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comparison: components/u8g2/csrc/u8x8_d_ist3020.c

components/u8g2/csrc/u8x8_d_ist3020.c

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1 /*
2
3 u8x8_d_ist3020.c
4
5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
6
7 Copyright (c) 2017, 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 */
36 #include "u8x8.h"
37
38
39
40
41 static const uint8_t u8x8_d_ist3020_erc19264_powersave0_seq[] = {
42 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
43 U8X8_C(0x0a4), /* all pixel off, issue 142 */
44 U8X8_C(0x0af), /* display on */
45 U8X8_END_TRANSFER(), /* disable chip */
46 U8X8_END() /* end of sequence */
47 };
48
49 static const uint8_t u8x8_d_ist3020_erc19264_powersave1_seq[] = {
50 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
51 U8X8_C(0x0ae), /* display off */
52 U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
53 U8X8_END_TRANSFER(), /* disable chip */
54 U8X8_END() /* end of sequence */
55 };
56
57 static const uint8_t u8x8_d_ist3020_erc19264_flip0_seq[] = {
58 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
59 U8X8_C(0x0a0), /* segment remap a0/a1*/
60 U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */
61 U8X8_END_TRANSFER(), /* disable chip */
62 U8X8_END() /* end of sequence */
63 };
64
65 static const uint8_t u8x8_d_ist3020_erc19264_flip1_seq[] = {
66 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
67 U8X8_C(0x0a1), /* segment remap a0/a1*/
68 U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
69 U8X8_END_TRANSFER(), /* disable chip */
70 U8X8_END() /* end of sequence */
71 };
72
73
74 static const u8x8_display_info_t u8x8_ist3020_erc19264_display_info =
75 {
76 /* chip_enable_level = */ 0,
77 /* chip_disable_level = */ 1,
78
79 /* post_chip_enable_wait_ns = */ 150, /* IST3020 datasheet, page 56 */
80 /* pre_chip_disable_wait_ns = */ 150, /* IST3020 datasheet, page 56 */
81 /* reset_pulse_width_ms = */ 1,
82 /* post_reset_wait_ms = */ 1,
83 /* sda_setup_time_ns = */ 100, /* IST3020 datasheet, page 56 */
84 /* sck_pulse_width_ns = */ 100, /* IST3020 datasheet, page 56 */
85 /* sck_clock_hz = */ 4000000UL, /* */
86 /* spi_mode = */ 0, /* active high, rising edge */
87 /* i2c_bus_clock_100kHz = */ 4,
88 /* data_setup_time_ns = */ 40, /* IST3020 datasheet, page 54 */
89 /* write_pulse_width_ns = */ 60, /* IST3020 datasheet, page 54 */
90 /* tile_width = */ 24, /* width of 24*8=192 pixel */
91 /* tile_hight = */ 8,
92 /* default_x_offset = */ 0,
93 /* flipmode_x_offset = */ 64,
94 /* pixel_width = */ 192,
95 /* pixel_height = */ 64
96 };
97
98 static const uint8_t u8x8_d_ist3020_erc19264_init_seq[] = {
99
100 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
101
102 U8X8_C(0x0e2), /* soft reset */
103 U8X8_C(0x0ab), /* build in osc on, used in ER code, but not mentioned in data sheet */
104 U8X8_C(0x0ae), /* display off */
105
106 U8X8_C(0x040), /* set display start line to 0 */
107
108 U8X8_C(0x0a0), /* ADC set to reverse */
109 U8X8_C(0x0c8), /* common output mode */
110 // Flipmode
111 //U8X8_C(0x0a0), /* ADC set to reverse */
112 //U8X8_C(0x0c8), /* common output mode */
113
114 U8X8_C(0x0a6), /* display normal, bit val 0: LCD pixel off. */
115 U8X8_C(0x0a3), /* FIX: LCD bias 1/7, old value was 1/9 (0x0a2) */
116
117 U8X8_C(0x028|4), /* all power control circuits on */
118 U8X8_DLY(50),
119 U8X8_C(0x028|6), /* all power control circuits on */
120 U8X8_DLY(50),
121 U8X8_C(0x028|7), /* all power control circuits on */
122 U8X8_DLY(50),
123
124 U8X8_C(0x020), /* v0 voltage resistor ratio */
125 U8X8_CA(0x081, 0x019), /* set contrast, contrast value (from ER code: 45) */
126
127 U8X8_C(0x0ae), /* display off */
128 U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
129
130 U8X8_END_TRANSFER(), /* disable chip */
131 U8X8_END() /* end of sequence */
132 };
133
134 uint8_t u8x8_d_ist3020_erc19264(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
135 {
136 uint8_t x, c;
137 uint8_t *ptr;
138 switch(msg)
139 {
140 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
141 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ist3020_erc19264_display_info);
142 break;
143 case U8X8_MSG_DISPLAY_INIT:
144 u8x8_d_helper_display_init(u8x8);
145 u8x8_cad_SendSequence(u8x8, u8x8_d_ist3020_erc19264_init_seq);
146 break;
147 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
148 if ( arg_int == 0 )
149 u8x8_cad_SendSequence(u8x8, u8x8_d_ist3020_erc19264_powersave0_seq);
150 else
151 u8x8_cad_SendSequence(u8x8, u8x8_d_ist3020_erc19264_powersave1_seq);
152 break;
153 case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
154 if ( arg_int == 0 )
155 {
156 u8x8_cad_SendSequence(u8x8, u8x8_d_ist3020_erc19264_flip0_seq);
157 u8x8->x_offset = u8x8->display_info->default_x_offset;
158 }
159 else
160 {
161 u8x8_cad_SendSequence(u8x8, u8x8_d_ist3020_erc19264_flip1_seq);
162 u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
163 }
164 break;
165 #ifdef U8X8_WITH_SET_CONTRAST
166 case U8X8_MSG_DISPLAY_SET_CONTRAST:
167 u8x8_cad_StartTransfer(u8x8);
168 u8x8_cad_SendCmd(u8x8, 0x081 );
169 u8x8_cad_SendArg(u8x8, arg_int >> 2 ); /* st7567 has range from 0 to 63 */
170 u8x8_cad_EndTransfer(u8x8);
171 break;
172 #endif
173 case U8X8_MSG_DISPLAY_DRAW_TILE:
174 u8x8_cad_StartTransfer(u8x8);
175
176 x = ((u8x8_tile_t *)arg_ptr)->x_pos;
177 x *= 8;
178 x += u8x8->x_offset;
179 u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) );
180 u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
181 u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
182
183 c = ((u8x8_tile_t *)arg_ptr)->cnt;
184 c *= 8;
185 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
186 do
187 {
188 u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
189 arg_int--;
190 } while( arg_int > 0 );
191
192 u8x8_cad_EndTransfer(u8x8);
193 break;
194 default:
195 return 0;
196 }
197 return 1;
198 }
199
200

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