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hw: move target-independent files to subdirectories

Browse source 
This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-03-01 13:59:19 +01:00
parent ce3b494cb5
commit 49ab747f66
227 changed files with 205 additions and 208 deletions
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4
hw/sd/Makefile.objs
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common-obj-$(CONFIG_PL181) += pl181.o
common-obj-$(CONFIG_SSI_SD) += ssi-sd.o
common-obj-$(CONFIG_SD) += sd.o
common-obj-$(CONFIG_SDHCI) += sdhci.o

515
hw/sd/pl181.c Normal file
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/*
* Arm PrimeCell PL181 MultiMedia Card Interface
*
* Copyright (c) 2007 CodeSourcery.
* Written by Paul Brook
*
* This code is licensed under the GPL.
*/
#include "sysemu/blockdev.h"
#include "hw/sysbus.h"
#include "hw/sd.h"
//#define DEBUG_PL181 1
#ifdef DEBUG_PL181
#define DPRINTF(fmt, ...) \
do { printf("pl181: " fmt , ## __VA_ARGS__); } while (0)
#else
#define DPRINTF(fmt, ...) do {} while(0)
#endif
#define PL181_FIFO_LEN 16
typedef struct {
SysBusDevice busdev;
MemoryRegion iomem;
SDState *card;
uint32_t clock;
uint32_t power;
uint32_t cmdarg;
uint32_t cmd;
uint32_t datatimer;
uint32_t datalength;
uint32_t respcmd;
uint32_t response[4];
uint32_t datactrl;
uint32_t datacnt;
uint32_t status;
uint32_t mask[2];
int32_t fifo_pos;
int32_t fifo_len;
/* The linux 2.6.21 driver is buggy, and misbehaves if new data arrives
while it is reading the FIFO. We hack around this be defering
subsequent transfers until after the driver polls the status word.
http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=4446/1
*/
int32_t linux_hack;
uint32_t fifo[PL181_FIFO_LEN];
qemu_irq irq[2];
/* GPIO outputs for 'card is readonly' and 'card inserted' */
qemu_irq cardstatus[2];
} pl181_state;
static const VMStateDescription vmstate_pl181 = {
.name = "pl181",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(clock, pl181_state),
VMSTATE_UINT32(power, pl181_state),
VMSTATE_UINT32(cmdarg, pl181_state),
VMSTATE_UINT32(cmd, pl181_state),
VMSTATE_UINT32(datatimer, pl181_state),
VMSTATE_UINT32(datalength, pl181_state),
VMSTATE_UINT32(respcmd, pl181_state),
VMSTATE_UINT32_ARRAY(response, pl181_state, 4),
VMSTATE_UINT32(datactrl, pl181_state),
VMSTATE_UINT32(datacnt, pl181_state),
VMSTATE_UINT32(status, pl181_state),
VMSTATE_UINT32_ARRAY(mask, pl181_state, 2),
VMSTATE_INT32(fifo_pos, pl181_state),
VMSTATE_INT32(fifo_len, pl181_state),
VMSTATE_INT32(linux_hack, pl181_state),
VMSTATE_UINT32_ARRAY(fifo, pl181_state, PL181_FIFO_LEN),
VMSTATE_END_OF_LIST()
}
};
#define PL181_CMD_INDEX 0x3f
#define PL181_CMD_RESPONSE (1 << 6)
#define PL181_CMD_LONGRESP (1 << 7)
#define PL181_CMD_INTERRUPT (1 << 8)
#define PL181_CMD_PENDING (1 << 9)
#define PL181_CMD_ENABLE (1 << 10)
#define PL181_DATA_ENABLE (1 << 0)
#define PL181_DATA_DIRECTION (1 << 1)
#define PL181_DATA_MODE (1 << 2)
#define PL181_DATA_DMAENABLE (1 << 3)
#define PL181_STATUS_CMDCRCFAIL (1 << 0)
#define PL181_STATUS_DATACRCFAIL (1 << 1)
#define PL181_STATUS_CMDTIMEOUT (1 << 2)
#define PL181_STATUS_DATATIMEOUT (1 << 3)
#define PL181_STATUS_TXUNDERRUN (1 << 4)
#define PL181_STATUS_RXOVERRUN (1 << 5)
#define PL181_STATUS_CMDRESPEND (1 << 6)
#define PL181_STATUS_CMDSENT (1 << 7)
#define PL181_STATUS_DATAEND (1 << 8)
#define PL181_STATUS_DATABLOCKEND (1 << 10)
#define PL181_STATUS_CMDACTIVE (1 << 11)
#define PL181_STATUS_TXACTIVE (1 << 12)
#define PL181_STATUS_RXACTIVE (1 << 13)
#define PL181_STATUS_TXFIFOHALFEMPTY (1 << 14)
#define PL181_STATUS_RXFIFOHALFFULL (1 << 15)
#define PL181_STATUS_TXFIFOFULL (1 << 16)
#define PL181_STATUS_RXFIFOFULL (1 << 17)
#define PL181_STATUS_TXFIFOEMPTY (1 << 18)
#define PL181_STATUS_RXFIFOEMPTY (1 << 19)
#define PL181_STATUS_TXDATAAVLBL (1 << 20)
#define PL181_STATUS_RXDATAAVLBL (1 << 21)
#define PL181_STATUS_TX_FIFO (PL181_STATUS_TXACTIVE \
|PL181_STATUS_TXFIFOHALFEMPTY \
|PL181_STATUS_TXFIFOFULL \
|PL181_STATUS_TXFIFOEMPTY \
|PL181_STATUS_TXDATAAVLBL)
#define PL181_STATUS_RX_FIFO (PL181_STATUS_RXACTIVE \
|PL181_STATUS_RXFIFOHALFFULL \
|PL181_STATUS_RXFIFOFULL \
|PL181_STATUS_RXFIFOEMPTY \
|PL181_STATUS_RXDATAAVLBL)
static const unsigned char pl181_id[] =
{ 0x81, 0x11, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
static void pl181_update(pl181_state *s)
{
int i;
for (i = 0; i < 2; i++) {
qemu_set_irq(s->irq[i], (s->status & s->mask[i]) != 0);
}
}
static void pl181_fifo_push(pl181_state *s, uint32_t value)
{
int n;
if (s->fifo_len == PL181_FIFO_LEN) {
fprintf(stderr, "pl181: FIFO overflow\n");
return;
}
n = (s->fifo_pos + s->fifo_len) & (PL181_FIFO_LEN - 1);
s->fifo_len++;
s->fifo[n] = value;
DPRINTF("FIFO push %08x\n", (int)value);
}
static uint32_t pl181_fifo_pop(pl181_state *s)
{
uint32_t value;
if (s->fifo_len == 0) {
fprintf(stderr, "pl181: FIFO underflow\n");
return 0;
}
value = s->fifo[s->fifo_pos];
s->fifo_len--;
s->fifo_pos = (s->fifo_pos + 1) & (PL181_FIFO_LEN - 1);
DPRINTF("FIFO pop %08x\n", (int)value);
return value;
}
static void pl181_send_command(pl181_state *s)
{
SDRequest request;
uint8_t response[16];
int rlen;
request.cmd = s->cmd & PL181_CMD_INDEX;
request.arg = s->cmdarg;
DPRINTF("Command %d %08x\n", request.cmd, request.arg);
rlen = sd_do_command(s->card, &request, response);
if (rlen < 0)
goto error;
if (s->cmd & PL181_CMD_RESPONSE) {
#define RWORD(n) ((response[n] << 24) | (response[n + 1] << 16) \
| (response[n + 2] << 8) | response[n + 3])
if (rlen == 0 || (rlen == 4 && (s->cmd & PL181_CMD_LONGRESP)))
goto error;
if (rlen != 4 && rlen != 16)
goto error;
s->response[0] = RWORD(0);
if (rlen == 4) {
s->response[1] = s->response[2] = s->response[3] = 0;
} else {
s->response[1] = RWORD(4);
s->response[2] = RWORD(8);
s->response[3] = RWORD(12) & ~1;
}
DPRINTF("Response received\n");
s->status |= PL181_STATUS_CMDRESPEND;
#undef RWORD
} else {
DPRINTF("Command sent\n");
s->status |= PL181_STATUS_CMDSENT;
}
return;
error:
DPRINTF("Timeout\n");
s->status |= PL181_STATUS_CMDTIMEOUT;
}
/* Transfer data between the card and the FIFO. This is complicated by
the FIFO holding 32-bit words and the card taking data in single byte
chunks. FIFO bytes are transferred in little-endian order. */
static void pl181_fifo_run(pl181_state *s)
{
uint32_t bits;
uint32_t value = 0;
int n;
int is_read;
is_read = (s->datactrl & PL181_DATA_DIRECTION) != 0;
if (s->datacnt != 0 && (!is_read || sd_data_ready(s->card))
&& !s->linux_hack) {
if (is_read) {
n = 0;
while (s->datacnt && s->fifo_len < PL181_FIFO_LEN) {
value |= (uint32_t)sd_read_data(s->card) << (n * 8);
s->datacnt--;
n++;
if (n == 4) {
pl181_fifo_push(s, value);
n = 0;
value = 0;
}
}
if (n != 0) {
pl181_fifo_push(s, value);
}
} else { /* write */
n = 0;
while (s->datacnt > 0 && (s->fifo_len > 0 || n > 0)) {
if (n == 0) {
value = pl181_fifo_pop(s);
n = 4;
}
n--;
s->datacnt--;
sd_write_data(s->card, value & 0xff);
value >>= 8;
}
}
}
s->status &= ~(PL181_STATUS_RX_FIFO | PL181_STATUS_TX_FIFO);
if (s->datacnt == 0) {
s->status |= PL181_STATUS_DATAEND;
/* HACK: */
s->status |= PL181_STATUS_DATABLOCKEND;
DPRINTF("Transfer Complete\n");
}
if (s->datacnt == 0 && s->fifo_len == 0) {
s->datactrl &= ~PL181_DATA_ENABLE;
DPRINTF("Data engine idle\n");
} else {
/* Update FIFO bits. */
bits = PL181_STATUS_TXACTIVE | PL181_STATUS_RXACTIVE;
if (s->fifo_len == 0) {
bits |= PL181_STATUS_TXFIFOEMPTY;
bits |= PL181_STATUS_RXFIFOEMPTY;
} else {
bits |= PL181_STATUS_TXDATAAVLBL;
bits |= PL181_STATUS_RXDATAAVLBL;
}
if (s->fifo_len == 16) {
bits |= PL181_STATUS_TXFIFOFULL;
bits |= PL181_STATUS_RXFIFOFULL;
}
if (s->fifo_len <= 8) {
bits |= PL181_STATUS_TXFIFOHALFEMPTY;
}
if (s->fifo_len >= 8) {
bits |= PL181_STATUS_RXFIFOHALFFULL;
}
if (s->datactrl & PL181_DATA_DIRECTION) {
bits &= PL181_STATUS_RX_FIFO;
} else {
bits &= PL181_STATUS_TX_FIFO;
}
s->status |= bits;
}
}
static uint64_t pl181_read(void *opaque, hwaddr offset,
unsigned size)
{
pl181_state *s = (pl181_state *)opaque;
uint32_t tmp;
if (offset >= 0xfe0 && offset < 0x1000) {
return pl181_id[(offset - 0xfe0) >> 2];
}
switch (offset) {
case 0x00: /* Power */
return s->power;
case 0x04: /* Clock */
return s->clock;
case 0x08: /* Argument */
return s->cmdarg;
case 0x0c: /* Command */
return s->cmd;
case 0x10: /* RespCmd */
return s->respcmd;
case 0x14: /* Response0 */
return s->response[0];
case 0x18: /* Response1 */
return s->response[1];
case 0x1c: /* Response2 */
return s->response[2];
case 0x20: /* Response3 */
return s->response[3];
case 0x24: /* DataTimer */
return s->datatimer;
case 0x28: /* DataLength */
return s->datalength;
case 0x2c: /* DataCtrl */
return s->datactrl;
case 0x30: /* DataCnt */
return s->datacnt;
case 0x34: /* Status */
tmp = s->status;
if (s->linux_hack) {
s->linux_hack = 0;
pl181_fifo_run(s);
pl181_update(s);
}
return tmp;
case 0x3c: /* Mask0 */
return s->mask[0];
case 0x40: /* Mask1 */
return s->mask[1];
case 0x48: /* FifoCnt */
/* The documentation is somewhat vague about exactly what FifoCnt
does. On real hardware it appears to be when decrememnted
when a word is transferred between the FIFO and the serial
data engine. DataCnt is decremented after each byte is
transferred between the serial engine and the card.
We don't emulate this level of detail, so both can be the same. */
tmp = (s->datacnt + 3) >> 2;
if (s->linux_hack) {
s->linux_hack = 0;
pl181_fifo_run(s);
pl181_update(s);
}
return tmp;
case 0x80: case 0x84: case 0x88: case 0x8c: /* FifoData */
case 0x90: case 0x94: case 0x98: case 0x9c:
case 0xa0: case 0xa4: case 0xa8: case 0xac:
case 0xb0: case 0xb4: case 0xb8: case 0xbc:
if (s->fifo_len == 0) {
qemu_log_mask(LOG_GUEST_ERROR, "pl181: Unexpected FIFO read\n");
return 0;
} else {
uint32_t value;
value = pl181_fifo_pop(s);
s->linux_hack = 1;
pl181_fifo_run(s);
pl181_update(s);
return value;
}
default:
qemu_log_mask(LOG_GUEST_ERROR,
"pl181_read: Bad offset %x\n", (int)offset);
return 0;
}
}
static void pl181_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
pl181_state *s = (pl181_state *)opaque;
switch (offset) {
case 0x00: /* Power */
s->power = value & 0xff;
break;
case 0x04: /* Clock */
s->clock = value & 0xff;
break;
case 0x08: /* Argument */
s->cmdarg = value;
break;
case 0x0c: /* Command */
s->cmd = value;
if (s->cmd & PL181_CMD_ENABLE) {
if (s->cmd & PL181_CMD_INTERRUPT) {
qemu_log_mask(LOG_UNIMP,
"pl181: Interrupt mode not implemented\n");
} if (s->cmd & PL181_CMD_PENDING) {
qemu_log_mask(LOG_UNIMP,
"pl181: Pending commands not implemented\n");
} else {
pl181_send_command(s);
pl181_fifo_run(s);
}
/* The command has completed one way or the other. */
s->cmd &= ~PL181_CMD_ENABLE;
}
break;
case 0x24: /* DataTimer */
s->datatimer = value;
break;
case 0x28: /* DataLength */
s->datalength = value & 0xffff;
break;
case 0x2c: /* DataCtrl */
s->datactrl = value & 0xff;
if (value & PL181_DATA_ENABLE) {
s->datacnt = s->datalength;
pl181_fifo_run(s);
}
break;
case 0x38: /* Clear */
s->status &= ~(value & 0x7ff);
break;
case 0x3c: /* Mask0 */
s->mask[0] = value;
break;
case 0x40: /* Mask1 */
s->mask[1] = value;
break;
case 0x80: case 0x84: case 0x88: case 0x8c: /* FifoData */
case 0x90: case 0x94: case 0x98: case 0x9c:
case 0xa0: case 0xa4: case 0xa8: case 0xac:
case 0xb0: case 0xb4: case 0xb8: case 0xbc:
if (s->datacnt == 0) {
qemu_log_mask(LOG_GUEST_ERROR, "pl181: Unexpected FIFO write\n");
} else {
pl181_fifo_push(s, value);
pl181_fifo_run(s);
}
break;
default:
qemu_log_mask(LOG_GUEST_ERROR,
"pl181_write: Bad offset %x\n", (int)offset);
}
pl181_update(s);
}
static const MemoryRegionOps pl181_ops = {
.read = pl181_read,
.write = pl181_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void pl181_reset(DeviceState *d)
{
pl181_state *s = DO_UPCAST(pl181_state, busdev.qdev, d);
s->power = 0;
s->cmdarg = 0;
s->cmd = 0;
s->datatimer = 0;
s->datalength = 0;
s->respcmd = 0;
s->response[0] = 0;
s->response[1] = 0;
s->response[2] = 0;
s->response[3] = 0;
s->datatimer = 0;
s->datalength = 0;
s->datactrl = 0;
s->datacnt = 0;
s->status = 0;
s->linux_hack = 0;
s->mask[0] = 0;
s->mask[1] = 0;
/* We can assume our GPIO outputs have been wired up now */
sd_set_cb(s->card, s->cardstatus[0], s->cardstatus[1]);
}
static int pl181_init(SysBusDevice *dev)
{
pl181_state *s = FROM_SYSBUS(pl181_state, dev);
DriveInfo *dinfo;
memory_region_init_io(&s->iomem, &pl181_ops, s, "pl181", 0x1000);
sysbus_init_mmio(dev, &s->iomem);
sysbus_init_irq(dev, &s->irq[0]);
sysbus_init_irq(dev, &s->irq[1]);
qdev_init_gpio_out(&s->busdev.qdev, s->cardstatus, 2);
dinfo = drive_get_next(IF_SD);
s->card = sd_init(dinfo ? dinfo->bdrv : NULL, 0);
return 0;
}
static void pl181_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *k = DEVICE_CLASS(klass);
sdc->init = pl181_init;
k->vmsd = &vmstate_pl181;
k->reset = pl181_reset;
k->no_user = 1;
}
static const TypeInfo pl181_info = {
.name = "pl181",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(pl181_state),
.class_init = pl181_class_init,
};
static void pl181_register_types(void)
{
type_register_static(&pl181_info);
}
type_init(pl181_register_types)

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hw/sd/sd.c Normal file
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hw/sd/sdhci.c Normal file
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hw/sd/ssi-sd.c Normal file
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/*
* SSI to SD card adapter.
*
* Copyright (c) 2007-2009 CodeSourcery.
* Written by Paul Brook
*
* This code is licensed under the GNU GPL v2.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "sysemu/blockdev.h"
#include "hw/ssi.h"
#include "hw/sd.h"
//#define DEBUG_SSI_SD 1
#ifdef DEBUG_SSI_SD
#define DPRINTF(fmt, ...) \
do { printf("ssi_sd: " fmt , ## __VA_ARGS__); } while (0)
#define BADF(fmt, ...) \
do { fprintf(stderr, "ssi_sd: error: " fmt , ## __VA_ARGS__); exit(1);} while (0)
#else
#define DPRINTF(fmt, ...) do {} while(0)
#define BADF(fmt, ...) \
do { fprintf(stderr, "ssi_sd: error: " fmt , ## __VA_ARGS__);} while (0)
#endif
typedef enum {
SSI_SD_CMD,
SSI_SD_CMDARG,
SSI_SD_RESPONSE,
SSI_SD_DATA_START,
SSI_SD_DATA_READ,
} ssi_sd_mode;
typedef struct {
SSISlave ssidev;
ssi_sd_mode mode;
int cmd;
uint8_t cmdarg[4];
uint8_t response[5];
int arglen;
int response_pos;
int stopping;
SDState *sd;
} ssi_sd_state;
/* State word bits. */
#define SSI_SDR_LOCKED 0x0001
#define SSI_SDR_WP_ERASE 0x0002
#define SSI_SDR_ERROR 0x0004
#define SSI_SDR_CC_ERROR 0x0008
#define SSI_SDR_ECC_FAILED 0x0010
#define SSI_SDR_WP_VIOLATION 0x0020
#define SSI_SDR_ERASE_PARAM 0x0040
#define SSI_SDR_OUT_OF_RANGE 0x0080
#define SSI_SDR_IDLE 0x0100
#define SSI_SDR_ERASE_RESET 0x0200
#define SSI_SDR_ILLEGAL_COMMAND 0x0400
#define SSI_SDR_COM_CRC_ERROR 0x0800
#define SSI_SDR_ERASE_SEQ_ERROR 0x1000
#define SSI_SDR_ADDRESS_ERROR 0x2000
#define SSI_SDR_PARAMETER_ERROR 0x4000
static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val)
{
ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, dev);
/* Special case: allow CMD12 (STOP TRANSMISSION) while reading data. */
if (s->mode == SSI_SD_DATA_READ && val == 0x4d) {
s->mode = SSI_SD_CMD;
/* There must be at least one byte delay before the card responds. */
s->stopping = 1;
}
switch (s->mode) {
case SSI_SD_CMD:
if (val == 0xff) {
DPRINTF("NULL command\n");
return 0xff;
}
s->cmd = val & 0x3f;
s->mode = SSI_SD_CMDARG;
s->arglen = 0;
return 0xff;
case SSI_SD_CMDARG:
if (s->arglen == 4) {
SDRequest request;
uint8_t longresp[16];
/* FIXME: Check CRC. */
request.cmd = s->cmd;
request.arg = (s->cmdarg[0] << 24) | (s->cmdarg[1] << 16)
| (s->cmdarg[2] << 8) | s->cmdarg[3];
DPRINTF("CMD%d arg 0x%08x\n", s->cmd, request.arg);
s->arglen = sd_do_command(s->sd, &request, longresp);
if (s->arglen <= 0) {
s->arglen = 1;
s->response[0] = 4;
DPRINTF("SD command failed\n");
} else if (s->cmd == 58) {
/* CMD58 returns R3 response (OCR) */
DPRINTF("Returned OCR\n");
s->arglen = 5;
s->response[0] = 1;
memcpy(&s->response[1], longresp, 4);
} else if (s->arglen != 4) {
BADF("Unexpected response to cmd %d\n", s->cmd);
/* Illegal command is about as near as we can get. */
s->arglen = 1;
s->response[0] = 4;
} else {
/* All other commands return status. */
uint32_t cardstatus;
uint16_t status;
/* CMD13 returns a 2-byte statuse work. Other commands
only return the first byte. */
s->arglen = (s->cmd == 13) ? 2 : 1;
cardstatus = (longresp[0] << 24) | (longresp[1] << 16)
| (longresp[2] << 8) | longresp[3];
status = 0;
if (((cardstatus >> 9) & 0xf) < 4)
status |= SSI_SDR_IDLE;
if (cardstatus & ERASE_RESET)
status |= SSI_SDR_ERASE_RESET;
if (cardstatus & ILLEGAL_COMMAND)
status |= SSI_SDR_ILLEGAL_COMMAND;
if (cardstatus & COM_CRC_ERROR)
status |= SSI_SDR_COM_CRC_ERROR;
if (cardstatus & ERASE_SEQ_ERROR)
status |= SSI_SDR_ERASE_SEQ_ERROR;
if (cardstatus & ADDRESS_ERROR)
status |= SSI_SDR_ADDRESS_ERROR;
if (cardstatus & CARD_IS_LOCKED)
status |= SSI_SDR_LOCKED;
if (cardstatus & (LOCK_UNLOCK_FAILED | WP_ERASE_SKIP))
status |= SSI_SDR_WP_ERASE;
if (cardstatus & SD_ERROR)
status |= SSI_SDR_ERROR;
if (cardstatus & CC_ERROR)
status |= SSI_SDR_CC_ERROR;
if (cardstatus & CARD_ECC_FAILED)
status |= SSI_SDR_ECC_FAILED;
if (cardstatus & WP_VIOLATION)
status |= SSI_SDR_WP_VIOLATION;
if (cardstatus & ERASE_PARAM)
status |= SSI_SDR_ERASE_PARAM;
if (cardstatus & (OUT_OF_RANGE | CID_CSD_OVERWRITE))
status |= SSI_SDR_OUT_OF_RANGE;
/* ??? Don't know what Parameter Error really means, so
assume it's set if the second byte is nonzero. */
if (status & 0xff)
status |= SSI_SDR_PARAMETER_ERROR;
s->response[0] = status >> 8;
s->response[1] = status;
DPRINTF("Card status 0x%02x\n", status);
}
s->mode = SSI_SD_RESPONSE;
s->response_pos = 0;
} else {
s->cmdarg[s->arglen++] = val;
}
return 0xff;
case SSI_SD_RESPONSE:
if (s->stopping) {
s->stopping = 0;
return 0xff;
}
if (s->response_pos < s->arglen) {
DPRINTF("Response 0x%02x\n", s->response[s->response_pos]);
return s->response[s->response_pos++];
}
if (sd_data_ready(s->sd)) {
DPRINTF("Data read\n");
s->mode = SSI_SD_DATA_START;
} else {
DPRINTF("End of command\n");
s->mode = SSI_SD_CMD;
}
return 0xff;
case SSI_SD_DATA_START:
DPRINTF("Start read block\n");
s->mode = SSI_SD_DATA_READ;
return 0xfe;
case SSI_SD_DATA_READ:
val = sd_read_data(s->sd);
if (!sd_data_ready(s->sd)) {
DPRINTF("Data read end\n");
s->mode = SSI_SD_CMD;
}
return val;
}
/* Should never happen. */
return 0xff;
}
static void ssi_sd_save(QEMUFile *f, void *opaque)
{
SSISlave *ss = SSI_SLAVE(opaque);
ssi_sd_state *s = (ssi_sd_state *)opaque;
int i;
qemu_put_be32(f, s->mode);
qemu_put_be32(f, s->cmd);
for (i = 0; i < 4; i++)
qemu_put_be32(f, s->cmdarg[i]);
for (i = 0; i < 5; i++)
qemu_put_be32(f, s->response[i]);
qemu_put_be32(f, s->arglen);
qemu_put_be32(f, s->response_pos);
qemu_put_be32(f, s->stopping);
qemu_put_be32(f, ss->cs);
}
static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id)
{
SSISlave *ss = SSI_SLAVE(opaque);
ssi_sd_state *s = (ssi_sd_state *)opaque;
int i;
if (version_id != 1)
return -EINVAL;
s->mode = qemu_get_be32(f);
s->cmd = qemu_get_be32(f);
for (i = 0; i < 4; i++)
s->cmdarg[i] = qemu_get_be32(f);
for (i = 0; i < 5; i++)
s->response[i] = qemu_get_be32(f);
s->arglen = qemu_get_be32(f);
s->response_pos = qemu_get_be32(f);
s->stopping = qemu_get_be32(f);
ss->cs = qemu_get_be32(f);
return 0;
}
static int ssi_sd_init(SSISlave *dev)
{
ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, dev);
DriveInfo *dinfo;
s->mode = SSI_SD_CMD;
dinfo = drive_get_next(IF_SD);
s->sd = sd_init(dinfo ? dinfo->bdrv : NULL, 1);
register_savevm(&dev->qdev, "ssi_sd", -1, 1, ssi_sd_save, ssi_sd_load, s);
return 0;
}
static void ssi_sd_class_init(ObjectClass *klass, void *data)
{
SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
k->init = ssi_sd_init;
k->transfer = ssi_sd_transfer;
k->cs_polarity = SSI_CS_LOW;
}
static const TypeInfo ssi_sd_info = {
.name = "ssi-sd",
.parent = TYPE_SSI_SLAVE,
.instance_size = sizeof(ssi_sd_state),
.class_init = ssi_sd_class_init,
};
static void ssi_sd_register_types(void)
{
type_register_static(&ssi_sd_info);
}
type_init(ssi_sd_register_types)