diff options
Diffstat (limited to 'keyboards/woodkeys/meira')
35 files changed, 2982 insertions, 0 deletions
diff --git a/keyboards/woodkeys/meira/TWIlib.c b/keyboards/woodkeys/meira/TWIlib.c new file mode 100755 index 0000000000..8f5658fcdb --- /dev/null +++ b/keyboards/woodkeys/meira/TWIlib.c @@ -0,0 +1,300 @@ +/* + * TWIlib.c + * + * Created: 6/01/2014 10:41:33 PM + * Author: Chris Herring + */ + +#include <avr/io.h> +#include <avr/interrupt.h> +#include "TWIlib.h" +#include <util/delay.h> +#include "print.h" + +// Global transmit buffer +volatile uint8_t *TWITransmitBuffer; +// 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) + +TWIInfoStruct TWIInfo; + +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) ) + { + +// xprintf("i2c ready\n"); + return 1; + } + else + { + if(TWIInfo.mode == Initializing){ + switch(TWIInfo.errorCode){ + case TWI_SUCCESS: + break; + case TWI_NO_RELEVANT_INFO: + + break; + case TWI_LOST_ARBIT: + case TWI_MT_DATA_NACK: + // Some kind of I2C error, reset and re-init + xprintf("I2C init error: %d\n", TWIInfo.errorCode); + TWCR = (1 << TWINT)|(1 << TWSTO); + TWIInit(); + break; + default: + xprintf("Other i2c init error: %d\n", TWIInfo.errorCode); + } + } + return 0; + } +} + + +void TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart, uint8_t blocking) +{ + // Wait until ready + while (!isTWIReady()) {_delay_us(1);} + // Reset the I2C stuff + TWCR = (1 << TWINT)|(1 << TWSTO); + TWIInit(); + // Set repeated start mode + TWIInfo.repStart = repStart; + // Copy transmit info to global variables + TWITransmitBuffer = (uint8_t *)TXdata; + 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(); + } + if(blocking){ + // Wait until ready + while (!isTWIReady()){_delay_us(1);} + } +} + + +// 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, 0); + } + 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; + } + +} diff --git a/keyboards/woodkeys/meira/TWIlib.h b/keyboards/woodkeys/meira/TWIlib.h new file mode 100755 index 0000000000..8ba261c6e5 --- /dev/null +++ b/keyboards/woodkeys/meira/TWIlib.h @@ -0,0 +1,71 @@ +/* + * TWIlib.h + * + * Created: 6/01/2014 10:38:42 PM + * Author: Chris Herring + */ + + +#ifndef TWILIB_H_ +#define TWILIB_H_ +// TWI bit rate +#define TWI_FREQ 400000 +// Get TWI status +#define TWI_STATUS (TWSR & 0xF8) +// Transmit buffer length +#define TXMAXBUFLEN 20 +// Receive buffer length +#define RXMAXBUFLEN 20 + +typedef enum { + Ready, + Initializing, + RepeatedStartSent, + MasterTransmitter, + MasterReceiver, + SlaceTransmitter, + SlaveReciever + } TWIMode; + + typedef struct TWIInfoStruct{ + TWIMode mode; + uint8_t errorCode; + uint8_t repStart; + }TWIInfoStruct; + +extern 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 +void TWITransmitData(void *const TXdata, uint8_t dataLen, uint8_t repStart, uint8_t blocking); +void TWIInit(void); +uint8_t TWIReadData(uint8_t TWIaddr, uint8_t bytesToRead, uint8_t repStart); +uint8_t isTWIReady(void); + +#endif // TWICOMMS_H_
\ No newline at end of file diff --git a/keyboards/woodkeys/meira/config.h b/keyboards/woodkeys/meira/config.h new file mode 100644 index 0000000000..999ab1bf8a --- /dev/null +++ b/keyboards/woodkeys/meira/config.h @@ -0,0 +1,45 @@ +/* +Copyright 2017 Cole Markham + +This program 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 2 of the License, or +(at your option) any later version. + +This program 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 program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#pragma once + +#include "config_common.h" + +/* USB Device descriptor parameter */ +#define VENDOR_ID 0xFEED +#define PRODUCT_ID 0x6061 +#define DEVICE_VER 0x0001 +#define MANUFACTURER WoodKeys.click +#define PRODUCT Meira + +/* key matrix size */ +#define MATRIX_ROWS 4 +#define MATRIX_COLS 12 + +/* COL2ROW, ROW2COL*/ +//#define DIODE_DIRECTION + +#ifdef BACKLIGHT_ENABLE +#define BACKLIGHT_LEVELS 10 +#define BACKLIGHT_PWM_MAP {2, 4, 8, 16, 40, 55, 70, 128, 200, 255} +#endif + +#ifdef RGBLIGHT_ENABLE +#define RGB_DI_PIN D3 + +#define RGBLED_NUM 15 // Number of LEDs +#endif diff --git a/keyboards/woodkeys/meira/featherble/config.h b/keyboards/woodkeys/meira/featherble/config.h new file mode 100644 index 0000000000..94bef3b330 --- /dev/null +++ b/keyboards/woodkeys/meira/featherble/config.h @@ -0,0 +1,97 @@ +/* +Copyright 2017 Cole Markham, WoodKeys.click + +This program 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 2 of the License, or +(at your option) any later version. + +This program 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 program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#pragma once + +#include "config_common.h" + +/* + * Keyboard Matrix Assignments + * + * Change this to how you wired your keyboard + * COLS: AVR pins used for columns, left to right + * ROWS: AVR pins used for rows, top to bottom + * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode) + * ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode) + * +*/ +#define MATRIX_ROW_PINS { F7, F6, F5, F4 } +// Column pins to demux in LSB order +#define MATRIX_COL_PINS { C7, B7, B6, C6, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN } +#define MATRIX_COL_PINS_SCANNED { C7, B7, B6, C6 } +#define LED_EN_PIN D2 +#define UNUSED_PINS + +#define QMK_SPEAKER B5 +#define AUDIO_PIN B5 +#define AUDIO_VOICES + +// #define BACKLIGHT_PIN B7 +// #define BACKLIGHT_BREATHING +//#define BACKLIGHT_LEVELS 3 + +/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */ +#define DEBOUNCE 5 + +/* define if matrix has ghost (lacks anti-ghosting diodes) */ +//#define MATRIX_HAS_GHOST + +/* number of backlight levels */ + +/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */ +#define LOCKING_SUPPORT_ENABLE +/* Locking resynchronize hack */ +#define LOCKING_RESYNC_ENABLE + +/* + * Force NKRO + * + * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved + * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the + * makefile for this to work.) + * + * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N) + * until the next keyboard reset. + * + * NKRO may prevent your keystrokes from being detected in the BIOS, but it is + * fully operational during normal computer usage. + * + * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N) + * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by + * bootmagic, NKRO mode will always be enabled until it is toggled again during a + * power-up. + * + */ +//#define FORCE_NKRO + +/* + * Feature disable options + * These options are also useful to firmware size reduction. + */ + +/* disable debug print */ +//#define NO_DEBUG + +/* disable print */ +//#define NO_PRINT + +/* disable action features */ +//#define NO_ACTION_LAYER +//#define NO_ACTION_TAPPING +//#define NO_ACTION_ONESHOT +//#define NO_ACTION_MACRO +//#define NO_ACTION_FUNCTION diff --git a/keyboards/woodkeys/meira/featherble/featherble.c b/keyboards/woodkeys/meira/featherble/featherble.c new file mode 100644 index 0000000000..63ade21904 --- /dev/null +++ b/keyboards/woodkeys/meira/featherble/featherble.c @@ -0,0 +1,17 @@ +/* Copyright 2017 Cole Markham, WoodKeys.click + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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 program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "meira.h" diff --git a/keyboards/woodkeys/meira/featherble/featherble.h b/keyboards/woodkeys/meira/featherble/featherble.h new file mode 100644 index 0000000000..eab7c639b9 --- /dev/null +++ b/keyboards/woodkeys/meira/featherble/featherble.h @@ -0,0 +1,19 @@ +/* Copyright 2017 Cole Markham, WoodKeys.click + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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 program. If not, see <http://www.gnu.org/licenses/>. + */ + +#pragma once + +#include "meira.h" diff --git a/keyboards/woodkeys/meira/featherble/rules.mk b/keyboards/woodkeys/meira/featherble/rules.mk new file mode 100644 index 0000000000..01f1af1ae8 --- /dev/null +++ b/keyboards/woodkeys/meira/featherble/rules.mk @@ -0,0 +1,5 @@ +# Processor frequency +F_CPU = 8000000 + +BLUETOOTH_ENABLE = yes +BLUETOOTH_DRIVER = BluefruitLE diff --git a/keyboards/woodkeys/meira/info.json b/keyboards/woodkeys/meira/info.json new file mode 100644 index 0000000000..de9ce42f8e --- /dev/null +++ b/keyboards/woodkeys/meira/info.json @@ -0,0 +1,65 @@ +{ + "keyboard_name": "Meira", + "url": "", + "maintainer": "colemarkham", + "layout_aliases": { + "LAYOUT": "LAYOUT_ortho_4x12" + }, + "layouts": { + "LAYOUT_ortho_4x12": { + "layout": [ + {"x":0, "y":0}, + {"x":1, "y":0}, + {"x":2, "y":0}, + {"x":3, "y":0}, + {"x":4, "y":0}, + {"x":5, "y":0}, + {"x":6, "y":0}, + {"x":7, "y":0}, + {"x":8, "y":0}, + {"x":9, "y":0}, + {"x":10, "y":0}, + {"x":11, "y":0}, + + {"x":0, "y":1}, + {"x":1, "y":1}, + {"x":2, "y":1}, + {"x":3, "y":1}, + {"x":4, "y":1}, + {"x":5, "y":1}, + {"x":6, "y":1}, + {"x":7, "y":1}, + {"x":8, "y":1}, + {"x":9, "y":1}, + {"x":10, "y":1}, + {"x":11, "y":1}, + + {"x":0, "y":2}, + {"x":1, "y":2}, + {"x":2, "y":2}, + {"x":3, "y":2}, + {"x":4, "y":2}, + {"x":5, "y":2}, + {"x":6, "y":2}, + {"x":7, "y":2}, + {"x":8, "y":2}, + {"x":9, "y":2}, + {"x":10, "y":2}, + {"x":11, "y":2}, + + {"x":0, "y":3}, + {"x":1, "y":3}, + {"x":2, "y":3}, + {"x":3, "y":3}, + {"x":4, "y":3}, + {"x":5, "y":3}, + {"x":6, "y":3}, + {"x":7, "y":3}, + {"x":8, "y":3}, + {"x":9, "y":3}, + {"x":10, "y":3}, + {"x":11, "y":3} + ] + } + } +} diff --git a/keyboards/woodkeys/meira/issi.c b/keyboards/woodkeys/meira/issi.c new file mode 100755 index 0000000000..600a465ba3 --- /dev/null +++ b/keyboards/woodkeys/meira/issi.c @@ -0,0 +1,286 @@ +#ifdef ISSI_ENABLE + +#include <stdlib.h> +#include <stdint.h> +#include <util/delay.h> +#include <avr/sfr_defs.h> +#include <avr/io.h> +#include <util/twi.h> +#include "issi.h" +#include "print.h" +#include "TWIlib.h" + +#define ISSI_ADDR_DEFAULT 0xE8 + +#define ISSI_REG_CONFIG 0x00 +#define ISSI_REG_CONFIG_PICTUREMODE 0x00 +#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08 + +#define ISSI_CONF_PICTUREMODE 0x00 +#define ISSI_CONF_AUTOFRAMEMODE 0x04 +#define ISSI_CONF_AUDIOMODE 0x08 + +#define ISSI_REG_PICTUREFRAME 0x01 + +#define ISSI_REG_SHUTDOWN 0x0A +#define ISSI_REG_AUDIOSYNC 0x06 + +#define ISSI_COMMANDREGISTER 0xFD +#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine' +uint8_t control[8][9] = { + {0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0}, +}; +ISSIDeviceStruct *issi_devices[4] = {0, 0, 0, 0}; + +#ifndef cbi +#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) +#endif + +#ifndef sbi +#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) +#endif + +#define I2C_WRITE 0 +#define F_SCL 400000UL // SCL frequency +#define Prescaler 1 +#define TWBR_val ((((F_CPU / F_SCL) / Prescaler) - 16 ) / 2) + +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_transmit(uint8_t address, uint8_t* data, uint16_t length) +{ + TWBR = (uint8_t)TWBR_val; + if (i2c_start(address | I2C_WRITE)) + return 1; + for (uint16_t i = 0; i < length; i++) { + if (i2c_write(data[i])) + return 1; + } + // transmit STOP condition + TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWSTO); + return 0; +} + +void setFrame(uint8_t device, uint8_t frame) +{ + static uint8_t current_frame = -1; + if(current_frame != frame){ + uint8_t payload[] = { + ISSI_ADDR_DEFAULT | device << 1, + ISSI_COMMANDREGISTER, + frame + }; + TWITransmitData(payload, sizeof(payload), 0, 1); + } + // static uint8_t current_frame = 0xFF; + // if(current_frame == frame){ + // // return; + // } + // uint8_t payload[2] = { ISSI_COMMANDREGISTER, frame }; + // i2c_transmit(ISSI_ADDR_DEFAULT | device << 1, payload, 2); + // current_frame = frame; +} + +void writeRegister8(uint8_t device, uint8_t frame, uint8_t reg, uint8_t data) +{ + // Set the frame + setFrame(device, frame); + + // Write to the register + uint8_t payload[] = { + ISSI_ADDR_DEFAULT | device << 1, + reg, + data + }; + TWITransmitData(payload, sizeof(payload), 0, 1); +} + +// void activateLED(uint8_t matrix, uint8_t cx, uint8_t cy, uint8_t pwm) +// { +// xprintf("activeLED: %02X %02X %02X %02X\n", matrix, cy, cx, pwm); +// uint8_t x = cx - 1; // funciton takes 1 based counts, but we need 0... +// uint8_t y = cy - 1; // creating them once for less confusion +// if(pwm == 0){ +// cbi(control[matrix][y], x); +// }else{ +// sbi(control[matrix][y], x); +// } +// |