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ingenic_ohci.c revision 1.1 
      1 /*	$NetBSD: ingenic_ohci.c,v 1.1 2015/03/08 17:14:27 macallan Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2015 Michael Lorenz
      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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: ingenic_ohci.c,v 1.1 2015/03/08 17:14:27 macallan Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 #include <sys/mutex.h>
     36 #include <sys/bus.h>
     37 #include <sys/workqueue.h>
     38 
     39 #include <mips/ingenic/ingenic_var.h>
     40 #include <mips/ingenic/ingenic_regs.h>
     41 
     42 #include <dev/usb/usb.h>
     43 #include <dev/usb/usbdi.h>
     44 #include <dev/usb/usbdivar.h>
     45 #include <dev/usb/usb_mem.h>
     46 
     47 #include <dev/usb/ohcireg.h>
     48 #include <dev/usb/ohcivar.h>
     49 
     50 #include "opt_ingenic.h"
     51 
     52 static int ingenic_ohci_match(device_t, struct cfdata *, void *);
     53 static void ingenic_ohci_attach(device_t, device_t, void *);
     54 
     55 CFATTACH_DECL_NEW(ingenic_ohci, sizeof(struct ohci_softc),
     56     ingenic_ohci_match, ingenic_ohci_attach, NULL, NULL);
     57 
     58 device_t ingenic_ohci = NULL;
     59 
     60 /* ARGSUSED */
     61 static int
     62 ingenic_ohci_match(device_t parent, struct cfdata *match, void *aux)
     63 {
     64 	struct apbus_attach_args *aa = aux;
     65 
     66 	if (strcmp(aa->aa_name, "ohci") != 0)
     67 		return 0;
     68 
     69 	return 1;
     70 }
     71 
     72 /* ARGSUSED */
     73 static void
     74 ingenic_ohci_attach(device_t parent, device_t self, void *aux)
     75 {
     76 	struct ohci_softc *sc = device_private(self);
     77 	struct apbus_attach_args *aa = aux;
     78 	void *ih;
     79 	int error, status;
     80 
     81 	sc->sc_dev = self;
     82 
     83 	sc->iot = aa->aa_bst;
     84 	sc->sc_bus.dmatag = aa->aa_dmat;
     85 	sc->sc_bus.hci_private = sc;
     86 	sc->sc_size = 0x1000;
     87 
     88 	if (aa->aa_addr == 0)
     89 		aa->aa_addr = JZ_OHCI_BASE;
     90 
     91 	error = bus_space_map(aa->aa_bst, aa->aa_addr, 0x1000, 0, &sc->ioh);
     92 	if (error) {
     93 		aprint_error_dev(self,
     94 		    "can't map registers for %s: %d\n", aa->aa_name, error);
     95 		return;
     96 	}
     97 
     98 	aprint_naive(": OHCI USB controller\n");
     99 	aprint_normal(": OHCI USB controller\n");
    100 
    101 	/* Disable OHCI interrupts */
    102 	bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
    103 	    OHCI_ALL_INTRS);
    104 
    105 	ih = evbmips_intr_establish(5, ohci_intr, sc);
    106 
    107 	if (ih == NULL) {
    108 		aprint_error_dev(self, "failed to establish interrupt %d\n",
    109 		     5);
    110 		goto fail;
    111 	}
    112 
    113 	/* we don't handle endianess in bus space */
    114 	sc->sc_endian = OHCI_LITTLE_ENDIAN;
    115 
    116 	status = ohci_init(sc);
    117 	if (status != USBD_NORMAL_COMPLETION) {
    118 		aprint_error_dev(self, "init failed, error=%d\n", status);
    119 		goto fail;
    120 	}
    121 
    122 	/* Attach USB device */
    123 	sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint);
    124 	ingenic_ohci = self;
    125 	return;
    126 
    127 fail:
    128 	if (ih) {
    129 		evbmips_intr_disestablish(ih);
    130 	}
    131 	bus_space_unmap(sc->iot, sc->ioh, 0x1000);
    132 }
    133