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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
|
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#include "gfx.h"
#if GFX_USE_GDISP
#if defined(GDISP_SCREEN_HEIGHT)
#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
#undef GISP_SCREEN_HEIGHT
#endif
#if defined(GDISP_SCREEN_WIDTH)
#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
#undef GDISP_SCREEN_WIDTH
#endif
#define GDISP_DRIVER_VMT GDISPVMT_ILI9481
#include "drivers/gdisp/ILI9481/gdisp_lld_config.h"
#include "src/gdisp/driver.h"
#include "board_ILI9481.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 480
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 320
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 50
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some common routines and macros
#define dummy_read(g) { volatile uint16_t dummy; dummy = read_data(g); (void) dummy; }
#define write_reg(g, reg, data) { write_index(g, reg); write_data(g, data); }
#define write_reg2x16(g, reg, data1, data2) { write_index(g, reg); write_data(g, (data1)>>8); write_data(g, (uint8_t)(data1)); write_data(g, (data2)>>8); write_data(g, (uint8_t)(data2));}
static void set_viewport(GDisplay* g) {
write_reg2x16(g, 0x2A, g->p.x, g->p.x + g->p.cx - 1);
write_reg2x16(g, 0x2B, g->p.y, g->p.y + g->p.cy - 1);
write_index(g, 0x2C);
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
// No private area for this controller
g->priv = 0;
// Initialise the board interface
init_board(g);
/* Hardware reset */
setpin_reset(g, TRUE);
gfxSleepMilliseconds(20);
setpin_reset(g, FALSE);
gfxSleepMilliseconds(20);
/* Get the bus for the following initialisation commands */
acquire_bus(g);
/* Enable Access to all Manufacturer commands (0xB0 and higher opcodes) */
write_reg(g, 0xB0, 0x00);
/* Frame Memory Access and Interface Setting */
write_index(g, 0xB3);
write_data(g, 0x02);
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0x10);
/* Display Mode and Frame Memory Write Mode Setting (B4h) */
/* Use internal clock for synchronization */
/* Use DBI interface (only DB0-17, no HSYNC, VSYNC or CLK) */
write_reg(g, 0xB4, 0x00);
/* Internal Backlight Control */
/* write_index(g, 0xB9); // PWM Settings for Brightness Control
write_data(g, 0x01); // Disabled by default.
write_data(g, 0xFF); // 0xFF = Max brightness
write_data(g, 0xFF);
write_data(g, 0x18); */
/* Panel Driving settings */
write_index(g, 0xC0);
write_data(g, 0x03);
write_data(g, 0x3B);
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0x00);
write_data(g, 0x01);
write_data(g, 0x00); /* NW */
write_data(g, 0x43);
/* Display timings in Operating Mode */
write_index(g, 0xC1);
write_data(g, 0x08);
write_data(g, 0x15); /* CLOCK */
write_data(g, 0x08);
write_data(g, 0x08);
/* S/VCOM/Gate Driving timing setting */
write_index(g, 0xC4);
write_data(g, 0x15);
write_data(g, 0x03);
write_data(g, 0x03);
write_data(g, 0x01);
/* Interface Setting */
write_reg(g, 0xC6, 0x02);
/* Gamma Setting - should be changed if using a different panel */
write_index(g, 0xC8);
write_data(g, 0x0C);
write_data(g, 0x05);
write_data(g, 0x0A); /*0X12 */
write_data(g, 0x6B); /*0x7D */
write_data(g, 0x04);
write_data(g, 0x06); /*0x08 */
write_data(g, 0x15); /*0x0A */
write_data(g, 0x10);
write_data(g, 0x00);
write_data(g, 0x60); /*0x23 */
/* Address Mode setting */
write_reg(g, 0x36, 0x00);
/* Set Pixel Format = 16 bits per pixel */
/* The driver supports upto 24 bits per pixel, with dither */
write_reg(g, 0x3A, 0x55);
/* Exit Idle Mode */
write_index(g, 0x38);
/* Power Setting */
write_index(g, 0xD0);
write_data(g, 0x07);
write_data(g, 0x07); /* VCI = VCI1 */
write_data(g, 0x14); /* VRH 0x1D */
write_data(g, 0xA2); /* BT 0x06 */
/* VCOM Setting */
write_index(g, 0xD1);
write_data(g, 0x03);
write_data(g, 0x5A); /* VCM 0x5A */
write_data(g, 0x10); /* VDV */
/* Power Setting for Normal Mode */
write_index(g, 0xD2);
write_data(g, 0x03);
write_data(g, 0x04); /* 0x24 */
write_data(g, 0x04);
/* Exit Sleep Mode */
write_index(g, 0x11);
gfxSleepMilliseconds(150);
/* Display ON */
write_index(g, 0x29);
gfxSleepMilliseconds(30);
// Finish Init
post_init_board(g);
// Release the bus
release_bus(g);
/* Turn on the back-light */
set_backlight(g, GDISP_INITIAL_BACKLIGHT);
/* Initialise the GDISP structure */
g->g.Width = GDISP_SCREEN_WIDTH;
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Orientation = GDISP_ROTATE_0;
g->g.Powermode = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return TRUE;
}
#if GDISP_HARDWARE_STREAM_WRITE
LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
}
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
write_data(g, gdispColor2Native(g->p.color));
}
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
release_bus(g);
}
#endif
#if GDISP_HARDWARE_STREAM_READ
LLDSPEC void gdisp_lld_read_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
setreadmode(g);
dummy_read(g);
}
LLDSPEC color_t gdisp_lld_read_color(GDisplay *g) {
uint16_t data;
data = read_data(g);
return gdispNative2Color(data);
}
LLDSPEC void gdisp_lld_read_stop(GDisplay *g) {
setwritemode(g);
release_bus(g);
}
#endif
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff:
acquire_bus(g);
write_reg(g, 0x0010, 0x0001); /* enter sleep mode */
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_reg(g, 0x0010, 0x0000); /* leave sleep mode */
release_bus(g);
if (g->g.Powermode != powerSleep)
gdisp_lld_init();
break;
case powerSleep:
acquire_bus(g);
write_reg(g, 0x0010, 0x0001); /* enter sleep mode */
release_bus(g);
break;
default:
return;
}
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_ORIENTATION:
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
acquire_bus(g);
write_reg(g, 0xC0, 0x03);
write_reg(g, 0x36, 0x00); /* X and Y axes non-inverted */
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus(g);
write_reg(g, 0xC0, 0x02);
write_reg(g, 0x36, 0x20); /* Invert X and Y axes */
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus(g);
write_reg(g, 0xC0, 0x06);
write_reg(g, 0x36, 0x00); /* X and Y axes non-inverted */
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus(g);
write_reg(g, 0xC0, 0x07);
write_reg(g, 0x36, 0x20); /* Invert X and Y axes */
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (orientation_t)g->p.ptr;
return;
//case GDISP_CONTROL_BACKLIGHT:
//case GDISP_CONTROL_CONTRAST:
default:
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
|
