hw/sd/sdcard: Extract TYPE_SDMMC_COMMON from TYPE_SD_CARD

In order to keep eMMC model simpler to maintain,
extract common properties and the common code from
class_init to the (internal) TYPE_SDMMC_COMMON.

Update the corresponding QOM cast macros.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240703134356.85972-6-philmd@linaro.org>

3 files changed, 51 insertions, 28 deletions

diff --git a/hw/sd/core.c b/hw/sd/core.c
index 52d5d90..4b30218 100644
--- a/hw/sd/core.c
+++ b/hw/sd/core.c
@@ -24,6 +24,7 @@
 #include "hw/sd/sd.h"
 #include "qemu/module.h"
 #include "qapi/error.h"
+#include "sdmmc-internal.h"
 #include "trace.h"
 
 static inline const char *sdbus_name(SDBus *sdbus)
@@ -39,7 +40,7 @@ static SDState *get_card(SDBus *sdbus)
     if (!kid) {
         return NULL;
     }
-    return SD_CARD(kid->child);
+    return SDMMC_COMMON(kid->child);
 }
 
 uint8_t sdbus_get_dat_lines(SDBus *sdbus)
@@ -48,7 +49,7 @@ uint8_t sdbus_get_dat_lines(SDBus *sdbus)
     uint8_t dat_lines = 0b1111; /* 4 bit bus width */
 
     if (slave) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(slave);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(slave);
 
         if (sc->get_dat_lines) {
             dat_lines = sc->get_dat_lines(slave);
@@ -65,7 +66,7 @@ bool sdbus_get_cmd_line(SDBus *sdbus)
     bool cmd_line = true;
 
     if (slave) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(slave);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(slave);
 
         if (sc->get_cmd_line) {
             cmd_line = sc->get_cmd_line(slave);
@@ -82,7 +83,7 @@ void sdbus_set_voltage(SDBus *sdbus, uint16_t millivolts)
 
     trace_sdbus_set_voltage(sdbus_name(sdbus), millivolts);
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         assert(sc->set_voltage);
         sc->set_voltage(card, millivolts);
@@ -95,7 +96,7 @@ int sdbus_do_command(SDBus *sdbus, SDRequest *req, uint8_t *response)
 
     trace_sdbus_command(sdbus_name(sdbus), req->cmd, req->arg);
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         return sc->do_command(card, req, response);
     }
@@ -109,7 +110,7 @@ void sdbus_write_byte(SDBus *sdbus, uint8_t value)
 
     trace_sdbus_write(sdbus_name(sdbus), value);
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         sc->write_byte(card, value);
     }
@@ -121,7 +122,7 @@ void sdbus_write_data(SDBus *sdbus, const void *buf, size_t length)
     const uint8_t *data = buf;
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         for (size_t i = 0; i < length; i++) {
             trace_sdbus_write(sdbus_name(sdbus), data[i]);
@@ -136,7 +137,7 @@ uint8_t sdbus_read_byte(SDBus *sdbus)
     uint8_t value = 0;
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         value = sc->read_byte(card);
     }
@@ -151,7 +152,7 @@ void sdbus_read_data(SDBus *sdbus, void *buf, size_t length)
     uint8_t *data = buf;
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         for (size_t i = 0; i < length; i++) {
             data[i] = sc->read_byte(card);
@@ -165,7 +166,7 @@ bool sdbus_receive_ready(SDBus *sdbus)
     SDState *card = get_card(sdbus);
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         return sc->receive_ready(card);
     }
@@ -178,7 +179,7 @@ bool sdbus_data_ready(SDBus *sdbus)
     SDState *card = get_card(sdbus);
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         return sc->data_ready(card);
     }
@@ -191,7 +192,7 @@ bool sdbus_get_inserted(SDBus *sdbus)
     SDState *card = get_card(sdbus);
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         return sc->get_inserted(card);
     }
@@ -204,7 +205,7 @@ bool sdbus_get_readonly(SDBus *sdbus)
     SDState *card = get_card(sdbus);
 
     if (card) {
-        SDCardClass *sc = SD_CARD_GET_CLASS(card);
+        SDCardClass *sc = SDMMC_COMMON_GET_CLASS(card);
 
         return sc->get_readonly(card);
     }
@@ -250,7 +251,7 @@ void sdbus_reparent_card(SDBus *from, SDBus *to)
         return;
     }
 
-    sc = SD_CARD_GET_CLASS(card);
+    sc = SDMMC_COMMON_GET_CLASS(card);
     readonly = sc->get_readonly(card);
 
     sdbus_set_inserted(from, false);
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 058a70a..d6a07f0 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -679,8 +679,8 @@ static inline uint64_t sd_addr_to_wpnum(uint64_t addr)
 
 static void sd_reset(DeviceState *dev)
 {
-    SDState *sd = SD_CARD(dev);
-    SDCardClass *sc = SD_CARD_GET_CLASS(sd);
+    SDState *sd = SDMMC_COMMON(dev);
+    SDCardClass *sc = SDMMC_COMMON_GET_CLASS(sd);
     uint64_t size;
     uint64_t sect;
 
@@ -2377,8 +2377,8 @@ static const SDProto sd_proto_sd = {
 
 static void sd_instance_init(Object *obj)
 {
-    SDState *sd = SD_CARD(obj);
-    SDCardClass *sc = SD_CARD_GET_CLASS(sd);
+    SDState *sd = SDMMC_COMMON(obj);
+    SDCardClass *sc = SDMMC_COMMON_GET_CLASS(sd);
 
     sd->proto = sc->proto;
     sd->last_cmd_name = "UNSET";
@@ -2388,14 +2388,14 @@ static void sd_instance_init(Object *obj)
 
 static void sd_instance_finalize(Object *obj)
 {
-    SDState *sd = SD_CARD(obj);
+    SDState *sd = SDMMC_COMMON(obj);
 
     timer_free(sd->ocr_power_timer);
 }
 
 static void sd_realize(DeviceState *dev, Error **errp)
 {
-    SDState *sd = SD_CARD(dev);
+    SDState *sd = SDMMC_COMMON(dev);
     int ret;
 
     switch (sd->spec_version) {
@@ -2446,20 +2446,23 @@ static void sd_realize(DeviceState *dev, Error **errp)
     }
 }
 
+static Property sdmmc_common_properties[] = {
+    DEFINE_PROP_DRIVE("drive", SDState, blk),
+    DEFINE_PROP_END_OF_LIST()
+};
+
 static Property sd_properties[] = {
     DEFINE_PROP_UINT8("spec_version", SDState,
                       spec_version, SD_PHY_SPECv3_01_VERS),
-    DEFINE_PROP_DRIVE("drive", SDState, blk),
     DEFINE_PROP_END_OF_LIST()
 };
 
-static void sd_class_init(ObjectClass *klass, void *data)
+static void sdmmc_common_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SDCardClass *sc = SD_CARD_CLASS(klass);
+    SDCardClass *sc = SDMMC_COMMON_CLASS(klass);
 
-    dc->realize = sd_realize;
-    device_class_set_props(dc, sd_properties);
+    device_class_set_props(dc, sdmmc_common_properties);
     dc->vmsd = &sd_vmstate;
     dc->reset = sd_reset;
     dc->bus_type = TYPE_SD_BUS;
@@ -2476,6 +2479,16 @@ static void sd_class_init(ObjectClass *klass, void *data)
     sc->enable = sd_enable;
     sc->get_inserted = sd_get_inserted;
     sc->get_readonly = sd_get_readonly;
+}
+
+static void sd_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SDCardClass *sc = SDMMC_COMMON_CLASS(klass);
+
+    dc->realize = sd_realize;
+    device_class_set_props(dc, sd_properties);
+
     sc->set_cid = sd_set_cid;
     sc->set_csd = sd_set_csd;
     sc->proto = &sd_proto_sd;
@@ -2490,7 +2503,7 @@ static void sd_class_init(ObjectClass *klass, void *data)
 static void sd_spi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SDCardClass *sc = SD_CARD_CLASS(klass);
+    SDCardClass *sc = SDMMC_COMMON_CLASS(klass);
 
     dc->desc = "SD SPI";
     sc->proto = &sd_proto_spi;
@@ -2498,15 +2511,21 @@ static void sd_spi_class_init(ObjectClass *klass, void *data)
 
 static const TypeInfo sd_types[] = {
     {
-        .name           = TYPE_SD_CARD,
+        .name           = TYPE_SDMMC_COMMON,
         .parent         = TYPE_DEVICE,
+        .abstract       = true,
         .instance_size  = sizeof(SDState),
         .class_size     = sizeof(SDCardClass),
-        .class_init     = sd_class_init,
+        .class_init     = sdmmc_common_class_init,
         .instance_init  = sd_instance_init,
         .instance_finalize = sd_instance_finalize,
     },
     {
+        .name           = TYPE_SD_CARD,
+        .parent         = TYPE_SDMMC_COMMON,
+        .class_init     = sd_class_init,
+    },
+    {
         .name           = TYPE_SD_CARD_SPI,
         .parent         = TYPE_SD_CARD,
         .class_init     = sd_spi_class_init,
diff --git a/hw/sd/sdmmc-internal.h b/hw/sd/sdmmc-internal.h
index cc0b69e..91eb5b6 100644
--- a/hw/sd/sdmmc-internal.h
+++ b/hw/sd/sdmmc-internal.h
@@ -11,6 +11,9 @@
 #ifndef SDMMC_INTERNAL_H
 #define SDMMC_INTERNAL_H
 
+#define TYPE_SDMMC_COMMON "sdmmc-common"
+DECLARE_OBJ_CHECKERS(SDState, SDCardClass, SDMMC_COMMON, TYPE_SDMMC_COMMON)
+
 /*
  * EXT_CSD Modes segment
  *