/* * SuperH Pin Function Controller Support * * Copyright (c) 2008 Magnus Damm * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef __SH_PFC_H #define __SH_PFC_H #include <asm-generic/gpio.h> typedef unsigned short pinmux_enum_t; typedef unsigned short pinmux_flag_t; #define PINMUX_TYPE_NONE 0 #define PINMUX_TYPE_FUNCTION 1 #define PINMUX_TYPE_GPIO 2 #define PINMUX_TYPE_OUTPUT 3 #define PINMUX_TYPE_INPUT 4 #define PINMUX_TYPE_INPUT_PULLUP 5 #define PINMUX_TYPE_INPUT_PULLDOWN 6 #define PINMUX_FLAG_TYPE (0x7) #define PINMUX_FLAG_WANT_PULLUP (1 << 3) #define PINMUX_FLAG_WANT_PULLDOWN (1 << 4) #define PINMUX_FLAG_DBIT_SHIFT 5 #define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT) #define PINMUX_FLAG_DREG_SHIFT 10 #define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT) struct pinmux_gpio { pinmux_enum_t enum_id; pinmux_flag_t flags; }; #define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark } #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 struct pinmux_cfg_reg { unsigned long reg, reg_width, field_width; unsigned long *cnt; pinmux_enum_t *enum_ids; }; #define PINMUX_CFG_REG(name, r, r_width, f_width) \ .reg = r, .reg_width = r_width, .field_width = f_width, \ .cnt = (unsigned long [r_width / f_width]) {}, \ .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \ struct pinmux_data_reg { unsigned long reg, reg_width, reg_shadow; pinmux_enum_t *enum_ids; }; #define PINMUX_DATA_REG(name, r, r_width) \ .reg = r, .reg_width = r_width, \ .enum_ids = (pinmux_enum_t [r_width]) \ struct pinmux_range { pinmux_enum_t begin; pinmux_enum_t end; pinmux_enum_t force; }; struct pinmux_info { char *name; pinmux_enum_t reserved_id; struct pinmux_range data; struct pinmux_range input; struct pinmux_range input_pd; struct pinmux_range input_pu; struct pinmux_range output; struct pinmux_range mark; struct pinmux_range function; unsigned first_gpio, last_gpio; struct pinmux_gpio *gpios; struct pinmux_cfg_reg *cfg_regs; struct pinmux_data_reg *data_regs; pinmux_enum_t *gpio_data; unsigned int gpio_data_size; unsigned long *gpio_in_use; struct gpio_chip chip; }; int register_pinmux(struct pinmux_info *pip); #endif /* __SH_PFC_H */