diff options
Diffstat (limited to 'target/linux/ar7/files-2.6.30/include/asm-mips/ar7/gpio.h')
| -rw-r--r-- | target/linux/ar7/files-2.6.30/include/asm-mips/ar7/gpio.h | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/target/linux/ar7/files-2.6.30/include/asm-mips/ar7/gpio.h b/target/linux/ar7/files-2.6.30/include/asm-mips/ar7/gpio.h deleted file mode 100644 index fde93bc7c..000000000 --- a/target/linux/ar7/files-2.6.30/include/asm-mips/ar7/gpio.h +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Copyright (C) 2007 Florian Fainelli <florian@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> -#ifndef __AR7_TITAN_H__ -#include <asm/ar7/titan.h> -#endif - -#define AR7_GPIO_MAX 32 -#define TITAN_GPIO_MAX 51 - -extern int gpio_request(unsigned gpio, const char *label); -extern void gpio_free(unsigned gpio); - -/* Common GPIO layer */ -static inline int gpio_get_value_ar7(unsigned gpio) -{ - void __iomem *gpio_in = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_INPUT); - - return readl(gpio_in) & (1 << gpio); -} - -static inline int gpio_get_value_titan(unsigned gpio) -{ - void __iomem *gpio_in0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_INPUT_0); - void __iomem *gpio_in1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_INPUT_1); - - return readl(gpio >> 5 ? gpio_in1 : gpio_in0) & (1 << (gpio & 0x1f)); -} - -static inline int gpio_get_value(unsigned gpio) -{ - return ar7_is_titan() ? gpio_get_value_titan(gpio) : - gpio_get_value_ar7(gpio); -} - -static inline void gpio_set_value_ar7(unsigned gpio, int value) -{ - void __iomem *gpio_out = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_OUTPUT); - unsigned tmp; - - tmp = readl(gpio_out) & ~(1 << gpio); - if (value) - tmp |= 1 << gpio; - writel(tmp, gpio_out); -} - -static inline void gpio_set_value_titan(unsigned gpio, int value) -{ - void __iomem *gpio_out0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_OUTPUT_0); - void __iomem *gpio_out1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_OUTPUT_1); - unsigned tmp; - - tmp = readl(gpio >> 5 ? gpio_out1 : gpio_out0) & ~(1 << (gpio & 0x1f)); - if (value) - tmp |= 1 << (gpio & 0x1f); - writel(tmp, gpio >> 5 ? gpio_out1 : gpio_out0); -} - -static inline void gpio_set_value(unsigned gpio, int value) -{ - if (ar7_is_titan()) - gpio_set_value_titan(gpio, value); - else - gpio_set_value_ar7(gpio, value); -} - -static inline int gpio_direction_input_ar7(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_input_titan(unsigned gpio) -{ - void __iomem *gpio_dir0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_DIR_0); - void __iomem *gpio_dir1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_DIR_1); - - if (gpio >= TITAN_GPIO_MAX) - return -EINVAL; - - writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) | (1 << (gpio & 0x1f)), - gpio >> 5 ? gpio_dir1 : gpio_dir0); - - return 0; -} - -static inline int gpio_direction_input(unsigned gpio) -{ - return ar7_is_titan() ? gpio_direction_input_titan(gpio) : - gpio_direction_input_ar7(gpio); -} - -static inline int gpio_direction_output_ar7(unsigned gpio, int value) -{ - void __iomem *gpio_dir = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_DIR); - - if (gpio >= AR7_GPIO_MAX) - return -EINVAL; - - gpio_set_value(gpio, value); - writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir); - - return 0; -} - -static inline int gpio_direction_output_titan(unsigned gpio, int value) -{ - void __iomem *gpio_dir0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_DIR_0); - void __iomem *gpio_dir1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_DIR_1); - - if (gpio >= TITAN_GPIO_MAX) - return -EINVAL; - - gpio_set_value_titan(gpio, value); - writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) & ~(1 << - (gpio & 0x1f)), gpio >> 5 ? gpio_dir1 : gpio_dir0); - - return 0; -} - -static inline int gpio_direction_output(unsigned gpio, int value) -{ - return ar7_is_titan() ? gpio_direction_output_titan(gpio, value) : - gpio_direction_output_ar7(gpio, value); -} - -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_ar7(unsigned gpio) -{ - void __iomem *gpio_en = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); - - writel(readl(gpio_en) | (1 << gpio), gpio_en); - - return 0; -} - -static inline int ar7_gpio_enable_titan(unsigned gpio) -{ - void __iomem *gpio_en0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_ENBL_0); - void __iomem *gpio_en1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_ENBL_1); - - writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) | (1 << (gpio & 0x1f)), - gpio >> 5 ? gpio_en1 : gpio_en0); - - return 0; -} - -static inline int ar7_gpio_enable(unsigned gpio) -{ - return ar7_is_titan() ? ar7_gpio_enable_titan(gpio) : - ar7_gpio_enable_ar7(gpio); -} - -static inline int ar7_gpio_disable_ar7(unsigned gpio) -{ - void __iomem *gpio_en = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + AR7_GPIO_ENABLE); - - writel(readl(gpio_en) & ~(1 << gpio), gpio_en); - - return 0; -} - -static inline int ar7_gpio_disable_titan(unsigned gpio) -{ - void __iomem *gpio_en0 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_ENBL_0); - void __iomem *gpio_en1 = - (void __iomem *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_ENBL_1); - - writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) & ~(1 << (gpio & 0x1f)), - gpio >> 5 ? gpio_en1 : gpio_en0); - - return 0; -} - -static inline int ar7_gpio_disable(unsigned gpio) -{ - return ar7_is_titan() ? ar7_gpio_disable_titan(gpio) : - ar7_gpio_disable_ar7(gpio); -} - -static inline int ar7_init_titan_variant( void ) -{ - /*UINT32 new_val;*/ - unsigned new_val; - - /* set GPIO 44 - 47 as input */ - /*PAL_sysGpioCtrl(const int, GPIO_PIN, GPIO_INPUT_PIN); */ - /*define titan_gpio_ctrl in titan.h*/ - titan_gpio_ctrl(44, GPIO_PIN, GPIO_INPUT_PIN); - titan_gpio_ctrl(45, GPIO_PIN, GPIO_INPUT_PIN); - titan_gpio_ctrl(46, GPIO_PIN, GPIO_INPUT_PIN); - titan_gpio_ctrl(47, GPIO_PIN, GPIO_INPUT_PIN); - - /* read GPIO to get Titan variant type */ - /*fix this*/ - titan_sysGpioInValue( &new_val, 1 ); - - new_val >>= 12; - new_val &= 0x0f; - - switch ( new_val ) - { - case TITAN_CHIP_1050: - case TITAN_CHIP_1055: - case TITAN_CHIP_1056: - case TITAN_CHIP_1060: - return new_val; - - default: - break; - } - /* In case we get an invalid value, return the default Titan chip */ - return TITAN_CHIP_1050; -} - -#include <asm-generic/gpio.h> - -#endif |