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stm32f2xx_USART: Add the stm32f2xx USART Controller

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This patch adds the stm32f2xx USART controller
(UART also uses the same controller).

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 762c6c0d2a41d574932bc4445ec9bfffe6da8798.1424175342.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alistair Francis 2015-03-11 13:21:05 +00:00 • committed by Peter Maydell
parent be28470514
commit 73af5d1115
4 changed files with 304 additions and 0 deletions
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73
include/hw/char/stm32f2xx_usart.h Normal file
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/*
* STM32F2XX USART
*
* Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
*
* 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.
*/
#ifndef HW_STM32F2XX_USART_H
#define HW_STM32F2XX_USART_H
#include "hw/sysbus.h"
#include "sysemu/char.h"
#include "hw/hw.h"
#define USART_SR 0x00
#define USART_DR 0x04
#define USART_BRR 0x08
#define USART_CR1 0x0C
#define USART_CR2 0x10
#define USART_CR3 0x14
#define USART_GTPR 0x18
#define USART_SR_RESET 0x00C00000
#define USART_SR_TXE (1 << 7)
#define USART_SR_TC (1 << 6)
#define USART_SR_RXNE (1 << 5)
#define USART_CR1_UE (1 << 13)
#define USART_CR1_RXNEIE (1 << 5)
#define USART_CR1_TE (1 << 3)
#define USART_CR1_RE (1 << 2)
#define TYPE_STM32F2XX_USART "stm32f2xx-usart"
#define STM32F2XX_USART(obj) \
OBJECT_CHECK(STM32F2XXUsartState, (obj), TYPE_STM32F2XX_USART)
typedef struct {
/* <private> */
SysBusDevice parent_obj;
/* <public> */
MemoryRegion mmio;
uint32_t usart_sr;
uint32_t usart_dr;
uint32_t usart_brr;
uint32_t usart_cr1;
uint32_t usart_cr2;
uint32_t usart_cr3;
uint32_t usart_gtpr;
CharDriverState *chr;
qemu_irq irq;
} STM32F2XXUsartState;
#endif /* HW_STM32F2XX_USART_H */