diff options
Diffstat (limited to 'ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_com_arduino_port_d_wr.c')
-rwxr-xr-x | ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_com_arduino_port_d_wr.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_com_arduino_port_d_wr.c b/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_com_arduino_port_d_wr.c new file mode 100755 index 000000000..64a8229e1 --- /dev/null +++ b/ArduinoAddons/Arduino_1.0.x/libraries/U8glib/utility/u8g_com_arduino_port_d_wr.c @@ -0,0 +1,177 @@ +/* + + u8g_arduino_port_d_wr.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. + + + Assumes PORTD for 8 bit data transfer. + EN is assumed to be a low active write signal (WR) + + ILI9325D_320x240 from iteadstudio.com + RS=19, WR=18, CS=17, RST=16 + + + 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) + + + Update for ATOMIC operation done (01 Jun 2013) + U8G_ATOMIC_OR(ptr, val) + U8G_ATOMIC_AND(ptr, val) + U8G_ATOMIC_START(); + U8G_ATOMIC_END(); + +*/ + +#include "u8g.h" + + +#if defined(ARDUINO) && defined(PORTD) + +#if ARDUINO < 100 +#include <WProgram.h> +#else +#include <Arduino.h> +#endif + + + + + + +static void u8g_com_arduino_port_d_8bit_wr(u8g_t *u8g, uint8_t val) +{ + PORTD = val; + + /* WR cycle time must be 1 micro second, digitalWrite is slow enough to do this */ + u8g_com_arduino_digital_write(u8g, U8G_PI_EN, LOW); + u8g_com_arduino_digital_write(u8g, U8G_PI_EN, HIGH); +} + + +uint8_t u8g_com_arduino_port_d_wr_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) +{ + + switch(msg) + { + case U8G_COM_MSG_INIT: + +#ifdef UCSR0B + UCSR0B = 0; // disable USART 0 +#endif + U8G_ATOMIC_START(); + DDRD = 0x0ff; + PORTD = 0x0ff; + U8G_ATOMIC_END(); + + /* 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, HIGH); + } + /* set all pins (except RW pin) */ + u8g_com_arduino_assign_pin_output_high(u8g); + u8g_com_arduino_digital_write(u8g, U8G_PI_EN, HIGH); + 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_port_d_8bit_wr(u8g, arg_val); + break; + case U8G_COM_MSG_WRITE_SEQ: + { + register uint8_t *ptr = arg_ptr; + while( arg_val > 0 ) + { + u8g_com_arduino_port_d_8bit_wr(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_port_d_8bit_wr(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_port_d_wr_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) +{ + return 1; +} + +#endif /* ARDUINO && PORTD */ + |