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comparison: components/u8g2/csrc/u8x8_d_sh1108.c

components/u8g2/csrc/u8x8_d_sh1108.c

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1 /*
2
3 u8x8_d_sh1108.c
4
5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
6
7 Copyright (c) 2018, 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
37 #include "u8x8.h"
38
39 /*
40 code copyied from sh1107
41 SH1108: 160x160 controller from Sino Wealth
42 */
43
44
45
46 static const uint8_t u8x8_d_sh1108_noname_powersave0_seq[] = {
47 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
48 U8X8_C(0x0af), /* display on */
49 U8X8_END_TRANSFER(), /* disable chip */
50 U8X8_END() /* end of sequence */
51 };
52
53 static const uint8_t u8x8_d_sh1108_noname_powersave1_seq[] = {
54 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
55 U8X8_C(0x0ae), /* display off */
56 U8X8_END_TRANSFER(), /* disable chip */
57 U8X8_END() /* end of sequence */
58 };
59
60 static const uint8_t u8x8_d_sh1108_160x160_noname_powersave0_seq[] = {
61 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
62 U8X8_C(0x0a0), /* segment remap a0/a1*/
63 U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
64 U8X8_END_TRANSFER(), /* disable chip */
65 U8X8_END() /* end of sequence */
66 };
67
68 static const uint8_t u8x8_d_sh1108_160x160_noname_powersave1_seq[] = {
69 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
70 U8X8_C(0x0a1), /* segment remap a0/a1*/
71 U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */
72 U8X8_END_TRANSFER(), /* disable chip */
73 U8X8_END() /* end of sequence */
74 };
75
76
77 static uint8_t u8x8_d_sh1108_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
78 {
79 uint8_t x, c;
80 uint8_t *ptr;
81 switch(msg)
82 {
83 /* handled by the calling function
84 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
85 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_sh1108_64x128_noname_display_info);
86 break;
87 */
88 /* handled by the calling function
89 case U8X8_MSG_DISPLAY_INIT:
90 u8x8_d_helper_display_init(u8x8);
91 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_64x128_noname_init_seq);
92 break;
93 */
94 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
95 if ( arg_int == 0 )
96 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_noname_powersave0_seq);
97 else
98 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_noname_powersave1_seq);
99 break;
100 case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
101 if ( arg_int == 0 )
102 {
103 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_powersave0_seq);
104 u8x8->x_offset = u8x8->display_info->default_x_offset;
105 }
106 else
107 {
108 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_powersave1_seq);
109 u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
110 }
111 break;
112 #ifdef U8X8_WITH_SET_CONTRAST
113 case U8X8_MSG_DISPLAY_SET_CONTRAST:
114 u8x8_cad_StartTransfer(u8x8);
115 u8x8_cad_SendCmd(u8x8, 0x081 );
116 u8x8_cad_SendArg(u8x8, arg_int ); /* sh1108 has range from 0 to 255 */
117 u8x8_cad_EndTransfer(u8x8);
118 break;
119 #endif
120 case U8X8_MSG_DISPLAY_DRAW_TILE:
121 u8x8_cad_StartTransfer(u8x8);
122 x = ((u8x8_tile_t *)arg_ptr)->x_pos;
123 x *= 8;
124 x += u8x8->x_offset;
125
126 //u8x8_cad_SendCmd(u8x8, 0x040 ); /* set line offset to 0 */
127
128 // set column address
129 u8x8_cad_SendCmd(u8x8, 0x010 | (x >> 4));
130 u8x8_cad_SendCmd(u8x8, 0x000 | ((x & 15)));
131
132 // set page address
133 u8x8_cad_SendCmd(u8x8, 0x0b0 ); // page cmd is a two byte command
134 u8x8_cad_SendArg(u8x8, (((u8x8_tile_t *)arg_ptr)->y_pos));
135
136 do
137 {
138 c = ((u8x8_tile_t *)arg_ptr)->cnt;
139 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
140 u8x8_cad_SendData(u8x8, c*8, ptr); /* note: SendData can not handle more than 255 bytes */
141 arg_int--;
142 } while( arg_int > 0 );
143
144 u8x8_cad_EndTransfer(u8x8);
145 break;
146 default:
147 return 0;
148 }
149 return 1;
150 }
151
152 /*==================================================*/
153
154 /* issue #619, 160x160 OLED */
155 static const uint8_t u8x8_d_sh1108_160x160_noname_init_seq[] = {
156
157 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
158
159 U8X8_C(0x0ae), /* display off */
160 U8X8_CA(0x0d5, 0x060), /* clock divide ratio and oscillator frequency */
161 U8X8_CA(0x0a9, 0x003), /* set display resolution, 0=64x160, 1=96x160, 2=128x160, 3=160x160 */
162 U8X8_C(0x020), /* use page addressing mode */
163 U8X8_CA(0x081, 0x01f), /* set contrast control */
164 U8X8_CA(0x0ad, 0x80), /* DC/DC control 80=Use external Vpp, 89=Use internal DC/DC*/
165 U8X8_C(0x030), /* set discharge VSL level, 0x030..0x03f */
166 U8X8_CA(0x0d9, 0x028), /* pre-charge period */
167 U8X8_CA(0x0db, 0x035), /* vcomh deselect level */
168 U8X8_CA(0x0dc, 0x035), /* VSEGM Deselect Level */
169
170 U8X8_C(0x0a0), /* segment remap a0/a1*/
171 U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
172
173 U8X8_C(0x0a4), /* output ram to display */
174 U8X8_C(0x0a6), /* none inverted normal display mode */
175
176 U8X8_END_TRANSFER(), /* disable chip */
177 U8X8_END() /* end of sequence */
178 };
179
180 static const u8x8_display_info_t u8x8_sh1108_160x160_noname_display_info =
181 {
182 /* chip_enable_level = */ 0,
183 /* chip_disable_level = */ 1,
184
185 /* post_chip_enable_wait_ns = */ 60,
186 /* pre_chip_disable_wait_ns = */ 120,
187 /* reset_pulse_width_ms = */ 100, /* sh1108: 3 us */
188 /* post_reset_wait_ms = */ 100, /* sometimes OLEDs need much longer setup time */
189 /* sda_setup_time_ns = */ 100, /* sh1108: 100ns */
190 /* sck_pulse_width_ns = */ 100, /* sh1108: 100ns */
191 /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
192 /* spi_mode = */ 0, /* active high, rising edge */
193 /* i2c_bus_clock_100kHz = */ 4,
194 /* data_setup_time_ns = */ 40,
195 /* write_pulse_width_ns = */ 150, /* sh1108: cycle time is 300ns, so use 300/2 = 150 */
196 /* tile_width = */ 20,
197 /* tile_height = */ 20,
198 /* default_x_offset = */ 0,
199 /* flipmode_x_offset = */ 0,
200 /* pixel_width = */ 160,
201 /* pixel_height = */ 160
202 };
203
204 uint8_t u8x8_d_sh1108_160x160(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
205 {
206
207 if ( u8x8_d_sh1108_generic(u8x8, msg, arg_int, arg_ptr) != 0 )
208 return 1;
209
210 switch(msg)
211 {
212 case U8X8_MSG_DISPLAY_INIT:
213 u8x8_d_helper_display_init(u8x8);
214 u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_init_seq);
215 break;
216 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
217 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_sh1108_160x160_noname_display_info);
218 break;
219 default:
220 return 0;
221 }
222 return 1;
223 }
224
225 /*==================================================*/

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