sys/dev/disk/sdhci/sdhci_acpi.c

   1 /*-
   2  * Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include <sys/param.h>
  27 #include <sys/systm.h>
  28 #include <sys/bus.h>
  29 #include <sys/kernel.h>
  30 #include <sys/module.h>
  31 #include <sys/resource.h>
  32 #include <sys/rman.h>
  33 #include <sys/taskqueue.h>
  34
  35 #include "acpi.h"
  36 #include "opt_acpi.h"
  37 #include <dev/acpica/acpivar.h>
  38
  39 #include <bus/pci/pcivar.h>
  40
  41 #include <bus/mmc/bridge.h>
  42
  43 #include <dev/disk/sdhci/sdhci.h>
  44
  45 #include "mmcbr_if.h"
  46 #include "sdhci_if.h"
  47
  48 ACPI_MODULE_NAME("sdhci_acpi");
  49
  50 struct sdhci_acpi_softc {
  51         device_t        dev;            /* Controller device */
  52         ACPI_HANDLE     handle;
  53         struct resource *irq_res;       /* IRQ resource */
  54         void            *intrhand;      /* Interrupt handle */
  55
  56         struct sdhci_slot slot;
  57         struct resource *mem_res;       /* Memory resource */
  58 };
  59
  60 static uint8_t
  61 sdhci_acpi_read_1(device_t dev, struct sdhci_slot *slot __unused,
  62     bus_size_t off)
  63 {
  64         struct sdhci_acpi_softc *sc = device_get_softc(dev);
  65
  66         bus_barrier(sc->mem_res, 0, 0xFF,
  67             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
  68         return bus_read_1(sc->mem_res, off);
  69 }
  70
  71 static void
  72 sdhci_acpi_write_1(device_t dev, struct sdhci_slot *slot __unused,
  73     bus_size_t off, uint8_t val)
  74 {
  75         struct sdhci_acpi_softc *sc = device_get_softc(dev);
  76
  77         bus_barrier(sc->mem_res, 0, 0xFF,
  78             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
  79         bus_write_1(sc->mem_res, off, val);
  80 }
  81
  82 static uint16_t
  83 sdhci_acpi_read_2(device_t dev, struct sdhci_slot *slot __unused,
  84     bus_size_t off)
  85 {
  86         struct sdhci_acpi_softc *sc = device_get_softc(dev);
  87
  88         bus_barrier(sc->mem_res, 0, 0xFF,
  89             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
  90         return bus_read_2(sc->mem_res, off);
  91 }
  92
  93 static void
  94 sdhci_acpi_write_2(device_t dev, struct sdhci_slot *slot __unused,
  95     bus_size_t off, uint16_t val)
  96 {
  97         struct sdhci_acpi_softc *sc = device_get_softc(dev);
  98
  99         bus_barrier(sc->mem_res, 0, 0xFF,
 100             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
 101         bus_write_2(sc->mem_res, off, val);
 102 }
 103
 104 static uint32_t
 105 sdhci_acpi_read_4(device_t dev, struct sdhci_slot *slot __unused,
 106     bus_size_t off)
 107 {
 108         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 109
 110         bus_barrier(sc->mem_res, 0, 0xFF,
 111             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
 112         return bus_read_4(sc->mem_res, off);
 113 }
 114
 115 static void
 116 sdhci_acpi_write_4(device_t dev, struct sdhci_slot *slot __unused,
 117     bus_size_t off, uint32_t val)
 118 {
 119         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 120
 121         bus_barrier(sc->mem_res, 0, 0xFF,
 122             BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
 123         bus_write_4(sc->mem_res, off, val);
 124 }
 125
 126 static void
 127 sdhci_acpi_read_multi_4(device_t dev, struct sdhci_slot *slot __unused,
 128     bus_size_t off, uint32_t *data, bus_size_t count)
 129 {
 130         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 131
 132         bus_read_multi_stream_4(sc->mem_res, off, data, count);
 133 }
 134
 135 static void
 136 sdhci_acpi_write_multi_4(device_t dev, struct sdhci_slot *slot __unused,
 137     bus_size_t off, uint32_t *data, bus_size_t count)
 138 {
 139         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 140
 141         bus_write_multi_stream_4(sc->mem_res, off, data, count);
 142 }
 143
 144 static void sdhci_acpi_intr(void *arg);
 145
 146 #define INTEL_ATOM_QUIRKS_SDCARD                                        \
 147         SDHCI_QUIRK_WHITELIST_ADMA2 | SDHCI_QUIRK_WAIT_WHILE_BUSY
 148 #define INTEL_ATOM_QUIRKS_EMMC                                          \
 149         INTEL_ATOM_QUIRKS_SDCARD | SDHCI_QUIRK_MMC_DDR52 |              \
 150         SDHCI_QUIRK_CAPS_BIT63_FOR_MMC_HS400 | SDHCI_QUIRK_PRESET_VALUE_BROKEN
 151
 152 static struct {
 153         char *hid;
 154         char *uid;
 155         u_int quirks;
 156 } sdhci_devices[] = {
 157         /* The Intel Atom integrated controllers work fine with ADMA2. */
 158         /* Bay Trail / Braswell */
 159         {"80860F14", "1", INTEL_ATOM_QUIRKS_EMMC},
 160         {"80860F14", "3", INTEL_ATOM_QUIRKS_SDCARD},
 161         {"80860F16", NULL, INTEL_ATOM_QUIRKS_SDCARD},
 162         /* Apollo Lake */
 163         {"80865ACA", NULL,
 164             SDHCI_QUIRK_BROKEN_DMA |    /* APL18 erratum */
 165             INTEL_ATOM_QUIRKS_SDCARD},
 166         {"80865ACC", NULL,
 167             SDHCI_QUIRK_BROKEN_DMA |    /* APL18 erratum */
 168             INTEL_ATOM_QUIRKS_EMMC},
 169 };
 170
 171 static char *sdhci_ids[] = {
 172         "80860F14",
 173         "80860F16",
 174         "80865ACA",
 175         "80865ACC",
 176         NULL
 177 };
 178
 179 static int
 180 sdhci_acpi_probe(device_t dev)
 181 {
 182         if (acpi_disabled("sdhci"))
 183                 return (ENXIO);
 184
 185         if (ACPI_ID_PROBE(device_get_parent(dev), dev, sdhci_ids) == NULL)
 186                 return (ENXIO);
 187
 188         device_set_desc(dev, "SDHCI controller");
 189         return (0);
 190 }
 191
 192 static int
 193 sdhci_acpi_attach(device_t dev)
 194 {
 195         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 196         char *id;
 197         int err, i, rid, quirks;
 198
 199         id = ACPI_ID_PROBE(device_get_parent(dev), dev, sdhci_ids);
 200         if (id == NULL)
 201                 return (ENXIO);
 202
 203         sc->dev = dev;
 204         sc->handle = acpi_get_handle(dev);
 205
 206         quirks = 0;
 207         for (i = 0; i < NELEM(sdhci_devices); i++) {
 208                 if (strcmp(sdhci_devices[i].hid, id) == 0 &&
 209                     (sdhci_devices[i].uid == NULL ||
 210                      acpi_MatchUid(sc->handle, sdhci_devices[i].uid))) {
 211                         quirks = sdhci_devices[i].quirks;
 212                         break;
 213                 }
 214         }
 215         quirks &= ~sdhci_quirk_clear;
 216         quirks |= sdhci_quirk_set;
 217
 218         /* Allocate IRQ. */
 219         rid = 0;
 220         sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
 221                 RF_SHAREABLE);
 222         if (sc->irq_res == NULL) {
 223                 device_printf(dev, "Can't allocate IRQ\n");
 224                 err = ENOMEM;
 225                 goto error;
 226         }
 227
 228         /* Allocate memory. */
 229         rid = 0;
 230         sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
 231             RF_ACTIVE);
 232         if (sc->mem_res == NULL) {
 233                 device_printf(dev, "Can't allocate memory for slot %d\n", 0);
 234                 err = ENOMEM;
 235                 goto error;
 236         }
 237
 238         pci_set_powerstate(dev, PCI_POWERSTATE_D0);
 239
 240         sc->slot.quirks = quirks;
 241         if (sdhci_init_slot(dev, &sc->slot, 0) != 0) {
 242                 device_printf(dev, "sdhci initialization failed\n");
 243                 pci_set_powerstate(dev, PCI_POWERSTATE_D3);
 244                 err = ENXIO;
 245                 goto error;
 246         }
 247
 248         device_printf(dev, "%d slot(s) allocated\n", 1);
 249         /* Activate the interrupt */
 250         err = bus_setup_intr(dev, sc->irq_res, INTR_MPSAFE,
 251             sdhci_acpi_intr, sc, &sc->intrhand, NULL);
 252         if (err)
 253                 device_printf(dev, "Can't setup IRQ\n");
 254
 255         /* Process cards detection. */
 256         sdhci_start_slot(&sc->slot);
 257
 258         return (0);
 259
 260 error:
 261         if (sc->irq_res != NULL) {
 262                 bus_release_resource(dev, SYS_RES_IRQ,
 263                     rman_get_rid(sc->irq_res), sc->irq_res);
 264         }
 265         if (sc->mem_res != NULL) {
 266                 bus_release_resource(dev, SYS_RES_MEMORY,
 267                     rman_get_rid(sc->mem_res), sc->mem_res);
 268         }
 269         return (err);
 270 }
 271
 272 static int
 273 sdhci_acpi_detach(device_t dev)
 274 {
 275         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 276
 277         bus_teardown_intr(dev, sc->irq_res, sc->intrhand);
 278         bus_release_resource(dev, SYS_RES_IRQ,
 279             rman_get_rid(sc->irq_res), sc->irq_res);
 280
 281         sdhci_cleanup_slot(&sc->slot);
 282         bus_release_resource(dev, SYS_RES_MEMORY,
 283             rman_get_rid(sc->mem_res), sc->mem_res);
 284         pci_set_powerstate(dev, PCI_POWERSTATE_D3);
 285         return (0);
 286 }
 287
 288 static int
 289 sdhci_acpi_suspend(device_t dev)
 290 {
 291         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 292         int err;
 293
 294         err = bus_generic_suspend(dev);
 295         if (err)
 296                 return (err);
 297         sdhci_generic_suspend(&sc->slot);
 298         return (0);
 299 }
 300
 301 static int
 302 sdhci_acpi_resume(device_t dev)
 303 {
 304         struct sdhci_acpi_softc *sc = device_get_softc(dev);
 305
 306         sdhci_generic_resume(&sc->slot);
 307         return (bus_generic_resume(dev));
 308 }
 309
 310 static void
 311 sdhci_acpi_intr(void *arg)
 312 {
 313         struct sdhci_acpi_softc *sc = (struct sdhci_acpi_softc *)arg;
 314
 315         sdhci_generic_intr(&sc->slot);
 316 }
 317
 318 static device_method_t sdhci_methods[] = {
 319         /* device_if */
 320         DEVMETHOD(device_probe, sdhci_acpi_probe),
 321         DEVMETHOD(device_attach, sdhci_acpi_attach),
 322         DEVMETHOD(device_detach, sdhci_acpi_detach),
 323         DEVMETHOD(device_suspend, sdhci_acpi_suspend),
 324         DEVMETHOD(device_resume, sdhci_acpi_resume),
 325
 326         /* Bus interface */
 327         DEVMETHOD(bus_read_ivar,        sdhci_generic_read_ivar),
 328         DEVMETHOD(bus_write_ivar,       sdhci_generic_write_ivar),
 329
 330         /* mmcbr_if */
 331         DEVMETHOD(mmcbr_update_ios,     sdhci_generic_update_ios),
 332         DEVMETHOD(mmcbr_switch_vccq,    sdhci_generic_switch_vccq),
 333         DEVMETHOD(mmcbr_request,        sdhci_generic_request),
 334         DEVMETHOD(mmcbr_get_ro,         sdhci_generic_get_ro),
 335         DEVMETHOD(mmcbr_acquire_host,   sdhci_generic_acquire_host),
 336         DEVMETHOD(mmcbr_release_host,   sdhci_generic_release_host),
 337
 338         /* SDHCI accessors */
 339         DEVMETHOD(sdhci_read_1,         sdhci_acpi_read_1),
 340         DEVMETHOD(sdhci_read_2,         sdhci_acpi_read_2),
 341         DEVMETHOD(sdhci_read_4,         sdhci_acpi_read_4),
 342         DEVMETHOD(sdhci_read_multi_4,   sdhci_acpi_read_multi_4),
 343         DEVMETHOD(sdhci_write_1,        sdhci_acpi_write_1),
 344         DEVMETHOD(sdhci_write_2,        sdhci_acpi_write_2),
 345         DEVMETHOD(sdhci_write_4,        sdhci_acpi_write_4),
 346         DEVMETHOD(sdhci_write_multi_4,  sdhci_acpi_write_multi_4),
 347         DEVMETHOD(sdhci_set_uhs_timing, sdhci_generic_set_uhs_timing),
 348
 349         DEVMETHOD_END
 350 };
 351
 352 static driver_t sdhci_acpi_driver = {
 353         "sdhci_acpi",
 354         sdhci_methods,
 355         sizeof(struct sdhci_acpi_softc),
 356         .gpri = KOBJ_GPRI_ACPI
 357 };
 358 static devclass_t sdhci_acpi_devclass;
 359
 360 DRIVER_MODULE(sdhci_acpi, acpi, sdhci_acpi_driver, sdhci_acpi_devclass, NULL,
 361     NULL);
 362 MODULE_DEPEND(sdhci_acpi, sdhci, 1, 1, 1);