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/*
* Copyright (C) ST-Ericsson SA 2010
*
* License terms: GNU General Public License, version 2
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
*
* Based on arch/arm/mach-pxa/include/mach/mfp.h:
* Copyright (C) 2007 Marvell International Ltd.
* eric miao <eric.miao@marvell.com>
*/
#ifndef __PLAT_PINCFG_H
#define __PLAT_PINCFG_H
/*
* pin configurations are represented by 32-bit integers:
*
* bit 0.. 8 - Pin Number (512 Pins Maximum)
* bit 9..10 - Alternate Function Selection
* bit 11..12 - Pull up/down state
* bit 13 - Sleep mode behaviour
*
* to facilitate the definition, the following macros are provided
*
* PIN_CFG_DEFAULT - default config (0):
* pull up/down = disabled
* sleep mode = input
*
* PIN_CFG - default config with alternate function
* PIN_CFG_PULL - default config with alternate function and pull up/down
*/
typedef unsigned long pin_cfg_t;
#define PIN_NUM_MASK 0x1ff
#define PIN_NUM(x) ((x) & PIN_NUM_MASK)
#define PIN_ALT_SHIFT 9
#define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT)
#define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT)
#define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT)
#define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT)
#define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT)
#define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT)
#define PIN_PULL_SHIFT 11
#define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT)
#define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT)
#define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT)
#define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT)
#define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT)
#define PIN_SLPM_SHIFT 13
#define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT)
#define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT)
#define PIN_SLPM_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT)
#define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT)
#define PIN_CFG_DEFAULT (PIN_PULL_NONE | PIN_SLPM_INPUT)
#define PIN_CFG(num, alt) \
(PIN_CFG_DEFAULT |\
(PIN_NUM(num) | PIN_##alt))
#define PIN_CFG_PULL(num, alt, pull) \
((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\
(PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull))
extern int nmk_config_pin(pin_cfg_t cfg);
extern int nmk_config_pins(pin_cfg_t *cfgs, int num);
#endif
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