forked from KolibriOS/kolibrios
214 lines
7.6 KiB
C
214 lines
7.6 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Christian König.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Christian König
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* Rafał Miłecki
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*/
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#include <drm/drmP.h>
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#include <drm/radeon_drm.h>
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#include "radeon.h"
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#include "radeon_asic.h"
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#include "evergreend.h"
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#include "atom.h"
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/*
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* update the N and CTS parameters for a given pixel clock rate
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*/
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static void evergreen_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t clock)
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{
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struct drm_device *dev = encoder->dev;
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struct radeon_device *rdev = dev->dev_private;
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struct radeon_hdmi_acr acr = r600_hdmi_acr(clock);
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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uint32_t offset = dig->afmt->offset;
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WREG32(HDMI_ACR_32_0 + offset, HDMI_ACR_CTS_32(acr.cts_32khz));
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WREG32(HDMI_ACR_32_1 + offset, acr.n_32khz);
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WREG32(HDMI_ACR_44_0 + offset, HDMI_ACR_CTS_44(acr.cts_44_1khz));
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WREG32(HDMI_ACR_44_1 + offset, acr.n_44_1khz);
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WREG32(HDMI_ACR_48_0 + offset, HDMI_ACR_CTS_48(acr.cts_48khz));
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WREG32(HDMI_ACR_48_1 + offset, acr.n_48khz);
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}
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/*
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* calculate the crc for a given info frame
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*/
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static void evergreen_hdmi_infoframe_checksum(uint8_t packetType,
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uint8_t versionNumber,
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uint8_t length,
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uint8_t *frame)
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{
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int i;
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frame[0] = packetType + versionNumber + length;
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for (i = 1; i <= length; i++)
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frame[0] += frame[i];
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frame[0] = 0x100 - frame[0];
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}
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/*
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* build a HDMI Video Info Frame
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*/
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static void evergreen_hdmi_videoinfoframe(
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struct drm_encoder *encoder,
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uint8_t color_format,
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int active_information_present,
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uint8_t active_format_aspect_ratio,
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uint8_t scan_information,
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uint8_t colorimetry,
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uint8_t ex_colorimetry,
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uint8_t quantization,
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int ITC,
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uint8_t picture_aspect_ratio,
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uint8_t video_format_identification,
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uint8_t pixel_repetition,
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uint8_t non_uniform_picture_scaling,
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uint8_t bar_info_data_valid,
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uint16_t top_bar,
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uint16_t bottom_bar,
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uint16_t left_bar,
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uint16_t right_bar
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)
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{
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struct drm_device *dev = encoder->dev;
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struct radeon_device *rdev = dev->dev_private;
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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uint32_t offset = dig->afmt->offset;
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uint8_t frame[14];
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frame[0x0] = 0;
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frame[0x1] =
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(scan_information & 0x3) |
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((bar_info_data_valid & 0x3) << 2) |
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((active_information_present & 0x1) << 4) |
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((color_format & 0x3) << 5);
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frame[0x2] =
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(active_format_aspect_ratio & 0xF) |
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((picture_aspect_ratio & 0x3) << 4) |
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((colorimetry & 0x3) << 6);
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frame[0x3] =
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(non_uniform_picture_scaling & 0x3) |
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((quantization & 0x3) << 2) |
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((ex_colorimetry & 0x7) << 4) |
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((ITC & 0x1) << 7);
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frame[0x4] = (video_format_identification & 0x7F);
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frame[0x5] = (pixel_repetition & 0xF);
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frame[0x6] = (top_bar & 0xFF);
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frame[0x7] = (top_bar >> 8);
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frame[0x8] = (bottom_bar & 0xFF);
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frame[0x9] = (bottom_bar >> 8);
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frame[0xA] = (left_bar & 0xFF);
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frame[0xB] = (left_bar >> 8);
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frame[0xC] = (right_bar & 0xFF);
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frame[0xD] = (right_bar >> 8);
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evergreen_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame);
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/* Our header values (type, version, length) should be alright, Intel
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* is using the same. Checksum function also seems to be OK, it works
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* fine for audio infoframe. However calculated value is always lower
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* by 2 in comparison to fglrx. It breaks displaying anything in case
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* of TVs that strictly check the checksum. Hack it manually here to
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* workaround this issue. */
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frame[0x0] += 2;
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WREG32(AFMT_AVI_INFO0 + offset,
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frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
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WREG32(AFMT_AVI_INFO1 + offset,
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frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
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WREG32(AFMT_AVI_INFO2 + offset,
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frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
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WREG32(AFMT_AVI_INFO3 + offset,
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frame[0xC] | (frame[0xD] << 8));
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}
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/*
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* update the info frames with the data from the current display mode
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*/
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void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mode)
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{
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struct drm_device *dev = encoder->dev;
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struct radeon_device *rdev = dev->dev_private;
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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uint32_t offset;
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/* Silent, r600_hdmi_enable will raise WARN for us */
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if (!dig->afmt->enabled)
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return;
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offset = dig->afmt->offset;
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// r600_audio_set_clock(encoder, mode->clock);
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WREG32(HDMI_VBI_PACKET_CONTROL + offset,
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HDMI_NULL_SEND); /* send null packets when required */
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WREG32(AFMT_AUDIO_CRC_CONTROL + offset, 0x1000);
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WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
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HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
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HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
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WREG32(AFMT_AUDIO_PACKET_CONTROL + offset,
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AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */
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AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
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WREG32(HDMI_ACR_PACKET_CONTROL + offset,
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HDMI_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */
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HDMI_ACR_SOURCE); /* select SW CTS value */
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WREG32(HDMI_VBI_PACKET_CONTROL + offset,
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HDMI_NULL_SEND | /* send null packets when required */
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HDMI_GC_SEND | /* send general control packets */
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HDMI_GC_CONT); /* send general control packets every frame */
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WREG32(HDMI_INFOFRAME_CONTROL0 + offset,
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HDMI_AVI_INFO_SEND | /* enable AVI info frames */
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HDMI_AVI_INFO_CONT | /* send AVI info frames every frame/field */
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HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
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HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
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WREG32(AFMT_INFOFRAME_CONTROL0 + offset,
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AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */
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WREG32(HDMI_INFOFRAME_CONTROL1 + offset,
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HDMI_AVI_INFO_LINE(2) | /* anything other than 0 */
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HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
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WREG32(HDMI_GC + offset, 0); /* unset HDMI_GC_AVMUTE */
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evergreen_hdmi_videoinfoframe(encoder, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0);
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evergreen_hdmi_update_ACR(encoder, mode->clock);
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/* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */
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WREG32(AFMT_RAMP_CONTROL0 + offset, 0x00FFFFFF);
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WREG32(AFMT_RAMP_CONTROL1 + offset, 0x007FFFFF);
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WREG32(AFMT_RAMP_CONTROL2 + offset, 0x00000001);
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WREG32(AFMT_RAMP_CONTROL3 + offset, 0x00000001);
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}
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