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hw/ssi: Add a "cs" property to SSIPeripheral

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Boards will use this new property to identify the device CS line and
wire the SPI controllers accordingly.

Cc: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Cédric Le Goater 2023-06-07 06:39:35 +02:00
parent 9bf9865c5e
commit 243975c055
2 changed files with 10 additions and 0 deletions
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7
hw/ssi/ssi.c
View file

@ -13,6 +13,7 @@
*/ */
#include "qemu/osdep.h" #include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/ssi/ssi.h" #include "hw/ssi/ssi.h"
#include "migration/vmstate.h" #include "migration/vmstate.h"
#include "qemu/module.h" #include "qemu/module.h"
@ -71,6 +72,11 @@ static void ssi_peripheral_realize(DeviceState *dev, Error **errp)
ssc->realize(s, errp); ssc->realize(s, errp);
} }
static Property ssi_peripheral_properties[] = {
DEFINE_PROP_UINT8("cs", SSIPeripheral, cs_index, 0),
DEFINE_PROP_END_OF_LIST(),
};
static void ssi_peripheral_class_init(ObjectClass *klass, void *data) static void ssi_peripheral_class_init(ObjectClass *klass, void *data)
{ {
SSIPeripheralClass *ssc = SSI_PERIPHERAL_CLASS(klass); SSIPeripheralClass *ssc = SSI_PERIPHERAL_CLASS(klass);
@ -81,6 +87,7 @@ static void ssi_peripheral_class_init(ObjectClass *klass, void *data)
if (!ssc->transfer_raw) { if (!ssc->transfer_raw) {
ssc->transfer_raw = ssi_transfer_raw_default; ssc->transfer_raw = ssi_transfer_raw_default;
} }
device_class_set_props(dc, ssi_peripheral_properties);
} }
static const TypeInfo ssi_peripheral_info = { static const TypeInfo ssi_peripheral_info = {

3
include/hw/ssi/ssi.h
View file

@ -64,6 +64,9 @@ struct SSIPeripheral {
/* Chip select state */ /* Chip select state */
bool cs; bool cs;
/* Chip select index */
uint8_t cs_index;
}; };
extern const VMStateDescription vmstate_ssi_peripheral; extern const VMStateDescription vmstate_ssi_peripheral;