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
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
|
/*
* This file is subject to the terms of the GFX License, v1.0. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://chibios-gfx.com/license.html
*/
/**
* @file drivers/gdisp/Nokia6610GE12/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE12 display.
*
* @addtogroup GDISP
* @{
*/
#include "gfx.h"
#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
/* Include the emulation code for things we don't support */
#include "gdisp/lld/emulation.c"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/* Controller definitions */
#include "GE12.h"
/* This controller is only ever used with a 132 x 132 display */
#if defined(GDISP_SCREEN_HEIGHT)
#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
#undef GDISP_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_SCREEN_HEIGHT 132
#define GDISP_SCREEN_WIDTH 132
#define GDISP_INITIAL_CONTRAST 38
#define GDISP_INITIAL_BACKLIGHT 100
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
#if defined(GDISP_USE_CUSTOM_BOARD) && GDISP_USE_CUSTOM_BOARD
/* Include the user supplied board definitions */
#include "gdisp_lld_board.h"
#elif defined(BOARD_OLIMEX_SAM7_EX256)
#include "gdisp_lld_board_olimexsam7ex256.h"
#else
/* Include the user supplied board definitions */
#include "gdisp_lld_board.h"
#endif
// Some macros just to make reading the code easier
#define delayms(ms) gfxSleepMilliseconds(ms)
#define write_data2(d1, d2) { write_data(d1); write_data(d2); }
#define write_data3(d1, d2, d3) { write_data(d1); write_data(d2); write_data(d3); }
#define write_cmd1(cmd, d1) { write_cmd(cmd); write_data(d1); }
#define write_cmd2(cmd, d1, d2) { write_cmd(cmd); write_data2(d1, d2); }
#define write_cmd3(cmd, d1, d2, d3) { write_cmd(cmd); write_data3(d1, d2, d3); }
// A very common thing to do.
// An inline function has been used here incase the parameters have side effects with the internal calculations.
static inline void setviewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
write_cmd2(CASET, x, x+cx-1); // Column address set
write_cmd2(PASET, y, y+cy-1); // Page address set
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* ---- Required Routines ---- */
/*
The following 2 routines are required.
All other routines are optional.
*/
/**
* @brief Low level GDISP driver initialization.
*
* @notapi
*/
bool_t gdisp_lld_init(void) {
/* Initialise your display */
init_board();
// Hardware reset
setpin_reset(TRUE);
delayms(20);
setpin_reset(FALSE);
delayms(20);
// Get the bus for the following initialisation commands
acquire_bus();
// UNTESTED
#if 1
write_cmd(SLEEPOUT); // Sleep out
write_cmd(INVON); // Inversion on: seems to be required for this controller
write_cmd1(COLMOD, 0x03); // Color Interface Pixel Format - 0x03 = 12 bits-per-pixel
write_cmd1(MADCTL, 0xC8); // Memory access controler - 0xC0 = mirror x and y, reverse rgb
write_cmd1(SETCON, GDISP_INITIAL_CONTRAST); // Write contrast
delayms(20);
write_cmd(DISPON); // Display On
#else
// Alternative
write_cmd(SOFTRST); // Software Reset
delayms(20);
write_cmd(INITESC); // Initial escape
delayms(20);
write_cmd1(REFSET, 0x00); // Refresh set
write_cmd(DISPCTRL); // Set Display control - really 7 bytes of data
write_data(128); // Set the lenght of one selection term
write_data(128); // Set N inversion -> no N inversion
write_data(134); // Set frame frequence and bias rate -> 2 devision of frequency and 1/8 bias, 1/67 duty, 96x67 size
write_data(84); // Set duty parameter
write_data(69); // Set duty parameter
write_data(82); // Set duty parameter
write_data(67); // Set duty parameter
write_cmd(GRAYSCALE0); // Grey scale 0 position set - really 15 bytes of data
write_data(1); // GCP1 - gray lavel to be output when the RAM data is "0001"
write_data(2); // GCP2 - gray lavel to be output when the RAM data is "0010"
write_data(4); // GCP3 - gray lavel to be output when the RAM data is "0011"
write_data(8); // GCP4 - gray lavel to be output when the RAM data is "0100"
write_data(16); // GCP5 - gray lavel to be output when the RAM data is "0101"
write_data(30); // GCP6 - gray lavel to be output when the RAM data is "0110"
write_data(40); // GCP7 - gray lavel to be output when the RAM data is "0111"
write_data(50); // GCP8 - gray lavel to be output when the RAM data is "1000"
write_data(60); // GCP9 - gray lavel to be output when the RAM data is "1001"
write_data(70); // GCP10 - gray lavel to be output when the RAM data is "1010"
write_data(80); // GCP11 - gray lavel to be output when the RAM data is "1011"
write_data(90); // GCP12 - gray lavel to be output when the RAM data is "1100"
write_data(100); // GCP13 - gray lavel to be output when the RAM data is "1101"
write_data(110); // GCP14 - gray lavel to be output when the RAM data is "1110"
write_data(127); // GCP15 - gray lavel to be output when the RAM data is "1111"
write_cmd1(GAMMA, 0x01); // Gamma curve set - select gray scale - GRAYSCALE 0 or GREYSCALE 1 - Select grey scale 0
write_cmd1(COMMONDRV, 0x00); // Command driver output - Set COM1-COM41 side come first, normal mod
write_cmd(NORMALMODE); // Set Normal mode (my)
// write_cmd(INVERSIONOFF); // Inversion off
write_cmd2(COLADDRSET, 0, 131); // Column address set
write_cmd2(PAGEADDRSET, 0, 131); // Page address set
write_cmd1(ACCESSCTRL, 0x40); // Memory access controler - 0x40 horizontal
// write_data(0x20); // vertical
write_cmd1(PWRCTRL, 0x04); // Power control - Internal resistance, V1OUT -> high power mode, oscilator devision rate
write_cmd(SLEEPOUT); // Sleep out
write_cmd(VOLTCTRL); // Voltage control - voltage control and write contrast define LCD electronic volume
// write_data(0x7f); // full voltage control
// write_data(0x03); // must be "1"
write_cmd1(CONTRAST, GDISP_INITIAL_CONTRAST); // Write contrast
delayms(20);
write_cmd(TEMPGRADIENT); // Temperature gradient - really 14 bytes of data
for(i=0; i<14; i++)
write_data(0);
write_cmd(BOOSTVON); // Booster voltage ON
write_cmd(DISPLAYON); // Finally - Display On
#endif
// Release the bus
release_bus();
/* Turn on the back-light */
set_backlight(GDISP_INITIAL_BACKLIGHT);
/* Initialise the GDISP structure to match */
GDISP.Width = GDISP_SCREEN_WIDTH;
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Orientation = GDISP_ROTATE_0;
GDISP.Powermode = powerOn;
GDISP.Backlight = GDISP_INITIAL_BACKLIGHT;
GDISP.Contrast = GDISP_INITIAL_CONTRAST;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
return TRUE;
}
/**
* @brief Draws a pixel on the display.
*
* @param[in] x X location of the pixel
* @param[in] y Y location of the pixel
* @param[in] color The color of the pixel
*
* @notapi
*/
void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
#endif
acquire_bus();
setviewport(x, y, 1, 1);
write_cmd3(RAMWR, 0, (color>>8) & 0x0F, color & 0xFF);
release_bus();
}
/* ---- Optional Routines ---- */
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a color.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] color The color of the fill
*
* @notapi
*/
void gdisp_lld_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
unsigned i, tuples;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
tuples = (cx*cy+1)/2; // With an odd sized area we over-print by one pixel.
// This extra pixel is ignored by the controller.
acquire_bus();
setviewport(x, y, cx, cy);
write_cmd(RAMWR);
for(i=0; i < tuples; i++)
write_data3(((color >> 4) & 0xFF), (((color << 4) & 0xF0)|((color >> 8) & 0x0F)), (color & 0xFF));
release_bus();
}
#endif
#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a bitmap.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] srcx, srcy The bitmap position to start the fill from
* @param[in] srccx The width of a line in the bitmap.
* @param[in] buffer The pixels to use to fill the area.
*
* @notapi
*/
void gdisp_lld_blit_area_ex(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
coord_t endx, endy, lg;
color_t c1, c2;
#if GDISP_PACKED_PIXELS
coord_t pos;
const uint8_t *p;
#endif
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; }
if (srcx+cx > srccx) cx = srccx - srcx;
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
/* What are our end points */
endx = srcx + cx;
endy = y + cy;
acquire_bus();
setviewport(x, y, cx, cy);
write_cmd(RAMWR);
#if !GDISP_PACKED_PIXELS
// Although this controller uses packed pixels we support unpacked pixel
// formats in this blit by packing the data as we feed it to the controller.
lg = srccx - cx;
buffer += srcy * srccx + srcx;
x = srcx;
while (1) {
/* Get a pixel */
c1 = *buffer++;
if (++x >= endx) {
if (++y >= endy) {
/* Odd pixel at end */
write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF));
break;
}
x = srcx;
buffer += lg;
}
/* Get the next pixel */
c2 = *buffer++;
write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
if (++x >= endx) {
if (++y >= endy)
break;
x = srcx;
buffer += lg;
}
}
#else
// Although this controller uses packed pixels, we may have to feed it into
// the controller with different packing to the source bitmap
#if !GDISP_PACKED_LINES
srccx = (srccx + 1) & ~1;
#endif
pos = srcy*srccx;
lg = (srccx - cx)/2*3;
p = ((const uint8_t *)buffer) + ((pos+srcx)/2 * 3);
x = srcx;
while (1) {
/* Get a pixel */
switch((pos+x)&1) {
case 0: c1 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
case 1: c1 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break;
}
if (++x >= endx) {
if (++y >= endy) {
/* Odd pixel at end */
write_data3(0, ((c1 >> 8) & 0x0F), (c1 & 0xFF));
break;
}
x = srcx;
p += lg;
pos += srccx;
}
/* Get the next pixel */
switch((pos+x)&1) {
case 0: c2 = (((color_t)p[0]) << 4)|(((color_t)p[1])>>4); break;
case 1: c2 = (((color_t)p[1]&0x0F) << 8)|((color_t)p[1]); break;
}
write_data3(((c1 >> 4) & 0xFF), (((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F)), (c2 & 0xFF));
if (++x >= endx) {
if (++y >= endy)
break;
x = srcx;
p += lg;
pos += srccx;
}
}
#endif
release_bus();
}
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD)
/**
* @brief Get the color of a particular pixel.
* @note If x,y is off the screen, the result is undefined.
*
* @param[in] x, y The start of the text
*
* @notapi
*/
color_t gdisp_lld_get_pixel_color(coord_t x, coord_t y) {
/* NOT IMPLEMENTED */
/* Some board hardware might support this in the future.
* The Olimex board doesn't.
*/
}
#endif
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL)
/**
* @brief Scroll vertically a section of the screen.
* @note If x,y + cx,cy is off the screen, the result is undefined.
* @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
*
* @param[in] x, y The start of the area to be scrolled
* @param[in] cx, cy The size of the area to be scrolled
* @param[in] lines The number of lines to scroll (Can be positive or negative)
* @param[in] bgcolor The color to fill the newly exposed area.
*
* @notapi
*/
void gdisp_lld_vertical_scroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
/* NOT IMPLEMENTED */
/* The hardware seems capable of doing this.
* It is just really complex so we leave it out for now.
*/
}
#endif
#if GDISP_HARDWARE_CONTROL || defined(__DOXYGEN__)
/**
* @brief Driver Control
* @details Unsupported control codes are ignored.
* @note The value parameter should always be typecast to (void *).
* @note There are some predefined and some specific to the low level driver.
* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
* GDISP_CONTROL_LLD - Low level driver control constants start at
* this value.
*
* @param[in] what What to do.
* @param[in] value The value to use (always cast to a void *).
*
* @notapi
*/
void gdisp_lld_control(unsigned what, void *value) {
/* The hardware is capable of supporting...
* GDISP_CONTROL_POWER - not implemented yet
* GDISP_CONTROL_ORIENTATION - not implemented yet
* GDISP_CONTROL_BACKLIGHT - supported (the OlimexSAM7EX256 board.h currently only implements off/on although PWM is supported by the hardware)
* GDISP_CONTROL_CONTRAST - supported
*/
switch(what) {
#if 0
// NOT IMPLEMENTED YET
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
// Code here
break;
case powerOn:
// Code here
/* You may need this ---
* if (GDISP.Powermode != powerSleep)
* gdisp_lld_init();
*/
break;
case powerSleep:
/* Code here */
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
#endif
#if 0
// NOT IMPLEMENTED YET
case GDISP_CONTROL_ORIENTATION:
if (GDISP.Orientation == (gdisp_orientation_t)value)
return;
// WriteSpiData(0x48); // no mirror Y (temporary to satisfy Olimex bmptoarray utility)
// WriteSpiData(0xC8); // restore to (mirror x and y, reverse rgb)
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
// Code here
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
// Code here
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
// Code here
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
// Code here
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
return;
#endif
case GDISP_CONTROL_BACKLIGHT:
if ((unsigned)value > 100) value = (void *)100;
set_backlight((unsigned)value);
GDISP.Backlight = (unsigned)value;
return;
case GDISP_CONTROL_CONTRAST:
if ((unsigned)value > 100) value = (void *)100;
acquire_bus();
write_cmd1(CONTRAST,(unsigned)value);
release_bus();
GDISP.Contrast = (unsigned)value;
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
/** @} */
|