| 1 | /* |
| 2 | |
| 3 | u8x8_d_gp1287ai.c |
| 4 | |
| 5 | https://github.com/olikraus/u8g2/issues/1907 |
| 6 | https://github.com/olikraus/u8g2/pull/1892 |
| 7 | |
| 8 | Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) |
| 9 | |
| 10 | Copyright (c) 2022, olikraus@gmail.com |
| 11 | All rights reserved. |
| 12 | |
| 13 | Redistribution and use in source and binary forms, with or without modification, |
| 14 | are permitted provided that the following conditions are met: |
| 15 | |
| 16 | * Redistributions of source code must retain the above copyright notice, this list |
| 17 | of conditions and the following disclaimer. |
| 18 | |
| 19 | * Redistributions in binary form must reproduce the above copyright notice, this |
| 20 | list of conditions and the following disclaimer in the documentation and/or other |
| 21 | materials provided with the distribution. |
| 22 | |
| 23 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| 24 | CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 25 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 26 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 27 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| 28 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 29 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 30 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 31 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 32 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 33 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 34 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 35 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 36 | |
| 37 | */ |
| 38 | |
| 39 | #include "u8x8.h" |
| 40 | |
| 41 | #define SWAP8(a) ((((a)&0x80) >> 7) | (((a)&0x40) >> 5) | (((a)&0x20) >> 3) | (((a)&0x10) >> 1) | (((a)&0x08) << 1) | (((a)&0x04) << 3) | (((a)&0x02) << 5) | (((a)&0x01) << 7)) |
| 42 | |
| 43 | /* ========== GP1287AI ========== */ |
| 44 | static const u8x8_display_info_t u8x8_gp1287ai_display_info = { |
| 45 | /* chip_enable_level = */ 0, |
| 46 | /* chip_disable_level = */ 1, |
| 47 | |
| 48 | /* post_chip_enable_wait_ns = */ 240, /* tCS-CLK */ |
| 49 | /* pre_chip_disable_wait_ns = */ 120, /* tCLK-CS */ |
| 50 | /* reset_pulse_width_ms = */ 1, /* Trw */ |
| 51 | /* post_reset_wait_ms = */ 1, /* Trth */ |
| 52 | /* sda_setup_time_ns = */ 60, /* tsu */ |
| 53 | /* sck_pulse_width_ns = */ 120, /* tcyc/2 */ |
| 54 | /* sck_clock_hz = */ 4000000UL, /* MAX 4.16 MHz */ |
| 55 | /* spi_mode = */ 3, /* active low, falling edge, MSBFIRST */ |
| 56 | /* i2c_bus_clock_100kHz = */ 4, /* */ |
| 57 | /* data_setup_time_ns = */ 60, /* tsu */ |
| 58 | /* write_pulse_width_ns = */ 120, /* tcyc/2 */ |
| 59 | /* tile_width = */ 32, /* 32*8=256 memory size */ |
| 60 | /* tile_height = */ 7, /* 7*8=56 memory size */ |
| 61 | /* default_x_offset = */ 0, /* */ |
| 62 | /* flipmode_x_offset = */ 0, /* */ |
| 63 | /* pixel_width = */ 256, /* display size */ |
| 64 | /* pixel_height = */ 50 /* display size */ |
| 65 | }; |
| 66 | static const uint8_t u8x8_d_gp1287ai_init_seq[] = { |
| 67 | U8X8_START_TRANSFER(), |
| 68 | U8X8_C(SWAP8(0x0AA)), /* Software reset */ |
| 69 | U8X8_END_TRANSFER(), |
| 70 | U8X8_DLY(1), /* Wait for reset */ |
| 71 | |
| 72 | U8X8_START_TRANSFER(), |
| 73 | U8X8_CA(SWAP8(0x078), SWAP8(0x008)), /* Oscillation Setting */ |
| 74 | U8X8_END_TRANSFER(), |
| 75 | |
| 76 | U8X8_START_TRANSFER(), |
| 77 | U8X8_CAA(SWAP8(0x0CC), SWAP8(0x002), SWAP8(0x000)), /* VFD Mode Setting */ |
| 78 | U8X8_END_TRANSFER(), |
| 79 | |
| 80 | U8X8_START_TRANSFER(), |
| 81 | U8X8_CAAA(SWAP8(0x0E0), SWAP8(0x0FF), SWAP8(0x031), SWAP8(0x000)), /* Display Area Setting */ |
| 82 | U8X8_A4(SWAP8(0x020), SWAP8(0x000), SWAP8(0x000), SWAP8(0x080)), /* Display Area Setting */ |
| 83 | U8X8_END_TRANSFER(), |
| 84 | |
| 85 | U8X8_START_TRANSFER(), |
| 86 | U8X8_CAAAA(SWAP8(0x0B1), SWAP8(0x020), SWAP8(0x03F), SWAP8(0x000), SWAP8(0x001)), /* Internal Speed Setting */ |
| 87 | U8X8_END_TRANSFER(), |
| 88 | |
| 89 | U8X8_START_TRANSFER(), |
| 90 | U8X8_CAA(SWAP8(0x0A0), SWAP8(0x000), SWAP8(0x028)), /* Dimming level Setting (1024 level, 0x3FF max) */ |
| 91 | U8X8_END_TRANSFER(), |
| 92 | |
| 93 | U8X8_START_TRANSFER(), |
| 94 | U8X8_C(SWAP8(0x055)), /* Memory Map Clear */ |
| 95 | U8X8_END_TRANSFER(), |
| 96 | U8X8_DLY(15), /* Waiting for memory clear */ |
| 97 | |
| 98 | U8X8_START_TRANSFER(), |
| 99 | U8X8_CAA(SWAP8(0x0C0), SWAP8(0x000), SWAP8(0x004)), /* DW1 position setting */ |
| 100 | U8X8_END_TRANSFER(), |
| 101 | |
| 102 | U8X8_START_TRANSFER(), |
| 103 | U8X8_CAA(SWAP8(0x0D0), SWAP8(0x000), SWAP8(0x03C)), /* DW2 position setting */ |
| 104 | U8X8_END_TRANSFER(), |
| 105 | |
| 106 | U8X8_START_TRANSFER(), |
| 107 | U8X8_CA(SWAP8(0x090), SWAP8(0x000)), /* Internal Command */ |
| 108 | U8X8_END_TRANSFER(), |
| 109 | |
| 110 | U8X8_START_TRANSFER(), |
| 111 | U8X8_CA(SWAP8(0x008), SWAP8(0x000)), /* T1 INT Setting */ |
| 112 | U8X8_END_TRANSFER(), |
| 113 | |
| 114 | U8X8_START_TRANSFER(), |
| 115 | U8X8_CA(SWAP8(0x080), SWAP8(0x000)), /* Display Mode Setting */ |
| 116 | U8X8_END_TRANSFER(), |
| 117 | |
| 118 | U8X8_START_TRANSFER(), |
| 119 | U8X8_C(SWAP8(0x061)), /* Standby Mode */ |
| 120 | U8X8_END_TRANSFER(), |
| 121 | |
| 122 | U8X8_END() /* end of sequence */ |
| 123 | }; |
| 124 | static const uint8_t u8x8_d_gp1287ai_standby_seq[] = { |
| 125 | U8X8_START_TRANSFER(), |
| 126 | U8X8_C(SWAP8(0x061)), /* Standby */ |
| 127 | U8X8_END_TRANSFER(), |
| 128 | |
| 129 | U8X8_END() /* end of sequence */ |
| 130 | }; |
| 131 | static const uint8_t u8x8_d_gp1287ai_wakeup_seq[] = { |
| 132 | U8X8_START_TRANSFER(), |
| 133 | U8X8_C(SWAP8(0x06D)), /* Wake up */ |
| 134 | U8X8_END_TRANSFER(), |
| 135 | U8X8_DLY(1), /* Wait for OSC stabilize */ |
| 136 | |
| 137 | U8X8_START_TRANSFER(), |
| 138 | U8X8_CA(SWAP8(0x080), SWAP8(0x000)), /* After entering standby mode, the SC bit will be automatically cleared */ |
| 139 | U8X8_END_TRANSFER(), |
| 140 | |
| 141 | U8X8_END() /* end of sequence */ |
| 142 | }; |
| 143 | uint8_t u8x8_d_gp1287ai_common(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
| 144 | { |
| 145 | uint8_t *ptr; |
| 146 | uint8_t x, y; |
| 147 | uint16_t tx_cnt; |
| 148 | uint8_t swapped_byte; |
| 149 | switch (msg) |
| 150 | { |
| 151 | case U8X8_MSG_DISPLAY_SET_POWER_SAVE: |
| 152 | if (arg_int == 0) |
| 153 | u8x8_cad_SendSequence(u8x8, u8x8_d_gp1287ai_wakeup_seq); |
| 154 | else |
| 155 | u8x8_cad_SendSequence(u8x8, u8x8_d_gp1287ai_standby_seq); |
| 156 | break; |
| 157 | #ifdef U8X8_WITH_SET_CONTRAST |
| 158 | case U8X8_MSG_DISPLAY_SET_CONTRAST: |
| 159 | u8x8_cad_StartTransfer(u8x8); |
| 160 | u8x8_cad_SendCmd(u8x8, SWAP8(0x0A0)); |
| 161 | u8x8_cad_SendArg(u8x8, SWAP8((arg_int * 4) >> 8)); /* Dimming level */ |
| 162 | u8x8_cad_SendArg(u8x8, SWAP8((arg_int * 4) & 0xFF)); /* Dimming level */ |
| 163 | u8x8_cad_EndTransfer(u8x8); |
| 164 | break; |
| 165 | #endif |
| 166 | case U8X8_MSG_DISPLAY_DRAW_TILE: |
| 167 | x = ((u8x8_tile_t *)arg_ptr)->x_pos * 8; |
| 168 | y = ((u8x8_tile_t *)arg_ptr)->y_pos * 8 + 4; |
| 169 | |
| 170 | u8x8_cad_StartTransfer(u8x8); |
| 171 | |
| 172 | u8x8_cad_SendCmd(u8x8, SWAP8(0x0F0)); |
| 173 | u8x8_cad_SendArg(u8x8, SWAP8(x)); |
| 174 | u8x8_cad_SendArg(u8x8, SWAP8(y)); |
| 175 | u8x8_cad_SendArg(u8x8, SWAP8(0x007)); /* return every 8 pixels */ |
| 176 | do |
| 177 | { |
| 178 | ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; |
| 179 | tx_cnt = ((u8x8_tile_t *)arg_ptr)->cnt * 8; |
| 180 | while (tx_cnt > 0) |
| 181 | { |
| 182 | swapped_byte = SWAP8(*ptr); |
| 183 | u8x8_cad_SendData(u8x8, 1, &swapped_byte); |
| 184 | ptr += 1; |
| 185 | tx_cnt -= 1; |
| 186 | } |
| 187 | arg_int--; |
| 188 | } while (arg_int > 0); |
| 189 | |
| 190 | u8x8_cad_EndTransfer(u8x8); |
| 191 | break; |
| 192 | default: |
| 193 | return 0; |
| 194 | } |
| 195 | return 1; |
| 196 | } |
| 197 | uint8_t u8x8_d_gp1287ai_256x50(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
| 198 | { |
| 199 | switch (msg) |
| 200 | { |
| 201 | case U8X8_MSG_DISPLAY_SETUP_MEMORY: |
| 202 | u8x8_d_helper_display_setup_memory(u8x8, &u8x8_gp1287ai_display_info); |
| 203 | break; |
| 204 | case U8X8_MSG_DISPLAY_INIT: |
| 205 | u8x8_d_helper_display_init(u8x8); |
| 206 | u8x8_cad_SendSequence(u8x8, u8x8_d_gp1287ai_init_seq); |
| 207 | break; |
| 208 | default: |
| 209 | return u8x8_d_gp1287ai_common(u8x8, msg, arg_int, arg_ptr); |
| 210 | } |
| 211 | return 1; |
| 212 | } |