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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>
This commit is contained in:
Thierry Escande 2014-01-06 23:34:48 +01:00 committed by Samuel Ortiz
parent 48e1044515
commit b711ad524b
1 changed files with 31 additions and 13 deletions
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44
net/nfc/digital_dep.c
View File

@ -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);