diff options
| author | Thierry Escande <thierry.escande@linux.intel.com> | 2014-01-06 23:34:48 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2014-01-07 18:48:12 +0100 |
| commit | b711ad524bf5a6a078c4d0a1a44ca1db204802f6 (patch) | |
| tree | 52d9b5e8fb7db62c9459fa8ed9efbaa2e0622253 /net/nfc/digital_dep.c | |
| parent | 48e1044515967a0d88ee076045b2141535557d8e (diff) | |
| download | linux-next-b711ad524bf5a6a078c4d0a1a44ca1db204802f6.tar.gz | |
NFC: digital: Set rf tech and crc functions when receiving a PSL_REQ
This patch sets the correct rf tech value and crc functions in target
mode when receiving a PSL_REQ, as done when receiving an ATR_REQ.
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc/digital_dep.c')
| -rw-r--r-- | net/nfc/digital_dep.c | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c index 562bec9ad8d9..43e450f78d0a 100644 --- a/net/nfc/digital_dep.c +++ b/net/nfc/digital_dep.c @@ -380,6 +380,33 @@ int digital_in_send_dep_req(struct nfc_digital_dev *ddev, data_exch); } +static void digital_tg_set_rf_tech(struct nfc_digital_dev *ddev, u8 rf_tech) +{ + ddev->curr_rf_tech = rf_tech; + + ddev->skb_add_crc = digital_skb_add_crc_none; + ddev->skb_check_crc = digital_skb_check_crc_none; + + if (DIGITAL_DRV_CAPS_TG_CRC(ddev)) + return; + + switch (ddev->curr_rf_tech) { + case NFC_DIGITAL_RF_TECH_106A: + ddev->skb_add_crc = digital_skb_add_crc_a; + ddev->skb_check_crc = digital_skb_check_crc_a; + break; + + case NFC_DIGITAL_RF_TECH_212F: + case NFC_DIGITAL_RF_TECH_424F: + ddev->skb_add_crc = digital_skb_add_crc_f; + ddev->skb_check_crc = digital_skb_check_crc_f; + break; + + default: + break; + } +} + static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg, struct sk_buff *resp) { @@ -475,6 +502,8 @@ static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev, if (IS_ERR(resp)) return; + digital_tg_set_rf_tech(ddev, rf_tech); + digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech); digital_tg_listen(ddev, 1500, digital_tg_recv_dep_req, NULL); @@ -659,16 +688,10 @@ void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg, if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB) { min_size = DIGITAL_ATR_REQ_MIN_SIZE + 2; - - ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_106A; - ddev->skb_add_crc = digital_skb_add_crc_a; - ddev->skb_check_crc = digital_skb_check_crc_a; + digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_106A); } else { min_size = DIGITAL_ATR_REQ_MIN_SIZE + 1; - - ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_212F; - ddev->skb_add_crc = digital_skb_add_crc_f; - ddev->skb_check_crc = digital_skb_check_crc_f; + digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_212F); } if (resp->len < min_size) { @@ -676,11 +699,6 @@ void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg, goto exit; } - if (DIGITAL_DRV_CAPS_TG_CRC(ddev)) { - ddev->skb_add_crc = digital_skb_add_crc_none; - ddev->skb_check_crc = digital_skb_check_crc_none; - } - ddev->curr_protocol = NFC_PROTO_NFC_DEP_MASK; rc = ddev->skb_check_crc(resp); |