pinebuds/services/ble_profiles/blp/blps/src/blps.c

/**
 ****************************************************************************************
 * @addtogroup BLPS
 * @{
 ****************************************************************************************
 */

/*
 * INCLUDE FILES
 ****************************************************************************************
 */

#include "rwip_config.h"

#if (BLE_BP_SENSOR)
#include "blps.h"
#include "blps_task.h"
#include "gap.h"
#include "gattc_task.h"
#include "prf_utils.h"

#include "co_utils.h"
#include "ke_mem.h"

/*
 * BLPS PROFILE ATTRIBUTES
 ****************************************************************************************
 */

/// Full BLPS Database Description - Used to add attributes into the database
const struct attm_desc blps_att_db[BPS_IDX_NB] = {
    // Blood Pressure Service Declaration
    [BPS_IDX_SVC] = {ATT_DECL_PRIMARY_SERVICE, PERM(RD, ENABLE), 0, 0},

    // Blood Pressure Measurement Characteristic Declaration
    [BPS_IDX_BP_MEAS_CHAR] = {ATT_DECL_CHARACTERISTIC, PERM(RD, ENABLE), 0, 0},
    // Blood Pressure Measurement Characteristic Value
    [BPS_IDX_BP_MEAS_VAL] = {ATT_CHAR_BLOOD_PRESSURE_MEAS, PERM(IND, ENABLE),
                             PERM(RI, ENABLE), BLPS_BP_MEAS_MAX_LEN},
    // Blood Pressure Measurement Characteristic - Client Characteristic
    // Configuration Descriptor
    [BPS_IDX_BP_MEAS_IND_CFG] = {ATT_DESC_CLIENT_CHAR_CFG,
                                 PERM(RD, ENABLE) | PERM(WRITE_REQ, ENABLE), 0,
                                 0},

    // Blood Pressure Feature Characteristic Declaration
    [BPS_IDX_BP_FEATURE_CHAR] = {ATT_DECL_CHARACTERISTIC, PERM(RD, ENABLE), 0,
                                 0},
    // Blood Pressure Feature Characteristic Value
    [BPS_IDX_BP_FEATURE_VAL] = {ATT_CHAR_BLOOD_PRESSURE_FEATURE,
                                PERM(RD, ENABLE), PERM(RI, ENABLE),
                                sizeof(uint16_t)},

    // Intermediate Cuff Pressure Characteristic Declaration
    [BPS_IDX_INTM_CUFF_PRESS_CHAR] = {ATT_DECL_CHARACTERISTIC, PERM(RD, ENABLE),
                                      0, 0},
    // Intermediate Cuff Pressure Characteristic Value
    [BPS_IDX_INTM_CUFF_PRESS_VAL] = {ATT_CHAR_INTERMEDIATE_CUFF_PRESSURE,
                                     PERM(NTF, ENABLE), PERM(RI, ENABLE),
                                     BLPS_BP_MEAS_MAX_LEN},
    // Intermediate Cuff Pressure Characteristic - Client Characteristic
    // Configuration Descriptor
    [BPS_IDX_INTM_CUFF_PRESS_NTF_CFG] = {ATT_DESC_CLIENT_CHAR_CFG,
                                         PERM(RD, ENABLE) |
                                             PERM(WRITE_REQ, ENABLE),
                                         0, 0},
};

/*
 * LOCAL FUNCTIONS DEFINITIONS
 ****************************************************************************************
 */

/**
 ****************************************************************************************
 * @brief Initialization of the BLPS module.
 * This function performs all the initializations of the Profile module.
 *  - Creation of database (if it's a service)
 *  - Allocation of profile required memory
 *  - Initialization of task descriptor to register application
 *      - Task State array
 *      - Number of tasks
 *      - Default task handler
 *
 * @param[out]    env        Collector or Service allocated environment data.
 * @param[in|out] start_hdl  Service start handle (0 - dynamically allocated),
 *only applies for services.
 * @param[in]     app_task   Application task number.
 * @param[in]     sec_lvl    Security level (AUTH, EKS and MI field of @see enum
 *attm_value_perm_mask)
 * @param[in]     param      Configuration parameters of profile collector or
 *service (32 bits aligned)
 *
 * @return status code to know if profile initialization succeed or not.
 ****************************************************************************************
 */
static uint8_t blps_init(struct prf_task_env *env, uint16_t *start_hdl,
                         uint16_t app_task, uint8_t sec_lvl,
                         struct blps_db_cfg *params) {
  //------------------ create the attribute database for the profile
  //-------------------
  // Service content flag
  uint32_t cfg_flag = BLPS_MANDATORY_MASK;
  // DB Creation Status
  uint8_t status = ATT_ERR_NO_ERROR;

  // Set Configuration Flag Value
  if (params->prfl_cfg & BLPS_INTM_CUFF_PRESS_SUP) {
    cfg_flag |= BLPS_INTM_CUFF_PRESS_MASK;
  }

  // Add service in the database
  status = attm_svc_create_db(
      start_hdl, ATT_SVC_BLOOD_PRESSURE, (uint8_t *)&cfg_flag, BPS_IDX_NB, NULL,
      env->task, &blps_att_db[0],
      (sec_lvl & (PERM_MASK_SVC_DIS | PERM_MASK_SVC_AUTH | PERM_MASK_SVC_EKS)) |
          PERM(SVC_MI, DISABLE));

  //-------------------- allocate memory required for the profile
  //---------------------
  if (status == ATT_ERR_NO_ERROR) {
    // Allocate BLPS required environment variable
    struct blps_env_tag *blps_env = (struct blps_env_tag *)ke_malloc(
        sizeof(struct blps_env_tag), KE_MEM_ATT_DB);

    // Initialize BLPS environment
    env->env = (prf_env_t *)blps_env;
    blps_env->shdl = *start_hdl;
    blps_env->features = params->features;
    blps_env->prfl_cfg = params->prfl_cfg;

    blps_env->prf_env.app_task =
        app_task | (PERM_GET(sec_lvl, SVC_MI) ? PERM(PRF_MI, ENABLE)
                                              : PERM(PRF_MI, DISABLE));
    // Multi Instantiated task
    blps_env->prf_env.prf_task = env->task | PERM(PRF_MI, ENABLE);

    // initialize environment variable
    env->id = TASK_ID_BLPS;
    blps_task_init(&(env->desc));

    memset(blps_env->prfl_ntf_ind_cfg, 0, BLE_CONNECTION_MAX);

    /* Put BLS in disabled state */
    ke_state_set(env->task, BLPS_IDLE);
  }

  return (status);
}

/**
 ****************************************************************************************
 * @brief Destruction of the BLPS module - due to a reset for instance.
 * This function clean-up allocated memory (attribute database is destroyed by
 *another procedure)
 *
 * @param[in|out]    env        Collector or Service allocated environment data.
 ****************************************************************************************
 */
static void blps_destroy(struct prf_task_env *env) {
  struct blps_env_tag *blps_env = (struct blps_env_tag *)env->env;

  // free profile environment variables
  env->env = NULL;
  ke_free(blps_env);
}

/**
 ****************************************************************************************
 * @brief Handles Connection creation
 *
 * @param[in|out]    env        Collector or Service allocated environment data.
 * @param[in]        conidx     Connection index
 ****************************************************************************************
 */
static void blps_create(struct prf_task_env *env, uint8_t conidx) {
  struct blps_env_tag *blps_env = (struct blps_env_tag *)env->env;
  blps_env->prfl_ntf_ind_cfg[conidx] = 0;

  /* Put BLS in idle state */
  ke_state_set(KE_BUILD_ID(env->task, conidx), BLPS_IDLE);
}

/**
 ****************************************************************************************
 * @brief Handles Disconnection
 *
 * @param[in|out]    env        Collector or Service allocated environment data.
 * @param[in]        conidx     Connection index
 * @param[in]        reason     Detach reason
 ****************************************************************************************
 */
static void blps_cleanup(struct prf_task_env *env, uint8_t conidx,
                         uint8_t reason) {
  struct blps_env_tag *blps_env = (struct blps_env_tag *)env->env;

  // clean-up environment variable allocated for task instance
  blps_env->prfl_ntf_ind_cfg[conidx] = 0;
}

/*
 * GLOBAL VARIABLE DEFINITIONS
 ****************************************************************************************
 */

/// BLPS Task interface required by profile manager
const struct prf_task_cbs blps_itf = {
    (prf_init_fnct)blps_init,
    blps_destroy,
    blps_create,
    blps_cleanup,
};

/*
 * EXPORTED FUNCTIONS DEFINITIONS
 ****************************************************************************************
 */

const struct prf_task_cbs *blps_prf_itf_get(void) { return &blps_itf; }

uint8_t blps_pack_meas_value(uint8_t *packed_bp,
                             const struct bps_bp_meas *pmeas_val) {
  uint8_t cursor;

  *(packed_bp) = pmeas_val->flags;

  // Blood Pressure Measurement Compound Value - Systolic
  co_write16p(packed_bp + 1, pmeas_val->systolic);

  // Blood Pressure Measurement Compound Value - Diastolic (mmHg)
  co_write16p(packed_bp + 3, pmeas_val->diastolic);

  //  Blood Pressure Measurement Compound Value - Mean Arterial Pressure (mmHg)
  co_write16p(packed_bp + 5, pmeas_val->mean_arterial_pressure);

  cursor = 7;

  // time flag set
  if ((pmeas_val->flags & BPS_FLAG_TIME_STAMP_PRESENT) ==
      BPS_FLAG_TIME_STAMP_PRESENT) {
    cursor += prf_pack_date_time(packed_bp + cursor, &(pmeas_val->time_stamp));
  }

  // Pulse rate flag set
  if ((pmeas_val->flags & BPS_FLAG_PULSE_RATE_PRESENT) ==
      BPS_FLAG_PULSE_RATE_PRESENT) {
    co_write16p(packed_bp + cursor, pmeas_val->pulse_rate);
    cursor += 2;
  }

  // User ID flag set
  if ((pmeas_val->flags & BPS_FLAG_USER_ID_PRESENT) ==
      BPS_FLAG_USER_ID_PRESENT) {
    *(packed_bp + cursor) = pmeas_val->user_id;
    cursor += 1;
  }

  // Measurement status flag set
  if ((pmeas_val->flags & BPS_FLAG_MEAS_STATUS_PRESENT) ==
      BPS_FLAG_MEAS_STATUS_PRESENT) {
    co_write16p(packed_bp + cursor, pmeas_val->meas_status);
    cursor += 2;
  }

  // clear unused packet data
  if (cursor < BLPS_BP_MEAS_MAX_LEN) {
    memset(packed_bp + cursor, 0, BLPS_BP_MEAS_MAX_LEN - cursor);
  }

  return cursor;
}

void blps_meas_send_rsp_send(uint8_t conidx, uint8_t status) {
  // Get the address of the environment
  struct blps_env_tag *blps_env = PRF_ENV_GET(BLPS, blps);

  struct blps_meas_send_rsp *rsp = KE_MSG_ALLOC(
      BLPS_MEAS_SEND_RSP, prf_dst_task_get(&blps_env->prf_env, conidx),
      prf_src_task_get(&blps_env->prf_env, conidx), blps_meas_send_rsp);

  rsp->conidx = conidx;
  rsp->status = status;

  ke_msg_send(rsp);
}

#endif /* BLE_BP_SENSOR */

/// @} BLPS