1 /* $OpenBSD: pcf8584var.h,v 1.5 2007/10/20 18:46:21 kettenis Exp $ */ 2 3 /* 4 * Copyright (c) 2006 David Gwynne <dlg@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 struct pcfiic_softc { 20 struct device sc_dev; 21 22 bus_space_tag_t sc_iot; 23 bus_space_handle_t sc_ioh; 24 bus_space_handle_t sc_ioh2; 25 int sc_master; 26 u_int8_t sc_addr; 27 u_int8_t sc_clock; 28 u_int8_t sc_regmap[2]; 29 30 int sc_poll; 31 32 struct i2c_controller sc_i2c; 33 struct rwlock sc_lock; 34 }; 35 36 /* clock divisor settings */ 37 #define PCF_CLOCK_3 0x00 /* 3 MHz */ 38 #define PCF_CLOCK_4_43 0x10 /* 4.43 MHz */ 39 #define PCF_CLOCK_6 0x14 /* 6 MHz */ 40 #define PCF_CLOCK_8 0x18 /* 8 MHz */ 41 #define PCF_CLOCK_12 0x1c /* 12 MHz */ 42 43 /* SCL frequency settings */ 44 #define PCF_FREQ_90 0x00 /* 90 kHz */ 45 #define PCF_FREQ_45 0x01 /* 45 kHz */ 46 #define PCF_FREQ_11 0x02 /* 11 kHz */ 47 #define PCF_FREQ_1_5 0x03 /* 1.5 kHz */ 48 49 void pcfiic_attach(struct pcfiic_softc *, i2c_addr_t, u_int8_t, int, 50 void (*)(struct device *, struct i2cbus_attach_args *, void *), 51 void *); 52 int pcfiic_intr(void *); 53