diff options
Diffstat (limited to 'Marlin/src/HAL/LPC1768/tft')
| -rw-r--r-- | Marlin/src/HAL/LPC1768/tft/tft_spi.cpp | 153 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/tft/tft_spi.h | 77 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/tft/xpt2046.cpp | 131 | ||||
| -rw-r--r-- | Marlin/src/HAL/LPC1768/tft/xpt2046.h | 83 |
4 files changed, 444 insertions, 0 deletions
diff --git a/Marlin/src/HAL/LPC1768/tft/tft_spi.cpp b/Marlin/src/HAL/LPC1768/tft/tft_spi.cpp new file mode 100644 index 0000000..a2cb66a --- /dev/null +++ b/Marlin/src/HAL/LPC1768/tft/tft_spi.cpp @@ -0,0 +1,153 @@ +/** + * 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/>. + * + */ + +#include "../../../inc/MarlinConfig.h" + +#if HAS_SPI_TFT + +#include "tft_spi.h" + +//TFT_SPI tft; + +SPIClass TFT_SPI::SPIx(1); + +#define TFT_CS_H WRITE(TFT_CS_PIN, HIGH) +#define TFT_CS_L WRITE(TFT_CS_PIN, LOW) + +#define TFT_DC_H WRITE(TFT_DC_PIN, HIGH) +#define TFT_DC_L WRITE(TFT_DC_PIN, LOW) + +#define TFT_RST_H WRITE(TFT_RESET_PIN, HIGH) +#define TFT_RST_L WRITE(TFT_RESET_PIN, LOW) + +#define TFT_BLK_H WRITE(TFT_BACKLIGHT_PIN, HIGH) +#define TFT_BLK_L WRITE(TFT_BACKLIGHT_PIN, LOW) + +void TFT_SPI::Init() { + #if PIN_EXISTS(TFT_RESET) + SET_OUTPUT(TFT_RESET_PIN); + TFT_RST_H; + delay(100); + #endif + + #if PIN_EXISTS(TFT_BACKLIGHT) + SET_OUTPUT(TFT_BACKLIGHT_PIN); + TFT_BLK_H; + #endif + + SET_OUTPUT(TFT_DC_PIN); + SET_OUTPUT(TFT_CS_PIN); + + TFT_DC_H; + TFT_CS_H; + + /** + * STM32F1 APB2 = 72MHz, APB1 = 36MHz, max SPI speed of this MCU if 18Mhz + * STM32F1 has 3 SPI ports, SPI1 in APB2, SPI2/SPI3 in APB1 + * so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2 + */ + #if 0 + #if SPI_DEVICE == 1 + #define SPI_CLOCK_MAX SPI_CLOCK_DIV4 + #else + #define SPI_CLOCK_MAX SPI_CLOCK_DIV2 + #endif + uint8_t clock; + uint8_t spiRate = SPI_FULL_SPEED; + switch (spiRate) { + case SPI_FULL_SPEED: clock = SPI_CLOCK_MAX ; break; + case SPI_HALF_SPEED: clock = SPI_CLOCK_DIV4 ; break; + case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8 ; break; + case SPI_EIGHTH_SPEED: clock = SPI_CLOCK_DIV16; break; + case SPI_SPEED_5: clock = SPI_CLOCK_DIV32; break; + case SPI_SPEED_6: clock = SPI_CLOCK_DIV64; break; + default: clock = SPI_CLOCK_DIV2; // Default from the SPI library + } + #endif + + #if TFT_MISO_PIN == BOARD_SPI1_MISO_PIN + SPIx.setModule(1); + #elif TFT_MISO_PIN == BOARD_SPI2_MISO_PIN + SPIx.setModule(2); + #endif + SPIx.setClock(SPI_CLOCK_MAX_TFT); + SPIx.setBitOrder(MSBFIRST); + SPIx.setDataMode(SPI_MODE0); +} + +void TFT_SPI::DataTransferBegin(uint16_t DataSize) { + SPIx.setDataSize(DataSize); + SPIx.begin(); + TFT_CS_L; +} + +uint32_t TFT_SPI::GetID() { + uint32_t id; + id = ReadID(LCD_READ_ID); + if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF) + id = ReadID(LCD_READ_ID4); + return id; +} + +uint32_t TFT_SPI::ReadID(uint16_t Reg) { + uint32_t data = 0; + + #if PIN_EXISTS(TFT_MISO) + uint8_t d = 0; + SPIx.setDataSize(DATASIZE_8BIT); + SPIx.setClock(SPI_CLOCK_DIV64); + SPIx.begin(); + TFT_CS_L; + WriteReg(Reg); + + LOOP_L_N(i, 4) { + SPIx.read((uint8_t*)&d, 1); + data = (data << 8) | d; + } + + DataTransferEnd(); + SPIx.setClock(SPI_CLOCK_MAX_TFT); + #endif + + return data >> 7; +} + +bool TFT_SPI::isBusy() { + return false; +} + +void TFT_SPI::Abort() { + DataTransferEnd(); +} + +void TFT_SPI::Transmit(uint16_t Data) { + SPIx.transfer(Data); +} + +void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) { + DataTransferBegin(DATASIZE_16BIT); //16 + TFT_DC_H; + SPIx.dmaSend(Data, Count, MemoryIncrease); + DataTransferEnd(); +} + +#endif // HAS_SPI_TFT diff --git a/Marlin/src/HAL/LPC1768/tft/tft_spi.h b/Marlin/src/HAL/LPC1768/tft/tft_spi.h new file mode 100644 index 0000000..4753fdb --- /dev/null +++ b/Marlin/src/HAL/LPC1768/tft/tft_spi.h @@ -0,0 +1,77 @@ +/** + * 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 + +#include "../../../inc/MarlinConfig.h" + +#include <SPI.h> +#include <lpc17xx_ssp.h> +// #include <lpc17xx_gpdma.h> + +#ifndef LCD_READ_ID + #define LCD_READ_ID 0x04 // Read display identification information (0xD3 on ILI9341) +#endif +#ifndef LCD_READ_ID4 + #define LCD_READ_ID4 0xD3 // Read display identification information (0xD3 on ILI9341) +#endif + +#define DATASIZE_8BIT SSP_DATABIT_8 +#define DATASIZE_16BIT SSP_DATABIT_16 +#define TFT_IO_DRIVER TFT_SPI + +#define DMA_MINC_ENABLE 1 +#define DMA_MINC_DISABLE 0 + +class TFT_SPI { +private: + static uint32_t ReadID(uint16_t Reg); + static void Transmit(uint16_t Data); + static void TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count); + +public: + static SPIClass SPIx; + + static void Init(); + static uint32_t GetID(); + static bool isBusy(); + static void Abort(); + + static void DataTransferBegin(uint16_t DataWidth = DATASIZE_16BIT); + static void DataTransferEnd() { OUT_WRITE(TFT_CS_PIN, HIGH); SPIx.end(); }; + static void DataTransferAbort(); + + static void WriteData(uint16_t Data) { Transmit(Data); } + static void WriteReg(uint16_t Reg) { OUT_WRITE(TFT_A0_PIN, LOW); Transmit(Reg); OUT_WRITE(TFT_A0_PIN, HIGH); } + + static void WriteSequence(uint16_t *Data, uint16_t Count) { TransmitDMA(DMA_MINC_ENABLE, Data, Count); } + // static void WriteMultiple(uint16_t Color, uint16_t Count) { static uint16_t Data; Data = Color; TransmitDMA(DMA_MINC_DISABLE, &Data, Count); } + static void WriteMultiple(uint16_t Color, uint32_t Count) { + static uint16_t Data; Data = Color; + //LPC dma can only write 0xFFF bytes at once. + #define MAX_DMA_SIZE (0xFFF - 1) + while (Count > 0) { + TransmitDMA(DMA_MINC_DISABLE, &Data, Count > MAX_DMA_SIZE ? MAX_DMA_SIZE : Count); + Count = Count > MAX_DMA_SIZE ? Count - MAX_DMA_SIZE : 0; + } + #undef MAX_DMA_SIZE + } +}; diff --git a/Marlin/src/HAL/LPC1768/tft/xpt2046.cpp b/Marlin/src/HAL/LPC1768/tft/xpt2046.cpp new file mode 100644 index 0000000..cf14405 --- /dev/null +++ b/Marlin/src/HAL/LPC1768/tft/xpt2046.cpp @@ -0,0 +1,131 @@ +/** + * 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/>. + * + */ + +#include "../../../inc/MarlinConfig.h" + +#if HAS_TFT_XPT2046 || HAS_TOUCH_BUTTONS + +#include "xpt2046.h" +#include <SPI.h> + +uint16_t delta(uint16_t a, uint16_t b) { return a > b ? a - b : b - a; } + +#if ENABLED(TOUCH_BUTTONS_HW_SPI) + #include <SPI.h> + + SPIClass XPT2046::SPIx(TOUCH_BUTTONS_HW_SPI_DEVICE); + + static void touch_spi_init(uint8_t spiRate) { + XPT2046::SPIx.setModule(TOUCH_BUTTONS_HW_SPI_DEVICE); + XPT2046::SPIx.setClock(SPI_CLOCK_DIV128); + XPT2046::SPIx.setBitOrder(MSBFIRST); + XPT2046::SPIx.setDataMode(SPI_MODE0); + XPT2046::SPIx.setDataSize(DATA_SIZE_8BIT); + } +#endif + +void XPT2046::Init() { + SET_INPUT(TOUCH_MISO_PIN); + SET_OUTPUT(TOUCH_MOSI_PIN); + SET_OUTPUT(TOUCH_SCK_PIN); + OUT_WRITE(TOUCH_CS_PIN, HIGH); + + #if PIN_EXISTS(TOUCH_INT) + // Optional Pendrive interrupt pin + SET_INPUT(TOUCH_INT_PIN); + #endif + + TERN_(TOUCH_BUTTONS_HW_SPI, touch_spi_init(SPI_SPEED_6)); + + // Read once to enable pendrive status pin + getRawData(XPT2046_X); +} + +bool XPT2046::isTouched() { + return isBusy() ? false : ( + #if PIN_EXISTS(TOUCH_INT) + READ(TOUCH_INT_PIN) != HIGH + #else + getRawData(XPT2046_Z1) >= XPT2046_Z1_THRESHOLD + #endif + ); +} + +bool XPT2046::getRawPoint(int16_t *x, int16_t *y) { + if (isBusy()) return false; + if (!isTouched()) return false; + *x = getRawData(XPT2046_X); + *y = getRawData(XPT2046_Y); + return isTouched(); +} + +uint16_t XPT2046::getRawData(const XPTCoordinate coordinate) { + uint16_t data[3]; + + DataTransferBegin(); + TERN_(TOUCH_BUTTONS_HW_SPI, SPIx.begin()); + + for (uint16_t i = 0; i < 3 ; i++) { + IO(coordinate); + data[i] = (IO() << 4) | (IO() >> 4); + } + + TERN_(TOUCH_BUTTONS_HW_SPI, SPIx.end()); + DataTransferEnd(); + + uint16_t delta01 = delta(data[0], data[1]), + delta02 = delta(data[0], data[2]), + delta12 = delta(data[1], data[2]); + + if (delta01 > delta02 || delta01 > delta12) + data[delta02 > delta12 ? 0 : 1] = data[2]; + + return (data[0] + data[1]) >> 1; +} + +uint16_t XPT2046::IO(uint16_t data) { + return TERN(TOUCH_BUTTONS_HW_SPI, HardwareIO, SoftwareIO)(data); +} + +extern uint8_t spiTransfer(uint8_t b); + +#if ENABLED(TOUCH_BUTTONS_HW_SPI) + uint16_t XPT2046::HardwareIO(uint16_t data) { + return SPIx.transfer(data & 0xFF); + } +#endif + +uint16_t XPT2046::SoftwareIO(uint16_t data) { + uint16_t result = 0; + + for (uint8_t j = 0x80; j; j >>= 1) { + WRITE(TOUCH_SCK_PIN, LOW); + WRITE(TOUCH_MOSI_PIN, data & j ? HIGH : LOW); + if (READ(TOUCH_MISO_PIN)) result |= j; + WRITE(TOUCH_SCK_PIN, HIGH); + } + WRITE(TOUCH_SCK_PIN, LOW); + + return result; +} + +#endif // HAS_TFT_XPT2046 diff --git a/Marlin/src/HAL/LPC1768/tft/xpt2046.h b/Marlin/src/HAL/LPC1768/tft/xpt2046.h new file mode 100644 index 0000000..65602bd --- /dev/null +++ b/Marlin/src/HAL/LPC1768/tft/xpt2046.h @@ -0,0 +1,83 @@ +/** + * 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 + +#include "../../../inc/MarlinConfig.h" + +#if ENABLED(TOUCH_BUTTONS_HW_SPI) + #include <SPI.h> +#endif + +#ifndef TOUCH_MISO_PIN + #define TOUCH_MISO_PIN SD_MISO_PIN +#endif +#ifndef TOUCH_MOSI_PIN + #define TOUCH_MOSI_PIN SD_MOSI_PIN +#endif +#ifndef TOUCH_SCK_PIN + #define TOUCH_SCK_PIN SD_SCK_PIN +#endif +#ifndef TOUCH_CS_PIN + #define TOUCH_CS_PIN SD_SS_PIN +#endif +#ifndef TOUCH_INT_PIN + #define TOUCH_INT_PIN -1 +#endif + +#define XPT2046_DFR_MODE 0x00 +#define XPT2046_SER_MODE 0x04 +#define XPT2046_CONTROL 0x80 + +enum XPTCoordinate : uint8_t { + XPT2046_X = 0x10 | XPT2046_CONTROL | XPT2046_DFR_MODE, + XPT2046_Y = 0x50 | XPT2046_CONTROL | XPT2046_DFR_MODE, + XPT2046_Z1 = 0x30 | XPT2046_CONTROL | XPT2046_DFR_MODE, + XPT2046_Z2 = 0x40 | XPT2046_CONTROL | XPT2046_DFR_MODE, +}; + +#if !defined(XPT2046_Z1_THRESHOLD) + #define XPT2046_Z1_THRESHOLD 10 +#endif + +class XPT2046 { +private: + static bool isBusy() { return false; } + + static uint16_t getRawData(const XPTCoordinate coordinate); + static bool isTouched(); + + static inline void DataTransferBegin() { WRITE(TOUCH_CS_PIN, LOW); }; + static inline void DataTransferEnd() { WRITE(TOUCH_CS_PIN, HIGH); }; + #if ENABLED(TOUCH_BUTTONS_HW_SPI) + static uint16_t HardwareIO(uint16_t data); + #endif + static uint16_t SoftwareIO(uint16_t data); + static uint16_t IO(uint16_t data = 0); + +public: + #if ENABLED(TOUCH_BUTTONS_HW_SPI) + static SPIClass SPIx; + #endif + + static void Init(); + static bool getRawPoint(int16_t *x, int16_t *y); +}; |