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////////////////////////////////////////////////////////////////////////////////
///
/// @file EM100.c
///
/// @project
///
/// @brief EM100 Debug Routines
///
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
///
/// @copyright Copyright (c) 2019-2020, Evan Lojewski
/// @cond
///
/// All rights reserved.
///
/// Redistribution and use in source and binary forms, with or without
/// modification, are permitted provided that the following conditions are met:
/// 1. Redistributions of source code must retain the above copyright notice,
/// this list of conditions and the following disclaimer.
/// 2. Redistributions in binary form must reproduce the above copyright notice,
/// this list of conditions and the following disclaimer in the documentation
/// and/or other materials provided with the distribution.
/// 3. Neither the name of the copyright holder nor the
/// names of its contributors may be used to endorse or promote products
/// derived from this software without specific prior written permission.
///
////////////////////////////////////////////////////////////////////////////////
///
/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
/// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
/// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
/// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
/// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
/// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
/// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
/// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
/// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
/// POSSIBILITY OF SUCH DAMAGE.
/// @endcond
////////////////////////////////////////////////////////////////////////////////
#include "EM100.h"
#include <NVRam.h>
// #define ENABLE_CONSOLE
#undef ENABLE_CONSOLE
#ifdef ENABLE_CONSOLE
void NVRam_EM100_enableConsole(void);
void NVRam_EM100_disableConsole(void);
#endif /* ENABLE_CONSOLE */
#define EM100_CONSOLE_WRITE_COMMAND (0x11)
// #define EM100_CMD_GET_UFIFO_LEN (0xB1)
// #define EM100_CMD_GET_DFIFO_LEN (0xB2)
#define EM100_CMD_WRITE_UFIFO (0xC0)
// #define EM100_CMD_READ_DFIFO (0xD0)
// #define EM100_CMD_EXIT_CONSOLE (0xE0)
#define EM100_MSG_STRING (0x05)
#define EM100_MSG_SIG (0x47364440)
uint8_t gEM100Packet[65] = {
EM100_CONSOLE_WRITE_COMMAND, /* 0: SPI COmmand */
0x00, /* 1: Reserved */
EM100_CMD_WRITE_UFIFO, /* 2: EM100 Command */
0xFF & (EM100_MSG_SIG), /* 3: EM100_MSG_SIG */
0xFF & (EM100_MSG_SIG >> 8), /* 4: EM100_MSG_SIG */
0xFF & (EM100_MSG_SIG >> 16), /* 5: EM100_MSG_SIG */
0xFF & (EM100_MSG_SIG >> 24), /* 6: EM100_MSG_SIG */
EM100_MSG_STRING, /* 7: Message Type */
0, /* 8: Message Length */
}; //lint !e785
#define EM100_PACKET_MSG_LEN (8u)
#define EM100_PACKET_BUFFER_OFFSET (9u)
#define EM100_MAX_BUFFER_LEN (sizeof(gEM100Packet) - EM100_PACKET_BUFFER_OFFSET)
void NVRam_EM100_putchar(char c)
{
uint8_t used_buffer = gEM100Packet[EM100_PACKET_MSG_LEN] + 1;
gEM100Packet[used_buffer + EM100_PACKET_BUFFER_OFFSET - 1] = (uint8_t)c;
gEM100Packet[EM100_PACKET_MSG_LEN] = used_buffer;
// Flush if the buffer is full or if we reached the end of a line
if (('\n' == c) || (used_buffer >= EM100_MAX_BUFFER_LEN))
{
#ifdef ENABLE_CONSOLE
NVRam_EM100_enableConsole();
#endif
if (NVRam_sendBytes(gEM100Packet, EM100_PACKET_BUFFER_OFFSET + used_buffer))
{
// Mark buffer as empty
gEM100Packet[EM100_PACKET_MSG_LEN] = 0;
}
else
{
if (used_buffer >= EM100_MAX_BUFFER_LEN)
{
// Don't output any more chars
gEM100Packet[EM100_PACKET_MSG_LEN] = used_buffer - 1;
}
}
#ifdef ENABLE_CONSOLE
NVRam_EM100_disableConsole();
#endif
}
}
#ifdef ENABLE_CONSOLE
void NVRam_EM100_enableConsole(void)
{
uint8_t packet_AA[] = { EM100_CONSOLE_WRITE_COMMAND, 0x00, 0xAA, 0xAA, 0x00 };
uint8_t packet_55[] = { EM100_CONSOLE_WRITE_COMMAND, 0x00, 0x55, 0x55, 0x00 };
NVRam_sendBytes(packet_AA, sizeof(packet_AA));
NVRam_sendBytes(packet_55, sizeof(packet_AA));
NVRam_sendBytes(packet_AA, sizeof(packet_AA));
}
void NVRam_EM100_disableConsole(void)
{
uint8_t packet_exit_console[] = {
EM100_CONSOLE_WRITE_COMMAND,
0x00,
EM100_CMD_EXIT_CONSOLE,
0x00,
};
NVRam_sendBytes(packet_exit_console, sizeof(packet_exit_console));
}
#endif /* ENABLE_CONSOLE */
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