Commit | Line | Data |
---|---|---|
781aa1d1 | 1 | /* |
483dfdb6 | 2 | * usbvision-core.c - driver for NT100x USB video capture devices |
7ca659e3 | 3 | * |
781aa1d1 MCC |
4 | * |
5 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> | |
483dfdb6 | 6 | * Dwaine Garden <dwainegarden@rogers.com> |
781aa1d1 MCC |
7 | * |
8 | * This module is part of usbvision driver project. | |
483dfdb6 | 9 | * Updates to driver completed by Dwaine P. Garden |
781aa1d1 MCC |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
781aa1d1 MCC |
20 | */ |
21 | ||
22 | #include <linux/kernel.h> | |
781aa1d1 MCC |
23 | #include <linux/list.h> |
24 | #include <linux/timer.h> | |
5a0e3ad6 | 25 | #include <linux/gfp.h> |
781aa1d1 | 26 | #include <linux/mm.h> |
781aa1d1 | 27 | #include <linux/highmem.h> |
781aa1d1 MCC |
28 | #include <linux/vmalloc.h> |
29 | #include <linux/module.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/spinlock.h> | |
6d6a48e5 | 32 | #include <linux/io.h> |
781aa1d1 | 33 | #include <linux/videodev2.h> |
781aa1d1 | 34 | #include <linux/i2c.h> |
781aa1d1 | 35 | |
b5dcee22 | 36 | #include <media/i2c/saa7115.h> |
18d8a454 | 37 | #include <media/v4l2-common.h> |
781aa1d1 | 38 | #include <media/tuner.h> |
781aa1d1 | 39 | |
a1ed551c | 40 | #include <linux/workqueue.h> |
781aa1d1 | 41 | |
781aa1d1 | 42 | #include "usbvision.h" |
781aa1d1 | 43 | |
ff699e6b | 44 | static unsigned int core_debug; |
6d6a48e5 HV |
45 | module_param(core_debug, int, 0644); |
46 | MODULE_PARM_DESC(core_debug, "enable debug messages [core]"); | |
781aa1d1 | 47 | |
5490a7cb HV |
48 | static int adjust_compression = 1; /* Set the compression to be adaptive */ |
49 | module_param(adjust_compression, int, 0444); | |
50 | MODULE_PARM_DESC(adjust_compression, " Set the ADPCM compression for the device. Default: 1 (On)"); | |
483dfdb6 | 51 | |
ff699e6b DSL |
52 | /* To help people with Black and White output with using s-video input. |
53 | * Some cables and input device are wired differently. */ | |
5490a7cb HV |
54 | static int switch_svideo_input; |
55 | module_param(switch_svideo_input, int, 0444); | |
56 | MODULE_PARM_DESC(switch_svideo_input, " Set the S-Video input. Some cables and input device are wired differently. Default: 0 (Off)"); | |
781aa1d1 | 57 | |
5490a7cb HV |
58 | static unsigned int adjust_x_offset = -1; |
59 | module_param(adjust_x_offset, int, 0644); | |
60 | MODULE_PARM_DESC(adjust_x_offset, "adjust X offset display [core]"); | |
c6243d9c | 61 | |
5490a7cb HV |
62 | static unsigned int adjust_y_offset = -1; |
63 | module_param(adjust_y_offset, int, 0644); | |
64 | MODULE_PARM_DESC(adjust_y_offset, "adjust Y offset display [core]"); | |
c6243d9c TM |
65 | |
66 | ||
483dfdb6 | 67 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ |
781aa1d1 | 68 | |
781aa1d1 MCC |
69 | |
70 | #ifdef USBVISION_DEBUG | |
df18c319 TM |
71 | #define PDEBUG(level, fmt, args...) { \ |
72 | if (core_debug & (level)) \ | |
a482f327 GKH |
73 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
74 | __func__, __LINE__ , ## args); \ | |
df18c319 | 75 | } |
781aa1d1 | 76 | #else |
6d6a48e5 | 77 | #define PDEBUG(level, fmt, args...) do {} while (0) |
781aa1d1 MCC |
78 | #endif |
79 | ||
6d6a48e5 HV |
80 | #define DBG_HEADER (1 << 0) |
81 | #define DBG_IRQ (1 << 1) | |
82 | #define DBG_ISOC (1 << 2) | |
83 | #define DBG_PARSE (1 << 3) | |
84 | #define DBG_SCRATCH (1 << 4) | |
85 | #define DBG_FUNC (1 << 5) | |
781aa1d1 | 86 | |
483dfdb6 | 87 | /* The value of 'scratch_buf_size' affects quality of the picture |
781aa1d1 MCC |
88 | * in many ways. Shorter buffers may cause loss of data when client |
89 | * is too slow. Larger buffers are memory-consuming and take longer | |
90 | * to work with. This setting can be adjusted, but the default value | |
91 | * should be OK for most desktop users. | |
92 | */ | |
52cb0bf2 | 93 | #define DEFAULT_SCRATCH_BUF_SIZE (0x20000) /* 128kB memory scratch buffer */ |
781aa1d1 MCC |
94 | static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE; |
95 | ||
52cb0bf2 | 96 | /* Function prototypes */ |
6d6a48e5 HV |
97 | static int usbvision_request_intra(struct usb_usbvision *usbvision); |
98 | static int usbvision_unrequest_intra(struct usb_usbvision *usbvision); | |
99 | static int usbvision_adjust_compression(struct usb_usbvision *usbvision); | |
100 | static int usbvision_measure_bandwidth(struct usb_usbvision *usbvision); | |
781aa1d1 MCC |
101 | |
102 | /*******************************/ | |
103 | /* Memory management functions */ | |
104 | /*******************************/ | |
105 | ||
106 | /* | |
107 | * Here we want the physical address of the memory. | |
108 | * This is used when initializing the contents of the area. | |
109 | */ | |
110 | ||
0a0ceade | 111 | static void *usbvision_rvmalloc(unsigned long size) |
781aa1d1 MCC |
112 | { |
113 | void *mem; | |
114 | unsigned long adr; | |
115 | ||
116 | size = PAGE_ALIGN(size); | |
117 | mem = vmalloc_32(size); | |
118 | if (!mem) | |
119 | return NULL; | |
120 | ||
121 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
483dfdb6 TM |
122 | adr = (unsigned long) mem; |
123 | while (size > 0) { | |
124 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
125 | adr += PAGE_SIZE; | |
126 | size -= PAGE_SIZE; | |
127 | } | |
128 | ||
129 | return mem; | |
781aa1d1 MCC |
130 | } |
131 | ||
4a06b538 | 132 | static void usbvision_rvfree(void *mem, unsigned long size) |
781aa1d1 | 133 | { |
483dfdb6 TM |
134 | unsigned long adr; |
135 | ||
136 | if (!mem) | |
137 | return; | |
781aa1d1 | 138 | |
483dfdb6 | 139 | size = PAGE_ALIGN(size); |
781aa1d1 | 140 | |
483dfdb6 TM |
141 | adr = (unsigned long) mem; |
142 | while ((long) size > 0) { | |
143 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
144 | adr += PAGE_SIZE; | |
145 | size -= PAGE_SIZE; | |
146 | } | |
781aa1d1 | 147 | |
483dfdb6 TM |
148 | vfree(mem); |
149 | } | |
781aa1d1 MCC |
150 | |
151 | ||
781aa1d1 MCC |
152 | #if ENABLE_HEXDUMP |
153 | static void usbvision_hexdump(const unsigned char *data, int len) | |
154 | { | |
483dfdb6 TM |
155 | char tmp[80]; |
156 | int i, k; | |
157 | ||
158 | for (i = k = 0; len > 0; i++, len--) { | |
159 | if (i > 0 && (i % 16 == 0)) { | |
160 | printk("%s\n", tmp); | |
161 | k = 0; | |
162 | } | |
163 | k += sprintf(&tmp[k], "%02x ", data[i]); | |
164 | } | |
165 | if (k > 0) | |
6d6a48e5 | 166 | printk(KERN_CONT "%s\n", tmp); |
781aa1d1 MCC |
167 | } |
168 | #endif | |
169 | ||
483dfdb6 TM |
170 | /******************************** |
171 | * scratch ring buffer handling | |
172 | ********************************/ | |
52cb0bf2 | 173 | static int scratch_len(struct usb_usbvision *usbvision) /* This returns the amount of data actually in the buffer */ |
781aa1d1 MCC |
174 | { |
175 | int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr; | |
6d6a48e5 HV |
176 | |
177 | if (len < 0) | |
781aa1d1 | 178 | len += scratch_buf_size; |
781aa1d1 MCC |
179 | PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len); |
180 | ||
181 | return len; | |
182 | } | |
183 | ||
184 | ||
185 | /* This returns the free space left in the buffer */ | |
0a0ceade | 186 | static int scratch_free(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
187 | { |
188 | int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr; | |
6d6a48e5 | 189 | if (free <= 0) |
781aa1d1 | 190 | free += scratch_buf_size; |
781aa1d1 MCC |
191 | if (free) { |
192 | free -= 1; /* at least one byte in the buffer must */ | |
193 | /* left blank, otherwise there is no chance to differ between full and empty */ | |
194 | } | |
195 | PDEBUG(DBG_SCRATCH, "return %d\n", free); | |
196 | ||
197 | return free; | |
198 | } | |
199 | ||
200 | ||
781aa1d1 | 201 | /* This puts data into the buffer */ |
0a0ceade AB |
202 | static int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, |
203 | int len) | |
781aa1d1 MCC |
204 | { |
205 | int len_part; | |
206 | ||
207 | if (usbvision->scratch_write_ptr + len < scratch_buf_size) { | |
208 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len); | |
209 | usbvision->scratch_write_ptr += len; | |
6d6a48e5 | 210 | } else { |
781aa1d1 MCC |
211 | len_part = scratch_buf_size - usbvision->scratch_write_ptr; |
212 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part); | |
213 | if (len == len_part) { | |
214 | usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */ | |
6d6a48e5 | 215 | } else { |
781aa1d1 MCC |
216 | memcpy(usbvision->scratch, data + len_part, len - len_part); |
217 | usbvision->scratch_write_ptr = len - len_part; | |
218 | } | |
219 | } | |
220 | ||
221 | PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr); | |
222 | ||
223 | return len; | |
224 | } | |
225 | ||
226 | /* This marks the write_ptr as position of new frame header */ | |
0a0ceade | 227 | static void scratch_mark_header(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
228 | { |
229 | PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr); | |
230 | ||
231 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] = | |
232 | usbvision->scratch_write_ptr; | |
233 | usbvision->scratch_headermarker_write_ptr += 1; | |
234 | usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER; | |
235 | } | |
236 | ||
237 | /* This gets data from the buffer at the given "ptr" position */ | |
0a0ceade AB |
238 | static int scratch_get_extra(struct usb_usbvision *usbvision, |
239 | unsigned char *data, int *ptr, int len) | |
781aa1d1 MCC |
240 | { |
241 | int len_part; | |
6d6a48e5 | 242 | |
781aa1d1 MCC |
243 | if (*ptr + len < scratch_buf_size) { |
244 | memcpy(data, usbvision->scratch + *ptr, len); | |
245 | *ptr += len; | |
6d6a48e5 | 246 | } else { |
781aa1d1 MCC |
247 | len_part = scratch_buf_size - *ptr; |
248 | memcpy(data, usbvision->scratch + *ptr, len_part); | |
249 | if (len == len_part) { | |
250 | *ptr = 0; /* just set the y_ptr to zero */ | |
6d6a48e5 | 251 | } else { |
781aa1d1 MCC |
252 | memcpy(data + len_part, usbvision->scratch, len - len_part); |
253 | *ptr = len - len_part; | |
254 | } | |
255 | } | |
256 | ||
257 | PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr); | |
258 | ||
259 | return len; | |
260 | } | |
261 | ||
262 | ||
263 | /* This sets the scratch extra read pointer */ | |
0a0ceade AB |
264 | static void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, |
265 | int len) | |
781aa1d1 | 266 | { |
6d6a48e5 | 267 | *ptr = (usbvision->scratch_read_ptr + len) % scratch_buf_size; |
781aa1d1 MCC |
268 | |
269 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); | |
270 | } | |
271 | ||
272 | ||
52cb0bf2 | 273 | /* This increments the scratch extra read pointer */ |
0a0ceade | 274 | static void scratch_inc_extra_ptr(int *ptr, int len) |
781aa1d1 MCC |
275 | { |
276 | *ptr = (*ptr + len) % scratch_buf_size; | |
277 | ||
278 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); | |
279 | } | |
280 | ||
281 | ||
282 | /* This gets data from the buffer */ | |
0a0ceade AB |
283 | static int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, |
284 | int len) | |
781aa1d1 MCC |
285 | { |
286 | int len_part; | |
6d6a48e5 | 287 | |
781aa1d1 MCC |
288 | if (usbvision->scratch_read_ptr + len < scratch_buf_size) { |
289 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len); | |
290 | usbvision->scratch_read_ptr += len; | |
6d6a48e5 | 291 | } else { |
781aa1d1 MCC |
292 | len_part = scratch_buf_size - usbvision->scratch_read_ptr; |
293 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part); | |
294 | if (len == len_part) { | |
295 | usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */ | |
6d6a48e5 | 296 | } else { |
781aa1d1 MCC |
297 | memcpy(data + len_part, usbvision->scratch, len - len_part); |
298 | usbvision->scratch_read_ptr = len - len_part; | |
299 | } | |
300 | } | |
301 | ||
302 | PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr); | |
303 | ||
304 | return len; | |
305 | } | |
306 | ||
307 | ||
308 | /* This sets read pointer to next header and returns it */ | |
0a0ceade AB |
309 | static int scratch_get_header(struct usb_usbvision *usbvision, |
310 | struct usbvision_frame_header *header) | |
781aa1d1 | 311 | { |
5490a7cb | 312 | int err_code = 0; |
781aa1d1 MCC |
313 | |
314 | PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr); | |
315 | ||
316 | while (usbvision->scratch_headermarker_write_ptr - | |
317 | usbvision->scratch_headermarker_read_ptr != 0) { | |
318 | usbvision->scratch_read_ptr = | |
319 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr]; | |
320 | usbvision->scratch_headermarker_read_ptr += 1; | |
321 | usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER; | |
322 | scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH); | |
323 | if ((header->magic_1 == USBVISION_MAGIC_1) | |
324 | && (header->magic_2 == USBVISION_MAGIC_2) | |
5490a7cb HV |
325 | && (header->header_length == USBVISION_HEADER_LENGTH)) { |
326 | err_code = USBVISION_HEADER_LENGTH; | |
327 | header->frame_width = header->frame_width_lo + (header->frame_width_hi << 8); | |
328 | header->frame_height = header->frame_height_lo + (header->frame_height_hi << 8); | |
781aa1d1 MCC |
329 | break; |
330 | } | |
331 | } | |
332 | ||
5490a7cb | 333 | return err_code; |
781aa1d1 MCC |
334 | } |
335 | ||
336 | ||
52cb0bf2 | 337 | /* This removes len bytes of old data from the buffer */ |
0a0ceade | 338 | static void scratch_rm_old(struct usb_usbvision *usbvision, int len) |
781aa1d1 | 339 | { |
781aa1d1 MCC |
340 | usbvision->scratch_read_ptr += len; |
341 | usbvision->scratch_read_ptr %= scratch_buf_size; | |
342 | PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr); | |
343 | } | |
344 | ||
345 | ||
52cb0bf2 | 346 | /* This resets the buffer - kills all data in it too */ |
0a0ceade | 347 | static void scratch_reset(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
348 | { |
349 | PDEBUG(DBG_SCRATCH, "\n"); | |
350 | ||
351 | usbvision->scratch_read_ptr = 0; | |
352 | usbvision->scratch_write_ptr = 0; | |
353 | usbvision->scratch_headermarker_read_ptr = 0; | |
354 | usbvision->scratch_headermarker_write_ptr = 0; | |
5490a7cb | 355 | usbvision->isocstate = isoc_state_no_frame; |
781aa1d1 MCC |
356 | } |
357 | ||
483dfdb6 | 358 | int usbvision_scratch_alloc(struct usb_usbvision *usbvision) |
781aa1d1 | 359 | { |
38284ba3 | 360 | usbvision->scratch = vmalloc_32(scratch_buf_size); |
483dfdb6 | 361 | scratch_reset(usbvision); |
6d6a48e5 | 362 | if (usbvision->scratch == NULL) { |
be9ed511 MCC |
363 | dev_err(&usbvision->dev->dev, |
364 | "%s: unable to allocate %d bytes for scratch\n", | |
365 | __func__, scratch_buf_size); | |
483dfdb6 | 366 | return -ENOMEM; |
781aa1d1 | 367 | } |
483dfdb6 | 368 | return 0; |
781aa1d1 MCC |
369 | } |
370 | ||
483dfdb6 | 371 | void usbvision_scratch_free(struct usb_usbvision *usbvision) |
781aa1d1 | 372 | { |
5e2c217e F |
373 | vfree(usbvision->scratch); |
374 | usbvision->scratch = NULL; | |
781aa1d1 MCC |
375 | } |
376 | ||
781aa1d1 | 377 | /* |
483dfdb6 TM |
378 | * usbvision_decompress_alloc() |
379 | * | |
380 | * allocates intermediate buffer for decompression | |
781aa1d1 | 381 | */ |
483dfdb6 TM |
382 | int usbvision_decompress_alloc(struct usb_usbvision *usbvision) |
383 | { | |
384 | int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2; | |
6d6a48e5 | 385 | |
5490a7cb HV |
386 | usbvision->intra_frame_buffer = vmalloc_32(IFB_size); |
387 | if (usbvision->intra_frame_buffer == NULL) { | |
be9ed511 MCC |
388 | dev_err(&usbvision->dev->dev, |
389 | "%s: unable to allocate %d for compr. frame buffer\n", | |
390 | __func__, IFB_size); | |
483dfdb6 TM |
391 | return -ENOMEM; |
392 | } | |
393 | return 0; | |
394 | } | |
395 | ||
396 | /* | |
397 | * usbvision_decompress_free() | |
398 | * | |
399 | * frees intermediate buffer for decompression | |
400 | */ | |
401 | void usbvision_decompress_free(struct usb_usbvision *usbvision) | |
402 | { | |
5490a7cb HV |
403 | vfree(usbvision->intra_frame_buffer); |
404 | usbvision->intra_frame_buffer = NULL; | |
5e2c217e | 405 | |
483dfdb6 TM |
406 | } |
407 | ||
408 | /************************************************************ | |
409 | * Here comes the data parsing stuff that is run as interrupt | |
410 | ************************************************************/ | |
781aa1d1 MCC |
411 | /* |
412 | * usbvision_find_header() | |
413 | * | |
414 | * Locate one of supported header markers in the scratch buffer. | |
415 | */ | |
5490a7cb | 416 | static enum parse_state usbvision_find_header(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
417 | { |
418 | struct usbvision_frame *frame; | |
5490a7cb | 419 | int found_header = 0; |
781aa1d1 | 420 | |
5490a7cb | 421 | frame = usbvision->cur_frame; |
781aa1d1 | 422 | |
5490a7cb | 423 | while (scratch_get_header(usbvision, &frame->isoc_header) == USBVISION_HEADER_LENGTH) { |
52cb0bf2 | 424 | /* found header in scratch */ |
781aa1d1 | 425 | PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u", |
5490a7cb HV |
426 | frame->isoc_header.magic_2, |
427 | frame->isoc_header.magic_1, | |
428 | frame->isoc_header.header_length, | |
429 | frame->isoc_header.frame_num, | |
430 | frame->isoc_header.frame_phase, | |
431 | frame->isoc_header.frame_latency, | |
432 | frame->isoc_header.data_format, | |
433 | frame->isoc_header.format_param, | |
434 | frame->isoc_header.frame_width, | |
435 | frame->isoc_header.frame_height); | |
436 | ||
437 | if (usbvision->request_intra) { | |
438 | if (frame->isoc_header.format_param & 0x80) { | |
439 | found_header = 1; | |
52cb0bf2 | 440 | usbvision->last_isoc_frame_num = -1; /* do not check for lost frames this time */ |
781aa1d1 MCC |
441 | usbvision_unrequest_intra(usbvision); |
442 | break; | |
443 | } | |
6d6a48e5 | 444 | } else { |
5490a7cb | 445 | found_header = 1; |
781aa1d1 MCC |
446 | break; |
447 | } | |
448 | } | |
449 | ||
5490a7cb HV |
450 | if (found_header) { |
451 | frame->frmwidth = frame->isoc_header.frame_width * usbvision->stretch_width; | |
452 | frame->frmheight = frame->isoc_header.frame_height * usbvision->stretch_height; | |
6d6a48e5 HV |
453 | frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth) >> 3; |
454 | } else { /* no header found */ | |
781aa1d1 MCC |
455 | PDEBUG(DBG_HEADER, "skipping scratch data, no header"); |
456 | scratch_reset(usbvision); | |
5490a7cb | 457 | return parse_state_end_parse; |
781aa1d1 MCC |
458 | } |
459 | ||
52cb0bf2 | 460 | /* found header */ |
6d6a48e5 | 461 | if (frame->isoc_header.data_format == ISOC_MODE_COMPRESS) { |
52cb0bf2 | 462 | /* check isoc_header.frame_num for lost frames */ |
5490a7cb HV |
463 | if (usbvision->last_isoc_frame_num >= 0) { |
464 | if (((usbvision->last_isoc_frame_num + 1) % 32) != frame->isoc_header.frame_num) { | |
52cb0bf2 | 465 | /* unexpected frame drop: need to request new intra frame */ |
5490a7cb | 466 | PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isoc_header.frame_num); |
781aa1d1 | 467 | usbvision_request_intra(usbvision); |
5490a7cb | 468 | return parse_state_next_frame; |
781aa1d1 MCC |
469 | } |
470 | } | |
5490a7cb | 471 | usbvision->last_isoc_frame_num = frame->isoc_header.frame_num; |
781aa1d1 MCC |
472 | } |
473 | usbvision->header_count++; | |
5490a7cb | 474 | frame->scanstate = scan_state_lines; |
781aa1d1 MCC |
475 | frame->curline = 0; |
476 | ||
5490a7cb | 477 | return parse_state_continue; |
781aa1d1 MCC |
478 | } |
479 | ||
5490a7cb | 480 | static enum parse_state usbvision_parse_lines_422(struct usb_usbvision *usbvision, |
781aa1d1 MCC |
481 | long *pcopylen) |
482 | { | |
483 | volatile struct usbvision_frame *frame; | |
484 | unsigned char *f; | |
485 | int len; | |
486 | int i; | |
6d6a48e5 | 487 | unsigned char yuyv[4] = { 180, 128, 10, 128 }; /* YUV components */ |
52cb0bf2 | 488 | unsigned char rv, gv, bv; /* RGB components */ |
781aa1d1 | 489 | int clipmask_index, bytes_per_pixel; |
781aa1d1 MCC |
490 | int stretch_bytes, clipmask_add; |
491 | ||
5490a7cb | 492 | frame = usbvision->cur_frame; |
483dfdb6 | 493 | f = frame->data + (frame->v4l2_linesize * frame->curline); |
781aa1d1 MCC |
494 | |
495 | /* Make sure there's enough data for the entire line */ | |
6d6a48e5 | 496 | len = (frame->isoc_header.frame_width * 2) + 5; |
781aa1d1 MCC |
497 | if (scratch_len(usbvision) < len) { |
498 | PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len); | |
5490a7cb | 499 | return parse_state_out; |
781aa1d1 MCC |
500 | } |
501 | ||
6d6a48e5 | 502 | if ((frame->curline + 1) >= frame->frmheight) |
5490a7cb | 503 | return parse_state_next_frame; |
781aa1d1 MCC |
504 | |
505 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; | |
506 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; | |
507 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; | |
508 | clipmask_add = usbvision->stretch_width; | |
509 | ||
6d6a48e5 | 510 | for (i = 0; i < frame->frmwidth; i += (2 * usbvision->stretch_width)) { |
781aa1d1 MCC |
511 | scratch_get(usbvision, &yuyv[0], 4); |
512 | ||
483dfdb6 | 513 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
52cb0bf2 HV |
514 | *f++ = yuyv[0]; /* Y */ |
515 | *f++ = yuyv[3]; /* U */ | |
6d6a48e5 | 516 | } else { |
781aa1d1 MCC |
517 | YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv); |
518 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
519 | case V4L2_PIX_FMT_RGB565: |
520 | *f++ = (0x1F & rv) | | |
521 | (0xE0 & (gv << 5)); | |
522 | *f++ = (0x07 & (gv >> 3)) | | |
523 | (0xF8 & bv); | |
524 | break; | |
525 | case V4L2_PIX_FMT_RGB24: | |
526 | *f++ = rv; | |
527 | *f++ = gv; | |
528 | *f++ = bv; | |
529 | break; | |
530 | case V4L2_PIX_FMT_RGB32: | |
531 | *f++ = rv; | |
532 | *f++ = gv; | |
533 | *f++ = bv; | |
534 | f++; | |
535 | break; | |
536 | case V4L2_PIX_FMT_RGB555: | |
537 | *f++ = (0x1F & rv) | | |
538 | (0xE0 & (gv << 5)); | |
539 | *f++ = (0x03 & (gv >> 3)) | | |
540 | (0x7C & (bv << 2)); | |
541 | break; | |
781aa1d1 MCC |
542 | } |
543 | } | |
544 | clipmask_index += clipmask_add; | |
545 | f += stretch_bytes; | |
546 | ||
483dfdb6 | 547 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
52cb0bf2 HV |
548 | *f++ = yuyv[2]; /* Y */ |
549 | *f++ = yuyv[1]; /* V */ | |
6d6a48e5 | 550 | } else { |
781aa1d1 MCC |
551 | YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv); |
552 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
553 | case V4L2_PIX_FMT_RGB565: |
554 | *f++ = (0x1F & rv) | | |
555 | (0xE0 & (gv << 5)); | |
556 | *f++ = (0x07 & (gv >> 3)) | | |
557 | (0xF8 & bv); | |
558 | break; | |
559 | case V4L2_PIX_FMT_RGB24: | |
560 | *f++ = rv; | |
561 | *f++ = gv; | |
562 | *f++ = bv; | |
563 | break; | |
564 | case V4L2_PIX_FMT_RGB32: | |
565 | *f++ = rv; | |
566 | *f++ = gv; | |
567 | *f++ = bv; | |
568 | f++; | |
569 | break; | |
570 | case V4L2_PIX_FMT_RGB555: | |
571 | *f++ = (0x1F & rv) | | |
572 | (0xE0 & (gv << 5)); | |
573 | *f++ = (0x03 & (gv >> 3)) | | |
574 | (0x7C & (bv << 2)); | |
575 | break; | |
781aa1d1 MCC |
576 | } |
577 | } | |
578 | clipmask_index += clipmask_add; | |
579 | f += stretch_bytes; | |
580 | } | |
581 | ||
582 | frame->curline += usbvision->stretch_height; | |
583 | *pcopylen += frame->v4l2_linesize * usbvision->stretch_height; | |
584 | ||
6d6a48e5 | 585 | if (frame->curline >= frame->frmheight) |
5490a7cb | 586 | return parse_state_next_frame; |
6d6a48e5 | 587 | return parse_state_continue; |
781aa1d1 MCC |
588 | } |
589 | ||
483dfdb6 | 590 | /* The decompression routine */ |
6d6a48e5 | 591 | static int usbvision_decompress(struct usb_usbvision *usbvision, unsigned char *compressed, |
5490a7cb HV |
592 | unsigned char *decompressed, int *start_pos, |
593 | int *block_typestart_pos, int len) | |
781aa1d1 | 594 | { |
8173090a | 595 | int rest_pixel, idx, pos, extra_pos, block_len, block_type_pos, block_type_len; |
5490a7cb HV |
596 | unsigned char block_byte, block_code, block_type, block_type_byte, integrator; |
597 | ||
598 | integrator = 0; | |
599 | pos = *start_pos; | |
600 | block_type_pos = *block_typestart_pos; | |
5490a7cb HV |
601 | extra_pos = pos; |
602 | block_len = 0; | |
603 | block_byte = 0; | |
604 | block_code = 0; | |
605 | block_type = 0; | |
606 | block_type_byte = 0; | |
607 | block_type_len = 0; | |
608 | rest_pixel = len; | |
609 | ||
610 | for (idx = 0; idx < len; idx++) { | |
5490a7cb | 611 | if (block_len == 0) { |
6d6a48e5 | 612 | if (block_type_len == 0) { |
5490a7cb HV |
613 | block_type_byte = compressed[block_type_pos]; |
614 | block_type_pos++; | |
615 | block_type_len = 4; | |
781aa1d1 | 616 | } |
5490a7cb | 617 | block_type = (block_type_byte & 0xC0) >> 6; |
781aa1d1 | 618 | |
52cb0bf2 | 619 | /* statistic: */ |
5490a7cb HV |
620 | usbvision->compr_block_types[block_type]++; |
621 | ||
622 | pos = extra_pos; | |
623 | if (block_type == 0) { | |
6d6a48e5 | 624 | if (rest_pixel >= 24) { |
5490a7cb HV |
625 | idx += 23; |
626 | rest_pixel -= 24; | |
627 | integrator = decompressed[idx]; | |
781aa1d1 | 628 | } else { |
5490a7cb HV |
629 | idx += rest_pixel - 1; |
630 | rest_pixel = 0; | |
781aa1d1 MCC |
631 | } |
632 | } else { | |
5490a7cb HV |
633 | block_code = compressed[pos]; |
634 | pos++; | |
6d6a48e5 | 635 | if (rest_pixel >= 24) |
5490a7cb | 636 | block_len = 24; |
6d6a48e5 | 637 | else |
5490a7cb | 638 | block_len = rest_pixel; |
5490a7cb HV |
639 | rest_pixel -= block_len; |
640 | extra_pos = pos + (block_len / 4); | |
781aa1d1 | 641 | } |
5490a7cb HV |
642 | block_type_byte <<= 2; |
643 | block_type_len -= 1; | |
781aa1d1 | 644 | } |
5490a7cb | 645 | if (block_len > 0) { |
6d6a48e5 | 646 | if ((block_len % 4) == 0) { |
5490a7cb HV |
647 | block_byte = compressed[pos]; |
648 | pos++; | |
781aa1d1 | 649 | } |
6d6a48e5 | 650 | if (block_type == 1) /* inter Block */ |
5490a7cb | 651 | integrator = decompressed[idx]; |
5490a7cb | 652 | switch (block_byte & 0xC0) { |
6d6a48e5 HV |
653 | case 0x03 << 6: |
654 | integrator += compressed[extra_pos]; | |
655 | extra_pos++; | |
656 | break; | |
657 | case 0x02 << 6: | |
658 | integrator += block_code; | |
659 | break; | |
660 | case 0x00: | |
661 | integrator -= block_code; | |
662 | break; | |
781aa1d1 | 663 | } |
5490a7cb HV |
664 | decompressed[idx] = integrator; |
665 | block_byte <<= 2; | |
666 | block_len -= 1; | |
781aa1d1 MCC |
667 | } |
668 | } | |
5490a7cb HV |
669 | *start_pos = extra_pos; |
670 | *block_typestart_pos = block_type_pos; | |
671 | return idx; | |
781aa1d1 MCC |
672 | } |
673 | ||
674 | ||
675 | /* | |
676 | * usbvision_parse_compress() | |
677 | * | |
678 | * Parse compressed frame from the scratch buffer, put | |
679 | * decoded RGB value into the current frame buffer and add the written | |
680 | * number of bytes (RGB) to the *pcopylen. | |
681 | * | |
682 | */ | |
5490a7cb | 683 | static enum parse_state usbvision_parse_compress(struct usb_usbvision *usbvision, |
781aa1d1 MCC |
684 | long *pcopylen) |
685 | { | |
686 | #define USBVISION_STRIP_MAGIC 0x5A | |
687 | #define USBVISION_STRIP_LEN_MAX 400 | |
688 | #define USBVISION_STRIP_HEADER_LEN 3 | |
689 | ||
690 | struct usbvision_frame *frame; | |
6d6a48e5 | 691 | unsigned char *f, *u = NULL, *v = NULL; |
5490a7cb HV |
692 | unsigned char strip_data[USBVISION_STRIP_LEN_MAX]; |
693 | unsigned char strip_header[USBVISION_STRIP_HEADER_LEN]; | |
6d6a48e5 | 694 | int idx, idx_end, strip_len, strip_ptr, startblock_pos, block_pos, block_type_pos; |
8173090a | 695 | int clipmask_index; |
5490a7cb | 696 | int image_size; |
781aa1d1 MCC |
697 | unsigned char rv, gv, bv; |
698 | static unsigned char *Y, *U, *V; | |
699 | ||
6d6a48e5 | 700 | frame = usbvision->cur_frame; |
5490a7cb | 701 | image_size = frame->frmwidth * frame->frmheight; |
6d6a48e5 HV |
702 | if ((frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || |
703 | (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420)) { /* this is a planar format */ | |
52cb0bf2 | 704 | /* ... v4l2_linesize not used here. */ |
483dfdb6 TM |
705 | f = frame->data + (frame->width * frame->curline); |
706 | } else | |
707 | f = frame->data + (frame->v4l2_linesize * frame->curline); | |
708 | ||
6d6a48e5 | 709 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { /* initialise u and v pointers */ |
52cb0bf2 | 710 | /* get base of u and b planes add halfoffset */ |
483dfdb6 | 711 | u = frame->data |
5490a7cb | 712 | + image_size |
6d6a48e5 HV |
713 | + (frame->frmwidth >> 1) * frame->curline; |
714 | v = u + (image_size >> 1); | |
715 | } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) { | |
716 | v = frame->data + image_size + ((frame->curline * (frame->width)) >> 2); | |
717 | u = v + (image_size >> 2); | |
781aa1d1 MCC |
718 | } |
719 | ||
6d6a48e5 | 720 | if (frame->curline == 0) |
781aa1d1 | 721 | usbvision_adjust_compression(usbvision); |
781aa1d1 | 722 | |
6d6a48e5 | 723 | if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) |
5490a7cb | 724 | return parse_state_out; |
781aa1d1 | 725 | |
52cb0bf2 | 726 | /* get strip header without changing the scratch_read_ptr */ |
5490a7cb HV |
727 | scratch_set_extra_ptr(usbvision, &strip_ptr, 0); |
728 | scratch_get_extra(usbvision, &strip_header[0], &strip_ptr, | |
781aa1d1 MCC |
729 | USBVISION_STRIP_HEADER_LEN); |
730 | ||
5490a7cb | 731 | if (strip_header[0] != USBVISION_STRIP_MAGIC) { |
52cb0bf2 | 732 | /* wrong strip magic */ |
5490a7cb HV |
733 | usbvision->strip_magic_errors++; |
734 | return parse_state_next_frame; | |
781aa1d1 MCC |
735 | } |
736 | ||
5490a7cb | 737 | if (frame->curline != (int)strip_header[2]) { |
6d6a48e5 | 738 | /* line number mismatch error */ |
5490a7cb | 739 | usbvision->strip_line_number_errors++; |
781aa1d1 MCC |
740 | } |
741 | ||
5490a7cb HV |
742 | strip_len = 2 * (unsigned int)strip_header[1]; |
743 | if (strip_len > USBVISION_STRIP_LEN_MAX) { | |
52cb0bf2 HV |
744 | /* strip overrun */ |
745 | /* I think this never happens */ | |
781aa1d1 MCC |
746 | usbvision_request_intra(usbvision); |
747 | } | |
748 | ||
5490a7cb | 749 | if (scratch_len(usbvision) < strip_len) { |
52cb0bf2 | 750 | /* there is not enough data for the strip */ |
5490a7cb | 751 | return parse_state_out; |
781aa1d1 MCC |
752 | } |
753 | ||
5490a7cb HV |
754 | if (usbvision->intra_frame_buffer) { |
755 | Y = usbvision->intra_frame_buffer + frame->frmwidth * frame->curline; | |
756 | U = usbvision->intra_frame_buffer + image_size + (frame->frmwidth / 2) * (frame->curline / 2); | |
757 | V = usbvision->intra_frame_buffer + image_size / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2); | |
6d6a48e5 | 758 | } else { |
5490a7cb | 759 | return parse_state_next_frame; |
781aa1d1 MCC |
760 | } |
761 | ||
781aa1d1 MCC |
762 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; |
763 | ||
5490a7cb | 764 | scratch_get(usbvision, strip_data, strip_len); |
781aa1d1 | 765 | |
5490a7cb HV |
766 | idx_end = frame->frmwidth; |
767 | block_type_pos = USBVISION_STRIP_HEADER_LEN; | |
6d6a48e5 HV |
768 | startblock_pos = block_type_pos + (idx_end - 1) / 96 + (idx_end / 2 - 1) / 96 + 2; |
769 | block_pos = startblock_pos; | |
781aa1d1 | 770 | |
5490a7cb | 771 | usbvision->block_pos = block_pos; |
781aa1d1 | 772 | |
8173090a | 773 | usbvision_decompress(usbvision, strip_data, Y, &block_pos, &block_type_pos, idx_end); |
6d6a48e5 | 774 | if (strip_len > usbvision->max_strip_len) |
5490a7cb | 775 | usbvision->max_strip_len = strip_len; |
781aa1d1 | 776 | |
6d6a48e5 | 777 | if (frame->curline % 2) |
8173090a | 778 | usbvision_decompress(usbvision, strip_data, V, &block_pos, &block_type_pos, idx_end / 2); |
6d6a48e5 | 779 | else |
8173090a | 780 | usbvision_decompress(usbvision, strip_data, U, &block_pos, &block_type_pos, idx_end / 2); |
781aa1d1 | 781 | |
6d6a48e5 | 782 | if (block_pos > usbvision->comprblock_pos) |
5490a7cb | 783 | usbvision->comprblock_pos = block_pos; |
6d6a48e5 | 784 | if (block_pos > strip_len) |
5490a7cb | 785 | usbvision->strip_len_errors++; |
18d8a454 | 786 | |
5490a7cb | 787 | for (idx = 0; idx < idx_end; idx++) { |
6d6a48e5 | 788 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
5490a7cb | 789 | *f++ = Y[idx]; |
6d6a48e5 HV |
790 | *f++ = idx & 0x01 ? U[idx / 2] : V[idx / 2]; |
791 | } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) { | |
5490a7cb | 792 | *f++ = Y[idx]; |
6d6a48e5 HV |
793 | if (idx & 0x01) |
794 | *u++ = U[idx >> 1]; | |
781aa1d1 | 795 | else |
6d6a48e5 HV |
796 | *v++ = V[idx >> 1]; |
797 | } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) { | |
798 | *f++ = Y[idx]; | |
799 | if (!((idx & 0x01) | (frame->curline & 0x01))) { | |
800 | /* only need do this for 1 in 4 pixels */ | |
801 | /* intraframe buffer is YUV420 format */ | |
802 | *u++ = U[idx >> 1]; | |
803 | *v++ = V[idx >> 1]; | |
781aa1d1 | 804 | } |
6d6a48e5 HV |
805 | } else { |
806 | YUV_TO_RGB_BY_THE_BOOK(Y[idx], U[idx / 2], V[idx / 2], rv, gv, bv); | |
781aa1d1 | 807 | switch (frame->v4l2_format.format) { |
6d6a48e5 HV |
808 | case V4L2_PIX_FMT_GREY: |
809 | *f++ = Y[idx]; | |
810 | break; | |
811 | case V4L2_PIX_FMT_RGB555: | |
812 | *f++ = (0x1F & rv) | | |
813 | (0xE0 & (gv << 5)); | |
814 | *f++ = (0x03 & (gv >> 3)) | | |
815 | (0x7C & (bv << 2)); | |
816 | break; | |
817 | case V4L2_PIX_FMT_RGB565: | |
818 | *f++ = (0x1F & rv) | | |
819 | (0xE0 & (gv << 5)); | |
820 | *f++ = (0x07 & (gv >> 3)) | | |
821 | (0xF8 & bv); | |
822 | break; | |
823 | case V4L2_PIX_FMT_RGB24: | |
824 | *f++ = rv; | |
825 | *f++ = gv; | |
826 | *f++ = bv; | |
827 | break; | |
828 | case V4L2_PIX_FMT_RGB32: | |
829 | *f++ = rv; | |
830 | *f++ = gv; | |
831 | *f++ = bv; | |
832 | f++; | |
833 | break; | |
781aa1d1 MCC |
834 | } |
835 | } | |
836 | clipmask_index++; | |
837 | } | |
18d8a454 | 838 | /* Deal with non-integer no. of bytes for YUV420P */ |
6d6a48e5 | 839 | if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420) |
18d8a454 DG |
840 | *pcopylen += frame->v4l2_linesize; |
841 | else | |
842 | *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1; | |
843 | ||
781aa1d1 MCC |
844 | frame->curline += 1; |
845 | ||
6d6a48e5 | 846 | if (frame->curline >= frame->frmheight) |
5490a7cb | 847 | return parse_state_next_frame; |
6d6a48e5 | 848 | return parse_state_continue; |
781aa1d1 MCC |
849 | |
850 | } | |
851 | ||
852 | ||
853 | /* | |
854 | * usbvision_parse_lines_420() | |
855 | * | |
856 | * Parse two lines from the scratch buffer, put | |
857 | * decoded RGB value into the current frame buffer and add the written | |
858 | * number of bytes (RGB) to the *pcopylen. | |
859 | * | |
860 | */ | |
5490a7cb | 861 | static enum parse_state usbvision_parse_lines_420(struct usb_usbvision *usbvision, |
781aa1d1 MCC |
862 | long *pcopylen) |
863 | { | |
864 | struct usbvision_frame *frame; | |
865 | unsigned char *f_even = NULL, *f_odd = NULL; | |
866 | unsigned int pixel_per_line, block; | |
867 | int pixel, block_split; | |
868 | int y_ptr, u_ptr, v_ptr, y_odd_offset; | |
6d6a48e5 HV |
869 | const int y_block_size = 128; |
870 | const int uv_block_size = 64; | |
781aa1d1 | 871 | const int sub_block_size = 32; |
6d6a48e5 HV |
872 | const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4; |
873 | const int uv_step[] = { 0, 0, 0, 4 }, uv_step_size = 4; | |
781aa1d1 MCC |
874 | unsigned char y[2], u, v; /* YUV components */ |
875 | int y_, u_, v_, vb, uvg, ur; | |
876 | int r_, g_, b_; /* RGB components */ | |
877 | unsigned char g; | |
878 | int clipmask_even_index, clipmask_odd_index, bytes_per_pixel; | |
879 | int clipmask_add, stretch_bytes; | |
781aa1d1 | 880 | |
5490a7cb | 881 | frame = usbvision->cur_frame; |
483dfdb6 TM |
882 | f_even = frame->data + (frame->v4l2_linesize * frame->curline); |
883 | f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height; | |
781aa1d1 MCC |
884 | |
885 | /* Make sure there's enough data for the entire line */ | |
886 | /* In this mode usbvision transfer 3 bytes for every 2 pixels */ | |
887 | /* I need two lines to decode the color */ | |
18d8a454 | 888 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
781aa1d1 MCC |
889 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; |
890 | clipmask_even_index = frame->curline * MAX_FRAME_WIDTH; | |
891 | clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH; | |
892 | clipmask_add = usbvision->stretch_width; | |
5490a7cb | 893 | pixel_per_line = frame->isoc_header.frame_width; |
781aa1d1 MCC |
894 | |
895 | if (scratch_len(usbvision) < (int)pixel_per_line * 3) { | |
52cb0bf2 | 896 | /* printk(KERN_DEBUG "out of data, need %d\n", len); */ |
5490a7cb | 897 | return parse_state_out; |
781aa1d1 MCC |
898 | } |
899 | ||
6d6a48e5 | 900 | if ((frame->curline + 1) >= frame->frmheight) |
5490a7cb | 901 | return parse_state_next_frame; |
781aa1d1 | 902 | |
52cb0bf2 | 903 | block_split = (pixel_per_line%y_block_size) ? 1 : 0; /* are some blocks splitted into different lines? */ |
781aa1d1 MCC |
904 | |
905 | y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size) | |
906 | + block_split * uv_block_size; | |
907 | ||
908 | scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset); | |
909 | scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size); | |
910 | scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset | |
911 | + (4 - block_split) * sub_block_size); | |
912 | ||
6d6a48e5 HV |
913 | for (block = 0; block < (pixel_per_line / sub_block_size); block++) { |
914 | for (pixel = 0; pixel < sub_block_size; pixel += 2) { | |
781aa1d1 MCC |
915 | scratch_get(usbvision, &y[0], 2); |
916 | scratch_get_extra(usbvision, &u, &u_ptr, 1); | |
917 | scratch_get_extra(usbvision, &v, &v_ptr, 1); | |
918 | ||
52cb0bf2 | 919 | /* I don't use the YUV_TO_RGB macro for better performance */ |
781aa1d1 MCC |
920 | v_ = v - 128; |
921 | u_ = u - 128; | |
6d6a48e5 HV |
922 | vb = 132252 * v_; |
923 | uvg = -53281 * u_ - 25625 * v_; | |
781aa1d1 MCC |
924 | ur = 104595 * u_; |
925 | ||
6d6a48e5 | 926 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
927 | *f_even++ = y[0]; |
928 | *f_even++ = v; | |
6d6a48e5 | 929 | } else { |
781aa1d1 MCC |
930 | y_ = 76284 * (y[0] - 16); |
931 | ||
932 | b_ = (y_ + vb) >> 16; | |
6d6a48e5 | 933 | g_ = (y_ + uvg) >> 16; |
781aa1d1 MCC |
934 | r_ = (y_ + ur) >> 16; |
935 | ||
936 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
937 | case V4L2_PIX_FMT_RGB565: |
938 | g = LIMIT_RGB(g_); | |
939 | *f_even++ = | |
940 | (0x1F & LIMIT_RGB(r_)) | | |
941 | (0xE0 & (g << 5)); | |
942 | *f_even++ = | |
943 | (0x07 & (g >> 3)) | | |
944 | (0xF8 & LIMIT_RGB(b_)); | |
945 | break; | |
946 | case V4L2_PIX_FMT_RGB24: | |
947 | *f_even++ = LIMIT_RGB(r_); | |
948 | *f_even++ = LIMIT_RGB(g_); | |
949 | *f_even++ = LIMIT_RGB(b_); | |
950 | break; | |
951 | case V4L2_PIX_FMT_RGB32: | |
952 | *f_even++ = LIMIT_RGB(r_); | |
953 | *f_even++ = LIMIT_RGB(g_); | |
954 | *f_even++ = LIMIT_RGB(b_); | |
955 | f_even++; | |
956 | break; | |
957 | case V4L2_PIX_FMT_RGB555: | |
958 | g = LIMIT_RGB(g_); | |
959 | *f_even++ = (0x1F & LIMIT_RGB(r_)) | | |
960 | (0xE0 & (g << 5)); | |
961 | *f_even++ = (0x03 & (g >> 3)) | | |
962 | (0x7C & (LIMIT_RGB(b_) << 2)); | |
963 | break; | |
781aa1d1 MCC |
964 | } |
965 | } | |
966 | clipmask_even_index += clipmask_add; | |
967 | f_even += stretch_bytes; | |
968 | ||
6d6a48e5 | 969 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
970 | *f_even++ = y[1]; |
971 | *f_even++ = u; | |
6d6a48e5 | 972 | } else { |
781aa1d1 MCC |
973 | y_ = 76284 * (y[1] - 16); |
974 | ||
975 | b_ = (y_ + vb) >> 16; | |
6d6a48e5 | 976 | g_ = (y_ + uvg) >> 16; |
781aa1d1 MCC |
977 | r_ = (y_ + ur) >> 16; |
978 | ||
979 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
980 | case V4L2_PIX_FMT_RGB565: |
981 | g = LIMIT_RGB(g_); | |
982 | *f_even++ = | |
983 | (0x1F & LIMIT_RGB(r_)) | | |
984 | (0xE0 & (g << 5)); | |
985 | *f_even++ = | |
986 | (0x07 & (g >> 3)) | | |
987 | (0xF8 & LIMIT_RGB(b_)); | |
988 | break; | |
989 | case V4L2_PIX_FMT_RGB24: | |
990 | *f_even++ = LIMIT_RGB(r_); | |
991 | *f_even++ = LIMIT_RGB(g_); | |
992 | *f_even++ = LIMIT_RGB(b_); | |
993 | break; | |
994 | case V4L2_PIX_FMT_RGB32: | |
995 | *f_even++ = LIMIT_RGB(r_); | |
996 | *f_even++ = LIMIT_RGB(g_); | |
997 | *f_even++ = LIMIT_RGB(b_); | |
998 | f_even++; | |
999 | break; | |
1000 | case V4L2_PIX_FMT_RGB555: | |
1001 | g = LIMIT_RGB(g_); | |
1002 | *f_even++ = (0x1F & LIMIT_RGB(r_)) | | |
1003 | (0xE0 & (g << 5)); | |
1004 | *f_even++ = (0x03 & (g >> 3)) | | |
1005 | (0x7C & (LIMIT_RGB(b_) << 2)); | |
1006 | break; | |
781aa1d1 MCC |
1007 | } |
1008 | } | |
1009 | clipmask_even_index += clipmask_add; | |
1010 | f_even += stretch_bytes; | |
1011 | ||
1012 | scratch_get_extra(usbvision, &y[0], &y_ptr, 2); | |
1013 | ||
6d6a48e5 | 1014 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1015 | *f_odd++ = y[0]; |
1016 | *f_odd++ = v; | |
6d6a48e5 | 1017 | } else { |
781aa1d1 MCC |
1018 | y_ = 76284 * (y[0] - 16); |
1019 | ||
1020 | b_ = (y_ + vb) >> 16; | |
6d6a48e5 | 1021 | g_ = (y_ + uvg) >> 16; |
781aa1d1 MCC |
1022 | r_ = (y_ + ur) >> 16; |
1023 | ||
1024 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
1025 | case V4L2_PIX_FMT_RGB565: |
1026 | g = LIMIT_RGB(g_); | |
1027 | *f_odd++ = | |
1028 | (0x1F & LIMIT_RGB(r_)) | | |
1029 | (0xE0 & (g << 5)); | |
1030 | *f_odd++ = | |
1031 | (0x07 & (g >> 3)) | | |
1032 | (0xF8 & LIMIT_RGB(b_)); | |
1033 | break; | |
1034 | case V4L2_PIX_FMT_RGB24: | |
1035 | *f_odd++ = LIMIT_RGB(r_); | |
1036 | *f_odd++ = LIMIT_RGB(g_); | |
1037 | *f_odd++ = LIMIT_RGB(b_); | |
1038 | break; | |
1039 | case V4L2_PIX_FMT_RGB32: | |
1040 | *f_odd++ = LIMIT_RGB(r_); | |
1041 | *f_odd++ = LIMIT_RGB(g_); | |
1042 | *f_odd++ = LIMIT_RGB(b_); | |
1043 | f_odd++; | |
1044 | break; | |
1045 | case V4L2_PIX_FMT_RGB555: | |
1046 | g = LIMIT_RGB(g_); | |
1047 | *f_odd++ = (0x1F & LIMIT_RGB(r_)) | | |
1048 | (0xE0 & (g << 5)); | |
1049 | *f_odd++ = (0x03 & (g >> 3)) | | |
1050 | (0x7C & (LIMIT_RGB(b_) << 2)); | |
1051 | break; | |
781aa1d1 MCC |
1052 | } |
1053 | } | |
1054 | clipmask_odd_index += clipmask_add; | |
1055 | f_odd += stretch_bytes; | |
1056 | ||
6d6a48e5 | 1057 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
781aa1d1 MCC |
1058 | *f_odd++ = y[1]; |
1059 | *f_odd++ = u; | |
6d6a48e5 | 1060 | } else { |
781aa1d1 MCC |
1061 | y_ = 76284 * (y[1] - 16); |
1062 | ||
1063 | b_ = (y_ + vb) >> 16; | |
6d6a48e5 | 1064 | g_ = (y_ + uvg) >> 16; |
781aa1d1 MCC |
1065 | r_ = (y_ + ur) >> 16; |
1066 | ||
1067 | switch (frame->v4l2_format.format) { | |
6200bbaa TM |
1068 | case V4L2_PIX_FMT_RGB565: |
1069 | g = LIMIT_RGB(g_); | |
1070 | *f_odd++ = | |
1071 | (0x1F & LIMIT_RGB(r_)) | | |
1072 | (0xE0 & (g << 5)); | |
1073 | *f_odd++ = | |
1074 | (0x07 & (g >> 3)) | | |
1075 | (0xF8 & LIMIT_RGB(b_)); | |
1076 | break; | |
1077 | case V4L2_PIX_FMT_RGB24: | |
1078 | *f_odd++ = LIMIT_RGB(r_); | |
1079 | *f_odd++ = LIMIT_RGB(g_); | |
1080 | *f_odd++ = LIMIT_RGB(b_); | |
1081 | break; | |
1082 | case V4L2_PIX_FMT_RGB32: | |
1083 | *f_odd++ = LIMIT_RGB(r_); | |
1084 | *f_odd++ = LIMIT_RGB(g_); | |
1085 | *f_odd++ = LIMIT_RGB(b_); | |
1086 | f_odd++; | |
1087 | break; | |
1088 | case V4L2_PIX_FMT_RGB555: | |
1089 | g = LIMIT_RGB(g_); | |
1090 | *f_odd++ = (0x1F & LIMIT_RGB(r_)) | | |
1091 | (0xE0 & (g << 5)); | |
1092 | *f_odd++ = (0x03 & (g >> 3)) | | |
1093 | (0x7C & (LIMIT_RGB(b_) << 2)); | |
1094 | break; | |
781aa1d1 MCC |
1095 | } |
1096 | } | |
1097 | clipmask_odd_index += clipmask_add; | |
1098 | f_odd += stretch_bytes; | |
1099 | } | |
1100 | ||
6d6a48e5 | 1101 | scratch_rm_old(usbvision, y_step[block % y_step_size] * sub_block_size); |
781aa1d1 MCC |
1102 | scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size] |
1103 | * sub_block_size); | |
1104 | scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size] | |
1105 | * sub_block_size); | |
1106 | scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size] | |
1107 | * sub_block_size); | |
1108 | } | |
1109 | ||
1110 | scratch_rm_old(usbvision, pixel_per_line * 3 / 2 | |
1111 | + block_split * sub_block_size); | |
1112 | ||
1113 | frame->curline += 2 * usbvision->stretch_height; | |
1114 | *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height; | |
1115 | ||
1116 | if (frame->curline >= frame->frmheight) | |
5490a7cb | 1117 | return parse_state_next_frame; |
6d6a48e5 | 1118 | return parse_state_continue; |
781aa1d1 MCC |
1119 | } |
1120 | ||
1121 | /* | |
1122 | * usbvision_parse_data() | |
1123 | * | |
1124 | * Generic routine to parse the scratch buffer. It employs either | |
1125 | * usbvision_find_header() or usbvision_parse_lines() to do most | |
1126 | * of work. | |
1127 | * | |
1128 | */ | |
1129 | static void usbvision_parse_data(struct usb_usbvision *usbvision) | |
1130 | { | |
1131 | struct usbvision_frame *frame; | |
5490a7cb | 1132 | enum parse_state newstate; |
781aa1d1 | 1133 | long copylen = 0; |
f2242ee5 | 1134 | unsigned long lock_flags; |
781aa1d1 | 1135 | |
5490a7cb | 1136 | frame = usbvision->cur_frame; |
781aa1d1 MCC |
1137 | |
1138 | PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision)); | |
1139 | ||
781aa1d1 | 1140 | while (1) { |
5490a7cb | 1141 | newstate = parse_state_out; |
781aa1d1 | 1142 | if (scratch_len(usbvision)) { |
5490a7cb | 1143 | if (frame->scanstate == scan_state_scanning) { |
781aa1d1 | 1144 | newstate = usbvision_find_header(usbvision); |
6d6a48e5 HV |
1145 | } else if (frame->scanstate == scan_state_lines) { |
1146 | if (usbvision->isoc_mode == ISOC_MODE_YUV420) | |
781aa1d1 | 1147 | newstate = usbvision_parse_lines_420(usbvision, ©len); |
6d6a48e5 | 1148 | else if (usbvision->isoc_mode == ISOC_MODE_YUV422) |
781aa1d1 | 1149 | newstate = usbvision_parse_lines_422(usbvision, ©len); |
6d6a48e5 | 1150 | else if (usbvision->isoc_mode == ISOC_MODE_COMPRESS) |
781aa1d1 | 1151 | newstate = usbvision_parse_compress(usbvision, ©len); |
781aa1d1 MCC |
1152 | } |
1153 | } | |
6d6a48e5 | 1154 | if (newstate == parse_state_continue) |
781aa1d1 | 1155 | continue; |
6d6a48e5 | 1156 | if ((newstate == parse_state_next_frame) || (newstate == parse_state_out)) |
781aa1d1 | 1157 | break; |
6d6a48e5 | 1158 | return; /* parse_state_end_parse */ |
781aa1d1 MCC |
1159 | } |
1160 | ||
5490a7cb HV |
1161 | if (newstate == parse_state_next_frame) { |
1162 | frame->grabstate = frame_state_done; | |
8e6057b5 | 1163 | v4l2_get_timestamp(&(frame->timestamp)); |
781aa1d1 | 1164 | frame->sequence = usbvision->frame_num; |
781aa1d1 | 1165 | |
483dfdb6 TM |
1166 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); |
1167 | list_move_tail(&(frame->frame), &usbvision->outqueue); | |
5490a7cb | 1168 | usbvision->cur_frame = NULL; |
483dfdb6 TM |
1169 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); |
1170 | ||
1171 | usbvision->frame_num++; | |
781aa1d1 MCC |
1172 | |
1173 | /* This will cause the process to request another frame. */ | |
f2242ee5 TM |
1174 | if (waitqueue_active(&usbvision->wait_frame)) { |
1175 | PDEBUG(DBG_PARSE, "Wake up !"); | |
1176 | wake_up_interruptible(&usbvision->wait_frame); | |
781aa1d1 | 1177 | } |
6d6a48e5 | 1178 | } else { |
5490a7cb | 1179 | frame->grabstate = frame_state_grabbing; |
6d6a48e5 | 1180 | } |
781aa1d1 MCC |
1181 | |
1182 | /* Update the frame's uncompressed length. */ | |
1183 | frame->scanlength += copylen; | |
1184 | } | |
1185 | ||
1186 | ||
1187 | /* | |
1188 | * Make all of the blocks of data contiguous | |
1189 | */ | |
1190 | static int usbvision_compress_isochronous(struct usb_usbvision *usbvision, | |
f2242ee5 | 1191 | struct urb *urb) |
781aa1d1 MCC |
1192 | { |
1193 | unsigned char *packet_data; | |
1194 | int i, totlen = 0; | |
1195 | ||
1196 | for (i = 0; i < urb->number_of_packets; i++) { | |
1197 | int packet_len = urb->iso_frame_desc[i].actual_length; | |
1198 | int packet_stat = urb->iso_frame_desc[i].status; | |
1199 | ||
1200 | packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
1201 | ||
1202 | /* Detect and ignore errored packets */ | |
52cb0bf2 | 1203 | if (packet_stat) { /* packet_stat != 0 ????????????? */ |
781aa1d1 | 1204 | PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat); |
5490a7cb | 1205 | usbvision->isoc_err_count++; |
781aa1d1 MCC |
1206 | continue; |
1207 | } | |
1208 | ||
1209 | /* Detect and ignore empty packets */ | |
1210 | if (packet_len < 0) { | |
1211 | PDEBUG(DBG_ISOC, "error packet [%d]", i); | |
5490a7cb | 1212 | usbvision->isoc_skip_count++; |
781aa1d1 | 1213 | continue; |
6d6a48e5 | 1214 | } else if (packet_len == 0) { /* Frame end ????? */ |
781aa1d1 | 1215 | PDEBUG(DBG_ISOC, "null packet [%d]", i); |
6d6a48e5 | 1216 | usbvision->isocstate = isoc_state_no_frame; |
5490a7cb | 1217 | usbvision->isoc_skip_count++; |
781aa1d1 | 1218 | continue; |
6d6a48e5 | 1219 | } else if (packet_len > usbvision->isoc_packet_size) { |
5490a7cb HV |
1220 | PDEBUG(DBG_ISOC, "packet[%d] > isoc_packet_size", i); |
1221 | usbvision->isoc_skip_count++; | |
781aa1d1 MCC |
1222 | continue; |
1223 | } | |
1224 | ||
1225 | PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len); | |
1226 | ||
6d6a48e5 HV |
1227 | if (usbvision->isocstate == isoc_state_no_frame) { /* new frame begins */ |
1228 | usbvision->isocstate = isoc_state_in_frame; | |
781aa1d1 MCC |
1229 | scratch_mark_header(usbvision); |
1230 | usbvision_measure_bandwidth(usbvision); | |
1231 | PDEBUG(DBG_ISOC, "packet with header"); | |
1232 | } | |
1233 | ||
1234 | /* | |
1235 | * If usbvision continues to feed us with data but there is no | |
1236 | * consumption (if, for example, V4L client fell asleep) we | |
1237 | * may overflow the buffer. We have to move old data over to | |
1238 | * free room for new data. This is bad for old data. If we | |
1239 | * just drop new data then it's bad for new data... choose | |
1240 | * your favorite evil here. | |
1241 | */ | |
1242 | if (scratch_free(usbvision) < packet_len) { | |
781aa1d1 MCC |
1243 | usbvision->scratch_ovf_count++; |
1244 | PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d", | |
1245 | scratch_len(usbvision), packet_len); | |
1246 | scratch_rm_old(usbvision, packet_len - scratch_free(usbvision)); | |
1247 | } | |
1248 | ||
1249 | /* Now we know that there is enough room in scratch buffer */ | |
1250 | scratch_put(usbvision, packet_data, packet_len); | |
1251 | totlen += packet_len; | |
5490a7cb HV |
1252 | usbvision->isoc_data_count += packet_len; |
1253 | usbvision->isoc_packet_count++; | |
781aa1d1 MCC |
1254 | } |
1255 | #if ENABLE_HEXDUMP | |
1256 | if (totlen > 0) { | |
ff699e6b | 1257 | static int foo; |
6d6a48e5 | 1258 | |
781aa1d1 MCC |
1259 | if (foo < 1) { |
1260 | printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen); | |
1261 | usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen); | |
1262 | ++foo; | |
1263 | } | |
1264 | } | |
1265 | #endif | |
6d6a48e5 | 1266 | return totlen; |
781aa1d1 MCC |
1267 | } |
1268 | ||
5490a7cb | 1269 | static void usbvision_isoc_irq(struct urb *urb) |
781aa1d1 | 1270 | { |
5490a7cb | 1271 | int err_code = 0; |
f2242ee5 TM |
1272 | int len; |
1273 | struct usb_usbvision *usbvision = urb->context; | |
1274 | int i; | |
f2242ee5 | 1275 | struct usbvision_frame **f; |
781aa1d1 | 1276 | |
f2242ee5 TM |
1277 | /* We don't want to do anything if we are about to be removed! */ |
1278 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1279 | return; | |
781aa1d1 | 1280 | |
fe818d1d | 1281 | /* any urb with wrong status is ignored without acknowledgement */ |
6d6a48e5 | 1282 | if (urb->status == -ENOENT) |
fe818d1d | 1283 | return; |
fe818d1d | 1284 | |
5490a7cb | 1285 | f = &usbvision->cur_frame; |
781aa1d1 | 1286 | |
f2242ee5 | 1287 | /* Manage streaming interruption */ |
5490a7cb HV |
1288 | if (usbvision->streaming == stream_interrupt) { |
1289 | usbvision->streaming = stream_idle; | |
f2242ee5 | 1290 | if ((*f)) { |
5490a7cb HV |
1291 | (*f)->grabstate = frame_state_ready; |
1292 | (*f)->scanstate = scan_state_scanning; | |
f2242ee5 TM |
1293 | } |
1294 | PDEBUG(DBG_IRQ, "stream interrupted"); | |
1295 | wake_up_interruptible(&usbvision->wait_stream); | |
1296 | } | |
781aa1d1 | 1297 | |
f2242ee5 TM |
1298 | /* Copy the data received into our scratch buffer */ |
1299 | len = usbvision_compress_isochronous(usbvision, urb); | |
781aa1d1 | 1300 | |
5490a7cb | 1301 | usbvision->isoc_urb_count++; |
f2242ee5 | 1302 | usbvision->urb_length = len; |
781aa1d1 | 1303 | |
5490a7cb | 1304 | if (usbvision->streaming == stream_on) { |
f2242ee5 | 1305 | /* If we collected enough data let's parse! */ |
6d6a48e5 HV |
1306 | if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH && |
1307 | !list_empty(&(usbvision->inqueue))) { | |
fe818d1d TM |
1308 | if (!(*f)) { |
1309 | (*f) = list_entry(usbvision->inqueue.next, | |
1310 | struct usbvision_frame, | |
1311 | frame); | |
f2242ee5 | 1312 | } |
fe818d1d | 1313 | usbvision_parse_data(usbvision); |
6d6a48e5 | 1314 | } else { |
52cb0bf2 | 1315 | /* If we don't have a frame |
fe818d1d TM |
1316 | we're current working on, complain */ |
1317 | PDEBUG(DBG_IRQ, | |
1318 | "received data, but no one needs it"); | |
1319 | scratch_reset(usbvision); | |
781aa1d1 | 1320 | } |
6d6a48e5 | 1321 | } else { |
40bad678 TM |
1322 | PDEBUG(DBG_IRQ, "received data, but no one needs it"); |
1323 | scratch_reset(usbvision); | |
1324 | } | |
f2242ee5 | 1325 | |
f2242ee5 TM |
1326 | for (i = 0; i < USBVISION_URB_FRAMES; i++) { |
1327 | urb->iso_frame_desc[i].status = 0; | |
1328 | urb->iso_frame_desc[i].actual_length = 0; | |
1329 | } | |
1330 | ||
1331 | urb->status = 0; | |
1332 | urb->dev = usbvision->dev; | |
6d6a48e5 | 1333 | err_code = usb_submit_urb(urb, GFP_ATOMIC); |
f2242ee5 | 1334 | |
6d6a48e5 | 1335 | if (err_code) { |
be9ed511 MCC |
1336 | dev_err(&usbvision->dev->dev, |
1337 | "%s: usb_submit_urb failed: error %d\n", | |
5490a7cb | 1338 | __func__, err_code); |
fe818d1d | 1339 | } |
f2242ee5 | 1340 | |
781aa1d1 MCC |
1341 | return; |
1342 | } | |
1343 | ||
1344 | /*************************************/ | |
1345 | /* Low level usbvision access functions */ | |
1346 | /*************************************/ | |
1347 | ||
1348 | /* | |
1349 | * usbvision_read_reg() | |
1350 | * | |
1351 | * return < 0 -> Error | |
1352 | * >= 0 -> Data | |
1353 | */ | |
1354 | ||
483dfdb6 | 1355 | int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg) |
781aa1d1 | 1356 | { |
5490a7cb | 1357 | int err_code = 0; |
8926e845 | 1358 | unsigned char *buffer = usbvision->ctrl_urb_buffer; |
781aa1d1 MCC |
1359 | |
1360 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1361 | return -1; | |
1362 | ||
5490a7cb | 1363 | err_code = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1), |
781aa1d1 MCC |
1364 | USBVISION_OP_CODE, |
1365 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, | |
1366 | 0, (__u16) reg, buffer, 1, HZ); | |
1367 | ||
5490a7cb | 1368 | if (err_code < 0) { |
be9ed511 | 1369 | dev_err(&usbvision->dev->dev, |
5490a7cb HV |
1370 | "%s: failed: error %d\n", __func__, err_code); |
1371 | return err_code; | |
781aa1d1 MCC |
1372 | } |
1373 | return buffer[0]; | |
1374 | } | |
1375 | ||
1376 | /* | |
1377 | * usbvision_write_reg() | |
1378 | * | |
1379 | * return 1 -> Reg written | |
1380 | * 0 -> usbvision is not yet ready | |
1381 | * -1 -> Something went wrong | |
1382 | */ | |
1383 | ||
483dfdb6 | 1384 | int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, |
781aa1d1 MCC |
1385 | unsigned char value) |
1386 | { | |
5490a7cb | 1387 | int err_code = 0; |
781aa1d1 MCC |
1388 | |
1389 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1390 | return 0; | |
1391 | ||
8926e845 | 1392 | usbvision->ctrl_urb_buffer[0] = value; |
5490a7cb | 1393 | err_code = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
781aa1d1 MCC |
1394 | USBVISION_OP_CODE, |
1395 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
8926e845 HV |
1396 | USB_RECIP_ENDPOINT, 0, (__u16) reg, |
1397 | usbvision->ctrl_urb_buffer, 1, HZ); | |
781aa1d1 | 1398 | |
5490a7cb | 1399 | if (err_code < 0) { |
be9ed511 | 1400 | dev_err(&usbvision->dev->dev, |
5490a7cb | 1401 | "%s: failed: error %d\n", __func__, err_code); |
781aa1d1 | 1402 | } |
5490a7cb | 1403 | return err_code; |
781aa1d1 MCC |
1404 | } |
1405 | ||
1406 | ||
5490a7cb | 1407 | static void usbvision_ctrl_urb_complete(struct urb *urb) |
781aa1d1 MCC |
1408 | { |
1409 | struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context; | |
1410 | ||
1411 | PDEBUG(DBG_IRQ, ""); | |
5490a7cb | 1412 | usbvision->ctrl_urb_busy = 0; |
781aa1d1 MCC |
1413 | } |
1414 | ||
1415 | ||
6d6a48e5 HV |
1416 | static int usbvision_write_reg_irq(struct usb_usbvision *usbvision, int address, |
1417 | unsigned char *data, int len) | |
781aa1d1 | 1418 | { |
5490a7cb | 1419 | int err_code = 0; |
781aa1d1 MCC |
1420 | |
1421 | PDEBUG(DBG_IRQ, ""); | |
6d6a48e5 | 1422 | if (len > 8) |
781aa1d1 | 1423 | return -EFAULT; |
6d6a48e5 | 1424 | if (usbvision->ctrl_urb_busy) |
781aa1d1 | 1425 | return -EBUSY; |
5490a7cb | 1426 | usbvision->ctrl_urb_busy = 1; |
781aa1d1 | 1427 | |
5490a7cb HV |
1428 | usbvision->ctrl_urb_setup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT; |
1429 | usbvision->ctrl_urb_setup.bRequest = USBVISION_OP_CODE; | |
1430 | usbvision->ctrl_urb_setup.wValue = 0; | |
1431 | usbvision->ctrl_urb_setup.wIndex = cpu_to_le16(address); | |
1432 | usbvision->ctrl_urb_setup.wLength = cpu_to_le16(len); | |
6d6a48e5 | 1433 | usb_fill_control_urb(usbvision->ctrl_urb, usbvision->dev, |
781aa1d1 | 1434 | usb_sndctrlpipe(usbvision->dev, 1), |
5490a7cb HV |
1435 | (unsigned char *)&usbvision->ctrl_urb_setup, |
1436 | (void *)usbvision->ctrl_urb_buffer, len, | |
1437 | usbvision_ctrl_urb_complete, | |
781aa1d1 MCC |
1438 | (void *)usbvision); |
1439 | ||
5490a7cb | 1440 | memcpy(usbvision->ctrl_urb_buffer, data, len); |
781aa1d1 | 1441 | |
5490a7cb HV |
1442 | err_code = usb_submit_urb(usbvision->ctrl_urb, GFP_ATOMIC); |
1443 | if (err_code < 0) { | |
52cb0bf2 | 1444 | /* error in usb_submit_urb() */ |
5490a7cb | 1445 | usbvision->ctrl_urb_busy = 0; |
781aa1d1 | 1446 | } |
5490a7cb HV |
1447 | PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, err_code); |
1448 | return err_code; | |
781aa1d1 MCC |
1449 | } |
1450 | ||
1451 | ||
781aa1d1 MCC |
1452 | static int usbvision_init_compression(struct usb_usbvision *usbvision) |
1453 | { | |
5490a7cb HV |
1454 | usbvision->last_isoc_frame_num = -1; |
1455 | usbvision->isoc_data_count = 0; | |
1456 | usbvision->isoc_packet_count = 0; | |
1457 | usbvision->isoc_skip_count = 0; | |
1458 | usbvision->compr_level = 50; | |
1459 | usbvision->last_compr_level = -1; | |
1460 | usbvision->isoc_urb_count = 0; | |
1461 | usbvision->request_intra = 1; | |
1462 | usbvision->isoc_measure_bandwidth_count = 0; | |
1463 | ||
931387fa | 1464 | return 0; |
781aa1d1 MCC |
1465 | } |
1466 | ||
1467 | /* this function measures the used bandwidth since last call | |
1468 | * return: 0 : no error | |
5490a7cb | 1469 | * sets used_bandwidth to 1-100 : 1-100% of full bandwidth resp. to isoc_packet_size |
781aa1d1 | 1470 | */ |
6d6a48e5 | 1471 | static int usbvision_measure_bandwidth(struct usb_usbvision *usbvision) |
781aa1d1 | 1472 | { |
52cb0bf2 | 1473 | if (usbvision->isoc_measure_bandwidth_count < 2) { /* this gives an average bandwidth of 3 frames */ |
5490a7cb | 1474 | usbvision->isoc_measure_bandwidth_count++; |
931387fa | 1475 | return 0; |
5490a7cb HV |
1476 | } |
1477 | if ((usbvision->isoc_packet_size > 0) && (usbvision->isoc_packet_count > 0)) { | |
1478 | usbvision->used_bandwidth = usbvision->isoc_data_count / | |
1479 | (usbvision->isoc_packet_count + usbvision->isoc_skip_count) * | |
1480 | 100 / usbvision->isoc_packet_size; | |
1481 | } | |
1482 | usbvision->isoc_measure_bandwidth_count = 0; | |
1483 | usbvision->isoc_data_count = 0; | |
1484 | usbvision->isoc_packet_count = 0; | |
1485 | usbvision->isoc_skip_count = 0; | |
931387fa | 1486 | return 0; |
781aa1d1 MCC |
1487 | } |
1488 | ||
6d6a48e5 | 1489 | static int usbvision_adjust_compression(struct usb_usbvision *usbvision) |
781aa1d1 | 1490 | { |
5490a7cb | 1491 | int err_code = 0; |
781aa1d1 MCC |
1492 | unsigned char buffer[6]; |
1493 | ||
1494 | PDEBUG(DBG_IRQ, ""); | |
5490a7cb HV |
1495 | if ((adjust_compression) && (usbvision->used_bandwidth > 0)) { |
1496 | usbvision->compr_level += (usbvision->used_bandwidth - 90) / 2; | |
1497 | RESTRICT_TO_RANGE(usbvision->compr_level, 0, 100); | |
1498 | if (usbvision->compr_level != usbvision->last_compr_level) { | |
6d6a48e5 HV |
1499 | int distortion; |
1500 | ||
5490a7cb | 1501 | if (usbvision->bridge_type == BRIDGE_NT1004 || usbvision->bridge_type == BRIDGE_NT1005) { |
52cb0bf2 HV |
1502 | buffer[0] = (unsigned char)(4 + 16 * usbvision->compr_level / 100); /* PCM Threshold 1 */ |
1503 | buffer[1] = (unsigned char)(4 + 8 * usbvision->compr_level / 100); /* PCM Threshold 2 */ | |
6d6a48e5 HV |
1504 | distortion = 7 + 248 * usbvision->compr_level / 100; |
1505 | buffer[2] = (unsigned char)(distortion & 0xFF); /* Average distortion Threshold (inter) */ | |
1506 | buffer[3] = (unsigned char)(distortion & 0xFF); /* Average distortion Threshold (intra) */ | |
1507 | distortion = 1 + 42 * usbvision->compr_level / 100; | |
1508 | buffer[4] = (unsigned char)(distortion & 0xFF); /* Maximum distortion Threshold (inter) */ | |
1509 | buffer[5] = (unsigned char)(distortion & 0xFF); /* Maximum distortion Threshold (intra) */ | |
1510 | } else { /* BRIDGE_NT1003 */ | |
52cb0bf2 HV |
1511 | buffer[0] = (unsigned char)(4 + 16 * usbvision->compr_level / 100); /* PCM threshold 1 */ |
1512 | buffer[1] = (unsigned char)(4 + 8 * usbvision->compr_level / 100); /* PCM threshold 2 */ | |
6d6a48e5 HV |
1513 | distortion = 2 + 253 * usbvision->compr_level / 100; |
1514 | buffer[2] = (unsigned char)(distortion & 0xFF); /* distortion threshold bit0-7 */ | |
1515 | buffer[3] = 0; /* (unsigned char)((distortion >> 8) & 0x0F); distortion threshold bit 8-11 */ | |
1516 | distortion = 0 + 43 * usbvision->compr_level / 100; | |
1517 | buffer[4] = (unsigned char)(distortion & 0xFF); /* maximum distortion bit0-7 */ | |
1518 | buffer[5] = 0; /* (unsigned char)((distortion >> 8) & 0x01); maximum distortion bit 8 */ | |
781aa1d1 | 1519 | } |
5490a7cb | 1520 | err_code = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6); |
6d6a48e5 | 1521 | if (err_code == 0) { |
781aa1d1 MCC |
1522 | PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0], |
1523 | buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]); | |
5490a7cb | 1524 | usbvision->last_compr_level = usbvision->compr_level; |
781aa1d1 MCC |
1525 | } |
1526 | } | |
1527 | } | |
5490a7cb | 1528 | return err_code; |
781aa1d1 MCC |
1529 | } |
1530 | ||
6d6a48e5 | 1531 | static int usbvision_request_intra(struct usb_usbvision *usbvision) |
781aa1d1 | 1532 | { |
781aa1d1 MCC |
1533 | unsigned char buffer[1]; |
1534 | ||
1535 | PDEBUG(DBG_IRQ, ""); | |
5490a7cb | 1536 | usbvision->request_intra = 1; |
781aa1d1 MCC |
1537 | buffer[0] = 1; |
1538 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); | |
931387fa | 1539 | return 0; |
781aa1d1 MCC |
1540 | } |
1541 | ||
6d6a48e5 | 1542 | static int usbvision_unrequest_intra(struct usb_usbvision *usbvision) |
781aa1d1 | 1543 | { |
781aa1d1 MCC |
1544 | unsigned char buffer[1]; |
1545 | ||
1546 | PDEBUG(DBG_IRQ, ""); | |
5490a7cb | 1547 | usbvision->request_intra = 0; |
781aa1d1 MCC |
1548 | buffer[0] = 0; |
1549 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); | |
931387fa | 1550 | return 0; |
781aa1d1 MCC |
1551 | } |
1552 | ||
483dfdb6 TM |
1553 | /******************************* |
1554 | * usbvision utility functions | |
1555 | *******************************/ | |
781aa1d1 | 1556 | |
483dfdb6 | 1557 | int usbvision_power_off(struct usb_usbvision *usbvision) |
781aa1d1 | 1558 | { |
5490a7cb | 1559 | int err_code = 0; |
781aa1d1 MCC |
1560 | |
1561 | PDEBUG(DBG_FUNC, ""); | |
1562 | ||
5490a7cb | 1563 | err_code = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); |
6d6a48e5 | 1564 | if (err_code == 1) |
781aa1d1 | 1565 | usbvision->power = 0; |
6d6a48e5 | 1566 | PDEBUG(DBG_FUNC, "%s: err_code %d", (err_code != 1) ? "ERROR" : "power is off", err_code); |
5490a7cb | 1567 | return err_code; |
781aa1d1 MCC |
1568 | } |
1569 | ||
240d57bb OZ |
1570 | /* configure webcam image sensor using the serial port */ |
1571 | static int usbvision_init_webcam(struct usb_usbvision *usbvision) | |
1572 | { | |
1573 | int rc; | |
1574 | int i; | |
1575 | static char init_values[38][3] = { | |
1576 | { 0x04, 0x12, 0x08 }, { 0x05, 0xff, 0xc8 }, { 0x06, 0x18, 0x07 }, { 0x07, 0x90, 0x00 }, | |
1577 | { 0x09, 0x00, 0x00 }, { 0x0a, 0x00, 0x00 }, { 0x0b, 0x08, 0x00 }, { 0x0d, 0xcc, 0xcc }, | |
1578 | { 0x0e, 0x13, 0x14 }, { 0x10, 0x9b, 0x83 }, { 0x11, 0x5a, 0x3f }, { 0x12, 0xe4, 0x73 }, | |
1579 | { 0x13, 0x88, 0x84 }, { 0x14, 0x89, 0x80 }, { 0x15, 0x00, 0x20 }, { 0x16, 0x00, 0x00 }, | |
1580 | { 0x17, 0xff, 0xa0 }, { 0x18, 0x6b, 0x20 }, { 0x19, 0x22, 0x40 }, { 0x1a, 0x10, 0x07 }, | |
1581 | { 0x1b, 0x00, 0x47 }, { 0x1c, 0x03, 0xe0 }, { 0x1d, 0x00, 0x00 }, { 0x1e, 0x00, 0x00 }, | |
1582 | { 0x1f, 0x00, 0x00 }, { 0x20, 0x00, 0x00 }, { 0x21, 0x00, 0x00 }, { 0x22, 0x00, 0x00 }, | |
1583 | { 0x23, 0x00, 0x00 }, { 0x24, 0x00, 0x00 }, { 0x25, 0x00, 0x00 }, { 0x26, 0x00, 0x00 }, | |
1584 | { 0x27, 0x00, 0x00 }, { 0x28, 0x00, 0x00 }, { 0x29, 0x00, 0x00 }, { 0x08, 0x80, 0x60 }, | |
1585 | { 0x0f, 0x2d, 0x24 }, { 0x0c, 0x80, 0x80 } | |
1586 | }; | |
8926e845 | 1587 | unsigned char *value = usbvision->ctrl_urb_buffer; |
240d57bb OZ |
1588 | |
1589 | /* the only difference between PAL and NTSC init_values */ | |
1590 | if (usbvision_device_data[usbvision->dev_model].video_norm == V4L2_STD_NTSC) | |
1591 | init_values[4][1] = 0x34; | |
1592 | ||
1593 | for (i = 0; i < sizeof(init_values) / 3; i++) { | |
1594 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT); | |
1595 | memcpy(value, init_values[i], 3); | |
1596 | rc = usb_control_msg(usbvision->dev, | |
1597 | usb_sndctrlpipe(usbvision->dev, 1), | |
1598 | USBVISION_OP_CODE, | |
1599 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1600 | USB_RECIP_ENDPOINT, 0, | |
1601 | (__u16) USBVISION_SER_DAT1, value, | |
1602 | 3, HZ); | |
1603 | if (rc < 0) | |
1604 | return rc; | |
1605 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SIO); | |
1606 | /* write 3 bytes to the serial port using SIO mode */ | |
1607 | usbvision_write_reg(usbvision, USBVISION_SER_CONT, 3 | 0x10); | |
1608 | usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, 0); | |
1609 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT); | |
1610 | usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_IO_2); | |
1611 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_CLK_OUT); | |
1612 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_DAT_IO); | |
1613 | usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_SER_MODE_SOFT | USBVISION_CLK_OUT | USBVISION_DAT_IO); | |
1614 | } | |
1615 | ||
1616 | return 0; | |
1617 | } | |
1618 | ||
781aa1d1 MCC |
1619 | /* |
1620 | * usbvision_set_video_format() | |
1621 | * | |
1622 | */ | |
1623 | static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format) | |
1624 | { | |
1625 | static const char proc[] = "usbvision_set_video_format"; | |
8926e845 | 1626 | unsigned char *value = usbvision->ctrl_urb_buffer; |
781aa1d1 | 1627 | int rc; |
781aa1d1 MCC |
1628 | |
1629 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1630 | return 0; | |
1631 | ||
5490a7cb | 1632 | PDEBUG(DBG_FUNC, "isoc_mode %#02x", format); |
781aa1d1 MCC |
1633 | |
1634 | if ((format != ISOC_MODE_YUV422) | |
1635 | && (format != ISOC_MODE_YUV420) | |
1636 | && (format != ISOC_MODE_COMPRESS)) { | |
1637 | printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420", | |
1638 | format); | |
1639 | format = ISOC_MODE_YUV420; | |
1640 | } | |
52cb0bf2 HV |
1641 | value[0] = 0x0A; /* TODO: See the effect of the filter */ |
1642 | value[1] = format; /* Sets the VO_MODE register which follows FILT_CONT */ | |
781aa1d1 MCC |
1643 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
1644 | USBVISION_OP_CODE, | |
1645 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1646 | USB_RECIP_ENDPOINT, 0, | |
1647 | (__u16) USBVISION_FILT_CONT, value, 2, HZ); | |
1648 | ||
1649 | if (rc < 0) { | |
02c539d3 MCC |
1650 | printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - reconnect or reload driver.\n", |
1651 | proc, rc); | |
781aa1d1 | 1652 | } |
5490a7cb | 1653 | usbvision->isoc_mode = format; |
781aa1d1 MCC |
1654 | return rc; |
1655 | } | |
1656 | ||
1657 | /* | |
1658 | * usbvision_set_output() | |
1659 | * | |
1660 | */ | |
1661 | ||
483dfdb6 TM |
1662 | int usbvision_set_output(struct usb_usbvision *usbvision, int width, |
1663 | int height) | |
781aa1d1 | 1664 | { |
5490a7cb HV |
1665 | int err_code = 0; |
1666 | int usb_width, usb_height; | |
6d6a48e5 | 1667 | unsigned int frame_rate = 0, frame_drop = 0; |
8926e845 | 1668 | unsigned char *value = usbvision->ctrl_urb_buffer; |
781aa1d1 | 1669 | |
6d6a48e5 | 1670 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
781aa1d1 | 1671 | return 0; |
781aa1d1 MCC |
1672 | |
1673 | if (width > MAX_USB_WIDTH) { | |
5490a7cb | 1674 | usb_width = width / 2; |
781aa1d1 | 1675 | usbvision->stretch_width = 2; |
6d6a48e5 | 1676 | } else { |
5490a7cb | 1677 | usb_width = width; |
781aa1d1 MCC |
1678 | usbvision->stretch_width = 1; |
1679 | } | |
1680 | ||
1681 | if (height > MAX_USB_HEIGHT) { | |
5490a7cb | 1682 | usb_height = height / 2; |
781aa1d1 | 1683 | usbvision->stretch_height = 2; |
6d6a48e5 | 1684 | } else { |
5490a7cb | 1685 | usb_height = height; |
781aa1d1 MCC |
1686 | usbvision->stretch_height = 1; |
1687 | } | |
1688 | ||
5490a7cb HV |
1689 | RESTRICT_TO_RANGE(usb_width, MIN_FRAME_WIDTH, MAX_USB_WIDTH); |
1690 | usb_width &= ~(MIN_FRAME_WIDTH-1); | |
1691 | RESTRICT_TO_RANGE(usb_height, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT); | |
1692 | usb_height &= ~(1); | |
781aa1d1 MCC |
1693 | |
1694 | PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d", | |
5490a7cb | 1695 | usb_width, usb_height, width, height, |
781aa1d1 MCC |
1696 | usbvision->stretch_width, usbvision->stretch_height); |
1697 | ||
1698 | /* I'll not rewrite the same values */ | |
5490a7cb | 1699 | if ((usb_width != usbvision->curwidth) || (usb_height != usbvision->curheight)) { |
52cb0bf2 HV |
1700 | value[0] = usb_width & 0xff; /* LSB */ |
1701 | value[1] = (usb_width >> 8) & 0x03; /* MSB */ | |
1702 | value[2] = usb_height & 0xff; /* LSB */ | |
1703 | value[3] = (usb_height >> 8) & 0x03; /* MSB */ | |
781aa1d1 | 1704 | |
5490a7cb | 1705 | err_code = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
781aa1d1 MCC |
1706 | USBVISION_OP_CODE, |
1707 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, | |
1708 | 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ); | |
1709 | ||
5490a7cb | 1710 | if (err_code < 0) { |
be9ed511 | 1711 | dev_err(&usbvision->dev->dev, |
5490a7cb HV |
1712 | "%s failed: error %d\n", __func__, err_code); |
1713 | return err_code; | |
781aa1d1 | 1714 | } |
5490a7cb HV |
1715 | usbvision->curwidth = usbvision->stretch_width * usb_width; |
1716 | usbvision->curheight = usbvision->stretch_height * usb_height; | |
781aa1d1 MCC |
1717 | } |
1718 | ||
6d6a48e5 | 1719 | if (usbvision->isoc_mode == ISOC_MODE_YUV422) |
5490a7cb | 1720 | frame_rate = (usbvision->isoc_packet_size * 1000) / (usb_width * usb_height * 2); |
6d6a48e5 | 1721 | else if (usbvision->isoc_mode == ISOC_MODE_YUV420) |
5490a7cb | 1722 | frame_rate = (usbvision->isoc_packet_size * 1000) / ((usb_width * usb_height * 12) / 8); |
6d6a48e5 | 1723 | else |
5490a7cb | 1724 | frame_rate = FRAMERATE_MAX; |
781aa1d1 | 1725 | |
6d6a48e5 | 1726 | if (usbvision->tvnorm_id & V4L2_STD_625_50) |
5490a7cb | 1727 | frame_drop = frame_rate * 32 / 25 - 1; |
6d6a48e5 | 1728 | else if (usbvision->tvnorm_id & V4L2_STD_525_60) |
5490a7cb | 1729 | frame_drop = frame_rate * 32 / 30 - 1; |
781aa1d1 | 1730 | |
5490a7cb | 1731 | RESTRICT_TO_RANGE(frame_drop, FRAMERATE_MIN, FRAMERATE_MAX); |
781aa1d1 | 1732 | |
5490a7cb | 1733 | PDEBUG(DBG_FUNC, "frame_rate %d fps, frame_drop %d", frame_rate, frame_drop); |
781aa1d1 | 1734 | |
6d6a48e5 | 1735 | frame_drop = FRAMERATE_MAX; /* We can allow the maximum here, because dropping is controlled */ |
781aa1d1 | 1736 | |
240d57bb OZ |
1737 | if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) { |
1738 | if (usbvision_device_data[usbvision->dev_model].video_norm == V4L2_STD_PAL) | |
1739 | frame_drop = 25; | |
1740 | else | |
1741 | frame_drop = 30; | |
1742 | } | |
1743 | ||
5490a7cb HV |
1744 | /* frame_drop = 7; => frame_phase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ... |
1745 | => frame_skip = 4; | |
1746 | => frame_rate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25; | |
781aa1d1 | 1747 | |
5490a7cb HV |
1748 | frame_drop = 9; => frame_phase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ... |
1749 | => frame_skip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ... | |
1750 | => frame_rate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125; | |
781aa1d1 | 1751 | */ |
5490a7cb HV |
1752 | err_code = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frame_drop); |
1753 | return err_code; | |
781aa1d1 MCC |
1754 | } |
1755 | ||
1756 | ||
483dfdb6 TM |
1757 | /* |
1758 | * usbvision_frames_alloc | |
6f78e186 | 1759 | * allocate the required frames |
483dfdb6 | 1760 | */ |
6f78e186 | 1761 | int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames) |
483dfdb6 TM |
1762 | { |
1763 | int i; | |
1764 | ||
52cb0bf2 | 1765 | /* needs to be page aligned cause the buffers can be mapped individually! */ |
6d6a48e5 | 1766 | usbvision->max_frame_size = PAGE_ALIGN(usbvision->curwidth * |
6f78e186 TM |
1767 | usbvision->curheight * |
1768 | usbvision->palette.bytes_per_pixel); | |
483dfdb6 | 1769 | |
6f78e186 TM |
1770 | /* Try to do my best to allocate the frames the user want in the remaining memory */ |
1771 | usbvision->num_frames = number_of_frames; | |
1772 | while (usbvision->num_frames > 0) { | |
1773 | usbvision->fbuf_size = usbvision->num_frames * usbvision->max_frame_size; | |
6d6a48e5 HV |
1774 | usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size); |
1775 | if (usbvision->fbuf) | |
6f78e186 | 1776 | break; |
6f78e186 | 1777 | usbvision->num_frames--; |
483dfdb6 | 1778 | } |
6f78e186 | 1779 | |
483dfdb6 | 1780 | /* Allocate all buffers */ |
6f78e186 | 1781 | for (i = 0; i < usbvision->num_frames; i++) { |
483dfdb6 | 1782 | usbvision->frame[i].index = i; |
5490a7cb | 1783 | usbvision->frame[i].grabstate = frame_state_unused; |
483dfdb6 TM |
1784 | usbvision->frame[i].data = usbvision->fbuf + |
1785 | i * usbvision->max_frame_size; | |
1786 | /* | |
1787 | * Set default sizes for read operation. | |
1788 | */ | |
1789 | usbvision->stretch_width = 1; | |
1790 | usbvision->stretch_height = 1; | |
1791 | usbvision->frame[i].width = usbvision->curwidth; | |
1792 | usbvision->frame[i].height = usbvision->curheight; | |
1793 | usbvision->frame[i].bytes_read = 0; | |
1794 | } | |
6d6a48e5 HV |
1795 | PDEBUG(DBG_FUNC, "allocated %d frames (%d bytes per frame)", |
1796 | usbvision->num_frames, usbvision->max_frame_size); | |
6f78e186 | 1797 | return usbvision->num_frames; |
483dfdb6 TM |
1798 | } |
1799 | ||
1800 | /* | |
1801 | * usbvision_frames_free | |
1802 | * frees memory allocated for the frames | |
1803 | */ | |
1804 | void usbvision_frames_free(struct usb_usbvision *usbvision) | |
1805 | { | |
1806 | /* Have to free all that memory */ | |
6d6a48e5 | 1807 | PDEBUG(DBG_FUNC, "free %d frames", usbvision->num_frames); |
6f78e186 | 1808 | |
483dfdb6 TM |
1809 | if (usbvision->fbuf != NULL) { |
1810 | usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size); | |
1811 | usbvision->fbuf = NULL; | |
6f78e186 TM |
1812 | |
1813 | usbvision->num_frames = 0; | |
483dfdb6 TM |
1814 | } |
1815 | } | |
f2242ee5 TM |
1816 | /* |
1817 | * usbvision_empty_framequeues() | |
1818 | * prepare queues for incoming and outgoing frames | |
1819 | */ | |
483dfdb6 | 1820 | void usbvision_empty_framequeues(struct usb_usbvision *usbvision) |
f2242ee5 TM |
1821 | { |
1822 | u32 i; | |
1823 | ||
1824 | INIT_LIST_HEAD(&(usbvision->inqueue)); | |
1825 | INIT_LIST_HEAD(&(usbvision->outqueue)); | |
1826 | ||
1827 | for (i = 0; i < USBVISION_NUMFRAMES; i++) { | |
5490a7cb | 1828 | usbvision->frame[i].grabstate = frame_state_unused; |
f2242ee5 TM |
1829 | usbvision->frame[i].bytes_read = 0; |
1830 | } | |
1831 | } | |
1832 | ||
1833 | /* | |
1834 | * usbvision_stream_interrupt() | |
1835 | * stops streaming | |
1836 | */ | |
483dfdb6 | 1837 | int usbvision_stream_interrupt(struct usb_usbvision *usbvision) |
f2242ee5 TM |
1838 | { |
1839 | int ret = 0; | |
1840 | ||
1841 | /* stop reading from the device */ | |
1842 | ||
5490a7cb | 1843 | usbvision->streaming = stream_interrupt; |
f2242ee5 | 1844 | ret = wait_event_timeout(usbvision->wait_stream, |
5490a7cb | 1845 | (usbvision->streaming == stream_idle), |
f2242ee5 TM |
1846 | msecs_to_jiffies(USBVISION_NUMSBUF*USBVISION_URB_FRAMES)); |
1847 | return ret; | |
1848 | } | |
1849 | ||
781aa1d1 MCC |
1850 | /* |
1851 | * usbvision_set_compress_params() | |
1852 | * | |
1853 | */ | |
1854 | ||
1855 | static int usbvision_set_compress_params(struct usb_usbvision *usbvision) | |
1856 | { | |
c5913584 | 1857 | static const char proc[] = "usbvision_set_compression_params: "; |
781aa1d1 | 1858 | int rc; |
8926e845 | 1859 | unsigned char *value = usbvision->ctrl_urb_buffer; |
781aa1d1 | 1860 | |
52cb0bf2 HV |
1861 | value[0] = 0x0F; /* Intra-Compression cycle */ |
1862 | value[1] = 0x01; /* Reg.45 one line per strip */ | |
1863 | value[2] = 0x00; /* Reg.46 Force intra mode on all new frames */ | |
1864 | value[3] = 0x00; /* Reg.47 FORCE_UP <- 0 normal operation (not force) */ | |
1865 | value[4] = 0xA2; /* Reg.48 BUF_THR I'm not sure if this does something in not compressed mode. */ | |
1866 | value[5] = 0x00; /* Reg.49 DVI_YUV This has nothing to do with compression */ | |
1867 | ||
1868 | /* catched values for NT1004 */ | |
1869 | /* value[0] = 0xFF; Never apply intra mode automatically */ | |
1870 | /* value[1] = 0xF1; Use full frame height for virtual strip width; One line per strip */ | |
1871 | /* value[2] = 0x01; Force intra mode on all new frames */ | |
1872 | /* value[3] = 0x00; Strip size 400 Bytes; do not force up */ | |
1873 | /* value[4] = 0xA2; */ | |
781aa1d1 MCC |
1874 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
1875 | return 0; | |
1876 | ||
1877 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1878 | USBVISION_OP_CODE, | |
1879 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1880 | USB_RECIP_ENDPOINT, 0, | |
1881 | (__u16) USBVISION_INTRA_CYC, value, 5, HZ); | |
1882 | ||
1883 | if (rc < 0) { | |
02c539d3 MCC |
1884 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - reconnect or reload driver.\n", |
1885 | proc, rc); | |
781aa1d1 MCC |
1886 | return rc; |
1887 | } | |
1888 | ||
5490a7cb | 1889 | if (usbvision->bridge_type == BRIDGE_NT1004) { |
52cb0bf2 HV |
1890 | value[0] = 20; /* PCM Threshold 1 */ |
1891 | value[1] = 12; /* PCM Threshold 2 */ | |
6d6a48e5 HV |
1892 | value[2] = 255; /* Distortion Threshold inter */ |
1893 | value[3] = 255; /* Distortion Threshold intra */ | |
1894 | value[4] = 43; /* Max Distortion inter */ | |
1895 | value[5] = 43; /* Max Distortion intra */ | |
1896 | } else { | |
52cb0bf2 HV |
1897 | value[0] = 20; /* PCM Threshold 1 */ |
1898 | value[1] = 12; /* PCM Threshold 2 */ | |
6d6a48e5 HV |
1899 | value[2] = 255; /* Distortion Threshold d7-d0 */ |
1900 | value[3] = 0; /* Distortion Threshold d11-d8 */ | |
1901 | value[4] = 43; /* Max Distortion d7-d0 */ | |
1902 | value[5] = 0; /* Max Distortion d8 */ | |
781aa1d1 MCC |
1903 | } |
1904 | ||
1905 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1906 | return 0; | |
1907 | ||
1908 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
1909 | USBVISION_OP_CODE, | |
1910 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
1911 | USB_RECIP_ENDPOINT, 0, | |
1912 | (__u16) USBVISION_PCM_THR1, value, 6, HZ); | |
1913 | ||
1914 | if (rc < 0) { | |
02c539d3 MCC |
1915 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - reconnect or reload driver.\n", |
1916 | proc, rc); | |
781aa1d1 | 1917 | } |
781aa1d1 MCC |
1918 | return rc; |
1919 | } | |
1920 | ||
1921 | ||
1922 | /* | |
1923 | * usbvision_set_input() | |
1924 | * | |
1925 | * Set the input (saa711x, ...) size x y and other misc input params | |
1926 | * I've no idea if this parameters are right | |
1927 | * | |
1928 | */ | |
483dfdb6 | 1929 | int usbvision_set_input(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
1930 | { |
1931 | static const char proc[] = "usbvision_set_input: "; | |
1932 | int rc; | |
8926e845 | 1933 | unsigned char *value = usbvision->ctrl_urb_buffer; |
781aa1d1 MCC |
1934 | unsigned char dvi_yuv_value; |
1935 | ||
1936 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
1937 | return 0; | |
1938 | ||
1939 | /* Set input format expected from decoder*/ | |
5490a7cb HV |
1940 | if (usbvision_device_data[usbvision->dev_model].vin_reg1_override) { |
1941 | value[0] = usbvision_device_data[usbvision->dev_model].vin_reg1; | |
6d6a48e5 | 1942 | } else if (usbvision_device_data[usbvision->dev_model].codec == CODEC_SAA7113) { |
781aa1d1 MCC |
1943 | /* SAA7113 uses 8 bit output */ |
1944 | value[0] = USBVISION_8_422_SYNC; | |
1945 | } else { | |
1946 | /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses | |
1947 | * as that is how saa7111 is configured */ | |
1948 | value[0] = USBVISION_16_422_SYNC; | |
1949 | /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/ | |
1950 | } | |
1951 | ||
1952 | rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]); | |
1953 | if (rc < 0) { | |
02c539d3 MCC |
1954 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - reconnect or reload driver.\n", |
1955 | proc, rc); | |
781aa1d1 MCC |
1956 | return rc; |
1957 | } | |
1958 | ||
1959 | ||
5490a7cb | 1960 | if (usbvision->tvnorm_id & V4L2_STD_PAL) { |
781aa1d1 | 1961 | value[0] = 0xC0; |
52cb0bf2 | 1962 | value[1] = 0x02; /* 0x02C0 -> 704 Input video line length */ |
781aa1d1 | 1963 | value[2] = 0x20; |
52cb0bf2 | 1964 | value[3] = 0x01; /* 0x0120 -> 288 Input video n. of lines */ |
781aa1d1 | 1965 | value[4] = 0x60; |
52cb0bf2 | 1966 | value[5] = 0x00; /* 0x0060 -> 96 Input video h offset */ |
781aa1d1 | 1967 | value[6] = 0x16; |
52cb0bf2 | 1968 | value[7] = 0x00; /* 0x0016 -> 22 Input video v offset */ |
5490a7cb | 1969 | } else if (usbvision->tvnorm_id & V4L2_STD_SECAM) { |
781aa1d1 | 1970 | value[0] = 0xC0; |
52cb0bf2 | 1971 | value[1] = 0x02; /* 0x02C0 -> 704 Input video line length */ |
781aa1d1 | 1972 | value[2] = 0x20; |
52cb0bf2 | 1973 | value[3] = 0x01; /* 0x0120 -> 288 Input video n. of lines */ |
781aa1d1 | 1974 | value[4] = 0x01; |
52cb0bf2 | 1975 | value[5] = 0x00; /* 0x0001 -> 01 Input video h offset */ |
781aa1d1 | 1976 | value[6] = 0x01; |
52cb0bf2 | 1977 | value[7] = 0x00; /* 0x0001 -> 01 Input video v offset */ |
781aa1d1 MCC |
1978 | } else { /* V4L2_STD_NTSC */ |
1979 | value[0] = 0xD0; | |
52cb0bf2 | 1980 | value[1] = 0x02; /* 0x02D0 -> 720 Input video line length */ |
781aa1d1 | 1981 | value[2] = 0xF0; |
52cb0bf2 | 1982 | value[3] = 0x00; /* 0x00F0 -> 240 Input video number of lines */ |
781aa1d1 | 1983 | value[4] = 0x50; |
52cb0bf2 | 1984 | value[5] = 0x00; /* 0x0050 -> 80 Input video h offset */ |
781aa1d1 | 1985 | value[6] = 0x10; |
52cb0bf2 | 1986 | value[7] = 0x00; /* 0x0010 -> 16 Input video v offset */ |
781aa1d1 MCC |
1987 | } |
1988 | ||
240d57bb OZ |
1989 | /* webcam is only 480 pixels wide, both PAL and NTSC version */ |
1990 | if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) { | |
1991 | value[0] = 0xe0; | |
1992 | value[1] = 0x01; /* 0x01E0 -> 480 Input video line length */ | |
1993 | } | |
1994 | ||
5490a7cb | 1995 | if (usbvision_device_data[usbvision->dev_model].x_offset >= 0) { |
6d6a48e5 HV |
1996 | value[4] = usbvision_device_data[usbvision->dev_model].x_offset & 0xff; |
1997 | value[5] = (usbvision_device_data[usbvision->dev_model].x_offset & 0x0300) >> 8; | |
781aa1d1 MCC |
1998 | } |
1999 | ||
5490a7cb HV |
2000 | if (adjust_x_offset != -1) { |
2001 | value[4] = adjust_x_offset & 0xff; | |
2002 | value[5] = (adjust_x_offset & 0x0300) >> 8; | |
c6243d9c TM |
2003 | } |
2004 | ||
5490a7cb | 2005 | if (usbvision_device_data[usbvision->dev_model].y_offset >= 0) { |
6d6a48e5 HV |
2006 | value[6] = usbvision_device_data[usbvision->dev_model].y_offset & 0xff; |
2007 | value[7] = (usbvision_device_data[usbvision->dev_model].y_offset & 0x0300) >> 8; | |
781aa1d1 MCC |
2008 | } |
2009 | ||
5490a7cb HV |
2010 | if (adjust_y_offset != -1) { |
2011 | value[6] = adjust_y_offset & 0xff; | |
2012 | value[7] = (adjust_y_offset & 0x0300) >> 8; | |
c6243d9c TM |
2013 | } |
2014 | ||
781aa1d1 MCC |
2015 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
2016 | USBVISION_OP_CODE, /* USBVISION specific code */ | |
2017 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0, | |
2018 | (__u16) USBVISION_LXSIZE_I, value, 8, HZ); | |
2019 | if (rc < 0) { | |
02c539d3 MCC |
2020 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - reconnect or reload driver.\n", |
2021 | proc, rc); | |
781aa1d1 MCC |
2022 | return rc; |
2023 | } | |
2024 | ||
2025 | ||
2026 | dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */ | |
2027 | ||
6d6a48e5 | 2028 | if (usbvision_device_data[usbvision->dev_model].dvi_yuv_override) { |
5490a7cb | 2029 | dvi_yuv_value = usbvision_device_data[usbvision->dev_model].dvi_yuv; |
6d6a48e5 HV |
2030 | } else if (usbvision_device_data[usbvision->dev_model].codec == CODEC_SAA7113) { |
2031 | /* This changes as the fine sync control changes. Further investigation necessary */ | |
781aa1d1 MCC |
2032 | dvi_yuv_value = 0x06; |
2033 | } | |
2034 | ||
6d6a48e5 | 2035 | return usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value); |
781aa1d1 MCC |
2036 | } |
2037 | ||
2038 | ||
2039 | /* | |
2040 | * usbvision_set_dram_settings() | |
2041 | * | |
2042 | * Set the buffer address needed by the usbvision dram to operate | |
2043 | * This values has been taken with usbsnoop. | |
2044 | * | |
2045 | */ | |
2046 | ||
2047 | static int usbvision_set_dram_settings(struct usb_usbvision *usbvision) | |
2048 | { | |
8926e845 | 2049 | unsigned char *value = usbvision->ctrl_urb_buffer; |
781aa1d1 | 2050 | int rc; |
781aa1d1 | 2051 | |
5490a7cb | 2052 | if (usbvision->isoc_mode == ISOC_MODE_COMPRESS) { |
781aa1d1 MCC |
2053 | value[0] = 0x42; |
2054 | value[1] = 0x71; | |
2055 | value[2] = 0xff; | |
2056 | value[3] = 0x00; | |
2057 | value[4] = 0x98; | |
2058 | value[5] = 0xe0; | |
2059 | value[6] = 0x71; | |
2060 | value[7] = 0xff; | |
52cb0bf2 HV |
2061 | /* UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte) */ |
2062 | /* FDL: 0x00000-0x0E099 = 57498 Words */ | |
2063 | /* VDW: 0x0E3FF-0x3FFFF */ | |
6d6a48e5 | 2064 | } else { |
781aa1d1 MCC |
2065 | value[0] = 0x42; |
2066 | value[1] = 0x00; | |
2067 | value[2] = 0xff; | |
2068 | value[3] = 0x00; | |
2069 | value[4] = 0x00; | |
2070 | value[5] = 0x00; | |
2071 | value[6] = 0x00; | |
2072 | value[7] = 0xff; | |
2073 | } | |
2074 | /* These are the values of the address of the video buffer, | |
2075 | * they have to be loaded into the USBVISION_DRM_PRM1-8 | |
2076 | * | |
6d6a48e5 HV |
2077 | * Start address of video output buffer for read: drm_prm1-2 -> 0x00000 |
2078 | * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff | |
2079 | * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000 | |
781aa1d1 | 2080 | * Only used in compressed mode |
6d6a48e5 | 2081 | * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff |
781aa1d1 | 2082 | * Only used in compressed mode |
6d6a48e5 HV |
2083 | * Start address of video output buffer for write: drm_prm1-7 -> 0x00000 |
2084 | * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff | |
781aa1d1 MCC |
2085 | */ |
2086 | ||
2087 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
2088 | return 0; | |
2089 | ||
2090 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), | |
2091 | USBVISION_OP_CODE, /* USBVISION specific code */ | |
2092 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
2093 | USB_RECIP_ENDPOINT, 0, | |
2094 | (__u16) USBVISION_DRM_PRM1, value, 8, HZ); | |
2095 | ||
2096 | if (rc < 0) { | |
240d57bb | 2097 | dev_err(&usbvision->dev->dev, "%s: ERROR=%d\n", __func__, rc); |
781aa1d1 MCC |
2098 | return rc; |
2099 | } | |
2100 | ||
2101 | /* Restart the video buffer logic */ | |
6d6a48e5 HV |
2102 | rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR | |
2103 | USBVISION_RES_FDL | USBVISION_RES_VDW); | |
2104 | if (rc < 0) | |
781aa1d1 MCC |
2105 | return rc; |
2106 | rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00); | |
2107 | ||
2108 | return rc; | |
2109 | } | |
2110 | ||
2111 | /* | |
2112 | * () | |
2113 | * | |
2114 | * Power on the device, enables suspend-resume logic | |
2115 | * & reset the isoc End-Point | |
2116 | * | |
2117 | */ | |
2118 | ||
483dfdb6 | 2119 | int usbvision_power_on(struct usb_usbvision *usbvision) |
781aa1d1 | 2120 | { |
5490a7cb | 2121 | int err_code = 0; |
781aa1d1 MCC |
2122 | |
2123 | PDEBUG(DBG_FUNC, ""); | |
2124 | ||
2125 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); | |
2126 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, | |
6d6a48e5 | 2127 | USBVISION_SSPND_EN | USBVISION_RES2); |
38284ba3 | 2128 | |
240d57bb OZ |
2129 | if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) { |
2130 | usbvision_write_reg(usbvision, USBVISION_VIN_REG1, | |
2131 | USBVISION_16_422_SYNC | USBVISION_HVALID_PO); | |
2132 | usbvision_write_reg(usbvision, USBVISION_VIN_REG2, | |
2133 | USBVISION_NOHVALID | USBVISION_KEEP_BLANK); | |
2134 | } | |
781aa1d1 | 2135 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
6d6a48e5 | 2136 | USBVISION_SSPND_EN | USBVISION_PWR_VID); |
240d57bb | 2137 | mdelay(10); |
5490a7cb | 2138 | err_code = usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
6d6a48e5 HV |
2139 | USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2); |
2140 | if (err_code == 1) | |
781aa1d1 | 2141 | usbvision->power = 1; |
6d6a48e5 | 2142 | PDEBUG(DBG_FUNC, "%s: err_code %d", (err_code < 0) ? "ERROR" : "power is on", err_code); |
5490a7cb | 2143 | return err_code; |
781aa1d1 MCC |
2144 | } |
2145 | ||
2146 | ||
781aa1d1 MCC |
2147 | /* |
2148 | * usbvision_begin_streaming() | |
2149 | * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no | |
2150 | * idea about the rest | |
2151 | */ | |
483dfdb6 | 2152 | int usbvision_begin_streaming(struct usb_usbvision *usbvision) |
781aa1d1 | 2153 | { |
6d6a48e5 | 2154 | if (usbvision->isoc_mode == ISOC_MODE_COMPRESS) |
781aa1d1 | 2155 | usbvision_init_compression(usbvision); |
6d6a48e5 HV |
2156 | return usbvision_write_reg(usbvision, USBVISION_VIN_REG2, |
2157 | USBVISION_NOHVALID | usbvision->vin_reg2_preset); | |
781aa1d1 MCC |
2158 | } |
2159 | ||
2160 | /* | |
2161 | * usbvision_restart_isoc() | |
2162 | * Not sure yet if touching here PWR_REG make loose the config | |
2163 | */ | |
2164 | ||
483dfdb6 | 2165 | int usbvision_restart_isoc(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2166 | { |
2167 | int ret; | |
2168 | ||
6d6a48e5 HV |
2169 | ret = usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
2170 | USBVISION_SSPND_EN | USBVISION_PWR_VID); | |
2171 | if (ret < 0) | |
781aa1d1 | 2172 | return ret; |
6d6a48e5 | 2173 | ret = usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
781aa1d1 | 2174 | USBVISION_SSPND_EN | USBVISION_PWR_VID | |
6d6a48e5 HV |
2175 | USBVISION_RES2); |
2176 | if (ret < 0) | |
781aa1d1 | 2177 | return ret; |
6d6a48e5 | 2178 | ret = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, |
781aa1d1 | 2179 | USBVISION_KEEP_BLANK | USBVISION_NOHVALID | |
6d6a48e5 HV |
2180 | usbvision->vin_reg2_preset); |
2181 | if (ret < 0) | |
2182 | return ret; | |
781aa1d1 MCC |
2183 | |
2184 | /* TODO: schedule timeout */ | |
6d6a48e5 HV |
2185 | while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) & 0x01) != 1) |
2186 | ; | |
781aa1d1 MCC |
2187 | |
2188 | return 0; | |
2189 | } | |
2190 | ||
483dfdb6 | 2191 | int usbvision_audio_off(struct usb_usbvision *usbvision) |
781aa1d1 MCC |
2192 | { |
2193 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) { | |
6d6a48e5 | 2194 | printk(KERN_ERR "usbvision_audio_off: can't write reg\n"); |
781aa1d1 MCC |
2195 | return -1; |
2196 | } | |
5490a7cb HV |
2197 | usbvision->audio_mute = 0; |
2198 | usbvision->audio_channel = USBVISION_AUDIO_MUTE; | |
781aa1d1 MCC |
2199 | return 0; |
2200 | } | |
2201 | ||
5490a7cb | 2202 | int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel) |
781aa1d1 | 2203 | { |
5490a7cb HV |
2204 | if (!usbvision->audio_mute) { |
2205 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, audio_channel) < 0) { | |
781aa1d1 MCC |
2206 | printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n"); |
2207 | return -1; | |
2208 | } | |
2209 | } | |
5490a7cb | 2210 | usbvision->audio_channel = audio_channel; |
781aa1d1 MCC |
2211 | return 0; |
2212 | } | |
2213 | ||
6d6a48e5 | 2214 | int usbvision_setup(struct usb_usbvision *usbvision, int format) |
781aa1d1 | 2215 | { |
240d57bb OZ |
2216 | if (usbvision_device_data[usbvision->dev_model].codec == CODEC_WEBCAM) |
2217 | usbvision_init_webcam(usbvision); | |
483dfdb6 | 2218 | usbvision_set_video_format(usbvision, format); |
781aa1d1 MCC |
2219 | usbvision_set_dram_settings(usbvision); |
2220 | usbvision_set_compress_params(usbvision); | |
2221 | usbvision_set_input(usbvision); | |
2222 | usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT); | |
2223 | usbvision_restart_isoc(usbvision); | |
18d8a454 | 2224 | |
781aa1d1 MCC |
2225 | /* cosas del PCM */ |
2226 | return USBVISION_IS_OPERATIONAL(usbvision); | |
2227 | } | |
2228 | ||
2a9f8b5d TM |
2229 | int usbvision_set_alternate(struct usb_usbvision *dev) |
2230 | { | |
5490a7cb | 2231 | int err_code, prev_alt = dev->iface_alt; |
2a9f8b5d TM |
2232 | int i; |
2233 | ||
6d6a48e5 HV |
2234 | dev->iface_alt = 0; |
2235 | for (i = 0; i < dev->num_alt; i++) | |
2236 | if (dev->alt_max_pkt_size[i] > dev->alt_max_pkt_size[dev->iface_alt]) | |
2237 | dev->iface_alt = i; | |
5490a7cb HV |
2238 | |
2239 | if (dev->iface_alt != prev_alt) { | |
2240 | dev->isoc_packet_size = dev->alt_max_pkt_size[dev->iface_alt]; | |
6d6a48e5 HV |
2241 | PDEBUG(DBG_FUNC, "setting alternate %d with max_packet_size=%u", |
2242 | dev->iface_alt, dev->isoc_packet_size); | |
5490a7cb HV |
2243 | err_code = usb_set_interface(dev->dev, dev->iface, dev->iface_alt); |
2244 | if (err_code < 0) { | |
be9ed511 MCC |
2245 | dev_err(&dev->dev->dev, |
2246 | "cannot change alternate number to %d (error=%i)\n", | |
5490a7cb HV |
2247 | dev->iface_alt, err_code); |
2248 | return err_code; | |
2a9f8b5d TM |
2249 | } |
2250 | } | |
2251 | ||
5490a7cb | 2252 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", dev->isoc_packet_size); |
2a9f8b5d TM |
2253 | |
2254 | return 0; | |
2255 | } | |
2256 | ||
483dfdb6 TM |
2257 | /* |
2258 | * usbvision_init_isoc() | |
2259 | * | |
2260 | */ | |
2261 | int usbvision_init_isoc(struct usb_usbvision *usbvision) | |
2262 | { | |
2263 | struct usb_device *dev = usbvision->dev; | |
5490a7cb | 2264 | int buf_idx, err_code, reg_value; |
fe818d1d | 2265 | int sb_size; |
483dfdb6 TM |
2266 | |
2267 | if (!USBVISION_IS_OPERATIONAL(usbvision)) | |
2268 | return -EFAULT; | |
2269 | ||
5490a7cb | 2270 | usbvision->cur_frame = NULL; |
483dfdb6 TM |
2271 | scratch_reset(usbvision); |
2272 | ||
2273 | /* Alternate interface 1 is is the biggest frame size */ | |
5490a7cb HV |
2274 | err_code = usbvision_set_alternate(usbvision); |
2275 | if (err_code < 0) { | |
2276 | usbvision->last_error = err_code; | |
781aa1d1 MCC |
2277 | return -EBUSY; |
2278 | } | |
5490a7cb | 2279 | sb_size = USBVISION_URB_FRAMES * usbvision->isoc_packet_size; |
781aa1d1 | 2280 | |
5490a7cb | 2281 | reg_value = (16 - usbvision_read_reg(usbvision, |
fe818d1d | 2282 | USBVISION_ALTER_REG)) & 0x0F; |
781aa1d1 | 2283 | |
5490a7cb | 2284 | usbvision->usb_bandwidth = reg_value >> 1; |
fe818d1d TM |
2285 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", |
2286 | usbvision->usb_bandwidth); | |
781aa1d1 MCC |
2287 | |
2288 | ||
2289 | ||
2290 | /* We double buffer the Iso lists */ | |
2291 | ||
5490a7cb | 2292 | for (buf_idx = 0; buf_idx < USBVISION_NUMSBUF; buf_idx++) { |
781aa1d1 MCC |
2293 | int j, k; |
2294 | struct urb *urb; | |
2295 | ||
a1ed551c | 2296 | urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
aab74635 | 2297 | if (urb == NULL) |
781aa1d1 | 2298 | return -ENOMEM; |
5490a7cb HV |
2299 | usbvision->sbuf[buf_idx].urb = urb; |
2300 | usbvision->sbuf[buf_idx].data = | |
997ea58e DM |
2301 | usb_alloc_coherent(usbvision->dev, |
2302 | sb_size, | |
2303 | GFP_KERNEL, | |
2304 | &urb->transfer_dma); | |
781aa1d1 MCC |
2305 | urb->dev = dev; |
2306 | urb->context = usbvision; | |
2307 | urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp); | |
f8768970 | 2308 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
781aa1d1 | 2309 | urb->interval = 1; |
5490a7cb HV |
2310 | urb->transfer_buffer = usbvision->sbuf[buf_idx].data; |
2311 | urb->complete = usbvision_isoc_irq; | |
781aa1d1 MCC |
2312 | urb->number_of_packets = USBVISION_URB_FRAMES; |
2313 | urb->transfer_buffer_length = | |
5490a7cb | 2314 | usbvision->isoc_packet_size * USBVISION_URB_FRAMES; |
781aa1d1 | 2315 | for (j = k = 0; j < USBVISION_URB_FRAMES; j++, |
5490a7cb | 2316 | k += usbvision->isoc_packet_size) { |
781aa1d1 | 2317 | urb->iso_frame_desc[j].offset = k; |
fe818d1d | 2318 | urb->iso_frame_desc[j].length = |
5490a7cb | 2319 | usbvision->isoc_packet_size; |
781aa1d1 MCC |
2320 | } |
2321 | } | |
2322 | ||
781aa1d1 | 2323 | /* Submit all URBs */ |
5490a7cb | 2324 | for (buf_idx = 0; buf_idx < USBVISION_NUMSBUF; buf_idx++) { |
ff1522d5 MCC |
2325 | err_code = usb_submit_urb(usbvision->sbuf[buf_idx].urb, |
2326 | GFP_KERNEL); | |
5490a7cb | 2327 | if (err_code) { |
be9ed511 MCC |
2328 | dev_err(&usbvision->dev->dev, |
2329 | "%s: usb_submit_urb(%d) failed: error %d\n", | |
5490a7cb | 2330 | __func__, buf_idx, err_code); |
781aa1d1 MCC |
2331 | } |
2332 | } | |
2333 | ||
5490a7cb | 2334 | usbvision->streaming = stream_idle; |
fe818d1d | 2335 | PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", |
d2db42dd | 2336 | __func__, |
fe818d1d | 2337 | usbvision->video_endp); |
781aa1d1 MCC |
2338 | return 0; |
2339 | } | |
2340 | ||
2341 | /* | |
2342 | * usbvision_stop_isoc() | |
2343 | * | |
2344 | * This procedure stops streaming and deallocates URBs. Then it | |
2345 | * activates zero-bandwidth alt. setting of the video interface. | |
2346 | * | |
2347 | */ | |
483dfdb6 | 2348 | void usbvision_stop_isoc(struct usb_usbvision *usbvision) |
781aa1d1 | 2349 | { |
5490a7cb HV |
2350 | int buf_idx, err_code, reg_value; |
2351 | int sb_size = USBVISION_URB_FRAMES * usbvision->isoc_packet_size; | |
781aa1d1 | 2352 | |
5490a7cb | 2353 | if ((usbvision->streaming == stream_off) || (usbvision->dev == NULL)) |
781aa1d1 MCC |
2354 | return; |
2355 | ||
2356 | /* Unschedule all of the iso td's */ | |
5490a7cb HV |
2357 | for (buf_idx = 0; buf_idx < USBVISION_NUMSBUF; buf_idx++) { |
2358 | usb_kill_urb(usbvision->sbuf[buf_idx].urb); | |
6d6a48e5 | 2359 | if (usbvision->sbuf[buf_idx].data) { |
997ea58e DM |
2360 | usb_free_coherent(usbvision->dev, |
2361 | sb_size, | |
5490a7cb HV |
2362 | usbvision->sbuf[buf_idx].data, |
2363 | usbvision->sbuf[buf_idx].urb->transfer_dma); | |
38284ba3 | 2364 | } |
5490a7cb HV |
2365 | usb_free_urb(usbvision->sbuf[buf_idx].urb); |
2366 | usbvision->sbuf[buf_idx].urb = NULL; | |
18d8a454 | 2367 | } |
781aa1d1 | 2368 | |
5490a7cb HV |
2369 | PDEBUG(DBG_ISOC, "%s: streaming=stream_off\n", __func__); |
2370 | usbvision->streaming = stream_off; | |
781aa1d1 MCC |
2371 | |
2372 | if (!usbvision->remove_pending) { | |
781aa1d1 | 2373 | /* Set packet size to 0 */ |
6d6a48e5 | 2374 | usbvision->iface_alt = 0; |
5490a7cb HV |
2375 | err_code = usb_set_interface(usbvision->dev, usbvision->iface, |
2376 | usbvision->iface_alt); | |
2377 | if (err_code < 0) { | |
be9ed511 MCC |
2378 | dev_err(&usbvision->dev->dev, |
2379 | "%s: usb_set_interface() failed: error %d\n", | |
5490a7cb HV |
2380 | __func__, err_code); |
2381 | usbvision->last_error = err_code; | |
781aa1d1 | 2382 | } |
5490a7cb HV |
2383 | reg_value = (16-usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; |
2384 | usbvision->isoc_packet_size = | |
2385 | (reg_value == 0) ? 0 : (reg_value * 64) - 1; | |
fe818d1d | 2386 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", |
5490a7cb | 2387 | usbvision->isoc_packet_size); |
781aa1d1 | 2388 | |
5490a7cb | 2389 | usbvision->usb_bandwidth = reg_value >> 1; |
fe818d1d TM |
2390 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", |
2391 | usbvision->usb_bandwidth); | |
781aa1d1 MCC |
2392 | } |
2393 | } | |
2394 | ||
483dfdb6 | 2395 | int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) |
781aa1d1 | 2396 | { |
66a17879 TM |
2397 | /* inputs #0 and #3 are constant for every SAA711x. */ |
2398 | /* inputs #1 and #2 are variable for SAA7111 and SAA7113 */ | |
6d6a48e5 HV |
2399 | int mode[4] = { SAA7115_COMPOSITE0, 0, 0, SAA7115_COMPOSITE3 }; |
2400 | int audio[] = { 1, 0, 0, 0 }; | |
52cb0bf2 HV |
2401 | /* channel 0 is TV with audiochannel 1 (tuner mono) */ |
2402 | /* channel 1 is Composite with audio channel 0 (line in) */ | |
2403 | /* channel 2 is S-Video with audio channel 0 (line in) */ | |
2404 | /* channel 3 is additional video inputs to the device with audio channel 0 (line in) */ | |
781aa1d1 MCC |
2405 | |
2406 | RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs); | |
f2242ee5 | 2407 | usbvision->ctl_input = channel; |
781aa1d1 | 2408 | |
52cb0bf2 HV |
2409 | /* set the new channel */ |
2410 | /* Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video */ | |
2411 | /* Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red */ | |
781aa1d1 | 2412 | |
5490a7cb | 2413 | switch (usbvision_device_data[usbvision->dev_model].codec) { |
6d6a48e5 HV |
2414 | case CODEC_SAA7113: |
2415 | mode[1] = SAA7115_COMPOSITE2; | |
2416 | if (switch_svideo_input) { | |
2417 | /* To handle problems with S-Video Input for | |
2418 | * some devices. Use switch_svideo_input | |
2419 | * parameter when loading the module.*/ | |
2420 | mode[2] = SAA7115_COMPOSITE1; | |
2421 | } else { | |
66a17879 | 2422 | mode[2] = SAA7115_SVIDEO1; |
6d6a48e5 HV |
2423 | } |
2424 | break; | |
2425 | case CODEC_SAA7111: | |
2426 | default: | |
2427 | /* modes for saa7111 */ | |
2428 | mode[1] = SAA7115_COMPOSITE1; | |
2429 | mode[2] = SAA7115_SVIDEO1; | |
2430 | break; | |
781aa1d1 | 2431 | } |
5325b427 | 2432 | call_all(usbvision, video, s_routing, mode[channel], 0, 0); |
781aa1d1 MCC |
2433 | usbvision_set_audio(usbvision, audio[channel]); |
2434 | return 0; | |
2435 | } |