diff -r 000000000000 -r 88d965579617 components/u8g2/csrc/u8x8_d_pcd8544_84x48.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/components/u8g2/csrc/u8x8_d_pcd8544_84x48.c Tue Oct 08 12:00:31 2019 +0200 @@ -0,0 +1,166 @@ +/* + + u8x8_d_pcd8544_84x48.c (so called "Nokia 5110" displays) + + 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_pcd8544_84x48_init_seq[] = { + + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + + U8X8_C(0x021), /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */ + U8X8_C(0x006), /* temp. control: b10 = 2 */ + U8X8_C(0x013), /* bias system 1:48 */ + U8X8_C(0x0c0), /* medium Vop */ + + U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + U8X8_C(0x008), /* blank */ + U8X8_C(0x024), /* power down (PD=1), horizontal increment (V=0), enter normal command set (H=0) */ + + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_pcd8544_84x48_powersave0_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + U8X8_C(0x00c), /* display on */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + +static const uint8_t u8x8_d_pcd8544_84x48_powersave1_seq[] = { + U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ + U8X8_C(0x020), /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + U8X8_C(0x008), /* blank */ + U8X8_C(0x024), /* power down (PD=1), horizontal increment (V=0), enter normal command set (H=0) */ + U8X8_END_TRANSFER(), /* disable chip */ + U8X8_END() /* end of sequence */ +}; + + + +static const u8x8_display_info_t u8x8_pcd8544_84x48_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 = */ 2, + /* post_reset_wait_ms = */ 2, + /* 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 = */ 11, /* width of 11*8=88 pixel */ + /* tile_hight = */ 6, + /* default_x_offset = */ 0, + /* flipmode_x_offset = */ 0, + /* pixel_width = */ 84, + /* pixel_height = */ 48 +}; + +uint8_t u8x8_d_pcd8544_84x48(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_pcd8544_84x48_display_info); + break; + case U8X8_MSG_DISPLAY_INIT: + u8x8_d_helper_display_init(u8x8); + u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_init_seq); + break; + case U8X8_MSG_DISPLAY_SET_POWER_SAVE: + if ( arg_int == 0 ) + u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_powersave0_seq); + else + u8x8_cad_SendSequence(u8x8, u8x8_d_pcd8544_84x48_powersave1_seq); + break; + // case U8X8_MSG_DISPLAY_SET_FLIP_MODE: + // break; NOT SUPPORTED + +#ifdef U8X8_WITH_SET_CONTRAST + case U8X8_MSG_DISPLAY_SET_CONTRAST: + u8x8_cad_StartTransfer(u8x8); + u8x8_cad_SendCmd(u8x8, 0x021 ); /* command mode, extended function set */ + u8x8_cad_SendCmd(u8x8, 0x080 | (arg_int >> 1) ); + 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, 0x020 ); /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */ + u8x8_cad_SendCmd(u8x8, 0x080 | (x) ); /* set X address */ + u8x8_cad_SendCmd(u8x8, 0x040 | (((u8x8_tile_t *)arg_ptr)->y_pos) ); /* set Y address */ + + ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; + c = ((u8x8_tile_t *)arg_ptr)->cnt; + c *= 8; + do + { + if ( c + x > 84u ) + { + if ( x >= 84u ) + break; + c = 84u; + c -= x; + } + u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */ + x += c; + arg_int--; + } while( arg_int > 0 ); + + u8x8_cad_EndTransfer(u8x8); + break; + default: + return 0; + } + return 1; +} + +