sdhc_acpi.c revision 1.2.2.4
1 1.2.2.4 skrll /* $NetBSD: sdhc_acpi.c,v 1.2.2.4 2017/08/28 17:52:01 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 1.2.2.4 skrll __KERNEL_RCSID(0, "$NetBSD: sdhc_acpi.c,v 1.2.2.4 2017/08/28 17:52:01 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 1.2.2.4 skrll bus_space_tag_t sc_memt; 54 1.2.2.4 skrll bus_space_handle_t sc_memh; 55 1.2.2.4 skrll bus_size_t sc_memsize; 56 1.2.2.2 skrll int sc_irq; 57 1.2.2.2 skrll 58 1.2.2.2 skrll ACPI_HANDLE sc_crs, sc_srs; 59 1.2.2.2 skrll ACPI_BUFFER sc_crs_buffer; 60 1.2.2.2 skrll }; 61 1.2.2.2 skrll 62 1.2.2.2 skrll CFATTACH_DECL_NEW(sdhc_acpi, sizeof(struct sdhc_acpi_softc), 63 1.2.2.2 skrll sdhc_acpi_match, sdhc_acpi_attach, sdhc_acpi_detach, NULL); 64 1.2.2.2 skrll 65 1.2.2.4 skrll static uint32_t sdhc_acpi_intr(void *); 66 1.2.2.4 skrll static void sdhc_acpi_intel_emmc_hw_reset(struct sdhc_softc *, 67 1.2.2.4 skrll struct sdhc_host *); 68 1.2.2.4 skrll 69 1.2.2.4 skrll static const struct sdhc_acpi_slot { 70 1.2.2.4 skrll const char *hid; 71 1.2.2.4 skrll const char *uid; 72 1.2.2.4 skrll int type; 73 1.2.2.4 skrll #define SLOT_TYPE_SD 0 /* SD or SDIO */ 74 1.2.2.4 skrll #define SLOT_TYPE_EMMC 1 /* eMMC */ 75 1.2.2.4 skrll } sdhc_acpi_slot_map[] = { 76 1.2.2.4 skrll { "80865ACA", NULL, SLOT_TYPE_SD }, 77 1.2.2.4 skrll { "80865ACC", NULL, SLOT_TYPE_EMMC }, 78 1.2.2.4 skrll { "80865AD0", NULL, SLOT_TYPE_SD }, 79 1.2.2.4 skrll { "80860F14", "1", SLOT_TYPE_EMMC }, 80 1.2.2.4 skrll { "80860F14", "3", SLOT_TYPE_SD }, 81 1.2.2.4 skrll { "80860F16", NULL, SLOT_TYPE_SD }, 82 1.2.2.4 skrll { "INT33BB", "2", SLOT_TYPE_SD }, 83 1.2.2.4 skrll { "INT33BB", "3", SLOT_TYPE_SD }, 84 1.2.2.4 skrll { "INT33C6", NULL, SLOT_TYPE_SD }, 85 1.2.2.4 skrll { "INT3436", NULL, SLOT_TYPE_SD }, 86 1.2.2.4 skrll { "INT344D", NULL, SLOT_TYPE_SD }, 87 1.2.2.4 skrll { "PNP0D40", NULL, SLOT_TYPE_SD }, 88 1.2.2.4 skrll { "PNP0FFF", "3", SLOT_TYPE_SD }, 89 1.2.2.2 skrll }; 90 1.2.2.2 skrll 91 1.2.2.4 skrll static const struct sdhc_acpi_slot * 92 1.2.2.4 skrll sdhc_acpi_find_slot(ACPI_DEVICE_INFO *ad) 93 1.2.2.4 skrll { 94 1.2.2.4 skrll const struct sdhc_acpi_slot *slot; 95 1.2.2.4 skrll const char *hid, *uid; 96 1.2.2.4 skrll size_t i; 97 1.2.2.4 skrll 98 1.2.2.4 skrll hid = ad->HardwareId.String; 99 1.2.2.4 skrll uid = ad->UniqueId.String; 100 1.2.2.4 skrll 101 1.2.2.4 skrll if (!(ad->Valid & ACPI_VALID_HID) || hid == NULL) 102 1.2.2.4 skrll return NULL; 103 1.2.2.4 skrll 104 1.2.2.4 skrll for (i = 0; i < __arraycount(sdhc_acpi_slot_map); i++) { 105 1.2.2.4 skrll slot = &sdhc_acpi_slot_map[i]; 106 1.2.2.4 skrll if (strcmp(hid, slot->hid) == 0) { 107 1.2.2.4 skrll if (slot->uid == NULL || 108 1.2.2.4 skrll ((ad->Valid & ACPI_VALID_UID) != 0 && 109 1.2.2.4 skrll uid != NULL && 110 1.2.2.4 skrll strcmp(uid, slot->uid) == 0)) 111 1.2.2.4 skrll return slot; 112 1.2.2.4 skrll } 113 1.2.2.4 skrll } 114 1.2.2.4 skrll return NULL; 115 1.2.2.4 skrll } 116 1.2.2.4 skrll 117 1.2.2.2 skrll static int 118 1.2.2.2 skrll sdhc_acpi_match(device_t parent, cfdata_t match, void *opaque) 119 1.2.2.2 skrll { 120 1.2.2.2 skrll struct acpi_attach_args *aa = opaque; 121 1.2.2.2 skrll 122 1.2.2.2 skrll if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 123 1.2.2.2 skrll return 0; 124 1.2.2.2 skrll 125 1.2.2.4 skrll return sdhc_acpi_find_slot(aa->aa_node->ad_devinfo) != NULL; 126 1.2.2.2 skrll } 127 1.2.2.2 skrll 128 1.2.2.2 skrll static void 129 1.2.2.2 skrll sdhc_acpi_attach(device_t parent, device_t self, void *opaque) 130 1.2.2.2 skrll { 131 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 132 1.2.2.2 skrll struct acpi_attach_args *aa = opaque; 133 1.2.2.4 skrll const struct sdhc_acpi_slot *slot; 134 1.2.2.2 skrll struct acpi_resources res; 135 1.2.2.2 skrll struct acpi_mem *mem; 136 1.2.2.2 skrll struct acpi_irq *irq; 137 1.2.2.2 skrll ACPI_STATUS rv; 138 1.2.2.2 skrll 139 1.2.2.2 skrll sc->sc.sc_dev = self; 140 1.2.2.2 skrll sc->sc.sc_dmat = aa->aa_dmat; 141 1.2.2.2 skrll sc->sc.sc_host = NULL; 142 1.2.2.4 skrll sc->sc_memt = aa->aa_memt; 143 1.2.2.2 skrll sc->sc_irq = -1; 144 1.2.2.2 skrll 145 1.2.2.4 skrll slot = sdhc_acpi_find_slot(aa->aa_node->ad_devinfo); 146 1.2.2.4 skrll if (slot->type == SLOT_TYPE_EMMC) 147 1.2.2.4 skrll sc->sc.sc_vendor_hw_reset = sdhc_acpi_intel_emmc_hw_reset; 148 1.2.2.4 skrll 149 1.2.2.2 skrll rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 150 1.2.2.2 skrll &res, &acpi_resource_parse_ops_default); 151 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 152 1.2.2.2 skrll return; 153 1.2.2.2 skrll 154 1.2.2.2 skrll AcpiGetHandle(aa->aa_node->ad_handle, "_CRS", &sc->sc_crs); 155 1.2.2.2 skrll AcpiGetHandle(aa->aa_node->ad_handle, "_SRS", &sc->sc_srs); 156 1.2.2.2 skrll if (sc->sc_crs && sc->sc_srs) { 157 1.2.2.2 skrll /* XXX Why need this? */ 158 1.2.2.2 skrll sc->sc_crs_buffer.Pointer = NULL; 159 1.2.2.2 skrll sc->sc_crs_buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 160 1.2.2.2 skrll rv = AcpiGetCurrentResources(sc->sc_crs, &sc->sc_crs_buffer); 161 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 162 1.2.2.2 skrll sc->sc_crs = sc->sc_srs = NULL; 163 1.2.2.2 skrll } 164 1.2.2.2 skrll 165 1.2.2.2 skrll mem = acpi_res_mem(&res, 0); 166 1.2.2.2 skrll irq = acpi_res_irq(&res, 0); 167 1.2.2.2 skrll if (mem == NULL || irq == NULL) { 168 1.2.2.2 skrll aprint_error_dev(self, "incomplete resources\n"); 169 1.2.2.2 skrll goto cleanup; 170 1.2.2.2 skrll } 171 1.2.2.4 skrll sc->sc_memsize = mem->ar_length; 172 1.2.2.2 skrll 173 1.2.2.4 skrll if (bus_space_map(sc->sc_memt, mem->ar_base, sc->sc_memsize, 0, 174 1.2.2.4 skrll &sc->sc_memh)) { 175 1.2.2.2 skrll aprint_error_dev(self, "couldn't map registers\n"); 176 1.2.2.2 skrll goto cleanup; 177 1.2.2.2 skrll } 178 1.2.2.2 skrll 179 1.2.2.2 skrll /* XXX acpi_intr_establish? */ 180 1.2.2.2 skrll rv = AcpiOsInstallInterruptHandler(irq->ar_irq, sdhc_acpi_intr, sc); 181 1.2.2.2 skrll if (ACPI_FAILURE(rv)) { 182 1.2.2.2 skrll aprint_error_dev(self, 183 1.2.2.2 skrll "couldn't establish interrupt handler\n"); 184 1.2.2.4 skrll goto unmap; 185 1.2.2.2 skrll } 186 1.2.2.2 skrll sc->sc_irq = irq->ar_irq; 187 1.2.2.2 skrll 188 1.2.2.2 skrll sc->sc.sc_host = kmem_zalloc(sizeof(struct sdhc_host *), KM_NOSLEEP); 189 1.2.2.2 skrll if (sc->sc.sc_host == NULL) { 190 1.2.2.2 skrll aprint_error_dev(self, "couldn't alloc memory\n"); 191 1.2.2.4 skrll goto intr_disestablish; 192 1.2.2.2 skrll } 193 1.2.2.2 skrll 194 1.2.2.3 skrll /* Enable DMA transfer */ 195 1.2.2.3 skrll sc->sc.sc_flags |= SDHC_FLAG_USE_DMA; 196 1.2.2.3 skrll 197 1.2.2.4 skrll if (sdhc_host_found(&sc->sc, sc->sc_memt, sc->sc_memh, 198 1.2.2.4 skrll sc->sc_memsize) != 0) { 199 1.2.2.2 skrll aprint_error_dev(self, "couldn't initialize host\n"); 200 1.2.2.4 skrll goto fail; 201 1.2.2.2 skrll } 202 1.2.2.2 skrll 203 1.2.2.2 skrll if (!pmf_device_register1(self, sdhc_suspend, sdhc_acpi_resume, 204 1.2.2.2 skrll sdhc_shutdown)) { 205 1.2.2.2 skrll aprint_error_dev(self, "couldn't establish powerhook\n"); 206 1.2.2.2 skrll } 207 1.2.2.2 skrll 208 1.2.2.2 skrll acpi_resource_cleanup(&res); 209 1.2.2.2 skrll return; 210 1.2.2.2 skrll 211 1.2.2.4 skrll fail: 212 1.2.2.4 skrll if (sc->sc.sc_host != NULL) 213 1.2.2.4 skrll kmem_free(sc->sc.sc_host, sizeof(struct sdhc_host *)); 214 1.2.2.4 skrll sc->sc.sc_host = NULL; 215 1.2.2.4 skrll intr_disestablish: 216 1.2.2.2 skrll if (sc->sc_irq >= 0) 217 1.2.2.2 skrll /* XXX acpi_intr_disestablish? */ 218 1.2.2.2 skrll AcpiOsRemoveInterruptHandler(sc->sc_irq, sdhc_acpi_intr); 219 1.2.2.4 skrll sc->sc_irq = -1; 220 1.2.2.4 skrll unmap: 221 1.2.2.4 skrll bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsize); 222 1.2.2.4 skrll sc->sc_memsize = 0; 223 1.2.2.4 skrll cleanup: 224 1.2.2.4 skrll if (sc->sc_crs_buffer.Pointer) 225 1.2.2.4 skrll ACPI_FREE(sc->sc_crs_buffer.Pointer); 226 1.2.2.4 skrll sc->sc_crs_buffer.Pointer = NULL; 227 1.2.2.4 skrll acpi_resource_cleanup(&res); 228 1.2.2.2 skrll } 229 1.2.2.2 skrll 230 1.2.2.2 skrll static int 231 1.2.2.2 skrll sdhc_acpi_detach(device_t self, int flags) 232 1.2.2.2 skrll { 233 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 234 1.2.2.2 skrll int rv; 235 1.2.2.2 skrll 236 1.2.2.2 skrll pmf_device_deregister(self); 237 1.2.2.2 skrll 238 1.2.2.2 skrll rv = sdhc_detach(&sc->sc, flags); 239 1.2.2.2 skrll if (rv) 240 1.2.2.2 skrll return rv; 241 1.2.2.2 skrll 242 1.2.2.2 skrll if (sc->sc_irq >= 0) 243 1.2.2.2 skrll /* XXX acpi_intr_disestablish? */ 244 1.2.2.2 skrll AcpiOsRemoveInterruptHandler(sc->sc_irq, sdhc_acpi_intr); 245 1.2.2.2 skrll 246 1.2.2.2 skrll if (sc->sc.sc_host != NULL) 247 1.2.2.2 skrll kmem_free(sc->sc.sc_host, sizeof(struct sdhc_host *)); 248 1.2.2.2 skrll 249 1.2.2.4 skrll if (sc->sc_memsize > 0) 250 1.2.2.4 skrll bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsize); 251 1.2.2.4 skrll 252 1.2.2.4 skrll if (sc->sc_crs_buffer.Pointer) 253 1.2.2.4 skrll ACPI_FREE(sc->sc_crs_buffer.Pointer); 254 1.2.2.4 skrll 255 1.2.2.2 skrll return 0; 256 1.2.2.2 skrll } 257 1.2.2.2 skrll 258 1.2.2.2 skrll static bool 259 1.2.2.2 skrll sdhc_acpi_resume(device_t self, const pmf_qual_t *qual) 260 1.2.2.2 skrll { 261 1.2.2.2 skrll struct sdhc_acpi_softc *sc = device_private(self); 262 1.2.2.2 skrll ACPI_STATUS rv; 263 1.2.2.2 skrll 264 1.2.2.2 skrll if (sc->sc_crs && sc->sc_srs) { 265 1.2.2.2 skrll rv = AcpiSetCurrentResources(sc->sc_srs, &sc->sc_crs_buffer); 266 1.2.2.2 skrll if (ACPI_FAILURE(rv)) 267 1.2.2.2 skrll printf("%s: _SRS failed: %s\n", 268 1.2.2.2 skrll device_xname(self), AcpiFormatException(rv)); 269 1.2.2.2 skrll } 270 1.2.2.2 skrll 271 1.2.2.2 skrll return sdhc_resume(self, qual); 272 1.2.2.2 skrll } 273 1.2.2.2 skrll 274 1.2.2.2 skrll static uint32_t 275 1.2.2.2 skrll sdhc_acpi_intr(void *context) 276 1.2.2.2 skrll { 277 1.2.2.2 skrll struct sdhc_acpi_softc *sc = context; 278 1.2.2.2 skrll 279 1.2.2.2 skrll if (!sdhc_intr(&sc->sc)) 280 1.2.2.2 skrll return ACPI_INTERRUPT_NOT_HANDLED; 281 1.2.2.2 skrll return ACPI_INTERRUPT_HANDLED; 282 1.2.2.2 skrll } 283 1.2.2.4 skrll 284 1.2.2.4 skrll static void 285 1.2.2.4 skrll sdhc_acpi_intel_emmc_hw_reset(struct sdhc_softc *sc, struct sdhc_host *hp) 286 1.2.2.4 skrll { 287 1.2.2.4 skrll kmutex_t *plock = sdhc_host_lock(hp); 288 1.2.2.4 skrll uint8_t reg; 289 1.2.2.4 skrll 290 1.2.2.4 skrll mutex_enter(plock); 291 1.2.2.4 skrll 292 1.2.2.4 skrll reg = sdhc_host_read_1(hp, SDHC_POWER_CTL); 293 1.2.2.4 skrll reg |= 0x10; 294 1.2.2.4 skrll sdhc_host_write_1(hp, SDHC_POWER_CTL, reg); 295 1.2.2.4 skrll 296 1.2.2.4 skrll sdmmc_delay(10); 297 1.2.2.4 skrll 298 1.2.2.4 skrll reg &= ~0x10; 299 1.2.2.4 skrll sdhc_host_write_1(hp, SDHC_POWER_CTL, reg); 300 1.2.2.4 skrll 301 1.2.2.4 skrll sdmmc_delay(1000); 302 1.2.2.4 skrll 303 1.2.2.4 skrll mutex_exit(plock); 304 1.2.2.4 skrll } 305
Indexes created Wed Oct 15 03:09:54 GMT 2025