Card: improve DRM card selection

Add new Card constructor:

Card(const std::string& driver, uint32_t idx)

which can be used to open Nth card for the given driver.

The default constructor behavior is:

- If KMSXX_DEVICE env variable is set, the card device with that path is
  opened.
- If KMSXX_DRIVER env variable is set, the card with the given driver
  name and index is opened. The format is either "drvname" or
  "drvname:idx".
- If neither env variable is given, open /dev/dri/card0

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/kms++/inc/kms++/card.h b/kms++/inc/kms++/card.h
index 77f97a3..b96e1c1 100644
--- a/kms++/inc/kms++/card.h
+++ b/kms++/inc/kms++/card.h
@@ -14,7 +14,8 @@ class Card
 	friend class Framebuffer;
 public:
 	Card();
-	Card(const std::string& device);
+	Card(const std::string& dev_path);
+	Card(const std::string& driver, uint32_t idx);
 	virtual ~Card();
 
 	Card(const Card& other) = delete;
@@ -54,6 +55,7 @@ public:
 	const std::string& version_name() const { return m_version_name; }
 
 private:
+	void setup();
 	void restore_modes();
 
 	std::map<uint32_t, DrmObject*> m_obmap;