From: "Paweł Anikiel" <panikiel@google.com>
To: airlied@gmail.com, akpm@linux-foundation.org,
conor+dt@kernel.org, daniel@ffwll.ch, dinguyen@kernel.org,
hverkuil-cisco@xs4all.nl, krzysztof.kozlowski+dt@linaro.org,
maarten.lankhorst@linux.intel.com, mchehab@kernel.org,
mripard@kernel.org, robh+dt@kernel.org, tzimmermann@suse.de
Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
chromeos-krk-upstreaming@google.com,
"Paweł Anikiel" <panikiel@google.com>
Subject: [PATCH v3 02/10] drm/dp_mst: Move DRM-independent structures to separate header
Date: Tue, 7 May 2024 15:54:05 +0000 [thread overview]
Message-ID: <20240507155413.266057-3-panikiel@google.com> (raw)
In-Reply-To: <20240507155413.266057-1-panikiel@google.com>
Move structures describing MST sideband messages into a separate header
so that non-DRM code can use them.
Signed-off-by: Paweł Anikiel <panikiel@google.com>
---
include/drm/display/drm_dp_mst.h | 238 ++++++++++++++++++++++++
include/drm/display/drm_dp_mst_helper.h | 232 +----------------------
2 files changed, 239 insertions(+), 231 deletions(-)
create mode 100644 include/drm/display/drm_dp_mst.h
diff --git a/include/drm/display/drm_dp_mst.h b/include/drm/display/drm_dp_mst.h
new file mode 100644
index 000000000000..4e398bfd3ee3
--- /dev/null
+++ b/include/drm/display/drm_dp_mst.h
@@ -0,0 +1,238 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef _DRM_DP_MST_H_
+#define _DRM_DP_MST_H_
+
+#include <linux/types.h>
+
+struct drm_dp_nak_reply {
+ u8 guid[16];
+ u8 reason;
+ u8 nak_data;
+};
+
+struct drm_dp_link_address_ack_reply {
+ u8 guid[16];
+ u8 nports;
+ struct drm_dp_link_addr_reply_port {
+ bool input_port;
+ u8 peer_device_type;
+ u8 port_number;
+ bool mcs;
+ bool ddps;
+ bool legacy_device_plug_status;
+ u8 dpcd_revision;
+ u8 peer_guid[16];
+ u8 num_sdp_streams;
+ u8 num_sdp_stream_sinks;
+ } ports[16];
+};
+
+struct drm_dp_remote_dpcd_read_ack_reply {
+ u8 port_number;
+ u8 num_bytes;
+ u8 bytes[255];
+};
+
+struct drm_dp_remote_dpcd_write_ack_reply {
+ u8 port_number;
+};
+
+struct drm_dp_remote_dpcd_write_nak_reply {
+ u8 port_number;
+ u8 reason;
+ u8 bytes_written_before_failure;
+};
+
+struct drm_dp_remote_i2c_read_ack_reply {
+ u8 port_number;
+ u8 num_bytes;
+ u8 bytes[255];
+};
+
+struct drm_dp_remote_i2c_read_nak_reply {
+ u8 port_number;
+ u8 nak_reason;
+ u8 i2c_nak_transaction;
+};
+
+struct drm_dp_remote_i2c_write_ack_reply {
+ u8 port_number;
+};
+
+struct drm_dp_query_stream_enc_status_ack_reply {
+ /* Bit[23:16]- Stream Id */
+ u8 stream_id;
+
+ /* Bit[15]- Signed */
+ bool reply_signed;
+
+ /* Bit[10:8]- Stream Output Sink Type */
+ bool unauthorizable_device_present;
+ bool legacy_device_present;
+ bool query_capable_device_present;
+
+ /* Bit[12:11]- Stream Output CP Type */
+ bool hdcp_1x_device_present;
+ bool hdcp_2x_device_present;
+
+ /* Bit[4]- Stream Authentication */
+ bool auth_completed;
+
+ /* Bit[3]- Stream Encryption */
+ bool encryption_enabled;
+
+ /* Bit[2]- Stream Repeater Function Present */
+ bool repeater_present;
+
+ /* Bit[1:0]- Stream State */
+ u8 state;
+};
+
+#define DRM_DP_MAX_SDP_STREAMS 16
+struct drm_dp_allocate_payload {
+ u8 port_number;
+ u8 number_sdp_streams;
+ u8 vcpi;
+ u16 pbn;
+ u8 sdp_stream_sink[DRM_DP_MAX_SDP_STREAMS];
+};
+
+struct drm_dp_allocate_payload_ack_reply {
+ u8 port_number;
+ u8 vcpi;
+ u16 allocated_pbn;
+};
+
+struct drm_dp_connection_status_notify {
+ u8 guid[16];
+ u8 port_number;
+ bool legacy_device_plug_status;
+ bool displayport_device_plug_status;
+ bool message_capability_status;
+ bool input_port;
+ u8 peer_device_type;
+};
+
+struct drm_dp_remote_dpcd_read {
+ u8 port_number;
+ u32 dpcd_address;
+ u8 num_bytes;
+};
+
+struct drm_dp_remote_dpcd_write {
+ u8 port_number;
+ u32 dpcd_address;
+ u8 num_bytes;
+ u8 *bytes;
+};
+
+#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
+struct drm_dp_remote_i2c_read {
+ u8 num_transactions;
+ u8 port_number;
+ struct drm_dp_remote_i2c_read_tx {
+ u8 i2c_dev_id;
+ u8 num_bytes;
+ u8 *bytes;
+ u8 no_stop_bit;
+ u8 i2c_transaction_delay;
+ } transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
+ u8 read_i2c_device_id;
+ u8 num_bytes_read;
+};
+
+struct drm_dp_remote_i2c_write {
+ u8 port_number;
+ u8 write_i2c_device_id;
+ u8 num_bytes;
+ u8 *bytes;
+};
+
+struct drm_dp_query_stream_enc_status {
+ u8 stream_id;
+ u8 client_id[7]; /* 56-bit nonce */
+ u8 stream_event;
+ bool valid_stream_event;
+ u8 stream_behavior;
+ u8 valid_stream_behavior;
+};
+
+/* this covers ENUM_RESOURCES, POWER_DOWN_PHY, POWER_UP_PHY */
+struct drm_dp_port_number_req {
+ u8 port_number;
+};
+
+struct drm_dp_enum_path_resources_ack_reply {
+ u8 port_number;
+ bool fec_capable;
+ u16 full_payload_bw_number;
+ u16 avail_payload_bw_number;
+};
+
+/* covers POWER_DOWN_PHY, POWER_UP_PHY */
+struct drm_dp_port_number_rep {
+ u8 port_number;
+};
+
+struct drm_dp_query_payload {
+ u8 port_number;
+ u8 vcpi;
+};
+
+struct drm_dp_resource_status_notify {
+ u8 port_number;
+ u8 guid[16];
+ u16 available_pbn;
+};
+
+struct drm_dp_query_payload_ack_reply {
+ u8 port_number;
+ u16 allocated_pbn;
+};
+
+struct drm_dp_sideband_msg_req_body {
+ u8 req_type;
+ union ack_req {
+ struct drm_dp_connection_status_notify conn_stat;
+ struct drm_dp_port_number_req port_num;
+ struct drm_dp_resource_status_notify resource_stat;
+
+ struct drm_dp_query_payload query_payload;
+ struct drm_dp_allocate_payload allocate_payload;
+
+ struct drm_dp_remote_dpcd_read dpcd_read;
+ struct drm_dp_remote_dpcd_write dpcd_write;
+
+ struct drm_dp_remote_i2c_read i2c_read;
+ struct drm_dp_remote_i2c_write i2c_write;
+
+ struct drm_dp_query_stream_enc_status enc_status;
+ } u;
+};
+
+struct drm_dp_sideband_msg_reply_body {
+ u8 reply_type;
+ u8 req_type;
+ union ack_replies {
+ struct drm_dp_nak_reply nak;
+ struct drm_dp_link_address_ack_reply link_addr;
+ struct drm_dp_port_number_rep port_number;
+
+ struct drm_dp_enum_path_resources_ack_reply path_resources;
+ struct drm_dp_allocate_payload_ack_reply allocate_payload;
+ struct drm_dp_query_payload_ack_reply query_payload;
+
+ struct drm_dp_remote_dpcd_read_ack_reply remote_dpcd_read_ack;
+ struct drm_dp_remote_dpcd_write_ack_reply remote_dpcd_write_ack;
+ struct drm_dp_remote_dpcd_write_nak_reply remote_dpcd_write_nack;
+
+ struct drm_dp_remote_i2c_read_ack_reply remote_i2c_read_ack;
+ struct drm_dp_remote_i2c_read_nak_reply remote_i2c_read_nack;
+ struct drm_dp_remote_i2c_write_ack_reply remote_i2c_write_ack;
+
+ struct drm_dp_query_stream_enc_status_ack_reply enc_status;
+ } u;
+};
+
+#endif
diff --git a/include/drm/display/drm_dp_mst_helper.h b/include/drm/display/drm_dp_mst_helper.h
index 9b19d8bd520a..61add6f6accd 100644
--- a/include/drm/display/drm_dp_mst_helper.h
+++ b/include/drm/display/drm_dp_mst_helper.h
@@ -23,6 +23,7 @@
#define _DRM_DP_MST_HELPER_H_
#include <linux/types.h>
+#include <drm/display/drm_dp_mst.h>
#include <drm/display/drm_dp_helper.h>
#include <drm/drm_atomic.h>
#include <drm/drm_fixed.h>
@@ -248,237 +249,6 @@ struct drm_dp_mst_branch {
u8 guid[16];
};
-
-struct drm_dp_nak_reply {
- u8 guid[16];
- u8 reason;
- u8 nak_data;
-};
-
-struct drm_dp_link_address_ack_reply {
- u8 guid[16];
- u8 nports;
- struct drm_dp_link_addr_reply_port {
- bool input_port;
- u8 peer_device_type;
- u8 port_number;
- bool mcs;
- bool ddps;
- bool legacy_device_plug_status;
- u8 dpcd_revision;
- u8 peer_guid[16];
- u8 num_sdp_streams;
- u8 num_sdp_stream_sinks;
- } ports[16];
-};
-
-struct drm_dp_remote_dpcd_read_ack_reply {
- u8 port_number;
- u8 num_bytes;
- u8 bytes[255];
-};
-
-struct drm_dp_remote_dpcd_write_ack_reply {
- u8 port_number;
-};
-
-struct drm_dp_remote_dpcd_write_nak_reply {
- u8 port_number;
- u8 reason;
- u8 bytes_written_before_failure;
-};
-
-struct drm_dp_remote_i2c_read_ack_reply {
- u8 port_number;
- u8 num_bytes;
- u8 bytes[255];
-};
-
-struct drm_dp_remote_i2c_read_nak_reply {
- u8 port_number;
- u8 nak_reason;
- u8 i2c_nak_transaction;
-};
-
-struct drm_dp_remote_i2c_write_ack_reply {
- u8 port_number;
-};
-
-struct drm_dp_query_stream_enc_status_ack_reply {
- /* Bit[23:16]- Stream Id */
- u8 stream_id;
-
- /* Bit[15]- Signed */
- bool reply_signed;
-
- /* Bit[10:8]- Stream Output Sink Type */
- bool unauthorizable_device_present;
- bool legacy_device_present;
- bool query_capable_device_present;
-
- /* Bit[12:11]- Stream Output CP Type */
- bool hdcp_1x_device_present;
- bool hdcp_2x_device_present;
-
- /* Bit[4]- Stream Authentication */
- bool auth_completed;
-
- /* Bit[3]- Stream Encryption */
- bool encryption_enabled;
-
- /* Bit[2]- Stream Repeater Function Present */
- bool repeater_present;
-
- /* Bit[1:0]- Stream State */
- u8 state;
-};
-
-#define DRM_DP_MAX_SDP_STREAMS 16
-struct drm_dp_allocate_payload {
- u8 port_number;
- u8 number_sdp_streams;
- u8 vcpi;
- u16 pbn;
- u8 sdp_stream_sink[DRM_DP_MAX_SDP_STREAMS];
-};
-
-struct drm_dp_allocate_payload_ack_reply {
- u8 port_number;
- u8 vcpi;
- u16 allocated_pbn;
-};
-
-struct drm_dp_connection_status_notify {
- u8 guid[16];
- u8 port_number;
- bool legacy_device_plug_status;
- bool displayport_device_plug_status;
- bool message_capability_status;
- bool input_port;
- u8 peer_device_type;
-};
-
-struct drm_dp_remote_dpcd_read {
- u8 port_number;
- u32 dpcd_address;
- u8 num_bytes;
-};
-
-struct drm_dp_remote_dpcd_write {
- u8 port_number;
- u32 dpcd_address;
- u8 num_bytes;
- u8 *bytes;
-};
-
-#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
-struct drm_dp_remote_i2c_read {
- u8 num_transactions;
- u8 port_number;
- struct drm_dp_remote_i2c_read_tx {
- u8 i2c_dev_id;
- u8 num_bytes;
- u8 *bytes;
- u8 no_stop_bit;
- u8 i2c_transaction_delay;
- } transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
- u8 read_i2c_device_id;
- u8 num_bytes_read;
-};
-
-struct drm_dp_remote_i2c_write {
- u8 port_number;
- u8 write_i2c_device_id;
- u8 num_bytes;
- u8 *bytes;
-};
-
-struct drm_dp_query_stream_enc_status {
- u8 stream_id;
- u8 client_id[7]; /* 56-bit nonce */
- u8 stream_event;
- bool valid_stream_event;
- u8 stream_behavior;
- u8 valid_stream_behavior;
-};
-
-/* this covers ENUM_RESOURCES, POWER_DOWN_PHY, POWER_UP_PHY */
-struct drm_dp_port_number_req {
- u8 port_number;
-};
-
-struct drm_dp_enum_path_resources_ack_reply {
- u8 port_number;
- bool fec_capable;
- u16 full_payload_bw_number;
- u16 avail_payload_bw_number;
-};
-
-/* covers POWER_DOWN_PHY, POWER_UP_PHY */
-struct drm_dp_port_number_rep {
- u8 port_number;
-};
-
-struct drm_dp_query_payload {
- u8 port_number;
- u8 vcpi;
-};
-
-struct drm_dp_resource_status_notify {
- u8 port_number;
- u8 guid[16];
- u16 available_pbn;
-};
-
-struct drm_dp_query_payload_ack_reply {
- u8 port_number;
- u16 allocated_pbn;
-};
-
-struct drm_dp_sideband_msg_req_body {
- u8 req_type;
- union ack_req {
- struct drm_dp_connection_status_notify conn_stat;
- struct drm_dp_port_number_req port_num;
- struct drm_dp_resource_status_notify resource_stat;
-
- struct drm_dp_query_payload query_payload;
- struct drm_dp_allocate_payload allocate_payload;
-
- struct drm_dp_remote_dpcd_read dpcd_read;
- struct drm_dp_remote_dpcd_write dpcd_write;
-
- struct drm_dp_remote_i2c_read i2c_read;
- struct drm_dp_remote_i2c_write i2c_write;
-
- struct drm_dp_query_stream_enc_status enc_status;
- } u;
-};
-
-struct drm_dp_sideband_msg_reply_body {
- u8 reply_type;
- u8 req_type;
- union ack_replies {
- struct drm_dp_nak_reply nak;
- struct drm_dp_link_address_ack_reply link_addr;
- struct drm_dp_port_number_rep port_number;
-
- struct drm_dp_enum_path_resources_ack_reply path_resources;
- struct drm_dp_allocate_payload_ack_reply allocate_payload;
- struct drm_dp_query_payload_ack_reply query_payload;
-
- struct drm_dp_remote_dpcd_read_ack_reply remote_dpcd_read_ack;
- struct drm_dp_remote_dpcd_write_ack_reply remote_dpcd_write_ack;
- struct drm_dp_remote_dpcd_write_nak_reply remote_dpcd_write_nack;
-
- struct drm_dp_remote_i2c_read_ack_reply remote_i2c_read_ack;
- struct drm_dp_remote_i2c_read_nak_reply remote_i2c_read_nack;
- struct drm_dp_remote_i2c_write_ack_reply remote_i2c_write_ack;
-
- struct drm_dp_query_stream_enc_status_ack_reply enc_status;
- } u;
-};
-
/* msg is queued to be put into a slot */
#define DRM_DP_SIDEBAND_TX_QUEUED 0
/* msg has started transmitting on a slot - still on msgq */
--
2.45.0.rc1.225.g2a3ae87e7f-goog
next prev parent reply other threads:[~2024-05-07 15:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 15:54 [PATCH v3 00/10] Add Chameleon v3 video support Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 01/10] media: Add Chameleon v3 video interface driver Paweł Anikiel
2024-05-07 15:54 ` Paweł Anikiel [this message]
2024-05-07 15:54 ` [PATCH v3 03/10] lib: Move DisplayPort CRC functions to common lib Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 04/10] drm/display: Add mask definitions for DP_PAYLOAD_ALLOCATE_* registers Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 05/10] media: dt-bindings: video-interfaces: Support DisplayPort MST Paweł Anikiel
2024-05-10 21:16 ` Rob Herring
2024-05-13 11:07 ` Paweł Anikiel
2024-05-13 14:56 ` Rob Herring (Arm)
2024-05-07 15:54 ` [PATCH v3 06/10] media: v4l2-mediabus: Add support for DisplayPort media bus Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 07/10] media: intel: Add Displayport RX IP driver Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 08/10] media: dt-bindings: Add Chameleon v3 video interface Paweł Anikiel
2024-05-10 21:25 ` Rob Herring (Arm)
2024-05-07 15:54 ` [PATCH v3 09/10] media: dt-bindings: Add Intel Displayport RX IP Paweł Anikiel
2024-05-10 21:24 ` Rob Herring
2024-05-13 10:39 ` Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 10/10] ARM: dts: chameleonv3: Add video device nodes Paweł Anikiel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240507155413.266057-3-panikiel@google.com \
--to=panikiel@google.com \
--cc=airlied@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=chromeos-krk-upstreaming@google.com \
--cc=conor+dt@kernel.org \
--cc=daniel@ffwll.ch \
--cc=devicetree@vger.kernel.org \
--cc=dinguyen@kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=hverkuil-cisco@xs4all.nl \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=mchehab@kernel.org \
--cc=mripard@kernel.org \
--cc=robh+dt@kernel.org \
--cc=tzimmermann@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).