070276d5d0
Prepare to remove the large number of S3C2410_GPxn defines
by moving to S3C2410_GPx(n) in arch/arm.
The following perl was used to change the files:
perl -pi~ -e 's/S3C2410_GP([A-Z])([0-9]+)([^_^0-9])/S3C2410_GP\1\(\2\)\3/g'
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/* arch/arm/mach-s3c2410/include/mach/gpio-fns.h
|
|
*
|
|
* Copyright (c) 2003,2009 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* S3C2410 - hardware
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* These functions are in the to-be-removed category and it is strongly
|
|
* encouraged not to use these in new code. They will be marked deprecated
|
|
* very soon.
|
|
*
|
|
* Most of the functionality can be either replaced by the gpiocfg calls
|
|
* for the s3c platform or by the generic GPIOlib API.
|
|
*/
|
|
|
|
/* external functions for GPIO support
|
|
*
|
|
* These allow various different clients to access the same GPIO
|
|
* registers without conflicting. If your driver only owns the entire
|
|
* GPIO register, then it is safe to ioremap/__raw_{read|write} to it.
|
|
*/
|
|
|
|
/* s3c2410_gpio_cfgpin
|
|
*
|
|
* set the configuration of the given pin to the value passed.
|
|
*
|
|
* eg:
|
|
* s3c2410_gpio_cfgpin(S3C2410_GPA(0), S3C2410_GPA0_ADDR0);
|
|
* s3c2410_gpio_cfgpin(S3C2410_GPE(8), S3C2410_GPE8_SDDAT1);
|
|
*/
|
|
|
|
extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function);
|
|
|
|
extern unsigned int s3c2410_gpio_getcfg(unsigned int pin);
|
|
|
|
/* s3c2410_gpio_getirq
|
|
*
|
|
* turn the given pin number into the corresponding IRQ number
|
|
*
|
|
* returns:
|
|
* < 0 = no interrupt for this pin
|
|
* >=0 = interrupt number for the pin
|
|
*/
|
|
|
|
extern int s3c2410_gpio_getirq(unsigned int pin);
|
|
|
|
#ifdef CONFIG_CPU_S3C2400
|
|
|
|
extern int s3c2400_gpio_getirq(unsigned int pin);
|
|
|
|
#endif /* CONFIG_CPU_S3C2400 */
|
|
|
|
/* s3c2410_gpio_irqfilter
|
|
*
|
|
* set the irq filtering on the given pin
|
|
*
|
|
* on = 0 => disable filtering
|
|
* 1 => enable filtering
|
|
*
|
|
* config = S3C2410_EINTFLT_PCLK or S3C2410_EINTFLT_EXTCLK orred with
|
|
* width of filter (0 through 63)
|
|
*
|
|
*
|
|
*/
|
|
|
|
extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
|
|
unsigned int config);
|
|
|
|
/* s3c2410_gpio_pullup
|
|
*
|
|
* configure the pull-up control on the given pin
|
|
*
|
|
* to = 1 => disable the pull-up
|
|
* 0 => enable the pull-up
|
|
*
|
|
* eg;
|
|
*
|
|
* s3c2410_gpio_pullup(S3C2410_GPB(0), 0);
|
|
* s3c2410_gpio_pullup(S3C2410_GPE(8), 0);
|
|
*/
|
|
|
|
extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
|
|
|
|
/* s3c2410_gpio_getpull
|
|
*
|
|
* Read the state of the pull-up on a given pin
|
|
*
|
|
* return:
|
|
* < 0 => error code
|
|
* 0 => enabled
|
|
* 1 => disabled
|
|
*/
|
|
|
|
extern int s3c2410_gpio_getpull(unsigned int pin);
|
|
|
|
extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
|
|
|
|
extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
|