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/*
* Copyright © 2013 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <ao.h>
#include <string.h>
#include <ao_boot.h>
#ifndef IS_FLASH_LOADER
#error Should define IS_FLASH_LOADER
#define IS_FLASH_LOADER 0
#endif
#if !IS_FLASH_LOADER
#define RELOCATE_INTERRUPT 1
#endif
extern void main(void);
extern char __stack__;
extern char __text_start__, __text_end__;
extern char __data_start__, __data_end__;
extern char __bss_start__, __bss_end__;
#if RELOCATE_INTERRUPT
extern char __interrupt_rom__, __interrupt_start__, __interrupt_end__;
#endif
/* Interrupt functions */
void lpc_halt_isr(void)
{
ao_panic(AO_PANIC_CRASH);
}
void lpc_ignore_isr(void)
{
}
void start(void) {
#ifdef AO_BOOT_CHAIN
if (ao_boot_check_chain()) {
#ifdef AO_BOOT_PIN
ao_boot_check_pin();
#endif
}
#endif
#if RELOCATE_INTERRUPT
memcpy(&__interrupt_start__, &__interrupt_rom__, &__interrupt_end__ - &__interrupt_start__);
lpc_scb.sysmemremap = LPC_SCB_SYSMEMREMAP_MAP_RAM << LPC_SCB_SYSMEMREMAP_MAP;
#endif
memcpy(&__data_start__, &__text_end__, &__data_end__ - &__data_start__);
memset(&__bss_start__, '\0', &__bss_end__ - &__bss_start__);
main();
}
#define STRINGIFY(x) #x
#define isr(name) \
void __attribute__ ((weak)) lpc_ ## name ## _isr(void); \
_Pragma(STRINGIFY(weak lpc_ ## name ## _isr = lpc_ignore_isr))
#define isr_halt(name) \
void __attribute__ ((weak)) lpc_ ## name ## _isr(void); \
_Pragma(STRINGIFY(weak lpc_ ## name ## _isr = lpc_halt_isr))
isr(nmi)
isr_halt(hardfault)
isr_halt(memmanage)
isr_halt(busfault)
isr_halt(usagefault)
isr(svc)
isr(debugmon)
isr(pendsv)
isr(systick)
isr(pin_int0) /* IRQ0 */
isr(pin_int1)
isr(pin_int2)
isr(pin_int3)
isr(pin_int4) /* IRQ4 */
isr(pin_int5)
isr(pin_int6)
isr(pin_int7)
isr(gint0) /* IRQ8 */
isr(gint1)
isr(ssp1)
isr(i2c)
isr(ct16b0) /* IRQ16 */
isr(ct16b1)
isr(ct32b0)
isr(ct32b1)
isr(ssp0) /* IRQ20 */
isr(usart)
isr(usb_irq)
isr(usb_fiq)
isr(adc) /* IRQ24 */
isr(wwdt)
isr(bod)
isr(flash)
isr(usb_wakeup)
#define i(addr,name) [(addr)/4] = lpc_ ## name ## _isr
#define c(addr,value) [(addr)/4] = (value)
__attribute__ ((section(".interrupt")))
const void *lpc_interrupt_vector[] = {
[0] = &__stack__,
[1] = start,
i(0x08, nmi),
i(0x0c, hardfault),
c(0x10, 0),
c(0x14, 0),
c(0x18, 0),
c(0x1c, 0),
c(0x20, 0),
c(0x24, 0),
c(0x28, 0),
i(0x2c, svc),
i(0x30, hardfault),
i(0x34, hardfault),
i(0x38, pendsv),
i(0x3c, systick),
i(0x40, pin_int0), /* IRQ0 */
i(0x44, pin_int1),
i(0x48, pin_int2),
i(0x4c, pin_int3),
i(0x50, pin_int4), /* IRQ4 */
i(0x54, pin_int5),
i(0x58, pin_int6),
i(0x5c, pin_int7),
i(0x60, gint0), /* IRQ8 */
i(0x64, gint1),
i(0x68, hardfault),
i(0x6c, hardfault),
i(0x70, hardfault), /* IRQ12 */
i(0x74, hardfault),
i(0x78, ssp1),
i(0x7c, i2c),
i(0x80, ct16b0), /* IRQ16 */
i(0x84, ct16b1),
i(0x88, ct32b0),
i(0x8c, ct32b1),
i(0x90, ssp0), /* IRQ20 */
i(0x94, usart),
i(0x98, usb_irq),
i(0x9c, usb_fiq),
i(0xa0, adc), /* IRQ24 */
i(0xa4, wwdt),
i(0xa8, bod),
i(0xac, flash),
i(0xb0, hardfault), /* IRQ28 */
i(0xb4, hardfault),
i(0xb8, usb_wakeup),
i(0xbc, hardfault),
};
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