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hw/char: RX62N serial communication interface (SCI)

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This module supported only non FIFO type.
Hardware manual.
https://www.renesas.com/us/en/doc/products/mpumcu/doc/rx_family/r01uh0033ej0140_rx62n.pdf

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200224141923.82118-17-ysato@users.sourceforge.jp>
[PMD: Filled VMStateField for migration]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Yoshinori Sato 2019-01-21 22:15:59 +09:00 • committed by Philippe Mathieu-Daudé
parent c7f37bafde
commit 645194c7aa
5 changed files with 407 additions and 0 deletions
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51
include/hw/char/renesas_sci.h Normal file
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/*
* Renesas Serial Communication Interface
*
* Copyright (c) 2018 Yoshinori Sato
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef HW_CHAR_RENESAS_SCI_H
#define HW_CHAR_RENESAS_SCI_H
#include "chardev/char-fe.h"
#include "hw/sysbus.h"
#define TYPE_RENESAS_SCI "renesas-sci"
#define RSCI(obj) OBJECT_CHECK(RSCIState, (obj), TYPE_RENESAS_SCI)
enum {
ERI = 0,
RXI = 1,
TXI = 2,
TEI = 3,
SCI_NR_IRQ = 4
};
typedef struct {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion memory;
QEMUTimer timer;
CharBackend chr;
qemu_irq irq[SCI_NR_IRQ];
uint8_t smr;
uint8_t brr;
uint8_t scr;
uint8_t tdr;
uint8_t ssr;
uint8_t rdr;
uint8_t scmr;
uint8_t semr;
uint8_t read_ssr;
int64_t trtime;
int64_t rx_next;
uint64_t input_freq;
} RSCIState;
#endif