sys/dev/pcmcia/slhci_pcmcia.c

   1 /* $NetBSD: slhci_pcmcia.c,v 1.5 2009/05/12 13:18:04 cegger Exp $ */
   2 /*
   3  * Not (c) 2007 Matthew Orgass
   4  * This file is public domain, meaning anyone can make any use of part or all
   5  * of this file including copying into other works without credit.  Any use,
   6  * modified or not, is solely the responsibility of the user.  If this file is
   7  * part of a collection then use in the collection is governed by the terms of
   8  * the collection.
   9  */
  10
  11 /* Glue for RATOC USB HOST CF+ Card (SL811HS chip) */
  12
  13 #include <sys/cdefs.h>
  14 __KERNEL_RCSID(0, "$NetBSD: slhci_pcmcia.c,v 1.5 2009/05/12 13:18:04 cegger Exp $");
  15
  16 #include <sys/param.h>
  17 #include <sys/device.h>
  18 #include <sys/queue.h>
  19 #include <sys/gcq.h>
  20 #include <sys/systm.h>
  21 #include <sys/errno.h>
  22
  23 #include <sys/bus.h>
  24 #include <dev/pcmcia/pcmciareg.h>
  25 #include <dev/pcmcia/pcmciavar.h>
  26 #include <dev/pcmcia/pcmciadevs.h>
  27
  28 #include <dev/usb/usb.h>
  29 #include <dev/usb/usb_port.h>
  30 #include <dev/usb/usbdi.h>
  31 #include <dev/usb/usbdivar.h>
  32
  33 #include <dev/ic/sl811hsvar.h>
  34
  35 struct slhci_pcmcia_softc {
  36         struct slhci_softc sc_slhci;
  37
  38         struct pcmcia_function *sc_pf;
  39         void * sc_ih;
  40         int sc_flags;
  41 #define PFL_ENABLED             (0x1)
  42 };
  43
  44
  45 int slhci_pcmcia_probe(device_t, cfdata_t, void *);
  46 void slhci_pcmcia_attach(device_t, device_t, void *);
  47 int slhci_pcmcia_detach(device_t, int);
  48 int slhci_pcmcia_validate_config(struct pcmcia_config_entry *);
  49 int slhci_pcmcia_enable(struct slhci_pcmcia_softc *, int);
  50
  51 CFATTACH_DECL_NEW(slhci_pcmcia, sizeof(struct slhci_pcmcia_softc),
  52     slhci_pcmcia_probe, slhci_pcmcia_attach, slhci_pcmcia_detach,
  53     slhci_activate);
  54
  55 /* Ratoc has two PCMCIA products with id 1.
  56  * Ratoc has a firmware update that modifies the CIS.  The new CIS may
  57  * need a new entry. */
  58 static const struct pcmcia_product slhci_pcmcia_products[] = {
  59         { PCMCIA_VENDOR_RATOC, PCMCIA_PRODUCT_RATOC_REX_CFU1,
  60           PCMCIA_CIS_RATOC_REX_CFU1 },
  61 };
  62 static const size_t slhci_pcmcia_nproducts =
  63         sizeof(slhci_pcmcia_products) / sizeof(slhci_pcmcia_products[0]);
  64
  65 int
  66 slhci_pcmcia_probe(device_t parent, cfdata_t match, void *aux)
  67 {
  68         struct pcmcia_attach_args *pa = aux;
  69
  70         if (pcmcia_product_lookup(pa, slhci_pcmcia_products,
  71             slhci_pcmcia_nproducts, sizeof(slhci_pcmcia_products[0]), NULL))
  72                 return 1;
  73
  74         return 0;
  75 }
  76
  77 int
  78 slhci_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
  79 {
  80         if (cfe->num_iospace != 1 || cfe->num_memspace != 0)
  81                 return EINVAL;
  82         return 0;
  83 }
  84
  85 void
  86 slhci_pcmcia_attach(device_t parent, device_t self, void *aux)
  87 {
  88         struct slhci_pcmcia_softc *psc = device_private(self);
  89         struct pcmcia_attach_args *pa = aux;
  90         struct pcmcia_function *pf = pa->pf;
  91
  92         psc->sc_slhci.sc_dev = self;
  93
  94         psc->sc_pf = pf;
  95         psc->sc_flags = 0;
  96
  97         slhci_pcmcia_enable(psc, 1);
  98
  99         return;
 100 }
 101
 102 int
 103 slhci_pcmcia_detach(device_t self, int flags)
 104 {
 105         struct slhci_pcmcia_softc *psc = device_private(self);
 106
 107         slhci_pcmcia_enable(psc, 0);
 108
 109         return slhci_detach(&psc->sc_slhci, flags);
 110 }
 111
 112 int
 113 slhci_pcmcia_enable(struct slhci_pcmcia_softc *psc, int enable)
 114 {
 115         struct pcmcia_function *pf;
 116         struct pcmcia_io_handle *pioh;
 117         struct slhci_softc *sc;
 118         int error;
 119
 120         pf = psc->sc_pf;
 121         sc = &psc->sc_slhci;
 122
 123         if (enable) {
 124                 if (psc->sc_flags & PFL_ENABLED)
 125                         return 0;
 126
 127                 error = pcmcia_function_configure(pf,
 128                     slhci_pcmcia_validate_config);
 129                 if (error) {
 130                         printf("%s: configure failed, error=%d\n",
 131                             SC_NAME(sc), error);
 132                         return 1;
 133                 }
 134
 135                 pioh = &pf->cfe->iospace[0].handle;
 136
 137                 /* The data port is repeated three times; using a stride of
 138                  * 2 prevents read/write errors on a Clio C-1000 hpcmips
 139                  * system.
 140                  */
 141                 slhci_preinit(sc, NULL, pioh->iot, pioh->ioh, 100, 2);
 142
 143                 psc->sc_ih = pcmcia_intr_establish(pf, IPL_HARDUSB,
 144                     slhci_intr, sc);
 145
 146                 if (psc->sc_ih == NULL) {
 147                         printf("%s: unable to establish interrupt\n",
 148                             SC_NAME(sc));
 149                         goto fail1;
 150                 }
 151
 152                 if (pcmcia_function_enable(pf)) {
 153                         printf("%s: function enable failed\n", SC_NAME(sc));
 154                         goto fail2;
 155                 }
 156
 157                 if (slhci_attach(sc)) {
 158                         printf("%s: slhci_attach failed\n", SC_NAME(sc));
 159                         goto fail3;
 160                 }
 161
 162                 psc->sc_flags |= PFL_ENABLED;
 163                 return 0;
 164         } else {
 165                 if (!(psc->sc_flags & PFL_ENABLED))
 166                         return 1;
 167                 psc->sc_flags &= ~PFL_ENABLED;
 168 fail3:
 169                 pcmcia_function_disable(pf);
 170 fail2:
 171                 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
 172 fail1:
 173                 pcmcia_function_unconfigure(pf);
 174
 175                 return 1;
 176         }
 177 }
 178
 179