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fdtvar.h revision 1.7.4.1
      1 /* $NetBSD: fdtvar.h,v 1.7.4.1 2017/04/21 16:53:45 bouyer Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2015 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _DEV_FDT_FDTVAR_H
     30 #define _DEV_FDT_FDTVAR_H
     31 
     32 #include <sys/types.h>
     33 #include <sys/bus.h>
     34 
     35 #include <dev/i2c/i2cvar.h>
     36 #include <dev/clk/clk.h>
     37 
     38 #include <dev/ofw/openfirm.h>
     39 
     40 struct fdt_attach_args {
     41 	const char *faa_name;
     42 	bus_space_tag_t faa_bst;
     43 	bus_space_tag_t faa_a4x_bst;
     44 	bus_dma_tag_t faa_dmat;
     45 	int faa_phandle;
     46 };
     47 
     48 /* flags for fdtbus_intr_establish */
     49 #define FDT_INTR_MPSAFE	__BIT(0)
     50 
     51 struct fdtbus_interrupt_controller_func {
     52 	void *	(*establish)(device_t, u_int *, int, int,
     53 			     int (*)(void *), void *);
     54 	void	(*disestablish)(device_t, void *);
     55 	bool	(*intrstr)(device_t, u_int *, char *, size_t);
     56 };
     57 
     58 struct fdtbus_i2c_controller_func {
     59 	i2c_tag_t (*get_tag)(device_t);
     60 };
     61 
     62 struct fdtbus_gpio_controller;
     63 
     64 struct fdtbus_gpio_pin {
     65 	struct fdtbus_gpio_controller *gp_gc;
     66 	void *gp_priv;
     67 };
     68 
     69 struct fdtbus_gpio_controller_func {
     70 	void *	(*acquire)(device_t, const void *, size_t, int);
     71 	void	(*release)(device_t, void *);
     72 	int	(*read)(device_t, void *, bool);
     73 	void	(*write)(device_t, void *, int, bool);
     74 };
     75 
     76 struct fdtbus_pinctrl_controller;
     77 
     78 struct fdtbus_pinctrl_pin {
     79 	struct fdtbus_pinctrl_controller *pp_pc;
     80 	void *pp_priv;
     81 };
     82 
     83 struct fdtbus_pinctrl_controller_func {
     84 	int (*set_config)(void *);
     85 };
     86 
     87 struct fdtbus_regulator_controller;
     88 
     89 struct fdtbus_regulator {
     90 	struct fdtbus_regulator_controller *reg_rc;
     91 };
     92 
     93 struct fdtbus_regulator_controller_func {
     94 	int	(*acquire)(device_t);
     95 	void	(*release)(device_t);
     96 	int	(*enable)(device_t, bool);
     97 };
     98 
     99 struct fdtbus_clock_controller_func {
    100 	struct clk *	(*decode)(device_t, const void *, size_t);
    101 };
    102 
    103 struct fdtbus_reset_controller;
    104 
    105 struct fdtbus_reset {
    106 	struct fdtbus_reset_controller *rst_rc;
    107 	void *rst_priv;
    108 };
    109 
    110 struct fdtbus_reset_controller_func {
    111 	void *	(*acquire)(device_t, const void *, size_t);
    112 	void	(*release)(device_t, void *);
    113 	int	(*reset_assert)(device_t, void *);
    114 	int	(*reset_deassert)(device_t, void *);
    115 };
    116 
    117 int		fdtbus_register_interrupt_controller(device_t, int,
    118 		    const struct fdtbus_interrupt_controller_func *);
    119 int		fdtbus_register_i2c_controller(device_t, int,
    120 		    const struct fdtbus_i2c_controller_func *);
    121 int		fdtbus_register_gpio_controller(device_t, int,
    122 		    const struct fdtbus_gpio_controller_func *);
    123 int		fdtbus_register_pinctrl_config(void *, int,
    124 		    const struct fdtbus_pinctrl_controller_func *);
    125 int		fdtbus_register_regulator_controller(device_t, int,
    126 		    const struct fdtbus_regulator_controller_func *);
    127 int		fdtbus_register_clock_controller(device_t, int,
    128 		    const struct fdtbus_clock_controller_func *);
    129 int		fdtbus_register_reset_controller(device_t, int,
    130 		    const struct fdtbus_reset_controller_func *);
    131 
    132 int		fdtbus_get_reg(int, u_int, bus_addr_t *, bus_size_t *);
    133 int		fdtbus_get_phandle(int, const char *);
    134 int		fdtbus_get_phandle_from_native(int);
    135 i2c_tag_t	fdtbus_get_i2c_tag(int);
    136 void *		fdtbus_intr_establish(int, u_int, int, int,
    137 		    int (*func)(void *), void *arg);
    138 void		fdtbus_intr_disestablish(int, void *);
    139 bool		fdtbus_intr_str(int, u_int, char *, size_t);
    140 struct fdtbus_gpio_pin *fdtbus_gpio_acquire(int, const char *, int);
    141 void		fdtbus_gpio_release(struct fdtbus_gpio_pin *);
    142 int		fdtbus_gpio_read(struct fdtbus_gpio_pin *);
    143 void		fdtbus_gpio_write(struct fdtbus_gpio_pin *, int);
    144 int		fdtbus_gpio_read_raw(struct fdtbus_gpio_pin *);
    145 void		fdtbus_gpio_write_raw(struct fdtbus_gpio_pin *, int);
    146 int		fdtbus_pinctrl_set_config_index(int, u_int);
    147 int		fdtbus_pinctrl_set_config(int, const char *);
    148 struct fdtbus_regulator *fdtbus_regulator_acquire(int, const char *);
    149 void		fdtbus_regulator_release(struct fdtbus_regulator *);
    150 int		fdtbus_regulator_enable(struct fdtbus_regulator *);
    151 int		fdtbus_regulator_disable(struct fdtbus_regulator *);
    152 
    153 struct clk *	fdtbus_clock_get(int, const char *);
    154 struct clk *	fdtbus_clock_get_index(int, u_int);
    155 
    156 struct fdtbus_reset *fdtbus_reset_get(int, const char *);
    157 struct fdtbus_reset *fdtbus_reset_get_index(int, u_int);
    158 void		fdtbus_reset_put(struct fdtbus_reset *);
    159 int		fdtbus_reset_assert(struct fdtbus_reset *);
    160 int		fdtbus_reset_deassert(struct fdtbus_reset *);
    161 
    162 bool		fdtbus_set_data(const void *);
    163 const void *	fdtbus_get_data(void);
    164 int		fdtbus_phandle2offset(int);
    165 int		fdtbus_offset2phandle(int);
    166 bool		fdtbus_get_path(int, char *, size_t);
    167 
    168 #endif /* _DEV_FDT_FDTVAR_H */
    169