1 /* $OpenBSD: rtsx_pci.c,v 1.10 2015/03/14 16:42:30 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> 5 * Copyright (c) 2012 Stefan Sperling <stsp@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/param.h> 21 #include <sys/device.h> 22 #include <sys/systm.h> 23 24 #include <dev/pci/pcivar.h> 25 #include <dev/pci/pcidevs.h> 26 #include <dev/ic/rtsxreg.h> 27 #include <dev/ic/rtsxvar.h> 28 #include <dev/sdmmc/sdmmcvar.h> 29 30 #define RTSX_PCI_BAR 0x10 31 32 struct rtsx_pci_softc { 33 struct rtsx_softc sc; 34 void *sc_ih; 35 }; 36 37 int rtsx_pci_match(struct device *, void *, void *); 38 void rtsx_pci_attach(struct device *, struct device *, void *); 39 40 struct cfattach rtsx_pci_ca = { 41 sizeof(struct rtsx_pci_softc), rtsx_pci_match, rtsx_pci_attach, 42 NULL, rtsx_activate 43 }; 44 45 int 46 rtsx_pci_match(struct device *parent, void *match, void *aux) 47 { 48 struct pci_attach_args *pa = aux; 49 50 /* 51 * Explicitly match the UNDEFINED device class only. Some RTS5902 52 * devices advertise a SYSTEM/SDHC class in addition to the UNDEFINED 53 * device class. Let sdhc(4) handle the SYSTEM/SDHC ones. 54 */ 55 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_REALTEK || 56 PCI_CLASS(pa->pa_class) != PCI_CLASS_UNDEFINED) 57 return 0; 58 59 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5209 || 60 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5227 || 61 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229 || 62 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8411 || 63 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8411B || 64 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8402) 65 return 1; 66 67 return 0; 68 } 69 70 void 71 rtsx_pci_attach(struct device *parent, struct device *self, void *aux) 72 { 73 struct rtsx_pci_softc *sc = (struct rtsx_pci_softc *)self; 74 struct pci_attach_args *pa = aux; 75 pci_intr_handle_t ih; 76 char const *intrstr; 77 bus_space_tag_t iot; 78 bus_space_handle_t ioh; 79 bus_size_t size; 80 int flags; 81 82 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, RTSX_CFG_PCI) 83 & RTSX_CFG_ASIC) != 0) { 84 printf("%s: no asic\n", sc->sc.sc_dev.dv_xname); 85 return; 86 } 87 88 if (pci_intr_map_msi(pa, &ih) && 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 rtsx_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 if (pci_mem_find(pa->pa_pc, pa->pa_tag, RTSX_PCI_BAR, 103 NULL, NULL, NULL) != 0) { 104 printf("%s: can't find registers\n", sc->sc.sc_dev.dv_xname); 105 return; 106 } 107 108 if (pci_mapreg_map(pa, RTSX_PCI_BAR, PCI_MAPREG_TYPE_MEM, 0, 109 &iot, &ioh, NULL, &size, 0)) { 110 printf("%s: can't map registers\n", sc->sc.sc_dev.dv_xname); 111 return; 112 } 113 114 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0); 115 116 switch (PCI_PRODUCT(pa->pa_id)) { 117 case PCI_PRODUCT_REALTEK_RTS5209: 118 flags = RTSX_F_5209; 119 break; 120 case PCI_PRODUCT_REALTEK_RTS5227: 121 flags = RTSX_F_5227; 122 break; 123 case PCI_PRODUCT_REALTEK_RTS5229: 124 flags = RTSX_F_5229; 125 break; 126 default: 127 flags = 0; 128 break; 129 } 130 131 if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat, flags) != 0) 132 printf("%s: can't initialize chip\n", sc->sc.sc_dev.dv_xname); 133 } 134