[DM/FEATURE] Support SCSI bus (#9592)

* [DM/FEATURE] Support block for SCSI
1. Support SD and CD-ROM.
2. SD will port to UFS and ATA device.

Signed-off-by: GuEe-GUI <2991707448@qq.com>
This commit is contained in:
GUI 2024-11-22 16:59:37 +08:00 committed by GitHub
parent c055261177
commit 42a41c696d
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
13 changed files with 2296 additions and 2 deletions

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@ -162,6 +162,13 @@ endif
bool "Using devfs for device objects"
default y
if RT_USING_DFS_V1
config RT_USING_DFS_ISO9660
bool "Using ISO9660 filesystem"
depends on RT_USING_MEMHEAP
default n
endif
config RT_USING_DFS_ROMFS
bool "Enable ReadOnly file system on flash"
default n

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@ -0,0 +1,11 @@
# RT-Thread building script for component
from building import *
cwd = GetCurrentDir()
src = Glob('*.c')
CPPPATH = [cwd]
group = DefineGroup('Filesystem', src, depend = ['RT_USING_DFS', 'RT_USING_DFS_ISO9660'], CPPPATH = CPPPATH)
Return('group')

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@ -0,0 +1,697 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtservice.h>
#define DBG_TAG "dfs.iso9660"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#include "dfs_iso9660.h"
#include <dfs.h>
#include <dfs_fs.h>
#include <dfs_file.h>
#include <drivers/misc.h>
#include <drivers/byteorder.h>
#include <sys/time.h>
#define ISO9660_FSTYPE_DIR 0040000
#define ISO9660_FSTYPE_REG 0100000
#define ISO9660_FSTYPE_SYMLINK 0120000
#define ISO9660_FSTYPE_MASK 0170000
#define ISO9660_BLKSZ 2048
#define ISO9660_VOLDESC_BOOT 0
#define ISO9660_VOLDESC_PRIMARY 1
#define ISO9660_VOLDESC_SUPP 2
#define ISO9660_VOLDESC_PART 3
#define ISO9660_VOLDESC_END 255
rt_packed(struct iso9660_voldesc
{
rt_uint8_t type;
rt_uint8_t magic[5];
rt_uint8_t version;
});
rt_packed(struct iso9660_date2
{
rt_uint8_t year;
rt_uint8_t month;
rt_uint8_t day;
rt_uint8_t hour;
rt_uint8_t minute;
rt_uint8_t second;
rt_uint8_t offset;
});
/* Directory entry */
rt_packed(struct iso9660_dir
{
rt_uint8_t len;
rt_uint8_t ext_sectors;
rt_le32_t first_sector;
rt_le32_t first_sector_be;
rt_le32_t size;
rt_le32_t size_be;
struct iso9660_date2 mtime;
#define FLAG_TYPE_PLAIN 0
#define FLAG_TYPE_DIR 2
#define FLAG_TYPE 3
#define FLAG_MORE_EXTENTS 0x80
rt_uint8_t flags;
rt_uint8_t file_unit_size;
rt_uint8_t interleave_gap_size;
rt_le16_t vol_seq_num;
rt_le16_t vol_seq_num_be;
#define MAX_NAMELEN 255
rt_uint8_t namelen;
char name[0];
});
rt_packed(struct iso9660_date
{
rt_uint8_t year[4];
rt_uint8_t month[2];
rt_uint8_t day[2];
rt_uint8_t hour[2];
rt_uint8_t minute[2];
rt_uint8_t second[2];
rt_uint8_t hundredth[2];
rt_uint8_t offset;
});
/* Common volume descriptor */
rt_packed(struct iso9660_common_voldesc
{
struct iso9660_voldesc voldesc;
rt_uint8_t sysname[33];
rt_uint8_t volname[32];
rt_uint8_t unused2[8];
rt_le32_t vol_space_size_le;
rt_le32_t vol_space_size_be;
rt_uint8_t escape[32];
rt_le16_t vol_set_size_le;
rt_le16_t vol_set_size_be;
rt_le16_t vol_seq_num_le;
rt_le16_t vol_seq_num_be;
rt_le16_t logical_block_size_le;
rt_le16_t logical_block_size_be;
rt_le32_t path_table_size;
rt_le32_t path_table_size_be;
rt_le32_t path_table;
rt_le32_t path_table_be;
rt_uint8_t unused3[8];
struct iso9660_dir rootdir;
rt_uint8_t unused4[624];
struct iso9660_date created;
struct iso9660_date modified;
rt_uint8_t unused5[0 /* 1201 */];
};
struct iso9660
{
struct rt_device *dev;
rt_uint8_t joliet;
rt_uint8_t swap[ISO9660_BLKSZ];
struct iso9660_common_voldesc primary, supp;
};
struct iso9660_fd
{
struct iso9660 *iso;
struct iso9660_dir dirent;
};
struct iso9660_iterate
{
struct iso9660_fd *fd;
int i, index, count;
struct dirent *dirp;
};
static void iso9660_convert_string(char *dest, rt_uint16_t *src, int len)
{
/* UTF16 to ASCII */
len >>= 1;
for (int i = 0; i < len; ++i)
{
rt_uint16_t utf16 = rt_be16_to_cpu(*src++);
if (utf16 < 0x80)
{
*dest++ = (rt_uint8_t)utf16;
}
else
{
*dest++ = '?';
}
}
*dest = '\0';
}
static void iso9660_convert_lower(char *dest, rt_uint8_t *src, int len)
{
for (int i = 0; i < len; ++i, ++src)
{
if (*src >= 'A' && *src <= 'Z')
{
*dest++ = *src - ('A' - 'a');
}
else
{
*dest++ = *src;
}
}
*dest = '\0';
}
static time_t iso9660_convert_unixtime(struct iso9660_date *date)
{
struct tm tm;
tm.tm_sec = (date->second[0] - '0') * 10 + (date->second[1] - '0');
tm.tm_min = (date->minute[0] - '0') * 10 + (date->minute[1] - '0');
tm.tm_hour = (date->hour[0] - '0') * 10 + (date->hour[1] - '0');
tm.tm_mday = (date->day[0] - '0') * 10 + (date->day[1] - '0');
tm.tm_mon = (date->month[0] - '0') * 10 + (date->month[1] - '0');
tm.tm_year = (date->year[0] - '0') * 1000 + (date->year[1] - '0') * 100 +
(date->year[2] - '0') * 10 + (date->year[3] - '0');
tm.tm_wday = 0;
return mktime(&tm);
}
static time_t iso9660_convert_unixtime2(struct iso9660_date2 *date)
{
struct tm tm;
tm.tm_sec = date->second;
tm.tm_min = date->minute;
tm.tm_hour = date->hour;
tm.tm_mday = date->day;
tm.tm_mon = date->month;
tm.tm_year = date->year + 1900;
tm.tm_wday = 0;
return mktime(&tm);
}
static struct iso9660_fd *iso9660_lookup(struct iso9660 *iso, const char *path,
struct iso9660_iterate *it)
{
rt_uint32_t lba;
rt_size_t sz, len, namelen;
char sname[MAX_NAMELEN];
struct iso9660_fd *fd;
struct iso9660_dir *dirent;
if (it)
{
fd = it->fd;
iso = fd->iso;
dirent = &fd->dirent;
/* No next entry, always goon */
len = 1;
}
else
{
if (!(fd = rt_malloc(sizeof(*fd))))
{
return fd;
}
fd->iso = iso;
dirent = iso->joliet ? &iso->supp.rootdir : &iso->primary.rootdir;
if (!rt_strcmp(path, "/"))
{
rt_memcpy(&fd->dirent, dirent, sizeof(*dirent));
return fd;
}
/* Skip the first '/' */
++path;
len = rt_strchrnul(path, '/') - path;
}
lba = rt_le32_to_cpu(dirent->first_sector);
if (rt_device_read(iso->dev, lba, iso->swap, 1) <= 0)
{
goto _fail;
}
dirent = (void *)iso->swap;
sz = 0;
do {
/* Ignore "." and ".." */
do {
rt_uint32_t dlen = rt_le32_to_cpu(dirent->len);
dirent = (void *)dirent + dlen;
sz += dlen;
if (ISO9660_BLKSZ - sz < sizeof(*dirent))
{
/* Sector end, goto the next sector */
if (rt_device_read(iso->dev, ++lba, iso->swap, 1) <= 0)
{
goto _fail;
}
dirent = (void *)iso->swap;
sz = 0;
}
if (rt_le32_to_cpu(dirent->first_sector) == 0)
{
/* Is end, no found. */
goto _fail;
}
} while (dirent->name[0] >> 1 == 0 && rt_le32_to_cpu(dirent->namelen) == 1);
namelen = rt_le32_to_cpu(dirent->namelen);
if (iso->joliet)
{
iso9660_convert_string(sname, (rt_uint16_t *)dirent->name, namelen);
}
else
{
if (!(rt_le32_to_cpu(dirent->flags) & FLAG_TYPE_DIR))
{
/* Remove ";1" */
namelen -= 2;
}
iso9660_convert_lower(sname, (rt_uint8_t *)dirent->name, namelen);
}
if (it)
{
if (it->i < it->index)
{
goto _next;
}
if ((rt_le32_to_cpu(dirent->flags) & FLAG_TYPE) == FLAG_TYPE_DIR)
{
it->dirp->d_type = DT_DIR;
}
else
{
it->dirp->d_type = DT_REG;
}
it->dirp->d_namlen = namelen;
rt_strncpy(it->dirp->d_name, sname, namelen);
it->dirp->d_name[namelen] = '\0';
it->dirp->d_reclen = (rt_uint16_t)sizeof(struct dirent);
++it->dirp;
_next:
++it->i;
if (it->i - it->index >= it->count)
{
/* Iterate end */
return RT_NULL;
}
/* No next entry */
continue;
}
if (!rt_strncmp(sname, path, len))
{
/* The end of path, found ok */
if (!path[len])
{
rt_memcpy(&fd->dirent, dirent, sizeof(*dirent));
return fd;
}
/* Next entry */
lba = rt_le32_to_cpu(dirent->first_sector);
if (rt_device_read(iso->dev, lba, iso->swap, 1) <= 0)
{
goto _fail;
}
dirent = (void *)iso->swap;
sz = 0;
path += len + 1;
len = rt_strchrnul(path, '/') - path;
}
} while (len);
_fail:
if (!it)
{
rt_free(fd);
}
return RT_NULL;
}
static int dfs_iso9660_open(struct dfs_file *fd)
{
struct iso9660 *iso = fd->vnode->fs->data;
fd->vnode->data = iso9660_lookup(iso, fd->vnode->path, RT_NULL);
return fd->vnode->data ? 0 : -EINVAL;
}
static int dfs_iso9660_close(struct dfs_file *fd)
{
struct iso9660_fd *iso_fd = fd->vnode->data;
rt_free(iso_fd);
return 0;
}
static int dfs_iso9660_read(struct dfs_file *fd, void *buf, size_t count)
{
rt_uint32_t pos;
void *buf_ptr;
ssize_t read_blk, toread_blk;
size_t rcount = 0, remain, size;
struct iso9660_fd *iso_fd = fd->vnode->data;
struct iso9660 *iso = iso_fd->iso;
if (fd->pos + count > rt_le32_to_cpu(iso_fd->dirent.size))
{
count = rt_le32_to_cpu(iso_fd->dirent.size) - fd->pos;
}
pos = rt_le32_to_cpu(iso_fd->dirent.first_sector);
/* Align to a sector */
if (fd->pos)
{
pos += fd->pos / ISO9660_BLKSZ;
remain = fd->pos & (ISO9660_BLKSZ - 1);
if (rt_device_read(iso->dev, pos, iso->swap, 1) <= 0)
{
return -EIO;
}
size = rt_min_t(size_t, ISO9660_BLKSZ - remain, count);
rt_memcpy(buf, &iso->swap[remain], size);
rcount += size;
count -= size;
buf += size;
pos += 1;
fd->pos += size;
if (!count)
{
goto _end;
}
}
remain = count & (ISO9660_BLKSZ - 1);
count = rt_max_t(size_t, count / ISO9660_BLKSZ, 1);
while ((ssize_t)count > 0)
{
if (count == 1)
{
buf_ptr = iso->swap;
toread_blk = 1;
}
else
{
buf_ptr = buf;
toread_blk = count;
}
read_blk = rt_device_read(iso->dev, pos, buf_ptr, toread_blk);
if (read_blk <= 0)
{
return (int)read_blk;
}
if (count == 1)
{
size = remain;
rt_memcpy(buf, iso->swap, size);
}
else
{
size = read_blk * ISO9660_BLKSZ;
}
rcount += size;
count -= read_blk;
buf += size;
pos += read_blk;
fd->pos += size;
}
_end:
return rcount;
}
static int dfs_iso9660_lseek(struct dfs_file *fd, off_t offset)
{
int ret = -EIO;
if (offset <= fd->vnode->size)
{
fd->pos = offset;
ret = fd->pos;
}
return ret;
}
static int dfs_iso9660_getdents(struct dfs_file *fd, struct dirent *dirp, uint32_t count)
{
struct iso9660_iterate it;
struct iso9660_fd *iso_fd = fd->vnode->data;
count = (count / sizeof(struct dirent));
if (!count)
{
return -EINVAL;
}
it.fd = iso_fd;
it.i = 0;
it.index = fd->pos;
it.count = count;
it.dirp = dirp;
iso9660_lookup(RT_NULL, RT_NULL, &it);
count = it.i - it.index;
if (count > 0)
{
fd->pos += count;
}
count *= sizeof(struct dirent);
return count;
}
static const struct dfs_file_ops _iso9660_fops =
{
.open = dfs_iso9660_open,
.close = dfs_iso9660_close,
.read = dfs_iso9660_read,
.lseek = dfs_iso9660_lseek,
.getdents = dfs_iso9660_getdents,
};
static int dfs_iso9660_mount(struct dfs_filesystem *fs,
unsigned long rwflag, const void *data)
{
int err;
struct iso9660 *iso;
struct iso9660_voldesc *voldesc;
struct rt_device_blk_geometry geometry;
if (!(iso = rt_malloc(sizeof(*iso))))
{
return -RT_ENOMEM;
}
iso->dev = fs->dev_id;
rt_device_control(iso->dev, RT_DEVICE_CTRL_BLK_GETGEOME, &geometry);
if (geometry.bytes_per_sector != ISO9660_BLKSZ)
{
LOG_E("%s: Logical block size = %d is not supported",
iso->dev->parent.name, geometry.bytes_per_sector);
err = -EINVAL;
goto _fail;
}
iso->primary.rootdir.first_sector = 0;
iso->supp.rootdir.first_sector = 0;
/* LBA 0-15 is the bootloader's information */
for (int lba = 16; ; ++lba)
{
if (rt_device_read(iso->dev, lba, &iso->swap, 1) <= 0)
{
err = -EIO;
goto _fail;
}
voldesc = (void *)iso->swap;
if (rt_strncmp((char *)voldesc->magic, "CD001", 5))
{
LOG_E("%s: Invalid magic \"%s\"", voldesc->magic);
err = -EINVAL;
goto _fail;
}
if (voldesc->type == ISO9660_VOLDESC_BOOT)
{
LOG_D("System Name: %s", ((struct iso9660_common_voldesc *)voldesc)->sysname);
LOG_D("Volume Name: %s", ((struct iso9660_common_voldesc *)voldesc)->volname);
}
else if (voldesc->type == ISO9660_VOLDESC_PRIMARY)
{
iso->joliet = 0;
rt_memcpy(&iso->primary, &iso->swap, sizeof(iso->primary));
}
else if (voldesc->type == ISO9660_VOLDESC_SUPP)
{
rt_memcpy(&iso->supp, &iso->swap, sizeof(iso->supp));
if (iso->supp.escape[0] == 0x25 && iso->supp.escape[1] == 0x2f)
{
if (iso->supp.escape[2] == 0x40)
{
iso->joliet = 1;
}
else if (iso->supp.escape[2] == 0x43)
{
iso->joliet = 2;
}
else if (iso->supp.escape[2] == 0x45)
{
iso->joliet = 3;
}
else
{
continue;
}
}
}
else if (voldesc->type == ISO9660_VOLDESC_PART)
{
LOG_D("System Name: %s", ((struct iso9660_common_voldesc *)voldesc)->sysname);
LOG_D("Volume Name: %s", ((struct iso9660_common_voldesc *)voldesc)->volname);
}
else if (voldesc->type == ISO9660_VOLDESC_END)
{
break;
}
}
if (!iso->primary.rootdir.first_sector || !iso->supp.rootdir.first_sector)
{
LOG_E("No primary or secondary partition found");
err = -EINVAL;
goto _fail;
}
fs->data = iso;
return 0;
_fail:
rt_free(iso);
return err;
}
static int dfs_iso9660_unmount(struct dfs_filesystem *fs)
{
struct iso9660 *iso = fs->data;
rt_free(iso);
return 0;
}
static int dfs_iso9660_stat(struct dfs_filesystem *fs,
const char *filename, struct stat *st)
{
struct iso9660 *iso = fs->data;
struct iso9660_fd *fd = iso9660_lookup(iso, filename, RT_NULL);
if (!fd)
{
return -EINVAL;
}
st->st_dev = 0;
st->st_mode = S_IFREG | S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
if ((fd->dirent.flags & FLAG_TYPE) == FLAG_TYPE_DIR)
{
st->st_mode &= ~S_IFREG;
st->st_mode |= S_IFDIR | S_IXUSR | S_IXGRP | S_IXOTH;
}
st->st_atime = iso9660_convert_unixtime(iso->joliet ?
&iso->supp.created : &iso->primary.created);
st->st_mtime = iso9660_convert_unixtime2(&fd->dirent.mtime);
st->st_size = rt_le32_to_cpu(fd->dirent.size);
rt_free(fd);
return 0;
}
static const struct dfs_filesystem_ops _iso9660 =
{
.name = "iso9660",
.flags = DFS_FS_FLAG_DEFAULT,
.fops = &_iso9660_fops,
.mount = dfs_iso9660_mount,
.unmount = dfs_iso9660_unmount,
.stat = dfs_iso9660_stat,
};
int dfs_iso9660_init(void)
{
/* register iso9660 file system */
return dfs_register(&_iso9660);
}
INIT_COMPONENT_EXPORT(dfs_iso9660_init);

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@ -0,0 +1,16 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __DFS_ISO9660_H__
#define __DFS_ISO9660_H__
int dfs_iso9660_init(void);
#endif /* __DFS_ISO9660_H__ */

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@ -322,8 +322,8 @@ int dfs_mount(const char *device_name,
/* open device, but do not check the status of device */
if (dev_id != NULL)
{
if (rt_device_open(fs->dev_id,
RT_DEVICE_OFLAG_RDWR) != RT_EOK)
if (rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDWR) != RT_EOK &&
rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDONLY) != RT_EOK)
{
/* The underlying device has error, clear the entry. */
dfs_lock();

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@ -22,6 +22,7 @@ rsource "graphic/Kconfig"
rsource "hwcrypto/Kconfig"
rsource "wlan/Kconfig"
rsource "block/Kconfig"
rsource "scsi/Kconfig"
rsource "virtio/Kconfig"
rsource "dma/Kconfig"
rsource "mfd/Kconfig"

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@ -0,0 +1,461 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __SCSI_H__
#define __SCSI_H__
#include <rthw.h>
#include <rtthread.h>
#include <drivers/byteorder.h>
#define RT_SCSI_LUN_SHIFT 5
rt_packed(struct rt_scsi_unknow
{
rt_uint8_t opcode;
});
rt_packed(struct rt_scsi_test_unit_ready
{
rt_uint8_t opcode;
rt_uint8_t reserved[4];
rt_uint8_t control;
rt_uint8_t pad[6]; /* To be ATAPI compatible */
});
rt_packed(struct rt_scsi_inquiry
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-2 Reserved, 1 Obsolete Formerly CMDDT, 0 EVPD */
rt_uint8_t page; /* Page code if EVPD=1 */
rt_uint8_t reserved;
rt_uint8_t alloc_length;
rt_uint8_t control;
rt_uint8_t pad[6]; /* To be ATAPI compatible */
});
rt_packed(struct rt_scsi_inquiry_data
{
#define RT_SCSI_DEVTYPE_MASK 31
rt_uint8_t devtype;
#define RT_SCSI_REMOVABLE_BIT 7
rt_uint8_t rmb;
rt_uint8_t reserved[2];
rt_uint8_t length;
rt_uint8_t reserved1[3];
char vendor[8];
char prodid[16];
char prodrev[4];
});
rt_packed(struct rt_scsi_request_sense
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-2 Reserved, 1 Obsolete, 0 SP */
rt_uint8_t reserved[2];
rt_uint8_t alloc_length;
rt_uint8_t control;
rt_uint8_t pad[6]; /* To be ATAPI compatible */
});
rt_packed(struct rt_scsi_request_sense_data
{
rt_uint8_t error_code; /* 7 Valid, 6-0 Err. code */
rt_uint8_t segment_number;
rt_uint8_t sense_key; /* 7 FileMark, 6 EndOfMedia, 5 ILI, 4-0 sense key */
rt_be32_t information;
rt_uint8_t additional_sense_length;
rt_be32_t cmd_specific_info;
rt_uint8_t additional_sense_code;
rt_uint8_t additional_sense_code_qualifier;
rt_uint8_t field_replaceable_unit_code;
rt_uint8_t sense_key_specific[3];
});
rt_packed(struct rt_scsi_read_capacity10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-1 Reserved, 0 Obsolete */
rt_be32_t logical_block_addr; /* only if PMI=1 */
rt_uint8_t reserved[2];
rt_uint8_t pmi;
rt_uint8_t control;
rt_be16_t pad; /* To be ATAPI compatible */
});
rt_packed(struct rt_scsi_read_capacity10_data
{
rt_be32_t last_block;
rt_be32_t block_size;
});
rt_packed(struct rt_scsi_read_capacity16
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 Reserved, 4-0 SERVICE ACTION 0x10 */
rt_be64_t logical_block_addr; /* only if PMI=1 */
rt_be32_t alloc_len;
rt_uint8_t pmi;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_read_capacity16_data
{
rt_be64_t last_block;
rt_be32_t block_size;
rt_uint8_t pad[20];
});
rt_packed(struct rt_scsi_read10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 RDPROTECT, 4 DPO, 3 FUA, 2 RARC, 1 Obsolete, 0 Obsolete */
rt_be32_t lba;
rt_uint8_t reserved;
rt_be16_t size;
rt_uint8_t reserved2;
rt_be16_t pad;
});
rt_packed(struct rt_scsi_read12
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 RDPROTECT, 4 DPO, 3 FUA, 2 RARC, 1 Obsolete, 0 Obsolete */
rt_be32_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_read16
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 RDPROTECT, 4 DPO, 3 FUA, 2 RARC, 1 Obsolete, 0 DLD2 */
rt_be64_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_write10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 WRPROTECT, 4 DPO, 3 FUA, 2 Reserved, 1 Obsolete, 0 Obsolete */
rt_be32_t lba;
rt_uint8_t reserved;
rt_be16_t size;
rt_uint8_t reserved2;
rt_be16_t pad;
});
rt_packed(struct rt_scsi_write12
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 WRPROTECT, 4 DPO, 3 FUA, 2 Reserved, 1 Obsolete, 0 Obsolete */
rt_be32_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_write16
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 WRPROTECT, 4 DPO, 3 FUA, 2 Reserved, 1 Obsolete, 0 DLD2 */
rt_be64_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_synchronize_cache10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-3 Reserved, 2 Obsolete, 1 IMMED, 0 Obsolete */
rt_be32_t lba;
rt_uint8_t reserved;
rt_be16_t size;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_synchronize_cache16
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-3 Reserved, 2 Obsolete, 1 IMMED, 0 Obsolete */
rt_be64_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
#define RT_SCSI_UNMAP_SHIFT 3
rt_packed(struct rt_scsi_write_same10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 WRPROTECT, 4 ANCHOR, 3 UNMAP, 2 Obsolete, 1 Obsolete, 0 Obsolete */
rt_be32_t lba;
rt_uint8_t reserved;
rt_be16_t size;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_write_same16
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 WRPROTECT, 4 ANCHOR, 3 UNMAP, 2 Obsolete, 1 Obsolete, 0 NDOB */
rt_be64_t lba;
rt_be32_t size;
rt_uint8_t reserved;
rt_uint8_t control;
});
#define RT_SCSI_PF_SHIFT 4
#define RT_SCSI_RTD_SHIFT 1
#define RT_SCSI_SP_SHIFT 0
rt_packed(struct rt_scsi_mode_select6
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 Reserved, 4 PF, 3-2 Reserved, 1 RTD, 0 SP */
rt_uint8_t reserved[2];
rt_uint8_t param_list_len;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_mode_select10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 Reserved, 4 PF, 3-1 Reserved, 0 SP */
rt_uint8_t reserved[5];
rt_be16_t param_list_len;
rt_uint8_t control;
});
struct rt_scsi_mode_select_data
{
rt_uint32_t length;
rt_uint16_t block_descriptor_length;
rt_uint8_t medium_type;
rt_uint8_t device_specific;
rt_uint8_t header_length;
rt_uint8_t longlba:1;
};
#define RT_SCSI_DBD_SHIFT 3
#define RT_SCSI_LLBAA_SHIFT 4
#define RT_SCSI_PC_SHIFT 6
#define RT_SCSI_PAGE_CODE_SHIFT 0
rt_packed(struct rt_scsi_mode_sense6
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-4 Reserved, 3 DBD, 2-0 Reserved */
rt_uint8_t page_control_code;
rt_uint8_t subpage_code;
rt_uint8_t allocation_len;
rt_uint8_t control;
});
rt_packed(struct rt_scsi_mode_sense10
{
rt_uint8_t opcode;
rt_uint8_t config; /* 7-5 Reserved, 4 LLBAA, 3 DBD, 2-0 Reserved */
rt_uint8_t page_control_code;
rt_uint8_t subpage_code;
rt_uint8_t reserved[3];
rt_be16_t allocation_len;
rt_uint8_t control;
});
#define RT_SCSI_CMD_TEST_UNIT_READY 0x00
#define RT_SCSI_CMD_REQUEST_SENSE 0x03
#define RT_SCSI_CMD_INQUIRY 0x12
#define RT_SCSI_CMD_MODE_SELECT 0x15
#define RT_SCSI_CMD_MODE_SENSE 0x1a
#define RT_SCSI_CMD_READ_CAPACITY10 0x25
#define RT_SCSI_CMD_READ10 0x28
#define RT_SCSI_CMD_WRITE10 0x2a
#define RT_SCSI_CMD_SYNCHRONIZE_CACHE10 0x35
#define RT_SCSI_CMD_WRITE_SAME10 0x41
#define RT_SCSI_CMD_MODE_SELECT10 0x55
#define RT_SCSI_CMD_MODE_SENSE10 0x5a
#define RT_SCSI_CMD_READ16 0x88
#define RT_SCSI_CMD_WRITE16 0x8a
#define RT_SCSI_CMD_SYNCHRONIZE_CACHE16 0x91
#define RT_SCSI_CMD_WRITE_SAME16 0x93
#define RT_SCSI_CMD_READ_CAPACITY16 0x9e
#define RT_SCSI_CMD_READ12 0xa8
#define RT_SCSI_CMD_WRITE12 0xaa
struct rt_scsi_cmd
{
union
{
struct rt_scsi_unknow unknow;
struct rt_scsi_test_unit_ready test_unit_ready;
struct rt_scsi_inquiry inquiry;
struct rt_scsi_request_sense request_sense;
struct rt_scsi_read_capacity10 read_capacity10;
struct rt_scsi_read_capacity16 read_capacity16;
struct rt_scsi_read10 read10;
struct rt_scsi_read12 read12;
struct rt_scsi_read16 read16;
struct rt_scsi_write10 write10;
struct rt_scsi_write12 write12;
struct rt_scsi_write16 write16;
struct rt_scsi_synchronize_cache10 synchronize_cache10;
struct rt_scsi_synchronize_cache16 synchronize_cache16;
struct rt_scsi_write_same10 write_same10;
struct rt_scsi_write_same16 write_same16;
struct rt_scsi_mode_select6 mode_select6;
struct rt_scsi_mode_select10 mode_select10;
struct rt_scsi_mode_sense6 mode_sense6;
struct rt_scsi_mode_sense10 mode_sense10;
} op;
rt_size_t op_size;
union
{
struct
{
struct rt_scsi_inquiry_data inquiry;
struct rt_scsi_request_sense_data request_sense;
struct rt_scsi_read_capacity10_data read_capacity10;
struct rt_scsi_read_capacity16_data read_capacity16;
};
struct
{
void *ptr;
rt_size_t size;
};
} data;
};
enum
{
SCSI_DEVICE_TYPE_DIRECT = 0x00, /* DiskPeripheral (GenDisk) */
SCSI_DEVICE_TYPE_SEQUENTIAL = 0x01, /* TapePeripheral */
SCSI_DEVICE_TYPE_PRINTER = 0x02, /* PrinterPeripheral (GenPrinter) */
SCSI_DEVICE_TYPE_PROCESSOR = 0x03, /* OtherPeripheral */
SCSI_DEVICE_TYPE_WRITE_ONCE_READ_MULTIPLE = 0x04, /* WormPeripheral (GenWorm) */
SCSI_DEVICE_TYPE_CDROM = 0x05, /* CdRomPeripheral (GenCdRom) */
SCSI_DEVICE_TYPE_SCANNER = 0x06, /* ScannerPeripheral (GenScanner) */
SCSI_DEVICE_TYPE_OPTICAL = 0x07, /* OpticalDiskPeripheral (GenOptical) */
SCSI_DEVICE_TYPE_MEDIUM_CHANGER = 0x08, /* MediumChangerPeripheral (ScsiChanger) */
SCSI_DEVICE_TYPE_COMMUNICATION = 0x09, /* CommunicationsPeripheral (ScsiNet) */
SCSI_DEVICE_TYPE_ASC_PREPRESS_GRAPHICS10 = 0x0a, /* ASCPrePressGraphicsPeripheral (ScsiASCIT8) */
SCSI_DEVICE_TYPE_ASC_PREPRESS_GRAPHICS11 = 0x0b, /* ASCPrePressGraphicsPeripheral (ScsiASCIT8) */
SCSI_DEVICE_TYPE_ARRAY = 0x0c, /* ArrayPeripheral (ScsiArray) */
SCSI_DEVICE_TYPE_ENCLOSURE = 0x0d, /* EnclosurePeripheral (ScsiEnclosure) */
SCSI_DEVICE_TYPE_RBC = 0x0e, /* RBCPeripheral (ScsiRBC) */
SCSI_DEVICE_TYPE_CARDREADER = 0x0f, /* CardReaderPeripheral (ScsiCardReader) */
SCSI_DEVICE_TYPE_BRIDGE = 0x10, /* BridgePeripheral (ScsiBridge) */
SCSI_DEVICE_TYPE_OTHER = 0x11, /* OtherPeripheral (ScsiOther) */
SCSI_DEVICE_TYPE_MAX,
};
struct rt_scsi_ops;
struct rt_scsi_host
{
struct rt_device *dev;
const struct rt_scsi_ops *ops;
rt_size_t max_id;
rt_size_t max_lun;
rt_list_t lun_nodes;
};
struct rt_scsi_device
{
struct rt_scsi_host *host;
rt_list_t list;
rt_size_t id;
rt_size_t lun;
rt_uint32_t devtype;
rt_uint32_t removable;
rt_size_t last_block;
rt_size_t block_size;
void *priv;
};
struct rt_scsi_ops
{
rt_err_t (*reset)(struct rt_scsi_device *sdev);
rt_err_t (*transfer)(struct rt_scsi_device *sdev, struct rt_scsi_cmd *cmd);
};
rt_err_t rt_scsi_host_register(struct rt_scsi_host *scsi);
rt_err_t rt_scsi_host_unregister(struct rt_scsi_host *scsi);
rt_inline rt_bool_t rt_scsi_cmd_is_write(struct rt_scsi_cmd *cmd)
{
return cmd->op.write10.opcode == RT_SCSI_CMD_WRITE10 ||
cmd->op.write12.opcode == RT_SCSI_CMD_WRITE16 ||
cmd->op.write16.opcode == RT_SCSI_CMD_WRITE12;
}
rt_err_t rt_scsi_request_sense(struct rt_scsi_device *sdev,
struct rt_scsi_request_sense_data *out_data);
rt_err_t rt_scsi_test_unit_ready(struct rt_scsi_device *sdev);
rt_err_t rt_scsi_inquiry(struct rt_scsi_device *sdev,
struct rt_scsi_inquiry_data *out_data);
rt_err_t rt_scsi_read_capacity10(struct rt_scsi_device *sdev,
struct rt_scsi_read_capacity10_data *out_data);
rt_err_t rt_scsi_read_capacity16(struct rt_scsi_device *sdev,
struct rt_scsi_read_capacity16_data *out_data);
rt_err_t rt_scsi_read10(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size);
rt_err_t rt_scsi_read12(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size);
rt_err_t rt_scsi_read16(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size);
rt_err_t rt_scsi_write10(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size);
rt_err_t rt_scsi_write12(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size);
rt_err_t rt_scsi_write16(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size);
rt_err_t rt_scsi_synchronize_cache10(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size);
rt_err_t rt_scsi_synchronize_cache16(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size);
rt_err_t rt_scsi_write_same10(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size);
rt_err_t rt_scsi_write_same16(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size);
rt_err_t rt_scsi_mode_select6(struct rt_scsi_device *sdev,
rt_uint8_t pf, rt_uint8_t sp, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data);
rt_err_t rt_scsi_mode_select10(struct rt_scsi_device *sdev,
rt_uint8_t pf, rt_uint8_t sp, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data);
rt_err_t rt_scsi_mode_sense6(struct rt_scsi_device *sdev,
rt_uint8_t dbd, rt_uint8_t modepage, rt_uint8_t subpage, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data);
rt_err_t rt_scsi_mode_sense10(struct rt_scsi_device *sdev,
rt_uint8_t dbd, rt_uint8_t modepage, rt_uint8_t subpage, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data);
#endif /* __SCSI_H__ */

View File

@ -67,6 +67,10 @@ extern "C" {
#include "drivers/pic.h"
#endif
#ifdef RT_USING_SCSI
#include "drivers/scsi.h"
#endif
#ifdef RT_MFD_SYSCON
#include "drivers/syscon.h"
#endif

View File

@ -0,0 +1,20 @@
menuconfig RT_USING_SCSI
bool "Using Small Computer System Interface (SCSI)"
depends on RT_USING_DM
default n
config RT_SCSI_SD
bool "SD device on SCSI"
depends on RT_USING_SCSI
depends on RT_USING_BLK
default y
config RT_SCSI_CDROM
bool "CD-ROM device on SCSI"
depends on RT_USING_SCSI
depends on RT_USING_BLK
default y
if RT_USING_SCSI
osource "$(SOC_DM_SCSI_DIR)/Kconfig"
endif

View File

@ -0,0 +1,21 @@
from building import *
group = []
if not GetDepend(['RT_USING_SCSI']):
Return('group')
cwd = GetCurrentDir()
CPPPATH = [cwd + '/../include']
src = ['scsi.c']
if GetDepend(['RT_SCSI_SD']):
src += ['scsi_sd.c']
if GetDepend(['RT_SCSI_CDROM']):
src += ['scsi_cdrom.c']
group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
Return('group')

View File

@ -0,0 +1,669 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#define DBG_TAG "rtdm.scsi"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
/*
* Since SCSI is used for storage (almost),
* we do not want to implement SCSI as a system DM bus.
*/
struct scsi_driver
{
rt_err_t (*probe)(struct rt_scsi_device *sdev);
rt_err_t (*remove)(struct rt_scsi_device *sdev);
};
extern rt_err_t scsi_sd_probe(struct rt_scsi_device *sdev);
extern rt_err_t scsi_sd_remove(struct rt_scsi_device *sdev);
extern rt_err_t scsi_cdrom_probe(struct rt_scsi_device *sdev);
extern rt_err_t scsi_cdrom_remove(struct rt_scsi_device *sdev);
static struct scsi_driver driver_table[SCSI_DEVICE_TYPE_MAX] =
{
#ifdef RT_SCSI_SD
[SCSI_DEVICE_TYPE_DIRECT] =
{
.probe = scsi_sd_probe,
.remove = scsi_sd_remove,
},
#endif /* RT_SCSI_SD */
#ifdef RT_SCSI_CDROM
[SCSI_DEVICE_TYPE_CDROM] =
{
.probe = scsi_cdrom_probe,
.remove = scsi_cdrom_remove,
},
#endif /* RT_SCSI_CDROM */
};
static rt_err_t scsi_device_setup(struct rt_scsi_device *sdev)
{
rt_err_t err;
rt_tick_t timeout;
if (sdev->host->ops->reset)
{
if ((err = sdev->host->ops->reset(sdev)))
{
return err;
}
}
if (!driver_table[sdev->devtype].probe)
{
LOG_E("Device type %x is not supported", sdev->devtype);
return -RT_ENOSYS;
}
timeout = rt_tick_from_millisecond(5000);
timeout += rt_tick_get();
while ((err = rt_scsi_test_unit_ready(sdev)))
{
if (rt_tick_get() >= timeout)
{
return -RT_ETIMEOUT;
}
}
return driver_table[sdev->devtype].probe(sdev);
}
rt_err_t rt_scsi_host_register(struct rt_scsi_host *scsi)
{
struct rt_scsi_device tmp_sdev, *sdev;
if (!scsi || !scsi->dev || !scsi->ops)
{
return -RT_EINVAL;
}
if (!scsi->max_id || !scsi->max_lun)
{
return -RT_EINVAL;
}
rt_list_init(&scsi->lun_nodes);
rt_memset(&tmp_sdev, 0, sizeof(tmp_sdev));
tmp_sdev.host = scsi;
for (rt_size_t id = 0; id < scsi->max_id; ++id)
{
for (rt_size_t lun = 0; lun < scsi->max_lun; ++lun)
{
tmp_sdev.id = id;
tmp_sdev.lun = lun;
if (rt_scsi_inquiry(&tmp_sdev, RT_NULL))
{
continue;
}
if (tmp_sdev.devtype >= SCSI_DEVICE_TYPE_MAX)
{
/*
* This might seem odd, but we're only aiming to
* support simple SCSI.
* If devices appear on the bus out of order,
* we won't perform additional scans.
*/
scsi->max_id = id;
scsi->max_lun = lun;
LOG_D("Scan is end of ID: %u LUN: %u", id, lun);
break;
}
if (!(sdev = rt_malloc(sizeof(*sdev))))
{
if (!rt_list_isempty(&scsi->lun_nodes))
{
LOG_E("No memory to create device ID: %u, LUN: %u", id, lun);
return RT_EOK;
}
return -RT_ENOMEM;
}
rt_memcpy(sdev, &tmp_sdev, sizeof(*sdev));
rt_list_init(&sdev->list);
if (scsi_device_setup(sdev))
{
rt_free(sdev);
continue;
}
rt_list_insert_before(&scsi->lun_nodes, &sdev->list);
}
}
return rt_list_isempty(&scsi->lun_nodes) ? -RT_EEMPTY : RT_EOK;
}
rt_err_t rt_scsi_host_unregister(struct rt_scsi_host *scsi)
{
struct rt_scsi_device *sdev, *next_sdev;
if (!scsi)
{
return -RT_EINVAL;
}
rt_list_for_each_entry_safe(sdev, next_sdev, &scsi->lun_nodes, list)
{
rt_list_remove(&sdev->list);
if (sdev->host->ops->reset)
{
sdev->host->ops->reset(sdev);
}
if (!driver_table[sdev->devtype].remove)
{
driver_table[sdev->devtype].remove(sdev);
}
rt_free(sdev);
}
return RT_EOK;
}
rt_inline rt_err_t scsi_transfer(struct rt_scsi_device *sdev, struct rt_scsi_cmd *cmd)
{
return sdev->host->ops->transfer(sdev, cmd);
}
rt_err_t rt_scsi_request_sense(struct rt_scsi_device *sdev,
struct rt_scsi_request_sense_data *out_data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.request_sense.opcode = RT_SCSI_CMD_REQUEST_SENSE;
cmd.op.request_sense.config = 0;
cmd.op.request_sense.alloc_length = 0x12;
cmd.op.request_sense.control = 0;
cmd.op_size = sizeof(cmd.op.request_sense);
cmd.data.ptr = &cmd.data.request_sense;
cmd.data.size = sizeof(cmd.data.request_sense);
err = scsi_transfer(sdev, &cmd);
if (!err && out_data)
{
rt_memcpy(out_data, &cmd.data.request_sense, sizeof(*out_data));
}
return err;
}
rt_err_t rt_scsi_test_unit_ready(struct rt_scsi_device *sdev)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.test_unit_ready.opcode = RT_SCSI_CMD_TEST_UNIT_READY;
cmd.op.test_unit_ready.control = 0;
cmd.op_size = sizeof(cmd.op.test_unit_ready);
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_inquiry(struct rt_scsi_device *sdev,
struct rt_scsi_inquiry_data *out_data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.inquiry.opcode = RT_SCSI_CMD_INQUIRY;
cmd.op.inquiry.config = 0;
cmd.op.inquiry.page = 0;
cmd.op.inquiry.alloc_length = 0x24;
cmd.op.inquiry.control = 0;
cmd.op_size = sizeof(cmd.op.inquiry);
cmd.data.ptr = &cmd.data.inquiry;
cmd.data.size = sizeof(cmd.data.inquiry);
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
if (!err)
{
sdev->devtype = cmd.data.inquiry.devtype & RT_SCSI_DEVTYPE_MASK;
sdev->removable = cmd.data.inquiry.rmb >> RT_SCSI_REMOVABLE_BIT;
if (out_data)
{
rt_memcpy(out_data, &cmd.data.inquiry, sizeof(*out_data));
}
}
return err;
}
rt_err_t rt_scsi_read_capacity10(struct rt_scsi_device *sdev,
struct rt_scsi_read_capacity10_data *out_data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.read_capacity10.opcode = RT_SCSI_CMD_READ_CAPACITY10;
cmd.op.read_capacity10.config = 0;
cmd.op.read_capacity10.logical_block_addr = 0;
cmd.op.read_capacity10.pmi = 0;
cmd.op.read_capacity10.control = 0;
cmd.op_size = sizeof(cmd.op.read_capacity10);
cmd.data.ptr = &cmd.data.read_capacity10;
cmd.data.size = sizeof(cmd.data.read_capacity10);
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
if (!err)
{
sdev->last_block = rt_be32_to_cpu(cmd.data.read_capacity10.last_block);
sdev->block_size = rt_be32_to_cpu(cmd.data.read_capacity10.block_size);
if (out_data)
{
rt_memcpy(out_data, &cmd.data.read_capacity10, sizeof(*out_data));
}
}
return err;
}
rt_err_t rt_scsi_read_capacity16(struct rt_scsi_device *sdev,
struct rt_scsi_read_capacity16_data *out_data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.read_capacity16.opcode = RT_SCSI_CMD_READ_CAPACITY16;
cmd.op.read_capacity16.config = 0x10;
cmd.op.read_capacity16.logical_block_addr = 0;
cmd.op.read_capacity16.alloc_len = rt_cpu_to_be32(sizeof(cmd.data.read_capacity16));
cmd.op.read_capacity16.pmi = 0;
cmd.op.read_capacity16.control = 0;
cmd.op_size = sizeof(cmd.op.read_capacity16);
cmd.data.ptr = &cmd.data.read_capacity16;
cmd.data.size = sizeof(cmd.data.read_capacity16);
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
if (!err)
{
sdev->last_block = rt_be64_to_cpu(cmd.data.read_capacity16.last_block);
sdev->block_size = rt_be32_to_cpu(cmd.data.read_capacity16.block_size);
if (out_data)
{
rt_memcpy(out_data, &cmd.data.read_capacity16, sizeof(*out_data));
}
}
return err;
}
rt_err_t rt_scsi_read10(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.read10.opcode = RT_SCSI_CMD_READ10;
cmd.op.read10.config = 0;
cmd.op.read10.lba = rt_cpu_to_be32(lba);
cmd.op.read10.size = rt_cpu_to_be16(size);
cmd.op_size = sizeof(cmd.op.read10);
cmd.data.ptr = buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_read12(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.read12.opcode = RT_SCSI_CMD_READ12;
cmd.op.read12.config = 0;
cmd.op.read12.lba = rt_cpu_to_be32(lba);
cmd.op.read12.size = rt_cpu_to_be32(size);
cmd.op.read12.control = 0;
cmd.op_size = sizeof(cmd.op.read12);
cmd.data.ptr = buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_read16(struct rt_scsi_device *sdev,
rt_off_t lba, void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.read16.opcode = RT_SCSI_CMD_READ16;
cmd.op.read16.config = 0;
cmd.op.read16.lba = rt_cpu_to_be64(lba);
cmd.op.read16.size = rt_cpu_to_be32(size);
cmd.op.read16.control = 0;
cmd.op_size = sizeof(cmd.op.read16);
cmd.data.ptr = buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_write10(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.write10.opcode = RT_SCSI_CMD_WRITE10;
cmd.op.write10.config = 0;
cmd.op.write10.lba = rt_cpu_to_be32(lba);
cmd.op.write10.size = rt_cpu_to_be16(size);
cmd.op_size = sizeof(cmd.op.write10);
cmd.data.ptr = (void *)buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_write12(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.write12.opcode = RT_SCSI_CMD_WRITE12;
cmd.op.write12.config = 0;
cmd.op.write12.lba = rt_cpu_to_be32(lba);
cmd.op.write12.size = rt_cpu_to_be32(size);
cmd.op.write12.control = 0;
cmd.op_size = sizeof(cmd.op.write12);
cmd.data.ptr = (void *)buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_write16(struct rt_scsi_device *sdev,
rt_off_t lba, const void *buffer, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.write16.opcode = RT_SCSI_CMD_WRITE16;
cmd.op.write16.config = 0;
cmd.op.write16.lba = rt_cpu_to_be64(lba);
cmd.op.write16.size = rt_cpu_to_be32(size);
cmd.op.write16.control = 0;
cmd.op_size = sizeof(cmd.op.write16);
cmd.data.ptr = (void *)buffer;
cmd.data.size = size * sdev->block_size;
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_synchronize_cache10(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.synchronize_cache10.opcode = RT_SCSI_CMD_SYNCHRONIZE_CACHE10;
cmd.op.synchronize_cache10.config = 0;
cmd.op.synchronize_cache10.lba = rt_cpu_to_be32(lba);
cmd.op.synchronize_cache10.size = rt_cpu_to_be16(size);
cmd.op.synchronize_cache10.control = 0;
cmd.op_size = sizeof(cmd.op.synchronize_cache10);
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_synchronize_cache16(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.synchronize_cache16.opcode = RT_SCSI_CMD_SYNCHRONIZE_CACHE16;
cmd.op.synchronize_cache16.config = 0;
cmd.op.synchronize_cache16.lba = rt_cpu_to_be64(lba);
cmd.op.synchronize_cache16.size = rt_cpu_to_be32(size);
cmd.op.synchronize_cache16.control = 0;
cmd.op_size = sizeof(cmd.op.synchronize_cache16);
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_write_same10(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.write_same10.opcode = RT_SCSI_CMD_WRITE_SAME10;
cmd.op.write_same10.config = RT_BIT(RT_SCSI_UNMAP_SHIFT);
cmd.op.write_same10.lba = rt_cpu_to_be32(lba);
cmd.op.write_same10.size = rt_cpu_to_be16(size);
cmd.op.write_same10.control = 0;
cmd.op_size = sizeof(cmd.op.write_same10);
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_write_same16(struct rt_scsi_device *sdev,
rt_off_t lba, rt_size_t size)
{
struct rt_scsi_cmd cmd;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.write_same16.opcode = RT_SCSI_CMD_WRITE_SAME16;
cmd.op.write_same16.config = RT_BIT(RT_SCSI_UNMAP_SHIFT);
cmd.op.write_same16.lba = rt_cpu_to_be64(lba);
cmd.op.write_same16.size = rt_cpu_to_be32(size);
cmd.op.write_same16.control = 0;
cmd.op_size = sizeof(cmd.op.write_same16);
return scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
}
rt_err_t rt_scsi_mode_select6(struct rt_scsi_device *sdev,
rt_uint8_t pf, rt_uint8_t sp, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data)
{
rt_err_t err;
rt_uint8_t *real_buffer;
struct rt_scsi_cmd cmd;
real_buffer = rt_malloc(4 + size);
if (!real_buffer)
{
return -RT_ENOMEM;
}
rt_memcpy(real_buffer + 4, buffer, size);
size += 4;
real_buffer[0] = 0;
real_buffer[1] = data->medium_type;
real_buffer[2] = data->device_specific;
real_buffer[3] = data->block_descriptor_length;
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.mode_select6.opcode = RT_SCSI_CMD_MODE_SELECT;
cmd.op.mode_select6.config = pf ? RT_BIT(RT_SCSI_PF_SHIFT) : 0;
cmd.op.mode_select6.config |= sp ? RT_BIT(RT_SCSI_SP_SHIFT) : 0;
cmd.op.mode_select6.param_list_len = (rt_uint8_t)size;
cmd.op.mode_select6.control = 0;
cmd.op_size = sizeof(cmd.op.mode_select6);
cmd.data.ptr = real_buffer;
cmd.data.size = size;
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
rt_free(real_buffer);
return err;
}
rt_err_t rt_scsi_mode_select10(struct rt_scsi_device *sdev,
rt_uint8_t pf, rt_uint8_t sp, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data)
{
rt_err_t err;
rt_uint8_t *real_buffer;
struct rt_scsi_cmd cmd;
real_buffer = rt_malloc(8 + size);
if (!real_buffer)
{
return -RT_ENOMEM;
}
rt_memcpy(real_buffer + 8, buffer, size);
size += 8;
real_buffer[0] = 0;
real_buffer[1] = 0;
real_buffer[2] = data->medium_type;
real_buffer[3] = data->device_specific;
real_buffer[4] = data->longlba ? 0x01 : 0;
real_buffer[5] = 0;
real_buffer[6] = rt_cpu_to_be16(data->block_descriptor_length);
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.mode_select10.opcode = RT_SCSI_CMD_MODE_SELECT10;
cmd.op.mode_select10.config = pf ? RT_BIT(RT_SCSI_PF_SHIFT) : 0;
cmd.op.mode_select10.config |= sp ? RT_BIT(RT_SCSI_SP_SHIFT) : 0;
cmd.op.mode_select10.param_list_len = rt_cpu_to_be16(size);
cmd.op.mode_select10.control = 0;
cmd.op_size = sizeof(cmd.op.mode_select10);
cmd.data.ptr = real_buffer;
cmd.data.size = size;
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
rt_free(real_buffer);
return err;
}
static void scsi_mode_sense_fill(struct rt_scsi_mode_select_data *data,
rt_uint8_t modepage, rt_uint8_t *buffer, rt_bool_t use10)
{
if (buffer[0] == 0x86 && buffer[1] == 0x0b && (modepage == 6 || modepage == 8))
{
data->header_length = 0;
data->length = 13;
data->medium_type = 0;
data->device_specific = 0;
data->longlba = 0;
data->block_descriptor_length = 0;
}
else if (use10)
{
data->length = rt_be16_to_cpu(buffer[0]) + 2;
data->medium_type = buffer[2];
data->device_specific = buffer[3];
data->longlba = buffer[4] & 0x01;
data->block_descriptor_length = rt_be16_to_cpu(buffer[6]);
}
else
{
data->length = buffer[0] + 1;
data->medium_type = buffer[1];
data->device_specific = buffer[2];
data->block_descriptor_length = buffer[3];
}
}
rt_err_t rt_scsi_mode_sense6(struct rt_scsi_device *sdev,
rt_uint8_t dbd, rt_uint8_t modepage, rt_uint8_t subpage, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(buffer, 0, size);
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.mode_sense6.opcode = RT_SCSI_CMD_MODE_SENSE;
cmd.op.mode_sense6.config = dbd & 0x18;
cmd.op.mode_sense6.page_control_code = modepage;
cmd.op.mode_sense6.subpage_code = subpage;
cmd.op.mode_sense6.allocation_len = (rt_uint8_t)size;
cmd.op.mode_sense6.control = 0;
cmd.op_size = sizeof(cmd.op.mode_sense6);
cmd.data.ptr = buffer;
cmd.data.size = size;
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
if (!err)
{
data->header_length = 4;
scsi_mode_sense_fill(data, modepage, buffer, RT_FALSE);
}
return err;
}
rt_err_t rt_scsi_mode_sense10(struct rt_scsi_device *sdev,
rt_uint8_t dbd, rt_uint8_t modepage, rt_uint8_t subpage, void *buffer, rt_size_t size,
struct rt_scsi_mode_select_data *data)
{
rt_err_t err;
struct rt_scsi_cmd cmd;
rt_memset(buffer, 0, size);
rt_memset(&cmd, 0, sizeof(cmd));
cmd.op.mode_sense6.opcode = RT_SCSI_CMD_MODE_SENSE10;
cmd.op.mode_sense6.config = dbd & 0x18;
cmd.op.mode_sense6.page_control_code = modepage;
cmd.op.mode_sense6.subpage_code = subpage;
cmd.op.mode_sense6.allocation_len = rt_cpu_to_be16(size);
cmd.op.mode_sense6.control = 0;
cmd.op_size = sizeof(cmd.op.mode_sense6);
cmd.data.ptr = buffer;
cmd.data.size = size;
err = scsi_transfer(sdev, &cmd) ? : rt_scsi_request_sense(sdev, RT_NULL);
if (!err)
{
data->header_length = 8;
scsi_mode_sense_fill(data, modepage, buffer, RT_FALSE);
}
return err;
}

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@ -0,0 +1,136 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#define DBG_TAG "scsi.blk"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
struct scsi_cdrom
{
struct rt_blk_disk parent;
struct rt_scsi_device *sdev;
int cdrom_id;
struct rt_device_blk_geometry geometry;
};
#define raw_to_scsi_cdrom(raw) rt_container_of(raw, struct scsi_cdrom, parent)
static struct rt_dm_ida cdrom_ida = RT_DM_IDA_INIT(CUSTOM);
static struct rt_dm_ida scsi_cdrom_ida = RT_DM_IDA_INIT(SCSI_CDROM);
static rt_ssize_t scsi_cdrom_read(struct rt_blk_disk *disk, rt_off_t sector,
void *buffer, rt_size_t sector_count)
{
rt_err_t err;
struct scsi_cdrom *scdrom = raw_to_scsi_cdrom(disk);
struct rt_scsi_device *sdev = scdrom->sdev;
sector_count &= RT_UINT32_MAX;
if (sector >> 32)
{
err = rt_scsi_read16(sdev, sector, buffer, sector_count);
}
else
{
err = rt_scsi_read12(sdev, sector, buffer, sector_count);
}
return !err ? sector_count : (rt_ssize_t)err;
}
static rt_err_t scsi_cdrom_getgeome(struct rt_blk_disk *disk,
struct rt_device_blk_geometry *geometry)
{
struct scsi_cdrom *scdrom = raw_to_scsi_cdrom(disk);
rt_memcpy(geometry, &scdrom->geometry, sizeof(scdrom->geometry));
return RT_EOK;
}
static const struct rt_blk_disk_ops scsi_cdrom_ops =
{
.read = scsi_cdrom_read,
.getgeome = scsi_cdrom_getgeome,
};
rt_err_t scsi_cdrom_probe(struct rt_scsi_device *sdev)
{
rt_err_t err;
union
{
struct rt_scsi_read_capacity10_data capacity10;
struct rt_scsi_read_capacity16_data capacity16;
} data;
struct scsi_cdrom *scdrom = rt_calloc(1, sizeof(*scdrom));
if (!scdrom)
{
return -RT_ENOMEM;
}
if ((scdrom->cdrom_id = rt_dm_ida_alloc(&cdrom_ida)) < 0)
{
return -RT_EFULL;
}
sdev->priv = scdrom;
scdrom->sdev = sdev;
scdrom->parent.ida = &scsi_cdrom_ida;
scdrom->parent.read_only = RT_TRUE;
scdrom->parent.parallel_io = RT_FALSE;
scdrom->parent.ops = &scsi_cdrom_ops;
scdrom->parent.max_partitions = RT_BLK_PARTITION_NONE;
if ((err = rt_scsi_read_capacity10(sdev, &data.capacity10)))
{
goto _fail;
}
if (data.capacity10.last_block == 0xffffffff)
{
if ((err = rt_scsi_read_capacity16(sdev, &data.capacity16)))
{
goto _fail;
}
}
scdrom->geometry.bytes_per_sector = sdev->block_size;
scdrom->geometry.block_size = sdev->block_size;
scdrom->geometry.sector_count = sdev->last_block + 1;
rt_dm_dev_set_name(&scdrom->parent.parent, "cdrom%u", scdrom->cdrom_id);
if ((err = rt_hw_blk_disk_register(&scdrom->parent)))
{
goto _fail;
}
return RT_EOK;
_fail:
rt_dm_ida_free(&cdrom_ida, scdrom->cdrom_id);
rt_free(scdrom);
return err;
}
rt_err_t scsi_cdrom_remove(struct rt_scsi_device *sdev)
{
struct scsi_cdrom *scdrom = sdev->priv;
rt_dm_ida_free(&cdrom_ida, scdrom->cdrom_id);
return rt_hw_blk_disk_unregister(&scdrom->parent);
}

View File

@ -0,0 +1,251 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#define DBG_TAG "scsi.blk"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#include "../block/blk_dev.h"
struct scsi_sd
{
struct rt_blk_disk parent;
struct rt_scsi_device *sdev;
int sd_id;
rt_bool_t use16;
struct rt_device_blk_geometry geometry;
};
#define raw_to_scsi_sd(raw) rt_container_of(raw, struct scsi_sd, parent)
static struct rt_dm_ida sd_ida = RT_DM_IDA_INIT(CUSTOM);
static struct rt_dm_ida scsi_sd_ida = RT_DM_IDA_INIT(SCSI_SD);
static rt_ssize_t scsi_sd_read(struct rt_blk_disk *disk, rt_off_t sector,
void *buffer, rt_size_t sector_count)
{
rt_err_t err;
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
struct rt_scsi_device *sdev = ssd->sdev;
sector_count &= RT_UINT32_MAX;
if (sector >> 32)
{
err = rt_scsi_read16(sdev, sector, buffer, sector_count);
}
else
{
err = rt_scsi_read10(sdev, sector, buffer, sector_count);
}
return !err ? sector_count : (rt_ssize_t)err;
}
static rt_ssize_t scsi_sd_write(struct rt_blk_disk *disk, rt_off_t sector,
const void *buffer, rt_size_t sector_count)
{
rt_err_t err;
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
struct rt_scsi_device *sdev = ssd->sdev;
sector_count &= RT_UINT32_MAX;
if (sector >> 32)
{
err = rt_scsi_write16(sdev, sector, buffer, sector_count);
}
else
{
err = rt_scsi_write10(sdev, sector, buffer, sector_count);
}
return !err ? sector_count : (rt_ssize_t)err;
}
static rt_err_t scsi_sd_getgeome(struct rt_blk_disk *disk,
struct rt_device_blk_geometry *geometry)
{
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
rt_memcpy(geometry, &ssd->geometry, sizeof(ssd->geometry));
return RT_EOK;
}
static rt_err_t scsi_sd_sync(struct rt_blk_disk *disk)
{
rt_err_t err;
rt_size_t lba_count;
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
struct rt_scsi_device *sdev = ssd->sdev;
lba_count = ssd->geometry.sector_count;
if (ssd->use16)
{
err = rt_scsi_synchronize_cache16(sdev, 0, lba_count);
}
else
{
err = rt_scsi_synchronize_cache10(sdev, 0, lba_count);
}
return err;
}
static rt_err_t scsi_sd_erase(struct rt_blk_disk *disk)
{
rt_err_t err;
rt_size_t lba_count;
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
struct rt_scsi_device *sdev = ssd->sdev;
lba_count = ssd->geometry.sector_count;
if (ssd->use16)
{
err = rt_scsi_write_same16(sdev, 0, lba_count);
}
else
{
err = rt_scsi_write_same10(sdev, 0, lba_count);
}
return err;
}
static rt_err_t scsi_sd_autorefresh(struct rt_blk_disk *disk, rt_bool_t is_auto)
{
rt_err_t err;
int sp;
rt_size_t size;
rt_uint8_t buffer[64];
rt_uint8_t *buffer_data;
rt_bool_t use6 = RT_TRUE;
struct scsi_sd *ssd = raw_to_scsi_sd(disk);
struct rt_scsi_device *sdev = ssd->sdev;
struct rt_scsi_mode_select_data data;
err = rt_scsi_mode_sense6(sdev, 0x08, 8, 0, buffer, sizeof(buffer), &data);
if (err && err != -RT_ENOMEM)
{
use6 = RT_FALSE;
err = rt_scsi_mode_sense10(sdev, 0x08, 8, 0, buffer, sizeof(buffer), &data);
}
if (err)
{
return err;
}
size = rt_min_t(rt_size_t, sizeof(buffer),
data.length - data.header_length - data.block_descriptor_length);
buffer_data = buffer + data.header_length + data.block_descriptor_length;
buffer_data[2] &= ~0x05;
buffer_data[2] |= (!!is_auto) << 2 | (!!is_auto);
sp = buffer_data[0] & 0x80 ? 1 : 0;
buffer_data[0] &= ~0x80;
data.device_specific = 0;
if (use6)
{
err = rt_scsi_mode_select6(sdev, 1, sp, buffer_data, size, &data);
}
else
{
err = rt_scsi_mode_select10(sdev, 1, sp, buffer_data, size, &data);
}
return err;
}
static const struct rt_blk_disk_ops scsi_sd_ops =
{
.read = scsi_sd_read,
.write = scsi_sd_write,
.getgeome = scsi_sd_getgeome,
.sync = scsi_sd_sync,
.erase = scsi_sd_erase,
.autorefresh = scsi_sd_autorefresh,
};
rt_err_t scsi_sd_probe(struct rt_scsi_device *sdev)
{
rt_err_t err;
union
{
struct rt_scsi_read_capacity10_data capacity10;
struct rt_scsi_read_capacity16_data capacity16;
} data;
struct scsi_sd *ssd = rt_calloc(1, sizeof(*ssd));
if (!ssd)
{
return -RT_ENOMEM;
}
if ((ssd->sd_id = rt_dm_ida_alloc(&sd_ida)) < 0)
{
return -RT_EFULL;
}
sdev->priv = ssd;
ssd->sdev = sdev;
ssd->parent.ida = &scsi_sd_ida;
ssd->parent.parallel_io = RT_FALSE;
ssd->parent.ops = &scsi_sd_ops;
ssd->parent.max_partitions = RT_BLK_PARTITION_MAX;
if ((err = rt_scsi_read_capacity10(sdev, &data.capacity10)))
{
goto _fail;
}
if (data.capacity10.last_block == 0xffffffff)
{
if ((err = rt_scsi_read_capacity16(sdev, &data.capacity16)))
{
goto _fail;
}
ssd->use16 = RT_TRUE;
}
ssd->geometry.bytes_per_sector = sdev->block_size;
ssd->geometry.block_size = sdev->block_size;
ssd->geometry.sector_count = sdev->last_block + 1;
rt_dm_dev_set_name(&ssd->parent.parent, "sd%c%c", letter_name(ssd->sd_id));
if ((err = rt_hw_blk_disk_register(&ssd->parent)))
{
goto _fail;
}
return RT_EOK;
_fail:
rt_dm_ida_free(&sd_ida, ssd->sd_id);
rt_free(ssd);
return err;
}
rt_err_t scsi_sd_remove(struct rt_scsi_device *sdev)
{
struct scsi_sd *ssd = sdev->priv;
rt_dm_ida_free(&sd_ida, ssd->sd_id);
return rt_hw_blk_disk_unregister(&ssd->parent);
}