/**
* Initialize clock/timer module
*/
void clock_init() {
clock_reset();
// set timer 0 to prescaler 1:32
T0CON = 0x84;
}
static void
crash_enter (int seed)
{
clock_reset ();
lives_flag = 0;
add_event (1.2, print_lives_h, NULL);
add_event (2.0, leave_crash_mode, NULL);
print_buggy ();
if (lives <= 0) print_game_over (1);
}
void clock_init()
{
int i;
#ifdef THINK_C /* kludge for mac: see run_time */
long l;
l = run_time();
#endif
for (i=0; i<MAX_CLOCKS; i++)
clock_reset(i);
send_sato_message();
} /* clock_init */
void machine_reset()
{
/* Call machine-specific reset if available */
if (machine && machine->reset)
machine->reset(machine);
/* Reset CPUs, controllers, and clock system */
cpu_reset_all();
controller_reset_all();
clock_reset();
LOG_I("Machine reset.\n");
}
/**
This function is usually called by the signal handler to
indicate a clock tick to the clock.
The function interpretes the ticks, adjusting the
clock's seconds or minutes accordingly.
@params none
@return void
**/
void clock_tick(){
if(the_clock.is_paused) return;
if (++the_clock.ticks == 60){
//after 60 ticks, increment clock by a second
if (++the_clock.secs == 60){
//60 seconds = 1 minute
if (++the_clock.mins==99){
clock_reset(); //2 digit timer minute maximum
}
the_clock.secs = 0;
}
the_clock.ticks=0;
}
}
static void
game_enter (int seed)
{
clock_reset ();
if (seed == 0) {
level = 0;
score = 0;
lives = 3;
werase (status);
wnoutrefresh (status);
}
resize_ground (1);
level_start (level);
crash_detected = 0;
stakes = 0;
initialise_buggy ();
start_scrolling (1);
}
/**
* Parse given command line
*
* @param line Line string to parse
*/
void parseLine(char * line) {
unsigned char result = BELL;
switch (line[0]) {
case 'S': // Setup with standard CAN bitrates
if (state == STATE_CONFIG)
{
switch (line[1]) {
case '0': mcp2515_set_bittiming(MCP2515_TIMINGS_10K); result = CR; break;
case '1': mcp2515_set_bittiming(MCP2515_TIMINGS_20K); result = CR; break;
case '2': mcp2515_set_bittiming(MCP2515_TIMINGS_50K); result = CR; break;
case '3': mcp2515_set_bittiming(MCP2515_TIMINGS_100K); result = CR; break;
case '4': mcp2515_set_bittiming(MCP2515_TIMINGS_125K); result = CR; break;
case '5': mcp2515_set_bittiming(MCP2515_TIMINGS_250K); result = CR; break;
case '6': mcp2515_set_bittiming(MCP2515_TIMINGS_500K); result = CR; break;
case '7': mcp2515_set_bittiming(MCP2515_TIMINGS_800K); result = CR; break;
case '8': mcp2515_set_bittiming(MCP2515_TIMINGS_1M); result = CR; break;
}
}
break;
case 's': // Setup with user defined timing settings for CNF1/CNF2/CNF3
if (state == STATE_CONFIG)
{
unsigned long cnf1, cnf2, cnf3;
if (parseHex(&line[1], 2, &cnf1) && parseHex(&line[3], 2, &cnf2) && parseHex(&line[5], 2, &cnf3)) {
mcp2515_set_bittiming(cnf1, cnf2, cnf3);
result = CR;
}
}
break;
case 'G': // Read given MCP2515 register
{
unsigned long address;
if (parseHex(&line[1], 2, &address)) {
unsigned char value = mcp2515_read_register(address);
sendByteHex(value);
result = CR;
}
}
break;
case 'W': // Write given MCP2515 register
{
unsigned long address, data;
if (parseHex(&line[1], 2, &address) && parseHex(&line[3], 2, &data)) {
mcp2515_write_register(address, data);
result = CR;
}
}
break;
case 'V': // Get versions
{
usb_putch('V');
sendByteHex(VERSION_HARDWARE);
sendByteHex(VERSION_FIRMWARE_MAJOR);
result = CR;
}
break;
case 'v': // Get firmware version
{
usb_putch('v');
sendByteHex(VERSION_FIRMWARE_MAJOR);
sendByteHex(VERSION_FIRMWARE_MINOR);
result = CR;
}
break;
case 'N': // Get serial number
{
usb_putch('N');
sendHex(0xFFFF, 4);
result = CR;
}
break;
case 'O': // Open CAN channel
if (state == STATE_CONFIG)
{
mcp2515_bit_modify(MCP2515_REG_CANCTRL, 0xE0, 0x00); // set normal operating mode
clock_reset();
state = STATE_OPEN;
result = CR;
}
break;
case 'l': // Loop-back mode
if (state == STATE_CONFIG)
{
mcp2515_bit_modify(MCP2515_REG_CANCTRL, 0xE0, 0x40); // set loop-back
state = STATE_OPEN;
result = CR;
}
break;
case 'L': // Open CAN channel in listen-only mode
if (state == STATE_CONFIG)
{
mcp2515_bit_modify(MCP2515_REG_CANCTRL, 0xE0, 0x60); // set listen-only mode
state = STATE_LISTEN;
result = CR;
}
break;
case 'C': // Close CAN channel
if (state != STATE_CONFIG)
{
mcp2515_bit_modify(MCP2515_REG_CANCTRL, 0xE0, 0x80); // set configuration mode
state = STATE_CONFIG;
result = CR;
}
break;
case 'r': // Transmit standard RTR (11 bit) frame
case 'R': // Transmit extended RTR (29 bit) frame
case 't': // Transmit standard (11 bit) frame
case 'T': // Transmit extended (29 bit) frame
if (state == STATE_OPEN)
{
if (transmitStd(line)) {
if (line[0] < 'Z') usb_putch('Z');
else usb_putch('z');
result = CR;
}
}
break;
case 'F': // Read status flags
{
unsigned char flags = mcp2515_read_register(MCP2515_REG_EFLG);
unsigned char status = 0;
if (flags & 0x01) status |= 0x04; // error warning
if (flags & 0xC0) status |= 0x08; // data overrun
if (flags & 0x18) status |= 0x20; // passive error
if (flags & 0x20) status |= 0x80; // bus error
usb_putch('F');
sendByteHex(status);
result = CR;
}
break;
case 'Z': // Set time stamping
{
unsigned long stamping;
if (parseHex(&line[1], 1, &stamping)) {
timestamping = (stamping != 0);
result = CR;
}
}
break;
case 'm': // Set accpetance filter mask
if (state == STATE_CONFIG)
{
unsigned long am0, am1, am2, am3;
if (parseHex(&line[1], 2, &am0) && parseHex(&line[3], 2, &am1) && parseHex(&line[5], 2, &am2) && parseHex(&line[7], 2, &am3)) {
mcp2515_set_SJA1000_filter_mask(am0, am1, am2, am3);
result = CR;
}
}
break;
case 'M': // Set accpetance filter code
if (state == STATE_CONFIG)
{
unsigned long ac0, ac1, ac2, ac3;
if (parseHex(&line[1], 2, &ac0) && parseHex(&line[3], 2, &ac1) && parseHex(&line[5], 2, &ac2) && parseHex(&line[7], 2, &ac3)) {
mcp2515_set_SJA1000_filter_code(ac0, ac1, ac2, ac3);
result = CR;
}
}
break;
}
usb_putch(result);
}
FORCEINLINE void arp_resetCounter(int8_t beatReset)
{
arp.noteIndex=-1; // reinit
if (beatReset&&seq_getMode(0)!=smPlaying&&seq_getMode(1)!=smPlaying)
clock_reset(); // start immediately
}
void kernel_master_clock_start(void) {
// initialize master clock
clock_reset(&system_clock);
// do hardware timer magic
CPU_TIMER_START(PRESTO_KERNEL_MSPERTICK,(void (*)(void))timer_isr);
}
