Release 4.14 arch/m68k/include/asm/gpio.h
/*
* Coldfire generic GPIO support
*
* (C) Copyright 2009, Steven King <sfking@fdwdc.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; version 2 of the License.
*
* 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.
*/
#ifndef coldfire_gpio_h
#define coldfire_gpio_h
#include <linux/io.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfgpio.h>
/*
* The Generic GPIO functions
*
* If the gpio is a compile time constant and is one of the Coldfire gpios,
* use the inline version, otherwise dispatch thru gpiolib.
*/
static inline int gpio_get_value(unsigned gpio)
{
if (__builtin_constant_p(gpio) && gpio < MCFGPIO_PIN_MAX)
return mcfgpio_read(__mcfgpio_ppdr(gpio)) & mcfgpio_bit(gpio);
else
return __gpio_get_value(gpio);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 42 | 100.00% | 2 | 100.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
static inline void gpio_set_value(unsigned gpio, int value)
{
if (__builtin_constant_p(gpio) && gpio < MCFGPIO_PIN_MAX) {
if (gpio < MCFGPIO_SCR_START) {
unsigned long flags;
MCFGPIO_PORTTYPE data;
local_irq_save(flags);
data = mcfgpio_read(__mcfgpio_podr(gpio));
if (value)
data |= mcfgpio_bit(gpio);
else
data &= ~mcfgpio_bit(gpio);
mcfgpio_write(data, __mcfgpio_podr(gpio));
local_irq_restore(flags);
} else {
if (value)
mcfgpio_write(mcfgpio_bit(gpio),
MCFGPIO_SETR_PORT(gpio));
else
mcfgpio_write(~mcfgpio_bit(gpio),
MCFGPIO_CLRR_PORT(gpio));
}
} else
__gpio_set_value(gpio, value);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 134 | 100.00% | 2 | 100.00% |
| Total | 134 | 100.00% | 2 | 100.00% |
static inline int gpio_to_irq(unsigned gpio)
{
#if defined(MCFGPIO_IRQ_MIN)
if ((gpio >= MCFGPIO_IRQ_MIN) && (gpio < MCFGPIO_IRQ_MAX))
#else
if (gpio < MCFGPIO_IRQ_MAX)
#endif
return gpio + MCFGPIO_IRQ_VECBASE;
else
return __gpio_to_irq(gpio);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 48 | 92.31% | 2 | 66.67% |
| Mark Brown | 4 | 7.69% | 1 | 33.33% |
| Total | 52 | 100.00% | 3 | 100.00% |
static inline int irq_to_gpio(unsigned irq)
{
return (irq >= MCFGPIO_IRQ_VECBASE &&
irq < (MCFGPIO_IRQ_VECBASE + MCFGPIO_IRQ_MAX)) ?
irq - MCFGPIO_IRQ_VECBASE : -ENXIO;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static inline int gpio_cansleep(unsigned gpio)
{
return gpio < MCFGPIO_PIN_MAX ? 0 : __gpio_cansleep(gpio);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 22 | 100.00% | 1 | 100.00% |
| Total | 22 | 100.00% | 1 | 100.00% |
#ifndef CONFIG_GPIOLIB
static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{
int err;
err = gpio_request(gpio, label);
if (err)
return err;
if (flags & GPIOF_DIR_IN)
err = gpio_direction_input(gpio);
else
err = gpio_direction_output(gpio,
(flags & GPIOF_INIT_HIGH) ? 1 : 0);
if (err)
gpio_free(gpio);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Greg Ungerer | 81 | 100.00% | 1 | 100.00% |
| Total | 81 | 100.00% | 1 | 100.00% |
#endif /* !CONFIG_GPIOLIB */
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven King | 300 | 76.73% | 3 | 50.00% |
| Greg Ungerer | 87 | 22.25% | 2 | 33.33% |
| Mark Brown | 4 | 1.02% | 1 | 16.67% |
| Total | 391 | 100.00% | 6 | 100.00% |
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