/*
* Copyright 2014 Advanced Micro Devices, Inc.
*
* 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: Slava Grigorev <slava.grigorev@amd.com>
*/
#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);
void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count);
void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count);
void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count);
void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
struct drm_connector *connector, struct drm_display_mode *mode);
void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
struct drm_connector *connector, struct drm_display_mode *mode);
static const u32 pin_offsets[7] =
{
(0x5e00 - 0x5e00),
(0x5e18 - 0x5e00),
(0x5e30 - 0x5e00),
(0x5e48 - 0x5e00),
(0x5e60 - 0x5e00),
(0x5e78 - 0x5e00),
(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 struct radeon_audio_funcs dce32_hdmi_funcs = {
.write_sad_regs = dce3_2_afmt_write_sad_regs,
.write_speaker_allocation = dce3_2_afmt_hdmi_write_speaker_allocation,
};
static struct radeon_audio_funcs dce32_dp_funcs = {
.write_sad_regs = dce3_2_afmt_write_sad_regs,
.write_speaker_allocation = dce3_2_afmt_dp_write_speaker_allocation,
};
static struct radeon_audio_funcs dce4_hdmi_funcs = {
.write_sad_regs = evergreen_hdmi_write_sad_regs,
.write_speaker_allocation = dce4_afmt_hdmi_write_speaker_allocation,
.write_latency_fields = dce4_afmt_write_latency_fields,
};
static struct radeon_audio_funcs dce4_dp_funcs = {
.write_sad_regs = evergreen_hdmi_write_sad_regs,
.write_speaker_allocation = dce4_afmt_dp_write_speaker_allocation,
.write_latency_fields = dce4_afmt_write_latency_fields,
};
static struct radeon_audio_funcs dce6_hdmi_funcs = {
.write_sad_regs = dce6_afmt_write_sad_regs,
.write_speaker_allocation = dce6_afmt_hdmi_write_speaker_allocation,
.write_latency_fields = dce6_afmt_write_latency_fields,
};
static struct radeon_audio_funcs dce6_dp_funcs = {
.write_sad_regs = dce6_afmt_write_sad_regs,
.write_speaker_allocation = dce6_afmt_dp_write_speaker_allocation,
.write_latency_fields = dce6_afmt_write_latency_fields,
};
static void radeon_audio_interface_init(struct radeon_device *rdev)
{
if (ASIC_IS_DCE6(rdev)) {
rdev->audio.funcs = &dce6_funcs;
rdev->audio.hdmi_funcs = &dce6_hdmi_funcs;
rdev->audio.dp_funcs = &dce6_dp_funcs;
} else if (ASIC_IS_DCE4(rdev)) {
rdev->audio.funcs = &dce4_funcs;
rdev->audio.hdmi_funcs = &dce4_hdmi_funcs;
rdev->audio.dp_funcs = &dce4_dp_funcs;
} else {
rdev->audio.funcs = &dce32_funcs;
rdev->audio.hdmi_funcs = &dce32_hdmi_funcs;
rdev->audio.dp_funcs = &dce32_dp_funcs;
}
}
static int radeon_audio_chipset_supported(struct radeon_device *rdev)
{
return ASIC_IS_DCE2(rdev) && !ASIC_IS_NODCE(rdev);
}
int radeon_audio_init(struct radeon_device *rdev)
{
int i;
if (!radeon_audio || !radeon_audio_chipset_supported(rdev))
return 0;
rdev->audio.enabled = true;
if (ASIC_IS_DCE83(rdev)) /* KB: 2 streams, 3 endpoints */
rdev->audio.num_pins = 3;
else if (ASIC_IS_DCE81(rdev)) /* KV: 4 streams, 7 endpoints */
rdev->audio.num_pins = 7;
else if (ASIC_IS_DCE8(rdev)) /* BN/HW: 6 streams, 7 endpoints */
rdev->audio.num_pins = 7;
else if (ASIC_IS_DCE64(rdev)) /* OL: 2 streams, 2 endpoints */
rdev->audio.num_pins = 2;
else if (ASIC_IS_DCE61(rdev)) /* TN: 4 streams, 6 endpoints */
rdev->audio.num_pins = 6;
else if (ASIC_IS_DCE6(rdev)) /* SI: 6 streams, 6 endpoints */
rdev->audio.num_pins = 6;
else
rdev->audio.num_pins = 1;
for (i = 0; i < rdev->audio.num_pins; i++) {
rdev->audio.pin[i].channels = -1;
rdev->audio.pin[i].rate = -1;
rdev->audio.pin[i].bits_per_sample = -1;
rdev->audio.pin[i].status_bits = 0;
rdev->audio.pin[i].category_code = 0;
rdev->audio.pin[i].connected = false;
rdev->audio.pin[i].offset = pin_offsets[i];
rdev->audio.pin[i].id = i;
}
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);
}
void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
struct cea_sad *sads;
int sad_count;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return;
}
sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads);
if (sad_count <= 0) {
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
return;
}
BUG_ON(!sads);
radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs)
radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count);
kfree(sads);
}
void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
u8 *sadb = NULL;
int sad_count;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return;
}
sad_count = drm_edid_to_speaker_allocation(
radeon_connector_edid(connector), &sadb);
if (sad_count < 0) {
DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
sad_count = 0;
}
if (radeon_encoder->audio && radeon_encoder->audio->write_speaker_allocation)
radeon_encoder->audio->write_speaker_allocation(encoder, sadb, sad_count);
kfree(sadb);
}
void radeon_audio_write_latency_fields(struct drm_encoder *encoder,
struct drm_display_mode *mode)
{
struct radeon_encoder *radeon_encoder;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = 0;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return;
}
radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->audio && radeon_encoder->audio->write_latency_fields)
radeon_encoder->audio->write_latency_fields(encoder, connector, mode);
}
