mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-28 13:43:08 +00:00
148 lines
4.8 KiB
C
148 lines
4.8 KiB
C
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/*
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u8x8_setup.c
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
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Copyright (c) 2016, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "u8x8.h"
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/* universal dummy callback, which will be default for all callbacks */
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uint8_t u8x8_dummy_cb(U8X8_UNUSED u8x8_t *u8x8, U8X8_UNUSED uint8_t msg, U8X8_UNUSED uint8_t arg_int, U8X8_UNUSED void *arg_ptr)
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{
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/* the dummy callback will not handle any message and will fail for all messages */
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return 0;
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}
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static const u8x8_display_info_t u8x8_null_display_info =
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{
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/* chip_enable_level = */ 0,
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/* chip_disable_level = */ 1,
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/* post_chip_enable_wait_ns = */ 0,
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/* pre_chip_disable_wait_ns = */ 0,
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/* reset_pulse_width_ms = */ 0,
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/* post_reset_wait_ms = */ 0,
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/* sda_setup_time_ns = */ 0,
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/* sck_pulse_width_ns = */ 0, /* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
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/* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
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/* spi_mode = */ 0, /* active high, rising edge */
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/* i2c_bus_clock_100kHz = */ 4,
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/* data_setup_time_ns = */ 0,
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/* write_pulse_width_ns = */ 0,
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/* tile_width = */ 1, /* 8x8 */
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/* tile_hight = */ 1,
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/* default_x_offset = */ 0,
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/* flipmode_x_offset = */ 0,
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/* pixel_width = */ 8,
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/* pixel_height = */ 8
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};
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/* a special null device */
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uint8_t u8x8_d_null_cb(u8x8_t *u8x8, uint8_t msg, U8X8_UNUSED uint8_t arg_int, U8X8_UNUSED void *arg_ptr)
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{
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switch(msg)
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{
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case U8X8_MSG_DISPLAY_SETUP_MEMORY:
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u8x8_d_helper_display_setup_memory(u8x8, &u8x8_null_display_info);
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break;
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case U8X8_MSG_DISPLAY_INIT:
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u8x8_d_helper_display_init(u8x8);
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break;
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}
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/* the null device callback will succeed for all messages */
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return 1;
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}
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/*
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Description:
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Setup u8x8
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Args:
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u8x8 An empty u8x8 structure
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*/
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void u8x8_SetupDefaults(u8x8_t *u8x8)
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{
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u8x8->display_info = NULL;
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u8x8->display_cb = u8x8_dummy_cb;
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u8x8->cad_cb = u8x8_dummy_cb;
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u8x8->byte_cb = u8x8_dummy_cb;
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u8x8->gpio_and_delay_cb = u8x8_dummy_cb;
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u8x8->is_font_inverse_mode = 0;
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//u8x8->device_address = 0;
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u8x8->utf8_state = 0; /* also reset by u8x8_utf8_init */
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u8x8->bus_clock = 0; /* issue 769 */
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u8x8->i2c_address = 255;
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u8x8->debounce_default_pin_state = 255; /* assume all low active buttons */
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#ifdef U8X8_USE_PINS
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{
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uint8_t i;
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for( i = 0; i < U8X8_PIN_CNT; i++ )
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u8x8->pins[i] = U8X8_PIN_NONE;
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}
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#endif
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}
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/*
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Description:
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Setup u8x8 and assign the callback function. The dummy
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callback "u8x8_dummy_cb" can be used, if no callback is required.
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This setup will not communicate with the display itself.
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Use u8x8_InitDisplay() to send the startup code to the Display.
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Args:
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u8x8 An empty u8x8 structure
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display_cb Display/controller specific callback function
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cad_cb Display controller specific communication callback function
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byte_cb Display controller/communication specific callback funtion
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gpio_and_delay_cb Environment specific callback function
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*/
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void u8x8_Setup(u8x8_t *u8x8, u8x8_msg_cb display_cb, u8x8_msg_cb cad_cb, u8x8_msg_cb byte_cb, u8x8_msg_cb gpio_and_delay_cb)
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{
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/* setup defaults and reset pins to U8X8_PIN_NONE */
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u8x8_SetupDefaults(u8x8);
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/* setup specific callbacks */
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u8x8->display_cb = display_cb;
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u8x8->cad_cb = cad_cb;
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u8x8->byte_cb = byte_cb;
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u8x8->gpio_and_delay_cb = gpio_and_delay_cb;
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/* setup display info */
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u8x8_SetupMemory(u8x8);
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}
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