/**
* \brief Send a SCSI command to a port (for usb scsi ports)
*
* \param port a #GPPort
* \param to_dev data direction, set to 1 for a scsi cmd which sends
* data to the device, set to 0 for cmds which read data from the dev.
* \param cmd buffer holding the command to send
* \param cmd_size sizeof cmd buffer
* \param sense buffer for returning scsi sense information
* \param sense_size sizeof sense buffer
* \param data buffer containing informatino to write to the device
* (to_dev is 1), or to store data read from the device (to_dev 0).
*
* Send a SCSI command to a usb scsi port attached device.
*
* \return a gphoto2 error code
**/
int gp_port_send_scsi_cmd (GPPort *port, int to_dev,
char *cmd, int cmd_size,
char *sense, int sense_size,
char *data, int data_size)
{
int retval;
GP_LOG_DATA (cmd, cmd_size, "Sending scsi cmd:");
if (to_dev && data_size)
GP_LOG_DATA (data, data_size, "with scsi cmd data:");
C_PARAMS (port);
CHECK_INIT (port);
memset (sense, 0, sense_size);
CHECK_SUPP (port, "send_scsi_cmd", port->pc->ops->send_scsi_cmd);
retval = port->pc->ops->send_scsi_cmd (port, to_dev, cmd, cmd_size,
sense, sense_size, data, data_size);
GP_LOG_D ("scsi cmd result: %d", retval);
if (sense[0] != 0) {
GP_LOG_DATA (sense, sense_size, "sense data:");
/* https://secure.wikimedia.org/wikipedia/en/wiki/Key_Code_Qualifier */
GP_LOG_D ("sense decided:");
if ((sense[0]&0x7f)!=0x70) {
GP_LOG_D ("\tInvalid header.");
}
GP_LOG_D ("\tCurrent command read filemark: %s",(sense[2]&0x80)?"yes":"no");
GP_LOG_D ("\tEarly warning passed: %s",(sense[2]&0x40)?"yes":"no");
GP_LOG_D ("\tIncorrect blocklengt: %s",(sense[2]&0x20)?"yes":"no");
GP_LOG_D ("\tSense Key: %d",sense[2]&0xf);
if (sense[0]&0x80)
GP_LOG_D ("\tResidual Length: %d",sense[3]*0x1000000+sense[4]*0x10000+sense[5]*0x100+sense[6]);
GP_LOG_D ("\tAdditional Sense Length: %d",sense[7]);
GP_LOG_D ("\tAdditional Sense Code: %d",sense[12]);
GP_LOG_D ("\tAdditional Sense Code Qualifier: %d",sense[13]);
if (sense[15]&0x80) {
GP_LOG_D ("\tIllegal Param is in %s",(sense[15]&0x40)?"the CDB":"the Data Out Phase");
if (sense[15]&0x8) {
GP_LOG_D ("Pointer at %d, bit %d",sense[16]*256+sense[17],sense[15]&0x7);
}
}
}
if (!to_dev && data_size)
GP_LOG_DATA (data, data_size, "scsi cmd data:");
return retval;
}
/**
* \brief Send a USB control message with output data
*
* \param port a GPPort
* \param request control request code
* \param value control value
* \param index control index
* \param bytes pointer to data
* \param size size of the data
*
* Sends a specific USB control command and write associated data.
*
* \return a gphoto2 error code
*/
int
gp_port_usb_msg_write (GPPort *port, int request, int value, int index,
char *bytes, int size)
{
int retval;
GP_LOG_DATA (bytes, size, "Writing message (request=0x%x value=0x%x index=0x%x size=%i=0x%x):",
request, value, index, size, size);
C_PARAMS (port);
CHECK_INIT (port);
CHECK_SUPP (port, "msg_write", port->pc->ops->msg_write);
retval = port->pc->ops->msg_write(port, request, value, index, bytes, size);
CHECK_RESULT (retval);
return (retval);
}
static void LIBUSB_CALL
_cb_irq(struct libusb_transfer *transfer)
{
struct _GPPortPrivateLibrary *pl = transfer->user_data;
int i;
GP_LOG_D("%p with status %d", transfer, transfer->status);
if ( (transfer->status == LIBUSB_TRANSFER_CANCELLED) ||
(transfer->status == LIBUSB_TRANSFER_TIMED_OUT) || /* on close */
(transfer->status == LIBUSB_TRANSFER_NO_DEVICE) /* on removing camera */
) {
/* Only requeue the global transfers, not temporary ones */
for (i = 0; i < sizeof(pl->transfers)/sizeof(pl->transfers[0]); i++) {
if (pl->transfers[i] == transfer) {
libusb_free_transfer (transfer);
pl->transfers[i] = NULL;
return;
}
}
return;
}
if (transfer->status != LIBUSB_TRANSFER_COMPLETED) {
GP_LOG_D("transfer %p should be in LIBUSB_TRANSFER_COMPLETED, but is %d!", transfer, transfer->status);
return;
}
if (transfer->actual_length) {
GP_LOG_DATA ((char*)transfer->buffer, transfer->actual_length, "interrupt");
pl->irqs = realloc(pl->irqs, sizeof(pl->irqs[0])*(pl->nrofirqs+1));
pl->irqlens = realloc(pl->irqlens, sizeof(pl->irqlens[0])*(pl->nrofirqs+1));
pl->irqlens[pl->nrofirqs] = transfer->actual_length;
pl->irqs[pl->nrofirqs] = malloc(transfer->actual_length);
memcpy(pl->irqs[pl->nrofirqs],transfer->buffer,transfer->actual_length);
pl->nrofirqs++;
}
GP_LOG_D("requeuing complete transfer %p", transfer);
LOG_ON_LIBUSB_E(libusb_submit_transfer(transfer));
return;
}
/* This function reads the Microsoft OS Descriptor and looks inside to
* find if it is a MTP device. This is the similar to the way that
* Windows Media Player 10 uses.
* It is documented to some degree on various internet pages.
*/
static int
gp_libusb1_match_mtp_device(struct libusb_device *dev,int *configno, int *interfaceno, int *altsettingno)
{
/* Marcus: Avoid this probing altogether, its too unstable on some devices */
return 0;
#if 0
char buf[1000], cmd;
int ret,i,i1,i2, xifaces,xnocamifaces;
usb_dev_handle *devh;
/* All of them are "vendor specific" device class */
#if 0
if ((desc.bDeviceClass!=0xff) && (desc.bDeviceClass!=0))
return 0;
#endif
if (dev->config) {
xifaces = xnocamifaces = 0;
for (i = 0; i < desc.bNumConfigurations; i++) {
unsigned int j;
for (j = 0; j < dev->config[i].bNumInterfaces; j++) {
int k;
xifaces++;
for (k = 0; k < dev->config[i].interface[j].num_altsetting; k++) {
struct usb_interface_descriptor *intf = &dev->config[i].interface[j].altsetting[k];
if ( (intf->bInterfaceClass == LIBUSB_CLASS_HID) ||
(intf->bInterfaceClass == LIBUSB_CLASS_PRINTER) ||
(intf->bInterfaceClass == LIBUSB_CLASS_AUDIO) ||
(intf->bInterfaceClass == LIBUSB_CLASS_HUB) ||
(intf->bInterfaceClass == LIBUSB_CLASS_COMM) ||
(intf->bInterfaceClass == 0xe0) /* wireless/bluetooth*/
)
xnocamifaces++;
}
}
}
}
if (xifaces == xnocamifaces) /* only non-camera ifaces */
return 0;
devh = usb_open (dev);
if (!devh)
return 0;
/*
* Loop over the device configurations and interfaces. Nokia MTP-capable
* handsets (possibly others) typically have the string "MTP" in their
* MTP interface descriptions, that's how they can be detected, before
* we try the more esoteric "OS descriptors" (below).
*/
if (dev->config) {
for (i = 0; i < desc.bNumConfigurations; i++) {
unsigned int j;
for (j = 0; j < dev->config[i].bNumInterfaces; j++) {
int k;
for (k = 0; k < dev->config[i].interface[j].num_altsetting; k++) {
buf[0] = '\0';
ret = usb_get_string_simple(devh,
dev->config[i].interface[j].altsetting[k].iInterface,
(char *) buf,
1024);
if (ret < 3)
continue;
if (strcmp((char *) buf, "MTP") == 0) {
GP_LOG_D ("Configuration %d, interface %d, altsetting %d:\n", i, j, k);
GP_LOG_D (" Interface description contains the string \"MTP\"\n");
GP_LOG_D (" Device recognized as MTP, no further probing.\n");
goto found;
}
}
}
}
}
/* get string descriptor at 0xEE */
ret = usb_get_descriptor (devh, 0x03, 0xee, buf, sizeof(buf));
if (ret > 0) GP_LOG_DATA (buf, ret, "get_MS_OSD");
if (ret < 10) goto errout;
if (!((buf[2] == 'M') && (buf[4]=='S') && (buf[6]=='F') && (buf[8]=='T')))
goto errout;
cmd = buf[16];
ret = usb_control_msg (devh, USB_ENDPOINT_IN|USB_RECIP_DEVICE|LIBUSB_REQUEST_TYPE_VENDOR, cmd, 0, 4, buf, sizeof(buf), 1000);
if (ret == -1) {
GP_LOG_E ("control message says %d\n", ret);
goto errout;
}
if (buf[0] != 0x28) {
GP_LOG_E ("ret is %d, buf[0] is %x\n", ret, buf[0]);
goto errout;
}
if (ret > 0) GP_LOG_DATA (buf, ret, "get_MS_ExtDesc");
if ((buf[0x12] != 'M') || (buf[0x13] != 'T') || (buf[0x14] != 'P')) {
GP_LOG_E ("buf at 0x12 is %02x%02x%02x\n", buf[0x12], buf[0x13], buf[0x14]);
goto errout;
}
ret = usb_control_msg (devh, USB_ENDPOINT_IN|USB_RECIP_DEVICE|LIBUSB_REQUEST_TYPE_VENDOR, cmd, 0, 5, buf, sizeof(buf), 1000);
if (ret == -1) goto errout;
if (buf[0] != 0x28) {
GP_LOG_E ("ret is %d, buf[0] is %x\n", ret, buf[0]);
goto errout;
}
if (ret > 0) GP_LOG_DATA (buf, ret, "get_MS_ExtProp");
if ((buf[0x12] != 'M') || (buf[0x13] != 'T') || (buf[0x14] != 'P')) {
GP_LOG_E ("buf at 0x12 is %02x%02x%02x\n", buf[0x12], buf[0x13], buf[0x14]);
goto errout;
}
found:
usb_close (devh);
/* Now chose a nice interface for us to use ... Just take the first. */
if (desc.bNumConfigurations > 1)
GP_LOG_E ("The device has %d configurations!\n", desc.bNumConfigurations);
for (i = 0; i < desc.bNumConfigurations; i++) {
struct usb_config_descriptor *config =
&dev->config[i];
if (config->bNumInterfaces > 1)
GP_LOG_E ("The configuration has %d interfaces!\n", config->bNumInterfaces);
for (i1 = 0; i1 < config->bNumInterfaces; i1++) {
struct usb_interface *interface =
&config->interface[i1];
if (interface->num_altsetting > 1)
GP_LOG_E ("The interface has %d altsettings!\n", interface->num_altsetting);
for (i2 = 0; i2 < interface->num_altsetting; i2++) {
*configno = i;
*interfaceno = i1;
*altsettingno = i2;
return 1;
}
}
}
return 1;
errout:
usb_close (devh);
return 0;
#endif
}
