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riscv-openocd
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added option to use ramdisk instead of flash jffs2 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1103 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-10-27 10:17:36 +00:00
parent edfca66467
commit 3ddcbd6b58
1 changed files with 184 additions and 4 deletions
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188
src/ecosboard.c
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@ -840,12 +840,19 @@ static void copyfile(char *name2, char *name1)
if( err < 0 ) SHOW_RESULT( close, err );
}
static void copydir(char *name)
static void copydir(char *name, char *destdir)
{
int err;
DIR *dirp;
mkdir("/ram/cgi", 0777);
dirp = opendir(destdir);
if (dirp==NULL)
{
mkdir(destdir, 0777);
} else
{
err = closedir(dirp);
}
dirp = opendir(name);
if( dirp == NULL ) SHOW_RESULT( opendir, -1 );
@ -884,9 +891,11 @@ static void copydir(char *name)
char fullname2[PATH_MAX];
strcpy(fullname, name);
strcat(fullname, "/");
strcat(fullname, entry->d_name);
strcpy(fullname2, "/ram/cgi/");
strcpy(fullname2, destdir);
strcat(fullname2, "/");
strcat(fullname2, entry->d_name);
// diag_printf("from %s to %s\n", fullname, fullname2);
copyfile(fullname, fullname2);
@ -1791,8 +1800,16 @@ int add_default_dirs(void)
return ERROR_OK;
}
static cyg_uint8 *ramblockdevice;
static const int ramblockdevice_size=4096*1024;
int main(int argc, char *argv[])
{
/* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
* need to allocate towards the end of the heap. */
ramblockdevice=(cyg_uint8 *)malloc(ramblockdevice_size);
memset(ramblockdevice, 0xff, ramblockdevice_size);
setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
@ -1849,12 +1866,53 @@ int main(int argc, char *argv[])
diag_printf("Zylin ZY1000. Copyright Zylin AS 2007-2008.\n");
diag_printf("%s\n", ZYLIN_OPENOCD_VERSION);
copydir("/rom/");
copydir("/rom", "/ram/cgi");
err = mount("/dev/flash1", "/config", "jffs2");
if (err < 0)
{
diag_printf("unable to mount jffs\n");
reboot();
}
/* are we using a ram disk instead of a flash disk? This is used
* for ZY1000 live demo...
*
* copy over flash disk to ram block device
*/
if (boolParam("ramdisk"))
{
diag_printf("Unmounting /config from flash and using ram instead\n");
err=umount("/config");
if (err < 0)
{
diag_printf("unable to unmount jffs\n");
reboot();
}
err = mount("/dev/flash1", "/config2", "jffs2");
if (err < 0)
{
diag_printf("unable to mount jffs\n");
reboot();
}
err = mount("/dev/ram", "/config", "jffs2");
if (err < 0)
{
diag_printf("unable to mount ram block device\n");
reboot();
}
// copydir("/config2", "/config");
copyfile("/config2/ip", "/config/ip");
copydir("/config2/settings", "/config/settings");
umount("/config2");
} else
{
/* we're not going to use a ram block disk */
free(ramblockdevice);
}
@ -2370,6 +2428,8 @@ logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
static int logfs_fo_close(struct CYG_FILE_TAG *fp);
#include <cyg/io/devtab.h>
//==========================================================================
// Filesystem table entries
@ -2473,3 +2533,123 @@ static int logfs_fo_close(struct CYG_FILE_TAG *fp)
{
return ENOERR;
}
static bool
ramiodev_init( struct cyg_devtab_entry *tab )
{
return true;
}
static Cyg_ErrNo
ramiodev_bread( cyg_io_handle_t handle, void *buf, cyg_uint32 *len,
cyg_uint32 pos)
{
if (*len+pos>ramblockdevice_size)
{
*len=ramblockdevice_size-pos;
}
memcpy(buf, ramblockdevice+pos, *len);
return ENOERR;
}
static Cyg_ErrNo
ramiodev_bwrite( cyg_io_handle_t handle, const void *buf, cyg_uint32 *len,
cyg_uint32 pos )
{
if (((pos%4)!=0)||(((*len)%4)!=0))
{
diag_printf("Unaligned write %d %d!", pos, *len);
}
memcpy(ramblockdevice+pos, buf, *len);
return ENOERR;
}
static Cyg_ErrNo
ramiodev_get_config( cyg_io_handle_t handle,
cyg_uint32 key,
void* buf,
cyg_uint32* len)
{
switch (key) {
case CYG_IO_GET_CONFIG_FLASH_ERASE:
{
if ( *len != sizeof( cyg_io_flash_getconfig_erase_t ) )
return -EINVAL;
{
cyg_io_flash_getconfig_erase_t *e = (cyg_io_flash_getconfig_erase_t *)buf;
char *startpos = ramblockdevice + e->offset;
if (((e->offset%(64*1024))!=0)||((e->len%(64*1024))!=0))
{
diag_printf("Erease is not aligned %d %d\n", e->offset, e->len);
}
memset(startpos, 0xff, e->len);
e->flasherr = 0;
}
return ENOERR;
}
case CYG_IO_GET_CONFIG_FLASH_DEVSIZE:
{
if ( *len != sizeof( cyg_io_flash_getconfig_devsize_t ) )
return -EINVAL;
{
cyg_io_flash_getconfig_devsize_t *d =
(cyg_io_flash_getconfig_devsize_t *)buf;
d->dev_size = ramblockdevice_size;
}
return ENOERR;
}
case CYG_IO_GET_CONFIG_FLASH_BLOCKSIZE:
{
cyg_io_flash_getconfig_blocksize_t *b =
(cyg_io_flash_getconfig_blocksize_t *)buf;
if ( *len != sizeof( cyg_io_flash_getconfig_blocksize_t ) )
return -EINVAL;
// offset unused for now
b->block_size = 64*1024;
return ENOERR;
}
default:
return -EINVAL;
}
}
static Cyg_ErrNo
ramiodev_set_config( cyg_io_handle_t handle,
cyg_uint32 key,
const void* buf,
cyg_uint32* len)
{
switch (key) {
default:
return -EINVAL;
}
} // ramiodev_set_config()
// get_config/set_config should be added later to provide the other flash
// operations possible, like erase etc.
BLOCK_DEVIO_TABLE( cyg_io_ramdev1_ops,
&ramiodev_bwrite,
&ramiodev_bread,
0, // no select
&ramiodev_get_config,
&ramiodev_set_config
);
BLOCK_DEVTAB_ENTRY( cyg_io_ramdev1,
"/dev/ram",
0,
&cyg_io_ramdev1_ops,
&ramiodev_init,
0, // No lookup required
NULL );