1 files changed, 374 insertions, 0 deletions
diff --git a/app/ATTIC/lwip_glue.c b/app/ATTIC/lwip_glue.c
new file mode 100644
index 0000000..0fb7922
--- /dev/null
+++ b/app/ATTIC/lwip_glue.c
@@ -0,0 +1,374 @@
+#include <project.h>
+
+struct netif if0;
+
+
+uint32_t sys_now (void)
+{
+  return ticks;
+}
+
+void dispatch_lwip (void)
+{
+#if 0
+  if (link_lost())
+    netif_set_down (&if0);
+
+  if (link_gained())
+    netif_set_up (&if0);
+#endif
+
+  sys_check_timeouts();
+
+#if 0
+
+  /* Fine DHCP periodic process every 500ms */
+  if (localtime - DHCPfineTimer >= DHCP_FINE_TIMER_MSECS) {
+    DHCPfineTimer =  localtime;
+    dhcp_fine_tmr();
+
+    if ((DHCP_state != DHCP_ADDRESS_ASSIGNED) && (DHCP_state != DHCP_TIMEOUT)) {
+      /* toggle LED1 to indicate DHCP on-going process */
+      STM_EVAL_LEDToggle (LED1);
+
+      /* process DHCP state machine */
+      LwIP_DHCP_Process_Handle();
+    }
+  }
+
+  /* DHCP Coarse periodic process every 60s */
+  if (localtime - DHCPcoarseTimer >= DHCP_COARSE_TIMER_MSECS) {
+    DHCPcoarseTimer =  localtime;
+    dhcp_coarse_tmr();
+  }
+
+#endif
+}
+
+
+
+void start_lwip (void)
+{
+  struct ip_addr ipaddr;
+  struct ip_addr netmask;
+  struct ip_addr gw;
+
+  // uint8_t macaddress[6]={0,0,0,0,0,1};
+
+  lwip_init();
+
+  IP4_ADDR (&ipaddr, 10, 32, 94, 9);
+  IP4_ADDR (&netmask, 255, 255, 255, 0);
+  IP4_ADDR (&gw, 10, 32, 94, 1);
+
+
+  netif_add (&if0, &ipaddr, &netmask, &gw, NULL, steth_lwip_init , ethernet_input);
+
+  /*  Registers the default network interface.*/
+  netif_set_default (&if0);
+
+  netif_set_up (&if0);
+
+
+}
+
+
+
+
+
+
+
+
+
+
+
+#if 0
+/**
+  ******************************************************************************
+  * @file    netconf.c
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    11/20/2009
+  * @brief   Network connection configuration
+  ******************************************************************************
+  * @copy
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2009 STMicroelectronics</center></h2>
+  */
+
+#include "lwip/memp.h"
+#include "lwip/tcp.h"
+#include "lwip/udp.h"
+#include "netif/etharp.h"
+//include "lwip/dhcp.h"
+#include "ethernetif.h"
+#include <stdint.h>
+#include "stm32f4x7_eth.h"
+#include <string.h>
+#include "netconf.h"
+
+struct netif netif;
+uint32_t TCPTimer = 0;
+uint32_t ARPTimer = 0;
+
+/* Ethernet Rx & Tx DMA Descriptors */
+extern ETH_DMADESCTypeDef  DMARxDscrTab[ETH_RXBUFNB], DMATxDscrTab[ETH_TXBUFNB];
+
+/* Ethernet Driver Receive buffers  */
+extern uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE];
+
+/* Ethernet Driver Transmit buffers */
+extern uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE];
+
+/* Global pointers to track current transmit and receive descriptors */
+extern ETH_DMADESCTypeDef  *DMATxDescToSet;
+extern ETH_DMADESCTypeDef  *DMARxDescToGet;
+
+/* Put ethernet related stuff in struct so it causes less namespace pollution
+ * and is easier to access from debugger   */
+struct {
+  uint8_t connected_;
+  uint16_t lost_links_;
+  uint32_t last_link_up_time_;
+} ethernet_state;
+
+void send_raw_packet()
+{
+  //ETH_TxPkt_ChainMode(l);
+}
+
+/**
+  * @brief  Initializes the lwIP stack
+  * @param  None
+  * @retval None
+  *
+  * Should only be called once at start-up.  Ethernet interface does not
+  * need to have link for this to be called.
+  */
+/** \brief Checks PHY's link status
+ *  \returns true if there is a link, false if there is an error, or no link
+ */
+uint8_t checkEthernetLink()
+{
+  // PHY_BSR -- defined in stm32f4x7_eth.h
+  // The basic status register number for the Micrel KSZ8051MLL PHY is 0x1
+  // If MDIO read times out, ETH_ReadPHYRegister returns ETH_ERROR (0) which make link look down
+  uint8_t has_link = (ETH_ReadPHYRegister (PHY_ADDRESS, PHY_BSR) & PHY_Linked_Status) ? 1 : 0;
+  return has_link;
+}
+
+/**
+  * @brief  Called when a frame is received
+  * @param  None
+  * @retval None
+  */
+void LwIP_Pkt_Handle (void)
+{
+  /* Read a received packet from the Ethernet buffers and send it to the lwIP for handling */
+  ethernetif_input (&if0);
+}
+
+/**
+  * @brief  LwIP periodic tasks
+  * @param  localtime the current LocalTime value
+  * @retval None
+  */
+#ifdef USE_DHCP
+/**
+  * @brief  LwIP_DHCP_Process_Handle
+  * @param  None
+  * @retval None
+  */
+void LwIP_DHCP_Process_Handle()
+{
+  struct ip_addr ipaddr;
+  struct ip_addr netmask;
+  struct ip_addr gw;
+  uint8_t iptab[4];
+  uint8_t iptxt[20];
+
+  switch (DHCP_state) {
+  case DHCP_START: {
+    dhcp_start (&if0);
+    IPaddress = 0;
+    DHCP_state = DHCP_WAIT_ADDRESS;
+  }
+  break;
+
+  case DHCP_WAIT_ADDRESS: {
+    /* Read the new IP address */
+    IPaddress = netif.ip_addr.addr;
+
+    if (IPaddress != 0) {
+      DHCP_state = DHCP_ADDRESS_ASSIGNED;
+
+      /* Stop DHCP */
+      dhcp_stop (&if0);
+    } else {
+      /* DHCP timeout */
+      if (netif.dhcp->tries > MAX_DHCP_TRIES) {
+        DHCP_state = DHCP_TIMEOUT;
+
+        /* Stop DHCP */
+        dhcp_stop (&if0);
+
+        /* Static address used */
+        IP4_ADDR (&ipaddr, IP_ADDR0 , IP_ADDR1 , IP_ADDR2 , IP_ADDR3);
+        IP4_ADDR (&netmask, NETMASK_ADDR0, NETMASK_ADDR1, NETMASK_ADDR2, NETMASK_ADDR3);
+        IP4_ADDR (&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
+        netif_set_addr (&if0, &ipaddr , &netmask, &gw);
+      }
+    }
+  }
+  break;
+
+  default:
+    break;
+  }
+}
+#endif
+
+/*void ETH_IRQHandler(void)
+{
+  while(ETH_GetRxPktSize() != 0)
+  {
+    LwIP_Pkt_Handle();
+  }
+
+  ETH_DMAClearITPendingBit(ETH_DMA_IT_R);
+  ETH_DMAClearITPendingBit(ETH_DMA_IT_NIS);
+}*/
+
+/**
+  * @brief  Configures the Ethernet Interface
+  * @param  None
+  * @retval ETH_ERROR on failure, ETH_SUCCESS on success
+  *
+  * Should be called everytime PHY gets a new link (in case link speed or duplex is differnet)
+  * Before being called, ethernet link should be set to "down" with netif_set_down()
+  * This prevents LwIP from attempt to send packets on link
+  */
+uint32_t Ethernet_Init (void)
+{
+  /* Enable SYSCFG clock */
+  RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
+
+  /* Enable ETHERNET clock  */
+  //RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ETH_MAC | RCC_AHBPeriph_ETH_MAC_Tx |
+  //                      RCC_AHBPeriph_ETH_MAC_Rx, ENABLE);
+  //RCC->AHB1ENR |= RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
+
+  ETH_InitTypeDef ETH_InitStructure;
+
+  /* Configure MII_RMII selection bit */
+  SYSCFG_ETH_MediaInterfaceConfig (SYSCFG_ETH_MediaInterface_RMII);
+
+  /* Reset ETHERNET on AHB Bus */
+  ETH_DeInit();
+
+  /* Software reset */
+  ETH_SoftwareReset();
+  //RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
+
+  /* Wait for software reset */
+  while (ETH_GetSoftwareResetStatus() == SET);
+
+  RCC->AHB1ENR |= RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
+
+  /* ETHERNET Configuration ------------------------------------------------------*/
+  /* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */
+  ETH_StructInit (&ETH_InitStructure);
+
+  /* Fill ETH_InitStructure parametrs */
+  /*------------------------   MAC   -----------------------------------*/
+  ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable  ;
+  ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
+  ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
+  ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
+  ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Disable;
+  ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable;
+  ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
+  ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
+  ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
+#ifdef CHECKSUM_BY_HARDWARE
+  ETH_InitStructure.ETH_ChecksumOffload = ETH_ChecksumOffload_Enable;
+#endif
+
+  /*------------------------   DMA   -----------------------------------*/
+
+  /* When we use the Checksum offload feature, we need to enable the Store and Forward mode:
+  the store and forward guarantee that a whole frame is stored in the FIFO, so the MAC can insert/verify the checksum,
+  if the checksum is OK the DMA can handle the frame otherwise the frame is dropped */
+  ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Enable;
+  ETH_InitStructure.ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Enable;
+  ETH_InitStructure.ETH_TransmitStoreForward = ETH_TransmitStoreForward_Enable;
+
+  ETH_InitStructure.ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Disable;
+  ETH_InitStructure.ETH_ForwardUndersizedGoodFrames = ETH_ForwardUndersizedGoodFrames_Disable;
+  ETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Enable;
+  ETH_InitStructure.ETH_AddressAlignedBeats = ETH_AddressAlignedBeats_Enable;
+  ETH_InitStructure.ETH_FixedBurst = ETH_FixedBurst_Enable;
+  ETH_InitStructure.ETH_RxDMABurstLength = ETH_RxDMABurstLength_32Beat;
+  ETH_InitStructure.ETH_TxDMABurstLength = ETH_TxDMABurstLength_32Beat;
+  ETH_InitStructure.ETH_DMAArbitration = ETH_DMAArbitration_RoundRobin_RxTx_2_1;
+
+  /* initialize MAC address in ethernet MAC */
+  ETH_MACAddressConfig (ETH_MAC_Address0, netif.hwaddr);
+
+  /* Configure Ethernet */
+  if (ETH_Init (&ETH_InitStructure, PHY_ADDRESS) == ETH_ERROR)
+    return ETH_ERROR;
+
+  /* Initialize Tx Descriptors list: Chain Mode */
+  ETH_DMATxDescChainInit (DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);
+  /* Initialize Rx Descriptors list: Chain Mode  */
+  ETH_DMARxDescChainInit (DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);
+
+#ifdef CHECKSUM_BY_HARDWARE
+
+  /* Enable the TCP, UDP and ICMP checksum insertion for the Tx frames */
+  for (int i = 0; i < ETH_TXBUFNB; i++)
+    ETH_DMATxDescChecksumInsertionConfig (&DMATxDscrTab[i], ETH_DMATxDesc_ChecksumTCPUDPICMPFull);
+
+#endif
+
+  /* Note: TCP, UDP, ICMP checksum checking for received frame are enabled in DMA config */
+
+  /* Enable MAC and DMA transmission and reception */
+  ETH_Start();
+
+  /* Enable the Ethernet Rx Interrupt */
+  //  ETH_DMAITConfig(ETH_DMA_IT_NIS | ETH_DMA_IT_R, ENABLE);
+
+  //  NVIC_InitTypeDef   NVIC_InitStructure;
+
+  /* MACCR has an errata where writes that occur next to each other can be ignored.
+   * Have MACCR writen after a delay to guarentee that the register write goes through.
+   */
+  {
+    uint32_t i = 28 * 4;  // delay about 4 us
+
+    while (i-- > 0)
+      __asm__ ("nop");
+  }
+  ETH_MACReceptionCmd (ENABLE);
+
+  /* Enable the Ethernet global Interrupt
+  NVIC_InitStructure.NVIC_IRQChannel = ETH_IRQn;
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  NVIC_Init(&NVIC_InitStructure); */
+  //  NVIC_SetPriority(ETH_IRQn, 3);
+  //  NVIC_EnableIRQ(ETH_IRQn);
+
+  return ETH_SUCCESS;
+}
+#endif