247 lines
6.9 KiB
C
247 lines
6.9 KiB
C
#include <stdint.h>
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#include "ble.h"
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#include "host/ble_att.h"
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#include "host/ble_gatt.h"
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#include "host/ble_hs_mbuf.h"
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#include "nimble/hci_common.h"
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#include "os/os_mbuf.h"
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#include "esp_log.h"
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#include "gatt_svcs.h"
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#include "BLE_UUID.h"
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#include "configuration.h"
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static struct char_pres_format current_char_pres_format = {
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.format = FORMAT_UINT32,
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.exponent = -6,
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.unit = AMPERE_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static struct char_pres_format raw_voltage_char_pres_format = {
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.format = FORMAT_UINT32,
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.exponent = -3,
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.unit = VOLTS_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static struct char_pres_format refrsh_rate_char_pres_format = {
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.format = FORMAT_UINT32,
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.exponent = -3,
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.unit = SECONDS_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static struct char_pres_format zero_cali_nsamp_char_pres_format = {
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.format = FORMAT_UINT16,
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.exponent = 0,
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.unit = UNITLESS_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static struct char_pres_format auto_range_char_pres_format = {
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.format = FORMAT_BOOL,
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.exponent = 0,
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.unit = UNITLESS_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static struct char_pres_format current_range_char_pres_format = {
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.format = FORMAT_INT32,
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.exponent = 0,
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.unit = UNITLESS_UNIT_UUID,
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.namespc = 1,
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.descrH = NSP_DESC_MAIN & 0xff,
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.descrL = (NSP_DESC_MAIN>>8) & 0xff,
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};
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static int gatt_svr_chr_write(struct os_mbuf *om, uint16_t min_len, uint16_t max_len,
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void *dst, uint16_t *len)
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{
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uint16_t om_len;
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int rc;
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om_len = OS_MBUF_PKTLEN(om);
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if (om_len < min_len || om_len > max_len) {
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return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
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}
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rc = ble_hs_mbuf_to_flat(om, dst, max_len, len);
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if (rc != 0) {
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return BLE_ATT_ERR_UNLIKELY;
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}
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return 0;
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}
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int gatt_char_access_cs(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg){
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int rc = 0;
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switch(ctxt->op){
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case BLE_GATT_ACCESS_OP_READ_CHR:
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;
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struct ble_context *c_ctxt = arg;
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uint16_t id = c_ctxt->handle;
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uint32_t data = c_ctxt->meas->amperes[id];
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rc = os_mbuf_append(ctxt->om, &data, sizeof(data));
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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rc = os_mbuf_append(ctxt->om, ¤t_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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}
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return rc ? BLE_ATT_ERR_INSUFFICIENT_RES : 0;
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}
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int gatt_char_access_ev(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg){
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int rc = 0;
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switch(ctxt->op){
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case BLE_GATT_ACCESS_OP_READ_CHR:
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;
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struct ble_context *c_ctxt = arg;
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uint16_t id = c_ctxt->handle;
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uint32_t data = c_ctxt->meas->raw_volt[id];
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rc = os_mbuf_append(ctxt->om, &data, sizeof(data));
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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rc = os_mbuf_append(ctxt->om, &raw_voltage_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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}
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return rc ? BLE_ATT_ERR_INSUFFICIENT_RES : 0;
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}
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int gatt_char_access_sampling_rate(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg){
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int rc = 0;
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struct ble_context *c_ctxt = arg;
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switch(ctxt->op){
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case BLE_GATT_ACCESS_OP_READ_CHR:
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;
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rc = os_mbuf_append(ctxt->om, &c_ctxt->conf->refresh_delay, sizeof(c_ctxt->conf->refresh_delay));
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break;
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case BLE_GATT_ACCESS_OP_WRITE_CHR:
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;
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uint32_t data;
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rc = gatt_svr_chr_write(ctxt->om, sizeof(data), sizeof(data), &data, NULL);
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ESP_LOGI("BLE", "Refresh rate : %lu", data);
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c_ctxt->conf->refresh_delay = data;
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save_configuration_to_nvs(c_ctxt->conf);
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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rc = os_mbuf_append(ctxt->om, &refrsh_rate_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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}
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return rc ? BLE_ATT_ERR_INSUFFICIENT_RES : 0;
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}
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int gatt_char_access_zeros_cali(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg){
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int rc = 0;
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struct ble_context* c_ctxt = arg;
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switch(ctxt->op){
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case BLE_GATT_ACCESS_OP_WRITE_CHR:
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{
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switch (c_ctxt->handle){
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case ZEROS_CALI_ID:
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start_zero_cali(c_ctxt->meas_ctxt, c_ctxt->conf->zero_cali_nsamp, c_ctxt->conf->offsets);
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save_configuration_to_nvs(c_ctxt->conf);
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break;
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case ZEROS_CALI_NSAMP_ID:
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;
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uint16_t data;
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rc = gatt_svr_chr_write(ctxt->om, sizeof(data), sizeof(data), &data, NULL);
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c_ctxt->conf->zero_cali_nsamp = data;
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save_configuration_to_nvs(c_ctxt->conf);
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break;
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}
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}
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break;
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case BLE_GATT_ACCESS_OP_READ_CHR:
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;
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rc = os_mbuf_append(ctxt->om, &c_ctxt->conf->zero_cali_nsamp, sizeof(c_ctxt->conf->zero_cali_nsamp));
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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;
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rc = os_mbuf_append(ctxt->om, &zero_cali_nsamp_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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}
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return rc ? BLE_ATT_ERR_INSUFFICIENT_RES : 0;
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}
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int gatt_char_access_range(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg){
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int rc = 0;
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struct ble_context* c_ctxt = arg;
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switch(ctxt->op){
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case BLE_GATT_ACCESS_OP_WRITE_CHR:
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{
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switch (c_ctxt->handle){
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case AUTO_RANGE_ID:
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;
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uint8_t state;
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rc = gatt_svr_chr_write(ctxt->om, sizeof(state), sizeof(state), &state, NULL);
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c_ctxt->conf->auto_range = state;
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save_configuration_to_nvs(c_ctxt->conf);
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break;
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case CURRENT_RANGE_ID:
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;
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int data;
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rc = gatt_svr_chr_write(ctxt->om, sizeof(data), sizeof(data), &data, NULL);
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ESP_LOGI(TAG, "new range %d", data);
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c_ctxt->conf->range = data;
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activate_range(c_ctxt->conf->ranges, data, c_ctxt->conf->ranges_num - 1);
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save_configuration_to_nvs(c_ctxt->conf);
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break;
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}
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}
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break;
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case BLE_GATT_ACCESS_OP_READ_CHR:
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{
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switch (c_ctxt->handle){
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case AUTO_RANGE_ID:
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;
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rc = os_mbuf_append(ctxt->om, &c_ctxt->conf->auto_range, sizeof(c_ctxt->conf->auto_range));
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break;
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case CURRENT_RANGE_ID:
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rc = os_mbuf_append(ctxt->om, &c_ctxt->conf->range, sizeof(c_ctxt->conf->range));
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;
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break;
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}
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}
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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{
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switch (c_ctxt->handle){
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case AUTO_RANGE_ID:
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;
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rc = os_mbuf_append(ctxt->om, &auto_range_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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case CURRENT_RANGE_ID:
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;
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rc = os_mbuf_append(ctxt->om, ¤t_range_char_pres_format, CHAR_PRESENTATION_FORMAT_SIZE);
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break;
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}
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}
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break;
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}
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return rc ? BLE_ATT_ERR_INSUFFICIENT_RES : 0;
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}
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