125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
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/*
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* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef _UFS_QCOM_ICE_H_
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#define _UFS_QCOM_ICE_H_
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#include <scsi/scsi_cmnd.h>
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#include "ufs-qcom.h"
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/*
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* UFS host controller ICE registers. There are n [0..31]
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* of each of these registers
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*/
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enum {
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REG_UFS_QCOM_ICE_CFG = 0x2200,
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REG_UFS_QCOM_ICE_CTRL_INFO_1_n = 0x2204,
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REG_UFS_QCOM_ICE_CTRL_INFO_2_n = 0x2208,
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REG_UFS_QCOM_ICE_CTRL_INFO_3_n = 0x220C,
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};
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#define NUM_QCOM_ICE_CTRL_INFO_n_REGS 32
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/* UFS QCOM ICE CTRL Info register offset */
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enum {
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OFFSET_UFS_QCOM_ICE_CTRL_INFO_BYPASS = 0,
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OFFSET_UFS_QCOM_ICE_CTRL_INFO_KEY_INDEX = 0x1,
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OFFSET_UFS_QCOM_ICE_CTRL_INFO_CDU = 0x6,
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};
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/* UFS QCOM ICE CTRL Info register masks */
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enum {
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MASK_UFS_QCOM_ICE_CTRL_INFO_BYPASS = 0x1,
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MASK_UFS_QCOM_ICE_CTRL_INFO_KEY_INDEX = 0x1F,
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MASK_UFS_QCOM_ICE_CTRL_INFO_CDU = 0x8,
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};
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/* UFS QCOM ICE encryption/decryption bypass state */
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enum {
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UFS_QCOM_ICE_DISABLE_BYPASS = 0,
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UFS_QCOM_ICE_ENABLE_BYPASS = 1,
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};
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/* UFS QCOM ICE Crypto Data Unit of target DUN of Transfer Request */
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enum {
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UFS_QCOM_ICE_TR_DATA_UNIT_512_B = 0,
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UFS_QCOM_ICE_TR_DATA_UNIT_1_KB = 1,
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UFS_QCOM_ICE_TR_DATA_UNIT_2_KB = 2,
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UFS_QCOM_ICE_TR_DATA_UNIT_4_KB = 3,
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UFS_QCOM_ICE_TR_DATA_UNIT_8_KB = 4,
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UFS_QCOM_ICE_TR_DATA_UNIT_16_KB = 5,
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UFS_QCOM_ICE_TR_DATA_UNIT_32_KB = 6,
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};
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/* UFS QCOM ICE internal state */
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enum {
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UFS_QCOM_ICE_STATE_DISABLED = 0,
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UFS_QCOM_ICE_STATE_ACTIVE = 1,
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UFS_QCOM_ICE_STATE_SUSPENDED = 2,
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};
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#ifdef CONFIG_SCSI_UFS_QCOM_ICE
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int ufs_qcom_ice_get_dev(struct ufs_qcom_host *qcom_host);
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int ufs_qcom_ice_init(struct ufs_qcom_host *qcom_host);
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int ufs_qcom_ice_req_setup(struct ufs_qcom_host *qcom_host,
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struct scsi_cmnd *cmd, u8 *cc_index, bool *enable);
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int ufs_qcom_ice_cfg(struct ufs_qcom_host *qcom_host, struct scsi_cmnd *cmd);
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int ufs_qcom_ice_reset(struct ufs_qcom_host *qcom_host);
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int ufs_qcom_ice_resume(struct ufs_qcom_host *qcom_host);
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int ufs_qcom_ice_suspend(struct ufs_qcom_host *qcom_host);
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int ufs_qcom_ice_get_status(struct ufs_qcom_host *qcom_host, int *ice_status);
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void ufs_qcom_ice_print_regs(struct ufs_qcom_host *qcom_host);
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#else
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inline int ufs_qcom_ice_get_dev(struct ufs_qcom_host *qcom_host)
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{
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if (qcom_host) {
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qcom_host->ice.pdev = NULL;
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qcom_host->ice.vops = NULL;
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}
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return -ENODEV;
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}
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inline int ufs_qcom_ice_init(struct ufs_qcom_host *qcom_host)
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{
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return 0;
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}
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inline int ufs_qcom_ice_cfg(struct ufs_qcom_host *qcom_host,
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struct scsi_cmnd *cmd)
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{
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return 0;
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}
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inline int ufs_qcom_ice_reset(struct ufs_qcom_host *qcom_host)
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{
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return 0;
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}
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inline int ufs_qcom_ice_resume(struct ufs_qcom_host *qcom_host)
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{
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return 0;
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}
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inline int ufs_qcom_ice_suspend(struct ufs_qcom_host *qcom_host)
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{
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return 0;
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}
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inline int ufs_qcom_ice_get_status(struct ufs_qcom_host *qcom_host,
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int *ice_status)
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{
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return 0;
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}
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inline void ufs_qcom_ice_print_regs(struct ufs_qcom_host *qcom_host)
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{
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return;
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}
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#endif /* CONFIG_SCSI_UFS_QCOM_ICE */
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#endif /* UFS_QCOM_ICE_H_ */
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