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-rw-r--r--util/Makefile25
-rw-r--r--util/prog.c79
-rw-r--r--util/switch.c65
-rw-r--r--util/term.c40
-rw-r--r--util/tty.c48
-rw-r--r--util/tty.h1
-rw-r--r--util/upload.c123
7 files changed, 381 insertions, 0 deletions
diff --git a/util/Makefile b/util/Makefile
new file mode 100644
index 0000000..f40aac2
--- /dev/null
+++ b/util/Makefile
@@ -0,0 +1,25 @@
+CFLAGS = -I/usr/local/include/libftdi1
+LDFLAGS = -lftdi1
+TARGETS = prog switch upload term
+
+
+%.o: %.c
+ $(CC) $(CFLAGS) -c $<
+
+all: $(TARGETS)
+
+prog: prog.o
+ $(CC) -o $@ $< $(LDFLAGS)
+
+switch: switch.o
+ $(CC) -o $@ $< $(LDFLAGS)
+
+term: term.o tty.o
+ $(CC) -o $@ $^ $(LDFLAGS)
+
+upload: upload.o tty.o
+ $(CC) -o $@ $^ $(LDFLAGS)
+
+clean:
+ rm -f *.o
+ rm -f $(TARGETS)
diff --git a/util/prog.c b/util/prog.c
new file mode 100644
index 0000000..0227682
--- /dev/null
+++ b/util/prog.c
@@ -0,0 +1,79 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ftdi.h>
+
+#define FTDI_MAX_EEPROM_SIZE 256
+
+int main(int argc, char *argv[]) {
+ int ret;
+ int val;
+ struct ftdi_context *ftdi;
+ struct ftdi_version_info version;
+ unsigned char buf[FTDI_MAX_EEPROM_SIZE];
+
+ if ((ftdi = ftdi_new()) == 0) {
+ fprintf(stderr, "ftdi_new failed\n");
+ return EXIT_FAILURE;
+ }
+
+ version = ftdi_get_library_version();
+ printf("Initialized libftdi %s (major: %d, minor: %d, micro: %d, snapshot ver: %s)\n",
+ version.version_str, version.major, version.minor, version.micro,
+ version.snapshot_str);
+
+ if ((ret = ftdi_usb_open(ftdi, 0x0403, 0x6015)) < 0) {
+ fprintf(stderr, "Unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
+ ftdi_free(ftdi);
+ return EXIT_FAILURE;
+ }
+
+ ret = ftdi_read_eeprom(ftdi);
+ if (ret < 0) goto ftdi_fin;
+
+ ret = ftdi_eeprom_decode(ftdi, 1);
+ if (ret < 0) goto ftdi_fin;
+
+ ftdi_get_eeprom_value(ftdi, SELF_POWERED, &val);
+ printf("POWER: %x\n", val);
+ ftdi_get_eeprom_value(ftdi, CBUS_FUNCTION_0, &val);
+ printf("CBUS0: %d\n", val);
+ ftdi_get_eeprom_value(ftdi, CBUS_FUNCTION_1, &val);
+ printf("CBUS1: %d\n", val);
+ ftdi_get_eeprom_value(ftdi, CBUS_FUNCTION_2, &val);
+ printf("CBUS2: %d\n", val);
+ ftdi_get_eeprom_value(ftdi, CBUS_FUNCTION_3, &val);
+ printf("CBUS3: %d\n", val);
+
+ ftdi_set_eeprom_value(ftdi, SELF_POWERED, 1);
+ ftdi_set_eeprom_value(ftdi, CBUS_FUNCTION_0, CBUSX_PWREN);
+ ftdi_set_eeprom_value(ftdi, CBUS_FUNCTION_1, CBUSX_IOMODE);
+ /* next rev hw
+ ftdi_set_eeprom_value(ftdi, CBUS_FUNCTION_3, CBUSX_VBUS_SENSE);
+ */
+ ftdi_set_eeprom_value(ftdi, CBUS_FUNCTION_2, CBUSX_TRISTATE);
+ ftdi_set_eeprom_value(ftdi, CBUS_FUNCTION_3, CBUSX_TRISTATE);
+
+ ret = ftdi_eeprom_build(ftdi);
+ if (ret < 0) goto ftdi_fin;
+
+ ret = ftdi_get_eeprom_buf(ftdi, buf, FTDI_MAX_EEPROM_SIZE);
+ if (ret < 0) goto ftdi_fin;
+
+ printf("MISC: %x\n", *buf);
+
+ if ((argc > 1) && (strcmp(argv[1], "do") == 0)) {
+ ret = ftdi_write_eeprom(ftdi);
+ if (ret < 0) goto ftdi_fin;
+ }
+
+ ret = ftdi_usb_close(ftdi);
+
+ftdi_fin:
+ if (ret < 0) {
+ fprintf(stderr, "ERR: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
+ }
+ ftdi_free(ftdi);
+
+ return ret < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/util/switch.c b/util/switch.c
new file mode 100644
index 0000000..2fc0eb6
--- /dev/null
+++ b/util/switch.c
@@ -0,0 +1,65 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ftdi.h>
+
+#define DEV_FE310 1
+#define DEV_ESP32 2
+
+void usage(char *p) {
+ fprintf(stderr, "Usage: %s fe310|esp32\n", p);
+ exit(1);
+}
+
+int main(int argc, char *argv[]) {
+ int dev;
+ int ret;
+ struct ftdi_context *ftdi;
+
+ if (argc != 2) {
+ usage(argv[0]);
+ }
+ if (strcmp(argv[1], "fe310") == 0) {
+ dev = DEV_FE310;
+ } else if (strcmp(argv[1], "esp32") == 0) {
+ dev = DEV_ESP32;
+ } else {
+ usage(argv[0]);
+ }
+
+ if ((ftdi = ftdi_new()) == 0) {
+ fprintf(stderr, "ftdi_new failed\n");
+ return EXIT_FAILURE;
+ }
+
+ if ((ret = ftdi_usb_open(ftdi, 0x0403, 0x6015)) < 0) {
+ fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
+ ftdi_free(ftdi);
+ return EXIT_FAILURE;
+ }
+
+ switch (dev) {
+ case DEV_FE310: {
+ printf("Switch to fe310\n");
+ ret = ftdi_set_bitmode(ftdi, 0x20, BITMODE_CBUS);
+ break;
+ }
+
+ case DEV_ESP32: {
+ printf("Switch to esp32\n");
+ ret = ftdi_set_bitmode(ftdi, 0x00, BITMODE_CBUS);
+ break;
+ }
+ }
+ if (ret < 0) goto ftdi_fin;
+
+ ret = ftdi_usb_close(ftdi);
+
+ftdi_fin:
+ if (ret < 0) {
+ fprintf(stderr, "ERR: %d (%s)\n", ret, ftdi_get_error_string(ftdi));
+ }
+ ftdi_free(ftdi);
+
+ return ret < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/util/term.c b/util/term.c
new file mode 100644
index 0000000..a9861d5
--- /dev/null
+++ b/util/term.c
@@ -0,0 +1,40 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "tty.h"
+
+void usage(char *p) {
+ fprintf(stderr, "Usage: %s <tty>\n", p);
+ exit(1);
+}
+
+int main(int argc, char *argv[]) {
+ int tty_fd;
+
+ if (argc != 2) {
+ usage(argv[0]);
+ }
+
+ tty_fd = tty_open(argv[1]);
+ if (tty_fd < 0) {
+ fprintf(stderr, "ERROR %i: %s\n", errno, strerror(errno));
+ return 1;
+ }
+
+ while (1) {
+ char buf[256];
+ int rv;
+
+ rv = read(tty_fd, buf, sizeof(buf));
+ if (rv < 0) continue;
+
+ write(STDOUT_FILENO, buf, rv);
+ fflush(stdout);
+ }
+}
diff --git a/util/tty.c b/util/tty.c
new file mode 100644
index 0000000..be56b44
--- /dev/null
+++ b/util/tty.c
@@ -0,0 +1,48 @@
+#include <stdlib.h>
+
+#include <fcntl.h>
+#include <termios.h>
+#include <unistd.h>
+
+int tty_open(char *tty_fn) {
+ struct termios tty;
+ int tty_fd;
+ int rv;
+
+ tty_fd = open(tty_fn, O_RDWR);
+ if (tty_fd < 0) return tty_fd;
+
+ rv = tcgetattr(tty_fd, &tty);
+ if (rv) return -1;
+
+ tty.c_cflag &= ~PARENB; // No parity
+ tty.c_cflag &= ~CSTOPB; // One stop bit
+ tty.c_cflag &= ~CSIZE; // Clear all bits that set the data size
+ tty.c_cflag |= CS8; // 8 bits per byte
+ tty.c_cflag &= ~CRTSCTS; // Disable RTS/CTS hw flow control
+ tty.c_cflag |= (CREAD | CLOCAL); // Turn on READ & ignore ctrl lines (CLOCAL = 1)
+
+ tty.c_lflag &= ~ICANON;
+ tty.c_lflag &= ~(ECHO | ECHOE |ECHONL); // Disable echo
+ tty.c_lflag &= ~ISIG; // Disable interpretation of INTR, QUIT and SUSP signals
+ tty.c_iflag &= ~(IXON | IXOFF | IXANY); // Turn off sw flow ctrl
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL); // Disable any special handling of received bytes
+
+ tty.c_oflag &= ~OPOST; // Prevent special interpretation of output bytes (e.g. newline chars)
+ tty.c_oflag &= ~ONLCR; // Prevent conversion of newline to carriage return/line feed
+#ifndef __linux__
+ tty.c_oflag &= ~OXTABS; // Prevent conversion of tabs to spaces (NOT PRESENT ON LINUX)
+ tty.c_oflag &= ~ONOEOT; // Prevent removal of C-d chars (0x004) in output (NOT PRESENT ON LINUX)
+#endif
+
+ tty.c_cc[VTIME] = 10; // Wait for up to 1s (10 deciseconds), returning as soon as any data is received.
+ tty.c_cc[VMIN] = 0;
+
+ cfsetispeed(&tty, B115200);
+ cfsetospeed(&tty, B115200);
+
+ rv = tcsetattr(tty_fd, TCSANOW, &tty);
+ if (rv) return -1;
+
+ return tty_fd;
+};
diff --git a/util/tty.h b/util/tty.h
new file mode 100644
index 0000000..4216c4d
--- /dev/null
+++ b/util/tty.h
@@ -0,0 +1 @@
+int tty_open(char *tty_fn);
diff --git a/util/upload.c b/util/upload.c
new file mode 100644
index 0000000..5eb5d81
--- /dev/null
+++ b/util/upload.c
@@ -0,0 +1,123 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "tty.h"
+
+static const uint8_t magic[] =
+ {0x2D, 0xC0, 0x3B, 0x5F, 0xEA, 0xE3, 0x1A, 0x3A, 0x83, 0x11, 0x6A, 0x33, 0x98, 0x46, 0x1C, 0x47};
+
+#define ACK 0x05
+#define NACK 0x0A
+#define BLK_SIZE 256
+
+void usage(char *p) {
+ fprintf(stderr, "Usage: %s <tty> <firmware>\n", p);
+ exit(1);
+}
+
+uint32_t crc32x(unsigned char *buf, size_t len, uint32_t crc) {
+ int i;
+
+ crc = ~crc;
+ while (len--) {
+ crc ^= *buf++;
+ for (i=0; i<8; i++) {
+ uint32_t t = ~((crc & 1) - 1);
+ crc = (crc >> 1) ^ (0xEDB88320 & t);
+ }
+ }
+
+ return ~crc;
+}
+
+void set_buffer(uint32_t addr, uint8_t *buf) {
+ uint32_t crc32;
+
+ buf[0] = addr >> 24;
+ buf[1] = addr >> 16;
+ buf[2] = addr >> 8;
+ buf[3] = addr;
+ crc32 = crc32x(buf, BLK_SIZE + sizeof(uint32_t), 0xffffffff);
+ buf[BLK_SIZE + 4] = crc32 >> 24;
+ buf[BLK_SIZE + 5] = crc32 >> 16;
+ buf[BLK_SIZE + 6] = crc32 >> 8;
+ buf[BLK_SIZE + 7] = crc32;
+}
+
+static void _write(int fd, const uint8_t *buf, size_t size) {
+ int rv = 0;
+
+ do {
+ rv += write(fd, buf + rv, size - rv);
+ } while (rv != size);
+}
+
+int main(int argc, char *argv[]) {
+ int tty_fd, fw_fd;
+ uint8_t buf[BLK_SIZE + 2 * sizeof(uint32_t)];
+ uint32_t addr;
+ int rv;
+
+ if (argc != 3) {
+ usage(argv[0]);
+ }
+
+ tty_fd = tty_open(argv[1]);
+ if (tty_fd < 0) {
+ fprintf(stderr, "TTY OPEN ERROR %i: %s\n", errno, strerror(errno));
+ return 1;
+ }
+
+ fw_fd = open(argv[2], O_RDONLY);
+ if (fw_fd < 0) {
+ fprintf(stderr, "FW OPEN ERROR %i: %s\n", errno, strerror(errno));
+ return 1;
+ }
+
+ while ((rv = read(tty_fd, buf, sizeof(buf))));
+
+ _write(tty_fd, magic, sizeof(magic));
+ *buf = NACK;
+ read(tty_fd, buf, 1);
+ if (*buf != ACK) {
+ fprintf(stderr, "CONNECT ERROR: %x\n", *buf);
+ return 1;
+ }
+ printf("CONNECTED\n");
+
+ addr = 0;
+ memset(buf, 0xff, sizeof(buf));
+ do {
+ rv = read(fw_fd, buf + sizeof(uint32_t), BLK_SIZE);
+ if (rv < 0) {
+ fprintf(stderr, "FW READ ERROR %i: %s\n", errno, strerror(errno));
+ return 1;
+ }
+ if (rv == 0) {
+ addr = -1;
+ }
+
+ set_buffer(addr, buf);
+ do {
+ _write(tty_fd, buf, sizeof(buf));
+ *buf = NACK;
+ read(tty_fd, buf, 1);
+ if (*buf == NACK) {
+ fprintf(stderr, "NACK...\n");
+ }
+ } while (*buf != ACK);
+ addr += BLK_SIZE;
+ memset(buf, 0xff, sizeof(buf));
+ } while (rv);
+
+ close(tty_fd);
+ close(fw_fd);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 07:49:45 +0000