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210 lines
7.3 KiB
C
210 lines
7.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Device driver optimized for the Symbios/LSI 53C896/53C895A/53C1010
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* PCI-SCSI controllers.
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*
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* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
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*
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* This driver also supports the following Symbios/LSI PCI-SCSI chips:
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* 53C810A, 53C825A, 53C860, 53C875, 53C876, 53C885, 53C895,
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* 53C810, 53C815, 53C825 and the 53C1510D is 53C8XX mode.
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*
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*
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* This driver for FreeBSD-CAM is derived from the Linux sym53c8xx driver.
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* Copyright (C) 1998-1999 Gerard Roudier
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*
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* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
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* a port of the FreeBSD ncr driver to Linux-1.2.13.
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*
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* The original ncr driver has been written for 386bsd and FreeBSD by
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* Wolfgang Stanglmeier <wolf@cologne.de>
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* Stefan Esser <se@mi.Uni-Koeln.de>
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* Copyright (C) 1994 Wolfgang Stanglmeier
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*
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* The initialisation code, and part of the code that addresses
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* FreeBSD-CAM services is based on the aic7xxx driver for FreeBSD-CAM
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* written by Justin T. Gibbs.
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*
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* Other major contributions:
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*
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* NVRAM detection and reading.
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* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
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*
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*-----------------------------------------------------------------------------
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef SYM_FW_H
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#define SYM_FW_H
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/*
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* Macro used to generate interfaces for script A.
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*/
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#define SYM_GEN_FW_A(s) \
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SYM_GEN_A(s, start) SYM_GEN_A(s, getjob_begin) \
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SYM_GEN_A(s, getjob_end) \
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SYM_GEN_A(s, select) SYM_GEN_A(s, wf_sel_done) \
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SYM_GEN_A(s, send_ident) \
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SYM_GEN_A(s, dispatch) SYM_GEN_A(s, init) \
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SYM_GEN_A(s, clrack) SYM_GEN_A(s, complete_error) \
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SYM_GEN_A(s, done) SYM_GEN_A(s, done_end) \
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SYM_GEN_A(s, idle) SYM_GEN_A(s, ungetjob) \
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SYM_GEN_A(s, reselect) \
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SYM_GEN_A(s, resel_tag) SYM_GEN_A(s, resel_dsa) \
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SYM_GEN_A(s, resel_no_tag) \
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SYM_GEN_A(s, data_in) SYM_GEN_A(s, data_in2) \
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SYM_GEN_A(s, data_out) SYM_GEN_A(s, data_out2) \
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SYM_GEN_A(s, pm0_data) SYM_GEN_A(s, pm1_data)
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/*
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* Macro used to generate interfaces for script B.
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*/
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#define SYM_GEN_FW_B(s) \
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SYM_GEN_B(s, no_data) \
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SYM_GEN_B(s, sel_for_abort) SYM_GEN_B(s, sel_for_abort_1) \
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SYM_GEN_B(s, msg_bad) SYM_GEN_B(s, msg_weird) \
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SYM_GEN_B(s, wdtr_resp) SYM_GEN_B(s, send_wdtr) \
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SYM_GEN_B(s, sdtr_resp) SYM_GEN_B(s, send_sdtr) \
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SYM_GEN_B(s, ppr_resp) SYM_GEN_B(s, send_ppr) \
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SYM_GEN_B(s, nego_bad_phase) \
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SYM_GEN_B(s, ident_break) SYM_GEN_B(s, ident_break_atn) \
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SYM_GEN_B(s, sdata_in) SYM_GEN_B(s, resel_bad_lun) \
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SYM_GEN_B(s, bad_i_t_l) SYM_GEN_B(s, bad_i_t_l_q) \
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SYM_GEN_B(s, wsr_ma_helper) \
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SYM_GEN_B(s, snooptest) SYM_GEN_B(s, snoopend)
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/*
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* Generates structure interface that contains
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* offsets within script A and script B.
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*/
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#define SYM_GEN_A(s, label) s label;
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#define SYM_GEN_B(s, label) s label;
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struct sym_fwa_ofs {
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SYM_GEN_FW_A(u_short)
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};
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struct sym_fwb_ofs {
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SYM_GEN_FW_B(u_short)
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SYM_GEN_B(u_short, start64)
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SYM_GEN_B(u_short, pm_handle)
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};
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/*
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* Generates structure interface that contains
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* bus addresses within script A and script B.
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*/
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struct sym_fwa_ba {
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SYM_GEN_FW_A(u32)
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};
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struct sym_fwb_ba {
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SYM_GEN_FW_B(u32)
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SYM_GEN_B(u32, start64)
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SYM_GEN_B(u32, pm_handle)
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};
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#undef SYM_GEN_A
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#undef SYM_GEN_B
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/*
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* Let cc know about the name of the controller data structure.
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* We need this for function prototype declarations just below.
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*/
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struct sym_hcb;
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/*
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* Generic structure that defines a firmware.
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*/
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struct sym_fw {
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const char *name; /* Name we want to print out */
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const u32 *a_base;/* Pointer to script A template */
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int a_size; /* Size of script A */
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const struct sym_fwa_ofs
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*a_ofs; /* Useful offsets in script A */
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const u32 *b_base;/* Pointer to script B template */
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int b_size; /* Size of script B */
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const struct sym_fwb_ofs
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*b_ofs; /* Useful offsets in script B */
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/* Setup and patch methods for this firmware */
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void (*setup)(struct sym_hcb *, const struct sym_fw *);
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void (*patch)(struct sym_hcb *);
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};
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/*
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* Macro used to declare a firmware.
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*/
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#define SYM_FW_ENTRY(fw, name) \
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{ \
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name, \
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(const u32 *) &fw##a_scr, sizeof(fw##a_scr), &fw##a_ofs,\
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(const u32 *) &fw##b_scr, sizeof(fw##b_scr), &fw##b_ofs,\
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fw##_setup, fw##_patch \
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}
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/*
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* Macros used from the C code to get useful
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* SCRIPTS bus addresses.
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*/
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#define SCRIPTA_BA(np, label) (np->fwa_bas.label)
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#define SCRIPTB_BA(np, label) (np->fwb_bas.label)
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#define SCRIPTB0_BA(np,label) \
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(np->scriptb0_ba + (np->fwb_bas.label - np->scriptb_ba))
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/*
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* Macros used by scripts definitions.
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*
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* HADDR_1 generates a reference to a field of the controller data.
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* HADDR_2 generates a reference to a field of the controller data
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* with offset.
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* RADDR_1 generates a reference to a script processor register.
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* RADDR_2 generates a reference to a script processor register
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* with offset.
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* PADDR_A generates a reference to another part of script A.
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* PADDR_B generates a reference to another part of script B.
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*
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* SYM_GEN_PADDR_A and SYM_GEN_PADDR_B are used to define respectively
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* the PADDR_A and PADDR_B macros for each firmware by setting argument
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* `s' to the name of the corresponding structure.
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*
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* SCR_DATA_ZERO is used to allocate a DWORD of data in scripts areas.
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*/
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#define RELOC_SOFTC 0x40000000
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#define RELOC_LABEL_A 0x50000000
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#define RELOC_REGISTER 0x60000000
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#define RELOC_LABEL_B 0x80000000
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#define RELOC_MASK 0xf0000000
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#define HADDR_1(label) (RELOC_SOFTC | offsetof(struct sym_hcb, label))
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#define HADDR_2(label,ofs) (RELOC_SOFTC | \
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(offsetof(struct sym_hcb, label)+(ofs)))
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#define RADDR_1(label) (RELOC_REGISTER | REG(label))
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#define RADDR_2(label,ofs) (RELOC_REGISTER | ((REG(label))+(ofs)))
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#define SYM_GEN_PADDR_A(s, label) (RELOC_LABEL_A | offsetof(s, label))
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#define SYM_GEN_PADDR_B(s, label) (RELOC_LABEL_B | offsetof(s, label))
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#define SCR_DATA_ZERO 0xf00ff00f
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#endif /* SYM_FW_H */
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