nes-proj/platform/galileo/contiki-main.c
Nicolas Tsiftes ece7cfee38 Merge pull request #1835 from mdlemay/gp-exc-handler
galileo: Add general protection exception handler
2016-12-08 20:12:45 +01:00

139 lines
4.1 KiB
C

/*
* Copyright (C) 2015-2016, Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include "contiki.h"
#include "contiki-net.h"
#include "cpu.h"
#include "eth.h"
#include "eth-conf.h"
#include "galileo-pinmux.h"
#include "gpio.h"
#include "helpers.h"
#include "i2c.h"
#include "imr-conf.h"
#include "interrupt.h"
#include "irq.h"
#include "pci.h"
#include "prot-domains.h"
#include "shared-isr.h"
#include "uart.h"
PROCINIT( &etimer_process
, &tcpip_process
#if WITH_DNS
, &resolv_process
#endif
);
extern int _sdata_kern_startup_func, _edata_kern_startup_func;
/*---------------------------------------------------------------------------*/
void
app_main(void)
{
printf("Starting Contiki\n");
process_init();
procinit_init();
ctimer_init();
eth_init();
autostart_start(autostart_processes);
while(1) {
process_run();
}
halt();
}
/*---------------------------------------------------------------------------*/
static void
gp_fault_handler(struct interrupt_context context)
{
fprintf(stderr, "General protection exception @%08x (ec: %u)\n",
context.eip, context.error_code);
halt();
}
/*---------------------------------------------------------------------------*/
/* Kernel entrypoint */
int
main(void)
{
uintptr_t *func_ptr;
#ifdef X86_CONF_RESTRICT_DMA
quarkX1000_imr_conf();
#endif
irq_init();
quarkX1000_uart_init();
/* Initialize UART connected to Galileo Gen1 3.5mm audio-style jack or
* Galileo Gen2 FTDI header
*/
quarkX1000_uart_init_port(QUARK_X1000_UART_1, 115200);
SET_EXCEPTION_HANDLER(13, 1, gp_fault_handler);
clock_init();
rtimer_init();
pci_root_complex_init();
quarkX1000_eth_init();
quarkX1000_i2c_init();
quarkX1000_i2c_configure(QUARKX1000_I2C_SPEED_STANDARD,
QUARKX1000_I2C_ADDR_MODE_7BIT);
/* The GPIO subsystem must be initialized prior to configuring pinmux, because
* the pinmux configuration automatically performs GPIO configuration for the
* relevant pins.
*/
quarkX1000_gpio_init();
/* use default pinmux configuration */
if(galileo_pinmux_initialize() < 0) {
fprintf(stderr, "Failed to initialize pinmux\n");
}
shared_isr_init();
/* The ability to remap interrupts is not needed after this point and should
* thus be disabled according to the principle of least privilege.
*/
pci_root_complex_lock();
func_ptr = (uintptr_t *)&_sdata_kern_startup_func;
while(func_ptr != (uintptr_t *)&_edata_kern_startup_func) {
((void (*)(void))*func_ptr)();
func_ptr++;
}
prot_domains_leave_main();
return 0;
}
/*---------------------------------------------------------------------------*/