![Rafał Miłecki](/assets/img/avatar_default.png)
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
282 lines
7.4 KiB
C
282 lines
7.4 KiB
C
/*
|
|
* 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 "drmP.h"
|
|
#include "radeon.h"
|
|
#include "radeon_reg.h"
|
|
#include "atom.h"
|
|
|
|
#define AUDIO_TIMER_INTERVALL 100 /* 1/10 sekund should be enough */
|
|
|
|
/*
|
|
* check if the chipset is supported
|
|
*/
|
|
static int r600_audio_chipset_supported(struct radeon_device *rdev)
|
|
{
|
|
return (rdev->family >= CHIP_R600 && rdev->family < CHIP_CEDAR)
|
|
|| rdev->family == CHIP_RS600
|
|
|| rdev->family == CHIP_RS690
|
|
|| rdev->family == CHIP_RS740;
|
|
}
|
|
|
|
/*
|
|
* current number of channels
|
|
*/
|
|
int r600_audio_channels(struct radeon_device *rdev)
|
|
{
|
|
return (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0x7) + 1;
|
|
}
|
|
|
|
/*
|
|
* current bits per sample
|
|
*/
|
|
int r600_audio_bits_per_sample(struct radeon_device *rdev)
|
|
{
|
|
uint32_t value = (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0xF0) >> 4;
|
|
switch (value) {
|
|
case 0x0: return 8;
|
|
case 0x1: return 16;
|
|
case 0x2: return 20;
|
|
case 0x3: return 24;
|
|
case 0x4: return 32;
|
|
}
|
|
|
|
dev_err(rdev->dev, "Unknown bits per sample 0x%x using 16 instead\n",
|
|
(int)value);
|
|
|
|
return 16;
|
|
}
|
|
|
|
/*
|
|
* current sampling rate in HZ
|
|
*/
|
|
int r600_audio_rate(struct radeon_device *rdev)
|
|
{
|
|
uint32_t value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
|
|
uint32_t result;
|
|
|
|
if (value & 0x4000)
|
|
result = 44100;
|
|
else
|
|
result = 48000;
|
|
|
|
result *= ((value >> 11) & 0x7) + 1;
|
|
result /= ((value >> 8) & 0x7) + 1;
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* iec 60958 status bits
|
|
*/
|
|
uint8_t r600_audio_status_bits(struct radeon_device *rdev)
|
|
{
|
|
return RREG32(R600_AUDIO_STATUS_BITS) & 0xff;
|
|
}
|
|
|
|
/*
|
|
* iec 60958 category code
|
|
*/
|
|
uint8_t r600_audio_category_code(struct radeon_device *rdev)
|
|
{
|
|
return (RREG32(R600_AUDIO_STATUS_BITS) >> 8) & 0xff;
|
|
}
|
|
|
|
/*
|
|
* schedule next audio update event
|
|
*/
|
|
void r600_audio_schedule_polling(struct radeon_device *rdev)
|
|
{
|
|
mod_timer(&rdev->audio_timer,
|
|
jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
|
|
}
|
|
|
|
/*
|
|
* update all hdmi interfaces with current audio parameters
|
|
*/
|
|
static void r600_audio_update_hdmi(unsigned long param)
|
|
{
|
|
struct radeon_device *rdev = (struct radeon_device *)param;
|
|
struct drm_device *dev = rdev->ddev;
|
|
|
|
int channels = r600_audio_channels(rdev);
|
|
int rate = r600_audio_rate(rdev);
|
|
int bps = r600_audio_bits_per_sample(rdev);
|
|
uint8_t status_bits = r600_audio_status_bits(rdev);
|
|
uint8_t category_code = r600_audio_category_code(rdev);
|
|
|
|
struct drm_encoder *encoder;
|
|
int changes = 0, still_going = 0;
|
|
|
|
changes |= channels != rdev->audio_channels;
|
|
changes |= rate != rdev->audio_rate;
|
|
changes |= bps != rdev->audio_bits_per_sample;
|
|
changes |= status_bits != rdev->audio_status_bits;
|
|
changes |= category_code != rdev->audio_category_code;
|
|
|
|
if (changes) {
|
|
rdev->audio_channels = channels;
|
|
rdev->audio_rate = rate;
|
|
rdev->audio_bits_per_sample = bps;
|
|
rdev->audio_status_bits = status_bits;
|
|
rdev->audio_category_code = category_code;
|
|
}
|
|
|
|
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
still_going |= radeon_encoder->audio_polling_active;
|
|
if (changes || r600_hdmi_buffer_status_changed(encoder))
|
|
r600_hdmi_update_audio_settings(encoder);
|
|
}
|
|
|
|
if (still_going)
|
|
r600_audio_schedule_polling(rdev);
|
|
}
|
|
|
|
/*
|
|
* turn on/off audio engine
|
|
*/
|
|
static void r600_audio_engine_enable(struct radeon_device *rdev, bool enable)
|
|
{
|
|
DRM_INFO("%s audio support\n", enable ? "Enabling" : "Disabling");
|
|
WREG32_P(R600_AUDIO_ENABLE, enable ? 0x81000000 : 0x0, ~0x81000000);
|
|
rdev->audio_enabled = enable;
|
|
}
|
|
|
|
/*
|
|
* initialize the audio vars and register the update timer
|
|
*/
|
|
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_channels = -1;
|
|
rdev->audio_rate = -1;
|
|
rdev->audio_bits_per_sample = -1;
|
|
rdev->audio_status_bits = 0;
|
|
rdev->audio_category_code = 0;
|
|
|
|
setup_timer(
|
|
&rdev->audio_timer,
|
|
r600_audio_update_hdmi,
|
|
(unsigned long)rdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* enable the polling timer, to check for status changes
|
|
*/
|
|
void r600_audio_enable_polling(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);
|
|
|
|
DRM_DEBUG("r600_audio_enable_polling: %d\n",
|
|
radeon_encoder->audio_polling_active);
|
|
if (radeon_encoder->audio_polling_active)
|
|
return;
|
|
|
|
radeon_encoder->audio_polling_active = 1;
|
|
if (rdev->audio_enabled)
|
|
mod_timer(&rdev->audio_timer, jiffies + 1);
|
|
}
|
|
|
|
/*
|
|
* disable the polling timer, so we get no more status updates
|
|
*/
|
|
void r600_audio_disable_polling(struct drm_encoder *encoder)
|
|
{
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
DRM_DEBUG("r600_audio_disable_polling: %d\n",
|
|
radeon_encoder->audio_polling_active);
|
|
radeon_encoder->audio_polling_active = 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;
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
del_timer(&rdev->audio_timer);
|
|
|
|
r600_audio_engine_enable(rdev, false);
|
|
}
|