efi: hii: add HII config routing/access protocols

This patch is a place holder for HII configuration routing protocol and
HII configuration access protocol.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

3 files changed, 153 insertions, 1 deletions

diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index 00128d417b9..4e90a35896c 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -24,7 +24,7 @@ obj-y += efi_device_path.o
 obj-y += efi_device_path_to_text.o
 obj-y += efi_device_path_utilities.o
 obj-y += efi_file.o
-obj-y += efi_hii.o
+obj-y += efi_hii.o efi_hii_config.o
 obj-y += efi_image_loader.o
 obj-y += efi_memory.o
 obj-y += efi_root_node.o
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 73af490377c..fc26d6adc11 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1570,6 +1570,12 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
 	if (ret != EFI_SUCCESS)
 		goto failure;
 
+	ret = efi_add_protocol(&obj->header,
+			       &efi_guid_hii_config_routing_protocol,
+			       (void *)&efi_hii_config_routing);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+
 	return ret;
 failure:
 	printf("ERROR: Failure to install protocols for loaded image\n");
diff --git a/lib/efi_loader/efi_hii_config.c b/lib/efi_loader/efi_hii_config.c
new file mode 100644
index 00000000000..f4b1f026c1b
--- /dev/null
+++ b/lib/efi_loader/efi_hii_config.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier:     GPL-2.0+
+/*
+ *  EFI Human Interface Infrastructure ... Configuration
+ *
+ *  Copyright (c) 2017 Leif Lindholm
+ *  Copyright (c) 2018 AKASHI Takahiro, Linaro Limited
+ */
+
+#include <common.h>
+#include <efi_loader.h>
+
+const efi_guid_t efi_guid_hii_config_routing_protocol
+		= EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID;
+const efi_guid_t efi_guid_hii_config_access_protocol
+		= EFI_HII_CONFIG_ACCESS_PROTOCOL_GUID;
+
+/*
+ * EFI_HII_CONFIG_ROUTING_PROTOCOL
+ */
+
+static efi_status_t EFIAPI
+extract_config(const struct efi_hii_config_routing_protocol *this,
+	       const efi_string_t request,
+	       efi_string_t *progress,
+	       efi_string_t *results)
+{
+	EFI_ENTRY("%p, \"%ls\", %p, %p", this, request, progress, results);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+export_config(const struct efi_hii_config_routing_protocol *this,
+	      efi_string_t *results)
+{
+	EFI_ENTRY("%p, %p", this, results);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+route_config(const struct efi_hii_config_routing_protocol *this,
+	     const efi_string_t configuration,
+	     efi_string_t *progress)
+{
+	EFI_ENTRY("%p, \"%ls\", %p", this, configuration, progress);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+block_to_config(const struct efi_hii_config_routing_protocol *this,
+		const efi_string_t config_request,
+		const u8 *block,
+		const efi_uintn_t block_size,
+		efi_string_t *config,
+		efi_string_t *progress)
+{
+	EFI_ENTRY("%p, \"%ls\", %p, %zu, %p, %p", this, config_request,
+		  block, block_size, config, progress);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+config_to_block(const struct efi_hii_config_routing_protocol *this,
+		const efi_string_t config_resp,
+		const u8 *block,
+		const efi_uintn_t *block_size,
+		efi_string_t *progress)
+{
+	EFI_ENTRY("%p, \"%ls\", %p, %p, %p", this, config_resp,
+		  block, block_size, progress);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+get_alt_config(const struct efi_hii_config_routing_protocol *this,
+	       const efi_string_t config_resp,
+	       const efi_guid_t *guid,
+	       const efi_string_t name,
+	       const struct efi_device_path *device_path,
+	       const efi_string_t alt_cfg_id,
+	       efi_string_t *alt_cfg_resp)
+{
+	EFI_ENTRY("%p, \"%ls\", %pUl, \"%ls\", %p, \"%ls\", %p",
+		  this, config_resp, guid, name, device_path,
+		  alt_cfg_id, alt_cfg_resp);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+/*
+ * EFI_HII_ACCESS_PROTOCOL
+ */
+
+efi_status_t EFIAPI
+extract_config_access(const struct efi_hii_config_access_protocol *this,
+		      const efi_string_t request,
+		      efi_string_t *progress,
+		      efi_string_t *results)
+{
+	EFI_ENTRY("%p, \"%ls\", %p, %p", this, request, progress, results);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+};
+
+efi_status_t EFIAPI
+route_config_access(const struct efi_hii_config_access_protocol *this,
+		    const efi_string_t configuration,
+		    efi_string_t *progress)
+{
+	EFI_ENTRY("%p, \"%ls\", %p", this, configuration, progress);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+};
+
+efi_status_t EFIAPI
+form_callback(const struct efi_hii_config_access_protocol *this,
+	      efi_browser_action_t action,
+	      efi_question_id_t question_id,
+	      u8 type,
+	      union efi_ifr_type_value *value,
+	      efi_browser_action_request_t *action_request)
+{
+	EFI_ENTRY("%p, 0x%lx, 0x%x, 0x%x, %p, %p", this, action,
+		  question_id, type, value, action_request);
+
+	return EFI_EXIT(EFI_DEVICE_ERROR);
+};
+
+const struct efi_hii_config_routing_protocol efi_hii_config_routing = {
+	.extract_config = extract_config,
+	.export_config = export_config,
+	.route_config = route_config,
+	.block_to_config = block_to_config,
+	.config_to_block = config_to_block,
+	.get_alt_config = get_alt_config
+};
+
+const struct efi_hii_config_access_protocol efi_hii_config_access = {
+	.extract_config_access = extract_config_access,
+	.route_config_access = route_config_access,
+	.form_callback = form_callback
+};