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      1 /* $NetBSD: tadpmureg.h,v 1.3 2020/05/16 07:16:14 jdc Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2018 Michael Lorenz <macallan (at) netbsd.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /* registers and commands for the PMU found in Tadpole SPARCle/Viper laptops */
     30 
     31 #ifndef TADPMUREG_H
     32 #define TADPMUREG_H
     33 
     34 /* all values were found by looking at OF methods on the tadpmu node */
     35 
     36 /* these registers live in the pckbc's address space */
     37 #define TADPMU_CMD	0x6
     38 #define TADPMU_STATUS	0x6
     39 #define TADPMU_DATA	0x2
     40 
     41 #define STATUS_HAVE_DATA	0x01	/* response from command */
     42 #define STATUS_CMD_IN_PROGRESS	0x02
     43 #define STATUS_INTR		0x04	/* interrupt happened, read data to ack */
     44 #define STATUS_SEND_DATA	0x08	/* cmd waiting for data */
     45 
     46 #define CMD_SET_OPMODE		0x41	/* not sure what exactly this does... */
     47 #define		OPMODE_UNIX	0x75	/* other than toggling the UNIX mode  */
     48 #define		OPMODE_OF	0x67	/* bit in the GENSTAT register        */
     49 #define		OPMODE_DBG_ON	0x64	/* Debug ON */
     50 #define		OPMODE_DBG_OFF	0x6E	/* Debug OFF */
     51 #define		OPMODE_OBP	0x6F
     52 #define CMD_CHRGCTL		0x42
     53 #define CMD_SET_BACKLIGHT	0x43	/* apparently 0 - 1f */
     54 #define CMD_SET_CPUSPEED	0x44	/* in 10MHz, so 120 == 1.2GHz */
     55 #define CMD_SET_SPREADCLK	0x45
     56 #define CMD_SET_FANSPEED	0x46
     57 #define CMD_SET_VOLUME		0x48	/* beeper volume */
     58 #define CMD_SET_DIR_CLK		0x80
     59 #define CMD_WRITE		0xC0
     60 
     61 #define CMD_READ_GENSTAT	0x10
     62 #define CMD_READ_BACKLIGHT	0x11
     63 #define CMD_READ_SYSTEMP	0x12	/* temperature */
     64 #define CMD_READ_VOLUME		0x13
     65 #define CMD_READ_VBATT		0x14	/* Voltage * 10 (e.g. 120 = 12.0v) */
     66 #define CMD_READ_VERSION	0x15
     67 #define CMD_READ_CPUSPEED	0x16
     68 #define CMD_READ_KEYSTAT	0x17	/* Pause-A, D, N, O, R */
     69 #define CMD_READ_FAN_EN		0x18	/* Fan(s): off=0x00, full=0x77 */
     70 #define CMD_READ_GENSTAT2	0x19
     71 #define READ_DIPSWITCH		0x1A
     72 
     73 #define CMD_READ_FANSPEED	0x50	/* takes a parameter, returns nothing? */
     74 
     75 #define CMD_SHUTDOWN		0x40
     76 #define CMD_BEEP		0x47	/* Start/stop beep, param is freq */
     77 #define CMD_READ_BMU		0x70
     78 #define CMD_REFLASH		0x49
     79 #define CMD_READ		0x89
     80 #define CMD_WRITE		0xC0
     81 #define CMD_WRITE_BMU		0xC1
     82 
     83 /* these are according to the ROM methods
     84    #define GENSTAT_DC_PRESENT		0x01
     85    #define GENSTAT_DC_ENABLE		0x02
     86    #define GENSTAT_BATTERY_PRESENT	0x04
     87    #define GENSTAT_BATTERY_CHARGING	0x08
     88    #define GENSTAT_LID_CLOSED		0x10
     89    #define GENSTAT_UNIX_MODE		0x20
     90    #define GENSTAT_SPREADSPECTRUM	0x40
     91 
     92    Values of genstat (from observation)
     93    0b = on battery
     94    3b = battery charging
     95    1f = battery full
     96    1b = no battery
     97  */
     98 #define GENSTAT_UNIX_MODE		0x01
     99 #define GENSTAT_BATTERY_PRESENT		0x04	/* only valid if DC present? */
    100 #define GENSTAT_BATTERY_CHARGED		0x08
    101 #define GENSTAT_DC_PRESENT		0x10
    102 #define GENSTAT_BATTERY_CHARGING	0x20
    103 #define GENSTAT_LID_CLOSED		0x80
    104 
    105 #define GENSTAT_STATE_BATTERY_FULL	0x1f
    106 #define GENSTAT_STATE_BATTERY_DISCHARGE	0x0b
    107 #define GENSTAT_STATE_BATTERY_CHARGE	0x3b
    108 
    109 #define GENSTAT2_DEBUG		0x01		/* PMU debug enable? */
    110 #define GENSTAT2_MUTE		0x02
    111 
    112 /* messages from interrupts */
    113 #define TADPMU_INTR_BATTERY_CHARGED	0x03
    114 #define TADPMU_INTR_DCPOWER		0x04
    115 #define TADPMU_INTR_LID			0x05
    116 #define TADPMU_INTR_POWERBUTTON		0x06
    117 #define TADPMU_INTR_BATTERY_VOLT	0xcd	/* Voltage change */
    118 #define TADPMU_INTR_BATTERY_STATE	0xd6	/* e.g. warn -> crit */
    119 /* Other observed values:
    120     0xc9
    121     0xcb
    122     0xd2
    123  */
    124 
    125 #endif /* TADPMUREG_H */
    126