Diff: arch/ext/W5500.cpp

Revision:

0:6f28332c466f

Child:

3:f8c6efc8bf83

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/arch/ext/W5500.cpp	Mon Jun 15 11:18:37 2015 +0900
@@ -0,0 +1,425 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "mbed_debug.h"
+#include "eth_arch.h"
+#include "DNSClient.h"
+
+#ifdef USE_W5500
+//Debug is disabled by default
+#if 0
+#define DBG(...) do{debug("%p %d %s ", this,__LINE__,__PRETTY_FUNCTION__); debug(__VA_ARGS__); } while(0);
+//#define DBG(x, ...) debug("[W5500:DBG]"x"\r\n", ##__VA_ARGS__);
+#define WARN(x, ...) debug("[W5500:WARN]"x"\r\n", ##__VA_ARGS__);
+#define ERR(x, ...) debug("[W5500:ERR]"x"\r\n", ##__VA_ARGS__);
+#else
+#define DBG(x, ...)
+#define WARN(x, ...)
+#define ERR(x, ...)
+#endif
+
+#if 1
+#define INFO(x, ...) debug("[W5500:INFO]"x"\r\n", ##__VA_ARGS__);
+#else
+#define INFO(x, ...)
+#endif
+
+#define DBG_SPI 0
+
+WIZnet_Chip* WIZnet_Chip::inst;
+
+WIZnet_Chip::WIZnet_Chip(PinName mosi, PinName miso, PinName sclk, PinName _cs, PinName _reset):
+    cs(_cs), reset_pin(_reset)
+{
+    spi = new SPI(mosi, miso, sclk);
+    cs = 1;
+    reset_pin = 1;
+    inst = this;
+}
+
+WIZnet_Chip::WIZnet_Chip(SPI* spi, PinName _cs, PinName _reset):
+    cs(_cs), reset_pin(_reset)
+{
+    this->spi = spi;
+    cs = 1;
+    reset_pin = 1;
+    inst = this;
+}
+
+// Set the IP
+bool WIZnet_Chip::setip()
+{
+    reg_wr<uint32_t>(SIPR, ip);
+    reg_wr<uint32_t>(GAR, gateway);
+    reg_wr<uint32_t>(SUBR, netmask);
+    return true;
+}
+
+bool WIZnet_Chip::setProtocol(int socket, Protocol p)
+{
+    if (socket < 0) {
+        return false;
+    }
+    sreg<uint8_t>(socket, Sn_MR, p);
+    return true;
+}
+
+bool WIZnet_Chip::connect(int socket, const char * host, int port, int timeout_ms)
+{
+    if (socket < 0) {
+        return false;
+    }
+    sreg<uint8_t>(socket, Sn_MR, TCP);
+    scmd(socket, OPEN);
+    sreg_ip(socket, Sn_DIPR, host);
+    sreg<uint16_t>(socket, Sn_DPORT, port);
+    sreg<uint16_t>(socket, Sn_PORT, new_port());
+    scmd(socket, CONNECT);
+    Timer t;
+    t.reset();
+    t.start();
+    while(!is_connected(socket)) {
+        if (t.read_ms() > timeout_ms) {
+            return false;
+        }
+    }
+    return true;
+}
+
+bool WIZnet_Chip::gethostbyname(const char* host, uint32_t* ip)
+{
+    uint32_t addr = str_to_ip(host);
+    char buf[17];
+    snprintf(buf, sizeof(buf), "%d.%d.%d.%d", (addr>>24)&0xff, (addr>>16)&0xff, (addr>>8)&0xff, addr&0xff);
+    if (strcmp(buf, host) == 0) {
+        *ip = addr;
+        return true;
+    }
+    DNSClient client;
+    if(client.lookup(host)) {
+        *ip = client.ip;
+        return true;
+    }
+    return false;
+}
+
+bool WIZnet_Chip::disconnect()
+{
+    return true;
+}
+
+bool WIZnet_Chip::is_connected(int socket)
+{
+    /*
+        if (sreg<uint8_t>(socket, Sn_SR) == SOCK_ESTABLISHED) {
+            return true;
+        }
+    */
+    uint8_t tmpSn_SR;
+    tmpSn_SR = sreg<uint8_t>(socket, Sn_SR);
+    // packet sending is possible, when state is SOCK_CLOSE_WAIT.
+    if ((tmpSn_SR == SOCK_ESTABLISHED) || (tmpSn_SR == SOCK_CLOSE_WAIT)) {
+        return true;
+    }
+    return false;
+}
+
+// Reset the chip & set the buffer
+void WIZnet_Chip::reset()
+{
+	// sw reset
+    reset_pin = 1;
+    reset_pin = 0;
+    wait_us(500); // 500us (w5500)
+    reset_pin = 1;
+    wait_ms(400); // 400ms (w5500)
+
+#if defined(USE_WIZ550IO_MAC)
+    reg_rd_mac(SHAR, mac); // read the MAC address inside the module
+#endif
+
+	// write MAC address inside the WZTOE MAC address register
+    reg_wr_mac(SHAR, mac);
+
+    // set RX and TX buffer size
+#if 0
+    for (int socket = 0; socket < MAX_SOCK_NUM; socket++) {
+        sreg<uint8_t>(socket, Sn_RXBUF_SIZE, 2);
+        sreg<uint8_t>(socket, Sn_TXBUF_SIZE, 2);
+    }
+#endif
+}
+
+
+bool WIZnet_Chip::close(int socket)
+{
+    if (socket < 0) {
+        return false;
+    }
+    // if not connected, return
+    if (sreg<uint8_t>(socket, Sn_SR) == SOCK_CLOSED) {
+        return true;
+    }
+    if (sreg<uint8_t>(socket, Sn_MR) == TCP) {
+        scmd(socket, DISCON);
+    }
+    scmd(socket, CLOSE);
+    sreg<uint8_t>(socket, Sn_IR, 0xff);
+    return true;
+}
+
+int WIZnet_Chip::wait_readable(int socket, int wait_time_ms, int req_size)
+{
+    if (socket < 0) {
+        return -1;
+    }
+    Timer t;
+    t.reset();
+    t.start();
+    while(1) {
+        //int size = sreg<uint16_t>(socket, Sn_RX_RSR);
+        // during the reading Sn_RX_RXR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_RX_RSR);
+            size2 = sreg<uint16_t>(socket, Sn_RX_RSR);
+        } while (size != size2);
+        
+        if (size > req_size) {
+            return size;
+        }
+        if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) {
+            break;
+        }
+    }
+    return -1;
+}
+
+int WIZnet_Chip::wait_writeable(int socket, int wait_time_ms, int req_size)
+{
+    if (socket < 0) {
+        return -1;
+    }
+    Timer t;
+    t.reset();
+    t.start();
+    while(1) {
+        //int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        // during the reading Sn_TX_FSR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_TX_FSR);
+            size2 = sreg<uint16_t>(socket, Sn_TX_FSR);
+        } while (size != size2);
+        
+        if (size > req_size) {
+            return size;
+        }
+        if (wait_time_ms != (-1) && t.read_ms() > wait_time_ms) {
+            break;
+        }
+    }
+    return -1;
+}
+
+int WIZnet_Chip::send(int socket, const char * str, int len)
+{
+    if (socket < 0) {
+        return -1;
+    }
+    uint16_t ptr = sreg<uint16_t>(socket, Sn_TX_WR);
+    uint8_t cntl_byte = (0x14 + (socket << 5));
+    spi_write(ptr, cntl_byte, (uint8_t*)str, len);
+    sreg<uint16_t>(socket, Sn_TX_WR, ptr + len);
+    scmd(socket, SEND);
+    uint8_t tmp_Sn_IR;
+    while (( (tmp_Sn_IR = sreg<uint8_t>(socket, Sn_IR)) & INT_SEND_OK) != INT_SEND_OK) {
+        // @Jul.10, 2014 fix contant name, and udp sendto function.
+        switch (sreg<uint8_t>(socket, Sn_SR)) {
+            case SOCK_CLOSED :
+                close(socket);
+                return 0;
+                //break;
+            case SOCK_UDP :
+                // ARP timeout is possible.
+                if ((tmp_Sn_IR & INT_TIMEOUT) == INT_TIMEOUT) {
+                    sreg<uint8_t>(socket, Sn_IR, INT_TIMEOUT);
+                    return 0;
+                }
+                break;
+            default :
+                break;
+        }
+    }
+    /*
+        while ((sreg<uint8_t>(socket, Sn_IR) & INT_SEND_OK) != INT_SEND_OK) {
+            if (sreg<uint8_t>(socket, Sn_SR) == CLOSED) {
+                close(socket);
+                return 0;
+            }
+        }
+    */
+    sreg<uint8_t>(socket, Sn_IR, INT_SEND_OK);
+
+    return len;
+}
+
+int WIZnet_Chip::recv(int socket, char* buf, int len)
+{
+    if (socket < 0) {
+        return -1;
+    }
+    uint16_t ptr = sreg<uint16_t>(socket, Sn_RX_RD);
+    uint8_t cntl_byte = (0x18 + (socket << 5));
+    spi_read(ptr, cntl_byte, (uint8_t*)buf, len);
+    sreg<uint16_t>(socket, Sn_RX_RD, ptr + len);
+    scmd(socket, RECV);
+    return len;
+}
+
+int WIZnet_Chip::new_socket()
+{
+    for(int s = 0; s < MAX_SOCK_NUM; s++) {
+        if (sreg<uint8_t>(s, Sn_SR) == SOCK_CLOSED) {
+            return s;
+        }
+    }
+    return -1;
+}
+
+uint16_t WIZnet_Chip::new_port()
+{
+    uint16_t port = rand();
+    port |= 49152;
+    return port;
+}
+
+void WIZnet_Chip::scmd(int socket, Command cmd)
+{
+    sreg<uint8_t>(socket, Sn_CR, cmd);
+    while(sreg<uint8_t>(socket, Sn_CR));
+}
+
+void WIZnet_Chip::spi_write(uint16_t addr, uint8_t cb, const uint8_t *buf, uint16_t len)
+{
+    cs = 0;
+    spi->write(addr >> 8);
+    spi->write(addr & 0xff);
+    spi->write(cb);
+    for(int i = 0; i < len; i++) {
+        spi->write(buf[i]);
+    }
+    cs = 1;
+
+#if DBG_SPI
+    debug("[SPI]W %04x(%02x %d)", addr, cb, len);
+    for(int i = 0; i < len; i++) {
+        debug(" %02x", buf[i]);
+        if (i > 16) {
+            debug(" ...");
+            break;
+        }
+    }
+    debug("\r\n");
+#endif
+}
+
+void WIZnet_Chip::spi_read(uint16_t addr, uint8_t cb, uint8_t *buf, uint16_t len)
+{
+    cs = 0;
+    spi->write(addr >> 8);
+    spi->write(addr & 0xff);
+    spi->write(cb);
+    for(int i = 0; i < len; i++) {
+        buf[i] = spi->write(0);
+    }
+    cs = 1;
+
+#if DBG_SPI
+    debug("[SPI]R %04x(%02x %d)", addr, cb, len);
+    for(int i = 0; i < len; i++) {
+        debug(" %02x", buf[i]);
+        if (i > 16) {
+            debug(" ...");
+            break;
+        }
+    }
+    debug("\r\n");
+    if ((addr&0xf0ff)==0x4026 || (addr&0xf0ff)==0x4003) {
+        wait_ms(200);
+    }
+#endif
+}
+
+uint32_t str_to_ip(const char* str)
+{
+    uint32_t ip = 0;
+    char* p = (char*)str;
+    for(int i = 0; i < 4; i++) {
+        ip |= atoi(p);
+        p = strchr(p, '.');
+        if (p == NULL) {
+            break;
+        }
+        ip <<= 8;
+        p++;
+    }
+    return ip;
+}
+
+void printfBytes(char* str, uint8_t* buf, int len)
+{
+    printf("%s %d:", str, len);
+    for(int i = 0; i < len; i++) {
+        printf(" %02x", buf[i]);
+    }
+    printf("\n");
+}
+
+void printHex(uint8_t* buf, int len)
+{
+    for(int i = 0; i < len; i++) {
+        if ((i%16) == 0) {
+            printf("%p", buf+i);
+        }
+        printf(" %02x", buf[i]);
+        if ((i%16) == 15) {
+            printf("\n");
+        }
+    }
+    printf("\n");
+}
+
+void debug_hex(uint8_t* buf, int len)
+{
+    for(int i = 0; i < len; i++) {
+        if ((i%16) == 0) {
+            debug("%p", buf+i);
+        }
+        debug(" %02x", buf[i]);
+        if ((i%16) == 15) {
+            debug("\n");
+        }
+    }
+    debug("\n");
+}
+
+#endif