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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15138 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

This commit is contained in:
Giovanni Di Sirio 2021-11-26 15:28:35 +00:00
parent e1289f82da
commit 31d49e9170
2 changed files with 75 additions and 0 deletions
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3
demos/STM32/RT-VFS-FATFS/make/stm32l4r9ai_discovery.make
View File

@ -106,6 +106,9 @@ include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk
# RTOS files (optional).
include $(CHIBIOS)/os/rt/rt.mk
include $(CHIBIOS)/os/common/ports/ARMv7-M/compilers/GCC/mk/port.mk
# VFS files (optional).
include $(CHIBIOS)/os/vfs/vfs.mk
include $(CHIBIOS)/os/vfs/drivers/streams/drvstreams.mk
# Auto-build files in ./source recursively.
include $(CHIBIOS)/tools/mk/autobuild.mk
# Other files (optional).

72
os/vfs/src/vfssystem.c
View File

@ -139,6 +139,66 @@ msg_t match_driver(const char **pathp, vfs_driver_t **vdpp) {
return err;
}
static msg_t root_open_dir(void *instance,
const char *path,
vfs_directory_node_t **vdnpp) {
msg_t err;
vfs_root_driver_t *rootp = (vfs_root_driver_t *)instance;
do {
err = vfs_parse_match_separator(&path);
VFS_BREAK_ON_ERROR(err);
if (*path == '\0') {
/* Creating a root directory node.*/
vfs_root_dir_node_t *rdnp = chPoolAlloc(&rootp->dir_nodes_pool);
if (rdnp != NULL) {
/* Node object initialization.*/
rdnp->vmt = &root_dir_node_vmt;
rdnp->refs = 1U;
rdnp->driver = (vfs_driver_t *)&vfs;
rdnp->index = 0U;
*vdnpp = (vfs_directory_node_t *)rdnp;
return VFS_RET_SUCCESS;
}
}
else {
vfs_driver_t *dp;
/* Delegating node creation to a registered driver.*/
err = match_driver(&path, &dp);
VFS_BREAK_ON_ERROR(err);
err = dp->vmt->open_dir((void *)dp, path, vdnpp);
}
}
while (false);
return err;
}
static msg_t root_open_file(void *instance,
const char *path,
vfs_file_node_t **vfnpp) {
msg_t err;
(void)instance;
(void)vfnpp;
do {
err = vfs_parse_match_separator(&path);
VFS_BREAK_ON_ERROR(err);
/* Always not found, there are no files in the root.*/
err = VFS_RET_NOT_FOUND;
}
while (false);
return err;
}
static void node_dir_release(void *instance) {
vfs_root_dir_node_t *rdnp = (vfs_root_dir_node_t *)instance;
@ -160,6 +220,16 @@ static msg_t node_dir_first(void *instance, vfs_node_info_t *nip) {
static msg_t node_dir_next(void *instance, vfs_node_info_t *nip) {
vfs_root_dir_node_t *rdnp = (vfs_root_dir_node_t *)instance;
if (rdnp->index < VFS_CFG_MAX_DRIVERS) {
nip->attr = VFS_NODE_ATTR_ISDIR | VFS_NODE_ATTR_READONLY;
nip->size = (vfs_offset_t)0;
strcpy(nip->name, rdnp->driver->rootname);
rdnp->index++;
return VFS_RET_SUCCESS;
}
return VFS_RET_EOF;
}
@ -175,6 +245,8 @@ static msg_t node_dir_next(void *instance, vfs_node_info_t *nip) {
*/
void vfsInit(void) {
vfs.vmt = &root_driver_vmt;
vfs.next_driver = &vfs.drivers[0];
chPoolObjectInit(&vfs.dir_nodes_pool,