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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 12:13:34 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 12:13:34 -0400
commited402af3c23a4804b3f8899263e8d0f97c62ab49 (patch)
tree3aa971aea57f900a3060cc0545b199ef611f4dcf /arch/sh/include/asm/gpio.h
parent096e6f673dc02a6394dc9a7d8f8735c6978f5b91 (diff)
parent40e24c403f325715f9c43b9fed2068641201ee0b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (112 commits) sh: Move SH-4 CPU headers down one more level. sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected. sh: Migrate common board headers to mach-common/. sh: Move the CPU definition headers from asm/ to cpu/. serial: sh-sci: Add support SCIF of SH7723 video: add sh_mobile_lcdc platform flags video: remove unused sh_mobile_lcdc platform data sh: remove consistent alloc cruft sh: add dynamic crash base address support sh: reduce Migo-R smc91x overruns sh: Fix up some merge damage. Fix debugfs_create_file's error checking method for arch/sh/mm/ Fix debugfs_create_dir's error checking method for arch/sh/kernel/ sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board sh: Use sh7720 GPIO on magicpanelr2 board sh: Add sh7720 pinmux code sh: Use sh7203 GPIO on rsk7203 board sh: Add sh7203 pinmux code sh: Use sh7723 GPIO on AP325RXA board sh: Add sh7723 pinmux code ...
Diffstat (limited to 'arch/sh/include/asm/gpio.h')
-rw-r--r--arch/sh/include/asm/gpio.h92
1 files changed, 90 insertions, 2 deletions
diff --git a/arch/sh/include/asm/gpio.h b/arch/sh/include/asm/gpio.h
index cf32bd2df881..9650e7c9c39e 100644
--- a/arch/sh/include/asm/gpio.h
+++ b/arch/sh/include/asm/gpio.h
@@ -1,9 +1,9 @@
1/* 1/*
2 * include/asm-sh/gpio.h 2 * include/asm-sh/gpio.h
3 * 3 *
4 * Copyright (C) 2007 Markus Brunner, Mark Jonas 4 * Generic GPIO API and pinmux table support for SuperH.
5 * 5 *
6 * Addresses for the Pin Function Controller 6 * Copyright (c) 2008 Magnus Damm
7 * 7 *
8 * This file is subject to the terms and conditions of the GNU General Public 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 9 * License. See the file "COPYING" in the main directory of this archive
@@ -16,4 +16,92 @@
16#include <cpu/gpio.h> 16#include <cpu/gpio.h>
17#endif 17#endif
18 18
19typedef unsigned short pinmux_enum_t;
20typedef unsigned char pinmux_flag_t;
21
22#define PINMUX_TYPE_NONE 0
23#define PINMUX_TYPE_FUNCTION 1
24#define PINMUX_TYPE_GPIO 2
25#define PINMUX_TYPE_OUTPUT 3
26#define PINMUX_TYPE_INPUT 4
27#define PINMUX_TYPE_INPUT_PULLUP 5
28#define PINMUX_TYPE_INPUT_PULLDOWN 6
29
30#define PINMUX_FLAG_TYPE (0x7)
31#define PINMUX_FLAG_WANT_PULLUP (1 << 3)
32#define PINMUX_FLAG_WANT_PULLDOWN (1 << 4)
33
34struct pinmux_gpio {
35 pinmux_enum_t enum_id;
36 pinmux_flag_t flags;
37};
38
39#define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark }
40#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
41
42struct pinmux_cfg_reg {
43 unsigned long reg, reg_width, field_width;
44 unsigned long *cnt;
45 pinmux_enum_t *enum_ids;
46};
47
48#define PINMUX_CFG_REG(name, r, r_width, f_width) \
49 .reg = r, .reg_width = r_width, .field_width = f_width, \
50 .cnt = (unsigned long [r_width / f_width]) {}, \
51 .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \
52
53struct pinmux_data_reg {
54 unsigned long reg, reg_width;
55 pinmux_enum_t *enum_ids;
56};
57
58#define PINMUX_DATA_REG(name, r, r_width) \
59 .reg = r, .reg_width = r_width, \
60 .enum_ids = (pinmux_enum_t [r_width]) \
61
62struct pinmux_range {
63 pinmux_enum_t begin;
64 pinmux_enum_t end;
65};
66
67struct pinmux_info {
68 char *name;
69 pinmux_enum_t reserved_id;
70 struct pinmux_range data;
71 struct pinmux_range input;
72 struct pinmux_range input_pd;
73 struct pinmux_range input_pu;
74 struct pinmux_range output;
75 struct pinmux_range mark;
76 struct pinmux_range function;
77
78 unsigned first_gpio, last_gpio;
79
80 struct pinmux_gpio *gpios;
81 struct pinmux_cfg_reg *cfg_regs;
82 struct pinmux_data_reg *data_regs;
83
84 pinmux_enum_t *gpio_data;
85 unsigned int gpio_data_size;
86
87 unsigned long *gpio_in_use;
88};
89
90int register_pinmux(struct pinmux_info *pip);
91
92int __gpio_request(unsigned gpio);
93static inline int gpio_request(unsigned gpio, const char *label)
94{
95 return __gpio_request(gpio);
96}
97void gpio_free(unsigned gpio);
98int gpio_direction_input(unsigned gpio);
99int gpio_direction_output(unsigned gpio, int value);
100int gpio_get_value(unsigned gpio);
101void gpio_set_value(unsigned gpio, int value);
102static inline int gpio_export(unsigned gpio, bool direction_may_change)
103{
104 return 0;
105}
106
19#endif /* __ASM_SH_GPIO_H */ 107#endif /* __ASM_SH_GPIO_H */