contiki/cpu/x86/drivers/legacy_pc/uart-16x50.h
Michael LeMay bde8eb35ae x86, galileo: Fix UART system call authorization initialization
This patch fixes UART system call authorization initialization (when
protection domain support is enabled) to only initialize the system call
entrypoint and authorization data structures once, prior to per-port
setup. Previously, if two UARTs were configured, the setup procedure for
the second UART would erase the system call authorization for the
first (console) UART, resulting in a crash upon the next attempt to
perform console output.
2016-08-04 16:09:44 -07:00

47 lines
2.0 KiB
C

/*
* Copyright (C) 2015, Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
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* 2. Redistributions in binary form must reproduce the above copyright
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* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
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* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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*/
#ifndef CPU_X86_DRIVERS_LEGACY_PC_UART_16X50_H_
#define CPU_X86_DRIVERS_LEGACY_PC_UART_16X50_H_
#include "pci.h"
typedef pci_driver_t uart_16x50_driver_t;
void uart_16x50_init(void);
void uart_16x50_init_port(uart_16x50_driver_t ATTR_KERN_ADDR_SPACE *c_this,
pci_config_addr_t pci_addr,
uint16_t dl);
void uart_16x50_tx(uart_16x50_driver_t c_this, uint8_t c);
#endif /* CPU_X86_DRIVERS_LEGACY_PC_UART_16X50_H_ */