2015-03-11 16:21:05 +03:00
|
|
|
/*
|
|
|
|
* STM32F2XX SYSCFG
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
2016-01-26 21:17:17 +03:00
|
|
|
#include "qemu/osdep.h"
|
2015-03-11 16:21:05 +03:00
|
|
|
#include "hw/misc/stm32f2xx_syscfg.h"
|
2015-12-15 15:16:16 +03:00
|
|
|
#include "qemu/log.h"
|
2019-05-23 17:35:07 +03:00
|
|
|
#include "qemu/module.h"
|
2015-03-11 16:21:05 +03:00
|
|
|
|
|
|
|
#ifndef STM_SYSCFG_ERR_DEBUG
|
|
|
|
#define STM_SYSCFG_ERR_DEBUG 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define DB_PRINT_L(lvl, fmt, args...) do { \
|
|
|
|
if (STM_SYSCFG_ERR_DEBUG >= lvl) { \
|
|
|
|
qemu_log("%s: " fmt, __func__, ## args); \
|
|
|
|
} \
|
maint: Fix macros with broken 'do/while(0); ' usage
The point of writing a macro embedded in a 'do { ... } while (0)'
loop (particularly if the macro has multiple statements or would
otherwise end with an 'if' statement) is so that the macro can be
used as a drop-in statement with the caller supplying the
trailing ';'. Although our coding style frowns on brace-less 'if':
if (cond)
statement;
else
something else;
that is the classic case where failure to use do/while(0) wrapping
would cause the 'else' to pair with any embedded 'if' in the macro
rather than the intended outer 'if'. But conversely, if the macro
includes an embedded ';', then the same brace-less coding style
would now have two statements, making the 'else' a syntax error
rather than pairing with the outer 'if'. Thus, even though our
coding style with required braces is not impacted, ending a macro
with ';' makes our code harder to port to projects that use
brace-less styles.
The change should have no semantic impact. I was not able to
fully compile-test all of the changes (as some of them are
examples of the ugly bit-rotting debug print statements that are
completely elided by default, and I didn't want to recompile
with the necessary -D witnesses - cleaning those up is left as a
bite-sized task for another day); I did, however, audit that for
all files touched, all callers of the changed macros DID supply
a trailing ';' at the callsite, and did not appear to be used
as part of a brace-less conditional.
Found mechanically via: $ git grep -B1 'while (0);' | grep -A1 \\\\
Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20171201232433.25193-7-eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-02 02:24:32 +03:00
|
|
|
} while (0)
|
2015-03-11 16:21:05 +03:00
|
|
|
|
|
|
|
#define DB_PRINT(fmt, args...) DB_PRINT_L(1, fmt, ## args)
|
|
|
|
|
|
|
|
static void stm32f2xx_syscfg_reset(DeviceState *dev)
|
|
|
|
{
|
|
|
|
STM32F2XXSyscfgState *s = STM32F2XX_SYSCFG(dev);
|
|
|
|
|
|
|
|
s->syscfg_memrmp = 0x00000000;
|
|
|
|
s->syscfg_pmc = 0x00000000;
|
|
|
|
s->syscfg_exticr1 = 0x00000000;
|
|
|
|
s->syscfg_exticr2 = 0x00000000;
|
|
|
|
s->syscfg_exticr3 = 0x00000000;
|
|
|
|
s->syscfg_exticr4 = 0x00000000;
|
|
|
|
s->syscfg_cmpcr = 0x00000000;
|
|
|
|
}
|
|
|
|
|
|
|
|
static uint64_t stm32f2xx_syscfg_read(void *opaque, hwaddr addr,
|
|
|
|
unsigned int size)
|
|
|
|
{
|
|
|
|
STM32F2XXSyscfgState *s = opaque;
|
|
|
|
|
|
|
|
DB_PRINT("0x%"HWADDR_PRIx"\n", addr);
|
|
|
|
|
|
|
|
switch (addr) {
|
|
|
|
case SYSCFG_MEMRMP:
|
|
|
|
return s->syscfg_memrmp;
|
|
|
|
case SYSCFG_PMC:
|
|
|
|
return s->syscfg_pmc;
|
|
|
|
case SYSCFG_EXTICR1:
|
|
|
|
return s->syscfg_exticr1;
|
|
|
|
case SYSCFG_EXTICR2:
|
|
|
|
return s->syscfg_exticr2;
|
|
|
|
case SYSCFG_EXTICR3:
|
|
|
|
return s->syscfg_exticr3;
|
|
|
|
case SYSCFG_EXTICR4:
|
|
|
|
return s->syscfg_exticr4;
|
|
|
|
case SYSCFG_CMPCR:
|
|
|
|
return s->syscfg_cmpcr;
|
|
|
|
default:
|
|
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
|
|
"%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void stm32f2xx_syscfg_write(void *opaque, hwaddr addr,
|
|
|
|
uint64_t val64, unsigned int size)
|
|
|
|
{
|
|
|
|
STM32F2XXSyscfgState *s = opaque;
|
|
|
|
uint32_t value = val64;
|
|
|
|
|
|
|
|
DB_PRINT("0x%x, 0x%"HWADDR_PRIx"\n", value, addr);
|
|
|
|
|
|
|
|
switch (addr) {
|
|
|
|
case SYSCFG_MEMRMP:
|
|
|
|
qemu_log_mask(LOG_UNIMP,
|
|
|
|
"%s: Changeing the memory mapping isn't supported " \
|
|
|
|
"in QEMU\n", __func__);
|
|
|
|
return;
|
|
|
|
case SYSCFG_PMC:
|
|
|
|
qemu_log_mask(LOG_UNIMP,
|
|
|
|
"%s: Changeing the memory mapping isn't supported " \
|
|
|
|
"in QEMU\n", __func__);
|
|
|
|
return;
|
|
|
|
case SYSCFG_EXTICR1:
|
|
|
|
s->syscfg_exticr1 = (value & 0xFFFF);
|
|
|
|
return;
|
|
|
|
case SYSCFG_EXTICR2:
|
|
|
|
s->syscfg_exticr2 = (value & 0xFFFF);
|
|
|
|
return;
|
|
|
|
case SYSCFG_EXTICR3:
|
|
|
|
s->syscfg_exticr3 = (value & 0xFFFF);
|
|
|
|
return;
|
|
|
|
case SYSCFG_EXTICR4:
|
|
|
|
s->syscfg_exticr4 = (value & 0xFFFF);
|
|
|
|
return;
|
|
|
|
case SYSCFG_CMPCR:
|
|
|
|
s->syscfg_cmpcr = value;
|
|
|
|
return;
|
|
|
|
default:
|
|
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
|
|
"%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static const MemoryRegionOps stm32f2xx_syscfg_ops = {
|
|
|
|
.read = stm32f2xx_syscfg_read,
|
|
|
|
.write = stm32f2xx_syscfg_write,
|
|
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void stm32f2xx_syscfg_init(Object *obj)
|
|
|
|
{
|
|
|
|
STM32F2XXSyscfgState *s = STM32F2XX_SYSCFG(obj);
|
|
|
|
|
|
|
|
sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq);
|
|
|
|
|
|
|
|
memory_region_init_io(&s->mmio, obj, &stm32f2xx_syscfg_ops, s,
|
|
|
|
TYPE_STM32F2XX_SYSCFG, 0x400);
|
|
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void stm32f2xx_syscfg_class_init(ObjectClass *klass, void *data)
|
|
|
|
{
|
|
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
|
|
|
|
dc->reset = stm32f2xx_syscfg_reset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const TypeInfo stm32f2xx_syscfg_info = {
|
|
|
|
.name = TYPE_STM32F2XX_SYSCFG,
|
|
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
|
|
.instance_size = sizeof(STM32F2XXSyscfgState),
|
|
|
|
.instance_init = stm32f2xx_syscfg_init,
|
|
|
|
.class_init = stm32f2xx_syscfg_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void stm32f2xx_syscfg_register_types(void)
|
|
|
|
{
|
|
|
|
type_register_static(&stm32f2xx_syscfg_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
type_init(stm32f2xx_syscfg_register_types)
|