| 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 | |