mirror of https://gitee.com/openkylin/linux.git
586 lines
17 KiB
C
586 lines
17 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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*/
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#include "drmP.h"
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#include "radeon_drm.h"
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#include "radeon.h"
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#include "atom.h"
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/*
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* HDMI color format
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*/
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enum r600_hdmi_color_format {
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RGB = 0,
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YCC_422 = 1,
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YCC_444 = 2
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};
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/*
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* IEC60958 status bits
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*/
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enum r600_hdmi_iec_status_bits {
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AUDIO_STATUS_DIG_ENABLE = 0x01,
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AUDIO_STATUS_V = 0x02,
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AUDIO_STATUS_VCFG = 0x04,
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AUDIO_STATUS_EMPHASIS = 0x08,
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AUDIO_STATUS_COPYRIGHT = 0x10,
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AUDIO_STATUS_NONAUDIO = 0x20,
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AUDIO_STATUS_PROFESSIONAL = 0x40,
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AUDIO_STATUS_LEVEL = 0x80
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};
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struct {
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uint32_t Clock;
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int N_32kHz;
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int CTS_32kHz;
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int N_44_1kHz;
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int CTS_44_1kHz;
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int N_48kHz;
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int CTS_48kHz;
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} r600_hdmi_ACR[] = {
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/* 32kHz 44.1kHz 48kHz */
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/* Clock N CTS N CTS N CTS */
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{ 25174, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */
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{ 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */
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{ 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */
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{ 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */
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{ 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */
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{ 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */
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{ 74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */
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{ 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */
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{ 148351, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */
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{ 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */
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{ 0, 4096, 0, 6272, 0, 6144, 0 } /* Other */
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};
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/*
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* calculate CTS value if it's not found in the table
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*/
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static void r600_hdmi_calc_CTS(uint32_t clock, int *CTS, int N, int freq)
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{
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if (*CTS == 0)
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*CTS = clock * N / (128 * freq) * 1000;
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DRM_DEBUG("Using ACR timing N=%d CTS=%d for frequency %d\n",
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N, *CTS, freq);
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}
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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 r600_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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
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int CTS;
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int N;
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int i;
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for (i = 0; r600_hdmi_ACR[i].Clock != clock && r600_hdmi_ACR[i].Clock != 0; i++);
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CTS = r600_hdmi_ACR[i].CTS_32kHz;
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N = r600_hdmi_ACR[i].N_32kHz;
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r600_hdmi_calc_CTS(clock, &CTS, N, 32000);
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WREG32(offset+R600_HDMI_32kHz_CTS, CTS << 12);
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WREG32(offset+R600_HDMI_32kHz_N, N);
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CTS = r600_hdmi_ACR[i].CTS_44_1kHz;
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N = r600_hdmi_ACR[i].N_44_1kHz;
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r600_hdmi_calc_CTS(clock, &CTS, N, 44100);
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WREG32(offset+R600_HDMI_44_1kHz_CTS, CTS << 12);
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WREG32(offset+R600_HDMI_44_1kHz_N, N);
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CTS = r600_hdmi_ACR[i].CTS_48kHz;
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N = r600_hdmi_ACR[i].N_48kHz;
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r600_hdmi_calc_CTS(clock, &CTS, N, 48000);
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WREG32(offset+R600_HDMI_48kHz_CTS, CTS << 12);
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WREG32(offset+R600_HDMI_48kHz_N, N);
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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 r600_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 r600_hdmi_videoinfoframe(
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struct drm_encoder *encoder,
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enum r600_hdmi_color_format 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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_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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r600_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame);
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WREG32(offset+R600_HDMI_VIDEOINFOFRAME_0,
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frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
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WREG32(offset+R600_HDMI_VIDEOINFOFRAME_1,
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frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
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WREG32(offset+R600_HDMI_VIDEOINFOFRAME_2,
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frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
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WREG32(offset+R600_HDMI_VIDEOINFOFRAME_3,
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frame[0xC] | (frame[0xD] << 8));
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}
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/*
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* build a Audio Info Frame
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*/
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static void r600_hdmi_audioinfoframe(
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struct drm_encoder *encoder,
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uint8_t channel_count,
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uint8_t coding_type,
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uint8_t sample_size,
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uint8_t sample_frequency,
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uint8_t format,
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uint8_t channel_allocation,
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uint8_t level_shift,
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int downmix_inhibit
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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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
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uint8_t frame[11];
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frame[0x0] = 0;
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frame[0x1] = (channel_count & 0x7) | ((coding_type & 0xF) << 4);
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frame[0x2] = (sample_size & 0x3) | ((sample_frequency & 0x7) << 2);
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frame[0x3] = format;
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frame[0x4] = channel_allocation;
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frame[0x5] = ((level_shift & 0xF) << 3) | ((downmix_inhibit & 0x1) << 7);
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frame[0x6] = 0;
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frame[0x7] = 0;
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frame[0x8] = 0;
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frame[0x9] = 0;
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frame[0xA] = 0;
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r600_hdmi_infoframe_checksum(0x84, 0x01, 0x0A, frame);
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WREG32(offset+R600_HDMI_AUDIOINFOFRAME_0,
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frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
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WREG32(offset+R600_HDMI_AUDIOINFOFRAME_1,
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frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x8] << 24));
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}
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/*
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* test if audio buffer is filled enough to start playing
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*/
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static int r600_hdmi_is_audio_buffer_filled(struct drm_encoder *encoder)
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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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
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return (RREG32(offset+R600_HDMI_STATUS) & 0x10) != 0;
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}
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/*
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* have buffer status changed since last call?
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*/
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int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder)
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{
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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int status, result;
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if (!radeon_encoder->hdmi_offset)
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return 0;
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status = r600_hdmi_is_audio_buffer_filled(encoder);
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result = radeon_encoder->hdmi_buffer_status != status;
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radeon_encoder->hdmi_buffer_status = status;
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return result;
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}
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/*
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* write the audio workaround status to the hardware
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*/
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void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
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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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uint32_t offset = radeon_encoder->hdmi_offset;
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if (!offset)
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return;
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if (!radeon_encoder->hdmi_audio_workaround ||
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r600_hdmi_is_audio_buffer_filled(encoder)) {
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/* disable audio workaround */
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WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
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} else {
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/* enable audio workaround */
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WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
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}
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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 r600_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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
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if (ASIC_IS_DCE4(rdev))
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return;
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if (!offset)
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return;
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r600_audio_set_clock(encoder, mode->clock);
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WREG32(offset+R600_HDMI_UNKNOWN_0, 0x1000);
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WREG32(offset+R600_HDMI_UNKNOWN_1, 0x0);
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WREG32(offset+R600_HDMI_UNKNOWN_2, 0x1000);
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r600_hdmi_update_ACR(encoder, mode->clock);
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WREG32(offset+R600_HDMI_VIDEOCNTL, 0x13);
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WREG32(offset+R600_HDMI_VERSION, 0x202);
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r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
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/* it's unknown what these bits do excatly, but it's indeed quite usefull for debugging */
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WREG32(offset+R600_HDMI_AUDIO_DEBUG_0, 0x00FFFFFF);
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WREG32(offset+R600_HDMI_AUDIO_DEBUG_1, 0x007FFFFF);
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WREG32(offset+R600_HDMI_AUDIO_DEBUG_2, 0x00000001);
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WREG32(offset+R600_HDMI_AUDIO_DEBUG_3, 0x00000001);
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r600_hdmi_audio_workaround(encoder);
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/* audio packets per line, does anyone know how to calc this ? */
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WREG32_P(offset+R600_HDMI_CNTL, 0x00040000, ~0x001F0000);
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}
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/*
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* update settings with current parameters from audio engine
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*/
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void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
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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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uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
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int channels = r600_audio_channels(rdev);
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int rate = r600_audio_rate(rdev);
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int bps = r600_audio_bits_per_sample(rdev);
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uint8_t status_bits = r600_audio_status_bits(rdev);
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uint8_t category_code = r600_audio_category_code(rdev);
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uint32_t iec;
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if (!offset)
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return;
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DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
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r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
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channels, rate, bps);
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DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
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(int)status_bits, (int)category_code);
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iec = 0;
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if (status_bits & AUDIO_STATUS_PROFESSIONAL)
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iec |= 1 << 0;
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if (status_bits & AUDIO_STATUS_NONAUDIO)
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iec |= 1 << 1;
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if (status_bits & AUDIO_STATUS_COPYRIGHT)
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iec |= 1 << 2;
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if (status_bits & AUDIO_STATUS_EMPHASIS)
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iec |= 1 << 3;
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iec |= category_code << 8;
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switch (rate) {
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case 32000: iec |= 0x3 << 24; break;
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case 44100: iec |= 0x0 << 24; break;
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case 88200: iec |= 0x8 << 24; break;
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case 176400: iec |= 0xc << 24; break;
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case 48000: iec |= 0x2 << 24; break;
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case 96000: iec |= 0xa << 24; break;
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case 192000: iec |= 0xe << 24; break;
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}
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WREG32(offset+R600_HDMI_IEC60958_1, iec);
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iec = 0;
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switch (bps) {
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case 16: iec |= 0x2; break;
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case 20: iec |= 0x3; break;
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case 24: iec |= 0xb; break;
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}
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if (status_bits & AUDIO_STATUS_V)
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iec |= 0x5 << 16;
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WREG32_P(offset+R600_HDMI_IEC60958_2, iec, ~0x5000f);
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/* 0x021 or 0x031 sets the audio frame length */
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WREG32(offset+R600_HDMI_AUDIOCNTL, 0x31);
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r600_hdmi_audioinfoframe(encoder, channels-1, 0, 0, 0, 0, 0, 0, 0);
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r600_hdmi_audio_workaround(encoder);
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}
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static int r600_hdmi_find_free_block(struct drm_device *dev)
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{
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struct radeon_device *rdev = dev->dev_private;
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struct drm_encoder *encoder;
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struct radeon_encoder *radeon_encoder;
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bool free_blocks[3] = { true, true, true };
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list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
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radeon_encoder = to_radeon_encoder(encoder);
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switch (radeon_encoder->hdmi_offset) {
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case R600_HDMI_BLOCK1:
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free_blocks[0] = false;
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break;
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case R600_HDMI_BLOCK2:
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free_blocks[1] = false;
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break;
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case R600_HDMI_BLOCK3:
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free_blocks[2] = false;
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break;
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}
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}
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if (rdev->family == CHIP_RS600 || rdev->family == CHIP_RS690 ||
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rdev->family == CHIP_RS740) {
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return free_blocks[0] ? R600_HDMI_BLOCK1 : 0;
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} else if (rdev->family >= CHIP_R600) {
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if (free_blocks[0])
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return R600_HDMI_BLOCK1;
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else if (free_blocks[1])
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return R600_HDMI_BLOCK2;
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}
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return 0;
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}
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static void r600_hdmi_assign_block(struct drm_encoder *encoder)
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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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|
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if (!dig) {
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dev_err(rdev->dev, "Enabling HDMI on non-dig encoder\n");
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return;
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}
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|
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if (ASIC_IS_DCE4(rdev)) {
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/* TODO */
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} else if (ASIC_IS_DCE3(rdev)) {
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radeon_encoder->hdmi_offset = dig->dig_encoder ?
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R600_HDMI_BLOCK3 : R600_HDMI_BLOCK1;
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if (ASIC_IS_DCE32(rdev))
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radeon_encoder->hdmi_config_offset = dig->dig_encoder ?
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R600_HDMI_CONFIG2 : R600_HDMI_CONFIG1;
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} else if (rdev->family >= CHIP_R600 || rdev->family == CHIP_RS600 ||
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rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
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radeon_encoder->hdmi_offset = r600_hdmi_find_free_block(dev);
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}
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}
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|
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/*
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* enable the HDMI engine
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*/
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void r600_hdmi_enable(struct drm_encoder *encoder)
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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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uint32_t offset;
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|
|
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if (ASIC_IS_DCE4(rdev))
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return;
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|
|
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if (!radeon_encoder->hdmi_offset) {
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r600_hdmi_assign_block(encoder);
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if (!radeon_encoder->hdmi_offset) {
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dev_warn(rdev->dev, "Could not find HDMI block for "
|
|
"0x%x encoder\n", radeon_encoder->encoder_id);
|
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return;
|
|
}
|
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}
|
|
|
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offset = radeon_encoder->hdmi_offset;
|
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if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
|
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WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0x1, ~0x1);
|
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} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
|
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switch (radeon_encoder->encoder_id) {
|
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case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
|
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WREG32_P(AVIVO_TMDSA_CNTL, 0x4, ~0x4);
|
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WREG32(offset + R600_HDMI_ENABLE, 0x101);
|
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break;
|
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case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
|
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WREG32_P(AVIVO_LVTMA_CNTL, 0x4, ~0x4);
|
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WREG32(offset + R600_HDMI_ENABLE, 0x105);
|
|
break;
|
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default:
|
|
dev_err(rdev->dev, "Unknown HDMI output type\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rdev->irq.installed
|
|
&& rdev->family != CHIP_RS600
|
|
&& rdev->family != CHIP_RS690
|
|
&& rdev->family != CHIP_RS740) {
|
|
|
|
/* if irq is available use it */
|
|
rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = true;
|
|
radeon_irq_set(rdev);
|
|
|
|
r600_audio_disable_polling(encoder);
|
|
} else {
|
|
/* if not fallback to polling */
|
|
r600_audio_enable_polling(encoder);
|
|
}
|
|
|
|
DRM_DEBUG("Enabling HDMI interface @ 0x%04X for encoder 0x%x\n",
|
|
radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
|
|
}
|
|
|
|
/*
|
|
* disable the HDMI engine
|
|
*/
|
|
void r600_hdmi_disable(struct drm_encoder *encoder)
|
|
{
|
|
struct drm_device *dev = encoder->dev;
|
|
struct radeon_device *rdev = dev->dev_private;
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
uint32_t offset;
|
|
|
|
if (ASIC_IS_DCE4(rdev))
|
|
return;
|
|
|
|
offset = radeon_encoder->hdmi_offset;
|
|
if (!offset) {
|
|
dev_err(rdev->dev, "Disabling not enabled HDMI\n");
|
|
return;
|
|
}
|
|
|
|
DRM_DEBUG("Disabling HDMI interface @ 0x%04X for encoder 0x%x\n",
|
|
offset, radeon_encoder->encoder_id);
|
|
|
|
/* disable irq */
|
|
rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = false;
|
|
radeon_irq_set(rdev);
|
|
|
|
/* disable polling */
|
|
r600_audio_disable_polling(encoder);
|
|
|
|
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
|
|
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0, ~0x1);
|
|
} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
|
|
switch (radeon_encoder->encoder_id) {
|
|
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
|
|
WREG32_P(AVIVO_TMDSA_CNTL, 0, ~0x4);
|
|
WREG32(offset + R600_HDMI_ENABLE, 0);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
|
|
WREG32_P(AVIVO_LVTMA_CNTL, 0, ~0x4);
|
|
WREG32(offset + R600_HDMI_ENABLE, 0);
|
|
break;
|
|
default:
|
|
dev_err(rdev->dev, "Unknown HDMI output type\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
radeon_encoder->hdmi_offset = 0;
|
|
radeon_encoder->hdmi_config_offset = 0;
|
|
}
|