-/*! \file goodfet.c\r
- \author Travis Goodspeed\r
- \brief Main module.\r
- \r
- This is the main module of the GoodFET, which calls the initialization\r
- routines and delegates commands to the various applications.\r
-*/\r
-\r
-\r
-#include "platform.h"\r
-#include "command.h"\r
-#include "apps.h"\r
-#include "glitch.h"\r
-\r
-\r
-//LED on P1.0\r
-//IO on P5\r
-\r
-//! Initialize registers and all that jazz.\r
-void init(){\r
- WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer\r
- \r
- //LED out and on.\r
- PLEDDIR |= PLEDPIN;\r
- PLEDOUT &= ~PLEDPIN;\r
- \r
- //Setup clocks, unique to each '430.\r
- msp430_init_dco();\r
- msp430_init_uart();\r
- \r
- //Enable Interrupts.\r
- //eint();\r
-}\r
-\r
-\r
-//! Handle a command.\r
-void handle(unsigned char app,\r
- unsigned char verb,\r
- unsigned long len){\r
- //debugstr("GoodFET");\r
- switch(app){\r
- case GLITCH:\r
- glitchhandle(app,verb,len);\r
- break;\r
- case MONITOR:\r
- monitorhandle(app,verb,len);\r
- break;\r
- case SPI:\r
- spihandle(app,verb,len);\r
- break;\r
- case AVR:\r
- avrhandle(app,verb,len);\r
- break;\r
- case I2CAPP:\r
- i2chandle(app,verb,len);\r
- break;\r
- case CHIPCON:\r
- cchandle(app,verb,len);\r
- break;\r
- case JTAG:\r
- jtaghandle(app,verb,len);\r
- break;\r
- case JTAG430: //Also JTAG430X, JTAG430X2\r
- jtag430x2handle(app,verb,len);\r
- break;\r
- default:\r
- if(pluginhandle){\r
- pluginhandle(app,verb,len);\r
- }else{\r
- debugstr("Plugin missing.");\r
- txdata(app,NOK,0);\r
- }\r
- \r
- break;\r
- }\r
-}\r
-\r
-//! Main loop.\r
-int main(void)\r
-{\r
- volatile unsigned int i;\r
- unsigned char app, verb;\r
- unsigned long len;\r
- \r
- init();\r
- glitchsetup();\r
- \r
- txstring(MONITOR,OK,"http://goodfet.sf.net/");\r
- \r
- \r
- //Command loop. There's no end!\r
- while(1){\r
- //Magic 3\r
- app=serial_rx();\r
- verb=serial_rx();\r
- //len=serial_rx();\r
- len=rxword();\r
- \r
- //Read data, looking for buffer overflow.y\r
- if(len<=CMDDATALEN){\r
- for(i=0;i<len;i++){\r
- cmddata[i]=serial_rx();\r
- }\r
- handle(app,verb,len);\r
- }else{\r
- //Listen to the blaberring.\r
- for(i-0;i<len;i++)\r
- serial_rx();\r
- //Reply with an error.\r
- debugstr("Buffer length exceeded.");\r
- txdata(MONITOR,NOK,0);\r
- }\r
- }\r
-}\r
-\r
+/*! \file goodfet.c
+ \author Travis Goodspeed
+ \brief Main module.
+
+ This is the main module of the GoodFET, which calls the initialization
+ routines and delegates commands to the various applications.
+*/
+
+
+#include "platform.h"
+#include "command.h"
+#include "apps.h"
+#include "glitch.h"
+
+#if (platform == tilaunchpad)
+#include <setjmp.h>
+jmp_buf warmstart;
+void coldstart();
+#include "msp430_serial.h"
+#endif
+
+#define RESET 0x80 // not a real app -- causes firmware to reset
+#define DEBUGAPP 0xFF
+
+//! General init function, calls platform-specific one.
+void init(){
+#ifdef MSP430
+ #define INITCHIP msp430_init();
+#endif
+
+#ifdef ARDUINO
+ #define INITCHIP arduino_init();
+#endif
+
+#ifdef INITCHIP
+INITCHIP
+#else
+#warning "No init() routine for this platform!"
+#endif
+
+#ifdef INITPLATFORM
+ INITPLATFORM
+#endif
+}
+
+
+
+//! Handle a command.
+void handle(uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len){
+ int i;
+
+ //debugstr("GoodFET");
+ led_off();
+
+ // find the app and call the handle fn
+ for(i = 0; i < num_apps; i++){
+ if(apps[i]->app == app){
+ // call the app's handle fn
+ (*(apps[i]->handle))(app, verb, len);
+
+ // exit early
+ return;
+ }
+ }
+
+ // if we get here, then the desired app is not copiled in
+ // this firmware
+ debugstr("App missing.");
+ debughex(app);
+ txdata(app, NOK, 0);
+}
+
+
+//! Main loop.
+int main(void)
+{
+ volatile unsigned int i;
+ unsigned char app, verb;
+ unsigned long len;
+ // MSP reboot count for reset input & reboot function located at 0xFFFE
+ volatile unsigned int reset_count = 0;
+#if (platform == tilaunchpad)
+ int ret=0;
+
+ //ret = setjmp(warmstart);// needs to be here since context from init() would be gone
+ warmstart:
+ if (ret == 0) {
+ coldstart(); // basic hardware setup, clock to TUSB3410, and enable
+ } else if (ret == 2) {
+ dputs("\nalmost BSL only one RTS change\n");
+ } else if (ret > 2) { // reset released after more than two tst transisitions
+ // We could write a BSL, a nice exercise for a Sunday afternoon.
+ dputs("\nBSL\n");
+ //call_BSL(); // once you are done uncomment ;-)
+ } else { // we come here after DTR high (release reset)
+ dputs("\nWarmstart\n");
+ }
+#else
+ void (*reboot_function)(void) = (void *) 0xFFFE;
+#endif
+ init();
+
+ txstring(MONITOR,OK,"http://goodfet.sf.net/");
+ #ifdef ECHOTEST
+ while(1) serial0_tx(serial0_rx());
+ #endif
+
+ //Command loop. There's no end!
+ while(1)
+ {
+ //Magic 3
+ app = serial_rx();
+
+ // If the app is the reset byte (0x80) increment and loop
+ if (app == RESET)
+ {
+ reset_count++;
+
+ if (reset_count > 4)
+ {
+ // We could trigger the WDT with either:
+ // WDTCTL = 0;
+ // or
+ // WDTCTL = WDTPW + WDTCNTCL + WDTSSEL + 0x00;
+ // but instead we'll jump to our reboot function pointer
+ #ifdef MSP430
+#if (platform == tilaunchpad)
+ // do we really need this, we do not want to reset the TUSB3410
+ dputs("reset_count>4\n");
+
+ //longjmp(warmstart,111);
+ goto warmstart;
+
+#else
+ (*reboot_function)();
+#endif
+ #else
+ debugstr("Rebooting not supported on this platform.");
+ #endif
+ }
+
+ continue;
+ }
+ else
+ {
+ reset_count = 0;
+ }
+
+ verb = serial_rx();
+ len = rxword();
+
+ //Read data, looking for buffer overflow.y
+ if(len <= CMDDATALEN)
+ {
+ for(i = 0; i < len; i++)
+ {
+ cmddata[i] = serial_rx();
+ }
+
+ handle(app,verb,len);
+ }
+ else
+ {
+ //Listen to the blaberring.
+ for(i = 0; i < len; i++)
+ serial_rx();
+
+ //Reply with an error.
+ debugstr("Buffer length exceeded.");
+ txdata(MONITOR,NOK,0);
+ }
+ }
+}
+
projects / goodfet / blobdiff