From: "Jeremy Linton" <jeremy.linton@arm.com>
To: devel@edk2.groups.io
Cc: Jeremy Linton <jeremy.linton@arm.com>,
Leif Lindholm <leif@nuviainc.com>, Pete Batard <pete@akeo.ie>,
Andrei Warkentin <awarkentin@vmware.com>,
Ard Biesheuvel <ard.biesheuvel@arm.com>,
Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Subject: [PATCH 3/3] Platform/RaspberryPi: Add entry for user fan control
Date: Thu, 13 Aug 2020 18:00:56 -0500 [thread overview]
Message-ID: <20200813230056.40526-4-jeremy.linton@arm.com> (raw)
In-Reply-To: <20200813230056.40526-1-jeremy.linton@arm.com>
Add a menu item that allows the user to enable GPIO based
fan control via SSDT. This should only be seen/enabled on RPI4
because that is what its been tested with. As of this commit
its currently limited to only operating on a single GPIO pin (19).
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 simply.
It appears there are a couple boards (fan SHIM) which operate this
way, and probably should have custom menu items/SSDT edits as
people acquire the boards and test them.
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Pete Batard <pete@akeo.ie>
Cc: Andrei Warkentin <awarkentin@vmware.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c | 55 ++++++++++++++++++++++
.../RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf | 3 ++
.../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni | 5 ++
.../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr | 17 +++++++
Platform/RaspberryPi/Include/ConfigVars.h | 4 ++
Platform/RaspberryPi/RPi3/RPi3.dsc | 5 ++
Platform/RaspberryPi/RPi4/RPi4.dsc | 8 ++++
Platform/RaspberryPi/RaspberryPi.dec | 1 +
.../Bcm27xx/Include/IndustryStandard/Bcm2711.h | 2 +
9 files changed, 100 insertions(+)
diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
index af54136ade..f10347be64 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:
@@ -565,8 +576,49 @@ 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);
+ }
}
+EFI_STATUS
+FindInstallSsdt(UINT64 OemTableId)
+{
+ EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
+ UINTN Index;
+ EFI_ACPI_DESCRIPTION_HEADER *Ssdt;
+ UINTN SsdtSize;
+ EFI_STATUS Status;
+ UINTN TableKey;
+
+
+ Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL,
+ (VOID **)&AcpiTable);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ for (Index = 0; !EFI_ERROR(Status); Index++) {
+ Status = GetSectionFromFv (&gEfiCallerIdGuid, EFI_SECTION_RAW, Index,
+ (VOID **)&Ssdt, &SsdtSize);
+ if (Ssdt->OemTableId == OemTableId)
+ break;
+ SsdtSize = 0;
+ }
+
+ if (SsdtSize > 0) {
+ Status = AcpiTable->InstallAcpiTable (AcpiTable, Ssdt, SsdtSize,
+ &TableKey);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_WARN, "%a: failed to install SSDT table %r\n",
+ __FUNCTION__, Status));
+ }
+ }
+
+ return Status;
+}
EFI_STATUS
EFIAPI
@@ -620,6 +672,9 @@ ConfigInitialize (
PcdGet32 (PcdSystemTableMode) == SYSTEM_TABLE_MODE_BOTH) {
Status = LocateAndInstallAcpiFromFv (&mAcpiTableFile);
ASSERT_EFI_ERROR (Status);
+ if (PcdGet32 (PcdFanOnGpio)) {
+ FindInstallSsdt(SIGNATURE_64 ('R', 'P', 'I', 'T', 'H', 'F', 'A', 'N'));
+ }
}
Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_NOTIFY, RegisterDevices,
diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
index cdce35bc74..fe3a01a570 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
@@ -28,6 +28,7 @@
ConfigDxeFormSetGuid.h
ConfigDxeHii.vfr
ConfigDxeHii.uni
+ SsdtThermal.asl
XhciQuirk.c
[Packages]
@@ -46,6 +47,7 @@
AcpiLib
BaseLib
DebugLib
+ DxeServicesLib
DxeServicesTableLib
GpioLib
HiiLib
@@ -89,6 +91,7 @@
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..491d022fff 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni
@@ -48,6 +48,11 @@
#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-19 if temp exceeds 60C"
+#string STR_ADVANCED_FANONGPIO_OFF #language en-US "Disabled"
+#string STR_ADVANCED_FANONGPIO_ON #language en-US "Enabled"
+
#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..0a5e4163e8 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 +180,17 @@ 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_ON), value = GPIO_FAN_PIN, 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
diff --git a/Silicon/Broadcom/Bcm27xx/Include/IndustryStandard/Bcm2711.h b/Silicon/Broadcom/Bcm27xx/Include/IndustryStandard/Bcm2711.h
index e9c81cafa1..7d9ea5d35c 100644
--- a/Silicon/Broadcom/Bcm27xx/Include/IndustryStandard/Bcm2711.h
+++ b/Silicon/Broadcom/Bcm27xx/Include/IndustryStandard/Bcm2711.h
@@ -86,4 +86,6 @@
#define GENET_BASE_ADDRESS FixedPcdGet64 (PcdBcmGenetRegistersAddress)
#define GENET_LENGTH 0x00010000
+#define GPIO_FAN_PIN 19 // fan shim uses GPIO 18
+
#endif /* BCM2711_H__ */
--
2.13.7
next prev parent reply other threads:[~2020-08-13 23:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-13 23:00 [PATCH 0/3] Platform/RasberryPi: Thermal zone Jeremy Linton
2020-08-13 23:00 ` [PATCH 1/3] Platform/RaspberryPi4: Add a basic thermal zone Jeremy Linton
2020-08-17 11:10 ` Pete Batard
2020-08-13 23:00 ` [PATCH 2/3] Platform/RaspberryPi4: Create ACPI fan object Jeremy Linton
2020-08-17 11:10 ` [edk2-devel] " Pete Batard
2020-08-13 23:00 ` Jeremy Linton [this message]
2020-08-17 11:10 ` [PATCH 3/3] Platform/RaspberryPi: Add entry for user fan control Pete Batard
2020-08-17 18:10 ` Jeremy Linton
2020-08-17 14:31 ` [PATCH 0/3] Platform/RasberryPi: Thermal zone Ard Biesheuvel
2020-08-17 19:03 ` [edk2-devel] " Jeremy Linton
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