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

634 lines
24 KiB
C

/**
****************************************************************************************
* @addtogroup HRPCTASK
* @{
****************************************************************************************
*/
/*
* INCLUDE FILES
****************************************************************************************
*/
#include "rwip_config.h"
#include "hrp_common.h"
#if (BLE_HR_COLLECTOR)
#include "co_utils.h"
#include "gap.h"
#include "attm.h"
#include "hrpc_task.h"
#include "hrpc.h"
#include "gattc_task.h"
#include "ke_mem.h"
/*
* DEFINES
****************************************************************************************
*/
/// State machine used to retrieve heart rate service characteristics information
const struct prf_char_def hrpc_hrs_char[HRPC_CHAR_MAX] =
{
/// Heart Rate Measurement
[HRPC_CHAR_HR_MEAS] = {ATT_CHAR_HEART_RATE_MEAS,
ATT_MANDATORY,
ATT_CHAR_PROP_NTF},
/// Body Sensor Location
[HRPC_CHAR_BODY_SENSOR_LOCATION] = {ATT_CHAR_BODY_SENSOR_LOCATION,
ATT_OPTIONAL,
ATT_CHAR_PROP_RD},
/// Heart Rate Control Point
[HRPC_CHAR_HR_CNTL_POINT] = {ATT_CHAR_HEART_RATE_CNTL_POINT,
ATT_OPTIONAL,
ATT_CHAR_PROP_WR},
};
/// State machine used to retrieve heart rate service characteristic description information
const struct prf_char_desc_def hrpc_hrs_char_desc[HRPC_DESC_MAX] =
{
/// Heart Rate Measurement client config
[HRPC_DESC_HR_MEAS_CLI_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_MANDATORY, HRPC_CHAR_HR_MEAS},
};
/*
* LOCAL FUNCTIONS DEFINITIONS
****************************************************************************************
*/
/**
****************************************************************************************
* @brief Handles reception of the @ref GATTC_SDP_SVC_IND_HANDLER message.
* The handler stores the found service details for service discovery.
* @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_sdp_svc_ind_handler(ke_msg_id_t const msgid,
struct gattc_sdp_svc_ind const *ind,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
uint8_t state = ke_state_get(dest_id);
if(state == HRPC_DISCOVERING)
{
uint8_t conidx = KE_IDX_GET(dest_id);
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
ASSERT_INFO(hrpc_env != NULL, dest_id, src_id);
ASSERT_INFO(hrpc_env->env[conidx] != NULL, dest_id, src_id);
if(hrpc_env->env[conidx]->nb_svc == 0)
{
// Retrieve HRS characteristics and descriptors
prf_extract_svc_info(ind, HRPC_CHAR_MAX, &hrpc_hrs_char[0], &hrpc_env->env[conidx]->hrs.chars[0],
HRPC_DESC_MAX, &hrpc_hrs_char_desc[0], &hrpc_env->env[conidx]->hrs.descs[0]);
//Even if we get multiple responses we only store 1 range
hrpc_env->env[conidx]->hrs.svc.shdl = ind->start_hdl;
hrpc_env->env[conidx]->hrs.svc.ehdl = ind->end_hdl;
}
hrpc_env->env[conidx]->nb_svc++;
}
return (KE_MSG_CONSUMED);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref HRPC_ENABLE_REQ message.
* The handler enables the Heart Rate Profile Collector Role.
* @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 hrpc_enable_req_handler(ke_msg_id_t const msgid,
struct hrpc_enable_req const *param,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
// Status
uint8_t status = PRF_ERR_REQ_DISALLOWED;
// Get connection index
uint8_t conidx = KE_IDX_GET(dest_id);
uint8_t state = ke_state_get(dest_id);
// Heart Rate Profile Client Role Task Environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);;
ASSERT_INFO(hrpc_env != NULL, dest_id, src_id);
// Config connection, start discovering
if((state == HRPC_IDLE) && (hrpc_env->env[conidx] == NULL))
{
// allocate environment variable for task instance
hrpc_env->env[conidx] = (struct hrpc_cnx_env*) ke_malloc(sizeof(struct hrpc_cnx_env),KE_MEM_ATT_DB);
memset(hrpc_env->env[conidx], 0, sizeof(struct hrpc_cnx_env));
//Config connection, start discovering
if(param->con_type == PRF_CON_DISCOVERY)
{
//start discovering HRS on peer
prf_disc_svc_send(&(hrpc_env->prf_env), conidx, ATT_SVC_HEART_RATE);
hrpc_env->env[conidx]->last_uuid_req = ATT_SVC_HEART_RATE;
// Go to DISCOVERING state
ke_state_set(dest_id, HRPC_DISCOVERING);
}
//normal connection, get saved att details
else
{
hrpc_env->env[conidx]->hrs = param->hrs;
//send APP confirmation that can start normal connection to TH
hrpc_enable_rsp_send(hrpc_env, conidx, GAP_ERR_NO_ERROR);
}
status = GAP_ERR_NO_ERROR;
}
// send an error if request fails
if(status != GAP_ERR_NO_ERROR)
{
hrpc_enable_rsp_send(hrpc_env, conidx, status);
}
return (KE_MSG_CONSUMED);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref GATTC_CMP_EVT message.
* This generic event is received for different requests, so need to keep track.
* @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_cmp_evt_handler(ke_msg_id_t const msgid,
struct gattc_cmp_evt const *param,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
// Status
uint8_t status;
if (hrpc_env != NULL)
{
uint8_t conidx = KE_IDX_GET(dest_id);
uint8_t state = ke_state_get(dest_id);
if(state == HRPC_DISCOVERING)
{
status = param->status;
if ((status == ATT_ERR_ATTRIBUTE_NOT_FOUND)||
(status == ATT_ERR_NO_ERROR))
{
// Discovery
// check characteristic validity
if(hrpc_env->env[conidx]->nb_svc == 1)
{
status = prf_check_svc_char_validity(HRPC_CHAR_MAX,
hrpc_env->env[conidx]->hrs.chars,
hrpc_hrs_char);
}
// too much services
else if (hrpc_env->env[conidx]->nb_svc > 1)
{
status = PRF_ERR_MULTIPLE_SVC;
}
// no services found
else
{
status = PRF_ERR_STOP_DISC_CHAR_MISSING;
}
// check descriptor validity
if (status == GAP_ERR_NO_ERROR)
{
status = prf_check_svc_char_desc_validity(HRPC_DESC_MAX,
hrpc_env->env[conidx]->hrs.descs,
hrpc_hrs_char_desc,
hrpc_env->env[conidx]->hrs.chars);
}
}
hrpc_enable_rsp_send(hrpc_env, conidx, status);
}
else if(state == HRPC_BUSY)
{
switch(param->operation)
{
case GATTC_WRITE:
case GATTC_WRITE_NO_RESPONSE:
{
uint16_t rsp_msg_id = HRPC_CFG_INDNTF_RSP;
if(hrpc_env->env[conidx]->last_char_code != HRPC_DESC_HR_MEAS_CLI_CFG)
{
rsp_msg_id = HRPC_WR_CNTL_POINT_RSP;
}
struct hrpc_cfg_indntf_rsp *rsp = KE_MSG_ALLOC(rsp_msg_id,
prf_dst_task_get(&(hrpc_env->prf_env), conidx), dest_id,
hrpc_cfg_indntf_rsp);
rsp->status = param->status;
// Send the message
ke_msg_send(rsp);
}
break;
case GATTC_READ:
{
if(param->status != GAP_ERR_NO_ERROR)
{
// an error occurs while reading peer device attribute
prf_client_att_info_rsp(
(prf_env_t*) hrpc_env->env[conidx],
conidx,
HRPC_RD_CHAR_RSP,
param->status,
NULL);
}
}
break;
default: break;
}
ke_state_set(prf_src_task_get(&hrpc_env->prf_env, conidx), HRPC_IDLE);
}
}
return (KE_MSG_CONSUMED);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref HRPC_RD_DATETIME_REQ message.
* Check if the handle exists in profile(already discovered) and send request, otherwise
* error to APP.
* @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 hrpc_rd_char_req_handler(ke_msg_id_t const msgid,
struct hrpc_rd_char_req const *param,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
uint8_t state = ke_state_get(dest_id);
uint8_t status = PRF_ERR_REQ_DISALLOWED;
// Message status
uint8_t msg_status = KE_MSG_CONSUMED;
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
// Get connection index
uint8_t conidx = KE_IDX_GET(dest_id);
if(state == HRPC_IDLE)
{
ASSERT_INFO(hrpc_env != NULL, dest_id, src_id);
// environment variable not ready
if(hrpc_env->env[conidx] == NULL)
{
status = PRF_APP_ERROR;
}
else
{
uint16_t search_hdl = ATT_INVALID_SEARCH_HANDLE;
if(((param->char_code & HRPC_DESC_MASK) == HRPC_DESC_MASK) &&
((param->char_code & ~HRPC_DESC_MASK) < HRPC_DESC_MAX))
{
search_hdl = hrpc_env->env[conidx]->hrs.descs[param->char_code & ~HRPC_DESC_MASK].desc_hdl;
}
else if (param->char_code < HRPC_CHAR_MAX)
{
search_hdl = hrpc_env->env[conidx]->hrs.chars[param->char_code].val_hdl;
}
//check if handle is viable
if (search_hdl != ATT_INVALID_SEARCH_HANDLE)
{
// Store the command
hrpc_env->env[conidx]->last_char_code = param->char_code;
// Send the read request
prf_read_char_send(&(hrpc_env->prf_env), conidx,
hrpc_env->env[conidx]->hrs.svc.shdl,
hrpc_env->env[conidx]->hrs.svc.ehdl,
search_hdl);
// Go to the Busy state
ke_state_set(dest_id, HRPC_BUSY);
status = ATT_ERR_NO_ERROR;
}
else
{
status = PRF_ERR_INEXISTENT_HDL;
}
}
}
else if (state == HRPC_FREE)
{
status = GAP_ERR_DISCONNECTED;
}
else
{
// Another procedure is pending, keep the command for later
msg_status = KE_MSG_SAVED;
status = GAP_ERR_NO_ERROR;
}
if (status != GAP_ERR_NO_ERROR)
{
prf_client_att_info_rsp(&hrpc_env->prf_env, conidx, HRPC_RD_CHAR_RSP,
status, NULL);
}
return (msg_status);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref GATTC_READ_IND message.
* Generic event received after every simple read command sent to peer server.
* @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)
{
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
// Get connection index
uint8_t conidx = KE_IDX_GET(dest_id);
prf_client_att_info_rsp(&hrpc_env->prf_env, conidx, HRPC_RD_CHAR_RSP,
GAP_ERR_NO_ERROR, param);
return (KE_MSG_CONSUMED);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref HRPC_CFG_INDNTF_REQ message.
* It allows configuration of the peer ind/ntf/stop characteristic for a specified characteristic.
* Will return an error code if that cfg char does not exist.
* @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 hrpc_cfg_indntf_req_handler(ke_msg_id_t const msgid,
struct hrpc_cfg_indntf_req const *param,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
// Get connection index
uint8_t conidx = KE_IDX_GET(dest_id);
// Status
uint8_t status = PRF_ERR_REQ_DISALLOWED;
// Message status
uint8_t msg_status = KE_MSG_CONSUMED;
uint8_t state = ke_state_get(dest_id);
if(state == HRPC_IDLE)
{
if(hrpc_env->env[conidx] != NULL)
{
// Status
status = PRF_ERR_INVALID_PARAM;
// Check if parameter is OK
if((param->cfg_val == PRF_CLI_STOP_NTFIND) ||
(param->cfg_val == PRF_CLI_START_NTF))
{
// Status
status = PRF_ERR_INEXISTENT_HDL;
// Get handle of the client configuration
uint16_t cfg_hdl =
hrpc_env->env[conidx]->hrs.descs[HRPC_DESC_HR_MEAS_CLI_CFG].desc_hdl;
//check if the handle value exists
if (cfg_hdl != ATT_INVALID_SEARCH_HANDLE)
{
hrpc_env->env[conidx]->last_char_code = HRPC_DESC_HR_MEAS_CLI_CFG;
status = GAP_ERR_NO_ERROR;
// Go to the Busy state
ke_state_set(dest_id, HRPC_BUSY);
// Send GATT Write Request
prf_gatt_write_ntf_ind(&hrpc_env->prf_env, conidx, cfg_hdl, param->cfg_val);
}
}
}
else
{
status = PRF_APP_ERROR;
}
}
else if (state == HRPC_FREE)
{
status = GAP_ERR_DISCONNECTED;
}
else
{
// Another procedure is pending, keep the command for later
msg_status = KE_MSG_SAVED;
status = GAP_ERR_NO_ERROR;
}
if (status != GAP_ERR_NO_ERROR)
{
struct hrpc_cfg_indntf_rsp *rsp = KE_MSG_ALLOC(HRPC_CFG_INDNTF_RSP, src_id, dest_id, hrpc_cfg_indntf_rsp);
rsp->status = status;
// Send the message
ke_msg_send(rsp);
}
return (msg_status);
}
/**
****************************************************************************************
* @brief Handles reception of the @ref HRPC_WR_CNTL_POINT_REQ message.
* Check if the handle exists in profile(already discovered) and send request, otherwise
* error to APP.
* @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 hrpc_wr_cntl_point_req_handler(ke_msg_id_t const msgid,
struct hrpc_wr_cntl_point_req const *param,
ke_task_id_t const dest_id,
ke_task_id_t const src_id)
{
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
// Get connection index
uint8_t conidx = KE_IDX_GET(dest_id);
uint8_t status = GAP_ERR_NO_ERROR;
// Message status
uint8_t msg_status = KE_MSG_CONSUMED;
uint8_t state = ke_state_get(dest_id);
if(state == HRPC_IDLE)
{
//this is mandatory readable if it is included in the peer's DB
if(hrpc_env->env[conidx] != NULL)
{
//this is mandatory readable if it is included in the peer's DB
if (hrpc_env->env[conidx]->hrs.chars[HRPC_CHAR_HR_CNTL_POINT].char_hdl != ATT_INVALID_SEARCH_HANDLE)
{
if ((hrpc_env->env[conidx]->hrs.chars[HRPC_CHAR_HR_CNTL_POINT].prop & ATT_CHAR_PROP_WR) == ATT_CHAR_PROP_WR)
{
hrpc_env->env[conidx]->last_char_code = HRPC_CHAR_HR_CNTL_POINT;
// Send GATT Write Request
prf_gatt_write(&hrpc_env->prf_env, conidx, hrpc_env->env[conidx]->hrs.chars[HRPC_CHAR_HR_CNTL_POINT].val_hdl,
(uint8_t *)&param->val, sizeof(uint8_t), GATTC_WRITE);
// Go to the Busy state
ke_state_set(dest_id, HRPC_BUSY);
}
//write not allowed, so no point in continuing
else
{
status = PRF_ERR_NOT_WRITABLE;
}
}
//send app error indication for inexistent handle for this characteristic
else
{
status = PRF_ERR_INEXISTENT_HDL;
}
}
else
{
status = PRF_APP_ERROR;
}
}
else if (state == HRPC_FREE)
{
status = GAP_ERR_DISCONNECTED;
}
else
{
// Another procedure is pending, keep the command for later
msg_status = KE_MSG_SAVED;
status = GAP_ERR_NO_ERROR;
}
if(status != GAP_ERR_NO_ERROR)
{
struct hrpc_wr_cntl_point_rsp *rsp = KE_MSG_ALLOC(HRPC_WR_CNTL_POINT_RSP, src_id, dest_id, hrpc_wr_cntl_point_rsp);
rsp->status = status;
// Send the message
ke_msg_send(rsp);
}
return (msg_status);
}
/**
****************************************************************************************
* @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 conidx = KE_IDX_GET(dest_id);
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
if(hrpc_env != NULL)
{
if((param->handle == hrpc_env->env[conidx]->hrs.chars[HRPC_CHAR_HR_MEAS].val_hdl) &&
(param->type == GATTC_NOTIFY))
{
//build a HRPC_HR_MEAS_IND message with stable heart rate value code.
struct hrpc_hr_meas_ind * ind = KE_MSG_ALLOC(
HRPC_HR_MEAS_IND,
prf_dst_task_get(&(hrpc_env->prf_env), conidx),
prf_src_task_get(&(hrpc_env->prf_env), conidx),
hrpc_hr_meas_ind);
// unpack heart rate measurement.
hrpc_unpack_meas_value(&(ind->meas_val), (uint8_t*) param->value, param->length);
ke_msg_send(ind);
}
}
return (KE_MSG_CONSUMED);
}
/*
* GLOBAL VARIABLE DEFINITIONS
****************************************************************************************
*/
/// Specifies the default message handlers
KE_MSG_HANDLER_TAB(hrpc)
{
{GATTC_SDP_SVC_IND, (ke_msg_func_t)gattc_sdp_svc_ind_handler},
{HRPC_ENABLE_REQ, (ke_msg_func_t)hrpc_enable_req_handler},
{GATTC_CMP_EVT, (ke_msg_func_t)gattc_cmp_evt_handler},
{HRPC_CFG_INDNTF_REQ, (ke_msg_func_t)hrpc_cfg_indntf_req_handler},
{GATTC_EVENT_IND, (ke_msg_func_t)gattc_event_ind_handler},
{HRPC_RD_CHAR_REQ, (ke_msg_func_t)hrpc_rd_char_req_handler},
{GATTC_READ_IND, (ke_msg_func_t)gattc_read_ind_handler},
{HRPC_WR_CNTL_POINT_REQ, (ke_msg_func_t)hrpc_wr_cntl_point_req_handler},
};
void hrpc_task_init(struct ke_task_desc *task_desc)
{
// Get the address of the environment
struct hrpc_env_tag *hrpc_env = PRF_ENV_GET(HRPC, hrpc);
task_desc->msg_handler_tab = hrpc_msg_handler_tab;
task_desc->msg_cnt = ARRAY_LEN(hrpc_msg_handler_tab);
task_desc->state = hrpc_env->state;
task_desc->idx_max = HRPC_IDX_MAX;
}
#endif /* (BLE_HR_COLLECTOR) */
/// @} HRPCTASK