playground-esp32/esp-idf-opentherm
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This commit is contained in:
Attila Body 2025-07-01 13:59:48 +02:00
parent 8bc863b648
commit 381c994449
Signed by: abody
GPG key ID: BD0C6214E68FB5CF
5 changed files with 98 additions and 150 deletions
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173
components/opentherm/opentherm.c
View file

@ -5,10 +5,10 @@
* @licence MIT
*/
#include <stdio.h>
#include "esp_log.h"
#include "opentherm.h"
#include "esp_log.h"
#include "rom/ets_sys.h"
#include <stdio.h>
static const char *TAG = "ot-example";
@ -40,15 +40,12 @@ volatile byte esp_ot_response_bit_index;
* @return void
*/
esp_err_t esp_ot_init(
gpio_num_t _pin_in,
gpio_num_t _pin_out,
bool _esp_ot_is_slave,
gpio_num_t _pin_in, gpio_num_t _pin_out, bool _esp_ot_is_slave,
void (*esp_ot_process_responseCallback)(unsigned long, open_therm_response_status_t))
{
esp_err_t err = gpio_install_isr_service(0);
if (err != ESP_OK)
{
if (err != ESP_OK) {
ESP_LOGE("ISR", "Error with state %s", esp_err_to_name(err));
}
@ -99,15 +96,17 @@ esp_err_t esp_ot_init(
*/
void esp_ot_send_bit(bool high)
{
if (high)
if (high) {
esp_ot_set_active_state();
else
} else {
esp_ot_set_idle_state();
}
ets_delay_us(500);
if (high)
if (high) {
esp_ot_set_idle_state();
else
} else {
esp_ot_set_active_state();
}
ets_delay_us(500);
}
@ -116,9 +115,12 @@ void esp_ot_send_bit(bool high)
*
* @return long
*/
unsigned long esp_ot_build_set_boiler_status_request(bool enableCentralHeating, bool enableHotWater, bool enableCooling, bool enableOutsideTemperatureCompensation, bool enableCentralHeating2)
unsigned long esp_ot_build_set_boiler_status_request(
bool enableCentralHeating, bool enableHotWater, bool enableCooling, bool enableOutsideTemperatureCompensation,
bool enableCentralHeating2)
{
unsigned int data = enableCentralHeating | (enableHotWater << 1) | (enableCooling << 2) | (enableOutsideTemperatureCompensation << 3) | (enableCentralHeating2 << 4);
unsigned int data = enableCentralHeating | (enableHotWater << 1) | (enableCooling << 2) | (enableOutsideTemperatureCompensation << 3) |
(enableCentralHeating2 << 4);
data <<= 8;
return esp_ot_build_request(OT_READ_DATA, MSG_ID_STATUS, data);
}
@ -203,8 +205,7 @@ void esp_ot_activate_boiler()
*/
void esp_ot_process_response()
{
if (esp_ot_process_response_callback != NULL)
{
if (esp_ot_process_response_callback != NULL) {
// ESP_LOGI("PROCESS RESPONSE", "esp_ot_process_response, %ld, %d", response, esp_ot_response_status);
esp_ot_process_response_callback(response, esp_ot_response_status);
}
@ -245,13 +246,11 @@ open_therm_message_id_t esp_ot_get_data_id(unsigned long frame)
unsigned long esp_ot_build_request(open_therm_message_type_t type, open_therm_message_id_t id, unsigned int data)
{
unsigned long request = data;
if (type == OT_WRITE_DATA)
{
if (type == OT_WRITE_DATA) {
request |= 1ul << 28;
}
request |= ((unsigned long)id) << 16;
if (parity(request))
{
if (parity(request)) {
request |= (1ul << 31);
}
return request;
@ -269,8 +268,9 @@ unsigned long esp_ot_build_response(open_therm_message_type_t type, open_therm_m
unsigned long response = data;
response |= ((unsigned long)type) << 28;
response |= ((unsigned long)id) << 16;
if (parity(response))
if (parity(response)) {
response |= (1ul << 31);
}
return response;
}
@ -283,8 +283,9 @@ unsigned long esp_ot_build_response(open_therm_message_type_t type, open_therm_m
*/
bool esp_ot_is_valid_request(unsigned long request)
{
if (parity(request))
if (parity(request)) {
return false;
}
byte msgType = (request << 1) >> 29;
return msgType == (byte)OT_READ_DATA || msgType == (byte)OT_WRITE_DATA;
}
@ -298,8 +299,9 @@ bool esp_ot_is_valid_request(unsigned long request)
*/
bool esp_ot_is_valid_response(unsigned long response)
{
if (parity(response))
if (parity(response)) {
return false;
}
byte msgType = (response << 1) >> 29;
return msgType == (byte)OT_READ_ACK || msgType == (byte)OT_WRITE_ACK;
}
@ -314,10 +316,10 @@ bool esp_ot_is_valid_response(unsigned long response)
bool parity(unsigned long frame) // odd parity
{
byte p = 0;
while (frame > 0)
{
if (frame & 1)
while (frame > 0) {
if (frame & 1) {
p++;
}
frame = frame >> 1;
}
return (p & 1);
@ -386,60 +388,41 @@ float esp_ot_get_slave_ot_version()
void IRAM_ATTR esp_ot_handle_interrupt()
{
// ESP_DRAM_LOGI("esp_ot_handle_interrupt", "%ld", status);
if (esp_ot_is_ready())
{
if (esp_ot_is_slave && esp_ot_read_state() == 1)
{
if (esp_ot_is_ready()) {
if (esp_ot_is_slave && esp_ot_read_state() == 1) {
esp_ot_status = OT_RESPONSE_WAITING;
}
else
{
} else {
return;
}
}
unsigned long newTs = esp_timer_get_time();
if (esp_ot_status == OT_RESPONSE_WAITING)
{
if (esp_ot_read_state() == 1)
{
if (esp_ot_status == OT_RESPONSE_WAITING) {
if (esp_ot_read_state() == 1) {
// ESP_DRAM_LOGI("BIT", "Set start bit");
esp_ot_status = OT_RESPONSE_START_BIT;
esp_ot_response_timestamp = newTs;
}
else
{
} else {
// ESP_DRAM_LOGI("BIT", "Set OT_RESPONSE_INVALID");
esp_ot_status = OT_RESPONSE_INVALID;
esp_ot_response_timestamp = newTs;
}
}
else if (esp_ot_status == OT_RESPONSE_START_BIT)
{
if ((newTs - esp_ot_response_timestamp < 750) && esp_ot_read_state() == 0)
{
} else if (esp_ot_status == OT_RESPONSE_START_BIT) {
if ((newTs - esp_ot_response_timestamp < 750) && esp_ot_read_state() == 0) {
esp_ot_status = OT_RESPONSE_RECEIVING;
esp_ot_response_timestamp = newTs;
esp_ot_response_bit_index = 0;
}
else
{
} else {
esp_ot_status = OT_RESPONSE_INVALID;
esp_ot_response_timestamp = newTs;
}
}
else if (esp_ot_status == OT_RESPONSE_RECEIVING)
{
if ((newTs - esp_ot_response_timestamp) > 750)
{
if (esp_ot_response_bit_index < 32)
{
} else if (esp_ot_status == OT_RESPONSE_RECEIVING) {
if ((newTs - esp_ot_response_timestamp) > 750) {
if (esp_ot_response_bit_index < 32) {
response = (response << 1) | !esp_ot_read_state();
esp_ot_response_timestamp = newTs;
esp_ot_response_bit_index++;
}
else
{ // stop bit
} else { // stop bit
esp_ot_status = OT_RESPONSE_READY;
esp_ot_response_timestamp = newTs;
}
@ -459,35 +442,28 @@ void process()
unsigned long ts = esp_ot_response_timestamp;
PORT_EXIT_CRITICAL;
if (st == OT_READY)
{
if (st == OT_READY) {
return;
}
unsigned long newTs = esp_timer_get_time();
if (st != OT_NOT_INITIALIZED && st != OT_DELAY && (newTs - ts) > 1000000)
{
if (st != OT_NOT_INITIALIZED && st != OT_DELAY && (newTs - ts) > 1000000) {
esp_ot_status = OT_READY;
ESP_LOGI("SET STATUS", "set status to READY"); // here READY
esp_ot_response_status = OT_STATUS_TIMEOUT;
esp_ot_process_response();
}
else if (st == OT_RESPONSE_INVALID)
{
} else if (st == OT_RESPONSE_INVALID) {
ESP_LOGE("SET STATUS", "set status to OT_RESPONSE_INVALID"); // here OT_RESPONSE_INVALID
esp_ot_status = OT_DELAY;
esp_ot_response_status = OT_STATUS_INVALID;
esp_ot_process_response();
}
else if (st == OT_RESPONSE_READY)
{
} else if (st == OT_RESPONSE_READY) {
esp_ot_status = OT_DELAY;
esp_ot_response_status = (esp_ot_is_slave ? esp_ot_is_valid_request(response) : esp_ot_is_valid_response(response)) ? OT_STATUS_SUCCESS : OT_STATUS_INVALID;
esp_ot_response_status = (esp_ot_is_slave ? esp_ot_is_valid_request(response) : esp_ot_is_valid_response(response))
? OT_STATUS_SUCCESS
: OT_STATUS_INVALID;
esp_ot_process_response();
}
else if (st == OT_DELAY)
{
if ((newTs - ts) > (esp_ot_is_slave ? 20000 : 100000))
{
} else if (st == OT_DELAY) {
if ((newTs - ts) > (esp_ot_is_slave ? 20000 : 100000)) {
esp_ot_status = OT_READY;
}
}
@ -505,8 +481,7 @@ bool esp_ot_send_request_async(unsigned long request)
PORT_ENTER_CRITICAL;
const bool ready = esp_ot_is_ready();
PORT_EXIT_CRITICAL;
if (!ready)
{
if (!ready) {
return false;
}
PORT_ENTER_CRITICAL;
@ -518,8 +493,7 @@ bool esp_ot_send_request_async(unsigned long request)
// vTaskSuspendAll();
esp_ot_send_bit(1); // start bit
for (int i = 31; i >= 0; i--)
{
for (int i = 31; i >= 0; i--) {
esp_ot_send_bit(ESP_OT_BIT_READ(request, i));
}
esp_ot_send_bit(1); // stop bit
@ -542,13 +516,11 @@ bool esp_ot_send_request_async(unsigned long request)
*/
unsigned long esp_ot_send_request(unsigned long request)
{
if (!esp_ot_send_request_async(request))
{
if (!esp_ot_send_request_async(request)) {
return 0;
}
// ESP_LOGI("STATUS", "esp_ot_send_request with status %d", status); // here WAITING
while (!esp_ot_is_ready())
{
while (!esp_ot_is_ready()) {
process();
vPortYield();
}
@ -663,13 +635,11 @@ float esp_ot_get_float(const unsigned long response)
*/
unsigned int esp_ot_temperature_to_data(float temperature)
{
if (temperature < 0)
{
if (temperature < 0) {
temperature = 0;
}
if (temperature > 100)
{
if (temperature > 100) {
temperature = 100;
}
@ -689,13 +659,11 @@ unsigned int esp_ot_temperature_to_data(float temperature)
* @return long boiler status
*/
unsigned long esp_ot_set_boiler_status(
bool enableCentralHeating,
bool enableHotWater,
bool enableCooling,
bool enableOutsideTemperatureCompensation,
bool enableCentralHeating, bool enableHotWater, bool enableCooling, bool enableOutsideTemperatureCompensation,
bool enableCentralHeating2)
{
return esp_ot_send_request(esp_ot_build_set_boiler_status_request(enableCentralHeating, enableHotWater, enableCooling, enableOutsideTemperatureCompensation, enableCentralHeating2));
return esp_ot_send_request(esp_ot_build_set_boiler_status_request(
enableCentralHeating, enableHotWater, enableCooling, enableOutsideTemperatureCompensation, enableCentralHeating2));
}
/**
@ -765,9 +733,7 @@ esp_ot_min_max_t esp_ot_get_ch_upper_lower_bounds()
uint8_t min = (uint8_t)(result & 0x00FF);
uint8_t max = (uint8_t)((result & 0xFF00) >> 8);
esp_ot_min_max_t min_max = {
.min = min,
.max = max};
esp_ot_min_max_t min_max = {.min = min, .max = max};
return min_max;
}
@ -777,9 +743,7 @@ esp_ot_min_max_t esp_ot_get_dhw_upper_lower_bounds()
uint16_t result = esp_ot_is_valid_response(response) ? esp_ot_get_uint(response) : 0;
uint8_t min = (uint8_t)(result & 0x00FF);
uint8_t max = (uint8_t)((result & 0xFF00) >> 8);
esp_ot_min_max_t min_max = {
.min = min,
.max = max};
esp_ot_min_max_t min_max = {.min = min, .max = max};
return min_max;
}
@ -793,9 +757,7 @@ esp_ot_min_max_t esp_ot_get_heat_curve_ul_bounds()
uint16_t result = esp_ot_is_valid_response(response) ? esp_ot_get_uint(response) : 0;
uint8_t min = (uint8_t)(result & 0x00FF);
uint8_t max = (uint8_t)((result & 0xFF00) >> 8);
esp_ot_min_max_t min_max = {
.min = min,
.max = max};
esp_ot_min_max_t min_max = {.min = min, .max = max};
return min_max;
}
@ -809,9 +771,7 @@ esp_ot_cap_mod_t esp_ot_get_max_capacity_min_modulation()
uint16_t result = esp_ot_is_valid_response(response) ? esp_ot_get_uint(response) : 0;
uint8_t mod = (uint8_t)(result & 0x00FF);
uint8_t kw = (uint8_t)((result & 0xFF00) >> 8);
esp_ot_cap_mod_t cap_mod = {
.kw = kw,
.min_modulation = mod};
esp_ot_cap_mod_t cap_mod = {.kw = kw, .min_modulation = mod};
return cap_mod;
}
@ -948,8 +908,7 @@ float esp_ot_get_modulation()
bool esp_ot_set_modulation_level(int percent)
{
unsigned int data = percent;
unsigned long response = esp_ot_send_request(
esp_ot_build_request(OT_WRITE_DATA, MSG_ID_MAX_REL_MOD_LEVEL_SETTING, data));
unsigned long response = esp_ot_send_request(esp_ot_build_request(OT_WRITE_DATA, MSG_ID_MAX_REL_MOD_LEVEL_SETTING, data));
return esp_ot_is_valid_response(response);
}
@ -1001,8 +960,7 @@ bool esp_ot_send_response(unsigned long request)
PORT_ENTER_CRITICAL;
const bool ready = esp_ot_is_ready();
if (!ready)
{
if (!ready) {
PORT_EXIT_CRITICAL;
return false;
}
@ -1016,8 +974,7 @@ bool esp_ot_send_response(unsigned long request)
PORT_EXIT_CRITICAL;
esp_ot_send_bit(1); // start bit
for (int i = 31; i >= 0; i--)
{
for (int i = 31; i >= 0; i--) {
esp_ot_send_bit(ESP_OT_BIT_READ(request, i));
}
esp_ot_send_bit(1); // stop bit