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