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drm/radeon/kms/atom: add proper external encoders support

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These are external encoder chips connected via DVO or DP.
The actual external encoder programming is handled by the
kms encoder functions for primary encoder.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-11-16 12:09:42 -05:00 committed by Dave Airlie
parent 99999aaa09
commit 3e4b99828d
2 changed files with 184 additions and 0 deletions
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183
drivers/gpu/drm/radeon/radeon_encoders.c
View File

@ -229,6 +229,27 @@ radeon_get_connector_for_encoder(struct drm_encoder *encoder)
return NULL;
}
struct drm_encoder *radeon_atom_get_external_encoder(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_encoder *other_encoder;
struct radeon_encoder *other_radeon_encoder;
if (radeon_encoder->is_ext_encoder)
return NULL;
list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
if (other_encoder == encoder)
continue;
other_radeon_encoder = to_radeon_encoder(other_encoder);
if (other_radeon_encoder->is_ext_encoder &&
(radeon_encoder->devices & other_radeon_encoder->devices))
return other_encoder;
}
return NULL;
}
void radeon_panel_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode)
{
@ -1021,6 +1042,75 @@ atombios_set_edp_panel_power(struct drm_connector *connector, int action)
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
}
union external_encoder_control {
EXTERNAL_ENCODER_CONTROL_PS_ALLOCATION v1;
};
static void
atombios_external_encoder_setup(struct drm_encoder *encoder,
struct drm_encoder *ext_encoder,
int action)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
union external_encoder_control args;
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
int index = GetIndexIntoMasterTable(COMMAND, ExternalEncoderControl);
u8 frev, crev;
int dp_clock = 0;
int dp_lane_count = 0;
int connector_object_id = 0;
if (connector) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct radeon_connector_atom_dig *dig_connector =
radeon_connector->con_priv;
dp_clock = dig_connector->dp_clock;
dp_lane_count = dig_connector->dp_lane_count;
connector_object_id =
(radeon_connector->connector_object_id & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
}
memset(&args, 0, sizeof(args));
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
return;
switch (frev) {
case 1:
/* no params on frev 1 */
break;
case 2:
switch (crev) {
case 1:
case 2:
args.v1.sDigEncoder.ucAction = action;
args.v1.sDigEncoder.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
args.v1.sDigEncoder.ucEncoderMode = atombios_get_encoder_mode(encoder);
if (args.v1.sDigEncoder.ucEncoderMode == ATOM_ENCODER_MODE_DP) {
if (dp_clock == 270000)
args.v1.sDigEncoder.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ;
args.v1.sDigEncoder.ucLaneNum = dp_lane_count;
} else if (radeon_encoder->pixel_clock > 165000)
args.v1.sDigEncoder.ucLaneNum = 8;
else
args.v1.sDigEncoder.ucLaneNum = 4;
break;
default:
DRM_ERROR("Unknown table version: %d, %d\n", frev, crev);
return;
}
break;
default:
DRM_ERROR("Unknown table version: %d, %d\n", frev, crev);
return;
}
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
}
static void
atombios_yuv_setup(struct drm_encoder *encoder, bool enable)
{
@ -1064,6 +1154,7 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_encoder *ext_encoder = radeon_atom_get_external_encoder(encoder);
DISPLAY_DEVICE_OUTPUT_CONTROL_PS_ALLOCATION args;
int index = 0;
bool is_dig = false;
@ -1191,6 +1282,24 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
break;
}
}
if (ext_encoder) {
int action;
switch (mode) {
case DRM_MODE_DPMS_ON:
default:
action = ATOM_ENABLE;
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
action = ATOM_DISABLE;
break;
}
atombios_external_encoder_setup(encoder, ext_encoder, action);
}
radeon_atombios_encoder_dpms_scratch_regs(encoder, (mode == DRM_MODE_DPMS_ON) ? true : false);
}
@ -1438,6 +1547,7 @@ radeon_atom_encoder_mode_set(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);
struct drm_encoder *ext_encoder = radeon_atom_get_external_encoder(encoder);
radeon_encoder->pixel_clock = adjusted_mode->clock;
@ -1498,6 +1608,11 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
}
break;
}
if (ext_encoder) {
atombios_external_encoder_setup(encoder, ext_encoder, ATOM_ENABLE);
}
atombios_apply_encoder_quirks(encoder, adjusted_mode);
if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_HDMI) {
@ -1698,6 +1813,53 @@ disable_done:
radeon_encoder->active_device = 0;
}
/* these are handled by the primary encoders */
static void radeon_atom_ext_prepare(struct drm_encoder *encoder)
{
}
static void radeon_atom_ext_commit(struct drm_encoder *encoder)
{
}
static void
radeon_atom_ext_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
}
static void radeon_atom_ext_disable(struct drm_encoder *encoder)
{
}
static void
radeon_atom_ext_dpms(struct drm_encoder *encoder, int mode)
{
}
static bool radeon_atom_ext_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
return true;
}
static const struct drm_encoder_helper_funcs radeon_atom_ext_helper_funcs = {
.dpms = radeon_atom_ext_dpms,
.mode_fixup = radeon_atom_ext_mode_fixup,
.prepare = radeon_atom_ext_prepare,
.mode_set = radeon_atom_ext_mode_set,
.commit = radeon_atom_ext_commit,
.disable = radeon_atom_ext_disable,
/* no detect for TMDS/LVDS yet */
};
static const struct drm_encoder_helper_funcs radeon_atom_dig_helper_funcs = {
.dpms = radeon_atom_encoder_dpms,
.mode_fixup = radeon_atom_mode_fixup,
@ -1807,6 +1969,7 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_enum, uint32_t
radeon_encoder->devices = supported_device;
radeon_encoder->rmx_type = RMX_OFF;
radeon_encoder->underscan_type = UNDERSCAN_OFF;
radeon_encoder->is_ext_encoder = false;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_LVDS:
@ -1848,6 +2011,9 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_enum, uint32_t
radeon_encoder->rmx_type = RMX_FULL;
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_LVDS);
radeon_encoder->enc_priv = radeon_atombios_get_lvds_info(radeon_encoder);
} else if (radeon_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT)) {
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_DAC);
radeon_encoder->enc_priv = radeon_atombios_set_dig_info(radeon_encoder);
} else {
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_TMDS);
radeon_encoder->enc_priv = radeon_atombios_set_dig_info(radeon_encoder);
@ -1856,5 +2022,22 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_enum, uint32_t
}
drm_encoder_helper_add(encoder, &radeon_atom_dig_helper_funcs);
break;
case ENCODER_OBJECT_ID_SI170B:
case ENCODER_OBJECT_ID_CH7303:
case ENCODER_OBJECT_ID_EXTERNAL_SDVOA:
case ENCODER_OBJECT_ID_EXTERNAL_SDVOB:
case ENCODER_OBJECT_ID_TITFP513:
case ENCODER_OBJECT_ID_VT1623:
case ENCODER_OBJECT_ID_HDMI_SI1930:
/* these are handled by the primary encoders */
radeon_encoder->is_ext_encoder = true;
if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_LVDS);
else if (radeon_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT))
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_DAC);
else
drm_encoder_init(dev, encoder, &radeon_atom_enc_funcs, DRM_MODE_ENCODER_TMDS);
drm_encoder_helper_add(encoder, &radeon_atom_ext_helper_funcs);
break;
}
}

1
drivers/gpu/drm/radeon/radeon_mode.h
View File

@ -375,6 +375,7 @@ struct radeon_encoder {
int hdmi_config_offset;
int hdmi_audio_workaround;
int hdmi_buffer_status;
bool is_ext_encoder;
};
struct radeon_connector_atom_dig {