165 lines
6.1 KiB
C
165 lines
6.1 KiB
C
/**
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****************************************************************************************
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* @addtogroup PRF_UTILS
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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_CLIENT_PRF)
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#include <stdint.h>
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#include <stdbool.h>
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#include "ke_task.h"
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#include "co_error.h"
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#include "attm.h"
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#include "gattc_task.h"
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#include "prf_utils_128.h"
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#include "ke_mem.h"
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#include "gap.h"
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#include "gapc.h"
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#endif //(BLE_CLIENT_PRF)
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#if (BLE_CLIENT_PRF)
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void prf_disc_svc_send_128(prf_env_t *prf_env, uint8_t conidx, uint8_t *uuid_128)
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{
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//send GATT discover primary services by UUID request: find by type request
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struct gattc_disc_cmd * svc_req = KE_MSG_ALLOC_DYN(GATTC_SDP_SVC_DISC_CMD,
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KE_BUILD_ID(TASK_GATTC, conidx), prf_src_task_get(prf_env, conidx),
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gattc_disc_cmd, ATT_UUID_128_LEN);
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//gatt request type: by UUID
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svc_req->operation = GATTC_SDP_DISC_SVC;
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//start handle;
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svc_req->start_hdl = ATT_1ST_REQ_START_HDL;
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//end handle
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svc_req->end_hdl = ATT_1ST_REQ_END_HDL;
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// UUID search
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svc_req->uuid_len = ATT_UUID_128_LEN;
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// set 128 bit UUID for searching
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memcpy(&svc_req->uuid[0], uuid_128, (sizeof(uint8_t) * ATT_UUID_128_LEN));
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//send the message to GATT, which will send back the response when it gets it
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ke_msg_send(svc_req);
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}
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uint8_t prf_check_svc_char_validity_128(uint8_t nb_chars,
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const struct prf_char_inf* chars,
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const struct prf_char_def_128* chars_req)
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{
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uint8_t status = GAP_ERR_NO_ERROR;
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uint8_t i;
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for(i = 0; ((i < nb_chars) && (status == GAP_ERR_NO_ERROR)); i++)
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{
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if (chars[i].char_hdl == ATT_INVALID_HANDLE)
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{
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//If Characteristic is not present, check requirements
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if (chars_req[i].req_flag == ATT_MANDATORY)
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{
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status = PRF_ERR_STOP_DISC_CHAR_MISSING;
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}
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}
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else
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{
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//If Characteristic is present, check properties
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if((chars[i].prop & chars_req[i].prop_mand) != chars_req[i].prop_mand)
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{
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status = PRF_ERR_STOP_DISC_WRONG_CHAR_PROP;
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}
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}
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}
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return status;
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}
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void prf_extract_svc_info_128(const struct gattc_sdp_svc_ind* param,
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uint8_t nb_chars, const struct prf_char_def_128* chars_req, struct prf_char_inf* chars,
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uint8_t nb_descs, const struct prf_char_desc_def* descs_req, struct prf_char_desc_inf* descs)
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{
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//Counters
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uint8_t svc_char;
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uint8_t svc_desc;
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uint8_t fnd_att;
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for (fnd_att=0; fnd_att< (param->end_hdl - param->start_hdl); fnd_att++)
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{
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if(param->info[fnd_att].att_type == GATTC_SDP_ATT_CHAR)
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{
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uint16_t char_hdl = param->start_hdl+ 1 + fnd_att;
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uint16_t val_hdl = param->info[fnd_att].att_char.handle;
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uint8_t val_prop = param->info[fnd_att].att_char.prop;
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uint8_t char_idx = fnd_att;
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// check that value handle is in a valid range
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if((val_hdl <= param->end_hdl) && (val_hdl > (param->start_hdl + fnd_att)))
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{
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// retrieve value index
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uint8_t val_idx = (val_hdl - param->start_hdl - 1);
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//Look over requested characteristics
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for (svc_char=0; svc_char<nb_chars ; svc_char++)
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{
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// check if attribute is valid
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if((chars[svc_char].char_hdl == ATT_INVALID_HDL)
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&& attm_uuid_comp((uint8_t*)param->info[val_idx].att.uuid, ATT_UUID_128_LEN,
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(uint8_t*)chars_req[svc_char].uuid, ATT_UUID_128_LEN))
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{
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//Save properties and handles
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chars[svc_char].char_hdl = char_hdl;
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chars[svc_char].val_hdl = val_hdl;
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chars[svc_char].prop = val_prop;
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// find end of characteristic handle and discover descriptors
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do
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{
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fnd_att++;
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// found a descriptor
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if(param->info[fnd_att].att_type == GATTC_SDP_ATT_DESC)
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{
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//Retrieve characteristic descriptor handle using UUID
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for(svc_desc = 0; svc_desc<nb_descs; svc_desc++)
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{
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// check if it's expected descriptor
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if ((descs[svc_desc].desc_hdl == ATT_INVALID_HANDLE)
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&& (descs_req[svc_desc].char_code == svc_char)
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&& (attm_uuid16_comp((uint8_t*)param->info[fnd_att].att.uuid,
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param->info[fnd_att].att.uuid_len, descs_req[svc_desc].uuid)))
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{
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descs[svc_desc].desc_hdl = param->start_hdl + 1 + fnd_att;
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// search for next descriptor
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break;
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}
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}
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}
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} while(((param->start_hdl+ 1 + fnd_att) <= param->end_hdl)
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&& (param->info[fnd_att].att_type != GATTC_SDP_ATT_CHAR)
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&& (param->info[fnd_att].att_type != GATTC_SDP_INC_SVC));
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// return to previous valid value
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fnd_att--;
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// previous handle was end of the characteristic
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chars[svc_char].char_ehdl_off = fnd_att - char_idx;
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// search next characteristic
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break;
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}
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}
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}
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}
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}
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}
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#endif /*(BLE_SAMPLE128_CLIENT) */
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/// @} PRF_UTILS
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