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
|
/*
* Copyright 2018 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <imx_mipi_dsi_bridge.h>
#include <mipi_display.h>
#include <linux/compat.h>
#define CMD_TABLE_LEN 2
typedef u8 cmd_set_table[CMD_TABLE_LEN];
/* Write Manufacture Command Set Control */
#define WRMAUCCTR 0xFE
/* Manufacturer Command Set pages (CMD2) */
static const cmd_set_table manufacturer_cmd_set[] = {
{0xFE, 0x0B},
{0x28, 0x40},
{0x29, 0x4F},
{0xFE, 0x0E},
{0x4B, 0x00},
{0x4C, 0x0F},
{0x4D, 0x20},
{0x4E, 0x40},
{0x4F, 0x60},
{0x50, 0xA0},
{0x51, 0xC0},
{0x52, 0xE0},
{0x53, 0xFF},
{0xFE, 0x0D},
{0x18, 0x08},
{0x42, 0x00},
{0x08, 0x41},
{0x46, 0x02},
{0x72, 0x09},
{0xFE, 0x0A},
{0x24, 0x17},
{0x04, 0x07},
{0x1A, 0x0C},
{0x0F, 0x44},
{0xFE, 0x04},
{0x00, 0x0C},
{0x05, 0x08},
{0x06, 0x08},
{0x08, 0x08},
{0x09, 0x08},
{0x0A, 0xE6},
{0x0B, 0x8C},
{0x1A, 0x12},
{0x1E, 0xE0},
{0x29, 0x93},
{0x2A, 0x93},
{0x2F, 0x02},
{0x31, 0x02},
{0x33, 0x05},
{0x37, 0x2D},
{0x38, 0x2D},
{0x3A, 0x1E},
{0x3B, 0x1E},
{0x3D, 0x27},
{0x3F, 0x80},
{0x40, 0x40},
{0x41, 0xE0},
{0x4F, 0x2F},
{0x50, 0x1E},
{0xFE, 0x06},
{0x00, 0xCC},
{0x05, 0x05},
{0x07, 0xA2},
{0x08, 0xCC},
{0x0D, 0x03},
{0x0F, 0xA2},
{0x32, 0xCC},
{0x37, 0x05},
{0x39, 0x83},
{0x3A, 0xCC},
{0x41, 0x04},
{0x43, 0x83},
{0x44, 0xCC},
{0x49, 0x05},
{0x4B, 0xA2},
{0x4C, 0xCC},
{0x51, 0x03},
{0x53, 0xA2},
{0x75, 0xCC},
{0x7A, 0x03},
{0x7C, 0x83},
{0x7D, 0xCC},
{0x82, 0x02},
{0x84, 0x83},
{0x85, 0xEC},
{0x86, 0x0F},
{0x87, 0xFF},
{0x88, 0x00},
{0x8A, 0x02},
{0x8C, 0xA2},
{0x8D, 0xEA},
{0x8E, 0x01},
{0x8F, 0xE8},
{0xFE, 0x06},
{0x90, 0x0A},
{0x92, 0x06},
{0x93, 0xA0},
{0x94, 0xA8},
{0x95, 0xEC},
{0x96, 0x0F},
{0x97, 0xFF},
{0x98, 0x00},
{0x9A, 0x02},
{0x9C, 0xA2},
{0xAC, 0x04},
{0xFE, 0x06},
{0xB1, 0x12},
{0xB2, 0x17},
{0xB3, 0x17},
{0xB4, 0x17},
{0xB5, 0x17},
{0xB6, 0x11},
{0xB7, 0x08},
{0xB8, 0x09},
{0xB9, 0x06},
{0xBA, 0x07},
{0xBB, 0x17},
{0xBC, 0x17},
{0xBD, 0x17},
{0xBE, 0x17},
{0xBF, 0x17},
{0xC0, 0x17},
{0xC1, 0x17},
{0xC2, 0x17},
{0xC3, 0x17},
{0xC4, 0x0F},
{0xC5, 0x0E},
{0xC6, 0x00},
{0xC7, 0x01},
{0xC8, 0x10},
{0xFE, 0x06},
{0x95, 0xEC},
{0x8D, 0xEE},
{0x44, 0xEC},
{0x4C, 0xEC},
{0x32, 0xEC},
{0x3A, 0xEC},
{0x7D, 0xEC},
{0x75, 0xEC},
{0x00, 0xEC},
{0x08, 0xEC},
{0x85, 0xEC},
{0xA6, 0x21},
{0xA7, 0x05},
{0xA9, 0x06},
{0x82, 0x06},
{0x41, 0x06},
{0x7A, 0x07},
{0x37, 0x07},
{0x05, 0x06},
{0x49, 0x06},
{0x0D, 0x04},
{0x51, 0x04},
};
static u8 color_format_from_dsi_format(enum mipi_dsi_pixel_format format)
{
switch (format) {
case MIPI_DSI_FMT_RGB565:
return 0x55;
case MIPI_DSI_FMT_RGB666:
case MIPI_DSI_FMT_RGB666_PACKED:
return 0x66;
case MIPI_DSI_FMT_RGB888:
return 0x77;
default:
return 0x77; /* for backward compatibility */
}
};
static int mipi_dsi_generic_write(const void *payload, size_t size)
{
int ret;
u16 tx_buf;
u8 *tx;
tx_buf = 0;
tx = (u8 *)&tx_buf;
switch (size) {
case 0:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM, tx, 0);
break;
case 1:
tx[0] = *(u8 *)payload;
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM, tx, 0);
break;
case 2:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM, (const u8 *)payload, 0);
break;
default:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_GENERIC_LONG_WRITE, (const u8 *)payload, size);
break;
}
return ret;
}
static int mipi_dsi_dcs_write(u8 cmd, const void *data, size_t len)
{
u32 size;
u8 *tx;
u16 tx_buf;
int ret;
if (len > 0) {
size = 1 + len;
tx = kmalloc(size, GFP_KERNEL);
if (!tx)
return -ENOMEM;
/* concatenate the DCS command byte and the payload */
tx[0] = cmd;
memcpy(&tx[1], data, len);
} else {
tx = (u8 *)&tx_buf;
tx[0] = cmd;
tx[1] = 0;
size = 1;
}
switch (size) {
case 1:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_DCS_SHORT_WRITE, tx, 0);
break;
case 2:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_DCS_SHORT_WRITE_PARAM, tx, 0);
break;
default:
ret = imx_mipi_dsi_bridge_pkt_write(MIPI_DSI_DCS_LONG_WRITE, tx, size);
break;
}
if (len > 0)
kfree(tx);
return ret;
}
static int rad_panel_push_cmd_list(void)
{
size_t i;
const u8 *cmd;
size_t count = sizeof(manufacturer_cmd_set) / CMD_TABLE_LEN;
int ret = 0;
for (i = 0; i < count ; i++) {
cmd = manufacturer_cmd_set[i];
ret = mipi_dsi_generic_write(cmd, CMD_TABLE_LEN);
if (ret < 0)
return ret;
}
return ret;
};
int rm67191_lcd_setup(struct mipi_dsi_client_dev *panel_dev)
{
u8 color_format = color_format_from_dsi_format(panel_dev->format);
u16 brightness;
int ret;
ret = rad_panel_push_cmd_list();
if (ret < 0) {
printf("Failed to send MCS (%d)\n", ret);
return -EIO;
}
/* Select User Command Set table (CMD1) */
ret = mipi_dsi_generic_write((u8[]){ WRMAUCCTR, 0x00 }, 2);
if (ret < 0)
return -EIO;
/* Software reset */
ret = mipi_dsi_dcs_write(MIPI_DCS_SOFT_RESET, NULL, 0);
if (ret < 0) {
printf("Failed to do Software Reset (%d)\n", ret);
return -EIO;
}
mdelay(10);
/* Set DSI mode */
ret = mipi_dsi_generic_write((u8[]){ 0xC2, 0x0B }, 2);
if (ret < 0) {
printf("Failed to set DSI mode (%d)\n", ret);
return -EIO;
}
/* Set tear ON */
ret = mipi_dsi_dcs_write(MIPI_DCS_SET_TEAR_ON, (u8[]){ 0x0 }, 1);
if (ret < 0) {
printf("Failed to set tear ON (%d)\n", ret);
return -EIO;
}
/* Set tear scanline */
ret = mipi_dsi_generic_write((u8[]){ MIPI_DCS_SET_TEAR_SCANLINE, 0x3, 0x80 }, 3);
if (ret < 0) {
printf("Failed to set tear scanline (%d)\n", ret);
return -EIO;
}
/* Set pixel format */
ret = mipi_dsi_dcs_write(MIPI_DCS_SET_PIXEL_FORMAT, &color_format, 1);
if (ret < 0) {
printf("Failed to set pixel format (%d)\n", ret);
return -EIO;
}
/* Set display brightness */
brightness = 255; /* Max brightness */
ret = mipi_dsi_dcs_write(MIPI_DCS_SET_DISPLAY_BRIGHTNESS, &brightness, 2);
if (ret < 0) {
printf("Failed to set display brightness (%d)\n",
ret);
return -EIO;
}
/* Exit sleep mode */
ret = mipi_dsi_dcs_write(MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
if (ret < 0) {
printf("Failed to exit sleep mode (%d)\n", ret);
return -EIO;
}
mdelay(5);
ret = mipi_dsi_dcs_write(MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
if (ret < 0) {
printf("Failed to set display ON (%d)\n", ret);
return -EIO;
}
return 0;
}
static struct mipi_dsi_client_driver rm67191_drv = {
.name = "RM67191_OLED",
.dsi_client_setup = rm67191_lcd_setup,
};
void rm67191_init(void)
{
imx_mipi_dsi_bridge_add_client_driver(&rm67191_drv);
}
|
