Linux-libre 4.4-gnupck-4.4-gnu

1 files changed, 0 insertions, 420 deletions

diff --git a/drivers/nfc/st21nfca/st21nfca_se.c b/drivers/nfc/st21nfca/st21nfca_se.c
deleted file mode 100644
index 3197e9bb6..000000000
--- a/drivers/nfc/st21nfca/st21nfca_se.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
- * Copyright (C) 2014  STMicroelectronics SAS. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <net/nfc/hci.h>
-
-#include "st21nfca.h"
-#include "st21nfca_se.h"
-
-#define ST21NFCA_EVT_UICC_ACTIVATE		0x10
-#define ST21NFCA_EVT_UICC_DEACTIVATE	0x13
-#define ST21NFCA_EVT_SE_HARD_RESET		0x20
-#define ST21NFCA_EVT_SE_SOFT_RESET		0x11
-#define ST21NFCA_EVT_SE_END_OF_APDU_TRANSFER	0x21
-#define ST21NFCA_EVT_SE_ACTIVATE		0x22
-#define ST21NFCA_EVT_SE_DEACTIVATE		0x23
-
-#define ST21NFCA_EVT_TRANSMIT_DATA		0x10
-#define ST21NFCA_EVT_WTX_REQUEST		0x11
-
-#define ST21NFCA_EVT_CONNECTIVITY		0x10
-#define ST21NFCA_EVT_TRANSACTION		0x12
-
-#define ST21NFCA_ESE_HOST_ID			0xc0
-
-#define ST21NFCA_SE_TO_HOT_PLUG			1000
-/* Connectivity pipe only */
-#define ST21NFCA_SE_COUNT_PIPE_UICC		0x01
-/* Connectivity + APDU Reader pipe */
-#define ST21NFCA_SE_COUNT_PIPE_EMBEDDED	0x02
-
-#define ST21NFCA_SE_MODE_OFF			0x00
-#define ST21NFCA_SE_MODE_ON				0x01
-
-#define ST21NFCA_PARAM_ATR				0x01
-#define ST21NFCA_ATR_DEFAULT_BWI		0x04
-
-/*
- * WT = 2^BWI/10[s], convert into msecs and add a secure
- * room by increasing by 2 this timeout
- */
-#define ST21NFCA_BWI_TO_TIMEOUT(x)		((1 << x) * 200)
-#define ST21NFCA_ATR_GET_Y_FROM_TD(x)	(x >> 4)
-
-/* If TA is present bit 0 is set */
-#define ST21NFCA_ATR_TA_PRESENT(x) (x & 0x01)
-/* If TB is present bit 1 is set */
-#define ST21NFCA_ATR_TB_PRESENT(x) (x & 0x02)
-
-static u8 st21nfca_se_get_bwi(struct nfc_hci_dev *hdev)
-{
-	int i;
-	u8 td;
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	/* Bits 8 to 5 of the first TB for T=1 encode BWI from zero to nine */
-	for (i = 1; i < ST21NFCA_ESE_MAX_LENGTH; i++) {
-		td = ST21NFCA_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
-		if (ST21NFCA_ATR_TA_PRESENT(td))
-			i++;
-		if (ST21NFCA_ATR_TB_PRESENT(td)) {
-			i++;
-			return info->se_info.atr[i] >> 4;
-		}
-	}
-	return ST21NFCA_ATR_DEFAULT_BWI;
-}
-
-static void st21nfca_se_get_atr(struct nfc_hci_dev *hdev)
-{
-	int r;
-	struct sk_buff *skb;
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	r = nfc_hci_get_param(hdev, ST21NFCA_APDU_READER_GATE,
-			ST21NFCA_PARAM_ATR, &skb);
-	if (r < 0)
-		return;
-
-	if (skb->len <= ST21NFCA_ESE_MAX_LENGTH) {
-		memcpy(info->se_info.atr, skb->data, skb->len);
-		info->se_info.wt_timeout =
-			ST21NFCA_BWI_TO_TIMEOUT(st21nfca_se_get_bwi(hdev));
-	}
-	kfree_skb(skb);
-}
-
-static int st21nfca_hci_control_se(struct nfc_hci_dev *hdev, u32 se_idx,
-				u8 state)
-{
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-	int r;
-	struct sk_buff *sk_host_list;
-	u8 se_event, host_id;
-
-	switch (se_idx) {
-	case NFC_HCI_UICC_HOST_ID:
-		se_event = (state == ST21NFCA_SE_MODE_ON ?
-					ST21NFCA_EVT_UICC_ACTIVATE :
-					ST21NFCA_EVT_UICC_DEACTIVATE);
-
-		info->se_info.count_pipes = 0;
-		info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_UICC;
-		break;
-	case ST21NFCA_ESE_HOST_ID:
-		se_event = (state == ST21NFCA_SE_MODE_ON ?
-					ST21NFCA_EVT_SE_ACTIVATE :
-					ST21NFCA_EVT_SE_DEACTIVATE);
-
-		info->se_info.count_pipes = 0;
-		info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_EMBEDDED;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/*
-	 * Wait for an EVT_HOT_PLUG in order to
-	 * retrieve a relevant host list.
-	 */
-	reinit_completion(&info->se_info.req_completion);
-	r = nfc_hci_send_event(hdev, ST21NFCA_DEVICE_MGNT_GATE, se_event,
-			       NULL, 0);
-	if (r < 0)
-		return r;
-
-	mod_timer(&info->se_info.se_active_timer, jiffies +
-		msecs_to_jiffies(ST21NFCA_SE_TO_HOT_PLUG));
-	info->se_info.se_active = true;
-
-	/* Ignore return value and check in any case the host_list */
-	wait_for_completion_interruptible(&info->se_info.req_completion);
-
-	r = nfc_hci_get_param(hdev, NFC_HCI_ADMIN_GATE,
-			NFC_HCI_ADMIN_HOST_LIST,
-			&sk_host_list);
-	if (r < 0)
-		return r;
-
-	host_id = sk_host_list->data[sk_host_list->len - 1];
-	kfree_skb(sk_host_list);
-
-	if (state == ST21NFCA_SE_MODE_ON && host_id == se_idx)
-		return se_idx;
-	else if (state == ST21NFCA_SE_MODE_OFF && host_id != se_idx)
-		return se_idx;
-
-	return -1;
-}
-
-int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev)
-{
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-	int se_count = 0;
-
-	if (info->se_status->is_uicc_present) {
-		nfc_add_se(hdev->ndev, NFC_HCI_UICC_HOST_ID, NFC_SE_UICC);
-		se_count++;
-	}
-
-	if (info->se_status->is_ese_present) {
-		nfc_add_se(hdev->ndev, ST21NFCA_ESE_HOST_ID, NFC_SE_EMBEDDED);
-		se_count++;
-	}
-
-	return !se_count;
-}
-EXPORT_SYMBOL(st21nfca_hci_discover_se);
-
-int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx)
-{
-	int r;
-
-	/*
-	 * According to upper layer, se_idx == NFC_SE_UICC when
-	 * info->se_status->is_uicc_enable is true should never happen.
-	 * Same for eSE.
-	 */
-	r = st21nfca_hci_control_se(hdev, se_idx, ST21NFCA_SE_MODE_ON);
-
-	if (r == ST21NFCA_ESE_HOST_ID) {
-		st21nfca_se_get_atr(hdev);
-		r = nfc_hci_send_event(hdev, ST21NFCA_APDU_READER_GATE,
-				ST21NFCA_EVT_SE_SOFT_RESET, NULL, 0);
-		if (r < 0)
-			return r;
-	} else if (r < 0) {
-		/*
-		 * The activation tentative failed, the secure element
-		 * is not connected. Remove from the list.
-		 */
-		nfc_remove_se(hdev->ndev, se_idx);
-		return r;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(st21nfca_hci_enable_se);
-
-int st21nfca_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx)
-{
-	int r;
-
-	/*
-	 * According to upper layer, se_idx == NFC_SE_UICC when
-	 * info->se_status->is_uicc_enable is true should never happen
-	 * Same for eSE.
-	 */
-	r = st21nfca_hci_control_se(hdev, se_idx, ST21NFCA_SE_MODE_OFF);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-EXPORT_SYMBOL(st21nfca_hci_disable_se);
-
-int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
-			u8 *apdu, size_t apdu_length,
-			se_io_cb_t cb, void *cb_context)
-{
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	pr_debug("se_io %x\n", se_idx);
-
-	switch (se_idx) {
-	case ST21NFCA_ESE_HOST_ID:
-		info->se_info.cb = cb;
-		info->se_info.cb_context = cb_context;
-		mod_timer(&info->se_info.bwi_timer, jiffies +
-			  msecs_to_jiffies(info->se_info.wt_timeout));
-		info->se_info.bwi_active = true;
-		return nfc_hci_send_event(hdev, ST21NFCA_APDU_READER_GATE,
-					ST21NFCA_EVT_TRANSMIT_DATA,
-					apdu, apdu_length);
-	default:
-		return -ENODEV;
-	}
-}
-EXPORT_SYMBOL(st21nfca_hci_se_io);
-
-static void st21nfca_se_wt_timeout(unsigned long data)
-{
-	/*
-	 * No answer from the secure element
-	 * within the defined timeout.
-	 * Let's send a reset request as recovery procedure.
-	 * According to the situation, we first try to send a software reset
-	 * to the secure element. If the next command is still not
-	 * answering in time, we send to the CLF a secure element hardware
-	 * reset request.
-	 */
-	/* hardware reset managed through VCC_UICC_OUT power supply */
-	u8 param = 0x01;
-	struct st21nfca_hci_info *info = (struct st21nfca_hci_info *) data;
-
-	pr_debug("\n");
-
-	info->se_info.bwi_active = false;
-
-	if (!info->se_info.xch_error) {
-		info->se_info.xch_error = true;
-		nfc_hci_send_event(info->hdev, ST21NFCA_APDU_READER_GATE,
-				ST21NFCA_EVT_SE_SOFT_RESET, NULL, 0);
-	} else {
-		info->se_info.xch_error = false;
-		nfc_hci_send_event(info->hdev, ST21NFCA_DEVICE_MGNT_GATE,
-				ST21NFCA_EVT_SE_HARD_RESET, &param, 1);
-	}
-	info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
-}
-
-static void st21nfca_se_activation_timeout(unsigned long data)
-{
-	struct st21nfca_hci_info *info = (struct st21nfca_hci_info *) data;
-
-	pr_debug("\n");
-
-	info->se_info.se_active = false;
-
-	complete(&info->se_info.req_completion);
-}
-
-/*
- * Returns:
- * <= 0: driver handled the event, skb consumed
- *    1: driver does not handle the event, please do standard processing
- */
-int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
-				u8 event, struct sk_buff *skb)
-{
-	int r = 0;
-	struct device *dev = &hdev->ndev->dev;
-	struct nfc_evt_transaction *transaction;
-
-	pr_debug("connectivity gate event: %x\n", event);
-
-	switch (event) {
-	case ST21NFCA_EVT_CONNECTIVITY:
-		break;
-	case ST21NFCA_EVT_TRANSACTION:
-		/*
-		 * According to specification etsi 102 622
-		 * 11.2.2.4 EVT_TRANSACTION Table 52
-		 * Description	Tag	Length
-		 * AID		81	5 to 16
-		 * PARAMETERS	82	0 to 255
-		 */
-		if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
-		    skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
-			return -EPROTO;
-
-		transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
-						   skb->len - 2, GFP_KERNEL);
-
-		transaction->aid_len = skb->data[1];
-		memcpy(transaction->aid, &skb->data[2],
-		       transaction->aid_len);
-
-		/* Check next byte is PARAMETERS tag (82) */
-		if (skb->data[transaction->aid_len + 2] !=
-		    NFC_EVT_TRANSACTION_PARAMS_TAG)
-			return -EPROTO;
-
-		transaction->params_len = skb->data[transaction->aid_len + 3];
-		memcpy(transaction->params, skb->data +
-		       transaction->aid_len + 4, transaction->params_len);
-
-		r = nfc_se_transaction(hdev->ndev, host, transaction);
-		break;
-	default:
-		return 1;
-	}
-	kfree_skb(skb);
-	return r;
-}
-EXPORT_SYMBOL(st21nfca_connectivity_event_received);
-
-int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
-					u8 event, struct sk_buff *skb)
-{
-	int r = 0;
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	pr_debug("apdu reader gate event: %x\n", event);
-
-	switch (event) {
-	case ST21NFCA_EVT_TRANSMIT_DATA:
-		del_timer_sync(&info->se_info.bwi_timer);
-		info->se_info.bwi_active = false;
-		r = nfc_hci_send_event(hdev, ST21NFCA_DEVICE_MGNT_GATE,
-				ST21NFCA_EVT_SE_END_OF_APDU_TRANSFER, NULL, 0);
-		if (r < 0)
-			goto exit;
-
-		info->se_info.cb(info->se_info.cb_context,
-			skb->data, skb->len, 0);
-		break;
-	case ST21NFCA_EVT_WTX_REQUEST:
-		mod_timer(&info->se_info.bwi_timer, jiffies +
-				msecs_to_jiffies(info->se_info.wt_timeout));
-		break;
-	}
-
-exit:
-	kfree_skb(skb);
-	return r;
-}
-EXPORT_SYMBOL(st21nfca_apdu_reader_event_received);
-
-void st21nfca_se_init(struct nfc_hci_dev *hdev)
-{
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	init_completion(&info->se_info.req_completion);
-	/* initialize timers */
-	init_timer(&info->se_info.bwi_timer);
-	info->se_info.bwi_timer.data = (unsigned long)info;
-	info->se_info.bwi_timer.function = st21nfca_se_wt_timeout;
-	info->se_info.bwi_active = false;
-
-	init_timer(&info->se_info.se_active_timer);
-	info->se_info.se_active_timer.data = (unsigned long)info;
-	info->se_info.se_active_timer.function = st21nfca_se_activation_timeout;
-	info->se_info.se_active = false;
-
-	info->se_info.count_pipes = 0;
-	info->se_info.expected_pipes = 0;
-
-	info->se_info.xch_error = false;
-
-	info->se_info.wt_timeout =
-			ST21NFCA_BWI_TO_TIMEOUT(ST21NFCA_ATR_DEFAULT_BWI);
-}
-EXPORT_SYMBOL(st21nfca_se_init);
-
-void st21nfca_se_deinit(struct nfc_hci_dev *hdev)
-{
-	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
-	if (info->se_info.bwi_active)
-		del_timer_sync(&info->se_info.bwi_timer);
-	if (info->se_info.se_active)
-		del_timer_sync(&info->se_info.se_active_timer);
-
-	info->se_info.bwi_active = false;
-	info->se_info.se_active = false;
-}
-EXPORT_SYMBOL(st21nfca_se_deinit);