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annotate src/cs/system/bootloader/inc/serial.h @ 168:aa2956979fcb

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src/cs/system: MEMIF and init updates from Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 19 Jun 2019 04:05:38 +0000
parents b6a5e36de839
children
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1 /*******************************************************************************
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2 *
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3 * SERIAL.H
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4 *
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5 * This module contains functions to send or receive commands on the USART 8251.
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6 * Only polled mode is used.
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7 *
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8 * (C) Texas Instruments 1998
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9 *
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10 ******************************************************************************/
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11
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12 #ifndef __SERIAL_H__
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13 #define __SERIAL_H__
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14
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15 #include "main/sys_types.h"
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16
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17 /*
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18 * ser_receive_command and ser_receive_char have 2 modes:
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19 * SER_INFINITE : Waits until a command is received.
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20 * SER_IMMEDIATE: Returns imediately even if no character is received.
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21 */
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22
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23 enum {
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24 SER_INFINITE,
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25 SER_IMMEDIATE
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26 };
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27
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28 /*
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29 * Return values of ser_receive_data_for_flash.
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30 */
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31
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32 enum {
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33 SER_DATA_READY,
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34 SER_DATA_ERROR,
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35 SER_END_OF_FILE
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36 };
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37
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38 extern void ser_wait_no_activity (SYS_UWORD8 device_id);
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39 extern long ser_send_command (SYS_UWORD8 *command, SYS_UWORD8 device_id);
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40 extern SYS_UWORD8 ser_receive_command (SYS_UWORD8 *command, int mode);
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41 extern long ser_receive_data_for_flash (SYS_UWORD32 *address, SYS_UWORD16 *data, SYS_UWORD8 device_id);
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42 extern void ser_initialize_flash_data_detection (void);
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43 extern void ser_initialize_serial_link (void);
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44 extern void ser_wait_last_character_sent (SYS_UWORD8 device_id);
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45
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46 #endif /* __SERIAL_H__ */