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Shorter paths to HAL, ExtUI (#17156)

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This commit is contained in:
Scott Lahteine
2020-03-13 16:29:29 -05:00
committed by GitHub
parent ad980a72f7
commit 6bead0c1b0
600 changed files with 228 additions and 227 deletions
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123
Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
// adapted from I2C/master/master.c example
// https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
#ifdef TARGET_LPC1768
#include "../include/i2c_util.h"
#include "../../../core/millis_t.h"
extern int millis();
#ifdef __cplusplus
extern "C" {
#endif
//////////////////////////////////////////////////////////////////////////////////////
// These two routines are exact copies of the lpc17xx_i2c.c routines. Couldn't link to
// to the lpc17xx_i2c.c routines so had to copy them into this file & rename them.
static uint32_t _I2C_Start(LPC_I2C_TypeDef *I2Cx) {
// Reset STA, STO, SI
I2Cx->I2CONCLR = I2C_I2CONCLR_SIC|I2C_I2CONCLR_STOC|I2C_I2CONCLR_STAC;
// Enter to Master Transmitter mode
I2Cx->I2CONSET = I2C_I2CONSET_STA;
// Wait for complete
while (!(I2Cx->I2CONSET & I2C_I2CONSET_SI));
I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
return (I2Cx->I2STAT & I2C_STAT_CODE_BITMASK);
}
static void _I2C_Stop (LPC_I2C_TypeDef *I2Cx) {
/* Make sure start bit is not active */
if (I2Cx->I2CONSET & I2C_I2CONSET_STA)
I2Cx->I2CONCLR = I2C_I2CONCLR_STAC;
I2Cx->I2CONSET = I2C_I2CONSET_STO|I2C_I2CONSET_AA;
I2Cx->I2CONCLR = I2C_I2CONCLR_SIC;
}
//////////////////////////////////////////////////////////////////////////////////////
#define I2CDEV_S_ADDR 0x78 // from SSD1306 //actual address is 0x3C - shift left 1 with LSB set to 0 to indicate write
#define BUFFER_SIZE 0x1 // only do single byte transfers with LCDs
I2C_M_SETUP_Type transferMCfg;
#define I2C_status (LPC_I2C1->I2STAT & I2C_STAT_CODE_BITMASK)
// Send slave address and write bit
uint8_t u8g_i2c_start(const uint8_t sla) {
// Sometimes TX data ACK or NAK status is returned. That mean the start state didn't
// happen which means only the value of the slave address was send. Keep looping until
// the slave address and write bit are actually sent.
do{
_I2C_Stop(I2CDEV_M); // output stop state on I2C bus
_I2C_Start(I2CDEV_M); // output start state on I2C bus
while ((I2C_status != I2C_I2STAT_M_TX_START)
&& (I2C_status != I2C_I2STAT_M_TX_RESTART)
&& (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
&& (I2C_status != I2C_I2STAT_M_TX_DAT_NACK)); //wait for start to be asserted
LPC_I2C1->I2CONCLR = I2C_I2CONCLR_STAC; // clear start state before tansmitting slave address
LPC_I2C1->I2DAT = I2CDEV_S_ADDR & I2C_I2DAT_BITMASK; // transmit slave address & write bit
LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
while ((I2C_status != I2C_I2STAT_M_TX_SLAW_ACK)
&& (I2C_status != I2C_I2STAT_M_TX_SLAW_NACK)
&& (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
&& (I2C_status != I2C_I2STAT_M_TX_DAT_NACK)); //wait for slaw to finish
}while ( (I2C_status == I2C_I2STAT_M_TX_DAT_ACK) || (I2C_status == I2C_I2STAT_M_TX_DAT_NACK));
return 1;
}
void u8g_i2c_init(const uint8_t clock_option) {
configure_i2c(clock_option);
u8g_i2c_start(0); // Send slave address and write bit
}
uint8_t u8g_i2c_send_byte(uint8_t data) {
#define I2C_TIMEOUT 3
LPC_I2C1->I2DAT = data & I2C_I2DAT_BITMASK; // transmit data
LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
const millis_t timeout = millis() + I2C_TIMEOUT;
while ((I2C_status != I2C_I2STAT_M_TX_DAT_ACK) && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK) && PENDING(millis(), timeout)); // wait for xmit to finish
// had hangs with SH1106 so added time out - have seen temporary screen corruption when this happens
return 1;
}
void u8g_i2c_stop() {
}
#ifdef __cplusplus
}
#endif
#endif // TARGET_LPC1768

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Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
void u8g_i2c_init(const uint8_t clock_options);
//uint8_t u8g_i2c_wait(uint8_t mask, uint8_t pos);
uint8_t u8g_i2c_start(uint8_t sla);
uint8_t u8g_i2c_send_byte(uint8_t data);
void u8g_i2c_stop();

49
Marlin/src/HAL/LPC1768/u8g/LCD_defines.h Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* LPC1768 LCD-specific defines
*/
// The following are optional depending on the platform.
// definitions of HAL specific com and device drivers.
uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
// connect U8g com generic com names to the desired driver
#define U8G_COM_HW_SPI u8g_com_HAL_LPC1768_hw_spi_fn // use LPC1768 specific hardware SPI routine
#define U8G_COM_SW_SPI u8g_com_HAL_LPC1768_sw_spi_fn // use LPC1768 specific software SPI routine
#define U8G_COM_ST7920_HW_SPI u8g_com_HAL_LPC1768_ST7920_hw_spi_fn
#define U8G_COM_ST7920_SW_SPI u8g_com_HAL_LPC1768_ST7920_sw_spi_fn
#define U8G_COM_SSD_I2C u8g_com_HAL_LPC1768_ssd_hw_i2c_fn
// let these default for now
#define U8G_COM_PARALLEL u8g_com_null_fn
#define U8G_COM_T6963 u8g_com_null_fn
#define U8G_COM_FAST_PARALLEL u8g_com_null_fn
#define U8G_COM_UC_I2C u8g_com_null_fn

43
Marlin/src/HAL/LPC1768/u8g/LCD_delay.h Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* LCD delay routines - used by all the drivers.
*
* These are based on the LPC1768 routines.
*
* Couldn't just call exact copies because the overhead
* results in a one microsecond delay taking about 4µS.
*/
#ifdef __cplusplus
extern "C" {
#endif
void U8g_delay(int msec);
void u8g_MicroDelay();
void u8g_10MicroDelay();
#ifdef __cplusplus
}
#endif

110
Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Low level pin manipulation routines - used by all the drivers.
*
* These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
*
* Couldn't just call exact copies because the overhead killed the LCD update speed
* With an intermediate level the softspi was running in the 10-20kHz range which
* resulted in using about about 25% of the CPU's time.
*/
#ifdef TARGET_LPC1768
#include <LPC17xx.h>
#include <lpc17xx_pinsel.h>
#include "../../../core/macros.h"
//#include <pinmapping.h>
#define LPC_PORT_OFFSET (0x0020)
#define LPC_PIN(pin) (1UL << pin)
#define LPC_GPIO(port) ((volatile LPC_GPIO_TypeDef *)(LPC_GPIO0_BASE + LPC_PORT_OFFSET * port))
#define INPUT 0
#define OUTPUT 1
#define INPUT_PULLUP 2
uint8_t LPC1768_PIN_PORT(const uint8_t pin);
uint8_t LPC1768_PIN_PIN(const uint8_t pin);
#ifdef __cplusplus
extern "C" {
#endif
// I/O functions
// As defined by Arduino INPUT(0x0), OUTPUT(0x1), INPUT_PULLUP(0x2)
void pinMode_LCD(uint8_t pin, uint8_t mode) {
#define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
#define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
PINSEL_CFG_Type config = { LPC1768_PIN_PORT(pin),
LPC1768_PIN_PIN(pin),
PINSEL_FUNC_0,
PINSEL_PINMODE_TRISTATE,
PINSEL_PINMODE_NORMAL };
switch (mode) {
case INPUT:
LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
PINSEL_ConfigPin(&config);
break;
case OUTPUT:
LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR |= LPC_PIN(LPC1768_PIN_PIN(pin));
PINSEL_ConfigPin(&config);
break;
case INPUT_PULLUP:
LPC_GPIO(LPC1768_PIN_PORT(pin))->FIODIR &= ~LPC_PIN(LPC1768_PIN_PIN(pin));
config.Pinmode = PINSEL_PINMODE_PULLUP;
PINSEL_ConfigPin(&config);
break;
default: break;
}
}
void u8g_SetPinOutput(uint8_t internal_pin_number) {
pinMode_LCD(internal_pin_number, 1); // OUTPUT
}
void u8g_SetPinInput(uint8_t internal_pin_number) {
pinMode_LCD(internal_pin_number, 0); // INPUT
}
void u8g_SetPinLevel(uint8_t pin, uint8_t pin_status) {
#define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
#define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
if (pin_status)
LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOSET = LPC_PIN(LPC1768_PIN_PIN(pin));
else
LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOCLR = LPC_PIN(LPC1768_PIN_PIN(pin));
}
uint8_t u8g_GetPinLevel(uint8_t pin) {
#define LPC1768_PIN_PORT(pin) ((uint8_t)((pin >> 5) & 0b111))
#define LPC1768_PIN_PIN(pin) ((uint8_t)(pin & 0b11111))
return (uint32_t)LPC_GPIO(LPC1768_PIN_PORT(pin))->FIOPIN & LPC_PIN(LPC1768_PIN_PIN(pin)) ? 1 : 0;
}
#ifdef __cplusplus
}
#endif
#endif // TARGET_LPC1768

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Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* Low level pin manipulation routines - used by all the drivers.
*
* These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
*
* Couldn't just call exact copies because the overhead killed the LCD update speed
* With an intermediate level the softspi was running in the 10-20kHz range which
* resulted in using about about 25% of the CPU's time.
*/
void u8g_SetPinOutput(uint8_t internal_pin_number);
void u8g_SetPinInput(uint8_t internal_pin_number);
void u8g_SetPinLevel(uint8_t pin, uint8_t pin_status);
uint8_t u8g_GetPinLevel(uint8_t pin);

129
Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Based on u8g_com_msp430_hw_spi.c
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2011, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * 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.
*
* 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.
*/
#ifdef TARGET_LPC1768
#include "../../../inc/MarlinConfigPre.h"
#if HAS_GRAPHICAL_LCD
#include <U8glib.h>
#include "../../shared/HAL_SPI.h"
void spiBegin();
void spiInit(uint8_t spiRate);
void spiSend(uint8_t b);
void spiSend(const uint8_t* buf, size_t n);
uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
switch (msg) {
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
u8g_SetPILevel(u8g, U8G_PI_CS, 1);
u8g_SetPILevel(u8g, U8G_PI_A0, 1);
u8g_SetPILevel(u8g, U8G_PI_RESET, 1);
u8g_SetPIOutput(u8g, U8G_PI_CS);
u8g_SetPIOutput(u8g, U8G_PI_A0);
u8g_SetPIOutput(u8g, U8G_PI_RESET);
u8g_Delay(5);
spiBegin();
#ifndef SPI_SPEED
#define SPI_SPEED SPI_FULL_SPEED // use same SPI speed as SD card
#endif
spiInit(SPI_SPEED);
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
break;
case U8G_COM_MSG_CHIP_SELECT:
u8g_SetPILevel(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
break;
case U8G_COM_MSG_RESET:
u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
break;
case U8G_COM_MSG_WRITE_BYTE:
spiSend((uint8_t)arg_val);
break;
case U8G_COM_MSG_WRITE_SEQ: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
spiSend(*ptr++);
arg_val--;
}
}
break;
case U8G_COM_MSG_WRITE_SEQ_P: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
spiSend(*ptr++);
arg_val--;
}
}
break;
}
return 1;
}
#endif // HAS_GRAPHICAL_LCD
#endif // TARGET_LPC1768

198
Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Based on u8g_com_arduino_ssd_i2c.c
*
* COM interface for Arduino (AND ATmega) and the SSDxxxx chip (SOLOMON) variant
* I2C protocol
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2011, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * 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.
*
* 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.
*/
/**
* Special pin usage:
* U8G_PI_I2C_OPTION additional options
* U8G_PI_A0_STATE used to store the last value of the command/data register selection
* U8G_PI_SET_A0 1: Signal request to update I2C device with new A0_STATE, 0: Do nothing, A0_STATE matches I2C device
* U8G_PI_SCL clock line (NOT USED)
* U8G_PI_SDA data line (NOT USED)
*
* U8G_PI_RESET reset line (currently disabled, see below)
*
* Protocol:
* SLA, Cmd/Data Selection, Arguments
* The command/data register is selected by a special instruction byte, which is sent after SLA
*
* The continue bit is always 0 so that a (re)start is equired for the change from cmd to/data mode
*/
#ifdef TARGET_LPC1768
#include "../../../inc/MarlinConfigPre.h"
#if HAS_GRAPHICAL_LCD
#include <U8glib.h>
#define I2C_SLA (0x3C*2)
//#define I2C_CMD_MODE 0x080
#define I2C_CMD_MODE 0x000
#define I2C_DATA_MODE 0x040
uint8_t u8g_com_ssd_I2C_start_sequence(u8g_t *u8g) {
/* are we requested to set the a0 state? */
if (u8g->pin_list[U8G_PI_SET_A0] == 0) return 1;
/* setup bus, might be a repeated start */
if (u8g_i2c_start(I2C_SLA) == 0) return 0;
if (u8g->pin_list[U8G_PI_A0_STATE] == 0) {
if (u8g_i2c_send_byte(I2C_CMD_MODE) == 0) return 0;
}
else if (u8g_i2c_send_byte(I2C_DATA_MODE) == 0)
return 0;
u8g->pin_list[U8G_PI_SET_A0] = 0;
return 1;
}
uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
switch (msg) {
case U8G_COM_MSG_INIT:
//u8g_com_arduino_digital_write(u8g, U8G_PI_SCL, HIGH);
//u8g_com_arduino_digital_write(u8g, U8G_PI_SDA, HIGH);
//u8g->pin_list[U8G_PI_A0_STATE] = 0; /* initial RS state: unknown mode */
u8g_i2c_init(u8g->pin_list[U8G_PI_I2C_OPTION]);
u8g_com_ssd_I2C_start_sequence(u8g);
break;
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_RESET:
/* Currently disabled, but it could be enable. Previous restrictions have been removed */
/* u8g_com_arduino_digital_write(u8g, U8G_PI_RESET, arg_val); */
break;
case U8G_COM_MSG_CHIP_SELECT:
u8g->pin_list[U8G_PI_A0_STATE] = 0;
u8g->pin_list[U8G_PI_SET_A0] = 1; /* force a0 to set again, also forces start condition */
if (arg_val == 0 ) {
/* disable chip, send stop condition */
u8g_i2c_stop();
}
else {
/* enable, do nothing: any byte writing will trigger the i2c start */
}
break;
case U8G_COM_MSG_WRITE_BYTE:
//u8g->pin_list[U8G_PI_SET_A0] = 1;
if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
u8g_i2c_stop();
return 0;
}
if (u8g_i2c_send_byte(arg_val) == 0) {
u8g_i2c_stop();
return 0;
}
// u8g_i2c_stop();
break;
case U8G_COM_MSG_WRITE_SEQ: {
//u8g->pin_list[U8G_PI_SET_A0] = 1;
if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
u8g_i2c_stop();
return 0;
}
uint8_t *ptr = (uint8_t *)arg_ptr;
while (arg_val > 0) {
if (u8g_i2c_send_byte(*ptr++) == 0) {
u8g_i2c_stop();
return 0;
}
arg_val--;
}
}
// u8g_i2c_stop();
break;
case U8G_COM_MSG_WRITE_SEQ_P: {
//u8g->pin_list[U8G_PI_SET_A0] = 1;
if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
u8g_i2c_stop();
return 0;
}
uint8_t *ptr = (uint8_t *)arg_ptr;
while (arg_val > 0) {
if (u8g_i2c_send_byte(u8g_pgm_read(ptr)) == 0)
return 0;
ptr++;
arg_val--;
}
}
// u8g_i2c_stop();
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
u8g->pin_list[U8G_PI_SET_A0] = 1; /* force a0 to set again */
break;
} // switch
return 1;
}
#endif // HAS_GRAPHICAL_LCD
#endif // TARGET_LPC1768

138
Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Based on u8g_com_LPC1768_st7920_hw_spi.c
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2011, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * 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.
*
* 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.
*/
#ifdef TARGET_LPC1768
#include "../../../inc/MarlinConfigPre.h"
#if HAS_GRAPHICAL_LCD
#include <U8glib.h>
#include "../../shared/HAL_SPI.h"
#include "../../shared/Delay.h"
void spiBegin();
void spiInit(uint8_t spiRate);
void spiSend(uint8_t b);
void spiSend(const uint8_t* buf, size_t n);
static uint8_t rs_last_state = 255;
static void u8g_com_LPC1768_st7920_write_byte_hw_spi(uint8_t rs, uint8_t val) {
if (rs != rs_last_state) { // Time to send a command/data byte
rs_last_state = rs;
spiSend(rs ? 0x0FA : 0x0F8); // Send data or command
DELAY_US(40); // Give the controller some time: 20 is bad, 30 is OK, 40 is safe
}
spiSend(val & 0xF0);
spiSend(val << 4);
}
uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
switch (msg) {
case U8G_COM_MSG_INIT:
u8g_SetPILevel(u8g, U8G_PI_CS, 0);
u8g_SetPIOutput(u8g, U8G_PI_CS);
u8g_Delay(5);
spiBegin();
spiInit(SPI_EIGHTH_SPEED); // ST7920 max speed is about 1.1 MHz
u8g->pin_list[U8G_PI_A0_STATE] = 0; // initial RS state: command mode
break;
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_RESET:
u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
break;
case U8G_COM_MSG_ADDRESS: // Define cmd (arg_val = 0) or data mode (arg_val = 1)
u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
break;
case U8G_COM_MSG_CHIP_SELECT:
u8g_SetPILevel(u8g, U8G_PI_CS, arg_val); // Note: the ST7920 has an active high chip-select
break;
case U8G_COM_MSG_WRITE_BYTE:
u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
break;
case U8G_COM_MSG_WRITE_SEQ: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
arg_val--;
}
}
break;
case U8G_COM_MSG_WRITE_SEQ_P: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
arg_val--;
}
}
break;
}
return 1;
}
#endif // HAS_GRAPHICAL_LCD
#endif // TARGET_LPC1768

145
Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Based on u8g_com_st7920_hw_spi.c
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2011, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * 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.
*
* 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.
*/
#ifdef TARGET_LPC1768
#include "../../../inc/MarlinConfigPre.h"
#if ENABLED(U8GLIB_ST7920)
#include <U8glib.h>
#include <SoftwareSPI.h>
#include "../../shared/Delay.h"
#undef SPI_SPEED
#define SPI_SPEED 3 // About 1 MHz
static pin_t SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL;
static uint8_t SPI_speed = 0;
static void u8g_com_LPC1768_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
static uint8_t rs_last_state = 255;
if (rs != rs_last_state) {
// Transfer Data (FA) or Command (F8)
swSpiTransfer(rs ? 0x0FA : 0x0F8, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
rs_last_state = rs;
DELAY_US(40); // Give the controller time to process the data: 20 is bad, 30 is OK, 40 is safe
}
swSpiTransfer(val & 0x0F0, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
swSpiTransfer(val << 4, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
}
uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
switch (msg) {
case U8G_COM_MSG_INIT:
SCK_pin_ST7920_HAL = u8g->pin_list[U8G_PI_SCK];
MOSI_pin_ST7920_HAL_HAL = u8g->pin_list[U8G_PI_MOSI];
u8g_SetPIOutput(u8g, U8G_PI_CS);
u8g_SetPIOutput(u8g, U8G_PI_SCK);
u8g_SetPIOutput(u8g, U8G_PI_MOSI);
u8g_Delay(5);
SPI_speed = swSpiInit(SPI_SPEED, SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL);
u8g_SetPILevel(u8g, U8G_PI_CS, 0);
u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
u8g->pin_list[U8G_PI_A0_STATE] = 0; /* initial RS state: command mode */
break;
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_RESET:
if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
break;
case U8G_COM_MSG_CHIP_SELECT:
if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS]) u8g_SetPILevel(u8g, U8G_PI_CS, arg_val); //note: the st7920 has an active high chip select
break;
case U8G_COM_MSG_WRITE_BYTE:
u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
break;
case U8G_COM_MSG_WRITE_SEQ: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
arg_val--;
}
}
break;
case U8G_COM_MSG_WRITE_SEQ_P: {
uint8_t *ptr = (uint8_t*) arg_ptr;
while (arg_val > 0) {
u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
arg_val--;
}
}
break;
}
return 1;
}
#endif // U8GLIB_ST7920
#endif // TARGET_LPC1768

207
Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Based on u8g_com_std_sw_spi.c
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2015, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * 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.
*
* 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.
*/
#ifdef TARGET_LPC1768
#include "../../../inc/MarlinConfigPre.h"
#if HAS_GRAPHICAL_LCD && DISABLED(U8GLIB_ST7920)
#include <SoftwareSPI.h>
#undef SPI_SPEED
#define SPI_SPEED 2 // About 2 MHz
#include <Arduino.h>
#include <algorithm>
#include <LPC17xx.h>
#include <gpio.h>
#include <U8glib.h>
uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
for (uint8_t i = 0; i < 8; i++) {
if (spi_speed == 0) {
LPC176x::gpio_set(mosi_pin, !!(b & 0x80));
LPC176x::gpio_set(sck_pin, HIGH);
b <<= 1;
if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
LPC176x::gpio_set(sck_pin, LOW);
}
else {
const uint8_t state = (b & 0x80) ? HIGH : LOW;
for (uint8_t j = 0; j < spi_speed; j++)
LPC176x::gpio_set(mosi_pin, state);
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
LPC176x::gpio_set(sck_pin, HIGH);
b <<= 1;
if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
for (uint8_t j = 0; j < spi_speed; j++)
LPC176x::gpio_set(sck_pin, LOW);
}
}
return b;
}
uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
for (uint8_t i = 0; i < 8; i++) {
const uint8_t state = (b & 0x80) ? HIGH : LOW;
if (spi_speed == 0) {
LPC176x::gpio_set(sck_pin, LOW);
LPC176x::gpio_set(mosi_pin, state);
LPC176x::gpio_set(mosi_pin, state); // need some setup time
LPC176x::gpio_set(sck_pin, HIGH);
}
else {
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
LPC176x::gpio_set(sck_pin, LOW);
for (uint8_t j = 0; j < spi_speed; j++)
LPC176x::gpio_set(mosi_pin, state);
for (uint8_t j = 0; j < spi_speed; j++)
LPC176x::gpio_set(sck_pin, HIGH);
}
b <<= 1;
if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
}
return b;
}
static uint8_t SPI_speed = 0;
static void u8g_sw_spi_HAL_LPC1768_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
#if EITHER(FYSETC_MINI_12864, MKS_MINI_12864)
swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
#else
swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
#endif
}
uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
switch (msg) {
case U8G_COM_MSG_INIT:
u8g_SetPIOutput(u8g, U8G_PI_SCK);
u8g_SetPIOutput(u8g, U8G_PI_MOSI);
u8g_SetPIOutput(u8g, U8G_PI_CS);
u8g_SetPIOutput(u8g, U8G_PI_A0);
if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPIOutput(u8g, U8G_PI_RESET);
SPI_speed = swSpiInit(SPI_SPEED, u8g->pin_list[U8G_PI_SCK], u8g->pin_list[U8G_PI_MOSI]);
u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
break;
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_RESET:
if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
break;
case U8G_COM_MSG_CHIP_SELECT:
#if EITHER(FYSETC_MINI_12864, MKS_MINI_12864) // LCD SPI is running mode 3 while SD card is running mode 0
if (arg_val) { // SCK idle state needs to be set to the proper idle state before
// the next chip select goes active
u8g_SetPILevel(u8g, U8G_PI_SCK, 1); // Set SCK to mode 3 idle state before CS goes active
u8g_SetPILevel(u8g, U8G_PI_CS, LOW);
}
else {
u8g_SetPILevel(u8g, U8G_PI_CS, HIGH);
u8g_SetPILevel(u8g, U8G_PI_SCK, 0); // Set SCK to mode 0 idle state after CS goes inactive
}
#else
u8g_SetPILevel(u8g, U8G_PI_CS, !arg_val);
#endif
break;
case U8G_COM_MSG_WRITE_BYTE:
u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], arg_val);
break;
case U8G_COM_MSG_WRITE_SEQ: {
uint8_t *ptr = (uint8_t *)arg_ptr;
while (arg_val > 0) {
u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], *ptr++);
arg_val--;
}
}
break;
case U8G_COM_MSG_WRITE_SEQ_P: {
uint8_t *ptr = (uint8_t *)arg_ptr;
while (arg_val > 0) {
u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], u8g_pgm_read(ptr));
ptr++;
arg_val--;
}
}
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
break;
}
return 1;
}
#endif // HAS_GRAPHICAL_LCD && !U8GLIB_ST7920
#endif // TARGET_LPC1768