xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

radeon/audio: defined initial audio interface that gets initialized via detect() call

Browse Source 
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Slava Grigorev
2014-12-01 13:49:39 -05:00
committed by Alex Deucher
parent bfc1f97d8a
commit 1a626b68fb
6 changed files with 137 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

98
drivers/gpu/drm/radeon/radeon_audio.c
View File

@@ -23,12 +23,18 @@
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include "radeon.h"
#include "atom.h"
#include "radeon_audio.h"
void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
u8 enable_mask);
void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
u8 enable_mask);
u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg);
void dce6_endpoint_wreg(struct radeon_device *rdev,
u32 offset, u32 reg, u32 v);
static const u32 pin_offsets[7] =
{
@@ -41,6 +47,43 @@ static const u32 pin_offsets[7] =
(0x5e90 - 0x5e00),
};
static u32 radeon_audio_rreg(struct radeon_device *rdev, u32 offset, u32 reg)
{
return RREG32(reg);
}
static void radeon_audio_wreg(struct radeon_device *rdev, u32 offset,
u32 reg, u32 v)
{
WREG32(reg, v);
}
static struct radeon_audio_basic_funcs dce32_funcs = {
.endpoint_rreg = radeon_audio_rreg,
.endpoint_wreg = radeon_audio_wreg,
};
static struct radeon_audio_basic_funcs dce4_funcs = {
.endpoint_rreg = radeon_audio_rreg,
.endpoint_wreg = radeon_audio_wreg,
};
static struct radeon_audio_basic_funcs dce6_funcs = {
.endpoint_rreg = dce6_endpoint_rreg,
.endpoint_wreg = dce6_endpoint_wreg,
};
static void radeon_audio_interface_init(struct radeon_device *rdev)
{
if (ASIC_IS_DCE6(rdev)) {
rdev->audio.funcs = &dce6_funcs;
} else if (ASIC_IS_DCE4(rdev)) {
rdev->audio.funcs = &dce4_funcs;
} else {
rdev->audio.funcs = &dce32_funcs;
}
}
static int radeon_audio_chipset_supported(struct radeon_device *rdev)
{
return ASIC_IS_DCE2(rdev) && !ASIC_IS_NODCE(rdev);
@@ -79,12 +122,63 @@ int radeon_audio_init(struct radeon_device *rdev)
rdev->audio.pin[i].connected = false;
rdev->audio.pin[i].offset = pin_offsets[i];
rdev->audio.pin[i].id = i;
/* disable audio. it will be set up later */
}
radeon_audio_interface_init(rdev);
/* disable audio. it will be set up later */
for (i = 0; i < rdev->audio.num_pins; i++)
if (ASIC_IS_DCE6(rdev))
dce6_audio_enable(rdev, &rdev->audio.pin[i], false);
else
r600_audio_enable(rdev, &rdev->audio.pin[i], false);
}
return 0;
}
void radeon_audio_detect(struct drm_connector *connector,
enum drm_connector_status status)
{
if (!connector || !connector->encoder)
return;
if (status == connector_status_connected) {
int sink_type;
struct radeon_device *rdev = connector->encoder->dev->dev_private;
struct radeon_connector *radeon_connector;
struct radeon_encoder *radeon_encoder =
to_radeon_encoder(connector->encoder);
if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
radeon_encoder->audio = 0;
return;
}
radeon_connector = to_radeon_connector(connector);
sink_type = radeon_dp_getsinktype(radeon_connector);
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
radeon_encoder->audio = rdev->audio.dp_funcs;
else
radeon_encoder->audio = rdev->audio.hdmi_funcs;
/* TODO: set up the sads, etc. and set the audio enable_mask */
} else {
/* TODO: reset the audio enable_mask */
}
}
u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg)
{
if (rdev->audio.funcs->endpoint_rreg)
return rdev->audio.funcs->endpoint_rreg(rdev, offset, reg);
return 0;
}
void radeon_audio_endpoint_wreg(struct radeon_device *rdev, u32 offset,
u32 reg, u32 v)
{
if (rdev->audio.funcs->endpoint_wreg)
rdev->audio.funcs->endpoint_wreg(rdev, offset, reg, v);
}