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Merge drm-fixes into drm-next.
[deliverable/linux.git] / drivers / media / pci / bt8xx / bttv-driver.c
1 /*
2
3 bttv - Bt848 frame grabber driver
4
5 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
6 & Marcus Metzler <mocm@thp.uni-koeln.de>
7 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
8
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>
11
12 V4L1 removal from:
13 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
14
15 Fixes to be fully V4L2 compliant by
16 (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
17
18 Cropping and overscan support
19 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
20 Sponsored by OPQ Systems AB
21
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
26
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
31
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
35 */
36
37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39 #include <linux/init.h>
40 #include <linux/module.h>
41 #include <linux/delay.h>
42 #include <linux/slab.h>
43 #include <linux/errno.h>
44 #include <linux/fs.h>
45 #include <linux/kernel.h>
46 #include <linux/sched.h>
47 #include <linux/interrupt.h>
48 #include <linux/kdev_t.h>
49 #include "bttvp.h"
50 #include <media/v4l2-common.h>
51 #include <media/v4l2-ioctl.h>
52 #include <media/v4l2-event.h>
53 #include <media/i2c/tvaudio.h>
54 #include <media/drv-intf/msp3400.h>
55
56 #include <linux/dma-mapping.h>
57
58 #include <asm/io.h>
59 #include <asm/byteorder.h>
60
61 #include <media/i2c/saa6588.h>
62
63 #define BTTV_VERSION "0.9.19"
64
65 unsigned int bttv_num; /* number of Bt848s in use */
66 struct bttv *bttvs[BTTV_MAX];
67
68 unsigned int bttv_debug;
69 unsigned int bttv_verbose = 1;
70 unsigned int bttv_gpio;
71
72 /* config variables */
73 #ifdef __BIG_ENDIAN
74 static unsigned int bigendian=1;
75 #else
76 static unsigned int bigendian;
77 #endif
78 static unsigned int radio[BTTV_MAX];
79 static unsigned int irq_debug;
80 static unsigned int gbuffers = 8;
81 static unsigned int gbufsize = 0x208000;
82 static unsigned int reset_crop = 1;
83
84 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
85 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
86 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
87 static int debug_latency;
88 static int disable_ir;
89
90 static unsigned int fdsr;
91
92 /* options */
93 static unsigned int combfilter;
94 static unsigned int lumafilter;
95 static unsigned int automute = 1;
96 static unsigned int chroma_agc;
97 static unsigned int agc_crush = 1;
98 static unsigned int whitecrush_upper = 0xCF;
99 static unsigned int whitecrush_lower = 0x7F;
100 static unsigned int vcr_hack;
101 static unsigned int irq_iswitch;
102 static unsigned int uv_ratio = 50;
103 static unsigned int full_luma_range;
104 static unsigned int coring;
105
106 /* API features (turn on/off stuff for testing) */
107 static unsigned int v4l2 = 1;
108
109 /* insmod args */
110 module_param(bttv_verbose, int, 0644);
111 module_param(bttv_gpio, int, 0644);
112 module_param(bttv_debug, int, 0644);
113 module_param(irq_debug, int, 0644);
114 module_param(debug_latency, int, 0644);
115 module_param(disable_ir, int, 0444);
116
117 module_param(fdsr, int, 0444);
118 module_param(gbuffers, int, 0444);
119 module_param(gbufsize, int, 0444);
120 module_param(reset_crop, int, 0444);
121
122 module_param(v4l2, int, 0644);
123 module_param(bigendian, int, 0644);
124 module_param(irq_iswitch, int, 0644);
125 module_param(combfilter, int, 0444);
126 module_param(lumafilter, int, 0444);
127 module_param(automute, int, 0444);
128 module_param(chroma_agc, int, 0444);
129 module_param(agc_crush, int, 0444);
130 module_param(whitecrush_upper, int, 0444);
131 module_param(whitecrush_lower, int, 0444);
132 module_param(vcr_hack, int, 0444);
133 module_param(uv_ratio, int, 0444);
134 module_param(full_luma_range, int, 0444);
135 module_param(coring, int, 0444);
136
137 module_param_array(radio, int, NULL, 0444);
138 module_param_array(video_nr, int, NULL, 0444);
139 module_param_array(radio_nr, int, NULL, 0444);
140 module_param_array(vbi_nr, int, NULL, 0444);
141
142 MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)");
143 MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian");
144 MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)");
145 MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)");
146 MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)");
147 MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)");
148 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
149 MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8");
150 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000");
151 MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default "
152 "is 1 (yes) for compatibility with older applications");
153 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
154 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
155 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
156 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
157 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127");
158 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
159 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler");
160 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50");
161 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)");
162 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)");
163 MODULE_PARM_DESC(video_nr, "video device numbers");
164 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
165 MODULE_PARM_DESC(radio_nr, "radio device numbers");
166
167 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
168 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
169 MODULE_LICENSE("GPL");
170 MODULE_VERSION(BTTV_VERSION);
171
172 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0)
173 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1)
174 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2)
175 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3)
176 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4)
177 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5)
178 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6)
179 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7)
180 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8)
181 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9)
182
183 /* ----------------------------------------------------------------------- */
184 /* sysfs */
185
186 static ssize_t show_card(struct device *cd,
187 struct device_attribute *attr, char *buf)
188 {
189 struct video_device *vfd = to_video_device(cd);
190 struct bttv *btv = video_get_drvdata(vfd);
191 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
192 }
193 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
194
195 /* ----------------------------------------------------------------------- */
196 /* dvb auto-load setup */
197 #if defined(CONFIG_MODULES) && defined(MODULE)
198 static void request_module_async(struct work_struct *work)
199 {
200 request_module("dvb-bt8xx");
201 }
202
203 static void request_modules(struct bttv *dev)
204 {
205 INIT_WORK(&dev->request_module_wk, request_module_async);
206 schedule_work(&dev->request_module_wk);
207 }
208
209 static void flush_request_modules(struct bttv *dev)
210 {
211 flush_work(&dev->request_module_wk);
212 }
213 #else
214 #define request_modules(dev)
215 #define flush_request_modules(dev) do {} while(0)
216 #endif /* CONFIG_MODULES */
217
218
219 /* ----------------------------------------------------------------------- */
220 /* static data */
221
222 /* special timing tables from conexant... */
223 static u8 SRAM_Table[][60] =
224 {
225 /* PAL digital input over GPIO[7:0] */
226 {
227 45, // 45 bytes following
228 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
229 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
230 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
231 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
232 0x37,0x00,0xAF,0x21,0x00
233 },
234 /* NTSC digital input over GPIO[7:0] */
235 {
236 51, // 51 bytes following
237 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
238 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
239 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
240 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
241 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
242 0x00,
243 },
244 // TGB_NTSC392 // quartzsight
245 // This table has been modified to be used for Fusion Rev D
246 {
247 0x2A, // size of table = 42
248 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
249 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
250 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
251 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
252 0x20, 0x00
253 }
254 };
255
256 /* minhdelayx1 first video pixel we can capture on a line and
257 hdelayx1 start of active video, both relative to rising edge of
258 /HRESET pulse (0H) in 1 / fCLKx1.
259 swidth width of active video and
260 totalwidth total line width, both in 1 / fCLKx1.
261 sqwidth total line width in square pixels.
262 vdelay start of active video in 2 * field lines relative to
263 trailing edge of /VRESET pulse (VDELAY register).
264 sheight height of active video in 2 * field lines.
265 extraheight Added to sheight for cropcap.bounds.height only
266 videostart0 ITU-R frame line number of the line corresponding
267 to vdelay in the first field. */
268 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
269 vdelay, sheight, extraheight, videostart0) \
270 .cropcap.bounds.left = minhdelayx1, \
271 /* * 2 because vertically we count field lines times two, */ \
272 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
273 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
274 /* 4 is a safety margin at the end of the line. */ \
275 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
276 .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \
277 MIN_VDELAY, \
278 .cropcap.defrect.left = hdelayx1, \
279 .cropcap.defrect.top = (videostart0) * 2, \
280 .cropcap.defrect.width = swidth, \
281 .cropcap.defrect.height = sheight, \
282 .cropcap.pixelaspect.numerator = totalwidth, \
283 .cropcap.pixelaspect.denominator = sqwidth,
284
285 const struct bttv_tvnorm bttv_tvnorms[] = {
286 /* PAL-BDGHI */
287 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
288 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
289 {
290 .v4l2_id = V4L2_STD_PAL,
291 .name = "PAL",
292 .Fsc = 35468950,
293 .swidth = 924,
294 .sheight = 576,
295 .totalwidth = 1135,
296 .adelay = 0x7f,
297 .bdelay = 0x72,
298 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
299 .scaledtwidth = 1135,
300 .hdelayx1 = 186,
301 .hactivex1 = 924,
302 .vdelay = 0x20,
303 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
304 .sram = 0,
305 /* ITU-R frame line number of the first VBI line
306 we can capture, of the first and second field.
307 The last line is determined by cropcap.bounds. */
308 .vbistart = { 7, 320 },
309 CROPCAP(/* minhdelayx1 */ 68,
310 /* hdelayx1 */ 186,
311 /* Should be (768 * 1135 + 944 / 2) / 944.
312 cropcap.defrect is used for image width
313 checks, so we keep the old value 924. */
314 /* swidth */ 924,
315 /* totalwidth */ 1135,
316 /* sqwidth */ 944,
317 /* vdelay */ 0x20,
318 /* sheight */ 576,
319 /* bt878 (and bt848?) can capture another
320 line below active video. */
321 /* extraheight */ 2,
322 /* videostart0 */ 23)
323 },{
324 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
325 .name = "NTSC",
326 .Fsc = 28636363,
327 .swidth = 768,
328 .sheight = 480,
329 .totalwidth = 910,
330 .adelay = 0x68,
331 .bdelay = 0x5d,
332 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
333 .scaledtwidth = 910,
334 .hdelayx1 = 128,
335 .hactivex1 = 910,
336 .vdelay = 0x1a,
337 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
338 .sram = 1,
339 .vbistart = { 10, 273 },
340 CROPCAP(/* minhdelayx1 */ 68,
341 /* hdelayx1 */ 128,
342 /* Should be (640 * 910 + 780 / 2) / 780? */
343 /* swidth */ 768,
344 /* totalwidth */ 910,
345 /* sqwidth */ 780,
346 /* vdelay */ 0x1a,
347 /* sheight */ 480,
348 /* extraheight */ 0,
349 /* videostart0 */ 23)
350 },{
351 .v4l2_id = V4L2_STD_SECAM,
352 .name = "SECAM",
353 .Fsc = 35468950,
354 .swidth = 924,
355 .sheight = 576,
356 .totalwidth = 1135,
357 .adelay = 0x7f,
358 .bdelay = 0xb0,
359 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
360 .scaledtwidth = 1135,
361 .hdelayx1 = 186,
362 .hactivex1 = 922,
363 .vdelay = 0x20,
364 .vbipack = 255,
365 .sram = 0, /* like PAL, correct? */
366 .vbistart = { 7, 320 },
367 CROPCAP(/* minhdelayx1 */ 68,
368 /* hdelayx1 */ 186,
369 /* swidth */ 924,
370 /* totalwidth */ 1135,
371 /* sqwidth */ 944,
372 /* vdelay */ 0x20,
373 /* sheight */ 576,
374 /* extraheight */ 0,
375 /* videostart0 */ 23)
376 },{
377 .v4l2_id = V4L2_STD_PAL_Nc,
378 .name = "PAL-Nc",
379 .Fsc = 28636363,
380 .swidth = 640,
381 .sheight = 576,
382 .totalwidth = 910,
383 .adelay = 0x68,
384 .bdelay = 0x5d,
385 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
386 .scaledtwidth = 780,
387 .hdelayx1 = 130,
388 .hactivex1 = 734,
389 .vdelay = 0x1a,
390 .vbipack = 144,
391 .sram = -1,
392 .vbistart = { 7, 320 },
393 CROPCAP(/* minhdelayx1 */ 68,
394 /* hdelayx1 */ 130,
395 /* swidth */ (640 * 910 + 780 / 2) / 780,
396 /* totalwidth */ 910,
397 /* sqwidth */ 780,
398 /* vdelay */ 0x1a,
399 /* sheight */ 576,
400 /* extraheight */ 0,
401 /* videostart0 */ 23)
402 },{
403 .v4l2_id = V4L2_STD_PAL_M,
404 .name = "PAL-M",
405 .Fsc = 28636363,
406 .swidth = 640,
407 .sheight = 480,
408 .totalwidth = 910,
409 .adelay = 0x68,
410 .bdelay = 0x5d,
411 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
412 .scaledtwidth = 780,
413 .hdelayx1 = 135,
414 .hactivex1 = 754,
415 .vdelay = 0x1a,
416 .vbipack = 144,
417 .sram = -1,
418 .vbistart = { 10, 273 },
419 CROPCAP(/* minhdelayx1 */ 68,
420 /* hdelayx1 */ 135,
421 /* swidth */ (640 * 910 + 780 / 2) / 780,
422 /* totalwidth */ 910,
423 /* sqwidth */ 780,
424 /* vdelay */ 0x1a,
425 /* sheight */ 480,
426 /* extraheight */ 0,
427 /* videostart0 */ 23)
428 },{
429 .v4l2_id = V4L2_STD_PAL_N,
430 .name = "PAL-N",
431 .Fsc = 35468950,
432 .swidth = 768,
433 .sheight = 576,
434 .totalwidth = 1135,
435 .adelay = 0x7f,
436 .bdelay = 0x72,
437 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
438 .scaledtwidth = 944,
439 .hdelayx1 = 186,
440 .hactivex1 = 922,
441 .vdelay = 0x20,
442 .vbipack = 144,
443 .sram = -1,
444 .vbistart = { 7, 320 },
445 CROPCAP(/* minhdelayx1 */ 68,
446 /* hdelayx1 */ 186,
447 /* swidth */ (768 * 1135 + 944 / 2) / 944,
448 /* totalwidth */ 1135,
449 /* sqwidth */ 944,
450 /* vdelay */ 0x20,
451 /* sheight */ 576,
452 /* extraheight */ 0,
453 /* videostart0 */ 23)
454 },{
455 .v4l2_id = V4L2_STD_NTSC_M_JP,
456 .name = "NTSC-JP",
457 .Fsc = 28636363,
458 .swidth = 640,
459 .sheight = 480,
460 .totalwidth = 910,
461 .adelay = 0x68,
462 .bdelay = 0x5d,
463 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
464 .scaledtwidth = 780,
465 .hdelayx1 = 135,
466 .hactivex1 = 754,
467 .vdelay = 0x16,
468 .vbipack = 144,
469 .sram = -1,
470 .vbistart = { 10, 273 },
471 CROPCAP(/* minhdelayx1 */ 68,
472 /* hdelayx1 */ 135,
473 /* swidth */ (640 * 910 + 780 / 2) / 780,
474 /* totalwidth */ 910,
475 /* sqwidth */ 780,
476 /* vdelay */ 0x16,
477 /* sheight */ 480,
478 /* extraheight */ 0,
479 /* videostart0 */ 23)
480 },{
481 /* that one hopefully works with the strange timing
482 * which video recorders produce when playing a NTSC
483 * tape on a PAL TV ... */
484 .v4l2_id = V4L2_STD_PAL_60,
485 .name = "PAL-60",
486 .Fsc = 35468950,
487 .swidth = 924,
488 .sheight = 480,
489 .totalwidth = 1135,
490 .adelay = 0x7f,
491 .bdelay = 0x72,
492 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
493 .scaledtwidth = 1135,
494 .hdelayx1 = 186,
495 .hactivex1 = 924,
496 .vdelay = 0x1a,
497 .vbipack = 255,
498 .vtotal = 524,
499 .sram = -1,
500 .vbistart = { 10, 273 },
501 CROPCAP(/* minhdelayx1 */ 68,
502 /* hdelayx1 */ 186,
503 /* swidth */ 924,
504 /* totalwidth */ 1135,
505 /* sqwidth */ 944,
506 /* vdelay */ 0x1a,
507 /* sheight */ 480,
508 /* extraheight */ 0,
509 /* videostart0 */ 23)
510 }
511 };
512 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
513
514 /* ----------------------------------------------------------------------- */
515 /* bttv format list
516 packed pixel formats must come first */
517 static const struct bttv_format formats[] = {
518 {
519 .name = "8 bpp, gray",
520 .fourcc = V4L2_PIX_FMT_GREY,
521 .btformat = BT848_COLOR_FMT_Y8,
522 .depth = 8,
523 .flags = FORMAT_FLAGS_PACKED,
524 },{
525 .name = "8 bpp, dithered color",
526 .fourcc = V4L2_PIX_FMT_HI240,
527 .btformat = BT848_COLOR_FMT_RGB8,
528 .depth = 8,
529 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
530 },{
531 .name = "15 bpp RGB, le",
532 .fourcc = V4L2_PIX_FMT_RGB555,
533 .btformat = BT848_COLOR_FMT_RGB15,
534 .depth = 16,
535 .flags = FORMAT_FLAGS_PACKED,
536 },{
537 .name = "15 bpp RGB, be",
538 .fourcc = V4L2_PIX_FMT_RGB555X,
539 .btformat = BT848_COLOR_FMT_RGB15,
540 .btswap = 0x03, /* byteswap */
541 .depth = 16,
542 .flags = FORMAT_FLAGS_PACKED,
543 },{
544 .name = "16 bpp RGB, le",
545 .fourcc = V4L2_PIX_FMT_RGB565,
546 .btformat = BT848_COLOR_FMT_RGB16,
547 .depth = 16,
548 .flags = FORMAT_FLAGS_PACKED,
549 },{
550 .name = "16 bpp RGB, be",
551 .fourcc = V4L2_PIX_FMT_RGB565X,
552 .btformat = BT848_COLOR_FMT_RGB16,
553 .btswap = 0x03, /* byteswap */
554 .depth = 16,
555 .flags = FORMAT_FLAGS_PACKED,
556 },{
557 .name = "24 bpp RGB, le",
558 .fourcc = V4L2_PIX_FMT_BGR24,
559 .btformat = BT848_COLOR_FMT_RGB24,
560 .depth = 24,
561 .flags = FORMAT_FLAGS_PACKED,
562 },{
563 .name = "32 bpp RGB, le",
564 .fourcc = V4L2_PIX_FMT_BGR32,
565 .btformat = BT848_COLOR_FMT_RGB32,
566 .depth = 32,
567 .flags = FORMAT_FLAGS_PACKED,
568 },{
569 .name = "32 bpp RGB, be",
570 .fourcc = V4L2_PIX_FMT_RGB32,
571 .btformat = BT848_COLOR_FMT_RGB32,
572 .btswap = 0x0f, /* byte+word swap */
573 .depth = 32,
574 .flags = FORMAT_FLAGS_PACKED,
575 },{
576 .name = "4:2:2, packed, YUYV",
577 .fourcc = V4L2_PIX_FMT_YUYV,
578 .btformat = BT848_COLOR_FMT_YUY2,
579 .depth = 16,
580 .flags = FORMAT_FLAGS_PACKED,
581 },{
582 .name = "4:2:2, packed, UYVY",
583 .fourcc = V4L2_PIX_FMT_UYVY,
584 .btformat = BT848_COLOR_FMT_YUY2,
585 .btswap = 0x03, /* byteswap */
586 .depth = 16,
587 .flags = FORMAT_FLAGS_PACKED,
588 },{
589 .name = "4:2:2, planar, Y-Cb-Cr",
590 .fourcc = V4L2_PIX_FMT_YUV422P,
591 .btformat = BT848_COLOR_FMT_YCrCb422,
592 .depth = 16,
593 .flags = FORMAT_FLAGS_PLANAR,
594 .hshift = 1,
595 .vshift = 0,
596 },{
597 .name = "4:2:0, planar, Y-Cb-Cr",
598 .fourcc = V4L2_PIX_FMT_YUV420,
599 .btformat = BT848_COLOR_FMT_YCrCb422,
600 .depth = 12,
601 .flags = FORMAT_FLAGS_PLANAR,
602 .hshift = 1,
603 .vshift = 1,
604 },{
605 .name = "4:2:0, planar, Y-Cr-Cb",
606 .fourcc = V4L2_PIX_FMT_YVU420,
607 .btformat = BT848_COLOR_FMT_YCrCb422,
608 .depth = 12,
609 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
610 .hshift = 1,
611 .vshift = 1,
612 },{
613 .name = "4:1:1, planar, Y-Cb-Cr",
614 .fourcc = V4L2_PIX_FMT_YUV411P,
615 .btformat = BT848_COLOR_FMT_YCrCb411,
616 .depth = 12,
617 .flags = FORMAT_FLAGS_PLANAR,
618 .hshift = 2,
619 .vshift = 0,
620 },{
621 .name = "4:1:0, planar, Y-Cb-Cr",
622 .fourcc = V4L2_PIX_FMT_YUV410,
623 .btformat = BT848_COLOR_FMT_YCrCb411,
624 .depth = 9,
625 .flags = FORMAT_FLAGS_PLANAR,
626 .hshift = 2,
627 .vshift = 2,
628 },{
629 .name = "4:1:0, planar, Y-Cr-Cb",
630 .fourcc = V4L2_PIX_FMT_YVU410,
631 .btformat = BT848_COLOR_FMT_YCrCb411,
632 .depth = 9,
633 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
634 .hshift = 2,
635 .vshift = 2,
636 },{
637 .name = "raw scanlines",
638 .fourcc = -1,
639 .btformat = BT848_COLOR_FMT_RAW,
640 .depth = 8,
641 .flags = FORMAT_FLAGS_RAW,
642 }
643 };
644 static const unsigned int FORMATS = ARRAY_SIZE(formats);
645
646 /* ----------------------------------------------------------------------- */
647 /* resource management */
648
649 /*
650 RESOURCE_ allocated by freed by
651
652 VIDEO_READ bttv_read 1) bttv_read 2)
653
654 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
655 VIDIOC_QBUF 1) bttv_release
656 VIDIOCMCAPTURE 1)
657
658 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
659 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
660 3) bttv_release
661
662 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
663 VIDIOC_QBUF 1) bttv_release
664 bttv_read, bttv_poll 1) 4)
665
666 1) The resource must be allocated when we enter buffer prepare functions
667 and remain allocated while buffers are in the DMA queue.
668 2) This is a single frame read.
669 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
670 RESOURCE_OVERLAY is allocated.
671 4) This is a continuous read, implies VIDIOC_STREAMON.
672
673 Note this driver permits video input and standard changes regardless if
674 resources are allocated.
675 */
676
677 #define VBI_RESOURCES (RESOURCE_VBI)
678 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
679 RESOURCE_VIDEO_STREAM | \
680 RESOURCE_OVERLAY)
681
682 static
683 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
684 {
685 int xbits; /* mutual exclusive resources */
686
687 if (fh->resources & bit)
688 /* have it already allocated */
689 return 1;
690
691 xbits = bit;
692 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
693 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
694
695 /* is it free? */
696 if (btv->resources & xbits) {
697 /* no, someone else uses it */
698 goto fail;
699 }
700
701 if ((bit & VIDEO_RESOURCES)
702 && 0 == (btv->resources & VIDEO_RESOURCES)) {
703 /* Do crop - use current, don't - use default parameters. */
704 __s32 top = btv->crop[!!fh->do_crop].rect.top;
705
706 if (btv->vbi_end > top)
707 goto fail;
708
709 /* We cannot capture the same line as video and VBI data.
710 Claim scan lines crop[].rect.top to bottom. */
711 btv->crop_start = top;
712 } else if (bit & VBI_RESOURCES) {
713 __s32 end = fh->vbi_fmt.end;
714
715 if (end > btv->crop_start)
716 goto fail;
717
718 /* Claim scan lines above fh->vbi_fmt.end. */
719 btv->vbi_end = end;
720 }
721
722 /* it's free, grab it */
723 fh->resources |= bit;
724 btv->resources |= bit;
725 return 1;
726
727 fail:
728 return 0;
729 }
730
731 static
732 int check_btres(struct bttv_fh *fh, int bit)
733 {
734 return (fh->resources & bit);
735 }
736
737 static
738 int locked_btres(struct bttv *btv, int bit)
739 {
740 return (btv->resources & bit);
741 }
742
743 /* Call with btv->lock down. */
744 static void
745 disclaim_vbi_lines(struct bttv *btv)
746 {
747 btv->vbi_end = 0;
748 }
749
750 /* Call with btv->lock down. */
751 static void
752 disclaim_video_lines(struct bttv *btv)
753 {
754 const struct bttv_tvnorm *tvnorm;
755 u8 crop;
756
757 tvnorm = &bttv_tvnorms[btv->tvnorm];
758 btv->crop_start = tvnorm->cropcap.bounds.top
759 + tvnorm->cropcap.bounds.height;
760
761 /* VBI capturing ends at VDELAY, start of video capturing, no
762 matter how many lines the VBI RISC program expects. When video
763 capturing is off, it shall no longer "preempt" VBI capturing,
764 so we set VDELAY to maximum. */
765 crop = btread(BT848_E_CROP) | 0xc0;
766 btwrite(crop, BT848_E_CROP);
767 btwrite(0xfe, BT848_E_VDELAY_LO);
768 btwrite(crop, BT848_O_CROP);
769 btwrite(0xfe, BT848_O_VDELAY_LO);
770 }
771
772 static
773 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
774 {
775 if ((fh->resources & bits) != bits) {
776 /* trying to free resources not allocated by us ... */
777 pr_err("BUG! (btres)\n");
778 }
779 fh->resources &= ~bits;
780 btv->resources &= ~bits;
781
782 bits = btv->resources;
783
784 if (0 == (bits & VIDEO_RESOURCES))
785 disclaim_video_lines(btv);
786
787 if (0 == (bits & VBI_RESOURCES))
788 disclaim_vbi_lines(btv);
789 }
790
791 /* ----------------------------------------------------------------------- */
792 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
793
794 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
795 PLL_X = Reference pre-divider (0=1, 1=2)
796 PLL_C = Post divider (0=6, 1=4)
797 PLL_I = Integer input
798 PLL_F = Fractional input
799
800 F_input = 28.636363 MHz:
801 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
802 */
803
804 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
805 {
806 unsigned char fl, fh, fi;
807
808 /* prevent overflows */
809 fin/=4;
810 fout/=4;
811
812 fout*=12;
813 fi=fout/fin;
814
815 fout=(fout%fin)*256;
816 fh=fout/fin;
817
818 fout=(fout%fin)*256;
819 fl=fout/fin;
820
821 btwrite(fl, BT848_PLL_F_LO);
822 btwrite(fh, BT848_PLL_F_HI);
823 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
824 }
825
826 static void set_pll(struct bttv *btv)
827 {
828 int i;
829
830 if (!btv->pll.pll_crystal)
831 return;
832
833 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
834 dprintk("%d: PLL: no change required\n", btv->c.nr);
835 return;
836 }
837
838 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
839 /* no PLL needed */
840 if (btv->pll.pll_current == 0)
841 return;
842 if (bttv_verbose)
843 pr_info("%d: PLL can sleep, using XTAL (%d)\n",
844 btv->c.nr, btv->pll.pll_ifreq);
845 btwrite(0x00,BT848_TGCTRL);
846 btwrite(0x00,BT848_PLL_XCI);
847 btv->pll.pll_current = 0;
848 return;
849 }
850
851 if (bttv_verbose)
852 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
853 btv->c.nr,
854 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
855 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
856
857 for (i=0; i<10; i++) {
858 /* Let other people run while the PLL stabilizes */
859 msleep(10);
860
861 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
862 btwrite(0,BT848_DSTATUS);
863 } else {
864 btwrite(0x08,BT848_TGCTRL);
865 btv->pll.pll_current = btv->pll.pll_ofreq;
866 if (bttv_verbose)
867 pr_info("PLL set ok\n");
868 return;
869 }
870 }
871 btv->pll.pll_current = -1;
872 if (bttv_verbose)
873 pr_info("Setting PLL failed\n");
874 return;
875 }
876
877 /* used to switch between the bt848's analog/digital video capture modes */
878 static void bt848A_set_timing(struct bttv *btv)
879 {
880 int i, len;
881 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
882 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
883
884 if (btv->input == btv->dig) {
885 dprintk("%d: load digital timing table (table_idx=%d)\n",
886 btv->c.nr,table_idx);
887
888 /* timing change...reset timing generator address */
889 btwrite(0x00, BT848_TGCTRL);
890 btwrite(0x02, BT848_TGCTRL);
891 btwrite(0x00, BT848_TGCTRL);
892
893 len=SRAM_Table[table_idx][0];
894 for(i = 1; i <= len; i++)
895 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
896 btv->pll.pll_ofreq = 27000000;
897
898 set_pll(btv);
899 btwrite(0x11, BT848_TGCTRL);
900 btwrite(0x41, BT848_DVSIF);
901 } else {
902 btv->pll.pll_ofreq = fsc;
903 set_pll(btv);
904 btwrite(0x0, BT848_DVSIF);
905 }
906 }
907
908 /* ----------------------------------------------------------------------- */
909
910 static void bt848_bright(struct bttv *btv, int bright)
911 {
912 int value;
913
914 // printk("set bright: %d\n", bright); // DEBUG
915 btv->bright = bright;
916
917 /* We want -128 to 127 we get 0-65535 */
918 value = (bright >> 8) - 128;
919 btwrite(value & 0xff, BT848_BRIGHT);
920 }
921
922 static void bt848_hue(struct bttv *btv, int hue)
923 {
924 int value;
925
926 btv->hue = hue;
927
928 /* -128 to 127 */
929 value = (hue >> 8) - 128;
930 btwrite(value & 0xff, BT848_HUE);
931 }
932
933 static void bt848_contrast(struct bttv *btv, int cont)
934 {
935 int value,hibit;
936
937 btv->contrast = cont;
938
939 /* 0-511 */
940 value = (cont >> 7);
941 hibit = (value >> 6) & 4;
942 btwrite(value & 0xff, BT848_CONTRAST_LO);
943 btaor(hibit, ~4, BT848_E_CONTROL);
944 btaor(hibit, ~4, BT848_O_CONTROL);
945 }
946
947 static void bt848_sat(struct bttv *btv, int color)
948 {
949 int val_u,val_v,hibits;
950
951 btv->saturation = color;
952
953 /* 0-511 for the color */
954 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
955 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
956 hibits = (val_u >> 7) & 2;
957 hibits |= (val_v >> 8) & 1;
958 btwrite(val_u & 0xff, BT848_SAT_U_LO);
959 btwrite(val_v & 0xff, BT848_SAT_V_LO);
960 btaor(hibits, ~3, BT848_E_CONTROL);
961 btaor(hibits, ~3, BT848_O_CONTROL);
962 }
963
964 /* ----------------------------------------------------------------------- */
965
966 static int
967 video_mux(struct bttv *btv, unsigned int input)
968 {
969 int mux,mask2;
970
971 if (input >= bttv_tvcards[btv->c.type].video_inputs)
972 return -EINVAL;
973
974 /* needed by RemoteVideo MX */
975 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
976 if (mask2)
977 gpio_inout(mask2,mask2);
978
979 if (input == btv->svhs) {
980 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
981 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
982 } else {
983 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
984 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
985 }
986 mux = bttv_muxsel(btv, input);
987 btaor(mux<<5, ~(3<<5), BT848_IFORM);
988 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
989
990 /* card specific hook */
991 if(bttv_tvcards[btv->c.type].muxsel_hook)
992 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
993 return 0;
994 }
995
996 static char *audio_modes[] = {
997 "audio: tuner", "audio: radio", "audio: extern",
998 "audio: intern", "audio: mute"
999 };
1000
1001 static void
1002 audio_mux_gpio(struct bttv *btv, int input, int mute)
1003 {
1004 int gpio_val, signal, mute_gpio;
1005
1006 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1007 bttv_tvcards[btv->c.type].gpiomask);
1008 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1009
1010 /* automute */
1011 mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
1012 && !btv->has_radio_tuner);
1013
1014 if (mute_gpio)
1015 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1016 else
1017 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1018
1019 switch (btv->c.type) {
1020 case BTTV_BOARD_VOODOOTV_FM:
1021 case BTTV_BOARD_VOODOOTV_200:
1022 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1023 break;
1024
1025 default:
1026 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1027 }
1028
1029 if (bttv_gpio)
1030 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
1031 }
1032
1033 static int
1034 audio_mute(struct bttv *btv, int mute)
1035 {
1036 struct v4l2_ctrl *ctrl;
1037
1038 audio_mux_gpio(btv, btv->audio_input, mute);
1039
1040 if (btv->sd_msp34xx) {
1041 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1042 if (ctrl)
1043 v4l2_ctrl_s_ctrl(ctrl, mute);
1044 }
1045 if (btv->sd_tvaudio) {
1046 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1047 if (ctrl)
1048 v4l2_ctrl_s_ctrl(ctrl, mute);
1049 }
1050 if (btv->sd_tda7432) {
1051 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1052 if (ctrl)
1053 v4l2_ctrl_s_ctrl(ctrl, mute);
1054 }
1055 return 0;
1056 }
1057
1058 static int
1059 audio_input(struct bttv *btv, int input)
1060 {
1061 audio_mux_gpio(btv, input, btv->mute);
1062
1063 if (btv->sd_msp34xx) {
1064 u32 in;
1065
1066 /* Note: the inputs tuner/radio/extern/intern are translated
1067 to msp routings. This assumes common behavior for all msp3400
1068 based TV cards. When this assumption fails, then the
1069 specific MSP routing must be added to the card table.
1070 For now this is sufficient. */
1071 switch (input) {
1072 case TVAUDIO_INPUT_RADIO:
1073 /* Some boards need the msp do to the radio demod */
1074 if (btv->radio_uses_msp_demodulator) {
1075 in = MSP_INPUT_DEFAULT;
1076 break;
1077 }
1078 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1079 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1080 break;
1081 case TVAUDIO_INPUT_EXTERN:
1082 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1083 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1084 break;
1085 case TVAUDIO_INPUT_INTERN:
1086 /* Yes, this is the same input as for RADIO. I doubt
1087 if this is ever used. The only board with an INTERN
1088 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1089 that was tested. My guess is that the whole INTERN
1090 input does not work. */
1091 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1092 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1093 break;
1094 case TVAUDIO_INPUT_TUNER:
1095 default:
1096 /* This is the only card that uses TUNER2, and afaik,
1097 is the only difference between the VOODOOTV_FM
1098 and VOODOOTV_200 */
1099 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1100 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1101 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1102 else
1103 in = MSP_INPUT_DEFAULT;
1104 break;
1105 }
1106 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
1107 in, MSP_OUTPUT_DEFAULT, 0);
1108 }
1109 if (btv->sd_tvaudio) {
1110 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
1111 input, 0, 0);
1112 }
1113 return 0;
1114 }
1115
1116 static void
1117 bttv_crop_calc_limits(struct bttv_crop *c)
1118 {
1119 /* Scale factor min. 1:1, max. 16:1. Min. image size
1120 48 x 32. Scaled width must be a multiple of 4. */
1121
1122 if (1) {
1123 /* For bug compatibility with VIDIOCGCAP and image
1124 size checks in earlier driver versions. */
1125 c->min_scaled_width = 48;
1126 c->min_scaled_height = 32;
1127 } else {
1128 c->min_scaled_width =
1129 (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
1130 c->min_scaled_height =
1131 max_t(unsigned int, 32, c->rect.height >> 4);
1132 }
1133
1134 c->max_scaled_width = c->rect.width & ~3;
1135 c->max_scaled_height = c->rect.height;
1136 }
1137
1138 static void
1139 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1140 {
1141 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1142 bttv_crop_calc_limits(c);
1143 }
1144
1145 /* Call with btv->lock down. */
1146 static int
1147 set_tvnorm(struct bttv *btv, unsigned int norm)
1148 {
1149 const struct bttv_tvnorm *tvnorm;
1150 v4l2_std_id id;
1151
1152 BUG_ON(norm >= BTTV_TVNORMS);
1153 BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1154
1155 tvnorm = &bttv_tvnorms[norm];
1156
1157 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1158 sizeof (tvnorm->cropcap))) {
1159 bttv_crop_reset(&btv->crop[0], norm);
1160 btv->crop[1] = btv->crop[0]; /* current = default */
1161
1162 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1163 btv->crop_start = tvnorm->cropcap.bounds.top
1164 + tvnorm->cropcap.bounds.height;
1165 }
1166 }
1167
1168 btv->tvnorm = norm;
1169
1170 btwrite(tvnorm->adelay, BT848_ADELAY);
1171 btwrite(tvnorm->bdelay, BT848_BDELAY);
1172 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1173 BT848_IFORM);
1174 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1175 btwrite(1, BT848_VBI_PACK_DEL);
1176 bt848A_set_timing(btv);
1177
1178 switch (btv->c.type) {
1179 case BTTV_BOARD_VOODOOTV_FM:
1180 case BTTV_BOARD_VOODOOTV_200:
1181 bttv_tda9880_setnorm(btv, gpio_read());
1182 break;
1183 }
1184 id = tvnorm->v4l2_id;
1185 bttv_call_all(btv, video, s_std, id);
1186
1187 return 0;
1188 }
1189
1190 /* Call with btv->lock down. */
1191 static void
1192 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1193 {
1194 unsigned long flags;
1195
1196 btv->input = input;
1197 if (irq_iswitch) {
1198 spin_lock_irqsave(&btv->s_lock,flags);
1199 if (btv->curr.frame_irq) {
1200 /* active capture -> delayed input switch */
1201 btv->new_input = input;
1202 } else {
1203 video_mux(btv,input);
1204 }
1205 spin_unlock_irqrestore(&btv->s_lock,flags);
1206 } else {
1207 video_mux(btv,input);
1208 }
1209 btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1210 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
1211 audio_input(btv, btv->audio_input);
1212 set_tvnorm(btv, norm);
1213 }
1214
1215 static void init_irqreg(struct bttv *btv)
1216 {
1217 /* clear status */
1218 btwrite(0xfffffUL, BT848_INT_STAT);
1219
1220 if (bttv_tvcards[btv->c.type].no_video) {
1221 /* i2c only */
1222 btwrite(BT848_INT_I2CDONE,
1223 BT848_INT_MASK);
1224 } else {
1225 /* full video */
1226 btwrite((btv->triton1) |
1227 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1228 BT848_INT_SCERR |
1229 (fdsr ? BT848_INT_FDSR : 0) |
1230 BT848_INT_RISCI | BT848_INT_OCERR |
1231 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1232 BT848_INT_I2CDONE,
1233 BT848_INT_MASK);
1234 }
1235 }
1236
1237 static void init_bt848(struct bttv *btv)
1238 {
1239 if (bttv_tvcards[btv->c.type].no_video) {
1240 /* very basic init only */
1241 init_irqreg(btv);
1242 return;
1243 }
1244
1245 btwrite(0x00, BT848_CAP_CTL);
1246 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1247 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1248
1249 /* set planar and packed mode trigger points and */
1250 /* set rising edge of inverted GPINTR pin as irq trigger */
1251 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1252 BT848_GPIO_DMA_CTL_PLTP1_16|
1253 BT848_GPIO_DMA_CTL_PLTP23_16|
1254 BT848_GPIO_DMA_CTL_GPINTC|
1255 BT848_GPIO_DMA_CTL_GPINTI,
1256 BT848_GPIO_DMA_CTL);
1257
1258 btwrite(0x20, BT848_E_VSCALE_HI);
1259 btwrite(0x20, BT848_O_VSCALE_HI);
1260
1261 v4l2_ctrl_handler_setup(&btv->ctrl_handler);
1262
1263 /* interrupt */
1264 init_irqreg(btv);
1265 }
1266
1267 static void bttv_reinit_bt848(struct bttv *btv)
1268 {
1269 unsigned long flags;
1270
1271 if (bttv_verbose)
1272 pr_info("%d: reset, reinitialize\n", btv->c.nr);
1273 spin_lock_irqsave(&btv->s_lock,flags);
1274 btv->errors=0;
1275 bttv_set_dma(btv,0);
1276 spin_unlock_irqrestore(&btv->s_lock,flags);
1277
1278 init_bt848(btv);
1279 btv->pll.pll_current = -1;
1280 set_input(btv, btv->input, btv->tvnorm);
1281 }
1282
1283 static int bttv_s_ctrl(struct v4l2_ctrl *c)
1284 {
1285 struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
1286 int val;
1287
1288 switch (c->id) {
1289 case V4L2_CID_BRIGHTNESS:
1290 bt848_bright(btv, c->val);
1291 break;
1292 case V4L2_CID_HUE:
1293 bt848_hue(btv, c->val);
1294 break;
1295 case V4L2_CID_CONTRAST:
1296 bt848_contrast(btv, c->val);
1297 break;
1298 case V4L2_CID_SATURATION:
1299 bt848_sat(btv, c->val);
1300 break;
1301 case V4L2_CID_COLOR_KILLER:
1302 if (c->val) {
1303 btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1304 btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1305 } else {
1306 btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1307 btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1308 }
1309 break;
1310 case V4L2_CID_AUDIO_MUTE:
1311 audio_mute(btv, c->val);
1312 btv->mute = c->val;
1313 break;
1314 case V4L2_CID_AUDIO_VOLUME:
1315 btv->volume_gpio(btv, c->val);
1316 break;
1317
1318 case V4L2_CID_CHROMA_AGC:
1319 val = c->val ? BT848_SCLOOP_CAGC : 0;
1320 btwrite(val, BT848_E_SCLOOP);
1321 btwrite(val, BT848_O_SCLOOP);
1322 break;
1323 case V4L2_CID_PRIVATE_COMBFILTER:
1324 btv->opt_combfilter = c->val;
1325 break;
1326 case V4L2_CID_PRIVATE_LUMAFILTER:
1327 if (c->val) {
1328 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1329 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1330 } else {
1331 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1332 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1333 }
1334 break;
1335 case V4L2_CID_PRIVATE_AUTOMUTE:
1336 btv->opt_automute = c->val;
1337 break;
1338 case V4L2_CID_PRIVATE_AGC_CRUSH:
1339 btwrite(BT848_ADC_RESERVED |
1340 (c->val ? BT848_ADC_CRUSH : 0),
1341 BT848_ADC);
1342 break;
1343 case V4L2_CID_PRIVATE_VCR_HACK:
1344 btv->opt_vcr_hack = c->val;
1345 break;
1346 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1347 btwrite(c->val, BT848_WC_UP);
1348 break;
1349 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1350 btwrite(c->val, BT848_WC_DOWN);
1351 break;
1352 case V4L2_CID_PRIVATE_UV_RATIO:
1353 btv->opt_uv_ratio = c->val;
1354 bt848_sat(btv, btv->saturation);
1355 break;
1356 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1357 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
1358 break;
1359 case V4L2_CID_PRIVATE_CORING:
1360 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
1361 break;
1362 default:
1363 return -EINVAL;
1364 }
1365 return 0;
1366 }
1367
1368 /* ----------------------------------------------------------------------- */
1369
1370 static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
1371 .s_ctrl = bttv_s_ctrl,
1372 };
1373
1374 static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
1375 .ops = &bttv_ctrl_ops,
1376 .id = V4L2_CID_PRIVATE_COMBFILTER,
1377 .name = "Comb Filter",
1378 .type = V4L2_CTRL_TYPE_BOOLEAN,
1379 .min = 0,
1380 .max = 1,
1381 .step = 1,
1382 .def = 1,
1383 };
1384
1385 static struct v4l2_ctrl_config bttv_ctrl_automute = {
1386 .ops = &bttv_ctrl_ops,
1387 .id = V4L2_CID_PRIVATE_AUTOMUTE,
1388 .name = "Auto Mute",
1389 .type = V4L2_CTRL_TYPE_BOOLEAN,
1390 .min = 0,
1391 .max = 1,
1392 .step = 1,
1393 .def = 1,
1394 };
1395
1396 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
1397 .ops = &bttv_ctrl_ops,
1398 .id = V4L2_CID_PRIVATE_LUMAFILTER,
1399 .name = "Luma Decimation Filter",
1400 .type = V4L2_CTRL_TYPE_BOOLEAN,
1401 .min = 0,
1402 .max = 1,
1403 .step = 1,
1404 .def = 1,
1405 };
1406
1407 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
1408 .ops = &bttv_ctrl_ops,
1409 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
1410 .name = "AGC Crush",
1411 .type = V4L2_CTRL_TYPE_BOOLEAN,
1412 .min = 0,
1413 .max = 1,
1414 .step = 1,
1415 .def = 1,
1416 };
1417
1418 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
1419 .ops = &bttv_ctrl_ops,
1420 .id = V4L2_CID_PRIVATE_VCR_HACK,
1421 .name = "VCR Hack",
1422 .type = V4L2_CTRL_TYPE_BOOLEAN,
1423 .min = 0,
1424 .max = 1,
1425 .step = 1,
1426 .def = 1,
1427 };
1428
1429 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
1430 .ops = &bttv_ctrl_ops,
1431 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
1432 .name = "Whitecrush Lower",
1433 .type = V4L2_CTRL_TYPE_INTEGER,
1434 .min = 0,
1435 .max = 255,
1436 .step = 1,
1437 .def = 0x7f,
1438 };
1439
1440 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
1441 .ops = &bttv_ctrl_ops,
1442 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
1443 .name = "Whitecrush Upper",
1444 .type = V4L2_CTRL_TYPE_INTEGER,
1445 .min = 0,
1446 .max = 255,
1447 .step = 1,
1448 .def = 0xcf,
1449 };
1450
1451 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
1452 .ops = &bttv_ctrl_ops,
1453 .id = V4L2_CID_PRIVATE_UV_RATIO,
1454 .name = "UV Ratio",
1455 .type = V4L2_CTRL_TYPE_INTEGER,
1456 .min = 0,
1457 .max = 100,
1458 .step = 1,
1459 .def = 50,
1460 };
1461
1462 static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
1463 .ops = &bttv_ctrl_ops,
1464 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
1465 .name = "Full Luma Range",
1466 .type = V4L2_CTRL_TYPE_BOOLEAN,
1467 .min = 0,
1468 .max = 1,
1469 .step = 1,
1470 };
1471
1472 static struct v4l2_ctrl_config bttv_ctrl_coring = {
1473 .ops = &bttv_ctrl_ops,
1474 .id = V4L2_CID_PRIVATE_CORING,
1475 .name = "Coring",
1476 .type = V4L2_CTRL_TYPE_INTEGER,
1477 .min = 0,
1478 .max = 3,
1479 .step = 1,
1480 };
1481
1482
1483 /* ----------------------------------------------------------------------- */
1484
1485 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1486 {
1487 unsigned int outbits, data;
1488 outbits = btread(BT848_GPIO_OUT_EN);
1489 data = btread(BT848_GPIO_DATA);
1490 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1491 btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
1492 }
1493
1494 static void bttv_field_count(struct bttv *btv)
1495 {
1496 int need_count = 0;
1497
1498 if (btv->users)
1499 need_count++;
1500
1501 if (need_count) {
1502 /* start field counter */
1503 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1504 } else {
1505 /* stop field counter */
1506 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1507 btv->field_count = 0;
1508 }
1509 }
1510
1511 static const struct bttv_format*
1512 format_by_fourcc(int fourcc)
1513 {
1514 unsigned int i;
1515
1516 for (i = 0; i < FORMATS; i++) {
1517 if (-1 == formats[i].fourcc)
1518 continue;
1519 if (formats[i].fourcc == fourcc)
1520 return formats+i;
1521 }
1522 return NULL;
1523 }
1524
1525 /* ----------------------------------------------------------------------- */
1526 /* misc helpers */
1527
1528 static int
1529 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1530 struct bttv_buffer *new)
1531 {
1532 struct bttv_buffer *old;
1533 unsigned long flags;
1534
1535 dprintk("switch_overlay: enter [new=%p]\n", new);
1536 if (new)
1537 new->vb.state = VIDEOBUF_DONE;
1538 spin_lock_irqsave(&btv->s_lock,flags);
1539 old = btv->screen;
1540 btv->screen = new;
1541 btv->loop_irq |= 1;
1542 bttv_set_dma(btv, 0x03);
1543 spin_unlock_irqrestore(&btv->s_lock,flags);
1544 if (NULL != old) {
1545 dprintk("switch_overlay: old=%p state is %d\n",
1546 old, old->vb.state);
1547 bttv_dma_free(&fh->cap,btv, old);
1548 kfree(old);
1549 }
1550 if (NULL == new)
1551 free_btres_lock(btv,fh,RESOURCE_OVERLAY);
1552 dprintk("switch_overlay: done\n");
1553 return 0;
1554 }
1555
1556 /* ----------------------------------------------------------------------- */
1557 /* video4linux (1) interface */
1558
1559 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1560 struct bttv_buffer *buf,
1561 const struct bttv_format *fmt,
1562 unsigned int width, unsigned int height,
1563 enum v4l2_field field)
1564 {
1565 struct bttv_fh *fh = q->priv_data;
1566 int redo_dma_risc = 0;
1567 struct bttv_crop c;
1568 int norm;
1569 int rc;
1570
1571 /* check settings */
1572 if (NULL == fmt)
1573 return -EINVAL;
1574 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1575 width = RAW_BPL;
1576 height = RAW_LINES*2;
1577 if (width*height > buf->vb.bsize)
1578 return -EINVAL;
1579 buf->vb.size = buf->vb.bsize;
1580
1581 /* Make sure tvnorm and vbi_end remain consistent
1582 until we're done. */
1583
1584 norm = btv->tvnorm;
1585
1586 /* In this mode capturing always starts at defrect.top
1587 (default VDELAY), ignoring cropping parameters. */
1588 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1589 return -EINVAL;
1590 }
1591
1592 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1593 } else {
1594 norm = btv->tvnorm;
1595 c = btv->crop[!!fh->do_crop];
1596
1597 if (width < c.min_scaled_width ||
1598 width > c.max_scaled_width ||
1599 height < c.min_scaled_height)
1600 return -EINVAL;
1601
1602 switch (field) {
1603 case V4L2_FIELD_TOP:
1604 case V4L2_FIELD_BOTTOM:
1605 case V4L2_FIELD_ALTERNATE:
1606 /* btv->crop counts frame lines. Max. scale
1607 factor is 16:1 for frames, 8:1 for fields. */
1608 if (height * 2 > c.max_scaled_height)
1609 return -EINVAL;
1610 break;
1611
1612 default:
1613 if (height > c.max_scaled_height)
1614 return -EINVAL;
1615 break;
1616 }
1617
1618 buf->vb.size = (width * height * fmt->depth) >> 3;
1619 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1620 return -EINVAL;
1621 }
1622
1623 /* alloc + fill struct bttv_buffer (if changed) */
1624 if (buf->vb.width != width || buf->vb.height != height ||
1625 buf->vb.field != field ||
1626 buf->tvnorm != norm || buf->fmt != fmt ||
1627 buf->crop.top != c.rect.top ||
1628 buf->crop.left != c.rect.left ||
1629 buf->crop.width != c.rect.width ||
1630 buf->crop.height != c.rect.height) {
1631 buf->vb.width = width;
1632 buf->vb.height = height;
1633 buf->vb.field = field;
1634 buf->tvnorm = norm;
1635 buf->fmt = fmt;
1636 buf->crop = c.rect;
1637 redo_dma_risc = 1;
1638 }
1639
1640 /* alloc risc memory */
1641 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1642 redo_dma_risc = 1;
1643 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1644 goto fail;
1645 }
1646
1647 if (redo_dma_risc)
1648 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1649 goto fail;
1650
1651 buf->vb.state = VIDEOBUF_PREPARED;
1652 return 0;
1653
1654 fail:
1655 bttv_dma_free(q,btv,buf);
1656 return rc;
1657 }
1658
1659 static int
1660 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1661 {
1662 struct bttv_fh *fh = q->priv_data;
1663
1664 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1665 if (0 == *count)
1666 *count = gbuffers;
1667 if (*size * *count > gbuffers * gbufsize)
1668 *count = (gbuffers * gbufsize) / *size;
1669 return 0;
1670 }
1671
1672 static int
1673 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1674 enum v4l2_field field)
1675 {
1676 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1677 struct bttv_fh *fh = q->priv_data;
1678
1679 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1680 fh->width, fh->height, field);
1681 }
1682
1683 static void
1684 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1685 {
1686 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1687 struct bttv_fh *fh = q->priv_data;
1688 struct bttv *btv = fh->btv;
1689
1690 buf->vb.state = VIDEOBUF_QUEUED;
1691 list_add_tail(&buf->vb.queue,&btv->capture);
1692 if (!btv->curr.frame_irq) {
1693 btv->loop_irq |= 1;
1694 bttv_set_dma(btv, 0x03);
1695 }
1696 }
1697
1698 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1699 {
1700 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1701 struct bttv_fh *fh = q->priv_data;
1702
1703 bttv_dma_free(q,fh->btv,buf);
1704 }
1705
1706 static struct videobuf_queue_ops bttv_video_qops = {
1707 .buf_setup = buffer_setup,
1708 .buf_prepare = buffer_prepare,
1709 .buf_queue = buffer_queue,
1710 .buf_release = buffer_release,
1711 };
1712
1713 static void radio_enable(struct bttv *btv)
1714 {
1715 /* Switch to the radio tuner */
1716 if (!btv->has_radio_tuner) {
1717 btv->has_radio_tuner = 1;
1718 bttv_call_all(btv, tuner, s_radio);
1719 btv->audio_input = TVAUDIO_INPUT_RADIO;
1720 audio_input(btv, btv->audio_input);
1721 }
1722 }
1723
1724 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
1725 {
1726 struct bttv_fh *fh = priv;
1727 struct bttv *btv = fh->btv;
1728 unsigned int i;
1729
1730 for (i = 0; i < BTTV_TVNORMS; i++)
1731 if (id & bttv_tvnorms[i].v4l2_id)
1732 break;
1733 if (i == BTTV_TVNORMS)
1734 return -EINVAL;
1735 btv->std = id;
1736 set_tvnorm(btv, i);
1737 return 0;
1738 }
1739
1740 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
1741 {
1742 struct bttv_fh *fh = priv;
1743 struct bttv *btv = fh->btv;
1744
1745 *id = btv->std;
1746 return 0;
1747 }
1748
1749 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1750 {
1751 struct bttv_fh *fh = f;
1752 struct bttv *btv = fh->btv;
1753
1754 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1755 *id &= V4L2_STD_625_50;
1756 else
1757 *id &= V4L2_STD_525_60;
1758 return 0;
1759 }
1760
1761 static int bttv_enum_input(struct file *file, void *priv,
1762 struct v4l2_input *i)
1763 {
1764 struct bttv_fh *fh = priv;
1765 struct bttv *btv = fh->btv;
1766
1767 if (i->index >= bttv_tvcards[btv->c.type].video_inputs)
1768 return -EINVAL;
1769
1770 i->type = V4L2_INPUT_TYPE_CAMERA;
1771 i->audioset = 0;
1772
1773 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1774 sprintf(i->name, "Television");
1775 i->type = V4L2_INPUT_TYPE_TUNER;
1776 i->tuner = 0;
1777 } else if (i->index == btv->svhs) {
1778 sprintf(i->name, "S-Video");
1779 } else {
1780 sprintf(i->name, "Composite%d", i->index);
1781 }
1782
1783 if (i->index == btv->input) {
1784 __u32 dstatus = btread(BT848_DSTATUS);
1785 if (0 == (dstatus & BT848_DSTATUS_PRES))
1786 i->status |= V4L2_IN_ST_NO_SIGNAL;
1787 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1788 i->status |= V4L2_IN_ST_NO_H_LOCK;
1789 }
1790
1791 i->std = BTTV_NORMS;
1792 return 0;
1793 }
1794
1795 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1796 {
1797 struct bttv_fh *fh = priv;
1798 struct bttv *btv = fh->btv;
1799
1800 *i = btv->input;
1801
1802 return 0;
1803 }
1804
1805 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1806 {
1807 struct bttv_fh *fh = priv;
1808 struct bttv *btv = fh->btv;
1809
1810 if (i >= bttv_tvcards[btv->c.type].video_inputs)
1811 return -EINVAL;
1812
1813 set_input(btv, i, btv->tvnorm);
1814 return 0;
1815 }
1816
1817 static int bttv_s_tuner(struct file *file, void *priv,
1818 const struct v4l2_tuner *t)
1819 {
1820 struct bttv_fh *fh = priv;
1821 struct bttv *btv = fh->btv;
1822
1823 if (t->index)
1824 return -EINVAL;
1825
1826 bttv_call_all(btv, tuner, s_tuner, t);
1827
1828 if (btv->audio_mode_gpio) {
1829 struct v4l2_tuner copy = *t;
1830
1831 btv->audio_mode_gpio(btv, &copy, 1);
1832 }
1833 return 0;
1834 }
1835
1836 static int bttv_g_frequency(struct file *file, void *priv,
1837 struct v4l2_frequency *f)
1838 {
1839 struct bttv_fh *fh = priv;
1840 struct bttv *btv = fh->btv;
1841
1842 if (f->tuner)
1843 return -EINVAL;
1844
1845 if (f->type == V4L2_TUNER_RADIO)
1846 radio_enable(btv);
1847 f->frequency = f->type == V4L2_TUNER_RADIO ?
1848 btv->radio_freq : btv->tv_freq;
1849
1850 return 0;
1851 }
1852
1853 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
1854 {
1855 struct v4l2_frequency new_freq = *f;
1856
1857 bttv_call_all(btv, tuner, s_frequency, f);
1858 /* s_frequency may clamp the frequency, so get the actual
1859 frequency before assigning radio/tv_freq. */
1860 bttv_call_all(btv, tuner, g_frequency, &new_freq);
1861 if (new_freq.type == V4L2_TUNER_RADIO) {
1862 radio_enable(btv);
1863 btv->radio_freq = new_freq.frequency;
1864 if (btv->has_tea575x) {
1865 btv->tea.freq = btv->radio_freq;
1866 snd_tea575x_set_freq(&btv->tea);
1867 }
1868 } else {
1869 btv->tv_freq = new_freq.frequency;
1870 }
1871 }
1872
1873 static int bttv_s_frequency(struct file *file, void *priv,
1874 const struct v4l2_frequency *f)
1875 {
1876 struct bttv_fh *fh = priv;
1877 struct bttv *btv = fh->btv;
1878
1879 if (f->tuner)
1880 return -EINVAL;
1881
1882 bttv_set_frequency(btv, f);
1883 return 0;
1884 }
1885
1886 static int bttv_log_status(struct file *file, void *f)
1887 {
1888 struct video_device *vdev = video_devdata(file);
1889 struct bttv_fh *fh = f;
1890 struct bttv *btv = fh->btv;
1891
1892 v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
1893 bttv_call_all(btv, core, log_status);
1894 return 0;
1895 }
1896
1897 #ifdef CONFIG_VIDEO_ADV_DEBUG
1898 static int bttv_g_register(struct file *file, void *f,
1899 struct v4l2_dbg_register *reg)
1900 {
1901 struct bttv_fh *fh = f;
1902 struct bttv *btv = fh->btv;
1903
1904 /* bt848 has a 12-bit register space */
1905 reg->reg &= 0xfff;
1906 reg->val = btread(reg->reg);
1907 reg->size = 1;
1908
1909 return 0;
1910 }
1911
1912 static int bttv_s_register(struct file *file, void *f,
1913 const struct v4l2_dbg_register *reg)
1914 {
1915 struct bttv_fh *fh = f;
1916 struct bttv *btv = fh->btv;
1917
1918 /* bt848 has a 12-bit register space */
1919 btwrite(reg->val, reg->reg & 0xfff);
1920
1921 return 0;
1922 }
1923 #endif
1924
1925 /* Given cropping boundaries b and the scaled width and height of a
1926 single field or frame, which must not exceed hardware limits, this
1927 function adjusts the cropping parameters c. */
1928 static void
1929 bttv_crop_adjust (struct bttv_crop * c,
1930 const struct v4l2_rect * b,
1931 __s32 width,
1932 __s32 height,
1933 enum v4l2_field field)
1934 {
1935 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
1936 __s32 max_left;
1937 __s32 max_top;
1938
1939 if (width < c->min_scaled_width) {
1940 /* Max. hor. scale factor 16:1. */
1941 c->rect.width = width * 16;
1942 } else if (width > c->max_scaled_width) {
1943 /* Min. hor. scale factor 1:1. */
1944 c->rect.width = width;
1945
1946 max_left = b->left + b->width - width;
1947 max_left = min(max_left, (__s32) MAX_HDELAY);
1948 if (c->rect.left > max_left)
1949 c->rect.left = max_left;
1950 }
1951
1952 if (height < c->min_scaled_height) {
1953 /* Max. vert. scale factor 16:1, single fields 8:1. */
1954 c->rect.height = height * 16;
1955 } else if (frame_height > c->max_scaled_height) {
1956 /* Min. vert. scale factor 1:1.
1957 Top and height count field lines times two. */
1958 c->rect.height = (frame_height + 1) & ~1;
1959
1960 max_top = b->top + b->height - c->rect.height;
1961 if (c->rect.top > max_top)
1962 c->rect.top = max_top;
1963 }
1964
1965 bttv_crop_calc_limits(c);
1966 }
1967
1968 /* Returns an error if scaling to a frame or single field with the given
1969 width and height is not possible with the current cropping parameters
1970 and width aligned according to width_mask. If adjust_size is TRUE the
1971 function may adjust the width and/or height instead, rounding width
1972 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
1973 also adjust the current cropping parameters to get closer to the
1974 desired image size. */
1975 static int
1976 limit_scaled_size_lock (struct bttv_fh * fh,
1977 __s32 * width,
1978 __s32 * height,
1979 enum v4l2_field field,
1980 unsigned int width_mask,
1981 unsigned int width_bias,
1982 int adjust_size,
1983 int adjust_crop)
1984 {
1985 struct bttv *btv = fh->btv;
1986 const struct v4l2_rect *b;
1987 struct bttv_crop *c;
1988 __s32 min_width;
1989 __s32 min_height;
1990 __s32 max_width;
1991 __s32 max_height;
1992 int rc;
1993
1994 BUG_ON((int) width_mask >= 0 ||
1995 width_bias >= (unsigned int) -width_mask);
1996
1997 /* Make sure tvnorm, vbi_end and the current cropping parameters
1998 remain consistent until we're done. */
1999
2000 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2001
2002 /* Do crop - use current, don't - use default parameters. */
2003 c = &btv->crop[!!fh->do_crop];
2004
2005 if (fh->do_crop
2006 && adjust_size
2007 && adjust_crop
2008 && !locked_btres(btv, VIDEO_RESOURCES)) {
2009 min_width = 48;
2010 min_height = 32;
2011
2012 /* We cannot scale up. When the scaled image is larger
2013 than crop.rect we adjust the crop.rect as required
2014 by the V4L2 spec, hence cropcap.bounds are our limit. */
2015 max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
2016 max_height = b->height;
2017
2018 /* We cannot capture the same line as video and VBI data.
2019 Note btv->vbi_end is really a minimum, see
2020 bttv_vbi_try_fmt(). */
2021 if (btv->vbi_end > b->top) {
2022 max_height -= btv->vbi_end - b->top;
2023 rc = -EBUSY;
2024 if (min_height > max_height)
2025 goto fail;
2026 }
2027 } else {
2028 rc = -EBUSY;
2029 if (btv->vbi_end > c->rect.top)
2030 goto fail;
2031
2032 min_width = c->min_scaled_width;
2033 min_height = c->min_scaled_height;
2034 max_width = c->max_scaled_width;
2035 max_height = c->max_scaled_height;
2036
2037 adjust_crop = 0;
2038 }
2039
2040 min_width = (min_width - width_mask - 1) & width_mask;
2041 max_width = max_width & width_mask;
2042
2043 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2044 min_height = min_height;
2045 /* Min. scale factor is 1:1. */
2046 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2047
2048 if (adjust_size) {
2049 *width = clamp(*width, min_width, max_width);
2050 *height = clamp(*height, min_height, max_height);
2051
2052 /* Round after clamping to avoid overflow. */
2053 *width = (*width + width_bias) & width_mask;
2054
2055 if (adjust_crop) {
2056 bttv_crop_adjust(c, b, *width, *height, field);
2057
2058 if (btv->vbi_end > c->rect.top) {
2059 /* Move the crop window out of the way. */
2060 c->rect.top = btv->vbi_end;
2061 }
2062 }
2063 } else {
2064 rc = -EINVAL;
2065 if (*width < min_width ||
2066 *height < min_height ||
2067 *width > max_width ||
2068 *height > max_height ||
2069 0 != (*width & ~width_mask))
2070 goto fail;
2071 }
2072
2073 rc = 0; /* success */
2074
2075 fail:
2076
2077 return rc;
2078 }
2079
2080 /* Returns an error if the given overlay window dimensions are not
2081 possible with the current cropping parameters. If adjust_size is
2082 TRUE the function may adjust the window width and/or height
2083 instead, however it always rounds the horizontal position and
2084 width as btcx_align() does. If adjust_crop is TRUE the function
2085 may also adjust the current cropping parameters to get closer
2086 to the desired window size. */
2087 static int
2088 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
2089 int adjust_size, int adjust_crop)
2090 {
2091 enum v4l2_field field;
2092 unsigned int width_mask;
2093 int rc;
2094
2095 if (win->w.width < 48)
2096 win->w.width = 48;
2097 if (win->w.height < 32)
2098 win->w.height = 32;
2099 if (win->clipcount > 2048)
2100 win->clipcount = 2048;
2101
2102 win->chromakey = 0;
2103 win->global_alpha = 0;
2104 field = win->field;
2105
2106 switch (field) {
2107 case V4L2_FIELD_TOP:
2108 case V4L2_FIELD_BOTTOM:
2109 case V4L2_FIELD_INTERLACED:
2110 break;
2111 default:
2112 field = V4L2_FIELD_ANY;
2113 break;
2114 }
2115 if (V4L2_FIELD_ANY == field) {
2116 __s32 height2;
2117
2118 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2119 field = (win->w.height > height2)
2120 ? V4L2_FIELD_INTERLACED
2121 : V4L2_FIELD_TOP;
2122 }
2123 win->field = field;
2124
2125 if (NULL == fh->ovfmt)
2126 return -EINVAL;
2127 /* 4-byte alignment. */
2128 width_mask = ~0;
2129 switch (fh->ovfmt->depth) {
2130 case 8:
2131 case 24:
2132 width_mask = ~3;
2133 break;
2134 case 16:
2135 width_mask = ~1;
2136 break;
2137 case 32:
2138 break;
2139 default:
2140 BUG();
2141 }
2142
2143 win->w.width -= win->w.left & ~width_mask;
2144 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2145
2146 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
2147 field, width_mask,
2148 /* width_bias: round down */ 0,
2149 adjust_size, adjust_crop);
2150 if (0 != rc)
2151 return rc;
2152 return 0;
2153 }
2154
2155 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
2156 struct v4l2_window *win, int fixup)
2157 {
2158 struct v4l2_clip *clips = NULL;
2159 int n,size,retval = 0;
2160
2161 if (NULL == fh->ovfmt)
2162 return -EINVAL;
2163 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2164 return -EINVAL;
2165 retval = verify_window_lock(fh, win,
2166 /* adjust_size */ fixup,
2167 /* adjust_crop */ fixup);
2168 if (0 != retval)
2169 return retval;
2170
2171 /* copy clips -- luckily v4l1 + v4l2 are binary
2172 compatible here ...*/
2173 n = win->clipcount;
2174 size = sizeof(*clips)*(n+4);
2175 clips = kmalloc(size,GFP_KERNEL);
2176 if (NULL == clips)
2177 return -ENOMEM;
2178 if (n > 0) {
2179 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2180 kfree(clips);
2181 return -EFAULT;
2182 }
2183 }
2184
2185 /* clip against screen */
2186 if (NULL != btv->fbuf.base)
2187 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2188 &win->w, clips, n);
2189 btcx_sort_clips(clips,n);
2190
2191 /* 4-byte alignments */
2192 switch (fh->ovfmt->depth) {
2193 case 8:
2194 case 24:
2195 btcx_align(&win->w, clips, n, 3);
2196 break;
2197 case 16:
2198 btcx_align(&win->w, clips, n, 1);
2199 break;
2200 case 32:
2201 /* no alignment fixups needed */
2202 break;
2203 default:
2204 BUG();
2205 }
2206
2207 kfree(fh->ov.clips);
2208 fh->ov.clips = clips;
2209 fh->ov.nclips = n;
2210
2211 fh->ov.w = win->w;
2212 fh->ov.field = win->field;
2213 fh->ov.setup_ok = 1;
2214
2215 btv->init.ov.w.width = win->w.width;
2216 btv->init.ov.w.height = win->w.height;
2217 btv->init.ov.field = win->field;
2218
2219 /* update overlay if needed */
2220 retval = 0;
2221 if (check_btres(fh, RESOURCE_OVERLAY)) {
2222 struct bttv_buffer *new;
2223
2224 new = videobuf_sg_alloc(sizeof(*new));
2225 new->crop = btv->crop[!!fh->do_crop].rect;
2226 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2227 retval = bttv_switch_overlay(btv,fh,new);
2228 }
2229 return retval;
2230 }
2231
2232 /* ----------------------------------------------------------------------- */
2233
2234 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2235 {
2236 struct videobuf_queue* q = NULL;
2237
2238 switch (fh->type) {
2239 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2240 q = &fh->cap;
2241 break;
2242 case V4L2_BUF_TYPE_VBI_CAPTURE:
2243 q = &fh->vbi;
2244 break;
2245 default:
2246 BUG();
2247 }
2248 return q;
2249 }
2250
2251 static int bttv_resource(struct bttv_fh *fh)
2252 {
2253 int res = 0;
2254
2255 switch (fh->type) {
2256 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2257 res = RESOURCE_VIDEO_STREAM;
2258 break;
2259 case V4L2_BUF_TYPE_VBI_CAPTURE:
2260 res = RESOURCE_VBI;
2261 break;
2262 default:
2263 BUG();
2264 }
2265 return res;
2266 }
2267
2268 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2269 {
2270 struct videobuf_queue *q = bttv_queue(fh);
2271 int res = bttv_resource(fh);
2272
2273 if (check_btres(fh,res))
2274 return -EBUSY;
2275 if (videobuf_queue_is_busy(q))
2276 return -EBUSY;
2277 fh->type = type;
2278 return 0;
2279 }
2280
2281 static void
2282 pix_format_set_size (struct v4l2_pix_format * f,
2283 const struct bttv_format * fmt,
2284 unsigned int width,
2285 unsigned int height)
2286 {
2287 f->width = width;
2288 f->height = height;
2289
2290 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2291 f->bytesperline = width; /* Y plane */
2292 f->sizeimage = (width * height * fmt->depth) >> 3;
2293 } else {
2294 f->bytesperline = (width * fmt->depth) >> 3;
2295 f->sizeimage = height * f->bytesperline;
2296 }
2297 }
2298
2299 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2300 struct v4l2_format *f)
2301 {
2302 struct bttv_fh *fh = priv;
2303
2304 pix_format_set_size(&f->fmt.pix, fh->fmt,
2305 fh->width, fh->height);
2306 f->fmt.pix.field = fh->cap.field;
2307 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2308 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2309
2310 return 0;
2311 }
2312
2313 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2314 struct v4l2_format *f)
2315 {
2316 struct bttv_fh *fh = priv;
2317
2318 f->fmt.win.w = fh->ov.w;
2319 f->fmt.win.field = fh->ov.field;
2320
2321 return 0;
2322 }
2323
2324 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2325 struct v4l2_format *f)
2326 {
2327 const struct bttv_format *fmt;
2328 struct bttv_fh *fh = priv;
2329 struct bttv *btv = fh->btv;
2330 enum v4l2_field field;
2331 __s32 width, height;
2332 __s32 height2;
2333 int rc;
2334
2335 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2336 if (NULL == fmt)
2337 return -EINVAL;
2338
2339 field = f->fmt.pix.field;
2340
2341 switch (field) {
2342 case V4L2_FIELD_TOP:
2343 case V4L2_FIELD_BOTTOM:
2344 case V4L2_FIELD_ALTERNATE:
2345 case V4L2_FIELD_INTERLACED:
2346 break;
2347 case V4L2_FIELD_SEQ_BT:
2348 case V4L2_FIELD_SEQ_TB:
2349 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
2350 field = V4L2_FIELD_SEQ_TB;
2351 break;
2352 }
2353 /* fall through */
2354 default: /* FIELD_ANY case */
2355 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2356 field = (f->fmt.pix.height > height2)
2357 ? V4L2_FIELD_INTERLACED
2358 : V4L2_FIELD_BOTTOM;
2359 break;
2360 }
2361
2362 width = f->fmt.pix.width;
2363 height = f->fmt.pix.height;
2364
2365 rc = limit_scaled_size_lock(fh, &width, &height, field,
2366 /* width_mask: 4 pixels */ ~3,
2367 /* width_bias: nearest */ 2,
2368 /* adjust_size */ 1,
2369 /* adjust_crop */ 0);
2370 if (0 != rc)
2371 return rc;
2372
2373 /* update data for the application */
2374 f->fmt.pix.field = field;
2375 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2376 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2377
2378 return 0;
2379 }
2380
2381 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2382 struct v4l2_format *f)
2383 {
2384 struct bttv_fh *fh = priv;
2385
2386 verify_window_lock(fh, &f->fmt.win,
2387 /* adjust_size */ 1,
2388 /* adjust_crop */ 0);
2389 return 0;
2390 }
2391
2392 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2393 struct v4l2_format *f)
2394 {
2395 int retval;
2396 const struct bttv_format *fmt;
2397 struct bttv_fh *fh = priv;
2398 struct bttv *btv = fh->btv;
2399 __s32 width, height;
2400 enum v4l2_field field;
2401
2402 retval = bttv_switch_type(fh, f->type);
2403 if (0 != retval)
2404 return retval;
2405
2406 retval = bttv_try_fmt_vid_cap(file, priv, f);
2407 if (0 != retval)
2408 return retval;
2409
2410 width = f->fmt.pix.width;
2411 height = f->fmt.pix.height;
2412 field = f->fmt.pix.field;
2413
2414 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
2415 /* width_mask: 4 pixels */ ~3,
2416 /* width_bias: nearest */ 2,
2417 /* adjust_size */ 1,
2418 /* adjust_crop */ 1);
2419 if (0 != retval)
2420 return retval;
2421
2422 f->fmt.pix.field = field;
2423
2424 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2425
2426 /* update our state informations */
2427 fh->fmt = fmt;
2428 fh->cap.field = f->fmt.pix.field;
2429 fh->cap.last = V4L2_FIELD_NONE;
2430 fh->width = f->fmt.pix.width;
2431 fh->height = f->fmt.pix.height;
2432 btv->init.fmt = fmt;
2433 btv->init.width = f->fmt.pix.width;
2434 btv->init.height = f->fmt.pix.height;
2435
2436 return 0;
2437 }
2438
2439 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2440 struct v4l2_format *f)
2441 {
2442 struct bttv_fh *fh = priv;
2443 struct bttv *btv = fh->btv;
2444
2445 if (no_overlay > 0) {
2446 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2447 return -EINVAL;
2448 }
2449
2450 return setup_window_lock(fh, btv, &f->fmt.win, 1);
2451 }
2452
2453 static int bttv_querycap(struct file *file, void *priv,
2454 struct v4l2_capability *cap)
2455 {
2456 struct video_device *vdev = video_devdata(file);
2457 struct bttv_fh *fh = priv;
2458 struct bttv *btv = fh->btv;
2459
2460 if (0 == v4l2)
2461 return -EINVAL;
2462
2463 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2464 strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card));
2465 snprintf(cap->bus_info, sizeof(cap->bus_info),
2466 "PCI:%s", pci_name(btv->c.pci));
2467 cap->capabilities =
2468 V4L2_CAP_VIDEO_CAPTURE |
2469 V4L2_CAP_READWRITE |
2470 V4L2_CAP_STREAMING |
2471 V4L2_CAP_DEVICE_CAPS;
2472 if (no_overlay <= 0)
2473 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2474 if (video_is_registered(&btv->vbi_dev))
2475 cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2476 if (video_is_registered(&btv->radio_dev))
2477 cap->capabilities |= V4L2_CAP_RADIO;
2478
2479 /*
2480 * No need to lock here: those vars are initialized during board
2481 * probe and remains untouched during the rest of the driver lifecycle
2482 */
2483 if (btv->has_saa6588)
2484 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
2485 if (btv->tuner_type != TUNER_ABSENT)
2486 cap->capabilities |= V4L2_CAP_TUNER;
2487 if (vdev->vfl_type == VFL_TYPE_GRABBER)
2488 cap->device_caps = cap->capabilities &
2489 (V4L2_CAP_VIDEO_CAPTURE |
2490 V4L2_CAP_READWRITE |
2491 V4L2_CAP_STREAMING |
2492 V4L2_CAP_VIDEO_OVERLAY |
2493 V4L2_CAP_TUNER);
2494 else if (vdev->vfl_type == VFL_TYPE_VBI)
2495 cap->device_caps = cap->capabilities &
2496 (V4L2_CAP_VBI_CAPTURE |
2497 V4L2_CAP_READWRITE |
2498 V4L2_CAP_STREAMING |
2499 V4L2_CAP_TUNER);
2500 else {
2501 cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2502 if (btv->has_saa6588)
2503 cap->device_caps |= V4L2_CAP_READWRITE |
2504 V4L2_CAP_RDS_CAPTURE;
2505 if (btv->has_tea575x)
2506 cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
2507 }
2508 return 0;
2509 }
2510
2511 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2512 {
2513 int index = -1, i;
2514
2515 for (i = 0; i < FORMATS; i++) {
2516 if (formats[i].fourcc != -1)
2517 index++;
2518 if ((unsigned int)index == f->index)
2519 break;
2520 }
2521 if (FORMATS == i)
2522 return -EINVAL;
2523
2524 f->pixelformat = formats[i].fourcc;
2525 strlcpy(f->description, formats[i].name, sizeof(f->description));
2526
2527 return i;
2528 }
2529
2530 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2531 struct v4l2_fmtdesc *f)
2532 {
2533 int rc = bttv_enum_fmt_cap_ovr(f);
2534
2535 if (rc < 0)
2536 return rc;
2537
2538 return 0;
2539 }
2540
2541 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2542 struct v4l2_fmtdesc *f)
2543 {
2544 int rc;
2545
2546 if (no_overlay > 0) {
2547 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2548 return -EINVAL;
2549 }
2550
2551 rc = bttv_enum_fmt_cap_ovr(f);
2552
2553 if (rc < 0)
2554 return rc;
2555
2556 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2557 return -EINVAL;
2558
2559 return 0;
2560 }
2561
2562 static int bttv_g_fbuf(struct file *file, void *f,
2563 struct v4l2_framebuffer *fb)
2564 {
2565 struct bttv_fh *fh = f;
2566 struct bttv *btv = fh->btv;
2567
2568 *fb = btv->fbuf;
2569 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2570 fb->flags = V4L2_FBUF_FLAG_PRIMARY;
2571 if (fh->ovfmt)
2572 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2573 return 0;
2574 }
2575
2576 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2577 {
2578 struct bttv_fh *fh = f;
2579 struct bttv *btv = fh->btv;
2580 struct bttv_buffer *new;
2581 int retval = 0;
2582
2583 if (on) {
2584 /* verify args */
2585 if (unlikely(!btv->fbuf.base)) {
2586 return -EINVAL;
2587 }
2588 if (unlikely(!fh->ov.setup_ok)) {
2589 dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
2590 retval = -EINVAL;
2591 }
2592 if (retval)
2593 return retval;
2594 }
2595
2596 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
2597 return -EBUSY;
2598
2599 if (on) {
2600 fh->ov.tvnorm = btv->tvnorm;
2601 new = videobuf_sg_alloc(sizeof(*new));
2602 new->crop = btv->crop[!!fh->do_crop].rect;
2603 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2604 } else {
2605 new = NULL;
2606 }
2607
2608 /* switch over */
2609 retval = bttv_switch_overlay(btv, fh, new);
2610 return retval;
2611 }
2612
2613 static int bttv_s_fbuf(struct file *file, void *f,
2614 const struct v4l2_framebuffer *fb)
2615 {
2616 struct bttv_fh *fh = f;
2617 struct bttv *btv = fh->btv;
2618 const struct bttv_format *fmt;
2619 int retval;
2620
2621 if (!capable(CAP_SYS_ADMIN) &&
2622 !capable(CAP_SYS_RAWIO))
2623 return -EPERM;
2624
2625 /* check args */
2626 fmt = format_by_fourcc(fb->fmt.pixelformat);
2627 if (NULL == fmt)
2628 return -EINVAL;
2629 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2630 return -EINVAL;
2631
2632 retval = -EINVAL;
2633 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2634 __s32 width = fb->fmt.width;
2635 __s32 height = fb->fmt.height;
2636
2637 retval = limit_scaled_size_lock(fh, &width, &height,
2638 V4L2_FIELD_INTERLACED,
2639 /* width_mask */ ~3,
2640 /* width_bias */ 2,
2641 /* adjust_size */ 0,
2642 /* adjust_crop */ 0);
2643 if (0 != retval)
2644 return retval;
2645 }
2646
2647 /* ok, accept it */
2648 btv->fbuf.base = fb->base;
2649 btv->fbuf.fmt.width = fb->fmt.width;
2650 btv->fbuf.fmt.height = fb->fmt.height;
2651 if (0 != fb->fmt.bytesperline)
2652 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2653 else
2654 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2655
2656 retval = 0;
2657 fh->ovfmt = fmt;
2658 btv->init.ovfmt = fmt;
2659 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2660 fh->ov.w.left = 0;
2661 fh->ov.w.top = 0;
2662 fh->ov.w.width = fb->fmt.width;
2663 fh->ov.w.height = fb->fmt.height;
2664 btv->init.ov.w.width = fb->fmt.width;
2665 btv->init.ov.w.height = fb->fmt.height;
2666
2667 kfree(fh->ov.clips);
2668 fh->ov.clips = NULL;
2669 fh->ov.nclips = 0;
2670
2671 if (check_btres(fh, RESOURCE_OVERLAY)) {
2672 struct bttv_buffer *new;
2673
2674 new = videobuf_sg_alloc(sizeof(*new));
2675 new->crop = btv->crop[!!fh->do_crop].rect;
2676 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2677 retval = bttv_switch_overlay(btv, fh, new);
2678 }
2679 }
2680 return retval;
2681 }
2682
2683 static int bttv_reqbufs(struct file *file, void *priv,
2684 struct v4l2_requestbuffers *p)
2685 {
2686 struct bttv_fh *fh = priv;
2687 return videobuf_reqbufs(bttv_queue(fh), p);
2688 }
2689
2690 static int bttv_querybuf(struct file *file, void *priv,
2691 struct v4l2_buffer *b)
2692 {
2693 struct bttv_fh *fh = priv;
2694 return videobuf_querybuf(bttv_queue(fh), b);
2695 }
2696
2697 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2698 {
2699 struct bttv_fh *fh = priv;
2700 struct bttv *btv = fh->btv;
2701 int res = bttv_resource(fh);
2702
2703 if (!check_alloc_btres_lock(btv, fh, res))
2704 return -EBUSY;
2705
2706 return videobuf_qbuf(bttv_queue(fh), b);
2707 }
2708
2709 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2710 {
2711 struct bttv_fh *fh = priv;
2712 return videobuf_dqbuf(bttv_queue(fh), b,
2713 file->f_flags & O_NONBLOCK);
2714 }
2715
2716 static int bttv_streamon(struct file *file, void *priv,
2717 enum v4l2_buf_type type)
2718 {
2719 struct bttv_fh *fh = priv;
2720 struct bttv *btv = fh->btv;
2721 int res = bttv_resource(fh);
2722
2723 if (!check_alloc_btres_lock(btv, fh, res))
2724 return -EBUSY;
2725 return videobuf_streamon(bttv_queue(fh));
2726 }
2727
2728
2729 static int bttv_streamoff(struct file *file, void *priv,
2730 enum v4l2_buf_type type)
2731 {
2732 struct bttv_fh *fh = priv;
2733 struct bttv *btv = fh->btv;
2734 int retval;
2735 int res = bttv_resource(fh);
2736
2737
2738 retval = videobuf_streamoff(bttv_queue(fh));
2739 if (retval < 0)
2740 return retval;
2741 free_btres_lock(btv, fh, res);
2742 return 0;
2743 }
2744
2745 static int bttv_g_parm(struct file *file, void *f,
2746 struct v4l2_streamparm *parm)
2747 {
2748 struct bttv_fh *fh = f;
2749 struct bttv *btv = fh->btv;
2750
2751 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2752 return -EINVAL;
2753 parm->parm.capture.readbuffers = gbuffers;
2754 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
2755 &parm->parm.capture.timeperframe);
2756
2757 return 0;
2758 }
2759
2760 static int bttv_g_tuner(struct file *file, void *priv,
2761 struct v4l2_tuner *t)
2762 {
2763 struct bttv_fh *fh = priv;
2764 struct bttv *btv = fh->btv;
2765
2766 if (0 != t->index)
2767 return -EINVAL;
2768
2769 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2770 t->capability = V4L2_TUNER_CAP_NORM;
2771 bttv_call_all(btv, tuner, g_tuner, t);
2772 strcpy(t->name, "Television");
2773 t->type = V4L2_TUNER_ANALOG_TV;
2774 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2775 t->signal = 0xffff;
2776
2777 if (btv->audio_mode_gpio)
2778 btv->audio_mode_gpio(btv, t, 0);
2779
2780 return 0;
2781 }
2782
2783 static int bttv_cropcap(struct file *file, void *priv,
2784 struct v4l2_cropcap *cap)
2785 {
2786 struct bttv_fh *fh = priv;
2787 struct bttv *btv = fh->btv;
2788
2789 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2790 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2791 return -EINVAL;
2792
2793 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2794
2795 return 0;
2796 }
2797
2798 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
2799 {
2800 struct bttv_fh *fh = f;
2801 struct bttv *btv = fh->btv;
2802
2803 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2804 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2805 return -EINVAL;
2806
2807 /* No fh->do_crop = 1; because btv->crop[1] may be
2808 inconsistent with fh->width or fh->height and apps
2809 do not expect a change here. */
2810
2811 crop->c = btv->crop[!!fh->do_crop].rect;
2812
2813 return 0;
2814 }
2815
2816 static int bttv_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
2817 {
2818 struct bttv_fh *fh = f;
2819 struct bttv *btv = fh->btv;
2820 const struct v4l2_rect *b;
2821 int retval;
2822 struct bttv_crop c;
2823 __s32 b_left;
2824 __s32 b_top;
2825 __s32 b_right;
2826 __s32 b_bottom;
2827
2828 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2829 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2830 return -EINVAL;
2831
2832 /* Make sure tvnorm, vbi_end and the current cropping
2833 parameters remain consistent until we're done. Note
2834 read() may change vbi_end in check_alloc_btres_lock(). */
2835 retval = -EBUSY;
2836
2837 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
2838 return retval;
2839 }
2840
2841 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2842
2843 b_left = b->left;
2844 b_right = b_left + b->width;
2845 b_bottom = b->top + b->height;
2846
2847 b_top = max(b->top, btv->vbi_end);
2848 if (b_top + 32 >= b_bottom) {
2849 return retval;
2850 }
2851
2852 /* Min. scaled size 48 x 32. */
2853 c.rect.left = clamp_t(s32, crop->c.left, b_left, b_right - 48);
2854 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
2855
2856 c.rect.width = clamp_t(s32, crop->c.width,
2857 48, b_right - c.rect.left);
2858
2859 c.rect.top = clamp_t(s32, crop->c.top, b_top, b_bottom - 32);
2860 /* Top and height must be a multiple of two. */
2861 c.rect.top = (c.rect.top + 1) & ~1;
2862
2863 c.rect.height = clamp_t(s32, crop->c.height,
2864 32, b_bottom - c.rect.top);
2865 c.rect.height = (c.rect.height + 1) & ~1;
2866
2867 bttv_crop_calc_limits(&c);
2868
2869 btv->crop[1] = c;
2870
2871 fh->do_crop = 1;
2872
2873 if (fh->width < c.min_scaled_width) {
2874 fh->width = c.min_scaled_width;
2875 btv->init.width = c.min_scaled_width;
2876 } else if (fh->width > c.max_scaled_width) {
2877 fh->width = c.max_scaled_width;
2878 btv->init.width = c.max_scaled_width;
2879 }
2880
2881 if (fh->height < c.min_scaled_height) {
2882 fh->height = c.min_scaled_height;
2883 btv->init.height = c.min_scaled_height;
2884 } else if (fh->height > c.max_scaled_height) {
2885 fh->height = c.max_scaled_height;
2886 btv->init.height = c.max_scaled_height;
2887 }
2888
2889 return 0;
2890 }
2891
2892 static ssize_t bttv_read(struct file *file, char __user *data,
2893 size_t count, loff_t *ppos)
2894 {
2895 struct bttv_fh *fh = file->private_data;
2896 int retval = 0;
2897
2898 if (fh->btv->errors)
2899 bttv_reinit_bt848(fh->btv);
2900 dprintk("%d: read count=%d type=%s\n",
2901 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
2902
2903 switch (fh->type) {
2904 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2905 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
2906 /* VIDEO_READ in use by another fh,
2907 or VIDEO_STREAM by any fh. */
2908 return -EBUSY;
2909 }
2910 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2911 file->f_flags & O_NONBLOCK);
2912 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
2913 break;
2914 case V4L2_BUF_TYPE_VBI_CAPTURE:
2915 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2916 return -EBUSY;
2917 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
2918 file->f_flags & O_NONBLOCK);
2919 break;
2920 default:
2921 BUG();
2922 }
2923 return retval;
2924 }
2925
2926 static unsigned int bttv_poll(struct file *file, poll_table *wait)
2927 {
2928 struct bttv_fh *fh = file->private_data;
2929 struct bttv_buffer *buf;
2930 enum v4l2_field field;
2931 unsigned int rc = 0;
2932 unsigned long req_events = poll_requested_events(wait);
2933
2934 if (v4l2_event_pending(&fh->fh))
2935 rc = POLLPRI;
2936 else if (req_events & POLLPRI)
2937 poll_wait(file, &fh->fh.wait, wait);
2938
2939 if (!(req_events & (POLLIN | POLLRDNORM)))
2940 return rc;
2941
2942 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2943 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2944 return rc | POLLERR;
2945 return rc | videobuf_poll_stream(file, &fh->vbi, wait);
2946 }
2947
2948 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
2949 /* streaming capture */
2950 if (list_empty(&fh->cap.stream))
2951 return rc | POLLERR;
2952 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
2953 } else {
2954 /* read() capture */
2955 if (NULL == fh->cap.read_buf) {
2956 /* need to capture a new frame */
2957 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
2958 return rc | POLLERR;
2959 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
2960 if (NULL == fh->cap.read_buf)
2961 return rc | POLLERR;
2962 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
2963 field = videobuf_next_field(&fh->cap);
2964 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
2965 kfree (fh->cap.read_buf);
2966 fh->cap.read_buf = NULL;
2967 return rc | POLLERR;
2968 }
2969 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
2970 fh->cap.read_off = 0;
2971 }
2972 buf = (struct bttv_buffer*)fh->cap.read_buf;
2973 }
2974
2975 poll_wait(file, &buf->vb.done, wait);
2976 if (buf->vb.state == VIDEOBUF_DONE ||
2977 buf->vb.state == VIDEOBUF_ERROR)
2978 rc = rc | POLLIN|POLLRDNORM;
2979 return rc;
2980 }
2981
2982 static int bttv_open(struct file *file)
2983 {
2984 struct video_device *vdev = video_devdata(file);
2985 struct bttv *btv = video_drvdata(file);
2986 struct bttv_fh *fh;
2987 enum v4l2_buf_type type = 0;
2988
2989 dprintk("open dev=%s\n", video_device_node_name(vdev));
2990
2991 if (vdev->vfl_type == VFL_TYPE_GRABBER) {
2992 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2993 } else if (vdev->vfl_type == VFL_TYPE_VBI) {
2994 type = V4L2_BUF_TYPE_VBI_CAPTURE;
2995 } else {
2996 WARN_ON(1);
2997 return -ENODEV;
2998 }
2999
3000 dprintk("%d: open called (type=%s)\n",
3001 btv->c.nr, v4l2_type_names[type]);
3002
3003 /* allocate per filehandle data */
3004 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3005 if (unlikely(!fh))
3006 return -ENOMEM;
3007 btv->users++;
3008 file->private_data = fh;
3009
3010 *fh = btv->init;
3011 v4l2_fh_init(&fh->fh, vdev);
3012
3013 fh->type = type;
3014 fh->ov.setup_ok = 0;
3015
3016 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3017 &btv->c.pci->dev, &btv->s_lock,
3018 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3019 V4L2_FIELD_INTERLACED,
3020 sizeof(struct bttv_buffer),
3021 fh, &btv->lock);
3022 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3023 &btv->c.pci->dev, &btv->s_lock,
3024 V4L2_BUF_TYPE_VBI_CAPTURE,
3025 V4L2_FIELD_SEQ_TB,
3026 sizeof(struct bttv_buffer),
3027 fh, &btv->lock);
3028 set_tvnorm(btv,btv->tvnorm);
3029 set_input(btv, btv->input, btv->tvnorm);
3030 audio_mute(btv, btv->mute);
3031
3032 /* The V4L2 spec requires one global set of cropping parameters
3033 which only change on request. These are stored in btv->crop[1].
3034 However for compatibility with V4L apps and cropping unaware
3035 V4L2 apps we now reset the cropping parameters as seen through
3036 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3037 will use btv->crop[0], the default cropping parameters for the
3038 current video standard, and VIDIOC_S_FMT will not implicitely
3039 change the cropping parameters until VIDIOC_S_CROP has been
3040 called. */
3041 fh->do_crop = !reset_crop; /* module parameter */
3042
3043 /* Likewise there should be one global set of VBI capture
3044 parameters, but for compatibility with V4L apps and earlier
3045 driver versions each fh has its own parameters. */
3046 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3047
3048 bttv_field_count(btv);
3049 v4l2_fh_add(&fh->fh);
3050 return 0;
3051 }
3052
3053 static int bttv_release(struct file *file)
3054 {
3055 struct bttv_fh *fh = file->private_data;
3056 struct bttv *btv = fh->btv;
3057
3058 /* turn off overlay */
3059 if (check_btres(fh, RESOURCE_OVERLAY))
3060 bttv_switch_overlay(btv,fh,NULL);
3061
3062 /* stop video capture */
3063 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3064 videobuf_streamoff(&fh->cap);
3065 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
3066 }
3067 if (fh->cap.read_buf) {
3068 buffer_release(&fh->cap,fh->cap.read_buf);
3069 kfree(fh->cap.read_buf);
3070 }
3071 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3072 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
3073 }
3074
3075 /* stop vbi capture */
3076 if (check_btres(fh, RESOURCE_VBI)) {
3077 videobuf_stop(&fh->vbi);
3078 free_btres_lock(btv,fh,RESOURCE_VBI);
3079 }
3080
3081 /* free stuff */
3082
3083 videobuf_mmap_free(&fh->cap);
3084 videobuf_mmap_free(&fh->vbi);
3085 file->private_data = NULL;
3086
3087 btv->users--;
3088 bttv_field_count(btv);
3089
3090 if (!btv->users)
3091 audio_mute(btv, btv->mute);
3092
3093 v4l2_fh_del(&fh->fh);
3094 v4l2_fh_exit(&fh->fh);
3095 kfree(fh);
3096 return 0;
3097 }
3098
3099 static int
3100 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3101 {
3102 struct bttv_fh *fh = file->private_data;
3103
3104 dprintk("%d: mmap type=%s 0x%lx+%ld\n",
3105 fh->btv->c.nr, v4l2_type_names[fh->type],
3106 vma->vm_start, vma->vm_end - vma->vm_start);
3107 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3108 }
3109
3110 static const struct v4l2_file_operations bttv_fops =
3111 {
3112 .owner = THIS_MODULE,
3113 .open = bttv_open,
3114 .release = bttv_release,
3115 .unlocked_ioctl = video_ioctl2,
3116 .read = bttv_read,
3117 .mmap = bttv_mmap,
3118 .poll = bttv_poll,
3119 };
3120
3121 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3122 .vidioc_querycap = bttv_querycap,
3123 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3124 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3125 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3126 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3127 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3128 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3129 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3130 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3131 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3132 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3133 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3134 .vidioc_cropcap = bttv_cropcap,
3135 .vidioc_reqbufs = bttv_reqbufs,
3136 .vidioc_querybuf = bttv_querybuf,
3137 .vidioc_qbuf = bttv_qbuf,
3138 .vidioc_dqbuf = bttv_dqbuf,
3139 .vidioc_s_std = bttv_s_std,
3140 .vidioc_g_std = bttv_g_std,
3141 .vidioc_enum_input = bttv_enum_input,
3142 .vidioc_g_input = bttv_g_input,
3143 .vidioc_s_input = bttv_s_input,
3144 .vidioc_streamon = bttv_streamon,
3145 .vidioc_streamoff = bttv_streamoff,
3146 .vidioc_g_tuner = bttv_g_tuner,
3147 .vidioc_s_tuner = bttv_s_tuner,
3148 .vidioc_g_crop = bttv_g_crop,
3149 .vidioc_s_crop = bttv_s_crop,
3150 .vidioc_g_fbuf = bttv_g_fbuf,
3151 .vidioc_s_fbuf = bttv_s_fbuf,
3152 .vidioc_overlay = bttv_overlay,
3153 .vidioc_g_parm = bttv_g_parm,
3154 .vidioc_g_frequency = bttv_g_frequency,
3155 .vidioc_s_frequency = bttv_s_frequency,
3156 .vidioc_log_status = bttv_log_status,
3157 .vidioc_querystd = bttv_querystd,
3158 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3159 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3160 #ifdef CONFIG_VIDEO_ADV_DEBUG
3161 .vidioc_g_register = bttv_g_register,
3162 .vidioc_s_register = bttv_s_register,
3163 #endif
3164 };
3165
3166 static struct video_device bttv_video_template = {
3167 .fops = &bttv_fops,
3168 .ioctl_ops = &bttv_ioctl_ops,
3169 .tvnorms = BTTV_NORMS,
3170 };
3171
3172 /* ----------------------------------------------------------------------- */
3173 /* radio interface */
3174
3175 static int radio_open(struct file *file)
3176 {
3177 struct video_device *vdev = video_devdata(file);
3178 struct bttv *btv = video_drvdata(file);
3179 struct bttv_fh *fh;
3180
3181 dprintk("open dev=%s\n", video_device_node_name(vdev));
3182
3183 dprintk("%d: open called (radio)\n", btv->c.nr);
3184
3185 /* allocate per filehandle data */
3186 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3187 if (unlikely(!fh))
3188 return -ENOMEM;
3189 file->private_data = fh;
3190 *fh = btv->init;
3191 v4l2_fh_init(&fh->fh, vdev);
3192
3193 btv->radio_user++;
3194 audio_mute(btv, btv->mute);
3195
3196 v4l2_fh_add(&fh->fh);
3197
3198 return 0;
3199 }
3200
3201 static int radio_release(struct file *file)
3202 {
3203 struct bttv_fh *fh = file->private_data;
3204 struct bttv *btv = fh->btv;
3205 struct saa6588_command cmd;
3206
3207 file->private_data = NULL;
3208 v4l2_fh_del(&fh->fh);
3209 v4l2_fh_exit(&fh->fh);
3210 kfree(fh);
3211
3212 btv->radio_user--;
3213
3214 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
3215
3216 if (btv->radio_user == 0)
3217 btv->has_radio_tuner = 0;
3218 return 0;
3219 }
3220
3221 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3222 {
3223 struct bttv_fh *fh = priv;
3224 struct bttv *btv = fh->btv;
3225
3226 if (0 != t->index)
3227 return -EINVAL;
3228 strcpy(t->name, "Radio");
3229 t->type = V4L2_TUNER_RADIO;
3230 radio_enable(btv);
3231
3232 bttv_call_all(btv, tuner, g_tuner, t);
3233
3234 if (btv->audio_mode_gpio)
3235 btv->audio_mode_gpio(btv, t, 0);
3236
3237 if (btv->has_tea575x)
3238 return snd_tea575x_g_tuner(&btv->tea, t);
3239
3240 return 0;
3241 }
3242
3243 static int radio_s_tuner(struct file *file, void *priv,
3244 const struct v4l2_tuner *t)
3245 {
3246 struct bttv_fh *fh = priv;
3247 struct bttv *btv = fh->btv;
3248
3249 if (0 != t->index)
3250 return -EINVAL;
3251
3252 radio_enable(btv);
3253 bttv_call_all(btv, tuner, s_tuner, t);
3254 return 0;
3255 }
3256
3257 static int radio_s_hw_freq_seek(struct file *file, void *priv,
3258 const struct v4l2_hw_freq_seek *a)
3259 {
3260 struct bttv_fh *fh = priv;
3261 struct bttv *btv = fh->btv;
3262
3263 if (btv->has_tea575x)
3264 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
3265
3266 return -ENOTTY;
3267 }
3268
3269 static int radio_enum_freq_bands(struct file *file, void *priv,
3270 struct v4l2_frequency_band *band)
3271 {
3272 struct bttv_fh *fh = priv;
3273 struct bttv *btv = fh->btv;
3274
3275 if (btv->has_tea575x)
3276 return snd_tea575x_enum_freq_bands(&btv->tea, band);
3277
3278 return -ENOTTY;
3279 }
3280
3281 static ssize_t radio_read(struct file *file, char __user *data,
3282 size_t count, loff_t *ppos)
3283 {
3284 struct bttv_fh *fh = file->private_data;
3285 struct bttv *btv = fh->btv;
3286 struct saa6588_command cmd;
3287
3288 cmd.block_count = count / 3;
3289 cmd.nonblocking = file->f_flags & O_NONBLOCK;
3290 cmd.buffer = data;
3291 cmd.instance = file;
3292 cmd.result = -ENODEV;
3293 radio_enable(btv);
3294
3295 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
3296
3297 return cmd.result;
3298 }
3299
3300 static unsigned int radio_poll(struct file *file, poll_table *wait)
3301 {
3302 struct bttv_fh *fh = file->private_data;
3303 struct bttv *btv = fh->btv;
3304 unsigned long req_events = poll_requested_events(wait);
3305 struct saa6588_command cmd;
3306 unsigned int res = 0;
3307
3308 if (v4l2_event_pending(&fh->fh))
3309 res = POLLPRI;
3310 else if (req_events & POLLPRI)
3311 poll_wait(file, &fh->fh.wait, wait);
3312 radio_enable(btv);
3313 cmd.instance = file;
3314 cmd.event_list = wait;
3315 cmd.result = res;
3316 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
3317
3318 return cmd.result;
3319 }
3320
3321 static const struct v4l2_file_operations radio_fops =
3322 {
3323 .owner = THIS_MODULE,
3324 .open = radio_open,
3325 .read = radio_read,
3326 .release = radio_release,
3327 .unlocked_ioctl = video_ioctl2,
3328 .poll = radio_poll,
3329 };
3330
3331 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3332 .vidioc_querycap = bttv_querycap,
3333 .vidioc_log_status = bttv_log_status,
3334 .vidioc_g_tuner = radio_g_tuner,
3335 .vidioc_s_tuner = radio_s_tuner,
3336 .vidioc_g_frequency = bttv_g_frequency,
3337 .vidioc_s_frequency = bttv_s_frequency,
3338 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
3339 .vidioc_enum_freq_bands = radio_enum_freq_bands,
3340 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3341 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3342 };
3343
3344 static struct video_device radio_template = {
3345 .fops = &radio_fops,
3346 .ioctl_ops = &radio_ioctl_ops,
3347 };
3348
3349 /* ----------------------------------------------------------------------- */
3350 /* some debug code */
3351
3352 static int bttv_risc_decode(u32 risc)
3353 {
3354 static char *instr[16] = {
3355 [ BT848_RISC_WRITE >> 28 ] = "write",
3356 [ BT848_RISC_SKIP >> 28 ] = "skip",
3357 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3358 [ BT848_RISC_JUMP >> 28 ] = "jump",
3359 [ BT848_RISC_SYNC >> 28 ] = "sync",
3360 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3361 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3362 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3363 };
3364 static int incr[16] = {
3365 [ BT848_RISC_WRITE >> 28 ] = 2,
3366 [ BT848_RISC_JUMP >> 28 ] = 2,
3367 [ BT848_RISC_SYNC >> 28 ] = 2,
3368 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3369 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3370 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3371 };
3372 static char *bits[] = {
3373 "be0", "be1", "be2", "be3/resync",
3374 "set0", "set1", "set2", "set3",
3375 "clr0", "clr1", "clr2", "clr3",
3376 "irq", "res", "eol", "sol",
3377 };
3378 int i;
3379
3380 pr_cont("0x%08x [ %s", risc,
3381 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3382 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3383 if (risc & (1 << (i + 12)))
3384 pr_cont(" %s", bits[i]);
3385 pr_cont(" count=%d ]\n", risc & 0xfff);
3386 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3387 }
3388
3389 static void bttv_risc_disasm(struct bttv *btv,
3390 struct btcx_riscmem *risc)
3391 {
3392 unsigned int i,j,n;
3393
3394 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
3395 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
3396 for (i = 0; i < (risc->size >> 2); i += n) {
3397 pr_info("%s: 0x%lx: ",
3398 btv->c.v4l2_dev.name,
3399 (unsigned long)(risc->dma + (i<<2)));
3400 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3401 for (j = 1; j < n; j++)
3402 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3403 btv->c.v4l2_dev.name,
3404 (unsigned long)(risc->dma + ((i+j)<<2)),
3405 risc->cpu[i+j], j);
3406 if (0 == risc->cpu[i])
3407 break;
3408 }
3409 }
3410
3411 static void bttv_print_riscaddr(struct bttv *btv)
3412 {
3413 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
3414 pr_info(" vbi : o=%08llx e=%08llx\n",
3415 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3416 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3417 pr_info(" cap : o=%08llx e=%08llx\n",
3418 btv->curr.top
3419 ? (unsigned long long)btv->curr.top->top.dma : 0,
3420 btv->curr.bottom
3421 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3422 pr_info(" scr : o=%08llx e=%08llx\n",
3423 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3424 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3425 bttv_risc_disasm(btv, &btv->main);
3426 }
3427
3428 /* ----------------------------------------------------------------------- */
3429 /* irq handler */
3430
3431 static char *irq_name[] = {
3432 "FMTCHG", // format change detected (525 vs. 625)
3433 "VSYNC", // vertical sync (new field)
3434 "HSYNC", // horizontal sync
3435 "OFLOW", // chroma/luma AGC overflow
3436 "HLOCK", // horizontal lock changed
3437 "VPRES", // video presence changed
3438 "6", "7",
3439 "I2CDONE", // hw irc operation finished
3440 "GPINT", // gpio port triggered irq
3441 "10",
3442 "RISCI", // risc instruction triggered irq
3443 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3444 "FTRGT", // pixel data fifo overrun
3445 "FDSR", // fifo data stream resyncronisation
3446 "PPERR", // parity error (data transfer)
3447 "RIPERR", // parity error (read risc instructions)
3448 "PABORT", // pci abort
3449 "OCERR", // risc instruction error
3450 "SCERR", // syncronisation error
3451 };
3452
3453 static void bttv_print_irqbits(u32 print, u32 mark)
3454 {
3455 unsigned int i;
3456
3457 pr_cont("bits:");
3458 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3459 if (print & (1 << i))
3460 pr_cont(" %s", irq_name[i]);
3461 if (mark & (1 << i))
3462 pr_cont("*");
3463 }
3464 }
3465
3466 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3467 {
3468 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3469 btv->c.nr,
3470 (unsigned long)btv->main.dma,
3471 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3472 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3473 (unsigned long)rc);
3474
3475 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3476 pr_notice("%d: Oh, there (temporarily?) is no input signal. "
3477 "Ok, then this is harmless, don't worry ;)\n",
3478 btv->c.nr);
3479 return;
3480 }
3481 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
3482 btv->c.nr);
3483 pr_notice("%d: Lets try to catch the culpit red-handed ...\n",
3484 btv->c.nr);
3485 dump_stack();
3486 }
3487
3488 static int
3489 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3490 {
3491 struct bttv_buffer *item;
3492
3493 memset(set,0,sizeof(*set));
3494
3495 /* capture request ? */
3496 if (!list_empty(&btv->capture)) {
3497 set->frame_irq = 1;
3498 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3499 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3500 set->top = item;
3501 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3502 set->bottom = item;
3503
3504 /* capture request for other field ? */
3505 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3506 (item->vb.queue.next != &btv->capture)) {
3507 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3508 /* Mike Isely <isely@pobox.com> - Only check
3509 * and set up the bottom field in the logic
3510 * below. Don't ever do the top field. This
3511 * of course means that if we set up the
3512 * bottom field in the above code that we'll
3513 * actually skip a field. But that's OK.
3514 * Having processed only a single buffer this
3515 * time, then the next time around the first
3516 * available buffer should be for a top field.
3517 * That will then cause us here to set up a
3518 * top then a bottom field in the normal way.
3519 * The alternative to this understanding is
3520 * that we set up the second available buffer
3521 * as a top field, but that's out of order
3522 * since this driver always processes the top
3523 * field first - the effect will be the two
3524 * buffers being returned in the wrong order,
3525 * with the second buffer also being delayed
3526 * by one field time (owing to the fifo nature
3527 * of videobuf). Worse still, we'll be stuck
3528 * doing fields out of order now every time
3529 * until something else causes a field to be
3530 * dropped. By effectively forcing a field to
3531 * drop this way then we always get back into
3532 * sync within a single frame time. (Out of
3533 * order fields can screw up deinterlacing
3534 * algorithms.) */
3535 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3536 if (NULL == set->bottom &&
3537 V4L2_FIELD_BOTTOM == item->vb.field) {
3538 set->bottom = item;
3539 }
3540 if (NULL != set->top && NULL != set->bottom)
3541 set->top_irq = 2;
3542 }
3543 }
3544 }
3545
3546 /* screen overlay ? */
3547 if (NULL != btv->screen) {
3548 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3549 if (NULL == set->top && NULL == set->bottom) {
3550 set->top = btv->screen;
3551 set->bottom = btv->screen;
3552 }
3553 } else {
3554 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3555 NULL == set->top) {
3556 set->top = btv->screen;
3557 }
3558 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3559 NULL == set->bottom) {
3560 set->bottom = btv->screen;
3561 }
3562 }
3563 }
3564
3565 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3566 btv->c.nr, set->top, set->bottom,
3567 btv->screen, set->frame_irq, set->top_irq);
3568 return 0;
3569 }
3570
3571 static void
3572 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3573 struct bttv_buffer_set *curr, unsigned int state)
3574 {
3575 struct timeval ts;
3576
3577 v4l2_get_timestamp(&ts);
3578
3579 if (wakeup->top == wakeup->bottom) {
3580 if (NULL != wakeup->top && curr->top != wakeup->top) {
3581 if (irq_debug > 1)
3582 pr_debug("%d: wakeup: both=%p\n",
3583 btv->c.nr, wakeup->top);
3584 wakeup->top->vb.ts = ts;
3585 wakeup->top->vb.field_count = btv->field_count;
3586 wakeup->top->vb.state = state;
3587 wake_up(&wakeup->top->vb.done);
3588 }
3589 } else {
3590 if (NULL != wakeup->top && curr->top != wakeup->top) {
3591 if (irq_debug > 1)
3592 pr_debug("%d: wakeup: top=%p\n",
3593 btv->c.nr, wakeup->top);
3594 wakeup->top->vb.ts = ts;
3595 wakeup->top->vb.field_count = btv->field_count;
3596 wakeup->top->vb.state = state;
3597 wake_up(&wakeup->top->vb.done);
3598 }
3599 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3600 if (irq_debug > 1)
3601 pr_debug("%d: wakeup: bottom=%p\n",
3602 btv->c.nr, wakeup->bottom);
3603 wakeup->bottom->vb.ts = ts;
3604 wakeup->bottom->vb.field_count = btv->field_count;
3605 wakeup->bottom->vb.state = state;
3606 wake_up(&wakeup->bottom->vb.done);
3607 }
3608 }
3609 }
3610
3611 static void
3612 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3613 unsigned int state)
3614 {
3615 if (NULL == wakeup)
3616 return;
3617
3618 v4l2_get_timestamp(&wakeup->vb.ts);
3619 wakeup->vb.field_count = btv->field_count;
3620 wakeup->vb.state = state;
3621 wake_up(&wakeup->vb.done);
3622 }
3623
3624 static void bttv_irq_timeout(unsigned long data)
3625 {
3626 struct bttv *btv = (struct bttv *)data;
3627 struct bttv_buffer_set old,new;
3628 struct bttv_buffer *ovbi;
3629 struct bttv_buffer *item;
3630 unsigned long flags;
3631
3632 if (bttv_verbose) {
3633 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3634 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3635 btread(BT848_RISC_COUNT));
3636 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3637 pr_cont("\n");
3638 }
3639
3640 spin_lock_irqsave(&btv->s_lock,flags);
3641
3642 /* deactivate stuff */
3643 memset(&new,0,sizeof(new));
3644 old = btv->curr;
3645 ovbi = btv->cvbi;
3646 btv->curr = new;
3647 btv->cvbi = NULL;
3648 btv->loop_irq = 0;
3649 bttv_buffer_activate_video(btv, &new);
3650 bttv_buffer_activate_vbi(btv, NULL);
3651 bttv_set_dma(btv, 0);
3652
3653 /* wake up */
3654 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3655 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3656
3657 /* cancel all outstanding capture / vbi requests */
3658 while (!list_empty(&btv->capture)) {
3659 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3660 list_del(&item->vb.queue);
3661 item->vb.state = VIDEOBUF_ERROR;
3662 wake_up(&item->vb.done);
3663 }
3664 while (!list_empty(&btv->vcapture)) {
3665 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3666 list_del(&item->vb.queue);
3667 item->vb.state = VIDEOBUF_ERROR;
3668 wake_up(&item->vb.done);
3669 }
3670
3671 btv->errors++;
3672 spin_unlock_irqrestore(&btv->s_lock,flags);
3673 }
3674
3675 static void
3676 bttv_irq_wakeup_top(struct bttv *btv)
3677 {
3678 struct bttv_buffer *wakeup = btv->curr.top;
3679
3680 if (NULL == wakeup)
3681 return;
3682
3683 spin_lock(&btv->s_lock);
3684 btv->curr.top_irq = 0;
3685 btv->curr.top = NULL;
3686 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3687
3688 v4l2_get_timestamp(&wakeup->vb.ts);
3689 wakeup->vb.field_count = btv->field_count;
3690 wakeup->vb.state = VIDEOBUF_DONE;
3691 wake_up(&wakeup->vb.done);
3692 spin_unlock(&btv->s_lock);
3693 }
3694
3695 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3696 {
3697 if (rc < risc->dma)
3698 return 0;
3699 if (rc > risc->dma + risc->size)
3700 return 0;
3701 return 1;
3702 }
3703
3704 static void
3705 bttv_irq_switch_video(struct bttv *btv)
3706 {
3707 struct bttv_buffer_set new;
3708 struct bttv_buffer_set old;
3709 dma_addr_t rc;
3710
3711 spin_lock(&btv->s_lock);
3712
3713 /* new buffer set */
3714 bttv_irq_next_video(btv, &new);
3715 rc = btread(BT848_RISC_COUNT);
3716 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
3717 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3718 btv->framedrop++;
3719 if (debug_latency)
3720 bttv_irq_debug_low_latency(btv, rc);
3721 spin_unlock(&btv->s_lock);
3722 return;
3723 }
3724
3725 /* switch over */
3726 old = btv->curr;
3727 btv->curr = new;
3728 btv->loop_irq &= ~1;
3729 bttv_buffer_activate_video(btv, &new);
3730 bttv_set_dma(btv, 0);
3731
3732 /* switch input */
3733 if (UNSET != btv->new_input) {
3734 video_mux(btv,btv->new_input);
3735 btv->new_input = UNSET;
3736 }
3737
3738 /* wake up finished buffers */
3739 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3740 spin_unlock(&btv->s_lock);
3741 }
3742
3743 static void
3744 bttv_irq_switch_vbi(struct bttv *btv)
3745 {
3746 struct bttv_buffer *new = NULL;
3747 struct bttv_buffer *old;
3748 u32 rc;
3749
3750 spin_lock(&btv->s_lock);
3751
3752 if (!list_empty(&btv->vcapture))
3753 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3754 old = btv->cvbi;
3755
3756 rc = btread(BT848_RISC_COUNT);
3757 if (NULL != old && (is_active(&old->top, rc) ||
3758 is_active(&old->bottom, rc))) {
3759 btv->framedrop++;
3760 if (debug_latency)
3761 bttv_irq_debug_low_latency(btv, rc);
3762 spin_unlock(&btv->s_lock);
3763 return;
3764 }
3765
3766 /* switch */
3767 btv->cvbi = new;
3768 btv->loop_irq &= ~4;
3769 bttv_buffer_activate_vbi(btv, new);
3770 bttv_set_dma(btv, 0);
3771
3772 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
3773 spin_unlock(&btv->s_lock);
3774 }
3775
3776 static irqreturn_t bttv_irq(int irq, void *dev_id)
3777 {
3778 u32 stat,astat;
3779 u32 dstat;
3780 int count;
3781 struct bttv *btv;
3782 int handled = 0;
3783
3784 btv=(struct bttv *)dev_id;
3785
3786 count=0;
3787 while (1) {
3788 /* get/clear interrupt status bits */
3789 stat=btread(BT848_INT_STAT);
3790 astat=stat&btread(BT848_INT_MASK);
3791 if (!astat)
3792 break;
3793 handled = 1;
3794 btwrite(stat,BT848_INT_STAT);
3795
3796 /* get device status bits */
3797 dstat=btread(BT848_DSTATUS);
3798
3799 if (irq_debug) {
3800 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
3801 btv->c.nr, count, btv->field_count,
3802 stat>>28, btread(BT848_RISC_COUNT));
3803 bttv_print_irqbits(stat,astat);
3804 if (stat & BT848_INT_HLOCK)
3805 pr_cont(" HLOC => %s",
3806 dstat & BT848_DSTATUS_HLOC
3807 ? "yes" : "no");
3808 if (stat & BT848_INT_VPRES)
3809 pr_cont(" PRES => %s",
3810 dstat & BT848_DSTATUS_PRES
3811 ? "yes" : "no");
3812 if (stat & BT848_INT_FMTCHG)
3813 pr_cont(" NUML => %s",
3814 dstat & BT848_DSTATUS_NUML
3815 ? "625" : "525");
3816 pr_cont("\n");
3817 }
3818
3819 if (astat&BT848_INT_VSYNC)
3820 btv->field_count++;
3821
3822 if ((astat & BT848_INT_GPINT) && btv->remote) {
3823 bttv_input_irq(btv);
3824 }
3825
3826 if (astat & BT848_INT_I2CDONE) {
3827 btv->i2c_done = stat;
3828 wake_up(&btv->i2c_queue);
3829 }
3830
3831 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
3832 bttv_irq_switch_vbi(btv);
3833
3834 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
3835 bttv_irq_wakeup_top(btv);
3836
3837 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
3838 bttv_irq_switch_video(btv);
3839
3840 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
3841 /* trigger automute */
3842 audio_mux_gpio(btv, btv->audio_input, btv->mute);
3843
3844 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3845 pr_info("%d: %s%s @ %08x,",
3846 btv->c.nr,
3847 (astat & BT848_INT_SCERR) ? "SCERR" : "",
3848 (astat & BT848_INT_OCERR) ? "OCERR" : "",
3849 btread(BT848_RISC_COUNT));
3850 bttv_print_irqbits(stat,astat);
3851 pr_cont("\n");
3852 if (bttv_debug)
3853 bttv_print_riscaddr(btv);
3854 }
3855 if (fdsr && astat & BT848_INT_FDSR) {
3856 pr_info("%d: FDSR @ %08x\n",
3857 btv->c.nr, btread(BT848_RISC_COUNT));
3858 if (bttv_debug)
3859 bttv_print_riscaddr(btv);
3860 }
3861
3862 count++;
3863 if (count > 4) {
3864
3865 if (count > 8 || !(astat & BT848_INT_GPINT)) {
3866 btwrite(0, BT848_INT_MASK);
3867
3868 pr_err("%d: IRQ lockup, cleared int mask [",
3869 btv->c.nr);
3870 } else {
3871 pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
3872 btv->c.nr);
3873
3874 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3875 BT848_INT_MASK);
3876 }
3877
3878 bttv_print_irqbits(stat,astat);
3879
3880 pr_cont("]\n");
3881 }
3882 }
3883 btv->irq_total++;
3884 if (handled)
3885 btv->irq_me++;
3886 return IRQ_RETVAL(handled);
3887 }
3888
3889
3890 /* ----------------------------------------------------------------------- */
3891 /* initialization */
3892
3893 static void vdev_init(struct bttv *btv,
3894 struct video_device *vfd,
3895 const struct video_device *template,
3896 const char *type_name)
3897 {
3898 *vfd = *template;
3899 vfd->v4l2_dev = &btv->c.v4l2_dev;
3900 vfd->release = video_device_release_empty;
3901 video_set_drvdata(vfd, btv);
3902 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3903 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3904 type_name, bttv_tvcards[btv->c.type].name);
3905 if (btv->tuner_type == TUNER_ABSENT) {
3906 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
3907 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
3908 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
3909 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
3910 }
3911 }
3912
3913 static void bttv_unregister_video(struct bttv *btv)
3914 {
3915 video_unregister_device(&btv->video_dev);
3916 video_unregister_device(&btv->vbi_dev);
3917 video_unregister_device(&btv->radio_dev);
3918 }
3919
3920 /* register video4linux devices */
3921 static int bttv_register_video(struct bttv *btv)
3922 {
3923 if (no_overlay > 0)
3924 pr_notice("Overlay support disabled\n");
3925
3926 /* video */
3927 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
3928
3929 if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
3930 video_nr[btv->c.nr]) < 0)
3931 goto err;
3932 pr_info("%d: registered device %s\n",
3933 btv->c.nr, video_device_node_name(&btv->video_dev));
3934 if (device_create_file(&btv->video_dev.dev,
3935 &dev_attr_card)<0) {
3936 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
3937 goto err;
3938 }
3939
3940 /* vbi */
3941 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
3942
3943 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
3944 vbi_nr[btv->c.nr]) < 0)
3945 goto err;
3946 pr_info("%d: registered device %s\n",
3947 btv->c.nr, video_device_node_name(&btv->vbi_dev));
3948
3949 if (!btv->has_radio)
3950 return 0;
3951 /* radio */
3952 vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
3953 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
3954 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
3955 radio_nr[btv->c.nr]) < 0)
3956 goto err;
3957 pr_info("%d: registered device %s\n",
3958 btv->c.nr, video_device_node_name(&btv->radio_dev));
3959
3960 /* all done */
3961 return 0;
3962
3963 err:
3964 bttv_unregister_video(btv);
3965 return -1;
3966 }
3967
3968
3969 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
3970 /* response on cards with no firmware is not enabled by OF */
3971 static void pci_set_command(struct pci_dev *dev)
3972 {
3973 #if defined(__powerpc__)
3974 unsigned int cmd;
3975
3976 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
3977 cmd = (cmd | PCI_COMMAND_MEMORY );
3978 pci_write_config_dword(dev, PCI_COMMAND, cmd);
3979 #endif
3980 }
3981
3982 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
3983 {
3984 struct v4l2_frequency init_freq = {
3985 .tuner = 0,
3986 .type = V4L2_TUNER_ANALOG_TV,
3987 .frequency = 980,
3988 };
3989 int result;
3990 unsigned char lat;
3991 struct bttv *btv;
3992 struct v4l2_ctrl_handler *hdl;
3993
3994 if (bttv_num == BTTV_MAX)
3995 return -ENOMEM;
3996 pr_info("Bt8xx card found (%d)\n", bttv_num);
3997 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
3998 if (btv == NULL) {
3999 pr_err("out of memory\n");
4000 return -ENOMEM;
4001 }
4002 btv->c.nr = bttv_num;
4003 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
4004 "bttv%d", btv->c.nr);
4005
4006 /* initialize structs / fill in defaults */
4007 mutex_init(&btv->lock);
4008 spin_lock_init(&btv->s_lock);
4009 spin_lock_init(&btv->gpio_lock);
4010 init_waitqueue_head(&btv->i2c_queue);
4011 INIT_LIST_HEAD(&btv->c.subs);
4012 INIT_LIST_HEAD(&btv->capture);
4013 INIT_LIST_HEAD(&btv->vcapture);
4014
4015 init_timer(&btv->timeout);
4016 btv->timeout.function = bttv_irq_timeout;
4017 btv->timeout.data = (unsigned long)btv;
4018
4019 btv->i2c_rc = -1;
4020 btv->tuner_type = UNSET;
4021 btv->new_input = UNSET;
4022 btv->has_radio=radio[btv->c.nr];
4023
4024 /* pci stuff (init, get irq/mmio, ... */
4025 btv->c.pci = dev;
4026 btv->id = dev->device;
4027 if (pci_enable_device(dev)) {
4028 pr_warn("%d: Can't enable device\n", btv->c.nr);
4029 return -EIO;
4030 }
4031 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
4032 pr_warn("%d: No suitable DMA available\n", btv->c.nr);
4033 return -EIO;
4034 }
4035 if (!request_mem_region(pci_resource_start(dev,0),
4036 pci_resource_len(dev,0),
4037 btv->c.v4l2_dev.name)) {
4038 pr_warn("%d: can't request iomem (0x%llx)\n",
4039 btv->c.nr,
4040 (unsigned long long)pci_resource_start(dev, 0));
4041 return -EBUSY;
4042 }
4043 pci_set_master(dev);
4044 pci_set_command(dev);
4045
4046 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
4047 if (result < 0) {
4048 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
4049 goto fail0;
4050 }
4051 hdl = &btv->ctrl_handler;
4052 v4l2_ctrl_handler_init(hdl, 20);
4053 btv->c.v4l2_dev.ctrl_handler = hdl;
4054 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
4055
4056 btv->revision = dev->revision;
4057 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4058 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
4059 bttv_num, btv->id, btv->revision, pci_name(dev),
4060 btv->c.pci->irq, lat,
4061 (unsigned long long)pci_resource_start(dev, 0));
4062 schedule();
4063
4064 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4065 if (NULL == btv->bt848_mmio) {
4066 pr_err("%d: ioremap() failed\n", btv->c.nr);
4067 result = -EIO;
4068 goto fail1;
4069 }
4070
4071 /* identify card */
4072 bttv_idcard(btv);
4073
4074 /* disable irqs, register irq handler */
4075 btwrite(0, BT848_INT_MASK);
4076 result = request_irq(btv->c.pci->irq, bttv_irq,
4077 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
4078 if (result < 0) {
4079 pr_err("%d: can't get IRQ %d\n",
4080 bttv_num, btv->c.pci->irq);
4081 goto fail1;
4082 }
4083
4084 if (0 != bttv_handle_chipset(btv)) {
4085 result = -EIO;
4086 goto fail2;
4087 }
4088
4089 /* init options from insmod args */
4090 btv->opt_combfilter = combfilter;
4091 bttv_ctrl_combfilter.def = combfilter;
4092 bttv_ctrl_lumafilter.def = lumafilter;
4093 btv->opt_automute = automute;
4094 bttv_ctrl_automute.def = automute;
4095 bttv_ctrl_agc_crush.def = agc_crush;
4096 btv->opt_vcr_hack = vcr_hack;
4097 bttv_ctrl_vcr_hack.def = vcr_hack;
4098 bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
4099 bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
4100 btv->opt_uv_ratio = uv_ratio;
4101 bttv_ctrl_uv_ratio.def = uv_ratio;
4102 bttv_ctrl_full_luma.def = full_luma_range;
4103 bttv_ctrl_coring.def = coring;
4104
4105 /* fill struct bttv with some useful defaults */
4106 btv->init.btv = btv;
4107 btv->init.ov.w.width = 320;
4108 btv->init.ov.w.height = 240;
4109 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4110 btv->init.width = 320;
4111 btv->init.height = 240;
4112 btv->init.ov.w.width = 320;
4113 btv->init.ov.w.height = 240;
4114 btv->init.ov.field = V4L2_FIELD_INTERLACED;
4115 btv->input = 0;
4116
4117 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4118 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
4119 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4120 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
4121 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4122 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
4123 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4124 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
4125 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4126 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
4127 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4128 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
4129 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4130 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
4131 if (btv->volume_gpio)
4132 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4133 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
4134 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
4135 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
4136 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
4137 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
4138 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
4139 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
4140 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
4141 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
4142 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
4143 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
4144
4145 /* initialize hardware */
4146 if (bttv_gpio)
4147 bttv_gpio_tracking(btv,"pre-init");
4148
4149 bttv_risc_init_main(btv);
4150 init_bt848(btv);
4151
4152 /* gpio */
4153 btwrite(0x00, BT848_GPIO_REG_INP);
4154 btwrite(0x00, BT848_GPIO_OUT_EN);
4155 if (bttv_verbose)
4156 bttv_gpio_tracking(btv,"init");
4157
4158 /* needs to be done before i2c is registered */
4159 bttv_init_card1(btv);
4160
4161 /* register i2c + gpio */
4162 init_bttv_i2c(btv);
4163
4164 /* some card-specific stuff (needs working i2c) */
4165 bttv_init_card2(btv);
4166 bttv_init_tuner(btv);
4167 if (btv->tuner_type != TUNER_ABSENT) {
4168 bttv_set_frequency(btv, &init_freq);
4169 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
4170 }
4171 btv->std = V4L2_STD_PAL;
4172 init_irqreg(btv);
4173 if (!bttv_tvcards[btv->c.type].no_video)
4174 v4l2_ctrl_handler_setup(hdl);
4175 if (hdl->error) {
4176 result = hdl->error;
4177 goto fail2;
4178 }
4179 /* mute device */
4180 audio_mute(btv, 1);
4181
4182 /* register video4linux + input */
4183 if (!bttv_tvcards[btv->c.type].no_video) {
4184 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
4185 v4l2_ctrl_radio_filter);
4186 if (btv->radio_ctrl_handler.error) {
4187 result = btv->radio_ctrl_handler.error;
4188 goto fail2;
4189 }
4190 set_input(btv, 0, btv->tvnorm);
4191 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4192 btv->crop[1] = btv->crop[0]; /* current = default */
4193 disclaim_vbi_lines(btv);
4194 disclaim_video_lines(btv);
4195 bttv_register_video(btv);
4196 }
4197
4198 /* add subdevices and autoload dvb-bt8xx if needed */
4199 if (bttv_tvcards[btv->c.type].has_dvb) {
4200 bttv_sub_add_device(&btv->c, "dvb");
4201 request_modules(btv);
4202 }
4203
4204 if (!disable_ir) {
4205 init_bttv_i2c_ir(btv);
4206 bttv_input_init(btv);
4207 }
4208
4209 /* everything is fine */
4210 bttv_num++;
4211 return 0;
4212
4213 fail2:
4214 free_irq(btv->c.pci->irq,btv);
4215
4216 fail1:
4217 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4218 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4219 v4l2_device_unregister(&btv->c.v4l2_dev);
4220
4221 fail0:
4222 if (btv->bt848_mmio)
4223 iounmap(btv->bt848_mmio);
4224 release_mem_region(pci_resource_start(btv->c.pci,0),
4225 pci_resource_len(btv->c.pci,0));
4226 pci_disable_device(btv->c.pci);
4227 return result;
4228 }
4229
4230 static void bttv_remove(struct pci_dev *pci_dev)
4231 {
4232 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4233 struct bttv *btv = to_bttv(v4l2_dev);
4234
4235 if (bttv_verbose)
4236 pr_info("%d: unloading\n", btv->c.nr);
4237
4238 if (bttv_tvcards[btv->c.type].has_dvb)
4239 flush_request_modules(btv);
4240
4241 /* shutdown everything (DMA+IRQs) */
4242 btand(~15, BT848_GPIO_DMA_CTL);
4243 btwrite(0, BT848_INT_MASK);
4244 btwrite(~0x0, BT848_INT_STAT);
4245 btwrite(0x0, BT848_GPIO_OUT_EN);
4246 if (bttv_gpio)
4247 bttv_gpio_tracking(btv,"cleanup");
4248
4249 /* tell gpio modules we are leaving ... */
4250 btv->shutdown=1;
4251 bttv_input_fini(btv);
4252 bttv_sub_del_devices(&btv->c);
4253
4254 /* unregister i2c_bus + input */
4255 fini_bttv_i2c(btv);
4256
4257 /* unregister video4linux */
4258 bttv_unregister_video(btv);
4259
4260 /* free allocated memory */
4261 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4262 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4263 btcx_riscmem_free(btv->c.pci,&btv->main);
4264
4265 /* free resources */
4266 free_irq(btv->c.pci->irq,btv);
4267 iounmap(btv->bt848_mmio);
4268 release_mem_region(pci_resource_start(btv->c.pci,0),
4269 pci_resource_len(btv->c.pci,0));
4270 pci_disable_device(btv->c.pci);
4271
4272 v4l2_device_unregister(&btv->c.v4l2_dev);
4273 bttvs[btv->c.nr] = NULL;
4274 kfree(btv);
4275
4276 return;
4277 }
4278
4279 #ifdef CONFIG_PM
4280 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4281 {
4282 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4283 struct bttv *btv = to_bttv(v4l2_dev);
4284 struct bttv_buffer_set idle;
4285 unsigned long flags;
4286
4287 dprintk("%d: suspend %d\n", btv->c.nr, state.event);
4288
4289 /* stop dma + irqs */
4290 spin_lock_irqsave(&btv->s_lock,flags);
4291 memset(&idle, 0, sizeof(idle));
4292 btv->state.video = btv->curr;
4293 btv->state.vbi = btv->cvbi;
4294 btv->state.loop_irq = btv->loop_irq;
4295 btv->curr = idle;
4296 btv->loop_irq = 0;
4297 bttv_buffer_activate_video(btv, &idle);
4298 bttv_buffer_activate_vbi(btv, NULL);
4299 bttv_set_dma(btv, 0);
4300 btwrite(0, BT848_INT_MASK);
4301 spin_unlock_irqrestore(&btv->s_lock,flags);
4302
4303 /* save bt878 state */
4304 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4305 btv->state.gpio_data = gpio_read();
4306
4307 /* save pci state */
4308 pci_save_state(pci_dev);
4309 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4310 pci_disable_device(pci_dev);
4311 btv->state.disabled = 1;
4312 }
4313 return 0;
4314 }
4315
4316 static int bttv_resume(struct pci_dev *pci_dev)
4317 {
4318 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4319 struct bttv *btv = to_bttv(v4l2_dev);
4320 unsigned long flags;
4321 int err;
4322
4323 dprintk("%d: resume\n", btv->c.nr);
4324
4325 /* restore pci state */
4326 if (btv->state.disabled) {
4327 err=pci_enable_device(pci_dev);
4328 if (err) {
4329 pr_warn("%d: Can't enable device\n", btv->c.nr);
4330 return err;
4331 }
4332 btv->state.disabled = 0;
4333 }
4334 err=pci_set_power_state(pci_dev, PCI_D0);
4335 if (err) {
4336 pci_disable_device(pci_dev);
4337 pr_warn("%d: Can't enable device\n", btv->c.nr);
4338 btv->state.disabled = 1;
4339 return err;
4340 }
4341
4342 pci_restore_state(pci_dev);
4343
4344 /* restore bt878 state */
4345 bttv_reinit_bt848(btv);
4346 gpio_inout(0xffffff, btv->state.gpio_enable);
4347 gpio_write(btv->state.gpio_data);
4348
4349 /* restart dma */
4350 spin_lock_irqsave(&btv->s_lock,flags);
4351 btv->curr = btv->state.video;
4352 btv->cvbi = btv->state.vbi;
4353 btv->loop_irq = btv->state.loop_irq;
4354 bttv_buffer_activate_video(btv, &btv->curr);
4355 bttv_buffer_activate_vbi(btv, btv->cvbi);
4356 bttv_set_dma(btv, 0);
4357 spin_unlock_irqrestore(&btv->s_lock,flags);
4358 return 0;
4359 }
4360 #endif
4361
4362 static struct pci_device_id bttv_pci_tbl[] = {
4363 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
4364 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
4365 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
4366 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
4367 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
4368 {0,}
4369 };
4370
4371 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4372
4373 static struct pci_driver bttv_pci_driver = {
4374 .name = "bttv",
4375 .id_table = bttv_pci_tbl,
4376 .probe = bttv_probe,
4377 .remove = bttv_remove,
4378 #ifdef CONFIG_PM
4379 .suspend = bttv_suspend,
4380 .resume = bttv_resume,
4381 #endif
4382 };
4383
4384 static int __init bttv_init_module(void)
4385 {
4386 int ret;
4387
4388 bttv_num = 0;
4389
4390 pr_info("driver version %s loaded\n", BTTV_VERSION);
4391 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4392 gbuffers = 2;
4393 if (gbufsize > BTTV_MAX_FBUF)
4394 gbufsize = BTTV_MAX_FBUF;
4395 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4396 if (bttv_verbose)
4397 pr_info("using %d buffers with %dk (%d pages) each for capture\n",
4398 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4399
4400 bttv_check_chipset();
4401
4402 ret = bus_register(&bttv_sub_bus_type);
4403 if (ret < 0) {
4404 pr_warn("bus_register error: %d\n", ret);
4405 return ret;
4406 }
4407 ret = pci_register_driver(&bttv_pci_driver);
4408 if (ret < 0)
4409 bus_unregister(&bttv_sub_bus_type);
4410
4411 return ret;
4412 }
4413
4414 static void __exit bttv_cleanup_module(void)
4415 {
4416 pci_unregister_driver(&bttv_pci_driver);
4417 bus_unregister(&bttv_sub_bus_type);
4418 }
4419
4420 module_init(bttv_init_module);
4421 module_exit(bttv_cleanup_module);
Linux kernel - Deliverables
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