1050 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * cx18 ioctl system call4 *5 * Derived from ivtv-ioctl.c6 *7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>8 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>9 */10 11#include "cx18-driver.h"12#include "cx18-io.h"13#include "cx18-version.h"14#include "cx18-mailbox.h"15#include "cx18-i2c.h"16#include "cx18-queue.h"17#include "cx18-fileops.h"18#include "cx18-vbi.h"19#include "cx18-audio.h"20#include "cx18-video.h"21#include "cx18-streams.h"22#include "cx18-ioctl.h"23#include "cx18-gpio.h"24#include "cx18-controls.h"25#include "cx18-cards.h"26#include "cx18-av-core.h"27#include <media/tveeprom.h>28#include <media/v4l2-event.h>29 30static const struct v4l2_fmtdesc cx18_formats_yuv[] = {31 {32 .index = 0,33 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,34 .pixelformat = V4L2_PIX_FMT_NV12_16L16,35 },36 {37 .index = 1,38 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,39 .pixelformat = V4L2_PIX_FMT_UYVY,40 },41};42 43static const struct v4l2_fmtdesc cx18_formats_mpeg[] = {44 {45 .index = 0,46 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,47 .flags = V4L2_FMT_FLAG_COMPRESSED,48 .pixelformat = V4L2_PIX_FMT_MPEG,49 },50};51 52static int cx18_g_fmt_vid_cap(struct file *file, void *fh,53 struct v4l2_format *fmt)54{55 struct cx18_open_id *id = fh2id(fh);56 struct cx18 *cx = id->cx;57 struct cx18_stream *s = &cx->streams[id->type];58 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;59 60 pixfmt->width = cx->cxhdl.width;61 pixfmt->height = cx->cxhdl.height;62 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;63 pixfmt->field = V4L2_FIELD_INTERLACED;64 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {65 pixfmt->pixelformat = s->pixelformat;66 pixfmt->sizeimage = s->vb_bytes_per_frame;67 pixfmt->bytesperline = s->vb_bytes_per_line;68 } else {69 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;70 pixfmt->sizeimage = 128 * 1024;71 pixfmt->bytesperline = 0;72 }73 return 0;74}75 76static int cx18_try_fmt_vid_cap(struct file *file, void *fh,77 struct v4l2_format *fmt)78{79 struct cx18_open_id *id = fh2id(fh);80 struct cx18 *cx = id->cx;81 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;82 int w = pixfmt->width;83 int h = pixfmt->height;84 85 w = min(w, 720);86 w = max(w, 720 / 16);87 88 h = min(h, cx->is_50hz ? 576 : 480);89 h = max(h, (cx->is_50hz ? 576 : 480) / 8);90 91 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {92 if (pixfmt->pixelformat != V4L2_PIX_FMT_NV12_16L16 &&93 pixfmt->pixelformat != V4L2_PIX_FMT_UYVY)94 pixfmt->pixelformat = V4L2_PIX_FMT_UYVY;95 /* YUV height must be a multiple of 32 */96 h = round_up(h, 32);97 /*98 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))99 * UYUV YUV size is (Y=(h*720) + UV=(h*(720)))100 */101 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12_16L16) {102 pixfmt->sizeimage = h * 720 * 3 / 2;103 pixfmt->bytesperline = 720; /* First plane */104 } else {105 pixfmt->sizeimage = h * 720 * 2;106 pixfmt->bytesperline = 1440; /* Packed */107 }108 } else {109 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;110 pixfmt->sizeimage = 128 * 1024;111 pixfmt->bytesperline = 0;112 }113 114 pixfmt->width = w;115 pixfmt->height = h;116 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;117 pixfmt->field = V4L2_FIELD_INTERLACED;118 return 0;119}120 121static int cx18_s_fmt_vid_cap(struct file *file, void *fh,122 struct v4l2_format *fmt)123{124 struct cx18_open_id *id = fh2id(fh);125 struct cx18 *cx = id->cx;126 struct v4l2_subdev_format format = {127 .which = V4L2_SUBDEV_FORMAT_ACTIVE,128 };129 struct cx18_stream *s = &cx->streams[id->type];130 int ret;131 int w, h;132 133 ret = cx18_try_fmt_vid_cap(file, fh, fmt);134 if (ret)135 return ret;136 w = fmt->fmt.pix.width;137 h = fmt->fmt.pix.height;138 139 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&140 s->pixelformat == fmt->fmt.pix.pixelformat)141 return 0;142 143 if (atomic_read(&cx->ana_capturing) > 0)144 return -EBUSY;145 146 s->pixelformat = fmt->fmt.pix.pixelformat;147 s->vb_bytes_per_frame = fmt->fmt.pix.sizeimage;148 s->vb_bytes_per_line = fmt->fmt.pix.bytesperline;149 150 format.format.width = cx->cxhdl.width = w;151 format.format.height = cx->cxhdl.height = h;152 format.format.code = MEDIA_BUS_FMT_FIXED;153 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);154 return cx18_g_fmt_vid_cap(file, fh, fmt);155}156 157u16 cx18_service2vbi(int type)158{159 switch (type) {160 case V4L2_SLICED_TELETEXT_B:161 return CX18_SLICED_TYPE_TELETEXT_B;162 case V4L2_SLICED_CAPTION_525:163 return CX18_SLICED_TYPE_CAPTION_525;164 case V4L2_SLICED_WSS_625:165 return CX18_SLICED_TYPE_WSS_625;166 case V4L2_SLICED_VPS:167 return CX18_SLICED_TYPE_VPS;168 default:169 return 0;170 }171}172 173/* Check if VBI services are allowed on the (field, line) for the video std */174static int valid_service_line(int field, int line, int is_pal)175{176 return (is_pal && line >= 6 &&177 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||178 (!is_pal && line >= 10 && line < 22);179}180 181/*182 * For a (field, line, std) and inbound potential set of services for that line,183 * return the first valid service of those passed in the incoming set for that184 * line in priority order:185 * CC, VPS, or WSS over TELETEXT for well known lines186 * TELETEXT, before VPS, before CC, before WSS, for other lines187 */188static u16 select_service_from_set(int field, int line, u16 set, int is_pal)189{190 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);191 int i;192 193 set = set & valid_set;194 if (set == 0 || !valid_service_line(field, line, is_pal))195 return 0;196 if (!is_pal) {197 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))198 return V4L2_SLICED_CAPTION_525;199 } else {200 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))201 return V4L2_SLICED_VPS;202 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))203 return V4L2_SLICED_WSS_625;204 if (line == 23)205 return 0;206 }207 for (i = 0; i < 32; i++) {208 if (BIT(i) & set)209 return 1 << i;210 }211 return 0;212}213 214/*215 * Expand the service_set of *fmt into valid service_lines for the std,216 * and clear the passed in fmt->service_set217 */218void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)219{220 u16 set = fmt->service_set;221 int f, l;222 223 fmt->service_set = 0;224 for (f = 0; f < 2; f++) {225 for (l = 0; l < 24; l++)226 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);227 }228}229 230/*231 * Sanitize the service_lines in *fmt per the video std, and return 1232 * if any service_line is left as valid after santization233 */234static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)235{236 int f, l;237 u16 set = 0;238 239 for (f = 0; f < 2; f++) {240 for (l = 0; l < 24; l++) {241 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);242 set |= fmt->service_lines[f][l];243 }244 }245 return set != 0;246}247 248/* Compute the service_set from the assumed valid service_lines of *fmt */249u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)250{251 int f, l;252 u16 set = 0;253 254 for (f = 0; f < 2; f++) {255 for (l = 0; l < 24; l++)256 set |= fmt->service_lines[f][l];257 }258 return set;259}260 261static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,262 struct v4l2_format *fmt)263{264 struct cx18 *cx = fh2id(fh)->cx;265 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;266 267 vbifmt->sampling_rate = 27000000;268 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */269 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4;270 vbifmt->sample_format = V4L2_PIX_FMT_GREY;271 vbifmt->start[0] = cx->vbi.start[0];272 vbifmt->start[1] = cx->vbi.start[1];273 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;274 vbifmt->flags = 0;275 vbifmt->reserved[0] = 0;276 vbifmt->reserved[1] = 0;277 return 0;278}279 280static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,281 struct v4l2_format *fmt)282{283 struct cx18 *cx = fh2id(fh)->cx;284 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;285 286 /* sane, V4L2 spec compliant, defaults */287 vbifmt->reserved[0] = 0;288 vbifmt->reserved[1] = 0;289 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;290 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));291 vbifmt->service_set = 0;292 293 /*294 * Fetch the configured service_lines and total service_set from the295 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in296 * fmt->fmt.sliced under valid calling conditions297 */298 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))299 return -EINVAL;300 301 vbifmt->service_set = cx18_get_service_set(vbifmt);302 return 0;303}304 305static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,306 struct v4l2_format *fmt)307{308 return cx18_g_fmt_vbi_cap(file, fh, fmt);309}310 311static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,312 struct v4l2_format *fmt)313{314 struct cx18 *cx = fh2id(fh)->cx;315 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;316 317 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;318 vbifmt->reserved[0] = 0;319 vbifmt->reserved[1] = 0;320 321 /* If given a service set, expand it validly & clear passed in set */322 if (vbifmt->service_set)323 cx18_expand_service_set(vbifmt, cx->is_50hz);324 /* Sanitize the service_lines, and compute the new set if any valid */325 if (check_service_set(vbifmt, cx->is_50hz))326 vbifmt->service_set = cx18_get_service_set(vbifmt);327 return 0;328}329 330static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,331 struct v4l2_format *fmt)332{333 struct cx18_open_id *id = fh2id(fh);334 struct cx18 *cx = id->cx;335 int ret;336 337 /*338 * Changing the Encoder's Raw VBI parameters won't have any effect339 * if any analog capture is ongoing340 */341 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)342 return -EBUSY;343 344 /*345 * Set the digitizer registers for raw active VBI.346 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid347 * calling conditions348 */349 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);350 if (ret)351 return ret;352 353 /* Store our new v4l2 (non-)sliced VBI state */354 cx->vbi.sliced_in->service_set = 0;355 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;356 357 return cx18_g_fmt_vbi_cap(file, fh, fmt);358}359 360static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,361 struct v4l2_format *fmt)362{363 struct cx18_open_id *id = fh2id(fh);364 struct cx18 *cx = id->cx;365 int ret;366 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;367 368 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);369 370 /*371 * Changing the Encoder's Raw VBI parameters won't have any effect372 * if any analog capture is ongoing373 */374 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)375 return -EBUSY;376 377 /*378 * Set the service_lines requested in the digitizer/slicer registers.379 * Note, cx18_av_vbi() wipes some "impossible" service lines in the380 * passed in fmt->fmt.sliced under valid calling conditions381 */382 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);383 if (ret)384 return ret;385 /* Store our current v4l2 sliced VBI settings */386 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;387 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));388 return 0;389}390 391#ifdef CONFIG_VIDEO_ADV_DEBUG392static int cx18_g_register(struct file *file, void *fh,393 struct v4l2_dbg_register *reg)394{395 struct cx18 *cx = fh2id(fh)->cx;396 397 if (reg->reg & 0x3)398 return -EINVAL;399 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)400 return -EINVAL;401 reg->size = 4;402 reg->val = cx18_read_enc(cx, reg->reg);403 return 0;404}405 406static int cx18_s_register(struct file *file, void *fh,407 const struct v4l2_dbg_register *reg)408{409 struct cx18 *cx = fh2id(fh)->cx;410 411 if (reg->reg & 0x3)412 return -EINVAL;413 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)414 return -EINVAL;415 cx18_write_enc(cx, reg->val, reg->reg);416 return 0;417}418#endif419 420static int cx18_querycap(struct file *file, void *fh,421 struct v4l2_capability *vcap)422{423 struct cx18_open_id *id = fh2id(fh);424 struct cx18 *cx = id->cx;425 426 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));427 strscpy(vcap->card, cx->card_name, sizeof(vcap->card));428 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS;429 return 0;430}431 432static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)433{434 struct cx18 *cx = fh2id(fh)->cx;435 436 return cx18_get_audio_input(cx, vin->index, vin);437}438 439static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)440{441 struct cx18 *cx = fh2id(fh)->cx;442 443 vin->index = cx->audio_input;444 return cx18_get_audio_input(cx, vin->index, vin);445}446 447static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout)448{449 struct cx18 *cx = fh2id(fh)->cx;450 451 if (vout->index >= cx->nof_audio_inputs)452 return -EINVAL;453 cx->audio_input = vout->index;454 cx18_audio_set_io(cx);455 return 0;456}457 458static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)459{460 struct cx18 *cx = fh2id(fh)->cx;461 462 /* set it to defaults from our table */463 return cx18_get_input(cx, vin->index, vin);464}465 466static int cx18_g_pixelaspect(struct file *file, void *fh,467 int type, struct v4l2_fract *f)468{469 struct cx18 *cx = fh2id(fh)->cx;470 471 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)472 return -EINVAL;473 474 f->numerator = cx->is_50hz ? 54 : 11;475 f->denominator = cx->is_50hz ? 59 : 10;476 return 0;477}478 479static int cx18_g_selection(struct file *file, void *fh,480 struct v4l2_selection *sel)481{482 struct cx18 *cx = fh2id(fh)->cx;483 484 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)485 return -EINVAL;486 switch (sel->target) {487 case V4L2_SEL_TGT_CROP_BOUNDS:488 case V4L2_SEL_TGT_CROP_DEFAULT:489 sel->r.top = sel->r.left = 0;490 sel->r.width = 720;491 sel->r.height = cx->is_50hz ? 576 : 480;492 break;493 default:494 return -EINVAL;495 }496 return 0;497}498 499static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,500 struct v4l2_fmtdesc *fmt)501{502 struct cx18_open_id *id = fh2id(fh);503 504 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {505 if (fmt->index >= ARRAY_SIZE(cx18_formats_yuv))506 return -EINVAL;507 *fmt = cx18_formats_yuv[fmt->index];508 return 0;509 }510 if (fmt->index)511 return -EINVAL;512 *fmt = cx18_formats_mpeg[0];513 return 0;514}515 516static int cx18_g_input(struct file *file, void *fh, unsigned int *i)517{518 struct cx18 *cx = fh2id(fh)->cx;519 520 *i = cx->active_input;521 return 0;522}523 524int cx18_s_input(struct file *file, void *fh, unsigned int inp)525{526 struct cx18_open_id *id = fh2id(fh);527 struct cx18 *cx = id->cx;528 v4l2_std_id std = V4L2_STD_ALL;529 const struct cx18_card_video_input *card_input =530 cx->card->video_inputs + inp;531 532 if (inp >= cx->nof_inputs)533 return -EINVAL;534 535 if (inp == cx->active_input) {536 CX18_DEBUG_INFO("Input unchanged\n");537 return 0;538 }539 540 CX18_DEBUG_INFO("Changing input from %d to %d\n",541 cx->active_input, inp);542 543 cx->active_input = inp;544 /* Set the audio input to whatever is appropriate for the input type. */545 cx->audio_input = cx->card->video_inputs[inp].audio_index;546 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER)547 std = cx->tuner_std;548 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std;549 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std;550 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std;551 552 /* prevent others from messing with the streams until553 we're finished changing inputs. */554 cx18_mute(cx);555 cx18_video_set_io(cx);556 cx18_audio_set_io(cx);557 cx18_unmute(cx);558 return 0;559}560 561static int cx18_g_frequency(struct file *file, void *fh,562 struct v4l2_frequency *vf)563{564 struct cx18 *cx = fh2id(fh)->cx;565 566 if (vf->tuner != 0)567 return -EINVAL;568 569 cx18_call_all(cx, tuner, g_frequency, vf);570 return 0;571}572 573int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)574{575 struct cx18_open_id *id = fh2id(fh);576 struct cx18 *cx = id->cx;577 578 if (vf->tuner != 0)579 return -EINVAL;580 581 cx18_mute(cx);582 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);583 cx18_call_all(cx, tuner, s_frequency, vf);584 cx18_unmute(cx);585 return 0;586}587 588static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)589{590 struct cx18 *cx = fh2id(fh)->cx;591 592 *std = cx->std;593 return 0;594}595 596int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)597{598 struct cx18_open_id *id = fh2id(fh);599 struct cx18 *cx = id->cx;600 601 if ((std & V4L2_STD_ALL) == 0)602 return -EINVAL;603 604 if (std == cx->std)605 return 0;606 607 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||608 atomic_read(&cx->ana_capturing) > 0) {609 /* Switching standard would turn off the radio or mess610 with already running streams, prevent that by611 returning EBUSY. */612 return -EBUSY;613 }614 615 cx->std = std;616 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;617 cx->is_50hz = !cx->is_60hz;618 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);619 cx->cxhdl.width = 720;620 cx->cxhdl.height = cx->is_50hz ? 576 : 480;621 /*622 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))623 * UYUV YUV size is (Y=(h*720) + UV=(h*(720)))624 */625 if (cx->streams[CX18_ENC_STREAM_TYPE_YUV].pixelformat == V4L2_PIX_FMT_NV12_16L16) {626 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame =627 cx->cxhdl.height * 720 * 3 / 2;628 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 720;629 } else {630 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame =631 cx->cxhdl.height * 720 * 2;632 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 1440;633 }634 cx->vbi.count = cx->is_50hz ? 18 : 12;635 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;636 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;637 CX18_DEBUG_INFO("Switching standard to %llx.\n",638 (unsigned long long) cx->std);639 640 /* Tuner */641 cx18_call_all(cx, video, s_std, cx->std);642 return 0;643}644 645static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)646{647 struct cx18_open_id *id = fh2id(fh);648 struct cx18 *cx = id->cx;649 650 if (vt->index != 0)651 return -EINVAL;652 653 cx18_call_all(cx, tuner, s_tuner, vt);654 return 0;655}656 657static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)658{659 struct cx18 *cx = fh2id(fh)->cx;660 661 if (vt->index != 0)662 return -EINVAL;663 664 cx18_call_all(cx, tuner, g_tuner, vt);665 666 if (vt->type == V4L2_TUNER_RADIO)667 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));668 else669 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));670 return 0;671}672 673static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,674 struct v4l2_sliced_vbi_cap *cap)675{676 struct cx18 *cx = fh2id(fh)->cx;677 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;678 int f, l;679 680 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)681 return -EINVAL;682 683 cap->service_set = 0;684 for (f = 0; f < 2; f++) {685 for (l = 0; l < 24; l++) {686 if (valid_service_line(f, l, cx->is_50hz)) {687 /*688 * We can find all v4l2 supported vbi services689 * for the standard, on a valid line for the std690 */691 cap->service_lines[f][l] = set;692 cap->service_set |= set;693 } else694 cap->service_lines[f][l] = 0;695 }696 }697 for (f = 0; f < 3; f++)698 cap->reserved[f] = 0;699 return 0;700}701 702static int _cx18_process_idx_data(struct cx18_buffer *buf,703 struct v4l2_enc_idx *idx)704{705 int consumed, remaining;706 struct v4l2_enc_idx_entry *e_idx;707 struct cx18_enc_idx_entry *e_buf;708 709 /* Frame type lookup: 1=I, 2=P, 4=B */710 static const int mapping[8] = {711 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,712 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1713 };714 715 /*716 * Assumption here is that a buf holds an integral number of717 * struct cx18_enc_idx_entry objects and is properly aligned.718 * This is enforced by the module options on IDX buffer sizes.719 */720 remaining = buf->bytesused - buf->readpos;721 consumed = 0;722 e_idx = &idx->entry[idx->entries];723 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];724 725 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&726 idx->entries < V4L2_ENC_IDX_ENTRIES) {727 728 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)729 | le32_to_cpu(e_buf->offset_low);730 731 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)732 | le32_to_cpu(e_buf->pts_low);733 734 e_idx->length = le32_to_cpu(e_buf->length);735 736 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];737 738 e_idx->reserved[0] = 0;739 e_idx->reserved[1] = 0;740 741 idx->entries++;742 e_idx = &idx->entry[idx->entries];743 e_buf++;744 745 remaining -= sizeof(struct cx18_enc_idx_entry);746 consumed += sizeof(struct cx18_enc_idx_entry);747 }748 749 /* Swallow any partial entries at the end, if there are any */750 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))751 consumed += remaining;752 753 buf->readpos += consumed;754 return consumed;755}756 757static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,758 struct v4l2_enc_idx *idx)759{760 if (s->type != CX18_ENC_STREAM_TYPE_IDX)761 return -EINVAL;762 763 if (mdl->curr_buf == NULL)764 mdl->curr_buf = list_first_entry(&mdl->buf_list,765 struct cx18_buffer, list);766 767 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {768 /*769 * For some reason we've exhausted the buffers, but the MDL770 * object still said some data was unread.771 * Fix that and bail out.772 */773 mdl->readpos = mdl->bytesused;774 return 0;775 }776 777 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {778 779 /* Skip any empty buffers in the MDL */780 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)781 continue;782 783 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);784 785 /* exit when MDL drained or request satisfied */786 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||787 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||788 mdl->readpos >= mdl->bytesused)789 break;790 }791 return 0;792}793 794static int cx18_g_enc_index(struct file *file, void *fh,795 struct v4l2_enc_idx *idx)796{797 struct cx18 *cx = fh2id(fh)->cx;798 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];799 s32 tmp;800 struct cx18_mdl *mdl;801 802 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */803 return -EINVAL;804 805 /* Compute the best case number of entries we can buffer */806 tmp = s->buffers -807 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;808 if (tmp <= 0)809 tmp = 1;810 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);811 812 /* Fill out the header of the return structure */813 idx->entries = 0;814 idx->entries_cap = tmp;815 memset(idx->reserved, 0, sizeof(idx->reserved));816 817 /* Pull IDX MDLs and buffers from q_full and populate the entries */818 do {819 mdl = cx18_dequeue(s, &s->q_full);820 if (mdl == NULL) /* No more IDX data right now */821 break;822 823 /* Extract the Index entry data from the MDL and buffers */824 cx18_process_idx_data(s, mdl, idx);825 if (mdl->readpos < mdl->bytesused) {826 /* We finished with data remaining, push the MDL back */827 cx18_push(s, mdl, &s->q_full);828 break;829 }830 831 /* We drained this MDL, schedule it to go to the firmware */832 cx18_enqueue(s, mdl, &s->q_free);833 834 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);835 836 /* Tell the work handler to send free IDX MDLs to the firmware */837 cx18_stream_load_fw_queue(s);838 return 0;839}840 841static int cx18_encoder_cmd(struct file *file, void *fh,842 struct v4l2_encoder_cmd *enc)843{844 struct cx18_open_id *id = fh2id(fh);845 struct cx18 *cx = id->cx;846 u32 h;847 848 switch (enc->cmd) {849 case V4L2_ENC_CMD_START:850 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");851 enc->flags = 0;852 return cx18_start_capture(id);853 854 case V4L2_ENC_CMD_STOP:855 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");856 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;857 cx18_stop_capture(&cx->streams[id->type],858 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);859 break;860 861 case V4L2_ENC_CMD_PAUSE:862 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");863 enc->flags = 0;864 if (!atomic_read(&cx->ana_capturing))865 return -EPERM;866 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))867 return 0;868 h = cx18_find_handle(cx);869 if (h == CX18_INVALID_TASK_HANDLE) {870 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n");871 return -EBADFD;872 }873 cx18_mute(cx);874 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);875 break;876 877 case V4L2_ENC_CMD_RESUME:878 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");879 enc->flags = 0;880 if (!atomic_read(&cx->ana_capturing))881 return -EPERM;882 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))883 return 0;884 h = cx18_find_handle(cx);885 if (h == CX18_INVALID_TASK_HANDLE) {886 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n");887 return -EBADFD;888 }889 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);890 cx18_unmute(cx);891 break;892 893 default:894 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);895 return -EINVAL;896 }897 return 0;898}899 900static int cx18_try_encoder_cmd(struct file *file, void *fh,901 struct v4l2_encoder_cmd *enc)902{903 struct cx18 *cx = fh2id(fh)->cx;904 905 switch (enc->cmd) {906 case V4L2_ENC_CMD_START:907 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");908 enc->flags = 0;909 break;910 911 case V4L2_ENC_CMD_STOP:912 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");913 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;914 break;915 916 case V4L2_ENC_CMD_PAUSE:917 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");918 enc->flags = 0;919 break;920 921 case V4L2_ENC_CMD_RESUME:922 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");923 enc->flags = 0;924 break;925 926 default:927 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);928 return -EINVAL;929 }930 return 0;931}932 933static int cx18_log_status(struct file *file, void *fh)934{935 struct cx18 *cx = fh2id(fh)->cx;936 struct v4l2_input vidin;937 struct v4l2_audio audin;938 int i;939 940 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);941 if (cx->hw_flags & CX18_HW_TVEEPROM) {942 struct tveeprom tv;943 944 cx18_read_eeprom(cx, &tv);945 }946 cx18_call_all(cx, core, log_status);947 cx18_get_input(cx, cx->active_input, &vidin);948 cx18_get_audio_input(cx, cx->audio_input, &audin);949 CX18_INFO("Video Input: %s\n", vidin.name);950 CX18_INFO("Audio Input: %s\n", audin.name);951 mutex_lock(&cx->gpio_lock);952 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",953 cx->gpio_dir, cx->gpio_val);954 mutex_unlock(&cx->gpio_lock);955 CX18_INFO("Tuner: %s\n",956 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");957 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);958 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);959 for (i = 0; i < CX18_MAX_STREAMS; i++) {960 struct cx18_stream *s = &cx->streams[i];961 962 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0)963 continue;964 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",965 s->name, s->s_flags,966 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100967 / s->buffers,968 (s->buffers * s->buf_size) / 1024, s->buffers);969 }970 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",971 (long long)cx->mpg_data_received,972 (long long)cx->vbi_data_inserted);973 return 0;974}975 976static long cx18_default(struct file *file, void *fh, bool valid_prio,977 unsigned int cmd, void *arg)978{979 struct cx18 *cx = fh2id(fh)->cx;980 981 switch (cmd) {982 case VIDIOC_INT_RESET: {983 u32 val = *(u32 *)arg;984 985 if ((val == 0) || (val & 0x01))986 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,987 (u32) CX18_GPIO_RESET_Z8F0811);988 break;989 }990 991 default:992 return -ENOTTY;993 }994 return 0;995}996 997static const struct v4l2_ioctl_ops cx18_ioctl_ops = {998 .vidioc_querycap = cx18_querycap,999 .vidioc_s_audio = cx18_s_audio,1000 .vidioc_g_audio = cx18_g_audio,1001 .vidioc_enumaudio = cx18_enumaudio,1002 .vidioc_enum_input = cx18_enum_input,1003 .vidioc_g_pixelaspect = cx18_g_pixelaspect,1004 .vidioc_g_selection = cx18_g_selection,1005 .vidioc_g_input = cx18_g_input,1006 .vidioc_s_input = cx18_s_input,1007 .vidioc_g_frequency = cx18_g_frequency,1008 .vidioc_s_frequency = cx18_s_frequency,1009 .vidioc_s_tuner = cx18_s_tuner,1010 .vidioc_g_tuner = cx18_g_tuner,1011 .vidioc_g_enc_index = cx18_g_enc_index,1012 .vidioc_g_std = cx18_g_std,1013 .vidioc_s_std = cx18_s_std,1014 .vidioc_log_status = cx18_log_status,1015 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,1016 .vidioc_encoder_cmd = cx18_encoder_cmd,1017 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,1018 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,1019 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,1020 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,1021 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,1022 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,1023 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,1024 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,1025 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,1026 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,1027 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,1028#ifdef CONFIG_VIDEO_ADV_DEBUG1029 .vidioc_g_register = cx18_g_register,1030 .vidioc_s_register = cx18_s_register,1031#endif1032 .vidioc_default = cx18_default,1033 1034 .vidioc_reqbufs = vb2_ioctl_reqbufs,1035 .vidioc_querybuf = vb2_ioctl_querybuf,1036 .vidioc_qbuf = vb2_ioctl_qbuf,1037 .vidioc_dqbuf = vb2_ioctl_dqbuf,1038 .vidioc_create_bufs = vb2_ioctl_create_bufs,1039 .vidioc_streamon = vb2_ioctl_streamon,1040 .vidioc_streamoff = vb2_ioctl_streamoff,1041 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,1042 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,1043 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,1044};1045 1046void cx18_set_funcs(struct video_device *vdev)1047{1048 vdev->ioctl_ops = &cx18_ioctl_ops;1049}1050