1 /*- 2 * Copyright (c) 2012 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Matt Thomas of 3am Software Foundry. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "locators.h" 31 32 #include <sys/cdefs.h> 33 34 __KERNEL_RCSID(1, "$NetBSD: bcm53xx_i2c.c,v 1.1 2012/09/01 00:04:44 matt Exp $"); 35 36 #include <sys/bus.h> 37 #include <sys/device.h> 38 #include <sys/intr.h> 39 #include <sys/systm.h> 40 41 #include <arm/broadcom/bcm53xx_reg.h> 42 #include <arm/broadcom/bcm53xx_var.h> 43 44 static int bcmi2c_ccb_match(device_t, cfdata_t, void *); 45 static void bcmi2c_ccb_attach(device_t, device_t, void *); 46 47 struct bcmi2c_softc { 48 device_t sc_dev; 49 bus_space_tag_t sc_bst; 50 bus_space_handle_t sc_bsh; 51 bus_dma_tag_t sc_dmat; 52 }; 53 54 CFATTACH_DECL_NEW(bcmi2c_ccb, sizeof(struct bcmi2c_softc), 55 bcmi2c_ccb_match, bcmi2c_ccb_attach, NULL, NULL); 56 57 static int 58 bcmi2c_ccb_match(device_t parent, cfdata_t cf, void *aux) 59 { 60 struct bcmccb_attach_args * const ccbaa = aux; 61 const struct bcm_locators * const loc = &ccbaa->ccbaa_loc; 62 63 if (strcmp(cf->cf_name, loc->loc_name)) 64 return 0; 65 66 KASSERT(cf->cf_loc[BCMCCBCF_PORT] == BCMCCBCF_PORT_DEFAULT); 67 68 return 1; 69 } 70 71 static void 72 bcmi2c_ccb_attach(device_t parent, device_t self, void *aux) 73 { 74 struct bcmi2c_softc * const sc = device_private(self); 75 struct bcmccb_attach_args * const ccbaa = aux; 76 const struct bcm_locators * const loc = &ccbaa->ccbaa_loc; 77 78 sc->sc_dev = self; 79 80 sc->sc_bst = ccbaa->ccbaa_ccb_bst; 81 sc->sc_dmat = ccbaa->ccbaa_dmat; 82 bus_space_subregion(sc->sc_bst, ccbaa->ccbaa_ccb_bsh, 83 loc->loc_offset, loc->loc_size, &sc->sc_bsh); 84 85 aprint_naive("\n"); 86 aprint_normal("\n"); 87 } 88