2 /* vcc.c: sun4v virtual channel concentrator
45 /* Microseconds that thread will delay waiting for a vcc port ref */
107  * vcc_table_add() - Add VCC port to the VCC table
108  * @port: pointer to the VCC port
110  * Return: index of the port in the VCC table on success,
134  * vcc_table_remove() - Removes a VCC port from the VCC table
135  * @index: Index into the VCC table
150  * vcc_get() - Gets a reference to VCC port
151  * @index: Index into the VCC table
154  * Return: reference to the VCC port, if found
200  * vcc_put() - Returns a reference to VCC port
201  * @port: pointer to VCC port
231  * vcc_get_ne() - Get a non-exclusive reference to VCC port
232  * @index: Index into the VCC table
234  * Gets a non-exclusive reference to VCC port, if it's not removed
236  * Return: pointer to the VCC port, if found
315 		vccdbg("VCC: reset rx q: rv=%d\n", rv);  in vcc_ldc_read()
332 		vccdbg("VCC: ldc_read()=%d\n", rv);  in vcc_ldc_read()
342 			pr_err("VCC: unknown msg [%02x:%02x:%04x:%08x]\n",  in vcc_ldc_read()
409 		vccdbg("VCC: ldc_write()=%d\n", rv);  in vcc_tx_timer()
426  * @arg: VCC private data
429  * Handles LDC events for VCC
456 		pr_err("VCC: unexpected LDC event(%d)\n", event);  in vcc_event()
503 	vccdbg("VCC: ldc_write(%ld)=%d\n", sizeof(pkt.tag), rv);  in vcc_send_ctl()
548  * vcc_probe() - Initialize VCC port
549  * @vdev: Pointer to VIO device of the new VCC port
552  * Initializes a VCC port to receive serial console data from
569 	vccdbg("VCC: name=%s\n", dev_name(&vdev->dev));  in vcc_probe()
572 		pr_err("VCC: TTY driver not registered\n");  in vcc_probe()
598 		pr_err("VCC: no more TTY indices left for allocation\n");  in vcc_probe()
603 	/* Register the device using VCC table index as TTY index */  in vcc_probe()
619 	domain = mdesc_get_property(hp, node, "vcc-domain-name", NULL);  in vcc_probe()
663  * vcc_remove() - Terminate a VCC port
664  * @vdev: Pointer to VIO device of the VCC port
666  * Terminates a VCC port. Sets up the teardown of TTY and
685 	/* Get exclusive reference to VCC, ensures that there are no other  in vcc_remove()
710 		.type = "vcc-port",
720 	.name		= "vcc",
732 		pr_err("VCC: open: Failed to find VCC port\n");  in vcc_open()
737 		pr_err("VCC: open: LDC channel not configured\n");  in vcc_open()
746 		pr_err("VCC: open: TTY port not found\n");  in vcc_open()
751 		pr_err("VCC: open: TTY ops not defined\n");  in vcc_open()
764 		pr_err("VCC: close: TTY port not found\n");  in vcc_close()
789 		pr_err("VCC: hangup: Failed to find VCC port\n");  in vcc_hangup()
794 		pr_err("VCC: hangup: TTY port not found\n");  in vcc_hangup()
818 		pr_err("VCC: write: Failed to find VCC port");  in vcc_write()
844 		/* Since we know we have enough room in VCC buffer for tosend  in vcc_write()
849 		vccdbg("VCC: write: ldc_write(%d)=%d\n",  in vcc_write()
866 	vccdbg("VCC: write: total=%d rv=%d", total_sent, rv);  in vcc_write()
878 		pr_err("VCC: write_room: Failed to find VCC port\n");  in vcc_write_room()
896 		pr_err("VCC: chars_in_buffer: Failed to find VCC port\n");  in vcc_chars_in_buffer()
914 		pr_err("VCC: break_ctl: Failed to find VCC port\n");  in vcc_break_ctl()
955 		pr_err("VCC: install: Failed to find VCC port\n");  in vcc_install()
1015 		pr_err("VCC: TTY driver alloc failed\n");  in vcc_tty_init()
1019 	vcc_tty_driver->driver_name = "vcc";  in vcc_tty_init()
1020 	vcc_tty_driver->name = "vcc";  in vcc_tty_init()
1030 		pr_err("VCC: TTY driver registration failed\n");  in vcc_tty_init()
1036 	vccdbg("VCC: TTY driver registered\n");  in vcc_tty_init()
1045 	vccdbg("VCC: TTY driver unregistered\n");  in vcc_tty_exit()
1056 		pr_err("VCC: TTY init failed\n");  in vcc_init()
1062 		pr_err("VCC: VIO driver registration failed\n");  in vcc_init()
1065 		vccdbg("VCC: VIO driver registered successfully\n");  in vcc_init()
1074 	vccdbg("VCC: VIO driver unregistered\n");  in vcc_exit()
1076 	vccdbg("VCC: TTY driver unregistered\n");  in vcc_exit()