?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ASoC: es8316: Add jack-detect support
[linux/fpc-iii.git] / drivers / media / pci / bt8xx / bttv-driver.c
blobd4906c04dc6eeddc56e270842d48a166057abad3
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@kernel.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 is 1 (yes) for compatibility with older applications");
152 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
153 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
154 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
155 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
156 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127");
157 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
158 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler");
159 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50");
160 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)");
161 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)");
162 MODULE_PARM_DESC(video_nr, "video device numbers");
163 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
164 MODULE_PARM_DESC(radio_nr, "radio device numbers");
165
166 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
167 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
168 MODULE_LICENSE("GPL");
169 MODULE_VERSION(BTTV_VERSION);
170
171 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0)
172 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1)
173 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2)
174 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3)
175 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4)
176 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5)
177 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6)
178 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7)
179 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8)
180 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9)
181
182 /* ----------------------------------------------------------------------- */
183 /* sysfs */
184
185 static ssize_t show_card(struct device *cd,
186 struct device_attribute *attr, char *buf)
187 {
188 struct video_device *vfd = to_video_device(cd);
189 struct bttv *btv = video_get_drvdata(vfd);
190 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
191 }
192 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
193
194 /* ----------------------------------------------------------------------- */
195 /* dvb auto-load setup */
196 #if defined(CONFIG_MODULES) && defined(MODULE)
197 static void request_module_async(struct work_struct *work)
198 {
199 request_module("dvb-bt8xx");
200 }
201
202 static void request_modules(struct bttv *dev)
203 {
204 INIT_WORK(&dev->request_module_wk, request_module_async);
205 schedule_work(&dev->request_module_wk);
206 }
207
208 static void flush_request_modules(struct bttv *dev)
209 {
210 flush_work(&dev->request_module_wk);
211 }
212 #else
213 #define request_modules(dev)
214 #define flush_request_modules(dev) do {} while(0)
215 #endif /* CONFIG_MODULES */
216
217
218 /* ----------------------------------------------------------------------- */
219 /* static data */
220
221 /* special timing tables from conexant... */
222 static u8 SRAM_Table[][60] =
223 {
224 /* PAL digital input over GPIO[7:0] */
225 {
226 45, // 45 bytes following
227 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
228 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
229 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
230 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
231 0x37,0x00,0xAF,0x21,0x00
232 },
233 /* NTSC digital input over GPIO[7:0] */
234 {
235 51, // 51 bytes following
236 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
237 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
238 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
239 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
240 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
241 0x00,
242 },
243 // TGB_NTSC392 // quartzsight
244 // This table has been modified to be used for Fusion Rev D
245 {
246 0x2A, // size of table = 42
247 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
248 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
249 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
250 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
251 0x20, 0x00
252 }
253 };
254
255 /* minhdelayx1 first video pixel we can capture on a line and
256 hdelayx1 start of active video, both relative to rising edge of
257 /HRESET pulse (0H) in 1 / fCLKx1.
258 swidth width of active video and
259 totalwidth total line width, both in 1 / fCLKx1.
260 sqwidth total line width in square pixels.
261 vdelay start of active video in 2 * field lines relative to
262 trailing edge of /VRESET pulse (VDELAY register).
263 sheight height of active video in 2 * field lines.
264 extraheight Added to sheight for cropcap.bounds.height only
265 videostart0 ITU-R frame line number of the line corresponding
266 to vdelay in the first field. */
267 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
268 vdelay, sheight, extraheight, videostart0) \
269 .cropcap.bounds.left = minhdelayx1, \
270 /* * 2 because vertically we count field lines times two, */ \
271 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
272 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
273 /* 4 is a safety margin at the end of the line. */ \
274 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
275 .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \
276 MIN_VDELAY, \
277 .cropcap.defrect.left = hdelayx1, \
278 .cropcap.defrect.top = (videostart0) * 2, \
279 .cropcap.defrect.width = swidth, \
280 .cropcap.defrect.height = sheight, \
281 .cropcap.pixelaspect.numerator = totalwidth, \
282 .cropcap.pixelaspect.denominator = sqwidth,
283
284 const struct bttv_tvnorm bttv_tvnorms[] = {
285 /* PAL-BDGHI */
286 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
287 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
288 {
289 .v4l2_id = V4L2_STD_PAL,
290 .name = "PAL",
291 .Fsc = 35468950,
292 .swidth = 924,
293 .sheight = 576,
294 .totalwidth = 1135,
295 .adelay = 0x7f,
296 .bdelay = 0x72,
297 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
298 .scaledtwidth = 1135,
299 .hdelayx1 = 186,
300 .hactivex1 = 924,
301 .vdelay = 0x20,
302 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
303 .sram = 0,
304 /* ITU-R frame line number of the first VBI line
305 we can capture, of the first and second field.
306 The last line is determined by cropcap.bounds. */
307 .vbistart = { 7, 320 },
308 CROPCAP(/* minhdelayx1 */ 68,
309 /* hdelayx1 */ 186,
310 /* Should be (768 * 1135 + 944 / 2) / 944.
311 cropcap.defrect is used for image width
312 checks, so we keep the old value 924. */
313 /* swidth */ 924,
314 /* totalwidth */ 1135,
315 /* sqwidth */ 944,
316 /* vdelay */ 0x20,
317 /* sheight */ 576,
318 /* bt878 (and bt848?) can capture another
319 line below active video. */
320 /* extraheight */ 2,
321 /* videostart0 */ 23)
322 },{
323 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
324 .name = "NTSC",
325 .Fsc = 28636363,
326 .swidth = 768,
327 .sheight = 480,
328 .totalwidth = 910,
329 .adelay = 0x68,
330 .bdelay = 0x5d,
331 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
332 .scaledtwidth = 910,
333 .hdelayx1 = 128,
334 .hactivex1 = 910,
335 .vdelay = 0x1a,
336 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
337 .sram = 1,
338 .vbistart = { 10, 273 },
339 CROPCAP(/* minhdelayx1 */ 68,
340 /* hdelayx1 */ 128,
341 /* Should be (640 * 910 + 780 / 2) / 780? */
342 /* swidth */ 768,
343 /* totalwidth */ 910,
344 /* sqwidth */ 780,
345 /* vdelay */ 0x1a,
346 /* sheight */ 480,
347 /* extraheight */ 0,
348 /* videostart0 */ 23)
349 },{
350 .v4l2_id = V4L2_STD_SECAM,
351 .name = "SECAM",
352 .Fsc = 35468950,
353 .swidth = 924,
354 .sheight = 576,
355 .totalwidth = 1135,
356 .adelay = 0x7f,
357 .bdelay = 0xb0,
358 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
359 .scaledtwidth = 1135,
360 .hdelayx1 = 186,
361 .hactivex1 = 922,
362 .vdelay = 0x20,
363 .vbipack = 255,
364 .sram = 0, /* like PAL, correct? */
365 .vbistart = { 7, 320 },
366 CROPCAP(/* minhdelayx1 */ 68,
367 /* hdelayx1 */ 186,
368 /* swidth */ 924,
369 /* totalwidth */ 1135,
370 /* sqwidth */ 944,
371 /* vdelay */ 0x20,
372 /* sheight */ 576,
373 /* extraheight */ 0,
374 /* videostart0 */ 23)
375 },{
376 .v4l2_id = V4L2_STD_PAL_Nc,
377 .name = "PAL-Nc",
378 .Fsc = 28636363,
379 .swidth = 640,
380 .sheight = 576,
381 .totalwidth = 910,
382 .adelay = 0x68,
383 .bdelay = 0x5d,
384 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
385 .scaledtwidth = 780,
386 .hdelayx1 = 130,
387 .hactivex1 = 734,
388 .vdelay = 0x1a,
389 .vbipack = 144,
390 .sram = -1,
391 .vbistart = { 7, 320 },
392 CROPCAP(/* minhdelayx1 */ 68,
393 /* hdelayx1 */ 130,
394 /* swidth */ (640 * 910 + 780 / 2) / 780,
395 /* totalwidth */ 910,
396 /* sqwidth */ 780,
397 /* vdelay */ 0x1a,
398 /* sheight */ 576,
399 /* extraheight */ 0,
400 /* videostart0 */ 23)
401 },{
402 .v4l2_id = V4L2_STD_PAL_M,
403 .name = "PAL-M",
404 .Fsc = 28636363,
405 .swidth = 640,
406 .sheight = 480,
407 .totalwidth = 910,
408 .adelay = 0x68,
409 .bdelay = 0x5d,
410 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
411 .scaledtwidth = 780,
412 .hdelayx1 = 135,
413 .hactivex1 = 754,
414 .vdelay = 0x1a,
415 .vbipack = 144,
416 .sram = -1,
417 .vbistart = { 10, 273 },
418 CROPCAP(/* minhdelayx1 */ 68,
419 /* hdelayx1 */ 135,
420 /* swidth */ (640 * 910 + 780 / 2) / 780,
421 /* totalwidth */ 910,
422 /* sqwidth */ 780,
423 /* vdelay */ 0x1a,
424 /* sheight */ 480,
425 /* extraheight */ 0,
426 /* videostart0 */ 23)
427 },{
428 .v4l2_id = V4L2_STD_PAL_N,
429 .name = "PAL-N",
430 .Fsc = 35468950,
431 .swidth = 768,
432 .sheight = 576,
433 .totalwidth = 1135,
434 .adelay = 0x7f,
435 .bdelay = 0x72,
436 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
437 .scaledtwidth = 944,
438 .hdelayx1 = 186,
439 .hactivex1 = 922,
440 .vdelay = 0x20,
441 .vbipack = 144,
442 .sram = -1,
443 .vbistart = { 7, 320 },
444 CROPCAP(/* minhdelayx1 */ 68,
445 /* hdelayx1 */ 186,
446 /* swidth */ (768 * 1135 + 944 / 2) / 944,
447 /* totalwidth */ 1135,
448 /* sqwidth */ 944,
449 /* vdelay */ 0x20,
450 /* sheight */ 576,
451 /* extraheight */ 0,
452 /* videostart0 */ 23)
453 },{
454 .v4l2_id = V4L2_STD_NTSC_M_JP,
455 .name = "NTSC-JP",
456 .Fsc = 28636363,
457 .swidth = 640,
458 .sheight = 480,
459 .totalwidth = 910,
460 .adelay = 0x68,
461 .bdelay = 0x5d,
462 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
463 .scaledtwidth = 780,
464 .hdelayx1 = 135,
465 .hactivex1 = 754,
466 .vdelay = 0x16,
467 .vbipack = 144,
468 .sram = -1,
469 .vbistart = { 10, 273 },
470 CROPCAP(/* minhdelayx1 */ 68,
471 /* hdelayx1 */ 135,
472 /* swidth */ (640 * 910 + 780 / 2) / 780,
473 /* totalwidth */ 910,
474 /* sqwidth */ 780,
475 /* vdelay */ 0x16,
476 /* sheight */ 480,
477 /* extraheight */ 0,
478 /* videostart0 */ 23)
479 },{
480 /* that one hopefully works with the strange timing
481 * which video recorders produce when playing a NTSC
482 * tape on a PAL TV ... */
483 .v4l2_id = V4L2_STD_PAL_60,
484 .name = "PAL-60",
485 .Fsc = 35468950,
486 .swidth = 924,
487 .sheight = 480,
488 .totalwidth = 1135,
489 .adelay = 0x7f,
490 .bdelay = 0x72,
491 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
492 .scaledtwidth = 1135,
493 .hdelayx1 = 186,
494 .hactivex1 = 924,
495 .vdelay = 0x1a,
496 .vbipack = 255,
497 .vtotal = 524,
498 .sram = -1,
499 .vbistart = { 10, 273 },
500 CROPCAP(/* minhdelayx1 */ 68,
501 /* hdelayx1 */ 186,
502 /* swidth */ 924,
503 /* totalwidth */ 1135,
504 /* sqwidth */ 944,
505 /* vdelay */ 0x1a,
506 /* sheight */ 480,
507 /* extraheight */ 0,
508 /* videostart0 */ 23)
509 }
510 };
511 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
512
513 /* ----------------------------------------------------------------------- */
514 /* bttv format list
515 packed pixel formats must come first */
516 static const struct bttv_format formats[] = {
517 {
518 .name = "8 bpp, gray",
519 .fourcc = V4L2_PIX_FMT_GREY,
520 .btformat = BT848_COLOR_FMT_Y8,
521 .depth = 8,
522 .flags = FORMAT_FLAGS_PACKED,
523 },{
524 .name = "8 bpp, dithered color",
525 .fourcc = V4L2_PIX_FMT_HI240,
526 .btformat = BT848_COLOR_FMT_RGB8,
527 .depth = 8,
528 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
529 },{
530 .name = "15 bpp RGB, le",
531 .fourcc = V4L2_PIX_FMT_RGB555,
532 .btformat = BT848_COLOR_FMT_RGB15,
533 .depth = 16,
534 .flags = FORMAT_FLAGS_PACKED,
535 },{
536 .name = "15 bpp RGB, be",
537 .fourcc = V4L2_PIX_FMT_RGB555X,
538 .btformat = BT848_COLOR_FMT_RGB15,
539 .btswap = 0x03, /* byteswap */
540 .depth = 16,
541 .flags = FORMAT_FLAGS_PACKED,
542 },{
543 .name = "16 bpp RGB, le",
544 .fourcc = V4L2_PIX_FMT_RGB565,
545 .btformat = BT848_COLOR_FMT_RGB16,
546 .depth = 16,
547 .flags = FORMAT_FLAGS_PACKED,
548 },{
549 .name = "16 bpp RGB, be",
550 .fourcc = V4L2_PIX_FMT_RGB565X,
551 .btformat = BT848_COLOR_FMT_RGB16,
552 .btswap = 0x03, /* byteswap */
553 .depth = 16,
554 .flags = FORMAT_FLAGS_PACKED,
555 },{
556 .name = "24 bpp RGB, le",
557 .fourcc = V4L2_PIX_FMT_BGR24,
558 .btformat = BT848_COLOR_FMT_RGB24,
559 .depth = 24,
560 .flags = FORMAT_FLAGS_PACKED,
561 },{
562 .name = "32 bpp RGB, le",
563 .fourcc = V4L2_PIX_FMT_BGR32,
564 .btformat = BT848_COLOR_FMT_RGB32,
565 .depth = 32,
566 .flags = FORMAT_FLAGS_PACKED,
567 },{
568 .name = "32 bpp RGB, be",
569 .fourcc = V4L2_PIX_FMT_RGB32,
570 .btformat = BT848_COLOR_FMT_RGB32,
571 .btswap = 0x0f, /* byte+word swap */
572 .depth = 32,
573 .flags = FORMAT_FLAGS_PACKED,
574 },{
575 .name = "4:2:2, packed, YUYV",
576 .fourcc = V4L2_PIX_FMT_YUYV,
577 .btformat = BT848_COLOR_FMT_YUY2,
578 .depth = 16,
579 .flags = FORMAT_FLAGS_PACKED,
580 },{
581 .name = "4:2:2, packed, UYVY",
582 .fourcc = V4L2_PIX_FMT_UYVY,
583 .btformat = BT848_COLOR_FMT_YUY2,
584 .btswap = 0x03, /* byteswap */
585 .depth = 16,
586 .flags = FORMAT_FLAGS_PACKED,
587 },{
588 .name = "4:2:2, planar, Y-Cb-Cr",
589 .fourcc = V4L2_PIX_FMT_YUV422P,
590 .btformat = BT848_COLOR_FMT_YCrCb422,
591 .depth = 16,
592 .flags = FORMAT_FLAGS_PLANAR,
593 .hshift = 1,
594 .vshift = 0,
595 },{
596 .name = "4:2:0, planar, Y-Cb-Cr",
597 .fourcc = V4L2_PIX_FMT_YUV420,
598 .btformat = BT848_COLOR_FMT_YCrCb422,
599 .depth = 12,
600 .flags = FORMAT_FLAGS_PLANAR,
601 .hshift = 1,
602 .vshift = 1,
603 },{
604 .name = "4:2:0, planar, Y-Cr-Cb",
605 .fourcc = V4L2_PIX_FMT_YVU420,
606 .btformat = BT848_COLOR_FMT_YCrCb422,
607 .depth = 12,
608 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
609 .hshift = 1,
610 .vshift = 1,
611 },{
612 .name = "4:1:1, planar, Y-Cb-Cr",
613 .fourcc = V4L2_PIX_FMT_YUV411P,
614 .btformat = BT848_COLOR_FMT_YCrCb411,
615 .depth = 12,
616 .flags = FORMAT_FLAGS_PLANAR,
617 .hshift = 2,
618 .vshift = 0,
619 },{
620 .name = "4:1:0, planar, Y-Cb-Cr",
621 .fourcc = V4L2_PIX_FMT_YUV410,
622 .btformat = BT848_COLOR_FMT_YCrCb411,
623 .depth = 9,
624 .flags = FORMAT_FLAGS_PLANAR,
625 .hshift = 2,
626 .vshift = 2,
627 },{
628 .name = "4:1:0, planar, Y-Cr-Cb",
629 .fourcc = V4L2_PIX_FMT_YVU410,
630 .btformat = BT848_COLOR_FMT_YCrCb411,
631 .depth = 9,
632 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
633 .hshift = 2,
634 .vshift = 2,
635 },{
636 .name = "raw scanlines",
637 .fourcc = -1,
638 .btformat = BT848_COLOR_FMT_RAW,
639 .depth = 8,
640 .flags = FORMAT_FLAGS_RAW,
641 }
642 };
643 static const unsigned int FORMATS = ARRAY_SIZE(formats);
644
645 /* ----------------------------------------------------------------------- */
646 /* resource management */
647
648 /*
649 RESOURCE_ allocated by freed by
650
651 VIDEO_READ bttv_read 1) bttv_read 2)
652
653 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
654 VIDIOC_QBUF 1) bttv_release
655 VIDIOCMCAPTURE 1)
656
657 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
658 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
659 3) bttv_release
660
661 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
662 VIDIOC_QBUF 1) bttv_release
663 bttv_read, bttv_poll 1) 4)
664
665 1) The resource must be allocated when we enter buffer prepare functions
666 and remain allocated while buffers are in the DMA queue.
667 2) This is a single frame read.
668 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
669 RESOURCE_OVERLAY is allocated.
670 4) This is a continuous read, implies VIDIOC_STREAMON.
671
672 Note this driver permits video input and standard changes regardless if
673 resources are allocated.
674 */
675
676 #define VBI_RESOURCES (RESOURCE_VBI)
677 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
678 RESOURCE_VIDEO_STREAM | \
679 RESOURCE_OVERLAY)
680
681 static
682 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
683 {
684 int xbits; /* mutual exclusive resources */
685
686 if (fh->resources & bit)
687 /* have it already allocated */
688 return 1;
689
690 xbits = bit;
691 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
692 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
693
694 /* is it free? */
695 if (btv->resources & xbits) {
696 /* no, someone else uses it */
697 goto fail;
698 }
699
700 if ((bit & VIDEO_RESOURCES)
701 && 0 == (btv->resources & VIDEO_RESOURCES)) {
702 /* Do crop - use current, don't - use default parameters. */
703 __s32 top = btv->crop[!!fh->do_crop].rect.top;
704
705 if (btv->vbi_end > top)
706 goto fail;
707
708 /* We cannot capture the same line as video and VBI data.
709 Claim scan lines crop[].rect.top to bottom. */
710 btv->crop_start = top;
711 } else if (bit & VBI_RESOURCES) {
712 __s32 end = fh->vbi_fmt.end;
713
714 if (end > btv->crop_start)
715 goto fail;
716
717 /* Claim scan lines above fh->vbi_fmt.end. */
718 btv->vbi_end = end;
719 }
720
721 /* it's free, grab it */
722 fh->resources |= bit;
723 btv->resources |= bit;
724 return 1;
725
726 fail:
727 return 0;
728 }
729
730 static
731 int check_btres(struct bttv_fh *fh, int bit)
732 {
733 return (fh->resources & bit);
734 }
735
736 static
737 int locked_btres(struct bttv *btv, int bit)
738 {
739 return (btv->resources & bit);
740 }
741
742 /* Call with btv->lock down. */
743 static void
744 disclaim_vbi_lines(struct bttv *btv)
745 {
746 btv->vbi_end = 0;
747 }
748
749 /* Call with btv->lock down. */
750 static void
751 disclaim_video_lines(struct bttv *btv)
752 {
753 const struct bttv_tvnorm *tvnorm;
754 u8 crop;
755
756 tvnorm = &bttv_tvnorms[btv->tvnorm];
757 btv->crop_start = tvnorm->cropcap.bounds.top
758 + tvnorm->cropcap.bounds.height;
759
760 /* VBI capturing ends at VDELAY, start of video capturing, no
761 matter how many lines the VBI RISC program expects. When video
762 capturing is off, it shall no longer "preempt" VBI capturing,
763 so we set VDELAY to maximum. */
764 crop = btread(BT848_E_CROP) | 0xc0;
765 btwrite(crop, BT848_E_CROP);
766 btwrite(0xfe, BT848_E_VDELAY_LO);
767 btwrite(crop, BT848_O_CROP);
768 btwrite(0xfe, BT848_O_VDELAY_LO);
769 }
770
771 static
772 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
773 {
774 if ((fh->resources & bits) != bits) {
775 /* trying to free resources not allocated by us ... */
776 pr_err("BUG! (btres)\n");
777 }
778 fh->resources &= ~bits;
779 btv->resources &= ~bits;
780
781 bits = btv->resources;
782
783 if (0 == (bits & VIDEO_RESOURCES))
784 disclaim_video_lines(btv);
785
786 if (0 == (bits & VBI_RESOURCES))
787 disclaim_vbi_lines(btv);
788 }
789
790 /* ----------------------------------------------------------------------- */
791 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
792
793 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
794 PLL_X = Reference pre-divider (0=1, 1=2)
795 PLL_C = Post divider (0=6, 1=4)
796 PLL_I = Integer input
797 PLL_F = Fractional input
798
799 F_input = 28.636363 MHz:
800 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
801 */
802
803 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
804 {
805 unsigned char fl, fh, fi;
806
807 /* prevent overflows */
808 fin/=4;
809 fout/=4;
810
811 fout*=12;
812 fi=fout/fin;
813
814 fout=(fout%fin)*256;
815 fh=fout/fin;
816
817 fout=(fout%fin)*256;
818 fl=fout/fin;
819
820 btwrite(fl, BT848_PLL_F_LO);
821 btwrite(fh, BT848_PLL_F_HI);
822 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
823 }
824
825 static void set_pll(struct bttv *btv)
826 {
827 int i;
828
829 if (!btv->pll.pll_crystal)
830 return;
831
832 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
833 dprintk("%d: PLL: no change required\n", btv->c.nr);
834 return;
835 }
836
837 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
838 /* no PLL needed */
839 if (btv->pll.pll_current == 0)
840 return;
841 if (bttv_verbose)
842 pr_info("%d: PLL can sleep, using XTAL (%d)\n",
843 btv->c.nr, btv->pll.pll_ifreq);
844 btwrite(0x00,BT848_TGCTRL);
845 btwrite(0x00,BT848_PLL_XCI);
846 btv->pll.pll_current = 0;
847 return;
848 }
849
850 if (bttv_verbose)
851 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
852 btv->c.nr,
853 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
854 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
855
856 for (i=0; i<10; i++) {
857 /* Let other people run while the PLL stabilizes */
858 msleep(10);
859
860 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
861 btwrite(0,BT848_DSTATUS);
862 } else {
863 btwrite(0x08,BT848_TGCTRL);
864 btv->pll.pll_current = btv->pll.pll_ofreq;
865 if (bttv_verbose)
866 pr_info("PLL set ok\n");
867 return;
868 }
869 }
870 btv->pll.pll_current = -1;
871 if (bttv_verbose)
872 pr_info("Setting PLL failed\n");
873 return;
874 }
875
876 /* used to switch between the bt848's analog/digital video capture modes */
877 static void bt848A_set_timing(struct bttv *btv)
878 {
879 int i, len;
880 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
881 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
882
883 if (btv->input == btv->dig) {
884 dprintk("%d: load digital timing table (table_idx=%d)\n",
885 btv->c.nr,table_idx);
886
887 /* timing change...reset timing generator address */
888 btwrite(0x00, BT848_TGCTRL);
889 btwrite(0x02, BT848_TGCTRL);
890 btwrite(0x00, BT848_TGCTRL);
891
892 len=SRAM_Table[table_idx][0];
893 for(i = 1; i <= len; i++)
894 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
895 btv->pll.pll_ofreq = 27000000;
896
897 set_pll(btv);
898 btwrite(0x11, BT848_TGCTRL);
899 btwrite(0x41, BT848_DVSIF);
900 } else {
901 btv->pll.pll_ofreq = fsc;
902 set_pll(btv);
903 btwrite(0x0, BT848_DVSIF);
904 }
905 }
906
907 /* ----------------------------------------------------------------------- */
908
909 static void bt848_bright(struct bttv *btv, int bright)
910 {
911 int value;
912
913 // printk("set bright: %d\n", bright); // DEBUG
914 btv->bright = bright;
915
916 /* We want -128 to 127 we get 0-65535 */
917 value = (bright >> 8) - 128;
918 btwrite(value & 0xff, BT848_BRIGHT);
919 }
920
921 static void bt848_hue(struct bttv *btv, int hue)
922 {
923 int value;
924
925 btv->hue = hue;
926
927 /* -128 to 127 */
928 value = (hue >> 8) - 128;
929 btwrite(value & 0xff, BT848_HUE);
930 }
931
932 static void bt848_contrast(struct bttv *btv, int cont)
933 {
934 int value,hibit;
935
936 btv->contrast = cont;
937
938 /* 0-511 */
939 value = (cont >> 7);
940 hibit = (value >> 6) & 4;
941 btwrite(value & 0xff, BT848_CONTRAST_LO);
942 btaor(hibit, ~4, BT848_E_CONTROL);
943 btaor(hibit, ~4, BT848_O_CONTROL);
944 }
945
946 static void bt848_sat(struct bttv *btv, int color)
947 {
948 int val_u,val_v,hibits;
949
950 btv->saturation = color;
951
952 /* 0-511 for the color */
953 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
954 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
955 hibits = (val_u >> 7) & 2;
956 hibits |= (val_v >> 8) & 1;
957 btwrite(val_u & 0xff, BT848_SAT_U_LO);
958 btwrite(val_v & 0xff, BT848_SAT_V_LO);
959 btaor(hibits, ~3, BT848_E_CONTROL);
960 btaor(hibits, ~3, BT848_O_CONTROL);
961 }
962
963 /* ----------------------------------------------------------------------- */
964
965 static int
966 video_mux(struct bttv *btv, unsigned int input)
967 {
968 int mux,mask2;
969
970 if (input >= bttv_tvcards[btv->c.type].video_inputs)
971 return -EINVAL;
972
973 /* needed by RemoteVideo MX */
974 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
975 if (mask2)
976 gpio_inout(mask2,mask2);
977
978 if (input == btv->svhs) {
979 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
980 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
981 } else {
982 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
983 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
984 }
985 mux = bttv_muxsel(btv, input);
986 btaor(mux<<5, ~(3<<5), BT848_IFORM);
987 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
988
989 /* card specific hook */
990 if(bttv_tvcards[btv->c.type].muxsel_hook)
991 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
992 return 0;
993 }
994
995 static char *audio_modes[] = {
996 "audio: tuner", "audio: radio", "audio: extern",
997 "audio: intern", "audio: mute"
998 };
999
1000 static void
1001 audio_mux_gpio(struct bttv *btv, int input, int mute)
1002 {
1003 int gpio_val, signal, mute_gpio;
1004
1005 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1006 bttv_tvcards[btv->c.type].gpiomask);
1007 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1008
1009 /* automute */
1010 mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
1011 && !btv->has_radio_tuner);
1012
1013 if (mute_gpio)
1014 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1015 else
1016 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1017
1018 switch (btv->c.type) {
1019 case BTTV_BOARD_VOODOOTV_FM:
1020 case BTTV_BOARD_VOODOOTV_200:
1021 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1022 break;
1023
1024 default:
1025 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1026 }
1027
1028 if (bttv_gpio)
1029 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
1030 }
1031
1032 static int
1033 audio_mute(struct bttv *btv, int mute)
1034 {
1035 struct v4l2_ctrl *ctrl;
1036
1037 audio_mux_gpio(btv, btv->audio_input, mute);
1038
1039 if (btv->sd_msp34xx) {
1040 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1041 if (ctrl)
1042 v4l2_ctrl_s_ctrl(ctrl, mute);
1043 }
1044 if (btv->sd_tvaudio) {
1045 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1046 if (ctrl)
1047 v4l2_ctrl_s_ctrl(ctrl, mute);
1048 }
1049 if (btv->sd_tda7432) {
1050 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1051 if (ctrl)
1052 v4l2_ctrl_s_ctrl(ctrl, mute);
1053 }
1054 return 0;
1055 }
1056
1057 static int
1058 audio_input(struct bttv *btv, int input)
1059 {
1060 audio_mux_gpio(btv, input, btv->mute);
1061
1062 if (btv->sd_msp34xx) {
1063 u32 in;
1064
1065 /* Note: the inputs tuner/radio/extern/intern are translated
1066 to msp routings. This assumes common behavior for all msp3400
1067 based TV cards. When this assumption fails, then the
1068 specific MSP routing must be added to the card table.
1069 For now this is sufficient. */
1070 switch (input) {
1071 case TVAUDIO_INPUT_RADIO:
1072 /* Some boards need the msp do to the radio demod */
1073 if (btv->radio_uses_msp_demodulator) {
1074 in = MSP_INPUT_DEFAULT;
1075 break;
1076 }
1077 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1078 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1079 break;
1080 case TVAUDIO_INPUT_EXTERN:
1081 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1082 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1083 break;
1084 case TVAUDIO_INPUT_INTERN:
1085 /* Yes, this is the same input as for RADIO. I doubt
1086 if this is ever used. The only board with an INTERN
1087 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1088 that was tested. My guess is that the whole INTERN
1089 input does not work. */
1090 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1091 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1092 break;
1093 case TVAUDIO_INPUT_TUNER:
1094 default:
1095 /* This is the only card that uses TUNER2, and afaik,
1096 is the only difference between the VOODOOTV_FM
1097 and VOODOOTV_200 */
1098 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1099 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1100 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1101 else
1102 in = MSP_INPUT_DEFAULT;
1103 break;
1104 }
1105 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
1106 in, MSP_OUTPUT_DEFAULT, 0);
1107 }
1108 if (btv->sd_tvaudio) {
1109 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
1110 input, 0, 0);
1111 }
1112 return 0;
1113 }
1114
1115 static void
1116 bttv_crop_calc_limits(struct bttv_crop *c)
1117 {
1118 /* Scale factor min. 1:1, max. 16:1. Min. image size
1119 48 x 32. Scaled width must be a multiple of 4. */
1120
1121 if (1) {
1122 /* For bug compatibility with VIDIOCGCAP and image
1123 size checks in earlier driver versions. */
1124 c->min_scaled_width = 48;
1125 c->min_scaled_height = 32;
1126 } else {
1127 c->min_scaled_width =
1128 (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
1129 c->min_scaled_height =
1130 max_t(unsigned int, 32, c->rect.height >> 4);
1131 }
1132
1133 c->max_scaled_width = c->rect.width & ~3;
1134 c->max_scaled_height = c->rect.height;
1135 }
1136
1137 static void
1138 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1139 {
1140 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1141 bttv_crop_calc_limits(c);
1142 }
1143
1144 /* Call with btv->lock down. */
1145 static int
1146 set_tvnorm(struct bttv *btv, unsigned int norm)
1147 {
1148 const struct bttv_tvnorm *tvnorm;
1149 v4l2_std_id id;
1150
1151 BUG_ON(norm >= BTTV_TVNORMS);
1152 BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1153
1154 tvnorm = &bttv_tvnorms[norm];
1155
1156 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1157 sizeof (tvnorm->cropcap))) {
1158 bttv_crop_reset(&btv->crop[0], norm);
1159 btv->crop[1] = btv->crop[0]; /* current = default */
1160
1161 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1162 btv->crop_start = tvnorm->cropcap.bounds.top
1163 + tvnorm->cropcap.bounds.height;
1164 }
1165 }
1166
1167 btv->tvnorm = norm;
1168
1169 btwrite(tvnorm->adelay, BT848_ADELAY);
1170 btwrite(tvnorm->bdelay, BT848_BDELAY);
1171 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1172 BT848_IFORM);
1173 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1174 btwrite(1, BT848_VBI_PACK_DEL);
1175 bt848A_set_timing(btv);
1176
1177 switch (btv->c.type) {
1178 case BTTV_BOARD_VOODOOTV_FM:
1179 case BTTV_BOARD_VOODOOTV_200:
1180 bttv_tda9880_setnorm(btv, gpio_read());
1181 break;
1182 }
1183 id = tvnorm->v4l2_id;
1184 bttv_call_all(btv, video, s_std, id);
1185
1186 return 0;
1187 }
1188
1189 /* Call with btv->lock down. */
1190 static void
1191 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1192 {
1193 unsigned long flags;
1194
1195 btv->input = input;
1196 if (irq_iswitch) {
1197 spin_lock_irqsave(&btv->s_lock,flags);
1198 if (btv->curr.frame_irq) {
1199 /* active capture -> delayed input switch */
1200 btv->new_input = input;
1201 } else {
1202 video_mux(btv,input);
1203 }
1204 spin_unlock_irqrestore(&btv->s_lock,flags);
1205 } else {
1206 video_mux(btv,input);
1207 }
1208 btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1209 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
1210 audio_input(btv, btv->audio_input);
1211 set_tvnorm(btv, norm);
1212 }
1213
1214 static void init_irqreg(struct bttv *btv)
1215 {
1216 /* clear status */
1217 btwrite(0xfffffUL, BT848_INT_STAT);
1218
1219 if (bttv_tvcards[btv->c.type].no_video) {
1220 /* i2c only */
1221 btwrite(BT848_INT_I2CDONE,
1222 BT848_INT_MASK);
1223 } else {
1224 /* full video */
1225 btwrite((btv->triton1) |
1226 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1227 BT848_INT_SCERR |
1228 (fdsr ? BT848_INT_FDSR : 0) |
1229 BT848_INT_RISCI | BT848_INT_OCERR |
1230 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1231 BT848_INT_I2CDONE,
1232 BT848_INT_MASK);
1233 }
1234 }
1235
1236 static void init_bt848(struct bttv *btv)
1237 {
1238 if (bttv_tvcards[btv->c.type].no_video) {
1239 /* very basic init only */
1240 init_irqreg(btv);
1241 return;
1242 }
1243
1244 btwrite(0x00, BT848_CAP_CTL);
1245 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1246 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1247
1248 /* set planar and packed mode trigger points and */
1249 /* set rising edge of inverted GPINTR pin as irq trigger */
1250 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1251 BT848_GPIO_DMA_CTL_PLTP1_16|
1252 BT848_GPIO_DMA_CTL_PLTP23_16|
1253 BT848_GPIO_DMA_CTL_GPINTC|
1254 BT848_GPIO_DMA_CTL_GPINTI,
1255 BT848_GPIO_DMA_CTL);
1256
1257 btwrite(0x20, BT848_E_VSCALE_HI);
1258 btwrite(0x20, BT848_O_VSCALE_HI);
1259
1260 v4l2_ctrl_handler_setup(&btv->ctrl_handler);
1261
1262 /* interrupt */
1263 init_irqreg(btv);
1264 }
1265
1266 static void bttv_reinit_bt848(struct bttv *btv)
1267 {
1268 unsigned long flags;
1269
1270 if (bttv_verbose)
1271 pr_info("%d: reset, reinitialize\n", btv->c.nr);
1272 spin_lock_irqsave(&btv->s_lock,flags);
1273 btv->errors=0;
1274 bttv_set_dma(btv,0);
1275 spin_unlock_irqrestore(&btv->s_lock,flags);
1276
1277 init_bt848(btv);
1278 btv->pll.pll_current = -1;
1279 set_input(btv, btv->input, btv->tvnorm);
1280 }
1281
1282 static int bttv_s_ctrl(struct v4l2_ctrl *c)
1283 {
1284 struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
1285 int val;
1286
1287 switch (c->id) {
1288 case V4L2_CID_BRIGHTNESS:
1289 bt848_bright(btv, c->val);
1290 break;
1291 case V4L2_CID_HUE:
1292 bt848_hue(btv, c->val);
1293 break;
1294 case V4L2_CID_CONTRAST:
1295 bt848_contrast(btv, c->val);
1296 break;
1297 case V4L2_CID_SATURATION:
1298 bt848_sat(btv, c->val);
1299 break;
1300 case V4L2_CID_COLOR_KILLER:
1301 if (c->val) {
1302 btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1303 btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1304 } else {
1305 btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1306 btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1307 }
1308 break;
1309 case V4L2_CID_AUDIO_MUTE:
1310 audio_mute(btv, c->val);
1311 btv->mute = c->val;
1312 break;
1313 case V4L2_CID_AUDIO_VOLUME:
1314 btv->volume_gpio(btv, c->val);
1315 break;
1316
1317 case V4L2_CID_CHROMA_AGC:
1318 val = c->val ? BT848_SCLOOP_CAGC : 0;
1319 btwrite(val, BT848_E_SCLOOP);
1320 btwrite(val, BT848_O_SCLOOP);
1321 break;
1322 case V4L2_CID_PRIVATE_COMBFILTER:
1323 btv->opt_combfilter = c->val;
1324 break;
1325 case V4L2_CID_PRIVATE_LUMAFILTER:
1326 if (c->val) {
1327 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1328 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1329 } else {
1330 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1331 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1332 }
1333 break;
1334 case V4L2_CID_PRIVATE_AUTOMUTE:
1335 btv->opt_automute = c->val;
1336 break;
1337 case V4L2_CID_PRIVATE_AGC_CRUSH:
1338 btwrite(BT848_ADC_RESERVED |
1339 (c->val ? BT848_ADC_CRUSH : 0),
1340 BT848_ADC);
1341 break;
1342 case V4L2_CID_PRIVATE_VCR_HACK:
1343 btv->opt_vcr_hack = c->val;
1344 break;
1345 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1346 btwrite(c->val, BT848_WC_UP);
1347 break;
1348 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1349 btwrite(c->val, BT848_WC_DOWN);
1350 break;
1351 case V4L2_CID_PRIVATE_UV_RATIO:
1352 btv->opt_uv_ratio = c->val;
1353 bt848_sat(btv, btv->saturation);
1354 break;
1355 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1356 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
1357 break;
1358 case V4L2_CID_PRIVATE_CORING:
1359 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
1360 break;
1361 default:
1362 return -EINVAL;
1363 }
1364 return 0;
1365 }
1366
1367 /* ----------------------------------------------------------------------- */
1368
1369 static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
1370 .s_ctrl = bttv_s_ctrl,
1371 };
1372
1373 static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
1374 .ops = &bttv_ctrl_ops,
1375 .id = V4L2_CID_PRIVATE_COMBFILTER,
1376 .name = "Comb Filter",
1377 .type = V4L2_CTRL_TYPE_BOOLEAN,
1378 .min = 0,
1379 .max = 1,
1380 .step = 1,
1381 .def = 1,
1382 };
1383
1384 static struct v4l2_ctrl_config bttv_ctrl_automute = {
1385 .ops = &bttv_ctrl_ops,
1386 .id = V4L2_CID_PRIVATE_AUTOMUTE,
1387 .name = "Auto Mute",
1388 .type = V4L2_CTRL_TYPE_BOOLEAN,
1389 .min = 0,
1390 .max = 1,
1391 .step = 1,
1392 .def = 1,
1393 };
1394
1395 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
1396 .ops = &bttv_ctrl_ops,
1397 .id = V4L2_CID_PRIVATE_LUMAFILTER,
1398 .name = "Luma Decimation Filter",
1399 .type = V4L2_CTRL_TYPE_BOOLEAN,
1400 .min = 0,
1401 .max = 1,
1402 .step = 1,
1403 .def = 1,
1404 };
1405
1406 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
1407 .ops = &bttv_ctrl_ops,
1408 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
1409 .name = "AGC Crush",
1410 .type = V4L2_CTRL_TYPE_BOOLEAN,
1411 .min = 0,
1412 .max = 1,
1413 .step = 1,
1414 .def = 1,
1415 };
1416
1417 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
1418 .ops = &bttv_ctrl_ops,
1419 .id = V4L2_CID_PRIVATE_VCR_HACK,
1420 .name = "VCR Hack",
1421 .type = V4L2_CTRL_TYPE_BOOLEAN,
1422 .min = 0,
1423 .max = 1,
1424 .step = 1,
1425 .def = 1,
1426 };
1427
1428 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
1429 .ops = &bttv_ctrl_ops,
1430 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
1431 .name = "Whitecrush Lower",
1432 .type = V4L2_CTRL_TYPE_INTEGER,
1433 .min = 0,
1434 .max = 255,
1435 .step = 1,
1436 .def = 0x7f,
1437 };
1438
1439 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
1440 .ops = &bttv_ctrl_ops,
1441 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
1442 .name = "Whitecrush Upper",
1443 .type = V4L2_CTRL_TYPE_INTEGER,
1444 .min = 0,
1445 .max = 255,
1446 .step = 1,
1447 .def = 0xcf,
1448 };
1449
1450 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
1451 .ops = &bttv_ctrl_ops,
1452 .id = V4L2_CID_PRIVATE_UV_RATIO,
1453 .name = "UV Ratio",
1454 .type = V4L2_CTRL_TYPE_INTEGER,
1455 .min = 0,
1456 .max = 100,
1457 .step = 1,
1458 .def = 50,
1459 };
1460
1461 static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
1462 .ops = &bttv_ctrl_ops,
1463 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
1464 .name = "Full Luma Range",
1465 .type = V4L2_CTRL_TYPE_BOOLEAN,
1466 .min = 0,
1467 .max = 1,
1468 .step = 1,
1469 };
1470
1471 static struct v4l2_ctrl_config bttv_ctrl_coring = {
1472 .ops = &bttv_ctrl_ops,
1473 .id = V4L2_CID_PRIVATE_CORING,
1474 .name = "Coring",
1475 .type = V4L2_CTRL_TYPE_INTEGER,
1476 .min = 0,
1477 .max = 3,
1478 .step = 1,
1479 };
1480
1481
1482 /* ----------------------------------------------------------------------- */
1483
1484 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1485 {
1486 unsigned int outbits, data;
1487 outbits = btread(BT848_GPIO_OUT_EN);
1488 data = btread(BT848_GPIO_DATA);
1489 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1490 btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
1491 }
1492
1493 static void bttv_field_count(struct bttv *btv)
1494 {
1495 int need_count = 0;
1496
1497 if (btv->users)
1498 need_count++;
1499
1500 if (need_count) {
1501 /* start field counter */
1502 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1503 } else {
1504 /* stop field counter */
1505 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1506 btv->field_count = 0;
1507 }
1508 }
1509
1510 static const struct bttv_format*
1511 format_by_fourcc(int fourcc)
1512 {
1513 unsigned int i;
1514
1515 for (i = 0; i < FORMATS; i++) {
1516 if (-1 == formats[i].fourcc)
1517 continue;
1518 if (formats[i].fourcc == fourcc)
1519 return formats+i;
1520 }
1521 return NULL;
1522 }
1523
1524 /* ----------------------------------------------------------------------- */
1525 /* misc helpers */
1526
1527 static int
1528 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1529 struct bttv_buffer *new)
1530 {
1531 struct bttv_buffer *old;
1532 unsigned long flags;
1533
1534 dprintk("switch_overlay: enter [new=%p]\n", new);
1535 if (new)
1536 new->vb.state = VIDEOBUF_DONE;
1537 spin_lock_irqsave(&btv->s_lock,flags);
1538 old = btv->screen;
1539 btv->screen = new;
1540 btv->loop_irq |= 1;
1541 bttv_set_dma(btv, 0x03);
1542 spin_unlock_irqrestore(&btv->s_lock,flags);
1543 if (NULL != old) {
1544 dprintk("switch_overlay: old=%p state is %d\n",
1545 old, old->vb.state);
1546 bttv_dma_free(&fh->cap,btv, old);
1547 kfree(old);
1548 }
1549 if (NULL == new)
1550 free_btres_lock(btv,fh,RESOURCE_OVERLAY);
1551 dprintk("switch_overlay: done\n");
1552 return 0;
1553 }
1554
1555 /* ----------------------------------------------------------------------- */
1556 /* video4linux (1) interface */
1557
1558 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1559 struct bttv_buffer *buf,
1560 const struct bttv_format *fmt,
1561 unsigned int width, unsigned int height,
1562 enum v4l2_field field)
1563 {
1564 struct bttv_fh *fh = q->priv_data;
1565 int redo_dma_risc = 0;
1566 struct bttv_crop c;
1567 int norm;
1568 int rc;
1569
1570 /* check settings */
1571 if (NULL == fmt)
1572 return -EINVAL;
1573 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1574 width = RAW_BPL;
1575 height = RAW_LINES*2;
1576 if (width*height > buf->vb.bsize)
1577 return -EINVAL;
1578 buf->vb.size = buf->vb.bsize;
1579
1580 /* Make sure tvnorm and vbi_end remain consistent
1581 until we're done. */
1582
1583 norm = btv->tvnorm;
1584
1585 /* In this mode capturing always starts at defrect.top
1586 (default VDELAY), ignoring cropping parameters. */
1587 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1588 return -EINVAL;
1589 }
1590
1591 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1592 } else {
1593 norm = btv->tvnorm;
1594 c = btv->crop[!!fh->do_crop];
1595
1596 if (width < c.min_scaled_width ||
1597 width > c.max_scaled_width ||
1598 height < c.min_scaled_height)
1599 return -EINVAL;
1600
1601 switch (field) {
1602 case V4L2_FIELD_TOP:
1603 case V4L2_FIELD_BOTTOM:
1604 case V4L2_FIELD_ALTERNATE:
1605 /* btv->crop counts frame lines. Max. scale
1606 factor is 16:1 for frames, 8:1 for fields. */
1607 if (height * 2 > c.max_scaled_height)
1608 return -EINVAL;
1609 break;
1610
1611 default:
1612 if (height > c.max_scaled_height)
1613 return -EINVAL;
1614 break;
1615 }
1616
1617 buf->vb.size = (width * height * fmt->depth) >> 3;
1618 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1619 return -EINVAL;
1620 }
1621
1622 /* alloc + fill struct bttv_buffer (if changed) */
1623 if (buf->vb.width != width || buf->vb.height != height ||
1624 buf->vb.field != field ||
1625 buf->tvnorm != norm || buf->fmt != fmt ||
1626 buf->crop.top != c.rect.top ||
1627 buf->crop.left != c.rect.left ||
1628 buf->crop.width != c.rect.width ||
1629 buf->crop.height != c.rect.height) {
1630 buf->vb.width = width;
1631 buf->vb.height = height;
1632 buf->vb.field = field;
1633 buf->tvnorm = norm;
1634 buf->fmt = fmt;
1635 buf->crop = c.rect;
1636 redo_dma_risc = 1;
1637 }
1638
1639 /* alloc risc memory */
1640 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1641 redo_dma_risc = 1;
1642 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1643 goto fail;
1644 }
1645
1646 if (redo_dma_risc)
1647 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1648 goto fail;
1649
1650 buf->vb.state = VIDEOBUF_PREPARED;
1651 return 0;
1652
1653 fail:
1654 bttv_dma_free(q,btv,buf);
1655 return rc;
1656 }
1657
1658 static int
1659 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1660 {
1661 struct bttv_fh *fh = q->priv_data;
1662
1663 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1664 if (0 == *count)
1665 *count = gbuffers;
1666 if (*size * *count > gbuffers * gbufsize)
1667 *count = (gbuffers * gbufsize) / *size;
1668 return 0;
1669 }
1670
1671 static int
1672 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1673 enum v4l2_field field)
1674 {
1675 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1676 struct bttv_fh *fh = q->priv_data;
1677
1678 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1679 fh->width, fh->height, field);
1680 }
1681
1682 static void
1683 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1684 {
1685 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1686 struct bttv_fh *fh = q->priv_data;
1687 struct bttv *btv = fh->btv;
1688
1689 buf->vb.state = VIDEOBUF_QUEUED;
1690 list_add_tail(&buf->vb.queue,&btv->capture);
1691 if (!btv->curr.frame_irq) {
1692 btv->loop_irq |= 1;
1693 bttv_set_dma(btv, 0x03);
1694 }
1695 }
1696
1697 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1698 {
1699 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1700 struct bttv_fh *fh = q->priv_data;
1701
1702 bttv_dma_free(q,fh->btv,buf);
1703 }
1704
1705 static const struct videobuf_queue_ops bttv_video_qops = {
1706 .buf_setup = buffer_setup,
1707 .buf_prepare = buffer_prepare,
1708 .buf_queue = buffer_queue,
1709 .buf_release = buffer_release,
1710 };
1711
1712 static void radio_enable(struct bttv *btv)
1713 {
1714 /* Switch to the radio tuner */
1715 if (!btv->has_radio_tuner) {
1716 btv->has_radio_tuner = 1;
1717 bttv_call_all(btv, tuner, s_radio);
1718 btv->audio_input = TVAUDIO_INPUT_RADIO;
1719 audio_input(btv, btv->audio_input);
1720 }
1721 }
1722
1723 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
1724 {
1725 struct bttv_fh *fh = priv;
1726 struct bttv *btv = fh->btv;
1727 unsigned int i;
1728
1729 for (i = 0; i < BTTV_TVNORMS; i++)
1730 if (id & bttv_tvnorms[i].v4l2_id)
1731 break;
1732 if (i == BTTV_TVNORMS)
1733 return -EINVAL;
1734 btv->std = id;
1735 set_tvnorm(btv, i);
1736 return 0;
1737 }
1738
1739 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
1740 {
1741 struct bttv_fh *fh = priv;
1742 struct bttv *btv = fh->btv;
1743
1744 *id = btv->std;
1745 return 0;
1746 }
1747
1748 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1749 {
1750 struct bttv_fh *fh = f;
1751 struct bttv *btv = fh->btv;
1752
1753 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1754 *id &= V4L2_STD_625_50;
1755 else
1756 *id &= V4L2_STD_525_60;
1757 return 0;
1758 }
1759
1760 static int bttv_enum_input(struct file *file, void *priv,
1761 struct v4l2_input *i)
1762 {
1763 struct bttv_fh *fh = priv;
1764 struct bttv *btv = fh->btv;
1765
1766 if (i->index >= bttv_tvcards[btv->c.type].video_inputs)
1767 return -EINVAL;
1768
1769 i->type = V4L2_INPUT_TYPE_CAMERA;
1770 i->audioset = 0;
1771
1772 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1773 sprintf(i->name, "Television");
1774 i->type = V4L2_INPUT_TYPE_TUNER;
1775 i->tuner = 0;
1776 } else if (i->index == btv->svhs) {
1777 sprintf(i->name, "S-Video");
1778 } else {
1779 sprintf(i->name, "Composite%d", i->index);
1780 }
1781
1782 if (i->index == btv->input) {
1783 __u32 dstatus = btread(BT848_DSTATUS);
1784 if (0 == (dstatus & BT848_DSTATUS_PRES))
1785 i->status |= V4L2_IN_ST_NO_SIGNAL;
1786 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1787 i->status |= V4L2_IN_ST_NO_H_LOCK;
1788 }
1789
1790 i->std = BTTV_NORMS;
1791 return 0;
1792 }
1793
1794 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1795 {
1796 struct bttv_fh *fh = priv;
1797 struct bttv *btv = fh->btv;
1798
1799 *i = btv->input;
1800
1801 return 0;
1802 }
1803
1804 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1805 {
1806 struct bttv_fh *fh = priv;
1807 struct bttv *btv = fh->btv;
1808
1809 if (i >= bttv_tvcards[btv->c.type].video_inputs)
1810 return -EINVAL;
1811
1812 set_input(btv, i, btv->tvnorm);
1813 return 0;
1814 }
1815
1816 static int bttv_s_tuner(struct file *file, void *priv,
1817 const struct v4l2_tuner *t)
1818 {
1819 struct bttv_fh *fh = priv;
1820 struct bttv *btv = fh->btv;
1821
1822 if (t->index)
1823 return -EINVAL;
1824
1825 bttv_call_all(btv, tuner, s_tuner, t);
1826
1827 if (btv->audio_mode_gpio) {
1828 struct v4l2_tuner copy = *t;
1829
1830 btv->audio_mode_gpio(btv, &copy, 1);
1831 }
1832 return 0;
1833 }
1834
1835 static int bttv_g_frequency(struct file *file, void *priv,
1836 struct v4l2_frequency *f)
1837 {
1838 struct bttv_fh *fh = priv;
1839 struct bttv *btv = fh->btv;
1840
1841 if (f->tuner)
1842 return -EINVAL;
1843
1844 if (f->type == V4L2_TUNER_RADIO)
1845 radio_enable(btv);
1846 f->frequency = f->type == V4L2_TUNER_RADIO ?
1847 btv->radio_freq : btv->tv_freq;
1848
1849 return 0;
1850 }
1851
1852 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
1853 {
1854 struct v4l2_frequency new_freq = *f;
1855
1856 bttv_call_all(btv, tuner, s_frequency, f);
1857 /* s_frequency may clamp the frequency, so get the actual
1858 frequency before assigning radio/tv_freq. */
1859 bttv_call_all(btv, tuner, g_frequency, &new_freq);
1860 if (new_freq.type == V4L2_TUNER_RADIO) {
1861 radio_enable(btv);
1862 btv->radio_freq = new_freq.frequency;
1863 if (btv->has_tea575x) {
1864 btv->tea.freq = btv->radio_freq;
1865 snd_tea575x_set_freq(&btv->tea);
1866 }
1867 } else {
1868 btv->tv_freq = new_freq.frequency;
1869 }
1870 }
1871
1872 static int bttv_s_frequency(struct file *file, void *priv,
1873 const struct v4l2_frequency *f)
1874 {
1875 struct bttv_fh *fh = priv;
1876 struct bttv *btv = fh->btv;
1877
1878 if (f->tuner)
1879 return -EINVAL;
1880
1881 bttv_set_frequency(btv, f);
1882 return 0;
1883 }
1884
1885 static int bttv_log_status(struct file *file, void *f)
1886 {
1887 struct video_device *vdev = video_devdata(file);
1888 struct bttv_fh *fh = f;
1889 struct bttv *btv = fh->btv;
1890
1891 v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
1892 bttv_call_all(btv, core, log_status);
1893 return 0;
1894 }
1895
1896 #ifdef CONFIG_VIDEO_ADV_DEBUG
1897 static int bttv_g_register(struct file *file, void *f,
1898 struct v4l2_dbg_register *reg)
1899 {
1900 struct bttv_fh *fh = f;
1901 struct bttv *btv = fh->btv;
1902
1903 /* bt848 has a 12-bit register space */
1904 reg->reg &= 0xfff;
1905 reg->val = btread(reg->reg);
1906 reg->size = 1;
1907
1908 return 0;
1909 }
1910
1911 static int bttv_s_register(struct file *file, void *f,
1912 const struct v4l2_dbg_register *reg)
1913 {
1914 struct bttv_fh *fh = f;
1915 struct bttv *btv = fh->btv;
1916
1917 /* bt848 has a 12-bit register space */
1918 btwrite(reg->val, reg->reg & 0xfff);
1919
1920 return 0;
1921 }
1922 #endif
1923
1924 /* Given cropping boundaries b and the scaled width and height of a
1925 single field or frame, which must not exceed hardware limits, this
1926 function adjusts the cropping parameters c. */
1927 static void
1928 bttv_crop_adjust (struct bttv_crop * c,
1929 const struct v4l2_rect * b,
1930 __s32 width,
1931 __s32 height,
1932 enum v4l2_field field)
1933 {
1934 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
1935 __s32 max_left;
1936 __s32 max_top;
1937
1938 if (width < c->min_scaled_width) {
1939 /* Max. hor. scale factor 16:1. */
1940 c->rect.width = width * 16;
1941 } else if (width > c->max_scaled_width) {
1942 /* Min. hor. scale factor 1:1. */
1943 c->rect.width = width;
1944
1945 max_left = b->left + b->width - width;
1946 max_left = min(max_left, (__s32) MAX_HDELAY);
1947 if (c->rect.left > max_left)
1948 c->rect.left = max_left;
1949 }
1950
1951 if (height < c->min_scaled_height) {
1952 /* Max. vert. scale factor 16:1, single fields 8:1. */
1953 c->rect.height = height * 16;
1954 } else if (frame_height > c->max_scaled_height) {
1955 /* Min. vert. scale factor 1:1.
1956 Top and height count field lines times two. */
1957 c->rect.height = (frame_height + 1) & ~1;
1958
1959 max_top = b->top + b->height - c->rect.height;
1960 if (c->rect.top > max_top)
1961 c->rect.top = max_top;
1962 }
1963
1964 bttv_crop_calc_limits(c);
1965 }
1966
1967 /* Returns an error if scaling to a frame or single field with the given
1968 width and height is not possible with the current cropping parameters
1969 and width aligned according to width_mask. If adjust_size is TRUE the
1970 function may adjust the width and/or height instead, rounding width
1971 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
1972 also adjust the current cropping parameters to get closer to the
1973 desired image size. */
1974 static int
1975 limit_scaled_size_lock (struct bttv_fh * fh,
1976 __s32 * width,
1977 __s32 * height,
1978 enum v4l2_field field,
1979 unsigned int width_mask,
1980 unsigned int width_bias,
1981 int adjust_size,
1982 int adjust_crop)
1983 {
1984 struct bttv *btv = fh->btv;
1985 const struct v4l2_rect *b;
1986 struct bttv_crop *c;
1987 __s32 min_width;
1988 __s32 min_height;
1989 __s32 max_width;
1990 __s32 max_height;
1991 int rc;
1992
1993 BUG_ON((int) width_mask >= 0 ||
1994 width_bias >= (unsigned int) -width_mask);
1995
1996 /* Make sure tvnorm, vbi_end and the current cropping parameters
1997 remain consistent until we're done. */
1998
1999 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2000
2001 /* Do crop - use current, don't - use default parameters. */
2002 c = &btv->crop[!!fh->do_crop];
2003
2004 if (fh->do_crop
2005 && adjust_size
2006 && adjust_crop
2007 && !locked_btres(btv, VIDEO_RESOURCES)) {
2008 min_width = 48;
2009 min_height = 32;
2010
2011 /* We cannot scale up. When the scaled image is larger
2012 than crop.rect we adjust the crop.rect as required
2013 by the V4L2 spec, hence cropcap.bounds are our limit. */
2014 max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
2015 max_height = b->height;
2016
2017 /* We cannot capture the same line as video and VBI data.
2018 Note btv->vbi_end is really a minimum, see
2019 bttv_vbi_try_fmt(). */
2020 if (btv->vbi_end > b->top) {
2021 max_height -= btv->vbi_end - b->top;
2022 rc = -EBUSY;
2023 if (min_height > max_height)
2024 goto fail;
2025 }
2026 } else {
2027 rc = -EBUSY;
2028 if (btv->vbi_end > c->rect.top)
2029 goto fail;
2030
2031 min_width = c->min_scaled_width;
2032 min_height = c->min_scaled_height;
2033 max_width = c->max_scaled_width;
2034 max_height = c->max_scaled_height;
2035
2036 adjust_crop = 0;
2037 }
2038
2039 min_width = (min_width - width_mask - 1) & width_mask;
2040 max_width = max_width & width_mask;
2041
2042 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2043 /* Min. scale factor is 1:1. */
2044 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2045
2046 if (adjust_size) {
2047 *width = clamp(*width, min_width, max_width);
2048 *height = clamp(*height, min_height, max_height);
2049
2050 /* Round after clamping to avoid overflow. */
2051 *width = (*width + width_bias) & width_mask;
2052
2053 if (adjust_crop) {
2054 bttv_crop_adjust(c, b, *width, *height, field);
2055
2056 if (btv->vbi_end > c->rect.top) {
2057 /* Move the crop window out of the way. */
2058 c->rect.top = btv->vbi_end;
2059 }
2060 }
2061 } else {
2062 rc = -EINVAL;
2063 if (*width < min_width ||
2064 *height < min_height ||
2065 *width > max_width ||
2066 *height > max_height ||
2067 0 != (*width & ~width_mask))
2068 goto fail;
2069 }
2070
2071 rc = 0; /* success */
2072
2073 fail:
2074
2075 return rc;
2076 }
2077
2078 /* Returns an error if the given overlay window dimensions are not
2079 possible with the current cropping parameters. If adjust_size is
2080 TRUE the function may adjust the window width and/or height
2081 instead, however it always rounds the horizontal position and
2082 width as btcx_align() does. If adjust_crop is TRUE the function
2083 may also adjust the current cropping parameters to get closer
2084 to the desired window size. */
2085 static int
2086 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
2087 int adjust_size, int adjust_crop)
2088 {
2089 enum v4l2_field field;
2090 unsigned int width_mask;
2091 int rc;
2092
2093 if (win->w.width < 48)
2094 win->w.width = 48;
2095 if (win->w.height < 32)
2096 win->w.height = 32;
2097 if (win->clipcount > 2048)
2098 win->clipcount = 2048;
2099
2100 win->chromakey = 0;
2101 win->global_alpha = 0;
2102 field = win->field;
2103
2104 switch (field) {
2105 case V4L2_FIELD_TOP:
2106 case V4L2_FIELD_BOTTOM:
2107 case V4L2_FIELD_INTERLACED:
2108 break;
2109 default:
2110 field = V4L2_FIELD_ANY;
2111 break;
2112 }
2113 if (V4L2_FIELD_ANY == field) {
2114 __s32 height2;
2115
2116 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2117 field = (win->w.height > height2)
2118 ? V4L2_FIELD_INTERLACED
2119 : V4L2_FIELD_TOP;
2120 }
2121 win->field = field;
2122
2123 if (NULL == fh->ovfmt)
2124 return -EINVAL;
2125 /* 4-byte alignment. */
2126 width_mask = ~0;
2127 switch (fh->ovfmt->depth) {
2128 case 8:
2129 case 24:
2130 width_mask = ~3;
2131 break;
2132 case 16:
2133 width_mask = ~1;
2134 break;
2135 case 32:
2136 break;
2137 default:
2138 BUG();
2139 }
2140
2141 win->w.width -= win->w.left & ~width_mask;
2142 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2143
2144 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
2145 field, width_mask,
2146 /* width_bias: round down */ 0,
2147 adjust_size, adjust_crop);
2148 if (0 != rc)
2149 return rc;
2150 return 0;
2151 }
2152
2153 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
2154 struct v4l2_window *win, int fixup)
2155 {
2156 struct v4l2_clip *clips = NULL;
2157 int n,size,retval = 0;
2158
2159 if (NULL == fh->ovfmt)
2160 return -EINVAL;
2161 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2162 return -EINVAL;
2163 retval = verify_window_lock(fh, win,
2164 /* adjust_size */ fixup,
2165 /* adjust_crop */ fixup);
2166 if (0 != retval)
2167 return retval;
2168
2169 /* copy clips -- luckily v4l1 + v4l2 are binary
2170 compatible here ...*/
2171 n = win->clipcount;
2172 size = sizeof(*clips)*(n+4);
2173 clips = kmalloc(size,GFP_KERNEL);
2174 if (NULL == clips)
2175 return -ENOMEM;
2176 if (n > 0) {
2177 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2178 kfree(clips);
2179 return -EFAULT;
2180 }
2181 }
2182
2183 /* clip against screen */
2184 if (NULL != btv->fbuf.base)
2185 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2186 &win->w, clips, n);
2187 btcx_sort_clips(clips,n);
2188
2189 /* 4-byte alignments */
2190 switch (fh->ovfmt->depth) {
2191 case 8:
2192 case 24:
2193 btcx_align(&win->w, clips, n, 3);
2194 break;
2195 case 16:
2196 btcx_align(&win->w, clips, n, 1);
2197 break;
2198 case 32:
2199 /* no alignment fixups needed */
2200 break;
2201 default:
2202 BUG();
2203 }
2204
2205 kfree(fh->ov.clips);
2206 fh->ov.clips = clips;
2207 fh->ov.nclips = n;
2208
2209 fh->ov.w = win->w;
2210 fh->ov.field = win->field;
2211 fh->ov.setup_ok = 1;
2212
2213 btv->init.ov.w.width = win->w.width;
2214 btv->init.ov.w.height = win->w.height;
2215 btv->init.ov.field = win->field;
2216
2217 /* update overlay if needed */
2218 retval = 0;
2219 if (check_btres(fh, RESOURCE_OVERLAY)) {
2220 struct bttv_buffer *new;
2221
2222 new = videobuf_sg_alloc(sizeof(*new));
2223 new->crop = btv->crop[!!fh->do_crop].rect;
2224 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2225 retval = bttv_switch_overlay(btv,fh,new);
2226 }
2227 return retval;
2228 }
2229
2230 /* ----------------------------------------------------------------------- */
2231
2232 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2233 {
2234 struct videobuf_queue* q = NULL;
2235
2236 switch (fh->type) {
2237 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2238 q = &fh->cap;
2239 break;
2240 case V4L2_BUF_TYPE_VBI_CAPTURE:
2241 q = &fh->vbi;
2242 break;
2243 default:
2244 BUG();
2245 }
2246 return q;
2247 }
2248
2249 static int bttv_resource(struct bttv_fh *fh)
2250 {
2251 int res = 0;
2252
2253 switch (fh->type) {
2254 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2255 res = RESOURCE_VIDEO_STREAM;
2256 break;
2257 case V4L2_BUF_TYPE_VBI_CAPTURE:
2258 res = RESOURCE_VBI;
2259 break;
2260 default:
2261 BUG();
2262 }
2263 return res;
2264 }
2265
2266 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2267 {
2268 struct videobuf_queue *q = bttv_queue(fh);
2269 int res = bttv_resource(fh);
2270
2271 if (check_btres(fh,res))
2272 return -EBUSY;
2273 if (videobuf_queue_is_busy(q))
2274 return -EBUSY;
2275 fh->type = type;
2276 return 0;
2277 }
2278
2279 static void
2280 pix_format_set_size (struct v4l2_pix_format * f,
2281 const struct bttv_format * fmt,
2282 unsigned int width,
2283 unsigned int height)
2284 {
2285 f->width = width;
2286 f->height = height;
2287
2288 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2289 f->bytesperline = width; /* Y plane */
2290 f->sizeimage = (width * height * fmt->depth) >> 3;
2291 } else {
2292 f->bytesperline = (width * fmt->depth) >> 3;
2293 f->sizeimage = height * f->bytesperline;
2294 }
2295 }
2296
2297 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2298 struct v4l2_format *f)
2299 {
2300 struct bttv_fh *fh = priv;
2301
2302 pix_format_set_size(&f->fmt.pix, fh->fmt,
2303 fh->width, fh->height);
2304 f->fmt.pix.field = fh->cap.field;
2305 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2306 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2307
2308 return 0;
2309 }
2310
2311 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2312 struct v4l2_format *f)
2313 {
2314 struct bttv_fh *fh = priv;
2315
2316 f->fmt.win.w = fh->ov.w;
2317 f->fmt.win.field = fh->ov.field;
2318
2319 return 0;
2320 }
2321
2322 static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt,
2323 unsigned int *width_mask,
2324 unsigned int *width_bias)
2325 {
2326 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2327 *width_mask = ~15; /* width must be a multiple of 16 pixels */
2328 *width_bias = 8; /* nearest */
2329 } else {
2330 *width_mask = ~3; /* width must be a multiple of 4 pixels */
2331 *width_bias = 2; /* nearest */
2332 }
2333 }
2334
2335 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2336 struct v4l2_format *f)
2337 {
2338 const struct bttv_format *fmt;
2339 struct bttv_fh *fh = priv;
2340 struct bttv *btv = fh->btv;
2341 enum v4l2_field field;
2342 __s32 width, height;
2343 __s32 height2;
2344 unsigned int width_mask, width_bias;
2345 int rc;
2346
2347 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2348 if (NULL == fmt)
2349 return -EINVAL;
2350
2351 field = f->fmt.pix.field;
2352
2353 switch (field) {
2354 case V4L2_FIELD_TOP:
2355 case V4L2_FIELD_BOTTOM:
2356 case V4L2_FIELD_ALTERNATE:
2357 case V4L2_FIELD_INTERLACED:
2358 break;
2359 case V4L2_FIELD_SEQ_BT:
2360 case V4L2_FIELD_SEQ_TB:
2361 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
2362 field = V4L2_FIELD_SEQ_TB;
2363 break;
2364 }
2365 /* fall through */
2366 default: /* FIELD_ANY case */
2367 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2368 field = (f->fmt.pix.height > height2)
2369 ? V4L2_FIELD_INTERLACED
2370 : V4L2_FIELD_BOTTOM;
2371 break;
2372 }
2373
2374 width = f->fmt.pix.width;
2375 height = f->fmt.pix.height;
2376
2377 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
2378 rc = limit_scaled_size_lock(fh, &width, &height, field,
2379 width_mask, width_bias,
2380 /* adjust_size */ 1,
2381 /* adjust_crop */ 0);
2382 if (0 != rc)
2383 return rc;
2384
2385 /* update data for the application */
2386 f->fmt.pix.field = field;
2387 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2388 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2389
2390 return 0;
2391 }
2392
2393 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2394 struct v4l2_format *f)
2395 {
2396 struct bttv_fh *fh = priv;
2397
2398 verify_window_lock(fh, &f->fmt.win,
2399 /* adjust_size */ 1,
2400 /* adjust_crop */ 0);
2401 return 0;
2402 }
2403
2404 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2405 struct v4l2_format *f)
2406 {
2407 int retval;
2408 const struct bttv_format *fmt;
2409 struct bttv_fh *fh = priv;
2410 struct bttv *btv = fh->btv;
2411 __s32 width, height;
2412 unsigned int width_mask, width_bias;
2413 enum v4l2_field field;
2414
2415 retval = bttv_switch_type(fh, f->type);
2416 if (0 != retval)
2417 return retval;
2418
2419 retval = bttv_try_fmt_vid_cap(file, priv, f);
2420 if (0 != retval)
2421 return retval;
2422
2423 width = f->fmt.pix.width;
2424 height = f->fmt.pix.height;
2425 field = f->fmt.pix.field;
2426
2427 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2428 bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
2429 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
2430 width_mask, width_bias,
2431 /* adjust_size */ 1,
2432 /* adjust_crop */ 1);
2433 if (0 != retval)
2434 return retval;
2435
2436 f->fmt.pix.field = field;
2437
2438 /* update our state informations */
2439 fh->fmt = fmt;
2440 fh->cap.field = f->fmt.pix.field;
2441 fh->cap.last = V4L2_FIELD_NONE;
2442 fh->width = f->fmt.pix.width;
2443 fh->height = f->fmt.pix.height;
2444 btv->init.fmt = fmt;
2445 btv->init.width = f->fmt.pix.width;
2446 btv->init.height = f->fmt.pix.height;
2447
2448 return 0;
2449 }
2450
2451 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2452 struct v4l2_format *f)
2453 {
2454 struct bttv_fh *fh = priv;
2455 struct bttv *btv = fh->btv;
2456
2457 if (no_overlay > 0) {
2458 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2459 return -EINVAL;
2460 }
2461
2462 return setup_window_lock(fh, btv, &f->fmt.win, 1);
2463 }
2464
2465 static int bttv_querycap(struct file *file, void *priv,
2466 struct v4l2_capability *cap)
2467 {
2468 struct video_device *vdev = video_devdata(file);
2469 struct bttv_fh *fh = priv;
2470 struct bttv *btv = fh->btv;
2471
2472 if (0 == v4l2)
2473 return -EINVAL;
2474
2475 strscpy(cap->driver, "bttv", sizeof(cap->driver));
2476 strscpy(cap->card, btv->video_dev.name, sizeof(cap->card));
2477 snprintf(cap->bus_info, sizeof(cap->bus_info),
2478 "PCI:%s", pci_name(btv->c.pci));
2479 cap->capabilities =
2480 V4L2_CAP_VIDEO_CAPTURE |
2481 V4L2_CAP_READWRITE |
2482 V4L2_CAP_STREAMING |
2483 V4L2_CAP_DEVICE_CAPS;
2484 if (no_overlay <= 0)
2485 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2486 if (video_is_registered(&btv->vbi_dev))
2487 cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2488 if (video_is_registered(&btv->radio_dev))
2489 cap->capabilities |= V4L2_CAP_RADIO;
2490
2491 /*
2492 * No need to lock here: those vars are initialized during board
2493 * probe and remains untouched during the rest of the driver lifecycle
2494 */
2495 if (btv->has_saa6588)
2496 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
2497 if (btv->tuner_type != TUNER_ABSENT)
2498 cap->capabilities |= V4L2_CAP_TUNER;
2499 if (vdev->vfl_type == VFL_TYPE_GRABBER)
2500 cap->device_caps = cap->capabilities &
2501 (V4L2_CAP_VIDEO_CAPTURE |
2502 V4L2_CAP_READWRITE |
2503 V4L2_CAP_STREAMING |
2504 V4L2_CAP_VIDEO_OVERLAY |
2505 V4L2_CAP_TUNER);
2506 else if (vdev->vfl_type == VFL_TYPE_VBI)
2507 cap->device_caps = cap->capabilities &
2508 (V4L2_CAP_VBI_CAPTURE |
2509 V4L2_CAP_READWRITE |
2510 V4L2_CAP_STREAMING |
2511 V4L2_CAP_TUNER);
2512 else {
2513 cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2514 if (btv->has_saa6588)
2515 cap->device_caps |= V4L2_CAP_READWRITE |
2516 V4L2_CAP_RDS_CAPTURE;
2517 if (btv->has_tea575x)
2518 cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
2519 }
2520 return 0;
2521 }
2522
2523 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2524 {
2525 int index = -1, i;
2526
2527 for (i = 0; i < FORMATS; i++) {
2528 if (formats[i].fourcc != -1)
2529 index++;
2530 if ((unsigned int)index == f->index)
2531 break;
2532 }
2533 if (FORMATS == i)
2534 return -EINVAL;
2535
2536 f->pixelformat = formats[i].fourcc;
2537 strscpy(f->description, formats[i].name, sizeof(f->description));
2538
2539 return i;
2540 }
2541
2542 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2543 struct v4l2_fmtdesc *f)
2544 {
2545 int rc = bttv_enum_fmt_cap_ovr(f);
2546
2547 if (rc < 0)
2548 return rc;
2549
2550 return 0;
2551 }
2552
2553 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2554 struct v4l2_fmtdesc *f)
2555 {
2556 int rc;
2557
2558 if (no_overlay > 0) {
2559 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2560 return -EINVAL;
2561 }
2562
2563 rc = bttv_enum_fmt_cap_ovr(f);
2564
2565 if (rc < 0)
2566 return rc;
2567
2568 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2569 return -EINVAL;
2570
2571 return 0;
2572 }
2573
2574 static int bttv_g_fbuf(struct file *file, void *f,
2575 struct v4l2_framebuffer *fb)
2576 {
2577 struct bttv_fh *fh = f;
2578 struct bttv *btv = fh->btv;
2579
2580 *fb = btv->fbuf;
2581 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2582 fb->flags = V4L2_FBUF_FLAG_PRIMARY;
2583 if (fh->ovfmt)
2584 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2585 return 0;
2586 }
2587
2588 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2589 {
2590 struct bttv_fh *fh = f;
2591 struct bttv *btv = fh->btv;
2592 struct bttv_buffer *new;
2593 int retval = 0;
2594
2595 if (on) {
2596 /* verify args */
2597 if (unlikely(!btv->fbuf.base)) {
2598 return -EINVAL;
2599 }
2600 if (unlikely(!fh->ov.setup_ok)) {
2601 dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
2602 retval = -EINVAL;
2603 }
2604 if (retval)
2605 return retval;
2606 }
2607
2608 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
2609 return -EBUSY;
2610
2611 if (on) {
2612 fh->ov.tvnorm = btv->tvnorm;
2613 new = videobuf_sg_alloc(sizeof(*new));
2614 new->crop = btv->crop[!!fh->do_crop].rect;
2615 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2616 } else {
2617 new = NULL;
2618 }
2619
2620 /* switch over */
2621 retval = bttv_switch_overlay(btv, fh, new);
2622 return retval;
2623 }
2624
2625 static int bttv_s_fbuf(struct file *file, void *f,
2626 const struct v4l2_framebuffer *fb)
2627 {
2628 struct bttv_fh *fh = f;
2629 struct bttv *btv = fh->btv;
2630 const struct bttv_format *fmt;
2631 int retval;
2632
2633 if (!capable(CAP_SYS_ADMIN) &&
2634 !capable(CAP_SYS_RAWIO))
2635 return -EPERM;
2636
2637 /* check args */
2638 fmt = format_by_fourcc(fb->fmt.pixelformat);
2639 if (NULL == fmt)
2640 return -EINVAL;
2641 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2642 return -EINVAL;
2643
2644 retval = -EINVAL;
2645 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2646 __s32 width = fb->fmt.width;
2647 __s32 height = fb->fmt.height;
2648
2649 retval = limit_scaled_size_lock(fh, &width, &height,
2650 V4L2_FIELD_INTERLACED,
2651 /* width_mask */ ~3,
2652 /* width_bias */ 2,
2653 /* adjust_size */ 0,
2654 /* adjust_crop */ 0);
2655 if (0 != retval)
2656 return retval;
2657 }
2658
2659 /* ok, accept it */
2660 btv->fbuf.base = fb->base;
2661 btv->fbuf.fmt.width = fb->fmt.width;
2662 btv->fbuf.fmt.height = fb->fmt.height;
2663 if (0 != fb->fmt.bytesperline)
2664 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2665 else
2666 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2667
2668 retval = 0;
2669 fh->ovfmt = fmt;
2670 btv->init.ovfmt = fmt;
2671 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2672 fh->ov.w.left = 0;
2673 fh->ov.w.top = 0;
2674 fh->ov.w.width = fb->fmt.width;
2675 fh->ov.w.height = fb->fmt.height;
2676 btv->init.ov.w.width = fb->fmt.width;
2677 btv->init.ov.w.height = fb->fmt.height;
2678
2679 kfree(fh->ov.clips);
2680 fh->ov.clips = NULL;
2681 fh->ov.nclips = 0;
2682
2683 if (check_btres(fh, RESOURCE_OVERLAY)) {
2684 struct bttv_buffer *new;
2685
2686 new = videobuf_sg_alloc(sizeof(*new));
2687 new->crop = btv->crop[!!fh->do_crop].rect;
2688 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2689 retval = bttv_switch_overlay(btv, fh, new);
2690 }
2691 }
2692 return retval;
2693 }
2694
2695 static int bttv_reqbufs(struct file *file, void *priv,
2696 struct v4l2_requestbuffers *p)
2697 {
2698 struct bttv_fh *fh = priv;
2699 return videobuf_reqbufs(bttv_queue(fh), p);
2700 }
2701
2702 static int bttv_querybuf(struct file *file, void *priv,
2703 struct v4l2_buffer *b)
2704 {
2705 struct bttv_fh *fh = priv;
2706 return videobuf_querybuf(bttv_queue(fh), b);
2707 }
2708
2709 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2710 {
2711 struct bttv_fh *fh = priv;
2712 struct bttv *btv = fh->btv;
2713 int res = bttv_resource(fh);
2714
2715 if (!check_alloc_btres_lock(btv, fh, res))
2716 return -EBUSY;
2717
2718 return videobuf_qbuf(bttv_queue(fh), b);
2719 }
2720
2721 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2722 {
2723 struct bttv_fh *fh = priv;
2724 return videobuf_dqbuf(bttv_queue(fh), b,
2725 file->f_flags & O_NONBLOCK);
2726 }
2727
2728 static int bttv_streamon(struct file *file, void *priv,
2729 enum v4l2_buf_type type)
2730 {
2731 struct bttv_fh *fh = priv;
2732 struct bttv *btv = fh->btv;
2733 int res = bttv_resource(fh);
2734
2735 if (!check_alloc_btres_lock(btv, fh, res))
2736 return -EBUSY;
2737 return videobuf_streamon(bttv_queue(fh));
2738 }
2739
2740
2741 static int bttv_streamoff(struct file *file, void *priv,
2742 enum v4l2_buf_type type)
2743 {
2744 struct bttv_fh *fh = priv;
2745 struct bttv *btv = fh->btv;
2746 int retval;
2747 int res = bttv_resource(fh);
2748
2749
2750 retval = videobuf_streamoff(bttv_queue(fh));
2751 if (retval < 0)
2752 return retval;
2753 free_btres_lock(btv, fh, res);
2754 return 0;
2755 }
2756
2757 static int bttv_g_parm(struct file *file, void *f,
2758 struct v4l2_streamparm *parm)
2759 {
2760 struct bttv_fh *fh = f;
2761 struct bttv *btv = fh->btv;
2762
2763 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2764 return -EINVAL;
2765 parm->parm.capture.readbuffers = gbuffers;
2766 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
2767 &parm->parm.capture.timeperframe);
2768
2769 return 0;
2770 }
2771
2772 static int bttv_g_tuner(struct file *file, void *priv,
2773 struct v4l2_tuner *t)
2774 {
2775 struct bttv_fh *fh = priv;
2776 struct bttv *btv = fh->btv;
2777
2778 if (0 != t->index)
2779 return -EINVAL;
2780
2781 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2782 t->capability = V4L2_TUNER_CAP_NORM;
2783 bttv_call_all(btv, tuner, g_tuner, t);
2784 strscpy(t->name, "Television", sizeof(t->name));
2785 t->type = V4L2_TUNER_ANALOG_TV;
2786 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2787 t->signal = 0xffff;
2788
2789 if (btv->audio_mode_gpio)
2790 btv->audio_mode_gpio(btv, t, 0);
2791
2792 return 0;
2793 }
2794
2795 static int bttv_cropcap(struct file *file, void *priv,
2796 struct v4l2_cropcap *cap)
2797 {
2798 struct bttv_fh *fh = priv;
2799 struct bttv *btv = fh->btv;
2800
2801 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2802 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2803 return -EINVAL;
2804
2805 /* defrect and bounds are set via g_selection */
2806 cap->pixelaspect = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect;
2807
2808 return 0;
2809 }
2810
2811 static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
2812 {
2813 struct bttv_fh *fh = f;
2814 struct bttv *btv = fh->btv;
2815
2816 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2817 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2818 return -EINVAL;
2819
2820 switch (sel->target) {
2821 case V4L2_SEL_TGT_CROP:
2822 /*
2823 * No fh->do_crop = 1; because btv->crop[1] may be
2824 * inconsistent with fh->width or fh->height and apps
2825 * do not expect a change here.
2826 */
2827 sel->r = btv->crop[!!fh->do_crop].rect;
2828 break;
2829 case V4L2_SEL_TGT_CROP_DEFAULT:
2830 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect;
2831 break;
2832 case V4L2_SEL_TGT_CROP_BOUNDS:
2833 sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2834 break;
2835 default:
2836 return -EINVAL;
2837 }
2838
2839 return 0;
2840 }
2841
2842 static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
2843 {
2844 struct bttv_fh *fh = f;
2845 struct bttv *btv = fh->btv;
2846 const struct v4l2_rect *b;
2847 int retval;
2848 struct bttv_crop c;
2849 __s32 b_left;
2850 __s32 b_top;
2851 __s32 b_right;
2852 __s32 b_bottom;
2853
2854 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2855 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2856 return -EINVAL;
2857
2858 if (sel->target != V4L2_SEL_TGT_CROP)
2859 return -EINVAL;
2860
2861 /* Make sure tvnorm, vbi_end and the current cropping
2862 parameters remain consistent until we're done. Note
2863 read() may change vbi_end in check_alloc_btres_lock(). */
2864 retval = -EBUSY;
2865
2866 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
2867 return retval;
2868 }
2869
2870 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2871
2872 b_left = b->left;
2873 b_right = b_left + b->width;
2874 b_bottom = b->top + b->height;
2875
2876 b_top = max(b->top, btv->vbi_end);
2877 if (b_top + 32 >= b_bottom) {
2878 return retval;
2879 }
2880
2881 /* Min. scaled size 48 x 32. */
2882 c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48);
2883 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
2884
2885 c.rect.width = clamp_t(s32, sel->r.width,
2886 48, b_right - c.rect.left);
2887
2888 c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32);
2889 /* Top and height must be a multiple of two. */
2890 c.rect.top = (c.rect.top + 1) & ~1;
2891
2892 c.rect.height = clamp_t(s32, sel->r.height,
2893 32, b_bottom - c.rect.top);
2894 c.rect.height = (c.rect.height + 1) & ~1;
2895
2896 bttv_crop_calc_limits(&c);
2897
2898 sel->r = c.rect;
2899
2900 btv->crop[1] = c;
2901
2902 fh->do_crop = 1;
2903
2904 if (fh->width < c.min_scaled_width) {
2905 fh->width = c.min_scaled_width;
2906 btv->init.width = c.min_scaled_width;
2907 } else if (fh->width > c.max_scaled_width) {
2908 fh->width = c.max_scaled_width;
2909 btv->init.width = c.max_scaled_width;
2910 }
2911
2912 if (fh->height < c.min_scaled_height) {
2913 fh->height = c.min_scaled_height;
2914 btv->init.height = c.min_scaled_height;
2915 } else if (fh->height > c.max_scaled_height) {
2916 fh->height = c.max_scaled_height;
2917 btv->init.height = c.max_scaled_height;
2918 }
2919
2920 return 0;
2921 }
2922
2923 static ssize_t bttv_read(struct file *file, char __user *data,
2924 size_t count, loff_t *ppos)
2925 {
2926 struct bttv_fh *fh = file->private_data;
2927 int retval = 0;
2928
2929 if (fh->btv->errors)
2930 bttv_reinit_bt848(fh->btv);
2931 dprintk("%d: read count=%d type=%s\n",
2932 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
2933
2934 switch (fh->type) {
2935 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2936 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
2937 /* VIDEO_READ in use by another fh,
2938 or VIDEO_STREAM by any fh. */
2939 return -EBUSY;
2940 }
2941 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2942 file->f_flags & O_NONBLOCK);
2943 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
2944 break;
2945 case V4L2_BUF_TYPE_VBI_CAPTURE:
2946 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2947 return -EBUSY;
2948 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
2949 file->f_flags & O_NONBLOCK);
2950 break;
2951 default:
2952 BUG();
2953 }
2954 return retval;
2955 }
2956
2957 static __poll_t bttv_poll(struct file *file, poll_table *wait)
2958 {
2959 struct bttv_fh *fh = file->private_data;
2960 struct bttv_buffer *buf;
2961 enum v4l2_field field;
2962 __poll_t rc = 0;
2963 __poll_t req_events = poll_requested_events(wait);
2964
2965 if (v4l2_event_pending(&fh->fh))
2966 rc = EPOLLPRI;
2967 else if (req_events & EPOLLPRI)
2968 poll_wait(file, &fh->fh.wait, wait);
2969
2970 if (!(req_events & (EPOLLIN | EPOLLRDNORM)))
2971 return rc;
2972
2973 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2974 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2975 return rc | EPOLLERR;
2976 return rc | videobuf_poll_stream(file, &fh->vbi, wait);
2977 }
2978
2979 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
2980 /* streaming capture */
2981 if (list_empty(&fh->cap.stream))
2982 return rc | EPOLLERR;
2983 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
2984 } else {
2985 /* read() capture */
2986 if (NULL == fh->cap.read_buf) {
2987 /* need to capture a new frame */
2988 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
2989 return rc | EPOLLERR;
2990 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
2991 if (NULL == fh->cap.read_buf)
2992 return rc | EPOLLERR;
2993 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
2994 field = videobuf_next_field(&fh->cap);
2995 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
2996 kfree (fh->cap.read_buf);
2997 fh->cap.read_buf = NULL;
2998 return rc | EPOLLERR;
2999 }
3000 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3001 fh->cap.read_off = 0;
3002 }
3003 buf = (struct bttv_buffer*)fh->cap.read_buf;
3004 }
3005
3006 poll_wait(file, &buf->vb.done, wait);
3007 if (buf->vb.state == VIDEOBUF_DONE ||
3008 buf->vb.state == VIDEOBUF_ERROR)
3009 rc = rc | EPOLLIN|EPOLLRDNORM;
3010 return rc;
3011 }
3012
3013 static int bttv_open(struct file *file)
3014 {
3015 struct video_device *vdev = video_devdata(file);
3016 struct bttv *btv = video_drvdata(file);
3017 struct bttv_fh *fh;
3018 enum v4l2_buf_type type = 0;
3019
3020 dprintk("open dev=%s\n", video_device_node_name(vdev));
3021
3022 if (vdev->vfl_type == VFL_TYPE_GRABBER) {
3023 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3024 } else if (vdev->vfl_type == VFL_TYPE_VBI) {
3025 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3026 } else {
3027 WARN_ON(1);
3028 return -ENODEV;
3029 }
3030
3031 dprintk("%d: open called (type=%s)\n",
3032 btv->c.nr, v4l2_type_names[type]);
3033
3034 /* allocate per filehandle data */
3035 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3036 if (unlikely(!fh))
3037 return -ENOMEM;
3038 btv->users++;
3039 file->private_data = fh;
3040
3041 *fh = btv->init;
3042 v4l2_fh_init(&fh->fh, vdev);
3043
3044 fh->type = type;
3045 fh->ov.setup_ok = 0;
3046
3047 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3048 &btv->c.pci->dev, &btv->s_lock,
3049 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3050 V4L2_FIELD_INTERLACED,
3051 sizeof(struct bttv_buffer),
3052 fh, &btv->lock);
3053 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3054 &btv->c.pci->dev, &btv->s_lock,
3055 V4L2_BUF_TYPE_VBI_CAPTURE,
3056 V4L2_FIELD_SEQ_TB,
3057 sizeof(struct bttv_buffer),
3058 fh, &btv->lock);
3059 set_tvnorm(btv,btv->tvnorm);
3060 set_input(btv, btv->input, btv->tvnorm);
3061 audio_mute(btv, btv->mute);
3062
3063 /* The V4L2 spec requires one global set of cropping parameters
3064 which only change on request. These are stored in btv->crop[1].
3065 However for compatibility with V4L apps and cropping unaware
3066 V4L2 apps we now reset the cropping parameters as seen through
3067 this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks
3068 will use btv->crop[0], the default cropping parameters for the
3069 current video standard, and VIDIOC_S_FMT will not implicitely
3070 change the cropping parameters until VIDIOC_S_SELECTION has been
3071 called. */
3072 fh->do_crop = !reset_crop; /* module parameter */
3073
3074 /* Likewise there should be one global set of VBI capture
3075 parameters, but for compatibility with V4L apps and earlier
3076 driver versions each fh has its own parameters. */
3077 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3078
3079 bttv_field_count(btv);
3080 v4l2_fh_add(&fh->fh);
3081 return 0;
3082 }
3083
3084 static int bttv_release(struct file *file)
3085 {
3086 struct bttv_fh *fh = file->private_data;
3087 struct bttv *btv = fh->btv;
3088
3089 /* turn off overlay */
3090 if (check_btres(fh, RESOURCE_OVERLAY))
3091 bttv_switch_overlay(btv,fh,NULL);
3092
3093 /* stop video capture */
3094 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3095 videobuf_streamoff(&fh->cap);
3096 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
3097 }
3098 if (fh->cap.read_buf) {
3099 buffer_release(&fh->cap,fh->cap.read_buf);
3100 kfree(fh->cap.read_buf);
3101 }
3102 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3103 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
3104 }
3105
3106 /* stop vbi capture */
3107 if (check_btres(fh, RESOURCE_VBI)) {
3108 videobuf_stop(&fh->vbi);
3109 free_btres_lock(btv,fh,RESOURCE_VBI);
3110 }
3111
3112 /* free stuff */
3113
3114 videobuf_mmap_free(&fh->cap);
3115 videobuf_mmap_free(&fh->vbi);
3116 file->private_data = NULL;
3117
3118 btv->users--;
3119 bttv_field_count(btv);
3120
3121 if (!btv->users)
3122 audio_mute(btv, btv->mute);
3123
3124 v4l2_fh_del(&fh->fh);
3125 v4l2_fh_exit(&fh->fh);
3126 kfree(fh);
3127 return 0;
3128 }
3129
3130 static int
3131 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3132 {
3133 struct bttv_fh *fh = file->private_data;
3134
3135 dprintk("%d: mmap type=%s 0x%lx+%ld\n",
3136 fh->btv->c.nr, v4l2_type_names[fh->type],
3137 vma->vm_start, vma->vm_end - vma->vm_start);
3138 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3139 }
3140
3141 static const struct v4l2_file_operations bttv_fops =
3142 {
3143 .owner = THIS_MODULE,
3144 .open = bttv_open,
3145 .release = bttv_release,
3146 .unlocked_ioctl = video_ioctl2,
3147 .read = bttv_read,
3148 .mmap = bttv_mmap,
3149 .poll = bttv_poll,
3150 };
3151
3152 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3153 .vidioc_querycap = bttv_querycap,
3154 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3155 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3156 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3157 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3158 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3159 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3160 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3161 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3162 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3163 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3164 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3165 .vidioc_cropcap = bttv_cropcap,
3166 .vidioc_reqbufs = bttv_reqbufs,
3167 .vidioc_querybuf = bttv_querybuf,
3168 .vidioc_qbuf = bttv_qbuf,
3169 .vidioc_dqbuf = bttv_dqbuf,
3170 .vidioc_s_std = bttv_s_std,
3171 .vidioc_g_std = bttv_g_std,
3172 .vidioc_enum_input = bttv_enum_input,
3173 .vidioc_g_input = bttv_g_input,
3174 .vidioc_s_input = bttv_s_input,
3175 .vidioc_streamon = bttv_streamon,
3176 .vidioc_streamoff = bttv_streamoff,
3177 .vidioc_g_tuner = bttv_g_tuner,
3178 .vidioc_s_tuner = bttv_s_tuner,
3179 .vidioc_g_selection = bttv_g_selection,
3180 .vidioc_s_selection = bttv_s_selection,
3181 .vidioc_g_fbuf = bttv_g_fbuf,
3182 .vidioc_s_fbuf = bttv_s_fbuf,
3183 .vidioc_overlay = bttv_overlay,
3184 .vidioc_g_parm = bttv_g_parm,
3185 .vidioc_g_frequency = bttv_g_frequency,
3186 .vidioc_s_frequency = bttv_s_frequency,
3187 .vidioc_log_status = bttv_log_status,
3188 .vidioc_querystd = bttv_querystd,
3189 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3190 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3191 #ifdef CONFIG_VIDEO_ADV_DEBUG
3192 .vidioc_g_register = bttv_g_register,
3193 .vidioc_s_register = bttv_s_register,
3194 #endif
3195 };
3196
3197 static struct video_device bttv_video_template = {
3198 .fops = &bttv_fops,
3199 .ioctl_ops = &bttv_ioctl_ops,
3200 .tvnorms = BTTV_NORMS,
3201 };
3202
3203 /* ----------------------------------------------------------------------- */
3204 /* radio interface */
3205
3206 static int radio_open(struct file *file)
3207 {
3208 struct video_device *vdev = video_devdata(file);
3209 struct bttv *btv = video_drvdata(file);
3210 struct bttv_fh *fh;
3211
3212 dprintk("open dev=%s\n", video_device_node_name(vdev));
3213
3214 dprintk("%d: open called (radio)\n", btv->c.nr);
3215
3216 /* allocate per filehandle data */
3217 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3218 if (unlikely(!fh))
3219 return -ENOMEM;
3220 file->private_data = fh;
3221 *fh = btv->init;
3222 v4l2_fh_init(&fh->fh, vdev);
3223
3224 btv->radio_user++;
3225 audio_mute(btv, btv->mute);
3226
3227 v4l2_fh_add(&fh->fh);
3228
3229 return 0;
3230 }
3231
3232 static int radio_release(struct file *file)
3233 {
3234 struct bttv_fh *fh = file->private_data;
3235 struct bttv *btv = fh->btv;
3236 struct saa6588_command cmd;
3237
3238 file->private_data = NULL;
3239 v4l2_fh_del(&fh->fh);
3240 v4l2_fh_exit(&fh->fh);
3241 kfree(fh);
3242
3243 btv->radio_user--;
3244
3245 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
3246
3247 if (btv->radio_user == 0)
3248 btv->has_radio_tuner = 0;
3249 return 0;
3250 }
3251
3252 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3253 {
3254 struct bttv_fh *fh = priv;
3255 struct bttv *btv = fh->btv;
3256
3257 if (0 != t->index)
3258 return -EINVAL;
3259 strscpy(t->name, "Radio", sizeof(t->name));
3260 t->type = V4L2_TUNER_RADIO;
3261 radio_enable(btv);
3262
3263 bttv_call_all(btv, tuner, g_tuner, t);
3264
3265 if (btv->audio_mode_gpio)
3266 btv->audio_mode_gpio(btv, t, 0);
3267
3268 if (btv->has_tea575x)
3269 return snd_tea575x_g_tuner(&btv->tea, t);
3270
3271 return 0;
3272 }
3273
3274 static int radio_s_tuner(struct file *file, void *priv,
3275 const struct v4l2_tuner *t)
3276 {
3277 struct bttv_fh *fh = priv;
3278 struct bttv *btv = fh->btv;
3279
3280 if (0 != t->index)
3281 return -EINVAL;
3282
3283 radio_enable(btv);
3284 bttv_call_all(btv, tuner, s_tuner, t);
3285 return 0;
3286 }
3287
3288 static int radio_s_hw_freq_seek(struct file *file, void *priv,
3289 const struct v4l2_hw_freq_seek *a)
3290 {
3291 struct bttv_fh *fh = priv;
3292 struct bttv *btv = fh->btv;
3293
3294 if (btv->has_tea575x)
3295 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
3296
3297 return -ENOTTY;
3298 }
3299
3300 static int radio_enum_freq_bands(struct file *file, void *priv,
3301 struct v4l2_frequency_band *band)
3302 {
3303 struct bttv_fh *fh = priv;
3304 struct bttv *btv = fh->btv;
3305
3306 if (btv->has_tea575x)
3307 return snd_tea575x_enum_freq_bands(&btv->tea, band);
3308
3309 return -ENOTTY;
3310 }
3311
3312 static ssize_t radio_read(struct file *file, char __user *data,
3313 size_t count, loff_t *ppos)
3314 {
3315 struct bttv_fh *fh = file->private_data;
3316 struct bttv *btv = fh->btv;
3317 struct saa6588_command cmd;
3318
3319 cmd.block_count = count / 3;
3320 cmd.nonblocking = file->f_flags & O_NONBLOCK;
3321 cmd.buffer = data;
3322 cmd.instance = file;
3323 cmd.result = -ENODEV;
3324 radio_enable(btv);
3325
3326 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
3327
3328 return cmd.result;
3329 }
3330
3331 static __poll_t radio_poll(struct file *file, poll_table *wait)
3332 {
3333 struct bttv_fh *fh = file->private_data;
3334 struct bttv *btv = fh->btv;
3335 __poll_t req_events = poll_requested_events(wait);
3336 struct saa6588_command cmd;
3337 __poll_t res = 0;
3338
3339 if (v4l2_event_pending(&fh->fh))
3340 res = EPOLLPRI;
3341 else if (req_events & EPOLLPRI)
3342 poll_wait(file, &fh->fh.wait, wait);
3343 radio_enable(btv);
3344 cmd.instance = file;
3345 cmd.event_list = wait;
3346 cmd.poll_mask = res;
3347 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
3348
3349 return cmd.poll_mask;
3350 }
3351
3352 static const struct v4l2_file_operations radio_fops =
3353 {
3354 .owner = THIS_MODULE,
3355 .open = radio_open,
3356 .read = radio_read,
3357 .release = radio_release,
3358 .unlocked_ioctl = video_ioctl2,
3359 .poll = radio_poll,
3360 };
3361
3362 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3363 .vidioc_querycap = bttv_querycap,
3364 .vidioc_log_status = bttv_log_status,
3365 .vidioc_g_tuner = radio_g_tuner,
3366 .vidioc_s_tuner = radio_s_tuner,
3367 .vidioc_g_frequency = bttv_g_frequency,
3368 .vidioc_s_frequency = bttv_s_frequency,
3369 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
3370 .vidioc_enum_freq_bands = radio_enum_freq_bands,
3371 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3372 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3373 };
3374
3375 static struct video_device radio_template = {
3376 .fops = &radio_fops,
3377 .ioctl_ops = &radio_ioctl_ops,
3378 };
3379
3380 /* ----------------------------------------------------------------------- */
3381 /* some debug code */
3382
3383 static int bttv_risc_decode(u32 risc)
3384 {
3385 static char *instr[16] = {
3386 [ BT848_RISC_WRITE >> 28 ] = "write",
3387 [ BT848_RISC_SKIP >> 28 ] = "skip",
3388 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3389 [ BT848_RISC_JUMP >> 28 ] = "jump",
3390 [ BT848_RISC_SYNC >> 28 ] = "sync",
3391 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3392 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3393 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3394 };
3395 static int incr[16] = {
3396 [ BT848_RISC_WRITE >> 28 ] = 2,
3397 [ BT848_RISC_JUMP >> 28 ] = 2,
3398 [ BT848_RISC_SYNC >> 28 ] = 2,
3399 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3400 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3401 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3402 };
3403 static char *bits[] = {
3404 "be0", "be1", "be2", "be3/resync",
3405 "set0", "set1", "set2", "set3",
3406 "clr0", "clr1", "clr2", "clr3",
3407 "irq", "res", "eol", "sol",
3408 };
3409 int i;
3410
3411 pr_cont("0x%08x [ %s", risc,
3412 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3413 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3414 if (risc & (1 << (i + 12)))
3415 pr_cont(" %s", bits[i]);
3416 pr_cont(" count=%d ]\n", risc & 0xfff);
3417 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3418 }
3419
3420 static void bttv_risc_disasm(struct bttv *btv,
3421 struct btcx_riscmem *risc)
3422 {
3423 unsigned int i,j,n;
3424
3425 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
3426 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
3427 for (i = 0; i < (risc->size >> 2); i += n) {
3428 pr_info("%s: 0x%lx: ",
3429 btv->c.v4l2_dev.name,
3430 (unsigned long)(risc->dma + (i<<2)));
3431 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3432 for (j = 1; j < n; j++)
3433 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3434 btv->c.v4l2_dev.name,
3435 (unsigned long)(risc->dma + ((i+j)<<2)),
3436 risc->cpu[i+j], j);
3437 if (0 == risc->cpu[i])
3438 break;
3439 }
3440 }
3441
3442 static void bttv_print_riscaddr(struct bttv *btv)
3443 {
3444 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
3445 pr_info(" vbi : o=%08llx e=%08llx\n",
3446 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3447 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3448 pr_info(" cap : o=%08llx e=%08llx\n",
3449 btv->curr.top
3450 ? (unsigned long long)btv->curr.top->top.dma : 0,
3451 btv->curr.bottom
3452 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3453 pr_info(" scr : o=%08llx e=%08llx\n",
3454 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3455 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3456 bttv_risc_disasm(btv, &btv->main);
3457 }
3458
3459 /* ----------------------------------------------------------------------- */
3460 /* irq handler */
3461
3462 static char *irq_name[] = {
3463 "FMTCHG", // format change detected (525 vs. 625)
3464 "VSYNC", // vertical sync (new field)
3465 "HSYNC", // horizontal sync
3466 "OFLOW", // chroma/luma AGC overflow
3467 "HLOCK", // horizontal lock changed
3468 "VPRES", // video presence changed
3469 "6", "7",
3470 "I2CDONE", // hw irc operation finished
3471 "GPINT", // gpio port triggered irq
3472 "10",
3473 "RISCI", // risc instruction triggered irq
3474 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3475 "FTRGT", // pixel data fifo overrun
3476 "FDSR", // fifo data stream resyncronisation
3477 "PPERR", // parity error (data transfer)
3478 "RIPERR", // parity error (read risc instructions)
3479 "PABORT", // pci abort
3480 "OCERR", // risc instruction error
3481 "SCERR", // syncronisation error
3482 };
3483
3484 static void bttv_print_irqbits(u32 print, u32 mark)
3485 {
3486 unsigned int i;
3487
3488 pr_cont("bits:");
3489 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3490 if (print & (1 << i))
3491 pr_cont(" %s", irq_name[i]);
3492 if (mark & (1 << i))
3493 pr_cont("*");
3494 }
3495 }
3496
3497 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3498 {
3499 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3500 btv->c.nr,
3501 (unsigned long)btv->main.dma,
3502 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3503 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3504 (unsigned long)rc);
3505
3506 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3507 pr_notice("%d: Oh, there (temporarily?) is no input signal. Ok, then this is harmless, don't worry ;)\n",
3508 btv->c.nr);
3509 return;
3510 }
3511 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
3512 btv->c.nr);
3513 pr_notice("%d: Lets try to catch the culprit red-handed ...\n",
3514 btv->c.nr);
3515 dump_stack();
3516 }
3517
3518 static int
3519 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3520 {
3521 struct bttv_buffer *item;
3522
3523 memset(set,0,sizeof(*set));
3524
3525 /* capture request ? */
3526 if (!list_empty(&btv->capture)) {
3527 set->frame_irq = 1;
3528 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3529 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3530 set->top = item;
3531 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3532 set->bottom = item;
3533
3534 /* capture request for other field ? */
3535 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3536 (item->vb.queue.next != &btv->capture)) {
3537 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3538 /* Mike Isely <isely@pobox.com> - Only check
3539 * and set up the bottom field in the logic
3540 * below. Don't ever do the top field. This
3541 * of course means that if we set up the
3542 * bottom field in the above code that we'll
3543 * actually skip a field. But that's OK.
3544 * Having processed only a single buffer this
3545 * time, then the next time around the first
3546 * available buffer should be for a top field.
3547 * That will then cause us here to set up a
3548 * top then a bottom field in the normal way.
3549 * The alternative to this understanding is
3550 * that we set up the second available buffer
3551 * as a top field, but that's out of order
3552 * since this driver always processes the top
3553 * field first - the effect will be the two
3554 * buffers being returned in the wrong order,
3555 * with the second buffer also being delayed
3556 * by one field time (owing to the fifo nature
3557 * of videobuf). Worse still, we'll be stuck
3558 * doing fields out of order now every time
3559 * until something else causes a field to be
3560 * dropped. By effectively forcing a field to
3561 * drop this way then we always get back into
3562 * sync within a single frame time. (Out of
3563 * order fields can screw up deinterlacing
3564 * algorithms.) */
3565 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3566 if (NULL == set->bottom &&
3567 V4L2_FIELD_BOTTOM == item->vb.field) {
3568 set->bottom = item;
3569 }
3570 if (NULL != set->top && NULL != set->bottom)
3571 set->top_irq = 2;
3572 }
3573 }
3574 }
3575
3576 /* screen overlay ? */
3577 if (NULL != btv->screen) {
3578 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3579 if (NULL == set->top && NULL == set->bottom) {
3580 set->top = btv->screen;
3581 set->bottom = btv->screen;
3582 }
3583 } else {
3584 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3585 NULL == set->top) {
3586 set->top = btv->screen;
3587 }
3588 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3589 NULL == set->bottom) {
3590 set->bottom = btv->screen;
3591 }
3592 }
3593 }
3594
3595 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3596 btv->c.nr, set->top, set->bottom,
3597 btv->screen, set->frame_irq, set->top_irq);
3598 return 0;
3599 }
3600
3601 static void
3602 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3603 struct bttv_buffer_set *curr, unsigned int state)
3604 {
3605 struct timeval ts;
3606
3607 v4l2_get_timestamp(&ts);
3608
3609 if (wakeup->top == wakeup->bottom) {
3610 if (NULL != wakeup->top && curr->top != wakeup->top) {
3611 if (irq_debug > 1)
3612 pr_debug("%d: wakeup: both=%p\n",
3613 btv->c.nr, wakeup->top);
3614 wakeup->top->vb.ts = ts;
3615 wakeup->top->vb.field_count = btv->field_count;
3616 wakeup->top->vb.state = state;
3617 wake_up(&wakeup->top->vb.done);
3618 }
3619 } else {
3620 if (NULL != wakeup->top && curr->top != wakeup->top) {
3621 if (irq_debug > 1)
3622 pr_debug("%d: wakeup: top=%p\n",
3623 btv->c.nr, wakeup->top);
3624 wakeup->top->vb.ts = ts;
3625 wakeup->top->vb.field_count = btv->field_count;
3626 wakeup->top->vb.state = state;
3627 wake_up(&wakeup->top->vb.done);
3628 }
3629 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3630 if (irq_debug > 1)
3631 pr_debug("%d: wakeup: bottom=%p\n",
3632 btv->c.nr, wakeup->bottom);
3633 wakeup->bottom->vb.ts = ts;
3634 wakeup->bottom->vb.field_count = btv->field_count;
3635 wakeup->bottom->vb.state = state;
3636 wake_up(&wakeup->bottom->vb.done);
3637 }
3638 }
3639 }
3640
3641 static void
3642 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3643 unsigned int state)
3644 {
3645 if (NULL == wakeup)
3646 return;
3647
3648 v4l2_get_timestamp(&wakeup->vb.ts);
3649 wakeup->vb.field_count = btv->field_count;
3650 wakeup->vb.state = state;
3651 wake_up(&wakeup->vb.done);
3652 }
3653
3654 static void bttv_irq_timeout(struct timer_list *t)
3655 {
3656 struct bttv *btv = from_timer(btv, t, timeout);
3657 struct bttv_buffer_set old,new;
3658 struct bttv_buffer *ovbi;
3659 struct bttv_buffer *item;
3660 unsigned long flags;
3661
3662 if (bttv_verbose) {
3663 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3664 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3665 btread(BT848_RISC_COUNT));
3666 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3667 pr_cont("\n");
3668 }
3669
3670 spin_lock_irqsave(&btv->s_lock,flags);
3671
3672 /* deactivate stuff */
3673 memset(&new,0,sizeof(new));
3674 old = btv->curr;
3675 ovbi = btv->cvbi;
3676 btv->curr = new;
3677 btv->cvbi = NULL;
3678 btv->loop_irq = 0;
3679 bttv_buffer_activate_video(btv, &new);
3680 bttv_buffer_activate_vbi(btv, NULL);
3681 bttv_set_dma(btv, 0);
3682
3683 /* wake up */
3684 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3685 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3686
3687 /* cancel all outstanding capture / vbi requests */
3688 while (!list_empty(&btv->capture)) {
3689 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3690 list_del(&item->vb.queue);
3691 item->vb.state = VIDEOBUF_ERROR;
3692 wake_up(&item->vb.done);
3693 }
3694 while (!list_empty(&btv->vcapture)) {
3695 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3696 list_del(&item->vb.queue);
3697 item->vb.state = VIDEOBUF_ERROR;
3698 wake_up(&item->vb.done);
3699 }
3700
3701 btv->errors++;
3702 spin_unlock_irqrestore(&btv->s_lock,flags);
3703 }
3704
3705 static void
3706 bttv_irq_wakeup_top(struct bttv *btv)
3707 {
3708 struct bttv_buffer *wakeup = btv->curr.top;
3709
3710 if (NULL == wakeup)
3711 return;
3712
3713 spin_lock(&btv->s_lock);
3714 btv->curr.top_irq = 0;
3715 btv->curr.top = NULL;
3716 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3717
3718 v4l2_get_timestamp(&wakeup->vb.ts);
3719 wakeup->vb.field_count = btv->field_count;
3720 wakeup->vb.state = VIDEOBUF_DONE;
3721 wake_up(&wakeup->vb.done);
3722 spin_unlock(&btv->s_lock);
3723 }
3724
3725 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3726 {
3727 if (rc < risc->dma)
3728 return 0;
3729 if (rc > risc->dma + risc->size)
3730 return 0;
3731 return 1;
3732 }
3733
3734 static void
3735 bttv_irq_switch_video(struct bttv *btv)
3736 {
3737 struct bttv_buffer_set new;
3738 struct bttv_buffer_set old;
3739 dma_addr_t rc;
3740
3741 spin_lock(&btv->s_lock);
3742
3743 /* new buffer set */
3744 bttv_irq_next_video(btv, &new);
3745 rc = btread(BT848_RISC_COUNT);
3746 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
3747 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3748 btv->framedrop++;
3749 if (debug_latency)
3750 bttv_irq_debug_low_latency(btv, rc);
3751 spin_unlock(&btv->s_lock);
3752 return;
3753 }
3754
3755 /* switch over */
3756 old = btv->curr;
3757 btv->curr = new;
3758 btv->loop_irq &= ~1;
3759 bttv_buffer_activate_video(btv, &new);
3760 bttv_set_dma(btv, 0);
3761
3762 /* switch input */
3763 if (UNSET != btv->new_input) {
3764 video_mux(btv,btv->new_input);
3765 btv->new_input = UNSET;
3766 }
3767
3768 /* wake up finished buffers */
3769 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3770 spin_unlock(&btv->s_lock);
3771 }
3772
3773 static void
3774 bttv_irq_switch_vbi(struct bttv *btv)
3775 {
3776 struct bttv_buffer *new = NULL;
3777 struct bttv_buffer *old;
3778 u32 rc;
3779
3780 spin_lock(&btv->s_lock);
3781
3782 if (!list_empty(&btv->vcapture))
3783 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3784 old = btv->cvbi;
3785
3786 rc = btread(BT848_RISC_COUNT);
3787 if (NULL != old && (is_active(&old->top, rc) ||
3788 is_active(&old->bottom, rc))) {
3789 btv->framedrop++;
3790 if (debug_latency)
3791 bttv_irq_debug_low_latency(btv, rc);
3792 spin_unlock(&btv->s_lock);
3793 return;
3794 }
3795
3796 /* switch */
3797 btv->cvbi = new;
3798 btv->loop_irq &= ~4;
3799 bttv_buffer_activate_vbi(btv, new);
3800 bttv_set_dma(btv, 0);
3801
3802 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
3803 spin_unlock(&btv->s_lock);
3804 }
3805
3806 static irqreturn_t bttv_irq(int irq, void *dev_id)
3807 {
3808 u32 stat,astat;
3809 u32 dstat;
3810 int count;
3811 struct bttv *btv;
3812 int handled = 0;
3813
3814 btv=(struct bttv *)dev_id;
3815
3816 count=0;
3817 while (1) {
3818 /* get/clear interrupt status bits */
3819 stat=btread(BT848_INT_STAT);
3820 astat=stat&btread(BT848_INT_MASK);
3821 if (!astat)
3822 break;
3823 handled = 1;
3824 btwrite(stat,BT848_INT_STAT);
3825
3826 /* get device status bits */
3827 dstat=btread(BT848_DSTATUS);
3828
3829 if (irq_debug) {
3830 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
3831 btv->c.nr, count, btv->field_count,
3832 stat>>28, btread(BT848_RISC_COUNT));
3833 bttv_print_irqbits(stat,astat);
3834 if (stat & BT848_INT_HLOCK)
3835 pr_cont(" HLOC => %s",
3836 dstat & BT848_DSTATUS_HLOC
3837 ? "yes" : "no");
3838 if (stat & BT848_INT_VPRES)
3839 pr_cont(" PRES => %s",
3840 dstat & BT848_DSTATUS_PRES
3841 ? "yes" : "no");
3842 if (stat & BT848_INT_FMTCHG)
3843 pr_cont(" NUML => %s",
3844 dstat & BT848_DSTATUS_NUML
3845 ? "625" : "525");
3846 pr_cont("\n");
3847 }
3848
3849 if (astat&BT848_INT_VSYNC)
3850 btv->field_count++;
3851
3852 if ((astat & BT848_INT_GPINT) && btv->remote) {
3853 bttv_input_irq(btv);
3854 }
3855
3856 if (astat & BT848_INT_I2CDONE) {
3857 btv->i2c_done = stat;
3858 wake_up(&btv->i2c_queue);
3859 }
3860
3861 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
3862 bttv_irq_switch_vbi(btv);
3863
3864 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
3865 bttv_irq_wakeup_top(btv);
3866
3867 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
3868 bttv_irq_switch_video(btv);
3869
3870 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
3871 /* trigger automute */
3872 audio_mux_gpio(btv, btv->audio_input, btv->mute);
3873
3874 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3875 pr_info("%d: %s%s @ %08x,",
3876 btv->c.nr,
3877 (astat & BT848_INT_SCERR) ? "SCERR" : "",
3878 (astat & BT848_INT_OCERR) ? "OCERR" : "",
3879 btread(BT848_RISC_COUNT));
3880 bttv_print_irqbits(stat,astat);
3881 pr_cont("\n");
3882 if (bttv_debug)
3883 bttv_print_riscaddr(btv);
3884 }
3885 if (fdsr && astat & BT848_INT_FDSR) {
3886 pr_info("%d: FDSR @ %08x\n",
3887 btv->c.nr, btread(BT848_RISC_COUNT));
3888 if (bttv_debug)
3889 bttv_print_riscaddr(btv);
3890 }
3891
3892 count++;
3893 if (count > 4) {
3894
3895 if (count > 8 || !(astat & BT848_INT_GPINT)) {
3896 btwrite(0, BT848_INT_MASK);
3897
3898 pr_err("%d: IRQ lockup, cleared int mask [",
3899 btv->c.nr);
3900 } else {
3901 pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
3902 btv->c.nr);
3903
3904 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3905 BT848_INT_MASK);
3906 }
3907
3908 bttv_print_irqbits(stat,astat);
3909
3910 pr_cont("]\n");
3911 }
3912 }
3913 btv->irq_total++;
3914 if (handled)
3915 btv->irq_me++;
3916 return IRQ_RETVAL(handled);
3917 }
3918
3919
3920 /* ----------------------------------------------------------------------- */
3921 /* initialization */
3922
3923 static void vdev_init(struct bttv *btv,
3924 struct video_device *vfd,
3925 const struct video_device *template,
3926 const char *type_name)
3927 {
3928 *vfd = *template;
3929 vfd->v4l2_dev = &btv->c.v4l2_dev;
3930 vfd->release = video_device_release_empty;
3931 video_set_drvdata(vfd, btv);
3932 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3933 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3934 type_name, bttv_tvcards[btv->c.type].name);
3935 if (btv->tuner_type == TUNER_ABSENT) {
3936 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
3937 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
3938 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
3939 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
3940 }
3941 }
3942
3943 static void bttv_unregister_video(struct bttv *btv)
3944 {
3945 video_unregister_device(&btv->video_dev);
3946 video_unregister_device(&btv->vbi_dev);
3947 video_unregister_device(&btv->radio_dev);
3948 }
3949
3950 /* register video4linux devices */
3951 static int bttv_register_video(struct bttv *btv)
3952 {
3953 if (no_overlay > 0)
3954 pr_notice("Overlay support disabled\n");
3955
3956 /* video */
3957 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
3958
3959 if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
3960 video_nr[btv->c.nr]) < 0)
3961 goto err;
3962 pr_info("%d: registered device %s\n",
3963 btv->c.nr, video_device_node_name(&btv->video_dev));
3964 if (device_create_file(&btv->video_dev.dev,
3965 &dev_attr_card)<0) {
3966 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
3967 goto err;
3968 }
3969
3970 /* vbi */
3971 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
3972
3973 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
3974 vbi_nr[btv->c.nr]) < 0)
3975 goto err;
3976 pr_info("%d: registered device %s\n",
3977 btv->c.nr, video_device_node_name(&btv->vbi_dev));
3978
3979 if (!btv->has_radio)
3980 return 0;
3981 /* radio */
3982 vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
3983 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
3984 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
3985 radio_nr[btv->c.nr]) < 0)
3986 goto err;
3987 pr_info("%d: registered device %s\n",
3988 btv->c.nr, video_device_node_name(&btv->radio_dev));
3989
3990 /* all done */
3991 return 0;
3992
3993 err:
3994 bttv_unregister_video(btv);
3995 return -1;
3996 }
3997
3998
3999 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4000 /* response on cards with no firmware is not enabled by OF */
4001 static void pci_set_command(struct pci_dev *dev)
4002 {
4003 #if defined(__powerpc__)
4004 unsigned int cmd;
4005
4006 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4007 cmd = (cmd | PCI_COMMAND_MEMORY );
4008 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4009 #endif
4010 }
4011
4012 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
4013 {
4014 struct v4l2_frequency init_freq = {
4015 .tuner = 0,
4016 .type = V4L2_TUNER_ANALOG_TV,
4017 .frequency = 980,
4018 };
4019 int result;
4020 unsigned char lat;
4021 struct bttv *btv;
4022 struct v4l2_ctrl_handler *hdl;
4023
4024 if (bttv_num == BTTV_MAX)
4025 return -ENOMEM;
4026 pr_info("Bt8xx card found (%d)\n", bttv_num);
4027 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
4028 if (btv == NULL) {
4029 pr_err("out of memory\n");
4030 return -ENOMEM;
4031 }
4032 btv->c.nr = bttv_num;
4033 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
4034 "bttv%d", btv->c.nr);
4035
4036 /* initialize structs / fill in defaults */
4037 mutex_init(&btv->lock);
4038 spin_lock_init(&btv->s_lock);
4039 spin_lock_init(&btv->gpio_lock);
4040 init_waitqueue_head(&btv->i2c_queue);
4041 INIT_LIST_HEAD(&btv->c.subs);
4042 INIT_LIST_HEAD(&btv->capture);
4043 INIT_LIST_HEAD(&btv->vcapture);
4044
4045 timer_setup(&btv->timeout, bttv_irq_timeout, 0);
4046
4047 btv->i2c_rc = -1;
4048 btv->tuner_type = UNSET;
4049 btv->new_input = UNSET;
4050 btv->has_radio=radio[btv->c.nr];
4051
4052 /* pci stuff (init, get irq/mmio, ... */
4053 btv->c.pci = dev;
4054 btv->id = dev->device;
4055 if (pci_enable_device(dev)) {
4056 pr_warn("%d: Can't enable device\n", btv->c.nr);
4057 return -EIO;
4058 }
4059 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
4060 pr_warn("%d: No suitable DMA available\n", btv->c.nr);
4061 return -EIO;
4062 }
4063 if (!request_mem_region(pci_resource_start(dev,0),
4064 pci_resource_len(dev,0),
4065 btv->c.v4l2_dev.name)) {
4066 pr_warn("%d: can't request iomem (0x%llx)\n",
4067 btv->c.nr,
4068 (unsigned long long)pci_resource_start(dev, 0));
4069 return -EBUSY;
4070 }
4071 pci_set_master(dev);
4072 pci_set_command(dev);
4073
4074 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
4075 if (result < 0) {
4076 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
4077 goto fail0;
4078 }
4079 hdl = &btv->ctrl_handler;
4080 v4l2_ctrl_handler_init(hdl, 20);
4081 btv->c.v4l2_dev.ctrl_handler = hdl;
4082 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
4083
4084 btv->revision = dev->revision;
4085 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4086 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
4087 bttv_num, btv->id, btv->revision, pci_name(dev),
4088 btv->c.pci->irq, lat,
4089 (unsigned long long)pci_resource_start(dev, 0));
4090 schedule();
4091
4092 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4093 if (NULL == btv->bt848_mmio) {
4094 pr_err("%d: ioremap() failed\n", btv->c.nr);
4095 result = -EIO;
4096 goto fail1;
4097 }
4098
4099 /* identify card */
4100 bttv_idcard(btv);
4101
4102 /* disable irqs, register irq handler */
4103 btwrite(0, BT848_INT_MASK);
4104 result = request_irq(btv->c.pci->irq, bttv_irq,
4105 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
4106 if (result < 0) {
4107 pr_err("%d: can't get IRQ %d\n",
4108 bttv_num, btv->c.pci->irq);
4109 goto fail1;
4110 }
4111
4112 if (0 != bttv_handle_chipset(btv)) {
4113 result = -EIO;
4114 goto fail2;
4115 }
4116
4117 /* init options from insmod args */
4118 btv->opt_combfilter = combfilter;
4119 bttv_ctrl_combfilter.def = combfilter;
4120 bttv_ctrl_lumafilter.def = lumafilter;
4121 btv->opt_automute = automute;
4122 bttv_ctrl_automute.def = automute;
4123 bttv_ctrl_agc_crush.def = agc_crush;
4124 btv->opt_vcr_hack = vcr_hack;
4125 bttv_ctrl_vcr_hack.def = vcr_hack;
4126 bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
4127 bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
4128 btv->opt_uv_ratio = uv_ratio;
4129 bttv_ctrl_uv_ratio.def = uv_ratio;
4130 bttv_ctrl_full_luma.def = full_luma_range;
4131 bttv_ctrl_coring.def = coring;
4132
4133 /* fill struct bttv with some useful defaults */
4134 btv->init.btv = btv;
4135 btv->init.ov.w.width = 320;
4136 btv->init.ov.w.height = 240;
4137 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4138 btv->init.width = 320;
4139 btv->init.height = 240;
4140 btv->init.ov.w.width = 320;
4141 btv->init.ov.w.height = 240;
4142 btv->init.ov.field = V4L2_FIELD_INTERLACED;
4143 btv->input = 0;
4144
4145 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4146 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
4147 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4148 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
4149 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4150 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
4151 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4152 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
4153 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4154 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
4155 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4156 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
4157 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4158 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
4159 if (btv->volume_gpio)
4160 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4161 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
4162 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
4163 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
4164 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
4165 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
4166 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
4167 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
4168 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
4169 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
4170 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
4171 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
4172
4173 /* initialize hardware */
4174 if (bttv_gpio)
4175 bttv_gpio_tracking(btv,"pre-init");
4176
4177 bttv_risc_init_main(btv);
4178 init_bt848(btv);
4179
4180 /* gpio */
4181 btwrite(0x00, BT848_GPIO_REG_INP);
4182 btwrite(0x00, BT848_GPIO_OUT_EN);
4183 if (bttv_verbose)
4184 bttv_gpio_tracking(btv,"init");
4185
4186 /* needs to be done before i2c is registered */
4187 bttv_init_card1(btv);
4188
4189 /* register i2c + gpio */
4190 init_bttv_i2c(btv);
4191
4192 /* some card-specific stuff (needs working i2c) */
4193 bttv_init_card2(btv);
4194 bttv_init_tuner(btv);
4195 if (btv->tuner_type != TUNER_ABSENT) {
4196 bttv_set_frequency(btv, &init_freq);
4197 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
4198 }
4199 btv->std = V4L2_STD_PAL;
4200 init_irqreg(btv);
4201 if (!bttv_tvcards[btv->c.type].no_video)
4202 v4l2_ctrl_handler_setup(hdl);
4203 if (hdl->error) {
4204 result = hdl->error;
4205 goto fail2;
4206 }
4207 /* mute device */
4208 audio_mute(btv, 1);
4209
4210 /* register video4linux + input */
4211 if (!bttv_tvcards[btv->c.type].no_video) {
4212 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
4213 v4l2_ctrl_radio_filter, false);
4214 if (btv->radio_ctrl_handler.error) {
4215 result = btv->radio_ctrl_handler.error;
4216 goto fail2;
4217 }
4218 set_input(btv, 0, btv->tvnorm);
4219 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4220 btv->crop[1] = btv->crop[0]; /* current = default */
4221 disclaim_vbi_lines(btv);
4222 disclaim_video_lines(btv);
4223 bttv_register_video(btv);
4224 }
4225
4226 /* add subdevices and autoload dvb-bt8xx if needed */
4227 if (bttv_tvcards[btv->c.type].has_dvb) {
4228 bttv_sub_add_device(&btv->c, "dvb");
4229 request_modules(btv);
4230 }
4231
4232 if (!disable_ir) {
4233 init_bttv_i2c_ir(btv);
4234 bttv_input_init(btv);
4235 }
4236
4237 /* everything is fine */
4238 bttv_num++;
4239 return 0;
4240
4241 fail2:
4242 free_irq(btv->c.pci->irq,btv);
4243
4244 fail1:
4245 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4246 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4247 v4l2_device_unregister(&btv->c.v4l2_dev);
4248
4249 fail0:
4250 if (btv->bt848_mmio)
4251 iounmap(btv->bt848_mmio);
4252 release_mem_region(pci_resource_start(btv->c.pci,0),
4253 pci_resource_len(btv->c.pci,0));
4254 pci_disable_device(btv->c.pci);
4255 return result;
4256 }
4257
4258 static void bttv_remove(struct pci_dev *pci_dev)
4259 {
4260 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4261 struct bttv *btv = to_bttv(v4l2_dev);
4262
4263 if (bttv_verbose)
4264 pr_info("%d: unloading\n", btv->c.nr);
4265
4266 if (bttv_tvcards[btv->c.type].has_dvb)
4267 flush_request_modules(btv);
4268
4269 /* shutdown everything (DMA+IRQs) */
4270 btand(~15, BT848_GPIO_DMA_CTL);
4271 btwrite(0, BT848_INT_MASK);
4272 btwrite(~0x0, BT848_INT_STAT);
4273 btwrite(0x0, BT848_GPIO_OUT_EN);
4274 if (bttv_gpio)
4275 bttv_gpio_tracking(btv,"cleanup");
4276
4277 /* tell gpio modules we are leaving ... */
4278 btv->shutdown=1;
4279 bttv_input_fini(btv);
4280 bttv_sub_del_devices(&btv->c);
4281
4282 /* unregister i2c_bus + input */
4283 fini_bttv_i2c(btv);
4284
4285 /* unregister video4linux */
4286 bttv_unregister_video(btv);
4287
4288 /* free allocated memory */
4289 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4290 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4291 btcx_riscmem_free(btv->c.pci,&btv->main);
4292
4293 /* free resources */
4294 free_irq(btv->c.pci->irq,btv);
4295 iounmap(btv->bt848_mmio);
4296 release_mem_region(pci_resource_start(btv->c.pci,0),
4297 pci_resource_len(btv->c.pci,0));
4298 pci_disable_device(btv->c.pci);
4299
4300 v4l2_device_unregister(&btv->c.v4l2_dev);
4301 bttvs[btv->c.nr] = NULL;
4302 kfree(btv);
4303
4304 return;
4305 }
4306
4307 #ifdef CONFIG_PM
4308 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4309 {
4310 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4311 struct bttv *btv = to_bttv(v4l2_dev);
4312 struct bttv_buffer_set idle;
4313 unsigned long flags;
4314
4315 dprintk("%d: suspend %d\n", btv->c.nr, state.event);
4316
4317 /* stop dma + irqs */
4318 spin_lock_irqsave(&btv->s_lock,flags);
4319 memset(&idle, 0, sizeof(idle));
4320 btv->state.video = btv->curr;
4321 btv->state.vbi = btv->cvbi;
4322 btv->state.loop_irq = btv->loop_irq;
4323 btv->curr = idle;
4324 btv->loop_irq = 0;
4325 bttv_buffer_activate_video(btv, &idle);
4326 bttv_buffer_activate_vbi(btv, NULL);
4327 bttv_set_dma(btv, 0);
4328 btwrite(0, BT848_INT_MASK);
4329 spin_unlock_irqrestore(&btv->s_lock,flags);
4330
4331 /* save bt878 state */
4332 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4333 btv->state.gpio_data = gpio_read();
4334
4335 /* save pci state */
4336 pci_save_state(pci_dev);
4337 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4338 pci_disable_device(pci_dev);
4339 btv->state.disabled = 1;
4340 }
4341 return 0;
4342 }
4343
4344 static int bttv_resume(struct pci_dev *pci_dev)
4345 {
4346 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4347 struct bttv *btv = to_bttv(v4l2_dev);
4348 unsigned long flags;
4349 int err;
4350
4351 dprintk("%d: resume\n", btv->c.nr);
4352
4353 /* restore pci state */
4354 if (btv->state.disabled) {
4355 err=pci_enable_device(pci_dev);
4356 if (err) {
4357 pr_warn("%d: Can't enable device\n", btv->c.nr);
4358 return err;
4359 }
4360 btv->state.disabled = 0;
4361 }
4362 err=pci_set_power_state(pci_dev, PCI_D0);
4363 if (err) {
4364 pci_disable_device(pci_dev);
4365 pr_warn("%d: Can't enable device\n", btv->c.nr);
4366 btv->state.disabled = 1;
4367 return err;
4368 }
4369
4370 pci_restore_state(pci_dev);
4371
4372 /* restore bt878 state */
4373 bttv_reinit_bt848(btv);
4374 gpio_inout(0xffffff, btv->state.gpio_enable);
4375 gpio_write(btv->state.gpio_data);
4376
4377 /* restart dma */
4378 spin_lock_irqsave(&btv->s_lock,flags);
4379 btv->curr = btv->state.video;
4380 btv->cvbi = btv->state.vbi;
4381 btv->loop_irq = btv->state.loop_irq;
4382 bttv_buffer_activate_video(btv, &btv->curr);
4383 bttv_buffer_activate_vbi(btv, btv->cvbi);
4384 bttv_set_dma(btv, 0);
4385 spin_unlock_irqrestore(&btv->s_lock,flags);
4386 return 0;
4387 }
4388 #endif
4389
4390 static const struct pci_device_id bttv_pci_tbl[] = {
4391 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
4392 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
4393 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
4394 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
4395 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
4396 {0,}
4397 };
4398
4399 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4400
4401 static struct pci_driver bttv_pci_driver = {
4402 .name = "bttv",
4403 .id_table = bttv_pci_tbl,
4404 .probe = bttv_probe,
4405 .remove = bttv_remove,
4406 #ifdef CONFIG_PM
4407 .suspend = bttv_suspend,
4408 .resume = bttv_resume,
4409 #endif
4410 };
4411
4412 static int __init bttv_init_module(void)
4413 {
4414 int ret;
4415
4416 bttv_num = 0;
4417
4418 pr_info("driver version %s loaded\n", BTTV_VERSION);
4419 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4420 gbuffers = 2;
4421 if (gbufsize > BTTV_MAX_FBUF)
4422 gbufsize = BTTV_MAX_FBUF;
4423 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4424 if (bttv_verbose)
4425 pr_info("using %d buffers with %dk (%d pages) each for capture\n",
4426 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4427
4428 bttv_check_chipset();
4429
4430 ret = bus_register(&bttv_sub_bus_type);
4431 if (ret < 0) {
4432 pr_warn("bus_register error: %d\n", ret);
4433 return ret;
4434 }
4435 ret = pci_register_driver(&bttv_pci_driver);
4436 if (ret < 0)
4437 bus_unregister(&bttv_sub_bus_type);
4438
4439 return ret;
4440 }
4441
4442 static void __exit bttv_cleanup_module(void)
4443 {
4444 pci_unregister_driver(&bttv_pci_driver);
4445 bus_unregister(&bttv_sub_bus_type);
4446 }
4447
4448 module_init(bttv_init_module);
4449 module_exit(bttv_cleanup_module);
Linux with added FPC-III support