Those define the ATR_RES response timeout after which the pn533 considers the
target to be mute.
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
drivers/nfc/pn533.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 2a7e4e8..d976344 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -104,8 +104,14 @@ struct pn533_fw_version {
};
/* PN533_CMD_RF_CONFIGURATION */
+#define PN533_CFGITEM_TIMING 0x02
#define PN533_CFGITEM_MAX_RETRIES 0x05
+#define PN533_CONFIG_TIMING_102 0xb
+#define PN533_CONFIG_TIMING_204 0xc
+#define PN533_CONFIG_TIMING_409 0xd
+#define PN533_CONFIG_TIMING_819 0xe
+
#define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
#define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
@@ -115,6 +121,12 @@ struct pn533_config_max_retries {
u8 mx_rty_passive_act;
} __packed;
+struct pn533_config_timing {
+ u8 rfu;
+ u8 atr_res_timeout;
+ u8 dep_timeout;
+} __packed;
+
/* PN533_CMD_IN_LIST_PASSIVE_TARGET */
/* felica commands opcode */
@@ -2004,6 +2016,7 @@ static int pn533_probe(struct usb_interface *interface,
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
struct pn533_config_max_retries max_retries;
+ struct pn533_config_timing timing;
int in_endpoint = 0;
int out_endpoint = 0;
int rc = -ENOMEM;
@@ -2115,6 +2128,18 @@ static int pn533_probe(struct usb_interface *interface,
goto unregister_nfc_dev;
}
+ timing.rfu = PN533_CONFIG_TIMING_102;
+ timing.atr_res_timeout = PN533_CONFIG_TIMING_204;
+ timing.dep_timeout = PN533_CONFIG_TIMING_409;
+
+ rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING,
+ (u8 *) &timing, sizeof(timing));
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev,
+ "Error on setting RF timings");
+ goto unregister_nfc_dev;
+ }
+
return 0;
unregister_nfc_dev:
--
1.7.9.1
--
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