diff options
Diffstat (limited to 'gpt-utils/recovery-ufs-bsg.h')
-rw-r--r-- | gpt-utils/recovery-ufs-bsg.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/gpt-utils/recovery-ufs-bsg.h b/gpt-utils/recovery-ufs-bsg.h new file mode 100644 index 0000000..fafea5f --- /dev/null +++ b/gpt-utils/recovery-ufs-bsg.h @@ -0,0 +1,131 @@ +#ifndef __RECOVERY_UFS_BSG_H__ +#define __RECOVERY_UFS_BSG_H__ + +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include <linux/bsg.h> +#include <scsi/scsi_bsg_ufs.h> +#include <endian.h> +#include <dirent.h> +#include <string.h> + +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +#ifdef ANDROID +#include "cutils/log.h" +#endif + +#ifdef OE +#include <syslog.h> +#define LOGI(...) syslog(LOG_NOTICE, "INFO:" __VA_ARGS__) +#define LOGV(...) syslog(LOG_NOTICE,"VERB:" __VA_ARGS__) +#define LOGD(...) syslog(LOG_DEBUG,"DBG:" __VA_ARGS__) +#define LOGE(...) syslog(LOG_ERR,"ERR:" __VA_ARGS__) +#define LOGW(...) syslog(LOG_WARNING,"WRN:" __VA_ARGS__) +#define strlcat(d,s,l) snprintf(d+strlen(d),l,"%s",s) +#endif + + + +#define FNAME_SZ 64 + +#define SG_IO 0x2285 + +#define DWORD(b3, b2, b1, b0) htobe32((b3 << 24) | (b2 << 16) |\ + (b1 << 8) | b0) + +/* UFS BSG device nodes */ +char ufs_bsg_dev[FNAME_SZ] = "/dev/ufs-bsg"; + +int fd_ufs_bsg; + +int32_t set_ufs_lun(uint8_t lun_id); + +#ifdef _BSG_FRAMEWORK_KERNEL_HEADERS +/* UPIU Transaction Codes */ +enum { + UTP_UPIU_NOP_OUT = 0x00, + UTP_UPIU_COMMAND = 0x01, + UTP_UPIU_DATA_OUT = 0x02, + UTP_UPIU_TASK_REQ = 0x04, + UTP_UPIU_QUERY_REQ = 0x16, +}; + +/* UPIU Query Function field */ +enum { + QUERY_REQ_FUNC_STD_READ = 0x01, + QUERY_REQ_FUNC_STD_WRITE = 0x81, +}; + +enum query_req_opcode { + QUERY_REQ_OP_READ_DESC = 0x1, + QUERY_REQ_OP_WRITE_DESC = 0x2, + QUERY_REQ_OP_READ_ATTR = 0x3, + QUERY_REQ_OP_WRITE_ATTR = 0x4, + QUERY_REQ_OP_READ_FLAG = 0x5, + QUERY_REQ_OP_SET_FLAG = 0x6, + QUERY_REQ_OP_CLEAR_FLAG = 0x7, + QUERY_REQ_OP_TOGGLE_FLAG = 0x8, +}; + +enum query_desc_idn { + QUERY_DESC_IDN_DEVICE = 0x0, + QUERY_DESC_IDN_UNIT = 0x2, + QUERY_DESC_IDN_GEOMETRY = 0x7, +}; + +enum query_desc_size { + QUERY_DESC_SIZE_DEVICE = 0x40, + QUERY_DESC_SIZE_GEOMETRY = 0x48, + QUERY_DESC_SIZE_UNIT = 0x23, +}; + +enum bsg_ioctl_dir { + BSG_IOCTL_DIR_TO_DEV, + BSG_IOCTL_DIR_FROM_DEV, +}; + +enum query_attr_idn { + QUERY_ATTR_IDN_BOOT_LU_EN = 0x00, + QUERY_ATTR_IDN_RESERVED = 0x01, + QUERY_ATTR_IDN_POWER_MODE = 0x02, + QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03, +}; +#endif /* _BSG_FRAMEWORK_KERNEL_HEADERS */ + +#endif /* __RECOVERY_UFS_BSG_H__ */ |