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ble_wiegand.c
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ble_wiegand.c
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/* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/* Attention!
* To maintain compliance with Nordic Semiconductor ASAs Bluetooth profile
* qualification listings, this section of source code must not be modified.
*/
#include "ble_wiegand.h"
#include <string.h>
#include "nordic_common.h"
#include "ble_l2cap.h"
#include "ble_srv_common.h"
#include "app_util.h"
#include "nrf_gpio.h"
#include "wiegand.h"
#define BLE_UUID_WIEGAND_SERVICE 0xABCD
/**@brief Function for handling the Connect event.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_ble_evt Event received from the BLE stack.
*/
static void on_connect(ble_wiegand_t * p_wiegand, ble_evt_t * p_ble_evt)
{
p_wiegand->conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
}
/**@brief Function for handling the Disconnect event.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_ble_evt Event received from the BLE stack.
*/
static void on_disconnect(ble_wiegand_t * p_wiegand, ble_evt_t * p_ble_evt)
{
UNUSED_PARAMETER(p_ble_evt);
p_wiegand->conn_handle = BLE_CONN_HANDLE_INVALID;
}
/**@brief Function for handling the Write event.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_ble_evt Event received from the BLE stack.
*/
static void on_write(ble_wiegand_t * p_wiegand, ble_evt_t * p_ble_evt)
{
uint8_t read_data[10];
uint16_t len;
ble_gatts_evt_write_t * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
if (p_evt_write->handle == p_wiegand->last_cards_handles.cccd_handle)
{
return;
}
if (p_evt_write->handle == p_wiegand->replay_handles.value_handle)
{
sd_ble_gatts_value_get(p_wiegand->replay_handles.value_handle, 0, &len,
read_data);
send_wiegand(read_data[0]);
return;
}
if (p_evt_write->handle == p_wiegand->send_data_handles.value_handle)
{
return;
}
if (p_evt_write->handle == p_wiegand->data_length_handles.value_handle)
{
return;
}
}
void ble_wiegand_on_ble_evt(ble_wiegand_t * p_wiegand, ble_evt_t * p_ble_evt)
{
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
on_connect(p_wiegand, p_ble_evt);
break;
case BLE_GAP_EVT_DISCONNECTED:
on_disconnect(p_wiegand, p_ble_evt);
break;
case BLE_GATTS_EVT_WRITE:
on_write(p_wiegand, p_ble_evt);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for reading most recently read cards
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_wiegand_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t last_cards_char_add(ble_wiegand_t * p_wiegand,
const ble_wiegand_init_t * p_wiegand_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_WIEGAND_LAST_CARDS);
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_wiegand_init->wiegand_last_cards_attr_md.read_perm;
attr_md.write_perm = p_wiegand_init->wiegand_last_cards_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = 0;
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_MAX_TX_LEN;
attr_char_value.p_value = 0;
return sd_ble_gatts_characteristic_add(p_wiegand->service_handle,
&char_md,
&attr_char_value,
&p_wiegand->last_cards_handles);
}
/**@brief Function for adding the Body Sensor Location characteristic.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_wiegand_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t replay_char_add(ble_wiegand_t * p_wiegand, const ble_wiegand_init_t * p_wiegand_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.write = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_WIEGAND_REPLAY);
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_wiegand_init->wiegand_replay_attr_md.read_perm;
attr_md.write_perm = p_wiegand_init->wiegand_replay_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 0;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof (uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = sizeof (uint8_t);
attr_char_value.p_value = 0;
return sd_ble_gatts_characteristic_add(p_wiegand->service_handle,
&char_md,
&attr_char_value,
&p_wiegand->replay_handles);
}
/**@brief Function for adding the Body Sensor Location characteristic.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_wiegand_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t send_data_char_add(ble_wiegand_t * p_wiegand,
const ble_wiegand_init_t * p_wiegand_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.write = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_WIEGAND_SEND_DATA);
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_wiegand_init->wiegand_send_data_attr_md.read_perm;
attr_md.write_perm = p_wiegand_init->wiegand_send_data_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 0;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = BLE_UUID_WIEGAND_SEND_DATA_LEN;
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_UUID_WIEGAND_SEND_DATA_LEN;
attr_char_value.p_value = 0;
return sd_ble_gatts_characteristic_add(p_wiegand->service_handle,
&char_md,
&attr_char_value,
&p_wiegand->send_data_handles);
}
/**@brief Function for adding the Body Sensor Location characteristic.
*
* @param[in] p_wiegand Heart Rate Service structure.
* @param[in] p_wiegand_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t data_length_char_add(ble_wiegand_t * p_wiegand, const ble_wiegand_init_t * p_wiegand_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
char_md.char_props.write = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_WIEGAND_DATA_LENGTH);
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_wiegand_init->wiegand_data_length_attr_md.read_perm;
attr_md.write_perm = p_wiegand_init->wiegand_data_length_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 0;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof (uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = sizeof (uint8_t);
attr_char_value.p_value = 0;
return sd_ble_gatts_characteristic_add(p_wiegand->service_handle,
&char_md,
&attr_char_value,
&p_wiegand->data_length_handles);
}
uint32_t ble_wiegand_init(ble_wiegand_t * p_wiegand, const ble_wiegand_init_t * p_wiegand_init)
{
uint32_t err_code;
ble_uuid_t ble_uuid;
// Initialize service structure
p_wiegand->evt_handler = p_wiegand_init->evt_handler;
p_wiegand->conn_handle = BLE_CONN_HANDLE_INVALID;
// Add service
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_WIEGAND_SERVICE);
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&ble_uuid,
&p_wiegand->service_handle);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Add last_card characteristic
err_code = last_cards_char_add(p_wiegand, p_wiegand_init);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Add replay characteristic
err_code = replay_char_add(p_wiegand, p_wiegand_init);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Add send_data characteristic
err_code = send_data_char_add(p_wiegand, p_wiegand_init);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Add data_length characteristic
err_code = data_length_char_add(p_wiegand, p_wiegand_init);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
return NRF_SUCCESS;
}
uint32_t ble_wiegand_sensor_contact_supported_set(ble_wiegand_t * p_wiegand, bool is_sensor_contact_supported)
{
// Check if we are connected to peer
if (p_wiegand->conn_handle == BLE_CONN_HANDLE_INVALID)
{
p_wiegand->is_sensor_contact_supported = is_sensor_contact_supported;
return NRF_SUCCESS;
}
else
{
return NRF_ERROR_INVALID_STATE;
}
}
void ble_wiegand_sensor_contact_detected_update(ble_wiegand_t * p_wiegand, bool is_sensor_contact_detected)
{
p_wiegand->is_sensor_contact_detected = is_sensor_contact_detected;
}
uint32_t ble_wiegand_body_sensor_location_set(ble_wiegand_t * p_wiegand, uint8_t body_sensor_location)
{
uint16_t len = sizeof(uint8_t);
return sd_ble_gatts_value_set(p_wiegand->replay_handles.value_handle, 0, &len, &body_sensor_location);
}
uint32_t ble_wiegand_last_cards_set(ble_wiegand_t * p_wiegand, uint8_t *cards, uint16_t len)
{
return sd_ble_gatts_value_set(p_wiegand->last_cards_handles.value_handle,
0, &len, cards);
}