Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
a09e64fb | 2 | * arch/arm/plat-omap/include/mach/gpio.h |
1da177e4 LT |
3 | * |
4 | * OMAP GPIO handling defines and functions | |
5 | * | |
9839c6b8 | 6 | * Copyright (C) 2003-2005 Nokia Corporation |
1da177e4 | 7 | * |
121e70b6 | 8 | * Written by Juha Yrjölä <juha.yrjola@nokia.com> |
1da177e4 LT |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | */ | |
25 | ||
26 | #ifndef __ASM_ARCH_OMAP_GPIO_H | |
27 | #define __ASM_ARCH_OMAP_GPIO_H | |
28 | ||
fced80c7 | 29 | #include <linux/io.h> |
c95d10bc | 30 | #include <linux/platform_device.h> |
a09e64fb | 31 | #include <mach/irqs.h> |
1da177e4 | 32 | |
6175556f | 33 | #define OMAP1_MPUIO_BASE 0xfffb5000 |
9839c6b8 | 34 | |
5de62b86 TL |
35 | /* |
36 | * These are the omap15xx/16xx offsets. The omap7xx offset are | |
37 | * OMAP_MPUIO_ / 2 offsets below. | |
38 | */ | |
1da177e4 LT |
39 | #define OMAP_MPUIO_INPUT_LATCH 0x00 |
40 | #define OMAP_MPUIO_OUTPUT 0x04 | |
41 | #define OMAP_MPUIO_IO_CNTL 0x08 | |
42 | #define OMAP_MPUIO_KBR_LATCH 0x10 | |
43 | #define OMAP_MPUIO_KBC 0x14 | |
44 | #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18 | |
45 | #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c | |
46 | #define OMAP_MPUIO_KBD_INT 0x20 | |
47 | #define OMAP_MPUIO_GPIO_INT 0x24 | |
48 | #define OMAP_MPUIO_KBD_MASKIT 0x28 | |
49 | #define OMAP_MPUIO_GPIO_MASKIT 0x2c | |
50 | #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 | |
51 | #define OMAP_MPUIO_LATCH 0x34 | |
52 | ||
5492fb1a SMK |
53 | #define OMAP34XX_NR_GPIOS 6 |
54 | ||
1da177e4 LT |
55 | #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr)) |
56 | #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES) | |
57 | ||
58 | #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ | |
59 | IH_MPUIO_BASE + ((nr) & 0x0f) : \ | |
9ad5897c | 60 | IH_GPIO_BASE + (nr)) |
1da177e4 | 61 | |
c95d10bc VC |
62 | #define METHOD_MPUIO 0 |
63 | #define METHOD_GPIO_1510 1 | |
64 | #define METHOD_GPIO_1610 2 | |
65 | #define METHOD_GPIO_7XX 3 | |
66 | #define METHOD_GPIO_24XX 5 | |
67 | #define METHOD_GPIO_44XX 6 | |
68 | ||
59c348c3 VC |
69 | struct omap_gpio_dev_attr { |
70 | int bank_width; /* GPIO bank width */ | |
71 | bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ | |
72 | }; | |
73 | ||
c95d10bc VC |
74 | struct omap_gpio_platform_data { |
75 | u16 virtual_irq_start; | |
76 | int bank_type; | |
77 | int bank_width; /* GPIO bank width */ | |
5de62b86 | 78 | int bank_stride; /* Only needed for omap1 MPUIO */ |
c95d10bc VC |
79 | bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ |
80 | }; | |
81 | ||
82 | /* TODO: Analyze removing gpio_bank_count usage from driver code */ | |
83 | extern int gpio_bank_count; | |
84 | ||
72e06d08 | 85 | extern void omap2_gpio_prepare_for_idle(int off_mode); |
43ffcd9a | 86 | extern void omap2_gpio_resume_after_idle(void); |
5eb3bb9c KH |
87 | extern void omap_set_gpio_debounce(int gpio, int enable); |
88 | extern void omap_set_gpio_debounce_time(int gpio, int enable); | |
40c670f0 RN |
89 | extern void omap_gpio_save_context(void); |
90 | extern void omap_gpio_restore_context(void); | |
3c729f1e DB |
91 | /*-------------------------------------------------------------------------*/ |
92 | ||
52e31344 DB |
93 | /* Wrappers for "new style" GPIO calls, using the new infrastructure |
94 | * which lets us plug in FPGA, I2C, and other implementations. | |
95 | * * | |
96 | * The original OMAP-specfic calls should eventually be removed. | |
3c729f1e DB |
97 | */ |
98 | ||
52e31344 DB |
99 | #include <linux/errno.h> |
100 | #include <asm-generic/gpio.h> | |
3c729f1e DB |
101 | |
102 | static inline int gpio_get_value(unsigned gpio) | |
103 | { | |
52e31344 | 104 | return __gpio_get_value(gpio); |
3c729f1e DB |
105 | } |
106 | ||
107 | static inline void gpio_set_value(unsigned gpio, int value) | |
108 | { | |
52e31344 | 109 | __gpio_set_value(gpio, value); |
3c729f1e DB |
110 | } |
111 | ||
52e31344 DB |
112 | static inline int gpio_cansleep(unsigned gpio) |
113 | { | |
114 | return __gpio_cansleep(gpio); | |
115 | } | |
3c729f1e DB |
116 | |
117 | static inline int gpio_to_irq(unsigned gpio) | |
118 | { | |
a007b709 | 119 | return __gpio_to_irq(gpio); |
3c729f1e DB |
120 | } |
121 | ||
122 | static inline int irq_to_gpio(unsigned irq) | |
123 | { | |
a007b709 DB |
124 | int tmp; |
125 | ||
126 | /* omap1 SOC mpuio */ | |
3c729f1e DB |
127 | if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16))) |
128 | return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES; | |
a007b709 DB |
129 | |
130 | /* SOC gpio */ | |
131 | tmp = irq - IH_GPIO_BASE; | |
132 | if (tmp < OMAP_MAX_GPIO_LINES) | |
133 | return tmp; | |
134 | ||
135 | /* we don't supply reverse mappings for non-SOC gpios */ | |
136 | return -EIO; | |
3c729f1e DB |
137 | } |
138 | ||
1da177e4 | 139 | #endif |