544 lines
20 KiB
C
544 lines
20 KiB
C
/**
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****************************************************************************************
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* @addtogroup BLPCTASK
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* @{
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****************************************************************************************
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*/
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/*
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* INCLUDE FILES
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****************************************************************************************
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*/
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#include "rwip_config.h"
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#if (BLE_BP_COLLECTOR)
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#include "co_utils.h"
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#include "blpc_task.h"
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#include "blpc.h"
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#include "gap.h"
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#include "att.h"
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#include "gattc_task.h"
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#include "gapc_task.h"
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#include "ke_mem.h"
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/*
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* DEFINES
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****************************************************************************************
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*/
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/// State machine used to retrieve blood pressure service characteristics information
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const struct prf_char_def blpc_bps_char[BLPC_CHAR_MAX] =
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{
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/// Blood Pressure Measurement
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[BLPC_CHAR_BP_MEAS] = {ATT_CHAR_BLOOD_PRESSURE_MEAS,
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ATT_MANDATORY,
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ATT_CHAR_PROP_IND},
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/// Intermediate Cuff pressure
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[BLPC_CHAR_CP_MEAS] = {ATT_CHAR_INTERMEDIATE_CUFF_PRESSURE,
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ATT_OPTIONAL,
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ATT_CHAR_PROP_NTF},
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/// Blood Pressure Feature
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[BLPC_CHAR_BP_FEATURE] = {ATT_CHAR_BLOOD_PRESSURE_FEATURE,
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ATT_MANDATORY,
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ATT_CHAR_PROP_RD},
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};
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/// State machine used to retrieve blood pressure service characteristic description information
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const struct prf_char_desc_def blpc_bps_char_desc[BLPC_DESC_MAX] =
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{
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/// Blood Pressure Measurement client config
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[BLPC_DESC_BP_MEAS_CLI_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_MANDATORY, BLPC_CHAR_BP_MEAS},
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/// Intermediate Cuff pressure client config
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[BLPC_DESC_IC_MEAS_CLI_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_MANDATORY, BLPC_CHAR_CP_MEAS},
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};
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/*
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* LOCAL FUNCTIONS DEFINITIONS
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****************************************************************************************
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*/
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref GATTC_SDP_SVC_IND_HANDLER message.
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* The handler stores the found service details for service discovery.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int gattc_sdp_svc_ind_handler(ke_msg_id_t const msgid,
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struct gattc_sdp_svc_ind const *ind,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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uint8_t state = ke_state_get(dest_id);
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if(state == BLPC_DISCOVERING)
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{
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uint8_t conidx = KE_IDX_GET(dest_id);
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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ASSERT_INFO(blpc_env != NULL, dest_id, src_id);
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ASSERT_INFO(blpc_env->env[conidx] != NULL, dest_id, src_id);
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if(blpc_env->env[conidx]->nb_svc == 0)
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{
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// Retrieve BLS characteristics and descriptors
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prf_extract_svc_info(ind, BLPC_CHAR_MAX, &blpc_bps_char[0], &blpc_env->env[conidx]->bps.chars[0],
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BLPC_DESC_MAX, &blpc_bps_char_desc[0], &blpc_env->env[conidx]->bps.descs[0]);
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//Even if we get multiple responses we only store 1 range
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blpc_env->env[conidx]->bps.svc.shdl = ind->start_hdl;
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blpc_env->env[conidx]->bps.svc.ehdl = ind->end_hdl;
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}
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blpc_env->env[conidx]->nb_svc++;
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}
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref BLPC_ENABLE_REQ message.
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* The handler enables the Blood Pressure Profile Collector Role.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int blpc_enable_req_handler(ke_msg_id_t const msgid,
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struct blpc_enable_req const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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// Status
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uint8_t status = GAP_ERR_NO_ERROR;
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// Get connection index
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uint8_t conidx = KE_IDX_GET(dest_id);
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// Get state
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uint8_t state = ke_state_get(dest_id);
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// Blood pressure Client Role Task Environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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ASSERT_INFO(blpc_env != NULL, dest_id, src_id);
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if((state == BLPC_IDLE) && (blpc_env->env[conidx] == NULL))
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{
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// allocate environment variable for task instance
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blpc_env->env[conidx] = (struct blpc_cnx_env*) ke_malloc(sizeof(struct blpc_cnx_env),KE_MEM_ATT_DB);
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memset(blpc_env->env[conidx], 0, sizeof(struct blpc_cnx_env));
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//Config connection, start discovering
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if(param->con_type == PRF_CON_DISCOVERY)
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{
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//start discovering BPS on peer
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prf_disc_svc_send(&(blpc_env->prf_env), conidx, ATT_SVC_BLOOD_PRESSURE);
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blpc_env->env[conidx]->last_uuid_req = ATT_SVC_BLOOD_PRESSURE;
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// Go to DISCOVERING state
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ke_state_set(dest_id, BLPC_DISCOVERING);
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}
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//normal connection, get saved att details
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else
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{
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blpc_env->env[conidx]->bps = param->bps;
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//send APP confirmation that can start normal connection to TH
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blpc_enable_rsp_send(blpc_env, conidx, GAP_ERR_NO_ERROR);
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}
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}
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else if(state != BLPC_FREE)
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{
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status = PRF_ERR_REQ_DISALLOWED;
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}
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// send an error if request fails
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if(status != GAP_ERR_NO_ERROR)
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{
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blpc_enable_rsp_send(blpc_env, conidx, status);
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}
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref GATTC_CMP_EVT message.
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* This generic event is received for different requests, so need to keep track.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int gattc_cmp_evt_handler(ke_msg_id_t const msgid,
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struct gattc_cmp_evt const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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// Get the address of the environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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// Status
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uint8_t status;
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if (blpc_env != NULL)
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{
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uint8_t conidx = KE_IDX_GET(dest_id);
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uint8_t state = ke_state_get(dest_id);
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if(state == BLPC_DISCOVERING)
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{
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status = param->status;
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if ((status == ATT_ERR_ATTRIBUTE_NOT_FOUND)||
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(status == ATT_ERR_NO_ERROR))
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{
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// Discovery
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// check characteristic validity
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if(blpc_env->env[conidx]->nb_svc == 1)
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{
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status = prf_check_svc_char_validity(BLPC_CHAR_MAX,
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blpc_env->env[conidx]->bps.chars,
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blpc_bps_char);
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}
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// too much services
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else if (blpc_env->env[conidx]->nb_svc > 1)
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{
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status = PRF_ERR_MULTIPLE_SVC;
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}
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// no services found
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else
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{
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status = PRF_ERR_STOP_DISC_CHAR_MISSING;
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}
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// check descriptor validity
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if (status == GAP_ERR_NO_ERROR)
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{
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status = prf_check_svc_char_desc_validity(BLPC_DESC_MAX,
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blpc_env->env[conidx]->bps.descs,
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blpc_bps_char_desc,
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blpc_env->env[conidx]->bps.chars);
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}
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}
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blpc_enable_rsp_send(blpc_env, conidx, status);
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}
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else if(BLPC_BUSY)
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{
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switch(param->operation)
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{
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case GATTC_WRITE:
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case GATTC_WRITE_NO_RESPONSE:
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{
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struct blpc_cfg_indntf_rsp *wr_cfm = KE_MSG_ALLOC(
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BLPC_CFG_INDNTF_RSP,
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prf_dst_task_get(&(blpc_env->prf_env), conidx),
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prf_src_task_get(&(blpc_env->prf_env), conidx),
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blpc_cfg_indntf_rsp);
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//it will be a GATT status code
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wr_cfm->status = param->status;
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// send the message
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ke_msg_send(wr_cfm);
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}
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break;
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case GATTC_READ:
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{
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if(param->status != GAP_ERR_NO_ERROR)
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{
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prf_client_att_info_rsp(
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(prf_env_t*) blpc_env->env[conidx],
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conidx, BLPC_RD_CHAR_RSP,
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param->status, NULL);
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}
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}
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break;
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default: break;
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}
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ke_state_set(prf_src_task_get(&blpc_env->prf_env, conidx), BLPC_IDLE);
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}
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}
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref BLPC_RD_CHAR_REQ message.
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* Check if the handle exists in profile(already discovered) and send request, otherwise
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* error to APP.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int blpc_rd_char_req_handler(ke_msg_id_t const msgid,
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struct blpc_rd_char_req const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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uint8_t state = ke_state_get(dest_id);
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uint8_t status = PRF_ERR_REQ_DISALLOWED;
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// Get the address of the environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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// Get connection index
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uint8_t conidx = KE_IDX_GET(dest_id);
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if((state == BLPC_IDLE) && (blpc_env->env[conidx] != NULL))
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{
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uint16_t search_hdl = ATT_INVALID_SEARCH_HANDLE;
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if((param->char_code & BLPC_DESC_MASK) == BLPC_DESC_MASK)
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{
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search_hdl = blpc_env->env[conidx]->bps.descs[param->char_code & ~BLPC_DESC_MASK].desc_hdl;
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}
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else
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{
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search_hdl = blpc_env->env[conidx]->bps.chars[param->char_code].val_hdl;
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}
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//check if handle is viable
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if (search_hdl != ATT_INVALID_SEARCH_HANDLE)
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{
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prf_read_char_send(
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&(blpc_env->prf_env), conidx,
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blpc_env->env[conidx]->bps.svc.shdl,
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blpc_env->env[conidx]->bps.svc.ehdl,
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search_hdl);
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status = GAP_ERR_NO_ERROR;
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}
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else
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{
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status = PRF_ERR_INEXISTENT_HDL;
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}
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}
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if (status != GAP_ERR_NO_ERROR)
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{
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prf_client_att_info_rsp(
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(prf_env_t*) blpc_env->env[conidx],
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conidx, BLPC_RD_CHAR_RSP,
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status, NULL);
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}
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref GATTC_READ_IND message.
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* Generic event received after every simple read command sent to peer server.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int gattc_read_ind_handler(ke_msg_id_t const msgid,
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struct gattc_read_ind const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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// Get the address of the environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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// Get connection index
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uint8_t conidx = KE_IDX_GET(dest_id);
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prf_client_att_info_rsp(&blpc_env->prf_env, conidx, BLPC_RD_CHAR_RSP,
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GAP_ERR_NO_ERROR, param);
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref BLPC_CFG_INDNTF_REQ message.
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* It allows configuration of the peer ind/ntf/stop characteristic for a specified characteristic.
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* Will return an error code if that cfg char does not exist.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int blpc_cfg_indntf_req_handler(ke_msg_id_t const msgid,
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struct blpc_cfg_indntf_req const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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uint16_t cfg_hdl = ATT_INVALID_SEARCH_HANDLE;
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// Get the address of the environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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// Get connection index
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uint8_t conidx = KE_IDX_GET(dest_id);
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// Status
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uint8_t status = PRF_ERR_REQ_DISALLOWED;
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if((blpc_env->env[conidx] != NULL) && (ke_state_get(dest_id) == BLPC_IDLE))
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{
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status = PRF_ERR_INVALID_PARAM;
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//get handle of the configuration characteristic to set and check if value matches property
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switch(param->char_code)
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{
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case BLPC_CHAR_BP_MEAS://can only IND
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{
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if((param->cfg_val == PRF_CLI_STOP_NTFIND)||
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(param->cfg_val == PRF_CLI_START_IND))
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{
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cfg_hdl = blpc_env->env[conidx]->bps.descs[BLPC_DESC_BP_MEAS_CLI_CFG].desc_hdl;
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}
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}break;
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case BLPC_CHAR_CP_MEAS://can only NTF
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{
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if((param->cfg_val == PRF_CLI_STOP_NTFIND)||
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(param->cfg_val == PRF_CLI_START_NTF))
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{
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cfg_hdl = blpc_env->env[conidx]->bps.descs[BLPC_DESC_IC_MEAS_CLI_CFG].desc_hdl;
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}
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}break;
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default:
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{
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status = PRF_ERR_INEXISTENT_HDL;
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}break;
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}
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//check if the handle value exists
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if (cfg_hdl != ATT_INVALID_SEARCH_HANDLE)
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{
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// Send GATT Write Request
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prf_gatt_write_ntf_ind(&blpc_env->prf_env, conidx, cfg_hdl, param->cfg_val);
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// Set status
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status = GAP_ERR_NO_ERROR;
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}
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}
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if (status != GAP_ERR_NO_ERROR)
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{
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struct blpc_cfg_indntf_rsp *rsp = KE_MSG_ALLOC(BLPC_CFG_INDNTF_RSP, src_id, dest_id, blpc_cfg_indntf_rsp);
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// It will be an PRF status code
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rsp->status = status;
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// Send the message
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ke_msg_send(rsp);
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}
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return (KE_MSG_CONSUMED);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref GATTC_EVENT_IND message.
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* @param[in] msgid Id of the message received (probably unused).
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* @param[in] param Pointer to the parameters of the message.
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* @param[in] dest_id ID of the receiving task instance (probably unused).
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* @param[in] src_id ID of the sending task instance.
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* @return If the message was consumed or not.
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****************************************************************************************
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*/
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__STATIC int gattc_event_ind_handler(ke_msg_id_t const msgid,
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struct gattc_event_ind const *param,
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ke_task_id_t const dest_id,
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ke_task_id_t const src_id)
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{
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uint8_t conidx = KE_IDX_GET(dest_id);
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// Get the address of the environment
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struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
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if(blpc_env->env[conidx] != NULL)
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{
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switch(param->type)
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{
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case GATTC_INDICATE:
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{
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// confirm that indication has been correctly received
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struct gattc_event_cfm * cfm = KE_MSG_ALLOC(GATTC_EVENT_CFM, src_id, dest_id, gattc_event_cfm);
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cfm->handle = param->handle;
|
|
ke_msg_send(cfm);
|
|
}
|
|
/* no break */
|
|
|
|
case GATTC_NOTIFY:
|
|
{
|
|
if((param->handle == blpc_env->env[conidx]->bps.chars[BLPC_CHAR_CP_MEAS].val_hdl)
|
|
|| ((param->handle == blpc_env->env[conidx]->bps.chars[BLPC_CHAR_BP_MEAS].val_hdl)))
|
|
{
|
|
//build a BLPC_BP_MEAD_IND message with stable blood pressure value code.
|
|
struct blpc_bp_meas_ind * ind = KE_MSG_ALLOC(
|
|
BLPC_BP_MEAS_IND,
|
|
prf_dst_task_get(&(blpc_env->prf_env), conidx),
|
|
prf_src_task_get(&(blpc_env->prf_env), conidx),
|
|
blpc_bp_meas_ind);
|
|
|
|
// Intermediate cuff pressure value
|
|
ind->flag_interm_cp = ((param->type == GATTC_NOTIFY) ? 0x01 : 0x00);
|
|
|
|
// unpack blood pressure measurement.
|
|
blpc_unpack_meas_value(&(ind->meas_val), (uint8_t*) param->value);
|
|
|
|
ke_msg_send(ind);
|
|
}
|
|
} break;
|
|
|
|
default: break;
|
|
}
|
|
}
|
|
return (KE_MSG_CONSUMED);
|
|
}
|
|
|
|
/*
|
|
* GLOBAL VARIABLE DEFINITIONS
|
|
****************************************************************************************
|
|
*/
|
|
|
|
/// Default State handlers definition
|
|
KE_MSG_HANDLER_TAB(blpc)
|
|
{
|
|
{GATTC_SDP_SVC_IND, (ke_msg_func_t)gattc_sdp_svc_ind_handler},
|
|
{BLPC_ENABLE_REQ, (ke_msg_func_t)blpc_enable_req_handler},
|
|
{GATTC_CMP_EVT, (ke_msg_func_t)gattc_cmp_evt_handler},
|
|
{BLPC_RD_CHAR_REQ, (ke_msg_func_t)blpc_rd_char_req_handler},
|
|
{GATTC_READ_IND, (ke_msg_func_t)gattc_read_ind_handler},
|
|
{GATTC_EVENT_IND, (ke_msg_func_t)gattc_event_ind_handler},
|
|
{GATTC_EVENT_REQ_IND, (ke_msg_func_t)gattc_event_ind_handler},
|
|
{BLPC_CFG_INDNTF_REQ, (ke_msg_func_t)blpc_cfg_indntf_req_handler},
|
|
};
|
|
|
|
void blpc_task_init(struct ke_task_desc *task_desc)
|
|
{
|
|
// Get the address of the environment
|
|
struct blpc_env_tag *blpc_env = PRF_ENV_GET(BLPC, blpc);
|
|
|
|
task_desc->msg_handler_tab = blpc_msg_handler_tab;
|
|
task_desc->msg_cnt = ARRAY_LEN(blpc_msg_handler_tab);
|
|
task_desc->state = blpc_env->state;
|
|
task_desc->idx_max = BLPC_IDX_MAX;
|
|
}
|
|
|
|
#endif /* (BLE_BP_COLLECTOR) */
|
|
/// @} BLPCTASK
|