This source file includes following definitions.
- sdhc_pci_match
- sdhc_pci_attach
- sdhc_takecontroller
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 #include <sys/param.h>
20 #include <sys/device.h>
21 #include <sys/systm.h>
22 #include <sys/malloc.h>
23
24 #include <dev/pci/pcivar.h>
25 #include <dev/pci/pcidevs.h>
26 #include <dev/sdmmc/sdhcreg.h>
27 #include <dev/sdmmc/sdhcvar.h>
28 #include <dev/sdmmc/sdmmcvar.h>
29
30
31
32
33
34 #define SDHC_PCI_CONF_SLOT_INFO 0x40
35 #define SDHC_PCI_NUM_SLOTS(info) ((((info) >> 4) & 0x7) + 1)
36 #define SDHC_PCI_FIRST_BAR(info) ((info) & 0x7)
37
38
39 #define SDHC_PCI_GENERAL_CTL 0x4c
40 #define MMC_SD_DIS 0x02
41
42 struct sdhc_pci_softc {
43 struct sdhc_softc sc;
44 void *sc_ih;
45 };
46
47 int sdhc_pci_match(struct device *, void *, void *);
48 void sdhc_pci_attach(struct device *, struct device *, void *);
49 void sdhc_takecontroller(struct pci_attach_args *);
50
51 struct cfattach sdhc_pci_ca = {
52 sizeof(struct sdhc_pci_softc), sdhc_pci_match, sdhc_pci_attach
53 };
54
55 int
56 sdhc_pci_match(struct device *parent, void *match, void *aux)
57 {
58 struct pci_attach_args *pa = aux;
59
60 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SYSTEM &&
61 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SYSTEM_SDHC)
62 return 1;
63
64 return 0;
65 }
66
67 void
68 sdhc_pci_attach(struct device *parent, struct device *self, void *aux)
69 {
70 struct sdhc_pci_softc *sc = (struct sdhc_pci_softc *)self;
71 struct pci_attach_args *pa = aux;
72 pci_intr_handle_t ih;
73 char const *intrstr;
74 int slotinfo;
75 int nslots;
76 int usedma;
77 int reg;
78 bus_space_tag_t iot;
79 bus_space_handle_t ioh;
80 bus_size_t size;
81
82
83 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TI &&
84 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TI_PCI7XX1_SD &&
85 pa->pa_function == 4)
86 sdhc_takecontroller(pa);
87
88 if (pci_intr_map(pa, &ih)) {
89 printf(": can't map interrupt\n");
90 return;
91 }
92
93 intrstr = pci_intr_string(pa->pa_pc, ih);
94 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_SDMMC,
95 sdhc_intr, sc, sc->sc.sc_dev.dv_xname);
96 if (sc->sc_ih == NULL) {
97 printf(": can't establish interrupt\n");
98 return;
99 }
100 printf(": %s\n", intrstr);
101
102
103 usedma = PCI_INTERFACE(pa->pa_class) == SDHC_PCI_INTERFACE_DMA;
104
105
106
107
108 slotinfo = pci_conf_read(pa->pa_pc, pa->pa_tag,
109 SDHC_PCI_CONF_SLOT_INFO);
110 nslots = SDHC_PCI_NUM_SLOTS(slotinfo);
111
112
113 MALLOC(sc->sc.sc_host, struct sdhc_host **,
114 sizeof(struct sdhc_host *) * nslots, M_DEVBUF, M_WAITOK);
115
116
117 for (reg = SDHC_PCI_BAR_START + SDHC_PCI_FIRST_BAR(slotinfo) *
118 sizeof(u_int32_t);
119 reg < SDHC_PCI_BAR_END && nslots > 0;
120 reg += sizeof(u_int32_t), nslots--) {
121
122 if (pci_mem_find(pa->pa_pc, pa->pa_tag, reg,
123 NULL, NULL, NULL) != 0)
124 continue;
125
126 if (pci_mapreg_map(pa, reg, PCI_MAPREG_TYPE_MEM, 0,
127 &iot, &ioh, NULL, &size, 0)) {
128 printf("%s at 0x%x: can't map registers\n",
129 sc->sc.sc_dev.dv_xname, reg);
130 continue;
131 }
132
133 if (sdhc_host_found(&sc->sc, iot, ioh, size, usedma) != 0)
134
135 printf("%s at 0x%x: can't initialize host\n",
136 sc->sc.sc_dev.dv_xname, reg);
137 }
138
139
140
141
142 (void)powerhook_establish(sdhc_power, &sc->sc);
143 (void)shutdownhook_establish(sdhc_shutdown, &sc->sc);
144 }
145
146 void
147 sdhc_takecontroller(struct pci_attach_args *pa)
148 {
149 pcitag_t tag;
150 pcireg_t id, reg;
151
152
153 tag = pci_make_tag(pa->pa_pc, pa->pa_bus, pa->pa_device, 3);
154 id = pci_conf_read(pa->pa_pc, tag, PCI_ID_REG);
155 if (PCI_PRODUCT(id) != PCI_PRODUCT_TI_PCI7XX1_FLASH)
156 return;
157
158
159
160
161
162 reg = pci_conf_read(pa->pa_pc, tag, SDHC_PCI_GENERAL_CTL);
163 reg |= MMC_SD_DIS;
164 pci_conf_write(pa->pa_pc, tag, SDHC_PCI_GENERAL_CTL, reg);
165 }