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Diffstat (limited to 'api/api.c')
-rw-r--r--api/api.c59
1 files changed, 38 insertions, 21 deletions
diff --git a/api/api.c b/api/api.c
index bc9454eb4b..71fa03804e 100644
--- a/api/api.c
+++ b/api/api.c
@@ -295,27 +295,31 @@ static int API_dev_close(va_list ap)
/*
- * Notice: this is for sending network packets only, as U-Boot does not
- * support writing to storage at the moment (12.2007)
- *
* pseudo signature:
*
* int API_dev_write(
* struct device_info *di,
* void *buf,
- * int *len
+ * int *len,
+ * unsigned long *start
* )
*
* buf: ptr to buffer from where to get the data to send
*
- * len: length of packet to be sent (in bytes)
+ * len: ptr to length to be read
+ * - network: len of packet to be sent (in bytes)
+ * - storage: # of blocks to write (can vary in size depending on define)
*
+ * start: ptr to start block (only used for storage devices, ignored for
+ * network)
*/
static int API_dev_write(va_list ap)
{
struct device_info *di;
void *buf;
- int *len;
+ lbasize_t *len_stor, act_len_stor;
+ lbastart_t *start;
+ int *len_net;
int err = 0;
/* 1. arg is ptr to the device_info struct */
@@ -333,23 +337,36 @@ static int API_dev_write(va_list ap)
if (buf == NULL)
return API_EINVAL;
- /* 3. arg is length of buffer */
- len = (int *)va_arg(ap, uintptr_t);
- if (len == NULL)
- return API_EINVAL;
- if (*len <= 0)
- return API_EINVAL;
+ if (di->type & DEV_TYP_STOR) {
+ /* 3. arg - ptr to var with # of blocks to write */
+ len_stor = (lbasize_t *)va_arg(ap, uintptr_t);
+ if (!len_stor)
+ return API_EINVAL;
+ if (*len_stor <= 0)
+ return API_EINVAL;
- if (di->type & DEV_TYP_STOR)
- /*
- * write to storage is currently not supported by U-Boot:
- * no storage device implements block_write() method
- */
- return API_ENODEV;
+ /* 4. arg - ptr to var with start block */
+ start = (lbastart_t *)va_arg(ap, uintptr_t);
- else if (di->type & DEV_TYP_NET)
- err = dev_write_net(di->cookie, buf, *len);
- else
+ act_len_stor = dev_write_stor(di->cookie, buf, *len_stor, *start);
+ if (act_len_stor != *len_stor) {
+ debugf("write @ %llu: done %llu out of %llu blocks",
+ (uint64_t)blk, (uint64_t)act_len_stor,
+ (uint64_t)len_stor);
+ return API_EIO;
+ }
+
+ } else if (di->type & DEV_TYP_NET) {
+ /* 3. arg points to the var with length of packet to write */
+ len_net = (int *)va_arg(ap, uintptr_t);
+ if (!len_net)
+ return API_EINVAL;
+ if (*len_net <= 0)
+ return API_EINVAL;
+
+ err = dev_write_net(di->cookie, buf, *len_net);
+
+ } else
err = API_ENODEV;
return err;