motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 14:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

hw/misc: Implement STM32L4x5 EXTI

Browse source 
Although very similar to the STM32F4xx EXTI, STM32L4x5 EXTI generates
more than 32 event/interrupt requests and thus uses more registers
than STM32F4xx EXTI which generates 23 event/interrupt requests.

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240109160658.311932-2-ines.varhol@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Inès Varhol 2024-01-09 17:06:02 +01:00 • committed by Peter Maydell
parent 8cf1da7291
commit c9948fdd02
6 changed files with 352 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

51
include/hw/misc/stm32l4x5_exti.h Normal file
View file

@ -0,0 +1,51 @@
/*
* STM32L4x5 EXTI (Extended interrupts and events controller)
*
* Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
* Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
* This work is based on the stm32f4xx_exti by Alistair Francis.
* Original code is licensed under the MIT License:
*
* Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
*/
/*
* The reference used is the STMicroElectronics RM0351 Reference manual
* for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs.
* https://www.st.com/en/microcontrollers-microprocessors/stm32l4x5/documentation.html
*/
#ifndef HW_STM32L4X5_EXTI_H
#define HW_STM32L4X5_EXTI_H
#include "hw/sysbus.h"
#include "qom/object.h"
#define TYPE_STM32L4X5_EXTI "stm32l4x5-exti"
OBJECT_DECLARE_SIMPLE_TYPE(Stm32l4x5ExtiState, STM32L4X5_EXTI)
#define EXTI_NUM_INTERRUPT_OUT_LINES 40
#define EXTI_NUM_REGISTER 2
struct Stm32l4x5ExtiState {
SysBusDevice parent_obj;
MemoryRegion mmio;
uint32_t imr[EXTI_NUM_REGISTER];
uint32_t emr[EXTI_NUM_REGISTER];
uint32_t rtsr[EXTI_NUM_REGISTER];
uint32_t ftsr[EXTI_NUM_REGISTER];
uint32_t swier[EXTI_NUM_REGISTER];
uint32_t pr[EXTI_NUM_REGISTER];
qemu_irq irq[EXTI_NUM_INTERRUPT_OUT_LINES];
};
#endif