--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/u8g2/csrc/u8x8_d_ssd1306_48x64.c Tue Oct 08 12:00:31 2019 +0200
@@ -0,0 +1,215 @@
+/*
+
+ u8x8_d_ssd1306_48x64_winstar.c
+
+ 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"
+
+/* Winstar 0.71 OLED */
+static const uint8_t u8x8_d_ssd1306_48x64_winstar_init_seq[] =
+{
+
+U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+
+ U8X8_C(0x0ae), /* display off */
+ U8X8_CA(0x0d5, 0x080), /* clock divide ratio (0x00=1) and oscillator frequency (0x8) */
+ U8X8_CA(0x0a8, 0x03f), /* multiplex ratio, 0.71 OLED: changed from 0x2f to 0x3f */
+ U8X8_CA(0x0d3, 0x000), /* display offset, 0.71 OLED */
+ U8X8_C(0x040), /* set display start line to 0, 0.71 OLED */
+ U8X8_CA(0x08d, 0x014), /* [2] charge pump setting (p62): 0x014 enable, 0x010 disable, 0.71 OLED 0x14*/
+
+ /// according to the datasheet, 0x00 is NOT page addressing mode, but horizontal addressing mode;
+ /// so it looks like u8g2 expects horizontal addressing (and the inline comment is wrong) while the Winstar example
+ /// actually uses page addressing (which is the reset default)
+ U8X8_CA(0x020, 0x000), /* page addressing mode */
+
+ U8X8_C(0x0a1), /* segment remap a0/a1, 0.71 OLED */
+ U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse, 0.71 OLED */
+ // Flipmode
+ // U8X8_C(0x0a0), /* segment remap a0/a1*/
+ // U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
+
+ U8X8_CA(0x0da, 0x012), /* com pin HW config, sequential com pin config (bit 4), disable left/right remap (bit 5), 0.71 OLED */
+ U8X8_CA(0x081, 0x07f), /* [2] set contrast control, 0.71 OLED datasheet: 0x7f */
+ U8X8_CA(0x0d9, 0x022), /* [2] pre-charge period 0x022/f1, 0.71 OLED datasheet: 0x22 */
+ U8X8_CA(0x0db, 0x040), /* vcomh deselect level, 0.71 OLED datasheet: 0x40 */
+
+ // U8X8_C(0x02e), /* Deactivate scroll */
+ U8X8_C(0x0a4), /* output ram to display */
+ U8X8_C(0x0a6), /* none inverted normal display mode */
+
+ U8X8_END_TRANSFER(), /* disable chip */
+ U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_ssd1306_48x64_powersave0_seq[] =
+{
+U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+U8X8_C(0x0af), /* display on */
+U8X8_END_TRANSFER(), /* disable chip */
+U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_ssd1306_48x64_powersave1_seq[] =
+{
+U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+U8X8_C(0x0ae), /* display off */
+U8X8_END_TRANSFER(), /* disable chip */
+U8X8_END() /* end of sequence */
+};
+
+static const uint8_t u8x8_d_ssd1306_48x64_flip0_seq[] =
+{
+U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+U8X8_C(0x0a1), /* 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_ssd1306_48x64_flip1_seq[] =
+{
+U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
+U8X8_C(0x0a0), /* segment remap a0/a1*/
+U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
+U8X8_END_TRANSFER(), /* disable chip */
+U8X8_END() /* end of sequence */
+};
+
+static uint8_t u8x8_d_ssd1306_48x64_generic(u8x8_t *u8x8, uint8_t msg,
+ uint8_t arg_int, void *arg_ptr)
+{
+ uint8_t x, c;
+ uint8_t *ptr;
+ switch (msg)
+ {
+ /* handled by the calling function
+ case U8X8_MSG_DISPLAY_SETUP_MEMORY:
+ u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_48x64_display_info);
+ break;
+ case U8X8_MSG_DISPLAY_INIT:
+ u8x8_d_helper_display_init(u8x8);
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_winstar_init_seq);
+ break;
+ */
+ case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
+ if (arg_int == 0)
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_powersave0_seq);
+ else
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_powersave1_seq);
+ break;
+ case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
+ if (arg_int == 0)
+ {
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_flip0_seq);
+ u8x8->x_offset = u8x8->display_info->default_x_offset;
+ }
+ else
+ {
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_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); /* ssd1306 has range from 0 to 255 */
+ 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));
+
+ do
+ {
+ c = ((u8x8_tile_t *) arg_ptr)->cnt;
+ ptr = ((u8x8_tile_t *) arg_ptr)->tile_ptr;
+ u8x8_cad_SendData(u8x8, c * 8, 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;
+}
+
+static const u8x8_display_info_t u8x8_ssd1306_48x64_display_info =
+{
+/* chip_enable_level = */0,
+/* chip_disable_level = */1,
+
+/* post_chip_enable_wait_ns = */20,
+/* pre_chip_disable_wait_ns = */10,
+/* reset_pulse_width_ms = */100, /* SSD1306: 3 us */
+/* post_reset_wait_ms = */100, /* far east OLEDs need much longer setup time */
+/* sda_setup_time_ns = */50, /* SSD1306: 15ns, but cycle time is 100ns, so use 100/2 */
+/* sck_pulse_width_ns = */50, /* SSD1306: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+/* sck_clock_hz = */8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns, increased to 8MHz (issue 215) */
+/* spi_mode = */0, /* active high, rising edge */
+/* i2c_bus_clock_100kHz = */4,
+/* data_setup_time_ns = */40,
+/* write_pulse_width_ns = */150, /* SSD1306: cycle time is 300ns, so use 300/2 = 150 */
+/* tile_width = */6,
+/* tile_height = */8,
+/* default_x_offset = */40,
+/* flipmode_x_offset = */40,
+/* pixel_width = */48,
+/* pixel_height = */64 };
+
+/* Winstar 0.71" OLED */
+uint8_t u8x8_d_ssd1306_48x64_winstar(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int,
+ void *arg_ptr)
+{
+ if (msg == U8X8_MSG_DISPLAY_SETUP_MEMORY)
+ {
+ u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_48x64_display_info);
+ return 1;
+ }
+ else if (msg == U8X8_MSG_DISPLAY_INIT)
+ {
+ u8x8_d_helper_display_init(u8x8);
+ u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_48x64_winstar_init_seq);
+ return 1;
+ }
+ return u8x8_d_ssd1306_48x64_generic(u8x8, msg, arg_int, arg_ptr);
+}
+