1 /*
2 * Copyright 2006-2009 Analog Devices Inc.
3 *
4 * Licensed under the GPL-2 or later.
5 */
6
7 #ifndef __ARCH_BLACKFIN_GPIO_H__
8 #define __ARCH_BLACKFIN_GPIO_H__
9
10 #include <asm-generic/gpio.h>
11 #include <asm/portmux.h>
12
13 #define gpio_bank(x) ((x) >> 4)
14 #define gpio_bit(x) (1<<((x) & 0xF))
15 #define gpio_sub_n(x) ((x) & 0xF)
16
17 #define GPIO_BANKSIZE 16
18 #define GPIO_BANK_NUM DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
19
20 #define GPIO_0 0
21 #define GPIO_1 1
22 #define GPIO_2 2
23 #define GPIO_3 3
24 #define GPIO_4 4
25 #define GPIO_5 5
26 #define GPIO_6 6
27 #define GPIO_7 7
28 #define GPIO_8 8
29 #define GPIO_9 9
30 #define GPIO_10 10
31 #define GPIO_11 11
32 #define GPIO_12 12
33 #define GPIO_13 13
34 #define GPIO_14 14
35 #define GPIO_15 15
36 #define GPIO_16 16
37 #define GPIO_17 17
38 #define GPIO_18 18
39 #define GPIO_19 19
40 #define GPIO_20 20
41 #define GPIO_21 21
42 #define GPIO_22 22
43 #define GPIO_23 23
44 #define GPIO_24 24
45 #define GPIO_25 25
46 #define GPIO_26 26
47 #define GPIO_27 27
48 #define GPIO_28 28
49 #define GPIO_29 29
50 #define GPIO_30 30
51 #define GPIO_31 31
52 #define GPIO_32 32
53 #define GPIO_33 33
54 #define GPIO_34 34
55 #define GPIO_35 35
56 #define GPIO_36 36
57 #define GPIO_37 37
58 #define GPIO_38 38
59 #define GPIO_39 39
60 #define GPIO_40 40
61 #define GPIO_41 41
62 #define GPIO_42 42
63 #define GPIO_43 43
64 #define GPIO_44 44
65 #define GPIO_45 45
66 #define GPIO_46 46
67 #define GPIO_47 47
68
69 #define PERIPHERAL_USAGE 1
70 #define GPIO_USAGE 0
71 #define MAX_GPIOS MAX_BLACKFIN_GPIOS
72
73 #ifndef __ASSEMBLY__
74
75 #ifndef CONFIG_ADI_GPIO2
76 void set_gpio_dir(unsigned, unsigned short);
77 void set_gpio_inen(unsigned, unsigned short);
78 void set_gpio_polar(unsigned, unsigned short);
79 void set_gpio_edge(unsigned, unsigned short);
80 void set_gpio_both(unsigned, unsigned short);
81 void set_gpio_data(unsigned, unsigned short);
82 void set_gpio_maska(unsigned, unsigned short);
83 void set_gpio_maskb(unsigned, unsigned short);
84 void set_gpio_toggle(unsigned);
85 void set_gpiop_dir(unsigned, unsigned short);
86 void set_gpiop_inen(unsigned, unsigned short);
87 void set_gpiop_polar(unsigned, unsigned short);
88 void set_gpiop_edge(unsigned, unsigned short);
89 void set_gpiop_both(unsigned, unsigned short);
90 void set_gpiop_data(unsigned, unsigned short);
91 void set_gpiop_maska(unsigned, unsigned short);
92 void set_gpiop_maskb(unsigned, unsigned short);
93 unsigned short get_gpio_dir(unsigned);
94 unsigned short get_gpio_inen(unsigned);
95 unsigned short get_gpio_polar(unsigned);
96 unsigned short get_gpio_edge(unsigned);
97 unsigned short get_gpio_both(unsigned);
98 unsigned short get_gpio_maska(unsigned);
99 unsigned short get_gpio_maskb(unsigned);
100 unsigned short get_gpio_data(unsigned);
101 unsigned short get_gpiop_dir(unsigned);
102 unsigned short get_gpiop_inen(unsigned);
103 unsigned short get_gpiop_polar(unsigned);
104 unsigned short get_gpiop_edge(unsigned);
105 unsigned short get_gpiop_both(unsigned);
106 unsigned short get_gpiop_maska(unsigned);
107 unsigned short get_gpiop_maskb(unsigned);
108 unsigned short get_gpiop_data(unsigned);
109
110 struct gpio_port_t {
111 unsigned short data;
112 unsigned short dummy1;
113 unsigned short data_clear;
114 unsigned short dummy2;
115 unsigned short data_set;
116 unsigned short dummy3;
117 unsigned short toggle;
118 unsigned short dummy4;
119 unsigned short maska;
120 unsigned short dummy5;
121 unsigned short maska_clear;
122 unsigned short dummy6;
123 unsigned short maska_set;
124 unsigned short dummy7;
125 unsigned short maska_toggle;
126 unsigned short dummy8;
127 unsigned short maskb;
128 unsigned short dummy9;
129 unsigned short maskb_clear;
130 unsigned short dummy10;
131 unsigned short maskb_set;
132 unsigned short dummy11;
133 unsigned short maskb_toggle;
134 unsigned short dummy12;
135 unsigned short dir;
136 unsigned short dummy13;
137 unsigned short polar;
138 unsigned short dummy14;
139 unsigned short edge;
140 unsigned short dummy15;
141 unsigned short both;
142 unsigned short dummy16;
143 unsigned short inen;
144 };
145 #else
146 extern struct gpio_port_t * const gpio_array[];
147 #endif
148
149 #ifdef ADI_SPECIAL_GPIO_BANKS
150 void special_gpio_free(unsigned gpio);
151 int special_gpio_request(unsigned gpio, const char *label);
152 #endif
153
154 void gpio_labels(void);
155
gpio_is_valid(int number)156 static inline int gpio_is_valid(int number)
157 {
158 return number >= 0 && number < MAX_GPIOS;
159 }
160
161 #include <linux/ctype.h>
162
163 #define gpio_status() gpio_labels()
164
165 #endif /* __ASSEMBLY__ */
166
167 #endif /* __ARCH_BLACKFIN_GPIO_H__ */
168