+
+/********************************************************************
+ * Support for KT-LINK
+ * JTAG adapter from KRISTECH
+ * http://www.kristech.eu
+ *******************************************************************/
+static int ktlink_init(void)
+{
+ uint8_t buf[3];
+ uint32_t bytes_written;
+ uint8_t swd_en = 0x20; //0x20 SWD disable, 0x00 SWD enable (ADBUS5)
+
+ low_output = 0x08 | swd_en; // value; TMS=1,TCK=0,TDI=0,SWD=swd_en
+ low_direction = 0x3B; // out=1; TCK/TDI/TMS=out,TDO=in,SWD=out,RTCK=in,SRSTIN=in
+
+ // initialize low port
+ buf[0] = 0x80; // command "set data bits low byte"
+ buf[1] = low_output;
+ buf[2] = low_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ nTRST = 0x01;
+ nSRST = 0x02;
+ nTRSTnOE = 0x04;
+ nSRSTnOE = 0x08;
+
+ high_output = 0x80; // turn LED on
+ high_direction = 0xFF; // all outputs
+
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
+ high_output |= nTRSTnOE;
+ high_output &= ~nTRST;
+ } else {
+ high_output &= ~nTRSTnOE;
+ high_output |= nTRST;
+ }
+
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
+ high_output &= ~nSRSTnOE;
+ high_output |= nSRST;
+ } else {
+ high_output |= nSRSTnOE;
+ high_output &= ~nSRST;
+ }
+
+ // initialize high port
+ buf[0] = 0x82; // command "set data bits high byte"
+ buf[1] = high_output; // value
+ buf[2] = high_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+static void ktlink_reset(int trst, int srst)
+{
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+
+ if (trst == 1) {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output &= ~nTRSTnOE;
+ else
+ high_output &= ~nTRST;
+ } else if (trst == 0) {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output |= nTRSTnOE;
+ else
+ high_output |= nTRST;
+ }
+
+ if (srst == 1) {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ high_output &= ~nSRST;
+ else
+ high_output &= ~nSRSTnOE;
+ } else if (srst == 0) {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ high_output |= nSRST;
+ else
+ high_output |= nSRSTnOE;
+ }
+
+ buffer_write(0x82); // command "set data bits high byte"
+ buffer_write(high_output);
+ buffer_write(high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,high_direction);
+}
+
+static void ktlink_blink(void)
+{
+ /* LED connected to ACBUS7 */
+ if (high_output & 0x80)
+ high_output &= 0x7F;
+ else
+ high_output |= 0x80;
+
+ buffer_write(0x82); // command "set data bits high byte"
+ buffer_write(high_output);
+ buffer_write(high_direction);
+}
+
+static int ft2232_register_commands(struct command_context_s* cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "ft2232_device_desc",
+ ft2232_handle_device_desc_command, COMMAND_CONFIG,
+ "the USB device description of the FTDI FT2232 device");
+ register_command(cmd_ctx, NULL, "ft2232_serial",
+ ft2232_handle_serial_command, COMMAND_CONFIG,
+ "the serial number of the FTDI FT2232 device");
+ register_command(cmd_ctx, NULL, "ft2232_layout",
+ ft2232_handle_layout_command, COMMAND_CONFIG,
+ "the layout of the FT2232 GPIO signals used "
+ "to control output-enables and reset signals");
+ register_command(cmd_ctx, NULL, "ft2232_vid_pid",
+ ft2232_handle_vid_pid_command, COMMAND_CONFIG,
+ "the vendor ID and product ID of the FTDI FT2232 device");
+ register_command(cmd_ctx, NULL, "ft2232_latency",
+ ft2232_handle_latency_command, COMMAND_CONFIG,
+ "set the FT2232 latency timer to a new value");
+
+ return ERROR_OK;
+}
+
+
+struct jtag_interface ft2232_interface = {
+ .name = "ft2232",
+ .register_commands = &ft2232_register_commands,
+ .init = &ft2232_init,
+ .quit = &ft2232_quit,
+ .speed = &ft2232_speed,
+ .speed_div = &ft2232_speed_div,
+ .khz = &ft2232_khz,
+ .execute_queue = &ft2232_execute_queue,
+ };