Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 | /*
* 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 <drm/drmP.h>
#include "radeon.h"
#include "radeon_reg.h"
#include "radeon_asic.h"
#include "atom.h"
/*
* check if enc_priv stores radeon_encoder_atom_dig
*/
static bool radeon_dig_encoder(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_LVDS:
case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
case ENCODER_OBJECT_ID_INTERNAL_DVO1:
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
case ENCODER_OBJECT_ID_INTERNAL_DDI:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
return true;
}
return false;
}
/*
* check if the chipset is supported
*/
static int r600_audio_chipset_supported(struct radeon_device *rdev)
{
return (rdev->family >= CHIP_R600 && !ASIC_IS_DCE6(rdev))
|| rdev->family == CHIP_RS600
|| rdev->family == CHIP_RS690
|| rdev->family == CHIP_RS740;
}
struct r600_audio r600_audio_status(struct radeon_device *rdev)
{
struct r600_audio status;
uint32_t value;
value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
/* number of channels */
status.channels = (value & 0x7) + 1;
/* bits per sample */
switch ((value & 0xF0) >> 4) {
case 0x0:
status.bits_per_sample = 8;
break;
case 0x1:
status.bits_per_sample = 16;
break;
case 0x2:
status.bits_per_sample = 20;
break;
case 0x3:
status.bits_per_sample = 24;
break;
case 0x4:
status.bits_per_sample = 32;
break;
default:
dev_err(rdev->dev, "Unknown bits per sample 0x%x, using 16\n",
(int)value);
status.bits_per_sample = 16;
}
/* current sampling rate in HZ */
if (value & 0x4000)
status.rate = 44100;
else
status.rate = 48000;
status.rate *= ((value >> 11) & 0x7) + 1;
status.rate /= ((value >> 8) & 0x7) + 1;
value = RREG32(R600_AUDIO_STATUS_BITS);
/* iec 60958 status bits */
status.status_bits = value & 0xff;
/* iec 60958 category code */
status.category_code = (value >> 8) & 0xff;
return status;
}
/*
* update all hdmi interfaces with current audio parameters
*/
void r600_audio_update_hdmi(struct work_struct *work)
{
struct radeon_device *rdev = container_of(work, struct radeon_device,
audio_work);
struct drm_device *dev = rdev->ddev;
struct r600_audio audio_status = r600_audio_status(rdev);
struct drm_encoder *encoder;
bool changed = false;
if (rdev->audio_status.channels != audio_status.channels ||
rdev->audio_status.rate != audio_status.rate ||
rdev->audio_status.bits_per_sample != audio_status.bits_per_sample ||
rdev->audio_status.status_bits != audio_status.status_bits ||
rdev->audio_status.category_code != audio_status.category_code) {
rdev->audio_status = audio_status;
changed = true;
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (!radeon_dig_encoder(encoder))
continue;
if (changed || r600_hdmi_buffer_status_changed(encoder))
r600_hdmi_update_audio_settings(encoder);
}
}
/*
* turn on/off audio engine
*/
static void r600_audio_engine_enable(struct radeon_device *rdev, bool enable)
{
u32 value = 0;
DRM_INFO("%s audio support\n", enable ? "Enabling" : "Disabling");
if (ASIC_IS_DCE4(rdev)) {
if (enable) {
value |= 0x81000000; /* Required to enable audio */
value |= 0x0e1000f0; /* fglrx sets that too */
}
WREG32(EVERGREEN_AUDIO_ENABLE, value);
} else {
WREG32_P(R600_AUDIO_ENABLE,
enable ? 0x81000000 : 0x0, ~0x81000000);
}
rdev->audio_enabled = enable;
}
/*
* initialize the audio vars
*/
int r600_audio_init(struct radeon_device *rdev)
{
if (!radeon_audio || !r600_audio_chipset_supported(rdev))
return 0;
r600_audio_engine_enable(rdev, true);
rdev->audio_status.channels = -1;
rdev->audio_status.rate = -1;
rdev->audio_status.bits_per_sample = -1;
rdev->audio_status.status_bits = 0;
rdev->audio_status.category_code = 0;
return 0;
}
/*
* atach the audio codec to the clock source of the encoder
*/
void r600_audio_set_clock(struct drm_encoder *encoder, int clock)
{
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 radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
int base_rate = 48000;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
WREG32_P(R600_AUDIO_TIMING, 0, ~0x301);
break;
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
WREG32_P(R600_AUDIO_TIMING, 0x100, ~0x301);
break;
default:
dev_err(rdev->dev, "Unsupported encoder type 0x%02X\n",
radeon_encoder->encoder_id);
return;
}
if (ASIC_IS_DCE4(rdev)) {
/* TODO: other PLLs? */
WREG32(EVERGREEN_AUDIO_PLL1_MUL, base_rate * 10);
WREG32(EVERGREEN_AUDIO_PLL1_DIV, clock * 10);
WREG32(EVERGREEN_AUDIO_PLL1_UNK, 0x00000071);
/* Select DTO source */
WREG32(0x5ac, radeon_crtc->crtc_id);
} else {
switch (dig->dig_encoder) {
case 0:
WREG32(R600_AUDIO_PLL1_MUL, base_rate * 50);
WREG32(R600_AUDIO_PLL1_DIV, clock * 100);
WREG32(R600_AUDIO_CLK_SRCSEL, 0);
break;
case 1:
WREG32(R600_AUDIO_PLL2_MUL, base_rate * 50);
WREG32(R600_AUDIO_PLL2_DIV, clock * 100);
WREG32(R600_AUDIO_CLK_SRCSEL, 1);
break;
default:
dev_err(rdev->dev,
"Unsupported DIG on encoder 0x%02X\n",
radeon_encoder->encoder_id);
return;
}
}
}
/*
* release the audio timer
* TODO: How to do this correctly on SMP systems?
*/
void r600_audio_fini(struct radeon_device *rdev)
{
if (!rdev->audio_enabled)
return;
r600_audio_engine_enable(rdev, false);
}
|