mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 06:12:08 +00:00
7cc0a3d85b
Make sure the audio pin is valid before accessing its members. Noticed by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
279 lines
8.2 KiB
C
279 lines
8.2 KiB
C
/*
|
|
* Copyright 2013 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.
|
|
*
|
|
*/
|
|
#include <linux/hdmi.h>
|
|
#include <drm/drmP.h>
|
|
#include "radeon.h"
|
|
#include "sid.h"
|
|
|
|
static u32 dce6_endpoint_rreg(struct radeon_device *rdev,
|
|
u32 block_offset, u32 reg)
|
|
{
|
|
u32 r;
|
|
|
|
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
|
|
r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset);
|
|
return r;
|
|
}
|
|
|
|
static void dce6_endpoint_wreg(struct radeon_device *rdev,
|
|
u32 block_offset, u32 reg, u32 v)
|
|
{
|
|
if (ASIC_IS_DCE8(rdev))
|
|
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
|
|
else
|
|
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset,
|
|
AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg));
|
|
WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v);
|
|
}
|
|
|
|
#define RREG32_ENDPOINT(block, reg) dce6_endpoint_rreg(rdev, (block), (reg))
|
|
#define WREG32_ENDPOINT(block, reg, v) dce6_endpoint_wreg(rdev, (block), (reg), (v))
|
|
|
|
|
|
static void dce6_afmt_get_connected_pins(struct radeon_device *rdev)
|
|
{
|
|
int i;
|
|
u32 offset, tmp;
|
|
|
|
for (i = 0; i < rdev->audio.num_pins; i++) {
|
|
offset = rdev->audio.pin[i].offset;
|
|
tmp = RREG32_ENDPOINT(offset,
|
|
AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
|
|
if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1)
|
|
rdev->audio.pin[i].connected = false;
|
|
else
|
|
rdev->audio.pin[i].connected = true;
|
|
}
|
|
}
|
|
|
|
struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev)
|
|
{
|
|
int i;
|
|
|
|
dce6_afmt_get_connected_pins(rdev);
|
|
|
|
for (i = 0; i < rdev->audio.num_pins; i++) {
|
|
if (rdev->audio.pin[i].connected)
|
|
return &rdev->audio.pin[i];
|
|
}
|
|
DRM_ERROR("No connected audio pins found!\n");
|
|
return NULL;
|
|
}
|
|
|
|
void dce6_afmt_select_pin(struct drm_encoder *encoder)
|
|
{
|
|
struct radeon_device *rdev = encoder->dev->dev_private;
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
|
|
u32 offset = dig->afmt->offset;
|
|
|
|
if (!dig->afmt->pin)
|
|
return;
|
|
|
|
WREG32(AFMT_AUDIO_SRC_CONTROL + offset,
|
|
AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));
|
|
}
|
|
|
|
void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder)
|
|
{
|
|
struct radeon_device *rdev = encoder->dev->dev_private;
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
|
|
struct drm_connector *connector;
|
|
struct radeon_connector *radeon_connector = NULL;
|
|
u32 offset, tmp;
|
|
u8 *sadb;
|
|
int sad_count;
|
|
|
|
if (!dig->afmt->pin)
|
|
return;
|
|
|
|
offset = dig->afmt->pin->offset;
|
|
|
|
list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
|
|
if (connector->encoder == encoder)
|
|
radeon_connector = to_radeon_connector(connector);
|
|
}
|
|
|
|
if (!radeon_connector) {
|
|
DRM_ERROR("Couldn't find encoder's connector\n");
|
|
return;
|
|
}
|
|
|
|
sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb);
|
|
if (sad_count < 0) {
|
|
DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
|
|
return;
|
|
}
|
|
|
|
/* program the speaker allocation */
|
|
tmp = RREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
|
|
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
|
|
/* set HDMI mode */
|
|
tmp |= HDMI_CONNECTION;
|
|
if (sad_count)
|
|
tmp |= SPEAKER_ALLOCATION(sadb[0]);
|
|
else
|
|
tmp |= SPEAKER_ALLOCATION(5); /* stereo */
|
|
WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
|
|
|
|
kfree(sadb);
|
|
}
|
|
|
|
void dce6_afmt_write_sad_regs(struct drm_encoder *encoder)
|
|
{
|
|
struct radeon_device *rdev = encoder->dev->dev_private;
|
|
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
|
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
|
|
u32 offset;
|
|
struct drm_connector *connector;
|
|
struct radeon_connector *radeon_connector = NULL;
|
|
struct cea_sad *sads;
|
|
int i, sad_count;
|
|
|
|
static const u16 eld_reg_to_type[][2] = {
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
|
|
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
|
|
};
|
|
|
|
if (!dig->afmt->pin)
|
|
return;
|
|
|
|
offset = dig->afmt->pin->offset;
|
|
|
|
list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
|
|
if (connector->encoder == encoder)
|
|
radeon_connector = to_radeon_connector(connector);
|
|
}
|
|
|
|
if (!radeon_connector) {
|
|
DRM_ERROR("Couldn't find encoder's connector\n");
|
|
return;
|
|
}
|
|
|
|
sad_count = drm_edid_to_sad(radeon_connector->edid, &sads);
|
|
if (sad_count < 0) {
|
|
DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
|
|
return;
|
|
}
|
|
BUG_ON(!sads);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
|
|
u32 value = 0;
|
|
int j;
|
|
|
|
for (j = 0; j < sad_count; j++) {
|
|
struct cea_sad *sad = &sads[j];
|
|
|
|
if (sad->format == eld_reg_to_type[i][1]) {
|
|
value = MAX_CHANNELS(sad->channels) |
|
|
DESCRIPTOR_BYTE_2(sad->byte2) |
|
|
SUPPORTED_FREQUENCIES(sad->freq);
|
|
if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
|
|
value |= SUPPORTED_FREQUENCIES_STEREO(sad->freq);
|
|
break;
|
|
}
|
|
}
|
|
WREG32_ENDPOINT(offset, eld_reg_to_type[i][0], value);
|
|
}
|
|
|
|
kfree(sads);
|
|
}
|
|
|
|
static int dce6_audio_chipset_supported(struct radeon_device *rdev)
|
|
{
|
|
return !ASIC_IS_NODCE(rdev);
|
|
}
|
|
|
|
static void dce6_audio_enable(struct radeon_device *rdev,
|
|
struct r600_audio_pin *pin,
|
|
bool enable)
|
|
{
|
|
WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOTPLUG_CONTROL,
|
|
AUDIO_ENABLED);
|
|
DRM_INFO("%s audio %d support\n", enable ? "Enabling" : "Disabling", pin->id);
|
|
}
|
|
|
|
static const u32 pin_offsets[7] =
|
|
{
|
|
(0x5e00 - 0x5e00),
|
|
(0x5e18 - 0x5e00),
|
|
(0x5e30 - 0x5e00),
|
|
(0x5e48 - 0x5e00),
|
|
(0x5e60 - 0x5e00),
|
|
(0x5e78 - 0x5e00),
|
|
(0x5e90 - 0x5e00),
|
|
};
|
|
|
|
int dce6_audio_init(struct radeon_device *rdev)
|
|
{
|
|
int i;
|
|
|
|
if (!radeon_audio || !dce6_audio_chipset_supported(rdev))
|
|
return 0;
|
|
|
|
rdev->audio.enabled = true;
|
|
|
|
if (ASIC_IS_DCE8(rdev))
|
|
rdev->audio.num_pins = 7;
|
|
else
|
|
rdev->audio.num_pins = 6;
|
|
|
|
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;
|
|
dce6_audio_enable(rdev, &rdev->audio.pin[i], true);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dce6_audio_fini(struct radeon_device *rdev)
|
|
{
|
|
int i;
|
|
|
|
if (!rdev->audio.enabled)
|
|
return;
|
|
|
|
for (i = 0; i < rdev->audio.num_pins; i++)
|
|
dce6_audio_enable(rdev, &rdev->audio.pin[i], false);
|
|
|
|
rdev->audio.enabled = false;
|
|
}
|