/*
* (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
*
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0
*/
#include "common.h"
#include <avr/interrupt.h>
+#include <avr/wdt.h>
#include <stdlib.h>
-#include <stdio.h>
#include "config.h"
#include "ff.h"
#include "time.h"
#include "rtc.h"
#include "debug.h"
+#include "cmd_fat.h"
-static uint8_t mcusr;
-/*--------------------------------------------------------------------------*/
-#if DEBUG
+uint8_t mcusr __attribute__ ((section (".noinit")));
+#if DEBUG
__attribute__ ((naked)) __attribute__ ((section (".init3")))
void preset_ram (void)
{
- for (uint8_t *p = RAMSTART; p <= (uint8_t *) RAMEND; p++)
+ for (uint8_t *p = (uint8_t *) RAMSTART; p <= (uint8_t *) RAMEND; p++)
*p = 0xdd;
}
+#endif
+
+__attribute__ ((naked)) __attribute__ ((section (".init3")))
+void get_mcusr (void)
+{
+ /* save and clear reset reason(s) */
+ /* TODO: move to init section? */
+ mcusr = MCUSR;
+ MCUSR = 0;
+
+ wdt_disable();
+}
+
+/*--------------------------------------------------------------------------*/
+#if DEBUG
static const FLASH char * const FLASH rreasons[] = {
FSTR("Power on"),
uint8_t r = mcusr & 0x1f;
const FLASH char * const FLASH *p = rreasons;
- printf_P(PSTR("### Reset reason(s): %s"), r ? "" : "none");
+ my_puts_P(PSTR("### Reset reason(s): "));
+ if (r == 0)
+ my_puts_P(PSTR("none"));
for ( ; r; p++, r >>= 1) {
if (r & 1) {
my_puts_P(*p);
if (r & ~1)
- printf_P(PSTR(", "));
+ my_puts_P(PSTR(", "));
}
}
- printf_P(PSTR(".\n"));
+ my_puts_P(PSTR(".\n"));
}
#endif
static
void setup_avr(void)
{
- /* save and clear reset reason(s) */
- /* TODO: move to init section? */
- mcusr = MCUSR;
- MCUSR = 0;
-
- /* WD */
-
/* CPU */
/* Disable JTAG Interface regardless of the JTAGEN fuse setting. */
_BV(PRUSART3) | _BV(PRUSART2) | _BV(PRUSART1);
- /* disable analog comparator */
+ /* Disable analog comparator */
ACSR = _BV(ACD);
/* Ports */
CLKPR = _BV(CLKPCE);
CLKPR = 0;
- /* Timer */
- PRR1 &= ~_BV(PRTIM3);
- OCR3A = F_CPU / 1000 - 1; /* Timer3: 1000Hz interval (OC3A) */
- TCCR3B = (0b01<<WGM32)|(0b001<<CS30); /* CTC Mode, Prescaler 1 */
- TIMSK3 = _BV(OCIE3A); /* Enable TC2.oca interrupt */
+ /* System timer */
+ setup_timer();
/* INT5, INT6: falling edge */
EICRB = (EICRB & ~((0b11 << ISC50) | (0b11 << ISC60))) |
}
-
-static void setup_fatfs(void)
-{
- static FATFS FatFs0;
- static FATFS FatFs1;
-
- f_mount(&FatFs0, "0:", 0);
- f_mount(&FatFs1, "1:", 0);
-}
-
/*--------------------------------------------------------------------------*/
/* Stored value of bootdelay, used by autoboot_command() */
debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);
_delay_ms(20);
- s = getenv(PSTR(ENV_BOOTCMD));
+ s = getenv_str(PSTR(ENV_BOOTCMD));
stored_bootdelay = bootdelay;
return s;
}
static
void autoboot_command(const char *s)
{
- debug("### main_loop: bootcmd=\"%s\"\n", s ? s : PSTR("<UNDEFINED>"));
+ debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "");
_delay_ms(20);
if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
{
extern void setup_mmc(void);
+ __malloc_margin = CONFIG_SYS_MALLOC_MARGIN;
+ setup_avr();
for (int i = 0; i < GPIO_MAX; i++)
gpio_config(i, INPUT_PULLUP);
- setup_avr();
setup_mmc();
- z80_setup_bus();
env_init();
+ z80_setup_bus();
if (reset_reason_is_power_on())
_delay_ms(CONFIG_PWRON_DELAY);
setup_system_time();
setup_fatfs();
- printf_P(PSTR("\nATMEGA1281+Z8S180 Stamp Monitor\n\n"));
+ printf_P(PSTR("\n" stringify(DEVICE_NAME) "+Z8S180 Stamp Monitor - Version: " VERSION " \n\n"));
setup_z180_serv();