Add possibility of bulk reading with short timeout
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parent
aa86530e38
commit
d556277751
4 changed files with 26 additions and 10 deletions
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@ -654,7 +654,7 @@ grub_ohci_transaction (grub_ohci_td_t td,
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static grub_usb_err_t
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grub_ohci_transfer (grub_usb_controller_t dev,
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grub_usb_transfer_t transfer)
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grub_usb_transfer_t transfer, int timeout)
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{
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struct grub_ohci *o = (struct grub_ohci *) dev->data;
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grub_ohci_ed_t ed_virt;
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@ -832,7 +832,7 @@ grub_ohci_transfer (grub_usb_controller_t dev,
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}
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/* Safety measure to avoid a hang. */
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maxtime = grub_get_time_ms () + 1000;
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maxtime = grub_get_time_ms () + timeout;
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/* Wait until the transfer is completed or STALLs. */
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do
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@ -436,7 +436,8 @@ grub_uhci_transaction (struct grub_uhci *u, unsigned int endp,
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static grub_usb_err_t
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grub_uhci_transfer (grub_usb_controller_t dev,
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grub_usb_transfer_t transfer)
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grub_usb_transfer_t transfer,
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int timeout)
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{
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struct grub_uhci *u = (struct grub_uhci *) dev->data;
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grub_uhci_qh_t qh;
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@ -496,7 +497,7 @@ grub_uhci_transfer (grub_usb_controller_t dev,
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/* Wait until either the transaction completed or an error
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occurred. */
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endtime = grub_get_time_ms () + 1000;
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endtime = grub_get_time_ms () + timeout;
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for (;;)
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{
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grub_uhci_td_t errtd;
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@ -145,7 +145,7 @@ grub_usb_control_msg (grub_usb_device_t dev,
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transfer->transactions[datablocks + 1].toggle = 1;
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err = dev->controller.dev->transfer (&dev->controller, transfer);
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err = dev->controller.dev->transfer (&dev->controller, transfer, 1000);
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grub_dprintf ("usb", "control: err=%d\n", err);
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grub_free (transfer->transactions);
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@ -162,7 +162,7 @@ grub_usb_control_msg (grub_usb_device_t dev,
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static grub_usb_err_t
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grub_usb_bulk_readwrite (grub_usb_device_t dev,
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int endpoint, grub_size_t size0, char *data_in,
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grub_transfer_type_t type)
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grub_transfer_type_t type, int timeout)
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{
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int i;
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grub_usb_transfer_t transfer;
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@ -243,7 +243,7 @@ grub_usb_bulk_readwrite (grub_usb_device_t dev,
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size -= tr->size;
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}
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err = dev->controller.dev->transfer (&dev->controller, transfer);
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err = dev->controller.dev->transfer (&dev->controller, transfer, timeout);
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/* We must remember proper toggle value even if some transactions
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* were not processed - correct value should be inversion of last
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* processed transaction (TD). */
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@ -269,7 +269,7 @@ grub_usb_bulk_write (grub_usb_device_t dev,
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int endpoint, grub_size_t size, char *data)
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{
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return grub_usb_bulk_readwrite (dev, endpoint, size, data,
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GRUB_USB_TRANSFER_TYPE_OUT);
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GRUB_USB_TRANSFER_TYPE_OUT, 1000);
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}
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grub_usb_err_t
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@ -277,5 +277,14 @@ grub_usb_bulk_read (grub_usb_device_t dev,
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int endpoint, grub_size_t size, char *data)
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{
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return grub_usb_bulk_readwrite (dev, endpoint, size, data,
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GRUB_USB_TRANSFER_TYPE_IN);
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GRUB_USB_TRANSFER_TYPE_IN, 1000);
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}
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grub_usb_err_t
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grub_usb_bulk_read_timeout (grub_usb_device_t dev,
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int endpoint, grub_size_t size, char *data,
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int timeout)
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{
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return grub_usb_bulk_readwrite (dev, endpoint, size, data,
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GRUB_USB_TRANSFER_TYPE_IN, timeout);
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}
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@ -50,6 +50,7 @@ typedef enum
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enum
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{
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GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT = 0x21,
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GRUB_USB_REQTYPE_VENDOR_OUT = 0x40
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};
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@ -103,7 +104,8 @@ struct grub_usb_controller_dev
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int (*iterate) (int (*hook) (grub_usb_controller_t dev));
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grub_usb_err_t (*transfer) (grub_usb_controller_t dev,
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grub_usb_transfer_t transfer);
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grub_usb_transfer_t transfer,
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int timeout);
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int (*hubports) (grub_usb_controller_t dev);
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@ -235,5 +237,9 @@ void grub_usb_unregister_attach_hook_class (struct grub_usb_attach_desc *desc);
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void grub_usb_poll_devices (void);
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void grub_usb_device_attach (grub_usb_device_t dev);
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grub_usb_err_t
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grub_usb_bulk_read_timeout (grub_usb_device_t dev,
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int endpoint, grub_size_t size, char *data,
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int timeout);
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#endif /* GRUB_USB_H */
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