int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
int rcode = 0;
if (argc == 1) {
/* print all env vars */
rcode = env_print(NULL);
if (!rcode)
return 1;
printf("\nEnvironment size: %d/%ld bytes\n",
rcode, (ulong)ENV_SIZE);
return 0;
}
/* print selected env vars */
for (i = 1; i < argc; ++i) {
int rc = env_print(argv[i]);
if (!rc) {
printf("## Error: \"%s\" not defined\n", argv[i]);
++rcode;
}
}
return rcode;
}
static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int i;
int rcode = 0;
int env_flag = H_HIDE_DOT;
if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
argc--;
argv++;
env_flag &= ~H_HIDE_DOT;
}
if (argc == 1) {
/* print all env vars */
rcode = env_print(NULL, env_flag);
if (!rcode)
return 1;
printf("\nEnvironment size: %d/%ld bytes\n",
rcode, (ulong)ENV_SIZE);
return 0;
}
/* print selected env vars */
env_flag &= ~H_HIDE_DOT;
for (i = 1; i < argc; ++i) {
int rc = env_print(argv[i], env_flag);
if (!rc) {
printf("## Error: \"%s\" not defined\n", argv[i]);
++rcode;
}
}
return rcode;
}
int do_printfac(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
char v[] = "vendor";
char d[] = "device";
env_print(v);
env_print(d);
//printf("vendor = %s\n", "huahuan");
return 0;
}
void real_main (int argc, char *const argv[]) {
int i;
/* TODO: handle -i */
env_import ();
for (i = 1; i < argc && is_assignment (argv[i]); ++i)
env_parse_assignment (argv[i]);
if (i == argc)
env_print ();
else {
env_export ();
must_execvp (argv + i);
}
}
/**
* virtqueue_dump Dumps important virtqueue fields , use for debugging purposes
*
* @param vq - Pointer to VirtIO queue control block
*/
void virtqueue_dump(struct virtqueue *vq)
{
if (vq == VQ_NULL)
return;
env_print("VQ: %s - size=%d; free=%d; used=%d; queued=%d; "
"desc_head_idx=%d; avail.idx=%d; used_cons_idx=%d; "
"used.idx=%d; avail.flags=0x%x; used.flags=0x%x\r\n",
vq->vq_name, vq->vq_nentries, vq->vq_free_cnt,
virtqueue_nused(vq), vq->vq_queued_cnt, vq->vq_desc_head_idx,
vq->vq_ring.avail->idx, vq->vq_used_cons_idx,
vq->vq_ring.used->idx, vq->vq_ring.avail->flags,
vq->vq_ring.used->flags);
}
/**
* virtqueue_free - Frees VirtIO queue resources
*
* @param vq - Pointer to VirtIO queue control block
*
*/
void virtqueue_free(struct virtqueue *vq)
{
if (vq != VQ_NULL) {
if (vq->vq_free_cnt != vq->vq_nentries) {
env_print
("\r\nWARNING %s: freeing non-empty virtqueue\r\n",
vq->vq_name);
}
//TODO : Need to free indirect buffers here
if (vq->vq_ring_mem != VQ_NULL) {
vq->vq_ring_size = 0;
vq->vq_ring_mem = VQ_NULL;
}
env_free_memory(vq);
}
}
