usb/host/uhci-hub.c

22 		HUB_CHAR_INDV_PORT_OCPM, /* (per-port OC, no power switching) */
38 /* suspend/resume bits: port suspended or port resuming */
41 /* A port that either is connected or has a changed-bit set will prevent
46 	int port;
48 	for (port = 0; port < uhci->rh_numports; ++port) {
49 		if ((uhci_readw(uhci, USBPORTSC1 + port * 2) &
51 				test_bit(port, &uhci->port_c_suspend))
59 	int port;
72 	for (port = 0; port < uhci->rh_numports; ++port) {
73 		if ((uhci_readw(uhci, USBPORTSC1 + port * 2) & mask) ||
74 				test_bit(port, &uhci->port_c_suspend))
75 			*buf |= (1 << (port + 1));
96 static void uhci_finish_suspend(struct uhci_hcd *uhci, int port,
104 		if (test_bit(port, &uhci->resuming_ports))
105 			set_bit(port, &uhci->port_c_suspend);
118 	clear_bit(port, &uhci->resuming_ports);
119 	usb_hcd_end_port_resume(&uhci_to_hcd(uhci)->self, port);
139 	unsigned int port;
143 	for (port = 0; port < uhci->rh_numports; ++port) {
144 		port_addr = USBPORTSC1 + 2 * port;
156 				/* If the port was enabled before, turning
157 				 * reset on caused a port enable change.
158 				 * Turning reset off causes a port connect
165 			if (!test_bit(port, &uhci->resuming_ports)) {
168 				set_bit(port, &uhci->resuming_ports);
172 						&uhci_to_hcd(uhci)->self, port);
174 				/* Make sure we see the port again
180 				uhci_finish_suspend(uhci, port, port_addr);
203 		/* if port change, ask to be resumed */
211 		/* if port change, auto start */
248 	unsigned int port = wIndex - 1;
249 	unsigned long port_addr = USBPORTSC1 + 2 * port;
264 		if (port >= uhci->rh_numports)
286 		if (test_bit(port, &uhci->port_c_suspend)) {
290 		if (test_bit(port, &uhci->resuming_ports))
310 			dev_dbg(uhci_dev(uhci), "port %d portsc %04x,%02x\n",
328 		if (port >= uhci->rh_numports)
339 			uhci_finish_suspend(uhci, port, port_addr);
353 		if (port >= uhci->rh_numports)
361 			uhci_finish_suspend(uhci, port, port_addr);
369 				/* Make certain the port isn't suspended */
370 				uhci_finish_suspend(uhci, port, port_addr);
371 			} else if (!test_and_set_bit(port,
376 				 * if the port is disabled.  When this happens
381 					uhci_finish_suspend(uhci, port,
390 			clear_bit(port, &uhci->port_c_suspend);