+++ /dev/null
-/*
- * Copyright (C) 2008 Stanley Pinchak <stanley_dot_pinchak_at_gmail_dot_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; 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_TITAN_H__
-#define __AR7_TITAN_H__
-
-#ifndef __AR7_GPIO_H__
-#include <asm/ar7/gpio.h>
-#endif
-
-typedef enum TITAN_GPIO_PIN_MODE_tag
-{
- FUNCTIONAL_PIN = 0,
- GPIO_PIN = 1
-} TITAN_GPIO_PIN_MODE_T;
-
-typedef enum TITAN_GPIO_PIN_DIRECTION_tag
-{
- GPIO_OUTPUT_PIN = 0,
- GPIO_INPUT_PIN = 1
-} TITAN_GPIO_PIN_DIRECTION_T;
-
-/**********************************************************************
- * GPIO Control
- **********************************************************************/
-
-typedef struct
-{
- int pinSelReg;
- int shift;
- int func;
-
-} GPIO_CFG;
-
-static GPIO_CFG gptable[]= {
- /* PIN_SEL_REG, START_BIT, GPIO_CFG_MUX_VALUE */
- {4,24,1},
- {4,26,1},
- {4,28,1},
- {4,30,1},
- {5,6,1},
- {5,8,1},
- {5,10,1},
- {5,12,1},
- {7,14,3},
- {7,16,3},
- {7,18,3},
- {7,20,3},
- {7,22,3},
- {7,26,3},
- {7,28,3},
- {7,30,3},
- {8,0,3},
- {8,2,3},
- {8,4,3},
- {8,10,3},
- {8,14,3},
- {8,16,3},
- {8,18,3},
- {8,20,3},
- {9,8,3},
- {9,10,3},
- {9,12,3},
- {9,14,3},
- {9,18,3},
- {9,20,3},
- {9,24,3},
- {9,26,3},
- {9,28,3},
- {9,30,3},
- {10,0,3},
- {10,2,3},
- {10,8,3},
- {10,10,3},
- {10,12,3},
- {10,14,3},
- {13,12,3},
- {13,14,3},
- {13,16,3},
- {13,18,3},
- {13,24,3},
- {13,26,3},
- {13,28,3},
- {13,30,3},
- {14,2,3},
- {14,6,3},
- {14,8,3},
- {14,12,3}
-};
-
-typedef struct
-{
- volatile unsigned int reg[21];
-}
-PIN_SEL_REG_ARRAY_T;
-
-typedef struct
-{
- unsigned int data_in [2];
- unsigned int data_out[2];
- unsigned int dir[2];
- unsigned int enable[2];
-
-} TITAN_GPIO_CONTROL_T;
-
-#define AVALANCHE_PIN_SEL_BASE 0xA861160C /*replace with KSEG1ADDR()*/
-
-static inline int titan_gpio_ctrl(unsigned int gpio_pin, TITAN_GPIO_PIN_MODE_T pin_mode,
- TITAN_GPIO_PIN_DIRECTION_T pin_direction)
-{
- int reg_index = 0;
- int mux_status;
- GPIO_CFG gpio_cfg;
- volatile PIN_SEL_REG_ARRAY_T *pin_sel_array = (PIN_SEL_REG_ARRAY_T*) AVALANCHE_PIN_SEL_BASE;
- volatile TITAN_GPIO_CONTROL_T *gpio_cntl = (TITAN_GPIO_CONTROL_T*) KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_INPUT_0);
-
- if (gpio_pin > 51 )
- return(-1);
-
- gpio_cfg = gptable[gpio_pin];
- mux_status = (pin_sel_array->reg[gpio_cfg.pinSelReg - 1] >> gpio_cfg.shift) & 0x3;
- if(!((mux_status == 0 /* tri-stated */ ) || (mux_status == gpio_cfg.func /*GPIO functionality*/)))
- {
- return(-1); /* Pin have been configured for non GPIO funcs. */
- }
-
- /* Set the pin to be used as GPIO. */
- pin_sel_array->reg[gpio_cfg.pinSelReg - 1] |= ((gpio_cfg.func & 0x3) << gpio_cfg.shift);
-
- /* Check whether gpio refers to the first GPIO reg or second. */
- if(gpio_pin > 31)
- {
- reg_index = 1;
- gpio_pin -= 32;
- }
-
- if(pin_mode)
- gpio_cntl->enable[reg_index] |= (1 << gpio_pin); /* Enable */
- else
- gpio_cntl->enable[reg_index] &= ~(1 << gpio_pin);
-
- if(pin_direction)
- gpio_cntl->dir[reg_index] |= (1 << gpio_pin); /* Input */
- else
- gpio_cntl->dir[reg_index] &= ~(1 << gpio_pin);
-
- return(0);
-
-}/* end of function titan_gpio_ctrl */
-
-static inline int titan_sysGpioInValue(unsigned int *in_val, unsigned int reg_index)
-{
- volatile TITAN_GPIO_CONTROL_T *gpio_cntl = (TITAN_GPIO_CONTROL_T*) KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_INPUT_0);
-
- if(reg_index > 1)
- return (-1);
-
- *in_val = gpio_cntl->data_in[reg_index];
-
- return (0);
-}
-
-
-#endif
projects / openwrt / svn-archive / archive.git / blobdiff