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authorChristian Koenig <deathsimple@vodafone.de>2010-04-10 03:13:16 +0200
committerDave Airlie <airlied@redhat.com>2010-04-23 14:12:17 +1000
commitf2594933df9719bd2b0aaaa8ea9b2b850d6e1c42 (patch)
tree25948717c6531226188c3e051fa11edc09426bfb /drivers/gpu/drm/radeon/r600_hdmi.c
parent58bd086313ea0eda037f65b9bda2b3decb959a31 (diff)
drm/radeon/kms: HDMI irq support
Implements irq support for HDMI audio output. Now the polling timer is only enabled if irq support isn't available. Signed-off-by: Christian König <deathsimple@vodafone.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_hdmi.c')
-rw-r--r--drivers/gpu/drm/radeon/r600_hdmi.c54
1 files changed, 33 insertions, 21 deletions
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index d014472d0d3f..40b1aca6d1f4 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -290,17 +290,15 @@ void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
if (!offset)
return;
- if (r600_hdmi_is_audio_buffer_filled(encoder)) {
- /* disable audio workaround and start delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
+ if (!radeon_encoder->hdmi_audio_workaround ||
+ r600_hdmi_is_audio_buffer_filled(encoder)) {
- } else if (radeon_encoder->hdmi_audio_workaround) {
- /* enable audio workaround and start delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
+ /* disable audio workaround */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
} else {
- /* disable audio workaround and stop delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00000000, ~0x00001001);
+ /* enable audio workaround */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
}
}
@@ -345,9 +343,6 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
/* audio packets per line, does anyone know how to calc this ? */
WREG32_P(offset+R600_HDMI_CNTL, 0x00040000, ~0x001F0000);
-
- /* update? reset? don't realy know */
- WREG32_P(offset+R600_HDMI_CNTL, 0x14000000, ~0x14000000);
}
/*
@@ -416,9 +411,6 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
r600_hdmi_audioinfoframe(encoder, channels-1, 0, 0, 0, 0, 0, 0, 0);
r600_hdmi_audio_workaround(encoder);
-
- /* update? reset? don't realy know */
- WREG32_P(offset+R600_HDMI_CNTL, 0x04000000, ~0x04000000);
}
static int r600_hdmi_find_free_block(struct drm_device *dev)
@@ -487,6 +479,7 @@ void r600_hdmi_enable(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);
+ uint32_t offset;
if (ASIC_IS_DCE4(rdev))
return;
@@ -500,10 +493,10 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
}
}
+ offset = radeon_encoder->hdmi_offset;
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0x1, ~0x1);
} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
- int offset = radeon_encoder->hdmi_offset;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0x4, ~0x4);
@@ -519,7 +512,20 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
}
}
- r600_audio_enable_polling(encoder);
+ if (rdev->irq.installed
+ && rdev->family != CHIP_RS600
+ && rdev->family != CHIP_RS690
+ && rdev->family != CHIP_RS740) {
+
+ /* if irq is available use it */
+ rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = true;
+ radeon_irq_set(rdev);
+
+ r600_audio_disable_polling(encoder);
+ } else {
+ /* if not fallback to polling */
+ r600_audio_enable_polling(encoder);
+ }
DRM_DEBUG("Enabling HDMI interface @ 0x%04X for encoder 0x%x\n",
radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
@@ -533,24 +539,30 @@ void r600_hdmi_disable(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);
+ uint8_t offset;
if (ASIC_IS_DCE4(rdev))
return;
- if (!radeon_encoder->hdmi_offset) {
+ offset = radeon_encoder->hdmi_offset;
+ if (!offset) {
dev_err(rdev->dev, "Disabling not enabled HDMI\n");
return;
}
- r600_audio_disable_polling(encoder);
-
DRM_DEBUG("Disabling HDMI interface @ 0x%04X for encoder 0x%x\n",
- radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
+ offset, radeon_encoder->encoder_id);
+
+ /* disable irq */
+ rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = false;
+ radeon_irq_set(rdev);
+
+ /* disable polling */
+ r600_audio_disable_polling(encoder);
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0, ~0x1);
} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
- int offset = radeon_encoder->hdmi_offset;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0, ~0x4);