1 /* $OpenBSD: rtsx_pci.c,v 1.7 2014/08/19 17:55:03 phessler 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 #include <sys/malloc.h> 24 25 #include <dev/pci/pcivar.h> 26 #include <dev/pci/pcidevs.h> 27 #include <dev/ic/rtsxreg.h> 28 #include <dev/ic/rtsxvar.h> 29 #include <dev/sdmmc/sdmmcvar.h> 30 31 #define RTSX_PCI_BAR 0x10 32 33 struct rtsx_pci_softc { 34 struct rtsx_softc sc; 35 void *sc_ih; 36 }; 37 38 int rtsx_pci_match(struct device *, void *, void *); 39 void rtsx_pci_attach(struct device *, struct device *, void *); 40 41 struct cfattach rtsx_pci_ca = { 42 sizeof(struct rtsx_pci_softc), rtsx_pci_match, rtsx_pci_attach, 43 NULL, rtsx_activate 44 }; 45 46 int 47 rtsx_pci_match(struct device *parent, void *match, void *aux) 48 { 49 struct pci_attach_args *pa = aux; 50 51 /* 52 * Explicitly match the UNDEFINED device class only. Some RTS5902 53 * devices advertise a SYSTEM/SDHC class in addition to the UNDEFINED 54 * device class. Let sdhc(4) handle the SYSTEM/SDHC ones. 55 */ 56 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_REALTEK || 57 PCI_CLASS(pa->pa_class) != PCI_CLASS_UNDEFINED) 58 return 0; 59 60 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5209 || 61 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5227 || 62 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229 || 63 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8402) 64 return 1; 65 66 return 0; 67 } 68 69 void 70 rtsx_pci_attach(struct device *parent, struct device *self, void *aux) 71 { 72 struct rtsx_pci_softc *sc = (struct rtsx_pci_softc *)self; 73 struct pci_attach_args *pa = aux; 74 pci_intr_handle_t ih; 75 char const *intrstr; 76 bus_space_tag_t iot; 77 bus_space_handle_t ioh; 78 bus_size_t size; 79 int flags; 80 81 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, RTSX_CFG_PCI) 82 & RTSX_CFG_ASIC) != 0) { 83 printf("%s: no asic\n", sc->sc.sc_dev.dv_xname); 84 return; 85 } 86 87 if (pci_intr_map_msi(pa, &ih) && pci_intr_map(pa, &ih)) { 88 printf(": can't map interrupt\n"); 89 return; 90 } 91 92 intrstr = pci_intr_string(pa->pa_pc, ih); 93 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_SDMMC, 94 rtsx_intr, sc, sc->sc.sc_dev.dv_xname); 95 if (sc->sc_ih == NULL) { 96 printf(": can't establish interrupt\n"); 97 return; 98 } 99 printf(": %s\n", intrstr); 100 101 if (pci_mem_find(pa->pa_pc, pa->pa_tag, RTSX_PCI_BAR, 102 NULL, NULL, NULL) != 0) { 103 printf("%s: can't find registers\n", sc->sc.sc_dev.dv_xname); 104 return; 105 } 106 107 if (pci_mapreg_map(pa, RTSX_PCI_BAR, PCI_MAPREG_TYPE_MEM, 0, 108 &iot, &ioh, NULL, &size, 0)) { 109 printf("%s: can't map registers\n", sc->sc.sc_dev.dv_xname); 110 return; 111 } 112 113 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0); 114 115 switch (PCI_PRODUCT(pa->pa_id)) { 116 case PCI_PRODUCT_REALTEK_RTS5209: 117 flags = RTSX_F_5209; 118 break; 119 case PCI_PRODUCT_REALTEK_RTS5227: 120 flags = RTSX_F_5227; 121 break; 122 case PCI_PRODUCT_REALTEK_RTS5229: 123 flags = RTSX_F_5229; 124 break; 125 default: 126 flags = 0; 127 break; 128 } 129 130 if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat, flags) != 0) 131 printf("%s: can't initialize chip\n", sc->sc.sc_dev.dv_xname); 132 } 133