amlogic_display

Enumerations

enum VideoInputModuleId
Name Value
kVideoInputModule0 0
kVideoInputModule1 1

There are two video input modules (VDIN) in Amlogic display engine that

receive video from external input (e.g. BT.656) or internal input (e.g.

internal VIU loopback), and write the data back to the DDR memory.

Defined at line 20 of file ../../src/graphics/display/drivers/amlogic-display/video-input-regs.h

enum viu_type
Name Value
VIU_ENCL 0
VIU_ENCI 1
VIU_ENCP 2
VIU_ENCT 3

Defined at line 21 of file ../../src/graphics/display/drivers/amlogic-display/hdmi-host.h

enum HdmiTransmitterControllerCall
Name Value
kConfigHdmitx 0
kSetupInterrupts 1
kReset 2
kSetupScdc 3
kResetFc 4
kSetFcScramblerCtrl 5

Defined at line 24 of file ../../src/graphics/display/drivers/amlogic-display/hdmi-transmitter-test.cc

enum DsiOpcode
Name Value
kDsiOpGpio 0xf0
kDsiOpReadReg 0xfc
kDsiOpDelay 0xfd
kDsiOpSleep 0xff

DSI packet DI (Data Identifier) values that convey special operations.

The values here share a namespace with valid DSI DIs, described by Section

8.5.1 "Data Identifier Byte" and Section 8.7 "Processor to Peripheral

Direction (Processor-Sourced) Packet Data Types" of the DSI spec.

Defined at line 25 of file ../../src/graphics/display/drivers/amlogic-display/panel-config.h

enum ColorSpaceConversionMode
Name Value
kRgbInternalRgbOut 0
kRgbInternalYuvOut 1

Mode of color space conversion from the internal Video Input Unit (VIU) to

the Video output module (Vout) by the Video Post Processor (VPP).

Defined at line 26 of file ../../src/graphics/display/drivers/amlogic-display/vpu.h

enum HotPlugDetectionState
Name Value
kNotDetected 0
kDetected 1

The logical state of a Hot-Plug Detect pin.

Defined at line 27 of file ../../src/graphics/display/drivers/amlogic-display/hot-plug-detection.h

enum VoutType
Name Value
kDsi 0
kHdmi 1

Defined at line 29 of file ../../src/graphics/display/drivers/amlogic-display/vout.h

enum EncoderBuiltInSelfTestMode
Name Value
kFixedColor 0
kColorBar 1
kThinLines 2
kDotGrid 3

Defined at line 39 of file ../../src/graphics/display/drivers/amlogic-display/encoder-regs.h

enum PowerOpcode
Name Value
kPowerOpGpio 0
kPowerOpSignal 2
kPowerOpAwaitGpio 4
kPowerOpExit 0xff

Defined at line 72 of file ../../src/graphics/display/drivers/amlogic-display/panel-config.h

enum BtiResourceIndex
Name Value
kDma 0

The resource ordering in the board driver's `display_btis` table.

Defined at line 105 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.h

enum SecureMonitorCallResourceIndex
Name Value
kSiliconProvider 0

The resource ordering in the board driver's `kDisplaySmcs` table.

Defined at line 119 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.h

enum VideoClock
Name Value
kVideoClock1 1
kVideoClock2 2

Video clock tree has two muxes for input signals, named video clock 1 / mux 1

(VID_CLK) and video clock 2 / mux 2 (VIID_CLK / V2).

Each video clock mux is followed by a programmable divisor (/N0 for mux 1

and /N2 for mux 2) and then multiple fixed divisors (/2, /4, /6 and /12).

Each encoder / HDMI transmitter / video digital-to-analog converter (DAC)

clock signal has its own mux, to select a clock from those provided by the

above divisors.

The output of video clock 1 is also used to generate the timing

controller signal and LCD analog clocks.

Defined at line 129 of file ../../src/graphics/display/drivers/amlogic-display/clock-regs.h

enum VideoClockMuxSource
Name Value
kVideoPll 0
kGeneralPurpose0Pll 1
kHifiPll 2
kMpll1 3
kFixed666Mhz 4
kFixed500Mhz 5
kFixed400Mhz 6
kFixed285_7Mhz 7

Selection of video clock muxes.

The mux value

<

-> clock source mapping is shown in the following diagram

of the Amlogic datasheets:

A311D Datasheet, Figure 8-13 "Video Clock Tree", Section 8.7.1.4 EE Clock

Tree, Page 114.

S905D2 Datasheet, Figure 6-12 "Video Clock Tree", Section 6.6.2.4 EE Clock

Tree, Page 98.

S905D3 Datasheet, Figure 6-13 "Video Clock Tree", Section 6.7.2.4 EE Clock

Tree, Page 99.

Defined at line 144 of file ../../src/graphics/display/drivers/amlogic-display/clock-regs.h

enum EncoderClockSource
Name Value
kVideoClock1 0
kVideoClock1Div2 1
kVideoClock1Div4 2
kVideoClock1Div6 3
kVideoClock1Div12 4
kVideoClock2 8
kVideoClock2Div2 9
kVideoClock2Div4 10
kVideoClock2Div6 11
kVideoClock2Div12 12

Selection of video clock and dividers for encoder clock muxes.

The mux value

<

-> clock source mapping is shown in the following diagram

of the Amlogic datasheets:

A311D Datasheet, Figure 8-13 "Video Clock Tree", Section 8.7.1.4 EE Clock

Tree, Page 114.

S905D2 Datasheet, Figure 6-12 "Video Clock Tree", Section 6.6.2.4 EE Clock

Tree, Page 98.

S905D3 Datasheet, Figure 6-13 "Video Clock Tree", Section 6.7.2.4 EE Clock

Tree, Page 99.

Defined at line 165 of file ../../src/graphics/display/drivers/amlogic-display/clock-regs.h

enum MemoryPowerDomainMode
Name Value
kPoweredOff 0b11
kPoweredOn 0b00

A311D datasheet Section 8.7.5 "Clock" > "Register Description", register

HHI_VPU_MEM_PD_REG0, field "Deinterlacer - di_post", page 144

S905D2 datasheet Section 6.6.6 "Clock" > "Register Description", register

HHI_VPU_MEM_PD_REG0, field "Deinterlacer - di_post" page 130

S905Y4 datasheet Section 7.2.1 "Overview", list item "MEMPD", page 52

Defined at line 189 of file ../../src/graphics/display/drivers/amlogic-display/power-regs.h

enum WritebackMuxSource
Name Value
kDisabled 0b00000
kEncoderInterlaced 0b00001
kEncoderProgressive 0b00010
kEncoderTvPanel 0b00100
kViuWriteback0 0b01000
kViuWriteback1 0b10000

Selects the clock or data source for a writeback mux.

Fields of this type must transition through `kDisabled` when being updated.

Defined at line 355 of file ../../src/graphics/display/drivers/amlogic-display/video-input-regs.h

enum FifoWordsPerBurst
Name Value
Burst1 0x0
Burst2 0x1
Burst4 0x2
BurstInvalid 0x3

Defined at line 418 of file ../../src/graphics/display/drivers/amlogic-display/vpu-regs.h

enum HdmiClockTreePatternGeneratorModeSource
Name Value
kRepeated12BitPattern 0
kRepeated14BitPattern 1
kRepeated15BitPattern 2
kFixed25BitPattern 3

Values for the `pattern_generator_mode_selection` field in `HdmiClockTreeControl`.

Defined at line 1018 of file ../../src/graphics/display/drivers/amlogic-display/clock-regs.h

Records

Functions

  • display::Mode ToDisplayMode (const display::DisplayTiming & timing)

    Defined at line 15 of file ../../src/graphics/display/drivers/amlogic-display/display-timing-mode-conversion.h

  • void LogDisplayTiming (const display::DisplayTiming & display_timing)

    Log contents of `display::DisplayTiming` to INFO level system log.

    Defined at line 16 of file ../../src/graphics/display/drivers/amlogic-display/logging.cc

  • zx::result<BoardInfo> GetBoardInfo (fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> platform_device)

    Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetBoardInfo`].

    `platform_device` must be valid.

    If the result is successful, the fields in BoardInfo are guaranteed to be

    valid.

    Defined at line 18 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.cc

  • uint32_t ToU28_4 (double value)

    Lossless conversion from a floating-point number `value` to a U28.4 fixed

    point number.

    The Um.n notation is defined in:

    https://source.android.com/docs/core/audio/data_formats#q.

    The function will error on values that doesn't fit in a U28.4 fixed-point

    number.

    TODO(https://fxbug.dev/42064981): In C++20 this can be consteval.

    Defined at line 25 of file ../../src/graphics/display/drivers/amlogic-display/fixed-point-util.h

  • template <typename T>
    uint8_t NsToLaneByte (T x, int64_t lanebytetime)

    Defined at line 26 of file ../../src/graphics/display/drivers/amlogic-display/mipi-phy.cc

  • bool operator== (const PixelGridSize2D & a, const PixelGridSize2D & b)

    Defined at line 35 of file ../../src/graphics/display/drivers/amlogic-display/pixel-grid-size2d.h

  • bool operator!= (const PixelGridSize2D & a, const PixelGridSize2D & b)

    Defined at line 39 of file ../../src/graphics/display/drivers/amlogic-display/pixel-grid-size2d.h

  • uint32_t ToU28_4 (int value)

    Lossless conversion from an integer `value` to a U28.4 fixed point number.

    The Um.n notation is defined in:

    https://source.android.com/docs/core/audio/data_formats#q.

    The function will error on values that doesn't fit in a U28.4 fixed-point

    number.

    TODO(https://fxbug.dev/42064981): In C++20 this can be consteval.

    Defined at line 41 of file ../../src/graphics/display/drivers/amlogic-display/fixed-point-util.h

  • void LogPanelConfig (const PanelConfig & panel_config)

    Log contents of `PanelConfig` to INFO level system log.

    Defined at line 47 of file ../../src/graphics/display/drivers/amlogic-display/logging.cc

  • zx::result<fdf::MmioBuffer> MapMmio (std::string_view mmio_name, fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> platform_device)

    Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetMmioByName`].

    `platform_device` must be valid.

    If the result is successful, the MmioBuffer is guaranteed to be valid.

    Defined at line 47 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.cc

  • double U28_4ToDouble (uint32_t u28_4)

    Converts a U28.4 fixed point number `u28_4` used in HdmiClockTreeControl::

    SetFrequencyDivider.

    The Um.n notation is defined in:

    https://source.android.com/docs/core/audio/data_formats#q.

    TODO(https://fxbug.dev/42064981): In C++20 this can be consteval.

    Defined at line 55 of file ../../src/graphics/display/drivers/amlogic-display/fixed-point-util.h

  • size_t RdmaRegionSize ()

    RDMA Region size (AFBC and non-AFBC)

    Defined at line 80 of file ../../src/graphics/display/drivers/amlogic-display/rdma.h

  • zx::result<zx::interrupt> GetInterrupt (std::string_view interrupt_name, fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> platform_device)

    Typesafe wrappers for [`fuchsia.hardware.platform.device/Device.GetInterruptByName`].

    `platform_device` must be valid. Note that interrupts retrieved via this function will

    be created using the ZX_INTERRUPT_MODE_EDGE_HIGH and ZX_INTERRUPT_TIMESTAMP_MONO flags.

    If the result is successful, the zx::interrupt is guaranteed to be valid.

    Defined at line 80 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.cc

  • zx::result<zx::bti> GetBti (BtiResourceIndex bti_index, fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> platform_device)

    Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetBtiById`].

    `platform_device` must be valid.

    If the result is successful, the zx::bti is guaranteed to be valid.

    Defined at line 104 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.cc

  • zx::result<zx::resource> GetSecureMonitorCall (SecureMonitorCallResourceIndex secure_monitor_call_index, fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> platform_device)

    Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetSmcById`].

    `platform_device` must be valid.

    If the result is successful, the zx::resource is guaranteed to be valid and

    represent a Secure Monitor Call.

    Defined at line 125 of file ../../src/graphics/display/drivers/amlogic-display/board-resources.cc

  • const PanelConfig * GetPanelConfig (display::PanelType panel_type)

    If the `panel_type` is supported, returns the panel configuration.

    Otherwise returns nullptr.

    Defined at line 443 of file ../../src/graphics/display/drivers/amlogic-display/panel-config.cc

  • zx_koid_t GetKoid (zx_handle_t handle)

    Defined at line 1125 of file ../../src/graphics/display/drivers/amlogic-display/display-engine.cc

Variables

const int64_t kExternalOscillatorFrequencyHz

Defined at line 77 of file ../../src/graphics/display/drivers/amlogic-display/dsi.h

const int64_t kMinVoltageControlledOscillatorFrequencyHz

Defined at line 78 of file ../../src/graphics/display/drivers/amlogic-display/dsi.h

const int64_t kMaxVoltageControlledOscillatorFrequencyHz

Defined at line 80 of file ../../src/graphics/display/drivers/amlogic-display/dsi.h

const int64_t kMaxPixelClockFrequencyHz

Defined at line 82 of file ../../src/graphics/display/drivers/amlogic-display/dsi.h