From 65317a3a020c0b0261849fb4c40d3aae175ac337 Mon Sep 17 00:00:00 2001 From: ishtob Date: Wed, 22 Mar 2017 15:04:11 -0400 Subject: Added OLED SSD1306 support to I2C --- keyboards/lets_split/common/glcdfont.c | 276 ++++++++++++++++++ keyboards/lets_split/i2c.c | 94 +++++- keyboards/lets_split/i2c.h | 20 +- keyboards/lets_split/matrix.c | 7 +- keyboards/lets_split/rules.mk | 15 +- keyboards/lets_split/split_util.c | 7 +- keyboards/lets_split/split_util.h | 2 + keyboards/lets_split/ssd1306.c | 508 +++++++++++++++++++++++++++++++++ 8 files changed, 908 insertions(+), 21 deletions(-) create mode 100644 keyboards/lets_split/common/glcdfont.c create mode 100644 keyboards/lets_split/ssd1306.c diff --git a/keyboards/lets_split/common/glcdfont.c b/keyboards/lets_split/common/glcdfont.c new file mode 100644 index 0000000000..6f88bd23a7 --- /dev/null +++ b/keyboards/lets_split/common/glcdfont.c @@ -0,0 +1,276 @@ +// This is the 'classic' fixed-space bitmap font for Adafruit_GFX since 1.0. +// See gfxfont.h for newer custom bitmap font info. + +#ifndef FONT5X7_H +#define FONT5X7_H + +#ifdef __AVR__ + #include + #include +#elif defined(ESP8266) + #include +#else + #define PROGMEM +#endif + +// Standard ASCII 5x7 font + +static const unsigned char font[] PROGMEM = { + 0x00, 0x00, 0x00, 0x00, 0x00, + 0x3E, 0x5B, 0x4F, 0x5B, 0x3E, + 0x3E, 0x6B, 0x4F, 0x6B, 0x3E, + 0x1C, 0x3E, 0x7C, 0x3E, 0x1C, + 0x18, 0x3C, 0x7E, 0x3C, 0x18, + 0x1C, 0x57, 0x7D, 0x57, 0x1C, + 0x1C, 0x5E, 0x7F, 0x5E, 0x1C, + 0x00, 0x18, 0x3C, 0x18, 0x00, + 0xFF, 0xE7, 0xC3, 0xE7, 0xFF, + 0x00, 0x18, 0x24, 0x18, 0x00, + 0xFF, 0xE7, 0xDB, 0xE7, 0xFF, + 0x30, 0x48, 0x3A, 0x06, 0x0E, + 0x26, 0x29, 0x79, 0x29, 0x26, + 0x40, 0x7F, 0x05, 0x05, 0x07, + 0x40, 0x7F, 0x05, 0x25, 0x3F, + 0x5A, 0x3C, 0xE7, 0x3C, 0x5A, + 0x7F, 0x3E, 0x1C, 0x1C, 0x08, + 0x08, 0x1C, 0x1C, 0x3E, 0x7F, + 0x14, 0x22, 0x7F, 0x22, 0x14, + 0x5F, 0x5F, 0x00, 0x5F, 0x5F, + 0x06, 0x09, 0x7F, 0x01, 0x7F, + 0x00, 0x66, 0x89, 0x95, 0x6A, + 0x60, 0x60, 0x60, 0x60, 0x60, + 0x94, 0xA2, 0xFF, 0xA2, 0x94, + 0x08, 0x04, 0x7E, 0x04, 0x08, + 0x10, 0x20, 0x7E, 0x20, 0x10, + 0x08, 0x08, 0x2A, 0x1C, 0x08, + 0x08, 0x1C, 0x2A, 0x08, 0x08, + 0x1E, 0x10, 0x10, 0x10, 0x10, + 0x0C, 0x1E, 0x0C, 0x1E, 0x0C, + 0x30, 0x38, 0x3E, 0x38, 0x30, + 0x06, 0x0E, 0x3E, 0x0E, 0x06, + 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x5F, 0x00, 0x00, + 0x00, 0x07, 0x00, 0x07, 0x00, + 0x14, 0x7F, 0x14, 0x7F, 0x14, + 0x24, 0x2A, 0x7F, 0x2A, 0x12, + 0x23, 0x13, 0x08, 0x64, 0x62, + 0x36, 0x49, 0x56, 0x20, 0x50, + 0x00, 0x08, 0x07, 0x03, 0x00, + 0x00, 0x1C, 0x22, 0x41, 0x00, + 0x00, 0x41, 0x22, 0x1C, 0x00, + 0x2A, 0x1C, 0x7F, 0x1C, 0x2A, + 0x08, 0x08, 0x3E, 0x08, 0x08, + 0x00, 0x80, 0x70, 0x30, 0x00, + 0x08, 0x08, 0x08, 0x08, 0x08, + 0x00, 0x00, 0x60, 0x60, 0x00, + 0x20, 0x10, 0x08, 0x04, 0x02, + 0x3E, 0x51, 0x49, 0x45, 0x3E, + 0x00, 0x42, 0x7F, 0x40, 0x00, + 0x72, 0x49, 0x49, 0x49, 0x46, + 0x21, 0x41, 0x49, 0x4D, 0x33, + 0x18, 0x14, 0x12, 0x7F, 0x10, + 0x27, 0x45, 0x45, 0x45, 0x39, + 0x3C, 0x4A, 0x49, 0x49, 0x31, + 0x41, 0x21, 0x11, 0x09, 0x07, + 0x36, 0x49, 0x49, 0x49, 0x36, + 0x46, 0x49, 0x49, 0x29, 0x1E, + 0x00, 0x00, 0x14, 0x00, 0x00, + 0x00, 0x40, 0x34, 0x00, 0x00, + 0x00, 0x08, 0x14, 0x22, 0x41, + 0x14, 0x14, 0x14, 0x14, 0x14, + 0x00, 0x41, 0x22, 0x14, 0x08, + 0x02, 0x01, 0x59, 0x09, 0x06, + 0x3E, 0x41, 0x5D, 0x59, 0x4E, + 0x7C, 0x12, 0x11, 0x12, 0x7C, + 0x7F, 0x49, 0x49, 0x49, 0x36, + 0x3E, 0x41, 0x41, 0x41, 0x22, + 0x7F, 0x41, 0x41, 0x41, 0x3E, + 0x7F, 0x49, 0x49, 0x49, 0x41, + 0x7F, 0x09, 0x09, 0x09, 0x01, + 0x3E, 0x41, 0x41, 0x51, 0x73, + 0x7F, 0x08, 0x08, 0x08, 0x7F, + 0x00, 0x41, 0x7F, 0x41, 0x00, + 0x20, 0x40, 0x41, 0x3F, 0x01, + 0x7F, 0x08, 0x14, 0x22, 0x41, + 0x7F, 0x40, 0x40, 0x40, 0x40, + 0x7F, 0x02, 0x1C, 0x02, 0x7F, + 0x7F, 0x04, 0x08, 0x10, 0x7F, + 0x3E, 0x41, 0x41, 0x41, 0x3E, + 0x7F, 0x09, 0x09, 0x09, 0x06, + 0x3E, 0x41, 0x51, 0x21, 0x5E, + 0x7F, 0x09, 0x19, 0x29, 0x46, + 0x26, 0x49, 0x49, 0x49, 0x32, + 0x03, 0x01, 0x7F, 0x01, 0x03, + 0x3F, 0x40, 0x40, 0x40, 0x3F, + 0x1F, 0x20, 0x40, 0x20, 0x1F, + 0x3F, 0x40, 0x38, 0x40, 0x3F, + 0x63, 0x14, 0x08, 0x14, 0x63, + 0x03, 0x04, 0x78, 0x04, 0x03, + 0x61, 0x59, 0x49, 0x4D, 0x43, + 0x00, 0x7F, 0x41, 0x41, 0x41, + 0x02, 0x04, 0x08, 0x10, 0x20, + 0x00, 0x41, 0x41, 0x41, 0x7F, + 0x04, 0x02, 0x01, 0x02, 0x04, + 0x40, 0x40, 0x40, 0x40, 0x40, + 0x00, 0x03, 0x07, 0x08, 0x00, + 0x20, 0x54, 0x54, 0x78, 0x40, + 0x7F, 0x28, 0x44, 0x44, 0x38, + 0x38, 0x44, 0x44, 0x44, 0x28, + 0x38, 0x44, 0x44, 0x28, 0x7F, + 0x38, 0x54, 0x54, 0x54, 0x18, + 0x00, 0x08, 0x7E, 0x09, 0x02, + 0x18, 0xA4, 0xA4, 0x9C, 0x78, + 0x7F, 0x08, 0x04, 0x04, 0x78, + 0x00, 0x44, 0x7D, 0x40, 0x00, + 0x20, 0x40, 0x40, 0x3D, 0x00, + 0x7F, 0x10, 0x28, 0x44, 0x00, + 0x00, 0x41, 0x7F, 0x40, 0x00, + 0x7C, 0x04, 0x78, 0x04, 0x78, + 0x7C, 0x08, 0x04, 0x04, 0x78, + 0x38, 0x44, 0x44, 0x44, 0x38, + 0xFC, 0x18, 0x24, 0x24, 0x18, + 0x18, 0x24, 0x24, 0x18, 0xFC, + 0x7C, 0x08, 0x04, 0x04, 0x08, + 0x48, 0x54, 0x54, 0x54, 0x24, + 0x04, 0x04, 0x3F, 0x44, 0x24, + 0x3C, 0x40, 0x40, 0x20, 0x7C, + 0x1C, 0x20, 0x40, 0x20, 0x1C, + 0x3C, 0x40, 0x30, 0x40, 0x3C, + 0x44, 0x28, 0x10, 0x28, 0x44, + 0x4C, 0x90, 0x90, 0x90, 0x7C, + 0x44, 0x64, 0x54, 0x4C, 0x44, + 0x00, 0x08, 0x36, 0x41, 0x00, + 0x00, 0x00, 0x77, 0x00, 0x00, + 0x00, 0x41, 0x36, 0x08, 0x00, + 0x02, 0x01, 0x02, 0x04, 0x02, + 0x3C, 0x26, 0x23, 0x26, 0x3C, + 0x1E, 0xA1, 0xA1, 0x61, 0x12, + 0x3A, 0x40, 0x40, 0x20, 0x7A, + 0x38, 0x54, 0x54, 0x55, 0x59, + 0x21, 0x55, 0x55, 0x79, 0x41, + 0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut + 0x21, 0x55, 0x54, 0x78, 0x40, + 0x20, 0x54, 0x55, 0x79, 0x40, + 0x0C, 0x1E, 0x52, 0x72, 0x12, + 0x39, 0x55, 0x55, 0x55, 0x59, + 0x39, 0x54, 0x54, 0x54, 0x59, + 0x39, 0x55, 0x54, 0x54, 0x58, + 0x00, 0x00, 0x45, 0x7C, 0x41, + 0x00, 0x02, 0x45, 0x7D, 0x42, + 0x00, 0x01, 0x45, 0x7C, 0x40, + 0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut + 0xF0, 0x28, 0x25, 0x28, 0xF0, + 0x7C, 0x54, 0x55, 0x45, 0x00, + 0x20, 0x54, 0x54, 0x7C, 0x54, + 0x7C, 0x0A, 0x09, 0x7F, 0x49, + 0x32, 0x49, 0x49, 0x49, 0x32, + 0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut + 0x32, 0x4A, 0x48, 0x48, 0x30, + 0x3A, 0x41, 0x41, 0x21, 0x7A, + 0x3A, 0x42, 0x40, 0x20, 0x78, + 0x00, 0x9D, 0xA0, 0xA0, 0x7D, + 0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut + 0x3D, 0x40, 0x40, 0x40, 0x3D, + 0x3C, 0x24, 0xFF, 0x24, 0x24, + 0x48, 0x7E, 0x49, 0x43, 0x66, + 0x2B, 0x2F, 0xFC, 0x2F, 0x2B, + 0xFF, 0x09, 0x29, 0xF6, 0x20, + 0xC0, 0x88, 0x7E, 0x09, 0x03, + 0x20, 0x54, 0x54, 0x79, 0x41, + 0x00, 0x00, 0x44, 0x7D, 0x41, + 0x30, 0x48, 0x48, 0x4A, 0x32, + 0x38, 0x40, 0x40, 0x22, 0x7A, + 0x00, 0x7A, 0x0A, 0x0A, 0x72, + 0x7D, 0x0D, 0x19, 0x31, 0x7D, + 0x26, 0x29, 0x29, 0x2F, 0x28, + 0x26, 0x29, 0x29, 0x29, 0x26, + 0x30, 0x48, 0x4D, 0x40, 0x20, + 0x38, 0x08, 0x08, 0x08, 0x08, + 0x08, 0x08, 0x08, 0x08, 0x38, + 0x2F, 0x10, 0xC8, 0xAC, 0xBA, + 0x2F, 0x10, 0x28, 0x34, 0xFA, + 0x00, 0x00, 0x7B, 0x00, 0x00, + 0x08, 0x14, 0x2A, 0x14, 0x22, + 0x22, 0x14, 0x2A, 0x14, 0x08, + 0x55, 0x00, 0x55, 0x00, 0x55, // #176 (25% block) missing in old code + 0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block + 0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block + 0x00, 0x00, 0x00, 0xFF, 0x00, + 0x10, 0x10, 0x10, 0xFF, 0x00, + 0x14, 0x14, 0x14, 0xFF, 0x00, + 0x10, 0x10, 0xFF, 0x00, 0xFF, + 0x10, 0x10, 0xF0, 0x10, 0xF0, + 0x14, 0x14, 0x14, 0xFC, 0x00, + 0x14, 0x14, 0xF7, 0x00, 0xFF, + 0x00, 0x00, 0xFF, 0x00, 0xFF, + 0x14, 0x14, 0xF4, 0x04, 0xFC, + 0x14, 0x14, 0x17, 0x10, 0x1F, + 0x10, 0x10, 0x1F, 0x10, 0x1F, + 0x14, 0x14, 0x14, 0x1F, 0x00, + 0x10, 0x10, 0x10, 0xF0, 0x00, + 0x00, 0x00, 0x00, 0x1F, 0x10, + 0x10, 0x10, 0x10, 0x1F, 0x10, + 0x10, 0x10, 0x10, 0xF0, 0x10, + 0x00, 0x00, 0x00, 0xFF, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0xFF, 0x10, + 0x00, 0x00, 0x00, 0xFF, 0x14, + 0x00, 0x00, 0xFF, 0x00, 0xFF, + 0x00, 0x00, 0x1F, 0x10, 0x17, + 0x00, 0x00, 0xFC, 0x04, 0xF4, + 0x14, 0x14, 0x17, 0x10, 0x17, + 0x14, 0x14, 0xF4, 0x04, 0xF4, + 0x00, 0x00, 0xFF, 0x00, 0xF7, + 0x14, 0x14, 0x14, 0x14, 0x14, + 0x14, 0x14, 0xF7, 0x00, 0xF7, + 0x14, 0x14, 0x14, 0x17, 0x14, + 0x10, 0x10, 0x1F, 0x10, 0x1F, + 0x14, 0x14, 0x14, 0xF4, 0x14, + 0x10, 0x10, 0xF0, 0x10, 0xF0, + 0x00, 0x00, 0x1F, 0x10, 0x1F, + 0x00, 0x00, 0x00, 0x1F, 0x14, + 0x00, 0x00, 0x00, 0xFC, 0x14, + 0x00, 0x00, 0xF0, 0x10, 0xF0, + 0x10, 0x10, 0xFF, 0x10, 0xFF, + 0x14, 0x14, 0x14, 0xFF, 0x14, + 0x10, 0x10, 0x10, 0x1F, 0x00, + 0x00, 0x00, 0x00, 0xF0, 0x10, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, + 0xFF, 0xFF, 0xFF, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xFF, 0xFF, + 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, + 0x38, 0x44, 0x44, 0x38, 0x44, + 0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta + 0x7E, 0x02, 0x02, 0x06, 0x06, + 0x02, 0x7E, 0x02, 0x7E, 0x02, + 0x63, 0x55, 0x49, 0x41, 0x63, + 0x38, 0x44, 0x44, 0x3C, 0x04, + 0x40, 0x7E, 0x20, 0x1E, 0x20, + 0x06, 0x02, 0x7E, 0x02, 0x02, + 0x99, 0xA5, 0xE7, 0xA5, 0x99, + 0x1C, 0x2A, 0x49, 0x2A, 0x1C, + 0x4C, 0x72, 0x01, 0x72, 0x4C, + 0x30, 0x4A, 0x4D, 0x4D, 0x30, + 0x30, 0x48, 0x78, 0x48, 0x30, + 0xBC, 0x62, 0x5A, 0x46, 0x3D, + 0x3E, 0x49, 0x49, 0x49, 0x00, + 0x7E, 0x01, 0x01, 0x01, 0x7E, + 0x2A, 0x2A, 0x2A, 0x2A, 0x2A, + 0x44, 0x44, 0x5F, 0x44, 0x44, + 0x40, 0x51, 0x4A, 0x44, 0x40, + 0x40, 0x44, 0x4A, 0x51, 0x40, + 0x00, 0x00, 0xFF, 0x01, 0x03, + 0xE0, 0x80, 0xFF, 0x00, 0x00, + 0x08, 0x08, 0x6B, 0x6B, 0x08, + 0x36, 0x12, 0x36, 0x24, 0x36, + 0x06, 0x0F, 0x09, 0x0F, 0x06, + 0x00, 0x00, 0x18, 0x18, 0x00, + 0x00, 0x00, 0x10, 0x10, 0x00, + 0x30, 0x40, 0xFF, 0x01, 0x01, + 0x00, 0x1F, 0x01, 0x01, 0x1E, + 0x00, 0x19, 0x1D, 0x17, 0x12, + 0x00, 0x3C, 0x3C, 0x3C, 0x3C, + 0x00, 0x00, 0x00, 0x00, 0x00 // #255 NBSP +}; +#endif // FONT5X7_H diff --git a/keyboards/lets_split/i2c.c b/keyboards/lets_split/i2c.c index 084c890c40..038f37a4be 100644 --- a/keyboards/lets_split/i2c.c +++ b/keyboards/lets_split/i2c.c @@ -48,7 +48,7 @@ void i2c_master_init(void) { // returns: 0 => success // 1 => error uint8_t i2c_master_start(uint8_t address) { - TWCR = (1< ERROR_DISCONNECT_COUNT) { @@ -226,9 +227,7 @@ uint8_t matrix_scan(void) TXLED0; error_count = 0; } - matrix_scan_quantum(); - return ret; } diff --git a/keyboards/lets_split/rules.mk b/keyboards/lets_split/rules.mk index 0efa785505..ff159e0f06 100644 --- a/keyboards/lets_split/rules.mk +++ b/keyboards/lets_split/rules.mk @@ -1,7 +1,8 @@ SRC += matrix.c \ i2c.c \ split_util.c \ - serial.c + serial.c\ + ssd1306.c # MCU name #MCU = at90usb1287 @@ -73,15 +74,3 @@ USE_I2C ?= yes SLEEP_LED_ENABLE ?= no # Breathing sleep LED during USB suspend CUSTOM_MATRIX = yes - -avrdude: build - ls /dev/tty* > /tmp/1; \ - echo "Reset your Pro Micro now"; \ - while [[ -z $$USB ]]; do \ - sleep 1; \ - ls /dev/tty* > /tmp/2; \ - USB=`diff /tmp/1 /tmp/2 | grep -o '/dev/tty.*'`; \ - done; \ - avrdude -p $(MCU) -c avr109 -P $$USB -U flash:w:$(BUILD_DIR)/$(TARGET).hex - -.PHONY: avrdude diff --git a/keyboards/lets_split/split_util.c b/keyboards/lets_split/split_util.c index 226dc18816..b87bae38b1 100644 --- a/keyboards/lets_split/split_util.c +++ b/keyboards/lets_split/split_util.c @@ -21,8 +21,8 @@ static void setup_handedness(void) { #ifdef EE_HANDS isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS); #else - // I2C_MASTER_RIGHT is deprecated use MASTER_RIGHT instead since this works for both serial and i2c - #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT) + // I2c_MASTER_RIGHT ish deprecate use MASTER_RIGHT instead since this works for both serial and i2c: + #if defined (I2C_MASTER_RIGHT) || defined (MASTER_RIGHT) isLeftHand = !has_usb(); #else isLeftHand = has_usb(); @@ -33,6 +33,9 @@ static void setup_handedness(void) { static void keyboard_master_setup(void) { #ifdef USE_I2C i2c_master_init(); +#ifdef SSD1306OLED + matrix_master_OLED_init (); +#endif #else serial_master_init(); #endif diff --git a/keyboards/lets_split/split_util.h b/keyboards/lets_split/split_util.h index 6b896679ca..3ae76c209a 100644 --- a/keyboards/lets_split/split_util.h +++ b/keyboards/lets_split/split_util.h @@ -19,4 +19,6 @@ void split_keyboard_setup(void); bool has_usb(void); void keyboard_slave_loop(void); +void matrix_master_OLED_init (void); + #endif diff --git a/keyboards/lets_split/ssd1306.c b/keyboards/lets_split/ssd1306.c new file mode 100644 index 0000000000..c25a355bf1 --- /dev/null +++ b/keyboards/lets_split/ssd1306.c @@ -0,0 +1,508 @@ +#include "config.h" +#include "i2c.h" +#include +#include +#include +#include "print.h" +#include "lets_split.h" +#include "common/glcdfont.c" +#ifdef ADAFRUIT_BLE_ENABLE +#include "adafruit_ble.h" +#endif +#ifdef PROTOCOL_LUFA +#include "lufa.h" +#endif +#include "sendchar.h" +#include "pincontrol.h" + +//assign the right code to your layers +#define _BASE 0 +#define _LOWER 8 +#define _RAISE 16 +#define _FNLAYER 64 +#define _NUMLAY 128 +#define _NLOWER 136 +#define _NFNLAYER 192 +#define _MOUSECURSOR 256 +#define _ADJUST 65560 + +// Set this to 1 to help diagnose early startup problems +// when testing power-on with ble. Turn it off otherwise, +// as the latency of printing most of the debug info messes +// with the matrix scan, causing keys to drop. +#define DEBUG_TO_SCREEN 0 + +// Controls the SSD1306 128x32 OLED display via i2c + +#define i2cAddress 0x3C + +#define DisplayHeight 32 +#define DisplayWidth 128 + +#define FontHeight 8 +#define FontWidth 6 + +#define MatrixRows (DisplayHeight / FontHeight) +#define MatrixCols (DisplayWidth / FontWidth) + +struct CharacterMatrix { + uint8_t display[MatrixRows][MatrixCols]; + uint8_t *cursor; + bool dirty; +}; + +static struct CharacterMatrix display; +//static uint16_t last_battery_update; +//static uint32_t vbat; +//#define BatteryUpdateInterval 10000 /* milliseconds */ +#define ScreenOffInterval 300000 /* milliseconds */ +#if DEBUG_TO_SCREEN +static uint8_t displaying; +#endif +static uint16_t last_flush; + +enum ssd1306_cmds { + DisplayOff = 0xAE, + DisplayOn = 0xAF, + + SetContrast = 0x81, + DisplayAllOnResume = 0xA4, + + DisplayAllOn = 0xA5, + NormalDisplay = 0xA6, + InvertDisplay = 0xA7, + SetDisplayOffset = 0xD3, + SetComPins = 0xda, + SetVComDetect = 0xdb, + SetDisplayClockDiv = 0xD5, + SetPreCharge = 0xd9, + SetMultiPlex = 0xa8, + SetLowColumn = 0x00, + SetHighColumn = 0x10, + SetStartLine = 0x40, + + SetMemoryMode = 0x20, + ColumnAddr = 0x21, + PageAddr = 0x22, + + ComScanInc = 0xc0, + ComScanDec = 0xc8, + SegRemap = 0xa0, + SetChargePump = 0x8d, + ExternalVcc = 0x01, + SwitchCapVcc = 0x02, + + ActivateScroll = 0x2f, + DeActivateScroll = 0x2e, + SetVerticalScrollArea = 0xa3, + RightHorizontalScroll = 0x26, + LeftHorizontalScroll = 0x27, + VerticalAndRightHorizontalScroll = 0x29, + VerticalAndLeftHorizontalScroll = 0x2a, +}; + + +// Write command sequence. +// Returns true on success. +static inline bool _send_cmd1(uint8_t cmd) { + bool res = false; + + if (i2c_start_write(i2cAddress)) { + xprintf("failed to start write to %d\n", i2cAddress); + goto done; + } + + if (i2c_master_write(0x0 /* command byte follows */)) { + print("failed to write control byte\n"); + + goto done; + } + + if (i2c_master_write(cmd)) { + xprintf("failed to write command %d\n", cmd); + goto done; + } + res = true; +done: + i2c_master_stop(); + return res; +} + +// Write 2-byte command sequence. +// Returns true on success +static inline bool _send_cmd2(uint8_t cmd, uint8_t opr) { + if (!_send_cmd1(cmd)) { + return false; + } + return _send_cmd1(opr); +} + +// Write 3-byte command sequence. +// Returns true on success +static inline bool _send_cmd3(uint8_t cmd, uint8_t opr1, uint8_t opr2) { + if (!_send_cmd1(cmd)) { + return false; + } + if (!_send_cmd1(opr1)) { + return false; + } + return _send_cmd1(opr2); +} + +#define send_cmd1(c) if (!_send_cmd1(c)) {goto done;} +#define send_cmd2(c,o) if (!_send_cmd2(c,o)) {goto done;} +#define send_cmd3(c,o1,o2) if (!_send_cmd3(c,o1,o2)) {goto done;} + +static void matrix_clear(struct CharacterMatrix *matrix); + +static void clear_display(void) { + matrix_clear(&display); + + // Clear all of the display bits (there can be random noise + // in the RAM on startup) + send_cmd3(PageAddr, 0, (DisplayHeight / 8) - 1); + send_cmd3(ColumnAddr, 0, DisplayWidth - 1); + + if (i2c_start_write(i2cAddress)) { + goto done; + } + if (i2c_master_write(0x40)) { + // Data mode + goto done; + } + for (uint8_t row = 0; row < MatrixRows; ++row) { + for (uint8_t col = 0; col < DisplayWidth; ++col) { + i2c_master_write(0); + } + } + + display.dirty = false; + +done: + i2c_master_stop(); +} + +#if DEBUG_TO_SCREEN +#undef sendchar +static int8_t capture_sendchar(uint8_t c) { + sendchar(c); + iota_gfx_write_char(c); + + if (!displaying) { + iota_gfx_flush(); + } + return 0; +} +#endif + +bool iota_gfx_init(void) { + bool success = false; + + send_cmd1(DisplayOff); + send_cmd2(SetDisplayClockDiv, 0x80); + send_cmd2(SetMultiPlex, DisplayHeight - 1); + + send_cmd2(SetDisplayOffset, 0); + + + send_cmd1(SetStartLine | 0x0); + send_cmd2(SetChargePump, 0x14 /* Enable */); + send_cmd2(SetMemoryMode, 0 /* horizontal addressing */); + +/* Flips the display orientation 0 degrees + send_cmd1(SegRemap | 0x1); + send_cmd1(ComScanDec); +*/ +// the following Flip the display orientation 180 degrees */ + send_cmd1(SegRemap); + send_cmd1(ComScanInc); +//end flip + send_cmd2(SetComPins, 0x2); + send_cmd2(SetContrast, 0x8f); + send_cmd2(SetPreCharge, 0xf1); + send_cmd2(SetVComDetect, 0x40); + send_cmd1(DisplayAllOnResume); + send_cmd1(NormalDisplay); + send_cmd1(DeActivateScroll); + send_cmd1(DisplayOn); + + send_cmd2(SetContrast, 0); // Dim + + clear_display(); + + success = true; + + iota_gfx_flush(); + +#if DEBUG_TO_SCREEN + print_set_sendchar(capture_sendchar); +#endif + +done: + return success; +} + +bool iota_gfx_off(void) { + bool success = false; + + send_cmd1(DisplayOff); + success = true; + +done: + return success; +} + +bool iota_gfx_on(void) { + bool success = false; + + send_cmd1(DisplayOn); + success = true; + +done: + return success; +} + +static void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c) { + *matrix->cursor = c; + ++matrix->cursor; + + if (matrix->cursor - &matrix->display[0][0] == sizeof(matrix->display)) { + // We went off the end; scroll the display upwards by one line + memmove(&matrix->display[0], &matrix->display[1], + MatrixCols * (MatrixRows - 1)); + matrix->cursor = &matrix->display[MatrixRows - 1][0]; + memset(matrix->cursor, ' ', MatrixCols); + } +} + +static void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c) { + matrix->dirty = true; + + if (c == '\n') { + // Clear to end of line from the cursor and then move to the + // start of the next line + uint8_t cursor_col = (matrix->cursor - &matrix->display[0][0]) % MatrixCols; + + while (cursor_col++ < MatrixCols) { + matrix_write_char_inner(matrix, ' '); + } + return; + } + + matrix_write_char_inner(matrix, c); +} + +void iota_gfx_write_char(uint8_t c) { + matrix_write_char(&display, c); +} + +static void matrix_write(struct CharacterMatrix *matrix, const char *data) { + const char *end = data + strlen(data); + while (data < end) { + matrix_write_char(matrix, *data); + ++data; + } +} + +void iota_gfx_write(const char *data) { + matrix_write(&display, data); +} + +static void matrix_write_P(struct CharacterMatrix *matrix, const char *data) { + while (true) { + uint8_t c = pgm_read_byte(data); + if (c == 0) { + return; + } + matrix_write_char(matrix, c); + ++data; + } +} + +void iota_gfx_write_P(const char *data) { + matrix_write_P(&display, data); +} + +static void matrix_clear(struct CharacterMatrix *matrix) { + memset(matrix->display, ' ', sizeof(matrix->display)); + matrix->cursor = &matrix->display[0][0]; + matrix->dirty = true; +} + +void iota_gfx_clear_screen(void) { + matrix_clear(&display); +} + +static void matrix_render(struct CharacterMatrix *matrix) { + last_flush = timer_read(); + iota_gfx_on(); +#if DEBUG_TO_SCREEN + ++displaying; +#endif + + // Move to the home position + send_cmd3(PageAddr, 0, MatrixRows - 1); + send_cmd3(ColumnAddr, 0, (MatrixCols * FontWidth) - 1); + + if (i2c_start_write(i2cAddress)) { + goto done; + } + if (i2c_master_write(0x40)) { + // Data mode + goto done; + } + + for (uint8_t row = 0; row < MatrixRows; ++row) { + for (uint8_t col = 0; col < MatrixCols; ++col) { + const uint8_t *glyph = font + (matrix->display[row][col] * (FontWidth - 1)); + + for (uint8_t glyphCol = 0; glyphCol < FontWidth - 1; ++glyphCol) { + uint8_t colBits = pgm_read_byte(glyph + glyphCol); + i2c_master_write(colBits); + } + + // 1 column of space between chars (it's not included in the glyph) + i2c_master_write(0); + } + } + + matrix->dirty = false; + +done: + i2c_master_stop(); +#if DEBUG_TO_SCREEN + --displaying; +#endif +} + +void iota_gfx_flush(void) { + matrix_render(&display); +} + +//#include "LUFA/Drivers/Peripheral/ADC.h" + +/* Returns the battery voltage; returns the number of millivolts +static uint32_t read_battery_voltage(void) { + if (last_battery_update == 0 || + timer_elapsed(last_battery_update) > BatteryUpdateInterval) { + ADC_Init(ADC_SINGLE_CONVERSION | ADC_PRESCALE_32); + ADC_SetupChannel(12); + vbat = 2 * 3.3 * ADC_GetChannelReading(ADC_REFERENCE_AVCC | ADC_CHANNEL12); + + last_battery_update = timer_read(); + } + return vbat; +} */ + +static void matrix_update(struct CharacterMatrix *dest, + const struct CharacterMatrix *source) { + if (memcmp(dest->display, source->display, sizeof(dest->display))) { + memcpy(dest->display, source->display, sizeof(dest->display)); + dest->dirty = true; + } +} + +static void render_status_info(void) { +#if DEBUG_TO_SCREEN + if (debug_enable) { + return; + } +#endif + + struct CharacterMatrix matrix; + + matrix_clear(&matrix); + matrix_write_P(&matrix, PSTR("USB: ")); +#ifdef PROTOCOL_LUFA + switch (USB_DeviceState) { + case DEVICE_STATE_Unattached: + matrix_write_P(&matrix, PSTR("Unattached")); + break; + case DEVICE_STATE_Suspended: + matrix_write_P(&matrix, PSTR("Suspended")); + break; + case DEVICE_STATE_Configured: + matrix_write_P(&matrix, PSTR("Connected")); + break; + case DEVICE_STATE_Powered: + matrix_write_P(&matrix, PSTR("Powered")); + break; + case DEVICE_STATE_Default: + matrix_write_P(&matrix, PSTR("Default")); + break; + case DEVICE_STATE_Addressed: + matrix_write_P(&matrix, PSTR("Addressed")); + break; + default: + matrix_write_P(&matrix, PSTR("Invalid")); + } +#endif + + // matrix_write_P(&matrix, (host_keyboard_leds() & (1< ScreenOffInterval) { + iota_gfx_off(); + } +} -- cgit v1.2.3