mode

package

v0.0.1 Latest Latest Go to latest Published: Dec 18, 2023 License: BSD-1-Clause Imports: 5 Imported by: 0

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

code.flowtr.dev/theos/drm

Links

Open Source Insights

Documentation ¶

Overview ¶

Port of modeset.c example to Go Source: https://github.com/dvdhrm/docs/blob/master/drm-howto/modeset.c

Index ¶

Constants
Variables
func AddFB(file *os.File, width, height uint16, depth, bpp uint8, pitch, boHandle uint32) (uint32, error)
func DestroyDumb(file *os.File, handle uint32) error
func MapDumb(file *os.File, boHandle uint32) (uint64, error)
func RmFB(file *os.File, bufferid uint32) error
func SetCrtc(file *os.File, crtcid, bufferid, x, y uint32, connectors *uint32, count int, ...) error
type Connector
- func GetConnector(file *os.File, connid uint32) (*Connector, error)
type Crtc
- func GetCrtc(file *os.File, id uint32) (*Crtc, error)
type Encoder
- func GetEncoder(file *os.File, id uint32) (*Encoder, error)
type FB
- func CreateFB(file *os.File, width, height uint16, bpp uint32) (*FB, error)
type Info
type Modeset
type Resources
- func GetResources(file *os.File) (*Resources, error)
type SimpleModeset
- func NewSimpleModeset(file *os.File) (*SimpleModeset, error)
- func (mset *SimpleModeset) SetCrtc(dev *Modeset, savedCrtc *Crtc) error

Constants ¶

View Source

const (
	DisplayInfoLen   = 32
	ConnectorNameLen = 32
	DisplayModeLen   = 32
	PropNameLen      = 32

	Connected         = 1
	Disconnected      = 2
	UnknownConnection = 3
)

Variables ¶

View Source

var (
	// DRM_IOWR(0xA0, struct drm_mode_card_res)
	IOCTLModeResources = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysResources{})), drm.IOCTLBase, 0xA0)

	// DRM_IOWR(0xA1, struct drm_mode_crtc)
	IOCTLModeGetCrtc = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysCrtc{})), drm.IOCTLBase, 0xA1)

	// DRM_IOWR(0xA2, struct drm_mode_crtc)
	IOCTLModeSetCrtc = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysCrtc{})), drm.IOCTLBase, 0xA2)

	// DRM_IOWR(0xA6, struct drm_mode_get_encoder)
	IOCTLModeGetEncoder = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysGetEncoder{})), drm.IOCTLBase, 0xA6)

	// DRM_IOWR(0xA7, struct drm_mode_get_connector)
	IOCTLModeGetConnector = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysGetConnector{})), drm.IOCTLBase, 0xA7)

	// DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
	IOCTLModeAddFB = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysFBCmd{})), drm.IOCTLBase, 0xAE)

	// DRM_IOWR(0xAF, unsigned int)
	IOCTLModeRmFB = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(uint32(0))), drm.IOCTLBase, 0xAF)

	// DRM_IOWR(0xB2, struct drm_mode_create_dumb)
	IOCTLModeCreateDumb = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysCreateDumb{})), drm.IOCTLBase, 0xB2)

	// DRM_IOWR(0xB3, struct drm_mode_map_dumb)
	IOCTLModeMapDumb = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysMapDumb{})), drm.IOCTLBase, 0xB3)

	// DRM_IOWR(0xB4, struct drm_mode_destroy_dumb)
	IOCTLModeDestroyDumb = ioctl.NewCode(ioctl.Read|ioctl.Write,
		uint16(unsafe.Sizeof(sysDestroyDumb{})), drm.IOCTLBase, 0xB4)
)

Functions ¶

func AddFB ¶

func AddFB(file *os.File, width, height uint16,
	depth, bpp uint8, pitch, boHandle uint32) (uint32, error)

func DestroyDumb ¶

func DestroyDumb(file *os.File, handle uint32) error

func MapDumb ¶

func MapDumb(file *os.File, boHandle uint32) (uint64, error)

func RmFB ¶

func RmFB(file *os.File, bufferid uint32) error

func SetCrtc ¶

func SetCrtc(file *os.File, crtcid, bufferid, x, y uint32, connectors *uint32, count int, mode *Info) error

Types ¶

type Connector ¶

type Connector struct {
	ID            uint32
	EncoderID     uint32
	Type          uint32
	TypeID        uint32
	Connection    uint8
	Width, Height uint32
	Subpixel      uint8

	Modes []Info

	Props      []uint32
	PropValues []uint64

	Encoders []uint32
	// contains filtered or unexported fields
}

func GetConnector ¶

func GetConnector(file *os.File, connid uint32) (*Connector, error)

type Crtc ¶

type Crtc struct {
	ID       uint32
	BufferID uint32 // FB id to connect to 0 = disconnect

	X, Y          uint32 // Position on the framebuffer
	Width, Height uint32
	ModeValid     int
	Mode          Info

	GammaSize int // Number of gamma stops
}

func GetCrtc ¶

func GetCrtc(file *os.File, id uint32) (*Crtc, error)

type Encoder ¶

type Encoder struct {
	ID   uint32
	Type uint32

	CrtcID uint32

	PossibleCrtcs  uint32
	PossibleClones uint32
}

func GetEncoder ¶

func GetEncoder(file *os.File, id uint32) (*Encoder, error)

type FB ¶

type FB struct {
	Height, Width, BPP, Flags uint32
	Handle                    uint32
	Pitch                     uint32
	Size                      uint64
}

func CreateFB ¶

func CreateFB(file *os.File, width, height uint16, bpp uint32) (*FB, error)

type Info ¶

type Info struct {
	Clock                                         uint32
	Hdisplay, HsyncStart, HsyncEnd, Htotal, Hskew uint16
	Vdisplay, VsyncStart, VsyncEnd, Vtotal, Vscan uint16

	Vrefresh uint32

	Flags uint32
	Type  uint32
	Name  [DisplayModeLen]uint8
}

type Modeset ¶

type Modeset struct {
	Width, Height uint16

	Mode Info
	Conn uint32
	Crtc uint32
}

type Resources ¶

type Resources struct {
	Fbs        []uint32
	Crtcs      []uint32
	Connectors []uint32
	Encoders   []uint32
	// contains filtered or unexported fields
}

func GetResources ¶

func GetResources(file *os.File) (*Resources, error)

type SimpleModeset ¶

type SimpleModeset struct {
	Modesets []Modeset
	// contains filtered or unexported fields
}

func NewSimpleModeset ¶

func NewSimpleModeset(file *os.File) (*SimpleModeset, error)

func (*SimpleModeset) SetCrtc ¶

func (mset *SimpleModeset) SetCrtc(dev *Modeset, savedCrtc *Crtc) error

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL