diff options
Diffstat (limited to 'drivers/nfc/pn533.c')
| -rw-r--r-- | drivers/nfc/pn533.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index a2829cb4e34d8b..b65d00dc70fa7b 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -2033,7 +2033,9 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, u32 im_protocols, u32 tm_protocols) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); + struct pn533_poll_modulations *cur_mod; u8 rand_mod; + int rc; nfc_dev_dbg(&dev->interface->dev, "%s: im protocols 0x%x tm protocols 0x%x", @@ -2066,7 +2068,15 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, rand_mod %= dev->poll_mod_count; dev->poll_mod_curr = rand_mod; - return pn533_send_poll_frame(dev); + cur_mod = dev->poll_mod_active[dev->poll_mod_curr]; + + rc = pn533_send_poll_frame(dev); + + /* Start listen timer */ + if (!rc && cur_mod->len == 0 && dev->poll_mod_count > 1) + mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ); + + return rc; } static void pn533_stop_poll(struct nfc_dev *nfc_dev) |