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author | Florian Fainelli <florian@openwrt.org> | 2007-05-29 11:15:17 +0000 |
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committer | Florian Fainelli <florian@openwrt.org> | 2007-05-29 11:15:17 +0000 |
commit | 47a9b1cb184fa83f9f96d6980a31e640cf9574ab (patch) | |
tree | fc743817ae2ed405c010cf9de5410d2694ba2697 /target/linux/ar7-2.6/files | |
parent | a63ed548ae661394d5d36fa8b032760ba0856871 (diff) | |
download | master-187ad058-47a9b1cb184fa83f9f96d6980a31e640cf9574ab.tar.gz master-187ad058-47a9b1cb184fa83f9f96d6980a31e640cf9574ab.tar.bz2 master-187ad058-47a9b1cb184fa83f9f96d6980a31e640cf9574ab.zip |
Restore the gpio.h file, platform.c uses the generic GPIO API
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7380 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar7-2.6/files')
-rw-r--r-- | target/linux/ar7-2.6/files/arch/mips/ar7/platform.c | 2 | ||||
-rw-r--r-- | target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h | 116 |
2 files changed, 117 insertions, 1 deletions
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c b/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c index c61e20a6c1..cbd61f44aa 100644 --- a/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c +++ b/target/linux/ar7-2.6/files/arch/mips/ar7/platform.c @@ -31,7 +31,7 @@ #include <asm/addrspace.h> #include <asm/io.h> #include <asm/ar7/ar7.h> -#include <asm/ar7/gpio.h> +#include <asm/gpio.h> #include <asm/ar7/vlynq.h> struct plat_vlynq_data { diff --git a/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h b/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h new file mode 100644 index 0000000000..1cb11a377b --- /dev/null +++ b/target/linux/ar7-2.6/files/include/asm-mips/ar7/gpio.h @@ -0,0 +1,116 @@ +/* + * $Id: gpio.h 6693 2007-03-25 05:42:16Z ejka $ + * + * Copyright (C) 2007 OpenWrt.org + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __AR7_GPIO_H__ +#define __AR7_GPIO_H__ +#include <asm/ar7/ar7.h> + +#define AR7_GPIO_MAX 32 + +extern int gpio_request(unsigned gpio, char *label); +extern void gpio_free(unsigned gpio); + +/* Common GPIO layer */ +static inline int gpio_direction_input(unsigned gpio) +{ + void __iomem *gpio_dir = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR); + + if (gpio >= AR7_GPIO_MAX) + return -EINVAL; + + writel(readl(gpio_dir) | (1 << gpio), gpio_dir); + + return 0; +} + +static inline int gpio_direction_output(unsigned gpio) +{ + void __iomem *gpio_dir = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR); + + if (gpio >= AR7_GPIO_MAX) + return -EINVAL; + + writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir); + + return 0; +} + +static inline int gpio_get_value(unsigned gpio) +{ + void __iomem *gpio_in = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT); + + if (gpio >= AR7_GPIO_MAX) + return -EINVAL; + + return ((readl(gpio_in) & (1 << gpio)) != 0); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + void __iomem *gpio_out = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT); + volatile unsigned tmp; + + if (gpio >= AR7_GPIO_MAX) + return; + + tmp = readl(gpio_out) & ~(1 << gpio); + if (value) + tmp |= 1 << gpio; + writel(tmp, gpio_out); +} + +static inline int gpio_to_irq(unsigned gpio) +{ + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + return -EINVAL; +} + +/* Board specific GPIO functions */ +static inline int ar7_gpio_enable(unsigned gpio) +{ + void __iomem *gpio_en = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); + + if (gpio >= AR7_GPIO_MAX) + return -EINVAL; + + writel(readl(gpio_en) | (1 << gpio), gpio_en); + + return 0; +} + +static inline int ar7_gpio_disable(unsigned gpio) +{ + void __iomem *gpio_en = (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); + + if (gpio >= AR7_GPIO_MAX) + return -EINVAL; + + writel(readl(gpio_en) & ~(1 << gpio), gpio_en); + + return 0; +} + +#include <asm-generic/gpio.h> + +#endif |