#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
-//! Initialize registers and all that jazz.
+//! General init function, calls platform-specific one.
void init(){
- #ifdef DAC12IR
- int i;
- #endif
-
- WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
-
- //LED out and on.
- PLEDDIR |= PLEDPIN;
- PLEDOUT &= ~PLEDPIN;
-
-
- /* P5.0 out and low; this is chosen for the PIC app (in which P5.0
- is !MCLR) to ensure that an attached PIC chip, if present, is
- immediately driven to reset state. A brief explanation of why this
- is important follows.
-
- At least dsPIC33F and PIC24H --and very likely other 16-bit PIC
- families-- draw a large amount of current when running, especially
- when using a fast clock: from 60 mA up to approx. 90 mA. If the
- PIC target begins to run before the client can request a new ICSP
- session, which requires much less current (e.g., less than 2 mA),
- then the MSP430 chip on the GoodFET will fail to start and the FTDI
- may have trouble communicating with the client. The latter likely
- relates to the FTDI on-chip 3V3 regulator being specified up to
- only 50 mA. */
-
- P5DIR |= BIT0;
- //P5REN &= ~BIT0; //DO NOT UNCOMMENT. Breaks GF1x support.
- P5OUT &= ~BIT0;
-
- //Setup clocks, unique to each '430.
- msp430_init_dco();
- msp430_init_uart();
-
- //DAC should be at full voltage if it exists.
-#ifdef DAC12IR
- //glitchvoltages(0xfff,0xfff);
- ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on
- for(i=0;i!=0xFFFF;i++) asm("nop");
- DAC12_0CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
- DAC12_0DAT = 0xFFF; //Max voltage 0xfff
- DAC12_1CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
- DAC12_1DAT = 0x000; //Min voltage 0x000
+#ifdef MSP430
+ #define INITCHIP msp430_init();
+#endif
+
+#ifdef ARDUINO
+ #define INITCHIP arduino_init();
+#endif
+
+#if (platform == donbfet)
+# define INITCHIP donbfet_init();
+#endif
+
+#ifdef INITCHIP
+INITCHIP
+#else
+#warning "No init() routine for this platform!"
+#endif
+
+#ifdef INITPLATFORM
+ INITPLATFORM
#endif
-
- /** FIXME
-
- This part is really ugly. GSEL (P5.7) must be high to select
- normal voltage, but a lot of applications light to swing it low
- to be a nuissance. To get around this, we assume that anyone
- with a glitching FET will also have a DAC, then we set that DAC
- to a high voltage.
-
- At some point, each target must be sanitized to show that it
- doesn't clear P5OUT or P5DIR.
- */
- P5DIR|=BIT7; P5OUT=BIT7; //Normal Supply
- //P5DIR&=~BIT7; //Glitch Supply
-
- //Enable Interrupts.
- //eint();
}
+
//! Handle a command.
-void handle(unsigned char app,
- unsigned char verb,
- unsigned long len){
+void handle(uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len){
+ int i;
+
//debugstr("GoodFET");
- PLEDOUT&=~PLEDPIN;
- switch(app){
- case GLITCH:
- glitchhandle(app,verb,len);
- break;
- case MONITOR:
- monitorhandle(app,verb,len);
- break;
- case SPI:
- spihandle(app,verb,len);
- break;
- case NRF:
- nrfhandle(app,verb,len);
- break;
- case CCSPI:
- ccspihandle(app,verb,len);
- break;
- case AVR:
- avrhandle(app,verb,len);
- break;
- case PIC:
- pichandle(app,verb,len);
- break;
-
- case I2CAPP:
- i2chandle(app,verb,len);
- break;
- case CHIPCON:
- cchandle(app,verb,len);
- break;
- case JTAG:
- jtaghandle(app,verb,len);
- break;
- case EJTAG:
- ejtaghandle(app,verb,len);
- break;
- case JTAG430: //Also JTAG430X, JTAG430X2
- //Revert this when X2 support returns.
- jtag430x2handle(app,verb,len);
- //jtag430handle(app,verb,len);
- break;
- case SMARTCARD:
- smartcardhandle(app,verb,len);
- break;
- case JTAGARM7TDMI:
- jtagarm7tdmihandle(app,verb,len);
- break;
- default:
- if(pluginhandle){
- pluginhandle(app,verb,len);
- }else{
- debugstr("Plugin missing.");
- debughex(app);
- txdata(app,NOK,0);
+ //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;
}
- break;
}
+
+ // if we get here, then the desired app is not compiled into
+ // this firmware
+ debugstr("App missing.");
+ debughex(app);
+ txdata(app, NOK, 0);
}
+
//! Main loop.
-int main(void)
-{
+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;
+
+ silent=0; //Don't trust globals.
+
+#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");
+ }
+#endif
+
+#if (platform == donbfet)
+ extern void donbfet_reboot(void);
+ void (*reboot_function)(void) = donbfet_reboot;
+#elif (platform == zigduino)
+ extern void zigduino_reboot(void);
+ void (*reboot_function)(void) = zigduino_reboot;
+#else
void (*reboot_function)(void) = (void *) 0xFFFE;
+#endif
init();
txstring(MONITOR,OK,"http://goodfet.sf.net/");
+ //txstring(0xab,0xcd,"http://goodfet.sf.net/");
//Command loop. There's no end!
while(1){
//Magic 3
- app=serial_rx();
+ app = serial_rx();
// If the app is the reset byte (0x80) increment and loop
- if (app == RESET) {
+ if (app == RESET){
reset_count++;
-
- if (reset_count > 4) {
+
+ 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
(*reboot_function)();
+ debugstr("Rebooting not supported on this platform.");
}
-
+
continue;
- } else {
+ }else {
reset_count = 0;
}
-
- verb=serial_rx();
- //len=serial_rx();
- len=rxword();
-
- //Read data, looking for buffer overflow.y
- if(len<=CMDDATALEN){
- for(i=0;i<len;i++){
- cmddata[i]=serial_rx();
- }
+
+ verb = serial_rx();
+ len = rxword();
+
+ //Read data, looking for buffer overflow.
+ if(len <= CMDDATALEN){
+ for(i = 0; i < len; i++)
+ cmddata[i] = serial_rx();
+
handle(app,verb,len);
- }else{
+ }else {
//Listen to the blaberring.
- for(i=0;i<len;i++)
+ for(i = 0; i < len; i++)
serial_rx();
+
//Reply with an error.
debugstr("Buffer length exceeded.");
txdata(MONITOR,NOK,0);
projects / goodfet / blobdiff