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hw/sd/pxa2xx_mmci: Update to use new SDBus APIs 

Now the PXA2xx MMCI device is QOMified itself, we can
update it to use the SDBus APIs to talk to the SD card.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1455646193-13238-9-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2016-02-18 14:16:19 +00:00
parent 7a9468c925
commit a9563e75e4
1 changed files with 66 additions and 14 deletions
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80
hw/sd/pxa2xx_mmci.c
View File

@ -17,10 +17,14 @@
#include "hw/sd/sd.h"
#include "hw/qdev.h"
#include "hw/qdev-properties.h"
#include "qemu/error-report.h"
#define TYPE_PXA2XX_MMCI "pxa2xx-mmci"
#define PXA2XX_MMCI(obj) OBJECT_CHECK(PXA2xxMMCIState, (obj), TYPE_PXA2XX_MMCI)
#define TYPE_PXA2XX_MMCI_BUS "pxa2xx-mmci-bus"
#define PXA2XX_MMCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_PXA2XX_MMCI_BUS)
struct PXA2xxMMCIState {
SysBusDevice parent_obj;
@ -28,9 +32,11 @@ struct PXA2xxMMCIState {
qemu_irq irq;
qemu_irq rx_dma;
qemu_irq tx_dma;
qemu_irq inserted;
qemu_irq readonly;
BlockBackend *blk;
SDState *card;
SDBus sdbus;
uint32_t status;
uint32_t clkrt;
@ -130,7 +136,7 @@ static void pxa2xx_mmci_fifo_update(PXA2xxMMCIState *s)
if (s->cmdat & CMDAT_WR_RD) {
while (s->bytesleft && s->tx_len) {
sd_write_data(s->card, s->tx_fifo[s->tx_start ++]);
sdbus_write_data(&s->sdbus, s->tx_fifo[s->tx_start++]);
s->tx_start &= 0x1f;
s->tx_len --;
s->bytesleft --;
@ -140,7 +146,7 @@ static void pxa2xx_mmci_fifo_update(PXA2xxMMCIState *s)
} else
while (s->bytesleft && s->rx_len < 32) {
s->rx_fifo[(s->rx_start + (s->rx_len ++)) & 0x1f] =
sd_read_data(s->card);
sdbus_read_data(&s->sdbus);
s->bytesleft --;
s->intreq |= INT_RXFIFO_REQ;
}
@ -174,7 +180,7 @@ static void pxa2xx_mmci_wakequeues(PXA2xxMMCIState *s)
request.arg = s->arg;
request.crc = 0; /* FIXME */
rsplen = sd_do_command(s->card, &request, response);
rsplen = sdbus_do_command(&s->sdbus, &request, response);
s->intreq |= INT_END_CMD;
memset(s->resp_fifo, 0, sizeof(s->resp_fifo));
@ -483,32 +489,59 @@ PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
BlockBackend *blk, qemu_irq irq,
qemu_irq rx_dma, qemu_irq tx_dma)
{
DeviceState *dev;
DeviceState *dev, *carddev;
SysBusDevice *sbd;
PXA2xxMMCIState *s;
Error *err = NULL;
dev = qdev_create(NULL, TYPE_PXA2XX_MMCI);
s = PXA2XX_MMCI(dev);
/* Reach into the device and initialize the SD card. This is
* unclean but will vanish when we update to SDBus APIs.
*/
s->card = sd_init(s->blk, false);
if (s->card == NULL) {
exit(1);
}
qdev_init_nofail(dev);
sbd = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(sbd, 0, base);
sysbus_connect_irq(sbd, 0, irq);
qdev_connect_gpio_out_named(dev, "rx-dma", 0, rx_dma);
qdev_connect_gpio_out_named(dev, "tx-dma", 0, tx_dma);
/* Create and plug in the sd card */
carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD);
qdev_prop_set_drive(carddev, "drive", blk, &err);
if (err) {
error_report("failed to init SD card: %s", error_get_pretty(err));
return NULL;
}
object_property_set_bool(OBJECT(carddev), true, "realized", &err);
if (err) {
error_report("failed to init SD card: %s", error_get_pretty(err));
return NULL;
}
return s;
}
static void pxa2xx_mmci_set_inserted(DeviceState *dev, bool inserted)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(dev);
qemu_set_irq(s->inserted, inserted);
}
static void pxa2xx_mmci_set_readonly(DeviceState *dev, bool readonly)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(dev);
qemu_set_irq(s->readonly, readonly);
}
void pxa2xx_mmci_handlers(PXA2xxMMCIState *s, qemu_irq readonly,
qemu_irq coverswitch)
{
sd_set_cb(s->card, readonly, coverswitch);
DeviceState *dev = DEVICE(s);
s->readonly = readonly;
s->inserted = coverswitch;
pxa2xx_mmci_set_inserted(dev, sdbus_get_inserted(&s->sdbus));
pxa2xx_mmci_set_readonly(dev, sdbus_get_readonly(&s->sdbus));
}
static void pxa2xx_mmci_instance_init(Object *obj)
@ -526,6 +559,17 @@ static void pxa2xx_mmci_instance_init(Object *obj)
register_savevm(NULL, "pxa2xx_mmci", 0, 0,
pxa2xx_mmci_save, pxa2xx_mmci_load, s);
qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
TYPE_PXA2XX_MMCI_BUS, DEVICE(obj), "sd-bus");
}
static void pxa2xx_mmci_bus_class_init(ObjectClass *klass, void *data)
{
SDBusClass *sbc = SD_BUS_CLASS(klass);
sbc->set_inserted = pxa2xx_mmci_set_inserted;
sbc->set_readonly = pxa2xx_mmci_set_readonly;
}
static const TypeInfo pxa2xx_mmci_info = {
@ -535,9 +579,17 @@ static const TypeInfo pxa2xx_mmci_info = {
.instance_init = pxa2xx_mmci_instance_init,
};
static const TypeInfo pxa2xx_mmci_bus_info = {
.name = TYPE_PXA2XX_MMCI_BUS,
.parent = TYPE_SD_BUS,
.instance_size = sizeof(SDBus),
.class_init = pxa2xx_mmci_bus_class_init,
};
static void pxa2xx_mmci_register_types(void)
{
type_register_static(&pxa2xx_mmci_info);
type_register_static(&pxa2xx_mmci_bus_info);
}
type_init(pxa2xx_mmci_register_types)