freebsd-dev/sys/arm/broadcom/bcm2835/bcm2835_bscreg.h
Luiz Otavio O Souza be9ddf4313 Add the Raspberry Pi BSC (I2C compliant) controller driver.
Reviewed by:	rpaulo
Approved by:	adrian (mentor)
2013-10-23 12:29:39 +00:00

62 lines
2.4 KiB
C

/*-
* 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_BSCREG_H_
#define _BCM2835_BSCREG_H_
#define BCM_BSC_CORE_CLK 150000000U
#define BCM_BSC_CTRL 0x00
#define BCM_BSC_CTRL_I2CEN (1 << 15)
#define BCM_BSC_CTRL_INTR (1 << 10)
#define BCM_BSC_CTRL_INTT (1 << 9)
#define BCM_BSC_CTRL_INTD (1 << 8)
#define BCM_BSC_CTRL_ST (1 << 7)
#define BCM_BSC_CTRL_CLEAR1 (1 << 5)
#define BCM_BSC_CTRL_CLEAR0 (1 << 4)
#define BCM_BSC_CTRL_READ (1 << 0)
#define BCM_BSC_STATUS 0x04
#define BCM_BSC_STATUS_CLKT (1 << 9)
#define BCM_BSC_STATUS_ERR (1 << 8)
#define BCM_BSC_STATUS_RXF (1 << 7)
#define BCM_BSC_STATUS_TXE (1 << 6)
#define BCM_BSC_STATUS_RXD (1 << 5)
#define BCM_BSC_STATUS_TXD (1 << 4)
#define BCM_BSC_STATUS_RXR (1 << 3)
#define BCM_BSC_STATUS_TXW (1 << 2)
#define BCM_BSC_STATUS_DONE (1 << 1)
#define BCM_BSC_STATUS_TA (1 << 0)
#define BCM_BSC_DLEN 0x08
#define BCM_BSC_SLAVE 0x0c
#define BCM_BSC_DATA 0x10
#define BCM_BSC_CLOCK 0x14
#define BCM_BSC_DELAY 0x18
#define BCM_BSC_CLKT 0x1c
#endif /* _BCM2835_BSCREG_H_ */