usb/host/xhci-mem.c

98  * Change the last TRB in the prev segment to be a Link TRB which points to the
115 		/* Set the last TRB in the segment to have a TRB type ID of Link TRB */
166  * us which stream ring the TRB came from.  We could store the stream ID in an
286 /* XXX: Do we need the hcd structure in all these functions? */
551  * vary in size, based on:
589  * The number of stream contexts in the stream context array may be bigger than
672 	/* Leave the other unused stream ring pointers in the stream context
713 	 * number we're actually using.  Must be in 2^(MaxPstreams + 1) format.
845 /* All the xhci_tds in the ring's TD list should be freed at this point.
968 	/* Allocate the (output) device context that will be used in the HC. */
998 	/* Point to output device context in dcbaa. */
1044  * The xHCI roothub may have ports of differing speeds in any order in the port
1182 	/* Steps 7 and 8 were done in xhci_alloc_virt_device() */
1207 		 * Full speed isoc endpoints specify interval in frames,
1218  * Convert bInterval expressed in microframes (in 1-255 range) to exponent of
1258  * The polling interval is expressed in "microframes".  If xHCI's Interval field
1313 /* The "Mult" field in the endpoint context is only set for SuperSpeed isoc eps.
1315  * transaction opportunities per microframe", but that goes in the Max Burst
1330 	/* Super speed and Plus have max burst in ep companion desc */
1344 	int in;
1346 	in = usb_endpoint_dir_in(&ep->desc);
1352 		return in ? BULK_IN_EP : BULK_OUT_EP;
1354 		return in ? ISOC_IN_EP : ISOC_OUT_EP;
1356 		return in ? INT_IN_EP : INT_OUT_EP;
1387 	/* A 0 in max burst means 1 transfer per ESIT */
1538 		 * set in the first place.
1559 			/* Number of packets and mult are zero-based in the
2034 	/* Port offset and count in the third dword, see section 7.2 */
2126 	/* FIXME: Should we disable ports not in the Extended Capabilities? */
2158  * speed bits in the PORTSC register being correct until a device is connected,
2329 	/* set ERST count with the number of entries in the segment table */
2419 	 * Program the Number of Device Slots Enabled field in the CONFIG
2449 	 * and our use of dma addresses in the trb_address_map radix tree needs
2490 	/* Set the address in the Command Ring Control register */