598 lines
22 KiB
C
598 lines
22 KiB
C
/**
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****************************************************************************************
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* @addtogroup BASCTASK
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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_BATT_CLIENT)
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#include "basc.h"
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#include "basc_task.h"
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#include "co_math.h"
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#include "gap.h"
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#include "gattc_task.h"
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#include "co_utils.h"
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#include "ke_mem.h"
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/*
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* TYPE DEFINITIONS
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****************************************************************************************
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*/
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/// State machine used to retrieve Battery Service characteristics information
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const struct prf_char_def basc_bas_char[BAS_CHAR_MAX] = {
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/// Battery Level
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[BAS_CHAR_BATT_LEVEL] = {ATT_CHAR_BATTERY_LEVEL, ATT_MANDATORY,
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ATT_CHAR_PROP_RD},
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};
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/// State machine used to retrieve Battery Service characteristic description
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/// information
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const struct prf_char_desc_def basc_bas_char_desc[BAS_DESC_MAX] = {
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/// Battery Level Characteristic Presentation Format
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[BAS_DESC_BATT_LEVEL_PRES_FORMAT] = {ATT_DESC_CHAR_PRES_FORMAT,
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ATT_OPTIONAL, BAS_CHAR_BATT_LEVEL},
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/// Battery Level Client Config
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[BAS_DESC_BATT_LEVEL_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_OPTIONAL,
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BAS_CHAR_BATT_LEVEL},
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};
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/*
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* GLOBAL 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 BASC_ENABLE_REQ message.
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* The handler enables the Battery Service Client 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 basc_enable_req_handler(ke_msg_id_t const msgid,
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struct basc_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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// Status
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uint8_t status = GAP_ERR_NO_ERROR;
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int msg_status = KE_MSG_CONSUMED;
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uint8_t state = ke_state_get(dest_id);
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uint8_t conidx = KE_IDX_GET(dest_id);
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// Battery service Client Role Task Environment
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struct basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
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ASSERT_INFO(basc_env != NULL, dest_id, src_id);
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if ((state == BASC_IDLE) && (basc_env->env[conidx] == NULL)) {
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// allocate environment variable for task instance
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basc_env->env[conidx] = (struct basc_cnx_env *)ke_malloc(
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sizeof(struct basc_cnx_env), KE_MEM_ATT_DB);
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memset(basc_env->env[conidx], 0, sizeof(struct basc_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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// start discovering BAS on peer
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prf_disc_svc_send(&(basc_env->prf_env), conidx, ATT_SVC_BATTERY_SERVICE);
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// Go to DISCOVERING state
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ke_state_set(dest_id, BASC_BUSY);
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basc_env->env[conidx]->operation = ke_param2msg(param);
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msg_status = KE_MSG_NO_FREE;
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}
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// normal connection, get saved att details
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else {
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basc_env->env[conidx]->bas_nb = param->bas_nb;
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memcpy(&(basc_env->env[conidx]->bas[0]), &(param->bas[0]),
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sizeof(struct bas_content) * BASC_NB_BAS_INSTANCES_MAX);
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// send APP confirmation that can start normal connection to TH
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basc_enable_rsp_send(basc_env, conidx, GAP_ERR_NO_ERROR);
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}
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} else if (state != BASC_FREE) {
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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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basc_enable_rsp_send(basc_env, conidx, status);
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}
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return (msg_status);
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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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uint8_t state = ke_state_get(dest_id);
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if (state == BASC_BUSY) {
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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 basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
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ASSERT_INFO(basc_env != NULL, dest_id, src_id);
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ASSERT_INFO(basc_env->env[conidx] != NULL, dest_id, src_id);
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if (basc_env->env[conidx]->bas_nb < BASC_NB_BAS_INSTANCES_MAX) {
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// Retrieve DIS characteristics
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prf_extract_svc_info(
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ind, BAS_CHAR_MAX, &basc_bas_char[0],
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&(basc_env->env[conidx]->bas[basc_env->env[conidx]->bas_nb].chars[0]),
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BAS_DESC_MAX, &basc_bas_char_desc[0],
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&(basc_env->env[conidx]
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->bas[basc_env->env[conidx]->bas_nb]
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.descs[0]));
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// Even if we get multiple responses we only store 1 range
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basc_env->env[conidx]->bas[basc_env->env[conidx]->bas_nb].svc.shdl =
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ind->start_hdl;
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basc_env->env[conidx]->bas[basc_env->env[conidx]->bas_nb].svc.ehdl =
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ind->end_hdl;
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}
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basc_env->env[conidx]->bas_nb++;
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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 BASC_READ_INFO_REQ 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 basc_read_info_req_handler(ke_msg_id_t const msgid,
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struct basc_read_info_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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int msg_status = KE_MSG_CONSUMED;
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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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if (state == BASC_IDLE) {
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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 basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
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ASSERT_INFO(basc_env != NULL, dest_id, src_id);
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// environment variable not ready
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if (basc_env->env[conidx] == NULL) {
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status = PRF_APP_ERROR;
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}
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// check parameter range
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else if (param->bas_nb > basc_env->env[conidx]->bas_nb) {
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status = PRF_ERR_INVALID_PARAM;
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} else {
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uint16_t handle = ATT_INVALID_HANDLE;
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status = PRF_ERR_INEXISTENT_HDL;
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// check requested info
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switch (param->info) {
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/// Battery Level value
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case BASC_BATT_LVL_VAL: {
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handle = basc_env->env[conidx]
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->bas[param->bas_nb]
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.chars[BAS_CHAR_BATT_LEVEL]
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.val_hdl;
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} break;
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/// Battery Level Client Characteristic Configuration
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case BASC_NTF_CFG: {
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handle = basc_env->env[conidx]
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->bas[param->bas_nb]
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.descs[BAS_DESC_BATT_LEVEL_CFG]
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.desc_hdl;
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} break;
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/// Battery Level Characteristic Presentation Format
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case BASC_BATT_LVL_PRES_FORMAT: {
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handle = basc_env->env[conidx]
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->bas[param->bas_nb]
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.descs[BAS_DESC_BATT_LEVEL_PRES_FORMAT]
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.desc_hdl;
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} break;
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default: {
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status = PRF_ERR_INVALID_PARAM;
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} break;
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}
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if (handle != ATT_INVALID_HANDLE) {
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status = GAP_ERR_NO_ERROR;
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// read information
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prf_read_char_send(&(basc_env->prf_env), conidx,
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basc_env->env[conidx]->bas[param->bas_nb].svc.shdl,
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basc_env->env[conidx]->bas[param->bas_nb].svc.ehdl,
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handle);
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// store context of request and go into busy state
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basc_env->env[conidx]->operation = ke_param2msg(param);
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ke_state_set(dest_id, BASC_BUSY);
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msg_status = KE_MSG_NO_FREE;
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}
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}
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}
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// process message later
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else if (state == BASC_BUSY) {
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status = GAP_ERR_NO_ERROR;
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msg_status = KE_MSG_SAVED;
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}
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// request cannot be performed
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if (status != GAP_ERR_NO_ERROR) {
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struct basc_read_info_rsp *rsp =
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KE_MSG_ALLOC(BASC_READ_INFO_RSP, src_id, dest_id, basc_read_info_rsp);
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// set error status
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rsp->status = status;
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rsp->info = param->info;
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rsp->bas_nb = param->bas_nb;
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ke_msg_send(rsp);
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}
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return (msg_status);
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}
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/**
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****************************************************************************************
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* @brief Handles reception of the @ref BASC_BATT_LEVEL_NTF_CFG_REQ message.
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* It allows configuration of the peer ntf/stop characteristic for Battery Level
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*Characteristic. 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 basc_batt_level_ntf_cfg_req_handler(
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ke_msg_id_t const msgid, struct basc_batt_level_ntf_cfg_req const *param,
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ke_task_id_t const dest_id, ke_task_id_t const src_id) {
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int msg_status = KE_MSG_CONSUMED;
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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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if (state == BASC_IDLE) {
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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 basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
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ASSERT_INFO(basc_env != NULL, dest_id, src_id);
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// environment variable not ready
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if (basc_env->env[conidx] == NULL) {
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status = PRF_APP_ERROR;
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}
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// check parameter range
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else if ((param->bas_nb > basc_env->env[conidx]->bas_nb) ||
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(param->ntf_cfg > PRF_CLI_START_NTF)) {
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status = PRF_ERR_INVALID_PARAM;
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} else {
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uint16_t handle = basc_env->env[conidx]
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->bas[param->bas_nb]
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.descs[BAS_DESC_BATT_LEVEL_CFG]
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.desc_hdl;
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status = PRF_ERR_INEXISTENT_HDL;
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if (handle == ATT_INVALID_HDL) {
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status = PRF_ERR_INEXISTENT_HDL;
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} else {
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status = GAP_ERR_NO_ERROR;
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// Send GATT Write Request
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prf_gatt_write_ntf_ind(&basc_env->prf_env, conidx, handle,
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param->ntf_cfg);
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// store context of request and go into busy state
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basc_env->env[conidx]->operation = ke_param2msg(param);
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ke_state_set(dest_id, BASC_BUSY);
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msg_status = KE_MSG_NO_FREE;
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}
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}
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}
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// process message later
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else if (state == BASC_BUSY) {
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status = GAP_ERR_NO_ERROR;
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msg_status = KE_MSG_SAVED;
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}
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// request cannot be performed
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if (status != GAP_ERR_NO_ERROR) {
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struct basc_batt_level_ntf_cfg_rsp *rsp =
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KE_MSG_ALLOC(BASC_BATT_LEVEL_NTF_CFG_RSP, src_id, dest_id,
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basc_batt_level_ntf_cfg_rsp);
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// set error status
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rsp->status = status;
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rsp->bas_nb = param->bas_nb;
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ke_msg_send(rsp);
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}
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return (msg_status);
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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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uint8_t state = ke_state_get(dest_id);
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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 basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
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// sanity check
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if ((state == BASC_BUSY) && (basc_env->env[conidx] != NULL) &&
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(basc_env->env[conidx]->operation != NULL)) {
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switch (basc_env->env[conidx]->operation->id) {
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case BASC_ENABLE_REQ: {
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uint8_t status = param->status;
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if (param->status == ATT_ERR_NO_ERROR) {
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// check characteristic validity
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if (basc_env->env[conidx]->bas_nb > 0) {
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uint8_t i;
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for (i = 0; (i < co_min(basc_env->env[conidx]->bas_nb,
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BASC_NB_BAS_INSTANCES_MAX)) &&
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(status == GAP_ERR_NO_ERROR);
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i++) {
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status = prf_check_svc_char_validity(
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BAS_CHAR_MAX, basc_env->env[conidx]->bas[i].chars,
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basc_bas_char);
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// check descriptor validity
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if (status == GAP_ERR_NO_ERROR) {
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struct prf_char_desc_def bas_desc[BAS_DESC_MAX];
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memcpy(bas_desc, basc_bas_char_desc, sizeof(basc_bas_char_desc));
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if (basc_env->env[conidx]->bas_nb > 1) {
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bas_desc[BAS_DESC_BATT_LEVEL_PRES_FORMAT].req_flag =
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ATT_MANDATORY;
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}
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if ((basc_env->env[conidx]
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->bas[i]
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.chars[BAS_CHAR_BATT_LEVEL]
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.prop &
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ATT_CHAR_PROP_NTF) == ATT_CHAR_PROP_NTF) {
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bas_desc[BAS_DESC_BATT_LEVEL_CFG].req_flag = ATT_MANDATORY;
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}
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status = prf_check_svc_char_desc_validity(
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BAS_DESC_MAX, basc_env->env[conidx]->bas[i].descs, bas_desc,
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basc_env->env[conidx]->bas[i].chars);
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}
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}
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}
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// no services found
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else {
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status = PRF_ERR_STOP_DISC_CHAR_MISSING;
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}
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}
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basc_enable_rsp_send(basc_env, conidx, status);
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} break;
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case BASC_READ_INFO_REQ: {
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struct basc_read_info_req *req =
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(struct basc_read_info_req *)ke_msg2param(
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basc_env->env[conidx]->operation);
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struct basc_read_info_rsp *rsp = KE_MSG_ALLOC(
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BASC_READ_INFO_RSP, prf_dst_task_get(&(basc_env->prf_env), conidx),
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dest_id, basc_read_info_rsp);
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// set error status
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rsp->status = param->status;
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rsp->bas_nb = req->bas_nb;
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rsp->info = req->info;
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ke_msg_send(rsp);
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} break;
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case BASC_BATT_LEVEL_NTF_CFG_REQ: {
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struct basc_batt_level_ntf_cfg_req *req =
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(struct basc_batt_level_ntf_cfg_req *)ke_msg2param(
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basc_env->env[conidx]->operation);
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struct basc_batt_level_ntf_cfg_rsp *rsp =
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KE_MSG_ALLOC(BASC_BATT_LEVEL_NTF_CFG_RSP,
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prf_dst_task_get(&(basc_env->prf_env), conidx), dest_id,
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basc_batt_level_ntf_cfg_rsp);
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// set error status
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rsp->status = param->status;
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rsp->bas_nb = req->bas_nb;
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ke_msg_send(rsp);
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} break;
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default: {
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// Not Expected at all
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ASSERT_ERR(0);
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} break;
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}
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// operation is over - go back to idle state
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ke_free(basc_env->env[conidx]->operation);
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basc_env->env[conidx]->operation = NULL;
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ke_state_set(dest_id, BASC_IDLE);
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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).
|
|
* @param[in] param Pointer to the parameters of the message.
|
|
* @param[in] dest_id ID of the receiving task instance (probably unused).
|
|
* @param[in] src_id ID of the sending task instance.
|
|
* @return If the message was consumed or not.
|
|
****************************************************************************************
|
|
*/
|
|
__STATIC int gattc_read_ind_handler(ke_msg_id_t const msgid,
|
|
struct gattc_read_ind const *param,
|
|
ke_task_id_t const dest_id,
|
|
ke_task_id_t const src_id) {
|
|
uint8_t state = ke_state_get(dest_id);
|
|
|
|
if (state == BASC_BUSY) {
|
|
uint8_t conidx = KE_IDX_GET(dest_id);
|
|
|
|
struct basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
|
|
struct basc_read_info_req *req = (struct basc_read_info_req *)ke_msg2param(
|
|
basc_env->env[conidx]->operation);
|
|
|
|
ASSERT_INFO(basc_env != NULL, dest_id, src_id);
|
|
ASSERT_INFO(basc_env->env[conidx] != NULL, dest_id, src_id);
|
|
|
|
struct basc_read_info_rsp *rsp = KE_MSG_ALLOC(
|
|
BASC_READ_INFO_RSP, prf_dst_task_get(&(basc_env->prf_env), conidx),
|
|
dest_id, basc_read_info_rsp);
|
|
// set error status
|
|
rsp->status = GAP_ERR_NO_ERROR;
|
|
rsp->bas_nb = req->bas_nb;
|
|
rsp->info = req->info;
|
|
|
|
switch (req->info) {
|
|
/// Battery Level value
|
|
case BASC_BATT_LVL_VAL: {
|
|
rsp->data.batt_level = param->value[0];
|
|
} break;
|
|
/// Battery Level Client Characteristic Configuration
|
|
case BASC_NTF_CFG: {
|
|
rsp->data.ntf_cfg = co_read16p(¶m->value[0]);
|
|
|
|
} break;
|
|
/// Battery Level Characteristic Presentation Format
|
|
case BASC_BATT_LVL_PRES_FORMAT: {
|
|
prf_unpack_char_pres_fmt(¶m->value[0], &rsp->data.char_pres_format);
|
|
} break;
|
|
|
|
default: {
|
|
ASSERT_ERR(0);
|
|
} break;
|
|
}
|
|
|
|
// send response
|
|
ke_msg_send(rsp);
|
|
|
|
// operation is over - go back to idle state
|
|
ke_free(basc_env->env[conidx]->operation);
|
|
basc_env->env[conidx]->operation = NULL;
|
|
ke_state_set(dest_id, BASC_IDLE);
|
|
}
|
|
|
|
return (KE_MSG_CONSUMED);
|
|
}
|
|
|
|
/**
|
|
****************************************************************************************
|
|
* @brief Handles reception of the @ref GATTC_EVENT_IND message.
|
|
* @param[in] msgid Id of the message received (probably unused).
|
|
* @param[in] param Pointer to the parameters of the message.
|
|
* @param[in] dest_id ID of the receiving task instance (probably unused).
|
|
* @param[in] src_id ID of the sending task instance.
|
|
* @return If the message was consumed or not.
|
|
****************************************************************************************
|
|
*/
|
|
__STATIC int gattc_event_ind_handler(ke_msg_id_t const msgid,
|
|
struct gattc_event_ind const *param,
|
|
ke_task_id_t const dest_id,
|
|
ke_task_id_t const src_id) {
|
|
uint8_t state = ke_state_get(dest_id);
|
|
|
|
if (state != BASC_FREE) {
|
|
|
|
// BAS Instance
|
|
uint8_t bas_nb;
|
|
uint8_t conidx = KE_IDX_GET(src_id);
|
|
// Get the address of the environment
|
|
struct basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
|
|
|
|
// Battery Level - BAS instance is unknown.
|
|
for (bas_nb = 0; (bas_nb < basc_env->env[conidx]->bas_nb); bas_nb++) {
|
|
if (param->handle == basc_env->env[conidx]
|
|
->bas[bas_nb]
|
|
.chars[BAS_CHAR_BATT_LEVEL]
|
|
.val_hdl) {
|
|
struct basc_batt_level_ind *ind = KE_MSG_ALLOC(
|
|
BASC_BATT_LEVEL_IND, prf_dst_task_get(&(basc_env->prf_env), conidx),
|
|
dest_id, basc_batt_level_ind);
|
|
|
|
ind->batt_level = param->value[0];
|
|
ind->bas_nb = bas_nb;
|
|
|
|
// Send Battery Level value to APP
|
|
ke_msg_send(ind);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return (KE_MSG_CONSUMED);
|
|
}
|
|
|
|
/*
|
|
* GLOBAL VARIABLE DEFINITIONS
|
|
****************************************************************************************
|
|
*/
|
|
|
|
/// Default State handlers definition
|
|
KE_MSG_HANDLER_TAB(basc){
|
|
{BASC_ENABLE_REQ, (ke_msg_func_t)basc_enable_req_handler},
|
|
{BASC_READ_INFO_REQ, (ke_msg_func_t)basc_read_info_req_handler},
|
|
{BASC_BATT_LEVEL_NTF_CFG_REQ,
|
|
(ke_msg_func_t)basc_batt_level_ntf_cfg_req_handler},
|
|
{GATTC_READ_IND, (ke_msg_func_t)gattc_read_ind_handler},
|
|
{GATTC_SDP_SVC_IND, (ke_msg_func_t)gattc_sdp_svc_ind_handler},
|
|
{GATTC_EVENT_IND, (ke_msg_func_t)gattc_event_ind_handler},
|
|
{GATTC_CMP_EVT, (ke_msg_func_t)gattc_cmp_evt_handler},
|
|
};
|
|
|
|
void basc_task_init(struct ke_task_desc *task_desc) {
|
|
// Get the address of the environment
|
|
struct basc_env_tag *basc_env = PRF_ENV_GET(BASC, basc);
|
|
|
|
task_desc->msg_handler_tab = basc_msg_handler_tab;
|
|
task_desc->msg_cnt = ARRAY_LEN(basc_msg_handler_tab);
|
|
task_desc->state = basc_env->state;
|
|
task_desc->idx_max = BASC_IDX_MAX;
|
|
}
|
|
|
|
#endif /* (BLE_BATT_CLIENT) */
|
|
|
|
/// @} BASCTASK
|