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/*******************************************************************************
* configs/hn70ap/src/bootloader_uart.h
*
* Copyright (C) 2016-2018 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/
#ifndef BOOTLOADER_UART
#define BOOTLOADER_UART
#include <stdint.h>
//reg offsets
#define USART_OFF_SR 0x00
#define USART_OFF_DR 0x04
#define USART_OFF_BRR 0x08
#define USART_OFF_CR1 0x0C
#define USART_OFF_CR2 0x10
#define USART_OFF_CR3 0x14
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//bits values
#define USART_SR_CTS (1<<9)
#define USART_SR_LBD (1<<8)
#define USART_SR_TXE (1<<7)
#define USART_SR_TC (1<<6)
#define USART_SR_RXNE (1<<5)
#define USART_SR_IDLE (1<<4)
#define USART_SR_ORE (1<<3)
#define USART_SR_NF (1<<2)
#define USART_SR_FE (1<<1)
#define USART_SR_PE (1<<0)
#define USART_CR1_OVER8 (1<<15)
#define USART_CR1_UE (1<<13)
#define USART_CR1_M (1<<12)
#define USART_CR1_WAKE (1<<11)
#define USART_CR1_PCE (1<<10)
#define USART_CR1_PS (1<<9)
#define USART_CR1_PEIE (1<<8)
#define USART_CR1_TXEIE (1<<7)
#define USART_CR1_TCIE (1<<6)
#define USART_CR1_RXNEIE (1<<5)
#define USART_CR1_IDLEIE (1<<4)
#define USART_CR1_TE (1<<3)
#define USART_CR1_RE (1<<2)
#define USART_CR1_RWU (1<<1)
#define USART_CR1_SBK (1<<0)
#define USART_CR2_LINEN (1<<14)
#define USART_CR2_STOP_SHIFT 12
#define USART_CR2_STOP_MASK (3<< USART_CR2_STOP_SHIFT)
#define USART_CR2_CLKEN (1<<11)
#define USART_CR2_CPOL (1<<10)
#define USART_CR2_CPHA (1<<9)
#define USART_CR2_LBCL (1<<8)
#define USART_CR2_LBDIE (1<<7)
#define USART_CR2_LBDL (1<<6)
#define USART_CR2_ADD_SHIFT 0
#define USART_CR2_ADD_MASK (31 << USART_CR2_ADD_SHIFT)
#define USART_CR3_ONEBIT (1<<11)
#define USART_CR3_CTSIE (1<<10)
#define USART_CR3_CTSE (1<<9)
#define USART_CR3_RTSE (1<<8)
#define USART_CR3_DMAT (1<<7)
#define USART_CR3_DMAR (1<<6)
#define USART_CR3_SCEN (1<<5)
#define USART_CR3_NACK (1<<4)
#define USART_CR3_HDSEL (1<<3)
#define USART_CR3_IRLP (1<<2)
#define USART_CR3_IREN (1<<1)
#define USART_CR3_EIE (1<<0)
void bootloader_uart_init(uint32_t uartid);
void bootloader_uart_setbaud(uint32_t uartid, uint32_t baud);
void bootloader_uart_send(uint32_t uartid, int data);
void bootloader_uart_write_string(uint32_t uartid, const char *s);
#endif /* BOOTLOADER_UART */