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
|
/****************************************************************************
* configs/zkit-arm-1769/src/lpc17_lcd.c
*
* Copyright (C) 2013 Zilogic Systems. All rights reserved.
* Author: Manikandan <code@zilogic.com>
*
* Based on configs/lm3s6965-ek/src/up_oled.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdbool.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/st7567.h>
#include "up_arch.h"
#include "up_internal.h"
#include "lpc17_gpio.h"
#include "lpc17_ssp.h"
#include "zkitarm_internal.h"
#ifdef CONFIG_NX_LCDDRIVER
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Enables debug output from this file (needs CONFIG_DEBUG with
* CONFIG_DEBUG_VERBOSE too)
*/
#undef LCD_DEBUG /* Define to enable debug */
#undef LCD_VERBOSE /* Define to enable verbose debug */
#ifdef LCD_DEBUG
# define leddbg lldbg
# ifdef LCD_VERBOSE
# define ledvdbg lldbg
# else
# define ledvdbg(x...)
# endif
#else
# undef LCD_VERBOSE
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
FAR struct spi_dev_s *spi;
FAR struct lcd_dev_s *dev;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_lcd_initialize
****************************************************************************/
int board_lcd_initialize(void)
{
lpc17_configgpio(ZKITARM_OLED_RST);
lpc17_configgpio(ZKITARM_OLED_RS);
lpc17_gpiowrite(ZKITARM_OLED_RST, 1);
lpc17_gpiowrite(ZKITARM_OLED_RS, 1);
zkit_sspinitialize();
spi = lpc17_sspinitialize(0);
if (!spi)
{
glldbg("Failed to initialize SSP port 0\n");
return 0;
}
lpc17_gpiowrite(ZKITARM_OLED_RST, 0);
up_mdelay(1);
lpc17_gpiowrite(ZKITARM_OLED_RST, 1);
return 1;
}
/****************************************************************************
* Name: board_lcd_getdev
****************************************************************************/
FAR struct lcd_dev_s *board_lcd_getdev(int lcddev)
{
dev = st7567_initialize(spi, lcddev);
if (!dev)
{
glldbg("Failed to bind SSI port 0 to OLCD %d: %d\n", lcddev);
}
else
{
gllvdbg("Bound SSI port 0 to OLCD %d\n", lcddev);
/* And turn the OLCD on (CONFIG_LCD_MAXPOWER should be 1) */
(void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
return dev;
}
return NULL;
}
/****************************************************************************
* Name: board_lcd_uninitialize
****************************************************************************/
void board_lcd_uninitialize(void)
{
/* TO-FIX */
}
/******************************************************************************
* Name: lpc17_spicmddata
*
* Description:
* Set or clear the SD1329 D/Cn bit to select data (true) or command
* (false). This function must be provided by platform-specific logic.
* This is an implementation of the cmddata method of the SPI
* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
*
* Input Parameters:
*
* spi - SPI device that controls the bus the device that requires the CMD/
* DATA selection.
* devid - If there are multiple devices on the bus, this selects which one
* to select cmd or data. NOTE: This design restricts, for example,
* one one SPI display per SPI bus.
* cmd - true: select command; false: select data
*
* Returned Value:
* None
*
******************************************************************************/
int lpc17_ssp0cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
{
if (devid == SPIDEV_DISPLAY)
{
/* Set GPIO to 1 for data, 0 for command */
lpc17_gpiowrite(ZKITARM_OLED_RS, !cmd);
return OK;
}
return -ENODEV;
}
#endif /* CONFIG_NX_LCDDRIVER */
|
