]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | |
3 | bttv-risc.c -- interfaces to other kernel modules | |
4 | ||
5 | bttv risc code handling | |
6 | - memory management | |
7 | - generation | |
8 | ||
9 | (c) 2000-2003 Gerd Knorr <kraxel@bytesex.org> | |
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. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | ||
25 | */ | |
26 | ||
27 | #include <linux/module.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/pci.h> | |
30 | #include <linux/vmalloc.h> | |
31 | #include <linux/interrupt.h> | |
32 | #include <asm/page.h> | |
33 | #include <asm/pgtable.h> | |
34 | ||
35 | #include "bttvp.h" | |
36 | ||
37 | #define VCR_HACK_LINES 4 | |
38 | ||
39 | /* ---------------------------------------------------------- */ | |
40 | /* risc code generators */ | |
41 | ||
42 | int | |
43 | bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc, | |
44 | struct scatterlist *sglist, | |
45 | unsigned int offset, unsigned int bpl, | |
e5bd0260 MS |
46 | unsigned int padding, unsigned int skip_lines, |
47 | unsigned int store_lines) | |
1da177e4 LT |
48 | { |
49 | u32 instructions,line,todo; | |
50 | struct scatterlist *sg; | |
51 | u32 *rp; | |
52 | int rc; | |
53 | ||
54 | /* estimate risc mem: worst case is one write per page border + | |
4a287cfe DS |
55 | one write per scan line + sync + jump (all 2 dwords). padding |
56 | can cause next bpl to start close to a page border. First DMA | |
57 | region may be smaller than PAGE_SIZE */ | |
e5bd0260 MS |
58 | instructions = skip_lines * 4; |
59 | instructions += (1 + ((bpl + padding) * store_lines) | |
60 | / PAGE_SIZE + store_lines) * 8; | |
61 | instructions += 2 * 8; | |
62 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions)) < 0) | |
1da177e4 LT |
63 | return rc; |
64 | ||
65 | /* sync instruction */ | |
66 | rp = risc->cpu; | |
67 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); | |
68 | *(rp++) = cpu_to_le32(0); | |
69 | ||
e5bd0260 MS |
70 | while (skip_lines-- > 0) { |
71 | *(rp++) = cpu_to_le32(BT848_RISC_SKIP | BT848_RISC_SOL | | |
72 | BT848_RISC_EOL | bpl); | |
73 | } | |
74 | ||
1da177e4 LT |
75 | /* scan lines */ |
76 | sg = sglist; | |
e5bd0260 | 77 | for (line = 0; line < store_lines; line++) { |
1da177e4 | 78 | if ((btv->opt_vcr_hack) && |
e5bd0260 | 79 | (line >= (store_lines - VCR_HACK_LINES))) |
1da177e4 LT |
80 | continue; |
81 | while (offset && offset >= sg_dma_len(sg)) { | |
82 | offset -= sg_dma_len(sg); | |
83 | sg++; | |
84 | } | |
85 | if (bpl <= sg_dma_len(sg)-offset) { | |
86 | /* fits into current chunk */ | |
4ac97914 | 87 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL| |
1da177e4 | 88 | BT848_RISC_EOL|bpl); |
4ac97914 MCC |
89 | *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset); |
90 | offset+=bpl; | |
1da177e4 LT |
91 | } else { |
92 | /* scanline needs to be splitted */ | |
4ac97914 MCC |
93 | todo = bpl; |
94 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL| | |
1da177e4 | 95 | (sg_dma_len(sg)-offset)); |
4ac97914 MCC |
96 | *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset); |
97 | todo -= (sg_dma_len(sg)-offset); | |
98 | offset = 0; | |
99 | sg++; | |
100 | while (todo > sg_dma_len(sg)) { | |
f2421ca3 | 101 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE| |
1da177e4 | 102 | sg_dma_len(sg)); |
f2421ca3 | 103 | *(rp++)=cpu_to_le32(sg_dma_address(sg)); |
1da177e4 LT |
104 | todo -= sg_dma_len(sg); |
105 | sg++; | |
106 | } | |
4ac97914 | 107 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_EOL| |
1da177e4 LT |
108 | todo); |
109 | *(rp++)=cpu_to_le32(sg_dma_address(sg)); | |
110 | offset += todo; | |
111 | } | |
112 | offset += padding; | |
113 | } | |
114 | ||
115 | /* save pointer to jmp instruction address */ | |
116 | risc->jmp = rp; | |
4a287cfe | 117 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
118 | return 0; |
119 | } | |
120 | ||
121 | static int | |
122 | bttv_risc_planar(struct bttv *btv, struct btcx_riscmem *risc, | |
123 | struct scatterlist *sglist, | |
124 | unsigned int yoffset, unsigned int ybpl, | |
125 | unsigned int ypadding, unsigned int ylines, | |
126 | unsigned int uoffset, unsigned int voffset, | |
127 | unsigned int hshift, unsigned int vshift, | |
128 | unsigned int cpadding) | |
129 | { | |
130 | unsigned int instructions,line,todo,ylen,chroma; | |
131 | u32 *rp,ri; | |
132 | struct scatterlist *ysg; | |
133 | struct scatterlist *usg; | |
134 | struct scatterlist *vsg; | |
135 | int topfield = (0 == yoffset); | |
136 | int rc; | |
137 | ||
138 | /* estimate risc mem: worst case is one write per page border + | |
139 | one write per scan line (5 dwords) | |
140 | plus sync + jump (2 dwords) */ | |
e5bd0260 MS |
141 | instructions = ((3 + (ybpl + ypadding) * ylines * 2) |
142 | / PAGE_SIZE) + ylines; | |
1da177e4 LT |
143 | instructions += 2; |
144 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions*4*5)) < 0) | |
145 | return rc; | |
146 | ||
147 | /* sync instruction */ | |
148 | rp = risc->cpu; | |
149 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM3); | |
150 | *(rp++) = cpu_to_le32(0); | |
151 | ||
152 | /* scan lines */ | |
153 | ysg = sglist; | |
154 | usg = sglist; | |
155 | vsg = sglist; | |
156 | for (line = 0; line < ylines; line++) { | |
157 | if ((btv->opt_vcr_hack) && | |
158 | (line >= (ylines - VCR_HACK_LINES))) | |
159 | continue; | |
160 | switch (vshift) { | |
161 | case 0: | |
162 | chroma = 1; | |
163 | break; | |
164 | case 1: | |
165 | if (topfield) | |
166 | chroma = ((line & 1) == 0); | |
167 | else | |
168 | chroma = ((line & 1) == 1); | |
169 | break; | |
170 | case 2: | |
171 | if (topfield) | |
172 | chroma = ((line & 3) == 0); | |
173 | else | |
174 | chroma = ((line & 3) == 2); | |
175 | break; | |
176 | default: | |
177 | chroma = 0; | |
178 | break; | |
179 | } | |
180 | ||
181 | for (todo = ybpl; todo > 0; todo -= ylen) { | |
182 | /* go to next sg entry if needed */ | |
183 | while (yoffset && yoffset >= sg_dma_len(ysg)) { | |
184 | yoffset -= sg_dma_len(ysg); | |
185 | ysg++; | |
186 | } | |
187 | while (uoffset && uoffset >= sg_dma_len(usg)) { | |
188 | uoffset -= sg_dma_len(usg); | |
189 | usg++; | |
190 | } | |
191 | while (voffset && voffset >= sg_dma_len(vsg)) { | |
192 | voffset -= sg_dma_len(vsg); | |
193 | vsg++; | |
194 | } | |
195 | ||
196 | /* calculate max number of bytes we can write */ | |
197 | ylen = todo; | |
198 | if (yoffset + ylen > sg_dma_len(ysg)) | |
199 | ylen = sg_dma_len(ysg) - yoffset; | |
200 | if (chroma) { | |
201 | if (uoffset + (ylen>>hshift) > sg_dma_len(usg)) | |
202 | ylen = (sg_dma_len(usg) - uoffset) << hshift; | |
203 | if (voffset + (ylen>>hshift) > sg_dma_len(vsg)) | |
204 | ylen = (sg_dma_len(vsg) - voffset) << hshift; | |
205 | ri = BT848_RISC_WRITE123; | |
206 | } else { | |
207 | ri = BT848_RISC_WRITE1S23; | |
208 | } | |
209 | if (ybpl == todo) | |
210 | ri |= BT848_RISC_SOL; | |
211 | if (ylen == todo) | |
212 | ri |= BT848_RISC_EOL; | |
213 | ||
214 | /* write risc instruction */ | |
4ac97914 MCC |
215 | *(rp++)=cpu_to_le32(ri | ylen); |
216 | *(rp++)=cpu_to_le32(((ylen >> hshift) << 16) | | |
1da177e4 LT |
217 | (ylen >> hshift)); |
218 | *(rp++)=cpu_to_le32(sg_dma_address(ysg)+yoffset); | |
219 | yoffset += ylen; | |
220 | if (chroma) { | |
221 | *(rp++)=cpu_to_le32(sg_dma_address(usg)+uoffset); | |
222 | uoffset += ylen >> hshift; | |
223 | *(rp++)=cpu_to_le32(sg_dma_address(vsg)+voffset); | |
224 | voffset += ylen >> hshift; | |
225 | } | |
226 | } | |
227 | yoffset += ypadding; | |
228 | if (chroma) { | |
229 | uoffset += cpadding; | |
230 | voffset += cpadding; | |
231 | } | |
232 | } | |
233 | ||
234 | /* save pointer to jmp instruction address */ | |
235 | risc->jmp = rp; | |
4a287cfe | 236 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
237 | return 0; |
238 | } | |
239 | ||
240 | static int | |
241 | bttv_risc_overlay(struct bttv *btv, struct btcx_riscmem *risc, | |
242 | const struct bttv_format *fmt, struct bttv_overlay *ov, | |
243 | int skip_even, int skip_odd) | |
244 | { | |
3203f94a | 245 | int dwords,rc,line,maxy,start,end,skip,nskips; |
1da177e4 LT |
246 | struct btcx_skiplist *skips; |
247 | u32 *rp,ri,ra; | |
248 | u32 addr; | |
249 | ||
250 | /* skip list for window clipping */ | |
251 | if (NULL == (skips = kmalloc(sizeof(*skips) * ov->nclips,GFP_KERNEL))) | |
252 | return -ENOMEM; | |
253 | ||
3203f94a | 254 | /* estimate risc mem: worst case is (1.5*clip+1) * lines instructions |
1da177e4 | 255 | + sync + jump (all 2 dwords) */ |
3203f94a DS |
256 | dwords = (3 * ov->nclips + 2) * |
257 | ((skip_even || skip_odd) ? (ov->w.height+1)>>1 : ov->w.height); | |
258 | dwords += 4; | |
259 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,dwords*4)) < 0) { | |
1da177e4 LT |
260 | kfree(skips); |
261 | return rc; | |
262 | } | |
263 | ||
264 | /* sync instruction */ | |
265 | rp = risc->cpu; | |
266 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); | |
267 | *(rp++) = cpu_to_le32(0); | |
268 | ||
269 | addr = (unsigned long)btv->fbuf.base; | |
270 | addr += btv->fbuf.fmt.bytesperline * ov->w.top; | |
271 | addr += (fmt->depth >> 3) * ov->w.left; | |
272 | ||
273 | /* scan lines */ | |
274 | for (maxy = -1, line = 0; line < ov->w.height; | |
275 | line++, addr += btv->fbuf.fmt.bytesperline) { | |
276 | if ((btv->opt_vcr_hack) && | |
277 | (line >= (ov->w.height - VCR_HACK_LINES))) | |
278 | continue; | |
279 | if ((line%2) == 0 && skip_even) | |
280 | continue; | |
281 | if ((line%2) == 1 && skip_odd) | |
282 | continue; | |
283 | ||
284 | /* calculate clipping */ | |
285 | if (line > maxy) | |
286 | btcx_calc_skips(line, ov->w.width, &maxy, | |
287 | skips, &nskips, ov->clips, ov->nclips); | |
288 | ||
289 | /* write out risc code */ | |
290 | for (start = 0, skip = 0; start < ov->w.width; start = end) { | |
291 | if (skip >= nskips) { | |
292 | ri = BT848_RISC_WRITE; | |
293 | end = ov->w.width; | |
294 | } else if (start < skips[skip].start) { | |
295 | ri = BT848_RISC_WRITE; | |
296 | end = skips[skip].start; | |
297 | } else { | |
298 | ri = BT848_RISC_SKIP; | |
299 | end = skips[skip].end; | |
300 | skip++; | |
301 | } | |
302 | if (BT848_RISC_WRITE == ri) | |
303 | ra = addr + (fmt->depth>>3)*start; | |
304 | else | |
305 | ra = 0; | |
306 | ||
307 | if (0 == start) | |
308 | ri |= BT848_RISC_SOL; | |
309 | if (ov->w.width == end) | |
310 | ri |= BT848_RISC_EOL; | |
311 | ri |= (fmt->depth>>3) * (end-start); | |
312 | ||
313 | *(rp++)=cpu_to_le32(ri); | |
314 | if (0 != ra) | |
315 | *(rp++)=cpu_to_le32(ra); | |
316 | } | |
317 | } | |
318 | ||
319 | /* save pointer to jmp instruction address */ | |
320 | risc->jmp = rp; | |
4a287cfe | 321 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
322 | kfree(skips); |
323 | return 0; | |
324 | } | |
325 | ||
326 | /* ---------------------------------------------------------- */ | |
327 | ||
328 | static void | |
e5bd0260 MS |
329 | bttv_calc_geo_old(struct bttv *btv, struct bttv_geometry *geo, |
330 | int width, int height, int interleaved, | |
331 | const struct bttv_tvnorm *tvnorm) | |
1da177e4 | 332 | { |
4ac97914 | 333 | u32 xsf, sr; |
1da177e4 LT |
334 | int vdelay; |
335 | ||
336 | int swidth = tvnorm->swidth; | |
337 | int totalwidth = tvnorm->totalwidth; | |
338 | int scaledtwidth = tvnorm->scaledtwidth; | |
339 | ||
340 | if (bttv_tvcards[btv->c.type].muxsel[btv->input] < 0) { | |
341 | swidth = 720; | |
342 | totalwidth = 858; | |
343 | scaledtwidth = 858; | |
344 | } | |
345 | ||
346 | vdelay = tvnorm->vdelay; | |
1da177e4 | 347 | |
4ac97914 MCC |
348 | xsf = (width*scaledtwidth)/swidth; |
349 | geo->hscale = ((totalwidth*4096UL)/xsf-4096); | |
350 | geo->hdelay = tvnorm->hdelayx1; | |
351 | geo->hdelay = (geo->hdelay*width)/swidth; | |
352 | geo->hdelay &= 0x3fe; | |
353 | sr = ((tvnorm->sheight >> (interleaved?0:1))*512)/height - 512; | |
354 | geo->vscale = (0x10000UL-sr) & 0x1fff; | |
355 | geo->crop = ((width>>8)&0x03) | ((geo->hdelay>>6)&0x0c) | | |
356 | ((tvnorm->sheight>>4)&0x30) | ((vdelay>>2)&0xc0); | |
357 | geo->vscale |= interleaved ? (BT848_VSCALE_INT<<8) : 0; | |
358 | geo->vdelay = vdelay; | |
359 | geo->width = width; | |
360 | geo->sheight = tvnorm->sheight; | |
1da177e4 LT |
361 | geo->vtotal = tvnorm->vtotal; |
362 | ||
4ac97914 MCC |
363 | if (btv->opt_combfilter) { |
364 | geo->vtc = (width < 193) ? 2 : ((width < 385) ? 1 : 0); | |
365 | geo->comb = (width < 769) ? 1 : 0; | |
366 | } else { | |
367 | geo->vtc = 0; | |
368 | geo->comb = 0; | |
369 | } | |
1da177e4 LT |
370 | } |
371 | ||
e5bd0260 MS |
372 | static void |
373 | bttv_calc_geo (struct bttv * btv, | |
374 | struct bttv_geometry * geo, | |
375 | unsigned int width, | |
376 | unsigned int height, | |
377 | int both_fields, | |
378 | const struct bttv_tvnorm * tvnorm, | |
379 | const struct v4l2_rect * crop) | |
380 | { | |
381 | unsigned int c_width; | |
382 | unsigned int c_height; | |
383 | u32 sr; | |
384 | ||
385 | if ((crop->left == tvnorm->cropcap.defrect.left | |
386 | && crop->top == tvnorm->cropcap.defrect.top | |
387 | && crop->width == tvnorm->cropcap.defrect.width | |
388 | && crop->height == tvnorm->cropcap.defrect.height | |
389 | && width <= tvnorm->swidth /* see PAL-Nc et al */) | |
390 | || bttv_tvcards[btv->c.type].muxsel[btv->input] < 0) { | |
391 | bttv_calc_geo_old(btv, geo, width, height, | |
392 | both_fields, tvnorm); | |
393 | return; | |
394 | } | |
395 | ||
396 | /* For bug compatibility the image size checks permit scale | |
397 | factors > 16. See bttv_crop_calc_limits(). */ | |
398 | c_width = min((unsigned int) crop->width, width * 16); | |
399 | c_height = min((unsigned int) crop->height, height * 16); | |
400 | ||
401 | geo->width = width; | |
402 | geo->hscale = (c_width * 4096U + (width >> 1)) / width - 4096; | |
403 | /* Even to store Cb first, odd for Cr. */ | |
404 | geo->hdelay = ((crop->left * width + c_width) / c_width) & ~1; | |
405 | ||
406 | geo->sheight = c_height; | |
407 | geo->vdelay = crop->top - tvnorm->cropcap.bounds.top + MIN_VDELAY; | |
408 | sr = c_height >> !both_fields; | |
409 | sr = (sr * 512U + (height >> 1)) / height - 512; | |
410 | geo->vscale = (0x10000UL - sr) & 0x1fff; | |
411 | geo->vscale |= both_fields ? (BT848_VSCALE_INT << 8) : 0; | |
412 | geo->vtotal = tvnorm->vtotal; | |
413 | ||
414 | geo->crop = (((geo->width >> 8) & 0x03) | | |
415 | ((geo->hdelay >> 6) & 0x0c) | | |
416 | ((geo->sheight >> 4) & 0x30) | | |
417 | ((geo->vdelay >> 2) & 0xc0)); | |
418 | ||
419 | if (btv->opt_combfilter) { | |
420 | geo->vtc = (width < 193) ? 2 : ((width < 385) ? 1 : 0); | |
421 | geo->comb = (width < 769) ? 1 : 0; | |
422 | } else { | |
423 | geo->vtc = 0; | |
424 | geo->comb = 0; | |
425 | } | |
426 | } | |
427 | ||
1da177e4 LT |
428 | static void |
429 | bttv_apply_geo(struct bttv *btv, struct bttv_geometry *geo, int odd) | |
430 | { | |
4ac97914 | 431 | int off = odd ? 0x80 : 0x00; |
1da177e4 LT |
432 | |
433 | if (geo->comb) | |
434 | btor(BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off); | |
435 | else | |
436 | btand(~BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off); | |
437 | ||
4ac97914 MCC |
438 | btwrite(geo->vtc, BT848_E_VTC+off); |
439 | btwrite(geo->hscale >> 8, BT848_E_HSCALE_HI+off); | |
440 | btwrite(geo->hscale & 0xff, BT848_E_HSCALE_LO+off); | |
441 | btaor((geo->vscale>>8), 0xe0, BT848_E_VSCALE_HI+off); | |
442 | btwrite(geo->vscale & 0xff, BT848_E_VSCALE_LO+off); | |
443 | btwrite(geo->width & 0xff, BT848_E_HACTIVE_LO+off); | |
444 | btwrite(geo->hdelay & 0xff, BT848_E_HDELAY_LO+off); | |
445 | btwrite(geo->sheight & 0xff, BT848_E_VACTIVE_LO+off); | |
446 | btwrite(geo->vdelay & 0xff, BT848_E_VDELAY_LO+off); | |
447 | btwrite(geo->crop, BT848_E_CROP+off); | |
1da177e4 | 448 | btwrite(geo->vtotal>>8, BT848_VTOTAL_HI); |
4ac97914 | 449 | btwrite(geo->vtotal & 0xff, BT848_VTOTAL_LO); |
1da177e4 LT |
450 | } |
451 | ||
452 | /* ---------------------------------------------------------- */ | |
453 | /* risc group / risc main loop / dma management */ | |
454 | ||
455 | void | |
456 | bttv_set_dma(struct bttv *btv, int override) | |
457 | { | |
458 | unsigned long cmd; | |
459 | int capctl; | |
460 | ||
461 | btv->cap_ctl = 0; | |
462 | if (NULL != btv->curr.top) btv->cap_ctl |= 0x02; | |
463 | if (NULL != btv->curr.bottom) btv->cap_ctl |= 0x01; | |
464 | if (NULL != btv->cvbi) btv->cap_ctl |= 0x0c; | |
465 | ||
466 | capctl = 0; | |
467 | capctl |= (btv->cap_ctl & 0x03) ? 0x03 : 0x00; /* capture */ | |
468 | capctl |= (btv->cap_ctl & 0x0c) ? 0x0c : 0x00; /* vbi data */ | |
469 | capctl |= override; | |
470 | ||
471 | d2printk(KERN_DEBUG | |
472 | "bttv%d: capctl=%x lirq=%d top=%08Lx/%08Lx even=%08Lx/%08Lx\n", | |
473 | btv->c.nr,capctl,btv->loop_irq, | |
474 | btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, | |
475 | btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0, | |
476 | btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0, | |
477 | btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); | |
478 | ||
479 | cmd = BT848_RISC_JUMP; | |
480 | if (btv->loop_irq) { | |
481 | cmd |= BT848_RISC_IRQ; | |
482 | cmd |= (btv->loop_irq & 0x0f) << 16; | |
483 | cmd |= (~btv->loop_irq & 0x0f) << 20; | |
484 | } | |
485 | if (btv->curr.frame_irq || btv->loop_irq || btv->cvbi) { | |
486 | mod_timer(&btv->timeout, jiffies+BTTV_TIMEOUT); | |
487 | } else { | |
488 | del_timer(&btv->timeout); | |
489 | } | |
4ac97914 | 490 | btv->main.cpu[RISC_SLOT_LOOP] = cpu_to_le32(cmd); |
1da177e4 LT |
491 | |
492 | btaor(capctl, ~0x0f, BT848_CAP_CTL); | |
493 | if (capctl) { | |
494 | if (btv->dma_on) | |
495 | return; | |
496 | btwrite(btv->main.dma, BT848_RISC_STRT_ADD); | |
497 | btor(3, BT848_GPIO_DMA_CTL); | |
498 | btv->dma_on = 1; | |
499 | } else { | |
500 | if (!btv->dma_on) | |
501 | return; | |
4ac97914 | 502 | btand(~3, BT848_GPIO_DMA_CTL); |
1da177e4 LT |
503 | btv->dma_on = 0; |
504 | } | |
505 | return; | |
506 | } | |
507 | ||
508 | int | |
509 | bttv_risc_init_main(struct bttv *btv) | |
510 | { | |
511 | int rc; | |
512 | ||
513 | if ((rc = btcx_riscmem_alloc(btv->c.pci,&btv->main,PAGE_SIZE)) < 0) | |
514 | return rc; | |
515 | dprintk(KERN_DEBUG "bttv%d: risc main @ %08Lx\n", | |
516 | btv->c.nr,(unsigned long long)btv->main.dma); | |
517 | ||
518 | btv->main.cpu[0] = cpu_to_le32(BT848_RISC_SYNC | BT848_RISC_RESYNC | | |
519 | BT848_FIFO_STATUS_VRE); | |
520 | btv->main.cpu[1] = cpu_to_le32(0); | |
521 | btv->main.cpu[2] = cpu_to_le32(BT848_RISC_JUMP); | |
522 | btv->main.cpu[3] = cpu_to_le32(btv->main.dma + (4<<2)); | |
523 | ||
524 | /* top field */ | |
525 | btv->main.cpu[4] = cpu_to_le32(BT848_RISC_JUMP); | |
526 | btv->main.cpu[5] = cpu_to_le32(btv->main.dma + (6<<2)); | |
527 | btv->main.cpu[6] = cpu_to_le32(BT848_RISC_JUMP); | |
528 | btv->main.cpu[7] = cpu_to_le32(btv->main.dma + (8<<2)); | |
529 | ||
4ac97914 | 530 | btv->main.cpu[8] = cpu_to_le32(BT848_RISC_SYNC | BT848_RISC_RESYNC | |
1da177e4 | 531 | BT848_FIFO_STATUS_VRO); |
4ac97914 | 532 | btv->main.cpu[9] = cpu_to_le32(0); |
1da177e4 LT |
533 | |
534 | /* bottom field */ | |
4ac97914 | 535 | btv->main.cpu[10] = cpu_to_le32(BT848_RISC_JUMP); |
1da177e4 | 536 | btv->main.cpu[11] = cpu_to_le32(btv->main.dma + (12<<2)); |
4ac97914 | 537 | btv->main.cpu[12] = cpu_to_le32(BT848_RISC_JUMP); |
1da177e4 LT |
538 | btv->main.cpu[13] = cpu_to_le32(btv->main.dma + (14<<2)); |
539 | ||
540 | /* jump back to top field */ | |
541 | btv->main.cpu[14] = cpu_to_le32(BT848_RISC_JUMP); | |
4ac97914 | 542 | btv->main.cpu[15] = cpu_to_le32(btv->main.dma + (0<<2)); |
1da177e4 LT |
543 | |
544 | return 0; | |
545 | } | |
546 | ||
547 | int | |
548 | bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc, | |
549 | int irqflags) | |
550 | { | |
551 | unsigned long cmd; | |
552 | unsigned long next = btv->main.dma + ((slot+2) << 2); | |
553 | ||
554 | if (NULL == risc) { | |
555 | d2printk(KERN_DEBUG "bttv%d: risc=%p slot[%d]=NULL\n", | |
556 | btv->c.nr,risc,slot); | |
557 | btv->main.cpu[slot+1] = cpu_to_le32(next); | |
558 | } else { | |
559 | d2printk(KERN_DEBUG "bttv%d: risc=%p slot[%d]=%08Lx irq=%d\n", | |
560 | btv->c.nr,risc,slot,(unsigned long long)risc->dma,irqflags); | |
561 | cmd = BT848_RISC_JUMP; | |
562 | if (irqflags) { | |
563 | cmd |= BT848_RISC_IRQ; | |
564 | cmd |= (irqflags & 0x0f) << 16; | |
565 | cmd |= (~irqflags & 0x0f) << 20; | |
566 | } | |
567 | risc->jmp[0] = cpu_to_le32(cmd); | |
568 | risc->jmp[1] = cpu_to_le32(next); | |
569 | btv->main.cpu[slot+1] = cpu_to_le32(risc->dma); | |
570 | } | |
571 | return 0; | |
572 | } | |
573 | ||
574 | void | |
c7b0ac05 | 575 | bttv_dma_free(struct videobuf_queue *q,struct bttv *btv, struct bttv_buffer *buf) |
1da177e4 | 576 | { |
c1accaa2 MCC |
577 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
578 | ||
ae24601b | 579 | BUG_ON(in_interrupt()); |
1da177e4 | 580 | videobuf_waiton(&buf->vb,0,0); |
c1accaa2 MCC |
581 | videobuf_dma_unmap(q, dma); |
582 | videobuf_dma_free(dma); | |
1da177e4 LT |
583 | btcx_riscmem_free(btv->c.pci,&buf->bottom); |
584 | btcx_riscmem_free(btv->c.pci,&buf->top); | |
585 | buf->vb.state = STATE_NEEDS_INIT; | |
586 | } | |
587 | ||
588 | int | |
589 | bttv_buffer_activate_vbi(struct bttv *btv, | |
590 | struct bttv_buffer *vbi) | |
591 | { | |
e5bd0260 MS |
592 | struct btcx_riscmem *top; |
593 | struct btcx_riscmem *bottom; | |
594 | int top_irq_flags; | |
595 | int bottom_irq_flags; | |
596 | ||
597 | top = NULL; | |
598 | bottom = NULL; | |
599 | top_irq_flags = 0; | |
600 | bottom_irq_flags = 0; | |
601 | ||
1da177e4 | 602 | if (vbi) { |
e5bd0260 MS |
603 | unsigned int crop, vdelay; |
604 | ||
1da177e4 LT |
605 | vbi->vb.state = STATE_ACTIVE; |
606 | list_del(&vbi->vb.queue); | |
e5bd0260 MS |
607 | |
608 | /* VDELAY is start of video, end of VBI capturing. */ | |
609 | crop = btread(BT848_E_CROP); | |
610 | vdelay = btread(BT848_E_VDELAY_LO) + ((crop & 0xc0) << 2); | |
611 | ||
612 | if (vbi->geo.vdelay > vdelay) { | |
613 | vdelay = vbi->geo.vdelay & 0xfe; | |
614 | crop = (crop & 0x3f) | ((vbi->geo.vdelay >> 2) & 0xc0); | |
615 | ||
616 | btwrite(vdelay, BT848_E_VDELAY_LO); | |
617 | btwrite(crop, BT848_E_CROP); | |
618 | btwrite(vdelay, BT848_O_VDELAY_LO); | |
619 | btwrite(crop, BT848_O_CROP); | |
620 | } | |
621 | ||
622 | if (vbi->vbi_count[0] > 0) { | |
623 | top = &vbi->top; | |
624 | top_irq_flags = 4; | |
625 | } | |
626 | ||
627 | if (vbi->vbi_count[1] > 0) { | |
628 | top_irq_flags = 0; | |
629 | bottom = &vbi->bottom; | |
630 | bottom_irq_flags = 4; | |
631 | } | |
1da177e4 | 632 | } |
e5bd0260 MS |
633 | |
634 | bttv_risc_hook(btv, RISC_SLOT_O_VBI, top, top_irq_flags); | |
635 | bttv_risc_hook(btv, RISC_SLOT_E_VBI, bottom, bottom_irq_flags); | |
636 | ||
1da177e4 LT |
637 | return 0; |
638 | } | |
639 | ||
640 | int | |
641 | bttv_buffer_activate_video(struct bttv *btv, | |
642 | struct bttv_buffer_set *set) | |
643 | { | |
644 | /* video capture */ | |
645 | if (NULL != set->top && NULL != set->bottom) { | |
646 | if (set->top == set->bottom) { | |
647 | set->top->vb.state = STATE_ACTIVE; | |
648 | if (set->top->vb.queue.next) | |
649 | list_del(&set->top->vb.queue); | |
650 | } else { | |
651 | set->top->vb.state = STATE_ACTIVE; | |
652 | set->bottom->vb.state = STATE_ACTIVE; | |
653 | if (set->top->vb.queue.next) | |
654 | list_del(&set->top->vb.queue); | |
655 | if (set->bottom->vb.queue.next) | |
656 | list_del(&set->bottom->vb.queue); | |
657 | } | |
658 | bttv_apply_geo(btv, &set->top->geo, 1); | |
659 | bttv_apply_geo(btv, &set->bottom->geo,0); | |
660 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, &set->top->top, | |
661 | set->top_irq); | |
662 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, &set->bottom->bottom, | |
663 | set->frame_irq); | |
664 | btaor((set->top->btformat & 0xf0) | (set->bottom->btformat & 0x0f), | |
665 | ~0xff, BT848_COLOR_FMT); | |
666 | btaor((set->top->btswap & 0x0a) | (set->bottom->btswap & 0x05), | |
667 | ~0x0f, BT848_COLOR_CTL); | |
668 | } else if (NULL != set->top) { | |
669 | set->top->vb.state = STATE_ACTIVE; | |
670 | if (set->top->vb.queue.next) | |
671 | list_del(&set->top->vb.queue); | |
672 | bttv_apply_geo(btv, &set->top->geo,1); | |
673 | bttv_apply_geo(btv, &set->top->geo,0); | |
674 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, &set->top->top, | |
675 | set->frame_irq); | |
676 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, NULL, 0); | |
677 | btaor(set->top->btformat & 0xff, ~0xff, BT848_COLOR_FMT); | |
678 | btaor(set->top->btswap & 0x0f, ~0x0f, BT848_COLOR_CTL); | |
679 | } else if (NULL != set->bottom) { | |
680 | set->bottom->vb.state = STATE_ACTIVE; | |
681 | if (set->bottom->vb.queue.next) | |
682 | list_del(&set->bottom->vb.queue); | |
683 | bttv_apply_geo(btv, &set->bottom->geo,1); | |
684 | bttv_apply_geo(btv, &set->bottom->geo,0); | |
685 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); | |
686 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, &set->bottom->bottom, | |
687 | set->frame_irq); | |
688 | btaor(set->bottom->btformat & 0xff, ~0xff, BT848_COLOR_FMT); | |
689 | btaor(set->bottom->btswap & 0x0f, ~0x0f, BT848_COLOR_CTL); | |
690 | } else { | |
691 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); | |
692 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, NULL, 0); | |
693 | } | |
694 | return 0; | |
695 | } | |
696 | ||
697 | /* ---------------------------------------------------------- */ | |
698 | ||
699 | /* calculate geometry, build risc code */ | |
700 | int | |
701 | bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf) | |
702 | { | |
703 | const struct bttv_tvnorm *tvnorm = bttv_tvnorms + buf->tvnorm; | |
c1accaa2 | 704 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
1da177e4 LT |
705 | |
706 | dprintk(KERN_DEBUG | |
707 | "bttv%d: buffer field: %s format: %s size: %dx%d\n", | |
708 | btv->c.nr, v4l2_field_names[buf->vb.field], | |
709 | buf->fmt->name, buf->vb.width, buf->vb.height); | |
710 | ||
711 | /* packed pixel modes */ | |
712 | if (buf->fmt->flags & FORMAT_FLAGS_PACKED) { | |
713 | int bpl = (buf->fmt->depth >> 3) * buf->vb.width; | |
714 | int bpf = bpl * (buf->vb.height >> 1); | |
715 | ||
716 | bttv_calc_geo(btv,&buf->geo,buf->vb.width,buf->vb.height, | |
e5bd0260 MS |
717 | V4L2_FIELD_HAS_BOTH(buf->vb.field), |
718 | tvnorm,&buf->crop); | |
1da177e4 LT |
719 | |
720 | switch (buf->vb.field) { | |
721 | case V4L2_FIELD_TOP: | |
c1accaa2 | 722 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 MS |
723 | /* offset */ 0,bpl, |
724 | /* padding */ 0,/* skip_lines */ 0, | |
725 | buf->vb.height); | |
1da177e4 LT |
726 | break; |
727 | case V4L2_FIELD_BOTTOM: | |
c1accaa2 | 728 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 729 | 0,bpl,0,0,buf->vb.height); |
1da177e4 LT |
730 | break; |
731 | case V4L2_FIELD_INTERLACED: | |
c1accaa2 | 732 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 | 733 | 0,bpl,bpl,0,buf->vb.height >> 1); |
c1accaa2 | 734 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 735 | bpl,bpl,bpl,0,buf->vb.height >> 1); |
1da177e4 LT |
736 | break; |
737 | case V4L2_FIELD_SEQ_TB: | |
c1accaa2 | 738 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 | 739 | 0,bpl,0,0,buf->vb.height >> 1); |
c1accaa2 | 740 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 741 | bpf,bpl,0,0,buf->vb.height >> 1); |
1da177e4 LT |
742 | break; |
743 | default: | |
744 | BUG(); | |
745 | } | |
746 | } | |
747 | ||
748 | /* planar modes */ | |
749 | if (buf->fmt->flags & FORMAT_FLAGS_PLANAR) { | |
750 | int uoffset, voffset; | |
751 | int ypadding, cpadding, lines; | |
752 | ||
753 | /* calculate chroma offsets */ | |
754 | uoffset = buf->vb.width * buf->vb.height; | |
755 | voffset = buf->vb.width * buf->vb.height; | |
756 | if (buf->fmt->flags & FORMAT_FLAGS_CrCb) { | |
757 | /* Y-Cr-Cb plane order */ | |
758 | uoffset >>= buf->fmt->hshift; | |
759 | uoffset >>= buf->fmt->vshift; | |
760 | uoffset += voffset; | |
761 | } else { | |
762 | /* Y-Cb-Cr plane order */ | |
763 | voffset >>= buf->fmt->hshift; | |
764 | voffset >>= buf->fmt->vshift; | |
765 | voffset += uoffset; | |
766 | } | |
767 | ||
768 | switch (buf->vb.field) { | |
769 | case V4L2_FIELD_TOP: | |
770 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
771 | buf->vb.height,/* both_fields */ 0, |
772 | tvnorm,&buf->crop); | |
c1accaa2 | 773 | bttv_risc_planar(btv, &buf->top, dma->sglist, |
1da177e4 LT |
774 | 0,buf->vb.width,0,buf->vb.height, |
775 | uoffset,voffset,buf->fmt->hshift, | |
776 | buf->fmt->vshift,0); | |
777 | break; | |
778 | case V4L2_FIELD_BOTTOM: | |
779 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
780 | buf->vb.height,0, |
781 | tvnorm,&buf->crop); | |
c1accaa2 | 782 | bttv_risc_planar(btv, &buf->bottom, dma->sglist, |
1da177e4 LT |
783 | 0,buf->vb.width,0,buf->vb.height, |
784 | uoffset,voffset,buf->fmt->hshift, | |
785 | buf->fmt->vshift,0); | |
786 | break; | |
787 | case V4L2_FIELD_INTERLACED: | |
788 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
789 | buf->vb.height,1, |
790 | tvnorm,&buf->crop); | |
1da177e4 LT |
791 | lines = buf->vb.height >> 1; |
792 | ypadding = buf->vb.width; | |
793 | cpadding = buf->vb.width >> buf->fmt->hshift; | |
794 | bttv_risc_planar(btv,&buf->top, | |
c1accaa2 | 795 | dma->sglist, |
1da177e4 LT |
796 | 0,buf->vb.width,ypadding,lines, |
797 | uoffset,voffset, | |
798 | buf->fmt->hshift, | |
799 | buf->fmt->vshift, | |
800 | cpadding); | |
801 | bttv_risc_planar(btv,&buf->bottom, | |
c1accaa2 | 802 | dma->sglist, |
1da177e4 LT |
803 | ypadding,buf->vb.width,ypadding,lines, |
804 | uoffset+cpadding, | |
805 | voffset+cpadding, | |
806 | buf->fmt->hshift, | |
807 | buf->fmt->vshift, | |
808 | cpadding); | |
809 | break; | |
810 | case V4L2_FIELD_SEQ_TB: | |
811 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
812 | buf->vb.height,1, |
813 | tvnorm,&buf->crop); | |
1da177e4 LT |
814 | lines = buf->vb.height >> 1; |
815 | ypadding = buf->vb.width; | |
816 | cpadding = buf->vb.width >> buf->fmt->hshift; | |
817 | bttv_risc_planar(btv,&buf->top, | |
c1accaa2 | 818 | dma->sglist, |
1da177e4 LT |
819 | 0,buf->vb.width,0,lines, |
820 | uoffset >> 1, | |
821 | voffset >> 1, | |
822 | buf->fmt->hshift, | |
823 | buf->fmt->vshift, | |
824 | 0); | |
825 | bttv_risc_planar(btv,&buf->bottom, | |
c1accaa2 | 826 | dma->sglist, |
1da177e4 LT |
827 | lines * ypadding,buf->vb.width,0,lines, |
828 | lines * ypadding + (uoffset >> 1), | |
829 | lines * ypadding + (voffset >> 1), | |
830 | buf->fmt->hshift, | |
831 | buf->fmt->vshift, | |
832 | 0); | |
833 | break; | |
834 | default: | |
835 | BUG(); | |
836 | } | |
837 | } | |
838 | ||
839 | /* raw data */ | |
840 | if (buf->fmt->flags & FORMAT_FLAGS_RAW) { | |
841 | /* build risc code */ | |
842 | buf->vb.field = V4L2_FIELD_SEQ_TB; | |
843 | bttv_calc_geo(btv,&buf->geo,tvnorm->swidth,tvnorm->sheight, | |
e5bd0260 | 844 | 1,tvnorm,&buf->crop); |
c1accaa2 | 845 | bttv_risc_packed(btv, &buf->top, dma->sglist, |
e5bd0260 MS |
846 | /* offset */ 0, RAW_BPL, /* padding */ 0, |
847 | /* skip_lines */ 0, RAW_LINES); | |
c1accaa2 | 848 | bttv_risc_packed(btv, &buf->bottom, dma->sglist, |
e5bd0260 | 849 | buf->vb.size/2 , RAW_BPL, 0, 0, RAW_LINES); |
1da177e4 LT |
850 | } |
851 | ||
852 | /* copy format info */ | |
853 | buf->btformat = buf->fmt->btformat; | |
854 | buf->btswap = buf->fmt->btswap; | |
855 | return 0; | |
856 | } | |
857 | ||
858 | /* ---------------------------------------------------------- */ | |
859 | ||
860 | /* calculate geometry, build risc code */ | |
861 | int | |
862 | bttv_overlay_risc(struct bttv *btv, | |
863 | struct bttv_overlay *ov, | |
864 | const struct bttv_format *fmt, | |
865 | struct bttv_buffer *buf) | |
866 | { | |
867 | /* check interleave, bottom+top fields */ | |
868 | dprintk(KERN_DEBUG | |
869 | "bttv%d: overlay fields: %s format: %s size: %dx%d\n", | |
870 | btv->c.nr, v4l2_field_names[buf->vb.field], | |
871 | fmt->name,ov->w.width,ov->w.height); | |
872 | ||
873 | /* calculate geometry */ | |
874 | bttv_calc_geo(btv,&buf->geo,ov->w.width,ov->w.height, | |
e5bd0260 MS |
875 | V4L2_FIELD_HAS_BOTH(ov->field), |
876 | &bttv_tvnorms[ov->tvnorm],&buf->crop); | |
1da177e4 LT |
877 | |
878 | /* build risc code */ | |
879 | switch (ov->field) { | |
880 | case V4L2_FIELD_TOP: | |
881 | bttv_risc_overlay(btv, &buf->top, fmt, ov, 0, 0); | |
882 | break; | |
883 | case V4L2_FIELD_BOTTOM: | |
884 | bttv_risc_overlay(btv, &buf->bottom, fmt, ov, 0, 0); | |
885 | break; | |
886 | case V4L2_FIELD_INTERLACED: | |
1da177e4 LT |
887 | bttv_risc_overlay(btv, &buf->top, fmt, ov, 0, 1); |
888 | bttv_risc_overlay(btv, &buf->bottom, fmt, ov, 1, 0); | |
1da177e4 LT |
889 | break; |
890 | default: | |
891 | BUG(); | |
892 | } | |
893 | ||
894 | /* copy format info */ | |
895 | buf->btformat = fmt->btformat; | |
896 | buf->btswap = fmt->btswap; | |
897 | buf->vb.field = ov->field; | |
898 | return 0; | |
899 | } | |
900 | ||
901 | /* | |
902 | * Local variables: | |
903 | * c-basic-offset: 8 | |
904 | * End: | |
905 | */ |