qemu/include/hw/watchdog/wdt_aspeed.h
Markus Armbruster ec150c7e09 include: Make headers more self-contained
Back in 2016, we discussed[1] rules for headers, and these were
generally liked:

1. Have a carefully curated header that's included everywhere first.  We
   got that already thanks to Peter: osdep.h.

2. Headers should normally include everything they need beyond osdep.h.
   If exceptions are needed for some reason, they must be documented in
   the header.  If all that's needed from a header is typedefs, put
   those into qemu/typedefs.h instead of including the header.

3. Cyclic inclusion is forbidden.

This patch gets include/ closer to obeying 2.

It's actually extracted from my "[RFC] Baby steps towards saner
headers" series[2], which demonstrates a possible path towards
checking 2 automatically.  It passes the RFC test there.

[1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org>
    https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html
[2] Message-Id: <20190711122827.18970-1-armbru@redhat.com>
    https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-2-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:51 +02:00

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/*
* ASPEED Watchdog Controller
*
* Copyright (C) 2016-2017 IBM Corp.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef WDT_ASPEED_H
#define WDT_ASPEED_H
#include "hw/misc/aspeed_scu.h"
#include "hw/sysbus.h"
#define TYPE_ASPEED_WDT "aspeed.wdt"
#define ASPEED_WDT(obj) \
OBJECT_CHECK(AspeedWDTState, (obj), TYPE_ASPEED_WDT)
#define ASPEED_WDT_REGS_MAX (0x20 / 4)
typedef struct AspeedWDTState {
/*< private >*/
SysBusDevice parent_obj;
QEMUTimer *timer;
/*< public >*/
MemoryRegion iomem;
uint32_t regs[ASPEED_WDT_REGS_MAX];
AspeedSCUState *scu;
uint32_t pclk_freq;
uint32_t silicon_rev;
uint32_t ext_pulse_width_mask;
} AspeedWDTState;
#endif /* WDT_ASPEED_H */