From 7e0352306f6869b442a574a8e691f126c9fe930a Mon Sep 17 00:00:00 2001 From: Ilan Elias Date: Wed, 15 Aug 2012 11:46:22 +0300 Subject: NFC: Set local general bytes in nci_start_poll If initiator protocol is NFC-DEP, set the local general bytes in nci_start_poll. Signed-off-by: Ilan Elias Signed-off-by: Samuel Ortiz --- net/nfc/nci/core.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ net/nfc/nci/rsp.c | 14 ++++++++++++++ 2 files changed, 69 insertions(+) (limited to 'net') diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index f81efe13985..f017b781667 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -176,6 +176,27 @@ static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt) (1 + ((*num) * sizeof(struct disc_map_config))), &cmd); } +struct nci_set_config_param { + __u8 id; + size_t len; + __u8 *val; +}; + +static void nci_set_config_req(struct nci_dev *ndev, unsigned long opt) +{ + struct nci_set_config_param *param = (struct nci_set_config_param *)opt; + struct nci_core_set_config_cmd cmd; + + BUG_ON(param->len > NCI_MAX_PARAM_LEN); + + cmd.num_params = 1; + cmd.param.id = param->id; + cmd.param.len = param->len; + memcpy(cmd.param.val, param->val, param->len); + + nci_send_cmd(ndev, NCI_OP_CORE_SET_CONFIG_CMD, (3 + param->len), &cmd); +} + static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt) { struct nci_rf_disc_cmd cmd; @@ -388,6 +409,32 @@ static int nci_dev_down(struct nfc_dev *nfc_dev) return nci_close_device(ndev); } +static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev) +{ + struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); + struct nci_set_config_param param; + __u8 local_gb[NFC_MAX_GT_LEN]; + int i, rc = 0; + + param.val = nfc_get_local_general_bytes(nfc_dev, ¶m.len); + if ((param.val == NULL) || (param.len == 0)) + return rc; + + if (param.len > NCI_MAX_PARAM_LEN) + return -EINVAL; + + for (i = 0; i < param.len; i++) + local_gb[param.len-1-i] = param.val[i]; + + param.id = NCI_PN_ATR_REQ_GEN_BYTES; + param.val = local_gb; + + rc = nci_request(ndev, nci_set_config_req, (unsigned long)¶m, + msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT)); + + return rc; +} + static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols, __u32 tm_protocols) { @@ -415,6 +462,14 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, return -EBUSY; } + if (im_protocols & NFC_PROTO_NFC_DEP_MASK) { + rc = nci_set_local_general_bytes(nfc_dev); + if (rc) { + pr_err("failed to set local general bytes\n"); + return rc; + } + } + rc = nci_request(ndev, nci_rf_discover_req, im_protocols, msecs_to_jiffies(NCI_RF_DISC_TIMEOUT)); diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c index 3003c3390e4..dd072f38ad0 100644 --- a/net/nfc/nci/rsp.c +++ b/net/nfc/nci/rsp.c @@ -119,6 +119,16 @@ exit: nci_req_complete(ndev, rsp_1->status); } +static void nci_core_set_config_rsp_packet(struct nci_dev *ndev, + struct sk_buff *skb) +{ + struct nci_core_set_config_rsp *rsp = (void *) skb->data; + + pr_debug("status 0x%x\n", rsp->status); + + nci_req_complete(ndev, rsp->status); +} + static void nci_rf_disc_map_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb) { @@ -194,6 +204,10 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb) nci_core_init_rsp_packet(ndev, skb); break; + case NCI_OP_CORE_SET_CONFIG_RSP: + nci_core_set_config_rsp_packet(ndev, skb); + break; + case NCI_OP_RF_DISCOVER_MAP_RSP: nci_rf_disc_map_rsp_packet(ndev, skb); break; -- cgit v1.2.3