[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>

firmware/targets/f18/api_symbols.csv

@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,12.2,,
+Version,+,13.0,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -910,6 +910,7 @@ Function,-,furi_hal_flash_write_dword,void,"size_t, uint64_t"
 Function,+,furi_hal_gpio_add_int_callback,void,"const GpioPin*, GpioExtiCallback, void*"
 Function,+,furi_hal_gpio_disable_int_callback,void,const GpioPin*
 Function,+,furi_hal_gpio_enable_int_callback,void,const GpioPin*
+Function,+,furi_hal_resources_get_ext_pin_number,int32_t,const GpioPin*
 Function,+,furi_hal_gpio_init,void,"const GpioPin*, const GpioMode, const GpioPull, const GpioSpeed"
 Function,+,furi_hal_gpio_init_ex,void,"const GpioPin*, const GpioMode, const GpioPull, const GpioSpeed, const GpioAltFn"
 Function,+,furi_hal_gpio_init_simple,void,"const GpioPin*, const GpioMode"

firmware/targets/f18/furi_hal/furi_hal_resources.c

@@ -199,3 +199,27 @@ void furi_hal_resources_init() {
     NVIC_SetPriority(EXTI15_10_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 5, 0));
     NVIC_EnableIRQ(EXTI15_10_IRQn);
 }
+
+int32_t furi_hal_resources_get_ext_pin_number(const GpioPin* gpio) {
+    // TODO: describe second ROW
+    if(gpio == &gpio_ext_pa7)
+        return 2;
+    else if(gpio == &gpio_ext_pa6)
+        return 3;
+    else if(gpio == &gpio_ext_pa4)
+        return 4;
+    else if(gpio == &gpio_ext_pb3)
+        return 5;
+    else if(gpio == &gpio_ext_pb2)
+        return 6;
+    else if(gpio == &gpio_ext_pc3)
+        return 7;
+    else if(gpio == &gpio_ext_pc1)
+        return 15;
+    else if(gpio == &gpio_ext_pc0)
+        return 16;
+    else if(gpio == &ibutton_gpio)
+        return 17;
+    else
+        return -1;
+}

firmware/targets/f18/furi_hal/furi_hal_resources.h

@@ -111,6 +111,13 @@ void furi_hal_resources_deinit_early();
 
 void furi_hal_resources_init();
 
+/**
+ * Get a corresponding external connector pin number for a gpio
+ * @param gpio GpioPin
+ * @return pin number or -1 if gpio is not on the external connector
+ */
+int32_t furi_hal_resources_get_ext_pin_number(const GpioPin* gpio);
+
 #ifdef __cplusplus
 }
 #endif