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comparison: components/u8g2/csrc/u8x8_d_uc1638.c

components/u8g2/csrc/u8x8_d_uc1638.c

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1 /*
2
3 u8x8_d_uc1638.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
36 */
37 #include "u8x8.h"
38
39
40
41
42
43 static const uint8_t u8x8_d_uc1638_powersave0_seq[] = {
44 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
45 U8X8_CA(0x0c9, 0x0ad), /* display on */ /* UC1638 B/W mode */
46 U8X8_END_TRANSFER(), /* disable chip */
47 U8X8_END() /* end of sequence */
48 };
49
50 static const uint8_t u8x8_d_uc1638_powersave1_seq[] = {
51 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
52 U8X8_CA(0x0c9, 0x0ac), /* display off */ /* UC1638 */
53 U8X8_END_TRANSFER(), /* disable chip */
54 U8X8_END() /* end of sequence */
55 };
56
57 static const uint8_t u8x8_d_uc1638_flip0_seq[] = {
58 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
59 U8X8_C(0x0c4), /* LCD Mapping */ /* UC1638*/
60 U8X8_END_TRANSFER(), /* disable chip */
61 U8X8_END() /* end of sequence */
62 };
63
64 static const uint8_t u8x8_d_uc1638_flip1_seq[] = {
65 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
66 U8X8_C(0x0c2), /* LCD Mapping */ /* UC1638*/
67 U8X8_END_TRANSFER(), /* disable chip */
68 U8X8_END() /* end of sequence */
69 };
70
71
72 uint8_t u8x8_d_uc1638_common(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
73 {
74 uint8_t x, y, c;
75 uint8_t *ptr;
76 switch(msg)
77 {
78 case U8X8_MSG_DISPLAY_DRAW_TILE:
79 u8x8_cad_StartTransfer(u8x8);
80
81 x = ((u8x8_tile_t *)arg_ptr)->x_pos;
82 x *= 8;
83
84 u8x8_cad_SendCmd(u8x8, 0x004); /* UC1638 */
85 u8x8_cad_SendArg(u8x8, x);
86
87 y = ((u8x8_tile_t *)arg_ptr)->y_pos;
88 y += u8x8->x_offset;
89 y *= 2; /* for B/W mode, use only every second page */
90
91 u8x8_cad_SendCmd(u8x8, 0x060 | (y&15)); /* UC1638 */
92 u8x8_cad_SendCmd(u8x8, 0x070 | (y>>4)); /* UC1638 */
93
94
95 u8x8_cad_SendCmd(u8x8, 0x001); /* UC1638 */
96 c = ((u8x8_tile_t *)arg_ptr)->cnt;
97 c *= 8;
98 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
99 do
100 {
101 u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
102 arg_int--;
103 } while( arg_int > 0 );
104
105 u8x8_cad_EndTransfer(u8x8);
106 break;
107 /* handled in the calling procedure
108 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
109 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_uc1638_128x64_display_info);
110 break;
111 case U8X8_MSG_DISPLAY_INIT:
112 u8x8_d_helper_display_init(u8x8);
113 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_dogs102_init_seq);
114 break;
115 */
116 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
117 if ( arg_int == 0 )
118 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1638_powersave0_seq);
119 else
120 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1638_powersave1_seq);
121 break;
122 case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
123 if ( arg_int == 0 )
124 {
125 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1638_flip0_seq);
126 u8x8->x_offset = u8x8->display_info->default_x_offset;
127 }
128 else
129 {
130 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1638_flip1_seq);
131 u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
132 }
133 break;
134 #ifdef U8X8_WITH_SET_CONTRAST
135 case U8X8_MSG_DISPLAY_SET_CONTRAST:
136 u8x8_cad_StartTransfer(u8x8);
137 u8x8_cad_SendCmd(u8x8, 0x081 );
138 u8x8_cad_SendArg(u8x8, arg_int ); /* uc1638 has range from 0 to 255 */
139 u8x8_cad_EndTransfer(u8x8);
140 break;
141 #endif
142 default:
143 return 0;
144 }
145 return 1;
146 }
147
148
149 /*================================================*/
150 /* uc1638 160x128 */
151
152 /* values taken from uc1608 */
153 static const u8x8_display_info_t u8x8_uc1638_160x128_display_info =
154 {
155 /* chip_enable_level = */ 1, /* uc1638 has high active CS */
156 /* chip_disable_level = */ 0,
157
158 /* post_chip_enable_wait_ns = */ 10, /* */
159 /* pre_chip_disable_wait_ns = */ 20, /* */
160 /* reset_pulse_width_ms = */ 5, /* */
161 /* post_reset_wait_ms = */ 150,
162 /* sda_setup_time_ns = */ 30, /* */
163 /* sck_pulse_width_ns = */ 65, /* */
164 /* sck_clock_hz = */ 1000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
165 /* spi_mode = */ 3, /* active high, rising edge */
166 /* i2c_bus_clock_100kHz = */ 4,
167 /* data_setup_time_ns = */ 30, /* */
168 /* write_pulse_width_ns = */ 35, /* */
169 /* tile_width = */ 20, /* width of 20*8=160 pixel */
170 /* tile_hight = */ 16,
171 /* default_x_offset = */ 0, /* */
172 /* flipmode_x_offset = */ 0, /* */
173 /* pixel_width = */ 160,
174 /* pixel_height = */ 128
175 };
176
177 static const uint8_t u8x8_d_uc1638_160x128_init_seq[] = {
178
179 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
180
181 U8X8_CA(0x0e1, 0x0e2), /* software reset */ /* UC1638*/
182 U8X8_DLY(5), /* 5 ms */
183
184 U8X8_C(0x024), /* set temp comp*/
185 U8X8_C(0x0c0), /* mirror y and mirror x */ /* WAS: c2 */
186 U8X8_C(0x0a2), /* line rate */
187 U8X8_C(0x0d6), /* gray scale 2 */
188 U8X8_C(0x0eb), /* set bias*/
189 U8X8_C(0x095), /* set 1 bit per pixel, pattern 0*/
190 U8X8_C(0x089), /* set auto increment, low bits are AC2 AC1 AC0 */ /* WAS 89 */
191
192
193 U8X8_CA(0x081, 0x0a0), /* set contrast */ /* UC1638*/
194
195
196 U8X8_END_TRANSFER(), /* disable chip */
197 U8X8_END() /* end of sequence */
198 };
199
200 uint8_t u8x8_d_uc1638_160x128(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
201 {
202 /* call common procedure first and handle messages there */
203 if ( u8x8_d_uc1638_common(u8x8, msg, arg_int, arg_ptr) == 0 )
204 {
205 /* msg not handled, then try here */
206 switch(msg)
207 {
208 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
209 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_uc1638_160x128_display_info);
210 break;
211 case U8X8_MSG_DISPLAY_INIT:
212 u8x8_d_helper_display_init(u8x8);
213 u8x8_cad_SendSequence(u8x8, u8x8_d_uc1638_160x128_init_seq);
214 break;
215 default:
216 return 0; /* msg unknown */
217 }
218 }
219 return 1;
220 }
221
222
223 /*================================================*/

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