diff options
author | Nick Brassel <nick@tzarc.org> | 2021-02-28 07:22:21 +1100 |
---|---|---|
committer | Nick Brassel <nick@tzarc.org> | 2021-02-28 07:22:21 +1100 |
commit | 1a5f6b54aff179732e3f4f4eb79e47454f0a1eb5 (patch) | |
tree | ebf645f55cb0442899c894765b1af4344fb734db /drivers/avr | |
parent | 804d5c1c5d59d9a12c1d793289ccbd59cb650ec2 (diff) | |
parent | 624359b725c9bfe8176cf72cdc2c8bbb7513949f (diff) |
2021 February 27 Breaking Changes Update (#12040)
Diffstat (limited to 'drivers/avr')
-rw-r--r-- | drivers/avr/apa102.c | 96 | ||||
-rw-r--r-- | drivers/avr/apa102.h | 45 | ||||
-rw-r--r-- | drivers/avr/serial.c | 6 | ||||
-rw-r--r-- | drivers/avr/spi_master.c | 2 | ||||
-rw-r--r-- | drivers/avr/spi_master.h | 2 | ||||
-rw-r--r-- | drivers/avr/uart.c | 170 | ||||
-rw-r--r-- | drivers/avr/uart.h | 35 |
7 files changed, 210 insertions, 146 deletions
diff --git a/drivers/avr/apa102.c b/drivers/avr/apa102.c deleted file mode 100644 index 740acb5739..0000000000 --- a/drivers/avr/apa102.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - * APA102 lib V1.0a - * - * Controls APA102 RGB-LEDs - * Author: Mikkel (Duckle29 on GitHub) - * - * Dec 22th, 2017 v1.0a Initial Version - * - * 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 "apa102.h" -#include <avr/interrupt.h> -#include <avr/io.h> -#include <util/delay.h> -#include "debug.h" - -// Setleds for standard RGB -void inline apa102_setleds(LED_TYPE *ledarray, uint16_t leds) { apa102_setleds_pin(ledarray, leds, _BV(RGB_DI_PIN & 0xF), _BV(RGB_CLK_PIN & 0xF)); } - -void static inline apa102_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask_DI, uint8_t pinmask_CLK) { - setPinOutput(RGB_DI_PIN); - setPinOutput(RGB_CLK_PIN); - - apa102_send_array((uint8_t *)ledarray, leds) -} - -void apa102_send_array(uint8_t *data, uint16_t leds) { // Data is struct of 3 bytes. RGB - leds is number of leds in data - apa102_start_frame(); - while (leds--) { - apa102_send_frame(0xFF000000 | (data->b << 16) | (data->g << 8) | data->r); - data++; - } - apa102_end_frame(leds); -} - -void apa102_send_frame(uint32_t frame) { - for (uint32_t i = 0xFF; i > 0;) { - apa102_send_byte(frame & i); - i = i << 8; - } -} - -void apa102_start_frame() { apa102_send_frame(0); } - -void apa102_end_frame(uint16_t leds) { - // This function has been taken from: https://github.com/pololu/apa102-arduino/blob/master/APA102.h - // and adapted. The code is MIT licensed. I think thats compatible? - - // We need to send some more bytes to ensure that all the LEDs in the - // chain see their new color and start displaying it. - // - // The data stream seen by the last LED in the chain will be delayed by - // (count - 1) clock edges, because each LED before it inverts the clock - // line and delays the data by one clock edge. Therefore, to make sure - // the last LED actually receives the data we wrote, the number of extra - // edges we send at the end of the frame must be at least (count - 1). - // For the APA102C, that is sufficient. - // - // The SK9822 only updates after it sees 32 zero bits followed by one more - // rising edge. To avoid having the update time depend on the color of - // the last LED, we send a dummy 0xFF byte. (Unfortunately, this means - // that partial updates of the beginning of an LED strip are not possible; - // the LED after the last one you are trying to update will be black.) - // After that, to ensure that the last LED in the chain sees 32 zero bits - // and a rising edge, we need to send at least 65 + (count - 1) edges. It - // is sufficent and simpler to just send (5 + count/16) bytes of zeros. - // - // We are ignoring the specification for the end frame in the APA102/SK9822 - // datasheets because it does not actually ensure that all the LEDs will - // start displaying their new colors right away. - - apa102_send_byte(0xFF); - for (uint16_t i = 0; i < 5 + leds / 16; i++) { - apa102_send_byte(0); - } -} - -void apa102_send_byte(uint8_t byte) { - uint8_t i; - for (i = 0; i < 8; i++) { - writePin(RGB_DI_PIN, !!(byte & (1 << (7 - i)))); - writePinHigh(RGB_CLK_PIN); - } -} diff --git a/drivers/avr/apa102.h b/drivers/avr/apa102.h deleted file mode 100644 index d4c1e18ee1..0000000000 --- a/drivers/avr/apa102.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * light weight WS2812 lib include - * - * Version 2.3 - Nev 29th 2015 - * Author: Tim (cpldcpu@gmail.com) - * - * Please do not change this file! All configuration is handled in "ws2812_config.h" - * - * 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 <avr/io.h> -#include <avr/interrupt.h> - -#include "color.h" - -/* User Interface - * - * Input: - * ledarray: An array of GRB data describing the LED colors - * number_of_leds: The number of LEDs to write - * pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0) - * - * The functions will perform the following actions: - * - Set the data-out pin as output - * - Send out the LED data - * - Wait 50�s to reset the LEDs - */ - -void apa102_setleds(LED_TYPE *ledarray, uint16_t number_of_leds); -void apa102_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pinmask); -void apa102_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds); diff --git a/drivers/avr/serial.c b/drivers/avr/serial.c index 526a0946b2..3647bee0d3 100644 --- a/drivers/avr/serial.c +++ b/drivers/avr/serial.c @@ -20,7 +20,7 @@ #ifdef SOFT_SERIAL_PIN -# if !(defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) +# if !(defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) # error serial.c is not supported for the currently selected MCU # endif // if using ATmega32U4/2, AT90USBxxx I2C, can not use PD0 and PD1 in soft serial. @@ -52,8 +52,8 @@ # define EICRx EICRA # endif -// ATmegaxxU2 specific config -# if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) +// ATmegaxxU2/AT90USB162 specific config +# if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_AT90USB162__) // PD4(INT5), PD6(INT6), PD7(INT7), PC7(INT4) # if SOFT_SERIAL_PIN == D4 # define EIMSK_BIT _BV(INT5) diff --git a/drivers/avr/spi_master.c b/drivers/avr/spi_master.c index cbec9f36e1..19ca0ced44 100644 --- a/drivers/avr/spi_master.c +++ b/drivers/avr/spi_master.c @@ -20,7 +20,7 @@ #include "quantum.h" #include "timer.h" -#if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) +#if defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) # define SPI_SCK_PIN B1 # define SPI_MOSI_PIN B2 # define SPI_MISO_PIN B3 diff --git a/drivers/avr/spi_master.h b/drivers/avr/spi_master.h index e36a7c21c0..9203698dd5 100644 --- a/drivers/avr/spi_master.h +++ b/drivers/avr/spi_master.h @@ -21,7 +21,7 @@ typedef int16_t spi_status_t; // Hardware SS pin is defined in the header so that user code can refer to it -#if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) +#if defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) # define SPI_SS_PIN B0 #elif defined(__AVR_ATmega32A__) # define SPI_SS_PIN B4 diff --git a/drivers/avr/uart.c b/drivers/avr/uart.c new file mode 100644 index 0000000000..c6abcb6fe0 --- /dev/null +++ b/drivers/avr/uart.c @@ -0,0 +1,170 @@ +/* UART Example for Teensy USB Development Board + * http://www.pjrc.com/teensy/ + * Copyright (c) 2009 PJRC.COM, LLC + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// Version 1.0: Initial Release +// Version 1.1: Add support for Teensy 2.0, minor optimizations + +#include <avr/io.h> +#include <avr/interrupt.h> + +#include "uart.h" + +#if defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) +# define UDRn UDR1 +# define UBRRnL UBRR1L +# define UCSRnA UCSR1A +# define UCSRnB UCSR1B +# define UCSRnC UCSR1C +# define U2Xn U2X1 +# define RXENn RXEN1 +# define TXENn TXEN1 +# define RXCIEn RXCIE1 +# define UCSZn1 UCSZ11 +# define UCSZn0 UCSZ10 +# define UDRIEn UDRIE1 +# define USARTn_UDRE_vect USART1_UDRE_vect +# define USARTn_RX_vect USART1_RX_vect +#elif defined(__AVR_ATmega32A__) +# define UDRn UDR +# define UBRRnL UBRRL +# define UCSRnA UCSRA +# define UCSRnB UCSRB +# define UCSRnC UCSRC +# define U2Xn U2X +# define RXENn RXEN +# define TXENn TXEN +# define RXCIEn RXCIE +# define UCSZn1 UCSZ1 +# define UCSZn0 UCSZ0 +# define UDRIEn UDRIE +# define USARTn_UDRE_vect USART_UDRE_vect +# define USARTn_RX_vect USART_RX_vect +#elif defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__) +# define UDRn UDR0 +# define UBRRnL UBRR0L +# define UCSRnA UCSR0A +# define UCSRnB UCSR0B +# define UCSRnC UCSR0C +# define U2Xn U2X0 +# define RXENn RXEN0 +# define TXENn TXEN0 +# define RXCIEn RXCIE0 +# define UCSZn1 UCSZ01 +# define UCSZn0 UCSZ00 +# define UDRIEn UDRIE0 +# define USARTn_UDRE_vect USART_UDRE_vect +# define USARTn_RX_vect USART_RX_vect +#endif + +// These buffers may be any size from 2 to 256 bytes. +#define RX_BUFFER_SIZE 64 +#define TX_BUFFER_SIZE 256 + +static volatile uint8_t tx_buffer[TX_BUFFER_SIZE]; +static volatile uint8_t tx_buffer_head; +static volatile uint8_t tx_buffer_tail; +static volatile uint8_t rx_buffer[RX_BUFFER_SIZE]; +static volatile uint8_t rx_buffer_head; +static volatile uint8_t rx_buffer_tail; + +// Initialize the UART +void uart_init(uint32_t baud) { + cli(); + UBRRnL = (F_CPU / 4 / baud - 1) / 2; + UCSRnA = (1 << U2Xn); + UCSRnB = (1 << RXENn) | (1 << TXENn) | (1 << RXCIEn); + UCSRnC = (1 << UCSZn1) | (1 << UCSZn0); + tx_buffer_head = tx_buffer_tail = 0; + rx_buffer_head = rx_buffer_tail = 0; + sei(); +} + +// Transmit a byte +void uart_putchar(uint8_t c) { + uint8_t i; + + i = tx_buffer_head + 1; + if (i >= TX_BUFFER_SIZE) i = 0; + // return immediately to avoid deadlock when interrupt is disabled(called from ISR) + if (tx_buffer_tail == i && (SREG & (1 << SREG_I)) == 0) return; + while (tx_buffer_tail == i) + ; // wait until space in buffer + // cli(); + tx_buffer[i] = c; + tx_buffer_head = i; + UCSRnB = (1 << RXENn) | (1 << TXENn) | (1 << RXCIEn) | (1 << UDRIEn); + // sei(); +} + +// Receive a byte +uint8_t uart_getchar(void) { + uint8_t c, i; + + while (rx_buffer_head == rx_buffer_tail) + ; // wait for character + i = rx_buffer_tail + 1; + if (i >= RX_BUFFER_SIZE) i = 0; + c = rx_buffer[i]; + rx_buffer_tail = i; + return c; +} + +// Return whether the number of bytes waiting in the receive buffer is nonzero. +// Call this before uart_getchar() to check if it will need +// to wait for a byte to arrive. +bool uart_available(void) { + uint8_t head, tail; + + head = rx_buffer_head; + tail = rx_buffer_tail; + if (head >= tail) return (head - tail) > 0; + return (RX_BUFFER_SIZE + head - tail) > 0; +} + +// Transmit Interrupt +ISR(USARTn_UDRE_vect) { + uint8_t i; + + if (tx_buffer_head == tx_buffer_tail) { + // buffer is empty, disable transmit interrupt + UCSRnB = (1 << RXENn) | (1 << TXENn) | (1 << RXCIEn); + } else { + i = tx_buffer_tail + 1; + if (i >= TX_BUFFER_SIZE) i = 0; + UDRn = tx_buffer[i]; + tx_buffer_tail = i; + } +} + +// Receive Interrupt +ISR(USARTn_RX_vect) { + uint8_t c, i; + + c = UDRn; + i = rx_buffer_head + 1; + if (i >= RX_BUFFER_SIZE) i = 0; + if (i != rx_buffer_tail) { + rx_buffer[i] = c; + rx_buffer_head = i; + } +} diff --git a/drivers/avr/uart.h b/drivers/avr/uart.h new file mode 100644 index 0000000000..602eb3d8b0 --- /dev/null +++ b/drivers/avr/uart.h @@ -0,0 +1,35 @@ +/* UART Example for Teensy USB Development Board + * http://www.pjrc.com/teensy/ + * Copyright (c) 2009 PJRC.COM, LLC + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#pragma once + +#include <stdint.h> +#include <stdbool.h> + +void uart_init(uint32_t baud); + +void uart_putchar(uint8_t c); + +uint8_t uart_getchar(void); + +bool uart_available(void); |