mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-28 21:16:02 +00:00
8345e5ebf0
The various macros to do checks in system call handlers all implictly would generate a kernel oops if a check failed. This is undesirable for a few reasons: * System call handlers that acquire resources in the handler have no good recourse for cleanup if a check fails. * In some cases we may want to propagate a return value back to the caller instead of just killing the calling thread, even though the base API doesn't do these checks. These macros now all return a value, if nonzero is returned the check failed. K_OOPS() now wraps these calls to generate a kernel oops. At the moment, the policy for all APIs has not changed. They still all oops upon a failed check/ The macros now use the Z_ notation for private APIs. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
|
|
* Copyright (c) 2017 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <gpio.h>
|
|
#include <syscall_handler.h>
|
|
|
|
Z_SYSCALL_HANDLER(gpio_config, port, access_op, pin, flags)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, config));
|
|
return _impl_gpio_config((struct device *)port, access_op, pin, flags);
|
|
}
|
|
|
|
Z_SYSCALL_HANDLER(gpio_write, port, access_op, pin, value)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, write));
|
|
return _impl_gpio_write((struct device *)port, access_op, pin, value);
|
|
}
|
|
|
|
Z_SYSCALL_HANDLER(gpio_read, port, access_op, pin, value)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, read));
|
|
Z_OOPS(Z_SYSCALL_MEMORY_WRITE(value, sizeof(u32_t)));
|
|
return _impl_gpio_read((struct device *)port, access_op, pin,
|
|
(u32_t *)value);
|
|
}
|
|
|
|
Z_SYSCALL_HANDLER(gpio_enable_callback, port, access_op, pin)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, enable_callback));
|
|
return _impl_gpio_enable_callback((struct device *)port, access_op,
|
|
pin);
|
|
}
|
|
|
|
Z_SYSCALL_HANDLER(gpio_disable_callback, port, access_op, pin)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, disable_callback));
|
|
return _impl_gpio_disable_callback((struct device *)port, access_op,
|
|
pin);
|
|
}
|
|
|
|
Z_SYSCALL_HANDLER(gpio_get_pending_int, port)
|
|
{
|
|
Z_OOPS(Z_SYSCALL_DRIVER_GPIO(port, get_pending_int));
|
|
return _impl_gpio_get_pending_int((struct device *)port);
|
|
}
|