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hw/net/can: Make CanBusClientInfo::can_receive() return a boolean

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The CanBusClientInfo::can_receive handler return whether the
device can or can not receive new frames. Make it obvious by
returning a boolean type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-03-05 18:56:50 +01:00 • committed by Jason Wang
parent b8c4b67e3e
commit 767cc9a9c1
5 changed files with 9 additions and 9 deletions
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8
hw/net/can/can_sja1000.c
View file

@ -733,21 +733,21 @@ uint64_t can_sja_mem_read(CanSJA1000State *s, hwaddr addr, unsigned size)
return temp;
}
int can_sja_can_receive(CanBusClientState *client)
bool can_sja_can_receive(CanBusClientState *client)
{
CanSJA1000State *s = container_of(client, CanSJA1000State, bus_client);
if (s->clock & 0x80) { /* PeliCAN Mode */
if (s->mode & 0x01) { /* reset mode. */
return 0;
return false;
}
} else { /* BasicCAN mode */
if (s->control & 0x01) {
return 0;
return false;
}
}
return 1; /* always return 1, when operation mode */
return true; /* always return true, when operation mode */
}
ssize_t can_sja_receive(CanBusClientState *client, const qemu_can_frame *frames,

2
hw/net/can/can_sja1000.h
View file

@ -137,7 +137,7 @@ void can_sja_disconnect(CanSJA1000State *s);
int can_sja_init(CanSJA1000State *s, qemu_irq irq);
int can_sja_can_receive(CanBusClientState *client);
bool can_sja_can_receive(CanBusClientState *client);
ssize_t can_sja_receive(CanBusClientState *client,
const qemu_can_frame *frames, size_t frames_cnt);