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path: root/drivers/media/pci/cx18/cx18-ioctl.c
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Diffstat (limited to 'drivers/media/pci/cx18/cx18-ioctl.c')
-rw-r--r--drivers/media/pci/cx18/cx18-ioctl.c1122
1 files changed, 1122 insertions, 0 deletions
diff --git a/drivers/media/pci/cx18/cx18-ioctl.c b/drivers/media/pci/cx18/cx18-ioctl.c
new file mode 100644
index 000000000..c8ba7841c
--- /dev/null
+++ b/drivers/media/pci/cx18/cx18-ioctl.c
@@ -0,0 +1,1122 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * cx18 ioctl system call
+ *
+ * Derived from ivtv-ioctl.c
+ *
+ * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
+ * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
+ */
+
+#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 <media/tveeprom.h>
+#include <media/v4l2-event.h>
+
+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 (BIT(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_subdev_format format = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ };
+ 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_NV12_16L16) {
+ 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 */
+ }
+
+ format.format.width = cx->cxhdl.width = w;
+ format.format.height = cx->cxhdl.height = h;
+ format.format.code = MEDIA_BUS_FMT_FIXED;
+ v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);
+ 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 *cx = id->cx;
+
+ strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
+ strscpy(vcap->card, cx->card_name, sizeof(vcap->card));
+ vcap->capabilities = cx->v4l2_cap | 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_g_pixelaspect(struct file *file, void *fh,
+ int type, struct v4l2_fract *f)
+{
+ struct cx18 *cx = fh2id(fh)->cx;
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ f->numerator = cx->is_50hz ? 54 : 11;
+ f->denominator = cx->is_50hz ? 59 : 10;
+ 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[] = {
+ {
+ .index = 0,
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ .description = "HM12 (YUV 4:1:1)",
+ .pixelformat = V4L2_PIX_FMT_NV12_16L16,
+ },
+ {
+ .index = 1,
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ .flags = V4L2_FMT_FLAG_COMPRESSED,
+ .description = "MPEG",
+ .pixelformat = V4L2_PIX_FMT_MPEG,
+ },
+ {
+ .index = 2,
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ .description = "UYVY 4:2:2",
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ },
+ };
+
+ 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)
+ strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
+ else
+ strscpy(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 */
+ static 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_g_pixelaspect = cx18_g_pixelaspect,
+ .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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 15:04:49 +0000