diff options
| author | David S. Miller <davem@davemloft.net> | 2013-11-05 02:34:57 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-05 02:34:57 -0500 |
| commit | cfce0a2b61d0658d40bc2af2dca28a817804e17a (patch) | |
| tree | 9dae9fbd6d072fc2ee0995ffe60516dcbf29fb77 /drivers/nfc/pn533.c | |
| parent | ba275241030cfe87b87d6592345c7e7ebd9b6fba (diff) | |
| parent | 87bc0728d462ae37841a550542829aa65a97e7c2 (diff) | |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:
====================
Please accept the following pull request intended for the 3.13 tree...
I had intended to pass most of these to you as much as two weeks ago.
Unfortunately, I failed to account for the effects of bad Internet
connections and my own fatique/laziness while traveling. On the bright
side, at least these have been baking in linux-next for some time!
For the mac80211 bits, Johannes says:
"This time I have two fixes for P2P (which requires not using CCK rates)
and a workaround for APs with broken WMM information."
For the iwlwifi bits, Johannes says:
"I have a few fixes for warnings/issues: one from Alex, fixing scan
timings, one from Emmanuel fixing a WARN_ON in the DVM driver, one from
Stanislaw removing a trigger-happy WARN_ON in the MVM driver and a
change from myself to try to recover when the device isn't processing
commands quickly."
And:
"For this round, I have a lot of changes:
* power management improvements
* BT coexistence improvements/updates
* new device support
* VHT support
* IBSS support (though due to a small bug it requires new firmware)
* various other fixes/improvements."
For the Bluetooth bits, Gustavo says:
"More patches for 3.12, busy times for Bluetooth. More than a 100 commits since
the last pull. The bulk of work comes from Johan and Marcel, they are doing
fixes and improvements all over the Bluetooth subsystem, as the diffstat can
show."
For the ath10k and ath6kl bits, Kalle says:
"Bartosz added support to ath10k for our 10.x AP firmware branch, which
gives us AP specific features and fixes. We still support the main
firmware branch as well just like before, ath10k detects runtime what
firmware is used. Unfortunately the firmware interface in 10.x branch is
somewhat different so there was quite a lot of changes in ath10k for
this.
Michal and Sujith did some performance improvements in ath10k. Vladimir
fixed a compiler warning and Fengguang removed an extra semicolon."
For the NFC bits, Samuel says:
"It's a fairly big one, with the following highlights:
- NFC digital layer implementation: Most NFC chipsets implement the NFC
digital layer in firmware, but others have more basic functionalities
and expect the host to implement the digital layer. This layer sits
below the NFC core.
- Sony's port100 support: This is "soft" NFC USB dongle that expects the
digital layer to be implemented on the host. This is the first user of
our NFC digital stack implementation.
- Secure element API: We now provide a netlink API for enabling,
disabling and discovering NFC attached (embedded or UICC ones) secure
elements. With some userspace help, this allows us to support NFC
payments.
Only the pn544 driver currently supports that API.
- NCI SPI fixes and improvements: In order to support NCI devices over
SPI, we fixed and improved our NCI/SPI implementation. The currently
most deployed NFC NCI chipset, Broadcom's bcm2079x, supports that mode
and we're planning to use our NCI/SPI framework to implement a
driver for it.
- pn533 fragmentation support in target mode: This was the only missing
feature from our pn533 impementation. We now support fragmentation in
both Tx and Rx modes, in target mode."
On top of all that, brcmfmac and rt2x00 both get the usual flurry
of updates. A few other drivers get hit here or there as well.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc/pn533.c')
| -rw-r--r-- | drivers/nfc/pn533.c | 604 |
1 files changed, 418 insertions, 186 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 5df730be88a3..2daf04c07338 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -150,6 +150,7 @@ MODULE_DEVICE_TABLE(usb, pn533_table); #define PN533_CMD_TG_INIT_AS_TARGET 0x8c #define PN533_CMD_TG_GET_DATA 0x86 #define PN533_CMD_TG_SET_DATA 0x8e +#define PN533_CMD_TG_SET_META_DATA 0x94 #define PN533_CMD_UNDEF 0xff #define PN533_CMD_RESPONSE(cmd) (cmd + 1) @@ -373,6 +374,8 @@ struct pn533 { struct delayed_work poll_work; struct work_struct mi_rx_work; struct work_struct mi_tx_work; + struct work_struct mi_tm_rx_work; + struct work_struct mi_tm_tx_work; struct work_struct tg_work; struct work_struct rf_work; @@ -387,6 +390,7 @@ struct pn533 { struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1]; u8 poll_mod_count; u8 poll_mod_curr; + u8 poll_dep; u32 poll_protocols; u32 listen_protocols; struct timer_list listen_timer; @@ -722,32 +726,32 @@ static void pn533_recv_response(struct urb *urb) break; /* success */ case -ECONNRESET: case -ENOENT: - nfc_dev_dbg(&dev->interface->dev, - "The urb has been canceled (status %d)", - urb->status); + dev_dbg(&dev->interface->dev, + "The urb has been canceled (status %d)\n", + urb->status); goto sched_wq; case -ESHUTDOWN: default: - nfc_dev_err(&dev->interface->dev, - "Urb failure (status %d)", urb->status); + nfc_err(&dev->interface->dev, + "Urb failure (status %d)\n", urb->status); goto sched_wq; } in_frame = dev->in_urb->transfer_buffer; - nfc_dev_dbg(&dev->interface->dev, "Received a frame."); + dev_dbg(&dev->interface->dev, "Received a frame\n"); print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, dev->ops->rx_frame_size(in_frame), false); if (!dev->ops->rx_is_frame_valid(in_frame, dev)) { - nfc_dev_err(&dev->interface->dev, "Received an invalid frame"); + nfc_err(&dev->interface->dev, "Received an invalid frame\n"); cmd->status = -EIO; goto sched_wq; } if (!pn533_rx_frame_is_cmd_response(dev, in_frame)) { - nfc_dev_err(&dev->interface->dev, - "It it not the response to the last command"); + nfc_err(&dev->interface->dev, + "It it not the response to the last command\n"); cmd->status = -EIO; goto sched_wq; } @@ -777,29 +781,29 @@ static void pn533_recv_ack(struct urb *urb) break; /* success */ case -ECONNRESET: case -ENOENT: - nfc_dev_dbg(&dev->interface->dev, - "The urb has been stopped (status %d)", - urb->status); + dev_dbg(&dev->interface->dev, + "The urb has been stopped (status %d)\n", + urb->status); goto sched_wq; case -ESHUTDOWN: default: - nfc_dev_err(&dev->interface->dev, - "Urb failure (status %d)", urb->status); + nfc_err(&dev->interface->dev, + "Urb failure (status %d)\n", urb->status); goto sched_wq; } in_frame = dev->in_urb->transfer_buffer; if (!pn533_std_rx_frame_is_ack(in_frame)) { - nfc_dev_err(&dev->interface->dev, "Received an invalid ack"); + nfc_err(&dev->interface->dev, "Received an invalid ack\n"); cmd->status = -EIO; goto sched_wq; } rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC); if (rc) { - nfc_dev_err(&dev->interface->dev, - "usb_submit_urb failed with result %d", rc); + nfc_err(&dev->interface->dev, + "usb_submit_urb failed with result %d\n", rc); cmd->status = rc; goto sched_wq; } @@ -823,8 +827,6 @@ static int pn533_send_ack(struct pn533 *dev, gfp_t flags) /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */ int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); - dev->out_urb->transfer_buffer = ack; dev->out_urb->transfer_buffer_length = sizeof(ack); rc = usb_submit_urb(dev->out_urb, flags); @@ -927,7 +929,7 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code, struct pn533_cmd *cmd; int rc = 0; - nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x", cmd_code); + dev_dbg(&dev->interface->dev, "Sending command 0x%x\n", cmd_code); cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (!cmd) @@ -954,8 +956,8 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code, goto unlock; } - nfc_dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x", __func__, - cmd_code); + dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x\n", + __func__, cmd_code); INIT_LIST_HEAD(&cmd->queue); list_add_tail(&cmd->queue, &dev->cmd_queue); @@ -1168,14 +1170,14 @@ static void pn533_send_complete(struct urb *urb) break; /* success */ case -ECONNRESET: case -ENOENT: - nfc_dev_dbg(&dev->interface->dev, - "The urb has been stopped (status %d)", - urb->status); + dev_dbg(&dev->interface->dev, + "The urb has been stopped (status %d)\n", + urb->status); break; case -ESHUTDOWN: default: - nfc_dev_err(&dev->interface->dev, - "Urb failure (status %d)", urb->status); + nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", + urb->status); } } @@ -1452,8 +1454,8 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata, struct nfc_target nfc_tgt; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__, - dev->poll_mod_curr); + dev_dbg(&dev->interface->dev, "%s: modulation=%d\n", + __func__, dev->poll_mod_curr); if (tg != 1) return -EPROTO; @@ -1475,8 +1477,8 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata, rc = pn533_target_found_type_b(&nfc_tgt, tgdata, tgdata_len); break; default: - nfc_dev_err(&dev->interface->dev, - "Unknown current poll modulation"); + nfc_err(&dev->interface->dev, + "Unknown current poll modulation\n"); return -EPROTO; } @@ -1484,14 +1486,14 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata, return rc; if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) { - nfc_dev_dbg(&dev->interface->dev, - "The Tg found doesn't have the desired protocol"); + dev_dbg(&dev->interface->dev, + "The Tg found doesn't have the desired protocol\n"); return -EAGAIN; } - nfc_dev_dbg(&dev->interface->dev, - "Target found - supported protocols: 0x%x", - nfc_tgt.supported_protocols); + dev_dbg(&dev->interface->dev, + "Target found - supported protocols: 0x%x\n", + nfc_tgt.supported_protocols); dev->tgt_available_prots = nfc_tgt.supported_protocols; @@ -1548,7 +1550,8 @@ static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp) u8 nbtg, tg, *tgdata; int rc, tgdata_len; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + /* Toggle the DEP polling */ + dev->poll_dep = 1; nbtg = resp->data[0]; tg = resp->data[1]; @@ -1624,37 +1627,130 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev) #define PN533_CMD_DATAEXCH_HEAD_LEN 1 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262 +static void pn533_wq_tm_mi_recv(struct work_struct *work); +static struct sk_buff *pn533_build_response(struct pn533 *dev); + static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg, struct sk_buff *resp) { - u8 status; + struct sk_buff *skb; + u8 status, ret, mi; + int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); - if (IS_ERR(resp)) + if (IS_ERR(resp)) { + skb_queue_purge(&dev->resp_q); return PTR_ERR(resp); + } status = resp->data[0]; + + ret = status & PN533_CMD_RET_MASK; + mi = status & PN533_CMD_MI_MASK; + skb_pull(resp, sizeof(status)); - if (status != 0) { - nfc_tm_deactivated(dev->nfc_dev); - dev->tgt_mode = 0; - dev_kfree_skb(resp); - return 0; + if (ret != PN533_CMD_RET_SUCCESS) { + rc = -EIO; + goto error; } - return nfc_tm_data_received(dev->nfc_dev, resp); + skb_queue_tail(&dev->resp_q, resp); + + if (mi) { + queue_work(dev->wq, &dev->mi_tm_rx_work); + return -EINPROGRESS; + } + + skb = pn533_build_response(dev); + if (!skb) { + rc = -EIO; + goto error; + } + + return nfc_tm_data_received(dev->nfc_dev, skb); + +error: + nfc_tm_deactivated(dev->nfc_dev); + dev->tgt_mode = 0; + skb_queue_purge(&dev->resp_q); + dev_kfree_skb(resp); + + return rc; +} + +static void pn533_wq_tm_mi_recv(struct work_struct *work) +{ + struct pn533 *dev = container_of(work, struct pn533, mi_tm_rx_work); + struct sk_buff *skb; + int rc; + + dev_dbg(&dev->interface->dev, "%s\n", __func__); + + skb = pn533_alloc_skb(dev, 0); + if (!skb) + return; + + rc = pn533_send_cmd_direct_async(dev, + PN533_CMD_TG_GET_DATA, + skb, + pn533_tm_get_data_complete, + NULL); + + if (rc < 0) + dev_kfree_skb(skb); + + return; +} + +static int pn533_tm_send_complete(struct pn533 *dev, void *arg, + struct sk_buff *resp); +static void pn533_wq_tm_mi_send(struct work_struct *work) +{ + struct pn533 *dev = container_of(work, struct pn533, mi_tm_tx_work); + struct sk_buff *skb; + int rc; + + dev_dbg(&dev->interface->dev, "%s\n", __func__); + + /* Grab the first skb in the queue */ + skb = skb_dequeue(&dev->fragment_skb); + if (skb == NULL) { /* No more data */ + /* Reset the queue for future use */ + skb_queue_head_init(&dev->fragment_skb); + goto error; + } + + /* last entry - remove MI bit */ + if (skb_queue_len(&dev->fragment_skb) == 0) { + rc = pn533_send_cmd_direct_async(dev, PN533_CMD_TG_SET_DATA, + skb, pn533_tm_send_complete, NULL); + } else + rc = pn533_send_cmd_direct_async(dev, + PN533_CMD_TG_SET_META_DATA, + skb, pn533_tm_send_complete, NULL); + + if (rc == 0) /* success */ + return; + + dev_err(&dev->interface->dev, + "Error %d when trying to perform set meta data_exchange", rc); + + dev_kfree_skb(skb); + +error: + pn533_send_ack(dev, GFP_KERNEL); + queue_work(dev->wq, &dev->cmd_work); } static void pn533_wq_tg_get_data(struct work_struct *work) { struct pn533 *dev = container_of(work, struct pn533, tg_work); - struct sk_buff *skb; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb = pn533_alloc_skb(dev, 0); if (!skb) @@ -1676,7 +1772,7 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp) size_t gb_len; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (resp->len < ATR_REQ_GB_OFFSET + 1) return -EINVAL; @@ -1684,8 +1780,8 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp) mode = resp->data[0]; cmd = &resp->data[1]; - nfc_dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n", - mode, resp->len); + dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n", + mode, resp->len); if ((mode & PN533_INIT_TARGET_RESP_FRAME_MASK) == PN533_INIT_TARGET_RESP_ACTIVE) @@ -1700,8 +1796,8 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp) rc = nfc_tm_activated(dev->nfc_dev, NFC_PROTO_NFC_DEP_MASK, comm_mode, gb, gb_len); if (rc < 0) { - nfc_dev_err(&dev->interface->dev, - "Error when signaling target activation"); + nfc_err(&dev->interface->dev, + "Error when signaling target activation\n"); return rc; } @@ -1715,7 +1811,7 @@ static void pn533_listen_mode_timer(unsigned long data) { struct pn533 *dev = (struct pn533 *)data; - nfc_dev_dbg(&dev->interface->dev, "Listen mode timeout"); + dev_dbg(&dev->interface->dev, "Listen mode timeout\n"); dev->cancel_listen = 1; @@ -1730,13 +1826,12 @@ static int pn533_rf_complete(struct pn533 *dev, void *arg, { int rc = 0; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (IS_ERR(resp)) { rc = PTR_ERR(resp); - nfc_dev_err(&dev->interface->dev, "%s RF setting error %d", - __func__, rc); + nfc_err(&dev->interface->dev, "RF setting error %d", rc); return rc; } @@ -1754,7 +1849,7 @@ static void pn533_wq_rf(struct work_struct *work) struct sk_buff *skb; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb = pn533_alloc_skb(dev, 2); if (!skb) @@ -1767,25 +1862,136 @@ static void pn533_wq_rf(struct work_struct *work) pn533_rf_complete, NULL); if (rc < 0) { dev_kfree_skb(skb); - nfc_dev_err(&dev->interface->dev, "RF setting error %d", rc); + nfc_err(&dev->interface->dev, "RF setting error %d\n", rc); } return; } +static int pn533_poll_dep_complete(struct pn533 *dev, void *arg, + struct sk_buff *resp) +{ + struct pn533_cmd_jump_dep_response *rsp; + struct nfc_target nfc_target; + u8 target_gt_len; + int rc; + + if (IS_ERR(resp)) + return PTR_ERR(resp); + + rsp = (struct pn533_cmd_jump_dep_response *)resp->data; + + rc = rsp->status & PN533_CMD_RET_MASK; + if (rc != PN533_CMD_RET_SUCCESS) { + /* Not target found, turn radio off */ + queue_work(dev->wq, &dev->rf_work); + + dev_kfree_skb(resp); + return 0; + } + + dev_dbg(&dev->interface->dev, "Creating new target"); + + nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK; + nfc_target.nfcid1_len = 10; + memcpy(nfc_target.nfcid1, rsp->nfcid3t, nfc_target.nfcid1_len); + rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1); + if (rc) + goto error; + + dev->tgt_available_prots = 0; + dev->tgt_active_prot = NFC_PROTO_NFC_DEP; + + /* ATR_RES general bytes are located at offset 17 */ + target_gt_len = resp->len - 17; + rc = nfc_set_remote_general_bytes(dev->nfc_dev, + rsp->gt, target_gt_len); + if (!rc) { + rc = nfc_dep_link_is_up(dev->nfc_dev, + dev->nfc_dev->targets[0].idx, + 0, NFC_RF_INITIATOR); + + if (!rc) + pn533_poll_reset_mod_list(dev); + } +error: + dev_kfree_skb(resp); + return rc; +} + +#define PASSIVE_DATA_LEN 5 +static int pn533_poll_dep(struct nfc_dev *nfc_dev) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + struct sk_buff *skb; + int rc, skb_len; + u8 *next, nfcid3[NFC_NFCID3_MAXSIZE]; + u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3}; + + dev_dbg(&dev->interface->dev, "%s", __func__); + + if (!dev->gb) { + dev->gb = nfc_get_local_general_bytes(nfc_dev, &dev->gb_len); + + if (!dev->gb || !dev->gb_len) { + dev->poll_dep = 0; + queue_work(dev->wq, &dev->rf_work); + } + } + + skb_len = 3 + dev->gb_len; /* ActPass + BR + Next */ + skb_len += PASSIVE_DATA_LEN; + + /* NFCID3 */ + skb_len += NFC_NFCID3_MAXSIZE; + nfcid3[0] = 0x1; + nfcid3[1] = 0xfe; + get_random_bytes(nfcid3 + 2, 6); + + skb = pn533_alloc_skb(dev, skb_len); + if (!skb) + return -ENOMEM; + + *skb_put(skb, 1) = 0x01; /* Active */ + *skb_put(skb, 1) = 0x02; /* 424 kbps */ + + next = skb_put(skb, 1); /* Next */ + *next = 0; + + /* Copy passive data */ + memcpy(skb_put(skb, PASSIVE_DATA_LEN), passive_data, PASSIVE_DATA_LEN); + *next |= 1; + + /* Copy NFCID3 (which is NFCID2 from SENSF_RES) */ + memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), nfcid3, + NFC_NFCID3_MAXSIZE); + *next |= 2; + + memcpy(skb_put(skb, dev->gb_len), dev->gb, dev->gb_len); + *next |= 4; /* We have some Gi */ + + rc = pn533_send_cmd_async(dev, PN533_CMD_IN_JUMP_FOR_DEP, skb, + pn533_poll_dep_complete, NULL); + + if (rc < 0) + dev_kfree_skb(skb); + + return rc; +} + static int pn533_poll_complete(struct pn533 *dev, void *arg, struct sk_buff *resp) { struct pn533_poll_modulations *cur_mod; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (IS_ERR(resp)) { rc = PTR_ERR(resp); - nfc_dev_err(&dev->interface->dev, "%s Poll complete error %d", - __func__, rc); + nfc_err(&dev->interface->dev, "%s Poll complete error %d\n", + __func__, rc); if (rc == -ENOENT) { if (dev->poll_mod_count != 0) @@ -1793,8 +1999,8 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg, else goto stop_poll; } else if (rc < 0) { - nfc_dev_err(&dev->interface->dev, - "Error %d when running poll", rc); + nfc_err(&dev->interface->dev, + "Error %d when running poll\n", rc); goto stop_poll; } } @@ -1813,7 +2019,7 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg, goto done; if (!dev->poll_mod_count) { - nfc_dev_dbg(&dev->interface->dev, "Polling has been stopped."); + dev_dbg(&dev->interface->dev, "Polling has been stopped\n"); goto done; } @@ -1826,7 +2032,7 @@ done: return rc; stop_poll: - nfc_dev_err(&dev->interface->dev, "Polling operation has been stopped"); + nfc_err(&dev->interface->dev, "Polling operation has been stopped\n"); pn533_poll_reset_mod_list(dev); dev->poll_protocols = 0; @@ -1856,8 +2062,13 @@ static int pn533_send_poll_frame(struct pn533 *dev) mod = dev->poll_mod_active[dev->poll_mod_curr]; - nfc_dev_dbg(&dev->interface->dev, "%s mod len %d\n", - __func__, mod->len); + dev_dbg(&dev->interface->dev, "%s mod len %d\n", + __func__, mod->len); + + if (dev->poll_dep) { + dev->poll_dep = 0; + return pn533_poll_dep(dev->nfc_dev); + } if (mod->len == 0) { /* Listen mode */ cmd_code = PN533_CMD_TG_INIT_AS_TARGET; @@ -1868,7 +2079,7 @@ static int pn533_send_poll_frame(struct pn533 *dev) } if (!skb) { - nfc_dev_err(&dev->interface->dev, "Failed to allocate skb."); + nfc_err(&dev->interface->dev, "Failed to allocate skb\n"); return -ENOMEM; } @@ -1876,7 +2087,7 @@ static int pn533_send_poll_frame(struct pn533 *dev) NULL); if (rc < 0) { dev_kfree_skb(skb); - nfc_dev_err(&dev->interface->dev, "Polling loop error %d", rc); + nfc_err(&dev->interface->dev, "Polling loop error %d\n", rc); } return rc; @@ -1890,9 +2101,9 @@ static void pn533_wq_poll(struct work_struct *work) cur_mod = dev->poll_mod_active[dev->poll_mod_curr]; - nfc_dev_dbg(&dev->interface->dev, - "%s cancel_listen %d modulation len %d", - __func__, dev->cancel_listen, cur_mod->len); + dev_dbg(&dev->interface->dev, + "%s cancel_listen %d modulation len %d\n", + __func__, dev->cancel_listen, cur_mod->len); if (dev->cancel_listen == 1) { dev->cancel_listen = 0; @@ -1913,21 +2124,23 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, u32 im_protocols, u32 tm_protocols) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); + struct pn533_poll_modulations *cur_mod; u8 rand_mod; + int rc; - nfc_dev_dbg(&dev->interface->dev, - "%s: im protocols 0x%x tm protocols 0x%x", - __func__, im_protocols, tm_protocols); + dev_dbg(&dev->interface->dev, + "%s: im protocols 0x%x tm protocols 0x%x\n", + __func__, im_protocols, tm_protocols); if (dev->tgt_active_prot) { - nfc_dev_err(&dev->interface->dev, - "Cannot poll with a target already activated"); + nfc_err(&dev->interface->dev, + "Cannot poll with a target already activated\n"); return -EBUSY; } if (dev->tgt_mode) { - nfc_dev_err(&dev->interface->dev, - "Cannot poll while already being activated"); + nfc_err(&dev->interface->dev, + "Cannot poll while already being activated\n"); return -EBUSY; } @@ -1946,20 +2159,26 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, rand_mod %= dev->poll_mod_count; dev->poll_mod_curr = rand_mod; - return pn533_send_poll_frame(dev); + cur_mod = dev->poll_mod_active[dev->poll_mod_curr]; + + rc = pn533_send_poll_frame(dev); + + /* Start listen timer */ + if (!rc && cur_mod->len == 0 && dev->poll_mod_count > 1) + mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ); + + return rc; } static void pn533_stop_poll(struct nfc_dev *nfc_dev) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); - del_timer(&dev->listen_timer); if (!dev->poll_mod_count) { - nfc_dev_dbg(&dev->interface->dev, - "Polling operation was not running"); + dev_dbg(&dev->interface->dev, + "Polling operation was not running\n"); return; } @@ -1973,11 +2192,10 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev) struct pn533_cmd_activate_response *rsp; u16 gt_len; int rc; - struct sk_buff *skb; struct sk_buff *resp; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb = pn533_alloc_skb(dev, sizeof(u8) * 2); /*TG + Next*/ if (!skb) @@ -1993,8 +2211,8 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev) rsp = (struct pn533_cmd_activate_response *)resp->data; rc = rsp->status & PN533_CMD_RET_MASK; if (rc != PN533_CMD_RET_SUCCESS) { - nfc_dev_err(&dev->interface->dev, - "Target activation failed (error 0x%x)", rc); + nfc_err(&dev->interface->dev, + "Target activation failed (error 0x%x)\n", rc); dev_kfree_skb(resp); return -EIO; } @@ -2013,39 +2231,38 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev, struct pn533 *dev = nfc_get_drvdata(nfc_dev); int rc; - nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__, - protocol); + dev_dbg(&dev->interface->dev, "%s: protocol=%u\n", __func__, protocol); if (dev->poll_mod_count) { - nfc_dev_err(&dev->interface->dev, - "Cannot activate while polling"); + nfc_err(&dev->interface->dev, + "Cannot activate while polling\n"); return -EBUSY; } if (dev->tgt_active_prot) { - nfc_dev_err(&dev->interface->dev, - "There is already an active target"); + nfc_err(&dev->interface->dev, + "There is already an active target\n"); return -EBUSY; } if (!dev->tgt_available_prots) { - nfc_dev_err(&dev->interface->dev, - "There is no available target to activate"); + nfc_err(&dev->interface->dev, + "There is no available target to activate\n"); return -EINVAL; } if (!(dev->tgt_available_prots & (1 << protocol))) { - nfc_dev_err(&dev->interface->dev, - "Target doesn't support requested proto %u", - protocol); + nfc_err(&dev->interface->dev, + "Target doesn't support requested proto %u\n", + protocol); return -EINVAL; } if (protocol == NFC_PROTO_NFC_DEP) { rc = pn533_activate_target_nfcdep(dev); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Activating target with DEP failed %d", rc); + nfc_err(&dev->interface->dev, + "Activating target with DEP failed %d\n", rc); return rc; } } @@ -2060,16 +2277,14 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev, struct nfc_target *target) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); - struct sk_buff *skb; struct sk_buff *resp; - int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (!dev->tgt_active_prot) { - nfc_dev_err(&dev->interface->dev, "There is no active target"); + nfc_err(&dev->interface->dev, "There is no active target\n"); return; } @@ -2088,8 +2303,8 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev, rc = resp->data[0] & PN533_CMD_RET_MASK; if (rc != PN533_CMD_RET_SUCCESS) - nfc_dev_err(&dev->interface->dev, - "Error 0x%x when releasing the target", rc); + nfc_err(&dev->interface->dev, + "Error 0x%x when releasing the target\n", rc); dev_kfree_skb(resp); return; @@ -2111,8 +2326,8 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, if (dev->tgt_available_prots && !(dev->tgt_available_prots & (1 << NFC_PROTO_NFC_DEP))) { - nfc_dev_err(&dev->interface->dev, - "The target does not support DEP"); + nfc_err(&dev->interface->dev, + "The target does not support DEP\n"); rc = -EINVAL; goto error; } @@ -2121,15 +2336,15 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, rc = rsp->status & PN533_CMD_RET_MASK; if (rc != PN533_CMD_RET_SUCCESS) { - nfc_dev_err(&dev->interface->dev, - "Bringing DEP link up failed (error 0x%x)", rc); + nfc_err(&dev->interface->dev, + "Bringing DEP link up failed (error 0x%x)\n", rc); goto error; } if (!dev->tgt_available_prots) { struct nfc_target nfc_target; - nfc_dev_dbg(&dev->interface->dev, "Creating new target"); + dev_dbg(&dev->interface->dev, "Creating new target\n"); nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK; nfc_target.nfcid1_len = 10; @@ -2158,7 +2373,6 @@ error: } static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf); -#define PASSIVE_DATA_LEN 5 static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, u8 comm_mode, u8 *gb, size_t gb_len) { @@ -2166,20 +2380,19 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, struct sk_buff *skb; int rc, skb_len; u8 *next, *arg, nfcid3[NFC_NFCID3_MAXSIZE]; - u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3}; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (dev->poll_mod_count) { - nfc_dev_err(&dev->interface->dev, - "Cannot bring the DEP link up while polling"); + nfc_err(&dev->interface->dev, + "Cannot bring the DEP link up while polling\n"); return -EBUSY; } if (dev->tgt_active_prot) { - nfc_dev_err(&dev->interface->dev, - "There is already an active target"); + nfc_err(&dev->interface->dev, + "There is already an active target\n"); return -EBUSY; } @@ -2249,7 +2462,7 @@ static int pn533_dep_link_down(struct nfc_dev *nfc_dev) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); pn533_poll_reset_mod_list(dev); @@ -2274,7 +2487,7 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev) struct sk_buff *skb, *tmp, *t; unsigned int skb_len = 0, tmp_len = 0; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (skb_queue_empty(&dev->resp_q)) return NULL; @@ -2287,8 +2500,8 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev) skb_queue_walk_safe(&dev->resp_q, tmp, t) skb_len += tmp->len; - nfc_dev_dbg(&dev->interface->dev, "%s total length %d\n", - __func__, skb_len); + dev_dbg(&dev->interface->dev, "%s total length %d\n", + __func__, skb_len); skb = alloc_skb(skb_len, GFP_KERNEL); if (skb == NULL) @@ -2315,7 +2528,7 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg, int rc = 0; u8 status, ret, mi; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (IS_ERR(resp)) { rc = PTR_ERR(resp); @@ -2329,8 +2542,8 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg, skb_pull(resp, sizeof(status)); if (ret != PN533_CMD_RET_SUCCESS) { - nfc_dev_err(&dev->interface->dev, - "Exchanging data failed (error 0x%x)", ret); + nfc_err(&dev->interface->dev, + "Exchanging data failed (error 0x%x)\n", ret); rc = -EIO; goto error; } @@ -2388,14 +2601,17 @@ static int pn533_fill_fragment_skbs(struct pn533 *dev, struct sk_buff *skb) break; } - /* Reserve the TG/MI byte */ - skb_reserve(frag, 1); + if (!dev->tgt_mode) { + /* Reserve the TG/MI byte */ + skb_reserve(frag, 1); - /* MI + TG */ - if (frag_size == PN533_CMD_DATAFRAME_MAXLEN) - *skb_push(frag, sizeof(u8)) = (PN533_CMD_MI_MASK | 1); - else - *skb_push(frag, sizeof(u8)) = 1; /* TG */ + /* MI + TG */ + if (frag_size == PN533_CMD_DATAFRAME_MAXLEN) + *skb_push(frag, sizeof(u8)) = + (PN533_CMD_MI_MASK | 1); + else + *skb_push(frag, sizeof(u8)) = 1; /* TG */ + } memcpy(skb_put(frag, frag_size), skb->data, frag_size); @@ -2420,11 +2636,11 @@ static int pn533_transceive(struct nfc_dev *nfc_dev, struct pn533_data_exchange_arg *arg = NULL; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (!dev->tgt_active_prot) { - nfc_dev_err(&dev->interface->dev, - "Can't exchange data if there is no active target"); + nfc_err(&dev->interface->dev, + "Can't exchange data if there is no active target\n"); rc = -EINVAL; goto error; } @@ -2487,13 +2703,18 @@ static int pn533_tm_send_complete(struct pn533 *dev, void *arg, { u8 status; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); if (IS_ERR(resp)) return PTR_ERR(resp); status = resp->data[0]; + /* Prepare for the next round */ + if (skb_queue_len(&dev->fragment_skb) > 0) { + queue_work(dev->wq, &dev->mi_tm_tx_work); + return -EINPROGRESS; + } dev_kfree_skb(resp); if (status != 0) { @@ -2514,19 +2735,34 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) struct pn533 *dev = nfc_get_drvdata(nfc_dev); int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); + /* let's split in multiple chunks if size's too big */ if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) { - nfc_dev_err(&dev->interface->dev, - "Data length greater than the max allowed: %d", - PN533_CMD_DATAEXCH_DATA_MAXLEN); - return -ENOSYS; + rc = pn533_fill_fragment_skbs(dev, skb); + if (rc <= 0) + goto error; + + /* get the first skb */ + skb = skb_dequeue(&dev->fragment_skb); + if (!skb) { + rc = -EIO; + goto error; + } + + rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_META_DATA, skb, + pn533_tm_send_complete, NULL); + } else { + /* Send th skb */ + rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb, + pn533_tm_send_complete, NULL); } - rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb, - pn533_tm_send_complete, NULL); - if (rc < 0) +error: + if (rc < 0) { dev_kfree_skb(skb); + skb_queue_purge(&dev->fragment_skb); + } return rc; } @@ -2534,11 +2770,10 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) static void pn533_wq_mi_recv(struct work_struct *work) { struct pn533 *dev = container_of(work, struct pn533, mi_rx_work); - struct sk_buff *skb; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb = pn533_alloc_skb(dev, PN533_CMD_DATAEXCH_HEAD_LEN); if (!skb) @@ -2570,8 +2805,8 @@ static void pn533_wq_mi_recv(struct work_struct *work) if (rc == 0) /* success */ return; - nfc_dev_err(&dev->interface->dev, - "Error %d when trying to perform data_exchange", rc); + nfc_err(&dev->interface->dev, + "Error %d when trying to perform data_exchange\n", rc); dev_kfree_skb(skb); kfree(dev->cmd_complete_mi_arg); @@ -2587,7 +2822,7 @@ static void pn533_wq_mi_send(struct work_struct *work) struct sk_buff *skb; int rc; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); /* Grab the first skb in the queue */ skb = skb_dequeue(&dev->fragment_skb); @@ -2625,8 +2860,8 @@ static void pn533_wq_mi_send(struct work_struct *work) if (rc == 0) /* success */ return; - nfc_dev_err(&dev->interface->dev, - "Error %d when trying to perform data_exchange", rc); + nfc_err(&dev->interface->dev, + "Error %d when trying to perform data_exchange\n", rc); dev_kfree_skb(skb); kfree(dev->cmd_complete_dep_arg); @@ -2641,10 +2876,9 @@ static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata, { struct sk_buff *skb; struct sk_buff *resp; - int skb_len; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb_len = sizeof(cfgitem) + cfgdata_len; /* cfgitem + cfgdata */ @@ -2691,7 +2925,7 @@ static int pn533_pasori_fw_reset(struct pn533 *dev) struct sk_buff *skb; struct sk_buff *resp; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); skb = pn533_alloc_skb(dev, sizeof(u8)); if (!skb) @@ -2717,7 +2951,7 @@ static void pn533_acr122_poweron_rdr_resp(struct urb *urb) { struct pn533_acr122_poweron_rdr_arg *arg = urb->context; - nfc_dev_dbg(&urb->dev->dev, "%s", __func__); + dev_dbg(&urb->dev->dev, "%s\n", __func__); print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1, urb->transfer_buffer, urb->transfer_buffer_length, @@ -2737,7 +2971,7 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev) void *cntx; struct pn533_acr122_poweron_rdr_arg arg; - nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_dbg(&dev->interface->dev, "%s\n", __func__); init_completion(&arg.done); cntx = dev->in_urb->context; /* backup context */ @@ -2755,16 +2989,15 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev) rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Reader power on cmd error %d", rc); + nfc_err(&dev->interface->dev, + "Reader power on cmd error %d\n", rc); return rc; } rc = usb_submit_urb(dev->in_urb, GFP_KERNEL); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Can't submit for reader power on cmd response %d", - rc); + nfc_err(&dev->interface->dev, + "Can't submit reader poweron cmd response %d\n", rc); return rc; } @@ -2785,20 +3018,19 @@ static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf) rc = pn533_set_configuration(dev, PN533_CFGITEM_RF_FIELD, (u8 *)&rf_field, 1); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Error on setting RF field"); + nfc_err(&dev->interface->dev, "Error on setting RF field\n"); return rc; } return rc; } -int pn533_dev_up(struct nfc_dev *nfc_dev) +static int pn533_dev_up(struct nfc_dev *nfc_dev) { return pn533_rf_field(nfc_dev, 1); } -int pn533_dev_down(struct nfc_dev *nfc_dev) +static int pn533_dev_down(struct nfc_dev *nfc_dev) { return pn533_rf_field(nfc_dev, 0); } @@ -2839,16 +3071,16 @@ static int pn533_setup(struct pn533 *dev) break; default: - nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n", - dev->device_type); + nfc_err(&dev->interface->dev, "Unknown device type %d\n", + dev->device_type); return -EINVAL; } rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES, (u8 *)&max_retries, sizeof(max_retries)); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Error on setting MAX_RETRIES config"); + nfc_err(&dev->interface->dev, + "Error on setting MAX_RETRIES config\n"); return rc; } @@ -2856,8 +3088,7 @@ static int pn533_setup(struct pn533 *dev) rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING, (u8 *)&timing, sizeof(timing)); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Error on setting RF timings"); + nfc_err(&dev->interface->dev, "Error on setting RF timings\n"); return rc; } @@ -2871,8 +3102,8 @@ static int pn533_setup(struct pn533 *dev) rc = pn533_set_configuration(dev, PN533_CFGITEM_PASORI, pasori_cfg, 3); if (rc) { - nfc_dev_err(&dev->interface->dev, - "Error while settings PASORI config"); + nfc_err(&dev->interface->dev, + "Error while settings PASORI config\n"); return rc; } @@ -2917,8 +3148,8 @@ static int pn533_probe(struct usb_interface *interface, } if (!in_endpoint || !out_endpoint) { - nfc_dev_err(&interface->dev, - "Could not find bulk-in or bulk-out endpoint"); + nfc_err(&interface->dev, + "Could not find bulk-in or bulk-out endpoint\n"); rc = -ENODEV; goto error; } @@ -2941,6 +3172,8 @@ static int pn533_probe(struct usb_interface *interface, INIT_WORK(&dev->mi_rx_work, pn533_wq_mi_recv); INIT_WORK(&dev->mi_tx_work, pn533_wq_mi_send); INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data); + INIT_WORK(&dev->mi_tm_rx_work, pn533_wq_tm_mi_recv); + INIT_WORK(&dev->mi_tm_tx_work, pn533_wq_tm_mi_send); INIT_DELAYED_WORK(&dev->poll_work, pn533_wq_poll); INIT_WORK(&dev->rf_work, pn533_wq_rf); dev->wq = alloc_ordered_workqueue("pn533", 0); @@ -2978,16 +3211,15 @@ static int pn533_probe(struct usb_interface *interface, rc = pn533_acr122_poweron_rdr(dev); if (rc < 0) { - nfc_dev_err(&dev->interface->dev, - "Couldn't poweron the reader (error %d)", - rc); + nfc_err(&dev->interface->dev, + "Couldn't poweron the reader (error %d)\n", rc); goto destroy_wq; } break; default: - nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n", - dev->device_type); + nfc_err(&dev->interface->dev, "Unknown device type %d\n", + dev->device_type); rc = -EINVAL; goto destroy_wq; } @@ -2997,9 +3229,9 @@ static int pn533_probe(struct usb_interface *interface, if (rc < 0) goto destroy_wq; - nfc_dev_info(&dev->interface->dev, - "NXP PN5%02X firmware ver %d.%d now attached", - fw_ver.ic, fw_ver.ver, fw_ver.rev); + nfc_info(&dev->interface->dev, + "NXP PN5%02X firmware ver %d.%d now attached\n", + fw_ver.ic, fw_ver.ver, fw_ver.rev); dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols, @@ -3070,7 +3302,7 @@ static void pn533_disconnect(struct usb_interface *interface) usb_free_urb(dev->out_urb); kfree(dev); - nfc_dev_info(&interface->dev, "NXP PN533 NFC device disconnected"); + nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n"); } static struct usb_driver pn533_driver = { |
