diff options
Diffstat (limited to 'ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_com_arduino_fast_parallel.c')
| -rwxr-xr-x | ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_com_arduino_fast_parallel.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_com_arduino_fast_parallel.c b/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_com_arduino_fast_parallel.c new file mode 100755 index 000000000..91a32e6f0 --- /dev/null +++ b/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_com_arduino_fast_parallel.c @@ -0,0 +1,245 @@ +/* + + u8g_arduino_fast_parallel.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. + + PIN_D0 8 + PIN_D1 9 + PIN_D2 10 + PIN_D3 11 + PIN_D4 4 + PIN_D5 5 + PIN_D6 6 + PIN_D7 7 + + PIN_CS1 14 + PIN_CS2 15 + PIN_RW 16 + PIN_DI 17 + PIN_EN 18 + + u8g_Init8Bit(u8g, dev, d0, d1, d2, d3, d4, d5, d6, d7, en, cs1, cs2, di, rw, reset) + u8g_Init8Bit(u8g, dev, 8, 9, 10, 11, 4, 5, 6, 7, 18, 14, 15, 17, 16, U8G_PIN_NONE) + +*/ + +#include "u8g.h" + +#if defined(ARDUINO) + +#if ARDUINO < 100 +//#include <WProgram.h> +#include <wiring_private.h> +#include <pins_arduino.h> +#else +#include <Arduino.h> +#endif + + +#define PIN_D0 8 +#define PIN_D1 9 +#define PIN_D2 10 +#define PIN_D3 11 +#define PIN_D4 4 +#define PIN_D5 5 +#define PIN_D6 6 +#define PIN_D7 7 + +#define PIN_CS1 14 +#define PIN_CS2 15 +#define PIN_RW 16 +#define PIN_DI 17 +#define PIN_EN 18 + +//#define PIN_RESET + + +#if defined(__PIC32MX) +/* CHIPKIT PIC32 */ +static volatile uint32_t *u8g_data_port[8]; +static uint32_t u8g_data_mask[8]; +#else +static volatile uint8_t *u8g_data_port[8]; +static uint8_t u8g_data_mask[8]; +#endif + + + +static void u8g_com_arduino_fast_parallel_init(u8g_t *u8g) +{ + u8g_data_port[0] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D0])); + u8g_data_mask[0] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D0]); + u8g_data_port[1] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D1])); + u8g_data_mask[1] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D1]); + u8g_data_port[2] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D2])); + u8g_data_mask[2] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D2]); + u8g_data_port[3] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D3])); + u8g_data_mask[3] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D3]); + + u8g_data_port[4] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D4])); + u8g_data_mask[4] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D4]); + u8g_data_port[5] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D5])); + u8g_data_mask[5] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D5]); + u8g_data_port[6] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D6])); + u8g_data_mask[6] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D6]); + u8g_data_port[7] = portOutputRegister(digitalPinToPort(u8g->pin_list[U8G_PI_D7])); + u8g_data_mask[7] = digitalPinToBitMask(u8g->pin_list[U8G_PI_D7]); +} + +void u8g_com_arduino_fast_write_data_pin(uint8_t pin, uint8_t val) +{ + if ( val != 0 ) + *u8g_data_port[pin] |= u8g_data_mask[pin]; + else + *u8g_data_port[pin] &= ~u8g_data_mask[pin]; +} + + +void u8g_com_arduino_fast_parallel_write(u8g_t *u8g, uint8_t val) +{ + u8g_com_arduino_fast_write_data_pin( 0, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 1, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 2, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 3, val&1 ); + val >>= 1; + + u8g_com_arduino_fast_write_data_pin( 4, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 5, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 6, val&1 ); + val >>= 1; + u8g_com_arduino_fast_write_data_pin( 7, val&1 ); + val >>= 1; + + /* EN cycle time must be 1 micro second */ + u8g_com_arduino_digital_write(u8g, U8G_PI_EN, HIGH); + u8g_MicroDelay(); /* delay by 1000ns, reference: ST7920: 140ns, SBN1661: 100ns */ + u8g_com_arduino_digital_write(u8g, U8G_PI_EN, LOW); + u8g_10MicroDelay(); /* ST7920 commands: 72us */ + u8g_10MicroDelay(); /* ST7920 commands: 72us */ +} + + +uint8_t u8g_com_arduino_fast_parallel_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) +{ + switch(msg) + { + case U8G_COM_MSG_INIT: + u8g_com_arduino_fast_parallel_init(u8g); + /* setup the RW pin as output and force it to low */ + if ( u8g->pin_list[U8G_PI_RW] != U8G_PIN_NONE ) + { + pinMode(u8g->pin_list[U8G_PI_RW], OUTPUT); + u8g_com_arduino_digital_write(u8g, U8G_PI_RW, LOW); + } + /* set all pins (except RW pin) */ + u8g_com_arduino_assign_pin_output_high(u8g); + break; + case U8G_COM_MSG_STOP: + break; + + case U8G_COM_MSG_CHIP_SELECT: + if ( arg_val == 0 ) + { + /* disable */ + u8g_com_arduino_digital_write(u8g, U8G_PI_CS1, HIGH); + u8g_com_arduino_digital_write(u8g, U8G_PI_CS2, HIGH); + } + else if ( arg_val == 1 ) + { + /* enable */ + u8g_com_arduino_digital_write(u8g, U8G_PI_CS1, LOW); + u8g_com_arduino_digital_write(u8g, U8G_PI_CS2, HIGH); + } + else if ( arg_val == 2 ) + { + /* enable */ + u8g_com_arduino_digital_write(u8g, U8G_PI_CS1, HIGH); + u8g_com_arduino_digital_write(u8g, U8G_PI_CS2, LOW); + } + else + { + /* enable */ + u8g_com_arduino_digital_write(u8g, U8G_PI_CS1, LOW); + u8g_com_arduino_digital_write(u8g, U8G_PI_CS2, LOW); + } + break; + case U8G_COM_MSG_WRITE_BYTE: + u8g_com_arduino_fast_parallel_write(u8g, arg_val); + break; + case U8G_COM_MSG_WRITE_SEQ: + { + register uint8_t *ptr = arg_ptr; + while( arg_val > 0 ) + { + u8g_com_arduino_fast_parallel_write(u8g, *ptr++); + arg_val--; + } + } + break; + case U8G_COM_MSG_WRITE_SEQ_P: + { + register uint8_t *ptr = arg_ptr; + while( arg_val > 0 ) + { + u8g_com_arduino_fast_parallel_write(u8g, 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_com_arduino_digital_write(u8g, U8G_PI_DI, arg_val); + break; + case U8G_COM_MSG_RESET: + if ( u8g->pin_list[U8G_PI_RESET] != U8G_PIN_NONE ) + u8g_com_arduino_digital_write(u8g, U8G_PI_RESET, arg_val); + break; + + } + return 1; +} + +#else + + +uint8_t u8g_com_arduino_fast_parallel_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) +{ + return 1; +} + + +#endif /* ARDUINO */ + |