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 | 33 | #include <linux/kmod.h> |
d203a7ec | 34 | |
1da177e4 LT |
35 | #include <linux/i2c.h> |
36 | #include <linux/i2c-algo-sgi.h> | |
37 | ||
33b687cf | 38 | #include <linux/videodev2.h> |
5e87efa3 | 39 | #include <media/v4l2-common.h> |
c2cfcf70 | 40 | #include <media/v4l2-ioctl.h> |
d203a7ec | 41 | #include <linux/video_decoder.h> |
3593cab5 | 42 | #include <linux/mutex.h> |
d203a7ec | 43 | |
1da177e4 LT |
44 | #include <asm/paccess.h> |
45 | #include <asm/io.h> | |
46 | #include <asm/sgi/ip22.h> | |
1da177e4 LT |
47 | #include <asm/sgi/mc.h> |
48 | ||
49 | #include "vino.h" | |
d203a7ec RB |
50 | #include "saa7191.h" |
51 | #include "indycam.h" | |
1da177e4 | 52 | |
d203a7ec RB |
53 | /* Uncomment the following line to get lots and lots of (mostly useless) |
54 | * debug info. | |
55 | * Note that the debug output also slows down the driver significantly */ | |
56 | // #define VINO_DEBUG | |
a637a114 | 57 | // #define VINO_DEBUG_INT |
d203a7ec | 58 | |
a637a114 LM |
59 | #define VINO_MODULE_VERSION "0.0.5" |
60 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5) | |
d203a7ec RB |
61 | |
62 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); | |
63 | MODULE_VERSION(VINO_MODULE_VERSION); | |
64 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
65 | MODULE_LICENSE("GPL"); | |
66 | ||
d203a7ec RB |
67 | #ifdef VINO_DEBUG |
68 | #define dprintk(x...) printk("VINO: " x); | |
1da177e4 | 69 | #else |
d203a7ec | 70 | #define dprintk(x...) |
1da177e4 LT |
71 | #endif |
72 | ||
d203a7ec RB |
73 | #define VINO_NO_CHANNEL 0 |
74 | #define VINO_CHANNEL_A 1 | |
75 | #define VINO_CHANNEL_B 2 | |
76 | ||
77 | #define VINO_PAL_WIDTH 768 | |
78 | #define VINO_PAL_HEIGHT 576 | |
79 | #define VINO_NTSC_WIDTH 640 | |
80 | #define VINO_NTSC_HEIGHT 480 | |
81 | ||
82 | #define VINO_MIN_WIDTH 32 | |
83 | #define VINO_MIN_HEIGHT 32 | |
84 | ||
85 | #define VINO_CLIPPING_START_ODD_D1 1 | |
a637a114 LM |
86 | #define VINO_CLIPPING_START_ODD_PAL 15 |
87 | #define VINO_CLIPPING_START_ODD_NTSC 12 | |
d203a7ec RB |
88 | |
89 | #define VINO_CLIPPING_START_EVEN_D1 2 | |
a637a114 LM |
90 | #define VINO_CLIPPING_START_EVEN_PAL 15 |
91 | #define VINO_CLIPPING_START_EVEN_NTSC 12 | |
d203a7ec RB |
92 | |
93 | #define VINO_INPUT_CHANNEL_COUNT 3 | |
94 | ||
a637a114 | 95 | /* the number is the index for vino_inputs */ |
d203a7ec RB |
96 | #define VINO_INPUT_NONE -1 |
97 | #define VINO_INPUT_COMPOSITE 0 | |
98 | #define VINO_INPUT_SVIDEO 1 | |
99 | #define VINO_INPUT_D1 2 | |
100 | ||
101 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) | |
102 | ||
a637a114 | 103 | #define VINO_FIFO_THRESHOLD_DEFAULT 16 |
d203a7ec | 104 | |
d203a7ec RB |
105 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ |
106 | * VINO_PAL_HEIGHT * 4 \ | |
107 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) | |
108 | ||
a637a114 | 109 | #define VINO_FRAMEBUFFER_COUNT_MAX 8 |
d203a7ec RB |
110 | |
111 | #define VINO_FRAMEBUFFER_UNUSED 0 | |
112 | #define VINO_FRAMEBUFFER_IN_USE 1 | |
113 | #define VINO_FRAMEBUFFER_READY 2 | |
114 | ||
115 | #define VINO_QUEUE_ERROR -1 | |
116 | #define VINO_QUEUE_MAGIC 0x20050125 | |
117 | ||
118 | #define VINO_MEMORY_NONE 0 | |
119 | #define VINO_MEMORY_MMAP 1 | |
120 | #define VINO_MEMORY_USERPTR 2 | |
121 | ||
122 | #define VINO_DUMMY_DESC_COUNT 4 | |
123 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ | |
124 | ||
a637a114 LM |
125 | #define VINO_MAX_FRAME_SKIP_COUNT 128 |
126 | ||
d203a7ec RB |
127 | /* the number is the index for vino_data_formats */ |
128 | #define VINO_DATA_FMT_NONE -1 | |
129 | #define VINO_DATA_FMT_GREY 0 | |
130 | #define VINO_DATA_FMT_RGB332 1 | |
131 | #define VINO_DATA_FMT_RGB32 2 | |
132 | #define VINO_DATA_FMT_YUV 3 | |
d203a7ec RB |
133 | |
134 | #define VINO_DATA_FMT_COUNT 4 | |
135 | ||
a637a114 | 136 | /* the number is the index for vino_data_norms */ |
d203a7ec RB |
137 | #define VINO_DATA_NORM_NONE -1 |
138 | #define VINO_DATA_NORM_NTSC 0 | |
139 | #define VINO_DATA_NORM_PAL 1 | |
140 | #define VINO_DATA_NORM_SECAM 2 | |
141 | #define VINO_DATA_NORM_D1 3 | |
a637a114 | 142 | /* The following are special entries that can be used to |
d203a7ec | 143 | * autodetect the norm. */ |
a637a114 LM |
144 | #define VINO_DATA_NORM_AUTO 0xfe |
145 | #define VINO_DATA_NORM_AUTO_EXT 0xff | |
d203a7ec RB |
146 | |
147 | #define VINO_DATA_NORM_COUNT 4 | |
148 | ||
149 | /* Internal data structure definitions */ | |
150 | ||
151 | struct vino_input { | |
152 | char *name; | |
153 | v4l2_std_id std; | |
154 | }; | |
155 | ||
156 | struct vino_clipping { | |
157 | unsigned int left, right, top, bottom; | |
158 | }; | |
159 | ||
160 | struct vino_data_format { | |
161 | /* the description */ | |
162 | char *description; | |
163 | /* bytes per pixel */ | |
164 | unsigned int bpp; | |
165 | /* V4L2 fourcc code */ | |
166 | __u32 pixelformat; | |
167 | /* V4L2 colorspace (duh!) */ | |
168 | enum v4l2_colorspace colorspace; | |
169 | }; | |
170 | ||
171 | struct vino_data_norm { | |
172 | char *description; | |
173 | unsigned int width, height; | |
174 | struct vino_clipping odd; | |
175 | struct vino_clipping even; | |
176 | ||
177 | v4l2_std_id std; | |
178 | unsigned int fps_min, fps_max; | |
179 | __u32 framelines; | |
180 | }; | |
181 | ||
182 | struct vino_descriptor_table { | |
183 | /* the number of PAGE_SIZE sized pages in the buffer */ | |
184 | unsigned int page_count; | |
185 | /* virtual (kmalloc'd) pointers to the actual data | |
186 | * (in PAGE_SIZE chunks, used with mmap streaming) */ | |
187 | unsigned long *virtual; | |
188 | ||
189 | /* cpu address for the VINO descriptor table | |
190 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
191 | unsigned long *dma_cpu; | |
192 | /* dma address for the VINO descriptor table | |
193 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
194 | dma_addr_t dma; | |
195 | }; | |
196 | ||
197 | struct vino_framebuffer { | |
198 | /* identifier nubmer */ | |
199 | unsigned int id; | |
200 | /* the length of the whole buffer */ | |
201 | unsigned int size; | |
202 | /* the length of actual data in buffer */ | |
203 | unsigned int data_size; | |
204 | /* the data format */ | |
205 | unsigned int data_format; | |
206 | /* the state of buffer data */ | |
207 | unsigned int state; | |
208 | /* is the buffer mapped in user space? */ | |
209 | unsigned int map_count; | |
210 | /* memory offset for mmap() */ | |
211 | unsigned int offset; | |
212 | /* frame counter */ | |
213 | unsigned int frame_counter; | |
214 | /* timestamp (written when image capture finishes) */ | |
215 | struct timeval timestamp; | |
216 | ||
217 | struct vino_descriptor_table desc_table; | |
218 | ||
219 | spinlock_t state_lock; | |
220 | }; | |
221 | ||
222 | struct vino_framebuffer_fifo { | |
223 | unsigned int length; | |
224 | ||
225 | unsigned int used; | |
226 | unsigned int head; | |
227 | unsigned int tail; | |
228 | ||
a637a114 | 229 | unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; |
d203a7ec RB |
230 | }; |
231 | ||
232 | struct vino_framebuffer_queue { | |
233 | unsigned int magic; | |
234 | ||
235 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ | |
236 | unsigned int type; | |
237 | unsigned int length; | |
238 | ||
239 | /* data field of in and out contain index numbers for buffer */ | |
240 | struct vino_framebuffer_fifo in; | |
241 | struct vino_framebuffer_fifo out; | |
242 | ||
a637a114 | 243 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; |
1da177e4 | 244 | |
d203a7ec | 245 | spinlock_t queue_lock; |
3593cab5 | 246 | struct mutex queue_mutex; |
d203a7ec RB |
247 | wait_queue_head_t frame_wait_queue; |
248 | }; | |
249 | ||
a637a114 LM |
250 | struct vino_interrupt_data { |
251 | struct timeval timestamp; | |
252 | unsigned int frame_counter; | |
253 | unsigned int skip_count; | |
254 | unsigned int skip; | |
255 | }; | |
256 | ||
d203a7ec RB |
257 | struct vino_channel_settings { |
258 | unsigned int channel; | |
259 | ||
260 | int input; | |
261 | unsigned int data_format; | |
262 | unsigned int data_norm; | |
263 | struct vino_clipping clipping; | |
264 | unsigned int decimation; | |
265 | unsigned int line_size; | |
266 | unsigned int alpha; | |
267 | unsigned int fps; | |
268 | unsigned int framert_reg; | |
269 | ||
270 | unsigned int fifo_threshold; | |
271 | ||
272 | struct vino_framebuffer_queue fb_queue; | |
273 | ||
274 | /* number of the current field */ | |
275 | unsigned int field; | |
276 | ||
277 | /* read in progress */ | |
278 | int reading; | |
279 | /* streaming is active */ | |
280 | int streaming; | |
281 | /* the driver is currently processing the queue */ | |
282 | int capturing; | |
283 | ||
3593cab5 | 284 | struct mutex mutex; |
d203a7ec | 285 | spinlock_t capture_lock; |
1da177e4 | 286 | |
d203a7ec | 287 | unsigned int users; |
1da177e4 | 288 | |
a637a114 LM |
289 | struct vino_interrupt_data int_data; |
290 | ||
d203a7ec RB |
291 | /* V4L support */ |
292 | struct video_device *v4l_device; | |
1da177e4 LT |
293 | }; |
294 | ||
295 | struct vino_client { | |
d203a7ec RB |
296 | /* the channel which owns this client: |
297 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ | |
298 | unsigned int owner; | |
1da177e4 | 299 | struct i2c_client *driver; |
1da177e4 LT |
300 | }; |
301 | ||
d203a7ec RB |
302 | struct vino_settings { |
303 | struct vino_channel_settings a; | |
304 | struct vino_channel_settings b; | |
1da177e4 LT |
305 | |
306 | struct vino_client decoder; | |
307 | struct vino_client camera; | |
308 | ||
d203a7ec RB |
309 | /* a lock for vino register access */ |
310 | spinlock_t vino_lock; | |
311 | /* a lock for channel input changes */ | |
312 | spinlock_t input_lock; | |
1da177e4 | 313 | |
1da177e4 | 314 | unsigned long dummy_page; |
d203a7ec RB |
315 | struct vino_descriptor_table dummy_desc_table; |
316 | }; | |
317 | ||
318 | /* Module parameters */ | |
319 | ||
320 | /* | |
a637a114 | 321 | * Using vino_pixel_conversion the ABGR32-format pixels supplied |
d203a7ec RB |
322 | * by the VINO chip can be converted to more common formats |
323 | * like RGBA32 (or probably RGB24 in the future). This way we | |
324 | * can give out data that can be specified correctly with | |
325 | * the V4L2-definitions. | |
326 | * | |
327 | * The pixel format is specified as RGBA32 when no conversion | |
328 | * is used. | |
329 | * | |
330 | * Note that this only affects the 32-bit bit depth. | |
331 | * | |
332 | * Use non-zero value to enable conversion. | |
333 | */ | |
ff699e6b | 334 | static int vino_pixel_conversion; |
a637a114 | 335 | |
d203a7ec | 336 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); |
a637a114 | 337 | |
d203a7ec RB |
338 | MODULE_PARM_DESC(pixelconv, |
339 | "enable pixel conversion (non-zero value enables)"); | |
340 | ||
341 | /* Internal data structures */ | |
342 | ||
343 | static struct sgi_vino *vino; | |
344 | ||
345 | static struct vino_settings *vino_drvdata; | |
346 | ||
347 | static const char *vino_driver_name = "vino"; | |
348 | static const char *vino_driver_description = "SGI VINO"; | |
349 | static const char *vino_bus_name = "GIO64 bus"; | |
350 | static const char *vino_v4l_device_name_a = "SGI VINO Channel A"; | |
351 | static const char *vino_v4l_device_name_b = "SGI VINO Channel B"; | |
352 | ||
a637a114 LM |
353 | static void vino_capture_tasklet(unsigned long channel); |
354 | ||
355 | DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); | |
356 | DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); | |
357 | ||
d203a7ec RB |
358 | static const struct vino_input vino_inputs[] = { |
359 | { | |
360 | .name = "Composite", | |
a637a114 LM |
361 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
362 | | V4L2_STD_SECAM, | |
d203a7ec RB |
363 | },{ |
364 | .name = "S-Video", | |
a637a114 LM |
365 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
366 | | V4L2_STD_SECAM, | |
d203a7ec | 367 | },{ |
a637a114 | 368 | .name = "D1/IndyCam", |
d203a7ec RB |
369 | .std = V4L2_STD_NTSC, |
370 | } | |
371 | }; | |
372 | ||
373 | static const struct vino_data_format vino_data_formats[] = { | |
374 | { | |
375 | .description = "8-bit greyscale", | |
376 | .bpp = 1, | |
377 | .pixelformat = V4L2_PIX_FMT_GREY, | |
378 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
379 | },{ | |
380 | .description = "8-bit dithered RGB 3-3-2", | |
381 | .bpp = 1, | |
382 | .pixelformat = V4L2_PIX_FMT_RGB332, | |
383 | .colorspace = V4L2_COLORSPACE_SRGB, | |
384 | },{ | |
385 | .description = "32-bit RGB", | |
386 | .bpp = 4, | |
387 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
388 | .colorspace = V4L2_COLORSPACE_SRGB, | |
389 | },{ | |
390 | .description = "YUV 4:2:2", | |
a637a114 | 391 | .bpp = 2, |
d203a7ec RB |
392 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? |
393 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a637a114 | 394 | } |
d203a7ec RB |
395 | }; |
396 | ||
397 | static const struct vino_data_norm vino_data_norms[] = { | |
398 | { | |
399 | .description = "NTSC", | |
400 | .std = V4L2_STD_NTSC, | |
401 | .fps_min = 6, | |
402 | .fps_max = 30, | |
403 | .framelines = 525, | |
404 | .width = VINO_NTSC_WIDTH, | |
405 | .height = VINO_NTSC_HEIGHT, | |
406 | .odd = { | |
a637a114 LM |
407 | .top = VINO_CLIPPING_START_ODD_NTSC, |
408 | .left = 0, | |
d203a7ec RB |
409 | .bottom = VINO_CLIPPING_START_ODD_NTSC |
410 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 411 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
412 | }, |
413 | .even = { | |
a637a114 LM |
414 | .top = VINO_CLIPPING_START_EVEN_NTSC, |
415 | .left = 0, | |
d203a7ec RB |
416 | .bottom = VINO_CLIPPING_START_EVEN_NTSC |
417 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 418 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
419 | }, |
420 | },{ | |
421 | .description = "PAL", | |
422 | .std = V4L2_STD_PAL, | |
423 | .fps_min = 5, | |
424 | .fps_max = 25, | |
425 | .framelines = 625, | |
426 | .width = VINO_PAL_WIDTH, | |
427 | .height = VINO_PAL_HEIGHT, | |
428 | .odd = { | |
a637a114 LM |
429 | .top = VINO_CLIPPING_START_ODD_PAL, |
430 | .left = 0, | |
d203a7ec RB |
431 | .bottom = VINO_CLIPPING_START_ODD_PAL |
432 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 433 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
434 | }, |
435 | .even = { | |
a637a114 LM |
436 | .top = VINO_CLIPPING_START_EVEN_PAL, |
437 | .left = 0, | |
d203a7ec RB |
438 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
439 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 440 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
441 | }, |
442 | },{ | |
443 | .description = "SECAM", | |
444 | .std = V4L2_STD_SECAM, | |
445 | .fps_min = 5, | |
446 | .fps_max = 25, | |
447 | .framelines = 625, | |
448 | .width = VINO_PAL_WIDTH, | |
449 | .height = VINO_PAL_HEIGHT, | |
450 | .odd = { | |
a637a114 LM |
451 | .top = VINO_CLIPPING_START_ODD_PAL, |
452 | .left = 0, | |
d203a7ec RB |
453 | .bottom = VINO_CLIPPING_START_ODD_PAL |
454 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 455 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
456 | }, |
457 | .even = { | |
a637a114 LM |
458 | .top = VINO_CLIPPING_START_EVEN_PAL, |
459 | .left = 0, | |
d203a7ec RB |
460 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
461 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 462 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
463 | }, |
464 | },{ | |
a637a114 | 465 | .description = "NTSC/D1", |
d203a7ec RB |
466 | .std = V4L2_STD_NTSC, |
467 | .fps_min = 6, | |
468 | .fps_max = 30, | |
469 | .framelines = 525, | |
470 | .width = VINO_NTSC_WIDTH, | |
471 | .height = VINO_NTSC_HEIGHT, | |
472 | .odd = { | |
a637a114 LM |
473 | .top = VINO_CLIPPING_START_ODD_D1, |
474 | .left = 0, | |
d203a7ec RB |
475 | .bottom = VINO_CLIPPING_START_ODD_D1 |
476 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 477 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
478 | }, |
479 | .even = { | |
a637a114 LM |
480 | .top = VINO_CLIPPING_START_EVEN_D1, |
481 | .left = 0, | |
d203a7ec RB |
482 | .bottom = VINO_CLIPPING_START_EVEN_D1 |
483 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 484 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
485 | }, |
486 | } | |
487 | }; | |
488 | ||
489 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 | |
490 | ||
491 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { | |
492 | { | |
493 | .id = V4L2_CID_AUTOGAIN, | |
494 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
495 | .name = "Automatic Gain Control", | |
496 | .minimum = 0, | |
497 | .maximum = 1, | |
498 | .step = 1, | |
499 | .default_value = INDYCAM_AGC_DEFAULT, | |
500 | .flags = 0, | |
a637a114 | 501 | .reserved = { INDYCAM_CONTROL_AGC, 0 }, |
d203a7ec RB |
502 | },{ |
503 | .id = V4L2_CID_AUTO_WHITE_BALANCE, | |
504 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
505 | .name = "Automatic White Balance", | |
506 | .minimum = 0, | |
507 | .maximum = 1, | |
508 | .step = 1, | |
509 | .default_value = INDYCAM_AWB_DEFAULT, | |
510 | .flags = 0, | |
a637a114 | 511 | .reserved = { INDYCAM_CONTROL_AWB, 0 }, |
d203a7ec RB |
512 | },{ |
513 | .id = V4L2_CID_GAIN, | |
514 | .type = V4L2_CTRL_TYPE_INTEGER, | |
515 | .name = "Gain", | |
516 | .minimum = INDYCAM_GAIN_MIN, | |
517 | .maximum = INDYCAM_GAIN_MAX, | |
518 | .step = 1, | |
519 | .default_value = INDYCAM_GAIN_DEFAULT, | |
520 | .flags = 0, | |
a637a114 | 521 | .reserved = { INDYCAM_CONTROL_GAIN, 0 }, |
d203a7ec RB |
522 | },{ |
523 | .id = V4L2_CID_PRIVATE_BASE, | |
524 | .type = V4L2_CTRL_TYPE_INTEGER, | |
525 | .name = "Red Saturation", | |
526 | .minimum = INDYCAM_RED_SATURATION_MIN, | |
527 | .maximum = INDYCAM_RED_SATURATION_MAX, | |
528 | .step = 1, | |
529 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, | |
530 | .flags = 0, | |
a637a114 | 531 | .reserved = { INDYCAM_CONTROL_RED_SATURATION, 0 }, |
d203a7ec RB |
532 | },{ |
533 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
534 | .type = V4L2_CTRL_TYPE_INTEGER, | |
535 | .name = "Blue Saturation", | |
536 | .minimum = INDYCAM_BLUE_SATURATION_MIN, | |
537 | .maximum = INDYCAM_BLUE_SATURATION_MAX, | |
538 | .step = 1, | |
539 | .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, | |
540 | .flags = 0, | |
a637a114 | 541 | .reserved = { INDYCAM_CONTROL_BLUE_SATURATION, 0 }, |
d203a7ec RB |
542 | },{ |
543 | .id = V4L2_CID_RED_BALANCE, | |
544 | .type = V4L2_CTRL_TYPE_INTEGER, | |
545 | .name = "Red Balance", | |
546 | .minimum = INDYCAM_RED_BALANCE_MIN, | |
547 | .maximum = INDYCAM_RED_BALANCE_MAX, | |
548 | .step = 1, | |
549 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, | |
550 | .flags = 0, | |
a637a114 | 551 | .reserved = { INDYCAM_CONTROL_RED_BALANCE, 0 }, |
d203a7ec RB |
552 | },{ |
553 | .id = V4L2_CID_BLUE_BALANCE, | |
554 | .type = V4L2_CTRL_TYPE_INTEGER, | |
555 | .name = "Blue Balance", | |
556 | .minimum = INDYCAM_BLUE_BALANCE_MIN, | |
557 | .maximum = INDYCAM_BLUE_BALANCE_MAX, | |
558 | .step = 1, | |
559 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, | |
560 | .flags = 0, | |
a637a114 | 561 | .reserved = { INDYCAM_CONTROL_BLUE_BALANCE, 0 }, |
d203a7ec RB |
562 | },{ |
563 | .id = V4L2_CID_EXPOSURE, | |
564 | .type = V4L2_CTRL_TYPE_INTEGER, | |
565 | .name = "Shutter Control", | |
566 | .minimum = INDYCAM_SHUTTER_MIN, | |
567 | .maximum = INDYCAM_SHUTTER_MAX, | |
568 | .step = 1, | |
569 | .default_value = INDYCAM_SHUTTER_DEFAULT, | |
570 | .flags = 0, | |
a637a114 | 571 | .reserved = { INDYCAM_CONTROL_SHUTTER, 0 }, |
d203a7ec RB |
572 | },{ |
573 | .id = V4L2_CID_GAMMA, | |
574 | .type = V4L2_CTRL_TYPE_INTEGER, | |
575 | .name = "Gamma", | |
576 | .minimum = INDYCAM_GAMMA_MIN, | |
577 | .maximum = INDYCAM_GAMMA_MAX, | |
578 | .step = 1, | |
579 | .default_value = INDYCAM_GAMMA_DEFAULT, | |
580 | .flags = 0, | |
a637a114 | 581 | .reserved = { INDYCAM_CONTROL_GAMMA, 0 }, |
d203a7ec RB |
582 | } |
583 | }; | |
584 | ||
a637a114 | 585 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 9 |
d203a7ec RB |
586 | |
587 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { | |
588 | { | |
589 | .id = V4L2_CID_HUE, | |
590 | .type = V4L2_CTRL_TYPE_INTEGER, | |
591 | .name = "Hue", | |
592 | .minimum = SAA7191_HUE_MIN, | |
593 | .maximum = SAA7191_HUE_MAX, | |
594 | .step = 1, | |
595 | .default_value = SAA7191_HUE_DEFAULT, | |
596 | .flags = 0, | |
a637a114 | 597 | .reserved = { SAA7191_CONTROL_HUE, 0 }, |
d203a7ec RB |
598 | },{ |
599 | .id = V4L2_CID_PRIVATE_BASE, | |
a637a114 LM |
600 | .type = V4L2_CTRL_TYPE_INTEGER, |
601 | .name = "Luminance Bandpass", | |
602 | .minimum = SAA7191_BANDPASS_MIN, | |
603 | .maximum = SAA7191_BANDPASS_MAX, | |
604 | .step = 1, | |
605 | .default_value = SAA7191_BANDPASS_DEFAULT, | |
606 | .flags = 0, | |
607 | .reserved = { SAA7191_CONTROL_BANDPASS, 0 }, | |
608 | },{ | |
609 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
610 | .type = V4L2_CTRL_TYPE_INTEGER, | |
611 | .name = "Luminance Bandpass Weight", | |
612 | .minimum = SAA7191_BANDPASS_WEIGHT_MIN, | |
613 | .maximum = SAA7191_BANDPASS_WEIGHT_MAX, | |
614 | .step = 1, | |
615 | .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, | |
616 | .flags = 0, | |
617 | .reserved = { SAA7191_CONTROL_BANDPASS_WEIGHT, 0 }, | |
618 | },{ | |
619 | .id = V4L2_CID_PRIVATE_BASE + 2, | |
620 | .type = V4L2_CTRL_TYPE_INTEGER, | |
621 | .name = "HF Luminance Coring", | |
622 | .minimum = SAA7191_CORING_MIN, | |
623 | .maximum = SAA7191_CORING_MAX, | |
624 | .step = 1, | |
625 | .default_value = SAA7191_CORING_DEFAULT, | |
626 | .flags = 0, | |
627 | .reserved = { SAA7191_CONTROL_CORING, 0 }, | |
628 | },{ | |
629 | .id = V4L2_CID_PRIVATE_BASE + 3, | |
630 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
631 | .name = "Force Colour", | |
632 | .minimum = SAA7191_FORCE_COLOUR_MIN, | |
633 | .maximum = SAA7191_FORCE_COLOUR_MAX, | |
634 | .step = 1, | |
635 | .default_value = SAA7191_FORCE_COLOUR_DEFAULT, | |
636 | .flags = 0, | |
637 | .reserved = { SAA7191_CONTROL_FORCE_COLOUR, 0 }, | |
638 | },{ | |
639 | .id = V4L2_CID_PRIVATE_BASE + 4, | |
640 | .type = V4L2_CTRL_TYPE_INTEGER, | |
641 | .name = "Chrominance Gain Control", | |
642 | .minimum = SAA7191_CHROMA_GAIN_MIN, | |
643 | .maximum = SAA7191_CHROMA_GAIN_MAX, | |
644 | .step = 1, | |
645 | .default_value = SAA7191_CHROMA_GAIN_DEFAULT, | |
646 | .flags = 0, | |
647 | .reserved = { SAA7191_CONTROL_CHROMA_GAIN, 0 }, | |
648 | },{ | |
649 | .id = V4L2_CID_PRIVATE_BASE + 5, | |
d203a7ec RB |
650 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
651 | .name = "VTR Time Constant", | |
652 | .minimum = SAA7191_VTRC_MIN, | |
653 | .maximum = SAA7191_VTRC_MAX, | |
654 | .step = 1, | |
655 | .default_value = SAA7191_VTRC_DEFAULT, | |
656 | .flags = 0, | |
a637a114 LM |
657 | .reserved = { SAA7191_CONTROL_VTRC, 0 }, |
658 | },{ | |
659 | .id = V4L2_CID_PRIVATE_BASE + 6, | |
660 | .type = V4L2_CTRL_TYPE_INTEGER, | |
661 | .name = "Luminance Delay Compensation", | |
662 | .minimum = SAA7191_LUMA_DELAY_MIN, | |
663 | .maximum = SAA7191_LUMA_DELAY_MAX, | |
664 | .step = 1, | |
665 | .default_value = SAA7191_LUMA_DELAY_DEFAULT, | |
666 | .flags = 0, | |
667 | .reserved = { SAA7191_CONTROL_LUMA_DELAY, 0 }, | |
668 | },{ | |
669 | .id = V4L2_CID_PRIVATE_BASE + 7, | |
670 | .type = V4L2_CTRL_TYPE_INTEGER, | |
671 | .name = "Vertical Noise Reduction", | |
672 | .minimum = SAA7191_VNR_MIN, | |
673 | .maximum = SAA7191_VNR_MAX, | |
674 | .step = 1, | |
675 | .default_value = SAA7191_VNR_DEFAULT, | |
676 | .flags = 0, | |
677 | .reserved = { SAA7191_CONTROL_VNR, 0 }, | |
d203a7ec | 678 | } |
1da177e4 LT |
679 | }; |
680 | ||
d203a7ec | 681 | /* VINO I2C bus functions */ |
1da177e4 LT |
682 | |
683 | unsigned i2c_vino_getctrl(void *data) | |
684 | { | |
685 | return vino->i2c_control; | |
686 | } | |
687 | ||
688 | void i2c_vino_setctrl(void *data, unsigned val) | |
689 | { | |
690 | vino->i2c_control = val; | |
691 | } | |
692 | ||
693 | unsigned i2c_vino_rdata(void *data) | |
694 | { | |
695 | return vino->i2c_data; | |
696 | } | |
697 | ||
698 | void i2c_vino_wdata(void *data, unsigned val) | |
699 | { | |
700 | vino->i2c_data = val; | |
701 | } | |
702 | ||
703 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = | |
704 | { | |
705 | .getctrl = &i2c_vino_getctrl, | |
706 | .setctrl = &i2c_vino_setctrl, | |
707 | .rdata = &i2c_vino_rdata, | |
708 | .wdata = &i2c_vino_wdata, | |
709 | .xfer_timeout = 200, | |
710 | .ack_timeout = 1000, | |
711 | }; | |
712 | ||
713 | /* | |
714 | * There are two possible clients on VINO I2C bus, so we limit usage only | |
715 | * to them. | |
716 | */ | |
717 | static int i2c_vino_client_reg(struct i2c_client *client) | |
718 | { | |
a637a114 | 719 | unsigned long flags; |
d203a7ec | 720 | int ret = 0; |
1da177e4 | 721 | |
a637a114 | 722 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
1da177e4 LT |
723 | switch (client->driver->id) { |
724 | case I2C_DRIVERID_SAA7191: | |
d203a7ec RB |
725 | if (vino_drvdata->decoder.driver) |
726 | ret = -EBUSY; | |
1da177e4 | 727 | else |
d203a7ec | 728 | vino_drvdata->decoder.driver = client; |
1da177e4 LT |
729 | break; |
730 | case I2C_DRIVERID_INDYCAM: | |
d203a7ec RB |
731 | if (vino_drvdata->camera.driver) |
732 | ret = -EBUSY; | |
1da177e4 | 733 | else |
d203a7ec | 734 | vino_drvdata->camera.driver = client; |
1da177e4 LT |
735 | break; |
736 | default: | |
d203a7ec | 737 | ret = -ENODEV; |
1da177e4 | 738 | } |
a637a114 | 739 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 740 | |
d203a7ec | 741 | return ret; |
1da177e4 LT |
742 | } |
743 | ||
744 | static int i2c_vino_client_unreg(struct i2c_client *client) | |
745 | { | |
a637a114 | 746 | unsigned long flags; |
d203a7ec | 747 | int ret = 0; |
1da177e4 | 748 | |
a637a114 | 749 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
750 | if (client == vino_drvdata->decoder.driver) { |
751 | if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL) | |
752 | ret = -EBUSY; | |
1da177e4 | 753 | else |
d203a7ec RB |
754 | vino_drvdata->decoder.driver = NULL; |
755 | } else if (client == vino_drvdata->camera.driver) { | |
756 | if (vino_drvdata->camera.owner != VINO_NO_CHANNEL) | |
757 | ret = -EBUSY; | |
1da177e4 | 758 | else |
d203a7ec | 759 | vino_drvdata->camera.driver = NULL; |
1da177e4 | 760 | } |
a637a114 | 761 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 762 | |
d203a7ec | 763 | return ret; |
1da177e4 LT |
764 | } |
765 | ||
766 | static struct i2c_adapter vino_i2c_adapter = | |
767 | { | |
768 | .name = "VINO I2C bus", | |
769 | .id = I2C_HW_SGI_VINO, | |
770 | .algo_data = &i2c_sgi_vino_data, | |
771 | .client_register = &i2c_vino_client_reg, | |
772 | .client_unregister = &i2c_vino_client_unreg, | |
773 | }; | |
774 | ||
775 | static int vino_i2c_add_bus(void) | |
776 | { | |
777 | return i2c_sgi_add_bus(&vino_i2c_adapter); | |
778 | } | |
779 | ||
780 | static int vino_i2c_del_bus(void) | |
781 | { | |
3269711b | 782 | return i2c_del_adapter(&vino_i2c_adapter); |
1da177e4 LT |
783 | } |
784 | ||
d203a7ec RB |
785 | static int i2c_camera_command(unsigned int cmd, void *arg) |
786 | { | |
787 | return vino_drvdata->camera.driver-> | |
788 | driver->command(vino_drvdata->camera.driver, | |
789 | cmd, arg); | |
790 | } | |
1da177e4 | 791 | |
d203a7ec | 792 | static int i2c_decoder_command(unsigned int cmd, void *arg) |
1da177e4 | 793 | { |
d203a7ec RB |
794 | return vino_drvdata->decoder.driver-> |
795 | driver->command(vino_drvdata->decoder.driver, | |
796 | cmd, arg); | |
1da177e4 LT |
797 | } |
798 | ||
d203a7ec RB |
799 | /* VINO framebuffer/DMA descriptor management */ |
800 | ||
801 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, | |
802 | unsigned int count) | |
1da177e4 | 803 | { |
d203a7ec | 804 | unsigned int i; |
1da177e4 | 805 | |
d203a7ec RB |
806 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
807 | ||
808 | for (i = 0; i < count; i++) { | |
eda9e4e2 | 809 | ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec RB |
810 | dma_unmap_single(NULL, |
811 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
812 | PAGE_SIZE, DMA_FROM_DEVICE); | |
813 | free_page(fb->desc_table.virtual[i]); | |
814 | } | |
815 | ||
816 | dma_free_coherent(NULL, | |
817 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * | |
818 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, | |
819 | fb->desc_table.dma); | |
820 | kfree(fb->desc_table.virtual); | |
821 | ||
822 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
823 | } | |
824 | ||
825 | static void vino_free_buffer(struct vino_framebuffer *fb) | |
826 | { | |
827 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); | |
1da177e4 LT |
828 | } |
829 | ||
d203a7ec RB |
830 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
831 | unsigned int size) | |
1da177e4 | 832 | { |
d203a7ec RB |
833 | unsigned int count, i, j; |
834 | int ret = 0; | |
835 | ||
836 | dprintk("vino_allocate_buffer():\n"); | |
837 | ||
838 | if (size < 1) | |
839 | return -EINVAL; | |
840 | ||
841 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
842 | ||
843 | count = ((size / PAGE_SIZE) + 4) & ~3; | |
844 | ||
845 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", | |
846 | size, count); | |
847 | ||
848 | /* allocate memory for table with virtual (page) addresses */ | |
849 | fb->desc_table.virtual = (unsigned long *) | |
850 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
851 | if (!fb->desc_table.virtual) | |
852 | return -ENOMEM; | |
853 | ||
854 | /* allocate memory for table with dma addresses | |
855 | * (has space for four extra descriptors) */ | |
856 | fb->desc_table.dma_cpu = | |
857 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
858 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
859 | GFP_KERNEL | GFP_DMA); | |
860 | if (!fb->desc_table.dma_cpu) { | |
861 | ret = -ENOMEM; | |
862 | goto out_free_virtual; | |
863 | } | |
864 | ||
865 | /* allocate pages for the buffer and acquire the according | |
866 | * dma addresses */ | |
867 | for (i = 0; i < count; i++) { | |
868 | dma_addr_t dma_data_addr; | |
869 | ||
870 | fb->desc_table.virtual[i] = | |
871 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
872 | if (!fb->desc_table.virtual[i]) { | |
873 | ret = -ENOBUFS; | |
874 | break; | |
875 | } | |
876 | ||
877 | dma_data_addr = | |
878 | dma_map_single(NULL, | |
879 | (void *)fb->desc_table.virtual[i], | |
880 | PAGE_SIZE, DMA_FROM_DEVICE); | |
881 | ||
882 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
883 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
884 | dma_data_addr + VINO_PAGE_SIZE * j; | |
885 | } | |
886 | ||
eda9e4e2 | 887 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec RB |
888 | } |
889 | ||
890 | /* page_count needs to be set anyway, because the descriptor table has | |
891 | * been allocated according to this number */ | |
892 | fb->desc_table.page_count = count; | |
893 | ||
894 | if (ret) { | |
895 | /* the descriptor with index i doesn't contain | |
896 | * a valid address yet */ | |
897 | vino_free_buffer_with_count(fb, i); | |
898 | return ret; | |
899 | } | |
900 | ||
901 | //fb->size = size; | |
902 | fb->size = count * PAGE_SIZE; | |
903 | fb->data_format = VINO_DATA_FMT_NONE; | |
904 | ||
905 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
906 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
907 | return 0; | |
908 | ||
909 | out_free_virtual: | |
910 | kfree(fb->desc_table.virtual); | |
911 | return ret; | |
1da177e4 LT |
912 | } |
913 | ||
d203a7ec RB |
914 | #if 0 |
915 | /* user buffers not fully implemented yet */ | |
916 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, | |
917 | void *user, | |
918 | unsigned int size) | |
1da177e4 | 919 | { |
d203a7ec RB |
920 | unsigned int count, i, j; |
921 | int ret = 0; | |
922 | ||
923 | dprintk("vino_prepare_user_buffer():\n"); | |
924 | ||
925 | if (size < 1) | |
926 | return -EINVAL; | |
927 | ||
928 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
929 | ||
930 | count = ((size / PAGE_SIZE)) & ~3; | |
931 | ||
932 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", | |
933 | size, count); | |
934 | ||
935 | /* allocate memory for table with virtual (page) addresses */ | |
936 | fb->desc_table.virtual = (unsigned long *) | |
937 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
938 | if (!fb->desc_table.virtual) | |
939 | return -ENOMEM; | |
940 | ||
941 | /* allocate memory for table with dma addresses | |
942 | * (has space for four extra descriptors) */ | |
943 | fb->desc_table.dma_cpu = | |
944 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
945 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
946 | GFP_KERNEL | GFP_DMA); | |
947 | if (!fb->desc_table.dma_cpu) { | |
948 | ret = -ENOMEM; | |
949 | goto out_free_virtual; | |
950 | } | |
951 | ||
952 | /* allocate pages for the buffer and acquire the according | |
953 | * dma addresses */ | |
954 | for (i = 0; i < count; i++) { | |
955 | dma_addr_t dma_data_addr; | |
956 | ||
957 | fb->desc_table.virtual[i] = | |
958 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
959 | if (!fb->desc_table.virtual[i]) { | |
960 | ret = -ENOBUFS; | |
961 | break; | |
962 | } | |
963 | ||
964 | dma_data_addr = | |
965 | dma_map_single(NULL, | |
966 | (void *)fb->desc_table.virtual[i], | |
967 | PAGE_SIZE, DMA_FROM_DEVICE); | |
968 | ||
969 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
970 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
971 | dma_data_addr + VINO_PAGE_SIZE * j; | |
972 | } | |
973 | ||
eda9e4e2 | 974 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec | 975 | } |
1da177e4 | 976 | |
d203a7ec RB |
977 | /* page_count needs to be set anyway, because the descriptor table has |
978 | * been allocated according to this number */ | |
979 | fb->desc_table.page_count = count; | |
980 | ||
981 | if (ret) { | |
982 | /* the descriptor with index i doesn't contain | |
983 | * a valid address yet */ | |
984 | vino_free_buffer_with_count(fb, i); | |
985 | return ret; | |
986 | } | |
987 | ||
988 | //fb->size = size; | |
989 | fb->size = count * PAGE_SIZE; | |
990 | ||
991 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
992 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
993 | return 0; | |
994 | ||
995 | out_free_virtual: | |
996 | kfree(fb->desc_table.virtual); | |
997 | return ret; | |
1da177e4 | 998 | } |
d203a7ec | 999 | #endif |
1da177e4 | 1000 | |
d203a7ec | 1001 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
1da177e4 | 1002 | { |
d203a7ec RB |
1003 | int i; |
1004 | ||
1005 | dprintk("vino_sync_buffer():\n"); | |
1da177e4 | 1006 | |
d203a7ec RB |
1007 | for (i = 0; i < fb->desc_table.page_count; i++) |
1008 | dma_sync_single(NULL, | |
1009 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
1010 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1da177e4 LT |
1011 | } |
1012 | ||
d203a7ec | 1013 | /* Framebuffer fifo functions (need to be locked externally) */ |
1da177e4 | 1014 | |
a637a114 | 1015 | static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, |
d203a7ec | 1016 | unsigned int length) |
1da177e4 | 1017 | { |
d203a7ec RB |
1018 | f->length = 0; |
1019 | f->used = 0; | |
1020 | f->head = 0; | |
1021 | f->tail = 0; | |
1da177e4 | 1022 | |
a637a114 LM |
1023 | if (length > VINO_FRAMEBUFFER_COUNT_MAX) |
1024 | length = VINO_FRAMEBUFFER_COUNT_MAX; | |
1da177e4 | 1025 | |
d203a7ec RB |
1026 | f->length = length; |
1027 | } | |
1028 | ||
1029 | /* returns true/false */ | |
a637a114 LM |
1030 | static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, |
1031 | unsigned int id) | |
d203a7ec RB |
1032 | { |
1033 | unsigned int i; | |
a637a114 | 1034 | |
d203a7ec RB |
1035 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { |
1036 | if (f->data[i] == id) | |
1037 | return 1; | |
1da177e4 LT |
1038 | } |
1039 | ||
d203a7ec RB |
1040 | return 0; |
1041 | } | |
1da177e4 | 1042 | |
a637a114 | 1043 | #if 0 |
d203a7ec | 1044 | /* returns true/false */ |
a637a114 | 1045 | static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1046 | { |
1047 | return (f->used == f->length); | |
1048 | } | |
a637a114 | 1049 | #endif |
d203a7ec | 1050 | |
a637a114 | 1051 | static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1052 | { |
1053 | return f->used; | |
1054 | } | |
1055 | ||
1056 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) | |
1057 | { | |
1058 | if (id >= f->length) { | |
1059 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1060 | } |
d203a7ec RB |
1061 | |
1062 | if (vino_fifo_has_id(f, id)) { | |
1063 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1064 | } |
1da177e4 | 1065 | |
d203a7ec RB |
1066 | if (f->used < f->length) { |
1067 | f->data[f->tail] = id; | |
1068 | f->tail = (f->tail + 1) % f->length; | |
1069 | f->used++; | |
1070 | } else { | |
1071 | return VINO_QUEUE_ERROR; | |
1da177e4 LT |
1072 | } |
1073 | ||
d203a7ec RB |
1074 | return 0; |
1075 | } | |
1076 | ||
1077 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1078 | { | |
1079 | if (f->used > 0) { | |
1080 | *id = f->data[f->head]; | |
1081 | } else { | |
1082 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1083 | } |
1da177e4 | 1084 | |
d203a7ec RB |
1085 | return 0; |
1086 | } | |
1087 | ||
1088 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1089 | { | |
1090 | if (f->used > 0) { | |
1091 | *id = f->data[f->head]; | |
1092 | f->head = (f->head + 1) % f->length; | |
1093 | f->used--; | |
1094 | } else { | |
1095 | return VINO_QUEUE_ERROR; | |
1096 | } | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1da177e4 | 1100 | |
d203a7ec | 1101 | /* Framebuffer queue functions */ |
1da177e4 | 1102 | |
d203a7ec RB |
1103 | /* execute with queue_lock locked */ |
1104 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, | |
1105 | unsigned int length) | |
1106 | { | |
1107 | unsigned int i; | |
1108 | ||
1109 | q->length = 0; | |
1110 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); | |
1111 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); | |
1112 | for (i = 0; i < length; i++) { | |
1113 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", | |
1114 | i); | |
1115 | vino_free_buffer(q->buffer[i]); | |
1116 | kfree(q->buffer[i]); | |
1da177e4 LT |
1117 | } |
1118 | ||
d203a7ec RB |
1119 | q->type = VINO_MEMORY_NONE; |
1120 | q->magic = 0; | |
1121 | } | |
1122 | ||
1123 | static void vino_queue_free(struct vino_framebuffer_queue *q) | |
1124 | { | |
1125 | dprintk("vino_queue_free():\n"); | |
1126 | ||
1127 | if (q->magic != VINO_QUEUE_MAGIC) | |
1128 | return; | |
1129 | if (q->type != VINO_MEMORY_MMAP) | |
1130 | return; | |
1131 | ||
3593cab5 | 1132 | mutex_lock(&q->queue_mutex); |
d203a7ec RB |
1133 | |
1134 | vino_queue_free_with_count(q, q->length); | |
1135 | ||
3593cab5 | 1136 | mutex_unlock(&q->queue_mutex); |
d203a7ec RB |
1137 | } |
1138 | ||
1139 | static int vino_queue_init(struct vino_framebuffer_queue *q, | |
1140 | unsigned int *length) | |
1141 | { | |
1142 | unsigned int i; | |
1143 | int ret = 0; | |
1144 | ||
1145 | dprintk("vino_queue_init(): length = %d\n", *length); | |
1146 | ||
1147 | if (q->magic == VINO_QUEUE_MAGIC) { | |
1148 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1149 | return -EINVAL; | |
1da177e4 LT |
1150 | } |
1151 | ||
d203a7ec RB |
1152 | if (q->type != VINO_MEMORY_NONE) { |
1153 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1154 | return -EINVAL; | |
1da177e4 | 1155 | } |
d203a7ec RB |
1156 | |
1157 | if (*length < 1) | |
1158 | return -EINVAL; | |
1159 | ||
3593cab5 | 1160 | mutex_lock(&q->queue_mutex); |
d203a7ec | 1161 | |
a637a114 LM |
1162 | if (*length > VINO_FRAMEBUFFER_COUNT_MAX) |
1163 | *length = VINO_FRAMEBUFFER_COUNT_MAX; | |
d203a7ec RB |
1164 | |
1165 | q->length = 0; | |
1166 | ||
1167 | for (i = 0; i < *length; i++) { | |
1168 | dprintk("vino_queue_init(): allocating buffer %d\n", i); | |
1169 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), | |
1170 | GFP_KERNEL); | |
1171 | if (!q->buffer[i]) { | |
1172 | dprintk("vino_queue_init(): kmalloc() failed\n"); | |
1173 | ret = -ENOMEM; | |
1174 | break; | |
1175 | } | |
1176 | ||
1177 | ret = vino_allocate_buffer(q->buffer[i], | |
1178 | VINO_FRAMEBUFFER_SIZE); | |
1179 | if (ret) { | |
1180 | kfree(q->buffer[i]); | |
1181 | dprintk("vino_queue_init(): " | |
1182 | "vino_allocate_buffer() failed\n"); | |
1183 | break; | |
1184 | } | |
1185 | ||
1186 | q->buffer[i]->id = i; | |
1187 | if (i > 0) { | |
1188 | q->buffer[i]->offset = q->buffer[i - 1]->offset + | |
1189 | q->buffer[i - 1]->size; | |
1190 | } else { | |
1191 | q->buffer[i]->offset = 0; | |
1192 | } | |
1193 | ||
1194 | spin_lock_init(&q->buffer[i]->state_lock); | |
1195 | ||
1196 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " | |
1197 | "size = %d\n", i, q->buffer[i]->offset, | |
1198 | q->buffer[i]->size); | |
1da177e4 LT |
1199 | } |
1200 | ||
d203a7ec RB |
1201 | if (ret) { |
1202 | vino_queue_free_with_count(q, i); | |
1203 | *length = 0; | |
1204 | } else { | |
1205 | q->length = *length; | |
1206 | vino_fifo_init(&q->in, q->length); | |
1207 | vino_fifo_init(&q->out, q->length); | |
1208 | q->type = VINO_MEMORY_MMAP; | |
1209 | q->magic = VINO_QUEUE_MAGIC; | |
1210 | } | |
1da177e4 | 1211 | |
3593cab5 | 1212 | mutex_unlock(&q->queue_mutex); |
1da177e4 LT |
1213 | |
1214 | return ret; | |
1215 | } | |
1216 | ||
d203a7ec RB |
1217 | static struct vino_framebuffer *vino_queue_add(struct |
1218 | vino_framebuffer_queue *q, | |
1219 | unsigned int id) | |
1da177e4 | 1220 | { |
d203a7ec RB |
1221 | struct vino_framebuffer *ret = NULL; |
1222 | unsigned int total; | |
1223 | unsigned long flags; | |
1224 | ||
1225 | dprintk("vino_queue_add(): id = %d\n", id); | |
1226 | ||
1227 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1228 | return ret; | |
1229 | } | |
1230 | ||
1231 | spin_lock_irqsave(&q->queue_lock, flags); | |
1232 | ||
1233 | if (q->length == 0) | |
1234 | goto out; | |
1235 | ||
1236 | if (id >= q->length) | |
1237 | goto out; | |
1238 | ||
1239 | /* not needed?: if (vino_fifo_full(&q->out)) { | |
1240 | goto out; | |
1241 | }*/ | |
1242 | /* check that outgoing queue isn't already full | |
1243 | * (or that it won't become full) */ | |
1244 | total = vino_fifo_get_used(&q->in) + | |
1245 | vino_fifo_get_used(&q->out); | |
1246 | if (total >= q->length) | |
1247 | goto out; | |
1248 | ||
1249 | if (vino_fifo_enqueue(&q->in, id)) | |
1250 | goto out; | |
1251 | ||
1252 | ret = q->buffer[id]; | |
1253 | ||
1254 | out: | |
1255 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1256 | ||
1257 | return ret; | |
1da177e4 LT |
1258 | } |
1259 | ||
d203a7ec RB |
1260 | static struct vino_framebuffer *vino_queue_transfer(struct |
1261 | vino_framebuffer_queue *q) | |
1262 | { | |
1263 | struct vino_framebuffer *ret = NULL; | |
1264 | struct vino_framebuffer *fb; | |
1265 | int id; | |
1266 | unsigned long flags; | |
1da177e4 | 1267 | |
d203a7ec RB |
1268 | dprintk("vino_queue_transfer():\n"); |
1269 | ||
1270 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1271 | return ret; | |
1272 | } | |
1273 | ||
1274 | spin_lock_irqsave(&q->queue_lock, flags); | |
1275 | ||
1276 | if (q->length == 0) | |
1277 | goto out; | |
1278 | ||
1279 | // now this actually removes an entry from the incoming queue | |
1280 | if (vino_fifo_dequeue(&q->in, &id)) { | |
1281 | goto out; | |
1282 | } | |
1283 | ||
1284 | dprintk("vino_queue_transfer(): id = %d\n", id); | |
1285 | fb = q->buffer[id]; | |
1286 | ||
1287 | // we have already checked that the outgoing queue is not full, but... | |
1288 | if (vino_fifo_enqueue(&q->out, id)) { | |
1289 | printk(KERN_ERR "vino_queue_transfer(): " | |
1290 | "outgoing queue is full, this shouldn't happen!\n"); | |
1291 | goto out; | |
1292 | } | |
1293 | ||
1294 | ret = fb; | |
1295 | out: | |
1296 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1297 | ||
1298 | return ret; | |
1299 | } | |
1300 | ||
1301 | /* returns true/false */ | |
1302 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, | |
1303 | unsigned int id) | |
1304 | { | |
1305 | int ret = 0; | |
1306 | unsigned long flags; | |
1307 | ||
1308 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1309 | return ret; | |
1310 | } | |
1311 | ||
1312 | spin_lock_irqsave(&q->queue_lock, flags); | |
1313 | ||
1314 | if (q->length == 0) | |
1315 | goto out; | |
1316 | ||
1317 | ret = vino_fifo_has_id(&q->in, id); | |
1318 | ||
1319 | out: | |
1320 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1321 | ||
1322 | return ret; | |
1323 | } | |
1324 | ||
1325 | /* returns true/false */ | |
1326 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, | |
1327 | unsigned int id) | |
1328 | { | |
1329 | int ret = 0; | |
1330 | unsigned long flags; | |
1331 | ||
1332 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1333 | return ret; | |
1334 | } | |
1335 | ||
1336 | spin_lock_irqsave(&q->queue_lock, flags); | |
1337 | ||
1338 | if (q->length == 0) | |
1339 | goto out; | |
1340 | ||
1341 | ret = vino_fifo_has_id(&q->out, id); | |
1342 | ||
1343 | out: | |
1344 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1345 | ||
1346 | return ret; | |
1347 | } | |
1348 | ||
1349 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, | |
1350 | unsigned int *used) | |
1351 | { | |
1352 | int ret = 0; | |
1353 | unsigned long flags; | |
1354 | ||
1355 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1356 | return VINO_QUEUE_ERROR; | |
1357 | } | |
1358 | ||
1359 | spin_lock_irqsave(&q->queue_lock, flags); | |
1360 | ||
1361 | if (q->length == 0) { | |
1362 | ret = VINO_QUEUE_ERROR; | |
1363 | goto out; | |
1364 | } | |
1365 | ||
1366 | *used = vino_fifo_get_used(&q->in); | |
1367 | ||
1368 | out: | |
1369 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1370 | ||
1371 | return ret; | |
1372 | } | |
1373 | ||
1374 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, | |
1375 | unsigned int *used) | |
1376 | { | |
1377 | int ret = 0; | |
1378 | unsigned long flags; | |
1379 | ||
1380 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1381 | return VINO_QUEUE_ERROR; | |
1382 | } | |
1383 | ||
1384 | spin_lock_irqsave(&q->queue_lock, flags); | |
1385 | ||
1386 | if (q->length == 0) { | |
1387 | ret = VINO_QUEUE_ERROR; | |
1388 | goto out; | |
1389 | } | |
1390 | ||
1391 | *used = vino_fifo_get_used(&q->out); | |
1392 | ||
1393 | out: | |
1394 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1395 | ||
1396 | return ret; | |
1397 | } | |
1398 | ||
a637a114 | 1399 | #if 0 |
d203a7ec RB |
1400 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, |
1401 | unsigned int *total) | |
1402 | { | |
1403 | int ret = 0; | |
1404 | unsigned long flags; | |
1405 | ||
1406 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1407 | return VINO_QUEUE_ERROR; | |
1408 | } | |
1409 | ||
1410 | spin_lock_irqsave(&q->queue_lock, flags); | |
1411 | ||
1412 | if (q->length == 0) { | |
1413 | ret = VINO_QUEUE_ERROR; | |
1414 | goto out; | |
1415 | } | |
1416 | ||
1417 | *total = vino_fifo_get_used(&q->in) + | |
1418 | vino_fifo_get_used(&q->out); | |
1419 | ||
1420 | out: | |
1421 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1422 | ||
1423 | return ret; | |
1424 | } | |
a637a114 | 1425 | #endif |
d203a7ec RB |
1426 | |
1427 | static struct vino_framebuffer *vino_queue_peek(struct | |
1428 | vino_framebuffer_queue *q, | |
1429 | unsigned int *id) | |
1430 | { | |
1431 | struct vino_framebuffer *ret = NULL; | |
1432 | unsigned long flags; | |
1433 | ||
1434 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1435 | return ret; | |
1436 | } | |
1437 | ||
1438 | spin_lock_irqsave(&q->queue_lock, flags); | |
1439 | ||
1440 | if (q->length == 0) | |
1441 | goto out; | |
1442 | ||
1443 | if (vino_fifo_peek(&q->in, id)) { | |
1444 | goto out; | |
1445 | } | |
1446 | ||
1447 | ret = q->buffer[*id]; | |
1448 | out: | |
1449 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1450 | ||
1451 | return ret; | |
1452 | } | |
1453 | ||
1454 | static struct vino_framebuffer *vino_queue_remove(struct | |
1455 | vino_framebuffer_queue *q, | |
1456 | unsigned int *id) | |
1457 | { | |
1458 | struct vino_framebuffer *ret = NULL; | |
1459 | unsigned long flags; | |
1460 | dprintk("vino_queue_remove():\n"); | |
1461 | ||
1462 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1463 | return ret; | |
1464 | } | |
1465 | ||
1466 | spin_lock_irqsave(&q->queue_lock, flags); | |
1467 | ||
1468 | if (q->length == 0) | |
1469 | goto out; | |
1470 | ||
1471 | if (vino_fifo_dequeue(&q->out, id)) { | |
1472 | goto out; | |
1473 | } | |
1474 | ||
1475 | dprintk("vino_queue_remove(): id = %d\n", *id); | |
1476 | ret = q->buffer[*id]; | |
1477 | out: | |
1478 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1479 | ||
1480 | return ret; | |
1481 | } | |
1482 | ||
1483 | static struct | |
1484 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, | |
1485 | unsigned int id) | |
1486 | { | |
1487 | struct vino_framebuffer *ret = NULL; | |
1488 | unsigned long flags; | |
1489 | ||
1490 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1491 | return ret; | |
1492 | } | |
1493 | ||
1494 | spin_lock_irqsave(&q->queue_lock, flags); | |
1495 | ||
1496 | if (q->length == 0) | |
1497 | goto out; | |
1498 | ||
1499 | if (id >= q->length) | |
1500 | goto out; | |
1501 | ||
1502 | ret = q->buffer[id]; | |
1503 | out: | |
1504 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1505 | ||
1506 | return ret; | |
1507 | } | |
1508 | ||
1509 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) | |
1510 | { | |
1511 | unsigned int length = 0; | |
1512 | unsigned long flags; | |
1513 | ||
1514 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1515 | return length; | |
1516 | } | |
1517 | ||
1518 | spin_lock_irqsave(&q->queue_lock, flags); | |
1519 | length = q->length; | |
1520 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1521 | ||
1522 | return length; | |
1523 | } | |
1524 | ||
1525 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) | |
1526 | { | |
1527 | unsigned int i; | |
1528 | int ret = 0; | |
1529 | unsigned long flags; | |
1530 | ||
1531 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1532 | return ret; | |
1533 | } | |
1534 | ||
1535 | spin_lock_irqsave(&q->queue_lock, flags); | |
1536 | for (i = 0; i < q->length; i++) { | |
1537 | if (q->buffer[i]->map_count > 0) { | |
1538 | ret = 1; | |
1539 | break; | |
1540 | } | |
1541 | } | |
1542 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1543 | ||
1544 | return ret; | |
1545 | } | |
1546 | ||
1547 | /* VINO functions */ | |
1548 | ||
1549 | /* execute with input_lock locked */ | |
1550 | static void vino_update_line_size(struct vino_channel_settings *vcs) | |
1551 | { | |
1552 | unsigned int w = vcs->clipping.right - vcs->clipping.left; | |
1553 | unsigned int d = vcs->decimation; | |
1554 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; | |
d56410e0 | 1555 | unsigned int lsize; |
d203a7ec RB |
1556 | |
1557 | dprintk("update_line_size(): before: w = %d, d = %d, " | |
1558 | "line_size = %d\n", w, d, vcs->line_size); | |
a637a114 | 1559 | |
d56410e0 | 1560 | /* line size must be multiple of 8 bytes */ |
d203a7ec RB |
1561 | lsize = (bpp * (w / d)) & ~7; |
1562 | w = (lsize / bpp) * d; | |
1563 | ||
1564 | vcs->clipping.right = vcs->clipping.left + w; | |
1565 | vcs->line_size = lsize; | |
a637a114 | 1566 | |
d203a7ec RB |
1567 | dprintk("update_line_size(): after: w = %d, d = %d, " |
1568 | "line_size = %d\n", w, d, vcs->line_size); | |
1569 | } | |
1570 | ||
1571 | /* execute with input_lock locked */ | |
1572 | static void vino_set_clipping(struct vino_channel_settings *vcs, | |
1573 | unsigned int x, unsigned int y, | |
1574 | unsigned int w, unsigned int h) | |
1575 | { | |
1576 | unsigned int maxwidth, maxheight; | |
1577 | unsigned int d; | |
1578 | ||
1579 | maxwidth = vino_data_norms[vcs->data_norm].width; | |
1580 | maxheight = vino_data_norms[vcs->data_norm].height; | |
1581 | d = vcs->decimation; | |
1582 | ||
1583 | y &= ~1; /* odd/even fields */ | |
1584 | ||
1585 | if (x > maxwidth) { | |
1586 | x = 0; | |
1587 | } | |
1588 | if (y > maxheight) { | |
1589 | y = 0; | |
1590 | } | |
1591 | ||
1592 | if (((w / d) < VINO_MIN_WIDTH) | |
1593 | || ((h / d) < VINO_MIN_HEIGHT)) { | |
1594 | w = VINO_MIN_WIDTH * d; | |
1595 | h = VINO_MIN_HEIGHT * d; | |
1596 | } | |
1597 | ||
1598 | if ((x + w) > maxwidth) { | |
1599 | w = maxwidth - x; | |
1600 | if ((w / d) < VINO_MIN_WIDTH) | |
1601 | x = maxwidth - VINO_MIN_WIDTH * d; | |
1602 | } | |
1603 | if ((y + h) > maxheight) { | |
1604 | h = maxheight - y; | |
1605 | if ((h / d) < VINO_MIN_HEIGHT) | |
1606 | y = maxheight - VINO_MIN_HEIGHT * d; | |
1607 | } | |
1608 | ||
1609 | vcs->clipping.left = x; | |
1610 | vcs->clipping.top = y; | |
1611 | vcs->clipping.right = x + w; | |
1612 | vcs->clipping.bottom = y + h; | |
1613 | ||
1614 | vino_update_line_size(vcs); | |
1615 | ||
1616 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", | |
1617 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, | |
1618 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); | |
1619 | } | |
1620 | ||
1621 | /* execute with input_lock locked */ | |
a637a114 | 1622 | static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) |
d203a7ec RB |
1623 | { |
1624 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, | |
1625 | vino_data_norms[vcs->data_norm].height); | |
1626 | } | |
1627 | ||
1628 | /* execute with input_lock locked */ | |
1629 | static void vino_set_scaling(struct vino_channel_settings *vcs, | |
1630 | unsigned int w, unsigned int h) | |
1631 | { | |
1632 | unsigned int x, y, curw, curh, d; | |
1633 | ||
1634 | x = vcs->clipping.left; | |
1635 | y = vcs->clipping.top; | |
1636 | curw = vcs->clipping.right - vcs->clipping.left; | |
1637 | curh = vcs->clipping.bottom - vcs->clipping.top; | |
1638 | ||
1639 | d = max(curw / w, curh / h); | |
1640 | ||
1641 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", | |
1642 | w, h, curw, curh, d); | |
1643 | ||
1644 | if (d < 1) { | |
1645 | d = 1; | |
a637a114 | 1646 | } else if (d > 8) { |
d203a7ec RB |
1647 | d = 8; |
1648 | } | |
1649 | ||
1650 | vcs->decimation = d; | |
1651 | vino_set_clipping(vcs, x, y, w * d, h * d); | |
1652 | ||
1653 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, | |
1654 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, | |
1655 | vcs->decimation, vcs->line_size); | |
1656 | } | |
1657 | ||
1658 | /* execute with input_lock locked */ | |
a637a114 | 1659 | static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) |
d203a7ec RB |
1660 | { |
1661 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, | |
1662 | vcs->clipping.bottom - vcs->clipping.top); | |
1663 | } | |
1664 | ||
1665 | /* execute with input_lock locked */ | |
1666 | static void vino_set_framerate(struct vino_channel_settings *vcs, | |
1667 | unsigned int fps) | |
1668 | { | |
1669 | unsigned int mask; | |
1670 | ||
1671 | switch (vcs->data_norm) { | |
1672 | case VINO_DATA_NORM_NTSC: | |
1673 | case VINO_DATA_NORM_D1: | |
1674 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! | |
1675 | ||
1676 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1677 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1678 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1679 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1680 | ||
1681 | switch (fps) { | |
1682 | case 6: | |
1683 | mask = 0x003; | |
1684 | break; | |
1685 | case 12: | |
1686 | mask = 0x0c3; | |
1687 | break; | |
1688 | case 18: | |
1689 | mask = 0x333; | |
1690 | break; | |
1691 | case 24: | |
1692 | mask = 0x3ff; | |
1693 | break; | |
1694 | case 30: | |
1695 | mask = 0xfff; | |
1696 | break; | |
1697 | default: | |
1698 | mask = VINO_FRAMERT_FULL; | |
1699 | } | |
1700 | vcs->framert_reg = VINO_FRAMERT_RT(mask); | |
1701 | break; | |
1702 | case VINO_DATA_NORM_PAL: | |
1703 | case VINO_DATA_NORM_SECAM: | |
1704 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! | |
1705 | ||
1706 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1707 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1708 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1709 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1710 | ||
1711 | switch (fps) { | |
1712 | case 5: | |
1713 | mask = 0x003; | |
1714 | break; | |
1715 | case 10: | |
1716 | mask = 0x0c3; | |
1717 | break; | |
1718 | case 15: | |
1719 | mask = 0x333; | |
1720 | break; | |
1721 | case 20: | |
1722 | mask = 0x0ff; | |
1723 | break; | |
1724 | case 25: | |
1725 | mask = 0x3ff; | |
1726 | break; | |
1727 | default: | |
1728 | mask = VINO_FRAMERT_FULL; | |
1729 | } | |
1730 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; | |
1731 | break; | |
1732 | } | |
1733 | ||
1734 | vcs->fps = fps; | |
1735 | } | |
1736 | ||
1737 | /* execute with input_lock locked */ | |
a637a114 LM |
1738 | static inline void vino_set_default_framerate(struct |
1739 | vino_channel_settings *vcs) | |
d203a7ec RB |
1740 | { |
1741 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); | |
1742 | } | |
1743 | ||
1744 | /* | |
1745 | * Prepare VINO for DMA transfer... | |
1746 | * (execute only with vino_lock and input_lock locked) | |
1747 | */ | |
1748 | static int vino_dma_setup(struct vino_channel_settings *vcs, | |
1749 | struct vino_framebuffer *fb) | |
1750 | { | |
1751 | u32 ctrl, intr; | |
1752 | struct sgi_vino_channel *ch; | |
1753 | const struct vino_data_norm *norm; | |
1754 | ||
1755 | dprintk("vino_dma_setup():\n"); | |
1756 | ||
1757 | vcs->field = 0; | |
1758 | fb->frame_counter = 0; | |
1759 | ||
1760 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1761 | norm = &vino_data_norms[vcs->data_norm]; | |
1762 | ||
1763 | ch->page_index = 0; | |
1764 | ch->line_count = 0; | |
1765 | ||
1766 | /* VINO line size register is set 8 bytes less than actual */ | |
1767 | ch->line_size = vcs->line_size - 8; | |
1768 | ||
1769 | /* let VINO know where to transfer data */ | |
1770 | ch->start_desc_tbl = fb->desc_table.dma; | |
1771 | ch->next_4_desc = fb->desc_table.dma; | |
1772 | ||
1773 | /* give vino time to fetch the first four descriptors, 5 usec | |
1774 | * should be more than enough time */ | |
1775 | udelay(VINO_DESC_FETCH_DELAY); | |
1776 | ||
a637a114 LM |
1777 | dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", |
1778 | ch->start_desc_tbl, ch->next_4_desc); | |
1779 | ||
d203a7ec RB |
1780 | /* set the alpha register */ |
1781 | ch->alpha = vcs->alpha; | |
1782 | ||
1783 | /* set clipping registers */ | |
1784 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | | |
1785 | VINO_CLIP_EVEN(norm->even.top + | |
1786 | vcs->clipping.top / 2) | | |
1787 | VINO_CLIP_X(vcs->clipping.left); | |
1788 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + | |
1789 | vcs->clipping.bottom / 2 - 1) | | |
1790 | VINO_CLIP_EVEN(norm->even.top + | |
1791 | vcs->clipping.bottom / 2 - 1) | | |
1792 | VINO_CLIP_X(vcs->clipping.right); | |
d203a7ec RB |
1793 | |
1794 | /* set the size of actual content in the buffer (DECIMATION !) */ | |
1795 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / | |
1796 | vcs->decimation) * | |
1797 | ((vcs->clipping.bottom - vcs->clipping.top) / | |
1798 | vcs->decimation) * | |
1799 | vino_data_formats[vcs->data_format].bpp; | |
1800 | ||
1801 | ch->frame_rate = vcs->framert_reg; | |
1802 | ||
1803 | ctrl = vino->control; | |
1804 | intr = vino->intr_status; | |
1805 | ||
1806 | if (vcs->channel == VINO_CHANNEL_A) { | |
1807 | /* All interrupt conditions for this channel was cleared | |
1808 | * so clear the interrupt status register and enable | |
1809 | * interrupts */ | |
1810 | intr &= ~VINO_INTSTAT_A; | |
1811 | ctrl |= VINO_CTRL_A_INT; | |
1812 | ||
1813 | /* enable synchronization */ | |
1814 | ctrl |= VINO_CTRL_A_SYNC_ENBL; | |
1815 | ||
1816 | /* enable frame assembly */ | |
1817 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; | |
1818 | ||
1819 | /* set decimation used */ | |
1820 | if (vcs->decimation < 2) | |
1821 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; | |
1822 | else { | |
1823 | ctrl |= VINO_CTRL_A_DEC_ENBL; | |
1824 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; | |
1825 | ctrl |= (vcs->decimation - 1) << | |
1826 | VINO_CTRL_A_DEC_SCALE_SHIFT; | |
1827 | } | |
1828 | ||
1829 | /* select input interface */ | |
1830 | if (vcs->input == VINO_INPUT_D1) | |
1831 | ctrl |= VINO_CTRL_A_SELECT; | |
1832 | else | |
1833 | ctrl &= ~VINO_CTRL_A_SELECT; | |
1834 | ||
1835 | /* palette */ | |
1836 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | | |
1837 | VINO_CTRL_A_DITHER); | |
1838 | } else { | |
1839 | intr &= ~VINO_INTSTAT_B; | |
1840 | ctrl |= VINO_CTRL_B_INT; | |
1841 | ||
1842 | ctrl |= VINO_CTRL_B_SYNC_ENBL; | |
1843 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; | |
1844 | ||
1845 | if (vcs->decimation < 2) | |
1846 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; | |
1847 | else { | |
1848 | ctrl |= VINO_CTRL_B_DEC_ENBL; | |
1849 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; | |
1850 | ctrl |= (vcs->decimation - 1) << | |
1851 | VINO_CTRL_B_DEC_SCALE_SHIFT; | |
1852 | ||
1853 | } | |
1854 | if (vcs->input == VINO_INPUT_D1) | |
1855 | ctrl |= VINO_CTRL_B_SELECT; | |
1856 | else | |
1857 | ctrl &= ~VINO_CTRL_B_SELECT; | |
1858 | ||
1859 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | | |
1860 | VINO_CTRL_B_DITHER); | |
1861 | } | |
1862 | ||
1863 | /* set palette */ | |
1864 | fb->data_format = vcs->data_format; | |
1865 | ||
1866 | switch (vcs->data_format) { | |
1867 | case VINO_DATA_FMT_GREY: | |
1868 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1869 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; | |
1870 | break; | |
1871 | case VINO_DATA_FMT_RGB32: | |
1872 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1873 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; | |
1874 | break; | |
1875 | case VINO_DATA_FMT_YUV: | |
1876 | /* nothing needs to be done */ | |
1877 | break; | |
1878 | case VINO_DATA_FMT_RGB332: | |
1879 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1880 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : | |
1881 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; | |
1882 | break; | |
1883 | } | |
1884 | ||
1885 | vino->intr_status = intr; | |
1886 | vino->control = ctrl; | |
1887 | ||
1888 | return 0; | |
1889 | } | |
1890 | ||
1891 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1892 | static inline void vino_dma_start(struct vino_channel_settings *vcs) |
d203a7ec RB |
1893 | { |
1894 | u32 ctrl = vino->control; | |
1895 | ||
1896 | dprintk("vino_dma_start():\n"); | |
1897 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1898 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; | |
1899 | vino->control = ctrl; | |
1900 | } | |
1901 | ||
1902 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1903 | static inline void vino_dma_stop(struct vino_channel_settings *vcs) |
d203a7ec RB |
1904 | { |
1905 | u32 ctrl = vino->control; | |
1906 | ||
1907 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? | |
1908 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; | |
a637a114 LM |
1909 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
1910 | ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; | |
d203a7ec RB |
1911 | vino->control = ctrl; |
1912 | dprintk("vino_dma_stop():\n"); | |
1913 | } | |
1914 | ||
1915 | /* | |
1916 | * Load dummy page to descriptor registers. This prevents generating of | |
1917 | * spurious interrupts. (execute only with vino_lock locked) | |
1918 | */ | |
1919 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) | |
1920 | { | |
1921 | struct sgi_vino_channel *ch; | |
1922 | ||
1923 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1924 | ||
1925 | ch->page_index = 0; | |
1926 | ch->line_count = 0; | |
1927 | ||
1928 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; | |
1929 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
1930 | ||
1931 | udelay(VINO_DESC_FETCH_DELAY); | |
1932 | dprintk("channel %c clear interrupt condition\n", | |
1933 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); | |
1934 | } | |
1935 | ||
1936 | static int vino_capture(struct vino_channel_settings *vcs, | |
1937 | struct vino_framebuffer *fb) | |
1938 | { | |
1939 | int err = 0; | |
1940 | unsigned long flags, flags2; | |
1941 | ||
1942 | spin_lock_irqsave(&fb->state_lock, flags); | |
1943 | ||
1944 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
1945 | err = -EBUSY; | |
1946 | fb->state = VINO_FRAMEBUFFER_IN_USE; | |
1947 | ||
1948 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
1949 | ||
1950 | if (err) | |
1951 | return err; | |
1952 | ||
1953 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
1954 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); | |
1955 | ||
1956 | vino_dma_setup(vcs, fb); | |
1957 | vino_dma_start(vcs); | |
1958 | ||
1959 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); | |
1960 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
1961 | ||
1962 | return err; | |
1963 | } | |
1964 | ||
1965 | static | |
1966 | struct vino_framebuffer *vino_capture_enqueue(struct | |
1967 | vino_channel_settings *vcs, | |
1968 | unsigned int index) | |
1969 | { | |
1970 | struct vino_framebuffer *fb; | |
1971 | unsigned long flags; | |
1972 | ||
1973 | dprintk("vino_capture_enqueue():\n"); | |
1974 | ||
1975 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1976 | ||
1977 | fb = vino_queue_add(&vcs->fb_queue, index); | |
1978 | if (fb == NULL) { | |
1979 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " | |
1980 | "queue full?\n"); | |
1981 | goto out; | |
1982 | } | |
1983 | out: | |
1984 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1985 | ||
1986 | return fb; | |
1987 | } | |
1988 | ||
1989 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) | |
1990 | { | |
1991 | struct vino_framebuffer *fb; | |
1992 | unsigned int incoming, id; | |
1993 | int err = 0; | |
a637a114 | 1994 | unsigned long flags; |
d203a7ec RB |
1995 | |
1996 | dprintk("vino_capture_next():\n"); | |
1997 | ||
1998 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1999 | ||
2000 | if (start) { | |
2001 | /* start capture only if capture isn't in progress already */ | |
2002 | if (vcs->capturing) { | |
2003 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | } else { | |
2008 | /* capture next frame: | |
2009 | * stop capture if capturing is not set */ | |
2010 | if (!vcs->capturing) { | |
2011 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2012 | return 0; | |
2013 | } | |
2014 | } | |
2015 | ||
2016 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
2017 | if (err) { | |
2018 | dprintk("vino_capture_next(): vino_queue_get_incoming() " | |
2019 | "failed\n"); | |
2020 | err = -EINVAL; | |
2021 | goto out; | |
2022 | } | |
2023 | if (incoming == 0) { | |
2024 | dprintk("vino_capture_next(): no buffers available\n"); | |
2025 | goto out; | |
2026 | } | |
2027 | ||
2028 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2029 | if (fb == NULL) { | |
2030 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); | |
2031 | err = -EINVAL; | |
2032 | goto out; | |
2033 | } | |
2034 | ||
d203a7ec RB |
2035 | if (start) { |
2036 | vcs->capturing = 1; | |
2037 | } | |
2038 | ||
2039 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2040 | ||
2041 | err = vino_capture(vcs, fb); | |
2042 | ||
2043 | return err; | |
2044 | ||
2045 | out: | |
2046 | vcs->capturing = 0; | |
2047 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2048 | ||
2049 | return err; | |
2050 | } | |
2051 | ||
a637a114 | 2052 | static inline int vino_is_capturing(struct vino_channel_settings *vcs) |
d203a7ec RB |
2053 | { |
2054 | int ret; | |
2055 | unsigned long flags; | |
2056 | ||
2057 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2058 | ||
2059 | ret = vcs->capturing; | |
2060 | ||
2061 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2062 | ||
2063 | return ret; | |
2064 | } | |
2065 | ||
2066 | /* waits until a frame is captured */ | |
2067 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) | |
2068 | { | |
2069 | wait_queue_t wait; | |
2070 | int err = 0; | |
2071 | ||
2072 | dprintk("vino_wait_for_frame():\n"); | |
2073 | ||
2074 | init_waitqueue_entry(&wait, current); | |
2075 | /* add ourselves into wait queue */ | |
2076 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
d203a7ec RB |
2077 | |
2078 | /* to ensure that schedule_timeout will return immediately | |
f3a43d30 | 2079 | * if VINO interrupt was triggered meanwhile */ |
818ca471 | 2080 | schedule_timeout_interruptible(msecs_to_jiffies(100)); |
d203a7ec RB |
2081 | |
2082 | if (signal_pending(current)) | |
2083 | err = -EINTR; | |
2084 | ||
2085 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2086 | ||
2087 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", | |
2088 | err ? "failed" : "ok"); | |
2089 | ||
2090 | return err; | |
2091 | } | |
2092 | ||
2093 | /* the function assumes that PAGE_SIZE % 4 == 0 */ | |
2094 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { | |
2095 | unsigned char *pageptr; | |
2096 | unsigned int page, i; | |
2097 | unsigned char a; | |
2098 | ||
2099 | for (page = 0; page < fb->desc_table.page_count; page++) { | |
2100 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; | |
2101 | ||
2102 | for (i = 0; i < PAGE_SIZE; i += 4) { | |
2103 | a = pageptr[0]; | |
2104 | pageptr[0] = pageptr[3]; | |
2105 | pageptr[1] = pageptr[2]; | |
2106 | pageptr[2] = pageptr[1]; | |
2107 | pageptr[3] = a; | |
2108 | pageptr += 4; | |
2109 | } | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | /* checks if the buffer is in correct state and syncs data */ | |
2114 | static int vino_check_buffer(struct vino_channel_settings *vcs, | |
2115 | struct vino_framebuffer *fb) | |
2116 | { | |
2117 | int err = 0; | |
2118 | unsigned long flags; | |
2119 | ||
2120 | dprintk("vino_check_buffer():\n"); | |
2121 | ||
2122 | spin_lock_irqsave(&fb->state_lock, flags); | |
2123 | switch (fb->state) { | |
2124 | case VINO_FRAMEBUFFER_IN_USE: | |
2125 | err = -EIO; | |
2126 | break; | |
2127 | case VINO_FRAMEBUFFER_READY: | |
2128 | vino_sync_buffer(fb); | |
2129 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2130 | break; | |
2131 | default: | |
2132 | err = -EINVAL; | |
2133 | } | |
2134 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2135 | ||
2136 | if (!err) { | |
2137 | if (vino_pixel_conversion | |
2138 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { | |
2139 | vino_convert_to_rgba(fb); | |
2140 | } | |
2141 | } else if (err && (err != -EINVAL)) { | |
2142 | dprintk("vino_check_buffer(): buffer not ready\n"); | |
2143 | ||
2144 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2145 | vino_dma_stop(vcs); | |
2146 | vino_clear_interrupt(vcs); | |
2147 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2148 | } | |
2149 | ||
2150 | return err; | |
2151 | } | |
2152 | ||
2153 | /* forcefully terminates capture */ | |
2154 | static void vino_capture_stop(struct vino_channel_settings *vcs) | |
2155 | { | |
2156 | unsigned int incoming = 0, outgoing = 0, id; | |
2157 | unsigned long flags, flags2; | |
2158 | ||
2159 | dprintk("vino_capture_stop():\n"); | |
2160 | ||
2161 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
a637a114 | 2162 | |
d203a7ec RB |
2163 | /* unset capturing to stop queue processing */ |
2164 | vcs->capturing = 0; | |
2165 | ||
2166 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); | |
2167 | ||
2168 | vino_dma_stop(vcs); | |
2169 | vino_clear_interrupt(vcs); | |
2170 | ||
2171 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); | |
2172 | ||
2173 | /* remove all items from the queue */ | |
2174 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2175 | dprintk("vino_capture_stop(): " | |
2176 | "vino_queue_get_incoming() failed\n"); | |
2177 | goto out; | |
2178 | } | |
2179 | while (incoming > 0) { | |
2180 | vino_queue_transfer(&vcs->fb_queue); | |
2181 | ||
2182 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2183 | dprintk("vino_capture_stop(): " | |
2184 | "vino_queue_get_incoming() failed\n"); | |
2185 | goto out; | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2190 | dprintk("vino_capture_stop(): " | |
2191 | "vino_queue_get_outgoing() failed\n"); | |
2192 | goto out; | |
2193 | } | |
2194 | while (outgoing > 0) { | |
2195 | vino_queue_remove(&vcs->fb_queue, &id); | |
2196 | ||
2197 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2198 | dprintk("vino_capture_stop(): " | |
2199 | "vino_queue_get_outgoing() failed\n"); | |
2200 | goto out; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | out: | |
2205 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2206 | } | |
2207 | ||
a637a114 | 2208 | #if 0 |
d203a7ec RB |
2209 | static int vino_capture_failed(struct vino_channel_settings *vcs) |
2210 | { | |
2211 | struct vino_framebuffer *fb; | |
2212 | unsigned long flags; | |
2213 | unsigned int i; | |
2214 | int ret; | |
2215 | ||
2216 | dprintk("vino_capture_failed():\n"); | |
2217 | ||
2218 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2219 | ||
2220 | vino_dma_stop(vcs); | |
2221 | vino_clear_interrupt(vcs); | |
2222 | ||
2223 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2224 | ||
2225 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); | |
2226 | if (ret == VINO_QUEUE_ERROR) { | |
2227 | dprintk("vino_queue_get_incoming() failed\n"); | |
2228 | return -EINVAL; | |
2229 | } | |
2230 | if (i == 0) { | |
2231 | /* no buffers to process */ | |
2232 | return 0; | |
2233 | } | |
2234 | ||
2235 | fb = vino_queue_peek(&vcs->fb_queue, &i); | |
2236 | if (fb == NULL) { | |
2237 | dprintk("vino_queue_peek() failed\n"); | |
2238 | return -EINVAL; | |
2239 | } | |
2240 | ||
2241 | spin_lock_irqsave(&fb->state_lock, flags); | |
2242 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { | |
2243 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2244 | vino_queue_transfer(&vcs->fb_queue); | |
2245 | vino_queue_remove(&vcs->fb_queue, &i); | |
2246 | /* we should actually discard the newest frame, | |
2247 | * but who cares ... */ | |
2248 | } | |
2249 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2250 | ||
2251 | return 0; | |
2252 | } | |
a637a114 LM |
2253 | #endif |
2254 | ||
2255 | static void vino_skip_frame(struct vino_channel_settings *vcs) | |
2256 | { | |
2257 | struct vino_framebuffer *fb; | |
2258 | unsigned long flags; | |
2259 | unsigned int id; | |
2260 | ||
2261 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2262 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2263 | if (!fb) { | |
2264 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2265 | dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); | |
2266 | return; | |
2267 | } | |
2268 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2269 | ||
2270 | spin_lock_irqsave(&fb->state_lock, flags); | |
2271 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2272 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2273 | ||
2274 | vino_capture_next(vcs, 0); | |
2275 | } | |
d203a7ec | 2276 | |
a637a114 | 2277 | static void vino_frame_done(struct vino_channel_settings *vcs) |
d203a7ec RB |
2278 | { |
2279 | struct vino_framebuffer *fb; | |
2280 | unsigned long flags; | |
2281 | ||
2282 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2283 | fb = vino_queue_transfer(&vcs->fb_queue); | |
2284 | if (!fb) { | |
2285 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2286 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); | |
2287 | return; | |
2288 | } | |
2289 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2290 | ||
a637a114 LM |
2291 | fb->frame_counter = vcs->int_data.frame_counter; |
2292 | memcpy(&fb->timestamp, &vcs->int_data.timestamp, | |
2293 | sizeof(struct timeval)); | |
d203a7ec RB |
2294 | |
2295 | spin_lock_irqsave(&fb->state_lock, flags); | |
2296 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
2297 | fb->state = VINO_FRAMEBUFFER_READY; | |
2298 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2299 | ||
2300 | wake_up(&vcs->fb_queue.frame_wait_queue); | |
2301 | ||
2302 | vino_capture_next(vcs, 0); | |
2303 | } | |
2304 | ||
a637a114 LM |
2305 | static void vino_capture_tasklet(unsigned long channel) { |
2306 | struct vino_channel_settings *vcs; | |
2307 | ||
2308 | vcs = (channel == VINO_CHANNEL_A) | |
2309 | ? &vino_drvdata->a : &vino_drvdata->b; | |
2310 | ||
2311 | if (vcs->int_data.skip) | |
2312 | vcs->int_data.skip_count++; | |
2313 | ||
2314 | if (vcs->int_data.skip && (vcs->int_data.skip_count | |
2315 | <= VINO_MAX_FRAME_SKIP_COUNT)) { | |
2316 | vino_skip_frame(vcs); | |
2317 | } else { | |
2318 | vcs->int_data.skip_count = 0; | |
2319 | vino_frame_done(vcs); | |
2320 | } | |
2321 | } | |
2322 | ||
7d12e780 | 2323 | static irqreturn_t vino_interrupt(int irq, void *dev_id) |
d203a7ec | 2324 | { |
a637a114 | 2325 | u32 ctrl, intr; |
d203a7ec | 2326 | unsigned int fc_a, fc_b; |
a637a114 LM |
2327 | int handled_a = 0, skip_a = 0, done_a = 0; |
2328 | int handled_b = 0, skip_b = 0, done_b = 0; | |
2329 | ||
2330 | #ifdef VINO_DEBUG_INT | |
2331 | int loop = 0; | |
2332 | unsigned int line_count = vino->a.line_count, | |
2333 | page_index = vino->a.page_index, | |
2334 | field_counter = vino->a.field_counter, | |
2335 | start_desc_tbl = vino->a.start_desc_tbl, | |
2336 | next_4_desc = vino->a.next_4_desc; | |
2337 | unsigned int line_count_2, | |
2338 | page_index_2, | |
2339 | field_counter_2, | |
2340 | start_desc_tbl_2, | |
2341 | next_4_desc_2; | |
2342 | #endif | |
d203a7ec RB |
2343 | |
2344 | spin_lock(&vino_drvdata->vino_lock); | |
2345 | ||
a637a114 LM |
2346 | while ((intr = vino->intr_status)) { |
2347 | fc_a = vino->a.field_counter >> 1; | |
2348 | fc_b = vino->b.field_counter >> 1; | |
2349 | ||
2350 | /* handle error-interrupts in some special way ? | |
2351 | * --> skips frames */ | |
2352 | if (intr & VINO_INTSTAT_A) { | |
2353 | if (intr & VINO_INTSTAT_A_EOF) { | |
2354 | vino_drvdata->a.field++; | |
2355 | if (vino_drvdata->a.field > 1) { | |
2356 | vino_dma_stop(&vino_drvdata->a); | |
2357 | vino_clear_interrupt(&vino_drvdata->a); | |
2358 | vino_drvdata->a.field = 0; | |
2359 | done_a = 1; | |
2360 | } else { | |
2361 | if (vino->a.page_index | |
2362 | != vino_drvdata->a.line_size) { | |
2363 | vino->a.line_count = 0; | |
2364 | vino->a.page_index = | |
2365 | vino_drvdata-> | |
2366 | a.line_size; | |
2367 | vino->a.next_4_desc = | |
2368 | vino->a.start_desc_tbl; | |
2369 | } | |
2370 | } | |
2371 | dprintk("channel A end-of-field " | |
2372 | "interrupt: %04x\n", intr); | |
2373 | } else { | |
d203a7ec RB |
2374 | vino_dma_stop(&vino_drvdata->a); |
2375 | vino_clear_interrupt(&vino_drvdata->a); | |
2376 | vino_drvdata->a.field = 0; | |
a637a114 LM |
2377 | skip_a = 1; |
2378 | dprintk("channel A error interrupt: %04x\n", | |
2379 | intr); | |
d203a7ec | 2380 | } |
a637a114 LM |
2381 | |
2382 | #ifdef VINO_DEBUG_INT | |
2383 | line_count_2 = vino->a.line_count; | |
2384 | page_index_2 = vino->a.page_index; | |
2385 | field_counter_2 = vino->a.field_counter; | |
2386 | start_desc_tbl_2 = vino->a.start_desc_tbl; | |
2387 | next_4_desc_2 = vino->a.next_4_desc; | |
2388 | ||
2389 | printk("intr = %04x, loop = %d, field = %d\n", | |
2390 | intr, loop, vino_drvdata->a.field); | |
2391 | printk("1- line count = %04d, page index = %04d, " | |
2392 | "start = %08x, next = %08x\n" | |
2393 | " fieldc = %d, framec = %d\n", | |
2394 | line_count, page_index, start_desc_tbl, | |
2395 | next_4_desc, field_counter, fc_a); | |
2396 | printk("12-line count = %04d, page index = %04d, " | |
2397 | " start = %08x, next = %08x\n", | |
2398 | line_count_2, page_index_2, start_desc_tbl_2, | |
2399 | next_4_desc_2); | |
2400 | ||
2401 | if (done_a) | |
2402 | printk("\n"); | |
2403 | #endif | |
d203a7ec | 2404 | } |
a637a114 LM |
2405 | |
2406 | if (intr & VINO_INTSTAT_B) { | |
2407 | if (intr & VINO_INTSTAT_B_EOF) { | |
2408 | vino_drvdata->b.field++; | |
2409 | if (vino_drvdata->b.field > 1) { | |
2410 | vino_dma_stop(&vino_drvdata->b); | |
2411 | vino_clear_interrupt(&vino_drvdata->b); | |
2412 | vino_drvdata->b.field = 0; | |
2413 | done_b = 1; | |
2414 | } | |
2415 | dprintk("channel B end-of-field " | |
2416 | "interrupt: %04x\n", intr); | |
2417 | } else { | |
d203a7ec RB |
2418 | vino_dma_stop(&vino_drvdata->b); |
2419 | vino_clear_interrupt(&vino_drvdata->b); | |
2420 | vino_drvdata->b.field = 0; | |
a637a114 LM |
2421 | skip_b = 1; |
2422 | dprintk("channel B error interrupt: %04x\n", | |
2423 | intr); | |
d203a7ec | 2424 | } |
d203a7ec | 2425 | } |
d203a7ec | 2426 | |
a637a114 LM |
2427 | /* Always remember to clear interrupt status. |
2428 | * Disable VINO interrupts while we do this. */ | |
2429 | ctrl = vino->control; | |
2430 | vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); | |
2431 | vino->intr_status = ~intr; | |
2432 | vino->control = ctrl; | |
d203a7ec | 2433 | |
a637a114 | 2434 | spin_unlock(&vino_drvdata->vino_lock); |
d203a7ec | 2435 | |
a637a114 LM |
2436 | if ((!handled_a) && (done_a || skip_a)) { |
2437 | if (!skip_a) { | |
2438 | do_gettimeofday(&vino_drvdata-> | |
2439 | a.int_data.timestamp); | |
2440 | vino_drvdata->a.int_data.frame_counter = fc_a; | |
2441 | } | |
2442 | vino_drvdata->a.int_data.skip = skip_a; | |
2443 | ||
2444 | dprintk("channel A %s, interrupt: %d\n", | |
2445 | skip_a ? "skipping frame" : "frame done", | |
2446 | intr); | |
2447 | tasklet_hi_schedule(&vino_tasklet_a); | |
2448 | handled_a = 1; | |
2449 | } | |
2450 | ||
2451 | if ((!handled_b) && (done_b || skip_b)) { | |
2452 | if (!skip_b) { | |
2453 | do_gettimeofday(&vino_drvdata-> | |
2454 | b.int_data.timestamp); | |
2455 | vino_drvdata->b.int_data.frame_counter = fc_b; | |
2456 | } | |
2457 | vino_drvdata->b.int_data.skip = skip_b; | |
2458 | ||
2459 | dprintk("channel B %s, interrupt: %d\n", | |
2460 | skip_b ? "skipping frame" : "frame done", | |
2461 | intr); | |
2462 | tasklet_hi_schedule(&vino_tasklet_b); | |
2463 | handled_b = 1; | |
2464 | } | |
2465 | ||
2466 | #ifdef VINO_DEBUG_INT | |
2467 | loop++; | |
2468 | #endif | |
2469 | spin_lock(&vino_drvdata->vino_lock); | |
d203a7ec RB |
2470 | } |
2471 | ||
a637a114 LM |
2472 | spin_unlock(&vino_drvdata->vino_lock); |
2473 | ||
d203a7ec RB |
2474 | return IRQ_HANDLED; |
2475 | } | |
2476 | ||
2477 | /* VINO video input management */ | |
2478 | ||
2479 | static int vino_get_saa7191_input(int input) | |
2480 | { | |
2481 | switch (input) { | |
2482 | case VINO_INPUT_COMPOSITE: | |
2483 | return SAA7191_INPUT_COMPOSITE; | |
2484 | case VINO_INPUT_SVIDEO: | |
2485 | return SAA7191_INPUT_SVIDEO; | |
2486 | default: | |
2487 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " | |
2488 | "invalid input!\n"); | |
2489 | return -1; | |
2490 | } | |
2491 | } | |
2492 | ||
a637a114 | 2493 | static int vino_get_saa7191_norm(unsigned int data_norm) |
d203a7ec | 2494 | { |
a637a114 | 2495 | switch (data_norm) { |
d203a7ec RB |
2496 | case VINO_DATA_NORM_AUTO: |
2497 | return SAA7191_NORM_AUTO; | |
a637a114 LM |
2498 | case VINO_DATA_NORM_AUTO_EXT: |
2499 | return SAA7191_NORM_AUTO_EXT; | |
d203a7ec RB |
2500 | case VINO_DATA_NORM_PAL: |
2501 | return SAA7191_NORM_PAL; | |
2502 | case VINO_DATA_NORM_NTSC: | |
2503 | return SAA7191_NORM_NTSC; | |
2504 | case VINO_DATA_NORM_SECAM: | |
2505 | return SAA7191_NORM_SECAM; | |
2506 | default: | |
2507 | printk(KERN_ERR "VINO: vino_get_saa7191_norm(): " | |
2508 | "invalid norm!\n"); | |
2509 | return -1; | |
2510 | } | |
2511 | } | |
2512 | ||
a637a114 LM |
2513 | static int vino_get_from_saa7191_norm(int saa7191_norm) |
2514 | { | |
2515 | switch (saa7191_norm) { | |
2516 | case SAA7191_NORM_PAL: | |
2517 | return VINO_DATA_NORM_PAL; | |
2518 | case SAA7191_NORM_NTSC: | |
2519 | return VINO_DATA_NORM_NTSC; | |
2520 | case SAA7191_NORM_SECAM: | |
2521 | return VINO_DATA_NORM_SECAM; | |
2522 | default: | |
2523 | printk(KERN_ERR "VINO: vino_get_from_saa7191_norm(): " | |
2524 | "invalid norm!\n"); | |
2525 | return VINO_DATA_NORM_NONE; | |
2526 | } | |
2527 | } | |
2528 | ||
2529 | static int vino_saa7191_set_norm(unsigned int *data_norm) | |
2530 | { | |
2531 | int saa7191_norm, new_data_norm; | |
2532 | int err = 0; | |
2533 | ||
2534 | saa7191_norm = vino_get_saa7191_norm(*data_norm); | |
2535 | ||
2536 | err = i2c_decoder_command(DECODER_SAA7191_SET_NORM, | |
2537 | &saa7191_norm); | |
2538 | if (err) | |
2539 | goto out; | |
2540 | ||
2541 | if ((*data_norm == VINO_DATA_NORM_AUTO) | |
2542 | || (*data_norm == VINO_DATA_NORM_AUTO_EXT)) { | |
2543 | struct saa7191_status status; | |
2544 | ||
2545 | err = i2c_decoder_command(DECODER_SAA7191_GET_STATUS, | |
2546 | &status); | |
2547 | if (err) | |
2548 | goto out; | |
2549 | ||
2550 | new_data_norm = | |
2551 | vino_get_from_saa7191_norm(status.norm); | |
2552 | if (new_data_norm == VINO_DATA_NORM_NONE) { | |
2553 | err = -EINVAL; | |
2554 | goto out; | |
2555 | } | |
2556 | ||
2557 | *data_norm = (unsigned int)new_data_norm; | |
2558 | } | |
2559 | ||
2560 | out: | |
2561 | return err; | |
2562 | } | |
2563 | ||
d203a7ec RB |
2564 | /* execute with input_lock locked */ |
2565 | static int vino_is_input_owner(struct vino_channel_settings *vcs) | |
2566 | { | |
2567 | switch(vcs->input) { | |
2568 | case VINO_INPUT_COMPOSITE: | |
2569 | case VINO_INPUT_SVIDEO: | |
2570 | return (vino_drvdata->decoder.owner == vcs->channel); | |
2571 | case VINO_INPUT_D1: | |
2572 | return (vino_drvdata->camera.owner == vcs->channel); | |
2573 | default: | |
2574 | return 0; | |
2575 | } | |
2576 | } | |
2577 | ||
2578 | static int vino_acquire_input(struct vino_channel_settings *vcs) | |
2579 | { | |
a637a114 | 2580 | unsigned long flags; |
d203a7ec RB |
2581 | int ret = 0; |
2582 | ||
2583 | dprintk("vino_acquire_input():\n"); | |
2584 | ||
a637a114 | 2585 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2586 | |
2587 | /* First try D1 and then SAA7191 */ | |
2588 | if (vino_drvdata->camera.driver | |
2589 | && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { | |
e48d3319 | 2590 | i2c_use_client(vino_drvdata->camera.driver); |
d203a7ec RB |
2591 | vino_drvdata->camera.owner = vcs->channel; |
2592 | vcs->input = VINO_INPUT_D1; | |
2593 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2594 | } else if (vino_drvdata->decoder.driver | |
2595 | && (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) { | |
a637a114 | 2596 | int input, data_norm; |
d203a7ec | 2597 | int saa7191_input; |
d203a7ec | 2598 | |
e48d3319 | 2599 | i2c_use_client(vino_drvdata->decoder.driver); |
a637a114 LM |
2600 | input = VINO_INPUT_COMPOSITE; |
2601 | ||
2602 | saa7191_input = vino_get_saa7191_input(input); | |
2603 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2604 | &saa7191_input); | |
2605 | if (ret) { | |
2606 | ret = -EINVAL; | |
2607 | goto out; | |
2608 | } | |
2609 | ||
2610 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec | 2611 | |
a637a114 LM |
2612 | /* Don't hold spinlocks while auto-detecting norm |
2613 | * as it may take a while... */ | |
d203a7ec | 2614 | |
a637a114 LM |
2615 | data_norm = VINO_DATA_NORM_AUTO_EXT; |
2616 | ||
2617 | ret = vino_saa7191_set_norm(&data_norm); | |
2618 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2619 | data_norm = VINO_DATA_NORM_PAL; | |
2620 | ret = vino_saa7191_set_norm(&data_norm); | |
2621 | } | |
2622 | ||
2623 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
2624 | ||
2625 | if (ret) { | |
2626 | ret = -EINVAL; | |
2627 | goto out; | |
2628 | } | |
2629 | ||
2630 | vino_drvdata->decoder.owner = vcs->channel; | |
2631 | ||
2632 | vcs->input = input; | |
2633 | vcs->data_norm = data_norm; | |
d203a7ec RB |
2634 | } else { |
2635 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? | |
2636 | vino_drvdata->b.input : vino_drvdata->a.input; | |
2637 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? | |
2638 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; | |
2639 | } | |
2640 | ||
2641 | if (vcs->input == VINO_INPUT_NONE) { | |
2642 | ret = -ENODEV; | |
2643 | goto out; | |
2644 | } | |
2645 | ||
a637a114 LM |
2646 | vino_set_default_clipping(vcs); |
2647 | vino_set_default_scaling(vcs); | |
2648 | vino_set_default_framerate(vcs); | |
d203a7ec RB |
2649 | |
2650 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); | |
2651 | ||
2652 | out: | |
a637a114 | 2653 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2654 | |
2655 | return ret; | |
2656 | } | |
2657 | ||
2658 | static int vino_set_input(struct vino_channel_settings *vcs, int input) | |
2659 | { | |
2660 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2661 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2662 | unsigned long flags; |
d203a7ec RB |
2663 | int ret = 0; |
2664 | ||
2665 | dprintk("vino_set_input():\n"); | |
2666 | ||
a637a114 | 2667 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2668 | |
2669 | if (vcs->input == input) | |
2670 | goto out; | |
2671 | ||
a637a114 | 2672 | switch (input) { |
d203a7ec RB |
2673 | case VINO_INPUT_COMPOSITE: |
2674 | case VINO_INPUT_SVIDEO: | |
2675 | if (!vino_drvdata->decoder.driver) { | |
2676 | ret = -EINVAL; | |
2677 | goto out; | |
2678 | } | |
2679 | ||
2680 | if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { | |
e48d3319 | 2681 | i2c_use_client(vino_drvdata->decoder.driver); |
d203a7ec RB |
2682 | vino_drvdata->decoder.owner = vcs->channel; |
2683 | } | |
2684 | ||
2685 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
a637a114 | 2686 | int data_norm; |
d203a7ec | 2687 | int saa7191_input; |
d203a7ec | 2688 | |
a637a114 LM |
2689 | saa7191_input = vino_get_saa7191_input(input); |
2690 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2691 | &saa7191_input); | |
2692 | if (ret) { | |
2693 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2694 | ret = -EINVAL; | |
2695 | goto out; | |
2696 | } | |
2697 | ||
2698 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
2699 | ||
2700 | /* Don't hold spinlocks while auto-detecting norm | |
2701 | * as it may take a while... */ | |
2702 | ||
2703 | data_norm = VINO_DATA_NORM_AUTO_EXT; | |
2704 | ||
2705 | ret = vino_saa7191_set_norm(&data_norm); | |
2706 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2707 | data_norm = VINO_DATA_NORM_PAL; | |
2708 | ret = vino_saa7191_set_norm(&data_norm); | |
2709 | } | |
d203a7ec | 2710 | |
a637a114 LM |
2711 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
2712 | ||
2713 | if (ret) { | |
2714 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2715 | ret = -EINVAL; | |
2716 | goto out; | |
2717 | } | |
2718 | ||
2719 | vcs->input = input; | |
2720 | vcs->data_norm = data_norm; | |
d203a7ec | 2721 | } else { |
a637a114 | 2722 | if (input != vcs2->input) { |
d203a7ec RB |
2723 | ret = -EBUSY; |
2724 | goto out; | |
2725 | } | |
2726 | ||
2727 | vcs->input = input; | |
2728 | vcs->data_norm = vcs2->data_norm; | |
2729 | } | |
2730 | ||
2731 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2732 | /* Transfer the ownership or release the input */ | |
2733 | if (vcs2->input == VINO_INPUT_D1) { | |
2734 | vino_drvdata->camera.owner = vcs2->channel; | |
2735 | } else { | |
2736 | i2c_release_client(vino_drvdata-> | |
2737 | camera.driver); | |
2738 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2739 | } | |
2740 | } | |
2741 | break; | |
2742 | case VINO_INPUT_D1: | |
2743 | if (!vino_drvdata->camera.driver) { | |
2744 | ret = -EINVAL; | |
2745 | goto out; | |
2746 | } | |
2747 | ||
2748 | if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { | |
e48d3319 | 2749 | i2c_use_client(vino_drvdata->camera.driver); |
d203a7ec RB |
2750 | vino_drvdata->camera.owner = vcs->channel; |
2751 | } | |
2752 | ||
2753 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
2754 | /* Transfer the ownership or release the input */ | |
2755 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2756 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2757 | vino_drvdata->decoder.owner = vcs2->channel; | |
2758 | } else { | |
2759 | i2c_release_client(vino_drvdata-> | |
2760 | decoder.driver); | |
2761 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2762 | } | |
2763 | } | |
2764 | ||
2765 | vcs->input = input; | |
2766 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2767 | break; | |
2768 | default: | |
2769 | ret = -EINVAL; | |
2770 | goto out; | |
2771 | } | |
2772 | ||
2773 | vino_set_default_clipping(vcs); | |
a637a114 | 2774 | vino_set_default_scaling(vcs); |
d203a7ec RB |
2775 | vino_set_default_framerate(vcs); |
2776 | ||
2777 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); | |
2778 | ||
2779 | out: | |
a637a114 | 2780 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2781 | |
2782 | return ret; | |
2783 | } | |
2784 | ||
2785 | static void vino_release_input(struct vino_channel_settings *vcs) | |
2786 | { | |
2787 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2788 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2789 | unsigned long flags; |
d203a7ec RB |
2790 | |
2791 | dprintk("vino_release_input():\n"); | |
2792 | ||
a637a114 | 2793 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2794 | |
2795 | /* Release ownership of the channel | |
2796 | * and if the other channel takes input from | |
2797 | * the same source, transfer the ownership */ | |
2798 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2799 | if (vcs2->input == VINO_INPUT_D1) { | |
2800 | vino_drvdata->camera.owner = vcs2->channel; | |
2801 | } else { | |
2802 | i2c_release_client(vino_drvdata->camera.driver); | |
2803 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2804 | } | |
2805 | } else if (vino_drvdata->decoder.owner == vcs->channel) { | |
2806 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2807 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2808 | vino_drvdata->decoder.owner = vcs2->channel; | |
2809 | } else { | |
2810 | i2c_release_client(vino_drvdata->decoder.driver); | |
2811 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2812 | } | |
2813 | } | |
2814 | vcs->input = VINO_INPUT_NONE; | |
2815 | ||
a637a114 | 2816 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2817 | } |
2818 | ||
2819 | /* execute with input_lock locked */ | |
2820 | static int vino_set_data_norm(struct vino_channel_settings *vcs, | |
a637a114 LM |
2821 | unsigned int data_norm, |
2822 | unsigned long *flags) | |
d203a7ec | 2823 | { |
a637a114 LM |
2824 | int err = 0; |
2825 | ||
2826 | if (data_norm == vcs->data_norm) | |
2827 | return 0; | |
d203a7ec RB |
2828 | |
2829 | switch (vcs->input) { | |
2830 | case VINO_INPUT_D1: | |
2831 | /* only one "norm" supported */ | |
a637a114 LM |
2832 | if ((data_norm != VINO_DATA_NORM_D1) |
2833 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2834 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
d203a7ec RB |
2835 | return -EINVAL; |
2836 | break; | |
2837 | case VINO_INPUT_COMPOSITE: | |
a637a114 LM |
2838 | case VINO_INPUT_SVIDEO: { |
2839 | if ((data_norm != VINO_DATA_NORM_PAL) | |
2840 | && (data_norm != VINO_DATA_NORM_NTSC) | |
2841 | && (data_norm != VINO_DATA_NORM_SECAM) | |
2842 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2843 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
2844 | return -EINVAL; | |
d203a7ec | 2845 | |
a637a114 LM |
2846 | spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); |
2847 | ||
2848 | /* Don't hold spinlocks while setting norm | |
2849 | * as it may take a while... */ | |
2850 | ||
2851 | err = vino_saa7191_set_norm(&data_norm); | |
2852 | ||
2853 | spin_lock_irqsave(&vino_drvdata->input_lock, *flags); | |
2854 | ||
2855 | if (err) | |
2856 | goto out; | |
d203a7ec | 2857 | |
d203a7ec | 2858 | vcs->data_norm = data_norm; |
a637a114 LM |
2859 | |
2860 | vino_set_default_clipping(vcs); | |
2861 | vino_set_default_scaling(vcs); | |
2862 | vino_set_default_framerate(vcs); | |
d203a7ec | 2863 | break; |
a637a114 | 2864 | } |
d203a7ec RB |
2865 | default: |
2866 | return -EINVAL; | |
2867 | } | |
2868 | ||
a637a114 LM |
2869 | out: |
2870 | return err; | |
d203a7ec RB |
2871 | } |
2872 | ||
2873 | /* V4L2 helper functions */ | |
2874 | ||
2875 | static int vino_find_data_format(__u32 pixelformat) | |
2876 | { | |
2877 | int i; | |
2878 | ||
2879 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { | |
2880 | if (vino_data_formats[i].pixelformat == pixelformat) | |
2881 | return i; | |
2882 | } | |
2883 | ||
2884 | return VINO_DATA_FMT_NONE; | |
2885 | } | |
2886 | ||
2887 | static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index) | |
2888 | { | |
2889 | int data_norm = VINO_DATA_NORM_NONE; | |
a637a114 | 2890 | unsigned long flags; |
d203a7ec | 2891 | |
a637a114 | 2892 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2893 | switch(vcs->input) { |
2894 | case VINO_INPUT_COMPOSITE: | |
2895 | case VINO_INPUT_SVIDEO: | |
2896 | if (index == 0) { | |
2897 | data_norm = VINO_DATA_NORM_PAL; | |
2898 | } else if (index == 1) { | |
2899 | data_norm = VINO_DATA_NORM_NTSC; | |
2900 | } else if (index == 2) { | |
2901 | data_norm = VINO_DATA_NORM_SECAM; | |
2902 | } | |
2903 | break; | |
2904 | case VINO_INPUT_D1: | |
2905 | if (index == 0) { | |
2906 | data_norm = VINO_DATA_NORM_D1; | |
2907 | } | |
2908 | break; | |
2909 | } | |
a637a114 | 2910 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2911 | |
2912 | return data_norm; | |
2913 | } | |
2914 | ||
2915 | static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index) | |
2916 | { | |
2917 | int input = VINO_INPUT_NONE; | |
a637a114 | 2918 | unsigned long flags; |
d203a7ec | 2919 | |
a637a114 | 2920 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2921 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { |
2922 | switch (index) { | |
2923 | case 0: | |
2924 | input = VINO_INPUT_COMPOSITE; | |
2925 | break; | |
2926 | case 1: | |
2927 | input = VINO_INPUT_SVIDEO; | |
2928 | break; | |
2929 | case 2: | |
2930 | input = VINO_INPUT_D1; | |
2931 | break; | |
2932 | } | |
2933 | } else if (vino_drvdata->decoder.driver) { | |
2934 | switch (index) { | |
2935 | case 0: | |
2936 | input = VINO_INPUT_COMPOSITE; | |
2937 | break; | |
2938 | case 1: | |
2939 | input = VINO_INPUT_SVIDEO; | |
2940 | break; | |
2941 | } | |
2942 | } else if (vino_drvdata->camera.driver) { | |
2943 | switch (index) { | |
2944 | case 0: | |
2945 | input = VINO_INPUT_D1; | |
2946 | break; | |
2947 | } | |
2948 | } | |
a637a114 | 2949 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2950 | |
2951 | return input; | |
2952 | } | |
2953 | ||
2954 | /* execute with input_lock locked */ | |
2955 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) | |
2956 | { | |
2957 | __u32 index = 0; | |
2958 | // FIXME: detect when no inputs available | |
2959 | ||
2960 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { | |
2961 | switch (vcs->input) { | |
2962 | case VINO_INPUT_COMPOSITE: | |
2963 | index = 0; | |
2964 | break; | |
2965 | case VINO_INPUT_SVIDEO: | |
2966 | index = 1; | |
2967 | break; | |
2968 | case VINO_INPUT_D1: | |
2969 | index = 2; | |
2970 | break; | |
2971 | } | |
2972 | } else if (vino_drvdata->decoder.driver) { | |
2973 | switch (vcs->input) { | |
2974 | case VINO_INPUT_COMPOSITE: | |
2975 | index = 0; | |
2976 | break; | |
2977 | case VINO_INPUT_SVIDEO: | |
2978 | index = 1; | |
2979 | break; | |
2980 | } | |
2981 | } else if (vino_drvdata->camera.driver) { | |
2982 | switch (vcs->input) { | |
2983 | case VINO_INPUT_D1: | |
2984 | index = 0; | |
2985 | break; | |
2986 | } | |
2987 | } | |
2988 | ||
2989 | return index; | |
2990 | } | |
2991 | ||
2992 | /* V4L2 ioctls */ | |
2993 | ||
2994 | static void vino_v4l2_querycap(struct v4l2_capability *cap) | |
2995 | { | |
2996 | memset(cap, 0, sizeof(struct v4l2_capability)); | |
2997 | ||
2998 | strcpy(cap->driver, vino_driver_name); | |
2999 | strcpy(cap->card, vino_driver_description); | |
3000 | strcpy(cap->bus_info, vino_bus_name); | |
3001 | cap->version = VINO_VERSION_CODE; | |
3002 | cap->capabilities = | |
3003 | V4L2_CAP_VIDEO_CAPTURE | | |
3004 | V4L2_CAP_STREAMING; | |
3005 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE | |
3006 | } | |
3007 | ||
3008 | static int vino_v4l2_enuminput(struct vino_channel_settings *vcs, | |
3009 | struct v4l2_input *i) | |
3010 | { | |
3011 | __u32 index = i->index; | |
3012 | int input; | |
3013 | dprintk("requested index = %d\n", index); | |
3014 | ||
3015 | input = vino_enum_input(vcs, index); | |
3016 | if (input == VINO_INPUT_NONE) | |
3017 | return -EINVAL; | |
3018 | ||
3019 | memset(i, 0, sizeof(struct v4l2_input)); | |
3020 | ||
3021 | i->index = index; | |
3022 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
3023 | i->std = vino_inputs[input].std; | |
3024 | strcpy(i->name, vino_inputs[input].name); | |
3025 | ||
3026 | if ((input == VINO_INPUT_COMPOSITE) | |
3027 | || (input == VINO_INPUT_SVIDEO)) { | |
3028 | struct saa7191_status status; | |
3029 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3030 | i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL; | |
3031 | i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR; | |
3032 | } | |
3033 | ||
3034 | return 0; | |
3035 | } | |
3036 | ||
3037 | static int vino_v4l2_g_input(struct vino_channel_settings *vcs, | |
a637a114 | 3038 | unsigned int *i) |
d203a7ec RB |
3039 | { |
3040 | __u32 index; | |
3041 | int input; | |
a637a114 | 3042 | unsigned long flags; |
d203a7ec | 3043 | |
a637a114 | 3044 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3045 | input = vcs->input; |
3046 | index = vino_find_input_index(vcs); | |
a637a114 | 3047 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3048 | |
3049 | dprintk("input = %d\n", input); | |
3050 | ||
3051 | if (input == VINO_INPUT_NONE) { | |
3052 | return -EINVAL; | |
3053 | } | |
3054 | ||
a637a114 | 3055 | *i = index; |
d203a7ec RB |
3056 | |
3057 | return 0; | |
3058 | } | |
3059 | ||
3060 | static int vino_v4l2_s_input(struct vino_channel_settings *vcs, | |
a637a114 | 3061 | unsigned int *i) |
d203a7ec RB |
3062 | { |
3063 | int input; | |
a637a114 | 3064 | dprintk("requested input = %d\n", *i); |
d203a7ec | 3065 | |
a637a114 | 3066 | input = vino_enum_input(vcs, *i); |
d203a7ec RB |
3067 | if (input == VINO_INPUT_NONE) |
3068 | return -EINVAL; | |
3069 | ||
3070 | return vino_set_input(vcs, input); | |
3071 | } | |
3072 | ||
3073 | static int vino_v4l2_enumstd(struct vino_channel_settings *vcs, | |
3074 | struct v4l2_standard *s) | |
3075 | { | |
3076 | int index = s->index; | |
a637a114 LM |
3077 | int data_norm; |
3078 | ||
3079 | data_norm = vino_enum_data_norm(vcs, index); | |
d203a7ec RB |
3080 | dprintk("standard index = %d\n", index); |
3081 | ||
3082 | if (data_norm == VINO_DATA_NORM_NONE) | |
3083 | return -EINVAL; | |
3084 | ||
3085 | dprintk("standard name = %s\n", | |
3086 | vino_data_norms[data_norm].description); | |
3087 | ||
3088 | memset(s, 0, sizeof(struct v4l2_standard)); | |
3089 | s->index = index; | |
3090 | ||
3091 | s->id = vino_data_norms[data_norm].std; | |
3092 | s->frameperiod.numerator = 1; | |
3093 | s->frameperiod.denominator = | |
3094 | vino_data_norms[data_norm].fps_max; | |
3095 | s->framelines = | |
3096 | vino_data_norms[data_norm].framelines; | |
3097 | strcpy(s->name, | |
3098 | vino_data_norms[data_norm].description); | |
3099 | ||
3100 | return 0; | |
3101 | } | |
3102 | ||
a637a114 LM |
3103 | static int vino_v4l2_querystd(struct vino_channel_settings *vcs, |
3104 | v4l2_std_id *std) | |
3105 | { | |
3106 | unsigned long flags; | |
3107 | int err = 0; | |
3108 | ||
3109 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3110 | ||
3111 | switch (vcs->input) { | |
3112 | case VINO_INPUT_D1: | |
3113 | *std = vino_inputs[vcs->input].std; | |
3114 | break; | |
3115 | case VINO_INPUT_COMPOSITE: | |
3116 | case VINO_INPUT_SVIDEO: { | |
3117 | struct saa7191_status status; | |
3118 | ||
3119 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3120 | ||
3121 | if (status.signal) { | |
3122 | if (status.signal_60hz) { | |
3123 | *std = V4L2_STD_NTSC; | |
3124 | } else { | |
3125 | *std = V4L2_STD_PAL | V4L2_STD_SECAM; | |
3126 | } | |
3127 | } else { | |
3128 | *std = vino_inputs[vcs->input].std; | |
3129 | } | |
3130 | break; | |
3131 | } | |
3132 | default: | |
3133 | err = -EINVAL; | |
3134 | } | |
3135 | ||
3136 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
3137 | ||
3138 | return err; | |
3139 | } | |
3140 | ||
d203a7ec RB |
3141 | static int vino_v4l2_g_std(struct vino_channel_settings *vcs, |
3142 | v4l2_std_id *std) | |
3143 | { | |
a637a114 LM |
3144 | unsigned long flags; |
3145 | ||
3146 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3147 | ||
d203a7ec | 3148 | *std = vino_data_norms[vcs->data_norm].std; |
a637a114 LM |
3149 | dprintk("current standard = %d\n", vcs->data_norm); |
3150 | ||
3151 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3152 | |
3153 | return 0; | |
3154 | } | |
3155 | ||
3156 | static int vino_v4l2_s_std(struct vino_channel_settings *vcs, | |
3157 | v4l2_std_id *std) | |
3158 | { | |
a637a114 | 3159 | unsigned long flags; |
d203a7ec RB |
3160 | int ret = 0; |
3161 | ||
a637a114 LM |
3162 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3163 | ||
3164 | if (!vino_is_input_owner(vcs)) { | |
3165 | ret = -EBUSY; | |
3166 | goto out; | |
3167 | } | |
d203a7ec RB |
3168 | |
3169 | /* check if the standard is valid for the current input */ | |
a637a114 | 3170 | if ((*std) & vino_inputs[vcs->input].std) { |
d203a7ec RB |
3171 | dprintk("standard accepted\n"); |
3172 | ||
3173 | /* change the video norm for SAA7191 | |
3174 | * and accept NTSC for D1 (do nothing) */ | |
3175 | ||
3176 | if (vcs->input == VINO_INPUT_D1) | |
3177 | goto out; | |
3178 | ||
a637a114 LM |
3179 | if (((*std) & V4L2_STD_PAL) |
3180 | && ((*std) & V4L2_STD_NTSC) | |
3181 | && ((*std) & V4L2_STD_SECAM)) { | |
3182 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_AUTO_EXT, | |
3183 | &flags); | |
3184 | } else if ((*std) & V4L2_STD_PAL) { | |
3185 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, | |
3186 | &flags); | |
d203a7ec | 3187 | } else if ((*std) & V4L2_STD_NTSC) { |
a637a114 LM |
3188 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, |
3189 | &flags); | |
d203a7ec | 3190 | } else if ((*std) & V4L2_STD_SECAM) { |
a637a114 LM |
3191 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, |
3192 | &flags); | |
d203a7ec RB |
3193 | } else { |
3194 | ret = -EINVAL; | |
3195 | } | |
a637a114 LM |
3196 | |
3197 | if (ret) { | |
3198 | ret = -EINVAL; | |
3199 | } | |
d203a7ec RB |
3200 | } else { |
3201 | ret = -EINVAL; | |
3202 | } | |
3203 | ||
3204 | out: | |
a637a114 | 3205 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3206 | |
3207 | return ret; | |
3208 | } | |
3209 | ||
3210 | static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs, | |
3211 | struct v4l2_fmtdesc *fd) | |
3212 | { | |
3213 | enum v4l2_buf_type type = fd->type; | |
3214 | int index = fd->index; | |
3215 | dprintk("format index = %d\n", index); | |
3216 | ||
3217 | switch (fd->type) { | |
3218 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3219 | if ((fd->index < 0) || | |
3220 | (fd->index >= VINO_DATA_FMT_COUNT)) | |
3221 | return -EINVAL; | |
3222 | dprintk("format name = %s\n", | |
3223 | vino_data_formats[index].description); | |
3224 | ||
3225 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); | |
3226 | fd->index = index; | |
3227 | fd->type = type; | |
3228 | fd->pixelformat = vino_data_formats[index].pixelformat; | |
3229 | strcpy(fd->description, vino_data_formats[index].description); | |
3230 | break; | |
3231 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3232 | default: | |
3233 | return -EINVAL; | |
3234 | } | |
3235 | ||
3236 | return 0; | |
3237 | } | |
3238 | ||
3239 | static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs, | |
3240 | struct v4l2_format *f) | |
3241 | { | |
3242 | struct vino_channel_settings tempvcs; | |
a637a114 | 3243 | unsigned long flags; |
d203a7ec RB |
3244 | |
3245 | switch (f->type) { | |
3246 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3247 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
3248 | ||
3249 | dprintk("requested: w = %d, h = %d\n", | |
3250 | pf->width, pf->height); | |
3251 | ||
a637a114 | 3252 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3253 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); |
a637a114 | 3254 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3255 | |
3256 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); | |
3257 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { | |
a637a114 | 3258 | tempvcs.data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3259 | pf->pixelformat = |
3260 | vino_data_formats[tempvcs.data_format]. | |
3261 | pixelformat; | |
3262 | } | |
3263 | ||
3264 | /* data format must be set before clipping/scaling */ | |
3265 | vino_set_scaling(&tempvcs, pf->width, pf->height); | |
3266 | ||
3267 | dprintk("data format = %s\n", | |
3268 | vino_data_formats[tempvcs.data_format].description); | |
3269 | ||
3270 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / | |
3271 | tempvcs.decimation; | |
3272 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3273 | tempvcs.decimation; | |
3274 | ||
3275 | pf->field = V4L2_FIELD_INTERLACED; | |
3276 | pf->bytesperline = tempvcs.line_size; | |
3277 | pf->sizeimage = tempvcs.line_size * | |
3278 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3279 | tempvcs.decimation; | |
3280 | pf->colorspace = | |
3281 | vino_data_formats[tempvcs.data_format].colorspace; | |
3282 | ||
3283 | pf->priv = 0; | |
3284 | break; | |
3285 | } | |
3286 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3287 | default: | |
3288 | return -EINVAL; | |
3289 | } | |
3290 | ||
3291 | return 0; | |
3292 | } | |
3293 | ||
3294 | static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs, | |
3295 | struct v4l2_format *f) | |
3296 | { | |
a637a114 LM |
3297 | unsigned long flags; |
3298 | ||
d203a7ec RB |
3299 | switch (f->type) { |
3300 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3301 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
a637a114 LM |
3302 | |
3303 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3304 | |
3305 | pf->width = (vcs->clipping.right - vcs->clipping.left) / | |
3306 | vcs->decimation; | |
3307 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / | |
3308 | vcs->decimation; | |
3309 | pf->pixelformat = | |
3310 | vino_data_formats[vcs->data_format].pixelformat; | |
3311 | ||
3312 | pf->field = V4L2_FIELD_INTERLACED; | |
3313 | pf->bytesperline = vcs->line_size; | |
3314 | pf->sizeimage = vcs->line_size * | |
3315 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3316 | vcs->decimation; | |
3317 | pf->colorspace = | |
3318 | vino_data_formats[vcs->data_format].colorspace; | |
3319 | ||
3320 | pf->priv = 0; | |
3321 | ||
a637a114 | 3322 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3323 | break; |
3324 | } | |
3325 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3326 | default: | |
3327 | return -EINVAL; | |
3328 | } | |
3329 | ||
3330 | return 0; | |
3331 | } | |
3332 | ||
3333 | static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs, | |
3334 | struct v4l2_format *f) | |
3335 | { | |
3336 | int data_format; | |
a637a114 | 3337 | unsigned long flags; |
d203a7ec RB |
3338 | |
3339 | switch (f->type) { | |
3340 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3341 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
d203a7ec | 3342 | |
a637a114 | 3343 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3344 | |
3345 | data_format = vino_find_data_format(pf->pixelformat); | |
a637a114 | 3346 | |
d203a7ec | 3347 | if (data_format == VINO_DATA_FMT_NONE) { |
a637a114 | 3348 | vcs->data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3349 | pf->pixelformat = |
3350 | vino_data_formats[vcs->data_format]. | |
3351 | pixelformat; | |
3352 | } else { | |
3353 | vcs->data_format = data_format; | |
3354 | } | |
3355 | ||
3356 | /* data format must be set before clipping/scaling */ | |
3357 | vino_set_scaling(vcs, pf->width, pf->height); | |
3358 | ||
3359 | dprintk("data format = %s\n", | |
3360 | vino_data_formats[vcs->data_format].description); | |
3361 | ||
3362 | pf->width = vcs->clipping.right - vcs->clipping.left; | |
3363 | pf->height = vcs->clipping.bottom - vcs->clipping.top; | |
3364 | ||
3365 | pf->field = V4L2_FIELD_INTERLACED; | |
3366 | pf->bytesperline = vcs->line_size; | |
3367 | pf->sizeimage = vcs->line_size * | |
3368 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3369 | vcs->decimation; | |
3370 | pf->colorspace = | |
3371 | vino_data_formats[vcs->data_format].colorspace; | |
3372 | ||
3373 | pf->priv = 0; | |
3374 | ||
a637a114 | 3375 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3376 | break; |
3377 | } | |
3378 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3379 | default: | |
3380 | return -EINVAL; | |
3381 | } | |
3382 | ||
3383 | return 0; | |
3384 | } | |
3385 | ||
3386 | static int vino_v4l2_cropcap(struct vino_channel_settings *vcs, | |
3387 | struct v4l2_cropcap *ccap) | |
3388 | { | |
3389 | const struct vino_data_norm *norm; | |
a637a114 | 3390 | unsigned long flags; |
d203a7ec RB |
3391 | |
3392 | switch (ccap->type) { | |
3393 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 LM |
3394 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3395 | ||
d203a7ec | 3396 | norm = &vino_data_norms[vcs->data_norm]; |
a637a114 LM |
3397 | |
3398 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3399 | |
3400 | ccap->bounds.left = 0; | |
3401 | ccap->bounds.top = 0; | |
3402 | ccap->bounds.width = norm->width; | |
3403 | ccap->bounds.height = norm->height; | |
3404 | memcpy(&ccap->defrect, &ccap->bounds, | |
3405 | sizeof(struct v4l2_rect)); | |
3406 | ||
3407 | ccap->pixelaspect.numerator = 1; | |
3408 | ccap->pixelaspect.denominator = 1; | |
3409 | break; | |
3410 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3411 | default: | |
3412 | return -EINVAL; | |
3413 | } | |
3414 | ||
3415 | return 0; | |
3416 | } | |
3417 | ||
3418 | static int vino_v4l2_g_crop(struct vino_channel_settings *vcs, | |
3419 | struct v4l2_crop *c) | |
3420 | { | |
a637a114 LM |
3421 | unsigned long flags; |
3422 | ||
d203a7ec RB |
3423 | switch (c->type) { |
3424 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3425 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3426 | |
3427 | c->c.left = vcs->clipping.left; | |
3428 | c->c.top = vcs->clipping.top; | |
3429 | c->c.width = vcs->clipping.right - vcs->clipping.left; | |
3430 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; | |
3431 | ||
a637a114 | 3432 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3433 | break; |
3434 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3435 | default: | |
3436 | return -EINVAL; | |
3437 | } | |
3438 | ||
3439 | return 0; | |
3440 | } | |
3441 | ||
3442 | static int vino_v4l2_s_crop(struct vino_channel_settings *vcs, | |
3443 | struct v4l2_crop *c) | |
3444 | { | |
a637a114 LM |
3445 | unsigned long flags; |
3446 | ||
d203a7ec RB |
3447 | switch (c->type) { |
3448 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3449 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3450 | |
d203a7ec RB |
3451 | vino_set_clipping(vcs, c->c.left, c->c.top, |
3452 | c->c.width, c->c.height); | |
3453 | ||
a637a114 | 3454 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3455 | break; |
3456 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3457 | default: | |
3458 | return -EINVAL; | |
3459 | } | |
3460 | ||
3461 | return 0; | |
3462 | } | |
3463 | ||
3464 | static int vino_v4l2_g_parm(struct vino_channel_settings *vcs, | |
3465 | struct v4l2_streamparm *sp) | |
3466 | { | |
a637a114 LM |
3467 | unsigned long flags; |
3468 | ||
d203a7ec RB |
3469 | switch (sp->type) { |
3470 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3471 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3472 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
3473 | ||
3474 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
3475 | cp->timeperframe.numerator = 1; | |
3476 | ||
a637a114 LM |
3477 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3478 | ||
d203a7ec | 3479 | cp->timeperframe.denominator = vcs->fps; |
a637a114 LM |
3480 | |
3481 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3482 | |
3483 | // TODO: cp->readbuffers = xxx; | |
3484 | break; | |
3485 | } | |
3486 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3487 | default: | |
3488 | return -EINVAL; | |
3489 | } | |
3490 | ||
3491 | return 0; | |
3492 | } | |
3493 | ||
3494 | static int vino_v4l2_s_parm(struct vino_channel_settings *vcs, | |
3495 | struct v4l2_streamparm *sp) | |
3496 | { | |
a637a114 LM |
3497 | unsigned long flags; |
3498 | ||
d203a7ec RB |
3499 | switch (sp->type) { |
3500 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3501 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3502 | ||
a637a114 | 3503 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3504 | |
3505 | if ((cp->timeperframe.numerator == 0) || | |
3506 | (cp->timeperframe.denominator == 0)) { | |
3507 | /* reset framerate */ | |
3508 | vino_set_default_framerate(vcs); | |
3509 | } else { | |
3510 | vino_set_framerate(vcs, cp->timeperframe.denominator / | |
3511 | cp->timeperframe.numerator); | |
3512 | } | |
a637a114 LM |
3513 | |
3514 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3515 | |
3516 | // TODO: set buffers according to cp->readbuffers | |
3517 | break; | |
3518 | } | |
3519 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3520 | default: | |
3521 | return -EINVAL; | |
3522 | } | |
3523 | ||
3524 | return 0; | |
3525 | } | |
3526 | ||
3527 | static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs, | |
3528 | struct v4l2_requestbuffers *rb) | |
3529 | { | |
3530 | if (vcs->reading) | |
3531 | return -EBUSY; | |
3532 | ||
3533 | switch (rb->type) { | |
3534 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3535 | // TODO: check queue type | |
3536 | if (rb->memory != V4L2_MEMORY_MMAP) { | |
3537 | dprintk("type not mmap\n"); | |
3538 | return -EINVAL; | |
3539 | } | |
3540 | ||
d203a7ec RB |
3541 | dprintk("count = %d\n", rb->count); |
3542 | if (rb->count > 0) { | |
a637a114 LM |
3543 | if (vino_is_capturing(vcs)) { |
3544 | dprintk("busy, capturing\n"); | |
3545 | return -EBUSY; | |
3546 | } | |
3547 | ||
d203a7ec RB |
3548 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { |
3549 | dprintk("busy, buffers still mapped\n"); | |
3550 | return -EBUSY; | |
3551 | } else { | |
a637a114 | 3552 | vcs->streaming = 0; |
d203a7ec RB |
3553 | vino_queue_free(&vcs->fb_queue); |
3554 | vino_queue_init(&vcs->fb_queue, &rb->count); | |
3555 | } | |
3556 | } else { | |
a637a114 | 3557 | vcs->streaming = 0; |
d203a7ec RB |
3558 | vino_capture_stop(vcs); |
3559 | vino_queue_free(&vcs->fb_queue); | |
3560 | } | |
3561 | break; | |
3562 | } | |
3563 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3564 | default: | |
3565 | return -EINVAL; | |
3566 | } | |
3567 | ||
3568 | return 0; | |
3569 | } | |
3570 | ||
3571 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, | |
3572 | struct vino_framebuffer *fb, | |
3573 | struct v4l2_buffer *b) | |
3574 | { | |
3575 | if (vino_queue_outgoing_contains(&vcs->fb_queue, | |
3576 | fb->id)) { | |
3577 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; | |
3578 | b->flags |= V4L2_BUF_FLAG_DONE; | |
3579 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, | |
3580 | fb->id)) { | |
3581 | b->flags &= ~V4L2_BUF_FLAG_DONE; | |
3582 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
3583 | } else { | |
3584 | b->flags &= ~(V4L2_BUF_FLAG_DONE | | |
3585 | V4L2_BUF_FLAG_QUEUED); | |
3586 | } | |
3587 | ||
3588 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); | |
3589 | ||
3590 | if (fb->map_count > 0) | |
3591 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
3592 | ||
3593 | b->index = fb->id; | |
3594 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? | |
3595 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; | |
3596 | b->m.offset = fb->offset; | |
3597 | b->bytesused = fb->data_size; | |
3598 | b->length = fb->size; | |
3599 | b->field = V4L2_FIELD_INTERLACED; | |
3600 | b->sequence = fb->frame_counter; | |
3601 | memcpy(&b->timestamp, &fb->timestamp, | |
3602 | sizeof(struct timeval)); | |
3603 | // b->input ? | |
3604 | ||
3605 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", | |
3606 | fb->id, fb->size, fb->data_size, fb->offset); | |
3607 | } | |
3608 | ||
3609 | static int vino_v4l2_querybuf(struct vino_channel_settings *vcs, | |
3610 | struct v4l2_buffer *b) | |
3611 | { | |
3612 | if (vcs->reading) | |
3613 | return -EBUSY; | |
3614 | ||
3615 | switch (b->type) { | |
3616 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3617 | struct vino_framebuffer *fb; | |
3618 | ||
3619 | // TODO: check queue type | |
3620 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { | |
3621 | dprintk("invalid index = %d\n", | |
3622 | b->index); | |
3623 | return -EINVAL; | |
3624 | } | |
3625 | ||
3626 | fb = vino_queue_get_buffer(&vcs->fb_queue, | |
3627 | b->index); | |
3628 | if (fb == NULL) { | |
3629 | dprintk("vino_queue_get_buffer() failed"); | |
3630 | return -EINVAL; | |
3631 | } | |
3632 | ||
3633 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3634 | break; | |
3635 | } | |
3636 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3637 | default: | |
3638 | return -EINVAL; | |
3639 | } | |
3640 | ||
3641 | return 0; | |
3642 | } | |
3643 | ||
3644 | static int vino_v4l2_qbuf(struct vino_channel_settings *vcs, | |
3645 | struct v4l2_buffer *b) | |
3646 | { | |
3647 | if (vcs->reading) | |
3648 | return -EBUSY; | |
3649 | ||
3650 | switch (b->type) { | |
3651 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3652 | struct vino_framebuffer *fb; | |
3653 | int ret; | |
3654 | ||
3655 | // TODO: check queue type | |
3656 | if (b->memory != V4L2_MEMORY_MMAP) { | |
3657 | dprintk("type not mmap\n"); | |
3658 | return -EINVAL; | |
3659 | } | |
3660 | ||
3661 | fb = vino_capture_enqueue(vcs, b->index); | |
3662 | if (fb == NULL) | |
3663 | return -EINVAL; | |
3664 | ||
3665 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3666 | ||
3667 | if (vcs->streaming) { | |
3668 | ret = vino_capture_next(vcs, 1); | |
3669 | if (ret) | |
3670 | return ret; | |
3671 | } | |
3672 | break; | |
3673 | } | |
3674 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3675 | default: | |
3676 | return -EINVAL; | |
3677 | } | |
3678 | ||
3679 | return 0; | |
3680 | } | |
3681 | ||
3682 | static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs, | |
3683 | struct v4l2_buffer *b, | |
3684 | unsigned int nonblocking) | |
3685 | { | |
3686 | if (vcs->reading) | |
3687 | return -EBUSY; | |
3688 | ||
3689 | switch (b->type) { | |
3690 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3691 | struct vino_framebuffer *fb; | |
3692 | unsigned int incoming, outgoing; | |
3693 | int err; | |
3694 | ||
3695 | // TODO: check queue type | |
3696 | ||
3697 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3698 | if (err) { | |
3699 | dprintk("vino_queue_get_incoming() failed\n"); | |
a637a114 | 3700 | return -EINVAL; |
d203a7ec RB |
3701 | } |
3702 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); | |
3703 | if (err) { | |
3704 | dprintk("vino_queue_get_outgoing() failed\n"); | |
a637a114 | 3705 | return -EINVAL; |
d203a7ec RB |
3706 | } |
3707 | ||
3708 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); | |
3709 | ||
3710 | if (outgoing == 0) { | |
3711 | if (incoming == 0) { | |
3712 | dprintk("no incoming or outgoing buffers\n"); | |
3713 | return -EINVAL; | |
3714 | } | |
3715 | if (nonblocking) { | |
3716 | dprintk("non-blocking I/O was selected and " | |
3717 | "there are no buffers to dequeue\n"); | |
3718 | return -EAGAIN; | |
3719 | } | |
3720 | ||
3721 | err = vino_wait_for_frame(vcs); | |
3722 | if (err) { | |
3723 | err = vino_wait_for_frame(vcs); | |
3724 | if (err) { | |
a637a114 LM |
3725 | /* interrupted or |
3726 | * no frames captured because | |
3727 | * of frame skipping */ | |
3728 | // vino_capture_failed(vcs); | |
d203a7ec RB |
3729 | return -EIO; |
3730 | } | |
3731 | } | |
3732 | } | |
3733 | ||
3734 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); | |
3735 | if (fb == NULL) { | |
3736 | dprintk("vino_queue_remove() failed\n"); | |
3737 | return -EINVAL; | |
3738 | } | |
3739 | ||
3740 | err = vino_check_buffer(vcs, fb); | |
a637a114 LM |
3741 | |
3742 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3743 | ||
d203a7ec RB |
3744 | if (err) |
3745 | return -EIO; | |
3746 | ||
d203a7ec RB |
3747 | break; |
3748 | } | |
3749 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3750 | default: | |
3751 | return -EINVAL; | |
3752 | } | |
3753 | ||
3754 | return 0; | |
3755 | } | |
3756 | ||
3757 | static int vino_v4l2_streamon(struct vino_channel_settings *vcs) | |
3758 | { | |
3759 | unsigned int incoming; | |
3760 | int ret; | |
3761 | if (vcs->reading) | |
3762 | return -EBUSY; | |
3763 | ||
3764 | if (vcs->streaming) | |
3765 | return 0; | |
3766 | ||
3767 | // TODO: check queue type | |
3768 | ||
3769 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { | |
3770 | dprintk("no buffers allocated\n"); | |
3771 | return -EINVAL; | |
3772 | } | |
3773 | ||
3774 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3775 | if (ret) { | |
3776 | dprintk("vino_queue_get_incoming() failed\n"); | |
3777 | return -EINVAL; | |
3778 | } | |
3779 | ||
3780 | vcs->streaming = 1; | |
3781 | ||
3782 | if (incoming > 0) { | |
3783 | ret = vino_capture_next(vcs, 1); | |
3784 | if (ret) { | |
3785 | vcs->streaming = 0; | |
3786 | ||
3787 | dprintk("couldn't start capture\n"); | |
3788 | return -EINVAL; | |
3789 | } | |
3790 | } | |
3791 | ||
3792 | return 0; | |
3793 | } | |
3794 | ||
3795 | static int vino_v4l2_streamoff(struct vino_channel_settings *vcs) | |
3796 | { | |
3797 | if (vcs->reading) | |
3798 | return -EBUSY; | |
3799 | ||
3800 | if (!vcs->streaming) | |
3801 | return 0; | |
3802 | ||
d203a7ec | 3803 | vcs->streaming = 0; |
a637a114 | 3804 | vino_capture_stop(vcs); |
d203a7ec RB |
3805 | |
3806 | return 0; | |
3807 | } | |
3808 | ||
3809 | static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs, | |
3810 | struct v4l2_queryctrl *queryctrl) | |
3811 | { | |
a637a114 | 3812 | unsigned long flags; |
d203a7ec RB |
3813 | int i; |
3814 | int err = 0; | |
3815 | ||
a637a114 | 3816 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3817 | |
3818 | switch (vcs->input) { | |
3819 | case VINO_INPUT_D1: | |
3820 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3821 | if (vino_indycam_v4l2_controls[i].id == | |
3822 | queryctrl->id) { | |
3823 | memcpy(queryctrl, | |
3824 | &vino_indycam_v4l2_controls[i], | |
3825 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3826 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3827 | goto found; |
3828 | } | |
3829 | } | |
3830 | ||
3831 | err = -EINVAL; | |
3832 | break; | |
3833 | case VINO_INPUT_COMPOSITE: | |
3834 | case VINO_INPUT_SVIDEO: | |
3835 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3836 | if (vino_saa7191_v4l2_controls[i].id == | |
3837 | queryctrl->id) { | |
3838 | memcpy(queryctrl, | |
3839 | &vino_saa7191_v4l2_controls[i], | |
3840 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3841 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3842 | goto found; |
3843 | } | |
3844 | } | |
3845 | ||
3846 | err = -EINVAL; | |
3847 | break; | |
3848 | default: | |
3849 | err = -EINVAL; | |
3850 | } | |
3851 | ||
3852 | found: | |
a637a114 | 3853 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3854 | |
3855 | return err; | |
3856 | } | |
3857 | ||
3858 | static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs, | |
3859 | struct v4l2_control *control) | |
3860 | { | |
a637a114 LM |
3861 | unsigned long flags; |
3862 | int i; | |
d203a7ec RB |
3863 | int err = 0; |
3864 | ||
a637a114 | 3865 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3866 | |
3867 | switch (vcs->input) { | |
a637a114 LM |
3868 | case VINO_INPUT_D1: { |
3869 | struct indycam_control indycam_ctrl; | |
d203a7ec | 3870 | |
a637a114 LM |
3871 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3872 | if (vino_indycam_v4l2_controls[i].id == | |
3873 | control->id) { | |
3874 | goto found1; | |
3875 | } | |
3876 | } | |
3877 | ||
3878 | err = -EINVAL; | |
3879 | goto out; | |
3880 | ||
3881 | found1: | |
3882 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3883 | ||
3884 | err = i2c_camera_command(DECODER_INDYCAM_GET_CONTROL, | |
3885 | &indycam_ctrl); | |
3886 | if (err) { | |
d203a7ec | 3887 | err = -EINVAL; |
a637a114 | 3888 | goto out; |
d203a7ec | 3889 | } |
a637a114 LM |
3890 | |
3891 | control->value = indycam_ctrl.value; | |
d203a7ec | 3892 | break; |
a637a114 | 3893 | } |
d203a7ec | 3894 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3895 | case VINO_INPUT_SVIDEO: { |
3896 | struct saa7191_control saa7191_ctrl; | |
d203a7ec | 3897 | |
a637a114 LM |
3898 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
3899 | if (vino_saa7191_v4l2_controls[i].id == | |
3900 | control->id) { | |
3901 | goto found2; | |
3902 | } | |
3903 | } | |
3904 | ||
3905 | err = -EINVAL; | |
3906 | goto out; | |
3907 | ||
3908 | found2: | |
3909 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
3910 | ||
3911 | err = i2c_decoder_command(DECODER_SAA7191_GET_CONTROL, | |
3912 | &saa7191_ctrl); | |
3913 | if (err) { | |
d203a7ec | 3914 | err = -EINVAL; |
a637a114 | 3915 | goto out; |
d203a7ec | 3916 | } |
a637a114 LM |
3917 | |
3918 | control->value = saa7191_ctrl.value; | |
d203a7ec | 3919 | break; |
a637a114 | 3920 | } |
d203a7ec RB |
3921 | default: |
3922 | err = -EINVAL; | |
3923 | } | |
3924 | ||
a637a114 LM |
3925 | out: |
3926 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3927 | |
3928 | return err; | |
3929 | } | |
3930 | ||
3931 | static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs, | |
3932 | struct v4l2_control *control) | |
3933 | { | |
a637a114 | 3934 | unsigned long flags; |
d203a7ec RB |
3935 | int i; |
3936 | int err = 0; | |
3937 | ||
a637a114 LM |
3938 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3939 | ||
3940 | if (!vino_is_input_owner(vcs)) { | |
3941 | err = -EBUSY; | |
3942 | goto out; | |
3943 | } | |
d203a7ec RB |
3944 | |
3945 | switch (vcs->input) { | |
a637a114 LM |
3946 | case VINO_INPUT_D1: { |
3947 | struct indycam_control indycam_ctrl; | |
3948 | ||
d203a7ec RB |
3949 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3950 | if (vino_indycam_v4l2_controls[i].id == | |
3951 | control->id) { | |
3952 | if ((control->value >= | |
3953 | vino_indycam_v4l2_controls[i].minimum) | |
3954 | && (control->value <= | |
3955 | vino_indycam_v4l2_controls[i]. | |
3956 | maximum)) { | |
a637a114 | 3957 | goto found1; |
d203a7ec RB |
3958 | } else { |
3959 | err = -ERANGE; | |
a637a114 | 3960 | goto out; |
d203a7ec RB |
3961 | } |
3962 | } | |
3963 | } | |
a637a114 | 3964 | |
d203a7ec | 3965 | err = -EINVAL; |
a637a114 | 3966 | goto out; |
d203a7ec | 3967 | |
a637a114 LM |
3968 | found1: |
3969 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3970 | indycam_ctrl.value = control->value; | |
d203a7ec | 3971 | |
a637a114 LM |
3972 | err = i2c_camera_command(DECODER_INDYCAM_SET_CONTROL, |
3973 | &indycam_ctrl); | |
3974 | if (err) | |
3975 | err = -EINVAL; | |
d203a7ec | 3976 | break; |
a637a114 | 3977 | } |
d203a7ec | 3978 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3979 | case VINO_INPUT_SVIDEO: { |
3980 | struct saa7191_control saa7191_ctrl; | |
3981 | ||
d203a7ec RB |
3982 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
3983 | if (vino_saa7191_v4l2_controls[i].id == | |
3984 | control->id) { | |
3985 | if ((control->value >= | |
3986 | vino_saa7191_v4l2_controls[i].minimum) | |
3987 | && (control->value <= | |
3988 | vino_saa7191_v4l2_controls[i]. | |
3989 | maximum)) { | |
a637a114 | 3990 | goto found2; |
d203a7ec RB |
3991 | } else { |
3992 | err = -ERANGE; | |
a637a114 | 3993 | goto out; |
d203a7ec RB |
3994 | } |
3995 | } | |
3996 | } | |
3997 | err = -EINVAL; | |
a637a114 | 3998 | goto out; |
d203a7ec | 3999 | |
a637a114 LM |
4000 | found2: |
4001 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
4002 | saa7191_ctrl.value = control->value; | |
d203a7ec | 4003 | |
a637a114 LM |
4004 | err = i2c_decoder_command(DECODER_SAA7191_SET_CONTROL, |
4005 | &saa7191_ctrl); | |
4006 | if (err) | |
4007 | err = -EINVAL; | |
d203a7ec | 4008 | break; |
a637a114 | 4009 | } |
d203a7ec RB |
4010 | default: |
4011 | err = -EINVAL; | |
4012 | } | |
4013 | ||
a637a114 LM |
4014 | out: |
4015 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
4016 | |
4017 | return err; | |
4018 | } | |
4019 | ||
4020 | /* File operations */ | |
4021 | ||
bec43661 | 4022 | static int vino_open(struct file *file) |
d203a7ec | 4023 | { |
c170ecf4 | 4024 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4025 | int ret = 0; |
4026 | dprintk("open(): channel = %c\n", | |
4027 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); | |
4028 | ||
3593cab5 | 4029 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4030 | |
4031 | if (vcs->users) { | |
4032 | dprintk("open(): driver busy\n"); | |
4033 | ret = -EBUSY; | |
4034 | goto out; | |
4035 | } | |
4036 | ||
4037 | ret = vino_acquire_input(vcs); | |
4038 | if (ret) { | |
4039 | dprintk("open(): vino_acquire_input() failed\n"); | |
4040 | goto out; | |
4041 | } | |
4042 | ||
4043 | vcs->users++; | |
4044 | ||
4045 | out: | |
3593cab5 | 4046 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4047 | |
4048 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); | |
4049 | ||
4050 | return ret; | |
4051 | } | |
4052 | ||
bec43661 | 4053 | static int vino_close(struct file *file) |
d203a7ec | 4054 | { |
c170ecf4 | 4055 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4056 | dprintk("close():\n"); |
4057 | ||
3593cab5 | 4058 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4059 | |
4060 | vcs->users--; | |
4061 | ||
4062 | if (!vcs->users) { | |
4063 | vino_release_input(vcs); | |
4064 | ||
4065 | /* stop DMA and free buffers */ | |
4066 | vino_capture_stop(vcs); | |
4067 | vino_queue_free(&vcs->fb_queue); | |
4068 | } | |
4069 | ||
3593cab5 | 4070 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4071 | |
4072 | return 0; | |
4073 | } | |
4074 | ||
4075 | static void vino_vm_open(struct vm_area_struct *vma) | |
4076 | { | |
4077 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4078 | ||
4079 | fb->map_count++; | |
4080 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); | |
4081 | } | |
4082 | ||
4083 | static void vino_vm_close(struct vm_area_struct *vma) | |
4084 | { | |
4085 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4086 | ||
4087 | fb->map_count--; | |
4088 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); | |
4089 | } | |
4090 | ||
4091 | static struct vm_operations_struct vino_vm_ops = { | |
4092 | .open = vino_vm_open, | |
4093 | .close = vino_vm_close, | |
4094 | }; | |
4095 | ||
4096 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) | |
4097 | { | |
c170ecf4 | 4098 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4099 | |
4100 | unsigned long start = vma->vm_start; | |
4101 | unsigned long size = vma->vm_end - vma->vm_start; | |
4102 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; | |
4103 | ||
4104 | struct vino_framebuffer *fb = NULL; | |
4105 | unsigned int i, length; | |
4106 | int ret = 0; | |
4107 | ||
4108 | dprintk("mmap():\n"); | |
4109 | ||
4110 | // TODO: reject mmap if already mapped | |
4111 | ||
3593cab5 | 4112 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4113 | return -EINTR; |
4114 | ||
4115 | if (vcs->reading) { | |
4116 | ret = -EBUSY; | |
4117 | goto out; | |
4118 | } | |
4119 | ||
4120 | // TODO: check queue type | |
4121 | ||
4122 | if (!(vma->vm_flags & VM_WRITE)) { | |
4123 | dprintk("mmap(): app bug: PROT_WRITE please\n"); | |
4124 | ret = -EINVAL; | |
4125 | goto out; | |
4126 | } | |
4127 | if (!(vma->vm_flags & VM_SHARED)) { | |
4128 | dprintk("mmap(): app bug: MAP_SHARED please\n"); | |
4129 | ret = -EINVAL; | |
4130 | goto out; | |
4131 | } | |
4132 | ||
4133 | /* find the correct buffer using offset */ | |
4134 | length = vino_queue_get_length(&vcs->fb_queue); | |
4135 | if (length == 0) { | |
4136 | dprintk("mmap(): queue not initialized\n"); | |
4137 | ret = -EINVAL; | |
4138 | goto out; | |
4139 | } | |
4140 | ||
4141 | for (i = 0; i < length; i++) { | |
4142 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); | |
4143 | if (fb == NULL) { | |
4144 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); | |
4145 | ret = -EINVAL; | |
4146 | goto out; | |
4147 | } | |
4148 | ||
4149 | if (fb->offset == offset) | |
4150 | goto found; | |
4151 | } | |
4152 | ||
4153 | dprintk("mmap(): invalid offset = %lu\n", offset); | |
4154 | ret = -EINVAL; | |
4155 | goto out; | |
4156 | ||
4157 | found: | |
4158 | dprintk("mmap(): buffer = %d\n", i); | |
4159 | ||
4160 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { | |
4161 | dprintk("mmap(): failed: size = %lu > %lu\n", | |
4162 | size, fb->desc_table.page_count * PAGE_SIZE); | |
4163 | ret = -EINVAL; | |
4164 | goto out; | |
4165 | } | |
4166 | ||
4167 | for (i = 0; i < fb->desc_table.page_count; i++) { | |
4168 | unsigned long pfn = | |
4169 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> | |
4170 | PAGE_SHIFT; | |
4171 | ||
4172 | if (size < PAGE_SIZE) | |
4173 | break; | |
4174 | ||
4175 | // protection was: PAGE_READONLY | |
4176 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, | |
4177 | vma->vm_page_prot)) { | |
4178 | dprintk("mmap(): remap_pfn_range() failed\n"); | |
4179 | ret = -EAGAIN; | |
4180 | goto out; | |
4181 | } | |
4182 | ||
4183 | start += PAGE_SIZE; | |
4184 | size -= PAGE_SIZE; | |
4185 | } | |
4186 | ||
4187 | fb->map_count = 1; | |
4188 | ||
4189 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; | |
4190 | vma->vm_flags &= ~VM_IO; | |
4191 | vma->vm_private_data = fb; | |
4192 | vma->vm_file = file; | |
4193 | vma->vm_ops = &vino_vm_ops; | |
4194 | ||
4195 | out: | |
3593cab5 | 4196 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4197 | |
4198 | return ret; | |
4199 | } | |
4200 | ||
4201 | static unsigned int vino_poll(struct file *file, poll_table *pt) | |
4202 | { | |
c170ecf4 | 4203 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4204 | unsigned int outgoing; |
4205 | unsigned int ret = 0; | |
4206 | ||
4207 | // lock mutex (?) | |
4208 | // TODO: this has to be corrected for different read modes | |
4209 | ||
4210 | dprintk("poll():\n"); | |
4211 | ||
4212 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4213 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4214 | ret = POLLERR; | |
4215 | goto error; | |
4216 | } | |
4217 | if (outgoing > 0) | |
4218 | goto over; | |
4219 | ||
4220 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); | |
4221 | ||
4222 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4223 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4224 | ret = POLLERR; | |
4225 | goto error; | |
4226 | } | |
4227 | ||
4228 | over: | |
4229 | dprintk("poll(): data %savailable\n", | |
4230 | (outgoing > 0) ? "" : "not "); | |
a637a114 LM |
4231 | |
4232 | if (outgoing > 0) | |
d203a7ec | 4233 | ret = POLLIN | POLLRDNORM; |
d203a7ec RB |
4234 | |
4235 | error: | |
4236 | ||
4237 | return ret; | |
4238 | } | |
4239 | ||
f473bf76 | 4240 | static int vino_do_ioctl(struct file *file, unsigned int cmd, void *arg) |
d203a7ec | 4241 | { |
c170ecf4 | 4242 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec | 4243 | |
a637a114 | 4244 | #ifdef VINO_DEBUG |
d203a7ec RB |
4245 | switch (_IOC_TYPE(cmd)) { |
4246 | case 'v': | |
4247 | dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd); | |
4248 | break; | |
4249 | case 'V': | |
4250 | dprintk("ioctl(): V4L2 %s (0x%08x)\n", | |
4251 | v4l2_ioctl_names[_IOC_NR(cmd)], cmd); | |
4252 | break; | |
4253 | default: | |
4254 | dprintk("ioctl(): unsupported command 0x%08x\n", cmd); | |
4255 | } | |
a637a114 | 4256 | #endif |
d203a7ec RB |
4257 | |
4258 | switch (cmd) { | |
d203a7ec RB |
4259 | /* V4L2 interface */ |
4260 | case VIDIOC_QUERYCAP: { | |
4261 | vino_v4l2_querycap(arg); | |
4262 | break; | |
4263 | } | |
4264 | case VIDIOC_ENUMINPUT: { | |
4265 | return vino_v4l2_enuminput(vcs, arg); | |
4266 | } | |
4267 | case VIDIOC_G_INPUT: { | |
4268 | return vino_v4l2_g_input(vcs, arg); | |
4269 | } | |
4270 | case VIDIOC_S_INPUT: { | |
4271 | return vino_v4l2_s_input(vcs, arg); | |
4272 | } | |
4273 | case VIDIOC_ENUMSTD: { | |
4274 | return vino_v4l2_enumstd(vcs, arg); | |
4275 | } | |
a637a114 LM |
4276 | case VIDIOC_QUERYSTD: { |
4277 | return vino_v4l2_querystd(vcs, arg); | |
4278 | } | |
d203a7ec RB |
4279 | case VIDIOC_G_STD: { |
4280 | return vino_v4l2_g_std(vcs, arg); | |
4281 | } | |
4282 | case VIDIOC_S_STD: { | |
4283 | return vino_v4l2_s_std(vcs, arg); | |
4284 | } | |
4285 | case VIDIOC_ENUM_FMT: { | |
4286 | return vino_v4l2_enum_fmt(vcs, arg); | |
4287 | } | |
4288 | case VIDIOC_TRY_FMT: { | |
4289 | return vino_v4l2_try_fmt(vcs, arg); | |
4290 | } | |
4291 | case VIDIOC_G_FMT: { | |
4292 | return vino_v4l2_g_fmt(vcs, arg); | |
4293 | } | |
4294 | case VIDIOC_S_FMT: { | |
4295 | return vino_v4l2_s_fmt(vcs, arg); | |
4296 | } | |
4297 | case VIDIOC_CROPCAP: { | |
4298 | return vino_v4l2_cropcap(vcs, arg); | |
4299 | } | |
4300 | case VIDIOC_G_CROP: { | |
4301 | return vino_v4l2_g_crop(vcs, arg); | |
4302 | } | |
4303 | case VIDIOC_S_CROP: { | |
4304 | return vino_v4l2_s_crop(vcs, arg); | |
4305 | } | |
4306 | case VIDIOC_G_PARM: { | |
4307 | return vino_v4l2_g_parm(vcs, arg); | |
4308 | } | |
4309 | case VIDIOC_S_PARM: { | |
4310 | return vino_v4l2_s_parm(vcs, arg); | |
4311 | } | |
4312 | case VIDIOC_REQBUFS: { | |
4313 | return vino_v4l2_reqbufs(vcs, arg); | |
4314 | } | |
4315 | case VIDIOC_QUERYBUF: { | |
4316 | return vino_v4l2_querybuf(vcs, arg); | |
4317 | } | |
4318 | case VIDIOC_QBUF: { | |
4319 | return vino_v4l2_qbuf(vcs, arg); | |
4320 | } | |
4321 | case VIDIOC_DQBUF: { | |
4322 | return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK); | |
4323 | } | |
4324 | case VIDIOC_STREAMON: { | |
4325 | return vino_v4l2_streamon(vcs); | |
4326 | } | |
4327 | case VIDIOC_STREAMOFF: { | |
4328 | return vino_v4l2_streamoff(vcs); | |
4329 | } | |
4330 | case VIDIOC_QUERYCTRL: { | |
4331 | return vino_v4l2_queryctrl(vcs, arg); | |
4332 | } | |
4333 | case VIDIOC_G_CTRL: { | |
4334 | return vino_v4l2_g_ctrl(vcs, arg); | |
4335 | } | |
4336 | case VIDIOC_S_CTRL: { | |
4337 | return vino_v4l2_s_ctrl(vcs, arg); | |
4338 | } | |
4339 | default: | |
4340 | return -ENOIOCTLCMD; | |
4341 | } | |
4342 | ||
4343 | return 0; | |
4344 | } | |
4345 | ||
bec43661 | 4346 | static int vino_ioctl(struct file *file, |
d203a7ec RB |
4347 | unsigned int cmd, unsigned long arg) |
4348 | { | |
c170ecf4 | 4349 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4350 | int ret; |
4351 | ||
3593cab5 | 4352 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4353 | return -EINTR; |
4354 | ||
f473bf76 | 4355 | ret = video_usercopy(file, cmd, arg, vino_do_ioctl); |
d203a7ec | 4356 | |
3593cab5 | 4357 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4358 | |
4359 | return ret; | |
4360 | } | |
4361 | ||
4362 | /* Initialization and cleanup */ | |
4363 | ||
ff699e6b DSL |
4364 | /* __initdata */ |
4365 | static int vino_init_stage; | |
d203a7ec | 4366 | |
bec43661 | 4367 | static const struct v4l2_file_operations vino_fops = { |
d203a7ec RB |
4368 | .owner = THIS_MODULE, |
4369 | .open = vino_open, | |
4370 | .release = vino_close, | |
4371 | .ioctl = vino_ioctl, | |
4372 | .mmap = vino_mmap, | |
4373 | .poll = vino_poll, | |
d203a7ec RB |
4374 | }; |
4375 | ||
4376 | static struct video_device v4l_device_template = { | |
4377 | .name = "NOT SET", | |
d203a7ec RB |
4378 | .fops = &vino_fops, |
4379 | .minor = -1, | |
4380 | }; | |
4381 | ||
4382 | static void vino_module_cleanup(int stage) | |
4383 | { | |
4384 | switch(stage) { | |
4385 | case 10: | |
4386 | video_unregister_device(vino_drvdata->b.v4l_device); | |
4387 | vino_drvdata->b.v4l_device = NULL; | |
4388 | case 9: | |
4389 | video_unregister_device(vino_drvdata->a.v4l_device); | |
4390 | vino_drvdata->a.v4l_device = NULL; | |
4391 | case 8: | |
4392 | vino_i2c_del_bus(); | |
4393 | case 7: | |
4394 | free_irq(SGI_VINO_IRQ, NULL); | |
4395 | case 6: | |
4396 | if (vino_drvdata->b.v4l_device) { | |
4397 | video_device_release(vino_drvdata->b.v4l_device); | |
4398 | vino_drvdata->b.v4l_device = NULL; | |
4399 | } | |
4400 | case 5: | |
4401 | if (vino_drvdata->a.v4l_device) { | |
4402 | video_device_release(vino_drvdata->a.v4l_device); | |
4403 | vino_drvdata->a.v4l_device = NULL; | |
4404 | } | |
4405 | case 4: | |
4406 | /* all entries in dma_cpu dummy table have the same address */ | |
4407 | dma_unmap_single(NULL, | |
4408 | vino_drvdata->dummy_desc_table.dma_cpu[0], | |
4409 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4410 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT | |
4411 | * sizeof(dma_addr_t), | |
4412 | (void *)vino_drvdata-> | |
4413 | dummy_desc_table.dma_cpu, | |
4414 | vino_drvdata->dummy_desc_table.dma); | |
4415 | case 3: | |
4416 | free_page(vino_drvdata->dummy_page); | |
4417 | case 2: | |
4418 | kfree(vino_drvdata); | |
4419 | case 1: | |
4420 | iounmap(vino); | |
4421 | case 0: | |
4422 | break; | |
4423 | default: | |
4424 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", | |
4425 | stage); | |
4426 | } | |
4427 | } | |
4428 | ||
4429 | static int vino_probe(void) | |
4430 | { | |
4431 | unsigned long rev_id; | |
4432 | ||
4433 | if (ip22_is_fullhouse()) { | |
4434 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); | |
4435 | return -ENODEV; | |
4436 | } | |
4437 | ||
4438 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { | |
4439 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); | |
4440 | return -ENODEV; | |
4441 | } | |
4442 | ||
4443 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); | |
4444 | if (!vino) { | |
4445 | printk(KERN_ERR "VINO: ioremap() failed\n"); | |
4446 | return -EIO; | |
4447 | } | |
4448 | vino_init_stage++; | |
4449 | ||
4450 | if (get_dbe(rev_id, &(vino->rev_id))) { | |
4451 | printk(KERN_ERR "Failed to read VINO revision register\n"); | |
4452 | vino_module_cleanup(vino_init_stage); | |
4453 | return -ENODEV; | |
4454 | } | |
4455 | ||
4456 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { | |
4457 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", | |
4458 | rev_id); | |
4459 | vino_module_cleanup(vino_init_stage); | |
4460 | return -ENODEV; | |
4461 | } | |
4462 | ||
a637a114 | 4463 | printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); |
d203a7ec RB |
4464 | |
4465 | return 0; | |
4466 | } | |
4467 | ||
4468 | static int vino_init(void) | |
4469 | { | |
4470 | dma_addr_t dma_dummy_address; | |
4471 | int i; | |
4472 | ||
7408187d | 4473 | vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); |
d203a7ec RB |
4474 | if (!vino_drvdata) { |
4475 | vino_module_cleanup(vino_init_stage); | |
4476 | return -ENOMEM; | |
4477 | } | |
d203a7ec RB |
4478 | vino_init_stage++; |
4479 | ||
4480 | /* create a dummy dma descriptor */ | |
4481 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
4482 | if (!vino_drvdata->dummy_page) { | |
4483 | vino_module_cleanup(vino_init_stage); | |
4484 | return -ENOMEM; | |
4485 | } | |
4486 | vino_init_stage++; | |
4487 | ||
4488 | // TODO: use page_count in dummy_desc_table | |
4489 | ||
4490 | vino_drvdata->dummy_desc_table.dma_cpu = | |
4491 | dma_alloc_coherent(NULL, | |
4492 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), | |
4493 | &vino_drvdata->dummy_desc_table.dma, | |
4494 | GFP_KERNEL | GFP_DMA); | |
4495 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { | |
4496 | vino_module_cleanup(vino_init_stage); | |
4497 | return -ENOMEM; | |
4498 | } | |
4499 | vino_init_stage++; | |
4500 | ||
4501 | dma_dummy_address = dma_map_single(NULL, | |
4502 | (void *)vino_drvdata->dummy_page, | |
4503 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4504 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { | |
4505 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; | |
4506 | } | |
4507 | ||
4508 | /* initialize VINO */ | |
4509 | ||
4510 | vino->control = 0; | |
4511 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4512 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4513 | udelay(VINO_DESC_FETCH_DELAY); | |
4514 | ||
4515 | vino->intr_status = 0; | |
4516 | ||
4517 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4518 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4519 | ||
4520 | return 0; | |
4521 | } | |
4522 | ||
4523 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, | |
4524 | unsigned int channel, const char *name) | |
4525 | { | |
4526 | vcs->channel = channel; | |
4527 | vcs->input = VINO_INPUT_NONE; | |
4528 | vcs->alpha = 0; | |
4529 | vcs->users = 0; | |
4530 | vcs->data_format = VINO_DATA_FMT_GREY; | |
4531 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
4532 | vcs->decimation = 1; | |
4533 | vino_set_default_clipping(vcs); | |
4534 | vino_set_default_framerate(vcs); | |
4535 | ||
4536 | vcs->capturing = 0; | |
4537 | ||
3593cab5 | 4538 | mutex_init(&vcs->mutex); |
d203a7ec RB |
4539 | spin_lock_init(&vcs->capture_lock); |
4540 | ||
3593cab5 | 4541 | mutex_init(&vcs->fb_queue.queue_mutex); |
d203a7ec RB |
4542 | spin_lock_init(&vcs->fb_queue.queue_lock); |
4543 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); | |
4544 | ||
4545 | vcs->v4l_device = video_device_alloc(); | |
4546 | if (!vcs->v4l_device) { | |
4547 | vino_module_cleanup(vino_init_stage); | |
4548 | return -ENOMEM; | |
4549 | } | |
4550 | vino_init_stage++; | |
4551 | ||
4552 | memcpy(vcs->v4l_device, &v4l_device_template, | |
4553 | sizeof(struct video_device)); | |
4554 | strcpy(vcs->v4l_device->name, name); | |
4555 | vcs->v4l_device->release = video_device_release; | |
4556 | ||
4557 | video_set_drvdata(vcs->v4l_device, vcs); | |
4558 | ||
4559 | return 0; | |
4560 | } | |
4561 | ||
4562 | static int __init vino_module_init(void) | |
4563 | { | |
4564 | int ret; | |
4565 | ||
4566 | printk(KERN_INFO "SGI VINO driver version %s\n", | |
4567 | VINO_MODULE_VERSION); | |
4568 | ||
4569 | ret = vino_probe(); | |
4570 | if (ret) | |
4571 | return ret; | |
4572 | ||
4573 | ret = vino_init(); | |
4574 | if (ret) | |
4575 | return ret; | |
4576 | ||
4577 | /* initialize data structures */ | |
4578 | ||
4579 | spin_lock_init(&vino_drvdata->vino_lock); | |
4580 | spin_lock_init(&vino_drvdata->input_lock); | |
4581 | ||
4582 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, | |
4583 | vino_v4l_device_name_a); | |
4584 | if (ret) | |
4585 | return ret; | |
4586 | ||
4587 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, | |
4588 | vino_v4l_device_name_b); | |
4589 | if (ret) | |
4590 | return ret; | |
4591 | ||
4592 | /* initialize hardware and register V4L devices */ | |
4593 | ||
4594 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, | |
4595 | vino_driver_description, NULL); | |
4596 | if (ret) { | |
4597 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", | |
4598 | SGI_VINO_IRQ); | |
4599 | vino_module_cleanup(vino_init_stage); | |
4600 | return -EAGAIN; | |
4601 | } | |
4602 | vino_init_stage++; | |
4603 | ||
4604 | ret = vino_i2c_add_bus(); | |
4605 | if (ret) { | |
4606 | printk(KERN_ERR "VINO I2C bus registration failed\n"); | |
4607 | vino_module_cleanup(vino_init_stage); | |
4608 | return ret; | |
4609 | } | |
4610 | vino_init_stage++; | |
4611 | ||
4612 | ret = video_register_device(vino_drvdata->a.v4l_device, | |
4613 | VFL_TYPE_GRABBER, -1); | |
4614 | if (ret < 0) { | |
4615 | printk(KERN_ERR "VINO channel A Video4Linux-device " | |
4616 | "registration failed\n"); | |
4617 | vino_module_cleanup(vino_init_stage); | |
4618 | return -EINVAL; | |
4619 | } | |
4620 | vino_init_stage++; | |
4621 | ||
4622 | ret = video_register_device(vino_drvdata->b.v4l_device, | |
4623 | VFL_TYPE_GRABBER, -1); | |
4624 | if (ret < 0) { | |
4625 | printk(KERN_ERR "VINO channel B Video4Linux-device " | |
4626 | "registration failed\n"); | |
4627 | vino_module_cleanup(vino_init_stage); | |
4628 | return -EINVAL; | |
4629 | } | |
4630 | vino_init_stage++; | |
4631 | ||
a65e5d78 | 4632 | #ifdef MODULE |
d203a7ec RB |
4633 | request_module("saa7191"); |
4634 | request_module("indycam"); | |
4635 | #endif | |
4636 | ||
4637 | dprintk("init complete!\n"); | |
4638 | ||
4639 | return 0; | |
4640 | } | |
4641 | ||
4642 | static void __exit vino_module_exit(void) | |
4643 | { | |
4644 | dprintk("exiting, stage = %d ...\n", vino_init_stage); | |
4645 | vino_module_cleanup(vino_init_stage); | |
4646 | dprintk("cleanup complete, exit!\n"); | |
4647 | } | |
4648 | ||
4649 | module_init(vino_module_init); | |
4650 | module_exit(vino_module_exit); |