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[PATCH v4 06/10] hw/sd/pl181: Expose a SDBus and connect the SDCard to i
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v4 06/10] hw/sd/pl181: Expose a SDBus and connect the SDCard to it |
Date: |
Sun, 5 Jul 2020 22:46:26 +0200 |
Convert the controller to the SDBus API:
- add the a TYPE_PL181_BUS object of type TYPE_SD_BUS,
- adapt the SDBusClass set_inserted/set_readonly handlers
- create the bus in the PL181 controller
- switch legacy sd_*() API to the sdbus_*() API.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
Since v3:
Addressed Peter comment, adding TYPE_PL181_BUS:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg515866.html
---
hw/sd/pl181.c | 67 +++++++++++++++++++++++++++++++++++++++------------
1 file changed, 51 insertions(+), 16 deletions(-)
diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
index ab4cd733a4..f6de06ece8 100644
--- a/hw/sd/pl181.c
+++ b/hw/sd/pl181.c
@@ -17,6 +17,7 @@
#include "qemu/module.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
+#include "hw/qdev-properties.h"
//#define DEBUG_PL181 1
@@ -32,11 +33,13 @@ do { printf("pl181: " fmt , ## __VA_ARGS__); } while (0)
#define TYPE_PL181 "pl181"
#define PL181(obj) OBJECT_CHECK(PL181State, (obj), TYPE_PL181)
+#define TYPE_PL181_BUS "pl181-bus"
+
typedef struct PL181State {
SysBusDevice parent_obj;
MemoryRegion iomem;
- SDState *card;
+ SDBus sdbus;
uint32_t clock;
uint32_t power;
uint32_t cmdarg;
@@ -183,7 +186,7 @@ static void pl181_do_command(PL181State *s)
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);
+ rlen = sdbus_do_command(&s->sdbus, &request, response);
if (rlen < 0)
goto error;
if (s->cmd & PL181_CMD_RESPONSE) {
@@ -224,12 +227,12 @@ static void pl181_fifo_run(PL181State *s)
int is_read;
is_read = (s->datactrl & PL181_DATA_DIRECTION) != 0;
- if (s->datacnt != 0 && (!is_read || sd_data_ready(s->card))
+ if (s->datacnt != 0 && (!is_read || sdbus_data_ready(&s->sdbus))
&& !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);
+ value |= (uint32_t)sdbus_read_data(&s->sdbus) << (n * 8);
s->datacnt--;
n++;
if (n == 4) {
@@ -250,7 +253,7 @@ static void pl181_fifo_run(PL181State *s)
}
n--;
s->datacnt--;
- sd_write_data(s->card, value & 0xff);
+ sdbus_write_data(&s->sdbus, value & 0xff);
value >>= 8;
}
}
@@ -456,6 +459,20 @@ static const MemoryRegionOps pl181_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
+static void pl181_set_readonly(DeviceState *dev, bool level)
+{
+ PL181State *s = (PL181State *)dev;
+
+ qemu_set_irq(s->card_readonly, level);
+}
+
+static void pl181_set_inserted(DeviceState *dev, bool level)
+{
+ PL181State *s = (PL181State *)dev;
+
+ qemu_set_irq(s->card_inserted, level);
+}
+
static void pl181_reset(DeviceState *d)
{
PL181State *s = PL181(d);
@@ -479,12 +496,9 @@ static void pl181_reset(DeviceState *d)
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->card_readonly, s->card_inserted);
- /* Since we're still using the legacy SD API the card is not plugged
- * into any bus, and we must reset it manually.
- */
- device_legacy_reset(DEVICE(s->card));
+ /* Reset other state based on current card insertion/readonly status */
+ pl181_set_inserted(DEVICE(s), sdbus_get_inserted(&s->sdbus));
+ pl181_set_readonly(DEVICE(s), sdbus_get_readonly(&s->sdbus));
}
static void pl181_init(Object *obj)
@@ -499,19 +513,24 @@ static void pl181_init(Object *obj)
sysbus_init_irq(sbd, &s->irq[1]);
qdev_init_gpio_out_named(dev, &s->card_readonly, "card-read-only", 1);
qdev_init_gpio_out_named(dev, &s->card_inserted, "card-inserted", 1);
+
+ qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
+ TYPE_PL181_BUS, dev, "sd-bus");
}
static void pl181_realize(DeviceState *dev, Error **errp)
{
- PL181State *s = PL181(dev);
+ DeviceState *card;
DriveInfo *dinfo;
/* FIXME use a qdev drive property instead of drive_get_next() */
+ card = qdev_new(TYPE_SD_CARD);
dinfo = drive_get_next(IF_SD);
- s->card = sd_init(dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, false);
- if (s->card == NULL) {
- error_setg(errp, "sd_init failed");
- }
+ qdev_prop_set_drive_err(card, "drive", blk_by_legacy_dinfo(dinfo),
+ &error_fatal);
+ qdev_realize_and_unref(card,
+ qdev_get_child_bus(dev, "sd-bus"),
+ &error_fatal);
}
static void pl181_class_init(ObjectClass *klass, void *data)
@@ -533,9 +552,25 @@ static const TypeInfo pl181_info = {
.class_init = pl181_class_init,
};
+static void pl181_bus_class_init(ObjectClass *klass, void *data)
+{
+ SDBusClass *sbc = SD_BUS_CLASS(klass);
+
+ sbc->set_inserted = pl181_set_inserted;
+ sbc->set_readonly = pl181_set_readonly;
+}
+
+static const TypeInfo pl181_bus_info = {
+ .name = TYPE_PL181_BUS,
+ .parent = TYPE_SD_BUS,
+ .instance_size = sizeof(SDBus),
+ .class_init = pl181_bus_class_init,
+};
+
static void pl181_register_types(void)
{
type_register_static(&pl181_info);
+ type_register_static(&pl181_bus_info);
}
type_init(pl181_register_types)
--
2.21.3
- [PATCH v4 00/10] hw/sd: convert legacy SDHCI devices to the SDBus API, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 01/10] hw/sd/pl181: Replace fprintf(stderr, "*\n") with error_report(), Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 02/10] hw/sd/pl181: Rename pl181_send_command() as pl181_do_command(), Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 03/10] hw/sd/pl181: Add TODO to use Fifo32 API, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 04/10] hw/arm/versatilepb: Comment to remember some IRQs lines are left unwired, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 05/10] hw/sd/pl181: Use named GPIOs, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 06/10] hw/sd/pl181: Expose a SDBus and connect the SDCard to it,
Philippe Mathieu-Daudé <=
- [PATCH v4 07/10] hw/sd/pl181: Do not create SD card within the SDHCI controller, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 08/10] hw/sd/pl181: Replace disabled fprintf()s by trace events, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 09/10] hw/sd/sdcard: make sd_data_ready() static, Philippe Mathieu-Daudé, 2020/07/05
- [PATCH v4 10/10] hw/sd: move sdcard legacy API to 'hw/sd/sdcard_legacy.h', Philippe Mathieu-Daudé, 2020/07/05
- Re: [PATCH v4 00/10] hw/sd: convert legacy SDHCI devices to the SDBus API, Peter Maydell, 2020/07/09