API for external applications.
This is an API for external (standalone) applications running on top of
U-Boot, and is meant to be more extensible and robust than the existing
jumptable mechanism. It is similar to UNIX syscall approach. See api/README
for more details.
Included is the demo application using this new framework (api_examples).
Please note this is still an experimental feature, and is turned off by
default.
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
diff --git a/api/api_net.c b/api/api_net.c
new file mode 100644
index 0000000..9b20a17
--- /dev/null
+++ b/api/api_net.c
@@ -0,0 +1,113 @@
+/*
+ * (C) Copyright 2007 Semihalf
+ *
+ * Written by: Rafal Jaworowski <raj@semihalf.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <config.h>
+
+#if defined(CONFIG_API)
+
+#include <common.h>
+#include <net.h>
+#include <linux/types.h>
+#include <api_public.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define DEBUG
+#undef DEBUG
+
+#if !defined(CONFIG_NET_MULTI)
+#error "API/net is currently only available for platforms with CONFIG_NET_MULTI"
+#endif
+
+#ifdef DEBUG
+#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
+#else
+#define debugf(fmt, args...)
+#endif
+
+#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
+
+
+static int dev_valid_net(void *cookie)
+{
+ return ((void *)eth_get_dev() == cookie) ? 1 : 0;
+}
+
+int dev_open_net(void *cookie)
+{
+ if (!dev_valid_net(cookie))
+ return API_ENODEV;
+
+ if (eth_init(gd->bd) < 0)
+ return API_EIO;
+
+ return 0;
+}
+
+int dev_close_net(void *cookie)
+{
+ if (!dev_valid_net(cookie))
+ return API_ENODEV;
+
+ eth_halt();
+ return 0;
+}
+
+/*
+ * There can only be one active eth interface at a time - use what is
+ * currently set to eth_current
+ */
+int dev_enum_net(struct device_info *di)
+{
+ struct eth_device *eth_current = eth_get_dev();
+
+ di->type = DEV_TYP_NET;
+ di->cookie = (void *)eth_current;
+ if (di->cookie == NULL)
+ return 0;
+
+ memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
+
+ debugf("device found, returning cookie 0x%08x\n",
+ (u_int32_t)di->cookie);
+
+ return 1;
+}
+
+int dev_write_net(void *cookie, void *buf, int len)
+{
+ /* XXX verify that cookie points to a valid net device??? */
+
+ return eth_send(buf, len);
+}
+
+int dev_read_net(void *cookie, void *buf, int len)
+{
+ /* XXX verify that cookie points to a valid net device??? */
+
+ return eth_receive(buf, len);
+}
+
+#endif /* CONFIG_API */
