mtd: nand/docg4: fix driver after Linux resync

[karo-tx-uboot.git] / include / os.h

diff --git a/include/os.h b/include/os.h
index 6b7ee474f04ddee319694d03e1c73eca47460f6c..038aba9e4fe02c8e5764d48e866507d2832f325e 100644 (file)
--- a/include/os.h
+++ b/include/os.h
@@ -27,6 +27,8 @@
 #ifndef __OS_H__
 #define __OS_H__
 
+struct sandbox_state;
+
 /**
  * Access to the OS read() system call
  *
@@ -37,6 +39,16 @@
  */
 ssize_t os_read(int fd, void *buf, size_t count);
 
+/**
+ * Access to the OS read() system call with non-blocking access
+ *
+ * \param fd   File descriptor as returned by os_open()
+ * \param buf  Buffer to place data
+ * \param count        Number of bytes to read
+ * \return number of bytes read, or -1 on error
+ */
+ssize_t os_read_no_block(int fd, void *buf, size_t count);
+
 /**
  * Access to the OS write() system call
  *
@@ -93,7 +105,7 @@ int os_close(int fd);
  *
  * @param exit_code    exit code for U-Boot
  */
-void os_exit(int exit_code);
+void os_exit(int exit_code) __attribute__((noreturn));
 
 /**
  * Put tty into raw mode to mimic serial console better
@@ -122,4 +134,64 @@ void os_usleep(unsigned long usec);
  */
 u64 os_get_nsec(void);
 
+/**
+ * Parse arguments and update sandbox state.
+ *
+ * @param state                Sandbox state to update
+ * @param argc         Argument count
+ * @param argv         Argument vector
+ * @return 0 if ok, and program should continue;
+ *     1 if ok, but program should stop;
+ *     -1 on error: program should terminate.
+ */
+int os_parse_args(struct sandbox_state *state, int argc, char *argv[]);
+
+/*
+ * Types of directory entry that we support. See also os_dirent_typename in
+ * the C file.
+ */
+enum os_dirent_t {
+       OS_FILET_REG,           /* Regular file */
+       OS_FILET_LNK,           /* Symbolic link */
+       OS_FILET_DIR,           /* Directory */
+       OS_FILET_UNKNOWN,       /* Something else */
+
+       OS_FILET_COUNT,
+};
+
+/** A directory entry node, containing information about a single dirent */
+struct os_dirent_node {
+       struct os_dirent_node *next;    /* Pointer to next node, or NULL */
+       ulong size;                     /* Size of file in bytes */
+       enum os_dirent_t type;          /* Type of entry */
+       char name[0];                   /* Name of entry */
+};
+
+/**
+ * Get a directionry listing
+ *
+ * This allocates and returns a linked list containing the directory listing.
+ *
+ * @param dirname      Directory to examine
+ * @param headp                Returns pointer to head of linked list, or NULL if none
+ * @return 0 if ok, -ve on error
+ */
+int os_dirent_ls(const char *dirname, struct os_dirent_node **headp);
+
+/**
+ * Get the name of a directory entry type
+ *
+ * @param type         Type to cehck
+ * @return string containing the name of that type, or "???" if none/invalid
+ */
+const char *os_dirent_get_typename(enum os_dirent_t type);
+
+/**
+ * Get the size of a file
+ *
+ * @param fname                Filename to check
+ * @return size of file, or -1 if an error ocurred
+ */
+ssize_t os_get_filesize(const char *fname);
+
 #endif