sys/arch/x68k/dev/slhci_intio.c

   1 /*      $NetBSD: slhci_intio.c,v 1.11 2008/05/23 13:27:40 isaki Exp $   */
   2
   3 /*
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Tetsuya Isaki.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * USB part of Nereid Ethernet/USB/Memory board
  34  */
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: slhci_intio.c,v 1.11 2008/05/23 13:27:40 isaki Exp $");
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/device.h>
  42
  43 #include <machine/bus.h>
  44 #include <machine/cpu.h>
  45
  46 #include <dev/usb/usb.h>
  47 #include <dev/usb/usbdi.h>
  48 #include <dev/usb/usbdivar.h>
  49
  50 #include <dev/ic/sl811hsreg.h>
  51 #include <dev/ic/sl811hsvar.h>
  52
  53 #include <arch/x68k/dev/intiovar.h>
  54
  55 #include <arch/x68k/dev/slhci_intio_var.h>
  56
  57 static int  slhci_intio_match(device_t, cfdata_t, void *);
  58 static void slhci_intio_attach(device_t, device_t, void *);
  59 static void slhci_intio_enable_power(void *, enum power_change);
  60 static void slhci_intio_enable_intr(void *, int);
  61
  62 CFATTACH_DECL_NEW(slhci_intio, sizeof(struct slhci_intio_softc),
  63     slhci_intio_match, slhci_intio_attach, NULL, NULL);
  64
  65 #define INTR_ON         1
  66 #define INTR_OFF        0
  67
  68 static int
  69 slhci_intio_match(device_t parent, cfdata_t cf, void *aux)
  70 {
  71         struct intio_attach_args *ia = aux;
  72         bus_space_tag_t iot = ia->ia_bst;
  73         bus_space_handle_t ioh;
  74         bus_space_handle_t nch;
  75         int nc_addr;
  76         int nc_size;
  77
  78         if (ia->ia_addr == INTIOCF_ADDR_DEFAULT)
  79                 ia->ia_addr = SLHCI_INTIO_ADDR1;
  80         if (ia->ia_intr == INTIOCF_INTR_DEFAULT)
  81                 ia->ia_intr = SLHCI_INTIO_INTR1;
  82
  83         /* fixed parameters */
  84         if ( !(ia->ia_addr == SLHCI_INTIO_ADDR1 &&
  85                ia->ia_intr == SLHCI_INTIO_INTR1   ) &&
  86              !(ia->ia_addr == SLHCI_INTIO_ADDR2 &&
  87                ia->ia_intr == SLHCI_INTIO_INTR2   ) )
  88                 return 0;
  89
  90         /* Whether the control port is accessible or not */
  91         nc_addr = ia->ia_addr + NEREID_ADDR_OFFSET;
  92         nc_size = 0x02;
  93         if (badbaddr((void *)IIOV(nc_addr)))
  94                 return 0;
  95
  96         /* Map two I/O spaces */
  97         ia->ia_size = SL11_PORTSIZE * 2;
  98         if (bus_space_map(iot, ia->ia_addr, ia->ia_size,
  99                         BUS_SPACE_MAP_SHIFTED, &ioh))
 100                 return 0;
 101
 102         if (bus_space_map(iot, nc_addr, nc_size,
 103                         BUS_SPACE_MAP_SHIFTED, &nch))
 104                 return 0;
 105
 106         bus_space_unmap(iot, ioh, ia->ia_size);
 107         bus_space_unmap(iot, nch, nc_size);
 108
 109         return 1;
 110 }
 111
 112 static void
 113 slhci_intio_attach(device_t parent, device_t self, void *aux)
 114 {
 115         struct slhci_intio_softc *isc = device_private(self);
 116         struct slhci_softc *sc = &isc->sc_sc;
 117         struct intio_attach_args *ia = aux;
 118         bus_space_tag_t iot = ia->ia_bst;
 119         bus_space_handle_t ioh;
 120         int nc_addr;
 121         int nc_size;
 122
 123         sc->sc_dev = self;
 124         sc->sc_bus.hci_private = self;
 125
 126         printf(": Nereid USB\n");
 127
 128         /* Map I/O space */
 129         if (bus_space_map(iot, ia->ia_addr, SL11_PORTSIZE * 2,
 130                         BUS_SPACE_MAP_SHIFTED, &ioh)) {
 131                 printf("%s: can't map I/O space\n",
 132                         device_xname(self));
 133                 return;
 134         }
 135
 136         nc_addr = ia->ia_addr + NEREID_ADDR_OFFSET;
 137         nc_size = 0x02;
 138         if (bus_space_map(iot, nc_addr, nc_size,
 139                         BUS_SPACE_MAP_SHIFTED, &isc->sc_nch)) {
 140                 printf("%s: can't map I/O control space\n",
 141                         device_xname(self));
 142                 return;
 143         }
 144
 145         /* Initialize sc */
 146         slhci_preinit(sc, slhci_intio_enable_power, iot, ioh, 30,
 147             SL11_IDX_DATA);
 148
 149         /* Establish the interrupt handler */
 150         if (intio_intr_establish(ia->ia_intr, "slhci", slhci_intr, sc)) {
 151                 printf("%s: can't establish interrupt\n",
 152                         device_xname(self));
 153                 return;
 154         }
 155
 156         /* Reset controller */
 157         bus_space_write_1(iot, isc->sc_nch, NEREID_CTRL, NEREID_CTRL_RESET);
 158         delay(40000);
 159
 160         slhci_intio_enable_intr(sc, INTR_ON);
 161
 162         /* Attach SL811HS/T */
 163         if (slhci_attach(sc))
 164                 return;
 165 }
 166
 167 static void
 168 slhci_intio_enable_power(void *arg, enum power_change mode)
 169 {
 170         struct slhci_intio_softc *sc = arg;
 171         bus_space_tag_t iot = sc->sc_sc.sc_iot;
 172         u_int8_t r;
 173
 174         r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
 175         if (mode == POWER_ON)
 176                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 177                         r |  NEREID_CTRL_POWER);
 178         else
 179                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 180                         r & ~NEREID_CTRL_POWER);
 181 }
 182
 183 static void
 184 slhci_intio_enable_intr(void *arg, int mode)
 185 {
 186         struct slhci_intio_softc *sc = arg;
 187         bus_space_tag_t iot = sc->sc_sc.sc_iot;
 188         u_int8_t r;
 189
 190         r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
 191         if (mode == INTR_ON)
 192                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 193                         r |  NEREID_CTRL_INTR);
 194         else
 195                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 196                         r & ~NEREID_CTRL_INTR);
 197 }
 198