replace hw access with system command on boot seq.

avr/usbload/Makefile

@@ -16,7 +16,7 @@
 #         Author:  Christian Starkjohann 
 # =====================================================================================
 
-DEBUG   = 0
+DEBUG   = 1
 TTY     = /dev/tty.PL2303-00002126
 DEVICE  = atmega644
 F_CPU   = 20000000

avr/usbload/command.c

@@ -31,6 +31,8 @@
 #include "usbdrv.h"
 #include "rle.h"
 #include "loader.h"
+#include "system.h"
+
 
 extern usb_transaction_t usb_trans;
 
@@ -93,13 +95,9 @@ void boot_startup_rom(uint16_t init_delay)
 {
     uint8_t i;
     uint32_t addr = 0x000000;
-    info_P(PSTR("Fetch loader rom\n"));
-    info_P(PSTR("Activate AVR bus\n"));
-    avr_bus_active();
-    info_P(PSTR("IRQ off\n"));
-    snes_irq_lo();
-    snes_irq_off();
-    snes_lorom();
+    system_set_bus_avr();
+    system_snes_irq_off();
+    system_set_rom_lorom();
     for (i=0; i<ROM_BUFFER_CNT; i++){
         addr += rle_decode(_rom[i], _rom_size[i], addr);
     }
@@ -112,14 +110,9 @@ void boot_startup_rom(uint16_t init_delay)
     info(PSTR("crc=%x\n"),crc);
 #endif
 
-    snes_irq_lo();
-    snes_irq_off();
-    snes_hirom();
-    snes_wr_disable();
-    
-    snes_bus_active();
-    info_P(PSTR("Activate SNES bus\n"));
-    send_reset();
+    system_set_rom_hirom();
+    system_set_bus_snes();
+    system_send_snes_reset();
     _delay_ms(init_delay);
 }
 

avr/usbload/loader.h

@@ -1,6 +1,6 @@
 /*
 File: qd16boot01.smc 
-Time: Sat, 17 Oct 2009 16:53:02
+Time: Sun, 18 Oct 2009 09:40:40
 */
 #ifndef __FIFO_H__
 #define __FIFO_H__

avr/usbload/main.c

@@ -245,6 +245,7 @@ void globals_init(){
 
 int main(void)
 {
+    
 #ifndef NO_DEBUG            
     uart_init();
     stdout = &uart_stdout;
@@ -260,7 +261,7 @@ int main(void)
     pwm_stop();
     usbInit();
     usb_connect();
-    
+    sei();
     while (1) {
         avr_bus_active();
         info_P(PSTR("Activate AVR bus\n"));

avr/usbload/system.c

@@ -86,6 +86,19 @@ void system_send_snes_irq()
     snes_irq_off();
 }
 
+void system_snes_irq_off()
+{    
+    snes_irq_off();
+    system.irq_line = IRQ_OFF;
+}
+
+void system_snes_irq_on()
+{    
+    snes_irq_on();
+    system.irq_line = IRQ_ON;
+}
+
+
 void system_set_bus_avr()
 {
     avr_bus_active();
@@ -104,8 +117,6 @@ void system_set_bus_snes()
     snes_bus_active();
     system.bus_mode = MODE_SNES;
     info_P(PSTR("Activate SNES bus\n"));
-    irq_stop();
-
 }
 
 void system_set_rom_mode(usb_transaction_t *usb_trans)
@@ -113,7 +124,7 @@ void system_set_rom_mode(usb_transaction_t *usb_trans)
     if (usb_trans->req_bank_size == 0x8000) {
         snes_lorom();
         system.rom_mode = LOROM;
-        info_P(PSTR("Set SNES lowrom \n"));
+        info_P(PSTR("Set SNES lorom \n"));
     } else {
         snes_hirom();
         system.rom_mode = HIROM;
@@ -121,3 +132,17 @@ void system_set_rom_mode(usb_transaction_t *usb_trans)
     }
 }
 
+void system_set_rom_lorom()
+{
+    snes_lorom();
+    system.rom_mode = LOROM;
+    info_P(PSTR("Set SNES lorom \n"));
+}
+
+
+void system_set_rom_hirom()
+{
+    snes_hirom();
+    system.rom_mode = HIROM;
+    info_P(PSTR("Set SNES hirom \n"));
+}

avr/usbload/system.h

@@ -23,6 +23,8 @@
 #ifndef __SYSTEM_H__
 #define __SYSTEM_H__
 
+#include "requests.h"
+
 
 
 typedef struct system_t {
@@ -38,6 +40,15 @@ typedef struct system_t {
 } system_t;
 
 void system_init(void);
+void system_init(void);
+void system_send_snes_reset(void);
+void system_send_snes_irq(void);
+void system_set_bus_avr(void);
+void system_set_bus_snes(void);
+void system_set_rom_mode(usb_transaction_t *usb_trans);
+void system_set_rom_hirom(void);
+void system_set_rom_lorom(void);
+void system_snes_irq_off(void);
 
 
 #endif

scripts/conv_rle.py

@@ -35,6 +35,7 @@ if huffman == True:
     os.unlink("/tmp/loader.rle")
     os.unlink("/tmp/loader.rle.hfm")
 
+
 cfile = open("/tmp/loader.c","w")
 hfile = open("/tmp/loader.h","w")
 
@@ -83,7 +84,6 @@ const char _rom%02i[ROM_BUFFER_SIZE%02i] PROGMEM = {
     l = addr     
     h = addr + parts[idx]
     addr+= parts[idx]
-    print l,h
     for idx,c in enumerate(data[l:h]):
         c = ord(c)
         if idx<len(data)-1: