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authorJoe Hershberger <joe.hershberger@ni.com>2018-09-26 16:48:55 -0500
committerJoe Hershberger <joe.hershberger@ni.com>2018-10-10 12:28:57 -0500
commitc7eb733d606667508b69ee922e9738d55259304e (patch)
treed836fdf2de7b2d5f36bb1c3bee79d67ecd7f1f9d /drivers/net/sandbox.c
parente95bb1611043ff1ad5b63602e32bba302e402491 (diff)
net: sandbox: Make the fake eth driver response configurable
Make the send handler registerable so tests can check for different things. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/net/sandbox.c')
-rw-r--r--drivers/net/sandbox.c55
1 files changed, 51 insertions, 4 deletions
diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c
index c472261568..db461b892e 100644
--- a/drivers/net/sandbox.c
+++ b/drivers/net/sandbox.c
@@ -10,6 +10,7 @@
#include <dm.h>
#include <malloc.h>
#include <net.h>
+#include <asm/eth.h>
#include <asm/test.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -22,6 +23,7 @@ DECLARE_GLOBAL_DATA_PTR;
* disabled: Will not respond
* recv_packet_buffer: buffer of the packet returned as received
* recv_packet_length: length of the packet returned as received
+ * tx_handler - function to generate responses to sent packets
*/
struct eth_sandbox_priv {
uchar fake_host_hwaddr[ARP_HLEN];
@@ -29,6 +31,7 @@ struct eth_sandbox_priv {
bool disabled;
uchar *recv_packet_buffer;
int recv_packet_length;
+ sandbox_eth_tx_hand_f *tx_handler;
};
static bool skip_timeout;
@@ -165,6 +168,52 @@ int sandbox_eth_ping_req_to_reply(struct udevice *dev, void *packet,
return 0;
}
+/*
+ * sb_default_handler()
+ *
+ * perform typical responses to simple ping
+ *
+ * dev - device pointer
+ * pkt - "sent" packet buffer
+ * len - length of packet
+ */
+static int sb_default_handler(struct udevice *dev, void *packet,
+ unsigned int len)
+{
+ if (!sandbox_eth_arp_req_to_reply(dev, packet, len))
+ return 0;
+ if (!sandbox_eth_ping_req_to_reply(dev, packet, len))
+ return 0;
+
+ return 0;
+}
+
+/*
+ * sandbox_eth_set_tx_handler()
+ *
+ * Set a custom response to a packet being sent through the sandbox eth test
+ * driver
+ *
+ * index - interface to set the handler for
+ * handler - The func ptr to call on send. If NULL, set to default handler
+ */
+void sandbox_eth_set_tx_handler(int index, sandbox_eth_tx_hand_f *handler)
+{
+ struct udevice *dev;
+ struct eth_sandbox_priv *priv;
+ int ret;
+
+ ret = uclass_get_device(UCLASS_ETH, index, &dev);
+ if (ret)
+ return;
+
+ priv = dev_get_priv(dev);
+ if (handler)
+ priv->tx_handler = handler;
+ else
+ priv->tx_handler = sb_default_handler;
+}
+
static int sb_eth_start(struct udevice *dev)
{
struct eth_sandbox_priv *priv = dev_get_priv(dev);
@@ -185,10 +234,7 @@ static int sb_eth_send(struct udevice *dev, void *packet, int length)
if (priv->disabled)
return 0;
- if (!sandbox_eth_arp_req_to_reply(dev, packet, length))
- return 0;
- if (!sandbox_eth_ping_req_to_reply(dev, packet, length))
- return 0;
+ return priv->tx_handler(dev, packet, length);
}
static int sb_eth_recv(struct udevice *dev, int flags, uchar **packetp)
@@ -254,6 +300,7 @@ static int sb_eth_ofdata_to_platdata(struct udevice *dev)
}
memcpy(priv->fake_host_hwaddr, mac, ARP_HLEN);
priv->disabled = false;
+ priv->tx_handler = sb_default_handler;
return 0;
}