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NFC: pn533: Del frame logic from InJumForDep cmd

Browse Source 
Remove frame logic from InJmumpForDEP command using
the new iface for async send.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Waldemar Rymarkiewicz 2012-12-10 14:42:45 +01:00 committed by Samuel Ortiz
parent e487882345
commit 13003649b1
1 changed files with 55 additions and 62 deletions
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117
drivers/nfc/pn533.c
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@ -298,14 +298,6 @@ struct pn533_cmd_activate_response {
u8 gt[];
} __packed;
/* PN533_CMD_IN_JUMP_FOR_DEP */
struct pn533_cmd_jump_dep {
u8 active;
u8 baud;
u8 next;
u8 data[];
} __packed;
struct pn533_cmd_jump_dep_response {
u8 status;
u8 tg;
@ -1861,53 +1853,46 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
u8 *params, int params_len)
struct sk_buff *resp)
{
struct pn533_cmd_jump_dep_response *resp;
struct nfc_target nfc_target;
struct pn533_cmd_jump_dep_response *rsp;
u8 target_gt_len;
int rc;
struct pn533_cmd_jump_dep *cmd = (struct pn533_cmd_jump_dep *)arg;
u8 active = cmd->active;
u8 active = *(u8 *)arg;
kfree(arg);
if (params_len == -ENOENT) {
nfc_dev_dbg(&dev->interface->dev, "");
return 0;
}
if (params_len < 0) {
nfc_dev_err(&dev->interface->dev,
"Error %d when bringing DEP link up",
params_len);
return 0;
}
if (IS_ERR(resp))
return PTR_ERR(resp);
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");
return -EINVAL;
rc = -EINVAL;
goto error;
}
resp = (struct pn533_cmd_jump_dep_response *) params;
rc = resp->status & PN533_CMD_RET_MASK;
rsp = (struct pn533_cmd_jump_dep_response *)resp->data;
rc = rsp->status & PN533_CMD_RET_MASK;
if (rc != PN533_CMD_RET_SUCCESS) {
nfc_dev_err(&dev->interface->dev,
"Bringing DEP link up failed %d", rc);
return 0;
goto error;
}
if (!dev->tgt_available_prots) {
struct nfc_target nfc_target;
nfc_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, resp->nfcid3t, nfc_target.nfcid1_len);
memcpy(nfc_target.nfcid1, rsp->nfcid3t, nfc_target.nfcid1_len);
rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1);
if (rc)
return 0;
goto error;
dev->tgt_available_prots = 0;
}
@ -1915,15 +1900,17 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
dev->tgt_active_prot = NFC_PROTO_NFC_DEP;
/* ATR_RES general bytes are located at offset 17 */
target_gt_len = PN533_FRAME_CMD_PARAMS_LEN(dev->in_frame) - 17;
target_gt_len = resp->len - 17;
rc = nfc_set_remote_general_bytes(dev->nfc_dev,
resp->gt, target_gt_len);
rsp->gt, target_gt_len);
if (rc == 0)
rc = nfc_dep_link_is_up(dev->nfc_dev,
dev->nfc_dev->targets[0].idx,
!active, NFC_RF_INITIATOR);
dev->nfc_dev->targets[0].idx,
!active, NFC_RF_INITIATOR);
return 0;
error:
dev_kfree_skb(resp);
return rc;
}
static int pn533_mod_to_baud(struct pn533 *dev)
@ -1945,10 +1932,11 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
u8 comm_mode, u8* gb, size_t gb_len)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
struct pn533_cmd_jump_dep *cmd;
u8 cmd_len, *data_ptr;
struct sk_buff *skb;
int rc, baud, skb_len;
u8 *next, *arg;
u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
int rc, baud;
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
@ -1971,43 +1959,48 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
return baud;
}
cmd_len = sizeof(struct pn533_cmd_jump_dep) + gb_len;
skb_len = 3 + gb_len; /* ActPass + BR + Next */
if (comm_mode == NFC_COMM_PASSIVE)
cmd_len += PASSIVE_DATA_LEN;
skb_len += PASSIVE_DATA_LEN;
cmd = kzalloc(cmd_len, GFP_KERNEL);
if (cmd == NULL)
skb = pn533_alloc_skb(skb_len);
if (!skb)
return -ENOMEM;
pn533_tx_frame_init(dev->out_frame, PN533_CMD_IN_JUMP_FOR_DEP);
*skb_put(skb, 1) = !comm_mode; /* ActPass */
*skb_put(skb, 1) = baud; /* Baud rate */
cmd->active = !comm_mode;
cmd->next = 0;
cmd->baud = baud;
data_ptr = cmd->data;
if (comm_mode == NFC_COMM_PASSIVE && cmd->baud > 0) {
memcpy(data_ptr, passive_data, PASSIVE_DATA_LEN);
cmd->next |= 1;
data_ptr += PASSIVE_DATA_LEN;
next = skb_put(skb, 1); /* Next */
*next = 0;
if (comm_mode == NFC_COMM_PASSIVE && baud > 0) {
memcpy(skb_put(skb, PASSIVE_DATA_LEN), passive_data,
PASSIVE_DATA_LEN);
*next |= 1;
}
if (gb != NULL && gb_len > 0) {
cmd->next |= 4; /* We have some Gi */
memcpy(data_ptr, gb, gb_len);
memcpy(skb_put(skb, gb_len), gb, gb_len);
*next |= 4; /* We have some Gi */
} else {
cmd->next = 0;
*next = 0;
}
memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame), cmd, cmd_len);
dev->out_frame->datalen += cmd_len;
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
if (!arg) {
dev_kfree_skb(skb);
return -ENOMEM;
}
pn533_tx_frame_finish(dev->out_frame);
*arg = !comm_mode;
rc = pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame,
PN533_NORMAL_FRAME_MAX_LEN,
pn533_in_dep_link_up_complete, cmd);
if (rc < 0)
kfree(cmd);
rc = pn533_send_cmd_async(dev, PN533_CMD_IN_JUMP_FOR_DEP, skb,
pn533_in_dep_link_up_complete, arg);
if (rc < 0) {
dev_kfree_skb(skb);
kfree(arg);
}
return rc;
}