/***************************************************************************
- * Copyright (C) 2004 by Dominic Rath *
+ * Copyright (C) 2004, 2006 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
+
+/* FT2232 access library includes */
+#if BUILD_FT2232_FTD2XX == 1
#include <ftd2xx.h>
+#elif BUILD_FT2232_LIBFTDI == 1
+#include <ftdi.h>
+#endif
#include <sys/time.h>
#include <time.h>
#define _DEBUG_USB_COMMS_
#endif
-/* enable this to work around ftd2xx deadlock
- */
-#if 0
-#define _FTD2XX_QUEUE_DELAY_
-#endif
-
-int ftd2xx_execute_queue(void);
+int ft2232_execute_queue(void);
-int ftd2xx_speed(int speed);
-int ftd2xx_register_commands(struct command_context_s *cmd_ctx);
-int ftd2xx_init(void);
-int ftd2xx_quit(void);
+int ft2232_speed(int speed);
+int ft2232_register_commands(struct command_context_s *cmd_ctx);
+int ft2232_init(void);
+int ft2232_quit(void);
-int ftd2xx_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ftd2xx_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int ftd2xx_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-char *ftd2xx_device_desc = NULL;
-char *ftd2xx_layout = NULL;
-u16 ftd2xx_vid = 0x0403;
-u16 ftd2xx_pid = 0x6010;
+char *ft2232_device_desc = NULL;
+char *ft2232_layout = NULL;
+u16 ft2232_vid = 0x0403;
+u16 ft2232_pid = 0x6010;
-typedef struct ftd2xx_layout_s
+typedef struct ft2232_layout_s
{
char* name;
int(*init)(void);
void(*reset)(int trst, int srst);
-} ftd2xx_layout_t;
+} ft2232_layout_t;
int usbjtag_init(void);
int jtagkey_init(void);
void usbjtag_reset(int trst, int srst);
void jtagkey_reset(int trst, int srst);
-ftd2xx_layout_t ftd2xx_layouts[] =
+ft2232_layout_t ft2232_layouts[] =
{
{"usbjtag", usbjtag_init, usbjtag_reset},
{"jtagkey", jtagkey_init, jtagkey_reset},
static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
-static ftd2xx_layout_t *layout;
+static ft2232_layout_t *layout;
static u8 low_output = 0x0;
static u8 low_direction = 0x0;
static u8 high_output = 0x0;
static u8 high_direction = 0x0;
+
+#if BUILD_FT2232_FTD2XX == 1
static FT_HANDLE ftdih = NULL;
+#elif BUILD_FT2232_LIBFTDI == 1
+static struct ftdi_context ftdic;
+#endif
-static u8 *ftd2xx_buffer = NULL;
-static int ftd2xx_buffer_size = 0;
-static int ftd2xx_read_pointer = 0;
-static int ftd2xx_expect_read = 0;
-#define FTD2XX_BUFFER_SIZE 131072
-#define BUFFER_ADD ftd2xx_buffer[ftd2xx_buffer_size++]
-#define BUFFER_READ ftd2xx_buffer[ftd2xx_read_pointer++]
+static u8 *ft2232_buffer = NULL;
+static int ft2232_buffer_size = 0;
+static int ft2232_read_pointer = 0;
+static int ft2232_expect_read = 0;
+#define FT2232_BUFFER_SIZE 131072
+#define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
+#define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
-jtag_interface_t ftd2xx_interface =
+jtag_interface_t ft2232_interface =
{
- .name = "ftd2xx",
+ .name = "ft2232",
- .execute_queue = ftd2xx_execute_queue,
+ .execute_queue = ft2232_execute_queue,
.support_statemove = 1,
- .speed = ftd2xx_speed,
- .register_commands = ftd2xx_register_commands,
- .init = ftd2xx_init,
- .quit = ftd2xx_quit,
+ .speed = ft2232_speed,
+ .register_commands = ft2232_register_commands,
+ .init = ft2232_init,
+ .quit = ft2232_quit,
};
-int ftd2xx_speed(int speed)
+int ft2232_write(u8 *buf, int size, u32* bytes_written)
{
- u8 buf[3];
+#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
- DWORD bytes_written;
+ DWORD dw_bytes_written;
+ if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
+ {
+ *bytes_written = dw_bytes_written;
+ ERROR("FT_Write returned: %i", status);
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+ else
+ {
+ *bytes_written = dw_bytes_written;
+ return ERROR_OK;
+ }
+#elif BUILD_FT2232_LIBFTDI == 1
+ int retval;
+ if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
+ {
+ *bytes_written = 0;
+ ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+ else
+ {
+ *bytes_written = retval;
+ return ERROR_OK;
+ }
+#endif
+}
+
+int ft2232_read(u8* buf, int size, u32* bytes_read)
+{
+#if BUILD_FT2232_FTD2XX == 1
+ DWORD dw_bytes_read;
+ FT_STATUS status;
+ if ((status = FT_Read(ftdih, buf, size, &dw_bytes_read)) != FT_OK)
+ {
+ *bytes_read = dw_bytes_read;
+ ERROR("FT_Read returned: %i", status);
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+ *bytes_read = dw_bytes_read;
+ return ERROR_OK;
+
+#elif BUILD_FT2232_LIBFTDI == 1
+ int retval;
+ int timeout = 100;
+ *bytes_read = 0;
+
+ while ((*bytes_read < size) && timeout--)
+ {
+ if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
+ {
+ *bytes_read = 0;
+ ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+ *bytes_read += retval;
+ }
+ return ERROR_OK;
+#endif
+}
+
+int ft2232_speed(int speed)
+{
+ u8 buf[3];
+ int retval;
+ u32 bytes_written;
buf[0] = 0x86; /* command "set divisor" */
buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/
buf[2] = (speed >> 8) & 0xff; /* valueH */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- if (((status = FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
+ if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- ERROR("couldn't write to ftdi device: %i", status);
- return status;
+ ERROR("couldn't set FT2232 TCK speed");
+ return retval;
}
return ERROR_OK;
}
-int ftd2xx_register_commands(struct command_context_s *cmd_ctx)
+int ft2232_register_commands(struct command_context_s *cmd_ctx)
{
- register_command(cmd_ctx, NULL, "ftd2xx_device_desc", ftd2xx_handle_device_desc_command,
+ register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "ftd2xx_layout", ftd2xx_handle_layout_command,
+ register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "ftd2xx_vid_pid", ftd2xx_handle_vid_pid_command,
+ register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
COMMAND_CONFIG, NULL);
return ERROR_OK;
}
-void ftd2xx_end_state(state)
+void ft2232_end_state(state)
{
if (tap_move_map[state] != -1)
end_state = state;
}
}
-void ftd2xx_read_scan(enum scan_type type, u8* buffer, int scan_size)
+void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
{
int num_bytes = ((scan_size + 7) / 8);
int bits_left = scan_size;
}
-void ftd2xx_debug_dump_buffer(void)
+void ft2232_debug_dump_buffer(void)
{
int i;
char line[256];
char *line_p = line;
- for (i = 0; i < ftd2xx_buffer_size; i++)
+ for (i = 0; i < ft2232_buffer_size; i++)
{
- line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ftd2xx_buffer[i]);
+ line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
if (i % 16 == 15)
{
DEBUG("%s", line);
DEBUG("%s", line);
}
-int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
+int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
{
jtag_command_t *cmd;
u8 *buffer;
int scan_size;
enum scan_type type;
- FT_STATUS status;
- DWORD bytes_written;
- DWORD bytes_read;
+ int retval;
+ u32 bytes_written;
+ u32 bytes_read;
#ifdef _DEBUG_USB_IO_
struct timeval start, inter, inter2, end;
#endif
#ifdef _DEBUG_USB_COMMS_
- DEBUG("write buffer (size %i):", ftd2xx_buffer_size);
- ftd2xx_debug_dump_buffer();
+ DEBUG("write buffer (size %i):", ft2232_buffer_size);
+ ft2232_debug_dump_buffer();
#endif
#ifdef _DEBUG_USB_IO_
gettimeofday(&start, NULL);
#endif
- if ((status = FT_Write(ftdih, ftd2xx_buffer, ftd2xx_buffer_size, &bytes_written)) != FT_OK)
+ if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
{
- ERROR("couldn't write to ftdi device: %i", status);
+ ERROR("couldn't write MPSSE commands to FT2232");
exit(-1);
}
gettimeofday(&inter, NULL);
#endif
- if (ftd2xx_expect_read)
+ if (ft2232_expect_read)
{
int timeout = 100;
- ftd2xx_buffer_size = 0;
-
-#ifdef _FTD2XX_QUEUE_DELAY_
- DWORD inrxqueue = 0;
- while (inrxqueue < ftd2xx_expect_read)
- {
- FT_GetQueueStatus(ftdih, &inrxqueue);
- if (inrxqueue >= ftd2xx_expect_read)
- break;
- usleep(1000);
- };
-#endif
+ ft2232_buffer_size = 0;
#ifdef _DEBUG_USB_IO_
- gettimeofday(&inter2, NULL);
+ gettimeofday(&inter2, NULL);
#endif
-
- if ((status = FT_Read(ftdih, ftd2xx_buffer, ftd2xx_expect_read, &bytes_read)) != FT_OK)
+
+ if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
{
- ERROR("couldn't read from ftdi device: %i", status);
+ ERROR("couldn't read from FT2232");
exit(-1);
}
-
+
#ifdef _DEBUG_USB_IO_
gettimeofday(&end, NULL);
#endif
- ftd2xx_buffer_size = bytes_read;
+ ft2232_buffer_size = bytes_read;
- if (ftd2xx_expect_read != ftd2xx_buffer_size)
+ if (ft2232_expect_read != ft2232_buffer_size)
{
- ERROR("ftd2xx_expect_read (%i) != ftd2xx_buffer_size (%i) (%i retries)", ftd2xx_expect_read, ftd2xx_buffer_size, 100 - timeout);
- ftd2xx_debug_dump_buffer();
+ ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
+ ft2232_debug_dump_buffer();
exit(-1);
}
#ifdef _DEBUG_USB_COMMS_
- DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ftd2xx_buffer_size);
- ftd2xx_debug_dump_buffer();
+ DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
+ ft2232_debug_dump_buffer();
#endif
}
- ftd2xx_expect_read = 0;
- ftd2xx_read_pointer = 0;
+ ft2232_expect_read = 0;
+ ft2232_read_pointer = 0;
cmd = first;
while (cmd != last)
{
scan_size = jtag_scan_size(cmd->cmd.scan);
buffer = calloc(CEIL(scan_size, 8), 1);
- ftd2xx_read_scan(type, buffer, scan_size);
+ ft2232_read_scan(type, buffer, scan_size);
jtag_read_buffer(buffer, cmd->cmd.scan);
free(buffer);
}
cmd = cmd->next;
}
- ftd2xx_buffer_size = 0;
+ ft2232_buffer_size = 0;
return ERROR_OK;
}
-void ftd2xx_add_pathmove(pathmove_command_t *cmd)
+void ft2232_add_pathmove(pathmove_command_t *cmd)
{
int num_states = cmd->num_states;
u8 tms_byte;
end_state = cur_state;
}
-void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
+void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
{
int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
}
-int ftd2xx_predict_scan_out(int scan_size, enum scan_type type)
+int ft2232_predict_scan_out(int scan_size, enum scan_type type)
{
int predicted_size = 3;
return predicted_size;
}
-int ftd2xx_predict_scan_in(int scan_size, enum scan_type type)
+int ft2232_predict_scan_in(int scan_size, enum scan_type type)
{
int predicted_size = 0;
DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
-int ftd2xx_execute_queue()
+int ft2232_execute_queue()
{
jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
jtag_command_t *first_unsent = cmd; /* next command that has to be sent */
int predicted_size = 0;
int require_send = 0;
- ftd2xx_buffer_size = 0;
- ftd2xx_expect_read = 0;
+ ft2232_buffer_size = 0;
+ ft2232_expect_read = 0;
while (cmd)
{
{
case JTAG_END_STATE:
if (cmd->cmd.end_state->end_state != -1)
- ftd2xx_end_state(cmd->cmd.end_state->end_state);
+ ft2232_end_state(cmd->cmd.end_state->end_state);
break;
case JTAG_RESET:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
- if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
predicted_size += 3;
if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
predicted_size += 3;
- if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
//DEBUG("added TMS scan (no read)");
}
if (cmd->cmd.runtest->end_state != -1)
- ftd2xx_end_state(cmd->cmd.runtest->end_state);
+ ft2232_end_state(cmd->cmd.runtest->end_state);
if (cur_state != end_state)
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
case JTAG_STATEMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
- if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
if (cmd->cmd.statemove->end_state != -1)
- ftd2xx_end_state(cmd->cmd.statemove->end_state);
+ ft2232_end_state(cmd->cmd.statemove->end_state);
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* scan 7 bit */
case JTAG_PATHMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
- if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
- ftd2xx_add_pathmove(cmd->cmd.pathmove);
+ ft2232_add_pathmove(cmd->cmd.pathmove);
require_send = 1;
#ifdef _DEBUG_JTAG_IO_
DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
case JTAG_SCAN:
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
type = jtag_scan_type(cmd->cmd.scan);
- predicted_size = ftd2xx_predict_scan_out(scan_size, type);
- if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ predicted_size = ft2232_predict_scan_out(scan_size, type);
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
DEBUG("ftd2xx buffer size reached, sending queued commands (first_unsent: %x, cmd: %x)", first_unsent, cmd);
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
- ftd2xx_expect_read += ftd2xx_predict_scan_in(scan_size, type);
- //DEBUG("new read size: %i", ftd2xx_expect_read);
+ ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
+ //DEBUG("new read size: %i", ft2232_expect_read);
if (cmd->cmd.scan->end_state != -1)
- ftd2xx_end_state(cmd->cmd.scan->end_state);
- ftd2xx_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
+ ft2232_end_state(cmd->cmd.scan->end_state);
+ ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
require_send = 1;
if (buffer)
free(buffer);
#endif
break;
case JTAG_SLEEP:
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
first_unsent = cmd->next;
jtag_sleep(cmd->cmd.sleep->us);
#ifdef _DEBUG_JTAG_IO_
}
if (require_send > 0)
- ftd2xx_send_and_recv(first_unsent, cmd);
+ ft2232_send_and_recv(first_unsent, cmd);
return ERROR_OK;
}
-int ftd2xx_init(void)
+int ft2232_init(void)
{
u8 latency_timer;
- FT_STATUS status;
- DWORD num_devices;
u8 buf[1];
- DWORD bytes_written;
+ int retval;
+ u32 bytes_written;
- ftd2xx_layout_t *cur_layout = ftd2xx_layouts;
+#if BUILD_FT2232_FTD2XX == 1
+ FT_STATUS status;
+#endif
+
+ ft2232_layout_t *cur_layout = ft2232_layouts;
- if ((ftd2xx_layout == NULL) || (ftd2xx_layout[0] == 0))
+ if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
- ftd2xx_layout = "usbjtag";
- WARNING("No ftd2xx layout specified, using default 'usbjtag'");
+ ft2232_layout = "usbjtag";
+ WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
while (cur_layout->name)
{
- if (strcmp(cur_layout->name, ftd2xx_layout) == 0)
+ if (strcmp(cur_layout->name, ft2232_layout) == 0)
{
layout = cur_layout;
break;
if (!layout)
{
- ERROR("No matching layout found for %s", ftd2xx_layout);
+ ERROR("No matching layout found for %s", ft2232_layout);
return ERROR_JTAG_INIT_FAILED;
}
- if (ftd2xx_device_desc == NULL)
+#if BUILD_FT2232_FTD2XX == 1
+ DEBUG("'ft2232' interface using FTD2XX with '%s' layout", ft2232_layout);
+#elif BUILD_FT2232_LIBFTDI == 1
+ DEBUG("'ft2232' interface using libftdi with '%s' layout", ft2232_layout);
+#endif
+
+ if (ft2232_device_desc == NULL)
{
WARNING("no ftd2xx device description specified, using default 'Dual RS232'");
- ftd2xx_device_desc = "Dual RS232";
+ ft2232_device_desc = "Dual RS232";
}
-
+
+#if BUILD_FT2232_FTD2XX == 1
+
#if IS_WIN32 == 0
- /* Add JTAGkey Vid/Pid to the linux driver */
- if ((status = FT_SetVIDPID(ftd2xx_vid, ftd2xx_pid)) != FT_OK)
+ /* Add non-standard Vid/Pid to the linux driver */
+ if ((status = FT_SetVIDPID(ft2232_vid, ft2232_pid)) != FT_OK)
{
- WARNING("couldn't add %4.4x:%4.4x", ftd2xx_vid, ftd2xx_pid);
+ WARNING("couldn't add %4.4x:%4.4x", ft2232_vid, ft2232_pid);
}
#endif
- if ((status = FT_OpenEx(ftd2xx_device_desc, FT_OPEN_BY_DESCRIPTION, &ftdih)) != FT_OK)
+ if ((status = FT_OpenEx(ft2232_device_desc, FT_OPEN_BY_DESCRIPTION, &ftdih)) != FT_OK)
{
+ DWORD num_devices;
+
ERROR("unable to open ftdi device: %i", status);
status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
if (status == FT_OK)
ERROR("unable to enable bit i/o mode: %i", status);
return ERROR_JTAG_INIT_FAILED;
}
+#elif BUILD_FT2232_LIBFTDI == 1
+ if (ftdi_init(&ftdic) < 0)
+ return ERROR_JTAG_INIT_FAILED;
+
+ /* context, vendor id, product id */
+ if (ftdi_usb_open(&ftdic, ft2232_vid, ft2232_pid) < 0)
+ {
+ ERROR("unable to open ftdi device: %s", ftdic.error_str);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if (ftdi_usb_reset(&ftdic) < 0)
+ {
+ ERROR("unable to reset ftdi device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if (ftdi_set_latency_timer(&ftdic, 2) < 0)
+ {
+ ERROR("unable to set latency timer");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
+ {
+ ERROR("unable to get latency timer");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ else
+ {
+ DEBUG("current latency timer: %i", latency_timer);
+ }
+
+ ftdic.bitbang_mode = 0; /* Reset controller */
+ ftdi_enable_bitbang(&ftdic, 0x0b); /* ctx, JTAG I/O mask */
- ftd2xx_buffer_size = 0;
- ftd2xx_buffer = malloc(FTD2XX_BUFFER_SIZE);
+ ftdic.bitbang_mode = 2; /* MPSSE mode */
+ ftdi_enable_bitbang(&ftdic, 0x0b); /* ctx, JTAG I/O mask */
+#endif
+
+ ft2232_buffer_size = 0;
+ ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
if (layout->init() != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;
- ftd2xx_speed(jtag_speed);
+ ft2232_speed(jtag_speed);
buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
- if (((status = FT_Write(ftdih, buf, 1, &bytes_written)) != FT_OK) || (bytes_written != 1))
+ if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
{
- ERROR("couldn't write to ftdi device: %i", status);
+ ERROR("couldn't write to FT2232 to disable loopback");
return ERROR_JTAG_INIT_FAILED;
}
-
+
+#if BUILD_FT2232_FTD2XX == 1
if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
{
ERROR("error purging ftd2xx device: %i", status);
return ERROR_JTAG_INIT_FAILED;
}
+#elif BUILD_FT2232_LIBFTDI == 1
+ if (ftdi_usb_purge_buffers(&ftdic) < 0)
+ {
+ ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+#endif
return ERROR_OK;
}
int usbjtag_init(void)
{
u8 buf[3];
- FT_STATUS status;
- DWORD bytes_written;
+ u32 bytes_written;
low_output = 0x08;
low_direction = 0x0b;
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- if (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- ERROR("couldn't write to ftdi device: %i", status);
+ ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
return ERROR_JTAG_INIT_FAILED;
}
int jtagkey_init(void)
{
u8 buf[3];
- FT_STATUS status;
- DWORD bytes_written;
+ u32 bytes_written;
low_output = 0x08;
low_direction = 0x1b;
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- if (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- ERROR("couldn't write to ftdi device: %i", status);
+ ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- if (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- ERROR("couldn't write to ftdi device: %i", status);
+ ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
-int ftd2xx_quit(void)
+int ft2232_quit(void)
{
+#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
status = FT_Close(ftdih);
+#elif BUILD_FT2232_LIBFTDI == 1
+ ftdi_disable_bitbang(&ftdic);
+
+ ftdi_usb_close(&ftdic);
+
+ ftdi_deinit(&ftdic);
+#endif
- free(ftd2xx_buffer);
+ free(ft2232_buffer);
return ERROR_OK;
}
-int ftd2xx_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 1)
{
- ftd2xx_device_desc = strdup(args[0]);
+ ft2232_device_desc = strdup(args[0]);
}
else
{
- ERROR("expected exactly one argument to ftd2xx_device_desc <description>");
+ ERROR("expected exactly one argument to ft2232_device_desc <description>");
}
return ERROR_OK;
}
-int ftd2xx_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 0)
return ERROR_OK;
- ftd2xx_layout = malloc(strlen(args[0]) + 1);
- strcpy(ftd2xx_layout, args[0]);
+ ft2232_layout = malloc(strlen(args[0]) + 1);
+ strcpy(ft2232_layout, args[0]);
return ERROR_OK;
}
-int ftd2xx_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc >= 2)
{
- ftd2xx_vid = strtol(args[0], NULL, 0);
- ftd2xx_pid = strtol(args[1], NULL, 0);
+ ft2232_vid = strtol(args[0], NULL, 0);
+ ft2232_pid = strtol(args[1], NULL, 0);
}
else
{
- WARNING("incomplete ftd2xx_vid_pid configuration directive");
+ WARNING("incomplete ft2232_vid_pid configuration directive");
}
return ERROR_OK;
+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2004 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-/* project specific includes */
-#include "log.h"
-#include "types.h"
-#include "jtag.h"
-#include "configuration.h"
-#include "command.h"
-
-/* system includes */
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <usb.h>
-#include <ftdi.h>
-
-#include <sys/time.h>
-#include <time.h>
-
-/* enable this to debug io latency
- */
-#if 0
-#define _DEBUG_USB_IO_
-#endif
-
-int ftdi2232_execute_queue(void);
-
-int ftdi2232_speed(int speed);
-int ftdi2232_register_commands(struct command_context_s *cmd_ctx);
-int ftdi2232_init(void);
-int ftdi2232_quit(void);
-
-enum { FTDI2232_TRST = 0x10, FTDI2232_SRST = 0x40 };
-static u8 discrete_output = 0x0 | FTDI2232_TRST | FTDI2232_SRST;
-static struct ftdi_context ftdic;
-
-static u8 *ftdi2232_buffer = NULL;
-static int ftdi2232_buffer_size = 0;
-static int ftdi2232_read_pointer = 0;
-static int ftdi2232_expect_read = 0;
-#define FTDI2232_BUFFER_SIZE 131072
-#define BUFFER_ADD ftdi2232_buffer[ftdi2232_buffer_size++]
-#define BUFFER_READ ftdi2232_buffer[ftdi2232_read_pointer++]
-
-#define FTDI2232_SAVE_SIZE 1024
-
-int ftdi2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-static u16 ftdi2232_vid = 0x0403;
-static u16 ftdi2232_pid = 0x6010;
-
-jtag_interface_t ftdi2232_interface =
-{
-
- .name = "ftdi2232",
-
- .execute_queue = ftdi2232_execute_queue,
-
- .support_statemove = 1,
-
- .speed = ftdi2232_speed,
- .register_commands = ftdi2232_register_commands,
- .init = ftdi2232_init,
- .quit = ftdi2232_quit,
-};
-
-int ftdi2232_speed(int speed)
-{
- u8 buf[3];
-
- buf[0] = 0x86; /* command "set divisor" */
- buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/
- buf[2] = (speed >> 8) & 0xff; /* valueH */
-
- DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
- ftdi_write_data(&ftdic, buf, 3);
-
- return ERROR_OK;
-}
-
-int ftdi2232_register_commands(struct command_context_s *cmd_ctx)
-{
- register_command(cmd_ctx, NULL, "ftdi2232_vid_pid", ftdi2232_handle_vid_pid_command,
- COMMAND_CONFIG, NULL);
-
- return ERROR_OK;
-}
-
-void ftdi2232_end_state(state)
-{
- if (tap_move_map[state] != -1)
- end_state = state;
- else
- {
- ERROR("BUG: %i is not a valid end state", state);
- exit(-1);
- }
-}
-
-void ftdi2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
-{
- int num_bytes = ((scan_size + 7) / 8);
- int bits_left = scan_size;
- int cur_byte = 0;
-
- while(num_bytes-- > 1)
- {
- buffer[cur_byte] = BUFFER_READ;
- cur_byte++;
- bits_left -= 8;
- }
-
- buffer[cur_byte] = 0x0;
-
- if (bits_left > 1)
- {
- buffer[cur_byte] = BUFFER_READ >> 1;
- }
-
- buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);
-
-}
-
-void ftdi2232_debug_dump_buffer(void)
-{
- int i;
- for (i = 0; i < ftdi2232_buffer_size; i++)
- {
- printf("%2.2x ", ftdi2232_buffer[i]);
- if (i % 16 == 15)
- printf("\n");
- }
- printf("\n");
- fflush(stdout);
-}
-
-int ftdi2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
-{
- jtag_command_t *cmd;
- u8 *buffer;
- int scan_size;
- enum scan_type type;
- int retval;
-
- BUFFER_ADD = 0x87; /* send immediate command */
-
- if (ftdi2232_buffer_size > FTDI2232_SAVE_SIZE)
- {
- ERROR("BUG: ftdi2232_buffer grew beyond %i byte (%i) - this is going to fail", FTDI2232_SAVE_SIZE, ftdi2232_buffer_size);
- }
-
-#ifdef _DEBUG_USB_IO_
- DEBUG("write buffer (size %i):", ftdi2232_buffer_size);
- ftdi2232_debug_dump_buffer();
-#endif
-
- if ((retval = ftdi_write_data(&ftdic, ftdi2232_buffer, ftdi2232_buffer_size)) < 0)
- {
- ERROR("ftdi_write_data returned %i", retval);
- exit(-1);
- }
-
- if (ftdi2232_expect_read)
- {
- int timeout = 100;
- ftdi2232_buffer_size = 0;
-
- while ((ftdi2232_buffer_size < ftdi2232_expect_read) && timeout)
- {
- ftdi2232_buffer_size += ftdi_read_data(&ftdic, ftdi2232_buffer + ftdi2232_buffer_size, FTDI2232_BUFFER_SIZE - ftdi2232_buffer_size);
- timeout--;
- }
-
- if (ftdi2232_expect_read != ftdi2232_buffer_size)
- {
- ERROR("ftdi2232_expect_read (%i) != ftdi2232_buffer_size (%i) (%i retries)", ftdi2232_expect_read, ftdi2232_buffer_size, 100 - timeout);
- ftdi2232_debug_dump_buffer();
-
- exit(-1);
- }
-
-#ifdef _DEBUG_USB_IO_
- DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ftdi2232_buffer_size);
- ftdi2232_debug_dump_buffer();
-#endif
- }
-
- ftdi2232_expect_read = 0;
- ftdi2232_read_pointer = 0;
-
- cmd = first;
- while (cmd != last)
- {
- switch (cmd->type)
- {
- case JTAG_SCAN:
- type = jtag_scan_type(cmd->cmd.scan);
- if (type != SCAN_OUT)
- {
- scan_size = jtag_scan_size(cmd->cmd.scan);
- buffer = calloc(CEIL(scan_size, 8), 1);
- ftdi2232_read_scan(type, buffer, scan_size);
- jtag_read_buffer(buffer, cmd->cmd.scan);
- free(buffer);
- }
- break;
- default:
- break;
- }
- cmd = cmd->next;
- }
-
- ftdi2232_buffer_size = 0;
-
- return ERROR_OK;
-}
-
-void ftdi2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
-{
- int num_bytes = (scan_size + 7) / 8;
- int bits_left = scan_size;
- int cur_byte = 0;
- int last_bit;
-
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- if (ir_scan)
- {
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
- cur_state = TAP_SI;
- }
- else
- {
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
- cur_state = TAP_SD;
- }
- //DEBUG("added TMS scan (no read)");
-
- /* add command for complete bytes */
- if (num_bytes > 1)
- {
- if (type == SCAN_IO)
- {
- /* Clock Data Bytes In and Out LSB First */
- BUFFER_ADD = 0x39;
- //DEBUG("added TDI bytes (io %i)", num_bytes);
- }
- else if (type == SCAN_OUT)
- {
- /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x19;
- //DEBUG("added TDI bytes (o)");
- }
- else if (type == SCAN_IN)
- {
- /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x28;
- //DEBUG("added TDI bytes (i %i)", num_bytes);
- }
- BUFFER_ADD = (num_bytes-2) & 0xff;
- BUFFER_ADD = ((num_bytes-2) >> 8) & 0xff;
- }
- if (type != SCAN_IN)
- {
- /* add complete bytes */
- while(num_bytes-- > 1)
- {
- BUFFER_ADD = buffer[cur_byte];
- cur_byte++;
- bits_left -= 8;
- }
- }
- if (type == SCAN_IN)
- {
- bits_left -= 8 * (num_bytes - 1);
- }
-
- /* the most signifcant bit is scanned during TAP movement */
- if (type != SCAN_IN)
- last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
- else
- last_bit = 0;
-
- /* process remaining bits but the last one */
- if (bits_left > 1)
- {
- if (type == SCAN_IO)
- {
- /* Clock Data Bits In and Out LSB First */
- BUFFER_ADD = 0x3b;
- //DEBUG("added TDI bits (io) %i", bits_left - 1);
- }
- else if (type == SCAN_OUT)
- {
- /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
- BUFFER_ADD = 0x1b;
- //DEBUG("added TDI bits (o)");
- }
- else if (type == SCAN_IN)
- {
- /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
- BUFFER_ADD = 0x2a;
- //DEBUG("added TDI bits (i %i)", bits_left - 1);
- }
- BUFFER_ADD = bits_left - 2;
- if (type != SCAN_IN)
- BUFFER_ADD = buffer[cur_byte];
- }
-
- /* move from Shift-IR/DR to end state */
- if (type != SCAN_OUT)
- {
- /* Clock Data to TMS/CS Pin with Read */
- BUFFER_ADD = 0x6b;
- //DEBUG("added TMS scan (read)");
- }
- else
- {
- /* Clock Data to TMS/CS Pin (no Read) */
- BUFFER_ADD = 0x4b;
- //DEBUG("added TMS scan (no read)");
- }
- BUFFER_ADD = 0x6;
- BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
- cur_state = end_state;
-
-}
-
-int ftdi2232_predict_scan_out(int scan_size, enum scan_type type)
-{
- int predicted_size = 6;
- if (type == SCAN_IN) /* only from device to host */
- {
- predicted_size += (CEIL(scan_size, 8) > 1) ? 3 : 0;
- predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
- }
- else /* host to device, or bidirectional */
- {
- predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) + 3 - 1) : 0;
- predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
- }
-
- return predicted_size;
-}
-
-int ftdi2232_predict_scan_in(int scan_size, enum scan_type type)
-{
- int predicted_size = 0;
-
- if (type != SCAN_OUT)
- {
- /* complete bytes */
- predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
- /* remaining bits - 1 */
- predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
- /* last bit (from TMS scan) */
- predicted_size += 1;
- }
-
- //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size);
-
- return predicted_size;
-}
-
-int ftdi2232_execute_queue()
-{
- jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
- jtag_command_t *first_unsent = cmd; /* next command that has to be sent */
- u8 *buffer;
- int scan_size; /* size of IR or DR scan */
- enum scan_type type;
- int i;
- int predicted_size = 0;
- int require_send = 0;
-
- ftdi2232_buffer_size = 0;
- ftdi2232_expect_read = 0;
-
- while (cmd)
- {
- switch(cmd->type)
- {
- case JTAG_END_STATE:
- if (cmd->cmd.end_state->end_state != -1)
- ftdi2232_end_state(cmd->cmd.end_state->end_state);
- break;
- case JTAG_RESET:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3;
- if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
- {
- ftdi2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
-
- if (cmd->cmd.reset->trst == 1)
- {
- cur_state = TAP_TLR;
- discrete_output &= ~FTDI2232_TRST;
- }
- else if (cmd->cmd.reset->trst == 0)
- {
- discrete_output |= FTDI2232_TRST;
- }
-
- if (cmd->cmd.reset->srst == 1)
- discrete_output &= ~FTDI2232_SRST;
- else if (cmd->cmd.reset->srst == 0)
- discrete_output |= FTDI2232_SRST;
- /* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- /* value (TMS=1,TCK=0, TDI=0, TRST/SRST */
- BUFFER_ADD = 0x08 | discrete_output;
- /* dir (output=1), TCK/TDI/TMS=out, TDO=in, TRST/SRST=out */
- BUFFER_ADD = 0x0b | FTDI2232_SRST | FTDI2232_TRST;
- require_send = 1;
- break;
- case JTAG_RUNTEST:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 0;
- if (cur_state != TAP_RTI)
- predicted_size += 3;
- predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
- if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_RTI))
- predicted_size += 3;
- if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
- predicted_size += 3;
- if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
- {
- ftdi2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- if (cur_state != TAP_RTI)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_RTI);
- cur_state = TAP_RTI;
- require_send = 1;
- }
- i = cmd->cmd.runtest->num_cycles;
- while (i > 0)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = (i > 7) ? 6 : (i - 1);
- /* TMS data bits */
- BUFFER_ADD = 0x0;
- cur_state = TAP_RTI;
- i -= (i > 7) ? 7 : i;
- //DEBUG("added TMS scan (no read)");
- }
- if (cmd->cmd.runtest->end_state != -1)
- ftdi2232_end_state(cmd->cmd.runtest->end_state);
- if (cur_state != end_state)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, end_state);
- cur_state = end_state;
- //DEBUG("added TMS scan (no read)");
- }
- require_send = 1;
- break;
- case JTAG_STATEMOVE:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3;
- if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
- {
- ftdi2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- if (cmd->cmd.statemove->end_state != -1)
- ftdi2232_end_state(cmd->cmd.statemove->end_state);
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, end_state);
- //DEBUG("added TMS scan (no read)");
- cur_state = end_state;
- require_send = 1;
- break;
- case JTAG_SCAN:
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
- type = jtag_scan_type(cmd->cmd.scan);
- predicted_size = ftdi2232_predict_scan_out(scan_size, type);
- if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
- {
- ftdi2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- ftdi2232_expect_read += ftdi2232_predict_scan_in(scan_size, type);
- //DEBUG("new read size: %i", ftdi2232_expect_read);
- if (cmd->cmd.scan->end_state != -1)
- ftdi2232_end_state(cmd->cmd.scan->end_state);
- ftdi2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
- require_send = 1;
- if (buffer)
- free(buffer);
- break;
- case JTAG_SLEEP:
- jtag_sleep(cmd->cmd.sleep->us);
- break;
- default:
- ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
- cmd = cmd->next;
- }
-
- if (require_send > 0)
- ftdi2232_send_and_recv(first_unsent, cmd);
-
- return ERROR_OK;
-}
-
-int ftdi2232_init(void)
-{
- if (ftdi_init(&ftdic) < 0)
- return ERROR_JTAG_INIT_FAILED;
-
- /* context, vendor id, product id */
- if (ftdi_usb_open(&ftdic, ftdi2232_vid, ftdi2232_pid) < 0)
- {
- ERROR("unable to open ftdi device: %s", ftdic.error_str);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- if (ftdi_usb_reset(&ftdic) < 0)
- {
- ERROR("unable to reset ftdi device");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- if (ftdi_set_latency_timer(&ftdic, 1) < 0)
- {
- ERROR("unable to set latency timer");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- ftdi2232_buffer_size = 0;
- ftdi2232_buffer = malloc(FTDI2232_BUFFER_SIZE);
-
- ftdic.bitbang_mode = 0; /* Reset controller */
- ftdi_enable_bitbang(&ftdic, 0x0b | FTDI2232_SRST | FTDI2232_TRST); /* ctx, i/o mask (out=1, in=0) */
-
- ftdic.bitbang_mode = 2; /* MPSSE mode */
- ftdi_enable_bitbang(&ftdic, 0x0b | FTDI2232_SRST | FTDI2232_TRST); /* ctx, i/o mask (out=1, in=0) */
-
- if (ftdi_usb_purge_buffers(&ftdic) < 0)
- {
- ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- /* initialize low byte for jtag */
- BUFFER_ADD = 0x80; /* command "set data bits low byte" */
- BUFFER_ADD = 0x08 | FTDI2232_SRST | FTDI2232_TRST; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
- BUFFER_ADD = 0x0b | FTDI2232_SRST | FTDI2232_TRST; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
- BUFFER_ADD = 0x85; /* command "Disconnect TDI/DO to TDO/DI for Loopback" */
- ftdi2232_debug_dump_buffer();
- if (ftdi_write_data(&ftdic, ftdi2232_buffer, ftdi2232_buffer_size) != 4)
- return ERROR_JTAG_INIT_FAILED;
-
- ftdi2232_speed(jtag_speed);
-
- return ERROR_OK;
-}
-
-int ftdi2232_quit(void)
-{
- ftdi_disable_bitbang(&ftdic);
-
- ftdi_usb_close(&ftdic);
-
- ftdi_deinit(&ftdic);
-
- free(ftdi2232_buffer);
-
- return ERROR_OK;
-}
-
-int ftdi2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc >= 2)
- {
- ftdi2232_vid = strtol(args[0], NULL, 0);
- ftdi2232_pid = strtol(args[1], NULL, 0);
- }
- else
- {
- WARNING("incomplete ftdi2232_vid_pid configuration directive");
- }
-
- return ERROR_OK;
-}
Code Review / openocd.git / commitdiff