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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_USB_OHCI_POLLED_H
#define _SYS_USB_OHCI_POLLED_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Open Host Controller Driver (OHCI)
*
* The USB Open Host Controller driver is a software driver which interfaces
* to the Universal Serial Bus layer (USBA) and the USB Open Host Controller.
* The interface to USB Open Host Controller is defined by the OpenHCI Host
* Controller Interface.
*
* This header file describes the data structures required for the USB Open
* Host Controller Driver to work in POLLED mode which will be either OBP
* mode for Sparc architecture or PC PROM mode for X86 architecture
*/
#define POLLED_RAW_BUF_SIZE 8
/*
* These two flags are used to determine if this structure is already
* in use.
*/
#define POLLED_INPUT_MODE 0x01
#define POLLED_OUTPUT_MODE 0x10
/*
* These two flags are used to determine if this structure is already in
* use. We should only save off the controller state information once,
* restore it once. These flags are used for the ohci_polled_flags below.
*/
#define POLLED_INPUT_MODE_INUSE 0x04
#define POLLED_OUTPUT_MODE_INUSE 0x40
/*
* For ohci bandwidth of low speed interrupt devices limits,
* one host controller can support 6 keyboards only.
*/
#define MAX_NUM_FOR_KEYBOARD 0x6
/*
* State structure for the POLLED switch off
*/
typedef struct ohci_polled {
/*
* Pointer to the ohcip structure for the device that is to be
* used as input in polled mode.
*/
ohci_state_t *ohci_polled_ohcip;
/*
* Pipe handle for the pipe that is to be used as input device
* in POLLED mode.
*/
usba_pipe_handle_data_t *ohci_polled_input_pipe_handle;
/* Dummy endpoint descriptor */
ohci_ed_t *ohci_polled_dummy_ed;
/* Interrupt Endpoint descriptor */
ohci_ed_t *ohci_polled_ed; /* Interrupt endpoint */
/*
* The buffer that the usb scancodes are copied into.
*/
uchar_t *ohci_polled_buf;
/*
* This flag is used to determine if the state of the controller
* has already been saved (enter) or doesn't need to be restored
* yet (exit).
*/
uint_t ohci_polled_flags;
/*
* The read or write routines may take TD's of the done head that
* are not intended for them.
*/
ohci_td_t *ohci_polled_input_done_head;
/*
* This is the tail for the above ohci_polled_input_done_head;
*/
ohci_td_t *ohci_polled_input_done_tail;
/*
* ohci_hcdi_polled_input_enter() may be called
* multiple times before the ohci_hcdi_polled_input_exit() is called.
* For example, the system may:
* - go down to kmdb (ohci_hcdi_polled_input_enter())
* - down to the ok prompt, $q (ohci_hcdi_polled_input_enter())
* - back to kmdb, "go" (ohci_hcdi_polled_input_exit())
* - back to the OS, :c at kmdb (ohci_hcdi_polled_input_exit())
*
* polled_entry keeps track of how many times
* ohci_polled_input_enter/ohci_polled_input_exit have been
* called so that the host controller isn't switched back to OS mode
* prematurely.
*/
uint_t ohci_polled_entry;
/*
* Save the pointer usb device structure and the endpoint number
* during the polled initilization.
*/
usba_device_t *ohci_polled_usb_dev; /* USB device */
uint8_t ohci_polled_ep_addr;
boolean_t ohci_polled_no_sync_flag; /* For schizo bug */
} ohci_polled_t;
_NOTE(SCHEME_PROTECTS_DATA("Only accessed in POLLED mode",
ohci_polled_t::ohci_polled_flags))
_NOTE(DATA_READABLE_WITHOUT_LOCK(ohci_polled_t::ohci_polled_ohcip))
_NOTE(SCHEME_PROTECTS_DATA("Only accessed in POLLED mode",
ohci_polled_t::ohci_polled_entry))
#ifdef __cplusplus
}
#endif
#endif /* _SYS_USB_OHCI_POLLED_H */
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