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- /*
- * udebug - debug ring buffer library
- *
- * Copyright (C) 2023 Felix Fietkau <nbd@nbd.name>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
- #ifndef __UDEBUG_UTIL_H
- #define __UDEBUG_UTIL_H
- #include "blobmsg.h"
- #include "udebug.h"
- #include "udebug-proto.h"
- #define UDEBUG_TIMEOUT 1000
- __hidden int udebug_buf_open(struct udebug_buf *buf, int fd, uint32_t ring_size, uint32_t data_size);
- __hidden struct udebug_client_msg *
- udebug_send_and_wait(struct udebug *ctx, struct udebug_client_msg *msg, int *rfd);
- static inline int32_t u32_sub(uint32_t a, uint32_t b)
- {
- return a - b;
- }
- static inline int32_t u32_max(uint32_t a, uint32_t b)
- {
- return u32_sub(a, b) > 0 ? a : b;
- }
- static inline void u32_set(void *ptr, uint32_t val)
- {
- volatile uint32_t *v = ptr;
- *v = val;
- }
- static inline uint32_t u32_get(void *ptr)
- {
- volatile uint32_t *v = ptr;
- return *v;
- }
- #endif
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