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-rw-r--r--drivers/chibios/serial_usart.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/chibios/serial_usart.h b/drivers/chibios/serial_usart.h
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index 0000000000..d35b5d12c6
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+++ b/drivers/chibios/serial_usart.h
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+/* Copyright 2021 QMK
+ *
+ * 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 3 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 "quantum.h"
+#include "serial.h"
+#include "printf.h"
+
+#include <ch.h>
+#include <hal.h>
+
+#ifndef USART_CR1_M0
+# define USART_CR1_M0 USART_CR1_M // some platforms (f1xx) dont have this so
+#endif
+
+#ifndef SERIAL_USART_CR1
+# define SERIAL_USART_CR1 (USART_CR1_PCE | USART_CR1_PS | USART_CR1_M0) // parity enable, odd parity, 9 bit length
+#endif
+
+#ifndef SERIAL_USART_CR2
+# define SERIAL_USART_CR2 (USART_CR2_STOP_1) // 2 stop bits
+#endif
+
+#ifndef SERIAL_USART_CR3
+# define SERIAL_USART_CR3 0
+#endif
+
+#if defined(USART1_REMAP)
+# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART1_REMAP); } while(0)
+#elif defined(USART2_REMAP)
+# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART2_REMAP); } while(0)
+#elif defined(USART3_PARTIALREMAP)
+# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_PARTIALREMAP); } while(0)
+#elif defined(USART3_FULLREMAP)
+# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_FULLREMAP); } while(0)
+#endif
+
+#ifndef SELECT_SOFT_SERIAL_SPEED
+# define SELECT_SOFT_SERIAL_SPEED 1
+#endif
+
+#ifdef SERIAL_USART_SPEED
+// Allow advanced users to directly set SERIAL_USART_SPEED
+#elif SELECT_SOFT_SERIAL_SPEED == 0
+# define SERIAL_USART_SPEED 460800
+#elif SELECT_SOFT_SERIAL_SPEED == 1
+# define SERIAL_USART_SPEED 230400
+#elif SELECT_SOFT_SERIAL_SPEED == 2
+# define SERIAL_USART_SPEED 115200
+#elif SELECT_SOFT_SERIAL_SPEED == 3
+# define SERIAL_USART_SPEED 57600
+#elif SELECT_SOFT_SERIAL_SPEED == 4
+# define SERIAL_USART_SPEED 38400
+#elif SELECT_SOFT_SERIAL_SPEED == 5
+# define SERIAL_USART_SPEED 19200
+#else
+# error invalid SELECT_SOFT_SERIAL_SPEED value
+#endif
+
+#ifndef SERIAL_USART_TIMEOUT
+# define SERIAL_USART_TIMEOUT 100
+#endif
+
+#define HANDSHAKE_MAGIC 7