MdeModulePkg/SdMmcPciHcDxe: Hook SwitchClockFreq after SD clock start

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / SdMmcPciHcDxe / SdMmcPciHcDxe.h

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
index c29e48767ec70b69ef162737e1cf48a63aabec4e..0304960132415b53137f8c862e31a4085850c8a3 100644 (file)
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
@@ -796,6 +796,30 @@ SdCardIdentification (
   IN UINT8                              Slot\r
   );\r
 \r
+/**\r
+  SD/MMC card clock supply.\r
+\r
+  Refer to SD Host Controller Simplified spec 3.0 Section 3.2.1 for details.\r
+\r
+  @param[in] Private         A pointer to the SD_MMC_HC_PRIVATE_DATA instance.\r
+  @param[in] Slot            The slot number of the SD card to send the command to.\r
+  @param[in] BusTiming       BusTiming at which the frequency change is done.\r
+  @param[in] FirstTimeSetup  Flag to indicate whether the clock is being setup for the first time.\r
+  @param[in] ClockFreq       The max clock frequency to be set. The unit is KHz.\r
+\r
+  @retval EFI_SUCCESS       The clock is supplied successfully.\r
+  @retval Others            The clock isn't supplied successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+SdMmcHcClockSupply (\r
+  IN SD_MMC_HC_PRIVATE_DATA  *Private,\r
+  IN UINT8                   Slot,\r
+  IN SD_MMC_BUS_MODE         BusTiming,\r
+  IN BOOLEAN                 FirstTimeSetup,\r
+  IN UINT64                  ClockFreq\r
+  );\r
+\r
 /**\r
   Software reset the specified SD/MMC host controller.\r
 \r