arch/arm/mach-omap2/mux.h - kernel/msm-4.19 - Gitiles

 /*
  * Copyright (C) 2009 Nokia
  * Copyright (C) 2009-2010 Texas Instruments
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */

 #include "mux2420.h"
 #include "mux2430.h"
 #include "mux34xx.h"

 #define OMAP_MUX_TERMINATOR	0xffff

 /* 34xx mux mode options for each pin. See TRM for options */
 #define OMAP_MUX_MODE0      0
 #define OMAP_MUX_MODE1      1
 #define OMAP_MUX_MODE2      2
 #define OMAP_MUX_MODE3      3
 #define OMAP_MUX_MODE4      4
 #define OMAP_MUX_MODE5      5
 #define OMAP_MUX_MODE6      6
 #define OMAP_MUX_MODE7      7

 /* 24xx/34xx mux bit defines */
 #define OMAP_PULL_ENA			(1 << 3)
 #define OMAP_PULL_UP			(1 << 4)
 #define OMAP_ALTELECTRICALSEL		(1 << 5)

 /* 34xx specific mux bit defines */
 #define OMAP_INPUT_EN			(1 << 8)
 #define OMAP_OFF_EN			(1 << 9)
 #define OMAP_OFFOUT_EN			(1 << 10)
 #define OMAP_OFFOUT_VAL			(1 << 11)
 #define OMAP_OFF_PULL_EN		(1 << 12)
 #define OMAP_OFF_PULL_UP		(1 << 13)
 #define OMAP_WAKEUP_EN			(1 << 14)

 /* Active pin states */
 #define OMAP_PIN_OUTPUT			0
 #define OMAP_PIN_INPUT			OMAP_INPUT_EN
 #define OMAP_PIN_INPUT_PULLUP		(OMAP_PULL_ENA | OMAP_INPUT_EN \
 						| OMAP_PULL_UP)
 #define OMAP_PIN_INPUT_PULLDOWN		(OMAP_PULL_ENA | OMAP_INPUT_EN)

 /* Off mode states */
 #define OMAP_PIN_OFF_NONE		0
 #define OMAP_PIN_OFF_OUTPUT_HIGH	(OMAP_OFF_EN | OMAP_OFFOUT_EN \
 						| OMAP_OFFOUT_VAL)
 #define OMAP_PIN_OFF_OUTPUT_LOW		(OMAP_OFF_EN | OMAP_OFFOUT_EN)
 #define OMAP_PIN_OFF_INPUT_PULLUP	(OMAP_OFF_EN | OMAP_OFF_PULL_EN \
 						| OMAP_OFF_PULL_UP)
 #define OMAP_PIN_OFF_INPUT_PULLDOWN	(OMAP_OFF_EN | OMAP_OFF_PULL_EN)
 #define OMAP_PIN_OFF_WAKEUPENABLE	OMAP_WAKEUP_EN

 #define OMAP_MODE_GPIO(x)	(((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE4)

 /* Flags for omapX_mux_init */
 #define OMAP_PACKAGE_MASK		0xffff
 #define OMAP_PACKAGE_CBP		6		/* 515-pin 0.40 0.50 */
 #define OMAP_PACKAGE_CUS		5		/* 423-pin 0.65 */
 #define OMAP_PACKAGE_CBB		4		/* 515-pin 0.40 0.50 */
 #define OMAP_PACKAGE_CBC		3		/* 515-pin 0.50 0.65 */
 #define OMAP_PACKAGE_ZAC		2		/* 24xx 447-pin POP */
 #define OMAP_PACKAGE_ZAF		1		/* 2420 447-pin SIP */


 #define OMAP_MUX_NR_MODES		8		/* Available modes */
 #define OMAP_MUX_NR_SIDES		2		/* Bottom & top */

 /*
  * omap_mux_init flags definition:
  *
  * OMAP_MUX_REG_8BIT: Ensure that access to padconf is done in 8 bits.
  * The default value is 16 bits.
  * OMAP_MUX_GPIO_IN_MODE3: The GPIO is selected in mode3.
  * The default is mode4.
  */
 #define OMAP_MUX_REG_8BIT		(1 << 0)
 #define OMAP_MUX_GPIO_IN_MODE3		(1 << 1)

 /**
  * struct mux_partition - contain partition related information
  * @name: name of the current partition
  * @flags: flags specific to this partition
  * @phys: physical address
  * @size: partition size
  * @base: virtual address after ioremap
  * @muxmodes: list of nodes that belong to a partition
  * @node: list node for the partitions linked list
  */
 struct omap_mux_partition {
 	const char		*name;
 	u32			flags;
 	u32			phys;
 	u32			size;
 	void __iomem		*base;
 	struct list_head	muxmodes;
 	struct list_head	node;
 };

 /**
  * struct omap_mux - data for omap mux register offset and it's value
  * @reg_offset:	mux register offset from the mux base
  * @gpio:	GPIO number
  * @muxnames:	available signal modes for a ball
  * @balls:	available balls on the package
  * @partition:	mux partition
  */
 struct omap_mux {
 	u16	reg_offset;
 	u16	gpio;
 #ifdef CONFIG_OMAP_MUX
 	char	*muxnames[OMAP_MUX_NR_MODES];
 #ifdef CONFIG_DEBUG_FS
 	char	*balls[OMAP_MUX_NR_SIDES];
 #endif
 #endif
 };

 /**
  * struct omap_ball - data for balls on omap package
  * @reg_offset:	mux register offset from the mux base
  * @balls:	available balls on the package
  */
 struct omap_ball {
 	u16	reg_offset;
 	char	*balls[OMAP_MUX_NR_SIDES];
 };

 /**
  * struct omap_board_mux - data for initializing mux registers
  * @reg_offset:	mux register offset from the mux base
  * @mux_value:	desired mux value to set
  */
 struct omap_board_mux {
 	u16	reg_offset;
 	u16	value;
 };

 #if defined(CONFIG_OMAP_MUX)

 /**
  * omap_mux_init_gpio - initialize a signal based on the GPIO number
  * @gpio:		GPIO number
  * @val:		Options for the mux register value
  */
 int omap_mux_init_gpio(int gpio, int val);

 /**
  * omap_mux_init_signal - initialize a signal based on the signal name
  * @muxname:		Mux name in mode0_name.signal_name format
  * @val:		Options for the mux register value
  */
 int omap_mux_init_signal(const char *muxname, int val);

 #else

 static inline int omap_mux_init_gpio(int gpio, int val)
 {
 	return 0;
 }
 static inline int omap_mux_init_signal(char *muxname, int val)
 {
 	return 0;
 }

 #endif

 /**
  * omap_mux_get_gpio() - get mux register value based on GPIO number
  * @gpio:		GPIO number
  *
  */
 u16 omap_mux_get_gpio(int gpio);

 /**
  * omap_mux_set_gpio() - set mux register value based on GPIO number
  * @val:		New mux register value
  * @gpio:		GPIO number
  *
  */
 void omap_mux_set_gpio(u16 val, int gpio);

 /**
  * omap_mux_get() - get a mux partition by name
  * @name:		Name of the mux partition
  *
  */
 struct omap_mux_partition *omap_mux_get(const char *name);

 /**
  * omap_mux_read() - read mux register
  * @partition:		Mux partition
  * @mux_offset:		Offset of the mux register
  *
  */
 u16 omap_mux_read(struct omap_mux_partition *p, u16 mux_offset);

 /**
  * omap_mux_write() - write mux register
  * @partition:		Mux partition
  * @val:		New mux register value
  * @mux_offset:		Offset of the mux register
  *
  * This should be only needed for dynamic remuxing of non-gpio signals.
  */
 void omap_mux_write(struct omap_mux_partition *p, u16 val, u16 mux_offset);

 /**
  * omap_mux_write_array() - write an array of mux registers
  * @partition:		Mux partition
  * @board_mux:		Array of mux registers terminated by MAP_MUX_TERMINATOR
  *
  * This should be only needed for dynamic remuxing of non-gpio signals.
  */
 void omap_mux_write_array(struct omap_mux_partition *p,
 			  struct omap_board_mux *board_mux);

 /**
  * omap2420_mux_init() - initialize mux system with board specific set
  * @board_mux:		Board specific mux table
  * @flags:		OMAP package type used for the board
  */
 int omap2420_mux_init(struct omap_board_mux *board_mux, int flags);

 /**
  * omap2430_mux_init() - initialize mux system with board specific set
  * @board_mux:		Board specific mux table
  * @flags:		OMAP package type used for the board
  */
 int omap2430_mux_init(struct omap_board_mux *board_mux, int flags);

 /**
  * omap3_mux_init() - initialize mux system with board specific set
  * @board_mux:		Board specific mux table
  * @flags:		OMAP package type used for the board
  */
 int omap3_mux_init(struct omap_board_mux *board_mux, int flags);

 /**
  * omap_mux_init - private mux init function, do not call
  */
 int omap_mux_init(const char *name, u32 flags,
 		  u32 mux_pbase, u32 mux_size,
 		  struct omap_mux *superset,
 		  struct omap_mux *package_subset,
 		  struct omap_board_mux *board_mux,
 		  struct omap_ball *package_balls);
	/*
	* Copyright (C) 2009 Nokia
	* Copyright (C) 2009-2010 Texas Instruments
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*/

	#include "mux2420.h"
	#include "mux2430.h"
	#include "mux34xx.h"

	#define OMAP_MUX_TERMINATOR 0xffff

	/* 34xx mux mode options for each pin. See TRM for options */
	#define OMAP_MUX_MODE0 0
	#define OMAP_MUX_MODE1 1
	#define OMAP_MUX_MODE2 2
	#define OMAP_MUX_MODE3 3
	#define OMAP_MUX_MODE4 4
	#define OMAP_MUX_MODE5 5
	#define OMAP_MUX_MODE6 6
	#define OMAP_MUX_MODE7 7

	/* 24xx/34xx mux bit defines */
	#define OMAP_PULL_ENA (1 << 3)
	#define OMAP_PULL_UP (1 << 4)
	#define OMAP_ALTELECTRICALSEL (1 << 5)

	/* 34xx specific mux bit defines */
	#define OMAP_INPUT_EN (1 << 8)
	#define OMAP_OFF_EN (1 << 9)
	#define OMAP_OFFOUT_EN (1 << 10)
	#define OMAP_OFFOUT_VAL (1 << 11)
	#define OMAP_OFF_PULL_EN (1 << 12)
	#define OMAP_OFF_PULL_UP (1 << 13)
	#define OMAP_WAKEUP_EN (1 << 14)

	/* Active pin states */
	#define OMAP_PIN_OUTPUT 0
	#define OMAP_PIN_INPUT OMAP_INPUT_EN
	#define OMAP_PIN_INPUT_PULLUP (OMAP_PULL_ENA \| OMAP_INPUT_EN \
	\| OMAP_PULL_UP)
	#define OMAP_PIN_INPUT_PULLDOWN (OMAP_PULL_ENA \| OMAP_INPUT_EN)

	/* Off mode states */
	#define OMAP_PIN_OFF_NONE 0
	#define OMAP_PIN_OFF_OUTPUT_HIGH (OMAP_OFF_EN \| OMAP_OFFOUT_EN \
	\| OMAP_OFFOUT_VAL)
	#define OMAP_PIN_OFF_OUTPUT_LOW (OMAP_OFF_EN \| OMAP_OFFOUT_EN)
	#define OMAP_PIN_OFF_INPUT_PULLUP (OMAP_OFF_EN \| OMAP_OFF_PULL_EN \
	\| OMAP_OFF_PULL_UP)
	#define OMAP_PIN_OFF_INPUT_PULLDOWN (OMAP_OFF_EN \| OMAP_OFF_PULL_EN)
	#define OMAP_PIN_OFF_WAKEUPENABLE OMAP_WAKEUP_EN

	#define OMAP_MODE_GPIO(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE4)

	/* Flags for omapX_mux_init */
	#define OMAP_PACKAGE_MASK 0xffff
	#define OMAP_PACKAGE_CBP 6 /* 515-pin 0.40 0.50 */
	#define OMAP_PACKAGE_CUS 5 /* 423-pin 0.65 */
	#define OMAP_PACKAGE_CBB 4 /* 515-pin 0.40 0.50 */
	#define OMAP_PACKAGE_CBC 3 /* 515-pin 0.50 0.65 */
	#define OMAP_PACKAGE_ZAC 2 /* 24xx 447-pin POP */
	#define OMAP_PACKAGE_ZAF 1 /* 2420 447-pin SIP */


	#define OMAP_MUX_NR_MODES 8 /* Available modes */
	#define OMAP_MUX_NR_SIDES 2 /* Bottom & top */

	/*
	* omap_mux_init flags definition:
	*
	* OMAP_MUX_REG_8BIT: Ensure that access to padconf is done in 8 bits.
	* The default value is 16 bits.
	* OMAP_MUX_GPIO_IN_MODE3: The GPIO is selected in mode3.
	* The default is mode4.
	*/
	#define OMAP_MUX_REG_8BIT (1 << 0)
	#define OMAP_MUX_GPIO_IN_MODE3 (1 << 1)

	/**
	* struct mux_partition - contain partition related information
	* @name: name of the current partition
	* @flags: flags specific to this partition
	* @phys: physical address
	* @size: partition size
	* @base: virtual address after ioremap
	* @muxmodes: list of nodes that belong to a partition
	* @node: list node for the partitions linked list
	*/
	struct omap_mux_partition {
	const char *name;
	u32 flags;
	u32 phys;
	u32 size;
	void __iomem *base;
	struct list_head muxmodes;
	struct list_head node;
	};

	/**
	* struct omap_mux - data for omap mux register offset and it's value
	* @reg_offset: mux register offset from the mux base
	* @gpio: GPIO number
	* @muxnames: available signal modes for a ball
	* @balls: available balls on the package
	* @partition: mux partition
	*/
	struct omap_mux {
	u16 reg_offset;
	u16 gpio;
	#ifdef CONFIG_OMAP_MUX
	char *muxnames[OMAP_MUX_NR_MODES];
	#ifdef CONFIG_DEBUG_FS
	char *balls[OMAP_MUX_NR_SIDES];
	#endif
	#endif
	};

	/**
	* struct omap_ball - data for balls on omap package
	* @reg_offset: mux register offset from the mux base
	* @balls: available balls on the package
	*/
	struct omap_ball {
	u16 reg_offset;
	char *balls[OMAP_MUX_NR_SIDES];
	};

	/**
	* struct omap_board_mux - data for initializing mux registers
	* @reg_offset: mux register offset from the mux base
	* @mux_value: desired mux value to set
	*/
	struct omap_board_mux {
	u16 reg_offset;
	u16 value;
	};

	#if defined(CONFIG_OMAP_MUX)

	/**
	* omap_mux_init_gpio - initialize a signal based on the GPIO number
	* @gpio: GPIO number
	* @val: Options for the mux register value
	*/
	int omap_mux_init_gpio(int gpio, int val);

	/**
	* omap_mux_init_signal - initialize a signal based on the signal name
	* @muxname: Mux name in mode0_name.signal_name format
	* @val: Options for the mux register value
	*/
	int omap_mux_init_signal(const char *muxname, int val);

	#else

	static inline int omap_mux_init_gpio(int gpio, int val)
	{
	return 0;
	}
	static inline int omap_mux_init_signal(char *muxname, int val)
	{
	return 0;
	}

	#endif

	/**
	* omap_mux_get_gpio() - get mux register value based on GPIO number
	* @gpio: GPIO number
	*
	*/
	u16 omap_mux_get_gpio(int gpio);

	/**
	* omap_mux_set_gpio() - set mux register value based on GPIO number
	* @val: New mux register value
	* @gpio: GPIO number
	*
	*/
	void omap_mux_set_gpio(u16 val, int gpio);

	/**
	* omap_mux_get() - get a mux partition by name
	* @name: Name of the mux partition
	*
	*/
	struct omap_mux_partition omap_mux_get(const char name);

	/**
	* omap_mux_read() - read mux register
	* @partition: Mux partition
	* @mux_offset: Offset of the mux register
	*
	*/
	u16 omap_mux_read(struct omap_mux_partition *p, u16 mux_offset);

	/**
	* omap_mux_write() - write mux register
	* @partition: Mux partition
	* @val: New mux register value
	* @mux_offset: Offset of the mux register
	*
	* This should be only needed for dynamic remuxing of non-gpio signals.
	*/
	void omap_mux_write(struct omap_mux_partition *p, u16 val, u16 mux_offset);

	/**
	* omap_mux_write_array() - write an array of mux registers
	* @partition: Mux partition
	* @board_mux: Array of mux registers terminated by MAP_MUX_TERMINATOR
	*
	* This should be only needed for dynamic remuxing of non-gpio signals.
	*/
	void omap_mux_write_array(struct omap_mux_partition *p,
	struct omap_board_mux *board_mux);

	/**
	* omap2420_mux_init() - initialize mux system with board specific set
	* @board_mux: Board specific mux table
	* @flags: OMAP package type used for the board
	*/
	int omap2420_mux_init(struct omap_board_mux *board_mux, int flags);

	/**
	* omap2430_mux_init() - initialize mux system with board specific set
	* @board_mux: Board specific mux table
	* @flags: OMAP package type used for the board
	*/
	int omap2430_mux_init(struct omap_board_mux *board_mux, int flags);

	/**
	* omap3_mux_init() - initialize mux system with board specific set
	* @board_mux: Board specific mux table
	* @flags: OMAP package type used for the board
	*/
	int omap3_mux_init(struct omap_board_mux *board_mux, int flags);

	/**
	* omap_mux_init - private mux init function, do not call
	*/
	int omap_mux_init(const char *name, u32 flags,
	u32 mux_pbase, u32 mux_size,
	struct omap_mux *superset,
	struct omap_mux *package_subset,
	struct omap_board_mux *board_mux,
	struct omap_ball *package_balls);