diff options
Diffstat (limited to 'include/hw/sd/sd.h')
| -rw-r--r-- | include/hw/sd/sd.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 404d589..d5d273a 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -67,10 +67,51 @@ typedef struct { } SDRequest; typedef struct SDState SDState; +typedef struct SDBus SDBus; #define TYPE_SD_CARD "sd-card" #define SD_CARD(obj) OBJECT_CHECK(SDState, (obj), TYPE_SD_CARD) +#define SD_CARD_CLASS(klass) \ + OBJECT_CLASS_CHECK(SDCardClass, (klass), TYPE_SD_CARD) +#define SD_CARD_GET_CLASS(obj) \ + OBJECT_GET_CLASS(SDCardClass, (obj), TYPE_SD_CARD) +typedef struct { + /*< private >*/ + DeviceClass parent_class; + /*< public >*/ + + int (*do_command)(SDState *sd, SDRequest *req, uint8_t *response); + void (*write_data)(SDState *sd, uint8_t value); + uint8_t (*read_data)(SDState *sd); + bool (*data_ready)(SDState *sd); + void (*enable)(SDState *sd, bool enable); + bool (*get_inserted)(SDState *sd); + bool (*get_readonly)(SDState *sd); +} SDCardClass; + +#define TYPE_SD_BUS "sd-bus" +#define SD_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SD_BUS) +#define SD_BUS_CLASS(klass) OBJECT_CLASS_CHECK(SDBusClass, (klass), TYPE_SD_BUS) +#define SD_BUS_GET_CLASS(obj) OBJECT_GET_CLASS(SDBusClass, (obj), TYPE_SD_BUS) + +struct SDBus { + BusState qbus; +}; + +typedef struct { + /*< private >*/ + BusClass parent_class; + /*< public >*/ + + /* These methods are called by the SD device to notify the controller + * when the card insertion or readonly status changes + */ + void (*set_inserted)(DeviceState *dev, bool inserted); + void (*set_readonly)(DeviceState *dev, bool readonly); +} SDBusClass; + +/* Legacy functions to be used only by non-qdevified callers */ SDState *sd_init(BlockBackend *bs, bool is_spi); int sd_do_command(SDState *sd, SDRequest *req, uint8_t *response); @@ -78,6 +119,27 @@ void sd_write_data(SDState *sd, uint8_t value); uint8_t sd_read_data(SDState *sd); void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert); bool sd_data_ready(SDState *sd); +/* sd_enable should not be used -- it is only used on the nseries boards, + * where it is part of a broken implementation of the MMC card slot switch + * (there should be two card slots which are multiplexed to a single MMC + * controller, but instead we model it with one card and controller and + * disable the card when the second slot is selected, so it looks like the + * second slot is always empty). + */ void sd_enable(SDState *sd, bool enable); +/* Functions to be used by qdevified callers (working via + * an SDBus rather than directly with SDState) + */ +int sdbus_do_command(SDBus *sd, SDRequest *req, uint8_t *response); +void sdbus_write_data(SDBus *sd, uint8_t value); +uint8_t sdbus_read_data(SDBus *sd); +bool sdbus_data_ready(SDBus *sd); +bool sdbus_get_inserted(SDBus *sd); +bool sdbus_get_readonly(SDBus *sd); + +/* Functions to be used by SD devices to report back to qdevified controllers */ +void sdbus_set_inserted(SDBus *sd, bool inserted); +void sdbus_set_readonly(SDBus *sd, bool inserted); + #endif /* __hw_sd_h */ |