devices: merge to list_head
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/common/devices.c b/common/devices.c
index 9cc963a..2977436 100644
--- a/common/devices.c
+++ b/common/devices.c
@@ -36,7 +36,7 @@
DECLARE_GLOBAL_DATA_PTR;
-list_t devlist = 0;
+static device_t devs;
device_t *stdio_devices[] = { NULL, NULL, NULL };
char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
@@ -48,18 +48,18 @@
#ifdef CFG_DEVICE_NULLDEV
void nulldev_putc(const char c)
{
- /* nulldev is empty! */
+ /* nulldev is empty! */
}
void nulldev_puts(const char *s)
{
- /* nulldev is empty! */
+ /* nulldev is empty! */
}
int nulldev_input(void)
{
- /* nulldev is empty! */
- return 0;
+ /* nulldev is empty! */
+ return 0;
}
#endif
@@ -108,10 +108,32 @@
* DEVICES
**************************************************************************
*/
+struct list_head* device_get_list(void)
+{
+ return &(devs.list);
+}
+
+device_t* device_get_by_name(char* name)
+{
+ struct list_head *pos;
+ device_t *dev;
+
+ if(!name)
+ return NULL;
+
+ list_for_each(pos, &(devs.list)) {
+ dev = list_entry(pos, device_t, list);
+ if(strcmp(dev->name, name) == 0)
+ return dev;
+ }
+
+ return NULL;
+}
+
int device_register (device_t * dev)
{
- ListInsertItem (devlist, dev, LIST_END);
+ list_add(&(dev->list), &(devs.list));
return 0;
}
@@ -121,20 +143,15 @@
#ifdef CFG_DEVICE_DEREGISTER
int device_deregister(char *devname)
{
- int i,l,dev_index;
- device_t *dev = NULL;
+ int l;
+ struct list_head *pos;
+ device_t *dev;
char temp_names[3][8];
- dev_index = -1;
- for (i=1; i<=ListNumItems(devlist); i++) {
- dev = ListGetPtrToItem (devlist, i);
- if(strcmp(dev->name,devname)==0) {
- dev_index=i;
- break;
- }
- }
- if(dev_index<0) /* device not found */
- return 0;
+ dev = device_get_by_name(devname);
+
+ if(!dev) /* device not found */
+ return -1;
/* get stdio devices (ListRemoveItem changes the dev list) */
for (l=0 ; l< MAX_FILES; l++) {
if (stdio_devices[l] == dev) {
@@ -145,14 +162,15 @@
stdio_devices[l]->name,
sizeof(stdio_devices[l]->name));
}
- ListRemoveItem(devlist,NULL,dev_index);
+
+ list_del(&(dev->list));
+
/* reassign Device list */
- for (i=1; i<=ListNumItems(devlist); i++) {
- dev = ListGetPtrToItem (devlist, i);
+ list_for_each(pos, &(devs.list)) {
+ dev = list_entry(pos, device_t, list);
for (l=0 ; l< MAX_FILES; l++) {
- if(strcmp(dev->name,temp_names[l])==0) {
+ if(strcmp(dev->name, temp_names[l]) == 0)
stdio_devices[l] = dev;
- }
}
}
return 0;
@@ -161,7 +179,7 @@
int devices_init (void)
{
-#ifndef CONFIG_ARM /* already relocated for current ARM implementation */
+#ifndef CONFIG_ARM /* already relocated for current ARM implementation */
ulong relocation_offset = gd->reloc_off;
int i;
@@ -173,12 +191,8 @@
#endif
/* Initialize the list */
- devlist = ListCreate (sizeof (device_t));
+ INIT_LIST_HEAD(&(devs.list));
- if (devlist == NULL) {
- eputs ("Cannot initialize the list of devices!\n");
- return -1;
- }
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
#endif
@@ -207,10 +221,3 @@
return (0);
}
-
-int devices_done (void)
-{
- ListDispose (devlist);
-
- return 0;
-}
