comparison: components/u8g2/csrc/u8x8_d_sh1122.c
components/u8g2/csrc/u8x8_d_sh1122.c
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| 1 /* | |
| 2 | |
| 3 u8x8_d_sh1122.c | |
| 4 | |
| 5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) | |
| 6 | |
| 7 Copyright (c) 2016, olikraus@gmail.com | |
| 8 All rights reserved. | |
| 9 | |
| 10 Redistribution and use in source and binary forms, with or without modification, | |
| 11 are permitted provided that the following conditions are met: | |
| 12 | |
| 13 * Redistributions of source code must retain the above copyright notice, this list | |
| 14 of conditions and the following disclaimer. | |
| 15 | |
| 16 * Redistributions in binary form must reproduce the above copyright notice, this | |
| 17 list of conditions and the following disclaimer in the documentation and/or other | |
| 18 materials provided with the distribution. | |
| 19 | |
| 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND | |
| 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR | |
| 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 33 | |
| 34 | |
| 35 Copied from sh1122 mostly because of the similar RAM architecture. | |
| 36 However: Commands are very different! | |
| 37 | |
| 38 */ | |
| 39 #include "u8x8.h" | |
| 40 | |
| 41 | |
| 42 | |
| 43 | |
| 44 static const uint8_t u8x8_d_sh1122_powersave0_seq[] = { | |
| 45 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 46 U8X8_C(0x0af), /* sh1122: display on */ | |
| 47 U8X8_END_TRANSFER(), /* disable chip */ | |
| 48 U8X8_END() /* end of sequence */ | |
| 49 }; | |
| 50 | |
| 51 static const uint8_t u8x8_d_sh1122_powersave1_seq[] = { | |
| 52 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 53 U8X8_C(0x0ae), /* sh1122: display off */ | |
| 54 U8X8_END_TRANSFER(), /* disable chip */ | |
| 55 U8X8_END() /* end of sequence */ | |
| 56 }; | |
| 57 | |
| 58 | |
| 59 | |
| 60 | |
| 61 /* | |
| 62 input: | |
| 63 one tile (8 Bytes) | |
| 64 output: | |
| 65 Tile for SH1122 (32 Bytes) | |
| 66 */ | |
| 67 | |
| 68 /* | |
| 69 static uint8_t u8x8_sh1122_to32_dest_buf[32]; | |
| 70 | |
| 71 static uint8_t *u8x8_sh1122_8to32(U8X8_UNUSED u8x8_t *u8x8, uint8_t *ptr) | |
| 72 { | |
| 73 uint8_t v; | |
| 74 uint8_t a,b; | |
| 75 uint8_t i, j; | |
| 76 uint8_t *dest; | |
| 77 | |
| 78 for( j = 0; j < 4; j++ ) | |
| 79 { | |
| 80 dest = u8x8_sh1122_to32_dest_buf; | |
| 81 dest += j; | |
| 82 a =*ptr; | |
| 83 ptr++; | |
| 84 b = *ptr; | |
| 85 ptr++; | |
| 86 for( i = 0; i < 8; i++ ) | |
| 87 { | |
| 88 v = 0; | |
| 89 if ( a&1 ) v |= 0xf0; | |
| 90 if ( b&1 ) v |= 0x0f; | |
| 91 *dest = v; | |
| 92 dest+=4; | |
| 93 a >>= 1; | |
| 94 b >>= 1; | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 return u8x8_sh1122_to32_dest_buf; | |
| 99 } | |
| 100 */ | |
| 101 | |
| 102 | |
| 103 static uint8_t u8x8_write_byte_to_16gr_device(u8x8_t *u8x8, uint8_t b) | |
| 104 { | |
| 105 static uint8_t buf[4]; | |
| 106 static uint8_t map[4] = { 0, 0x00f, 0x0f0, 0x0ff }; | |
| 107 buf [3] = map[b & 3]; | |
| 108 b>>=2; | |
| 109 buf [2] = map[b & 3]; | |
| 110 b>>=2; | |
| 111 buf [1] = map[b & 3]; | |
| 112 b>>=2; | |
| 113 buf [0] = map[b & 3]; | |
| 114 return u8x8_cad_SendData(u8x8, 4, buf); | |
| 115 } | |
| 116 | |
| 117 uint8_t u8x8_d_sh1122_common(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 118 { | |
| 119 uint8_t x; | |
| 120 uint8_t y, c, i; | |
| 121 uint8_t *ptr; | |
| 122 switch(msg) | |
| 123 { | |
| 124 /* U8X8_MSG_DISPLAY_SETUP_MEMORY is handled by the calling function */ | |
| 125 /* | |
| 126 case U8X8_MSG_DISPLAY_SETUP_MEMORY: | |
| 127 break; | |
| 128 case U8X8_MSG_DISPLAY_INIT: | |
| 129 u8x8_d_helper_display_init(u8x8); | |
| 130 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_init_seq); | |
| 131 break; | |
| 132 */ | |
| 133 case U8X8_MSG_DISPLAY_SET_POWER_SAVE: | |
| 134 if ( arg_int == 0 ) | |
| 135 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_powersave0_seq); | |
| 136 else | |
| 137 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_powersave1_seq); | |
| 138 break; | |
| 139 #ifdef U8X8_WITH_SET_CONTRAST | |
| 140 case U8X8_MSG_DISPLAY_SET_CONTRAST: | |
| 141 u8x8_cad_StartTransfer(u8x8); | |
| 142 u8x8_cad_SendCmd(u8x8, 0x081 ); | |
| 143 u8x8_cad_SendArg(u8x8, arg_int ); /* sh1122 has range from 0 to 255 */ | |
| 144 u8x8_cad_EndTransfer(u8x8); | |
| 145 break; | |
| 146 #endif | |
| 147 case U8X8_MSG_DISPLAY_DRAW_TILE: | |
| 148 u8x8_cad_StartTransfer(u8x8); | |
| 149 x = ((u8x8_tile_t *)arg_ptr)->x_pos; | |
| 150 x *= 2; // only every 4th col can be addressed | |
| 151 x += u8x8->x_offset; | |
| 152 | |
| 153 y = (((u8x8_tile_t *)arg_ptr)->y_pos); | |
| 154 y *= 8; | |
| 155 | |
| 156 | |
| 157 c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */ | |
| 158 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; /* data ptr to the tiles */ | |
| 159 for( i = 0; i < 8; i++ ) | |
| 160 { | |
| 161 u8x8_cad_SendCmd(u8x8, 0x0b0 ); /* set row address */ | |
| 162 u8x8_cad_SendArg(u8x8, y); | |
| 163 u8x8_cad_SendCmd(u8x8, x & 15 ); /* lower 4 bit*/ | |
| 164 u8x8_cad_SendCmd(u8x8, 0x010 | (x >> 4) ); /* higher 3 bit */ | |
| 165 c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */ | |
| 166 | |
| 167 while ( c > 0 ) | |
| 168 { | |
| 169 u8x8_write_byte_to_16gr_device(u8x8, *ptr); | |
| 170 c--; | |
| 171 ptr++; | |
| 172 } | |
| 173 y++; | |
| 174 } | |
| 175 | |
| 176 | |
| 177 u8x8_cad_EndTransfer(u8x8); | |
| 178 break; | |
| 179 default: | |
| 180 return 0; | |
| 181 } | |
| 182 return 1; | |
| 183 } | |
| 184 | |
| 185 /*=========================================================*/ | |
| 186 | |
| 187 static const uint8_t u8x8_d_sh1122_256x64_flip0_seq[] = { | |
| 188 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 189 U8X8_C(0x0a1), /* remap */ | |
| 190 U8X8_C(0x0c8), /* remap */ | |
| 191 U8X8_C(0x060), | |
| 192 U8X8_END_TRANSFER(), /* disable chip */ | |
| 193 U8X8_END() /* end of sequence */ | |
| 194 }; | |
| 195 | |
| 196 static const uint8_t u8x8_d_sh1122_256x64_flip1_seq[] = { | |
| 197 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 198 U8X8_C(0x0a0), /* remap */ | |
| 199 U8X8_C(0x0c0), /* remap */ | |
| 200 U8X8_C(0x040), | |
| 201 U8X8_END_TRANSFER(), /* disable chip */ | |
| 202 U8X8_END() /* end of sequence */ | |
| 203 }; | |
| 204 | |
| 205 static const u8x8_display_info_t u8x8_sh1122_256x64_display_info = | |
| 206 { | |
| 207 /* chip_enable_level = */ 0, | |
| 208 /* chip_disable_level = */ 1, | |
| 209 | |
| 210 /* post_chip_enable_wait_ns = */ 20, | |
| 211 /* pre_chip_disable_wait_ns = */ 10, | |
| 212 /* reset_pulse_width_ms = */ 10, /* sh1122: 10 us */ | |
| 213 /* post_reset_wait_ms = */ 20, /* */ | |
| 214 /* sda_setup_time_ns = */ 125, /* sh1122: cycle time is 250ns, so use 250/2 */ | |
| 215 /* sck_pulse_width_ns = */ 125, /* sh1122: cycle time is 250ns, so use 250/2 */ | |
| 216 /* sck_clock_hz = */ 40000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */ | |
| 217 /* spi_mode = */ 0, /* active high, rising edge */ | |
| 218 /* i2c_bus_clock_100kHz = */ 4, | |
| 219 /* data_setup_time_ns = */ 10, | |
| 220 /* write_pulse_width_ns = */ 150, /* sh1122: cycle time is 300ns, so use 300/2 = 150 */ | |
| 221 /* tile_width = */ 32, /* 256 pixel, so we require 32 bytes for this */ | |
| 222 /* tile_hight = */ 8, | |
| 223 /* default_x_offset = */ 0, /* this is the byte offset (there are two pixel per byte with 4 bit per pixel) */ | |
| 224 /* flipmode_x_offset = */ 0, | |
| 225 /* pixel_width = */ 256, | |
| 226 /* pixel_height = */ 64 | |
| 227 }; | |
| 228 | |
| 229 | |
| 230 static const uint8_t u8x8_d_sh1122_256x64_init_seq[] = { | |
| 231 | |
| 232 U8X8_DLY(1), | |
| 233 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 234 U8X8_DLY(1), | |
| 235 | |
| 236 U8X8_C(0xae), /* display off */ | |
| 237 U8X8_C(0x40), /* display start line */ | |
| 238 U8X8_C(0x0a0), /* remap */ | |
| 239 U8X8_C(0x0c0), /* remap */ | |
| 240 U8X8_CA(0x81, 0x80), /* set display contrast */ | |
| 241 U8X8_CA(0xa8, 0x3f), /* multiplex ratio 1/64 Duty (0x0F~0x3F) */ | |
| 242 U8X8_CA(0xad, 0x81), /* use buildin DC-DC with 0.6 * 500 kHz */ | |
| 243 | |
| 244 U8X8_CA(0xd5, 0x50), /* set display clock divide ratio (lower 4 bit)/oscillator frequency (upper 4 bit) */ | |
| 245 U8X8_CA(0xd3, 0x00), /* display offset, shift mapping ram counter */ | |
| 246 U8X8_CA(0xd9, 0x22), /* pre charge (lower 4 bit) and discharge(higher 4 bit) period */ | |
| 247 U8X8_CA(0xdb, 0x35), /* VCOM deselect level */ | |
| 248 U8X8_CA(0xdc, 0x35), /* Pre Charge output voltage */ | |
| 249 U8X8_C(0x030), /* discharge level */ | |
| 250 | |
| 251 U8X8_DLY(1), /* delay */ | |
| 252 | |
| 253 U8X8_END_TRANSFER(), /* disable chip */ | |
| 254 U8X8_END() /* end of sequence */ | |
| 255 }; | |
| 256 | |
| 257 | |
| 258 uint8_t u8x8_d_sh1122_256x64(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 259 { | |
| 260 switch(msg) | |
| 261 { | |
| 262 case U8X8_MSG_DISPLAY_SETUP_MEMORY: | |
| 263 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_sh1122_256x64_display_info); | |
| 264 break; | |
| 265 case U8X8_MSG_DISPLAY_INIT: | |
| 266 u8x8_d_helper_display_init(u8x8); | |
| 267 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_init_seq); | |
| 268 break; | |
| 269 case U8X8_MSG_DISPLAY_SET_FLIP_MODE: | |
| 270 if ( arg_int == 0 ) | |
| 271 { | |
| 272 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_flip0_seq); | |
| 273 u8x8->x_offset = u8x8->display_info->default_x_offset; | |
| 274 } | |
| 275 else | |
| 276 { | |
| 277 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_flip1_seq); | |
| 278 u8x8->x_offset = u8x8->display_info->flipmode_x_offset; | |
| 279 } | |
| 280 break; | |
| 281 | |
| 282 default: | |
| 283 return u8x8_d_sh1122_common(u8x8, msg, arg_int, arg_ptr); | |
| 284 } | |
| 285 return 1; | |
| 286 } | |
| 287 |
