mirror of
https://github.com/keirf/greaseweazle-firmware.git
synced 2025-10-31 11:06:44 -07:00
144 lines
3.9 KiB
C
144 lines
3.9 KiB
C
/*
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* util.h
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*
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* Utility definitions.
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*
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* Written & released by Keir Fraser <keir.xen@gmail.com>
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*
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* This is free and unencumbered software released into the public domain.
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* See the file COPYING for more details, or visit <http://unlicense.org>.
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*/
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#ifndef NDEBUG
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#define ASSERT(p) do { if (!(p)) illegal(); } while (0)
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#else
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#define ASSERT(p) do { if (0 && (p)) {} } while (0)
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#endif
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typedef char bool_t;
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#define TRUE 1
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#define FALSE 0
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#ifndef offsetof
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#define offsetof(a,b) __builtin_offsetof(a,b)
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#endif
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#define container_of(ptr, type, member) ({ \
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typeof( ((type *)0)->member ) *__mptr = (ptr); \
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(type *)( (char *)__mptr - offsetof(type,member) );})
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define min(x,y) ({ \
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const typeof(x) _x = (x); \
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const typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x < _y ? _x : _y; })
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#define max(x,y) ({ \
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const typeof(x) _x = (x); \
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const typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x > _y ? _x : _y; })
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#define min_t(type,x,y) \
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({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
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#define max_t(type,x,y) \
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({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
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/* Fast memset/memcpy: Pointers must be word-aligned, count must be a non-zero
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* multiple of 32 bytes. */
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void memset_fast(void *s, int c, size_t n);
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void memcpy_fast(void *dest, const void *src, size_t n);
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void *memset(void *s, int c, size_t n);
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void *memcpy(void *dest, const void *src, size_t n);
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void *memmove(void *dest, const void *src, size_t n);
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int memcmp(const void *s1, const void *s2, size_t n);
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size_t strlen(const char *s);
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size_t strnlen(const char *s, size_t maxlen);
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int strcmp(const char *s1, const char *s2);
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int strncmp(const char *s1, const char *s2, size_t n);
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int vsnprintf(char *str, size_t size, const char *format, va_list ap)
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__attribute__ ((format (printf, 3, 0)));
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int snprintf(char *str, size_t size, const char *format, ...)
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__attribute__ ((format (printf, 3, 4)));
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#define le16toh(x) (x)
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#define le32toh(x) (x)
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#define htole16(x) (x)
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#define htole32(x) (x)
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#define be16toh(x) _rev16(x)
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#define be32toh(x) _rev32(x)
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#define htobe16(x) _rev16(x)
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#define htobe32(x) _rev32(x)
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/* Board-specific callouts */
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void board_init(void);
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void act_led(bool_t on);
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#ifndef NDEBUG
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/* Serial console control */
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void console_init(void);
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void console_crash_on_input(void);
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/* Serial console output */
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int vprintk(const char *format, va_list ap)
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__attribute__ ((format (printf, 1, 0)));
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int printk(const char *format, ...)
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__attribute__ ((format (printf, 1, 2)));
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#else /* NDEBUG */
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#define console_init() ((void)0)
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#define console_crash_on_input() ((void)0)
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static inline int vprintk(const char *format, va_list ap) { return 0; }
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static inline int printk(const char *format, ...) { return 0; }
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#endif
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/* Floppy */
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void floppy_init(void);
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void floppy_process(void);
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/* Test mode */
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void testmode_process(void);
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/* CRC-CCITT */
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uint16_t crc16_ccitt(const void *buf, size_t len, uint16_t crc);
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/* Build info. */
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extern const uint8_t fw_major, fw_minor;
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/* Bootloader mode flag. */
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extern volatile uint32_t _reset_flag;
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/* Text/data/BSS address ranges. */
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extern char _stext[], _etext[];
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extern char _sdat[], _edat[], _ldat[];
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extern char _sbss[], _ebss[];
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/* Stacks. */
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extern uint32_t _thread_stacktop[], _thread_stackbottom[];
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extern uint32_t _irq_stacktop[], _irq_stackbottom[];
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/* Default exception handler. */
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void EXC_unused(void);
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/* IRQ priorities, 0 (highest) to 15 (lowest). */
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#define RESET_IRQ_PRI 0
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#define INDEX_IRQ_PRI 2
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#define TIMER_IRQ_PRI 4
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/*
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* Local variables:
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* mode: C
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* c-file-style: "Linux"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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