root/sys/dev/qcom_tlmm/qcom_tlmm_ipq4018_reg.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2021 Adrian Chadd <adrian@FreeBSD.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef __QCOM_TLMM_IPQ4018_REG_H__
#define __QCOM_TLMM_IPQ4018_REG_H__

/*
 * Each GPIO pin configuration block exists in a 0x1000 sized window.
 */
#define QCOM_TLMM_IPQ4018_REG_CONFIG_PIN_BASE           0x0
#define QCOM_TLMM_IPQ4018_REG_CONFIG_PIN_SIZE           0x1000

/*
 * Inside each configuration block are the following registers for
 * controlling the pin.
 */
#define QCOM_TLMM_IPQ4018_REG_PIN_CONTROL               0x00
                        /* 1 = output gpio pin, 0 = input gpio pin */

#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_MASK     0x3
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_SHIFT    0x0
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_DISABLE  0
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_PULLDOWN 1
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_PULLUP   2
                        /* There's no BUSHOLD on IPQ4018 */
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_PUPD_BUSHOLD  0
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_MUX_MASK      0x7
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_MUX_SHIFT     2
                        /* function/mux control */
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_DRIVE_STRENGTH_SHIFT  6
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_DRIVE_STRENGTH_MASK   0x7
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_OE_ENABLE     (1U << 9)
                        /* output enable */
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_VM_ENABLE     (1U << 11)
                        /* VM passthrough enable */
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_OD_ENABLE     (1U << 12)
                        /* open drain */
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_RES_MASK      0x3
#define         QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_RES_SHIFT     13
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_10K   0x0
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_1K5   0x1
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_35K   0x2
#define                 QCOM_TLMM_IPQ4018_REG_PIN_CONTROL_20K   0x3

#define QCOM_TLMM_IPQ4018_REG_PIN_IO                    0x04
#define         QCOM_TLMM_IPQ4018_REG_PIN_IO_INPUT_STATUS       (1U << 0)
                        /* read gpio input status */
#define         QCOM_TLMM_IPQ4018_REG_PIN_IO_OUTPUT_EN          (1U << 1)
                        /* set gpio output high or low */


#define QCOM_TLMM_IPQ4018_REG_PIN_INTR_CONFIG           0x08
#define QCOM_TLMM_IPQ4018_REG_PIN_INTR_STATUS           0x0c

#define QCOM_TLMM_IPQ4018_REG_PIN(p, reg)               \
            (((p) * QCOM_TLMM_IPQ4018_REG_CONFIG_PIN_SIZE) + \
              QCOM_TLMM_IPQ4018_REG_CONFIG_PIN_BASE + (reg))

#endif  /* __QCOM_TLMM_IPQ4018_REG_H__ */