\retval 0: all fine
\retval -1: couldn't allocate read buffer
+ \retval -2: couldn't allocate struct buffer
\remark This should be called before all functions
*/
int ftdi_init(struct ftdi_context *ftdi)
{
+ struct ftdi_eeprom* eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom));
ftdi->usb_ctx = NULL;
ftdi->usb_dev = NULL;
ftdi->usb_read_timeout = 5000;
ftdi->error_str = NULL;
- ftdi->eeprom = NULL;
+ if (eeprom == 0)
+ ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom");
+ ftdi->eeprom = eeprom;
/* All fine. Now allocate the readbuffer */
return ftdi_read_data_set_chunksize(ftdi, 4096);
free(ftdi->readbuffer);
ftdi->readbuffer = NULL;
}
+
+ if (ftdi->eeprom != NULL)
+ {
+ if (ftdi->eeprom->manufacturer != 0)
+ {
+ free(ftdi->eeprom->manufacturer);
+ ftdi->eeprom->manufacturer = 0;
+ }
+ if (ftdi->eeprom->product != 0)
+ {
+ free(ftdi->eeprom->product);
+ ftdi->eeprom->product = 0;
+ }
+ if (ftdi->eeprom->serial != 0)
+ {
+ free(ftdi->eeprom->serial);
+ ftdi->eeprom->serial = 0;
+ }
+ free(ftdi->eeprom);
+ ftdi->eeprom = NULL;
+ }
libusb_exit(ftdi->usb_ctx);
}
}
/**
- Set the eeprom size
-
- \param ftdi pointer to ftdi_context
- \param eeprom Pointer to ftdi_eeprom
- \param size
-
-*/
-void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size)
-{
- if (ftdi == NULL)
- return;
-
- ftdi->eeprom = eeprom;
- ftdi->eeprom->size=size;
-}
-
-/**
Init eeprom with default values.
-
- \param eeprom Pointer to ftdi_eeprom
+ \param ftdi pointer to ftdi_context
+ \param manufacturer String to use as Manufacturer
+ \param product String to use as Product description
+ \param serial String to use as Serial number description
+
+ \retval 0: all fine
+ \retval -1: No struct ftdi_context
+ \retval -2: No struct ftdi_eeprom
*/
-void ftdi_eeprom_initdefaults(struct ftdi_context *ftdi)
+int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
+ char * product, char * serial)
{
- int i;
struct ftdi_eeprom *eeprom;
if (ftdi == NULL)
- return;
+ ftdi_error_return(-1, "No struct ftdi_context");
+
if (ftdi->eeprom == NULL)
- return;
+ ftdi_error_return(-2,"No struct ftdi_eeprom");
eeprom = ftdi->eeprom;
memset(eeprom, 0, sizeof(struct ftdi_eeprom));
eeprom->usb_version = 0x0200;
eeprom->max_power = 50;
+ if (eeprom->manufacturer)
+ free (eeprom->manufacturer);
eeprom->manufacturer = NULL;
+ if (manufacturer)
+ {
+ eeprom->manufacturer = malloc(strlen(manufacturer)+1);
+ if (eeprom->manufacturer)
+ strcpy(eeprom->manufacturer, manufacturer);
+ }
+
+ if (eeprom->product)
+ free (eeprom->product);
eeprom->product = NULL;
+ {
+ eeprom->product = malloc(strlen(product)+1);
+ if (eeprom->product)
+ strcpy(eeprom->product, product);
+ }
+
+ if (eeprom->serial)
+ free (eeprom->serial);
eeprom->serial = NULL;
+ if (serial)
+ {
+ eeprom->serial = malloc(strlen(serial)+1);
+ if (eeprom->serial)
+ strcpy(eeprom->serial, serial);
+ }
+
if(ftdi->type == TYPE_R)
{
}
else
eeprom->size = -1;
+ return 0;
}
/**
- Frees allocated memory in eeprom.
-
- \param eeprom Pointer to ftdi_eeprom
-*/
-void ftdi_eeprom_free(struct ftdi_context *ftdi)
-{
- if (!ftdi)
- return;
- if (ftdi->eeprom)
- {
- struct ftdi_eeprom *eeprom = ftdi->eeprom;
-
- if (eeprom->manufacturer != 0) {
- free(eeprom->manufacturer);
- eeprom->manufacturer = 0;
- }
- if (eeprom->product != 0) {
- free(eeprom->product);
- eeprom->product = 0;
- }
- if (eeprom->serial != 0) {
- free(eeprom->serial);
- eeprom->serial = 0;
- }
- }
-}
-
-/**
- Build binary output from ftdi_eeprom structure.
+ Build binary buffer from ftdi_eeprom structure.
Output is suitable for ftdi_write_eeprom().
- \note This function doesn't handle FT2232x devices. Only FT232x.
- \param eeprom Pointer to ftdi_eeprom
- \param output Buffer of 128 bytes to store eeprom image to
+ \param ftdi pointer to ftdi_context
\retval >0: free eeprom size
\retval -1: eeprom size (128 bytes) exceeded by custom strings
\retval -5: Chip doesn't support high current drive
\retval -6: No connected EEPROM or EEPROM Type unknown
*/
-int ftdi_eeprom_build(struct ftdi_context *ftdi, unsigned char *output)
+int ftdi_eeprom_build(struct ftdi_context *ftdi)
{
unsigned char i, j, k;
unsigned short checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
int size_check;
struct ftdi_eeprom *eeprom;
+ unsigned char * output;
if (ftdi == NULL)
ftdi_error_return(-2,"No context");
ftdi_error_return(-2,"No eeprom structure");
eeprom= ftdi->eeprom;
+ output = eeprom->buf;
if(eeprom->chip == -1)
ftdi_error_return(-5,"No connected EEPROM or EEPROM Type unknown");
size_check -= serial_size*2;
/* Space for the string type and pointer bytes */
- size_check -= -6;
+ size_check -= -9;
// eeprom size exceeded?
if (size_check < 0)
return (-1);
// empty eeprom
- memset (output, 0, eeprom->size);
+ memset (ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE);
// Bytes and Bits set for all Types
output[i & k] = eeprom->serial[j], i++;
output[i & k] = 0x00, i++;
}
+ output[i & k] = 0x02; /* as seen when written with FTD2XX */
+ i++;
+ output[i & k] = 0x03; /* as seen when written with FTD2XX */
+ i++;
+ output[i & k] = eeprom->is_not_pnp; /* as seen when written with FTD2XX */
+ i++;
+
output[0x13] = serial_size*2 + 2;
/* Fixme: ftd2xx seems to append 0x02, 0x03 and 0x01 for PnP = 0 or 0x00 else */
/**
Decode binary EEPROM image into an ftdi_eeprom structure.
- \param eeprom Pointer to ftdi_eeprom which will be filled in.
- \param buf Buffer of \a size bytes of raw eeprom data
- \param size size size of eeprom data in bytes
-
+ \param ftdi pointer to ftdi_context
+ \param verbose Decode EEPROM on stdout
+
\retval 0: all fine
\retval -1: something went wrong
FIXME: How to pass size? How to handle size field in ftdi_eeprom?
FIXME: Strings are malloc'ed here and should be freed somewhere
*/
-int ftdi_eeprom_decode(struct ftdi_context *ftdi, unsigned char *buf, int size, int verbose)
+int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose)
{
unsigned char i, j;
unsigned short checksum, eeprom_checksum, value;
unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0;
int eeprom_size;
struct ftdi_eeprom *eeprom;
+ unsigned char *buf = ftdi->eeprom->buf;
int release;
if (ftdi == NULL)
if (ftdi->eeprom == NULL)
ftdi_error_return(-1,"No eeprom structure");
- eeprom_size = ftdi->eeprom->size;
- if(ftdi->type == TYPE_R)
- eeprom_size = 0x80;
eeprom = ftdi->eeprom;
+ eeprom_size = eeprom->size;
// Addr 02: Vendor ID
eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8);
// Addr 0E: Offset of the manufacturer string + 0x80, calculated later
// Addr 0F: Length of manufacturer string
manufacturer_size = buf[0x0F]/2;
+ if(eeprom->manufacturer)
+ free(eeprom->manufacturer);
if (manufacturer_size > 0)
{
eeprom->manufacturer = malloc(manufacturer_size);
// Addr 10: Offset of the product string + 0x80, calculated later
// Addr 11: Length of product string
+ if(eeprom->product)
+ free(eeprom->product);
product_size = buf[0x11]/2;
if (product_size > 0)
{
// Addr 12: Offset of the serial string + 0x80, calculated later
// Addr 13: Length of serial string
+ if(eeprom->serial)
+ free(eeprom->serial);
serial_size = buf[0x13]/2;
if (serial_size > 0)
{
fprintf(stdout, "Pull IO pins low during suspend\n");
if(eeprom->remote_wakeup)
fprintf(stdout, "Enable Remote Wake Up\n");
+ fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1);
if (ftdi->type >= TYPE_2232C)
fprintf(stdout,"Channel A has Mode %s%s%s\n",
channel_mode[eeprom->channel_a_type],
Read eeprom
\param ftdi pointer to ftdi_context
- \param eeprom Pointer to store eeprom into
\retval 0: all fine
\retval -1: read failed
\retval -2: USB device unavailable
*/
-int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom)
+int ftdi_read_eeprom(struct ftdi_context *ftdi)
{
int i;
+ unsigned char *buf;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ buf = ftdi->eeprom->buf;
for (i = 0; i < FTDI_MAX_EEPROM_SIZE/2; i++)
{
- if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, i, eeprom+(i*2), 2, ftdi->usb_read_timeout) != 2)
+ if (libusb_control_transfer(
+ ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE,SIO_READ_EEPROM_REQUEST, 0, i,
+ buf+(i*2), 2, ftdi->usb_read_timeout) != 2)
ftdi_error_return(-1, "reading eeprom failed");
}
if (ftdi->type == TYPE_R)
- ftdi->eeprom->size = 0xa0;
+ ftdi->eeprom->size = 0x80;
/* Guesses size of eeprom by comparing halves
- will not work with blank eeprom */
- else if (strrchr((const char *)eeprom, 0xff) == ((const char *)eeprom +FTDI_MAX_EEPROM_SIZE -1))
+ else if (strrchr((const char *)buf, 0xff) == ((const char *)buf +FTDI_MAX_EEPROM_SIZE -1))
ftdi->eeprom->size = -1;
- else if(memcmp(eeprom,&eeprom[0x80],0x80) == 0)
+ else if(memcmp(buf,&buf[0x80],0x80) == 0)
ftdi->eeprom->size = 0x80;
- else if(memcmp(eeprom,&eeprom[0x40],0x40) == 0)
+ else if(memcmp(buf,&buf[0x40],0x40) == 0)
ftdi->eeprom->size = 0x40;
else
ftdi->eeprom->size = 0x100;
Write eeprom
\param ftdi pointer to ftdi_context
- \param eeprom Pointer to read eeprom from
-
+
\retval 0: all fine
\retval -1: read failed
\retval -2: USB device unavailable
*/
-int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom)
+int ftdi_write_eeprom(struct ftdi_context *ftdi)
{
unsigned short usb_val, status;
int i, ret;
+ unsigned char *eeprom;
if (ftdi == NULL || ftdi->usb_dev == NULL)
ftdi_error_return(-2, "USB device unavailable");
+ eeprom = ftdi->eeprom->buf;
/* These commands were traced while running MProg */
if ((ret = ftdi_usb_reset(ftdi)) != 0)
git://developer.intra2net.com / libftdi / blobdiff