Tanguy Pruvot
6 years ago
committed by
Scott Lahteine
Scott Lahteine
6 changed files with 220 additions and 22 deletions
@ -0,0 +1,165 @@ |
|||
/**
|
|||
* Marlin 3D Printer Firmware |
|||
* Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|||
* |
|||
* 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/>.
|
|||
* |
|||
*/ |
|||
#ifdef __STM32F1__ |
|||
|
|||
#include "../../inc/MarlinConfig.h" |
|||
|
|||
#if HAS_GRAPHICAL_LCD |
|||
|
|||
#include "HAL.h" |
|||
#include <U8glib.h> |
|||
|
|||
#undef SPI_SPEED |
|||
#define SPI_SPEED 0 // Fastest
|
|||
//#define SPI_SPEED 2 // Slower
|
|||
|
|||
static uint8_t SPI_speed = SPI_SPEED; |
|||
|
|||
static inline uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t miso_pin=-1) { |
|||
for (uint8_t i = 0; i < 8; i++) { |
|||
if (spi_speed == 0) { |
|||
WRITE(DOGLCD_MOSI, !!(b & 0x80)); |
|||
WRITE(DOGLCD_SCK, HIGH); |
|||
b <<= 1; |
|||
if (miso_pin >= 0 && READ(miso_pin)) b |= 1; |
|||
WRITE(DOGLCD_SCK, LOW); |
|||
} |
|||
else { |
|||
const uint8_t state = (b & 0x80) ? HIGH : LOW; |
|||
for (uint8_t j = 0; j < spi_speed; j++) |
|||
WRITE(DOGLCD_MOSI, state); |
|||
|
|||
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++) |
|||
WRITE(DOGLCD_SCK, HIGH); |
|||
|
|||
b <<= 1; |
|||
if (miso_pin >= 0 && READ(miso_pin)) b |= 1; |
|||
|
|||
for (uint8_t j = 0; j < spi_speed; j++) |
|||
WRITE(DOGLCD_SCK, LOW); |
|||
} |
|||
} |
|||
return b; |
|||
} |
|||
|
|||
static inline uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t miso_pin=-1) { |
|||
for (uint8_t i = 0; i < 8; i++) { |
|||
const uint8_t state = (b & 0x80) ? HIGH : LOW; |
|||
if (spi_speed == 0) { |
|||
WRITE(DOGLCD_SCK, LOW); |
|||
WRITE(DOGLCD_MOSI, state); |
|||
WRITE(DOGLCD_MOSI, state); // need some setup time
|
|||
WRITE(DOGLCD_SCK, HIGH); |
|||
} |
|||
else { |
|||
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++) |
|||
WRITE(DOGLCD_SCK, LOW); |
|||
|
|||
for (uint8_t j = 0; j < spi_speed; j++) |
|||
WRITE(DOGLCD_MOSI, state); |
|||
|
|||
for (uint8_t j = 0; j < spi_speed; j++) |
|||
WRITE(DOGLCD_SCK, HIGH); |
|||
} |
|||
b <<= 1; |
|||
if (miso_pin >= 0 && READ(miso_pin)) b |= 1; |
|||
} |
|||
return b; |
|||
} |
|||
|
|||
static void u8g_sw_spi_HAL_STM32F1_shift_out(uint8_t val) { |
|||
#if ENABLED(FYSETC_MINI_12864) |
|||
swSpiTransfer_mode_3(val, SPI_speed); |
|||
#else |
|||
swSpiTransfer_mode_0(val, SPI_speed); |
|||
#endif |
|||
} |
|||
|
|||
static uint8_t swSpiInit(const uint8_t spi_speed) { |
|||
#if PIN_EXISTS(LCD_RESET) |
|||
SET_OUTPUT(LCD_RESET_PIN); |
|||
#endif |
|||
SET_OUTPUT(DOGLCD_A0); |
|||
OUT_WRITE(DOGLCD_SCK, LOW); |
|||
OUT_WRITE(DOGLCD_MOSI, LOW); |
|||
OUT_WRITE(DOGLCD_CS, HIGH); |
|||
return spi_speed; |
|||
} |
|||
|
|||
uint8_t u8g_com_HAL_STM32F1_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) { |
|||
switch (msg) { |
|||
case U8G_COM_MSG_INIT: |
|||
SPI_speed = swSpiInit(SPI_SPEED); |
|||
break; |
|||
|
|||
case U8G_COM_MSG_STOP: |
|||
break; |
|||
|
|||
case U8G_COM_MSG_RESET: |
|||
#if PIN_EXISTS(LCD_RESET) |
|||
WRITE(LCD_RESET_PIN, arg_val); |
|||
#endif |
|||
break; |
|||
|
|||
case U8G_COM_MSG_CHIP_SELECT: |
|||
#if ENABLED(FYSETC_MINI_12864) // This 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
|
|||
WRITE(DOGLCD_SCK, HIGH); // Set SCK to mode 3 idle state before CS goes active
|
|||
WRITE(DOGLCD_CS, LOW); |
|||
} |
|||
else { |
|||
WRITE(DOGLCD_CS, HIGH); |
|||
WRITE(DOGLCD_SCK, LOW); // Set SCK to mode 0 idle state after CS goes inactive
|
|||
} |
|||
#else |
|||
WRITE(DOGLCD_CS, !arg_val); |
|||
#endif |
|||
break; |
|||
|
|||
case U8G_COM_MSG_WRITE_BYTE: |
|||
u8g_sw_spi_HAL_STM32F1_shift_out(arg_val); |
|||
break; |
|||
|
|||
case U8G_COM_MSG_WRITE_SEQ: { |
|||
uint8_t *ptr = (uint8_t *)arg_ptr; |
|||
while (arg_val > 0) { |
|||
u8g_sw_spi_HAL_STM32F1_shift_out(*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_STM32F1_shift_out(u8g_pgm_read(ptr)); |
|||
ptr++; |
|||
arg_val--; |
|||
} |
|||
} break; |
|||
|
|||
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */ |
|||
WRITE(DOGLCD_A0, arg_val); |
|||
break; |
|||
} |
|||
return 1; |
|||
} |
|||
|
|||
#endif // HAS_GRAPHICAL_LCD
|
|||
#endif // STM32F1
|
|||
Loading…
Reference in new issue