Furi: core refactoring and CMSIS removal part 2 (#1410)

* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>

firmware/targets/furi_hal_include/furi_hal.h

@@ -9,6 +9,7 @@
 template <unsigned int N> struct STOP_EXTERNING_ME {};
 #endif
 
+#include "furi_hal_cortex.h"
 #include "furi_hal_clock.h"
 #include "furi_hal_crypto.h"
 #include "furi_hal_console.h"
@@ -21,7 +22,6 @@ template <unsigned int N> struct STOP_EXTERNING_ME {};
 #include "furi_hal_speaker.h"
 #include "furi_hal_gpio.h"
 #include "furi_hal_light.h"
-#include "furi_hal_delay.h"
 #include "furi_hal_power.h"
 #include "furi_hal_interrupt.h"
 #include "furi_hal_version.h"

firmware/targets/furi_hal_include/furi_hal_cortex.h

@@ -0,0 +1,32 @@
+/**
+ * @file furi_hal_cortex.h
+ * ARM Cortex HAL
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Early init stage for cortex
+ */
+void furi_hal_cortex_init_early();
+
+/** Microseconds delay
+ *
+ * @param[in]  microseconds  The microseconds to wait
+ */
+void furi_hal_cortex_delay_us(uint32_t microseconds);
+
+/** Get instructions per microsecond count
+ *
+ * @return     instructions per microsecond count
+ */
+uint32_t furi_hal_cortex_instructions_per_microsecond();
+
+#ifdef __cplusplus
+}
+#endif

firmware/targets/furi_hal_include/furi_hal_delay.h

@@ -1,51 +0,0 @@
-/**
- * @file furi_hal_delay.h
- * Delay HAL API
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** Init Delay subsystem */
-void furi_hal_delay_init();
-
-/** Get instructions per microsecond count */
-uint32_t furi_hal_delay_instructions_per_microsecond();
-
-/** Get current tick counter
- *
- * System uptime, may overflow.
- *
- * @return     Current ticks in milliseconds
- */
-uint32_t furi_hal_get_tick(void);
-
-/** Convert milliseconds to ticks
- *
- * @param[in]   milliseconds    time in milliseconds
- * @return      time in ticks
- */
-uint32_t furi_hal_ms_to_ticks(float milliseconds);
-
-/** Delay in milliseconds
- * @warning    Cannot be used from ISR
- *
- * @param[in]  milliseconds  milliseconds to wait
- */
-void furi_hal_delay_ms(float milliseconds);
-
-/** Delay in microseconds
- *
- * @param[in]  microseconds  microseconds to wait
- */
-void furi_hal_delay_us(float microseconds);
-
-#ifdef __cplusplus
-}
-#endif