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https://github.com/zephyrproject-rtos/zephyr
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c200367b68
Driver APIs might not implement all operations, making it possible for a user thread to get the kernel to execute a function at 0x00000000. Perform runtime checks in all the driver handlers, checking if they're capable of performing the requested operation. Fixes #6907. Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <gpio.h>
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#include <syscall_handler.h>
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_SYSCALL_HANDLER(gpio_config, port, access_op, pin, flags)
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{
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_SYSCALL_DRIVER_GPIO(port, config);
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return _impl_gpio_config((struct device *)port, access_op, pin, flags);
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}
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_SYSCALL_HANDLER(gpio_write, port, access_op, pin, value)
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{
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_SYSCALL_DRIVER_GPIO(port, write);
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return _impl_gpio_write((struct device *)port, access_op, pin, value);
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}
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_SYSCALL_HANDLER(gpio_read, port, access_op, pin, value)
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{
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_SYSCALL_DRIVER_GPIO(port, read);
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_SYSCALL_MEMORY_WRITE(value, sizeof(u32_t));
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return _impl_gpio_read((struct device *)port, access_op, pin,
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(u32_t *)value);
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}
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_SYSCALL_HANDLER(gpio_enable_callback, port, access_op, pin)
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{
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_SYSCALL_DRIVER_GPIO(port, enable_callback);
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return _impl_gpio_enable_callback((struct device *)port, access_op,
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pin);
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}
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_SYSCALL_HANDLER(gpio_disable_callback, port, access_op, pin)
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{
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_SYSCALL_DRIVER_GPIO(port, disable_callback);
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return _impl_gpio_disable_callback((struct device *)port, access_op,
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pin);
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}
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_SYSCALL_HANDLER(gpio_get_pending_int, port)
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{
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_SYSCALL_DRIVER_GPIO(port, get_pending_int);
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return _impl_gpio_get_pending_int((struct device *)port);
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}
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