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166 lines
4.8 KiB
C
166 lines
4.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) 2018-2019, Intel Corporation. */
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#ifndef _PLDMFW_H_
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#define _PLDMFW_H_
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#include <linux/list.h>
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#include <linux/firmware.h>
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#define PLDM_DEVICE_UPDATE_CONTINUE_AFTER_FAIL BIT(0)
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#define PLDM_STRING_TYPE_UNKNOWN 0
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#define PLDM_STRING_TYPE_ASCII 1
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#define PLDM_STRING_TYPE_UTF8 2
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#define PLDM_STRING_TYPE_UTF16 3
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#define PLDM_STRING_TYPE_UTF16LE 4
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#define PLDM_STRING_TYPE_UTF16BE 5
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struct pldmfw_record {
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struct list_head entry;
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/* List of descriptor TLVs */
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struct list_head descs;
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/* Component Set version string*/
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const u8 *version_string;
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u8 version_type;
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u8 version_len;
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/* Package Data length */
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u16 package_data_len;
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/* Bitfield of Device Update Flags */
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u32 device_update_flags;
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/* Package Data block */
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const u8 *package_data;
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/* Bitmap of components applicable to this record */
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unsigned long *component_bitmap;
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u16 component_bitmap_len;
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};
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/* Standard descriptor TLV identifiers */
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#define PLDM_DESC_ID_PCI_VENDOR_ID 0x0000
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#define PLDM_DESC_ID_IANA_ENTERPRISE_ID 0x0001
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#define PLDM_DESC_ID_UUID 0x0002
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#define PLDM_DESC_ID_PNP_VENDOR_ID 0x0003
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#define PLDM_DESC_ID_ACPI_VENDOR_ID 0x0004
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#define PLDM_DESC_ID_PCI_DEVICE_ID 0x0100
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#define PLDM_DESC_ID_PCI_SUBVENDOR_ID 0x0101
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#define PLDM_DESC_ID_PCI_SUBDEV_ID 0x0102
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#define PLDM_DESC_ID_PCI_REVISION_ID 0x0103
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#define PLDM_DESC_ID_PNP_PRODUCT_ID 0x0104
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#define PLDM_DESC_ID_ACPI_PRODUCT_ID 0x0105
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#define PLDM_DESC_ID_VENDOR_DEFINED 0xFFFF
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struct pldmfw_desc_tlv {
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struct list_head entry;
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const u8 *data;
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u16 type;
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u16 size;
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};
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#define PLDM_CLASSIFICATION_UNKNOWN 0x0000
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#define PLDM_CLASSIFICATION_OTHER 0x0001
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#define PLDM_CLASSIFICATION_DRIVER 0x0002
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#define PLDM_CLASSIFICATION_CONFIG_SW 0x0003
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#define PLDM_CLASSIFICATION_APP_SW 0x0004
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#define PLDM_CLASSIFICATION_INSTRUMENTATION 0x0005
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#define PLDM_CLASSIFICATION_BIOS 0x0006
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#define PLDM_CLASSIFICATION_DIAGNOSTIC_SW 0x0007
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#define PLDM_CLASSIFICATION_OS 0x0008
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#define PLDM_CLASSIFICATION_MIDDLEWARE 0x0009
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#define PLDM_CLASSIFICATION_FIRMWARE 0x000A
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#define PLDM_CLASSIFICATION_CODE 0x000B
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#define PLDM_CLASSIFICATION_SERVICE_PACK 0x000C
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#define PLDM_CLASSIFICATION_SOFTWARE_BUNDLE 0x000D
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#define PLDM_ACTIVATION_METHOD_AUTO BIT(0)
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#define PLDM_ACTIVATION_METHOD_SELF_CONTAINED BIT(1)
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#define PLDM_ACTIVATION_METHOD_MEDIUM_SPECIFIC BIT(2)
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#define PLDM_ACTIVATION_METHOD_REBOOT BIT(3)
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#define PLDM_ACTIVATION_METHOD_DC_CYCLE BIT(4)
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#define PLDM_ACTIVATION_METHOD_AC_CYCLE BIT(5)
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#define PLDMFW_COMPONENT_OPTION_FORCE_UPDATE BIT(0)
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#define PLDMFW_COMPONENT_OPTION_USE_COMPARISON_STAMP BIT(1)
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struct pldmfw_component {
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struct list_head entry;
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/* component identifier */
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u16 classification;
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u16 identifier;
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u16 options;
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u16 activation_method;
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u32 comparison_stamp;
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u32 component_size;
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const u8 *component_data;
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/* Component version string */
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const u8 *version_string;
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u8 version_type;
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u8 version_len;
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/* component index */
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u8 index;
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};
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/* Transfer flag used for sending components to the firmware */
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#define PLDM_TRANSFER_FLAG_START BIT(0)
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#define PLDM_TRANSFER_FLAG_MIDDLE BIT(1)
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#define PLDM_TRANSFER_FLAG_END BIT(2)
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struct pldmfw_ops;
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/* Main entry point to the PLDM firmware update engine. Device drivers
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* should embed this in a private structure and use container_of to obtain
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* a pointer to their own data, used to implement the device specific
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* operations.
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*/
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struct pldmfw {
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const struct pldmfw_ops *ops;
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struct device *dev;
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};
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bool pldmfw_op_pci_match_record(struct pldmfw *context, struct pldmfw_record *record);
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/* Operations invoked by the generic PLDM firmware update engine. Used to
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* implement device specific logic.
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*
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* @match_record: check if the device matches the given record. For
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* convenience, a standard implementation is provided for PCI devices.
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*
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* @send_package_data: send the package data associated with the matching
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* record to firmware.
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*
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* @send_component_table: send the component data associated with a given
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* component to firmware. Called once for each applicable component.
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*
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* @flash_component: Flash the data for a given component to the device.
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* Called once for each applicable component, after all component tables have
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* been sent.
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*
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* @finalize_update: (optional) Finish the update. Called after all components
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* have been flashed.
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*/
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struct pldmfw_ops {
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bool (*match_record)(struct pldmfw *context, struct pldmfw_record *record);
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int (*send_package_data)(struct pldmfw *context, const u8 *data, u16 length);
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int (*send_component_table)(struct pldmfw *context, struct pldmfw_component *component,
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u8 transfer_flag);
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int (*flash_component)(struct pldmfw *context, struct pldmfw_component *component);
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int (*finalize_update)(struct pldmfw *context);
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};
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int pldmfw_flash_image(struct pldmfw *context, const struct firmware *fw);
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#endif
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