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[Keyboard] Refactor budget96 to remove custom i2c code in favor of QMK i2c_master (#5571)

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* remove custom i2c code in favor of QMK i2c_master

* fix readme

* disable bootmagic as it doesn't work on bmc boards
This commit is contained in:
MechMerlin 2019-04-07 07:34:01 -07:00 committed by Drashna Jaelre
parent b8f7834051
commit a8e3462b4b
6 changed files with 6 additions and 142 deletions
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4
keyboards/donutcables/budget96/budget96.c
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@ -25,7 +25,7 @@
#include <avr/pgmspace.h>
#include "action_layer.h"
#include "i2c.h"
#include "i2c_master.h"
#include "quantum.h"
__attribute__ ((weak))
@ -45,7 +45,7 @@ void rgblight_set(void) {
}
i2c_init();
i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
}
#endif

6
keyboards/donutcables/budget96/config.h
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@ -39,9 +39,3 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define NO_BACKLIGHT_CLOCK
#define BACKLIGHT_LEVELS 1
#define RGBLIGHT_ANIMATIONS
// Set bootmagic lite key to the key commonly programmed as Esc.
#define BOOTMAGIC_LITE_ROW 5
#define BOOTMAGIC_LITE_COLUMN 0
/* key combination for command */

106
keyboards/donutcables/budget96/i2c.c
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@ -1,106 +0,0 @@
/*
Copyright 2016 Luiz Ribeiro <luizribeiro@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/>.
*/
// Please do not modify this file
#include <avr/io.h>
#include <util/twi.h>
#include "i2c.h"
void i2c_set_bitrate(uint16_t bitrate_khz) {
uint8_t bitrate_div = ((F_CPU / 1000l) / bitrate_khz);
if (bitrate_div >= 16) {
bitrate_div = (bitrate_div - 16) / 2;
}
TWBR = bitrate_div;
}
void i2c_init(void) {
// set pull-up resistors on I2C bus pins
PORTC |= 0b11;
i2c_set_bitrate(400);
// enable TWI (two-wire interface)
TWCR |= (1 << TWEN);
// enable TWI interrupt and slave address ACK
TWCR |= (1 << TWIE);
TWCR |= (1 << TWEA);
}
uint8_t i2c_start(uint8_t address) {
// reset TWI control register
TWCR = 0;
// begin transmission and wait for it to end
TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
while (!(TWCR & (1<<TWINT)));
// check if the start condition was successfully transmitted
if ((TWSR & 0xF8) != TW_START) {
return 1;
}
// transmit address and wait
TWDR = address;
TWCR = (1<<TWINT) | (1<<TWEN);
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;
}
void i2c_stop(void) {
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
}
uint8_t i2c_write(uint8_t data) {
TWDR = data;
// transmit data and wait
TWCR = (1<<TWINT) | (1<<TWEN);
while (!(TWCR & (1<<TWINT)));
if ((TWSR & 0xF8) != TW_MT_DATA_ACK) {
return 1;
}
return 0;
}
uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length) {
if (i2c_start(address)) {
return 1;
}
for (uint16_t i = 0; i < length; i++) {
if (i2c_write(data[i])) {
return 1;
}
}
i2c_stop();
return 0;
}

24
keyboards/donutcables/budget96/i2c.h
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@ -1,24 +0,0 @@
/*
Copyright 2016 Luiz Ribeiro <luizribeiro@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/>.
*/
// Please do not modify this file
#pragma once
void i2c_init(void);
void i2c_set_bitrate(uint16_t bitrate_khz);
uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length);

4
keyboards/donutcables/budget96/readme.md
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@ -12,7 +12,7 @@ Make example for this keyboard (after setting up your build environment):
Flashing
**Reset Key:** Hold down the key located at `K00`, commonly programmed as left control while plugging in the keyboard. You may also hold down the key located at `K50`, commonly programmed as the `Esc` key.
**Reset Key:** Hold down the key located at `K00`, commonly programmed as left control while plugging in the keyboard.
ps2avr(GB) boards use an atmega32a microcontroller and a different bootloader. It is not flashable using the regular QMK methods.
@ -34,7 +34,7 @@ macOS:
```
3. Install the following packages:
```
brew install python
brew install python3
pip3 install pyusb
brew install --HEAD https://raw.githubusercontent.com/robertgzr/homebrew-tap/master/bootloadhid.rb

4
keyboards/donutcables/budget96/rules.mk
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@ -31,7 +31,7 @@ F_CPU = 12000000
BOOTLOADER = bootloadHID
# build options
BOOTMAGIC_ENABLE = lite
BOOTMAGIC_ENABLE = no
MOUSEKEY_ENABLE = yes
EXTRAKEY_ENABLE = yes
CONSOLE_ENABLE = yes
@ -43,7 +43,7 @@ RGBLIGHT_CUSTOM_DRIVER = yes
OPT_DEFS = -DDEBUG_LEVEL=0
# custom matrix setup
SRC = i2c.c
SRC = i2c_master.c
# programming options
PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex