Diff: mbed-dev/targets/TARGET_ARM_SSG/TARGET_IOTSS/ethernet_api.c

Revision:

18:6a4db94011d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/targets/TARGET_ARM_SSG/TARGET_IOTSS/ethernet_api.c	Sun May 14 23:18:57 2017 +0000
@@ -0,0 +1,164 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <string.h>
+
+#include "ethernet_api.h"
+#include "mps2_ethernet_api.h"
+#include "cmsis.h"
+#include "mbed_interface.h"
+#include "mbed_toolchain.h"
+#include "mbed_error.h"
+#include "ETH_MPS2.h"
+#include "mbed_wait_api.h"
+
+#define TX_PKT_SIZE 256
+#define RX_PKT_SIZE 300
+
+// Types
+#undef FALSE
+#undef TRUE
+#define FALSE   0
+#define TRUE    1
+
+/*----------------------------------------------------------------------------
+  Ethernet Device initialize
+ *----------------------------------------------------------------------------*/
+int ethernet_init()
+{
+      int error;
+    error = 0;
+
+    if(smsc9220_check_id()) {
+        error = TRUE;
+    }
+
+    if(smsc9220_soft_reset()) {
+        error = TRUE;
+    }
+
+    smsc9220_set_txfifo(5);
+
+    // Sets automatic flow control thresholds, and backpressure
+    // threshold to defaults specified.
+    SMSC9220->AFC_CFG = 0x006E3740;
+
+    if(smsc9220_wait_eeprom()) {
+        error = TRUE;
+    }
+
+    // Configure GPIOs as LED outputs.
+    SMSC9220->GPIO_CFG = 0x70070000;
+
+    smsc9220_init_irqs();
+
+    /* Configure MAC addresses here if needed. */
+
+    if(smsc9220_check_phy()) {
+        error = TRUE;
+    }
+
+    if(smsc9220_reset_phy()) {
+        error = TRUE;
+        return error;
+    }
+
+    wait_ms(100);
+    // Checking whether phy reset completed successfully.
+    {
+        unsigned short phyreset;
+        phyreset = 0;
+        smsc9220_phy_regread(SMSC9220_PHY_BCONTROL, &phyreset);
+        if(phyreset & (1 << 15)) {
+            error = TRUE;
+            return error;
+        }
+    }
+
+    /* Advertise capabilities */
+    smsc9220_advertise_cap();
+
+
+    /* Begin to establish link */
+    smsc9220_establish_link();      // bit [12] of BCONTROL seems self-clearing.
+                                    // Although it's not so in the manual.
+
+    /* Interrupt threshold */
+    SMSC9220->FIFO_INT = 0xFF000000;
+
+    smsc9220_enable_mac_xmit();
+
+    smsc9220_enable_xmit();
+
+    SMSC9220->RX_CFG = 0;
+
+    smsc9220_enable_mac_recv();
+
+    // Rx status FIFO level irq threshold
+    SMSC9220->FIFO_INT &= ~(0xFF);  // Clear 2 bottom nibbles
+
+    // This sleep is compulsory otherwise txmit/receive will fail.
+    wait_ms(2000);
+    return error;
+
+}
+
+/*----------------------------------------------------------------------------
+  Ethernet Device Uninitialize
+ *----------------------------------------------------------------------------*/
+void ethernet_free() {
+}
+
+int ethernet_write(const char *data, int size)
+{
+        return 0;
+}
+
+int ethernet_send() 
+{
+ return 0;
+}
+
+int ethernet_receive() 
+{
+    return 0;
+}
+
+// Read from an recevied ethernet packet.
+// After receive returnd a number bigger than 0 it is
+// possible to read bytes from this packet.
+// Read will write up to size bytes into data.
+// It is possible to use read multible times.
+// Each time read will start reading after the last read byte before.
+
+int ethernet_read(char *data, int dlen) 
+{
+    return 0;
+}
+
+void ethernet_address(char *mac) {
+    mbed_mac_address(mac);
+}
+
+int ethernet_link(void) 
+{
+    return 0;
+}
+
+void ethernet_set_link(int speed, int duplex)
+{
+    smsc9220_establish_link();
+}
+