Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
d203a7ec | 2 | * Driver for the VINO (Video In No Out) system found in SGI Indys. |
1da177e4 LT |
3 | * |
4 | * This file is subject to the terms and conditions of the GNU General Public | |
5 | * License version 2 as published by the Free Software Foundation. | |
6 | * | |
d203a7ec RB |
7 | * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> |
8 | * | |
9 | * Based on the previous version of the driver for 2.4 kernels by: | |
1da177e4 LT |
10 | * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> |
11 | */ | |
12 | ||
d203a7ec RB |
13 | /* |
14 | * TODO: | |
a637a114 | 15 | * - remove "mark pages reserved-hacks" from memory allocation code |
3c18ddd1 | 16 | * and implement fault() |
d203a7ec RB |
17 | * - check decimation, calculating and reporting image size when |
18 | * using decimation | |
a637a114 | 19 | * - implement read(), user mode buffers and overlay (?) |
d203a7ec RB |
20 | */ |
21 | ||
1da177e4 | 22 | #include <linux/init.h> |
d203a7ec | 23 | #include <linux/module.h> |
1da177e4 | 24 | #include <linux/delay.h> |
495515b3 | 25 | #include <linux/dma-mapping.h> |
d203a7ec RB |
26 | #include <linux/errno.h> |
27 | #include <linux/fs.h> | |
495515b3 | 28 | #include <linux/interrupt.h> |
d203a7ec RB |
29 | #include <linux/kernel.h> |
30 | #include <linux/mm.h> | |
495515b3 LM |
31 | #include <linux/time.h> |
32 | #include <linux/version.h> | |
d203a7ec | 33 | #include <linux/kmod.h> |
d203a7ec | 34 | |
1da177e4 | 35 | #include <linux/i2c.h> |
1da177e4 | 36 | |
33b687cf | 37 | #include <linux/videodev2.h> |
28959638 | 38 | #include <media/v4l2-device.h> |
c2cfcf70 | 39 | #include <media/v4l2-ioctl.h> |
3593cab5 | 40 | #include <linux/mutex.h> |
d203a7ec | 41 | |
1da177e4 LT |
42 | #include <asm/paccess.h> |
43 | #include <asm/io.h> | |
44 | #include <asm/sgi/ip22.h> | |
1da177e4 LT |
45 | #include <asm/sgi/mc.h> |
46 | ||
47 | #include "vino.h" | |
d203a7ec RB |
48 | #include "saa7191.h" |
49 | #include "indycam.h" | |
1da177e4 | 50 | |
d203a7ec RB |
51 | /* Uncomment the following line to get lots and lots of (mostly useless) |
52 | * debug info. | |
53 | * Note that the debug output also slows down the driver significantly */ | |
54 | // #define VINO_DEBUG | |
a637a114 | 55 | // #define VINO_DEBUG_INT |
d203a7ec | 56 | |
a637a114 LM |
57 | #define VINO_MODULE_VERSION "0.0.5" |
58 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5) | |
d203a7ec RB |
59 | |
60 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); | |
61 | MODULE_VERSION(VINO_MODULE_VERSION); | |
62 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
63 | MODULE_LICENSE("GPL"); | |
64 | ||
d203a7ec RB |
65 | #ifdef VINO_DEBUG |
66 | #define dprintk(x...) printk("VINO: " x); | |
1da177e4 | 67 | #else |
d203a7ec | 68 | #define dprintk(x...) |
1da177e4 LT |
69 | #endif |
70 | ||
d203a7ec RB |
71 | #define VINO_NO_CHANNEL 0 |
72 | #define VINO_CHANNEL_A 1 | |
73 | #define VINO_CHANNEL_B 2 | |
74 | ||
75 | #define VINO_PAL_WIDTH 768 | |
76 | #define VINO_PAL_HEIGHT 576 | |
77 | #define VINO_NTSC_WIDTH 640 | |
78 | #define VINO_NTSC_HEIGHT 480 | |
79 | ||
80 | #define VINO_MIN_WIDTH 32 | |
81 | #define VINO_MIN_HEIGHT 32 | |
82 | ||
83 | #define VINO_CLIPPING_START_ODD_D1 1 | |
a637a114 LM |
84 | #define VINO_CLIPPING_START_ODD_PAL 15 |
85 | #define VINO_CLIPPING_START_ODD_NTSC 12 | |
d203a7ec RB |
86 | |
87 | #define VINO_CLIPPING_START_EVEN_D1 2 | |
a637a114 LM |
88 | #define VINO_CLIPPING_START_EVEN_PAL 15 |
89 | #define VINO_CLIPPING_START_EVEN_NTSC 12 | |
d203a7ec RB |
90 | |
91 | #define VINO_INPUT_CHANNEL_COUNT 3 | |
92 | ||
a637a114 | 93 | /* the number is the index for vino_inputs */ |
d203a7ec RB |
94 | #define VINO_INPUT_NONE -1 |
95 | #define VINO_INPUT_COMPOSITE 0 | |
96 | #define VINO_INPUT_SVIDEO 1 | |
97 | #define VINO_INPUT_D1 2 | |
98 | ||
99 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) | |
100 | ||
a637a114 | 101 | #define VINO_FIFO_THRESHOLD_DEFAULT 16 |
d203a7ec | 102 | |
d203a7ec RB |
103 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ |
104 | * VINO_PAL_HEIGHT * 4 \ | |
105 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) | |
106 | ||
a637a114 | 107 | #define VINO_FRAMEBUFFER_COUNT_MAX 8 |
d203a7ec RB |
108 | |
109 | #define VINO_FRAMEBUFFER_UNUSED 0 | |
110 | #define VINO_FRAMEBUFFER_IN_USE 1 | |
111 | #define VINO_FRAMEBUFFER_READY 2 | |
112 | ||
113 | #define VINO_QUEUE_ERROR -1 | |
114 | #define VINO_QUEUE_MAGIC 0x20050125 | |
115 | ||
116 | #define VINO_MEMORY_NONE 0 | |
117 | #define VINO_MEMORY_MMAP 1 | |
118 | #define VINO_MEMORY_USERPTR 2 | |
119 | ||
120 | #define VINO_DUMMY_DESC_COUNT 4 | |
121 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ | |
122 | ||
a637a114 LM |
123 | #define VINO_MAX_FRAME_SKIP_COUNT 128 |
124 | ||
d203a7ec RB |
125 | /* the number is the index for vino_data_formats */ |
126 | #define VINO_DATA_FMT_NONE -1 | |
127 | #define VINO_DATA_FMT_GREY 0 | |
128 | #define VINO_DATA_FMT_RGB332 1 | |
129 | #define VINO_DATA_FMT_RGB32 2 | |
130 | #define VINO_DATA_FMT_YUV 3 | |
d203a7ec RB |
131 | |
132 | #define VINO_DATA_FMT_COUNT 4 | |
133 | ||
a637a114 | 134 | /* the number is the index for vino_data_norms */ |
d203a7ec RB |
135 | #define VINO_DATA_NORM_NONE -1 |
136 | #define VINO_DATA_NORM_NTSC 0 | |
137 | #define VINO_DATA_NORM_PAL 1 | |
138 | #define VINO_DATA_NORM_SECAM 2 | |
139 | #define VINO_DATA_NORM_D1 3 | |
d203a7ec RB |
140 | |
141 | #define VINO_DATA_NORM_COUNT 4 | |
142 | ||
cea0c681 JD |
143 | /* I2C controller flags */ |
144 | #define SGI_I2C_FORCE_IDLE (0 << 0) | |
145 | #define SGI_I2C_NOT_IDLE (1 << 0) | |
146 | #define SGI_I2C_WRITE (0 << 1) | |
147 | #define SGI_I2C_READ (1 << 1) | |
148 | #define SGI_I2C_RELEASE_BUS (0 << 2) | |
149 | #define SGI_I2C_HOLD_BUS (1 << 2) | |
150 | #define SGI_I2C_XFER_DONE (0 << 4) | |
151 | #define SGI_I2C_XFER_BUSY (1 << 4) | |
152 | #define SGI_I2C_ACK (0 << 5) | |
153 | #define SGI_I2C_NACK (1 << 5) | |
154 | #define SGI_I2C_BUS_OK (0 << 7) | |
155 | #define SGI_I2C_BUS_ERR (1 << 7) | |
156 | ||
d203a7ec RB |
157 | /* Internal data structure definitions */ |
158 | ||
159 | struct vino_input { | |
160 | char *name; | |
161 | v4l2_std_id std; | |
162 | }; | |
163 | ||
164 | struct vino_clipping { | |
165 | unsigned int left, right, top, bottom; | |
166 | }; | |
167 | ||
168 | struct vino_data_format { | |
169 | /* the description */ | |
170 | char *description; | |
171 | /* bytes per pixel */ | |
172 | unsigned int bpp; | |
173 | /* V4L2 fourcc code */ | |
174 | __u32 pixelformat; | |
175 | /* V4L2 colorspace (duh!) */ | |
176 | enum v4l2_colorspace colorspace; | |
177 | }; | |
178 | ||
179 | struct vino_data_norm { | |
180 | char *description; | |
181 | unsigned int width, height; | |
182 | struct vino_clipping odd; | |
183 | struct vino_clipping even; | |
184 | ||
185 | v4l2_std_id std; | |
186 | unsigned int fps_min, fps_max; | |
187 | __u32 framelines; | |
188 | }; | |
189 | ||
190 | struct vino_descriptor_table { | |
191 | /* the number of PAGE_SIZE sized pages in the buffer */ | |
192 | unsigned int page_count; | |
193 | /* virtual (kmalloc'd) pointers to the actual data | |
194 | * (in PAGE_SIZE chunks, used with mmap streaming) */ | |
195 | unsigned long *virtual; | |
196 | ||
197 | /* cpu address for the VINO descriptor table | |
198 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
199 | unsigned long *dma_cpu; | |
200 | /* dma address for the VINO descriptor table | |
201 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ | |
202 | dma_addr_t dma; | |
203 | }; | |
204 | ||
205 | struct vino_framebuffer { | |
206 | /* identifier nubmer */ | |
207 | unsigned int id; | |
208 | /* the length of the whole buffer */ | |
209 | unsigned int size; | |
210 | /* the length of actual data in buffer */ | |
211 | unsigned int data_size; | |
212 | /* the data format */ | |
213 | unsigned int data_format; | |
214 | /* the state of buffer data */ | |
215 | unsigned int state; | |
216 | /* is the buffer mapped in user space? */ | |
217 | unsigned int map_count; | |
218 | /* memory offset for mmap() */ | |
219 | unsigned int offset; | |
220 | /* frame counter */ | |
221 | unsigned int frame_counter; | |
222 | /* timestamp (written when image capture finishes) */ | |
223 | struct timeval timestamp; | |
224 | ||
225 | struct vino_descriptor_table desc_table; | |
226 | ||
227 | spinlock_t state_lock; | |
228 | }; | |
229 | ||
230 | struct vino_framebuffer_fifo { | |
231 | unsigned int length; | |
232 | ||
233 | unsigned int used; | |
234 | unsigned int head; | |
235 | unsigned int tail; | |
236 | ||
a637a114 | 237 | unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; |
d203a7ec RB |
238 | }; |
239 | ||
240 | struct vino_framebuffer_queue { | |
241 | unsigned int magic; | |
242 | ||
243 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ | |
244 | unsigned int type; | |
245 | unsigned int length; | |
246 | ||
247 | /* data field of in and out contain index numbers for buffer */ | |
248 | struct vino_framebuffer_fifo in; | |
249 | struct vino_framebuffer_fifo out; | |
250 | ||
a637a114 | 251 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; |
1da177e4 | 252 | |
d203a7ec | 253 | spinlock_t queue_lock; |
3593cab5 | 254 | struct mutex queue_mutex; |
d203a7ec RB |
255 | wait_queue_head_t frame_wait_queue; |
256 | }; | |
257 | ||
a637a114 LM |
258 | struct vino_interrupt_data { |
259 | struct timeval timestamp; | |
260 | unsigned int frame_counter; | |
261 | unsigned int skip_count; | |
262 | unsigned int skip; | |
263 | }; | |
264 | ||
d203a7ec RB |
265 | struct vino_channel_settings { |
266 | unsigned int channel; | |
267 | ||
268 | int input; | |
269 | unsigned int data_format; | |
270 | unsigned int data_norm; | |
271 | struct vino_clipping clipping; | |
272 | unsigned int decimation; | |
273 | unsigned int line_size; | |
274 | unsigned int alpha; | |
275 | unsigned int fps; | |
276 | unsigned int framert_reg; | |
277 | ||
278 | unsigned int fifo_threshold; | |
279 | ||
280 | struct vino_framebuffer_queue fb_queue; | |
281 | ||
282 | /* number of the current field */ | |
283 | unsigned int field; | |
284 | ||
285 | /* read in progress */ | |
286 | int reading; | |
287 | /* streaming is active */ | |
288 | int streaming; | |
289 | /* the driver is currently processing the queue */ | |
290 | int capturing; | |
291 | ||
3593cab5 | 292 | struct mutex mutex; |
d203a7ec | 293 | spinlock_t capture_lock; |
1da177e4 | 294 | |
d203a7ec | 295 | unsigned int users; |
1da177e4 | 296 | |
a637a114 LM |
297 | struct vino_interrupt_data int_data; |
298 | ||
d203a7ec | 299 | /* V4L support */ |
0ef4dbad | 300 | struct video_device *vdev; |
1da177e4 LT |
301 | }; |
302 | ||
d203a7ec | 303 | struct vino_settings { |
28959638 | 304 | struct v4l2_device v4l2_dev; |
d203a7ec RB |
305 | struct vino_channel_settings a; |
306 | struct vino_channel_settings b; | |
1da177e4 | 307 | |
48f4dacb HV |
308 | /* the channel which owns this client: |
309 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ | |
310 | unsigned int decoder_owner; | |
311 | struct v4l2_subdev *decoder; | |
312 | unsigned int camera_owner; | |
313 | struct v4l2_subdev *camera; | |
1da177e4 | 314 | |
d203a7ec RB |
315 | /* a lock for vino register access */ |
316 | spinlock_t vino_lock; | |
317 | /* a lock for channel input changes */ | |
318 | spinlock_t input_lock; | |
1da177e4 | 319 | |
1da177e4 | 320 | unsigned long dummy_page; |
d203a7ec RB |
321 | struct vino_descriptor_table dummy_desc_table; |
322 | }; | |
323 | ||
324 | /* Module parameters */ | |
325 | ||
326 | /* | |
a637a114 | 327 | * Using vino_pixel_conversion the ABGR32-format pixels supplied |
d203a7ec RB |
328 | * by the VINO chip can be converted to more common formats |
329 | * like RGBA32 (or probably RGB24 in the future). This way we | |
330 | * can give out data that can be specified correctly with | |
331 | * the V4L2-definitions. | |
332 | * | |
333 | * The pixel format is specified as RGBA32 when no conversion | |
334 | * is used. | |
335 | * | |
336 | * Note that this only affects the 32-bit bit depth. | |
337 | * | |
338 | * Use non-zero value to enable conversion. | |
339 | */ | |
ff699e6b | 340 | static int vino_pixel_conversion; |
a637a114 | 341 | |
d203a7ec | 342 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); |
a637a114 | 343 | |
d203a7ec RB |
344 | MODULE_PARM_DESC(pixelconv, |
345 | "enable pixel conversion (non-zero value enables)"); | |
346 | ||
347 | /* Internal data structures */ | |
348 | ||
349 | static struct sgi_vino *vino; | |
350 | ||
351 | static struct vino_settings *vino_drvdata; | |
352 | ||
48f4dacb HV |
353 | #define camera_call(o, f, args...) \ |
354 | v4l2_subdev_call(vino_drvdata->camera, o, f, ##args) | |
355 | #define decoder_call(o, f, args...) \ | |
356 | v4l2_subdev_call(vino_drvdata->decoder, o, f, ##args) | |
357 | ||
d203a7ec RB |
358 | static const char *vino_driver_name = "vino"; |
359 | static const char *vino_driver_description = "SGI VINO"; | |
360 | static const char *vino_bus_name = "GIO64 bus"; | |
0ef4dbad HV |
361 | static const char *vino_vdev_name_a = "SGI VINO Channel A"; |
362 | static const char *vino_vdev_name_b = "SGI VINO Channel B"; | |
d203a7ec | 363 | |
a637a114 LM |
364 | static void vino_capture_tasklet(unsigned long channel); |
365 | ||
366 | DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); | |
367 | DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); | |
368 | ||
d203a7ec RB |
369 | static const struct vino_input vino_inputs[] = { |
370 | { | |
371 | .name = "Composite", | |
a637a114 LM |
372 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
373 | | V4L2_STD_SECAM, | |
cf4e9484 | 374 | }, { |
d203a7ec | 375 | .name = "S-Video", |
a637a114 LM |
376 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
377 | | V4L2_STD_SECAM, | |
cf4e9484 | 378 | }, { |
a637a114 | 379 | .name = "D1/IndyCam", |
d203a7ec RB |
380 | .std = V4L2_STD_NTSC, |
381 | } | |
382 | }; | |
383 | ||
384 | static const struct vino_data_format vino_data_formats[] = { | |
385 | { | |
386 | .description = "8-bit greyscale", | |
387 | .bpp = 1, | |
388 | .pixelformat = V4L2_PIX_FMT_GREY, | |
389 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
cf4e9484 | 390 | }, { |
d203a7ec RB |
391 | .description = "8-bit dithered RGB 3-3-2", |
392 | .bpp = 1, | |
393 | .pixelformat = V4L2_PIX_FMT_RGB332, | |
394 | .colorspace = V4L2_COLORSPACE_SRGB, | |
cf4e9484 | 395 | }, { |
d203a7ec RB |
396 | .description = "32-bit RGB", |
397 | .bpp = 4, | |
398 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
399 | .colorspace = V4L2_COLORSPACE_SRGB, | |
cf4e9484 | 400 | }, { |
d203a7ec | 401 | .description = "YUV 4:2:2", |
a637a114 | 402 | .bpp = 2, |
d203a7ec RB |
403 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? |
404 | .colorspace = V4L2_COLORSPACE_SMPTE170M, | |
a637a114 | 405 | } |
d203a7ec RB |
406 | }; |
407 | ||
408 | static const struct vino_data_norm vino_data_norms[] = { | |
409 | { | |
410 | .description = "NTSC", | |
411 | .std = V4L2_STD_NTSC, | |
412 | .fps_min = 6, | |
413 | .fps_max = 30, | |
414 | .framelines = 525, | |
415 | .width = VINO_NTSC_WIDTH, | |
416 | .height = VINO_NTSC_HEIGHT, | |
417 | .odd = { | |
a637a114 LM |
418 | .top = VINO_CLIPPING_START_ODD_NTSC, |
419 | .left = 0, | |
d203a7ec RB |
420 | .bottom = VINO_CLIPPING_START_ODD_NTSC |
421 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 422 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
423 | }, |
424 | .even = { | |
a637a114 LM |
425 | .top = VINO_CLIPPING_START_EVEN_NTSC, |
426 | .left = 0, | |
d203a7ec RB |
427 | .bottom = VINO_CLIPPING_START_EVEN_NTSC |
428 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 429 | .right = VINO_NTSC_WIDTH, |
d203a7ec | 430 | }, |
cf4e9484 | 431 | }, { |
d203a7ec RB |
432 | .description = "PAL", |
433 | .std = V4L2_STD_PAL, | |
434 | .fps_min = 5, | |
435 | .fps_max = 25, | |
436 | .framelines = 625, | |
437 | .width = VINO_PAL_WIDTH, | |
438 | .height = VINO_PAL_HEIGHT, | |
439 | .odd = { | |
a637a114 LM |
440 | .top = VINO_CLIPPING_START_ODD_PAL, |
441 | .left = 0, | |
d203a7ec RB |
442 | .bottom = VINO_CLIPPING_START_ODD_PAL |
443 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 444 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
445 | }, |
446 | .even = { | |
a637a114 LM |
447 | .top = VINO_CLIPPING_START_EVEN_PAL, |
448 | .left = 0, | |
d203a7ec RB |
449 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
450 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 451 | .right = VINO_PAL_WIDTH, |
d203a7ec | 452 | }, |
cf4e9484 | 453 | }, { |
d203a7ec RB |
454 | .description = "SECAM", |
455 | .std = V4L2_STD_SECAM, | |
456 | .fps_min = 5, | |
457 | .fps_max = 25, | |
458 | .framelines = 625, | |
459 | .width = VINO_PAL_WIDTH, | |
460 | .height = VINO_PAL_HEIGHT, | |
461 | .odd = { | |
a637a114 LM |
462 | .top = VINO_CLIPPING_START_ODD_PAL, |
463 | .left = 0, | |
d203a7ec RB |
464 | .bottom = VINO_CLIPPING_START_ODD_PAL |
465 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 466 | .right = VINO_PAL_WIDTH, |
d203a7ec RB |
467 | }, |
468 | .even = { | |
a637a114 LM |
469 | .top = VINO_CLIPPING_START_EVEN_PAL, |
470 | .left = 0, | |
d203a7ec RB |
471 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
472 | + VINO_PAL_HEIGHT / 2 - 1, | |
a637a114 | 473 | .right = VINO_PAL_WIDTH, |
d203a7ec | 474 | }, |
cf4e9484 | 475 | }, { |
a637a114 | 476 | .description = "NTSC/D1", |
d203a7ec RB |
477 | .std = V4L2_STD_NTSC, |
478 | .fps_min = 6, | |
479 | .fps_max = 30, | |
480 | .framelines = 525, | |
481 | .width = VINO_NTSC_WIDTH, | |
482 | .height = VINO_NTSC_HEIGHT, | |
483 | .odd = { | |
a637a114 LM |
484 | .top = VINO_CLIPPING_START_ODD_D1, |
485 | .left = 0, | |
d203a7ec RB |
486 | .bottom = VINO_CLIPPING_START_ODD_D1 |
487 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 488 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
489 | }, |
490 | .even = { | |
a637a114 LM |
491 | .top = VINO_CLIPPING_START_EVEN_D1, |
492 | .left = 0, | |
d203a7ec RB |
493 | .bottom = VINO_CLIPPING_START_EVEN_D1 |
494 | + VINO_NTSC_HEIGHT / 2 - 1, | |
a637a114 | 495 | .right = VINO_NTSC_WIDTH, |
d203a7ec RB |
496 | }, |
497 | } | |
498 | }; | |
499 | ||
500 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 | |
501 | ||
502 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { | |
503 | { | |
504 | .id = V4L2_CID_AUTOGAIN, | |
505 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
506 | .name = "Automatic Gain Control", | |
507 | .minimum = 0, | |
508 | .maximum = 1, | |
509 | .step = 1, | |
510 | .default_value = INDYCAM_AGC_DEFAULT, | |
cf4e9484 | 511 | }, { |
d203a7ec RB |
512 | .id = V4L2_CID_AUTO_WHITE_BALANCE, |
513 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
514 | .name = "Automatic White Balance", | |
515 | .minimum = 0, | |
516 | .maximum = 1, | |
517 | .step = 1, | |
518 | .default_value = INDYCAM_AWB_DEFAULT, | |
cf4e9484 | 519 | }, { |
d203a7ec RB |
520 | .id = V4L2_CID_GAIN, |
521 | .type = V4L2_CTRL_TYPE_INTEGER, | |
522 | .name = "Gain", | |
523 | .minimum = INDYCAM_GAIN_MIN, | |
524 | .maximum = INDYCAM_GAIN_MAX, | |
525 | .step = 1, | |
526 | .default_value = INDYCAM_GAIN_DEFAULT, | |
cf4e9484 HV |
527 | }, { |
528 | .id = INDYCAM_CONTROL_RED_SATURATION, | |
d203a7ec RB |
529 | .type = V4L2_CTRL_TYPE_INTEGER, |
530 | .name = "Red Saturation", | |
531 | .minimum = INDYCAM_RED_SATURATION_MIN, | |
532 | .maximum = INDYCAM_RED_SATURATION_MAX, | |
533 | .step = 1, | |
534 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, | |
cf4e9484 HV |
535 | }, { |
536 | .id = INDYCAM_CONTROL_BLUE_SATURATION, | |
d203a7ec RB |
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, | |
cf4e9484 | 543 | }, { |
d203a7ec RB |
544 | .id = V4L2_CID_RED_BALANCE, |
545 | .type = V4L2_CTRL_TYPE_INTEGER, | |
546 | .name = "Red Balance", | |
547 | .minimum = INDYCAM_RED_BALANCE_MIN, | |
548 | .maximum = INDYCAM_RED_BALANCE_MAX, | |
549 | .step = 1, | |
550 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, | |
cf4e9484 | 551 | }, { |
d203a7ec RB |
552 | .id = V4L2_CID_BLUE_BALANCE, |
553 | .type = V4L2_CTRL_TYPE_INTEGER, | |
554 | .name = "Blue Balance", | |
555 | .minimum = INDYCAM_BLUE_BALANCE_MIN, | |
556 | .maximum = INDYCAM_BLUE_BALANCE_MAX, | |
557 | .step = 1, | |
558 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, | |
cf4e9484 | 559 | }, { |
d203a7ec RB |
560 | .id = V4L2_CID_EXPOSURE, |
561 | .type = V4L2_CTRL_TYPE_INTEGER, | |
562 | .name = "Shutter Control", | |
563 | .minimum = INDYCAM_SHUTTER_MIN, | |
564 | .maximum = INDYCAM_SHUTTER_MAX, | |
565 | .step = 1, | |
566 | .default_value = INDYCAM_SHUTTER_DEFAULT, | |
cf4e9484 | 567 | }, { |
d203a7ec RB |
568 | .id = V4L2_CID_GAMMA, |
569 | .type = V4L2_CTRL_TYPE_INTEGER, | |
570 | .name = "Gamma", | |
571 | .minimum = INDYCAM_GAMMA_MIN, | |
572 | .maximum = INDYCAM_GAMMA_MAX, | |
573 | .step = 1, | |
574 | .default_value = INDYCAM_GAMMA_DEFAULT, | |
d203a7ec RB |
575 | } |
576 | }; | |
577 | ||
a637a114 | 578 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 9 |
d203a7ec RB |
579 | |
580 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { | |
581 | { | |
582 | .id = V4L2_CID_HUE, | |
583 | .type = V4L2_CTRL_TYPE_INTEGER, | |
584 | .name = "Hue", | |
585 | .minimum = SAA7191_HUE_MIN, | |
586 | .maximum = SAA7191_HUE_MAX, | |
587 | .step = 1, | |
588 | .default_value = SAA7191_HUE_DEFAULT, | |
cf4e9484 HV |
589 | }, { |
590 | .id = SAA7191_CONTROL_BANDPASS, | |
a637a114 LM |
591 | .type = V4L2_CTRL_TYPE_INTEGER, |
592 | .name = "Luminance Bandpass", | |
593 | .minimum = SAA7191_BANDPASS_MIN, | |
594 | .maximum = SAA7191_BANDPASS_MAX, | |
595 | .step = 1, | |
596 | .default_value = SAA7191_BANDPASS_DEFAULT, | |
cf4e9484 HV |
597 | }, { |
598 | .id = SAA7191_CONTROL_BANDPASS_WEIGHT, | |
a637a114 LM |
599 | .type = V4L2_CTRL_TYPE_INTEGER, |
600 | .name = "Luminance Bandpass Weight", | |
601 | .minimum = SAA7191_BANDPASS_WEIGHT_MIN, | |
602 | .maximum = SAA7191_BANDPASS_WEIGHT_MAX, | |
603 | .step = 1, | |
604 | .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, | |
cf4e9484 HV |
605 | }, { |
606 | .id = SAA7191_CONTROL_CORING, | |
a637a114 LM |
607 | .type = V4L2_CTRL_TYPE_INTEGER, |
608 | .name = "HF Luminance Coring", | |
609 | .minimum = SAA7191_CORING_MIN, | |
610 | .maximum = SAA7191_CORING_MAX, | |
611 | .step = 1, | |
612 | .default_value = SAA7191_CORING_DEFAULT, | |
cf4e9484 HV |
613 | }, { |
614 | .id = SAA7191_CONTROL_FORCE_COLOUR, | |
a637a114 LM |
615 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
616 | .name = "Force Colour", | |
617 | .minimum = SAA7191_FORCE_COLOUR_MIN, | |
618 | .maximum = SAA7191_FORCE_COLOUR_MAX, | |
619 | .step = 1, | |
620 | .default_value = SAA7191_FORCE_COLOUR_DEFAULT, | |
cf4e9484 HV |
621 | }, { |
622 | .id = SAA7191_CONTROL_CHROMA_GAIN, | |
a637a114 LM |
623 | .type = V4L2_CTRL_TYPE_INTEGER, |
624 | .name = "Chrominance Gain Control", | |
625 | .minimum = SAA7191_CHROMA_GAIN_MIN, | |
626 | .maximum = SAA7191_CHROMA_GAIN_MAX, | |
627 | .step = 1, | |
628 | .default_value = SAA7191_CHROMA_GAIN_DEFAULT, | |
cf4e9484 HV |
629 | }, { |
630 | .id = SAA7191_CONTROL_VTRC, | |
d203a7ec RB |
631 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
632 | .name = "VTR Time Constant", | |
633 | .minimum = SAA7191_VTRC_MIN, | |
634 | .maximum = SAA7191_VTRC_MAX, | |
635 | .step = 1, | |
636 | .default_value = SAA7191_VTRC_DEFAULT, | |
cf4e9484 HV |
637 | }, { |
638 | .id = SAA7191_CONTROL_LUMA_DELAY, | |
a637a114 LM |
639 | .type = V4L2_CTRL_TYPE_INTEGER, |
640 | .name = "Luminance Delay Compensation", | |
641 | .minimum = SAA7191_LUMA_DELAY_MIN, | |
642 | .maximum = SAA7191_LUMA_DELAY_MAX, | |
643 | .step = 1, | |
644 | .default_value = SAA7191_LUMA_DELAY_DEFAULT, | |
cf4e9484 HV |
645 | }, { |
646 | .id = SAA7191_CONTROL_VNR, | |
a637a114 LM |
647 | .type = V4L2_CTRL_TYPE_INTEGER, |
648 | .name = "Vertical Noise Reduction", | |
649 | .minimum = SAA7191_VNR_MIN, | |
650 | .maximum = SAA7191_VNR_MAX, | |
651 | .step = 1, | |
652 | .default_value = SAA7191_VNR_DEFAULT, | |
d203a7ec | 653 | } |
1da177e4 LT |
654 | }; |
655 | ||
d203a7ec RB |
656 | /* VINO framebuffer/DMA descriptor management */ |
657 | ||
658 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, | |
659 | unsigned int count) | |
1da177e4 | 660 | { |
d203a7ec | 661 | unsigned int i; |
1da177e4 | 662 | |
d203a7ec RB |
663 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
664 | ||
665 | for (i = 0; i < count; i++) { | |
eda9e4e2 | 666 | ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec RB |
667 | dma_unmap_single(NULL, |
668 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
669 | PAGE_SIZE, DMA_FROM_DEVICE); | |
670 | free_page(fb->desc_table.virtual[i]); | |
671 | } | |
672 | ||
673 | dma_free_coherent(NULL, | |
674 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * | |
675 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, | |
676 | fb->desc_table.dma); | |
677 | kfree(fb->desc_table.virtual); | |
678 | ||
679 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
680 | } | |
681 | ||
682 | static void vino_free_buffer(struct vino_framebuffer *fb) | |
683 | { | |
684 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); | |
1da177e4 LT |
685 | } |
686 | ||
d203a7ec RB |
687 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
688 | unsigned int size) | |
1da177e4 | 689 | { |
d203a7ec RB |
690 | unsigned int count, i, j; |
691 | int ret = 0; | |
692 | ||
693 | dprintk("vino_allocate_buffer():\n"); | |
694 | ||
695 | if (size < 1) | |
696 | return -EINVAL; | |
697 | ||
698 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
699 | ||
700 | count = ((size / PAGE_SIZE) + 4) & ~3; | |
701 | ||
702 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", | |
703 | size, count); | |
704 | ||
705 | /* allocate memory for table with virtual (page) addresses */ | |
706 | fb->desc_table.virtual = (unsigned long *) | |
707 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
708 | if (!fb->desc_table.virtual) | |
709 | return -ENOMEM; | |
710 | ||
711 | /* allocate memory for table with dma addresses | |
712 | * (has space for four extra descriptors) */ | |
713 | fb->desc_table.dma_cpu = | |
714 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
715 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
716 | GFP_KERNEL | GFP_DMA); | |
717 | if (!fb->desc_table.dma_cpu) { | |
718 | ret = -ENOMEM; | |
719 | goto out_free_virtual; | |
720 | } | |
721 | ||
722 | /* allocate pages for the buffer and acquire the according | |
723 | * dma addresses */ | |
724 | for (i = 0; i < count; i++) { | |
725 | dma_addr_t dma_data_addr; | |
726 | ||
727 | fb->desc_table.virtual[i] = | |
728 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
729 | if (!fb->desc_table.virtual[i]) { | |
730 | ret = -ENOBUFS; | |
731 | break; | |
732 | } | |
733 | ||
734 | dma_data_addr = | |
735 | dma_map_single(NULL, | |
736 | (void *)fb->desc_table.virtual[i], | |
737 | PAGE_SIZE, DMA_FROM_DEVICE); | |
738 | ||
739 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
740 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
741 | dma_data_addr + VINO_PAGE_SIZE * j; | |
742 | } | |
743 | ||
eda9e4e2 | 744 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec RB |
745 | } |
746 | ||
747 | /* page_count needs to be set anyway, because the descriptor table has | |
748 | * been allocated according to this number */ | |
749 | fb->desc_table.page_count = count; | |
750 | ||
751 | if (ret) { | |
752 | /* the descriptor with index i doesn't contain | |
753 | * a valid address yet */ | |
754 | vino_free_buffer_with_count(fb, i); | |
755 | return ret; | |
756 | } | |
757 | ||
758 | //fb->size = size; | |
759 | fb->size = count * PAGE_SIZE; | |
760 | fb->data_format = VINO_DATA_FMT_NONE; | |
761 | ||
762 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
763 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
764 | return 0; | |
765 | ||
766 | out_free_virtual: | |
767 | kfree(fb->desc_table.virtual); | |
768 | return ret; | |
1da177e4 LT |
769 | } |
770 | ||
d203a7ec RB |
771 | #if 0 |
772 | /* user buffers not fully implemented yet */ | |
773 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, | |
774 | void *user, | |
775 | unsigned int size) | |
1da177e4 | 776 | { |
d203a7ec RB |
777 | unsigned int count, i, j; |
778 | int ret = 0; | |
779 | ||
780 | dprintk("vino_prepare_user_buffer():\n"); | |
781 | ||
782 | if (size < 1) | |
783 | return -EINVAL; | |
784 | ||
785 | memset(fb, 0, sizeof(struct vino_framebuffer)); | |
786 | ||
787 | count = ((size / PAGE_SIZE)) & ~3; | |
788 | ||
789 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", | |
790 | size, count); | |
791 | ||
792 | /* allocate memory for table with virtual (page) addresses */ | |
793 | fb->desc_table.virtual = (unsigned long *) | |
794 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); | |
795 | if (!fb->desc_table.virtual) | |
796 | return -ENOMEM; | |
797 | ||
798 | /* allocate memory for table with dma addresses | |
799 | * (has space for four extra descriptors) */ | |
800 | fb->desc_table.dma_cpu = | |
801 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * | |
802 | sizeof(dma_addr_t), &fb->desc_table.dma, | |
803 | GFP_KERNEL | GFP_DMA); | |
804 | if (!fb->desc_table.dma_cpu) { | |
805 | ret = -ENOMEM; | |
806 | goto out_free_virtual; | |
807 | } | |
808 | ||
809 | /* allocate pages for the buffer and acquire the according | |
810 | * dma addresses */ | |
811 | for (i = 0; i < count; i++) { | |
812 | dma_addr_t dma_data_addr; | |
813 | ||
814 | fb->desc_table.virtual[i] = | |
815 | get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
816 | if (!fb->desc_table.virtual[i]) { | |
817 | ret = -ENOBUFS; | |
818 | break; | |
819 | } | |
820 | ||
821 | dma_data_addr = | |
822 | dma_map_single(NULL, | |
823 | (void *)fb->desc_table.virtual[i], | |
824 | PAGE_SIZE, DMA_FROM_DEVICE); | |
825 | ||
826 | for (j = 0; j < VINO_PAGE_RATIO; j++) { | |
827 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = | |
828 | dma_data_addr + VINO_PAGE_SIZE * j; | |
829 | } | |
830 | ||
eda9e4e2 | 831 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
d203a7ec | 832 | } |
1da177e4 | 833 | |
d203a7ec RB |
834 | /* page_count needs to be set anyway, because the descriptor table has |
835 | * been allocated according to this number */ | |
836 | fb->desc_table.page_count = count; | |
837 | ||
838 | if (ret) { | |
839 | /* the descriptor with index i doesn't contain | |
840 | * a valid address yet */ | |
841 | vino_free_buffer_with_count(fb, i); | |
842 | return ret; | |
843 | } | |
844 | ||
845 | //fb->size = size; | |
846 | fb->size = count * PAGE_SIZE; | |
847 | ||
848 | /* set the dma stop-bit for the last (count+1)th descriptor */ | |
849 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; | |
850 | return 0; | |
851 | ||
852 | out_free_virtual: | |
853 | kfree(fb->desc_table.virtual); | |
854 | return ret; | |
1da177e4 | 855 | } |
d203a7ec | 856 | #endif |
1da177e4 | 857 | |
d203a7ec | 858 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
1da177e4 | 859 | { |
d203a7ec RB |
860 | int i; |
861 | ||
862 | dprintk("vino_sync_buffer():\n"); | |
1da177e4 | 863 | |
d203a7ec RB |
864 | for (i = 0; i < fb->desc_table.page_count; i++) |
865 | dma_sync_single(NULL, | |
866 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], | |
867 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1da177e4 LT |
868 | } |
869 | ||
d203a7ec | 870 | /* Framebuffer fifo functions (need to be locked externally) */ |
1da177e4 | 871 | |
a637a114 | 872 | static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, |
d203a7ec | 873 | unsigned int length) |
1da177e4 | 874 | { |
d203a7ec RB |
875 | f->length = 0; |
876 | f->used = 0; | |
877 | f->head = 0; | |
878 | f->tail = 0; | |
1da177e4 | 879 | |
a637a114 LM |
880 | if (length > VINO_FRAMEBUFFER_COUNT_MAX) |
881 | length = VINO_FRAMEBUFFER_COUNT_MAX; | |
1da177e4 | 882 | |
d203a7ec RB |
883 | f->length = length; |
884 | } | |
885 | ||
886 | /* returns true/false */ | |
a637a114 LM |
887 | static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, |
888 | unsigned int id) | |
d203a7ec RB |
889 | { |
890 | unsigned int i; | |
a637a114 | 891 | |
d203a7ec RB |
892 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { |
893 | if (f->data[i] == id) | |
894 | return 1; | |
1da177e4 LT |
895 | } |
896 | ||
d203a7ec RB |
897 | return 0; |
898 | } | |
1da177e4 | 899 | |
a637a114 | 900 | #if 0 |
d203a7ec | 901 | /* returns true/false */ |
a637a114 | 902 | static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
903 | { |
904 | return (f->used == f->length); | |
905 | } | |
a637a114 | 906 | #endif |
d203a7ec | 907 | |
a637a114 | 908 | static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) |
d203a7ec RB |
909 | { |
910 | return f->used; | |
911 | } | |
912 | ||
913 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) | |
914 | { | |
915 | if (id >= f->length) { | |
916 | return VINO_QUEUE_ERROR; | |
1da177e4 | 917 | } |
d203a7ec RB |
918 | |
919 | if (vino_fifo_has_id(f, id)) { | |
920 | return VINO_QUEUE_ERROR; | |
1da177e4 | 921 | } |
1da177e4 | 922 | |
d203a7ec RB |
923 | if (f->used < f->length) { |
924 | f->data[f->tail] = id; | |
925 | f->tail = (f->tail + 1) % f->length; | |
926 | f->used++; | |
927 | } else { | |
928 | return VINO_QUEUE_ERROR; | |
1da177e4 LT |
929 | } |
930 | ||
d203a7ec RB |
931 | return 0; |
932 | } | |
933 | ||
934 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) | |
935 | { | |
936 | if (f->used > 0) { | |
937 | *id = f->data[f->head]; | |
938 | } else { | |
939 | return VINO_QUEUE_ERROR; | |
1da177e4 | 940 | } |
1da177e4 | 941 | |
d203a7ec RB |
942 | return 0; |
943 | } | |
944 | ||
945 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) | |
946 | { | |
947 | if (f->used > 0) { | |
948 | *id = f->data[f->head]; | |
949 | f->head = (f->head + 1) % f->length; | |
950 | f->used--; | |
951 | } else { | |
952 | return VINO_QUEUE_ERROR; | |
953 | } | |
954 | ||
955 | return 0; | |
956 | } | |
1da177e4 | 957 | |
d203a7ec | 958 | /* Framebuffer queue functions */ |
1da177e4 | 959 | |
d203a7ec RB |
960 | /* execute with queue_lock locked */ |
961 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, | |
962 | unsigned int length) | |
963 | { | |
964 | unsigned int i; | |
965 | ||
966 | q->length = 0; | |
967 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); | |
968 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); | |
969 | for (i = 0; i < length; i++) { | |
970 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", | |
971 | i); | |
972 | vino_free_buffer(q->buffer[i]); | |
973 | kfree(q->buffer[i]); | |
1da177e4 LT |
974 | } |
975 | ||
d203a7ec RB |
976 | q->type = VINO_MEMORY_NONE; |
977 | q->magic = 0; | |
978 | } | |
979 | ||
980 | static void vino_queue_free(struct vino_framebuffer_queue *q) | |
981 | { | |
982 | dprintk("vino_queue_free():\n"); | |
983 | ||
984 | if (q->magic != VINO_QUEUE_MAGIC) | |
985 | return; | |
986 | if (q->type != VINO_MEMORY_MMAP) | |
987 | return; | |
988 | ||
3593cab5 | 989 | mutex_lock(&q->queue_mutex); |
d203a7ec RB |
990 | |
991 | vino_queue_free_with_count(q, q->length); | |
992 | ||
3593cab5 | 993 | mutex_unlock(&q->queue_mutex); |
d203a7ec RB |
994 | } |
995 | ||
996 | static int vino_queue_init(struct vino_framebuffer_queue *q, | |
997 | unsigned int *length) | |
998 | { | |
999 | unsigned int i; | |
1000 | int ret = 0; | |
1001 | ||
1002 | dprintk("vino_queue_init(): length = %d\n", *length); | |
1003 | ||
1004 | if (q->magic == VINO_QUEUE_MAGIC) { | |
1005 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1006 | return -EINVAL; | |
1da177e4 LT |
1007 | } |
1008 | ||
d203a7ec RB |
1009 | if (q->type != VINO_MEMORY_NONE) { |
1010 | dprintk("vino_queue_init(): queue already initialized!\n"); | |
1011 | return -EINVAL; | |
1da177e4 | 1012 | } |
d203a7ec RB |
1013 | |
1014 | if (*length < 1) | |
1015 | return -EINVAL; | |
1016 | ||
3593cab5 | 1017 | mutex_lock(&q->queue_mutex); |
d203a7ec | 1018 | |
a637a114 LM |
1019 | if (*length > VINO_FRAMEBUFFER_COUNT_MAX) |
1020 | *length = VINO_FRAMEBUFFER_COUNT_MAX; | |
d203a7ec RB |
1021 | |
1022 | q->length = 0; | |
1023 | ||
1024 | for (i = 0; i < *length; i++) { | |
1025 | dprintk("vino_queue_init(): allocating buffer %d\n", i); | |
1026 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), | |
1027 | GFP_KERNEL); | |
1028 | if (!q->buffer[i]) { | |
1029 | dprintk("vino_queue_init(): kmalloc() failed\n"); | |
1030 | ret = -ENOMEM; | |
1031 | break; | |
1032 | } | |
1033 | ||
1034 | ret = vino_allocate_buffer(q->buffer[i], | |
1035 | VINO_FRAMEBUFFER_SIZE); | |
1036 | if (ret) { | |
1037 | kfree(q->buffer[i]); | |
1038 | dprintk("vino_queue_init(): " | |
1039 | "vino_allocate_buffer() failed\n"); | |
1040 | break; | |
1041 | } | |
1042 | ||
1043 | q->buffer[i]->id = i; | |
1044 | if (i > 0) { | |
1045 | q->buffer[i]->offset = q->buffer[i - 1]->offset + | |
1046 | q->buffer[i - 1]->size; | |
1047 | } else { | |
1048 | q->buffer[i]->offset = 0; | |
1049 | } | |
1050 | ||
1051 | spin_lock_init(&q->buffer[i]->state_lock); | |
1052 | ||
1053 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " | |
1054 | "size = %d\n", i, q->buffer[i]->offset, | |
1055 | q->buffer[i]->size); | |
1da177e4 LT |
1056 | } |
1057 | ||
d203a7ec RB |
1058 | if (ret) { |
1059 | vino_queue_free_with_count(q, i); | |
1060 | *length = 0; | |
1061 | } else { | |
1062 | q->length = *length; | |
1063 | vino_fifo_init(&q->in, q->length); | |
1064 | vino_fifo_init(&q->out, q->length); | |
1065 | q->type = VINO_MEMORY_MMAP; | |
1066 | q->magic = VINO_QUEUE_MAGIC; | |
1067 | } | |
1da177e4 | 1068 | |
3593cab5 | 1069 | mutex_unlock(&q->queue_mutex); |
1da177e4 LT |
1070 | |
1071 | return ret; | |
1072 | } | |
1073 | ||
d203a7ec RB |
1074 | static struct vino_framebuffer *vino_queue_add(struct |
1075 | vino_framebuffer_queue *q, | |
1076 | unsigned int id) | |
1da177e4 | 1077 | { |
d203a7ec RB |
1078 | struct vino_framebuffer *ret = NULL; |
1079 | unsigned int total; | |
1080 | unsigned long flags; | |
1081 | ||
1082 | dprintk("vino_queue_add(): id = %d\n", id); | |
1083 | ||
1084 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1085 | return ret; | |
1086 | } | |
1087 | ||
1088 | spin_lock_irqsave(&q->queue_lock, flags); | |
1089 | ||
1090 | if (q->length == 0) | |
1091 | goto out; | |
1092 | ||
1093 | if (id >= q->length) | |
1094 | goto out; | |
1095 | ||
1096 | /* not needed?: if (vino_fifo_full(&q->out)) { | |
1097 | goto out; | |
1098 | }*/ | |
1099 | /* check that outgoing queue isn't already full | |
1100 | * (or that it won't become full) */ | |
1101 | total = vino_fifo_get_used(&q->in) + | |
1102 | vino_fifo_get_used(&q->out); | |
1103 | if (total >= q->length) | |
1104 | goto out; | |
1105 | ||
1106 | if (vino_fifo_enqueue(&q->in, id)) | |
1107 | goto out; | |
1108 | ||
1109 | ret = q->buffer[id]; | |
1110 | ||
1111 | out: | |
1112 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1113 | ||
1114 | return ret; | |
1da177e4 LT |
1115 | } |
1116 | ||
d203a7ec RB |
1117 | static struct vino_framebuffer *vino_queue_transfer(struct |
1118 | vino_framebuffer_queue *q) | |
1119 | { | |
1120 | struct vino_framebuffer *ret = NULL; | |
1121 | struct vino_framebuffer *fb; | |
1122 | int id; | |
1123 | unsigned long flags; | |
1da177e4 | 1124 | |
d203a7ec RB |
1125 | dprintk("vino_queue_transfer():\n"); |
1126 | ||
1127 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1128 | return ret; | |
1129 | } | |
1130 | ||
1131 | spin_lock_irqsave(&q->queue_lock, flags); | |
1132 | ||
1133 | if (q->length == 0) | |
1134 | goto out; | |
1135 | ||
1136 | // now this actually removes an entry from the incoming queue | |
1137 | if (vino_fifo_dequeue(&q->in, &id)) { | |
1138 | goto out; | |
1139 | } | |
1140 | ||
1141 | dprintk("vino_queue_transfer(): id = %d\n", id); | |
1142 | fb = q->buffer[id]; | |
1143 | ||
1144 | // we have already checked that the outgoing queue is not full, but... | |
1145 | if (vino_fifo_enqueue(&q->out, id)) { | |
1146 | printk(KERN_ERR "vino_queue_transfer(): " | |
1147 | "outgoing queue is full, this shouldn't happen!\n"); | |
1148 | goto out; | |
1149 | } | |
1150 | ||
1151 | ret = fb; | |
1152 | out: | |
1153 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1154 | ||
1155 | return ret; | |
1156 | } | |
1157 | ||
1158 | /* returns true/false */ | |
1159 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, | |
1160 | unsigned int id) | |
1161 | { | |
1162 | int ret = 0; | |
1163 | unsigned long flags; | |
1164 | ||
1165 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1166 | return ret; | |
1167 | } | |
1168 | ||
1169 | spin_lock_irqsave(&q->queue_lock, flags); | |
1170 | ||
1171 | if (q->length == 0) | |
1172 | goto out; | |
1173 | ||
1174 | ret = vino_fifo_has_id(&q->in, id); | |
1175 | ||
1176 | out: | |
1177 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1178 | ||
1179 | return ret; | |
1180 | } | |
1181 | ||
1182 | /* returns true/false */ | |
1183 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, | |
1184 | unsigned int id) | |
1185 | { | |
1186 | int ret = 0; | |
1187 | unsigned long flags; | |
1188 | ||
1189 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1190 | return ret; | |
1191 | } | |
1192 | ||
1193 | spin_lock_irqsave(&q->queue_lock, flags); | |
1194 | ||
1195 | if (q->length == 0) | |
1196 | goto out; | |
1197 | ||
1198 | ret = vino_fifo_has_id(&q->out, id); | |
1199 | ||
1200 | out: | |
1201 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1202 | ||
1203 | return ret; | |
1204 | } | |
1205 | ||
1206 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, | |
1207 | unsigned int *used) | |
1208 | { | |
1209 | int ret = 0; | |
1210 | unsigned long flags; | |
1211 | ||
1212 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1213 | return VINO_QUEUE_ERROR; | |
1214 | } | |
1215 | ||
1216 | spin_lock_irqsave(&q->queue_lock, flags); | |
1217 | ||
1218 | if (q->length == 0) { | |
1219 | ret = VINO_QUEUE_ERROR; | |
1220 | goto out; | |
1221 | } | |
1222 | ||
1223 | *used = vino_fifo_get_used(&q->in); | |
1224 | ||
1225 | out: | |
1226 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1227 | ||
1228 | return ret; | |
1229 | } | |
1230 | ||
1231 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, | |
1232 | unsigned int *used) | |
1233 | { | |
1234 | int ret = 0; | |
1235 | unsigned long flags; | |
1236 | ||
1237 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1238 | return VINO_QUEUE_ERROR; | |
1239 | } | |
1240 | ||
1241 | spin_lock_irqsave(&q->queue_lock, flags); | |
1242 | ||
1243 | if (q->length == 0) { | |
1244 | ret = VINO_QUEUE_ERROR; | |
1245 | goto out; | |
1246 | } | |
1247 | ||
1248 | *used = vino_fifo_get_used(&q->out); | |
1249 | ||
1250 | out: | |
1251 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1252 | ||
1253 | return ret; | |
1254 | } | |
1255 | ||
a637a114 | 1256 | #if 0 |
d203a7ec RB |
1257 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, |
1258 | unsigned int *total) | |
1259 | { | |
1260 | int ret = 0; | |
1261 | unsigned long flags; | |
1262 | ||
1263 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1264 | return VINO_QUEUE_ERROR; | |
1265 | } | |
1266 | ||
1267 | spin_lock_irqsave(&q->queue_lock, flags); | |
1268 | ||
1269 | if (q->length == 0) { | |
1270 | ret = VINO_QUEUE_ERROR; | |
1271 | goto out; | |
1272 | } | |
1273 | ||
1274 | *total = vino_fifo_get_used(&q->in) + | |
1275 | vino_fifo_get_used(&q->out); | |
1276 | ||
1277 | out: | |
1278 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1279 | ||
1280 | return ret; | |
1281 | } | |
a637a114 | 1282 | #endif |
d203a7ec RB |
1283 | |
1284 | static struct vino_framebuffer *vino_queue_peek(struct | |
1285 | vino_framebuffer_queue *q, | |
1286 | unsigned int *id) | |
1287 | { | |
1288 | struct vino_framebuffer *ret = NULL; | |
1289 | unsigned long flags; | |
1290 | ||
1291 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1292 | return ret; | |
1293 | } | |
1294 | ||
1295 | spin_lock_irqsave(&q->queue_lock, flags); | |
1296 | ||
1297 | if (q->length == 0) | |
1298 | goto out; | |
1299 | ||
1300 | if (vino_fifo_peek(&q->in, id)) { | |
1301 | goto out; | |
1302 | } | |
1303 | ||
1304 | ret = q->buffer[*id]; | |
1305 | out: | |
1306 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1307 | ||
1308 | return ret; | |
1309 | } | |
1310 | ||
1311 | static struct vino_framebuffer *vino_queue_remove(struct | |
1312 | vino_framebuffer_queue *q, | |
1313 | unsigned int *id) | |
1314 | { | |
1315 | struct vino_framebuffer *ret = NULL; | |
1316 | unsigned long flags; | |
1317 | dprintk("vino_queue_remove():\n"); | |
1318 | ||
1319 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1320 | return ret; | |
1321 | } | |
1322 | ||
1323 | spin_lock_irqsave(&q->queue_lock, flags); | |
1324 | ||
1325 | if (q->length == 0) | |
1326 | goto out; | |
1327 | ||
1328 | if (vino_fifo_dequeue(&q->out, id)) { | |
1329 | goto out; | |
1330 | } | |
1331 | ||
1332 | dprintk("vino_queue_remove(): id = %d\n", *id); | |
1333 | ret = q->buffer[*id]; | |
1334 | out: | |
1335 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1336 | ||
1337 | return ret; | |
1338 | } | |
1339 | ||
1340 | static struct | |
1341 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, | |
1342 | unsigned int id) | |
1343 | { | |
1344 | struct vino_framebuffer *ret = NULL; | |
1345 | unsigned long flags; | |
1346 | ||
1347 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1348 | return ret; | |
1349 | } | |
1350 | ||
1351 | spin_lock_irqsave(&q->queue_lock, flags); | |
1352 | ||
1353 | if (q->length == 0) | |
1354 | goto out; | |
1355 | ||
1356 | if (id >= q->length) | |
1357 | goto out; | |
1358 | ||
1359 | ret = q->buffer[id]; | |
1360 | out: | |
1361 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1362 | ||
1363 | return ret; | |
1364 | } | |
1365 | ||
1366 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) | |
1367 | { | |
1368 | unsigned int length = 0; | |
1369 | unsigned long flags; | |
1370 | ||
1371 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1372 | return length; | |
1373 | } | |
1374 | ||
1375 | spin_lock_irqsave(&q->queue_lock, flags); | |
1376 | length = q->length; | |
1377 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1378 | ||
1379 | return length; | |
1380 | } | |
1381 | ||
1382 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) | |
1383 | { | |
1384 | unsigned int i; | |
1385 | int ret = 0; | |
1386 | unsigned long flags; | |
1387 | ||
1388 | if (q->magic != VINO_QUEUE_MAGIC) { | |
1389 | return ret; | |
1390 | } | |
1391 | ||
1392 | spin_lock_irqsave(&q->queue_lock, flags); | |
1393 | for (i = 0; i < q->length; i++) { | |
1394 | if (q->buffer[i]->map_count > 0) { | |
1395 | ret = 1; | |
1396 | break; | |
1397 | } | |
1398 | } | |
1399 | spin_unlock_irqrestore(&q->queue_lock, flags); | |
1400 | ||
1401 | return ret; | |
1402 | } | |
1403 | ||
1404 | /* VINO functions */ | |
1405 | ||
1406 | /* execute with input_lock locked */ | |
1407 | static void vino_update_line_size(struct vino_channel_settings *vcs) | |
1408 | { | |
1409 | unsigned int w = vcs->clipping.right - vcs->clipping.left; | |
1410 | unsigned int d = vcs->decimation; | |
1411 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; | |
d56410e0 | 1412 | unsigned int lsize; |
d203a7ec RB |
1413 | |
1414 | dprintk("update_line_size(): before: w = %d, d = %d, " | |
1415 | "line_size = %d\n", w, d, vcs->line_size); | |
a637a114 | 1416 | |
d56410e0 | 1417 | /* line size must be multiple of 8 bytes */ |
d203a7ec RB |
1418 | lsize = (bpp * (w / d)) & ~7; |
1419 | w = (lsize / bpp) * d; | |
1420 | ||
1421 | vcs->clipping.right = vcs->clipping.left + w; | |
1422 | vcs->line_size = lsize; | |
a637a114 | 1423 | |
d203a7ec RB |
1424 | dprintk("update_line_size(): after: w = %d, d = %d, " |
1425 | "line_size = %d\n", w, d, vcs->line_size); | |
1426 | } | |
1427 | ||
1428 | /* execute with input_lock locked */ | |
1429 | static void vino_set_clipping(struct vino_channel_settings *vcs, | |
1430 | unsigned int x, unsigned int y, | |
1431 | unsigned int w, unsigned int h) | |
1432 | { | |
1433 | unsigned int maxwidth, maxheight; | |
1434 | unsigned int d; | |
1435 | ||
1436 | maxwidth = vino_data_norms[vcs->data_norm].width; | |
1437 | maxheight = vino_data_norms[vcs->data_norm].height; | |
1438 | d = vcs->decimation; | |
1439 | ||
1440 | y &= ~1; /* odd/even fields */ | |
1441 | ||
1442 | if (x > maxwidth) { | |
1443 | x = 0; | |
1444 | } | |
1445 | if (y > maxheight) { | |
1446 | y = 0; | |
1447 | } | |
1448 | ||
1449 | if (((w / d) < VINO_MIN_WIDTH) | |
1450 | || ((h / d) < VINO_MIN_HEIGHT)) { | |
1451 | w = VINO_MIN_WIDTH * d; | |
1452 | h = VINO_MIN_HEIGHT * d; | |
1453 | } | |
1454 | ||
1455 | if ((x + w) > maxwidth) { | |
1456 | w = maxwidth - x; | |
1457 | if ((w / d) < VINO_MIN_WIDTH) | |
1458 | x = maxwidth - VINO_MIN_WIDTH * d; | |
1459 | } | |
1460 | if ((y + h) > maxheight) { | |
1461 | h = maxheight - y; | |
1462 | if ((h / d) < VINO_MIN_HEIGHT) | |
1463 | y = maxheight - VINO_MIN_HEIGHT * d; | |
1464 | } | |
1465 | ||
1466 | vcs->clipping.left = x; | |
1467 | vcs->clipping.top = y; | |
1468 | vcs->clipping.right = x + w; | |
1469 | vcs->clipping.bottom = y + h; | |
1470 | ||
1471 | vino_update_line_size(vcs); | |
1472 | ||
1473 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", | |
1474 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, | |
1475 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); | |
1476 | } | |
1477 | ||
1478 | /* execute with input_lock locked */ | |
a637a114 | 1479 | static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) |
d203a7ec RB |
1480 | { |
1481 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, | |
1482 | vino_data_norms[vcs->data_norm].height); | |
1483 | } | |
1484 | ||
1485 | /* execute with input_lock locked */ | |
1486 | static void vino_set_scaling(struct vino_channel_settings *vcs, | |
1487 | unsigned int w, unsigned int h) | |
1488 | { | |
1489 | unsigned int x, y, curw, curh, d; | |
1490 | ||
1491 | x = vcs->clipping.left; | |
1492 | y = vcs->clipping.top; | |
1493 | curw = vcs->clipping.right - vcs->clipping.left; | |
1494 | curh = vcs->clipping.bottom - vcs->clipping.top; | |
1495 | ||
1496 | d = max(curw / w, curh / h); | |
1497 | ||
1498 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", | |
1499 | w, h, curw, curh, d); | |
1500 | ||
1501 | if (d < 1) { | |
1502 | d = 1; | |
a637a114 | 1503 | } else if (d > 8) { |
d203a7ec RB |
1504 | d = 8; |
1505 | } | |
1506 | ||
1507 | vcs->decimation = d; | |
1508 | vino_set_clipping(vcs, x, y, w * d, h * d); | |
1509 | ||
1510 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, | |
1511 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, | |
1512 | vcs->decimation, vcs->line_size); | |
1513 | } | |
1514 | ||
1515 | /* execute with input_lock locked */ | |
a637a114 | 1516 | static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) |
d203a7ec RB |
1517 | { |
1518 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, | |
1519 | vcs->clipping.bottom - vcs->clipping.top); | |
1520 | } | |
1521 | ||
1522 | /* execute with input_lock locked */ | |
1523 | static void vino_set_framerate(struct vino_channel_settings *vcs, | |
1524 | unsigned int fps) | |
1525 | { | |
1526 | unsigned int mask; | |
1527 | ||
1528 | switch (vcs->data_norm) { | |
1529 | case VINO_DATA_NORM_NTSC: | |
1530 | case VINO_DATA_NORM_D1: | |
1531 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! | |
1532 | ||
1533 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1534 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1535 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1536 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1537 | ||
1538 | switch (fps) { | |
1539 | case 6: | |
1540 | mask = 0x003; | |
1541 | break; | |
1542 | case 12: | |
1543 | mask = 0x0c3; | |
1544 | break; | |
1545 | case 18: | |
1546 | mask = 0x333; | |
1547 | break; | |
1548 | case 24: | |
1549 | mask = 0x3ff; | |
1550 | break; | |
1551 | case 30: | |
1552 | mask = 0xfff; | |
1553 | break; | |
1554 | default: | |
1555 | mask = VINO_FRAMERT_FULL; | |
1556 | } | |
1557 | vcs->framert_reg = VINO_FRAMERT_RT(mask); | |
1558 | break; | |
1559 | case VINO_DATA_NORM_PAL: | |
1560 | case VINO_DATA_NORM_SECAM: | |
1561 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! | |
1562 | ||
1563 | if (fps < vino_data_norms[vcs->data_norm].fps_min) | |
1564 | fps = vino_data_norms[vcs->data_norm].fps_min; | |
1565 | if (fps > vino_data_norms[vcs->data_norm].fps_max) | |
1566 | fps = vino_data_norms[vcs->data_norm].fps_max; | |
1567 | ||
1568 | switch (fps) { | |
1569 | case 5: | |
1570 | mask = 0x003; | |
1571 | break; | |
1572 | case 10: | |
1573 | mask = 0x0c3; | |
1574 | break; | |
1575 | case 15: | |
1576 | mask = 0x333; | |
1577 | break; | |
1578 | case 20: | |
1579 | mask = 0x0ff; | |
1580 | break; | |
1581 | case 25: | |
1582 | mask = 0x3ff; | |
1583 | break; | |
1584 | default: | |
1585 | mask = VINO_FRAMERT_FULL; | |
1586 | } | |
1587 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; | |
1588 | break; | |
1589 | } | |
1590 | ||
1591 | vcs->fps = fps; | |
1592 | } | |
1593 | ||
1594 | /* execute with input_lock locked */ | |
a637a114 LM |
1595 | static inline void vino_set_default_framerate(struct |
1596 | vino_channel_settings *vcs) | |
d203a7ec RB |
1597 | { |
1598 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); | |
1599 | } | |
1600 | ||
cea0c681 JD |
1601 | /* VINO I2C bus functions */ |
1602 | ||
1603 | struct i2c_algo_sgi_data { | |
1604 | void *data; /* private data for lowlevel routines */ | |
1605 | unsigned (*getctrl)(void *data); | |
1606 | void (*setctrl)(void *data, unsigned val); | |
1607 | unsigned (*rdata)(void *data); | |
1608 | void (*wdata)(void *data, unsigned val); | |
1609 | ||
1610 | int xfer_timeout; | |
1611 | int ack_timeout; | |
1612 | }; | |
1613 | ||
1614 | static int wait_xfer_done(struct i2c_algo_sgi_data *adap) | |
1615 | { | |
1616 | int i; | |
1617 | ||
1618 | for (i = 0; i < adap->xfer_timeout; i++) { | |
1619 | if ((adap->getctrl(adap->data) & SGI_I2C_XFER_BUSY) == 0) | |
1620 | return 0; | |
1621 | udelay(1); | |
1622 | } | |
1623 | ||
1624 | return -ETIMEDOUT; | |
1625 | } | |
1626 | ||
1627 | static int wait_ack(struct i2c_algo_sgi_data *adap) | |
1628 | { | |
1629 | int i; | |
1630 | ||
1631 | if (wait_xfer_done(adap)) | |
1632 | return -ETIMEDOUT; | |
1633 | for (i = 0; i < adap->ack_timeout; i++) { | |
1634 | if ((adap->getctrl(adap->data) & SGI_I2C_NACK) == 0) | |
1635 | return 0; | |
1636 | udelay(1); | |
1637 | } | |
1638 | ||
1639 | return -ETIMEDOUT; | |
1640 | } | |
1641 | ||
1642 | static int force_idle(struct i2c_algo_sgi_data *adap) | |
1643 | { | |
1644 | int i; | |
1645 | ||
1646 | adap->setctrl(adap->data, SGI_I2C_FORCE_IDLE); | |
1647 | for (i = 0; i < adap->xfer_timeout; i++) { | |
1648 | if ((adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) == 0) | |
1649 | goto out; | |
1650 | udelay(1); | |
1651 | } | |
1652 | return -ETIMEDOUT; | |
1653 | out: | |
1654 | if (adap->getctrl(adap->data) & SGI_I2C_BUS_ERR) | |
1655 | return -EIO; | |
1656 | return 0; | |
1657 | } | |
1658 | ||
1659 | static int do_address(struct i2c_algo_sgi_data *adap, unsigned int addr, | |
1660 | int rd) | |
1661 | { | |
1662 | if (rd) | |
1663 | adap->setctrl(adap->data, SGI_I2C_NOT_IDLE); | |
1664 | /* Check if bus is idle, eventually force it to do so */ | |
1665 | if (adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) | |
1666 | if (force_idle(adap)) | |
1667 | return -EIO; | |
1668 | /* Write out the i2c chip address and specify operation */ | |
1669 | adap->setctrl(adap->data, | |
1670 | SGI_I2C_HOLD_BUS | SGI_I2C_WRITE | SGI_I2C_NOT_IDLE); | |
1671 | if (rd) | |
1672 | addr |= 1; | |
1673 | adap->wdata(adap->data, addr); | |
1674 | if (wait_ack(adap)) | |
1675 | return -EIO; | |
1676 | return 0; | |
1677 | } | |
1678 | ||
1679 | static int i2c_read(struct i2c_algo_sgi_data *adap, unsigned char *buf, | |
1680 | unsigned int len) | |
1681 | { | |
1682 | int i; | |
1683 | ||
1684 | adap->setctrl(adap->data, | |
1685 | SGI_I2C_HOLD_BUS | SGI_I2C_READ | SGI_I2C_NOT_IDLE); | |
1686 | for (i = 0; i < len; i++) { | |
1687 | if (wait_xfer_done(adap)) | |
1688 | return -EIO; | |
1689 | buf[i] = adap->rdata(adap->data); | |
1690 | } | |
1691 | adap->setctrl(adap->data, SGI_I2C_RELEASE_BUS | SGI_I2C_FORCE_IDLE); | |
1692 | ||
1693 | return 0; | |
1694 | ||
1695 | } | |
1696 | ||
1697 | static int i2c_write(struct i2c_algo_sgi_data *adap, unsigned char *buf, | |
1698 | unsigned int len) | |
1699 | { | |
1700 | int i; | |
1701 | ||
1702 | /* We are already in write state */ | |
1703 | for (i = 0; i < len; i++) { | |
1704 | adap->wdata(adap->data, buf[i]); | |
1705 | if (wait_ack(adap)) | |
1706 | return -EIO; | |
1707 | } | |
1708 | return 0; | |
1709 | } | |
1710 | ||
1711 | static int sgi_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, | |
1712 | int num) | |
1713 | { | |
1714 | struct i2c_algo_sgi_data *adap = i2c_adap->algo_data; | |
1715 | struct i2c_msg *p; | |
1716 | int i, err = 0; | |
1717 | ||
1718 | for (i = 0; !err && i < num; i++) { | |
1719 | p = &msgs[i]; | |
1720 | err = do_address(adap, p->addr, p->flags & I2C_M_RD); | |
1721 | if (err || !p->len) | |
1722 | continue; | |
1723 | if (p->flags & I2C_M_RD) | |
1724 | err = i2c_read(adap, p->buf, p->len); | |
1725 | else | |
1726 | err = i2c_write(adap, p->buf, p->len); | |
1727 | } | |
1728 | ||
1729 | return (err < 0) ? err : i; | |
1730 | } | |
1731 | ||
1732 | static u32 sgi_func(struct i2c_adapter *adap) | |
1733 | { | |
1734 | return I2C_FUNC_SMBUS_EMUL; | |
1735 | } | |
1736 | ||
1737 | static const struct i2c_algorithm sgi_algo = { | |
1738 | .master_xfer = sgi_xfer, | |
1739 | .functionality = sgi_func, | |
1740 | }; | |
1741 | ||
1742 | static unsigned i2c_vino_getctrl(void *data) | |
1743 | { | |
1744 | return vino->i2c_control; | |
1745 | } | |
1746 | ||
1747 | static void i2c_vino_setctrl(void *data, unsigned val) | |
1748 | { | |
1749 | vino->i2c_control = val; | |
1750 | } | |
1751 | ||
1752 | static unsigned i2c_vino_rdata(void *data) | |
1753 | { | |
1754 | return vino->i2c_data; | |
1755 | } | |
1756 | ||
1757 | static void i2c_vino_wdata(void *data, unsigned val) | |
1758 | { | |
1759 | vino->i2c_data = val; | |
1760 | } | |
1761 | ||
1762 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = { | |
1763 | .getctrl = &i2c_vino_getctrl, | |
1764 | .setctrl = &i2c_vino_setctrl, | |
1765 | .rdata = &i2c_vino_rdata, | |
1766 | .wdata = &i2c_vino_wdata, | |
1767 | .xfer_timeout = 200, | |
1768 | .ack_timeout = 1000, | |
1769 | }; | |
1770 | ||
1771 | static struct i2c_adapter vino_i2c_adapter = { | |
1772 | .name = "VINO I2C bus", | |
1773 | .id = I2C_HW_SGI_VINO, | |
1774 | .algo = &sgi_algo, | |
1775 | .algo_data = &i2c_sgi_vino_data, | |
1776 | .owner = THIS_MODULE, | |
1777 | }; | |
1778 | ||
d203a7ec RB |
1779 | /* |
1780 | * Prepare VINO for DMA transfer... | |
1781 | * (execute only with vino_lock and input_lock locked) | |
1782 | */ | |
1783 | static int vino_dma_setup(struct vino_channel_settings *vcs, | |
1784 | struct vino_framebuffer *fb) | |
1785 | { | |
1786 | u32 ctrl, intr; | |
1787 | struct sgi_vino_channel *ch; | |
1788 | const struct vino_data_norm *norm; | |
1789 | ||
1790 | dprintk("vino_dma_setup():\n"); | |
1791 | ||
1792 | vcs->field = 0; | |
1793 | fb->frame_counter = 0; | |
1794 | ||
1795 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1796 | norm = &vino_data_norms[vcs->data_norm]; | |
1797 | ||
1798 | ch->page_index = 0; | |
1799 | ch->line_count = 0; | |
1800 | ||
1801 | /* VINO line size register is set 8 bytes less than actual */ | |
1802 | ch->line_size = vcs->line_size - 8; | |
1803 | ||
1804 | /* let VINO know where to transfer data */ | |
1805 | ch->start_desc_tbl = fb->desc_table.dma; | |
1806 | ch->next_4_desc = fb->desc_table.dma; | |
1807 | ||
1808 | /* give vino time to fetch the first four descriptors, 5 usec | |
1809 | * should be more than enough time */ | |
1810 | udelay(VINO_DESC_FETCH_DELAY); | |
1811 | ||
a637a114 LM |
1812 | dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", |
1813 | ch->start_desc_tbl, ch->next_4_desc); | |
1814 | ||
d203a7ec RB |
1815 | /* set the alpha register */ |
1816 | ch->alpha = vcs->alpha; | |
1817 | ||
1818 | /* set clipping registers */ | |
1819 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | | |
1820 | VINO_CLIP_EVEN(norm->even.top + | |
1821 | vcs->clipping.top / 2) | | |
1822 | VINO_CLIP_X(vcs->clipping.left); | |
1823 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + | |
1824 | vcs->clipping.bottom / 2 - 1) | | |
1825 | VINO_CLIP_EVEN(norm->even.top + | |
1826 | vcs->clipping.bottom / 2 - 1) | | |
1827 | VINO_CLIP_X(vcs->clipping.right); | |
d203a7ec RB |
1828 | |
1829 | /* set the size of actual content in the buffer (DECIMATION !) */ | |
1830 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / | |
1831 | vcs->decimation) * | |
1832 | ((vcs->clipping.bottom - vcs->clipping.top) / | |
1833 | vcs->decimation) * | |
1834 | vino_data_formats[vcs->data_format].bpp; | |
1835 | ||
1836 | ch->frame_rate = vcs->framert_reg; | |
1837 | ||
1838 | ctrl = vino->control; | |
1839 | intr = vino->intr_status; | |
1840 | ||
1841 | if (vcs->channel == VINO_CHANNEL_A) { | |
1842 | /* All interrupt conditions for this channel was cleared | |
1843 | * so clear the interrupt status register and enable | |
1844 | * interrupts */ | |
1845 | intr &= ~VINO_INTSTAT_A; | |
1846 | ctrl |= VINO_CTRL_A_INT; | |
1847 | ||
1848 | /* enable synchronization */ | |
1849 | ctrl |= VINO_CTRL_A_SYNC_ENBL; | |
1850 | ||
1851 | /* enable frame assembly */ | |
1852 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; | |
1853 | ||
1854 | /* set decimation used */ | |
1855 | if (vcs->decimation < 2) | |
1856 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; | |
1857 | else { | |
1858 | ctrl |= VINO_CTRL_A_DEC_ENBL; | |
1859 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; | |
1860 | ctrl |= (vcs->decimation - 1) << | |
1861 | VINO_CTRL_A_DEC_SCALE_SHIFT; | |
1862 | } | |
1863 | ||
1864 | /* select input interface */ | |
1865 | if (vcs->input == VINO_INPUT_D1) | |
1866 | ctrl |= VINO_CTRL_A_SELECT; | |
1867 | else | |
1868 | ctrl &= ~VINO_CTRL_A_SELECT; | |
1869 | ||
1870 | /* palette */ | |
1871 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | | |
1872 | VINO_CTRL_A_DITHER); | |
1873 | } else { | |
1874 | intr &= ~VINO_INTSTAT_B; | |
1875 | ctrl |= VINO_CTRL_B_INT; | |
1876 | ||
1877 | ctrl |= VINO_CTRL_B_SYNC_ENBL; | |
1878 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; | |
1879 | ||
1880 | if (vcs->decimation < 2) | |
1881 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; | |
1882 | else { | |
1883 | ctrl |= VINO_CTRL_B_DEC_ENBL; | |
1884 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; | |
1885 | ctrl |= (vcs->decimation - 1) << | |
1886 | VINO_CTRL_B_DEC_SCALE_SHIFT; | |
1887 | ||
1888 | } | |
1889 | if (vcs->input == VINO_INPUT_D1) | |
1890 | ctrl |= VINO_CTRL_B_SELECT; | |
1891 | else | |
1892 | ctrl &= ~VINO_CTRL_B_SELECT; | |
1893 | ||
1894 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | | |
1895 | VINO_CTRL_B_DITHER); | |
1896 | } | |
1897 | ||
1898 | /* set palette */ | |
1899 | fb->data_format = vcs->data_format; | |
1900 | ||
1901 | switch (vcs->data_format) { | |
1902 | case VINO_DATA_FMT_GREY: | |
1903 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1904 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; | |
1905 | break; | |
1906 | case VINO_DATA_FMT_RGB32: | |
1907 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1908 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; | |
1909 | break; | |
1910 | case VINO_DATA_FMT_YUV: | |
1911 | /* nothing needs to be done */ | |
1912 | break; | |
1913 | case VINO_DATA_FMT_RGB332: | |
1914 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1915 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : | |
1916 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; | |
1917 | break; | |
1918 | } | |
1919 | ||
1920 | vino->intr_status = intr; | |
1921 | vino->control = ctrl; | |
1922 | ||
1923 | return 0; | |
1924 | } | |
1925 | ||
1926 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1927 | static inline void vino_dma_start(struct vino_channel_settings *vcs) |
d203a7ec RB |
1928 | { |
1929 | u32 ctrl = vino->control; | |
1930 | ||
1931 | dprintk("vino_dma_start():\n"); | |
1932 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? | |
1933 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; | |
1934 | vino->control = ctrl; | |
1935 | } | |
1936 | ||
1937 | /* (execute only with vino_lock locked) */ | |
a637a114 | 1938 | static inline void vino_dma_stop(struct vino_channel_settings *vcs) |
d203a7ec RB |
1939 | { |
1940 | u32 ctrl = vino->control; | |
1941 | ||
1942 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? | |
1943 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; | |
a637a114 LM |
1944 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
1945 | ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; | |
d203a7ec RB |
1946 | vino->control = ctrl; |
1947 | dprintk("vino_dma_stop():\n"); | |
1948 | } | |
1949 | ||
1950 | /* | |
1951 | * Load dummy page to descriptor registers. This prevents generating of | |
1952 | * spurious interrupts. (execute only with vino_lock locked) | |
1953 | */ | |
1954 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) | |
1955 | { | |
1956 | struct sgi_vino_channel *ch; | |
1957 | ||
1958 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; | |
1959 | ||
1960 | ch->page_index = 0; | |
1961 | ch->line_count = 0; | |
1962 | ||
1963 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; | |
1964 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
1965 | ||
1966 | udelay(VINO_DESC_FETCH_DELAY); | |
1967 | dprintk("channel %c clear interrupt condition\n", | |
1968 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); | |
1969 | } | |
1970 | ||
1971 | static int vino_capture(struct vino_channel_settings *vcs, | |
1972 | struct vino_framebuffer *fb) | |
1973 | { | |
1974 | int err = 0; | |
1975 | unsigned long flags, flags2; | |
1976 | ||
1977 | spin_lock_irqsave(&fb->state_lock, flags); | |
1978 | ||
1979 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
1980 | err = -EBUSY; | |
1981 | fb->state = VINO_FRAMEBUFFER_IN_USE; | |
1982 | ||
1983 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
1984 | ||
1985 | if (err) | |
1986 | return err; | |
1987 | ||
1988 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
1989 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); | |
1990 | ||
1991 | vino_dma_setup(vcs, fb); | |
1992 | vino_dma_start(vcs); | |
1993 | ||
1994 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); | |
1995 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
1996 | ||
1997 | return err; | |
1998 | } | |
1999 | ||
2000 | static | |
2001 | struct vino_framebuffer *vino_capture_enqueue(struct | |
2002 | vino_channel_settings *vcs, | |
2003 | unsigned int index) | |
2004 | { | |
2005 | struct vino_framebuffer *fb; | |
2006 | unsigned long flags; | |
2007 | ||
2008 | dprintk("vino_capture_enqueue():\n"); | |
2009 | ||
2010 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2011 | ||
2012 | fb = vino_queue_add(&vcs->fb_queue, index); | |
2013 | if (fb == NULL) { | |
2014 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " | |
2015 | "queue full?\n"); | |
2016 | goto out; | |
2017 | } | |
2018 | out: | |
2019 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2020 | ||
2021 | return fb; | |
2022 | } | |
2023 | ||
2024 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) | |
2025 | { | |
2026 | struct vino_framebuffer *fb; | |
2027 | unsigned int incoming, id; | |
2028 | int err = 0; | |
a637a114 | 2029 | unsigned long flags; |
d203a7ec RB |
2030 | |
2031 | dprintk("vino_capture_next():\n"); | |
2032 | ||
2033 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2034 | ||
2035 | if (start) { | |
2036 | /* start capture only if capture isn't in progress already */ | |
2037 | if (vcs->capturing) { | |
2038 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2039 | return 0; | |
2040 | } | |
2041 | ||
2042 | } else { | |
2043 | /* capture next frame: | |
2044 | * stop capture if capturing is not set */ | |
2045 | if (!vcs->capturing) { | |
2046 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2047 | return 0; | |
2048 | } | |
2049 | } | |
2050 | ||
2051 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
2052 | if (err) { | |
2053 | dprintk("vino_capture_next(): vino_queue_get_incoming() " | |
2054 | "failed\n"); | |
2055 | err = -EINVAL; | |
2056 | goto out; | |
2057 | } | |
2058 | if (incoming == 0) { | |
2059 | dprintk("vino_capture_next(): no buffers available\n"); | |
2060 | goto out; | |
2061 | } | |
2062 | ||
2063 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2064 | if (fb == NULL) { | |
2065 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); | |
2066 | err = -EINVAL; | |
2067 | goto out; | |
2068 | } | |
2069 | ||
d203a7ec RB |
2070 | if (start) { |
2071 | vcs->capturing = 1; | |
2072 | } | |
2073 | ||
2074 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2075 | ||
2076 | err = vino_capture(vcs, fb); | |
2077 | ||
2078 | return err; | |
2079 | ||
2080 | out: | |
2081 | vcs->capturing = 0; | |
2082 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2083 | ||
2084 | return err; | |
2085 | } | |
2086 | ||
a637a114 | 2087 | static inline int vino_is_capturing(struct vino_channel_settings *vcs) |
d203a7ec RB |
2088 | { |
2089 | int ret; | |
2090 | unsigned long flags; | |
2091 | ||
2092 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2093 | ||
2094 | ret = vcs->capturing; | |
2095 | ||
2096 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2097 | ||
2098 | return ret; | |
2099 | } | |
2100 | ||
2101 | /* waits until a frame is captured */ | |
2102 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) | |
2103 | { | |
2104 | wait_queue_t wait; | |
2105 | int err = 0; | |
2106 | ||
2107 | dprintk("vino_wait_for_frame():\n"); | |
2108 | ||
2109 | init_waitqueue_entry(&wait, current); | |
2110 | /* add ourselves into wait queue */ | |
2111 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
d203a7ec RB |
2112 | |
2113 | /* to ensure that schedule_timeout will return immediately | |
f3a43d30 | 2114 | * if VINO interrupt was triggered meanwhile */ |
818ca471 | 2115 | schedule_timeout_interruptible(msecs_to_jiffies(100)); |
d203a7ec RB |
2116 | |
2117 | if (signal_pending(current)) | |
2118 | err = -EINTR; | |
2119 | ||
2120 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); | |
2121 | ||
2122 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", | |
2123 | err ? "failed" : "ok"); | |
2124 | ||
2125 | return err; | |
2126 | } | |
2127 | ||
2128 | /* the function assumes that PAGE_SIZE % 4 == 0 */ | |
2129 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { | |
2130 | unsigned char *pageptr; | |
2131 | unsigned int page, i; | |
2132 | unsigned char a; | |
2133 | ||
2134 | for (page = 0; page < fb->desc_table.page_count; page++) { | |
2135 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; | |
2136 | ||
2137 | for (i = 0; i < PAGE_SIZE; i += 4) { | |
2138 | a = pageptr[0]; | |
2139 | pageptr[0] = pageptr[3]; | |
2140 | pageptr[1] = pageptr[2]; | |
2141 | pageptr[2] = pageptr[1]; | |
2142 | pageptr[3] = a; | |
2143 | pageptr += 4; | |
2144 | } | |
2145 | } | |
2146 | } | |
2147 | ||
2148 | /* checks if the buffer is in correct state and syncs data */ | |
2149 | static int vino_check_buffer(struct vino_channel_settings *vcs, | |
2150 | struct vino_framebuffer *fb) | |
2151 | { | |
2152 | int err = 0; | |
2153 | unsigned long flags; | |
2154 | ||
2155 | dprintk("vino_check_buffer():\n"); | |
2156 | ||
2157 | spin_lock_irqsave(&fb->state_lock, flags); | |
2158 | switch (fb->state) { | |
2159 | case VINO_FRAMEBUFFER_IN_USE: | |
2160 | err = -EIO; | |
2161 | break; | |
2162 | case VINO_FRAMEBUFFER_READY: | |
2163 | vino_sync_buffer(fb); | |
2164 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2165 | break; | |
2166 | default: | |
2167 | err = -EINVAL; | |
2168 | } | |
2169 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2170 | ||
2171 | if (!err) { | |
2172 | if (vino_pixel_conversion | |
2173 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { | |
2174 | vino_convert_to_rgba(fb); | |
2175 | } | |
2176 | } else if (err && (err != -EINVAL)) { | |
2177 | dprintk("vino_check_buffer(): buffer not ready\n"); | |
2178 | ||
2179 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2180 | vino_dma_stop(vcs); | |
2181 | vino_clear_interrupt(vcs); | |
2182 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2183 | } | |
2184 | ||
2185 | return err; | |
2186 | } | |
2187 | ||
2188 | /* forcefully terminates capture */ | |
2189 | static void vino_capture_stop(struct vino_channel_settings *vcs) | |
2190 | { | |
2191 | unsigned int incoming = 0, outgoing = 0, id; | |
2192 | unsigned long flags, flags2; | |
2193 | ||
2194 | dprintk("vino_capture_stop():\n"); | |
2195 | ||
2196 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
a637a114 | 2197 | |
d203a7ec RB |
2198 | /* unset capturing to stop queue processing */ |
2199 | vcs->capturing = 0; | |
2200 | ||
2201 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); | |
2202 | ||
2203 | vino_dma_stop(vcs); | |
2204 | vino_clear_interrupt(vcs); | |
2205 | ||
2206 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); | |
2207 | ||
2208 | /* remove all items from the queue */ | |
2209 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2210 | dprintk("vino_capture_stop(): " | |
2211 | "vino_queue_get_incoming() failed\n"); | |
2212 | goto out; | |
2213 | } | |
2214 | while (incoming > 0) { | |
2215 | vino_queue_transfer(&vcs->fb_queue); | |
2216 | ||
2217 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { | |
2218 | dprintk("vino_capture_stop(): " | |
2219 | "vino_queue_get_incoming() failed\n"); | |
2220 | goto out; | |
2221 | } | |
2222 | } | |
2223 | ||
2224 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2225 | dprintk("vino_capture_stop(): " | |
2226 | "vino_queue_get_outgoing() failed\n"); | |
2227 | goto out; | |
2228 | } | |
2229 | while (outgoing > 0) { | |
2230 | vino_queue_remove(&vcs->fb_queue, &id); | |
2231 | ||
2232 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
2233 | dprintk("vino_capture_stop(): " | |
2234 | "vino_queue_get_outgoing() failed\n"); | |
2235 | goto out; | |
2236 | } | |
2237 | } | |
2238 | ||
2239 | out: | |
2240 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2241 | } | |
2242 | ||
a637a114 | 2243 | #if 0 |
d203a7ec RB |
2244 | static int vino_capture_failed(struct vino_channel_settings *vcs) |
2245 | { | |
2246 | struct vino_framebuffer *fb; | |
2247 | unsigned long flags; | |
2248 | unsigned int i; | |
2249 | int ret; | |
2250 | ||
2251 | dprintk("vino_capture_failed():\n"); | |
2252 | ||
2253 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); | |
2254 | ||
2255 | vino_dma_stop(vcs); | |
2256 | vino_clear_interrupt(vcs); | |
2257 | ||
2258 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); | |
2259 | ||
2260 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); | |
2261 | if (ret == VINO_QUEUE_ERROR) { | |
2262 | dprintk("vino_queue_get_incoming() failed\n"); | |
2263 | return -EINVAL; | |
2264 | } | |
2265 | if (i == 0) { | |
2266 | /* no buffers to process */ | |
2267 | return 0; | |
2268 | } | |
2269 | ||
2270 | fb = vino_queue_peek(&vcs->fb_queue, &i); | |
2271 | if (fb == NULL) { | |
2272 | dprintk("vino_queue_peek() failed\n"); | |
2273 | return -EINVAL; | |
2274 | } | |
2275 | ||
2276 | spin_lock_irqsave(&fb->state_lock, flags); | |
2277 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { | |
2278 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2279 | vino_queue_transfer(&vcs->fb_queue); | |
2280 | vino_queue_remove(&vcs->fb_queue, &i); | |
2281 | /* we should actually discard the newest frame, | |
2282 | * but who cares ... */ | |
2283 | } | |
2284 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2285 | ||
2286 | return 0; | |
2287 | } | |
a637a114 LM |
2288 | #endif |
2289 | ||
2290 | static void vino_skip_frame(struct vino_channel_settings *vcs) | |
2291 | { | |
2292 | struct vino_framebuffer *fb; | |
2293 | unsigned long flags; | |
2294 | unsigned int id; | |
2295 | ||
2296 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2297 | fb = vino_queue_peek(&vcs->fb_queue, &id); | |
2298 | if (!fb) { | |
2299 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2300 | dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); | |
2301 | return; | |
2302 | } | |
2303 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2304 | ||
2305 | spin_lock_irqsave(&fb->state_lock, flags); | |
2306 | fb->state = VINO_FRAMEBUFFER_UNUSED; | |
2307 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2308 | ||
2309 | vino_capture_next(vcs, 0); | |
2310 | } | |
d203a7ec | 2311 | |
a637a114 | 2312 | static void vino_frame_done(struct vino_channel_settings *vcs) |
d203a7ec RB |
2313 | { |
2314 | struct vino_framebuffer *fb; | |
2315 | unsigned long flags; | |
2316 | ||
2317 | spin_lock_irqsave(&vcs->capture_lock, flags); | |
2318 | fb = vino_queue_transfer(&vcs->fb_queue); | |
2319 | if (!fb) { | |
2320 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2321 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); | |
2322 | return; | |
2323 | } | |
2324 | spin_unlock_irqrestore(&vcs->capture_lock, flags); | |
2325 | ||
a637a114 LM |
2326 | fb->frame_counter = vcs->int_data.frame_counter; |
2327 | memcpy(&fb->timestamp, &vcs->int_data.timestamp, | |
2328 | sizeof(struct timeval)); | |
d203a7ec RB |
2329 | |
2330 | spin_lock_irqsave(&fb->state_lock, flags); | |
2331 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) | |
2332 | fb->state = VINO_FRAMEBUFFER_READY; | |
2333 | spin_unlock_irqrestore(&fb->state_lock, flags); | |
2334 | ||
2335 | wake_up(&vcs->fb_queue.frame_wait_queue); | |
2336 | ||
2337 | vino_capture_next(vcs, 0); | |
2338 | } | |
2339 | ||
a637a114 LM |
2340 | static void vino_capture_tasklet(unsigned long channel) { |
2341 | struct vino_channel_settings *vcs; | |
2342 | ||
2343 | vcs = (channel == VINO_CHANNEL_A) | |
2344 | ? &vino_drvdata->a : &vino_drvdata->b; | |
2345 | ||
2346 | if (vcs->int_data.skip) | |
2347 | vcs->int_data.skip_count++; | |
2348 | ||
2349 | if (vcs->int_data.skip && (vcs->int_data.skip_count | |
2350 | <= VINO_MAX_FRAME_SKIP_COUNT)) { | |
2351 | vino_skip_frame(vcs); | |
2352 | } else { | |
2353 | vcs->int_data.skip_count = 0; | |
2354 | vino_frame_done(vcs); | |
2355 | } | |
2356 | } | |
2357 | ||
7d12e780 | 2358 | static irqreturn_t vino_interrupt(int irq, void *dev_id) |
d203a7ec | 2359 | { |
a637a114 | 2360 | u32 ctrl, intr; |
d203a7ec | 2361 | unsigned int fc_a, fc_b; |
a637a114 LM |
2362 | int handled_a = 0, skip_a = 0, done_a = 0; |
2363 | int handled_b = 0, skip_b = 0, done_b = 0; | |
2364 | ||
2365 | #ifdef VINO_DEBUG_INT | |
2366 | int loop = 0; | |
2367 | unsigned int line_count = vino->a.line_count, | |
2368 | page_index = vino->a.page_index, | |
2369 | field_counter = vino->a.field_counter, | |
2370 | start_desc_tbl = vino->a.start_desc_tbl, | |
2371 | next_4_desc = vino->a.next_4_desc; | |
2372 | unsigned int line_count_2, | |
2373 | page_index_2, | |
2374 | field_counter_2, | |
2375 | start_desc_tbl_2, | |
2376 | next_4_desc_2; | |
2377 | #endif | |
d203a7ec RB |
2378 | |
2379 | spin_lock(&vino_drvdata->vino_lock); | |
2380 | ||
a637a114 LM |
2381 | while ((intr = vino->intr_status)) { |
2382 | fc_a = vino->a.field_counter >> 1; | |
2383 | fc_b = vino->b.field_counter >> 1; | |
2384 | ||
2385 | /* handle error-interrupts in some special way ? | |
2386 | * --> skips frames */ | |
2387 | if (intr & VINO_INTSTAT_A) { | |
2388 | if (intr & VINO_INTSTAT_A_EOF) { | |
2389 | vino_drvdata->a.field++; | |
2390 | if (vino_drvdata->a.field > 1) { | |
2391 | vino_dma_stop(&vino_drvdata->a); | |
2392 | vino_clear_interrupt(&vino_drvdata->a); | |
2393 | vino_drvdata->a.field = 0; | |
2394 | done_a = 1; | |
2395 | } else { | |
2396 | if (vino->a.page_index | |
2397 | != vino_drvdata->a.line_size) { | |
2398 | vino->a.line_count = 0; | |
2399 | vino->a.page_index = | |
2400 | vino_drvdata-> | |
2401 | a.line_size; | |
2402 | vino->a.next_4_desc = | |
2403 | vino->a.start_desc_tbl; | |
2404 | } | |
2405 | } | |
2406 | dprintk("channel A end-of-field " | |
2407 | "interrupt: %04x\n", intr); | |
2408 | } else { | |
d203a7ec RB |
2409 | vino_dma_stop(&vino_drvdata->a); |
2410 | vino_clear_interrupt(&vino_drvdata->a); | |
2411 | vino_drvdata->a.field = 0; | |
a637a114 LM |
2412 | skip_a = 1; |
2413 | dprintk("channel A error interrupt: %04x\n", | |
2414 | intr); | |
d203a7ec | 2415 | } |
a637a114 LM |
2416 | |
2417 | #ifdef VINO_DEBUG_INT | |
2418 | line_count_2 = vino->a.line_count; | |
2419 | page_index_2 = vino->a.page_index; | |
2420 | field_counter_2 = vino->a.field_counter; | |
2421 | start_desc_tbl_2 = vino->a.start_desc_tbl; | |
2422 | next_4_desc_2 = vino->a.next_4_desc; | |
2423 | ||
2424 | printk("intr = %04x, loop = %d, field = %d\n", | |
2425 | intr, loop, vino_drvdata->a.field); | |
2426 | printk("1- line count = %04d, page index = %04d, " | |
2427 | "start = %08x, next = %08x\n" | |
2428 | " fieldc = %d, framec = %d\n", | |
2429 | line_count, page_index, start_desc_tbl, | |
2430 | next_4_desc, field_counter, fc_a); | |
2431 | printk("12-line count = %04d, page index = %04d, " | |
2432 | " start = %08x, next = %08x\n", | |
2433 | line_count_2, page_index_2, start_desc_tbl_2, | |
2434 | next_4_desc_2); | |
2435 | ||
2436 | if (done_a) | |
2437 | printk("\n"); | |
2438 | #endif | |
d203a7ec | 2439 | } |
a637a114 LM |
2440 | |
2441 | if (intr & VINO_INTSTAT_B) { | |
2442 | if (intr & VINO_INTSTAT_B_EOF) { | |
2443 | vino_drvdata->b.field++; | |
2444 | if (vino_drvdata->b.field > 1) { | |
2445 | vino_dma_stop(&vino_drvdata->b); | |
2446 | vino_clear_interrupt(&vino_drvdata->b); | |
2447 | vino_drvdata->b.field = 0; | |
2448 | done_b = 1; | |
2449 | } | |
2450 | dprintk("channel B end-of-field " | |
2451 | "interrupt: %04x\n", intr); | |
2452 | } else { | |
d203a7ec RB |
2453 | vino_dma_stop(&vino_drvdata->b); |
2454 | vino_clear_interrupt(&vino_drvdata->b); | |
2455 | vino_drvdata->b.field = 0; | |
a637a114 LM |
2456 | skip_b = 1; |
2457 | dprintk("channel B error interrupt: %04x\n", | |
2458 | intr); | |
d203a7ec | 2459 | } |
d203a7ec | 2460 | } |
d203a7ec | 2461 | |
a637a114 LM |
2462 | /* Always remember to clear interrupt status. |
2463 | * Disable VINO interrupts while we do this. */ | |
2464 | ctrl = vino->control; | |
2465 | vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); | |
2466 | vino->intr_status = ~intr; | |
2467 | vino->control = ctrl; | |
d203a7ec | 2468 | |
a637a114 | 2469 | spin_unlock(&vino_drvdata->vino_lock); |
d203a7ec | 2470 | |
a637a114 LM |
2471 | if ((!handled_a) && (done_a || skip_a)) { |
2472 | if (!skip_a) { | |
2473 | do_gettimeofday(&vino_drvdata-> | |
2474 | a.int_data.timestamp); | |
2475 | vino_drvdata->a.int_data.frame_counter = fc_a; | |
2476 | } | |
2477 | vino_drvdata->a.int_data.skip = skip_a; | |
2478 | ||
2479 | dprintk("channel A %s, interrupt: %d\n", | |
2480 | skip_a ? "skipping frame" : "frame done", | |
2481 | intr); | |
2482 | tasklet_hi_schedule(&vino_tasklet_a); | |
2483 | handled_a = 1; | |
2484 | } | |
2485 | ||
2486 | if ((!handled_b) && (done_b || skip_b)) { | |
2487 | if (!skip_b) { | |
2488 | do_gettimeofday(&vino_drvdata-> | |
2489 | b.int_data.timestamp); | |
2490 | vino_drvdata->b.int_data.frame_counter = fc_b; | |
2491 | } | |
2492 | vino_drvdata->b.int_data.skip = skip_b; | |
2493 | ||
2494 | dprintk("channel B %s, interrupt: %d\n", | |
2495 | skip_b ? "skipping frame" : "frame done", | |
2496 | intr); | |
2497 | tasklet_hi_schedule(&vino_tasklet_b); | |
2498 | handled_b = 1; | |
2499 | } | |
2500 | ||
2501 | #ifdef VINO_DEBUG_INT | |
2502 | loop++; | |
2503 | #endif | |
2504 | spin_lock(&vino_drvdata->vino_lock); | |
d203a7ec RB |
2505 | } |
2506 | ||
a637a114 LM |
2507 | spin_unlock(&vino_drvdata->vino_lock); |
2508 | ||
d203a7ec RB |
2509 | return IRQ_HANDLED; |
2510 | } | |
2511 | ||
2512 | /* VINO video input management */ | |
2513 | ||
2514 | static int vino_get_saa7191_input(int input) | |
2515 | { | |
2516 | switch (input) { | |
2517 | case VINO_INPUT_COMPOSITE: | |
2518 | return SAA7191_INPUT_COMPOSITE; | |
2519 | case VINO_INPUT_SVIDEO: | |
2520 | return SAA7191_INPUT_SVIDEO; | |
2521 | default: | |
2522 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " | |
2523 | "invalid input!\n"); | |
2524 | return -1; | |
2525 | } | |
2526 | } | |
2527 | ||
d203a7ec RB |
2528 | /* execute with input_lock locked */ |
2529 | static int vino_is_input_owner(struct vino_channel_settings *vcs) | |
2530 | { | |
2531 | switch(vcs->input) { | |
2532 | case VINO_INPUT_COMPOSITE: | |
2533 | case VINO_INPUT_SVIDEO: | |
48f4dacb | 2534 | return vino_drvdata->decoder_owner == vcs->channel; |
d203a7ec | 2535 | case VINO_INPUT_D1: |
48f4dacb | 2536 | return vino_drvdata->camera_owner == vcs->channel; |
d203a7ec RB |
2537 | default: |
2538 | return 0; | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | static int vino_acquire_input(struct vino_channel_settings *vcs) | |
2543 | { | |
a637a114 | 2544 | unsigned long flags; |
d203a7ec RB |
2545 | int ret = 0; |
2546 | ||
2547 | dprintk("vino_acquire_input():\n"); | |
2548 | ||
a637a114 | 2549 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2550 | |
2551 | /* First try D1 and then SAA7191 */ | |
48f4dacb HV |
2552 | if (vino_drvdata->camera |
2553 | && (vino_drvdata->camera_owner == VINO_NO_CHANNEL)) { | |
2554 | vino_drvdata->camera_owner = vcs->channel; | |
d203a7ec RB |
2555 | vcs->input = VINO_INPUT_D1; |
2556 | vcs->data_norm = VINO_DATA_NORM_D1; | |
48f4dacb HV |
2557 | } else if (vino_drvdata->decoder |
2558 | && (vino_drvdata->decoder_owner == VINO_NO_CHANNEL)) { | |
cf4e9484 HV |
2559 | int input; |
2560 | int data_norm; | |
2561 | v4l2_std_id norm; | |
2562 | struct v4l2_routing route = { 0, 0 }; | |
d203a7ec | 2563 | |
a637a114 LM |
2564 | input = VINO_INPUT_COMPOSITE; |
2565 | ||
cf4e9484 | 2566 | route.input = vino_get_saa7191_input(input); |
48f4dacb | 2567 | ret = decoder_call(video, s_routing, &route); |
a637a114 LM |
2568 | if (ret) { |
2569 | ret = -EINVAL; | |
2570 | goto out; | |
2571 | } | |
2572 | ||
2573 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec | 2574 | |
a637a114 LM |
2575 | /* Don't hold spinlocks while auto-detecting norm |
2576 | * as it may take a while... */ | |
d203a7ec | 2577 | |
48f4dacb | 2578 | ret = decoder_call(video, querystd, &norm); |
cf4e9484 HV |
2579 | if (!ret) { |
2580 | for (data_norm = 0; data_norm < 3; data_norm++) { | |
2581 | if (vino_data_norms[data_norm].std & norm) | |
2582 | break; | |
2583 | } | |
2584 | if (data_norm == 3) | |
2585 | data_norm = VINO_DATA_NORM_PAL; | |
48f4dacb | 2586 | ret = decoder_call(tuner, s_std, norm); |
a637a114 LM |
2587 | } |
2588 | ||
2589 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
2590 | ||
2591 | if (ret) { | |
2592 | ret = -EINVAL; | |
2593 | goto out; | |
2594 | } | |
2595 | ||
48f4dacb | 2596 | vino_drvdata->decoder_owner = vcs->channel; |
a637a114 LM |
2597 | |
2598 | vcs->input = input; | |
2599 | vcs->data_norm = data_norm; | |
d203a7ec RB |
2600 | } else { |
2601 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? | |
2602 | vino_drvdata->b.input : vino_drvdata->a.input; | |
2603 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? | |
2604 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; | |
2605 | } | |
2606 | ||
2607 | if (vcs->input == VINO_INPUT_NONE) { | |
2608 | ret = -ENODEV; | |
2609 | goto out; | |
2610 | } | |
2611 | ||
a637a114 LM |
2612 | vino_set_default_clipping(vcs); |
2613 | vino_set_default_scaling(vcs); | |
2614 | vino_set_default_framerate(vcs); | |
d203a7ec RB |
2615 | |
2616 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); | |
2617 | ||
2618 | out: | |
a637a114 | 2619 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2620 | |
2621 | return ret; | |
2622 | } | |
2623 | ||
2624 | static int vino_set_input(struct vino_channel_settings *vcs, int input) | |
2625 | { | |
2626 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2627 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2628 | unsigned long flags; |
d203a7ec RB |
2629 | int ret = 0; |
2630 | ||
2631 | dprintk("vino_set_input():\n"); | |
2632 | ||
a637a114 | 2633 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2634 | |
2635 | if (vcs->input == input) | |
2636 | goto out; | |
2637 | ||
a637a114 | 2638 | switch (input) { |
d203a7ec RB |
2639 | case VINO_INPUT_COMPOSITE: |
2640 | case VINO_INPUT_SVIDEO: | |
48f4dacb | 2641 | if (!vino_drvdata->decoder) { |
d203a7ec RB |
2642 | ret = -EINVAL; |
2643 | goto out; | |
2644 | } | |
2645 | ||
48f4dacb HV |
2646 | if (vino_drvdata->decoder_owner == VINO_NO_CHANNEL) { |
2647 | vino_drvdata->decoder_owner = vcs->channel; | |
d203a7ec RB |
2648 | } |
2649 | ||
48f4dacb | 2650 | if (vino_drvdata->decoder_owner == vcs->channel) { |
a637a114 | 2651 | int data_norm; |
cf4e9484 HV |
2652 | v4l2_std_id norm; |
2653 | struct v4l2_routing route = { 0, 0 }; | |
d203a7ec | 2654 | |
cf4e9484 | 2655 | route.input = vino_get_saa7191_input(input); |
48f4dacb | 2656 | ret = decoder_call(video, s_routing, &route); |
a637a114 | 2657 | if (ret) { |
48f4dacb | 2658 | vino_drvdata->decoder_owner = VINO_NO_CHANNEL; |
a637a114 LM |
2659 | ret = -EINVAL; |
2660 | goto out; | |
2661 | } | |
2662 | ||
2663 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
2664 | ||
2665 | /* Don't hold spinlocks while auto-detecting norm | |
2666 | * as it may take a while... */ | |
2667 | ||
48f4dacb | 2668 | ret = decoder_call(video, querystd, &norm); |
cf4e9484 HV |
2669 | if (!ret) { |
2670 | for (data_norm = 0; data_norm < 3; data_norm++) { | |
2671 | if (vino_data_norms[data_norm].std & norm) | |
2672 | break; | |
2673 | } | |
2674 | if (data_norm == 3) | |
2675 | data_norm = VINO_DATA_NORM_PAL; | |
48f4dacb | 2676 | ret = decoder_call(tuner, s_std, norm); |
a637a114 | 2677 | } |
d203a7ec | 2678 | |
a637a114 LM |
2679 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
2680 | ||
2681 | if (ret) { | |
48f4dacb | 2682 | vino_drvdata->decoder_owner = VINO_NO_CHANNEL; |
a637a114 LM |
2683 | ret = -EINVAL; |
2684 | goto out; | |
2685 | } | |
2686 | ||
2687 | vcs->input = input; | |
2688 | vcs->data_norm = data_norm; | |
d203a7ec | 2689 | } else { |
a637a114 | 2690 | if (input != vcs2->input) { |
d203a7ec RB |
2691 | ret = -EBUSY; |
2692 | goto out; | |
2693 | } | |
2694 | ||
2695 | vcs->input = input; | |
2696 | vcs->data_norm = vcs2->data_norm; | |
2697 | } | |
2698 | ||
48f4dacb | 2699 | if (vino_drvdata->camera_owner == vcs->channel) { |
d203a7ec RB |
2700 | /* Transfer the ownership or release the input */ |
2701 | if (vcs2->input == VINO_INPUT_D1) { | |
48f4dacb | 2702 | vino_drvdata->camera_owner = vcs2->channel; |
d203a7ec | 2703 | } else { |
48f4dacb | 2704 | vino_drvdata->camera_owner = VINO_NO_CHANNEL; |
d203a7ec RB |
2705 | } |
2706 | } | |
2707 | break; | |
2708 | case VINO_INPUT_D1: | |
48f4dacb | 2709 | if (!vino_drvdata->camera) { |
d203a7ec RB |
2710 | ret = -EINVAL; |
2711 | goto out; | |
2712 | } | |
2713 | ||
48f4dacb HV |
2714 | if (vino_drvdata->camera_owner == VINO_NO_CHANNEL) |
2715 | vino_drvdata->camera_owner = vcs->channel; | |
d203a7ec | 2716 | |
48f4dacb | 2717 | if (vino_drvdata->decoder_owner == vcs->channel) { |
d203a7ec RB |
2718 | /* Transfer the ownership or release the input */ |
2719 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || | |
2720 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
48f4dacb | 2721 | vino_drvdata->decoder_owner = vcs2->channel; |
d203a7ec | 2722 | } else { |
48f4dacb | 2723 | vino_drvdata->decoder_owner = VINO_NO_CHANNEL; |
d203a7ec RB |
2724 | } |
2725 | } | |
2726 | ||
2727 | vcs->input = input; | |
2728 | vcs->data_norm = VINO_DATA_NORM_D1; | |
2729 | break; | |
2730 | default: | |
2731 | ret = -EINVAL; | |
2732 | goto out; | |
2733 | } | |
2734 | ||
2735 | vino_set_default_clipping(vcs); | |
a637a114 | 2736 | vino_set_default_scaling(vcs); |
d203a7ec RB |
2737 | vino_set_default_framerate(vcs); |
2738 | ||
2739 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); | |
2740 | ||
2741 | out: | |
a637a114 | 2742 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2743 | |
2744 | return ret; | |
2745 | } | |
2746 | ||
2747 | static void vino_release_input(struct vino_channel_settings *vcs) | |
2748 | { | |
2749 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? | |
2750 | &vino_drvdata->b : &vino_drvdata->a; | |
a637a114 | 2751 | unsigned long flags; |
d203a7ec RB |
2752 | |
2753 | dprintk("vino_release_input():\n"); | |
2754 | ||
a637a114 | 2755 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2756 | |
2757 | /* Release ownership of the channel | |
2758 | * and if the other channel takes input from | |
2759 | * the same source, transfer the ownership */ | |
48f4dacb | 2760 | if (vino_drvdata->camera_owner == vcs->channel) { |
d203a7ec | 2761 | if (vcs2->input == VINO_INPUT_D1) { |
48f4dacb | 2762 | vino_drvdata->camera_owner = vcs2->channel; |
d203a7ec | 2763 | } else { |
48f4dacb | 2764 | vino_drvdata->camera_owner = VINO_NO_CHANNEL; |
d203a7ec | 2765 | } |
48f4dacb | 2766 | } else if (vino_drvdata->decoder_owner == vcs->channel) { |
d203a7ec RB |
2767 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || |
2768 | (vcs2->input == VINO_INPUT_SVIDEO)) { | |
48f4dacb | 2769 | vino_drvdata->decoder_owner = vcs2->channel; |
d203a7ec | 2770 | } else { |
48f4dacb | 2771 | vino_drvdata->decoder_owner = VINO_NO_CHANNEL; |
d203a7ec RB |
2772 | } |
2773 | } | |
2774 | vcs->input = VINO_INPUT_NONE; | |
2775 | ||
a637a114 | 2776 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2777 | } |
2778 | ||
2779 | /* execute with input_lock locked */ | |
2780 | static int vino_set_data_norm(struct vino_channel_settings *vcs, | |
a637a114 LM |
2781 | unsigned int data_norm, |
2782 | unsigned long *flags) | |
d203a7ec | 2783 | { |
a637a114 LM |
2784 | int err = 0; |
2785 | ||
2786 | if (data_norm == vcs->data_norm) | |
2787 | return 0; | |
d203a7ec RB |
2788 | |
2789 | switch (vcs->input) { | |
2790 | case VINO_INPUT_D1: | |
2791 | /* only one "norm" supported */ | |
cf4e9484 | 2792 | if (data_norm != VINO_DATA_NORM_D1) |
d203a7ec RB |
2793 | return -EINVAL; |
2794 | break; | |
2795 | case VINO_INPUT_COMPOSITE: | |
a637a114 | 2796 | case VINO_INPUT_SVIDEO: { |
cf4e9484 HV |
2797 | v4l2_std_id norm; |
2798 | ||
a637a114 LM |
2799 | if ((data_norm != VINO_DATA_NORM_PAL) |
2800 | && (data_norm != VINO_DATA_NORM_NTSC) | |
cf4e9484 | 2801 | && (data_norm != VINO_DATA_NORM_SECAM)) |
a637a114 | 2802 | return -EINVAL; |
d203a7ec | 2803 | |
a637a114 LM |
2804 | spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); |
2805 | ||
2806 | /* Don't hold spinlocks while setting norm | |
2807 | * as it may take a while... */ | |
2808 | ||
cf4e9484 | 2809 | norm = vino_data_norms[data_norm].std; |
48f4dacb | 2810 | err = decoder_call(tuner, s_std, norm); |
a637a114 LM |
2811 | |
2812 | spin_lock_irqsave(&vino_drvdata->input_lock, *flags); | |
2813 | ||
2814 | if (err) | |
2815 | goto out; | |
d203a7ec | 2816 | |
d203a7ec | 2817 | vcs->data_norm = data_norm; |
a637a114 LM |
2818 | |
2819 | vino_set_default_clipping(vcs); | |
2820 | vino_set_default_scaling(vcs); | |
2821 | vino_set_default_framerate(vcs); | |
d203a7ec | 2822 | break; |
a637a114 | 2823 | } |
d203a7ec RB |
2824 | default: |
2825 | return -EINVAL; | |
2826 | } | |
2827 | ||
a637a114 LM |
2828 | out: |
2829 | return err; | |
d203a7ec RB |
2830 | } |
2831 | ||
2832 | /* V4L2 helper functions */ | |
2833 | ||
2834 | static int vino_find_data_format(__u32 pixelformat) | |
2835 | { | |
2836 | int i; | |
2837 | ||
2838 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { | |
2839 | if (vino_data_formats[i].pixelformat == pixelformat) | |
2840 | return i; | |
2841 | } | |
2842 | ||
2843 | return VINO_DATA_FMT_NONE; | |
2844 | } | |
2845 | ||
c49cb361 | 2846 | static int vino_int_enum_input(struct vino_channel_settings *vcs, __u32 index) |
d203a7ec RB |
2847 | { |
2848 | int input = VINO_INPUT_NONE; | |
a637a114 | 2849 | unsigned long flags; |
d203a7ec | 2850 | |
a637a114 | 2851 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
48f4dacb | 2852 | if (vino_drvdata->decoder && vino_drvdata->camera) { |
d203a7ec RB |
2853 | switch (index) { |
2854 | case 0: | |
2855 | input = VINO_INPUT_COMPOSITE; | |
2856 | break; | |
2857 | case 1: | |
2858 | input = VINO_INPUT_SVIDEO; | |
2859 | break; | |
2860 | case 2: | |
2861 | input = VINO_INPUT_D1; | |
2862 | break; | |
2863 | } | |
48f4dacb | 2864 | } else if (vino_drvdata->decoder) { |
d203a7ec RB |
2865 | switch (index) { |
2866 | case 0: | |
2867 | input = VINO_INPUT_COMPOSITE; | |
2868 | break; | |
2869 | case 1: | |
2870 | input = VINO_INPUT_SVIDEO; | |
2871 | break; | |
2872 | } | |
48f4dacb | 2873 | } else if (vino_drvdata->camera) { |
d203a7ec RB |
2874 | switch (index) { |
2875 | case 0: | |
2876 | input = VINO_INPUT_D1; | |
2877 | break; | |
2878 | } | |
2879 | } | |
a637a114 | 2880 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2881 | |
2882 | return input; | |
2883 | } | |
2884 | ||
2885 | /* execute with input_lock locked */ | |
2886 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) | |
2887 | { | |
2888 | __u32 index = 0; | |
2889 | // FIXME: detect when no inputs available | |
2890 | ||
48f4dacb | 2891 | if (vino_drvdata->decoder && vino_drvdata->camera) { |
d203a7ec RB |
2892 | switch (vcs->input) { |
2893 | case VINO_INPUT_COMPOSITE: | |
2894 | index = 0; | |
2895 | break; | |
2896 | case VINO_INPUT_SVIDEO: | |
2897 | index = 1; | |
2898 | break; | |
2899 | case VINO_INPUT_D1: | |
2900 | index = 2; | |
2901 | break; | |
2902 | } | |
48f4dacb | 2903 | } else if (vino_drvdata->decoder) { |
d203a7ec RB |
2904 | switch (vcs->input) { |
2905 | case VINO_INPUT_COMPOSITE: | |
2906 | index = 0; | |
2907 | break; | |
2908 | case VINO_INPUT_SVIDEO: | |
2909 | index = 1; | |
2910 | break; | |
2911 | } | |
48f4dacb | 2912 | } else if (vino_drvdata->camera) { |
d203a7ec RB |
2913 | switch (vcs->input) { |
2914 | case VINO_INPUT_D1: | |
2915 | index = 0; | |
2916 | break; | |
2917 | } | |
2918 | } | |
2919 | ||
2920 | return index; | |
2921 | } | |
2922 | ||
2923 | /* V4L2 ioctls */ | |
2924 | ||
c49cb361 HV |
2925 | static int vino_querycap(struct file *file, void *__fh, |
2926 | struct v4l2_capability *cap) | |
d203a7ec RB |
2927 | { |
2928 | memset(cap, 0, sizeof(struct v4l2_capability)); | |
2929 | ||
2930 | strcpy(cap->driver, vino_driver_name); | |
2931 | strcpy(cap->card, vino_driver_description); | |
2932 | strcpy(cap->bus_info, vino_bus_name); | |
2933 | cap->version = VINO_VERSION_CODE; | |
2934 | cap->capabilities = | |
2935 | V4L2_CAP_VIDEO_CAPTURE | | |
2936 | V4L2_CAP_STREAMING; | |
2937 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE | |
c49cb361 | 2938 | return 0; |
d203a7ec RB |
2939 | } |
2940 | ||
c49cb361 | 2941 | static int vino_enum_input(struct file *file, void *__fh, |
d203a7ec RB |
2942 | struct v4l2_input *i) |
2943 | { | |
c49cb361 | 2944 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
2945 | __u32 index = i->index; |
2946 | int input; | |
2947 | dprintk("requested index = %d\n", index); | |
2948 | ||
c49cb361 | 2949 | input = vino_int_enum_input(vcs, index); |
d203a7ec RB |
2950 | if (input == VINO_INPUT_NONE) |
2951 | return -EINVAL; | |
2952 | ||
2953 | memset(i, 0, sizeof(struct v4l2_input)); | |
2954 | ||
2955 | i->index = index; | |
2956 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
2957 | i->std = vino_inputs[input].std; | |
2958 | strcpy(i->name, vino_inputs[input].name); | |
2959 | ||
cf4e9484 | 2960 | if (input == VINO_INPUT_COMPOSITE || input == VINO_INPUT_SVIDEO) |
48f4dacb | 2961 | decoder_call(video, g_input_status, &i->status); |
d203a7ec RB |
2962 | return 0; |
2963 | } | |
2964 | ||
c49cb361 | 2965 | static int vino_g_input(struct file *file, void *__fh, |
a637a114 | 2966 | unsigned int *i) |
d203a7ec | 2967 | { |
c49cb361 | 2968 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
2969 | __u32 index; |
2970 | int input; | |
a637a114 | 2971 | unsigned long flags; |
d203a7ec | 2972 | |
a637a114 | 2973 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2974 | input = vcs->input; |
2975 | index = vino_find_input_index(vcs); | |
a637a114 | 2976 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
2977 | |
2978 | dprintk("input = %d\n", input); | |
2979 | ||
2980 | if (input == VINO_INPUT_NONE) { | |
2981 | return -EINVAL; | |
2982 | } | |
2983 | ||
a637a114 | 2984 | *i = index; |
d203a7ec RB |
2985 | |
2986 | return 0; | |
2987 | } | |
2988 | ||
c49cb361 HV |
2989 | static int vino_s_input(struct file *file, void *__fh, |
2990 | unsigned int i) | |
d203a7ec | 2991 | { |
c49cb361 | 2992 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec | 2993 | int input; |
c49cb361 | 2994 | dprintk("requested input = %d\n", i); |
d203a7ec | 2995 | |
c49cb361 | 2996 | input = vino_int_enum_input(vcs, i); |
d203a7ec RB |
2997 | if (input == VINO_INPUT_NONE) |
2998 | return -EINVAL; | |
2999 | ||
3000 | return vino_set_input(vcs, input); | |
3001 | } | |
3002 | ||
c49cb361 | 3003 | static int vino_querystd(struct file *file, void *__fh, |
a637a114 LM |
3004 | v4l2_std_id *std) |
3005 | { | |
c49cb361 | 3006 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3007 | unsigned long flags; |
3008 | int err = 0; | |
3009 | ||
3010 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3011 | ||
3012 | switch (vcs->input) { | |
3013 | case VINO_INPUT_D1: | |
3014 | *std = vino_inputs[vcs->input].std; | |
3015 | break; | |
3016 | case VINO_INPUT_COMPOSITE: | |
3017 | case VINO_INPUT_SVIDEO: { | |
48f4dacb | 3018 | decoder_call(video, querystd, std); |
a637a114 LM |
3019 | break; |
3020 | } | |
3021 | default: | |
3022 | err = -EINVAL; | |
3023 | } | |
3024 | ||
3025 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
3026 | ||
3027 | return err; | |
3028 | } | |
3029 | ||
c49cb361 | 3030 | static int vino_g_std(struct file *file, void *__fh, |
d203a7ec RB |
3031 | v4l2_std_id *std) |
3032 | { | |
c49cb361 | 3033 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3034 | unsigned long flags; |
3035 | ||
3036 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); | |
3037 | ||
d203a7ec | 3038 | *std = vino_data_norms[vcs->data_norm].std; |
a637a114 LM |
3039 | dprintk("current standard = %d\n", vcs->data_norm); |
3040 | ||
3041 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3042 | |
3043 | return 0; | |
3044 | } | |
3045 | ||
c49cb361 | 3046 | static int vino_s_std(struct file *file, void *__fh, |
d203a7ec RB |
3047 | v4l2_std_id *std) |
3048 | { | |
c49cb361 | 3049 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 | 3050 | unsigned long flags; |
d203a7ec RB |
3051 | int ret = 0; |
3052 | ||
a637a114 LM |
3053 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3054 | ||
3055 | if (!vino_is_input_owner(vcs)) { | |
3056 | ret = -EBUSY; | |
3057 | goto out; | |
3058 | } | |
d203a7ec RB |
3059 | |
3060 | /* check if the standard is valid for the current input */ | |
a637a114 | 3061 | if ((*std) & vino_inputs[vcs->input].std) { |
d203a7ec RB |
3062 | dprintk("standard accepted\n"); |
3063 | ||
3064 | /* change the video norm for SAA7191 | |
3065 | * and accept NTSC for D1 (do nothing) */ | |
3066 | ||
3067 | if (vcs->input == VINO_INPUT_D1) | |
3068 | goto out; | |
3069 | ||
cf4e9484 | 3070 | if ((*std) & V4L2_STD_PAL) { |
a637a114 LM |
3071 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, |
3072 | &flags); | |
d203a7ec | 3073 | } else if ((*std) & V4L2_STD_NTSC) { |
a637a114 LM |
3074 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, |
3075 | &flags); | |
d203a7ec | 3076 | } else if ((*std) & V4L2_STD_SECAM) { |
a637a114 LM |
3077 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, |
3078 | &flags); | |
d203a7ec RB |
3079 | } else { |
3080 | ret = -EINVAL; | |
3081 | } | |
a637a114 LM |
3082 | |
3083 | if (ret) { | |
3084 | ret = -EINVAL; | |
3085 | } | |
d203a7ec RB |
3086 | } else { |
3087 | ret = -EINVAL; | |
3088 | } | |
3089 | ||
3090 | out: | |
a637a114 | 3091 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3092 | |
3093 | return ret; | |
3094 | } | |
3095 | ||
c49cb361 | 3096 | static int vino_enum_fmt_vid_cap(struct file *file, void *__fh, |
d203a7ec RB |
3097 | struct v4l2_fmtdesc *fd) |
3098 | { | |
3099 | enum v4l2_buf_type type = fd->type; | |
3100 | int index = fd->index; | |
c49cb361 | 3101 | |
d203a7ec RB |
3102 | dprintk("format index = %d\n", index); |
3103 | ||
c49cb361 HV |
3104 | if ((fd->index < 0) || |
3105 | (fd->index >= VINO_DATA_FMT_COUNT)) | |
d203a7ec | 3106 | return -EINVAL; |
c49cb361 HV |
3107 | dprintk("format name = %s\n", |
3108 | vino_data_formats[index].description); | |
3109 | ||
3110 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); | |
3111 | fd->index = index; | |
3112 | fd->type = type; | |
3113 | fd->pixelformat = vino_data_formats[index].pixelformat; | |
3114 | strcpy(fd->description, vino_data_formats[index].description); | |
d203a7ec RB |
3115 | return 0; |
3116 | } | |
3117 | ||
c49cb361 | 3118 | static int vino_try_fmt_vid_cap(struct file *file, void *__fh, |
d203a7ec RB |
3119 | struct v4l2_format *f) |
3120 | { | |
c49cb361 | 3121 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec | 3122 | struct vino_channel_settings tempvcs; |
a637a114 | 3123 | unsigned long flags; |
c49cb361 | 3124 | struct v4l2_pix_format *pf = &f->fmt.pix; |
d203a7ec | 3125 | |
c49cb361 HV |
3126 | dprintk("requested: w = %d, h = %d\n", |
3127 | pf->width, pf->height); | |
d203a7ec | 3128 | |
c49cb361 HV |
3129 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3130 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); | |
3131 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec | 3132 | |
c49cb361 HV |
3133 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); |
3134 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { | |
3135 | tempvcs.data_format = VINO_DATA_FMT_GREY; | |
3136 | pf->pixelformat = | |
3137 | vino_data_formats[tempvcs.data_format]. | |
3138 | pixelformat; | |
3139 | } | |
d203a7ec | 3140 | |
c49cb361 HV |
3141 | /* data format must be set before clipping/scaling */ |
3142 | vino_set_scaling(&tempvcs, pf->width, pf->height); | |
d203a7ec | 3143 | |
c49cb361 HV |
3144 | dprintk("data format = %s\n", |
3145 | vino_data_formats[tempvcs.data_format].description); | |
d203a7ec | 3146 | |
c49cb361 HV |
3147 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / |
3148 | tempvcs.decimation; | |
3149 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3150 | tempvcs.decimation; | |
d203a7ec | 3151 | |
c49cb361 HV |
3152 | pf->field = V4L2_FIELD_INTERLACED; |
3153 | pf->bytesperline = tempvcs.line_size; | |
3154 | pf->sizeimage = tempvcs.line_size * | |
3155 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / | |
3156 | tempvcs.decimation; | |
3157 | pf->colorspace = | |
3158 | vino_data_formats[tempvcs.data_format].colorspace; | |
d203a7ec | 3159 | |
c49cb361 | 3160 | pf->priv = 0; |
d203a7ec RB |
3161 | return 0; |
3162 | } | |
3163 | ||
c49cb361 | 3164 | static int vino_g_fmt_vid_cap(struct file *file, void *__fh, |
d203a7ec RB |
3165 | struct v4l2_format *f) |
3166 | { | |
c49cb361 | 3167 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 | 3168 | unsigned long flags; |
c49cb361 | 3169 | struct v4l2_pix_format *pf = &f->fmt.pix; |
a637a114 | 3170 | |
c49cb361 | 3171 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3172 | |
c49cb361 HV |
3173 | pf->width = (vcs->clipping.right - vcs->clipping.left) / |
3174 | vcs->decimation; | |
3175 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / | |
3176 | vcs->decimation; | |
3177 | pf->pixelformat = | |
3178 | vino_data_formats[vcs->data_format].pixelformat; | |
d203a7ec | 3179 | |
c49cb361 HV |
3180 | pf->field = V4L2_FIELD_INTERLACED; |
3181 | pf->bytesperline = vcs->line_size; | |
3182 | pf->sizeimage = vcs->line_size * | |
3183 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3184 | vcs->decimation; | |
3185 | pf->colorspace = | |
3186 | vino_data_formats[vcs->data_format].colorspace; | |
d203a7ec | 3187 | |
c49cb361 | 3188 | pf->priv = 0; |
d203a7ec | 3189 | |
c49cb361 | 3190 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3191 | return 0; |
3192 | } | |
3193 | ||
c49cb361 | 3194 | static int vino_s_fmt_vid_cap(struct file *file, void *__fh, |
d203a7ec RB |
3195 | struct v4l2_format *f) |
3196 | { | |
c49cb361 | 3197 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec | 3198 | int data_format; |
a637a114 | 3199 | unsigned long flags; |
c49cb361 | 3200 | struct v4l2_pix_format *pf = &f->fmt.pix; |
d203a7ec | 3201 | |
c49cb361 | 3202 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
a637a114 | 3203 | |
c49cb361 | 3204 | data_format = vino_find_data_format(pf->pixelformat); |
d203a7ec | 3205 | |
c49cb361 HV |
3206 | if (data_format == VINO_DATA_FMT_NONE) { |
3207 | vcs->data_format = VINO_DATA_FMT_GREY; | |
3208 | pf->pixelformat = | |
3209 | vino_data_formats[vcs->data_format]. | |
3210 | pixelformat; | |
3211 | } else { | |
3212 | vcs->data_format = data_format; | |
3213 | } | |
d203a7ec | 3214 | |
c49cb361 HV |
3215 | /* data format must be set before clipping/scaling */ |
3216 | vino_set_scaling(vcs, pf->width, pf->height); | |
d203a7ec | 3217 | |
c49cb361 HV |
3218 | dprintk("data format = %s\n", |
3219 | vino_data_formats[vcs->data_format].description); | |
d203a7ec | 3220 | |
c49cb361 HV |
3221 | pf->width = vcs->clipping.right - vcs->clipping.left; |
3222 | pf->height = vcs->clipping.bottom - vcs->clipping.top; | |
d203a7ec | 3223 | |
c49cb361 HV |
3224 | pf->field = V4L2_FIELD_INTERLACED; |
3225 | pf->bytesperline = vcs->line_size; | |
3226 | pf->sizeimage = vcs->line_size * | |
3227 | (vcs->clipping.bottom - vcs->clipping.top) / | |
3228 | vcs->decimation; | |
3229 | pf->colorspace = | |
3230 | vino_data_formats[vcs->data_format].colorspace; | |
d203a7ec | 3231 | |
c49cb361 | 3232 | pf->priv = 0; |
d203a7ec | 3233 | |
c49cb361 | 3234 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3235 | return 0; |
3236 | } | |
3237 | ||
c49cb361 | 3238 | static int vino_cropcap(struct file *file, void *__fh, |
d203a7ec RB |
3239 | struct v4l2_cropcap *ccap) |
3240 | { | |
c49cb361 | 3241 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec | 3242 | const struct vino_data_norm *norm; |
a637a114 | 3243 | unsigned long flags; |
d203a7ec RB |
3244 | |
3245 | switch (ccap->type) { | |
3246 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 LM |
3247 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3248 | ||
d203a7ec | 3249 | norm = &vino_data_norms[vcs->data_norm]; |
a637a114 LM |
3250 | |
3251 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3252 | |
3253 | ccap->bounds.left = 0; | |
3254 | ccap->bounds.top = 0; | |
3255 | ccap->bounds.width = norm->width; | |
3256 | ccap->bounds.height = norm->height; | |
3257 | memcpy(&ccap->defrect, &ccap->bounds, | |
3258 | sizeof(struct v4l2_rect)); | |
3259 | ||
3260 | ccap->pixelaspect.numerator = 1; | |
3261 | ccap->pixelaspect.denominator = 1; | |
3262 | break; | |
3263 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3264 | default: | |
3265 | return -EINVAL; | |
3266 | } | |
3267 | ||
3268 | return 0; | |
3269 | } | |
3270 | ||
c49cb361 | 3271 | static int vino_g_crop(struct file *file, void *__fh, |
d203a7ec RB |
3272 | struct v4l2_crop *c) |
3273 | { | |
c49cb361 | 3274 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3275 | unsigned long flags; |
3276 | ||
d203a7ec RB |
3277 | switch (c->type) { |
3278 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3279 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3280 | |
3281 | c->c.left = vcs->clipping.left; | |
3282 | c->c.top = vcs->clipping.top; | |
3283 | c->c.width = vcs->clipping.right - vcs->clipping.left; | |
3284 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; | |
3285 | ||
a637a114 | 3286 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3287 | break; |
3288 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3289 | default: | |
3290 | return -EINVAL; | |
3291 | } | |
3292 | ||
3293 | return 0; | |
3294 | } | |
3295 | ||
c49cb361 | 3296 | static int vino_s_crop(struct file *file, void *__fh, |
d203a7ec RB |
3297 | struct v4l2_crop *c) |
3298 | { | |
c49cb361 | 3299 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3300 | unsigned long flags; |
3301 | ||
d203a7ec RB |
3302 | switch (c->type) { |
3303 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a637a114 | 3304 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec | 3305 | |
d203a7ec RB |
3306 | vino_set_clipping(vcs, c->c.left, c->c.top, |
3307 | c->c.width, c->c.height); | |
3308 | ||
a637a114 | 3309 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3310 | break; |
3311 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3312 | default: | |
3313 | return -EINVAL; | |
3314 | } | |
3315 | ||
3316 | return 0; | |
3317 | } | |
3318 | ||
c49cb361 | 3319 | static int vino_g_parm(struct file *file, void *__fh, |
d203a7ec RB |
3320 | struct v4l2_streamparm *sp) |
3321 | { | |
c49cb361 | 3322 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3323 | unsigned long flags; |
3324 | ||
d203a7ec RB |
3325 | switch (sp->type) { |
3326 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3327 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3328 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
3329 | ||
3330 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
3331 | cp->timeperframe.numerator = 1; | |
3332 | ||
a637a114 LM |
3333 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3334 | ||
d203a7ec | 3335 | cp->timeperframe.denominator = vcs->fps; |
a637a114 LM |
3336 | |
3337 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3338 | |
3339 | // TODO: cp->readbuffers = xxx; | |
3340 | break; | |
3341 | } | |
3342 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3343 | default: | |
3344 | return -EINVAL; | |
3345 | } | |
3346 | ||
3347 | return 0; | |
3348 | } | |
3349 | ||
c49cb361 | 3350 | static int vino_s_parm(struct file *file, void *__fh, |
d203a7ec RB |
3351 | struct v4l2_streamparm *sp) |
3352 | { | |
c49cb361 | 3353 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3354 | unsigned long flags; |
3355 | ||
d203a7ec RB |
3356 | switch (sp->type) { |
3357 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3358 | struct v4l2_captureparm *cp = &sp->parm.capture; | |
3359 | ||
a637a114 | 3360 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3361 | |
3362 | if ((cp->timeperframe.numerator == 0) || | |
3363 | (cp->timeperframe.denominator == 0)) { | |
3364 | /* reset framerate */ | |
3365 | vino_set_default_framerate(vcs); | |
3366 | } else { | |
3367 | vino_set_framerate(vcs, cp->timeperframe.denominator / | |
3368 | cp->timeperframe.numerator); | |
3369 | } | |
a637a114 LM |
3370 | |
3371 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3372 | |
3373 | // TODO: set buffers according to cp->readbuffers | |
3374 | break; | |
3375 | } | |
3376 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3377 | default: | |
3378 | return -EINVAL; | |
3379 | } | |
3380 | ||
3381 | return 0; | |
3382 | } | |
3383 | ||
c49cb361 | 3384 | static int vino_reqbufs(struct file *file, void *__fh, |
d203a7ec RB |
3385 | struct v4l2_requestbuffers *rb) |
3386 | { | |
c49cb361 | 3387 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3388 | if (vcs->reading) |
3389 | return -EBUSY; | |
3390 | ||
3391 | switch (rb->type) { | |
3392 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3393 | // TODO: check queue type | |
3394 | if (rb->memory != V4L2_MEMORY_MMAP) { | |
3395 | dprintk("type not mmap\n"); | |
3396 | return -EINVAL; | |
3397 | } | |
3398 | ||
d203a7ec RB |
3399 | dprintk("count = %d\n", rb->count); |
3400 | if (rb->count > 0) { | |
a637a114 LM |
3401 | if (vino_is_capturing(vcs)) { |
3402 | dprintk("busy, capturing\n"); | |
3403 | return -EBUSY; | |
3404 | } | |
3405 | ||
d203a7ec RB |
3406 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { |
3407 | dprintk("busy, buffers still mapped\n"); | |
3408 | return -EBUSY; | |
3409 | } else { | |
a637a114 | 3410 | vcs->streaming = 0; |
d203a7ec RB |
3411 | vino_queue_free(&vcs->fb_queue); |
3412 | vino_queue_init(&vcs->fb_queue, &rb->count); | |
3413 | } | |
3414 | } else { | |
a637a114 | 3415 | vcs->streaming = 0; |
d203a7ec RB |
3416 | vino_capture_stop(vcs); |
3417 | vino_queue_free(&vcs->fb_queue); | |
3418 | } | |
3419 | break; | |
3420 | } | |
3421 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3422 | default: | |
3423 | return -EINVAL; | |
3424 | } | |
3425 | ||
3426 | return 0; | |
3427 | } | |
3428 | ||
3429 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, | |
3430 | struct vino_framebuffer *fb, | |
3431 | struct v4l2_buffer *b) | |
3432 | { | |
3433 | if (vino_queue_outgoing_contains(&vcs->fb_queue, | |
3434 | fb->id)) { | |
3435 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; | |
3436 | b->flags |= V4L2_BUF_FLAG_DONE; | |
3437 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, | |
3438 | fb->id)) { | |
3439 | b->flags &= ~V4L2_BUF_FLAG_DONE; | |
3440 | b->flags |= V4L2_BUF_FLAG_QUEUED; | |
3441 | } else { | |
3442 | b->flags &= ~(V4L2_BUF_FLAG_DONE | | |
3443 | V4L2_BUF_FLAG_QUEUED); | |
3444 | } | |
3445 | ||
3446 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); | |
3447 | ||
3448 | if (fb->map_count > 0) | |
3449 | b->flags |= V4L2_BUF_FLAG_MAPPED; | |
3450 | ||
3451 | b->index = fb->id; | |
3452 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? | |
3453 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; | |
3454 | b->m.offset = fb->offset; | |
3455 | b->bytesused = fb->data_size; | |
3456 | b->length = fb->size; | |
3457 | b->field = V4L2_FIELD_INTERLACED; | |
3458 | b->sequence = fb->frame_counter; | |
3459 | memcpy(&b->timestamp, &fb->timestamp, | |
3460 | sizeof(struct timeval)); | |
3461 | // b->input ? | |
3462 | ||
3463 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", | |
3464 | fb->id, fb->size, fb->data_size, fb->offset); | |
3465 | } | |
3466 | ||
c49cb361 | 3467 | static int vino_querybuf(struct file *file, void *__fh, |
d203a7ec RB |
3468 | struct v4l2_buffer *b) |
3469 | { | |
c49cb361 | 3470 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3471 | if (vcs->reading) |
3472 | return -EBUSY; | |
3473 | ||
3474 | switch (b->type) { | |
3475 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3476 | struct vino_framebuffer *fb; | |
3477 | ||
3478 | // TODO: check queue type | |
3479 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { | |
3480 | dprintk("invalid index = %d\n", | |
3481 | b->index); | |
3482 | return -EINVAL; | |
3483 | } | |
3484 | ||
3485 | fb = vino_queue_get_buffer(&vcs->fb_queue, | |
3486 | b->index); | |
3487 | if (fb == NULL) { | |
3488 | dprintk("vino_queue_get_buffer() failed"); | |
3489 | return -EINVAL; | |
3490 | } | |
3491 | ||
3492 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3493 | break; | |
3494 | } | |
3495 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3496 | default: | |
3497 | return -EINVAL; | |
3498 | } | |
3499 | ||
3500 | return 0; | |
3501 | } | |
3502 | ||
c49cb361 | 3503 | static int vino_qbuf(struct file *file, void *__fh, |
d203a7ec RB |
3504 | struct v4l2_buffer *b) |
3505 | { | |
c49cb361 | 3506 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3507 | if (vcs->reading) |
3508 | return -EBUSY; | |
3509 | ||
3510 | switch (b->type) { | |
3511 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3512 | struct vino_framebuffer *fb; | |
3513 | int ret; | |
3514 | ||
3515 | // TODO: check queue type | |
3516 | if (b->memory != V4L2_MEMORY_MMAP) { | |
3517 | dprintk("type not mmap\n"); | |
3518 | return -EINVAL; | |
3519 | } | |
3520 | ||
3521 | fb = vino_capture_enqueue(vcs, b->index); | |
3522 | if (fb == NULL) | |
3523 | return -EINVAL; | |
3524 | ||
3525 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3526 | ||
3527 | if (vcs->streaming) { | |
3528 | ret = vino_capture_next(vcs, 1); | |
3529 | if (ret) | |
3530 | return ret; | |
3531 | } | |
3532 | break; | |
3533 | } | |
3534 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3535 | default: | |
3536 | return -EINVAL; | |
3537 | } | |
3538 | ||
3539 | return 0; | |
3540 | } | |
3541 | ||
c49cb361 HV |
3542 | static int vino_dqbuf(struct file *file, void *__fh, |
3543 | struct v4l2_buffer *b) | |
d203a7ec | 3544 | { |
c49cb361 HV |
3545 | struct vino_channel_settings *vcs = video_drvdata(file); |
3546 | unsigned int nonblocking = file->f_flags & O_NONBLOCK; | |
d203a7ec RB |
3547 | if (vcs->reading) |
3548 | return -EBUSY; | |
3549 | ||
3550 | switch (b->type) { | |
3551 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
3552 | struct vino_framebuffer *fb; | |
3553 | unsigned int incoming, outgoing; | |
3554 | int err; | |
3555 | ||
3556 | // TODO: check queue type | |
3557 | ||
3558 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3559 | if (err) { | |
3560 | dprintk("vino_queue_get_incoming() failed\n"); | |
a637a114 | 3561 | return -EINVAL; |
d203a7ec RB |
3562 | } |
3563 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); | |
3564 | if (err) { | |
3565 | dprintk("vino_queue_get_outgoing() failed\n"); | |
a637a114 | 3566 | return -EINVAL; |
d203a7ec RB |
3567 | } |
3568 | ||
3569 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); | |
3570 | ||
3571 | if (outgoing == 0) { | |
3572 | if (incoming == 0) { | |
3573 | dprintk("no incoming or outgoing buffers\n"); | |
3574 | return -EINVAL; | |
3575 | } | |
3576 | if (nonblocking) { | |
3577 | dprintk("non-blocking I/O was selected and " | |
3578 | "there are no buffers to dequeue\n"); | |
3579 | return -EAGAIN; | |
3580 | } | |
3581 | ||
3582 | err = vino_wait_for_frame(vcs); | |
3583 | if (err) { | |
3584 | err = vino_wait_for_frame(vcs); | |
3585 | if (err) { | |
a637a114 LM |
3586 | /* interrupted or |
3587 | * no frames captured because | |
3588 | * of frame skipping */ | |
3589 | // vino_capture_failed(vcs); | |
d203a7ec RB |
3590 | return -EIO; |
3591 | } | |
3592 | } | |
3593 | } | |
3594 | ||
3595 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); | |
3596 | if (fb == NULL) { | |
3597 | dprintk("vino_queue_remove() failed\n"); | |
3598 | return -EINVAL; | |
3599 | } | |
3600 | ||
3601 | err = vino_check_buffer(vcs, fb); | |
a637a114 LM |
3602 | |
3603 | vino_v4l2_get_buffer_status(vcs, fb, b); | |
3604 | ||
d203a7ec RB |
3605 | if (err) |
3606 | return -EIO; | |
3607 | ||
d203a7ec RB |
3608 | break; |
3609 | } | |
3610 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
3611 | default: | |
3612 | return -EINVAL; | |
3613 | } | |
3614 | ||
3615 | return 0; | |
3616 | } | |
3617 | ||
c49cb361 HV |
3618 | static int vino_streamon(struct file *file, void *__fh, |
3619 | enum v4l2_buf_type i) | |
d203a7ec | 3620 | { |
c49cb361 | 3621 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3622 | unsigned int incoming; |
3623 | int ret; | |
3624 | if (vcs->reading) | |
3625 | return -EBUSY; | |
3626 | ||
3627 | if (vcs->streaming) | |
3628 | return 0; | |
3629 | ||
3630 | // TODO: check queue type | |
3631 | ||
3632 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { | |
3633 | dprintk("no buffers allocated\n"); | |
3634 | return -EINVAL; | |
3635 | } | |
3636 | ||
3637 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); | |
3638 | if (ret) { | |
3639 | dprintk("vino_queue_get_incoming() failed\n"); | |
3640 | return -EINVAL; | |
3641 | } | |
3642 | ||
3643 | vcs->streaming = 1; | |
3644 | ||
3645 | if (incoming > 0) { | |
3646 | ret = vino_capture_next(vcs, 1); | |
3647 | if (ret) { | |
3648 | vcs->streaming = 0; | |
3649 | ||
3650 | dprintk("couldn't start capture\n"); | |
3651 | return -EINVAL; | |
3652 | } | |
3653 | } | |
3654 | ||
3655 | return 0; | |
3656 | } | |
3657 | ||
c49cb361 HV |
3658 | static int vino_streamoff(struct file *file, void *__fh, |
3659 | enum v4l2_buf_type i) | |
d203a7ec | 3660 | { |
c49cb361 | 3661 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3662 | if (vcs->reading) |
3663 | return -EBUSY; | |
3664 | ||
3665 | if (!vcs->streaming) | |
3666 | return 0; | |
3667 | ||
d203a7ec | 3668 | vcs->streaming = 0; |
a637a114 | 3669 | vino_capture_stop(vcs); |
d203a7ec RB |
3670 | |
3671 | return 0; | |
3672 | } | |
3673 | ||
c49cb361 | 3674 | static int vino_queryctrl(struct file *file, void *__fh, |
d203a7ec RB |
3675 | struct v4l2_queryctrl *queryctrl) |
3676 | { | |
c49cb361 | 3677 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 | 3678 | unsigned long flags; |
d203a7ec RB |
3679 | int i; |
3680 | int err = 0; | |
3681 | ||
a637a114 | 3682 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3683 | |
3684 | switch (vcs->input) { | |
3685 | case VINO_INPUT_D1: | |
3686 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { | |
3687 | if (vino_indycam_v4l2_controls[i].id == | |
3688 | queryctrl->id) { | |
3689 | memcpy(queryctrl, | |
3690 | &vino_indycam_v4l2_controls[i], | |
3691 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3692 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3693 | goto found; |
3694 | } | |
3695 | } | |
3696 | ||
3697 | err = -EINVAL; | |
3698 | break; | |
3699 | case VINO_INPUT_COMPOSITE: | |
3700 | case VINO_INPUT_SVIDEO: | |
3701 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { | |
3702 | if (vino_saa7191_v4l2_controls[i].id == | |
3703 | queryctrl->id) { | |
3704 | memcpy(queryctrl, | |
3705 | &vino_saa7191_v4l2_controls[i], | |
3706 | sizeof(struct v4l2_queryctrl)); | |
a637a114 | 3707 | queryctrl->reserved[0] = 0; |
d203a7ec RB |
3708 | goto found; |
3709 | } | |
3710 | } | |
3711 | ||
3712 | err = -EINVAL; | |
3713 | break; | |
3714 | default: | |
3715 | err = -EINVAL; | |
3716 | } | |
3717 | ||
3718 | found: | |
a637a114 | 3719 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3720 | |
3721 | return err; | |
3722 | } | |
3723 | ||
c49cb361 | 3724 | static int vino_g_ctrl(struct file *file, void *__fh, |
d203a7ec RB |
3725 | struct v4l2_control *control) |
3726 | { | |
c49cb361 | 3727 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 LM |
3728 | unsigned long flags; |
3729 | int i; | |
d203a7ec RB |
3730 | int err = 0; |
3731 | ||
a637a114 | 3732 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
d203a7ec RB |
3733 | |
3734 | switch (vcs->input) { | |
a637a114 | 3735 | case VINO_INPUT_D1: { |
cf4e9484 | 3736 | err = -EINVAL; |
a637a114 | 3737 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
cf4e9484 HV |
3738 | if (vino_indycam_v4l2_controls[i].id == control->id) { |
3739 | err = 0; | |
3740 | break; | |
a637a114 LM |
3741 | } |
3742 | } | |
3743 | ||
cf4e9484 | 3744 | if (err) |
a637a114 | 3745 | goto out; |
a637a114 | 3746 | |
48f4dacb | 3747 | err = camera_call(core, g_ctrl, control); |
cf4e9484 HV |
3748 | if (err) |
3749 | err = -EINVAL; | |
d203a7ec | 3750 | break; |
a637a114 | 3751 | } |
d203a7ec | 3752 | case VINO_INPUT_COMPOSITE: |
a637a114 | 3753 | case VINO_INPUT_SVIDEO: { |
cf4e9484 | 3754 | err = -EINVAL; |
a637a114 | 3755 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
cf4e9484 HV |
3756 | if (vino_saa7191_v4l2_controls[i].id == control->id) { |
3757 | err = 0; | |
3758 | break; | |
a637a114 LM |
3759 | } |
3760 | } | |
3761 | ||
cf4e9484 | 3762 | if (err) |
a637a114 | 3763 | goto out; |
a637a114 | 3764 | |
48f4dacb | 3765 | err = decoder_call(core, g_ctrl, control); |
cf4e9484 HV |
3766 | if (err) |
3767 | err = -EINVAL; | |
d203a7ec | 3768 | break; |
a637a114 | 3769 | } |
d203a7ec RB |
3770 | default: |
3771 | err = -EINVAL; | |
3772 | } | |
3773 | ||
a637a114 LM |
3774 | out: |
3775 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3776 | |
3777 | return err; | |
3778 | } | |
3779 | ||
c49cb361 | 3780 | static int vino_s_ctrl(struct file *file, void *__fh, |
d203a7ec RB |
3781 | struct v4l2_control *control) |
3782 | { | |
c49cb361 | 3783 | struct vino_channel_settings *vcs = video_drvdata(file); |
a637a114 | 3784 | unsigned long flags; |
d203a7ec RB |
3785 | int i; |
3786 | int err = 0; | |
3787 | ||
a637a114 LM |
3788 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
3789 | ||
3790 | if (!vino_is_input_owner(vcs)) { | |
3791 | err = -EBUSY; | |
3792 | goto out; | |
3793 | } | |
d203a7ec RB |
3794 | |
3795 | switch (vcs->input) { | |
a637a114 | 3796 | case VINO_INPUT_D1: { |
cf4e9484 | 3797 | err = -EINVAL; |
d203a7ec | 3798 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
cf4e9484 HV |
3799 | if (vino_indycam_v4l2_controls[i].id == control->id) { |
3800 | err = 0; | |
3801 | break; | |
d203a7ec RB |
3802 | } |
3803 | } | |
cf4e9484 HV |
3804 | if (err) |
3805 | goto out; | |
3806 | if (control->value < vino_indycam_v4l2_controls[i].minimum || | |
3807 | control->value > vino_indycam_v4l2_controls[i].maximum) { | |
3808 | err = -ERANGE; | |
3809 | goto out; | |
3810 | } | |
48f4dacb | 3811 | err = camera_call(core, s_ctrl, control); |
a637a114 LM |
3812 | if (err) |
3813 | err = -EINVAL; | |
d203a7ec | 3814 | break; |
a637a114 | 3815 | } |
d203a7ec | 3816 | case VINO_INPUT_COMPOSITE: |
a637a114 | 3817 | case VINO_INPUT_SVIDEO: { |
cf4e9484 | 3818 | err = -EINVAL; |
d203a7ec | 3819 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
cf4e9484 HV |
3820 | if (vino_saa7191_v4l2_controls[i].id == control->id) { |
3821 | err = 0; | |
3822 | break; | |
d203a7ec RB |
3823 | } |
3824 | } | |
cf4e9484 HV |
3825 | if (err) |
3826 | goto out; | |
3827 | if (control->value < vino_saa7191_v4l2_controls[i].minimum || | |
3828 | control->value > vino_saa7191_v4l2_controls[i].maximum) { | |
3829 | err = -ERANGE; | |
3830 | goto out; | |
3831 | } | |
d203a7ec | 3832 | |
48f4dacb | 3833 | err = decoder_call(core, s_ctrl, control); |
a637a114 LM |
3834 | if (err) |
3835 | err = -EINVAL; | |
d203a7ec | 3836 | break; |
a637a114 | 3837 | } |
d203a7ec RB |
3838 | default: |
3839 | err = -EINVAL; | |
3840 | } | |
3841 | ||
a637a114 LM |
3842 | out: |
3843 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); | |
d203a7ec RB |
3844 | |
3845 | return err; | |
3846 | } | |
3847 | ||
3848 | /* File operations */ | |
3849 | ||
bec43661 | 3850 | static int vino_open(struct file *file) |
d203a7ec | 3851 | { |
c170ecf4 | 3852 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3853 | int ret = 0; |
3854 | dprintk("open(): channel = %c\n", | |
3855 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); | |
3856 | ||
3593cab5 | 3857 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
3858 | |
3859 | if (vcs->users) { | |
3860 | dprintk("open(): driver busy\n"); | |
3861 | ret = -EBUSY; | |
3862 | goto out; | |
3863 | } | |
3864 | ||
3865 | ret = vino_acquire_input(vcs); | |
3866 | if (ret) { | |
3867 | dprintk("open(): vino_acquire_input() failed\n"); | |
3868 | goto out; | |
3869 | } | |
3870 | ||
3871 | vcs->users++; | |
3872 | ||
3873 | out: | |
3593cab5 | 3874 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
3875 | |
3876 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); | |
3877 | ||
3878 | return ret; | |
3879 | } | |
3880 | ||
bec43661 | 3881 | static int vino_close(struct file *file) |
d203a7ec | 3882 | { |
c170ecf4 | 3883 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3884 | dprintk("close():\n"); |
3885 | ||
3593cab5 | 3886 | mutex_lock(&vcs->mutex); |
d203a7ec RB |
3887 | |
3888 | vcs->users--; | |
3889 | ||
3890 | if (!vcs->users) { | |
3891 | vino_release_input(vcs); | |
3892 | ||
3893 | /* stop DMA and free buffers */ | |
3894 | vino_capture_stop(vcs); | |
3895 | vino_queue_free(&vcs->fb_queue); | |
3896 | } | |
3897 | ||
3593cab5 | 3898 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
3899 | |
3900 | return 0; | |
3901 | } | |
3902 | ||
3903 | static void vino_vm_open(struct vm_area_struct *vma) | |
3904 | { | |
3905 | struct vino_framebuffer *fb = vma->vm_private_data; | |
3906 | ||
3907 | fb->map_count++; | |
3908 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); | |
3909 | } | |
3910 | ||
3911 | static void vino_vm_close(struct vm_area_struct *vma) | |
3912 | { | |
3913 | struct vino_framebuffer *fb = vma->vm_private_data; | |
3914 | ||
3915 | fb->map_count--; | |
3916 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); | |
3917 | } | |
3918 | ||
3919 | static struct vm_operations_struct vino_vm_ops = { | |
3920 | .open = vino_vm_open, | |
3921 | .close = vino_vm_close, | |
3922 | }; | |
3923 | ||
3924 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) | |
3925 | { | |
c170ecf4 | 3926 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
3927 | |
3928 | unsigned long start = vma->vm_start; | |
3929 | unsigned long size = vma->vm_end - vma->vm_start; | |
3930 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; | |
3931 | ||
3932 | struct vino_framebuffer *fb = NULL; | |
3933 | unsigned int i, length; | |
3934 | int ret = 0; | |
3935 | ||
3936 | dprintk("mmap():\n"); | |
3937 | ||
3938 | // TODO: reject mmap if already mapped | |
3939 | ||
3593cab5 | 3940 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
3941 | return -EINTR; |
3942 | ||
3943 | if (vcs->reading) { | |
3944 | ret = -EBUSY; | |
3945 | goto out; | |
3946 | } | |
3947 | ||
3948 | // TODO: check queue type | |
3949 | ||
3950 | if (!(vma->vm_flags & VM_WRITE)) { | |
3951 | dprintk("mmap(): app bug: PROT_WRITE please\n"); | |
3952 | ret = -EINVAL; | |
3953 | goto out; | |
3954 | } | |
3955 | if (!(vma->vm_flags & VM_SHARED)) { | |
3956 | dprintk("mmap(): app bug: MAP_SHARED please\n"); | |
3957 | ret = -EINVAL; | |
3958 | goto out; | |
3959 | } | |
3960 | ||
3961 | /* find the correct buffer using offset */ | |
3962 | length = vino_queue_get_length(&vcs->fb_queue); | |
3963 | if (length == 0) { | |
3964 | dprintk("mmap(): queue not initialized\n"); | |
3965 | ret = -EINVAL; | |
3966 | goto out; | |
3967 | } | |
3968 | ||
3969 | for (i = 0; i < length; i++) { | |
3970 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); | |
3971 | if (fb == NULL) { | |
3972 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); | |
3973 | ret = -EINVAL; | |
3974 | goto out; | |
3975 | } | |
3976 | ||
3977 | if (fb->offset == offset) | |
3978 | goto found; | |
3979 | } | |
3980 | ||
3981 | dprintk("mmap(): invalid offset = %lu\n", offset); | |
3982 | ret = -EINVAL; | |
3983 | goto out; | |
3984 | ||
3985 | found: | |
3986 | dprintk("mmap(): buffer = %d\n", i); | |
3987 | ||
3988 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { | |
3989 | dprintk("mmap(): failed: size = %lu > %lu\n", | |
3990 | size, fb->desc_table.page_count * PAGE_SIZE); | |
3991 | ret = -EINVAL; | |
3992 | goto out; | |
3993 | } | |
3994 | ||
3995 | for (i = 0; i < fb->desc_table.page_count; i++) { | |
3996 | unsigned long pfn = | |
3997 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> | |
3998 | PAGE_SHIFT; | |
3999 | ||
4000 | if (size < PAGE_SIZE) | |
4001 | break; | |
4002 | ||
4003 | // protection was: PAGE_READONLY | |
4004 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, | |
4005 | vma->vm_page_prot)) { | |
4006 | dprintk("mmap(): remap_pfn_range() failed\n"); | |
4007 | ret = -EAGAIN; | |
4008 | goto out; | |
4009 | } | |
4010 | ||
4011 | start += PAGE_SIZE; | |
4012 | size -= PAGE_SIZE; | |
4013 | } | |
4014 | ||
4015 | fb->map_count = 1; | |
4016 | ||
4017 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; | |
4018 | vma->vm_flags &= ~VM_IO; | |
4019 | vma->vm_private_data = fb; | |
4020 | vma->vm_file = file; | |
4021 | vma->vm_ops = &vino_vm_ops; | |
4022 | ||
4023 | out: | |
3593cab5 | 4024 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4025 | |
4026 | return ret; | |
4027 | } | |
4028 | ||
4029 | static unsigned int vino_poll(struct file *file, poll_table *pt) | |
4030 | { | |
c170ecf4 | 4031 | struct vino_channel_settings *vcs = video_drvdata(file); |
d203a7ec RB |
4032 | unsigned int outgoing; |
4033 | unsigned int ret = 0; | |
4034 | ||
4035 | // lock mutex (?) | |
4036 | // TODO: this has to be corrected for different read modes | |
4037 | ||
4038 | dprintk("poll():\n"); | |
4039 | ||
4040 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4041 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4042 | ret = POLLERR; | |
4043 | goto error; | |
4044 | } | |
4045 | if (outgoing > 0) | |
4046 | goto over; | |
4047 | ||
4048 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); | |
4049 | ||
4050 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { | |
4051 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); | |
4052 | ret = POLLERR; | |
4053 | goto error; | |
4054 | } | |
4055 | ||
4056 | over: | |
4057 | dprintk("poll(): data %savailable\n", | |
4058 | (outgoing > 0) ? "" : "not "); | |
a637a114 LM |
4059 | |
4060 | if (outgoing > 0) | |
d203a7ec | 4061 | ret = POLLIN | POLLRDNORM; |
d203a7ec RB |
4062 | |
4063 | error: | |
d203a7ec RB |
4064 | return ret; |
4065 | } | |
4066 | ||
069b7479 | 4067 | static long vino_ioctl(struct file *file, |
d203a7ec RB |
4068 | unsigned int cmd, unsigned long arg) |
4069 | { | |
c170ecf4 | 4070 | struct vino_channel_settings *vcs = video_drvdata(file); |
069b7479 | 4071 | long ret; |
d203a7ec | 4072 | |
3593cab5 | 4073 | if (mutex_lock_interruptible(&vcs->mutex)) |
d203a7ec RB |
4074 | return -EINTR; |
4075 | ||
c49cb361 | 4076 | ret = video_ioctl2(file, cmd, arg); |
d203a7ec | 4077 | |
3593cab5 | 4078 | mutex_unlock(&vcs->mutex); |
d203a7ec RB |
4079 | |
4080 | return ret; | |
4081 | } | |
4082 | ||
4083 | /* Initialization and cleanup */ | |
4084 | ||
ff699e6b DSL |
4085 | /* __initdata */ |
4086 | static int vino_init_stage; | |
d203a7ec | 4087 | |
c49cb361 HV |
4088 | const struct v4l2_ioctl_ops vino_ioctl_ops = { |
4089 | .vidioc_enum_fmt_vid_cap = vino_enum_fmt_vid_cap, | |
4090 | .vidioc_g_fmt_vid_cap = vino_g_fmt_vid_cap, | |
4091 | .vidioc_s_fmt_vid_cap = vino_s_fmt_vid_cap, | |
4092 | .vidioc_try_fmt_vid_cap = vino_try_fmt_vid_cap, | |
4093 | .vidioc_querycap = vino_querycap, | |
4094 | .vidioc_enum_input = vino_enum_input, | |
4095 | .vidioc_g_input = vino_g_input, | |
4096 | .vidioc_s_input = vino_s_input, | |
4097 | .vidioc_g_std = vino_g_std, | |
4098 | .vidioc_s_std = vino_s_std, | |
4099 | .vidioc_querystd = vino_querystd, | |
4100 | .vidioc_cropcap = vino_cropcap, | |
4101 | .vidioc_s_crop = vino_s_crop, | |
4102 | .vidioc_g_crop = vino_g_crop, | |
4103 | .vidioc_s_parm = vino_s_parm, | |
4104 | .vidioc_g_parm = vino_g_parm, | |
4105 | .vidioc_reqbufs = vino_reqbufs, | |
4106 | .vidioc_querybuf = vino_querybuf, | |
4107 | .vidioc_qbuf = vino_qbuf, | |
4108 | .vidioc_dqbuf = vino_dqbuf, | |
4109 | .vidioc_streamon = vino_streamon, | |
4110 | .vidioc_streamoff = vino_streamoff, | |
4111 | .vidioc_queryctrl = vino_queryctrl, | |
4112 | .vidioc_g_ctrl = vino_g_ctrl, | |
4113 | .vidioc_s_ctrl = vino_s_ctrl, | |
4114 | }; | |
4115 | ||
bec43661 | 4116 | static const struct v4l2_file_operations vino_fops = { |
d203a7ec RB |
4117 | .owner = THIS_MODULE, |
4118 | .open = vino_open, | |
4119 | .release = vino_close, | |
28959638 | 4120 | .unlocked_ioctl = vino_ioctl, |
d203a7ec RB |
4121 | .mmap = vino_mmap, |
4122 | .poll = vino_poll, | |
d203a7ec RB |
4123 | }; |
4124 | ||
0ef4dbad | 4125 | static struct video_device vdev_template = { |
d203a7ec | 4126 | .name = "NOT SET", |
d203a7ec | 4127 | .fops = &vino_fops, |
c49cb361 HV |
4128 | .ioctl_ops = &vino_ioctl_ops, |
4129 | .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, | |
d203a7ec RB |
4130 | .minor = -1, |
4131 | }; | |
4132 | ||
4133 | static void vino_module_cleanup(int stage) | |
4134 | { | |
4135 | switch(stage) { | |
28959638 | 4136 | case 11: |
0ef4dbad HV |
4137 | video_unregister_device(vino_drvdata->b.vdev); |
4138 | vino_drvdata->b.vdev = NULL; | |
28959638 | 4139 | case 10: |
0ef4dbad HV |
4140 | video_unregister_device(vino_drvdata->a.vdev); |
4141 | vino_drvdata->a.vdev = NULL; | |
28959638 | 4142 | case 9: |
cea0c681 | 4143 | i2c_del_adapter(&vino_i2c_adapter); |
28959638 | 4144 | case 8: |
d203a7ec | 4145 | free_irq(SGI_VINO_IRQ, NULL); |
28959638 | 4146 | case 7: |
0ef4dbad HV |
4147 | if (vino_drvdata->b.vdev) { |
4148 | video_device_release(vino_drvdata->b.vdev); | |
4149 | vino_drvdata->b.vdev = NULL; | |
d203a7ec | 4150 | } |
28959638 | 4151 | case 6: |
0ef4dbad HV |
4152 | if (vino_drvdata->a.vdev) { |
4153 | video_device_release(vino_drvdata->a.vdev); | |
4154 | vino_drvdata->a.vdev = NULL; | |
d203a7ec | 4155 | } |
28959638 | 4156 | case 5: |
d203a7ec RB |
4157 | /* all entries in dma_cpu dummy table have the same address */ |
4158 | dma_unmap_single(NULL, | |
4159 | vino_drvdata->dummy_desc_table.dma_cpu[0], | |
4160 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4161 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT | |
4162 | * sizeof(dma_addr_t), | |
4163 | (void *)vino_drvdata-> | |
4164 | dummy_desc_table.dma_cpu, | |
4165 | vino_drvdata->dummy_desc_table.dma); | |
28959638 | 4166 | case 4: |
d203a7ec | 4167 | free_page(vino_drvdata->dummy_page); |
28959638 HV |
4168 | case 3: |
4169 | v4l2_device_unregister(&vino_drvdata->v4l2_dev); | |
d203a7ec RB |
4170 | case 2: |
4171 | kfree(vino_drvdata); | |
4172 | case 1: | |
4173 | iounmap(vino); | |
4174 | case 0: | |
4175 | break; | |
4176 | default: | |
4177 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", | |
4178 | stage); | |
4179 | } | |
4180 | } | |
4181 | ||
4182 | static int vino_probe(void) | |
4183 | { | |
4184 | unsigned long rev_id; | |
4185 | ||
4186 | if (ip22_is_fullhouse()) { | |
4187 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); | |
4188 | return -ENODEV; | |
4189 | } | |
4190 | ||
4191 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { | |
4192 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); | |
4193 | return -ENODEV; | |
4194 | } | |
4195 | ||
4196 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); | |
4197 | if (!vino) { | |
4198 | printk(KERN_ERR "VINO: ioremap() failed\n"); | |
4199 | return -EIO; | |
4200 | } | |
4201 | vino_init_stage++; | |
4202 | ||
4203 | if (get_dbe(rev_id, &(vino->rev_id))) { | |
4204 | printk(KERN_ERR "Failed to read VINO revision register\n"); | |
4205 | vino_module_cleanup(vino_init_stage); | |
4206 | return -ENODEV; | |
4207 | } | |
4208 | ||
4209 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { | |
4210 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", | |
4211 | rev_id); | |
4212 | vino_module_cleanup(vino_init_stage); | |
4213 | return -ENODEV; | |
4214 | } | |
4215 | ||
a637a114 | 4216 | printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); |
d203a7ec RB |
4217 | |
4218 | return 0; | |
4219 | } | |
4220 | ||
4221 | static int vino_init(void) | |
4222 | { | |
4223 | dma_addr_t dma_dummy_address; | |
28959638 | 4224 | int err; |
d203a7ec RB |
4225 | int i; |
4226 | ||
7408187d | 4227 | vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); |
d203a7ec RB |
4228 | if (!vino_drvdata) { |
4229 | vino_module_cleanup(vino_init_stage); | |
4230 | return -ENOMEM; | |
4231 | } | |
d203a7ec | 4232 | vino_init_stage++; |
28959638 HV |
4233 | strlcpy(vino_drvdata->v4l2_dev.name, "vino", |
4234 | sizeof(vino_drvdata->v4l2_dev.name)); | |
4235 | err = v4l2_device_register(NULL, &vino_drvdata->v4l2_dev); | |
4236 | if (err) | |
4237 | return err; | |
4238 | vino_init_stage++; | |
d203a7ec RB |
4239 | |
4240 | /* create a dummy dma descriptor */ | |
4241 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); | |
4242 | if (!vino_drvdata->dummy_page) { | |
4243 | vino_module_cleanup(vino_init_stage); | |
4244 | return -ENOMEM; | |
4245 | } | |
4246 | vino_init_stage++; | |
4247 | ||
4248 | // TODO: use page_count in dummy_desc_table | |
4249 | ||
4250 | vino_drvdata->dummy_desc_table.dma_cpu = | |
4251 | dma_alloc_coherent(NULL, | |
4252 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), | |
4253 | &vino_drvdata->dummy_desc_table.dma, | |
4254 | GFP_KERNEL | GFP_DMA); | |
4255 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { | |
4256 | vino_module_cleanup(vino_init_stage); | |
4257 | return -ENOMEM; | |
4258 | } | |
4259 | vino_init_stage++; | |
4260 | ||
4261 | dma_dummy_address = dma_map_single(NULL, | |
4262 | (void *)vino_drvdata->dummy_page, | |
4263 | PAGE_SIZE, DMA_FROM_DEVICE); | |
4264 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { | |
4265 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; | |
4266 | } | |
4267 | ||
4268 | /* initialize VINO */ | |
4269 | ||
4270 | vino->control = 0; | |
4271 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4272 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; | |
4273 | udelay(VINO_DESC_FETCH_DELAY); | |
4274 | ||
4275 | vino->intr_status = 0; | |
4276 | ||
4277 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4278 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; | |
4279 | ||
4280 | return 0; | |
4281 | } | |
4282 | ||
4283 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, | |
4284 | unsigned int channel, const char *name) | |
4285 | { | |
4286 | vcs->channel = channel; | |
4287 | vcs->input = VINO_INPUT_NONE; | |
4288 | vcs->alpha = 0; | |
4289 | vcs->users = 0; | |
4290 | vcs->data_format = VINO_DATA_FMT_GREY; | |
4291 | vcs->data_norm = VINO_DATA_NORM_NTSC; | |
4292 | vcs->decimation = 1; | |
4293 | vino_set_default_clipping(vcs); | |
4294 | vino_set_default_framerate(vcs); | |
4295 | ||
4296 | vcs->capturing = 0; | |
4297 | ||
3593cab5 | 4298 | mutex_init(&vcs->mutex); |
d203a7ec RB |
4299 | spin_lock_init(&vcs->capture_lock); |
4300 | ||
3593cab5 | 4301 | mutex_init(&vcs->fb_queue.queue_mutex); |
d203a7ec RB |
4302 | spin_lock_init(&vcs->fb_queue.queue_lock); |
4303 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); | |
4304 | ||
0ef4dbad HV |
4305 | vcs->vdev = video_device_alloc(); |
4306 | if (!vcs->vdev) { | |
d203a7ec RB |
4307 | vino_module_cleanup(vino_init_stage); |
4308 | return -ENOMEM; | |
4309 | } | |
4310 | vino_init_stage++; | |
4311 | ||
0ef4dbad | 4312 | memcpy(vcs->vdev, &vdev_template, |
d203a7ec | 4313 | sizeof(struct video_device)); |
0ef4dbad HV |
4314 | strcpy(vcs->vdev->name, name); |
4315 | vcs->vdev->release = video_device_release; | |
28959638 | 4316 | vcs->vdev->v4l2_dev = &vino_drvdata->v4l2_dev; |
d203a7ec | 4317 | |
0ef4dbad | 4318 | video_set_drvdata(vcs->vdev, vcs); |
d203a7ec RB |
4319 | |
4320 | return 0; | |
4321 | } | |
4322 | ||
4323 | static int __init vino_module_init(void) | |
4324 | { | |
48f4dacb | 4325 | unsigned short addr[] = { 0, I2C_CLIENT_END }; |
d203a7ec RB |
4326 | int ret; |
4327 | ||
4328 | printk(KERN_INFO "SGI VINO driver version %s\n", | |
4329 | VINO_MODULE_VERSION); | |
4330 | ||
4331 | ret = vino_probe(); | |
4332 | if (ret) | |
4333 | return ret; | |
4334 | ||
4335 | ret = vino_init(); | |
4336 | if (ret) | |
4337 | return ret; | |
4338 | ||
4339 | /* initialize data structures */ | |
4340 | ||
4341 | spin_lock_init(&vino_drvdata->vino_lock); | |
4342 | spin_lock_init(&vino_drvdata->input_lock); | |
4343 | ||
4344 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, | |
0ef4dbad | 4345 | vino_vdev_name_a); |
d203a7ec RB |
4346 | if (ret) |
4347 | return ret; | |
4348 | ||
4349 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, | |
0ef4dbad | 4350 | vino_vdev_name_b); |
d203a7ec RB |
4351 | if (ret) |
4352 | return ret; | |
4353 | ||
4354 | /* initialize hardware and register V4L devices */ | |
4355 | ||
4356 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, | |
4357 | vino_driver_description, NULL); | |
4358 | if (ret) { | |
4359 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", | |
4360 | SGI_VINO_IRQ); | |
4361 | vino_module_cleanup(vino_init_stage); | |
4362 | return -EAGAIN; | |
4363 | } | |
4364 | vino_init_stage++; | |
4365 | ||
cea0c681 | 4366 | ret = i2c_add_adapter(&vino_i2c_adapter); |
d203a7ec RB |
4367 | if (ret) { |
4368 | printk(KERN_ERR "VINO I2C bus registration failed\n"); | |
4369 | vino_module_cleanup(vino_init_stage); | |
4370 | return ret; | |
4371 | } | |
28959638 | 4372 | i2c_set_adapdata(&vino_i2c_adapter, &vino_drvdata->v4l2_dev); |
d203a7ec RB |
4373 | vino_init_stage++; |
4374 | ||
0ef4dbad | 4375 | ret = video_register_device(vino_drvdata->a.vdev, |
d203a7ec RB |
4376 | VFL_TYPE_GRABBER, -1); |
4377 | if (ret < 0) { | |
4378 | printk(KERN_ERR "VINO channel A Video4Linux-device " | |
4379 | "registration failed\n"); | |
4380 | vino_module_cleanup(vino_init_stage); | |
4381 | return -EINVAL; | |
4382 | } | |
4383 | vino_init_stage++; | |
4384 | ||
0ef4dbad | 4385 | ret = video_register_device(vino_drvdata->b.vdev, |
d203a7ec RB |
4386 | VFL_TYPE_GRABBER, -1); |
4387 | if (ret < 0) { | |
4388 | printk(KERN_ERR "VINO channel B Video4Linux-device " | |
4389 | "registration failed\n"); | |
4390 | vino_module_cleanup(vino_init_stage); | |
4391 | return -EINVAL; | |
4392 | } | |
4393 | vino_init_stage++; | |
4394 | ||
48f4dacb HV |
4395 | addr[0] = 0x45; |
4396 | vino_drvdata->decoder = v4l2_i2c_new_probed_subdev(&vino_i2c_adapter, | |
4397 | "saa7191", "saa7191", addr); | |
4398 | addr[0] = 0x2b; | |
4399 | vino_drvdata->camera = v4l2_i2c_new_probed_subdev(&vino_i2c_adapter, | |
4400 | "indycam", "indycam", addr); | |
d203a7ec RB |
4401 | |
4402 | dprintk("init complete!\n"); | |
4403 | ||
4404 | return 0; | |
4405 | } | |
4406 | ||
4407 | static void __exit vino_module_exit(void) | |
4408 | { | |
4409 | dprintk("exiting, stage = %d ...\n", vino_init_stage); | |
4410 | vino_module_cleanup(vino_init_stage); | |
4411 | dprintk("cleanup complete, exit!\n"); | |
4412 | } | |
4413 | ||
4414 | module_init(vino_module_init); | |
4415 | module_exit(vino_module_exit); |