* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <inttypes.h>
+#include "qemu/osdep.h"
#include "hw/hw.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "qemu/timer.h"
#include "qemu/bitops.h"
#include "sdhci-internal.h"
+#include "qemu/log.h"
/* host controller debug messages */
#ifndef SDHC_DEBUG
} \
} while (0)
+#define TYPE_SDHCI_BUS "sdhci-bus"
+#define SDHCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SDHCI_BUS)
+
/* Default SD/MMC host controller features information, which will be
* presented in CAPABILITIES register of generic SD host controller at reset.
* If not stated otherwise:
(SDHC_CAPAB_BASECLKFREQ << 8) | (SDHC_CAPAB_TOUNIT << 7) | \
(SDHC_CAPAB_TOCLKFREQ))
+#define MASK_TRNMOD 0x0037
#define MASKED_WRITE(reg, mask, val) (reg = (reg & (mask)) | (val))
static uint8_t sdhci_slotint(SDHCIState *s)
}
}
-static void sdhci_insert_eject_cb(void *opaque, int irq, int level)
+static void sdhci_set_inserted(DeviceState *dev, bool level)
{
- SDHCIState *s = (SDHCIState *)opaque;
+ SDHCIState *s = (SDHCIState *)dev;
DPRINT_L1("Card state changed: %s!\n", level ? "insert" : "eject");
if ((s->norintsts & SDHC_NIS_REMOVE) && level) {
}
}
-static void sdhci_card_readonly_cb(void *opaque, int irq, int level)
+static void sdhci_set_readonly(DeviceState *dev, bool level)
{
- SDHCIState *s = (SDHCIState *)opaque;
+ SDHCIState *s = (SDHCIState *)dev;
if (level) {
s->prnsts &= ~SDHC_WRITE_PROTECT;
static void sdhci_reset(SDHCIState *s)
{
+ DeviceState *dev = DEVICE(s);
+
timer_del(s->insert_timer);
timer_del(s->transfer_timer);
/* Set all registers to 0. Capabilities registers are not cleared
* initialization */
memset(&s->sdmasysad, 0, (uintptr_t)&s->capareg - (uintptr_t)&s->sdmasysad);
- sd_set_cb(s->card, s->ro_cb, s->eject_cb);
+ /* Reset other state based on current card insertion/readonly status */
+ sdhci_set_inserted(dev, sdbus_get_inserted(&s->sdbus));
+ sdhci_set_readonly(dev, sdbus_get_readonly(&s->sdbus));
+
s->data_count = 0;
s->stopped_state = sdhc_not_stopped;
+ s->pending_insert_state = false;
+}
+
+static void sdhci_poweron_reset(DeviceState *dev)
+{
+ /* QOM (ie power-on) reset. This is identical to reset
+ * commanded via device register apart from handling of the
+ * 'pending insert on powerup' quirk.
+ */
+ SDHCIState *s = (SDHCIState *)dev;
+
+ sdhci_reset(s);
+
+ if (s->pending_insert_quirk) {
+ s->pending_insert_state = true;
+ }
}
static void sdhci_data_transfer(void *opaque);
request.cmd = s->cmdreg >> 8;
request.arg = s->argument;
DPRINT_L1("sending CMD%u ARG[0x%08x]\n", request.cmd, request.arg);
- rlen = sd_do_command(s->card, &request, response);
+ rlen = sdbus_do_command(&s->sdbus, &request, response);
if (s->cmdreg & SDHC_CMD_RESPONSE) {
if (rlen == 4) {
request.cmd = 0x0C;
request.arg = 0;
DPRINT_L1("Automatically issue CMD%d %08x\n", request.cmd, request.arg);
- sd_do_command(s->card, &request, response);
+ sdbus_do_command(&s->sdbus, &request, response);
/* Auto CMD12 response goes to the upper Response register */
s->rspreg[3] = (response[0] << 24) | (response[1] << 16) |
(response[2] << 8) | response[3];
}
for (index = 0; index < (s->blksize & 0x0fff); index++) {
- s->fifo_buffer[index] = sd_read_data(s->card);
+ s->fifo_buffer[index] = sdbus_read_data(&s->sdbus);
}
/* New data now available for READ through Buffer Port Register */
}
for (index = 0; index < (s->blksize & 0x0fff); index++) {
- sd_write_data(s->card, s->fifo_buffer[index]);
+ sdbus_write_data(&s->sdbus, s->fifo_buffer[index]);
}
/* Next data can be written through BUFFER DATORT register */
uint32_t boundary_chk = 1 << (((s->blksize & 0xf000) >> 12) + 12);
uint32_t boundary_count = boundary_chk - (s->sdmasysad % boundary_chk);
+ if (!(s->trnmod & SDHC_TRNS_BLK_CNT_EN) || !s->blkcnt) {
+ qemu_log_mask(LOG_UNIMP, "infinite transfer is not supported\n");
+ return;
+ }
+
/* XXX: Some sd/mmc drivers (for example, u-boot-slp) do not account for
* possible stop at page boundary if initial address is not page aligned,
* allow them to work properly */
while (s->blkcnt) {
if (s->data_count == 0) {
for (n = 0; n < block_size; n++) {
- s->fifo_buffer[n] = sd_read_data(s->card);
+ s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
}
begin = s->data_count;
boundary_count -= block_size - begin;
}
dma_memory_read(&address_space_memory, s->sdmasysad,
- &s->fifo_buffer[begin], s->data_count);
+ &s->fifo_buffer[begin], s->data_count - begin);
s->sdmasysad += s->data_count - begin;
if (s->data_count == block_size) {
for (n = 0; n < block_size; n++) {
- sd_write_data(s->card, s->fifo_buffer[n]);
+ sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
s->data_count = 0;
if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
}
/* single block SDMA transfer */
-
static void sdhci_sdma_transfer_single_block(SDHCIState *s)
{
int n;
if (s->trnmod & SDHC_TRNS_READ) {
for (n = 0; n < datacnt; n++) {
- s->fifo_buffer[n] = sd_read_data(s->card);
+ s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
dma_memory_write(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
dma_memory_read(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
for (n = 0; n < datacnt; n++) {
- sd_write_data(s->card, s->fifo_buffer[n]);
+ sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
}
-
- if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
- s->blkcnt--;
- }
+ s->blkcnt--;
sdhci_end_transfer(s);
}
while (length) {
if (s->data_count == 0) {
for (n = 0; n < block_size; n++) {
- s->fifo_buffer[n] = sd_read_data(s->card);
+ s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
}
begin = s->data_count;
dscr.addr += s->data_count - begin;
if (s->data_count == block_size) {
for (n = 0; n < block_size; n++) {
- sd_write_data(s->card, s->fifo_buffer[n]);
+ sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
s->data_count = 0;
if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
if (s->trnmod & SDHC_TRNS_DMA) {
switch (SDHC_DMA_TYPE(s->hostctl)) {
case SDHC_CTRL_SDMA:
- if ((s->trnmod & SDHC_TRNS_MULTI) &&
- (!(s->trnmod & SDHC_TRNS_BLK_CNT_EN) || s->blkcnt == 0)) {
- break;
- }
-
if ((s->blkcnt == 1) || !(s->trnmod & SDHC_TRNS_MULTI)) {
sdhci_sdma_transfer_single_block(s);
} else {
break;
}
} else {
- if ((s->trnmod & SDHC_TRNS_READ) && sd_data_ready(s->card)) {
+ if ((s->trnmod & SDHC_TRNS_READ) && sdbus_data_ready(&s->sdbus)) {
s->prnsts |= SDHC_DOING_READ | SDHC_DATA_INHIBIT |
SDHC_DAT_LINE_ACTIVE;
sdhci_read_block_from_card(s);
/* Writing to last byte of sdmasysad might trigger transfer */
if (!(mask & 0xFF000000) && TRANSFERRING_DATA(s->prnsts) && s->blkcnt &&
s->blksize && SDHC_DMA_TYPE(s->hostctl) == SDHC_CTRL_SDMA) {
- sdhci_sdma_transfer_multi_blocks(s);
+ if (s->trnmod & SDHC_TRNS_MULTI) {
+ sdhci_sdma_transfer_multi_blocks(s);
+ } else {
+ sdhci_sdma_transfer_single_block(s);
+ }
}
break;
case SDHC_BLKSIZE:
if (!(s->capareg & SDHC_CAN_DO_DMA)) {
value &= ~SDHC_TRNS_DMA;
}
- MASKED_WRITE(s->trnmod, mask, value);
+ MASKED_WRITE(s->trnmod, mask, value & MASK_TRNMOD);
MASKED_WRITE(s->cmdreg, mask >> 16, value >> 16);
/* Writing to the upper byte of CMDREG triggers SD command generation */
} else {
s->norintsts &= ~SDHC_NIS_ERR;
}
+ /* Quirk for Raspberry Pi: pending card insert interrupt
+ * appears when first enabled after power on */
+ if ((s->norintstsen & SDHC_NISEN_INSERT) && s->pending_insert_state) {
+ assert(s->pending_insert_quirk);
+ s->norintsts |= SDHC_NIS_INSERT;
+ s->pending_insert_state = false;
+ }
sdhci_update_irq(s);
break;
case SDHC_NORINTSIGEN:
}
}
-static void sdhci_initfn(SDHCIState *s, BlockBackend *blk)
+static void sdhci_initfn(SDHCIState *s)
{
- s->card = sd_init(blk, false);
- if (s->card == NULL) {
- exit(1);
- }
- s->eject_cb = qemu_allocate_irq(sdhci_insert_eject_cb, s, 0);
- s->ro_cb = qemu_allocate_irq(sdhci_card_readonly_cb, s, 0);
- sd_set_cb(s->card, s->ro_cb, s->eject_cb);
+ qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
+ TYPE_SDHCI_BUS, DEVICE(s), "sd-bus");
s->insert_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, sdhci_raise_insertion_irq, s);
s->transfer_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, sdhci_data_transfer, s);
s->fifo_buffer = NULL;
}
+static bool sdhci_pending_insert_vmstate_needed(void *opaque)
+{
+ SDHCIState *s = opaque;
+
+ return s->pending_insert_state;
+}
+
+static const VMStateDescription sdhci_pending_insert_vmstate = {
+ .name = "sdhci/pending-insert",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = sdhci_pending_insert_vmstate_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(pending_insert_state, SDHCIState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
const VMStateDescription sdhci_vmstate = {
.name = "sdhci",
.version_id = 1,
VMSTATE_UINT16(data_count, SDHCIState),
VMSTATE_UINT64(admasysaddr, SDHCIState),
VMSTATE_UINT8(stopped_state, SDHCIState),
- VMSTATE_VBUFFER_UINT32(fifo_buffer, SDHCIState, 1, NULL, 0, buf_maxsz),
+ VMSTATE_VBUFFER_UINT32(fifo_buffer, SDHCIState, 1, NULL, buf_maxsz),
VMSTATE_TIMER_PTR(insert_timer, SDHCIState),
VMSTATE_TIMER_PTR(transfer_timer, SDHCIState),
VMSTATE_END_OF_LIST()
- }
+ },
+ .subsections = (const VMStateDescription*[]) {
+ &sdhci_pending_insert_vmstate,
+ NULL
+ },
};
/* Capabilities registers provide information on supported features of this
* specific host controller implementation */
static Property sdhci_pci_properties[] = {
- /*
- * We currently fuse controller and card into a single device
- * model, but we intend to separate them. For that purpose, the
- * properties that belong to the card are marked as experimental.
- */
- DEFINE_PROP_DRIVE("x-drive", SDHCIState, blk),
DEFINE_PROP_UINT32("capareg", SDHCIState, capareg,
SDHC_CAPAB_REG_DEFAULT),
DEFINE_PROP_UINT32("maxcurr", SDHCIState, maxcurr, 0),
SDHCIState *s = PCI_SDHCI(dev);
dev->config[PCI_CLASS_PROG] = 0x01; /* Standard Host supported DMA */
dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */
- sdhci_initfn(s, s->blk);
+ sdhci_initfn(s);
s->buf_maxsz = sdhci_get_fifolen(s);
s->fifo_buffer = g_malloc0(s->buf_maxsz);
s->irq = pci_allocate_irq(dev);
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
dc->vmsd = &sdhci_vmstate;
dc->props = sdhci_pci_properties;
+ dc->reset = sdhci_poweron_reset;
}
static const TypeInfo sdhci_pci_info = {
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(SDHCIState),
.class_init = sdhci_pci_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { },
+ },
};
static Property sdhci_sysbus_properties[] = {
DEFINE_PROP_UINT32("capareg", SDHCIState, capareg,
SDHC_CAPAB_REG_DEFAULT),
DEFINE_PROP_UINT32("maxcurr", SDHCIState, maxcurr, 0),
+ DEFINE_PROP_BOOL("pending-insert-quirk", SDHCIState, pending_insert_quirk,
+ false),
DEFINE_PROP_END_OF_LIST(),
};
static void sdhci_sysbus_init(Object *obj)
{
SDHCIState *s = SYSBUS_SDHCI(obj);
- DriveInfo *di;
- /* FIXME use a qdev drive property instead of drive_get_next() */
- di = drive_get_next(IF_SD);
- sdhci_initfn(s, di ? blk_by_legacy_dinfo(di) : NULL);
+ sdhci_initfn(s);
}
static void sdhci_sysbus_finalize(Object *obj)
dc->vmsd = &sdhci_vmstate;
dc->props = sdhci_sysbus_properties;
dc->realize = sdhci_sysbus_realize;
- /* Reason: instance_init() method uses drive_get_next() */
- dc->cannot_instantiate_with_device_add_yet = true;
+ dc->reset = sdhci_poweron_reset;
}
static const TypeInfo sdhci_sysbus_info = {
.class_init = sdhci_sysbus_class_init,
};
+static void sdhci_bus_class_init(ObjectClass *klass, void *data)
+{
+ SDBusClass *sbc = SD_BUS_CLASS(klass);
+
+ sbc->set_inserted = sdhci_set_inserted;
+ sbc->set_readonly = sdhci_set_readonly;
+}
+
+static const TypeInfo sdhci_bus_info = {
+ .name = TYPE_SDHCI_BUS,
+ .parent = TYPE_SD_BUS,
+ .instance_size = sizeof(SDBus),
+ .class_init = sdhci_bus_class_init,
+};
+
static void sdhci_register_types(void)
{
type_register_static(&sdhci_pci_info);
type_register_static(&sdhci_sysbus_info);
+ type_register_static(&sdhci_bus_info);
}
type_init(sdhci_register_types)
projects / qemu.git / blobdiff