7a5951f651
A number of headers neglect to include everything they need. They compile only if the headers they need are already included from elsewhere. Fix that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221222120813.727830-3-armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
|
|
* ARM CMSDK APB UART emulation
|
|
*
|
|
* Copyright (c) 2017 Linaro Limited
|
|
* Written by Peter Maydell
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef CMSDK_APB_UART_H
|
|
#define CMSDK_APB_UART_H
|
|
|
|
#include "hw/qdev-properties.h"
|
|
#include "hw/sysbus.h"
|
|
#include "chardev/char-fe.h"
|
|
#include "qapi/error.h"
|
|
#include "qom/object.h"
|
|
|
|
#define TYPE_CMSDK_APB_UART "cmsdk-apb-uart"
|
|
OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBUART, CMSDK_APB_UART)
|
|
|
|
struct CMSDKAPBUART {
|
|
/*< private >*/
|
|
SysBusDevice parent_obj;
|
|
|
|
/*< public >*/
|
|
MemoryRegion iomem;
|
|
CharBackend chr;
|
|
qemu_irq txint;
|
|
qemu_irq rxint;
|
|
qemu_irq txovrint;
|
|
qemu_irq rxovrint;
|
|
qemu_irq uartint;
|
|
guint watch_tag;
|
|
uint32_t pclk_frq;
|
|
|
|
uint32_t state;
|
|
uint32_t ctrl;
|
|
uint32_t intstatus;
|
|
uint32_t bauddiv;
|
|
/* This UART has no FIFO, only a 1-character buffer for each of Tx and Rx */
|
|
uint8_t txbuf;
|
|
uint8_t rxbuf;
|
|
};
|
|
|
|
/**
|
|
* cmsdk_apb_uart_create - convenience function to create TYPE_CMSDK_APB_UART
|
|
* @addr: location in system memory to map registers
|
|
* @chr: Chardev backend to connect UART to, or NULL if no backend
|
|
* @pclk_frq: frequency in Hz of the PCLK clock (used for calculating baud rate)
|
|
*/
|
|
static inline DeviceState *cmsdk_apb_uart_create(hwaddr addr,
|
|
qemu_irq txint,
|
|
qemu_irq rxint,
|
|
qemu_irq txovrint,
|
|
qemu_irq rxovrint,
|
|
qemu_irq uartint,
|
|
Chardev *chr,
|
|
uint32_t pclk_frq)
|
|
{
|
|
DeviceState *dev;
|
|
SysBusDevice *s;
|
|
|
|
dev = qdev_new(TYPE_CMSDK_APB_UART);
|
|
s = SYS_BUS_DEVICE(dev);
|
|
qdev_prop_set_chr(dev, "chardev", chr);
|
|
qdev_prop_set_uint32(dev, "pclk-frq", pclk_frq);
|
|
sysbus_realize_and_unref(s, &error_fatal);
|
|
sysbus_mmio_map(s, 0, addr);
|
|
sysbus_connect_irq(s, 0, txint);
|
|
sysbus_connect_irq(s, 1, rxint);
|
|
sysbus_connect_irq(s, 2, txovrint);
|
|
sysbus_connect_irq(s, 3, rxovrint);
|
|
sysbus_connect_irq(s, 4, uartint);
|
|
return dev;
|
|
}
|
|
|
|
#endif
|