[edk2-devel] [PATCH v3 3/5] Platform/RaspberryPi: Add entry for user fan control
Pete Batard
pete at akeo.ie
Mon Aug 31 13:17:22 UTC 2020
On 2020.08.28 23:02, Jeremy Linton wrote:
> Add a menu item that allows the user to enable GPIO based
> fan control via SSDT and the previous NameObj replacement
> commit. This should only be seen/enabled on RPI4
> because that is what its been tested with.
>
> Given GPIO pin current limitations its likely that a bit of
> additional circuitry is required to drive a fan, and the GPIO
> high/low signal can only be used as a enable/disable signal. A
> search for "rpi npn gpio fan" or similar should turn up some
> hits for how to do this. Alternatively there are some commercial
> boards (FAN SHIM) which operate via simple GPIO control.
>
> Cc: Leif Lindholm <leif at nuviainc.com>
> Cc: Pete Batard <pete at akeo.ie>
> Cc: Andrei Warkentin <awarkentin at vmware.com>
> Cc: Ard Biesheuvel <ard.biesheuvel at arm.com>
> Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud at arm.com>
> Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
> Reviewed-by: Pete Batard <@pbatard>
> ---
> Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c | 26 ++++++++++++++++++++++
> .../RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf | 2 ++
> .../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni | 6 +++++
> .../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr | 18 +++++++++++++++
> Platform/RaspberryPi/Include/ConfigVars.h | 4 ++++
> Platform/RaspberryPi/RPi3/RPi3.dsc | 5 +++++
> Platform/RaspberryPi/RPi4/RPi4.dsc | 8 +++++++
> Platform/RaspberryPi/RaspberryPi.dec | 1 +
> 8 files changed, 70 insertions(+)
>
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> index 9e5d9734ca..d58cbbdfe7 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> @@ -15,6 +15,7 @@
> #include <Library/AcpiLib.h>
>
> #include <Library/DebugLib.h>
>
> #include <Library/DevicePathLib.h>
>
> +#include <Library/DxeServicesLib.h>
>
> #include <Library/DxeServicesTableLib.h>
>
> #include <Library/GpioLib.h>
>
> #include <Library/HiiLib.h>
>
> @@ -22,6 +23,7 @@
> #include <Library/NetLib.h>
>
> #include <Library/UefiBootServicesTableLib.h>
>
> #include <Library/UefiRuntimeServicesTableLib.h>
>
> +#include <Protocol/AcpiTable.h>
>
> #include <Protocol/BcmGenetPlatformDevice.h>
>
> #include <Protocol/RpiFirmware.h>
>
> #include <ConfigVars.h>
>
> @@ -246,6 +248,14 @@ SetupVariables (
> ASSERT_EFI_ERROR (Status);
>
> }
>
>
>
> + Size = sizeof (UINT32);
>
> + Status = gRT->GetVariable (L"FanOnGpio",
>
> + &gConfigDxeFormSetGuid,
>
> + NULL, &Size, &Var32);
>
> + if (EFI_ERROR (Status)) {
>
> + PcdSet32 (PcdFanOnGpio, PcdGet32 (PcdFanOnGpio));
>
> + }
>
> +
>
> Size = sizeof(AssetTagVar);
>
>
>
> Status = gRT->GetVariable(L"AssetTag",
>
> @@ -368,6 +378,7 @@ ApplyVariables (
> UINT32 CpuClock = PcdGet32 (PcdCpuClock);
>
> UINT32 CustomCpuClock = PcdGet32 (PcdCustomCpuClock);
>
> UINT32 Rate = 0;
>
> + UINT32 FanOnGpio = PcdGet32 (PcdFanOnGpio);
>
>
>
> switch (CpuClock) {
>
> case CHIPSET_CPU_CLOCK_LOW:
>
> @@ -565,6 +576,11 @@ ApplyVariables (
> GpioPinFuncSet (23, GPIO_FSEL_INPUT);
>
> GpioPinFuncSet (24, GPIO_FSEL_INPUT);
>
> }
>
> +
>
> + if (FanOnGpio) {
>
> + DEBUG ((DEBUG_INFO, "Fan enabled on GPIO %d\n", FanOnGpio));
>
> + GpioPinFuncSet (FanOnGpio, GPIO_FSEL_OUTPUT);
>
> + }
>
> }
>
>
>
>
>
> @@ -679,8 +695,18 @@ VerifyUpdateTable(
> }
>
>
>
>
>
> +STATIC AML_NAME_OP_REPLACE SsdtNameOpReplace[] = {
>
> + {"GIOP", PcdToken(PcdFanOnGpio)},
>
> + {}
>
> +};
>
> +
>
> STATIC NAMESPACE_TABLES SdtTables[] = {
>
> {
>
> + SIGNATURE_64 ('R', 'P', 'I', 'T', 'H', 'F', 'A', 'N'),
>
> + PcdToken(PcdFanOnGpio),
>
> + SsdtNameOpReplace
>
> + },
>
> + {
>
> SIGNATURE_64 ('R', 'P', 'I', 0, 0, 0, 0, 0),
>
> 0,
>
> NULL
>
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> index cdce35bc74..321e402e65 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> @@ -46,6 +46,7 @@
> AcpiLib
>
> BaseLib
>
> DebugLib
>
> + DxeServicesLib
>
> DxeServicesTableLib
>
> GpioLib
>
> HiiLib
>
> @@ -89,6 +90,7 @@
> gRaspberryPiTokenSpaceGuid.PcdSystemTableMode
>
> gRaspberryPiTokenSpaceGuid.PcdRamMoreThan3GB
>
> gRaspberryPiTokenSpaceGuid.PcdRamLimitTo3GB
>
> + gRaspberryPiTokenSpaceGuid.PcdFanOnGpio
>
>
>
> [Depex]
>
> gPcdProtocolGuid AND gRaspberryPiFirmwareProtocolGuid
>
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni
> index 03763710a1..e2d1bb4b39 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni
> @@ -48,6 +48,12 @@
> #string STR_ADVANCED_SYSTAB_BOTH #language en-US "ACPI + Devicetree"
>
> #string STR_ADVANCED_SYSTAB_DT #language en-US "Devicetree"
>
>
>
> +#string STR_ADVANCED_FANONGPIO_PROMPT #language en-US "ACPI fan control"
>
> +#string STR_ADVANCED_FANONGPIO_HELP #language en-US "Cycle a fan via GPIO if temp exceeds 60C"
>
> +#string STR_ADVANCED_FANONGPIO_OFF #language en-US "Disabled"
>
> +#string STR_ADVANCED_FANONGPIO_18 #language en-US "Fan Shim/GPIO-18"
>
> +#string STR_ADVANCED_FANONGPIO_19 #language en-US "GPIO-19"
>
> +
>
> #string STR_ADVANCED_ASSET_TAG_PROMPT #language en-US "Asset Tag"
>
> #string STR_ADVANCED_ASSET_TAG_HELP #language en-US "Set the system Asset Tag"
>
>
>
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr
> index d5615d7af0..94332caab3 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr
> @@ -10,6 +10,7 @@
> #include <Guid/HiiPlatformSetupFormset.h>
>
> #include "ConfigDxeFormSetGuid.h"
>
> #include <ConfigVars.h>
>
> +#include <IndustryStandard/Bcm2711.h>
>
>
>
> //
>
> // EFI Variable attributes
>
> @@ -45,6 +46,11 @@ formset
> name = RamLimitTo3GB,
>
> guid = CONFIGDXE_FORM_SET_GUID;
>
>
>
> + efivarstore ADVANCED_FAN_ON_GPIO_VARSTORE_DATA,
>
> + attribute = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
>
> + name = FanOnGpio,
>
> + guid = CONFIGDXE_FORM_SET_GUID;
>
> +
>
> efivarstore SYSTEM_TABLE_MODE_VARSTORE_DATA,
>
> attribute = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
>
> name = SystemTableMode,
>
> @@ -174,6 +180,18 @@ formset
> option text = STRING_TOKEN(STR_ADVANCED_SYSTAB_DT), value = SYSTEM_TABLE_MODE_DT, flags = DEFAULT;
>
> endoneof;
>
>
>
> +#if (RPI_MODEL == 4)
>
> + grayoutif NOT ideqval SystemTableMode.Mode == SYSTEM_TABLE_MODE_ACPI;
>
> + oneof varid = FanOnGpio.Enabled,
>
> + prompt = STRING_TOKEN(STR_ADVANCED_FANONGPIO_PROMPT),
>
> + help = STRING_TOKEN(STR_ADVANCED_FANONGPIO_HELP),
>
> + flags = NUMERIC_SIZE_4 | INTERACTIVE | RESET_REQUIRED,
>
> + option text = STRING_TOKEN(STR_ADVANCED_FANONGPIO_OFF), value = 0, flags = DEFAULT;
>
> + option text = STRING_TOKEN(STR_ADVANCED_FANONGPIO_18), value = 18, flags = 0;
>
> + option text = STRING_TOKEN(STR_ADVANCED_FANONGPIO_19), value = 19, flags = 0;
>
> + endoneof;
>
> + endif;
>
> +#endif
>
> string varid = AssetTag.AssetTag,
>
> prompt = STRING_TOKEN(STR_ADVANCED_ASSET_TAG_PROMPT),
>
> help = STRING_TOKEN(STR_ADVANCED_ASSET_TAG_HELP),
>
> diff --git a/Platform/RaspberryPi/Include/ConfigVars.h b/Platform/RaspberryPi/Include/ConfigVars.h
> index b1689b004d..1a40469bfa 100644
> --- a/Platform/RaspberryPi/Include/ConfigVars.h
> +++ b/Platform/RaspberryPi/Include/ConfigVars.h
> @@ -69,6 +69,10 @@ typedef struct {
> } ADVANCED_RAM_LIMIT_TO_3GB_VARSTORE_DATA;
>
>
>
> typedef struct {
>
> + UINT32 Enabled;
>
> +} ADVANCED_FAN_ON_GPIO_VARSTORE_DATA;
>
> +
>
> +typedef struct {
>
> #define SYSTEM_TABLE_MODE_ACPI 0
>
> #define SYSTEM_TABLE_MODE_BOTH 1
>
> #define SYSTEM_TABLE_MODE_DT 2
>
> diff --git a/Platform/RaspberryPi/RPi3/RPi3.dsc b/Platform/RaspberryPi/RPi3/RPi3.dsc
> index 0998d8366c..cef8932ca2 100644
> --- a/Platform/RaspberryPi/RPi3/RPi3.dsc
> +++ b/Platform/RaspberryPi/RPi3/RPi3.dsc
> @@ -499,6 +499,11 @@
> gRaspberryPiTokenSpaceGuid.PcdSystemTableMode|L"SystemTableMode"|gConfigDxeFormSetGuid|0x0|1
>
>
>
> #
>
> + # Enable a fan in the ACPI thermal zone on GPIO pin #
>
> + #
>
> + gRaspberryPiTokenSpaceGuid.PcdFanOnGpio|L"FanOnGpio"|gConfigDxeFormSetGuid|0x0|0
>
> +
>
> + #
>
> # Common UEFI ones.
>
> #
>
>
>
> diff --git a/Platform/RaspberryPi/RPi4/RPi4.dsc b/Platform/RaspberryPi/RPi4/RPi4.dsc
> index baa7e63483..9d0eaf10a1 100644
> --- a/Platform/RaspberryPi/RPi4/RPi4.dsc
> +++ b/Platform/RaspberryPi/RPi4/RPi4.dsc
> @@ -510,6 +510,14 @@
> gRaspberryPiTokenSpaceGuid.PcdSystemTableMode|L"SystemTableMode"|gConfigDxeFormSetGuid|0x0|0
>
>
>
> #
>
> + # Enable a fan in the ACPI thermal zone on GPIO pin #
>
> + #
>
> + # 0 - DISABLED
>
> + # 19 - Enabled on pin 19
>
> + #
>
> + gRaspberryPiTokenSpaceGuid.PcdFanOnGpio|L"FanOnGpio"|gConfigDxeFormSetGuid|0x0|0
>
> +
>
> + #
>
> # Common UEFI ones.
>
> #
>
>
>
> diff --git a/Platform/RaspberryPi/RaspberryPi.dec b/Platform/RaspberryPi/RaspberryPi.dec
> index c71177a2f7..a73650f2c3 100644
> --- a/Platform/RaspberryPi/RaspberryPi.dec
> +++ b/Platform/RaspberryPi/RaspberryPi.dec
> @@ -66,3 +66,4 @@
> gRaspberryPiTokenSpaceGuid.PcdSystemTableMode|1|UINT32|0x0000001B
>
> gRaspberryPiTokenSpaceGuid.PcdRamMoreThan3GB|0|UINT32|0x00000019
>
> gRaspberryPiTokenSpaceGuid.PcdRamLimitTo3GB|0|UINT32|0x0000001A
>
> + gRaspberryPiTokenSpaceGuid.PcdFanOnGpio|0|UINT32|0x0000001C
>
Reviewed-by: Pete Batard <pete at akeo.ie>
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