2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
3 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #ifndef _BCM2835_BSCVAR_H
31 #define _BCM2835_BSCVAR_H
38 { 0, 1, 0x20205000 }, /* BSC0 GPIO pins and base address. */
39 { 2, 3, 0x20804000 } /* BSC1 GPIO pins and base address. */
42 struct bcm_bsc_softc {
46 struct resource * sc_mem_res;
47 struct resource * sc_irq_res;
48 bus_space_tag_t sc_bst;
49 bus_space_handle_t sc_bsh;
56 #define BCM_I2C_BUSY 0x01
57 #define BCM_I2C_READ 0x02
58 #define BCM_I2C_ERROR 0x04
60 #define BCM_BSC_WRITE(_sc, _off, _val) \
61 bus_space_write_4((_sc)->sc_bst, (_sc)->sc_bsh, _off, _val)
62 #define BCM_BSC_READ(_sc, _off) \
63 bus_space_read_4((_sc)->sc_bst, (_sc)->sc_bsh, _off)
65 #define BCM_BSC_LOCK(_sc) \
66 mtx_lock(&(_sc)->sc_mtx)
67 #define BCM_BSC_UNLOCK(_sc) \
68 mtx_unlock(&(_sc)->sc_mtx)
70 #endif /* _BCM2835_BSCVAR_H_ */