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Commit | Line | Data |
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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 LM |
15 | * - remove "mark pages reserved-hacks" from memory allocation code |
16 | * and implement nopage() | |
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> | |
d203a7ec | 31 | #include <linux/moduleparam.h> |
495515b3 LM |
32 | #include <linux/time.h> |
33 | #include <linux/version.h> | |
d203a7ec RB |
34 | |
35 | #ifdef CONFIG_KMOD | |
36 | #include <linux/kmod.h> | |
37 | #endif | |
38 | ||
1da177e4 LT |
39 | #include <linux/i2c.h> |
40 | #include <linux/i2c-algo-sgi.h> | |
41 | ||
d203a7ec | 42 | #include <linux/videodev.h> |
5e87efa3 | 43 | #include <media/v4l2-common.h> |
d203a7ec | 44 | #include <linux/video_decoder.h> |
3593cab5 | 45 | #include <linux/mutex.h> |
d203a7ec | 46 | |
1da177e4 LT |
47 | #include <asm/paccess.h> |
48 | #include <asm/io.h> | |
49 | #include <asm/sgi/ip22.h> | |
1da177e4 LT |
50 | #include <asm/sgi/mc.h> |
51 | ||
52 | #include "vino.h" | |
d203a7ec RB |
53 | #include "saa7191.h" |
54 | #include "indycam.h" | |
1da177e4 | 55 | |
d203a7ec RB |
56 | /* Uncomment the following line to get lots and lots of (mostly useless) |
57 | * debug info. | |
58 | * Note that the debug output also slows down the driver significantly */ | |
59 | // #define VINO_DEBUG | |
a637a114 | 60 | // #define VINO_DEBUG_INT |
d203a7ec | 61 | |
a637a114 LM |
62 | #define VINO_MODULE_VERSION "0.0.5" |
63 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5) | |
d203a7ec RB |
64 | |
65 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); | |
66 | MODULE_VERSION(VINO_MODULE_VERSION); | |
67 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
68 | MODULE_LICENSE("GPL"); | |
69 | ||
d203a7ec RB |
70 | #ifdef VINO_DEBUG |
71 | #define dprintk(x...) printk("VINO: " x); | |
1da177e4 | 72 | #else |
d203a7ec | 73 | #define dprintk(x...) |
1da177e4 LT |
74 | #endif |
75 | ||
d203a7ec RB |
76 | #define VINO_NO_CHANNEL 0 |
77 | #define VINO_CHANNEL_A 1 | |
78 | #define VINO_CHANNEL_B 2 | |
79 | ||
80 | #define VINO_PAL_WIDTH 768 | |
81 | #define VINO_PAL_HEIGHT 576 | |
82 | #define VINO_NTSC_WIDTH 640 | |
83 | #define VINO_NTSC_HEIGHT 480 | |
84 | ||
85 | #define VINO_MIN_WIDTH 32 | |
86 | #define VINO_MIN_HEIGHT 32 | |
87 | ||
88 | #define VINO_CLIPPING_START_ODD_D1 1 | |
a637a114 LM |
89 | #define VINO_CLIPPING_START_ODD_PAL 15 |
90 | #define VINO_CLIPPING_START_ODD_NTSC 12 | |
d203a7ec RB |
91 | |
92 | #define VINO_CLIPPING_START_EVEN_D1 2 | |
a637a114 LM |
93 | #define VINO_CLIPPING_START_EVEN_PAL 15 |
94 | #define VINO_CLIPPING_START_EVEN_NTSC 12 | |
d203a7ec RB |
95 | |
96 | #define VINO_INPUT_CHANNEL_COUNT 3 | |
97 | ||
a637a114 | 98 | /* the number is the index for vino_inputs */ |
d203a7ec RB |
99 | #define VINO_INPUT_NONE -1 |
100 | #define VINO_INPUT_COMPOSITE 0 | |
101 | #define VINO_INPUT_SVIDEO 1 | |
102 | #define VINO_INPUT_D1 2 | |
103 | ||
104 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) | |
105 | ||
a637a114 | 106 | #define VINO_FIFO_THRESHOLD_DEFAULT 16 |
d203a7ec | 107 | |
d203a7ec RB |
108 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ |
109 | * VINO_PAL_HEIGHT * 4 \ | |
110 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) | |
111 | ||
a637a114 | 112 | #define VINO_FRAMEBUFFER_COUNT_MAX 8 |
d203a7ec RB |
113 | |
114 | #define VINO_FRAMEBUFFER_UNUSED 0 | |
115 | #define VINO_FRAMEBUFFER_IN_USE 1 | |
116 | #define VINO_FRAMEBUFFER_READY 2 | |
117 | ||
118 | #define VINO_QUEUE_ERROR -1 | |
119 | #define VINO_QUEUE_MAGIC 0x20050125 | |
120 | ||
121 | #define VINO_MEMORY_NONE 0 | |
122 | #define VINO_MEMORY_MMAP 1 | |
123 | #define VINO_MEMORY_USERPTR 2 | |
124 | ||
125 | #define VINO_DUMMY_DESC_COUNT 4 | |
126 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ | |
127 | ||
a637a114 LM |
128 | #define VINO_MAX_FRAME_SKIP_COUNT 128 |
129 | ||
d203a7ec RB |
130 | /* the number is the index for vino_data_formats */ |
131 | #define VINO_DATA_FMT_NONE -1 | |
132 | #define VINO_DATA_FMT_GREY 0 | |
133 | #define VINO_DATA_FMT_RGB332 1 | |
134 | #define VINO_DATA_FMT_RGB32 2 | |
135 | #define VINO_DATA_FMT_YUV 3 | |
d203a7ec RB |
136 | |
137 | #define VINO_DATA_FMT_COUNT 4 | |
138 | ||
a637a114 | 139 | /* the number is the index for vino_data_norms */ |
d203a7ec RB |
140 | #define VINO_DATA_NORM_NONE -1 |
141 | #define VINO_DATA_NORM_NTSC 0 | |
142 | #define VINO_DATA_NORM_PAL 1 | |
143 | #define VINO_DATA_NORM_SECAM 2 | |
144 | #define VINO_DATA_NORM_D1 3 | |
a637a114 | 145 | /* The following are special entries that can be used to |
d203a7ec | 146 | * autodetect the norm. */ |
a637a114 LM |
147 | #define VINO_DATA_NORM_AUTO 0xfe |
148 | #define VINO_DATA_NORM_AUTO_EXT 0xff | |
d203a7ec RB |
149 | |
150 | #define VINO_DATA_NORM_COUNT 4 | |
151 | ||
152 | /* Internal data structure definitions */ | |
153 | ||
154 | struct vino_input { | |
155 | char *name; | |
156 | v4l2_std_id std; | |
157 | }; | |
158 | ||
159 | struct vino_clipping { | |
160 | unsigned int left, right, top, bottom; | |
161 | }; | |
162 | ||
163 | struct vino_data_format { | |
164 | /* the description */ | |
165 | char *description; | |
166 | /* bytes per pixel */ | |
167 | unsigned int bpp; | |
168 | /* V4L2 fourcc code */ | |
169 | __u32 pixelformat; | |
170 | /* V4L2 colorspace (duh!) */ | |
171 | enum v4l2_colorspace colorspace; | |
172 | }; | |
173 | ||
174 | struct vino_data_norm { | |
175 | char *description; | |
176 | unsigned int width, height; | |
177 | struct vino_clipping odd; | |
178 | struct vino_clipping even; | |
179 | ||
180 | v4l2_std_id std; | |
181 | unsigned int fps_min, fps_max; | |
182 | __u32 framelines; | |
183 | }; | |
184 | ||
185 | struct vino_descriptor_table { | |
186 | /* the number of PAGE_SIZE sized pages in the buffer */ | |
187 | unsigned int page_count; | |
188 | /* virtual (kmalloc'd) pointers to the actual data | |
189 | * (in PAGE_SIZE chunks, used with mmap streaming) */ | |
190 | unsigned long *virtual; | |
191 | ||
192 | /* cpu address for the VINO descriptor table | |
193 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
194 | unsigned long *dma_cpu; | |
195 | /* dma address for the VINO descriptor table | |
196 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
197 | dma_addr_t dma; | |
198 | }; | |
199 | ||
200 | struct vino_framebuffer { | |
201 | /* identifier nubmer */ | |
202 | unsigned int id; | |
203 | /* the length of the whole buffer */ | |
204 | unsigned int size; | |
205 | /* the length of actual data in buffer */ | |
206 | unsigned int data_size; | |
207 | /* the data format */ | |
208 | unsigned int data_format; | |
209 | /* the state of buffer data */ | |
210 | unsigned int state; | |
211 | /* is the buffer mapped in user space? */ | |
212 | unsigned int map_count; | |
213 | /* memory offset for mmap() */ | |
214 | unsigned int offset; | |
215 | /* frame counter */ | |
216 | unsigned int frame_counter; | |
217 | /* timestamp (written when image capture finishes) */ | |
218 | struct timeval timestamp; | |
219 | ||
220 | struct vino_descriptor_table desc_table; | |
221 | ||
222 | spinlock_t state_lock; | |
223 | }; | |
224 | ||
225 | struct vino_framebuffer_fifo { | |
226 | unsigned int length; | |
227 | ||
228 | unsigned int used; | |
229 | unsigned int head; | |
230 | unsigned int tail; | |
231 | ||
a637a114 | 232 | unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; |
d203a7ec RB |
233 | }; |
234 | ||
235 | struct vino_framebuffer_queue { | |
236 | unsigned int magic; | |
237 | ||
238 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ | |
239 | unsigned int type; | |
240 | unsigned int length; | |
241 | ||
242 | /* data field of in and out contain index numbers for buffer */ | |
243 | struct vino_framebuffer_fifo in; | |
244 | struct vino_framebuffer_fifo out; | |
245 | ||
a637a114 | 246 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; |
1da177e4 | 247 | |
d203a7ec | 248 | spinlock_t queue_lock; |
3593cab5 | 249 | struct mutex queue_mutex; |
d203a7ec RB |
250 | wait_queue_head_t frame_wait_queue; |
251 | }; | |
252 | ||
a637a114 LM |
253 | struct vino_interrupt_data { |
254 | struct timeval timestamp; | |
255 | unsigned int frame_counter; | |
256 | unsigned int skip_count; | |
257 | unsigned int skip; | |
258 | }; | |
259 | ||
d203a7ec RB |
260 | struct vino_channel_settings { |
261 | unsigned int channel; | |
262 | ||
263 | int input; | |
264 | unsigned int data_format; | |
265 | unsigned int data_norm; | |
266 | struct vino_clipping clipping; | |
267 | unsigned int decimation; | |
268 | unsigned int line_size; | |
269 | unsigned int alpha; | |
270 | unsigned int fps; | |
271 | unsigned int framert_reg; | |
272 | ||
273 | unsigned int fifo_threshold; | |
274 | ||
275 | struct vino_framebuffer_queue fb_queue; | |
276 | ||
277 | /* number of the current field */ | |
278 | unsigned int field; | |
279 | ||
280 | /* read in progress */ | |
281 | int reading; | |
282 | /* streaming is active */ | |
283 | int streaming; | |
284 | /* the driver is currently processing the queue */ | |
285 | int capturing; | |
286 | ||
3593cab5 | 287 | struct mutex mutex; |
d203a7ec | 288 | spinlock_t capture_lock; |
1da177e4 | 289 | |
d203a7ec | 290 | unsigned int users; |
1da177e4 | 291 | |
a637a114 LM |
292 | struct vino_interrupt_data int_data; |
293 | ||
d203a7ec RB |
294 | /* V4L support */ |
295 | struct video_device *v4l_device; | |
1da177e4 LT |
296 | }; |
297 | ||
298 | struct vino_client { | |
d203a7ec RB |
299 | /* the channel which owns this client: |
300 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ | |
301 | unsigned int owner; | |
1da177e4 | 302 | struct i2c_client *driver; |
1da177e4 LT |
303 | }; |
304 | ||
d203a7ec RB |
305 | struct vino_settings { |
306 | struct vino_channel_settings a; | |
307 | struct vino_channel_settings b; | |
1da177e4 LT |
308 | |
309 | struct vino_client decoder; | |
310 | struct vino_client camera; | |
311 | ||
d203a7ec RB |
312 | /* a lock for vino register access */ |
313 | spinlock_t vino_lock; | |
314 | /* a lock for channel input changes */ | |
315 | spinlock_t input_lock; | |
1da177e4 | 316 | |
1da177e4 | 317 | unsigned long dummy_page; |
d203a7ec RB |
318 | struct vino_descriptor_table dummy_desc_table; |
319 | }; | |
320 | ||
321 | /* Module parameters */ | |
322 | ||
323 | /* | |
a637a114 | 324 | * Using vino_pixel_conversion the ABGR32-format pixels supplied |
d203a7ec RB |
325 | * by the VINO chip can be converted to more common formats |
326 | * like RGBA32 (or probably RGB24 in the future). This way we | |
327 | * can give out data that can be specified correctly with | |
328 | * the V4L2-definitions. | |
329 | * | |
330 | * The pixel format is specified as RGBA32 when no conversion | |
331 | * is used. | |
332 | * | |
333 | * Note that this only affects the 32-bit bit depth. | |
334 | * | |
335 | * Use non-zero value to enable conversion. | |
336 | */ | |
337 | static int vino_pixel_conversion = 0; | |
a637a114 | 338 | |
d203a7ec | 339 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); |
a637a114 | 340 | |
d203a7ec RB |
341 | MODULE_PARM_DESC(pixelconv, |
342 | "enable pixel conversion (non-zero value enables)"); | |
343 | ||
344 | /* Internal data structures */ | |
345 | ||
346 | static struct sgi_vino *vino; | |
347 | ||
348 | static struct vino_settings *vino_drvdata; | |
349 | ||
350 | static const char *vino_driver_name = "vino"; | |
351 | static const char *vino_driver_description = "SGI VINO"; | |
352 | static const char *vino_bus_name = "GIO64 bus"; | |
353 | static const char *vino_v4l_device_name_a = "SGI VINO Channel A"; | |
354 | static const char *vino_v4l_device_name_b = "SGI VINO Channel B"; | |
355 | ||
a637a114 LM |
356 | static void vino_capture_tasklet(unsigned long channel); |
357 | ||
358 | DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); | |
359 | DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); | |
360 | ||
d203a7ec RB |
361 | static const struct vino_input vino_inputs[] = { |
362 | { | |
363 | .name = "Composite", | |
a637a114 LM |
364 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
365 | | V4L2_STD_SECAM, | |
d203a7ec RB |
366 | },{ |
367 | .name = "S-Video", | |
a637a114 LM |
368 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
369 | | V4L2_STD_SECAM, | |
d203a7ec | 370 | },{ |
a637a114 | 371 | .name = "D1/IndyCam", |
d203a7ec RB |
372 | .std = V4L2_STD_NTSC, |
373 | } | |
374 | }; | |
375 | ||
376 | static const struct vino_data_format vino_data_formats[] = { | |
377 | { | |
378 | .description = "8-bit greyscale", | |
379 | .bpp = 1, | |
380 | .pixelformat = V4L2_PIX_FMT_GREY, | |
381 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
382 | },{ | |
383 | .description = "8-bit dithered RGB 3-3-2", | |
384 | .bpp = 1, | |
385 | .pixelformat = V4L2_PIX_FMT_RGB332, | |
386 | .colorspace = V4L2_COLORSPACE_SRGB, | |
387 | },{ | |
388 | .description = "32-bit RGB", | |
389 | .bpp = 4, | |
390 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
391 | .colorspace = V4L2_COLORSPACE_SRGB, | |
392 | },{ | |
393 | .description = "YUV 4:2:2", | |
a637a114 | 394 | .bpp = 2, |
d203a7ec RB |
395 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? |
396 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a637a114 | 397 | } |
d203a7ec RB |
398 | }; |
399 | ||
400 | static const struct vino_data_norm vino_data_norms[] = { | |
401 | { | |
402 | .description = "NTSC", | |
403 | .std = V4L2_STD_NTSC, | |
404 | .fps_min = 6, | |
405 | .fps_max = 30, | |
406 | .framelines = 525, | |
407 | .width = VINO_NTSC_WIDTH, | |
408 | .height = VINO_NTSC_HEIGHT, | |
409 | .odd = { | |
a637a114 LM |
410 | .top = VINO_CLIPPING_START_ODD_NTSC, |
411 | .left = 0, | |
d203a7ec RB |
412 | .bottom = VINO_CLIPPING_START_ODD_NTSC |
413 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 414 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
415 | }, |
416 | .even = { | |
a637a114 LM |
417 | .top = VINO_CLIPPING_START_EVEN_NTSC, |
418 | .left = 0, | |
d203a7ec RB |
419 | .bottom = VINO_CLIPPING_START_EVEN_NTSC |
420 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 421 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
422 | }, |
423 | },{ | |
424 | .description = "PAL", | |
425 | .std = V4L2_STD_PAL, | |
426 | .fps_min = 5, | |
427 | .fps_max = 25, | |
428 | .framelines = 625, | |
429 | .width = VINO_PAL_WIDTH, | |
430 | .height = VINO_PAL_HEIGHT, | |
431 | .odd = { | |
a637a114 LM |
432 | .top = VINO_CLIPPING_START_ODD_PAL, |
433 | .left = 0, | |
d203a7ec RB |
434 | .bottom = VINO_CLIPPING_START_ODD_PAL |
435 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 436 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
437 | }, |
438 | .even = { | |
a637a114 LM |
439 | .top = VINO_CLIPPING_START_EVEN_PAL, |
440 | .left = 0, | |
d203a7ec RB |
441 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
442 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 443 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
444 | }, |
445 | },{ | |
446 | .description = "SECAM", | |
447 | .std = V4L2_STD_SECAM, | |
448 | .fps_min = 5, | |
449 | .fps_max = 25, | |
450 | .framelines = 625, | |
451 | .width = VINO_PAL_WIDTH, | |
452 | .height = VINO_PAL_HEIGHT, | |
453 | .odd = { | |
a637a114 LM |
454 | .top = VINO_CLIPPING_START_ODD_PAL, |
455 | .left = 0, | |
d203a7ec RB |
456 | .bottom = VINO_CLIPPING_START_ODD_PAL |
457 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 458 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
459 | }, |
460 | .even = { | |
a637a114 LM |
461 | .top = VINO_CLIPPING_START_EVEN_PAL, |
462 | .left = 0, | |
d203a7ec RB |
463 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
464 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 465 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
466 | }, |
467 | },{ | |
a637a114 | 468 | .description = "NTSC/D1", |
d203a7ec RB |
469 | .std = V4L2_STD_NTSC, |
470 | .fps_min = 6, | |
471 | .fps_max = 30, | |
472 | .framelines = 525, | |
473 | .width = VINO_NTSC_WIDTH, | |
474 | .height = VINO_NTSC_HEIGHT, | |
475 | .odd = { | |
a637a114 LM |
476 | .top = VINO_CLIPPING_START_ODD_D1, |
477 | .left = 0, | |
d203a7ec RB |
478 | .bottom = VINO_CLIPPING_START_ODD_D1 |
479 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 480 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
481 | }, |
482 | .even = { | |
a637a114 LM |
483 | .top = VINO_CLIPPING_START_EVEN_D1, |
484 | .left = 0, | |
d203a7ec RB |
485 | .bottom = VINO_CLIPPING_START_EVEN_D1 |
486 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 487 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
488 | }, |
489 | } | |
490 | }; | |
491 | ||
492 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 | |
493 | ||
494 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { | |
495 | { | |
496 | .id = V4L2_CID_AUTOGAIN, | |
497 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
498 | .name = "Automatic Gain Control", | |
499 | .minimum = 0, | |
500 | .maximum = 1, | |
501 | .step = 1, | |
502 | .default_value = INDYCAM_AGC_DEFAULT, | |
503 | .flags = 0, | |
a637a114 | 504 | .reserved = { INDYCAM_CONTROL_AGC, 0 }, |
d203a7ec RB |
505 | },{ |
506 | .id = V4L2_CID_AUTO_WHITE_BALANCE, | |
507 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
508 | .name = "Automatic White Balance", | |
509 | .minimum = 0, | |
510 | .maximum = 1, | |
511 | .step = 1, | |
512 | .default_value = INDYCAM_AWB_DEFAULT, | |
513 | .flags = 0, | |
a637a114 | 514 | .reserved = { INDYCAM_CONTROL_AWB, 0 }, |
d203a7ec RB |
515 | },{ |
516 | .id = V4L2_CID_GAIN, | |
517 | .type = V4L2_CTRL_TYPE_INTEGER, | |
518 | .name = "Gain", | |
519 | .minimum = INDYCAM_GAIN_MIN, | |
520 | .maximum = INDYCAM_GAIN_MAX, | |
521 | .step = 1, | |
522 | .default_value = INDYCAM_GAIN_DEFAULT, | |
523 | .flags = 0, | |
a637a114 | 524 | .reserved = { INDYCAM_CONTROL_GAIN, 0 }, |
d203a7ec RB |
525 | },{ |
526 | .id = V4L2_CID_PRIVATE_BASE, | |
527 | .type = V4L2_CTRL_TYPE_INTEGER, | |
528 | .name = "Red Saturation", | |
529 | .minimum = INDYCAM_RED_SATURATION_MIN, | |
530 | .maximum = INDYCAM_RED_SATURATION_MAX, | |
531 | .step = 1, | |
532 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, | |
533 | .flags = 0, | |
a637a114 | 534 | .reserved = { INDYCAM_CONTROL_RED_SATURATION, 0 }, |
d203a7ec RB |
535 | },{ |
536 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
537 | .type = V4L2_CTRL_TYPE_INTEGER, | |
538 | .name = "Blue Saturation", | |
539 | .minimum = INDYCAM_BLUE_SATURATION_MIN, | |
540 | .maximum = INDYCAM_BLUE_SATURATION_MAX, | |
541 | .step = 1, | |
542 | .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, | |
543 | .flags = 0, | |
a637a114 | 544 | .reserved = { INDYCAM_CONTROL_BLUE_SATURATION, 0 }, |
d203a7ec RB |
545 | },{ |
546 | .id = V4L2_CID_RED_BALANCE, | |
547 | .type = V4L2_CTRL_TYPE_INTEGER, | |
548 | .name = "Red Balance", | |
549 | .minimum = INDYCAM_RED_BALANCE_MIN, | |
550 | .maximum = INDYCAM_RED_BALANCE_MAX, | |
551 | .step = 1, | |
552 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, | |
553 | .flags = 0, | |
a637a114 | 554 | .reserved = { INDYCAM_CONTROL_RED_BALANCE, 0 }, |
d203a7ec RB |
555 | },{ |
556 | .id = V4L2_CID_BLUE_BALANCE, | |
557 | .type = V4L2_CTRL_TYPE_INTEGER, | |
558 | .name = "Blue Balance", | |
559 | .minimum = INDYCAM_BLUE_BALANCE_MIN, | |
560 | .maximum = INDYCAM_BLUE_BALANCE_MAX, | |
561 | .step = 1, | |
562 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, | |
563 | .flags = 0, | |
a637a114 | 564 | .reserved = { INDYCAM_CONTROL_BLUE_BALANCE, 0 }, |
d203a7ec RB |
565 | },{ |
566 | .id = V4L2_CID_EXPOSURE, | |
567 | .type = V4L2_CTRL_TYPE_INTEGER, | |
568 | .name = "Shutter Control", | |
569 | .minimum = INDYCAM_SHUTTER_MIN, | |
570 | .maximum = INDYCAM_SHUTTER_MAX, | |
571 | .step = 1, | |
572 | .default_value = INDYCAM_SHUTTER_DEFAULT, | |
573 | .flags = 0, | |
a637a114 | 574 | .reserved = { INDYCAM_CONTROL_SHUTTER, 0 }, |
d203a7ec RB |
575 | },{ |
576 | .id = V4L2_CID_GAMMA, | |
577 | .type = V4L2_CTRL_TYPE_INTEGER, | |
578 | .name = "Gamma", | |
579 | .minimum = INDYCAM_GAMMA_MIN, | |
580 | .maximum = INDYCAM_GAMMA_MAX, | |
581 | .step = 1, | |
582 | .default_value = INDYCAM_GAMMA_DEFAULT, | |
583 | .flags = 0, | |
a637a114 | 584 | .reserved = { INDYCAM_CONTROL_GAMMA, 0 }, |
d203a7ec RB |
585 | } |
586 | }; | |
587 | ||
a637a114 | 588 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 9 |
d203a7ec RB |
589 | |
590 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { | |
591 | { | |
592 | .id = V4L2_CID_HUE, | |
593 | .type = V4L2_CTRL_TYPE_INTEGER, | |
594 | .name = "Hue", | |
595 | .minimum = SAA7191_HUE_MIN, | |
596 | .maximum = SAA7191_HUE_MAX, | |
597 | .step = 1, | |
598 | .default_value = SAA7191_HUE_DEFAULT, | |
599 | .flags = 0, | |
a637a114 | 600 | .reserved = { SAA7191_CONTROL_HUE, 0 }, |
d203a7ec RB |
601 | },{ |
602 | .id = V4L2_CID_PRIVATE_BASE, | |
a637a114 LM |
603 | .type = V4L2_CTRL_TYPE_INTEGER, |
604 | .name = "Luminance Bandpass", | |
605 | .minimum = SAA7191_BANDPASS_MIN, | |
606 | .maximum = SAA7191_BANDPASS_MAX, | |
607 | .step = 1, | |
608 | .default_value = SAA7191_BANDPASS_DEFAULT, | |
609 | .flags = 0, | |
610 | .reserved = { SAA7191_CONTROL_BANDPASS, 0 }, | |
611 | },{ | |
612 | .id = V4L2_CID_PRIVATE_BASE + 1, | |
613 | .type = V4L2_CTRL_TYPE_INTEGER, | |
614 | .name = "Luminance Bandpass Weight", | |
615 | .minimum = SAA7191_BANDPASS_WEIGHT_MIN, | |
616 | .maximum = SAA7191_BANDPASS_WEIGHT_MAX, | |
617 | .step = 1, | |
618 | .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, | |
619 | .flags = 0, | |
620 | .reserved = { SAA7191_CONTROL_BANDPASS_WEIGHT, 0 }, | |
621 | },{ | |
622 | .id = V4L2_CID_PRIVATE_BASE + 2, | |
623 | .type = V4L2_CTRL_TYPE_INTEGER, | |
624 | .name = "HF Luminance Coring", | |
625 | .minimum = SAA7191_CORING_MIN, | |
626 | .maximum = SAA7191_CORING_MAX, | |
627 | .step = 1, | |
628 | .default_value = SAA7191_CORING_DEFAULT, | |
629 | .flags = 0, | |
630 | .reserved = { SAA7191_CONTROL_CORING, 0 }, | |
631 | },{ | |
632 | .id = V4L2_CID_PRIVATE_BASE + 3, | |
633 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
634 | .name = "Force Colour", | |
635 | .minimum = SAA7191_FORCE_COLOUR_MIN, | |
636 | .maximum = SAA7191_FORCE_COLOUR_MAX, | |
637 | .step = 1, | |
638 | .default_value = SAA7191_FORCE_COLOUR_DEFAULT, | |
639 | .flags = 0, | |
640 | .reserved = { SAA7191_CONTROL_FORCE_COLOUR, 0 }, | |
641 | },{ | |
642 | .id = V4L2_CID_PRIVATE_BASE + 4, | |
643 | .type = V4L2_CTRL_TYPE_INTEGER, | |
644 | .name = "Chrominance Gain Control", | |
645 | .minimum = SAA7191_CHROMA_GAIN_MIN, | |
646 | .maximum = SAA7191_CHROMA_GAIN_MAX, | |
647 | .step = 1, | |
648 | .default_value = SAA7191_CHROMA_GAIN_DEFAULT, | |
649 | .flags = 0, | |
650 | .reserved = { SAA7191_CONTROL_CHROMA_GAIN, 0 }, | |
651 | },{ | |
652 | .id = V4L2_CID_PRIVATE_BASE + 5, | |
d203a7ec RB |
653 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
654 | .name = "VTR Time Constant", | |
655 | .minimum = SAA7191_VTRC_MIN, | |
656 | .maximum = SAA7191_VTRC_MAX, | |
657 | .step = 1, | |
658 | .default_value = SAA7191_VTRC_DEFAULT, | |
659 | .flags = 0, | |
a637a114 LM |
660 | .reserved = { SAA7191_CONTROL_VTRC, 0 }, |
661 | },{ | |
662 | .id = V4L2_CID_PRIVATE_BASE + 6, | |
663 | .type = V4L2_CTRL_TYPE_INTEGER, | |
664 | .name = "Luminance Delay Compensation", | |
665 | .minimum = SAA7191_LUMA_DELAY_MIN, | |
666 | .maximum = SAA7191_LUMA_DELAY_MAX, | |
667 | .step = 1, | |
668 | .default_value = SAA7191_LUMA_DELAY_DEFAULT, | |
669 | .flags = 0, | |
670 | .reserved = { SAA7191_CONTROL_LUMA_DELAY, 0 }, | |
671 | },{ | |
672 | .id = V4L2_CID_PRIVATE_BASE + 7, | |
673 | .type = V4L2_CTRL_TYPE_INTEGER, | |
674 | .name = "Vertical Noise Reduction", | |
675 | .minimum = SAA7191_VNR_MIN, | |
676 | .maximum = SAA7191_VNR_MAX, | |
677 | .step = 1, | |
678 | .default_value = SAA7191_VNR_DEFAULT, | |
679 | .flags = 0, | |
680 | .reserved = { SAA7191_CONTROL_VNR, 0 }, | |
d203a7ec | 681 | } |
1da177e4 LT |
682 | }; |
683 | ||
d203a7ec | 684 | /* VINO I2C bus functions */ |
1da177e4 LT |
685 | |
686 | unsigned i2c_vino_getctrl(void *data) | |
687 | { | |
688 | return vino->i2c_control; | |
689 | } | |
690 | ||
691 | void i2c_vino_setctrl(void *data, unsigned val) | |
692 | { | |
693 | vino->i2c_control = val; | |
694 | } | |
695 | ||
696 | unsigned i2c_vino_rdata(void *data) | |
697 | { | |
698 | return vino->i2c_data; | |
699 | } | |
700 | ||
701 | void i2c_vino_wdata(void *data, unsigned val) | |
702 | { | |
703 | vino->i2c_data = val; | |
704 | } | |
705 | ||
706 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = | |
707 | { | |
708 | .getctrl = &i2c_vino_getctrl, | |
709 | .setctrl = &i2c_vino_setctrl, | |
710 | .rdata = &i2c_vino_rdata, | |
711 | .wdata = &i2c_vino_wdata, | |
712 | .xfer_timeout = 200, | |
713 | .ack_timeout = 1000, | |
714 | }; | |
715 | ||
716 | /* | |
717 | * There are two possible clients on VINO I2C bus, so we limit usage only | |
718 | * to them. | |
719 | */ | |
720 | static int i2c_vino_client_reg(struct i2c_client *client) | |
721 | { | |
a637a114 | 722 | unsigned long flags; |
d203a7ec | 723 | int ret = 0; |
1da177e4 | 724 | |
a637a114 | 725 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
1da177e4 LT |
726 | switch (client->driver->id) { |
727 | case I2C_DRIVERID_SAA7191: | |
d203a7ec RB |
728 | if (vino_drvdata->decoder.driver) |
729 | ret = -EBUSY; | |
1da177e4 | 730 | else |
d203a7ec | 731 | vino_drvdata->decoder.driver = client; |
1da177e4 LT |
732 | break; |
733 | case I2C_DRIVERID_INDYCAM: | |
d203a7ec RB |
734 | if (vino_drvdata->camera.driver) |
735 | ret = -EBUSY; | |
1da177e4 | 736 | else |
d203a7ec | 737 | vino_drvdata->camera.driver = client; |
1da177e4 LT |
738 | break; |
739 | default: | |
d203a7ec | 740 | ret = -ENODEV; |
1da177e4 | 741 | } |
a637a114 | 742 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 743 | |
d203a7ec | 744 | return ret; |
1da177e4 LT |
745 | } |
746 | ||
747 | static int i2c_vino_client_unreg(struct i2c_client *client) | |
748 | { | |
a637a114 | 749 | unsigned long flags; |
d203a7ec | 750 | int ret = 0; |
1da177e4 | 751 | |
a637a114 | 752 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
753 | if (client == vino_drvdata->decoder.driver) { |
754 | if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL) | |
755 | ret = -EBUSY; | |
1da177e4 | 756 | else |
d203a7ec RB |
757 | vino_drvdata->decoder.driver = NULL; |
758 | } else if (client == vino_drvdata->camera.driver) { | |
759 | if (vino_drvdata->camera.owner != VINO_NO_CHANNEL) | |
760 | ret = -EBUSY; | |
1da177e4 | 761 | else |
d203a7ec | 762 | vino_drvdata->camera.driver = NULL; |
1da177e4 | 763 | } |
a637a114 | 764 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
1da177e4 | 765 | |
d203a7ec | 766 | return ret; |
1da177e4 LT |
767 | } |
768 | ||
769 | static struct i2c_adapter vino_i2c_adapter = | |
770 | { | |
771 | .name = "VINO I2C bus", | |
772 | .id = I2C_HW_SGI_VINO, | |
773 | .algo_data = &i2c_sgi_vino_data, | |
774 | .client_register = &i2c_vino_client_reg, | |
775 | .client_unregister = &i2c_vino_client_unreg, | |
776 | }; | |
777 | ||
778 | static int vino_i2c_add_bus(void) | |
779 | { | |
780 | return i2c_sgi_add_bus(&vino_i2c_adapter); | |
781 | } | |
782 | ||
783 | static int vino_i2c_del_bus(void) | |
784 | { | |
3269711b | 785 | return i2c_del_adapter(&vino_i2c_adapter); |
1da177e4 LT |
786 | } |
787 | ||
d203a7ec RB |
788 | static int i2c_camera_command(unsigned int cmd, void *arg) |
789 | { | |
790 | return vino_drvdata->camera.driver-> | |
791 | driver->command(vino_drvdata->camera.driver, | |
792 | cmd, arg); | |
793 | } | |
1da177e4 | 794 | |
d203a7ec | 795 | static int i2c_decoder_command(unsigned int cmd, void *arg) |
1da177e4 | 796 | { |
d203a7ec RB |
797 | return vino_drvdata->decoder.driver-> |
798 | driver->command(vino_drvdata->decoder.driver, | |
799 | cmd, arg); | |
1da177e4 LT |
800 | } |
801 | ||
d203a7ec RB |
802 | /* VINO framebuffer/DMA descriptor management */ |
803 | ||
804 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, | |
805 | unsigned int count) | |
1da177e4 | 806 | { |
d203a7ec | 807 | unsigned int i; |
1da177e4 | 808 | |
d203a7ec RB |
809 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
810 | ||
811 | for (i = 0; i < count; i++) { | |
a637a114 | 812 | ClearPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec RB |
813 | dma_unmap_single(NULL, |
814 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
815 | PAGE_SIZE, DMA_FROM_DEVICE); | |
816 | free_page(fb->desc_table.virtual[i]); | |
817 | } | |
818 | ||
819 | dma_free_coherent(NULL, | |
820 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * | |
821 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, | |
822 | fb->desc_table.dma); | |
823 | kfree(fb->desc_table.virtual); | |
824 | ||
825 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
826 | } | |
827 | ||
828 | static void vino_free_buffer(struct vino_framebuffer *fb) | |
829 | { | |
830 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); | |
1da177e4 LT |
831 | } |
832 | ||
d203a7ec RB |
833 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
834 | unsigned int size) | |
1da177e4 | 835 | { |
d203a7ec RB |
836 | unsigned int count, i, j; |
837 | int ret = 0; | |
838 | ||
839 | dprintk("vino_allocate_buffer():\n"); | |
840 | ||
841 | if (size < 1) | |
842 | return -EINVAL; | |
843 | ||
844 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
845 | ||
846 | count = ((size / PAGE_SIZE) + 4) & ~3; | |
847 | ||
848 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", | |
849 | size, count); | |
850 | ||
851 | /* allocate memory for table with virtual (page) addresses */ | |
852 | fb->desc_table.virtual = (unsigned long *) | |
853 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
854 | if (!fb->desc_table.virtual) | |
855 | return -ENOMEM; | |
856 | ||
857 | /* allocate memory for table with dma addresses | |
858 | * (has space for four extra descriptors) */ | |
859 | fb->desc_table.dma_cpu = | |
860 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
861 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
862 | GFP_KERNEL | GFP_DMA); | |
863 | if (!fb->desc_table.dma_cpu) { | |
864 | ret = -ENOMEM; | |
865 | goto out_free_virtual; | |
866 | } | |
867 | ||
868 | /* allocate pages for the buffer and acquire the according | |
869 | * dma addresses */ | |
870 | for (i = 0; i < count; i++) { | |
871 | dma_addr_t dma_data_addr; | |
872 | ||
873 | fb->desc_table.virtual[i] = | |
874 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
875 | if (!fb->desc_table.virtual[i]) { | |
876 | ret = -ENOBUFS; | |
877 | break; | |
878 | } | |
879 | ||
880 | dma_data_addr = | |
881 | dma_map_single(NULL, | |
882 | (void *)fb->desc_table.virtual[i], | |
883 | PAGE_SIZE, DMA_FROM_DEVICE); | |
884 | ||
885 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
886 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
887 | dma_data_addr + VINO_PAGE_SIZE * j; | |
888 | } | |
889 | ||
a637a114 | 890 | SetPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec RB |
891 | } |
892 | ||
893 | /* page_count needs to be set anyway, because the descriptor table has | |
894 | * been allocated according to this number */ | |
895 | fb->desc_table.page_count = count; | |
896 | ||
897 | if (ret) { | |
898 | /* the descriptor with index i doesn't contain | |
899 | * a valid address yet */ | |
900 | vino_free_buffer_with_count(fb, i); | |
901 | return ret; | |
902 | } | |
903 | ||
904 | //fb->size = size; | |
905 | fb->size = count * PAGE_SIZE; | |
906 | fb->data_format = VINO_DATA_FMT_NONE; | |
907 | ||
908 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
909 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
910 | return 0; | |
911 | ||
912 | out_free_virtual: | |
913 | kfree(fb->desc_table.virtual); | |
914 | return ret; | |
1da177e4 LT |
915 | } |
916 | ||
d203a7ec RB |
917 | #if 0 |
918 | /* user buffers not fully implemented yet */ | |
919 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, | |
920 | void *user, | |
921 | unsigned int size) | |
1da177e4 | 922 | { |
d203a7ec RB |
923 | unsigned int count, i, j; |
924 | int ret = 0; | |
925 | ||
926 | dprintk("vino_prepare_user_buffer():\n"); | |
927 | ||
928 | if (size < 1) | |
929 | return -EINVAL; | |
930 | ||
931 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
932 | ||
933 | count = ((size / PAGE_SIZE)) & ~3; | |
934 | ||
935 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", | |
936 | size, count); | |
937 | ||
938 | /* allocate memory for table with virtual (page) addresses */ | |
939 | fb->desc_table.virtual = (unsigned long *) | |
940 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
941 | if (!fb->desc_table.virtual) | |
942 | return -ENOMEM; | |
943 | ||
944 | /* allocate memory for table with dma addresses | |
945 | * (has space for four extra descriptors) */ | |
946 | fb->desc_table.dma_cpu = | |
947 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
948 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
949 | GFP_KERNEL | GFP_DMA); | |
950 | if (!fb->desc_table.dma_cpu) { | |
951 | ret = -ENOMEM; | |
952 | goto out_free_virtual; | |
953 | } | |
954 | ||
955 | /* allocate pages for the buffer and acquire the according | |
956 | * dma addresses */ | |
957 | for (i = 0; i < count; i++) { | |
958 | dma_addr_t dma_data_addr; | |
959 | ||
960 | fb->desc_table.virtual[i] = | |
961 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
962 | if (!fb->desc_table.virtual[i]) { | |
963 | ret = -ENOBUFS; | |
964 | break; | |
965 | } | |
966 | ||
967 | dma_data_addr = | |
968 | dma_map_single(NULL, | |
969 | (void *)fb->desc_table.virtual[i], | |
970 | PAGE_SIZE, DMA_FROM_DEVICE); | |
971 | ||
972 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
973 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
974 | dma_data_addr + VINO_PAGE_SIZE * j; | |
975 | } | |
976 | ||
a637a114 | 977 | SetPageReserved(virt_to_page(fb->desc_table.virtual[i])); |
d203a7ec | 978 | } |
1da177e4 | 979 | |
d203a7ec RB |
980 | /* page_count needs to be set anyway, because the descriptor table has |
981 | * been allocated according to this number */ | |
982 | fb->desc_table.page_count = count; | |
983 | ||
984 | if (ret) { | |
985 | /* the descriptor with index i doesn't contain | |
986 | * a valid address yet */ | |
987 | vino_free_buffer_with_count(fb, i); | |
988 | return ret; | |
989 | } | |
990 | ||
991 | //fb->size = size; | |
992 | fb->size = count * PAGE_SIZE; | |
993 | ||
994 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
995 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
996 | return 0; | |
997 | ||
998 | out_free_virtual: | |
999 | kfree(fb->desc_table.virtual); | |
1000 | return ret; | |
1da177e4 | 1001 | } |
d203a7ec | 1002 | #endif |
1da177e4 | 1003 | |
d203a7ec | 1004 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
1da177e4 | 1005 | { |
d203a7ec RB |
1006 | int i; |
1007 | ||
1008 | dprintk("vino_sync_buffer():\n"); | |
1da177e4 | 1009 | |
d203a7ec RB |
1010 | for (i = 0; i < fb->desc_table.page_count; i++) |
1011 | dma_sync_single(NULL, | |
1012 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
1013 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1da177e4 LT |
1014 | } |
1015 | ||
d203a7ec | 1016 | /* Framebuffer fifo functions (need to be locked externally) */ |
1da177e4 | 1017 | |
a637a114 | 1018 | static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, |
d203a7ec | 1019 | unsigned int length) |
1da177e4 | 1020 | { |
d203a7ec RB |
1021 | f->length = 0; |
1022 | f->used = 0; | |
1023 | f->head = 0; | |
1024 | f->tail = 0; | |
1da177e4 | 1025 | |
a637a114 LM |
1026 | if (length > VINO_FRAMEBUFFER_COUNT_MAX) |
1027 | length = VINO_FRAMEBUFFER_COUNT_MAX; | |
1da177e4 | 1028 | |
d203a7ec RB |
1029 | f->length = length; |
1030 | } | |
1031 | ||
1032 | /* returns true/false */ | |
a637a114 LM |
1033 | static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, |
1034 | unsigned int id) | |
d203a7ec RB |
1035 | { |
1036 | unsigned int i; | |
a637a114 | 1037 | |
d203a7ec RB |
1038 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { |
1039 | if (f->data[i] == id) | |
1040 | return 1; | |
1da177e4 LT |
1041 | } |
1042 | ||
d203a7ec RB |
1043 | return 0; |
1044 | } | |
1da177e4 | 1045 | |
a637a114 | 1046 | #if 0 |
d203a7ec | 1047 | /* returns true/false */ |
a637a114 | 1048 | static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1049 | { |
1050 | return (f->used == f->length); | |
1051 | } | |
a637a114 | 1052 | #endif |
d203a7ec | 1053 | |
a637a114 | 1054 | static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
1055 | { |
1056 | return f->used; | |
1057 | } | |
1058 | ||
1059 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) | |
1060 | { | |
1061 | if (id >= f->length) { | |
1062 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1063 | } |
d203a7ec RB |
1064 | |
1065 | if (vino_fifo_has_id(f, id)) { | |
1066 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1067 | } |
1da177e4 | 1068 | |
d203a7ec RB |
1069 | if (f->used < f->length) { |
1070 | f->data[f->tail] = id; | |
1071 | f->tail = (f->tail + 1) % f->length; | |
1072 | f->used++; | |
1073 | } else { | |
1074 | return VINO_QUEUE_ERROR; | |
1da177e4 LT |
1075 | } |
1076 | ||
d203a7ec RB |
1077 | return 0; |
1078 | } | |
1079 | ||
1080 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1081 | { | |
1082 | if (f->used > 0) { | |
1083 | *id = f->data[f->head]; | |
1084 | } else { | |
1085 | return VINO_QUEUE_ERROR; | |
1da177e4 | 1086 | } |
1da177e4 | 1087 | |
d203a7ec RB |
1088 | return 0; |
1089 | } | |
1090 | ||
1091 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) | |
1092 | { | |
1093 | if (f->used > 0) { | |
1094 | *id = f->data[f->head]; | |
1095 | f->head = (f->head + 1) % f->length; | |
1096 | f->used--; | |
1097 | } else { | |
1098 | return VINO_QUEUE_ERROR; | |
1099 | } | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1da177e4 | 1103 | |
d203a7ec | 1104 | /* Framebuffer queue functions */ |
1da177e4 | 1105 | |
d203a7ec RB |
1106 | /* execute with queue_lock locked */ |
1107 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, | |
1108 | unsigned int length) | |
1109 | { | |
1110 | unsigned int i; | |
1111 | ||
1112 | q->length = 0; | |
1113 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); | |
1114 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); | |
1115 | for (i = 0; i < length; i++) { | |
1116 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", | |
1117 | i); | |
1118 | vino_free_buffer(q->buffer[i]); | |
1119 | kfree(q->buffer[i]); | |
1da177e4 LT |
1120 | } |
1121 | ||
d203a7ec RB |
1122 | q->type = VINO_MEMORY_NONE; |
1123 | q->magic = 0; | |
1124 | } | |
1125 | ||
1126 | static void vino_queue_free(struct vino_framebuffer_queue *q) | |
1127 | { | |
1128 | dprintk("vino_queue_free():\n"); | |
1129 | ||
1130 | if (q->magic != VINO_QUEUE_MAGIC) | |
1131 | return; | |
1132 | if (q->type != VINO_MEMORY_MMAP) | |
1133 | return; | |
1134 | ||
3593cab5 | 1135 | mutex_lock(&q->queue_mutex); |
d203a7ec RB |
1136 | |
1137 | vino_queue_free_with_count(q, q->length); | |
1138 | ||
3593cab5 | 1139 | mutex_unlock(&q->queue_mutex); |
d203a7ec RB |
1140 | } |
1141 | ||
1142 | static int vino_queue_init(struct vino_framebuffer_queue *q, | |
1143 | unsigned int *length) | |
1144 | { | |
1145 | unsigned int i; | |
1146 | int ret = 0; | |
1147 | ||
1148 | dprintk("vino_queue_init(): length = %d\n", *length); | |
1149 | ||
1150 | if (q->magic == VINO_QUEUE_MAGIC) { | |
1151 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1152 | return -EINVAL; | |
1da177e4 LT |
1153 | } |
1154 | ||
d203a7ec RB |
1155 | if (q->type != VINO_MEMORY_NONE) { |
1156 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1157 | return -EINVAL; | |
1da177e4 | 1158 | } |
d203a7ec RB |
1159 | |
1160 | if (*length < 1) | |
1161 | return -EINVAL; | |
1162 | ||
3593cab5 | 1163 | mutex_lock(&q->queue_mutex); |
d203a7ec | 1164 | |
a637a114 LM |
1165 | if (*length > VINO_FRAMEBUFFER_COUNT_MAX) |
1166 | *length = VINO_FRAMEBUFFER_COUNT_MAX; | |
d203a7ec RB |
1167 | |
1168 | q->length = 0; | |
1169 | ||
1170 | for (i = 0; i < *length; i++) { | |
1171 | dprintk("vino_queue_init(): allocating buffer %d\n", i); | |
1172 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), | |
1173 | GFP_KERNEL); | |
1174 | if (!q->buffer[i]) { | |
1175 | dprintk("vino_queue_init(): kmalloc() failed\n"); | |
1176 | ret = -ENOMEM; | |
1177 | break; | |
1178 | } | |
1179 | ||
1180 | ret = vino_allocate_buffer(q->buffer[i], | |
1181 | VINO_FRAMEBUFFER_SIZE); | |
1182 | if (ret) { | |
1183 | kfree(q->buffer[i]); | |
1184 | dprintk("vino_queue_init(): " | |
1185 | "vino_allocate_buffer() failed\n"); | |
1186 | break; | |
1187 | } | |
1188 | ||
1189 | q->buffer[i]->id = i; | |
1190 | if (i > 0) { | |
1191 | q->buffer[i]->offset = q->buffer[i - 1]->offset + | |
1192 | q->buffer[i - 1]->size; | |
1193 | } else { | |
1194 | q->buffer[i]->offset = 0; | |
1195 | } | |
1196 | ||
1197 | spin_lock_init(&q->buffer[i]->state_lock); | |
1198 | ||
1199 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " | |
1200 | "size = %d\n", i, q->buffer[i]->offset, | |
1201 | q->buffer[i]->size); | |
1da177e4 LT |
1202 | } |
1203 | ||
d203a7ec RB |
1204 | if (ret) { |
1205 | vino_queue_free_with_count(q, i); | |
1206 | *length = 0; | |
1207 | } else { | |
1208 | q->length = *length; | |
1209 | vino_fifo_init(&q->in, q->length); | |
1210 | vino_fifo_init(&q->out, q->length); | |
1211 | q->type = VINO_MEMORY_MMAP; | |
1212 | q->magic = VINO_QUEUE_MAGIC; | |
1213 | } | |
1da177e4 | 1214 | |
3593cab5 | 1215 | mutex_unlock(&q->queue_mutex); |
1da177e4 LT |
1216 | |
1217 | return ret; | |
1218 | } | |
1219 | ||
d203a7ec RB |
1220 | static struct vino_framebuffer *vino_queue_add(struct |
1221 | vino_framebuffer_queue *q, | |
1222 | unsigned int id) | |
1da177e4 | 1223 | { |
d203a7ec RB |
1224 | struct vino_framebuffer *ret = NULL; |
1225 | unsigned int total; | |
1226 | unsigned long flags; | |
1227 | ||
1228 | dprintk("vino_queue_add(): id = %d\n", id); | |
1229 | ||
1230 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1231 | return ret; | |
1232 | } | |
1233 | ||
1234 | spin_lock_irqsave(&q->queue_lock, flags); | |
1235 | ||
1236 | if (q->length == 0) | |
1237 | goto out; | |
1238 | ||
1239 | if (id >= q->length) | |
1240 | goto out; | |
1241 | ||
1242 | /* not needed?: if (vino_fifo_full(&q->out)) { | |
1243 | goto out; | |
1244 | }*/ | |
1245 | /* check that outgoing queue isn't already full | |
1246 | * (or that it won't become full) */ | |
1247 | total = vino_fifo_get_used(&q->in) + | |
1248 | vino_fifo_get_used(&q->out); | |
1249 | if (total >= q->length) | |
1250 | goto out; | |
1251 | ||
1252 | if (vino_fifo_enqueue(&q->in, id)) | |
1253 | goto out; | |
1254 | ||
1255 | ret = q->buffer[id]; | |
1256 | ||
1257 | out: | |
1258 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1259 | ||
1260 | return ret; | |
1da177e4 LT |
1261 | } |
1262 | ||
d203a7ec RB |
1263 | static struct vino_framebuffer *vino_queue_transfer(struct |
1264 | vino_framebuffer_queue *q) | |
1265 | { | |
1266 | struct vino_framebuffer *ret = NULL; | |
1267 | struct vino_framebuffer *fb; | |
1268 | int id; | |
1269 | unsigned long flags; | |
1da177e4 | 1270 | |
d203a7ec RB |
1271 | dprintk("vino_queue_transfer():\n"); |
1272 | ||
1273 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1274 | return ret; | |
1275 | } | |
1276 | ||
1277 | spin_lock_irqsave(&q->queue_lock, flags); | |
1278 | ||
1279 | if (q->length == 0) | |
1280 | goto out; | |
1281 | ||
1282 | // now this actually removes an entry from the incoming queue | |
1283 | if (vino_fifo_dequeue(&q->in, &id)) { | |
1284 | goto out; | |
1285 | } | |
1286 | ||
1287 | dprintk("vino_queue_transfer(): id = %d\n", id); | |
1288 | fb = q->buffer[id]; | |
1289 | ||
1290 | // we have already checked that the outgoing queue is not full, but... | |
1291 | if (vino_fifo_enqueue(&q->out, id)) { | |
1292 | printk(KERN_ERR "vino_queue_transfer(): " | |
1293 | "outgoing queue is full, this shouldn't happen!\n"); | |
1294 | goto out; | |
1295 | } | |
1296 | ||
1297 | ret = fb; | |
1298 | out: | |
1299 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1300 | ||
1301 | return ret; | |
1302 | } | |
1303 | ||
1304 | /* returns true/false */ | |
1305 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, | |
1306 | unsigned int id) | |
1307 | { | |
1308 | int ret = 0; | |
1309 | unsigned long flags; | |
1310 | ||
1311 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1312 | return ret; | |
1313 | } | |
1314 | ||
1315 | spin_lock_irqsave(&q->queue_lock, flags); | |
1316 | ||
1317 | if (q->length == 0) | |
1318 | goto out; | |
1319 | ||
1320 | ret = vino_fifo_has_id(&q->in, id); | |
1321 | ||
1322 | out: | |
1323 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1324 | ||
1325 | return ret; | |
1326 | } | |
1327 | ||
1328 | /* returns true/false */ | |
1329 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, | |
1330 | unsigned int id) | |
1331 | { | |
1332 | int ret = 0; | |
1333 | unsigned long flags; | |
1334 | ||
1335 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1336 | return ret; | |
1337 | } | |
1338 | ||
1339 | spin_lock_irqsave(&q->queue_lock, flags); | |
1340 | ||
1341 | if (q->length == 0) | |
1342 | goto out; | |
1343 | ||
1344 | ret = vino_fifo_has_id(&q->out, id); | |
1345 | ||
1346 | out: | |
1347 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1348 | ||
1349 | return ret; | |
1350 | } | |
1351 | ||
1352 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, | |
1353 | unsigned int *used) | |
1354 | { | |
1355 | int ret = 0; | |
1356 | unsigned long flags; | |
1357 | ||
1358 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1359 | return VINO_QUEUE_ERROR; | |
1360 | } | |
1361 | ||
1362 | spin_lock_irqsave(&q->queue_lock, flags); | |
1363 | ||
1364 | if (q->length == 0) { | |
1365 | ret = VINO_QUEUE_ERROR; | |
1366 | goto out; | |
1367 | } | |
1368 | ||
1369 | *used = vino_fifo_get_used(&q->in); | |
1370 | ||
1371 | out: | |
1372 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1373 | ||
1374 | return ret; | |
1375 | } | |
1376 | ||
1377 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, | |
1378 | unsigned int *used) | |
1379 | { | |
1380 | int ret = 0; | |
1381 | unsigned long flags; | |
1382 | ||
1383 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1384 | return VINO_QUEUE_ERROR; | |
1385 | } | |
1386 | ||
1387 | spin_lock_irqsave(&q->queue_lock, flags); | |
1388 | ||
1389 | if (q->length == 0) { | |
1390 | ret = VINO_QUEUE_ERROR; | |
1391 | goto out; | |
1392 | } | |
1393 | ||
1394 | *used = vino_fifo_get_used(&q->out); | |
1395 | ||
1396 | out: | |
1397 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1398 | ||
1399 | return ret; | |
1400 | } | |
1401 | ||
a637a114 | 1402 | #if 0 |
d203a7ec RB |
1403 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, |
1404 | unsigned int *total) | |
1405 | { | |
1406 | int ret = 0; | |
1407 | unsigned long flags; | |
1408 | ||
1409 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1410 | return VINO_QUEUE_ERROR; | |
1411 | } | |
1412 | ||
1413 | spin_lock_irqsave(&q->queue_lock, flags); | |
1414 | ||
1415 | if (q->length == 0) { | |
1416 | ret = VINO_QUEUE_ERROR; | |
1417 | goto out; | |
1418 | } | |
1419 | ||
1420 | *total = vino_fifo_get_used(&q->in) + | |
1421 | vino_fifo_get_used(&q->out); | |
1422 | ||
1423 | out: | |
1424 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1425 | ||
1426 | return ret; | |
1427 | } | |
a637a114 | 1428 | #endif |
d203a7ec RB |
1429 | |
1430 | static struct vino_framebuffer *vino_queue_peek(struct | |
1431 | vino_framebuffer_queue *q, | |
1432 | unsigned int *id) | |
1433 | { | |
1434 | struct vino_framebuffer *ret = NULL; | |
1435 | unsigned long flags; | |
1436 | ||
1437 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1438 | return ret; | |
1439 | } | |
1440 | ||
1441 | spin_lock_irqsave(&q->queue_lock, flags); | |
1442 | ||
1443 | if (q->length == 0) | |
1444 | goto out; | |
1445 | ||
1446 | if (vino_fifo_peek(&q->in, id)) { | |
1447 | goto out; | |
1448 | } | |
1449 | ||
1450 | ret = q->buffer[*id]; | |
1451 | out: | |
1452 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1453 | ||
1454 | return ret; | |
1455 | } | |
1456 | ||
1457 | static struct vino_framebuffer *vino_queue_remove(struct | |
1458 | vino_framebuffer_queue *q, | |
1459 | unsigned int *id) | |
1460 | { | |
1461 | struct vino_framebuffer *ret = NULL; | |
1462 | unsigned long flags; | |
1463 | dprintk("vino_queue_remove():\n"); | |
1464 | ||
1465 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1466 | return ret; | |
1467 | } | |
1468 | ||
1469 | spin_lock_irqsave(&q->queue_lock, flags); | |
1470 | ||
1471 | if (q->length == 0) | |
1472 | goto out; | |
1473 | ||
1474 | if (vino_fifo_dequeue(&q->out, id)) { | |
1475 | goto out; | |
1476 | } | |
1477 | ||
1478 | dprintk("vino_queue_remove(): id = %d\n", *id); | |
1479 | ret = q->buffer[*id]; | |
1480 | out: | |
1481 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1482 | ||
1483 | return ret; | |
1484 | } | |
1485 | ||
1486 | static struct | |
1487 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, | |
1488 | unsigned int id) | |
1489 | { | |
1490 | struct vino_framebuffer *ret = NULL; | |
1491 | unsigned long flags; | |
1492 | ||
1493 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1494 | return ret; | |
1495 | } | |
1496 | ||
1497 | spin_lock_irqsave(&q->queue_lock, flags); | |
1498 | ||
1499 | if (q->length == 0) | |
1500 | goto out; | |
1501 | ||
1502 | if (id >= q->length) | |
1503 | goto out; | |
1504 | ||
1505 | ret = q->buffer[id]; | |
1506 | out: | |
1507 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1508 | ||
1509 | return ret; | |
1510 | } | |
1511 | ||
1512 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) | |
1513 | { | |
1514 | unsigned int length = 0; | |
1515 | unsigned long flags; | |
1516 | ||
1517 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1518 | return length; | |
1519 | } | |
1520 | ||
1521 | spin_lock_irqsave(&q->queue_lock, flags); | |
1522 | length = q->length; | |
1523 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1524 | ||
1525 | return length; | |
1526 | } | |
1527 | ||
1528 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) | |
1529 | { | |
1530 | unsigned int i; | |
1531 | int ret = 0; | |
1532 | unsigned long flags; | |
1533 | ||
1534 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1535 | return ret; | |
1536 | } | |
1537 | ||
1538 | spin_lock_irqsave(&q->queue_lock, flags); | |
1539 | for (i = 0; i < q->length; i++) { | |
1540 | if (q->buffer[i]->map_count > 0) { | |
1541 | ret = 1; | |
1542 | break; | |
1543 | } | |
1544 | } | |
1545 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1546 | ||
1547 | return ret; | |
1548 | } | |
1549 | ||
1550 | /* VINO functions */ | |
1551 | ||
1552 | /* execute with input_lock locked */ | |
1553 | static void vino_update_line_size(struct vino_channel_settings *vcs) | |
1554 | { | |
1555 | unsigned int w = vcs->clipping.right - vcs->clipping.left; | |
1556 | unsigned int d = vcs->decimation; | |
1557 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; | |
d56410e0 | 1558 | unsigned int lsize; |
d203a7ec RB |
1559 | |
1560 | dprintk("update_line_size(): before: w = %d, d = %d, " | |
1561 | "line_size = %d\n", w, d, vcs->line_size); | |
a637a114 | 1562 | |
d56410e0 | 1563 | /* line size must be multiple of 8 bytes */ |
d203a7ec RB |
1564 | lsize = (bpp * (w / d)) & ~7; |
1565 | w = (lsize / bpp) * d; | |
1566 | ||
1567 | vcs->clipping.right = vcs->clipping.left + w; | |
1568 | vcs->line_size = lsize; | |
a637a114 | 1569 | |
d203a7ec RB |
1570 | dprintk("update_line_size(): after: w = %d, d = %d, " |
1571 | "line_size = %d\n", w, d, vcs->line_size); | |
1572 | } | |
1573 | ||
1574 | /* execute with input_lock locked */ | |
1575 | static void vino_set_clipping(struct vino_channel_settings *vcs, | |
1576 | unsigned int x, unsigned int y, | |
1577 | unsigned int w, unsigned int h) | |
1578 | { | |
1579 | unsigned int maxwidth, maxheight; | |
1580 | unsigned int d; | |
1581 | ||
1582 | maxwidth = vino_data_norms[vcs->data_norm].width; | |
1583 | maxheight = vino_data_norms[vcs->data_norm].height; | |
1584 | d = vcs->decimation; | |
1585 | ||
1586 | y &= ~1; /* odd/even fields */ | |
1587 | ||
1588 | if (x > maxwidth) { | |
1589 | x = 0; | |
1590 | } | |
1591 | if (y > maxheight) { | |
1592 | y = 0; | |
1593 | } | |
1594 | ||
1595 | if (((w / d) < VINO_MIN_WIDTH) | |
1596 | || ((h / d) < VINO_MIN_HEIGHT)) { | |
1597 | w = VINO_MIN_WIDTH * d; | |
1598 | h = VINO_MIN_HEIGHT * d; | |
1599 | } | |
1600 | ||
1601 | if ((x + w) > maxwidth) { | |
1602 | w = maxwidth - x; | |
1603 | if ((w / d) < VINO_MIN_WIDTH) | |
1604 | x = maxwidth - VINO_MIN_WIDTH * d; | |
1605 | } | |
1606 | if ((y + h) > maxheight) { | |
1607 | h = maxheight - y; | |
1608 | if ((h / d) < VINO_MIN_HEIGHT) | |
1609 | y = maxheight - VINO_MIN_HEIGHT * d; | |
1610 | } | |
1611 | ||
1612 | vcs->clipping.left = x; | |
1613 | vcs->clipping.top = y; | |
1614 | vcs->clipping.right = x + w; | |
1615 | vcs->clipping.bottom = y + h; | |
1616 | ||
1617 | vino_update_line_size(vcs); | |
1618 | ||
1619 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", | |
1620 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, | |
1621 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); | |
1622 | } | |
1623 | ||
1624 | /* execute with input_lock locked */ | |
a637a114 | 1625 | static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) |
d203a7ec RB |
1626 | { |
1627 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, | |
1628 | vino_data_norms[vcs->data_norm].height); | |
1629 | } | |
1630 | ||
1631 | /* execute with input_lock locked */ | |
1632 | static void vino_set_scaling(struct vino_channel_settings *vcs, | |
1633 | unsigned int w, unsigned int h) | |
1634 | { | |
1635 | unsigned int x, y, curw, curh, d; | |
1636 | ||
1637 | x = vcs->clipping.left; | |
1638 | y = vcs->clipping.top; | |
1639 | curw = vcs->clipping.right - vcs->clipping.left; | |
1640 | curh = vcs->clipping.bottom - vcs->clipping.top; | |
1641 | ||
1642 | d = max(curw / w, curh / h); | |
1643 | ||
1644 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", | |
1645 | w, h, curw, curh, d); | |
1646 | ||
1647 | if (d < 1) { | |
1648 | d = 1; | |
a637a114 | 1649 | } else if (d > 8) { |
d203a7ec RB |
1650 | d = 8; |
1651 | } | |
1652 | ||
1653 | vcs->decimation = d; | |
1654 | vino_set_clipping(vcs, x, y, w * d, h * d); | |
1655 | ||
1656 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, | |
1657 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, | |
1658 | vcs->decimation, vcs->line_size); | |
1659 | } | |
1660 | ||
1661 | /* execute with input_lock locked */ | |
a637a114 | 1662 | static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) |
d203a7ec RB |
1663 | { |
1664 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, | |
1665 | vcs->clipping.bottom - vcs->clipping.top); | |
1666 | } | |
1667 | ||
1668 | /* execute with input_lock locked */ | |
1669 | static void vino_set_framerate(struct vino_channel_settings *vcs, | |
1670 | unsigned int fps) | |
1671 | { | |
1672 | unsigned int mask; | |
1673 | ||
1674 | switch (vcs->data_norm) { | |
1675 | case VINO_DATA_NORM_NTSC: | |
1676 | case VINO_DATA_NORM_D1: | |
1677 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! | |
1678 | ||
1679 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1680 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1681 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1682 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1683 | ||
1684 | switch (fps) { | |
1685 | case 6: | |
1686 | mask = 0x003; | |
1687 | break; | |
1688 | case 12: | |
1689 | mask = 0x0c3; | |
1690 | break; | |
1691 | case 18: | |
1692 | mask = 0x333; | |
1693 | break; | |
1694 | case 24: | |
1695 | mask = 0x3ff; | |
1696 | break; | |
1697 | case 30: | |
1698 | mask = 0xfff; | |
1699 | break; | |
1700 | default: | |
1701 | mask = VINO_FRAMERT_FULL; | |
1702 | } | |
1703 | vcs->framert_reg = VINO_FRAMERT_RT(mask); | |
1704 | break; | |
1705 | case VINO_DATA_NORM_PAL: | |
1706 | case VINO_DATA_NORM_SECAM: | |
1707 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! | |
1708 | ||
1709 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1710 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1711 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1712 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1713 | ||
1714 | switch (fps) { | |
1715 | case 5: | |
1716 | mask = 0x003; | |
1717 | break; | |
1718 | case 10: | |
1719 | mask = 0x0c3; | |
1720 | break; | |
1721 | case 15: | |
1722 | mask = 0x333; | |
1723 | break; | |
1724 | case 20: | |
1725 | mask = 0x0ff; | |
1726 | break; | |
1727 | case 25: | |
1728 | mask = 0x3ff; | |
1729 | break; | |
1730 | default: | |
1731 | mask = VINO_FRAMERT_FULL; | |
1732 | } | |
1733 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; | |
1734 | break; | |
1735 | } | |
1736 | ||
1737 | vcs->fps = fps; | |
1738 | } | |
1739 | ||
1740 | /* execute with input_lock locked */ | |
a637a114 LM |
1741 | static inline void vino_set_default_framerate(struct |
1742 | vino_channel_settings *vcs) | |
d203a7ec RB |
1743 | { |
1744 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); | |
1745 | } | |
1746 | ||
1747 | /* | |
1748 | * Prepare VINO for DMA transfer... | |
1749 | * (execute only with vino_lock and input_lock locked) | |
1750 | */ | |
1751 | static int vino_dma_setup(struct vino_channel_settings *vcs, | |
1752 | struct vino_framebuffer *fb) | |
1753 | { | |
1754 | u32 ctrl, intr; | |
1755 | struct sgi_vino_channel *ch; | |
1756 | const struct vino_data_norm *norm; | |
1757 | ||
1758 | dprintk("vino_dma_setup():\n"); | |
1759 | ||
1760 | vcs->field = 0; | |
1761 | fb->frame_counter = 0; | |
1762 | ||
1763 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1764 | norm = &vino_data_norms[vcs->data_norm]; | |
1765 | ||
1766 | ch->page_index = 0; | |
1767 | ch->line_count = 0; | |
1768 | ||
1769 | /* VINO line size register is set 8 bytes less than actual */ | |
1770 | ch->line_size = vcs->line_size - 8; | |
1771 | ||
1772 | /* let VINO know where to transfer data */ | |
1773 | ch->start_desc_tbl = fb->desc_table.dma; | |
1774 | ch->next_4_desc = fb->desc_table.dma; | |
1775 | ||
1776 | /* give vino time to fetch the first four descriptors, 5 usec | |
1777 | * should be more than enough time */ | |
1778 | udelay(VINO_DESC_FETCH_DELAY); | |
1779 | ||
a637a114 LM |
1780 | dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", |
1781 | ch->start_desc_tbl, ch->next_4_desc); | |
1782 | ||
d203a7ec RB |
1783 | /* set the alpha register */ |
1784 | ch->alpha = vcs->alpha; | |
1785 | ||
1786 | /* set clipping registers */ | |
1787 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | | |
1788 | VINO_CLIP_EVEN(norm->even.top + | |
1789 | vcs->clipping.top / 2) | | |
1790 | VINO_CLIP_X(vcs->clipping.left); | |
1791 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + | |
1792 | vcs->clipping.bottom / 2 - 1) | | |
1793 | VINO_CLIP_EVEN(norm->even.top + | |
1794 | vcs->clipping.bottom / 2 - 1) | | |
1795 | VINO_CLIP_X(vcs->clipping.right); | |
d203a7ec RB |
1796 | |
1797 | /* set the size of actual content in the buffer (DECIMATION !) */ | |
1798 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / | |
1799 | vcs->decimation) * | |
1800 | ((vcs->clipping.bottom - vcs->clipping.top) / | |
1801 | vcs->decimation) * | |
1802 | vino_data_formats[vcs->data_format].bpp; | |
1803 | ||
1804 | ch->frame_rate = vcs->framert_reg; | |
1805 | ||
1806 | ctrl = vino->control; | |
1807 | intr = vino->intr_status; | |
1808 | ||
1809 | if (vcs->channel == VINO_CHANNEL_A) { | |
1810 | /* All interrupt conditions for this channel was cleared | |
1811 | * so clear the interrupt status register and enable | |
1812 | * interrupts */ | |
1813 | intr &= ~VINO_INTSTAT_A; | |
1814 | ctrl |= VINO_CTRL_A_INT; | |
1815 | ||
1816 | /* enable synchronization */ | |
1817 | ctrl |= VINO_CTRL_A_SYNC_ENBL; | |
1818 | ||
1819 | /* enable frame assembly */ | |
1820 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; | |
1821 | ||
1822 | /* set decimation used */ | |
1823 | if (vcs->decimation < 2) | |
1824 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; | |
1825 | else { | |
1826 | ctrl |= VINO_CTRL_A_DEC_ENBL; | |
1827 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; | |
1828 | ctrl |= (vcs->decimation - 1) << | |
1829 | VINO_CTRL_A_DEC_SCALE_SHIFT; | |
1830 | } | |
1831 | ||
1832 | /* select input interface */ | |
1833 | if (vcs->input == VINO_INPUT_D1) | |
1834 | ctrl |= VINO_CTRL_A_SELECT; | |
1835 | else | |
1836 | ctrl &= ~VINO_CTRL_A_SELECT; | |
1837 | ||
1838 | /* palette */ | |
1839 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | | |
1840 | VINO_CTRL_A_DITHER); | |
1841 | } else { | |
1842 | intr &= ~VINO_INTSTAT_B; | |
1843 | ctrl |= VINO_CTRL_B_INT; | |
1844 | ||
1845 | ctrl |= VINO_CTRL_B_SYNC_ENBL; | |
1846 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; | |
1847 | ||
1848 | if (vcs->decimation < 2) | |
1849 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; | |
1850 | else { | |
1851 | ctrl |= VINO_CTRL_B_DEC_ENBL; | |
1852 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; | |
1853 | ctrl |= (vcs->decimation - 1) << | |
1854 | VINO_CTRL_B_DEC_SCALE_SHIFT; | |
1855 | ||
1856 | } | |
1857 | if (vcs->input == VINO_INPUT_D1) | |
1858 | ctrl |= VINO_CTRL_B_SELECT; | |
1859 | else | |
1860 | ctrl &= ~VINO_CTRL_B_SELECT; | |
1861 | ||
1862 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | | |
1863 | VINO_CTRL_B_DITHER); | |
1864 | } | |
1865 | ||
1866 | /* set palette */ | |
1867 | fb->data_format = vcs->data_format; | |
1868 | ||
1869 | switch (vcs->data_format) { | |
1870 | case VINO_DATA_FMT_GREY: | |
1871 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1872 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; | |
1873 | break; | |
1874 | case VINO_DATA_FMT_RGB32: | |
1875 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1876 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; | |
1877 | break; | |
1878 | case VINO_DATA_FMT_YUV: | |
1879 | /* nothing needs to be done */ | |
1880 | break; | |
1881 | case VINO_DATA_FMT_RGB332: | |
1882 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1883 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : | |
1884 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | vino->intr_status = intr; | |
1889 | vino->control = ctrl; | |
1890 | ||
1891 | return 0; | |
1892 | } | |
1893 | ||
1894 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1895 | static inline void vino_dma_start(struct vino_channel_settings *vcs) |
d203a7ec RB |
1896 | { |
1897 | u32 ctrl = vino->control; | |
1898 | ||
1899 | dprintk("vino_dma_start():\n"); | |
1900 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1901 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; | |
1902 | vino->control = ctrl; | |
1903 | } | |
1904 | ||
1905 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1906 | static inline void vino_dma_stop(struct vino_channel_settings *vcs) |
d203a7ec RB |
1907 | { |
1908 | u32 ctrl = vino->control; | |
1909 | ||
1910 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? | |
1911 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; | |
a637a114 LM |
1912 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
1913 | ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; | |
d203a7ec RB |
1914 | vino->control = ctrl; |
1915 | dprintk("vino_dma_stop():\n"); | |
1916 | } | |
1917 | ||
1918 | /* | |
1919 | * Load dummy page to descriptor registers. This prevents generating of | |
1920 | * spurious interrupts. (execute only with vino_lock locked) | |
1921 | */ | |
1922 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) | |
1923 | { | |
1924 | struct sgi_vino_channel *ch; | |
1925 | ||
1926 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1927 | ||
1928 | ch->page_index = 0; | |
1929 | ch->line_count = 0; | |
1930 | ||
1931 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; | |
1932 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
1933 | ||
1934 | udelay(VINO_DESC_FETCH_DELAY); | |
1935 | dprintk("channel %c clear interrupt condition\n", | |
1936 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); | |
1937 | } | |
1938 | ||
1939 | static int vino_capture(struct vino_channel_settings *vcs, | |
1940 | struct vino_framebuffer *fb) | |
1941 | { | |
1942 | int err = 0; | |
1943 | unsigned long flags, flags2; | |
1944 | ||
1945 | spin_lock_irqsave(&fb->state_lock, flags); | |
1946 | ||
1947 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
1948 | err = -EBUSY; | |
1949 | fb->state = VINO_FRAMEBUFFER_IN_USE; | |
1950 | ||
1951 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
1952 | ||
1953 | if (err) | |
1954 | return err; | |
1955 | ||
1956 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
1957 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); | |
1958 | ||
1959 | vino_dma_setup(vcs, fb); | |
1960 | vino_dma_start(vcs); | |
1961 | ||
1962 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); | |
1963 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
1964 | ||
1965 | return err; | |
1966 | } | |
1967 | ||
1968 | static | |
1969 | struct vino_framebuffer *vino_capture_enqueue(struct | |
1970 | vino_channel_settings *vcs, | |
1971 | unsigned int index) | |
1972 | { | |
1973 | struct vino_framebuffer *fb; | |
1974 | unsigned long flags; | |
1975 | ||
1976 | dprintk("vino_capture_enqueue():\n"); | |
1977 | ||
1978 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
1979 | ||
1980 | fb = vino_queue_add(&vcs->fb_queue, index); | |
1981 | if (fb == NULL) { | |
1982 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " | |
1983 | "queue full?\n"); | |
1984 | goto out; | |
1985 | } | |
1986 | out: | |
1987 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
1988 | ||
1989 | return fb; | |
1990 | } | |
1991 | ||
1992 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) | |
1993 | { | |
1994 | struct vino_framebuffer *fb; | |
1995 | unsigned int incoming, id; | |
1996 | int err = 0; | |
a637a114 | 1997 | unsigned long flags; |
d203a7ec RB |
1998 | |
1999 | dprintk("vino_capture_next():\n"); | |
2000 | ||
2001 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2002 | ||
2003 | if (start) { | |
2004 | /* start capture only if capture isn't in progress already */ | |
2005 | if (vcs->capturing) { | |
2006 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2007 | return 0; | |
2008 | } | |
2009 | ||
2010 | } else { | |
2011 | /* capture next frame: | |
2012 | * stop capture if capturing is not set */ | |
2013 | if (!vcs->capturing) { | |
2014 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2015 | return 0; | |
2016 | } | |
2017 | } | |
2018 | ||
2019 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
2020 | if (err) { | |
2021 | dprintk("vino_capture_next(): vino_queue_get_incoming() " | |
2022 | "failed\n"); | |
2023 | err = -EINVAL; | |
2024 | goto out; | |
2025 | } | |
2026 | if (incoming == 0) { | |
2027 | dprintk("vino_capture_next(): no buffers available\n"); | |
2028 | goto out; | |
2029 | } | |
2030 | ||
2031 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2032 | if (fb == NULL) { | |
2033 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); | |
2034 | err = -EINVAL; | |
2035 | goto out; | |
2036 | } | |
2037 | ||
d203a7ec RB |
2038 | if (start) { |
2039 | vcs->capturing = 1; | |
2040 | } | |
2041 | ||
2042 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2043 | ||
2044 | err = vino_capture(vcs, fb); | |
2045 | ||
2046 | return err; | |
2047 | ||
2048 | out: | |
2049 | vcs->capturing = 0; | |
2050 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2051 | ||
2052 | return err; | |
2053 | } | |
2054 | ||
a637a114 | 2055 | static inline int vino_is_capturing(struct vino_channel_settings *vcs) |
d203a7ec RB |
2056 | { |
2057 | int ret; | |
2058 | unsigned long flags; | |
2059 | ||
2060 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2061 | ||
2062 | ret = vcs->capturing; | |
2063 | ||
2064 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2065 | ||
2066 | return ret; | |
2067 | } | |
2068 | ||
2069 | /* waits until a frame is captured */ | |
2070 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) | |
2071 | { | |
2072 | wait_queue_t wait; | |
2073 | int err = 0; | |
2074 | ||
2075 | dprintk("vino_wait_for_frame():\n"); | |
2076 | ||
2077 | init_waitqueue_entry(&wait, current); | |
2078 | /* add ourselves into wait queue */ | |
2079 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2080 | /* and set current state */ | |
2081 | set_current_state(TASK_INTERRUPTIBLE); | |
2082 | ||
2083 | /* to ensure that schedule_timeout will return immediately | |
2084 | * if VINO interrupt was triggred meanwhile */ | |
2085 | schedule_timeout(HZ / 10); | |
2086 | ||
2087 | if (signal_pending(current)) | |
2088 | err = -EINTR; | |
2089 | ||
2090 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2091 | ||
2092 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", | |
2093 | err ? "failed" : "ok"); | |
2094 | ||
2095 | return err; | |
2096 | } | |
2097 | ||
2098 | /* the function assumes that PAGE_SIZE % 4 == 0 */ | |
2099 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { | |
2100 | unsigned char *pageptr; | |
2101 | unsigned int page, i; | |
2102 | unsigned char a; | |
2103 | ||
2104 | for (page = 0; page < fb->desc_table.page_count; page++) { | |
2105 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; | |
2106 | ||
2107 | for (i = 0; i < PAGE_SIZE; i += 4) { | |
2108 | a = pageptr[0]; | |
2109 | pageptr[0] = pageptr[3]; | |
2110 | pageptr[1] = pageptr[2]; | |
2111 | pageptr[2] = pageptr[1]; | |
2112 | pageptr[3] = a; | |
2113 | pageptr += 4; | |
2114 | } | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* checks if the buffer is in correct state and syncs data */ | |
2119 | static int vino_check_buffer(struct vino_channel_settings *vcs, | |
2120 | struct vino_framebuffer *fb) | |
2121 | { | |
2122 | int err = 0; | |
2123 | unsigned long flags; | |
2124 | ||
2125 | dprintk("vino_check_buffer():\n"); | |
2126 | ||
2127 | spin_lock_irqsave(&fb->state_lock, flags); | |
2128 | switch (fb->state) { | |
2129 | case VINO_FRAMEBUFFER_IN_USE: | |
2130 | err = -EIO; | |
2131 | break; | |
2132 | case VINO_FRAMEBUFFER_READY: | |
2133 | vino_sync_buffer(fb); | |
2134 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2135 | break; | |
2136 | default: | |
2137 | err = -EINVAL; | |
2138 | } | |
2139 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2140 | ||
2141 | if (!err) { | |
2142 | if (vino_pixel_conversion | |
2143 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { | |
2144 | vino_convert_to_rgba(fb); | |
2145 | } | |
2146 | } else if (err && (err != -EINVAL)) { | |
2147 | dprintk("vino_check_buffer(): buffer not ready\n"); | |
2148 | ||
2149 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2150 | vino_dma_stop(vcs); | |
2151 | vino_clear_interrupt(vcs); | |
2152 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2153 | } | |
2154 | ||
2155 | return err; | |
2156 | } | |
2157 | ||
2158 | /* forcefully terminates capture */ | |
2159 | static void vino_capture_stop(struct vino_channel_settings *vcs) | |
2160 | { | |
2161 | unsigned int incoming = 0, outgoing = 0, id; | |
2162 | unsigned long flags, flags2; | |
2163 | ||
2164 | dprintk("vino_capture_stop():\n"); | |
2165 | ||
2166 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
a637a114 | 2167 | |
d203a7ec RB |
2168 | /* unset capturing to stop queue processing */ |
2169 | vcs->capturing = 0; | |
2170 | ||
2171 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); | |
2172 | ||
2173 | vino_dma_stop(vcs); | |
2174 | vino_clear_interrupt(vcs); | |
2175 | ||
2176 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); | |
2177 | ||
2178 | /* remove all items from the queue */ | |
2179 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2180 | dprintk("vino_capture_stop(): " | |
2181 | "vino_queue_get_incoming() failed\n"); | |
2182 | goto out; | |
2183 | } | |
2184 | while (incoming > 0) { | |
2185 | vino_queue_transfer(&vcs->fb_queue); | |
2186 | ||
2187 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2188 | dprintk("vino_capture_stop(): " | |
2189 | "vino_queue_get_incoming() failed\n"); | |
2190 | goto out; | |
2191 | } | |
2192 | } | |
2193 | ||
2194 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2195 | dprintk("vino_capture_stop(): " | |
2196 | "vino_queue_get_outgoing() failed\n"); | |
2197 | goto out; | |
2198 | } | |
2199 | while (outgoing > 0) { | |
2200 | vino_queue_remove(&vcs->fb_queue, &id); | |
2201 | ||
2202 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2203 | dprintk("vino_capture_stop(): " | |
2204 | "vino_queue_get_outgoing() failed\n"); | |
2205 | goto out; | |
2206 | } | |
2207 | } | |
2208 | ||
2209 | out: | |
2210 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2211 | } | |
2212 | ||
a637a114 | 2213 | #if 0 |
d203a7ec RB |
2214 | static int vino_capture_failed(struct vino_channel_settings *vcs) |
2215 | { | |
2216 | struct vino_framebuffer *fb; | |
2217 | unsigned long flags; | |
2218 | unsigned int i; | |
2219 | int ret; | |
2220 | ||
2221 | dprintk("vino_capture_failed():\n"); | |
2222 | ||
2223 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2224 | ||
2225 | vino_dma_stop(vcs); | |
2226 | vino_clear_interrupt(vcs); | |
2227 | ||
2228 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2229 | ||
2230 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); | |
2231 | if (ret == VINO_QUEUE_ERROR) { | |
2232 | dprintk("vino_queue_get_incoming() failed\n"); | |
2233 | return -EINVAL; | |
2234 | } | |
2235 | if (i == 0) { | |
2236 | /* no buffers to process */ | |
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | fb = vino_queue_peek(&vcs->fb_queue, &i); | |
2241 | if (fb == NULL) { | |
2242 | dprintk("vino_queue_peek() failed\n"); | |
2243 | return -EINVAL; | |
2244 | } | |
2245 | ||
2246 | spin_lock_irqsave(&fb->state_lock, flags); | |
2247 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { | |
2248 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2249 | vino_queue_transfer(&vcs->fb_queue); | |
2250 | vino_queue_remove(&vcs->fb_queue, &i); | |
2251 | /* we should actually discard the newest frame, | |
2252 | * but who cares ... */ | |
2253 | } | |
2254 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2255 | ||
2256 | return 0; | |
2257 | } | |
a637a114 LM |
2258 | #endif |
2259 | ||
2260 | static void vino_skip_frame(struct vino_channel_settings *vcs) | |
2261 | { | |
2262 | struct vino_framebuffer *fb; | |
2263 | unsigned long flags; | |
2264 | unsigned int id; | |
2265 | ||
2266 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2267 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2268 | if (!fb) { | |
2269 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2270 | dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); | |
2271 | return; | |
2272 | } | |
2273 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2274 | ||
2275 | spin_lock_irqsave(&fb->state_lock, flags); | |
2276 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2277 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2278 | ||
2279 | vino_capture_next(vcs, 0); | |
2280 | } | |
d203a7ec | 2281 | |
a637a114 | 2282 | static void vino_frame_done(struct vino_channel_settings *vcs) |
d203a7ec RB |
2283 | { |
2284 | struct vino_framebuffer *fb; | |
2285 | unsigned long flags; | |
2286 | ||
2287 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2288 | fb = vino_queue_transfer(&vcs->fb_queue); | |
2289 | if (!fb) { | |
2290 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2291 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); | |
2292 | return; | |
2293 | } | |
2294 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2295 | ||
a637a114 LM |
2296 | fb->frame_counter = vcs->int_data.frame_counter; |
2297 | memcpy(&fb->timestamp, &vcs->int_data.timestamp, | |
2298 | sizeof(struct timeval)); | |
d203a7ec RB |
2299 | |
2300 | spin_lock_irqsave(&fb->state_lock, flags); | |
2301 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
2302 | fb->state = VINO_FRAMEBUFFER_READY; | |
2303 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2304 | ||
2305 | wake_up(&vcs->fb_queue.frame_wait_queue); | |
2306 | ||
2307 | vino_capture_next(vcs, 0); | |
2308 | } | |
2309 | ||
a637a114 LM |
2310 | static void vino_capture_tasklet(unsigned long channel) { |
2311 | struct vino_channel_settings *vcs; | |
2312 | ||
2313 | vcs = (channel == VINO_CHANNEL_A) | |
2314 | ? &vino_drvdata->a : &vino_drvdata->b; | |
2315 | ||
2316 | if (vcs->int_data.skip) | |
2317 | vcs->int_data.skip_count++; | |
2318 | ||
2319 | if (vcs->int_data.skip && (vcs->int_data.skip_count | |
2320 | <= VINO_MAX_FRAME_SKIP_COUNT)) { | |
2321 | vino_skip_frame(vcs); | |
2322 | } else { | |
2323 | vcs->int_data.skip_count = 0; | |
2324 | vino_frame_done(vcs); | |
2325 | } | |
2326 | } | |
2327 | ||
7d12e780 | 2328 | static irqreturn_t vino_interrupt(int irq, void *dev_id) |
d203a7ec | 2329 | { |
a637a114 | 2330 | u32 ctrl, intr; |
d203a7ec | 2331 | unsigned int fc_a, fc_b; |
a637a114 LM |
2332 | int handled_a = 0, skip_a = 0, done_a = 0; |
2333 | int handled_b = 0, skip_b = 0, done_b = 0; | |
2334 | ||
2335 | #ifdef VINO_DEBUG_INT | |
2336 | int loop = 0; | |
2337 | unsigned int line_count = vino->a.line_count, | |
2338 | page_index = vino->a.page_index, | |
2339 | field_counter = vino->a.field_counter, | |
2340 | start_desc_tbl = vino->a.start_desc_tbl, | |
2341 | next_4_desc = vino->a.next_4_desc; | |
2342 | unsigned int line_count_2, | |
2343 | page_index_2, | |
2344 | field_counter_2, | |
2345 | start_desc_tbl_2, | |
2346 | next_4_desc_2; | |
2347 | #endif | |
d203a7ec RB |
2348 | |
2349 | spin_lock(&vino_drvdata->vino_lock); | |
2350 | ||
a637a114 LM |
2351 | while ((intr = vino->intr_status)) { |
2352 | fc_a = vino->a.field_counter >> 1; | |
2353 | fc_b = vino->b.field_counter >> 1; | |
2354 | ||
2355 | /* handle error-interrupts in some special way ? | |
2356 | * --> skips frames */ | |
2357 | if (intr & VINO_INTSTAT_A) { | |
2358 | if (intr & VINO_INTSTAT_A_EOF) { | |
2359 | vino_drvdata->a.field++; | |
2360 | if (vino_drvdata->a.field > 1) { | |
2361 | vino_dma_stop(&vino_drvdata->a); | |
2362 | vino_clear_interrupt(&vino_drvdata->a); | |
2363 | vino_drvdata->a.field = 0; | |
2364 | done_a = 1; | |
2365 | } else { | |
2366 | if (vino->a.page_index | |
2367 | != vino_drvdata->a.line_size) { | |
2368 | vino->a.line_count = 0; | |
2369 | vino->a.page_index = | |
2370 | vino_drvdata-> | |
2371 | a.line_size; | |
2372 | vino->a.next_4_desc = | |
2373 | vino->a.start_desc_tbl; | |
2374 | } | |
2375 | } | |
2376 | dprintk("channel A end-of-field " | |
2377 | "interrupt: %04x\n", intr); | |
2378 | } else { | |
d203a7ec RB |
2379 | vino_dma_stop(&vino_drvdata->a); |
2380 | vino_clear_interrupt(&vino_drvdata->a); | |
2381 | vino_drvdata->a.field = 0; | |
a637a114 LM |
2382 | skip_a = 1; |
2383 | dprintk("channel A error interrupt: %04x\n", | |
2384 | intr); | |
d203a7ec | 2385 | } |
a637a114 LM |
2386 | |
2387 | #ifdef VINO_DEBUG_INT | |
2388 | line_count_2 = vino->a.line_count; | |
2389 | page_index_2 = vino->a.page_index; | |
2390 | field_counter_2 = vino->a.field_counter; | |
2391 | start_desc_tbl_2 = vino->a.start_desc_tbl; | |
2392 | next_4_desc_2 = vino->a.next_4_desc; | |
2393 | ||
2394 | printk("intr = %04x, loop = %d, field = %d\n", | |
2395 | intr, loop, vino_drvdata->a.field); | |
2396 | printk("1- line count = %04d, page index = %04d, " | |
2397 | "start = %08x, next = %08x\n" | |
2398 | " fieldc = %d, framec = %d\n", | |
2399 | line_count, page_index, start_desc_tbl, | |
2400 | next_4_desc, field_counter, fc_a); | |
2401 | printk("12-line count = %04d, page index = %04d, " | |
2402 | " start = %08x, next = %08x\n", | |
2403 | line_count_2, page_index_2, start_desc_tbl_2, | |
2404 | next_4_desc_2); | |
2405 | ||
2406 | if (done_a) | |
2407 | printk("\n"); | |
2408 | #endif | |
d203a7ec | 2409 | } |
a637a114 LM |
2410 | |
2411 | if (intr & VINO_INTSTAT_B) { | |
2412 | if (intr & VINO_INTSTAT_B_EOF) { | |
2413 | vino_drvdata->b.field++; | |
2414 | if (vino_drvdata->b.field > 1) { | |
2415 | vino_dma_stop(&vino_drvdata->b); | |
2416 | vino_clear_interrupt(&vino_drvdata->b); | |
2417 | vino_drvdata->b.field = 0; | |
2418 | done_b = 1; | |
2419 | } | |
2420 | dprintk("channel B end-of-field " | |
2421 | "interrupt: %04x\n", intr); | |
2422 | } else { | |
d203a7ec RB |
2423 | vino_dma_stop(&vino_drvdata->b); |
2424 | vino_clear_interrupt(&vino_drvdata->b); | |
2425 | vino_drvdata->b.field = 0; | |
a637a114 LM |
2426 | skip_b = 1; |
2427 | dprintk("channel B error interrupt: %04x\n", | |
2428 | intr); | |
d203a7ec | 2429 | } |
d203a7ec | 2430 | } |
d203a7ec | 2431 | |
a637a114 LM |
2432 | /* Always remember to clear interrupt status. |
2433 | * Disable VINO interrupts while we do this. */ | |
2434 | ctrl = vino->control; | |
2435 | vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); | |
2436 | vino->intr_status = ~intr; | |
2437 | vino->control = ctrl; | |
d203a7ec | 2438 | |
a637a114 | 2439 | spin_unlock(&vino_drvdata->vino_lock); |
d203a7ec | 2440 | |
a637a114 LM |
2441 | if ((!handled_a) && (done_a || skip_a)) { |
2442 | if (!skip_a) { | |
2443 | do_gettimeofday(&vino_drvdata-> | |
2444 | a.int_data.timestamp); | |
2445 | vino_drvdata->a.int_data.frame_counter = fc_a; | |
2446 | } | |
2447 | vino_drvdata->a.int_data.skip = skip_a; | |
2448 | ||
2449 | dprintk("channel A %s, interrupt: %d\n", | |
2450 | skip_a ? "skipping frame" : "frame done", | |
2451 | intr); | |
2452 | tasklet_hi_schedule(&vino_tasklet_a); | |
2453 | handled_a = 1; | |
2454 | } | |
2455 | ||
2456 | if ((!handled_b) && (done_b || skip_b)) { | |
2457 | if (!skip_b) { | |
2458 | do_gettimeofday(&vino_drvdata-> | |
2459 | b.int_data.timestamp); | |
2460 | vino_drvdata->b.int_data.frame_counter = fc_b; | |
2461 | } | |
2462 | vino_drvdata->b.int_data.skip = skip_b; | |
2463 | ||
2464 | dprintk("channel B %s, interrupt: %d\n", | |
2465 | skip_b ? "skipping frame" : "frame done", | |
2466 | intr); | |
2467 | tasklet_hi_schedule(&vino_tasklet_b); | |
2468 | handled_b = 1; | |
2469 | } | |
2470 | ||
2471 | #ifdef VINO_DEBUG_INT | |
2472 | loop++; | |
2473 | #endif | |
2474 | spin_lock(&vino_drvdata->vino_lock); | |
d203a7ec RB |
2475 | } |
2476 | ||
a637a114 LM |
2477 | spin_unlock(&vino_drvdata->vino_lock); |
2478 | ||
d203a7ec RB |
2479 | return IRQ_HANDLED; |
2480 | } | |
2481 | ||
2482 | /* VINO video input management */ | |
2483 | ||
2484 | static int vino_get_saa7191_input(int input) | |
2485 | { | |
2486 | switch (input) { | |
2487 | case VINO_INPUT_COMPOSITE: | |
2488 | return SAA7191_INPUT_COMPOSITE; | |
2489 | case VINO_INPUT_SVIDEO: | |
2490 | return SAA7191_INPUT_SVIDEO; | |
2491 | default: | |
2492 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " | |
2493 | "invalid input!\n"); | |
2494 | return -1; | |
2495 | } | |
2496 | } | |
2497 | ||
a637a114 | 2498 | static int vino_get_saa7191_norm(unsigned int data_norm) |
d203a7ec | 2499 | { |
a637a114 | 2500 | switch (data_norm) { |
d203a7ec RB |
2501 | case VINO_DATA_NORM_AUTO: |
2502 | return SAA7191_NORM_AUTO; | |
a637a114 LM |
2503 | case VINO_DATA_NORM_AUTO_EXT: |
2504 | return SAA7191_NORM_AUTO_EXT; | |
d203a7ec RB |
2505 | case VINO_DATA_NORM_PAL: |
2506 | return SAA7191_NORM_PAL; | |
2507 | case VINO_DATA_NORM_NTSC: | |
2508 | return SAA7191_NORM_NTSC; | |
2509 | case VINO_DATA_NORM_SECAM: | |
2510 | return SAA7191_NORM_SECAM; | |
2511 | default: | |
2512 | printk(KERN_ERR "VINO: vino_get_saa7191_norm(): " | |
2513 | "invalid norm!\n"); | |
2514 | return -1; | |
2515 | } | |
2516 | } | |
2517 | ||
a637a114 LM |
2518 | static int vino_get_from_saa7191_norm(int saa7191_norm) |
2519 | { | |
2520 | switch (saa7191_norm) { | |
2521 | case SAA7191_NORM_PAL: | |
2522 | return VINO_DATA_NORM_PAL; | |
2523 | case SAA7191_NORM_NTSC: | |
2524 | return VINO_DATA_NORM_NTSC; | |
2525 | case SAA7191_NORM_SECAM: | |
2526 | return VINO_DATA_NORM_SECAM; | |
2527 | default: | |
2528 | printk(KERN_ERR "VINO: vino_get_from_saa7191_norm(): " | |
2529 | "invalid norm!\n"); | |
2530 | return VINO_DATA_NORM_NONE; | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | static int vino_saa7191_set_norm(unsigned int *data_norm) | |
2535 | { | |
2536 | int saa7191_norm, new_data_norm; | |
2537 | int err = 0; | |
2538 | ||
2539 | saa7191_norm = vino_get_saa7191_norm(*data_norm); | |
2540 | ||
2541 | err = i2c_decoder_command(DECODER_SAA7191_SET_NORM, | |
2542 | &saa7191_norm); | |
2543 | if (err) | |
2544 | goto out; | |
2545 | ||
2546 | if ((*data_norm == VINO_DATA_NORM_AUTO) | |
2547 | || (*data_norm == VINO_DATA_NORM_AUTO_EXT)) { | |
2548 | struct saa7191_status status; | |
2549 | ||
2550 | err = i2c_decoder_command(DECODER_SAA7191_GET_STATUS, | |
2551 | &status); | |
2552 | if (err) | |
2553 | goto out; | |
2554 | ||
2555 | new_data_norm = | |
2556 | vino_get_from_saa7191_norm(status.norm); | |
2557 | if (new_data_norm == VINO_DATA_NORM_NONE) { | |
2558 | err = -EINVAL; | |
2559 | goto out; | |
2560 | } | |
2561 | ||
2562 | *data_norm = (unsigned int)new_data_norm; | |
2563 | } | |
2564 | ||
2565 | out: | |
2566 | return err; | |
2567 | } | |
2568 | ||
d203a7ec RB |
2569 | /* execute with input_lock locked */ |
2570 | static int vino_is_input_owner(struct vino_channel_settings *vcs) | |
2571 | { | |
2572 | switch(vcs->input) { | |
2573 | case VINO_INPUT_COMPOSITE: | |
2574 | case VINO_INPUT_SVIDEO: | |
2575 | return (vino_drvdata->decoder.owner == vcs->channel); | |
2576 | case VINO_INPUT_D1: | |
2577 | return (vino_drvdata->camera.owner == vcs->channel); | |
2578 | default: | |
2579 | return 0; | |
2580 | } | |
2581 | } | |
2582 | ||
2583 | static int vino_acquire_input(struct vino_channel_settings *vcs) | |
2584 | { | |
a637a114 | 2585 | unsigned long flags; |
d203a7ec RB |
2586 | int ret = 0; |
2587 | ||
2588 | dprintk("vino_acquire_input():\n"); | |
2589 | ||
a637a114 | 2590 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2591 | |
2592 | /* First try D1 and then SAA7191 */ | |
2593 | if (vino_drvdata->camera.driver | |
2594 | && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { | |
2595 | if (i2c_use_client(vino_drvdata->camera.driver)) { | |
2596 | ret = -ENODEV; | |
2597 | goto out; | |
2598 | } | |
2599 | ||
2600 | vino_drvdata->camera.owner = vcs->channel; | |
2601 | vcs->input = VINO_INPUT_D1; | |
2602 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2603 | } else if (vino_drvdata->decoder.driver | |
2604 | && (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) { | |
a637a114 | 2605 | int input, data_norm; |
d203a7ec | 2606 | int saa7191_input; |
d203a7ec RB |
2607 | |
2608 | if (i2c_use_client(vino_drvdata->decoder.driver)) { | |
2609 | ret = -ENODEV; | |
2610 | goto out; | |
2611 | } | |
2612 | ||
a637a114 LM |
2613 | input = VINO_INPUT_COMPOSITE; |
2614 | ||
2615 | saa7191_input = vino_get_saa7191_input(input); | |
2616 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2617 | &saa7191_input); | |
2618 | if (ret) { | |
2619 | ret = -EINVAL; | |
2620 | goto out; | |
2621 | } | |
2622 | ||
2623 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec | 2624 | |
a637a114 LM |
2625 | /* Don't hold spinlocks while auto-detecting norm |
2626 | * as it may take a while... */ | |
d203a7ec | 2627 | |
a637a114 LM |
2628 | data_norm = VINO_DATA_NORM_AUTO_EXT; |
2629 | ||
2630 | ret = vino_saa7191_set_norm(&data_norm); | |
2631 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2632 | data_norm = VINO_DATA_NORM_PAL; | |
2633 | ret = vino_saa7191_set_norm(&data_norm); | |
2634 | } | |
2635 | ||
2636 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
2637 | ||
2638 | if (ret) { | |
2639 | ret = -EINVAL; | |
2640 | goto out; | |
2641 | } | |
2642 | ||
2643 | vino_drvdata->decoder.owner = vcs->channel; | |
2644 | ||
2645 | vcs->input = input; | |
2646 | vcs->data_norm = data_norm; | |
d203a7ec RB |
2647 | } else { |
2648 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? | |
2649 | vino_drvdata->b.input : vino_drvdata->a.input; | |
2650 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? | |
2651 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; | |
2652 | } | |
2653 | ||
2654 | if (vcs->input == VINO_INPUT_NONE) { | |
2655 | ret = -ENODEV; | |
2656 | goto out; | |
2657 | } | |
2658 | ||
a637a114 LM |
2659 | vino_set_default_clipping(vcs); |
2660 | vino_set_default_scaling(vcs); | |
2661 | vino_set_default_framerate(vcs); | |
d203a7ec RB |
2662 | |
2663 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); | |
2664 | ||
2665 | out: | |
a637a114 | 2666 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2667 | |
2668 | return ret; | |
2669 | } | |
2670 | ||
2671 | static int vino_set_input(struct vino_channel_settings *vcs, int input) | |
2672 | { | |
2673 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2674 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2675 | unsigned long flags; |
d203a7ec RB |
2676 | int ret = 0; |
2677 | ||
2678 | dprintk("vino_set_input():\n"); | |
2679 | ||
a637a114 | 2680 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2681 | |
2682 | if (vcs->input == input) | |
2683 | goto out; | |
2684 | ||
a637a114 | 2685 | switch (input) { |
d203a7ec RB |
2686 | case VINO_INPUT_COMPOSITE: |
2687 | case VINO_INPUT_SVIDEO: | |
2688 | if (!vino_drvdata->decoder.driver) { | |
2689 | ret = -EINVAL; | |
2690 | goto out; | |
2691 | } | |
2692 | ||
2693 | if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { | |
2694 | if (i2c_use_client(vino_drvdata->decoder.driver)) { | |
2695 | ret = -ENODEV; | |
2696 | goto out; | |
2697 | } | |
2698 | vino_drvdata->decoder.owner = vcs->channel; | |
2699 | } | |
2700 | ||
2701 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
a637a114 | 2702 | int data_norm; |
d203a7ec | 2703 | int saa7191_input; |
d203a7ec | 2704 | |
a637a114 LM |
2705 | saa7191_input = vino_get_saa7191_input(input); |
2706 | ret = i2c_decoder_command(DECODER_SET_INPUT, | |
2707 | &saa7191_input); | |
2708 | if (ret) { | |
2709 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2710 | ret = -EINVAL; | |
2711 | goto out; | |
2712 | } | |
2713 | ||
2714 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
2715 | ||
2716 | /* Don't hold spinlocks while auto-detecting norm | |
2717 | * as it may take a while... */ | |
2718 | ||
2719 | data_norm = VINO_DATA_NORM_AUTO_EXT; | |
2720 | ||
2721 | ret = vino_saa7191_set_norm(&data_norm); | |
2722 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { | |
2723 | data_norm = VINO_DATA_NORM_PAL; | |
2724 | ret = vino_saa7191_set_norm(&data_norm); | |
2725 | } | |
d203a7ec | 2726 | |
a637a114 LM |
2727 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
2728 | ||
2729 | if (ret) { | |
2730 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2731 | ret = -EINVAL; | |
2732 | goto out; | |
2733 | } | |
2734 | ||
2735 | vcs->input = input; | |
2736 | vcs->data_norm = data_norm; | |
d203a7ec | 2737 | } else { |
a637a114 | 2738 | if (input != vcs2->input) { |
d203a7ec RB |
2739 | ret = -EBUSY; |
2740 | goto out; | |
2741 | } | |
2742 | ||
2743 | vcs->input = input; | |
2744 | vcs->data_norm = vcs2->data_norm; | |
2745 | } | |
2746 | ||
2747 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2748 | /* Transfer the ownership or release the input */ | |
2749 | if (vcs2->input == VINO_INPUT_D1) { | |
2750 | vino_drvdata->camera.owner = vcs2->channel; | |
2751 | } else { | |
2752 | i2c_release_client(vino_drvdata-> | |
2753 | camera.driver); | |
2754 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2755 | } | |
2756 | } | |
2757 | break; | |
2758 | case VINO_INPUT_D1: | |
2759 | if (!vino_drvdata->camera.driver) { | |
2760 | ret = -EINVAL; | |
2761 | goto out; | |
2762 | } | |
2763 | ||
2764 | if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { | |
2765 | if (i2c_use_client(vino_drvdata->camera.driver)) { | |
2766 | ret = -ENODEV; | |
2767 | goto out; | |
2768 | } | |
2769 | vino_drvdata->camera.owner = vcs->channel; | |
2770 | } | |
2771 | ||
2772 | if (vino_drvdata->decoder.owner == vcs->channel) { | |
2773 | /* Transfer the ownership or release the input */ | |
2774 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2775 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2776 | vino_drvdata->decoder.owner = vcs2->channel; | |
2777 | } else { | |
2778 | i2c_release_client(vino_drvdata-> | |
2779 | decoder.driver); | |
2780 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2781 | } | |
2782 | } | |
2783 | ||
2784 | vcs->input = input; | |
2785 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2786 | break; | |
2787 | default: | |
2788 | ret = -EINVAL; | |
2789 | goto out; | |
2790 | } | |
2791 | ||
2792 | vino_set_default_clipping(vcs); | |
a637a114 | 2793 | vino_set_default_scaling(vcs); |
d203a7ec RB |
2794 | vino_set_default_framerate(vcs); |
2795 | ||
2796 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); | |
2797 | ||
2798 | out: | |
a637a114 | 2799 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2800 | |
2801 | return ret; | |
2802 | } | |
2803 | ||
2804 | static void vino_release_input(struct vino_channel_settings *vcs) | |
2805 | { | |
2806 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2807 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2808 | unsigned long flags; |
d203a7ec RB |
2809 | |
2810 | dprintk("vino_release_input():\n"); | |
2811 | ||
a637a114 | 2812 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2813 | |
2814 | /* Release ownership of the channel | |
2815 | * and if the other channel takes input from | |
2816 | * the same source, transfer the ownership */ | |
2817 | if (vino_drvdata->camera.owner == vcs->channel) { | |
2818 | if (vcs2->input == VINO_INPUT_D1) { | |
2819 | vino_drvdata->camera.owner = vcs2->channel; | |
2820 | } else { | |
2821 | i2c_release_client(vino_drvdata->camera.driver); | |
2822 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; | |
2823 | } | |
2824 | } else if (vino_drvdata->decoder.owner == vcs->channel) { | |
2825 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2826 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
2827 | vino_drvdata->decoder.owner = vcs2->channel; | |
2828 | } else { | |
2829 | i2c_release_client(vino_drvdata->decoder.driver); | |
2830 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; | |
2831 | } | |
2832 | } | |
2833 | vcs->input = VINO_INPUT_NONE; | |
2834 | ||
a637a114 | 2835 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2836 | } |
2837 | ||
2838 | /* execute with input_lock locked */ | |
2839 | static int vino_set_data_norm(struct vino_channel_settings *vcs, | |
a637a114 LM |
2840 | unsigned int data_norm, |
2841 | unsigned long *flags) | |
d203a7ec | 2842 | { |
a637a114 LM |
2843 | int err = 0; |
2844 | ||
2845 | if (data_norm == vcs->data_norm) | |
2846 | return 0; | |
d203a7ec RB |
2847 | |
2848 | switch (vcs->input) { | |
2849 | case VINO_INPUT_D1: | |
2850 | /* only one "norm" supported */ | |
a637a114 LM |
2851 | if ((data_norm != VINO_DATA_NORM_D1) |
2852 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2853 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
d203a7ec RB |
2854 | return -EINVAL; |
2855 | break; | |
2856 | case VINO_INPUT_COMPOSITE: | |
a637a114 LM |
2857 | case VINO_INPUT_SVIDEO: { |
2858 | if ((data_norm != VINO_DATA_NORM_PAL) | |
2859 | && (data_norm != VINO_DATA_NORM_NTSC) | |
2860 | && (data_norm != VINO_DATA_NORM_SECAM) | |
2861 | && (data_norm != VINO_DATA_NORM_AUTO) | |
2862 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) | |
2863 | return -EINVAL; | |
d203a7ec | 2864 | |
a637a114 LM |
2865 | spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); |
2866 | ||
2867 | /* Don't hold spinlocks while setting norm | |
2868 | * as it may take a while... */ | |
2869 | ||
2870 | err = vino_saa7191_set_norm(&data_norm); | |
2871 | ||
2872 | spin_lock_irqsave(&vino_drvdata->input_lock, *flags); | |
2873 | ||
2874 | if (err) | |
2875 | goto out; | |
d203a7ec | 2876 | |
d203a7ec | 2877 | vcs->data_norm = data_norm; |
a637a114 LM |
2878 | |
2879 | vino_set_default_clipping(vcs); | |
2880 | vino_set_default_scaling(vcs); | |
2881 | vino_set_default_framerate(vcs); | |
d203a7ec | 2882 | break; |
a637a114 | 2883 | } |
d203a7ec RB |
2884 | default: |
2885 | return -EINVAL; | |
2886 | } | |
2887 | ||
a637a114 LM |
2888 | out: |
2889 | return err; | |
d203a7ec RB |
2890 | } |
2891 | ||
2892 | /* V4L2 helper functions */ | |
2893 | ||
2894 | static int vino_find_data_format(__u32 pixelformat) | |
2895 | { | |
2896 | int i; | |
2897 | ||
2898 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { | |
2899 | if (vino_data_formats[i].pixelformat == pixelformat) | |
2900 | return i; | |
2901 | } | |
2902 | ||
2903 | return VINO_DATA_FMT_NONE; | |
2904 | } | |
2905 | ||
2906 | static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index) | |
2907 | { | |
2908 | int data_norm = VINO_DATA_NORM_NONE; | |
a637a114 | 2909 | unsigned long flags; |
d203a7ec | 2910 | |
a637a114 | 2911 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2912 | switch(vcs->input) { |
2913 | case VINO_INPUT_COMPOSITE: | |
2914 | case VINO_INPUT_SVIDEO: | |
2915 | if (index == 0) { | |
2916 | data_norm = VINO_DATA_NORM_PAL; | |
2917 | } else if (index == 1) { | |
2918 | data_norm = VINO_DATA_NORM_NTSC; | |
2919 | } else if (index == 2) { | |
2920 | data_norm = VINO_DATA_NORM_SECAM; | |
2921 | } | |
2922 | break; | |
2923 | case VINO_INPUT_D1: | |
2924 | if (index == 0) { | |
2925 | data_norm = VINO_DATA_NORM_D1; | |
2926 | } | |
2927 | break; | |
2928 | } | |
a637a114 | 2929 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2930 | |
2931 | return data_norm; | |
2932 | } | |
2933 | ||
2934 | static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index) | |
2935 | { | |
2936 | int input = VINO_INPUT_NONE; | |
a637a114 | 2937 | unsigned long flags; |
d203a7ec | 2938 | |
a637a114 | 2939 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2940 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { |
2941 | switch (index) { | |
2942 | case 0: | |
2943 | input = VINO_INPUT_COMPOSITE; | |
2944 | break; | |
2945 | case 1: | |
2946 | input = VINO_INPUT_SVIDEO; | |
2947 | break; | |
2948 | case 2: | |
2949 | input = VINO_INPUT_D1; | |
2950 | break; | |
2951 | } | |
2952 | } else if (vino_drvdata->decoder.driver) { | |
2953 | switch (index) { | |
2954 | case 0: | |
2955 | input = VINO_INPUT_COMPOSITE; | |
2956 | break; | |
2957 | case 1: | |
2958 | input = VINO_INPUT_SVIDEO; | |
2959 | break; | |
2960 | } | |
2961 | } else if (vino_drvdata->camera.driver) { | |
2962 | switch (index) { | |
2963 | case 0: | |
2964 | input = VINO_INPUT_D1; | |
2965 | break; | |
2966 | } | |
2967 | } | |
a637a114 | 2968 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2969 | |
2970 | return input; | |
2971 | } | |
2972 | ||
2973 | /* execute with input_lock locked */ | |
2974 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) | |
2975 | { | |
2976 | __u32 index = 0; | |
2977 | // FIXME: detect when no inputs available | |
2978 | ||
2979 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { | |
2980 | switch (vcs->input) { | |
2981 | case VINO_INPUT_COMPOSITE: | |
2982 | index = 0; | |
2983 | break; | |
2984 | case VINO_INPUT_SVIDEO: | |
2985 | index = 1; | |
2986 | break; | |
2987 | case VINO_INPUT_D1: | |
2988 | index = 2; | |
2989 | break; | |
2990 | } | |
2991 | } else if (vino_drvdata->decoder.driver) { | |
2992 | switch (vcs->input) { | |
2993 | case VINO_INPUT_COMPOSITE: | |
2994 | index = 0; | |
2995 | break; | |
2996 | case VINO_INPUT_SVIDEO: | |
2997 | index = 1; | |
2998 | break; | |
2999 | } | |
3000 | } else if (vino_drvdata->camera.driver) { | |
3001 | switch (vcs->input) { | |
3002 | case VINO_INPUT_D1: | |
3003 | index = 0; | |
3004 | break; | |
3005 | } | |
3006 | } | |
3007 | ||
3008 | return index; | |
3009 | } | |
3010 | ||
3011 | /* V4L2 ioctls */ | |
3012 | ||
3013 | static void vino_v4l2_querycap(struct v4l2_capability *cap) | |
3014 | { | |
3015 | memset(cap, 0, sizeof(struct v4l2_capability)); | |
3016 | ||
3017 | strcpy(cap->driver, vino_driver_name); | |
3018 | strcpy(cap->card, vino_driver_description); | |
3019 | strcpy(cap->bus_info, vino_bus_name); | |
3020 | cap->version = VINO_VERSION_CODE; | |
3021 | cap->capabilities = | |
3022 | V4L2_CAP_VIDEO_CAPTURE | | |
3023 | V4L2_CAP_STREAMING; | |
3024 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE | |
3025 | } | |
3026 | ||
3027 | static int vino_v4l2_enuminput(struct vino_channel_settings *vcs, | |
3028 | struct v4l2_input *i) | |
3029 | { | |
3030 | __u32 index = i->index; | |
3031 | int input; | |
3032 | dprintk("requested index = %d\n", index); | |
3033 | ||
3034 | input = vino_enum_input(vcs, index); | |
3035 | if (input == VINO_INPUT_NONE) | |
3036 | return -EINVAL; | |
3037 | ||
3038 | memset(i, 0, sizeof(struct v4l2_input)); | |
3039 | ||
3040 | i->index = index; | |
3041 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
3042 | i->std = vino_inputs[input].std; | |
3043 | strcpy(i->name, vino_inputs[input].name); | |
3044 | ||
3045 | if ((input == VINO_INPUT_COMPOSITE) | |
3046 | || (input == VINO_INPUT_SVIDEO)) { | |
3047 | struct saa7191_status status; | |
3048 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3049 | i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL; | |
3050 | i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR; | |
3051 | } | |
3052 | ||
3053 | return 0; | |
3054 | } | |
3055 | ||
3056 | static int vino_v4l2_g_input(struct vino_channel_settings *vcs, | |
a637a114 | 3057 | unsigned int *i) |
d203a7ec RB |
3058 | { |
3059 | __u32 index; | |
3060 | int input; | |
a637a114 | 3061 | unsigned long flags; |
d203a7ec | 3062 | |
a637a114 | 3063 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3064 | input = vcs->input; |
3065 | index = vino_find_input_index(vcs); | |
a637a114 | 3066 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3067 | |
3068 | dprintk("input = %d\n", input); | |
3069 | ||
3070 | if (input == VINO_INPUT_NONE) { | |
3071 | return -EINVAL; | |
3072 | } | |
3073 | ||
a637a114 | 3074 | *i = index; |
d203a7ec RB |
3075 | |
3076 | return 0; | |
3077 | } | |
3078 | ||
3079 | static int vino_v4l2_s_input(struct vino_channel_settings *vcs, | |
a637a114 | 3080 | unsigned int *i) |
d203a7ec RB |
3081 | { |
3082 | int input; | |
a637a114 | 3083 | dprintk("requested input = %d\n", *i); |
d203a7ec | 3084 | |
a637a114 | 3085 | input = vino_enum_input(vcs, *i); |
d203a7ec RB |
3086 | if (input == VINO_INPUT_NONE) |
3087 | return -EINVAL; | |
3088 | ||
3089 | return vino_set_input(vcs, input); | |
3090 | } | |
3091 | ||
3092 | static int vino_v4l2_enumstd(struct vino_channel_settings *vcs, | |
3093 | struct v4l2_standard *s) | |
3094 | { | |
3095 | int index = s->index; | |
a637a114 LM |
3096 | int data_norm; |
3097 | ||
3098 | data_norm = vino_enum_data_norm(vcs, index); | |
d203a7ec RB |
3099 | dprintk("standard index = %d\n", index); |
3100 | ||
3101 | if (data_norm == VINO_DATA_NORM_NONE) | |
3102 | return -EINVAL; | |
3103 | ||
3104 | dprintk("standard name = %s\n", | |
3105 | vino_data_norms[data_norm].description); | |
3106 | ||
3107 | memset(s, 0, sizeof(struct v4l2_standard)); | |
3108 | s->index = index; | |
3109 | ||
3110 | s->id = vino_data_norms[data_norm].std; | |
3111 | s->frameperiod.numerator = 1; | |
3112 | s->frameperiod.denominator = | |
3113 | vino_data_norms[data_norm].fps_max; | |
3114 | s->framelines = | |
3115 | vino_data_norms[data_norm].framelines; | |
3116 | strcpy(s->name, | |
3117 | vino_data_norms[data_norm].description); | |
3118 | ||
3119 | return 0; | |
3120 | } | |
3121 | ||
a637a114 LM |
3122 | static int vino_v4l2_querystd(struct vino_channel_settings *vcs, |
3123 | v4l2_std_id *std) | |
3124 | { | |
3125 | unsigned long flags; | |
3126 | int err = 0; | |
3127 | ||
3128 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3129 | ||
3130 | switch (vcs->input) { | |
3131 | case VINO_INPUT_D1: | |
3132 | *std = vino_inputs[vcs->input].std; | |
3133 | break; | |
3134 | case VINO_INPUT_COMPOSITE: | |
3135 | case VINO_INPUT_SVIDEO: { | |
3136 | struct saa7191_status status; | |
3137 | ||
3138 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); | |
3139 | ||
3140 | if (status.signal) { | |
3141 | if (status.signal_60hz) { | |
3142 | *std = V4L2_STD_NTSC; | |
3143 | } else { | |
3144 | *std = V4L2_STD_PAL | V4L2_STD_SECAM; | |
3145 | } | |
3146 | } else { | |
3147 | *std = vino_inputs[vcs->input].std; | |
3148 | } | |
3149 | break; | |
3150 | } | |
3151 | default: | |
3152 | err = -EINVAL; | |
3153 | } | |
3154 | ||
3155 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
3156 | ||
3157 | return err; | |
3158 | } | |
3159 | ||
d203a7ec RB |
3160 | static int vino_v4l2_g_std(struct vino_channel_settings *vcs, |
3161 | v4l2_std_id *std) | |
3162 | { | |
a637a114 LM |
3163 | unsigned long flags; |
3164 | ||
3165 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3166 | ||
d203a7ec | 3167 | *std = vino_data_norms[vcs->data_norm].std; |
a637a114 LM |
3168 | dprintk("current standard = %d\n", vcs->data_norm); |
3169 | ||
3170 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3171 | |
3172 | return 0; | |
3173 | } | |
3174 | ||
3175 | static int vino_v4l2_s_std(struct vino_channel_settings *vcs, | |
3176 | v4l2_std_id *std) | |
3177 | { | |
a637a114 | 3178 | unsigned long flags; |
d203a7ec RB |
3179 | int ret = 0; |
3180 | ||
a637a114 LM |
3181 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3182 | ||
3183 | if (!vino_is_input_owner(vcs)) { | |
3184 | ret = -EBUSY; | |
3185 | goto out; | |
3186 | } | |
d203a7ec RB |
3187 | |
3188 | /* check if the standard is valid for the current input */ | |
a637a114 | 3189 | if ((*std) & vino_inputs[vcs->input].std) { |
d203a7ec RB |
3190 | dprintk("standard accepted\n"); |
3191 | ||
3192 | /* change the video norm for SAA7191 | |
3193 | * and accept NTSC for D1 (do nothing) */ | |
3194 | ||
3195 | if (vcs->input == VINO_INPUT_D1) | |
3196 | goto out; | |
3197 | ||
a637a114 LM |
3198 | if (((*std) & V4L2_STD_PAL) |
3199 | && ((*std) & V4L2_STD_NTSC) | |
3200 | && ((*std) & V4L2_STD_SECAM)) { | |
3201 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_AUTO_EXT, | |
3202 | &flags); | |
3203 | } else if ((*std) & V4L2_STD_PAL) { | |
3204 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, | |
3205 | &flags); | |
d203a7ec | 3206 | } else if ((*std) & V4L2_STD_NTSC) { |
a637a114 LM |
3207 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, |
3208 | &flags); | |
d203a7ec | 3209 | } else if ((*std) & V4L2_STD_SECAM) { |
a637a114 LM |
3210 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, |
3211 | &flags); | |
d203a7ec RB |
3212 | } else { |
3213 | ret = -EINVAL; | |
3214 | } | |
a637a114 LM |
3215 | |
3216 | if (ret) { | |
3217 | ret = -EINVAL; | |
3218 | } | |
d203a7ec RB |
3219 | } else { |
3220 | ret = -EINVAL; | |
3221 | } | |
3222 | ||
3223 | out: | |
a637a114 | 3224 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3225 | |
3226 | return ret; | |
3227 | } | |
3228 | ||
3229 | static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs, | |
3230 | struct v4l2_fmtdesc *fd) | |
3231 | { | |
3232 | enum v4l2_buf_type type = fd->type; | |
3233 | int index = fd->index; | |
3234 | dprintk("format index = %d\n", index); | |
3235 | ||
3236 | switch (fd->type) { | |
3237 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
3238 | if ((fd->index < 0) || | |
3239 | (fd->index >= VINO_DATA_FMT_COUNT)) | |
3240 | return -EINVAL; | |
3241 | dprintk("format name = %s\n", | |
3242 | vino_data_formats[index].description); | |
3243 | ||
3244 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); | |
3245 | fd->index = index; | |
3246 | fd->type = type; | |
3247 | fd->pixelformat = vino_data_formats[index].pixelformat; | |
3248 | strcpy(fd->description, vino_data_formats[index].description); | |
3249 | break; | |
3250 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3251 | default: | |
3252 | return -EINVAL; | |
3253 | } | |
3254 | ||
3255 | return 0; | |
3256 | } | |
3257 | ||
3258 | static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs, | |
3259 | struct v4l2_format *f) | |
3260 | { | |
3261 | struct vino_channel_settings tempvcs; | |
a637a114 | 3262 | unsigned long flags; |
d203a7ec RB |
3263 | |
3264 | switch (f->type) { | |
3265 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3266 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
3267 | ||
3268 | dprintk("requested: w = %d, h = %d\n", | |
3269 | pf->width, pf->height); | |
3270 | ||
a637a114 | 3271 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3272 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); |
a637a114 | 3273 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3274 | |
3275 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); | |
3276 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { | |
a637a114 | 3277 | tempvcs.data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3278 | pf->pixelformat = |
3279 | vino_data_formats[tempvcs.data_format]. | |
3280 | pixelformat; | |
3281 | } | |
3282 | ||
3283 | /* data format must be set before clipping/scaling */ | |
3284 | vino_set_scaling(&tempvcs, pf->width, pf->height); | |
3285 | ||
3286 | dprintk("data format = %s\n", | |
3287 | vino_data_formats[tempvcs.data_format].description); | |
3288 | ||
3289 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / | |
3290 | tempvcs.decimation; | |
3291 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3292 | tempvcs.decimation; | |
3293 | ||
3294 | pf->field = V4L2_FIELD_INTERLACED; | |
3295 | pf->bytesperline = tempvcs.line_size; | |
3296 | pf->sizeimage = tempvcs.line_size * | |
3297 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3298 | tempvcs.decimation; | |
3299 | pf->colorspace = | |
3300 | vino_data_formats[tempvcs.data_format].colorspace; | |
3301 | ||
3302 | pf->priv = 0; | |
3303 | break; | |
3304 | } | |
3305 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3306 | default: | |
3307 | return -EINVAL; | |
3308 | } | |
3309 | ||
3310 | return 0; | |
3311 | } | |
3312 | ||
3313 | static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs, | |
3314 | struct v4l2_format *f) | |
3315 | { | |
a637a114 LM |
3316 | unsigned long flags; |
3317 | ||
d203a7ec RB |
3318 | switch (f->type) { |
3319 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3320 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
a637a114 LM |
3321 | |
3322 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3323 | |
3324 | pf->width = (vcs->clipping.right - vcs->clipping.left) / | |
3325 | vcs->decimation; | |
3326 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / | |
3327 | vcs->decimation; | |
3328 | pf->pixelformat = | |
3329 | vino_data_formats[vcs->data_format].pixelformat; | |
3330 | ||
3331 | pf->field = V4L2_FIELD_INTERLACED; | |
3332 | pf->bytesperline = vcs->line_size; | |
3333 | pf->sizeimage = vcs->line_size * | |
3334 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3335 | vcs->decimation; | |
3336 | pf->colorspace = | |
3337 | vino_data_formats[vcs->data_format].colorspace; | |
3338 | ||
3339 | pf->priv = 0; | |
3340 | ||
a637a114 | 3341 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3342 | break; |
3343 | } | |
3344 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3345 | default: | |
3346 | return -EINVAL; | |
3347 | } | |
3348 | ||
3349 | return 0; | |
3350 | } | |
3351 | ||
3352 | static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs, | |
3353 | struct v4l2_format *f) | |
3354 | { | |
3355 | int data_format; | |
a637a114 | 3356 | unsigned long flags; |
d203a7ec RB |
3357 | |
3358 | switch (f->type) { | |
3359 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3360 | struct v4l2_pix_format *pf = &f->fmt.pix; | |
d203a7ec | 3361 | |
a637a114 | 3362 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3363 | |
3364 | data_format = vino_find_data_format(pf->pixelformat); | |
a637a114 | 3365 | |
d203a7ec | 3366 | if (data_format == VINO_DATA_FMT_NONE) { |
a637a114 | 3367 | vcs->data_format = VINO_DATA_FMT_GREY; |
d203a7ec RB |
3368 | pf->pixelformat = |
3369 | vino_data_formats[vcs->data_format]. | |
3370 | pixelformat; | |
3371 | } else { | |
3372 | vcs->data_format = data_format; | |
3373 | } | |
3374 | ||
3375 | /* data format must be set before clipping/scaling */ | |
3376 | vino_set_scaling(vcs, pf->width, pf->height); | |
3377 | ||
3378 | dprintk("data format = %s\n", | |
3379 | vino_data_formats[vcs->data_format].description); | |
3380 | ||
3381 | pf->width = vcs->clipping.right - vcs->clipping.left; | |
3382 | pf->height = vcs->clipping.bottom - vcs->clipping.top; | |
3383 | ||
3384 | pf->field = V4L2_FIELD_INTERLACED; | |
3385 | pf->bytesperline = vcs->line_size; | |
3386 | pf->sizeimage = vcs->line_size * | |
3387 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3388 | vcs->decimation; | |
3389 | pf->colorspace = | |
3390 | vino_data_formats[vcs->data_format].colorspace; | |
3391 | ||
3392 | pf->priv = 0; | |
3393 | ||
a637a114 | 3394 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3395 | break; |
3396 | } | |
3397 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3398 | default: | |
3399 | return -EINVAL; | |
3400 | } | |
3401 | ||
3402 | return 0; | |
3403 | } | |
3404 | ||
3405 | static int vino_v4l2_cropcap(struct vino_channel_settings *vcs, | |
3406 | struct v4l2_cropcap *ccap) | |
3407 | { | |
3408 | const struct vino_data_norm *norm; | |
a637a114 | 3409 | unsigned long flags; |
d203a7ec RB |
3410 | |
3411 | switch (ccap->type) { | |
3412 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 LM |
3413 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3414 | ||
d203a7ec | 3415 | norm = &vino_data_norms[vcs->data_norm]; |
a637a114 LM |
3416 | |
3417 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3418 | |
3419 | ccap->bounds.left = 0; | |
3420 | ccap->bounds.top = 0; | |
3421 | ccap->bounds.width = norm->width; | |
3422 | ccap->bounds.height = norm->height; | |
3423 | memcpy(&ccap->defrect, &ccap->bounds, | |
3424 | sizeof(struct v4l2_rect)); | |
3425 | ||
3426 | ccap->pixelaspect.numerator = 1; | |
3427 | ccap->pixelaspect.denominator = 1; | |
3428 | break; | |
3429 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3430 | default: | |
3431 | return -EINVAL; | |
3432 | } | |
3433 | ||
3434 | return 0; | |
3435 | } | |
3436 | ||
3437 | static int vino_v4l2_g_crop(struct vino_channel_settings *vcs, | |
3438 | struct v4l2_crop *c) | |
3439 | { | |
a637a114 LM |
3440 | unsigned long flags; |
3441 | ||
d203a7ec RB |
3442 | switch (c->type) { |
3443 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3444 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3445 | |
3446 | c->c.left = vcs->clipping.left; | |
3447 | c->c.top = vcs->clipping.top; | |
3448 | c->c.width = vcs->clipping.right - vcs->clipping.left; | |
3449 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; | |
3450 | ||
a637a114 | 3451 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3452 | break; |
3453 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3454 | default: | |
3455 | return -EINVAL; | |
3456 | } | |
3457 | ||
3458 | return 0; | |
3459 | } | |
3460 | ||
3461 | static int vino_v4l2_s_crop(struct vino_channel_settings *vcs, | |
3462 | struct v4l2_crop *c) | |
3463 | { | |
a637a114 LM |
3464 | unsigned long flags; |
3465 | ||
d203a7ec RB |
3466 | switch (c->type) { |
3467 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3468 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3469 | |
d203a7ec RB |
3470 | vino_set_clipping(vcs, c->c.left, c->c.top, |
3471 | c->c.width, c->c.height); | |
3472 | ||
a637a114 | 3473 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3474 | break; |
3475 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3476 | default: | |
3477 | return -EINVAL; | |
3478 | } | |
3479 | ||
3480 | return 0; | |
3481 | } | |
3482 | ||
3483 | static int vino_v4l2_g_parm(struct vino_channel_settings *vcs, | |
3484 | struct v4l2_streamparm *sp) | |
3485 | { | |
a637a114 LM |
3486 | unsigned long flags; |
3487 | ||
d203a7ec RB |
3488 | switch (sp->type) { |
3489 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3490 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3491 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
3492 | ||
3493 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
3494 | cp->timeperframe.numerator = 1; | |
3495 | ||
a637a114 LM |
3496 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3497 | ||
d203a7ec | 3498 | cp->timeperframe.denominator = vcs->fps; |
a637a114 LM |
3499 | |
3500 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3501 | |
3502 | // TODO: cp->readbuffers = xxx; | |
3503 | break; | |
3504 | } | |
3505 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3506 | default: | |
3507 | return -EINVAL; | |
3508 | } | |
3509 | ||
3510 | return 0; | |
3511 | } | |
3512 | ||
3513 | static int vino_v4l2_s_parm(struct vino_channel_settings *vcs, | |
3514 | struct v4l2_streamparm *sp) | |
3515 | { | |
a637a114 LM |
3516 | unsigned long flags; |
3517 | ||
d203a7ec RB |
3518 | switch (sp->type) { |
3519 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3520 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3521 | ||
a637a114 | 3522 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3523 | |
3524 | if ((cp->timeperframe.numerator == 0) || | |
3525 | (cp->timeperframe.denominator == 0)) { | |
3526 | /* reset framerate */ | |
3527 | vino_set_default_framerate(vcs); | |
3528 | } else { | |
3529 | vino_set_framerate(vcs, cp->timeperframe.denominator / | |
3530 | cp->timeperframe.numerator); | |
3531 | } | |
a637a114 LM |
3532 | |
3533 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3534 | |
3535 | // TODO: set buffers according to cp->readbuffers | |
3536 | break; | |
3537 | } | |
3538 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3539 | default: | |
3540 | return -EINVAL; | |
3541 | } | |
3542 | ||
3543 | return 0; | |
3544 | } | |
3545 | ||
3546 | static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs, | |
3547 | struct v4l2_requestbuffers *rb) | |
3548 | { | |
3549 | if (vcs->reading) | |
3550 | return -EBUSY; | |
3551 | ||
3552 | switch (rb->type) { | |
3553 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3554 | // TODO: check queue type | |
3555 | if (rb->memory != V4L2_MEMORY_MMAP) { | |
3556 | dprintk("type not mmap\n"); | |
3557 | return -EINVAL; | |
3558 | } | |
3559 | ||
d203a7ec RB |
3560 | dprintk("count = %d\n", rb->count); |
3561 | if (rb->count > 0) { | |
a637a114 LM |
3562 | if (vino_is_capturing(vcs)) { |
3563 | dprintk("busy, capturing\n"); | |
3564 | return -EBUSY; | |
3565 | } | |
3566 | ||
d203a7ec RB |
3567 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { |
3568 | dprintk("busy, buffers still mapped\n"); | |
3569 | return -EBUSY; | |
3570 | } else { | |
a637a114 | 3571 | vcs->streaming = 0; |
d203a7ec RB |
3572 | vino_queue_free(&vcs->fb_queue); |
3573 | vino_queue_init(&vcs->fb_queue, &rb->count); | |
3574 | } | |
3575 | } else { | |
a637a114 | 3576 | vcs->streaming = 0; |
d203a7ec RB |
3577 | vino_capture_stop(vcs); |
3578 | vino_queue_free(&vcs->fb_queue); | |
3579 | } | |
3580 | break; | |
3581 | } | |
3582 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3583 | default: | |
3584 | return -EINVAL; | |
3585 | } | |
3586 | ||
3587 | return 0; | |
3588 | } | |
3589 | ||
3590 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, | |
3591 | struct vino_framebuffer *fb, | |
3592 | struct v4l2_buffer *b) | |
3593 | { | |
3594 | if (vino_queue_outgoing_contains(&vcs->fb_queue, | |
3595 | fb->id)) { | |
3596 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; | |
3597 | b->flags |= V4L2_BUF_FLAG_DONE; | |
3598 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, | |
3599 | fb->id)) { | |
3600 | b->flags &= ~V4L2_BUF_FLAG_DONE; | |
3601 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
3602 | } else { | |
3603 | b->flags &= ~(V4L2_BUF_FLAG_DONE | | |
3604 | V4L2_BUF_FLAG_QUEUED); | |
3605 | } | |
3606 | ||
3607 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); | |
3608 | ||
3609 | if (fb->map_count > 0) | |
3610 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
3611 | ||
3612 | b->index = fb->id; | |
3613 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? | |
3614 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; | |
3615 | b->m.offset = fb->offset; | |
3616 | b->bytesused = fb->data_size; | |
3617 | b->length = fb->size; | |
3618 | b->field = V4L2_FIELD_INTERLACED; | |
3619 | b->sequence = fb->frame_counter; | |
3620 | memcpy(&b->timestamp, &fb->timestamp, | |
3621 | sizeof(struct timeval)); | |
3622 | // b->input ? | |
3623 | ||
3624 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", | |
3625 | fb->id, fb->size, fb->data_size, fb->offset); | |
3626 | } | |
3627 | ||
3628 | static int vino_v4l2_querybuf(struct vino_channel_settings *vcs, | |
3629 | struct v4l2_buffer *b) | |
3630 | { | |
3631 | if (vcs->reading) | |
3632 | return -EBUSY; | |
3633 | ||
3634 | switch (b->type) { | |
3635 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3636 | struct vino_framebuffer *fb; | |
3637 | ||
3638 | // TODO: check queue type | |
3639 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { | |
3640 | dprintk("invalid index = %d\n", | |
3641 | b->index); | |
3642 | return -EINVAL; | |
3643 | } | |
3644 | ||
3645 | fb = vino_queue_get_buffer(&vcs->fb_queue, | |
3646 | b->index); | |
3647 | if (fb == NULL) { | |
3648 | dprintk("vino_queue_get_buffer() failed"); | |
3649 | return -EINVAL; | |
3650 | } | |
3651 | ||
3652 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3653 | break; | |
3654 | } | |
3655 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3656 | default: | |
3657 | return -EINVAL; | |
3658 | } | |
3659 | ||
3660 | return 0; | |
3661 | } | |
3662 | ||
3663 | static int vino_v4l2_qbuf(struct vino_channel_settings *vcs, | |
3664 | struct v4l2_buffer *b) | |
3665 | { | |
3666 | if (vcs->reading) | |
3667 | return -EBUSY; | |
3668 | ||
3669 | switch (b->type) { | |
3670 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3671 | struct vino_framebuffer *fb; | |
3672 | int ret; | |
3673 | ||
3674 | // TODO: check queue type | |
3675 | if (b->memory != V4L2_MEMORY_MMAP) { | |
3676 | dprintk("type not mmap\n"); | |
3677 | return -EINVAL; | |
3678 | } | |
3679 | ||
3680 | fb = vino_capture_enqueue(vcs, b->index); | |
3681 | if (fb == NULL) | |
3682 | return -EINVAL; | |
3683 | ||
3684 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3685 | ||
3686 | if (vcs->streaming) { | |
3687 | ret = vino_capture_next(vcs, 1); | |
3688 | if (ret) | |
3689 | return ret; | |
3690 | } | |
3691 | break; | |
3692 | } | |
3693 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3694 | default: | |
3695 | return -EINVAL; | |
3696 | } | |
3697 | ||
3698 | return 0; | |
3699 | } | |
3700 | ||
3701 | static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs, | |
3702 | struct v4l2_buffer *b, | |
3703 | unsigned int nonblocking) | |
3704 | { | |
3705 | if (vcs->reading) | |
3706 | return -EBUSY; | |
3707 | ||
3708 | switch (b->type) { | |
3709 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3710 | struct vino_framebuffer *fb; | |
3711 | unsigned int incoming, outgoing; | |
3712 | int err; | |
3713 | ||
3714 | // TODO: check queue type | |
3715 | ||
3716 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3717 | if (err) { | |
3718 | dprintk("vino_queue_get_incoming() failed\n"); | |
a637a114 | 3719 | return -EINVAL; |
d203a7ec RB |
3720 | } |
3721 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); | |
3722 | if (err) { | |
3723 | dprintk("vino_queue_get_outgoing() failed\n"); | |
a637a114 | 3724 | return -EINVAL; |
d203a7ec RB |
3725 | } |
3726 | ||
3727 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); | |
3728 | ||
3729 | if (outgoing == 0) { | |
3730 | if (incoming == 0) { | |
3731 | dprintk("no incoming or outgoing buffers\n"); | |
3732 | return -EINVAL; | |
3733 | } | |
3734 | if (nonblocking) { | |
3735 | dprintk("non-blocking I/O was selected and " | |
3736 | "there are no buffers to dequeue\n"); | |
3737 | return -EAGAIN; | |
3738 | } | |
3739 | ||
3740 | err = vino_wait_for_frame(vcs); | |
3741 | if (err) { | |
3742 | err = vino_wait_for_frame(vcs); | |
3743 | if (err) { | |
a637a114 LM |
3744 | /* interrupted or |
3745 | * no frames captured because | |
3746 | * of frame skipping */ | |
3747 | // vino_capture_failed(vcs); | |
d203a7ec RB |
3748 | return -EIO; |
3749 | } | |
3750 | } | |
3751 | } | |
3752 | ||
3753 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); | |
3754 | if (fb == NULL) { | |
3755 | dprintk("vino_queue_remove() failed\n"); | |
3756 | return -EINVAL; | |
3757 | } | |
3758 | ||
3759 | err = vino_check_buffer(vcs, fb); | |
a637a114 LM |
3760 | |
3761 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3762 | ||
d203a7ec RB |
3763 | if (err) |
3764 | return -EIO; | |
3765 | ||
d203a7ec RB |
3766 | break; |
3767 | } | |
3768 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3769 | default: | |
3770 | return -EINVAL; | |
3771 | } | |
3772 | ||
3773 | return 0; | |
3774 | } | |
3775 | ||
3776 | static int vino_v4l2_streamon(struct vino_channel_settings *vcs) | |
3777 | { | |
3778 | unsigned int incoming; | |
3779 | int ret; | |
3780 | if (vcs->reading) | |
3781 | return -EBUSY; | |
3782 | ||
3783 | if (vcs->streaming) | |
3784 | return 0; | |
3785 | ||
3786 | // TODO: check queue type | |
3787 | ||
3788 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { | |
3789 | dprintk("no buffers allocated\n"); | |
3790 | return -EINVAL; | |
3791 | } | |
3792 | ||
3793 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3794 | if (ret) { | |
3795 | dprintk("vino_queue_get_incoming() failed\n"); | |
3796 | return -EINVAL; | |
3797 | } | |
3798 | ||
3799 | vcs->streaming = 1; | |
3800 | ||
3801 | if (incoming > 0) { | |
3802 | ret = vino_capture_next(vcs, 1); | |
3803 | if (ret) { | |
3804 | vcs->streaming = 0; | |
3805 | ||
3806 | dprintk("couldn't start capture\n"); | |
3807 | return -EINVAL; | |
3808 | } | |
3809 | } | |
3810 | ||
3811 | return 0; | |
3812 | } | |
3813 | ||
3814 | static int vino_v4l2_streamoff(struct vino_channel_settings *vcs) | |
3815 | { | |
3816 | if (vcs->reading) | |
3817 | return -EBUSY; | |
3818 | ||
3819 | if (!vcs->streaming) | |
3820 | return 0; | |
3821 | ||
d203a7ec | 3822 | vcs->streaming = 0; |
a637a114 | 3823 | vino_capture_stop(vcs); |
d203a7ec RB |
3824 | |
3825 | return 0; | |
3826 | } | |
3827 | ||
3828 | static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs, | |
3829 | struct v4l2_queryctrl *queryctrl) | |
3830 | { | |
a637a114 | 3831 | unsigned long flags; |
d203a7ec RB |
3832 | int i; |
3833 | int err = 0; | |
3834 | ||
a637a114 | 3835 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3836 | |
3837 | switch (vcs->input) { | |
3838 | case VINO_INPUT_D1: | |
3839 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3840 | if (vino_indycam_v4l2_controls[i].id == | |
3841 | queryctrl->id) { | |
3842 | memcpy(queryctrl, | |
3843 | &vino_indycam_v4l2_controls[i], | |
3844 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3845 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3846 | goto found; |
3847 | } | |
3848 | } | |
3849 | ||
3850 | err = -EINVAL; | |
3851 | break; | |
3852 | case VINO_INPUT_COMPOSITE: | |
3853 | case VINO_INPUT_SVIDEO: | |
3854 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3855 | if (vino_saa7191_v4l2_controls[i].id == | |
3856 | queryctrl->id) { | |
3857 | memcpy(queryctrl, | |
3858 | &vino_saa7191_v4l2_controls[i], | |
3859 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3860 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3861 | goto found; |
3862 | } | |
3863 | } | |
3864 | ||
3865 | err = -EINVAL; | |
3866 | break; | |
3867 | default: | |
3868 | err = -EINVAL; | |
3869 | } | |
3870 | ||
3871 | found: | |
a637a114 | 3872 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3873 | |
3874 | return err; | |
3875 | } | |
3876 | ||
3877 | static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs, | |
3878 | struct v4l2_control *control) | |
3879 | { | |
a637a114 LM |
3880 | unsigned long flags; |
3881 | int i; | |
d203a7ec RB |
3882 | int err = 0; |
3883 | ||
a637a114 | 3884 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3885 | |
3886 | switch (vcs->input) { | |
a637a114 LM |
3887 | case VINO_INPUT_D1: { |
3888 | struct indycam_control indycam_ctrl; | |
d203a7ec | 3889 | |
a637a114 LM |
3890 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3891 | if (vino_indycam_v4l2_controls[i].id == | |
3892 | control->id) { | |
3893 | goto found1; | |
3894 | } | |
3895 | } | |
3896 | ||
3897 | err = -EINVAL; | |
3898 | goto out; | |
3899 | ||
3900 | found1: | |
3901 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3902 | ||
3903 | err = i2c_camera_command(DECODER_INDYCAM_GET_CONTROL, | |
3904 | &indycam_ctrl); | |
3905 | if (err) { | |
d203a7ec | 3906 | err = -EINVAL; |
a637a114 | 3907 | goto out; |
d203a7ec | 3908 | } |
a637a114 LM |
3909 | |
3910 | control->value = indycam_ctrl.value; | |
d203a7ec | 3911 | break; |
a637a114 | 3912 | } |
d203a7ec | 3913 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3914 | case VINO_INPUT_SVIDEO: { |
3915 | struct saa7191_control saa7191_ctrl; | |
d203a7ec | 3916 | |
a637a114 LM |
3917 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
3918 | if (vino_saa7191_v4l2_controls[i].id == | |
3919 | control->id) { | |
3920 | goto found2; | |
3921 | } | |
3922 | } | |
3923 | ||
3924 | err = -EINVAL; | |
3925 | goto out; | |
3926 | ||
3927 | found2: | |
3928 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
3929 | ||
3930 | err = i2c_decoder_command(DECODER_SAA7191_GET_CONTROL, | |
3931 | &saa7191_ctrl); | |
3932 | if (err) { | |
d203a7ec | 3933 | err = -EINVAL; |
a637a114 | 3934 | goto out; |
d203a7ec | 3935 | } |
a637a114 LM |
3936 | |
3937 | control->value = saa7191_ctrl.value; | |
d203a7ec | 3938 | break; |
a637a114 | 3939 | } |
d203a7ec RB |
3940 | default: |
3941 | err = -EINVAL; | |
3942 | } | |
3943 | ||
a637a114 LM |
3944 | out: |
3945 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3946 | |
3947 | return err; | |
3948 | } | |
3949 | ||
3950 | static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs, | |
3951 | struct v4l2_control *control) | |
3952 | { | |
a637a114 | 3953 | unsigned long flags; |
d203a7ec RB |
3954 | int i; |
3955 | int err = 0; | |
3956 | ||
a637a114 LM |
3957 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3958 | ||
3959 | if (!vino_is_input_owner(vcs)) { | |
3960 | err = -EBUSY; | |
3961 | goto out; | |
3962 | } | |
d203a7ec RB |
3963 | |
3964 | switch (vcs->input) { | |
a637a114 LM |
3965 | case VINO_INPUT_D1: { |
3966 | struct indycam_control indycam_ctrl; | |
3967 | ||
d203a7ec RB |
3968 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
3969 | if (vino_indycam_v4l2_controls[i].id == | |
3970 | control->id) { | |
3971 | if ((control->value >= | |
3972 | vino_indycam_v4l2_controls[i].minimum) | |
3973 | && (control->value <= | |
3974 | vino_indycam_v4l2_controls[i]. | |
3975 | maximum)) { | |
a637a114 | 3976 | goto found1; |
d203a7ec RB |
3977 | } else { |
3978 | err = -ERANGE; | |
a637a114 | 3979 | goto out; |
d203a7ec RB |
3980 | } |
3981 | } | |
3982 | } | |
a637a114 | 3983 | |
d203a7ec | 3984 | err = -EINVAL; |
a637a114 | 3985 | goto out; |
d203a7ec | 3986 | |
a637a114 LM |
3987 | found1: |
3988 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; | |
3989 | indycam_ctrl.value = control->value; | |
d203a7ec | 3990 | |
a637a114 LM |
3991 | err = i2c_camera_command(DECODER_INDYCAM_SET_CONTROL, |
3992 | &indycam_ctrl); | |
3993 | if (err) | |
3994 | err = -EINVAL; | |
d203a7ec | 3995 | break; |
a637a114 | 3996 | } |
d203a7ec | 3997 | case VINO_INPUT_COMPOSITE: |
a637a114 LM |
3998 | case VINO_INPUT_SVIDEO: { |
3999 | struct saa7191_control saa7191_ctrl; | |
4000 | ||
d203a7ec RB |
4001 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
4002 | if (vino_saa7191_v4l2_controls[i].id == | |
4003 | control->id) { | |
4004 | if ((control->value >= | |
4005 | vino_saa7191_v4l2_controls[i].minimum) | |
4006 | && (control->value <= | |
4007 | vino_saa7191_v4l2_controls[i]. | |
4008 | maximum)) { | |
a637a114 | 4009 | goto found2; |
d203a7ec RB |
4010 | } else { |
4011 | err = -ERANGE; | |
a637a114 | 4012 | goto out; |
d203a7ec RB |
4013 | } |
4014 | } | |
4015 | } | |
4016 | err = -EINVAL; | |
a637a114 | 4017 | goto out; |
d203a7ec | 4018 | |
a637a114 LM |
4019 | found2: |
4020 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; | |
4021 | saa7191_ctrl.value = control->value; | |
d203a7ec | 4022 | |
a637a114 LM |
4023 | err = i2c_decoder_command(DECODER_SAA7191_SET_CONTROL, |
4024 | &saa7191_ctrl); | |
4025 | if (err) | |
4026 | err = -EINVAL; | |
d203a7ec | 4027 | break; |
a637a114 | 4028 | } |
d203a7ec RB |
4029 | default: |
4030 | err = -EINVAL; | |
4031 | } | |
4032 | ||
a637a114 LM |
4033 | out: |
4034 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
4035 | |
4036 | return err; | |
4037 | } | |
4038 | ||
4039 | /* File operations */ | |
4040 | ||
4041 | static int vino_open(struct inode *inode, struct file *file) | |
4042 | { | |
4043 | struct video_device *dev = video_devdata(file); | |
4044 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4045 | int ret = 0; | |
4046 | dprintk("open(): channel = %c\n", | |
4047 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); | |
4048 | ||
3593cab5 | 4049 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4050 | |
4051 | if (vcs->users) { | |
4052 | dprintk("open(): driver busy\n"); | |
4053 | ret = -EBUSY; | |
4054 | goto out; | |
4055 | } | |
4056 | ||
4057 | ret = vino_acquire_input(vcs); | |
4058 | if (ret) { | |
4059 | dprintk("open(): vino_acquire_input() failed\n"); | |
4060 | goto out; | |
4061 | } | |
4062 | ||
4063 | vcs->users++; | |
4064 | ||
4065 | out: | |
3593cab5 | 4066 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4067 | |
4068 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); | |
4069 | ||
4070 | return ret; | |
4071 | } | |
4072 | ||
4073 | static int vino_close(struct inode *inode, struct file *file) | |
4074 | { | |
4075 | struct video_device *dev = video_devdata(file); | |
4076 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4077 | dprintk("close():\n"); | |
4078 | ||
3593cab5 | 4079 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
4080 | |
4081 | vcs->users--; | |
4082 | ||
4083 | if (!vcs->users) { | |
4084 | vino_release_input(vcs); | |
4085 | ||
4086 | /* stop DMA and free buffers */ | |
4087 | vino_capture_stop(vcs); | |
4088 | vino_queue_free(&vcs->fb_queue); | |
4089 | } | |
4090 | ||
3593cab5 | 4091 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4092 | |
4093 | return 0; | |
4094 | } | |
4095 | ||
4096 | static void vino_vm_open(struct vm_area_struct *vma) | |
4097 | { | |
4098 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4099 | ||
4100 | fb->map_count++; | |
4101 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); | |
4102 | } | |
4103 | ||
4104 | static void vino_vm_close(struct vm_area_struct *vma) | |
4105 | { | |
4106 | struct vino_framebuffer *fb = vma->vm_private_data; | |
4107 | ||
4108 | fb->map_count--; | |
4109 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); | |
4110 | } | |
4111 | ||
4112 | static struct vm_operations_struct vino_vm_ops = { | |
4113 | .open = vino_vm_open, | |
4114 | .close = vino_vm_close, | |
4115 | }; | |
4116 | ||
4117 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) | |
4118 | { | |
4119 | struct video_device *dev = video_devdata(file); | |
4120 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4121 | ||
4122 | unsigned long start = vma->vm_start; | |
4123 | unsigned long size = vma->vm_end - vma->vm_start; | |
4124 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; | |
4125 | ||
4126 | struct vino_framebuffer *fb = NULL; | |
4127 | unsigned int i, length; | |
4128 | int ret = 0; | |
4129 | ||
4130 | dprintk("mmap():\n"); | |
4131 | ||
4132 | // TODO: reject mmap if already mapped | |
4133 | ||
3593cab5 | 4134 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4135 | return -EINTR; |
4136 | ||
4137 | if (vcs->reading) { | |
4138 | ret = -EBUSY; | |
4139 | goto out; | |
4140 | } | |
4141 | ||
4142 | // TODO: check queue type | |
4143 | ||
4144 | if (!(vma->vm_flags & VM_WRITE)) { | |
4145 | dprintk("mmap(): app bug: PROT_WRITE please\n"); | |
4146 | ret = -EINVAL; | |
4147 | goto out; | |
4148 | } | |
4149 | if (!(vma->vm_flags & VM_SHARED)) { | |
4150 | dprintk("mmap(): app bug: MAP_SHARED please\n"); | |
4151 | ret = -EINVAL; | |
4152 | goto out; | |
4153 | } | |
4154 | ||
4155 | /* find the correct buffer using offset */ | |
4156 | length = vino_queue_get_length(&vcs->fb_queue); | |
4157 | if (length == 0) { | |
4158 | dprintk("mmap(): queue not initialized\n"); | |
4159 | ret = -EINVAL; | |
4160 | goto out; | |
4161 | } | |
4162 | ||
4163 | for (i = 0; i < length; i++) { | |
4164 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); | |
4165 | if (fb == NULL) { | |
4166 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); | |
4167 | ret = -EINVAL; | |
4168 | goto out; | |
4169 | } | |
4170 | ||
4171 | if (fb->offset == offset) | |
4172 | goto found; | |
4173 | } | |
4174 | ||
4175 | dprintk("mmap(): invalid offset = %lu\n", offset); | |
4176 | ret = -EINVAL; | |
4177 | goto out; | |
4178 | ||
4179 | found: | |
4180 | dprintk("mmap(): buffer = %d\n", i); | |
4181 | ||
4182 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { | |
4183 | dprintk("mmap(): failed: size = %lu > %lu\n", | |
4184 | size, fb->desc_table.page_count * PAGE_SIZE); | |
4185 | ret = -EINVAL; | |
4186 | goto out; | |
4187 | } | |
4188 | ||
4189 | for (i = 0; i < fb->desc_table.page_count; i++) { | |
4190 | unsigned long pfn = | |
4191 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> | |
4192 | PAGE_SHIFT; | |
4193 | ||
4194 | if (size < PAGE_SIZE) | |
4195 | break; | |
4196 | ||
4197 | // protection was: PAGE_READONLY | |
4198 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, | |
4199 | vma->vm_page_prot)) { | |
4200 | dprintk("mmap(): remap_pfn_range() failed\n"); | |
4201 | ret = -EAGAIN; | |
4202 | goto out; | |
4203 | } | |
4204 | ||
4205 | start += PAGE_SIZE; | |
4206 | size -= PAGE_SIZE; | |
4207 | } | |
4208 | ||
4209 | fb->map_count = 1; | |
4210 | ||
4211 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; | |
4212 | vma->vm_flags &= ~VM_IO; | |
4213 | vma->vm_private_data = fb; | |
4214 | vma->vm_file = file; | |
4215 | vma->vm_ops = &vino_vm_ops; | |
4216 | ||
4217 | out: | |
3593cab5 | 4218 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4219 | |
4220 | return ret; | |
4221 | } | |
4222 | ||
4223 | static unsigned int vino_poll(struct file *file, poll_table *pt) | |
4224 | { | |
4225 | struct video_device *dev = video_devdata(file); | |
4226 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4227 | unsigned int outgoing; | |
4228 | unsigned int ret = 0; | |
4229 | ||
4230 | // lock mutex (?) | |
4231 | // TODO: this has to be corrected for different read modes | |
4232 | ||
4233 | dprintk("poll():\n"); | |
4234 | ||
4235 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4236 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4237 | ret = POLLERR; | |
4238 | goto error; | |
4239 | } | |
4240 | if (outgoing > 0) | |
4241 | goto over; | |
4242 | ||
4243 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); | |
4244 | ||
4245 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4246 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4247 | ret = POLLERR; | |
4248 | goto error; | |
4249 | } | |
4250 | ||
4251 | over: | |
4252 | dprintk("poll(): data %savailable\n", | |
4253 | (outgoing > 0) ? "" : "not "); | |
a637a114 LM |
4254 | |
4255 | if (outgoing > 0) | |
d203a7ec | 4256 | ret = POLLIN | POLLRDNORM; |
d203a7ec RB |
4257 | |
4258 | error: | |
4259 | ||
4260 | return ret; | |
4261 | } | |
4262 | ||
4263 | static int vino_do_ioctl(struct inode *inode, struct file *file, | |
4264 | unsigned int cmd, void *arg) | |
4265 | { | |
4266 | struct video_device *dev = video_devdata(file); | |
4267 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4268 | ||
a637a114 | 4269 | #ifdef VINO_DEBUG |
d203a7ec RB |
4270 | switch (_IOC_TYPE(cmd)) { |
4271 | case 'v': | |
4272 | dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd); | |
4273 | break; | |
4274 | case 'V': | |
4275 | dprintk("ioctl(): V4L2 %s (0x%08x)\n", | |
4276 | v4l2_ioctl_names[_IOC_NR(cmd)], cmd); | |
4277 | break; | |
4278 | default: | |
4279 | dprintk("ioctl(): unsupported command 0x%08x\n", cmd); | |
4280 | } | |
a637a114 | 4281 | #endif |
d203a7ec RB |
4282 | |
4283 | switch (cmd) { | |
d203a7ec RB |
4284 | /* V4L2 interface */ |
4285 | case VIDIOC_QUERYCAP: { | |
4286 | vino_v4l2_querycap(arg); | |
4287 | break; | |
4288 | } | |
4289 | case VIDIOC_ENUMINPUT: { | |
4290 | return vino_v4l2_enuminput(vcs, arg); | |
4291 | } | |
4292 | case VIDIOC_G_INPUT: { | |
4293 | return vino_v4l2_g_input(vcs, arg); | |
4294 | } | |
4295 | case VIDIOC_S_INPUT: { | |
4296 | return vino_v4l2_s_input(vcs, arg); | |
4297 | } | |
4298 | case VIDIOC_ENUMSTD: { | |
4299 | return vino_v4l2_enumstd(vcs, arg); | |
4300 | } | |
a637a114 LM |
4301 | case VIDIOC_QUERYSTD: { |
4302 | return vino_v4l2_querystd(vcs, arg); | |
4303 | } | |
d203a7ec RB |
4304 | case VIDIOC_G_STD: { |
4305 | return vino_v4l2_g_std(vcs, arg); | |
4306 | } | |
4307 | case VIDIOC_S_STD: { | |
4308 | return vino_v4l2_s_std(vcs, arg); | |
4309 | } | |
4310 | case VIDIOC_ENUM_FMT: { | |
4311 | return vino_v4l2_enum_fmt(vcs, arg); | |
4312 | } | |
4313 | case VIDIOC_TRY_FMT: { | |
4314 | return vino_v4l2_try_fmt(vcs, arg); | |
4315 | } | |
4316 | case VIDIOC_G_FMT: { | |
4317 | return vino_v4l2_g_fmt(vcs, arg); | |
4318 | } | |
4319 | case VIDIOC_S_FMT: { | |
4320 | return vino_v4l2_s_fmt(vcs, arg); | |
4321 | } | |
4322 | case VIDIOC_CROPCAP: { | |
4323 | return vino_v4l2_cropcap(vcs, arg); | |
4324 | } | |
4325 | case VIDIOC_G_CROP: { | |
4326 | return vino_v4l2_g_crop(vcs, arg); | |
4327 | } | |
4328 | case VIDIOC_S_CROP: { | |
4329 | return vino_v4l2_s_crop(vcs, arg); | |
4330 | } | |
4331 | case VIDIOC_G_PARM: { | |
4332 | return vino_v4l2_g_parm(vcs, arg); | |
4333 | } | |
4334 | case VIDIOC_S_PARM: { | |
4335 | return vino_v4l2_s_parm(vcs, arg); | |
4336 | } | |
4337 | case VIDIOC_REQBUFS: { | |
4338 | return vino_v4l2_reqbufs(vcs, arg); | |
4339 | } | |
4340 | case VIDIOC_QUERYBUF: { | |
4341 | return vino_v4l2_querybuf(vcs, arg); | |
4342 | } | |
4343 | case VIDIOC_QBUF: { | |
4344 | return vino_v4l2_qbuf(vcs, arg); | |
4345 | } | |
4346 | case VIDIOC_DQBUF: { | |
4347 | return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK); | |
4348 | } | |
4349 | case VIDIOC_STREAMON: { | |
4350 | return vino_v4l2_streamon(vcs); | |
4351 | } | |
4352 | case VIDIOC_STREAMOFF: { | |
4353 | return vino_v4l2_streamoff(vcs); | |
4354 | } | |
4355 | case VIDIOC_QUERYCTRL: { | |
4356 | return vino_v4l2_queryctrl(vcs, arg); | |
4357 | } | |
4358 | case VIDIOC_G_CTRL: { | |
4359 | return vino_v4l2_g_ctrl(vcs, arg); | |
4360 | } | |
4361 | case VIDIOC_S_CTRL: { | |
4362 | return vino_v4l2_s_ctrl(vcs, arg); | |
4363 | } | |
4364 | default: | |
4365 | return -ENOIOCTLCMD; | |
4366 | } | |
4367 | ||
4368 | return 0; | |
4369 | } | |
4370 | ||
4371 | static int vino_ioctl(struct inode *inode, struct file *file, | |
4372 | unsigned int cmd, unsigned long arg) | |
4373 | { | |
4374 | struct video_device *dev = video_devdata(file); | |
4375 | struct vino_channel_settings *vcs = video_get_drvdata(dev); | |
4376 | int ret; | |
4377 | ||
3593cab5 | 4378 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4379 | return -EINTR; |
4380 | ||
4381 | ret = video_usercopy(inode, file, cmd, arg, vino_do_ioctl); | |
4382 | ||
3593cab5 | 4383 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4384 | |
4385 | return ret; | |
4386 | } | |
4387 | ||
4388 | /* Initialization and cleanup */ | |
4389 | ||
4390 | // __initdata | |
4391 | static int vino_init_stage = 0; | |
4392 | ||
fa027c2a | 4393 | static const struct file_operations vino_fops = { |
d203a7ec RB |
4394 | .owner = THIS_MODULE, |
4395 | .open = vino_open, | |
4396 | .release = vino_close, | |
4397 | .ioctl = vino_ioctl, | |
4398 | .mmap = vino_mmap, | |
4399 | .poll = vino_poll, | |
4400 | .llseek = no_llseek, | |
4401 | }; | |
4402 | ||
4403 | static struct video_device v4l_device_template = { | |
4404 | .name = "NOT SET", | |
4405 | //.type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE | | |
4406 | // VID_TYPE_CLIPPING | VID_TYPE_SCALES, VID_TYPE_OVERLAY | |
d203a7ec RB |
4407 | .fops = &vino_fops, |
4408 | .minor = -1, | |
4409 | }; | |
4410 | ||
4411 | static void vino_module_cleanup(int stage) | |
4412 | { | |
4413 | switch(stage) { | |
4414 | case 10: | |
4415 | video_unregister_device(vino_drvdata->b.v4l_device); | |
4416 | vino_drvdata->b.v4l_device = NULL; | |
4417 | case 9: | |
4418 | video_unregister_device(vino_drvdata->a.v4l_device); | |
4419 | vino_drvdata->a.v4l_device = NULL; | |
4420 | case 8: | |
4421 | vino_i2c_del_bus(); | |
4422 | case 7: | |
4423 | free_irq(SGI_VINO_IRQ, NULL); | |
4424 | case 6: | |
4425 | if (vino_drvdata->b.v4l_device) { | |
4426 | video_device_release(vino_drvdata->b.v4l_device); | |
4427 | vino_drvdata->b.v4l_device = NULL; | |
4428 | } | |
4429 | case 5: | |
4430 | if (vino_drvdata->a.v4l_device) { | |
4431 | video_device_release(vino_drvdata->a.v4l_device); | |
4432 | vino_drvdata->a.v4l_device = NULL; | |
4433 | } | |
4434 | case 4: | |
4435 | /* all entries in dma_cpu dummy table have the same address */ | |
4436 | dma_unmap_single(NULL, | |
4437 | vino_drvdata->dummy_desc_table.dma_cpu[0], | |
4438 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4439 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT | |
4440 | * sizeof(dma_addr_t), | |
4441 | (void *)vino_drvdata-> | |
4442 | dummy_desc_table.dma_cpu, | |
4443 | vino_drvdata->dummy_desc_table.dma); | |
4444 | case 3: | |
4445 | free_page(vino_drvdata->dummy_page); | |
4446 | case 2: | |
4447 | kfree(vino_drvdata); | |
4448 | case 1: | |
4449 | iounmap(vino); | |
4450 | case 0: | |
4451 | break; | |
4452 | default: | |
4453 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", | |
4454 | stage); | |
4455 | } | |
4456 | } | |
4457 | ||
4458 | static int vino_probe(void) | |
4459 | { | |
4460 | unsigned long rev_id; | |
4461 | ||
4462 | if (ip22_is_fullhouse()) { | |
4463 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); | |
4464 | return -ENODEV; | |
4465 | } | |
4466 | ||
4467 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { | |
4468 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); | |
4469 | return -ENODEV; | |
4470 | } | |
4471 | ||
4472 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); | |
4473 | if (!vino) { | |
4474 | printk(KERN_ERR "VINO: ioremap() failed\n"); | |
4475 | return -EIO; | |
4476 | } | |
4477 | vino_init_stage++; | |
4478 | ||
4479 | if (get_dbe(rev_id, &(vino->rev_id))) { | |
4480 | printk(KERN_ERR "Failed to read VINO revision register\n"); | |
4481 | vino_module_cleanup(vino_init_stage); | |
4482 | return -ENODEV; | |
4483 | } | |
4484 | ||
4485 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { | |
4486 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", | |
4487 | rev_id); | |
4488 | vino_module_cleanup(vino_init_stage); | |
4489 | return -ENODEV; | |
4490 | } | |
4491 | ||
a637a114 | 4492 | printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); |
d203a7ec RB |
4493 | |
4494 | return 0; | |
4495 | } | |
4496 | ||
4497 | static int vino_init(void) | |
4498 | { | |
4499 | dma_addr_t dma_dummy_address; | |
4500 | int i; | |
4501 | ||
7408187d | 4502 | vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); |
d203a7ec RB |
4503 | if (!vino_drvdata) { |
4504 | vino_module_cleanup(vino_init_stage); | |
4505 | return -ENOMEM; | |
4506 | } | |
d203a7ec RB |
4507 | vino_init_stage++; |
4508 | ||
4509 | /* create a dummy dma descriptor */ | |
4510 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
4511 | if (!vino_drvdata->dummy_page) { | |
4512 | vino_module_cleanup(vino_init_stage); | |
4513 | return -ENOMEM; | |
4514 | } | |
4515 | vino_init_stage++; | |
4516 | ||
4517 | // TODO: use page_count in dummy_desc_table | |
4518 | ||
4519 | vino_drvdata->dummy_desc_table.dma_cpu = | |
4520 | dma_alloc_coherent(NULL, | |
4521 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), | |
4522 | &vino_drvdata->dummy_desc_table.dma, | |
4523 | GFP_KERNEL | GFP_DMA); | |
4524 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { | |
4525 | vino_module_cleanup(vino_init_stage); | |
4526 | return -ENOMEM; | |
4527 | } | |
4528 | vino_init_stage++; | |
4529 | ||
4530 | dma_dummy_address = dma_map_single(NULL, | |
4531 | (void *)vino_drvdata->dummy_page, | |
4532 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4533 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { | |
4534 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; | |
4535 | } | |
4536 | ||
4537 | /* initialize VINO */ | |
4538 | ||
4539 | vino->control = 0; | |
4540 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4541 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4542 | udelay(VINO_DESC_FETCH_DELAY); | |
4543 | ||
4544 | vino->intr_status = 0; | |
4545 | ||
4546 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4547 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4548 | ||
4549 | return 0; | |
4550 | } | |
4551 | ||
4552 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, | |
4553 | unsigned int channel, const char *name) | |
4554 | { | |
4555 | vcs->channel = channel; | |
4556 | vcs->input = VINO_INPUT_NONE; | |
4557 | vcs->alpha = 0; | |
4558 | vcs->users = 0; | |
4559 | vcs->data_format = VINO_DATA_FMT_GREY; | |
4560 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
4561 | vcs->decimation = 1; | |
4562 | vino_set_default_clipping(vcs); | |
4563 | vino_set_default_framerate(vcs); | |
4564 | ||
4565 | vcs->capturing = 0; | |
4566 | ||
3593cab5 | 4567 | mutex_init(&vcs->mutex); |
d203a7ec RB |
4568 | spin_lock_init(&vcs->capture_lock); |
4569 | ||
3593cab5 | 4570 | mutex_init(&vcs->fb_queue.queue_mutex); |
d203a7ec RB |
4571 | spin_lock_init(&vcs->fb_queue.queue_lock); |
4572 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); | |
4573 | ||
4574 | vcs->v4l_device = video_device_alloc(); | |
4575 | if (!vcs->v4l_device) { | |
4576 | vino_module_cleanup(vino_init_stage); | |
4577 | return -ENOMEM; | |
4578 | } | |
4579 | vino_init_stage++; | |
4580 | ||
4581 | memcpy(vcs->v4l_device, &v4l_device_template, | |
4582 | sizeof(struct video_device)); | |
4583 | strcpy(vcs->v4l_device->name, name); | |
4584 | vcs->v4l_device->release = video_device_release; | |
4585 | ||
4586 | video_set_drvdata(vcs->v4l_device, vcs); | |
4587 | ||
4588 | return 0; | |
4589 | } | |
4590 | ||
4591 | static int __init vino_module_init(void) | |
4592 | { | |
4593 | int ret; | |
4594 | ||
4595 | printk(KERN_INFO "SGI VINO driver version %s\n", | |
4596 | VINO_MODULE_VERSION); | |
4597 | ||
4598 | ret = vino_probe(); | |
4599 | if (ret) | |
4600 | return ret; | |
4601 | ||
4602 | ret = vino_init(); | |
4603 | if (ret) | |
4604 | return ret; | |
4605 | ||
4606 | /* initialize data structures */ | |
4607 | ||
4608 | spin_lock_init(&vino_drvdata->vino_lock); | |
4609 | spin_lock_init(&vino_drvdata->input_lock); | |
4610 | ||
4611 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, | |
4612 | vino_v4l_device_name_a); | |
4613 | if (ret) | |
4614 | return ret; | |
4615 | ||
4616 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, | |
4617 | vino_v4l_device_name_b); | |
4618 | if (ret) | |
4619 | return ret; | |
4620 | ||
4621 | /* initialize hardware and register V4L devices */ | |
4622 | ||
4623 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, | |
4624 | vino_driver_description, NULL); | |
4625 | if (ret) { | |
4626 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", | |
4627 | SGI_VINO_IRQ); | |
4628 | vino_module_cleanup(vino_init_stage); | |
4629 | return -EAGAIN; | |
4630 | } | |
4631 | vino_init_stage++; | |
4632 | ||
4633 | ret = vino_i2c_add_bus(); | |
4634 | if (ret) { | |
4635 | printk(KERN_ERR "VINO I2C bus registration failed\n"); | |
4636 | vino_module_cleanup(vino_init_stage); | |
4637 | return ret; | |
4638 | } | |
4639 | vino_init_stage++; | |
4640 | ||
4641 | ret = video_register_device(vino_drvdata->a.v4l_device, | |
4642 | VFL_TYPE_GRABBER, -1); | |
4643 | if (ret < 0) { | |
4644 | printk(KERN_ERR "VINO channel A Video4Linux-device " | |
4645 | "registration failed\n"); | |
4646 | vino_module_cleanup(vino_init_stage); | |
4647 | return -EINVAL; | |
4648 | } | |
4649 | vino_init_stage++; | |
4650 | ||
4651 | ret = video_register_device(vino_drvdata->b.v4l_device, | |
4652 | VFL_TYPE_GRABBER, -1); | |
4653 | if (ret < 0) { | |
4654 | printk(KERN_ERR "VINO channel B Video4Linux-device " | |
4655 | "registration failed\n"); | |
4656 | vino_module_cleanup(vino_init_stage); | |
4657 | return -EINVAL; | |
4658 | } | |
4659 | vino_init_stage++; | |
4660 | ||
4661 | #if defined(CONFIG_KMOD) && defined(MODULE) | |
4662 | request_module("saa7191"); | |
4663 | request_module("indycam"); | |
4664 | #endif | |
4665 | ||
4666 | dprintk("init complete!\n"); | |
4667 | ||
4668 | return 0; | |
4669 | } | |
4670 | ||
4671 | static void __exit vino_module_exit(void) | |
4672 | { | |
4673 | dprintk("exiting, stage = %d ...\n", vino_init_stage); | |
4674 | vino_module_cleanup(vino_init_stage); | |
4675 | dprintk("cleanup complete, exit!\n"); | |
4676 | } | |
4677 | ||
4678 | module_init(vino_module_init); | |
4679 | module_exit(vino_module_exit); |