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authorLegonut <legonut3@gmail.com>2018-12-04 21:15:52 -0500
committerDrashna Jaelre <drashna@live.com>2018-12-04 18:15:52 -0800
commit8a330b33ff41ffc1ec3f8fa39722e93115ea3f0f (patch)
tree3ef91766a6063422fb7cd884c377959fa6b2ab39 /keyboards/sol/i2c.h
parent6d0dc910d92bc381d3cce9ea712aa47ae40ddf15 (diff)
Keyboard: Add new keyboard "Sol" from RGBKB (#4497)
* Add final RGBKB Sol firmware * Apply suggestions from code review Apply most of the changes noroadsleft has suggested Co-Authored-By: Legonut <legonut3@gmail.com> * Cleanup readme * Cleanup keymaps per @noroadslefts suggestions * Remove eeproms, use set_single_persistent_default_layer * Suggestions from @noroadsleft and @drashna some small cleanup * Change RGB_SMOD to RGB_RMOD * fix RGB_SMOD * Apply suggestions from code review Remove redundant lines Co-Authored-By: Legonut <legonut3@gmail.com>
Diffstat (limited to 'keyboards/sol/i2c.h')
-rw-r--r--keyboards/sol/i2c.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/keyboards/sol/i2c.h b/keyboards/sol/i2c.h
new file mode 100644
index 0000000000..47cf6bd1b2
--- /dev/null
+++ b/keyboards/sol/i2c.h
@@ -0,0 +1,49 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency 400kHz
+#define SCL_CLOCK 400000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+
+static inline unsigned char i2c_start_read(unsigned char addr) {
+ return i2c_master_start((addr << 1) | I2C_READ);
+}
+
+static inline unsigned char i2c_start_write(unsigned char addr) {
+ return i2c_master_start((addr << 1) | I2C_WRITE);
+}
+
+// from SSD1306 scrips
+extern unsigned char i2c_rep_start(unsigned char addr);
+extern void i2c_start_wait(unsigned char addr);
+extern unsigned char i2c_readAck(void);
+extern unsigned char i2c_readNak(void);
+extern unsigned char i2c_read(unsigned char ack);
+
+#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
+
+#endif