diff options
Diffstat (limited to 'Marlin/src/HAL/LPC1768/u8g')
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp | 123 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h | 28 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_defines.h | 49 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_delay.h | 43 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c | 110 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h | 37 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp | 129 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp | 198 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp | 138 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp | 147 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp | 209 |
11 files changed, 1211 insertions, 0 deletions
diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp new file mode 100644 index 0000000..a48a820 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.cpp @@ -0,0 +1,123 @@ +/** + * 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 <https://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 diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h new file mode 100644 index 0000000..2d976c9 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_I2C_routines.h @@ -0,0 +1,28 @@ +/** + * 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 <https://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(); diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_defines.h b/Marlin/src/HAL/LPC1768/u8g/LCD_defines.h new file mode 100644 index 0000000..d226003 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_defines.h @@ -0,0 +1,49 @@ +/** + * 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 <https://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 diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_delay.h b/Marlin/src/HAL/LPC1768/u8g/LCD_delay.h new file mode 100644 index 0000000..0b9e2b4 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_delay.h @@ -0,0 +1,43 @@ +/** + * 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 <https://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 diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c new file mode 100644 index 0000000..466fc80 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.c @@ -0,0 +1,110 @@ +/** + * 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 <https://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 diff --git a/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h new file mode 100644 index 0000000..d60d93d --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/LCD_pin_routines.h @@ -0,0 +1,37 @@ +/** + * 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 <https://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); diff --git a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp new file mode 100644 index 0000000..b1eea13 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp @@ -0,0 +1,129 @@ +/** + * 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 <https://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_MARLINUI_U8GLIB + +#include <U8glib.h> +#include "../../shared/HAL_SPI.h" + +#ifndef LCD_SPI_SPEED + #ifdef SD_SPI_SPEED + #define LCD_SPI_SPEED SD_SPI_SPEED // Assume SPI speed shared with SD + #else + #define LCD_SPI_SPEED SPI_FULL_SPEED // Use full speed if SD speed is not supplied + #endif +#endif + +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(); + spiInit(LCD_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_MARLINUI_U8GLIB + +#endif // TARGET_LPC1768 diff --git a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp new file mode 100644 index 0000000..6f7efba --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp @@ -0,0 +1,198 @@ +/** + * 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 <https://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_MARLINUI_U8GLIB + +#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_MARLINUI_U8GLIB + +#endif // TARGET_LPC1768 diff --git a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp new file mode 100644 index 0000000..592e27f --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp @@ -0,0 +1,138 @@ +/** + * 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 <https://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_MARLINUI_U8GLIB + +#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_MARLINUI_U8GLIB + +#endif // TARGET_LPC1768 diff --git a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp new file mode 100644 index 0000000..61211d9 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp @@ -0,0 +1,147 @@ +/** + * 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 <https://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" +#include "../../shared/HAL_SPI.h" + +#ifndef LCD_SPI_SPEED + #define LCD_SPI_SPEED SPI_EIGHTH_SPEED // About 1 MHz +#endif + +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(LCD_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 diff --git a/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp new file mode 100644 index 0000000..7f38ec5 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp @@ -0,0 +1,209 @@ +/** + * 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 <https://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_MARLINUI_U8GLIB && DISABLED(U8GLIB_ST7920) + +#include <SoftwareSPI.h> +#include "../../shared/HAL_SPI.h" + +#ifndef LCD_SPI_SPEED + #define LCD_SPI_SPEED SPI_QUARTER_SPEED // About 2 MHz +#endif + +#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 ) { + + LOOP_L_N(i, 8) { + 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; + LOOP_L_N(j, spi_speed) + LPC176x::gpio_set(mosi_pin, state); + + LOOP_L_N(j, spi_speed + (miso_pin >= 0 ? 0 : 1)) + LPC176x::gpio_set(sck_pin, HIGH); + + b <<= 1; + if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1; + + LOOP_L_N(j, spi_speed) + 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 ) { + + LOOP_L_N(i, 8) { + 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 { + LOOP_L_N(j, spi_speed + (miso_pin >= 0 ? 0 : 1)) + LPC176x::gpio_set(sck_pin, LOW); + + LOOP_L_N(j, spi_speed) + LPC176x::gpio_set(mosi_pin, state); + + LOOP_L_N(j, spi_speed) + 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(LCD_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_MARLINUI_U8GLIB && !U8GLIB_ST7920 +#endif // TARGET_LPC1768 |