1 /* $NetBSD: slhci_pcmcia.c,v 1.10 2016/04/23 10:15:31 skrll 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 1.10 2016/04/23 10:15:31 skrll 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
slhci_pcmcia_probe(device_t parent,cfdata_t match,void * aux)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
slhci_pcmcia_validate_config(struct pcmcia_config_entry * cfe)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
slhci_pcmcia_attach(device_t parent,device_t self,void * aux)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 psc->sc_slhci.sc_bus.ub_hcpriv = &psc->sc_slhci;
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
slhci_pcmcia_detach(device_t self,int flags)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
slhci_pcmcia_enable(struct slhci_pcmcia_softc * psc,int enable)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_USB,
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
180