diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-20 21:04:47 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-20 21:04:47 -0700 |
commit | 3b59bf081622b6446db77ad06c93fe23677bc533 (patch) | |
tree | 3f4bb5a27c90cc86994a1f6d3c53fbf9208003cb /net/nfc/nci | |
parent | e45836fafe157df137a837093037f741ad8f4c90 (diff) | |
parent | bbdb32cb5b73597386913d052165423b9d736145 (diff) | |
download | kernel_goldelico_gta04-3b59bf081622b6446db77ad06c93fe23677bc533.zip kernel_goldelico_gta04-3b59bf081622b6446db77ad06c93fe23677bc533.tar.gz kernel_goldelico_gta04-3b59bf081622b6446db77ad06c93fe23677bc533.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking merge from David Miller:
"1) Move ixgbe driver over to purely page based buffering on receive.
From Alexander Duyck.
2) Add receive packet steering support to e1000e, from Bruce Allan.
3) Convert TCP MD5 support over to RCU, from Eric Dumazet.
4) Reduce cpu usage in handling out-of-order TCP packets on modern
systems, also from Eric Dumazet.
5) Support the IP{,V6}_UNICAST_IF socket options, making the wine
folks happy, from Erich Hoover.
6) Support VLAN trunking from guests in hyperv driver, from Haiyang
Zhang.
7) Support byte-queue-limtis in r8169, from Igor Maravic.
8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but
was never properly implemented, Jiri Benc fixed that.
9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang.
10) Support kernel side dump filtering by ctmark in netfilter
ctnetlink, from Pablo Neira Ayuso.
11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker.
12) Add new peek socket options to assist with socket migration, from
Pavel Emelyanov.
13) Add sch_plug packet scheduler whose queue is controlled by
userland daemons using explicit freeze and release commands. From
Shriram Rajagopalan.
14) Fix FCOE checksum offload handling on transmit, from Yi Zou."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits)
Fix pppol2tp getsockname()
Remove printk from rds_sendmsg
ipv6: fix incorrent ipv6 ipsec packet fragment
cpsw: Hook up default ndo_change_mtu.
net: qmi_wwan: fix build error due to cdc-wdm dependecy
netdev: driver: ethernet: Add TI CPSW driver
netdev: driver: ethernet: add cpsw address lookup engine support
phy: add am79c874 PHY support
mlx4_core: fix race on comm channel
bonding: send igmp report for its master
fs_enet: Add MPC5125 FEC support and PHY interface selection
net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
net: update the usage of CHECKSUM_UNNECESSARY
fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx
net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso
ixgbe: Fix issues with SR-IOV loopback when flow control is disabled
net/hyperv: Fix the code handling tx busy
ixgbe: fix namespace issues when FCoE/DCB is not enabled
rtlwifi: Remove unused ETH_ADDR_LEN defines
igbvf: Use ETH_ALEN
...
Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and
drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.
Diffstat (limited to 'net/nfc/nci')
-rw-r--r-- | net/nfc/nci/core.c | 209 | ||||
-rw-r--r-- | net/nfc/nci/data.c | 32 | ||||
-rw-r--r-- | net/nfc/nci/ntf.c | 360 | ||||
-rw-r--r-- | net/nfc/nci/rsp.c | 41 |
4 files changed, 496 insertions, 146 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 7650139..9ec065b 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -66,9 +66,8 @@ static void nci_req_cancel(struct nci_dev *ndev, int err) /* Execute request and wait for completion. */ static int __nci_request(struct nci_dev *ndev, - void (*req)(struct nci_dev *ndev, unsigned long opt), - unsigned long opt, - __u32 timeout) + void (*req)(struct nci_dev *ndev, unsigned long opt), + unsigned long opt, __u32 timeout) { int rc = 0; long completion_rc; @@ -77,9 +76,9 @@ static int __nci_request(struct nci_dev *ndev, init_completion(&ndev->req_completion); req(ndev, opt); - completion_rc = wait_for_completion_interruptible_timeout( - &ndev->req_completion, - timeout); + completion_rc = + wait_for_completion_interruptible_timeout(&ndev->req_completion, + timeout); pr_debug("wait_for_completion return %ld\n", completion_rc); @@ -110,8 +109,9 @@ static int __nci_request(struct nci_dev *ndev, } static inline int nci_request(struct nci_dev *ndev, - void (*req)(struct nci_dev *ndev, unsigned long opt), - unsigned long opt, __u32 timeout) + void (*req)(struct nci_dev *ndev, + unsigned long opt), + unsigned long opt, __u32 timeout) { int rc; @@ -152,14 +152,14 @@ static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt) /* by default mapping is set to NCI_RF_INTERFACE_FRAME */ for (i = 0; i < ndev->num_supported_rf_interfaces; i++) { if (ndev->supported_rf_interfaces[i] == - NCI_RF_INTERFACE_ISO_DEP) { + NCI_RF_INTERFACE_ISO_DEP) { cfg[*num].rf_protocol = NCI_RF_PROTOCOL_ISO_DEP; cfg[*num].mode = NCI_DISC_MAP_MODE_POLL | NCI_DISC_MAP_MODE_LISTEN; cfg[*num].rf_interface = NCI_RF_INTERFACE_ISO_DEP; (*num)++; } else if (ndev->supported_rf_interfaces[i] == - NCI_RF_INTERFACE_NFC_DEP) { + NCI_RF_INTERFACE_NFC_DEP) { cfg[*num].rf_protocol = NCI_RF_PROTOCOL_NFC_DEP; cfg[*num].mode = NCI_DISC_MAP_MODE_POLL | NCI_DISC_MAP_MODE_LISTEN; @@ -172,8 +172,7 @@ static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt) } nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_MAP_CMD, - (1 + ((*num)*sizeof(struct disc_map_config))), - &cmd); + (1 + ((*num) * sizeof(struct disc_map_config))), &cmd); } static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt) @@ -184,36 +183,68 @@ static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long 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)) { + (protocols & NFC_PROTO_JEWEL_MASK + || protocols & NFC_PROTO_MIFARE_MASK + || protocols & NFC_PROTO_ISO14443_MASK + || protocols & NFC_PROTO_NFC_DEP_MASK)) { cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = - NCI_NFC_A_PASSIVE_POLL_MODE; + NCI_NFC_A_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) && - (protocols & NFC_PROTO_ISO14443_MASK)) { + (protocols & NFC_PROTO_ISO14443_MASK)) { cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = - NCI_NFC_B_PASSIVE_POLL_MODE; + NCI_NFC_B_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) && - (protocols & NFC_PROTO_FELICA_MASK - || protocols & NFC_PROTO_NFC_DEP_MASK)) { + (protocols & NFC_PROTO_FELICA_MASK + || protocols & NFC_PROTO_NFC_DEP_MASK)) { cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = - NCI_NFC_F_PASSIVE_POLL_MODE; + NCI_NFC_F_PASSIVE_POLL_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); + (1 + (cmd.num_disc_configs * sizeof(struct disc_config))), + &cmd); +} + +struct nci_rf_discover_select_param { + __u8 rf_discovery_id; + __u8 rf_protocol; +}; + +static void nci_rf_discover_select_req(struct nci_dev *ndev, unsigned long opt) +{ + struct nci_rf_discover_select_param *param = + (struct nci_rf_discover_select_param *)opt; + struct nci_rf_discover_select_cmd cmd; + + cmd.rf_discovery_id = param->rf_discovery_id; + cmd.rf_protocol = param->rf_protocol; + + switch (cmd.rf_protocol) { + case NCI_RF_PROTOCOL_ISO_DEP: + cmd.rf_interface = NCI_RF_INTERFACE_ISO_DEP; + break; + + case NCI_RF_PROTOCOL_NFC_DEP: + cmd.rf_interface = NCI_RF_INTERFACE_NFC_DEP; + break; + + default: + cmd.rf_interface = NCI_RF_INTERFACE_FRAME; + break; + } + + nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_SELECT_CMD, + sizeof(struct nci_rf_discover_select_cmd), &cmd); } static void nci_rf_deactivate_req(struct nci_dev *ndev, unsigned long opt) @@ -223,8 +254,7 @@ static void nci_rf_deactivate_req(struct nci_dev *ndev, unsigned long opt) cmd.type = NCI_DEACTIVATE_TYPE_IDLE_MODE; nci_send_cmd(ndev, NCI_OP_RF_DEACTIVATE_CMD, - sizeof(struct nci_rf_deactivate_cmd), - &cmd); + sizeof(struct nci_rf_deactivate_cmd), &cmd); } static int nci_open_device(struct nci_dev *ndev) @@ -248,22 +278,24 @@ static int nci_open_device(struct nci_dev *ndev) set_bit(NCI_INIT, &ndev->flags); rc = __nci_request(ndev, nci_reset_req, 0, - msecs_to_jiffies(NCI_RESET_TIMEOUT)); + msecs_to_jiffies(NCI_RESET_TIMEOUT)); if (!rc) { rc = __nci_request(ndev, nci_init_req, 0, - msecs_to_jiffies(NCI_INIT_TIMEOUT)); + msecs_to_jiffies(NCI_INIT_TIMEOUT)); } if (!rc) { rc = __nci_request(ndev, nci_init_complete_req, 0, - msecs_to_jiffies(NCI_INIT_TIMEOUT)); + msecs_to_jiffies(NCI_INIT_TIMEOUT)); } clear_bit(NCI_INIT, &ndev->flags); if (!rc) { set_bit(NCI_UP, &ndev->flags); + nci_clear_target_list(ndev); + atomic_set(&ndev->state, NCI_IDLE); } else { /* Init failed, cleanup */ skb_queue_purge(&ndev->cmd_q); @@ -286,6 +318,7 @@ static int nci_close_device(struct nci_dev *ndev) if (!test_and_clear_bit(NCI_UP, &ndev->flags)) { del_timer_sync(&ndev->cmd_timer); + del_timer_sync(&ndev->data_timer); mutex_unlock(&ndev->req_lock); return 0; } @@ -304,7 +337,7 @@ static int nci_close_device(struct nci_dev *ndev) set_bit(NCI_INIT, &ndev->flags); __nci_request(ndev, nci_reset_req, 0, - msecs_to_jiffies(NCI_RESET_TIMEOUT)); + msecs_to_jiffies(NCI_RESET_TIMEOUT)); clear_bit(NCI_INIT, &ndev->flags); /* Flush cmd wq */ @@ -331,6 +364,15 @@ static void nci_cmd_timer(unsigned long arg) queue_work(ndev->cmd_wq, &ndev->cmd_work); } +/* NCI data exchange timer function */ +static void nci_data_timer(unsigned long arg) +{ + struct nci_dev *ndev = (void *) arg; + + set_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags); + queue_work(ndev->rx_wq, &ndev->rx_work); +} + static int nci_dev_up(struct nfc_dev *nfc_dev) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); @@ -350,7 +392,8 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols) struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); int rc; - if (test_bit(NCI_DISCOVERY, &ndev->flags)) { + if ((atomic_read(&ndev->state) == NCI_DISCOVERY) || + (atomic_read(&ndev->state) == NCI_W4_ALL_DISCOVERIES)) { pr_err("unable to start poll, since poll is already active\n"); return -EBUSY; } @@ -360,17 +403,18 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols) return -EBUSY; } - if (test_bit(NCI_POLL_ACTIVE, &ndev->flags)) { - pr_debug("target is active, implicitly deactivate...\n"); + if ((atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) || + (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, - msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); + msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); if (rc) return -EBUSY; } rc = nci_request(ndev, nci_rf_discover_req, protocols, - msecs_to_jiffies(NCI_RF_DISC_TIMEOUT)); + msecs_to_jiffies(NCI_RF_DISC_TIMEOUT)); if (!rc) ndev->poll_prots = protocols; @@ -382,23 +426,29 @@ static void nci_stop_poll(struct nfc_dev *nfc_dev) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); - if (!test_bit(NCI_DISCOVERY, &ndev->flags)) { + if ((atomic_read(&ndev->state) != NCI_DISCOVERY) && + (atomic_read(&ndev->state) != NCI_W4_ALL_DISCOVERIES)) { pr_err("unable to stop poll, since poll is not active\n"); return; } nci_request(ndev, nci_rf_deactivate_req, 0, - msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); + msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); } static int nci_activate_target(struct nfc_dev *nfc_dev, __u32 target_idx, - __u32 protocol) + __u32 protocol) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); + struct nci_rf_discover_select_param param; + struct nfc_target *target = NULL; + int i; + int rc = 0; pr_debug("target_idx %d, protocol 0x%x\n", target_idx, protocol); - if (!test_bit(NCI_POLL_ACTIVE, &ndev->flags)) { + if ((atomic_read(&ndev->state) != NCI_W4_HOST_SELECT) && + (atomic_read(&ndev->state) != NCI_POLL_ACTIVE)) { pr_err("there is no available target to activate\n"); return -EINVAL; } @@ -408,16 +458,47 @@ static int nci_activate_target(struct nfc_dev *nfc_dev, __u32 target_idx, return -EBUSY; } - if (!(ndev->target_available_prots & (1 << protocol))) { + for (i = 0; i < ndev->n_targets; i++) { + if (ndev->targets[i].idx == target_idx) { + target = &ndev->targets[i]; + break; + } + } + + if (!target) { + pr_err("unable to find the selected target\n"); + return -EINVAL; + } + + if (!(target->supported_protocols & (1 << protocol))) { pr_err("target does not support the requested protocol 0x%x\n", protocol); return -EINVAL; } - ndev->target_active_prot = protocol; - ndev->target_available_prots = 0; + if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) { + param.rf_discovery_id = target->idx; - return 0; + if (protocol == NFC_PROTO_JEWEL) + param.rf_protocol = NCI_RF_PROTOCOL_T1T; + else if (protocol == NFC_PROTO_MIFARE) + param.rf_protocol = NCI_RF_PROTOCOL_T2T; + else if (protocol == NFC_PROTO_FELICA) + param.rf_protocol = NCI_RF_PROTOCOL_T3T; + else if (protocol == NFC_PROTO_ISO14443) + param.rf_protocol = NCI_RF_PROTOCOL_ISO_DEP; + else + param.rf_protocol = NCI_RF_PROTOCOL_NFC_DEP; + + rc = nci_request(ndev, nci_rf_discover_select_req, + (unsigned long)¶m, + msecs_to_jiffies(NCI_RF_DISC_SELECT_TIMEOUT)); + } + + if (!rc) + ndev->target_active_prot = protocol; + + return rc; } static void nci_deactivate_target(struct nfc_dev *nfc_dev, __u32 target_idx) @@ -433,16 +514,15 @@ static void nci_deactivate_target(struct nfc_dev *nfc_dev, __u32 target_idx) ndev->target_active_prot = 0; - if (test_bit(NCI_POLL_ACTIVE, &ndev->flags)) { + if (atomic_read(&ndev->state) == NCI_POLL_ACTIVE) { nci_request(ndev, nci_rf_deactivate_req, 0, - msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); + msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); } } static int nci_data_exchange(struct nfc_dev *nfc_dev, __u32 target_idx, - struct sk_buff *skb, - data_exchange_cb_t cb, - void *cb_context) + struct sk_buff *skb, + data_exchange_cb_t cb, void *cb_context) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); int rc; @@ -487,9 +567,8 @@ static struct nfc_ops nci_nfc_ops = { * @supported_protocols: NFC protocols supported by the device */ struct nci_dev *nci_allocate_device(struct nci_ops *ops, - __u32 supported_protocols, - int tx_headroom, - int tx_tailroom) + __u32 supported_protocols, + int tx_headroom, int tx_tailroom) { struct nci_dev *ndev; @@ -510,9 +589,9 @@ struct nci_dev *nci_allocate_device(struct nci_ops *ops, ndev->tx_tailroom = tx_tailroom; ndev->nfc_dev = nfc_allocate_device(&nci_nfc_ops, - supported_protocols, - tx_headroom + NCI_DATA_HDR_SIZE, - tx_tailroom); + supported_protocols, + tx_headroom + NCI_DATA_HDR_SIZE, + tx_tailroom); if (!ndev->nfc_dev) goto free_exit; @@ -584,7 +663,9 @@ int nci_register_device(struct nci_dev *ndev) skb_queue_head_init(&ndev->tx_q); setup_timer(&ndev->cmd_timer, nci_cmd_timer, - (unsigned long) ndev); + (unsigned long) ndev); + setup_timer(&ndev->data_timer, nci_data_timer, + (unsigned long) ndev); mutex_init(&ndev->req_lock); @@ -633,7 +714,7 @@ int nci_recv_frame(struct sk_buff *skb) pr_debug("len %d\n", skb->len); if (!ndev || (!test_bit(NCI_UP, &ndev->flags) - && !test_bit(NCI_INIT, &ndev->flags))) { + && !test_bit(NCI_INIT, &ndev->flags))) { kfree_skb(skb); return -ENXIO; } @@ -713,7 +794,7 @@ static void nci_tx_work(struct work_struct *work) /* Check if data flow control is used */ if (atomic_read(&ndev->credits_cnt) != - NCI_DATA_FLOW_CONTROL_NOT_USED) + NCI_DATA_FLOW_CONTROL_NOT_USED) atomic_dec(&ndev->credits_cnt); pr_debug("NCI TX: MT=data, PBF=%d, conn_id=%d, plen=%d\n", @@ -722,6 +803,9 @@ static void nci_tx_work(struct work_struct *work) nci_plen(skb->data)); nci_send_frame(skb); + + mod_timer(&ndev->data_timer, + jiffies + msecs_to_jiffies(NCI_DATA_TIMEOUT)); } } @@ -753,6 +837,15 @@ static void nci_rx_work(struct work_struct *work) break; } } + + /* check if a data exchange timout has occurred */ + if (test_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags)) { + /* complete the data exchange transaction, if exists */ + if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) + nci_data_exchange_complete(ndev, NULL, -ETIMEDOUT); + + clear_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags); + } } /* ----- NCI TX CMD worker thread ----- */ @@ -781,6 +874,6 @@ static void nci_cmd_work(struct work_struct *work) nci_send_frame(skb); mod_timer(&ndev->cmd_timer, - jiffies + msecs_to_jiffies(NCI_CMD_TIMEOUT)); + jiffies + msecs_to_jiffies(NCI_CMD_TIMEOUT)); } } diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c index e5756b3..a0bc326 100644 --- a/net/nfc/nci/data.c +++ b/net/nfc/nci/data.c @@ -35,8 +35,7 @@ #include <linux/nfc.h> /* Complete data exchange transaction and forward skb to nfc core */ -void nci_data_exchange_complete(struct nci_dev *ndev, - struct sk_buff *skb, +void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb, int err) { data_exchange_cb_t cb = ndev->data_exchange_cb; @@ -44,6 +43,10 @@ void nci_data_exchange_complete(struct nci_dev *ndev, pr_debug("len %d, err %d\n", skb ? skb->len : 0, err); + /* data exchange is complete, stop the data timer */ + del_timer_sync(&ndev->data_timer); + clear_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags); + if (cb) { ndev->data_exchange_cb = NULL; ndev->data_exchange_cb_context = 0; @@ -63,9 +66,9 @@ void nci_data_exchange_complete(struct nci_dev *ndev, /* ----------------- NCI TX Data ----------------- */ static inline void nci_push_data_hdr(struct nci_dev *ndev, - __u8 conn_id, - struct sk_buff *skb, - __u8 pbf) + __u8 conn_id, + struct sk_buff *skb, + __u8 pbf) { struct nci_data_hdr *hdr; int plen = skb->len; @@ -82,8 +85,8 @@ static inline void nci_push_data_hdr(struct nci_dev *ndev, } static int nci_queue_tx_data_frags(struct nci_dev *ndev, - __u8 conn_id, - struct sk_buff *skb) { + __u8 conn_id, + struct sk_buff *skb) { int total_len = skb->len; unsigned char *data = skb->data; unsigned long flags; @@ -101,8 +104,8 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev, min_t(int, total_len, ndev->max_data_pkt_payload_size); skb_frag = nci_skb_alloc(ndev, - (NCI_DATA_HDR_SIZE + frag_len), - GFP_KERNEL); + (NCI_DATA_HDR_SIZE + frag_len), + GFP_KERNEL); if (skb_frag == NULL) { rc = -ENOMEM; goto free_exit; @@ -114,7 +117,8 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev, /* second, set the header */ nci_push_data_hdr(ndev, conn_id, skb_frag, - ((total_len == frag_len) ? (NCI_PBF_LAST) : (NCI_PBF_CONT))); + ((total_len == frag_len) ? + (NCI_PBF_LAST) : (NCI_PBF_CONT))); __skb_queue_tail(&frags_q, skb_frag); @@ -182,8 +186,8 @@ exit: /* ----------------- NCI RX Data ----------------- */ static void nci_add_rx_data_frag(struct nci_dev *ndev, - struct sk_buff *skb, - __u8 pbf) + struct sk_buff *skb, + __u8 pbf) { int reassembly_len; int err = 0; @@ -207,8 +211,8 @@ static void nci_add_rx_data_frag(struct nci_dev *ndev, /* second, combine the two fragments */ memcpy(skb_push(skb, reassembly_len), - ndev->rx_data_reassembly->data, - reassembly_len); + ndev->rx_data_reassembly->data, + reassembly_len); /* third, free old reassembly */ kfree_skb(ndev->rx_data_reassembly); diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c index b16a8dc..2e3dee4 100644 --- a/net/nfc/nci/ntf.c +++ b/net/nfc/nci/ntf.c @@ -40,7 +40,7 @@ /* Handle NCI Notification packets */ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, - struct sk_buff *skb) + struct sk_buff *skb) { struct nci_core_conn_credit_ntf *ntf = (void *) skb->data; int i; @@ -62,7 +62,7 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, if (ntf->conn_entries[i].conn_id == NCI_STATIC_RF_CONN_ID) { /* found static rf connection */ atomic_add(ntf->conn_entries[i].credits, - &ndev->credits_cnt); + &ndev->credits_cnt); } } @@ -71,6 +71,20 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, queue_work(ndev->tx_wq, &ndev->tx_work); } +static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev, + struct sk_buff *skb) +{ + __u8 status = skb->data[0]; + + pr_debug("status 0x%x\n", status); + + if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) { + /* Activation failed, so complete the request + (the state remains the same) */ + nci_req_complete(ndev, status); + } +} + static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) { @@ -86,12 +100,9 @@ static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, } static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev, - struct nci_rf_intf_activated_ntf *ntf, __u8 *data) + struct rf_tech_specific_params_nfca_poll *nfca_poll, + __u8 *data) { - struct rf_tech_specific_params_nfca_poll *nfca_poll; - - nfca_poll = &ntf->rf_tech_specific_params.nfca_poll; - nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data)); data += 2; @@ -115,79 +126,266 @@ static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev, return data; } +static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev, + struct rf_tech_specific_params_nfcb_poll *nfcb_poll, + __u8 *data) +{ + nfcb_poll->sensb_res_len = *data++; + + pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len); + + memcpy(nfcb_poll->sensb_res, data, nfcb_poll->sensb_res_len); + data += nfcb_poll->sensb_res_len; + + return data; +} + +static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev, + struct rf_tech_specific_params_nfcf_poll *nfcf_poll, + __u8 *data) +{ + nfcf_poll->bit_rate = *data++; + nfcf_poll->sensf_res_len = *data++; + + pr_debug("bit_rate %d, sensf_res_len %d\n", + nfcf_poll->bit_rate, nfcf_poll->sensf_res_len); + + memcpy(nfcf_poll->sensf_res, data, nfcf_poll->sensf_res_len); + data += nfcf_poll->sensf_res_len; + + return data; +} + +static int nci_add_new_protocol(struct nci_dev *ndev, + struct nfc_target *target, + __u8 rf_protocol, + __u8 rf_tech_and_mode, + void *params) +{ + struct rf_tech_specific_params_nfca_poll *nfca_poll; + struct rf_tech_specific_params_nfcb_poll *nfcb_poll; + struct rf_tech_specific_params_nfcf_poll *nfcf_poll; + __u32 protocol; + + if (rf_protocol == NCI_RF_PROTOCOL_T2T) + protocol = NFC_PROTO_MIFARE_MASK; + else if (rf_protocol == NCI_RF_PROTOCOL_ISO_DEP) + protocol = NFC_PROTO_ISO14443_MASK; + else if (rf_protocol == NCI_RF_PROTOCOL_T3T) + protocol = NFC_PROTO_FELICA_MASK; + else + protocol = 0; + + if (!(protocol & ndev->poll_prots)) { + pr_err("the target found does not have the desired protocol\n"); + return -EPROTO; + } + + if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) { + nfca_poll = (struct rf_tech_specific_params_nfca_poll *)params; + + target->sens_res = nfca_poll->sens_res; + target->sel_res = nfca_poll->sel_res; + target->nfcid1_len = nfca_poll->nfcid1_len; + if (target->nfcid1_len > 0) { + memcpy(target->nfcid1, nfca_poll->nfcid1, + target->nfcid1_len); + } + } else if (rf_tech_and_mode == NCI_NFC_B_PASSIVE_POLL_MODE) { + nfcb_poll = (struct rf_tech_specific_params_nfcb_poll *)params; + + target->sensb_res_len = nfcb_poll->sensb_res_len; + if (target->sensb_res_len > 0) { + memcpy(target->sensb_res, nfcb_poll->sensb_res, + target->sensb_res_len); + } + } else if (rf_tech_and_mode == NCI_NFC_F_PASSIVE_POLL_MODE) { + nfcf_poll = (struct rf_tech_specific_params_nfcf_poll *)params; + + target->sensf_res_len = nfcf_poll->sensf_res_len; + if (target->sensf_res_len > 0) { + memcpy(target->sensf_res, nfcf_poll->sensf_res, + target->sensf_res_len); + } + } else { + pr_err("unsupported rf_tech_and_mode 0x%x\n", rf_tech_and_mode); + 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) { struct activation_params_nfca_poll_iso_dep *nfca_poll; + struct activation_params_nfcb_poll_iso_dep *nfcb_poll; switch (ntf->activation_rf_tech_and_mode) { case NCI_NFC_A_PASSIVE_POLL_MODE: nfca_poll = &ntf->activation_params.nfca_poll_iso_dep; nfca_poll->rats_res_len = *data++; + pr_debug("rats_res_len %d\n", nfca_poll->rats_res_len); if (nfca_poll->rats_res_len > 0) { memcpy(nfca_poll->rats_res, - data, - nfca_poll->rats_res_len); + data, nfca_poll->rats_res_len); + } + break; + + case NCI_NFC_B_PASSIVE_POLL_MODE: + nfcb_poll = &ntf->activation_params.nfcb_poll_iso_dep; + nfcb_poll->attrib_res_len = *data++; + pr_debug("attrib_res_len %d\n", nfcb_poll->attrib_res_len); + if (nfcb_poll->attrib_res_len > 0) { + memcpy(nfcb_poll->attrib_res, + data, nfcb_poll->attrib_res_len); } break; 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; - if (ntf->rf_protocol == NCI_RF_PROTOCOL_T2T) /* T2T MifareUL */ - nfc_tgt.supported_protocols = NFC_PROTO_MIFARE_MASK; - else if (ntf->rf_protocol == NCI_RF_PROTOCOL_ISO_DEP) /* 4A */ - nfc_tgt.supported_protocols = NFC_PROTO_ISO14443_MASK; - else - nfc_tgt.supported_protocols = 0; - - 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); - } + target = &ndev->targets[ndev->n_targets]; - 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++; - 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; + pr_debug("target_idx %d, n_targets %d\n", target->idx, ndev->n_targets); - /* 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, - struct sk_buff *skb) + struct sk_buff *skb) { struct nci_rf_intf_activated_ntf ntf; __u8 *data = skb->data; - int err = 0; - - clear_bit(NCI_DISCOVERY, &ndev->flags); - set_bit(NCI_POLL_ACTIVE, &ndev->flags); + int err = NCI_STATUS_OK; ntf.rf_discovery_id = *data++; ntf.rf_interface = *data++; @@ -204,7 +402,8 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, ntf.activation_rf_tech_and_mode); pr_debug("max_data_pkt_payload_size 0x%x\n", ntf.max_data_pkt_payload_size); - pr_debug("initial_num_credits 0x%x\n", ntf.initial_num_credits); + pr_debug("initial_num_credits 0x%x\n", + ntf.initial_num_credits); pr_debug("rf_tech_specific_params_len %d\n", ntf.rf_tech_specific_params_len); @@ -212,13 +411,24 @@ 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.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 activation_rf_tech_and_mode 0x%x\n", ntf.activation_rf_tech_and_mode); - return; + err = NCI_STATUS_RF_PROTOCOL_ERROR; + goto exit; } } @@ -229,18 +439,15 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, pr_debug("data_exch_rf_tech_and_mode 0x%x\n", ntf.data_exch_rf_tech_and_mode); - pr_debug("data_exch_tx_bit_rate 0x%x\n", - ntf.data_exch_tx_bit_rate); - pr_debug("data_exch_rx_bit_rate 0x%x\n", - ntf.data_exch_rx_bit_rate); - pr_debug("activation_params_len %d\n", - ntf.activation_params_len); + pr_debug("data_exch_tx_bit_rate 0x%x\n", ntf.data_exch_tx_bit_rate); + pr_debug("data_exch_rx_bit_rate 0x%x\n", ntf.data_exch_rx_bit_rate); + pr_debug("activation_params_len %d\n", ntf.activation_params_len); if (ntf.activation_params_len > 0) { switch (ntf.rf_interface) { case NCI_RF_INTERFACE_ISO_DEP: err = nci_extract_activation_params_iso_dep(ndev, - &ntf, data); + &ntf, data); break; case NCI_RF_INTERFACE_FRAME: @@ -250,24 +457,39 @@ 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, - struct sk_buff *skb) + struct sk_buff *skb) { struct nci_rf_deactivate_ntf *ntf = (void *) skb->data; pr_debug("entry, type 0x%x, reason 0x%x\n", ntf->type, ntf->reason); - clear_bit(NCI_POLL_ACTIVE, &ndev->flags); - ndev->target_active_prot = 0; - /* drop tx data queue */ skb_queue_purge(&ndev->tx_q); @@ -280,6 +502,10 @@ static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, /* complete the data exchange transaction, if exists */ 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); } void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) @@ -300,10 +526,18 @@ 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; diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c index 2840ae2..3003c33 100644 --- a/net/nfc/nci/rsp.c +++ b/net/nfc/nci/rsp.c @@ -67,19 +67,18 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb) ndev->num_supported_rf_interfaces = rsp_1->num_supported_rf_interfaces; if (ndev->num_supported_rf_interfaces > - NCI_MAX_SUPPORTED_RF_INTERFACES) { + NCI_MAX_SUPPORTED_RF_INTERFACES) { ndev->num_supported_rf_interfaces = NCI_MAX_SUPPORTED_RF_INTERFACES; } memcpy(ndev->supported_rf_interfaces, - rsp_1->supported_rf_interfaces, - ndev->num_supported_rf_interfaces); + rsp_1->supported_rf_interfaces, + ndev->num_supported_rf_interfaces); rsp_2 = (void *) (skb->data + 6 + rsp_1->num_supported_rf_interfaces); - ndev->max_logical_connections = - rsp_2->max_logical_connections; + ndev->max_logical_connections = rsp_2->max_logical_connections; ndev->max_routing_table_size = __le16_to_cpu(rsp_2->max_routing_table_size); ndev->max_ctrl_pkt_payload_len = @@ -121,7 +120,7 @@ exit: } static void nci_rf_disc_map_rsp_packet(struct nci_dev *ndev, - struct sk_buff *skb) + struct sk_buff *skb) { __u8 status = skb->data[0]; @@ -137,21 +136,37 @@ static void nci_rf_disc_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb) pr_debug("status 0x%x\n", status); if (status == NCI_STATUS_OK) - set_bit(NCI_DISCOVERY, &ndev->flags); + atomic_set(&ndev->state, NCI_DISCOVERY); nci_req_complete(ndev, status); } -static void nci_rf_deactivate_rsp_packet(struct nci_dev *ndev, - struct sk_buff *skb) +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); - clear_bit(NCI_DISCOVERY, &ndev->flags); + /* Complete the request on intf_activated_ntf or generic_error_ntf */ + if (status != NCI_STATUS_OK) + nci_req_complete(ndev, status); +} - nci_req_complete(ndev, status); +static void nci_rf_deactivate_rsp_packet(struct nci_dev *ndev, + struct sk_buff *skb) +{ + __u8 status = skb->data[0]; + + pr_debug("status 0x%x\n", status); + + /* 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); + } } void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb) @@ -187,6 +202,10 @@ 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; |