]> git.donarmstrong.com Git - kiibohd-controller.git/commitdiff
Initial LED support for ISSI IS31FL3731C
authorJacob Alexander <haata@kiibohd.com>
Sun, 22 Mar 2015 00:12:41 +0000 (17:12 -0700)
committerJacob Alexander <haata@kiibohd.com>
Sun, 22 Mar 2015 00:12:41 +0000 (17:12 -0700)
- Not ready for advanced support yet
- Basic register and page writing support complete

Scan/ISSILed/led_scan.c [new file with mode: 0644]
Scan/ISSILed/led_scan.h [new file with mode: 0644]
Scan/ISSILed/setup.cmake [new file with mode: 0644]

diff --git a/Scan/ISSILed/led_scan.c b/Scan/ISSILed/led_scan.c
new file mode 100644 (file)
index 0000000..5bb1335
--- /dev/null
@@ -0,0 +1,706 @@
+/* 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 <led.h>
+#include <print.h>
+
+// Local Includes
+#include "led_scan.h"
+
+
+
+// ----- Defines -----
+
+#define I2C_TxBufferLength 300
+#define I2C_RxBufferLength 8
+
+#define LED_BufferLength 144
+
+
+// ----- Structs -----
+
+typedef struct I2C_Buffer {
+       uint16_t  head;
+       uint16_t  tail;
+       uint8_t   sequencePos;
+       uint16_t  size;
+       uint8_t  *buffer;
+} I2C_Buffer;
+
+typedef struct LED_Buffer {
+       uint8_t buffer[LED_BufferLength];
+} LED_Buffer;
+
+
+
+// ----- Function Declarations -----
+
+// CLI Functions
+void cliFunc_echo( char* args );
+void cliFunc_i2cRecv( char* args );
+void cliFunc_i2cSend( char* args );
+void cliFunc_ledTest( char* args );
+void cliFunc_ledZero( char* args );
+
+uint8_t I2C_TxBufferPop();
+void I2C_BufferPush( uint8_t byte, I2C_Buffer *buffer );
+uint16_t I2C_BufferLen( I2C_Buffer *buffer );
+uint8_t I2C_Send( uint8_t *data, uint8_t sendLen, uint8_t recvLen );
+
+
+
+// ----- Variables -----
+
+// Scan Module command dictionary
+CLIDict_Entry( i2cRecv,     "Send I2C sequence of bytes and expect a reply of 1 byte on the last sequence." NL "\t\tUse |'s to split sequences with a stop." );
+CLIDict_Entry( i2cSend,     "Send I2C sequence of bytes. Use |'s to split sequences with a stop." );
+CLIDict_Entry( ledTest,     "Test out the led pages." );
+CLIDict_Entry( ledZero,     "Zero out LED register pages (non-configuration)." );
+
+CLIDict_Def( ledCLIDict, "ISSI LED Module Commands" ) = {
+       CLIDict_Item( i2cRecv ),
+       CLIDict_Item( i2cSend ),
+       CLIDict_Item( ledTest ),
+       CLIDict_Item( ledZero ),
+       { 0, 0, 0 } // Null entry for dictionary end
+};
+
+
+
+// Before sending the sequence, I2C_TxBuffer_CurLen is assigned and as each byte is sent, it is decremented
+// Once I2C_TxBuffer_CurLen reaches zero, a STOP on the I2C bus is sent
+volatile uint8_t I2C_TxBufferPtr[ I2C_TxBufferLength ];
+volatile uint8_t I2C_RxBufferPtr[ I2C_TxBufferLength ];
+
+volatile I2C_Buffer I2C_TxBuffer = { 0, 0, 0, I2C_TxBufferLength, (uint8_t*)I2C_TxBufferPtr };
+volatile I2C_Buffer I2C_RxBuffer = { 0, 0, 0, I2C_RxBufferLength, (uint8_t*)I2C_RxBufferPtr };
+
+LED_Buffer LED_pageBuffer;
+
+// A bit mask determining which LEDs are enabled in the ISSI chip
+// 0x00 -> 0x11
+const uint8_t LED_ledEnableMask[] = {
+0xE8, // I2C address
+0x00, // Starting register address
+0xFF, 0xFF, // C1-1 -> C1-16
+0xFF, 0xFF, // C2-1 -> C2-16
+0xFF, 0xFF, // C3-1 -> C3-16
+0xFF, 0xFF, // C4-1 -> C4-16
+0xFF, 0xFF, // C5-1 -> C5-16
+0xFF, 0xFF, // C6-1 -> C6-16
+0xFF, 0xFF, // C7-1 -> C7-16
+0xFF, 0xFF, // C8-1 -> C8-16
+0xFF, 0xFF, // C9-1 -> C9-16
+};
+
+// XXX Pre-fill example of buffers
+const uint8_t examplePage[] = {
+0xE8, // I2C address
+0x24, // Starting register address
+0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, // C1-1 -> C1-16
+0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, // C2-1 -> C2-16
+0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, // C3-1 -> C3-16
+0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, // C4-1 -> C4-16
+0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, // C5-1 -> C5-16
+0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, // C6-1 -> C6-16
+0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, // C7-1 -> C7-16
+0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, // C8-1 -> C8-16
+0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, // C9-1 -> C9-16
+};
+
+
+
+// ----- Interrupt Functions -----
+
+void i2c0_isr()
+{
+       cli(); // Disable Interrupts
+
+       uint8_t status = I2C0_S; // Read I2C Bus status
+
+       // Master Mode Transmit
+       if ( I2C0_C1 & I2C_C1_TX )
+       {
+               // Check current use of the I2C bus
+               // Currently sending data
+               if ( I2C_TxBuffer.sequencePos > 0 )
+               {
+                       // Make sure slave sent an ACK
+                       if ( status & I2C_S_RXAK )
+                       {
+                               // NACK Detected, disable interrupt
+                               erro_print("I2C NAK detected...");
+                               I2C0_C1 = I2C_C1_IICEN;
+
+                               // Abort Tx Buffer
+                               I2C_TxBuffer.head = 0;
+                               I2C_TxBuffer.tail = 0;
+                               I2C_TxBuffer.sequencePos = 0;
+                       }
+                       else
+                       {
+                               // Transmit byte
+                               I2C0_D = I2C_TxBufferPop();
+                       }
+               }
+               // Receiving data
+               else if ( I2C_RxBuffer.sequencePos > 0 )
+               {
+                       // Master Receive, addr sent
+                       if ( status & I2C_S_ARBL )
+                       {
+                               // Arbitration Lost
+                               erro_print("Arbitration lost...");
+                               // TODO Abort Rx
+
+                               I2C0_C1 = I2C_C1_IICEN;
+                               I2C0_S = I2C_S_ARBL | I2C_S_IICIF; // Clear ARBL flag and interrupt
+                       }
+                       if ( status & I2C_S_RXAK )
+                       {
+                               // Slave Address NACK Detected, disable interrupt
+                               erro_print("Slave Address I2C NAK detected...");
+                               // TODO Abort Rx
+
+                               I2C0_C1 = I2C_C1_IICEN;
+                       }
+                       else
+                       {
+                               dbug_print("Attempting to read byte");
+                               I2C0_C1 = I2C_RxBuffer.sequencePos == 1
+                                       ? I2C_C1_IICEN | I2C_C1_IICIE | I2C_C1_MST | I2C_C1_TXAK // Single byte read
+                                       : I2C_C1_IICEN | I2C_C1_IICIE | I2C_C1_MST; // Multi-byte read
+                       }
+               }
+               else
+               {
+                       /*
+                       dbug_msg("STOP - ");
+                       printHex( I2C_BufferLen( (I2C_Buffer*)&I2C_TxBuffer ) );
+                       print(NL);
+                       */
+
+                       // Delay around STOP to make sure it actually happens...
+                       delayMicroseconds( 1 );
+                       I2C0_C1 = I2C_C1_IICEN; // Send STOP
+                       delayMicroseconds( 7 );
+
+                       // If there is another sequence, start sending
+                       if ( I2C_BufferLen( (I2C_Buffer*)&I2C_TxBuffer ) < I2C_TxBuffer.size )
+                       {
+                               // Clear status flags
+                               I2C0_S = I2C_S_IICIF | I2C_S_ARBL;
+
+                               // Wait...till the master dies
+                               while ( I2C0_S & I2C_S_BUSY );
+
+                               // Enable I2C interrupt
+                               I2C0_C1 = I2C_C1_IICEN | I2C_C1_IICIE | I2C_C1_MST | I2C_C1_TX;
+
+                               // Transmit byte
+                               I2C0_D = I2C_TxBufferPop();
+                       }
+               }
+       }
+       // Master Mode Receive
+       else
+       {
+               // XXX Do we need to handle 2nd last byte?
+               //I2C0_C1 = I2C_C1_IICEN | I2C_C1_IICIE | I2C_C1_MST | I2C_C1_TXAK; // No STOP, Rx, NAK on recv
+
+               // Last byte
+               if ( I2C_TxBuffer.sequencePos <= 1 )
+               {
+                       // Change to Tx mode
+                       I2C0_C1 = I2C_C1_IICEN | I2C_C1_MST | I2C_C1_TX;
+
+                       // Grab last byte
+                       I2C_BufferPush( I2C0_D, (I2C_Buffer*)&I2C_RxBuffer );
+
+                       delayMicroseconds( 1 ); // Should be enough time before issuing the stop
+                       I2C0_C1 = I2C_C1_IICEN; // Send STOP
+               }
+               else
+               {
+                       // Retrieve data
+                       I2C_BufferPush( I2C0_D, (I2C_Buffer*)&I2C_RxBuffer );
+               }
+       }
+
+       I2C0_S = I2C_S_IICIF; // Clear interrupt
+
+       sei(); // Re-enable Interrupts
+}
+
+
+
+// ----- Functions -----
+
+inline void I2C_setup()
+{
+       // Enable I2C internal clock
+       SIM_SCGC4 |= SIM_SCGC4_I2C0; // Bus 0
+
+       // External pull-up resistor
+       PORTB_PCR0 = PORT_PCR_ODE | PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(2);
+       PORTB_PCR1 = PORT_PCR_ODE | PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(2);
+
+       // SCL Frequency Divider
+       // 400kHz -> 120 (0x85) @ 48 MHz F_BUS
+       I2C0_F = 0x85;
+       I2C0_FLT = 4;
+       I2C0_C1 = I2C_C1_IICEN;
+       I2C0_C2 = I2C_C2_HDRS; // High drive select
+//},
+
+       // Enable I2C Interrupt
+       NVIC_ENABLE_IRQ( IRQ_I2C0 );
+}
+
+void LED_zeroPages( uint8_t startPage, uint8_t numPages, uint8_t startReg, uint8_t endReg )
+{
+       // Page Setup
+       uint8_t pageSetup[] = { 0xE8, 0xFD, 0x00 };
+
+       // Max length of a page + chip id + reg start
+       uint8_t fullPage[ 0xB4 + 2 ] = { 0 }; // Max size of page
+       fullPage[0] = 0xE8;     // Set chip id
+       fullPage[1] = startReg; // Set start reg
+
+       // Iterate through given pages, zero'ing out the given register regions
+       for ( uint8_t page = startPage; page < startPage + numPages; page++ )
+       {
+               // Set page
+               pageSetup[2] = page;
+
+               // Setup page
+               while ( I2C_Send( pageSetup, sizeof( pageSetup ), 0 ) == 0 )
+                       delay(1);
+
+               // Zero out page
+               while ( I2C_Send( fullPage, endReg - startReg + 2, 0 ) == 0 )
+                       delay(1);
+       }
+}
+
+void LED_sendPage( uint8_t *buffer, uint8_t len, uint8_t page )
+{
+       // Page Setup
+       uint8_t pageSetup[] = { 0xE8, 0xFD, page };
+
+       // Setup page
+       while ( I2C_Send( pageSetup, sizeof( pageSetup ), 0 ) == 0 )
+               delay(1);
+
+       // Write page to I2C Tx Buffer
+       while ( I2C_Send( buffer, len, 0 ) == 0 )
+               delay(1);
+
+}
+
+void LED_writeReg( uint8_t reg, uint8_t val, uint8_t page )
+{
+       // Page Setup
+       uint8_t pageSetup[] = { 0xE8, 0xFD, page };
+
+       // Reg Write Setup
+       uint8_t writeData[] = { 0xE8, reg, val };
+
+       // Setup page
+       while ( I2C_Send( pageSetup, sizeof( pageSetup ), 0 ) == 0 )
+               delay(1);
+
+       while ( I2C_Send( writeData, sizeof( writeData ), 0 ) == 0 )
+               delay(1);
+}
+
+// Setup
+inline void LED_setup()
+{
+       // Register Scan CLI dictionary
+       CLI_registerDictionary( ledCLIDict, ledCLIDictName );
+
+       // Initialize I2C
+       I2C_setup();
+
+       // Zero out Frame Registers
+       // This needs to be done before disabling the hardware shutdown (or the leds will do undefined things)
+       LED_zeroPages( 0x0B, 1, 0x00, 0x0C ); // Control Registers
+
+       // Disable Hardware shutdown of ISSI chip (pull high)
+       GPIOD_PDDR |= (1<<1);
+       PORTD_PCR1 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
+       GPIOD_PSOR |= (1<<1);
+
+       // Clear LED Pages
+       LED_zeroPages( 0x00, 8, 0x00, 0xB4 ); // LED Registers
+
+       // Enable LEDs based upon mask
+       LED_sendPage( (uint8_t*)LED_ledEnableMask, sizeof( LED_ledEnableMask ), 0 );
+
+       // Disable Software shutdown of ISSI chip
+       LED_writeReg( 0x0A, 0x01, 0x0B );
+}
+
+
+inline uint8_t I2C_BufferCopy( uint8_t *data, uint8_t sendLen, uint8_t recvLen, I2C_Buffer *buffer )
+{
+       uint8_t reTurn = 0;
+
+       // If sendLen is greater than buffer fail right away
+       if ( sendLen > buffer->size )
+               return 0;
+
+       // Calculate new tail to determine if buffer has enough space
+       // The first element specifies the expected number of bytes from the slave (+1)
+       // The second element in the new buffer is the length of the buffer sequence (+1)
+       uint16_t newTail = buffer->tail + sendLen + 2;
+       if ( newTail >= buffer->size )
+               newTail -= buffer->size;
+
+       if ( I2C_BufferLen( buffer ) < sendLen + 2 )
+               return 0;
+
+/*
+       print("|");
+       printHex( sendLen + 2 );
+       print("|");
+       printHex( *tail );
+       print("@");
+       printHex( newTail );
+       print("@");
+*/
+
+       // If buffer is clean, return 1, otherwise 2
+       reTurn = buffer->head == buffer->tail ? 1 : 2;
+
+       // Add to buffer, already know there is enough room (simplifies adding logic)
+       uint8_t bufferHeaderPos = 0;
+       for ( uint16_t c = 0; c < sendLen; c++ )
+       {
+               // Add data to buffer
+               switch ( bufferHeaderPos )
+               {
+               case 0:
+                       buffer->buffer[ buffer->tail ] = recvLen;
+                       bufferHeaderPos++;
+                       c--;
+                       break;
+
+               case 1:
+                       buffer->buffer[ buffer->tail ] = sendLen;
+                       bufferHeaderPos++;
+                       c--;
+                       break;
+
+               default:
+                       buffer->buffer[ buffer->tail ] = data[ c ];
+                       break;
+               }
+
+               // Check for wrap-around case
+               if ( buffer->tail + 1 >= buffer->size )
+               {
+                       buffer->tail = 0;
+               }
+               // Normal case
+               else
+               {
+                       buffer->tail++;
+               }
+       }
+
+       return reTurn;
+}
+
+
+inline uint16_t I2C_BufferLen( I2C_Buffer *buffer )
+{
+       // Tail >= Head
+       if ( buffer->tail >= buffer->head )
+               return buffer->head + buffer->size - buffer->tail;
+
+       // Head > Tail
+       return buffer->head - buffer->tail;
+}
+
+
+void I2C_BufferPush( uint8_t byte, I2C_Buffer *buffer )
+{
+       // Make sure buffer isn't full
+       if ( buffer->tail + 1 == buffer->head || ( buffer->head > buffer->tail && buffer->tail + 1 - buffer->size == buffer->head ) )
+       {
+               warn_msg("I2C_BufferPush failed, buffer full: ");
+               printHex( byte );
+               print( NL );
+               return;
+       }
+
+       // Check for wrap-around case
+       if ( buffer->tail + 1 >= buffer->size )
+       {
+               buffer->tail = 0;
+       }
+       // Normal case
+       else
+       {
+               buffer->tail++;
+       }
+
+       // Add byte to buffer
+       buffer->buffer[ buffer->tail ] = byte;
+}
+
+
+uint8_t I2C_TxBufferPop()
+{
+       // Return 0xFF if no buffer left (do not rely on this)
+       if ( I2C_BufferLen( (I2C_Buffer*)&I2C_TxBuffer ) >= I2C_TxBuffer.size )
+       {
+               erro_msg("No buffer to pop an entry from... ");
+               printHex( I2C_TxBuffer.head );
+               print(" ");
+               printHex( I2C_TxBuffer.tail );
+               print(" ");
+               printHex( I2C_TxBuffer.sequencePos );
+               print(NL);
+               return 0xFF;
+       }
+
+       // If there is currently no sequence being sent, the first entry in the RingBuffer is the length
+       if ( I2C_TxBuffer.sequencePos == 0 )
+       {
+               I2C_TxBuffer.sequencePos = 0xFF; // So this doesn't become an infinite loop
+               I2C_RxBuffer.sequencePos = I2C_TxBufferPop();
+               I2C_TxBuffer.sequencePos = I2C_TxBufferPop();
+       }
+
+       uint8_t data = I2C_TxBuffer.buffer[ I2C_TxBuffer.head ];
+
+       // Prune head
+       I2C_TxBuffer.head++;
+
+       // Wrap-around case
+       if ( I2C_TxBuffer.head >= I2C_TxBuffer.size )
+               I2C_TxBuffer.head = 0;
+
+       // Decrement buffer sequence (until next stop will be sent)
+       I2C_TxBuffer.sequencePos--;
+
+       /*
+       dbug_msg("Popping: ");
+       printHex( data );
+       print(" ");
+       printHex( I2C_TxBuffer.head );
+       print(" ");
+       printHex( I2C_TxBuffer.tail );
+       print(" ");
+       printHex( I2C_TxBuffer.sequencePos );
+       print(NL);
+       */
+       return data;
+}
+
+
+uint8_t I2C_Send( uint8_t *data, uint8_t sendLen, uint8_t recvLen )
+{
+       // Check head and tail pointers
+       // If full, return 0
+       // If empty, start up I2C Master Tx
+       // If buffer is non-empty and non-full, just append to the buffer
+       switch ( I2C_BufferCopy( data, sendLen, recvLen, (I2C_Buffer*)&I2C_TxBuffer ) )
+       {
+       // Not enough buffer space...
+       case 0:
+               /*
+               erro_msg("Not enough Tx buffer space... ");
+               printHex( I2C_TxBuffer.head );
+               print(":");
+               printHex( I2C_TxBuffer.tail );
+               print("+");
+               printHex( sendLen );
+               print("|");
+               printHex( I2C_TxBuffer.size );
+               print( NL );
+               */
+               return 0;
+
+       // Empty buffer, initialize I2C
+       case 1:
+               // Clear status flags
+               I2C0_S = I2C_S_IICIF | I2C_S_ARBL;
+
+               // Check to see if we already have control of the bus
+               if ( I2C0_C1 & I2C_C1_MST )
+               {
+                       // Already the master (ah yeah), send a repeated start
+                       I2C0_C1 = I2C_C1_IICEN | I2C_C1_MST | I2C_C1_RSTA | I2C_C1_TX;
+               }
+               // Otherwise, seize control
+               else
+               {
+                       // Wait...till the master dies
+                       while ( I2C0_S & I2C_S_BUSY );
+
+                       // Now we're the master (ah yisss), get ready to send stuffs
+                       I2C0_C1 = I2C_C1_IICEN | I2C_C1_MST | I2C_C1_TX;
+               }
+
+               // Enable I2C interrupt
+               I2C0_C1 = I2C_C1_IICEN | I2C_C1_IICIE | I2C_C1_MST | I2C_C1_TX;
+
+               // Depending on what type of transfer, the first byte is configured for R or W
+               I2C0_D = I2C_TxBufferPop();
+
+               return 1;
+       }
+
+       // Dirty buffer, I2C already initialized
+       return 2;
+}
+
+
+
+// LED State processing loop
+inline uint8_t LED_scan()
+{
+
+       // I2C Busy
+       // S & I2C_S_BUSY
+       //I2C_S_BUSY
+
+       return 0;
+}
+
+
+
+// ----- CLI Command Functions -----
+
+void cliFunc_i2cSend( char* args )
+{
+       char* curArgs;
+       char* arg1Ptr;
+       char* arg2Ptr = args;
+
+       // Buffer used after interpretting the args, will be sent to I2C functions
+       // NOTE: Limited to 8 bytes currently (can be increased if necessary
+       #define i2cSend_BuffLenMax 8
+       uint8_t buffer[ i2cSend_BuffLenMax ];
+       uint8_t bufferLen = 0;
+
+       // No \r\n by default after the command is entered
+       print( NL );
+       info_msg("Sending: ");
+
+       // Parse args until a \0 is found
+       while ( bufferLen < i2cSend_BuffLenMax )
+       {
+               curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
+               CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
+
+               // Stop processing args if no more are found
+               if ( *arg1Ptr == '\0' )
+                       break;
+
+               // If | is found, end sequence and start new one
+               if ( *arg1Ptr == '|' )
+               {
+                       print("| ");
+                       I2C_Send( buffer, bufferLen, 0 );
+                       bufferLen = 0;
+                       continue;
+               }
+
+               // Interpret the argument
+               buffer[ bufferLen++ ] = (uint8_t)numToInt( arg1Ptr );
+
+               // Print out the arg
+               dPrint( arg1Ptr );
+               print(" ");
+       }
+
+       print( NL );
+
+       I2C_Send( buffer, bufferLen, 0 );
+}
+
+void cliFunc_i2cRecv( char* args )
+{
+       char* curArgs;
+       char* arg1Ptr;
+       char* arg2Ptr = args;
+
+       // Buffer used after interpretting the args, will be sent to I2C functions
+       // NOTE: Limited to 8 bytes currently (can be increased if necessary
+       #define i2cSend_BuffLenMax 8
+       uint8_t buffer[ i2cSend_BuffLenMax ];
+       uint8_t bufferLen = 0;
+
+       // No \r\n by default after the command is entered
+       print( NL );
+       info_msg("Sending: ");
+
+       // Parse args until a \0 is found
+       while ( bufferLen < i2cSend_BuffLenMax )
+       {
+               curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
+               CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
+
+               // Stop processing args if no more are found
+               if ( *arg1Ptr == '\0' )
+                       break;
+
+               // If | is found, end sequence and start new one
+               if ( *arg1Ptr == '|' )
+               {
+                       print("| ");
+                       I2C_Send( buffer, bufferLen, 0 );
+                       bufferLen = 0;
+                       continue;
+               }
+
+               // Interpret the argument
+               buffer[ bufferLen++ ] = (uint8_t)numToInt( arg1Ptr );
+
+               // Print out the arg
+               dPrint( arg1Ptr );
+               print(" ");
+       }
+
+       print( NL );
+
+       I2C_Send( buffer, bufferLen, 1 ); // Only 1 byte is ever read at a time with the ISSI chip
+}
+
+void cliFunc_ledTest( char* args )
+{
+       print( NL ); // No \r\n by default after the command is entered
+       LED_sendPage( (uint8_t*)examplePage, sizeof( examplePage ), 0 );
+}
+
+void cliFunc_ledZero( char* args )
+{
+       print( NL ); // No \r\n by default after the command is entered
+       LED_zeroPages( 0x00, 8, 0x24, 0xB4 ); // Only PWMs
+}
+
diff --git a/Scan/ISSILed/led_scan.h b/Scan/ISSILed/led_scan.h
new file mode 100644 (file)
index 0000000..a948a97
--- /dev/null
@@ -0,0 +1,34 @@
+/* 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/>.
+ */
+
+#ifndef __LED_SCAN_H
+#define __LED_SCAN_H
+
+// ----- Includes -----
+
+// Compiler Includes
+#include <stdint.h>
+
+
+
+// ----- Functions -----
+
+void LED_setup();
+uint8_t LED_scan();
+
+
+#endif // __LED_SCAN_H
+
diff --git a/Scan/ISSILed/setup.cmake b/Scan/ISSILed/setup.cmake
new file mode 100644 (file)
index 0000000..c2cef01
--- /dev/null
@@ -0,0 +1,30 @@
+###| CMake Kiibohd Controller Scan Module |###
+#
+# Written by Jacob Alexander in 2014-2015 for the Kiibohd Controller
+#
+# Released into the Public Domain
+#
+###
+
+
+###
+# Sub-module flag, cannot be included stand-alone
+#
+set ( SubModule 1 )
+
+
+###
+# Module C files
+#
+set ( Module_SRCS
+       led_scan.c
+)
+
+
+###
+# Compiler Family Compatibility
+#
+set ( ModuleCompatibility
+       arm
+)
+