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imxgpiovar.h revision 1.1.62.1
      1       1.1     bsh /*	$NetBSD: imxgpiovar.h,v 1.1.62.1 2020/04/13 08:03:35 martin Exp $ */
      2       1.1     bsh /*-
      3       1.1     bsh  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      4       1.1     bsh  * All rights reserved.
      5       1.1     bsh  *
      6       1.1     bsh  * This code is derived from software contributed to The NetBSD Foundation
      7       1.1     bsh  * by Matt Thomas
      8       1.1     bsh  *
      9       1.1     bsh  * Redistribution and use in source and binary forms, with or without
     10       1.1     bsh  * modification, are permitted provided that the following conditions
     11       1.1     bsh  * are met:
     12       1.1     bsh  * 1. Redistributions of source code must retain the above copyright
     13       1.1     bsh  *    notice, this list of conditions and the following disclaimer.
     14       1.1     bsh  * 2. Redistributions in binary form must reproduce the above copyright
     15       1.1     bsh  *    notice, this list of conditions and the following disclaimer in the
     16       1.1     bsh  *    documentation and/or other materials provided with the distribution.
     17       1.1     bsh  *
     18       1.1     bsh  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19       1.1     bsh  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20       1.1     bsh  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21       1.1     bsh  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22       1.1     bsh  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23       1.1     bsh  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24       1.1     bsh  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25       1.1     bsh  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26       1.1     bsh  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27       1.1     bsh  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28       1.1     bsh  * POSSIBILITY OF SUCH DAMAGE.
     29       1.1     bsh  */
     30  1.1.62.1  martin #ifndef _ARM_IMX_IMXGPIOVAR_H
     31  1.1.62.1  martin #define _ARM_IMX_IMXGPIOVAR_H
     32  1.1.62.1  martin 
     33  1.1.62.1  martin #include <sys/gpio.h>
     34  1.1.62.1  martin #include <dev/gpio/gpiovar.h>
     35       1.1     bsh 
     36       1.1     bsh #include <arm/imx/imxgpioreg.h>	/* for GPIO_NPINS */
     37       1.1     bsh 
     38  1.1.62.1  martin struct imxgpio_softc {
     39  1.1.62.1  martin 	struct pic_softc gpio_pic;
     40  1.1.62.1  martin 
     41  1.1.62.1  martin 	device_t gpio_dev;
     42  1.1.62.1  martin 	bus_space_tag_t gpio_memt;
     43  1.1.62.1  martin 	bus_space_handle_t gpio_memh;
     44  1.1.62.1  martin 
     45  1.1.62.1  martin 	void *gpio_is;
     46  1.1.62.1  martin 	void *gpio_is_high;
     47  1.1.62.1  martin 
     48  1.1.62.1  martin 	int gpio_unit;
     49  1.1.62.1  martin 	int gpio_irqbase;
     50  1.1.62.1  martin 	uint32_t gpio_enable_mask;
     51  1.1.62.1  martin 	uint32_t gpio_edge_mask;
     52  1.1.62.1  martin 	uint32_t gpio_level_mask;
     53  1.1.62.1  martin #if NGPIO > 0
     54  1.1.62.1  martin 	struct gpio_chipset_tag gpio_chipset;
     55  1.1.62.1  martin 	gpio_pin_t gpio_pins[32];
     56  1.1.62.1  martin #endif
     57  1.1.62.1  martin 
     58  1.1.62.1  martin 	kmutex_t gpio_lock;
     59  1.1.62.1  martin };
     60  1.1.62.1  martin 
     61  1.1.62.1  martin struct imxgpio_pin {
     62  1.1.62.1  martin 	int pin_no;
     63  1.1.62.1  martin 	u_int pin_flags;
     64  1.1.62.1  martin 	bool pin_actlo;
     65  1.1.62.1  martin };
     66  1.1.62.1  martin 
     67  1.1.62.1  martin void imxgpio_attach_common(device_t);
     68       1.1     bsh /* defined imx[35]1_gpio.c */
     69       1.1     bsh extern const int imxgpio_ngroups;
     70       1.1     bsh int imxgpio_match(device_t, cfdata_t, void *);
     71       1.1     bsh void imxgpio_attach(device_t, device_t, void *);
     72       1.1     bsh 
     73  1.1.62.1  martin int imxgpio_pin_read(void *, int);
     74  1.1.62.1  martin void imxgpio_pin_write(void *, int, int);
     75  1.1.62.1  martin void imxgpio_pin_ctl(void *, int, int);
     76  1.1.62.1  martin 
     77  1.1.62.1  martin /* in-kernel GPIO access utility functions */
     78  1.1.62.1  martin void imxgpio_set_direction(u_int, int);
     79  1.1.62.1  martin void imxgpio_data_write(u_int, u_int);
     80  1.1.62.1  martin bool imxgpio_data_read(u_int);
     81       1.1     bsh 
     82       1.1     bsh #define	GPIO_NO(group, pin)	(((group) - 1) * GPIO_NPINS + (pin))
     83       1.1     bsh #define	GPIO_MODULE(pin)	((pin) / GPIO_NPINS)
     84       1.1     bsh 
     85  1.1.62.1  martin #endif	/* _ARM_IMX_IMXGPIOVAR_H */
     86