unleashed-firmware/lib/one_wire/ibutton/ibutton_worker.c
Georgii Surkov 7a3a1aaf0d
[FL-3057] Allow use of any suitable pin for 1-Wire devices (#2350)
* Add 1-wire thermometer example app stub
* Working 1-wire thermometer app
* Refactor app to use threads
* Clean up code, add comments
* Add CRC checking
* Increase update period
* Fix error in fbt
* Revert the old update period
* Use settable pin in onewire_host
* Use settable pin for onewire_slave
* Clear EXTI flag after callback, make private methods static in onewire_slave
* Do not hardcode GPIO pin number
* Remove iButton hal from furi_hal_rfid
* Remove most of furi_hal_ibutton
* Add some of furi_hal_ibutton back
* Slightly neater code
* Fix formatting
* Fix PVS-studio warnings
* Update CODEOWNERS
* Add furi_hal_gpio_get_ext_pin_number
* Create README.md
* FuriHal: move furi_hal_gpio_get_ext_pin_number to resources

---------

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2023-02-08 14:40:44 +09:00

193 lines
6.3 KiB
C

#include <furi.h>
#include <furi_hal.h>
#include <atomic.h>
#include "ibutton_worker_i.h"
typedef enum {
iButtonMessageEnd,
iButtonMessageStop,
iButtonMessageRead,
iButtonMessageWrite,
iButtonMessageEmulate,
iButtonMessageNotifyEmulate,
} iButtonMessageType;
typedef struct {
iButtonMessageType type;
union {
iButtonKey* key;
} data;
} iButtonMessage;
static int32_t ibutton_worker_thread(void* thread_context);
iButtonWorker* ibutton_worker_alloc() {
iButtonWorker* worker = malloc(sizeof(iButtonWorker));
worker->key_p = NULL;
worker->key_data = malloc(ibutton_key_get_max_size());
worker->host = onewire_host_alloc(&ibutton_gpio);
worker->slave = onewire_slave_alloc(&ibutton_gpio);
worker->writer = ibutton_writer_alloc(worker->host);
worker->device = onewire_device_alloc(0, 0, 0, 0, 0, 0, 0, 0);
worker->messages = furi_message_queue_alloc(1, sizeof(iButtonMessage));
worker->mode_index = iButtonWorkerIdle;
worker->read_cb = NULL;
worker->write_cb = NULL;
worker->emulate_cb = NULL;
worker->cb_ctx = NULL;
worker->thread = furi_thread_alloc_ex("iButtonWorker", 2048, ibutton_worker_thread, worker);
worker->protocols = protocol_dict_alloc(ibutton_protocols, iButtonProtocolMax);
return worker;
}
void ibutton_worker_read_set_callback(
iButtonWorker* worker,
iButtonWorkerReadCallback callback,
void* context) {
furi_check(worker->mode_index == iButtonWorkerIdle);
worker->read_cb = callback;
worker->cb_ctx = context;
}
void ibutton_worker_write_set_callback(
iButtonWorker* worker,
iButtonWorkerWriteCallback callback,
void* context) {
furi_check(worker->mode_index == iButtonWorkerIdle);
worker->write_cb = callback;
worker->cb_ctx = context;
}
void ibutton_worker_emulate_set_callback(
iButtonWorker* worker,
iButtonWorkerEmulateCallback callback,
void* context) {
furi_check(worker->mode_index == iButtonWorkerIdle);
worker->emulate_cb = callback;
worker->cb_ctx = context;
}
void ibutton_worker_read_start(iButtonWorker* worker, iButtonKey* key) {
iButtonMessage message = {.type = iButtonMessageRead, .data.key = key};
furi_check(
furi_message_queue_put(worker->messages, &message, FuriWaitForever) == FuriStatusOk);
}
void ibutton_worker_write_start(iButtonWorker* worker, iButtonKey* key) {
iButtonMessage message = {.type = iButtonMessageWrite, .data.key = key};
furi_check(
furi_message_queue_put(worker->messages, &message, FuriWaitForever) == FuriStatusOk);
}
void ibutton_worker_emulate_start(iButtonWorker* worker, iButtonKey* key) {
iButtonMessage message = {.type = iButtonMessageEmulate, .data.key = key};
furi_check(
furi_message_queue_put(worker->messages, &message, FuriWaitForever) == FuriStatusOk);
}
void ibutton_worker_stop(iButtonWorker* worker) {
iButtonMessage message = {.type = iButtonMessageStop};
furi_check(
furi_message_queue_put(worker->messages, &message, FuriWaitForever) == FuriStatusOk);
}
void ibutton_worker_free(iButtonWorker* worker) {
ibutton_writer_free(worker->writer);
onewire_slave_free(worker->slave);
onewire_host_free(worker->host);
onewire_device_free(worker->device);
protocol_dict_free(worker->protocols);
furi_message_queue_free(worker->messages);
furi_thread_free(worker->thread);
free(worker->key_data);
free(worker);
}
void ibutton_worker_start_thread(iButtonWorker* worker) {
furi_thread_start(worker->thread);
}
void ibutton_worker_stop_thread(iButtonWorker* worker) {
iButtonMessage message = {.type = iButtonMessageEnd};
furi_check(
furi_message_queue_put(worker->messages, &message, FuriWaitForever) == FuriStatusOk);
furi_thread_join(worker->thread);
}
void ibutton_worker_switch_mode(iButtonWorker* worker, iButtonWorkerMode mode) {
ibutton_worker_modes[worker->mode_index].stop(worker);
worker->mode_index = mode;
ibutton_worker_modes[worker->mode_index].start(worker);
}
void ibutton_worker_notify_emulate(iButtonWorker* worker) {
iButtonMessage message = {.type = iButtonMessageNotifyEmulate};
// we're running in an interrupt context, so we can't wait
// and we can drop message if queue is full, that's ok for that message
furi_message_queue_put(worker->messages, &message, 0);
}
void ibutton_worker_set_key_p(iButtonWorker* worker, iButtonKey* key) {
worker->key_p = key;
}
static int32_t ibutton_worker_thread(void* thread_context) {
iButtonWorker* worker = thread_context;
bool running = true;
iButtonMessage message;
FuriStatus status;
ibutton_worker_modes[worker->mode_index].start(worker);
while(running) {
status = furi_message_queue_get(
worker->messages, &message, ibutton_worker_modes[worker->mode_index].quant);
if(status == FuriStatusOk) {
switch(message.type) {
case iButtonMessageEnd:
ibutton_worker_switch_mode(worker, iButtonWorkerIdle);
ibutton_worker_set_key_p(worker, NULL);
running = false;
break;
case iButtonMessageStop:
ibutton_worker_switch_mode(worker, iButtonWorkerIdle);
ibutton_worker_set_key_p(worker, NULL);
break;
case iButtonMessageRead:
ibutton_worker_set_key_p(worker, message.data.key);
ibutton_worker_switch_mode(worker, iButtonWorkerRead);
break;
case iButtonMessageWrite:
ibutton_worker_set_key_p(worker, message.data.key);
ibutton_worker_switch_mode(worker, iButtonWorkerWrite);
break;
case iButtonMessageEmulate:
ibutton_worker_set_key_p(worker, message.data.key);
ibutton_worker_switch_mode(worker, iButtonWorkerEmulate);
break;
case iButtonMessageNotifyEmulate:
if(worker->emulate_cb) {
worker->emulate_cb(worker->cb_ctx, true);
}
break;
}
} else if(status == FuriStatusErrorTimeout) {
ibutton_worker_modes[worker->mode_index].tick(worker);
} else {
furi_crash("iButton worker error");
}
}
ibutton_worker_modes[worker->mode_index].stop(worker);
return 0;
}