[U-Boot] [PATCH v2 4/6] efi: hii: add keyboard layout package support
AKASHI Takahiro
takahiro.akashi at linaro.org
Fri Nov 16 01:18:35 UTC 2018
Allow for handling keyboard layout package in HII database protocol.
A package can be added or deleted in HII database protocol, but
we don't set 'current' keyboard layout as there is no driver that
requests a keyboard layout.
Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
include/efi_api.h | 11 +++
lib/efi_loader/efi_hii.c | 141 +++++++++++++++++++++++++++++++++++++--
2 files changed, 147 insertions(+), 5 deletions(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index f3a0b4396b5a..76d7377bd2bb 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -844,6 +844,17 @@ struct efi_hii_guid_package {
char data[];
} __packed;
+/*
+ * Keyboard layout package
+ */
+
+struct efi_hii_keyboard_layout_package {
+ struct efi_hii_package_header header;
+ u8 layout_count;
+ u8 __pad;
+ struct efi_hii_keyboard_layout layout[];
+} __packed;
+
typedef void *efi_hii_handle_t;
struct efi_hii_database_protocol {
diff --git a/lib/efi_loader/efi_hii.c b/lib/efi_loader/efi_hii.c
index 036aa8eac956..fefe3a861387 100644
--- a/lib/efi_loader/efi_hii.c
+++ b/lib/efi_loader/efi_hii.c
@@ -17,6 +17,7 @@ const efi_guid_t efi_guid_hii_string_protocol = EFI_HII_STRING_PROTOCOL_GUID;
const u32 hii_package_signature = 0x68696770; /* "higp" */
static LIST_HEAD(efi_package_lists);
+static LIST_HEAD(efi_kb_layout_list);
struct efi_hii_packagelist {
struct list_head link;
@@ -26,6 +27,7 @@ struct efi_hii_packagelist {
u32 max_string_id;
struct list_head string_tables; /* list of efi_string_table */
struct list_head guid_list;
+ struct list_head kb_layout_packages;
/* we could also track fonts, images, etc */
};
@@ -53,6 +55,17 @@ struct efi_guid_data {
struct efi_hii_guid_package package;
};
+struct efi_kb_layout_data {
+ struct list_head link; /* in package */
+ struct list_head link_sys; /* in global list */
+ struct efi_hii_keyboard_layout kb_layout;
+};
+
+struct efi_kb_layout_package_data {
+ struct list_head link; /* in package_list */
+ struct list_head kb_layout_list;
+};
+
static void free_strings_table(struct efi_string_table *stbl)
{
int i;
@@ -213,6 +226,74 @@ add_guid_package(struct efi_hii_packagelist *hii,
return EFI_SUCCESS;
}
+static void free_keyboard_layouts(struct efi_kb_layout_package_data *package)
+{
+ struct efi_kb_layout_data *data;
+
+ while (!list_empty(&package->kb_layout_list)) {
+ data = list_first_entry(&package->kb_layout_list,
+ struct efi_kb_layout_data,
+ link);
+ list_del(&data->link);
+ list_del(&data->link_sys);
+ free(data);
+ }
+}
+
+static void remove_keyboard_layout_package(struct efi_hii_packagelist *hii)
+{
+ struct efi_kb_layout_package_data *package;
+
+ while (!list_empty(&hii->kb_layout_packages)) {
+ package = list_first_entry(&hii->kb_layout_packages,
+ struct efi_kb_layout_package_data,
+ link);
+ free_keyboard_layouts(package);
+ list_del(&package->link);
+ free(package);
+ }
+}
+
+static efi_status_t
+add_keyboard_layout_package(struct efi_hii_packagelist *hii,
+ struct efi_hii_keyboard_layout_package
+ *kb_layout_package)
+{
+ struct efi_kb_layout_package_data *package;
+ struct efi_hii_keyboard_layout *layout;
+ struct efi_kb_layout_data *data;
+ int i;
+
+ package = malloc(sizeof(*package));
+ if (!package)
+ return EFI_OUT_OF_RESOURCES;
+ INIT_LIST_HEAD(&package->link);
+ INIT_LIST_HEAD(&package->kb_layout_list);
+
+ layout = &kb_layout_package->layout[0];
+ for (i = 0; i < kb_layout_package->layout_count; i++) {
+ data = malloc(sizeof(*data) + layout->layout_length);
+ if (!data)
+ goto out;
+
+ memcpy(&data->kb_layout, layout, layout->layout_length);
+ list_add_tail(&data->link, &package->kb_layout_list);
+ list_add_tail(&data->link_sys, &efi_kb_layout_list);
+
+ layout += layout->layout_length;
+ }
+
+ list_add_tail(&package->link, &hii->kb_layout_packages);
+
+ return EFI_SUCCESS;
+
+out:
+ free_keyboard_layouts(package);
+ free(package);
+
+ return EFI_OUT_OF_RESOURCES;
+}
+
static struct efi_hii_packagelist *new_packagelist(void)
{
struct efi_hii_packagelist *hii;
@@ -222,6 +303,7 @@ static struct efi_hii_packagelist *new_packagelist(void)
hii->max_string_id = 0;
INIT_LIST_HEAD(&hii->string_tables);
INIT_LIST_HEAD(&hii->guid_list);
+ INIT_LIST_HEAD(&hii->kb_layout_packages);
return hii;
}
@@ -230,6 +312,7 @@ static void free_packagelist(struct efi_hii_packagelist *hii)
{
remove_strings_package(hii);
remove_guid_package(hii);
+ remove_keyboard_layout_package(hii);
list_del(&hii->link);
free(hii);
@@ -284,8 +367,9 @@ add_packages(struct efi_hii_packagelist *hii,
ret = EFI_INVALID_PARAMETER;
break;
case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
- printf("\tKeyboard layout package not supported\n");
- ret = EFI_INVALID_PARAMETER;
+ ret = add_keyboard_layout_package(hii,
+ (struct efi_hii_keyboard_layout_package *)
+ package);
break;
case EFI_HII_PACKAGE_ANIMATIONS:
printf("\tAnimation package not supported\n");
@@ -418,7 +502,7 @@ update_package_list(const struct efi_hii_database_protocol *this,
ret = EFI_INVALID_PARAMETER;
break;
case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
- printf("\tKeyboard layout package not supported\n");
+ remove_keyboard_layout_package(hii);
break;
case EFI_HII_PACKAGE_ANIMATIONS:
printf("\tAnimation package not supported\n");
@@ -506,7 +590,8 @@ list_package_lists(const struct efi_hii_database_protocol *this,
ret = EFI_INVALID_PARAMETER;
continue;
case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
- printf("\tKeyboard layout package not supported\n");
+ if (!list_empty(&hii->kb_layout_packages))
+ break;
continue;
case EFI_HII_PACKAGE_ANIMATIONS:
printf("\tAnimation package not supported\n");
@@ -580,9 +665,29 @@ find_keyboard_layouts(const struct efi_hii_database_protocol *this,
u16 *key_guid_buffer_length,
efi_guid_t *key_guid_buffer)
{
+ struct efi_kb_layout_data *data;
+ int package_cnt, package_max;
+ efi_status_t ret = EFI_SUCCESS;
+
EFI_ENTRY("%p, %p, %p", this, key_guid_buffer_length, key_guid_buffer);
- return EFI_EXIT(EFI_NOT_FOUND);
+ if (!key_guid_buffer_length ||
+ (*key_guid_buffer_length && !key_guid_buffer))
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ package_cnt = 0;
+ package_max = *key_guid_buffer_length / sizeof(*key_guid_buffer);
+ list_for_each_entry(data, &efi_kb_layout_list, link_sys) {
+ package_cnt++;
+ if (package_cnt <= package_max)
+ memcpy(key_guid_buffer++, &data->kb_layout.guid,
+ sizeof(*key_guid_buffer));
+ else
+ ret = EFI_BUFFER_TOO_SMALL;
+ }
+ *key_guid_buffer_length = package_cnt * sizeof(*key_guid_buffer);
+
+ return EFI_EXIT(ret);
}
static efi_status_t EFIAPI
@@ -591,10 +696,36 @@ get_keyboard_layout(const struct efi_hii_database_protocol *this,
u16 *keyboard_layout_length,
struct efi_hii_keyboard_layout *keyboard_layout)
{
+ struct efi_kb_layout_data *data;
+
EFI_ENTRY("%p, %pUl, %p, %p", this, key_guid, keyboard_layout_length,
keyboard_layout);
+ if (!keyboard_layout_length ||
+ (*keyboard_layout_length && !keyboard_layout))
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ /* TODO: no notion of current keyboard layout */
+ if (!key_guid)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ list_for_each_entry(data, &efi_kb_layout_list, link_sys) {
+ if (!guidcmp(&data->kb_layout.guid, key_guid))
+ goto found;
+ }
+
return EFI_EXIT(EFI_NOT_FOUND);
+
+found:
+ if (*keyboard_layout_length < data->kb_layout.layout_length) {
+ *keyboard_layout_length = data->kb_layout.layout_length;
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+ }
+
+ memcpy(keyboard_layout, &data->kb_layout,
+ sizeof(data->kb_layout.layout_length));
+
+ return EFI_EXIT(EFI_SUCCESS);
}
static efi_status_t EFIAPI
--
2.19.0
More information about the U-Boot
mailing list