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tegra_ahcisata.c revision 1.1 
      1 /* $NetBSD: tegra_ahcisata.c,v 1.1 2015/03/29 10:41:59 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2015 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include "locators.h"
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: tegra_ahcisata.c,v 1.1 2015/03/29 10:41:59 jmcneill Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/bus.h>
     36 #include <sys/device.h>
     37 #include <sys/intr.h>
     38 #include <sys/systm.h>
     39 #include <sys/kernel.h>
     40 
     41 #include <dev/ata/atavar.h>
     42 #include <dev/ic/ahcisatavar.h>
     43 
     44 #include <arm/nvidia/tegra_var.h>
     45 
     46 static int	tegra_ahcisata_match(device_t, cfdata_t, void *);
     47 static void	tegra_ahcisata_attach(device_t, device_t, void *);
     48 
     49 struct tegra_ahcisata_softc {
     50 	struct ahci_softc	sc;
     51 	void			*sc_ih;
     52 };
     53 
     54 CFATTACH_DECL_NEW(tegra_ahcisata, sizeof(struct tegra_ahcisata_softc),
     55 	tegra_ahcisata_match, tegra_ahcisata_attach, NULL, NULL);
     56 
     57 static int
     58 tegra_ahcisata_match(device_t parent, cfdata_t cf, void *aux)
     59 {
     60 	return 1;
     61 }
     62 
     63 static void
     64 tegra_ahcisata_attach(device_t parent, device_t self, void *aux)
     65 {
     66 	struct tegra_ahcisata_softc * const sc = device_private(self);
     67 	struct tegraio_attach_args * const tio = aux;
     68 	const struct tegra_locators * const loc = &tio->tio_loc;
     69 
     70 	sc->sc.sc_atac.atac_dev = self;
     71 	sc->sc.sc_dmat = tio->tio_dmat;
     72 	sc->sc.sc_ahcit = tio->tio_bst;
     73 	bus_space_subregion(tio->tio_bst, tio->tio_bsh,
     74 	    loc->loc_offset, loc->loc_size, &sc->sc.sc_ahcis);
     75 	sc->sc.sc_ahci_ports = 1;
     76 
     77 	aprint_naive("\n");
     78 	aprint_normal(": SATA\n");
     79 
     80 	sc->sc_ih = intr_establish(loc->loc_intr, IPL_BIO, IST_LEVEL,
     81 	    ahci_intr, &sc->sc);
     82 	if (sc->sc_ih == NULL) {
     83 		aprint_error_dev(self, "couldn't establish interrupt %d\n",
     84 		    loc->loc_intr);
     85 		return;
     86 	}
     87 	aprint_normal_dev(self, "interrupting on irq %d\n", loc->loc_intr);
     88 
     89 	ahci_attach(&sc->sc);
     90 }
     91