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Diffstat (limited to 'arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h')
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h deleted file mode 100644 index 652e2bbdaa20..000000000000 --- a/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h +++ /dev/null @@ -1,176 +0,0 @@ -/* linux/arch/arm/plat-s3c/include/plat/gpio-cfg-helper.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C Platform - GPIO pin configuration helper definitions - * - * 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. -*/ - -/* This is meant for core cpu support, machine or other driver files - * should not be including this header. - */ - -#ifndef __PLAT_GPIO_CFG_HELPERS_H -#define __PLAT_GPIO_CFG_HELPERS_H __FILE__ - -/* As a note, all gpio configuration functions are entered exclusively, either - * with the relevant lock held or the system prevented from doing anything else - * by disabling interrupts. -*/ - -static inline int s3c_gpio_do_setcfg(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int config) -{ - return (chip->config->set_config)(chip, off, config); -} - -static inline int s3c_gpio_do_setpull(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull) -{ - return (chip->config->set_pull)(chip, off, pull); -} - -/** - * s3c_gpio_setcfg_s3c24xx - S3C24XX style GPIO configuration. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register - * has two bits of configuration per gpio, which have the following - * functions: - * 00 = input - * 01 = output - * 1x = special function -*/ -extern int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - -/** - * s3c_gpio_setcfg_s3c24xx_a - S3C24XX style GPIO configuration (Bank A) - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register - * has one bit of configuration for the gpio, where setting the bit - * means the pin is in special function mode and unset means output. -*/ -extern int s3c_gpio_setcfg_s3c24xx_a(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - -/** - * s3c_gpio_setcfg_s3c64xx_4bit - S3C64XX 4bit single register GPIO config. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register has 4 bits - * of control per GPIO, generally in the form of: - * 0000 = Input - * 0001 = Output - * others = Special functions (dependant on bank) - * - * Note, since the code to deal with the case where there are two control - * registers instead of one, we do not have a seperate set of functions for - * each case. -*/ -extern int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - - -/* Pull-{up,down} resistor controls. - * - * S3C2410,S3C2440,S3C24A0 = Pull-UP, - * S3C2412,S3C2413 = Pull-Down - * S3C6400,S3C6410 = Pull-Both [None,Down,Up,Undef] - * S3C2443 = Pull-Both [not same as S3C6400] - */ - -/** - * s3c_gpio_setpull_1up() - Pull configuration for choice of up or none. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @param: pull: The pull mode being requested. - * - * This is a helper function for the case where we have GPIOs with one - * bit configuring the presence of a pull-up resistor. - */ -extern int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); - -/** - * s3c_gpio_setpull_1down() - Pull configuration for choice of down or none - * @chip: The gpio chip that is being configured - * @off: The offset for the GPIO being configured - * @param: pull: The pull mode being requested - * - * This is a helper function for the case where we have GPIOs with one - * bit configuring the presence of a pull-down resistor. - */ -extern int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); - -/** - * s3c_gpio_setpull_upown() - Pull configuration for choice of up, down or none - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @param: pull: The pull mode being requested. - * - * This is a helper function for the case where we have GPIOs with two - * bits configuring the presence of a pull resistor, in the following - * order: - * 00 = No pull resistor connected - * 01 = Pull-up resistor connected - * 10 = Pull-down resistor connected - */ -extern int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); - - -/** - * s3c_gpio_getpull_updown() - Get configuration for choice of up, down or none - * @chip: The gpio chip that the GPIO pin belongs to - * @off: The offset to the pin to get the configuration of. - * - * This helper function reads the state of the pull-{up,down} resistor for the - * given GPIO in the same case as s3c_gpio_setpull_upown. -*/ -extern s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip, - unsigned int off); - -/** - * s3c_gpio_setpull_s3c2443() - Pull configuration for s3c2443. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @param: pull: The pull mode being requested. - * - * This is a helper function for the case where we have GPIOs with two - * bits configuring the presence of a pull resistor, in the following - * order: - * 00 = Pull-up resistor connected - * 10 = Pull-down resistor connected - * x1 = No pull up resistor - */ -extern int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); - -/** - * s3c_gpio_getpull_s3c2443() - Get configuration for s3c2443 pull resistors - * @chip: The gpio chip that the GPIO pin belongs to. - * @off: The offset to the pin to get the configuration of. - * - * This helper function reads the state of the pull-{up,down} resistor for the - * given GPIO in the same case as s3c_gpio_setpull_upown. -*/ -extern s3c_gpio_pull_t s3c_gpio_getpull_s3c24xx(struct s3c_gpio_chip *chip, - unsigned int off); - -#endif /* __PLAT_GPIO_CFG_HELPERS_H */ - |