1 | /* $NetBSD: rtsx_pci.c,v 1.6 2016/07/07 06:55:41 msaitoh Exp $ */ |
2 | /* $OpenBSD: rtsx_pci.c,v 1.7 2014/08/19 17:55:03 phessler Exp $ */ |
3 | |
4 | |
5 | /* |
6 | * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> |
7 | * Copyright (c) 2012 Stefan Sperling <stsp@openbsd.org> |
8 | * |
9 | * Permission to use, copy, modify, and distribute this software for any |
10 | * purpose with or without fee is hereby granted, provided that the above |
11 | * copyright notice and this permission notice appear in all copies. |
12 | * |
13 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
14 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
15 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
16 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
18 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
19 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
20 | */ |
21 | |
22 | #include <sys/cdefs.h> |
23 | __KERNEL_RCSID(0, "$NetBSD: rtsx_pci.c,v 1.6 2016/07/07 06:55:41 msaitoh Exp $" ); |
24 | |
25 | #include <sys/param.h> |
26 | #include <sys/device.h> |
27 | #include <sys/systm.h> |
28 | #include <sys/malloc.h> |
29 | #include <sys/pmf.h> |
30 | |
31 | #include <dev/pci/pcivar.h> |
32 | #include <dev/pci/pcidevs.h> |
33 | |
34 | #include <dev/ic/rtsxreg.h> |
35 | #include <dev/ic/rtsxvar.h> |
36 | |
37 | #include <dev/sdmmc/sdmmcvar.h> |
38 | |
39 | #define RTSX_PCI_BAR 0x10 |
40 | |
41 | struct rtsx_pci_softc { |
42 | struct rtsx_softc sc; |
43 | pci_chipset_tag_t sc_pc; |
44 | void *sc_ih; |
45 | |
46 | pci_intr_handle_t *sc_pihp; |
47 | }; |
48 | |
49 | static int rtsx_pci_match(device_t , cfdata_t, void *); |
50 | static void rtsx_pci_attach(device_t, device_t, void *); |
51 | static int rtsx_pci_detach(device_t, int); |
52 | |
53 | CFATTACH_DECL_NEW(rtsx_pci, sizeof(struct rtsx_pci_softc), |
54 | rtsx_pci_match, rtsx_pci_attach, rtsx_pci_detach, NULL); |
55 | |
56 | #ifdef RTSX_DEBUG |
57 | extern int rtsxdebug; |
58 | #define DPRINTF(n,s) do { if ((n) <= rtsxdebug) printf s; } while (0) |
59 | #else |
60 | #define DPRINTF(n,s) /**/ |
61 | #endif |
62 | |
63 | static int |
64 | rtsx_pci_match(device_t parent, cfdata_t cf, void *aux) |
65 | { |
66 | struct pci_attach_args *pa = aux; |
67 | |
68 | /* |
69 | * Explicitly match the UNDEFINED device class only. Some RTS5902 |
70 | * devices advertise a SYSTEM/SDHC class in addition to the UNDEFINED |
71 | * device class. Let sdhc(4) handle the SYSTEM/SDHC ones. |
72 | */ |
73 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_REALTEK || |
74 | PCI_CLASS(pa->pa_class) != PCI_CLASS_UNDEFINED) |
75 | return 0; |
76 | |
77 | switch (PCI_PRODUCT(pa->pa_id)) { |
78 | case PCI_PRODUCT_REALTEK_RTS5209: |
79 | case PCI_PRODUCT_REALTEK_RTS5227: |
80 | case PCI_PRODUCT_REALTEK_RTS5229: |
81 | case PCI_PRODUCT_REALTEK_RTL8402: |
82 | case PCI_PRODUCT_REALTEK_RTL8411: |
83 | case PCI_PRODUCT_REALTEK_RTL8411B: |
84 | return 1; |
85 | } |
86 | |
87 | return 0; |
88 | } |
89 | |
90 | static void |
91 | rtsx_pci_attach(device_t parent, device_t self, void *aux) |
92 | { |
93 | struct rtsx_pci_softc *sc = device_private(self); |
94 | struct pci_attach_args *pa = (struct pci_attach_args *)aux; |
95 | pci_chipset_tag_t pc = pa->pa_pc; |
96 | pcitag_t tag = pa->pa_tag; |
97 | pcireg_t reg; |
98 | char const *intrstr; |
99 | bus_space_tag_t iot; |
100 | bus_space_handle_t ioh; |
101 | bus_size_t size; |
102 | uint32_t flags; |
103 | char intrbuf[PCI_INTRSTR_LEN]; |
104 | |
105 | sc->sc.sc_dev = self; |
106 | sc->sc_pc = pc; |
107 | |
108 | pci_aprint_devinfo(pa, NULL); |
109 | |
110 | if ((pci_conf_read(pc, tag, RTSX_CFG_PCI) & RTSX_CFG_ASIC) != 0) { |
111 | aprint_error_dev(self, "no asic\n" ); |
112 | return; |
113 | } |
114 | |
115 | if (pci_mapreg_map(pa, RTSX_PCI_BAR, PCI_MAPREG_TYPE_MEM, 0, |
116 | &iot, &ioh, NULL, &size)) { |
117 | aprint_error_dev(self, "couldn't map registers\n" ); |
118 | return; |
119 | } |
120 | |
121 | if (pci_intr_alloc(pa, &sc->sc_pihp, NULL, 0)) { |
122 | aprint_error_dev(self, "couldn't map interrupt\n" ); |
123 | return; |
124 | } |
125 | intrstr = pci_intr_string(pc, sc->sc_pihp[0], intrbuf, sizeof(intrbuf)); |
126 | sc->sc_ih = pci_intr_establish(pc, sc->sc_pihp[0], IPL_SDMMC, |
127 | rtsx_intr, &sc->sc); |
128 | if (sc->sc_ih == NULL) { |
129 | aprint_error_dev(self, "couldn't establish interrupt\n" ); |
130 | return; |
131 | } |
132 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
133 | |
134 | /* Enable the device */ |
135 | reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); |
136 | reg |= PCI_COMMAND_MASTER_ENABLE; |
137 | pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, reg); |
138 | |
139 | /* Power up the device */ |
140 | pci_set_powerstate(pc, tag, PCI_PMCSR_STATE_D0); |
141 | |
142 | switch (PCI_PRODUCT(pa->pa_id)) { |
143 | case PCI_PRODUCT_REALTEK_RTS5209: |
144 | flags = RTSX_F_5209; |
145 | break; |
146 | case PCI_PRODUCT_REALTEK_RTS5227: |
147 | flags = RTSX_F_5227; |
148 | break; |
149 | case PCI_PRODUCT_REALTEK_RTS5229: |
150 | flags = RTSX_F_5229; |
151 | break; |
152 | case PCI_PRODUCT_REALTEK_RTL8402: |
153 | flags = RTSX_F_8402; |
154 | break; |
155 | case PCI_PRODUCT_REALTEK_RTL8411: |
156 | flags = RTSX_F_8411; |
157 | break; |
158 | case PCI_PRODUCT_REALTEK_RTL8411B: |
159 | flags = RTSX_F_8411B; |
160 | break; |
161 | default: |
162 | flags = 0; |
163 | break; |
164 | } |
165 | |
166 | if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat, flags) != 0) { |
167 | aprint_error_dev(self, "couldn't initialize chip\n" ); |
168 | return; |
169 | } |
170 | |
171 | if (!pmf_device_register1(self, rtsx_suspend, rtsx_resume, |
172 | rtsx_shutdown)) |
173 | aprint_error_dev(self, "couldn't establish powerhook\n" ); |
174 | } |
175 | |
176 | static int |
177 | rtsx_pci_detach(device_t self, int flags) |
178 | { |
179 | struct rtsx_pci_softc *sc = device_private(self); |
180 | int rv; |
181 | |
182 | rv = rtsx_detach(&sc->sc, flags); |
183 | if (rv) |
184 | return rv; |
185 | |
186 | pci_intr_disestablish(sc->sc_pc, sc->sc_ih); |
187 | pci_intr_release(sc->sc_pc, sc->sc_pihp, 1); |
188 | |
189 | return 0; |
190 | } |
191 | |