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: | |
a637a114 | 15 | * - remove "mark pages reserved-hacks" from memory allocation code |
3c18ddd1 | 16 | * and implement fault() |
d203a7ec RB |
17 | * - check decimation, calculating and reporting image size when |
18 | * using decimation | |
a637a114 | 19 | * - implement read(), user mode buffers and overlay (?) |
d203a7ec RB |
20 | */ |
21 | ||
1da177e4 | 22 | #include <linux/init.h> |
d203a7ec | 23 | #include <linux/module.h> |
1da177e4 | 24 | #include <linux/delay.h> |
495515b3 | 25 | #include <linux/dma-mapping.h> |
d203a7ec RB |
26 | #include <linux/errno.h> |
27 | #include <linux/fs.h> | |
495515b3 | 28 | #include <linux/interrupt.h> |
d203a7ec RB |
29 | #include <linux/kernel.h> |
30 | #include <linux/mm.h> | |
495515b3 LM |
31 | #include <linux/time.h> |
32 | #include <linux/version.h> | |
d203a7ec RB |
33 | |
34 | #ifdef CONFIG_KMOD | |
35 | #include <linux/kmod.h> | |
36 | #endif | |
37 | ||
1da177e4 LT |
38 | #include <linux/i2c.h> |
39 | #include <linux/i2c-algo-sgi.h> | |
40 | ||
d203a7ec | 41 | #include <linux/videodev.h> |
5e87efa3 | 42 | #include <media/v4l2-common.h> |
d203a7ec | 43 | #include <linux/video_decoder.h> |
3593cab5 | 44 | #include <linux/mutex.h> |
d203a7ec | 45 | |
1da177e4 LT |
46 | #include <asm/paccess.h> |
47 | #include <asm/io.h> | |
48 | #include <asm/sgi/ip22.h> | |
1da177e4 LT |
49 | #include <asm/sgi/mc.h> |
50 | ||
51 | #include "vino.h" | |
d203a7ec RB |
52 | #include "saa7191.h" |
53 | #include "indycam.h" | |
1da177e4 | 54 | |
d203a7ec RB |
55 | /* Uncomment the following line to get lots and lots of (mostly useless) |
56 | * debug info. | |
57 | * Note that the debug output also slows down the driver significantly */ | |
58 | // #define VINO_DEBUG | |
a637a114 | 59 | // #define VINO_DEBUG_INT |
d203a7ec | 60 | |
a637a114 LM |
61 | #define VINO_MODULE_VERSION "0.0.5" |
62 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5) | |
d203a7ec RB |
63 | |
64 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); | |
65 | MODULE_VERSION(VINO_MODULE_VERSION); | |
66 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
67 | MODULE_LICENSE("GPL"); | |
68 | ||
d203a7ec RB |
69 | #ifdef VINO_DEBUG |
70 | #define dprintk(x...) printk("VINO: " x); | |
1da177e4 | 71 | #else |
d203a7ec | 72 | #define dprintk(x...) |
1da177e4 LT |
73 | #endif |
74 | ||
d203a7ec RB |
75 | #define VINO_NO_CHANNEL 0 |
76 | #define VINO_CHANNEL_A 1 | |
77 | #define VINO_CHANNEL_B 2 | |
78 | ||
79 | #define VINO_PAL_WIDTH 768 | |
80 | #define VINO_PAL_HEIGHT 576 | |
81 | #define VINO_NTSC_WIDTH 640 | |
82 | #define VINO_NTSC_HEIGHT 480 | |
83 | ||
84 | #define VINO_MIN_WIDTH 32 | |
85 | #define VINO_MIN_HEIGHT 32 | |
86 | ||
87 | #define VINO_CLIPPING_START_ODD_D1 1 | |
a637a114 LM |
88 | #define VINO_CLIPPING_START_ODD_PAL 15 |
89 | #define VINO_CLIPPING_START_ODD_NTSC 12 | |
d203a7ec RB |
90 | |
91 | #define VINO_CLIPPING_START_EVEN_D1 2 | |
a637a114 LM |
92 | #define VINO_CLIPPING_START_EVEN_PAL 15 |
93 | #define VINO_CLIPPING_START_EVEN_NTSC 12 | |
d203a7ec RB |
94 | |
95 | #define VINO_INPUT_CHANNEL_COUNT 3 | |
96 | ||
a637a114 | 97 | /* the number is the index for vino_inputs */ |
d203a7ec RB |
98 | #define VINO_INPUT_NONE -1 |
99 | #define VINO_INPUT_COMPOSITE 0 | |
100 | #define VINO_INPUT_SVIDEO 1 | |
101 | #define VINO_INPUT_D1 2 | |
102 | ||
103 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) | |
104 | ||
a637a114 | 105 | #define VINO_FIFO_THRESHOLD_DEFAULT 16 |
d203a7ec | 106 | |
d203a7ec RB |
107 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ |
108 | * VINO_PAL_HEIGHT * 4 \ | |
109 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) | |
110 | ||
a637a114 | 111 | #define VINO_FRAMEBUFFER_COUNT_MAX 8 |
d203a7ec RB |
112 | |
113 | #define VINO_FRAMEBUFFER_UNUSED 0 | |
114 | #define VINO_FRAMEBUFFER_IN_USE 1 | |
115 | #define VINO_FRAMEBUFFER_READY 2 | |
116 | ||
117 | #define VINO_QUEUE_ERROR -1 | |
118 | #define VINO_QUEUE_MAGIC 0x20050125 | |
119 | ||
120 | #define VINO_MEMORY_NONE 0 | |
121 | #define VINO_MEMORY_MMAP 1 | |
122 | #define VINO_MEMORY_USERPTR 2 | |
123 | ||
124 | #define VINO_DUMMY_DESC_COUNT 4 | |
125 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ | |
126 | ||
a637a114 LM |
127 | #define VINO_MAX_FRAME_SKIP_COUNT 128 |
128 | ||
d203a7ec RB |
129 | /* the number is the index for vino_data_formats */ |
130 | #define VINO_DATA_FMT_NONE -1 | |
131 | #define VINO_DATA_FMT_GREY 0 | |
132 | #define VINO_DATA_FMT_RGB332 1 | |
133 | #define VINO_DATA_FMT_RGB32 2 | |
134 | #define VINO_DATA_FMT_YUV 3 | |
d203a7ec RB |
135 | |
136 | #define VINO_DATA_FMT_COUNT 4 | |
137 | ||
a637a114 | 138 | /* the number is the index for vino_data_norms */ |
d203a7ec RB |
139 | #define VINO_DATA_NORM_NONE -1 |
140 | #define VINO_DATA_NORM_NTSC 0 | |
141 | #define VINO_DATA_NORM_PAL 1 | |
142 | #define VINO_DATA_NORM_SECAM 2 | |
143 | #define VINO_DATA_NORM_D1 3 | |
a637a114 | 144 | /* The following are special entries that can be used to |
d203a7ec | 145 | * autodetect the norm. */ |
a637a114 LM |
146 | #define VINO_DATA_NORM_AUTO 0xfe |
147 | #define VINO_DATA_NORM_AUTO_EXT 0xff | |
d203a7ec RB |
148 | |
149 | #define VINO_DATA_NORM_COUNT 4 | |
150 | ||
151 | /* Internal data structure definitions */ | |
152 | ||
153 | struct vino_input { | |
154 | char *name; | |
155 | v4l2_std_id std; | |
156 | }; | |
157 | ||
158 | struct vino_clipping { | |
159 | unsigned int left, right, top, bottom; | |
160 | }; | |
161 | ||
162 | struct vino_data_format { | |
163 | /* the description */ | |
164 | char *description; | |
165 | /* bytes per pixel */ | |
166 | unsigned int bpp; | |
167 | /* V4L2 fourcc code */ | |
168 | __u32 pixelformat; | |
169 | /* V4L2 colorspace (duh!) */ | |
170 | enum v4l2_colorspace colorspace; | |
171 | }; | |
172 | ||
173 | struct vino_data_norm { | |
174 | char *description; | |
175 | unsigned int width, height; | |
176 | struct vino_clipping odd; | |
177 | struct vino_clipping even; | |
178 | ||
179 | v4l2_std_id std; | |
180 | unsigned int fps_min, fps_max; | |
181 | __u32 framelines; | |
182 | }; | |
183 | ||
184 | struct vino_descriptor_table { | |
185 | /* the number of PAGE_SIZE sized pages in the buffer */ | |
186 | unsigned int page_count; | |
187 | /* virtual (kmalloc'd) pointers to the actual data | |
188 | * (in PAGE_SIZE chunks, used with mmap streaming) */ | |
189 | unsigned long *virtual; | |
190 | ||
191 | /* cpu address for the VINO descriptor table | |
192 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
193 | unsigned long *dma_cpu; | |
194 | /* dma address for the VINO descriptor table | |
195 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
196 | dma_addr_t dma; | |
197 | }; | |
198 | ||
199 | struct vino_framebuffer { | |
200 | /* identifier nubmer */ | |
201 | unsigned int id; | |
202 | /* the length of the whole buffer */ | |
203 | unsigned int size; | |
204 | /* the length of actual data in buffer */ | |
205 | unsigned int data_size; | |
206 | /* the data format */ | |
207 | unsigned int data_format; | |
208 | /* the state of buffer data */ | |
209 | unsigned int state; | |
210 | /* is the buffer mapped in user space? */ | |
211 | unsigned int map_count; | |
212 | /* memory offset for mmap() */ | |
213 | unsigned int offset; | |
214 | /* frame counter */ | |
215 | unsigned int frame_counter; | |
216 | /* timestamp (written when image capture finishes) */ | |
217 | struct timeval timestamp; | |
218 | ||
219 | struct vino_descriptor_table desc_table; | |
220 | ||
221 | spinlock_t state_lock; | |
222 | }; | |
223 | ||
224 | struct vino_framebuffer_fifo { | |
225 | unsigned int length; | |
226 | ||
227 | unsigned int used; | |
228 | unsigned int head; | |
229 | unsigned int tail; | |
230 | ||
a637a114 | 231 | unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; |
d203a7ec RB |
232 | }; |
233 | ||
234 | struct vino_framebuffer_queue { | |
235 | unsigned int magic; | |
236 | ||
237 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ | |
238 | unsigned int type; | |
239 | unsigned int length; | |
240 | ||
241 | /* data field of in and out contain index numbers for buffer */ | |
242 | struct vino_framebuffer_fifo in; | |
243 | struct vino_framebuffer_fifo out; | |
244 | ||
a637a114 | 245 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; |
1da177e4 | 246 | |
d203a7ec | 247 | spinlock_t queue_lock; |
3593cab5 | 248 | struct mutex queue_mutex; |
d203a7ec RB |
249 | wait_queue_head_t frame_wait_queue; |
250 | }; | |
251 | ||
a637a114 LM |
252 | struct vino_interrupt_data { |
253 | struct timeval timestamp; | |
254 | unsigned int frame_counter; | |
255 | unsigned int skip_count; | |
256 | unsigned int skip; | |
257 | }; | |
258 | ||
d203a7ec RB |
259 | struct vino_channel_settings { |
260 | unsigned int channel; | |
261 | ||
262 | int input; | |
263 | unsigned int data_format; | |
264 | unsigned int data_norm; | |
265 | struct vino_clipping clipping; | |
266 | unsigned int decimation; | |
267 | unsigned int line_size; | |
268 | unsigned int alpha; | |
269 | unsigned int fps; | |
270 | unsigned int framert_reg; | |
271 | ||
272 | unsigned int fifo_threshold; | |
273 | ||
274 | struct vino_framebuffer_queue fb_queue; | |
275 | ||
276 | /* number of the current field */ | |
277 | unsigned int field; | |
278 | ||
279 | /* read in progress */ | |
280 | int reading; | |
281 | /* streaming is active */ | |
282 | int streaming; | |
283 | /* the driver is currently processing the queue */ | |
284 | int capturing; | |
285 | ||
3593cab5 | 286 | struct mutex mutex; |
d203a7ec | 287 | spinlock_t capture_lock; |
1da177e4 | 288 | |
d203a7ec | 289 | unsigned int users; |
1da177e4 | 290 | |
a637a114 LM |
291 | struct vino_interrupt_data int_data; |
292 | ||
d203a7ec RB |
293 | /* V4L support */ |
294 | struct video_device *v4l_device; | |
1da177e4 LT |
295 | }; |
296 | ||
297 | struct vino_client { | |
d203a7ec RB |
298 | /* the channel which owns this client: |
299 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ | |
300 | unsigned int owner; | |
1da177e4 | 301 | struct i2c_client *driver; |
1da177e4 LT |
302 | }; |
303 | ||
d203a7ec RB |
304 | struct vino_settings { |
305 | struct vino_channel_settings a; | |
306 | struct vino_channel_settings b; | |
1da177e4 LT |
307 | |
308 | struct vino_client decoder; | |
309 | struct vino_client camera; | |
310 | ||
d203a7ec RB |
311 | /* a lock for vino register access */ |
312 | spinlock_t vino_lock; | |
313 | /* a lock for channel input changes */ | |
314 | spinlock_t input_lock; | |
1da177e4 | 315 | |
1da177e4 | 316 | unsigned long dummy_page; |
d203a7ec RB |
317 | struct vino_descriptor_table dummy_desc_table; |
318 | }; | |
319 | ||
320 | /* Module parameters */ | |
321 | ||
322 | /* | |
a637a114 | 323 | * Using vino_pixel_conversion the ABGR32-format pixels supplied |
d203a7ec RB |
324 | * by the VINO chip can be converted to more common formats |
325 | * like RGBA32 (or probably RGB24 in the future). This way we | |
326 | * can give out data that can be specified correctly with | |
327 | * the V4L2-definitions. | |
328 | * | |
329 | * The pixel format is specified as RGBA32 when no conversion | |
330 | * is used. | |
331 | * | |
332 | * Note that this only affects the 32-bit bit depth. | |
333 | * | |
334 | * Use non-zero value to enable conversion. | |
335 | */ | |
ff699e6b | 336 | static int vino_pixel_conversion; |
a637a114 | 337 | |
d203a7ec | 338 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); |
a637a114 | 339 | |
d203a7ec RB |
340 | MODULE_PARM_DESC(pixelconv, |
341 | "enable pixel conversion (non-zero value enables)"); | |
342 | ||
343 | /* Internal data structures */ | |
344 | ||
345 | static struct sgi_vino *vino; | |
346 | ||
347 | static struct vino_settings *vino_drvdata; | |
348 | ||
349 | static const char *vino_driver_name = "vino"; | |
350 | static const char *vino_driver_description = "SGI VINO"; | |
351 | static const char *vino_bus_name = "GIO64 bus"; | |
352 | static const char *vino_v4l_device_name_a = "SGI VINO Channel A"; | |
353 | static const char *vino_v4l_device_name_b = "SGI VINO Channel B"; | |
354 | ||
a637a114 LM |
355 | static void vino_capture_tasklet(unsigned long channel); |
356 | ||
357 | DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); | |
358 | DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); | |
359 | ||
d203a7ec RB |
360 | static const struct vino_input vino_inputs[] = { |
361 | { | |
362 | .name = "Composite", | |
a637a114 LM |
363 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
364 | | V4L2_STD_SECAM, | |
d203a7ec RB |
365 | },{ |
366 | .name = "S-Video", | |
a637a114 LM |
367 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
368 | | V4L2_STD_SECAM, | |
d203a7ec | 369 | },{ |
a637a114 | 370 | .name = "D1/IndyCam", |
d203a7ec RB |
371 | .std = V4L2_STD_NTSC, |
372 | } | |
373 | }; | |
374 | ||
375 | static const struct vino_data_format vino_data_formats[] = { | |
376 | { | |
377 | .description = "8-bit greyscale", | |
378 | .bpp = 1, | |
379 | .pixelformat = V4L2_PIX_FMT_GREY, | |
380 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
381 | },{ | |
382 | .description = "8-bit dithered RGB 3-3-2", | |
383 | .bpp = 1, | |
384 | .pixelformat = V4L2_PIX_FMT_RGB332, | |
385 | .colorspace = V4L2_COLORSPACE_SRGB, | |
386 | },{ | |
387 | .description = "32-bit RGB", | |
388 | .bpp = 4, | |
389 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
390 | .colorspace = V4L2_COLORSPACE_SRGB, | |
391 | },{ | |
392 | .description = "YUV 4:2:2", | |
a637a114 | 393 | .bpp = 2, |
d203a7ec RB |
394 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? |
395 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a637a114 | 396 | } |
d203a7ec RB |
397 | }; |
398 | ||
399 | static const struct vino_data_norm vino_data_norms[] = { | |
400 | { | |
401 | .description = "NTSC", | |
402 | .std = V4L2_STD_NTSC, | |
403 | .fps_min = 6, | |
404 | .fps_max = 30, | |
405 | .framelines = 525, | |
406 | .width = VINO_NTSC_WIDTH, | |
407 | .height = VINO_NTSC_HEIGHT, | |
408 | .odd = { | |
a637a114 LM |
409 | .top = VINO_CLIPPING_START_ODD_NTSC, |
410 | .left = 0, | |
d203a7ec RB |
411 | .bottom = VINO_CLIPPING_START_ODD_NTSC |
412 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 413 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
414 | }, |
415 | .even = { | |
a637a114 LM |
416 | .top = VINO_CLIPPING_START_EVEN_NTSC, |
417 | .left = 0, | |
d203a7ec RB |
418 | .bottom = VINO_CLIPPING_START_EVEN_NTSC |
419 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 420 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
421 | }, |
422 | },{ | |
423 | .description = "PAL", | |
424 | .std = V4L2_STD_PAL, | |
425 | .fps_min = 5, | |
426 | .fps_max = 25, | |
427 | .framelines = 625, | |
428 | .width = VINO_PAL_WIDTH, | |
429 | .height = VINO_PAL_HEIGHT, | |
430 | .odd = { | |
a637a114 LM |
431 | .top = VINO_CLIPPING_START_ODD_PAL, |
432 | .left = 0, | |
d203a7ec RB |
433 | .bottom = VINO_CLIPPING_START_ODD_PAL |
434 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 435 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
436 | }, |
437 | .even = { | |
a637a114 LM |
438 | .top = VINO_CLIPPING_START_EVEN_PAL, |
439 | .left = 0, | |
d203a7ec RB |
440 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
441 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 442 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
443 | }, |
444 | },{ | |
445 | .description = "SECAM", | |
446 | .std = V4L2_STD_SECAM, | |
447 | .fps_min = 5, | |
448 | .fps_max = 25, | |
449 | .framelines = 625, | |
450 | .width = VINO_PAL_WIDTH, | |
451 | .height = VINO_PAL_HEIGHT, | |
452 | .odd = { | |
a637a114 LM |
453 | .top = VINO_CLIPPING_START_ODD_PAL, |
454 | .left = 0, | |
d203a7ec RB |
455 | .bottom = VINO_CLIPPING_START_ODD_PAL |
456 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 457 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
458 | }, |
459 | .even = { | |
a637a114 LM |
460 | .top = VINO_CLIPPING_START_EVEN_PAL, |
461 | .left = 0, | |
d203a7ec RB |
462 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
463 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 464 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
465 | }, |
466 | },{ | |
a637a114 | 467 | .description = "NTSC/D1", |
d203a7ec RB |
468 | .std = V4L2_STD_NTSC, |
469 | .fps_min = 6, | |
470 | .fps_max = 30, | |
471 | .framelines = 525, | |
472 | .width = VINO_NTSC_WIDTH, | |
473 | .height = VINO_NTSC_HEIGHT, | |
474 | .odd = { | |
a637a114 LM |
475 | .top = VINO_CLIPPING_START_ODD_D1, |
476 | .left = 0, | |
d203a7ec RB |
477 | .bottom = VINO_CLIPPING_START_ODD_D1 |
478 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 479 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
480 | }, |
481 | .even = { | |
a637a114 LM |
482 | .top = VINO_CLIPPING_START_EVEN_D1, |
483 | .left = 0, | |
d203a7ec RB |
484 | .bottom = VINO_CLIPPING_START_EVEN_D1 |
485 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 486 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
487 | }, |
488 | } | |
489 | }; | |
490 | ||
491 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 | |
492 | ||
493 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { | |
494 | { | |
495 | .id = V4L2_CID_AUTOGAIN, | |
496 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
497 | .name = "Automatic Gain Control", | |
498 | .minimum = 0, | |
499 | .maximum = 1, | |
500 | .step = 1, | |
501 | .default_value = INDYCAM_AGC_DEFAULT, | |
502 | .flags = 0, | |
a637a114 | 503 | .reserved = { INDYCAM_CONTROL_AGC, 0 }, |
d203a7ec RB |
504 | },{ |
505 | .id = V4L2_CID_AUTO_WHITE_BALANCE, | |
506 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
507 | .name = "Automatic White Balance", | |
508 | .minimum = 0, | |
509 | .maximum = 1, | |
510 | .step = 1, | |
511 | .default_value = INDYCAM_AWB_DEFAULT, | |
512 | .flags = 0, | |
a637a114 | 513 | .reserved = { INDYCAM_CONTROL_AWB, 0 }, |
d203a7ec RB |
514 | },{ |
515 | .id = V4L2_CID_GAIN, | |
516 | .type = V4L2_CTRL_TYPE_INTEGER, | |
517 | .name = "Gain", | |
518 | .minimum = INDYCAM_GAIN_MIN, | |
519 | .maximum = INDYCAM_GAIN_MAX, | |
520 | .step = 1, | |
521 | .default_value = INDYCAM_GAIN_DEFAULT, | |
522 | .flags = 0, | |
a637a114 | 523 | .reserved = { INDYCAM_CONTROL_GAIN, 0 }, |
d203a7ec RB |
524 | },{ |
525 | .id = V4L2_CID_PRIVATE_BASE, | |
526 | .type = V4L2_CTRL_TYPE_INTEGER, | |
527 | .name = "Red Saturation", | |
528 | .minimum = INDYCAM_RED_SATURATION_MIN, | |
529 | .maximum = INDYCAM_RED_SATURATION_MAX, | |
530 | .step = 1, | |
531 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, | |
532 | .flags = 0, | |
a637a114 | 533 | .reserved = { INDYCAM_CONTROL_RED_SATURATION, 0 }, |
d203a7ec RB |
534 | },{ |
535 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
536 | .type = V4L2_CTRL_TYPE_INTEGER, | |
537 | .name = "Blue Saturation", | |
538 | .minimum = INDYCAM_BLUE_SATURATION_MIN, | |
539 | .maximum = INDYCAM_BLUE_SATURATION_MAX, | |
540 | .step = 1, | |
541 | .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, | |
542 | .flags = 0, | |
a637a114 | 543 | .reserved = { INDYCAM_CONTROL_BLUE_SATURATION, 0 }, |
d203a7ec RB |
544 | },{ |
545 | .id = V4L2_CID_RED_BALANCE, | |
546 | .type = V4L2_CTRL_TYPE_INTEGER, | |
547 | .name = "Red Balance", | |
548 | .minimum = INDYCAM_RED_BALANCE_MIN, | |
549 | .maximum = INDYCAM_RED_BALANCE_MAX, | |
550 | .step = 1, | |
551 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, | |
552 | .flags = 0, | |
a637a114 | 553 | .reserved = { INDYCAM_CONTROL_RED_BALANCE, 0 }, |
d203a7ec RB |
554 | },{ |
555 | .id = V4L2_CID_BLUE_BALANCE, | |
556 | .type = V4L2_CTRL_TYPE_INTEGER, | |
557 | .name = "Blue Balance", | |
558 | .minimum = INDYCAM_BLUE_BALANCE_MIN, | |
559 | .maximum = INDYCAM_BLUE_BALANCE_MAX, | |
560 | .step = 1, | |
561 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, | |
562 | .flags = 0, | |
a637a114 | 563 | .reserved = { INDYCAM_CONTROL_BLUE_BALANCE, 0 }, |
d203a7ec RB |
564 | },{ |
565 | .id = V4L2_CID_EXPOSURE, | |
566 | .type = V4L2_CTRL_TYPE_INTEGER, | |
567 | .name = "Shutter Control", | |
568 | .minimum = INDYCAM_SHUTTER_MIN, | |
569 | .maximum = INDYCAM_SHUTTER_MAX, | |
570 | .step = 1, | |
571 | .default_value = INDYCAM_SHUTTER_DEFAULT, | |
572 | .flags = 0, | |
a637a114 | 573 | .reserved = { INDYCAM_CONTROL_SHUTTER, 0 }, |
d203a7ec RB |
574 | },{ |
575 | .id = V4L2_CID_GAMMA, | |
576 | .type = V4L2_CTRL_TYPE_INTEGER, | |
577 | .name = "Gamma", | |
578 | .minimum = INDYCAM_GAMMA_MIN, | |
579 | .maximum = INDYCAM_GAMMA_MAX, | |
580 | .step = 1, | |
581 | .default_value = INDYCAM_GAMMA_DEFAULT, | |
582 | .flags = 0, | |
a637a114 | 583 | .reserved = { INDYCAM_CONTROL_GAMMA, 0 }, |
d203a7ec RB |
584 | } |
585 | }; | |
586 | ||
a637a114 | 587 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 9 |
d203a7ec RB |
588 | |
589 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { | |
590 | { | |
591 | .id = V4L2_CID_HUE, | |
592 | .type = V4L2_CTRL_TYPE_INTEGER, | |
593 | .name = "Hue", | |
594 | .minimum = SAA7191_HUE_MIN, | |
595 | .maximum = SAA7191_HUE_MAX, | |
596 | .step = 1, | |
597 | .default_value = SAA7191_HUE_DEFAULT, | |
598 | .flags = 0, | |
a637a114 | 599 | .reserved = { SAA7191_CONTROL_HUE, 0 }, |
d203a7ec RB |
600 | },{ |
601 | .id = V4L2_CID_PRIVATE_BASE, | |
a637a114 LM |
602 | .type = V4L2_CTRL_TYPE_INTEGER, |
603 | .name = "Luminance Bandpass", | |
604 | .minimum = SAA7191_BANDPASS_MIN, | |
605 | .maximum = SAA7191_BANDPASS_MAX, | |
606 | .step = 1, | |
607 | .default_value = SAA7191_BANDPASS_DEFAULT, | |
608 | .flags = 0, | |
609 | .reserved = { SAA7191_CONTROL_BANDPASS, 0 }, | |
610 | },{ | |
611 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
612 | .type = V4L2_CTRL_TYPE_INTEGER, | |
613 | .name = "Luminance Bandpass Weight", | |
614 | .minimum = SAA7191_BANDPASS_WEIGHT_MIN, | |
615 | .maximum = SAA7191_BANDPASS_WEIGHT_MAX, | |
616 | .step = 1, | |
617 | .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, | |
618 | .flags = 0, | |
619 | .reserved = { SAA7191_CONTROL_BANDPASS_WEIGHT, 0 }, | |
620 | },{ | |
621 | .id = V4L2_CID_PRIVATE_BASE + 2, | |
622 | .type = V4L2_CTRL_TYPE_INTEGER, | |
623 | .name = "HF Luminance Coring", | |
624 | .minimum = SAA7191_CORING_MIN, | |
625 | .maximum = SAA7191_CORING_MAX, | |
626 | .step = 1, | |
627 | .default_value = SAA7191_CORING_DEFAULT, | |
628 | .flags = 0, | |
629 | .reserved = { SAA7191_CONTROL_CORING, 0 }, | |
630 | },{ | |
631 | .id = V4L2_CID_PRIVATE_BASE + 3, | |
632 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
633 | .name = "Force Colour", | |
634 | .minimum = SAA7191_FORCE_COLOUR_MIN, | |
635 | .maximum = SAA7191_FORCE_COLOUR_MAX, | |
636 | .step = 1, | |
637 | .default_value = SAA7191_FORCE_COLOUR_DEFAULT, | |
638 | .flags = 0, | |
639 | .reserved = { SAA7191_CONTROL_FORCE_COLOUR, 0 }, | |
640 | },{ | |
641 | .id = V4L2_CID_PRIVATE_BASE + 4, | |
642 | .type = V4L2_CTRL_TYPE_INTEGER, | |
643 | .name = "Chrominance Gain Control", | |
644 | .minimum = SAA7191_CHROMA_GAIN_MIN, | |
645 | .maximum = SAA7191_CHROMA_GAIN_MAX, | |
646 | .step = 1, | |
647 | .default_value = SAA7191_CHROMA_GAIN_DEFAULT, | |
648 | .flags = 0, | |
649 | .reserved = { SAA7191_CONTROL_CHROMA_GAIN, 0 }, | |
650 | },{ | |
651 | .id = V4L2_CID_PRIVATE_BASE + 5, | |
d203a7ec RB |
652 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
653 | .name = "VTR Time Constant", | |
654 | .minimum = SAA7191_VTRC_MIN, | |
655 | .maximum = SAA7191_VTRC_MAX, | |
656 | .step = 1, | |
657 | .default_value = SAA7191_VTRC_DEFAULT, | |
658 | .flags = 0, | |
a637a114 LM |
659 | .reserved = { SAA7191_CONTROL_VTRC, 0 }, |
660 | },{ | |
661 | .id = V4L2_CID_PRIVATE_BASE + 6, | |
662 | .type = V4L2_CTRL_TYPE_INTEGER, | |
663 | .name = "Luminance Delay Compensation", | |
664 | .minimum = SAA7191_LUMA_DELAY_MIN, | |
665 | .maximum = SAA7191_LUMA_DELAY_MAX, | |
666 | .step = 1, | |
667 | .default_value = SAA7191_LUMA_DELAY_DEFAULT, | |
668 | .flags = 0, | |
669 | .reserved = { SAA7191_CONTROL_LUMA_DELAY, 0 }, | |
670 | },{ | |
671 | .id = V4L2_CID_PRIVATE_BASE + 7, | |
672 | .type = V4L2_CTRL_TYPE_INTEGER, | |
673 | .name = "Vertical Noise Reduction", | |
674 | .minimum = SAA7191_VNR_MIN, | |
675 | .maximum = SAA7191_VNR_MAX, | |
676 | .step = 1, | |
677 | .default_value = SAA7191_VNR_DEFAULT, | |
678 | .flags = 0, | |
679 | .reserved = { SAA7191_CONTROL_VNR, 0 }, | |
d203a7ec | 680 | } |
1da177e4 LT |
681 | }; |
682 | ||
d203a7ec | 683 | /* VINO I2C bus functions */ |
1da177e4 LT |
684 | |
685 | unsigned i2c_vino_getctrl(void *data) | |
686 | { | |
687 | return vino->i2c_control; | |
688 | } | |
689 | ||
690 | void i2c_vino_setctrl(void *data, unsigned val) | |
691 | { | |
692 | vino->i2c_control = val; | |
693 | } | |
694 | ||
695 | unsigned i2c_vino_rdata(void *data) | |
696 | { | |
697 | return vino->i2c_data; | |
698 | } | |
699 | ||
700 | void i2c_vino_wdata(void *data, unsigned val) | |
701 | { | |
702 | vino->i2c_data = val; | |
703 | } | |
704 | ||
705 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = | |
706 | { | |
707 | .getctrl = &i2c_vino_getctrl, | |
708 | .setctrl = &i2c_vino_setctrl, | |
709 | .rdata = &i2c_vino_rdata, | |
710 | .wdata = &i2c_vino_wdata, | |
711 | .xfer_timeout = 200, | |
712 | .ack_timeout = 1000, | |
713 | }; | |
714 | ||
715 | /* | |
716 | * There are two possible clients on VINO I2C bus, so we limit usage only | |
717 | * to them. | |
718 | */ | |
719 | static int i2c_vino_client_reg(struct i2c_client *client) | |
720 | { | |
a637a114 | 721 | unsigned long flags; |
d203a7ec | 722 | int ret = 0; |
1da177e4 | 723 | |
a637a114 | 724 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
1da177e4 LT |
725 | switch (client->driver->id) { |
726 | case I2C_DRIVERID_SAA7191: | |
d203a7ec RB |
727 | if (vino_drvdata->decoder.driver) |
728 | ret = -EBUSY; | |
1da177e4 | 729 | else |
d203a7ec | 730 | vino_drvdata->decoder.driver = client; |
1da177e4 LT |
731 | break; |
732 | case I2C_DRIVERID_INDYCAM: | |
d203a7ec RB |
733 | if (vino_drvdata->camera.driver) |
734 | ret = -EBUSY; | |
1da177e4 | 735 | else |
d203a7ec | 736 | vino_drvdata->camera.driver = client; |
1da177e4 LT |
737 | break; |
738 | default: | |
d203a7ec | 739 | ret = -ENODEV; |
1da177e4 | 740 | } |
a637a114 | 741 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 742 | |
d203a7ec | 743 | return ret; |
1da177e4 LT |
744 | } |
745 | ||
746 | static int i2c_vino_client_unreg(struct i2c_client *client) | |
747 | { | |
a637a114 | 748 | unsigned long flags; |
d203a7ec | 749 | int ret = 0; |
1da177e4 | 750 | |
a637a114 | 751 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
752 | if (client == vino_drvdata->decoder.driver) { |
753 | if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL) | |
754 | ret = -EBUSY; | |
1da177e4 | 755 | else |
d203a7ec RB |
756 | vino_drvdata->decoder.driver = NULL; |
757 | } else if (client == vino_drvdata->camera.driver) { | |
758 | if (vino_drvdata->camera.owner != VINO_NO_CHANNEL) | |
759 | ret = -EBUSY; | |
1da177e4 | 760 | else |
d203a7ec | 761 | vino_drvdata->camera.driver = NULL; |
1da177e4 | 762 | } |
a637a114 | 763 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 764 | |
d203a7ec | 765 | return ret; |
1da177e4 LT |
766 | } |
767 | ||
768 | static struct i2c_adapter vino_i2c_adapter = | |
769 | { | |
770 | .name = "VINO I2C bus", | |
771 | .id = I2C_HW_SGI_VINO, | |
772 | .algo_data = &i2c_sgi_vino_data, | |
773 | .client_register = &i2c_vino_client_reg, | |
774 | .client_unregister = &i2c_vino_client_unreg, | |
775 | }; | |
776 | ||
777 | static int vino_i2c_add_bus(void) | |
778 | { | |
779 | return i2c_sgi_add_bus(&vino_i2c_adapter); | |
780 | } | |
781 | ||
782 | static int vino_i2c_del_bus(void) | |
783 | { | |
3269711b | 784 | return i2c_del_adapter(&vino_i2c_adapter); |
1da177e4 LT |
785 | } |
786 | ||
d203a7ec RB |
787 | static int i2c_camera_command(unsigned int cmd, void *arg) |
788 | { | |
789 | return vino_drvdata->camera.driver-> | |
790 | driver->command(vino_drvdata->camera.driver, | |
791 | cmd, arg); | |
792 | } | |
1da177e4 | 793 | |
d203a7ec | 794 | static int i2c_decoder_command(unsigned int cmd, void *arg) |
1da177e4 | 795 | { |
d203a7ec RB |
796 | return vino_drvdata->decoder.driver-> |
797 | driver->command(vino_drvdata->decoder.driver, | |
798 | cmd, arg); | |
1da177e4 LT |
799 | } |
800 | ||
d203a7ec RB |
801 | /* VINO framebuffer/DMA descriptor management */ |
802 | ||
803 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, | |
804 | unsigned int count) | |
1da177e4 | 805 | { |
d203a7ec | 806 | unsigned int i; |
1da177e4 | 807 | |
d203a7ec RB |
808 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
809 | ||
810 | for (i = 0; i < count; i++) { | |
a637a114 | 811 | ClearPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec RB |
812 | dma_unmap_single(NULL, |
813 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
814 | PAGE_SIZE, DMA_FROM_DEVICE); | |
815 | free_page(fb->desc_table.virtual[i]); | |
816 | } | |
817 | ||
818 | dma_free_coherent(NULL, | |
819 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * | |
820 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, | |
821 | fb->desc_table.dma); | |
822 | kfree(fb->desc_table.virtual); | |
823 | ||
824 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
825 | } | |
826 | ||
827 | static void vino_free_buffer(struct vino_framebuffer *fb) | |
828 | { | |
829 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); | |
1da177e4 LT |
830 | } |
831 | ||
d203a7ec RB |
832 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
833 | unsigned int size) | |
1da177e4 | 834 | { |
d203a7ec RB |
835 | unsigned int count, i, j; |
836 | int ret = 0; | |
837 | ||
838 | dprintk("vino_allocate_buffer():\n"); | |
839 | ||
840 | if (size < 1) | |
841 | return -EINVAL; | |
842 | ||
843 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
844 | ||
845 | count = ((size / PAGE_SIZE) + 4) & ~3; | |
846 | ||
847 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", | |
848 | size, count); | |
849 | ||
850 | /* allocate memory for table with virtual (page) addresses */ | |
851 | fb->desc_table.virtual = (unsigned long *) | |
852 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
853 | if (!fb->desc_table.virtual) | |
854 | return -ENOMEM; | |
855 | ||
856 | /* allocate memory for table with dma addresses | |
857 | * (has space for four extra descriptors) */ | |
858 | fb->desc_table.dma_cpu = | |
859 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
860 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
861 | GFP_KERNEL | GFP_DMA); | |
862 | if (!fb->desc_table.dma_cpu) { | |
863 | ret = -ENOMEM; | |
864 | goto out_free_virtual; | |
865 | } | |
866 | ||
867 | /* allocate pages for the buffer and acquire the according | |
868 | * dma addresses */ | |
869 | for (i = 0; i < count; i++) { | |
870 | dma_addr_t dma_data_addr; | |
871 | ||
872 | fb->desc_table.virtual[i] = | |
873 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
874 | if (!fb->desc_table.virtual[i]) { | |
875 | ret = -ENOBUFS; | |
876 | break; | |
877 | } | |
878 | ||
879 | dma_data_addr = | |
880 | dma_map_single(NULL, | |
881 | (void *)fb->desc_table.virtual[i], | |
882 | PAGE_SIZE, DMA_FROM_DEVICE); | |
883 | ||
884 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
885 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
886 | dma_data_addr + VINO_PAGE_SIZE * j; | |
887 | } | |
888 | ||
a637a114 | 889 | SetPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec RB |
890 | } |
891 | ||
892 | /* page_count needs to be set anyway, because the descriptor table has | |
893 | * been allocated according to this number */ | |
894 | fb->desc_table.page_count = count; | |
895 | ||
896 | if (ret) { | |
897 | /* the descriptor with index i doesn't contain | |
898 | * a valid address yet */ | |
899 | vino_free_buffer_with_count(fb, i); | |
900 | return ret; | |
901 | } | |
902 | ||
903 | //fb->size = size; | |
904 | fb->size = count * PAGE_SIZE; | |
905 | fb->data_format = VINO_DATA_FMT_NONE; | |
906 | ||
907 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
908 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
909 | return 0; | |
910 | ||
911 | out_free_virtual: | |
912 | kfree(fb->desc_table.virtual); | |
913 | return ret; | |
1da177e4 LT |
914 | } |
915 | ||
d203a7ec RB |
916 | #if 0 |
917 | /* user buffers not fully implemented yet */ | |
918 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, | |
919 | void *user, | |
920 | unsigned int size) | |
1da177e4 | 921 | { |
d203a7ec RB |
922 | unsigned int count, i, j; |
923 | int ret = 0; | |
924 | ||
925 | dprintk("vino_prepare_user_buffer():\n"); | |
926 | ||
927 | if (size < 1) | |
928 | return -EINVAL; | |
929 | ||
930 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
931 | ||
932 | count = ((size / PAGE_SIZE)) & ~3; | |
933 | ||
934 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", | |
935 | size, count); | |
936 | ||
937 | /* allocate memory for table with virtual (page) addresses */ | |
938 | fb->desc_table.virtual = (unsigned long *) | |
939 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
940 | if (!fb->desc_table.virtual) | |
941 | return -ENOMEM; | |
942 | ||
943 | /* allocate memory for table with dma addresses | |
944 | * (has space for four extra descriptors) */ | |
945 | fb->desc_table.dma_cpu = | |
946 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
947 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
948 | GFP_KERNEL | GFP_DMA); | |
949 | if (!fb->desc_table.dma_cpu) { | |
950 | ret = -ENOMEM; | |
951 | goto out_free_virtual; | |
952 | } | |
953 | ||
954 | /* allocate pages for the buffer and acquire the according | |
955 | * dma addresses */ | |
956 | for (i = 0; i < count; i++) { | |
957 | dma_addr_t dma_data_addr; | |
958 | ||
959 | fb->desc_table.virtual[i] = | |
960 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
961 | if (!fb->desc_table.virtual[i]) { | |
962 | ret = -ENOBUFS; | |
963 | break; | |
964 | } | |
965 | ||
966 | dma_data_addr = | |
967 | dma_map_single(NULL, | |
968 | (void *)fb->desc_table.virtual[i], | |
969 | PAGE_SIZE, DMA_FROM_DEVICE); | |
970 | ||
971 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
972 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
973 | dma_data_addr + VINO_PAGE_SIZE * j; | |
974 | } | |
975 | ||
a637a114 | 976 | SetPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec | 977 | } |
1da177e4 | 978 | |
d203a7ec RB |
979 | /* page_count needs to be set anyway, because the descriptor table has |
980 | * been allocated according to this number */ | |
981 | fb->desc_table.page_count = count; | |
982 | ||
983 | if (ret) { | |
984 | /* the descriptor with index i doesn't contain | |
985 | * a valid address yet */ | |
986 | vino_free_buffer_with_count(fb, i); | |
987 | return ret; | |
988 | } | |
989 | ||
990 | //fb->size = size; | |
991 | fb->size = count * PAGE_SIZE; | |
992 | ||
993 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
994 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
995 | return 0; | |
996 | ||
997 | out_free_virtual: | |
998 | kfree(fb->desc_table.virtual); | |
999 | return ret; | |
1da177e4 | 1000 | } |
d203a7ec | 1001 | #endif |
1da177e4 | 1002 | |
d203a7ec | 1003 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
1da177e4 | 1004 | { |
d203a7ec RB |
1005 | int i; |
1006 | ||
1007 | dprintk("vino_sync_buffer():\n"); | |
1da177e4 | 1008 | |
d203a7ec RB |
1009 | for (i = 0; i < fb->desc_table.page_count; i++) |
1010 | dma_sync_single(NULL, | |
1011 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
1012 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1da177e4 LT |
1013 | } |
1014 | ||
d203a7ec | 1015 | /* Framebuffer fifo functions (need to be locked externally) */ |
1da177e4 | 1016 | |
a637a114 | 1017 | static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, |
d203a7ec | 1018 | unsigned int length) |
1da177e4 | 1019 | { |
d203a7ec RB |
1020 | f->length = 0; |
1021 | f->used = 0; | |
1022 | f->head = 0; | |
1023 | f->tail = 0; | |
1da177e4 | 1024 | |
a637a114 LM |
1025 | if (length > VINO_FRAMEBUFFER_COUNT_MAX) |
1026 | length = VINO_FRAMEBUFFER_COUNT_MAX; | |
1da177e4 | 1027 | |
d203a7ec RB |
1028 | f->length = length; |
1029 | } | |
1030 | ||
1031 | /* returns true/false */ | |
a637a114 LM |
1032 | static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, |
1033 | unsigned int id) | |
d203a7ec RB |
1034 | { |
1035 | unsigned int i; | |
a637a114 | 1036 | |
d203a7ec RB |
1037 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { |
1038 | if (f->data[i] == id) | |
1039 | return 1; | |
1da177e4 LT |
1040 | } |
1041 | ||
d203a7ec RB |
1042 | return 0; |
1043 | } | |
1da177e4 | 1044 | |
a637a114 | 1045 | #if 0 |
d203a7ec | 1046 | /* returns true/false */ |
a637a114 | 1047 | static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1048 | { |
1049 | return (f->used == f->length); | |
1050 | } | |
a637a114 | 1051 | #endif |
d203a7ec | 1052 | |
a637a114 | 1053 | static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1054 | { |
1055 | return f->used; | |
1056 | } | |
1057 | ||
1058 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) | |
1059 | { | |
1060 | if (id >= f->length) { | |
1061 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1062 | } |
d203a7ec RB |
1063 | |
1064 | if (vino_fifo_has_id(f, id)) { | |
1065 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1066 | } |
1da177e4 | 1067 | |
d203a7ec RB |
1068 | if (f->used < f->length) { |
1069 | f->data[f->tail] = id; | |
1070 | f->tail = (f->tail + 1) % f->length; | |
1071 | f->used++; | |
1072 | } else { | |
1073 | return VINO_QUEUE_ERROR; | |
1da177e4 LT |
1074 | } |
1075 | ||
d203a7ec RB |
1076 | return 0; |
1077 | } | |
1078 | ||
1079 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1080 | { | |
1081 | if (f->used > 0) { | |
1082 | *id = f->data[f->head]; | |
1083 | } else { | |
1084 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1085 | } |
1da177e4 | 1086 | |
d203a7ec RB |
1087 | return 0; |
1088 | } | |
1089 | ||
1090 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1091 | { | |
1092 | if (f->used > 0) { | |
1093 | *id = f->data[f->head]; | |
1094 | f->head = (f->head + 1) % f->length; | |
1095 | f->used--; | |
1096 | } else { | |
1097 | return VINO_QUEUE_ERROR; | |
1098 | } | |
1099 | ||
1100 | return 0; | |
1101 | } | |
1da177e4 | 1102 | |
d203a7ec | 1103 | /* Framebuffer queue functions */ |
1da177e4 | 1104 | |
d203a7ec RB |
1105 | /* execute with queue_lock locked */ |
1106 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, | |
1107 | unsigned int length) | |
1108 | { | |
1109 | unsigned int i; | |
1110 | ||
1111 | q->length = 0; | |
1112 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); | |
1113 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); | |
1114 | for (i = 0; i < length; i++) { | |
1115 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", | |
1116 | i); | |
1117 | vino_free_buffer(q->buffer[i]); | |
1118 | kfree(q->buffer[i]); | |
1da177e4 LT |
1119 | } |
1120 | ||
d203a7ec RB |
1121 | q->type = VINO_MEMORY_NONE; |
1122 | q->magic = 0; | |
1123 | } | |
1124 | ||
1125 | static void vino_queue_free(struct vino_framebuffer_queue *q) | |
1126 | { | |
1127 | dprintk("vino_queue_free():\n"); | |
1128 | ||
1129 | if (q->magic != VINO_QUEUE_MAGIC) | |
1130 | return; | |
1131 | if (q->type != VINO_MEMORY_MMAP) | |
1132 | return; | |
1133 | ||
3593cab5 | 1134 | mutex_lock(&q->queue_mutex); |
d203a7ec RB |
1135 | |
1136 | vino_queue_free_with_count(q, q->length); | |
1137 | ||
3593cab5 | 1138 | mutex_unlock(&q->queue_mutex); |
d203a7ec RB |
1139 | } |
1140 | ||
1141 | static int vino_queue_init(struct vino_framebuffer_queue *q, | |
1142 | unsigned int *length) | |
1143 | { | |
1144 | unsigned int i; | |
1145 | int ret = 0; | |
1146 | ||
1147 | dprintk("vino_queue_init(): length = %d\n", *length); | |
1148 | ||
1149 | if (q->magic == VINO_QUEUE_MAGIC) { | |
1150 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1151 | return -EINVAL; | |
1da177e4 LT |
1152 | } |
1153 | ||
d203a7ec RB |
1154 | if (q->type != VINO_MEMORY_NONE) { |
1155 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1156 | return -EINVAL; | |
1da177e4 | 1157 | } |
d203a7ec RB |
1158 | |
1159 | if (*length < 1) | |
1160 | return -EINVAL; | |
1161 | ||
3593cab5 | 1162 | mutex_lock(&q->queue_mutex); |
d203a7ec | 1163 | |
a637a114 LM |
1164 | if (*length > VINO_FRAMEBUFFER_COUNT_MAX) |
1165 | *length = VINO_FRAMEBUFFER_COUNT_MAX; | |
d203a7ec RB |
1166 | |
1167 | q->length = 0; | |
1168 | ||
1169 | for (i = 0; i < *length; i++) { | |
1170 | dprintk("vino_queue_init(): allocating buffer %d\n", i); | |
1171 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), | |
1172 | GFP_KERNEL); | |
1173 | if (!q->buffer[i]) { | |
1174 | dprintk("vino_queue_init(): kmalloc() failed\n"); | |
1175 | ret = -ENOMEM; | |
1176 | break; | |
1177 | } | |
1178 | ||
1179 | ret = vino_allocate_buffer(q->buffer[i], | |
1180 | VINO_FRAMEBUFFER_SIZE); | |
1181 | if (ret) { | |
1182 | kfree(q->buffer[i]); | |
1183 | dprintk("vino_queue_init(): " | |
1184 | "vino_allocate_buffer() failed\n"); | |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | q->buffer[i]->id = i; | |
1189 | if (i > 0) { | |
1190 | q->buffer[i]->offset = q->buffer[i - 1]->offset + | |
1191 | q->buffer[i - 1]->size; | |
1192 | } else { | |
1193 | q->buffer[i]->offset = 0; | |
1194 | } | |
1195 | ||
1196 | spin_lock_init(&q->buffer[i]->state_lock); | |
1197 | ||
1198 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " | |
1199 | "size = %d\n", i, q->buffer[i]->offset, | |
1200 | q->buffer[i]->size); | |
1da177e4 LT |
1201 | } |
1202 | ||
d203a7ec RB |
1203 | if (ret) { |
1204 | vino_queue_free_with_count(q, i); | |
1205 | *length = 0; | |
1206 | } else { | |
1207 | q->length = *length; | |
1208 | vino_fifo_init(&q->in, q->length); | |
1209 | vino_fifo_init(&q->out, q->length); | |
1210 | q->type = VINO_MEMORY_MMAP; | |
1211 | q->magic = VINO_QUEUE_MAGIC; | |
1212 | } | |
1da177e4 | 1213 | |
3593cab5 | 1214 | mutex_unlock(&q->queue_mutex); |
1da177e4 LT |
1215 | |
1216 | return ret; | |
1217 | } | |
1218 | ||
d203a7ec RB |
1219 | static struct vino_framebuffer *vino_queue_add(struct |
1220 | vino_framebuffer_queue *q, | |
1221 | unsigned int id) | |
1da177e4 | 1222 | { |
d203a7ec RB |
1223 | struct vino_framebuffer *ret = NULL; |
1224 | unsigned int total; | |
1225 | unsigned long flags; | |
1226 | ||
1227 | dprintk("vino_queue_add(): id = %d\n", id); | |
1228 | ||
1229 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1230 | return ret; | |
1231 | } | |
1232 | ||
1233 | spin_lock_irqsave(&q->queue_lock, flags); | |
1234 | ||
1235 | if (q->length == 0) | |
1236 | goto out; | |
1237 | ||
1238 | if (id >= q->length) | |
1239 | goto out; | |
1240 | ||
1241 | /* not needed?: if (vino_fifo_full(&q->out)) { | |
1242 | goto out; | |
1243 | }*/ | |
1244 | /* check that outgoing queue isn't already full | |
1245 | * (or that it won't become full) */ | |
1246 | total = vino_fifo_get_used(&q->in) + | |
1247 | vino_fifo_get_used(&q->out); | |
1248 | if (total >= q->length) | |
1249 | goto out; | |
1250 | ||
1251 | if (vino_fifo_enqueue(&q->in, id)) | |
1252 | goto out; | |
1253 | ||
1254 | ret = q->buffer[id]; | |
1255 | ||
1256 | out: | |
1257 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1258 | ||
1259 | return ret; | |
1da177e4 LT |
1260 | } |
1261 | ||
d203a7ec RB |
1262 | static struct vino_framebuffer *vino_queue_transfer(struct |
1263 | vino_framebuffer_queue *q) | |
1264 | { | |
1265 | struct vino_framebuffer *ret = NULL; | |
1266 | struct vino_framebuffer *fb; | |
1267 | int id; | |
1268 | unsigned long flags; | |
1da177e4 | 1269 | |
d203a7ec RB |
1270 | dprintk("vino_queue_transfer():\n"); |
1271 | ||
1272 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1273 | return ret; | |
1274 | } | |
1275 | ||
1276 | spin_lock_irqsave(&q->queue_lock, flags); | |
1277 | ||
1278 | if (q->length == 0) | |
1279 | goto out; | |
1280 | ||
1281 | // now this actually removes an entry from the incoming queue | |
1282 | if (vino_fifo_dequeue(&q->in, &id)) { | |
1283 | goto out; | |
1284 | } | |
1285 | ||
1286 | dprintk("vino_queue_transfer(): id = %d\n", id); | |
1287 | fb = q->buffer[id]; | |
1288 | ||
1289 | // we have already checked that the outgoing queue is not full, but... | |
1290 | if (vino_fifo_enqueue(&q->out, id)) { | |
1291 | printk(KERN_ERR "vino_queue_transfer(): " | |
1292 | "outgoing queue is full, this shouldn't happen!\n"); | |
1293 | goto out; | |
1294 | } | |
1295 | ||
1296 | ret = fb; | |
1297 | out: | |
1298 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1299 | ||
1300 | return ret; | |
1301 | } | |
1302 | ||
1303 | /* returns true/false */ | |
1304 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, | |
1305 | unsigned int id) | |
1306 | { | |
1307 | int ret = 0; | |
1308 | unsigned long flags; | |
1309 | ||
1310 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1311 | return ret; | |
1312 | } | |
1313 | ||
1314 | spin_lock_irqsave(&q->queue_lock, flags); | |
1315 | ||
1316 | if (q->length == 0) | |
1317 | goto out; | |
1318 | ||
1319 | ret = vino_fifo_has_id(&q->in, id); | |
1320 | ||
1321 | out: | |
1322 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1323 | ||
1324 | return ret; | |
1325 | } | |
1326 | ||
1327 | /* returns true/false */ | |
1328 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, | |
1329 | unsigned int id) | |
1330 | { | |
1331 | int ret = 0; | |
1332 | unsigned long flags; | |
1333 | ||
1334 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1335 | return ret; | |
1336 | } | |
1337 | ||
1338 | spin_lock_irqsave(&q->queue_lock, flags); | |
1339 | ||
1340 | if (q->length == 0) | |
1341 | goto out; | |
1342 | ||
1343 | ret = vino_fifo_has_id(&q->out, id); | |
1344 | ||
1345 | out: | |
1346 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1347 | ||
1348 | return ret; | |
1349 | } | |
1350 | ||
1351 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, | |
1352 | unsigned int *used) | |
1353 | { | |
1354 | int ret = 0; | |
1355 | unsigned long flags; | |
1356 | ||
1357 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1358 | return VINO_QUEUE_ERROR; | |
1359 | } | |
1360 | ||
1361 | spin_lock_irqsave(&q->queue_lock, flags); | |
1362 | ||
1363 | if (q->length == 0) { | |
1364 | ret = VINO_QUEUE_ERROR; | |
1365 | goto out; | |
1366 | } | |
1367 | ||
1368 | *used = vino_fifo_get_used(&q->in); | |
1369 | ||
1370 | out: | |
1371 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1372 | ||
1373 | return ret; | |
1374 | } | |
1375 | ||
1376 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, | |
1377 | unsigned int *used) | |
1378 | { | |
1379 | int ret = 0; | |
1380 | unsigned long flags; | |
1381 | ||
1382 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1383 | return VINO_QUEUE_ERROR; | |
1384 | } | |
1385 | ||
1386 | spin_lock_irqsave(&q->queue_lock, flags); | |
1387 | ||
1388 | if (q->length == 0) { | |
1389 | ret = VINO_QUEUE_ERROR; | |
1390 | goto out; | |
1391 | } | |
1392 | ||
1393 | *used = vino_fifo_get_used(&q->out); | |
1394 | ||
1395 | out: | |
1396 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1397 | ||
1398 | return ret; | |
1399 | } | |
1400 | ||
a637a114 | 1401 | #if 0 |
d203a7ec RB |
1402 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, |
1403 | unsigned int *total) | |
1404 | { | |
1405 | int ret = 0; | |
1406 | unsigned long flags; | |
1407 | ||
1408 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1409 | return VINO_QUEUE_ERROR; | |
1410 | } | |
1411 | ||
1412 | spin_lock_irqsave(&q->queue_lock, flags); | |
1413 | ||
1414 | if (q->length == 0) { | |
1415 | ret = VINO_QUEUE_ERROR; | |
1416 | goto out; | |
1417 | } | |
1418 | ||
1419 | *total = vino_fifo_get_used(&q->in) + | |
1420 | vino_fifo_get_used(&q->out); | |
1421 | ||
1422 | out: | |
1423 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1424 | ||
1425 | return ret; | |
1426 | } | |
a637a114 | 1427 | #endif |
d203a7ec RB |
1428 | |
1429 | static struct vino_framebuffer *vino_queue_peek(struct | |
1430 | vino_framebuffer_queue *q, | |
1431 | unsigned int *id) | |
1432 | { | |
1433 | struct vino_framebuffer *ret = NULL; | |
1434 | unsigned long flags; | |
1435 | ||
1436 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1437 | return ret; | |
1438 | } | |
1439 | ||
1440 | spin_lock_irqsave(&q->queue_lock, flags); | |
1441 | ||
1442 | if (q->length == 0) | |
1443 | goto out; | |
1444 | ||
1445 | if (vino_fifo_peek(&q->in, id)) { | |
1446 | goto out; | |
1447 | } | |
1448 | ||
1449 | ret = q->buffer[*id]; | |
1450 | out: | |
1451 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1452 | ||
1453 | return ret; | |
1454 | } | |
1455 | ||
1456 | static struct vino_framebuffer *vino_queue_remove(struct | |
1457 | vino_framebuffer_queue *q, | |
1458 | unsigned int *id) | |
1459 | { | |
1460 | struct vino_framebuffer *ret = NULL; | |
1461 | unsigned long flags; | |
1462 | dprintk("vino_queue_remove():\n"); | |
1463 | ||
1464 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1465 | return ret; | |
1466 | } | |
1467 | ||
1468 | spin_lock_irqsave(&q->queue_lock, flags); | |
1469 | ||
1470 | if (q->length == 0) | |
1471 | goto out; | |
1472 | ||
1473 | if (vino_fifo_dequeue(&q->out, id)) { | |
1474 | goto out; | |
1475 | } | |
1476 | ||
1477 | dprintk("vino_queue_remove(): id = %d\n", *id); | |
1478 | ret = q->buffer[*id]; | |
1479 | out: | |
1480 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1481 | ||
1482 | return ret; | |
1483 | } | |
1484 | ||
1485 | static struct | |
1486 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, | |
1487 | unsigned int id) | |
1488 | { | |
1489 | struct vino_framebuffer *ret = NULL; | |
1490 | unsigned long flags; | |
1491 | ||
1492 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1493 | return ret; | |
1494 | } | |
1495 | ||
1496 | spin_lock_irqsave(&q->queue_lock, flags); | |
1497 | ||
1498 | if (q->length == 0) | |
1499 | goto out; | |
1500 | ||
1501 | if (id >= q->length) | |
1502 | goto out; | |
1503 | ||
1504 | ret = q->buffer[id]; | |
1505 | out: | |
1506 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1507 | ||
1508 | return ret; | |
1509 | } | |
1510 | ||
1511 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) | |
1512 | { | |
1513 | unsigned int length = 0; | |
1514 | unsigned long flags; | |
1515 | ||
1516 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1517 | return length; | |
1518 | } | |
1519 | ||
1520 | spin_lock_irqsave(&q->queue_lock, flags); | |
1521 | length = q->length; | |
1522 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1523 | ||
1524 | return length; | |
1525 | } | |
1526 | ||
1527 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) | |
1528 | { | |
1529 | unsigned int i; | |
1530 | int ret = 0; | |
1531 | unsigned long flags; | |
1532 | ||
1533 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1534 | return ret; | |
1535 | } | |
1536 | ||
1537 | spin_lock_irqsave(&q->queue_lock, flags); | |
1538 | for (i = 0; i < q->length; i++) { | |
1539 | if (q->buffer[i]->map_count > 0) { | |
1540 | ret = 1; | |
1541 | break; | |
1542 | } | |
1543 | } | |
1544 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1545 | ||
1546 | return ret; | |
1547 | } | |
1548 | ||
1549 | /* VINO functions */ | |
1550 | ||
1551 | /* execute with input_lock locked */ | |
1552 | static void vino_update_line_size(struct vino_channel_settings *vcs) | |
1553 | { | |
1554 | unsigned int w = vcs->clipping.right - vcs->clipping.left; | |
1555 | unsigned int d = vcs->decimation; | |
1556 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; | |
d56410e0 | 1557 | unsigned int lsize; |
d203a7ec RB |
1558 | |
1559 | dprintk("update_line_size(): before: w = %d, d = %d, " | |
1560 | "line_size = %d\n", w, d, vcs->line_size); | |
a637a114 | 1561 | |
d56410e0 | 1562 | /* line size must be multiple of 8 bytes */ |
d203a7ec RB |
1563 | lsize = (bpp * (w / d)) & ~7; |
1564 | w = (lsize / bpp) * d; | |
1565 | ||
1566 | vcs->clipping.right = vcs->clipping.left + w; | |
1567 | vcs->line_size = lsize; | |
a637a114 | 1568 | |
d203a7ec RB |
1569 | dprintk("update_line_size(): after: w = %d, d = %d, " |
1570 | "line_size = %d\n", w, d, vcs->line_size); | |
1571 | } | |
1572 | ||
1573 | /* execute with input_lock locked */ | |
1574 | static void vino_set_clipping(struct vino_channel_settings *vcs, | |
1575 | unsigned int x, unsigned int y, | |
1576 | unsigned int w, unsigned int h) | |
1577 | { | |
1578 | unsigned int maxwidth, maxheight; | |
1579 | unsigned int d; | |
1580 | ||
1581 | maxwidth = vino_data_norms[vcs->data_norm].width; | |
1582 | maxheight = vino_data_norms[vcs->data_norm].height; | |
1583 | d = vcs->decimation; | |
1584 | ||
1585 | y &= ~1; /* odd/even fields */ | |
1586 | ||
1587 | if (x > maxwidth) { | |
1588 | x = 0; | |
1589 | } | |
1590 | if (y > maxheight) { | |
1591 | y = 0; | |
1592 | } | |
1593 | ||
1594 | if (((w / d) < VINO_MIN_WIDTH) | |
1595 | || ((h / d) < VINO_MIN_HEIGHT)) { | |
1596 | w = VINO_MIN_WIDTH * d; | |
1597 | h = VINO_MIN_HEIGHT * d; | |
1598 | } | |
1599 | ||
1600 | if ((x + w) > maxwidth) { | |
1601 | w = maxwidth - x; | |
1602 | if ((w / d) < VINO_MIN_WIDTH) | |
1603 | x = maxwidth - VINO_MIN_WIDTH * d; | |
1604 | } | |
1605 | if ((y + h) > maxheight) { | |
1606 | h = maxheight - y; | |
1607 | if ((h / d) < VINO_MIN_HEIGHT) | |
1608 | y = maxheight - VINO_MIN_HEIGHT * d; | |
1609 | } | |
1610 | ||
1611 | vcs->clipping.left = x; | |
1612 | vcs->clipping.top = y; | |
1613 | vcs->clipping.right = x + w; | |
1614 | vcs->clipping.bottom = y + h; | |
1615 | ||
1616 | vino_update_line_size(vcs); | |
1617 | ||
1618 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", | |
1619 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, | |
1620 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); | |
1621 | } | |
1622 | ||
1623 | /* execute with input_lock locked */ | |
a637a114 | 1624 | static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) |
d203a7ec RB |
1625 | { |
1626 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, | |
1627 | vino_data_norms[vcs->data_norm].height); | |
1628 | } | |
1629 | ||
1630 | /* execute with input_lock locked */ | |
1631 | static void vino_set_scaling(struct vino_channel_settings *vcs, | |
1632 | unsigned int w, unsigned int h) | |
1633 | { | |
1634 | unsigned int x, y, curw, curh, d; | |
1635 | ||
1636 | x = vcs->clipping.left; | |
1637 | y = vcs->clipping.top; | |
1638 | curw = vcs->clipping.right - vcs->clipping.left; | |
1639 | curh = vcs->clipping.bottom - vcs->clipping.top; | |
1640 | ||
1641 | d = max(curw / w, curh / h); | |
1642 | ||
1643 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", | |
1644 | w, h, curw, curh, d); | |
1645 | ||
1646 | if (d < 1) { | |
1647 | d = 1; | |
a637a114 | 1648 | } else if (d > 8) { |
d203a7ec RB |
1649 | d = 8; |
1650 | } | |
1651 | ||
1652 | vcs->decimation = d; | |
1653 | vino_set_clipping(vcs, x, y, w * d, h * d); | |
1654 | ||
1655 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, | |
1656 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, | |
1657 | vcs->decimation, vcs->line_size); | |
1658 | } | |
1659 | ||
1660 | /* execute with input_lock locked */ | |
a637a114 | 1661 | static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) |
d203a7ec RB |
1662 | { |
1663 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, | |
1664 | vcs->clipping.bottom - vcs->clipping.top); | |
1665 | } | |
1666 | ||
1667 | /* execute with input_lock locked */ | |
1668 | static void vino_set_framerate(struct vino_channel_settings *vcs, | |
1669 | unsigned int fps) | |
1670 | { | |
1671 | unsigned int mask; | |
1672 | ||
1673 | switch (vcs->data_norm) { | |
1674 | case VINO_DATA_NORM_NTSC: | |
1675 | case VINO_DATA_NORM_D1: | |
1676 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! | |
1677 | ||
1678 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1679 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1680 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1681 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1682 | ||
1683 | switch (fps) { | |
1684 | case 6: | |
1685 | mask = 0x003; | |
1686 | break; | |
1687 | case 12: | |
1688 | mask = 0x0c3; | |
1689 | break; | |
1690 | case 18: | |
1691 | mask = 0x333; | |
1692 | break; | |
1693 | case 24: | |
1694 | mask = 0x3ff; | |
1695 | break; | |
1696 | case 30: | |
1697 | mask = 0xfff; | |
1698 | break; | |
1699 | default: | |
1700 | mask = VINO_FRAMERT_FULL; | |
1701 | } | |
1702 | vcs->framert_reg = VINO_FRAMERT_RT(mask); | |
1703 | break; | |
1704 | case VINO_DATA_NORM_PAL: | |
1705 | case VINO_DATA_NORM_SECAM: | |
1706 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! | |
1707 | ||
1708 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1709 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1710 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1711 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1712 | ||
1713 | switch (fps) { | |
1714 | case 5: | |
1715 | mask = 0x003; | |
1716 | break; | |
1717 | case 10: | |
1718 | mask = 0x0c3; | |
1719 | break; | |
1720 | case 15: | |
1721 | mask = 0x333; | |
1722 | break; | |
1723 | case 20: | |
1724 | mask = 0x0ff; | |
1725 | break; | |
1726 | case 25: | |
1727 | mask = 0x3ff; | |
1728 | break; | |
1729 | default: | |
1730 | mask = VINO_FRAMERT_FULL; | |
1731 | } | |
1732 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; | |
1733 | break; | |
1734 | } | |
1735 | ||
1736 | vcs->fps = fps; | |
1737 | } | |
1738 | ||
1739 | /* execute with input_lock locked */ | |
a637a114 LM |
1740 | static inline void vino_set_default_framerate(struct |
1741 | vino_channel_settings *vcs) | |
d203a7ec RB |
1742 | { |
1743 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); | |
1744 | } | |
1745 | ||
1746 | /* | |
1747 | * Prepare VINO for DMA transfer... | |
1748 | * (execute only with vino_lock and input_lock locked) | |
1749 | */ | |
1750 | static int vino_dma_setup(struct vino_channel_settings *vcs, | |
1751 | struct vino_framebuffer *fb) | |
1752 | { | |
1753 | u32 ctrl, intr; | |
1754 | struct sgi_vino_channel *ch; | |
1755 | const struct vino_data_norm *norm; | |
1756 | ||
1757 | dprintk("vino_dma_setup():\n"); | |
1758 | ||
1759 | vcs->field = 0; | |
1760 | fb->frame_counter = 0; | |
1761 | ||
1762 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1763 | norm = &vino_data_norms[vcs->data_norm]; | |
1764 | ||
1765 | ch->page_index = 0; | |
1766 | ch->line_count = 0; | |
1767 | ||
1768 | /* VINO line size register is set 8 bytes less than actual */ | |
1769 | ch->line_size = vcs->line_size - 8; | |
1770 | ||
1771 | /* let VINO know where to transfer data */ | |
1772 | ch->start_desc_tbl = fb->desc_table.dma; | |
1773 | ch->next_4_desc = fb->desc_table.dma; | |
1774 | ||
1775 | /* give vino time to fetch the first four descriptors, 5 usec | |
1776 | * should be more than enough time */ | |
1777 | udelay(VINO_DESC_FETCH_DELAY); | |
1778 | ||
a637a114 LM |
1779 | dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", |
1780 | ch->start_desc_tbl, ch->next_4_desc); | |
1781 | ||
d203a7ec RB |
1782 | /* set the alpha register */ |
1783 | ch->alpha = vcs->alpha; | |
1784 | ||
1785 | /* set clipping registers */ | |
1786 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | | |
1787 | VINO_CLIP_EVEN(norm->even.top + | |
1788 | vcs->clipping.top / 2) | | |
1789 | VINO_CLIP_X(vcs->clipping.left); | |
1790 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + | |
1791 | vcs->clipping.bottom / 2 - 1) | | |
1792 | VINO_CLIP_EVEN(norm->even.top + | |
1793 | vcs->clipping.bottom / 2 - 1) | | |
1794 | VINO_CLIP_X(vcs->clipping.right); | |
d203a7ec RB |
1795 | |
1796 | /* set the size of actual content in the buffer (DECIMATION !) */ | |
1797 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / | |
1798 | vcs->decimation) * | |
1799 | ((vcs->clipping.bottom - vcs->clipping.top) / | |
1800 | vcs->decimation) * | |
1801 | vino_data_formats[vcs->data_format].bpp; | |
1802 | ||
1803 | ch->frame_rate = vcs->framert_reg; | |
1804 | ||
1805 | ctrl = vino->control; | |
1806 | intr = vino->intr_status; | |
1807 | ||
1808 | if (vcs->channel == VINO_CHANNEL_A) { | |
1809 | /* All interrupt conditions for this channel was cleared | |
1810 | * so clear the interrupt status register and enable | |
1811 | * interrupts */ | |
1812 | intr &= ~VINO_INTSTAT_A; | |
1813 | ctrl |= VINO_CTRL_A_INT; | |
1814 | ||
1815 | /* enable synchronization */ | |
1816 | ctrl |= VINO_CTRL_A_SYNC_ENBL; | |
1817 | ||
1818 | /* enable frame assembly */ | |
1819 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; | |
1820 | ||
1821 | /* set decimation used */ | |
1822 | if (vcs->decimation < 2) | |
1823 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; | |
1824 | else { | |
1825 | ctrl |= VINO_CTRL_A_DEC_ENBL; | |
1826 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; | |
1827 | ctrl |= (vcs->decimation - 1) << | |
1828 | VINO_CTRL_A_DEC_SCALE_SHIFT; | |
1829 | } | |
1830 | ||
1831 | /* select input interface */ | |
1832 | if (vcs->input == VINO_INPUT_D1) | |
1833 | ctrl |= VINO_CTRL_A_SELECT; | |
1834 | else | |
1835 | ctrl &= ~VINO_CTRL_A_SELECT; | |
1836 | ||
1837 | /* palette */ | |
1838 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | | |
1839 | VINO_CTRL_A_DITHER); | |
1840 | } else { | |
1841 | intr &= ~VINO_INTSTAT_B; | |
1842 | ctrl |= VINO_CTRL_B_INT; | |
1843 | ||
1844 | ctrl |= VINO_CTRL_B_SYNC_ENBL; | |
1845 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; | |
1846 | ||
1847 | if (vcs->decimation < 2) | |
1848 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; | |
1849 | else { | |
1850 | ctrl |= VINO_CTRL_B_DEC_ENBL; | |
1851 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; | |
1852 | ctrl |= (vcs->decimation - 1) << | |
1853 | VINO_CTRL_B_DEC_SCALE_SHIFT; | |
1854 | ||
1855 | } | |
1856 | if (vcs->input == VINO_INPUT_D1) | |
1857 | ctrl |= VINO_CTRL_B_SELECT; | |
1858 | else | |
1859 | ctrl &= ~VINO_CTRL_B_SELECT; | |
1860 | ||
1861 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | | |
1862 | VINO_CTRL_B_DITHER); | |
1863 | } | |
1864 | ||
1865 | /* set palette */ | |
1866 | fb->data_format = vcs->data_format; | |
1867 | ||
1868 | switch (vcs->data_format) { | |
1869 | case VINO_DATA_FMT_GREY: | |
1870 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1871 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; | |
1872 | break; | |
1873 | case VINO_DATA_FMT_RGB32: | |
1874 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1875 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; | |
1876 | break; | |
1877 | case VINO_DATA_FMT_YUV: | |
1878 | /* nothing needs to be done */ | |
1879 | break; | |
1880 | case VINO_DATA_FMT_RGB332: | |
1881 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1882 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : | |
1883 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; | |
1884 | break; | |
1885 | } | |
1886 | ||
1887 | vino->intr_status = intr; | |
1888 | vino->control = ctrl; | |
1889 | ||
1890 | return 0; | |
1891 | } | |
1892 | ||
1893 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1894 | static inline void vino_dma_start(struct vino_channel_settings *vcs) |
d203a7ec RB |
1895 | { |
1896 | u32 ctrl = vino->control; | |
1897 | ||
1898 | dprintk("vino_dma_start():\n"); | |
1899 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1900 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; | |
1901 | vino->control = ctrl; | |
1902 | } | |
1903 | ||
1904 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1905 | static inline void vino_dma_stop(struct vino_channel_settings *vcs) |
d203a7ec RB |
1906 | { |
1907 | u32 ctrl = vino->control; | |
1908 | ||
1909 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? | |
1910 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; | |
a637a114 LM |
1911 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
1912 | ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; | |
d203a7ec RB |
1913 | vino->control = ctrl; |
1914 | dprintk("vino_dma_stop():\n"); | |
1915 | } | |
1916 | ||
1917 | /* | |
1918 | * Load dummy page to descriptor registers. This prevents generating of | |
1919 | * spurious interrupts. (execute only with vino_lock locked) | |
1920 | */ | |
1921 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) | |
1922 | { | |
1923 | struct sgi_vino_channel *ch; | |
1924 | ||
1925 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1926 | ||
1927 | ch->page_index = 0; | |
1928 | ch->line_count = 0; | |
1929 | ||
1930 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; | |
1931 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
1932 | ||
1933 | udelay(VINO_DESC_FETCH_DELAY); | |
1934 | dprintk("channel %c clear interrupt condition\n", | |
1935 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); | |
1936 | } | |
1937 | ||
1938 | static int vino_capture(struct vino_channel_settings *vcs, | |
1939 | struct vino_framebuffer *fb) | |
1940 | { | |
1941 | int err = 0; | |
1942 | unsigned long flags, flags2; | |
1943 | ||
1944 | spin_lock_irqsave(&fb->state_lock, flags); | |
1945 | ||
1946 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
1947 | err = -EBUSY; | |
1948 | fb->state = VINO_FRAMEBUFFER_IN_USE; | |
1949 | ||
1950 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
1951 | ||
1952 | if (err) | |
1953 | return err; | |
1954 | ||
1955 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
1956 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); | |
1957 | ||
1958 | vino_dma_setup(vcs, fb); | |
1959 | vino_dma_start(vcs); | |
1960 | ||
1961 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); | |
1962 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
1963 | ||
1964 | return err; | |
1965 | } | |
1966 | ||
1967 | static | |
1968 | struct vino_framebuffer *vino_capture_enqueue(struct | |
1969 | vino_channel_settings *vcs, | |
1970 | unsigned int index) | |
1971 | { | |
1972 | struct vino_framebuffer *fb; | |
1973 | unsigned long flags; | |
1974 | ||
1975 | dprintk("vino_capture_enqueue():\n"); | |
1976 | ||
1977 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1978 | ||
1979 | fb = vino_queue_add(&vcs->fb_queue, index); | |
1980 | if (fb == NULL) { | |
1981 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " | |
1982 | "queue full?\n"); | |
1983 | goto out; | |
1984 | } | |
1985 | out: | |
1986 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1987 | ||
1988 | return fb; | |
1989 | } | |
1990 | ||
1991 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) | |
1992 | { | |
1993 | struct vino_framebuffer *fb; | |
1994 | unsigned int incoming, id; | |
1995 | int err = 0; | |
a637a114 | 1996 | unsigned long flags; |
d203a7ec RB |
1997 | |
1998 | dprintk("vino_capture_next():\n"); | |
1999 | ||
2000 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2001 | ||
2002 | if (start) { | |
2003 | /* start capture only if capture isn't in progress already */ | |
2004 | if (vcs->capturing) { | |
2005 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2006 | return 0; | |
2007 | } | |
2008 | ||
2009 | } else { | |
2010 | /* capture next frame: | |
2011 | * stop capture if capturing is not set */ | |
2012 | if (!vcs->capturing) { | |
2013 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2014 | return 0; | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
2019 | if (err) { | |
2020 | dprintk("vino_capture_next(): vino_queue_get_incoming() " | |
2021 | "failed\n"); | |
2022 | err = -EINVAL; | |
2023 | goto out; | |
2024 | } | |
2025 | if (incoming == 0) { | |
2026 | dprintk("vino_capture_next(): no buffers available\n"); | |
2027 | goto out; | |
2028 | } | |
2029 | ||
2030 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2031 | if (fb == NULL) { | |
2032 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); | |
2033 | err = -EINVAL; | |
2034 | goto out; | |
2035 | } | |
2036 | ||
d203a7ec RB |
2037 | if (start) { |
2038 | vcs->capturing = 1; | |
2039 | } | |
2040 | ||
2041 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2042 | ||
2043 | err = vino_capture(vcs, fb); | |
2044 | ||
2045 | return err; | |
2046 | ||
2047 | out: | |
2048 | vcs->capturing = 0; | |
2049 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2050 | ||
2051 | return err; | |
2052 | } | |
2053 | ||
a637a114 | 2054 | static inline int vino_is_capturing(struct vino_channel_settings *vcs) |
d203a7ec RB |
2055 | { |
2056 | int ret; | |
2057 | unsigned long flags; | |
2058 | ||
2059 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2060 | ||
2061 | ret = vcs->capturing; | |
2062 | ||
2063 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2064 | ||
2065 | return ret; | |
2066 | } | |
2067 | ||
2068 | /* waits until a frame is captured */ | |
2069 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) | |
2070 | { | |
2071 | wait_queue_t wait; | |
2072 | int err = 0; | |
2073 | ||
2074 | dprintk("vino_wait_for_frame():\n"); | |
2075 | ||
2076 | init_waitqueue_entry(&wait, current); | |
2077 | /* add ourselves into wait queue */ | |
2078 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
d203a7ec RB |
2079 | |
2080 | /* to ensure that schedule_timeout will return immediately | |
f3a43d30 | 2081 | * if VINO interrupt was triggered meanwhile */ |
818ca471 | 2082 | schedule_timeout_interruptible(msecs_to_jiffies(100)); |
d203a7ec RB |
2083 | |
2084 | if (signal_pending(current)) | |
2085 | err = -EINTR; | |
2086 | ||
2087 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2088 | ||
2089 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", | |
2090 | err ? "failed" : "ok"); | |
2091 | ||
2092 | return err; | |
2093 | } | |
2094 | ||
2095 | /* the function assumes that PAGE_SIZE % 4 == 0 */ | |
2096 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { | |
2097 | unsigned char *pageptr; | |
2098 | unsigned int page, i; | |
2099 | unsigned char a; | |
2100 | ||
2101 | for (page = 0; page < fb->desc_table.page_count; page++) { | |
2102 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; | |
2103 | ||
2104 | for (i = 0; i < PAGE_SIZE; i += 4) { | |
2105 | a = pageptr[0]; | |
2106 | pageptr[0] = pageptr[3]; | |
2107 | pageptr[1] = pageptr[2]; | |
2108 | pageptr[2] = pageptr[1]; | |
2109 | pageptr[3] = a; | |
2110 | pageptr += 4; | |
2111 | } | |
2112 | } | |
2113 | } | |
2114 | ||
2115 | /* checks if the buffer is in correct state and syncs data */ | |
2116 | static int vino_check_buffer(struct vino_channel_settings *vcs, | |
2117 | struct vino_framebuffer *fb) | |
2118 | { | |
2119 | int err = 0; | |
2120 | unsigned long flags; | |
2121 | ||
2122 | dprintk("vino_check_buffer():\n"); | |
2123 | ||
2124 | spin_lock_irqsave(&fb->state_lock, flags); | |
2125 | switch (fb->state) { | |
2126 | case VINO_FRAMEBUFFER_IN_USE: | |
2127 | err = -EIO; | |
2128 | break; | |
2129 | case VINO_FRAMEBUFFER_READY: | |
2130 | vino_sync_buffer(fb); | |
2131 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2132 | break; | |
2133 | default: | |
2134 | err = -EINVAL; | |
2135 | } | |
2136 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2137 | ||
2138 | if (!err) { | |
2139 | if (vino_pixel_conversion | |
2140 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { | |
2141 | vino_convert_to_rgba(fb); | |
2142 | } | |
2143 | } else if (err && (err != -EINVAL)) { | |
2144 | dprintk("vino_check_buffer(): buffer not ready\n"); | |
2145 | ||
2146 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2147 | vino_dma_stop(vcs); | |
2148 | vino_clear_interrupt(vcs); | |
2149 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2150 | } | |
2151 | ||
2152 | return err; | |
2153 | } | |
2154 | ||
2155 | /* forcefully terminates capture */ | |
2156 | static void vino_capture_stop(struct vino_channel_settings *vcs) | |
2157 | { | |
2158 | unsigned int incoming = 0, outgoing = 0, id; | |
2159 | unsigned long flags, flags2; | |
2160 | ||
2161 | dprintk("vino_capture_stop():\n"); | |
2162 | ||
2163 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
a637a114 | 2164 | |
d203a7ec RB |
2165 | /* unset capturing to stop queue processing */ |
2166 | vcs->capturing = 0; | |
2167 | ||
2168 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); | |
2169 | ||
2170 | vino_dma_stop(vcs); | |
2171 | vino_clear_interrupt(vcs); | |
2172 | ||
2173 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); | |
2174 | ||
2175 | /* remove all items from the queue */ | |
2176 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2177 | dprintk("vino_capture_stop(): " | |
2178 | "vino_queue_get_incoming() failed\n"); | |
2179 | goto out; | |
2180 | } | |
2181 | while (incoming > 0) { | |
2182 | vino_queue_transfer(&vcs->fb_queue); | |
2183 | ||
2184 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2185 | dprintk("vino_capture_stop(): " | |
2186 | "vino_queue_get_incoming() failed\n"); | |
2187 | goto out; | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2192 | dprintk("vino_capture_stop(): " | |
2193 | "vino_queue_get_outgoing() failed\n"); | |
2194 | goto out; | |
2195 | } | |
2196 | while (outgoing > 0) { | |
2197 | vino_queue_remove(&vcs->fb_queue, &id); | |
2198 | ||
2199 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2200 | dprintk("vino_capture_stop(): " | |
2201 | "vino_queue_get_outgoing() failed\n"); | |
2202 | goto out; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | out: | |
2207 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2208 | } | |
2209 | ||
a637a114 | 2210 | #if 0 |
d203a7ec RB |
2211 | static int vino_capture_failed(struct vino_channel_settings *vcs) |
2212 | { | |
2213 | struct vino_framebuffer *fb; | |
2214 | unsigned long flags; | |
2215 | unsigned int i; | |
2216 | int ret; | |
2217 | ||
2218 | dprintk("vino_capture_failed():\n"); | |
2219 | ||
2220 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2221 | ||
2222 | vino_dma_stop(vcs); | |
2223 | vino_clear_interrupt(vcs); | |
2224 | ||
2225 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2226 | ||
2227 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); | |
2228 | if (ret == VINO_QUEUE_ERROR) { | |
2229 | dprintk("vino_queue_get_incoming() failed\n"); | |
2230 | return -EINVAL; | |
2231 | } | |
2232 | if (i == 0) { | |
2233 | /* no buffers to process */ | |
2234 | return 0; | |
2235 | } | |
2236 | ||
2237 | fb = vino_queue_peek(&vcs->fb_queue, &i); | |
2238 | if (fb == NULL) { | |
2239 | dprintk("vino_queue_peek() failed\n"); | |
2240 | return -EINVAL; | |
2241 | } | |
2242 | ||
2243 | spin_lock_irqsave(&fb->state_lock, flags); | |
2244 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { | |
2245 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2246 | vino_queue_transfer(&vcs->fb_queue); | |
2247 | vino_queue_remove(&vcs->fb_queue, &i); | |
2248 | /* we should actually discard the newest frame, | |
2249 | * but who cares ... */ | |
2250 | } | |
2251 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2252 | ||
2253 | return 0; | |
2254 | } | |
a637a114 LM |
2255 | #endif |
2256 | ||
2257 | static void vino_skip_frame(struct vino_channel_settings *vcs) | |
2258 | { | |
2259 | struct vino_framebuffer *fb; | |
2260 | unsigned long flags; | |
2261 | unsigned int id; | |
2262 | ||
2263 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2264 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2265 | if (!fb) { | |
2266 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2267 | dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); | |
2268 | return; | |
2269 | } | |
2270 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2271 | ||
2272 | spin_lock_irqsave(&fb->state_lock, flags); | |
2273 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2274 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2275 | ||
2276 | vino_capture_next(vcs, 0); | |
2277 | } | |
d203a7ec | 2278 | |
a637a114 | 2279 | static void vino_frame_done(struct vino_channel_settings *vcs) |
d203a7ec RB |
2280 | { |
2281 | struct vino_framebuffer *fb; | |
2282 | unsigned long flags; | |
2283 | ||
2284 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2285 | fb = vino_queue_transfer(&vcs->fb_queue); | |
2286 | if (!fb) { | |
2287 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2288 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); | |
2289 | return; | |
2290 | } | |
2291 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2292 | ||
a637a114 LM |
2293 | fb->frame_counter = vcs->int_data.frame_counter; |
2294 | memcpy(&fb->timestamp, &vcs->int_data.timestamp, | |
2295 | sizeof(struct timeval)); | |
d203a7ec RB |
2296 | |
2297 | spin_lock_irqsave(&fb->state_lock, flags); | |
2298 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
2299 | fb->state = VINO_FRAMEBUFFER_READY; | |
2300 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2301 | ||
2302 | wake_up(&vcs->fb_queue.frame_wait_queue); | |
2303 | ||
2304 | vino_capture_next(vcs, 0); | |
2305 | } | |
2306 | ||
a637a114 LM |
2307 | static void vino_capture_tasklet(unsigned long channel) { |
2308 | struct vino_channel_settings *vcs; | |
2309 | ||
2310 | vcs = (channel == VINO_CHANNEL_A) | |
2311 | ? &vino_drvdata->a : &vino_drvdata->b; | |
2312 | ||
2313 | if (vcs->int_data.skip) | |
2314 | vcs->int_data.skip_count++; | |
2315 | ||
2316 | if (vcs->int_data.skip && (vcs->int_data.skip_count | |
2317 | <= VINO_MAX_FRAME_SKIP_COUNT)) { | |
2318 | vino_skip_frame(vcs); | |
2319 | } else { | |
2320 | vcs->int_data.skip_count = 0; | |
2321 | vino_frame_done(vcs); | |
2322 | } | |
2323 | } | |
2324 | ||
7d12e780 | 2325 | static irqreturn_t vino_interrupt(int irq, void *dev_id) |
d203a7ec | 2326 | { |
a637a114 | 2327 | u32 ctrl, intr; |
d203a7ec | 2328 | unsigned int fc_a, fc_b; |
a637a114 LM |
2329 | int handled_a = 0, skip_a = 0, done_a = 0; |
2330 | int handled_b = 0, skip_b = 0, done_b = 0; | |
2331 | ||
2332 | #ifdef VINO_DEBUG_INT | |
2333 | int loop = 0; | |
2334 | unsigned int line_count = vino->a.line_count, | |
2335 | page_index = vino->a.page_index, | |
2336 | field_counter = vino->a.field_counter, | |
2337 | start_desc_tbl = vino->a.start_desc_tbl, | |
2338 | next_4_desc = vino->a.next_4_desc; | |
2339 | unsigned int line_count_2, | |
2340 | page_index_2, | |
2341 | field_counter_2, | |
2342 | start_desc_tbl_2, | |
2343 | next_4_desc_2; | |
2344 | #endif | |
d203a7ec RB |
2345 | |
2346 | spin_lock(&vino_drvdata->vino_lock); | |
2347 | ||
a637a114 LM |
2348 | while ((intr = vino->intr_status)) { |
2349 | fc_a = vino->a.field_counter >> 1; | |
2350 | fc_b = vino->b.field_counter >> 1; | |
2351 | ||
2352 | /* handle error-interrupts in some special way ? | |
2353 | * --> skips frames */ | |
2354 | if (intr & VINO_INTSTAT_A) { | |
2355 | if (intr & VINO_INTSTAT_A_EOF) { | |
2356 | vino_drvdata->a.field++; | |
2357 | if (vino_drvdata->a.field > 1) { | |
2358 | vino_dma_stop(&vino_drvdata->a); | |
2359 | vino_clear_interrupt(&vino_drvdata->a); | |
2360 | vino_drvdata->a.field = 0; | |
2361 | done_a = 1; | |
2362 | } else { | |
2363 | if (vino->a.page_index | |
2364 | != vino_drvdata->a.line_size) { | |
2365 | vino->a.line_count = 0; | |
2366 | vino->a.page_index = | |
2367 | vino_drvdata-> | |
2368 | a.line_size; | |
2369 | vino->a.next_4_desc = | |
2370 | vino->a.start_desc_tbl; | |
2371 | } | |
2372 | } | |
2373 | dprintk("channel A end-of-field " | |
2374 | "interrupt: %04x\n", intr); | |
2375 | } else { | |
d203a7ec RB |
2376 | vino_dma_stop(&vino_drvdata->a); |
2377 | vino_clear_interrupt(&vino_drvdata->a); | |
2378 | vino_drvdata->a.field = 0; | |
a637a114 LM |
2379 | skip_a = 1; |
2380 | dprintk("channel A error interrupt: %04x\n", | |
2381 | intr); | |
d203a7ec | 2382 | } |
a637a114 LM |
2383 | |
2384 | #ifdef VINO_DEBUG_INT | |
2385 | line_count_2 = vino->a.line_count; | |
2386 | page_index_2 = vino->a.page_index; | |
2387 | field_counter_2 = vino->a.field_counter; | |
2388 | start_desc_tbl_2 = vino->a.start_desc_tbl; | |
2389 | next_4_desc_2 = vino->a.next_4_desc; | |
2390 | ||
2391 | printk("intr = %04x, loop = %d, field = %d\n", | |
2392 | intr, loop, vino_drvdata->a.field); | |
2393 | printk("1- line count = %04d, page index = %04d, " | |
2394 | "start = %08x, next = %08x\n" | |
2395 | " fieldc = %d, framec = %d\n", | |
2396 | line_count, page_index, start_desc_tbl, | |
2397 | next_4_desc, field_counter, fc_a); | |
2398 | printk("12-line count = %04d, page index = %04d, " | |
2399 | " start = %08x, next = %08x\n", | |
2400 | line_count_2, page_index_2, start_desc_tbl_2, | |
2401 | next_4_desc_2); | |
2402 | ||
2403 | if (done_a) | |
2404 | printk("\n"); | |
2405 | #endif | |
d203a7ec | 2406 | } |
a637a114 LM |
2407 | |
2408 | if (intr & VINO_INTSTAT_B) { | |
2409 | if (intr & VINO_INTSTAT_B_EOF) { | |
2410 | vino_drvdata->b.field++; | |
2411 | if (vino_drvdata->b.field > 1) { | |
2412 | vino_dma_stop(&vino_drvdata->b); | |
2413 | vino_clear_interrupt(&vino_drvdata->b); | |
2414 | vino_drvdata->b.field = 0; | |
2415 | done_b = 1; | |
2416 | } | |
2417 | dprintk("channel B end-of-field " | |
2418 | "interrupt: %04x\n", intr); | |
2419 | } else { | |
d203a7ec RB |
2420 | vino_dma_stop(&vino_drvdata->b); |
2421 | vino_clear_interrupt(&vino_drvdata->b); | |
2422 | vino_drvdata->b.field = 0; | |
a637a114 LM |
2423 | skip_b = 1; |
2424 | dprintk("channel B error interrupt: %04x\n", | |
2425 | intr); | |
d203a7ec | 2426 | } |
d203a7ec | 2427 | } |
d203a7ec | 2428 | |
a637a114 LM |
2429 | /* Always remember to clear interrupt status. |
2430 | * Disable VINO interrupts while we do this. */ | |
2431 | ctrl = vino->control; | |
2432 | vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); | |
2433 | vino->intr_status = ~intr; | |
2434 | vino->control = ctrl; | |
d203a7ec | 2435 | |
a637a114 | 2436 | spin_unlock(&vino_drvdata->vino_lock); |
d203a7ec | 2437 | |
a637a114 LM |
2438 | if ((!handled_a) && (done_a || skip_a)) { |
2439 | if (!skip_a) { | |
2440 | do_gettimeofday(&vino_drvdata-> | |
2441 | a.int_data.timestamp); | |
2442 | vino_drvdata->a.int_data.frame_counter = fc_a; | |
2443 | } | |
2444 | vino_drvdata->a.int_data.skip = skip_a; | |
2445 | ||
2446 | dprintk("channel A %s, interrupt: %d\n", | |
2447 | skip_a ? "skipping frame" : "frame done", | |
2448 | intr); | |
2449 | tasklet_hi_schedule(&vino_tasklet_a); | |
2450 | handled_a = 1; | |
2451 | } | |
2452 | ||
2453 | if ((!handled_b) && (done_b || skip_b)) { | |
2454 | if (!skip_b) { | |
2455 | do_gettimeofday(&vino_drvdata-> | |
2456 | b.int_data.timestamp); | |
2457 | vino_drvdata->b.int_data.frame_counter = fc_b; | |
2458 | } | |
2459 | vino_drvdata->b.int_data.skip = skip_b; | |
2460 | ||
2461 | dprintk("channel B %s, interrupt: %d\n", | |
2462 | skip_b ? "skipping frame" : "frame done", | |
2463 | intr); | |
2464 | tasklet_hi_schedule(&vino_tasklet_b); | |
2465 | handled_b = 1; | |
2466 | } | |
2467 | ||
2468 | #ifdef VINO_DEBUG_INT | |
2469 | loop++; | |
2470 | #endif | |
2471 | spin_lock(&vino_drvdata->vino_lock); | |
d203a7ec RB |
2472 | } |
2473 | ||
a637a114 LM |
2474 | spin_unlock(&vino_drvdata->vino_lock); |
2475 | ||
d203a7ec RB |
2476 | return IRQ_HANDLED; |
2477 | } | |
2478 | ||
2479 | /* VINO video input management */ | |
2480 | ||
2481 | static int vino_get_saa7191_input(int input) | |
2482 | { | |
2483 | switch (input) { | |
2484 | case VINO_INPUT_COMPOSITE: | |
2485 | return SAA7191_INPUT_COMPOSITE; | |
2486 | case VINO_INPUT_SVIDEO: | |
2487 | return SAA7191_INPUT_SVIDEO; | |
2488 | default: | |
2489 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " | |
2490 | "invalid input!\n"); | |
2491 | return -1; | |
2492 | } | |
2493 | } | |
2494 | ||
a637a114 | 2495 | static int vino_get_saa7191_norm(unsigned int data_norm) |
d203a7ec | 2496 | { |
a637a114 | 2497 | switch (data_norm) { |
d203a7ec RB |
2498 | case VINO_DATA_NORM_AUTO: |
2499 | return SAA7191_NORM_AUTO; | |
a637a114 LM |
2500 | case VINO_DATA_NORM_AUTO_EXT: |
2501 | return SAA7191_NORM_AUTO_EXT; | |
d203a7ec RB |
2502 | case VINO_DATA_NORM_PAL: |
2503 | return SAA7191_NORM_PAL; | |
2504 | case VINO_DATA_NORM_NTSC: | |
2505 | return SAA7191_NORM_NTSC; | |
2506 | case VINO_DATA_NORM_SECAM: | |
2507 | return SAA7191_NORM_SECAM; | |
2508 | default: | |
2509 | printk(KERN_ERR "VINO: vino_get_saa7191_norm(): " | |
2510 | "invalid norm!\n"); | |
2511 | return -1; | |
2512 | } | |
2513 | } | |
2514 | ||
a637a114 LM |
2515 | static int vino_get_from_saa7191_norm(int saa7191_norm) |
2516 | { | |
2517 | switch (saa7191_norm) { | |
2518 | case SAA7191_NORM_PAL: | |
2519 | return VINO_DATA_NORM_PAL; | |
2520 | case SAA7191_NORM_NTSC: | |
2521 | return VINO_DATA_NORM_NTSC; | |
2522 | case SAA7191_NORM_SECAM: | |
2523 | return VINO_DATA_NORM_SECAM; | |
2524 | default: | |
2525 | printk(KERN_ERR "VINO: vino_get_from_saa7191_norm(): " | |
2526 | "invalid norm!\n"); | |
2527 | return VINO_DATA_NORM_NONE; | |
2528 | } | |
2529 | } | |
2530 | ||
2531 | static int vino_saa7191_set_norm(unsigned int *data_norm) | |
2532 | { | |
2533 | int saa7191_norm, new_data_norm; | |
2534 | int err = 0; | |
2535 | ||
2536 | saa7191_norm = vino_get_saa7191_norm(*data_norm); | |
2537 | ||
2538 | err = i2c_decoder_command(DECODER_SAA7191_SET_NORM, | |
2539 | &saa7191_norm); | |
2540 | if (err) | |
2541 | goto out; | |
2542 | ||
2543 | if ((*data_norm == VINO_DATA_NORM_AUTO) | |
2544 | || (*data_norm == VINO_DATA_NORM_AUTO_EXT)) { | |
2545 | struct saa7191_status status; | |
2546 | ||
2547 | err = i2c_decoder_command(DECODER_SAA7191_GET_STATUS, | |
2548 | &status); | |
2549 | if (err) | |
2550 | goto out; | |
2551 | ||
2552 | new_data_norm = | |
2553 | vino_get_from_saa7191_norm(status.norm); | |
2554 | if (new_data_norm == VINO_DATA_NORM_NONE) { | |
2555 | err = -EINVAL; | |
2556 | goto out; | |
2557 | } | |
2558 | ||
2559 | *data_norm = (unsigned int)new_data_norm; | |
2560 | } | |
2561 | ||
2562 | out: | |
2563 | return err; | |
2564 | } | |
2565 | ||
d203a7ec RB |
2566 | /* execute with input_lock locked */ |
2567 | static int vino_is_input_owner(struct vino_channel_settings *vcs) | |
2568 | { | |
2569 | switch(vcs->input) { | |
2570 | case VINO_INPUT_COMPOSITE: | |
2571 | case VINO_INPUT_SVIDEO: | |
2572 | return (vino_drvdata->decoder.owner == vcs->channel); | |
2573 | case VINO_INPUT_D1: | |
2574 | return (vino_drvdata->camera.owner == vcs->channel); | |
2575 | default: | |
2576 | return 0; | |
2577 | } | |
2578 | } | |
2579 | ||
2580 | static int vino_acquire_input(struct vino_channel_settings *vcs) | |
2581 | { | |
a637a114 | 2582 | unsigned long flags; |
d203a7ec RB |
2583 | int ret = 0; |
2584 | ||
2585 | dprintk("vino_acquire_input():\n"); | |
2586 | ||
a637a114 | 2587 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2588 | |
2589 | /* First try D1 and then SAA7191 */ | |
2590 | if (vino_drvdata->camera.driver | |
2591 | && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { | |
e48d3319 | 2592 | i2c_use_client(vino_drvdata->camera.driver); |
d203a7ec RB |
2593 | vino_drvdata->camera.owner = vcs->channel; |
2594 | vcs->input = VINO_INPUT_D1; | |
2595 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2596 | } else if (vino_drvdata->decoder.driver | |
2597 | && (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) { | |
a637a114 | 2598 | int input, data_norm; |
d203a7ec | 2599 | int saa7191_input; |
d203a7ec | 2600 | |
e48d3319 | 2601 | i2c_use_client(vino_drvdata->decoder.driver); |
a637a114 LM |
2602 | input = VINO_INPUT_COMPOSITE; |
2603 | ||
2604 | saa7191_input = vino_get_saa7191_input(input); | |
2605 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2606 | &saa7191_input); | |
2607 | if (ret) { | |
2608 | ret = -EINVAL; | |
2609 | goto out; | |
2610 | } | |
2611 | ||
2612 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec | 2613 | |
a637a114 LM |
2614 | /* Don't hold spinlocks while auto-detecting norm |
2615 | * as it may take a while... */ | |
d203a7ec | 2616 | |
a637a114 LM |
2617 | data_norm = VINO_DATA_NORM_AUTO_EXT; |
2618 | ||
2619 | ret = vino_saa7191_set_norm(&data_norm); | |
2620 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2621 | data_norm = VINO_DATA_NORM_PAL; | |
2622 | ret = vino_saa7191_set_norm(&data_norm); | |
2623 | } | |
2624 | ||
2625 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
2626 | ||
2627 | if (ret) { | |
2628 | ret = -EINVAL; | |
2629 | goto out; | |
2630 | } | |
2631 | ||
2632 | vino_drvdata->decoder.owner = vcs->channel; | |
2633 | ||
2634 | vcs->input = input; | |
2635 | vcs->data_norm = data_norm; | |
d203a7ec RB |
2636 | } else { |
2637 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? | |
2638 | vino_drvdata->b.input : vino_drvdata->a.input; | |
2639 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? | |
2640 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; | |
2641 | } | |
2642 | ||
2643 | if (vcs->input == VINO_INPUT_NONE) { | |
2644 | ret = -ENODEV; | |
2645 | goto out; | |
2646 | } | |
2647 | ||
a637a114 LM |
2648 | vino_set_default_clipping(vcs); |
2649 | vino_set_default_scaling(vcs); | |
2650 | vino_set_default_framerate(vcs); | |
d203a7ec RB |
2651 | |
2652 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); | |
2653 | ||
2654 | out: | |
a637a114 | 2655 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2656 | |
2657 | return ret; | |
2658 | } | |
2659 | ||
2660 | static int vino_set_input(struct vino_channel_settings *vcs, int input) | |
2661 | { | |
2662 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2663 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2664 | unsigned long flags; |
d203a7ec RB |
2665 | int ret = 0; |
2666 | ||
2667 | dprintk("vino_set_input():\n"); | |
2668 | ||
a637a114 | 2669 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2670 | |
2671 | if (vcs->input == input) | |
2672 | goto out; | |
2673 | ||
a637a114 | 2674 | switch (input) { |
d203a7ec RB |
2675 | case VINO_INPUT_COMPOSITE: |
2676 | case VINO_INPUT_SVIDEO: | |
2677 | if (!vino_drvdata->decoder.driver) { | |
2678 | ret = -EINVAL; | |
2679 | goto out; | |
2680 | } | |
2681 | ||
2682 | if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { | |
e48d3319 | 2683 | i2c_use_client(vino_drvdata->decoder.driver); |
d203a7ec RB |
2684 | vino_drvdata->decoder.owner = vcs->channel; |
2685 | } | |
2686 | ||
2687 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
a637a114 | 2688 | int data_norm; |
d203a7ec | 2689 | int saa7191_input; |
d203a7ec | 2690 | |
a637a114 LM |
2691 | saa7191_input = vino_get_saa7191_input(input); |
2692 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2693 | &saa7191_input); | |
2694 | if (ret) { | |
2695 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2696 | ret = -EINVAL; | |
2697 | goto out; | |
2698 | } | |
2699 | ||
2700 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
2701 | ||
2702 | /* Don't hold spinlocks while auto-detecting norm | |
2703 | * as it may take a while... */ | |
2704 | ||
2705 | data_norm = VINO_DATA_NORM_AUTO_EXT; | |
2706 | ||
2707 | ret = vino_saa7191_set_norm(&data_norm); | |
2708 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2709 | data_norm = VINO_DATA_NORM_PAL; | |
2710 | ret = vino_saa7191_set_norm(&data_norm); | |
2711 | } | |
d203a7ec | 2712 | |
a637a114 LM |
2713 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
2714 | ||
2715 | if (ret) { | |
2716 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2717 | ret = -EINVAL; | |
2718 | goto out; | |
2719 | } | |
2720 | ||
2721 | vcs->input = input; | |
2722 | vcs->data_norm = data_norm; | |
d203a7ec | 2723 | } else { |
a637a114 | 2724 | if (input != vcs2->input) { |
d203a7ec RB |
2725 | ret = -EBUSY; |
2726 | goto out; | |
2727 | } | |
2728 | ||
2729 | vcs->input = input; | |
2730 | vcs->data_norm = vcs2->data_norm; | |
2731 | } | |
2732 | ||
2733 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2734 | /* Transfer the ownership or release the input */ | |
2735 | if (vcs2->input == VINO_INPUT_D1) { | |
2736 | vino_drvdata->camera.owner = vcs2->channel; | |
2737 | } else { | |
2738 | i2c_release_client(vino_drvdata-> | |
2739 | camera.driver); | |
2740 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2741 | } | |
2742 | } | |
2743 | break; | |
2744 | case VINO_INPUT_D1: | |
2745 | if (!vino_drvdata->camera.driver) { | |
2746 | ret = -EINVAL; | |
2747 | goto out; | |
2748 | } | |
2749 | ||
2750 | if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { | |
e48d3319 | 2751 | i2c_use_client(vino_drvdata->camera.driver); |
d203a7ec RB |
2752 | vino_drvdata->camera.owner = vcs->channel; |
2753 | } | |
2754 | ||
2755 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
2756 | /* Transfer the ownership or release the input */ | |
2757 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2758 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2759 | vino_drvdata->decoder.owner = vcs2->channel; | |
2760 | } else { | |
2761 | i2c_release_client(vino_drvdata-> | |
2762 | decoder.driver); | |
2763 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2764 | } | |
2765 | } | |
2766 | ||
2767 | vcs->input = input; | |
2768 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2769 | break; | |
2770 | default: | |
2771 | ret = -EINVAL; | |
2772 | goto out; | |
2773 | } | |
2774 | ||
2775 | vino_set_default_clipping(vcs); | |
a637a114 | 2776 | vino_set_default_scaling(vcs); |
d203a7ec RB |
2777 | vino_set_default_framerate(vcs); |
2778 | ||
2779 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); | |
2780 | ||
2781 | out: | |
a637a114 | 2782 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2783 | |
2784 | return ret; | |
2785 | } | |
2786 | ||
2787 | static void vino_release_input(struct vino_channel_settings *vcs) | |
2788 | { | |
2789 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2790 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2791 | unsigned long flags; |
d203a7ec RB |
2792 | |
2793 | dprintk("vino_release_input():\n"); | |
2794 | ||
a637a114 | 2795 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2796 | |
2797 | /* Release ownership of the channel | |
2798 | * and if the other channel takes input from | |
2799 | * the same source, transfer the ownership */ | |
2800 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2801 | if (vcs2->input == VINO_INPUT_D1) { | |
2802 | vino_drvdata->camera.owner = vcs2->channel; | |
2803 | } else { | |
2804 | i2c_release_client(vino_drvdata->camera.driver); | |
2805 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2806 | } | |
2807 | } else if (vino_drvdata->decoder.owner == vcs->channel) { | |
2808 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2809 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2810 | vino_drvdata->decoder.owner = vcs2->channel; | |
2811 | } else { | |
2812 | i2c_release_client(vino_drvdata->decoder.driver); | |
2813 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2814 | } | |
2815 | } | |
2816 | vcs->input = VINO_INPUT_NONE; | |
2817 | ||
a637a114 | 2818 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2819 | } |
2820 | ||
2821 | /* execute with input_lock locked */ | |
2822 | static int vino_set_data_norm(struct vino_channel_settings *vcs, | |
a637a114 LM |
2823 | unsigned int data_norm, |
2824 | unsigned long *flags) | |
d203a7ec | 2825 | { |
a637a114 LM |
2826 | int err = 0; |
2827 | ||
2828 | if (data_norm == vcs->data_norm) | |
2829 | return 0; | |
d203a7ec RB |
2830 | |
2831 | switch (vcs->input) { | |
2832 | case VINO_INPUT_D1: | |
2833 | /* only one "norm" supported */ | |
a637a114 LM |
2834 | if ((data_norm != VINO_DATA_NORM_D1) |
2835 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2836 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
d203a7ec RB |
2837 | return -EINVAL; |
2838 | break; | |
2839 | case VINO_INPUT_COMPOSITE: | |
a637a114 LM |
2840 | case VINO_INPUT_SVIDEO: { |
2841 | if ((data_norm != VINO_DATA_NORM_PAL) | |
2842 | && (data_norm != VINO_DATA_NORM_NTSC) | |
2843 | && (data_norm != VINO_DATA_NORM_SECAM) | |
2844 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2845 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
2846 | return -EINVAL; | |
d203a7ec | 2847 | |
a637a114 LM |
2848 | spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); |
2849 | ||
2850 | /* Don't hold spinlocks while setting norm | |
2851 | * as it may take a while... */ | |
2852 | ||
2853 | err = vino_saa7191_set_norm(&data_norm); | |
2854 | ||
2855 | spin_lock_irqsave(&vino_drvdata->input_lock, *flags); | |
2856 | ||
2857 | if (err) | |
2858 | goto out; | |
d203a7ec | 2859 | |
d203a7ec | 2860 | vcs->data_norm = data_norm; |
a637a114 LM |
2861 | |
2862 | vino_set_default_clipping(vcs); | |
2863 | vino_set_default_scaling(vcs); | |
2864 | vino_set_default_framerate(vcs); | |
d203a7ec | 2865 | break; |
a637a114 | 2866 | } |
d203a7ec RB |
2867 | default: |
2868 | return -EINVAL; | |
2869 | } | |
2870 | ||
a637a114 LM |
2871 | out: |
2872 | return err; | |
d203a7ec RB |
2873 | } |
2874 | ||
2875 | /* V4L2 helper functions */ | |
2876 | ||
2877 | static int vino_find_data_format(__u32 pixelformat) | |
2878 | { | |
2879 | int i; | |
2880 | ||
2881 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { | |
2882 | if (vino_data_formats[i].pixelformat == pixelformat) | |
2883 | return i; | |
2884 | } | |
2885 | ||
2886 | return VINO_DATA_FMT_NONE; | |
2887 | } | |
2888 | ||
2889 | static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index) | |
2890 | { | |
2891 | int data_norm = VINO_DATA_NORM_NONE; | |
a637a114 | 2892 | unsigned long flags; |
d203a7ec | 2893 | |
a637a114 | 2894 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2895 | switch(vcs->input) { |
2896 | case VINO_INPUT_COMPOSITE: | |
2897 | case VINO_INPUT_SVIDEO: | |
2898 | if (index == 0) { | |
2899 | data_norm = VINO_DATA_NORM_PAL; | |
2900 | } else if (index == 1) { | |
2901 | data_norm = VINO_DATA_NORM_NTSC; | |
2902 | } else if (index == 2) { | |
2903 | data_norm = VINO_DATA_NORM_SECAM; | |
2904 | } | |
2905 | break; | |
2906 | case VINO_INPUT_D1: | |
2907 | if (index == 0) { | |
2908 | data_norm = VINO_DATA_NORM_D1; | |
2909 | } | |
2910 | break; | |
2911 | } | |
a637a114 | 2912 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2913 | |
2914 | return data_norm; | |
2915 | } | |
2916 | ||
2917 | static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index) | |
2918 | { | |
2919 | int input = VINO_INPUT_NONE; | |
a637a114 | 2920 | unsigned long flags; |
d203a7ec | 2921 | |
a637a114 | 2922 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2923 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { |
2924 | switch (index) { | |
2925 | case 0: | |
2926 | input = VINO_INPUT_COMPOSITE; | |
2927 | break; | |
2928 | case 1: | |
2929 | input = VINO_INPUT_SVIDEO; | |
2930 | break; | |
2931 | case 2: | |
2932 | input = VINO_INPUT_D1; | |
2933 | break; | |
2934 | } | |
2935 | } else if (vino_drvdata->decoder.driver) { | |
2936 | switch (index) { | |
2937 | case 0: | |
2938 | input = VINO_INPUT_COMPOSITE; | |
2939 | break; | |
2940 | case 1: | |
2941 | input = VINO_INPUT_SVIDEO; | |
2942 | break; | |
2943 | } | |
2944 | } else if (vino_drvdata->camera.driver) { | |
2945 | switch (index) { | |
2946 | case 0: | |
2947 | input = VINO_INPUT_D1; | |
2948 | break; | |
2949 | } | |
2950 | } | |
a637a114 | 2951 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2952 | |
2953 | return input; | |
2954 | } | |
2955 | ||
2956 | /* execute with input_lock locked */ | |
2957 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) | |
2958 | { | |
2959 | __u32 index = 0; | |
2960 | // FIXME: detect when no inputs available | |
2961 | ||
2962 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { | |
2963 | switch (vcs->input) { | |
2964 | case VINO_INPUT_COMPOSITE: | |
2965 | index = 0; | |
2966 | break; | |
2967 | case VINO_INPUT_SVIDEO: | |
2968 | index = 1; | |
2969 | break; | |
2970 | case VINO_INPUT_D1: | |
2971 | index = 2; | |
2972 | break; | |
2973 | } | |
2974 | } else if (vino_drvdata->decoder.driver) { | |
2975 | switch (vcs->input) { | |
2976 | case VINO_INPUT_COMPOSITE: | |
2977 | index = 0; | |
2978 | break; | |
2979 | case VINO_INPUT_SVIDEO: | |
2980 | index = 1; | |
2981 | break; | |
2982 | } | |
2983 | } else if (vino_drvdata->camera.driver) { | |
2984 | switch (vcs->input) { | |
2985 | case VINO_INPUT_D1: | |
2986 | index = 0; | |
2987 | break; | |
2988 | } | |
2989 | } | |
2990 | ||
2991 | return index; | |
2992 | } | |
2993 | ||
2994 | /* V4L2 ioctls */ | |
2995 | ||
2996 | static void vino_v4l2_querycap(struct v4l2_capability *cap) | |
2997 | { | |
2998 | memset(cap, 0, sizeof(struct v4l2_capability)); | |
2999 | ||
3000 | strcpy(cap->driver, vino_driver_name); | |
3001 | strcpy(cap->card, vino_driver_description); | |
3002 | strcpy(cap->bus_info, vino_bus_name); | |
3003 | cap->version = VINO_VERSION_CODE; | |
3004 | cap->capabilities = | |
3005 | V4L2_CAP_VIDEO_CAPTURE | | |
3006 | V4L2_CAP_STREAMING; | |
3007 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE | |
3008 | } | |
3009 | ||
3010 | static int vino_v4l2_enuminput(struct vino_channel_settings *vcs, | |
3011 | struct v4l2_input *i) | |
3012 | { | |
3013 | __u32 index = i->index; | |
3014 | int input; | |
3015 | dprintk("requested index = %d\n", index); | |
3016 | ||
3017 | input = vino_enum_input(vcs, index); | |
3018 | if (input == VINO_INPUT_NONE) | |
3019 | return -EINVAL; | |
3020 | ||
3021 | memset(i, 0, sizeof(struct v4l2_input)); | |
3022 | ||
3023 | i->index = index; | |
3024 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
3025 | i->std = vino_inputs[input].std; | |
3026 | strcpy(i->name, vino_inputs[input].name); | |
3027 | ||
3028 | if ((input == VINO_INPUT_COMPOSITE) | |
3029 | || (input == VINO_INPUT_SVIDEO)) { | |
3030 | struct saa7191_status status; | |
3031 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3032 | i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL; | |
3033 | i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR; | |
3034 | } | |
3035 | ||
3036 | return 0; | |
3037 | } | |
3038 | ||
3039 | static int vino_v4l2_g_input(struct vino_channel_settings *vcs, | |
a637a114 | 3040 | unsigned int *i) |
d203a7ec RB |
3041 | { |
3042 | __u32 index; | |
3043 | int input; | |
a637a114 | 3044 | unsigned long flags; |
d203a7ec | 3045 | |
a637a114 | 3046 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3047 | input = vcs->input; |
3048 | index = vino_find_input_index(vcs); | |
a637a114 | 3049 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3050 | |
3051 | dprintk("input = %d\n", input); | |
3052 | ||
3053 | if (input == VINO_INPUT_NONE) { | |
3054 | return -EINVAL; | |
3055 | } | |
3056 | ||
a637a114 | 3057 | *i = index; |
d203a7ec RB |
3058 | |
3059 | return 0; | |
3060 | } | |
3061 | ||
3062 | static int vino_v4l2_s_input(struct vino_channel_settings *vcs, | |
a637a114 | 3063 | unsigned int *i) |
d203a7ec RB |
3064 | { |
3065 | int input; | |
a637a114 | 3066 | dprintk("requested input = %d\n", *i); |
d203a7ec | 3067 | |
a637a114 | 3068 | input = vino_enum_input(vcs, *i); |
d203a7ec RB |
3069 | if (input == VINO_INPUT_NONE) |
3070 | return -EINVAL; | |
3071 | ||
3072 | return vino_set_input(vcs, input); | |
3073 | } | |
3074 | ||
3075 | static int vino_v4l2_enumstd(struct vino_channel_settings *vcs, | |
3076 | struct v4l2_standard *s) | |
3077 | { | |
3078 | int index = s->index; | |
a637a114 LM |
3079 | int data_norm; |
3080 | ||
3081 | data_norm = vino_enum_data_norm(vcs, index); | |
d203a7ec RB |
3082 | dprintk("standard index = %d\n", index); |
3083 | ||
3084 | if (data_norm == VINO_DATA_NORM_NONE) | |
3085 | return -EINVAL; | |
3086 | ||
3087 | dprintk("standard name = %s\n", | |
3088 | vino_data_norms[data_norm].description); | |
3089 | ||
3090 | memset(s, 0, sizeof(struct v4l2_standard)); | |
3091 | s->index = index; | |
3092 | ||
3093 | s->id = vino_data_norms[data_norm].std; | |
3094 | s->frameperiod.numerator = 1; | |
3095 | s->frameperiod.denominator = | |
3096 | vino_data_norms[data_norm].fps_max; | |
3097 | s->framelines = | |
3098 | vino_data_norms[data_norm].framelines; | |
3099 | strcpy(s->name, | |
3100 | vino_data_norms[data_norm].description); | |
3101 | ||
3102 | return 0; | |
3103 | } | |
3104 | ||
a637a114 LM |
3105 | static int vino_v4l2_querystd(struct vino_channel_settings *vcs, |
3106 | v4l2_std_id *std) | |
3107 | { | |
3108 | unsigned long flags; | |
3109 | int err = 0; | |
3110 | ||
3111 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3112 | ||
3113 | switch (vcs->input) { | |
3114 | case VINO_INPUT_D1: | |
3115 | *std = vino_inputs[vcs->input].std; | |
3116 | break; | |
3117 | case VINO_INPUT_COMPOSITE: | |
3118 | case VINO_INPUT_SVIDEO: { | |
3119 | struct saa7191_status status; | |
3120 | ||
3121 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3122 | ||
3123 | if (status.signal) { | |
3124 | if (status.signal_60hz) { | |
3125 | *std = V4L2_STD_NTSC; | |
3126 | } else { | |
3127 | *std = V4L2_STD_PAL | V4L2_STD_SECAM; | |
3128 | } | |
3129 | } else { | |
3130 | *std = vino_inputs[vcs->input].std; | |
3131 | } | |
3132 | break; | |
3133 | } | |
3134 | default: | |
3135 | err = -EINVAL; | |
3136 | } | |
3137 | ||
3138 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
3139 | ||
3140 | return err; | |
3141 | } | |
3142 | ||
d203a7ec RB |
3143 | static int vino_v4l2_g_std(struct vino_channel_settings *vcs, |
3144 | v4l2_std_id *std) | |
3145 | { | |
a637a114 LM |
3146 | unsigned long flags; |
3147 | ||
3148 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3149 | ||
d203a7ec | 3150 | *std = vino_data_norms[vcs->data_norm].std; |
a637a114 LM |
3151 | dprintk("current standard = %d\n", vcs->data_norm); |
3152 | ||
3153 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3154 | |
3155 | return 0; | |
3156 | } | |
3157 | ||
3158 | static int vino_v4l2_s_std(struct vino_channel_settings *vcs, | |
3159 | v4l2_std_id *std) | |
3160 | { | |
a637a114 | 3161 | unsigned long flags; |
d203a7ec RB |
3162 | int ret = 0; |
3163 | ||
a637a114 LM |
3164 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3165 | ||
3166 | if (!vino_is_input_owner(vcs)) { | |
3167 | ret = -EBUSY; | |
3168 | goto out; | |
3169 | } | |
d203a7ec RB |
3170 | |
3171 | /* check if the standard is valid for the current input */ | |
a637a114 | 3172 | if ((*std) & vino_inputs[vcs->input].std) { |
d203a7ec RB |
3173 | dprintk("standard accepted\n"); |
3174 | ||
3175 | /* change the video norm for SAA7191 | |
3176 | * and accept NTSC for D1 (do nothing) */ | |
3177 | ||
3178 | if (vcs->input == VINO_INPUT_D1) | |
3179 | goto out; | |
3180 | ||
a637a114 LM |
3181 | if (((*std) & V4L2_STD_PAL) |
3182 | && ((*std) & V4L2_STD_NTSC) | |
3183 | && ((*std) & V4L2_STD_SECAM)) { | |
3184 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_AUTO_EXT, | |
3185 | &flags); | |
3186 | } else if ((*std) & V4L2_STD_PAL) { | |
3187 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, | |
3188 | &flags); | |
d203a7ec | 3189 | } else if ((*std) & V4L2_STD_NTSC) { |
a637a114 LM |
3190 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, |
3191 | &flags); | |
d203a7ec | 3192 | } else if ((*std) & V4L2_STD_SECAM) { |
a637a114 LM |
3193 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, |
3194 | &flags); | |
d203a7ec RB |
3195 | } else { |
3196 | ret = -EINVAL; | |
3197 | } | |
a637a114 LM |
3198 | |
3199 | if (ret) { | |
3200 | ret = -EINVAL; | |
3201 | } | |
d203a7ec RB |
3202 | } else { |
3203 | ret = -EINVAL; | |
3204 | } | |
3205 | ||
3206 | out: | |
a637a114 | 3207 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3208 | |
3209 | return ret; | |
3210 | } | |
3211 | ||
3212 | static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs, | |
3213 | struct v4l2_fmtdesc *fd) | |
3214 | { | |
3215 | enum v4l2_buf_type type = fd->type; | |
3216 | int index = fd->index; | |
3217 | dprintk("format index = %d\n", index); | |
3218 | ||
3219 | switch (fd->type) { | |
3220 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3221 | if ((fd->index < 0) || | |
3222 | (fd->index >= VINO_DATA_FMT_COUNT)) | |
3223 | return -EINVAL; | |
3224 | dprintk("format name = %s\n", | |
3225 | vino_data_formats[index].description); | |
3226 | ||
3227 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); | |
3228 | fd->index = index; | |
3229 | fd->type = type; | |
3230 | fd->pixelformat = vino_data_formats[index].pixelformat; | |
3231 | strcpy(fd->description, vino_data_formats[index].description); | |
3232 | break; | |
3233 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3234 | default: | |
3235 | return -EINVAL; | |
3236 | } | |
3237 | ||
3238 | return 0; | |
3239 | } | |
3240 | ||
3241 | static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs, | |
3242 | struct v4l2_format *f) | |
3243 | { | |
3244 | struct vino_channel_settings tempvcs; | |
a637a114 | 3245 | unsigned long flags; |
d203a7ec RB |
3246 | |
3247 | switch (f->type) { | |
3248 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3249 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
3250 | ||
3251 | dprintk("requested: w = %d, h = %d\n", | |
3252 | pf->width, pf->height); | |
3253 | ||
a637a114 | 3254 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3255 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); |
a637a114 | 3256 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3257 | |
3258 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); | |
3259 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { | |
a637a114 | 3260 | tempvcs.data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3261 | pf->pixelformat = |
3262 | vino_data_formats[tempvcs.data_format]. | |
3263 | pixelformat; | |
3264 | } | |
3265 | ||
3266 | /* data format must be set before clipping/scaling */ | |
3267 | vino_set_scaling(&tempvcs, pf->width, pf->height); | |
3268 | ||
3269 | dprintk("data format = %s\n", | |
3270 | vino_data_formats[tempvcs.data_format].description); | |
3271 | ||
3272 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / | |
3273 | tempvcs.decimation; | |
3274 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3275 | tempvcs.decimation; | |
3276 | ||
3277 | pf->field = V4L2_FIELD_INTERLACED; | |
3278 | pf->bytesperline = tempvcs.line_size; | |
3279 | pf->sizeimage = tempvcs.line_size * | |
3280 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3281 | tempvcs.decimation; | |
3282 | pf->colorspace = | |
3283 | vino_data_formats[tempvcs.data_format].colorspace; | |
3284 | ||
3285 | pf->priv = 0; | |
3286 | break; | |
3287 | } | |
3288 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3289 | default: | |
3290 | return -EINVAL; | |
3291 | } | |
3292 | ||
3293 | return 0; | |
3294 | } | |
3295 | ||
3296 | static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs, | |
3297 | struct v4l2_format *f) | |
3298 | { | |
a637a114 LM |
3299 | unsigned long flags; |
3300 | ||
d203a7ec RB |
3301 | switch (f->type) { |
3302 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3303 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
a637a114 LM |
3304 | |
3305 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3306 | |
3307 | pf->width = (vcs->clipping.right - vcs->clipping.left) / | |
3308 | vcs->decimation; | |
3309 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / | |
3310 | vcs->decimation; | |
3311 | pf->pixelformat = | |
3312 | vino_data_formats[vcs->data_format].pixelformat; | |
3313 | ||
3314 | pf->field = V4L2_FIELD_INTERLACED; | |
3315 | pf->bytesperline = vcs->line_size; | |
3316 | pf->sizeimage = vcs->line_size * | |
3317 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3318 | vcs->decimation; | |
3319 | pf->colorspace = | |
3320 | vino_data_formats[vcs->data_format].colorspace; | |
3321 | ||
3322 | pf->priv = 0; | |
3323 | ||
a637a114 | 3324 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3325 | break; |
3326 | } | |
3327 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3328 | default: | |
3329 | return -EINVAL; | |
3330 | } | |
3331 | ||
3332 | return 0; | |
3333 | } | |
3334 | ||
3335 | static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs, | |
3336 | struct v4l2_format *f) | |
3337 | { | |
3338 | int data_format; | |
a637a114 | 3339 | unsigned long flags; |
d203a7ec RB |
3340 | |
3341 | switch (f->type) { | |
3342 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3343 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
d203a7ec | 3344 | |
a637a114 | 3345 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3346 | |
3347 | data_format = vino_find_data_format(pf->pixelformat); | |
a637a114 | 3348 | |
d203a7ec | 3349 | if (data_format == VINO_DATA_FMT_NONE) { |
a637a114 | 3350 | vcs->data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3351 | pf->pixelformat = |
3352 | vino_data_formats[vcs->data_format]. | |
3353 | pixelformat; | |
3354 | } else { | |
3355 | vcs->data_format = data_format; | |
3356 | } | |
3357 | ||
3358 | /* data format must be set before clipping/scaling */ | |
3359 | vino_set_scaling(vcs, pf->width, pf->height); | |
3360 | ||
3361 | dprintk("data format = %s\n", | |
3362 | vino_data_formats[vcs->data_format].description); | |
3363 | ||
3364 | pf->width = vcs->clipping.right - vcs->clipping.left; | |
3365 | pf->height = vcs->clipping.bottom - vcs->clipping.top; | |
3366 | ||
3367 | pf->field = V4L2_FIELD_INTERLACED; | |
3368 | pf->bytesperline = vcs->line_size; | |
3369 | pf->sizeimage = vcs->line_size * | |
3370 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3371 | vcs->decimation; | |
3372 | pf->colorspace = | |
3373 | vino_data_formats[vcs->data_format].colorspace; | |
3374 | ||
3375 | pf->priv = 0; | |
3376 | ||
a637a114 | 3377 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3378 | break; |
3379 | } | |
3380 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3381 | default: | |
3382 | return -EINVAL; | |
3383 | } | |
3384 | ||
3385 | return 0; | |
3386 | } | |
3387 | ||
3388 | static int vino_v4l2_cropcap(struct vino_channel_settings *vcs, | |
3389 | struct v4l2_cropcap *ccap) | |
3390 | { | |
3391 | const struct vino_data_norm *norm; | |
a637a114 | 3392 | unsigned long flags; |
d203a7ec RB |
3393 | |
3394 | switch (ccap->type) { | |
3395 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 LM |
3396 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3397 | ||
d203a7ec | 3398 | norm = &vino_data_norms[vcs->data_norm]; |
a637a114 LM |
3399 | |
3400 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3401 | |
3402 | ccap->bounds.left = 0; | |
3403 | ccap->bounds.top = 0; | |
3404 | ccap->bounds.width = norm->width; | |
3405 | ccap->bounds.height = norm->height; | |
3406 | memcpy(&ccap->defrect, &ccap->bounds, | |
3407 | sizeof(struct v4l2_rect)); | |
3408 | ||
3409 | ccap->pixelaspect.numerator = 1; | |
3410 | ccap->pixelaspect.denominator = 1; | |
3411 | break; | |
3412 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3413 | default: | |
3414 | return -EINVAL; | |
3415 | } | |
3416 | ||
3417 | return 0; | |
3418 | } | |
3419 | ||
3420 | static int vino_v4l2_g_crop(struct vino_channel_settings *vcs, | |
3421 | struct v4l2_crop *c) | |
3422 | { | |
a637a114 LM |
3423 | unsigned long flags; |
3424 | ||
d203a7ec RB |
3425 | switch (c->type) { |
3426 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3427 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3428 | |
3429 | c->c.left = vcs->clipping.left; | |
3430 | c->c.top = vcs->clipping.top; | |
3431 | c->c.width = vcs->clipping.right - vcs->clipping.left; | |
3432 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; | |
3433 | ||
a637a114 | 3434 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3435 | break; |
3436 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3437 | default: | |
3438 | return -EINVAL; | |
3439 | } | |
3440 | ||
3441 | return 0; | |
3442 | } | |
3443 | ||
3444 | static int vino_v4l2_s_crop(struct vino_channel_settings *vcs, | |
3445 | struct v4l2_crop *c) | |
3446 | { | |
a637a114 LM |
3447 | unsigned long flags; |
3448 | ||
d203a7ec RB |
3449 | switch (c->type) { |
3450 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3451 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3452 | |
d203a7ec RB |
3453 | vino_set_clipping(vcs, c->c.left, c->c.top, |
3454 | c->c.width, c->c.height); | |
3455 | ||
a637a114 | 3456 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3457 | break; |
3458 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3459 | default: | |
3460 | return -EINVAL; | |
3461 | } | |
3462 | ||
3463 | return 0; | |
3464 | } | |
3465 | ||
3466 | static int vino_v4l2_g_parm(struct vino_channel_settings *vcs, | |
3467 | struct v4l2_streamparm *sp) | |
3468 | { | |
a637a114 LM |
3469 | unsigned long flags; |
3470 | ||
d203a7ec RB |
3471 | switch (sp->type) { |
3472 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3473 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3474 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
3475 | ||
3476 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
3477 | cp->timeperframe.numerator = 1; | |
3478 | ||
a637a114 LM |
3479 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3480 | ||
d203a7ec | 3481 | cp->timeperframe.denominator = vcs->fps; |
a637a114 LM |
3482 | |
3483 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3484 | |
3485 | // TODO: cp->readbuffers = xxx; | |
3486 | break; | |
3487 | } | |
3488 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3489 | default: | |
3490 | return -EINVAL; | |
3491 | } | |
3492 | ||
3493 | return 0; | |
3494 | } | |
3495 | ||
3496 | static int vino_v4l2_s_parm(struct vino_channel_settings *vcs, | |
3497 | struct v4l2_streamparm *sp) | |
3498 | { | |
a637a114 LM |
3499 | unsigned long flags; |
3500 | ||
d203a7ec RB |
3501 | switch (sp->type) { |
3502 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3503 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3504 | ||
a637a114 | 3505 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3506 | |
3507 | if ((cp->timeperframe.numerator == 0) || | |
3508 | (cp->timeperframe.denominator == 0)) { | |
3509 | /* reset framerate */ | |
3510 | vino_set_default_framerate(vcs); | |
3511 | } else { | |
3512 | vino_set_framerate(vcs, cp->timeperframe.denominator / | |
3513 | cp->timeperframe.numerator); | |
3514 | } | |
a637a114 LM |
3515 | |
3516 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3517 | |
3518 | // TODO: set buffers according to cp->readbuffers | |
3519 | break; | |
3520 | } | |
3521 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3522 | default: | |
3523 | return -EINVAL; | |
3524 | } | |
3525 | ||
3526 | return 0; | |
3527 | } | |
3528 | ||
3529 | static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs, | |
3530 | struct v4l2_requestbuffers *rb) | |
3531 | { | |
3532 | if (vcs->reading) | |
3533 | return -EBUSY; | |
3534 | ||
3535 | switch (rb->type) { | |
3536 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3537 | // TODO: check queue type | |
3538 | if (rb->memory != V4L2_MEMORY_MMAP) { | |
3539 | dprintk("type not mmap\n"); | |
3540 | return -EINVAL; | |
3541 | } | |
3542 | ||
d203a7ec RB |
3543 | dprintk("count = %d\n", rb->count); |
3544 | if (rb->count > 0) { | |
a637a114 LM |
3545 | if (vino_is_capturing(vcs)) { |
3546 | dprintk("busy, capturing\n"); | |
3547 | return -EBUSY; | |
3548 | } | |
3549 | ||
d203a7ec RB |
3550 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { |
3551 | dprintk("busy, buffers still mapped\n"); | |
3552 | return -EBUSY; | |
3553 | } else { | |
a637a114 | 3554 | vcs->streaming = 0; |
d203a7ec RB |
3555 | vino_queue_free(&vcs->fb_queue); |
3556 | vino_queue_init(&vcs->fb_queue, &rb->count); | |
3557 | } | |
3558 | } else { | |
a637a114 | 3559 | vcs->streaming = 0; |
d203a7ec RB |
3560 | vino_capture_stop(vcs); |
3561 | vino_queue_free(&vcs->fb_queue); | |
3562 | } | |
3563 | break; | |
3564 | } | |
3565 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3566 | default: | |
3567 | return -EINVAL; | |
3568 | } | |
3569 | ||
3570 | return 0; | |
3571 | } | |
3572 | ||
3573 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, | |
3574 | struct vino_framebuffer *fb, | |
3575 | struct v4l2_buffer *b) | |
3576 | { | |
3577 | if (vino_queue_outgoing_contains(&vcs->fb_queue, | |
3578 | fb->id)) { | |
3579 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; | |
3580 | b->flags |= V4L2_BUF_FLAG_DONE; | |
3581 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, | |
3582 | fb->id)) { | |
3583 | b->flags &= ~V4L2_BUF_FLAG_DONE; | |
3584 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
3585 | } else { | |
3586 | b->flags &= ~(V4L2_BUF_FLAG_DONE | | |
3587 | V4L2_BUF_FLAG_QUEUED); | |
3588 | } | |
3589 | ||
3590 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); | |
3591 | ||
3592 | if (fb->map_count > 0) | |
3593 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
3594 | ||
3595 | b->index = fb->id; | |
3596 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? | |
3597 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; | |
3598 | b->m.offset = fb->offset; | |
3599 | b->bytesused = fb->data_size; | |
3600 | b->length = fb->size; | |
3601 | b->field = V4L2_FIELD_INTERLACED; | |
3602 | b->sequence = fb->frame_counter; | |
3603 | memcpy(&b->timestamp, &fb->timestamp, | |
3604 | sizeof(struct timeval)); | |
3605 | // b->input ? | |
3606 | ||
3607 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", | |
3608 | fb->id, fb->size, fb->data_size, fb->offset); | |
3609 | } | |
3610 | ||
3611 | static int vino_v4l2_querybuf(struct vino_channel_settings *vcs, | |
3612 | struct v4l2_buffer *b) | |
3613 | { | |
3614 | if (vcs->reading) | |
3615 | return -EBUSY; | |
3616 | ||
3617 | switch (b->type) { | |
3618 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3619 | struct vino_framebuffer *fb; | |
3620 | ||
3621 | // TODO: check queue type | |
3622 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { | |
3623 | dprintk("invalid index = %d\n", | |
3624 | b->index); | |
3625 | return -EINVAL; | |
3626 | } | |
3627 | ||
3628 | fb = vino_queue_get_buffer(&vcs->fb_queue, | |
3629 | b->index); | |
3630 | if (fb == NULL) { | |
3631 | dprintk("vino_queue_get_buffer() failed"); | |
3632 | return -EINVAL; | |
3633 | } | |
3634 | ||
3635 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3636 | break; | |
3637 | } | |
3638 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3639 | default: | |
3640 | return -EINVAL; | |
3641 | } | |
3642 | ||
3643 | return 0; | |
3644 | } | |
3645 | ||
3646 | static int vino_v4l2_qbuf(struct vino_channel_settings *vcs, | |
3647 | struct v4l2_buffer *b) | |
3648 | { | |
3649 | if (vcs->reading) | |
3650 | return -EBUSY; | |
3651 | ||
3652 | switch (b->type) { | |
3653 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3654 | struct vino_framebuffer *fb; | |
3655 | int ret; | |
3656 | ||
3657 | // TODO: check queue type | |
3658 | if (b->memory != V4L2_MEMORY_MMAP) { | |
3659 | dprintk("type not mmap\n"); | |
3660 | return -EINVAL; | |
3661 | } | |
3662 | ||
3663 | fb = vino_capture_enqueue(vcs, b->index); | |
3664 | if (fb == NULL) | |
3665 | return -EINVAL; | |
3666 | ||
3667 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3668 | ||
3669 | if (vcs->streaming) { | |
3670 | ret = vino_capture_next(vcs, 1); | |
3671 | if (ret) | |
3672 | return ret; | |
3673 | } | |
3674 | break; | |
3675 | } | |
3676 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3677 | default: | |
3678 | return -EINVAL; | |
3679 | } | |
3680 | ||
3681 | return 0; | |
3682 | } | |
3683 | ||
3684 | static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs, | |
3685 | struct v4l2_buffer *b, | |
3686 | unsigned int nonblocking) | |
3687 | { | |
3688 | if (vcs->reading) | |
3689 | return -EBUSY; | |
3690 | ||
3691 | switch (b->type) { | |
3692 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3693 | struct vino_framebuffer *fb; | |
3694 | unsigned int incoming, outgoing; | |
3695 | int err; | |
3696 | ||
3697 | // TODO: check queue type | |
3698 | ||
3699 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3700 | if (err) { | |
3701 | dprintk("vino_queue_get_incoming() failed\n"); | |
a637a114 | 3702 | return -EINVAL; |
d203a7ec RB |
3703 | } |
3704 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); | |
3705 | if (err) { | |
3706 | dprintk("vino_queue_get_outgoing() failed\n"); | |
a637a114 | 3707 | return -EINVAL; |
d203a7ec RB |
3708 | } |
3709 | ||
3710 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); | |
3711 | ||
3712 | if (outgoing == 0) { | |
3713 | if (incoming == 0) { | |
3714 | dprintk("no incoming or outgoing buffers\n"); | |
3715 | return -EINVAL; | |
3716 | } | |
3717 | if (nonblocking) { | |
3718 | dprintk("non-blocking I/O was selected and " | |
3719 | "there are no buffers to dequeue\n"); | |
3720 | return -EAGAIN; | |
3721 | } | |
3722 | ||
3723 | err = vino_wait_for_frame(vcs); | |
3724 | if (err) { | |
3725 | err = vino_wait_for_frame(vcs); | |
3726 | if (err) { | |
a637a114 LM |
3727 | /* interrupted or |
3728 | * no frames captured because | |
3729 | * of frame skipping */ | |
3730 | // vino_capture_failed(vcs); | |
d203a7ec RB |
3731 | return -EIO; |
3732 | } | |
3733 | } | |
3734 | } | |
3735 | ||
3736 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); | |
3737 | if (fb == NULL) { | |
3738 | dprintk("vino_queue_remove() failed\n"); | |
3739 | return -EINVAL; | |
3740 | } | |
3741 | ||
3742 | err = vino_check_buffer(vcs, fb); | |
a637a114 LM |
3743 | |
3744 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3745 | ||
d203a7ec RB |
3746 | if (err) |
3747 | return -EIO; | |
3748 | ||
d203a7ec RB |
3749 | break; |
3750 | } | |
3751 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3752 | default: | |
3753 | return -EINVAL; | |
3754 | } | |
3755 | ||
3756 | return 0; | |
3757 | } | |
3758 | ||
3759 | static int vino_v4l2_streamon(struct vino_channel_settings *vcs) | |
3760 | { | |
3761 | unsigned int incoming; | |
3762 | int ret; | |
3763 | if (vcs->reading) | |
3764 | return -EBUSY; | |
3765 | ||
3766 | if (vcs->streaming) | |
3767 | return 0; | |
3768 | ||
3769 | // TODO: check queue type | |
3770 | ||
3771 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { | |
3772 | dprintk("no buffers allocated\n"); | |
3773 | return -EINVAL; | |
3774 | } | |
3775 | ||
3776 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3777 | if (ret) { | |
3778 | dprintk("vino_queue_get_incoming() failed\n"); | |
3779 | return -EINVAL; | |
3780 | } | |
3781 | ||
3782 | vcs->streaming = 1; | |
3783 | ||
3784 | if (incoming > 0) { | |
3785 | ret = vino_capture_next(vcs, 1); | |
3786 | if (ret) { | |
3787 | vcs->streaming = 0; | |
3788 | ||
3789 | dprintk("couldn't start capture\n"); | |
3790 | return -EINVAL; | |
3791 | } | |
3792 | } | |
3793 | ||
3794 | return 0; | |
3795 | } | |
3796 | ||
3797 | static int vino_v4l2_streamoff(struct vino_channel_settings *vcs) | |
3798 | { | |
3799 | if (vcs->reading) | |
3800 | return -EBUSY; | |
3801 | ||
3802 | if (!vcs->streaming) | |
3803 | return 0; | |
3804 | ||
d203a7ec | 3805 | vcs->streaming = 0; |
a637a114 | 3806 | vino_capture_stop(vcs); |
d203a7ec RB |
3807 | |
3808 | return 0; | |
3809 | } | |
3810 | ||
3811 | static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs, | |
3812 | struct v4l2_queryctrl *queryctrl) | |
3813 | { | |
a637a114 | 3814 | unsigned long flags; |
d203a7ec RB |
3815 | int i; |
3816 | int err = 0; | |
3817 | ||
a637a114 | 3818 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3819 | |
3820 | switch (vcs->input) { | |
3821 | case VINO_INPUT_D1: | |
3822 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3823 | if (vino_indycam_v4l2_controls[i].id == | |
3824 | queryctrl->id) { | |
3825 | memcpy(queryctrl, | |
3826 | &vino_indycam_v4l2_controls[i], | |
3827 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3828 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3829 | goto found; |
3830 | } | |
3831 | } | |
3832 | ||
3833 | err = -EINVAL; | |
3834 | break; | |
3835 | case VINO_INPUT_COMPOSITE: | |
3836 | case VINO_INPUT_SVIDEO: | |
3837 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3838 | if (vino_saa7191_v4l2_controls[i].id == | |
3839 | queryctrl->id) { | |
3840 | memcpy(queryctrl, | |
3841 | &vino_saa7191_v4l2_controls[i], | |
3842 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3843 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3844 | goto found; |
3845 | } | |
3846 | } | |
3847 | ||
3848 | err = -EINVAL; | |
3849 | break; | |
3850 | default: | |
3851 | err = -EINVAL; | |
3852 | } | |
3853 | ||
3854 | found: | |
a637a114 | 3855 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3856 | |
3857 | return err; | |
3858 | } | |
3859 | ||
3860 | static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs, | |
3861 | struct v4l2_control *control) | |
3862 | { | |
a637a114 LM |
3863 | unsigned long flags; |
3864 | int i; | |
d203a7ec RB |
3865 | int err = 0; |
3866 | ||
a637a114 | 3867 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3868 | |
3869 | switch (vcs->input) { | |
a637a114 LM |
3870 | case VINO_INPUT_D1: { |
3871 | struct indycam_control indycam_ctrl; | |
d203a7ec | 3872 | |
a637a114 LM |
3873 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3874 | if (vino_indycam_v4l2_controls[i].id == | |
3875 | control->id) { | |
3876 | goto found1; | |
3877 | } | |
3878 | } | |
3879 | ||
3880 | err = -EINVAL; | |
3881 | goto out; | |
3882 | ||
3883 | found1: | |
3884 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3885 | ||
3886 | err = i2c_camera_command(DECODER_INDYCAM_GET_CONTROL, | |
3887 | &indycam_ctrl); | |
3888 | if (err) { | |
d203a7ec | 3889 | err = -EINVAL; |
a637a114 | 3890 | goto out; |
d203a7ec | 3891 | } |
a637a114 LM |
3892 | |
3893 | control->value = indycam_ctrl.value; | |
d203a7ec | 3894 | break; |
a637a114 | 3895 | } |
d203a7ec | 3896 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3897 | case VINO_INPUT_SVIDEO: { |
3898 | struct saa7191_control saa7191_ctrl; | |
d203a7ec | 3899 | |
a637a114 LM |
3900 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
3901 | if (vino_saa7191_v4l2_controls[i].id == | |
3902 | control->id) { | |
3903 | goto found2; | |
3904 | } | |
3905 | } | |
3906 | ||
3907 | err = -EINVAL; | |
3908 | goto out; | |
3909 | ||
3910 | found2: | |
3911 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
3912 | ||
3913 | err = i2c_decoder_command(DECODER_SAA7191_GET_CONTROL, | |
3914 | &saa7191_ctrl); | |
3915 | if (err) { | |
d203a7ec | 3916 | err = -EINVAL; |
a637a114 | 3917 | goto out; |
d203a7ec | 3918 | } |
a637a114 LM |
3919 | |
3920 | control->value = saa7191_ctrl.value; | |
d203a7ec | 3921 | break; |
a637a114 | 3922 | } |
d203a7ec RB |
3923 | default: |
3924 | err = -EINVAL; | |
3925 | } | |
3926 | ||
a637a114 LM |
3927 | out: |
3928 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3929 | |
3930 | return err; | |
3931 | } | |
3932 | ||
3933 | static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs, | |
3934 | struct v4l2_control *control) | |
3935 | { | |
a637a114 | 3936 | unsigned long flags; |
d203a7ec RB |
3937 | int i; |
3938 | int err = 0; | |
3939 | ||
a637a114 LM |
3940 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3941 | ||
3942 | if (!vino_is_input_owner(vcs)) { | |
3943 | err = -EBUSY; | |
3944 | goto out; | |
3945 | } | |
d203a7ec RB |
3946 | |
3947 | switch (vcs->input) { | |
a637a114 LM |
3948 | case VINO_INPUT_D1: { |
3949 | struct indycam_control indycam_ctrl; | |
3950 | ||
d203a7ec RB |
3951 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3952 | if (vino_indycam_v4l2_controls[i].id == | |
3953 | control->id) { | |
3954 | if ((control->value >= | |
3955 | vino_indycam_v4l2_controls[i].minimum) | |
3956 | && (control->value <= | |
3957 | vino_indycam_v4l2_controls[i]. | |
3958 | maximum)) { | |
a637a114 | 3959 | goto found1; |
d203a7ec RB |
3960 | } else { |
3961 | err = -ERANGE; | |
a637a114 | 3962 | goto out; |
d203a7ec RB |
3963 | } |
3964 | } | |
3965 | } | |
a637a114 | 3966 | |
d203a7ec | 3967 | err = -EINVAL; |
a637a114 | 3968 | goto out; |
d203a7ec | 3969 | |
a637a114 LM |
3970 | found1: |
3971 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3972 | indycam_ctrl.value = control->value; | |
d203a7ec | 3973 | |
a637a114 LM |
3974 | err = i2c_camera_command(DECODER_INDYCAM_SET_CONTROL, |
3975 | &indycam_ctrl); | |
3976 | if (err) | |
3977 | err = -EINVAL; | |
d203a7ec | 3978 | break; |
a637a114 | 3979 | } |
d203a7ec | 3980 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3981 | case VINO_INPUT_SVIDEO: { |
3982 | struct saa7191_control saa7191_ctrl; | |
3983 | ||
d203a7ec RB |
3984 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
3985 | if (vino_saa7191_v4l2_controls[i].id == | |
3986 | control->id) { | |
3987 | if ((control->value >= | |
3988 | vino_saa7191_v4l2_controls[i].minimum) | |
3989 | && (control->value <= | |
3990 | vino_saa7191_v4l2_controls[i]. | |
3991 | maximum)) { | |
a637a114 | 3992 | goto found2; |
d203a7ec RB |
3993 | } else { |
3994 | err = -ERANGE; | |
a637a114 | 3995 | goto out; |
d203a7ec RB |
3996 | } |
3997 | } | |
3998 | } | |
3999 | err = -EINVAL; | |
a637a114 | 4000 | goto out; |
d203a7ec | 4001 | |
a637a114 LM |
4002 | found2: |
4003 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
4004 | saa7191_ctrl.value = control->value; | |
d203a7ec | 4005 | |
a637a114 LM |
4006 | err = i2c_decoder_command(DECODER_SAA7191_SET_CONTROL, |
4007 | &saa7191_ctrl); | |
4008 | if (err) | |
4009 | err = -EINVAL; | |
d203a7ec | 4010 | break; |
a637a114 | 4011 | } |
d203a7ec RB |
4012 | default: |
4013 | err = -EINVAL; | |
4014 | } | |
4015 | ||
a637a114 LM |
4016 | out: |
4017 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
4018 | |
4019 | return err; | |
4020 | } | |
4021 | ||
4022 | /* File operations */ | |
4023 | ||
4024 | static int vino_open(struct inode *inode, struct file *file) | |
4025 | { | |
4026 | struct video_device *dev = video_devdata(file); | |
4027 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4028 | int ret = 0; | |
4029 | dprintk("open(): channel = %c\n", | |
4030 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); | |
4031 | ||
3593cab5 | 4032 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4033 | |
4034 | if (vcs->users) { | |
4035 | dprintk("open(): driver busy\n"); | |
4036 | ret = -EBUSY; | |
4037 | goto out; | |
4038 | } | |
4039 | ||
4040 | ret = vino_acquire_input(vcs); | |
4041 | if (ret) { | |
4042 | dprintk("open(): vino_acquire_input() failed\n"); | |
4043 | goto out; | |
4044 | } | |
4045 | ||
4046 | vcs->users++; | |
4047 | ||
4048 | out: | |
3593cab5 | 4049 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4050 | |
4051 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); | |
4052 | ||
4053 | return ret; | |
4054 | } | |
4055 | ||
4056 | static int vino_close(struct inode *inode, struct file *file) | |
4057 | { | |
4058 | struct video_device *dev = video_devdata(file); | |
4059 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4060 | dprintk("close():\n"); | |
4061 | ||
3593cab5 | 4062 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4063 | |
4064 | vcs->users--; | |
4065 | ||
4066 | if (!vcs->users) { | |
4067 | vino_release_input(vcs); | |
4068 | ||
4069 | /* stop DMA and free buffers */ | |
4070 | vino_capture_stop(vcs); | |
4071 | vino_queue_free(&vcs->fb_queue); | |
4072 | } | |
4073 | ||
3593cab5 | 4074 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4075 | |
4076 | return 0; | |
4077 | } | |
4078 | ||
4079 | static void vino_vm_open(struct vm_area_struct *vma) | |
4080 | { | |
4081 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4082 | ||
4083 | fb->map_count++; | |
4084 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); | |
4085 | } | |
4086 | ||
4087 | static void vino_vm_close(struct vm_area_struct *vma) | |
4088 | { | |
4089 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4090 | ||
4091 | fb->map_count--; | |
4092 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); | |
4093 | } | |
4094 | ||
4095 | static struct vm_operations_struct vino_vm_ops = { | |
4096 | .open = vino_vm_open, | |
4097 | .close = vino_vm_close, | |
4098 | }; | |
4099 | ||
4100 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) | |
4101 | { | |
4102 | struct video_device *dev = video_devdata(file); | |
4103 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4104 | ||
4105 | unsigned long start = vma->vm_start; | |
4106 | unsigned long size = vma->vm_end - vma->vm_start; | |
4107 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; | |
4108 | ||
4109 | struct vino_framebuffer *fb = NULL; | |
4110 | unsigned int i, length; | |
4111 | int ret = 0; | |
4112 | ||
4113 | dprintk("mmap():\n"); | |
4114 | ||
4115 | // TODO: reject mmap if already mapped | |
4116 | ||
3593cab5 | 4117 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4118 | return -EINTR; |
4119 | ||
4120 | if (vcs->reading) { | |
4121 | ret = -EBUSY; | |
4122 | goto out; | |
4123 | } | |
4124 | ||
4125 | // TODO: check queue type | |
4126 | ||
4127 | if (!(vma->vm_flags & VM_WRITE)) { | |
4128 | dprintk("mmap(): app bug: PROT_WRITE please\n"); | |
4129 | ret = -EINVAL; | |
4130 | goto out; | |
4131 | } | |
4132 | if (!(vma->vm_flags & VM_SHARED)) { | |
4133 | dprintk("mmap(): app bug: MAP_SHARED please\n"); | |
4134 | ret = -EINVAL; | |
4135 | goto out; | |
4136 | } | |
4137 | ||
4138 | /* find the correct buffer using offset */ | |
4139 | length = vino_queue_get_length(&vcs->fb_queue); | |
4140 | if (length == 0) { | |
4141 | dprintk("mmap(): queue not initialized\n"); | |
4142 | ret = -EINVAL; | |
4143 | goto out; | |
4144 | } | |
4145 | ||
4146 | for (i = 0; i < length; i++) { | |
4147 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); | |
4148 | if (fb == NULL) { | |
4149 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); | |
4150 | ret = -EINVAL; | |
4151 | goto out; | |
4152 | } | |
4153 | ||
4154 | if (fb->offset == offset) | |
4155 | goto found; | |
4156 | } | |
4157 | ||
4158 | dprintk("mmap(): invalid offset = %lu\n", offset); | |
4159 | ret = -EINVAL; | |
4160 | goto out; | |
4161 | ||
4162 | found: | |
4163 | dprintk("mmap(): buffer = %d\n", i); | |
4164 | ||
4165 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { | |
4166 | dprintk("mmap(): failed: size = %lu > %lu\n", | |
4167 | size, fb->desc_table.page_count * PAGE_SIZE); | |
4168 | ret = -EINVAL; | |
4169 | goto out; | |
4170 | } | |
4171 | ||
4172 | for (i = 0; i < fb->desc_table.page_count; i++) { | |
4173 | unsigned long pfn = | |
4174 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> | |
4175 | PAGE_SHIFT; | |
4176 | ||
4177 | if (size < PAGE_SIZE) | |
4178 | break; | |
4179 | ||
4180 | // protection was: PAGE_READONLY | |
4181 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, | |
4182 | vma->vm_page_prot)) { | |
4183 | dprintk("mmap(): remap_pfn_range() failed\n"); | |
4184 | ret = -EAGAIN; | |
4185 | goto out; | |
4186 | } | |
4187 | ||
4188 | start += PAGE_SIZE; | |
4189 | size -= PAGE_SIZE; | |
4190 | } | |
4191 | ||
4192 | fb->map_count = 1; | |
4193 | ||
4194 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; | |
4195 | vma->vm_flags &= ~VM_IO; | |
4196 | vma->vm_private_data = fb; | |
4197 | vma->vm_file = file; | |
4198 | vma->vm_ops = &vino_vm_ops; | |
4199 | ||
4200 | out: | |
3593cab5 | 4201 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4202 | |
4203 | return ret; | |
4204 | } | |
4205 | ||
4206 | static unsigned int vino_poll(struct file *file, poll_table *pt) | |
4207 | { | |
4208 | struct video_device *dev = video_devdata(file); | |
4209 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4210 | unsigned int outgoing; | |
4211 | unsigned int ret = 0; | |
4212 | ||
4213 | // lock mutex (?) | |
4214 | // TODO: this has to be corrected for different read modes | |
4215 | ||
4216 | dprintk("poll():\n"); | |
4217 | ||
4218 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4219 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4220 | ret = POLLERR; | |
4221 | goto error; | |
4222 | } | |
4223 | if (outgoing > 0) | |
4224 | goto over; | |
4225 | ||
4226 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); | |
4227 | ||
4228 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4229 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4230 | ret = POLLERR; | |
4231 | goto error; | |
4232 | } | |
4233 | ||
4234 | over: | |
4235 | dprintk("poll(): data %savailable\n", | |
4236 | (outgoing > 0) ? "" : "not "); | |
a637a114 LM |
4237 | |
4238 | if (outgoing > 0) | |
d203a7ec | 4239 | ret = POLLIN | POLLRDNORM; |
d203a7ec RB |
4240 | |
4241 | error: | |
4242 | ||
4243 | return ret; | |
4244 | } | |
4245 | ||
4246 | static int vino_do_ioctl(struct inode *inode, struct file *file, | |
4247 | unsigned int cmd, void *arg) | |
4248 | { | |
4249 | struct video_device *dev = video_devdata(file); | |
4250 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4251 | ||
a637a114 | 4252 | #ifdef VINO_DEBUG |
d203a7ec RB |
4253 | switch (_IOC_TYPE(cmd)) { |
4254 | case 'v': | |
4255 | dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd); | |
4256 | break; | |
4257 | case 'V': | |
4258 | dprintk("ioctl(): V4L2 %s (0x%08x)\n", | |
4259 | v4l2_ioctl_names[_IOC_NR(cmd)], cmd); | |
4260 | break; | |
4261 | default: | |
4262 | dprintk("ioctl(): unsupported command 0x%08x\n", cmd); | |
4263 | } | |
a637a114 | 4264 | #endif |
d203a7ec RB |
4265 | |
4266 | switch (cmd) { | |
d203a7ec RB |
4267 | /* V4L2 interface */ |
4268 | case VIDIOC_QUERYCAP: { | |
4269 | vino_v4l2_querycap(arg); | |
4270 | break; | |
4271 | } | |
4272 | case VIDIOC_ENUMINPUT: { | |
4273 | return vino_v4l2_enuminput(vcs, arg); | |
4274 | } | |
4275 | case VIDIOC_G_INPUT: { | |
4276 | return vino_v4l2_g_input(vcs, arg); | |
4277 | } | |
4278 | case VIDIOC_S_INPUT: { | |
4279 | return vino_v4l2_s_input(vcs, arg); | |
4280 | } | |
4281 | case VIDIOC_ENUMSTD: { | |
4282 | return vino_v4l2_enumstd(vcs, arg); | |
4283 | } | |
a637a114 LM |
4284 | case VIDIOC_QUERYSTD: { |
4285 | return vino_v4l2_querystd(vcs, arg); | |
4286 | } | |
d203a7ec RB |
4287 | case VIDIOC_G_STD: { |
4288 | return vino_v4l2_g_std(vcs, arg); | |
4289 | } | |
4290 | case VIDIOC_S_STD: { | |
4291 | return vino_v4l2_s_std(vcs, arg); | |
4292 | } | |
4293 | case VIDIOC_ENUM_FMT: { | |
4294 | return vino_v4l2_enum_fmt(vcs, arg); | |
4295 | } | |
4296 | case VIDIOC_TRY_FMT: { | |
4297 | return vino_v4l2_try_fmt(vcs, arg); | |
4298 | } | |
4299 | case VIDIOC_G_FMT: { | |
4300 | return vino_v4l2_g_fmt(vcs, arg); | |
4301 | } | |
4302 | case VIDIOC_S_FMT: { | |
4303 | return vino_v4l2_s_fmt(vcs, arg); | |
4304 | } | |
4305 | case VIDIOC_CROPCAP: { | |
4306 | return vino_v4l2_cropcap(vcs, arg); | |
4307 | } | |
4308 | case VIDIOC_G_CROP: { | |
4309 | return vino_v4l2_g_crop(vcs, arg); | |
4310 | } | |
4311 | case VIDIOC_S_CROP: { | |
4312 | return vino_v4l2_s_crop(vcs, arg); | |
4313 | } | |
4314 | case VIDIOC_G_PARM: { | |
4315 | return vino_v4l2_g_parm(vcs, arg); | |
4316 | } | |
4317 | case VIDIOC_S_PARM: { | |
4318 | return vino_v4l2_s_parm(vcs, arg); | |
4319 | } | |
4320 | case VIDIOC_REQBUFS: { | |
4321 | return vino_v4l2_reqbufs(vcs, arg); | |
4322 | } | |
4323 | case VIDIOC_QUERYBUF: { | |
4324 | return vino_v4l2_querybuf(vcs, arg); | |
4325 | } | |
4326 | case VIDIOC_QBUF: { | |
4327 | return vino_v4l2_qbuf(vcs, arg); | |
4328 | } | |
4329 | case VIDIOC_DQBUF: { | |
4330 | return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK); | |
4331 | } | |
4332 | case VIDIOC_STREAMON: { | |
4333 | return vino_v4l2_streamon(vcs); | |
4334 | } | |
4335 | case VIDIOC_STREAMOFF: { | |
4336 | return vino_v4l2_streamoff(vcs); | |
4337 | } | |
4338 | case VIDIOC_QUERYCTRL: { | |
4339 | return vino_v4l2_queryctrl(vcs, arg); | |
4340 | } | |
4341 | case VIDIOC_G_CTRL: { | |
4342 | return vino_v4l2_g_ctrl(vcs, arg); | |
4343 | } | |
4344 | case VIDIOC_S_CTRL: { | |
4345 | return vino_v4l2_s_ctrl(vcs, arg); | |
4346 | } | |
4347 | default: | |
4348 | return -ENOIOCTLCMD; | |
4349 | } | |
4350 | ||
4351 | return 0; | |
4352 | } | |
4353 | ||
4354 | static int vino_ioctl(struct inode *inode, struct file *file, | |
4355 | unsigned int cmd, unsigned long arg) | |
4356 | { | |
4357 | struct video_device *dev = video_devdata(file); | |
4358 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4359 | int ret; | |
4360 | ||
3593cab5 | 4361 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4362 | return -EINTR; |
4363 | ||
4364 | ret = video_usercopy(inode, file, cmd, arg, vino_do_ioctl); | |
4365 | ||
3593cab5 | 4366 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4367 | |
4368 | return ret; | |
4369 | } | |
4370 | ||
4371 | /* Initialization and cleanup */ | |
4372 | ||
ff699e6b DSL |
4373 | /* __initdata */ |
4374 | static int vino_init_stage; | |
d203a7ec | 4375 | |
fa027c2a | 4376 | static const struct file_operations vino_fops = { |
d203a7ec RB |
4377 | .owner = THIS_MODULE, |
4378 | .open = vino_open, | |
4379 | .release = vino_close, | |
4380 | .ioctl = vino_ioctl, | |
4381 | .mmap = vino_mmap, | |
4382 | .poll = vino_poll, | |
4383 | .llseek = no_llseek, | |
4384 | }; | |
4385 | ||
4386 | static struct video_device v4l_device_template = { | |
4387 | .name = "NOT SET", | |
ff699e6b DSL |
4388 | /*.type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE | */ |
4389 | /* VID_TYPE_CLIPPING | VID_TYPE_SCALES, VID_TYPE_OVERLAY */ | |
d203a7ec RB |
4390 | .fops = &vino_fops, |
4391 | .minor = -1, | |
4392 | }; | |
4393 | ||
4394 | static void vino_module_cleanup(int stage) | |
4395 | { | |
4396 | switch(stage) { | |
4397 | case 10: | |
4398 | video_unregister_device(vino_drvdata->b.v4l_device); | |
4399 | vino_drvdata->b.v4l_device = NULL; | |
4400 | case 9: | |
4401 | video_unregister_device(vino_drvdata->a.v4l_device); | |
4402 | vino_drvdata->a.v4l_device = NULL; | |
4403 | case 8: | |
4404 | vino_i2c_del_bus(); | |
4405 | case 7: | |
4406 | free_irq(SGI_VINO_IRQ, NULL); | |
4407 | case 6: | |
4408 | if (vino_drvdata->b.v4l_device) { | |
4409 | video_device_release(vino_drvdata->b.v4l_device); | |
4410 | vino_drvdata->b.v4l_device = NULL; | |
4411 | } | |
4412 | case 5: | |
4413 | if (vino_drvdata->a.v4l_device) { | |
4414 | video_device_release(vino_drvdata->a.v4l_device); | |
4415 | vino_drvdata->a.v4l_device = NULL; | |
4416 | } | |
4417 | case 4: | |
4418 | /* all entries in dma_cpu dummy table have the same address */ | |
4419 | dma_unmap_single(NULL, | |
4420 | vino_drvdata->dummy_desc_table.dma_cpu[0], | |
4421 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4422 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT | |
4423 | * sizeof(dma_addr_t), | |
4424 | (void *)vino_drvdata-> | |
4425 | dummy_desc_table.dma_cpu, | |
4426 | vino_drvdata->dummy_desc_table.dma); | |
4427 | case 3: | |
4428 | free_page(vino_drvdata->dummy_page); | |
4429 | case 2: | |
4430 | kfree(vino_drvdata); | |
4431 | case 1: | |
4432 | iounmap(vino); | |
4433 | case 0: | |
4434 | break; | |
4435 | default: | |
4436 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", | |
4437 | stage); | |
4438 | } | |
4439 | } | |
4440 | ||
4441 | static int vino_probe(void) | |
4442 | { | |
4443 | unsigned long rev_id; | |
4444 | ||
4445 | if (ip22_is_fullhouse()) { | |
4446 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); | |
4447 | return -ENODEV; | |
4448 | } | |
4449 | ||
4450 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { | |
4451 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); | |
4452 | return -ENODEV; | |
4453 | } | |
4454 | ||
4455 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); | |
4456 | if (!vino) { | |
4457 | printk(KERN_ERR "VINO: ioremap() failed\n"); | |
4458 | return -EIO; | |
4459 | } | |
4460 | vino_init_stage++; | |
4461 | ||
4462 | if (get_dbe(rev_id, &(vino->rev_id))) { | |
4463 | printk(KERN_ERR "Failed to read VINO revision register\n"); | |
4464 | vino_module_cleanup(vino_init_stage); | |
4465 | return -ENODEV; | |
4466 | } | |
4467 | ||
4468 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { | |
4469 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", | |
4470 | rev_id); | |
4471 | vino_module_cleanup(vino_init_stage); | |
4472 | return -ENODEV; | |
4473 | } | |
4474 | ||
a637a114 | 4475 | printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); |
d203a7ec RB |
4476 | |
4477 | return 0; | |
4478 | } | |
4479 | ||
4480 | static int vino_init(void) | |
4481 | { | |
4482 | dma_addr_t dma_dummy_address; | |
4483 | int i; | |
4484 | ||
7408187d | 4485 | vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); |
d203a7ec RB |
4486 | if (!vino_drvdata) { |
4487 | vino_module_cleanup(vino_init_stage); | |
4488 | return -ENOMEM; | |
4489 | } | |
d203a7ec RB |
4490 | vino_init_stage++; |
4491 | ||
4492 | /* create a dummy dma descriptor */ | |
4493 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
4494 | if (!vino_drvdata->dummy_page) { | |
4495 | vino_module_cleanup(vino_init_stage); | |
4496 | return -ENOMEM; | |
4497 | } | |
4498 | vino_init_stage++; | |
4499 | ||
4500 | // TODO: use page_count in dummy_desc_table | |
4501 | ||
4502 | vino_drvdata->dummy_desc_table.dma_cpu = | |
4503 | dma_alloc_coherent(NULL, | |
4504 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), | |
4505 | &vino_drvdata->dummy_desc_table.dma, | |
4506 | GFP_KERNEL | GFP_DMA); | |
4507 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { | |
4508 | vino_module_cleanup(vino_init_stage); | |
4509 | return -ENOMEM; | |
4510 | } | |
4511 | vino_init_stage++; | |
4512 | ||
4513 | dma_dummy_address = dma_map_single(NULL, | |
4514 | (void *)vino_drvdata->dummy_page, | |
4515 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4516 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { | |
4517 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; | |
4518 | } | |
4519 | ||
4520 | /* initialize VINO */ | |
4521 | ||
4522 | vino->control = 0; | |
4523 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4524 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4525 | udelay(VINO_DESC_FETCH_DELAY); | |
4526 | ||
4527 | vino->intr_status = 0; | |
4528 | ||
4529 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4530 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4531 | ||
4532 | return 0; | |
4533 | } | |
4534 | ||
4535 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, | |
4536 | unsigned int channel, const char *name) | |
4537 | { | |
4538 | vcs->channel = channel; | |
4539 | vcs->input = VINO_INPUT_NONE; | |
4540 | vcs->alpha = 0; | |
4541 | vcs->users = 0; | |
4542 | vcs->data_format = VINO_DATA_FMT_GREY; | |
4543 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
4544 | vcs->decimation = 1; | |
4545 | vino_set_default_clipping(vcs); | |
4546 | vino_set_default_framerate(vcs); | |
4547 | ||
4548 | vcs->capturing = 0; | |
4549 | ||
3593cab5 | 4550 | mutex_init(&vcs->mutex); |
d203a7ec RB |
4551 | spin_lock_init(&vcs->capture_lock); |
4552 | ||
3593cab5 | 4553 | mutex_init(&vcs->fb_queue.queue_mutex); |
d203a7ec RB |
4554 | spin_lock_init(&vcs->fb_queue.queue_lock); |
4555 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); | |
4556 | ||
4557 | vcs->v4l_device = video_device_alloc(); | |
4558 | if (!vcs->v4l_device) { | |
4559 | vino_module_cleanup(vino_init_stage); | |
4560 | return -ENOMEM; | |
4561 | } | |
4562 | vino_init_stage++; | |
4563 | ||
4564 | memcpy(vcs->v4l_device, &v4l_device_template, | |
4565 | sizeof(struct video_device)); | |
4566 | strcpy(vcs->v4l_device->name, name); | |
4567 | vcs->v4l_device->release = video_device_release; | |
4568 | ||
4569 | video_set_drvdata(vcs->v4l_device, vcs); | |
4570 | ||
4571 | return 0; | |
4572 | } | |
4573 | ||
4574 | static int __init vino_module_init(void) | |
4575 | { | |
4576 | int ret; | |
4577 | ||
4578 | printk(KERN_INFO "SGI VINO driver version %s\n", | |
4579 | VINO_MODULE_VERSION); | |
4580 | ||
4581 | ret = vino_probe(); | |
4582 | if (ret) | |
4583 | return ret; | |
4584 | ||
4585 | ret = vino_init(); | |
4586 | if (ret) | |
4587 | return ret; | |
4588 | ||
4589 | /* initialize data structures */ | |
4590 | ||
4591 | spin_lock_init(&vino_drvdata->vino_lock); | |
4592 | spin_lock_init(&vino_drvdata->input_lock); | |
4593 | ||
4594 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, | |
4595 | vino_v4l_device_name_a); | |
4596 | if (ret) | |
4597 | return ret; | |
4598 | ||
4599 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, | |
4600 | vino_v4l_device_name_b); | |
4601 | if (ret) | |
4602 | return ret; | |
4603 | ||
4604 | /* initialize hardware and register V4L devices */ | |
4605 | ||
4606 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, | |
4607 | vino_driver_description, NULL); | |
4608 | if (ret) { | |
4609 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", | |
4610 | SGI_VINO_IRQ); | |
4611 | vino_module_cleanup(vino_init_stage); | |
4612 | return -EAGAIN; | |
4613 | } | |
4614 | vino_init_stage++; | |
4615 | ||
4616 | ret = vino_i2c_add_bus(); | |
4617 | if (ret) { | |
4618 | printk(KERN_ERR "VINO I2C bus registration failed\n"); | |
4619 | vino_module_cleanup(vino_init_stage); | |
4620 | return ret; | |
4621 | } | |
4622 | vino_init_stage++; | |
4623 | ||
4624 | ret = video_register_device(vino_drvdata->a.v4l_device, | |
4625 | VFL_TYPE_GRABBER, -1); | |
4626 | if (ret < 0) { | |
4627 | printk(KERN_ERR "VINO channel A Video4Linux-device " | |
4628 | "registration failed\n"); | |
4629 | vino_module_cleanup(vino_init_stage); | |
4630 | return -EINVAL; | |
4631 | } | |
4632 | vino_init_stage++; | |
4633 | ||
4634 | ret = video_register_device(vino_drvdata->b.v4l_device, | |
4635 | VFL_TYPE_GRABBER, -1); | |
4636 | if (ret < 0) { | |
4637 | printk(KERN_ERR "VINO channel B Video4Linux-device " | |
4638 | "registration failed\n"); | |
4639 | vino_module_cleanup(vino_init_stage); | |
4640 | return -EINVAL; | |
4641 | } | |
4642 | vino_init_stage++; | |
4643 | ||
4644 | #if defined(CONFIG_KMOD) && defined(MODULE) | |
4645 | request_module("saa7191"); | |
4646 | request_module("indycam"); | |
4647 | #endif | |
4648 | ||
4649 | dprintk("init complete!\n"); | |
4650 | ||
4651 | return 0; | |
4652 | } | |
4653 | ||
4654 | static void __exit vino_module_exit(void) | |
4655 | { | |
4656 | dprintk("exiting, stage = %d ...\n", vino_init_stage); | |
4657 | vino_module_cleanup(vino_init_stage); | |
4658 | dprintk("cleanup complete, exit!\n"); | |
4659 | } | |
4660 | ||
4661 | module_init(vino_module_init); | |
4662 | module_exit(vino_module_exit); |