/*
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_GRBEEP_H
#define _SYS_GRBEEP_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* grbeep.h : Grover beep driver header file.
*/
/*
* beeper start and stop values
*/
#define GRBEEP_START 0x03
#define GRBEEP_STOP 0x00
/*
* beeper control register value
*/
#define GRBEEP_CONTROL 0xb6
/*
* beeper 8354 input frequency is 1.193 Mhz.
* The value to be written in the timer
* register is the frequency divisor.
* The formula to find freq. divisoer would be
*
* divisor = GRBEEP_INPUT_FREQ / freq
*
*/
#define GRBEEP_INPUT_FREQ 1193000
#define GRBEEP_DIVISOR_MAX 1193000
#define GRBEEP_DIVISOR_MIN 18
/* Mode values */
#define GRBEEP_ON 0x01
#define GRBEEP_OFF 0x00
typedef volatile struct grbeep_freq_regs {
/* Frequency divisor register */
uint8_t grbeep_freq_regs_divisor;
/* Freqquency control register */
uint8_t grbeep_freq_regs_control;
} grbeep_freq_regs_t;
/*
* Beep driver state structure
*/
typedef struct grbeep_state {
/* Dip of grbeep device */
dev_info_t *grbeep_dip;
/* Frequency control and frequency divisor registers */
grbeep_freq_regs_t *grbeep_freq_regs;
/* Frequency control and frequency divisor reg handle */
ddi_acc_handle_t grbeep_freq_regs_handle;
/* Beep start/stop register */
uint8_t *grbeep_start_stop_reg;
/* Beep start/stop register handle */
ddi_acc_handle_t grbeep_start_stop_reg_handle;
/* If beeper is active or not */
int grbeep_mode;
} grbeep_state_t;
#define GRBEEP_WRITE_FREQ_CONTROL_REG(val) \
ddi_put8(grbeeptr->grbeep_freq_regs_handle, \
((uint8_t *)&grbeeptr->grbeep_freq_regs->grbeep_freq_regs_control), \
((int8_t)(val)))
#define GRBEEP_WRITE_FREQ_DIVISOR_REG(val) \
ddi_put8(grbeeptr->grbeep_freq_regs_handle, \
((uint8_t *)&grbeeptr->grbeep_freq_regs->grbeep_freq_regs_divisor), \
((int8_t)(val)))
#define GRBEEP_WRITE_START_STOP_REG(val) \
ddi_put8(grbeeptr->grbeep_start_stop_reg_handle, \
((uint8_t *)grbeeptr->grbeep_start_stop_reg), \
((int8_t)(val)))
#define GRBEEP_UNIT(dev) (getminor((dev)))
#ifdef __cplusplus
}
#endif
#endif /* _SYS_GRBEEP_H */