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slhci_pcmcia.c revision 1.6.4.1 
      1 /* $NetBSD: slhci_pcmcia.c,v 1.6.4.1 2011/03/05 20:54:01 rmind 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 1.6.4.1 2011/03/05 20:54:01 rmind 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/usbdi.h>
     30 #include <dev/usb/usbdivar.h>
     31 
     32 #include <dev/ic/sl811hsvar.h>
     33 
     34 struct slhci_pcmcia_softc {
     35 	struct slhci_softc sc_slhci;
     36 
     37 	struct pcmcia_function *sc_pf;
     38 	void * sc_ih;
     39 	int sc_flags;
     40 #define PFL_ENABLED 		(0x1)
     41 };
     42 
     43 
     44 int slhci_pcmcia_probe(device_t, cfdata_t, void *);
     45 void slhci_pcmcia_attach(device_t, device_t, void *);
     46 int slhci_pcmcia_detach(device_t, int);
     47 int slhci_pcmcia_validate_config(struct pcmcia_config_entry *);
     48 int slhci_pcmcia_enable(struct slhci_pcmcia_softc *, int);
     49 
     50 CFATTACH_DECL_NEW(slhci_pcmcia, sizeof(struct slhci_pcmcia_softc),
     51     slhci_pcmcia_probe, slhci_pcmcia_attach, slhci_pcmcia_detach,
     52     slhci_activate);
     53 
     54 /* Ratoc has two PCMCIA products with id 1.
     55  * Ratoc has a firmware update that modifies the CIS.  The new CIS may
     56  * need a new entry. */
     57 static const struct pcmcia_product slhci_pcmcia_products[] = {
     58 	{ PCMCIA_VENDOR_RATOC, PCMCIA_PRODUCT_RATOC_REX_CFU1,
     59 	  PCMCIA_CIS_RATOC_REX_CFU1 },
     60 };
     61 static const size_t slhci_pcmcia_nproducts =
     62 	sizeof(slhci_pcmcia_products) / sizeof(slhci_pcmcia_products[0]);
     63 
     64 int
     65 slhci_pcmcia_probe(device_t parent, cfdata_t match, void *aux)
     66 {
     67 	struct pcmcia_attach_args *pa = aux;
     68 
     69 	if (pcmcia_product_lookup(pa, slhci_pcmcia_products,
     70 	    slhci_pcmcia_nproducts, sizeof(slhci_pcmcia_products[0]), NULL))
     71 		return 1;
     72 
     73 	return 0;
     74 }
     75 
     76 int
     77 slhci_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
     78 {
     79 	if (cfe->num_iospace != 1 || cfe->num_memspace != 0)
     80 		return EINVAL;
     81 	return 0;
     82 }
     83 
     84 void
     85 slhci_pcmcia_attach(device_t parent, device_t self, void *aux)
     86 {
     87 	struct slhci_pcmcia_softc *psc = device_private(self);
     88 	struct pcmcia_attach_args *pa = aux;
     89 	struct pcmcia_function *pf = pa->pf;
     90 
     91 	psc->sc_slhci.sc_dev = self;
     92 
     93 	psc->sc_pf = pf;
     94 	psc->sc_flags = 0;
     95 
     96 	slhci_pcmcia_enable(psc, 1);
     97 
     98 	return;
     99 }
    100 
    101 int
    102 slhci_pcmcia_detach(device_t self, int flags)
    103 {
    104 	struct slhci_pcmcia_softc *psc = device_private(self);
    105 
    106 	slhci_pcmcia_enable(psc, 0);
    107 
    108 	return slhci_detach(&psc->sc_slhci, flags);
    109 }
    110 
    111 int
    112 slhci_pcmcia_enable(struct slhci_pcmcia_softc *psc, int enable)
    113 {
    114 	struct pcmcia_function *pf;
    115 	struct pcmcia_io_handle *pioh;
    116 	struct slhci_softc *sc;
    117 	int error;
    118 
    119 	pf = psc->sc_pf;
    120 	sc = &psc->sc_slhci;
    121 
    122 	if (enable) {
    123 		if (psc->sc_flags & PFL_ENABLED)
    124 			return 0;
    125 
    126 		error = pcmcia_function_configure(pf,
    127 		    slhci_pcmcia_validate_config);
    128 		if (error) {
    129 			printf("%s: configure failed, error=%d\n",
    130 			    SC_NAME(sc), error);
    131 			return 1;
    132 		}
    133 
    134 		pioh = &pf->cfe->iospace[0].handle;
    135 
    136 		/* The data port is repeated three times; using a stride of
    137 		 * 2 prevents read/write errors on a Clio C-1000 hpcmips
    138 		 * system.
    139 		 */
    140 		slhci_preinit(sc, NULL, pioh->iot, pioh->ioh, 100, 2);
    141 
    142 		psc->sc_ih = pcmcia_intr_establish(pf, IPL_HARDUSB,
    143 		    slhci_intr, sc);
    144 
    145 		if (psc->sc_ih == NULL) {
    146 			printf("%s: unable to establish interrupt\n",
    147 			    SC_NAME(sc));
    148 			goto fail1;
    149 		}
    150 
    151 		if (pcmcia_function_enable(pf)) {
    152 			printf("%s: function enable failed\n", SC_NAME(sc));
    153 			goto fail2;
    154 		}
    155 
    156 		if (slhci_attach(sc)) {
    157 			printf("%s: slhci_attach failed\n", SC_NAME(sc));
    158 			goto fail3;
    159 		}
    160 
    161 		psc->sc_flags |= PFL_ENABLED;
    162 		return 0;
    163 	} else {
    164 		if (!(psc->sc_flags & PFL_ENABLED))
    165 			return 1;
    166 		psc->sc_flags &= ~PFL_ENABLED;
    167 fail3:
    168 		pcmcia_function_disable(pf);
    169 fail2:
    170 		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    171 fail1:
    172 		pcmcia_function_unconfigure(pf);
    173 
    174 		return 1;
    175 	}
    176 }
    177 
    178 
    179