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gatt_server example receive prepare write

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This commit is contained in:
zhiweijian
2017-05-08 15:45:11 +08:00
parent 972d1d9242
commit 4ffb4911e1
4 changed files with 136 additions and 2 deletions
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82
examples/bluetooth/gatt_server/main/gatts_demo.c
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@@ -53,6 +53,8 @@ static void gatts_profile_b_event_handler(esp_gatts_cb_event_t event, esp_gatt_i
#define GATTS_DEMO_CHAR_VAL_LEN_MAX 0x40
#define PREPARE_BUF_MAX_SIZE 1024
uint8_t char1_str[] = {0x11,0x22,0x33};
esp_attr_value_t gatts_demo_char1_val =
{
@@ -139,6 +141,17 @@ static struct gatts_profile_inst gl_profile_tab[PROFILE_NUM] = {
},
};
typedef struct {
uint8_t *prepare_buf;
int prepare_len;
} prepare_type_env_t;
static prepare_type_env_t a_prepare_write_env;
static prepare_type_env_t b_prepare_write_env;
void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);
void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);
static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
switch (event) {
@@ -170,6 +183,63 @@ static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param
}
}
void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
esp_gatt_status_t status = ESP_GATT_OK;
if (param->write.need_rsp){
if (param->write.is_prep){
if (prepare_write_env->prepare_buf == NULL) {
prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE*sizeof(uint8_t));
prepare_write_env->prepare_len = 0;
if (prepare_write_env->prepare_buf == NULL) {
LOG_ERROR("Gatt_server prep no mem\n");
status = ESP_GATT_NO_RESOURCES;
}
} else {
if(param->write.offset > PREPARE_BUF_MAX_SIZE) {
status = ESP_GATT_INVALID_OFFSET;
} else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
status = ESP_GATT_INVALID_ATTR_LEN;
}
}
esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
gatt_rsp->attr_value.len = param->write.len;
gatt_rsp->attr_value.handle = param->write.handle;
gatt_rsp->attr_value.offset = param->write.offset;
gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
if (response_err != ESP_OK){
LOG_ERROR("Send response error\n");
}
free(gatt_rsp);
if (status != ESP_GATT_OK){
return;
}
memcpy(prepare_write_env->prepare_buf + param->write.offset,
param->write.value,
param->write.len);
prepare_write_env->prepare_len += param->write.len;
}else{
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, NULL);
}
}
}
void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC){
esp_log_buffer_hex(GATTS_TAG, (char *)prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
}else{
ESP_LOGI(GATTS_TAG,"ESP_GATT_PREP_WRITE_CANCEL");
}
if (prepare_write_env->prepare_buf) {
free(prepare_write_env->prepare_buf);
prepare_write_env->prepare_buf = NULL;
}
prepare_write_env->prepare_len = 0;
}
static void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param) {
switch (event) {
case ESP_GATTS_REG_EVT:
@@ -205,10 +275,14 @@ static void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_i
case ESP_GATTS_WRITE_EVT: {
ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %d, handle %d\n", param->write.conn_id, param->write.trans_id, param->write.handle);
ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, value len %d, value %08x\n", param->write.len, *(uint32_t *)param->write.value);
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_write_event_env(gatts_if, &a_prepare_write_env, param);
break;
}
case ESP_GATTS_EXEC_WRITE_EVT:
ESP_LOGI(GATTS_TAG,"ESP_GATTS_EXEC_WRITE_EVT");
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_exec_write_event_env(&a_prepare_write_env, param);
break;
case ESP_GATTS_MTU_EVT:
case ESP_GATTS_CONF_EVT:
case ESP_GATTS_UNREG_EVT:
@@ -308,10 +382,14 @@ static void gatts_profile_b_event_handler(esp_gatts_cb_event_t event, esp_gatt_i
case ESP_GATTS_WRITE_EVT: {
ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %d, handle %d\n", param->write.conn_id, param->write.trans_id, param->write.handle);
ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, value len %d, value %08x\n", param->write.len, *(uint32_t *)param->write.value);
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_write_event_env(gatts_if, &b_prepare_write_env, param);
break;
}
case ESP_GATTS_EXEC_WRITE_EVT:
ESP_LOGI(GATTS_TAG,"ESP_GATTS_EXEC_WRITE_EVT");
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_exec_write_event_env(&b_prepare_write_env, param);
break;
case ESP_GATTS_MTU_EVT:
case ESP_GATTS_CONF_EVT:
case ESP_GATTS_UNREG_EVT: