1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 5 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _BCM2835_BSCVAR_H 31 #define _BCM2835_BSCVAR_H 32 33 struct iic_msg; 34 35 struct bcm_bsc_softc { 36 device_t sc_dev; 37 device_t sc_iicbus; 38 struct mtx sc_mtx; 39 struct resource * sc_mem_res; 40 struct resource * sc_irq_res; 41 void * sc_intrhand; 42 struct iic_msg * sc_curmsg; 43 bus_space_tag_t sc_bst; 44 bus_space_handle_t sc_bsh; 45 int sc_debug; 46 uint16_t sc_replen; 47 uint16_t sc_totlen; 48 uint16_t sc_resid; 49 uint16_t sc_dlen; 50 uint8_t * sc_data; 51 uint8_t sc_flags; 52 }; 53 54 #define BCM_I2C_BUSY 0x01 55 #define BCM_I2C_READ 0x02 56 #define BCM_I2C_ERROR 0x04 57 #define BCM_I2C_DONE 0x08 58 59 #define BCM_BSC_WRITE(_sc, _off, _val) \ 60 bus_space_write_4((_sc)->sc_bst, (_sc)->sc_bsh, _off, _val) 61 #define BCM_BSC_READ(_sc, _off) \ 62 bus_space_read_4((_sc)->sc_bst, (_sc)->sc_bsh, _off) 63 64 #define BCM_BSC_LOCK(_sc) \ 65 mtx_lock(&(_sc)->sc_mtx) 66 #define BCM_BSC_UNLOCK(_sc) \ 67 mtx_unlock(&(_sc)->sc_mtx) 68 69 #endif /* _BCM2835_BSCVAR_H_ */ 70