diff options
Diffstat (limited to 'keyboards/frenchdev/v1')
-rw-r--r-- | keyboards/frenchdev/v1/Makefile | 8 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/config.h | 68 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/i2cmaster.h | 178 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/matrix.c | 394 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/rules.mk | 80 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/twimaster.c | 208 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/v1.c | 86 | ||||
-rw-r--r-- | keyboards/frenchdev/v1/v1.h | 116 |
8 files changed, 1138 insertions, 0 deletions
diff --git a/keyboards/frenchdev/v1/Makefile b/keyboards/frenchdev/v1/Makefile new file mode 100644 index 0000000000..1098332b8a --- /dev/null +++ b/keyboards/frenchdev/v1/Makefile @@ -0,0 +1,8 @@ +SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend +COMMAND_ENABLE = no # Commands for debug and configuration +RGBLIGHT_ENABLE ?= yes +MIDI_ENABLE ?= no + +ifndef MAKEFILE_INCLUDED + include ../../../Makefile +endif diff --git a/keyboards/frenchdev/v1/config.h b/keyboards/frenchdev/v1/config.h new file mode 100644 index 0000000000..c4c42df82a --- /dev/null +++ b/keyboards/frenchdev/v1/config.h @@ -0,0 +1,68 @@ +/* +Copyright 2012 Jun Wako <wakojun@gmail.com> +Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com> + +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/>. +*/ + +#ifndef FRENCHDEV_V1_CONFIG_H +#define FRENCHDEV_V1_CONFIG_H + +#include "../config.h" + +#include "config_common.h" + +/* USB Device descriptor parameter */ +#define VENDOR_ID 0xFEED +#define PRODUCT_ID 0x1307 +#define DEVICE_VER 0x0001 +#define MANUFACTURER Sacapuces +#define PRODUCT Frenchdev V1 +#define DESCRIPTION QMK keyboard firmware for Frenchdev + +/* key matrix size */ +#define MATRIX_ROWS 16 +#define MATRIX_COLS 6 + +/* number of backlight levels */ +#define BACKLIGHT_LEVELS 3 + +#define LED_BRIGHTNESS_LO 15 +#define LED_BRIGHTNESS_HI 255 + +/* Set 0 if debouncing isn't needed */ +#define DEBOUNCE 5 + +#define USB_MAX_POWER_CONSUMPTION 500 + +/* + * 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 +//#define DEBUG_MATRIX_SCAN_RATE + +#endif diff --git a/keyboards/frenchdev/v1/i2cmaster.h b/keyboards/frenchdev/v1/i2cmaster.h new file mode 100644 index 0000000000..3917b9e6c0 --- /dev/null +++ b/keyboards/frenchdev/v1/i2cmaster.h @@ -0,0 +1,178 @@ +#ifndef _I2CMASTER_H +#define _I2CMASTER_H 1 +/************************************************************************* +* Title: C include file for the I2C master interface +* (i2cmaster.S or twimaster.c) +* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury +* File: $Id: i2cmaster.h,v 1.10 2005/03/06 22:39:57 Peter Exp $ +* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3 +* Target: any AVR device +* Usage: see Doxygen manual +**************************************************************************/ + +#ifdef DOXYGEN +/** + @defgroup pfleury_ic2master I2C Master library + @code #include <i2cmaster.h> @endcode + + @brief I2C (TWI) Master Software Library + + Basic routines for communicating with I2C slave devices. This single master + implementation is limited to one bus master on the I2C bus. + + This I2c library is implemented as a compact assembler software implementation of the I2C protocol + which runs on any AVR (i2cmaster.S) and as a TWI hardware interface for all AVR with built-in TWI hardware (twimaster.c). + Since the API for these two implementations is exactly the same, an application can be linked either against the + software I2C implementation or the hardware I2C implementation. + + Use 4.7k pull-up resistor on the SDA and SCL pin. + + Adapt the SCL and SDA port and pin definitions and eventually the delay routine in the module + i2cmaster.S to your target when using the software I2C implementation ! + + Adjust the CPU clock frequence F_CPU in twimaster.c or in the Makfile when using the TWI hardware implementaion. + + @note + The module i2cmaster.S is based on the Atmel Application Note AVR300, corrected and adapted + to GNU assembler and AVR-GCC C call interface. + Replaced the incorrect quarter period delays found in AVR300 with + half period delays. + + @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury + + @par API Usage Example + The following code shows typical usage of this library, see example test_i2cmaster.c + + @code + + #include <i2cmaster.h> + + + #define Dev24C02 0xA2 // device address of EEPROM 24C02, see datasheet + + int main(void) + { + unsigned char ret; + + i2c_init(); // initialize I2C library + + // write 0x75 to EEPROM address 5 (Byte Write) + i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode + i2c_write(0x05); // write address = 5 + i2c_write(0x75); // write value 0x75 to EEPROM + i2c_stop(); // set stop conditon = release bus + + + // read previously written value back from EEPROM address 5 + i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode + + i2c_write(0x05); // write address = 5 + i2c_rep_start(Dev24C02+I2C_READ); // set device address and read mode + + ret = i2c_readNak(); // read one byte from EEPROM + i2c_stop(); + + for(;;); + } + @endcode + +*/ +#endif /* DOXYGEN */ + +/**@{*/ + +#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304 +#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !" +#endif + +#include <avr/io.h> + +/** defines the data direction (reading from I2C device) in i2c_start(),i2c_rep_start() */ +#define I2C_READ 1 + +/** defines the data direction (writing to I2C device) in i2c_start(),i2c_rep_start() */ +#define I2C_WRITE 0 + + +/** + @brief initialize the I2C master interace. Need to be called only once + @param void + @return none + */ +extern void i2c_init(void); + + +/** + @brief Terminates the data transfer and releases the I2C bus + @param void + @return none + */ +extern void i2c_stop(void); + + +/** + @brief Issues a start condition and sends address and transfer direction + + @param addr address and transfer direction of I2C device + @retval 0 device accessible + @retval 1 failed to access device + */ +extern unsigned char i2c_start(unsigned char addr); + + +/** + @brief Issues a repeated start condition and sends address and transfer direction + + @param addr address and transfer direction of I2C device + @retval 0 device accessible + @retval 1 failed to access device + */ +extern unsigned char i2c_rep_start(unsigned char addr); + + +/** + @brief Issues a start condition and sends address and transfer direction + + If device is busy, use ack polling to wait until device ready + @param addr address and transfer direction of I2C device + @return none + */ +extern void i2c_start_wait(unsigned char addr); + + +/** + @brief Send one byte to I2C device + @param data byte to be transfered + @retval 0 write successful + @retval 1 write failed + */ +extern unsigned char i2c_write(unsigned char data); + + +/** + @brief read one byte from the I2C device, request more data from device + @return byte read from I2C device + */ +extern unsigned char i2c_readAck(void); + +/** + @brief read one byte from the I2C device, read is followed by a stop condition + @return byte read from I2C device + */ +extern unsigned char i2c_readNak(void); + +/** + @brief read one byte from the I2C device + + Implemented as a macro, which calls either i2c_readAck or i2c_readNak + + @param ack 1 send ack, request more data from device<br> + 0 send nak, read is followed by a stop condition + @return byte read from I2C device + */ +extern unsigned char i2c_read(unsigned char ack); +#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak(); + + +/**@}*/ +#endif diff --git a/keyboards/frenchdev/v1/matrix.c b/keyboards/frenchdev/v1/matrix.c new file mode 100644 index 0000000000..70fa6a696d --- /dev/null +++ b/keyboards/frenchdev/v1/matrix.c @@ -0,0 +1,394 @@ +/* + +Note for ErgoDox EZ customizers: Here be dragons! +This is not a file you want to be messing with. +All of the interesting stuff for you is under keymaps/ :) +Love, Erez + +Note to self, the "column" and "row" in here actually refers to the opposite on the keyboard +see definition of KEYMAP in v1.h, the grid is transposed so that a "row" in here is actually a "column" on the physical keyboard +Nicolas + +Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com> + +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/>. +*/ + +/* + * scan matrix + */ +#include <stdint.h> +#include <stdbool.h> +#include <avr/io.h> +#include "wait.h" +#include "action_layer.h" +#include "print.h" +#include "debug.h" +#include "util.h" +#include "matrix.h" +#include "v1.h" +#include "i2cmaster.h" +#ifdef DEBUG_MATRIX_SCAN_RATE +#include "timer.h" +#endif + +/* + * This constant define not debouncing time in msecs, but amount of matrix + * scan loops which should be made to get stable debounced results. + * + * On Ergodox matrix scan rate is relatively low, because of slow I2C. + * Now it's only 317 scans/second, or about 3.15 msec/scan. + * According to Cherry specs, debouncing time is 5 msec. + * + * And so, there is no sense to have DEBOUNCE higher than 2. + */ + +#ifndef DEBOUNCE +# define DEBOUNCE 5 +#endif +static uint8_t debouncing = DEBOUNCE; + +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +static matrix_row_t read_cols(uint8_t row); +static void init_cols(void); +static void unselect_rows(void); +static void select_row(uint8_t row); + +static uint8_t mcp23018_reset_loop; + +#ifdef DEBUG_MATRIX_SCAN_RATE +uint32_t matrix_timer; +uint32_t matrix_scan_count; +#endif + + +__attribute__ ((weak)) +void matrix_init_user(void) {} + +__attribute__ ((weak)) +void matrix_scan_user(void) {} + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +inline +uint8_t matrix_rows(void) +{ + return MATRIX_ROWS; +} + +inline +uint8_t matrix_cols(void) +{ + return MATRIX_COLS; +} + +void matrix_init(void) +{ + // initialize row and col + debug_enable = true; + debug_matrix = true; + debug_keyboard = true; + debug_mouse = true; + + mcp23018_status = init_mcp23018(); + + + unselect_rows(); + init_cols(); + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + +#ifdef DEBUG_MATRIX_SCAN_RATE + matrix_timer = timer_read32(); + matrix_scan_count = 0; +#endif + + matrix_init_quantum(); + +} + +void matrix_power_up(void) { + mcp23018_status = init_mcp23018(); + + unselect_rows(); + init_cols(); + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + +#ifdef DEBUG_MATRIX_SCAN_RATE + matrix_timer = timer_read32(); + matrix_scan_count = 0; +#endif + +} + +uint8_t matrix_scan(void) +{ + if (mcp23018_status) { // if there was an error + if (++mcp23018_reset_loop == 0) { + // since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans + // this will be approx bit more frequent than once per second + print("trying to reset mcp23018\n"); + mcp23018_status = init_mcp23018(); + if (mcp23018_status) { + print("left side not responding\n"); + } else { + print("left side attached\n"); + ergodox_blink_all_leds(); + } + } + } + +#ifdef DEBUG_MATRIX_SCAN_RATE + matrix_scan_count++; + + uint32_t timer_now = timer_read32(); + if (TIMER_DIFF_32(timer_now, matrix_timer)>1000) { + print("matrix scan frequency: "); + pdec(matrix_scan_count); + print("\n"); + + matrix_timer = timer_now; + matrix_scan_count = 0; + } +#endif + + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + select_row(i); + wait_us(30); // without this wait read unstable value. + matrix_row_t cols = read_cols(i); + if (matrix_debouncing[i] != cols) { + matrix_debouncing[i] = cols; + if (debouncing) { + debug("bounce!: "); debug_hex(debouncing); debug("\n"); + } + debouncing = DEBOUNCE; + } + unselect_rows(); + } + + if (debouncing) { + if (--debouncing) { + wait_us(1); + // this should be wait_ms(1) but has been left as-is at EZ's request + } else { + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + matrix[i] = matrix_debouncing[i]; + } + } + } + + matrix_scan_quantum(); + + return 1; +} + +bool matrix_is_modified(void) +{ + if (debouncing) return false; + return true; +} + +inline +bool matrix_is_on(uint8_t row, uint8_t col) +{ + return (matrix[row] & ((matrix_row_t)1<<col)); +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +void matrix_print(void) +{ + print("\nr/c 0123456789ABCDEF\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + phex(row); print(": "); + pbin_reverse16(matrix_get_row(row)); + print("\n"); + } +} + +uint8_t matrix_key_count(void) +{ + uint8_t count = 0; + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + count += bitpop16(matrix[i]); + } + return count; +} + +/* Column pin configuration + * + * Teensy + * col: 0 1 2 3 4 5 + * pin: F0 F1 F4 F5 F6 F7 + * + * MCP23018 + * col: 0 1 2 3 4 5 + * pin: B5 B4 B3 B2 B1 B0 + */ +static void init_cols(void) +{ + // init on mcp23018 + // not needed, already done as part of init_mcp23018() + + // init on teensy + // Input with pull-up(DDR:0, PORT:1) + DDRF &= ~(1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0); + PORTF |= (1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0); +} + +static matrix_row_t read_cols(uint8_t row) +{ + if (row < 8) { + if (mcp23018_status) { // if there was an error + return 0; + } else { + uint8_t data = 0; + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPIOB); if (mcp23018_status) goto out; + mcp23018_status = i2c_start(I2C_ADDR_READ); if (mcp23018_status) goto out; + data = i2c_readNak(); + data = ~data; + out: + i2c_stop(); + return data; + } + } else { + // read from teensy + return + (PINF&(1<<0) ? 0 : (1<<0)) | + (PINF&(1<<1) ? 0 : (1<<1)) | + (PINF&(1<<4) ? 0 : (1<<2)) | + (PINF&(1<<5) ? 0 : (1<<3)) | + (PINF&(1<<6) ? 0 : (1<<4)) | + (PINF&(1<<7) ? 0 : (1<<5)) ; + } +} + +/* Row pin configuration + * + * Teensy + * row: 7 8 9 10 11 12 13 + * pin: B0 B1 B2 B3 D2 D3 C6 + * + * MCP23018 + * row: 0 1 2 3 4 5 6 + * pin: A0 A1 A2 A3 A4 A5 A6 + */ +static void unselect_rows(void) +{ + // unselect on mcp23018 + if (mcp23018_status) { // if there was an error + // do nothing + } else { + // set all rows hi-Z : 1 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write( 0xFF + & ~(0<<8) + ); if (mcp23018_status) goto out; + out: + i2c_stop(); + } + + // unselect on teensy + // Hi-Z(DDR:0, PORT:0) to unselect + DDRB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3); + PORTB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3); + DDRD &= ~(1<<2 | 1<<3); + PORTD &= ~(1<<2 | 1<<3); + DDRC &= ~(1<<6 | 1<<7); + PORTC &= ~(1<<6 | 1<<7); +} + +static void select_row(uint8_t row) +{ + if (row < 8) { + // select on mcp23018 + if (mcp23018_status) { // if there was an error + // do nothing + } else { + // set active row low : 0 + // set other rows hi-Z : 1 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write( 0xFF & ~(1<<row) + & ~(0<<8) + ); if (mcp23018_status) goto out; + out: + i2c_stop(); + } + } else { + // select on teensy + // Output low(DDR:1, PORT:0) to select + switch (row) { + case 8: + DDRB |= (1<<0); + PORTB &= ~(1<<0); + break; + case 9: + DDRB |= (1<<1); + PORTB &= ~(1<<1); + break; + case 10: + DDRB |= (1<<2); + PORTB &= ~(1<<2); + break; + case 11: + DDRB |= (1<<3); + PORTB &= ~(1<<3); + break; + case 12: + DDRD |= (1<<2); + PORTD &= ~(1<<3); + break; + case 13: + DDRD |= (1<<3); + PORTD &= ~(1<<3); + break; + case 14: + DDRC |= (1<<6); + PORTC &= ~(1<<6); + break; + case 15: + DDRC |= (1<<7); + PORTC &= ~(1<<7); + break; + } + } +} + diff --git a/keyboards/frenchdev/v1/rules.mk b/keyboards/frenchdev/v1/rules.mk new file mode 100644 index 0000000000..64b2db8158 --- /dev/null +++ b/keyboards/frenchdev/v1/rules.mk @@ -0,0 +1,80 @@ +#---------------------------------------------------------------------------- +# On command line: +# +# make = Make software. +# +# make clean = Clean out built project files. +# +# That's pretty much all you need. To compile, always go make clean, +# followed by make. +# +# For advanced users only: +# make teensy = Download the hex file to the device, using teensy_loader_cli. +# (must have teensy_loader_cli installed). +# +#---------------------------------------------------------------------------- + +# # project specific files +SRC = twimaster.c \ + matrix.c + +# MCU name +MCU = atmega32u4 + +# Processor frequency. +# This will define a symbol, F_CPU, in all source code files equal to the +# processor frequency in Hz. You can then use this symbol in your source code to +# calculate timings. Do NOT tack on a 'UL' at the end, this will be done +# automatically to create a 32-bit value in your source code. +# +# This will be an integer division of F_USB below, as it is sourced by +# F_USB after it has run through any CPU prescalers. Note that this value +# does not *change* the processor frequency - it should merely be updated to +# reflect the processor speed set externally so that the code can use accurate +# software delays. +F_CPU = 16000000 + + +# +# LUFA specific +# +# Target architecture (see library "Board Types" documentation). +ARCH = AVR8 + +# Input clock frequency. +# This will define a symbol, F_USB, in all source code files equal to the +# input clock frequency (before any prescaling is performed) in Hz. This value may +# differ from F_CPU if prescaling is used on the latter, and is required as the +# raw input clock is fed directly to the PLL sections of the AVR for high speed +# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL' +# at the end, this will be done automatically to create a 32-bit value in your +# source code. +# +# If no clock division is performed on the input clock inside the AVR (via the +# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU. +F_USB = $(F_CPU) + +# Interrupt driven control endpoint task(+60) +OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT + + +# Boot Section Size in *bytes* +# Teensy halfKay 512 +# Teensy++ halfKay 1024 +# Atmel DFU loader 4096 +# LUFA bootloader 4096 +# USBaspLoader 2048 +OPT_DEFS += -DBOOTLOADER_SIZE=512 + + +# Build Options +# comment out to disable the options. +# + +SLEEP_LED_ENABLE = no +API_SYSEX_ENABLE ?= no +RGBLIGHT_ENABLE ?= yes + +ifndef QUANTUM_DIR + include ../../../Makefile +endif diff --git a/keyboards/frenchdev/v1/twimaster.c b/keyboards/frenchdev/v1/twimaster.c new file mode 100644 index 0000000000..f91c08e6e4 --- /dev/null +++ b/keyboards/frenchdev/v1/twimaster.c @@ -0,0 +1,208 @@ +/************************************************************************* +* Title: I2C master library using hardware TWI interface +* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury +* File: $Id: twimaster.c,v 1.3 2005/07/02 11:14:21 Peter Exp $ +* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3 +* Target: any AVR device with hardware TWI +* Usage: API compatible with I2C Software Library i2cmaster.h +**************************************************************************/ +#include <inttypes.h> +#include <compat/twi.h> + +#include <i2cmaster.h> + + +/* define CPU frequency in Mhz here if not defined in Makefile */ +#ifndef F_CPU +#define F_CPU 16000000UL +#endif + +/* I2C clock in Hz */ +#define SCL_CLOCK 400000L + + +/************************************************************************* + Initialization of the I2C bus interface. Need to be called only once +*************************************************************************/ +void i2c_init(void) +{ + /* initialize TWI clock + * minimal values in Bit Rate Register (TWBR) and minimal Prescaler + * bits in the TWI Status Register should give us maximal possible + * I2C bus speed - about 444 kHz + * + * for more details, see 20.5.2 in ATmega16/32 secification + */ + + TWSR = 0; /* no prescaler */ + TWBR = 10; /* must be >= 10 for stable operation */ + +}/* i2c_init */ + + +/************************************************************************* + Issues a start condition and sends address and transfer direction. + return 0 = device accessible, 1= failed to access device +*************************************************************************/ +unsigned char i2c_start(unsigned char address) +{ + uint8_t twst; + + // send START condition + TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN); + + // wait until transmission completed + while(!(TWCR & (1<<TWINT))); + + // check value of TWI Status Register. Mask prescaler bits. + twst = TW_STATUS & 0xF8; + if ( (twst != TW_START) && (twst != TW_REP_START)) return 1; + + // send device address + TWDR = address; + TWCR = (1<<TWINT) | (1<<TWEN); + + // wail until transmission completed and ACK/NACK has been received + while(!(TWCR & (1<<TWINT))); + + // check value of TWI Status Register. Mask prescaler bits. + twst = TW_STATUS & 0xF8; + if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1; + + return 0; + +}/* i2c_start */ + + +/************************************************************************* + Issues a start condition and sends address and transfer direction. + If device is busy, use ack polling to wait until device is ready + + Input: address and transfer direction of I2C device +*************************************************************************/ +void i2c_start_wait(unsigned char address) +{ + uint8_t twst; + + + while ( 1 ) + { + // send START condition + TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN); + + // wait until transmission completed + while(!(TWCR & (1<<TWINT))); + + // check value of TWI Status Register. Mask prescaler bits. + twst = TW_STATUS & 0xF8; + if ( (twst != TW_START) && (twst != TW_REP_START)) continue; + + // send device address + TWDR = address; + TWCR = (1<<TWINT) | (1<<TWEN); + + // wail until transmission completed + while(!(TWCR & (1<<TWINT))); + + // check value of TWI Status Register. Mask prescaler bits. + twst = TW_STATUS & 0xF8; + if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) ) + { + /* device busy, send stop condition to terminate write operation */ + TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO); + + // wait until stop condition is executed and bus released + while(TWCR & (1<<TWSTO)); + + continue; + } + //if( twst != TW_MT_SLA_ACK) return 1; + break; + } + +}/* i2c_start_wait */ + + +/************************************************************************* + Issues a repeated start condition and sends address and transfer direction + + Input: address and transfer direction of I2C device + + Return: 0 device accessible + 1 failed to access device +*************************************************************************/ +unsigned char i2c_rep_start(unsigned char address) +{ + return i2c_start( address ); + +}/* i2c_rep_start */ + + +/************************************************************************* + Terminates the data transfer and releases the I2C bus +*************************************************************************/ +void i2c_stop(void) +{ + /* send stop condition */ + TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO); + + // wait until stop condition is executed and bus released + while(TWCR & (1<<TWSTO)); + +}/* i2c_stop */ + + +/************************************************************************* + Send one byte to I2C device + + Input: byte to be transfered + Return: 0 write successful + 1 write failed +*************************************************************************/ +unsigned char i2c_write( unsigned char data ) +{ + uint8_t twst; + + // send data to the previously addressed device + TWDR = data; + TWCR = (1<<TWINT) | (1<<TWEN); + + // wait until transmission completed + while(!(TWCR & (1<<TWINT))); + + // check value of TWI Status Register. Mask prescaler bits + twst = TW_STATUS & 0xF8; + if( twst != TW_MT_DATA_ACK) return 1; + return 0; + +}/* i2c_write */ + + +/************************************************************************* + Read one byte from the I2C device, request more data from device + + Return: byte read from I2C device +*************************************************************************/ +unsigned char i2c_readAck(void) +{ + TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA); + while(!(TWCR & (1<<TWINT))); + + return TWDR; + +}/* i2c_readAck */ + + +/************************************************************************* + Read one byte from the I2C device, read is followed by a stop condition + + Return: byte read from I2C device +*************************************************************************/ +unsigned char i2c_readNak(void) +{ + TWCR = (1<<TWINT) | (1<<TWEN); + while(!(TWCR & (1<<TWINT))); + + return TWDR; + +}/* i2c_readNak */ diff --git a/keyboards/frenchdev/v1/v1.c b/keyboards/frenchdev/v1/v1.c new file mode 100644 index 0000000000..71c4b5cf57 --- /dev/null +++ b/keyboards/frenchdev/v1/v1.c @@ -0,0 +1,86 @@ +#include "v1.h" +#include "i2cmaster.h" + +bool i2c_initialized = 0; +uint8_t mcp23018_status = 0x20; + +void matrix_init_kb(void) { + // keyboard LEDs (see "PWM on ports OC1(A|B|C)" in "teensy-2-0.md") + TCCR1A = 0b10101001; // set and configure fast PWM + TCCR1B = 0b00001001; // set and configure fast PWM + + + + // unused pins - D4, D5, D7, E6 + // set as input with internal pull-ip enabled + DDRD &= ~(1<<5 | 1<<4); + DDRE &= ~(1<<6); + PORTD |= (1<<5 | 1<<4); + PORTE |= (1<<6); + + ergodox_blink_all_leds(); + + matrix_init_user(); +} + +void ergodox_blink_all_leds(void) +{ + ergodox_led_all_off(); + ergodox_led_all_set(LED_BRIGHTNESS_HI); + ergodox_right_led_1_on(); + _delay_ms(50); + ergodox_right_led_2_on(); + _delay_ms(50); + ergodox_right_led_3_on(); + _delay_ms(50); + ergodox_right_led_1_off(); + _delay_ms(50); + ergodox_right_led_2_off(); + _delay_ms(50); + ergodox_right_led_3_off(); + //ergodox_led_all_on(); + //_delay_ms(333); + ergodox_led_all_off(); +} + +uint8_t init_mcp23018(void) { + mcp23018_status = 0x20; + + // I2C subsystem + + // uint8_t sreg_prev; + // sreg_prev=SREG; + // cli(); + if (i2c_initialized == 0) { + i2c_init(); // on pins D(1,0) + i2c_initialized++; + _delay_ms(1000); + } + + // set pin direction + // - unused : input : 1 + // - input : input : 1 + // - driving : output : 0 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out; + i2c_stop(); + + // set pull-up + // - unused : on : 1 + // - input : on : 1 + // - driving : off : 0 + mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out; + mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out; + +out: + i2c_stop(); + + // SREG=sreg_prev; + + return mcp23018_status; +} + diff --git a/keyboards/frenchdev/v1/v1.h b/keyboards/frenchdev/v1/v1.h new file mode 100644 index 0000000000..4ef7a3512e --- /dev/null +++ b/keyboards/frenchdev/v1/v1.h @@ -0,0 +1,116 @@ +#ifndef FRENCHDEV_V1_H +#define FRENCHDEV_V1_H + +#include "quantum.h" +#include <stdint.h> +#include <stdbool.h> +#include "i2cmaster.h" +#include <util/delay.h> + +#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n)) +#define CPU_16MHz 0x00 + +// I2C aliases and register addresses (see "mcp23018.md") +#define I2C_ADDR 0b0100000 +#define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE ) +#define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ ) +#define IODIRA 0x00 // i/o direction register +#define IODIRB 0x01 +#define GPPUA 0x0C // GPIO pull-up resistor register +#define GPPUB 0x0D +#define GPIOA 0x12 // general purpose i/o port re |