/* $OpenBSD: pcf8584var.h,v 1.5 2007/10/20 18:46:21 kettenis Exp $ */ /* * Copyright (c) 2006 David Gwynne <dlg@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ struct pcfiic_softc { struct device sc_dev; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; bus_space_handle_t sc_ioh2; int sc_master; u_int8_t sc_addr; u_int8_t sc_clock; u_int8_t sc_regmap[2]; int sc_poll; struct i2c_controller sc_i2c; struct rwlock sc_lock; }; /* clock divisor settings */ #define PCF_CLOCK_3 0x00 /* 3 MHz */ #define PCF_CLOCK_4_43 0x10 /* 4.43 MHz */ #define PCF_CLOCK_6 0x14 /* 6 MHz */ #define PCF_CLOCK_8 0x18 /* 8 MHz */ #define PCF_CLOCK_12 0x1c /* 12 MHz */ /* SCL frequency settings */ #define PCF_FREQ_90 0x00 /* 90 kHz */ #define PCF_FREQ_45 0x01 /* 45 kHz */ #define PCF_FREQ_11 0x02 /* 11 kHz */ #define PCF_FREQ_1_5 0x03 /* 1.5 kHz */ void pcfiic_attach(struct pcfiic_softc *, i2c_addr_t, u_int8_t, int, void (*)(struct device *, struct i2cbus_attach_args *, void *), void *); int pcfiic_intr(void *);