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add reset via usb and usb triggered avr/snes mode switching

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This commit is contained in:
David Voswinkel
2009-07-09 00:54:02 +02:00
parent d7b82e2503
commit 0f9ebb146e
7 changed files with 97 additions and 53 deletions
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118
avr/usbload/main.c
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@@ -16,6 +16,7 @@
#include "crc.h"
#include "usb_bulk.h"
#include "timer.h"
#include "watchdog.h"
extern FILE uart_stdout;
@@ -37,6 +38,9 @@ uint8_t data_buffer[4];
uint32_t addr;
uint16_t crc = 0;
usbMsgLen_t usbFunctionSetup(uchar data[8])
{
@@ -193,9 +197,23 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
/*
* -------------------------------------------------------------------------
*/
} else if (rq->bRequest == USB_SNES_BOOT) {
req_state = REQ_STATUS_BOOT;
debug(DEBUG_USB,"USB_SNES_BOOT:\n");
} else if (rq->bRequest == USB_MODE_SNES) {
req_state = REQ_STATUS_SNES;
debug(DEBUG_USB,"USB_MODE_SNES:\n");
ret_len = 0;
/*
* -------------------------------------------------------------------------
*/
} else if (rq->bRequest == USB_MODE_AVR) {
req_state = REQ_STATUS_AVR;
debug(DEBUG_USB,"USB_MODE_AVR:\n");
ret_len = 0;
/*
* -------------------------------------------------------------------------
*/
} else if (rq->bRequest == USB_AVR_RESET) {
debug(DEBUG_USB,"USB_AVR_RESET:\n");
soft_reset();
ret_len = 0;
/*
* -------------------------------------------------------------------------
@@ -305,9 +323,15 @@ int main(void)
uart_init();
stdout = &uart_stdout;
system_init();
printf("Sytem Init\n");
printf("Sytem start\n");
#if 0
wdt_init();
printf("Watchdog init\n");
#endif
#if 0
test_read_write();
@@ -317,7 +341,7 @@ int main(void)
#endif
usbInit();
printf("USB Init\n");
printf("USB init\n");
usbDeviceDisconnect(); /* enforce re-enumeration, do this while
* interrupts are disabled! */
cli();
@@ -328,58 +352,60 @@ int main(void)
_delay_ms(35);
led_off();
_delay_ms(65);
}
led_on();
usbDeviceConnect();
printf("USB connect\n");
avr_bus_active();
printf("Activate AVR bus\n");
printf("IRQ off\n");
snes_irq_lo();
snes_irq_off();
printf("Set Snes lowrom\n");
snes_lorom();
while (1){
avr_bus_active();
printf("Activate AVR bus\n");
printf("Disable snes WR\n");
snes_wr_disable();
sei();
printf("USB poll\n");
while (req_state != REQ_STATUS_BOOT){
usbPoll();
}
printf("USB poll done\n");
usbDeviceDisconnect();
printf("USB disconnect\n");
printf("IRQ off\n");
snes_irq_lo();
snes_irq_off();
#if 0
crc_check_bulk_memory(0x000000, req_addr_end, req_bank_size);
#endif
snes_irq_lo();
snes_irq_off();
printf("IRQ off\n");
if (req_bank_size == 0x8000){
printf("Set Snes lowrom\n");
snes_lorom();
printf("Set Snes lowrom \n");
} else {
snes_hirom();
printf("Set Snes hirom \n");
}
snes_wr_disable();
printf("Disable snes WR\n");
snes_bus_active();
printf("Activate Snes bus\n");
while(1);
printf("Disable snes WR\n");
snes_wr_disable();
sei();
printf("USB poll\n");
while (req_state != REQ_STATUS_SNES){
usbPoll();
}
printf("USB poll done\n");
#if 0
crc_check_bulk_memory(0x000000, req_addr_end, req_bank_size);
#endif
snes_irq_lo();
snes_irq_off();
printf("IRQ off\n");
if (req_bank_size == 0x8000){
snes_lorom();
printf("Set Snes lowrom \n");
} else {
snes_hirom();
printf("Set Snes hirom \n");
}
snes_wr_disable();
printf("Disable snes WR\n");
snes_bus_active();
printf("Activate Snes bus\n");
while (req_state != REQ_STATUS_AVR){
usbPoll();
}
}
return 0;
}