160 lines
4.7 KiB
C++
160 lines
4.7 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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based on u8g_com_msp430_hw_spi.c
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Universal 8bit Graphics Library
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Copyright (c) 2012, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef __SAM3X8E__
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#include "../../inc/MarlinConfigPre.h"
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#if HAS_GRAPHICAL_LCD
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#include <U8glib.h>
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#include "../../Marlin.h"
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#define SPI_FULL_SPEED 0
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#define SPI_HALF_SPEED 1
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#define SPI_QUARTER_SPEED 2
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#define SPI_EIGHTH_SPEED 3
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#define SPI_SIXTEENTH_SPEED 4
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#define SPI_SPEED_5 5
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#define SPI_SPEED_6 6
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void spiBegin();
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void spiInit(uint8_t spiRate);
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void spiSend(uint8_t b);
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void spiSend(const uint8_t* buf, size_t n);
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#include "../shared/Marduino.h"
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#include "fastio_Due.h"
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void u8g_SetPIOutput_DUE_hw_spi(u8g_t *u8g, uint8_t pin_index) {
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PIO_Configure(g_APinDescription[u8g->pin_list[pin_index]].pPort, PIO_OUTPUT_1,
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g_APinDescription[u8g->pin_list[pin_index]].ulPin, g_APinDescription[u8g->pin_list[pin_index]].ulPinConfiguration); // OUTPUT
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}
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void u8g_SetPILevel_DUE_hw_spi(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
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volatile Pio* port = g_APinDescription[u8g->pin_list[pin_index]].pPort;
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uint32_t mask = g_APinDescription[u8g->pin_list[pin_index]].ulPin;
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if (level) port->PIO_SODR = mask;
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else port->PIO_CODR = mask;
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}
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uint8_t u8g_com_HAL_DUE_shared_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
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switch (msg) {
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case U8G_COM_MSG_STOP:
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break;
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case U8G_COM_MSG_INIT:
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u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_CS, 1);
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u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_A0, 1);
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u8g_SetPIOutput_DUE_hw_spi(u8g, U8G_PI_CS);
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u8g_SetPIOutput_DUE_hw_spi(u8g, U8G_PI_A0);
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u8g_Delay(5);
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spiBegin();
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#ifndef SPI_SPEED
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#define SPI_SPEED SPI_FULL_SPEED // use same SPI speed as SD card
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#endif
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spiInit(2);
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break;
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case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
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u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_A0, arg_val);
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break;
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case U8G_COM_MSG_CHIP_SELECT:
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u8g_SetPILevel_DUE_hw_spi(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
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break;
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case U8G_COM_MSG_RESET:
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break;
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case U8G_COM_MSG_WRITE_BYTE:
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spiSend((uint8_t)arg_val);
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break;
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case U8G_COM_MSG_WRITE_SEQ: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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spiSend(*ptr++);
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arg_val--;
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}
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}
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break;
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case U8G_COM_MSG_WRITE_SEQ_P: {
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uint8_t *ptr = (uint8_t*) arg_ptr;
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while (arg_val > 0) {
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spiSend(*ptr++);
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arg_val--;
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}
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}
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break;
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}
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return 1;
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}
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#endif // HAS_GRAPHICAL_LCD
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#endif //__SAM3X8E__
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