Commit | Line | Data |
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dfc5ed2a MB |
1 | /* |
2 | * include/asm-sh/gpio.h | |
3 | * | |
2967dab1 | 4 | * Generic GPIO API and pinmux table support for SuperH. |
dfc5ed2a | 5 | * |
2967dab1 | 6 | * Copyright (c) 2008 Magnus Damm |
dfc5ed2a MB |
7 | * |
8 | * This file is subject to the terms and conditions of the GNU General Public | |
9 | * License. See the file "COPYING" in the main directory of this archive | |
10 | * for more details. | |
11 | */ | |
12 | #ifndef __ASM_SH_GPIO_H | |
13 | #define __ASM_SH_GPIO_H | |
14 | ||
e4b41dbd | 15 | #include <linux/kernel.h> |
55010937 PM |
16 | #include <linux/errno.h> |
17 | ||
dfc5ed2a | 18 | #if defined(CONFIG_CPU_SH3) |
f15cbe6f | 19 | #include <cpu/gpio.h> |
dfc5ed2a MB |
20 | #endif |
21 | ||
2967dab1 MD |
22 | typedef unsigned short pinmux_enum_t; |
23 | typedef unsigned char pinmux_flag_t; | |
24 | ||
25 | #define PINMUX_TYPE_NONE 0 | |
26 | #define PINMUX_TYPE_FUNCTION 1 | |
27 | #define PINMUX_TYPE_GPIO 2 | |
28 | #define PINMUX_TYPE_OUTPUT 3 | |
29 | #define PINMUX_TYPE_INPUT 4 | |
30 | #define PINMUX_TYPE_INPUT_PULLUP 5 | |
31 | #define PINMUX_TYPE_INPUT_PULLDOWN 6 | |
32 | ||
33 | #define PINMUX_FLAG_TYPE (0x7) | |
34 | #define PINMUX_FLAG_WANT_PULLUP (1 << 3) | |
35 | #define PINMUX_FLAG_WANT_PULLDOWN (1 << 4) | |
36 | ||
37 | struct pinmux_gpio { | |
38 | pinmux_enum_t enum_id; | |
39 | pinmux_flag_t flags; | |
40 | }; | |
41 | ||
42 | #define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark } | |
43 | #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 | |
44 | ||
45 | struct pinmux_cfg_reg { | |
46 | unsigned long reg, reg_width, field_width; | |
47 | unsigned long *cnt; | |
48 | pinmux_enum_t *enum_ids; | |
49 | }; | |
50 | ||
51 | #define PINMUX_CFG_REG(name, r, r_width, f_width) \ | |
52 | .reg = r, .reg_width = r_width, .field_width = f_width, \ | |
53 | .cnt = (unsigned long [r_width / f_width]) {}, \ | |
54 | .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \ | |
55 | ||
56 | struct pinmux_data_reg { | |
57 | unsigned long reg, reg_width; | |
58 | pinmux_enum_t *enum_ids; | |
59 | }; | |
60 | ||
61 | #define PINMUX_DATA_REG(name, r, r_width) \ | |
62 | .reg = r, .reg_width = r_width, \ | |
63 | .enum_ids = (pinmux_enum_t [r_width]) \ | |
64 | ||
65 | struct pinmux_range { | |
66 | pinmux_enum_t begin; | |
67 | pinmux_enum_t end; | |
42eed42b | 68 | pinmux_enum_t force; |
2967dab1 MD |
69 | }; |
70 | ||
71 | struct pinmux_info { | |
72 | char *name; | |
73 | pinmux_enum_t reserved_id; | |
74 | struct pinmux_range data; | |
75 | struct pinmux_range input; | |
76 | struct pinmux_range input_pd; | |
77 | struct pinmux_range input_pu; | |
78 | struct pinmux_range output; | |
79 | struct pinmux_range mark; | |
80 | struct pinmux_range function; | |
81 | ||
82 | unsigned first_gpio, last_gpio; | |
83 | ||
84 | struct pinmux_gpio *gpios; | |
85 | struct pinmux_cfg_reg *cfg_regs; | |
86 | struct pinmux_data_reg *data_regs; | |
87 | ||
88 | pinmux_enum_t *gpio_data; | |
89 | unsigned int gpio_data_size; | |
90 | ||
91 | unsigned long *gpio_in_use; | |
92 | }; | |
93 | ||
94 | int register_pinmux(struct pinmux_info *pip); | |
95 | ||
96 | int __gpio_request(unsigned gpio); | |
97 | static inline int gpio_request(unsigned gpio, const char *label) | |
98 | { | |
99 | return __gpio_request(gpio); | |
100 | } | |
101 | void gpio_free(unsigned gpio); | |
102 | int gpio_direction_input(unsigned gpio); | |
103 | int gpio_direction_output(unsigned gpio, int value); | |
104 | int gpio_get_value(unsigned gpio); | |
105 | void gpio_set_value(unsigned gpio, int value); | |
10bfc6e1 | 106 | |
55010937 PM |
107 | /* IRQ modes are unspported */ |
108 | static inline int gpio_to_irq(unsigned gpio) | |
109 | { | |
110 | WARN_ON(1); | |
111 | return -EINVAL; | |
112 | } | |
113 | ||
114 | static inline int irq_to_gpio(unsigned irq) | |
115 | { | |
116 | WARN_ON(1); | |
117 | return -EINVAL; | |
118 | } | |
119 | ||
10bfc6e1 | 120 | #include <asm-generic/gpio.h> |
2967dab1 | 121 | |
dfc5ed2a | 122 | #endif /* __ASM_SH_GPIO_H */ |