eeprom->self_powered = 1;
eeprom->remote_wakeup = 1;
- eeprom->chip_type = TYPE_BM;
+ eeprom->release = 0;
eeprom->in_is_isochronous = 0;
eeprom->out_is_isochronous = 0;
{
eeprom->cbus_function[i] = 0;
}
- eeprom->high_current = 0;
+ eeprom->high_current_a = 0;
eeprom->invert = 0;
eeprom->size = FTDI_MAX_EEPROM_SIZE;
for (i = 0; i < 5; i++)
{
if ((eeprom->cbus_function[i] > cbus_max[i]) ||
- (eeprom->cbus_function[i] && eeprom->chip_type != TYPE_R)) return -3;
+ (eeprom->cbus_function[i] && ftdi->type != TYPE_R)) return -3;
}
- if (eeprom->chip_type != TYPE_R)
+ if (ftdi->type != TYPE_R)
{
if (eeprom->invert) return -4;
- if (eeprom->high_current) return -5;
+ if (eeprom->high_current_a) return -5;
}
size_check = eeprom->size;
memset (output, 0, eeprom->size);
// Addr 00: High current IO
- output[0x00] = eeprom->high_current ? HIGH_CURRENT_DRIVE : 0;
+ output[0x00] = eeprom->high_current_a ? HIGH_CURRENT_DRIVE : 0;
// Addr 01: IN endpoint size (for R type devices, different for FT2232)
- if (eeprom->chip_type == TYPE_R) {
+ if (ftdi->type == TYPE_R) {
output[0x01] = 0x40;
}
// Addr 02: Vendor ID
// Addr 06: Device release number (0400h for BM features)
output[0x06] = 0x00;
- switch (eeprom->chip_type) {
+ switch (eeprom->release) {
case TYPE_AM:
output[0x07] = 0x02;
break;
// Dynamic content
// In images produced by FTDI's FT_Prog for FT232R strings start at 0x18
// Space till 0x18 should be considered as reserved.
- if (eeprom->chip_type >= TYPE_R) {
+ if (ftdi->type >= TYPE_R) {
i = 0x18;
} else {
i = 0x14;
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 ftdi_eeprom_decode(struct ftdi_context *ftdi, unsigned char *buf, int size, 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 = 128;
+ int eeprom_size;
struct ftdi_eeprom *eeprom;
if (ftdi == NULL)
ftdi_error_return(-1,"No context");
if (ftdi->eeprom == NULL)
ftdi_error_return(-1,"No eeprom");
-
+
+ eeprom_size = ftdi->eeprom->size;
+ if(ftdi->type == TYPE_R)
+ eeprom_size = 0x80;
eeprom = ftdi->eeprom;
-#if 0
- size_check = eeprom->size;
- size_check -= 28; // 28 are always in use (fixed)
- // Top half of a 256byte eeprom is used just for strings and checksum
- // it seems that the FTDI chip will not read these strings from the lower half
- // Each string starts with two bytes; offset and type (0x03 for string)
- // the checksum needs two bytes, so without the string data that 8 bytes from the top half
- if (eeprom->size>=256)size_check = 120;
- size_check -= manufacturer_size*2;
- size_check -= product_size*2;
- size_check -= serial_size*2;
+ // Addr 00: Channel A setting
- // eeprom size exceeded?
- if (size_check < 0)
- ftdi_error_return(-1,"Size check failed");
-#endif
+ eeprom->channel_a_type = buf[0x00] & 0x7;
+ eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP;
+ eeprom->high_current_a = buf[0x00] & HIGH_CURRENT_DRIVE;
- // empty eeprom struct
- memset(eeprom, 0, sizeof(struct ftdi_eeprom));
+ // Addr 01: Channel B setting
- // Addr 00: High current IO
- eeprom->high_current = (buf[0x02] & 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;
// Addr 02: Vendor ID
eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8);
// Addr 04: Product ID
eeprom->product_id = buf[0x04] + (buf[0x05] << 8);
- value = buf[0x06] + (buf[0x07]<<8);
- switch (value)
- {
- case 0x0600:
- eeprom->chip_type = TYPE_R;
- break;
- case 0x0400:
- eeprom->chip_type = TYPE_BM;
- break;
- case 0x0200:
- eeprom->chip_type = TYPE_AM;
- break;
- default: // Unknown device
- eeprom->chip_type = 0;
- break;
- }
+ eeprom->release = buf[0x06] + (buf[0x07]<<8);
// Addr 08: Config descriptor
// 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
// Bit 4: 1 if this device is battery powered
- j = buf[0x08];
- if (j&0x40) eeprom->self_powered = 1;
- if (j&0x20) eeprom->remote_wakeup = 1;
+ 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 = buf[0x09];
// Bit 6: 0 - reserved
// Bit 5: 0 - reserved
// Bit 4: 1 - Change USB version
+ // Not seen on FT2232(D)
// Bit 3: 1 - Use the serial number string
// Bit 2: 1 - Enable suspend pull downs for lower power
// Bit 1: 1 - Out EndPoint is Isochronous
// Bit 0: 1 - In EndPoint is Isochronous
//
- j = buf[0x0A];
- if (j&0x01) eeprom->in_is_isochronous = 1;
- if (j&0x02) eeprom->out_is_isochronous = 1;
- if (j&0x04) eeprom->suspend_pull_downs = 1;
- if (j&0x08) eeprom->use_serial = 1;
- if (j&0x10) eeprom->change_usb_version = 1;
+ 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]&0x08;
+ eeprom->change_usb_version = buf[0x0A]&0x10;
- // Addr 0B: Invert data lines
- eeprom->invert = buf[0x0B];
// Addr 0C: USB version low byte when 0x0A bit 4 is set
// Addr 0D: USB version high byte when 0x0A bit 4 is set
- if (eeprom->change_usb_version == 1)
+ if ((eeprom->change_usb_version == 1) || ftdi->type == TYPE_2232C)
{
eeprom->usb_version = buf[0x0C] + (buf[0x0D] << 8);
}
// Addr 0E: Offset of the manufacturer string + 0x80, calculated later
// Addr 0F: Length of manufacturer string
manufacturer_size = buf[0x0F]/2;
- if (manufacturer_size > 0) eeprom->manufacturer = malloc(manufacturer_size);
+ if (manufacturer_size > 0)
+ {
+ eeprom->manufacturer = malloc(manufacturer_size);
+ if (eeprom->manufacturer)
+ {
+ // Decode manufacturer
+ i = buf[0x0E] & (eeprom_size -1); // offset
+ for (j=0;j<manufacturer_size-1;j++)
+ {
+ eeprom->manufacturer[j] = buf[2*j+i+2];
+ }
+ eeprom->manufacturer[j] = '\0';
+ }
+ }
else eeprom->manufacturer = NULL;
// Addr 10: Offset of the product string + 0x80, calculated later
// Addr 11: Length of product string
product_size = buf[0x11]/2;
- if (product_size > 0) eeprom->product = malloc(product_size);
+ if (product_size > 0)
+ {
+ eeprom->product = malloc(product_size);
+ if(eeprom->product)
+ {
+ // Decode product name
+ i = buf[0x10] & (eeprom_size -1); // offset
+ for (j=0;j<product_size-1;j++)
+ {
+ eeprom->product[j] = buf[2*j+i+2];
+ }
+ eeprom->product[j] = '\0';
+ }
+ }
else eeprom->product = NULL;
// Addr 12: Offset of the serial string + 0x80, calculated later
// Addr 13: Length of serial string
serial_size = buf[0x13]/2;
- if (serial_size > 0) eeprom->serial = malloc(serial_size);
- else eeprom->serial = NULL;
-
- // Addr 14: CBUS function: CBUS0, CBUS1
- // Addr 15: CBUS function: CBUS2, CBUS3
- // Addr 16: CBUS function: CBUS5
- if (eeprom->chip_type == TYPE_R) {
- eeprom->cbus_function[0] = buf[0x14] & 0x0f;
- eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f;
- eeprom->cbus_function[2] = buf[0x15] & 0x0f;
- eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f;
- eeprom->cbus_function[4] = buf[0x16] & 0x0f;
- } else {
- for (j=0; j<5; j++) eeprom->cbus_function[j] = 0;
- }
-
- // Decode manufacturer
- i = buf[0x0E] & 0x7f; // offset
- for (j=0;j<manufacturer_size-1;j++)
- {
- eeprom->manufacturer[j] = buf[2*j+i+2];
- }
- eeprom->manufacturer[j] = '\0';
-
- // Decode product name
- i = buf[0x10] & 0x7f; // offset
- for (j=0;j<product_size-1;j++)
+ if (serial_size > 0)
{
- eeprom->product[j] = buf[2*j+i+2];
- }
- eeprom->product[j] = '\0';
-
- // Decode serial
- i = buf[0x12] & 0x7f; // offset
- for (j=0;j<serial_size-1;j++)
- {
- eeprom->serial[j] = buf[2*j+i+2];
+ eeprom->serial = malloc(serial_size);
+ if(eeprom->serial)
+ {
+ // Decode serial
+ i = buf[0x12] & (eeprom_size -1); // offset
+ for (j=0;j<serial_size-1;j++)
+ {
+ eeprom->serial[j] = buf[2*j+i+2];
+ }
+ eeprom->serial[j] = '\0';
+ }
}
- eeprom->serial[j] = '\0';
+ else eeprom->serial = NULL;
// verify checksum
checksum = 0xAAAA;
ftdi_error_return(-1,"EEPROM checksum error");
}
+ else if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM))
+ {
+ eeprom->chip = buf[14];
+ }
+ else if(ftdi->type == TYPE_2232C)
+ {
+ eeprom->chip = buf[14];
+ }
+ else if(ftdi->type == TYPE_R)
+ {
+ // Addr 0B: Invert data lines
+ // Works only on FT232R, not FT245R, but no way to distinguish
+ eeprom->invert = buf[0x0B];
+ // Addr 14: CBUS function: CBUS0, CBUS1
+ // Addr 15: CBUS function: CBUS2, CBUS3
+ // Addr 16: CBUS function: CBUS5
+ eeprom->cbus_function[0] = buf[0x14] & 0x0f;
+ eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f;
+ eeprom->cbus_function[2] = buf[0x15] & 0x0f;
+ eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f;
+ eeprom->cbus_function[4] = buf[0x16] & 0x0f;
+ }
+ else if ((ftdi->type == TYPE_2232H) ||(ftdi->type == TYPE_4232H))
+ {
+ 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;
+ }
+
+ if(verbose)
+ {
+ char *channel_mode[] = {"UART","245","CPU", "unknown", "OPTO"};
+ fprintf(stdout, "VID: 0x%04x\n",eeprom->vendor_id);
+ fprintf(stdout, "PID: 0x%04x\n",eeprom->product_id);
+ fprintf(stdout, "Release: 0x%04x\n",eeprom->release);
+
+ if(eeprom->self_powered)
+ fprintf(stdout, "Self-Powered%s", (eeprom->remote_wakeup)?", USB Remote Wake Up\n":"\n");
+ else
+ fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power*2,
+ (eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n");
+ if(eeprom->manufacturer)
+ fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer);
+ if(eeprom->product)
+ fprintf(stdout, "Product: %s\n",eeprom->product);
+ if(eeprom->serial)
+ fprintf(stdout, "Serial: %s\n",eeprom->serial);
+ fprintf(stdout, "Checksum : %04x\n", checksum);
+ if (ftdi->type >= TYPE_2232C)
+ fprintf(stdout,"Channel A has Mode %s%s%s\n",
+ channel_mode[eeprom->channel_a_type],
+ (eeprom->channel_a_driver)?" VCP":"",
+ (eeprom->high_current_a)?" High Currenr IO":"");
+ if (ftdi->type == TYPE_2232C)
+ fprintf(stdout,"Channel B has Mode %s%s%s\n",
+ channel_mode[eeprom->channel_b_type],
+ (eeprom->channel_b_driver)?" VCP":"",
+ (eeprom->high_current_b)?" High Currenr IO":"");
+ if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H))
+ {
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"AL":"A",
+ (eeprom->group0_drive+1) *4,
+ (eeprom->group0_schmitt)?" Schmitt Input":"",
+ (eeprom->group0_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"AH":"B",
+ (eeprom->group1_drive+1) *4,
+ (eeprom->group1_schmitt)?" Schmitt Input":"",
+ (eeprom->group1_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"BL":"C",
+ (eeprom->group2_drive+1) *4,
+ (eeprom->group2_schmitt)?" Schmitt Input":"",
+ (eeprom->group2_slew)?" Slow Slew":"");
+ fprintf(stdout,"%s has %d mA drive%s%s\n",
+ (ftdi->type == TYPE_2232H)?"BH":"D",
+ (eeprom->group3_drive+1) *4,
+ (eeprom->group3_schmitt)?" Schmitt Input":"",
+ (eeprom->group3_slew)?" Slow Slew":"");
+ }
+
+ }
+
return 0;
}
git://developer.intra2net.com / libftdi / blobdiff