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Commit 13003649 authored by Waldemar Rymarkiewicz's avatar Waldemar Rymarkiewicz Committed by Samuel Ortiz
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NFC: pn533: Del frame logic from InJumForDep cmd 



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

Signed-off-by: default avatarWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent e4878823

drivers/nfc/pn533.c

+55 −62
Original line number Diff line number Diff line
@@ -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);



	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 */



	next = skb_put(skb, 1);  /* Next */

	*next = 0;



	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;

	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;

}