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-rw-r--r--include/net/nfc/nci.h34
-rw-r--r--net/nfc/nci/core.c18
-rw-r--r--net/nfc/nci/ntf.c21
-rw-r--r--net/nfc/nci/rsp.c81
4 files changed, 138 insertions, 16 deletions
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 0550e0380b8d..e82f55f543bb 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -25,6 +25,8 @@
#define NCI_MAX_PARAM_LEN 251
#define NCI_MAX_PAYLOAD_SIZE 255
#define NCI_MAX_PACKET_SIZE 258
+#define NCI_MAX_LARGE_PARAMS_NCI_v2 15
+#define NCI_VER_2_MASK 0x20
/* NCI Status Codes */
#define NCI_STATUS_OK 0x00
@@ -131,6 +133,9 @@
#define NCI_LF_CON_BITR_F_212 0x02
#define NCI_LF_CON_BITR_F_424 0x04
+/* NCI 2.x Feature Enable Bit */
+#define NCI_FEATURE_DISABLE 0x00
+
/* NCI Reset types */
#define NCI_RESET_TYPE_KEEP_CONFIG 0x00
#define NCI_RESET_TYPE_RESET_CONFIG 0x01
@@ -220,6 +225,11 @@ struct nci_core_reset_cmd {
} __packed;
#define NCI_OP_CORE_INIT_CMD nci_opcode_pack(NCI_GID_CORE, 0x01)
+/* To support NCI 2.x */
+struct nci_core_init_v2_cmd {
+ u8 feature1;
+ u8 feature2;
+};
#define NCI_OP_CORE_SET_CONFIG_CMD nci_opcode_pack(NCI_GID_CORE, 0x02)
struct set_config_param {
@@ -334,6 +344,20 @@ struct nci_core_init_rsp_2 {
__le32 manufact_specific_info;
} __packed;
+/* To support NCI ver 2.x */
+struct nci_core_init_rsp_nci_ver2 {
+ u8 status;
+ __le32 nfcc_features;
+ u8 max_logical_connections;
+ __le16 max_routing_table_size;
+ u8 max_ctrl_pkt_payload_len;
+ u8 max_data_pkt_hci_payload_len;
+ u8 number_of_hci_credit;
+ __le16 max_nfc_v_frame_size;
+ u8 num_supported_rf_interfaces;
+ u8 supported_rf_interfaces[];
+} __packed;
+
#define NCI_OP_CORE_SET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x02)
struct nci_core_set_config_rsp {
__u8 status;
@@ -372,6 +396,16 @@ struct nci_nfcee_discover_rsp {
/* --------------------------- */
/* ---- NCI Notifications ---- */
/* --------------------------- */
+#define NCI_OP_CORE_RESET_NTF nci_opcode_pack(NCI_GID_CORE, 0x00)
+struct nci_core_reset_ntf {
+ u8 reset_trigger;
+ u8 config_status;
+ u8 nci_ver;
+ u8 manufact_id;
+ u8 manufacturer_specific_len;
+ __le32 manufact_specific_info;
+} __packed;
+
#define NCI_OP_CORE_CONN_CREDITS_NTF nci_opcode_pack(NCI_GID_CORE, 0x06)
struct conn_credit_entry {
__u8 conn_id;
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 4953ee5146e1..e64727e1a72f 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -165,7 +165,12 @@ static void nci_reset_req(struct nci_dev *ndev, unsigned long opt)
static void nci_init_req(struct nci_dev *ndev, unsigned long opt)
{
- nci_send_cmd(ndev, NCI_OP_CORE_INIT_CMD, 0, NULL);
+ u8 plen = 0;
+
+ if (opt)
+ plen = sizeof(struct nci_core_init_v2_cmd);
+
+ nci_send_cmd(ndev, NCI_OP_CORE_INIT_CMD, plen, (void *)opt);
}
static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt)
@@ -497,7 +502,16 @@ static int nci_open_device(struct nci_dev *ndev)
}
if (!rc) {
- rc = __nci_request(ndev, nci_init_req, 0,
+ struct nci_core_init_v2_cmd nci_init_v2_cmd = {
+ .feature1 = NCI_FEATURE_DISABLE,
+ .feature2 = NCI_FEATURE_DISABLE
+ };
+ unsigned long opt = 0;
+
+ if (!(ndev->nci_ver & NCI_VER_2_MASK))
+ opt = (unsigned long)&nci_init_v2_cmd;
+
+ rc = __nci_request(ndev, nci_init_req, opt,
msecs_to_jiffies(NCI_INIT_TIMEOUT));
}
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 33e1170817f0..98af04c86b2c 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -27,6 +27,23 @@
/* Handle NCI Notification packets */
+static void nci_core_reset_ntf_packet(struct nci_dev *ndev,
+ struct sk_buff *skb)
+{
+ /* Handle NCI 2.x core reset notification */
+ struct nci_core_reset_ntf *ntf = (void *)skb->data;
+
+ ndev->nci_ver = ntf->nci_ver;
+ pr_debug("nci_ver 0x%x, config_status 0x%x\n",
+ ntf->nci_ver, ntf->config_status);
+
+ ndev->manufact_id = ntf->manufact_id;
+ ndev->manufact_specific_info =
+ __le32_to_cpu(ntf->manufact_specific_info);
+
+ nci_req_complete(ndev, NCI_STATUS_OK);
+}
+
static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev,
struct sk_buff *skb)
{
@@ -756,6 +773,10 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
}
switch (ntf_opcode) {
+ case NCI_OP_CORE_RESET_NTF:
+ nci_core_reset_ntf_packet(ndev, skb);
+ break;
+
case NCI_OP_CORE_CONN_CREDITS_NTF:
nci_core_conn_credits_ntf_packet(ndev, skb);
break;
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index a48297b79f34..e9605922a322 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -31,16 +31,19 @@ static void nci_core_reset_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
pr_debug("status 0x%x\n", rsp->status);
- if (rsp->status == NCI_STATUS_OK) {
- ndev->nci_ver = rsp->nci_ver;
- pr_debug("nci_ver 0x%x, config_status 0x%x\n",
- rsp->nci_ver, rsp->config_status);
- }
+ /* Handle NCI 1.x ver */
+ if (skb->len != 1) {
+ if (rsp->status == NCI_STATUS_OK) {
+ ndev->nci_ver = rsp->nci_ver;
+ pr_debug("nci_ver 0x%x, config_status 0x%x\n",
+ rsp->nci_ver, rsp->config_status);
+ }
- nci_req_complete(ndev, rsp->status);
+ nci_req_complete(ndev, rsp->status);
+ }
}
-static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
+static u8 nci_core_init_rsp_packet_v1(struct nci_dev *ndev, struct sk_buff *skb)
{
struct nci_core_init_rsp_1 *rsp_1 = (void *) skb->data;
struct nci_core_init_rsp_2 *rsp_2;
@@ -48,16 +51,14 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
pr_debug("status 0x%x\n", rsp_1->status);
if (rsp_1->status != NCI_STATUS_OK)
- goto exit;
+ return rsp_1->status;
ndev->nfcc_features = __le32_to_cpu(rsp_1->nfcc_features);
ndev->num_supported_rf_interfaces = rsp_1->num_supported_rf_interfaces;
- if (ndev->num_supported_rf_interfaces >
- NCI_MAX_SUPPORTED_RF_INTERFACES) {
- ndev->num_supported_rf_interfaces =
- NCI_MAX_SUPPORTED_RF_INTERFACES;
- }
+ ndev->num_supported_rf_interfaces =
+ min((int)ndev->num_supported_rf_interfaces,
+ NCI_MAX_SUPPORTED_RF_INTERFACES);
memcpy(ndev->supported_rf_interfaces,
rsp_1->supported_rf_interfaces,
@@ -77,6 +78,58 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
ndev->manufact_specific_info =
__le32_to_cpu(rsp_2->manufact_specific_info);
+ return NCI_STATUS_OK;
+}
+
+static u8 nci_core_init_rsp_packet_v2(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ struct nci_core_init_rsp_nci_ver2 *rsp = (void *)skb->data;
+ u8 *supported_rf_interface = rsp->supported_rf_interfaces;
+ u8 rf_interface_idx = 0;
+ u8 rf_extension_cnt = 0;
+
+ pr_debug("status %x\n", rsp->status);
+
+ if (rsp->status != NCI_STATUS_OK)
+ return rsp->status;
+
+ ndev->nfcc_features = __le32_to_cpu(rsp->nfcc_features);
+ ndev->num_supported_rf_interfaces = rsp->num_supported_rf_interfaces;
+
+ ndev->num_supported_rf_interfaces =
+ min((int)ndev->num_supported_rf_interfaces,
+ NCI_MAX_SUPPORTED_RF_INTERFACES);
+
+ while (rf_interface_idx < ndev->num_supported_rf_interfaces) {
+ ndev->supported_rf_interfaces[rf_interface_idx++] = *supported_rf_interface++;
+
+ /* skip rf extension parameters */
+ rf_extension_cnt = *supported_rf_interface++;
+ supported_rf_interface += rf_extension_cnt;
+ }
+
+ ndev->max_logical_connections = rsp->max_logical_connections;
+ ndev->max_routing_table_size =
+ __le16_to_cpu(rsp->max_routing_table_size);
+ ndev->max_ctrl_pkt_payload_len =
+ rsp->max_ctrl_pkt_payload_len;
+ ndev->max_size_for_large_params = NCI_MAX_LARGE_PARAMS_NCI_v2;
+
+ return NCI_STATUS_OK;
+}
+
+static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
+{
+ u8 status = 0;
+
+ if (!(ndev->nci_ver & NCI_VER_2_MASK))
+ status = nci_core_init_rsp_packet_v1(ndev, skb);
+ else
+ status = nci_core_init_rsp_packet_v2(ndev, skb);
+
+ if (status != NCI_STATUS_OK)
+ goto exit;
+
pr_debug("nfcc_features 0x%x\n",
ndev->nfcc_features);
pr_debug("num_supported_rf_interfaces %d\n",
@@ -103,7 +156,7 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
ndev->manufact_specific_info);
exit:
- nci_req_complete(ndev, rsp_1->status);
+ nci_req_complete(ndev, status);
}
static void nci_core_set_config_rsp_packet(struct nci_dev *ndev,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 09:43:45 +0000