mirror of https://gitee.com/openkylin/linux.git
NFC: nfcmrvl: Initial commit for Marvell NFC driver
This patch adds NFC support for Marvell 8897 NFC-over-USB chipset. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Amitkumar Karwar
Samuel Ortiz
parent
22c15bf30b
commit
f26e30cc6b
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@ -58,5 +58,6 @@ config NFC_PORT100
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source "drivers/nfc/pn544/Kconfig"
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source "drivers/nfc/microread/Kconfig"
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source "drivers/nfc/nfcmrvl/Kconfig"
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endmenu
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@ -9,5 +9,6 @@ obj-$(CONFIG_NFC_WILINK) += nfcwilink.o
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obj-$(CONFIG_NFC_MEI_PHY) += mei_phy.o
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obj-$(CONFIG_NFC_SIM) += nfcsim.o
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obj-$(CONFIG_NFC_PORT100) += port100.o
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obj-$(CONFIG_NFC_MRVL) += nfcmrvl/
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ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
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@ -0,0 +1,23 @@
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config NFC_MRVL
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tristate "Marvell NFC driver support"
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depends on NFC_NCI
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help
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The core driver to support Marvell NFC devices.
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This driver is required if you want to support
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Marvell NFC device 8897.
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Say Y here to compile Marvell NFC driver into the kernel or
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say M to compile it as module.
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config NFC_MRVL_USB
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tristate "Marvell NFC-over-USB driver"
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depends on NFC_MRVL && USB
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help
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Marvell NFC-over-USB driver.
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This driver provides support for Marvell NFC-over-USB devices:
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8897.
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Say Y here to compile support for Marvell NFC-over-USB driver
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into the kernel or say M to compile it as module.
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@ -0,0 +1,9 @@
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#
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# Makefile for NFCMRVL NCI based NFC driver
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#
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nfcmrvl-y += main.o
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obj-$(CONFIG_NFC_MRVL) += nfcmrvl.o
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nfcmrvl_usb-y += usb.o
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obj-$(CONFIG_NFC_MRVL_USB) += nfcmrvl_usb.o
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@ -0,0 +1,145 @@
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/*
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* Marvell NFC driver: major functions
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*
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* Copyright (C) 2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available on the worldwide web at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include <linux/module.h>
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#include <linux/nfc.h>
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#include <net/nfc/nci.h>
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#include <net/nfc/nci_core.h>
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#include "nfcmrvl.h"
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#define VERSION "1.0"
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static int nfcmrvl_nci_open(struct nci_dev *ndev)
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{
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struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
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int err;
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if (test_and_set_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
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return 0;
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err = priv->if_ops->nci_open(priv);
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if (err)
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clear_bit(NFCMRVL_NCI_RUNNING, &priv->flags);
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return err;
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}
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static int nfcmrvl_nci_close(struct nci_dev *ndev)
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{
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struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
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if (!test_and_clear_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
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return 0;
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priv->if_ops->nci_close(priv);
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return 0;
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}
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static int nfcmrvl_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
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{
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struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
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nfc_info(priv->dev, "send entry, len %d\n", skb->len);
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skb->dev = (void *)ndev;
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if (!test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
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return -EBUSY;
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return priv->if_ops->nci_send(priv, skb);
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}
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static struct nci_ops nfcmrvl_nci_ops = {
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.open = nfcmrvl_nci_open,
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.close = nfcmrvl_nci_close,
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.send = nfcmrvl_nci_send,
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};
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struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
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struct nfcmrvl_if_ops *ops,
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struct device *dev)
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{
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struct nfcmrvl_private *priv;
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int rc;
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u32 protocols;
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priv = kzalloc(sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return ERR_PTR(-ENOMEM);
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priv->drv_data = drv_data;
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priv->if_ops = ops;
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priv->dev = dev;
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protocols = NFC_PROTO_JEWEL_MASK
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| NFC_PROTO_MIFARE_MASK | NFC_PROTO_FELICA_MASK
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| NFC_PROTO_ISO14443_MASK
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| NFC_PROTO_ISO14443_B_MASK
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| NFC_PROTO_NFC_DEP_MASK;
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priv->ndev = nci_allocate_device(&nfcmrvl_nci_ops, protocols, 0, 0);
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if (!priv->ndev) {
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nfc_err(dev, "nci_allocate_device failed");
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return ERR_PTR(-ENOMEM);
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}
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nci_set_drvdata(priv->ndev, priv);
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rc = nci_register_device(priv->ndev);
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if (rc) {
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nfc_err(dev, "nci_register_device failed %d", rc);
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nci_free_device(priv->ndev);
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return ERR_PTR(rc);
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}
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nfc_info(dev, "registered with nci successfully\n");
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return priv;
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}
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EXPORT_SYMBOL_GPL(nfcmrvl_nci_register_dev);
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void nfcmrvl_nci_unregister_dev(struct nfcmrvl_private *priv)
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{
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struct nci_dev *ndev = priv->ndev;
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nci_unregister_device(ndev);
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nci_free_device(ndev);
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kfree(priv);
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}
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EXPORT_SYMBOL_GPL(nfcmrvl_nci_unregister_dev);
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int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, void *data, int count)
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{
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struct sk_buff *skb;
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skb = nci_skb_alloc(priv->ndev, count, GFP_ATOMIC);
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if (!skb)
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return -ENOMEM;
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memcpy(skb_put(skb, count), data, count);
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nci_recv_frame(priv->ndev, skb);
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return count;
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}
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EXPORT_SYMBOL_GPL(nfcmrvl_nci_recv_frame);
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MODULE_AUTHOR("Marvell International Ltd.");
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MODULE_DESCRIPTION("Marvell NFC driver ver " VERSION);
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MODULE_VERSION(VERSION);
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MODULE_LICENSE("GPL v2");
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@ -0,0 +1,42 @@
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/**
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* Marvell NFC driver
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*
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* Copyright (C) 2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available on the worldwide web at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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**/
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/* Define private flags: */
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#define NFCMRVL_NCI_RUNNING 1
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#define NFCMRVL_NCI_MAX_EVENT_SIZE 260
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struct nfcmrvl_private {
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struct nci_dev *ndev;
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unsigned long flags;
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void *drv_data;
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struct device *dev;
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struct nfcmrvl_if_ops *if_ops;
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};
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struct nfcmrvl_if_ops {
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int (*nci_open) (struct nfcmrvl_private *priv);
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int (*nci_close) (struct nfcmrvl_private *priv);
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int (*nci_send) (struct nfcmrvl_private *priv, struct sk_buff *skb);
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};
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void nfcmrvl_nci_unregister_dev(struct nfcmrvl_private *priv);
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int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, void *data, int count);
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struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
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struct nfcmrvl_if_ops *ops,
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struct device *dev);
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@ -0,0 +1,459 @@
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/**
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* Marvell NFC-over-USB driver: USB interface related functions
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*
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* Copyright (C) 2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available on the worldwide web at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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**/
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/nfc.h>
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#include <net/nfc/nci.h>
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#include <net/nfc/nci_core.h>
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#include "nfcmrvl.h"
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#define VERSION "1.0"
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static struct usb_device_id nfcmrvl_table[] = {
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{ USB_DEVICE_INTERFACE_CLASS(0x1286, 0x2046, 0xff) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, nfcmrvl_table);
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#define NFCMRVL_USB_BULK_RUNNING 1
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#define NFCMRVL_USB_SUSPENDING 2
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struct nfcmrvl_usb_drv_data {
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struct usb_device *udev;
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struct usb_interface *intf;
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unsigned long flags;
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struct work_struct waker;
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struct usb_anchor tx_anchor;
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struct usb_anchor bulk_anchor;
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struct usb_anchor deferred;
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int tx_in_flight;
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/* protects tx_in_flight */
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spinlock_t txlock;
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struct usb_endpoint_descriptor *bulk_tx_ep;
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struct usb_endpoint_descriptor *bulk_rx_ep;
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int suspend_count;
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struct nfcmrvl_private *priv;
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};
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static int nfcmrvl_inc_tx(struct nfcmrvl_usb_drv_data *drv_data)
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{
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unsigned long flags;
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int rv;
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spin_lock_irqsave(&drv_data->txlock, flags);
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rv = test_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);
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if (!rv)
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drv_data->tx_in_flight++;
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spin_unlock_irqrestore(&drv_data->txlock, flags);
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return rv;
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}
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static void nfcmrvl_bulk_complete(struct urb *urb)
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{
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struct nfcmrvl_usb_drv_data *drv_data = urb->context;
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int err;
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dev_dbg(&drv_data->udev->dev, "urb %p status %d count %d",
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urb, urb->status, urb->actual_length);
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if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))
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return;
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if (!urb->status) {
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if (nfcmrvl_nci_recv_frame(drv_data->priv, urb->transfer_buffer,
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urb->actual_length) < 0)
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nfc_err(&drv_data->udev->dev, "corrupted Rx packet");
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}
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if (!test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags))
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return;
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usb_anchor_urb(urb, &drv_data->bulk_anchor);
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usb_mark_last_busy(drv_data->udev);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err) {
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/* -EPERM: urb is being killed;
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* -ENODEV: device got disconnected
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*/
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if (err != -EPERM && err != -ENODEV)
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nfc_err(&drv_data->udev->dev,
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"urb %p failed to resubmit (%d)", urb, -err);
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usb_unanchor_urb(urb);
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}
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}
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static int
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nfcmrvl_submit_bulk_urb(struct nfcmrvl_usb_drv_data *drv_data, gfp_t mem_flags)
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{
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struct urb *urb;
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unsigned char *buf;
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unsigned int pipe;
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int err, size = NFCMRVL_NCI_MAX_EVENT_SIZE;
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if (!drv_data->bulk_rx_ep)
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return -ENODEV;
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urb = usb_alloc_urb(0, mem_flags);
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if (!urb)
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return -ENOMEM;
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buf = kmalloc(size, mem_flags);
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if (!buf) {
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usb_free_urb(urb);
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return -ENOMEM;
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}
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pipe = usb_rcvbulkpipe(drv_data->udev,
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drv_data->bulk_rx_ep->bEndpointAddress);
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usb_fill_bulk_urb(urb, drv_data->udev, pipe, buf, size,
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nfcmrvl_bulk_complete, drv_data);
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urb->transfer_flags |= URB_FREE_BUFFER;
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usb_mark_last_busy(drv_data->udev);
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usb_anchor_urb(urb, &drv_data->bulk_anchor);
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err = usb_submit_urb(urb, mem_flags);
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if (err) {
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if (err != -EPERM && err != -ENODEV)
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nfc_err(&drv_data->udev->dev,
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"urb %p submission failed (%d)", urb, -err);
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usb_unanchor_urb(urb);
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}
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usb_free_urb(urb);
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return err;
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}
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static void nfcmrvl_tx_complete(struct urb *urb)
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{
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struct sk_buff *skb = urb->context;
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struct nci_dev *ndev = (struct nci_dev *)skb->dev;
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struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
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struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;
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nfc_info(priv->dev, "urb %p status %d count %d",
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urb, urb->status, urb->actual_length);
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spin_lock(&drv_data->txlock);
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drv_data->tx_in_flight--;
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spin_unlock(&drv_data->txlock);
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|
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kfree(urb->setup_packet);
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kfree_skb(skb);
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}
|
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|
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static int nfcmrvl_usb_nci_open(struct nfcmrvl_private *priv)
|
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{
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struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;
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int err;
|
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err = usb_autopm_get_interface(drv_data->intf);
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if (err)
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return err;
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drv_data->intf->needs_remote_wakeup = 1;
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err = nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);
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if (err)
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goto failed;
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set_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);
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nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);
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usb_autopm_put_interface(drv_data->intf);
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return 0;
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failed:
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usb_autopm_put_interface(drv_data->intf);
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return err;
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}
|
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static void nfcmrvl_usb_stop_traffic(struct nfcmrvl_usb_drv_data *drv_data)
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{
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usb_kill_anchored_urbs(&drv_data->bulk_anchor);
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}
|
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|
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static int nfcmrvl_usb_nci_close(struct nfcmrvl_private *priv)
|
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{
|
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struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;
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int err;
|
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|
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cancel_work_sync(&drv_data->waker);
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clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);
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nfcmrvl_usb_stop_traffic(drv_data);
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usb_kill_anchored_urbs(&drv_data->tx_anchor);
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err = usb_autopm_get_interface(drv_data->intf);
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if (err)
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goto failed;
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drv_data->intf->needs_remote_wakeup = 0;
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usb_autopm_put_interface(drv_data->intf);
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failed:
|
||||
usb_scuttle_anchored_urbs(&drv_data->deferred);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nfcmrvl_usb_nci_send(struct nfcmrvl_private *priv,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;
|
||||
struct urb *urb;
|
||||
unsigned int pipe;
|
||||
int err;
|
||||
|
||||
if (!drv_data->bulk_tx_ep)
|
||||
return -ENODEV;
|
||||
|
||||
urb = usb_alloc_urb(0, GFP_ATOMIC);
|
||||
if (!urb)
|
||||
return -ENOMEM;
|
||||
|
||||
pipe = usb_sndbulkpipe(drv_data->udev,
|
||||
drv_data->bulk_tx_ep->bEndpointAddress);
|
||||
|
||||
usb_fill_bulk_urb(urb, drv_data->udev, pipe, skb->data, skb->len,
|
||||
nfcmrvl_tx_complete, skb);
|
||||
|
||||
err = nfcmrvl_inc_tx(drv_data);
|
||||
if (err) {
|
||||
usb_anchor_urb(urb, &drv_data->deferred);
|
||||
schedule_work(&drv_data->waker);
|
||||
err = 0;
|
||||
goto done;
|
||||
}
|
||||
|
||||
usb_anchor_urb(urb, &drv_data->tx_anchor);
|
||||
|
||||
err = usb_submit_urb(urb, GFP_ATOMIC);
|
||||
if (err) {
|
||||
if (err != -EPERM && err != -ENODEV)
|
||||
nfc_err(&drv_data->udev->dev,
|
||||
"urb %p submission failed (%d)", urb, -err);
|
||||
kfree(urb->setup_packet);
|
||||
usb_unanchor_urb(urb);
|
||||
} else {
|
||||
usb_mark_last_busy(drv_data->udev);
|
||||
}
|
||||
|
||||
done:
|
||||
usb_free_urb(urb);
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct nfcmrvl_if_ops usb_ops = {
|
||||
.nci_open = nfcmrvl_usb_nci_open,
|
||||
.nci_close = nfcmrvl_usb_nci_close,
|
||||
.nci_send = nfcmrvl_usb_nci_send,
|
||||
};
|
||||
|
||||
static void nfcmrvl_waker(struct work_struct *work)
|
||||
{
|
||||
struct nfcmrvl_usb_drv_data *drv_data =
|
||||
container_of(work, struct nfcmrvl_usb_drv_data, waker);
|
||||
int err;
|
||||
|
||||
err = usb_autopm_get_interface(drv_data->intf);
|
||||
if (err)
|
||||
return;
|
||||
|
||||
usb_autopm_put_interface(drv_data->intf);
|
||||
}
|
||||
|
||||
static int nfcmrvl_probe(struct usb_interface *intf,
|
||||
const struct usb_device_id *id)
|
||||
{
|
||||
struct usb_endpoint_descriptor *ep_desc;
|
||||
struct nfcmrvl_usb_drv_data *drv_data;
|
||||
struct nfcmrvl_private *priv;
|
||||
int i;
|
||||
struct usb_device *udev = interface_to_usbdev(intf);
|
||||
|
||||
nfc_info(&udev->dev, "intf %p id %p", intf, id);
|
||||
|
||||
drv_data = devm_kzalloc(&intf->dev, sizeof(*drv_data), GFP_KERNEL);
|
||||
if (!drv_data)
|
||||
return -ENOMEM;
|
||||
|
||||
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
|
||||
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
|
||||
|
||||
if (!drv_data->bulk_tx_ep &&
|
||||
usb_endpoint_is_bulk_out(ep_desc)) {
|
||||
drv_data->bulk_tx_ep = ep_desc;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!drv_data->bulk_rx_ep &&
|
||||
usb_endpoint_is_bulk_in(ep_desc)) {
|
||||
drv_data->bulk_rx_ep = ep_desc;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (!drv_data->bulk_tx_ep || !drv_data->bulk_rx_ep)
|
||||
return -ENODEV;
|
||||
|
||||
drv_data->udev = udev;
|
||||
drv_data->intf = intf;
|
||||
|
||||
INIT_WORK(&drv_data->waker, nfcmrvl_waker);
|
||||
spin_lock_init(&drv_data->txlock);
|
||||
|
||||
init_usb_anchor(&drv_data->tx_anchor);
|
||||
init_usb_anchor(&drv_data->bulk_anchor);
|
||||
init_usb_anchor(&drv_data->deferred);
|
||||
|
||||
priv = nfcmrvl_nci_register_dev(drv_data, &usb_ops,
|
||||
&drv_data->udev->dev);
|
||||
if (IS_ERR(priv))
|
||||
return PTR_ERR(priv);
|
||||
|
||||
drv_data->priv = priv;
|
||||
priv->dev = &drv_data->udev->dev;
|
||||
|
||||
usb_set_intfdata(intf, drv_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void nfcmrvl_disconnect(struct usb_interface *intf)
|
||||
{
|
||||
struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);
|
||||
|
||||
if (!drv_data)
|
||||
return;
|
||||
|
||||
nfc_info(&drv_data->udev->dev, "intf %p", intf);
|
||||
|
||||
nfcmrvl_nci_unregister_dev(drv_data->priv);
|
||||
|
||||
usb_set_intfdata(drv_data->intf, NULL);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int nfcmrvl_suspend(struct usb_interface *intf, pm_message_t message)
|
||||
{
|
||||
struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);
|
||||
|
||||
nfc_info(&drv_data->udev->dev, "intf %p", intf);
|
||||
|
||||
if (drv_data->suspend_count++)
|
||||
return 0;
|
||||
|
||||
spin_lock_irq(&drv_data->txlock);
|
||||
if (!(PMSG_IS_AUTO(message) && drv_data->tx_in_flight)) {
|
||||
set_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);
|
||||
spin_unlock_irq(&drv_data->txlock);
|
||||
} else {
|
||||
spin_unlock_irq(&drv_data->txlock);
|
||||
drv_data->suspend_count--;
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
nfcmrvl_usb_stop_traffic(drv_data);
|
||||
usb_kill_anchored_urbs(&drv_data->tx_anchor);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void nfcmrvl_play_deferred(struct nfcmrvl_usb_drv_data *drv_data)
|
||||
{
|
||||
struct urb *urb;
|
||||
int err;
|
||||
|
||||
while ((urb = usb_get_from_anchor(&drv_data->deferred))) {
|
||||
err = usb_submit_urb(urb, GFP_ATOMIC);
|
||||
if (err)
|
||||
break;
|
||||
|
||||
drv_data->tx_in_flight++;
|
||||
}
|
||||
usb_scuttle_anchored_urbs(&drv_data->deferred);
|
||||
}
|
||||
|
||||
static int nfcmrvl_resume(struct usb_interface *intf)
|
||||
{
|
||||
struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);
|
||||
int err = 0;
|
||||
|
||||
nfc_info(&drv_data->udev->dev, "intf %p", intf);
|
||||
|
||||
if (--drv_data->suspend_count)
|
||||
return 0;
|
||||
|
||||
if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))
|
||||
goto done;
|
||||
|
||||
if (test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags)) {
|
||||
err = nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);
|
||||
if (err) {
|
||||
clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);
|
||||
goto failed;
|
||||
}
|
||||
|
||||
nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);
|
||||
}
|
||||
|
||||
spin_lock_irq(&drv_data->txlock);
|
||||
nfcmrvl_play_deferred(drv_data);
|
||||
clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);
|
||||
spin_unlock_irq(&drv_data->txlock);
|
||||
|
||||
return 0;
|
||||
|
||||
failed:
|
||||
usb_scuttle_anchored_urbs(&drv_data->deferred);
|
||||
done:
|
||||
spin_lock_irq(&drv_data->txlock);
|
||||
clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);
|
||||
spin_unlock_irq(&drv_data->txlock);
|
||||
|
||||
return err;
|
||||
}
|
||||
#endif
|
||||
|
||||
static struct usb_driver nfcmrvl_usb_driver = {
|
||||
.name = "nfcmrvl",
|
||||
.probe = nfcmrvl_probe,
|
||||
.disconnect = nfcmrvl_disconnect,
|
||||
#ifdef CONFIG_PM
|
||||
.suspend = nfcmrvl_suspend,
|
||||
.resume = nfcmrvl_resume,
|
||||
.reset_resume = nfcmrvl_resume,
|
||||
#endif
|
||||
.id_table = nfcmrvl_table,
|
||||
.supports_autosuspend = 1,
|
||||
.disable_hub_initiated_lpm = 1,
|
||||
.soft_unbind = 1,
|
||||
};
|
||||
module_usb_driver(nfcmrvl_usb_driver);
|
||||
|
||||
MODULE_AUTHOR("Marvell International Ltd.");
|
||||
MODULE_DESCRIPTION("Marvell NFC-over-USB driver ver " VERSION);
|
||||
MODULE_VERSION(VERSION);
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue