static void
print_errinfo(const VALUE eclass, const VALUE errat, const VALUE emesg)
{
const char *einfo = "";
long elen = 0;
VALUE mesg;
if (emesg != Qundef) {
if (NIL_P(errat) || RARRAY_LEN(errat) == 0 ||
NIL_P(mesg = RARRAY_AREF(errat, 0))) {
error_pos();
}
else {
warn_print_str(mesg);
warn_print(": ");
}
if (!NIL_P(emesg)) {
einfo = RSTRING_PTR(emesg);
elen = RSTRING_LEN(emesg);
}
}
if (eclass == rb_eRuntimeError && elen == 0) {
warn_print("unhandled exception\n");
}
else {
VALUE epath;
epath = rb_class_name(eclass);
if (elen == 0) {
warn_print_str(epath);
warn_print("\n");
}
else {
const char *tail = 0;
long len = elen;
if (RSTRING_PTR(epath)[0] == '#')
epath = 0;
if ((tail = memchr(einfo, '\n', elen)) != 0) {
len = tail - einfo;
tail++; /* skip newline */
}
warn_print_str(tail ? rb_str_subseq(emesg, 0, len) : emesg);
if (epath) {
warn_print(" (");
warn_print_str(epath);
warn_print(")\n");
}
if (tail) {
warn_print_str(rb_str_subseq(emesg, tail - einfo, elen - len - 1));
}
if (tail ? einfo[elen-1] != '\n' : !epath) warn_print2("\n", 1);
}
}
}
// Sends a System Control code to the USB Output buffer
void Output_sysCtrlSend_capability( uint8_t state, uint8_t stateType, uint8_t *args )
{
// Display capability name
if ( stateType == 0xFF && state == 0xFF )
{
print("Output_sysCtrlSend(sysCode)");
return;
}
// Not implemented in Boot Mode
if ( USBKeys_Protocol == 0 )
{
warn_print("System Control is not implemented for Boot Mode");
return;
}
// TODO Analog inputs
// Only indicate USB has changed if either a press or release has occured
if ( state == 0x01 || state == 0x03 )
USBKeys_Changed |= USBKeyChangeState_System;
// Only send keypresses if press or hold state
if ( stateType == 0x00 && state == 0x03 ) // Release state
{
USBKeys_SysCtrl = 0;
return;
}
// Set system control code
USBKeys_SysCtrl = args[0];
}
// Setup
inline void Port_setup()
{
// Register Scan CLI dictionary
CLI_registerDictionary( portCLIDict, portCLIDictName );
#if Port_SwapMode_define == USBSwap
// USB Swap
// Start, disabled
GPIO_Ctrl( usb_swap_pin1, GPIO_Type_DriveSetup, GPIO_Config_None );
GPIO_Ctrl( usb_swap_pin1, GPIO_Type_DriveLow, GPIO_Config_None );
#elif Port_SwapMode_define == USBInterSwap
// USB Swap
// Start, disabled
GPIO_Ctrl( usb_swap_pin1, GPIO_Type_DriveSetup, GPIO_Config_None );
GPIO_Ctrl( usb_swap_pin1, GPIO_Type_DriveLow, GPIO_Config_None );
// UART Tx/Rx cross-over
// Start, disabled
GPIO_Ctrl( uart_cross_pin1, GPIO_Type_DriveSetup, GPIO_Config_None );
GPIO_Ctrl( uart_cross_pin1, GPIO_Type_DriveLow, GPIO_Config_None );
// UART Swap
// Start, disabled
GPIO_Ctrl( uart_swap_pin1, GPIO_Type_DriveSetup, GPIO_Config_None );
GPIO_Ctrl( uart_swap_pin1, GPIO_Type_DriveLow, GPIO_Config_None );
#else
warn_print("Unsupported");
#endif
// Starting point for automatic port swapping
Port_lastcheck_ms = systick_millis_count;
// Allocate latency measurement resource
portLatencyResource = Latency_add_resource("PortSwap", LatencyOption_Ticks);
}
void Port_uart_swap()
{
#if Port_SwapMode_define == USBInterSwap
info_print("Interconnect Line Swap");
// UART Swap
GPIO_Ctrl( uart_swap_pin1, GPIO_Type_DriveToggle, GPIO_Config_None );
#else
warn_print("Unsupported");
#endif
}
/* rb_warning() reports only in verbose mode */
void
rb_warning(const char *fmt, ...)
{
va_list args;
if (!RTEST(ruby_verbose)) return;
va_start(args, fmt);
warn_print(fmt, args);
va_end(args);
}
/* rb_warning() reports only in verbose mode */
void
rb_warning(const char *fmt, ...)
{
char buf[BUFSIZ];
va_list args;
if (!RTEST(ruby_verbose)) return;
snprintf(buf, BUFSIZ, "warning: %s", fmt);
va_start(args, fmt);
warn_print(buf, args);
va_end(args);
}
void Port_cross()
{
#if Port_SwapMode_define == USBInterSwap
info_print("Interconnect Line Cross");
// UART Tx/Rx cross-over
GPIO_Ctrl( uart_cross_pin1, GPIO_Type_DriveToggle, GPIO_Config_None );
// Reset interconnects
Connect_reset();
#else
warn_print("Unsupported");
#endif
}
void Port_usb_swap()
{
#if Port_SwapMode_define == USBSwap || Port_SwapMode_define == USBInterSwap
info_print("USB Port Swap");
// USB Swap
GPIO_Ctrl( usb_swap_pin1, GPIO_Type_DriveToggle, GPIO_Config_None );
// Re-initialize usb
// Call usb_configured() to check if usb is ready
usb_reinit();
#else
warn_print("Unsupported");
#endif
}
void
rb_sys_warning(const char *fmt, ...)
{
char buf[BUFSIZ];
va_list args;
int errno_save;
errno_save = errno;
if (!RTEST(ruby_verbose)) return;
snprintf(buf, BUFSIZ, "warning: %s", fmt);
snprintf(buf+strlen(buf), BUFSIZ-strlen(buf), ": %s", strerror(errno_save));
va_start(args, fmt);
warn_print(buf, args);
va_end(args);
errno = errno_save;
}
void
rb_threadptr_error_print(rb_thread_t *volatile th, volatile VALUE errinfo)
{
volatile VALUE errat = Qundef;
volatile int raised_flag = th->raised_flag;
volatile VALUE eclass = Qundef, emesg = Qundef;
if (NIL_P(errinfo))
return;
rb_thread_raised_clear(th);
TH_PUSH_TAG(th);
if (TH_EXEC_TAG() == 0) {
errat = rb_get_backtrace(errinfo);
}
else if (errat == Qundef) {
errat = Qnil;
}
else if (eclass == Qundef || emesg != Qundef) {
goto error;
}
if ((eclass = CLASS_OF(errinfo)) != Qundef) {
VALUE e = rb_check_funcall(errinfo, rb_intern("message"), 0, 0);
if (e != Qundef) {
if (!RB_TYPE_P(e, T_STRING)) e = rb_check_string_type(e);
emesg = e;
}
}
if (rb_stderr_tty_p()) {
if (0) warn_print("Traceback (most recent call last):\n");
print_backtrace(eclass, errat, TRUE);
print_errinfo(eclass, errat, emesg);
}
else {
print_errinfo(eclass, errat, emesg);
print_backtrace(eclass, errat, FALSE);
}
error:
TH_POP_TAG();
th->errinfo = errinfo;
rb_thread_raised_set(th, raised_flag);
}
uint8_t Connect_receive_CableCheck( uint8_t byte, uint16_t *pending_bytes, uint8_t uart_num )
{
// Check if this is the first byte
if ( *pending_bytes == 0xFFFF )
{
*pending_bytes = byte;
if ( Connect_debug )
{
dbug_msg("PENDING SET -> ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
}
// Verify byte
else
{
(*pending_bytes)--;
// The argument bytes are always 0xD2 (11010010)
if ( byte != 0xD2 )
{
warn_print("Cable Fault!");
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableFaultsSlave++;
Connect_cableOkSlave = 0;
print(" Slave ");
}
else
{
Connect_cableFaultsMaster++;
Connect_cableOkMaster = 0;
print(" Master ");
}
printHex( byte );
print( NL );
// Signal that the command should wait for a SYN again
return 1;
}
else
{
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableChecksSlave++;
}
else
{
Connect_cableChecksMaster++;
}
}
}
// If cable check was successful, set cable ok
if ( *pending_bytes == 0 )
{
if ( uart_num == UART_Slave )
{
Connect_cableOkSlave = 1;
}
else
{
Connect_cableOkMaster = 1;
}
}
if ( Connect_debug )
{
dbug_msg("CABLECHECK RECEIVE - ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
// Check whether the cable check has finished
return *pending_bytes == 0 ? 1 : 0;
}
// send the contents of keyboard_keys and keyboard_modifier_keys
void usb_keyboard_send()
{
uint32_t wait_count = 0;
usb_packet_t *tx_packet;
// Wait till ready
while ( 1 )
{
if ( !usb_configuration )
{
erro_print("USB not configured...");
return;
}
if ( USBKeys_Protocol == 0 ) // Boot Mode
{
if ( usb_tx_packet_count( NKRO_KEYBOARD_ENDPOINT ) < TX_PACKET_LIMIT )
{
tx_packet = usb_malloc();
if ( tx_packet )
break;
}
}
else if ( USBKeys_Protocol == 1 ) // NKRO Mode
{
if ( usb_tx_packet_count( KEYBOARD_ENDPOINT ) < TX_PACKET_LIMIT )
{
tx_packet = usb_malloc();
if ( tx_packet )
break;
}
}
if ( ++wait_count > TX_TIMEOUT || transmit_previous_timeout )
{
transmit_previous_timeout = 1;
warn_print("USB Transmit Timeout...");
return;
}
yield();
}
// Pointer to USB tx packet buffer
uint8_t *tx_buf = tx_packet->buf;
switch ( USBKeys_Protocol )
{
// Send boot keyboard interrupt packet(s)
case 0:
// USB Boot Mode debug output
if ( Output_DebugMode )
{
dbug_msg("Boot USB: ");
printHex_op( USBKeys_Modifiers, 2 );
print(" ");
printHex( 0 );
print(" ");
printHex_op( USBKeys_Keys[0], 2 );
printHex_op( USBKeys_Keys[1], 2 );
printHex_op( USBKeys_Keys[2], 2 );
printHex_op( USBKeys_Keys[3], 2 );
printHex_op( USBKeys_Keys[4], 2 );
printHex_op( USBKeys_Keys[5], 2 );
print( NL );
}
// Boot Mode
*tx_buf++ = USBKeys_Modifiers;
*tx_buf++ = 0;
memcpy( tx_buf, USBKeys_Keys, USB_BOOT_MAX_KEYS );
tx_packet->len = 8;
// Send USB Packet
usb_tx( KEYBOARD_ENDPOINT, tx_packet );
USBKeys_Changed = USBKeyChangeState_None;
break;
// Send NKRO keyboard interrupts packet(s)
case 1:
if ( Output_DebugMode )
{
dbug_msg("NKRO USB: ");
}
// Check system control keys
if ( USBKeys_Changed & USBKeyChangeState_System )
{
if ( Output_DebugMode )
{
print("SysCtrl[");
printHex_op( USBKeys_SysCtrl, 2 );
print( "] " NL );
}
*tx_buf++ = 0x02; // ID
*tx_buf = USBKeys_SysCtrl;
tx_packet->len = 2;
// Send USB Packet
usb_tx( NKRO_KEYBOARD_ENDPOINT, tx_packet );
USBKeys_Changed &= ~USBKeyChangeState_System; // Mark sent
}
// Check consumer control keys
if ( USBKeys_Changed & USBKeyChangeState_Consumer )
{
if ( Output_DebugMode )
{
print("ConsCtrl[");
printHex_op( USBKeys_ConsCtrl, 2 );
print( "] " NL );
}
*tx_buf++ = 0x03; // ID
*tx_buf++ = (uint8_t)(USBKeys_ConsCtrl & 0x00FF);
*tx_buf = (uint8_t)(USBKeys_ConsCtrl >> 8);
tx_packet->len = 3;
// Send USB Packet
usb_tx( NKRO_KEYBOARD_ENDPOINT, tx_packet );
USBKeys_Changed &= ~USBKeyChangeState_Consumer; // Mark sent
}
// Standard HID Keyboard
if ( USBKeys_Changed )
{
// USB NKRO Debug output
if ( Output_DebugMode )
{
printHex_op( USBKeys_Modifiers, 2 );
print(" ");
for ( uint8_t c = 0; c < 6; c++ )
printHex_op( USBKeys_Keys[ c ], 2 );
print(" ");
for ( uint8_t c = 6; c < 20; c++ )
printHex_op( USBKeys_Keys[ c ], 2 );
print(" ");
printHex_op( USBKeys_Keys[20], 2 );
print(" ");
for ( uint8_t c = 21; c < 27; c++ )
printHex_op( USBKeys_Keys[ c ], 2 );
print( NL );
}
tx_packet->len = 0;
// Modifiers
*tx_buf++ = 0x01; // ID
*tx_buf++ = USBKeys_Modifiers;
tx_packet->len += 2;
// 4-49 (first 6 bytes)
memcpy( tx_buf, USBKeys_Keys, 6 );
tx_buf += 6;
tx_packet->len += 6;
// 51-155 (Middle 14 bytes)
memcpy( tx_buf, USBKeys_Keys + 6, 14 );
tx_buf += 14;
tx_packet->len += 14;
// 157-164 (Next byte)
memcpy( tx_buf, USBKeys_Keys + 20, 1 );
tx_buf += 1;
tx_packet->len += 1;
// 176-221 (last 6 bytes)
memcpy( tx_buf, USBKeys_Keys + 21, 6 );
tx_packet->len += 6;
// Send USB Packet
usb_tx( NKRO_KEYBOARD_ENDPOINT, tx_packet );
USBKeys_Changed = USBKeyChangeState_None; // Mark sent
}
break;
}
return;
}
// Adds a single USB Code to the USB Output buffer
// Argument #1: USB Code
void Output_usbCodeSend_capability( TriggerMacro *trigger, uint8_t state, uint8_t stateType, uint8_t *args )
{
#if enableKeyboard_define == 1
// Display capability name
if ( stateType == 0xFF && state == 0xFF )
{
print("Output_usbCodeSend(usbCode)");
return;
}
// Depending on which mode the keyboard is in the USB needs Press/Hold/Release events
uint8_t keyPress = 0; // Default to key release
// Only send press and release events
if ( stateType == 0x00 && state == 0x02 ) // Hold state
return;
// If press, send bit (NKRO) or byte (6KRO)
if ( stateType == 0x00 && state == 0x01 ) // Press state
keyPress = 1;
// Get the keycode from arguments
uint8_t key = args[0];
// Depending on which mode the keyboard is in, USBKeys_Keys array is used differently
// Boot mode - Maximum of 6 byte codes
// NKRO mode - Each bit of the 26 byte corresponds to a key
// Bits 0 - 45 (bytes 0 - 5) correspond to USB Codes 4 - 49 (Main)
// Bits 48 - 161 (bytes 6 - 20) correspond to USB Codes 51 - 164 (Secondary)
// Bits 168 - 213 (bytes 21 - 26) correspond to USB Codes 176 - 221 (Tertiary)
// Bits 214 - 216 unused
uint8_t bytePosition = 0;
uint8_t byteShift = 0;
switch ( USBKeys_Protocol )
{
case 0: // Boot Mode
// Set the modifier bit if this key is a modifier
if ( (key & 0xE0) == 0xE0 ) // AND with 0xE0 (Left Ctrl, first modifier)
{
if ( keyPress )
{
USBKeys_primary.modifiers |= 1 << (key ^ 0xE0); // Left shift 1 by key XOR 0xE0
}
else // Release
{
USBKeys_primary.modifiers &= ~(1 << (key ^ 0xE0)); // Left shift 1 by key XOR 0xE0
}
USBKeys_primary.changed |= USBKeyChangeState_Modifiers;
}
// Normal USB Code
else
{
// Determine if key was set
uint8_t keyFound = 0;
uint8_t old_sent = USBKeys_Sent;
for ( uint8_t curkey = 0, newkey = 0; curkey < old_sent; curkey++, newkey++ )
{
// On press, key already present, don't re-add
if ( keyPress && USBKeys_primary.keys[newkey] == key )
{
keyFound = 1;
break;
}
// On release, remove if found
if ( !keyPress && USBKeys_primary.keys[newkey] == key )
{
// Shift next key onto this one
// (Doesn't matter if it overflows, buffer is large enough, and size is used)
USBKeys_primary.keys[newkey--] = USBKeys_primary.keys[++curkey];
USBKeys_Sent--;
keyFound = 1;
USBKeys_primary.changed = USBKeyChangeState_MainKeys;
break;
}
}
// USB Key limit reached
if ( USBKeys_Sent >= USB_BOOT_MAX_KEYS )
{
warn_print("USB Key limit reached");
break;
}
// Add key if not already found in the buffer
if ( keyPress && !keyFound )
{
USBKeys_primary.keys[USBKeys_Sent++] = key;
USBKeys_primary.changed = USBKeyChangeState_MainKeys;
}
}
break;
case 1: // NKRO Mode
// Set the modifier bit if this key is a modifier
if ( (key & 0xE0) == 0xE0 ) // AND with 0xE0 (Left Ctrl, first modifier)
{
if ( keyPress )
{
USBKeys_primary.modifiers |= 1 << (key ^ 0xE0); // Left shift 1 by key XOR 0xE0
}
else // Release
{
USBKeys_primary.modifiers &= ~(1 << (key ^ 0xE0)); // Left shift 1 by key XOR 0xE0
}
USBKeys_primary.changed |= USBKeyChangeState_Modifiers;
break;
}
// First 6 bytes
else if ( key >= 4 && key <= 49 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
// Starting at 0th position, each byte has 8 bits, starting at 4th bit
uint8_t keyPos = key + (0 * 8 - 4); // Starting position in array, Ignoring 4 keys
switch ( keyPos )
{
byteLookup( 0 );
byteLookup( 1 );
byteLookup( 2 );
byteLookup( 3 );
byteLookup( 4 );
byteLookup( 5 );
}
USBKeys_primary.changed |= USBKeyChangeState_MainKeys;
}
// Next 14 bytes
else if ( key >= 51 && key <= 155 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
// Starting at 6th byte position, each byte has 8 bits, starting at 51st bit
uint8_t keyPos = key + (6 * 8 - 51); // Starting position in array
switch ( keyPos )
{
byteLookup( 6 );
byteLookup( 7 );
byteLookup( 8 );
byteLookup( 9 );
byteLookup( 10 );
byteLookup( 11 );
byteLookup( 12 );
byteLookup( 13 );
byteLookup( 14 );
byteLookup( 15 );
byteLookup( 16 );
byteLookup( 17 );
byteLookup( 18 );
byteLookup( 19 );
}
USBKeys_primary.changed |= USBKeyChangeState_SecondaryKeys;
}
// Next byte
else if ( key >= 157 && key <= 164 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
uint8_t keyPos = key + (20 * 8 - 157); // Starting position in array, Ignoring 6 keys
switch ( keyPos )
{
byteLookup( 20 );
}
USBKeys_primary.changed |= USBKeyChangeState_TertiaryKeys;
}
// Last 6 bytes
else if ( key >= 176 && key <= 221 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
uint8_t keyPos = key + (21 * 8 - 176); // Starting position in array
switch ( keyPos )
{
byteLookup( 21 );
byteLookup( 22 );
byteLookup( 23 );
byteLookup( 24 );
byteLookup( 25 );
byteLookup( 26 );
}
USBKeys_primary.changed |= USBKeyChangeState_QuartiaryKeys;
}
// Received 0x00
// This is a special USB Code that internally indicates a "break"
// It is used to send "nothing" in order to break up sequences of USB Codes
else if ( key == 0x00 )
{
USBKeys_primary.changed |= USBKeyChangeState_MainKeys;
// Also flush out buffers just in case
Output_flushBuffers();
break;
}
// Invalid key
else
{
warn_msg("USB Code not within 4-49 (0x4-0x31), 51-155 (0x33-0x9B), 157-164 (0x9D-0xA4), 176-221 (0xB0-0xDD) or 224-231 (0xE0-0xE7) NKRO Mode: ");
printHex( key );
print( NL );
break;
}
// Set/Unset
if ( keyPress )
{
USBKeys_primary.keys[bytePosition] |= (1 << byteShift);
USBKeys_Sent--;
}
else // Release
{
USBKeys_primary.keys[bytePosition] &= ~(1 << byteShift);
USBKeys_Sent++;
}
break;
}
#endif
}
uint8_t Connect_receive_CableCheck( uint8_t byte, uint16_t *pending_bytes, uint8_t uart_num )
{
// Check if this is the first byte
if ( *pending_bytes == BYTE_COUNT_START )
{
*pending_bytes = byte;
if ( Connect_debug )
{
dbug_msg("PENDING SET -> ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
}
// Verify byte
else
{
(*pending_bytes)--;
// The argument bytes are always 0xD2 (11010010)
if ( byte != CABLE_CHECK_ARG )
{
warn_print("Cable Fault!");
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableFaultsSlave++;
Connect_cableOkSlave = 0;
print(" Slave ");
}
else
{
// Lower current requirement during errors
// Half of USB negotiation minimum (50 mA)
// Only if this is not the master node
if ( Connect_id != 0 )
{
Output_update_external_current( 50 );
}
Connect_cableFaultsMaster++;
Connect_cableOkMaster = 0;
print(" Master ");
}
printHex( byte );
print( NL );
// Signal that the command should wait for a SYN again
return 1;
}
else
{
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableChecksSlave++;
}
else
{
// If we already have an Id, then set max current again
if ( Connect_id != 255 && Connect_id != 0 )
{
Output_update_external_current( Output_current_available() );
}
Connect_cableChecksMaster++;
}
}
}
// If cable check was successful, set cable ok
if ( *pending_bytes == 0 )
{
if ( uart_num == UART_Slave )
{
Connect_cableOkSlave = 1;
}
else
{
Connect_cableOkMaster = 1;
}
}
if ( Connect_debug )
{
dbug_msg("CABLECHECK RECEIVE - ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
// Check whether the cable check has finished
return *pending_bytes == 0 ? 1 : 0;
}
void i2c_isr( uint8_t ch )
{
volatile I2C_Channel* channel = &i2c_channels[ch - ISSI_I2C_FirstBus_define];
#if defined(_kinetis_)
volatile uint8_t *I2C_C1 = (uint8_t*)(&I2C0_C1) + i2c_offset[ch];
volatile uint8_t *I2C_S = (uint8_t*)(&I2C0_S) + i2c_offset[ch];
volatile uint8_t *I2C_D = (uint8_t*)(&I2C0_D) + i2c_offset[ch];
#elif defined(_sam_)
Twi *twi_dev = twi_devs[ch];
#endif
uint16_t element;
uint8_t status;
#if defined(_kinetis_)
status = *I2C_S;
// Acknowledge the interrupt request
*I2C_S |= I2C_S_IICIF;
// Arbitration problem
if ( status & I2C_S_ARBL )
{
/* XXX (HaaTa) I2C Debugging
warn_msg("Arbitration error. Bus: ");
printHex( ch );
print(NL);
*/
*I2C_S |= I2C_S_ARBL;
goto i2c_isr_error;
}
#elif defined(_sam_)
status = twi_dev->TWI_SR;
// Arbitration problem
if ( status & TWI_SR_ARBLST )
{
warn_msg("Arbitration error. Bus: ");
printHex( ch );
print(NL);
goto i2c_isr_error;
}
#endif
if ( channel->txrx == I2C_READING )
{
switch( channel->reads_ahead )
{
// All the reads in the sequence have been processed ( but note that the final data register read still needs to
// be done below! Now, the next thing is either a restart or the end of a sequence.
case 0:
#if defined(_kinetis_)
// In any case, we need to switch to TX mode, either to generate a repeated start condition, or to avoid
// triggering another I2C read when reading the contents of the data register.
*I2C_C1 |= I2C_C1_TX;
// Perform the final data register read now that it's safe to do so.
*channel->received_data++ = *I2C_D;
// Do we have a repeated start?
if ( ( channel->sequence < channel->sequence_end ) && ( *channel->sequence == I2C_RESTART ) )
{
// Generate a repeated start condition.
*I2C_C1 |= I2C_C1_RSTA;
// A restart is processed immediately, so we need to get a new element from our sequence. This is safe, because
// a sequence cannot end with a RESTART: there has to be something after it. Note that the only thing that can
// come after a restart is an address write.
channel->txrx = I2C_WRITING;
channel->sequence++;
element = *channel->sequence;
*I2C_D = element;
}
else
{
goto i2c_isr_stop;
}
#elif defined(_sam_)
// Perform the final data register read now that it's safe to do so.
*channel->received_data++ = twi_dev->TWI_RHR;
// Do we have a repeated start?
if ( ( channel->sequence < channel->sequence_end ) && ( *channel->sequence == I2C_RESTART ) )
{
// Generate a repeated start condition.
twi_dev->TWI_MMR &= ~TWI_MMR_MREAD;
twi_dev->TWI_CR |= TWI_CR_START;
// A restart is processed immediately, so we need to get a new element from our sequence. This is safe, because
// a sequence cannot end with a RESTART: there has to be something after it. Note that the only thing that can
// come after a restart is an address write.
channel->txrx = I2C_WRITING;
channel->sequence++;
element = *channel->sequence;
twi_dev->TWI_THR = element;
}
else
{
goto i2c_isr_stop;
}
#endif
break;
case 1:
#if defined(_kinetis_)
// do not ACK the final read
*I2C_C1 |= I2C_C1_TXAK;
*channel->received_data++ = *I2C_D;
#elif defined(_sam_)
twi_dev->TWI_CR |= TWI_CR_STOP; //No ACK
*channel->received_data++ = twi_dev->TWI_RHR;
#endif
break;
default:
#if defined(_kinetis_)
*channel->received_data++ = *I2C_D;
#elif defined(_sam_)
*channel->received_data++ = twi_dev->TWI_RHR;
#endif
break;
}
//print("Read: ");
//printHex( *channel->received_data );
//print( NL );
channel->reads_ahead--;
}
// channel->txrx == I2C_WRITING
else
{
// First, check if we are at the end of a sequence.
if ( channel->sequence == channel->sequence_end )
goto i2c_isr_stop;
// We received a NACK. Generate a STOP condition and abort.
#if defined(_kinetis_)
if ( status & I2C_S_RXAK )
{
warn_print("NACK Received");
goto i2c_isr_error;
}
#elif defined(_sam_)
if ( status & TWI_SR_NACK )
{
warn_print("NACK Received");
goto i2c_isr_error;
}
#endif
// check next thing in our sequence
element = *channel->sequence;
// Do we have a restart? If so, generate repeated start and make sure TX is on.
if ( element == I2C_RESTART )
{
#if defined(_kinetis_)
*I2C_C1 |= I2C_C1_RSTA | I2C_C1_TX;
#elif defined(_sam_)
twi_dev->TWI_MMR &= ~TWI_MMR_MREAD;
twi_dev->TWI_CR |= TWI_CR_START;
#endif
// A restart is processed immediately, so we need to get a new element from our sequence.
// This is safe, because a sequence cannot end with a RESTART: there has to be something after it.
channel->sequence++;
element = *channel->sequence;
// Note that the only thing that can come after a restart is a write.
#if defined(_kinetis_)
*I2C_D = element;
#elif defined(_sam_)
twi_dev->TWI_THR = element;
#endif
}
else
{
if ( element == I2C_READ ) {
channel->txrx = I2C_READING;
// How many reads do we have ahead of us ( not including this one )?
// For reads we need to know the segment length to correctly plan NACK transmissions.
// We already know about one read
channel->reads_ahead = 1;
while (
( ( channel->sequence + channel->reads_ahead ) < channel->sequence_end ) &&
( *( channel->sequence + channel->reads_ahead ) == I2C_READ )
) {
channel->reads_ahead++;
}
// Switch to RX mode.
#if defined(_kinetis_)
*I2C_C1 &= ~I2C_C1_TX;
#elif defined(_sam_)
twi_dev->TWI_MMR |= TWI_MMR_MREAD;
#endif
// do not ACK the final read
if ( channel->reads_ahead == 1 )
{
#if defined(_kinetis_)
*I2C_C1 |= I2C_C1_TXAK;
#elif defined(_sam_)
twi_dev->TWI_CR |= TWI_CR_STOP;
#endif
}
// ACK all but the final read
else
{
#if defined(_kinetis_)
*I2C_C1 &= ~( I2C_C1_TXAK );
#endif
}
// Dummy read comes first, note that this is not valid data!
// This only triggers a read, actual data will come in the next interrupt call and overwrite this.
// This is why we do not increment the received_data pointer.
#if defined(_kinetis_)
*channel->received_data = *I2C_D;
#elif defined(_sam_)
*channel->received_data = twi_dev->TWI_RHR;
#endif
channel->reads_ahead--;
}
// Not a restart, not a read, must be a write.
else
{
//print("WRITE: ");
//printHex(element);
#if defined(_kinetis_)
*I2C_D = element;
#elif defined(_sam_)
// while (! (status & TWI_SR_TXRDY));
if (!(status & TWI_SR_TXRDY)) return;
twi_dev->TWI_THR = element;
#endif
//print( NL );
}
}
}
channel->sequence++;
channel->last_error = 0; // No error
return;
i2c_isr_stop:
// Generate STOP ( set MST=0 ), switch to RX mode, and disable further interrupts.
#if defined(_kinetis_)
*I2C_C1 &= ~( I2C_C1_MST | I2C_C1_IICIE | I2C_C1_TXAK );
#elif defined(_sam_)
//print("\r\n ----- STOP ----- \r\n");
twi_dev->TWI_CR |= TWI_CR_STOP;
twi_dev->TWI_MMR &= ~TWI_MMR_MREAD;
twi_dev->TWI_IDR = 0xFFFFFFFF;
#endif
channel->status = I2C_AVAILABLE;
// Call the user-supplied callback function upon successful completion (if it exists).
if ( channel->callback_fn )
{
// Delay before starting linked function
#if ISSI_Chip_31FL3731_define == 1 || ISSI_Chip_31FL3732_define == 1
delay_us(25);
#elif ISSI_Chip_31FL3733_define == 1 || ISSI_Chip_31FL3736_define == 1
delay_us(10);
#endif
( *channel->callback_fn )( channel->user_data );
}
return;
i2c_isr_error:
// Record error, and reset last error counter
channel->error_count++;
channel->last_error++;
// Generate STOP and disable further interrupts.
warn_print("ISR error");
#if defined(_kinetis_)
*I2C_C1 &= ~( I2C_C1_MST | I2C_C1_IICIE );
#elif defined(_sam_)
twi_dev->TWI_CR |= TWI_CR_STOP;
twi_dev->TWI_IDR = 0xFFFFFFFF;
#endif
channel->status = I2C_ERROR;
return;
}
static int
error_handle(int ex)
{
int status = EXIT_FAILURE;
rb_thread_t *th = GET_THREAD();
if (rb_threadptr_set_raised(th))
return EXIT_FAILURE;
switch (ex & TAG_MASK) {
case 0:
status = EXIT_SUCCESS;
break;
case TAG_RETURN:
error_pos();
warn_print("unexpected return\n");
break;
case TAG_NEXT:
error_pos();
warn_print("unexpected next\n");
break;
case TAG_BREAK:
error_pos();
warn_print("unexpected break\n");
break;
case TAG_REDO:
error_pos();
warn_print("unexpected redo\n");
break;
case TAG_RETRY:
error_pos();
warn_print("retry outside of rescue clause\n");
break;
case TAG_THROW:
/* TODO: fix me */
error_pos();
warn_print("unexpected throw\n");
break;
case TAG_RAISE: {
VALUE errinfo = th->errinfo;
if (rb_obj_is_kind_of(errinfo, rb_eSystemExit)) {
status = sysexit_status(errinfo);
}
else if (rb_obj_is_instance_of(errinfo, rb_eSignal) &&
rb_ivar_get(errinfo, id_signo) != INT2FIX(SIGSEGV)) {
/* no message when exiting by signal */
}
else {
error_print(th);
}
break;
}
case TAG_FATAL:
error_print(th);
break;
default:
unknown_longjmp_status(ex);
break;
}
rb_threadptr_reset_raised(th);
return status;
}
static void
error_print(void)
{
volatile VALUE errat = Qnil; /* OK */
VALUE errinfo = GET_THREAD()->errinfo;
volatile VALUE eclass, e;
const char *volatile einfo;
volatile long elen;
if (NIL_P(errinfo))
return;
PUSH_TAG();
if (EXEC_TAG() == 0) {
errat = get_backtrace(errinfo);
}
else {
errat = Qnil;
}
if (EXEC_TAG())
goto error;
if (NIL_P(errat)) {
const char *file = rb_sourcefile();
int line = rb_sourceline();
if (!file)
warn_printf("%d", line);
else if (!line)
warn_printf("%s", file);
else
warn_printf("%s:%d", file, line);
}
else if (RARRAY_LEN(errat) == 0) {
error_pos();
}
else {
VALUE mesg = RARRAY_PTR(errat)[0];
if (NIL_P(mesg))
error_pos();
else {
warn_print2(RSTRING_PTR(mesg), RSTRING_LEN(mesg));
}
}
eclass = CLASS_OF(errinfo);
if (EXEC_TAG() == 0) {
e = rb_funcall(errinfo, rb_intern("message"), 0, 0);
StringValue(e);
einfo = RSTRING_PTR(e);
elen = RSTRING_LEN(e);
}
else {
einfo = "";
elen = 0;
}
if (EXEC_TAG())
goto error;
if (eclass == rb_eRuntimeError && elen == 0) {
warn_print(": unhandled exception\n");
}
else {
VALUE epath;
epath = rb_class_name(eclass);
if (elen == 0) {
warn_print(": ");
warn_print2(RSTRING_PTR(epath), RSTRING_LEN(epath));
warn_print("\n");
}
else {
char *tail = 0;
long len = elen;
if (RSTRING_PTR(epath)[0] == '#')
epath = 0;
if ((tail = memchr(einfo, '\n', elen)) != 0) {
len = tail - einfo;
tail++; /* skip newline */
}
warn_print(": ");
warn_print2(einfo, len);
if (epath) {
warn_print(" (");
warn_print2(RSTRING_PTR(epath), RSTRING_LEN(epath));
warn_print(")\n");
}
if (tail) {
warn_print2(tail, elen - len - 1);
if (einfo[elen-1] != '\n') warn_print2("\n", 1);
}
}
}
if (!NIL_P(errat)) {
long i;
long len = RARRAY_LEN(errat);
VALUE *ptr = RARRAY_PTR(errat);
int skip = eclass == rb_eSysStackError;
#define TRACE_MAX (TRACE_HEAD+TRACE_TAIL+5)
#define TRACE_HEAD 8
#define TRACE_TAIL 5
for (i = 1; i < len; i++) {
if (TYPE(ptr[i]) == T_STRING) {
warn_printf("\tfrom %s\n", RSTRING_PTR(ptr[i]));
}
if (skip && i == TRACE_HEAD && len > TRACE_MAX) {
warn_printf("\t ... %ld levels...\n",
len - TRACE_HEAD - TRACE_TAIL);
i = len - TRACE_TAIL;
}
}
}
error:
POP_TAG();
}
// Macro Processing Loop, called from the periodic execution thread
// Called once per USB buffer send
void Macro_periodic()
{
// Latency measurement
Latency_start_time( macroLatencyResource );
#if defined(ConnectEnabled_define)
// Only compile in if a Connect node module is available
// If this is a interconnect slave node, send all scancodes to master node
if ( !Connect_master )
{
if ( macroTriggerEventBufferSize > 0 )
{
Connect_send_ScanCode( Connect_id, macroTriggerEventBuffer, macroTriggerEventBufferSize );
macroTriggerEventBufferSize = 0;
}
return;
}
#endif
#if defined(ConnectEnabled_define) || defined(PressReleaseCache_define)
#if defined(ConnectEnabled_define)
// Check if there are any ScanCodes in the interconnect cache to process
if ( Connect_master && macroInterconnectCacheSize > 0 )
#endif
{
// Iterate over all the cache ScanCodes
uint8_t currentInterconnectCacheSize = macroInterconnectCacheSize;
macroInterconnectCacheSize = 0;
for ( uint8_t c = 0; c < currentInterconnectCacheSize; c++ )
{
// Add to the trigger list
macroTriggerEventBuffer[ macroTriggerEventBufferSize++ ] = macroInterconnectCache[ c ];
// TODO Handle other TriggerGuide types (e.g. analog)
switch ( macroInterconnectCache[ c ].type )
{
// Normal (Press/Hold/Release)
case TriggerType_Switch1:
case TriggerType_Switch2:
case TriggerType_Switch3:
case TriggerType_Switch4:
case TriggerType_LED1:
// Decide what to do based on the current state
switch ( macroInterconnectCache[ c ].state )
{
// Re-add to interconnect cache in hold state
case ScheduleType_P: // Press
//case ScheduleType_H: // Hold // XXX Why does this not work? -HaaTa
macroInterconnectCache[ c ].state = ScheduleType_H;
macroInterconnectCache[ macroInterconnectCacheSize++ ] = macroInterconnectCache[ c ];
break;
case ScheduleType_R: // Release
break;
// Otherwise, do not re-add
default:
break;
}
break;
// Not implemented
default:
erro_msg("Interconnect Trigger Event Type - Not Implemented ");
printInt8( macroInterconnectCache[ c ].type );
print( NL );
break;
}
}
}
#endif
// Macro incoming state debug
switch ( macroDebugMode )
{
case 1:
case 2:
// Iterate over incoming triggers
for ( uint16_t trigger = 0; trigger < macroTriggerEventBufferSize; trigger++ )
{
// Show debug info about incoming trigger
Macro_showTriggerEvent( ¯oTriggerEventBuffer[trigger] );
print( NL );
}
case 3:
default:
break;
}
// Check macroTriggerEventBufferSize to make sure no overflow
if ( macroTriggerEventBufferSize >= MaxScanCode_KLL )
{
// No scancodes defined
if ( MaxScanCode_KLL == 0 )
{
warn_print("No scancodes defined! Check your BaseMap!");
}
// Bug!
else
{
erro_msg("Macro Trigger Event Overflow! Serious Bug! ");
printInt16( macroTriggerEventBufferSize );
print( NL );
macroTriggerEventBufferSize = 0;
}
}
// If the pause flag is set, only process if the step counter is non-zero
if ( macroPauseMode )
{
if ( macroStepCounter == 0 )
return;
// Proceed, decrementing the step counter
macroStepCounter--;
dbug_print("Macro Step");
}
// Process Trigger Macros
Trigger_process();
// Store events processed
var_uint_t macroTriggerEventBufferSize_processed = macroTriggerEventBufferSize;
// Reset TriggerList buffer
macroTriggerEventBufferSize = 0;
// Process result macros
Result_process();
// Signal buffer that we've used it
Scan_finishedWithMacro( macroTriggerEventBufferSize_processed );
#if defined(_host_)
// Signal host to read layer state
Output_callback( "layerState", "" );
#endif
// Latency measurement
Latency_end_time( macroLatencyResource );
// If Macro debug mode is set, clear the USB Buffer
#if defined(Output_USBEnabled_define)
if ( macroDebugMode == 1 || macroDebugMode == 3 )
{
USBKeys_primary.changed = 0;
}
#endif
}
void cliFunc_capSelect( char* args )
{
// Parse code from argument
char* curArgs;
char* arg1Ptr;
char* arg2Ptr = args;
// Total number of args to scan (must do a lookup if a keyboard capability is selected)
var_uint_t totalArgs = 2; // Always at least two args
var_uint_t cap = 0;
// Arguments used for keyboard capability function
var_uint_t argSetCount = 0;
uint8_t *argSet = (uint8_t*)args;
// Process all args
for ( var_uint_t c = 0; argSetCount < totalArgs; c++ )
{
curArgs = arg2Ptr;
CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
// Stop processing args if no more are found
// Extra arguments are ignored
if ( *arg1Ptr == '\0' )
break;
// For the first argument, choose the capability
if ( c == 0 ) switch ( arg1Ptr[0] )
{
// Keyboard Capability
case 'K':
// Determine capability index
cap = numToInt( &arg1Ptr[1] );
// Lookup the number of args
totalArgs += CapabilitiesList[ cap ].argCount;
continue;
}
// Because allocating memory isn't doable, and the argument count is arbitrary
// The argument pointer is repurposed as the argument list (much smaller anyways)
argSet[ argSetCount++ ] = (uint8_t)numToInt( arg1Ptr );
// Once all the arguments are prepared, call the keyboard capability function
if ( argSetCount == totalArgs )
{
// Indicate that the capability was called
print( NL );
info_msg("K");
printInt8( cap );
print(" - ");
printHex( argSet[0] );
print(" - ");
printHex( argSet[1] );
print(" - ");
printHex( argSet[2] );
print( "..." NL );
// Make sure this isn't the reload capability
// If it is, and the remote reflash define is not set, ignore
if ( flashModeEnabled_define == 0 ) for ( uint32_t cap = 0; cap < CapabilitiesNum; cap++ )
{
if ( CapabilitiesList[ cap ].func == (const void*)Output_flashMode_capability )
{
print( NL );
warn_print("flashModeEnabled not set, cancelling firmware reload...");
info_msg("Set flashModeEnabled to 1 in your kll configuration.");
return;
}
}
void (*capability)(TriggerMacro*, uint8_t, uint8_t, uint8_t*) = \
(void(*)(TriggerMacro*, uint8_t, uint8_t, uint8_t*))(CapabilitiesList[ cap ].func);
capability( 0, argSet[0], argSet[1], &argSet[2] );
}
}
}
// Adds a single USB Code to the USB Output buffer
// Argument #1: USB Code
void Output_usbCodeSend_capability( uint8_t state, uint8_t stateType, uint8_t *args )
{
// Display capability name
if ( stateType == 0xFF && state == 0xFF )
{
print("Output_usbCodeSend(usbCode)");
return;
}
// Depending on which mode the keyboard is in the USB needs Press/Hold/Release events
uint8_t keyPress = 0; // Default to key release, only used for NKRO
switch ( USBKeys_Protocol )
{
case 0: // Boot Mode
// TODO Analog inputs
// Only indicate USB has changed if either a press or release has occured
if ( state == 0x01 || state == 0x03 )
USBKeys_Changed = USBKeyChangeState_MainKeys;
// Only send keypresses if press or hold state
if ( stateType == 0x00 && state == 0x03 ) // Release state
return;
break;
case 1: // NKRO Mode
// Only send press and release events
if ( stateType == 0x00 && state == 0x02 ) // Hold state
return;
// Determine if setting or unsetting the bitfield (press == set)
if ( stateType == 0x00 && state == 0x01 ) // Press state
keyPress = 1;
break;
}
// Get the keycode from arguments
uint8_t key = args[0];
// Depending on which mode the keyboard is in, USBKeys_Keys array is used differently
// Boot mode - Maximum of 6 byte codes
// NKRO mode - Each bit of the 26 byte corresponds to a key
// Bits 0 - 45 (bytes 0 - 5) correspond to USB Codes 4 - 49 (Main)
// Bits 48 - 161 (bytes 6 - 20) correspond to USB Codes 51 - 164 (Secondary)
// Bits 168 - 213 (bytes 21 - 26) correspond to USB Codes 176 - 221 (Tertiary)
// Bits 214 - 216 unused
uint8_t bytePosition = 0;
uint8_t byteShift = 0;
switch ( USBKeys_Protocol )
{
case 0: // Boot Mode
// Set the modifier bit if this key is a modifier
if ( (key & 0xE0) == 0xE0 ) // AND with 0xE0 (Left Ctrl, first modifier)
{
USBKeys_Modifiers |= 1 << (key ^ 0xE0); // Left shift 1 by key XOR 0xE0
}
// Normal USB Code
else
{
// USB Key limit reached
if ( USBKeys_Sent >= USB_BOOT_MAX_KEYS )
{
warn_print("USB Key limit reached");
return;
}
// Make sure key is within the USB HID range
if ( key <= 104 )
{
USBKeys_Keys[USBKeys_Sent++] = key;
}
// Invalid key
else
{
warn_msg("USB Code above 104/0x68 in Boot Mode: ");
printHex( key );
print( NL );
}
}
break;
case 1: // NKRO Mode
// Set the modifier bit if this key is a modifier
if ( (key & 0xE0) == 0xE0 ) // AND with 0xE0 (Left Ctrl, first modifier)
{
if ( keyPress )
{
USBKeys_Modifiers |= 1 << (key ^ 0xE0); // Left shift 1 by key XOR 0xE0
}
else // Release
{
USBKeys_Modifiers &= ~(1 << (key ^ 0xE0)); // Left shift 1 by key XOR 0xE0
}
USBKeys_Changed |= USBKeyChangeState_Modifiers;
break;
}
// First 6 bytes
else if ( key >= 4 && key <= 49 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
// Starting at 0th position, each byte has 8 bits, starting at 4th bit
uint8_t keyPos = key + (0 * 8 - 4); // Starting position in array, Ignoring 4 keys
switch ( keyPos )
{
byteLookup( 0 );
byteLookup( 1 );
byteLookup( 2 );
byteLookup( 3 );
byteLookup( 4 );
byteLookup( 5 );
}
USBKeys_Changed |= USBKeyChangeState_MainKeys;
}
// Next 14 bytes
else if ( key >= 51 && key <= 155 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
// Starting at 6th byte position, each byte has 8 bits, starting at 51st bit
uint8_t keyPos = key + (6 * 8 - 51); // Starting position in array
switch ( keyPos )
{
byteLookup( 6 );
byteLookup( 7 );
byteLookup( 8 );
byteLookup( 9 );
byteLookup( 10 );
byteLookup( 11 );
byteLookup( 12 );
byteLookup( 13 );
byteLookup( 14 );
byteLookup( 15 );
byteLookup( 16 );
byteLookup( 17 );
byteLookup( 18 );
byteLookup( 19 );
}
USBKeys_Changed |= USBKeyChangeState_SecondaryKeys;
}
// Next byte
else if ( key >= 157 && key <= 164 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
uint8_t keyPos = key + (20 * 8 - 157); // Starting position in array, Ignoring 6 keys
switch ( keyPos )
{
byteLookup( 20 );
}
USBKeys_Changed |= USBKeyChangeState_TertiaryKeys;
}
// Last 6 bytes
else if ( key >= 176 && key <= 221 )
{
// Lookup (otherwise division or multiple checks are needed to do alignment)
uint8_t keyPos = key + (21 * 8 - 176); // Starting position in array
switch ( keyPos )
{
byteLookup( 21 );
byteLookup( 22 );
byteLookup( 23 );
byteLookup( 24 );
byteLookup( 25 );
byteLookup( 26 );
}
USBKeys_Changed |= USBKeyChangeState_QuartiaryKeys;
}
// Received 0x00
// This is a special USB Code that internally indicates a "break"
// It is used to send "nothing" in order to break up sequences of USB Codes
else if ( key == 0x00 )
{
USBKeys_Changed |= USBKeyChangeState_MainKeys;
// Also flush out buffers just in case
Output_flushBuffers();
break;
}
// Invalid key
else
{
warn_msg("USB Code not within 4-49 (0x4-0x31), 51-155 (0x33-0x9B), 157-164 (0x9D-0xA4), 176-221 (0xB0-0xDD) or 224-231 (0xE0-0xE7) NKRO Mode: ");
printHex( key );
print( NL );
break;
}
// Set/Unset
if ( keyPress )
{
USBKeys_Keys[bytePosition] |= (1 << byteShift);
USBKeys_Sent++;
}
else // Release
{
USBKeys_Keys[bytePosition] &= ~(1 << byteShift);
USBKeys_Sent++;
}
break;
}
}
void
rb_threadptr_error_print(rb_thread_t *th, VALUE errinfo)
{
volatile VALUE errat = Qundef;
int raised_flag = th->raised_flag;
volatile VALUE eclass = Qundef, e = Qundef;
const char *volatile einfo;
volatile long elen;
VALUE mesg;
if (NIL_P(errinfo))
return;
rb_thread_raised_clear(th);
TH_PUSH_TAG(th);
if (TH_EXEC_TAG() == 0) {
errat = rb_get_backtrace(errinfo);
}
else if (errat == Qundef) {
errat = Qnil;
}
else if (eclass == Qundef || e != Qundef) {
goto error;
}
else {
goto no_message;
}
if (NIL_P(errat) || RARRAY_LEN(errat) == 0 ||
NIL_P(mesg = RARRAY_AREF(errat, 0))) {
error_pos();
}
else {
warn_print_str(mesg);
warn_print(": ");
}
eclass = CLASS_OF(errinfo);
if (eclass != Qundef &&
(e = rb_check_funcall(errinfo, rb_intern("message"), 0, 0)) != Qundef &&
(RB_TYPE_P(e, T_STRING) || !NIL_P(e = rb_check_string_type(e)))) {
einfo = RSTRING_PTR(e);
elen = RSTRING_LEN(e);
}
else {
no_message:
einfo = "";
elen = 0;
}
if (eclass == rb_eRuntimeError && elen == 0) {
warn_print("unhandled exception\n");
}
else {
VALUE epath;
epath = rb_class_name(eclass);
if (elen == 0) {
warn_print_str(epath);
warn_print("\n");
}
else {
const char *tail = 0;
long len = elen;
if (RSTRING_PTR(epath)[0] == '#')
epath = 0;
if ((tail = memchr(einfo, '\n', elen)) != 0) {
len = tail - einfo;
tail++; /* skip newline */
}
warn_print_str(tail ? rb_str_subseq(e, 0, len) : e);
if (epath) {
warn_print(" (");
warn_print_str(epath);
warn_print(")\n");
}
if (tail) {
warn_print_str(rb_str_subseq(e, tail - einfo, elen - len - 1));
}
if (tail ? einfo[elen-1] != '\n' : !epath) warn_print2("\n", 1);
}
}
if (!NIL_P(errat)) {
long i;
long len = RARRAY_LEN(errat);
int skip = eclass == rb_eSysStackError;
#define TRACE_MAX (TRACE_HEAD+TRACE_TAIL+5)
#define TRACE_HEAD 8
#define TRACE_TAIL 5
for (i = 1; i < len; i++) {
VALUE line = RARRAY_AREF(errat, i);
if (RB_TYPE_P(line, T_STRING)) {
warn_print_str(rb_sprintf("\tfrom %"PRIsVALUE"\n", line));
}
if (skip && i == TRACE_HEAD && len > TRACE_MAX) {
warn_print_str(rb_sprintf("\t ... %ld levels...\n",
len - TRACE_HEAD - TRACE_TAIL));
i = len - TRACE_TAIL;
}
}
}
error:
TH_POP_TAG();
th->errinfo = errinfo;
rb_thread_raised_set(th, raised_flag);
}
int32_t i2c_send_sequence(
uint8_t ch,
uint16_t *sequence,
uint32_t sequence_length,
uint8_t *received_data,
void ( *callback_fn )( void* ),
void *user_data
) {
int32_t result = 0;
volatile I2C_Channel *channel = &( i2c_channels[ch - ISSI_I2C_FirstBus_define] );
uint8_t address;
#if defined(_kinetis_)
uint8_t status;
volatile uint8_t *I2C_C1 = (uint8_t*)(&I2C0_C1) + i2c_offset[ch];
volatile uint8_t *I2C_S = (uint8_t*)(&I2C0_S) + i2c_offset[ch];
volatile uint8_t *I2C_D = (uint8_t*)(&I2C0_D) + i2c_offset[ch];
#elif defined(_sam_)
Twi *twi_dev = twi_devs[ch];
#endif
if ( channel->status == I2C_BUSY )
{
return -1;
}
// Check if there are back-to-back errors
// in succession
if ( channel->last_error > 5 )
{
warn_msg("I2C Bus Error: ");
printInt8( ch );
print(" errors: ");
printInt32( channel->error_count );
print( NL );
}
// Debug
/*
for ( uint8_t c = 0; c < sequence_length; c++ )
{
printHex( sequence[c] );
print(" ");
}
print(NL);
*/
channel->sequence = sequence;
channel->sequence_end = sequence + sequence_length;
channel->received_data = received_data;
channel->status = I2C_BUSY;
channel->txrx = I2C_WRITING;
channel->callback_fn = callback_fn;
channel->user_data = user_data;
// reads_ahead does not need to be initialized
#if defined(_kinetis_)
// Acknowledge the interrupt request, just in case
*I2C_S |= I2C_S_IICIF;
*I2C_C1 = ( I2C_C1_IICEN | I2C_C1_IICIE );
// Generate a start condition and prepare for transmitting.
*I2C_C1 |= ( I2C_C1_MST | I2C_C1_TX );
status = *I2C_S;
if ( status & I2C_S_ARBL )
{
warn_print("Arbitration lost");
result = -1;
goto i2c_send_sequence_cleanup;
}
// Write the first (address) byte.
address = *channel->sequence++;
*I2C_D = address;
// Everything is OK.
return result;
i2c_send_sequence_cleanup:
// Record error, and reset last error counter
channel->error_count++;
channel->last_error++;
// Generate STOP and disable further interrupts.
*I2C_C1 &= ~( I2C_C1_IICIE | I2C_C1_MST | I2C_C1_TX );
channel->status = I2C_ERROR;
#elif defined(_sam_)
// Convert 8 bit address to 7bit + RW
address = *channel->sequence++;
//print("Address: ");
//printHex( address );
//print( NL );
uint8_t mread = address & 1;
address >>= 1;
// Set slave address
twi_dev->TWI_MMR = TWI_MMR_DADR(address) | (mread ? TWI_MMR_MREAD : 0);
// Enable interrupts
twi_dev->TWI_IER = TWI_IER_RXRDY | TWI_IER_TXRDY | TWI_IER_TXCOMP | TWI_IER_ARBLST;
//twi_dev->TWI_IDR = 0xFFFFFFFF;
// Generate a start condition
twi_dev->TWI_CR |= TWI_CR_START;
// Fire off the first read or write.
// The first (address) byte is automatically trasmitted before any data
// Arbitration errors will be handled in the isr
i2c_isr(ch);
// Everything is OK.
return result;
#endif
return result;
}