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fae43399 MD |
1 | /* |
2 | * SuperH Pin Function Controller Support | |
3 | * | |
4 | * Copyright (c) 2008 Magnus Damm | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #ifndef __SH_PFC_H | |
12 | #define __SH_PFC_H | |
13 | ||
14 | #include <asm-generic/gpio.h> | |
15 | ||
16 | typedef unsigned short pinmux_enum_t; | |
17 | typedef unsigned short pinmux_flag_t; | |
18 | ||
19 | #define PINMUX_TYPE_NONE 0 | |
20 | #define PINMUX_TYPE_FUNCTION 1 | |
21 | #define PINMUX_TYPE_GPIO 2 | |
22 | #define PINMUX_TYPE_OUTPUT 3 | |
23 | #define PINMUX_TYPE_INPUT 4 | |
24 | #define PINMUX_TYPE_INPUT_PULLUP 5 | |
25 | #define PINMUX_TYPE_INPUT_PULLDOWN 6 | |
26 | ||
27 | #define PINMUX_FLAG_TYPE (0x7) | |
28 | #define PINMUX_FLAG_WANT_PULLUP (1 << 3) | |
29 | #define PINMUX_FLAG_WANT_PULLDOWN (1 << 4) | |
30 | ||
31 | #define PINMUX_FLAG_DBIT_SHIFT 5 | |
32 | #define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT) | |
33 | #define PINMUX_FLAG_DREG_SHIFT 10 | |
34 | #define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT) | |
35 | ||
36 | struct pinmux_gpio { | |
37 | pinmux_enum_t enum_id; | |
38 | pinmux_flag_t flags; | |
39 | }; | |
40 | ||
41 | #define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark } | |
42 | #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 | |
43 | ||
44 | struct pinmux_cfg_reg { | |
45 | unsigned long reg, reg_width, field_width; | |
46 | unsigned long *cnt; | |
47 | pinmux_enum_t *enum_ids; | |
48 | }; | |
49 | ||
50 | #define PINMUX_CFG_REG(name, r, r_width, f_width) \ | |
51 | .reg = r, .reg_width = r_width, .field_width = f_width, \ | |
52 | .cnt = (unsigned long [r_width / f_width]) {}, \ | |
53 | .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \ | |
54 | ||
55 | struct pinmux_data_reg { | |
56 | unsigned long reg, reg_width, reg_shadow; | |
57 | pinmux_enum_t *enum_ids; | |
58 | }; | |
59 | ||
60 | #define PINMUX_DATA_REG(name, r, r_width) \ | |
61 | .reg = r, .reg_width = r_width, \ | |
62 | .enum_ids = (pinmux_enum_t [r_width]) \ | |
63 | ||
ad2a8e7e MD |
64 | struct pinmux_irq { |
65 | int irq; | |
66 | pinmux_enum_t *enum_ids; | |
67 | }; | |
68 | ||
69 | #define PINMUX_IRQ(irq_nr, ids...) \ | |
70 | { .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } } \ | |
71 | ||
fae43399 MD |
72 | struct pinmux_range { |
73 | pinmux_enum_t begin; | |
74 | pinmux_enum_t end; | |
75 | pinmux_enum_t force; | |
76 | }; | |
77 | ||
78 | struct pinmux_info { | |
79 | char *name; | |
80 | pinmux_enum_t reserved_id; | |
81 | struct pinmux_range data; | |
82 | struct pinmux_range input; | |
83 | struct pinmux_range input_pd; | |
84 | struct pinmux_range input_pu; | |
85 | struct pinmux_range output; | |
86 | struct pinmux_range mark; | |
87 | struct pinmux_range function; | |
88 | ||
89 | unsigned first_gpio, last_gpio; | |
90 | ||
91 | struct pinmux_gpio *gpios; | |
92 | struct pinmux_cfg_reg *cfg_regs; | |
93 | struct pinmux_data_reg *data_regs; | |
94 | ||
95 | pinmux_enum_t *gpio_data; | |
96 | unsigned int gpio_data_size; | |
97 | ||
ad2a8e7e MD |
98 | struct pinmux_irq *gpio_irq; |
99 | unsigned int gpio_irq_size; | |
100 | ||
fae43399 MD |
101 | struct gpio_chip chip; |
102 | }; | |
103 | ||
104 | int register_pinmux(struct pinmux_info *pip); | |
b72421d8 | 105 | int unregister_pinmux(struct pinmux_info *pip); |
fae43399 | 106 | |
972c3fb6 KM |
107 | /* helper macro for port */ |
108 | #define PORT_1(fn, pfx, sfx) fn(pfx, sfx) | |
109 | ||
110 | #define PORT_10(fn, pfx, sfx) \ | |
111 | PORT_1(fn, pfx##0, sfx), PORT_1(fn, pfx##1, sfx), \ | |
112 | PORT_1(fn, pfx##2, sfx), PORT_1(fn, pfx##3, sfx), \ | |
113 | PORT_1(fn, pfx##4, sfx), PORT_1(fn, pfx##5, sfx), \ | |
114 | PORT_1(fn, pfx##6, sfx), PORT_1(fn, pfx##7, sfx), \ | |
115 | PORT_1(fn, pfx##8, sfx), PORT_1(fn, pfx##9, sfx) | |
116 | ||
117 | #define PORT_90(fn, pfx, sfx) \ | |
118 | PORT_10(fn, pfx##1, sfx), PORT_10(fn, pfx##2, sfx), \ | |
119 | PORT_10(fn, pfx##3, sfx), PORT_10(fn, pfx##4, sfx), \ | |
120 | PORT_10(fn, pfx##5, sfx), PORT_10(fn, pfx##6, sfx), \ | |
121 | PORT_10(fn, pfx##7, sfx), PORT_10(fn, pfx##8, sfx), \ | |
122 | PORT_10(fn, pfx##9, sfx) | |
123 | ||
124 | #define _PORT_ALL(pfx, sfx) pfx##_##sfx | |
125 | #define _GPIO_PORT(pfx, sfx) PINMUX_GPIO(GPIO_PORT##pfx, PORT##pfx##_DATA) | |
126 | #define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str) | |
127 | #define GPIO_PORT_ALL() CPU_ALL_PORT(_GPIO_PORT, , unused) | |
128 | #define GPIO_FN(str) PINMUX_GPIO(GPIO_FN_##str, str##_MARK) | |
129 | ||
bd8d0cba KM |
130 | /* helper macro for pinmux_enum_t */ |
131 | #define PORT_DATA_I(nr) \ | |
132 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_IN) | |
133 | ||
134 | #define PORT_DATA_I_PD(nr) \ | |
135 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
136 | PORT##nr##_IN, PORT##nr##_IN_PD) | |
137 | ||
138 | #define PORT_DATA_I_PU(nr) \ | |
139 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
140 | PORT##nr##_IN, PORT##nr##_IN_PU) | |
141 | ||
142 | #define PORT_DATA_I_PU_PD(nr) \ | |
143 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
144 | PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) | |
145 | ||
146 | #define PORT_DATA_O(nr) \ | |
147 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT) | |
148 | ||
149 | #define PORT_DATA_IO(nr) \ | |
150 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
151 | PORT##nr##_IN) | |
152 | ||
153 | #define PORT_DATA_IO_PD(nr) \ | |
154 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
155 | PORT##nr##_IN, PORT##nr##_IN_PD) | |
156 | ||
157 | #define PORT_DATA_IO_PU(nr) \ | |
158 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
159 | PORT##nr##_IN, PORT##nr##_IN_PU) | |
160 | ||
161 | #define PORT_DATA_IO_PU_PD(nr) \ | |
162 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
163 | PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) | |
164 | ||
9b49139b KM |
165 | /* helper macro for top 4 bits in PORTnCR */ |
166 | #define _PCRH(in, in_pd, in_pu, out) \ | |
167 | 0, (out), (in), 0, \ | |
168 | 0, 0, 0, 0, \ | |
169 | 0, 0, (in_pd), 0, \ | |
170 | 0, 0, (in_pu), 0 | |
171 | ||
172 | #define PORTCR(nr, reg) \ | |
173 | { \ | |
174 | PINMUX_CFG_REG("PORT" nr "CR", reg, 8, 4) { \ | |
175 | _PCRH(PORT##nr##_IN, PORT##nr##_IN_PD, \ | |
176 | PORT##nr##_IN_PU, PORT##nr##_OUT), \ | |
177 | PORT##nr##_FN0, PORT##nr##_FN1, \ | |
178 | PORT##nr##_FN2, PORT##nr##_FN3, \ | |
179 | PORT##nr##_FN4, PORT##nr##_FN5, \ | |
180 | PORT##nr##_FN6, PORT##nr##_FN7 } \ | |
181 | } | |
bd8d0cba | 182 | |
fae43399 | 183 | #endif /* __SH_PFC_H */ |