![Alex Deucher](/assets/img/avatar_default.png)
The audio format change interrupts are an aid in debugging, but not required for operation. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
527 lines
17 KiB
C
527 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 <linux/hdmi.h>
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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 "r600d.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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static const struct radeon_hdmi_acr r600_hdmi_predefined_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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struct radeon_hdmi_acr r600_hdmi_acr(uint32_t clock)
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{
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struct radeon_hdmi_acr res;
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u8 i;
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for (i = 0; r600_hdmi_predefined_acr[i].clock != clock &&
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r600_hdmi_predefined_acr[i].clock != 0; i++)
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;
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res = r600_hdmi_predefined_acr[i];
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/* In case some CTS are missing */
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r600_hdmi_calc_cts(clock, &res.cts_32khz, res.n_32khz, 32000);
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r600_hdmi_calc_cts(clock, &res.cts_44_1khz, res.n_44_1khz, 44100);
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r600_hdmi_calc_cts(clock, &res.cts_48khz, res.n_48khz, 48000);
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return res;
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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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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(HDMI0_ACR_32_0 + offset, HDMI0_ACR_CTS_32(acr.cts_32khz));
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WREG32(HDMI0_ACR_32_1 + offset, acr.n_32khz);
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WREG32(HDMI0_ACR_44_0 + offset, HDMI0_ACR_CTS_44(acr.cts_44_1khz));
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WREG32(HDMI0_ACR_44_1 + offset, acr.n_44_1khz);
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WREG32(HDMI0_ACR_48_0 + offset, HDMI0_ACR_CTS_48(acr.cts_48khz));
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WREG32(HDMI0_ACR_48_1 + offset, acr.n_48khz);
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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_update_avi_infoframe(struct drm_encoder *encoder,
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void *buffer, size_t size)
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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 = buffer + 3;
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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(HDMI0_AVI_INFO0 + offset,
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frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
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WREG32(HDMI0_AVI_INFO1 + offset,
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frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
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WREG32(HDMI0_AVI_INFO2 + offset,
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frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
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WREG32(HDMI0_AVI_INFO3 + offset,
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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_update_audio_infoframe(struct drm_encoder *encoder,
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const void *buffer, size_t size)
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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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const u8 *frame = buffer + 3;
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WREG32(HDMI0_AUDIO_INFO0 + offset,
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frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
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WREG32(HDMI0_AUDIO_INFO1 + offset,
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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 bool 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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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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return (RREG32(HDMI0_STATUS + offset) & 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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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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int status, result;
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if (!dig->afmt || !dig->afmt->enabled)
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return 0;
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status = r600_hdmi_is_audio_buffer_filled(encoder);
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result = dig->afmt->last_buffer_filled_status != status;
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dig->afmt->last_buffer_filled_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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static 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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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
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uint32_t offset = dig->afmt->offset;
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bool hdmi_audio_workaround = false; /* FIXME */
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u32 value;
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if (!hdmi_audio_workaround ||
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r600_hdmi_is_audio_buffer_filled(encoder))
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value = 0; /* disable workaround */
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else
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value = HDMI0_AUDIO_TEST_EN; /* enable workaround */
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WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
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value, ~HDMI0_AUDIO_TEST_EN);
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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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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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u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
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struct hdmi_avi_infoframe frame;
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uint32_t offset;
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ssize_t err;
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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(HDMI0_VBI_PACKET_CONTROL + offset,
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HDMI0_NULL_SEND); /* send null packets when required */
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WREG32(HDMI0_AUDIO_CRC_CONTROL + offset, 0x1000);
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if (ASIC_IS_DCE32(rdev)) {
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WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
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HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
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HDMI0_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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} else {
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WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
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HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */
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HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
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HDMI0_AUDIO_PACKETS_PER_LINE(3) | /* should be suffient for all audio modes and small enough for all hblanks */
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HDMI0_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
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}
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WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
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HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */
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HDMI0_ACR_SOURCE); /* select SW CTS value */
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WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
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HDMI0_NULL_SEND | /* send null packets when required */
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HDMI0_GC_SEND | /* send general control packets */
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HDMI0_GC_CONT); /* send general control packets every frame */
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/* TODO: HDMI0_AUDIO_INFO_UPDATE */
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WREG32(HDMI0_INFOFRAME_CONTROL0 + offset,
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HDMI0_AVI_INFO_SEND | /* enable AVI info frames */
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HDMI0_AVI_INFO_CONT | /* send AVI info frames every frame/field */
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HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
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HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */
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WREG32(HDMI0_INFOFRAME_CONTROL1 + offset,
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HDMI0_AVI_INFO_LINE(2) | /* anything other than 0 */
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HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */
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WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */
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err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
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if (err < 0) {
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DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
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return;
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}
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err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
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if (err < 0) {
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DRM_ERROR("failed to pack AVI infoframe: %zd\n", err);
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return;
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}
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r600_hdmi_update_avi_infoframe(encoder, buffer, sizeof(buffer));
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r600_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(HDMI0_RAMP_CONTROL0 + offset, 0x00FFFFFF);
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WREG32(HDMI0_RAMP_CONTROL1 + offset, 0x007FFFFF);
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WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001);
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WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001);
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r600_hdmi_audio_workaround(encoder);
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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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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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struct r600_audio audio = r600_audio_status(rdev);
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uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
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struct hdmi_audio_infoframe frame;
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uint32_t offset;
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uint32_t iec;
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ssize_t err;
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if (!dig->afmt || !dig->afmt->enabled)
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return;
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offset = dig->afmt->offset;
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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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audio.channels, audio.rate, audio.bits_per_sample);
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DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
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(int)audio.status_bits, (int)audio.category_code);
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iec = 0;
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if (audio.status_bits & AUDIO_STATUS_PROFESSIONAL)
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iec |= 1 << 0;
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if (audio.status_bits & AUDIO_STATUS_NONAUDIO)
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iec |= 1 << 1;
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if (audio.status_bits & AUDIO_STATUS_COPYRIGHT)
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iec |= 1 << 2;
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if (audio.status_bits & AUDIO_STATUS_EMPHASIS)
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iec |= 1 << 3;
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iec |= HDMI0_60958_CS_CATEGORY_CODE(audio.category_code);
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switch (audio.rate) {
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case 32000:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x3);
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break;
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case 44100:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x0);
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break;
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case 48000:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x2);
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break;
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case 88200:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x8);
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break;
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case 96000:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xa);
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break;
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case 176400:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xc);
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break;
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case 192000:
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iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xe);
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break;
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}
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WREG32(HDMI0_60958_0 + offset, iec);
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iec = 0;
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switch (audio.bits_per_sample) {
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case 16:
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iec |= HDMI0_60958_CS_WORD_LENGTH(0x2);
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break;
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case 20:
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iec |= HDMI0_60958_CS_WORD_LENGTH(0x3);
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break;
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case 24:
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iec |= HDMI0_60958_CS_WORD_LENGTH(0xb);
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break;
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}
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if (audio.status_bits & AUDIO_STATUS_V)
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iec |= 0x5 << 16;
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WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f);
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err = hdmi_audio_infoframe_init(&frame);
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if (err < 0) {
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DRM_ERROR("failed to setup audio infoframe\n");
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return;
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}
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frame.channels = audio.channels;
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err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
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if (err < 0) {
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DRM_ERROR("failed to pack audio infoframe\n");
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return;
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}
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r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer));
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r600_hdmi_audio_workaround(encoder);
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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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struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
|
|
uint32_t offset;
|
|
u32 hdmi;
|
|
|
|
if (ASIC_IS_DCE6(rdev))
|
|
return;
|
|
|
|
/* Silent, r600_hdmi_enable will raise WARN for us */
|
|
if (dig->afmt->enabled)
|
|
return;
|
|
offset = dig->afmt->offset;
|
|
|
|
/* Older chipsets require setting HDMI and routing manually */
|
|
if (ASIC_IS_DCE2(rdev) && !ASIC_IS_DCE3(rdev)) {
|
|
hdmi = HDMI0_ERROR_ACK | HDMI0_ENABLE;
|
|
switch (radeon_encoder->encoder_id) {
|
|
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
|
|
WREG32_OR(AVIVO_TMDSA_CNTL, AVIVO_TMDSA_CNTL_HDMI_EN);
|
|
hdmi |= HDMI0_STREAM(HDMI0_STREAM_TMDSA);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
|
|
WREG32_OR(AVIVO_LVTMA_CNTL, AVIVO_LVTMA_CNTL_HDMI_EN);
|
|
hdmi |= HDMI0_STREAM(HDMI0_STREAM_LVTMA);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_DDI:
|
|
WREG32_OR(DDIA_CNTL, DDIA_HDMI_EN);
|
|
hdmi |= HDMI0_STREAM(HDMI0_STREAM_DDIA);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
|
|
hdmi |= HDMI0_STREAM(HDMI0_STREAM_DVOA);
|
|
break;
|
|
default:
|
|
dev_err(rdev->dev, "Invalid encoder for HDMI: 0x%X\n",
|
|
radeon_encoder->encoder_id);
|
|
break;
|
|
}
|
|
WREG32(HDMI0_CONTROL + offset, hdmi);
|
|
}
|
|
|
|
if (rdev->irq.installed) {
|
|
/* if irq is available use it */
|
|
/* XXX: shouldn't need this on any asics. Double check DCE2/3 */
|
|
if (!ASIC_IS_DCE4(rdev))
|
|
radeon_irq_kms_enable_afmt(rdev, dig->afmt->id);
|
|
}
|
|
|
|
dig->afmt->enabled = true;
|
|
|
|
DRM_DEBUG("Enabling HDMI interface @ 0x%04X for encoder 0x%x\n",
|
|
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);
|
|
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
|
|
uint32_t offset;
|
|
|
|
if (ASIC_IS_DCE6(rdev))
|
|
return;
|
|
|
|
/* Called for ATOM_ENCODER_MODE_HDMI only */
|
|
if (!dig || !dig->afmt) {
|
|
return;
|
|
}
|
|
if (!dig->afmt->enabled)
|
|
return;
|
|
offset = dig->afmt->offset;
|
|
|
|
DRM_DEBUG("Disabling HDMI interface @ 0x%04X for encoder 0x%x\n",
|
|
offset, radeon_encoder->encoder_id);
|
|
|
|
/* disable irq */
|
|
radeon_irq_kms_disable_afmt(rdev, dig->afmt->id);
|
|
|
|
/* Older chipsets not handled by AtomBIOS */
|
|
if (ASIC_IS_DCE2(rdev) && !ASIC_IS_DCE3(rdev)) {
|
|
switch (radeon_encoder->encoder_id) {
|
|
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
|
|
WREG32_AND(AVIVO_TMDSA_CNTL, ~AVIVO_TMDSA_CNTL_HDMI_EN);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
|
|
WREG32_AND(AVIVO_LVTMA_CNTL, ~AVIVO_LVTMA_CNTL_HDMI_EN);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_DDI:
|
|
WREG32_AND(DDIA_CNTL, ~DDIA_HDMI_EN);
|
|
break;
|
|
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
|
|
break;
|
|
default:
|
|
dev_err(rdev->dev, "Invalid encoder for HDMI: 0x%X\n",
|
|
radeon_encoder->encoder_id);
|
|
break;
|
|
}
|
|
WREG32(HDMI0_CONTROL + offset, HDMI0_ERROR_ACK);
|
|
}
|
|
|
|
dig->afmt->enabled = false;
|
|
}
|