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- /* Copyright (C) 2014-2015 by Jacob Alexander
- *
- * This file is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this file. If not, see <http://www.gnu.org/licenses/>.
- */
-
- // ----- Includes -----
-
- // Compiler Includes
- #include <Lib/ScanLib.h>
-
- // Project Includes
- #include <cli.h>
- #include <kll_defs.h>
- #include <led.h>
- #include <print.h>
- #include <macro.h>
-
- // Local Includes
- #include "connect_scan.h"
-
-
-
- // ----- Macros -----
-
- // Macro for adding to each uart Tx ring buffer
- #define uart_addTxBuffer( uartNum ) \
- case uartNum: \
- /* Delay UART copy until there's some space left */ \
- while ( uart##uartNum##_buffer_items + count > uart_buffer_size ) \
- { \
- warn_msg("Too much data to send on UART0, waiting..."); \
- delay( 1 ); \
- } \
- /* Append data to ring buffer */ \
- for ( uint8_t c = 0; c < count; c++ ) \
- { \
- if ( Connect_debug ) \
- { \
- printHex( buffer[ c ] ); \
- print( " +" #uartNum NL ); \
- } \
- uart##uartNum##_buffer[ uart##uartNum##_buffer_tail++ ] = buffer[ c ]; \
- uart##uartNum##_buffer_items++; \
- if ( uart##uartNum##_buffer_tail >= uart_buffer_size ) \
- uart##uartNum##_buffer_tail = 0; \
- if ( uart##uartNum##_buffer_head == uart##uartNum##_buffer_tail ) \
- uart##uartNum##_buffer_head++; \
- if ( uart##uartNum##_buffer_head >= uart_buffer_size ) \
- uart##uartNum##_buffer_head = 0; \
- } \
- break
-
- // Macro for popping from Tx ring buffer
- #define uart_fillTxFifo( uartNum ) \
- { \
- uint8_t fifoSize = ( ( UART##uartNum##_PFIFO & UART_PFIFO_TXFIFOSIZE ) >> 2 ); \
- if ( fifoSize == 0 ) \
- fifoSize = 1; \
- while ( UART##uartNum##_TCFIFO < fifoSize ) \
- { \
- if ( uart##uartNum##_buffer_items == 0 ) \
- break; \
- UART##uartNum##_D = uart##uartNum##_buffer[ uart##uartNum##_buffer_head++ ]; \
- uart##uartNum##_buffer_items--; \
- if ( uart##uartNum##_buffer_head >= uart_buffer_size ) \
- uart##uartNum##_buffer_head = 0; \
- } \
- }
-
- // Macro for processing UART Rx
- #define uart_processRx( uartNum ) \
- { \
- if ( !( UART##uartNum##_S1 & UART_S1_RDRF ) ) \
- return; \
- uint8_t available = UART##uartNum##_RCFIFO; \
- if ( available == 0 ) \
- { \
- available = UART##uartNum##_D; \
- UART##uartNum##_CFIFO = UART_CFIFO_RXFLUSH; \
- return; \
- } \
- /* Process each byte in the UART buffer */ \
- while ( available-- > 0 ) \
- { \
- uint8_t byteRead = UART##uartNum##_D; \
- if ( Connect_debug ) \
- { \
- printHex( byteRead ); \
- print( "(" ); \
- printInt8( available ); \
- print( ") <-" ); \
- } \
- switch ( uart##uartNum##_rx_status ) \
- { \
- case UARTStatus_Wait: \
- if ( Connect_debug ) \
- { \
- print(" SYN "); \
- } \
- uart##uartNum##_rx_status = byteRead == 0x16 ? UARTStatus_SYN : UARTStatus_Wait; \
- break; \
- case UARTStatus_SYN: \
- if ( Connect_debug ) \
- { \
- print(" SOH "); \
- } \
- uart##uartNum##_rx_status = byteRead == 0x01 ? UARTStatus_SOH : UARTStatus_Wait; \
- break; \
- case UARTStatus_SOH: \
- { \
- if ( Connect_debug ) \
- { \
- print(" CMD "); \
- } \
- uint8_t byte = byteRead; \
- if ( byte <= Animation ) \
- { \
- uart##uartNum##_rx_status = UARTStatus_Command; \
- uart##uartNum##_rx_command = byte; \
- uart##uartNum##_rx_bytes_waiting = 0xFFFF; \
- } \
- else \
- { \
- uart##uartNum##_rx_status = UARTStatus_Wait; \
- } \
- switch ( uart##uartNum##_rx_command ) \
- { \
- case IdRequest: \
- Connect_receive_IdRequest( 0, (uint16_t*)&uart##uartNum##_rx_bytes_waiting, uartNum ); \
- uart##uartNum##_rx_status = UARTStatus_Wait; \
- break; \
- default: \
- if ( Connect_debug ) \
- { \
- print("###"); \
- } \
- break; \
- } \
- break; \
- } \
- case UARTStatus_Command: \
- { \
- if ( Connect_debug ) \
- { \
- print(" CMD "); \
- } \
- /* Call specific UARTConnect command receive function */ \
- uint8_t (*rcvFunc)(uint8_t, uint16_t(*), uint8_t) = (uint8_t(*)(uint8_t, uint16_t(*), uint8_t))(Connect_receiveFunctions[ uart##uartNum##_rx_command ]); \
- if ( rcvFunc( byteRead, (uint16_t*)&uart##uartNum##_rx_bytes_waiting, uartNum ) ) \
- uart##uartNum##_rx_status = UARTStatus_Wait; \
- break; \
- } \
- default: \
- erro_msg("Invalid UARTStatus..."); \
- uart##uartNum##_rx_status = UARTStatus_Wait; \
- available++; \
- continue; \
- } \
- if ( Connect_debug ) \
- { \
- print( NL ); \
- } \
- } \
- }
-
- // Macros for locking/unlock Tx buffers
- #define uart_lockTx( uartNum ) \
- { \
- while ( uart##uartNum##_tx_status == UARTStatus_Wait ); \
- uart##uartNum##_tx_status = UARTStatus_Wait; \
- }
-
- #define uart_unlockTx( uartNum ) \
- { \
- uart##uartNum##_tx_status = UARTStatus_Ready; \
- }
-
-
-
- // ----- Function Declarations -----
-
- // CLI Functions
- void cliFunc_connectCmd ( char *args );
- void cliFunc_connectIdl ( char *args );
- void cliFunc_connectLst ( char *args );
- void cliFunc_connectMst ( char *args );
- void cliFunc_connectRst ( char *args );
- void cliFunc_connectSts ( char *args );
-
-
-
- // ----- Variables -----
-
- // Connect Module command dictionary
- CLIDict_Entry( connectCmd, "Sends a command via UART Connect, first arg is which uart, next arg is the command, rest are the arguments." );
- CLIDict_Entry( connectIdl, "Sends N number of Idle commands, 2 is the default value, and should be sufficient in most cases." );
- CLIDict_Entry( connectLst, "Lists available UARTConnect commands and index id" );
- CLIDict_Entry( connectMst, "Sets the device as master. Use argument of s to set as slave." );
- CLIDict_Entry( connectRst, "Resets both Rx and Tx connect buffers and state variables." );
- CLIDict_Entry( connectSts, "UARTConnect status." );
- CLIDict_Def( uartConnectCLIDict, "UARTConnect Module Commands" ) = {
- CLIDict_Item( connectCmd ),
- CLIDict_Item( connectIdl ),
- CLIDict_Item( connectLst ),
- CLIDict_Item( connectMst ),
- CLIDict_Item( connectRst ),
- CLIDict_Item( connectSts ),
- { 0, 0, 0 } // Null entry for dictionary end
- };
-
-
- // -- Connect Device Id Variables --
- uint8_t Connect_id = 255; // Invalid, unset
- uint8_t Connect_master = 0;
-
-
- // -- Control Variables --
- uint32_t Connect_lastCheck = 0; // Cable Check scheduler
- uint8_t Connect_debug = 0; // Set 1 for debug
-
-
- // -- Rx Status Variables --
-
- volatile UARTStatus uart0_rx_status;
- volatile UARTStatus uart1_rx_status;
- volatile uint16_t uart0_rx_bytes_waiting;
- volatile uint16_t uart1_rx_bytes_waiting;
- volatile Command uart0_rx_command;
- volatile Command uart1_rx_command;
-
-
- // -- Tx Status Variables --
-
- volatile UARTStatus uart0_tx_status;
- volatile UARTStatus uart1_tx_status;
-
-
- // -- Ring Buffer Variables --
-
- #define uart_buffer_size UARTConnectBufSize_define
- volatile uint8_t uart0_buffer_head;
- volatile uint8_t uart0_buffer_tail;
- volatile uint8_t uart0_buffer_items;
- volatile uint8_t uart0_buffer[uart_buffer_size];
- volatile uint8_t uart1_buffer_head;
- volatile uint8_t uart1_buffer_tail;
- volatile uint8_t uart1_buffer_items;
- volatile uint8_t uart1_buffer[uart_buffer_size];
-
- volatile uint8_t uarts_configured = 0;
-
-
- // -- Ring Buffer Convenience Functions --
-
- void Connect_addBytes( uint8_t *buffer, uint8_t count, uint8_t uart )
- {
- // Too big to fit into buffer
- if ( count > uart_buffer_size )
- {
- erro_msg("Too big of a command to fit into the buffer...");
- return;
- }
-
- // Choose the uart
- switch ( uart )
- {
- uart_addTxBuffer( 0 );
- uart_addTxBuffer( 1 );
- default:
- erro_msg("Invalid UART to send from...");
- break;
- }
- }
-
-
- // -- Connect send functions --
-
- // patternLen defines how many bytes should the incrementing pattern have
- void Connect_send_CableCheck( uint8_t patternLen )
- {
- // Wait until the Tx buffers are ready, then lock them
- uart_lockTx( 0 );
- uart_lockTx( 1 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, CableCheck, patternLen };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 1 ); // Master
- Connect_addBytes( header, sizeof( header ), 0 ); // Slave
-
- // Send 0xD2 (11010010) for each argument
- uint8_t value = 0xD2;
- for ( uint8_t c = 0; c < patternLen; c++ )
- {
- Connect_addBytes( &value, 1, 1 ); // Master
- Connect_addBytes( &value, 1, 0 ); // Slave
- }
-
- // Release Tx buffers
- uart_unlockTx( 0 );
- uart_unlockTx( 1 );
- }
-
- void Connect_send_IdRequest()
- {
- // Lock master bound Tx
- uart_lockTx( 1 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, IdRequest };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 1 ); // Master
-
- // Unlock Tx
- uart_unlockTx( 1 );
- }
-
- // id is the value the next slave should enumerate as
- void Connect_send_IdEnumeration( uint8_t id )
- {
- // Lock slave bound Tx
- uart_lockTx( 0 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, IdEnumeration, id };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 0 ); // Slave
-
- // Unlock Tx
- uart_unlockTx( 0 );
- }
-
- // id is the currently assigned id to the slave
- void Connect_send_IdReport( uint8_t id )
- {
- // Lock master bound Tx
- uart_lockTx( 1 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, IdReport, id };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 1 ); // Master
-
- // Unlock Tx
- uart_unlockTx( 1 );
- }
-
- // id is the currently assigned id to the slave
- // scanCodeStateList is an array of [scancode, state]'s (8 bit values)
- // numScanCodes is the number of scan codes to parse from array
- void Connect_send_ScanCode( uint8_t id, TriggerGuide *scanCodeStateList, uint8_t numScanCodes )
- {
- // Lock master bound Tx
- uart_lockTx( 1 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, ScanCode, id, numScanCodes };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 1 ); // Master
-
- // Send each of the scan codes
- Connect_addBytes( (uint8_t*)scanCodeStateList, numScanCodes * TriggerGuideSize, 1 ); // Master
-
- // Unlock Tx
- uart_unlockTx( 1 );
- }
-
- // id is the currently assigned id to the slave
- // paramList is an array of [param, value]'s (8 bit values)
- // numParams is the number of params to parse from the array
- void Connect_send_Animation( uint8_t id, uint8_t *paramList, uint8_t numParams )
- {
- // Lock slave bound Tx
- uart_lockTx( 0 );
-
- // Prepare header
- uint8_t header[] = { 0x16, 0x01, Animation, id, numParams };
-
- // Send header
- Connect_addBytes( header, sizeof( header ), 0 ); // Slave
-
- // Send each of the scan codes
- Connect_addBytes( paramList, numParams, 0 ); // Slave
-
- // Unlock Tx
- uart_unlockTx( 0 );
- }
-
- void Connect_send_Idle( uint8_t num )
- {
- // Wait until the Tx buffers are ready, then lock them
- uart_lockTx( 0 );
- uart_lockTx( 1 );
-
- // Send n number of idles to reset link status (if in a bad state)
- uint8_t value = 0x16;
- for ( uint8_t c = 0; c < num; c++ )
- {
- Connect_addBytes( &value, 1, 1 ); // Master
- Connect_addBytes( &value, 1, 0 ); // Slave
- }
-
- // Release Tx buffers
- uart_unlockTx( 0 );
- uart_unlockTx( 1 );
- }
-
-
- // -- Connect receive functions --
-
- // - Cable Check variables -
- uint32_t Connect_cableFaultsMaster = 0;
- uint32_t Connect_cableFaultsSlave = 0;
- uint8_t Connect_cableOkMaster = 0;
- uint8_t Connect_cableOkSlave = 0;
-
- uint8_t Connect_receive_CableCheck( uint8_t byte, uint16_t *pending_bytes, uint8_t to_slave )
- {
- // 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 ( to_slave )
- {
- Connect_cableFaultsMaster++;
- Connect_cableOkMaster = 0;
- print(" Master ");
- }
- else
- {
- Connect_cableFaultsSlave++;
- Connect_cableOkSlave = 0;
- print(" Slave ");
- }
- printHex( byte );
- print( NL );
-
- // Signal that the command should wait for a SYN again
- return 1;
- }
- }
-
- // If cable check was successful, set cable ok
- if ( *pending_bytes == 0 )
- {
- if ( to_slave )
- {
- Connect_cableOkMaster = 1;
- }
- else
- {
- Connect_cableOkSlave = 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;
- }
-
- uint8_t Connect_receive_IdRequest( uint8_t byte, uint16_t *pending_bytes, uint8_t to_slave )
- {
- dbug_print("IdRequest");
- // Check the directionality
- if ( to_slave )
- {
- erro_print("Invalid IdRequest direction...");
- }
-
- // Check if master, begin IdEnumeration
- if ( Connect_master )
- {
- // The first device is always id 1
- // Id 0 is reserved for the master
- Connect_send_IdEnumeration( 1 );
- }
- // Propagate IdRequest
- else
- {
- Connect_send_IdRequest();
- }
-
- return 1;
- }
-
- uint8_t Connect_receive_IdEnumeration( uint8_t id, uint16_t *pending_bytes, uint8_t to_slave )
- {
- dbug_print("IdEnumeration");
- // Check the directionality
- if ( !to_slave )
- {
- erro_print("Invalid IdEnumeration direction...");
- }
-
- // Set the device id
- Connect_id = id;
-
- // Send reponse back to master
- Connect_send_IdReport( id );
-
- // Propogate next Id if the connection is ok
- if ( Connect_cableOkSlave )
- {
- Connect_send_IdEnumeration( id + 1 );
- }
-
- return 1;
- }
-
- uint8_t Connect_receive_IdReport( uint8_t id, uint16_t *pending_bytes, uint8_t to_slave )
- {
- dbug_print("IdReport");
- // Check the directionality
- if ( to_slave )
- {
- erro_print("Invalid IdRequest direction...");
- }
-
- // Track Id response if master
- if ( Connect_master )
- {
- // TODO, setup id's
- info_msg("Id Reported: ");
- printHex( id );
- print( NL );
- return 1;
- }
- // Propagate id if yet another slave
- else
- {
- Connect_send_IdReport( id );
- }
-
- return 1;
- }
-
- // - Scan Code Variables -
- TriggerGuide Connect_receive_ScanCodeBuffer;
- uint8_t Connect_receive_ScanCodeBufferPos;
- uint8_t Connect_receive_ScanCodeDeviceId;
-
- uint8_t Connect_receive_ScanCode( uint8_t byte, uint16_t *pending_bytes, uint8_t to_slave )
- {
- dbug_print("ScanCode");
- // Check the directionality
- if ( to_slave )
- {
- erro_print("Invalid ScanCode direction...");
- }
-
- // Master node, trigger scan codes
- if ( Connect_master ) switch ( (*pending_bytes)-- )
- {
- // Byte count always starts at 0xFFFF
- case 0xFFFF: // Device Id
- Connect_receive_ScanCodeDeviceId = byte;
- break;
-
- case 0xFFFE: // Number of TriggerGuides in bytes (byte * 3)
- *pending_bytes = byte * sizeof( TriggerGuide );
- Connect_receive_ScanCodeBufferPos = 0;
- break;
-
- default:
- // Set the specific TriggerGuide entry
- ((uint8_t*)&Connect_receive_ScanCodeBuffer)[ Connect_receive_ScanCodeBufferPos++ ] = byte;
-
- // Reset the BufferPos if higher than sizeof TriggerGuide
- // And send the TriggerGuide to the Macro Module
- if ( Connect_receive_ScanCodeBufferPos > sizeof( TriggerGuide ) )
- {
- Connect_receive_ScanCodeBufferPos = 0;
-
- // Adjust ScanCode offset
- if ( Connect_receive_ScanCodeDeviceId > 0 )
- {
- // This variable is in generatedKeymaps.h
- extern uint8_t InterconnectOffsetList[];
- Connect_receive_ScanCodeBuffer.scanCode = Connect_receive_ScanCodeBuffer.scanCode + InterconnectOffsetList[ Connect_receive_ScanCodeDeviceId - 1 ];
- }
-
- // ScanCode receive debug
- dbug_print("");
- printHex( Connect_receive_ScanCodeBuffer.type );
- print(" ");
- printHex( Connect_receive_ScanCodeBuffer.state );
- print(" ");
- printHex( Connect_receive_ScanCodeBuffer.scanCode );
- print( NL );
-
- // Send ScanCode to macro module
- // TODO
- //Macro_triggerState( &Connect_receive_ScanCodeBuffer, 1 );
- }
-
- break;
- }
- // Propagate ScanCode packet
- else switch ( (*pending_bytes)-- )
- {
- // Byte count always starts at 0xFFFF
- case 0xFFFF: // Device Id
- {
- Connect_receive_ScanCodeDeviceId = byte;
-
- // Lock the master Tx buffer
- uart_lockTx( 1 );
-
- // Send header + Id byte
- uint8_t header[] = { 0x16, 0x01, ScanCode, byte };
- Connect_addBytes( header, sizeof( header ), 1 ); // Master
- break;
- }
- case 0xFFFE: // Number of TriggerGuides in bytes
- *pending_bytes = byte * sizeof( TriggerGuide );
- Connect_receive_ScanCodeBufferPos = 0;
-
- // Pass through byte
- Connect_addBytes( &byte, 1, 1 ); // Master
- break;
-
- default:
- // Pass through byte
- Connect_addBytes( &byte, 1, 1 ); // Master
-
- // Unlock Tx Buffer after sending last byte
- if ( *pending_bytes == 0 )
- uart_unlockTx( 1 );
- break;
- }
-
- // Check whether the scan codes have finished sending
- return *pending_bytes == 0 ? 1 : 0;
- }
-
- uint8_t Connect_receive_Animation( uint8_t byte, uint16_t *pending_bytes, uint8_t to_slave )
- {
- dbug_print("Animation");
- return 1;
- }
-
-
- // Baud Rate
- // NOTE: If finer baud adjustment is needed see UARTx_C4 -> BRFA in the datasheet
- uint16_t Connect_baud = UARTConnectBaud_define; // Max setting of 8191
- uint16_t Connect_baudFine = UARTConnectBaudFine_define;
-
- // Connect receive function lookup
- void *Connect_receiveFunctions[] = {
- Connect_receive_CableCheck,
- Connect_receive_IdRequest,
- Connect_receive_IdEnumeration,
- Connect_receive_IdReport,
- Connect_receive_ScanCode,
- Connect_receive_Animation,
- };
-
-
-
- // ----- Interrupt Functions -----
-
- // Master / UART0 ISR
- void uart0_status_isr()
- {
- // Process Rx buffer
- uart_processRx( 0 );
- }
-
- // Slave / UART1 ISR
- void uart1_status_isr()
- {
- // Process Rx buffer
- uart_processRx( 1 );
- }
-
-
-
- // ----- Functions -----
-
- // Resets the state of the UART buffers and state variables
- void Connect_reset()
- {
- // Rx Status Variables
- uart0_rx_status = UARTStatus_Wait;
- uart1_rx_status = UARTStatus_Wait;
- uart0_rx_bytes_waiting = 0;
- uart1_rx_bytes_waiting = 0;
-
- // Tx Status Variables
- uart0_tx_status = UARTStatus_Ready;
- uart1_tx_status = UARTStatus_Ready;
-
- // Ring Buffer Variables
- uart0_buffer_head = 0;
- uart0_buffer_tail = 0;
- uart0_buffer_items = 0;
- uart1_buffer_head = 0;
- uart1_buffer_tail = 0;
- uart1_buffer_items = 0;
- }
-
-
- // Setup connection to other side
- // - Only supports a single slave and master
- // - If USB has been initiallized at this point, this side is the master
- // - If both sides assert master, flash error leds
- void Connect_setup( uint8_t master )
- {
- // Indication that UARTs are not ready
- uarts_configured = 0;
-
- // Register Connect CLI dictionary
- CLI_registerDictionary( uartConnectCLIDict, uartConnectCLIDictName );
-
- // Check if master
- Connect_master = master;
- if ( Connect_master )
- Connect_id = 0; // 0x00 is always the master Id
-
- // Master / UART0 setup
- // Slave / UART1 setup
- // Setup the the UART interface for keyboard data input
- SIM_SCGC4 |= SIM_SCGC4_UART0; // Disable clock gating
- SIM_SCGC4 |= SIM_SCGC4_UART1; // Disable clock gating
-
- // Pin Setup for UART0 / UART1
- PORTA_PCR1 = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(2); // RX Pin
- PORTA_PCR2 = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(2); // TX Pin
- PORTE_PCR0 = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); // RX Pin
- PORTE_PCR1 = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); // TX Pin
-
- // Baud Rate setting
- UART0_BDH = (uint8_t)(Connect_baud >> 8);
- UART0_BDL = (uint8_t)Connect_baud;
- UART0_C4 = Connect_baudFine;
- UART1_BDH = (uint8_t)(Connect_baud >> 8);
- UART1_BDL = (uint8_t)Connect_baud;
- UART1_C4 = Connect_baudFine;
-
- // 8 bit, Even Parity, Idle Character bit after stop
- // NOTE: For 8 bit with Parity you must enable 9 bit transmission (pg. 1065)
- // You only need to use UART0_D for 8 bit reading/writing though
- // UART_C1_M UART_C1_PE UART_C1_PT UART_C1_ILT
- UART0_C1 = UART_C1_M | UART_C1_PE | UART_C1_ILT;
- UART1_C1 = UART_C1_M | UART_C1_PE | UART_C1_ILT;
-
- // Number of bytes in FIFO before TX Interrupt
- // TODO Set 0
- UART0_TWFIFO = 1;
- UART1_TWFIFO = 1;
-
- // Number of bytes in FIFO before RX Interrupt
- UART0_RWFIFO = 1;
- UART1_RWFIFO = 1;
-
- // Enable TX and RX FIFOs
- UART0_PFIFO = UART_PFIFO_TXFE | UART_PFIFO_RXFE;
- UART1_PFIFO = UART_PFIFO_TXFE | UART_PFIFO_RXFE;
-
- // Reciever Inversion Disabled, LSBF
- // UART_S2_RXINV UART_S2_MSBF
- UART0_S2 |= 0x00;
- UART1_S2 |= 0x00;
-
- // Transmit Inversion Disabled
- // UART_C3_TXINV
- UART0_C3 |= 0x00;
- UART1_C3 |= 0x00;
-
- // TX Enabled, RX Enabled, RX Interrupt Enabled
- // UART_C2_TE UART_C2_RE UART_C2_RIE
- UART0_C2 = UART_C2_TE | UART_C2_RE | UART_C2_RIE;
- UART1_C2 = UART_C2_TE | UART_C2_RE | UART_C2_RIE;
-
- // Add interrupts to the vector table
- NVIC_ENABLE_IRQ( IRQ_UART0_STATUS );
- NVIC_ENABLE_IRQ( IRQ_UART1_STATUS );
-
- // UARTs are now ready to go
- uarts_configured = 1;
-
- // Reset the state of the UART variables
- Connect_reset();
- }
-
-
- // Scan for updates in the master/slave
- // - Interrupts will deal with most input functions
- // - Used to send queries
- // - SyncEvent is sent immediately once the current command is sent
- // - SyncEvent is also blocking until sent
- void Connect_scan()
- {
- // Check if initially configured as a slave and usb comes up
- // Then reconfigure as a master
- if ( !Connect_master && Output_Available )
- {
- Connect_setup( Output_Available );
- }
-
- // Limit how often we do cable checks
- uint32_t time_compare = 0x7FF; // Must be all 1's, 0x3FF is valid, 0x4FF is not
- uint32_t current_time = systick_millis_count;
- if ( Connect_lastCheck != current_time
- && ( current_time & time_compare ) == time_compare
- )
- {
- // Make sure we don't double check if the clock speed is too high
- Connect_lastCheck = current_time;
-
- // Send a cable check command of 2 bytes
- Connect_send_CableCheck( UARTConnectCableCheckLength_define );
-
- // If this is a slave, and we don't have an id yeth
- // Don't bother sending if there are cable issues
- if ( !Connect_master && Connect_id == 0xFF && Connect_cableOkMaster )
- {
- Connect_send_IdRequest();
- }
- }
-
- // Only process commands if uarts have been configured
- if ( uarts_configured )
- {
- // Check if Tx Buffers are empty and the Tx Ring buffers have data to send
- // This happens if there was previously nothing to send
- if ( uart0_buffer_items > 0 && UART0_TCFIFO == 0 )
- uart_fillTxFifo( 0 );
- if ( uart1_buffer_items > 0 && UART1_TCFIFO == 0 )
- uart_fillTxFifo( 1 );
- }
- }
-
-
-
- // ----- CLI Command Functions -----
-
- void cliFunc_connectCmd( char* args )
- {
- // Parse number from argument
- // NOTE: Only first argument is used
- char* arg1Ptr;
- char* arg2Ptr;
- CLI_argumentIsolation( args, &arg1Ptr, &arg2Ptr );
-
- print( NL );
-
- switch ( numToInt( &arg1Ptr[0] ) )
- {
- case CableCheck:
- Connect_send_CableCheck( UARTConnectCableCheckLength_define );
- break;
-
- case IdRequest:
- Connect_send_IdRequest();
- break;
-
- case IdEnumeration:
- Connect_send_IdEnumeration( 5 );
- break;
-
- case IdReport:
- Connect_send_IdReport( 8 );
- break;
-
- case ScanCode:
- {
- TriggerGuide scanCodes[] = { { 0x00, 0x01, 0x05 }, { 0x00, 0x03, 0x16 } };
- Connect_send_ScanCode( 10, scanCodes, 2 );
- break;
- }
- case Animation:
- break;
-
- case RemoteCapability:
- // TODO
- break;
-
- case RemoteOutput:
- // TODO
- break;
-
- case RemoteInput:
- // TODO
- break;
-
- default:
- break;
- }
- }
-
- void cliFunc_connectIdl( char* args )
- {
- // Parse number from argument
- // NOTE: Only first argument is used
- char* arg1Ptr;
- char* arg2Ptr;
- CLI_argumentIsolation( args, &arg1Ptr, &arg2Ptr );
-
- print( NL );
- info_msg("Sending Sync Idles...");
-
- uint8_t count = numToInt( &arg1Ptr[0] );
- // Default to 2 idles
- if ( count == 0 )
- count = 2;
-
- Connect_send_Idle( count );
- }
-
- void cliFunc_connectLst( char* args )
- {
- const char *Command_strs[] = {
- "CableCheck",
- "IdRequest",
- "IdEnumeration",
- "IdReport",
- "ScanCode",
- "Animation",
- "RemoteCapability",
- "RemoteOutput",
- "RemoteInput",
- };
-
- print( NL );
- info_msg("List of UARTConnect commands");
- for ( uint8_t cmd = 0; cmd < Command_TOP; cmd++ )
- {
- print( NL );
- printInt8( cmd );
- print(" - ");
- dPrint( (char*)Command_strs[ cmd ] );
- }
- }
-
- void cliFunc_connectMst( char* args )
- {
- // Parse number from argument
- // NOTE: Only first argument is used
- char* arg1Ptr;
- char* arg2Ptr;
- CLI_argumentIsolation( args, &arg1Ptr, &arg2Ptr );
-
- print( NL );
-
- switch ( arg1Ptr[0] )
- {
- case 's':
- case 'S':
- info_msg("Setting device as slave.");
- Connect_master = 0;
- Connect_id = 0xFF;
- break;
-
- case 'm':
- case 'M':
- default:
- info_msg("Setting device as master.");
- Connect_master = 1;
- Connect_id = 0;
- break;
- }
- }
-
- void cliFunc_connectRst( char* args )
- {
- print( NL );
- info_msg("Resetting UARTConnect state...");
- Connect_reset();
-
- // Reset node id
- Connect_id = 0xFF;
- }
-
- void cliFunc_connectSts( char* args )
- {
- print( NL );
- info_msg("UARTConnect Status");
- print( NL "Device Type:\t" );
- print( Connect_master ? "Master" : "Slave" );
- print( NL "Device Id:\t" );
- printHex( Connect_id );
- print( NL "Master <=" NL "\tStatus:\t");
- printHex( Connect_cableOkMaster );
- print( NL "\tFaults:\t");
- printHex( Connect_cableFaultsMaster );
- print( NL "\tRx:\t");
- printHex( uart1_rx_status );
- print( NL "\tTx:\t");
- printHex( uart1_tx_status );
- print( NL "Slave <=" NL "\tStatus:\t");
- printHex( Connect_cableOkSlave );
- print( NL "\tFaults:\t");
- printHex( Connect_cableFaultsSlave );
- print( NL "\tRx:\t");
- printHex( uart0_rx_status );
- print( NL "\tTx:\t");
- printHex( uart0_tx_status );
- }
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