return code; \
} while(0);
+/**
+ Internal function to close usb device pointer.
+ Sets ftdi->usb_dev to NULL.
+ \internal
+
+ \param ftdi pointer to ftdi_context
+
+ \retval zero if all is fine, otherwise error code from usb_close()
+*/
+static int ftdi_usb_close_internal (struct ftdi_context *ftdi)
+{
+ int ret = 0;
+
+ if (ftdi->usb_dev)
+ {
+ ret = usb_close (ftdi->usb_dev);
+ ftdi->usb_dev = NULL;
+ }
+
+ return ret;
+}
/**
Initializes a ftdi_context.
*/
int ftdi_init(struct ftdi_context *ftdi)
{
- int i;
+ unsigned int i;
ftdi->usb_dev = NULL;
ftdi->usb_read_timeout = 5000;
\return a pointer to a new ftdi_context, or NULL on failure
*/
-struct ftdi_context *ftdi_new()
+struct ftdi_context *ftdi_new(void)
{
struct ftdi_context * ftdi = (struct ftdi_context *)malloc(sizeof(struct ftdi_context));
Open selected channels on a chip, otherwise use first channel.
\param ftdi pointer to ftdi_context
- \param interface Interface to use for FT2232C chips.
+ \param interface Interface to use for FT2232C/2232H/4232H chips.
\retval 0: all fine
\retval -1: unknown interface
ftdi->in_ep = 0x04;
ftdi->out_ep = 0x83;
break;
+ case INTERFACE_C:
+ ftdi->interface = 2;
+ ftdi->index = INTERFACE_C;
+ ftdi->in_ep = 0x06;
+ ftdi->out_ep = 0x85;
+ break;
+ case INTERFACE_D:
+ ftdi->interface = 3;
+ ftdi->index = INTERFACE_D;
+ ftdi->in_ep = 0x08;
+ ftdi->out_ep = 0x87;
+ break;
default:
ftdi_error_return(-1, "Unknown interface");
}
*/
void ftdi_deinit(struct ftdi_context *ftdi)
{
+ ftdi_usb_close_internal (ftdi);
+
if (ftdi->async_usb_buffer != NULL)
{
free(ftdi->async_usb_buffer);
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iManufacturer, manufacturer, mnf_len) <= 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-7, usb_strerror());
}
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iProduct, description, desc_len) <= 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-8, usb_strerror());
}
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iSerialNumber, serial, serial_len) <= 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-9, usb_strerror());
}
}
- if (usb_close (ftdi->usb_dev) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, usb_strerror());
return 0;
usb_set_configuration(ftdi->usb_dev, dev->config[0].bConfigurationValue) &&
errno != EBUSY)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
if (usb_claim_interface(ftdi->usb_dev, ftdi->interface) != 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
if (ftdi_usb_reset (ftdi) != 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-6, "ftdi_usb_reset failed");
}
if (ftdi_set_baudrate (ftdi, 9600) != 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-7, "set baudrate failed");
}
else if (dev->descriptor.bcdDevice == 0x200)
ftdi->type = TYPE_AM;
else if (dev->descriptor.bcdDevice == 0x500)
- {
ftdi->type = TYPE_2232C;
- if (!ftdi->index)
- ftdi->index = INTERFACE_A;
- }
else if (dev->descriptor.bcdDevice == 0x600)
ftdi->type = TYPE_R;
+ else if (dev->descriptor.bcdDevice == 0x700)
+ ftdi->type = TYPE_2232H;
+ else if (dev->descriptor.bcdDevice == 0x800)
+ ftdi->type = TYPE_4232H;
+
+ // Set default interface on dual/quad type chips
+ switch(ftdi->type)
+ {
+ case TYPE_2232C:
+ case TYPE_2232H:
+ case TYPE_4232H:
+ if (!ftdi->index)
+ ftdi->index = INTERFACE_A;
+ break;
+ default:
+ break;
+ }
ftdi_error_return(0, "all fine");
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iProduct, string, sizeof(string)) <= 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-8, "unable to fetch product description");
}
if (strncmp(string, description, sizeof(string)) != 0)
{
- if (usb_close (ftdi->usb_dev) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
continue;
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iSerialNumber, string, sizeof(string)) <= 0)
{
- usb_close (ftdi->usb_dev);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-9, "unable to fetch serial number");
}
if (strncmp(string, serial, sizeof(string)) != 0)
{
- if (usb_close (ftdi->usb_dev) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
continue;
}
}
- if (usb_close (ftdi->usb_dev) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
return ftdi_usb_open_dev(ftdi, dev);
return 0;
}
+
+
/**
Closes the ftdi device. Call ftdi_deinit() if you're cleaning up.
ftdi_async_complete(ftdi,1);
#endif
- if (usb_release_interface(ftdi->usb_dev, ftdi->interface) != 0)
- rtn = -1;
+ if (ftdi->usb_dev != NULL)
+ if (usb_release_interface(ftdi->usb_dev, ftdi->interface) != 0)
+ rtn = -1;
- if (usb_close (ftdi->usb_dev) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
rtn = -2;
return rtn;
{
struct usbdevfs_urb *urb;
int pending=0;
- int i;
+ unsigned int i;
for (i=0; i < ftdi->async_usb_buffer_size; i++)
{
{
struct usbdevfs_urb *urb;
int bytesdone = 0, requested;
- int ret, i;
- int cleanup_count;
+ int ret, cleanup_count;
+ unsigned int i;
do
{
int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size)
{
int offset = 0, ret = 1, i, num_of_chunks, chunk_remains;
+ int packet_size;
+
+ // New hi-speed devices from FTDI use a packet size of 512 bytes
+ if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H)
+ packet_size = 512;
+ else
+ packet_size = 64;
// everything we want is still in the readbuffer?
if (size <= ftdi->readbuffer_remaining)
{
// skip FTDI status bytes.
// Maybe stored in the future to enable modem use
- num_of_chunks = ret / 64;
- chunk_remains = ret % 64;
+ num_of_chunks = ret / packet_size;
+ chunk_remains = ret % packet_size;
//printf("ret = %X, num_of_chunks = %X, chunk_remains = %X, readbuffer_offset = %X\n", ret, num_of_chunks, chunk_remains, ftdi->readbuffer_offset);
ftdi->readbuffer_offset += 2;
ret -= 2;
- if (ret > 62)
+ if (ret > packet_size - 2)
{
for (i = 1; i < num_of_chunks; i++)
- memmove (ftdi->readbuffer+ftdi->readbuffer_offset+62*i,
- ftdi->readbuffer+ftdi->readbuffer_offset+64*i,
- 62);
+ memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i,
+ ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i,
+ packet_size - 2);
if (chunk_remains > 2)
{
- memmove (ftdi->readbuffer+ftdi->readbuffer_offset+62*i,
- ftdi->readbuffer+ftdi->readbuffer_offset+64*i,
+ memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i,
+ ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i,
chunk_remains-2);
ret -= 2*num_of_chunks;
}
Decode binary EEPROM image into an ftdi_eeprom structure.
\param eeprom Pointer to ftdi_eeprom which will be filled in.
- \param output Buffer of \a size bytes of raw eeprom data
+ \param buf Buffer of \a size bytes of raw eeprom data
\param size size size of eeprom data in bytes
\retval 0: all fine
// Addr 04: Product ID
eeprom->product_id = buf[0x04] + (buf[0x05] << 8);
- switch (buf[0x06] + (buf[0x07]<<8))
+ value = buf[0x06] + (buf[0x07]<<8);
+ switch (value)
{
case 0x0400:
eeprom->BM_type_chip = 1;
int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom)
{
unsigned short usb_val, status;
- int i;
+ int i, ret;
/* These commands were traced while running MProg */
- ftdi_usb_reset(ftdi);
- ftdi_poll_modem_status(ftdi, &status);
- ftdi_set_latency_timer(ftdi, 0x77);
+ if ((ret = ftdi_usb_reset(ftdi)) != 0)
+ return ret;
+ if ((ret = ftdi_poll_modem_status(ftdi, &status)) != 0)
+ return ret;
+ if ((ret = ftdi_set_latency_timer(ftdi, 0x77)) != 0)
+ return ret;
for (i = 0; i < ftdi->eeprom_size/2; i++)
{
git://developer.intra2net.com / libftdi / blobdiff