| /* sigma_io_defs.h: XDS Sigma I/O device simulator definitions | |
| Copyright (c) 2007-2008, Robert M Supnik | |
| Permission is hereby granted, free of charge, to any person obtaining a | |
| copy of this software and associated documentation files (the "Software"), | |
| to deal in the Software without restriction, including without limitation | |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| and/or sell copies of the Software, and to permit persons to whom the | |
| Software is furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in | |
| all copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| Except as contained in this notice, the name of Robert M Supnik shall not be | |
| used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| */ | |
| #ifndef SIGMA_IO_DEFS_H_ | |
| #define SIGMA_IO_DEFS_H_ 0 | |
| #include "sim_defs.h" /* simulator defns */ | |
| #include "sigma_defs.h" | |
| /* Channel constants */ | |
| #define CHAN_N_CHAN 8 /* max # channels */ | |
| #define CHAN_DFLT 4 /* default # chan */ | |
| #define CHAN_N_DEV 32 /* max dev per chan */ | |
| #define CHAN_V_IOPT (DEV_V_UF + 0) /* channel type */ | |
| #define CHAN_MIOP (0 << CHAN_V_IOPT) | |
| #define CHAN_SIOP (1 << CHAN_V_IOPT) | |
| /* I/O device definition block */ | |
| typedef struct { | |
| uint32 dva; /* dev addr (chan+dev) */ | |
| uint32 (*disp)(uint32 op, uint32 dva, uint32 *dvst); | |
| uint32 dio; /* dev addr (direct IO) */ | |
| uint32 (*dio_disp)(uint32 op, uint32 rn, uint32 dva); | |
| } dib_t; | |
| /* Channel data structure */ | |
| typedef struct { | |
| uint32 clc[CHAN_N_DEV]; /* location counter */ | |
| uint32 ba[CHAN_N_DEV]; /* mem addr */ | |
| uint16 bc[CHAN_N_DEV]; /* byte count */ | |
| uint8 cmd[CHAN_N_DEV]; /* command */ | |
| uint8 cmf[CHAN_N_DEV]; /* command flags */ | |
| uint16 chf[CHAN_N_DEV]; /* channel flags */ | |
| uint8 chi[CHAN_N_DEV]; /* interrupts */ | |
| uint8 chsf[CHAN_N_DEV]; /* simulator flags */ | |
| uint32 (*disp[CHAN_N_DEV])(uint32 op, uint32 dva, uint32 *dvst); | |
| } chan_t; | |
| /* Channel command words */ | |
| #define CCW1_V_CMD 24 /* command */ | |
| #define CCW1_M_CMD 0xFF | |
| #define CCW1_V_BA 0 | |
| #define CCW1_M_BA ((cpu_tab[cpu_model].pamask << 2) | 0x3) | |
| #define CHBA_MASK (CCW1_M_BA << CCW1_V_BA) | |
| #define CCW2_V_CMF 24 /* cmd flags */ | |
| #define CCW2_M_CMF 0xFF | |
| #define CCW2_V_BC 0 | |
| #define CCW2_M_BC 0xFFFF | |
| #define CHBC_MASK (CCW2_M_BC << CCW2_V_BC) | |
| #define CCW1_GETCMD(x) (((x) >> CCW1_V_CMD) & CCW1_M_CMD) | |
| #define CCW1_GETBA(x) (((x) >> CCW1_V_BA) & CCW1_M_BA) | |
| #define CCW2_GETCMF(x) (((x) >> CCW2_V_CMF) & CCW2_M_CMF) | |
| #define CCW2_GETBC(x) (((x) >> CCW2_V_BC) & CCW2_M_BC) | |
| /* Channel commands */ | |
| #define CMD_TIC 0x8 /* transfer */ | |
| /* Channel command flags */ | |
| #define CMF_DCH 0x80 /* data chain */ | |
| #define CMF_IZC 0x40 /* int on zero cnt */ | |
| #define CMF_CCH 0x20 /* command chain */ | |
| #define CMF_ICE 0x10 /* int on chan end */ | |
| #define CMF_HTE 0x08 /* hlt on xmit err */ | |
| #define CMF_IUE 0x04 /* int on uend */ | |
| #define CMF_SIL 0x02 /* suppress lnt err */ | |
| #define CMF_SKP 0x01 /* skip */ | |
| /* Channel flags */ | |
| #define CHF_INP 0x8000 /* int pending */ | |
| #define CHF_UEN 0x0400 /* unusual end */ | |
| #define CHF_LNTE 0x0080 /* length error */ | |
| #define CHF_XMDE 0x0040 /* xmit data error */ | |
| #define CHF_XMME 0x0020 /* xmit mem error */ | |
| #define CHF_XMAE 0x0010 /* xmit addr error */ | |
| #define CHF_IOME 0x0008 /* IOP mem error */ | |
| #define CHF_IOCE 0x0004 /* IOP ctrl error */ | |
| #define CHF_IOHE 0x0002 /* IOP halted */ | |
| #define CHF_ALL (CHF_INP|CHF_UEN|0xFF) | |
| /* Channel interrupts */ | |
| #define CHI_F_SHF 1 /* flag shift */ | |
| #define CHI_CTL (0x40 << CHI_F_SHF) /* ctl int (fake) */ | |
| #define CHI_ZBC (0x20 << CHI_F_SHF) /* zero by cnt int */ | |
| #define CHI_END (0x10 << CHI_F_SHF) /* channel end int */ | |
| #define CHI_UEN (0x08 << CHI_F_SHF) /* unusual end int */ | |
| #define CHI_FLAGS (CHI_ZBC|CHI_END|CHI_UEN) | |
| #define CHI_V_UN 0 | |
| #define CHI_M_UN 0xF | |
| #define CHI_GETUN(x) (((x) >> CHI_V_UN) & CHI_M_UN) | |
| #define CHI_GETINT(x) (((x) & CHI_FLAGS) >> CHI_F_SHF) | |
| /* Internal simulator flags */ | |
| #define CHSF_ACT 0x0001 /* channel active */ | |
| #define CHSF_MU 0x0002 /* multi-unit dev */ | |
| /* Dispatch routine status return value */ | |
| #define DVT_V_UN 24 /* unit addr (AIO only) */ | |
| #define DVT_M_UN 0xF | |
| #define DVT_V_CC 16 /* cond codes */ | |
| #define DVT_M_CC 0xF | |
| #define DVT_V_DVS 0 /* device status */ | |
| #define DVT_M_DVS 0xFF | |
| #define DVS_V_DST 5 /* device status */ | |
| #define DVS_M_DST 0x3 | |
| #define DVS_DST (DVS_M_DST << DVS_V_DST) | |
| #define DVS_DOFFL (0x1 << DVS_V_DST) | |
| #define DVS_DBUSY (0x3 << DVS_V_DST) | |
| #define DVS_AUTO 0x10 /* manual/automatic */ | |
| #define DVS_V_CST 1 /* ctrl status */ | |
| #define DVS_M_CST 0x3 | |
| #define DVS_CBUSY (0x3 << DVS_V_CST) | |
| #define DVS_CST (DVS_M_CST << DVS_V_CST) | |
| #define DVT_GETUN(x) (((x) >> DVT_V_UN) & DVT_M_UN) | |
| #define DVT_GETCC(x) (((x) >> DVT_V_CC) & DVT_M_CC) | |
| #define DVT_GETDVS(x) (((x) >> DVT_V_DVS) & DVT_M_DVS) | |
| #define DVT_NOST (CC1 << DVT_V_CC) /* no status */ | |
| #define DVT_NODEV ((CC1|CC2) < DVT_V_CC) /* no device */ | |
| /* Read and write direct address format */ | |
| #define DIO_V_MOD 12 /* mode */ | |
| #define DIO_M_MOD 0xF | |
| #define DIO_V_0FNC 0 /* mode 0 func */ | |
| #define DIO_M_0FNC 0xFFF | |
| #define DIO_V_1FNC 8 /* mode 1 int func */ | |
| #define DIO_M_1FNC 0x7 | |
| #define DIO_V_1GRP 0 /* int group */ | |
| #define DIO_M_1GRP 0xF | |
| #define DIO_GETMOD(x) (((x) >> DIO_V_MOD) & DIO_M_MOD) | |
| #define DIO_GET0FNC(x) (((x) >> DIO_V_0FNC) & DIO_M_0FNC) | |
| #define DIO_GET1FNC(x) (((x) >> DIO_V_1FNC) & DIO_M_1FNC) | |
| #define DIO_GET1GRP(x) (((x) >> DIO_V_1GRP) & DIO_M_1GRP) | |
| #define DIO_N_MOD (DIO_M_MOD + 1) /* # DIO "modes" */ | |
| /* I/O instruction address format */ | |
| #define DVA_V_CHAN 8 /* channel */ | |
| #define DVA_M_CHAN (CHAN_N_CHAN - 1) | |
| #define DVA_CHAN (DVA_M_CHAN << DVA_V_CHAN) | |
| #define DVA_V_DEVSU 0 /* dev, 1 unit */ | |
| #define DVA_M_DEVSU 0x7F | |
| #define DVA_DEVSU (DVA_M_DEVSU << DVA_V_DEVSU) | |
| #define DVA_MU 0x80 /* multi-unit flg */ | |
| #define DVA_V_DEVMU 4 /* dev, multi */ | |
| #define DVA_M_DEVMU 0x7 | |
| #define DVA_DEVMU (DVA_M_DEVMU << DVA_V_DEVMU) | |
| #define DVA_V_UNIT 0 /* unit number */ | |
| #define DVA_M_UNIT 0xF | |
| #define DVA_GETCHAN(x) (((x) >> DVA_V_CHAN) & DVA_M_CHAN) | |
| #define DVA_GETDEV(x) (((x) & DVA_MU)? \ | |
| (((x) >> DVA_V_DEVMU) & DVA_M_DEVMU): \ | |
| (((x) >> DVA_V_DEVSU) & DVA_M_DEVSU)) | |
| #define DVA_GETUNIT(x) (((x) & DVA_MU)? \ | |
| (((x) >> DVA_V_UNIT) & DVA_M_UNIT): 0) | |
| /* Default I/O device addresses */ | |
| #define DVA_TT 0x001 | |
| #define DVA_LP 0x002 | |
| #define DVA_CR 0x003 | |
| #define DVA_CP 0x004 | |
| #define DVA_PT 0x005 | |
| #define DVA_MUX 0x006 | |
| #define DIO_MUX 0x3 | |
| #define DVA_MT 0x080 | |
| #define DVA_RAD 0x180 | |
| #define DVA_DK 0x190 | |
| #define DVA_DPA 0x280 | |
| #define DVA_DPB 0x380 | |
| /* Channel routine status codes */ | |
| #define CHS_ERR 0x4000 /* any error */ | |
| #define CHS_INF 0x8000 /* information */ | |
| #define CHS_IFERR(x) (((x) != 0) && ((x) < CHS_INF)) | |
| #define CHS_INACTV (CHS_ERR + 0) | |
| #define CHS_NXM (CHS_ERR + 1) | |
| #define CHS_SEQ (CHS_ERR + 2) | |
| #define CHS_ZBC (CHS_INF + 1) /* zero byte count */ | |
| #define CHS_CCH (CHS_INF + 2) /* command chain */ | |
| /* Boot ROM */ | |
| #define BOOT_SA 0x20 | |
| #define BOOT_LNT 12 | |
| #define BOOT_DEV 0x25 | |
| #define BOOT_PC 0x26 | |
| /* Internal real-time scheduler */ | |
| #define RTC_C1 0 | |
| #define RTC_C2 1 | |
| #define RTC_C3 2 | |
| #define RTC_C4 3 | |
| #define RTC_NUM_CNTRS 4 | |
| #define RTC_TTI (RTC_NUM_CNTRS + 0) | |
| #define RTC_COC (RTC_NUM_CNTRS + 1) | |
| #define RTC_ALARM (RTC_NUM_CNTRS + 2) | |
| #define RTC_NUM_EVNTS (RTC_NUM_CNTRS + 3) | |
| #define RTC_HZ_OFF 0 | |
| #define RTC_HZ_500 1 | |
| #define RTC_HZ_50 2 | |
| #define RTC_HZ_60 3 | |
| #define RTC_HZ_100 4 | |
| #define RTC_HZ_2 5 | |
| #define RTC_NUM_HZ 6 | |
| /* Function prototypes */ | |
| uint32 chan_get_cmd (uint32 dva, uint32 *cmd); | |
| uint32 chan_set_chf (uint32 dva, uint32 fl); | |
| t_bool chan_tst_cmf (uint32 dva, uint32 fl); | |
| void chan_set_chi (uint32 dva, uint32 fl); | |
| void chan_set_dvi (uint32 dva); | |
| int32 chan_clr_chi (uint32 dva); | |
| int32 chan_chk_chi (uint32 dva); | |
| uint32 chan_end (uint32 dva); | |
| uint32 chan_uen (uint32 dva); | |
| uint32 chan_RdMemB (uint32 dva, uint32 *dat); | |
| uint32 chan_WrMemB (uint32 dva, uint32 dat); | |
| uint32 chan_WrMemBR (uint32 dva, uint32 dat); | |
| uint32 chan_RdMemW (uint32 dva, uint32 *dat); | |
| uint32 chan_WrMemW (uint32 dva, uint32 dat); | |
| t_stat chan_reset_dev (uint32 dva); | |
| void io_sclr_req (uint32 inum, uint32 val); | |
| void io_sclr_arm (uint32 inum, uint32 val); | |
| t_stat io_set_dvc (UNIT* uptr, int32 val, char *cptr, void *desc); | |
| t_stat io_show_dvc (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| t_stat io_set_dva (UNIT* uptr, int32 val, char *cptr, void *desc); | |
| t_stat io_show_dva (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| t_stat io_show_cst (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| t_stat io_boot (int32 u, DEVICE *dptr); | |
| /* Internal real-time event scheduler */ | |
| t_stat rtc_set_tps (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat rtc_show_tps (FILE *of, UNIT *uptr, int32 val, void *desc); | |
| t_stat rtc_register (uint32 tm, uint32 idx, UNIT *uptr); | |
| #endif |