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hw/sd/ssi-sd: use the SDBus API, connect the SDCard to the bus

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On reset the bus will reset the card,
we can now drop the device_reset() call.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180216022933.10945-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-02-22 15:12:52 +00:00 • committed by Peter Maydell
parent 3d0369ba49
commit c3abd91309
1 changed files with 19 additions and 13 deletions
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32
hw/sd/ssi-sd.c
View file

@ -47,7 +47,7 @@ typedef struct {
int32_t arglen; int32_t arglen;
int32_t response_pos; int32_t response_pos;
int32_t stopping; int32_t stopping;
SDState *sd; SDBus sdbus;
} ssi_sd_state; } ssi_sd_state;
#define TYPE_SSI_SD "ssi-sd" #define TYPE_SSI_SD "ssi-sd"
@ -100,7 +100,7 @@ static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val)
request.arg = (s->cmdarg[0] << 24) | (s->cmdarg[1] << 16) request.arg = (s->cmdarg[0] << 24) | (s->cmdarg[1] << 16)
| (s->cmdarg[2] << 8) | s->cmdarg[3]; | (s->cmdarg[2] << 8) | s->cmdarg[3];
DPRINTF("CMD%d arg 0x%08x\n", s->cmd, request.arg); DPRINTF("CMD%d arg 0x%08x\n", s->cmd, request.arg);
s->arglen = sd_do_command(s->sd, &request, longresp); s->arglen = sdbus_do_command(&s->sdbus, &request, longresp);
if (s->arglen <= 0) { if (s->arglen <= 0) {
s->arglen = 1; s->arglen = 1;
s->response[0] = 4; s->response[0] = 4;
@ -177,7 +177,7 @@ static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val)
DPRINTF("Response 0x%02x\n", s->response[s->response_pos]); DPRINTF("Response 0x%02x\n", s->response[s->response_pos]);
return s->response[s->response_pos++]; return s->response[s->response_pos++];
} }
if (sd_data_ready(s->sd)) { if (sdbus_data_ready(&s->sdbus)) {
DPRINTF("Data read\n"); DPRINTF("Data read\n");
s->mode = SSI_SD_DATA_START; s->mode = SSI_SD_DATA_START;
} else { } else {
@ -190,8 +190,8 @@ static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val)
s->mode = SSI_SD_DATA_READ; s->mode = SSI_SD_DATA_READ;
return 0xfe; return 0xfe;
case SSI_SD_DATA_READ: case SSI_SD_DATA_READ:
val = sd_read_data(s->sd); val = sdbus_read_data(&s->sdbus);
if (!sd_data_ready(s->sd)) { if (!sdbus_data_ready(&s->sdbus)) {
DPRINTF("Data read end\n"); DPRINTF("Data read end\n");
s->mode = SSI_SD_CMD; s->mode = SSI_SD_CMD;
} }
@ -242,13 +242,24 @@ static const VMStateDescription vmstate_ssi_sd = {
static void ssi_sd_realize(SSISlave *d, Error **errp) static void ssi_sd_realize(SSISlave *d, Error **errp)
{ {
ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, d); ssi_sd_state *s = FROM_SSI_SLAVE(ssi_sd_state, d);
DeviceState *carddev;
DriveInfo *dinfo; DriveInfo *dinfo;
Error *err = NULL;
qbus_create_inplace(&s->sdbus, sizeof(s->sdbus), TYPE_SD_BUS,
DEVICE(d), "sd-bus");
/* Create and plug in the sd card */
/* FIXME use a qdev drive property instead of drive_get_next() */ /* FIXME use a qdev drive property instead of drive_get_next() */
dinfo = drive_get_next(IF_SD); dinfo = drive_get_next(IF_SD);
s->sd = sd_init(dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, true); carddev = qdev_create(&s->sdbus.qbus, TYPE_SD_CARD);
if (s->sd == NULL) { if (dinfo) {
error_setg(errp, "Device initialization failed."); qdev_prop_set_drive(carddev, "drive", blk_by_legacy_dinfo(dinfo), &err);
}
object_property_set_bool(OBJECT(carddev), true, "spi", &err);
object_property_set_bool(OBJECT(carddev), true, "realized", &err);
if (err) {
error_setg(errp, "failed to init SD card: %s", error_get_pretty(err));
return; return;
} }
} }
@ -264,11 +275,6 @@ static void ssi_sd_reset(DeviceState *dev)
s->arglen = 0; s->arglen = 0;
s->response_pos = 0; s->response_pos = 0;
s->stopping = 0; s->stopping = 0;
/* Since we're still using the legacy SD API the card is not plugged
* into any bus, and we must reset it manually.
*/
device_reset(DEVICE(s->sd));
} }
static void ssi_sd_class_init(ObjectClass *klass, void *data) static void ssi_sd_class_init(ObjectClass *klass, void *data)