+/////////////////////////////////////////////////////////////////////////////
+
+/// Prolific USB Bridge support. (PL2773) (Probably works on PL2771 also...)
+
+class usbprolific_device
+: public tunnelled_device<
+ /*implements*/ ata_device,
+ /*by tunnelling through a*/ scsi_device
+ >
+{
+public:
+ usbprolific_device(smart_interface * intf, scsi_device * scsidev,
+ const char * req_type);
+
+ virtual ~usbprolific_device() throw();
+
+ virtual bool ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out);
+};
+
+
+usbprolific_device::usbprolific_device(smart_interface * intf, scsi_device * scsidev,
+ const char * req_type)
+: smart_device(intf, scsidev->get_dev_name(), "usbprolific", req_type),
+ tunnelled_device<ata_device, scsi_device>(scsidev)
+{
+ set_info().info_name = strprintf("%s [USB Prolific]", scsidev->get_info_name());
+}
+
+usbprolific_device::~usbprolific_device() throw()
+{
+}
+
+bool usbprolific_device::ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out)
+{
+ if (!ata_cmd_is_supported(in,
+ ata_device::supports_data_out |
+ ata_device::supports_48bit_hi_null |
+ ata_device::supports_output_regs |
+ ata_device::supports_smart_status,
+ "Prolific" )
+ )
+ return false;
+
+ scsi_cmnd_io io_hdr;
+ memset(&io_hdr, 0, sizeof(io_hdr));
+ unsigned char cmd_rw = 0x10; // Read
+
+ switch (in.direction) {
+ case ata_cmd_in::no_data:
+ io_hdr.dxfer_dir = DXFER_NONE;
+ break;
+ case ata_cmd_in::data_in:
+ io_hdr.dxfer_dir = DXFER_FROM_DEVICE;
+ io_hdr.dxfer_len = in.size;
+ io_hdr.dxferp = (unsigned char *)in.buffer;
+ memset(in.buffer, 0, in.size);
+ break;
+ case ata_cmd_in::data_out:
+ io_hdr.dxfer_dir = DXFER_TO_DEVICE;
+ io_hdr.dxfer_len = in.size;
+ io_hdr.dxferp = (unsigned char *)in.buffer;
+ cmd_rw = 0x0; // Write
+ break;
+ default:
+ return set_err(EINVAL);
+ }
+
+ // Based on reverse engineering of iSmart.exe with API Monitor.
+ // Seen commands:
+ // D0 0 0 0 06 7B 0 0 0 0 0 0 // Read Firmware info?, reads 16 bytes
+ // F4 0 0 0 06 7B // ??
+ // D8 15 0 D8 06 7B 0 0 0 0 1 1 4F C2 A0 B0 // SMART Enable
+ // D8 15 0 D0 06 7B 0 0 2 0 1 1 4F C2 A0 B0 // SMART Read values
+ // D8 15 0 D1 06 7B 0 0 2 0 1 1 4F C2 A0 B0 // SMART Read thresholds
+ // D8 15 0 D4 06 7B 0 0 0 0 0 1 4F C2 A0 B0 // SMART Execute self test
+ // D7 0 0 0 06 7B 0 0 0 0 0 0 0 0 0 0 // Read status registers, Reads 16 bytes of data
+ // Additional DATA OUT support based on document from Prolific
+
+ // Build pass through command
+ unsigned char cdb[16];
+ cdb[ 0] = 0xD8; // Operation Code (D8 = Prolific ATA pass through)
+ cdb[ 1] = cmd_rw|0x5; // Read(0x10)/Write(0x0) | NORMAL(0x5)/PREFIX(0x0)(?)
+ cdb[ 2] = 0x0; // Reserved
+ cdb[ 3] = in.in_regs.features; // Feature register (SMART command)
+ cdb[ 4] = 0x06; // Check Word (VendorID magic, Prolific: 0x067B)
+ cdb[ 5] = 0x7B; // Check Word (VendorID magic, Prolific: 0x067B)
+ sg_put_unaligned_be32(io_hdr.dxfer_len, cdb + 6);
+ cdb[10] = in.in_regs.sector_count; // Sector Count
+ cdb[11] = in.in_regs.lba_low; // LBA Low (7:0)
+ cdb[12] = in.in_regs.lba_mid; // LBA Mid (15:8)
+ cdb[13] = in.in_regs.lba_high; // LBA High (23:16)
+ cdb[14] = in.in_regs.device | 0xA0; // Device/Head
+ cdb[15] = in.in_regs.command; // ATA Command Register (only PIO supported)
+ // Use '-r scsiioctl,1' to print CDB for debug purposes
+
+ io_hdr.cmnd = cdb;
+ io_hdr.cmnd_len = 16;
+
+ scsi_device * scsidev = get_tunnel_dev();
+ if (!scsidev->scsi_pass_through_and_check(&io_hdr,
+ "usbprolific_device::ata_pass_through: "))
+ return set_err(scsidev->get_err());
+
+ if (in.out_needed.is_set()) {
+ // Read ATA output registers
+ unsigned char regbuf[16] = {0, };
+ memset(&io_hdr, 0, sizeof(io_hdr));
+ io_hdr.dxfer_dir = DXFER_FROM_DEVICE;
+ io_hdr.dxfer_len = sizeof(regbuf);
+ io_hdr.dxferp = regbuf;
+
+ memset(cdb, 0, sizeof(cdb));
+ cdb[ 0] = 0xD7; // Prolific read registers
+ cdb[ 4] = 0x06; // Check Word (VendorID magic, Prolific: 0x067B)
+ cdb[ 5] = 0x7B; // Check Word (VendorID magic, Prolific: 0x067B)
+ io_hdr.cmnd = cdb;
+ io_hdr.cmnd_len = sizeof(cdb);
+
+ if (!scsidev->scsi_pass_through_and_check(&io_hdr,
+ "usbprolific_device::scsi_pass_through (get registers): "))
+ return set_err(scsidev->get_err());
+
+ // Use '-r scsiioctl,2' to print input registers for debug purposes
+ // Example: 50 00 00 00 00 01 4f 00 c2 00 a0 da 00 b0 00 50
+ out.out_regs.status = regbuf[0]; // Status
+ out.out_regs.error = regbuf[1]; // Error
+ out.out_regs.sector_count = regbuf[2]; // Sector Count (7:0)
+ out.out_regs.lba_low = regbuf[4]; // LBA Low (7:0)
+ out.out_regs.lba_mid = regbuf[6]; // LBA Mid (7:0)
+ out.out_regs.lba_high = regbuf[8]; // LBA High (7:0)
+ out.out_regs.device = regbuf[10]; // Device/Head
+ // = regbuf[11]; // ATA Feature (7:0)
+ // = regbuf[13]; // ATA Command
+ }
+
+ return true;
+}
+
+