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 | ||
8af443e5 JP |
27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
28 | ||
1da177e4 LT |
29 | #include <linux/module.h> |
30 | #include <linux/init.h> | |
5a0e3ad6 | 31 | #include <linux/slab.h> |
1da177e4 LT |
32 | #include <linux/pci.h> |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/interrupt.h> | |
35 | #include <asm/page.h> | |
36 | #include <asm/pgtable.h> | |
35ea11ff | 37 | #include <media/v4l2-ioctl.h> |
1da177e4 LT |
38 | |
39 | #include "bttvp.h" | |
40 | ||
41 | #define VCR_HACK_LINES 4 | |
42 | ||
43 | /* ---------------------------------------------------------- */ | |
44 | /* risc code generators */ | |
45 | ||
46 | int | |
47 | bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc, | |
48 | struct scatterlist *sglist, | |
49 | unsigned int offset, unsigned int bpl, | |
e5bd0260 MS |
50 | unsigned int padding, unsigned int skip_lines, |
51 | unsigned int store_lines) | |
1da177e4 LT |
52 | { |
53 | u32 instructions,line,todo; | |
54 | struct scatterlist *sg; | |
d8eaa58b | 55 | __le32 *rp; |
1da177e4 LT |
56 | int rc; |
57 | ||
58 | /* estimate risc mem: worst case is one write per page border + | |
4a287cfe DS |
59 | one write per scan line + sync + jump (all 2 dwords). padding |
60 | can cause next bpl to start close to a page border. First DMA | |
61 | region may be smaller than PAGE_SIZE */ | |
e5bd0260 MS |
62 | instructions = skip_lines * 4; |
63 | instructions += (1 + ((bpl + padding) * store_lines) | |
64 | / PAGE_SIZE + store_lines) * 8; | |
65 | instructions += 2 * 8; | |
66 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions)) < 0) | |
1da177e4 LT |
67 | return rc; |
68 | ||
69 | /* sync instruction */ | |
70 | rp = risc->cpu; | |
71 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); | |
72 | *(rp++) = cpu_to_le32(0); | |
73 | ||
e5bd0260 MS |
74 | while (skip_lines-- > 0) { |
75 | *(rp++) = cpu_to_le32(BT848_RISC_SKIP | BT848_RISC_SOL | | |
76 | BT848_RISC_EOL | bpl); | |
77 | } | |
78 | ||
1da177e4 LT |
79 | /* scan lines */ |
80 | sg = sglist; | |
e5bd0260 | 81 | for (line = 0; line < store_lines; line++) { |
1da177e4 | 82 | if ((btv->opt_vcr_hack) && |
e5bd0260 | 83 | (line >= (store_lines - VCR_HACK_LINES))) |
1da177e4 LT |
84 | continue; |
85 | while (offset && offset >= sg_dma_len(sg)) { | |
86 | offset -= sg_dma_len(sg); | |
872dfcfe | 87 | sg = sg_next(sg); |
1da177e4 LT |
88 | } |
89 | if (bpl <= sg_dma_len(sg)-offset) { | |
90 | /* fits into current chunk */ | |
4ac97914 | 91 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL| |
1da177e4 | 92 | BT848_RISC_EOL|bpl); |
4ac97914 MCC |
93 | *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset); |
94 | offset+=bpl; | |
1da177e4 LT |
95 | } else { |
96 | /* scanline needs to be splitted */ | |
4ac97914 MCC |
97 | todo = bpl; |
98 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_SOL| | |
1da177e4 | 99 | (sg_dma_len(sg)-offset)); |
4ac97914 MCC |
100 | *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset); |
101 | todo -= (sg_dma_len(sg)-offset); | |
102 | offset = 0; | |
872dfcfe | 103 | sg = sg_next(sg); |
4ac97914 | 104 | while (todo > sg_dma_len(sg)) { |
f2421ca3 | 105 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE| |
1da177e4 | 106 | sg_dma_len(sg)); |
f2421ca3 | 107 | *(rp++)=cpu_to_le32(sg_dma_address(sg)); |
1da177e4 | 108 | todo -= sg_dma_len(sg); |
872dfcfe | 109 | sg = sg_next(sg); |
1da177e4 | 110 | } |
4ac97914 | 111 | *(rp++)=cpu_to_le32(BT848_RISC_WRITE|BT848_RISC_EOL| |
1da177e4 LT |
112 | todo); |
113 | *(rp++)=cpu_to_le32(sg_dma_address(sg)); | |
114 | offset += todo; | |
115 | } | |
116 | offset += padding; | |
117 | } | |
118 | ||
119 | /* save pointer to jmp instruction address */ | |
120 | risc->jmp = rp; | |
4a287cfe | 121 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
122 | return 0; |
123 | } | |
124 | ||
125 | static int | |
126 | bttv_risc_planar(struct bttv *btv, struct btcx_riscmem *risc, | |
127 | struct scatterlist *sglist, | |
128 | unsigned int yoffset, unsigned int ybpl, | |
129 | unsigned int ypadding, unsigned int ylines, | |
130 | unsigned int uoffset, unsigned int voffset, | |
131 | unsigned int hshift, unsigned int vshift, | |
132 | unsigned int cpadding) | |
133 | { | |
134 | unsigned int instructions,line,todo,ylen,chroma; | |
d8eaa58b AV |
135 | __le32 *rp; |
136 | u32 ri; | |
1da177e4 LT |
137 | struct scatterlist *ysg; |
138 | struct scatterlist *usg; | |
139 | struct scatterlist *vsg; | |
140 | int topfield = (0 == yoffset); | |
141 | int rc; | |
142 | ||
143 | /* estimate risc mem: worst case is one write per page border + | |
144 | one write per scan line (5 dwords) | |
145 | plus sync + jump (2 dwords) */ | |
e5bd0260 MS |
146 | instructions = ((3 + (ybpl + ypadding) * ylines * 2) |
147 | / PAGE_SIZE) + ylines; | |
1da177e4 LT |
148 | instructions += 2; |
149 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions*4*5)) < 0) | |
150 | return rc; | |
151 | ||
152 | /* sync instruction */ | |
153 | rp = risc->cpu; | |
154 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM3); | |
155 | *(rp++) = cpu_to_le32(0); | |
156 | ||
157 | /* scan lines */ | |
158 | ysg = sglist; | |
159 | usg = sglist; | |
160 | vsg = sglist; | |
161 | for (line = 0; line < ylines; line++) { | |
162 | if ((btv->opt_vcr_hack) && | |
163 | (line >= (ylines - VCR_HACK_LINES))) | |
164 | continue; | |
165 | switch (vshift) { | |
166 | case 0: | |
167 | chroma = 1; | |
168 | break; | |
169 | case 1: | |
170 | if (topfield) | |
171 | chroma = ((line & 1) == 0); | |
172 | else | |
173 | chroma = ((line & 1) == 1); | |
174 | break; | |
175 | case 2: | |
176 | if (topfield) | |
177 | chroma = ((line & 3) == 0); | |
178 | else | |
179 | chroma = ((line & 3) == 2); | |
180 | break; | |
181 | default: | |
182 | chroma = 0; | |
183 | break; | |
184 | } | |
185 | ||
186 | for (todo = ybpl; todo > 0; todo -= ylen) { | |
187 | /* go to next sg entry if needed */ | |
188 | while (yoffset && yoffset >= sg_dma_len(ysg)) { | |
189 | yoffset -= sg_dma_len(ysg); | |
872dfcfe | 190 | ysg = sg_next(ysg); |
1da177e4 LT |
191 | } |
192 | while (uoffset && uoffset >= sg_dma_len(usg)) { | |
193 | uoffset -= sg_dma_len(usg); | |
872dfcfe | 194 | usg = sg_next(usg); |
1da177e4 LT |
195 | } |
196 | while (voffset && voffset >= sg_dma_len(vsg)) { | |
197 | voffset -= sg_dma_len(vsg); | |
872dfcfe | 198 | vsg = sg_next(vsg); |
1da177e4 LT |
199 | } |
200 | ||
201 | /* calculate max number of bytes we can write */ | |
202 | ylen = todo; | |
203 | if (yoffset + ylen > sg_dma_len(ysg)) | |
204 | ylen = sg_dma_len(ysg) - yoffset; | |
205 | if (chroma) { | |
206 | if (uoffset + (ylen>>hshift) > sg_dma_len(usg)) | |
207 | ylen = (sg_dma_len(usg) - uoffset) << hshift; | |
208 | if (voffset + (ylen>>hshift) > sg_dma_len(vsg)) | |
209 | ylen = (sg_dma_len(vsg) - voffset) << hshift; | |
210 | ri = BT848_RISC_WRITE123; | |
211 | } else { | |
212 | ri = BT848_RISC_WRITE1S23; | |
213 | } | |
214 | if (ybpl == todo) | |
215 | ri |= BT848_RISC_SOL; | |
216 | if (ylen == todo) | |
217 | ri |= BT848_RISC_EOL; | |
218 | ||
219 | /* write risc instruction */ | |
4ac97914 MCC |
220 | *(rp++)=cpu_to_le32(ri | ylen); |
221 | *(rp++)=cpu_to_le32(((ylen >> hshift) << 16) | | |
1da177e4 LT |
222 | (ylen >> hshift)); |
223 | *(rp++)=cpu_to_le32(sg_dma_address(ysg)+yoffset); | |
224 | yoffset += ylen; | |
225 | if (chroma) { | |
226 | *(rp++)=cpu_to_le32(sg_dma_address(usg)+uoffset); | |
227 | uoffset += ylen >> hshift; | |
228 | *(rp++)=cpu_to_le32(sg_dma_address(vsg)+voffset); | |
229 | voffset += ylen >> hshift; | |
230 | } | |
231 | } | |
232 | yoffset += ypadding; | |
233 | if (chroma) { | |
234 | uoffset += cpadding; | |
235 | voffset += cpadding; | |
236 | } | |
237 | } | |
238 | ||
239 | /* save pointer to jmp instruction address */ | |
240 | risc->jmp = rp; | |
4a287cfe | 241 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
242 | return 0; |
243 | } | |
244 | ||
245 | static int | |
246 | bttv_risc_overlay(struct bttv *btv, struct btcx_riscmem *risc, | |
247 | const struct bttv_format *fmt, struct bttv_overlay *ov, | |
248 | int skip_even, int skip_odd) | |
249 | { | |
c6eb8eaf HV |
250 | int dwords, rc, line, maxy, start, end; |
251 | unsigned skip, nskips; | |
1da177e4 | 252 | struct btcx_skiplist *skips; |
d8eaa58b AV |
253 | __le32 *rp; |
254 | u32 ri,ra; | |
1da177e4 LT |
255 | u32 addr; |
256 | ||
257 | /* skip list for window clipping */ | |
258 | if (NULL == (skips = kmalloc(sizeof(*skips) * ov->nclips,GFP_KERNEL))) | |
259 | return -ENOMEM; | |
260 | ||
3203f94a | 261 | /* estimate risc mem: worst case is (1.5*clip+1) * lines instructions |
1da177e4 | 262 | + sync + jump (all 2 dwords) */ |
3203f94a DS |
263 | dwords = (3 * ov->nclips + 2) * |
264 | ((skip_even || skip_odd) ? (ov->w.height+1)>>1 : ov->w.height); | |
265 | dwords += 4; | |
266 | if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,dwords*4)) < 0) { | |
1da177e4 LT |
267 | kfree(skips); |
268 | return rc; | |
269 | } | |
270 | ||
271 | /* sync instruction */ | |
272 | rp = risc->cpu; | |
273 | *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); | |
274 | *(rp++) = cpu_to_le32(0); | |
275 | ||
276 | addr = (unsigned long)btv->fbuf.base; | |
277 | addr += btv->fbuf.fmt.bytesperline * ov->w.top; | |
278 | addr += (fmt->depth >> 3) * ov->w.left; | |
279 | ||
280 | /* scan lines */ | |
281 | for (maxy = -1, line = 0; line < ov->w.height; | |
282 | line++, addr += btv->fbuf.fmt.bytesperline) { | |
283 | if ((btv->opt_vcr_hack) && | |
284 | (line >= (ov->w.height - VCR_HACK_LINES))) | |
285 | continue; | |
286 | if ((line%2) == 0 && skip_even) | |
287 | continue; | |
288 | if ((line%2) == 1 && skip_odd) | |
289 | continue; | |
290 | ||
291 | /* calculate clipping */ | |
292 | if (line > maxy) | |
293 | btcx_calc_skips(line, ov->w.width, &maxy, | |
294 | skips, &nskips, ov->clips, ov->nclips); | |
295 | ||
296 | /* write out risc code */ | |
297 | for (start = 0, skip = 0; start < ov->w.width; start = end) { | |
298 | if (skip >= nskips) { | |
299 | ri = BT848_RISC_WRITE; | |
300 | end = ov->w.width; | |
301 | } else if (start < skips[skip].start) { | |
302 | ri = BT848_RISC_WRITE; | |
303 | end = skips[skip].start; | |
304 | } else { | |
305 | ri = BT848_RISC_SKIP; | |
306 | end = skips[skip].end; | |
307 | skip++; | |
308 | } | |
309 | if (BT848_RISC_WRITE == ri) | |
310 | ra = addr + (fmt->depth>>3)*start; | |
311 | else | |
312 | ra = 0; | |
313 | ||
314 | if (0 == start) | |
315 | ri |= BT848_RISC_SOL; | |
316 | if (ov->w.width == end) | |
317 | ri |= BT848_RISC_EOL; | |
318 | ri |= (fmt->depth>>3) * (end-start); | |
319 | ||
320 | *(rp++)=cpu_to_le32(ri); | |
321 | if (0 != ra) | |
322 | *(rp++)=cpu_to_le32(ra); | |
323 | } | |
324 | } | |
325 | ||
326 | /* save pointer to jmp instruction address */ | |
327 | risc->jmp = rp; | |
4a287cfe | 328 | BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); |
1da177e4 LT |
329 | kfree(skips); |
330 | return 0; | |
331 | } | |
332 | ||
333 | /* ---------------------------------------------------------- */ | |
334 | ||
335 | static void | |
e5bd0260 MS |
336 | bttv_calc_geo_old(struct bttv *btv, struct bttv_geometry *geo, |
337 | int width, int height, int interleaved, | |
338 | const struct bttv_tvnorm *tvnorm) | |
1da177e4 | 339 | { |
4ac97914 | 340 | u32 xsf, sr; |
1da177e4 LT |
341 | int vdelay; |
342 | ||
343 | int swidth = tvnorm->swidth; | |
344 | int totalwidth = tvnorm->totalwidth; | |
345 | int scaledtwidth = tvnorm->scaledtwidth; | |
346 | ||
5221e21e | 347 | if (btv->input == btv->dig) { |
1da177e4 LT |
348 | swidth = 720; |
349 | totalwidth = 858; | |
350 | scaledtwidth = 858; | |
351 | } | |
352 | ||
353 | vdelay = tvnorm->vdelay; | |
1da177e4 | 354 | |
4ac97914 MCC |
355 | xsf = (width*scaledtwidth)/swidth; |
356 | geo->hscale = ((totalwidth*4096UL)/xsf-4096); | |
357 | geo->hdelay = tvnorm->hdelayx1; | |
358 | geo->hdelay = (geo->hdelay*width)/swidth; | |
359 | geo->hdelay &= 0x3fe; | |
360 | sr = ((tvnorm->sheight >> (interleaved?0:1))*512)/height - 512; | |
361 | geo->vscale = (0x10000UL-sr) & 0x1fff; | |
362 | geo->crop = ((width>>8)&0x03) | ((geo->hdelay>>6)&0x0c) | | |
363 | ((tvnorm->sheight>>4)&0x30) | ((vdelay>>2)&0xc0); | |
364 | geo->vscale |= interleaved ? (BT848_VSCALE_INT<<8) : 0; | |
365 | geo->vdelay = vdelay; | |
366 | geo->width = width; | |
367 | geo->sheight = tvnorm->sheight; | |
1da177e4 LT |
368 | geo->vtotal = tvnorm->vtotal; |
369 | ||
4ac97914 MCC |
370 | if (btv->opt_combfilter) { |
371 | geo->vtc = (width < 193) ? 2 : ((width < 385) ? 1 : 0); | |
372 | geo->comb = (width < 769) ? 1 : 0; | |
373 | } else { | |
374 | geo->vtc = 0; | |
375 | geo->comb = 0; | |
376 | } | |
1da177e4 LT |
377 | } |
378 | ||
e5bd0260 MS |
379 | static void |
380 | bttv_calc_geo (struct bttv * btv, | |
381 | struct bttv_geometry * geo, | |
382 | unsigned int width, | |
383 | unsigned int height, | |
384 | int both_fields, | |
385 | const struct bttv_tvnorm * tvnorm, | |
386 | const struct v4l2_rect * crop) | |
387 | { | |
388 | unsigned int c_width; | |
389 | unsigned int c_height; | |
390 | u32 sr; | |
391 | ||
392 | if ((crop->left == tvnorm->cropcap.defrect.left | |
393 | && crop->top == tvnorm->cropcap.defrect.top | |
394 | && crop->width == tvnorm->cropcap.defrect.width | |
395 | && crop->height == tvnorm->cropcap.defrect.height | |
396 | && width <= tvnorm->swidth /* see PAL-Nc et al */) | |
5221e21e | 397 | || btv->input == btv->dig) { |
e5bd0260 MS |
398 | bttv_calc_geo_old(btv, geo, width, height, |
399 | both_fields, tvnorm); | |
400 | return; | |
401 | } | |
402 | ||
403 | /* For bug compatibility the image size checks permit scale | |
404 | factors > 16. See bttv_crop_calc_limits(). */ | |
405 | c_width = min((unsigned int) crop->width, width * 16); | |
406 | c_height = min((unsigned int) crop->height, height * 16); | |
407 | ||
408 | geo->width = width; | |
409 | geo->hscale = (c_width * 4096U + (width >> 1)) / width - 4096; | |
410 | /* Even to store Cb first, odd for Cr. */ | |
411 | geo->hdelay = ((crop->left * width + c_width) / c_width) & ~1; | |
412 | ||
413 | geo->sheight = c_height; | |
414 | geo->vdelay = crop->top - tvnorm->cropcap.bounds.top + MIN_VDELAY; | |
415 | sr = c_height >> !both_fields; | |
416 | sr = (sr * 512U + (height >> 1)) / height - 512; | |
417 | geo->vscale = (0x10000UL - sr) & 0x1fff; | |
418 | geo->vscale |= both_fields ? (BT848_VSCALE_INT << 8) : 0; | |
419 | geo->vtotal = tvnorm->vtotal; | |
420 | ||
421 | geo->crop = (((geo->width >> 8) & 0x03) | | |
422 | ((geo->hdelay >> 6) & 0x0c) | | |
423 | ((geo->sheight >> 4) & 0x30) | | |
424 | ((geo->vdelay >> 2) & 0xc0)); | |
425 | ||
426 | if (btv->opt_combfilter) { | |
427 | geo->vtc = (width < 193) ? 2 : ((width < 385) ? 1 : 0); | |
428 | geo->comb = (width < 769) ? 1 : 0; | |
429 | } else { | |
430 | geo->vtc = 0; | |
431 | geo->comb = 0; | |
432 | } | |
433 | } | |
434 | ||
1da177e4 LT |
435 | static void |
436 | bttv_apply_geo(struct bttv *btv, struct bttv_geometry *geo, int odd) | |
437 | { | |
4ac97914 | 438 | int off = odd ? 0x80 : 0x00; |
1da177e4 LT |
439 | |
440 | if (geo->comb) | |
441 | btor(BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off); | |
442 | else | |
443 | btand(~BT848_VSCALE_COMB, BT848_E_VSCALE_HI+off); | |
444 | ||
4ac97914 MCC |
445 | btwrite(geo->vtc, BT848_E_VTC+off); |
446 | btwrite(geo->hscale >> 8, BT848_E_HSCALE_HI+off); | |
447 | btwrite(geo->hscale & 0xff, BT848_E_HSCALE_LO+off); | |
448 | btaor((geo->vscale>>8), 0xe0, BT848_E_VSCALE_HI+off); | |
449 | btwrite(geo->vscale & 0xff, BT848_E_VSCALE_LO+off); | |
450 | btwrite(geo->width & 0xff, BT848_E_HACTIVE_LO+off); | |
451 | btwrite(geo->hdelay & 0xff, BT848_E_HDELAY_LO+off); | |
452 | btwrite(geo->sheight & 0xff, BT848_E_VACTIVE_LO+off); | |
453 | btwrite(geo->vdelay & 0xff, BT848_E_VDELAY_LO+off); | |
454 | btwrite(geo->crop, BT848_E_CROP+off); | |
1da177e4 | 455 | btwrite(geo->vtotal>>8, BT848_VTOTAL_HI); |
4ac97914 | 456 | btwrite(geo->vtotal & 0xff, BT848_VTOTAL_LO); |
1da177e4 LT |
457 | } |
458 | ||
459 | /* ---------------------------------------------------------- */ | |
460 | /* risc group / risc main loop / dma management */ | |
461 | ||
462 | void | |
463 | bttv_set_dma(struct bttv *btv, int override) | |
464 | { | |
465 | unsigned long cmd; | |
466 | int capctl; | |
467 | ||
468 | btv->cap_ctl = 0; | |
469 | if (NULL != btv->curr.top) btv->cap_ctl |= 0x02; | |
470 | if (NULL != btv->curr.bottom) btv->cap_ctl |= 0x01; | |
471 | if (NULL != btv->cvbi) btv->cap_ctl |= 0x0c; | |
472 | ||
473 | capctl = 0; | |
474 | capctl |= (btv->cap_ctl & 0x03) ? 0x03 : 0x00; /* capture */ | |
475 | capctl |= (btv->cap_ctl & 0x0c) ? 0x0c : 0x00; /* vbi data */ | |
476 | capctl |= override; | |
477 | ||
8af443e5 | 478 | d2printk("%d: capctl=%x lirq=%d top=%08llx/%08llx even=%08llx/%08llx\n", |
1da177e4 LT |
479 | btv->c.nr,capctl,btv->loop_irq, |
480 | btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, | |
481 | btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0, | |
482 | btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0, | |
483 | btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); | |
484 | ||
485 | cmd = BT848_RISC_JUMP; | |
486 | if (btv->loop_irq) { | |
487 | cmd |= BT848_RISC_IRQ; | |
488 | cmd |= (btv->loop_irq & 0x0f) << 16; | |
489 | cmd |= (~btv->loop_irq & 0x0f) << 20; | |
490 | } | |
491 | if (btv->curr.frame_irq || btv->loop_irq || btv->cvbi) { | |
492 | mod_timer(&btv->timeout, jiffies+BTTV_TIMEOUT); | |
493 | } else { | |
494 | del_timer(&btv->timeout); | |
495 | } | |
4ac97914 | 496 | btv->main.cpu[RISC_SLOT_LOOP] = cpu_to_le32(cmd); |
1da177e4 LT |
497 | |
498 | btaor(capctl, ~0x0f, BT848_CAP_CTL); | |
499 | if (capctl) { | |
500 | if (btv->dma_on) | |
501 | return; | |
502 | btwrite(btv->main.dma, BT848_RISC_STRT_ADD); | |
503 | btor(3, BT848_GPIO_DMA_CTL); | |
504 | btv->dma_on = 1; | |
505 | } else { | |
506 | if (!btv->dma_on) | |
507 | return; | |
4ac97914 | 508 | btand(~3, BT848_GPIO_DMA_CTL); |
1da177e4 LT |
509 | btv->dma_on = 0; |
510 | } | |
511 | return; | |
512 | } | |
513 | ||
514 | int | |
515 | bttv_risc_init_main(struct bttv *btv) | |
516 | { | |
517 | int rc; | |
518 | ||
519 | if ((rc = btcx_riscmem_alloc(btv->c.pci,&btv->main,PAGE_SIZE)) < 0) | |
520 | return rc; | |
8af443e5 JP |
521 | dprintk("%d: risc main @ %08llx\n", |
522 | btv->c.nr, (unsigned long long)btv->main.dma); | |
1da177e4 LT |
523 | |
524 | btv->main.cpu[0] = cpu_to_le32(BT848_RISC_SYNC | BT848_RISC_RESYNC | | |
525 | BT848_FIFO_STATUS_VRE); | |
526 | btv->main.cpu[1] = cpu_to_le32(0); | |
527 | btv->main.cpu[2] = cpu_to_le32(BT848_RISC_JUMP); | |
528 | btv->main.cpu[3] = cpu_to_le32(btv->main.dma + (4<<2)); | |
529 | ||
530 | /* top field */ | |
531 | btv->main.cpu[4] = cpu_to_le32(BT848_RISC_JUMP); | |
532 | btv->main.cpu[5] = cpu_to_le32(btv->main.dma + (6<<2)); | |
533 | btv->main.cpu[6] = cpu_to_le32(BT848_RISC_JUMP); | |
534 | btv->main.cpu[7] = cpu_to_le32(btv->main.dma + (8<<2)); | |
535 | ||
4ac97914 | 536 | btv->main.cpu[8] = cpu_to_le32(BT848_RISC_SYNC | BT848_RISC_RESYNC | |
1da177e4 | 537 | BT848_FIFO_STATUS_VRO); |
4ac97914 | 538 | btv->main.cpu[9] = cpu_to_le32(0); |
1da177e4 LT |
539 | |
540 | /* bottom field */ | |
4ac97914 | 541 | btv->main.cpu[10] = cpu_to_le32(BT848_RISC_JUMP); |
1da177e4 | 542 | btv->main.cpu[11] = cpu_to_le32(btv->main.dma + (12<<2)); |
4ac97914 | 543 | btv->main.cpu[12] = cpu_to_le32(BT848_RISC_JUMP); |
1da177e4 LT |
544 | btv->main.cpu[13] = cpu_to_le32(btv->main.dma + (14<<2)); |
545 | ||
546 | /* jump back to top field */ | |
547 | btv->main.cpu[14] = cpu_to_le32(BT848_RISC_JUMP); | |
4ac97914 | 548 | btv->main.cpu[15] = cpu_to_le32(btv->main.dma + (0<<2)); |
1da177e4 LT |
549 | |
550 | return 0; | |
551 | } | |
552 | ||
553 | int | |
554 | bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc, | |
555 | int irqflags) | |
556 | { | |
557 | unsigned long cmd; | |
558 | unsigned long next = btv->main.dma + ((slot+2) << 2); | |
559 | ||
560 | if (NULL == risc) { | |
8af443e5 | 561 | d2printk("%d: risc=%p slot[%d]=NULL\n", btv->c.nr, risc, slot); |
1da177e4 LT |
562 | btv->main.cpu[slot+1] = cpu_to_le32(next); |
563 | } else { | |
8af443e5 JP |
564 | d2printk("%d: risc=%p slot[%d]=%08llx irq=%d\n", |
565 | btv->c.nr, risc, slot, | |
566 | (unsigned long long)risc->dma, irqflags); | |
1da177e4 LT |
567 | cmd = BT848_RISC_JUMP; |
568 | if (irqflags) { | |
569 | cmd |= BT848_RISC_IRQ; | |
570 | cmd |= (irqflags & 0x0f) << 16; | |
571 | cmd |= (~irqflags & 0x0f) << 20; | |
572 | } | |
573 | risc->jmp[0] = cpu_to_le32(cmd); | |
574 | risc->jmp[1] = cpu_to_le32(next); | |
575 | btv->main.cpu[slot+1] = cpu_to_le32(risc->dma); | |
576 | } | |
577 | return 0; | |
578 | } | |
579 | ||
580 | void | |
c7b0ac05 | 581 | bttv_dma_free(struct videobuf_queue *q,struct bttv *btv, struct bttv_buffer *buf) |
1da177e4 | 582 | { |
c1accaa2 MCC |
583 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
584 | ||
ae24601b | 585 | BUG_ON(in_interrupt()); |
0e0809a5 | 586 | videobuf_waiton(q, &buf->vb, 0, 0); |
95268403 | 587 | videobuf_dma_unmap(q->dev, dma); |
c1accaa2 | 588 | videobuf_dma_free(dma); |
1da177e4 LT |
589 | btcx_riscmem_free(btv->c.pci,&buf->bottom); |
590 | btcx_riscmem_free(btv->c.pci,&buf->top); | |
0fc0686e | 591 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
1da177e4 LT |
592 | } |
593 | ||
594 | int | |
595 | bttv_buffer_activate_vbi(struct bttv *btv, | |
596 | struct bttv_buffer *vbi) | |
597 | { | |
e5bd0260 MS |
598 | struct btcx_riscmem *top; |
599 | struct btcx_riscmem *bottom; | |
600 | int top_irq_flags; | |
601 | int bottom_irq_flags; | |
602 | ||
603 | top = NULL; | |
604 | bottom = NULL; | |
605 | top_irq_flags = 0; | |
606 | bottom_irq_flags = 0; | |
607 | ||
1da177e4 | 608 | if (vbi) { |
e5bd0260 MS |
609 | unsigned int crop, vdelay; |
610 | ||
0fc0686e | 611 | vbi->vb.state = VIDEOBUF_ACTIVE; |
1da177e4 | 612 | list_del(&vbi->vb.queue); |
e5bd0260 MS |
613 | |
614 | /* VDELAY is start of video, end of VBI capturing. */ | |
615 | crop = btread(BT848_E_CROP); | |
616 | vdelay = btread(BT848_E_VDELAY_LO) + ((crop & 0xc0) << 2); | |
617 | ||
618 | if (vbi->geo.vdelay > vdelay) { | |
619 | vdelay = vbi->geo.vdelay & 0xfe; | |
620 | crop = (crop & 0x3f) | ((vbi->geo.vdelay >> 2) & 0xc0); | |
621 | ||
622 | btwrite(vdelay, BT848_E_VDELAY_LO); | |
623 | btwrite(crop, BT848_E_CROP); | |
624 | btwrite(vdelay, BT848_O_VDELAY_LO); | |
625 | btwrite(crop, BT848_O_CROP); | |
626 | } | |
627 | ||
628 | if (vbi->vbi_count[0] > 0) { | |
629 | top = &vbi->top; | |
630 | top_irq_flags = 4; | |
631 | } | |
632 | ||
633 | if (vbi->vbi_count[1] > 0) { | |
634 | top_irq_flags = 0; | |
635 | bottom = &vbi->bottom; | |
636 | bottom_irq_flags = 4; | |
637 | } | |
1da177e4 | 638 | } |
e5bd0260 MS |
639 | |
640 | bttv_risc_hook(btv, RISC_SLOT_O_VBI, top, top_irq_flags); | |
641 | bttv_risc_hook(btv, RISC_SLOT_E_VBI, bottom, bottom_irq_flags); | |
642 | ||
1da177e4 LT |
643 | return 0; |
644 | } | |
645 | ||
646 | int | |
647 | bttv_buffer_activate_video(struct bttv *btv, | |
648 | struct bttv_buffer_set *set) | |
649 | { | |
650 | /* video capture */ | |
651 | if (NULL != set->top && NULL != set->bottom) { | |
652 | if (set->top == set->bottom) { | |
0fc0686e | 653 | set->top->vb.state = VIDEOBUF_ACTIVE; |
1da177e4 LT |
654 | if (set->top->vb.queue.next) |
655 | list_del(&set->top->vb.queue); | |
656 | } else { | |
0fc0686e BP |
657 | set->top->vb.state = VIDEOBUF_ACTIVE; |
658 | set->bottom->vb.state = VIDEOBUF_ACTIVE; | |
1da177e4 LT |
659 | if (set->top->vb.queue.next) |
660 | list_del(&set->top->vb.queue); | |
661 | if (set->bottom->vb.queue.next) | |
662 | list_del(&set->bottom->vb.queue); | |
663 | } | |
664 | bttv_apply_geo(btv, &set->top->geo, 1); | |
665 | bttv_apply_geo(btv, &set->bottom->geo,0); | |
666 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, &set->top->top, | |
667 | set->top_irq); | |
668 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, &set->bottom->bottom, | |
669 | set->frame_irq); | |
670 | btaor((set->top->btformat & 0xf0) | (set->bottom->btformat & 0x0f), | |
671 | ~0xff, BT848_COLOR_FMT); | |
672 | btaor((set->top->btswap & 0x0a) | (set->bottom->btswap & 0x05), | |
673 | ~0x0f, BT848_COLOR_CTL); | |
674 | } else if (NULL != set->top) { | |
0fc0686e | 675 | set->top->vb.state = VIDEOBUF_ACTIVE; |
1da177e4 LT |
676 | if (set->top->vb.queue.next) |
677 | list_del(&set->top->vb.queue); | |
678 | bttv_apply_geo(btv, &set->top->geo,1); | |
679 | bttv_apply_geo(btv, &set->top->geo,0); | |
680 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, &set->top->top, | |
681 | set->frame_irq); | |
682 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, NULL, 0); | |
683 | btaor(set->top->btformat & 0xff, ~0xff, BT848_COLOR_FMT); | |
684 | btaor(set->top->btswap & 0x0f, ~0x0f, BT848_COLOR_CTL); | |
685 | } else if (NULL != set->bottom) { | |
0fc0686e | 686 | set->bottom->vb.state = VIDEOBUF_ACTIVE; |
1da177e4 LT |
687 | if (set->bottom->vb.queue.next) |
688 | list_del(&set->bottom->vb.queue); | |
689 | bttv_apply_geo(btv, &set->bottom->geo,1); | |
690 | bttv_apply_geo(btv, &set->bottom->geo,0); | |
691 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); | |
692 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, &set->bottom->bottom, | |
693 | set->frame_irq); | |
694 | btaor(set->bottom->btformat & 0xff, ~0xff, BT848_COLOR_FMT); | |
695 | btaor(set->bottom->btswap & 0x0f, ~0x0f, BT848_COLOR_CTL); | |
696 | } else { | |
697 | bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); | |
698 | bttv_risc_hook(btv, RISC_SLOT_E_FIELD, NULL, 0); | |
699 | } | |
700 | return 0; | |
701 | } | |
702 | ||
703 | /* ---------------------------------------------------------- */ | |
704 | ||
705 | /* calculate geometry, build risc code */ | |
706 | int | |
707 | bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf) | |
708 | { | |
709 | const struct bttv_tvnorm *tvnorm = bttv_tvnorms + buf->tvnorm; | |
c1accaa2 | 710 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
1da177e4 | 711 | |
8af443e5 | 712 | dprintk("%d: buffer field: %s format: %s size: %dx%d\n", |
1da177e4 LT |
713 | btv->c.nr, v4l2_field_names[buf->vb.field], |
714 | buf->fmt->name, buf->vb.width, buf->vb.height); | |
715 | ||
716 | /* packed pixel modes */ | |
717 | if (buf->fmt->flags & FORMAT_FLAGS_PACKED) { | |
718 | int bpl = (buf->fmt->depth >> 3) * buf->vb.width; | |
719 | int bpf = bpl * (buf->vb.height >> 1); | |
720 | ||
721 | bttv_calc_geo(btv,&buf->geo,buf->vb.width,buf->vb.height, | |
e5bd0260 MS |
722 | V4L2_FIELD_HAS_BOTH(buf->vb.field), |
723 | tvnorm,&buf->crop); | |
1da177e4 LT |
724 | |
725 | switch (buf->vb.field) { | |
726 | case V4L2_FIELD_TOP: | |
c1accaa2 | 727 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 MS |
728 | /* offset */ 0,bpl, |
729 | /* padding */ 0,/* skip_lines */ 0, | |
730 | buf->vb.height); | |
1da177e4 LT |
731 | break; |
732 | case V4L2_FIELD_BOTTOM: | |
c1accaa2 | 733 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 734 | 0,bpl,0,0,buf->vb.height); |
1da177e4 LT |
735 | break; |
736 | case V4L2_FIELD_INTERLACED: | |
c1accaa2 | 737 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 | 738 | 0,bpl,bpl,0,buf->vb.height >> 1); |
c1accaa2 | 739 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 740 | bpl,bpl,bpl,0,buf->vb.height >> 1); |
1da177e4 LT |
741 | break; |
742 | case V4L2_FIELD_SEQ_TB: | |
c1accaa2 | 743 | bttv_risc_packed(btv,&buf->top,dma->sglist, |
e5bd0260 | 744 | 0,bpl,0,0,buf->vb.height >> 1); |
c1accaa2 | 745 | bttv_risc_packed(btv,&buf->bottom,dma->sglist, |
e5bd0260 | 746 | bpf,bpl,0,0,buf->vb.height >> 1); |
1da177e4 LT |
747 | break; |
748 | default: | |
749 | BUG(); | |
750 | } | |
751 | } | |
752 | ||
753 | /* planar modes */ | |
754 | if (buf->fmt->flags & FORMAT_FLAGS_PLANAR) { | |
755 | int uoffset, voffset; | |
756 | int ypadding, cpadding, lines; | |
757 | ||
758 | /* calculate chroma offsets */ | |
759 | uoffset = buf->vb.width * buf->vb.height; | |
760 | voffset = buf->vb.width * buf->vb.height; | |
761 | if (buf->fmt->flags & FORMAT_FLAGS_CrCb) { | |
762 | /* Y-Cr-Cb plane order */ | |
763 | uoffset >>= buf->fmt->hshift; | |
764 | uoffset >>= buf->fmt->vshift; | |
765 | uoffset += voffset; | |
766 | } else { | |
767 | /* Y-Cb-Cr plane order */ | |
768 | voffset >>= buf->fmt->hshift; | |
769 | voffset >>= buf->fmt->vshift; | |
770 | voffset += uoffset; | |
771 | } | |
772 | ||
773 | switch (buf->vb.field) { | |
774 | case V4L2_FIELD_TOP: | |
775 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
776 | buf->vb.height,/* both_fields */ 0, |
777 | tvnorm,&buf->crop); | |
c1accaa2 | 778 | bttv_risc_planar(btv, &buf->top, dma->sglist, |
1da177e4 LT |
779 | 0,buf->vb.width,0,buf->vb.height, |
780 | uoffset,voffset,buf->fmt->hshift, | |
781 | buf->fmt->vshift,0); | |
782 | break; | |
783 | case V4L2_FIELD_BOTTOM: | |
784 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
785 | buf->vb.height,0, |
786 | tvnorm,&buf->crop); | |
c1accaa2 | 787 | bttv_risc_planar(btv, &buf->bottom, dma->sglist, |
1da177e4 LT |
788 | 0,buf->vb.width,0,buf->vb.height, |
789 | uoffset,voffset,buf->fmt->hshift, | |
790 | buf->fmt->vshift,0); | |
791 | break; | |
792 | case V4L2_FIELD_INTERLACED: | |
793 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
794 | buf->vb.height,1, |
795 | tvnorm,&buf->crop); | |
1da177e4 LT |
796 | lines = buf->vb.height >> 1; |
797 | ypadding = buf->vb.width; | |
798 | cpadding = buf->vb.width >> buf->fmt->hshift; | |
799 | bttv_risc_planar(btv,&buf->top, | |
c1accaa2 | 800 | dma->sglist, |
1da177e4 LT |
801 | 0,buf->vb.width,ypadding,lines, |
802 | uoffset,voffset, | |
803 | buf->fmt->hshift, | |
804 | buf->fmt->vshift, | |
805 | cpadding); | |
806 | bttv_risc_planar(btv,&buf->bottom, | |
c1accaa2 | 807 | dma->sglist, |
1da177e4 LT |
808 | ypadding,buf->vb.width,ypadding,lines, |
809 | uoffset+cpadding, | |
810 | voffset+cpadding, | |
811 | buf->fmt->hshift, | |
812 | buf->fmt->vshift, | |
813 | cpadding); | |
814 | break; | |
815 | case V4L2_FIELD_SEQ_TB: | |
816 | bttv_calc_geo(btv,&buf->geo,buf->vb.width, | |
e5bd0260 MS |
817 | buf->vb.height,1, |
818 | tvnorm,&buf->crop); | |
1da177e4 LT |
819 | lines = buf->vb.height >> 1; |
820 | ypadding = buf->vb.width; | |
821 | cpadding = buf->vb.width >> buf->fmt->hshift; | |
822 | bttv_risc_planar(btv,&buf->top, | |
c1accaa2 | 823 | dma->sglist, |
1da177e4 LT |
824 | 0,buf->vb.width,0,lines, |
825 | uoffset >> 1, | |
826 | voffset >> 1, | |
827 | buf->fmt->hshift, | |
828 | buf->fmt->vshift, | |
829 | 0); | |
830 | bttv_risc_planar(btv,&buf->bottom, | |
c1accaa2 | 831 | dma->sglist, |
1da177e4 LT |
832 | lines * ypadding,buf->vb.width,0,lines, |
833 | lines * ypadding + (uoffset >> 1), | |
834 | lines * ypadding + (voffset >> 1), | |
835 | buf->fmt->hshift, | |
836 | buf->fmt->vshift, | |
837 | 0); | |
838 | break; | |
839 | default: | |
840 | BUG(); | |
841 | } | |
842 | } | |
843 | ||
844 | /* raw data */ | |
845 | if (buf->fmt->flags & FORMAT_FLAGS_RAW) { | |
846 | /* build risc code */ | |
847 | buf->vb.field = V4L2_FIELD_SEQ_TB; | |
848 | bttv_calc_geo(btv,&buf->geo,tvnorm->swidth,tvnorm->sheight, | |
e5bd0260 | 849 | 1,tvnorm,&buf->crop); |
c1accaa2 | 850 | bttv_risc_packed(btv, &buf->top, dma->sglist, |
e5bd0260 MS |
851 | /* offset */ 0, RAW_BPL, /* padding */ 0, |
852 | /* skip_lines */ 0, RAW_LINES); | |
c1accaa2 | 853 | bttv_risc_packed(btv, &buf->bottom, dma->sglist, |
e5bd0260 | 854 | buf->vb.size/2 , RAW_BPL, 0, 0, RAW_LINES); |
1da177e4 LT |
855 | } |
856 | ||
857 | /* copy format info */ | |
858 | buf->btformat = buf->fmt->btformat; | |
859 | buf->btswap = buf->fmt->btswap; | |
860 | return 0; | |
861 | } | |
862 | ||
863 | /* ---------------------------------------------------------- */ | |
864 | ||
865 | /* calculate geometry, build risc code */ | |
866 | int | |
867 | bttv_overlay_risc(struct bttv *btv, | |
868 | struct bttv_overlay *ov, | |
869 | const struct bttv_format *fmt, | |
870 | struct bttv_buffer *buf) | |
871 | { | |
872 | /* check interleave, bottom+top fields */ | |
8af443e5 | 873 | dprintk("%d: overlay fields: %s format: %s size: %dx%d\n", |
1da177e4 | 874 | btv->c.nr, v4l2_field_names[buf->vb.field], |
8af443e5 | 875 | fmt->name, ov->w.width, ov->w.height); |
1da177e4 LT |
876 | |
877 | /* calculate geometry */ | |
878 | bttv_calc_geo(btv,&buf->geo,ov->w.width,ov->w.height, | |
e5bd0260 MS |
879 | V4L2_FIELD_HAS_BOTH(ov->field), |
880 | &bttv_tvnorms[ov->tvnorm],&buf->crop); | |
1da177e4 LT |
881 | |
882 | /* build risc code */ | |
883 | switch (ov->field) { | |
884 | case V4L2_FIELD_TOP: | |
885 | bttv_risc_overlay(btv, &buf->top, fmt, ov, 0, 0); | |
886 | break; | |
887 | case V4L2_FIELD_BOTTOM: | |
888 | bttv_risc_overlay(btv, &buf->bottom, fmt, ov, 0, 0); | |
889 | break; | |
890 | case V4L2_FIELD_INTERLACED: | |
1da177e4 LT |
891 | bttv_risc_overlay(btv, &buf->top, fmt, ov, 0, 1); |
892 | bttv_risc_overlay(btv, &buf->bottom, fmt, ov, 1, 0); | |
1da177e4 LT |
893 | break; |
894 | default: | |
895 | BUG(); | |
896 | } | |
897 | ||
898 | /* copy format info */ | |
899 | buf->btformat = fmt->btformat; | |
900 | buf->btswap = fmt->btswap; | |
901 | buf->vb.field = ov->field; | |
902 | return 0; | |
903 | } |