/* * arch/arm/plat-omap/include/mach/gpio.h * * OMAP GPIO handling defines and functions * * Copyright (C) 2003-2005 Nokia Corporation * * Written by Juha Yrjölä * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #ifndef __ASM_ARCH_OMAP_GPIO_H #define __ASM_ARCH_OMAP_GPIO_H #include #include #include #define OMAP1_MPUIO_BASE 0xfffb5000 #if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)) #define OMAP_MPUIO_INPUT_LATCH 0x00 #define OMAP_MPUIO_OUTPUT 0x02 #define OMAP_MPUIO_IO_CNTL 0x04 #define OMAP_MPUIO_KBR_LATCH 0x08 #define OMAP_MPUIO_KBC 0x0a #define OMAP_MPUIO_GPIO_EVENT_MODE 0x0c #define OMAP_MPUIO_GPIO_INT_EDGE 0x0e #define OMAP_MPUIO_KBD_INT 0x10 #define OMAP_MPUIO_GPIO_INT 0x12 #define OMAP_MPUIO_KBD_MASKIT 0x14 #define OMAP_MPUIO_GPIO_MASKIT 0x16 #define OMAP_MPUIO_GPIO_DEBOUNCING 0x18 #define OMAP_MPUIO_LATCH 0x1a #else #define OMAP_MPUIO_INPUT_LATCH 0x00 #define OMAP_MPUIO_OUTPUT 0x04 #define OMAP_MPUIO_IO_CNTL 0x08 #define OMAP_MPUIO_KBR_LATCH 0x10 #define OMAP_MPUIO_KBC 0x14 #define OMAP_MPUIO_GPIO_EVENT_MODE 0x18 #define OMAP_MPUIO_GPIO_INT_EDGE 0x1c #define OMAP_MPUIO_KBD_INT 0x20 #define OMAP_MPUIO_GPIO_INT 0x24 #define OMAP_MPUIO_KBD_MASKIT 0x28 #define OMAP_MPUIO_GPIO_MASKIT 0x2c #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 #define OMAP_MPUIO_LATCH 0x34 #endif #define OMAP34XX_NR_GPIOS 6 #define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr)) #define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES) #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ IH_MPUIO_BASE + ((nr) & 0x0f) : \ IH_GPIO_BASE + (nr)) #define METHOD_MPUIO 0 #define METHOD_GPIO_1510 1 #define METHOD_GPIO_1610 2 #define METHOD_GPIO_7XX 3 #define METHOD_GPIO_24XX 5 #define METHOD_GPIO_44XX 6 struct omap_gpio_dev_attr { int bank_width; /* GPIO bank width */ bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ }; struct omap_gpio_platform_data { u16 virtual_irq_start; int bank_type; int bank_width; /* GPIO bank width */ bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ }; /* TODO: Analyze removing gpio_bank_count usage from driver code */ extern int gpio_bank_count; extern void omap2_gpio_prepare_for_idle(int power_state); extern void omap2_gpio_resume_after_idle(void); extern void omap_set_gpio_debounce(int gpio, int enable); extern void omap_set_gpio_debounce_time(int gpio, int enable); extern void omap_gpio_save_context(void); extern void omap_gpio_restore_context(void); /*-------------------------------------------------------------------------*/ /* Wrappers for "new style" GPIO calls, using the new infrastructure * which lets us plug in FPGA, I2C, and other implementations. * * * The original OMAP-specfic calls should eventually be removed. */ #include #include static inline int gpio_get_value(unsigned gpio) { return __gpio_get_value(gpio); } static inline void gpio_set_value(unsigned gpio, int value) { __gpio_set_value(gpio, value); } static inline int gpio_cansleep(unsigned gpio) { return __gpio_cansleep(gpio); } static inline int gpio_to_irq(unsigned gpio) { return __gpio_to_irq(gpio); } static inline int irq_to_gpio(unsigned irq) { int tmp; /* omap1 SOC mpuio */ if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16))) return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES; /* SOC gpio */ tmp = irq - IH_GPIO_BASE; if (tmp < OMAP_MAX_GPIO_LINES) return tmp; /* we don't supply reverse mappings for non-SOC gpios */ return -EIO; } #endif