2 * arch/arm/plat-omap/include/mach/gpio.h
4 * OMAP GPIO handling defines and functions
6 * Copyright (C) 2003-2005 Nokia Corporation
8 * Written by Juha Yrjölä <juha.yrjola@nokia.com>
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.
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.
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
26 #ifndef __ASM_ARCH_OMAP_GPIO_H
27 #define __ASM_ARCH_OMAP_GPIO_H
30 #include <linux/platform_device.h>
31 #include <mach/irqs.h>
33 #define OMAP1_MPUIO_BASE 0xfffb5000
35 #if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850))
37 #define OMAP_MPUIO_INPUT_LATCH 0x00
38 #define OMAP_MPUIO_OUTPUT 0x02
39 #define OMAP_MPUIO_IO_CNTL 0x04
40 #define OMAP_MPUIO_KBR_LATCH 0x08
41 #define OMAP_MPUIO_KBC 0x0a
42 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x0c
43 #define OMAP_MPUIO_GPIO_INT_EDGE 0x0e
44 #define OMAP_MPUIO_KBD_INT 0x10
45 #define OMAP_MPUIO_GPIO_INT 0x12
46 #define OMAP_MPUIO_KBD_MASKIT 0x14
47 #define OMAP_MPUIO_GPIO_MASKIT 0x16
48 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x18
49 #define OMAP_MPUIO_LATCH 0x1a
51 #define OMAP_MPUIO_INPUT_LATCH 0x00
52 #define OMAP_MPUIO_OUTPUT 0x04
53 #define OMAP_MPUIO_IO_CNTL 0x08
54 #define OMAP_MPUIO_KBR_LATCH 0x10
55 #define OMAP_MPUIO_KBC 0x14
56 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18
57 #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c
58 #define OMAP_MPUIO_KBD_INT 0x20
59 #define OMAP_MPUIO_GPIO_INT 0x24
60 #define OMAP_MPUIO_KBD_MASKIT 0x28
61 #define OMAP_MPUIO_GPIO_MASKIT 0x2c
62 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30
63 #define OMAP_MPUIO_LATCH 0x34
66 #define OMAP34XX_NR_GPIOS 6
68 #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr))
69 #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES)
71 #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \
72 IH_MPUIO_BASE + ((nr) & 0x0f) : \
75 #define METHOD_MPUIO 0
76 #define METHOD_GPIO_1510 1
77 #define METHOD_GPIO_1610 2
78 #define METHOD_GPIO_7XX 3
79 #define METHOD_GPIO_24XX 5
80 #define METHOD_GPIO_44XX 6
82 struct omap_gpio_dev_attr {
83 int bank_width; /* GPIO bank width */
84 bool dbck_flag; /* dbck required or not - True for OMAP3&4 */
87 struct omap_gpio_platform_data {
88 u16 virtual_irq_start;
90 int bank_width; /* GPIO bank width */
91 bool dbck_flag; /* dbck required or not - True for OMAP3&4 */
94 /* TODO: Analyze removing gpio_bank_count usage from driver code */
95 extern int gpio_bank_count;
97 extern void omap2_gpio_prepare_for_idle(int power_state);
98 extern void omap2_gpio_resume_after_idle(void);
99 extern void omap_set_gpio_debounce(int gpio, int enable);
100 extern void omap_set_gpio_debounce_time(int gpio, int enable);
101 extern void omap_gpio_save_context(void);
102 extern void omap_gpio_restore_context(void);
103 /*-------------------------------------------------------------------------*/
105 /* Wrappers for "new style" GPIO calls, using the new infrastructure
106 * which lets us plug in FPGA, I2C, and other implementations.
108 * The original OMAP-specfic calls should eventually be removed.
111 #include <linux/errno.h>
112 #include <asm-generic/gpio.h>
114 static inline int gpio_get_value(unsigned gpio)
116 return __gpio_get_value(gpio);
119 static inline void gpio_set_value(unsigned gpio, int value)
121 __gpio_set_value(gpio, value);
124 static inline int gpio_cansleep(unsigned gpio)
126 return __gpio_cansleep(gpio);
129 static inline int gpio_to_irq(unsigned gpio)
131 return __gpio_to_irq(gpio);
134 static inline int irq_to_gpio(unsigned irq)
138 /* omap1 SOC mpuio */
139 if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16)))
140 return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES;
143 tmp = irq - IH_GPIO_BASE;
144 if (tmp < OMAP_MAX_GPIO_LINES)
147 /* we don't supply reverse mappings for non-SOC gpios */