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Diffstat (limited to 'net/nfc/nci/core.c')
-rw-r--r--net/nfc/nci/core.c150
1 files changed, 134 insertions, 16 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 90b16cb40058..51feb5e63008 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -3,6 +3,7 @@
* NFC Controller (NFCC) and a Device Host (DH).
*
* Copyright (C) 2011 Texas Instruments, Inc.
+ * Copyright (C) 2014 Marvell International Ltd.
*
* Written by Ilan Elias <ilane@ti.com>
*
@@ -196,18 +197,24 @@ static void nci_set_config_req(struct nci_dev *ndev, unsigned long opt)
nci_send_cmd(ndev, NCI_OP_CORE_SET_CONFIG_CMD, (3 + param->len), &cmd);
}
+struct nci_rf_discover_param {
+ __u32 im_protocols;
+ __u32 tm_protocols;
+};
+
static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
{
+ struct nci_rf_discover_param *param =
+ (struct nci_rf_discover_param *)opt;
struct nci_rf_disc_cmd cmd;
- __u32 protocols = opt;
cmd.num_disc_configs = 0;
if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
- (protocols & NFC_PROTO_JEWEL_MASK ||
- protocols & NFC_PROTO_MIFARE_MASK ||
- protocols & NFC_PROTO_ISO14443_MASK ||
- protocols & NFC_PROTO_NFC_DEP_MASK)) {
+ (param->im_protocols & NFC_PROTO_JEWEL_MASK ||
+ param->im_protocols & NFC_PROTO_MIFARE_MASK ||
+ param->im_protocols & NFC_PROTO_ISO14443_MASK ||
+ param->im_protocols & NFC_PROTO_NFC_DEP_MASK)) {
cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
NCI_NFC_A_PASSIVE_POLL_MODE;
cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
@@ -215,7 +222,7 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
}
if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
- (protocols & NFC_PROTO_ISO14443_B_MASK)) {
+ (param->im_protocols & NFC_PROTO_ISO14443_B_MASK)) {
cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
NCI_NFC_B_PASSIVE_POLL_MODE;
cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
@@ -223,8 +230,8 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
}
if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
- (protocols & NFC_PROTO_FELICA_MASK ||
- protocols & NFC_PROTO_NFC_DEP_MASK)) {
+ (param->im_protocols & NFC_PROTO_FELICA_MASK ||
+ param->im_protocols & NFC_PROTO_NFC_DEP_MASK)) {
cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
NCI_NFC_F_PASSIVE_POLL_MODE;
cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
@@ -232,13 +239,25 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt)
}
if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) &&
- (protocols & NFC_PROTO_ISO15693_MASK)) {
+ (param->im_protocols & NFC_PROTO_ISO15693_MASK)) {
cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
NCI_NFC_V_PASSIVE_POLL_MODE;
cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
cmd.num_disc_configs++;
}
+ if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS - 1) &&
+ (param->tm_protocols & NFC_PROTO_NFC_DEP_MASK)) {
+ cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
+ NCI_NFC_A_PASSIVE_LISTEN_MODE;
+ cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
+ cmd.num_disc_configs++;
+ cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode =
+ NCI_NFC_F_PASSIVE_LISTEN_MODE;
+ cmd.disc_configs[cmd.num_disc_configs].frequency = 1;
+ cmd.num_disc_configs++;
+ }
+
nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_CMD,
(1 + (cmd.num_disc_configs * sizeof(struct disc_config))),
&cmd);
@@ -280,7 +299,7 @@ static void nci_rf_deactivate_req(struct nci_dev *ndev, unsigned long opt)
{
struct nci_rf_deactivate_cmd cmd;
- cmd.type = NCI_DEACTIVATE_TYPE_IDLE_MODE;
+ cmd.type = opt;
nci_send_cmd(ndev, NCI_OP_RF_DEACTIVATE_CMD,
sizeof(struct nci_rf_deactivate_cmd), &cmd);
@@ -441,6 +460,7 @@ 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;
+ int rc;
param.val = nfc_get_local_general_bytes(nfc_dev, &param.len);
if ((param.val == NULL) || (param.len == 0))
@@ -451,14 +471,45 @@ static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
param.id = NCI_PN_ATR_REQ_GEN_BYTES;
+ rc = nci_request(ndev, nci_set_config_req, (unsigned long)&param,
+ msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));
+ if (rc)
+ return rc;
+
+ param.id = NCI_LN_ATR_RES_GEN_BYTES;
+
return nci_request(ndev, nci_set_config_req, (unsigned long)&param,
msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));
}
+static int nci_set_listen_parameters(struct nfc_dev *nfc_dev)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+ int rc;
+ __u8 val;
+
+ val = NCI_LA_SEL_INFO_NFC_DEP_MASK;
+
+ rc = nci_set_config(ndev, NCI_LA_SEL_INFO, 1, &val);
+ if (rc)
+ return rc;
+
+ val = NCI_LF_PROTOCOL_TYPE_NFC_DEP_MASK;
+
+ rc = nci_set_config(ndev, NCI_LF_PROTOCOL_TYPE, 1, &val);
+ if (rc)
+ return rc;
+
+ val = NCI_LF_CON_BITR_F_212 | NCI_LF_CON_BITR_F_424;
+
+ return nci_set_config(ndev, NCI_LF_CON_BITR_F, 1, &val);
+}
+
static int nci_start_poll(struct nfc_dev *nfc_dev,
__u32 im_protocols, __u32 tm_protocols)
{
struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+ struct nci_rf_discover_param param;
int rc;
if ((atomic_read(&ndev->state) == NCI_DISCOVERY) ||
@@ -476,13 +527,14 @@ static int nci_start_poll(struct nfc_dev *nfc_dev,
(atomic_read(&ndev->state) == NCI_POLL_ACTIVE)) {
pr_debug("target active or w4 select, implicitly deactivate\n");
- rc = nci_request(ndev, nci_rf_deactivate_req, 0,
+ rc = nci_request(ndev, nci_rf_deactivate_req,
+ NCI_DEACTIVATE_TYPE_IDLE_MODE,
msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT));
if (rc)
return -EBUSY;
}
- if (im_protocols & NFC_PROTO_NFC_DEP_MASK) {
+ if ((im_protocols | tm_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");
@@ -490,7 +542,15 @@ static int nci_start_poll(struct nfc_dev *nfc_dev,
}
}
- rc = nci_request(ndev, nci_rf_discover_req, im_protocols,
+ if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
+ rc = nci_set_listen_parameters(nfc_dev);
+ if (rc)
+ pr_err("failed to set listen parameters\n");
+ }
+
+ param.im_protocols = im_protocols;
+ param.tm_protocols = tm_protocols;
+ rc = nci_request(ndev, nci_rf_discover_req, (unsigned long)&param,
msecs_to_jiffies(NCI_RF_DISC_TIMEOUT));
if (!rc)
@@ -509,7 +569,7 @@ static void nci_stop_poll(struct nfc_dev *nfc_dev)
return;
}
- nci_request(ndev, nci_rf_deactivate_req, 0,
+ nci_request(ndev, nci_rf_deactivate_req, NCI_DEACTIVATE_TYPE_IDLE_MODE,
msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT));
}
@@ -594,7 +654,8 @@ static void nci_deactivate_target(struct nfc_dev *nfc_dev,
ndev->target_active_prot = 0;
if (atomic_read(&ndev->state) == NCI_POLL_ACTIVE) {
- nci_request(ndev, nci_rf_deactivate_req, 0,
+ nci_request(ndev, nci_rf_deactivate_req,
+ NCI_DEACTIVATE_TYPE_SLEEP_MODE,
msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT));
}
}
@@ -622,9 +683,24 @@ static int nci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
static int nci_dep_link_down(struct nfc_dev *nfc_dev)
{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+ int rc;
+
pr_debug("entry\n");
- nci_deactivate_target(nfc_dev, NULL);
+ if (nfc_dev->rf_mode == NFC_RF_INITIATOR) {
+ nci_deactivate_target(nfc_dev, NULL);
+ } else {
+ if (atomic_read(&ndev->state) == NCI_LISTEN_ACTIVE ||
+ atomic_read(&ndev->state) == NCI_DISCOVERY) {
+ nci_request(ndev, nci_rf_deactivate_req, 0,
+ msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT));
+ }
+
+ rc = nfc_tm_deactivated(nfc_dev);
+ if (rc)
+ pr_err("error when signaling tm deactivation\n");
+ }
return 0;
}
@@ -658,18 +734,58 @@ static int nci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
return rc;
}
+static int nci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+ int rc;
+
+ rc = nci_send_data(ndev, NCI_STATIC_RF_CONN_ID, skb);
+ if (rc)
+ pr_err("unable to send data\n");
+
+ return rc;
+}
+
static int nci_enable_se(struct nfc_dev *nfc_dev, u32 se_idx)
{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+
+ if (ndev->ops->enable_se)
+ return ndev->ops->enable_se(ndev, se_idx);
+
return 0;
}
static int nci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx)
{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+
+ if (ndev->ops->disable_se)
+ return ndev->ops->disable_se(ndev, se_idx);
+
return 0;
}
static int nci_discover_se(struct nfc_dev *nfc_dev)
{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+
+ if (ndev->ops->discover_se)
+ return ndev->ops->discover_se(ndev);
+
+ return 0;
+}
+
+static int nci_se_io(struct nfc_dev *nfc_dev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
+
+ if (ndev->ops->se_io)
+ return ndev->ops->se_io(ndev, se_idx, apdu,
+ apdu_length, cb, cb_context);
+
return 0;
}
@@ -683,9 +799,11 @@ static struct nfc_ops nci_nfc_ops = {
.activate_target = nci_activate_target,
.deactivate_target = nci_deactivate_target,
.im_transceive = nci_transceive,
+ .tm_send = nci_tm_send,
.enable_se = nci_enable_se,
.disable_se = nci_disable_se,
.discover_se = nci_discover_se,
+ .se_io = nci_se_io,
};
/* ---- Interface to NCI drivers ---- */