NFC: port100: Add support for type 4B tag

This patch adds support for ISO-DEP protocol over NFC-B rf technology
by adding NFC_PROTO_ISO14443_B to the supported protocols and an entry
for framing configuration.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index b7a372a..4ac4d31 100644 (file)
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -28,7 +28,8 @@
                           NFC_PROTO_MIFARE_MASK   | \
                           NFC_PROTO_FELICA_MASK   | \
                           NFC_PROTO_NFC_DEP_MASK  | \
-                          NFC_PROTO_ISO14443_MASK)
+                          NFC_PROTO_ISO14443_MASK | \
+                          NFC_PROTO_ISO14443_B_MASK)
 
 #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \
                              NFC_DIGITAL_DRV_CAPS_TG_CRC)
@@ -120,6 +121,7 @@ struct port100_in_rf_setting {
 #define PORT100_COMM_TYPE_IN_212F 0x01
 #define PORT100_COMM_TYPE_IN_424F 0x02
 #define PORT100_COMM_TYPE_IN_106A 0x03
+#define PORT100_COMM_TYPE_IN_106B 0x07
 
 static const struct port100_in_rf_setting in_rf_settings[] = {
        [NFC_DIGITAL_RF_TECH_212F] = {
@@ -140,6 +142,12 @@ static const struct port100_in_rf_setting in_rf_settings[] = {
                .in_recv_set_number = 15,
                .in_recv_comm_type  = PORT100_COMM_TYPE_IN_106A,
        },
+       [NFC_DIGITAL_RF_TECH_106B] = {
+               .in_send_set_number = 3,
+               .in_send_comm_type  = PORT100_COMM_TYPE_IN_106B,
+               .in_recv_set_number = 15,
+               .in_recv_comm_type  = PORT100_COMM_TYPE_IN_106B,
+       },
        /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */
        [NFC_DIGITAL_RF_TECH_LAST] = { 0 },
 };
@@ -340,6 +348,32 @@ in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = {
        [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = {
                { PORT100_IN_PROT_END, 0 },
        },
+       [NFC_DIGITAL_FRAMING_NFCB] = {
+               { PORT100_IN_PROT_INITIAL_GUARD_TIME,     20 },
+               { PORT100_IN_PROT_ADD_CRC,                 1 },
+               { PORT100_IN_PROT_CHECK_CRC,               1 },
+               { PORT100_IN_PROT_MULTI_CARD,              0 },
+               { PORT100_IN_PROT_ADD_PARITY,              0 },
+               { PORT100_IN_PROT_CHECK_PARITY,            0 },
+               { PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+               { PORT100_IN_PROT_VALID_BIT_NUMBER,        8 },
+               { PORT100_IN_PROT_CRYPTO1,                 0 },
+               { PORT100_IN_PROT_ADD_SOF,                 1 },
+               { PORT100_IN_PROT_CHECK_SOF,               1 },
+               { PORT100_IN_PROT_ADD_EOF,                 1 },
+               { PORT100_IN_PROT_CHECK_EOF,               1 },
+               { PORT100_IN_PROT_DEAF_TIME,               4 },
+               { PORT100_IN_PROT_CRM,                     0 },
+               { PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+               { PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+               { PORT100_IN_PROT_RFCA,                    0 },
+               { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+               { PORT100_IN_PROT_END,                     0 },
+       },
+       [NFC_DIGITAL_FRAMING_NFCB_T4T] = {
+               /* nfc_digital_framing_nfcb */
+               { PORT100_IN_PROT_END,                     0 },
+       },
        /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */
        [NFC_DIGITAL_FRAMING_LAST] = {
                { PORT100_IN_PROT_END, 0 },