1254885Sdumbbell/* 2254885Sdumbbell * Copyright 2008 Advanced Micro Devices, Inc. 3254885Sdumbbell * Copyright 2008 Red Hat Inc. 4254885Sdumbbell * Copyright 2009 Christian K��nig. 5254885Sdumbbell * 6254885Sdumbbell * Permission is hereby granted, free of charge, to any person obtaining a 7254885Sdumbbell * copy of this software and associated documentation files (the "Software"), 8254885Sdumbbell * to deal in the Software without restriction, including without limitation 9254885Sdumbbell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10254885Sdumbbell * and/or sell copies of the Software, and to permit persons to whom the 11254885Sdumbbell * Software is furnished to do so, subject to the following conditions: 12254885Sdumbbell * 13254885Sdumbbell * The above copyright notice and this permission notice shall be included in 14254885Sdumbbell * all copies or substantial portions of the Software. 15254885Sdumbbell * 16254885Sdumbbell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17254885Sdumbbell * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18254885Sdumbbell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19254885Sdumbbell * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20254885Sdumbbell * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21254885Sdumbbell * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22254885Sdumbbell * OTHER DEALINGS IN THE SOFTWARE. 23254885Sdumbbell * 24254885Sdumbbell * Authors: Christian K��nig 25254885Sdumbbell */ 26254885Sdumbbell 27254885Sdumbbell#include <sys/cdefs.h> 28254885Sdumbbell__FBSDID("$FreeBSD: releng/11.0/sys/dev/drm2/radeon/r600_audio.c 254885 2013-08-25 19:37:15Z dumbbell $"); 29254885Sdumbbell 30254885Sdumbbell#include <dev/drm2/drmP.h> 31254885Sdumbbell#include "radeon.h" 32254885Sdumbbell#include "radeon_reg.h" 33254885Sdumbbell#include "radeon_asic.h" 34254885Sdumbbell#include "atom.h" 35254885Sdumbbell 36254885Sdumbbell/* 37254885Sdumbbell * check if enc_priv stores radeon_encoder_atom_dig 38254885Sdumbbell */ 39254885Sdumbbellstatic bool radeon_dig_encoder(struct drm_encoder *encoder) 40254885Sdumbbell{ 41254885Sdumbbell struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 42254885Sdumbbell switch (radeon_encoder->encoder_id) { 43254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_LVDS: 44254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_TMDS1: 45254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: 46254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_LVTM1: 47254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_DVO1: 48254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1: 49254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_DDI: 50254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: 51254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: 52254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: 53254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: 54254885Sdumbbell return true; 55254885Sdumbbell } 56254885Sdumbbell return false; 57254885Sdumbbell} 58254885Sdumbbell 59254885Sdumbbell/* 60254885Sdumbbell * check if the chipset is supported 61254885Sdumbbell */ 62254885Sdumbbellstatic int r600_audio_chipset_supported(struct radeon_device *rdev) 63254885Sdumbbell{ 64254885Sdumbbell return (rdev->family >= CHIP_R600 && !ASIC_IS_DCE6(rdev)) 65254885Sdumbbell || rdev->family == CHIP_RS600 66254885Sdumbbell || rdev->family == CHIP_RS690 67254885Sdumbbell || rdev->family == CHIP_RS740; 68254885Sdumbbell} 69254885Sdumbbell 70254885Sdumbbellstruct r600_audio r600_audio_status(struct radeon_device *rdev) 71254885Sdumbbell{ 72254885Sdumbbell struct r600_audio status; 73254885Sdumbbell uint32_t value; 74254885Sdumbbell 75254885Sdumbbell value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL); 76254885Sdumbbell 77254885Sdumbbell /* number of channels */ 78254885Sdumbbell status.channels = (value & 0x7) + 1; 79254885Sdumbbell 80254885Sdumbbell /* bits per sample */ 81254885Sdumbbell switch ((value & 0xF0) >> 4) { 82254885Sdumbbell case 0x0: 83254885Sdumbbell status.bits_per_sample = 8; 84254885Sdumbbell break; 85254885Sdumbbell case 0x1: 86254885Sdumbbell status.bits_per_sample = 16; 87254885Sdumbbell break; 88254885Sdumbbell case 0x2: 89254885Sdumbbell status.bits_per_sample = 20; 90254885Sdumbbell break; 91254885Sdumbbell case 0x3: 92254885Sdumbbell status.bits_per_sample = 24; 93254885Sdumbbell break; 94254885Sdumbbell case 0x4: 95254885Sdumbbell status.bits_per_sample = 32; 96254885Sdumbbell break; 97254885Sdumbbell default: 98254885Sdumbbell dev_err(rdev->dev, "Unknown bits per sample 0x%x, using 16\n", 99254885Sdumbbell (int)value); 100254885Sdumbbell status.bits_per_sample = 16; 101254885Sdumbbell } 102254885Sdumbbell 103254885Sdumbbell /* current sampling rate in HZ */ 104254885Sdumbbell if (value & 0x4000) 105254885Sdumbbell status.rate = 44100; 106254885Sdumbbell else 107254885Sdumbbell status.rate = 48000; 108254885Sdumbbell status.rate *= ((value >> 11) & 0x7) + 1; 109254885Sdumbbell status.rate /= ((value >> 8) & 0x7) + 1; 110254885Sdumbbell 111254885Sdumbbell value = RREG32(R600_AUDIO_STATUS_BITS); 112254885Sdumbbell 113254885Sdumbbell /* iec 60958 status bits */ 114254885Sdumbbell status.status_bits = value & 0xff; 115254885Sdumbbell 116254885Sdumbbell /* iec 60958 category code */ 117254885Sdumbbell status.category_code = (value >> 8) & 0xff; 118254885Sdumbbell 119254885Sdumbbell return status; 120254885Sdumbbell} 121254885Sdumbbell 122254885Sdumbbell/* 123254885Sdumbbell * update all hdmi interfaces with current audio parameters 124254885Sdumbbell */ 125254885Sdumbbellvoid r600_audio_update_hdmi(void *arg, int pending) 126254885Sdumbbell{ 127254885Sdumbbell struct radeon_device *rdev = arg; 128254885Sdumbbell struct drm_device *dev = rdev->ddev; 129254885Sdumbbell struct r600_audio audio_status = r600_audio_status(rdev); 130254885Sdumbbell struct drm_encoder *encoder; 131254885Sdumbbell bool changed = false; 132254885Sdumbbell 133254885Sdumbbell if (rdev->audio_status.channels != audio_status.channels || 134254885Sdumbbell rdev->audio_status.rate != audio_status.rate || 135254885Sdumbbell rdev->audio_status.bits_per_sample != audio_status.bits_per_sample || 136254885Sdumbbell rdev->audio_status.status_bits != audio_status.status_bits || 137254885Sdumbbell rdev->audio_status.category_code != audio_status.category_code) { 138254885Sdumbbell rdev->audio_status = audio_status; 139254885Sdumbbell changed = true; 140254885Sdumbbell } 141254885Sdumbbell 142254885Sdumbbell list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 143254885Sdumbbell if (!radeon_dig_encoder(encoder)) 144254885Sdumbbell continue; 145254885Sdumbbell if (changed || r600_hdmi_buffer_status_changed(encoder)) 146254885Sdumbbell r600_hdmi_update_audio_settings(encoder); 147254885Sdumbbell } 148254885Sdumbbell} 149254885Sdumbbell 150254885Sdumbbell/* 151254885Sdumbbell * turn on/off audio engine 152254885Sdumbbell */ 153254885Sdumbbellstatic void r600_audio_engine_enable(struct radeon_device *rdev, bool enable) 154254885Sdumbbell{ 155254885Sdumbbell u32 value = 0; 156254885Sdumbbell DRM_INFO("%s audio support\n", enable ? "Enabling" : "Disabling"); 157254885Sdumbbell if (ASIC_IS_DCE4(rdev)) { 158254885Sdumbbell if (enable) { 159254885Sdumbbell value |= 0x81000000; /* Required to enable audio */ 160254885Sdumbbell value |= 0x0e1000f0; /* fglrx sets that too */ 161254885Sdumbbell } 162254885Sdumbbell WREG32(EVERGREEN_AUDIO_ENABLE, value); 163254885Sdumbbell } else { 164254885Sdumbbell WREG32_P(R600_AUDIO_ENABLE, 165254885Sdumbbell enable ? 0x81000000 : 0x0, ~0x81000000); 166254885Sdumbbell } 167254885Sdumbbell rdev->audio_enabled = enable; 168254885Sdumbbell} 169254885Sdumbbell 170254885Sdumbbell/* 171254885Sdumbbell * initialize the audio vars 172254885Sdumbbell */ 173254885Sdumbbellint r600_audio_init(struct radeon_device *rdev) 174254885Sdumbbell{ 175254885Sdumbbell if (!radeon_audio || !r600_audio_chipset_supported(rdev)) 176254885Sdumbbell return 0; 177254885Sdumbbell 178254885Sdumbbell r600_audio_engine_enable(rdev, true); 179254885Sdumbbell 180254885Sdumbbell rdev->audio_status.channels = -1; 181254885Sdumbbell rdev->audio_status.rate = -1; 182254885Sdumbbell rdev->audio_status.bits_per_sample = -1; 183254885Sdumbbell rdev->audio_status.status_bits = 0; 184254885Sdumbbell rdev->audio_status.category_code = 0; 185254885Sdumbbell 186254885Sdumbbell return 0; 187254885Sdumbbell} 188254885Sdumbbell 189254885Sdumbbell/* 190254885Sdumbbell * atach the audio codec to the clock source of the encoder 191254885Sdumbbell */ 192254885Sdumbbellvoid r600_audio_set_clock(struct drm_encoder *encoder, int clock) 193254885Sdumbbell{ 194254885Sdumbbell struct drm_device *dev = encoder->dev; 195254885Sdumbbell struct radeon_device *rdev = dev->dev_private; 196254885Sdumbbell struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 197254885Sdumbbell struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 198254885Sdumbbell struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc); 199254885Sdumbbell int base_rate = 48000; 200254885Sdumbbell 201254885Sdumbbell switch (radeon_encoder->encoder_id) { 202254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: 203254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_LVTM1: 204254885Sdumbbell WREG32_P(R600_AUDIO_TIMING, 0, ~0x301); 205254885Sdumbbell break; 206254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: 207254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: 208254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: 209254885Sdumbbell case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: 210254885Sdumbbell WREG32_P(R600_AUDIO_TIMING, 0x100, ~0x301); 211254885Sdumbbell break; 212254885Sdumbbell default: 213254885Sdumbbell dev_err(rdev->dev, "Unsupported encoder type 0x%02X\n", 214254885Sdumbbell radeon_encoder->encoder_id); 215254885Sdumbbell return; 216254885Sdumbbell } 217254885Sdumbbell 218254885Sdumbbell if (ASIC_IS_DCE4(rdev)) { 219254885Sdumbbell /* TODO: other PLLs? */ 220254885Sdumbbell WREG32(EVERGREEN_AUDIO_PLL1_MUL, base_rate * 10); 221254885Sdumbbell WREG32(EVERGREEN_AUDIO_PLL1_DIV, clock * 10); 222254885Sdumbbell WREG32(EVERGREEN_AUDIO_PLL1_UNK, 0x00000071); 223254885Sdumbbell 224254885Sdumbbell /* Select DTO source */ 225254885Sdumbbell WREG32(0x5ac, radeon_crtc->crtc_id); 226254885Sdumbbell } else { 227254885Sdumbbell switch (dig->dig_encoder) { 228254885Sdumbbell case 0: 229254885Sdumbbell WREG32(R600_AUDIO_PLL1_MUL, base_rate * 50); 230254885Sdumbbell WREG32(R600_AUDIO_PLL1_DIV, clock * 100); 231254885Sdumbbell WREG32(R600_AUDIO_CLK_SRCSEL, 0); 232254885Sdumbbell break; 233254885Sdumbbell 234254885Sdumbbell case 1: 235254885Sdumbbell WREG32(R600_AUDIO_PLL2_MUL, base_rate * 50); 236254885Sdumbbell WREG32(R600_AUDIO_PLL2_DIV, clock * 100); 237254885Sdumbbell WREG32(R600_AUDIO_CLK_SRCSEL, 1); 238254885Sdumbbell break; 239254885Sdumbbell default: 240254885Sdumbbell dev_err(rdev->dev, 241254885Sdumbbell "Unsupported DIG on encoder 0x%02X\n", 242254885Sdumbbell radeon_encoder->encoder_id); 243254885Sdumbbell return; 244254885Sdumbbell } 245254885Sdumbbell } 246254885Sdumbbell} 247254885Sdumbbell 248254885Sdumbbell/* 249254885Sdumbbell * release the audio timer 250254885Sdumbbell * TODO: How to do this correctly on SMP systems? 251254885Sdumbbell */ 252254885Sdumbbellvoid r600_audio_fini(struct radeon_device *rdev) 253254885Sdumbbell{ 254254885Sdumbbell if (!rdev->audio_enabled) 255254885Sdumbbell return; 256254885Sdumbbell 257254885Sdumbbell r600_audio_engine_enable(rdev, false); 258254885Sdumbbell} 259