diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2011-06-14 17:51:11 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2011-06-15 18:27:15 +0300 |
| commit | befeac45d4d9afb587eca9a27d975db4a7950960 (patch) | |
| tree | aab24c856a3ea944e287d7f2591bb4bab6a56eb4 /hw/bitbang_i2c.c | |
| parent | 35f754620615138aaae0ef72602f84c88fd8de0f (diff) | |
| parent | 0b862cedf36d927818c50584ddd611b0370673df (diff) | |
Merge remote-tracking branch 'origin/master' into pci
Conflicts:
hw/virtio-pci.c
Diffstat (limited to 'hw/bitbang_i2c.c')
| -rw-r--r-- | hw/bitbang_i2c.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/bitbang_i2c.c b/hw/bitbang_i2c.c index 4ee99a18b..2937b5c4a 100644 --- a/hw/bitbang_i2c.c +++ b/hw/bitbang_i2c.c @@ -38,7 +38,8 @@ typedef enum bitbang_i2c_state { RECEIVING_BIT2, RECEIVING_BIT1, RECEIVING_BIT0, - SENDING_ACK + SENDING_ACK, + SENT_NACK } bitbang_i2c_state; struct bitbang_i2c_interface { @@ -115,6 +116,7 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level) } switch (i2c->state) { case STOPPED: + case SENT_NACK: return bitbang_i2c_ret(i2c, 1); case SENDING_BIT7 ... SENDING_BIT0: @@ -155,6 +157,7 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level) i2c->state = RECEIVING_BIT7; if (data != 0) { DPRINTF("NACKED\n"); + i2c->state = SENT_NACK; i2c_nack(i2c->bus); } else { DPRINTF("ACKED\n"); |