/* * 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_KBTRANS_H #define _SYS_KBTRANS_H /* * Interface between hardware keyboard driver and generic keyboard * translation module. */ #ifdef __cplusplus extern "C" { #endif #include <sys/consdev.h> /* * The default value (0) indicates that the keyboard layout isn't * configured in kernel. */ #define KBTRANS_USBKB_DEFAULT_LAYOUT 0 /* * Maximum of keys in a keyboard */ #define KBTRANS_KEYNUMS_MAX 255 /* * Do not expose the internals of these structures to kbtrans clients */ struct kbtrans_hardware; struct kbtrans; enum kbtrans_message_response { KBTRANS_MESSAGE_HANDLED = 0, KBTRANS_MESSAGE_NOT_HANDLED = 1 }; typedef boolean_t (*polled_keycode_func)(struct kbtrans_hardware *, kbtrans_key_t *, enum keystate *); struct hw_polledio { void *polled_argument; polled_keycode_func *polled_keycode; }; /* * Callbacks registered by the hardware specific driver/module */ struct kbtrans_callbacks { /* Routine to set the LED's in non-polled mode */ void (*kbtrans_streams_setled)(struct kbtrans_hardware *, int); /* Routine to set the LED's in polled mode */ void (*kbtrans_polled_setled)(struct kbtrans_hardware *, int); /* Routine to indicate that a scande is available in polled mode */ boolean_t (*kbtrans_polled_keycheck)(struct kbtrans_hardware *, kbtrans_key_t *, enum keystate *); }; /* * kbtrans_streams_init(): * * Initializes the generic keyboard translation module. Must be * called from the hardware module's open(9e) routine. * * Arguments: * - queue_t *q * The read queue. * * - int sflag * sflag from the streams open routine * * - struct kbtrans_hardware *hw * hardware-specific data, passed to hardware callbacks * * - struct kbtrans_callbacks *hw_callbacks * hardware support callbacks (see below) * * - struct kbtrans **kbtrans * returned state structure pointer * * - int initial_leds * - int initial_led_mask * Provides state information (if available) about the current * keyboard state, in the form of LED state. initial_leds shows * which LEDs are lit; initial_led_mask shows which bits in * initial_leds are valid. This mechanism exists primarily to * retain the existing state of NumLock across the transition * from firmware to the OS. */ extern int kbtrans_streams_init(queue_t *, int, struct kbtrans_hardware *, struct kbtrans_callbacks *, struct kbtrans **, int, int); /* * kbtrans_streams_fini(): * * Shuts down the generic translation module. Must be called from * the hardware module's close(9e) routine. */ extern int kbtrans_streams_fini(struct kbtrans *); /* * kbtrans_streams_message(): * * The hardware module should pass all streams messages received from * above to this routine. The generic translation module will process * most of them, returning KBTRANS_MESSAGE_HANDLED for the ones that * it has handled and KBTRANS_MESSAGE_NOT_HANDLED for the ones that * it did not handle. For KBTRANS_MESSAGE_HANDLED, the hardware module * should take no further action on the message. For * KBTRANS_MESSAGE_NOT_HANDLED, the hardware module is responsible for * any action, including returning an appropriate error. * * Must be called from the hardware module's write put(9e) or srv(9e) * routine. */ extern enum kbtrans_message_response kbtrans_streams_message(struct kbtrans *, mblk_t *); /* * kbtrans_streams_key(): * * When a key is pressed or released, the hardware module should * call kbtrans, passing the key number and its new * state. kbtrans is responsible for autorepeat handling; * the hardware module should report only actual press/release * events, suppressing any hardware-generated autorepeat. */ extern void kbtrans_streams_key(struct kbtrans *, kbtrans_key_t key, enum keystate state); /* * kbtrans_streams_set_keyboard(): * * At any time after calling kbtrans_streams_init, the hardware * module should make this call to report the type of keyboard * attached. "type" is the keyboard type, typically KB_SUN4, * KB_PC, or KB_USB. */ extern void kbtrans_streams_set_keyboard(struct kbtrans *, int, struct keyboard *); /* * kbtrans_streams_has_reset(): * * At any time between kbtrans_streams_init and kbtrans_streams_fini, * the hardware module can call this routine to report that the * keyboard has been reset, e.g. by being unplugged and reattached. * * This function is for use by keyboard devices that do not formally * support hotplug. If the keyboard hardware spontaneously resets * itself in a case other than hotplug, this routine is called to * report the rest. * */ extern void kbtrans_streams_has_reset(struct kbtrans *); /* * kbtrans_ischar(): * kbtrans_getchar(): * * These routines are used for polled input, e.g. for kmdb or PROM * input. Note that, with suitable casting, these routines are usable * as CONSOPENPOLLEDIO routines. * * May only be called from single-threaded code, e.g. kmdb. */ extern boolean_t kbtrans_ischar(struct kbtrans *); extern int kbtrans_getchar(struct kbtrans *); /* * kbtrans_streams_enable(): * Routine to be called from the hardware specific module when * the stream is ready to take messages. */ extern void kbtrans_streams_enable(struct kbtrans *); /* * kbtrans_streams_setled(): * Routine to be called to only update the led state in kbtrans. */ extern void kbtrans_streams_setled(struct kbtrans *, int); /* * kbtrans_streams_releaseall(): * Release all the keys that are held down. */ extern void kbtrans_streams_releaseall(struct kbtrans *); /* * kbtrans_streams_set_queue(): * Change the queue above the device, to support multiplexors. */ extern void kbtrans_streams_set_queue(struct kbtrans *, queue_t *); /* * kbtrans_streams_get_queue(): * Retrieve the current queue above the device. */ extern queue_t *kbtrans_streams_get_queue(struct kbtrans *); /* * kbtrans_streams_untimeout(): * Clear timeout */ extern void kbtrans_streams_untimeout(struct kbtrans *); #ifdef __cplusplus } #endif #endif /* _SYS_KBTRANS_H */