/*      $OpenBSD: viasioreg.h,v 1.3 2006/02/24 11:16:17 grange Exp $    */
/*
 * Copyright (c) 2005 Alexander Yurchenko <grange@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _DEV_ISA_VIASIOREG_H_
#define _DEV_ISA_VIASIOREG_H_

/*
 * VIA VT1211 LPC Super I/O register definitions.
 */

/*
 * Obtained from the following datasheet:
 *
 * VT1211
 * Low Pin Count Super I/O And Hardware Monitor
 * Revision 1.0
 * January 8, 2002
 * VIA TECHNOLOGIES, INC.
 */

/* ISA bus registers */
#define VT1211_INDEX            0x00    /* Configuration Index Register */
#define VT1211_DATA             0x01    /* Configuration Data Register */

#define VT1211_IOSIZE           0x02    /* ISA I/O space size */

#define VT1211_CONF_EN_MAGIC    0x87    /* enable configuration mode */
#define VT1211_CONF_DS_MAGIC    0xaa    /* disable configuration mode */

/* Configuration Space Registers */
#define VT1211_LDN              0x07    /* Logical Device Number */
#define VT1211_ID               0x20    /* Device ID */
#define VT1211_REV              0x21    /* Device Revision */
#define VT1211_PDC              0x22    /* Power Down Control */
#define VT1211_LPCWSS           0x23    /* LPC Wait State Select */
#define VT1211_GPIO1PS          0x24    /* GPIO Port 1 Pin Select */
#define VT1211_GPIO2PS          0x25    /* GPIO Port 2 Pin Select */
#define VT1211_GPIO7PS          0x26    /* GPIO Port 7 Pin Select */
#define VT1211_UART2PS          0x27    /* UART2 Multi Function Pin Select */
#define VT1211_MIDIPS           0x28    /* MIDI Multi Function Pin Select */
#define VT1211_HWMPS            0x29    /* HWM Multi Function Pin Select */
#define VT1211_TMA              0x2e    /* Test Mode A */
#define VT1211_TMB              0x2f    /* Test Mode B */

#define VT1211_ID_VT1211        0x3c    /* VT1211 Device ID */

/* Logical Device Number (LDN) Assignments */
#define VT1211_LDN_FDC          0x00    /* Floppy Disk Controller */
#define VT1211_LDN_PP           0x01    /* Parallel Port */
#define VT1211_LDN_UART1        0x02    /* Serial Port 1 */
#define VT1211_LDN_UART2        0x03    /* Serial Port 2 */
#define VT1211_LDN_MIDI         0x06    /* MIDI */
#define VT1211_LDN_GMP          0x07    /* Game Port */
#define VT1211_LDN_GPIO         0x08    /* GPIO */
#define VT1211_LDN_WDG          0x09    /* Watch Dog */
#define VT1211_LDN_WUC          0x0a    /* Wake-up Control */
#define VT1211_LDN_HM           0x0b    /* Hardware Monitor */
#define VT1211_LDN_VFIR         0x0c    /* Very Fast IR */
#define VT1211_LDN_ROM          0x0d    /* Flash ROM */

/* Watchdog Timer Control Registers (LDN 9) */
#define VT1211_WDG_ACT          0x30    /* Activate */
#define VT1211_WDG_ACT_EN               (1 << 0)        /* enabled */
#define VT1211_WDG_ADDR_MSB     0x60    /* Address [15:8] */
#define VT1211_WDG_ADDR_LSB     0x61    /* Address [7:0] */
#define VT1211_WDG_IRQSEL       0x70    /* IRQ Select */
#define VT1211_WDG_CONF         0xf0    /* Configuration */

/* Hardware Monitor Control Registers (LDN B) */
#define VT1211_HM_ACT           0x30    /* Activate */
#define VT1211_HM_ACT_EN                (1 << 0)        /* enabled */
#define VT1211_HM_ADDR_MSB      0x60    /* Address [15:8] */
#define VT1211_HM_ADDR_LSB      0x61    /* Address [7:0] */
#define VT1211_HM_IRQSEL        0x70    /* IRQ Select */

/* Watchdog Timer I/O Space Registers */
#define VT1211_WDG_STAT         0x00    /* Status */
#define VT1211_WDG_STAT_ACT             (1 << 0)        /* timer is active */
#define VT1211_WDG_MASK         0x01    /* Mask */
#define VT1211_WDG_MASK_COM1            (1 << 1)        /* COM1 trigger */
#define VT1211_WDG_MASK_COM2            (1 << 2)        /* COM2 trigger */
#define VT1211_WDG_TIMEOUT      0x02    /* Timeout */

#define VT1211_WDG_IOSIZE       0x04    /* Watchdog timer I/O space size */

/* Hardware Monitor I/O Space Registers */
#define VT1211_HM_SELD0         0x10    /* SELD[7:0] */
#define VT1211_HM_SELD1         0x11    /* SELD[15:8] */
#define VT1211_HM_SELD2         0x12    /* SELD[19:16] */
#define VT1211_HM_ADATA_MSB     0x13    /* Analog Data D[15:8] */
#define VT1211_HM_ADATA_LSB     0x14    /* Analog Data D[7:0] */
#define VT1211_HM_DDATA         0x15    /* Digital Data D[7:0] */
#define VT1211_HM_CHCNT         0x16    /* Channel Counter */
#define VT1211_HM_DVCI          0x17    /* Data Valid & Channel Indications */
#define VT1211_HM_SMBUSCTL      0x18    /* SMBus Control */
#define VT1211_HM_AFECTL        0x19    /* AFE Control */
#define VT1211_HM_AFETCTL       0x1a    /* AFE Test Control */
#define VT1211_HM_CHSET         0x1b    /* Channel Setting */
#define VT1211_HM_HTL3          0x1d    /* Hot Temp Limit 3 */
#define VT1211_HM_HTHL3         0x1e    /* Hot Temp Hysteresis Limit 3 */
#define VT1211_HM_TEMP1         0x1f    /* Temperature Reading 1 */
#define VT1211_HM_TEMP3         0x20    /* Temperature Reading 3 */
#define VT1211_HM_UCH1          0x21    /* UCH1 */
#define VT1211_HM_UCH2          0x22    /* UCH2 */
#define VT1211_HM_UCH3          0x23    /* UCH3 */
#define VT1211_HM_UCH4          0x24    /* UCH4 */
#define VT1211_HM_UCH5          0x25    /* UCH5 */
#define VT1211_HM_33V           0x26    /* +3.3V (Internal Vcc ) */
#define VT1211_HM_FAN1          0x29    /* FAN1 Reading */
#define VT1211_HM_FAN2          0x2a    /* FAN2 Reading */
#define VT1211_HM_UCH2HL        0x2b    /* UCH2 High Limit */
#define VT1211_HM_UCH2LL        0x2c    /* UCH2 Low Limit */
#define VT1211_HM_UCH3HL        0x2d    /* UCH3 High Limit */
#define VT1211_HM_UCH3LL        0x2e    /* UCH3 Low Limit */
#define VT1211_HM_UCH4HL        0x2f    /* UCH4 High Limit */
#define VT1211_HM_UCH4LL        0x30    /* UCH4 Low Limit */
#define VT1211_HM_UCH5HL        0x31    /* UCH5 High Limit */
#define VT1211_HM_UCH5LL        0x32    /* UCH5 Low Limit */
#define VT1211_HM_33VHL         0x33    /* Internal +3.3V High Limit */
#define VT1211_HM_33VLL         0x34    /* Internal +3.3V Low Limit */
#define VT1211_HM_HTL1          0x39    /* Hot Temp Limit 1 */
#define VT1211_HM_HTHL1         0x3a    /* Hot Temp Hysteresis Limit 1 */
#define VT1211_HM_FAN1CL        0x3b    /* FAN1 Fan Count Limit */
#define VT1211_HM_FAN2CL        0x3c    /* FAN2 Fan Count Limit */
#define VT1211_HM_UCH1HL        0x3d    /* UCH1 High Limit */
#define VT1211_HM_UCH1LL        0x3e    /* UCH1 Low Limit */
#define VT1211_HM_STEPID        0x3f    /* Stepping ID Number */
#define VT1211_HM_CONF          0x40    /* Configuration */
#define VT1211_HM_CONF_START            (1 << 0)
#define VT1211_HM_INTST1        0x41    /* Interrupt INT Status 1 */
#define VT1211_HM_INTST2        0x42    /* Interrupt INT Status 2 */
#define VT1211_HM_INTMASK1      0x43    /* INT Mask 1 */
#define VT1211_HM_INTMASK2      0x44    /* INT Mask 2 */
#define VT1211_HM_VID           0x45    /* VID */
#define VT1211_HM_OVOFCTL       0x46    /* Over Voltage & Over Fan Control */
#define VT1211_HM_FSCTL         0x47    /* Fan Speed Control */
#define VT1211_HM_FSCTL_DIV1(v)         (((v) >> 4) & 0x03)
#define VT1211_HM_FSCTL_DIV2(v)         (((v) >> 6) & 0x03)
#define VT1211_HM_SBA           0x48    /* Serial Bus Address */
#define VT1211_HM_VID4          0x49    /* VID 4 */
#define VT1211_HM_VID4_UCH1(v)          (((v) >> 4) & 0x03)
#define VT1211_HM_UCHCONF       0x4a    /* Universal Channel Configuration */
#define VT1211_HM_UCHCONF_ISTEMP(v, n)  (((v) & (1 << ((n) + 1))) != 0)
#define VT1211_HM_TCONF1        0x4b    /* Temperature Configuration 1 */
#define VT1211_HM_TCONF1_TEMP1(v)       (((v) >> 6) & 0x03)
#define VT1211_HM_TCONF2        0x4c    /* Temperature Configuration 2 */
#define VT1211_HM_ETR           0x4d    /* Extended Temperature Resolution */
#define VT1211_HM_ETR_UCH(v, n)         (((v) >> (((n) - 2) * 2)) & 0x03)
#define VT1211_HM_OTCTL         0x4e    /* Over Temperature Control */
#define VT1211_HM_PWMCS         0x50    /* PWM Clock Select */
#define VT1211_HM_PWMCTL        0x51    /* PWM Control */
#define VT1211_HM_PWMFST        0x52    /* PWM Full Speed Temperature Value */
#define VT1211_HM_PWMHST        0x53    /* PWM High Speed Temperature Value */
#define VT1211_HM_PWMLST        0x54    /* PWM Low Speed Temperature Value */
#define VT1211_HM_PWMFOT        0x55    /* PWM Fan Off Temperature Value */
#define VT1211_HM_PWMO1HSDC     0x56    /* PWM Output 1 Hi Speed Duty Cycle */
#define VT1211_HM_PWMO1LSDC     0x57    /* PWM Output 1 Lo Speed Duty Cycle */
#define VT1211_HM_PWMO2HSDC     0x58    /* PWM Output 2 Hi Speed Duty Cycle */
#define VT1211_HM_PWMO2LSDC     0x59    /* PWM Output 2 Lo Speed Duty Cycle */
#define VT1211_HM_PWMO3HSDC     0x5a    /* PWM Output 3 Hi Speed Duty Cycle */
#define VT1211_HM_PWMO3LSDC     0x5b    /* PWM Output 3 Lo Speed Duty Cycle */
#define VT1211_HM_BEEPEN        0x5c    /* BEEP Event Enable */
#define VT1211_HM_FEBFD         0x5d    /* Fan Event BEEP Frequency Divisor */
#define VT1211_HM_VEBFD         0x5e    /* Volt Event BEEP Frequency Divisor */
#define VT1211_HM_TEBFD         0x5f    /* Temp Event BEEP Frequency Divisor */
#define VT1211_HM_PWM1CDC       0x60    /* PWM1 Current Duty Cycle */
#define VT1211_HM_PWM2CDC       0x61    /* PWM2 Current Duty Cycle */

#define VT1211_HM_IOSIZE        0x80    /* Hardware monitor I/O space size */

/* PWM clock frequencies */
static const int vt1211_hm_clock[] = {
        90000, 45000, 22500, 11250, 5630, 2800, 1400, 700
};

/* Voltage inputs resistor factors */
static const int vt1211_hm_vrfact[] = {
        5952, 8333, 5952, 4167, 1754, 6296
};

/*
 * Temperature lookup table for the following conversion formula:
 *
 * temp (degC) = (1.0 / (((1.0 / 3435.0) * (log((253.0 - raw / 4.0) /
 *               (raw / 4.0 - 43.0)))) + (1.0 / 298.15))) - 273.15;
 *
 */
static const struct {
        int raw;                /* raw value */
        int64_t temp;           /* temperature in uK */
} vt1211_hm_temptbl[] = {
        { 176, 203690000LL },
        { 184, 218020000LL },
        { 192, 225470000LL },
        { 200, 230710000LL },
        { 208, 234830000LL },
        { 216, 238260000LL },
        { 224, 241230000LL },
        { 232, 243850000LL },
        { 240, 246220000LL },
        { 248, 248390000LL },
        { 256, 250390000LL },
        { 264, 252260000LL },
        { 272, 254020000LL },
        { 280, 255680000LL },
        { 288, 257260000LL },
        { 296, 258760000LL },
        { 304, 260210000LL },
        { 312, 261600000LL },
        { 320, 262940000LL },
        { 328, 264240000LL },
        { 336, 265500000LL },
        { 344, 266730000LL },
        { 352, 267930000LL },
        { 360, 269100000LL },
        { 368, 270240000LL },
        { 376, 271360000LL },
        { 384, 272460000LL },
        { 392, 273540000LL },
        { 400, 274610000LL },
        { 408, 275660000LL },
        { 416, 276700000LL },
        { 424, 277720000LL },
        { 432, 278730000LL },
        { 440, 279740000LL },
        { 448, 280730000LL },
        { 456, 281720000LL },
        { 464, 282700000LL },
        { 472, 283670000LL },
        { 480, 284640000LL },
        { 488, 285610000LL },
        { 496, 286570000LL },
        { 504, 287530000LL },
        { 512, 288490000LL },
        { 520, 289450000LL },
        { 528, 290400000LL },
        { 536, 291360000LL },
        { 544, 292320000LL },
        { 552, 293280000LL },
        { 560, 294250000LL },
        { 568, 295210000LL },
        { 576, 296190000LL },
        { 584, 297160000LL },
        { 592, 298150000LL },
        { 600, 299130000LL },
        { 608, 300130000LL },
        { 616, 301140000LL },
        { 624, 302150000LL },
        { 632, 303170000LL },
        { 640, 304210000LL },
        { 648, 305250000LL },
        { 656, 306310000LL },
        { 664, 307380000LL },
        { 672, 308470000LL },
        { 680, 309570000LL },
        { 688, 310690000LL },
        { 696, 311830000LL },
        { 704, 312990000LL },
        { 712, 314170000LL },
        { 720, 315380000LL },
        { 728, 316610000LL },
        { 736, 317860000LL },
        { 744, 319150000LL },
        { 752, 320460000LL },
        { 760, 321810000LL },
        { 768, 323200000LL },
        { 776, 324620000LL },
        { 784, 326090000LL },
        { 792, 327610000LL },
        { 800, 329170000LL },
        { 808, 330790000LL },
        { 816, 332470000LL },
        { 824, 334220000LL },
        { 832, 336040000LL },
        { 840, 337940000LL },
        { 848, 339940000LL },
        { 856, 342030000LL },
        { 864, 344230000LL },
        { 872, 346560000LL },
        { 880, 349030000LL },
        { 888, 351670000LL },
        { 896, 354490000LL },
        { 904, 357530000LL },
        { 912, 360830000LL },
        { 920, 364430000LL },
        { 928, 368410000LL },
        { 936, 372830000LL },
        { 944, 377820000LL },
        { 952, 383530000LL },
        { 960, 390210000LL },
        { 968, 398230000LL },
        { 976, 408200000LL },
        { 984, 421270000LL },
        { 992, 439960000LL }
};

/* Hardware monitor sensors */
enum {
        VT1211_HMS_TEMP1 = 0,
        VT1211_HMS_UCH1,
        VT1211_HMS_UCH2,
        VT1211_HMS_UCH3,
        VT1211_HMS_UCH4,
        VT1211_HMS_UCH5,
        VT1211_HMS_33V,
        VT1211_HMS_FAN1,
        VT1211_HMS_FAN2,
        VT1211_HM_NSENSORS              /* must be the last */
};

#endif  /* !_DEV_ISA_VIASIOREG_H_ */