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authorJohn W. Linville <linville@tuxdriver.com>2014-01-17 14:43:17 -0500
committerJohn W. Linville <linville@tuxdriver.com>2014-01-17 14:43:17 -0500
commit7916a075571f0ccd0830cf3da293188a8b6045e3 (patch)
tree119c5bb9e513c8205efed485c2dc7b8271123326 /net/nfc
parentcf84eb0b09c0f09b4c70a648b9dfeec78be61f07 (diff)
parente4e19c031901e95dc7d1cf0a2c9c50525d71651f (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/core.c7
-rw-r--r--net/nfc/digital_core.c28
-rw-r--r--net/nfc/digital_dep.c54
-rw-r--r--net/nfc/hci/core.c7
-rw-r--r--net/nfc/llcp_commands.c6
-rw-r--r--net/nfc/llcp_core.c1
-rw-r--r--net/nfc/llcp_sock.c1
-rw-r--r--net/nfc/nci/core.c27
8 files changed, 91 insertions, 40 deletions
diff --git a/net/nfc/core.c b/net/nfc/core.c
index b675fa4a6f19..ca1e65f4b133 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -133,11 +133,8 @@ int nfc_dev_up(struct nfc_dev *dev)
dev->dev_up = true;
/* We have to enable the device before discovering SEs */
- if (dev->ops->discover_se) {
- rc = dev->ops->discover_se(dev);
- if (rc)
- pr_warn("SE discovery failed\n");
- }
+ if (dev->ops->discover_se && dev->ops->discover_se(dev))
+ pr_err("SE discovery failed\n");
error:
device_unlock(&dev->dev);
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 09fc95439955..c129d1571ca6 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -339,7 +339,6 @@ int digital_target_found(struct nfc_digital_dev *ddev,
pr_debug("rf_tech=%d, protocol=%d\n", rf_tech, protocol);
ddev->curr_rf_tech = rf_tech;
- ddev->curr_protocol = protocol;
if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
ddev->skb_add_crc = digital_skb_add_crc_none;
@@ -541,8 +540,14 @@ static int digital_dep_link_up(struct nfc_dev *nfc_dev,
__u8 comm_mode, __u8 *gb, size_t gb_len)
{
struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+ int rc;
+
+ rc = digital_in_send_atr_req(ddev, target, comm_mode, gb, gb_len);
- return digital_in_send_atr_req(ddev, target, comm_mode, gb, gb_len);
+ if (!rc)
+ ddev->curr_protocol = NFC_PROTO_NFC_DEP;
+
+ return rc;
}
static int digital_dep_link_down(struct nfc_dev *nfc_dev)
@@ -557,6 +562,20 @@ static int digital_dep_link_down(struct nfc_dev *nfc_dev)
static int digital_activate_target(struct nfc_dev *nfc_dev,
struct nfc_target *target, __u32 protocol)
{
+ struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+ if (ddev->poll_tech_count) {
+ pr_err("Can't activate a target while polling\n");
+ return -EBUSY;
+ }
+
+ if (ddev->curr_protocol) {
+ pr_err("A target is already active\n");
+ return -EBUSY;
+ }
+
+ ddev->curr_protocol = protocol;
+
return 0;
}
@@ -565,6 +584,11 @@ static void digital_deactivate_target(struct nfc_dev *nfc_dev,
{
struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+ if (!ddev->curr_protocol) {
+ pr_err("No active target\n");
+ return;
+ }
+
ddev->curr_protocol = 0;
}
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
index 07bbc24fb4c7..43e450f78d0a 100644
--- a/net/nfc/digital_dep.c
+++ b/net/nfc/digital_dep.c
@@ -32,7 +32,6 @@
#define DIGITAL_ATR_REQ_MIN_SIZE 16
#define DIGITAL_ATR_REQ_MAX_SIZE 64
-#define DIGITAL_NFCID3_LEN ((u8)8)
#define DIGITAL_LR_BITS_PAYLOAD_SIZE_254B 0x30
#define DIGITAL_GB_BIT 0x02
@@ -206,10 +205,9 @@ int digital_in_send_atr_req(struct nfc_digital_dev *ddev,
atr_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
atr_req->cmd = DIGITAL_CMD_ATR_REQ;
if (target->nfcid2_len)
- memcpy(atr_req->nfcid3, target->nfcid2,
- max(target->nfcid2_len, DIGITAL_NFCID3_LEN));
+ memcpy(atr_req->nfcid3, target->nfcid2, NFC_NFCID2_MAXSIZE);
else
- get_random_bytes(atr_req->nfcid3, DIGITAL_NFCID3_LEN);
+ get_random_bytes(atr_req->nfcid3, NFC_NFCID3_MAXSIZE);
atr_req->did = 0;
atr_req->bs = 0;
@@ -382,6 +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)
{
@@ -472,11 +497,13 @@ int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb)
static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev,
void *arg, struct sk_buff *resp)
{
- u8 rf_tech = PTR_ERR(arg);
+ u8 rf_tech = (unsigned long)arg;
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);
@@ -508,7 +535,7 @@ static int digital_tg_send_psl_res(struct nfc_digital_dev *ddev, u8 did,
ddev->skb_add_crc(skb);
rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,
- ERR_PTR(rf_tech));
+ (void *)(unsigned long)rf_tech);
if (rc)
kfree_skb(skb);
@@ -661,16 +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) {
@@ -678,10 +699,7 @@ 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);
if (rc) {
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 3b9610031baa..d45b638e77c7 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -335,11 +335,8 @@ exit:
kfree_skb(skb);
exit_noskb:
- if (r) {
- /* TODO: There was an error dispatching the event,
- * how to propagate up to nfc core?
- */
- }
+ if (r)
+ nfc_hci_driver_failure(hdev, r);
}
static void nfc_hci_cmd_timeout(unsigned long data)
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index 693cd1aad582..bec6ed15f503 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -675,7 +675,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
do {
remote_miu = sock->remote_miu > LLCP_MAX_MIU ?
- local->remote_miu : sock->remote_miu;
+ LLCP_DEFAULT_MIU : sock->remote_miu;
frag_len = min_t(size_t, remote_miu, remaining_len);
@@ -684,8 +684,10 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
pdu = llcp_allocate_pdu(sock, LLCP_PDU_I,
frag_len + LLCP_SEQUENCE_SIZE);
- if (pdu == NULL)
+ if (pdu == NULL) {
+ kfree(msg_data);
return -ENOMEM;
+ }
skb_put(pdu, LLCP_SEQUENCE_SIZE);
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 1349074e1ffc..6184bd1fba3a 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -943,7 +943,6 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
new_sock->local = nfc_llcp_local_get(local);
new_sock->rw = sock->rw;
new_sock->miux = sock->miux;
- new_sock->remote_miu = local->remote_miu;
new_sock->nfc_protocol = sock->nfc_protocol;
new_sock->dsap = ssap;
new_sock->target_idx = local->target_idx;
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 69fbc8dadba7..4a53bb58a463 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -700,7 +700,6 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
llcp_sock->dev = dev;
llcp_sock->local = nfc_llcp_local_get(local);
- llcp_sock->remote_miu = llcp_sock->local->remote_miu;
llcp_sock->ssap = nfc_llcp_get_local_ssap(local);
if (llcp_sock->ssap == LLCP_SAP_MAX) {
ret = -ENOMEM;
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index f0e955e3a385..46bda010bf11 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -301,6 +301,9 @@ static int nci_open_device(struct nci_dev *ndev)
rc = __nci_request(ndev, nci_reset_req, 0,
msecs_to_jiffies(NCI_RESET_TIMEOUT));
+ if (ndev->ops->setup(ndev))
+ ndev->ops->setup(ndev);
+
if (!rc) {
rc = __nci_request(ndev, nci_init_req, 0,
msecs_to_jiffies(NCI_INIT_TIMEOUT));
@@ -361,6 +364,8 @@ static int nci_close_device(struct nci_dev *ndev)
msecs_to_jiffies(NCI_RESET_TIMEOUT));
clear_bit(NCI_INIT, &ndev->flags);
+ del_timer_sync(&ndev->cmd_timer);
+
/* Flush cmd wq */
flush_workqueue(ndev->cmd_wq);
@@ -408,12 +413,26 @@ static int nci_dev_down(struct nfc_dev *nfc_dev)
return nci_close_device(ndev);
}
+int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val)
+{
+ struct nci_set_config_param param;
+
+ if (!val || !len)
+ return 0;
+
+ param.id = id;
+ param.len = len;
+ param.val = val;
+
+ return __nci_request(ndev, nci_set_config_req, (unsigned long)&param,
+ msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));
+}
+EXPORT_SYMBOL(nci_set_config);
+
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;
param.val = nfc_get_local_general_bytes(nfc_dev, &param.len);
if ((param.val == NULL) || (param.len == 0))
@@ -422,11 +441,7 @@ static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
if (param.len > NFC_MAX_GT_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;
return nci_request(ndev, nci_set_config_req, (unsigned long)&param,
msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT));

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