ftdi.c - description
-------------------
begin : Fri Apr 4 2003
- copyright : (C) 2003-2017 by Intra2net AG and the libftdi developers
+ copyright : (C) 2003-2020 by Intra2net AG and the libftdi developers
email : opensource@intra2net.com
+ SPDX-License-Identifier: LGPL-2.1-only
***************************************************************************/
/***************************************************************************
#include <stdlib.h>
#include "ftdi_i.h"
+/* Prevent deprecated messages when building library */
+#define _FTDI_DISABLE_DEPRECATED
#include "ftdi.h"
#include "ftdi_version_i.h"
*/
int ftdi_init(struct ftdi_context *ftdi)
{
- struct ftdi_eeprom* eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom));
+ struct ftdi_eeprom* eeprom;
ftdi->usb_ctx = NULL;
ftdi->usb_dev = NULL;
ftdi->usb_read_timeout = 5000;
ftdi_set_interface(ftdi, INTERFACE_ANY);
ftdi->bitbang_mode = 1; /* when bitbang is enabled this holds the number of the mode */
+ eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom));
if (eeprom == 0)
ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom");
memset(eeprom, 0, sizeof(struct ftdi_eeprom));
if (libusb_detach_kernel_driver(ftdi->usb_dev, ftdi->interface) !=0)
detach_errno = errno;
}
+ else if (ftdi->module_detach_mode == AUTO_DETACH_REATACH_SIO_MODULE)
+ {
+ if (libusb_set_auto_detach_kernel_driver(ftdi->usb_dev, 1) != LIBUSB_SUCCESS)
+ detach_errno = errno;
+ }
if (libusb_get_configuration (ftdi->usb_dev, &cfg) < 0)
ftdi_error_return(-12, "libusb_get_configuration () failed");
/**
Clears the read buffer on the chip and the internal read buffer.
+ This is the correct behavior for an RX flush.
\param ftdi pointer to ftdi_context
\retval -1: read buffer purge failed
\retval -2: USB device unavailable
*/
+int ftdi_tciflush(struct ftdi_context *ftdi)
+{
+ if (ftdi == NULL || ftdi->usb_dev == NULL)
+ ftdi_error_return(-2, "USB device unavailable");
+
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
+ SIO_RESET_REQUEST, SIO_TCIFLUSH,
+ ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0)
+ ftdi_error_return(-1, "FTDI purge of RX buffer failed");
+
+ // Invalidate data in the readbuffer
+ ftdi->readbuffer_offset = 0;
+ ftdi->readbuffer_remaining = 0;
+
+ return 0;
+}
+
+
+/**
+ Clears the write buffer on the chip and the internal read buffer.
+ This is incorrect behavior for an RX flush.
+
+ \param ftdi pointer to ftdi_context
+
+ \retval 0: all fine
+ \retval -1: write buffer purge failed
+ \retval -2: USB device unavailable
+
+ \deprecated Use \ref ftdi_tciflush(struct ftdi_context *ftdi)
+*/
int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi)
{
if (ftdi == NULL || ftdi->usb_dev == NULL)
/**
Clears the write buffer on the chip.
+ This is correct behavior for a TX flush.
\param ftdi pointer to ftdi_context
\retval -1: write buffer purge failed
\retval -2: USB device unavailable
*/
+int ftdi_tcoflush(struct ftdi_context *ftdi)
+{
+ if (ftdi == NULL || ftdi->usb_dev == NULL)
+ ftdi_error_return(-2, "USB device unavailable");
+
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
+ SIO_RESET_REQUEST, SIO_TCOFLUSH,
+ ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0)
+ ftdi_error_return(-1, "FTDI purge of TX buffer failed");
+
+ return 0;
+}
+
+
+/**
+ Clears the read buffer on the chip.
+ This is incorrect behavior for a TX flush.
+
+ \param ftdi pointer to ftdi_context
+
+ \retval 0: all fine
+ \retval -1: read buffer purge failed
+ \retval -2: USB device unavailable
+
+ \deprecated Use \ref ftdi_tcoflush(struct ftdi_context *ftdi)
+*/
int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi)
{
if (ftdi == NULL || ftdi->usb_dev == NULL)
}
/**
+ Clears the RX and TX FIFOs on the chip and the internal read buffer.
+ This is correct behavior for both RX and TX flush.
+
+ \param ftdi pointer to ftdi_context
+
+ \retval 0: all fine
+ \retval -1: read buffer purge failed
+ \retval -2: write buffer purge failed
+ \retval -3: USB device unavailable
+*/
+int ftdi_tcioflush(struct ftdi_context *ftdi)
+{
+ int result;
+
+ if (ftdi == NULL || ftdi->usb_dev == NULL)
+ ftdi_error_return(-3, "USB device unavailable");
+
+ result = ftdi_tcoflush(ftdi);
+ if (result < 0)
+ return -1;
+
+ result = ftdi_tciflush(ftdi);
+ if (result < 0)
+ return -2;
+
+ return 0;
+}
+
+/**
Clears the buffers on the chip and the internal read buffer.
+ While coded incorrectly, the result is satisfactory.
\param ftdi pointer to ftdi_context
\retval -1: read buffer purge failed
\retval -2: write buffer purge failed
\retval -3: USB device unavailable
+
+ \deprecated Use \ref ftdi_tcioflush(struct ftdi_context *ftdi)
*/
int ftdi_usb_purge_buffers(struct ftdi_context *ftdi)
{
/**
Reads data in chunks (see ftdi_read_data_set_chunksize()) from the chip.
- Automatically strips the two modem status bytes transfered during every read.
+ Automatically strips the two modem status bytes transferred during every read.
\param ftdi pointer to ftdi_context
\param buf Buffer to store data in
int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size)
{
int offset = 0, ret, i, num_of_chunks, chunk_remains;
- int packet_size = ftdi->max_packet_size;
+ int packet_size;
int actual_length = 1;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-666, "USB device unavailable");
// Packet size sanity check (avoid division by zero)
+ packet_size = ftdi->max_packet_size;
if (packet_size == 0)
ftdi_error_return(-1, "max_packet_size is bogus (zero)");
/**
Set flowcontrol for ftdi chip
+ Note: Do not use this function to enable XON/XOFF mode, use ftdi_setflowctrl_xonxoff() instead.
+
\param ftdi pointer to ftdi_context
\param flowctrl flow control to use. should be
- SIO_DISABLE_FLOW_CTRL, SIO_RTS_CTS_HS, SIO_DTR_DSR_HS or SIO_XON_XOFF_HS
+ SIO_DISABLE_FLOW_CTRL, SIO_RTS_CTS_HS, SIO_DTR_DSR_HS
\retval 0: all fine
\retval -1: set flow control failed
}
/**
+ Set XON/XOFF flowcontrol for ftdi chip
+
+ \param ftdi pointer to ftdi_context
+ \param xon character code used to resume transmission
+ \param xoff character code used to pause transmission
+
+ \retval 0: all fine
+ \retval -1: set flow control failed
+ \retval -2: USB device unavailable
+*/
+int ftdi_setflowctrl_xonxoff(struct ftdi_context *ftdi, unsigned char xon, unsigned char xoff)
+{
+ if (ftdi == NULL || ftdi->usb_dev == NULL)
+ ftdi_error_return(-2, "USB device unavailable");
+
+ uint16_t xonxoff = xon | (xoff << 8);
+ if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE,
+ SIO_SET_FLOW_CTRL_REQUEST, xonxoff, (SIO_XON_XOFF_HS | ftdi->index),
+ NULL, 0, ftdi->usb_write_timeout) < 0)
+ ftdi_error_return(-1, "set flow control failed");
+
+ return 0;
+}
+
+/**
Set dtr line
\param ftdi pointer to ftdi_context
return 0;
}
-int ftdi_eeprom_set_strings(struct ftdi_context *ftdi, char * manufacturer,
- char * product, char * serial)
+int ftdi_eeprom_set_strings(struct ftdi_context *ftdi, const char * manufacturer,
+ const char * product, const char * serial)
{
struct ftdi_eeprom *eeprom;
case TYPE_2232C:
output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232C);
- if ( eeprom->channel_a_driver == DRIVER_VCP)
+ if (eeprom->channel_a_driver)
output[0x00] |= DRIVER_VCP;
else
output[0x00] &= ~DRIVER_VCP;
- if ( eeprom->high_current_a == HIGH_CURRENT_DRIVE)
+ if (eeprom->high_current_a)
output[0x00] |= HIGH_CURRENT_DRIVE;
else
output[0x00] &= ~HIGH_CURRENT_DRIVE;
output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232C);
- if ( eeprom->channel_b_driver == DRIVER_VCP)
+ if (eeprom->channel_b_driver)
output[0x01] |= DRIVER_VCP;
else
output[0x01] &= ~DRIVER_VCP;
- if ( eeprom->high_current_b == HIGH_CURRENT_DRIVE)
+ if (eeprom->high_current_b)
output[0x01] |= HIGH_CURRENT_DRIVE;
else
output[0x01] &= ~HIGH_CURRENT_DRIVE;
break;
case TYPE_R:
output[0x00] = type2bit(eeprom->channel_a_type, TYPE_R);
- if (eeprom->high_current == HIGH_CURRENT_DRIVE_R)
+ if (eeprom->high_current)
output[0x00] |= HIGH_CURRENT_DRIVE_R;
+
+ /* Field is inverted for TYPE_R: Bit 00.3 set to 1 is D2XX, VCP is 0 */
+ if (eeprom->channel_a_driver)
+ output[0x00] &= ~DRIVER_VCP;
+ else
+ output[0x00] |= DRIVER_VCP;
+
if (eeprom->external_oscillator)
output[0x00] |= 0x02;
output[0x01] = 0x40; /* Hard coded Endpoint Size*/
break;
case TYPE_2232H:
output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232H);
- if ( eeprom->channel_a_driver == DRIVER_VCP)
+ if (eeprom->channel_a_driver)
output[0x00] |= DRIVER_VCP;
else
output[0x00] &= ~DRIVER_VCP;
output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232H);
- if ( eeprom->channel_b_driver == DRIVER_VCP)
+ if (eeprom->channel_b_driver)
output[0x01] |= DRIVER_VCP;
else
output[0x01] &= ~DRIVER_VCP;
- if (eeprom->suspend_dbus7 == SUSPEND_DBUS7_BIT)
+
+ if (eeprom->suspend_dbus7)
output[0x01] |= SUSPEND_DBUS7_BIT;
else
output[0x01] &= ~SUSPEND_DBUS7_BIT;
output[0x0c] |= DRIVE_16MA;
else
output[0x0c] |= eeprom->group0_drive;
- if (eeprom->group0_schmitt == IS_SCHMITT)
+ if (eeprom->group0_schmitt)
output[0x0c] |= IS_SCHMITT;
- if (eeprom->group0_slew == SLOW_SLEW)
+ if (eeprom->group0_slew)
output[0x0c] |= SLOW_SLEW;
if (eeprom->group1_drive > DRIVE_16MA)
output[0x0c] |= DRIVE_16MA<<4;
else
output[0x0c] |= eeprom->group1_drive<<4;
- if (eeprom->group1_schmitt == IS_SCHMITT)
+ if (eeprom->group1_schmitt)
output[0x0c] |= IS_SCHMITT<<4;
- if (eeprom->group1_slew == SLOW_SLEW)
+ if (eeprom->group1_slew)
output[0x0c] |= SLOW_SLEW<<4;
if (eeprom->group2_drive > DRIVE_16MA)
output[0x0d] |= DRIVE_16MA;
else
output[0x0d] |= eeprom->group2_drive;
- if (eeprom->group2_schmitt == IS_SCHMITT)
+ if (eeprom->group2_schmitt)
output[0x0d] |= IS_SCHMITT;
- if (eeprom->group2_slew == SLOW_SLEW)
+ if (eeprom->group2_slew)
output[0x0d] |= SLOW_SLEW;
if (eeprom->group3_drive > DRIVE_16MA)
output[0x0d] |= DRIVE_16MA<<4;
else
output[0x0d] |= eeprom->group3_drive<<4;
- if (eeprom->group3_schmitt == IS_SCHMITT)
+ if (eeprom->group3_schmitt)
output[0x0d] |= IS_SCHMITT<<4;
- if (eeprom->group3_slew == SLOW_SLEW)
+ if (eeprom->group3_slew)
output[0x0d] |= SLOW_SLEW<<4;
output[0x18] = eeprom->chip;
break;
case TYPE_4232H:
- if (eeprom->channel_a_driver == DRIVER_VCP)
+ if (eeprom->channel_a_driver)
output[0x00] |= DRIVER_VCP;
else
output[0x00] &= ~DRIVER_VCP;
- if (eeprom->channel_b_driver == DRIVER_VCP)
+ if (eeprom->channel_b_driver)
output[0x01] |= DRIVER_VCP;
else
output[0x01] &= ~DRIVER_VCP;
- if (eeprom->channel_c_driver == DRIVER_VCP)
+ if (eeprom->channel_c_driver)
output[0x00] |= (DRIVER_VCP << 4);
else
output[0x00] &= ~(DRIVER_VCP << 4);
- if (eeprom->channel_d_driver == DRIVER_VCP)
+ if (eeprom->channel_d_driver)
output[0x01] |= (DRIVER_VCP << 4);
else
output[0x01] &= ~(DRIVER_VCP << 4);
output[0x0c] |= DRIVE_16MA;
else
output[0x0c] |= eeprom->group0_drive;
- if (eeprom->group0_schmitt == IS_SCHMITT)
+ if (eeprom->group0_schmitt)
output[0x0c] |= IS_SCHMITT;
- if (eeprom->group0_slew == SLOW_SLEW)
+ if (eeprom->group0_slew)
output[0x0c] |= SLOW_SLEW;
if (eeprom->group1_drive > DRIVE_16MA)
output[0x0c] |= DRIVE_16MA<<4;
else
output[0x0c] |= eeprom->group1_drive<<4;
- if (eeprom->group1_schmitt == IS_SCHMITT)
+ if (eeprom->group1_schmitt)
output[0x0c] |= IS_SCHMITT<<4;
- if (eeprom->group1_slew == SLOW_SLEW)
+ if (eeprom->group1_slew)
output[0x0c] |= SLOW_SLEW<<4;
if (eeprom->group2_drive > DRIVE_16MA)
output[0x0d] |= DRIVE_16MA;
else
output[0x0d] |= eeprom->group2_drive;
- if (eeprom->group2_schmitt == IS_SCHMITT)
+ if (eeprom->group2_schmitt)
output[0x0d] |= IS_SCHMITT;
- if (eeprom->group2_slew == SLOW_SLEW)
+ if (eeprom->group2_slew)
output[0x0d] |= SLOW_SLEW;
if (eeprom->group3_drive > DRIVE_16MA)
output[0x0d] |= DRIVE_16MA<<4;
else
output[0x0d] |= eeprom->group3_drive<<4;
- if (eeprom->group3_schmitt == IS_SCHMITT)
+ if (eeprom->group3_schmitt)
output[0x0d] |= IS_SCHMITT<<4;
- if (eeprom->group3_slew == SLOW_SLEW)
+ if (eeprom->group3_slew)
output[0x0d] |= SLOW_SLEW<<4;
output[0x18] = eeprom->chip;
break;
case TYPE_232H:
output[0x00] = type2bit(eeprom->channel_a_type, TYPE_232H);
- if ( eeprom->channel_a_driver == DRIVER_VCP)
+ if (eeprom->channel_a_driver)
output[0x00] |= DRIVER_VCPH;
else
output[0x00] &= ~DRIVER_VCPH;
+
if (eeprom->powersave)
output[0x01] |= POWER_SAVE_DISABLE_H;
else
output[0x01] |= FT1284_FLOW_CONTROL;
else
output[0x01] &= ~FT1284_FLOW_CONTROL;
+
if (eeprom->group0_drive > DRIVE_16MA)
output[0x0c] |= DRIVE_16MA;
else
output[0x0c] |= eeprom->group0_drive;
- if (eeprom->group0_schmitt == IS_SCHMITT)
+ if (eeprom->group0_schmitt)
output[0x0c] |= IS_SCHMITT;
- if (eeprom->group0_slew == SLOW_SLEW)
+ if (eeprom->group0_slew)
output[0x0c] |= SLOW_SLEW;
if (eeprom->group1_drive > DRIVE_16MA)
output[0x0d] |= DRIVE_16MA;
else
output[0x0d] |= eeprom->group1_drive;
- if (eeprom->group1_schmitt == IS_SCHMITT)
+ if (eeprom->group1_schmitt)
output[0x0d] |= IS_SCHMITT;
- if (eeprom->group1_slew == SLOW_SLEW)
+ if (eeprom->group1_slew)
output[0x0d] |= SLOW_SLEW;
set_ft232h_cbus(eeprom, output);
// Bit 7: always 1
// Bit 6: 1 if this device is self powered, 0 if bus powered
// Bit 5: 1 if this device uses remote wakeup
- eeprom->self_powered = buf[0x08] & 0x40;
- eeprom->remote_wakeup = buf[0x08] & 0x20;
+ eeprom->self_powered = !!(buf[0x08] & 0x40);
+ eeprom->remote_wakeup = !!(buf[0x08] & 0x20);
// Addr 09: Max power consumption: max power = value * 2 mA
eeprom->max_power = MAX_POWER_MILLIAMP_PER_UNIT * buf[0x09];
// Bit 1: 1 - Out EndPoint is Isochronous
// Bit 0: 1 - In EndPoint is Isochronous
//
- eeprom->in_is_isochronous = buf[0x0A]&0x01;
- eeprom->out_is_isochronous = buf[0x0A]&0x02;
- eeprom->suspend_pull_downs = buf[0x0A]&0x04;
+ eeprom->in_is_isochronous = !!(buf[0x0A]&0x01);
+ eeprom->out_is_isochronous = !!(buf[0x0A]&0x02);
+ eeprom->suspend_pull_downs = !!(buf[0x0A]&0x04);
eeprom->use_serial = !!(buf[0x0A] & USE_SERIAL_NUM);
eeprom->use_usb_version = !!(buf[0x0A] & USE_USB_VERSION_BIT);
else if (ftdi->type == TYPE_2232C)
{
eeprom->channel_a_type = bit2type(buf[0x00] & 0x7);
- eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP;
- eeprom->high_current_a = buf[0x00] & HIGH_CURRENT_DRIVE;
+ eeprom->channel_a_driver = !!(buf[0x00] & DRIVER_VCP);
+ eeprom->high_current_a = !!(buf[0x00] & HIGH_CURRENT_DRIVE);
eeprom->channel_b_type = buf[0x01] & 0x7;
- eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP;
- eeprom->high_current_b = buf[0x01] & HIGH_CURRENT_DRIVE;
+ eeprom->channel_b_driver = !!(buf[0x01] & DRIVER_VCP);
+ eeprom->high_current_b = !!(buf[0x01] & HIGH_CURRENT_DRIVE);
eeprom->chip = buf[0x14];
}
else if (ftdi->type == TYPE_R)
{
- /* TYPE_R flags D2XX, not VCP as all others*/
- eeprom->channel_a_driver = ~buf[0x00] & DRIVER_VCP;
- eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R;
- eeprom->external_oscillator = buf[0x00] & 0x02;
+ /* TYPE_R flags D2XX, not VCP as all others */
+ eeprom->channel_a_driver = !(buf[0x00] & DRIVER_VCP); /* note: inverted flag, use a single NOT */
+ eeprom->high_current = !!(buf[0x00] & HIGH_CURRENT_DRIVE_R);
+ eeprom->external_oscillator = !!(buf[0x00] & 0x02);
if ( (buf[0x01]&0x40) != 0x40)
fprintf(stderr,
"TYPE_R EEPROM byte[0x01] Bit 6 unexpected Endpoint size."
eeprom->chip = buf[0x16];
// Addr 0B: Invert data lines
// Works only on FT232R, not FT245R, but no way to distinguish
- eeprom->invert = buf[0x0B];
+ eeprom->invert = buf[0x0B]; /* note: not a bitflag */
// Addr 14: CBUS function: CBUS0, CBUS1
// Addr 15: CBUS function: CBUS2, CBUS3
// Addr 16: CBUS function: CBUS5
}
else if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H))
{
- eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP;
- eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP;
+ eeprom->channel_a_driver = !!(buf[0x00] & DRIVER_VCP);
+ eeprom->channel_b_driver = !!(buf[0x01] & DRIVER_VCP);
if (ftdi->type == TYPE_2232H)
{
eeprom->channel_a_type = bit2type(buf[0x00] & 0x7);
eeprom->channel_b_type = bit2type(buf[0x01] & 0x7);
- eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT;
+ eeprom->suspend_dbus7 = !!(buf[0x01] & SUSPEND_DBUS7_BIT);
}
else
{
- eeprom->channel_c_driver = (buf[0x00] >> 4) & DRIVER_VCP;
- eeprom->channel_d_driver = (buf[0x01] >> 4) & DRIVER_VCP;
- eeprom->channel_a_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 0);
- eeprom->channel_b_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 1);
- eeprom->channel_c_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 2);
- eeprom->channel_d_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 3);
+ eeprom->channel_c_driver = !!((buf[0x00] >> 4) & DRIVER_VCP);
+ eeprom->channel_d_driver = !!((buf[0x01] >> 4) & DRIVER_VCP);
+ eeprom->channel_a_rs485enable = !!(buf[0x0b] & (CHANNEL_IS_RS485 << 0));
+ eeprom->channel_b_rs485enable = !!(buf[0x0b] & (CHANNEL_IS_RS485 << 1));
+ eeprom->channel_c_rs485enable = !!(buf[0x0b] & (CHANNEL_IS_RS485 << 2));
+ eeprom->channel_d_rs485enable = !!(buf[0x0b] & (CHANNEL_IS_RS485 << 3));
}
eeprom->chip = buf[0x18];
- eeprom->group0_drive = buf[0x0c] & DRIVE_16MA;
- eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT;
- eeprom->group0_slew = buf[0x0c] & SLOW_SLEW;
- eeprom->group1_drive = (buf[0x0c] >> 4) & 0x3;
- eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT;
- eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW;
- eeprom->group2_drive = buf[0x0d] & DRIVE_16MA;
- eeprom->group2_schmitt = buf[0x0d] & IS_SCHMITT;
- eeprom->group2_slew = buf[0x0d] & SLOW_SLEW;
- eeprom->group3_drive = (buf[0x0d] >> 4) & DRIVE_16MA;
- eeprom->group3_schmitt = (buf[0x0d] >> 4) & IS_SCHMITT;
- eeprom->group3_slew = (buf[0x0d] >> 4) & SLOW_SLEW;
+ eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; /* not a bitflag */
+ eeprom->group0_schmitt = !!(buf[0x0c] & IS_SCHMITT);
+ eeprom->group0_slew = !!(buf[0x0c] & SLOW_SLEW);
+ eeprom->group1_drive = (buf[0x0c] >> 4) & DRIVE_16MA; /* not a bitflag */
+ eeprom->group1_schmitt = !!((buf[0x0c] >> 4) & IS_SCHMITT);
+ eeprom->group1_slew = !!((buf[0x0c] >> 4) & SLOW_SLEW);
+ eeprom->group2_drive = buf[0x0d] & DRIVE_16MA; /* not a bitflag */
+ eeprom->group2_schmitt = !!(buf[0x0d] & IS_SCHMITT);
+ eeprom->group2_slew = !!(buf[0x0d] & SLOW_SLEW);
+ eeprom->group3_drive = (buf[0x0d] >> 4) & DRIVE_16MA; /* not a bitflag */
+ eeprom->group3_schmitt = !!((buf[0x0d] >> 4) & IS_SCHMITT);
+ eeprom->group3_slew = !!((buf[0x0d] >> 4) & SLOW_SLEW);
}
else if (ftdi->type == TYPE_232H)
{
eeprom->channel_a_type = buf[0x00] & 0xf;
- eeprom->channel_a_driver = (buf[0x00] & DRIVER_VCPH)?DRIVER_VCP:0;
- eeprom->clock_polarity = buf[0x01] & FT1284_CLK_IDLE_STATE;
- eeprom->data_order = buf[0x01] & FT1284_DATA_LSB;
- eeprom->flow_control = buf[0x01] & FT1284_FLOW_CONTROL;
- eeprom->powersave = buf[0x01] & POWER_SAVE_DISABLE_H;
- eeprom->group0_drive = buf[0x0c] & DRIVE_16MA;
- eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT;
- eeprom->group0_slew = buf[0x0c] & SLOW_SLEW;
- eeprom->group1_drive = buf[0x0d] & DRIVE_16MA;
- eeprom->group1_schmitt = buf[0x0d] & IS_SCHMITT;
- eeprom->group1_slew = buf[0x0d] & SLOW_SLEW;
+ eeprom->channel_a_driver = !!(buf[0x00] & DRIVER_VCPH);
+ eeprom->clock_polarity = !!(buf[0x01] & FT1284_CLK_IDLE_STATE);
+ eeprom->data_order = !!(buf[0x01] & FT1284_DATA_LSB);
+ eeprom->flow_control = !!(buf[0x01] & FT1284_FLOW_CONTROL);
+ eeprom->powersave = !!(buf[0x01] & POWER_SAVE_DISABLE_H);
+ eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; /* not a bitflag */
+ eeprom->group0_schmitt = !!(buf[0x0c] & IS_SCHMITT);
+ eeprom->group0_slew = !!(buf[0x0c] & SLOW_SLEW);
+ eeprom->group1_drive = buf[0x0d] & DRIVE_16MA; /* not a bitflag */
+ eeprom->group1_schmitt = !!(buf[0x0d] & IS_SCHMITT);
+ eeprom->group1_slew = !!(buf[0x0d] & SLOW_SLEW);
for(i=0; i<5; i++)
{
{
eeprom->cbus_function[i] = buf[0x1a + i] & 0xFF;
}
- eeprom->group0_drive = buf[0x0c] & 0x03;
- eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT;
- eeprom->group0_slew = buf[0x0c] & SLOW_SLEW;
- eeprom->group1_drive = (buf[0x0c] >> 4) & 0x03;
- eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT;
- eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW;
-
- eeprom->invert = buf[0xb];
+ eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; /* not a bitflag */
+ eeprom->group0_schmitt = !!(buf[0x0c] & IS_SCHMITT);
+ eeprom->group0_slew = !!(buf[0x0c] & SLOW_SLEW);
+ eeprom->group1_drive = (buf[0x0c] >> 4) & DRIVE_16MA; /* not a bitflag */
+ eeprom->group1_schmitt = !!((buf[0x0c] >> 4) & IS_SCHMITT);
+ eeprom->group1_slew = !!((buf[0x0c] >> 4) & SLOW_SLEW);
+
+ eeprom->invert = buf[0xb]; /* not a bitflag */
}
if (verbose)