pinebuds/services/ble_profiles/hrp/hrpc/src/hrpc.c

/**
 ****************************************************************************************
 * @addtogroup HRPC
 * @{
 ****************************************************************************************
 */

/*
 * INCLUDE FILES
 ****************************************************************************************
 */
#include "rwip_config.h"

#if (BLE_HR_COLLECTOR)

#include "hrp_common.h"
#include "hrpc.h"
#include "hrpc_task.h"

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

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

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

/**
 ****************************************************************************************
 * @brief Initialization of the HRPC 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 hrpc_init(struct prf_task_env *env, uint16_t *start_hdl,
                         uint16_t app_task, uint8_t sec_lvl, void *params) {
  uint8_t idx;
  //-------------------- allocate memory required for the profile
  //---------------------

  struct hrpc_env_tag *hrpc_env = (struct hrpc_env_tag *)ke_malloc(
      sizeof(struct hrpc_env_tag), KE_MEM_ATT_DB);

  // allocate HRPC required environment variable
  env->env = (prf_env_t *)hrpc_env;

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

  // initialize environment variable
  env->id = TASK_ID_HRPC;
  hrpc_task_init(&(env->desc));

  for (idx = 0; idx < HRPC_IDX_MAX; idx++) {
    hrpc_env->env[idx] = NULL;
    // service is ready, go into an Idle state
    ke_state_set(KE_BUILD_ID(env->task, idx), HRPC_FREE);
  }

  return GAP_ERR_NO_ERROR;
}

/**
 ****************************************************************************************
 * @brief Clean-up connection dedicated environment parameters
 * This function performs cleanup of ongoing operations
 * @param[in|out]    env        Collector or Service allocated environment data.
 * @param[in]        conidx     Connection index
 * @param[in]        reason     Detach reason
 ****************************************************************************************
 */
static void hrpc_cleanup(struct prf_task_env *env, uint8_t conidx,
                         uint8_t reason) {
  struct hrpc_env_tag *hrpc_env = (struct hrpc_env_tag *)env->env;

  // clean-up environment variable allocated for task instance
  if (hrpc_env->env[conidx] != NULL) {
    ke_free(hrpc_env->env[conidx]);
    hrpc_env->env[conidx] = NULL;
  }

  /* Put HRP Client in Free state */
  ke_state_set(KE_BUILD_ID(env->task, conidx), HRPC_FREE);
}

/**
 ****************************************************************************************
 * @brief Destruction of the HRPC 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 hrpc_destroy(struct prf_task_env *env) {
  uint8_t idx;
  struct hrpc_env_tag *hrpc_env = (struct hrpc_env_tag *)env->env;

  // cleanup environment variable for each task instances
  for (idx = 0; idx < HRPC_IDX_MAX; idx++) {
    hrpc_cleanup(env, idx, 0);
  }

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

/**
 ****************************************************************************************
 * @brief Handles Connection creation
 *
 * @param[in|out]    env        Collector or Service allocated environment data.
 * @param[in]        conidx     Connection index
 ****************************************************************************************
 */
static void hrpc_create(struct prf_task_env *env, uint8_t conidx) {
  /* Put HRP Client in Idle state */
  ke_state_set(KE_BUILD_ID(env->task, conidx), HRPC_IDLE);
}

/// HRPC Task interface required by profile manager
const struct prf_task_cbs hrpc_itf = {
    hrpc_init,
    hrpc_destroy,
    hrpc_create,
    hrpc_cleanup,
};

/*
 * GLOBAL FUNCTIONS DEFINITIONS
 ****************************************************************************************
 */

const struct prf_task_cbs *hrpc_prf_itf_get(void) { return &hrpc_itf; }

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

void hrpc_enable_rsp_send(struct hrpc_env_tag *hrpc_env, uint8_t conidx,
                          uint8_t status) {
  // send APP the details of the discovered attributes on HTPT
  struct hrpc_enable_rsp *rsp = KE_MSG_ALLOC(
      HRPC_ENABLE_RSP, prf_dst_task_get(&(hrpc_env->prf_env), conidx),
      prf_src_task_get(&(hrpc_env->prf_env), conidx), hrpc_enable_rsp);

  rsp->status = status;

  if (status == GAP_ERR_NO_ERROR) {
    rsp->hrs = hrpc_env->env[conidx]->hrs;
    // register HRPC task in gatt for indication/notifications
    prf_register_atthdl2gatt(&hrpc_env->prf_env, conidx,
                             &hrpc_env->env[conidx]->hrs.svc);
    // Go to connected state
    ke_state_set(prf_src_task_get(&(hrpc_env->prf_env), conidx), HRPC_IDLE);
  }

  ke_msg_send(rsp);
}

void hrpc_unpack_meas_value(struct hrs_hr_meas *pmeas_val, uint8_t *packed_hr,
                            uint8_t size) {
  int8_t cursor = 0;
  int8_t i = 0;

  // Heart Rate measurement flags
  pmeas_val->flags = packed_hr[0];
  cursor += 1;

  if ((pmeas_val->flags & HRS_FLAG_HR_16BITS_VALUE) ==
      HRS_FLAG_HR_16BITS_VALUE) {
    // Heart Rate Measurement Value 16 bits
    pmeas_val->heart_rate = co_read16p(&packed_hr[cursor]);
    cursor += 2;
  } else {
    // Heart Rate Measurement Value 8 bits
    pmeas_val->heart_rate = (uint16_t)packed_hr[cursor];
    cursor += 1;
  }

  if ((pmeas_val->flags & HRS_FLAG_ENERGY_EXPENDED_PRESENT) ==
      HRS_FLAG_ENERGY_EXPENDED_PRESENT) {
    // Energy Expended present
    pmeas_val->energy_expended = co_read16p(&packed_hr[cursor]);
    cursor += 2;
  }

  // retrieve number of rr intervals
  pmeas_val->nb_rr_interval =
      ((size - cursor) > 0 ? ((size - cursor) / 2) : (0));

  for (i = 0; (i < (pmeas_val->nb_rr_interval)) && (i < (HRS_MAX_RR_INTERVAL));
       i++) {
    // RR-Intervals
    pmeas_val->rr_intervals[i] = co_read16p(&packed_hr[cursor]);
    cursor += 2;
  }
}

void hrpc_error_ind_send(struct hrpc_env_tag *hrpc_env, uint8_t conidx,
                         uint8_t status) {}

#endif /* (BLE_HR_COLLECTOR) */

/// @} HRPC