sys/arch/arm/sa11x0/sa11x1_pcic.c

   1 /*      $NetBSD: sa11x1_pcic.c,v 1.19 2008/06/03 13:45:22 rafal 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 IWAMOTO Toshihiro.
   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 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: sa11x1_pcic.c,v 1.19 2008/06/03 13:45:22 rafal Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/types.h>
  38 #include <sys/conf.h>
  39 #include <sys/file.h>
  40 #include <sys/device.h>
  41 #include <sys/kernel.h>
  42 #include <sys/kthread.h>
  43 #include <sys/malloc.h>
  44
  45 #include <machine/bus.h>
  46
  47 #include <dev/pcmcia/pcmciachip.h>
  48 #include <dev/pcmcia/pcmciavar.h>
  49 #include <arm/sa11x0/sa11x0_reg.h>
  50 #include <arm/sa11x0/sa11x0_var.h>
  51 #include <arm/sa11x0/sa1111_reg.h>
  52 #include <arm/sa11x0/sa1111_var.h>
  53 #include <arm/sa11x0/sa11x1_pcicreg.h>
  54 #include <arm/sa11x0/sa11xx_pcicvar.h>
  55 #include <arm/sa11x0/sa11x1_pcicvar.h>
  56
  57 #include "sacpcic.h"
  58
  59 static int      sacpcic_print(void *, const char *);
  60
  61 static void
  62 sacpcic_config_deferred(device_t dev)
  63 {
  64         struct sacpcic_softc *sc = device_private(dev);
  65         struct sapcic_socket *so;
  66         int i;
  67
  68         for (i = 0; i < 2; i++) {
  69                 so = &sc->sc_socket[i];
  70                 sapcic_kthread_create(so);
  71
  72                 sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie,
  73                     i ? IRQ_S1_CDVALID : IRQ_S0_CDVALID,
  74                     IST_EDGE_RAISE, IPL_BIO, sapcic_intr, so);
  75         }
  76 }
  77
  78 void
  79 sacpcic_attach_common(struct sacc_softc *psc, struct sacpcic_softc *sc,
  80     void *aux, void (* socket_setup_hook)(struct sapcic_socket *))
  81 {
  82         int i;
  83         struct pcmciabus_attach_args paa;
  84
  85         aprint_normal("\n");
  86
  87         sc->sc_pc.sc_iot = psc->sc_iot;
  88         sc->sc_ioh = psc->sc_ioh;
  89
  90         mutex_init(&sc->sc_pc.sc_lock, MUTEX_DEFAULT, IPL_NONE);
  91
  92         for (i = 0; i < 2; i++) {
  93                 sc->sc_socket[i].sc = (struct sapcic_softc *)sc;
  94                 sc->sc_socket[i].socket = i;
  95                 sc->sc_socket[i].pcictag_cookie = psc;
  96                 sc->sc_socket[i].pcictag = NULL;
  97                 sc->sc_socket[i].event_thread = NULL;
  98                 sc->sc_socket[i].event = 0;
  99                 sc->sc_socket[i].laststatus = SAPCIC_CARD_INVALID;
 100                 sc->sc_socket[i].shutdown = 0;
 101
 102                 socket_setup_hook(&sc->sc_socket[i]);
 103
 104                 paa.paa_busname = "pcmcia";
 105                 paa.pct = (pcmcia_chipset_tag_t)&sa11x0_pcmcia_functions;
 106                 paa.pch = (pcmcia_chipset_handle_t)&sc->sc_socket[i];
 107                 paa.iobase = 0;
 108                 paa.iosize = 0x4000000;
 109
 110                 sc->sc_socket[i].pcmcia =
 111                     config_found_ia(sc->sc_pc.sc_dev, "pcmciabus", &paa,
 112                                     sacpcic_print);
 113         }
 114
 115         config_interrupts(sc->sc_pc.sc_dev, sacpcic_config_deferred);
 116 }
 117
 118 int
 119 sacpcic_print(void *aux, const char *name)
 120 {
 121
 122         return UNCONF;
 123 }
 124
 125 int
 126 sacpcic_read(struct sapcic_socket *so, int reg)
 127 {
 128         int cr, bit;
 129         struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc;
 130
 131         cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_SR);
 132
 133         switch (reg) {
 134         case SAPCIC_STATUS_CARD:
 135                 bit = (so->socket ? SR_S1_CARDDETECT : SR_S0_CARDDETECT) & cr;
 136                 if (bit)
 137                         return SAPCIC_CARD_INVALID;
 138                 else
 139                         return SAPCIC_CARD_VALID;
 140
 141         case SAPCIC_STATUS_VS1:
 142                 bit = (so->socket ? SR_S1_VS1 : SR_S0_VS1);
 143                 return (bit & cr);
 144
 145         case SAPCIC_STATUS_VS2:
 146                 bit = (so->socket ? SR_S1_VS2 : SR_S0_VS2);
 147                 return (bit & cr);
 148
 149         case SAPCIC_STATUS_READY:
 150                 bit = (so->socket ? SR_S1_READY : SR_S0_READY);
 151                 return (bit & cr);
 152
 153         default:
 154                 panic("sacpcic_read: bogus register");
 155         }
 156 }
 157
 158 void
 159 sacpcic_write(struct sapcic_socket *so, int reg, int arg)
 160 {
 161         int s, oldvalue, newvalue, mask;
 162         struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc;
 163
 164         s = splhigh();
 165         oldvalue = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR);
 166
 167         switch (reg) {
 168         case SAPCIC_CONTROL_RESET:
 169                 mask = so->socket ? CR_S1_RST : CR_S0_RST;
 170
 171                 newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
 172                 break;
 173
 174         case SAPCIC_CONTROL_LINEENABLE:
 175                 mask = so->socket ? CR_S1_FLT : CR_S0_FLT;
 176
 177                 newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
 178                 break;
 179
 180         case SAPCIC_CONTROL_WAITENABLE:
 181                 mask = so->socket ? CR_S1_PWAITEN : CR_S0_PWAITEN;
 182
 183                 newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
 184                 break;
 185
 186         case SAPCIC_CONTROL_POWERSELECT:
 187                 mask = so->socket ? CR_S1_PSE : CR_S0_PSE;
 188                 newvalue = oldvalue & ~mask;
 189
 190                 switch (arg) {
 191                 case SAPCIC_POWER_3V:
 192                         break;
 193                 case SAPCIC_POWER_5V:
 194                         newvalue |= mask;
 195                         break;
 196                 default:
 197                         splx(s);
 198                         panic("sacpcic_write: bogus arg");
 199                 }
 200                 break;
 201
 202         default:
 203                 splx(s);
 204                 panic("sacpcic_write: bogus register");
 205         }
 206         bus_space_write_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR, newvalue);
 207         splx(s);
 208 }
 209
 210 void
 211 sacpcic_clear_intr(int arg)
 212 {
 213         /* sacc_intr_dispatch takes care of intr status */
 214 }
 215
 216 void *
 217 sacpcic_intr_establish(struct sapcic_socket *so, int level,
 218     int (*ih_fun)(void *), void *ih_arg)
 219 {
 220         int irq;
 221
 222         irq = so->socket ? IRQ_S1_READY : IRQ_S0_READY;
 223         return sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie, irq,
 224                                     IST_EDGE_FALL, level, ih_fun, ih_arg);
 225 }
 226
 227 void
 228 sacpcic_intr_disestablish(struct sapcic_socket *so, void *ih)
 229 {
 230         sacc_intr_disestablish((sacc_chipset_tag_t)so->pcictag_cookie, ih);
 231 }