diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-controls.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-controls.c b/drivers/media/pci/ivtv/ivtv-controls.c new file mode 100644 index 000000000..a0b9a5a5c --- /dev/null +++ b/drivers/media/pci/ivtv/ivtv-controls.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + ioctl control functions + Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> + Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> + + */ + +#include "ivtv-driver.h" +#include "ivtv-ioctl.h" +#include "ivtv-controls.h" +#include "ivtv-mailbox.h" + +static int ivtv_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt) +{ + struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); + + /* First try to allocate sliced VBI buffers if needed. */ + if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) { + int i; + + for (i = 0; i < IVTV_VBI_FRAMES; i++) { + /* Yuck, hardcoded. Needs to be a define */ + itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL); + if (itv->vbi.sliced_mpeg_data[i] == NULL) { + while (--i >= 0) { + kfree(itv->vbi.sliced_mpeg_data[i]); + itv->vbi.sliced_mpeg_data[i] = NULL; + } + return -ENOMEM; + } + } + } + + itv->vbi.insert_mpeg = fmt; + + if (itv->vbi.insert_mpeg == 0) { + return 0; + } + /* Need sliced data for mpeg insertion */ + if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) { + if (itv->is_60hz) + itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525; + else + itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; + ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz); + } + return 0; +} + +static int ivtv_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val) +{ + struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); + int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; + struct v4l2_subdev_format format = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + }; + + /* fix videodecoder resolution */ + format.format.width = cxhdl->width / (is_mpeg1 ? 2 : 1); + format.format.height = cxhdl->height; + format.format.code = MEDIA_BUS_FMT_FIXED; + v4l2_subdev_call(itv->sd_video, pad, set_fmt, NULL, &format); + return 0; +} + +static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) +{ + static const u32 freqs[3] = { 44100, 48000, 32000 }; + struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); + + /* The audio clock of the digitizer must match the codec sample + rate otherwise you get some very strange effects. */ + if (idx < ARRAY_SIZE(freqs)) + ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); + return 0; +} + +static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) +{ + struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); + + itv->dualwatch_stereo_mode = val; + return 0; +} + +const struct cx2341x_handler_ops ivtv_cxhdl_ops = { + .s_audio_mode = ivtv_s_audio_mode, + .s_audio_sampling_freq = ivtv_s_audio_sampling_freq, + .s_video_encoding = ivtv_s_video_encoding, + .s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt, +}; + +int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame) +{ + u32 data[CX2341X_MBOX_MAX_DATA]; + + if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) { + *pts = (s64)((u64)itv->last_dec_timing[2] << 32) | + (u64)itv->last_dec_timing[1]; + *frame = itv->last_dec_timing[0]; + return 0; + } + *pts = 0; + *frame = 0; + if (atomic_read(&itv->decoding)) { + if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) { + IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n"); + return -EIO; + } + memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing)); + set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags); + *pts = (s64)((u64) data[2] << 32) | (u64) data[1]; + *frame = data[0]; + /*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/ + } + return 0; +} + +static int ivtv_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); + + switch (ctrl->id) { + /* V4L2_CID_MPEG_VIDEO_DEC_PTS and V4L2_CID_MPEG_VIDEO_DEC_FRAME + control cluster */ + case V4L2_CID_MPEG_VIDEO_DEC_PTS: + return ivtv_g_pts_frame(itv, itv->ctrl_pts->p_new.p_s64, + itv->ctrl_frame->p_new.p_s64); + } + return 0; +} + +static int ivtv_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); + + switch (ctrl->id) { + /* V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK and MULTILINGUAL_PLAYBACK + control cluster */ + case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: + itv->audio_stereo_mode = itv->ctrl_audio_playback->val - 1; + itv->audio_bilingual_mode = itv->ctrl_audio_multilingual_playback->val - 1; + ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); + break; + } + return 0; +} + +const struct v4l2_ctrl_ops ivtv_hdl_out_ops = { + .s_ctrl = ivtv_s_ctrl, + .g_volatile_ctrl = ivtv_g_volatile_ctrl, +}; |