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
|
/*
* 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://chibios-gfx.com/license.html
*/
/**
* @file drivers/gdisp/SSD1289/gdisp_lld_board_firebullstm32f103.h
* @brief GDISP Graphic Driver subsystem board interface for the SSD1289 display.
*
* @addtogroup GDISP
* @{
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define SET_CS palSetPad(GPIOD, 12);
#define CLR_CS palClearPad(GPIOD, 12);
#define SET_RS palSetPad(GPIOD, 13);
#define CLR_RS palClearPad(GPIOD, 13);
#define SET_WR palSetPad(GPIOD, 14);
#define CLR_WR palClearPad(GPIOD, 14);
#define SET_RD palSetPad(GPIOD, 15);
#define CLR_RD palClearPad(GPIOD, 15);
/**
* @brief Initialise the board for the display.
* @notes This board definition uses GPIO and assumes exclusive access to these GPIO pins
*
* @notapi
*/
static inline void init_board(void) {
palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOD, 12, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOD, 13, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOD, 14, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOD, 15, PAL_MODE_OUTPUT_PUSHPULL);
// Configure the pins to a well know state
SET_RS;
SET_RD;
SET_WR;
CLR_CS;
}
/**
* @brief Set or clear the lcd reset pin.
*
* @param[in] state TRUE = lcd in reset, FALSE = normal operation
*
* @notapi
*/
static inline void setpin_reset(bool_t state) {
(void) state;
/* Nothing to do here - reset pin tied to Vcc */
}
/**
* @brief Set the lcd back-light level.
*
* @param[in] percent 0 to 100%
*
* @notapi
*/
static inline void set_backlight(uint8_t percent) {
(void) percent;
/* Nothing to do here - Backlight always on */
}
/**
* @brief Take exclusive control of the bus
*
* @notapi
*/
static inline void acquire_bus(void) {
/* Nothing to do here since LCD is the only device on that bus */
}
/**
* @brief Release exclusive control of the bus
*
* @notapi
*/
static inline void release_bus(void) {
/* Nothing to do here since LCD is the only device on that bus */
}
/**
* @brief Send data to the index register.
*
* @param[in] index The index register to set
*
* @notapi
*/
static inline void write_index(uint16_t index) {
palWritePort(GPIOE, index);
CLR_RS; CLR_WR; SET_WR; SET_RS;
}
/**
* @brief Send data to the lcd.
*
* @param[in] data The data to send
*
* @notapi
*/
static inline void write_data(uint16_t data) {
palWritePort(GPIOE, data);
CLR_WR; SET_WR;
}
#if GDISP_HARDWARE_READPIXEL || GDISP_HARDWARE_SCROLL || defined(__DOXYGEN__)
/**
* @brief Read data from the lcd.
*
* @return The data from the lcd
* @note The chip select may need to be asserted/de-asserted
* around the actual spi read
*
* @notapi
*/
static inline uint16_t read_data(void) {
uint16_t value;
// change pin mode to digital input
palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_INPUT);
CLR_RD;
value = palReadPort(GPIOE);
value = palReadPort(GPIOE);
SET_RD;
// change pin mode back to digital output
palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
return value;
}
#endif
#endif /* _GDISP_LLD_BOARD_H */
/** @} */
|
