arch/arm/plat-omap/include/plat/gpio.h - maze/linux - Git at Google

 /*
  * arch/arm/plat-omap/include/mach/gpio.h
  *
  * OMAP GPIO handling defines and functions
  *
  * Copyright (C) 2003-2005 Nokia Corporation
  *
  * Written by Juha Yrjölä <juha.yrjola@nokia.com>
  *
  * 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 <linux/io.h>
 #include <linux/platform_device.h>
 #include <mach/irqs.h>

 #define OMAP1_MPUIO_BASE			0xfffb5000

 /*
  * These are the omap15xx/16xx offsets. The omap7xx offset are
  * OMAP_MPUIO_ / 2 offsets below.
  */
 #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

 #define OMAP34XX_NR_GPIOS		6

 /*
  * OMAP1510 GPIO registers
  */
 #define OMAP1510_GPIO_DATA_INPUT	0x00
 #define OMAP1510_GPIO_DATA_OUTPUT	0x04
 #define OMAP1510_GPIO_DIR_CONTROL	0x08
 #define OMAP1510_GPIO_INT_CONTROL	0x0c
 #define OMAP1510_GPIO_INT_MASK		0x10
 #define OMAP1510_GPIO_INT_STATUS	0x14
 #define OMAP1510_GPIO_PIN_CONTROL	0x18

 #define OMAP1510_IH_GPIO_BASE		64

 /*
  * OMAP1610 specific GPIO registers
  */
 #define OMAP1610_GPIO_REVISION		0x0000
 #define OMAP1610_GPIO_SYSCONFIG		0x0010
 #define OMAP1610_GPIO_SYSSTATUS		0x0014
 #define OMAP1610_GPIO_IRQSTATUS1	0x0018
 #define OMAP1610_GPIO_IRQENABLE1	0x001c
 #define OMAP1610_GPIO_WAKEUPENABLE	0x0028
 #define OMAP1610_GPIO_DATAIN		0x002c
 #define OMAP1610_GPIO_DATAOUT		0x0030
 #define OMAP1610_GPIO_DIRECTION		0x0034
 #define OMAP1610_GPIO_EDGE_CTRL1	0x0038
 #define OMAP1610_GPIO_EDGE_CTRL2	0x003c
 #define OMAP1610_GPIO_CLEAR_IRQENABLE1	0x009c
 #define OMAP1610_GPIO_CLEAR_WAKEUPENA	0x00a8
 #define OMAP1610_GPIO_CLEAR_DATAOUT	0x00b0
 #define OMAP1610_GPIO_SET_IRQENABLE1	0x00dc
 #define OMAP1610_GPIO_SET_WAKEUPENA	0x00e8
 #define OMAP1610_GPIO_SET_DATAOUT	0x00f0

 /*
  * OMAP7XX specific GPIO registers
  */
 #define OMAP7XX_GPIO_DATA_INPUT		0x00
 #define OMAP7XX_GPIO_DATA_OUTPUT	0x04
 #define OMAP7XX_GPIO_DIR_CONTROL	0x08
 #define OMAP7XX_GPIO_INT_CONTROL	0x0c
 #define OMAP7XX_GPIO_INT_MASK		0x10
 #define OMAP7XX_GPIO_INT_STATUS		0x14

 /*
  * omap2+ specific GPIO registers
  */
 #define OMAP24XX_GPIO_REVISION		0x0000
 #define OMAP24XX_GPIO_IRQSTATUS1	0x0018
 #define OMAP24XX_GPIO_IRQSTATUS2	0x0028
 #define OMAP24XX_GPIO_IRQENABLE2	0x002c
 #define OMAP24XX_GPIO_IRQENABLE1	0x001c
 #define OMAP24XX_GPIO_WAKE_EN		0x0020
 #define OMAP24XX_GPIO_CTRL		0x0030
 #define OMAP24XX_GPIO_OE		0x0034
 #define OMAP24XX_GPIO_DATAIN		0x0038
 #define OMAP24XX_GPIO_DATAOUT		0x003c
 #define OMAP24XX_GPIO_LEVELDETECT0	0x0040
 #define OMAP24XX_GPIO_LEVELDETECT1	0x0044
 #define OMAP24XX_GPIO_RISINGDETECT	0x0048
 #define OMAP24XX_GPIO_FALLINGDETECT	0x004c
 #define OMAP24XX_GPIO_DEBOUNCE_EN	0x0050
 #define OMAP24XX_GPIO_DEBOUNCE_VAL	0x0054
 #define OMAP24XX_GPIO_CLEARIRQENABLE1	0x0060
 #define OMAP24XX_GPIO_SETIRQENABLE1	0x0064
 #define OMAP24XX_GPIO_CLEARWKUENA	0x0080
 #define OMAP24XX_GPIO_SETWKUENA		0x0084
 #define OMAP24XX_GPIO_CLEARDATAOUT	0x0090
 #define OMAP24XX_GPIO_SETDATAOUT	0x0094

 #define OMAP4_GPIO_REVISION		0x0000
 #define OMAP4_GPIO_EOI			0x0020
 #define OMAP4_GPIO_IRQSTATUSRAW0	0x0024
 #define OMAP4_GPIO_IRQSTATUSRAW1	0x0028
 #define OMAP4_GPIO_IRQSTATUS0		0x002c
 #define OMAP4_GPIO_IRQSTATUS1		0x0030
 #define OMAP4_GPIO_IRQSTATUSSET0	0x0034
 #define OMAP4_GPIO_IRQSTATUSSET1	0x0038
 #define OMAP4_GPIO_IRQSTATUSCLR0	0x003c
 #define OMAP4_GPIO_IRQSTATUSCLR1	0x0040
 #define OMAP4_GPIO_IRQWAKEN0		0x0044
 #define OMAP4_GPIO_IRQWAKEN1		0x0048
 #define OMAP4_GPIO_IRQENABLE1		0x011c
 #define OMAP4_GPIO_WAKE_EN		0x0120
 #define OMAP4_GPIO_IRQSTATUS2		0x0128
 #define OMAP4_GPIO_IRQENABLE2		0x012c
 #define OMAP4_GPIO_CTRL			0x0130
 #define OMAP4_GPIO_OE			0x0134
 #define OMAP4_GPIO_DATAIN		0x0138
 #define OMAP4_GPIO_DATAOUT		0x013c
 #define OMAP4_GPIO_LEVELDETECT0		0x0140
 #define OMAP4_GPIO_LEVELDETECT1		0x0144
 #define OMAP4_GPIO_RISINGDETECT		0x0148
 #define OMAP4_GPIO_FALLINGDETECT	0x014c
 #define OMAP4_GPIO_DEBOUNCENABLE	0x0150
 #define OMAP4_GPIO_DEBOUNCINGTIME	0x0154
 #define OMAP4_GPIO_CLEARIRQENABLE1	0x0160
 #define OMAP4_GPIO_SETIRQENABLE1	0x0164
 #define OMAP4_GPIO_CLEARWKUENA		0x0180
 #define OMAP4_GPIO_SETWKUENA		0x0184
 #define OMAP4_GPIO_CLEARDATAOUT		0x0190
 #define OMAP4_GPIO_SETDATAOUT		0x0194

 #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_reg_offs {
 	u16 revision;
 	u16 direction;
 	u16 datain;
 	u16 dataout;
 	u16 set_dataout;
 	u16 clr_dataout;
 	u16 irqstatus;
 	u16 irqstatus2;
 	u16 irqenable;
 	u16 set_irqenable;
 	u16 clr_irqenable;
 	u16 debounce;
 	u16 debounce_en;

 	bool irqenable_inv;
 };

 struct omap_gpio_platform_data {
 	u16 virtual_irq_start;
 	int bank_type;
 	int bank_width;		/* GPIO bank width */
 	int bank_stride;	/* Only needed for omap1 MPUIO */
 	bool dbck_flag;		/* dbck required or not - True for OMAP3&4 */

 	struct omap_gpio_reg_offs *regs;
 };

 /* TODO: Analyze removing gpio_bank_count usage from driver code */
 extern int gpio_bank_count;

 extern void omap2_gpio_prepare_for_idle(int off_mode);
 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-specific calls should eventually be removed.
  */

 #include <linux/errno.h>
 #include <asm-generic/gpio.h>

 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
	/*
	* arch/arm/plat-omap/include/mach/gpio.h
	*
	* OMAP GPIO handling defines and functions
	*
	* Copyright (C) 2003-2005 Nokia Corporation
	*
	* Written by Juha Yrjölä <juha.yrjola@nokia.com>
	*
	* 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 <linux/io.h>
	#include <linux/platform_device.h>
	#include <mach/irqs.h>

	#define OMAP1_MPUIO_BASE 0xfffb5000

	/*
	* These are the omap15xx/16xx offsets. The omap7xx offset are
	* OMAP_MPUIO_ / 2 offsets below.
	*/
	#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

	#define OMAP34XX_NR_GPIOS 6

	/*
	* OMAP1510 GPIO registers
	*/
	#define OMAP1510_GPIO_DATA_INPUT 0x00
	#define OMAP1510_GPIO_DATA_OUTPUT 0x04
	#define OMAP1510_GPIO_DIR_CONTROL 0x08
	#define OMAP1510_GPIO_INT_CONTROL 0x0c
	#define OMAP1510_GPIO_INT_MASK 0x10
	#define OMAP1510_GPIO_INT_STATUS 0x14
	#define OMAP1510_GPIO_PIN_CONTROL 0x18

	#define OMAP1510_IH_GPIO_BASE 64

	/*
	* OMAP1610 specific GPIO registers
	*/
	#define OMAP1610_GPIO_REVISION 0x0000
	#define OMAP1610_GPIO_SYSCONFIG 0x0010
	#define OMAP1610_GPIO_SYSSTATUS 0x0014
	#define OMAP1610_GPIO_IRQSTATUS1 0x0018
	#define OMAP1610_GPIO_IRQENABLE1 0x001c
	#define OMAP1610_GPIO_WAKEUPENABLE 0x0028
	#define OMAP1610_GPIO_DATAIN 0x002c
	#define OMAP1610_GPIO_DATAOUT 0x0030
	#define OMAP1610_GPIO_DIRECTION 0x0034
	#define OMAP1610_GPIO_EDGE_CTRL1 0x0038
	#define OMAP1610_GPIO_EDGE_CTRL2 0x003c
	#define OMAP1610_GPIO_CLEAR_IRQENABLE1 0x009c
	#define OMAP1610_GPIO_CLEAR_WAKEUPENA 0x00a8
	#define OMAP1610_GPIO_CLEAR_DATAOUT 0x00b0
	#define OMAP1610_GPIO_SET_IRQENABLE1 0x00dc
	#define OMAP1610_GPIO_SET_WAKEUPENA 0x00e8
	#define OMAP1610_GPIO_SET_DATAOUT 0x00f0

	/*
	* OMAP7XX specific GPIO registers
	*/
	#define OMAP7XX_GPIO_DATA_INPUT 0x00
	#define OMAP7XX_GPIO_DATA_OUTPUT 0x04
	#define OMAP7XX_GPIO_DIR_CONTROL 0x08
	#define OMAP7XX_GPIO_INT_CONTROL 0x0c
	#define OMAP7XX_GPIO_INT_MASK 0x10
	#define OMAP7XX_GPIO_INT_STATUS 0x14

	/*
	* omap2+ specific GPIO registers
	*/
	#define OMAP24XX_GPIO_REVISION 0x0000
	#define OMAP24XX_GPIO_IRQSTATUS1 0x0018
	#define OMAP24XX_GPIO_IRQSTATUS2 0x0028
	#define OMAP24XX_GPIO_IRQENABLE2 0x002c
	#define OMAP24XX_GPIO_IRQENABLE1 0x001c
	#define OMAP24XX_GPIO_WAKE_EN 0x0020
	#define OMAP24XX_GPIO_CTRL 0x0030
	#define OMAP24XX_GPIO_OE 0x0034
	#define OMAP24XX_GPIO_DATAIN 0x0038
	#define OMAP24XX_GPIO_DATAOUT 0x003c
	#define OMAP24XX_GPIO_LEVELDETECT0 0x0040
	#define OMAP24XX_GPIO_LEVELDETECT1 0x0044
	#define OMAP24XX_GPIO_RISINGDETECT 0x0048
	#define OMAP24XX_GPIO_FALLINGDETECT 0x004c
	#define OMAP24XX_GPIO_DEBOUNCE_EN 0x0050
	#define OMAP24XX_GPIO_DEBOUNCE_VAL 0x0054
	#define OMAP24XX_GPIO_CLEARIRQENABLE1 0x0060
	#define OMAP24XX_GPIO_SETIRQENABLE1 0x0064
	#define OMAP24XX_GPIO_CLEARWKUENA 0x0080
	#define OMAP24XX_GPIO_SETWKUENA 0x0084
	#define OMAP24XX_GPIO_CLEARDATAOUT 0x0090
	#define OMAP24XX_GPIO_SETDATAOUT 0x0094

	#define OMAP4_GPIO_REVISION 0x0000
	#define OMAP4_GPIO_EOI 0x0020
	#define OMAP4_GPIO_IRQSTATUSRAW0 0x0024
	#define OMAP4_GPIO_IRQSTATUSRAW1 0x0028
	#define OMAP4_GPIO_IRQSTATUS0 0x002c
	#define OMAP4_GPIO_IRQSTATUS1 0x0030
	#define OMAP4_GPIO_IRQSTATUSSET0 0x0034
	#define OMAP4_GPIO_IRQSTATUSSET1 0x0038
	#define OMAP4_GPIO_IRQSTATUSCLR0 0x003c
	#define OMAP4_GPIO_IRQSTATUSCLR1 0x0040
	#define OMAP4_GPIO_IRQWAKEN0 0x0044
	#define OMAP4_GPIO_IRQWAKEN1 0x0048
	#define OMAP4_GPIO_IRQENABLE1 0x011c
	#define OMAP4_GPIO_WAKE_EN 0x0120
	#define OMAP4_GPIO_IRQSTATUS2 0x0128
	#define OMAP4_GPIO_IRQENABLE2 0x012c
	#define OMAP4_GPIO_CTRL 0x0130
	#define OMAP4_GPIO_OE 0x0134
	#define OMAP4_GPIO_DATAIN 0x0138
	#define OMAP4_GPIO_DATAOUT 0x013c
	#define OMAP4_GPIO_LEVELDETECT0 0x0140
	#define OMAP4_GPIO_LEVELDETECT1 0x0144
	#define OMAP4_GPIO_RISINGDETECT 0x0148
	#define OMAP4_GPIO_FALLINGDETECT 0x014c
	#define OMAP4_GPIO_DEBOUNCENABLE 0x0150
	#define OMAP4_GPIO_DEBOUNCINGTIME 0x0154
	#define OMAP4_GPIO_CLEARIRQENABLE1 0x0160
	#define OMAP4_GPIO_SETIRQENABLE1 0x0164
	#define OMAP4_GPIO_CLEARWKUENA 0x0180
	#define OMAP4_GPIO_SETWKUENA 0x0184
	#define OMAP4_GPIO_CLEARDATAOUT 0x0190
	#define OMAP4_GPIO_SETDATAOUT 0x0194

	#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_reg_offs {
	u16 revision;
	u16 direction;
	u16 datain;
	u16 dataout;
	u16 set_dataout;
	u16 clr_dataout;
	u16 irqstatus;
	u16 irqstatus2;
	u16 irqenable;
	u16 set_irqenable;
	u16 clr_irqenable;
	u16 debounce;
	u16 debounce_en;

	bool irqenable_inv;
	};

	struct omap_gpio_platform_data {
	u16 virtual_irq_start;
	int bank_type;
	int bank_width; /* GPIO bank width */
	int bank_stride; /* Only needed for omap1 MPUIO */
	bool dbck_flag; /* dbck required or not - True for OMAP3&4 */

	struct omap_gpio_reg_offs *regs;
	};

	/* TODO: Analyze removing gpio_bank_count usage from driver code */
	extern int gpio_bank_count;

	extern void omap2_gpio_prepare_for_idle(int off_mode);
	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-specific calls should eventually be removed.
	*/

	#include <linux/errno.h>
	#include <asm-generic/gpio.h>

	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