diff options
| author | Henrik Nordström <henrik@henriknordstrom.net> | 2013-11-10 10:26:56 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-01-08 17:24:03 -0700 |
| commit | f4d8de48f5a2aa1885daa0d425b8c0568a2ccb69 (patch) | |
| tree | d86aea3653bfff137f2a94bea66d5fbddcb59853 /include | |
| parent | 60d18d3fe9d1a5db663711063cd0d5c915af377a (diff) | |
sandbox: block driver using host file/device as backing store
Provide a way to use any host file or device as a block device in U-Boot.
This can be used to provide filesystem access within U-Boot to an ext2
image file on the host, for example.
The support is plumbed into the filesystem and partition interfaces.
We don't want to print a message in the driver every time we find a missing
device. Pass the information back to the caller where a message can be printed
if desired.
Signed-off-by: Henrik Nordström <henrik@henriknordstrom.net>
Signed-off-by: Simon Glass <sjg@chromium.org>
- Removed change to part.c get_device_and_partition()
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/config_fallbacks.h | 3 | ||||
| -rw-r--r-- | include/configs/sandbox.h | 3 | ||||
| -rw-r--r-- | include/part.h | 5 | ||||
| -rw-r--r-- | include/sandboxblockdev.h | 18 |
4 files changed, 28 insertions, 1 deletions
diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h index 3633b09aa9..d8339b26cc 100644 --- a/include/config_fallbacks.h +++ b/include/config_fallbacks.h @@ -50,7 +50,8 @@ defined(CONFIG_CMD_PART) || \ defined(CONFIG_CMD_GPT) || \ defined(CONFIG_MMC) || \ - defined(CONFIG_SYSTEMACE) + defined(CONFIG_SYSTEMACE) || \ + defined(CONFIG_SANDBOX) #define HAVE_BLOCK_DEVICE #endif diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index 7e78a231d7..98bdd70ffa 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -39,6 +39,9 @@ #define CONFIG_CMD_FAT #define CONFIG_CMD_EXT4 #define CONFIG_CMD_EXT4_WRITE +#define CONFIG_CMD_PART +#define CONFIG_DOS_PARTITION +#define CONFIG_HOST_MAX_DEVICES 4 #define CONFIG_SYS_VSNPRINTF diff --git a/include/part.h b/include/part.h index ce840bd841..4beb6db89b 100644 --- a/include/part.h +++ b/include/part.h @@ -58,6 +58,8 @@ typedef struct block_dev_desc { #define IF_TYPE_MMC 6 #define IF_TYPE_SD 7 #define IF_TYPE_SATA 8 +#define IF_TYPE_HOST 9 +#define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ /* Part types */ #define PART_TYPE_UNKNOWN 0x00 @@ -102,6 +104,8 @@ block_dev_desc_t* usb_stor_get_dev(int dev); block_dev_desc_t* mmc_get_dev(int dev); block_dev_desc_t* systemace_get_dev(int dev); block_dev_desc_t* mg_disk_get_dev(int dev); +block_dev_desc_t *host_get_dev(int dev); +int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); /* disk/part.c */ int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); @@ -123,6 +127,7 @@ static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; } static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; } static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; } static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; } +static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; } static inline int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info) { return -1; } diff --git a/include/sandboxblockdev.h b/include/sandboxblockdev.h new file mode 100644 index 0000000000..627787aa32 --- /dev/null +++ b/include/sandboxblockdev.h @@ -0,0 +1,18 @@ +/* + * Copyright (c) 2013, Henrik Nordstrom <henrik@henriknordstrom.net> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __SANDBOX_BLOCK_DEV__ +#define __SANDBOX_BLOCK_DEV__ + +struct host_block_dev { + block_dev_desc_t blk_dev; + char *filename; + int fd; +}; + +int host_dev_bind(int dev, char *filename); + +#endif |