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drivers: gpio: add system call handlers

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Many APIs had two versions, by port and by pin, which called the same
API with different parameters. This has been reorganized to reduce
the number of system calls.

Callback registration API skipped.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2017-10-26 13:43:24 -07:00 • committed by Andrew Boie
commit d3ec6654f5
3 changed files with 118 additions and 32 deletions
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45
drivers/gpio/gpio_handlers.c Normal file
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/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <gpio.h>
#include <syscall_handler.h>
_SYSCALL_HANDLER(gpio_config, port, access_op, pin, flags)
{
_SYSCALL_OBJ(port, K_OBJ_DRIVER_GPIO);
return _impl_gpio_config((struct device *)port, access_op, pin, flags);
}
_SYSCALL_HANDLER(gpio_write, port, access_op, pin, value)
{
_SYSCALL_OBJ(port, K_OBJ_DRIVER_GPIO);
return _impl_gpio_write((struct device *)port, access_op, pin, value);
}
_SYSCALL_HANDLER(gpio_read, port, access_op, pin, value)
{
_SYSCALL_OBJ(port, K_OBJ_DRIVER_GPIO);
_SYSCALL_MEMORY_WRITE(value, sizeof(u32_t));
return _impl_gpio_read((struct device *)port, access_op, pin,
(u32_t *)value);
}
_SYSCALL_HANDLER(gpio_enable_callback, port, access_op, pin)
{
_SYSCALL_OBJ(port, K_OBJ_DRIVER_GPIO);
return _impl_gpio_enable_callback((struct device *)port, access_op,
pin);
}
_SYSCALL_HANDLER(gpio_disable_callback, port, access_op, pin)
{
_SYSCALL_OBJ(port, K_OBJ_DRIVER_GPIO);
return _impl_gpio_disable_callback((struct device *)port, access_op,
pin);
}
_SYSCALL_HANDLER1_SIMPLE(gpio_get_pending_int, K_OBJ_DRIVER_GPIO,
struct device *);