618 lines
18 KiB
C
618 lines
18 KiB
C
/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <debug.h>
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#include <string.h>
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#include <reg.h>
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#include <arch/defines.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <endian.h>
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#include <ufs.h>
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#include <dme.h>
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#include <uic.h>
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#include <utp.h>
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#include <ucs.h>
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#include <crc32.h>
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int dme_send_linkstartup_req(struct ufs_dev *dev)
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{
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struct uic_cmd cmd;
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cmd.uiccmd = UICCMDR_DME_LINKSTARTUP;
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cmd.num_args = UICCMD_NO_ARGS;
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cmd.timeout_msecs = DME_LINK_START_TIMEOUT;
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if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE)
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goto dme_send_linkstartup_req_err;
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return UFS_SUCCESS;
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dme_send_linkstartup_req_err:
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dprintf(CRITICAL, "%s:%d DME_LINKSTARTUP command failed.\n",__func__, __LINE__);
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return -UFS_FAILURE;
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}
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int dme_get_req(struct ufs_dev *dev, struct dme_get_req_type *req)
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{
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struct uic_cmd cmd;
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cmd.uiccmd = UICCMDR_DME_GET;
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cmd.num_args = UICCMD_ONE_ARGS;
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cmd.uiccmdarg1 = req->attribute << 16 | req->index;
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cmd.timeout_msecs = INFINITE_TIME;
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if (uic_send_cmd(dev, &cmd) || cmd.gen_err_code == UICCMD_FAILURE)
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goto dme_get_req_err;
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/* Return the result. */
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*(req->mibval) = cmd.uiccmdarg3;
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return UFS_SUCCESS;
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dme_get_req_err:
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dprintf(CRITICAL, "%s:%d DME_GET command failed.\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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static int dme_get_query_resp(struct ufs_dev *dev,
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struct upiu_req_build_type *req_upiu,
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addr_t buffer,
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size_t buf_len)
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{
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struct upiu_trans_mgmt_query_hdr *resp_upiu;
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resp_upiu = (struct upiu_trans_mgmt_query_hdr *) req_upiu->resp_ptr;
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if (resp_upiu->opcode != req_upiu->opcode)
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{
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dprintf(CRITICAL, "%s:%d Opcode from respose does not match with Opcode from request\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (resp_upiu->basic_hdr.response != UPIU_QUERY_RESP_SUCCESS)
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{
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dprintf(CRITICAL, "%s:%d UPIU Response is not SUCCESS, response code: 0x%x\n", __func__, __LINE__, resp_upiu->basic_hdr.response);
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return -UFS_FAILURE;
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}
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switch (resp_upiu->opcode)
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{
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case UPIU_QUERY_OP_READ_ATTRIBUTE:
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case UPIU_QUERY_OP_READ_FLAG:
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case UPIU_QUERY_OP_SET_FLAG:
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if (buf_len < sizeof(uint32_t))
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{
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dprintf(CRITICAL, "%s:%d Insufficient buffer space.\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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*((uint32_t *) buffer) = resp_upiu->resv_1[3]; //resv_1[3] contains the data for flag
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break;
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case UPIU_QUERY_OP_WRITE_ATTRIBUTE:
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case UPIU_QUERY_OP_TOGGLE_FLAG:
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case UPIU_QUERY_OP_CLEAR_FLAG:
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case UPIU_QUERY_OP_READ_DESCRIPTOR:
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break;
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default:
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dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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return UFS_SUCCESS;
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}
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static int dme_send_query_upiu(struct ufs_dev *dev, struct utp_query_req_upiu_type *query)
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{
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struct upiu_trans_mgmt_query_hdr resp_upiu;
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struct upiu_req_build_type req_upiu;
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int ret;
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memset(&req_upiu, 0, sizeof(req_upiu));
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req_upiu.opcode = query->opcode;
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req_upiu.selector = query->selector;
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req_upiu.index = query->index;
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req_upiu.idn = query->idn;
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req_upiu.trans_type = UPIU_TYPE_QUERY_REQ;
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req_upiu.dd = UTRD_NO_DATA_TRANSFER;
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req_upiu.resp_ptr = (struct upiu_basic_resp_hdr *) &resp_upiu;
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req_upiu.resp_len = sizeof(resp_upiu);
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req_upiu.resp_data_ptr = query->buf;
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req_upiu.timeout_msecs = UTP_GENERIC_CMD_TIMEOUT;
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if (query->opcode == UPIU_QUERY_OP_READ_DESCRIPTOR)
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{
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req_upiu.resp_data_len = query->buf_len;
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}
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if (query->opcode == UPIU_QUERY_OP_WRITE_ATTRIBUTE)
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req_upiu.data_buffer_addr = query->buf; // attribute is 4 byte value
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ret = utp_enqueue_upiu(dev, &req_upiu);
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if (ret)
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goto utp_send_query_upiu_err;
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ret = dme_get_query_resp(dev, &req_upiu, query->buf, query->buf_len);
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if (ret)
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goto utp_send_query_upiu_err;
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utp_send_query_upiu_err:
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return ret;
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}
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int dme_set_bbootlunen(struct ufs_dev *dev, uint32_t val)
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{
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int ret = 0;
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STACKBUF_DMA_ALIGN(value, sizeof(uint32_t));
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memset((void *)value, 0, sizeof(uint32_t));
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*value = val;
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struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_WRITE_ATTRIBUTE,
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UFS_IDX_bBootLunEn,
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0,
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0,
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(addr_t)value,
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sizeof(uint32_t)};
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if ((ret = dme_send_query_upiu(dev, &set_query)))
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{
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arch_invalidate_cache_range((addr_t) value, sizeof(uint32_t));
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dprintf(CRITICAL, "%s:%d DME Set Boot Lun Query failed. Value 0x%x\n", __func__, __LINE__, *value);
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return -UFS_FAILURE;
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}
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return UFS_SUCCESS;
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}
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int dme_get_bbootlunen(struct ufs_dev *dev)
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{
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STACKBUF_DMA_ALIGN(value, sizeof(uint32_t));
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memset((void *)value, 0, sizeof(uint32_t));
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int ret = 0;
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struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_READ_ATTRIBUTE,
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UFS_IDX_bBootLunEn,
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0,
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0,
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(addr_t)value,
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sizeof(uint32_t)};
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if ((ret = dme_send_query_upiu(dev, &set_query)))
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{
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dprintf(CRITICAL, "%s:%d DME Set Boot Lun Query failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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arch_invalidate_cache_range((addr_t) value, sizeof(uint32_t));
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return *value;
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}
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int dme_set_fpurgeenable(struct ufs_dev *dev)
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{
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STACKBUF_DMA_ALIGN(result, sizeof(uint32_t));
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STACKBUF_DMA_ALIGN(status, sizeof(uint32_t));
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uint32_t try_again = DME_BPURGESTATUS_RETRIES;
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struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG,
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UFS_IDX_fPurgeEn,
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0,
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0,
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(addr_t) result,
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sizeof(uint32_t)};
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struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_ATTRIBUTE,
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UFS_IDX_bPurgeStatus,
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0,
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0,
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(addr_t)status,
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sizeof(uint32_t)};
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if (dme_send_query_upiu(dev, &set_query))
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{
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dprintf(CRITICAL, "%s:%d DME Purge Enable failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t));
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dprintf(INFO, "%s:%d Purge enable status: %u\n", __func__,__LINE__, *result);
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do {
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*status = 0;
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arch_invalidate_cache_range((addr_t) status, sizeof(uint32_t));
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if (dme_send_query_upiu(dev, &read_query))
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{
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dprintf(CRITICAL, "%s:%d DME Purge Status Read failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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switch (*status)
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{
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case 0x0:
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#ifdef DEBUG_UFS
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dprintf(INFO, "%s:%d Purge operation returning to ufs_erase. Purge Status 0x0\n", __func__, __LINE__);
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#endif
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return UFS_SUCCESS;
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case 0x3:
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#ifdef DEBUG_UFS
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dprintf(INFO, "%s:%d Purge operation has completed. Purge Status:0x3\n", __func__, __LINE__);
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#endif
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// next read of status will move to 0
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continue;
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case 0x1:
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#ifdef DEBUG_UFS
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dprintf(INFO, "%s:%d Purge operation is still in progress.. Retrying\n", __func__, __LINE__);
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#endif
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try_again--;
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continue;
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case 0x2:
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dprintf(CRITICAL, "%s:%d Purge operation stopped prematurely\n", __func__, __LINE__);
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return -UFS_FAILURE;
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case 0x4:
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dprintf(CRITICAL, "%s:%d Purge operation failed due to logical unit queue not empty\n", __func__, __LINE__);
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return -UFS_FAILURE;
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case 0x5:
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dprintf(CRITICAL, "%s:%d Purge operation general failure\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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} while((*status == 0x1 || *status == 0x3) && try_again);
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// should not come here
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dprintf(CRITICAL, "%s:%d Purge operation timed out after checking status %d times\n", __func__, __LINE__, DME_BPURGESTATUS_RETRIES);
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return -UFS_FAILURE;
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}
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int dme_set_fpoweronwpen(struct ufs_dev *dev)
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{
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STACKBUF_DMA_ALIGN(result, sizeof(uint32_t));
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uint32_t try_again = DME_FPOWERONWPEN_RETRIES;
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struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG,
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UFS_IDX_fPowerOnWPEn,
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0,
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0,
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(addr_t) result,
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sizeof(uint32_t)};
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struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG,
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UFS_IDX_fPowerOnWPEn,
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0,
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0,
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(addr_t) result,
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sizeof(uint32_t)};
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if (dme_send_query_upiu(dev, &read_query))
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{
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dprintf(CRITICAL, "%s:%d DME Power On Write Read Request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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arch_invalidate_cache_range((addr_t) result, sizeof(uint32_t));
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if (*result == 1)
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goto utp_set_fpoweronwpen_done;
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do
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{
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try_again--;
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dprintf(CRITICAL, "Power on Write Protect request failed. Retrying again.\n");
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if (dme_send_query_upiu(dev, &set_query))
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{
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dprintf(CRITICAL, "%s:%d DME Power On Write Set Request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (dme_send_query_upiu(dev, &read_query))
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{
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dprintf(CRITICAL, "%s:%d DME Power On Write Read Request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (*result == 1)
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break;
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} while (try_again);
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utp_set_fpoweronwpen_done:
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dprintf(INFO,"Power on Write Protect status: %u\n", *result);
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return UFS_SUCCESS;
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}
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int dme_set_fdeviceinit(struct ufs_dev *dev)
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{
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uint32_t result;
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uint32_t try_again = DME_FDEVICEINIT_RETRIES;
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struct utp_query_req_upiu_type read_query = {UPIU_QUERY_OP_READ_FLAG,
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UFS_IDX_fDeviceInit,
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0,
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0,
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(addr_t) &result,
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sizeof(uint32_t)};
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struct utp_query_req_upiu_type set_query = {UPIU_QUERY_OP_SET_FLAG,
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UFS_IDX_fDeviceInit,
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0,
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0,
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(addr_t) &result,
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sizeof(uint32_t)};
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if (dme_send_query_upiu(dev, &read_query))
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{
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dprintf(CRITICAL, "%s:%d DME Device Init Read request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (result == 1)
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goto utp_set_fdeviceinit_done;
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do
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{
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try_again--;
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if (dme_send_query_upiu(dev, &set_query))
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{
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dprintf(CRITICAL, "%s:%d DME Device Init Set request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (dme_send_query_upiu(dev, &read_query))
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{
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dprintf(CRITICAL, "%s:%d DME Device Init Read request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (result == 1)
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break;
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} while (try_again);
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utp_set_fdeviceinit_done:
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return UFS_SUCCESS;
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}
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int dme_read_string_desc(struct ufs_dev *dev, uint8_t index, struct ufs_string_desc *desc)
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{
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struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR,
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UFS_DESC_IDN_STRING,
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index,
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0,
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(addr_t) desc,
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sizeof(struct ufs_string_desc)};
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if (dme_send_query_upiu(dev, &query))
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{
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dprintf(CRITICAL, "%s:%d DME Read String Descriptor request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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if (desc->desc_len != 0)
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return UFS_SUCCESS;
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dprintf(CRITICAL, "%s:%d DME Read String Descriptor is length 0\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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static uint32_t dme_parse_serial_no(struct ufs_string_desc *desc)
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{
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uint32_t serial_no=0;
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int len=0;
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if(desc->desc_len <= 0)
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{
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dprintf(CRITICAL, "%s:%d Invalid string descriptor length\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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len = (desc->desc_len-2)/2;
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serial_no = crc32(~0L, desc->serial_num, len);
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return serial_no;
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}
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int dme_read_device_desc(struct ufs_dev *dev)
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{
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struct ufs_dev_desc device_desc;
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struct ufs_string_desc str_desc;
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struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR,
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UFS_DESC_IDN_DEVICE,
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0,
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0,
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(addr_t) &device_desc,
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sizeof(struct ufs_dev_desc)};
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if (dme_send_query_upiu(dev, &query))
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{
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dprintf(CRITICAL, "%s:%d DME Read Device Descriptor request failed\n", __func__, __LINE__);
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return -UFS_FAILURE;
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}
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/* Store all relevant data */
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dev->num_lus = device_desc.num_lu;
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/* Get serial number for the device based on the string index. */
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if (dme_read_string_desc(dev, device_desc.serial_num, (struct ufs_string_desc *) &str_desc))
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return -UFS_FAILURE;
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dev->serial_num = dme_parse_serial_no(&str_desc);
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return UFS_SUCCESS;
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}
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int dme_read_geo_desc(struct ufs_dev *dev)
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{
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struct ufs_geometry_desc *desc;
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STACKBUF_DMA_ALIGN(geometry_desc, sizeof(struct ufs_geometry_desc));
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desc = (struct ufs_geometry_desc *) geometry_desc;
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struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR,
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UFS_DESC_IDN_GEOMETRY,
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0,
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0,
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(addr_t) geometry_desc,
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sizeof(struct ufs_geometry_desc)};
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if (dme_send_query_upiu(dev, &query))
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{
|
|
dprintf(CRITICAL, "%s:%d DME Read Geometry Descriptor request failed\n", __func__, __LINE__);
|
|
return -UFS_FAILURE;
|
|
}
|
|
|
|
dev->rpmb_rw_size = desc->rpmb_read_write_size;
|
|
return UFS_SUCCESS;
|
|
}
|
|
|
|
int dme_read_unit_desc(struct ufs_dev *dev, uint8_t index)
|
|
{
|
|
struct ufs_unit_desc unit_desc;
|
|
struct ufs_unit_desc *desc = (struct ufs_unit_desc *) &unit_desc;
|
|
struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR,
|
|
UFS_DESC_IDN_UNIT,
|
|
index,
|
|
0,
|
|
(addr_t) &unit_desc,
|
|
sizeof(struct ufs_unit_desc)};
|
|
|
|
if (dme_send_query_upiu(dev, &query))
|
|
{
|
|
dprintf(CRITICAL, "%s:%d DME Read Unit Descriptor request failed\n", __func__, __LINE__);
|
|
return -UFS_FAILURE;
|
|
}
|
|
|
|
dev->lun_cfg[index].logical_blk_cnt = BE64(desc->logical_blk_cnt);
|
|
|
|
dev->lun_cfg[index].erase_blk_size = BE32(desc->erase_blk_size);
|
|
|
|
// use only the lower 32 bits for rpmb partition size
|
|
if (index == UFS_WLUN_RPMB)
|
|
dev->rpmb_num_blocks = BE32(desc->logical_blk_cnt >> 32);
|
|
|
|
return UFS_SUCCESS;
|
|
}
|
|
|
|
int dme_read_config_desc(struct ufs_dev *dev)
|
|
{
|
|
STACKBUF_DMA_ALIGN(desc, sizeof(struct ufs_config_desc));
|
|
struct ufs_config_desc *config_desc = (struct ufs_config_desc *)desc;
|
|
struct utp_query_req_upiu_type query = {UPIU_QUERY_OP_READ_DESCRIPTOR,
|
|
UFS_DESC_IDN_CONFIGURATION,
|
|
0,
|
|
0,
|
|
(addr_t) config_desc,
|
|
sizeof(struct ufs_config_desc)};
|
|
|
|
if (dme_send_query_upiu(dev, &query))
|
|
{
|
|
dprintf(CRITICAL, "%s:%d DME Read Config Descriptor request failed\n", __func__, __LINE__);
|
|
return -UFS_FAILURE;
|
|
}
|
|
|
|
/* Flush buffer. */
|
|
arch_invalidate_cache_range((addr_t) config_desc, sizeof(struct ufs_config_desc));
|
|
|
|
return UFS_SUCCESS;
|
|
}
|
|
|
|
int dme_send_nop_query(struct ufs_dev *dev)
|
|
{
|
|
struct upiu_req_build_type req_upiu;
|
|
struct upiu_basic_resp_hdr resp_upiu;
|
|
int ret;
|
|
unsigned try_again;
|
|
|
|
ret = UFS_SUCCESS;
|
|
try_again = DME_NOP_NUM_RETRIES;
|
|
|
|
memset(&req_upiu, 0 , sizeof(struct upiu_req_build_type));
|
|
|
|
req_upiu.trans_type = UPIU_TYPE_NOP_OUT;
|
|
req_upiu.flags = 0;
|
|
req_upiu.query_mgmt_func = 0;
|
|
req_upiu.cmd_type = UTRD_DEV_MGMT_FUNC;
|
|
req_upiu.dd = UTRD_NO_DATA_TRANSFER;
|
|
req_upiu.resp_ptr = &resp_upiu;
|
|
req_upiu.resp_len = sizeof(struct upiu_basic_hdr);
|
|
req_upiu.timeout_msecs = DME_NOP_QUERY_TIMEOUT;
|
|
|
|
while (try_again)
|
|
{
|
|
try_again--;
|
|
|
|
ret = utp_enqueue_upiu(dev, &req_upiu);
|
|
|
|
if (ret == -UFS_RETRY)
|
|
{
|
|
continue;
|
|
}
|
|
else if (ret == -UFS_FAILURE)
|
|
{
|
|
dprintf(CRITICAL, "%s:%d Sending nop out failed.\n", __func__, __LINE__);
|
|
goto upiu_send_nop_out_err;
|
|
}
|
|
|
|
/* Check response UPIU */
|
|
if (resp_upiu.trans_type != UPIU_TYPE_NOP_IN)
|
|
{
|
|
dprintf(CRITICAL, "%s:%d Command failed. command = %x. Invalid response.\n",__func__,__LINE__, req_upiu.trans_type);
|
|
ret = -UFS_FAILURE;
|
|
goto upiu_send_nop_out_err;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
upiu_send_nop_out_err:
|
|
return ret;
|
|
}
|
|
|
|
int utp_build_query_req_upiu(struct upiu_trans_mgmt_query_hdr *req_upiu,
|
|
struct upiu_req_build_type *upiu_data)
|
|
{
|
|
req_upiu->opcode = upiu_data->opcode;
|
|
req_upiu->idn = upiu_data->idn;
|
|
req_upiu->index = upiu_data->index;
|
|
req_upiu->selector = upiu_data->selector;
|
|
req_upiu->resp_len = BE16(upiu_data->resp_data_len);
|
|
|
|
switch (upiu_data->opcode)
|
|
{
|
|
case UPIU_QUERY_OP_READ_FLAG:
|
|
case UPIU_QUERY_OP_READ_ATTRIBUTE:
|
|
case UPIU_QUERY_OP_READ_DESCRIPTOR:
|
|
req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_READ_REQ;
|
|
break;
|
|
case UPIU_QUERY_OP_TOGGLE_FLAG:
|
|
case UPIU_QUERY_OP_WRITE_ATTRIBUTE:
|
|
case UPIU_QUERY_OP_CLEAR_FLAG:
|
|
case UPIU_QUERY_OP_SET_FLAG:
|
|
req_upiu->basic_hdr.query_task_mgmt_func = UPIU_QUERY_FUNC_STD_WRITE_REQ;
|
|
break;
|
|
default:
|
|
dprintf(CRITICAL, "%s:%d UPIU query opcode not supported.\n", __func__, __LINE__);
|
|
return -UFS_FAILURE;
|
|
}
|
|
if (upiu_data->opcode == UPIU_QUERY_OP_WRITE_ATTRIBUTE)
|
|
{
|
|
req_upiu->resv_1[0] = (*(uint32_t *)(upiu_data->data_buffer_addr) >> 24);
|
|
req_upiu->resv_1[1] = (*(uint32_t *)(upiu_data->data_buffer_addr) >> 16);
|
|
req_upiu->resv_1[2] = (*(uint32_t *)(upiu_data->data_buffer_addr) >> 8);
|
|
req_upiu->resv_1[3] = (*(uint32_t *)(upiu_data->data_buffer_addr) & 0xFF);
|
|
}
|
|
|
|
return UFS_SUCCESS;
|
|
}
|