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alistair23-linux/drivers/nfc/st-nci/vendor_cmds.c
Thomas Gleixner 46fe777164 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 399 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 33 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081038.745679586@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:12 +02:00

468 lines
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Proprietary commands extension for STMicroelectronics NFC NCI Chip
*
* Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
*/
#include <net/genetlink.h>
#include <linux/module.h>
#include <linux/nfc.h>
#include <linux/delay.h>
#include <net/nfc/nci_core.h>
#include "st-nci.h"
#define ST_NCI_HCI_DM_GETDATA 0x10
#define ST_NCI_HCI_DM_PUTDATA 0x11
#define ST_NCI_HCI_DM_LOAD 0x12
#define ST_NCI_HCI_DM_GETINFO 0x13
#define ST_NCI_HCI_DM_FWUPD_START 0x14
#define ST_NCI_HCI_DM_FWUPD_STOP 0x15
#define ST_NCI_HCI_DM_UPDATE_AID 0x20
#define ST_NCI_HCI_DM_RESET 0x3e
#define ST_NCI_HCI_DM_FIELD_GENERATOR 0x32
#define ST_NCI_HCI_DM_VDC_MEASUREMENT_VALUE 0x33
#define ST_NCI_HCI_DM_VDC_VALUE_COMPARISON 0x34
#define ST_NCI_FACTORY_MODE_ON 1
#define ST_NCI_FACTORY_MODE_OFF 0
#define ST_NCI_EVT_POST_DATA 0x02
struct get_param_data {
u8 gate;
u8 data;
} __packed;
static int st_nci_factory_mode(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
struct st_nci_info *info = nci_get_drvdata(ndev);
if (data_len != 1)
return -EINVAL;
pr_debug("factory mode: %x\n", ((u8 *)data)[0]);
switch (((u8 *)data)[0]) {
case ST_NCI_FACTORY_MODE_ON:
test_and_set_bit(ST_NCI_FACTORY_MODE, &info->flags);
break;
case ST_NCI_FACTORY_MODE_OFF:
clear_bit(ST_NCI_FACTORY_MODE, &info->flags);
break;
default:
return -EINVAL;
}
return 0;
}
static int st_nci_hci_clear_all_pipes(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
return nci_hci_clear_all_pipes(ndev);
}
static int st_nci_hci_dm_put_data(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_PUTDATA, data,
data_len, NULL);
}
static int st_nci_hci_dm_update_aid(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_UPDATE_AID, data, data_len, NULL);
}
static int st_nci_hci_dm_get_info(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE, ST_NCI_HCI_DM_GETINFO,
data, data_len, &skb);
if (r)
goto exit;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
HCI_DM_GET_INFO, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
exit:
return r;
}
static int st_nci_hci_dm_get_data(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE, ST_NCI_HCI_DM_GETDATA,
data, data_len, &skb);
if (r)
goto exit;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
HCI_DM_GET_DATA, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
exit:
return r;
}
static int st_nci_hci_dm_fwupd_start(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct nci_dev *ndev = nfc_get_drvdata(dev);
dev->fw_download_in_progress = true;
r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_FWUPD_START, data, data_len, NULL);
if (r)
dev->fw_download_in_progress = false;
return r;
}
static int st_nci_hci_dm_fwupd_end(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_FWUPD_STOP, data, data_len, NULL);
}
static int st_nci_hci_dm_direct_load(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
if (dev->fw_download_in_progress) {
dev->fw_download_in_progress = false;
return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_LOAD, data, data_len, NULL);
}
return -EPROTO;
}
static int st_nci_hci_dm_reset(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_RESET, data, data_len, NULL);
msleep(200);
return 0;
}
static int st_nci_hci_get_param(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
struct get_param_data *param = (struct get_param_data *)data;
if (data_len < sizeof(struct get_param_data))
return -EPROTO;
r = nci_hci_get_param(ndev, param->gate, param->data, &skb);
if (r)
goto exit;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
HCI_GET_PARAM, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
exit:
return r;
}
static int st_nci_hci_dm_field_generator(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct nci_dev *ndev = nfc_get_drvdata(dev);
return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_FIELD_GENERATOR, data, data_len, NULL);
}
static int st_nci_hci_dm_vdc_measurement_value(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
if (data_len != 4)
return -EPROTO;
r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_VDC_MEASUREMENT_VALUE,
data, data_len, &skb);
if (r)
goto exit;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
HCI_DM_VDC_MEASUREMENT_VALUE, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
exit:
return r;
}
static int st_nci_hci_dm_vdc_value_comparison(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
if (data_len != 2)
return -EPROTO;
r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
ST_NCI_HCI_DM_VDC_VALUE_COMPARISON,
data, data_len, &skb);
if (r)
goto exit;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
HCI_DM_VDC_VALUE_COMPARISON, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
exit:
return r;
}
static int st_nci_loopback(struct nfc_dev *dev, void *data,
size_t data_len)
{
int r;
struct sk_buff *msg, *skb;
struct nci_dev *ndev = nfc_get_drvdata(dev);
if (data_len <= 0)
return -EPROTO;
r = nci_nfcc_loopback(ndev, data, data_len, &skb);
if (r < 0)
return r;
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
LOOPBACK, skb->len);
if (!msg) {
r = -ENOMEM;
goto free_skb;
}
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
kfree_skb(msg);
r = -ENOBUFS;
goto free_skb;
}
r = nfc_vendor_cmd_reply(msg);
free_skb:
kfree_skb(skb);
return r;
}
static int st_nci_manufacturer_specific(struct nfc_dev *dev, void *data,
size_t data_len)
{
struct sk_buff *msg;
struct nci_dev *ndev = nfc_get_drvdata(dev);
msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
MANUFACTURER_SPECIFIC,
sizeof(ndev->manufact_specific_info));
if (!msg)
return -ENOMEM;
if (nla_put(msg, NFC_ATTR_VENDOR_DATA, sizeof(ndev->manufact_specific_info),
&ndev->manufact_specific_info)) {
kfree_skb(msg);
return -ENOBUFS;
}
return nfc_vendor_cmd_reply(msg);
}
static struct nfc_vendor_cmd st_nci_vendor_cmds[] = {
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = FACTORY_MODE,
.doit = st_nci_factory_mode,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_CLEAR_ALL_PIPES,
.doit = st_nci_hci_clear_all_pipes,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_PUT_DATA,
.doit = st_nci_hci_dm_put_data,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_UPDATE_AID,
.doit = st_nci_hci_dm_update_aid,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_GET_INFO,
.doit = st_nci_hci_dm_get_info,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_GET_DATA,
.doit = st_nci_hci_dm_get_data,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_DIRECT_LOAD,
.doit = st_nci_hci_dm_direct_load,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_RESET,
.doit = st_nci_hci_dm_reset,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_GET_PARAM,
.doit = st_nci_hci_get_param,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_FIELD_GENERATOR,
.doit = st_nci_hci_dm_field_generator,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_FWUPD_START,
.doit = st_nci_hci_dm_fwupd_start,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_FWUPD_END,
.doit = st_nci_hci_dm_fwupd_end,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = LOOPBACK,
.doit = st_nci_loopback,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_VDC_MEASUREMENT_VALUE,
.doit = st_nci_hci_dm_vdc_measurement_value,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = HCI_DM_VDC_VALUE_COMPARISON,
.doit = st_nci_hci_dm_vdc_value_comparison,
},
{
.vendor_id = ST_NCI_VENDOR_OUI,
.subcmd = MANUFACTURER_SPECIFIC,
.doit = st_nci_manufacturer_specific,
},
};
int st_nci_vendor_cmds_init(struct nci_dev *ndev)
{
return nfc_set_vendor_cmds(ndev->nfc_dev, st_nci_vendor_cmds,
sizeof(st_nci_vendor_cmds));
}
EXPORT_SYMBOL(st_nci_vendor_cmds_init);
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