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-rw-r--r--drivers/media/video/bt8xx/bttv-driver.c891
-rw-r--r--drivers/media/video/bt8xx/bttv-risc.c171
-rw-r--r--drivers/media/video/bt8xx/bttv-vbi.c366
-rw-r--r--drivers/media/video/bt8xx/bttvp.h88
4 files changed, 1278 insertions, 238 deletions
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 41fd09d7d11e..50dfad47ccff 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -9,6 +9,10 @@
9 some v4l2 code lines are taken from Justin's bttv2 driver which is 9 some v4l2 code lines are taken from Justin's bttv2 driver which is
10 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za> 10 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
11 11
12 Cropping and overscan support
13 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
14 Sponsored by OPQ Systems AB
15
12 This program is free software; you can redistribute it and/or modify 16 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by 17 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or 18 the Free Software Foundation; either version 2 of the License, or
@@ -64,6 +68,7 @@ static unsigned int radio[BTTV_MAX];
64static unsigned int irq_debug; 68static unsigned int irq_debug;
65static unsigned int gbuffers = 8; 69static unsigned int gbuffers = 8;
66static unsigned int gbufsize = 0x208000; 70static unsigned int gbufsize = 0x208000;
71static unsigned int reset_crop = 1;
67 72
68static int video_nr = -1; 73static int video_nr = -1;
69static int radio_nr = -1; 74static int radio_nr = -1;
@@ -103,6 +108,7 @@ module_param(radio_nr, int, 0444);
103module_param(vbi_nr, int, 0444); 108module_param(vbi_nr, int, 0444);
104module_param(gbuffers, int, 0444); 109module_param(gbuffers, int, 0444);
105module_param(gbufsize, int, 0444); 110module_param(gbufsize, int, 0444);
111module_param(reset_crop, int, 0444);
106 112
107module_param(v4l2, int, 0644); 113module_param(v4l2, int, 0644);
108module_param(bigendian, int, 0644); 114module_param(bigendian, int, 0644);
@@ -129,6 +135,8 @@ MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
129MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)"); 135MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
130MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8"); 136MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
131MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000"); 137MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
138MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
139 "is 1 (yes) for compatibility with older applications");
132MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)"); 140MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
133MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)"); 141MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
134MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)"); 142MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
@@ -192,6 +200,33 @@ static u8 SRAM_Table[][60] =
192 } 200 }
193}; 201};
194 202
203/* minhdelayx1 first video pixel we can capture on a line and
204 hdelayx1 start of active video, both relative to rising edge of
205 /HRESET pulse (0H) in 1 / fCLKx1.
206 swidth width of active video and
207 totalwidth total line width, both in 1 / fCLKx1.
208 sqwidth total line width in square pixels.
209 vdelay start of active video in 2 * field lines relative to
210 trailing edge of /VRESET pulse (VDELAY register).
211 sheight height of active video in 2 * field lines.
212 videostart0 ITU-R frame line number of the line corresponding
213 to vdelay in the first field. */
214#define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
215 vdelay, sheight, videostart0) \
216 .cropcap.bounds.left = minhdelayx1, \
217 /* * 2 because vertically we count field lines times two, */ \
218 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
219 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
220 /* 4 is a safety margin at the end of the line. */ \
221 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
222 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
223 .cropcap.defrect.left = hdelayx1, \
224 .cropcap.defrect.top = (videostart0) * 2, \
225 .cropcap.defrect.width = swidth, \
226 .cropcap.defrect.height = sheight, \
227 .cropcap.pixelaspect.numerator = totalwidth, \
228 .cropcap.pixelaspect.denominator = sqwidth,
229
195const struct bttv_tvnorm bttv_tvnorms[] = { 230const struct bttv_tvnorm bttv_tvnorms[] = {
196 /* PAL-BDGHI */ 231 /* PAL-BDGHI */
197 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */ 232 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
@@ -210,11 +245,26 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
210 .hdelayx1 = 186, 245 .hdelayx1 = 186,
211 .hactivex1 = 924, 246 .hactivex1 = 924,
212 .vdelay = 0x20, 247 .vdelay = 0x20,
213 .vbipack = 255, 248 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
214 .sram = 0, 249 .sram = 0,
215 /* ITU-R frame line number of the first VBI line 250 /* ITU-R frame line number of the first VBI line
216 we can capture, of the first and second field. */ 251 we can capture, of the first and second field.
217 .vbistart = { 7,320 }, 252 The last line is determined by cropcap.bounds. */
253 .vbistart = { 7, 320 },
254 CROPCAP(/* minhdelayx1 */ 68,
255 /* hdelayx1 */ 186,
256 /* Should be (768 * 1135 + 944 / 2) / 944.
257 cropcap.defrect is used for image width
258 checks, so we keep the old value 924. */
259 /* swidth */ 924,
260 /* totalwidth */ 1135,
261 /* sqwidth */ 944,
262 /* vdelay */ 0x20,
263 /* sheight */ 576,
264 /* videostart0 */ 23)
265 /* bt878 (and bt848?) can capture another
266 line below active video. */
267 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
218 },{ 268 },{
219 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, 269 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
220 .name = "NTSC", 270 .name = "NTSC",
@@ -229,9 +279,18 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
229 .hdelayx1 = 128, 279 .hdelayx1 = 128,
230 .hactivex1 = 910, 280 .hactivex1 = 910,
231 .vdelay = 0x1a, 281 .vdelay = 0x1a,
232 .vbipack = 144, 282 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
233 .sram = 1, 283 .sram = 1,
234 .vbistart = { 10, 273 }, 284 .vbistart = { 10, 273 },
285 CROPCAP(/* minhdelayx1 */ 68,
286 /* hdelayx1 */ 128,
287 /* Should be (640 * 910 + 780 / 2) / 780? */
288 /* swidth */ 768,
289 /* totalwidth */ 910,
290 /* sqwidth */ 780,
291 /* vdelay */ 0x1a,
292 /* sheight */ 480,
293 /* videostart0 */ 23)
235 },{ 294 },{
236 .v4l2_id = V4L2_STD_SECAM, 295 .v4l2_id = V4L2_STD_SECAM,
237 .name = "SECAM", 296 .name = "SECAM",
@@ -249,6 +308,14 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
249 .vbipack = 255, 308 .vbipack = 255,
250 .sram = 0, /* like PAL, correct? */ 309 .sram = 0, /* like PAL, correct? */
251 .vbistart = { 7, 320 }, 310 .vbistart = { 7, 320 },
311 CROPCAP(/* minhdelayx1 */ 68,
312 /* hdelayx1 */ 186,
313 /* swidth */ 924,
314 /* totalwidth */ 1135,
315 /* sqwidth */ 944,
316 /* vdelay */ 0x20,
317 /* sheight */ 576,
318 /* videostart0 */ 23)
252 },{ 319 },{
253 .v4l2_id = V4L2_STD_PAL_Nc, 320 .v4l2_id = V4L2_STD_PAL_Nc,
254 .name = "PAL-Nc", 321 .name = "PAL-Nc",
@@ -266,6 +333,14 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
266 .vbipack = 144, 333 .vbipack = 144,
267 .sram = -1, 334 .sram = -1,
268 .vbistart = { 7, 320 }, 335 .vbistart = { 7, 320 },
336 CROPCAP(/* minhdelayx1 */ 68,
337 /* hdelayx1 */ 130,
338 /* swidth */ (640 * 910 + 780 / 2) / 780,
339 /* totalwidth */ 910,
340 /* sqwidth */ 780,
341 /* vdelay */ 0x1a,
342 /* sheight */ 576,
343 /* videostart0 */ 23)
269 },{ 344 },{
270 .v4l2_id = V4L2_STD_PAL_M, 345 .v4l2_id = V4L2_STD_PAL_M,
271 .name = "PAL-M", 346 .name = "PAL-M",
@@ -283,6 +358,14 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
283 .vbipack = 144, 358 .vbipack = 144,
284 .sram = -1, 359 .sram = -1,
285 .vbistart = { 10, 273 }, 360 .vbistart = { 10, 273 },
361 CROPCAP(/* minhdelayx1 */ 68,
362 /* hdelayx1 */ 135,
363 /* swidth */ (640 * 910 + 780 / 2) / 780,
364 /* totalwidth */ 910,
365 /* sqwidth */ 780,
366 /* vdelay */ 0x1a,
367 /* sheight */ 480,
368 /* videostart0 */ 23)
286 },{ 369 },{
287 .v4l2_id = V4L2_STD_PAL_N, 370 .v4l2_id = V4L2_STD_PAL_N,
288 .name = "PAL-N", 371 .name = "PAL-N",
@@ -299,7 +382,15 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
299 .vdelay = 0x20, 382 .vdelay = 0x20,
300 .vbipack = 144, 383 .vbipack = 144,
301 .sram = -1, 384 .sram = -1,
302 .vbistart = { 7, 320}, 385 .vbistart = { 7, 320 },
386 CROPCAP(/* minhdelayx1 */ 68,
387 /* hdelayx1 */ 186,
388 /* swidth */ (768 * 1135 + 944 / 2) / 944,
389 /* totalwidth */ 1135,
390 /* sqwidth */ 944,
391 /* vdelay */ 0x20,
392 /* sheight */ 576,
393 /* videostart0 */ 23)
303 },{ 394 },{
304 .v4l2_id = V4L2_STD_NTSC_M_JP, 395 .v4l2_id = V4L2_STD_NTSC_M_JP,
305 .name = "NTSC-JP", 396 .name = "NTSC-JP",
@@ -316,7 +407,15 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
316 .vdelay = 0x16, 407 .vdelay = 0x16,
317 .vbipack = 144, 408 .vbipack = 144,
318 .sram = -1, 409 .sram = -1,
319 .vbistart = {10, 273}, 410 .vbistart = { 10, 273 },
411 CROPCAP(/* minhdelayx1 */ 68,
412 /* hdelayx1 */ 135,
413 /* swidth */ (640 * 910 + 780 / 2) / 780,
414 /* totalwidth */ 910,
415 /* sqwidth */ 780,
416 /* vdelay */ 0x16,
417 /* sheight */ 480,
418 /* videostart0 */ 23)
320 },{ 419 },{
321 /* that one hopefully works with the strange timing 420 /* that one hopefully works with the strange timing
322 * which video recorders produce when playing a NTSC 421 * which video recorders produce when playing a NTSC
@@ -338,6 +437,14 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
338 .vtotal = 524, 437 .vtotal = 524,
339 .sram = -1, 438 .sram = -1,
340 .vbistart = { 10, 273 }, 439 .vbistart = { 10, 273 },
440 CROPCAP(/* minhdelayx1 */ 68,
441 /* hdelayx1 */ 186,
442 /* swidth */ 924,
443 /* totalwidth */ 1135,
444 /* sqwidth */ 944,
445 /* vdelay */ 0x1a,
446 /* sheight */ 480,
447 /* videostart0 */ 23)
341 } 448 }
342}; 449};
343static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms); 450static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
@@ -678,25 +785,89 @@ static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
678/* ----------------------------------------------------------------------- */ 785/* ----------------------------------------------------------------------- */
679/* resource management */ 786/* resource management */
680 787
788/*
789 RESOURCE_ allocated by freed by
790
791 VIDEO_READ bttv_read 1) bttv_read 2)
792
793 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
794 VIDIOC_QBUF 1) bttv_release
795 VIDIOCMCAPTURE 1)
796
797 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
798 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
799 3) bttv_release
800
801 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
802 VIDIOC_QBUF 1) bttv_release
803 bttv_read, bttv_poll 1) 4)
804
805 1) The resource must be allocated when we enter buffer prepare functions
806 and remain allocated while buffers are in the DMA queue.
807 2) This is a single frame read.
808 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
809 RESOURCE_OVERLAY is allocated.
810 4) This is a continuous read, implies VIDIOC_STREAMON.
811
812 Note this driver permits video input and standard changes regardless if
813 resources are allocated.
814*/
815
816#define VBI_RESOURCES (RESOURCE_VBI)
817#define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
818 RESOURCE_VIDEO_STREAM | \
819 RESOURCE_OVERLAY)
820
681static 821static
682int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit) 822int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
683{ 823{
824 int xbits; /* mutual exclusive resources */
825
684 if (fh->resources & bit) 826 if (fh->resources & bit)
685 /* have it already allocated */ 827 /* have it already allocated */
686 return 1; 828 return 1;
687 829
830 xbits = bit;
831 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
832 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
833
688 /* is it free? */ 834 /* is it free? */
689 mutex_lock(&btv->reslock); 835 mutex_lock(&btv->lock);
690 if (btv->resources & bit) { 836 if (btv->resources & xbits) {
691 /* no, someone else uses it */ 837 /* no, someone else uses it */
692 mutex_unlock(&btv->reslock); 838 goto fail;
693 return 0; 839 }
840
841 if ((bit & VIDEO_RESOURCES)
842 && 0 == (btv->resources & VIDEO_RESOURCES)) {
843 /* Do crop - use current, don't - use default parameters. */
844 __s32 top = btv->crop[!!fh->do_crop].rect.top;
845
846 if (btv->vbi_end > top)
847 goto fail;
848
849 /* We cannot capture the same line as video and VBI data.
850 Claim scan lines crop[].rect.top to bottom. */
851 btv->crop_start = top;
852 } else if (bit & VBI_RESOURCES) {
853 __s32 end = fh->vbi_fmt.end;
854
855 if (end > btv->crop_start)
856 goto fail;
857
858 /* Claim scan lines above fh->vbi_fmt.end. */
859 btv->vbi_end = end;
694 } 860 }
861
695 /* it's free, grab it */ 862 /* it's free, grab it */
696 fh->resources |= bit; 863 fh->resources |= bit;
697 btv->resources |= bit; 864 btv->resources |= bit;
698 mutex_unlock(&btv->reslock); 865 mutex_unlock(&btv->lock);
699 return 1; 866 return 1;
867
868 fail:
869 mutex_unlock(&btv->lock);
870 return 0;
700} 871}
701 872
702static 873static
@@ -711,6 +882,35 @@ int locked_btres(struct bttv *btv, int bit)
711 return (btv->resources & bit); 882 return (btv->resources & bit);
712} 883}
713 884
885/* Call with btv->lock down. */
886static void
887disclaim_vbi_lines(struct bttv *btv)
888{
889 btv->vbi_end = 0;
890}
891
892/* Call with btv->lock down. */
893static void
894disclaim_video_lines(struct bttv *btv)
895{
896 const struct bttv_tvnorm *tvnorm;
897 u8 crop;
898
899 tvnorm = &bttv_tvnorms[btv->tvnorm];
900 btv->crop_start = tvnorm->cropcap.bounds.top
901 + tvnorm->cropcap.bounds.height;
902
903 /* VBI capturing ends at VDELAY, start of video capturing, no
904 matter how many lines the VBI RISC program expects. When video
905 capturing is off, it shall no longer "preempt" VBI capturing,
906 so we set VDELAY to maximum. */
907 crop = btread(BT848_E_CROP) | 0xc0;
908 btwrite(crop, BT848_E_CROP);
909 btwrite(0xfe, BT848_E_VDELAY_LO);
910 btwrite(crop, BT848_O_CROP);
911 btwrite(0xfe, BT848_O_VDELAY_LO);
912}
913
714static 914static
715void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits) 915void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
716{ 916{
@@ -718,10 +918,19 @@ void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
718 /* trying to free ressources not allocated by us ... */ 918 /* trying to free ressources not allocated by us ... */
719 printk("bttv: BUG! (btres)\n"); 919 printk("bttv: BUG! (btres)\n");
720 } 920 }
721 mutex_lock(&btv->reslock); 921 mutex_lock(&btv->lock);
722 fh->resources &= ~bits; 922 fh->resources &= ~bits;
723 btv->resources &= ~bits; 923 btv->resources &= ~bits;
724 mutex_unlock(&btv->reslock); 924
925 bits = btv->resources;
926
927 if (0 == (bits & VIDEO_RESOURCES))
928 disclaim_video_lines(btv);
929
930 if (0 == (bits & VBI_RESOURCES))
931 disclaim_vbi_lines(btv);
932
933 mutex_unlock(&btv->lock);
725} 934}
726 935
727/* ----------------------------------------------------------------------- */ 936/* ----------------------------------------------------------------------- */
@@ -1030,6 +1239,36 @@ i2c_vidiocschan(struct bttv *btv)
1030 bttv_tda9880_setnorm(btv,btv->tvnorm); 1239 bttv_tda9880_setnorm(btv,btv->tvnorm);
1031} 1240}
1032 1241
1242static void
1243bttv_crop_calc_limits(struct bttv_crop *c)
1244{
1245 /* Scale factor min. 1:1, max. 16:1. Min. image size
1246 48 x 32. Scaled width must be a multiple of 4. */
1247
1248 if (1) {
1249 /* For bug compatibility with VIDIOCGCAP and image
1250 size checks in earlier driver versions. */
1251 c->min_scaled_width = 48;
1252 c->min_scaled_height = 32;
1253 } else {
1254 c->min_scaled_width =
1255 (max(48, c->rect.width >> 4) + 3) & ~3;
1256 c->min_scaled_height =
1257 max(32, c->rect.height >> 4);
1258 }
1259
1260 c->max_scaled_width = c->rect.width & ~3;
1261 c->max_scaled_height = c->rect.height;
1262}
1263
1264static void
1265bttv_crop_reset(struct bttv_crop *c, int norm)
1266{
1267 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1268 bttv_crop_calc_limits(c);
1269}
1270
1271/* Call with btv->lock down. */
1033static int 1272static int
1034set_tvnorm(struct bttv *btv, unsigned int norm) 1273set_tvnorm(struct bttv *btv, unsigned int norm)
1035{ 1274{
@@ -1038,9 +1277,24 @@ set_tvnorm(struct bttv *btv, unsigned int norm)
1038 if (norm < 0 || norm >= BTTV_TVNORMS) 1277 if (norm < 0 || norm >= BTTV_TVNORMS)
1039 return -EINVAL; 1278 return -EINVAL;
1040 1279
1041 btv->tvnorm = norm;
1042 tvnorm = &bttv_tvnorms[norm]; 1280 tvnorm = &bttv_tvnorms[norm];
1043 1281
1282 if (btv->tvnorm < 0 ||
1283 btv->tvnorm >= BTTV_TVNORMS ||
1284 0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1285 &tvnorm->cropcap,
1286 sizeof (tvnorm->cropcap))) {
1287 bttv_crop_reset(&btv->crop[0], norm);
1288 btv->crop[1] = btv->crop[0]; /* current = default */
1289
1290 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1291 btv->crop_start = tvnorm->cropcap.bounds.top
1292 + tvnorm->cropcap.bounds.height;
1293 }
1294 }
1295
1296 btv->tvnorm = norm;
1297
1044 btwrite(tvnorm->adelay, BT848_ADELAY); 1298 btwrite(tvnorm->adelay, BT848_ADELAY);
1045 btwrite(tvnorm->bdelay, BT848_BDELAY); 1299 btwrite(tvnorm->bdelay, BT848_BDELAY);
1046 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH), 1300 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
@@ -1057,6 +1311,7 @@ set_tvnorm(struct bttv *btv, unsigned int norm)
1057 return 0; 1311 return 0;
1058} 1312}
1059 1313
1314/* Call with btv->lock down. */
1060static void 1315static void
1061set_input(struct bttv *btv, unsigned int input) 1316set_input(struct bttv *btv, unsigned int input)
1062{ 1317{
@@ -1459,13 +1714,13 @@ bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1459 btv->loop_irq |= 1; 1714 btv->loop_irq |= 1;
1460 bttv_set_dma(btv, 0x03); 1715 bttv_set_dma(btv, 0x03);
1461 spin_unlock_irqrestore(&btv->s_lock,flags); 1716 spin_unlock_irqrestore(&btv->s_lock,flags);
1462 if (NULL == new)
1463 free_btres(btv,fh,RESOURCE_OVERLAY);
1464 if (NULL != old) { 1717 if (NULL != old) {
1465 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state); 1718 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1466 bttv_dma_free(&fh->cap,btv, old); 1719 bttv_dma_free(&fh->cap,btv, old);
1467 kfree(old); 1720 kfree(old);
1468 } 1721 }
1722 if (NULL == new)
1723 free_btres(btv,fh,RESOURCE_OVERLAY);
1469 dprintk("switch_overlay: done\n"); 1724 dprintk("switch_overlay: done\n");
1470 return retval; 1725 return retval;
1471} 1726}
@@ -1479,7 +1734,10 @@ static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1479 unsigned int width, unsigned int height, 1734 unsigned int width, unsigned int height,
1480 enum v4l2_field field) 1735 enum v4l2_field field)
1481{ 1736{
1737 struct bttv_fh *fh = q->priv_data;
1482 int redo_dma_risc = 0; 1738 int redo_dma_risc = 0;
1739 struct bttv_crop c;
1740 int norm;
1483 int rc; 1741 int rc;
1484 1742
1485 /* check settings */ 1743 /* check settings */
@@ -1491,12 +1749,52 @@ static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1491 if (width*height > buf->vb.bsize) 1749 if (width*height > buf->vb.bsize)
1492 return -EINVAL; 1750 return -EINVAL;
1493 buf->vb.size = buf->vb.bsize; 1751 buf->vb.size = buf->vb.bsize;
1752
1753 /* Make sure tvnorm and vbi_end remain consistent
1754 until we're done. */
1755 mutex_lock(&btv->lock);
1756
1757 norm = btv->tvnorm;
1758
1759 /* In this mode capturing always starts at defrect.top
1760 (default VDELAY), ignoring cropping parameters. */
1761 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1762 mutex_unlock(&btv->lock);
1763 return -EINVAL;
1764 }
1765
1766 mutex_unlock(&btv->lock);
1767
1768 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1494 } else { 1769 } else {
1495 if (width < 48 || 1770 mutex_lock(&btv->lock);
1496 height < 32 || 1771
1497 width > bttv_tvnorms[btv->tvnorm].swidth || 1772 norm = btv->tvnorm;
1498 height > bttv_tvnorms[btv->tvnorm].sheight) 1773 c = btv->crop[!!fh->do_crop];
1774
1775 mutex_unlock(&btv->lock);
1776
1777 if (width < c.min_scaled_width ||
1778 width > c.max_scaled_width ||
1779 height < c.min_scaled_height)
1499 return -EINVAL; 1780 return -EINVAL;
1781
1782 switch (field) {
1783 case V4L2_FIELD_TOP:
1784 case V4L2_FIELD_BOTTOM:
1785 case V4L2_FIELD_ALTERNATE:
1786 /* btv->crop counts frame lines. Max. scale
1787 factor is 16:1 for frames, 8:1 for fields. */
1788 if (height * 2 > c.max_scaled_height)
1789 return -EINVAL;
1790 break;
1791
1792 default:
1793 if (height > c.max_scaled_height)
1794 return -EINVAL;
1795 break;
1796 }
1797
1500 buf->vb.size = (width * height * fmt->depth) >> 3; 1798 buf->vb.size = (width * height * fmt->depth) >> 3;
1501 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 1799 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1502 return -EINVAL; 1800 return -EINVAL;
@@ -1505,12 +1803,17 @@ static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1505 /* alloc + fill struct bttv_buffer (if changed) */ 1803 /* alloc + fill struct bttv_buffer (if changed) */
1506 if (buf->vb.width != width || buf->vb.height != height || 1804 if (buf->vb.width != width || buf->vb.height != height ||
1507 buf->vb.field != field || 1805 buf->vb.field != field ||
1508 buf->tvnorm != btv->tvnorm || buf->fmt != fmt) { 1806 buf->tvnorm != norm || buf->fmt != fmt ||
1807 buf->crop.top != c.rect.top ||
1808 buf->crop.left != c.rect.left ||
1809 buf->crop.width != c.rect.width ||
1810 buf->crop.height != c.rect.height) {
1509 buf->vb.width = width; 1811 buf->vb.width = width;
1510 buf->vb.height = height; 1812 buf->vb.height = height;
1511 buf->vb.field = field; 1813 buf->vb.field = field;
1512 buf->tvnorm = btv->tvnorm; 1814 buf->tvnorm = norm;
1513 buf->fmt = fmt; 1815 buf->fmt = fmt;
1816 buf->crop = c.rect;
1514 redo_dma_risc = 1; 1817 redo_dma_risc = 1;
1515 } 1818 }
1516 1819
@@ -1939,11 +2242,179 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
1939 return 0; 2242 return 0;
1940} 2243}
1941 2244
1942static int verify_window(const struct bttv_tvnorm *tvn, 2245/* Given cropping boundaries b and the scaled width and height of a
1943 struct v4l2_window *win, int fixup) 2246 single field or frame, which must not exceed hardware limits, this
2247 function adjusts the cropping parameters c. */
2248static void
2249bttv_crop_adjust (struct bttv_crop * c,
2250 const struct v4l2_rect * b,
2251 __s32 width,
2252 __s32 height,
2253 enum v4l2_field field)
2254{
2255 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2256 __s32 max_left;
2257 __s32 max_top;
2258
2259 if (width < c->min_scaled_width) {
2260 /* Max. hor. scale factor 16:1. */
2261 c->rect.width = width * 16;
2262 } else if (width > c->max_scaled_width) {
2263 /* Min. hor. scale factor 1:1. */
2264 c->rect.width = width;
2265
2266 max_left = b->left + b->width - width;
2267 max_left = min(max_left, (__s32) MAX_HDELAY);
2268 if (c->rect.left > max_left)
2269 c->rect.left = max_left;
2270 }
2271
2272 if (height < c->min_scaled_height) {
2273 /* Max. vert. scale factor 16:1, single fields 8:1. */
2274 c->rect.height = height * 16;
2275 } else if (frame_height > c->max_scaled_height) {
2276 /* Min. vert. scale factor 1:1.
2277 Top and height count field lines times two. */
2278 c->rect.height = (frame_height + 1) & ~1;
2279
2280 max_top = b->top + b->height - c->rect.height;
2281 if (c->rect.top > max_top)
2282 c->rect.top = max_top;
2283 }
2284
2285 bttv_crop_calc_limits(c);
2286}
2287
2288/* Returns an error if scaling to a frame or single field with the given
2289 width and height is not possible with the current cropping parameters
2290 and width aligned according to width_mask. If adjust_size is TRUE the
2291 function may adjust the width and/or height instead, rounding width
2292 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2293 also adjust the current cropping parameters to get closer to the
2294 desired image size. */
2295static int
2296limit_scaled_size (struct bttv_fh * fh,
2297 __s32 * width,
2298 __s32 * height,
2299 enum v4l2_field field,
2300 unsigned int width_mask,
2301 unsigned int width_bias,
2302 int adjust_size,
2303 int adjust_crop)
2304{
2305 struct bttv *btv = fh->btv;
2306 const struct v4l2_rect *b;
2307 struct bttv_crop *c;
2308 __s32 min_width;
2309 __s32 min_height;
2310 __s32 max_width;
2311 __s32 max_height;
2312 int rc;
2313
2314 BUG_ON((int) width_mask >= 0 ||
2315 width_bias >= (unsigned int) -width_mask);
2316
2317 /* Make sure tvnorm, vbi_end and the current cropping parameters
2318 remain consistent until we're done. */
2319 mutex_lock(&btv->lock);
2320
2321 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2322
2323 /* Do crop - use current, don't - use default parameters. */
2324 c = &btv->crop[!!fh->do_crop];
2325
2326 if (fh->do_crop
2327 && adjust_size
2328 && adjust_crop
2329 && !locked_btres(btv, VIDEO_RESOURCES)) {
2330 min_width = 48;
2331 min_height = 32;
2332
2333 /* We cannot scale up. When the scaled image is larger
2334 than crop.rect we adjust the crop.rect as required
2335 by the V4L2 spec, hence cropcap.bounds are our limit. */
2336 max_width = min(b->width, (__s32) MAX_HACTIVE);
2337 max_height = b->height;
2338
2339 /* We cannot capture the same line as video and VBI data.
2340 Note btv->vbi_end is really a minimum, see
2341 bttv_vbi_try_fmt(). */
2342 if (btv->vbi_end > b->top) {
2343 max_height -= btv->vbi_end - b->top;
2344 rc = -EBUSY;
2345 if (min_height > max_height)
2346 goto fail;
2347 }
2348 } else {
2349 rc = -EBUSY;
2350 if (btv->vbi_end > c->rect.top)
2351 goto fail;
2352
2353 min_width = c->min_scaled_width;
2354 min_height = c->min_scaled_height;
2355 max_width = c->max_scaled_width;
2356 max_height = c->max_scaled_height;
2357
2358 adjust_crop = 0;
2359 }
2360
2361 min_width = (min_width - width_mask - 1) & width_mask;
2362 max_width = max_width & width_mask;
2363
2364 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2365 min_height = min_height;
2366 /* Min. scale factor is 1:1. */
2367 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2368
2369 if (adjust_size) {
2370 *width = clamp(*width, min_width, max_width);
2371 *height = clamp(*height, min_height, max_height);
2372
2373 /* Round after clamping to avoid overflow. */
2374 *width = (*width + width_bias) & width_mask;
2375
2376 if (adjust_crop) {
2377 bttv_crop_adjust(c, b, *width, *height, field);
2378
2379 if (btv->vbi_end > c->rect.top) {
2380 /* Move the crop window out of the way. */
2381 c->rect.top = btv->vbi_end;
2382 }
2383 }
2384 } else {
2385 rc = -EINVAL;
2386 if (*width < min_width ||
2387 *height < min_height ||
2388 *width > max_width ||
2389 *height > max_height ||
2390 0 != (*width & ~width_mask))
2391 goto fail;
2392 }
2393
2394 rc = 0; /* success */
2395
2396 fail:
2397 mutex_unlock(&btv->lock);
2398
2399 return rc;
2400}
2401
2402/* Returns an error if the given overlay window dimensions are not
2403 possible with the current cropping parameters. If adjust_size is
2404 TRUE the function may adjust the window width and/or height
2405 instead, however it always rounds the horizontal position and
2406 width as btcx_align() does. If adjust_crop is TRUE the function
2407 may also adjust the current cropping parameters to get closer
2408 to the desired window size. */
2409static int
2410verify_window (struct bttv_fh * fh,
2411 struct v4l2_window * win,
2412 int adjust_size,
2413 int adjust_crop)
1944{ 2414{
1945 enum v4l2_field field; 2415 enum v4l2_field field;
1946 int maxw, maxh; 2416 unsigned int width_mask;
2417 int rc;
1947 2418
1948 if (win->w.width < 48 || win->w.height < 32) 2419 if (win->w.width < 48 || win->w.height < 32)
1949 return -EINVAL; 2420 return -EINVAL;
@@ -1951,32 +2422,52 @@ static int verify_window(const struct bttv_tvnorm *tvn,
1951 return -EINVAL; 2422 return -EINVAL;
1952 2423
1953 field = win->field; 2424 field = win->field;
1954 maxw = tvn->swidth;
1955 maxh = tvn->sheight;
1956 2425
1957 if (V4L2_FIELD_ANY == field) { 2426 if (V4L2_FIELD_ANY == field) {
1958 field = (win->w.height > maxh/2) 2427 __s32 height2;
2428
2429 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2430 field = (win->w.height > height2)
1959 ? V4L2_FIELD_INTERLACED 2431 ? V4L2_FIELD_INTERLACED
1960 : V4L2_FIELD_TOP; 2432 : V4L2_FIELD_TOP;
1961 } 2433 }
1962 switch (field) { 2434 switch (field) {
1963 case V4L2_FIELD_TOP: 2435 case V4L2_FIELD_TOP:
1964 case V4L2_FIELD_BOTTOM: 2436 case V4L2_FIELD_BOTTOM:
1965 maxh = maxh / 2;
1966 break;
1967 case V4L2_FIELD_INTERLACED: 2437 case V4L2_FIELD_INTERLACED:
1968 break; 2438 break;
1969 default: 2439 default:
1970 return -EINVAL; 2440 return -EINVAL;
1971 } 2441 }
1972 2442
1973 if (!fixup && (win->w.width > maxw || win->w.height > maxh)) 2443 /* 4-byte alignment. */
2444 if (NULL == fh->ovfmt)
1974 return -EINVAL; 2445 return -EINVAL;
2446 width_mask = ~0;
2447 switch (fh->ovfmt->depth) {
2448 case 8:
2449 case 24:
2450 width_mask = ~3;
2451 break;
2452 case 16:
2453 width_mask = ~1;
2454 break;
2455 case 32:
2456 break;
2457 default:
2458 BUG();
2459 }
2460
2461 win->w.width -= win->w.left & ~width_mask;
2462 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2463
2464 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2465 field, width_mask,
2466 /* width_bias: round down */ 0,
2467 adjust_size, adjust_crop);
2468 if (0 != rc)
2469 return rc;
1975 2470
1976 if (win->w.width > maxw)
1977 win->w.width = maxw;
1978 if (win->w.height > maxh)
1979 win->w.height = maxh;
1980 win->field = field; 2471 win->field = field;
1981 return 0; 2472 return 0;
1982} 2473}
@@ -1991,7 +2482,9 @@ static int setup_window(struct bttv_fh *fh, struct bttv *btv,
1991 return -EINVAL; 2482 return -EINVAL;
1992 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED)) 2483 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
1993 return -EINVAL; 2484 return -EINVAL;
1994 retval = verify_window(&bttv_tvnorms[btv->tvnorm],win,fixup); 2485 retval = verify_window(fh, win,
2486 /* adjust_size */ fixup,
2487 /* adjust_crop */ fixup);
1995 if (0 != retval) 2488 if (0 != retval)
1996 return retval; 2489 return retval;
1997 2490
@@ -2048,6 +2541,7 @@ static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2048 struct bttv_buffer *new; 2541 struct bttv_buffer *new;
2049 2542
2050 new = videobuf_alloc(sizeof(*new)); 2543 new = videobuf_alloc(sizeof(*new));
2544 new->crop = btv->crop[!!fh->do_crop].rect;
2051 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 2545 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2052 retval = bttv_switch_overlay(btv,fh,new); 2546 retval = bttv_switch_overlay(btv,fh,new);
2053 } 2547 }
@@ -2080,7 +2574,7 @@ static int bttv_resource(struct bttv_fh *fh)
2080 2574
2081 switch (fh->type) { 2575 switch (fh->type) {
2082 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2576 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2083 res = RESOURCE_VIDEO; 2577 res = RESOURCE_VIDEO_STREAM;
2084 break; 2578 break;
2085 case V4L2_BUF_TYPE_VBI_CAPTURE: 2579 case V4L2_BUF_TYPE_VBI_CAPTURE:
2086 res = RESOURCE_VBI; 2580 res = RESOURCE_VBI;
@@ -2138,7 +2632,7 @@ static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
2138 f->fmt.win.field = fh->ov.field; 2632 f->fmt.win.field = fh->ov.field;
2139 return 0; 2633 return 0;
2140 case V4L2_BUF_TYPE_VBI_CAPTURE: 2634 case V4L2_BUF_TYPE_VBI_CAPTURE:
2141 bttv_vbi_get_fmt(fh,f); 2635 bttv_vbi_get_fmt(fh, &f->fmt.vbi);
2142 return 0; 2636 return 0;
2143 default: 2637 default:
2144 return -EINVAL; 2638 return -EINVAL;
@@ -2146,35 +2640,35 @@ static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
2146} 2640}
2147 2641
2148static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv, 2642static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
2149 struct v4l2_format *f) 2643 struct v4l2_format *f, int adjust_crop)
2150{ 2644{
2151 switch (f->type) { 2645 switch (f->type) {
2152 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 2646 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2153 { 2647 {
2154 const struct bttv_format *fmt; 2648 const struct bttv_format *fmt;
2155 enum v4l2_field field; 2649 enum v4l2_field field;
2156 unsigned int maxw,maxh; 2650 __s32 width, height;
2651 int rc;
2157 2652
2158 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2653 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2159 if (NULL == fmt) 2654 if (NULL == fmt)
2160 return -EINVAL; 2655 return -EINVAL;
2161 2656
2162 /* fixup format */
2163 maxw = bttv_tvnorms[btv->tvnorm].swidth;
2164 maxh = bttv_tvnorms[btv->tvnorm].sheight;
2165 field = f->fmt.pix.field; 2657 field = f->fmt.pix.field;
2166 if (V4L2_FIELD_ANY == field) 2658 if (V4L2_FIELD_ANY == field) {
2167 field = (f->fmt.pix.height > maxh/2) 2659 __s32 height2;
2660
2661 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2662 field = (f->fmt.pix.height > height2)
2168 ? V4L2_FIELD_INTERLACED 2663 ? V4L2_FIELD_INTERLACED
2169 : V4L2_FIELD_BOTTOM; 2664 : V4L2_FIELD_BOTTOM;
2665 }
2170 if (V4L2_FIELD_SEQ_BT == field) 2666 if (V4L2_FIELD_SEQ_BT == field)
2171 field = V4L2_FIELD_SEQ_TB; 2667 field = V4L2_FIELD_SEQ_TB;
2172 switch (field) { 2668 switch (field) {
2173 case V4L2_FIELD_TOP: 2669 case V4L2_FIELD_TOP:
2174 case V4L2_FIELD_BOTTOM: 2670 case V4L2_FIELD_BOTTOM:
2175 case V4L2_FIELD_ALTERNATE: 2671 case V4L2_FIELD_ALTERNATE:
2176 maxh = maxh/2;
2177 break;
2178 case V4L2_FIELD_INTERLACED: 2672 case V4L2_FIELD_INTERLACED:
2179 break; 2673 break;
2180 case V4L2_FIELD_SEQ_TB: 2674 case V4L2_FIELD_SEQ_TB:
@@ -2185,28 +2679,29 @@ static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
2185 return -EINVAL; 2679 return -EINVAL;
2186 } 2680 }
2187 2681
2682 width = f->fmt.pix.width;
2683 height = f->fmt.pix.height;
2684
2685 rc = limit_scaled_size(fh, &width, &height, field,
2686 /* width_mask: 4 pixels */ ~3,
2687 /* width_bias: nearest */ 2,
2688 /* adjust_size */ 1,
2689 adjust_crop);
2690 if (0 != rc)
2691 return rc;
2692
2188 /* update data for the application */ 2693 /* update data for the application */
2189 f->fmt.pix.field = field; 2694 f->fmt.pix.field = field;
2190 if (f->fmt.pix.width < 48) 2695 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2191 f->fmt.pix.width = 48;
2192 if (f->fmt.pix.height < 32)
2193 f->fmt.pix.height = 32;
2194 if (f->fmt.pix.width > maxw)
2195 f->fmt.pix.width = maxw;
2196 if (f->fmt.pix.height > maxh)
2197 f->fmt.pix.height = maxh;
2198 pix_format_set_size (&f->fmt.pix, fmt,
2199 f->fmt.pix.width & ~3,
2200 f->fmt.pix.height);
2201 2696
2202 return 0; 2697 return 0;
2203 } 2698 }
2204 case V4L2_BUF_TYPE_VIDEO_OVERLAY: 2699 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2205 return verify_window(&bttv_tvnorms[btv->tvnorm], 2700 return verify_window(fh, &f->fmt.win,
2206 &f->fmt.win, 1); 2701 /* adjust_size */ 1,
2702 /* adjust_crop */ 0);
2207 case V4L2_BUF_TYPE_VBI_CAPTURE: 2703 case V4L2_BUF_TYPE_VBI_CAPTURE:
2208 bttv_vbi_try_fmt(fh,f); 2704 return bttv_vbi_try_fmt(fh, &f->fmt.vbi);
2209 return 0;
2210 default: 2705 default:
2211 return -EINVAL; 2706 return -EINVAL;
2212 } 2707 }
@@ -2225,7 +2720,7 @@ static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv,
2225 retval = bttv_switch_type(fh,f->type); 2720 retval = bttv_switch_type(fh,f->type);
2226 if (0 != retval) 2721 if (0 != retval)
2227 return retval; 2722 return retval;
2228 retval = bttv_try_fmt(fh,btv,f); 2723 retval = bttv_try_fmt(fh,btv,f, /* adjust_crop */ 1);
2229 if (0 != retval) 2724 if (0 != retval)
2230 return retval; 2725 return retval;
2231 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 2726 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
@@ -2254,12 +2749,7 @@ static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv,
2254 retval = bttv_switch_type(fh,f->type); 2749 retval = bttv_switch_type(fh,f->type);
2255 if (0 != retval) 2750 if (0 != retval)
2256 return retval; 2751 return retval;
2257 if (locked_btres(fh->btv, RESOURCE_VBI)) 2752 return bttv_vbi_set_fmt(fh, &f->fmt.vbi);
2258 return -EBUSY;
2259 bttv_vbi_try_fmt(fh,f);
2260 bttv_vbi_setlines(fh,btv,f->fmt.vbi.count[0]);
2261 bttv_vbi_get_fmt(fh,f);
2262 return 0;
2263 default: 2753 default:
2264 return -EINVAL; 2754 return -EINVAL;
2265 } 2755 }
@@ -2517,6 +3007,7 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2517 if (*on) { 3007 if (*on) {
2518 fh->ov.tvnorm = btv->tvnorm; 3008 fh->ov.tvnorm = btv->tvnorm;
2519 new = videobuf_alloc(sizeof(*new)); 3009 new = videobuf_alloc(sizeof(*new));
3010 new->crop = btv->crop[!!fh->do_crop].rect;
2520 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); 3011 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2521 } else { 3012 } else {
2522 new = NULL; 3013 new = NULL;
@@ -2551,10 +3042,16 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2551 struct video_mmap *vm = arg; 3042 struct video_mmap *vm = arg;
2552 struct bttv_buffer *buf; 3043 struct bttv_buffer *buf;
2553 enum v4l2_field field; 3044 enum v4l2_field field;
3045 __s32 height2;
3046 int res;
2554 3047
2555 if (vm->frame >= VIDEO_MAX_FRAME) 3048 if (vm->frame >= VIDEO_MAX_FRAME)
2556 return -EINVAL; 3049 return -EINVAL;
2557 3050
3051 res = bttv_resource(fh);
3052 if (!check_alloc_btres(btv, fh, res))
3053 return -EBUSY;
3054
2558 mutex_lock(&fh->cap.lock); 3055 mutex_lock(&fh->cap.lock);
2559 retval = -EINVAL; 3056 retval = -EINVAL;
2560 buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame]; 3057 buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame];
@@ -2566,7 +3063,8 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2566 buf->vb.state == STATE_ACTIVE) 3063 buf->vb.state == STATE_ACTIVE)
2567 goto fh_unlock_and_return; 3064 goto fh_unlock_and_return;
2568 3065
2569 field = (vm->height > bttv_tvnorms[btv->tvnorm].sheight/2) 3066 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
3067 field = (vm->height > height2)
2570 ? V4L2_FIELD_INTERLACED 3068 ? V4L2_FIELD_INTERLACED
2571 : V4L2_FIELD_BOTTOM; 3069 : V4L2_FIELD_BOTTOM;
2572 retval = bttv_prepare_buffer(&fh->cap,btv,buf, 3070 retval = bttv_prepare_buffer(&fh->cap,btv,buf,
@@ -2613,54 +3111,17 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2613 } 3111 }
2614 3112
2615 case VIDIOCGVBIFMT: 3113 case VIDIOCGVBIFMT:
2616 {
2617 struct vbi_format *fmt = (void *) arg;
2618 struct v4l2_format fmt2;
2619
2620 if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) { 3114 if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) {
2621 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); 3115 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2622 if (0 != retval) 3116 if (0 != retval)
2623 return retval; 3117 return retval;
2624 } 3118 }
2625 bttv_vbi_get_fmt(fh, &fmt2);
2626
2627 memset(fmt,0,sizeof(*fmt));
2628 fmt->sampling_rate = fmt2.fmt.vbi.sampling_rate;
2629 fmt->samples_per_line = fmt2.fmt.vbi.samples_per_line;
2630 fmt->sample_format = VIDEO_PALETTE_RAW;
2631 fmt->start[0] = fmt2.fmt.vbi.start[0];
2632 fmt->count[0] = fmt2.fmt.vbi.count[0];
2633 fmt->start[1] = fmt2.fmt.vbi.start[1];
2634 fmt->count[1] = fmt2.fmt.vbi.count[1];
2635 if (fmt2.fmt.vbi.flags & V4L2_VBI_UNSYNC)
2636 fmt->flags |= VBI_UNSYNC;
2637 if (fmt2.fmt.vbi.flags & V4L2_VBI_INTERLACED)
2638 fmt->flags |= VBI_INTERLACED;
2639 return 0;
2640 }
2641 case VIDIOCSVBIFMT:
2642 {
2643 struct vbi_format *fmt = (void *) arg;
2644 struct v4l2_format fmt2;
2645 3119
2646 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); 3120 /* fall through */
2647 if (0 != retval)
2648 return retval;
2649 bttv_vbi_get_fmt(fh, &fmt2);
2650
2651 if (fmt->sampling_rate != fmt2.fmt.vbi.sampling_rate ||
2652 fmt->samples_per_line != fmt2.fmt.vbi.samples_per_line ||
2653 fmt->sample_format != VIDEO_PALETTE_RAW ||
2654 fmt->start[0] != fmt2.fmt.vbi.start[0] ||
2655 fmt->start[1] != fmt2.fmt.vbi.start[1] ||
2656 fmt->count[0] != fmt->count[1] ||
2657 fmt->count[0] < 1 ||
2658 fmt->count[0] > 32 /* VBI_MAXLINES */)
2659 return -EINVAL;
2660 3121
2661 bttv_vbi_setlines(fh,btv,fmt->count[0]); 3122 case VIDIOCSVBIFMT:
2662 return 0; 3123 return v4l_compat_translate_ioctl(inode, file, cmd,
2663 } 3124 arg, bttv_do_ioctl);
2664 3125
2665 case BTTV_VERSION: 3126 case BTTV_VERSION:
2666 case VIDIOCGFREQ: 3127 case VIDIOCGFREQ:
@@ -2753,7 +3214,7 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2753 case VIDIOC_TRY_FMT: 3214 case VIDIOC_TRY_FMT:
2754 { 3215 {
2755 struct v4l2_format *f = arg; 3216 struct v4l2_format *f = arg;
2756 return bttv_try_fmt(fh,btv,f); 3217 return bttv_try_fmt(fh,btv,f, /* adjust_crop */ 0);
2757 } 3218 }
2758 case VIDIOC_G_FMT: 3219 case VIDIOC_G_FMT:
2759 { 3220 {
@@ -2792,16 +3253,23 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2792 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED)) 3253 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2793 return -EINVAL; 3254 return -EINVAL;
2794 3255
2795 mutex_lock(&fh->cap.lock);
2796 retval = -EINVAL; 3256 retval = -EINVAL;
2797 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { 3257 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2798 if (fb->fmt.width > bttv_tvnorms[btv->tvnorm].swidth) 3258 __s32 width = fb->fmt.width;
2799 goto fh_unlock_and_return; 3259 __s32 height = fb->fmt.height;
2800 if (fb->fmt.height > bttv_tvnorms[btv->tvnorm].sheight) 3260
2801 goto fh_unlock_and_return; 3261 retval = limit_scaled_size(fh, &width, &height,
3262 V4L2_FIELD_INTERLACED,
3263 /* width_mask */ ~3,
3264 /* width_bias */ 2,
3265 /* adjust_size */ 0,
3266 /* adjust_crop */ 0);
3267 if (0 != retval)
3268 return retval;
2802 } 3269 }
2803 3270
2804 /* ok, accept it */ 3271 /* ok, accept it */
3272 mutex_lock(&fh->cap.lock);
2805 btv->fbuf.base = fb->base; 3273 btv->fbuf.base = fb->base;
2806 btv->fbuf.fmt.width = fb->fmt.width; 3274 btv->fbuf.fmt.width = fb->fmt.width;
2807 btv->fbuf.fmt.height = fb->fmt.height; 3275 btv->fbuf.fmt.height = fb->fmt.height;
@@ -2828,6 +3296,7 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2828 struct bttv_buffer *new; 3296 struct bttv_buffer *new;
2829 3297
2830 new = videobuf_alloc(sizeof(*new)); 3298 new = videobuf_alloc(sizeof(*new));
3299 new->crop = btv->crop[!!fh->do_crop].rect;
2831 bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new); 3300 bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new);
2832 retval = bttv_switch_overlay(btv,fh,new); 3301 retval = bttv_switch_overlay(btv,fh,new);
2833 } 3302 }
@@ -2843,7 +3312,13 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2843 return videobuf_querybuf(bttv_queue(fh),arg); 3312 return videobuf_querybuf(bttv_queue(fh),arg);
2844 3313
2845 case VIDIOC_QBUF: 3314 case VIDIOC_QBUF:
3315 {
3316 int res = bttv_resource(fh);
3317
3318 if (!check_alloc_btres(btv, fh, res))
3319 return -EBUSY;
2846 return videobuf_qbuf(bttv_queue(fh),arg); 3320 return videobuf_qbuf(bttv_queue(fh),arg);
3321 }
2847 3322
2848 case VIDIOC_DQBUF: 3323 case VIDIOC_DQBUF:
2849 return videobuf_dqbuf(bttv_queue(fh),arg, 3324 return videobuf_dqbuf(bttv_queue(fh),arg,
@@ -2942,6 +3417,122 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2942 return v4l2_prio_change(&btv->prio, &fh->prio, *prio); 3417 return v4l2_prio_change(&btv->prio, &fh->prio, *prio);
2943 } 3418 }
2944 3419
3420 case VIDIOC_CROPCAP:
3421 {
3422 struct v4l2_cropcap *cap = arg;
3423 enum v4l2_buf_type type;
3424
3425 type = cap->type;
3426
3427 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3428 type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3429 return -EINVAL;
3430
3431 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
3432 cap->type = type;
3433
3434 return 0;
3435 }
3436 case VIDIOC_G_CROP:
3437 {
3438 struct v4l2_crop * crop = arg;
3439
3440 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3441 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3442 return -EINVAL;
3443
3444 /* No fh->do_crop = 1; because btv->crop[1] may be
3445 inconsistent with fh->width or fh->height and apps
3446 do not expect a change here. */
3447
3448 crop->c = btv->crop[!!fh->do_crop].rect;
3449
3450 return 0;
3451 }
3452 case VIDIOC_S_CROP:
3453 {
3454 struct v4l2_crop *crop = arg;
3455 const struct v4l2_rect *b;
3456 struct bttv_crop c;
3457 __s32 b_left;
3458 __s32 b_top;
3459 __s32 b_right;
3460 __s32 b_bottom;
3461
3462 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3463 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3464 return -EINVAL;
3465
3466 retval = v4l2_prio_check(&btv->prio,&fh->prio);
3467 if (0 != retval)
3468 return retval;
3469
3470 /* Make sure tvnorm, vbi_end and the current cropping
3471 parameters remain consistent until we're done. Note
3472 read() may change vbi_end in check_alloc_btres(). */
3473 mutex_lock(&btv->lock);
3474
3475 retval = -EBUSY;
3476
3477 if (locked_btres(fh->btv, VIDEO_RESOURCES))
3478 goto btv_unlock_and_return;
3479
3480 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3481
3482 b_left = b->left;
3483 b_right = b_left + b->width;
3484 b_bottom = b->top + b->height;
3485
3486 b_top = max(b->top, btv->vbi_end);
3487 if (b_top + 32 >= b_bottom)
3488 goto btv_unlock_and_return;
3489
3490 /* Min. scaled size 48 x 32. */
3491 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3492 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3493
3494 c.rect.width = clamp(crop->c.width,
3495 48, b_right - c.rect.left);
3496
3497 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3498 /* Top and height must be a multiple of two. */
3499 c.rect.top = (c.rect.top + 1) & ~1;
3500
3501 c.rect.height = clamp(crop->c.height,
3502 32, b_bottom - c.rect.top);
3503 c.rect.height = (c.rect.height + 1) & ~1;
3504
3505 bttv_crop_calc_limits(&c);
3506
3507 btv->crop[1] = c;
3508
3509 mutex_unlock(&btv->lock);
3510
3511 fh->do_crop = 1;
3512
3513 mutex_lock(&fh->cap.lock);
3514
3515 if (fh->width < c.min_scaled_width) {
3516 fh->width = c.min_scaled_width;
3517 btv->init.width = c.min_scaled_width;
3518 } else if (fh->width > c.max_scaled_width) {
3519 fh->width = c.max_scaled_width;
3520 btv->init.width = c.max_scaled_width;
3521 }
3522
3523 if (fh->height < c.min_scaled_height) {
3524 fh->height = c.min_scaled_height;
3525 btv->init.height = c.min_scaled_height;
3526 } else if (fh->height > c.max_scaled_height) {
3527 fh->height = c.max_scaled_height;
3528 btv->init.height = c.max_scaled_height;
3529 }
3530
3531 mutex_unlock(&fh->cap.lock);
3532
3533 return 0;
3534 }
3535
2945 case VIDIOC_ENUMSTD: 3536 case VIDIOC_ENUMSTD:
2946 case VIDIOC_G_STD: 3537 case VIDIOC_G_STD:
2947 case VIDIOC_S_STD: 3538 case VIDIOC_S_STD:
@@ -2963,6 +3554,10 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
2963 fh_unlock_and_return: 3554 fh_unlock_and_return:
2964 mutex_unlock(&fh->cap.lock); 3555 mutex_unlock(&fh->cap.lock);
2965 return retval; 3556 return retval;
3557
3558 btv_unlock_and_return:
3559 mutex_unlock(&btv->lock);
3560 return retval;
2966} 3561}
2967 3562
2968static int bttv_ioctl(struct inode *inode, struct file *file, 3563static int bttv_ioctl(struct inode *inode, struct file *file,
@@ -2972,8 +3567,26 @@ static int bttv_ioctl(struct inode *inode, struct file *file,
2972 3567
2973 switch (cmd) { 3568 switch (cmd) {
2974 case BTTV_VBISIZE: 3569 case BTTV_VBISIZE:
3570 {
3571 const struct bttv_tvnorm *tvnorm;
3572
3573 tvnorm = fh->vbi_fmt.tvnorm;
3574
3575 if (fh->vbi_fmt.fmt.start[0] != tvnorm->vbistart[0] ||
3576 fh->vbi_fmt.fmt.start[1] != tvnorm->vbistart[1] ||
3577 fh->vbi_fmt.fmt.count[0] != fh->vbi_fmt.fmt.count[1]) {
3578 /* BTTV_VBISIZE cannot express these parameters,
3579 however open() resets the paramters to defaults
3580 and apps shouldn't call BTTV_VBISIZE after
3581 VIDIOC_S_FMT. */
3582 return -EINVAL;
3583 }
3584
2975 bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); 3585 bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2976 return fh->lines * 2 * 2048; 3586 return (fh->vbi_fmt.fmt.count[0] * 2
3587 * fh->vbi_fmt.fmt.samples_per_line);
3588 }
3589
2977 default: 3590 default:
2978 return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl); 3591 return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl);
2979 } 3592 }
@@ -2992,10 +3605,14 @@ static ssize_t bttv_read(struct file *file, char __user *data,
2992 3605
2993 switch (fh->type) { 3606 switch (fh->type) {
2994 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 3607 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2995 if (locked_btres(fh->btv,RESOURCE_VIDEO)) 3608 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3609 /* VIDEO_READ in use by another fh,
3610 or VIDEO_STREAM by any fh. */
2996 return -EBUSY; 3611 return -EBUSY;
3612 }
2997 retval = videobuf_read_one(&fh->cap, data, count, ppos, 3613 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2998 file->f_flags & O_NONBLOCK); 3614 file->f_flags & O_NONBLOCK);
3615 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
2999 break; 3616 break;
3000 case V4L2_BUF_TYPE_VBI_CAPTURE: 3617 case V4L2_BUF_TYPE_VBI_CAPTURE:
3001 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI)) 3618 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
@@ -3021,7 +3638,7 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
3021 return videobuf_poll_stream(file, &fh->vbi, wait); 3638 return videobuf_poll_stream(file, &fh->vbi, wait);
3022 } 3639 }
3023 3640
3024 if (check_btres(fh,RESOURCE_VIDEO)) { 3641 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3025 /* streaming capture */ 3642 /* streaming capture */
3026 if (list_empty(&fh->cap.stream)) 3643 if (list_empty(&fh->cap.stream))
3027 return POLLERR; 3644 return POLLERR;
@@ -3031,7 +3648,7 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
3031 mutex_lock(&fh->cap.lock); 3648 mutex_lock(&fh->cap.lock);
3032 if (NULL == fh->cap.read_buf) { 3649 if (NULL == fh->cap.read_buf) {
3033 /* need to capture a new frame */ 3650 /* need to capture a new frame */
3034 if (locked_btres(fh->btv,RESOURCE_VIDEO)) { 3651 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) {
3035 mutex_unlock(&fh->cap.lock); 3652 mutex_unlock(&fh->cap.lock);
3036 return POLLERR; 3653 return POLLERR;
3037 } 3654 }
@@ -3117,8 +3734,23 @@ static int bttv_open(struct inode *inode, struct file *file)
3117 i2c_vidiocschan(btv); 3734 i2c_vidiocschan(btv);
3118 3735
3119 btv->users++; 3736 btv->users++;
3120 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) 3737
3121 bttv_vbi_setlines(fh,btv,16); 3738 /* The V4L2 spec requires one global set of cropping parameters
3739 which only change on request. These are stored in btv->crop[1].
3740 However for compatibility with V4L apps and cropping unaware
3741 V4L2 apps we now reset the cropping parameters as seen through
3742 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3743 will use btv->crop[0], the default cropping parameters for the
3744 current video standard, and VIDIOC_S_FMT will not implicitely
3745 change the cropping parameters until VIDIOC_S_CROP has been
3746 called. */
3747 fh->do_crop = !reset_crop; /* module parameter */
3748
3749 /* Likewise there should be one global set of VBI capture
3750 parameters, but for compatibility with V4L apps and earlier
3751 driver versions each fh has its own parameters. */
3752 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3753
3122 bttv_field_count(btv); 3754 bttv_field_count(btv);
3123 return 0; 3755 return 0;
3124} 3756}
@@ -3133,14 +3765,17 @@ static int bttv_release(struct inode *inode, struct file *file)
3133 bttv_switch_overlay(btv,fh,NULL); 3765 bttv_switch_overlay(btv,fh,NULL);
3134 3766
3135 /* stop video capture */ 3767 /* stop video capture */
3136 if (check_btres(fh, RESOURCE_VIDEO)) { 3768 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3137 videobuf_streamoff(&fh->cap); 3769 videobuf_streamoff(&fh->cap);
3138 free_btres(btv,fh,RESOURCE_VIDEO); 3770 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3139 } 3771 }
3140 if (fh->cap.read_buf) { 3772 if (fh->cap.read_buf) {
3141 buffer_release(&fh->cap,fh->cap.read_buf); 3773 buffer_release(&fh->cap,fh->cap.read_buf);
3142 kfree(fh->cap.read_buf); 3774 kfree(fh->cap.read_buf);
3143 } 3775 }
3776 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3777 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3778 }
3144 3779
3145 /* stop vbi capture */ 3780 /* stop vbi capture */
3146 if (check_btres(fh, RESOURCE_VBI)) { 3781 if (check_btres(fh, RESOURCE_VBI)) {
@@ -3997,7 +4632,6 @@ static int __devinit bttv_probe(struct pci_dev *dev,
3997 4632
3998 /* initialize structs / fill in defaults */ 4633 /* initialize structs / fill in defaults */
3999 mutex_init(&btv->lock); 4634 mutex_init(&btv->lock);
4000 mutex_init(&btv->reslock);
4001 spin_lock_init(&btv->s_lock); 4635 spin_lock_init(&btv->s_lock);
4002 spin_lock_init(&btv->gpio_lock); 4636 spin_lock_init(&btv->gpio_lock);
4003 init_waitqueue_head(&btv->gpioq); 4637 init_waitqueue_head(&btv->gpioq);
@@ -4095,7 +4729,6 @@ static int __devinit bttv_probe(struct pci_dev *dev,
4095 btv->init.fmt = format_by_palette(VIDEO_PALETTE_RGB24); 4729 btv->init.fmt = format_by_palette(VIDEO_PALETTE_RGB24);
4096 btv->init.width = 320; 4730 btv->init.width = 320;
4097 btv->init.height = 240; 4731 btv->init.height = 240;
4098 btv->init.lines = 16;
4099 btv->input = 0; 4732 btv->input = 0;
4100 4733
4101 /* initialize hardware */ 4734 /* initialize hardware */
@@ -4130,6 +4763,10 @@ static int __devinit bttv_probe(struct pci_dev *dev,
4130 bt848_sat(btv,32768); 4763 bt848_sat(btv,32768);
4131 audio_mute(btv, 1); 4764 audio_mute(btv, 1);
4132 set_input(btv,0); 4765 set_input(btv,0);
4766 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4767 btv->crop[1] = btv->crop[0]; /* current = default */
4768 disclaim_vbi_lines(btv);
4769 disclaim_video_lines(btv);
4133 } 4770 }
4134 4771
4135 /* add subdevices */ 4772 /* add subdevices */
diff --git a/drivers/media/video/bt8xx/bttv-risc.c b/drivers/media/video/bt8xx/bttv-risc.c
index afcfe71e3792..e7104d9cb4bd 100644
--- a/drivers/media/video/bt8xx/bttv-risc.c
+++ b/drivers/media/video/bt8xx/bttv-risc.c
@@ -43,7 +43,8 @@ int
43bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc, 43bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
44 struct scatterlist *sglist, 44 struct scatterlist *sglist,
45 unsigned int offset, unsigned int bpl, 45 unsigned int offset, unsigned int bpl,
46 unsigned int padding, unsigned int lines) 46 unsigned int padding, unsigned int skip_lines,
47 unsigned int store_lines)
47{ 48{
48 u32 instructions,line,todo; 49 u32 instructions,line,todo;
49 struct scatterlist *sg; 50 struct scatterlist *sg;
@@ -54,9 +55,11 @@ bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
54 one write per scan line + sync + jump (all 2 dwords). padding 55 one write per scan line + sync + jump (all 2 dwords). padding
55 can cause next bpl to start close to a page border. First DMA 56 can cause next bpl to start close to a page border. First DMA
56 region may be smaller than PAGE_SIZE */ 57 region may be smaller than PAGE_SIZE */
57 instructions = 1 + ((bpl + padding) * lines) / PAGE_SIZE + lines; 58 instructions = skip_lines * 4;
58 instructions += 2; 59 instructions += (1 + ((bpl + padding) * store_lines)
59 if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions*8)) < 0) 60 / PAGE_SIZE + store_lines) * 8;
61 instructions += 2 * 8;
62 if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions)) < 0)
60 return rc; 63 return rc;
61 64
62 /* sync instruction */ 65 /* sync instruction */
@@ -64,11 +67,16 @@ bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
64 *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1); 67 *(rp++) = cpu_to_le32(BT848_RISC_SYNC|BT848_FIFO_STATUS_FM1);
65 *(rp++) = cpu_to_le32(0); 68 *(rp++) = cpu_to_le32(0);
66 69
70 while (skip_lines-- > 0) {
71 *(rp++) = cpu_to_le32(BT848_RISC_SKIP | BT848_RISC_SOL |
72 BT848_RISC_EOL | bpl);
73 }
74
67 /* scan lines */ 75 /* scan lines */
68 sg = sglist; 76 sg = sglist;
69 for (line = 0; line < lines; line++) { 77 for (line = 0; line < store_lines; line++) {
70 if ((btv->opt_vcr_hack) && 78 if ((btv->opt_vcr_hack) &&
71 (line >= (lines - VCR_HACK_LINES))) 79 (line >= (store_lines - VCR_HACK_LINES)))
72 continue; 80 continue;
73 while (offset && offset >= sg_dma_len(sg)) { 81 while (offset && offset >= sg_dma_len(sg)) {
74 offset -= sg_dma_len(sg); 82 offset -= sg_dma_len(sg);
@@ -130,7 +138,8 @@ bttv_risc_planar(struct bttv *btv, struct btcx_riscmem *risc,
130 /* estimate risc mem: worst case is one write per page border + 138 /* estimate risc mem: worst case is one write per page border +
131 one write per scan line (5 dwords) 139 one write per scan line (5 dwords)
132 plus sync + jump (2 dwords) */ 140 plus sync + jump (2 dwords) */
133 instructions = (ybpl * ylines * 2) / PAGE_SIZE + ylines; 141 instructions = ((3 + (ybpl + ypadding) * ylines * 2)
142 / PAGE_SIZE) + ylines;
134 instructions += 2; 143 instructions += 2;
135 if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions*4*5)) < 0) 144 if ((rc = btcx_riscmem_alloc(btv->c.pci,risc,instructions*4*5)) < 0)
136 return rc; 145 return rc;
@@ -317,10 +326,10 @@ bttv_risc_overlay(struct bttv *btv, struct btcx_riscmem *risc,
317/* ---------------------------------------------------------- */ 326/* ---------------------------------------------------------- */
318 327
319static void 328static void
320bttv_calc_geo(struct bttv *btv, struct bttv_geometry *geo, 329bttv_calc_geo_old(struct bttv *btv, struct bttv_geometry *geo,
321 int width, int height, int interleaved, int norm) 330 int width, int height, int interleaved,
331 const struct bttv_tvnorm *tvnorm)
322{ 332{
323 const struct bttv_tvnorm *tvnorm = &bttv_tvnorms[norm];
324 u32 xsf, sr; 333 u32 xsf, sr;
325 int vdelay; 334 int vdelay;
326 335
@@ -361,6 +370,62 @@ bttv_calc_geo(struct bttv *btv, struct bttv_geometry *geo,
361} 370}
362 371
363static void 372static void
373bttv_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
428static void
364bttv_apply_geo(struct bttv *btv, struct bttv_geometry *geo, int odd) 429bttv_apply_geo(struct bttv *btv, struct bttv_geometry *geo, int odd)
365{ 430{
366 int off = odd ? 0x80 : 0x00; 431 int off = odd ? 0x80 : 0x00;
@@ -522,16 +587,51 @@ int
522bttv_buffer_activate_vbi(struct bttv *btv, 587bttv_buffer_activate_vbi(struct bttv *btv,
523 struct bttv_buffer *vbi) 588 struct bttv_buffer *vbi)
524{ 589{
525 /* vbi capture */ 590 struct btcx_riscmem *top;
591 struct btcx_riscmem *bottom;
592 int top_irq_flags;
593 int bottom_irq_flags;
594
595 top = NULL;
596 bottom = NULL;
597 top_irq_flags = 0;
598 bottom_irq_flags = 0;
599
526 if (vbi) { 600 if (vbi) {
601 unsigned int crop, vdelay;
602
527 vbi->vb.state = STATE_ACTIVE; 603 vbi->vb.state = STATE_ACTIVE;
528 list_del(&vbi->vb.queue); 604 list_del(&vbi->vb.queue);
529 bttv_risc_hook(btv, RISC_SLOT_O_VBI, &vbi->top, 0); 605
530 bttv_risc_hook(btv, RISC_SLOT_E_VBI, &vbi->bottom, 4); 606 /* VDELAY is start of video, end of VBI capturing. */
531 } else { 607 crop = btread(BT848_E_CROP);
532 bttv_risc_hook(btv, RISC_SLOT_O_VBI, NULL, 0); 608 vdelay = btread(BT848_E_VDELAY_LO) + ((crop & 0xc0) << 2);
533 bttv_risc_hook(btv, RISC_SLOT_E_VBI, NULL, 0); 609
610 if (vbi->geo.vdelay > vdelay) {
611 vdelay = vbi->geo.vdelay & 0xfe;
612 crop = (crop & 0x3f) | ((vbi->geo.vdelay >> 2) & 0xc0);
613
614 btwrite(vdelay, BT848_E_VDELAY_LO);
615 btwrite(crop, BT848_E_CROP);
616 btwrite(vdelay, BT848_O_VDELAY_LO);
617 btwrite(crop, BT848_O_CROP);
618 }
619
620 if (vbi->vbi_count[0] > 0) {
621 top = &vbi->top;
622 top_irq_flags = 4;
623 }
624
625 if (vbi->vbi_count[1] > 0) {
626 top_irq_flags = 0;
627 bottom = &vbi->bottom;
628 bottom_irq_flags = 4;
629 }
534 } 630 }
631
632 bttv_risc_hook(btv, RISC_SLOT_O_VBI, top, top_irq_flags);
633 bttv_risc_hook(btv, RISC_SLOT_E_VBI, bottom, bottom_irq_flags);
634
535 return 0; 635 return 0;
536} 636}
537 637
@@ -611,28 +711,31 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
611 int bpf = bpl * (buf->vb.height >> 1); 711 int bpf = bpl * (buf->vb.height >> 1);
612 712
613 bttv_calc_geo(btv,&buf->geo,buf->vb.width,buf->vb.height, 713 bttv_calc_geo(btv,&buf->geo,buf->vb.width,buf->vb.height,
614 V4L2_FIELD_HAS_BOTH(buf->vb.field),buf->tvnorm); 714 V4L2_FIELD_HAS_BOTH(buf->vb.field),
715 tvnorm,&buf->crop);
615 716
616 switch (buf->vb.field) { 717 switch (buf->vb.field) {
617 case V4L2_FIELD_TOP: 718 case V4L2_FIELD_TOP:
618 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist, 719 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist,
619 0,bpl,0,buf->vb.height); 720 /* offset */ 0,bpl,
721 /* padding */ 0,/* skip_lines */ 0,
722 buf->vb.height);
620 break; 723 break;
621 case V4L2_FIELD_BOTTOM: 724 case V4L2_FIELD_BOTTOM:
622 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist, 725 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist,
623 0,bpl,0,buf->vb.height); 726 0,bpl,0,0,buf->vb.height);
624 break; 727 break;
625 case V4L2_FIELD_INTERLACED: 728 case V4L2_FIELD_INTERLACED:
626 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist, 729 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist,
627 0,bpl,bpl,buf->vb.height >> 1); 730 0,bpl,bpl,0,buf->vb.height >> 1);
628 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist, 731 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist,
629 bpl,bpl,bpl,buf->vb.height >> 1); 732 bpl,bpl,bpl,0,buf->vb.height >> 1);
630 break; 733 break;
631 case V4L2_FIELD_SEQ_TB: 734 case V4L2_FIELD_SEQ_TB:
632 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist, 735 bttv_risc_packed(btv,&buf->top,buf->vb.dma.sglist,
633 0,bpl,0,buf->vb.height >> 1); 736 0,bpl,0,0,buf->vb.height >> 1);
634 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist, 737 bttv_risc_packed(btv,&buf->bottom,buf->vb.dma.sglist,
635 bpf,bpl,0,buf->vb.height >> 1); 738 bpf,bpl,0,0,buf->vb.height >> 1);
636 break; 739 break;
637 default: 740 default:
638 BUG(); 741 BUG();
@@ -662,7 +765,8 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
662 switch (buf->vb.field) { 765 switch (buf->vb.field) {
663 case V4L2_FIELD_TOP: 766 case V4L2_FIELD_TOP:
664 bttv_calc_geo(btv,&buf->geo,buf->vb.width, 767 bttv_calc_geo(btv,&buf->geo,buf->vb.width,
665 buf->vb.height,0,buf->tvnorm); 768 buf->vb.height,/* both_fields */ 0,
769 tvnorm,&buf->crop);
666 bttv_risc_planar(btv, &buf->top, buf->vb.dma.sglist, 770 bttv_risc_planar(btv, &buf->top, buf->vb.dma.sglist,
667 0,buf->vb.width,0,buf->vb.height, 771 0,buf->vb.width,0,buf->vb.height,
668 uoffset,voffset,buf->fmt->hshift, 772 uoffset,voffset,buf->fmt->hshift,
@@ -670,7 +774,8 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
670 break; 774 break;
671 case V4L2_FIELD_BOTTOM: 775 case V4L2_FIELD_BOTTOM:
672 bttv_calc_geo(btv,&buf->geo,buf->vb.width, 776 bttv_calc_geo(btv,&buf->geo,buf->vb.width,
673 buf->vb.height,0,buf->tvnorm); 777 buf->vb.height,0,
778 tvnorm,&buf->crop);
674 bttv_risc_planar(btv, &buf->bottom, buf->vb.dma.sglist, 779 bttv_risc_planar(btv, &buf->bottom, buf->vb.dma.sglist,
675 0,buf->vb.width,0,buf->vb.height, 780 0,buf->vb.width,0,buf->vb.height,
676 uoffset,voffset,buf->fmt->hshift, 781 uoffset,voffset,buf->fmt->hshift,
@@ -678,7 +783,8 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
678 break; 783 break;
679 case V4L2_FIELD_INTERLACED: 784 case V4L2_FIELD_INTERLACED:
680 bttv_calc_geo(btv,&buf->geo,buf->vb.width, 785 bttv_calc_geo(btv,&buf->geo,buf->vb.width,
681 buf->vb.height,1,buf->tvnorm); 786 buf->vb.height,1,
787 tvnorm,&buf->crop);
682 lines = buf->vb.height >> 1; 788 lines = buf->vb.height >> 1;
683 ypadding = buf->vb.width; 789 ypadding = buf->vb.width;
684 cpadding = buf->vb.width >> buf->fmt->hshift; 790 cpadding = buf->vb.width >> buf->fmt->hshift;
@@ -700,7 +806,8 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
700 break; 806 break;
701 case V4L2_FIELD_SEQ_TB: 807 case V4L2_FIELD_SEQ_TB:
702 bttv_calc_geo(btv,&buf->geo,buf->vb.width, 808 bttv_calc_geo(btv,&buf->geo,buf->vb.width,
703 buf->vb.height,1,buf->tvnorm); 809 buf->vb.height,1,
810 tvnorm,&buf->crop);
704 lines = buf->vb.height >> 1; 811 lines = buf->vb.height >> 1;
705 ypadding = buf->vb.width; 812 ypadding = buf->vb.width;
706 cpadding = buf->vb.width >> buf->fmt->hshift; 813 cpadding = buf->vb.width >> buf->fmt->hshift;
@@ -731,11 +838,12 @@ bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf)
731 /* build risc code */ 838 /* build risc code */
732 buf->vb.field = V4L2_FIELD_SEQ_TB; 839 buf->vb.field = V4L2_FIELD_SEQ_TB;
733 bttv_calc_geo(btv,&buf->geo,tvnorm->swidth,tvnorm->sheight, 840 bttv_calc_geo(btv,&buf->geo,tvnorm->swidth,tvnorm->sheight,
734 1,buf->tvnorm); 841 1,tvnorm,&buf->crop);
735 bttv_risc_packed(btv, &buf->top, buf->vb.dma.sglist, 842 bttv_risc_packed(btv, &buf->top, buf->vb.dma.sglist,
736 0, RAW_BPL, 0, RAW_LINES); 843 /* offset */ 0, RAW_BPL, /* padding */ 0,
844 /* skip_lines */ 0, RAW_LINES);
737 bttv_risc_packed(btv, &buf->bottom, buf->vb.dma.sglist, 845 bttv_risc_packed(btv, &buf->bottom, buf->vb.dma.sglist,
738 buf->vb.size/2 , RAW_BPL, 0, RAW_LINES); 846 buf->vb.size/2 , RAW_BPL, 0, 0, RAW_LINES);
739 } 847 }
740 848
741 /* copy format info */ 849 /* copy format info */
@@ -761,7 +869,8 @@ bttv_overlay_risc(struct bttv *btv,
761 869
762 /* calculate geometry */ 870 /* calculate geometry */
763 bttv_calc_geo(btv,&buf->geo,ov->w.width,ov->w.height, 871 bttv_calc_geo(btv,&buf->geo,ov->w.width,ov->w.height,
764 V4L2_FIELD_HAS_BOTH(ov->field), ov->tvnorm); 872 V4L2_FIELD_HAS_BOTH(ov->field),
873 &bttv_tvnorms[ov->tvnorm],&buf->crop);
765 874
766 /* build risc code */ 875 /* build risc code */
767 switch (ov->field) { 876 switch (ov->field) {
diff --git a/drivers/media/video/bt8xx/bttv-vbi.c b/drivers/media/video/bt8xx/bttv-vbi.c
index 6fc6b0260056..754f66bfdf46 100644
--- a/drivers/media/video/bt8xx/bttv-vbi.c
+++ b/drivers/media/video/bt8xx/bttv-vbi.c
@@ -5,6 +5,9 @@
5 5
6 (c) 2002 Gerd Knorr <kraxel@bytesex.org> 6 (c) 2002 Gerd Knorr <kraxel@bytesex.org>
7 7
8 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
9 Sponsored by OPQ Systems AB
10
8 This program is free software; you can redistribute it and/or modify 11 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by 12 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or 13 the Free Software Foundation; either version 2 of the License, or
@@ -41,8 +44,15 @@
41 to be about 244. */ 44 to be about 244. */
42#define VBI_OFFSET 244 45#define VBI_OFFSET 244
43 46
47/* 2048 for compatibility with earlier driver versions. The driver
48 really stores 1024 + tvnorm->vbipack * 4 samples per line in the
49 buffer. Note tvnorm->vbipack is <= 0xFF (limit of VBIPACK_LO + HI
50 is 0x1FF DWORDs) and VBI read()s store a frame counter in the last
51 four bytes of the VBI image. */
52#define VBI_BPL 2048
53
54/* Compatibility. */
44#define VBI_DEFLINES 16 55#define VBI_DEFLINES 16
45#define VBI_MAXLINES 32
46 56
47static unsigned int vbibufs = 4; 57static unsigned int vbibufs = 4;
48static unsigned int vbi_debug = 0; 58static unsigned int vbi_debug = 0;
@@ -58,21 +68,12 @@ MODULE_PARM_DESC(vbi_debug,"vbi code debug messages, default is 0 (no)");
58#define dprintk(fmt, arg...) if (vbi_debug) \ 68#define dprintk(fmt, arg...) if (vbi_debug) \
59 printk(KERN_DEBUG "bttv%d/vbi: " fmt, btv->c.nr , ## arg) 69 printk(KERN_DEBUG "bttv%d/vbi: " fmt, btv->c.nr , ## arg)
60 70
71#define IMAGE_SIZE(fmt) \
72 (((fmt)->count[0] + (fmt)->count[1]) * (fmt)->samples_per_line)
73
61/* ----------------------------------------------------------------------- */ 74/* ----------------------------------------------------------------------- */
62/* vbi risc code + mm */ 75/* vbi risc code + mm */
63 76
64static int
65vbi_buffer_risc(struct bttv *btv, struct bttv_buffer *buf, int lines)
66{
67 int bpl = 2048;
68
69 bttv_risc_packed(btv, &buf->top, buf->vb.dma.sglist,
70 0, bpl-4, 4, lines);
71 bttv_risc_packed(btv, &buf->bottom, buf->vb.dma.sglist,
72 lines * bpl, bpl-4, 4, lines);
73 return 0;
74}
75
76static int vbi_buffer_setup(struct videobuf_queue *q, 77static int vbi_buffer_setup(struct videobuf_queue *q,
77 unsigned int *count, unsigned int *size) 78 unsigned int *count, unsigned int *size)
78{ 79{
@@ -81,8 +82,16 @@ static int vbi_buffer_setup(struct videobuf_queue *q,
81 82
82 if (0 == *count) 83 if (0 == *count)
83 *count = vbibufs; 84 *count = vbibufs;
84 *size = fh->lines * 2 * 2048; 85
85 dprintk("setup: lines=%d\n",fh->lines); 86 *size = IMAGE_SIZE(&fh->vbi_fmt.fmt);
87
88 dprintk("setup: samples=%u start=%d,%d count=%u,%u\n",
89 fh->vbi_fmt.fmt.samples_per_line,
90 fh->vbi_fmt.fmt.start[0],
91 fh->vbi_fmt.fmt.start[1],
92 fh->vbi_fmt.fmt.count[0],
93 fh->vbi_fmt.fmt.count[1]);
94
86 return 0; 95 return 0;
87} 96}
88 97
@@ -93,18 +102,93 @@ static int vbi_buffer_prepare(struct videobuf_queue *q,
93 struct bttv_fh *fh = q->priv_data; 102 struct bttv_fh *fh = q->priv_data;
94 struct bttv *btv = fh->btv; 103 struct bttv *btv = fh->btv;
95 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); 104 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
105 const struct bttv_tvnorm *tvnorm;
106 unsigned int skip_lines0, skip_lines1, min_vdelay;
107 int redo_dma_risc;
96 int rc; 108 int rc;
97 109
98 buf->vb.size = fh->lines * 2 * 2048; 110 buf->vb.size = IMAGE_SIZE(&fh->vbi_fmt.fmt);
99 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 111 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
100 return -EINVAL; 112 return -EINVAL;
101 113
114 tvnorm = fh->vbi_fmt.tvnorm;
115
116 /* There's no VBI_VDELAY register, RISC must skip the lines
117 we don't want. With default parameters we skip zero lines
118 as earlier driver versions did. The driver permits video
119 standard changes while capturing, so we use vbi_fmt.tvnorm
120 instead of btv->tvnorm to skip zero lines after video
121 standard changes as well. */
122
123 skip_lines0 = 0;
124 skip_lines1 = 0;
125
126 if (fh->vbi_fmt.fmt.count[0] > 0)
127 skip_lines0 = max(0, (fh->vbi_fmt.fmt.start[0]
128 - tvnorm->vbistart[0]));
129 if (fh->vbi_fmt.fmt.count[1] > 0)
130 skip_lines1 = max(0, (fh->vbi_fmt.fmt.start[1]
131 - tvnorm->vbistart[1]));
132
133 redo_dma_risc = 0;
134
135 if (buf->vbi_skip[0] != skip_lines0 ||
136 buf->vbi_skip[1] != skip_lines1 ||
137 buf->vbi_count[0] != fh->vbi_fmt.fmt.count[0] ||
138 buf->vbi_count[1] != fh->vbi_fmt.fmt.count[1]) {
139 buf->vbi_skip[0] = skip_lines0;
140 buf->vbi_skip[1] = skip_lines1;
141 buf->vbi_count[0] = fh->vbi_fmt.fmt.count[0];
142 buf->vbi_count[1] = fh->vbi_fmt.fmt.count[1];
143 redo_dma_risc = 1;
144 }
145
102 if (STATE_NEEDS_INIT == buf->vb.state) { 146 if (STATE_NEEDS_INIT == buf->vb.state) {
147 redo_dma_risc = 1;
103 if (0 != (rc = videobuf_iolock(q, &buf->vb, NULL))) 148 if (0 != (rc = videobuf_iolock(q, &buf->vb, NULL)))
104 goto fail; 149 goto fail;
105 if (0 != (rc = vbi_buffer_risc(btv,buf,fh->lines)))
106 goto fail;
107 } 150 }
151
152 if (redo_dma_risc) {
153 unsigned int bpl, padding, offset;
154
155 bpl = 2044; /* max. vbipack */
156 padding = VBI_BPL - bpl;
157
158 if (fh->vbi_fmt.fmt.count[0] > 0) {
159 rc = bttv_risc_packed(btv, &buf->top,
160 buf->vb.dma.sglist,
161 /* offset */ 0, bpl,
162 padding, skip_lines0,
163 fh->vbi_fmt.fmt.count[0]);
164 if (0 != rc)
165 goto fail;
166 }
167
168 if (fh->vbi_fmt.fmt.count[1] > 0) {
169 offset = fh->vbi_fmt.fmt.count[0] * VBI_BPL;
170
171 rc = bttv_risc_packed(btv, &buf->bottom,
172 buf->vb.dma.sglist,
173 offset, bpl,
174 padding, skip_lines1,
175 fh->vbi_fmt.fmt.count[1]);
176 if (0 != rc)
177 goto fail;
178 }
179 }
180
181 /* VBI capturing ends at VDELAY, start of video capturing,
182 no matter where the RISC program ends. VDELAY minimum is 2,
183 bounds.top is the corresponding first field line number
184 times two. VDELAY counts half field lines. */
185 min_vdelay = MIN_VDELAY;
186 if (fh->vbi_fmt.end >= tvnorm->cropcap.bounds.top)
187 min_vdelay += fh->vbi_fmt.end - tvnorm->cropcap.bounds.top;
188
189 /* For bttv_buffer_activate_vbi(). */
190 buf->geo.vdelay = min_vdelay;
191
108 buf->vb.state = STATE_PREPARED; 192 buf->vb.state = STATE_PREPARED;
109 buf->vb.field = field; 193 buf->vb.field = field;
110 dprintk("buf prepare %p: top=%p bottom=%p field=%s\n", 194 dprintk("buf prepare %p: top=%p bottom=%p field=%s\n",
@@ -152,69 +236,215 @@ struct videobuf_queue_ops bttv_vbi_qops = {
152 236
153/* ----------------------------------------------------------------------- */ 237/* ----------------------------------------------------------------------- */
154 238
155void bttv_vbi_setlines(struct bttv_fh *fh, struct bttv *btv, int lines) 239static int
240try_fmt (struct v4l2_vbi_format * f,
241 const struct bttv_tvnorm * tvnorm,
242 __s32 crop_start)
156{ 243{
157 int vdelay; 244 __s32 min_start, max_start, max_end, f2_offset;
158 245 unsigned int i;
159 if (lines < 1) 246
160 lines = 1; 247 /* For compatibility with earlier driver versions we must pretend
161 if (lines > VBI_MAXLINES) 248 the VBI and video capture window may overlap. In reality RISC
162 lines = VBI_MAXLINES; 249 magic aborts VBI capturing at the first line of video capturing,
163 fh->lines = lines; 250 leaving the rest of the buffer unchanged, usually all zero.
164 251 VBI capturing must always start before video capturing. >> 1
165 vdelay = btread(BT848_E_VDELAY_LO); 252 because cropping counts field lines times two. */
166 if (vdelay < lines*2) { 253 min_start = tvnorm->vbistart[0];
167 vdelay = lines*2; 254 max_start = (crop_start >> 1) - 1;
168 btwrite(vdelay,BT848_E_VDELAY_LO); 255 max_end = (tvnorm->cropcap.bounds.top
169 btwrite(vdelay,BT848_O_VDELAY_LO); 256 + tvnorm->cropcap.bounds.height) >> 1;
257
258 if (min_start > max_start)
259 return -EBUSY;
260
261 BUG_ON(max_start >= max_end);
262
263 f->sampling_rate = tvnorm->Fsc;
264 f->samples_per_line = VBI_BPL;
265 f->sample_format = V4L2_PIX_FMT_GREY;
266 f->offset = VBI_OFFSET;
267
268 f2_offset = tvnorm->vbistart[1] - tvnorm->vbistart[0];
269
270 for (i = 0; i < 2; ++i) {
271 if (0 == f->count[i]) {
272 /* No data from this field. We leave f->start[i]
273 alone because VIDIOCSVBIFMT is w/o and EINVALs
274 when a driver does not support exactly the
275 requested parameters. */
276 } else {
277 s64 start, count;
278
279 start = clamp(f->start[i], min_start, max_start);
280 /* s64 to prevent overflow. */
281 count = (s64) f->start[i] + f->count[i] - start;
282 f->start[i] = start;
283 f->count[i] = clamp(count, (s64) 1,
284 max_end - start);
285 }
286
287 min_start += f2_offset;
288 max_start += f2_offset;
289 max_end += f2_offset;
170 } 290 }
291
292 if (0 == (f->count[0] | f->count[1])) {
293 /* As in earlier driver versions. */
294 f->start[0] = tvnorm->vbistart[0];
295 f->start[1] = tvnorm->vbistart[1];
296 f->count[0] = 1;
297 f->count[1] = 1;
298 }
299
300 f->flags = 0;
301
302 f->reserved[0] = 0;
303 f->reserved[1] = 0;
304
305 return 0;
171} 306}
172 307
173void bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_format *f) 308int
309bttv_vbi_try_fmt (struct bttv_fh * fh,
310 struct v4l2_vbi_format * f)
174{ 311{
312 struct bttv *btv = fh->btv;
175 const struct bttv_tvnorm *tvnorm; 313 const struct bttv_tvnorm *tvnorm;
176 s64 count0,count1,count; 314 __s32 crop_start;
177 315
178 tvnorm = &bttv_tvnorms[fh->btv->tvnorm]; 316 mutex_lock(&btv->lock);
179 f->type = V4L2_BUF_TYPE_VBI_CAPTURE; 317
180 f->fmt.vbi.sampling_rate = tvnorm->Fsc; 318 tvnorm = &bttv_tvnorms[btv->tvnorm];
181 f->fmt.vbi.samples_per_line = 2048; 319 crop_start = btv->crop_start;
182 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 320
183 f->fmt.vbi.offset = VBI_OFFSET; 321 mutex_unlock(&btv->lock);
184 f->fmt.vbi.flags = 0; 322
185 323 return try_fmt(f, tvnorm, crop_start);
186 /* s64 to prevent overflow. */
187 count0 = (s64) f->fmt.vbi.start[0] + f->fmt.vbi.count[0]
188 - tvnorm->vbistart[0];
189 count1 = (s64) f->fmt.vbi.start[1] + f->fmt.vbi.count[1]
190 - tvnorm->vbistart[1];
191 count = clamp (max (count0, count1), (s64) 1, (s64) VBI_MAXLINES);
192
193 f->fmt.vbi.start[0] = tvnorm->vbistart[0];
194 f->fmt.vbi.start[1] = tvnorm->vbistart[1];
195 f->fmt.vbi.count[0] = count;
196 f->fmt.vbi.count[1] = count;
197
198 f->fmt.vbi.reserved[0] = 0;
199 f->fmt.vbi.reserved[1] = 0;
200} 324}
201 325
202void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_format *f) 326int
327bttv_vbi_set_fmt (struct bttv_fh * fh,
328 struct v4l2_vbi_format * f)
203{ 329{
330 struct bttv *btv = fh->btv;
204 const struct bttv_tvnorm *tvnorm; 331 const struct bttv_tvnorm *tvnorm;
332 __s32 start1, end;
333 int rc;
334
335 mutex_lock(&btv->lock);
336
337 rc = -EBUSY;
338 if (fh->resources & RESOURCE_VBI)
339 goto fail;
340
341 tvnorm = &bttv_tvnorms[btv->tvnorm];
342
343 rc = try_fmt(f, tvnorm, btv->crop_start);
344 if (0 != rc)
345 goto fail;
346
347 start1 = f->start[1] - tvnorm->vbistart[1] + tvnorm->vbistart[0];
348
349 /* First possible line of video capturing. Should be
350 max(f->start[0] + f->count[0], start1 + f->count[1]) * 2
351 when capturing both fields. But for compatibility we must
352 pretend the VBI and video capture window may overlap,
353 so end = start + 1, the lowest possible value, times two
354 because vbi_fmt.end counts field lines times two. */
355 end = max(f->start[0], start1) * 2 + 2;
356
357 mutex_lock(&fh->vbi.lock);
358
359 fh->vbi_fmt.fmt = *f;
360 fh->vbi_fmt.tvnorm = tvnorm;
361 fh->vbi_fmt.end = end;
362
363 mutex_unlock(&fh->vbi.lock);
364
365 rc = 0;
366
367 fail:
368 mutex_unlock(&btv->lock);
369
370 return rc;
371}
372
373void
374bttv_vbi_get_fmt (struct bttv_fh * fh,
375 struct v4l2_vbi_format * f)
376{
377 const struct bttv_tvnorm *tvnorm;
378
379 *f = fh->vbi_fmt.fmt;
205 380
206 tvnorm = &bttv_tvnorms[fh->btv->tvnorm]; 381 tvnorm = &bttv_tvnorms[fh->btv->tvnorm];
207 memset(f,0,sizeof(*f)); 382
208 f->type = V4L2_BUF_TYPE_VBI_CAPTURE; 383 if (tvnorm != fh->vbi_fmt.tvnorm) {
209 f->fmt.vbi.sampling_rate = tvnorm->Fsc; 384 __s32 max_end;
210 f->fmt.vbi.samples_per_line = 2048; 385 unsigned int i;
211 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 386
212 f->fmt.vbi.offset = VBI_OFFSET; 387 /* As in vbi_buffer_prepare() this imitates the
213 f->fmt.vbi.start[0] = tvnorm->vbistart[0]; 388 behaviour of earlier driver versions after video
214 f->fmt.vbi.start[1] = tvnorm->vbistart[1]; 389 standard changes, with default parameters anyway. */
215 f->fmt.vbi.count[0] = fh->lines; 390
216 f->fmt.vbi.count[1] = fh->lines; 391 max_end = (tvnorm->cropcap.bounds.top
217 f->fmt.vbi.flags = 0; 392 + tvnorm->cropcap.bounds.height) >> 1;
393
394 f->sampling_rate = tvnorm->Fsc;
395
396 for (i = 0; i < 2; ++i) {
397 __s32 new_start;
398
399 new_start = f->start[i]
400 + tvnorm->vbistart[i]
401 - fh->vbi_fmt.tvnorm->vbistart[i];
402
403 f->start[i] = min(new_start, max_end - 1);
404 f->count[i] = min((__s32) f->count[i],
405 max_end - f->start[i]);
406
407 max_end += tvnorm->vbistart[1]
408 - tvnorm->vbistart[0];
409 }
410 }
411}
412
413void
414bttv_vbi_fmt_reset (struct bttv_vbi_fmt * f,
415 int norm)
416{
417 const struct bttv_tvnorm *tvnorm;
418 unsigned int real_samples_per_line;
419 unsigned int real_count;
420
421 tvnorm = &bttv_tvnorms[norm];
422
423 f->fmt.sampling_rate = tvnorm->Fsc;
424 f->fmt.samples_per_line = VBI_BPL;
425 f->fmt.sample_format = V4L2_PIX_FMT_GREY;
426 f->fmt.offset = VBI_OFFSET;
427 f->fmt.start[0] = tvnorm->vbistart[0];
428 f->fmt.start[1] = tvnorm->vbistart[1];
429 f->fmt.count[0] = VBI_DEFLINES;
430 f->fmt.count[1] = VBI_DEFLINES;
431 f->fmt.flags = 0;
432 f->fmt.reserved[0] = 0;
433 f->fmt.reserved[1] = 0;
434
435 /* For compatibility the buffer size must be 2 * VBI_DEFLINES *
436 VBI_BPL regardless of the current video standard. */
437 real_samples_per_line = 1024 + tvnorm->vbipack * 4;
438 real_count = ((tvnorm->cropcap.defrect.top >> 1)
439 - tvnorm->vbistart[0]);
440
441 BUG_ON(real_samples_per_line > VBI_BPL);
442 BUG_ON(real_count > VBI_DEFLINES);
443
444 f->tvnorm = tvnorm;
445
446 /* See bttv_vbi_fmt_set(). */
447 f->end = tvnorm->vbistart[0] * 2 + 2;
218} 448}
219 449
220/* ----------------------------------------------------------------------- */ 450/* ----------------------------------------------------------------------- */
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index 3802cafc9e41..ad79b8d53430 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -26,7 +26,7 @@
26#define _BTTVP_H_ 26#define _BTTVP_H_
27 27
28#include <linux/version.h> 28#include <linux/version.h>
29#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,16) 29#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,17)
30 30
31#include <linux/types.h> 31#include <linux/types.h>
32#include <linux/wait.h> 32#include <linux/wait.h>
@@ -66,14 +66,22 @@
66#define RISC_SLOT_LOOP 14 66#define RISC_SLOT_LOOP 14
67 67
68#define RESOURCE_OVERLAY 1 68#define RESOURCE_OVERLAY 1
69#define RESOURCE_VIDEO 2 69#define RESOURCE_VIDEO_STREAM 2
70#define RESOURCE_VBI 4 70#define RESOURCE_VBI 4
71#define RESOURCE_VIDEO_READ 8
71 72
72#define RAW_LINES 640 73#define RAW_LINES 640
73#define RAW_BPL 1024 74#define RAW_BPL 1024
74 75
75#define UNSET (-1U) 76#define UNSET (-1U)
76 77
78/* Min. value in VDELAY register. */
79#define MIN_VDELAY 2
80/* Even to get Cb first, odd for Cr. */
81#define MAX_HDELAY (0x3FF & -2)
82/* Limits scaled width, which must be a multiple of 4. */
83#define MAX_HACTIVE (0x3FF & -4)
84
77#define clamp(x, low, high) min (max (low, x), high) 85#define clamp(x, low, high) min (max (low, x), high)
78 86
79/* ---------------------------------------------------------- */ 87/* ---------------------------------------------------------- */
@@ -92,8 +100,13 @@ struct bttv_tvnorm {
92 u16 vtotal; 100 u16 vtotal;
93 int sram; 101 int sram;
94 /* ITU-R frame line number of the first VBI line we can 102 /* ITU-R frame line number of the first VBI line we can
95 capture, of the first and second field. */ 103 capture, of the first and second field. The last possible line
104 is determined by cropcap.bounds. */
96 u16 vbistart[2]; 105 u16 vbistart[2];
106 /* Horizontally this counts fCLKx1 samples following the leading
107 edge of the horizontal sync pulse, vertically ITU-R frame line
108 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
109 struct v4l2_cropcap cropcap;
97}; 110};
98extern const struct bttv_tvnorm bttv_tvnorms[]; 111extern const struct bttv_tvnorm bttv_tvnorms[];
99 112
@@ -128,6 +141,9 @@ struct bttv_buffer {
128 struct bttv_geometry geo; 141 struct bttv_geometry geo;
129 struct btcx_riscmem top; 142 struct btcx_riscmem top;
130 struct btcx_riscmem bottom; 143 struct btcx_riscmem bottom;
144 struct v4l2_rect crop;
145 unsigned int vbi_skip[2];
146 unsigned int vbi_count[2];
131}; 147};
132 148
133struct bttv_buffer_set { 149struct bttv_buffer_set {
@@ -146,6 +162,34 @@ struct bttv_overlay {
146 int setup_ok; 162 int setup_ok;
147}; 163};
148 164
165struct bttv_vbi_fmt {
166 struct v4l2_vbi_format fmt;
167
168 /* fmt.start[] and count[] refer to this video standard. */
169 const struct bttv_tvnorm *tvnorm;
170
171 /* Earliest possible start of video capturing with this
172 v4l2_vbi_format, in struct bttv_crop.rect units. */
173 __s32 end;
174};
175
176/* bttv-vbi.c */
177void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
178
179struct bttv_crop {
180 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
181 struct v4l2_rect rect;
182
183 /* Scaled image size limits with this crop rect. Divide
184 max_height, but not min_height, by two when capturing
185 single fields. See also bttv_crop_reset() and
186 bttv_crop_adjust() in bttv-driver.c. */
187 __s32 min_scaled_width;
188 __s32 min_scaled_height;
189 __s32 max_scaled_width;
190 __s32 max_scaled_height;
191};
192
149struct bttv_fh { 193struct bttv_fh {
150 struct bttv *btv; 194 struct bttv *btv;
151 int resources; 195 int resources;
@@ -160,13 +204,19 @@ struct bttv_fh {
160 int width; 204 int width;
161 int height; 205 int height;
162 206
163 /* current settings */ 207 /* video overlay */
164 const struct bttv_format *ovfmt; 208 const struct bttv_format *ovfmt;
165 struct bttv_overlay ov; 209 struct bttv_overlay ov;
166 210
167 /* video overlay */ 211 /* Application called VIDIOC_S_CROP. */
212 int do_crop;
213
214 /* vbi capture */
168 struct videobuf_queue vbi; 215 struct videobuf_queue vbi;
169 int lines; 216 /* Current VBI capture window as seen through this fh (cannot
217 be global for compatibility with earlier drivers). Protected
218 by struct bttv.lock and struct bttv_fh.vbi.lock. */
219 struct bttv_vbi_fmt vbi_fmt;
170}; 220};
171 221
172/* ---------------------------------------------------------- */ 222/* ---------------------------------------------------------- */
@@ -176,7 +226,8 @@ struct bttv_fh {
176int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc, 226int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
177 struct scatterlist *sglist, 227 struct scatterlist *sglist,
178 unsigned int offset, unsigned int bpl, 228 unsigned int offset, unsigned int bpl,
179 unsigned int pitch, unsigned int lines); 229 unsigned int pitch, unsigned int skip_lines,
230 unsigned int store_lines);
180 231
181/* control dma register + risc main loop */ 232/* control dma register + risc main loop */
182void bttv_set_dma(struct bttv *btv, int override); 233void bttv_set_dma(struct bttv *btv, int override);
@@ -202,9 +253,9 @@ int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
202/* ---------------------------------------------------------- */ 253/* ---------------------------------------------------------- */
203/* bttv-vbi.c */ 254/* bttv-vbi.c */
204 255
205void bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_format *f); 256int bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
206void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_format *f); 257void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
207void bttv_vbi_setlines(struct bttv_fh *fh, struct bttv *btv, int lines); 258int bttv_vbi_set_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
208 259
209extern struct videobuf_queue_ops bttv_vbi_qops; 260extern struct videobuf_queue_ops bttv_vbi_qops;
210 261
@@ -233,7 +284,6 @@ extern int fini_bttv_i2c(struct bttv *btv);
233#define d2printk if (bttv_debug >= 2) printk 284#define d2printk if (bttv_debug >= 2) printk
234 285
235#define BTTV_MAX_FBUF 0x208000 286#define BTTV_MAX_FBUF 0x208000
236#define VBIBUF_SIZE (2048*VBI_MAXLINES*2)
237#define BTTV_TIMEOUT (HZ/2) /* 0.5 seconds */ 287#define BTTV_TIMEOUT (HZ/2) /* 0.5 seconds */
238#define BTTV_FREE_IDLE (HZ) /* one second */ 288#define BTTV_FREE_IDLE (HZ) /* one second */
239 289
@@ -314,7 +364,6 @@ struct bttv {
314 spinlock_t s_lock; 364 spinlock_t s_lock;
315 struct mutex lock; 365 struct mutex lock;
316 int resources; 366 int resources;
317 struct mutex reslock;
318#ifdef VIDIOC_G_PRIORITY 367#ifdef VIDIOC_G_PRIORITY
319 struct v4l2_prio_state prio; 368 struct v4l2_prio_state prio;
320#endif 369#endif
@@ -384,6 +433,21 @@ struct bttv {
384 433
385 unsigned int users; 434 unsigned int users;
386 struct bttv_fh init; 435 struct bttv_fh init;
436
437 /* Default (0) and current (1) video capturing and overlay
438 cropping parameters in bttv_tvnorm.cropcap units. Protected
439 by bttv.lock. */
440 struct bttv_crop crop[2];
441
442 /* Earliest possible start of video capturing in
443 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
444 and free_btres(). Protected by bttv.lock. */
445 __s32 vbi_end;
446
447 /* Latest possible end of VBI capturing (= crop[x].rect.top when
448 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
449 and free_btres(). Protected by bttv.lock. */
450 __s32 crop_start;
387}; 451};
388 452
389/* our devices */ 453/* our devices */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-04 08:39:33 -0400
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