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esp: introduce esp_set_pdma_cb() function

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This function is to be used to set the current PDMA callback rather than
accessing the ESPState pdma_cb function pointer directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220305155530.9265-7-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2022-03-05 15:55:26 +00:00
parent e20d0b84a8
commit 1e794c51c4
1 changed files with 12 additions and 7 deletions
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19
hw/scsi/esp.c
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@ -195,6 +195,11 @@ static void esp_pdma_write(ESPState *s, uint8_t val)
esp_set_tc(s, dmalen);
}
static void esp_set_pdma_cb(ESPState *s, void (*cb)(ESPState *))
{
s->pdma_cb = cb;
}
static int esp_select(ESPState *s)
{
int target;
@ -356,7 +361,7 @@ static void handle_satn(ESPState *s)
s->dma_cb = handle_satn;
return;
}
s->pdma_cb = satn_pdma_cb;
esp_set_pdma_cb(s, satn_pdma_cb);
cmdlen = get_cmd(s, ESP_CMDFIFO_SZ);
if (cmdlen > 0) {
s->cmdfifo_cdb_offset = 1;
@ -387,7 +392,7 @@ static void handle_s_without_atn(ESPState *s)
s->dma_cb = handle_s_without_atn;
return;
}
s->pdma_cb = s_without_satn_pdma_cb;
esp_set_pdma_cb(s, s_without_satn_pdma_cb);
cmdlen = get_cmd(s, ESP_CMDFIFO_SZ);
if (cmdlen > 0) {
s->cmdfifo_cdb_offset = 0;
@ -422,7 +427,7 @@ static void handle_satn_stop(ESPState *s)
s->dma_cb = handle_satn_stop;
return;
}
s->pdma_cb = satn_stop_pdma_cb;
esp_set_pdma_cb(s, satn_stop_pdma_cb);
cmdlen = get_cmd(s, 1);
if (cmdlen > 0) {
trace_esp_handle_satn_stop(fifo8_num_used(&s->cmdfifo));
@ -464,7 +469,7 @@ static void write_response(ESPState *s)
s->rregs[ESP_RINTR] |= INTR_BS | INTR_FC;
s->rregs[ESP_RSEQ] = SEQ_CD;
} else {
s->pdma_cb = write_response_pdma_cb;
esp_set_pdma_cb(s, write_response_pdma_cb);
esp_raise_drq(s);
return;
}
@ -604,7 +609,7 @@ static void esp_do_dma(ESPState *s)
s->dma_memory_read(s->dma_opaque, buf, len);
fifo8_push_all(&s->cmdfifo, buf, len);
} else {
s->pdma_cb = do_dma_pdma_cb;
esp_set_pdma_cb(s, do_dma_pdma_cb);
esp_raise_drq(s);
return;
}
@ -646,7 +651,7 @@ static void esp_do_dma(ESPState *s)
if (s->dma_memory_read) {
s->dma_memory_read(s->dma_opaque, s->async_buf, len);
} else {
s->pdma_cb = do_dma_pdma_cb;
esp_set_pdma_cb(s, do_dma_pdma_cb);
esp_raise_drq(s);
return;
}
@ -678,7 +683,7 @@ static void esp_do_dma(ESPState *s)
}
esp_set_tc(s, esp_get_tc(s) - len);
s->pdma_cb = do_dma_pdma_cb;
esp_set_pdma_cb(s, do_dma_pdma_cb);
esp_raise_drq(s);
/* Indicate transfer to FIFO is complete */