1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
/*
ChibiOS/RT - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS-LCD-Driver.
ChibiOS-LCD-Driver is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS-LCD-Driver is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef S6D1121_H
#define S6D1121_H
// I/O assignments
#define LCD_BL_GPIO GPIOB
#define LCD_BL_PIN 8
#define LCD_CS_GPIO GPIOD
#define LCD_CS_PIN 7
#define LCD_RS_GPIO GPIOD
#define LCD_RS_PIN 11
#define LCD_RST_GPIO GPIOD
#define LCD_RST_PIN 10
#define LCD_RD_GPIO GPIOD
#define LCD_RD_PIN 9
#define LCD_WR_GPIO GPIOD
#define LCD_WR_PIN 8
#define LCD_D0_GPIO GPIOD
#define LCD_D4_GPIO GPIOE
/* all interfaces use RST via GPIO */
/* TODO: option to disable RST; assumes RST is tied high */
#define LCD_RST_LOW palClearPad(LCD_RST_GPIO, LCD_RST_PIN)
#define LCD_RST_HIGH palSetPad(LCD_RST_GPIO, LCD_RST_PIN)
#define s6d1121_delay(n) halPolledDelay(MS2RTT(n));
#if defined(LCD_USE_GPIO)
#define LCD_CS_LOW palClearPad(LCD_CS_GPIO, LCD_CS_PIN)
#define LCD_CS_HIGH palSetPad(LCD_CS_GPIO, LCD_CS_PIN)
#define LCD_RS_LOW palClearPad(LCD_RS_GPIO, LCD_RS_PIN)
#define LCD_RS_HIGH palSetPad(LCD_RS_GPIO, LCD_RS_PIN)
#define LCD_RD_LOW palClearPad(LCD_RD_GPIO, LCD_RD_PIN)
#define LCD_RD_HIGH palSetPad(LCD_RD_GPIO, LCD_RD_PIN)
#define LCD_WR_LOW palClearPad(LCD_WR_GPIO, LCD_WR_PIN)
#define LCD_WR_HIGH palSetPad(LCD_WR_GPIO, LCD_WR_PIN)
#define LCD_BL_LOW palClearPad(LCD_BL_GPIO, LCD_BL_PIN)
#define LCD_BL_HIGH palSetPad(LCD_BL_GPIO, LCD_BL_PIN)
static inline void lld_lcddelay(void) { asm volatile ("nop"); asm volatile ("nop"); }
static inline void lld_lcdwrite(uint16_t db) {
LCD_D4_GPIO->BSRR.W=((~db&0xFFF0)<<16)|(db&0xFFF0);
LCD_D0_GPIO->BSRR.W=((~db&0x000F)<<16)|(db&0x000F);
LCD_WR_LOW;
lld_lcddelay();
LCD_WR_HIGH;
}
static __inline uint16_t lld_lcdReadData(void) {
uint16_t value=0;
LCD_RS_HIGH; LCD_WR_HIGH; LCD_RD_LOW;
#ifndef STM32F4XX
// change pin mode to digital input
LCD_DATA_PORT->CRH = 0x47444444;
LCD_DATA_PORT->CRL = 0x47444444;
#endif
#ifndef STM32F4XX
// change pin mode back to digital output
LCD_DATA_PORT->CRH = 0x33333333;
LCD_DATA_PORT->CRL = 0x33333333;
#endif
LCD_RD_HIGH;
return value;
}
static __inline uint16_t lld_lcdReadReg(uint16_t lcdReg) {
uint16_t lcdRAM;
LCD_CS_LOW; LCD_RS_LOW;
lld_lcdwrite(lcdReg);
LCD_RS_HIGH;
lcdRAM = lld_lcdReadData();
LCD_CS_HIGH;
return lcdRAM;
}
static void lld_lcdWriteIndex(uint16_t lcdReg) {
LCD_RS_LOW;
lld_lcdwrite(lcdReg);
LCD_RS_HIGH;
}
static void lld_lcdWriteData(uint16_t lcdData) {
lld_lcdwrite(lcdData);
}
static void lld_lcdWriteReg(uint16_t lcdReg, uint16_t lcdRegValue) {
LCD_CS_LOW;
lld_lcdWriteIndex(lcdReg);
lld_lcdWriteData(lcdRegValue);
LCD_CS_HIGH;
}
static __inline void lld_lcdWriteStreamStart(void) {
LCD_CS_LOW;
lld_lcdWriteIndex(0x0022);
}
static __inline void lld_lcdWriteStreamStop(void) {
LCD_CS_HIGH;
}
static __inline void lld_lcdWriteStream(uint16_t *buffer, uint16_t size) {
uint16_t i;
for(i = 0; i < size; i++) { lld_lcdwrite(buffer[i]); }
}
static __inline void lld_lcdReadStreamStart(void) { /* TODO */ }
static __inline void lld_lcdReadStreamStop(void) { /* TODO */ }
static __inline void lld_lcdReadStream(uint16_t *UNUSED(buffer), size_t UNUSED(size)) { /* TODO */ }
#elif defined(LCD_USE_FSMC)
#define LCD_REG (*((volatile uint16_t *) 0x60000000)) /* RS = 0 */
#define LCD_RAM (*((volatile uint16_t *) 0x60020000)) /* RS = 1 */
static __inline void lld_lcdWriteIndex(uint16_t index) { LCD_REG = index; }
static __inline void lld_lcdWriteData(uint16_t data) { LCD_RAM = data; }
static __inline void lld_lcdWriteReg(uint16_t lcdReg,uint16_t lcdRegValue) {
LCD_REG = lcdReg;
LCD_RAM = lcdRegValue;
}
static __inline uint16_t lld_lcdReadData(void) { return (LCD_RAM); }
static __inline uint16_t lld_lcdReadReg(uint16_t lcdReg) {
LCD_REG = lcdReg;
return LCD_RAM;
}
static __inline void lld_lcdWriteStreamStart(void) { LCD_REG = 0x0022; }
static __inline void lld_lcdWriteStreamStop(void) {}
static __inline void lld_lcdWriteStream(uint16_t *buffer, uint16_t size) {
uint16_t i;
for(i = 0; i < size; i++) LCD_RAM = buffer[i];
}
static __inline void lld_lcdReadStreamStart(void) { LCD_REG = 0x0022; }
static __inline void lld_lcdReadStreamStop(void) {}
static __inline void lld_lcdReadStream(uint16_t *buffer, size_t size) {
uint16_t i;
volatile uint16_t dummy;
/* throw away first value read */
dummy = LCD_RAM;
for(i = 0; i < size; i++) buffer[i] = LCD_RAM;
}
#elif defined(LCD_USE_SPI)
#error "gdispS6d1121: LCD_USE_SPI not implemented yet"
#else
#error "gdispS6d1121: No known LCD_USE_XXX has been defined"
#endif
static void lld_lcdSetCursor(coord_t x, coord_t y) {
/* R20h - 8 bit
* R21h - 9 bit
*/
switch(GDISP.Orientation) {
case portraitInv:
lld_lcdWriteReg(0x0020, (SCREEN_WIDTH-1-x) & 0x00FF);
lld_lcdWriteReg(0x0021, (SCREEN_HEIGHT-1-y) & 0x01FF);
break;
case portrait:
lld_lcdWriteReg(0x0020, x & 0x00FF);
lld_lcdWriteReg(0x0021, y & 0x01FF);
break;
case landscape:
lld_lcdWriteReg(0x0020, y & 0x00FF);
lld_lcdWriteReg(0x0021, x & 0x01FF);
break;
case landscapeInv:
lld_lcdWriteReg(0x0020, (SCREEN_WIDTH - y - 1) & 0x00FF);
lld_lcdWriteReg(0x0021, (SCREEN_HEIGHT - x - 1) & 0x01FF);
break;
}
}
static void lld_lcdSetViewPort(uint16_t x, uint16_t y, uint16_t cx, uint16_t cy) {
/* HSA / HEA are 8 bit
* VSA / VEA are 9 bit
* use masks 0x00FF and 0x01FF to enforce this
*/
switch(GDISP.Orientation) {
case portrait:
lld_lcdWriteReg(0x46, (((x+cx-1) << 8) & 0xFF00 ) | (x & 0x00FF));
lld_lcdWriteReg(0x48, y & 0x01FF);
lld_lcdWriteReg(0x47, (y+cy-1) & 0x01FF);
break;
case landscape:
lld_lcdWriteReg(0x46, (((x+cx-1) << 8) & 0xFF00) | ((y+cy) & 0x00FF));
lld_lcdWriteReg(0x48, x & 0x01FF);
lld_lcdWriteReg(0x47, (x+cx-1) & 0x01FF);
break;
case portraitInv:
lld_lcdWriteReg(0x46, (((SCREEN_WIDTH-x-1) & 0x00FF) << 8) | ((SCREEN_WIDTH - (x+cx)) & 0x00FF));
lld_lcdWriteReg(0x48, (SCREEN_HEIGHT-(y+cy)) & 0x01FF);
lld_lcdWriteReg(0x47, (SCREEN_HEIGHT-y-1) & 0x01FF);
break;
case landscapeInv:
lld_lcdWriteReg(0x46, (((SCREEN_WIDTH - y - 1) & 0x00FF) << 8) | ((SCREEN_WIDTH - (y+cy)) & 0x00FF));
lld_lcdWriteReg(0x48, (SCREEN_HEIGHT - (x+cx)) & 0x01FF);
lld_lcdWriteReg(0x47, (SCREEN_HEIGHT - x - 1) & 0x01FF);
break;
}
lld_lcdSetCursor(x, y);
}
static void lld_lcdResetViewPort(void) {
switch(GDISP.Orientation) {
case portrait:
case portraitInv:
lld_lcdSetViewPort(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
break;
case landscape:
case landscapeInv:
lld_lcdSetViewPort(0, 0, SCREEN_HEIGHT, SCREEN_WIDTH);
break;
}
}
#endif /* S6D1121_H */
|
