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/* $OpenBSD: ufshcivar.h,v 1.10 2024/10/08 00:46:29 jsg Exp $ */
/*
* Copyright (c) 2022 Marcus Glocker <mglocker@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define UFSHCI_READ_4(sc, x) \
bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (x))
#define UFSHCI_WRITE_4(sc, x, y) \
bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (x), (y))
#define UFSHCI_DMA_MAP(_udm) ((_udm)->udm_map)
#define UFSHCI_DMA_LEN(_udm) ((_udm)->udm_map->dm_segs[0].ds_len)
#define UFSHCI_DMA_DVA(_udm) ((uint64_t)(_udm)->udm_map->dm_segs[0].ds_addr)
#define UFSHCI_DMA_KVA(_udm) ((void *)(_udm)->udm_kva)
struct ufshci_dmamem {
bus_dmamap_t udm_map;
bus_dma_segment_t udm_seg;
size_t udm_size;
caddr_t udm_kva;
};
struct ufshci_softc;
/* SCSI */
struct ufshci_ccb {
SIMPLEQ_ENTRY(ufshci_ccb) ccb_entry;
bus_dmamap_t ccb_dmamap;
void *ccb_cookie;
int ccb_slot;
#define CCB_STATUS_FREE 0
#define CCB_STATUS_INPROGRESS 1
#define CCB_STATUS_READY2FREE 2
int ccb_status;
void (*ccb_done)(struct ufshci_softc *,
struct ufshci_ccb *);
};
SIMPLEQ_HEAD(ufshci_ccb_list, ufshci_ccb);
struct ufshci_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_size_t sc_ios;
bus_dma_tag_t sc_dmat;
uint8_t sc_iacth;
struct mutex sc_cmd_mtx;
#define UFSHCI_FLAGS_AGGR_INTR 1
uint8_t sc_flags;
uint32_t sc_ver;
uint32_t sc_cap;
uint32_t sc_hcpid;
uint32_t sc_hcmid;
uint8_t sc_nutmrs;
uint8_t sc_rtt;
uint8_t sc_nutrs;
struct ufshci_dmamem *sc_dmamem_utmrd;
struct ufshci_dmamem *sc_dmamem_utrd;
struct ufshci_dmamem *sc_dmamem_ucd;
/* SCSI */
struct scsi_iopool sc_iopool;
struct mutex sc_ccb_mtx;
struct ufshci_ccb_list sc_ccb_list;
struct ufshci_ccb *sc_ccbs;
};
int ufshci_intr(void *);
int ufshci_attach(struct ufshci_softc *);
int ufshci_activate(struct device *, int);
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