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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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15203b4c79
Marvell nfc device provides support for external coexistance control. It allows Device Host to inhibit the NFCC from polling when required by asserting a GPIO pin. A second pin allows the DH to have feedback on the current NFCC state. The required configuration for this feature is done in setup handler. 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>
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/**
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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_EXT_COEX_ID 0xE0
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#define NFCMRVL_NOT_ALLOWED_ID 0xE1
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#define NFCMRVL_ACTIVE_ID 0xE2
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#define NFCMRVL_EXT_COEX_ENABLE 1
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#define NFCMRVL_GPIO_PIN_NFC_NOT_ALLOWED 0xA
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#define NFCMRVL_GPIO_PIN_NFC_ACTIVE 0xB
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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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