/* $OpenBSD: r600_hdmi.c,v 1.2 2014/02/09 13:43:02 jsg Exp $ */ /* * Copyright 2008 Advanced Micro Devices, Inc. * Copyright 2008 Red Hat Inc. * Copyright 2009 Christian König. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Christian König */ #include #include #include "radeon.h" #include "radeon_asic.h" #include "r600d.h" #include "atom.h" /* * HDMI color format */ enum r600_hdmi_color_format { RGB = 0, YCC_422 = 1, YCC_444 = 2 }; /* * IEC60958 status bits */ enum r600_hdmi_iec_status_bits { AUDIO_STATUS_DIG_ENABLE = 0x01, AUDIO_STATUS_V = 0x02, AUDIO_STATUS_VCFG = 0x04, AUDIO_STATUS_EMPHASIS = 0x08, AUDIO_STATUS_COPYRIGHT = 0x10, AUDIO_STATUS_NONAUDIO = 0x20, AUDIO_STATUS_PROFESSIONAL = 0x40, AUDIO_STATUS_LEVEL = 0x80 }; static const struct radeon_hdmi_acr r600_hdmi_predefined_acr[] = { /* 32kHz 44.1kHz 48kHz */ /* Clock N CTS N CTS N CTS */ { 25174, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */ { 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */ { 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */ { 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */ { 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */ { 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */ { 74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */ { 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */ { 148351, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */ { 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */ { 0, 4096, 0, 6272, 0, 6144, 0 } /* Other */ }; /* * calculate CTS value if it's not found in the table */ static void r600_hdmi_calc_cts(uint32_t clock, int *CTS, int N, int freq) { if (*CTS == 0) *CTS = clock * N / (128 * freq) * 1000; DRM_DEBUG("Using ACR timing N=%d CTS=%d for frequency %d\n", N, *CTS, freq); } struct radeon_hdmi_acr r600_hdmi_acr(uint32_t clock) { struct radeon_hdmi_acr res; u8 i; for (i = 0; r600_hdmi_predefined_acr[i].clock != clock && r600_hdmi_predefined_acr[i].clock != 0; i++) ; res = r600_hdmi_predefined_acr[i]; /* In case some CTS are missing */ r600_hdmi_calc_cts(clock, &res.cts_32khz, res.n_32khz, 32000); r600_hdmi_calc_cts(clock, &res.cts_44_1khz, res.n_44_1khz, 44100); r600_hdmi_calc_cts(clock, &res.cts_48khz, res.n_48khz, 48000); return res; } /* * update the N and CTS parameters for a given pixel clock rate */ static void r600_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t clock) { struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; struct radeon_hdmi_acr acr = r600_hdmi_acr(clock); struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset = dig->afmt->offset; WREG32(HDMI0_ACR_32_0 + offset, HDMI0_ACR_CTS_32(acr.cts_32khz)); WREG32(HDMI0_ACR_32_1 + offset, acr.n_32khz); WREG32(HDMI0_ACR_44_0 + offset, HDMI0_ACR_CTS_44(acr.cts_44_1khz)); WREG32(HDMI0_ACR_44_1 + offset, acr.n_44_1khz); WREG32(HDMI0_ACR_48_0 + offset, HDMI0_ACR_CTS_48(acr.cts_48khz)); WREG32(HDMI0_ACR_48_1 + offset, acr.n_48khz); } /* * calculate the crc for a given info frame */ static void r600_hdmi_infoframe_checksum(uint8_t packetType, uint8_t versionNumber, uint8_t length, uint8_t *frame) { int i; frame[0] = packetType + versionNumber + length; for (i = 1; i <= length; i++) frame[0] += frame[i]; frame[0] = 0x100 - frame[0]; } /* * build a HDMI Video Info Frame */ static void r600_hdmi_videoinfoframe( struct drm_encoder *encoder, enum r600_hdmi_color_format color_format, int active_information_present, uint8_t active_format_aspect_ratio, uint8_t scan_information, uint8_t colorimetry, uint8_t ex_colorimetry, uint8_t quantization, int ITC, uint8_t picture_aspect_ratio, uint8_t video_format_identification, uint8_t pixel_repetition, uint8_t non_uniform_picture_scaling, uint8_t bar_info_data_valid, uint16_t top_bar, uint16_t bottom_bar, uint16_t left_bar, uint16_t right_bar ) { 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 = dig->afmt->offset; uint8_t frame[14]; frame[0x0] = 0; frame[0x1] = (scan_information & 0x3) | ((bar_info_data_valid & 0x3) << 2) | ((active_information_present & 0x1) << 4) | ((color_format & 0x3) << 5); frame[0x2] = (active_format_aspect_ratio & 0xF) | ((picture_aspect_ratio & 0x3) << 4) | ((colorimetry & 0x3) << 6); frame[0x3] = (non_uniform_picture_scaling & 0x3) | ((quantization & 0x3) << 2) | ((ex_colorimetry & 0x7) << 4) | ((ITC & 0x1) << 7); frame[0x4] = (video_format_identification & 0x7F); frame[0x5] = (pixel_repetition & 0xF); frame[0x6] = (top_bar & 0xFF); frame[0x7] = (top_bar >> 8); frame[0x8] = (bottom_bar & 0xFF); frame[0x9] = (bottom_bar >> 8); frame[0xA] = (left_bar & 0xFF); frame[0xB] = (left_bar >> 8); frame[0xC] = (right_bar & 0xFF); frame[0xD] = (right_bar >> 8); r600_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame); /* Our header values (type, version, length) should be alright, Intel * is using the same. Checksum function also seems to be OK, it works * fine for audio infoframe. However calculated value is always lower * by 2 in comparison to fglrx. It breaks displaying anything in case * of TVs that strictly check the checksum. Hack it manually here to * workaround this issue. */ frame[0x0] += 2; WREG32(HDMI0_AVI_INFO0 + offset, frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24)); WREG32(HDMI0_AVI_INFO1 + offset, frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24)); WREG32(HDMI0_AVI_INFO2 + offset, frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24)); WREG32(HDMI0_AVI_INFO3 + offset, frame[0xC] | (frame[0xD] << 8)); } /* * build a Audio Info Frame */ static void r600_hdmi_audioinfoframe( struct drm_encoder *encoder, uint8_t channel_count, uint8_t coding_type, uint8_t sample_size, uint8_t sample_frequency, uint8_t format, uint8_t channel_allocation, uint8_t level_shift, int downmix_inhibit ) { 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 = dig->afmt->offset; uint8_t frame[11]; frame[0x0] = 0; frame[0x1] = (channel_count & 0x7) | ((coding_type & 0xF) << 4); frame[0x2] = (sample_size & 0x3) | ((sample_frequency & 0x7) << 2); frame[0x3] = format; frame[0x4] = channel_allocation; frame[0x5] = ((level_shift & 0xF) << 3) | ((downmix_inhibit & 0x1) << 7); frame[0x6] = 0; frame[0x7] = 0; frame[0x8] = 0; frame[0x9] = 0; frame[0xA] = 0; r600_hdmi_infoframe_checksum(0x84, 0x01, 0x0A, frame); WREG32(HDMI0_AUDIO_INFO0 + offset, frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24)); WREG32(HDMI0_AUDIO_INFO1 + offset, frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x8] << 24)); } /* * test if audio buffer is filled enough to start playing */ static bool r600_hdmi_is_audio_buffer_filled(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 = dig->afmt->offset; return (RREG32(HDMI0_STATUS + offset) & 0x10) != 0; } /* * have buffer status changed since last call? */ int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; int status, result; if (!dig->afmt || !dig->afmt->enabled) return 0; status = r600_hdmi_is_audio_buffer_filled(encoder); result = dig->afmt->last_buffer_filled_status != status; dig->afmt->last_buffer_filled_status = status; return result; } /* * write the audio workaround status to the hardware */ static void r600_hdmi_audio_workaround(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 = dig->afmt->offset; bool hdmi_audio_workaround = false; /* FIXME */ u32 value; if (!hdmi_audio_workaround || r600_hdmi_is_audio_buffer_filled(encoder)) value = 0; /* disable workaround */ else value = HDMI0_AUDIO_TEST_EN; /* enable workaround */ WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset, value, ~HDMI0_AUDIO_TEST_EN); } /* * update the info frames with the data from the current display mode */ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mode) { 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 (!dig || !dig->afmt) return; /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) return; offset = dig->afmt->offset; r600_audio_set_clock(encoder, mode->clock); WREG32(HDMI0_VBI_PACKET_CONTROL + offset, HDMI0_NULL_SEND); /* send null packets when required */ WREG32(HDMI0_AUDIO_CRC_CONTROL + offset, 0x1000); if (ASIC_IS_DCE32(rdev)) { WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset, HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */ HDMI0_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */ WREG32(AFMT_AUDIO_PACKET_CONTROL + offset, AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */ AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */ } else { WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset, HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */ HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */ HDMI0_AUDIO_PACKETS_PER_LINE(3) | /* should be suffient for all audio modes and small enough for all hblanks */ HDMI0_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */ } WREG32(HDMI0_ACR_PACKET_CONTROL + offset, HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */ HDMI0_ACR_SOURCE); /* select SW CTS value */ WREG32(HDMI0_VBI_PACKET_CONTROL + offset, HDMI0_NULL_SEND | /* send null packets when required */ HDMI0_GC_SEND | /* send general control packets */ HDMI0_GC_CONT); /* send general control packets every frame */ /* TODO: HDMI0_AUDIO_INFO_UPDATE */ WREG32(HDMI0_INFOFRAME_CONTROL0 + offset, HDMI0_AVI_INFO_SEND | /* enable AVI info frames */ HDMI0_AVI_INFO_CONT | /* send AVI info frames every frame/field */ HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */ HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */ WREG32(HDMI0_INFOFRAME_CONTROL1 + offset, HDMI0_AVI_INFO_LINE(2) | /* anything other than 0 */ HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */ WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */ r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); r600_hdmi_update_ACR(encoder, mode->clock); /* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */ WREG32(HDMI0_RAMP_CONTROL0 + offset, 0x00FFFFFF); WREG32(HDMI0_RAMP_CONTROL1 + offset, 0x007FFFFF); WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001); WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001); r600_hdmi_audio_workaround(encoder); } /* * update settings with current parameters from audio engine */ void r600_hdmi_update_audio_settings(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; struct r600_audio audio = r600_audio_status(rdev); uint32_t offset; uint32_t iec; if (!dig->afmt || !dig->afmt->enabled) return; offset = dig->afmt->offset; DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n", r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped", audio.channels, audio.rate, audio.bits_per_sample); DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n", (int)audio.status_bits, (int)audio.category_code); iec = 0; if (audio.status_bits & AUDIO_STATUS_PROFESSIONAL) iec |= 1 << 0; if (audio.status_bits & AUDIO_STATUS_NONAUDIO) iec |= 1 << 1; if (audio.status_bits & AUDIO_STATUS_COPYRIGHT) iec |= 1 << 2; if (audio.status_bits & AUDIO_STATUS_EMPHASIS) iec |= 1 << 3; iec |= HDMI0_60958_CS_CATEGORY_CODE(audio.category_code); switch (audio.rate) { case 32000: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x3); break; case 44100: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x0); break; case 48000: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x2); break; case 88200: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x8); break; case 96000: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xa); break; case 176400: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xc); break; case 192000: iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xe); break; } WREG32(HDMI0_60958_0 + offset, iec); iec = 0; switch (audio.bits_per_sample) { case 16: iec |= HDMI0_60958_CS_WORD_LENGTH(0x2); break; case 20: iec |= HDMI0_60958_CS_WORD_LENGTH(0x3); break; case 24: iec |= HDMI0_60958_CS_WORD_LENGTH(0xb); break; } if (audio.status_bits & AUDIO_STATUS_V) iec |= 0x5 << 16; WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f); r600_hdmi_audioinfoframe(encoder, audio.channels - 1, 0, 0, 0, 0, 0, 0, 0); r600_hdmi_audio_workaround(encoder); } /* * enable the HDMI engine */ void r600_hdmi_enable(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; u32 hdmi; if (!dig || !dig->afmt) return; 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_P(AVIVO_TMDSA_CNTL, AVIVO_TMDSA_CNTL_HDMI_EN, ~AVIVO_TMDSA_CNTL_HDMI_EN); hdmi |= HDMI0_STREAM(HDMI0_STREAM_TMDSA); break; case ENCODER_OBJECT_ID_INTERNAL_LVTM1: WREG32_P(AVIVO_LVTMA_CNTL, AVIVO_LVTMA_CNTL_HDMI_EN, ~AVIVO_LVTMA_CNTL_HDMI_EN); hdmi |= HDMI0_STREAM(HDMI0_STREAM_LVTMA); break; case ENCODER_OBJECT_ID_INTERNAL_DDI: WREG32_P(DDIA_CNTL, DDIA_HDMI_EN, ~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 */ 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_P(AVIVO_TMDSA_CNTL, 0, ~AVIVO_TMDSA_CNTL_HDMI_EN); break; case ENCODER_OBJECT_ID_INTERNAL_LVTM1: WREG32_P(AVIVO_LVTMA_CNTL, 0, ~AVIVO_LVTMA_CNTL_HDMI_EN); break; case ENCODER_OBJECT_ID_INTERNAL_DDI: WREG32_P(DDIA_CNTL, 0, ~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; }