#include "bitq.h"
/* PRESTO access library includes */
-#if BUILD_PRESTO_FTD2XX == 1
-#include <ftd2xx.h>
-#include "ftd2xx_common.h"
-#elif BUILD_PRESTO_LIBFTDI == 1
#include <ftdi.h>
-#else
-#error "BUG: either FTD2XX and LIBFTDI has to be used"
-#endif
/* -------------------------------------------------------------------------- */
#define BUFFER_SIZE (64*62)
struct presto {
-#if BUILD_PRESTO_FTD2XX == 1
- FT_HANDLE handle;
- FT_STATUS status;
-#elif BUILD_PRESTO_LIBFTDI == 1
struct ftdi_context ftdic;
int retval;
-#endif
char serial[FT_DEVICE_SERNUM_LEN];
static int presto_write(uint8_t *buf, uint32_t size)
{
-#if BUILD_PRESTO_FTD2XX == 1
- DWORD ftbytes;
- presto->status = FT_Write(presto->handle, buf, size, &ftbytes);
- if (presto->status != FT_OK) {
- LOG_ERROR("FT_Write returned: %s", ftd2xx_status_string(presto->status));
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
-#elif BUILD_PRESTO_LIBFTDI == 1
uint32_t ftbytes;
presto->retval = ftdi_write_data(&presto->ftdic, buf, size);
if (presto->retval < 0) {
return ERROR_JTAG_DEVICE_ERROR;
}
ftbytes = presto->retval;
-#endif
if (ftbytes != size) {
LOG_ERROR("couldn't write the requested number of bytes to PRESTO (%u < %u)",
static int presto_read(uint8_t *buf, uint32_t size)
{
-#if BUILD_PRESTO_FTD2XX == 1
- DWORD ftbytes;
- presto->status = FT_Read(presto->handle, buf, size, &ftbytes);
- if (presto->status != FT_OK) {
- LOG_ERROR("FT_Read returned: %s", ftd2xx_status_string(presto->status));
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
-#elif BUILD_PRESTO_LIBFTDI == 1
uint32_t ftbytes = 0;
struct timeval timeout, now;
((now.tv_sec == timeout.tv_sec) && (now.tv_usec > timeout.tv_usec)))
break;
}
-#endif
if (ftbytes != size) {
/* this is just a warning, there might have been timeout when detecting PRESTO,
return ERROR_OK;
}
-#if BUILD_PRESTO_FTD2XX == 1
-static int presto_open_ftd2xx(char *req_serial)
-{
- uint32_t i;
- DWORD numdevs;
- DWORD vidpid;
- char devname[FT_DEVICE_NAME_LEN];
- FT_DEVICE device;
-
- BYTE presto_data;
- DWORD ftbytes;
-
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
-
-#if IS_WIN32 == 0
- /* Add non-standard Vid/Pid to the linux driver */
- presto->status = FT_SetVIDPID(PRESTO_VID, PRESTO_PID);
- if (presto->status != FT_OK) {
- LOG_ERROR("couldn't add PRESTO VID/PID");
- exit(-1);
- }
-#endif
-
- presto->status = FT_ListDevices(&numdevs, NULL, FT_LIST_NUMBER_ONLY);
- if (presto->status != FT_OK) {
- LOG_ERROR("FT_ListDevices failed: %s", ftd2xx_status_string(presto->status));
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- LOG_DEBUG("FTDI devices available: %" PRIu32, (uint32_t)numdevs);
- for (i = 0; i < numdevs; i++) {
- presto->status = FT_Open(i, &(presto->handle));
- if (presto->status != FT_OK) {
- /* this is not fatal, the device may be legitimately open by other process,
- *hence debug message only */
- LOG_DEBUG("FT_Open failed: %s", ftd2xx_status_string(presto->status));
- continue;
- }
- LOG_DEBUG("FTDI device %i open", (int)i);
-
- presto->status = FT_GetDeviceInfo(presto->handle, &device,
- &vidpid, presto->serial, devname, NULL);
- if (presto->status == FT_OK) {
- if (vidpid == PRESTO_VID_PID && (req_serial == NULL ||
- !strcmp(presto->serial, req_serial)))
- break;
- } else
- LOG_DEBUG("FT_GetDeviceInfo failed: %s", ftd2xx_status_string(
- presto->status));
-
- LOG_DEBUG("FTDI device %i does not match, closing", (int)i);
- FT_Close(presto->handle);
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
- }
-
- if (presto->handle == (FT_HANDLE)INVALID_HANDLE_VALUE)
- return ERROR_JTAG_DEVICE_ERROR; /* presto not open, return */
-
- presto->status = FT_SetLatencyTimer(presto->handle, 1);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_SetTimeouts(presto->handle, 100, 0);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0xD0;
- presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- /* delay between first write/read turnaround (after purge?) necessary
- * under Linux for unknown reason,
- * probably a bug in library threading */
- usleep(100000);
- presto->status = FT_Read(presto->handle, &presto_data, 1, &ftbytes);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if (ftbytes != 1) {
- LOG_DEBUG("PRESTO reset");
-
- presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
- presto->status = FT_SetBitMode(presto->handle, 0x80, 1);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
- presto->status = FT_SetBaudRate(presto->handle, 9600);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0;
- for (i = 0; i < 4 * 62; i++) {
- presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
- }
- usleep(100000);
-
- presto->status = FT_SetBitMode(presto->handle, 0x00, 0);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0xD0;
- presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- /* delay between first write/read turnaround (after purge?) necessary under Linux for unknown reason,
- probably a bug in library threading */
- usleep(100000);
- presto->status = FT_Read(presto->handle, &presto_data, 1, &ftbytes);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if (ftbytes != 1) {
- LOG_DEBUG("PRESTO not responding");
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
-
- presto->status = FT_SetTimeouts(presto->handle, 0, 0);
- if (presto->status != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_Write(presto->handle, &presto_init_seq,
- sizeof(presto_init_seq), &ftbytes);
-
- if (presto->status != FT_OK || ftbytes != sizeof(presto_init_seq))
- return ERROR_JTAG_DEVICE_ERROR;
-
- return ERROR_OK;
-}
-
-#elif BUILD_PRESTO_LIBFTDI == 1
static int presto_open_libftdi(char *req_serial)
{
uint8_t presto_data;
return ERROR_OK;
}
-#endif /* BUILD_PRESTO_LIBFTDI == 1 */
static int presto_open(char *req_serial)
{
presto->jtag_speed = 0;
-#if BUILD_PRESTO_FTD2XX == 1
- return presto_open_ftd2xx(req_serial);
-#elif BUILD_PRESTO_LIBFTDI == 1
return presto_open_libftdi(req_serial);
-#endif
}
static int presto_close(void)
int result = ERROR_OK;
-#if BUILD_PRESTO_FTD2XX == 1
- DWORD ftbytes;
-
- if (presto->handle == (FT_HANDLE)INVALID_HANDLE_VALUE)
- return result;
-
- presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX);
- if (presto->status != FT_OK)
- result = ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_Write(presto->handle,
- &presto_init_seq,
- sizeof(presto_init_seq),
- &ftbytes);
- if (presto->status != FT_OK || ftbytes != sizeof(presto_init_seq))
- result = ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_SetLatencyTimer(presto->handle, 16);
- if (presto->status != FT_OK)
- result = ERROR_JTAG_DEVICE_ERROR;
-
- presto->status = FT_Close(presto->handle);
- if (presto->status != FT_OK)
- result = ERROR_JTAG_DEVICE_ERROR;
- else
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
-
-#elif BUILD_PRESTO_LIBFTDI == 1
-
presto->retval = ftdi_write_data(&presto->ftdic, presto_init_seq, sizeof(presto_init_seq));
if (presto->retval != sizeof(presto_init_seq))
result = ERROR_JTAG_DEVICE_ERROR;
result = ERROR_JTAG_DEVICE_ERROR;
else
ftdi_deinit(&presto->ftdic);
-#endif
return result;
}
if (presto->buff_out_pos == 0)
return ERROR_OK;
-#if BUILD_PRESTO_FTD2XX == 1
- if (presto->status != FT_OK) {
-#elif BUILD_PRESTO_LIBFTDI == 1
if (presto->retval < 0) {
-#endif
LOG_DEBUG("error in previous communication, canceling I/O operation");
return ERROR_JTAG_DEVICE_ERROR;
}
} else
return ERROR_JTAG_DEVICE_ERROR;
-#if BUILD_PRESTO_FTD2XX == 1
- if (presto->buff_out_pos >= BUFFER_SIZE)
-#elif BUILD_PRESTO_LIBFTDI == 1
/* libftdi does not do background read, be sure that USB IN buffer does not overflow (128
*bytes only!) */
if (presto->buff_out_pos >= BUFFER_SIZE || presto->buff_in_exp == 128)
-#endif
return presto_flush();
return ERROR_OK;
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