1/*-
2 * Copyright (c) 1998 Nicolas Souchu
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: iiconf.c,v 1.2 1998/10/31 11:31:07 nsouch Exp $
27 *
28 */
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/kernel.h>
32#include <sys/malloc.h>
33#include <sys/module.h>
34#include <sys/bus.h>

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60device_t
61iicbus_alloc_bus(device_t parent)
62{
63 device_t child;
64
65 /* add the bus to the parent */
66 child = device_add_child(parent, "iicbus", -1, NULL);
67
68 if (child)
69 device_set_desc(child, "Philips I2C bus");
70
71 return (child);
72}
73
74static int
75iicbus_poll(struct iicbus_softc *sc, int how)
76{
77 int error;
78

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159
160 /* wakeup waiting processes */
161 wakeup(sc);
162
163 return (0);
164}
165
166/*
167 * iicbus_block_write()
168 *
169 * Write a block of data to slave ; start/stop protocol managed
170 */
171int
172iicbus_block_write(device_t bus, u_char slave, char *buf, int len, int *sent)
173{
174 u_char addr = slave & ~LSB;

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215{
216 uintptr_t addr;
217 device_t parent = device_get_parent(dev);
218
219 BUS_READ_IVAR(parent, dev, IICBUS_IVAR_ADDR, &addr);
220
221 return ((u_char)addr);
222}