[edk2-devel] [edk2-platforms][PATCH v3 4/5] Platform/RPi3/PlatformSmbiosDxe: Populate BIOS major/minor from PCD
Pete Batard
pete at akeo.ie
Fri Oct 11 11:07:45 UTC 2019
String parsing code is added to BIOSInfoUpdateSmbiosType0() so that
any numeric "x.y" value being passed in PcdFirmwareVersionString is
now used to populate the BIOS major and minor.
Signed-off-by: Pete Batard <pete at akeo.ie>
---
Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c | 45 ++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
index 9150dcfd8c5b..b5dcff897a59 100644
--- a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
+++ b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
@@ -41,6 +41,8 @@
#include <Library/UefiBootServicesTableLib.h>
#include <Library/PrintLib.h>
+#define SMB_IS_DIGIT(c) (((c) >= '0') && ((c) <= '9'))
+
STATIC RASPBERRY_PI_FIRMWARE_PROTOCOL *mFwProtocol;
/***********************************************************************
@@ -597,6 +599,9 @@ BIOSInfoUpdateSmbiosType0 (
{
UINT32 FirmwareRevision = 0;
EFI_STATUS Status = EFI_SUCCESS;
+ INTN i;
+ INTN State = 0;
+ INTN Value[2];
// Populate the Firmware major and minor.
Status = mFwProtocol->GetFirmwareRevision (&FirmwareRevision);
@@ -618,6 +623,46 @@ BIOSInfoUpdateSmbiosType0 (
UnicodeStrToAsciiStrS ((CHAR16*)PcdGetPtr (PcdFirmwareVersionString),
mBiosVersion, sizeof (mBiosVersion));
+ // Look for a "x.y" numeric string anywhere in mBiosVersion and
+ // try to parse it to populate the BIOS major and minor.
+ for (i = 0; (i < AsciiStrLen (mBiosVersion)) && (State < 4); i++) {
+ switch (State) {
+ case 0:
+ if (!SMB_IS_DIGIT (mBiosVersion[i]))
+ break;
+ Value[0] = Value[1] = 0;
+ State++;
+ // Fall through
+ case 1:
+ case 3:
+ if (SMB_IS_DIGIT (mBiosVersion[i])) {
+ Value[State / 2] = (Value[State / 2] * 10) + (mBiosVersion[i] - '0');
+ if (Value[State / 2] > 255) {
+ while (SMB_IS_DIGIT (mBiosVersion[i + 1]))
+ i++;
+ // Reset our state (we may have something like "Firmware X83737.1 v1.23")
+ State = 0;
+ }
+ } else {
+ State++;
+ }
+ if (State != 2)
+ break;
+ // Fall through
+ case 2:
+ if ((mBiosVersion[i] == '.') && (SMB_IS_DIGIT (mBiosVersion[i + 1]))) {
+ State++;
+ } else {
+ State = 0;
+ }
+ break;
+ }
+ }
+ if ((State == 3) || (State == 4)) {
+ mBIOSInfoType0.SystemBiosMajorRelease = (UINT8)Value[0];
+ mBIOSInfoType0.SystemBiosMinorRelease = (UINT8)Value[1];
+ }
+
LogSmbiosData ((EFI_SMBIOS_TABLE_HEADER*)&mBIOSInfoType0, mBIOSInfoType0Strings, NULL);
}
--
2.21.0.windows.1
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