+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Henrik Nordstrom <henrik@henriknordstrom.net>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <os.h>
#include <malloc.h>
#include <sandboxblockdev.h>
-#include <asm/errno.h>
+#include <asm/global_data.h>
+#include <dm/device_compat.h>
+#include <linux/errno.h>
#include <dm/device-internal.h>
DECLARE_GLOBAL_DATA_PTR;
+#ifndef CONFIG_BLK
+static struct host_block_dev host_devices[SANDBOX_HOST_MAX_DEVICES];
+
+static struct host_block_dev *find_host_device(int dev)
+{
+ if (dev >= 0 && dev < SANDBOX_HOST_MAX_DEVICES)
+ return &host_devices[dev];
+
+ return NULL;
+}
+#endif
+
+#ifdef CONFIG_BLK
static unsigned long host_block_read(struct udevice *dev,
unsigned long start, lbaint_t blkcnt,
void *buffer)
{
- struct host_block_dev *host_dev = dev_get_priv(dev);
- struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
+ struct host_block_dev *host_dev = dev_get_plat(dev);
+ struct blk_desc *block_dev = dev_get_uclass_plat(dev);
+
+#else
+static unsigned long host_block_read(struct blk_desc *block_dev,
+ unsigned long start, lbaint_t blkcnt,
+ void *buffer)
+{
+ int dev = block_dev->devnum;
+ struct host_block_dev *host_dev = find_host_device(dev);
+
+ if (!host_dev)
+ return -1;
+#endif
if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
-1) {
return -1;
}
+#ifdef CONFIG_BLK
static unsigned long host_block_write(struct udevice *dev,
unsigned long start, lbaint_t blkcnt,
const void *buffer)
{
- struct host_block_dev *host_dev = dev_get_priv(dev);
- struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
+ struct host_block_dev *host_dev = dev_get_plat(dev);
+ struct blk_desc *block_dev = dev_get_uclass_plat(dev);
+#else
+static unsigned long host_block_write(struct blk_desc *block_dev,
+ unsigned long start, lbaint_t blkcnt,
+ const void *buffer)
+{
+ int dev = block_dev->devnum;
+ struct host_block_dev *host_dev = find_host_device(dev);
+#endif
if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
-1) {
return -1;
}
-int host_dev_bind(int devnum, char *filename)
+#ifdef CONFIG_BLK
+int host_dev_bind(int devnum, char *filename, bool removable)
{
struct host_block_dev *host_dev;
struct udevice *dev;
+ struct blk_desc *desc;
char dev_name[20], *str, *fname;
int ret, fd;
/* Remove and unbind the old device, if any */
ret = blk_get_device(IF_TYPE_HOST, devnum, &dev);
if (ret == 0) {
- ret = device_remove(dev);
+ ret = device_remove(dev, DM_REMOVE_NORMAL);
if (ret)
return ret;
ret = device_unbind(dev);
}
ret = blk_create_device(gd->dm_root, "sandbox_host_blk", str,
IF_TYPE_HOST, devnum, 512,
- os_lseek(fd, 0, OS_SEEK_END), &dev);
+ os_lseek(fd, 0, OS_SEEK_END) / 512, &dev);
if (ret)
goto err_file;
+
+ host_dev = dev_get_plat(dev);
+ host_dev->fd = fd;
+ host_dev->filename = fname;
+
ret = device_probe(dev);
if (ret) {
device_unbind(dev);
goto err_file;
}
- host_dev = dev_get_priv(dev);
- host_dev->fd = fd;
- host_dev->filename = fname;
+ desc = blk_get_devnum_by_type(IF_TYPE_HOST, devnum);
+ desc->removable = removable;
+ snprintf(desc->vendor, BLK_VEN_SIZE, "U-Boot");
+ snprintf(desc->product, BLK_PRD_SIZE, "hostfile");
+ snprintf(desc->revision, BLK_REV_SIZE, "1.0");
- return blk_prepare_device(dev);
+ return 0;
err_file:
os_close(fd);
err:
free(str);
return ret;
}
+#else
+int host_dev_bind(int dev, char *filename, bool removable)
+{
+ struct host_block_dev *host_dev = find_host_device(dev);
+
+ if (!host_dev)
+ return -1;
+ if (host_dev->blk_dev.priv) {
+ os_close(host_dev->fd);
+ host_dev->blk_dev.priv = NULL;
+ }
+ if (host_dev->filename)
+ free(host_dev->filename);
+ if (filename && *filename) {
+ host_dev->filename = strdup(filename);
+ } else {
+ host_dev->filename = NULL;
+ return 0;
+ }
+
+ host_dev->fd = os_open(host_dev->filename, OS_O_RDWR);
+ if (host_dev->fd == -1) {
+ printf("Failed to access host backing file '%s'\n",
+ host_dev->filename);
+ return 1;
+ }
+
+ struct blk_desc *blk_dev = &host_dev->blk_dev;
+ blk_dev->if_type = IF_TYPE_HOST;
+ blk_dev->priv = host_dev;
+ blk_dev->blksz = 512;
+ blk_dev->lba = os_lseek(host_dev->fd, 0, OS_SEEK_END) / blk_dev->blksz;
+ blk_dev->block_read = host_block_read;
+ blk_dev->block_write = host_block_write;
+ blk_dev->devnum = dev;
+ blk_dev->part_type = PART_TYPE_UNKNOWN;
+ blk_dev->removable = removable;
+ snprintf(blk_dev->vendor, BLK_VEN_SIZE, "U-Boot");
+ snprintf(blk_dev->product, BLK_PRD_SIZE, "hostfile");
+ snprintf(blk_dev->revision, BLK_REV_SIZE, "1.0");
+ part_init(blk_dev);
+
+ return 0;
+}
+#endif
int host_get_dev_err(int devnum, struct blk_desc **blk_devp)
{
+#ifdef CONFIG_BLK
struct udevice *dev;
int ret;
ret = blk_get_device(IF_TYPE_HOST, devnum, &dev);
if (ret)
return ret;
- *blk_devp = dev_get_uclass_platdata(dev);
+ *blk_devp = dev_get_uclass_plat(dev);
+#else
+ struct host_block_dev *host_dev = find_host_device(devnum);
+
+ if (!host_dev)
+ return -ENODEV;
+
+ if (!host_dev->blk_dev.priv)
+ return -ENOENT;
+
+ *blk_devp = &host_dev->blk_dev;
+#endif
return 0;
}
-struct blk_desc *host_get_dev(int dev)
+#ifdef CONFIG_BLK
+
+int sandbox_host_unbind(struct udevice *dev)
{
- struct blk_desc *blk_dev;
+ struct host_block_dev *host_dev;
- if (host_get_dev_err(dev, &blk_dev))
- return NULL;
+ /* Data validity is checked in host_dev_bind() */
+ host_dev = dev_get_plat(dev);
+ os_close(host_dev->fd);
- return blk_dev;
+ return 0;
}
static const struct blk_ops sandbox_host_blk_ops = {
.name = "sandbox_host_blk",
.id = UCLASS_BLK,
.ops = &sandbox_host_blk_ops,
- .priv_auto_alloc_size = sizeof(struct host_block_dev),
+ .unbind = sandbox_host_unbind,
+ .plat_auto = sizeof(struct host_block_dev),
+};
+#else
+U_BOOT_LEGACY_BLK(sandbox_host) = {
+ .if_typename = "host",
+ .if_type = IF_TYPE_HOST,
+ .max_devs = SANDBOX_HOST_MAX_DEVICES,
+ .get_dev = host_get_dev_err,
};
+#endif
projects / platform / kernel / u-boot.git / blobdiff