" : "not "); | |
3868 | if (outgoing > 0) { | |
3869 | ret = POLLIN | POLLRDNORM; | |
3870 | } | |
3871 | ||
3872 | error: | |
3873 | ||
3874 | return ret; | |
3875 | } | |
3876 | ||
3877 | static int vino_do_ioctl(struct inode *inode, struct file *file, | |
3878 | unsigned int cmd, void *arg) | |
3879 | { | |
3880 | struct video_device *dev = video_devdata(file); | |
3881 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3882 | ||
3883 | switch (_IOC_TYPE(cmd)) { | |
3884 | case 'v': | |
3885 | dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd); | |
3886 | break; | |
3887 | case 'V': | |
3888 | dprintk("ioctl(): V4L2 %s (0x%08x)\n", | |
3889 | v4l2_ioctl_names[_IOC_NR(cmd)], cmd); | |
3890 | break; | |
3891 | default: | |
3892 | dprintk("ioctl(): unsupported command 0x%08x\n", cmd); | |
3893 | } | |
3894 | ||
3895 | switch (cmd) { | |
3896 | /* TODO: V4L1 interface (use compatibility layer?) */ | |
3897 | /* V4L2 interface */ | |
3898 | case VIDIOC_QUERYCAP: { | |
3899 | vino_v4l2_querycap(arg); | |
3900 | break; | |
3901 | } | |
3902 | case VIDIOC_ENUMINPUT: { | |
3903 | return vino_v4l2_enuminput(vcs, arg); | |
3904 | } | |
3905 | case VIDIOC_G_INPUT: { | |
3906 | return vino_v4l2_g_input(vcs, arg); | |
3907 | } | |
3908 | case VIDIOC_S_INPUT: { | |
3909 | return vino_v4l2_s_input(vcs, arg); | |
3910 | } | |
3911 | case VIDIOC_ENUMSTD: { | |
3912 | return vino_v4l2_enumstd(vcs, arg); | |
3913 | } | |
3914 | case VIDIOC_G_STD: { | |
3915 | return vino_v4l2_g_std(vcs, arg); | |
3916 | } | |
3917 | case VIDIOC_S_STD: { | |
3918 | return vino_v4l2_s_std(vcs, arg); | |
3919 | } | |
3920 | case VIDIOC_ENUM_FMT: { | |
3921 | return vino_v4l2_enum_fmt(vcs, arg); | |
3922 | } | |
3923 | case VIDIOC_TRY_FMT: { | |
3924 | return vino_v4l2_try_fmt(vcs, arg); | |
3925 | } | |
3926 | case VIDIOC_G_FMT: { | |
3927 | return vino_v4l2_g_fmt(vcs, arg); | |
3928 | } | |
3929 | case VIDIOC_S_FMT: { | |
3930 | return vino_v4l2_s_fmt(vcs, arg); | |
3931 | } | |
3932 | case VIDIOC_CROPCAP: { | |
3933 | return vino_v4l2_cropcap(vcs, arg); | |
3934 | } | |
3935 | case VIDIOC_G_CROP: { | |
3936 | return vino_v4l2_g_crop(vcs, arg); | |
3937 | } | |
3938 | case VIDIOC_S_CROP: { | |
3939 | return vino_v4l2_s_crop(vcs, arg); | |
3940 | } | |
3941 | case VIDIOC_G_PARM: { | |
3942 | return vino_v4l2_g_parm(vcs, arg); | |
3943 | } | |
3944 | case VIDIOC_S_PARM: { | |
3945 | return vino_v4l2_s_parm(vcs, arg); | |
3946 | } | |
3947 | case VIDIOC_REQBUFS: { | |
3948 | return vino_v4l2_reqbufs(vcs, arg); | |
3949 | } | |
3950 | case VIDIOC_QUERYBUF: { | |
3951 | return vino_v4l2_querybuf(vcs, arg); | |
3952 | } | |
3953 | case VIDIOC_QBUF: { | |
3954 | return vino_v4l2_qbuf(vcs, arg); | |
3955 | } | |
3956 | case VIDIOC_DQBUF: { | |
3957 | return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK); | |
3958 | } | |
3959 | case VIDIOC_STREAMON: { | |
3960 | return vino_v4l2_streamon(vcs); | |
3961 | } | |
3962 | case VIDIOC_STREAMOFF: { | |
3963 | return vino_v4l2_streamoff(vcs); | |
3964 | } | |
3965 | case VIDIOC_QUERYCTRL: { | |
3966 | return vino_v4l2_queryctrl(vcs, arg); | |
3967 | } | |
3968 | case VIDIOC_G_CTRL: { | |
3969 | return vino_v4l2_g_ctrl(vcs, arg); | |
3970 | } | |
3971 | case VIDIOC_S_CTRL: { | |
3972 | return vino_v4l2_s_ctrl(vcs, arg); | |
3973 | } | |
3974 | default: | |
3975 | return -ENOIOCTLCMD; | |
3976 | } | |
3977 | ||
3978 | return 0; | |
3979 | } | |
3980 | ||
3981 | static int vino_ioctl(struct inode *inode, struct file *file, | |
3982 | unsigned int cmd, unsigned long arg) | |
3983 | { | |
3984 | struct video_device *dev = video_devdata(file); | |
3985 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
3986 | int ret; | |
3987 | ||
3988 | if (down_interruptible(&vcs->sem)) | |
3989 | return -EINTR; | |
3990 | ||
3991 | ret = video_usercopy(inode, file, cmd, arg, vino_do_ioctl); | |
3992 | ||
3993 | up(&vcs->sem); | |
3994 | ||
3995 | return ret; | |
3996 | } | |
3997 | ||
3998 | /* Initialization and cleanup */ | |
3999 | ||
4000 | // __initdata | |
4001 | static int vino_init_stage = 0; | |
4002 | ||
4003 | static struct file_operations vino_fops = { | |
4004 | .owner = THIS_MODULE, | |
4005 | .open = vino_open, | |
4006 | .release = vino_close, | |
4007 | .ioctl = vino_ioctl, | |
4008 | .mmap = vino_mmap, | |
4009 | .poll = vino_poll, | |
4010 | .llseek = no_llseek, | |
4011 | }; | |
4012 | ||
4013 | static struct video_device v4l_device_template = { | |
4014 | .name = "NOT SET", | |
4015 | //.type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE | | |
4016 | // VID_TYPE_CLIPPING | VID_TYPE_SCALES, VID_TYPE_OVERLAY | |
4017 | .hardware = VID_HARDWARE_VINO, | |
4018 | .fops = &vino_fops, | |
4019 | .minor = -1, | |
4020 | }; | |
4021 | ||
4022 | static void vino_module_cleanup(int stage) | |
4023 | { | |
4024 | switch(stage) { | |
4025 | case 10: | |
4026 | video_unregister_device(vino_drvdata->b.v4l_device); | |
4027 | vino_drvdata->b.v4l_device = NULL; | |
4028 | case 9: | |
4029 | video_unregister_device(vino_drvdata->a.v4l_device); | |
4030 | vino_drvdata->a.v4l_device = NULL; | |
4031 | case 8: | |
4032 | vino_i2c_del_bus(); | |
4033 | case 7: | |
4034 | free_irq(SGI_VINO_IRQ, NULL); | |
4035 | case 6: | |
4036 | if (vino_drvdata->b.v4l_device) { | |
4037 | video_device_release(vino_drvdata->b.v4l_device); | |
4038 | vino_drvdata->b.v4l_device = NULL; | |
4039 | } | |
4040 | case 5: | |
4041 | if (vino_drvdata->a.v4l_device) { | |
4042 | video_device_release(vino_drvdata->a.v4l_device); | |
4043 | vino_drvdata->a.v4l_device = NULL; | |
4044 | } | |
4045 | case 4: | |
4046 | /* all entries in dma_cpu dummy table have the same address */ | |
4047 | dma_unmap_single(NULL, | |
4048 | vino_drvdata->dummy_desc_table.dma_cpu[0], | |
4049 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4050 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT | |
4051 | * sizeof(dma_addr_t), | |
4052 | (void *)vino_drvdata-> | |
4053 | dummy_desc_table.dma_cpu, | |
4054 | vino_drvdata->dummy_desc_table.dma); | |
4055 | case 3: | |
4056 | free_page(vino_drvdata->dummy_page); | |
4057 | case 2: | |
4058 | kfree(vino_drvdata); | |
4059 | case 1: | |
4060 | iounmap(vino); | |
4061 | case 0: | |
4062 | break; | |
4063 | default: | |
4064 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", | |
4065 | stage); | |
4066 | } | |
4067 | } | |
4068 | ||
4069 | static int vino_probe(void) | |
4070 | { | |
4071 | unsigned long rev_id; | |
4072 | ||
4073 | if (ip22_is_fullhouse()) { | |
4074 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); | |
4075 | return -ENODEV; | |
4076 | } | |
4077 | ||
4078 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { | |
4079 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); | |
4080 | return -ENODEV; | |
4081 | } | |
4082 | ||
4083 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); | |
4084 | if (!vino) { | |
4085 | printk(KERN_ERR "VINO: ioremap() failed\n"); | |
4086 | return -EIO; | |
4087 | } | |
4088 | vino_init_stage++; | |
4089 | ||
4090 | if (get_dbe(rev_id, &(vino->rev_id))) { | |
4091 | printk(KERN_ERR "Failed to read VINO revision register\n"); | |
4092 | vino_module_cleanup(vino_init_stage); | |
4093 | return -ENODEV; | |
4094 | } | |
4095 | ||
4096 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { | |
4097 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", | |
4098 | rev_id); | |
4099 | vino_module_cleanup(vino_init_stage); | |
4100 | return -ENODEV; | |
4101 | } | |
4102 | ||
4103 | printk(KERN_INFO "VINO with chip ID %ld, revision %ld found\n", | |
4104 | VINO_ID_VALUE(rev_id), VINO_REV_NUM(rev_id)); | |
4105 | ||
4106 | return 0; | |
4107 | } | |
4108 | ||
4109 | static int vino_init(void) | |
4110 | { | |
4111 | dma_addr_t dma_dummy_address; | |
4112 | int i; | |
4113 | ||
4114 | vino_drvdata = (struct vino_settings *) | |
4115 | kmalloc(sizeof(struct vino_settings), GFP_KERNEL); | |
4116 | if (!vino_drvdata) { | |
4117 | vino_module_cleanup(vino_init_stage); | |
4118 | return -ENOMEM; | |
4119 | } | |
4120 | memset(vino_drvdata, 0, sizeof(struct vino_settings)); | |
4121 | vino_init_stage++; | |
4122 | ||
4123 | /* create a dummy dma descriptor */ | |
4124 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
4125 | if (!vino_drvdata->dummy_page) { | |
4126 | vino_module_cleanup(vino_init_stage); | |
4127 | return -ENOMEM; | |
4128 | } | |
4129 | vino_init_stage++; | |
4130 | ||
4131 | // TODO: use page_count in dummy_desc_table | |
4132 | ||
4133 | vino_drvdata->dummy_desc_table.dma_cpu = | |
4134 | dma_alloc_coherent(NULL, | |
4135 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), | |
4136 | &vino_drvdata->dummy_desc_table.dma, | |
4137 | GFP_KERNEL | GFP_DMA); | |
4138 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { | |
4139 | vino_module_cleanup(vino_init_stage); | |
4140 | return -ENOMEM; | |
4141 | } | |
4142 | vino_init_stage++; | |
4143 | ||
4144 | dma_dummy_address = dma_map_single(NULL, | |
4145 | (void *)vino_drvdata->dummy_page, | |
4146 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4147 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { | |
4148 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; | |
4149 | } | |
4150 | ||
4151 | /* initialize VINO */ | |
4152 | ||
4153 | vino->control = 0; | |
4154 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4155 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4156 | udelay(VINO_DESC_FETCH_DELAY); | |
4157 | ||
4158 | vino->intr_status = 0; | |
4159 | ||
4160 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4161 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4162 | ||
4163 | return 0; | |
4164 | } | |
4165 | ||
4166 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, | |
4167 | unsigned int channel, const char *name) | |
4168 | { | |
4169 | vcs->channel = channel; | |
4170 | vcs->input = VINO_INPUT_NONE; | |
4171 | vcs->alpha = 0; | |
4172 | vcs->users = 0; | |
4173 | vcs->data_format = VINO_DATA_FMT_GREY; | |
4174 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
4175 | vcs->decimation = 1; | |
4176 | vino_set_default_clipping(vcs); | |
4177 | vino_set_default_framerate(vcs); | |
4178 | ||
4179 | vcs->capturing = 0; | |
4180 | ||
4181 | init_MUTEX(&vcs->sem); | |
4182 | spin_lock_init(&vcs->capture_lock); | |
4183 | ||
4184 | init_MUTEX(&vcs->fb_queue.queue_sem); | |
4185 | spin_lock_init(&vcs->fb_queue.queue_lock); | |
4186 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); | |
4187 | ||
4188 | vcs->v4l_device = video_device_alloc(); | |
4189 | if (!vcs->v4l_device) { | |
4190 | vino_module_cleanup(vino_init_stage); | |
4191 | return -ENOMEM; | |
4192 | } | |
4193 | vino_init_stage++; | |
4194 | ||
4195 | memcpy(vcs->v4l_device, &v4l_device_template, | |
4196 | sizeof(struct video_device)); | |
4197 | strcpy(vcs->v4l_device->name, name); | |
4198 | vcs->v4l_device->release = video_device_release; | |
4199 | ||
4200 | video_set_drvdata(vcs->v4l_device, vcs); | |
4201 | ||
4202 | return 0; | |
4203 | } | |
4204 | ||
4205 | static int __init vino_module_init(void) | |
4206 | { | |
4207 | int ret; | |
4208 | ||
4209 | printk(KERN_INFO "SGI VINO driver version %s\n", | |
4210 | VINO_MODULE_VERSION); | |
4211 | ||
4212 | ret = vino_probe(); | |
4213 | if (ret) | |
4214 | return ret; | |
4215 | ||
4216 | ret = vino_init(); | |
4217 | if (ret) | |
4218 | return ret; | |
4219 | ||
4220 | /* initialize data structures */ | |
4221 | ||
4222 | spin_lock_init(&vino_drvdata->vino_lock); | |
4223 | spin_lock_init(&vino_drvdata->input_lock); | |
4224 | ||
4225 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, | |
4226 | vino_v4l_device_name_a); | |
4227 | if (ret) | |
4228 | return ret; | |
4229 | ||
4230 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, | |
4231 | vino_v4l_device_name_b); | |
4232 | if (ret) | |
4233 | return ret; | |
4234 | ||
4235 | /* initialize hardware and register V4L devices */ | |
4236 | ||
4237 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, | |
4238 | vino_driver_description, NULL); | |
4239 | if (ret) { | |
4240 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", | |
4241 | SGI_VINO_IRQ); | |
4242 | vino_module_cleanup(vino_init_stage); | |
4243 | return -EAGAIN; | |
4244 | } | |
4245 | vino_init_stage++; | |
4246 | ||
4247 | ret = vino_i2c_add_bus(); | |
4248 | if (ret) { | |
4249 | printk(KERN_ERR "VINO I2C bus registration failed\n"); | |
4250 | vino_module_cleanup(vino_init_stage); | |
4251 | return ret; | |
4252 | } | |
4253 | vino_init_stage++; | |
4254 | ||
4255 | ret = video_register_device(vino_drvdata->a.v4l_device, | |
4256 | VFL_TYPE_GRABBER, -1); | |
4257 | if (ret < 0) { | |
4258 | printk(KERN_ERR "VINO channel A Video4Linux-device " | |
4259 | "registration failed\n"); | |
4260 | vino_module_cleanup(vino_init_stage); | |
4261 | return -EINVAL; | |
4262 | } | |
4263 | vino_init_stage++; | |
4264 | ||
4265 | ret = video_register_device(vino_drvdata->b.v4l_device, | |
4266 | VFL_TYPE_GRABBER, -1); | |
4267 | if (ret < 0) { | |
4268 | printk(KERN_ERR "VINO channel B Video4Linux-device " | |
4269 | "registration failed\n"); | |
4270 | vino_module_cleanup(vino_init_stage); | |
4271 | return -EINVAL; | |
4272 | } | |
4273 | vino_init_stage++; | |
4274 | ||
4275 | #if defined(CONFIG_KMOD) && defined(MODULE) | |
4276 | request_module("saa7191"); | |
4277 | request_module("indycam"); | |
4278 | #endif | |
4279 | ||
4280 | dprintk("init complete!\n"); | |
4281 | ||
4282 | return 0; | |
4283 | } | |
4284 | ||
4285 | static void __exit vino_module_exit(void) | |
4286 | { | |
4287 | dprintk("exiting, stage = %d ...\n", vino_init_stage); | |
4288 | vino_module_cleanup(vino_init_stage); | |
4289 | dprintk("cleanup complete, exit!\n"); | |
4290 | } | |
4291 | ||
4292 | module_init(vino_module_init); | |
4293 | module_exit(vino_module_exit); |