1 /* $OpenBSD: ufshci_acpi.c,v 1.3 2024/10/08 00:46:29 jsg Exp $ */
2 /*
3 * Copyright (c) 2022 Marcus Glocker <mglocker@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/param.h>
19 #include <sys/systm.h>
20 #include <sys/device.h>
21
22 #include <machine/bus.h>
23 #include <machine/intr.h>
24
25 #include <dev/acpi/acpireg.h>
26 #include <dev/acpi/acpivar.h>
27 #include <dev/acpi/acpidev.h>
28 #include <dev/acpi/amltypes.h>
29 #include <dev/acpi/dsdt.h>
30
31 #include <scsi/scsi_all.h>
32 #include <scsi/scsi_disk.h>
33 #include <scsi/scsiconf.h>
34
35 #include <dev/ic/ufshcivar.h>
36
37 struct ufshci_acpi_softc {
38 struct ufshci_softc sc;
39 struct acpi_softc *sc_acpi;
40 struct aml_node *sc_node;
41 void *sc_ih;
42 };
43
44 int ufshci_acpi_match(struct device *, void *, void *);
45 void ufshci_acpi_attach(struct device *, struct device *, void *);
46
47 const struct cfattach ufshci_acpi_ca = {
48 sizeof(struct ufshci_acpi_softc), ufshci_acpi_match, ufshci_acpi_attach,
49 NULL, ufshci_activate
50 };
51
52 const char *ufshci_hids[] = {
53 "QCOM24A5",
54 NULL
55 };
56
57 int
ufshci_acpi_match(struct device * parent,void * match,void * aux)58 ufshci_acpi_match(struct device *parent, void *match, void *aux)
59 {
60 struct acpi_attach_args *aaa = aux;
61 struct cfdata *cf = match;
62
63 if (aaa->aaa_naddr < 1)
64 return 0;
65
66 return acpi_matchhids(aaa, ufshci_hids, cf->cf_driver->cd_name);
67 }
68
69 void
ufshci_acpi_attach(struct device * parent,struct device * self,void * aux)70 ufshci_acpi_attach(struct device *parent, struct device *self, void *aux)
71 {
72 struct ufshci_acpi_softc *sc = (struct ufshci_acpi_softc *)self;
73 struct acpi_attach_args *aaa = aux;
74 int error;
75
76 sc->sc_acpi = (struct acpi_softc *)parent;
77 sc->sc_node = aaa->aaa_node;
78 printf(" %s", sc->sc_node->name);
79
80 if (aaa->aaa_nirq < 1) {
81 printf(": no interrupt\n");
82 return;
83 }
84
85 printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]);
86 printf(" irq %d", aaa->aaa_irq[0]);
87
88 sc->sc.sc_iot = aaa->aaa_bst[0];
89 sc->sc.sc_ios = aaa->aaa_size[0];
90 sc->sc.sc_dmat = aaa->aaa_dmat;
91
92 if (bus_space_map(sc->sc.sc_iot, aaa->aaa_addr[0], aaa->aaa_size[0], 0,
93 &sc->sc.sc_ioh)) {
94 printf(": can't map registers\n");
95 return;
96 }
97
98 sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0],
99 IPL_BIO, ufshci_intr, sc, sc->sc.sc_dev.dv_xname);
100 if (sc->sc_ih == NULL) {
101 printf(": can't establish interrupt\n");
102 return;
103 }
104
105 error = ufshci_attach(&sc->sc);
106 if (error) {
107 printf("%s: attach failed, error=%d\n",
108 sc->sc.sc_dev.dv_xname, error);
109 return;
110 }
111 }
112