+#if !BUILD_ZY1000_MASTER || BUILD_ECOSBOARD
+static int tcp_ip = -1;
+
+/* Write large packets if we can */
+static size_t out_pos;
+static uint8_t out_buffer[16384];
+static size_t in_pos;
+static size_t in_write;
+static uint8_t in_buffer[16384];
+
+static bool flush_writes(void)
+{
+ bool ok = (write(tcp_ip, out_buffer, out_pos) == (int)out_pos);
+ out_pos = 0;
+ return ok;
+}
+
+static bool writeLong(uint32_t l)
+{
+ int i;
+ for (i = 0; i < 4; i++)
+ {
+ uint8_t c = (l >> (i*8))&0xff;
+ out_buffer[out_pos++] = c;
+ if (out_pos >= sizeof(out_buffer))
+ {
+ if (!flush_writes())
+ {
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+static bool readLong(uint32_t *out_data)
+{
+ if (out_pos > 0)
+ {
+ if (!flush_writes())
+ {
+ return false;
+ }
+ }
+
+ uint32_t data = 0;
+ int i;
+ for (i = 0; i < 4; i++)
+ {
+ uint8_t c;
+ if (in_pos == in_write)
+ {
+ /* read more */
+ int t;
+ t = read(tcp_ip, in_buffer, sizeof(in_buffer));
+ if (t < 1)
+ {
+ return false;
+ }
+ in_write = (size_t) t;
+ in_pos = 0;
+ }
+ c = in_buffer[in_pos++];
+
+ data |= (c << (i*8));
+ }
+ *out_data = data;
+ return true;
+}
+#endif
+
+enum ZY1000_CMD
+{
+ ZY1000_CMD_POKE = 0x0,
+ ZY1000_CMD_PEEK = 0x8,
+ ZY1000_CMD_SLEEP = 0x1,
+ ZY1000_CMD_WAITIDLE = 2
+};
+
+
+#if !BUILD_ZY1000_MASTER
+
+#include <sys/socket.h> /* for socket(), connect(), send(), and recv() */
+#include <arpa/inet.h> /* for sockaddr_in and inet_addr() */
+
+/* We initialize this late since we need to know the server address
+ * first.
+ */
+static void tcpip_open(void)
+{
+ if (tcp_ip >= 0)
+ return;
+
+ struct sockaddr_in echoServAddr; /* Echo server address */
+
+ /* Create a reliable, stream socket using TCP */
+ if ((tcp_ip = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
+ {
+ fprintf(stderr, "Failed to connect to zy1000 server\n");
+ exit(-1);
+ }
+
+ /* Construct the server address structure */
+ memset(&echoServAddr, 0, sizeof(echoServAddr)); /* Zero out structure */
+ echoServAddr.sin_family = AF_INET; /* Internet address family */
+ echoServAddr.sin_addr.s_addr = inet_addr(tcp_server); /* Server IP address */
+ echoServAddr.sin_port = htons(7777); /* Server port */
+
+ /* Establish the connection to the echo server */
+ if (connect(tcp_ip, (struct sockaddr *) &echoServAddr, sizeof(echoServAddr)) < 0)
+ {
+ fprintf(stderr, "Failed to connect to zy1000 server\n");
+ exit(-1);
+ }
+
+ int flag = 1;
+ setsockopt(tcp_ip, /* socket affected */
+ IPPROTO_TCP, /* set option at TCP level */
+ TCP_NODELAY, /* name of option */
+ (char *)&flag, /* the cast is historical cruft */
+ sizeof(int)); /* length of option value */
+
+}
+
+
+/* send a poke */
+void zy1000_tcpout(uint32_t address, uint32_t data)
+{
+ tcpip_open();
+ if (!writeLong((ZY1000_CMD_POKE << 24) | address)||
+ !writeLong(data))
+ {
+ fprintf(stderr, "Could not write to zy1000 server\n");
+ exit(-1);
+ }
+}
+
+/* By sending the wait to the server, we avoid a readback
+ * of status. Radically improves performance for this operation
+ * with long ping times.
+ */
+void waitIdle(void)
+{
+ tcpip_open();
+ if (!writeLong((ZY1000_CMD_WAITIDLE << 24)))
+ {
+ fprintf(stderr, "Could not write to zy1000 server\n");
+ exit(-1);
+ }
+}
+
+uint32_t zy1000_tcpin(uint32_t address)
+{
+ tcpip_open();
+
+ zy1000_flush_readqueue();
+
+ uint32_t data;
+ if (!writeLong((ZY1000_CMD_PEEK << 24) | address)||
+ !readLong(&data))
+ {
+ fprintf(stderr, "Could not read from zy1000 server\n");
+ exit(-1);
+ }
+ return data;
+}
+
+int interface_jtag_add_sleep(uint32_t us)
+{
+ tcpip_open();
+ if (!writeLong((ZY1000_CMD_SLEEP << 24))||
+ !writeLong(us))
+ {
+ fprintf(stderr, "Could not read from zy1000 server\n");
+ exit(-1);
+ }
+ return ERROR_OK;
+}
+
+/* queue a readback */
+#define readqueue_size 16384
+static struct
+{
+ uint8_t *dest;
+ int bits;
+} readqueue[readqueue_size];
+
+static int readqueue_pos = 0;
+
+/* flush the readqueue, this means reading any data that
+ * we're expecting and store them into the final position
+ */
+void zy1000_flush_readqueue(void)
+{
+ if (readqueue_pos == 0)
+ {
+ /* simply debugging by allowing easy breakpoints when there
+ * is something to do. */
+ return;
+ }
+ int i;
+ tcpip_open();
+ for (i = 0; i < readqueue_pos; i++)
+ {
+ uint32_t value;
+ if (!readLong(&value))
+ {
+ fprintf(stderr, "Could not read from zy1000 server\n");
+ exit(-1);
+ }
+
+ uint8_t *in_value = readqueue[i].dest;
+ int k = readqueue[i].bits;
+
+ // we're shifting in data to MSB, shift data to be aligned for returning the value
+ value >>= 32-k;
+
+ for (int l = 0; l < k; l += 8)
+ {
+ in_value[l/8]=(value >> l)&0xff;
+ }
+ }
+ readqueue_pos = 0;
+}
+
+/* By queuing the callback's we avoid flushing the
+read queue until jtag_execute_queue(). This can
+reduce latency dramatically for cases where
+callbacks are used extensively.
+*/
+#define callbackqueue_size 128
+static struct callbackentry
+{
+ jtag_callback_t callback;
+ jtag_callback_data_t data0;
+ jtag_callback_data_t data1;
+ jtag_callback_data_t data2;
+ jtag_callback_data_t data3;
+} callbackqueue[callbackqueue_size];
+
+static int callbackqueue_pos = 0;
+
+void zy1000_jtag_add_callback4(jtag_callback_t callback, jtag_callback_data_t data0, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
+{
+ if (callbackqueue_pos >= callbackqueue_size)
+ {
+ zy1000_flush_callbackqueue();
+ }
+
+ callbackqueue[callbackqueue_pos].callback = callback;
+ callbackqueue[callbackqueue_pos].data0 = data0;
+ callbackqueue[callbackqueue_pos].data1 = data1;
+ callbackqueue[callbackqueue_pos].data2 = data2;
+ callbackqueue[callbackqueue_pos].data3 = data3;
+ callbackqueue_pos++;
+}
+
+static int zy1000_jtag_convert_to_callback4(jtag_callback_data_t data0, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
+{
+ ((jtag_callback1_t)data1)(data0);
+ return ERROR_OK;
+}
+
+void zy1000_jtag_add_callback(jtag_callback1_t callback, jtag_callback_data_t data0)
+{
+ zy1000_jtag_add_callback4(zy1000_jtag_convert_to_callback4, data0, (jtag_callback_data_t)callback, 0, 0);
+}
+
+void zy1000_flush_callbackqueue(void)
+{
+ /* we have to flush the read queue so we have access to
+ the data the callbacks will use
+ */
+ zy1000_flush_readqueue();
+ int i;
+ for (i = 0; i < callbackqueue_pos; i++)
+ {
+ struct callbackentry *entry = &callbackqueue[i];
+ jtag_set_error(entry->callback(entry->data0, entry->data1, entry->data2, entry->data3));
+ }
+ callbackqueue_pos = 0;
+}
+
+static void writeShiftValue(uint8_t *data, int bits)
+{
+ waitIdle();
+
+ if (!writeLong((ZY1000_CMD_PEEK << 24) | (ZY1000_JTAG_BASE + 0xc)))
+ {
+ fprintf(stderr, "Could not read from zy1000 server\n");
+ exit(-1);
+ }
+
+ if (readqueue_pos >= readqueue_size)
+ {
+ zy1000_flush_readqueue();
+ }
+
+ readqueue[readqueue_pos].dest = data;
+ readqueue[readqueue_pos].bits = bits;
+ readqueue_pos++;
+}
+
+#else
+
+static void writeShiftValue(uint8_t *data, int bits)
+{
+ uint32_t value;
+ waitIdle();
+ ZY1000_PEEK(ZY1000_JTAG_BASE + 0xc, value);
+ VERBOSE(LOG_INFO("getShiftValue %08x", value));
+
+ // data in, LSB to MSB
+ // we're shifting in data to MSB, shift data to be aligned for returning the value
+ value >>= 32 - bits;
+
+ for (int l = 0; l < bits; l += 8)
+ {
+ data[l/8]=(value >> l)&0xff;
+ }
+}
+
+#endif
+
+#if BUILD_ECOSBOARD
+static char tcpip_stack[2048];
+static cyg_thread tcpip_thread_object;
+static cyg_handle_t tcpip_thread_handle;
+
+static char watchdog_stack[2048];
+static cyg_thread watchdog_thread_object;
+static cyg_handle_t watchdog_thread_handle;
+
+/* Infinite loop peeking & poking */
+static void tcpipserver(void)
+{
+ for (;;)
+ {
+ uint32_t address;
+ if (!readLong(&address))
+ return;
+ enum ZY1000_CMD c = (address >> 24) & 0xff;
+ address &= 0xffffff;
+ switch (c)
+ {
+ case ZY1000_CMD_POKE:
+ {
+ uint32_t data;
+ if (!readLong(&data))
+ return;
+ address &= ~0x80000000;
+ ZY1000_POKE(address + ZY1000_JTAG_BASE, data);
+ break;
+ }
+ case ZY1000_CMD_PEEK:
+ {
+ uint32_t data;
+ ZY1000_PEEK(address + ZY1000_JTAG_BASE, data);
+ if (!writeLong(data))
+ return;
+ break;
+ }
+ case ZY1000_CMD_SLEEP:
+ {
+ uint32_t data;
+ if (!readLong(&data))
+ return;
+ jtag_sleep(data);
+ break;
+ }
+ case ZY1000_CMD_WAITIDLE:
+ {
+ waitIdle();
+ break;
+ }
+ default:
+ return;
+ }
+ }
+}
+
+
+static void tcpip_server(cyg_addrword_t data)
+{
+ int so_reuseaddr_option = 1;
+
+ int fd;
+ if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+ {
+ LOG_ERROR("error creating socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
+ sizeof(int));
+
+ struct sockaddr_in sin;
+ unsigned int address_size;
+ address_size = sizeof(sin);
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
+ sin.sin_port = htons(7777);
+
+ if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
+ {
+ LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ if (listen(fd, 1) == -1)
+ {
+ LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+
+ for (;;)
+ {
+ tcp_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
+ if (tcp_ip < 0)
+ {
+ continue;
+ }
+
+ int flag = 1;
+ setsockopt(tcp_ip, /* socket affected */
+ IPPROTO_TCP, /* set option at TCP level */
+ TCP_NODELAY, /* name of option */
+ (char *)&flag, /* the cast is historical cruft */
+ sizeof(int)); /* length of option value */
+
+ bool save_poll = jtag_poll_get_enabled();
+
+ /* polling will screw up the "connection" */
+ jtag_poll_set_enabled(false);
+
+ tcpipserver();
+
+ jtag_poll_set_enabled(save_poll);
+
+ close(tcp_ip);
+
+ }
+ close(fd);
+
+}
+
+#ifdef WATCHDOG_BASE
+/* If we connect to port 8888 we must send a char every 10s or the board resets itself */
+static void watchdog_server(cyg_addrword_t data)
+{
+ int so_reuseaddr_option = 1;
+
+ int fd;
+ if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+ {
+ LOG_ERROR("error creating socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
+ sizeof(int));
+
+ struct sockaddr_in sin;
+ unsigned int address_size;
+ address_size = sizeof(sin);
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
+ sin.sin_port = htons(8888);
+
+ if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
+ {
+ LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ if (listen(fd, 1) == -1)
+ {
+ LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+
+ for (;;)
+ {
+ int watchdog_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
+
+ /* Start watchdog, must be reset every 10 seconds. */
+ HAL_WRITE_UINT32(WATCHDOG_BASE + 4, 4);
+
+ if (watchdog_ip < 0)
+ {
+ LOG_ERROR("couldn't open watchdog socket: %s", strerror(errno));
+ exit(-1);
+ }
+
+ int flag = 1;
+ setsockopt(watchdog_ip, /* socket affected */
+ IPPROTO_TCP, /* set option at TCP level */
+ TCP_NODELAY, /* name of option */
+ (char *)&flag, /* the cast is historical cruft */
+ sizeof(int)); /* length of option value */
+
+
+ char buf;
+ for (;;)
+ {
+ if (read(watchdog_ip, &buf, 1) == 1)
+ {
+ /* Reset timer */
+ HAL_WRITE_UINT32(WATCHDOG_BASE + 8, 0x1234);
+ /* Echo so we can telnet in and see that resetting works */
+ write(watchdog_ip, &buf, 1);
+ } else
+ {
+ /* Stop tickling the watchdog, the CPU will reset in < 10 seconds
+ * now.
+ */
+ return;
+ }
+
+ }
+
+ /* Never reached */
+ }
+}
+#endif
+
+#endif
+
+#if BUILD_ZY1000_MASTER
+int interface_jtag_add_sleep(uint32_t us)
+{
+ jtag_sleep(us);
+ return ERROR_OK;
+}
+#endif
+
+#if BUILD_ZY1000_MASTER && !BUILD_ECOSBOARD
+volatile void *zy1000_jtag_master;
+#include <sys/mman.h>
+#endif
+
+int zy1000_init(void)
+{
+#if BUILD_ECOSBOARD
+ LOG_USER("%s", ZYLIN_OPENOCD_VERSION);
+#elif BUILD_ZY1000_MASTER
+ int fd;
+ if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1)
+ {
+ LOG_ERROR("No access to /dev/mem");
+ return ERROR_FAIL;
+ }
+#ifndef REGISTERS_BASE
+#define REGISTERS_BASE 0x9002000
+#define REGISTERS_SPAN 128
+#endif
+
+ zy1000_jtag_master = mmap(0, REGISTERS_SPAN, PROT_READ | PROT_WRITE, MAP_SHARED, fd, REGISTERS_BASE);
+
+ if(zy1000_jtag_master == (void *) -1)
+ {
+ close(fd);
+ LOG_ERROR("No access to /dev/mem");
+ return ERROR_FAIL;
+ }
+#endif
+
+
+
+ ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x30); // Turn on LED1 & LED2
+
+ setPower(true); // on by default
+
+
+ /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */
+ zy1000_reset(0, 0);
+ zy1000_speed(jtag_get_speed());
+
+
+#if BUILD_ECOSBOARD
+ cyg_thread_create(1, tcpip_server, (cyg_addrword_t) 0, "tcip/ip server",
+ (void *) tcpip_stack, sizeof(tcpip_stack),
+ &tcpip_thread_handle, &tcpip_thread_object);
+ cyg_thread_resume(tcpip_thread_handle);
+#ifdef WATCHDOG_BASE
+ cyg_thread_create(1, watchdog_server, (cyg_addrword_t) 0, "watchdog tcip/ip server",
+ (void *) watchdog_stack, sizeof(watchdog_stack),
+ &watchdog_thread_handle, &watchdog_thread_object);
+ cyg_thread_resume(watchdog_thread_handle);
+#endif
+#endif
+
+ return ERROR_OK;
+}
+
+