static int gpio_sch_config(struct device *dev,
int access_op, u32_t pin, int flags)
{
const struct gpio_sch_config *info = dev->config->config_info;
/* Do some sanity check first */
if (flags & GPIO_INT) {
if (!(flags & GPIO_INT_EDGE)) {
/* controller does not support level trigger */
return -EINVAL;
}
}
if (access_op == GPIO_ACCESS_BY_PIN) {
if (pin >= info->bits) {
return -EINVAL;
}
gpio_pin_config(dev, pin, flags);
} else {
gpio_port_config(dev, flags);
}
return 0;
}
/*
* usrmain() - start the monitor
*
* This function is called from from rom_entry. It initialises the
* serial port (ASC0) and then starts the monitor program.
*
*/
void usrmain(void)
{
#if (ASC0_PORT==0)
gpio_port_config(0, 4, GPIO_MODE_OUT|GPIO_MODE_ALT2);
gpio_port_config(0, 5, GPIO_MODE_IN);
asc_init(ASC0, 1);
#elif (ASC0_PORT==2)
gpio_port_config(2, 4, GPIO_MODE_OUT|GPIO_MODE_ALT1);
gpio_port_config(2, 5, GPIO_MODE_IN);
asc_init(ASC0, 0);
#endif
ASC0->asc_tbuf = '\r'; /* kick out a character to start things rolling */
printf("qdf version 0.1, copyright 2001 David Haworth\n");
printf("qdf comes with ABSOLUTELY NO WARRANTY. It is free software,\n");
printf("and you are welcome to redistribute it under certain conditions.\n");
printf("Please read the file COPYING for details.\n");
for (;;)
do_forth(&forth_env);
}
/*
* usrmain() - start the kernel
*
* This function is called from from rom_entry. It initialises the
* serial port (ASC0) for kernel debug messages and then starts the
* kernel program.
*
*/
void usrmain(void)
{
#if (ASC0_PORT==0)
gpio_port_config(0, 4, GPIO_MODE_OUT|GPIO_MODE_ALT2);
gpio_port_config(0, 5, GPIO_MODE_IN);
asc_init(ASC0, 1);
#elif (ASC0_PORT==2)
gpio_port_config(2, 4, GPIO_MODE_OUT|GPIO_MODE_ALT1);
gpio_port_config(2, 5, GPIO_MODE_IN);
asc_init(ASC0, 0);
#endif
ASC0->asc_tbuf = '\r'; /* kick out a character to start things rolling */
kprintf("davros version 0.1, copyright 2001 David Haworth\n");
kprintf("davros comes with ABSOLUTELY NO WARRANTY. It is free software,\n");
kprintf("and you are welcome to redistribute it under certain conditions.\n");
kprintf("Please read the file COPYING for details.\n");
__davros_init((memaddr_t)&__bss_end, (RAM_START+RAM_SIZE));
/* Never returns */
}
/*
* __arch_init() - start the drivers, etc.
*
*/
void __arch_init(void)
{
set_biv((uint32_t)interrupt_table);
set_btv((uint32_t)exception_table);
CPS->cps_src3 = ISR_CLRR;
CPS->cps_src2 = ISR_CLRR;
CPS->cps_src1 = ISR_CLRR;
CPS->cps_src0 = ISR_CLRR;
gptu_timer_stop(GPTU0, 0);
gptu_timer_stop(GPTU0, 1);
gptu_timer_stop(GPTU1, 0);
gptu_timer_stop(GPTU1, 1);
GPTU0->gptu_gtsrc7 = ISR_CLRR;
GPTU0->gptu_gtsrc6 = ISR_CLRR;
GPTU0->gptu_gtsrc5 = ISR_CLRR;
GPTU0->gptu_gtsrc4 = ISR_CLRR;
GPTU0->gptu_gtsrc3 = ISR_CLRR;
GPTU0->gptu_gtsrc2 = ISR_CLRR;
GPTU0->gptu_gtsrc1 = ISR_CLRR;
GPTU0->gptu_gtsrc0 = ISR_CLRR;
GPTU1->gptu_gtsrc7 = ISR_CLRR;
GPTU1->gptu_gtsrc6 = ISR_CLRR;
GPTU1->gptu_gtsrc5 = ISR_CLRR;
GPTU1->gptu_gtsrc4 = ISR_CLRR;
GPTU1->gptu_gtsrc3 = ISR_CLRR;
GPTU1->gptu_gtsrc2 = ISR_CLRR;
GPTU1->gptu_gtsrc1 = ISR_CLRR;
GPTU1->gptu_gtsrc0 = ISR_CLRR;
asc_polled_init(ASC0);
asc_polled_init(ASC1);
enable_interrupts();
if ( gptu_timer_start(GPTU0, 0, __DAVROS_INUM_TIMER, __DAVROS_HZ) != 0 )
{
kprintf("gptu_timer_start() returned error.\n");
return;
}
if ( __davros_attach_interrupt(__DAVROS_INUM_TIMER,
(__davros_intfunc_t)__davros_tick, NULL) != 0 )
{
kprintf("__davros_attach_interrupt() returned error.\n");
return;
}
if ( gptu_timer_enable_int(GPTU0, 0) != 0 )
{
kprintf("gptu_timer_enable_int() returned error.\n");
return;
}
#if (ASC1_PORT==0)
gpio_port_config(0, 6, GPIO_MODE_OUT|GPIO_MODE_ALT2);
gpio_port_config(0, 7, GPIO_MODE_IN);
#elif (ASC1_PORT==2)
gpio_port_config(2, 6, GPIO_MODE_OUT|GPIO_MODE_ALT1);
gpio_port_config(2, 7, GPIO_MODE_IN);
#endif
asc_tty_create("tty/0", ASC0, __DAVROS_INUM_ASC0, (ASC0_PORT==0));
asc_tty_create("tty/1", ASC1, __DAVROS_INUM_ASC1, (ASC1_PORT==0));
}
