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/*
* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _PICO_PLATFORM_H_
#define _PICO_PLATFORM_H_
#include "pico/types.h"
#include "hardware/platform_defs.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \file platform.h
* \defgroup pico_platform pico_platform
* Compiler definitions for the selected PICO_PLATFORM
*/
#define __isr
#define __not_in_flash(group) __attribute__((section(".time_critical." group)))
#define __not_in_flash_func(x) __not_in_flash(__STRING(x)) x
#define __no_inline_not_in_flash_func(x) __attribute__((noinline)) __not_in_flash_func(x)
// For use with PICO_COPY_TO_RAM:
#define __in_flash(group) __attribute__((section(".flashdata" group)))
#define __scratch_x(group) __attribute__((section(".scratch_x." group)))
#define __scratch_y(group) __attribute__((section(".scratch_y." group)))
#define __time_critical_func(x) __not_in_flash_func(x)
#define __after_data(group) __attribute__((section(".after_data." group)))
#define __packed_aligned __packed __aligned(4)
#ifndef count_of
#define count_of(a) (sizeof(a)/sizeof((a)[0]))
#endif
#ifndef MAX
#define MAX(a, b) ((a)>(b)?(a):(b))
#endif
#ifndef MIN
#define MIN(a, b) ((b)>(a)?(a):(b))
#endif
#define __uninitialized_ram(group) __attribute__((section(".uninitialized_ram." #group))) group
inline static void __breakpoint(void) {
__asm__("bkpt #0");
}
// return a 32 bit handle for a raw ptr; DMA chaining for example embeds pointers in 32 bit values
// which of course does not work if we're running the code natively on a 64 bit platforms. Therefore
// we provide this macro which allows that code to provide a 64->32 bit mapping in host mode
#define host_safe_hw_ptr(x) ((uintptr_t)(x))
void __attribute__((noreturn)) panic_unsupported(void);
void __attribute__((noreturn)) panic(const char *fmt, ...);
// PICO_CONFIG: PICO_NO_FPGA_CHECK, Remove the FPGA platform check for small code size reduction, type=bool, default=0, advanced=true, group=pico_runtime
#ifndef PICO_NO_FPGA_CHECK
#define PICO_NO_FPGA_CHECK 0
#endif
#if PICO_NO_FPGA_CHECK
static inline bool running_on_fpga(void) {return false;}
#else
bool running_on_fpga(void);
#endif
uint8_t rp2040_chip_version(void);
static inline uint8_t rp2040_rom_version(void) {
return *(uint8_t*)0x13;
}
// called by any tight hardware polling loop... nominally empty, but can be modified for debugging
static inline void tight_loop_contents(void) {}
// return a 32 bit handle for a raw ptr; DMA chaining for example embeds pointers in 32 bit values
// which of course does not work if we're running the code natively on a 64 bit platform for testing.
// Therefore we provide this function which allows the host runtime to provide a mapping
#define native_safe_hw_ptr(x) ((uintptr_t)(x))
// multiplies a by b using multiply instruction using the ARM mul instruction regardless of values
inline static int32_t __mul_instruction(int32_t a, int32_t b) {
asm ("mul %0, %1" : "+l" (a) : "l" (b) : );
return a;
}
#define WRAPPER_FUNC(x) __wrap_ ## x
#define REAL_FUNC(x) __real_ ## x
// macro to multiply value a by possibly constant value b
// if b is known to be constant and not zero or a power of 2, then a mul instruction is used rather than gcc's default
#define __fast_mul(a, b) __builtin_choose_expr(__builtin_constant_p(b) && !__builtin_constant_p(a), \
(__builtin_popcount(b) >= 2 ? __mul_instruction(a,b) : (a)*(b)), \
(a)*(b))
#define __check_type_compatible(type_a, type_b) static_assert(__builtin_types_compatible_p(type_a, type_b), __STRING(type_a) " is not compatible with " __STRING(type_b));
#ifdef __cplusplus
}
#endif
#endif
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