mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 21:54:01 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
415 lines
12 KiB
C
415 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* efi_selftest_controllers
|
|
*
|
|
* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
|
|
*
|
|
* This unit test checks the following protocol services:
|
|
* ConnectController, DisconnectController,
|
|
* InstallProtocol, ReinstallProtocol, UninstallProtocol,
|
|
* OpenProtocol, CloseProtcol, OpenProtocolInformation
|
|
*/
|
|
|
|
#include <efi_selftest.h>
|
|
|
|
#define NUMBER_OF_CHILD_CONTROLLERS 4
|
|
|
|
static int interface1 = 1;
|
|
static int interface2 = 2;
|
|
static struct efi_boot_services *boottime;
|
|
const efi_guid_t guid_driver_binding_protocol =
|
|
EFI_DRIVER_BINDING_PROTOCOL_GUID;
|
|
static efi_guid_t guid_controller =
|
|
EFI_GUID(0xe6ab1d96, 0x6bff, 0xdb42,
|
|
0xaa, 0x05, 0xc8, 0x1f, 0x7f, 0x45, 0x26, 0x34);
|
|
static efi_guid_t guid_child_controller =
|
|
EFI_GUID(0x1d41f6f5, 0x2c41, 0xddfb,
|
|
0xe2, 0x9b, 0xb8, 0x0e, 0x2e, 0xe8, 0x3a, 0x85);
|
|
static efi_handle_t handle_controller;
|
|
static efi_handle_t handle_child_controller[NUMBER_OF_CHILD_CONTROLLERS];
|
|
static efi_handle_t handle_driver;
|
|
|
|
/*
|
|
* Count child controllers
|
|
*
|
|
* @handle handle on which child controllers are installed
|
|
* @protocol protocol for which the child controllers were installed
|
|
* @count number of child controllers
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t count_child_controllers(efi_handle_t handle,
|
|
efi_guid_t *protocol,
|
|
efi_uintn_t *count)
|
|
{
|
|
efi_status_t ret;
|
|
efi_uintn_t entry_count;
|
|
struct efi_open_protocol_info_entry *entry_buffer;
|
|
|
|
*count = 0;
|
|
ret = boottime->open_protocol_information(handle, protocol,
|
|
&entry_buffer, &entry_count);
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
if (!entry_count)
|
|
return EFI_SUCCESS;
|
|
while (entry_count) {
|
|
if (entry_buffer[--entry_count].attributes &
|
|
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER)
|
|
++*count;
|
|
}
|
|
ret = boottime->free_pool(entry_buffer);
|
|
if (ret != EFI_SUCCESS)
|
|
efi_st_error("Cannot free buffer\n");
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Check if the driver supports the controller.
|
|
*
|
|
* @this driver binding protocol
|
|
* @controller_handle handle of the controller
|
|
* @remaining_device_path path specifying the child controller
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t EFIAPI supported(
|
|
struct efi_driver_binding_protocol *this,
|
|
efi_handle_t controller_handle,
|
|
struct efi_device_path *remaining_device_path)
|
|
{
|
|
efi_status_t ret;
|
|
void *interface;
|
|
|
|
ret = boottime->open_protocol(
|
|
controller_handle, &guid_controller,
|
|
&interface, handle_driver,
|
|
controller_handle, EFI_OPEN_PROTOCOL_BY_DRIVER);
|
|
switch (ret) {
|
|
case EFI_ACCESS_DENIED:
|
|
case EFI_ALREADY_STARTED:
|
|
return ret;
|
|
case EFI_SUCCESS:
|
|
break;
|
|
default:
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
ret = boottime->close_protocol(
|
|
controller_handle, &guid_controller,
|
|
handle_driver, controller_handle);
|
|
if (ret != EFI_SUCCESS)
|
|
ret = EFI_UNSUPPORTED;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Create child controllers and attach driver.
|
|
*
|
|
* @this driver binding protocol
|
|
* @controller_handle handle of the controller
|
|
* @remaining_device_path path specifying the child controller
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t EFIAPI start(
|
|
struct efi_driver_binding_protocol *this,
|
|
efi_handle_t controller_handle,
|
|
struct efi_device_path *remaining_device_path)
|
|
{
|
|
size_t i;
|
|
efi_status_t ret;
|
|
void *interface;
|
|
|
|
/* Attach driver to controller */
|
|
ret = boottime->open_protocol(
|
|
controller_handle, &guid_controller,
|
|
&interface, handle_driver,
|
|
controller_handle, EFI_OPEN_PROTOCOL_BY_DRIVER);
|
|
switch (ret) {
|
|
case EFI_ACCESS_DENIED:
|
|
case EFI_ALREADY_STARTED:
|
|
return ret;
|
|
case EFI_SUCCESS:
|
|
break;
|
|
default:
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/* Create child controllers */
|
|
for (i = 0; i < NUMBER_OF_CHILD_CONTROLLERS; ++i) {
|
|
/* Creating a new handle for the child controller */
|
|
handle_child_controller[i] = 0;
|
|
ret = boottime->install_protocol_interface(
|
|
&handle_child_controller[i], &guid_child_controller,
|
|
EFI_NATIVE_INTERFACE, NULL);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("InstallProtocolInterface failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
ret = boottime->open_protocol(
|
|
controller_handle, &guid_controller,
|
|
&interface, handle_child_controller[i],
|
|
handle_child_controller[i],
|
|
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("OpenProtocol failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Remove a single child controller from the parent controller.
|
|
*
|
|
* @controller_handle parent controller
|
|
* @child_handle child controller
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t disconnect_child(efi_handle_t controller_handle,
|
|
efi_handle_t child_handle)
|
|
{
|
|
efi_status_t ret;
|
|
|
|
ret = boottime->close_protocol(
|
|
controller_handle, &guid_controller,
|
|
child_handle, child_handle);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Cannot close protocol\n");
|
|
return ret;
|
|
}
|
|
ret = boottime->uninstall_protocol_interface(
|
|
child_handle, &guid_child_controller, NULL);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Cannot uninstall protocol interface\n");
|
|
return ret;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Remove child controllers and disconnect the controller.
|
|
*
|
|
* @this driver binding protocol
|
|
* @controller_handle handle of the controller
|
|
* @number_of_children number of child controllers to remove
|
|
* @child_handle_buffer handles of the child controllers to remove
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t EFIAPI stop(
|
|
struct efi_driver_binding_protocol *this,
|
|
efi_handle_t controller_handle,
|
|
size_t number_of_children,
|
|
efi_handle_t *child_handle_buffer)
|
|
{
|
|
efi_status_t ret;
|
|
efi_uintn_t count;
|
|
struct efi_open_protocol_info_entry *entry_buffer;
|
|
|
|
/* Destroy provided child controllers */
|
|
if (number_of_children) {
|
|
efi_uintn_t i;
|
|
|
|
for (i = 0; i < number_of_children; ++i) {
|
|
ret = disconnect_child(controller_handle,
|
|
child_handle_buffer[i]);
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
}
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/* Destroy all children */
|
|
ret = boottime->open_protocol_information(
|
|
controller_handle, &guid_controller,
|
|
&entry_buffer, &count);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("OpenProtocolInformation failed\n");
|
|
return ret;
|
|
}
|
|
while (count) {
|
|
if (entry_buffer[--count].attributes &
|
|
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) {
|
|
ret = disconnect_child(
|
|
controller_handle,
|
|
entry_buffer[count].agent_handle);
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
}
|
|
}
|
|
ret = boottime->free_pool(entry_buffer);
|
|
if (ret != EFI_SUCCESS)
|
|
efi_st_error("Cannot free buffer\n");
|
|
|
|
/* Detach driver from controller */
|
|
ret = boottime->close_protocol(
|
|
controller_handle, &guid_controller,
|
|
handle_driver, controller_handle);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Cannot close protocol\n");
|
|
return ret;
|
|
}
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/* Driver binding protocol interface */
|
|
static struct efi_driver_binding_protocol binding_interface = {
|
|
supported,
|
|
start,
|
|
stop,
|
|
0xffffffff,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
/*
|
|
* Setup unit test.
|
|
*
|
|
* @handle handle of the loaded image
|
|
* @systable system table
|
|
*/
|
|
static int setup(const efi_handle_t img_handle,
|
|
const struct efi_system_table *systable)
|
|
{
|
|
efi_status_t ret;
|
|
|
|
boottime = systable->boottime;
|
|
|
|
/* Create controller handle */
|
|
ret = boottime->install_protocol_interface(
|
|
&handle_controller, &guid_controller,
|
|
EFI_NATIVE_INTERFACE, &interface1);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("InstallProtocolInterface failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Create driver handle */
|
|
ret = boottime->install_protocol_interface(
|
|
&handle_driver, &guid_driver_binding_protocol,
|
|
EFI_NATIVE_INTERFACE, &binding_interface);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("InstallProtocolInterface failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
return EFI_ST_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Execute unit test.
|
|
*
|
|
* The number of child controllers is checked after each of the following
|
|
* actions:
|
|
*
|
|
* Connect a controller to a driver.
|
|
* Disconnect and destroy a child controller.
|
|
* Disconnect and destroy the remaining child controllers.
|
|
*
|
|
* Connect a controller to a driver.
|
|
* Reinstall the driver protocol on the controller.
|
|
* Uninstall the driver protocol from the controller.
|
|
*/
|
|
static int execute(void)
|
|
{
|
|
efi_status_t ret;
|
|
efi_uintn_t count;
|
|
|
|
/* Connect controller to driver */
|
|
ret = boottime->connect_controller(handle_controller, NULL, NULL, 1);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to connect controller\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret != EFI_SUCCESS || count != NUMBER_OF_CHILD_CONTROLLERS) {
|
|
efi_st_error("Number of children %u != %u\n",
|
|
(unsigned int)count, NUMBER_OF_CHILD_CONTROLLERS);
|
|
}
|
|
/* Destroy second child controller */
|
|
ret = boottime->disconnect_controller(handle_controller,
|
|
handle_driver,
|
|
handle_child_controller[1]);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to disconnect child controller\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret != EFI_SUCCESS || count != NUMBER_OF_CHILD_CONTROLLERS - 1) {
|
|
efi_st_error("Destroying single child controller failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Destroy remaining child controllers and disconnect controller */
|
|
ret = boottime->disconnect_controller(handle_controller, NULL, NULL);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to disconnect controller\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret != EFI_SUCCESS || count) {
|
|
efi_st_error("Destroying child controllers failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* Connect controller to driver */
|
|
ret = boottime->connect_controller(handle_controller, NULL, NULL, 1);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to connect controller\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret != EFI_SUCCESS || count != NUMBER_OF_CHILD_CONTROLLERS) {
|
|
efi_st_error("Number of children %u != %u\n",
|
|
(unsigned int)count, NUMBER_OF_CHILD_CONTROLLERS);
|
|
}
|
|
/* Try to uninstall controller protocol using the wrong interface */
|
|
ret = boottime->uninstall_protocol_interface(handle_controller,
|
|
&guid_controller,
|
|
&interface2);
|
|
if (ret == EFI_SUCCESS) {
|
|
efi_st_error(
|
|
"Interface not checked when uninstalling protocol\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Reinstall controller protocol */
|
|
ret = boottime->reinstall_protocol_interface(handle_controller,
|
|
&guid_controller,
|
|
&interface1,
|
|
&interface2);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to reinstall protocols\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret != EFI_SUCCESS || count != NUMBER_OF_CHILD_CONTROLLERS) {
|
|
efi_st_error("Number of children %u != %u\n",
|
|
(unsigned int)count, NUMBER_OF_CHILD_CONTROLLERS);
|
|
}
|
|
/* Uninstall controller protocol */
|
|
ret = boottime->uninstall_protocol_interface(handle_controller,
|
|
&guid_controller,
|
|
&interface2);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to uninstall protocols\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* Check number of child controllers */
|
|
ret = count_child_controllers(handle_controller, &guid_controller,
|
|
&count);
|
|
if (ret == EFI_SUCCESS)
|
|
efi_st_error("Uninstall failed\n");
|
|
return EFI_ST_SUCCESS;
|
|
}
|
|
|
|
EFI_UNIT_TEST(controllers) = {
|
|
.name = "controllers",
|
|
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
|
|
.setup = setup,
|
|
.execute = execute,
|
|
};
|