1 /* $OpenBSD: rtsx_pci.c,v 1.16 2023/04/13 15:07:43 miod 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 #define RTSX_PCI_BAR_525A 0x14 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 const 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 RTS5209 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_RTS522A || 64 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5249 || 65 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS525A || 66 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8402 || 67 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8411 || 68 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8411B) 69 return 1; 70 71 return 0; 72 } 73 74 void 75 rtsx_pci_attach(struct device *parent, struct device *self, void *aux) 76 { 77 struct rtsx_pci_softc *sc = (struct rtsx_pci_softc *)self; 78 struct pci_attach_args *pa = aux; 79 pci_intr_handle_t ih; 80 char const *intrstr; 81 bus_space_tag_t iot; 82 bus_space_handle_t ioh; 83 bus_size_t size; 84 int flags; 85 int bar = RTSX_PCI_BAR; 86 pcireg_t type; 87 88 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, RTSX_CFG_PCI) 89 & RTSX_CFG_ASIC) != 0) { 90 printf("%s: no asic\n", sc->sc.sc_dev.dv_xname); 91 return; 92 } 93 94 if (pci_intr_map_msi(pa, &ih) && pci_intr_map(pa, &ih)) { 95 printf(": can't map interrupt\n"); 96 return; 97 } 98 99 intrstr = pci_intr_string(pa->pa_pc, ih); 100 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_SDMMC, 101 rtsx_intr, sc, sc->sc.sc_dev.dv_xname); 102 if (sc->sc_ih == NULL) { 103 printf(": can't establish interrupt\n"); 104 return; 105 } 106 printf(": %s\n", intrstr); 107 108 switch (PCI_PRODUCT(pa->pa_id)) { 109 case PCI_PRODUCT_REALTEK_RTS5209: 110 flags = RTSX_F_5209; 111 break; 112 case PCI_PRODUCT_REALTEK_RTS5229: 113 case PCI_PRODUCT_REALTEK_RTS5249: 114 flags = RTSX_F_5229; 115 break; 116 case PCI_PRODUCT_REALTEK_RTS525A: 117 flags = RTSX_F_525A; 118 bar = RTSX_PCI_BAR_525A; 119 break; 120 default: 121 flags = 0; 122 break; 123 } 124 125 type = pci_mapreg_type(pa->pa_pc, pa->pa_tag, bar); 126 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, bar, type, NULL, NULL, 127 NULL) != 0) { 128 printf("%s: can't find registers\n", sc->sc.sc_dev.dv_xname); 129 return; 130 } 131 if (pci_mapreg_map(pa, bar, type, 0, &iot, &ioh, NULL, &size, 0)) { 132 printf("%s: can't map registers\n", sc->sc.sc_dev.dv_xname); 133 return; 134 } 135 136 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0); 137 138 if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat, flags) != 0) 139 printf("%s: can't initialize chip\n", sc->sc.sc_dev.dv_xname); 140 } 141