From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/media/pci/cx18/cx18-ioctl.c | 1130 +++++++++++++++++++++++++++++++++++ 1 file changed, 1130 insertions(+) create mode 100644 drivers/media/pci/cx18/cx18-ioctl.c (limited to 'drivers/media/pci/cx18/cx18-ioctl.c') diff --git a/drivers/media/pci/cx18/cx18-ioctl.c b/drivers/media/pci/cx18/cx18-ioctl.c new file mode 100644 index 000000000..79aee30d5 --- /dev/null +++ b/drivers/media/pci/cx18/cx18-ioctl.c @@ -0,0 +1,1130 @@ +/* + * cx18 ioctl system call + * + * Derived from ivtv-ioctl.c + * + * Copyright (C) 2007 Hans Verkuil + * Copyright (C) 2008 Andy Walls + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307 USA + */ + +#include "cx18-driver.h" +#include "cx18-io.h" +#include "cx18-version.h" +#include "cx18-mailbox.h" +#include "cx18-i2c.h" +#include "cx18-queue.h" +#include "cx18-fileops.h" +#include "cx18-vbi.h" +#include "cx18-audio.h" +#include "cx18-video.h" +#include "cx18-streams.h" +#include "cx18-ioctl.h" +#include "cx18-gpio.h" +#include "cx18-controls.h" +#include "cx18-cards.h" +#include "cx18-av-core.h" +#include +#include + +u16 cx18_service2vbi(int type) +{ + switch (type) { + case V4L2_SLICED_TELETEXT_B: + return CX18_SLICED_TYPE_TELETEXT_B; + case V4L2_SLICED_CAPTION_525: + return CX18_SLICED_TYPE_CAPTION_525; + case V4L2_SLICED_WSS_625: + return CX18_SLICED_TYPE_WSS_625; + case V4L2_SLICED_VPS: + return CX18_SLICED_TYPE_VPS; + default: + return 0; + } +} + +/* Check if VBI services are allowed on the (field, line) for the video std */ +static int valid_service_line(int field, int line, int is_pal) +{ + return (is_pal && line >= 6 && + ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || + (!is_pal && line >= 10 && line < 22); +} + +/* + * For a (field, line, std) and inbound potential set of services for that line, + * return the first valid service of those passed in the incoming set for that + * line in priority order: + * CC, VPS, or WSS over TELETEXT for well known lines + * TELETEXT, before VPS, before CC, before WSS, for other lines + */ +static u16 select_service_from_set(int field, int line, u16 set, int is_pal) +{ + u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); + int i; + + set = set & valid_set; + if (set == 0 || !valid_service_line(field, line, is_pal)) + return 0; + if (!is_pal) { + if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) + return V4L2_SLICED_CAPTION_525; + } else { + if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) + return V4L2_SLICED_VPS; + if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) + return V4L2_SLICED_WSS_625; + if (line == 23) + return 0; + } + for (i = 0; i < 32; i++) { + if ((1 << i) & set) + return 1 << i; + } + return 0; +} + +/* + * Expand the service_set of *fmt into valid service_lines for the std, + * and clear the passed in fmt->service_set + */ +void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) +{ + u16 set = fmt->service_set; + int f, l; + + fmt->service_set = 0; + for (f = 0; f < 2; f++) { + for (l = 0; l < 24; l++) + fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); + } +} + +/* + * Sanitize the service_lines in *fmt per the video std, and return 1 + * if any service_line is left as valid after santization + */ +static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) +{ + int f, l; + u16 set = 0; + + for (f = 0; f < 2; f++) { + for (l = 0; l < 24; l++) { + fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); + set |= fmt->service_lines[f][l]; + } + } + return set != 0; +} + +/* Compute the service_set from the assumed valid service_lines of *fmt */ +u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) +{ + int f, l; + u16 set = 0; + + for (f = 0; f < 2; f++) { + for (l = 0; l < 24; l++) + set |= fmt->service_lines[f][l]; + } + return set; +} + +static int cx18_g_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; + + pixfmt->width = cx->cxhdl.width; + pixfmt->height = cx->cxhdl.height; + pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; + pixfmt->field = V4L2_FIELD_INTERLACED; + if (id->type == CX18_ENC_STREAM_TYPE_YUV) { + pixfmt->pixelformat = s->pixelformat; + pixfmt->sizeimage = s->vb_bytes_per_frame; + pixfmt->bytesperline = s->vb_bytes_per_line; + } else { + pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; + pixfmt->sizeimage = 128 * 1024; + pixfmt->bytesperline = 0; + } + return 0; +} + +static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18 *cx = fh2id(fh)->cx; + struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; + + vbifmt->sampling_rate = 27000000; + vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ + vbifmt->samples_per_line = vbi_active_samples - 4; + vbifmt->sample_format = V4L2_PIX_FMT_GREY; + vbifmt->start[0] = cx->vbi.start[0]; + vbifmt->start[1] = cx->vbi.start[1]; + vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; + vbifmt->flags = 0; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + return 0; +} + +static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18 *cx = fh2id(fh)->cx; + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + + /* sane, V4L2 spec compliant, defaults */ + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); + vbifmt->service_set = 0; + + /* + * Fetch the configured service_lines and total service_set from the + * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in + * fmt->fmt.sliced under valid calling conditions + */ + if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) + return -EINVAL; + + vbifmt->service_set = cx18_get_service_set(vbifmt); + return 0; +} + +static int cx18_try_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + int w = fmt->fmt.pix.width; + int h = fmt->fmt.pix.height; + int min_h = 2; + + w = min(w, 720); + w = max(w, 2); + if (id->type == CX18_ENC_STREAM_TYPE_YUV) { + /* YUV height must be a multiple of 32 */ + h &= ~0x1f; + min_h = 32; + } + h = min(h, cx->is_50hz ? 576 : 480); + h = max(h, min_h); + + fmt->fmt.pix.width = w; + fmt->fmt.pix.height = h; + return 0; +} + +static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + return cx18_g_fmt_vbi_cap(file, fh, fmt); +} + +static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18 *cx = fh2id(fh)->cx; + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + + vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + + /* If given a service set, expand it validly & clear passed in set */ + if (vbifmt->service_set) + cx18_expand_service_set(vbifmt, cx->is_50hz); + /* Sanitize the service_lines, and compute the new set if any valid */ + if (check_service_set(vbifmt, cx->is_50hz)) + vbifmt->service_set = cx18_get_service_set(vbifmt); + return 0; +} + +static int cx18_s_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + struct v4l2_mbus_framefmt mbus_fmt; + struct cx18_stream *s = &cx->streams[id->type]; + int ret; + int w, h; + + ret = cx18_try_fmt_vid_cap(file, fh, fmt); + if (ret) + return ret; + w = fmt->fmt.pix.width; + h = fmt->fmt.pix.height; + + if (cx->cxhdl.width == w && cx->cxhdl.height == h && + s->pixelformat == fmt->fmt.pix.pixelformat) + return 0; + + if (atomic_read(&cx->ana_capturing) > 0) + return -EBUSY; + + s->pixelformat = fmt->fmt.pix.pixelformat; + /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) + UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ + if (s->pixelformat == V4L2_PIX_FMT_HM12) { + s->vb_bytes_per_frame = h * 720 * 3 / 2; + s->vb_bytes_per_line = 720; /* First plane */ + } else { + s->vb_bytes_per_frame = h * 720 * 2; + s->vb_bytes_per_line = 1440; /* Packed */ + } + + mbus_fmt.width = cx->cxhdl.width = w; + mbus_fmt.height = cx->cxhdl.height = h; + mbus_fmt.code = MEDIA_BUS_FMT_FIXED; + v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt); + return cx18_g_fmt_vid_cap(file, fh, fmt); +} + +static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + int ret; + + /* + * Changing the Encoder's Raw VBI parameters won't have any effect + * if any analog capture is ongoing + */ + if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) + return -EBUSY; + + /* + * Set the digitizer registers for raw active VBI. + * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid + * calling conditions + */ + ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); + if (ret) + return ret; + + /* Store our new v4l2 (non-)sliced VBI state */ + cx->vbi.sliced_in->service_set = 0; + cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; + + return cx18_g_fmt_vbi_cap(file, fh, fmt); +} + +static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + int ret; + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + + cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); + + /* + * Changing the Encoder's Raw VBI parameters won't have any effect + * if any analog capture is ongoing + */ + if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) + return -EBUSY; + + /* + * Set the service_lines requested in the digitizer/slicer registers. + * Note, cx18_av_vbi() wipes some "impossible" service lines in the + * passed in fmt->fmt.sliced under valid calling conditions + */ + ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); + if (ret) + return ret; + /* Store our current v4l2 sliced VBI settings */ + cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; + memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int cx18_g_register(struct file *file, void *fh, + struct v4l2_dbg_register *reg) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (reg->reg & 0x3) + return -EINVAL; + if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) + return -EINVAL; + reg->size = 4; + reg->val = cx18_read_enc(cx, reg->reg); + return 0; +} + +static int cx18_s_register(struct file *file, void *fh, + const struct v4l2_dbg_register *reg) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (reg->reg & 0x3) + return -EINVAL; + if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) + return -EINVAL; + cx18_write_enc(cx, reg->val, reg->reg); + return 0; +} +#endif + +static int cx18_querycap(struct file *file, void *fh, + struct v4l2_capability *vcap) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18_stream *s = video_drvdata(file); + struct cx18 *cx = id->cx; + + strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); + strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); + snprintf(vcap->bus_info, sizeof(vcap->bus_info), + "PCI:%s", pci_name(cx->pci_dev)); + vcap->capabilities = cx->v4l2_cap; /* capabilities */ + vcap->device_caps = s->v4l2_dev_caps; /* device capabilities */ + vcap->capabilities |= V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct cx18 *cx = fh2id(fh)->cx; + + return cx18_get_audio_input(cx, vin->index, vin); +} + +static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct cx18 *cx = fh2id(fh)->cx; + + vin->index = cx->audio_input; + return cx18_get_audio_input(cx, vin->index, vin); +} + +static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (vout->index >= cx->nof_audio_inputs) + return -EINVAL; + cx->audio_input = vout->index; + cx18_audio_set_io(cx); + return 0; +} + +static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + struct cx18 *cx = fh2id(fh)->cx; + + /* set it to defaults from our table */ + return cx18_get_input(cx, vin->index, vin); +} + +static int cx18_cropcap(struct file *file, void *fh, + struct v4l2_cropcap *cropcap) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10; + cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11; + return 0; +} + +static int cx18_g_selection(struct file *file, void *fh, + struct v4l2_selection *sel) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.top = sel->r.left = 0; + sel->r.width = 720; + sel->r.height = cx->is_50hz ? 576 : 480; + break; + default: + return -EINVAL; + } + return 0; +} + +static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_fmtdesc *fmt) +{ + static const struct v4l2_fmtdesc formats[] = { + { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, + "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } + }, + { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, + "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } + }, + { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, + "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } + }, + }; + + if (fmt->index > ARRAY_SIZE(formats) - 1) + return -EINVAL; + *fmt = formats[fmt->index]; + return 0; +} + +static int cx18_g_input(struct file *file, void *fh, unsigned int *i) +{ + struct cx18 *cx = fh2id(fh)->cx; + + *i = cx->active_input; + return 0; +} + +int cx18_s_input(struct file *file, void *fh, unsigned int inp) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + v4l2_std_id std = V4L2_STD_ALL; + const struct cx18_card_video_input *card_input = + cx->card->video_inputs + inp; + + if (inp >= cx->nof_inputs) + return -EINVAL; + + if (inp == cx->active_input) { + CX18_DEBUG_INFO("Input unchanged\n"); + return 0; + } + + CX18_DEBUG_INFO("Changing input from %d to %d\n", + cx->active_input, inp); + + cx->active_input = inp; + /* Set the audio input to whatever is appropriate for the input type. */ + cx->audio_input = cx->card->video_inputs[inp].audio_index; + if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) + std = cx->tuner_std; + cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; + cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; + cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; + + /* prevent others from messing with the streams until + we're finished changing inputs. */ + cx18_mute(cx); + cx18_video_set_io(cx); + cx18_audio_set_io(cx); + cx18_unmute(cx); + return 0; +} + +static int cx18_g_frequency(struct file *file, void *fh, + struct v4l2_frequency *vf) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (vf->tuner != 0) + return -EINVAL; + + cx18_call_all(cx, tuner, g_frequency, vf); + return 0; +} + +int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + + if (vf->tuner != 0) + return -EINVAL; + + cx18_mute(cx); + CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); + cx18_call_all(cx, tuner, s_frequency, vf); + cx18_unmute(cx); + return 0; +} + +static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct cx18 *cx = fh2id(fh)->cx; + + *std = cx->std; + return 0; +} + +int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + + if ((std & V4L2_STD_ALL) == 0) + return -EINVAL; + + if (std == cx->std) + return 0; + + if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || + atomic_read(&cx->ana_capturing) > 0) { + /* Switching standard would turn off the radio or mess + with already running streams, prevent that by + returning EBUSY. */ + return -EBUSY; + } + + cx->std = std; + cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; + cx->is_50hz = !cx->is_60hz; + cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); + cx->cxhdl.width = 720; + cx->cxhdl.height = cx->is_50hz ? 576 : 480; + cx->vbi.count = cx->is_50hz ? 18 : 12; + cx->vbi.start[0] = cx->is_50hz ? 6 : 10; + cx->vbi.start[1] = cx->is_50hz ? 318 : 273; + CX18_DEBUG_INFO("Switching standard to %llx.\n", + (unsigned long long) cx->std); + + /* Tuner */ + cx18_call_all(cx, video, s_std, cx->std); + return 0; +} + +static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + + if (vt->index != 0) + return -EINVAL; + + cx18_call_all(cx, tuner, s_tuner, vt); + return 0; +} + +static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct cx18 *cx = fh2id(fh)->cx; + + if (vt->index != 0) + return -EINVAL; + + cx18_call_all(cx, tuner, g_tuner, vt); + + if (vt->type == V4L2_TUNER_RADIO) + strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); + else + strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); + return 0; +} + +static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_sliced_vbi_cap *cap) +{ + struct cx18 *cx = fh2id(fh)->cx; + int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; + int f, l; + + if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) + return -EINVAL; + + cap->service_set = 0; + for (f = 0; f < 2; f++) { + for (l = 0; l < 24; l++) { + if (valid_service_line(f, l, cx->is_50hz)) { + /* + * We can find all v4l2 supported vbi services + * for the standard, on a valid line for the std + */ + cap->service_lines[f][l] = set; + cap->service_set |= set; + } else + cap->service_lines[f][l] = 0; + } + } + for (f = 0; f < 3; f++) + cap->reserved[f] = 0; + return 0; +} + +static int _cx18_process_idx_data(struct cx18_buffer *buf, + struct v4l2_enc_idx *idx) +{ + int consumed, remaining; + struct v4l2_enc_idx_entry *e_idx; + struct cx18_enc_idx_entry *e_buf; + + /* Frame type lookup: 1=I, 2=P, 4=B */ + const int mapping[8] = { + -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, + -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 + }; + + /* + * Assumption here is that a buf holds an integral number of + * struct cx18_enc_idx_entry objects and is properly aligned. + * This is enforced by the module options on IDX buffer sizes. + */ + remaining = buf->bytesused - buf->readpos; + consumed = 0; + e_idx = &idx->entry[idx->entries]; + e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; + + while (remaining >= sizeof(struct cx18_enc_idx_entry) && + idx->entries < V4L2_ENC_IDX_ENTRIES) { + + e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) + | le32_to_cpu(e_buf->offset_low); + + e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) + | le32_to_cpu(e_buf->pts_low); + + e_idx->length = le32_to_cpu(e_buf->length); + + e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; + + e_idx->reserved[0] = 0; + e_idx->reserved[1] = 0; + + idx->entries++; + e_idx = &idx->entry[idx->entries]; + e_buf++; + + remaining -= sizeof(struct cx18_enc_idx_entry); + consumed += sizeof(struct cx18_enc_idx_entry); + } + + /* Swallow any partial entries at the end, if there are any */ + if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) + consumed += remaining; + + buf->readpos += consumed; + return consumed; +} + +static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, + struct v4l2_enc_idx *idx) +{ + if (s->type != CX18_ENC_STREAM_TYPE_IDX) + return -EINVAL; + + if (mdl->curr_buf == NULL) + mdl->curr_buf = list_first_entry(&mdl->buf_list, + struct cx18_buffer, list); + + if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { + /* + * For some reason we've exhausted the buffers, but the MDL + * object still said some data was unread. + * Fix that and bail out. + */ + mdl->readpos = mdl->bytesused; + return 0; + } + + list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { + + /* Skip any empty buffers in the MDL */ + if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) + continue; + + mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); + + /* exit when MDL drained or request satisfied */ + if (idx->entries >= V4L2_ENC_IDX_ENTRIES || + mdl->curr_buf->readpos < mdl->curr_buf->bytesused || + mdl->readpos >= mdl->bytesused) + break; + } + return 0; +} + +static int cx18_g_enc_index(struct file *file, void *fh, + struct v4l2_enc_idx *idx) +{ + struct cx18 *cx = fh2id(fh)->cx; + struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; + s32 tmp; + struct cx18_mdl *mdl; + + if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ + return -EINVAL; + + /* Compute the best case number of entries we can buffer */ + tmp = s->buffers - + s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; + if (tmp <= 0) + tmp = 1; + tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); + + /* Fill out the header of the return structure */ + idx->entries = 0; + idx->entries_cap = tmp; + memset(idx->reserved, 0, sizeof(idx->reserved)); + + /* Pull IDX MDLs and buffers from q_full and populate the entries */ + do { + mdl = cx18_dequeue(s, &s->q_full); + if (mdl == NULL) /* No more IDX data right now */ + break; + + /* Extract the Index entry data from the MDL and buffers */ + cx18_process_idx_data(s, mdl, idx); + if (mdl->readpos < mdl->bytesused) { + /* We finished with data remaining, push the MDL back */ + cx18_push(s, mdl, &s->q_full); + break; + } + + /* We drained this MDL, schedule it to go to the firmware */ + cx18_enqueue(s, mdl, &s->q_free); + + } while (idx->entries < V4L2_ENC_IDX_ENTRIES); + + /* Tell the work handler to send free IDX MDLs to the firmware */ + cx18_stream_load_fw_queue(s); + return 0; +} + +static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) +{ + struct videobuf_queue *q = NULL; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + switch (s->vb_type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + q = &s->vbuf_q; + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + break; + default: + break; + } + return q; +} + +static int cx18_streamon(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + /* Start the hardware only if we're the video device */ + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + if (id->type != CX18_ENC_STREAM_TYPE_YUV) + return -EINVAL; + + /* Establish a buffer timeout */ + mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); + + return videobuf_streamon(cx18_vb_queue(id)); +} + +static int cx18_streamoff(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + /* Start the hardware only if we're the video device */ + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + if (id->type != CX18_ENC_STREAM_TYPE_YUV) + return -EINVAL; + + return videobuf_streamoff(cx18_vb_queue(id)); +} + +static int cx18_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *rb) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + return videobuf_reqbufs(cx18_vb_queue(id), rb); +} + +static int cx18_querybuf(struct file *file, void *priv, + struct v4l2_buffer *b) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + return videobuf_querybuf(cx18_vb_queue(id), b); +} + +static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + return videobuf_qbuf(cx18_vb_queue(id), b); +} + +static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) +{ + struct cx18_open_id *id = file->private_data; + struct cx18 *cx = id->cx; + struct cx18_stream *s = &cx->streams[id->type]; + + if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) + return -EINVAL; + + return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); +} + +static int cx18_encoder_cmd(struct file *file, void *fh, + struct v4l2_encoder_cmd *enc) +{ + struct cx18_open_id *id = fh2id(fh); + struct cx18 *cx = id->cx; + u32 h; + + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; + return cx18_start_capture(id); + + case V4L2_ENC_CMD_STOP: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + cx18_stop_capture(id, + enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); + break; + + case V4L2_ENC_CMD_PAUSE: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + if (!atomic_read(&cx->ana_capturing)) + return -EPERM; + if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) + return 0; + h = cx18_find_handle(cx); + if (h == CX18_INVALID_TASK_HANDLE) { + CX18_ERR("Can't find valid task handle for " + "V4L2_ENC_CMD_PAUSE\n"); + return -EBADFD; + } + cx18_mute(cx); + cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); + break; + + case V4L2_ENC_CMD_RESUME: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; + if (!atomic_read(&cx->ana_capturing)) + return -EPERM; + if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) + return 0; + h = cx18_find_handle(cx); + if (h == CX18_INVALID_TASK_HANDLE) { + CX18_ERR("Can't find valid task handle for " + "V4L2_ENC_CMD_RESUME\n"); + return -EBADFD; + } + cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); + cx18_unmute(cx); + break; + + default: + CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); + return -EINVAL; + } + return 0; +} + +static int cx18_try_encoder_cmd(struct file *file, void *fh, + struct v4l2_encoder_cmd *enc) +{ + struct cx18 *cx = fh2id(fh)->cx; + + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; + break; + + case V4L2_ENC_CMD_STOP: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + break; + + case V4L2_ENC_CMD_PAUSE: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + break; + + case V4L2_ENC_CMD_RESUME: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; + break; + + default: + CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); + return -EINVAL; + } + return 0; +} + +static int cx18_log_status(struct file *file, void *fh) +{ + struct cx18 *cx = fh2id(fh)->cx; + struct v4l2_input vidin; + struct v4l2_audio audin; + int i; + + CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); + if (cx->hw_flags & CX18_HW_TVEEPROM) { + struct tveeprom tv; + + cx18_read_eeprom(cx, &tv); + } + cx18_call_all(cx, core, log_status); + cx18_get_input(cx, cx->active_input, &vidin); + cx18_get_audio_input(cx, cx->audio_input, &audin); + CX18_INFO("Video Input: %s\n", vidin.name); + CX18_INFO("Audio Input: %s\n", audin.name); + mutex_lock(&cx->gpio_lock); + CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", + cx->gpio_dir, cx->gpio_val); + mutex_unlock(&cx->gpio_lock); + CX18_INFO("Tuner: %s\n", + test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); + v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); + CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); + for (i = 0; i < CX18_MAX_STREAMS; i++) { + struct cx18_stream *s = &cx->streams[i]; + + if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) + continue; + CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", + s->name, s->s_flags, + atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 + / s->buffers, + (s->buffers * s->buf_size) / 1024, s->buffers); + } + CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", + (long long)cx->mpg_data_received, + (long long)cx->vbi_data_inserted); + return 0; +} + +static long cx18_default(struct file *file, void *fh, bool valid_prio, + unsigned int cmd, void *arg) +{ + struct cx18 *cx = fh2id(fh)->cx; + + switch (cmd) { + case VIDIOC_INT_RESET: { + u32 val = *(u32 *)arg; + + if ((val == 0) || (val & 0x01)) + cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, + (u32) CX18_GPIO_RESET_Z8F0811); + break; + } + + default: + return -ENOTTY; + } + return 0; +} + +static const struct v4l2_ioctl_ops cx18_ioctl_ops = { + .vidioc_querycap = cx18_querycap, + .vidioc_s_audio = cx18_s_audio, + .vidioc_g_audio = cx18_g_audio, + .vidioc_enumaudio = cx18_enumaudio, + .vidioc_enum_input = cx18_enum_input, + .vidioc_cropcap = cx18_cropcap, + .vidioc_g_selection = cx18_g_selection, + .vidioc_g_input = cx18_g_input, + .vidioc_s_input = cx18_s_input, + .vidioc_g_frequency = cx18_g_frequency, + .vidioc_s_frequency = cx18_s_frequency, + .vidioc_s_tuner = cx18_s_tuner, + .vidioc_g_tuner = cx18_g_tuner, + .vidioc_g_enc_index = cx18_g_enc_index, + .vidioc_g_std = cx18_g_std, + .vidioc_s_std = cx18_s_std, + .vidioc_log_status = cx18_log_status, + .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, + .vidioc_encoder_cmd = cx18_encoder_cmd, + .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, + .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, + .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, + .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, + .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, + .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, + .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, + .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, + .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, + .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, + .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .vidioc_g_register = cx18_g_register, + .vidioc_s_register = cx18_s_register, +#endif + .vidioc_default = cx18_default, + .vidioc_streamon = cx18_streamon, + .vidioc_streamoff = cx18_streamoff, + .vidioc_reqbufs = cx18_reqbufs, + .vidioc_querybuf = cx18_querybuf, + .vidioc_qbuf = cx18_qbuf, + .vidioc_dqbuf = cx18_dqbuf, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +void cx18_set_funcs(struct video_device *vdev) +{ + vdev->ioctl_ops = &cx18_ioctl_ops; +} -- cgit v1.2.3-54-g00ecf