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

* 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

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h
new file mode 100755
index 000000000..2479d28d5
--- /dev/null
+++ b/drivers/avr/i2c_master.h
@@ -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