--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/u8g2/csrc/u8x8_d_uc1701_mini12864.c Tue Oct 08 12:00:31 2019 +0200
@@ -0,0 +1,205 @@
+/*
+
+ u8x8_d_uc1701_mini12864.c (dealextreme, displays from ebay MP3 players)
+
+ Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
+
+ Copyright (c) 2016, 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.
+
+
+*/
+#include "u8x8.h"
+
+
+
+
+static const uint8_t u8x8_d_uc1701_mini12864_init_seq[] = {
+
+ U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+
+ U8X8_C(0x0e2), /* soft reset */
+ U8X8_C(0x0ae), /* display off */
+ U8X8_C(0x040), /* set display start line to 0 */
+
+ U8X8_C(0x0a0), /* ADC set to reverse */
+ U8X8_C(0x0c8), /* common output mode */
+
+ U8X8_C(0x0a6), /* display normal, bit val 0: LCD pixel off. */
+ U8X8_C(0x0a2), /* LCD bias 1/9 */
+ U8X8_C(0x02f), /* all power control circuits on */
+ U8X8_C(0x0f8), /* set booster ratio to */
+ U8X8_C(0x000), /* 4x */
+ U8X8_C(0x023), /* set V0 voltage resistor ratio to large */
+ U8X8_C(0x081), /* set contrast */
+ U8X8_C(0x027), /* contrast value */
+ U8X8_C(0x0ac), /* indicator */
+ // 0x000, /* disable */
+
+ U8X8_C(0x0ae), /* display off */
+ U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
+
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_powersave0_seq[] = {
+ U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+ U8X8_C(0x0a4), /* all pixel off, issue 142 */
+ U8X8_C(0x0af), /* display on */
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_powersave1_seq[] = {
+ U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+ U8X8_C(0x0ae), /* display off */
+ U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_flip0_seq[] = {
+ U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+ U8X8_C(0x0a0), /* segment remap a0/a1*/
+ U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_flip1_seq[] = {
+ U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+ U8X8_C(0x0a1), /* segment remap a0/a1*/
+ U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+
+static const u8x8_display_info_t u8x8_uc1701_display_info =
+{
+ /* chip_enable_level = */ 0,
+ /* chip_disable_level = */ 1,
+
+ /* post_chip_enable_wait_ns = */ 5,
+ /* pre_chip_disable_wait_ns = */ 5,
+ /* reset_pulse_width_ms = */ 1,
+ /* post_reset_wait_ms = */ 6,
+ /* sda_setup_time_ns = */ 12,
+ /* sck_pulse_width_ns = */ 75, /* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+ /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
+ /* spi_mode = */ 0, /* active high, rising edge */
+ /* i2c_bus_clock_100kHz = */ 4,
+ /* data_setup_time_ns = */ 30,
+ /* write_pulse_width_ns = */ 40,
+ /* tile_width = */ 16, /* width of 16*8=128 pixel */
+ /* tile_hight = */ 8,
+ /* default_x_offset = */ 0,
+ /* flipmode_x_offset = */ 4,
+ /* pixel_width = */ 128,
+ /* pixel_height = */ 64
+};
+
+uint8_t u8x8_d_uc1701_mini12864(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+ uint8_t x, c;
+ uint8_t *ptr;
+ switch(msg)
+ {
+ case U8X8_MSG_DISPLAY_SETUP_MEMORY:
+ u8x8_d_helper_display_setup_memory(u8x8, &u8x8_uc1701_display_info);
+ break;
+ case U8X8_MSG_DISPLAY_INIT:
+ u8x8_d_helper_display_init(u8x8);
+ u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_init_seq);
+ break;
+ case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
+ if ( arg_int == 0 )
+ u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_powersave0_seq);
+ else
+ u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_powersave1_seq);
+ break;
+ case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
+ if ( arg_int == 0 )
+ {
+ u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_flip0_seq);
+ u8x8->x_offset = u8x8->display_info->default_x_offset;
+ }
+ else
+ {
+ u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_flip1_seq);
+ u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
+ }
+ break;
+#ifdef U8X8_WITH_SET_CONTRAST
+ case U8X8_MSG_DISPLAY_SET_CONTRAST:
+ u8x8_cad_StartTransfer(u8x8);
+ u8x8_cad_SendCmd(u8x8, 0x081 );
+ u8x8_cad_SendArg(u8x8, arg_int >> 2 ); /* uc1701 has range from 0 to 63 */
+ u8x8_cad_EndTransfer(u8x8);
+ break;
+#endif
+ case U8X8_MSG_DISPLAY_DRAW_TILE:
+ u8x8_cad_StartTransfer(u8x8);
+
+ x = ((u8x8_tile_t *)arg_ptr)->x_pos;
+ x *= 8;
+ x += u8x8->x_offset;
+ u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) );
+ u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
+ u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
+
+ c = ((u8x8_tile_t *)arg_ptr)->cnt;
+ c *= 8;
+ ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
+ /*
+ The following if condition checks the hardware limits of the uc1701
+ controller: It is not allowed to write beyond the display limits.
+ This is in fact an issue within flip mode.
+
+ bug: this check should be inside the while loop, see u8x8_d_pcd8544_84x48.c
+ */
+ if ( c + x > 132u )
+ {
+ c = 132u;
+ c -= x;
+ }
+ do
+ {
+ u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
+ arg_int--;
+ } while( arg_int > 0 );
+
+ u8x8_cad_EndTransfer(u8x8);
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+