util/intelp2m: Add Intel Pad to Macro utility
This patch adds a new utility for converting a pad configuration from the inteltool dump to the PAD_CFG_*() macros [1] for coreboot and GPIO config data structures for FSP/sdk2-platforms/slimbootloader [2,3]. Mirror: https://github.com/maxpoliak/pch-pads-parser.git [1] src/soc/intel/common/block/include/intelblocks/gpio_defs.h [2] https://slimbootloader.github.io/tools/index.html#gpio-tool [3] 3rdparty/fsp/CometLakeFspBinPkg/CometLake1/Include/GpioSampleDef.h Change-Id: If3e3b523c4f63dc2f91e9ccd16934e3a1b6e21fa Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35643 Reviewed-by: Andrey Petrov <andrey.petrov@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Maxim Polyakov
committed by
Felix Held
Felix Held
parent
8079c5c1c2
commit
82ec61e9d7
417
util/intelp2m/platforms/common/macro.go
Normal file
417
util/intelp2m/platforms/common/macro.go
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@@ -0,0 +1,417 @@
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package common
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import "strconv"
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import "sync"
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import "../../config"
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type Fields interface {
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DecodeDW0()
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DecodeDW1()
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GenerateString()
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}
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const (
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PAD_OWN_ACPI = 0
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PAD_OWN_DRIVER = 1
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)
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const (
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TxLASTRxE = 0x0
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Tx0RxDCRx0 = 0x1
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Tx0RxDCRx1 = 0x2
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Tx1RxDCRx0 = 0x3
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Tx1RxDCRx1 = 0x4
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Tx0RxE = 0x5
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Tx1RxE = 0x6
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HIZCRx0 = 0x7
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HIZCRx1 = 0x8
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TxDRxE = 0x9
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StandbyIgnore = 0xf
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)
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const (
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IOSTERM_SAME = 0x0
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IOSTERM_DISPUPD = 0x1
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IOSTERM_ENPD = 0x2
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IOSTERM_ENPU = 0x3
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)
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const (
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TRIG_LEVEL = 0
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TRIG_EDGE_SINGLE = 1
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TRIG_OFF = 2
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TRIG_EDGE_BOTH = 3
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)
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const (
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RST_PWROK = 0
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RST_DEEP = 1
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RST_PLTRST = 2
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RST_RSMRST = 3
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)
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// PlatformSpecific - platform-specific interface
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type PlatformSpecific interface {
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RemmapRstSrc()
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Pull()
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GpiMacroAdd()
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GpoMacroAdd()
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NativeFunctionMacroAdd()
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NoConnMacroAdd()
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}
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// Macro - contains macro information and methods
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// Platform : platform-specific interface
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// padID : pad ID string
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// str : macro string entirely
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// Reg : structure of configuration register values and their masks
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type Macro struct {
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Platform PlatformSpecific
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Reg [MAX_DW_NUM]Register
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padID string
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str string
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ownership uint8
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Fields
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}
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var instanceMacro *Macro
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var once sync.Once
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// GetInstance returns singleton
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func GetInstanceMacro(p PlatformSpecific, f Fields) *Macro {
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once.Do(func() {
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instanceMacro = &Macro{ Platform : p, Fields : f }
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})
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return instanceMacro
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}
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func GetMacro() *Macro {
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return GetInstanceMacro(nil, nil)
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}
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func (macro *Macro) PadIdGet() string {
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return macro.padID
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}
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func (macro *Macro) PadIdSet(padid string) *Macro {
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macro.padID = padid
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return macro
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}
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func (macro *Macro) SetPadOwnership(own uint8) *Macro {
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macro.ownership = own
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return macro
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}
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func (macro *Macro) IsOwnershipDriver() bool {
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return macro.ownership == PAD_OWN_DRIVER
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}
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// returns <Register> data configuration structure
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// number : register number
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func (macro *Macro) Register(number uint8) *Register {
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return ¯o.Reg[number]
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}
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// add a string to macro
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func (macro *Macro) Add(str string) *Macro {
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macro.str += str
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return macro
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}
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// set a string in a macro instead of its previous contents
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func (macro *Macro) Set(str string) *Macro {
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macro.str = str
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return macro
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}
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// get macro string
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func (macro *Macro) Get() string {
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return macro.str
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}
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// set a string in a macro instead of its previous contents
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func (macro *Macro) Clear() *Macro {
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macro.Set("")
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return macro
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}
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// Adds PAD Id to the macro as a new argument
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// return: Macro
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func (macro *Macro) Id() *Macro {
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return macro.Add(macro.padID)
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}
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// Add Separator to macro if needed
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func (macro *Macro) Separator() *Macro {
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str := macro.Get()
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c := str[len(str)-1]
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if c != '(' && c != '_' {
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macro.Add(", ")
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}
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return macro
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}
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// Adds the PADRSTCFG parameter from DW0 to the macro as a new argument
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// return: Macro
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func (macro *Macro) Rstsrc() *Macro {
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dw0 := macro.Register(PAD_CFG_DW0)
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var resetsrc = map[uint8]string {
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0: "PWROK",
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1: "DEEP",
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2: "PLTRST",
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3: "RSMRST",
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}
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return macro.Separator().Add(resetsrc[dw0.GetResetConfig()])
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}
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// Adds The Pad Termination (TERM) parameter from DW1 to the macro as a new argument
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// return: Macro
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func (macro *Macro) Pull() *Macro {
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macro.Platform.Pull()
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return macro
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}
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// Adds Pad GPO value to macro string as a new argument
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// return: Macro
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func (macro *Macro) Val() *Macro {
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dw0 := macro.Register(PAD_CFG_DW0)
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return macro.Separator().Add(strconv.Itoa(int(dw0.GetGPIOTXState())))
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}
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// Adds Pad GPO value to macro string as a new argument
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// return: Macro
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func (macro *Macro) Trig() *Macro {
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dw0 := macro.Register(PAD_CFG_DW0)
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var trig = map[uint8]string{
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0x0: "LEVEL",
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0x1: "EDGE_SINGLE",
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0x2: "OFF",
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0x3: "EDGE_BOTH",
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}
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return macro.Separator().Add(trig[dw0.GetRXLevelEdgeConfiguration()])
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}
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// Adds Pad Polarity Inversion Stage (RXINV) to macro string as a new argument
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// return: Macro
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func (macro *Macro) Invert() *Macro {
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macro.Separator()
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if macro.Register(PAD_CFG_DW0).GetRxInvert() !=0 {
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return macro.Add("INVERT")
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}
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return macro.Add("NONE")
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}
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// Adds input/output buffer state
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// return: Macro
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func (macro *Macro) Bufdis() *Macro {
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var buffDisStat = map[uint8]string{
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0x0: "NO_DISABLE", // both buffers are enabled
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0x1: "TX_DISABLE", // output buffer is disabled
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0x2: "RX_DISABLE", // input buffer is disabled
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0x3: "TX_RX_DISABLE", // both buffers are disabled
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}
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state := macro.Register(PAD_CFG_DW0).GetGPIORxTxDisableStatus()
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return macro.Separator().Add(buffDisStat[state])
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}
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// Adds macro to set the host software ownership
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// return: Macro
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func (macro *Macro) Own() *Macro {
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if macro.IsOwnershipDriver() {
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return macro.Separator().Add("DRIVER")
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}
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return macro.Separator().Add("ACPI")
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}
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//Adds pad native function (PMODE) as a new argument
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//return: Macro
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func (macro *Macro) Padfn() *Macro {
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dw0 := macro.Register(PAD_CFG_DW0)
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nfnum := int(dw0.GetPadMode())
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if nfnum != 0 {
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return macro.Separator().Add("NF" + strconv.Itoa(nfnum))
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}
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// GPIO used only for PAD_FUNC(x) macro
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return macro.Add("GPIO")
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}
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// Add a line to the macro that defines IO Standby State
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// return: macro
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func (macro *Macro) IOSstate() *Macro {
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var stateMacro = map[uint8]string{
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TxLASTRxE: "TxLASTRxE",
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Tx0RxDCRx0: "Tx0RxDCRx0",
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Tx0RxDCRx1: "Tx0RxDCRx1",
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Tx1RxDCRx0: "Tx1RxDCRx0",
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Tx1RxDCRx1: "Tx1RxDCRx1",
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Tx0RxE: "Tx0RxE",
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Tx1RxE: "Tx1RxE",
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HIZCRx0: "HIZCRx0",
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HIZCRx1: "HIZCRx1",
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TxDRxE: "TxDRxE",
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StandbyIgnore: "IGNORE",
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}
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dw1 := macro.Register(PAD_CFG_DW1)
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str, valid := stateMacro[dw1.GetIOStandbyState()]
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if !valid {
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// ignore setting for incorrect value
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str = "IGNORE"
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}
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return macro.Separator().Add(str)
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}
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// Add a line to the macro that defines IO Standby Termination
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// return: macro
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func (macro *Macro) IOTerm() *Macro {
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var ioTermMacro = map[uint8]string{
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IOSTERM_SAME: "SAME",
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IOSTERM_DISPUPD: "DISPUPD",
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IOSTERM_ENPD: "ENPD",
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IOSTERM_ENPU: "ENPU",
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}
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dw1 := macro.Register(PAD_CFG_DW1)
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return macro.Separator().Add(ioTermMacro[dw1.GetIOStandbyTermination()])
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}
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// Check created macro
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func (macro *Macro) check() *Macro {
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if !macro.Register(PAD_CFG_DW0).MaskCheck() {
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return macro.GenerateFields()
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}
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return macro
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}
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// or - Set " | " if its needed
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func (macro *Macro) Or() *Macro {
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if str := macro.Get(); str[len(str) - 1] == ')' {
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macro.Add(" | ")
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}
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return macro
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}
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// AddToMacroIgnoredMask - Print info about ignored field mask
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// title - warning message
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func (macro *Macro) AddToMacroIgnoredMask() *Macro {
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if config.InfoLevelGet() < 4 || config.IsFspStyleMacro() {
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return macro
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}
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dw0 := macro.Register(PAD_CFG_DW0)
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dw1 := macro.Register(PAD_CFG_DW1)
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// Get mask of ignored bit fields.
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dw0Ignored := dw0.IgnoredFieldsGet()
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dw1Ignored := dw1.IgnoredFieldsGet()
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if dw0Ignored != 0 {
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dw0temp := dw0.ValueGet()
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dw0.ValueSet(dw0Ignored)
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macro.Add("\n\t/* DW0 : ")
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macro.Fields.DecodeDW0()
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macro.Add(" - IGNORED */")
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dw0.ValueSet(dw0temp)
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}
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if dw1Ignored != 0 {
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dw1temp := dw1.ValueGet()
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dw1.ValueSet(dw1Ignored)
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macro.Add("\n\t/* DW1 : ")
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macro.Fields.DecodeDW1()
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macro.Add(" - IGNORED */")
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dw1.ValueSet(dw1temp)
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}
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return macro
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}
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// GenerateFields - generate bitfield macros
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func (macro *Macro) GenerateFields() *Macro {
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dw0 := macro.Register(PAD_CFG_DW0)
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dw1 := macro.Register(PAD_CFG_DW1)
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// Get mask of ignored bit fields.
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dw0Ignored := dw0.IgnoredFieldsGet()
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dw1Ignored := dw1.IgnoredFieldsGet()
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if config.InfoLevelGet() <= 1 {
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macro.Clear()
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} else if config.InfoLevelGet() >= 3 {
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// Add string of reference macro as a comment
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reference := macro.Get()
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macro.Clear()
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macro.Add("/* ").Add(reference).Add(" */")
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macro.AddToMacroIgnoredMask()
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macro.Add("\n\t")
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}
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if config.AreFieldsIgnored() {
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// Consider bit fields that should be ignored when regenerating
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// advansed macros
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var tempVal uint32 = dw0.ValueGet() & ^dw0Ignored
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dw0.ValueSet(tempVal)
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tempVal = dw1.ValueGet() & ^dw1Ignored
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dw1.ValueSet(tempVal)
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}
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macro.Fields.GenerateString()
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return macro
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}
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// Generate macro for bi-directional GPIO port
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func (macro *Macro) Bidirection() {
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dw1 := macro.Register(PAD_CFG_DW1)
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ios := dw1.GetIOStandbyState() != 0 || dw1.GetIOStandbyTermination() != 0
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macro.Set("PAD_CFG_GPIO_BIDIRECT")
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if ios {
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macro.Add("_IOS")
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}
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// PAD_CFG_GPIO_BIDIRECT(pad, val, pull, rst, trig, own)
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macro.Add("(").Id().Val().Pull().Rstsrc().Trig()
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if ios {
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// PAD_CFG_GPIO_BIDIRECT_IOS(pad, val, pull, rst, trig, iosstate, iosterm, own)
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macro.IOSstate().IOTerm()
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}
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macro.Own().Add("),")
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}
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const (
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rxDisable uint8 = 0x2
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txDisable uint8 = 0x1
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)
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// Gets base string of current macro
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// return: string of macro
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func (macro *Macro) Generate() string {
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dw0 := macro.Register(PAD_CFG_DW0)
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macro.Platform.RemmapRstSrc()
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macro.Set("PAD_CFG")
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if dw0.GetPadMode() == 0 {
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// GPIO
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switch dw0.GetGPIORxTxDisableStatus() {
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case txDisable:
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macro.Platform.GpiMacroAdd() // GPI
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case rxDisable:
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macro.Platform.GpoMacroAdd() // GPO
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case rxDisable | txDisable:
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macro.Platform.NoConnMacroAdd() // NC
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default:
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macro.Bidirection()
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}
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} else {
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macro.Platform.NativeFunctionMacroAdd()
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}
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if config.IsFieldsMacroUsed() {
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// Clear control mask to generate advanced macro only
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return macro.GenerateFields().Get()
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}
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if config.IsNonCheckingFlagUsed() {
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macro.AddToMacroIgnoredMask()
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return macro.Get()
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}
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return macro.check().Get()
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}
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262
util/intelp2m/platforms/common/register.go
Normal file
262
util/intelp2m/platforms/common/register.go
Normal file
@@ -0,0 +1,262 @@
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package common
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// Bit field constants for PAD_CFG_DW0 register
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const (
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AllFields uint32 = 0xffffffff
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PadRstCfgShift uint8 = 30
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PadRstCfgMask uint32 = 0x3 << PadRstCfgShift
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RxPadStateSelectShift uint8 = 29
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RxPadStateSelectMask uint32 = 0x1 << RxPadStateSelectShift
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RxRawOverrideTo1Shift uint8 = 28
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RxRawOverrideTo1Mask uint32 = 0x1 << RxRawOverrideTo1Shift
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RxLevelEdgeConfigurationShift uint8 = 25
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RxLevelEdgeConfigurationMask uint32 = 0x3 << RxLevelEdgeConfigurationShift
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RxInvertShift uint8 = 23
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RxInvertMask uint32 = 0x1 << RxInvertShift
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RxTxEnableConfigShift uint8 = 21
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RxTxEnableConfigMask uint32 = 0x3 << RxTxEnableConfigShift
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InputRouteIOxApicShift uint8 = 20
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InputRouteIOxApicMask uint32 = 0x1 << InputRouteIOxApicShift
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InputRouteSCIShift uint8 = 19
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InputRouteSCIMask uint32 = 0x1 << InputRouteSCIShift
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InputRouteSMIShift uint8 = 18
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InputRouteSMIMask uint32 = 0x1 << InputRouteSMIShift
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InputRouteNMIShift uint8 = 17
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InputRouteNMIMask uint32 = 0x1 << InputRouteNMIShift
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PadModeShift uint8 = 10
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PadModeMask uint32 = 0x7 << PadModeShift
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RxTxBufDisableShift uint8 = 8
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RxTxBufDisableMask uint32 = 0x3 << RxTxBufDisableShift
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RxStateShift uint8 = 1
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RxStateMask uint32 = 0x1 << RxStateShift
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TxStateMask uint32 = 0x1
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)
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// config DW registers
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const (
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PAD_CFG_DW0 = 0
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PAD_CFG_DW1 = 1
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MAX_DW_NUM = 2
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)
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// Register - configuration data structure based on DW0/1 dw value
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// value : register value
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// mask : bit fileds mask
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// roFileds : read only fields mask
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type Register struct {
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value uint32
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mask uint32
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roFileds uint32
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}
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func (reg *Register) ValueSet(value uint32) *Register {
|
||||
reg.value = value
|
||||
return reg
|
||||
}
|
||||
|
||||
func (reg *Register) ValueGet() uint32 {
|
||||
return reg.value
|
||||
}
|
||||
|
||||
func (reg *Register) ReadOnlyFieldsSet(fileldMask uint32) *Register {
|
||||
reg.roFileds = fileldMask
|
||||
return reg
|
||||
}
|
||||
|
||||
func (reg *Register) ReadOnlyFieldsGet() uint32 {
|
||||
return reg.roFileds
|
||||
}
|
||||
|
||||
// Check the mask of the new macro
|
||||
// Returns true if the macro is generated correctly
|
||||
func (reg *Register) MaskCheck() bool {
|
||||
mask := ^(reg.mask | reg.roFileds)
|
||||
return reg.value&mask == 0
|
||||
}
|
||||
|
||||
// getResetConfig - get Reset Configuration from PADRSTCFG field in PAD_CFG_DW0_GPx register
|
||||
func (reg *Register) getFieldVal(mask uint32, shift uint8) uint8 {
|
||||
reg.mask |= mask
|
||||
return uint8((reg.value & mask) >> shift)
|
||||
}
|
||||
|
||||
// CntrMaskFieldsClear - clear filed in control mask
|
||||
// fieldMask - mask of the field to be cleared
|
||||
func (reg *Register) CntrMaskFieldsClear(fieldMask uint32) {
|
||||
reg.mask &= ^fieldMask;
|
||||
}
|
||||
|
||||
// IgnoredFieldsGet - return mask of unchecked (ignored) fields.
|
||||
// These bit fields were not read when the macro was
|
||||
// generated.
|
||||
// return
|
||||
// mask of ignored bit field
|
||||
func (reg *Register) IgnoredFieldsGet() uint32 {
|
||||
mask := reg.mask | reg.roFileds
|
||||
return reg.value & ^mask
|
||||
}
|
||||
|
||||
// getResetConfig - returns type reset source for corresponding pad
|
||||
// PADRSTCFG field in PAD_CFG_DW0 register
|
||||
func (reg *Register) GetResetConfig() uint8 {
|
||||
return reg.getFieldVal(PadRstCfgMask, PadRstCfgShift)
|
||||
}
|
||||
|
||||
// getRXPadStateSelect - returns RX Pad State (RXINV)
|
||||
// 0 = Raw RX pad state directly from RX buffer
|
||||
// 1 = Internal RX pad state
|
||||
func (reg *Register) GetRXPadStateSelect() uint8 {
|
||||
return reg.getFieldVal(RxPadStateSelectMask, RxPadStateSelectShift)
|
||||
}
|
||||
|
||||
// getRXRawOverrideStatus - returns 1 if the selected pad state is being
|
||||
// overridden to '1' (RXRAW1 field)
|
||||
func (reg *Register) GetRXRawOverrideStatus() uint8 {
|
||||
return reg.getFieldVal(RxRawOverrideTo1Mask, RxRawOverrideTo1Shift)
|
||||
}
|
||||
|
||||
// getRXLevelEdgeConfiguration - returns RX Level/Edge Configuration (RXEVCFG)
|
||||
// 0h = Level, 1h = Edge, 2h = Drive '0', 3h = Reserved (implement as setting 0h)
|
||||
func (reg *Register) GetRXLevelEdgeConfiguration() uint8 {
|
||||
return reg.getFieldVal(RxLevelEdgeConfigurationMask, RxLevelEdgeConfigurationShift)
|
||||
}
|
||||
|
||||
// GetRxInvert - returns RX Invert state (RXINV)
|
||||
// 1 - Inversion, 0 - No inversion
|
||||
func (reg *Register) GetRxInvert() uint8 {
|
||||
return reg.getFieldVal(RxInvertMask, RxInvertShift)
|
||||
}
|
||||
|
||||
// getRxTxEnableConfig - returns RX/TX Enable Config (RXTXENCFG)
|
||||
// 0 = Function defined in Pad Mode controls TX and RX Enables
|
||||
// 1 = Function controls TX Enable and RX Disabled with RX drive 0 internally
|
||||
// 2 = Function controls TX Enable and RX Disabled with RX drive 1 internally
|
||||
// 3 = Function controls TX Enabled and RX is always enabled
|
||||
func (reg *Register) GetRxTxEnableConfig() uint8 {
|
||||
return reg.getFieldVal(RxTxEnableConfigMask, RxTxEnableConfigShift)
|
||||
}
|
||||
|
||||
// getGPIOInputRouteIOxAPIC - returns 1 if the pad can be routed to cause
|
||||
// peripheral IRQ when configured in GPIO input mode.
|
||||
func (reg *Register) GetGPIOInputRouteIOxAPIC() uint8 {
|
||||
return reg.getFieldVal(InputRouteIOxApicMask, InputRouteIOxApicShift)
|
||||
}
|
||||
|
||||
// getGPIOInputRouteSCI - returns 1 if the pad can be routed to cause SCI when
|
||||
// configured in GPIO input mode.
|
||||
func (reg *Register) GetGPIOInputRouteSCI() uint8 {
|
||||
return reg.getFieldVal(InputRouteSCIMask, InputRouteSCIShift)
|
||||
}
|
||||
|
||||
// getGPIOInputRouteSMI - returns 1 if the pad can be routed to cause SMI when
|
||||
// configured in GPIO input mode
|
||||
func (reg *Register) GetGPIOInputRouteSMI() uint8 {
|
||||
return reg.getFieldVal(InputRouteSMIMask, InputRouteSMIShift)
|
||||
}
|
||||
|
||||
// getGPIOInputRouteNMI - returns 1 if the pad can be routed to cause NMI when
|
||||
// configured in GPIO input mode
|
||||
func (reg *Register) GetGPIOInputRouteNMI() uint8 {
|
||||
return reg.getFieldVal(InputRouteNMIMask, InputRouteNMIShift)
|
||||
}
|
||||
|
||||
// getPadMode - reutrns pad mode or one of the native functions
|
||||
// 0h = GPIO control the Pad.
|
||||
// 1h = native function 1, if applicable, controls the Pad
|
||||
// 2h = native function 2, if applicable, controls the Pad
|
||||
// 3h = native function 3, if applicable, controls the Pad
|
||||
// 4h = enable GPIO blink/PWM capability if applicable
|
||||
func (reg *Register) GetPadMode() uint8 {
|
||||
return reg.getFieldVal(PadModeMask, PadModeShift)
|
||||
}
|
||||
|
||||
// getGPIORxTxDisableStatus - returns GPIO RX/TX buffer state (GPIORXDIS | GPIOTXDIS)
|
||||
// 0 - both are enabled, 1 - TX Disable, 2 - RX Disable, 3 - both are disabled
|
||||
func (reg *Register) GetGPIORxTxDisableStatus() uint8 {
|
||||
return reg.getFieldVal(RxTxBufDisableMask, RxTxBufDisableShift)
|
||||
}
|
||||
|
||||
// getGPIORXState - returns GPIO RX State (GPIORXSTATE)
|
||||
func (reg *Register) GetGPIORXState() uint8 {
|
||||
return reg.getFieldVal(RxStateMask, RxStateShift)
|
||||
}
|
||||
|
||||
// getGPIOTXState - returns GPIO TX State (GPIOTXSTATE)
|
||||
func (reg *Register) GetGPIOTXState() uint8 {
|
||||
return reg.getFieldVal(TxStateMask, 0)
|
||||
}
|
||||
|
||||
// Bit field constants for PAD_CFG_DW1 register
|
||||
const (
|
||||
PadTolShift uint8 = 25
|
||||
PadTolMask uint32 = 0x1 << PadTolShift
|
||||
|
||||
IOStandbyStateShift uint8 = 14
|
||||
IOStandbyStateMask uint32 = 0xF << IOStandbyStateShift
|
||||
|
||||
TermShift uint8 = 10
|
||||
TermMask uint32 = 0xF << TermShift
|
||||
|
||||
IOStandbyTerminationShift uint8 = 8
|
||||
IOStandbyTerminationMask uint32 = 0x3 << IOStandbyTerminationShift
|
||||
|
||||
InterruptSelectMask uint32 = 0xFF
|
||||
)
|
||||
|
||||
// GetPadTol
|
||||
func (reg *Register) GetPadTol() uint8 {
|
||||
return reg.getFieldVal(PadTolMask, PadTolShift)
|
||||
}
|
||||
|
||||
// getIOStandbyState - return IO Standby State (IOSSTATE)
|
||||
// 0 = Tx enabled driving last value driven, Rx enabled
|
||||
// 1 = Tx enabled driving 0, Rx disabled and Rx driving 0 back to its controller internally
|
||||
// 2 = Tx enabled driving 0, Rx disabled and Rx driving 1 back to its controller internally
|
||||
// 3 = Tx enabled driving 1, Rx disabled and Rx driving 0 back to its controller internally
|
||||
// 4 = Tx enabled driving 1, Rx disabled and Rx driving 1 back to its controller internally
|
||||
// 5 = Tx enabled driving 0, Rx enabled
|
||||
// 6 = Tx enabled driving 1, Rx enabled
|
||||
// 7 = Hi-Z, Rx driving 0 back to its controller internally
|
||||
// 8 = Hi-Z, Rx driving 1 back to its controller internally
|
||||
// 9 = Tx disabled, Rx enabled
|
||||
// 15 = IO-Standby is ignored for this pin (same as functional mode)
|
||||
// Others reserved
|
||||
func (reg *Register) GetIOStandbyState() uint8 {
|
||||
return reg.getFieldVal(IOStandbyStateMask, IOStandbyStateShift)
|
||||
}
|
||||
|
||||
// getIOStandbyTermination - return IO Standby Termination (IOSTERM)
|
||||
// 0 = Same as functional mode (no change)
|
||||
// 1 = Disable Pull-up and Pull-down (no on-die termination)
|
||||
// 2 = Enable Pull-down
|
||||
// 3 = Enable Pull-up
|
||||
func (reg *Register) GetIOStandbyTermination() uint8 {
|
||||
return reg.getFieldVal(IOStandbyTerminationMask, IOStandbyTerminationShift)
|
||||
}
|
||||
|
||||
// getTermination - returns the pad termination state defines the different weak
|
||||
// pull-up and pull-down settings that are supported by the buffer
|
||||
// 0000 = none; 0010 = 5k PD; 0100 = 20k PD; 1010 = 5k PU; 1100 = 20k PU;
|
||||
// 1111 = Native controller selected
|
||||
func (reg *Register) GetTermination() uint8 {
|
||||
return reg.getFieldVal(TermMask, TermShift)
|
||||
}
|
||||
|
||||
// getInterruptSelect - returns Interrupt Line number from the GPIO controller
|
||||
func (reg *Register) GetInterruptSelect() uint8 {
|
||||
return reg.getFieldVal(InterruptSelectMask, 0)
|
||||
}
|
||||
Reference in New Issue
Block a user