+/*
+ * (C) Copyright 2014,2016 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+/*
+ * FAT filesystem commands
+ */
+
+#include "cmd_fat.h"
#include "common.h"
-#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "command.h"
#include "ff.h"
#include "z80-if.h"
+#include "eval_arg.h"
+#include "con-utils.h"
#include "print-utils.h"
+#include "time.h"
#include "timer.h"
#include "debug.h"
+#include "env.h"
+
+/* TODO: use memory size test function (cmd_mem.c) */
+#define MAX_MEMORY (1ul << 19)
+#define BUFFER_SIZE 512
+
+
+FATFS FatFs0;
+FATFS FatFs1;
+char chur_drv[3];
DWORD get_fattime (void)
{
- return 0;
+ time_t timer;
+ struct tm tm_timer;
+
+ time(&timer);
+ gmtime_r(&timer, &tm_timer);
+
+ return fatfs_time(&tm_timer);
+}
+
+
+static bool check_abort(void)
+{
+ bool ret = ctrlc();
+
+ if (ret)
+ printf_P(PSTR("Abort\n"));
+
+ return ret;
}
FSTR("TIMEOUT"),
FSTR("LOCKED"),
FSTR("NOT_ENOUGH_CORE"),
- FSTR("TOO_MANY_OPEN_FILES")
+ FSTR("TOO_MANY_OPEN_FILES"),
+ FSTR("INVALID_PARAMETER")
};
static
{
#if GCC_BUG_61443
printf_P(PSTR("rc=%u FR_"), rc);
- my_puts_P(rc_names[rc]);
+ my_puts_P(rc < ARRAY_SIZE(rc_names) ? rc_names[rc] : PSTR(" Unknown Error"));
my_puts_P(PSTR("\n"));
#else
- printf_P(PSTR("rc=%u FR_%S\n"), rc, rc_names[rc]);
+ printf_P(PSTR("rc=%u FR_%S\n"), rc,
+ rc < ARRAY_SIZE(rc_names) ? rc_names[rc] : PSTR(" Unknown Error"));
#endif
}
+
+void setup_fatfs(void)
+{
+ f_mount(&FatFs0, "0:", 0);
+ f_mount(&FatFs1, "1:", 0);
+}
+
+
+static void swirl(void)
+{
+ static const FLASH char swirlchar[] = { '-','\\','|','/' };
+ static uint_fast8_t cnt;
+ static uint32_t tstamp;
+
+ if (get_timer(0) > tstamp) {
+ printf_P(PSTR("\b%c"), swirlchar[cnt]);
+ cnt = (cnt+1) % ARRAY_SIZE(swirlchar);
+ tstamp = get_timer(0) + 250;
+ }
+}
+
/* Work register for fs command */
-static DWORD AccSize;
-static WORD AccFiles, AccDirs;
-#if _USE_LFN
-char Lfname[_MAX_LFN+1];
-FILINFO Finfo = {
- .lfname = Lfname,
- .lfsize = sizeof Lfname
- };
-#else
-FILINFO Finfo;
-#endif
+struct stat_dat_s {
+ DWORD AccSize;
+ WORD AccFiles, AccDirs;
+ FILINFO Finfo;
+};
static
FRESULT scan_files (
- char* path /* Pointer to the working buffer with start path */
+ char *path, /* Pointer to the working buffer with start path */
+ struct stat_dat_s *statp
)
{
DIR dirs;
char *fn;
res = f_opendir(&dirs, path);
-
+ swirl();
if (res == FR_OK) {
i = strlen(path);
- while (((res = f_readdir(&dirs, &Finfo)) == FR_OK) && Finfo.fname[0]) {
- if (_FS_RPATH && Finfo.fname[0] == '.') continue;
-#if _USE_LFN
- fn = *Finfo.lfname ? Finfo.lfname : Finfo.fname;
-#else
- fn = Finfo.fname;
-#endif
- if (Finfo.fattrib & AM_DIR) {
- AccDirs++;
- path[i] = '/'; strcpy(path+i+1, fn);
- res = scan_files(path);
+ while (((res = f_readdir(&dirs, &statp->Finfo)) == FR_OK) &&
+ statp->Finfo.fname[0]) {
+ if (FF_FS_RPATH && statp->Finfo.fname[0] == '.')
+ continue;
+ fn = statp->Finfo.fname;
+ if (statp->Finfo.fattrib & AM_DIR) {
+ statp->AccDirs++;
+ path[i] = '/';
+ strcpy(path+i+1, fn);
+ res = scan_files(path, statp);
path[i] = '\0';
- if (res != FR_OK) break;
+ if (res != FR_OK)
+ break;
} else {
-// printf_P(PSTR("%s/%s\n"), path, fn);
- AccFiles++;
- AccSize += Finfo.fsize;
+ //printf_P(PSTR("%s/%s\n"), path, fn);
+ statp->AccFiles++;
+ statp->AccSize += statp->Finfo.fsize;
+ }
+ if (check_abort()) {
+ res = 255;
+ break;
}
}
}
* fatstat path - Show logical drive status
*
*/
-command_ret_t do_fat_stat(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_stat(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- FATFS FatFs, *fs;
- DWORD clusters;
+ FATFS *fs;
+ DWORD nfreeclst;
FRESULT res;
- char buffer[512];
+ char *path;
+ struct stat_dat_s statp;
(void) cmdtp; (void) flag; (void) argc;
- res = f_mount(&FatFs, argv[1], 0);
- if (!res)
- res = f_getfree(argv[1], &clusters, &fs);
- if (res) {
- put_rc(res);
+ path = (char *) malloc(BUFFER_SIZE);
+ if (path == NULL) {
+ printf_P(PSTR("fatstat: Out of Memory!\n"));
+ free(path);
return CMD_RET_FAILURE;
}
- printf_P(PSTR(
- "FAT type: %u\n"
- "Bytes/Cluster: %lu\n"
- "Number of FATs: %u\n"
- "Root DIR entries: %u\n"
- "Sectors/FAT: %lu\n"
- "Number of clusters: %lu\n"
- "FAT start (lba): %lu\n"
- "DIR start (lba,cluster): %lu\n"
- "Data start (lba): %lu\n"),
- fs->fs_type, (DWORD)fs->csize * 512, fs->n_fats,
- fs->n_rootdir, fs->fsize, fs->n_fatent - 2,
- fs->fatbase, fs->dirbase, fs->database);
+ res = f_getfree(argv[1], &nfreeclst, &fs);
+ if (!res) {
+ printf_P(PSTR(
+ "FAT type: %u\n"
+ "Bytes/Cluster: %lu\n"
+ "Number of FATs: %u\n"
+ "Root DIR entries: %u\n"
+ "Sectors/FAT: %lu\n"
+ "Number of clusters: %lu\n"
+ "FAT start (lba): %lu\n"
+ "DIR start (lba,cluster): %lu\n"
+ "Data start (lba): %lu\n"),
+ fs->fs_type, (DWORD)fs->csize * 512, fs->n_fats,
+ fs->n_rootdir, fs->fsize, fs->n_fatent - 2,
+ fs->fatbase, fs->dirbase, fs->database);
#if _USE_LABEL
- TCHAR label[12];
- DWORD serial;
- res = f_getlabel(argv[1], label, &serial);
+ TCHAR label[12];
+ DWORD serial;
+ res = f_getlabel(argv[1], label, &serial);
+ if (!res) {
+ printf_P(PSTR(
+ "Volume name: %s\n"
+ "Volume S/N: %04X-%04X\n"),
+ label, (WORD)(serial >> 16), (WORD)(serial & 0xFFFF));
+ }
+#endif
+ if (!res) {
+ my_puts_P(PSTR("\nCounting... "));
+ statp.AccSize = statp.AccFiles = statp.AccDirs = 0;
+ strcpy(path, argv[1]);
+
+ res = scan_files(path, &statp);
+ }
+ if (!res) {
+ printf_P(PSTR("\r%u files, %lu bytes.\n%u folders.\n"
+ "%lu KB total disk space.\n%lu KB available.\n"),
+ statp.AccFiles, statp.AccSize, statp.AccDirs,
+ (fs->n_fatent - 2) * (fs->csize / 2), nfreeclst * (fs->csize / 2)
+ );
+ }
+ }
+
+ free(path);
if (res) {
put_rc(res);
return CMD_RET_FAILURE;
}
- printf_P(PSTR(
- "Volume name: %s\n"
- "Volume S/N: %04X-%04X\n"),
- label, (WORD)(serial >> 16), (WORD)(serial & 0xFFFF));
-#endif
- my_puts_P(PSTR("\n..."));
- AccSize = AccFiles = AccDirs = 0;
+ return CMD_RET_SUCCESS;
+}
- strcpy(buffer, argv[1]);
+/*
+ * pwd - Print current directory of the current drive.
+ *
+ */
+command_ret_t do_pwd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ FRESULT res;
+ char *buf;
+
+ (void) cmdtp; (void) flag; (void) argc; (void) argv;
+
+ buf = (char *) malloc(BUFFER_SIZE);
+ if (buf == NULL) {
+ printf_P(PSTR("pwd: Out of Memory!\n"));
+ free(buf);
+ return CMD_RET_FAILURE;
+ }
- res = scan_files(buffer);
+ res = f_getcwd(buf, BUFFER_SIZE); /* Get current directory path */
+
+ if (!res) {
+ puts(buf);
+ }
+ free(buf);
if (res) {
put_rc(res);
return CMD_RET_FAILURE;
}
- printf_P(PSTR("\r%u files, %lu bytes.\n%u folders.\n"
- "%lu KB total disk space.\n%lu KB available.\n"),
- AccFiles, AccSize, AccDirs,
- (fs->n_fatent - 2) * (fs->csize / 2), clusters * (fs->csize / 2)
- );
+ return CMD_RET_SUCCESS;
+}
+
+
+/*
+ * cd - Change the current/working directory.
+ *
+ */
+command_ret_t do_cd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ char *arg;
+ FRESULT res = 0;
+
+ (void) cmdtp; (void) flag; (void) argc;
+
+ if (argc < 2) {
+ arg = getenv_str(PSTR(ENV_HOME));
+ if (arg == NULL) {
+ printf_P(PSTR("%s: \"%S\" is not set\n"), argv[0], PSTR(ENV_HOME));
+ return CMD_RET_FAILURE;
+ }
+ } else
+ arg = argv[1];
+
+ if (arg[1] == ':') {
+ char drv[3];
+ drv[2] = '\0';
+ drv[1] = ':';
+ drv[0] = arg[0];
+ res = f_chdrive(drv);
+ }
+ if (!res) {
+ res = f_chdir(arg);
+ }
- res = f_mount(NULL, argv[1], 0);
if (res) {
put_rc(res);
return CMD_RET_FAILURE;
* fatls path - Directory listing
*
*/
-command_ret_t do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- FATFS FatFs, *fs;
+ FATFS *fs;
DIR Dir; /* Directory object */
FILINFO Finfo;
unsigned long p1;
unsigned int s1, s2;
- FRESULT res;
-#if _USE_LFN
- char Lfname[_MAX_LFN+1];
- Finfo.lfname = Lfname;
- Finfo.lfsize = sizeof Lfname;
-#endif
+ FRESULT res = FR_OK;
+ char *buf;
(void) cmdtp; (void) flag; (void) argc;
- res = f_mount(&FatFs, argv[1], 0);
- if (!res)
- res = f_opendir(&Dir, argv[1]);
- if (res) {
+ buf = (char *) malloc(BUFFER_SIZE);
+ if (buf == NULL) {
+ printf_P(PSTR("pwd: Out of Memory!\n"));
+ free(buf);
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc < 2)
+ res = f_getcwd(buf, BUFFER_SIZE); /* Get current directory path */
+ else
+ strncpy(buf, argv[1], BUFFER_SIZE);
+
+ if (res == FR_OK)
+ res = f_opendir(&Dir, buf);
+ if (res != FR_OK) {
+ free(buf);
put_rc(res);
return CMD_RET_FAILURE;
}
} else {
s1++; p1 += Finfo.fsize;
}
- printf_P(PSTR("%c%c%c%c%c %u/%02u/%02u %02u:%02u %9lu %s"),
+ printf_P(PSTR("%c%c%c%c%c %u/%02u/%02u %02u:%02u %9lu %s\n"),
(Finfo.fattrib & AM_DIR) ? 'D' : '-',
(Finfo.fattrib & AM_RDO) ? 'R' : '-',
(Finfo.fattrib & AM_HID) ? 'H' : '-',
(Finfo.fattrib & AM_ARC) ? 'A' : '-',
(Finfo.fdate >> 9) + 1980, (Finfo.fdate >> 5) & 15, Finfo.fdate & 31,
(Finfo.ftime >> 11), (Finfo.ftime >> 5) & 63,
- Finfo.fsize, &(Finfo.fname[0]));
-#if _USE_LFN
- for (int i = strlen(Finfo.fname); i < 14; i++)
- putchar(' ');
- printf_P(PSTR("%s\n"), Lfname);
-#else
- putchar('\n');
-#endif
+ Finfo.fsize, Finfo.fname);
+ if (check_abort())
+ break;
}
if (res == FR_OK) {
printf_P(PSTR("%4u File(s),%10lu bytes total\n%4u Dir(s)"), s1, p1, s2);
- if (f_getfree(argv[1], (DWORD*)&p1, &fs) == FR_OK)
+ if (f_getfree(buf, (DWORD*)&p1, &fs) == FR_OK)
printf_P(PSTR(", %10luK bytes free\n"), p1 * fs->csize / 2);
}
+ free(buf);
if (res) {
put_rc(res);
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
+static
+FRESULT mkpath(TCHAR *path)
+{
+ /* TODO: */
+ (void) path;
+#if 0
+ FILINFO fd
+ TCHAR *p, *q;
+ FRESULT ret;
+
+ res = f_stat (path, &fd)
+
+ p = strchr(path, ':');
+ if (p == NULL || *++p == '\0' || *p++ != '/')
+ return FR_OK;
+
+ while ((q = strchr(p, '/')) != NULL) {
+ *q = '\0';
+ ret = f_mkdir(path);
+ *q = '/';
+ if (ret != FR_OK && ret != FR_EXIST)
+ return ret;
+ p = q + 1;
+ }
+#endif
+
+ return FR_OK;
+}
/*
- * fatread - load binary file from a dos filesystem
- * <d:/path/filename> <addr> [bytes [pos]]
+ * fatread/write - load binary file to/from a dos filesystem
+ * read <d:/path/filename> <addr> [bytes [pos]]
+ * write <d:/path/filename> <addr> <bytes>
*/
-command_ret_t do_fat_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_rw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- FATFS FatFs;
FIL File;
- unsigned long bytes = 0x80000;
- unsigned long pos= 0;
- unsigned long bytes_read;
uint32_t addr;
- FRESULT res;
+ unsigned long bytes;
+ unsigned long pos;
+ unsigned long bytes_rw;
+
+ bool dowrite = (argv[0][3] == 'w');
+ FRESULT res = FR_OK;
bool buserr = 0;
uint32_t timer;
- uint8_t buffer[512];
+ uint8_t *buffer;
(void) cmdtp; (void) flag;
- if (argc < 3)
+ if (argc < (dowrite ? 4 : 3))
return CMD_RET_USAGE;
- addr = strtoul(argv[2], 0, 16);
+ addr = eval_arg(argv[2], NULL);
+ if (addr >= MAX_MEMORY) {
+ printf_P(PSTR("address too high: 0x%0lx\n"), addr);
+ return CMD_RET_FAILURE;
+ }
if (argc > 3)
- bytes = strtoul(argv[3], 0, 16);
+ bytes = eval_arg(argv[3], NULL);
+ else
+ bytes = MAX_MEMORY;
if (argc > 4)
- pos = strtoul(argv[4], 0, 16);
+ pos = eval_arg(argv[4], NULL);
+ else
+ pos = 0;
+
+ if (addr + bytes > MAX_MEMORY)
+ bytes = MAX_MEMORY - addr;
+
+ buffer = (uint8_t *) malloc(BUFFER_SIZE);
+ if (buffer == NULL) {
+ printf_P(PSTR("fatstat: Out of Memory!\n"));
+ free(buffer);
+ return CMD_RET_FAILURE;
+ }
- res = f_mount(&FatFs, argv[1], 0);
+ if (dowrite) {
+ res = mkpath(argv[1]);
+ }
if (!res) {
- res = f_open(&File, argv[1], FA_READ);
+ res = f_open(&File, argv[1], dowrite ? FA_WRITE | FA_CREATE_ALWAYS
+ : FA_READ );
if (!res) {
res = f_lseek(&File, pos);
if (!res) {
- bytes_read = 0;
+ bytes_rw = 0;
timer = get_timer(0);
while (bytes) {
unsigned int cnt, br;
- if (bytes >= sizeof buffer) {
- cnt = sizeof buffer;
- bytes -= sizeof buffer;
+ if (bytes >= BUFFER_SIZE) {
+ cnt = BUFFER_SIZE;
+ bytes -= BUFFER_SIZE;
} else {
cnt = bytes; bytes = 0;
}
- res = f_read(&File, buffer, cnt, &br);
- if (res != FR_OK)
- break;
- if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
- buserr = 1;
- break;
+ if (dowrite) {
+ if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
+ buserr = 1;
+ break;
+ }
+ z80_read_block(buffer, addr, cnt);
+ z80_bus_cmd(Release);
+ res = f_write(&File, buffer, cnt, &br);
+ if (res != FR_OK)
+ break;
+ } else {
+ res = f_read(&File, buffer, cnt, &br);
+ if (res != FR_OK)
+ break;
+ if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
+ buserr = 1;
+ break;
+ }
+ z80_write_block(buffer, addr, br);
+ z80_bus_cmd(Release);
}
- z80_write_block(buffer, addr, br);
- z80_bus_cmd(Release);
addr += br;
- bytes_read += br;
- if (cnt != br)
+ bytes_rw += br;
+ if (cnt != br) {
+ if (dowrite)
+ printf_P(PSTR("Disk full?\n"));
+ break;
+ }
+ if (check_abort())
break;
}
+
+ FRESULT fr = f_close(&File);
+ if (!res)
+ res = fr;
timer = get_timer(timer);
- printf_P(PSTR("%lu bytes read with %lu bytes/sec.\n"),
- bytes_read, timer ? (bytes_read * 1000 / timer) : 0);
+ printf_P(PSTR("%lu (0x%lx) bytes read/written with %lu bytes/sec.\n"),
+ bytes_rw, bytes_rw, timer ? (bytes_rw * 1000 / timer) : 0);
}
}
- f_mount(NULL, argv[1], 0);
}
+ free(buffer);
+
if (buserr)
my_puts_P(PSTR("Bus timeout\n"));
if (res)
return CMD_RET_SUCCESS;
}
-/*
- * fatwrite - write file into a dos filesystem
- * <d:/path/filename> <addr> <bytes>
- */
-command_ret_t do_fat_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+
+static
+command_ret_t do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+
+cmd_tbl_t cmd_fat_sub[] = {
+CMD_TBL_ITEM(
+ stat, 2, 1, do_stat,
+ "Show logical drive status",
+ "dev"
+),
+CMD_TBL_ITEM(
+ pwd, 2, 1, do_pwd,
+ "Print name of current/working directory",
+ ""
+),
+CMD_TBL_ITEM(
+ cd, 2, 1, do_cd,
+ "Change the current/working directory.",
+ "path"
+),
+CMD_TBL_ITEM(
+ ls, 2, 1, do_ls,
+ "Directory listing",
+ "path"
+),
+CMD_TBL_ITEM(
+ load, 5, 0, do_rw,
+ "load binary file from a dos filesystem",
+ "<d:/path/filename> <addr> [bytes [pos]]\n"
+ " - Load binary file 'path/filename' on logical drive 'd'\n"
+ " to address 'addr' from dos filesystem.\n"
+ " 'pos' gives the file position to start loading from.\n"
+ " If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
+ " 'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
+ " the load stops on end of file."
+),
+CMD_TBL_ITEM(
+ write, 4, 0, do_rw,
+ "write file into a dos filesystem",
+ "<d:/path/filename> <addr> <bytes>\n"
+ " - Write file to 'path/filename' on logical drive 'd' from RAM\n"
+ " starting at address 'addr'.\n"
+),
+
+CMD_TBL_ITEM(
+ help, CONFIG_SYS_MAXARGS, 1, do_help,
+ "Print sub command description/usage",
+ "\n"
+ " - print brief description of all sub commands\n"
+ "fat help command ...\n"
+ " - print detailed usage of sub cmd 'command'"
+),
+
+/* This does not use the CMD_TBL_ITEM macro as ? can't be used in symbol names */
+ {FSTR("?"), CONFIG_SYS_MAXARGS, 1, do_help,
+ FSTR("Alias for 'help'"),
+#ifdef CONFIG_SYS_LONGHELP
+ FSTR(""),
+#endif /* CONFIG_SYS_LONGHELP */
+#ifdef CONFIG_AUTO_COMPLETE
+ 0,
+#endif
+},
+};
+
+static
+command_ret_t do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- FATFS FatFs;
- FIL File;
- unsigned long bytes;
- unsigned long bytes_written;
- uint32_t addr;
- FRESULT res;
- bool buserr = 0;
- uint32_t timer;
- uint8_t buffer[512];
+ return _do_help(cmd_fat_sub, ARRAY_SIZE(cmd_fat_sub), cmdtp, flag, argc, argv);
+}
- (void) cmdtp; (void) flag;
- if (argc < 4)
+command_ret_t do_fat(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ cmd_tbl_t *cp;
+
+ if (argc < 2)
return CMD_RET_USAGE;
- addr = strtoul(argv[2], 0, 16);
- bytes = strtoul(argv[3], 0, 16);
+ /* drop initial "fat" arg */
+ argc--;
+ argv++;
- res = f_mount(&FatFs, argv[1], 0);
- if (!res) {
- res = f_open(&File, argv[1], FA_CREATE_ALWAYS | FA_WRITE);
- if (!res) {
- bytes_written = 0;
- timer = get_timer(0);
- while (bytes) {
- unsigned int cnt, br;
-
- if (bytes >= sizeof buffer) {
- cnt = sizeof buffer;
- bytes -= sizeof buffer;
- } else {
- cnt = bytes; bytes = 0;
- }
- if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
- buserr = 1;
- break;
- }
- z80_read_block(buffer, addr, cnt);
- z80_bus_cmd(Release);
- res = f_write(&File, buffer, cnt, &br);
- if (res != FR_OK)
- break;
- addr += br;
- bytes_written += br;
- if (cnt != br)
- break;
- }
- res = f_close(&File);
- timer = get_timer(timer);
- printf_P(PSTR("%lu bytes written with %lu bytes/sec.\n"),
- bytes_written, timer ? (bytes_written * 1000 / timer) : 0);
- }
- f_mount(NULL, argv[1], 0);
- }
+ cp = find_cmd_tbl(argv[0], cmd_fat_sub, ARRAY_SIZE(cmd_fat_sub));
- if (buserr)
- my_puts_P(PSTR("Bus timeout\n"));
- if (res)
- put_rc(res);
- if (buserr || res)
- return CMD_RET_FAILURE;
+ if (cp)
+ return cp->cmd(cmdtp, flag, argc, argv);
- return CMD_RET_SUCCESS;
+ return CMD_RET_USAGE;
}