diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2019-06-17 02:31:28 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-08-06 05:09:16 +0300 |
| commit | b03efda32a4b79149e7e0b58cbe73bfd56786da3 (patch) | |
| tree | 3b3fe0a2987f0ef93db35358d6c2e88813e244d3 /kms++ | |
| parent | 41ffb17e22fba40b43575dbf1a516067878ed9e5 (diff) | |
card: Add support for writeback connectors
Add a Card::has_writeback() method to report if the card support
writeback connectors. Similarly to universal planes, add a
KMSXX_DISABLE_WRITEBACK_CONNECTORS environment variable to disable
enumeration of writeback connectors to avoid confusing existing code
that expects all connectors to model an output.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'kms++')
| -rw-r--r-- | kms++/inc/kms++/card.h | 2 | ||||
| -rw-r--r-- | kms++/src/card.cpp | 11 | ||||
| -rw-r--r-- | kms++/src/connector.cpp | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/kms++/inc/kms++/card.h b/kms++/inc/kms++/card.h index e9f90e3..83009ad 100644 --- a/kms++/inc/kms++/card.h +++ b/kms++/inc/kms++/card.h @@ -53,6 +53,7 @@ public: bool has_universal_planes() const { return m_has_universal_planes; } bool has_dumb_buffers() const { return m_has_dumb; } bool has_kms() const; + bool has_writeback() const { return m_has_writeback; } std::vector<Connector*> get_connectors() const { return m_connectors; } std::vector<Encoder*> get_encoders() const { return m_encoders; } @@ -92,6 +93,7 @@ private: bool m_has_atomic; bool m_has_universal_planes; bool m_has_dumb; + bool m_has_writeback; CardVersion m_version; }; diff --git a/kms++/src/card.cpp b/kms++/src/card.cpp index 3a7ab70..1221408 100644 --- a/kms++/src/card.cpp +++ b/kms++/src/card.cpp @@ -217,6 +217,17 @@ void Card::setup() m_has_atomic = false; #endif +#ifdef DRM_CLIENT_CAP_WRITEBACK_CONNECTORS + if (getenv("KMSXX_DISABLE_WRITEBACK_CONNECTORS") == 0) { + r = drmSetClientCap(m_fd, DRM_CLIENT_CAP_WRITEBACK_CONNECTORS, 1); + m_has_writeback = r == 0; + } else { + m_has_writeback = false; + } +#else + m_has_writeback = false; +#endif + uint64_t has_dumb; r = drmGetCap(m_fd, DRM_CAP_DUMB_BUFFER, &has_dumb); m_has_dumb = r == 0 && has_dumb; diff --git a/kms++/src/connector.cpp b/kms++/src/connector.cpp index a408619..6f5f79f 100644 --- a/kms++/src/connector.cpp +++ b/kms++/src/connector.cpp @@ -36,6 +36,7 @@ static const map<int, string> connector_names = { { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, { DRM_MODE_CONNECTOR_DSI, "DSI" }, { DRM_MODE_CONNECTOR_DPI, "DPI" }, + { DRM_MODE_CONNECTOR_WRITEBACK, "writeback" }, }; static const map<int, string> connection_str = { |