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sh_serial: process all received characters 

When operating on the SCIF, process all the received characters, as long
as the FIFO can handle them.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-01-19 11:38:36 +01:00
parent b7277ac289
commit b7d2b02093
1 changed files with 21 additions and 21 deletions
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42
hw/sh_serial.c
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@ -293,26 +293,6 @@ static int sh_serial_can_receive(sh_serial_state *s)
return s->scr & (1 << 4);
}
static void sh_serial_receive_byte(sh_serial_state *s, int ch)
{
if (s->feat & SH_SERIAL_FEAT_SCIF) {
if (s->rx_cnt < SH_RX_FIFO_LENGTH) {
s->rx_fifo[s->rx_head++] = ch;
if (s->rx_head == SH_RX_FIFO_LENGTH)
s->rx_head = 0;
s->rx_cnt++;
if (s->rx_cnt >= s->rtrg) {
s->flags |= SH_SERIAL_FLAG_RDF;
if (s->scr & (1 << 6) && s->rxi) {
qemu_set_irq(s->rxi, 1);
}
}
}
} else {
s->rx_fifo[0] = ch;
}
}
static void sh_serial_receive_break(sh_serial_state *s)
{
if (s->feat & SH_SERIAL_FEAT_SCIF)
@ -328,7 +308,27 @@ static int sh_serial_can_receive1(void *opaque)
static void sh_serial_receive1(void *opaque, const uint8_t *buf, int size)
{
sh_serial_state *s = opaque;
sh_serial_receive_byte(s, buf[0]);
if (s->feat & SH_SERIAL_FEAT_SCIF) {
int i;
for (i = 0; i < size; i++) {
if (s->rx_cnt < SH_RX_FIFO_LENGTH) {
s->rx_fifo[s->rx_head++] = buf[i];
if (s->rx_head == SH_RX_FIFO_LENGTH) {
s->rx_head = 0;
}
s->rx_cnt++;
if (s->rx_cnt >= s->rtrg) {
s->flags |= SH_SERIAL_FLAG_RDF;
if (s->scr & (1 << 6) && s->rxi) {
qemu_set_irq(s->rxi, 1);
}
}
}
}
} else {
s->rx_fifo[0] = buf[0];
}
}
static void sh_serial_event(void *opaque, int event)