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[Qemu-devel] [PATCH 4/9] m25p80: Introduce COLLECTING_VAR_LEN_DATA state
From: |
marcin.krzeminski |
Subject: |
[Qemu-devel] [PATCH 4/9] m25p80: Introduce COLLECTING_VAR_LEN_DATA state. |
Date: |
Wed, 15 Jun 2016 15:41:06 +0200 |
From: Marcin Krzeminski <address@hidden>
Some flash allows to stop read at any time.
Allow framework to support this.
Signed-off-by: Marcin Krzeminski <address@hidden>
---
hw/block/m25p80.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 6910c52..ca1f882 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -330,6 +330,7 @@ typedef enum {
STATE_PAGE_PROGRAM,
STATE_READ,
STATE_COLLECTING_DATA,
+ STATE_COLLECTING_VAR_LEN_DATA,
STATE_READING_DATA,
} CMDState;
@@ -872,6 +873,9 @@ static int m25p80_cs(SSISlave *ss, bool select)
Flash *s = M25P80(ss);
if (select) {
+ if (s->state == STATE_COLLECTING_VAR_LEN_DATA) {
+ complete_collecting_data(s);
+ }
s->len = 0;
s->pos = 0;
s->state = STATE_IDLE;
@@ -905,6 +909,7 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t tx)
break;
case STATE_COLLECTING_DATA:
+ case STATE_COLLECTING_VAR_LEN_DATA:
s->data[s->len] = (uint8_t)tx;
s->len++;
--
2.7.4