haraldwolff/qemu-patch-raspberry4
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Fix command len detection (esp_3_cmdlen.diff)

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When command is not DMA, TCMID and TCLO registers are not filled. Use command buffer len instead

Signed-off-by: Herve Poussineau <hpoussin@reactos.org>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5813 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-11-29 16:51:02 +00:00
parent b44c08fab3
commit fc4d65da26
1 changed files with 4 additions and 4 deletions
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8
hw/esp.c
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@ -167,16 +167,16 @@ static uint32_t get_cmd(ESPState *s, uint8_t *buf)
uint32_t dmalen;
int target;
dmalen = s->rregs[ESP_TCLO] | (s->rregs[ESP_TCMID] << 8);
target = s->wregs[ESP_WBUSID] & BUSID_DID;
DPRINTF("get_cmd: len %d target %d\n", dmalen, target);
if (s->dma) {
dmalen = s->rregs[ESP_TCLO] | (s->rregs[ESP_TCMID] << 8);
s->dma_memory_read(s->dma_opaque, buf, dmalen);
} else {
dmalen = s->ti_size;
memcpy(buf, s->ti_buf, dmalen);
buf[0] = 0;
memcpy(&buf[1], s->ti_buf, dmalen);
dmalen++;
}
DPRINTF("get_cmd: len %d target %d\n", dmalen, target);
s->ti_size = 0;
s->ti_rptr = 0;