/*
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* xcam_common.cpp - xcam common
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*
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* Copyright (c) 2014-2015 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#include <base/xcam_common.h>
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#include <base/xcam_log.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <stdarg.h>
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void * xcam_malloc(size_t size)
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{
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return malloc (size);
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}
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void * xcam_malloc0(size_t size)
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{
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void * ptr = malloc (size);
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memset (ptr, 0, size);
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return ptr;
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}
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void xcam_free(void *ptr)
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{
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if (ptr)
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free (ptr);
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}
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int xcam_device_ioctl (int fd, int cmd, void *arg)
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{
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int ret = 0;
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int tried_time = 0;
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if (fd < 0)
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return -1;
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while (1) {
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ret = ioctl (fd, cmd, arg);
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if (ret >= 0)
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break;
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if (errno != EINTR && errno != EAGAIN)
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break;
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if (++tried_time > 5)
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break;
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}
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if (ret >= 0) {
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XCAM_LOG_DEBUG ("ioctl return ok on fd(%d), cmd:0x%.8x", fd, cmd);
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} else {
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XCAM_LOG_DEBUG ("ioctl failed on fd(%d), cmd:0x%.8x, error:%s",
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fd, cmd, strerror(errno));
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}
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return ret;
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}
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const char *
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xcam_fourcc_to_string (uint32_t fourcc)
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{
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static char str[5];
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xcam_mem_clear (str);
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memcpy (str, &fourcc, 4);
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return str;
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}
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