forked from Minki/linux
NFC: Add NCI multiple targets support
Add the ability to select between multiple targets in NCI. If only one target is found, it will be auto-activated. If more than one target is found, then DISCOVER_NTF will be generated for each target, and the host should select one by calling DISCOVER_SELECT_CMD. Then, the target will be activated. If the activation fails, GENERIC_ERROR_NTF is generated. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ilan Elias
John W. Linville
parent
25a1d9dc85
commit
019c4fbaa7
@ -116,6 +116,11 @@
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#define NCI_DISC_MAP_MODE_POLL 0x01
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#define NCI_DISC_MAP_MODE_LISTEN 0x02
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/* NCI Discover Notification Type */
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#define NCI_DISCOVER_NTF_TYPE_LAST 0x00
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#define NCI_DISCOVER_NTF_TYPE_LAST_NFCC 0x01
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#define NCI_DISCOVER_NTF_TYPE_MORE 0x02
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/* NCI Deactivation Type */
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#define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00
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#define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01
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@ -207,6 +212,13 @@ struct nci_rf_disc_cmd {
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struct disc_config disc_configs[NCI_MAX_NUM_RF_CONFIGS];
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} __packed;
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#define NCI_OP_RF_DISCOVER_SELECT_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
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struct nci_rf_discover_select_cmd {
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__u8 rf_discovery_id;
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__u8 rf_protocol;
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__u8 rf_interface;
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} __packed;
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#define NCI_OP_RF_DEACTIVATE_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
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struct nci_rf_deactivate_cmd {
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__u8 type;
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@ -244,6 +256,8 @@ struct nci_core_init_rsp_2 {
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#define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
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#define NCI_OP_RF_DISCOVER_SELECT_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
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#define NCI_OP_RF_DEACTIVATE_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
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/* --------------------------- */
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@ -260,13 +274,15 @@ struct nci_core_conn_credit_ntf {
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struct conn_credit_entry conn_entries[NCI_MAX_NUM_CONN];
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} __packed;
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#define NCI_OP_CORE_GENERIC_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x07)
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#define NCI_OP_CORE_INTF_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x08)
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struct nci_core_intf_error_ntf {
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__u8 status;
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__u8 conn_id;
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} __packed;
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#define NCI_OP_RF_INTF_ACTIVATED_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
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#define NCI_OP_RF_DISCOVER_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
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struct rf_tech_specific_params_nfca_poll {
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__u16 sens_res;
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__u8 nfcid1_len; /* 0, 4, 7, or 10 Bytes */
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@ -286,6 +302,22 @@ struct rf_tech_specific_params_nfcf_poll {
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__u8 sensf_res[18]; /* 16 or 18 Bytes */
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} __packed;
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struct nci_rf_discover_ntf {
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__u8 rf_discovery_id;
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__u8 rf_protocol;
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__u8 rf_tech_and_mode;
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__u8 rf_tech_specific_params_len;
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union {
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struct rf_tech_specific_params_nfca_poll nfca_poll;
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struct rf_tech_specific_params_nfcb_poll nfcb_poll;
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struct rf_tech_specific_params_nfcf_poll nfcf_poll;
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} rf_tech_specific_params;
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__u8 ntf_type;
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} __packed;
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#define NCI_OP_RF_INTF_ACTIVATED_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
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struct activation_params_nfca_poll_iso_dep {
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__u8 rats_res_len;
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__u8 rats_res[20];
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@ -46,6 +46,8 @@ enum nci_flag {
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enum nci_state {
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NCI_IDLE,
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NCI_DISCOVERY,
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NCI_W4_ALL_DISCOVERIES,
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NCI_W4_HOST_SELECT,
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NCI_POLL_ACTIVE,
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};
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@ -53,6 +55,7 @@ enum nci_state {
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#define NCI_RESET_TIMEOUT 5000
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#define NCI_INIT_TIMEOUT 5000
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#define NCI_RF_DISC_TIMEOUT 5000
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#define NCI_RF_DISC_SELECT_TIMEOUT 5000
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#define NCI_RF_DEACTIVATE_TIMEOUT 30000
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#define NCI_CMD_TIMEOUT 5000
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#define NCI_DATA_TIMEOUT 700
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@ -66,6 +69,7 @@ struct nci_ops {
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};
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#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
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#define NCI_MAX_DISCOVERED_TARGETS 10
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/* NCI Core structures */
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struct nci_dev {
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@ -105,9 +109,11 @@ struct nci_dev {
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void *driver_data;
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__u32 poll_prots;
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__u32 target_available_prots;
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__u32 target_active_prot;
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struct nfc_target targets[NCI_MAX_DISCOVERED_TARGETS];
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int n_targets;
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/* received during NCI_OP_CORE_RESET_RSP */
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__u8 nci_ver;
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@ -178,6 +184,7 @@ int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
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int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
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void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
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int err);
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void nci_clear_target_list(struct nci_dev *ndev);
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/* ----- NCI requests ----- */
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#define NCI_REQ_DONE 0
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@ -216,6 +216,39 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
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&cmd);
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}
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struct nci_rf_discover_select_param {
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__u8 rf_discovery_id;
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__u8 rf_protocol;
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};
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static void nci_rf_discover_select_req(struct nci_dev *ndev, unsigned long opt)
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{
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struct nci_rf_discover_select_param *param =
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(struct nci_rf_discover_select_param *)opt;
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struct nci_rf_discover_select_cmd cmd;
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cmd.rf_discovery_id = param->rf_discovery_id;
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cmd.rf_protocol = param->rf_protocol;
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switch (cmd.rf_protocol) {
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case NCI_RF_PROTOCOL_ISO_DEP:
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cmd.rf_interface = NCI_RF_INTERFACE_ISO_DEP;
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break;
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case NCI_RF_PROTOCOL_NFC_DEP:
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cmd.rf_interface = NCI_RF_INTERFACE_NFC_DEP;
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break;
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default:
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cmd.rf_interface = NCI_RF_INTERFACE_FRAME;
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break;
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}
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nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_SELECT_CMD,
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sizeof(struct nci_rf_discover_select_cmd),
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&cmd);
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}
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static void nci_rf_deactivate_req(struct nci_dev *ndev, unsigned long opt)
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{
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struct nci_rf_deactivate_cmd cmd;
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@ -264,6 +297,7 @@ static int nci_open_device(struct nci_dev *ndev)
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if (!rc) {
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set_bit(NCI_UP, &ndev->flags);
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nci_clear_target_list(ndev);
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atomic_set(&ndev->state, NCI_IDLE);
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} else {
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/* Init failed, cleanup */
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@ -361,7 +395,8 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols)
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struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
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int rc;
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if (atomic_read(&ndev->state) == NCI_DISCOVERY) {
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if ((atomic_read(&ndev->state) == NCI_DISCOVERY) ||
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(atomic_read(&ndev->state) == NCI_W4_ALL_DISCOVERIES)) {
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pr_err("unable to start poll, since poll is already active\n");
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return -EBUSY;
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}
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@ -371,8 +406,9 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols)
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return -EBUSY;
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}
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if (atomic_read(&ndev->state) == NCI_POLL_ACTIVE) {
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pr_debug("target is active, implicitly deactivate...\n");
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if ((atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) ||
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(atomic_read(&ndev->state) == NCI_POLL_ACTIVE)) {
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pr_debug("target active or w4 select, implicitly deactivate\n");
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rc = nci_request(ndev, nci_rf_deactivate_req, 0,
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msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT));
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@ -393,7 +429,8 @@ static void nci_stop_poll(struct nfc_dev *nfc_dev)
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{
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struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
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if (atomic_read(&ndev->state) != NCI_DISCOVERY) {
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if ((atomic_read(&ndev->state) != NCI_DISCOVERY) &&
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(atomic_read(&ndev->state) != NCI_W4_ALL_DISCOVERIES)) {
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pr_err("unable to stop poll, since poll is not active\n");
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return;
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}
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@ -406,10 +443,15 @@ static int nci_activate_target(struct nfc_dev *nfc_dev, __u32 target_idx,
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__u32 protocol)
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{
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struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
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struct nci_rf_discover_select_param param;
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struct nfc_target *target = 0;
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int i;
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int rc = 0;
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pr_debug("target_idx %d, protocol 0x%x\n", target_idx, protocol);
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if (atomic_read(&ndev->state) != NCI_POLL_ACTIVE) {
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if ((atomic_read(&ndev->state) != NCI_W4_HOST_SELECT) &&
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(atomic_read(&ndev->state) != NCI_POLL_ACTIVE)) {
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pr_err("there is no available target to activate\n");
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return -EINVAL;
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}
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@ -419,16 +461,47 @@ static int nci_activate_target(struct nfc_dev *nfc_dev, __u32 target_idx,
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return -EBUSY;
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}
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if (!(ndev->target_available_prots & (1 << protocol))) {
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for (i = 0; i < ndev->n_targets; i++) {
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if (ndev->targets[i].idx == target_idx) {
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target = &ndev->targets[i];
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break;
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}
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}
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if (!target) {
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pr_err("unable to find the selected target\n");
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return -EINVAL;
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}
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if (!(target->supported_protocols & (1 << protocol))) {
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pr_err("target does not support the requested protocol 0x%x\n",
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protocol);
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return -EINVAL;
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}
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ndev->target_active_prot = protocol;
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ndev->target_available_prots = 0;
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if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) {
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param.rf_discovery_id = target->idx;
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return 0;
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if (protocol == NFC_PROTO_JEWEL)
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param.rf_protocol = NCI_RF_PROTOCOL_T1T;
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else if (protocol == NFC_PROTO_MIFARE)
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param.rf_protocol = NCI_RF_PROTOCOL_T2T;
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else if (protocol == NFC_PROTO_FELICA)
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param.rf_protocol = NCI_RF_PROTOCOL_T3T;
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else if (protocol == NFC_PROTO_ISO14443)
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param.rf_protocol = NCI_RF_PROTOCOL_ISO_DEP;
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else
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param.rf_protocol = NCI_RF_PROTOCOL_NFC_DEP;
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rc = nci_request(ndev, nci_rf_discover_select_req,
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(unsigned long)¶m,
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msecs_to_jiffies(NCI_RF_DISC_SELECT_TIMEOUT));
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}
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if (!rc)
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ndev->target_active_prot = protocol;
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return rc;
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}
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static void nci_deactivate_target(struct nfc_dev *nfc_dev, __u32 target_idx)
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@ -71,6 +71,20 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev,
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queue_work(ndev->tx_wq, &ndev->tx_work);
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}
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static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev,
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struct sk_buff *skb)
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{
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__u8 status = skb->data[0];
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pr_debug("status 0x%x\n", status);
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if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) {
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/* Activation failed, so complete the request
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(the state remains the same) */
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nci_req_complete(ndev, status);
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}
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}
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static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev,
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struct sk_buff *skb)
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{
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@ -86,12 +100,9 @@ static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev,
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}
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static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev,
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struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
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struct rf_tech_specific_params_nfca_poll *nfca_poll,
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__u8 *data)
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{
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struct rf_tech_specific_params_nfca_poll *nfca_poll;
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nfca_poll = &ntf->rf_tech_specific_params.nfca_poll;
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nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data));
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data += 2;
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@ -116,12 +127,9 @@ static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev,
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}
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static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev,
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struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
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struct rf_tech_specific_params_nfcb_poll *nfcb_poll,
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__u8 *data)
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{
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struct rf_tech_specific_params_nfcb_poll *nfcb_poll;
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nfcb_poll = &ntf->rf_tech_specific_params.nfcb_poll;
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nfcb_poll->sensb_res_len = *data++;
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pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len);
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@ -133,12 +141,9 @@ static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev,
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}
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static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev,
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struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
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struct rf_tech_specific_params_nfcf_poll *nfcf_poll,
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__u8 *data)
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{
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struct rf_tech_specific_params_nfcf_poll *nfcf_poll;
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nfcf_poll = &ntf->rf_tech_specific_params.nfcf_poll;
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nfcf_poll->bit_rate = *data++;
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nfcf_poll->sensf_res_len = *data++;
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@ -151,6 +156,172 @@ static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev,
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return data;
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}
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static int nci_add_new_protocol(struct nci_dev *ndev,
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struct nfc_target *target,
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__u8 rf_protocol,
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__u8 rf_tech_and_mode,
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void *params)
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{
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struct rf_tech_specific_params_nfca_poll *nfca_poll;
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struct rf_tech_specific_params_nfcb_poll *nfcb_poll;
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struct rf_tech_specific_params_nfcf_poll *nfcf_poll;
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__u32 protocol;
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if (rf_protocol == NCI_RF_PROTOCOL_T2T)
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protocol = NFC_PROTO_MIFARE_MASK;
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else if (rf_protocol == NCI_RF_PROTOCOL_ISO_DEP)
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protocol = NFC_PROTO_ISO14443_MASK;
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else if (rf_protocol == NCI_RF_PROTOCOL_T3T)
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protocol = NFC_PROTO_FELICA_MASK;
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else
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protocol = 0;
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if (!(protocol & ndev->poll_prots)) {
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pr_err("the target found does not have the desired protocol\n");
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return -EPROTO;
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}
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if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) {
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nfca_poll = (struct rf_tech_specific_params_nfca_poll *)params;
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target->sens_res = nfca_poll->sens_res;
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target->sel_res = nfca_poll->sel_res;
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target->nfcid1_len = nfca_poll->nfcid1_len;
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if (target->nfcid1_len > 0) {
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memcpy(target->nfcid1, nfca_poll->nfcid1,
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target->nfcid1_len);
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}
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} else if (rf_tech_and_mode == NCI_NFC_B_PASSIVE_POLL_MODE) {
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nfcb_poll = (struct rf_tech_specific_params_nfcb_poll *)params;
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target->sensb_res_len = nfcb_poll->sensb_res_len;
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if (target->sensb_res_len > 0) {
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memcpy(target->sensb_res, nfcb_poll->sensb_res,
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target->sensb_res_len);
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}
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} else if (rf_tech_and_mode == NCI_NFC_F_PASSIVE_POLL_MODE) {
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nfcf_poll = (struct rf_tech_specific_params_nfcf_poll *)params;
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target->sensf_res_len = nfcf_poll->sensf_res_len;
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if (target->sensf_res_len > 0) {
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memcpy(target->sensf_res, nfcf_poll->sensf_res,
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target->sensf_res_len);
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}
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} else {
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pr_err("unsupported rf_tech_and_mode 0x%x\n", rf_tech_and_mode);
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||||
return -EPROTO;
|
||||
}
|
||||
|
||||
target->supported_protocols |= protocol;
|
||||
|
||||
pr_debug("protocol 0x%x\n", protocol);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void nci_add_new_target(struct nci_dev *ndev,
|
||||
struct nci_rf_discover_ntf *ntf)
|
||||
{
|
||||
struct nfc_target *target;
|
||||
int i, rc;
|
||||
|
||||
for (i = 0; i < ndev->n_targets; i++) {
|
||||
target = &ndev->targets[i];
|
||||
if (target->idx == ntf->rf_discovery_id) {
|
||||
/* This target already exists, add the new protocol */
|
||||
nci_add_new_protocol(ndev, target, ntf->rf_protocol,
|
||||
ntf->rf_tech_and_mode,
|
||||
&ntf->rf_tech_specific_params);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/* This is a new target, check if we've enough room */
|
||||
if (ndev->n_targets == NCI_MAX_DISCOVERED_TARGETS) {
|
||||
pr_debug("not enough room, ignoring new target...\n");
|
||||
return;
|
||||
}
|
||||
|
||||
target = &ndev->targets[ndev->n_targets];
|
||||
|
||||
rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol,
|
||||
ntf->rf_tech_and_mode,
|
||||
&ntf->rf_tech_specific_params);
|
||||
if (!rc) {
|
||||
target->idx = ntf->rf_discovery_id;
|
||||
ndev->n_targets++;
|
||||
|
||||
pr_debug("target_idx %d, n_targets %d\n", target->idx,
|
||||
ndev->n_targets);
|
||||
}
|
||||
}
|
||||
|
||||
void nci_clear_target_list(struct nci_dev *ndev)
|
||||
{
|
||||
memset(ndev->targets, 0,
|
||||
(sizeof(struct nfc_target)*NCI_MAX_DISCOVERED_TARGETS));
|
||||
|
||||
ndev->n_targets = 0;
|
||||
}
|
||||
|
||||
static void nci_rf_discover_ntf_packet(struct nci_dev *ndev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct nci_rf_discover_ntf ntf;
|
||||
__u8 *data = skb->data;
|
||||
bool add_target = true;
|
||||
|
||||
ntf.rf_discovery_id = *data++;
|
||||
ntf.rf_protocol = *data++;
|
||||
ntf.rf_tech_and_mode = *data++;
|
||||
ntf.rf_tech_specific_params_len = *data++;
|
||||
|
||||
pr_debug("rf_discovery_id %d\n", ntf.rf_discovery_id);
|
||||
pr_debug("rf_protocol 0x%x\n", ntf.rf_protocol);
|
||||
pr_debug("rf_tech_and_mode 0x%x\n", ntf.rf_tech_and_mode);
|
||||
pr_debug("rf_tech_specific_params_len %d\n",
|
||||
ntf.rf_tech_specific_params_len);
|
||||
|
||||
if (ntf.rf_tech_specific_params_len > 0) {
|
||||
switch (ntf.rf_tech_and_mode) {
|
||||
case NCI_NFC_A_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfca_passive_poll(ndev,
|
||||
&(ntf.rf_tech_specific_params.nfca_poll), data);
|
||||
break;
|
||||
|
||||
case NCI_NFC_B_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfcb_passive_poll(ndev,
|
||||
&(ntf.rf_tech_specific_params.nfcb_poll), data);
|
||||
break;
|
||||
|
||||
case NCI_NFC_F_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfcf_passive_poll(ndev,
|
||||
&(ntf.rf_tech_specific_params.nfcf_poll), data);
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_err("unsupported rf_tech_and_mode 0x%x\n",
|
||||
ntf.rf_tech_and_mode);
|
||||
data += ntf.rf_tech_specific_params_len;
|
||||
add_target = false;
|
||||
}
|
||||
}
|
||||
|
||||
ntf.ntf_type = *data++;
|
||||
pr_debug("ntf_type %d\n", ntf.ntf_type);
|
||||
|
||||
if (add_target == true)
|
||||
nci_add_new_target(ndev, &ntf);
|
||||
|
||||
if (ntf.ntf_type == NCI_DISCOVER_NTF_TYPE_MORE) {
|
||||
atomic_set(&ndev->state, NCI_W4_ALL_DISCOVERIES);
|
||||
} else {
|
||||
atomic_set(&ndev->state, NCI_W4_HOST_SELECT);
|
||||
nfc_targets_found(ndev->nfc_dev, ndev->targets,
|
||||
ndev->n_targets);
|
||||
}
|
||||
}
|
||||
|
||||
static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev,
|
||||
struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
|
||||
{
|
||||
@ -184,74 +355,32 @@ static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev,
|
||||
default:
|
||||
pr_err("unsupported activation_rf_tech_and_mode 0x%x\n",
|
||||
ntf->activation_rf_tech_and_mode);
|
||||
return -EPROTO;
|
||||
return NCI_STATUS_RF_PROTOCOL_ERROR;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return NCI_STATUS_OK;
|
||||
}
|
||||
|
||||
static void nci_target_found(struct nci_dev *ndev,
|
||||
struct nci_rf_intf_activated_ntf *ntf)
|
||||
static void nci_target_auto_activated(struct nci_dev *ndev,
|
||||
struct nci_rf_intf_activated_ntf *ntf)
|
||||
{
|
||||
struct nfc_target nfc_tgt;
|
||||
struct nfc_target *target;
|
||||
int rc;
|
||||
|
||||
memset(&nfc_tgt, 0, sizeof(nfc_tgt));
|
||||
target = &ndev->targets[ndev->n_targets];
|
||||
|
||||
if (ntf->rf_protocol == NCI_RF_PROTOCOL_T2T)
|
||||
nfc_tgt.supported_protocols = NFC_PROTO_MIFARE_MASK;
|
||||
else if (ntf->rf_protocol == NCI_RF_PROTOCOL_ISO_DEP)
|
||||
nfc_tgt.supported_protocols = NFC_PROTO_ISO14443_MASK;
|
||||
else if (ntf->rf_protocol == NCI_RF_PROTOCOL_T3T)
|
||||
nfc_tgt.supported_protocols = NFC_PROTO_FELICA_MASK;
|
||||
|
||||
if (!(nfc_tgt.supported_protocols & ndev->poll_prots)) {
|
||||
pr_debug("the target found does not have the desired protocol\n");
|
||||
rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol,
|
||||
ntf->activation_rf_tech_and_mode,
|
||||
&ntf->rf_tech_specific_params);
|
||||
if (rc)
|
||||
return;
|
||||
}
|
||||
|
||||
pr_debug("new target found, supported_protocols 0x%x\n",
|
||||
nfc_tgt.supported_protocols);
|
||||
target->idx = ntf->rf_discovery_id;
|
||||
ndev->n_targets++;
|
||||
|
||||
if (ntf->activation_rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) {
|
||||
nfc_tgt.sens_res =
|
||||
ntf->rf_tech_specific_params.nfca_poll.sens_res;
|
||||
nfc_tgt.sel_res =
|
||||
ntf->rf_tech_specific_params.nfca_poll.sel_res;
|
||||
nfc_tgt.nfcid1_len =
|
||||
ntf->rf_tech_specific_params.nfca_poll.nfcid1_len;
|
||||
if (nfc_tgt.nfcid1_len > 0) {
|
||||
memcpy(nfc_tgt.nfcid1,
|
||||
ntf->rf_tech_specific_params.nfca_poll.nfcid1,
|
||||
nfc_tgt.nfcid1_len);
|
||||
}
|
||||
} else if (ntf->activation_rf_tech_and_mode ==
|
||||
NCI_NFC_B_PASSIVE_POLL_MODE) {
|
||||
nfc_tgt.sensb_res_len =
|
||||
ntf->rf_tech_specific_params.nfcb_poll.sensb_res_len;
|
||||
if (nfc_tgt.sensb_res_len > 0) {
|
||||
memcpy(nfc_tgt.sensb_res,
|
||||
ntf->rf_tech_specific_params.nfcb_poll.sensb_res,
|
||||
nfc_tgt.sensb_res_len);
|
||||
}
|
||||
} else if (ntf->activation_rf_tech_and_mode ==
|
||||
NCI_NFC_F_PASSIVE_POLL_MODE) {
|
||||
nfc_tgt.sensf_res_len =
|
||||
ntf->rf_tech_specific_params.nfcf_poll.sensf_res_len;
|
||||
if (nfc_tgt.sensf_res_len > 0) {
|
||||
memcpy(nfc_tgt.sensf_res,
|
||||
ntf->rf_tech_specific_params.nfcf_poll.sensf_res,
|
||||
nfc_tgt.sensf_res_len);
|
||||
}
|
||||
}
|
||||
pr_debug("target_idx %d, n_targets %d\n", target->idx, ndev->n_targets);
|
||||
|
||||
ndev->target_available_prots = nfc_tgt.supported_protocols;
|
||||
ndev->max_data_pkt_payload_size = ntf->max_data_pkt_payload_size;
|
||||
ndev->initial_num_credits = ntf->initial_num_credits;
|
||||
|
||||
/* set the available credits to initial value */
|
||||
atomic_set(&ndev->credits_cnt, ndev->initial_num_credits);
|
||||
|
||||
nfc_targets_found(ndev->nfc_dev, &nfc_tgt, 1);
|
||||
nfc_targets_found(ndev->nfc_dev, ndev->targets, ndev->n_targets);
|
||||
}
|
||||
|
||||
static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
|
||||
@ -259,9 +388,7 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
|
||||
{
|
||||
struct nci_rf_intf_activated_ntf ntf;
|
||||
__u8 *data = skb->data;
|
||||
int err = 0;
|
||||
|
||||
atomic_set(&ndev->state, NCI_POLL_ACTIVE);
|
||||
int err = NCI_STATUS_OK;
|
||||
|
||||
ntf.rf_discovery_id = *data++;
|
||||
ntf.rf_interface = *data++;
|
||||
@ -286,23 +413,24 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
|
||||
switch (ntf.activation_rf_tech_and_mode) {
|
||||
case NCI_NFC_A_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfca_passive_poll(ndev,
|
||||
&ntf, data);
|
||||
&(ntf.rf_tech_specific_params.nfca_poll), data);
|
||||
break;
|
||||
|
||||
case NCI_NFC_B_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfcb_passive_poll(ndev,
|
||||
&ntf, data);
|
||||
&(ntf.rf_tech_specific_params.nfcb_poll), data);
|
||||
break;
|
||||
|
||||
case NCI_NFC_F_PASSIVE_POLL_MODE:
|
||||
data = nci_extract_rf_params_nfcf_passive_poll(ndev,
|
||||
&ntf, data);
|
||||
&(ntf.rf_tech_specific_params.nfcf_poll), data);
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_err("unsupported activation_rf_tech_and_mode 0x%x\n",
|
||||
ntf.activation_rf_tech_and_mode);
|
||||
return;
|
||||
err = NCI_STATUS_RF_PROTOCOL_ERROR;
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
|
||||
@ -334,12 +462,30 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
|
||||
default:
|
||||
pr_err("unsupported rf_interface 0x%x\n",
|
||||
ntf.rf_interface);
|
||||
return;
|
||||
err = NCI_STATUS_RF_PROTOCOL_ERROR;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!err)
|
||||
nci_target_found(ndev, &ntf);
|
||||
exit:
|
||||
if (err == NCI_STATUS_OK) {
|
||||
ndev->max_data_pkt_payload_size = ntf.max_data_pkt_payload_size;
|
||||
ndev->initial_num_credits = ntf.initial_num_credits;
|
||||
|
||||
/* set the available credits to initial value */
|
||||
atomic_set(&ndev->credits_cnt, ndev->initial_num_credits);
|
||||
}
|
||||
|
||||
if (atomic_read(&ndev->state) == NCI_DISCOVERY) {
|
||||
/* A single target was found and activated automatically */
|
||||
atomic_set(&ndev->state, NCI_POLL_ACTIVE);
|
||||
if (err == NCI_STATUS_OK)
|
||||
nci_target_auto_activated(ndev, &ntf);
|
||||
} else { /* ndev->state == NCI_W4_HOST_SELECT */
|
||||
/* A selected target was activated, so complete the request */
|
||||
atomic_set(&ndev->state, NCI_POLL_ACTIVE);
|
||||
nci_req_complete(ndev, err);
|
||||
}
|
||||
}
|
||||
|
||||
static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev,
|
||||
@ -349,9 +495,6 @@ static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev,
|
||||
|
||||
pr_debug("entry, type 0x%x, reason 0x%x\n", ntf->type, ntf->reason);
|
||||
|
||||
atomic_set(&ndev->state, NCI_IDLE);
|
||||
ndev->target_active_prot = 0;
|
||||
|
||||
/* drop tx data queue */
|
||||
skb_queue_purge(&ndev->tx_q);
|
||||
|
||||
@ -365,6 +508,8 @@ static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev,
|
||||
if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags))
|
||||
nci_data_exchange_complete(ndev, NULL, -EIO);
|
||||
|
||||
nci_clear_target_list(ndev);
|
||||
atomic_set(&ndev->state, NCI_IDLE);
|
||||
nci_req_complete(ndev, NCI_STATUS_OK);
|
||||
}
|
||||
|
||||
@ -386,10 +531,18 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
|
||||
nci_core_conn_credits_ntf_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_CORE_GENERIC_ERROR_NTF:
|
||||
nci_core_generic_error_ntf_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_CORE_INTF_ERROR_NTF:
|
||||
nci_core_conn_intf_error_ntf_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_RF_DISCOVER_NTF:
|
||||
nci_rf_discover_ntf_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_RF_INTF_ACTIVATED_NTF:
|
||||
nci_rf_intf_activated_ntf_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
@ -142,6 +142,18 @@ static void nci_rf_disc_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
|
||||
nci_req_complete(ndev, status);
|
||||
}
|
||||
|
||||
static void nci_rf_disc_select_rsp_packet(struct nci_dev *ndev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
__u8 status = skb->data[0];
|
||||
|
||||
pr_debug("status 0x%x\n", status);
|
||||
|
||||
/* Complete the request on intf_activated_ntf or generic_error_ntf */
|
||||
if (status != NCI_STATUS_OK)
|
||||
nci_req_complete(ndev, status);
|
||||
}
|
||||
|
||||
static void nci_rf_deactivate_rsp_packet(struct nci_dev *ndev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
@ -152,6 +164,7 @@ static void nci_rf_deactivate_rsp_packet(struct nci_dev *ndev,
|
||||
/* If target was active, complete the request only in deactivate_ntf */
|
||||
if ((status != NCI_STATUS_OK) ||
|
||||
(atomic_read(&ndev->state) != NCI_POLL_ACTIVE)) {
|
||||
nci_clear_target_list(ndev);
|
||||
atomic_set(&ndev->state, NCI_IDLE);
|
||||
nci_req_complete(ndev, status);
|
||||
}
|
||||
@ -190,6 +203,10 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
|
||||
nci_rf_disc_rsp_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_RF_DISCOVER_SELECT_RSP:
|
||||
nci_rf_disc_select_rsp_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
case NCI_OP_RF_DEACTIVATE_RSP:
|
||||
nci_rf_deactivate_rsp_packet(ndev, skb);
|
||||
break;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user