[dm][ethernet] Add ethernet for DM

Signed-off-by: GuEe-GUI <[email protected]>

5 files changed, 100 insertions, 0 deletions

diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 58192e98a6..f412357349 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -7,6 +7,7 @@ rsource "serial/Kconfig"
 rsource "can/Kconfig"
 rsource "adc/Kconfig"
 rsource "clock_time/Kconfig"
+rsource "ethernet/Kconfig"
 rsource "i2c/Kconfig"
 rsource "phy/Kconfig"
 rsource "misc/Kconfig"
diff --git a/components/drivers/ethernet/Kconfig b/components/drivers/ethernet/Kconfig
new file mode 100644
index 0000000000..deb89f4e5d
--- /dev/null
+++ b/components/drivers/ethernet/Kconfig
@@ -0,0 +1,11 @@
+menuconfig RT_USING_ETHERNET
+    bool "Using Ethernet device drivers"
+    depends on RT_USING_DM
+    depends on RT_USING_SAL
+    depends on RT_USING_NETDEV
+    depends on RT_USING_LWIP
+    default n
+
+if RT_USING_ETHERNET
+    osource "$(SOC_DM_ETHERNET_DIR)/Kconfig"
+endif
diff --git a/components/drivers/ethernet/SConscript b/components/drivers/ethernet/SConscript
new file mode 100644
index 0000000000..f292627b5f
--- /dev/null
+++ b/components/drivers/ethernet/SConscript
@@ -0,0 +1,21 @@
+from building import *
+
+group = []
+
+if not GetDepend(['RT_USING_ETHERNET']):
+    Return('group')
+
+cwd = GetCurrentDir()
+list = os.listdir(cwd)
+CPPPATH = [cwd + '/../include']
+
+src = ['ethernet_dm.c']
+
+group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        group = group + SConscript(os.path.join(d, 'SConscript'))
+
+Return('group')
diff --git a/components/drivers/ethernet/ethernet_dm.c b/components/drivers/ethernet/ethernet_dm.c
new file mode 100644
index 0000000000..77560d7141
--- /dev/null
+++ b/components/drivers/ethernet/ethernet_dm.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-11-25     GuEe-GUI     first version
+ */
+
+#include <drivers/core/dm.h>
+
+#include "ethernet_dm.h"
+
+static rt_uint32_t _qrand32(rt_uint32_t seed)
+{
+    rt_uint32_t ret;
+    static rt_uint32_t next = 1;
+
+    next = next * 1103515245 + 12345;
+
+    ret = (rt_uint32_t)(next / 65536) % 32768;
+
+    if (seed)
+    {
+        ret *= seed;
+    }
+
+    return ret;
+}
+
+void ethernet_random_addr(struct eth_device *eth, rt_uint8_t *addr)
+{
+    rt_tick_t tick = rt_tick_get();
+    rt_uint32_t rand = (_qrand32(tick) << 16) | _qrand32(tick);
+    const char *name = rt_dm_dev_get_name(&eth->parent);
+
+    addr[5] = ((rt_uint8_t *)&rand)[3];
+    addr[4] = ((rt_uint8_t *)&rand)[2];
+    addr[3] = name[0] & 0xf;
+    addr[2] = name[1] & 0xf;
+    addr[1] = ((rt_uint8_t *)&rand)[1];
+    addr[0] = ((rt_uint8_t *)&rand)[0];
+
+    addr[0] &= 0xfe;    /* Clear multicast bit */
+    addr[0] |= 0x02;    /* Set local assignment bit (IEEE802) */
+}
diff --git a/components/drivers/ethernet/ethernet_dm.h b/components/drivers/ethernet/ethernet_dm.h
new file mode 100644
index 0000000000..a846b065d6
--- /dev/null
+++ b/components/drivers/ethernet/ethernet_dm.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-11-25     GuEe-GUI     first version
+ */
+
+#ifndef __ETHERNET_DM_H__
+#define __ETHERNET_DM_H__
+
+#include <rtthread.h>
+
+#include <netif/ethernetif.h>
+
+void ethernet_random_addr(struct eth_device *eth, rt_uint8_t *addr);
+
+#endif /* __ETHERNET_DM_H__ */