[deathsimple/drm-next-3.16][4/4] drm/radeon/hdmi: DCE2: simplify audio workaround
Rafał Miłecki
zajec5 at gmail.com
Wed May 14 14:27:59 PDT 2014
Thanks to advanced RE of fglrx we finally know what exactly needs to be
handled of AFMT change.
This has been tested for possible regressions on:
1) DCE2 D2400 (RV610)
2) DCE3 HD3470 (RV620)
For a reference and details see:
https://bugzilla.kernel.org/show_bug.cgi?id=76231
Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
---
drivers/gpu/drm/radeon/r600_hdmi.c | 82 ++++++++++----------------------------
drivers/gpu/drm/radeon/r600d.h | 15 +++++++
2 files changed, 37 insertions(+), 60 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 8c36587..033a88d 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -440,14 +440,16 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001);
WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001);
- r600_hdmi_audio_workaround(encoder);
-
/* enable audio after to setting up hw */
r600_audio_enable(rdev, dig->afmt->pin, true);
}
-/*
- * update settings with current parameters from audio engine
+/**
+ * r600_hdmi_update_audio_settings - Update audio infoframe
+ *
+ * @encoder: drm encoder
+ *
+ * Gets info about current audio stream and updates audio infoframe.
*/
void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
{
@@ -459,7 +461,7 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
struct hdmi_audio_infoframe frame;
uint32_t offset;
- uint32_t iec;
+ uint32_t value;
ssize_t err;
if (!dig->afmt || !dig->afmt->enabled)
@@ -472,60 +474,6 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
(int)audio.status_bits, (int)audio.category_code);
- iec = 0;
- if (audio.status_bits & AUDIO_STATUS_PROFESSIONAL)
- iec |= 1 << 0;
- if (audio.status_bits & AUDIO_STATUS_NONAUDIO)
- iec |= 1 << 1;
- if (audio.status_bits & AUDIO_STATUS_COPYRIGHT)
- iec |= 1 << 2;
- if (audio.status_bits & AUDIO_STATUS_EMPHASIS)
- iec |= 1 << 3;
-
- iec |= HDMI0_60958_CS_CATEGORY_CODE(audio.category_code);
-
- switch (audio.rate) {
- case 32000:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x3);
- break;
- case 44100:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x0);
- break;
- case 48000:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x2);
- break;
- case 88200:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x8);
- break;
- case 96000:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xa);
- break;
- case 176400:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xc);
- break;
- case 192000:
- iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xe);
- break;
- }
-
- WREG32(HDMI0_60958_0 + offset, iec);
-
- iec = 0;
- switch (audio.bits_per_sample) {
- case 16:
- iec |= HDMI0_60958_CS_WORD_LENGTH(0x2);
- break;
- case 20:
- iec |= HDMI0_60958_CS_WORD_LENGTH(0x3);
- break;
- case 24:
- iec |= HDMI0_60958_CS_WORD_LENGTH(0xb);
- break;
- }
- if (audio.status_bits & AUDIO_STATUS_V)
- iec |= 0x5 << 16;
- WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f);
-
err = hdmi_audio_infoframe_init(&frame);
if (err < 0) {
DRM_ERROR("failed to setup audio infoframe\n");
@@ -540,8 +488,22 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
return;
}
+ value = RREG32(HDMI0_AUDIO_PACKET_CONTROL + offset);
+ if (value & HDMI0_AUDIO_TEST_EN)
+ WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
+ value & ~HDMI0_AUDIO_TEST_EN);
+
+ WREG32_OR(HDMI0_CONTROL + offset,
+ HDMI0_ERROR_ACK);
+
+ WREG32_AND(HDMI0_INFOFRAME_CONTROL0 + offset,
+ ~HDMI0_AUDIO_INFO_SOURCE);
+
r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer));
- r600_hdmi_audio_workaround(encoder);
+
+ WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
+ HDMI0_AUDIO_INFO_CONT |
+ HDMI0_AUDIO_INFO_UPDATE);
}
/*
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 37455f6..b140c93 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -1029,9 +1029,11 @@
#define HDMI0_AUDIO_PACKET_CONTROL 0x7408
# define HDMI0_AUDIO_SAMPLE_SEND (1 << 0)
# define HDMI0_AUDIO_DELAY_EN(x) (((x) & 3) << 4)
+# define HDMI0_AUDIO_DELAY_EN_MASK (3 << 4)
# define HDMI0_AUDIO_SEND_MAX_PACKETS (1 << 8)
# define HDMI0_AUDIO_TEST_EN (1 << 12)
# define HDMI0_AUDIO_PACKETS_PER_LINE(x) (((x) & 0x1f) << 16)
+# define HDMI0_AUDIO_PACKETS_PER_LINE_MASK (0x1f << 16)
# define HDMI0_AUDIO_CHANNEL_SWAP (1 << 24)
# define HDMI0_60958_CS_UPDATE (1 << 26)
# define HDMI0_AZ_FORMAT_WTRIG_MASK (1 << 28)
@@ -1054,7 +1056,9 @@
# define HDMI0_MPEG_INFO_UPDATE (1 << 10)
#define HDMI0_INFOFRAME_CONTROL1 0x7418
# define HDMI0_AVI_INFO_LINE(x) (((x) & 0x3f) << 0)
+# define HDMI0_AVI_INFO_LINE_MASK (0x3f << 0)
# define HDMI0_AUDIO_INFO_LINE(x) (((x) & 0x3f) << 8)
+# define HDMI0_AUDIO_INFO_LINE_MASK (0x3f << 8)
# define HDMI0_MPEG_INFO_LINE(x) (((x) & 0x3f) << 16)
#define HDMI0_GENERIC_PACKET_CONTROL 0x741c
# define HDMI0_GENERIC0_SEND (1 << 0)
@@ -1063,7 +1067,9 @@
# define HDMI0_GENERIC1_SEND (1 << 4)
# define HDMI0_GENERIC1_CONT (1 << 5)
# define HDMI0_GENERIC0_LINE(x) (((x) & 0x3f) << 16)
+# define HDMI0_GENERIC0_LINE_MASK (0x3f << 16)
# define HDMI0_GENERIC1_LINE(x) (((x) & 0x3f) << 24)
+# define HDMI0_GENERIC1_LINE_MASK (0x3f << 24)
#define HDMI0_GC 0x7428
# define HDMI0_GC_AVMUTE (1 << 0)
#define HDMI0_AVI_INFO0 0x7454
@@ -1119,16 +1125,22 @@
#define HDMI0_GENERIC1_6 0x74a8
#define HDMI0_ACR_32_0 0x74ac
# define HDMI0_ACR_CTS_32(x) (((x) & 0xfffff) << 12)
+# define HDMI0_ACR_CTS_32_MASK (0xfffff << 12)
#define HDMI0_ACR_32_1 0x74b0
# define HDMI0_ACR_N_32(x) (((x) & 0xfffff) << 0)
+# define HDMI0_ACR_N_32_MASK (0xfffff << 0)
#define HDMI0_ACR_44_0 0x74b4
# define HDMI0_ACR_CTS_44(x) (((x) & 0xfffff) << 12)
+# define HDMI0_ACR_CTS_44_MASK (0xfffff << 12)
#define HDMI0_ACR_44_1 0x74b8
# define HDMI0_ACR_N_44(x) (((x) & 0xfffff) << 0)
+# define HDMI0_ACR_N_44_MASK (0xfffff << 0)
#define HDMI0_ACR_48_0 0x74bc
# define HDMI0_ACR_CTS_48(x) (((x) & 0xfffff) << 12)
+# define HDMI0_ACR_CTS_48_MASK (0xfffff << 12)
#define HDMI0_ACR_48_1 0x74c0
# define HDMI0_ACR_N_48(x) (((x) & 0xfffff) << 0)
+# define HDMI0_ACR_N_48_MASK (0xfffff << 0)
#define HDMI0_ACR_STATUS_0 0x74c4
#define HDMI0_ACR_STATUS_1 0x74c8
#define HDMI0_AUDIO_INFO0 0x74cc
@@ -1148,14 +1160,17 @@
# define HDMI0_60958_CS_CATEGORY_CODE(x) (((x) & 0xff) << 8)
# define HDMI0_60958_CS_SOURCE_NUMBER(x) (((x) & 0xf) << 16)
# define HDMI0_60958_CS_CHANNEL_NUMBER_L(x) (((x) & 0xf) << 20)
+# define HDMI0_60958_CS_CHANNEL_NUMBER_L_MASK (0xf << 20)
# define HDMI0_60958_CS_SAMPLING_FREQUENCY(x) (((x) & 0xf) << 24)
# define HDMI0_60958_CS_CLOCK_ACCURACY(x) (((x) & 3) << 28)
+# define HDMI0_60958_CS_CLOCK_ACCURACY_MASK (3 << 28)
#define HDMI0_60958_1 0x74d8
# define HDMI0_60958_CS_WORD_LENGTH(x) (((x) & 0xf) << 0)
# define HDMI0_60958_CS_ORIGINAL_SAMPLING_FREQUENCY(x) (((x) & 0xf) << 4)
# define HDMI0_60958_CS_VALID_L(x) (((x) & 1) << 16)
# define HDMI0_60958_CS_VALID_R(x) (((x) & 1) << 18)
# define HDMI0_60958_CS_CHANNEL_NUMBER_R(x) (((x) & 0xf) << 20)
+# define HDMI0_60958_CS_CHANNEL_NUMBER_R_MASK (0xf << 20)
#define HDMI0_ACR_PACKET_CONTROL 0x74dc
# define HDMI0_ACR_SEND (1 << 0)
# define HDMI0_ACR_CONT (1 << 1)
--
1.8.4.5
More information about the dri-devel
mailing list