/* $NetBSD: adwmcode.h,v 1.12 2019/12/15 16:48:27 tsutsui Exp $ */

/* $NetBSD: adwmcode.h,v 1.12 2019/12/15 16:48:27 tsutsui Exp $ */

/*
* Generic driver definitions and exported functions for the Advanced
* Systems Inc. SCSI controllers
*
* Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Author: Baldassare Dante Profeta <[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef ADW_MCODE_H
#define ADW_MCODE_H

/******************************************************************************/

#define ADW_MAX_CARRIER 253 /* Max. number of host commands (253) */

/*
* ADW_CARRIER must be exactly 16 BYTES
* Every adw_carrier structure _MUST_ always be aligned on a 16 bytes boundary
*/
struct adw_carrier {
/* ---------- the microcode wants the field below ---------- */
u_int32_t carr_id; /* Carrier ID */
u_int32_t carr_ba; /* Carrier Bus Address */
u_int32_t areq_ba; /* ADW_SCSI_REQ_Q Bus Address */
/*
* next_ba [31:4] Carrier Physical Next Pointer
*
* next_ba [3:1] Reserved Bits
* next_ba [0] Done Flag set in Response Queue.
*/
u_int32_t next_ba; /* see next_ba flags below */
/* ---------- ---------- */
};

typedef struct adw_carrier ADW_CARRIER;

/*
* next_ba flags
*/
#define ASC_RQ_DONE 0x00000001
#define ASC_RQ_GOOD 0x00000002
#define ASC_CQ_STOPPER 0x00000000

/*
* Mask used to eliminate low 4 bits of carrier 'next_ba' field.
*/
#define ASC_NEXT_BA_MASK 0xFFFFFFF0
#define ASC_GET_CARRP(carrp) htole32((le32toh(carrp)) & ASC_NEXT_BA_MASK)

/*
* Bus Address of a Carrier.
* ba = base_ba + v_address - base_va
*/
#define ADW_CARRIER_BADDR(dmamap, carriers, x) \
htole32((dmamap)->dm_segs[0].ds_addr + ((u_long)x - (u_long)(carriers)))
/*
* Virtual Address of a Carrier.
* va = base_va + bus_address - base_ba
*/
#define ADW_CARRIER_VADDR(sc, x) ((ADW_CARRIER *) \
(((u_int8_t *)(sc)->sc_control->carriers) + \
le32toh((u_long)x) - \
(sc)->sc_dmamap_carrier->dm_segs[0].ds_addr))

/******************************************************************************/

struct adw_mcode {
const u_int8_t * const mcode_data;
const u_int32_t mcode_chksum;
const u_int16_t mcode_size;
};

/******************************************************************************/

/*
* Fixed locations of microcode operating variables.
*/
#define ADW_MC_CODE_BEGIN_ADDR 0x0028 /* microcode start address */
#define ADW_MC_CODE_END_ADDR 0x002A /* microcode end address */
#define ADW_MC_CODE_CHK_SUM 0x002C /* microcode code checksum */
#define ADW_MC_VERSION_DATE 0x0038 /* microcode version */
#define ADW_MC_VERSION_NUM 0x003A /* microcode number */
#define ADW_MC_BIOSMEM 0x0040 /* BIOS RISC Memory Start */
#define ADW_MC_BIOSLEN 0x0050 /* BIOS RISC Memory Length */
#define ADW_MC_BIOS_SIGNATURE 0x0058 /* BIOS Signature 0x55AA */
#define ADW_MC_BIOS_VERSION 0x005A /* BIOS Version (2 bytes) */

#define ADW_MC_SDTR_SPEED1 0x0090 /* SDTR Speed for TID 0-3 */
#define ADW_MC_SDTR_SPEED2 0x0092 /* SDTR Speed for TID 4-7 */
#define ADW_MC_SDTR_SPEED3 0x0094 /* SDTR Speed for TID 8-11 */
#define ADW_MC_SDTR_SPEED4 0x0096 /* SDTR Speed for TID 12-15 */
/*
* 4-bit speed SDTR speed name
* =========== ===============
* 0000b (0x0) SDTR disabled
* 0001b (0x1) 5 MHz
* 0010b (0x2) 10 MHz
* 0011b (0x3) 20 MHz (Ultra)
* 0100b (0x4) 40 MHz (LVD/Ultra2)
* 0101b (0x5) 80 MHz (LVD2/Ultra3)
* 0110b (0x6) Undefined
* ...
* 1111b (0xF) Undefined
*/
#define ADW_MC_CHIP_TYPE 0x009A
#define ADW_MC_INTRB_CODE 0x009B
#define ADW_MC_WDTR_ABLE 0x009C
#define ADW_MC_SDTR_ABLE 0x009E
#define ADW_MC_TAGQNG_ABLE 0x00A0
#define ADW_MC_DISC_ENABLE 0x00A2
#define ADW_MC_IDLE_CMD_STATUS 0x00A4
#define ADW_MC_IDLE_CMD 0x00A6
#define ADW_MC_IDLE_CMD_PARAMETER 0x00A8
#define ADW_MC_DEFAULT_SCSI_CFG0 0x00AC
#define ADW_MC_DEFAULT_SCSI_CFG1 0x00AE
#define ADW_MC_DEFAULT_MEM_CFG 0x00B0
#define ADW_MC_DEFAULT_SEL_MASK 0x00B2
#define ADW_MC_SDTR_DONE 0x00B6
#define ADW_MC_NUMBER_OF_QUEUED_CMD 0x00C0
#define ADW_MC_NUMBER_OF_MAX_CMD 0x00D0
#define ADW_MC_DEVICE_HSHK_CFG_TABLE 0x0100
#define ADW_MC_CONTROL_FLAG 0x0122 /* Microcode control flag. */
#define ADW_MC_WDTR_DONE 0x0124
#define ADW_MC_CAM_MODE_MASK 0x015E /* CAM mode TID bitmask. */
#define ADW_MC_ICQ 0x0160
#define ADW_MC_IRQ 0x0164
#define ADW_MC_PPR_ABLE 0x017A

/*
* Microcode Control Flags
*
* Flags set by the Adw Library in RISC variable 'control_flag' (0x122)
* and handled by the microcode.
*/
#define CONTROL_FLAG_IGNORE_PERR 0x0001 /* Ignore DMA Parity Errors */
#define CONTROL_FLAG_ENABLE_AIPP 0x0002 /* Enabled AIPP checking. */

/*
* ADW_MC_DEVICE_HSHK_CFG_TABLE microcode table or HSHK_CFG register format
*/
#define HSHK_CFG_WIDE_XFR 0x8000
#define HSHK_CFG_RATE 0x0F00
#define HSHK_CFG_OFFSET 0x001F

#define ADW_DEF_MAX_HOST_QNG 0xFD /* Max. number of host commands (253) */
#define ADW_DEF_MIN_HOST_QNG 0x10 /* Min. number of host commands (16) */
#define ADW_DEF_MAX_DVC_QNG 0x3F /* Max. number commands per device (63) */
#define ADW_DEF_MIN_DVC_QNG 0x04 /* Min. number commands per device (4) */

#define ADW_QC_DATA_CHECK 0x01 /* Require ADW_QC_DATA_OUT set or clear. */
#define ADW_QC_DATA_OUT 0x02 /* Data out DMA transfer. */
#define ADW_QC_START_MOTOR 0x04 /* Send auto-start motor before request. */
#define ADW_QC_NO_OVERRUN 0x08 /* Don't report overrun. */
#define ADW_QC_FREEZE_TIDQ 0x10 /* Freeze TID queue after request.XXX TBD*/

#define ADW_QSC_NO_DISC 0x01 /* Don't allow disconnect for request. */
#define ADW_QSC_NO_TAGMSG 0x02 /* Don't allow tag queuing for request. */
#define ADW_QSC_NO_SYNC 0x04 /* Don't use Synch. transfer on request. */
#define ADW_QSC_NO_WIDE 0x08 /* Don't use Wide transfer on request. */
#define ADW_QSC_REDO_DTR 0x10 /* Renegotiate WDTR/SDTR before request. */
/*
* Note: If a Tag Message is to be sent and neither ADW_QSC_HEAD_TAG or
* ADW_QSC_ORDERED_TAG is set, then a Simple Tag Message (0x20) is used.
*/
#define ADW_QSC_HEAD_TAG 0x40 /* Use Head Tag Message (0x21). */
#define ADW_QSC_ORDERED_TAG 0x80 /* Use Ordered Tag Message (0x22). */

/******************************************************************************/

ADW_CARRIER *AdwInitCarriers(bus_dmamap_t, ADW_CARRIER *);

extern const struct adw_mcode adw_asc3550_mcode_data;
extern const struct adw_mcode adw_asc38C0800_mcode_data;
extern const struct adw_mcode adw_asc38C1600_mcode_data;

/******************************************************************************/

#endif /* ADW_MCODE_H */