+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Henrik Nordstrom <henrik@henriknordstrom.net>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
-#include <config.h>
#include <common.h>
+#include <blk.h>
+#include <dm.h>
+#include <fdtdec.h>
#include <part.h>
#include <os.h>
#include <malloc.h>
#include <sandboxblockdev.h>
-#include <asm/errno.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[CONFIG_HOST_MAX_DEVICES];
static struct host_block_dev *find_host_device(int 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_platdata(dev);
+ struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
-static unsigned long host_block_read(int dev, unsigned long start,
- lbaint_t blkcnt, void *buffer)
+#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;
- if (os_lseek(host_dev->fd,
- start * host_dev->blk_dev.blksz,
- OS_SEEK_SET) == -1) {
- printf("ERROR: Invalid position\n");
+#endif
+
+ if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
+ -1) {
+ printf("ERROR: Invalid block %lx\n", start);
return -1;
}
- ssize_t len = os_read(host_dev->fd, buffer,
- blkcnt * host_dev->blk_dev.blksz);
+ ssize_t len = os_read(host_dev->fd, buffer, blkcnt * block_dev->blksz);
if (len >= 0)
- return len / host_dev->blk_dev.blksz;
+ return len / block_dev->blksz;
return -1;
}
-static unsigned long host_block_write(int dev, unsigned long start,
- lbaint_t blkcnt, const void *buffer)
+#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_platdata(dev);
+ struct blk_desc *block_dev = dev_get_uclass_platdata(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);
- if (os_lseek(host_dev->fd,
- start * host_dev->blk_dev.blksz,
- OS_SEEK_SET) == -1) {
- printf("ERROR: Invalid position\n");
+#endif
+
+ if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
+ -1) {
+ printf("ERROR: Invalid block %lx\n", start);
return -1;
}
- ssize_t len = os_write(host_dev->fd, buffer, blkcnt *
- host_dev->blk_dev.blksz);
+ ssize_t len = os_write(host_dev->fd, buffer, blkcnt * block_dev->blksz);
if (len >= 0)
- return len / host_dev->blk_dev.blksz;
+ return len / block_dev->blksz;
return -1;
}
+#ifdef CONFIG_BLK
+int host_dev_bind(int devnum, char *filename)
+{
+ struct host_block_dev *host_dev;
+ struct udevice *dev;
+ 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, DM_REMOVE_NORMAL);
+ if (ret)
+ return ret;
+ ret = device_unbind(dev);
+ if (ret)
+ return ret;
+ } else if (ret != -ENODEV) {
+ return ret;
+ }
+
+ if (!filename)
+ return 0;
+
+ snprintf(dev_name, sizeof(dev_name), "host%d", devnum);
+ str = strdup(dev_name);
+ if (!str)
+ return -ENOMEM;
+ fname = strdup(filename);
+ if (!fname) {
+ free(str);
+ return -ENOMEM;
+ }
+
+ fd = os_open(filename, OS_O_RDWR);
+ if (fd == -1) {
+ printf("Failed to access host backing file '%s'\n", filename);
+ ret = -ENOENT;
+ goto err;
+ }
+ ret = blk_create_device(gd->dm_root, "sandbox_host_blk", str,
+ IF_TYPE_HOST, devnum, 512,
+ os_lseek(fd, 0, OS_SEEK_END) / 512, &dev);
+ if (ret)
+ goto err_file;
+
+ host_dev = dev_get_platdata(dev);
+ host_dev->fd = fd;
+ host_dev->filename = fname;
+
+ ret = device_probe(dev);
+ if (ret) {
+ device_unbind(dev);
+ goto err_file;
+ }
+
+ return 0;
+err_file:
+ os_close(fd);
+err:
+ free(fname);
+ free(str);
+ return ret;
+}
+#else
int host_dev_bind(int dev, char *filename)
{
struct host_block_dev *host_dev = find_host_device(dev);
return 1;
}
- block_dev_desc_t *blk_dev = &host_dev->blk_dev;
+ 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->dev = dev;
+ blk_dev->devnum = dev;
blk_dev->part_type = PART_TYPE_UNKNOWN;
- init_part(blk_dev);
+ part_init(blk_dev);
return 0;
}
+#endif
-int host_get_dev_err(int dev, block_dev_desc_t **blk_devp)
+int host_get_dev_err(int devnum, struct blk_desc **blk_devp)
{
- struct host_block_dev *host_dev = find_host_device(dev);
+#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);
+#else
+ struct host_block_dev *host_dev = find_host_device(devnum);
if (!host_dev)
return -ENODEV;
return -ENOENT;
*blk_devp = &host_dev->blk_dev;
+#endif
+
return 0;
}
-block_dev_desc_t *host_get_dev(int dev)
-{
- block_dev_desc_t *blk_dev;
-
- if (host_get_dev_err(dev, &blk_dev))
- return NULL;
-
- return blk_dev;
-}
+#ifdef CONFIG_BLK
+static const struct blk_ops sandbox_host_blk_ops = {
+ .read = host_block_read,
+ .write = host_block_write,
+};
+
+U_BOOT_DRIVER(sandbox_host_blk) = {
+ .name = "sandbox_host_blk",
+ .id = UCLASS_BLK,
+ .ops = &sandbox_host_blk_ops,
+ .platdata_auto_alloc_size = sizeof(struct host_block_dev),
+};
+#else
+U_BOOT_LEGACY_BLK(sandbox_host) = {
+ .if_typename = "host",
+ .if_type = IF_TYPE_HOST,
+ .max_devs = CONFIG_HOST_MAX_DEVICES,
+ .get_dev = host_get_dev_err,
+};
+#endif
projects / oweals / u-boot.git / blobdiff