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path: root/drivers/gpu/drm/radeon/r600_audio.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/r600_audio.c')
-rw-r--r--drivers/gpu/drm/radeon/r600_audio.c215
1 files changed, 83 insertions, 132 deletions
diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index ba66f3093d4..7c4fa77f018 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -29,7 +29,28 @@
#include "radeon_asic.h"
#include "atom.h"
-#define AUDIO_TIMER_INTERVALL 100 /* 1/10 sekund should be enough */
+/*
+ * check if enc_priv stores radeon_encoder_atom_dig
+ */
+static bool radeon_dig_encoder(struct drm_encoder *encoder)
+{
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_LVDS:
+ case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ case ENCODER_OBJECT_ID_INTERNAL_DVO1:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
+ case ENCODER_OBJECT_ID_INTERNAL_DDI:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ return true;
+ }
+ return false;
+}
/*
* check if the chipset is supported
@@ -42,118 +63,85 @@ static int r600_audio_chipset_supported(struct radeon_device *rdev)
|| rdev->family == CHIP_RS740;
}
-/*
- * current number of channels
- */
-int r600_audio_channels(struct radeon_device *rdev)
+struct r600_audio r600_audio_status(struct radeon_device *rdev)
{
- return (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0x7) + 1;
-}
+ struct r600_audio status;
+ uint32_t value;
-/*
- * current bits per sample
- */
-int r600_audio_bits_per_sample(struct radeon_device *rdev)
-{
- uint32_t value = (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0xF0) >> 4;
- switch (value) {
- case 0x0: return 8;
- case 0x1: return 16;
- case 0x2: return 20;
- case 0x3: return 24;
- case 0x4: return 32;
- }
+ value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
- dev_err(rdev->dev, "Unknown bits per sample 0x%x using 16 instead\n",
- (int)value);
+ /* number of channels */
+ status.channels = (value & 0x7) + 1;
- return 16;
-}
-
-/*
- * current sampling rate in HZ
- */
-int r600_audio_rate(struct radeon_device *rdev)
-{
- uint32_t value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
- uint32_t result;
+ /* bits per sample */
+ switch ((value & 0xF0) >> 4) {
+ case 0x0:
+ status.bits_per_sample = 8;
+ break;
+ case 0x1:
+ status.bits_per_sample = 16;
+ break;
+ case 0x2:
+ status.bits_per_sample = 20;
+ break;
+ case 0x3:
+ status.bits_per_sample = 24;
+ break;
+ case 0x4:
+ status.bits_per_sample = 32;
+ break;
+ default:
+ dev_err(rdev->dev, "Unknown bits per sample 0x%x, using 16\n",
+ (int)value);
+ status.bits_per_sample = 16;
+ }
+ /* current sampling rate in HZ */
if (value & 0x4000)
- result = 44100;
+ status.rate = 44100;
else
- result = 48000;
+ status.rate = 48000;
+ status.rate *= ((value >> 11) & 0x7) + 1;
+ status.rate /= ((value >> 8) & 0x7) + 1;
- result *= ((value >> 11) & 0x7) + 1;
- result /= ((value >> 8) & 0x7) + 1;
+ value = RREG32(R600_AUDIO_STATUS_BITS);
- return result;
-}
+ /* iec 60958 status bits */
+ status.status_bits = value & 0xff;
-/*
- * iec 60958 status bits
- */
-uint8_t r600_audio_status_bits(struct radeon_device *rdev)
-{
- return RREG32(R600_AUDIO_STATUS_BITS) & 0xff;
-}
+ /* iec 60958 category code */
+ status.category_code = (value >> 8) & 0xff;
-/*
- * iec 60958 category code
- */
-uint8_t r600_audio_category_code(struct radeon_device *rdev)
-{
- return (RREG32(R600_AUDIO_STATUS_BITS) >> 8) & 0xff;
-}
-
-/*
- * schedule next audio update event
- */
-void r600_audio_schedule_polling(struct radeon_device *rdev)
-{
- mod_timer(&rdev->audio_timer,
- jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+ return status;
}
/*
* update all hdmi interfaces with current audio parameters
*/
-static void r600_audio_update_hdmi(unsigned long param)
+void r600_audio_update_hdmi(struct work_struct *work)
{
- struct radeon_device *rdev = (struct radeon_device *)param;
+ struct radeon_device *rdev = container_of(work, struct radeon_device,
+ audio_work);
struct drm_device *dev = rdev->ddev;
-
- int channels = r600_audio_channels(rdev);
- int rate = r600_audio_rate(rdev);
- int bps = r600_audio_bits_per_sample(rdev);
- uint8_t status_bits = r600_audio_status_bits(rdev);
- uint8_t category_code = r600_audio_category_code(rdev);
-
+ struct r600_audio audio_status = r600_audio_status(rdev);
struct drm_encoder *encoder;
- int changes = 0, still_going = 0;
-
- changes |= channels != rdev->audio_channels;
- changes |= rate != rdev->audio_rate;
- changes |= bps != rdev->audio_bits_per_sample;
- changes |= status_bits != rdev->audio_status_bits;
- changes |= category_code != rdev->audio_category_code;
-
- if (changes) {
- rdev->audio_channels = channels;
- rdev->audio_rate = rate;
- rdev->audio_bits_per_sample = bps;
- rdev->audio_status_bits = status_bits;
- rdev->audio_category_code = category_code;
+ bool changed = false;
+
+ if (rdev->audio_status.channels != audio_status.channels ||
+ rdev->audio_status.rate != audio_status.rate ||
+ rdev->audio_status.bits_per_sample != audio_status.bits_per_sample ||
+ rdev->audio_status.status_bits != audio_status.status_bits ||
+ rdev->audio_status.category_code != audio_status.category_code) {
+ rdev->audio_status = audio_status;
+ changed = true;
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- still_going |= radeon_encoder->audio_polling_active;
- if (changes || r600_hdmi_buffer_status_changed(encoder))
+ if (!radeon_dig_encoder(encoder))
+ continue;
+ if (changed || r600_hdmi_buffer_status_changed(encoder))
r600_hdmi_update_audio_settings(encoder);
}
-
- if (still_going)
- r600_audio_schedule_polling(rdev);
}
/*
@@ -177,7 +165,7 @@ static void r600_audio_engine_enable(struct radeon_device *rdev, bool enable)
}
/*
- * initialize the audio vars and register the update timer
+ * initialize the audio vars
*/
int r600_audio_init(struct radeon_device *rdev)
{
@@ -186,51 +174,16 @@ int r600_audio_init(struct radeon_device *rdev)
r600_audio_engine_enable(rdev, true);
- rdev->audio_channels = -1;
- rdev->audio_rate = -1;
- rdev->audio_bits_per_sample = -1;
- rdev->audio_status_bits = 0;
- rdev->audio_category_code = 0;
-
- setup_timer(
- &rdev->audio_timer,
- r600_audio_update_hdmi,
- (unsigned long)rdev);
+ rdev->audio_status.channels = -1;
+ rdev->audio_status.rate = -1;
+ rdev->audio_status.bits_per_sample = -1;
+ rdev->audio_status.status_bits = 0;
+ rdev->audio_status.category_code = 0;
return 0;
}
/*
- * enable the polling timer, to check for status changes
- */
-void r600_audio_enable_polling(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);
-
- DRM_DEBUG("r600_audio_enable_polling: %d\n",
- radeon_encoder->audio_polling_active);
- if (radeon_encoder->audio_polling_active)
- return;
-
- radeon_encoder->audio_polling_active = 1;
- if (rdev->audio_enabled)
- mod_timer(&rdev->audio_timer, jiffies + 1);
-}
-
-/*
- * disable the polling timer, so we get no more status updates
- */
-void r600_audio_disable_polling(struct drm_encoder *encoder)
-{
- struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- DRM_DEBUG("r600_audio_disable_polling: %d\n",
- radeon_encoder->audio_polling_active);
- radeon_encoder->audio_polling_active = 0;
-}
-
-/*
* atach the audio codec to the clock source of the encoder
*/
void r600_audio_set_clock(struct drm_encoder *encoder, int clock)
@@ -297,7 +250,5 @@ void r600_audio_fini(struct radeon_device *rdev)
if (!rdev->audio_enabled)
return;
- del_timer(&rdev->audio_timer);
-
r600_audio_engine_enable(rdev, false);
}