44f30b0f59
The upper layer doesn't send these down since 2.4.x (or 2.6 in practice), so no need to handle it. Inline sym_setup_data_pointers into its only caller so we can fail gracefully in the case we'd get one neverless. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
206 lines
6.5 KiB
C
206 lines
6.5 KiB
C
/*
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* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
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* of PCI-SCSI IO processors.
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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 is derived from the Linux sym53c8xx driver.
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* Copyright (C) 1998-2000 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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* 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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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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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/*
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* Macro used to generate interfaces for script Z.
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*/
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#define SYM_GEN_FW_Z(s) \
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SYM_GEN_Z(s, snooptest) SYM_GEN_Z(s, snoopend)
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/*
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* Generates structure interface that contains
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* offsets within script A, B and Z.
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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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#define SYM_GEN_Z(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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struct sym_fwz_ofs {
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SYM_GEN_FW_Z(u_short)
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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, B and Z.
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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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struct sym_fwz_ba {
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SYM_GEN_FW_Z(u32)
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};
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#undef SYM_GEN_A
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#undef SYM_GEN_B
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#undef SYM_GEN_Z
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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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char *name; /* Name we want to print out */
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u32 *a_base; /* Pointer to script A template */
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int a_size; /* Size of script A */
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struct sym_fwa_ofs
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*a_ofs; /* Useful offsets in script A */
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u32 *b_base; /* Pointer to script B template */
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int b_size; /* Size of script B */
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struct sym_fwb_ofs
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*b_ofs; /* Useful offsets in script B */
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u32 *z_base; /* Pointer to script Z template */
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int z_size; /* Size of script Z */
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struct sym_fwz_ofs
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*z_ofs; /* Useful offsets in script Z */
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/* Setup and patch methods for this firmware */
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void (*setup)(struct sym_hcb *, 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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(u32 *) &fw##a_scr, sizeof(fw##a_scr), &fw##a_ofs, \
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(u32 *) &fw##b_scr, sizeof(fw##b_scr), &fw##b_ofs, \
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(u32 *) &fw##z_scr, sizeof(fw##z_scr), &fw##z_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 SCRIPTZ_BA(np, label) (np->fwz_bas.label)
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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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