sdhc_acpi.c revision 1.2.2.3
1 1.2.2.3 skrll /* $NetBSD: sdhc_acpi.c,v 1.2.2.3 2016/10/05 20:55:40 skrll Exp $ */ 2 1.2.2.2 skrll 3 1.2.2.2 skrll /* 4 1.2.2.2 skrll * Copyright (c) 2016 Kimihiro Nonaka <nonaka (at) NetBSD.org> 5 1.2.2.2 skrll * All rights reserved. 6 1.2.2.2 skrll * 7 1.2.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 skrll * modification, are permitted provided that the following conditions 9 1.2.2.2 skrll * are met: 10 1.2.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 skrll * 2. The name of the author may not be used to endorse or promote products 13 1.2.2.2 skrll * derived from this software without specific prior written permission. 14 1.2.2.2 skrll * 15 1.2.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.2.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 1.2.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 1.2.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 1.2.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 1.2.2.2 skrll * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 1.2.2.2 skrll * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 1.2.2.2 skrll * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 1.2.2.2 skrll * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.2.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.2.2.2 skrll * SUCH DAMAGE. 26 1.2.2.2 skrll */ 27 1.2.2.2 skrll 28 1.2.2.2 skrll #include <sys/cdefs.h> 29 1.2.2.3 skrll __KERNEL_RCSID(0, "$NetBSD: sdhc_acpi.c,v 1.2.2.3 2016/10/05 20:55:40 skrll Exp $"); 30 1.2.2.2 skrll 31 1.2.2.2 skrll #include <sys/param.h> 32 1.2.2.2 skrll #include <sys/device.h> 33 1.2.2.2 skrll #include <sys/systm.h> 34 1.2.2.2 skrll #include <sys/kmem.h> 35 1.2.2.2 skrll 36 1.2.2.2 skrll #include <dev/acpi/acpireg.h> 37 1.2.2.2 skrll #include <dev/acpi/acpivar.h> 38 1.2.2.2 skrll 39 1.2.2.2 skrll #include <dev/sdmmc/sdhcreg.h> 40 1.2.2.2 skrll #include <dev/sdmmc/sdhcvar.h> 41 1.2.2.2 skrll #include <dev/sdmmc/sdmmcvar.h> 42 1.2.2.2 skrll 43 1.2.2.2 skrll #define _COMPONENT ACPI_RESOURCE_COMPONENT 44 1.2.2.2 skrll ACPI_MODULE_NAME ("sdhc_acpi") 45 1.2.2.2 skrll 46 1.2.2.2 skrll static int sdhc_acpi_match(device_t, cfdata_t, void *); 47 1.2.2.2 skrll static void sdhc_acpi_attach(device_t, device_t, void *); 48 1.2.2.2 skrll static int sdhc_acpi_detach(device_t, int); 49 1.2.2.2 skrll static bool sdhc_acpi_resume(device_t, const pmf_qual_t *); 50 1.2.2.2 skrll 51 1.2.2.2 skrll struct sdhc_acpi_softc { 52 1.2.2.2 skrll struct sdhc_softc sc; 53 1.2.2.2 skrll int sc_irq; 54 1.2.2.2 skrll 55 1.2.2.2 skrll ACPI_HANDLE sc_crs, sc_srs; 56 1.2.2.2 skrll ACPI_BUFFER sc_crs_buffer; 57 1.2.2.2 skrll }; 58 1.2.2.2 skrll 59 1.2.2.2 skrll CFATTACH_DECL_NEW(sdhc_acpi, sizeof(struct sdhc_acpi_softc), 60 1.2.2.2 skrll sdhc_acpi_match, sdhc_acpi_attach, sdhc_acpi_detach, NULL); 61 1.2.2.2 skrll 62 1.2.2.2 skrll static uint32_t sdhc_acpi_intr(void *); 63 1.2.2.2 skrll 64 1.2.2.2 skrll static const char * const sdhc_acpi_ids[] = { 65 1.2.2.2 skrll "80860F14", 66 1.2.2.2 skrll "80860F16", 67 1.2.2.2 skrll NULL 68 1.2.2.2 skrll }; 69 1.2.2.2 skrll 70 1.2.2.2 skrll static int 71 1.2.2.2 skrll sdhc_acpi_match(device_t parent, cfdata_t match, void *opaque) 72 1.2.2.2 skrll { 73 1.2.2.2 skrll struct acpi_attach_args *aa = opaque; 74 1.2.2.2 skrll 75 1.2.2.2 skrll if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 76 1.2.2.2 skrll return 0; 77 1.2.2.2 skrll 78 1.2.2.2 skrll return acpi_match_hid(aa->aa_node->ad_devinfo, sdhc_acpi_ids); 79 1.2.2.2 skrll } 80 1.2.2.2 skrll 81 1.2.2.2 skrll static void 82 1.2.2.2 skrll sdhc_acpi_attach(device_t parent, device_t self, void *opaque) 83 1.2.2.2 skrll { 84 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 85 1.2.2.2 skrll struct acpi_attach_args *aa = opaque; 86 1.2.2.2 skrll struct acpi_resources res; 87 1.2.2.2 skrll struct acpi_mem *mem; 88 1.2.2.2 skrll struct acpi_irq *irq; 89 1.2.2.2 skrll bus_space_handle_t memh; 90 1.2.2.2 skrll ACPI_STATUS rv; 91 1.2.2.2 skrll 92 1.2.2.2 skrll sc->sc.sc_dev = self; 93 1.2.2.2 skrll sc->sc.sc_dmat = aa->aa_dmat; 94 1.2.2.2 skrll sc->sc.sc_host = NULL; 95 1.2.2.2 skrll sc->sc_irq = -1; 96 1.2.2.2 skrll 97 1.2.2.2 skrll rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 98 1.2.2.2 skrll &res, &acpi_resource_parse_ops_default); 99 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 100 1.2.2.2 skrll return; 101 1.2.2.2 skrll 102 1.2.2.2 skrll AcpiGetHandle(aa->aa_node->ad_handle, "_CRS", &sc->sc_crs); 103 1.2.2.2 skrll AcpiGetHandle(aa->aa_node->ad_handle, "_SRS", &sc->sc_srs); 104 1.2.2.2 skrll if (sc->sc_crs && sc->sc_srs) { 105 1.2.2.2 skrll /* XXX Why need this? */ 106 1.2.2.2 skrll sc->sc_crs_buffer.Pointer = NULL; 107 1.2.2.2 skrll sc->sc_crs_buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 108 1.2.2.2 skrll rv = AcpiGetCurrentResources(sc->sc_crs, &sc->sc_crs_buffer); 109 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 110 1.2.2.2 skrll sc->sc_crs = sc->sc_srs = NULL; 111 1.2.2.2 skrll } 112 1.2.2.2 skrll 113 1.2.2.2 skrll mem = acpi_res_mem(&res, 0); 114 1.2.2.2 skrll irq = acpi_res_irq(&res, 0); 115 1.2.2.2 skrll if (mem == NULL || irq == NULL) { 116 1.2.2.2 skrll aprint_error_dev(self, "incomplete resources\n"); 117 1.2.2.2 skrll goto cleanup; 118 1.2.2.2 skrll } 119 1.2.2.2 skrll 120 1.2.2.2 skrll if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0, 121 1.2.2.2 skrll &memh)) { 122 1.2.2.2 skrll aprint_error_dev(self, "couldn't map registers\n"); 123 1.2.2.2 skrll goto cleanup; 124 1.2.2.2 skrll } 125 1.2.2.2 skrll 126 1.2.2.2 skrll /* XXX acpi_intr_establish? */ 127 1.2.2.2 skrll rv = AcpiOsInstallInterruptHandler(irq->ar_irq, sdhc_acpi_intr, sc); 128 1.2.2.2 skrll if (ACPI_FAILURE(rv)) { 129 1.2.2.2 skrll aprint_error_dev(self, 130 1.2.2.2 skrll "couldn't establish interrupt handler\n"); 131 1.2.2.2 skrll goto cleanup; 132 1.2.2.2 skrll } 133 1.2.2.2 skrll sc->sc_irq = irq->ar_irq; 134 1.2.2.2 skrll 135 1.2.2.2 skrll sc->sc.sc_host = kmem_zalloc(sizeof(struct sdhc_host *), KM_NOSLEEP); 136 1.2.2.2 skrll if (sc->sc.sc_host == NULL) { 137 1.2.2.2 skrll aprint_error_dev(self, "couldn't alloc memory\n"); 138 1.2.2.2 skrll goto cleanup; 139 1.2.2.2 skrll } 140 1.2.2.2 skrll 141 1.2.2.3 skrll /* Enable DMA transfer */ 142 1.2.2.3 skrll sc->sc.sc_flags |= SDHC_FLAG_USE_DMA; 143 1.2.2.3 skrll 144 1.2.2.2 skrll if (sdhc_host_found(&sc->sc, aa->aa_memt, memh, mem->ar_length) != 0) { 145 1.2.2.2 skrll aprint_error_dev(self, "couldn't initialize host\n"); 146 1.2.2.2 skrll goto cleanup; 147 1.2.2.2 skrll } 148 1.2.2.2 skrll 149 1.2.2.2 skrll if (!pmf_device_register1(self, sdhc_suspend, sdhc_acpi_resume, 150 1.2.2.2 skrll sdhc_shutdown)) { 151 1.2.2.2 skrll aprint_error_dev(self, "couldn't establish powerhook\n"); 152 1.2.2.2 skrll } 153 1.2.2.2 skrll 154 1.2.2.2 skrll acpi_resource_cleanup(&res); 155 1.2.2.2 skrll return; 156 1.2.2.2 skrll 157 1.2.2.2 skrll cleanup: 158 1.2.2.2 skrll acpi_resource_cleanup(&res); 159 1.2.2.2 skrll if (sc->sc_crs_buffer.Pointer) 160 1.2.2.2 skrll ACPI_FREE(sc->sc_crs_buffer.Pointer); 161 1.2.2.2 skrll if (sc->sc_irq >= 0) 162 1.2.2.2 skrll /* XXX acpi_intr_disestablish? */ 163 1.2.2.2 skrll AcpiOsRemoveInterruptHandler(sc->sc_irq, sdhc_acpi_intr); 164 1.2.2.2 skrll if (sc->sc.sc_host != NULL) 165 1.2.2.2 skrll kmem_free(sc->sc.sc_host, sizeof(struct sdhc_host *)); 166 1.2.2.2 skrll } 167 1.2.2.2 skrll 168 1.2.2.2 skrll static int 169 1.2.2.2 skrll sdhc_acpi_detach(device_t self, int flags) 170 1.2.2.2 skrll { 171 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 172 1.2.2.2 skrll int rv; 173 1.2.2.2 skrll 174 1.2.2.2 skrll pmf_device_deregister(self); 175 1.2.2.2 skrll 176 1.2.2.2 skrll if (sc->sc_crs_buffer.Pointer) 177 1.2.2.2 skrll ACPI_FREE(sc->sc_crs_buffer.Pointer); 178 1.2.2.2 skrll 179 1.2.2.2 skrll rv = sdhc_detach(&sc->sc, flags); 180 1.2.2.2 skrll if (rv) 181 1.2.2.2 skrll return rv; 182 1.2.2.2 skrll 183 1.2.2.2 skrll if (sc->sc_irq >= 0) 184 1.2.2.2 skrll /* XXX acpi_intr_disestablish? */ 185 1.2.2.2 skrll AcpiOsRemoveInterruptHandler(sc->sc_irq, sdhc_acpi_intr); 186 1.2.2.2 skrll 187 1.2.2.2 skrll if (sc->sc.sc_host != NULL) 188 1.2.2.2 skrll kmem_free(sc->sc.sc_host, sizeof(struct sdhc_host *)); 189 1.2.2.2 skrll 190 1.2.2.2 skrll return 0; 191 1.2.2.2 skrll } 192 1.2.2.2 skrll 193 1.2.2.2 skrll static bool 194 1.2.2.2 skrll sdhc_acpi_resume(device_t self, const pmf_qual_t *qual) 195 1.2.2.2 skrll { 196 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 197 1.2.2.2 skrll ACPI_STATUS rv; 198 1.2.2.2 skrll 199 1.2.2.2 skrll if (sc->sc_crs && sc->sc_srs) { 200 1.2.2.2 skrll rv = AcpiSetCurrentResources(sc->sc_srs, &sc->sc_crs_buffer); 201 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 202 1.2.2.2 skrll printf("%s: _SRS failed: %s\n", 203 1.2.2.2 skrll device_xname(self), AcpiFormatException(rv)); 204 1.2.2.2 skrll } 205 1.2.2.2 skrll 206 1.2.2.2 skrll return sdhc_resume(self, qual); 207 1.2.2.2 skrll } 208 1.2.2.2 skrll 209 1.2.2.2 skrll static uint32_t 210 1.2.2.2 skrll sdhc_acpi_intr(void *context) 211 1.2.2.2 skrll { 212 1.2.2.2 skrll struct sdhc_acpi_softc *sc = context; 213 1.2.2.2 skrll 214 1.2.2.2 skrll if (!sdhc_intr(&sc->sc)) 215 1.2.2.2 skrll return ACPI_INTERRUPT_NOT_HANDLED; 216 1.2.2.2 skrll return ACPI_INTERRUPT_HANDLED; 217 1.2.2.2 skrll } 218
Indexes created Wed Oct 15 07:09:58 GMT 2025