audk/QuarkPlatformPkg/Library/PlatformHelperLib/PlatformLeds.c

/** @file
Platform helper LED routines.

Copyright (c) 2013-2015 Intel Corporation.

This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include <PiDxe.h>

#include "CommonHeader.h"

//
// Routines defined in other source modules of this component.
//

//
// Routines local to this source module.
//

VOID
GalileoGen2RouteOutFlashUpdateLed (
  VOID
  )
{
  //
  // For GpioNums below values 0 to 7 are for Port0 ie P0-0 - P0-7 and
  // values 8 to 15 are for Port1 ie P1-0 - P1-7.
  //

  //
  // Disable Pull-ups / pull downs on EXP0 pin for LVL_B_PU7 signal.
  //
  PlatformPcal9555GpioDisablePull (
    GALILEO_GEN2_IOEXP0_7BIT_SLAVE_ADDR,  // IO Expander 0.
    15                                   // P1-7.
    );

  //
  // Make LVL_B_OE7_N an output pin.
  //
  PlatformPcal9555GpioSetDir (
    GALILEO_GEN2_IOEXP0_7BIT_SLAVE_ADDR,  // IO Expander 0.
    14,                                   // P1-6.
    FALSE
    );

  //
  // Set level of LVL_B_OE7_N to low.
  //
  PlatformPcal9555GpioSetLevel (
    GALILEO_GEN2_IOEXP0_7BIT_SLAVE_ADDR,
    14,
    FALSE
    );

  //
  // Make MUX8_SEL an output pin.
  //
  PlatformPcal9555GpioSetDir (
    GALILEO_GEN2_IOEXP1_7BIT_SLAVE_ADDR,  // IO Expander 1.
    14,                                   // P1-6.
    FALSE
    );

  //
  // Set level of MUX8_SEL to low to route GPIO_SUS<5> to LED.
  //
  PlatformPcal9555GpioSetLevel (
    GALILEO_GEN2_IOEXP1_7BIT_SLAVE_ADDR,  // IO Expander 1.
    14,                                   // P1-6.
    FALSE
    );
}

//
// Routines exported by this source module.
//

/**
  Init platform LEDs into known state.

  @param   PlatformType     Executing platform type.
  @param   I2cBus           Pointer to I2c Host controller protocol.

  @retval  EFI_SUCCESS      Operation success.

**/
EFI_STATUS
EFIAPI
PlatformLedInit (
  IN CONST EFI_PLATFORM_TYPE              Type
  )
{
  EFI_BOOT_MODE             BootMode;

  BootMode = GetBootModeHob ();

  //
  // Init Flash update / recovery LED in OFF state.
  //
  if (BootMode == BOOT_ON_FLASH_UPDATE || BootMode == BOOT_IN_RECOVERY_MODE) {
    if (Type == GalileoGen2) {
      PlatformLegacyGpioSetLevel (R_QNC_GPIO_RGLVL_RESUME_WELL, GALILEO_GEN2_FLASH_UPDATE_LED_RESUMEWELL_GPIO, FALSE);
      GalileoGen2RouteOutFlashUpdateLed ();
    } else if (Type == Galileo) {
      PlatformLegacyGpioSetLevel (R_QNC_GPIO_RGLVL_RESUME_WELL, GALILEO_FLASH_UPDATE_LED_RESUMEWELL_GPIO, FALSE);
    } else {
      //
      // These platforms have no flash update LED.
      //
    }
  }

  return EFI_SUCCESS;
}

/**
  Turn on or off platform flash update LED.

  @param   PlatformType     Executing platform type.
  @param   TurnOn           If TRUE turn on else turn off.

  @retval  EFI_SUCCESS      Operation success.

**/
EFI_STATUS
EFIAPI
PlatformFlashUpdateLed (
  IN CONST EFI_PLATFORM_TYPE              Type,
  IN CONST BOOLEAN                        TurnOn
  )
{
  if (Type == GalileoGen2) {
    PlatformLegacyGpioSetLevel (R_QNC_GPIO_RGLVL_RESUME_WELL, GALILEO_GEN2_FLASH_UPDATE_LED_RESUMEWELL_GPIO, TurnOn);
  } else if (Type == Galileo) {
    PlatformLegacyGpioSetLevel (R_QNC_GPIO_RGLVL_RESUME_WELL, GALILEO_FLASH_UPDATE_LED_RESUMEWELL_GPIO, TurnOn);
  } else {
    //
    // These platforms have no flash update LED.
    //
  }

  return EFI_SUCCESS;
}