diff options
Diffstat (limited to 'arch/mips/au1000/common/gpio.c')
| -rw-r--r-- | arch/mips/au1000/common/gpio.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/mips/au1000/common/gpio.c b/arch/mips/au1000/common/gpio.c deleted file mode 100644 index b485d94ce8a5..000000000000 --- a/arch/mips/au1000/common/gpio.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org> - * Architecture specific GPIO support - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Notes : - * au1000 SoC have only one GPIO line : GPIO1 - * others have a second one : GPIO2 - */ - -#include <linux/module.h> - -#include <asm/mach-au1x00/au1000.h> -#include <asm/gpio.h> - -#define gpio1 sys -#if !defined(CONFIG_SOC_AU1000) - -static struct au1x00_gpio2 *const gpio2 = (struct au1x00_gpio2 *) GPIO2_BASE; -#define GPIO2_OUTPUT_ENABLE_MASK 0x00010000 - -static int au1xxx_gpio2_read(unsigned gpio) -{ - gpio -= AU1XXX_GPIO_BASE; - return ((gpio2->pinstate >> gpio) & 0x01); -} - -static void au1xxx_gpio2_write(unsigned gpio, int value) -{ - gpio -= AU1XXX_GPIO_BASE; - - gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | (value << gpio); -} - -static int au1xxx_gpio2_direction_input(unsigned gpio) -{ - gpio -= AU1XXX_GPIO_BASE; - gpio2->dir &= ~(0x01 << gpio); - return 0; -} - -static int au1xxx_gpio2_direction_output(unsigned gpio, int value) -{ - gpio -= AU1XXX_GPIO_BASE; - gpio2->dir = (0x01 << gpio) | (value << gpio); - return 0; -} - -#endif /* !defined(CONFIG_SOC_AU1000) */ - -static int au1xxx_gpio1_read(unsigned gpio) -{ - return (gpio1->pinstaterd >> gpio) & 0x01; -} - -static void au1xxx_gpio1_write(unsigned gpio, int value) -{ - if (value) - gpio1->outputset = (0x01 << gpio); - else - /* Output a zero */ - gpio1->outputclr = (0x01 << gpio); -} - -static int au1xxx_gpio1_direction_input(unsigned gpio) -{ - gpio1->pininputen = (0x01 << gpio); - return 0; -} - -static int au1xxx_gpio1_direction_output(unsigned gpio, int value) -{ - gpio1->trioutclr = (0x01 & gpio); - return 0; -} - -int au1xxx_gpio_get_value(unsigned gpio) -{ - if (gpio >= AU1XXX_GPIO_BASE) -#if defined(CONFIG_SOC_AU1000) - return 0; -#else - return au1xxx_gpio2_read(gpio); -#endif - else - return au1xxx_gpio1_read(gpio); -} -EXPORT_SYMBOL(au1xxx_gpio_get_value); - -void au1xxx_gpio_set_value(unsigned gpio, int value) -{ - if (gpio >= AU1XXX_GPIO_BASE) -#if defined(CONFIG_SOC_AU1000) - ; -#else - au1xxx_gpio2_write(gpio, value); -#endif - else - au1xxx_gpio1_write(gpio, value); -} -EXPORT_SYMBOL(au1xxx_gpio_set_value); - -int au1xxx_gpio_direction_input(unsigned gpio) -{ - if (gpio >= AU1XXX_GPIO_BASE) -#if defined(CONFIG_SOC_AU1000) - return -ENODEV; -#else - return au1xxx_gpio2_direction_input(gpio); -#endif - - return au1xxx_gpio1_direction_input(gpio); -} -EXPORT_SYMBOL(au1xxx_gpio_direction_input); - -int au1xxx_gpio_direction_output(unsigned gpio, int value) -{ - if (gpio >= AU1XXX_GPIO_BASE) -#if defined(CONFIG_SOC_AU1000) - return -ENODEV; -#else - return au1xxx_gpio2_direction_output(gpio, value); -#endif - - return au1xxx_gpio1_direction_output(gpio, value); -} -EXPORT_SYMBOL(au1xxx_gpio_direction_output); |