Merge branch '3.4-rc1' into android-tegra-nv-3.3-rebased

Change-Id: Ib3b69ffc5ac3e07c9cc44cc49e9142088eec477e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

2 files changed, 310 insertions, 26 deletions

diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 06c3642e5bdb..1f74a77d040d 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -28,6 +28,8 @@
  */
 #include <linux/platform_device.h>
 #include <linux/module.h>
+#include <linux/types.h>
+#include <linux/firmware.h>
 #include <linux/nfc.h>
 #include <net/nfc/nci.h>
 #include <net/nfc/nci_core.h>
@@ -40,11 +42,52 @@
 #define NFCWILINK_OFFSET_LEN_IN_HDR	1
 #define NFCWILINK_LEN_SIZE		2
 #define NFCWILINK_REGISTER_TIMEOUT	8000	/* 8 sec */
+#define NFCWILINK_CMD_TIMEOUT		5000	/* 5 sec */
+
+#define BTS_FILE_NAME_MAX_SIZE		40
+#define BTS_FILE_HDR_MAGIC		0x42535442
+#define BTS_FILE_CMD_MAX_LEN		0xff
+#define BTS_FILE_ACTION_TYPE_SEND_CMD	1
+
+#define NCI_VS_NFCC_INFO_CMD_GID	0x2f
+#define NCI_VS_NFCC_INFO_CMD_OID	0x12
+#define NCI_VS_NFCC_INFO_RSP_GID	0x4f
+#define NCI_VS_NFCC_INFO_RSP_OID	0x12
 
 struct nfcwilink_hdr {
-	u8 chnl;
-	u8 opcode;
-	u16 len;
+	__u8 chnl;
+	__u8 opcode;
+	__le16 len;
+} __packed;
+
+struct nci_vs_nfcc_info_cmd {
+	__u8 gid;
+	__u8 oid;
+	__u8 plen;
+} __packed;
+
+struct nci_vs_nfcc_info_rsp {
+	__u8 gid;
+	__u8 oid;
+	__u8 plen;
+	__u8 status;
+	__u8 hw_id;
+	__u8 sw_ver_x;
+	__u8 sw_ver_z;
+	__u8 patch_id;
+} __packed;
+
+struct bts_file_hdr {
+	__le32 magic;
+	__le32 ver;
+	__u8 rfu[24];
+	__u8 actions[0];
+} __packed;
+
+struct bts_file_action {
+	__le16 type;
+	__le16 len;
+	__u8 data[0];
 } __packed;
 
 struct nfcwilink {
@@ -54,14 +97,241 @@ struct nfcwilink {
 
 	char				st_register_cb_status;
 	long				(*st_write) (struct sk_buff *);
-	struct completion		st_register_completed;
+
+	struct completion		completed;
+
+	struct nci_vs_nfcc_info_rsp	nfcc_info;
 };
 
 /* NFCWILINK driver flags */
 enum {
 	NFCWILINK_RUNNING,
+	NFCWILINK_FW_DOWNLOAD,
 };
 
+static int nfcwilink_send(struct sk_buff *skb);
+
+static inline struct sk_buff *nfcwilink_skb_alloc(unsigned int len, gfp_t how)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(len + NFCWILINK_HDR_LEN, how);
+	if (skb)
+		skb_reserve(skb, NFCWILINK_HDR_LEN);
+
+	return skb;
+}
+
+static void nfcwilink_fw_download_receive(struct nfcwilink *drv,
+						struct sk_buff *skb)
+{
+	struct nci_vs_nfcc_info_rsp *rsp = (void *)skb->data;
+
+	/* Detect NCI_VS_NFCC_INFO_RSP and store the result */
+	if ((skb->len > 3) && (rsp->gid == NCI_VS_NFCC_INFO_RSP_GID) &&
+		(rsp->oid == NCI_VS_NFCC_INFO_RSP_OID)) {
+		memcpy(&drv->nfcc_info, rsp,
+			sizeof(struct nci_vs_nfcc_info_rsp));
+	}
+
+	kfree_skb(skb);
+
+	complete(&drv->completed);
+}
+
+static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
+{
+	struct nci_vs_nfcc_info_cmd *cmd;
+	struct sk_buff *skb;
+	unsigned long comp_ret;
+	int rc;
+
+	nfc_dev_dbg(&drv->pdev->dev, "get_bts_file_name entry");
+
+	skb = nfcwilink_skb_alloc(sizeof(struct nci_vs_nfcc_info_cmd),
+					GFP_KERNEL);
+	if (!skb) {
+		nfc_dev_err(&drv->pdev->dev,
+				"no memory for nci_vs_nfcc_info_cmd");
+		return -ENOMEM;
+	}
+
+	skb->dev = (void *)drv->ndev;
+
+	cmd = (struct nci_vs_nfcc_info_cmd *)
+			skb_put(skb, sizeof(struct nci_vs_nfcc_info_cmd));
+	cmd->gid = NCI_VS_NFCC_INFO_CMD_GID;
+	cmd->oid = NCI_VS_NFCC_INFO_CMD_OID;
+	cmd->plen = 0;
+
+	drv->nfcc_info.plen = 0;
+
+	rc = nfcwilink_send(skb);
+	if (rc)
+		return rc;
+
+	comp_ret = wait_for_completion_timeout(&drv->completed,
+				msecs_to_jiffies(NFCWILINK_CMD_TIMEOUT));
+	nfc_dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld",
+			comp_ret);
+	if (comp_ret == 0) {
+		nfc_dev_err(&drv->pdev->dev,
+				"timeout on wait_for_completion_timeout");
+		return -ETIMEDOUT;
+	}
+
+	nfc_dev_dbg(&drv->pdev->dev, "nci_vs_nfcc_info_rsp: plen %d, status %d",
+			drv->nfcc_info.plen,
+			drv->nfcc_info.status);
+
+	if ((drv->nfcc_info.plen != 5) || (drv->nfcc_info.status != 0)) {
+		nfc_dev_err(&drv->pdev->dev,
+				"invalid nci_vs_nfcc_info_rsp");
+		return -EINVAL;
+	}
+
+	snprintf(file_name, BTS_FILE_NAME_MAX_SIZE,
+			"TINfcInit_%d.%d.%d.%d.bts",
+			drv->nfcc_info.hw_id,
+			drv->nfcc_info.sw_ver_x,
+			drv->nfcc_info.sw_ver_z,
+			drv->nfcc_info.patch_id);
+
+	nfc_dev_info(&drv->pdev->dev, "nfcwilink FW file name: %s", file_name);
+
+	return 0;
+}
+
+static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
+{
+	struct nfcwilink_hdr *hdr = (struct nfcwilink_hdr *)data;
+	struct sk_buff *skb;
+	unsigned long comp_ret;
+	int rc;
+
+	nfc_dev_dbg(&drv->pdev->dev, "send_bts_cmd entry");
+
+	/* verify valid cmd for the NFC channel */
+	if ((len <= sizeof(struct nfcwilink_hdr)) ||
+		(len > BTS_FILE_CMD_MAX_LEN) ||
+		(hdr->chnl != NFCWILINK_CHNL) ||
+		(hdr->opcode != NFCWILINK_OPCODE)) {
+		nfc_dev_err(&drv->pdev->dev,
+			"ignoring invalid bts cmd, len %d, chnl %d, opcode %d",
+			len, hdr->chnl, hdr->opcode);
+		return 0;
+	}
+
+	/* remove the ST header */
+	len -= sizeof(struct nfcwilink_hdr);
+	data += sizeof(struct nfcwilink_hdr);
+
+	skb = nfcwilink_skb_alloc(len, GFP_KERNEL);
+	if (!skb) {
+		nfc_dev_err(&drv->pdev->dev, "no memory for bts cmd");
+		return -ENOMEM;
+	}
+
+	skb->dev = (void *)drv->ndev;
+
+	memcpy(skb_put(skb, len), data, len);
+
+	rc = nfcwilink_send(skb);
+	if (rc)
+		return rc;
+
+	comp_ret = wait_for_completion_timeout(&drv->completed,
+				msecs_to_jiffies(NFCWILINK_CMD_TIMEOUT));
+	nfc_dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld",
+			comp_ret);
+	if (comp_ret == 0) {
+		nfc_dev_err(&drv->pdev->dev,
+				"timeout on wait_for_completion_timeout");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int nfcwilink_download_fw(struct nfcwilink *drv)
+{
+	unsigned char file_name[BTS_FILE_NAME_MAX_SIZE];
+	const struct firmware *fw;
+	__u16 action_type, action_len;
+	__u8 *ptr;
+	int len, rc;
+
+	nfc_dev_dbg(&drv->pdev->dev, "download_fw entry");
+
+	set_bit(NFCWILINK_FW_DOWNLOAD, &drv->flags);
+
+	rc = nfcwilink_get_bts_file_name(drv, file_name);
+	if (rc)
+		goto exit;
+
+	rc = request_firmware(&fw, file_name, &drv->pdev->dev);
+	if (rc) {
+		nfc_dev_err(&drv->pdev->dev, "request_firmware failed %d", rc);
+
+		/* if the file is not found, don't exit with failure */
+		if (rc == -ENOENT)
+			rc = 0;
+
+		goto exit;
+	}
+
+	len = fw->size;
+	ptr = (__u8 *)fw->data;
+
+	if ((len == 0) || (ptr == NULL)) {
+		nfc_dev_dbg(&drv->pdev->dev,
+				"request_firmware returned size %d", len);
+		goto release_fw;
+	}
+
+	if (__le32_to_cpu(((struct bts_file_hdr *)ptr)->magic) !=
+			BTS_FILE_HDR_MAGIC) {
+		nfc_dev_err(&drv->pdev->dev, "wrong bts magic number");
+		rc = -EINVAL;
+		goto release_fw;
+	}
+
+	/* remove the BTS header */
+	len -= sizeof(struct bts_file_hdr);
+	ptr += sizeof(struct bts_file_hdr);
+
+	while (len > 0) {
+		action_type =
+			__le16_to_cpu(((struct bts_file_action *)ptr)->type);
+		action_len =
+			__le16_to_cpu(((struct bts_file_action *)ptr)->len);
+
+		nfc_dev_dbg(&drv->pdev->dev, "bts_file_action type %d, len %d",
+				action_type, action_len);
+
+		switch (action_type) {
+		case BTS_FILE_ACTION_TYPE_SEND_CMD:
+			rc = nfcwilink_send_bts_cmd(drv,
+					((struct bts_file_action *)ptr)->data,
+					action_len);
+			if (rc)
+				goto release_fw;
+			break;
+		}
+
+		/* advance to the next action */
+		len -= (sizeof(struct bts_file_action) + action_len);
+		ptr += (sizeof(struct bts_file_action) + action_len);
+	}
+
+release_fw:
+	release_firmware(fw);
+
+exit:
+	clear_bit(NFCWILINK_FW_DOWNLOAD, &drv->flags);
+	return rc;
+}
+
 /* Called by ST when registration is complete */
 static void nfcwilink_register_complete(void *priv_data, char data)
 {
@@ -73,7 +343,7 @@ static void nfcwilink_register_complete(void *priv_data, char data)
 	drv->st_register_cb_status = data;
 
 	/* complete the wait in nfc_st_open() */
-	complete(&drv->st_register_completed);
+	complete(&drv->completed);
 }
 
 /* Called by ST when receive data is available */
@@ -96,6 +366,11 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 	(apart for the chnl byte, which is not received in the hdr) */
 	skb_pull(skb, (NFCWILINK_HDR_LEN-1));
 
+	if (test_bit(NFCWILINK_FW_DOWNLOAD, &drv->flags)) {
+		nfcwilink_fw_download_receive(drv, skb);
+		return 0;
+	}
+
 	skb->dev = (void *) drv->ndev;
 
 	/* Forward skb to NCI core layer */
@@ -136,14 +411,14 @@ static int nfcwilink_open(struct nci_dev *ndev)
 
 	nfcwilink_proto.priv_data = drv;
 
-	init_completion(&drv->st_register_completed);
+	init_completion(&drv->completed);
 	drv->st_register_cb_status = -EINPROGRESS;
 
 	rc = st_register(&nfcwilink_proto);
 	if (rc < 0) {
 		if (rc == -EINPROGRESS) {
 			comp_ret = wait_for_completion_timeout(
-			&drv->st_register_completed,
+			&drv->completed,
 			msecs_to_jiffies(NFCWILINK_REGISTER_TIMEOUT));
 
 			nfc_dev_dbg(&drv->pdev->dev,
@@ -171,6 +446,12 @@ static int nfcwilink_open(struct nci_dev *ndev)
 	BUG_ON(nfcwilink_proto.write == NULL);
 	drv->st_write = nfcwilink_proto.write;
 
+	if (nfcwilink_download_fw(drv)) {
+		nfc_dev_err(&drv->pdev->dev, "nfcwilink_download_fw failed %d",
+				rc);
+		/* open should succeed, even if the FW download failed */
+	}
+
 	goto exit;
 
 clear_exit:
@@ -208,11 +489,13 @@ static int nfcwilink_send(struct sk_buff *skb)
 
 	nfc_dev_dbg(&drv->pdev->dev, "send entry, len %d", skb->len);
 
-	if (!test_bit(NFCWILINK_RUNNING, &drv->flags))
-		return -EBUSY;
+	if (!test_bit(NFCWILINK_RUNNING, &drv->flags)) {
+		kfree_skb(skb);
+		return -EINVAL;
+	}
 
 	/* add the ST hdr to the start of the buffer */
-	hdr.len = skb->len;
+	hdr.len = cpu_to_le16(skb->len);
 	memcpy(skb_push(skb, NFCWILINK_HDR_LEN), &hdr, NFCWILINK_HDR_LEN);
 
 	/* Insert skb to shared transport layer's transmit queue.
@@ -239,7 +522,7 @@ static int nfcwilink_probe(struct platform_device *pdev)
 {
 	static struct nfcwilink *drv;
 	int rc;
-	u32 protocols;
+	__u32 protocols;
 
 	nfc_dev_dbg(&pdev->dev, "probe entry");
 
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 1a1500bc8452..cb6204f78300 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -736,6 +736,8 @@ static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
 
 	nfc_tgt->sens_res = be16_to_cpu(tgt_type_a->sens_res);
 	nfc_tgt->sel_res = tgt_type_a->sel_res;
+	nfc_tgt->nfcid1_len = tgt_type_a->nfcid_len;
+	memcpy(nfc_tgt->nfcid1, tgt_type_a->nfcid_data, nfc_tgt->nfcid1_len);
 
 	return 0;
 }
@@ -781,6 +783,9 @@ static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
 	else
 		nfc_tgt->supported_protocols = NFC_PROTO_FELICA_MASK;
 
+	memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9);
+	nfc_tgt->sensf_res_len = 9;
+
 	return 0;
 }
 
@@ -823,6 +828,8 @@ static int pn533_target_found_jewel(struct nfc_target *nfc_tgt, u8 *tgt_data,
 
 	nfc_tgt->supported_protocols = NFC_PROTO_JEWEL_MASK;
 	nfc_tgt->sens_res = be16_to_cpu(tgt_jewel->sens_res);
+	nfc_tgt->nfcid1_len = 4;
+	memcpy(nfc_tgt->nfcid1, tgt_jewel->jewelid, nfc_tgt->nfcid1_len);
 
 	return 0;
 }
@@ -902,6 +909,8 @@ static int pn533_target_found(struct pn533 *dev,
 	if (resp->tg != 1)
 		return -EPROTO;
 
+	memset(&nfc_tgt, 0, sizeof(struct nfc_target));
+
 	target_data_len = resp_len - sizeof(struct pn533_poll_response);
 
 	switch (dev->poll_mod_curr) {
@@ -1307,6 +1316,8 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
 		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);
 		rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1);
 		if (rc)
 			return 0;
@@ -1329,21 +1340,15 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
 }
 
 static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx,
-						u8 comm_mode, u8 rf_mode)
+			     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, local_gt_len, *local_gt;
+	u8 cmd_len;
 	int rc;
 
 	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
 
-	if (rf_mode == NFC_RF_TARGET) {
-		nfc_dev_err(&dev->interface->dev, "Target mode not supported");
-		return -EOPNOTSUPP;
-	}
-
-
 	if (dev->poll_mod_count) {
 		nfc_dev_err(&dev->interface->dev,
 				"Cannot bring the DEP link up while polling");
@@ -1356,11 +1361,7 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx,
 		return -EBUSY;
 	}
 
-	local_gt = nfc_get_local_general_bytes(dev->nfc_dev, &local_gt_len);
-	if (local_gt_len > NFC_MAX_GT_LEN)
-		return -EINVAL;
-
-	cmd_len = sizeof(struct pn533_cmd_jump_dep) + local_gt_len;
+	cmd_len = sizeof(struct pn533_cmd_jump_dep) + gb_len;
 	cmd = kzalloc(cmd_len, GFP_KERNEL);
 	if (cmd == NULL)
 		return -ENOMEM;
@@ -1369,9 +1370,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx,
 
 	cmd->active = !comm_mode;
 	cmd->baud = 0;
-	if (local_gt != NULL) {
+	if (gb != NULL && gb_len > 0) {
 		cmd->next = 4; /* We have some Gi */
-		memcpy(cmd->gt, local_gt, local_gt_len);
+		memcpy(cmd->gt, gb, gb_len);
 	} else {
 		cmd->next = 0;
 	}