91cc58af37
On Raspberry Pi platform GPIO controller also responsible for pins multiplexing. Pi code predates proper FDT support in FreeBSD so a lot of pinmux info is hardcoded. This patch: - Implements pinctl methods in bcm2835_gpio - Converts all devices with ad-hoc pinmux info to proper pin control mechanisms and adds pinmux info in FreeBSD's custom dts files. - Adds fdt_pinctrl option to RPI2 and RPI-B kernels - Adds SPI pinmux config to FreeBSD's customization of GNU DTS. Reviewed by: imp, manu Differential Revision: https://reviews.freebsd.org/D14104
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
|
|
* Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _BCM2835_BSCVAR_H
|
|
#define _BCM2835_BSCVAR_H
|
|
|
|
struct iic_msg;
|
|
|
|
struct bcm_bsc_softc {
|
|
device_t sc_dev;
|
|
device_t sc_iicbus;
|
|
struct mtx sc_mtx;
|
|
struct resource * sc_mem_res;
|
|
struct resource * sc_irq_res;
|
|
void * sc_intrhand;
|
|
struct iic_msg * sc_curmsg;
|
|
bus_space_tag_t sc_bst;
|
|
bus_space_handle_t sc_bsh;
|
|
int sc_debug;
|
|
uint16_t sc_replen;
|
|
uint16_t sc_totlen;
|
|
uint16_t sc_resid;
|
|
uint16_t sc_dlen;
|
|
uint8_t * sc_data;
|
|
uint8_t sc_flags;
|
|
};
|
|
|
|
#define BCM_I2C_BUSY 0x01
|
|
#define BCM_I2C_READ 0x02
|
|
#define BCM_I2C_ERROR 0x04
|
|
#define BCM_I2C_DONE 0x08
|
|
|
|
#define BCM_BSC_WRITE(_sc, _off, _val) \
|
|
bus_space_write_4((_sc)->sc_bst, (_sc)->sc_bsh, _off, _val)
|
|
#define BCM_BSC_READ(_sc, _off) \
|
|
bus_space_read_4((_sc)->sc_bst, (_sc)->sc_bsh, _off)
|
|
|
|
#define BCM_BSC_LOCK(_sc) \
|
|
mtx_lock(&(_sc)->sc_mtx)
|
|
#define BCM_BSC_UNLOCK(_sc) \
|
|
mtx_unlock(&(_sc)->sc_mtx)
|
|
|
|
#endif /* _BCM2835_BSCVAR_H_ */
|