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/*
* NFC Digital Protocol stack
* Copyright (c) 2013, Intel Corporation.
*
* 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 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.
*
*/
#include <linux/module.h>
#include "digital.h"
static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
__u32 tm_protocols)
{
return -EOPNOTSUPP;
}
static void digital_stop_poll(struct nfc_dev *nfc_dev)
{
}
static int digital_dev_up(struct nfc_dev *nfc_dev)
{
return -EOPNOTSUPP;
}
static int digital_dev_down(struct nfc_dev *nfc_dev)
{
return -EOPNOTSUPP;
}
static int digital_dep_link_up(struct nfc_dev *nfc_dev,
struct nfc_target *target,
__u8 comm_mode, __u8 *gb, size_t gb_len)
{
return -EOPNOTSUPP;
}
static int digital_dep_link_down(struct nfc_dev *nfc_dev)
{
return -EOPNOTSUPP;
}
static int digital_activate_target(struct nfc_dev *nfc_dev,
struct nfc_target *target, __u32 protocol)
{
return -EOPNOTSUPP;
}
static void digital_deactivate_target(struct nfc_dev *nfc_dev,
struct nfc_target *target)
{
}
static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
{
return -EOPNOTSUPP;
}
static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
struct sk_buff *skb, data_exchange_cb_t cb,
void *cb_context)
{
return -EOPNOTSUPP;
}
static struct nfc_ops digital_nfc_ops = {
.dev_up = digital_dev_up,
.dev_down = digital_dev_down,
.start_poll = digital_start_poll,
.stop_poll = digital_stop_poll,
.dep_link_up = digital_dep_link_up,
.dep_link_down = digital_dep_link_down,
.activate_target = digital_activate_target,
.deactivate_target = digital_deactivate_target,
.tm_send = digital_tg_send,
.im_transceive = digital_in_send,
};
struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
__u32 supported_protocols,
__u32 driver_capabilities,
int tx_headroom, int tx_tailroom)
{
struct nfc_digital_dev *ddev;
if (!ops->in_configure_hw || !ops->in_send_cmd || !ops->tg_listen ||
!ops->tg_configure_hw || !ops->tg_send_cmd || !ops->abort_cmd ||
!ops->switch_rf)
return NULL;
ddev = kzalloc(sizeof(struct nfc_digital_dev), GFP_KERNEL);
if (!ddev) {
PR_ERR("kzalloc failed");
return NULL;
}
ddev->driver_capabilities = driver_capabilities;
ddev->ops = ops;
ddev->tx_headroom = tx_headroom;
ddev->tx_tailroom = tx_tailroom;
ddev->nfc_dev = nfc_allocate_device(&digital_nfc_ops, ddev->protocols,
ddev->tx_headroom,
ddev->tx_tailroom);
if (!ddev->nfc_dev) {
PR_ERR("nfc_allocate_device failed");
goto free_dev;
}
nfc_set_drvdata(ddev->nfc_dev, ddev);
return ddev;
free_dev:
kfree(ddev);
return NULL;
}
EXPORT_SYMBOL(nfc_digital_allocate_device);
void nfc_digital_free_device(struct nfc_digital_dev *ddev)
{
nfc_free_device(ddev->nfc_dev);
kfree(ddev);
}
EXPORT_SYMBOL(nfc_digital_free_device);
int nfc_digital_register_device(struct nfc_digital_dev *ddev)
{
return nfc_register_device(ddev->nfc_dev);
}
EXPORT_SYMBOL(nfc_digital_register_device);
void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
{
nfc_unregister_device(ddev->nfc_dev);
}
EXPORT_SYMBOL(nfc_digital_unregister_device);
MODULE_LICENSE("GPL");
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