2 * Copyright 2006-2009 Analog Devices Inc.
4 * Licensed under the GPL-2 or later.
7 #ifndef __ARCH_BLACKFIN_GPIO_H__
8 #define __ARCH_BLACKFIN_GPIO_H__
10 #include <asm-generic/gpio.h>
11 #include <asm/portmux.h>
13 #define gpio_bank(x) ((x) >> 4)
14 #define gpio_bit(x) (1<<((x) & 0xF))
15 #define gpio_sub_n(x) ((x) & 0xF)
17 #define GPIO_BANKSIZE 16
18 #define GPIO_BANK_NUM DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
69 #define PERIPHERAL_USAGE 1
71 #define MAX_GPIOS MAX_BLACKFIN_GPIOS
75 #ifdef CONFIG_ADI_GPIO1
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);
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;
136 unsigned short dummy13;
137 unsigned short polar;
138 unsigned short dummy14;
140 unsigned short dummy15;
142 unsigned short dummy16;
146 extern struct gpio_port_t * const gpio_array[];
149 #ifdef ADI_SPECIAL_GPIO_BANKS
150 void special_gpio_free(unsigned gpio);
151 int special_gpio_request(unsigned gpio, const char *label);
154 void gpio_labels(void);
156 static inline int gpio_is_valid(int number)
158 return number >= 0 && number < MAX_GPIOS;
161 #include <linux/ctype.h>
163 static inline int name_to_gpio(const char *name)
167 if (tolower(*name) == 'p') {
170 switch (tolower(*name)) {
172 case 'a': port_base = GPIO_PA0; break;
175 case 'b': port_base = GPIO_PB0; break;
178 case 'c': port_base = GPIO_PC0; break;
181 case 'd': port_base = GPIO_PD0; break;
184 case 'e': port_base = GPIO_PE0; break;
187 case 'f': port_base = GPIO_PF0; break;
190 case 'g': port_base = GPIO_PG0; break;
193 case 'h': port_base = GPIO_PH0; break;
196 case 'i': port_base = GPIO_PI0; break;
199 case 'j': port_base = GPIO_PJ0; break;
208 return port_base + simple_strtoul(name, NULL, 10);
210 #define name_to_gpio(n) name_to_gpio(n)
212 #define gpio_status() gpio_labels()
214 #endif /* __ASSEMBLY__ */
216 #endif /* __ARCH_BLACKFIN_GPIO_H__ */