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Rgb matrix fixes, I2C library can now retry if it has failed (#2943)

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* Added Modular keyboards L,R and NUM

Created code modules for the 3 modules of the modular keyboard.
Original idea by MechboardsUK. Uses i2c implementation similar to lets
split

* Remove modular from master

This is to fix incorrect branching

* General fixes for RGB_matrix

- Complited speed support for all effects
- Fixed raindrop effects to initialized after toggle
- Fixed raindrop effects to use all available LEDs
- Fixed effect step reverse function
- Moved RGB_MATRIX_SOLID_REACTIVE under correct flag

* Documentation update for RGBmatrix

* More doc updates

* I2C library can now retry if it has failed

- Replaced the original TWIlib by LFKeyboard's modified version
- Allows for an extra argument on TWITransmitData, if blocking is set to 1 function will retry to transmit on failure. Good for noisy boards.

* RGB Matrix, use alternative I2C library

TWIlib seems to be hanging for me sometimes probably due to ISR routine. I have used i2c_master as a good alternative.

Note: this commit is for Wilba6582 to verify before merge

* Update rgb_matrix.c

* RGB matrix cleanup

- Remove TWIlib
This commit is contained in:
yiancar 2018-05-14 15:17:24 +01:00 committed by Jack Humbert
parent f42ec8aa86
commit a98a91cf1b
7 changed files with 184 additions and 343 deletions
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2
common_features.mk
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@ -117,7 +117,7 @@ endif
ifeq ($(strip $(RGB_MATRIX_ENABLE)), yes) ifeq ($(strip $(RGB_MATRIX_ENABLE)), yes)
OPT_DEFS += -DRGB_MATRIX_ENABLE OPT_DEFS += -DRGB_MATRIX_ENABLE
SRC += is31fl3731.c SRC += is31fl3731.c
SRC += TWIlib.c SRC += i2c_master.c
SRC += $(QUANTUM_DIR)/color.c SRC += $(QUANTUM_DIR)/color.c
SRC += $(QUANTUM_DIR)/rgb_matrix.c SRC += $(QUANTUM_DIR)/rgb_matrix.c
CIE1931_CURVE = yes CIE1931_CURVE = yes

232
drivers/avr/TWIlib.c
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@ -1,232 +0,0 @@
/*
* TWIlib.c
*
* Created: 6/01/2014 10:41:33 PM
* Author: Chris Herring
* http://www.chrisherring.net/all/tutorial-interrupt-driven-twi-interface-for-avr-part1/
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include "TWIlib.h"
#include "util/delay.h"
void TWIInit()
{
TWIInfo.mode = Ready;
TWIInfo.errorCode = 0xFF;
TWIInfo.repStart = 0;
// Set pre-scalers (no pre-scaling)
TWSR = 0;
// Set bit rate
TWBR = ((F_CPU / TWI_FREQ) - 16) / 2;
// Enable TWI and interrupt
TWCR = (1 << TWIE) | (1 << TWEN);
}
uint8_t isTWIReady()
{
if ( (TWIInfo.mode == Ready) | (TWIInfo.mode == RepeatedStartSent) )
{
return 1;
}
else
{
return 0;
}
}
uint8_t TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart)
{
if (dataLen <= TXMAXBUFLEN)
{
// Wait until ready
while (!isTWIReady()) {_delay_us(1);}
// Set repeated start mode
TWIInfo.repStart = repStart;
// Copy data into the transmit buffer
uint8_t *data = (uint8_t *)TXdata;
for (int i = 0; i < dataLen; i++)
{
TWITransmitBuffer[i] = data[i];
}
// Copy transmit info to global variables
TXBuffLen = dataLen;
TXBuffIndex = 0;
// If a repeated start has been sent, then devices are already listening for an address
// and another start does not need to be sent.
if (TWIInfo.mode == RepeatedStartSent)
{
TWIInfo.mode = Initializing;
TWDR = TWITransmitBuffer[TXBuffIndex++]; // Load data to transmit buffer
TWISendTransmit(); // Send the data
}
else // Otherwise, just send the normal start signal to begin transmission.
{
TWIInfo.mode = Initializing;
TWISendStart();
}
}
else
{
return 1; // return an error if data length is longer than buffer
}
return 0;
}
uint8_t TWIReadData(uint8_t TWIaddr, uint8_t bytesToRead, uint8_t repStart)
{
// Check if number of bytes to read can fit in the RXbuffer
if (bytesToRead < RXMAXBUFLEN)
{
// Reset buffer index and set RXBuffLen to the number of bytes to read
RXBuffIndex = 0;
RXBuffLen = bytesToRead;
// Create the one value array for the address to be transmitted
uint8_t TXdata[1];
// Shift the address and AND a 1 into the read write bit (set to write mode)
TXdata[0] = (TWIaddr << 1) | 0x01;
// Use the TWITransmitData function to initialize the transfer and address the slave
TWITransmitData(TXdata, 1, repStart);
}
else
{
return 0;
}
return 1;
}
ISR (TWI_vect)
{
switch (TWI_STATUS)
{
// ----\/ ---- MASTER TRANSMITTER OR WRITING ADDRESS ----\/ ---- //
case TWI_MT_SLAW_ACK: // SLA+W transmitted and ACK received
// Set mode to Master Transmitter
TWIInfo.mode = MasterTransmitter;
case TWI_START_SENT: // Start condition has been transmitted
case TWI_MT_DATA_ACK: // Data byte has been transmitted, ACK received
if (TXBuffIndex < TXBuffLen) // If there is more data to send
{
TWDR = TWITransmitBuffer[TXBuffIndex++]; // Load data to transmit buffer
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO;
TWISendTransmit(); // Send the data
}
// This transmission is complete however do not release bus yet
else if (TWIInfo.repStart)
{
TWIInfo.errorCode = 0xFF;
TWISendStart();
}
// All transmissions are complete, exit
else
{
TWIInfo.mode = Ready;
TWIInfo.errorCode = 0xFF;
TWISendStop();
}
break;
// ----\/ ---- MASTER RECEIVER ----\/ ---- //
case TWI_MR_SLAR_ACK: // SLA+R has been transmitted, ACK has been received
// Switch to Master Receiver mode
TWIInfo.mode = MasterReceiver;
// If there is more than one byte to be read, receive data byte and return an ACK
if (RXBuffIndex < RXBuffLen-1)
{
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO;
TWISendACK();
}
// Otherwise when a data byte (the only data byte) is received, return NACK
else
{
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO;
TWISendNACK();
}
break;
case TWI_MR_DATA_ACK: // Data has been received, ACK has been transmitted.
/// -- HANDLE DATA BYTE --- ///
TWIReceiveBuffer[RXBuffIndex++] = TWDR;
// If there is more than one byte to be read, receive data byte and return an ACK
if (RXBuffIndex < RXBuffLen-1)
{
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO;
TWISendACK();
}
// Otherwise when a data byte (the only data byte) is received, return NACK
else
{
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO;
TWISendNACK();
}
break;
case TWI_MR_DATA_NACK: // Data byte has been received, NACK has been transmitted. End of transmission.
/// -- HANDLE DATA BYTE --- ///
TWIReceiveBuffer[RXBuffIndex++] = TWDR;
// This transmission is complete however do not release bus yet
if (TWIInfo.repStart)
{
TWIInfo.errorCode = 0xFF;
TWISendStart();
}
// All transmissions are complete, exit
else
{
TWIInfo.mode = Ready;
TWIInfo.errorCode = 0xFF;
TWISendStop();
}
break;
// ----\/ ---- MT and MR common ----\/ ---- //
case TWI_MR_SLAR_NACK: // SLA+R transmitted, NACK received
case TWI_MT_SLAW_NACK: // SLA+W transmitted, NACK received
case TWI_MT_DATA_NACK: // Data byte has been transmitted, NACK received
case TWI_LOST_ARBIT: // Arbitration has been lost
// Return error and send stop and set mode to ready
if (TWIInfo.repStart)
{
TWIInfo.errorCode = TWI_STATUS;
TWISendStart();
}
// All transmissions are complete, exit
else
{
TWIInfo.mode = Ready;
TWIInfo.errorCode = TWI_STATUS;
TWISendStop();
}
break;
case TWI_REP_START_SENT: // Repeated start has been transmitted
// Set the mode but DO NOT clear TWINT as the next data is not yet ready
TWIInfo.mode = RepeatedStartSent;
break;
// ----\/ ---- SLAVE RECEIVER ----\/ ---- //
// TODO IMPLEMENT SLAVE RECEIVER FUNCTIONALITY
// ----\/ ---- SLAVE TRANSMITTER ----\/ ---- //
// TODO IMPLEMENT SLAVE TRANSMITTER FUNCTIONALITY
// ----\/ ---- MISCELLANEOUS STATES ----\/ ---- //
case TWI_NO_RELEVANT_INFO: // It is not really possible to get into this ISR on this condition
// Rather, it is there to be manually set between operations
break;
case TWI_ILLEGAL_START_STOP: // Illegal START/STOP, abort and return error
TWIInfo.errorCode = TWI_ILLEGAL_START_STOP;
TWIInfo.mode = Ready;
TWISendStop();
break;
}
}

82
drivers/avr/TWIlib.h
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@ -1,82 +0,0 @@
/*
* TWIlib.h
*
* Created: 6/01/2014 10:38:42 PM
* Author: Chris Herring
* http://www.chrisherring.net/all/tutorial-interrupt-driven-twi-interface-for-avr-part1/
*/
#ifndef TWILIB_H_
#define TWILIB_H_
// TWI bit rate (was 100000)
#define TWI_FREQ 400000
// Get TWI status
#define TWI_STATUS (TWSR & 0xF8)
// Transmit buffer length
#define TXMAXBUFLEN 20
// Receive buffer length
#define RXMAXBUFLEN 20
// Global transmit buffer
uint8_t TWITransmitBuffer[TXMAXBUFLEN];
// Global receive buffer
volatile uint8_t TWIReceiveBuffer[RXMAXBUFLEN];
// Buffer indexes
volatile int TXBuffIndex; // Index of the transmit buffer. Is volatile, can change at any time.
int RXBuffIndex; // Current index in the receive buffer
// Buffer lengths
int TXBuffLen; // The total length of the transmit buffer
int RXBuffLen; // The total number of bytes to read (should be less than RXMAXBUFFLEN)
typedef enum {
Ready,
Initializing,
RepeatedStartSent,
MasterTransmitter,
MasterReceiver,
SlaceTransmitter,
SlaveReciever
} TWIMode;
typedef struct TWIInfoStruct{
TWIMode mode;
uint8_t errorCode;
uint8_t repStart;
}TWIInfoStruct;
TWIInfoStruct TWIInfo;
// TWI Status Codes
#define TWI_START_SENT 0x08 // Start sent
#define TWI_REP_START_SENT 0x10 // Repeated Start sent
// Master Transmitter Mode
#define TWI_MT_SLAW_ACK 0x18 // SLA+W sent and ACK received
#define TWI_MT_SLAW_NACK 0x20 // SLA+W sent and NACK received
#define TWI_MT_DATA_ACK 0x28 // DATA sent and ACK received
#define TWI_MT_DATA_NACK 0x30 // DATA sent and NACK received
// Master Receiver Mode
#define TWI_MR_SLAR_ACK 0x40 // SLA+R sent, ACK received
#define TWI_MR_SLAR_NACK 0x48 // SLA+R sent, NACK received
#define TWI_MR_DATA_ACK 0x50 // Data received, ACK returned
#define TWI_MR_DATA_NACK 0x58 // Data received, NACK returned
// Miscellaneous States
#define TWI_LOST_ARBIT 0x38 // Arbitration has been lost
#define TWI_NO_RELEVANT_INFO 0xF8 // No relevant information available
#define TWI_ILLEGAL_START_STOP 0x00 // Illegal START or STOP condition has been detected
#define TWI_SUCCESS 0xFF // Successful transfer, this state is impossible from TWSR as bit2 is 0 and read only
#define TWISendStart() (TWCR = (1<<TWINT)|(1<<TWSTA)|(1<<TWEN)|(1<<TWIE)) // Send the START signal, enable interrupts and TWI, clear TWINT flag to resume transfer.
#define TWISendStop() (TWCR = (1<<TWINT)|(1<<TWSTO)|(1<<TWEN)|(1<<TWIE)) // Send the STOP signal, enable interrupts and TWI, clear TWINT flag.
#define TWISendTransmit() (TWCR = (1<<TWINT)|(1<<TWEN)|(1<<TWIE)) // Used to resume a transfer, clear TWINT and ensure that TWI and interrupts are enabled.
#define TWISendACK() (TWCR = (1<<TWINT)|(1<<TWEN)|(1<<TWIE)|(1<<TWEA)) // FOR MR mode. Resume a transfer, ensure that TWI and interrupts are enabled and respond with an ACK if the device is addressed as a slave or after it receives a byte.
#define TWISendNACK() (TWCR = (1<<TWINT)|(1<<TWEN)|(1<<TWIE)) // FOR MR mode. Resume a transfer, ensure that TWI and interrupts are enabled but DO NOT respond with an ACK if the device is addressed as a slave or after it receives a byte.
// Function declarations
uint8_t TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart);
void TWIInit(void);
uint8_t TWIReadData(uint8_t TWIaddr, uint8_t bytesToRead, uint8_t repStart);
uint8_t isTWIReady(void);
#endif // TWICOMMS_H_

149
drivers/avr/i2c_master.c Executable file
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@ -0,0 +1,149 @@
/* Library made by: g4lvanix
* Github repository: https://github.com/g4lvanix/I2C-master-lib
*/
#include <avr/io.h>
#include <util/twi.h>
#include "i2c_master.h"
#define F_SCL 400000UL // SCL frequency
#define Prescaler 1
#define TWBR_val ((((F_CPU / F_SCL) / Prescaler) - 16 ) / 2)
void i2c_init(void)
{
TWBR = (uint8_t)TWBR_val;
}
uint8_t i2c_start(uint8_t address)
{
// reset TWI control register
TWCR = 0;
// transmit START condition
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
// wait for end of transmission
while( !(TWCR & (1<<TWINT)) );
// check if the start condition was successfully transmitted
if((TWSR & 0xF8) != TW_START){ return 1; }
// load slave address into data register
TWDR = address;
// start transmission of address
TWCR = (1<<TWINT) | (1<<TWEN);
// wait for end of transmission
while( !(TWCR & (1<<TWINT)) );
// check if the device has acknowledged the READ / WRITE mode
uint8_t twst = TW_STATUS & 0xF8;
if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
return 0;
}
uint8_t i2c_write(uint8_t data)
{
// load data into data register
TWDR = data;
// start transmission of data
TWCR = (1<<TWINT) | (1<<TWEN);
// wait for end of transmission
while( !(TWCR & (1<<TWINT)) );
if( (TWSR & 0xF8) != TW_MT_DATA_ACK ){ return 1; }
return 0;
}
uint8_t i2c_read_ack(void)
{
// start TWI module and acknowledge data after reception
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
// wait for end of transmission
while( !(TWCR & (1<<TWINT)) );
// return received data from TWDR
return TWDR;
}
uint8_t i2c_read_nack(void)
{
// start receiving without acknowledging reception
TWCR = (1<<TWINT) | (1<<TWEN);
// wait for end of transmission
while( !(TWCR & (1<<TWINT)) );
// return received data from TWDR
return TWDR;
}
uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length)
{
if (i2c_start(address | I2C_WRITE)) return 1;
for (uint16_t i = 0; i < length; i++)
{
if (i2c_write(data[i])) return 1;
}
i2c_stop();
return 0;
}
uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length)
{
if (i2c_start(address | I2C_READ)) return 1;
for (uint16_t i = 0; i < (length-1); i++)
{
data[i] = i2c_read_ack();
}
data[(length-1)] = i2c_read_nack();
i2c_stop();
return 0;
}
uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length)
{
if (i2c_start(devaddr | 0x00)) return 1;
i2c_write(regaddr);
for (uint16_t i = 0; i < length; i++)
{
if (i2c_write(data[i])) return 1;
}
i2c_stop();
return 0;
}
uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length)
{
if (i2c_start(devaddr)) return 1;
i2c_write(regaddr);
if (i2c_start(devaddr | 0x01)) return 1;
for (uint16_t i = 0; i < (length-1); i++)
{
data[i] = i2c_read_ack();
}
data[(length-1)] = i2c_read_nack();
i2c_stop();
return 0;
}
void i2c_stop(void)
{
// transmit STOP condition
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
}

22
drivers/avr/i2c_master.h Executable file
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@ -0,0 +1,22 @@
/* Library made by: g4lvanix
* Github repository: https://github.com/g4lvanix/I2C-master-lib
*/
#ifndef I2C_MASTER_H
#define I2C_MASTER_H
#define I2C_READ 0x01
#define I2C_WRITE 0x00
void i2c_init(void);
uint8_t i2c_start(uint8_t address);
uint8_t i2c_write(uint8_t data);
uint8_t i2c_read_ack(void);
uint8_t i2c_read_nack(void);
uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length);
uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
void i2c_stop(void);
#endif // I2C_MASTER_H

34
drivers/avr/is31fl3731.c
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@ -20,7 +20,7 @@
#include <avr/io.h> #include <avr/io.h>
#include <util/delay.h> #include <util/delay.h>
#include <string.h> #include <string.h>
#include "TWIlib.h" #include "i2c_master.h"
#include "progmem.h" #include "progmem.h"
// This is a 7-bit address, that gets left-shifted and bit 0 // This is a 7-bit address, that gets left-shifted and bit 0
@ -50,7 +50,7 @@
#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine' #define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine'
// Transfer buffer for TWITransmitData() // Transfer buffer for TWITransmitData()
uint8_t g_twi_transfer_buffer[TXMAXBUFLEN]; uint8_t g_twi_transfer_buffer[20];
// These buffers match the IS31FL3731 PWM registers 0x24-0xB3. // These buffers match the IS31FL3731 PWM registers 0x24-0xB3.
// Storing them like this is optimal for I2C transfers to the registers. // Storing them like this is optimal for I2C transfers to the registers.
@ -80,17 +80,11 @@ bool g_led_control_registers_update_required = false;
void IS31FL3731_write_register( uint8_t addr, uint8_t reg, uint8_t data ) void IS31FL3731_write_register( uint8_t addr, uint8_t reg, uint8_t data )
{ {
g_twi_transfer_buffer[0] = (addr << 1) | 0x00; g_twi_transfer_buffer[0] = reg;
g_twi_transfer_buffer[1] = reg; g_twi_transfer_buffer[1] = data;
g_twi_transfer_buffer[2] = data;
// Set the error code to have no relevant information //Transmit data until succesful
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO; while(i2c_transmit(addr << 1, g_twi_transfer_buffer,2) != 0);
// Continuously attempt to transmit data until a successful transmission occurs
//while ( TWIInfo.errorCode != 0xFF )
//{
TWITransmitData( g_twi_transfer_buffer, 3, 0 );
//}
} }
void IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer ) void IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer )
@ -100,29 +94,21 @@ void IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer )
// transmit PWM registers in 9 transfers of 16 bytes // transmit PWM registers in 9 transfers of 16 bytes
// g_twi_transfer_buffer[] is 20 bytes // g_twi_transfer_buffer[] is 20 bytes
// set the I2C address
g_twi_transfer_buffer[0] = (addr << 1) | 0x00;
// iterate over the pwm_buffer contents at 16 byte intervals // iterate over the pwm_buffer contents at 16 byte intervals
for ( int i = 0; i < 144; i += 16 ) for ( int i = 0; i < 144; i += 16 )
{ {
// set the first register, e.g. 0x24, 0x34, 0x44, etc. // set the first register, e.g. 0x24, 0x34, 0x44, etc.
g_twi_transfer_buffer[1] = 0x24 + i; g_twi_transfer_buffer[0] = 0x24 + i;
// copy the data from i to i+15 // copy the data from i to i+15
// device will auto-increment register for data after the first byte // device will auto-increment register for data after the first byte
// thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer // thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer
for ( int j = 0; j < 16; j++ ) for ( int j = 0; j < 16; j++ )
{ {
g_twi_transfer_buffer[2 + j] = pwm_buffer[i + j]; g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
} }
// Set the error code to have no relevant information //Transmit buffer until succesful
TWIInfo.errorCode = TWI_NO_RELEVANT_INFO; while(i2c_transmit(addr << 1, g_twi_transfer_buffer,17) != 0);
// Continuously attempt to transmit data until a successful transmission occurs
while ( TWIInfo.errorCode != 0xFF )
{
TWITransmitData( g_twi_transfer_buffer, 16 + 2, 0 );
}
} }
} }

6
quantum/rgb_matrix.c
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@ -18,7 +18,7 @@
#include "rgb_matrix.h" #include "rgb_matrix.h"
#include <avr/io.h> #include <avr/io.h>
#include "TWIlib.h" #include "i2c_master.h"
#include <util/delay.h> #include <util/delay.h>
#include <avr/interrupt.h> #include <avr/interrupt.h>
#include "progmem.h" #include "progmem.h"
@ -722,10 +722,8 @@ void rgb_matrix_indicators_user(void) {}
// } // }
void rgb_matrix_init_drivers(void) { void rgb_matrix_init_drivers(void) {
//sei();
// Initialize TWI // Initialize TWI
TWIInit(); i2c_init();
IS31FL3731_init( DRIVER_ADDR_1 ); IS31FL3731_init( DRIVER_ADDR_1 );
IS31FL3731_init( DRIVER_ADDR_2 ); IS31FL3731_init( DRIVER_ADDR_2 );