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ble_dis.c
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ble_dis.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 ASA’s Bluetooth profile
* qualification listings, this section of source code must not be modified.
*/
#include "ble_dis.h"
#include <stdlib.h>
#include <string.h>
#include "app_error.h"
#include "ble_gatts.h"
#include "nordic_common.h"
#include "ble_srv_common.h"
#include "app_util.h"
#define BLE_DIS_SYS_ID_LEN 8 /**< Length of System ID Characteristic Value. */
#define BLE_DIS_PNP_ID_LEN 7 /**< Length of Pnp ID Characteristic Value. */
static uint16_t service_handle;
static ble_gatts_char_handles_t manufact_name_handles;
static ble_gatts_char_handles_t model_num_handles;
static ble_gatts_char_handles_t serial_num_handles;
static ble_gatts_char_handles_t hw_rev_handles;
static ble_gatts_char_handles_t fw_rev_handles;
static ble_gatts_char_handles_t sw_rev_handles;
static ble_gatts_char_handles_t sys_id_handles;
static ble_gatts_char_handles_t reg_cert_data_list_handles;
static ble_gatts_char_handles_t pnp_id_handles;
/**@brief Function for encoding a System ID.
*
* @param[out] p_encoded_buffer Buffer where the encoded data will be written.
* @param[in] p_sys_id System ID to be encoded.
*/
static void sys_id_encode(uint8_t * p_encoded_buffer, const ble_dis_sys_id_t * p_sys_id)
{
APP_ERROR_CHECK_BOOL(p_sys_id != NULL);
APP_ERROR_CHECK_BOOL(p_encoded_buffer != NULL);
p_encoded_buffer[0] = (p_sys_id->manufacturer_id & 0x00000000FF);
p_encoded_buffer[1] = (p_sys_id->manufacturer_id & 0x000000FF00) >> 8;
p_encoded_buffer[2] = (p_sys_id->manufacturer_id & 0x0000FF0000) >> 16;
p_encoded_buffer[3] = (p_sys_id->manufacturer_id & 0x00FF000000) >> 24;
p_encoded_buffer[4] = (p_sys_id->manufacturer_id & 0xFF00000000) >> 32;
p_encoded_buffer[5] = (p_sys_id->organizationally_unique_id & 0x0000FF);
p_encoded_buffer[6] = (p_sys_id->organizationally_unique_id & 0x00FF00) >> 8;
p_encoded_buffer[7] = (p_sys_id->organizationally_unique_id & 0xFF0000) >> 16;
}
/**@brief Function for encoding a PnP ID.
*
* @param[out] p_encoded_buffer Buffer where the encoded data will be written.
* @param[in] p_pnp_id PnP ID to be encoded.
*/
static void pnp_id_encode(uint8_t * p_encoded_buffer, const ble_dis_pnp_id_t * p_pnp_id)
{
uint8_t len = 0;
APP_ERROR_CHECK_BOOL(p_pnp_id != NULL);
APP_ERROR_CHECK_BOOL(p_encoded_buffer != NULL);
p_encoded_buffer[len++] = p_pnp_id->vendor_id_source;
len += uint16_encode(p_pnp_id->vendor_id, &p_encoded_buffer[len]);
len += uint16_encode(p_pnp_id->product_id, &p_encoded_buffer[len]);
len += uint16_encode(p_pnp_id->product_version, &p_encoded_buffer[len]);
APP_ERROR_CHECK_BOOL(len == BLE_DIS_PNP_ID_LEN);
}
/**@brief Function for adding the Characteristic.
*
* @param[in] uuid UUID of characteristic to be added.
* @param[in] p_char_value Initial value of characteristic to be added.
* @param[in] char_len Length of initial value. This will also be the maximum value.
* @param[in] dis_attr_md Security settings of characteristic to be added.
* @param[out] p_handles Handles of new characteristic.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t char_add(uint16_t uuid,
uint8_t * p_char_value,
uint16_t char_len,
const ble_srv_security_mode_t * dis_attr_md,
ble_gatts_char_handles_t * p_handles)
{
ble_uuid_t ble_uuid;
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_gatts_attr_md_t attr_md;
APP_ERROR_CHECK_BOOL(p_char_value != NULL);
APP_ERROR_CHECK_BOOL(char_len > 0);
// The ble_gatts_char_md_t structure uses bit fields. So we reset the memory to zero.
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;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
BLE_UUID_BLE_ASSIGN(ble_uuid, uuid);
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = dis_attr_md->read_perm;
attr_md.write_perm = dis_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 = char_len;
attr_char_value.init_offs = 0;
attr_char_value.max_len = char_len;
attr_char_value.p_value = p_char_value;
return sd_ble_gatts_characteristic_add(service_handle, &char_md, &attr_char_value, p_handles);
}
uint32_t ble_dis_init(const ble_dis_init_t * p_dis_init)
{
uint32_t err_code;
ble_uuid_t ble_uuid;
// Add service
BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_DEVICE_INFORMATION_SERVICE);
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid, &service_handle);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Add characteristics
if (p_dis_init->manufact_name_str.length > 0)
{
err_code = char_add(BLE_UUID_MANUFACTURER_NAME_STRING_CHAR,
p_dis_init->manufact_name_str.p_str,
p_dis_init->manufact_name_str.length,
&p_dis_init->dis_attr_md,
&manufact_name_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->model_num_str.length > 0)
{
err_code = char_add(BLE_UUID_MODEL_NUMBER_STRING_CHAR,
p_dis_init->model_num_str.p_str,
p_dis_init->model_num_str.length,
&p_dis_init->dis_attr_md,
&model_num_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->serial_num_str.length > 0)
{
err_code = char_add(BLE_UUID_SERIAL_NUMBER_STRING_CHAR,
p_dis_init->serial_num_str.p_str,
p_dis_init->serial_num_str.length,
&p_dis_init->dis_attr_md,
&serial_num_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->hw_rev_str.length > 0)
{
err_code = char_add(BLE_UUID_HARDWARE_REVISION_STRING_CHAR,
p_dis_init->hw_rev_str.p_str,
p_dis_init->hw_rev_str.length,
&p_dis_init->dis_attr_md,
&hw_rev_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->fw_rev_str.length > 0)
{
err_code = char_add(BLE_UUID_FIRMWARE_REVISION_STRING_CHAR,
p_dis_init->fw_rev_str.p_str,
p_dis_init->fw_rev_str.length,
&p_dis_init->dis_attr_md,
&fw_rev_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->sw_rev_str.length > 0)
{
err_code = char_add(BLE_UUID_SOFTWARE_REVISION_STRING_CHAR,
p_dis_init->sw_rev_str.p_str,
p_dis_init->sw_rev_str.length,
&p_dis_init->dis_attr_md,
&sw_rev_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->p_sys_id != NULL)
{
uint8_t encoded_sys_id[BLE_DIS_SYS_ID_LEN];
sys_id_encode(encoded_sys_id, p_dis_init->p_sys_id);
err_code = char_add(BLE_UUID_SYSTEM_ID_CHAR,
encoded_sys_id,
BLE_DIS_SYS_ID_LEN,
&p_dis_init->dis_attr_md,
&sys_id_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->p_reg_cert_data_list != NULL)
{
err_code = char_add(BLE_UUID_IEEE_REGULATORY_CERTIFICATION_DATA_LIST_CHAR,
p_dis_init->p_reg_cert_data_list->p_list,
p_dis_init->p_reg_cert_data_list->list_len,
&p_dis_init->dis_attr_md,
®_cert_data_list_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
if (p_dis_init->p_pnp_id != NULL)
{
uint8_t encoded_pnp_id[BLE_DIS_PNP_ID_LEN];
pnp_id_encode(encoded_pnp_id, p_dis_init->p_pnp_id);
err_code = char_add(BLE_UUID_PNP_ID_CHAR,
encoded_pnp_id,
BLE_DIS_PNP_ID_LEN,
&p_dis_init->dis_attr_md,
&pnp_id_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
}
return NRF_SUCCESS;
}