Differential D15955 Diff 55260 sys/arm/allwinner/aw_mmc.c

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sys/arm/allwinner/aw_mmc.c

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static int aw_mmc_get_ro(device_t, device_t);		static int aw_mmc_get_ro(device_t, device_t);
static int aw_mmc_acquire_host(device_t, device_t);		static int aw_mmc_acquire_host(device_t, device_t);
static int aw_mmc_release_host(device_t, device_t);		static int aw_mmc_release_host(device_t, device_t);
#ifdef MMCCAM		#ifdef MMCCAM
static void aw_mmc_cam_action(struct cam_sim , union ccb );		static void aw_mmc_cam_action(struct cam_sim , union ccb );
static void aw_mmc_cam_poll(struct cam_sim *);		static void aw_mmc_cam_poll(struct cam_sim *);
static int aw_mmc_cam_settran_settings(struct aw_mmc_softc , union ccb );		static int aw_mmc_cam_settran_settings(struct aw_mmc_softc , union ccb );
static int aw_mmc_cam_request(struct aw_mmc_softc , union ccb );		static int aw_mmc_cam_request(struct aw_mmc_softc , union ccb );
		static void aw_mmc_cam_start_discovery(device_t);
static void aw_mmc_cam_handle_mmcio(struct cam_sim , union ccb );		static void aw_mmc_cam_handle_mmcio(struct cam_sim , union ccb );
#endif		#endif

#define AW_MMC_LOCK(_sc) mtx_lock(&(_sc)->aw_mtx)		#define AW_MMC_LOCK(_sc) mtx_lock(&(_sc)->aw_mtx)
#define AW_MMC_UNLOCK(_sc) mtx_unlock(&(_sc)->aw_mtx)		#define AW_MMC_UNLOCK(_sc) mtx_unlock(&(_sc)->aw_mtx)
#define AW_MMC_READ_4(_sc, _reg) \		#define AW_MMC_READ_4(_sc, _reg) \
bus_read_4((_sc)->aw_res[AW_MMC_MEMRES], _reg)		bus_read_4((_sc)->aw_res[AW_MMC_MEMRES], _reg)
#define AW_MMC_WRITE_4(_sc, _reg, _value) \		#define AW_MMC_WRITE_4(_sc, _reg, _value) \
▲ Show 20 Lines • Show All 186 Lines • ▼ Show 20 Lines	#endif
}		}
sc->ccb = ccb;		sc->ccb = ccb;
/* aw_mmc_request locks again */		/* aw_mmc_request locks again */
AW_MMC_UNLOCK(sc);		AW_MMC_UNLOCK(sc);
aw_mmc_request(sc->aw_dev, NULL, NULL);		aw_mmc_request(sc->aw_dev, NULL, NULL);

return (0);		return (0);
}		}

		static void
		aw_mmc_cam_start_discovery(device_t dev)
		{
		struct aw_mmc_softc *sc;
		union ccb *ccb;
		uint32_t pathid;

		sc = device_get_softc(dev);

		pathid = cam_sim_path(sc->sim);
		impUnsubmitted Done Inline Actions I can't see what this protects in this code. Do you need it? imp: I can't see what this protects in this code. Do you need it?
		kibabAuthorUnsubmitted Done Inline Actions Seems indeed this is excessive. kibab: Seems indeed this is excessive.
		ccb = xpt_alloc_ccb_nowait();
		if (ccb == NULL) {
		device_printf(dev, "Unable to alloc CCB for rescan\n");
		return;
		}

		/*
		* We create a rescan request for BUS:0:0, since the card
		* will be at lun 0.
		*/
		if (xpt_create_path(&ccb->ccb_h.path, NULL, pathid,
		/* target / 0, / lun */ 0) != CAM_REQ_CMP) {
		device_printf(dev, "Unable to create path for rescan\n");
		xpt_free_ccb(ccb);
		return;
		}
		xpt_rescan(ccb);
		}
#endif /* MMCCAM */		#endif /* MMCCAM */

static int		static int
aw_mmc_probe(device_t dev)		aw_mmc_probe(device_t dev)
{		{

if (!ofw_bus_status_okay(dev))		if (!ofw_bus_status_okay(dev))
return (ENXIO);		return (ENXIO);
▲ Show 20 Lines • Show All 150 Lines • ▼ Show 20 Lines	if (xpt_bus_register(sc->sim, sc->aw_dev, 0) != 0) {
device_printf(dev, "cannot register SCSI pass-through bus\n");		device_printf(dev, "cannot register SCSI pass-through bus\n");
cam_sim_free(sc->sim, FALSE);		cam_sim_free(sc->sim, FALSE);
cam_simq_free(sc->devq);		cam_simq_free(sc->devq);
mtx_unlock(&sc->sim_mtx);		mtx_unlock(&sc->sim_mtx);
goto fail;		goto fail;
}		}

mtx_unlock(&sc->sim_mtx);		mtx_unlock(&sc->sim_mtx);

		/* Force rescan */
		aw_mmc_cam_start_discovery(dev);
#else /* !MMCCAM */		#else /* !MMCCAM */
child = device_add_child(dev, "mmc", -1);		child = device_add_child(dev, "mmc", -1);
if (child == NULL) {		if (child == NULL) {
device_printf(dev, "attaching MMC bus failed!\n");		device_printf(dev, "attaching MMC bus failed!\n");
goto fail;		goto fail;
}		}
if (device_probe_and_attach(child) != 0) {		if (device_probe_and_attach(child) != 0) {
device_printf(dev, "attaching MMC child failed!\n");		device_printf(dev, "attaching MMC child failed!\n");
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