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Message-Id: <20241202-fd-dp-audio-fixup-v2-9-d9187ea96dad@linaro.org>
Date: Mon, 02 Dec 2024 12:06:39 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Paloma Arellano <quic_parellan@...cinc.com>
Cc: Douglas Anderson <dianders@...omium.org>,
Stephen Boyd <swboyd@...omium.org>, linux-arm-msm@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH v2 09/14] drm/msm/dp: use msm_dp_utils_pack_sdp_header()
for audio packets
Use msm_dp_utils_pack_sdp_header() and call msm_dp_write_link() directly
to program audio packet data. Use 0 as Packet ID, as it was not
programmed earlier.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/gpu/drm/msm/dp/dp_audio.c | 288 +++++++++-----------------------------
1 file changed, 66 insertions(+), 222 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_audio.c b/drivers/gpu/drm/msm/dp/dp_audio.c
index 5cbb11986460d1e4ed1890bdf66d0913e013083c..1aa52d5cc08684a49102e45ed6e40ac2b13497c7 100644
--- a/drivers/gpu/drm/msm/dp/dp_audio.c
+++ b/drivers/gpu/drm/msm/dp/dp_audio.c
@@ -14,6 +14,7 @@
#include "dp_catalog.h"
#include "dp_audio.h"
#include "dp_panel.h"
+#include "dp_reg.h"
#include "dp_display.h"
#include "dp_utils.h"
@@ -28,251 +29,94 @@ struct msm_dp_audio_private {
struct msm_dp_audio msm_dp_audio;
};
-static u32 msm_dp_audio_get_header(struct msm_dp_catalog *catalog,
- enum msm_dp_catalog_audio_sdp_type sdp,
- enum msm_dp_catalog_audio_header_type header)
-{
- return msm_dp_catalog_audio_get_header(catalog, sdp, header);
-}
-
-static void msm_dp_audio_set_header(struct msm_dp_catalog *catalog,
- u32 data,
- enum msm_dp_catalog_audio_sdp_type sdp,
- enum msm_dp_catalog_audio_header_type header)
-{
- msm_dp_catalog_audio_set_header(catalog, sdp, header, data);
-}
-
static void msm_dp_audio_stream_sdp(struct msm_dp_audio_private *audio)
{
struct msm_dp_catalog *catalog = audio->catalog;
- u32 value, new_value;
- u8 parity_byte;
-
- /* Config header and parity byte 1 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_1);
-
- new_value = 0x02;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_1_BIT)
- | (parity_byte << PARITY_BYTE_1_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_1);
-
- /* Config header and parity byte 2 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_2);
- new_value = value;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_2_BIT)
- | (parity_byte << PARITY_BYTE_2_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
-
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_2);
-
- /* Config header and parity byte 3 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_3);
-
- new_value = audio->channels - 1;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_3_BIT)
- | (parity_byte << PARITY_BYTE_3_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
-
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_STREAM, DP_AUDIO_SDP_HEADER_3);
+ struct dp_sdp_header sdp_hdr = {
+ .HB0 = 0x00,
+ .HB1 = 0x02,
+ .HB2 = 0x00,
+ .HB3 = audio->channels - 1,
+ };
+ u32 header[2];
+
+ msm_dp_utils_pack_sdp_header(&sdp_hdr, header);
+
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_STREAM_0, header[0]);
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_STREAM_1, header[1]);
}
static void msm_dp_audio_timestamp_sdp(struct msm_dp_audio_private *audio)
{
struct msm_dp_catalog *catalog = audio->catalog;
- u32 value, new_value;
- u8 parity_byte;
-
- /* Config header and parity byte 1 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_1);
-
- new_value = 0x1;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_1_BIT)
- | (parity_byte << PARITY_BYTE_1_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_1);
-
- /* Config header and parity byte 2 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_2);
-
- new_value = 0x17;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_2_BIT)
- | (parity_byte << PARITY_BYTE_2_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_2);
-
- /* Config header and parity byte 3 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_3);
-
- new_value = (0x0 | (0x11 << 2));
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_3_BIT)
- | (parity_byte << PARITY_BYTE_3_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_TIMESTAMP, DP_AUDIO_SDP_HEADER_3);
+ struct dp_sdp_header sdp_hdr = {
+ .HB0 = 0x00,
+ .HB1 = 0x01,
+ .HB2 = 0x17,
+ .HB3 = 0x0 | (0x11 << 2),
+ };
+ u32 header[2];
+
+ msm_dp_utils_pack_sdp_header(&sdp_hdr, header);
+
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_TIMESTAMP_0, header[0]);
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_TIMESTAMP_1, header[1]);
}
static void msm_dp_audio_infoframe_sdp(struct msm_dp_audio_private *audio)
{
struct msm_dp_catalog *catalog = audio->catalog;
- u32 value, new_value;
- u8 parity_byte;
-
- /* Config header and parity byte 1 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_1);
-
- new_value = 0x84;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_1_BIT)
- | (parity_byte << PARITY_BYTE_1_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_1);
-
- /* Config header and parity byte 2 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_2);
-
- new_value = 0x1b;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_2_BIT)
- | (parity_byte << PARITY_BYTE_2_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_2);
-
- /* Config header and parity byte 3 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_3);
-
- new_value = (0x0 | (0x11 << 2));
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_3_BIT)
- | (parity_byte << PARITY_BYTE_3_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n",
- new_value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_INFOFRAME, DP_AUDIO_SDP_HEADER_3);
+ struct dp_sdp_header sdp_hdr = {
+ .HB0 = 0x00,
+ .HB1 = 0x84,
+ .HB2 = 0x1b,
+ .HB3 = 0x0 | (0x11 << 2),
+ };
+ u32 header[2];
+
+ msm_dp_utils_pack_sdp_header(&sdp_hdr, header);
+
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_INFOFRAME_0, header[0]);
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_INFOFRAME_1, header[1]);
}
static void msm_dp_audio_copy_management_sdp(struct msm_dp_audio_private *audio)
{
struct msm_dp_catalog *catalog = audio->catalog;
- u32 value, new_value;
- u8 parity_byte;
-
- /* Config header and parity byte 1 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_1);
-
- new_value = 0x05;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_1_BIT)
- | (parity_byte << PARITY_BYTE_1_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_1);
-
- /* Config header and parity byte 2 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_2);
-
- new_value = 0x0F;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_2_BIT)
- | (parity_byte << PARITY_BYTE_2_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_2);
-
- /* Config header and parity byte 3 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_3);
-
- new_value = 0x0;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_3_BIT)
- | (parity_byte << PARITY_BYTE_3_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 3: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_COPYMANAGEMENT, DP_AUDIO_SDP_HEADER_3);
+ struct dp_sdp_header sdp_hdr = {
+ .HB0 = 0x00,
+ .HB1 = 0x05,
+ .HB2 = 0x0f,
+ .HB3 = 0x00,
+ };
+ u32 header[2];
+
+ msm_dp_utils_pack_sdp_header(&sdp_hdr, header);
+
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_COPYMANAGEMENT_0, header[0]);
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_COPYMANAGEMENT_1, header[1]);
}
static void msm_dp_audio_isrc_sdp(struct msm_dp_audio_private *audio)
{
struct msm_dp_catalog *catalog = audio->catalog;
- u32 value, new_value;
- u8 parity_byte;
-
- /* Config header and parity byte 1 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_1);
-
- new_value = 0x06;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_1_BIT)
- | (parity_byte << PARITY_BYTE_1_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 1: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_1);
-
- /* Config header and parity byte 2 */
- value = msm_dp_audio_get_header(catalog,
- DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_2);
-
- new_value = 0x0F;
- parity_byte = msm_dp_utils_calculate_parity(new_value);
- value |= ((new_value << HEADER_BYTE_2_BIT)
- | (parity_byte << PARITY_BYTE_2_BIT));
- drm_dbg_dp(audio->drm_dev,
- "Header Byte 2: value = 0x%x, parity_byte = 0x%x\n",
- value, parity_byte);
- msm_dp_audio_set_header(catalog, value,
- DP_AUDIO_SDP_ISRC, DP_AUDIO_SDP_HEADER_2);
+ struct dp_sdp_header sdp_hdr = {
+ .HB0 = 0x00,
+ .HB1 = 0x06,
+ .HB2 = 0x0f,
+ .HB3 = 0x00,
+ };
+ u32 header[2];
+ u32 reg;
+
+ /* XXX: is it necessary to preserve this field? */
+ reg = msm_dp_read_link(catalog, MMSS_DP_AUDIO_ISRC_1);
+ sdp_hdr.HB3 = FIELD_GET(HEADER_3_MASK, reg);
+
+ msm_dp_utils_pack_sdp_header(&sdp_hdr, header);
+
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_ISRC_0, header[0]);
+ msm_dp_write_link(catalog, MMSS_DP_AUDIO_ISRC_1, header[1]);
}
static void msm_dp_audio_setup_sdp(struct msm_dp_audio_private *audio)
--
2.39.5
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