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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2021-03-19 02:49:54 +0100
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2021-03-25 20:09:17 +0100
commitf027222ad8c7488bab6f4e5b6ab77104081842c6 (patch)
tree079b301dd5fc98b835b73f0d52c4ae708215d630 /include/efi_api.h
parent134d3387e1b794bbe1ba1747232f15d9376632c9 (diff)
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efi_loader: Uart device path
When uploading an EFI binary via the UART we need to assign a device path. * Provide devicepath node to text conversion for Uart() node. * Provide function to create Uart() device path. * Add UART support to efi_dp_from_name(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include/efi_api.h')
-rw-r--r--include/efi_api.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/efi_api.h b/include/efi_api.h
index 48e48a6263..4ccde1d24d 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -523,6 +523,7 @@ struct efi_device_path_acpi_path {
# define DEVICE_PATH_SUB_TYPE_MSG_SCSI 0x02
# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
+# define DEVICE_PATH_SUB_TYPE_MSG_UART 0x0e
# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
# define DEVICE_PATH_SUB_TYPE_MSG_SATA 0x12
# define DEVICE_PATH_SUB_TYPE_MSG_NVME 0x17
@@ -542,6 +543,15 @@ struct efi_device_path_scsi {
u16 logical_unit_number;
} __packed;
+struct efi_device_path_uart {
+ struct efi_device_path dp;
+ u32 reserved;
+ u64 baud_rate;
+ u8 data_bits;
+ u8 parity;
+ u8 stop_bits;
+} __packed;
+
struct efi_device_path_usb {
struct efi_device_path dp;
u8 parent_port_number;