Differential D50370 Diff 156700 sys/dev/ufshci/ufshci.c

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sys/dev/ufshci/ufshci.c

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				/*-
				* Copyright (c) 2025, Samsung Electronics Co., Ltd.
				* Written by Jaeyoon Choi
				*
				* SPDX-License-Identifier: BSD-2-Clause
				*/

				#include <sys/param.h>
				#include <sys/bus.h>
				#include <sys/conf.h>
				#include <sys/module.h>

				#include "ufshci_private.h"

				MALLOC_DEFINE(M_UFSHCI, "ufshci", "ufshci(4) memory allocations");

				int
				ufshci_attach(device_t dev)
				{
				struct ufshci_controller *ctrlr = device_get_softc(dev);
				int status;

				status = ufshci_ctrlr_construct(ctrlr, dev);
				if (status != 0) {
				ufshci_ctrlr_destruct(ctrlr, dev);
				return (status);
				}

				ctrlr->config_hook.ich_func = ufshci_ctrlr_start_config_hook;
				ctrlr->config_hook.ich_arg = ctrlr;

				if (config_intrhook_establish(&ctrlr->config_hook) != 0)
				return (ENOMEM);

				return (0);
				}

				int
				ufshci_detach(device_t dev)
				{
				struct ufshci_controller *ctrlr = device_get_softc(dev);

				config_intrhook_drain(&ctrlr->config_hook);

				ufshci_ctrlr_destruct(ctrlr, dev);

				return (0);
				}

				void
				ufshci_completion_poll_cb(void arg, const struct ufshci_completion cpl,
				bool error)
				{
				struct ufshci_completion_poll_status *status = arg;

				/*
				* Copy status into the argument passed by the caller, so that the
				* caller can check the status to determine if the the request passed
				* or failed.
				*/
				memcpy(&status->cpl.response_upiu, &cpl->response_upiu, cpl->size);
				status->error = error;
				atomic_store_rel_int(&status->done, 1);
				}

				static int
				ufshci_modevent(module_t mod __unused, int type __unused, void *argp __unused)
				{
				return (0);
				}

				static moduledata_t ufshci_mod = { "ufshci", ufshci_modevent, 0 };

				DECLARE_MODULE(ufshci, ufshci_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
				MODULE_VERSION(ufshci, 1);
				MODULE_DEPEND(ufshci, cam, 1, 1, 1);