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