takashi kadono / Mbed OS Nucleo_446

Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466

Dependencies:   ssd1331

mbed-os/features/netsocket/EMACMemoryManager.cpp@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* Copyright (c) 2018 ARM Limited
kadonotakashi 0:8fdf9a60065b 2 *
kadonotakashi 0:8fdf9a60065b 3 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 4 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 5 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 6 *
kadonotakashi 0:8fdf9a60065b 7 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 8 *
kadonotakashi 0:8fdf9a60065b 9 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 10 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 12 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 13 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 14 */
kadonotakashi 0:8fdf9a60065b 15
kadonotakashi 0:8fdf9a60065b 16 #include "EMACMemoryManager.h"
kadonotakashi 0:8fdf9a60065b 17
kadonotakashi 0:8fdf9a60065b 18 void EMACMemoryManager::copy_to_buf(emac_mem_buf_t *to_buf, const void *ptr, uint32_t len)
kadonotakashi 0:8fdf9a60065b 19 {
kadonotakashi 0:8fdf9a60065b 20 while (to_buf && len) {
kadonotakashi 0:8fdf9a60065b 21 void *copy_to_ptr = get_ptr(to_buf);
kadonotakashi 0:8fdf9a60065b 22 uint32_t copy_to_len = get_len(to_buf);
kadonotakashi 0:8fdf9a60065b 23
kadonotakashi 0:8fdf9a60065b 24 if (copy_to_len > len) {
kadonotakashi 0:8fdf9a60065b 25 copy_to_len = len;
kadonotakashi 0:8fdf9a60065b 26 len = 0;
kadonotakashi 0:8fdf9a60065b 27 } else {
kadonotakashi 0:8fdf9a60065b 28 len -= copy_to_len;
kadonotakashi 0:8fdf9a60065b 29 }
kadonotakashi 0:8fdf9a60065b 30
kadonotakashi 0:8fdf9a60065b 31 memcpy(copy_to_ptr, ptr, copy_to_len);
kadonotakashi 0:8fdf9a60065b 32 ptr = static_cast<const uint8_t *>(ptr) + copy_to_len;
kadonotakashi 0:8fdf9a60065b 33
kadonotakashi 0:8fdf9a60065b 34 to_buf = get_next(to_buf);
kadonotakashi 0:8fdf9a60065b 35 }
kadonotakashi 0:8fdf9a60065b 36 }
kadonotakashi 0:8fdf9a60065b 37
kadonotakashi 0:8fdf9a60065b 38 uint32_t EMACMemoryManager::copy_from_buf(void *ptr, uint32_t len, const emac_mem_buf_t *from_buf) const
kadonotakashi 0:8fdf9a60065b 39 {
kadonotakashi 0:8fdf9a60065b 40 uint32_t copied_len = 0;
kadonotakashi 0:8fdf9a60065b 41
kadonotakashi 0:8fdf9a60065b 42 while (from_buf && len) {
kadonotakashi 0:8fdf9a60065b 43 void *copy_from_ptr = get_ptr(from_buf);
kadonotakashi 0:8fdf9a60065b 44 uint32_t copy_from_len = get_len(from_buf);
kadonotakashi 0:8fdf9a60065b 45
kadonotakashi 0:8fdf9a60065b 46 if (copy_from_len > len) {
kadonotakashi 0:8fdf9a60065b 47 copy_from_len = len;
kadonotakashi 0:8fdf9a60065b 48 len = 0;
kadonotakashi 0:8fdf9a60065b 49 } else {
kadonotakashi 0:8fdf9a60065b 50 len -= copy_from_len;
kadonotakashi 0:8fdf9a60065b 51 }
kadonotakashi 0:8fdf9a60065b 52
kadonotakashi 0:8fdf9a60065b 53 memcpy(ptr, copy_from_ptr, copy_from_len);
kadonotakashi 0:8fdf9a60065b 54 ptr = static_cast<uint8_t *>(ptr) + copy_from_len;
kadonotakashi 0:8fdf9a60065b 55 copied_len += copy_from_len;
kadonotakashi 0:8fdf9a60065b 56
kadonotakashi 0:8fdf9a60065b 57 from_buf = get_next(from_buf);
kadonotakashi 0:8fdf9a60065b 58 }
kadonotakashi 0:8fdf9a60065b 59
kadonotakashi 0:8fdf9a60065b 60 return copied_len;
kadonotakashi 0:8fdf9a60065b 61 }
kadonotakashi 0:8fdf9a60065b 62