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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/m68k/include/asm/gpio.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/include/asm/gpio.h')
-rw-r--r--ANDROID_3.4.5/arch/m68k/include/asm/gpio.h244
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diff --git a/ANDROID_3.4.5/arch/m68k/include/asm/gpio.h b/ANDROID_3.4.5/arch/m68k/include/asm/gpio.h
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index 00d0071d..00000000
--- a/ANDROID_3.4.5/arch/m68k/include/asm/gpio.h
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * 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-generic/gpio.h>
-#include <asm/coldfire.h>
-#include <asm/mcfsim.h>
-
-/*
- * The Freescale Coldfire family is quite varied in how they implement GPIO.
- * Some parts have 8 bit ports, some have 16bit and some have 32bit; some have
- * only one port, others have multiple ports; some have a single data latch
- * for both input and output, others have a separate pin data register to read
- * input; some require a read-modify-write access to change an output, others
- * have set and clear registers for some of the outputs; Some have all the
- * GPIOs in a single control area, others have some GPIOs implemented in
- * different modules.
- *
- * This implementation attempts accommodate the differences while presenting
- * a generic interface that will optimize to as few instructions as possible.
- */
-#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
- defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
- defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
- defined(CONFIG_M532x) || defined(CONFIG_M54xx)
-
-/* These parts have GPIO organized by 8 bit ports */
-
-#define MCFGPIO_PORTTYPE u8
-#define MCFGPIO_PORTSIZE 8
-#define mcfgpio_read(port) __raw_readb(port)
-#define mcfgpio_write(data, port) __raw_writeb(data, port)
-
-#elif defined(CONFIG_M5307) || defined(CONFIG_M5407) || defined(CONFIG_M5272)
-
-/* These parts have GPIO organized by 16 bit ports */
-
-#define MCFGPIO_PORTTYPE u16
-#define MCFGPIO_PORTSIZE 16
-#define mcfgpio_read(port) __raw_readw(port)
-#define mcfgpio_write(data, port) __raw_writew(data, port)
-
-#elif defined(CONFIG_M5249)
-
-/* These parts have GPIO organized by 32 bit ports */
-
-#define MCFGPIO_PORTTYPE u32
-#define MCFGPIO_PORTSIZE 32
-#define mcfgpio_read(port) __raw_readl(port)
-#define mcfgpio_write(data, port) __raw_writel(data, port)
-
-#endif
-
-#define mcfgpio_bit(gpio) (1 << ((gpio) % MCFGPIO_PORTSIZE))
-#define mcfgpio_port(gpio) ((gpio) / MCFGPIO_PORTSIZE)
-
-#if defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
- defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
-/*
- * These parts have an 'Edge' Port module (external interrupt/GPIO) which uses
- * read-modify-write to change an output and a GPIO module which has separate
- * set/clr registers to directly change outputs with a single write access.
- */
-#if defined(CONFIG_M528x)
-/*
- * The 528x also has GPIOs in other modules (GPT, QADC) which use
- * read-modify-write as well as those controlled by the EPORT and GPIO modules.
- */
-#define MCFGPIO_SCR_START 40
-#else
-#define MCFGPIO_SCR_START 8
-#endif
-
-#define MCFGPIO_SETR_PORT(gpio) (MCFGPIO_SETR + \
- mcfgpio_port(gpio - MCFGPIO_SCR_START))
-
-#define MCFGPIO_CLRR_PORT(gpio) (MCFGPIO_CLRR + \
- mcfgpio_port(gpio - MCFGPIO_SCR_START))
-#else
-
-#define MCFGPIO_SCR_START MCFGPIO_PIN_MAX
-/* with MCFGPIO_SCR == MCFGPIO_PIN_MAX, these will be optimized away */
-#define MCFGPIO_SETR_PORT(gpio) 0
-#define MCFGPIO_CLRR_PORT(gpio) 0
-
-#endif
-/*
- * Coldfire specific helper functions
- */
-
-/* return the port pin data register for a gpio */
-static inline u32 __mcf_gpio_ppdr(unsigned gpio)
-{
-#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
- defined(CONFIG_M5307) || defined(CONFIG_M5407)
- return MCFSIM_PADAT;
-#elif defined(CONFIG_M5272)
- if (gpio < 16)
- return MCFSIM_PADAT;
- else if (gpio < 32)
- return MCFSIM_PBDAT;
- else
- return MCFSIM_PCDAT;
-#elif defined(CONFIG_M5249)
- if (gpio < 32)
- return MCFSIM2_GPIOREAD;
- else
- return MCFSIM2_GPIO1READ;
-#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
- defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
- if (gpio < 8)
- return MCFEPORT_EPPDR;
-#if defined(CONFIG_M528x)
- else if (gpio < 16)
- return MCFGPTA_GPTPORT;
- else if (gpio < 24)
- return MCFGPTB_GPTPORT;
- else if (gpio < 32)
- return MCFQADC_PORTQA;
- else if (gpio < 40)
- return MCFQADC_PORTQB;
-#endif
- else
- return MCFGPIO_PPDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
-#else
- return 0;
-#endif
-}
-
-/* return the port output data register for a gpio */
-static inline u32 __mcf_gpio_podr(unsigned gpio)
-{
-#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
- defined(CONFIG_M5307) || defined(CONFIG_M5407)
- return MCFSIM_PADAT;
-#elif defined(CONFIG_M5272)
- if (gpio < 16)
- return MCFSIM_PADAT;
- else if (gpio < 32)
- return MCFSIM_PBDAT;
- else
- return MCFSIM_PCDAT;
-#elif defined(CONFIG_M5249)
- if (gpio < 32)
- return MCFSIM2_GPIOWRITE;
- else
- return MCFSIM2_GPIO1WRITE;
-#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
- defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
- if (gpio < 8)
- return MCFEPORT_EPDR;
-#if defined(CONFIG_M528x)
- else if (gpio < 16)
- return MCFGPTA_GPTPORT;
- else if (gpio < 24)
- return MCFGPTB_GPTPORT;
- else if (gpio < 32)
- return MCFQADC_PORTQA;
- else if (gpio < 40)
- return MCFQADC_PORTQB;
-#endif
- else
- return MCFGPIO_PODR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
-#else
- return 0;
-#endif
-}
-
-/*
- * 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(__mcf_gpio_ppdr(gpio)) & mcfgpio_bit(gpio);
- else
- return __gpio_get_value(gpio);
-}
-
-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(__mcf_gpio_podr(gpio));
- if (value)
- data |= mcfgpio_bit(gpio);
- else
- data &= ~mcfgpio_bit(gpio);
- mcfgpio_write(data, __mcf_gpio_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);
-}
-
-static inline int gpio_to_irq(unsigned gpio)
-{
- return (gpio < MCFGPIO_IRQ_MAX) ? gpio + MCFGPIO_IRQ_VECBASE
- : __gpio_to_irq(gpio);
-}
-
-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;
-}
-
-static inline int gpio_cansleep(unsigned gpio)
-{
- return gpio < MCFGPIO_PIN_MAX ? 0 : __gpio_cansleep(gpio);
-}
-
-#endif