123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163 |
- /** @file
- GPIO initialization for the HDMI I2C Debug Port
- Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include <Uefi.h>
- #include <Library/PcdLib.h>
- #include <Library/PciLib.h>
- #include <Library/GpioLib.h>
- #include <Library/HdmiDebugPchDetectionLib.h>
- #include <GpioPinsSklLp.h>
- #include <GpioPinsSklH.h>
- //GPIO Table Terminator
- #define END_OF_GPIO_TABLE 0xFFFFFFFF
- typedef enum {
- EnumDdcUnknown = 0,
- EnumDdcA,
- EnumDdcB,
- EnumDdcC,
- EnumDdcD,
- EnumDdcE,
- EnumDdcF,
- EnumI2cChannelMax
- } IGFX_I2C_CHANNEL;
- /*** SKL-LP ***/
- // HDMI-B DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklLpDdpB[] =
- {
- {GPIO_SKL_LP_GPP_E18, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPB_CTRLCLK
- {GPIO_SKL_LP_GPP_E19, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPB_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklLpDdpBSize = sizeof (mDebugGpioTableSklLpDdpB) / sizeof (GPIO_INIT_CONFIG) - 1;
- // HDMI-C DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklLpDdpC[] =
- {
- {GPIO_SKL_LP_GPP_E20, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPC_CTRLCLK
- {GPIO_SKL_LP_GPP_E21, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPC_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklLpDdpCSize = sizeof (mDebugGpioTableSklLpDdpC) / sizeof (GPIO_INIT_CONFIG) - 1;
- // HDMI-D DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklLpDdpD[] =
- {
- {GPIO_SKL_LP_GPP_E22, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPD_CTRLCLK
- {GPIO_SKL_LP_GPP_E23, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPD_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklLpDdpDSize = sizeof (mDebugGpioTableSklLpDdpD) / sizeof (GPIO_INIT_CONFIG) - 1;
- /*** SKL-H ***/
- // HDMI-B DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklHDdpB[] =
- {
- {GPIO_SKL_H_GPP_I5, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPB_CTRLCLK
- {GPIO_SKL_H_GPP_I6, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPB_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklHDdpBSize = sizeof (mDebugGpioTableSklHDdpB) / sizeof (GPIO_INIT_CONFIG) - 1;
- // HDMI-C DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklHDdpC[] =
- {
- {GPIO_SKL_H_GPP_I7, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPC_CTRLCLK
- {GPIO_SKL_H_GPP_I8, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPC_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklHDdpCSize = sizeof (mDebugGpioTableSklHDdpC) / sizeof (GPIO_INIT_CONFIG) - 1;
- // HDMI-D DDC GPIO Pins
- GPIO_INIT_CONFIG mDebugGpioTableSklHDdpD[] =
- {
- {GPIO_SKL_H_GPP_I9, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPD_CTRLCLK
- {GPIO_SKL_H_GPP_I10, {GpioPadModeNative1, GpioHostOwnDefault, GpioDirNone, GpioOutDefault, GpioIntDis, GpioHostDeepReset, GpioTermNone}}, //DDPD_CTRLDATA
- {END_OF_GPIO_TABLE, {GpioPadModeGpio, GpioHostOwnGpio, GpioDirNone, GpioOutDefault, GpioIntDis, GpioDswReset, GpioTermNone}},//Marking End of Table
- };
- UINT16 mDebugGpioTableSklHDdpDSize = sizeof (mDebugGpioTableSklHDdpD) / sizeof (GPIO_INIT_CONFIG) - 1;
- /**
- Configures GPIO
- @param[in] GpioTable Point to Platform Gpio table
- @param[in] GpioTableCount Number of Gpio table entries
- **/
- VOID
- HdmiDebugConfigureGpio (
- IN GPIO_INIT_CONFIG *GpioDefinition,
- IN UINT16 GpioTableCount
- )
- {
- EFI_STATUS Status;
- Status = GpioConfigurePads (GpioTableCount, GpioDefinition);
- }
- /**
- Configures GPIOs to enable usage of the HDMI DDC I2C Bus
- @retval EFI_SUCCESS The function completed successfully
- @retval EFI_UNSUPPORTED The platform is using a PCH that is not supported yet.
- **/
- EFI_STATUS
- HdmiDebugGpioInit (
- VOID
- )
- {
- IGFX_I2C_CHANNEL Channel;
- PCH_TYPE PchType;
- PchType = GetPchTypeInternal ();
- Channel = (IGFX_I2C_CHANNEL) PcdGet32 (PcdI2cHdmiDebugPortDdcI2cChannel);
- switch (PchType) {
- case PchTypeSptLp:
- switch (Channel) {
- case EnumDdcB:
- HdmiDebugConfigureGpio (mDebugGpioTableSklLpDdpB, mDebugGpioTableSklLpDdpBSize);
- return EFI_SUCCESS;
- case EnumDdcC:
- HdmiDebugConfigureGpio (mDebugGpioTableSklLpDdpC, mDebugGpioTableSklLpDdpCSize);
- return EFI_SUCCESS;
- case EnumDdcD:
- HdmiDebugConfigureGpio (mDebugGpioTableSklLpDdpD, mDebugGpioTableSklLpDdpDSize);
- return EFI_SUCCESS;
- default:
- return EFI_UNSUPPORTED;
- }
- break;
- case PchTypeSptH:
- case PchTypeKbpH:
- switch (Channel) {
- case EnumDdcB:
- HdmiDebugConfigureGpio (mDebugGpioTableSklHDdpB, mDebugGpioTableSklHDdpBSize);
- return EFI_SUCCESS;
- case EnumDdcC:
- HdmiDebugConfigureGpio (mDebugGpioTableSklHDdpC, mDebugGpioTableSklHDdpCSize);
- return EFI_SUCCESS;
- case EnumDdcD:
- HdmiDebugConfigureGpio (mDebugGpioTableSklHDdpD, mDebugGpioTableSklHDdpDSize);
- return EFI_SUCCESS;
- default:
- return EFI_UNSUPPORTED;
- }
- break;
- default:
- return EFI_UNSUPPORTED;
- }
- }
|