diff options
Diffstat (limited to 'drivers/scsi/initio.c')
| -rw-r--r-- | drivers/scsi/initio.c | 3819 |
1 files changed, 1824 insertions, 1995 deletions
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c index 7e7635ca78f..d9dfb69ae03 100644 --- a/drivers/scsi/initio.c +++ b/drivers/scsi/initio.c @@ -3,7 +3,8 @@ * * Copyright (c) 1994-1998 Initio Corporation * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl> - * All rights reserved. + * Copyright (c) 2004 Christoph Hellwig <hch@lst.de> + * Copyright (c) 2007 Red Hat <alan@redhat.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,38 +20,6 @@ * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * - * -------------------------------------------------------------------------- - * - * 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, - * without modification, immediately at the beginning of the file. - * 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. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Where this Software is combined with software released under the terms of - * the GNU General Public License ("GPL") and the terms of the GPL would require the - * combined work to also be released under the terms of the GPL, the terms - * and conditions of this License will apply in addition to those of the - * GPL with the exception of any terms or conditions of this License that - * conflict with, or are expressly prohibited by, the GPL. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * ************************************************************************* * @@ -70,14 +39,14 @@ * - Fix memory allocation problem * 03/04/98 hc - v1.01l * - Fix tape rewind which will hang the system problem - * - Set can_queue to tul_num_scb + * - Set can_queue to initio_num_scb * 06/25/98 hc - v1.01m * - Get it work for kernel version >= 2.1.75 - * - Dynamic assign SCSI bus reset holding time in init_tulip() + * - Dynamic assign SCSI bus reset holding time in initio_init() * 07/02/98 hc - v1.01n * - Support 0002134A * 08/07/98 hc - v1.01o - * - Change the tul_abort_srb routine to use scsi_done. <01> + * - Change the initio_abort_srb routine to use scsi_done. <01> * 09/07/98 hl - v1.02 * - Change the INI9100U define and proc_dir_entry to * reflect the newer Kernel 2.1.118, but the v1.o1o @@ -150,23 +119,13 @@ static unsigned int i91u_debug = DEBUG_DEFAULT; #endif -#define TUL_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) )) - -typedef struct PCI_ID_Struc { - unsigned short vendor_id; - unsigned short device_id; -} PCI_ID; - -static int tul_num_ch = 4; /* Maximum 4 adapters */ -static int tul_num_scb; -static int tul_tag_enable = 1; -static SCB *tul_scb; +static int initio_tag_enable = 1; #ifdef DEBUG_i91u static int setup_debug = 0; #endif -static void i91uSCBPost(BYTE * pHcb, BYTE * pScb); +static void i91uSCBPost(u8 * pHcb, u8 * pScb); /* PCI Devices supported by this driver */ static struct pci_device_id i91u_pci_devices[] = { @@ -184,74 +143,66 @@ MODULE_DEVICE_TABLE(pci, i91u_pci_devices); #define DEBUG_STATE 0 #define INT_DISC 0 -/*--- external functions --*/ -static void tul_se2_wait(void); - -/*--- forward refrence ---*/ -static SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun); -static SCB *tul_find_done_scb(HCS * pCurHcb); - -static int tulip_main(HCS * pCurHcb); - -static int tul_next_state(HCS * pCurHcb); -static int tul_state_1(HCS * pCurHcb); -static int tul_state_2(HCS * pCurHcb); -static int tul_state_3(HCS * pCurHcb); -static int tul_state_4(HCS * pCurHcb); -static int tul_state_5(HCS * pCurHcb); -static int tul_state_6(HCS * pCurHcb); -static int tul_state_7(HCS * pCurHcb); -static int tul_xfer_data_in(HCS * pCurHcb); -static int tul_xfer_data_out(HCS * pCurHcb); -static int tul_xpad_in(HCS * pCurHcb); -static int tul_xpad_out(HCS * pCurHcb); -static int tul_status_msg(HCS * pCurHcb); - -static int tul_msgin(HCS * pCurHcb); -static int tul_msgin_sync(HCS * pCurHcb); -static int tul_msgin_accept(HCS * pCurHcb); -static int tul_msgout_reject(HCS * pCurHcb); -static int tul_msgin_extend(HCS * pCurHcb); - -static int tul_msgout_ide(HCS * pCurHcb); -static int tul_msgout_abort_targ(HCS * pCurHcb); -static int tul_msgout_abort_tag(HCS * pCurHcb); - -static int tul_bus_device_reset(HCS * pCurHcb); -static void tul_select_atn(HCS * pCurHcb, SCB * pCurScb); -static void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb); -static void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb); -static int int_tul_busfree(HCS * pCurHcb); -static int int_tul_scsi_rst(HCS * pCurHcb); -static int int_tul_bad_seq(HCS * pCurHcb); -static int int_tul_resel(HCS * pCurHcb); -static int tul_sync_done(HCS * pCurHcb); -static int wdtr_done(HCS * pCurHcb); -static int wait_tulip(HCS * pCurHcb); -static int tul_wait_done_disc(HCS * pCurHcb); -static int tul_wait_disc(HCS * pCurHcb); -static void tulip_scsi(HCS * pCurHcb); -static int tul_post_scsi_rst(HCS * pCurHcb); - -static void tul_se2_ew_en(WORD CurBase); -static void tul_se2_ew_ds(WORD CurBase); -static int tul_se2_rd_all(WORD CurBase); -static void tul_se2_update_all(WORD CurBase); /* setup default pattern */ -static void tul_read_eeprom(WORD CurBase); - - /* ---- INTERNAL VARIABLES ---- */ -static HCS tul_hcs[MAX_SUPPORTED_ADAPTERS]; -static INI_ADPT_STRUCT i91u_adpt[MAX_SUPPORTED_ADAPTERS]; - -/*NVRAM nvram, *nvramp = &nvram; */ +/*--- forward references ---*/ +static struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun); +static struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host); + +static int tulip_main(struct initio_host * host); + +static int initio_next_state(struct initio_host * host); +static int initio_state_1(struct initio_host * host); +static int initio_state_2(struct initio_host * host); +static int initio_state_3(struct initio_host * host); +static int initio_state_4(struct initio_host * host); +static int initio_state_5(struct initio_host * host); +static int initio_state_6(struct initio_host * host); +static int initio_state_7(struct initio_host * host); +static int initio_xfer_data_in(struct initio_host * host); +static int initio_xfer_data_out(struct initio_host * host); +static int initio_xpad_in(struct initio_host * host); +static int initio_xpad_out(struct initio_host * host); +static int initio_status_msg(struct initio_host * host); + +static int initio_msgin(struct initio_host * host); +static int initio_msgin_sync(struct initio_host * host); +static int initio_msgin_accept(struct initio_host * host); +static int initio_msgout_reject(struct initio_host * host); +static int initio_msgin_extend(struct initio_host * host); + +static int initio_msgout_ide(struct initio_host * host); +static int initio_msgout_abort_targ(struct initio_host * host); +static int initio_msgout_abort_tag(struct initio_host * host); + +static int initio_bus_device_reset(struct initio_host * host); +static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb); +static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb); +static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb); +static int int_initio_busfree(struct initio_host * host); +static int int_initio_scsi_rst(struct initio_host * host); +static int int_initio_bad_seq(struct initio_host * host); +static int int_initio_resel(struct initio_host * host); +static int initio_sync_done(struct initio_host * host); +static int wdtr_done(struct initio_host * host); +static int wait_tulip(struct initio_host * host); +static int initio_wait_done_disc(struct initio_host * host); +static int initio_wait_disc(struct initio_host * host); +static void tulip_scsi(struct initio_host * host); +static int initio_post_scsi_rst(struct initio_host * host); + +static void initio_se2_ew_en(unsigned long base); +static void initio_se2_ew_ds(unsigned long base); +static int initio_se2_rd_all(unsigned long base); +static void initio_se2_update_all(unsigned long base); /* setup default pattern */ +static void initio_read_eeprom(unsigned long base); + +/* ---- INTERNAL VARIABLES ---- */ + static NVRAM i91unvram; static NVRAM *i91unvramp; - - -static UCHAR i91udftNvRam[64] = +static u8 i91udftNvRam[64] = { -/*----------- header -----------*/ + /*----------- header -----------*/ 0x25, 0xc9, /* Signature */ 0x40, /* Size */ 0x01, /* Revision */ @@ -289,7 +240,7 @@ static UCHAR i91udftNvRam[64] = 0, 0}; /* - CheckSum - */ -static UCHAR tul_rate_tbl[8] = /* fast 20 */ +static u8 initio_rate_tbl[8] = /* fast 20 */ { /* nanosecond devide by 4 */ 12, /* 50ns, 20M */ @@ -302,53 +253,17 @@ static UCHAR tul_rate_tbl[8] = /* fast 20 */ 62 /* 250ns, 4M */ }; -static void tul_do_pause(unsigned amount) -{ /* Pause for amount jiffies */ +static void initio_do_pause(unsigned amount) +{ + /* Pause for amount jiffies */ unsigned long the_time = jiffies + amount; - while (time_before_eq(jiffies, the_time)); + while (time_before_eq(jiffies, the_time)) + cpu_relax(); } /*-- forward reference --*/ -/******************************************************************* - Use memeory refresh time ~ 15us * 2 -********************************************************************/ -void tul_se2_wait(void) -{ -#if 1 - udelay(30); -#else - UCHAR readByte; - - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) { - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) - break; - } - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) != 0x10) - break; - } - } else { - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) == 0x10) - break; - } - for (;;) { - readByte = TUL_RD(0, 0x61); - if ((readByte & 0x10) != 0x10) - break; - } - } -#endif -} - - /****************************************************************** Input: instruction for Serial E2PROM @@ -379,1174 +294,1019 @@ void tul_se2_wait(void) ******************************************************************/ -static void tul_se2_instr(WORD CurBase, UCHAR instr) + +/** + * initio_se2_instr - bitbang an instruction + * @base: Base of InitIO controller + * @instr: Instruction for serial E2PROM + * + * Bitbang an instruction out to the serial E2Prom + */ + +static void initio_se2_instr(unsigned long base, u8 instr) { int i; - UCHAR b; + u8 b; - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO); /* cs+start bit */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK | SE2DO); /* +CLK */ - tul_se2_wait(); + outb(SE2CS | SE2DO, base + TUL_NVRAM); /* cs+start bit */ + udelay(30); + outb(SE2CS | SE2CLK | SE2DO, base + TUL_NVRAM); /* +CLK */ + udelay(30); for (i = 0; i < 8; i++) { if (instr & 0x80) - b = SE2CS | SE2DO; /* -CLK+dataBit */ + b = SE2CS | SE2DO; /* -CLK+dataBit */ else - b = SE2CS; /* -CLK */ - TUL_WR(CurBase + TUL_NVRAM, b); - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, b | SE2CLK); /* +CLK */ - tul_se2_wait(); + b = SE2CS; /* -CLK */ + outb(b, base + TUL_NVRAM); + udelay(30); + outb(b | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); instr <<= 1; } - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - return; + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); } -/****************************************************************** - Function name : tul_se2_ew_en - Description : Enable erase/write state of serial EEPROM -******************************************************************/ -void tul_se2_ew_en(WORD CurBase) +/** + * initio_se2_ew_en - Enable erase/write + * @base: Base address of InitIO controller + * + * Enable erase/write state of serial EEPROM + */ +void initio_se2_ew_en(unsigned long base) { - tul_se2_instr(CurBase, 0x30); /* EWEN */ - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); - return; + initio_se2_instr(base, 0x30); /* EWEN */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); } -/************************************************************************ - Disable erase/write state of serial EEPROM -*************************************************************************/ -void tul_se2_ew_ds(WORD CurBase) +/** + * initio_se2_ew_ds - Disable erase/write + * @base: Base address of InitIO controller + * + * Disable erase/write state of serial EEPROM + */ +void initio_se2_ew_ds(unsigned long base) { - tul_se2_instr(CurBase, 0); /* EWDS */ - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); - return; + initio_se2_instr(base, 0); /* EWDS */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); } -/****************************************************************** - Input :address of Serial E2PROM - Output :value stored in Serial E2PROM -*******************************************************************/ -static USHORT tul_se2_rd(WORD CurBase, ULONG adr) +/** + * initio_se2_rd - read E2PROM word + * @base: Base of InitIO controller + * @addr: Address of word in E2PROM + * + * Read a word from the NV E2PROM device + */ +static u16 initio_se2_rd(unsigned long base, u8 addr) { - UCHAR instr, readByte; - USHORT readWord; + u8 instr, rb; + u16 val = 0; int i; - instr = (UCHAR) (adr | 0x80); - tul_se2_instr(CurBase, instr); /* READ INSTR */ - readWord = 0; + instr = (u8) (addr | 0x80); + initio_se2_instr(base, instr); /* READ INSTR */ for (i = 15; i >= 0; i--) { - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ /* sample data after the following edge of clock */ - readByte = TUL_RD(CurBase, TUL_NVRAM); - readByte &= SE2DI; - readWord += (readByte << i); - tul_se2_wait(); /* 6/20/95 */ + rb = inb(base + TUL_NVRAM); + rb &= SE2DI; + val += (rb << i); + udelay(30); /* 6/20/95 */ } - TUL_WR(CurBase + TUL_NVRAM, 0); /* no chip select */ - tul_se2_wait(); - return readWord; + outb(0, base + TUL_NVRAM); /* no chip select */ + udelay(30); + return val; } - -/****************************************************************** - Input: new value in Serial E2PROM, address of Serial E2PROM -*******************************************************************/ -static void tul_se2_wr(WORD CurBase, UCHAR adr, USHORT writeWord) +/** + * initio_se2_wr - read E2PROM word + * @base: Base of InitIO controller + * @addr: Address of word in E2PROM + * @val: Value to write + * + * Write a word to the NV E2PROM device. Used when recovering from + * a problem with the NV. + */ +static void initio_se2_wr(unsigned long base, u8 addr, u16 val) { - UCHAR readByte; - UCHAR instr; + u8 rb; + u8 instr; int i; - instr = (UCHAR) (adr | 0x40); - tul_se2_instr(CurBase, instr); /* WRITE INSTR */ + instr = (u8) (addr | 0x40); + initio_se2_instr(base, instr); /* WRITE INSTR */ for (i = 15; i >= 0; i--) { - if (writeWord & 0x8000) - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO); /* -CLK+dataBit 1 */ + if (val & 0x8000) + outb(SE2CS | SE2DO, base + TUL_NVRAM); /* -CLK+dataBit 1 */ else - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK+dataBit 0 */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - writeWord <<= 1; + outb(SE2CS, base + TUL_NVRAM); /* -CLK+dataBit 0 */ + udelay(30); + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + val <<= 1; } - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - tul_se2_wait(); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* +CS */ - tul_se2_wait(); + outb(SE2CS, base + TUL_NVRAM); /* +CS */ + udelay(30); for (;;) { - TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK); /* +CLK */ - tul_se2_wait(); - TUL_WR(CurBase + TUL_NVRAM, SE2CS); /* -CLK */ - tul_se2_wait(); - if ((readByte = TUL_RD(CurBase, TUL_NVRAM)) & SE2DI) + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); + if ((rb = inb(base + TUL_NVRAM)) & SE2DI) break; /* write complete */ } - TUL_WR(CurBase + TUL_NVRAM, 0); /* -CS */ - return; + outb(0, base + TUL_NVRAM); /* -CS */ } +/** + * initio_se2_rd_all - read hostadapter NV configuration + * @base: Base address of InitIO controller + * + * Reads the E2PROM data into main memory. Ensures that the checksum + * and header marker are valid. Returns 1 on success -1 on error. + */ -/*********************************************************************** - Read SCSI H/A configuration parameters from serial EEPROM -************************************************************************/ -int tul_se2_rd_all(WORD CurBase) +static int initio_se2_rd_all(unsigned long base) { int i; - ULONG chksum = 0; - USHORT *np; + u16 chksum = 0; + u16 *np; i91unvramp = &i91unvram; - np = (USHORT *) i91unvramp; - for (i = 0; i < 32; i++) { - *np++ = tul_se2_rd(CurBase, i); - } + np = (u16 *) i91unvramp; + for (i = 0; i < 32; i++) + *np++ = initio_se2_rd(base, i); -/*--------------------Is signature "ini" ok ? ----------------*/ + /* Is signature "ini" ok ? */ if (i91unvramp->NVM_Signature != INI_SIGNATURE) return -1; -/*---------------------- Is ckecksum ok ? ----------------------*/ - np = (USHORT *) i91unvramp; + /* Is ckecksum ok ? */ + np = (u16 *) i91unvramp; for (i = 0; i < 31; i++) chksum += *np++; - if (i91unvramp->NVM_CheckSum != (USHORT) chksum) + if (i91unvramp->NVM_CheckSum != chksum) return -1; return 1; } - -/*********************************************************************** - Update SCSI H/A configuration parameters from serial EEPROM -************************************************************************/ -void tul_se2_update_all(WORD CurBase) +/** + * initio_se2_update_all - Update E2PROM + * @base: Base of InitIO controller + * + * Update the E2PROM by wrting any changes into the E2PROM + * chip, rewriting the checksum. + */ +static void initio_se2_update_all(unsigned long base) { /* setup default pattern */ int i; - ULONG chksum = 0; - USHORT *np, *np1; + u16 chksum = 0; + u16 *np, *np1; i91unvramp = &i91unvram; /* Calculate checksum first */ - np = (USHORT *) i91udftNvRam; + np = (u16 *) i91udftNvRam; for (i = 0; i < 31; i++) chksum += *np++; - *np = (USHORT) chksum; - tul_se2_ew_en(CurBase); /* Enable write */ + *np = chksum; + initio_se2_ew_en(base); /* Enable write */ - np = (USHORT *) i91udftNvRam; - np1 = (USHORT *) i91unvramp; + np = (u16 *) i91udftNvRam; + np1 = (u16 *) i91unvramp; for (i = 0; i < 32; i++, np++, np1++) { - if (*np != *np1) { - tul_se2_wr(CurBase, i, *np); - } + if (*np != *np1) + initio_se2_wr(base, i, *np); } - - tul_se2_ew_ds(CurBase); /* Disable write */ - return; + initio_se2_ew_ds(base); /* Disable write */ } -/************************************************************************* - Function name : read_eeprom -**************************************************************************/ -void tul_read_eeprom(WORD CurBase) -{ - UCHAR gctrl; - - i91unvramp = &i91unvram; -/*------Enable EEProm programming ---*/ - gctrl = TUL_RD(CurBase, TUL_GCTRL); - TUL_WR(CurBase + TUL_GCTRL, gctrl | TUL_GCTRL_EEPROM_BIT); - if (tul_se2_rd_all(CurBase) != 1) { - tul_se2_update_all(CurBase); /* setup default pattern */ - tul_se2_rd_all(CurBase); /* load again */ - } -/*------ Disable EEProm programming ---*/ - gctrl = TUL_RD(CurBase, TUL_GCTRL); - TUL_WR(CurBase + TUL_GCTRL, gctrl & ~TUL_GCTRL_EEPROM_BIT); -} /* read_eeprom */ +/** + * initio_read_eeprom - Retrieve configuration + * @base: Base of InitIO Host Adapter + * + * Retrieve the host adapter configuration data from E2Prom. If the + * data is invalid then the defaults are used and are also restored + * into the E2PROM. This forms the access point for the SCSI driver + * into the E2PROM layer, the other functions for the E2PROM are all + * internal use. + * + * Must be called single threaded, uses a shared global area. + */ -static int Addi91u_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt, - BYTE bBus, BYTE bDevice) +static void initio_read_eeprom(unsigned long base) { - int i, j; + u8 gctrl; - for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { - if (i91u_adpt[i].ADPT_BIOS < wBIOS) - continue; - if (i91u_adpt[i].ADPT_BIOS == wBIOS) { - if (i91u_adpt[i].ADPT_BASE == wBASE) { - if (i91u_adpt[i].ADPT_Bus != 0xFF) - return 1; - } else if (i91u_adpt[i].ADPT_BASE < wBASE) - continue; - } - for (j = MAX_SUPPORTED_ADAPTERS - 1; j > i; j--) { - i91u_adpt[j].ADPT_BASE = i91u_adpt[j - 1].ADPT_BASE; - i91u_adpt[j].ADPT_INTR = i91u_adpt[j - 1].ADPT_INTR; - i91u_adpt[j].ADPT_BIOS = i91u_adpt[j - 1].ADPT_BIOS; - i91u_adpt[j].ADPT_Bus = i91u_adpt[j - 1].ADPT_Bus; - i91u_adpt[j].ADPT_Device = i91u_adpt[j - 1].ADPT_Device; - } - i91u_adpt[i].ADPT_BASE = wBASE; - i91u_adpt[i].ADPT_INTR = bInterrupt; - i91u_adpt[i].ADPT_BIOS = wBIOS; - i91u_adpt[i].ADPT_Bus = bBus; - i91u_adpt[i].ADPT_Device = bDevice; - return 0; + i91unvramp = &i91unvram; + /* Enable EEProm programming */ + gctrl = inb(base + TUL_GCTRL); + outb(gctrl | TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL); + if (initio_se2_rd_all(base) != 1) { + initio_se2_update_all(base); /* setup default pattern */ + initio_se2_rd_all(base); /* load again */ } - return 1; + /* Disable EEProm programming */ + gctrl = inb(base + TUL_GCTRL); + outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL); } -static void init_i91uAdapter_table(void) -{ - int i; - - for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { /* Initialize adapter structure */ - i91u_adpt[i].ADPT_BIOS = 0xffff; - i91u_adpt[i].ADPT_BASE = 0xffff; - i91u_adpt[i].ADPT_INTR = 0xff; - i91u_adpt[i].ADPT_Bus = 0xff; - i91u_adpt[i].ADPT_Device = 0xff; - } - return; -} +/** + * initio_stop_bm - stop bus master + * @host: InitIO we are stopping + * + * Stop any pending DMA operation, aborting the DMA if neccessary + */ -static void tul_stop_bm(HCS * pCurHcb) +static void initio_stop_bm(struct initio_host * host) { - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO); + if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ + outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0); + while ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } -/***************************************************************************/ -static void get_tulipPCIConfig(HCS * pCurHcb, int ch_idx) -{ - pCurHcb->HCS_Base = i91u_adpt[ch_idx].ADPT_BASE; /* Supply base address */ - pCurHcb->HCS_BIOS = i91u_adpt[ch_idx].ADPT_BIOS; /* Supply BIOS address */ - pCurHcb->HCS_Intr = i91u_adpt[ch_idx].ADPT_INTR; /* Supply interrupt line */ - return; -} +/** + * initio_reset_scsi - Reset SCSI host controller + * @host: InitIO host to reset + * @seconds: Recovery time + * + * Perform a full reset of the SCSI subsystem. + */ -/***************************************************************************/ -static int tul_reset_scsi(HCS * pCurHcb, int seconds) +static int initio_reset_scsi(struct initio_host * host, int seconds) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_BUS); + outb(TSC_RST_BUS, host->addr + TUL_SCtrl0); - while (!((pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt)) & TSS_SCSIRST_INT)); - /* reset tulip chip */ + while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT)) + cpu_relax(); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, 0); + /* reset tulip chip */ + outb(0, host->addr + TUL_SSignal); /* Stall for a while, wait for target's firmware ready,make it 2 sec ! */ /* SONY 5200 tape drive won't work if only stall for 1 sec */ - tul_do_pause(seconds * HZ); - - TUL_RD(pCurHcb->HCS_Base, TUL_SInt); + /* FIXME: this is a very long busy wait right now */ + initio_do_pause(seconds * HZ); - return (SCSI_RESET_SUCCESS); + inb(host->addr + TUL_SInt); + return SCSI_RESET_SUCCESS; } -/***************************************************************************/ -static int init_tulip(HCS * pCurHcb, SCB * scbp, int tul_num_scb, - BYTE * pbBiosAdr, int seconds) +/** + * initio_init - set up an InitIO host adapter + * @host: InitIO host adapter + * @num_scbs: Number of SCBS + * @bios_addr: BIOS address + * + * Set up the host adapter and devices according to the configuration + * retrieved from the E2PROM. + * + * Locking: Calls E2PROM layer code which is not re-enterable so must + * run single threaded for now. + */ + +static void initio_init(struct initio_host * host, u8 *bios_addr) { int i; - BYTE *pwFlags; - BYTE *pbHeads; - SCB *pTmpScb, *pPrevScb = NULL; - - pCurHcb->HCS_NumScbs = tul_num_scb; - pCurHcb->HCS_Semaph = 1; - spin_lock_init(&pCurHcb->HCS_SemaphLock); - pCurHcb->HCS_JSStatus0 = 0; - pCurHcb->HCS_Scb = scbp; - pCurHcb->HCS_NxtPend = scbp; - pCurHcb->HCS_NxtAvail = scbp; - for (i = 0, pTmpScb = scbp; i < tul_num_scb; i++, pTmpScb++) { - pTmpScb->SCB_TagId = i; - if (i != 0) - pPrevScb->SCB_NxtScb = pTmpScb; - pPrevScb = pTmpScb; - } - pPrevScb->SCB_NxtScb = NULL; - pCurHcb->HCS_ScbEnd = pTmpScb; - pCurHcb->HCS_FirstAvail = scbp; - pCurHcb->HCS_LastAvail = pPrevScb; - spin_lock_init(&pCurHcb->HCS_AvailLock); - pCurHcb->HCS_FirstPend = NULL; - pCurHcb->HCS_LastPend = NULL; - pCurHcb->HCS_FirstBusy = NULL; - pCurHcb->HCS_LastBusy = NULL; - pCurHcb->HCS_FirstDone = NULL; - pCurHcb->HCS_LastDone = NULL; - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - - tul_read_eeprom(pCurHcb->HCS_Base); -/*---------- get H/A configuration -------------*/ + u8 *flags; + u8 *heads; + + /* Get E2Prom configuration */ + initio_read_eeprom(host->addr); if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8) - pCurHcb->HCS_MaxTar = 8; + host->max_tar = 8; else - pCurHcb->HCS_MaxTar = 16; + host->max_tar = 16; - pCurHcb->HCS_Config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1; + host->config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1; - pCurHcb->HCS_SCSI_ID = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID; - pCurHcb->HCS_IdMask = ~(1 << pCurHcb->HCS_SCSI_ID); + host->scsi_id = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID; + host->idmask = ~(1 << host->scsi_id); #ifdef CHK_PARITY /* Enable parity error response */ - TUL_WR(pCurHcb->HCS_Base + TUL_PCMD, TUL_RD(pCurHcb->HCS_Base, TUL_PCMD) | 0x40); + outb(inb(host->addr + TUL_PCMD) | 0x40, host->addr + TUL_PCMD); #endif /* Mask all the interrupt */ - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + outb(0x1F, host->addr + TUL_Mask); - tul_stop_bm(pCurHcb); + initio_stop_bm(host); /* --- Initialize the tulip --- */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_CHIP); + outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0); /* program HBA's SCSI ID */ - TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, pCurHcb->HCS_SCSI_ID << 4); + outb(host->scsi_id << 4, host->addr + TUL_SScsiId); /* Enable Initiator Mode ,phase latch,alternate sync period mode, disable SCSI reset */ - if (pCurHcb->HCS_Config & HCC_EN_PAR) - pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR); + if (host->config & HCC_EN_PAR) + host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR); else - pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_SConf1); + host->sconf1 = (TSC_INITDEFAULT); + outb(host->sconf1, host->addr + TUL_SConfig); - /* Enable HW reselect */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); + /* Enable HW reselect */ + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, 0); + outb(0, host->addr + TUL_SPeriod); /* selection time out = 250 ms */ - TUL_WR(pCurHcb->HCS_Base + TUL_STimeOut, 153); + outb(153, host->addr + TUL_STimeOut); -/*--------- Enable SCSI terminator -----*/ - TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, (pCurHcb->HCS_Config & (HCC_ACT_TERM1 | HCC_ACT_TERM2))); - TUL_WR(pCurHcb->HCS_Base + TUL_GCTRL1, - ((pCurHcb->HCS_Config & HCC_AUTO_TERM) >> 4) | (TUL_RD(pCurHcb->HCS_Base, TUL_GCTRL1) & 0xFE)); + /* Enable SCSI terminator */ + outb((host->config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)), + host->addr + TUL_XCtrl); + outb(((host->config & HCC_AUTO_TERM) >> 4) | + (inb(host->addr + TUL_GCTRL1) & 0xFE), + host->addr + TUL_GCTRL1); for (i = 0, - pwFlags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config), - pbHeads = pbBiosAdr + 0x180; - i < pCurHcb->HCS_MaxTar; - i++, pwFlags++) { - pCurHcb->HCS_Tcs[i].TCS_Flags = *pwFlags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE); - if (pCurHcb->HCS_Tcs[i].TCS_Flags & TCF_EN_255) - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63; + flags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config), + heads = bios_addr + 0x180; + i < host->max_tar; + i++, flags++) { + host->targets[i].flags = *flags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + if (host->targets[i].flags & TCF_EN_255) + host->targets[i].drv_flags = TCF_DRV_255_63; else - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0; - pCurHcb->HCS_Tcs[i].TCS_JS_Period = 0; - pCurHcb->HCS_Tcs[i].TCS_SConfig0 = pCurHcb->HCS_SConf1; - pCurHcb->HCS_Tcs[i].TCS_DrvHead = *pbHeads++; - if (pCurHcb->HCS_Tcs[i].TCS_DrvHead == 255) - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63; + host->targets[i].drv_flags = 0; + host->targets[i].js_period = 0; + host->targets[i].sconfig0 = host->sconf1; + host->targets[i].heads = *heads++; + if (host->targets[i].heads == 255) + host->targets[i].drv_flags = TCF_DRV_255_63; else - pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0; - pCurHcb->HCS_Tcs[i].TCS_DrvSector = *pbHeads++; - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY; - pCurHcb->HCS_ActTags[i] = 0; - pCurHcb->HCS_MaxTags[i] = 0xFF; + host->targets[i].drv_flags = 0; + host->targets[i].sectors = *heads++; + host->targets[i].flags &= ~TCF_BUSY; + host->act_tags[i] = 0; + host->max_tags[i] = 0xFF; } /* for */ printk("i91u: PCI Base=0x%04X, IRQ=%d, BIOS=0x%04X0, SCSI ID=%d\n", - pCurHcb->HCS_Base, pCurHcb->HCS_Intr, - pCurHcb->HCS_BIOS, pCurHcb->HCS_SCSI_ID); -/*------------------- reset SCSI Bus ---------------------------*/ - if (pCurHcb->HCS_Config & HCC_SCSI_RESET) { - printk("i91u: Reset SCSI Bus ... \n"); - tul_reset_scsi(pCurHcb, seconds); + host->addr, host->irq, + host->bios_addr, host->scsi_id); + /* Reset SCSI Bus */ + if (host->config & HCC_SCSI_RESET) { + printk(KERN_INFO "i91u: Reset SCSI Bus ... \n"); + initio_reset_scsi(host, 10); } - TUL_WR(pCurHcb->HCS_Base + TUL_SCFG1, 0x17); - TUL_WR(pCurHcb->HCS_Base + TUL_SIntEnable, 0xE9); - return (0); + outb(0x17, host->addr + TUL_SCFG1); + outb(0xE9, host->addr + TUL_SIntEnable); } -/***************************************************************************/ -static SCB *tul_alloc_scb(HCS * hcsp) +/** + * initio_alloc_scb - Allocate an SCB + * @host: InitIO host we are allocating for + * + * Walk the SCB list for the controller and allocate a free SCB if + * one exists. + */ +static struct scsi_ctrl_blk *initio_alloc_scb(struct initio_host *host) { - SCB *pTmpScb; - ULONG flags; - spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags); - if ((pTmpScb = hcsp->HCS_FirstAvail) != NULL) { + struct scsi_ctrl_blk *scb; + unsigned long flags; + + spin_lock_irqsave(&host->avail_lock, flags); + if ((scb = host->first_avail) != NULL) { #if DEBUG_QUEUE - printk("find scb at %08lx\n", (ULONG) pTmpScb); + printk("find scb at %p\n", scb); #endif - if ((hcsp->HCS_FirstAvail = pTmpScb->SCB_NxtScb) == NULL) - hcsp->HCS_LastAvail = NULL; - pTmpScb->SCB_NxtScb = NULL; - pTmpScb->SCB_Status = SCB_RENT; + if ((host->first_avail = scb->next) == NULL) + host->last_avail = NULL; + scb->next = NULL; + scb->status = SCB_RENT; } - spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags); - return (pTmpScb); + spin_unlock_irqrestore(&host->avail_lock, flags); + return scb; } -/***************************************************************************/ -static void tul_release_scb(HCS * hcsp, SCB * scbp) +/** + * initio_release_scb - Release an SCB + * @host: InitIO host that owns the SCB + * @cmnd: SCB command block being returned + * + * Return an allocated SCB to the host free list + */ + +static void initio_release_scb(struct initio_host * host, struct scsi_ctrl_blk * cmnd) { - ULONG flags; + unsigned long flags; #if DEBUG_QUEUE - printk("Release SCB %lx; ", (ULONG) scbp); + printk("Release SCB %p; ", cmnd); #endif - spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags); - scbp->SCB_Srb = NULL; - scbp->SCB_Status = 0; - scbp->SCB_NxtScb = NULL; - if (hcsp->HCS_LastAvail != NULL) { - hcsp->HCS_LastAvail->SCB_NxtScb = scbp; - hcsp->HCS_LastAvail = scbp; + spin_lock_irqsave(&(host->avail_lock), flags); + cmnd->srb = NULL; + cmnd->status = 0; + cmnd->next = NULL; + if (host->last_avail != NULL) { + host->last_avail->next = cmnd; + host->last_avail = cmnd; } else { - hcsp->HCS_FirstAvail = scbp; - hcsp->HCS_LastAvail = scbp; + host->first_avail = cmnd; + host->last_avail = cmnd; } - spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags); + spin_unlock_irqrestore(&(host->avail_lock), flags); } /***************************************************************************/ -static void tul_append_pend_scb(HCS * pCurHcb, SCB * scbp) +static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("Append pend SCB %lx; ", (ULONG) scbp); + printk("Append pend SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_PEND; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastPend != NULL) { - pCurHcb->HCS_LastPend->SCB_NxtScb = scbp; - pCurHcb->HCS_LastPend = scbp; + scbp->status = SCB_PEND; + scbp->next = NULL; + if (host->last_pending != NULL) { + host->last_pending->next = scbp; + host->last_pending = scbp; } else { - pCurHcb->HCS_FirstPend = scbp; - pCurHcb->HCS_LastPend = scbp; + host->first_pending = scbp; + host->last_pending = scbp; } } /***************************************************************************/ -static void tul_push_pend_scb(HCS * pCurHcb, SCB * scbp) +static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("Push pend SCB %lx; ", (ULONG) scbp); + printk("Push pend SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_PEND; - if ((scbp->SCB_NxtScb = pCurHcb->HCS_FirstPend) != NULL) { - pCurHcb->HCS_FirstPend = scbp; + scbp->status = SCB_PEND; + if ((scbp->next = host->first_pending) != NULL) { + host->first_pending = scbp; } else { - pCurHcb->HCS_FirstPend = scbp; - pCurHcb->HCS_LastPend = scbp; + host->first_pending = scbp; + host->last_pending = scbp; } } -/***************************************************************************/ -static SCB *tul_find_first_pend_scb(HCS * pCurHcb) +static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host) { - SCB *pFirstPend; + struct scsi_ctrl_blk *first; - pFirstPend = pCurHcb->HCS_FirstPend; - while (pFirstPend != NULL) { - if (pFirstPend->SCB_Opcode != ExecSCSI) { - return (pFirstPend); - } - if (pFirstPend->SCB_TagMsg == 0) { - if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] == 0) && - !(pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) { - return (pFirstPend); - } + first = host->first_pending; + while (first != NULL) { + if (first->opcode != ExecSCSI) + return first; + if (first->tagmsg == 0) { + if ((host->act_tags[first->target] == 0) && + !(host->targets[first->target].flags & TCF_BUSY)) + return first; } else { - if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] >= - pCurHcb->HCS_MaxTags[pFirstPend->SCB_Target]) | - (pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) { - pFirstPend = pFirstPend->SCB_NxtScb; + if ((host->act_tags[first->target] >= + host->max_tags[first->target]) | + (host->targets[first->target].flags & TCF_BUSY)) { + first = first->next; continue; } - return (pFirstPend); + return first; } - pFirstPend = pFirstPend->SCB_NxtScb; + first = first->next; } - - - return (pFirstPend); + return first; } -/***************************************************************************/ -static void tul_unlink_pend_scb(HCS * pCurHcb, SCB * pCurScb) + +static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - SCB *pTmpScb, *pPrevScb; + struct scsi_ctrl_blk *tmp, *prev; #if DEBUG_QUEUE - printk("unlink pend SCB %lx; ", (ULONG) pCurScb); + printk("unlink pend SCB %p; ", scb); #endif - pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend; - while (pTmpScb != NULL) { - if (pCurScb == pTmpScb) { /* Unlink this SCB */ - if (pTmpScb == pCurHcb->HCS_FirstPend) { - if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastPend = NULL; + prev = tmp = host->first_pending; + while (tmp != NULL) { + if (scb == tmp) { /* Unlink this SCB */ + if (tmp == host->first_pending) { + if ((host->first_pending = tmp->next) == NULL) + host->last_pending = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastPend) - pCurHcb->HCS_LastPend = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; } - pTmpScb->SCB_NxtScb = NULL; + tmp->next = NULL; break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - return; } -/***************************************************************************/ -static void tul_append_busy_scb(HCS * pCurHcb, SCB * scbp) + +static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { #if DEBUG_QUEUE - printk("append busy SCB %lx; ", (ULONG) scbp); + printk("append busy SCB %o; ", scbp); #endif - if (scbp->SCB_TagMsg) - pCurHcb->HCS_ActTags[scbp->SCB_Target]++; + if (scbp->tagmsg) + host->act_tags[scbp->target]++; else - pCurHcb->HCS_Tcs[scbp->SCB_Target].TCS_Flags |= TCF_BUSY; - scbp->SCB_Status = SCB_BUSY; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastBusy != NULL) { - pCurHcb->HCS_LastBusy->SCB_NxtScb = scbp; - pCurHcb->HCS_LastBusy = scbp; + host->targets[scbp->target].flags |= TCF_BUSY; + scbp->status = SCB_BUSY; + scbp->next = NULL; + if (host->last_busy != NULL) { + host->last_busy->next = scbp; + host->last_busy = scbp; } else { - pCurHcb->HCS_FirstBusy = scbp; - pCurHcb->HCS_LastBusy = scbp; + host->first_busy = scbp; + host->last_busy = scbp; } } /***************************************************************************/ -static SCB *tul_pop_busy_scb(HCS * pCurHcb) +static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host) { - SCB *pTmpScb; + struct scsi_ctrl_blk *tmp; - if ((pTmpScb = pCurHcb->HCS_FirstBusy) != NULL) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; - pTmpScb->SCB_NxtScb = NULL; - if (pTmpScb->SCB_TagMsg) - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; + if ((tmp = host->first_busy) != NULL) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; + tmp->next = NULL; + if (tmp->tagmsg) + host->act_tags[tmp->target]--; else - pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY; + host->targets[tmp->target].flags &= ~TCF_BUSY; } #if DEBUG_QUEUE - printk("Pop busy SCB %lx; ", (ULONG) pTmpScb); + printk("Pop busy SCB %p; ", tmp); #endif - return (pTmpScb); + return tmp; } /***************************************************************************/ -static void tul_unlink_busy_scb(HCS * pCurHcb, SCB * pCurScb) +static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - SCB *pTmpScb, *pPrevScb; + struct scsi_ctrl_blk *tmp, *prev; #if DEBUG_QUEUE - printk("unlink busy SCB %lx; ", (ULONG) pCurScb); + printk("unlink busy SCB %p; ", scb); #endif - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; - while (pTmpScb != NULL) { - if (pCurScb == pTmpScb) { /* Unlink this SCB */ - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + prev = tmp = host->first_busy; + while (tmp != NULL) { + if (scb == tmp) { /* Unlink this SCB */ + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_NxtScb = NULL; - if (pTmpScb->SCB_TagMsg) - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; + tmp->next = NULL; + if (tmp->tagmsg) + host->act_tags[tmp->target]--; else - pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY; + host->targets[tmp->target].flags &= ~TCF_BUSY; break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } return; } -/***************************************************************************/ -SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun) +struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun) { - SCB *pTmpScb, *pPrevScb; - WORD scbp_tarlun; + struct scsi_ctrl_blk *tmp, *prev; + u16 scbp_tarlun; - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; - while (pTmpScb != NULL) { - scbp_tarlun = (pTmpScb->SCB_Lun << 8) | (pTmpScb->SCB_Target); + prev = tmp = host->first_busy; + while (tmp != NULL) { + scbp_tarlun = (tmp->lun << 8) | (tmp->target); if (scbp_tarlun == tarlun) { /* Unlink this SCB */ break; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } #if DEBUG_QUEUE - printk("find busy SCB %lx; ", (ULONG) pTmpScb); + printk("find busy SCB %p; ", tmp); #endif - return (pTmpScb); + return tmp; } -/***************************************************************************/ -static void tul_append_done_scb(HCS * pCurHcb, SCB * scbp) +static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) { - #if DEBUG_QUEUE - printk("append done SCB %lx; ", (ULONG) scbp); + printk("append done SCB %p; ", scbp); #endif - scbp->SCB_Status = SCB_DONE; - scbp->SCB_NxtScb = NULL; - if (pCurHcb->HCS_LastDone != NULL) { - pCurHcb->HCS_LastDone->SCB_NxtScb = scbp; - pCurHcb->HCS_LastDone = scbp; + scbp->status = SCB_DONE; + scbp->next = NULL; + if (host->last_done != NULL) { + host->last_done->next = scbp; + host->last_done = scbp; } else { - pCurHcb->HCS_FirstDone = scbp; - pCurHcb->HCS_LastDone = scbp; + host->first_done = scbp; + host->last_done = scbp; } } -/***************************************************************************/ -SCB *tul_find_done_scb(HCS * pCurHcb) +struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host) { - SCB *pTmpScb; + struct scsi_ctrl_blk *tmp; - - if ((pTmpScb = pCurHcb->HCS_FirstDone) != NULL) { - if ((pCurHcb->HCS_FirstDone = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastDone = NULL; - pTmpScb->SCB_NxtScb = NULL; + if ((tmp = host->first_done) != NULL) { + if ((host->first_done = tmp->next) == NULL) + host->last_done = NULL; + tmp->next = NULL; } #if DEBUG_QUEUE - printk("find done SCB %lx; ", (ULONG) pTmpScb); + printk("find done SCB %p; ",tmp); #endif - return (pTmpScb); + return tmp; } -/***************************************************************************/ -static int tul_abort_srb(HCS * pCurHcb, struct scsi_cmnd *srbp) +static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp) { - ULONG flags; - SCB *pTmpScb, *pPrevScb; + unsigned long flags; + struct scsi_ctrl_blk *tmp, *prev; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); + spin_lock_irqsave(&host->semaph_lock, flags); - if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + if ((host->semaph == 0) && (host->active == NULL)) { /* disable Jasmin SCSI Int */ - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - + outb(0x1F, host->addr + TUL_Mask); + spin_unlock_irqrestore(&host->semaph_lock, flags); + /* FIXME: synchronize_irq needed ? */ + tulip_main(host); + spin_lock_irqsave(&host->semaph_lock, flags); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SNOOZE; } - pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend; /* Check Pend queue */ - while (pTmpScb != NULL) { + prev = tmp = host->first_pending; /* Check Pend queue */ + while (tmp != NULL) { /* 07/27/98 */ - if (pTmpScb->SCB_Srb == srbp) { - if (pTmpScb == pCurHcb->HCS_ActScb) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + if (tmp->srb == srbp) { + if (tmp == host->active) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; - } else if (pTmpScb == pCurHcb->HCS_FirstPend) { - if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastPend = NULL; + } else if (tmp == host->first_pending) { + if ((host->first_pending = tmp->next) == NULL) + host->last_pending = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastPend) - pCurHcb->HCS_LastPend = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; } - pTmpScb->SCB_HaStat = HOST_ABORTED; - pTmpScb->SCB_Flags |= SCF_DONE; - if (pTmpScb->SCB_Flags & SCF_POST) - (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + tmp->hastat = HOST_ABORTED; + tmp->flags |= SCF_DONE; + if (tmp->flags & SCF_POST) + (*tmp->post) ((u8 *) host, (u8 *) tmp); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SUCCESS; } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pTmpScb != NULL) { - - if (pTmpScb->SCB_Srb == srbp) { - - if (pTmpScb == pCurHcb->HCS_ActScb) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + prev = tmp = host->first_busy; /* Check Busy queue */ + while (tmp != NULL) { + if (tmp->srb == srbp) { + if (tmp == host->active) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; - } else if (pTmpScb->SCB_TagMsg == 0) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + } else if (tmp->tagmsg == 0) { + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_BUSY; } else { - pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--; - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + host->act_tags[tmp->target]--; + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_NxtScb = NULL; + tmp->next = NULL; - pTmpScb->SCB_HaStat = HOST_ABORTED; - pTmpScb->SCB_Flags |= SCF_DONE; - if (pTmpScb->SCB_Flags & SCF_POST) - (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + tmp->hastat = HOST_ABORTED; + tmp->flags |= SCF_DONE; + if (tmp->flags & SCF_POST) + (*tmp->post) ((u8 *) host, (u8 *) tmp); + spin_unlock_irqrestore(&host->semaph_lock, flags); return SCSI_ABORT_SUCCESS; } } - pPrevScb = pTmpScb; - pTmpScb = pTmpScb->SCB_NxtScb; + prev = tmp; + tmp = tmp->next; } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return (SCSI_ABORT_NOT_RUNNING); + spin_unlock_irqrestore(&host->semaph_lock, flags); + return SCSI_ABORT_NOT_RUNNING; } /***************************************************************************/ -static int tul_bad_seq(HCS * pCurHcb) +static int initio_bad_seq(struct initio_host * host) { - SCB *pCurScb; - - printk("tul_bad_seg c=%d\n", pCurHcb->HCS_Index); - - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) { - tul_unlink_busy_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - pCurScb->SCB_TaStat = 0; - tul_append_done_scb(pCurHcb, pCurScb); - } - tul_stop_bm(pCurHcb); - - tul_reset_scsi(pCurHcb, 8); /* 7/29/98 */ - - return (tul_post_scsi_rst(pCurHcb)); -} - -#if 0 - -/************************************************************************/ -static int tul_device_reset(HCS * pCurHcb, struct scsi_cmnd *pSrb, - unsigned int target, unsigned int ResetFlags) -{ - ULONG flags; - SCB *pScb; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - if (ResetFlags & SCSI_RESET_ASYNCHRONOUS) { - - if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - return SCSI_RESET_SNOOZE; - } - pScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pScb != NULL) { - if (pScb->SCB_Srb == pSrb) - break; - pScb = pScb->SCB_NxtScb; - } - if (pScb == NULL) { - printk("Unable to Reset - No SCB Found\n"); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_NOT_RUNNING; - } - } - if ((pScb = tul_alloc_scb(pCurHcb)) == NULL) { - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_NOT_RUNNING; - } - pScb->SCB_Opcode = BusDevRst; - pScb->SCB_Flags = SCF_POST; - pScb->SCB_Target = target; - pScb->SCB_Mode = 0; - - pScb->SCB_Srb = NULL; - if (ResetFlags & SCSI_RESET_SYNCHRONOUS) { - pScb->SCB_Srb = pSrb; - } - tul_push_pend_scb(pCurHcb, pScb); /* push this SCB to Pending queue */ - - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + struct scsi_ctrl_blk *scb; - tulip_main(pCurHcb); + printk("initio_bad_seg c=%d\n", host->index); - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); + if ((scb = host->active) != NULL) { + initio_unlink_busy_scb(host, scb); + scb->hastat = HOST_BAD_PHAS; + scb->tastat = 0; + initio_append_done_scb(host, scb); } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return SCSI_RESET_PENDING; + initio_stop_bm(host); + initio_reset_scsi(host, 8); /* 7/29/98 */ + return initio_post_scsi_rst(host); } -static int tul_reset_scsi_bus(HCS * pCurHcb) -{ - ULONG flags; - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tul_stop_bm(pCurHcb); - - tul_reset_scsi(pCurHcb, 2); /* 7/29/98 */ - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - tul_post_scsi_rst(pCurHcb); - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - - tulip_main(pCurHcb); - - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); - return (SCSI_RESET_SUCCESS | SCSI_RESET_HOST_RESET); -} - -#endif /* 0 */ /************************************************************************/ -static void tul_exec_scb(HCS * pCurHcb, SCB * pCurScb) +static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) { - ULONG flags; + unsigned long flags; - pCurScb->SCB_Mode = 0; + scb->mode = 0; - pCurScb->SCB_SGIdx = 0; - pCurScb->SCB_SGMax = pCurScb->SCB_SGLen; + scb->sgidx = 0; + scb->sgmax = scb->sglen; - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); + spin_lock_irqsave(&host->semaph_lock, flags); - tul_append_pend_scb(pCurHcb, pCurScb); /* Append this SCB to Pending queue */ + initio_append_pend_scb(host, scb); /* Append this SCB to Pending queue */ /* VVVVV 07/21/98 */ - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); - /* disable Jasmin SCSI Int */ - pCurHcb->HCS_Semaph = 0; - - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + if (host->semaph == 1) { + /* Disable Jasmin SCSI Int */ + outb(0x1F, host->addr + TUL_Mask); + host->semaph = 0; + spin_unlock_irqrestore(&host->semaph_lock, flags); - tulip_main(pCurHcb); + tulip_main(host); - spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags); - - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); + spin_lock_irqsave(&host->semaph_lock, flags); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); } - spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags); + spin_unlock_irqrestore(&host->semaph_lock, flags); return; } /***************************************************************************/ -static int tul_isr(HCS * pCurHcb) +static int initio_isr(struct initio_host * host) { - /* Enter critical section */ - - if (TUL_RD(pCurHcb->HCS_Base, TUL_Int) & TSS_INT_PENDING) { - if (pCurHcb->HCS_Semaph == 1) { - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F); + if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) { + if (host->semaph == 1) { + outb(0x1F, host->addr + TUL_Mask); /* Disable Tulip SCSI Int */ - pCurHcb->HCS_Semaph = 0; + host->semaph = 0; - tulip_main(pCurHcb); + tulip_main(host); - pCurHcb->HCS_Semaph = 1; - TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F); - return (1); + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); + return 1; } } - return (0); + return 0; } -/***************************************************************************/ -int tulip_main(HCS * pCurHcb) +static int tulip_main(struct initio_host * host) { - SCB *pCurScb; + struct scsi_ctrl_blk *scb; for (;;) { - - tulip_scsi(pCurHcb); /* Call tulip_scsi */ - - while ((pCurScb = tul_find_done_scb(pCurHcb)) != NULL) { /* find done entry */ - if (pCurScb->SCB_TaStat == INI_QUEUE_FULL) { - pCurHcb->HCS_MaxTags[pCurScb->SCB_Target] = - pCurHcb->HCS_ActTags[pCurScb->SCB_Target] - 1; - pCurScb->SCB_TaStat = 0; - tul_append_pend_scb(pCurHcb, pCurScb); + tulip_scsi(host); /* Call tulip_scsi */ + + /* Walk the list of completed SCBs */ + while ((scb = initio_find_done_scb(host)) != NULL) { /* find done entry */ + if (scb->tastat == INI_QUEUE_FULL) { + host->max_tags[scb->target] = + host->act_tags[scb->target] - 1; + scb->tastat = 0; + initio_append_pend_scb(host, scb); continue; } - if (!(pCurScb->SCB_Mode & SCM_RSENS)) { /* not in auto req. sense mode */ - if (pCurScb->SCB_TaStat == 2) { + if (!(scb->mode & SCM_RSENS)) { /* not in auto req. sense mode */ + if (scb->tastat == 2) { /* clr sync. nego flag */ - if (pCurScb->SCB_Flags & SCF_SENSE) { - BYTE len; - len = pCurScb->SCB_SenseLen; + if (scb->flags & SCF_SENSE) { + u8 len; + len = scb->senselen; if (len == 0) len = 1; - pCurScb->SCB_BufLen = pCurScb->SCB_SenseLen; - pCurScb->SCB_BufPtr = pCurScb->SCB_SensePtr; - pCurScb->SCB_Flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */ -/* pCurScb->SCB_Flags |= SCF_NO_DCHK; */ - /* so, we won't report worng direction in xfer_data_in, + scb->buflen = scb->senselen; + scb->bufptr = scb->senseptr; + scb->flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */ + /* so, we won't report wrong direction in xfer_data_in, and won't report HOST_DO_DU in state_6 */ - pCurScb->SCB_Mode = SCM_RSENS; - pCurScb->SCB_Ident &= 0xBF; /* Disable Disconnect */ - pCurScb->SCB_TagMsg = 0; - pCurScb->SCB_TaStat = 0; - pCurScb->SCB_CDBLen = 6; - pCurScb->SCB_CDB[0] = SCSICMD_RequestSense; - pCurScb->SCB_CDB[1] = 0; - pCurScb->SCB_CDB[2] = 0; - pCurScb->SCB_CDB[3] = 0; - pCurScb->SCB_CDB[4] = len; - pCurScb->SCB_CDB[5] = 0; - tul_push_pend_scb(pCurHcb, pCurScb); + scb->mode = SCM_RSENS; + scb->ident &= 0xBF; /* Disable Disconnect */ + scb->tagmsg = 0; + scb->tastat = 0; + scb->cdblen = 6; + scb->cdb[0] = SCSICMD_RequestSense; + scb->cdb[1] = 0; + scb->cdb[2] = 0; + scb->cdb[3] = 0; + scb->cdb[4] = len; + scb->cdb[5] = 0; + initio_push_pend_scb(host, scb); break; } } } else { /* in request sense mode */ - if (pCurScb->SCB_TaStat == 2) { /* check contition status again after sending + if (scb->tastat == 2) { /* check contition status again after sending requset sense cmd 0x3 */ - pCurScb->SCB_HaStat = HOST_BAD_PHAS; + scb->hastat = HOST_BAD_PHAS; } - pCurScb->SCB_TaStat = 2; + scb->tastat = 2; } - pCurScb->SCB_Flags |= SCF_DONE; - if (pCurScb->SCB_Flags & SCF_POST) { - (*pCurScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pCurScb); + scb->flags |= SCF_DONE; + if (scb->flags & SCF_POST) { + /* FIXME: only one post method and lose casts */ + (*scb->post) ((u8 *) host, (u8 *) scb); } } /* while */ - /* find_active: */ - if (TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0) & TSS_INT_PENDING) + if (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING) continue; - - if (pCurHcb->HCS_ActScb) { /* return to OS and wait for xfer_done_ISR/Selected_ISR */ + if (host->active) /* return to OS and wait for xfer_done_ISR/Selected_ISR */ return 1; /* return to OS, enable interrupt */ - } /* Check pending SCB */ - if (tul_find_first_pend_scb(pCurHcb) == NULL) { + if (initio_find_first_pend_scb(host) == NULL) return 1; /* return to OS, enable interrupt */ - } } /* End of for loop */ /* statement won't reach here */ } - - - -/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ -/***************************************************************************/ -/***************************************************************************/ -/***************************************************************************/ -/***************************************************************************/ - -/***************************************************************************/ -void tulip_scsi(HCS * pCurHcb) +static void tulip_scsi(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; /* make sure to service interrupt asap */ - - if ((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) & TSS_INT_PENDING) { - - pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK; - pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* SCSI bus reset detected */ - int_tul_scsi_rst(pCurHcb); + if ((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING) { + host->phase = host->jsstatus0 & TSS_PH_MASK; + host->jsstatus1 = inb(host->addr + TUL_SStatus1); + host->jsint = inb(host->addr + TUL_SInt); + if (host->jsint & TSS_SCSIRST_INT) { /* SCSI bus reset detected */ + int_initio_scsi_rst(host); return; } - if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) { /* if selected/reselected interrupt */ - if (int_tul_resel(pCurHcb) == 0) - tul_next_state(pCurHcb); + if (host->jsint & TSS_RESEL_INT) { /* if selected/reselected interrupt */ + if (int_initio_resel(host) == 0) + initio_next_state(host); return; } - if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) { - int_tul_busfree(pCurHcb); + if (host->jsint & TSS_SEL_TIMEOUT) { + int_initio_busfree(host); return; } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - int_tul_busfree(pCurHcb); /* unexpected bus free or sel timeout */ + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + int_initio_busfree(host); /* unexpected bus free or sel timeout */ return; } - if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */ - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) - tul_next_state(pCurHcb); + if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */ + if ((scb = host->active) != NULL) + initio_next_state(host); return; } } - if (pCurHcb->HCS_ActScb != NULL) + if (host->active != NULL) return; - if ((pCurScb = tul_find_first_pend_scb(pCurHcb)) == NULL) + if ((scb = initio_find_first_pend_scb(host)) == NULL) return; /* program HBA's SCSI ID & target SCSI ID */ - TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, - (pCurHcb->HCS_SCSI_ID << 4) | (pCurScb->SCB_Target & 0x0F)); - if (pCurScb->SCB_Opcode == ExecSCSI) { - pCurTcb = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; + outb((host->scsi_id << 4) | (scb->target & 0x0F), + host->addr + TUL_SScsiId); + if (scb->opcode == ExecSCSI) { + active_tc = &host->targets[scb->target]; - if (pCurScb->SCB_TagMsg) - pCurTcb->TCS_DrvFlags |= TCF_DRV_EN_TAG; + if (scb->tagmsg) + active_tc->drv_flags |= TCF_DRV_EN_TAG; else - pCurTcb->TCS_DrvFlags &= ~TCF_DRV_EN_TAG; + active_tc->drv_flags &= ~TCF_DRV_EN_TAG; - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period); - if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { /* do wdtr negotiation */ - tul_select_atn_stop(pCurHcb, pCurScb); + outb(active_tc->js_period, host->addr + TUL_SPeriod); + if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { /* do wdtr negotiation */ + initio_select_atn_stop(host, scb); } else { - if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */ - tul_select_atn_stop(pCurHcb, pCurScb); + if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */ + initio_select_atn_stop(host, scb); } else { - if (pCurScb->SCB_TagMsg) - tul_select_atn3(pCurHcb, pCurScb); + if (scb->tagmsg) + initio_select_atn3(host, scb); else - tul_select_atn(pCurHcb, pCurScb); + initio_select_atn(host, scb); } } - if (pCurScb->SCB_Flags & SCF_POLL) { - while (wait_tulip(pCurHcb) != -1) { - if (tul_next_state(pCurHcb) == -1) + if (scb->flags & SCF_POLL) { + while (wait_tulip(host) != -1) { + if (initio_next_state(host) == -1) break; } } - } else if (pCurScb->SCB_Opcode == BusDevRst) { - tul_select_atn_stop(pCurHcb, pCurScb); - pCurScb->SCB_NxtStat = 8; - if (pCurScb->SCB_Flags & SCF_POLL) { - while (wait_tulip(pCurHcb) != -1) { - if (tul_next_state(pCurHcb) == -1) + } else if (scb->opcode == BusDevRst) { + initio_select_atn_stop(host, scb); + scb->next_state = 8; + if (scb->flags & SCF_POLL) { + while (wait_tulip(host) != -1) { + if (initio_next_state(host) == -1) break; } } - } else if (pCurScb->SCB_Opcode == AbortCmd) { - if (tul_abort_srb(pCurHcb, pCurScb->SCB_Srb) != 0) { - - - tul_unlink_pend_scb(pCurHcb, pCurScb); - - tul_release_scb(pCurHcb, pCurScb); + } else if (scb->opcode == AbortCmd) { + if (initio_abort_srb(host, scb->srb) != 0) { + initio_unlink_pend_scb(host, scb); + initio_release_scb(host, scb); } else { - pCurScb->SCB_Opcode = BusDevRst; - tul_select_atn_stop(pCurHcb, pCurScb); - pCurScb->SCB_NxtStat = 8; + scb->opcode = BusDevRst; + initio_select_atn_stop(host, scb); + scb->next_state = 8; } - -/* 08/03/98 */ } else { - tul_unlink_pend_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = 0x16; /* bad command */ - tul_append_done_scb(pCurHcb, pCurScb); + initio_unlink_pend_scb(host, scb); + scb->hastat = 0x16; /* bad command */ + initio_append_done_scb(host, scb); } return; } +/** + * initio_next_state - Next SCSI state + * @host: InitIO host we are processing + * + * Progress the active command block along the state machine + * until we hit a state which we must wait for activity to occur. + * + * Returns zero or a negative code. + */ -/***************************************************************************/ -int tul_next_state(HCS * pCurHcb) +static int initio_next_state(struct initio_host * host) { int next; - next = pCurHcb->HCS_ActScb->SCB_NxtStat; + next = host->active->next_state; for (;;) { switch (next) { case 1: - next = tul_state_1(pCurHcb); + next = initio_state_1(host); break; case 2: - next = tul_state_2(pCurHcb); + next = initio_state_2(host); break; case 3: - next = tul_state_3(pCurHcb); + next = initio_state_3(host); break; case 4: - next = tul_state_4(pCurHcb); + next = initio_state_4(host); break; case 5: - next = tul_state_5(pCurHcb); + next = initio_state_5(host); break; case 6: - next = tul_state_6(pCurHcb); + next = initio_state_6(host); break; case 7: - next = tul_state_7(pCurHcb); + next = initio_state_7(host); break; case 8: - return (tul_bus_device_reset(pCurHcb)); + return initio_bus_device_reset(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } if (next <= 0) return next; @@ -1554,338 +1314,363 @@ int tul_next_state(HCS * pCurHcb) } -/***************************************************************************/ -/* sTate after selection with attention & stop */ -int tul_state_1(HCS * pCurHcb) +/** + * initio_state_1 - SCSI state machine + * @host: InitIO host we are controlling + * + * Perform SCSI state processing for Select/Attention/Stop + */ + +static int initio_state_1(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; #if DEBUG_STATE printk("-s1-"); #endif - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_append_busy_scb(pCurHcb, pCurScb); + /* Move the SCB from pending to busy */ + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); + outb(active_tc->sconfig0, host->addr + TUL_SConfig ); /* ATN on */ - if (pCurHcb->HCS_Phase == MSG_OUT) { - - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, (TSC_EN_BUS_IN | TSC_HW_RESELECT)); - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - - if (pCurScb->SCB_TagMsg) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId); - } - if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { - - pCurTcb->TCS_Flags |= TCF_WDTR_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2); /* Extended msg length */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* Sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* Start from 16 bits */ - } else if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { - - pCurTcb->TCS_Flags |= TCF_SYNC_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* extended msg length */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET); /* REQ/ACK offset */ - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - return (3); -} - + if (host->phase == MSG_OUT) { + outb(TSC_EN_BUS_IN | TSC_HW_RESELECT, host->addr + TUL_SCtrl1); + outb(scb->ident, host->addr + TUL_SFifo); + + if (scb->tagmsg) { + outb(scb->tagmsg, host->addr + TUL_SFifo); + outb(scb->tagid, host->addr + TUL_SFifo); + } + if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { + active_tc->flags |= TCF_WDTR_DONE; + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); /* Extended msg length */ + outb(3, host->addr + TUL_SFifo); /* Sync request */ + outb(1, host->addr + TUL_SFifo); /* Start from 16 bits */ + } else if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { + active_tc->flags |= TCF_SYNC_DONE; + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* extended msg length */ + outb(1, host->addr + TUL_SFifo); /* sync request */ + outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo); + outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */ + } + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + } + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal); + /* Into before CDB xfer */ + return 3; +} + + +/** + * initio_state_2 - SCSI state machine + * @host: InitIO host we are controlling + * + * state after selection with attention + * state after selection with attention3 + */ -/***************************************************************************/ -/* state after selection with attention */ -/* state after selection with attention3 */ -int tul_state_2(HCS * pCurHcb) +static int initio_state_2(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; #if DEBUG_STATE printk("-s2-"); #endif - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_append_busy_scb(pCurHcb, pCurScb); + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); + outb(active_tc->sconfig0, host->addr + TUL_SConfig); - if (pCurHcb->HCS_JSStatus1 & TSS_CMD_PH_CMP) { - return (4); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - return (3); + if (host->jsstatus1 & TSS_CMD_PH_CMP) + return 4; + + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal); + /* Into before CDB xfer */ + return 3; } -/***************************************************************************/ -/* state before CDB xfer is done */ -int tul_state_3(HCS * pCurHcb) +/** + * initio_state_3 - SCSI state machine + * @host: InitIO host we are controlling + * + * state before CDB xfer is done + */ + +static int initio_state_3(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; int i; #if DEBUG_STATE printk("-s3-"); #endif for (;;) { - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case CMD_OUT: /* Command out phase */ - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase == CMD_OUT) { - return (tul_bad_seq(pCurHcb)); - } - return (4); + for (i = 0; i < (int) scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + if (host->phase == CMD_OUT) + return initio_bad_seq(host); + return 4; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 3; - if (tul_msgin(pCurHcb) == -1) - return (-1); + scb->next_state = 3; + if (initio_msgin(host) == -1) + return -1; break; case STATUS_IN: /* Status phase */ - if (tul_status_msg(pCurHcb) == -1) - return (-1); + if (initio_status_msg(host) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - if (pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) { - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - + if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) { + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; } else { - pCurTcb->TCS_Flags |= TCF_SYNC_DONE; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); /* ext. msg len */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); /* sync request */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET); /* REQ/ACK offset */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)); + active_tc->flags |= TCF_SYNC_DONE; + + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* ext. msg len */ + outb(1, host->addr + TUL_SFifo); /* sync request */ + outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo); + outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7), host->addr + TUL_SSignal); } break; - default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } +/** + * initio_state_4 - SCSI state machine + * @host: InitIO host we are controlling + * + * SCSI state machine. State 4 + */ -/***************************************************************************/ -int tul_state_4(HCS * pCurHcb) +static int initio_state_4(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; #if DEBUG_STATE printk("-s4-"); #endif - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_NO_XF) { - return (6); /* Go to state 6 */ + if ((scb->flags & SCF_DIR) == SCF_NO_XF) { + return 6; /* Go to state 6 (After data) */ } for (;;) { - if (pCurScb->SCB_BufLen == 0) - return (6); /* Go to state 6 */ + if (scb->buflen == 0) + return 6; - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case STATUS_IN: /* Status phase */ - if ((pCurScb->SCB_Flags & SCF_DIR) != 0) { /* if direction bit set then report data underrun */ - pCurScb->SCB_HaStat = HOST_DO_DU; - } - if ((tul_status_msg(pCurHcb)) == -1) - return (-1); + if ((scb->flags & SCF_DIR) != 0) /* if direction bit set then report data underrun */ + scb->hastat = HOST_DO_DU; + if ((initio_status_msg(host)) == -1) + return -1; break; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 0x4; - if (tul_msgin(pCurHcb) == -1) - return (-1); + scb->next_state = 0x4; + if (initio_msgin(host) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - pCurScb->SCB_BufLen = 0; - pCurScb->SCB_HaStat = HOST_DO_DU; - if (tul_msgout_ide(pCurHcb) == -1) - return (-1); - return (6); /* Go to state 6 */ + if (host->jsstatus0 & TSS_PAR_ERROR) { + scb->buflen = 0; + scb->hastat = HOST_DO_DU; + if (initio_msgout_ide(host) == -1) + return -1; + return 6; } else { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; } break; case DATA_IN: /* Data in phase */ - return (tul_xfer_data_in(pCurHcb)); + return initio_xfer_data_in(host); case DATA_OUT: /* Data out phase */ - return (tul_xfer_data_out(pCurHcb)); + return initio_xfer_data_out(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } -/***************************************************************************/ -/* state after dma xfer done or phase change before xfer done */ -int tul_state_5(HCS * pCurHcb) +/** + * initio_state_5 - SCSI state machine + * @host: InitIO host we are controlling + * + * State after dma xfer done or phase change before xfer done + */ + +static int initio_state_5(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; long cnt, xcnt; /* cannot use unsigned !! code: if (xcnt < 0) */ #if DEBUG_STATE printk("-s5-"); #endif -/*------ get remaining count -------*/ - - cnt = TUL_RDLONG(pCurHcb->HCS_Base, TUL_SCnt0) & 0x0FFFFFF; + /*------ get remaining count -------*/ + cnt = inl(host->addr + TUL_SCnt0) & 0x0FFFFFF; - if (TUL_RD(pCurHcb->HCS_Base, TUL_XCmd) & 0x20) { + if (inb(host->addr + TUL_XCmd) & 0x20) { /* ----------------------- DATA_IN ----------------------------- */ /* check scsi parity error */ - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - pCurScb->SCB_HaStat = HOST_DO_DU; - } - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */ + if (host->jsstatus0 & TSS_PAR_ERROR) + scb->hastat = HOST_DO_DU; + if (inb(host->addr + TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */ /* tell Hardware scsi xfer has been terminated */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, TUL_RD(pCurHcb->HCS_Base, TUL_XCtrl) | 0x80); + outb(inb(host->addr + TUL_XCtrl) | 0x80, host->addr + TUL_XCtrl); /* wait until DMA xfer not pending */ - while (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND); + while (inb(host->addr + TUL_XStatus) & XPEND) + cpu_relax(); } } else { -/*-------- DATA OUT -----------*/ - if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0) { - if (pCurHcb->HCS_ActTcs->TCS_JS_Period & TSC_WIDE_SCSI) - cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F) << 1; + /*-------- DATA OUT -----------*/ + if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) { + if (host->active_tc->js_period & TSC_WIDE_SCSI) + cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F) << 1; else - cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F); + cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F); } - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT); + if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */ + outb(TAX_X_ABT, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0); + while ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); } - if ((cnt == 1) && (pCurHcb->HCS_Phase == DATA_OUT)) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) { - return (-1); - } + if ((cnt == 1) && (host->phase == DATA_OUT)) { + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; cnt = 0; } else { - if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0) - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } } - if (cnt == 0) { - pCurScb->SCB_BufLen = 0; - return (6); /* Go to state 6 */ + scb->buflen = 0; + return 6; /* After Data */ } /* Update active data pointer */ - xcnt = (long) pCurScb->SCB_BufLen - cnt; /* xcnt== bytes already xferred */ - pCurScb->SCB_BufLen = (U32) cnt; /* cnt == bytes left to be xferred */ - if (pCurScb->SCB_Flags & SCF_SG) { - register SG *sgp; - ULONG i; - - sgp = &pCurScb->SCB_SGList[pCurScb->SCB_SGIdx]; - for (i = pCurScb->SCB_SGIdx; i < pCurScb->SCB_SGMax; sgp++, i++) { - xcnt -= (long) sgp->SG_Len; + xcnt = (long) scb->buflen - cnt; /* xcnt== bytes already xferred */ + scb->buflen = (u32) cnt; /* cnt == bytes left to be xferred */ + if (scb->flags & SCF_SG) { + struct sg_entry *sgp; + unsigned long i; + + sgp = &scb->sglist[scb->sgidx]; + for (i = scb->sgidx; i < scb->sgmax; sgp++, i++) { + xcnt -= (long) sgp->len; if (xcnt < 0) { /* this sgp xfer half done */ - xcnt += (long) sgp->SG_Len; /* xcnt == bytes xferred in this sgp */ - sgp->SG_Ptr += (U32) xcnt; /* new ptr to be xfer */ - sgp->SG_Len -= (U32) xcnt; /* new len to be xfer */ - pCurScb->SCB_BufPtr += ((U32) (i - pCurScb->SCB_SGIdx) << 3); + xcnt += (long) sgp->len; /* xcnt == bytes xferred in this sgp */ + sgp->data += (u32) xcnt; /* new ptr to be xfer */ + sgp->len -= (u32) xcnt; /* new len to be xfer */ + scb->bufptr += ((u32) (i - scb->sgidx) << 3); /* new SG table ptr */ - pCurScb->SCB_SGLen = (BYTE) (pCurScb->SCB_SGMax - i); + scb->sglen = (u8) (scb->sgmax - i); /* new SG table len */ - pCurScb->SCB_SGIdx = (WORD) i; + scb->sgidx = (u16) i; /* for next disc and come in this loop */ - return (4); /* Go to state 4 */ + return 4; /* Go to state 4 */ } /* else (xcnt >= 0 , i.e. this sgp already xferred */ } /* for */ - return (6); /* Go to state 6 */ + return 6; /* Go to state 6 */ } else { - pCurScb->SCB_BufPtr += (U32) xcnt; + scb->bufptr += (u32) xcnt; } - return (4); /* Go to state 4 */ + return 4; /* Go to state 4 */ } -/***************************************************************************/ -/* state after Data phase */ -int tul_state_6(HCS * pCurHcb) +/** + * initio_state_6 - SCSI state machine + * @host: InitIO host we are controlling + * + * State after Data phase + */ + +static int initio_state_6(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; #if DEBUG_STATE printk("-s6-"); #endif for (;;) { - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case STATUS_IN: /* Status phase */ - if ((tul_status_msg(pCurHcb)) == -1) - return (-1); + if ((initio_status_msg(host)) == -1) + return -1; break; case MSG_IN: /* Message in phase */ - pCurScb->SCB_NxtStat = 6; - if ((tul_msgin(pCurHcb)) == -1) - return (-1); + scb->next_state = 6; + if ((initio_msgin(host)) == -1) + return -1; break; case MSG_OUT: /* Message out phase */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); /* msg nop */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; break; case DATA_IN: /* Data in phase */ - return (tul_xpad_in(pCurHcb)); + return initio_xpad_in(host); case DATA_OUT: /* Data out phase */ - return (tul_xpad_out(pCurHcb)); + return initio_xpad_out(host); default: - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } } } -/***************************************************************************/ -int tul_state_7(HCS * pCurHcb) +/** + * initio_state_7 - SCSI state machine + * @host: InitIO host we are controlling + * + */ + +int initio_state_7(struct initio_host * host) { int cnt, i; @@ -1893,1139 +1678,1029 @@ int tul_state_7(HCS * pCurHcb) printk("-s7-"); #endif /* flush SCSI FIFO */ - cnt = TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F; + cnt = inb(host->addr + TUL_SFifoCnt) & 0x1F; if (cnt) { for (i = 0; i < cnt; i++) - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + inb(host->addr + TUL_SFifo); } - switch (pCurHcb->HCS_Phase) { + switch (host->phase) { case DATA_IN: /* Data in phase */ case DATA_OUT: /* Data out phase */ - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); default: - return (6); /* Go to state 6 */ + return 6; /* Go to state 6 */ } } -/***************************************************************************/ -int tul_xfer_data_in(HCS * pCurHcb) +/** + * initio_xfer_data_in - Commence data input + * @host: InitIO host in use + * + * Commence a block of data transfer. The transfer itself will + * be managed by the controller and we will get a completion (or + * failure) interrupt. + */ +static int initio_xfer_data_in(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DOUT) { - return (6); /* wrong direction */ - } - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen); + if ((scb->flags & SCF_DIR) == SCF_DOUT) + return 6; /* wrong direction */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_IN); /* 7/25/95 */ + outl(scb->buflen, host->addr + TUL_SCnt0); + outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd); /* 7/25/95 */ - if (pCurScb->SCB_Flags & SCF_SG) { /* S/G xfer */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_IN); + if (scb->flags & SCF_SG) { /* S/G xfer */ + outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_SG_IN, host->addr + TUL_XCmd); } else { - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_IN); + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_IN, host->addr + TUL_XCmd); } - pCurScb->SCB_NxtStat = 0x5; - return (0); /* return to OS, wait xfer done , let jas_isr come in */ + scb->next_state = 0x5; + return 0; /* return to OS, wait xfer done , let jas_isr come in */ } +/** + * initio_xfer_data_out - Commence data output + * @host: InitIO host in use + * + * Commence a block of data transfer. The transfer itself will + * be managed by the controller and we will get a completion (or + * failure) interrupt. + */ -/***************************************************************************/ -int tul_xfer_data_out(HCS * pCurHcb) +static int initio_xfer_data_out(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DIN) { - return (6); /* wrong direction */ - } - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_OUT); + if ((scb->flags & SCF_DIR) == SCF_DIN) + return 6; /* wrong direction */ - if (pCurScb->SCB_Flags & SCF_SG) { /* S/G xfer */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_OUT); + outl(scb->buflen, host->addr + TUL_SCnt0); + outb(TSC_XF_DMA_OUT, host->addr + TUL_SCmd); + + if (scb->flags & SCF_SG) { /* S/G xfer */ + outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_SG_OUT, host->addr + TUL_XCmd); } else { - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr); - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_OUT); + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_OUT, host->addr + TUL_XCmd); } - pCurScb->SCB_NxtStat = 0x5; - return (0); /* return to OS, wait xfer done , let jas_isr come in */ + scb->next_state = 0x5; + return 0; /* return to OS, wait xfer done , let jas_isr come in */ } - -/***************************************************************************/ -int tul_xpad_in(HCS * pCurHcb) +int initio_xpad_in(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; - if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) { - pCurScb->SCB_HaStat = HOST_DO_DU; /* over run */ - } + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ for (;;) { - if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI) - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2); + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); else - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); + outl(1, host->addr + TUL_SCnt0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + if (host->phase != DATA_IN) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + return 6; } - if (pCurHcb->HCS_Phase != DATA_IN) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - return (6); - } - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + inb(host->addr + TUL_SFifo); } } -int tul_xpad_out(HCS * pCurHcb) +int initio_xpad_out(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; - if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) { - pCurScb->SCB_HaStat = HOST_DO_DU; /* over run */ - } + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ for (;;) { - if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI) - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2); + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); else - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); + outl(1, host->addr + TUL_SCnt0); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); - } - if (pCurHcb->HCS_Phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - return (6); + outb(0, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if ((wait_tulip(host)) == -1) + return -1; + if (host->phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */ + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + return 6; } } } - -/***************************************************************************/ -int tul_status_msg(HCS * pCurHcb) +int initio_status_msg(struct initio_host * host) { /* status & MSG_IN */ - SCB *pCurScb = pCurHcb->HCS_ActScb; - BYTE msg; + struct scsi_ctrl_blk *scb = host->active; + u8 msg; + + outb(TSC_CMD_COMP, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_CMD_COMP); - if ((wait_tulip(pCurHcb)) == -1) { - return (-1); - } /* get status */ - pCurScb->SCB_TaStat = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); + scb->tastat = inb(host->addr + TUL_SFifo); - if (pCurHcb->HCS_Phase == MSG_OUT) { - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY); - } else { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); - } - if (pCurHcb->HCS_Phase == MSG_IN) { - msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) { /* Parity error */ - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + if (host->phase == MSG_OUT) { + if (host->jsstatus0 & TSS_PAR_ERROR) + outb(MSG_PARITY, host->addr + TUL_SFifo); + else + outb(MSG_NOP, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); + } + if (host->phase == MSG_IN) { + msg = inb(host->addr + TUL_SFifo); + if (host->jsstatus0 & TSS_PAR_ERROR) { /* Parity error */ + if ((initio_msgin_accept(host)) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); + outb(MSG_PARITY, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } if (msg == 0) { /* Command complete */ - if ((pCurScb->SCB_TaStat & 0x18) == 0x10) { /* No link support */ - return (tul_bad_seq(pCurHcb)); - } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return tul_wait_done_disc(pCurHcb); + if ((scb->tastat & 0x18) == 0x10) /* No link support */ + return initio_bad_seq(host); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_done_disc(host); } - if ((msg == MSG_LINK_COMP) || (msg == MSG_LINK_FLAG)) { - if ((pCurScb->SCB_TaStat & 0x18) == 0x10) - return (tul_msgin_accept(pCurHcb)); + if (msg == MSG_LINK_COMP || msg == MSG_LINK_FLAG) { + if ((scb->tastat & 0x18) == 0x10) + return initio_msgin_accept(host); } } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } -/***************************************************************************/ /* scsi bus free */ -int int_tul_busfree(HCS * pCurHcb) +int int_initio_busfree(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; + struct scsi_ctrl_blk *scb = host->active; - if (pCurScb != NULL) { - if (pCurScb->SCB_Status & SCB_SELECT) { /* selection timeout */ - tul_unlink_pend_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_SEL_TOUT; - tul_append_done_scb(pCurHcb, pCurScb); + if (scb != NULL) { + if (scb->status & SCB_SELECT) { /* selection timeout */ + initio_unlink_pend_scb(host, scb); + scb->hastat = HOST_SEL_TOUT; + initio_append_done_scb(host, scb); } else { /* Unexpected bus free */ - tul_unlink_busy_scb(pCurHcb, pCurScb); - pCurScb->SCB_HaStat = HOST_BUS_FREE; - tul_append_done_scb(pCurHcb, pCurScb); + initio_unlink_busy_scb(host, scb); + scb->hastat = HOST_BUS_FREE; + initio_append_done_scb(host, scb); } - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; + host->active = NULL; + host->active_tc = NULL; } - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } -/***************************************************************************/ -/* scsi bus reset */ -static int int_tul_scsi_rst(HCS * pCurHcb) +/** + * int_initio_scsi_rst - SCSI reset occurred + * @host: Host seeing the reset + * + * A SCSI bus reset has occurred. Clean up any pending transfer + * the hardware is doing by DMA and then abort all active and + * disconnected commands. The mid layer should sort the rest out + * for us + */ + +static int int_initio_scsi_rst(struct initio_host * host) { - SCB *pCurScb; + struct scsi_ctrl_blk *scb; int i; /* if DMA xfer is pending, abort DMA xfer */ - if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & 0x01) { - TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO); + if (inb(host->addr + TUL_XStatus) & 0x01) { + outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd); /* wait Abort DMA xfer done */ - while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & 0x04) == 0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + while ((inb(host->addr + TUL_Int) & 0x04) == 0) + cpu_relax(); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); } /* Abort all active & disconnected scb */ - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; + host->active = NULL; + host->active_tc = NULL; /* clr sync nego. done flag */ - for (i = 0; i < pCurHcb->HCS_MaxTar; i++) { - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); - } - return (-1); + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; } +/** + * int_initio_scsi_resel - Reselection occured + * @host: InitIO host adapter + * + * A SCSI reselection event has been signalled and the interrupt + * is now being processed. Work out which command block needs attention + * and continue processing that command. + */ -/***************************************************************************/ -/* scsi reselection */ -int int_tul_resel(HCS * pCurHcb) +int int_initio_resel(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; - BYTE tag, msg = 0; - BYTE tar, lun; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; + u8 tag, msg = 0; + u8 tar, lun; - if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) { - if (pCurScb->SCB_Status & SCB_SELECT) { /* if waiting for selection complete */ - pCurScb->SCB_Status &= ~SCB_SELECT; - } - pCurHcb->HCS_ActScb = NULL; + if ((scb = host->active) != NULL) { + /* FIXME: Why check and not just clear ? */ + if (scb->status & SCB_SELECT) /* if waiting for selection complete */ + scb->status &= ~SCB_SELECT; + host->active = NULL; } /* --------- get target id---------------------- */ - tar = TUL_RD(pCurHcb->HCS_Base, TUL_SBusId); + tar = inb(host->addr + TUL_SBusId); /* ------ get LUN from Identify message----------- */ - lun = TUL_RD(pCurHcb->HCS_Base, TUL_SIdent) & 0x0F; + lun = inb(host->addr + TUL_SIdent) & 0x0F; /* 07/22/98 from 0x1F -> 0x0F */ - pCurTcb = &pCurHcb->HCS_Tcs[tar]; - pCurHcb->HCS_ActTcs = pCurTcb; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period); - + active_tc = &host->targets[tar]; + host->active_tc = active_tc; + outb(active_tc->sconfig0, host->addr + TUL_SConfig); + outb(active_tc->js_period, host->addr + TUL_SPeriod); /* ------------- tag queueing ? ------------------- */ - if (pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG) { - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_IN) + if (active_tc->drv_flags & TCF_DRV_EN_TAG) { + if ((initio_msgin_accept(host)) == -1) + return -1; + if (host->phase != MSG_IN) goto no_tag; - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); - msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* Read Tag Message */ + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + msg = inb(host->addr + TUL_SFifo); /* Read Tag Message */ - if ((msg < MSG_STAG) || (msg > MSG_OTAG)) /* Is simple Tag */ + if (msg < MSG_STAG || msg > MSG_OTAG) /* Is simple Tag */ goto no_tag; - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + if (initio_msgin_accept(host) == -1) + return -1; - if (pCurHcb->HCS_Phase != MSG_IN) + if (host->phase != MSG_IN) goto no_tag; - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); - tag = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* Read Tag ID */ - pCurScb = pCurHcb->HCS_Scb + tag; - if ((pCurScb->SCB_Target != tar) || (pCurScb->SCB_Lun != lun)) { - return tul_msgout_abort_tag(pCurHcb); - } - if (pCurScb->SCB_Status != SCB_BUSY) { /* 03/24/95 */ - return tul_msgout_abort_tag(pCurHcb); - } - pCurHcb->HCS_ActScb = pCurScb; - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + tag = inb(host->addr + TUL_SFifo); /* Read Tag ID */ + scb = host->scb + tag; + if (scb->target != tar || scb->lun != lun) { + return initio_msgout_abort_tag(host); + } + if (scb->status != SCB_BUSY) { /* 03/24/95 */ + return initio_msgout_abort_tag(host); + } + host->active = scb; + if ((initio_msgin_accept(host)) == -1) + return -1; } else { /* No tag */ no_tag: - if ((pCurScb = tul_find_busy_scb(pCurHcb, tar | (lun << 8))) == NULL) { - return tul_msgout_abort_targ(pCurHcb); + if ((scb = initio_find_busy_scb(host, tar | (lun << 8))) == NULL) { + return initio_msgout_abort_targ(host); } - pCurHcb->HCS_ActScb = pCurScb; - if (!(pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG)) { - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + host->active = scb; + if (!(active_tc->drv_flags & TCF_DRV_EN_TAG)) { + if ((initio_msgin_accept(host)) == -1) + return -1; } } return 0; } +/** + * int_initio_bad_seq - out of phase + * @host: InitIO host flagging event + * + * We have ended up out of phase somehow. Reset the host controller + * and throw all our toys out of the pram. Let the midlayer clean up + */ -/***************************************************************************/ -static int int_tul_bad_seq(HCS * pCurHcb) +static int int_initio_bad_seq(struct initio_host * host) { /* target wrong phase */ - SCB *pCurScb; + struct scsi_ctrl_blk *scb; int i; - tul_reset_scsi(pCurHcb, 10); + initio_reset_scsi(host, 10); - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); - } - for (i = 0; i < pCurHcb->HCS_MaxTar; i++) { - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } - return (-1); + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; } -/***************************************************************************/ -int tul_msgout_abort_targ(HCS * pCurHcb) +/** + * initio_msgout_abort_targ - abort a tag + * @host: InitIO host + * + * Abort when the target/lun does not match or when our SCB is not + * busy. Used by untagged commands. + */ + +static int initio_msgout_abort_targ(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if (tul_msgin_accept(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + if (initio_msgin_accept(host) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); + outb(MSG_ABORT, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); - return tul_wait_disc(pCurHcb); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgout_abort_tag(HCS * pCurHcb) +/** + * initio_msgout_abort_tag - abort a tag + * @host: InitIO host + * + * Abort when the target/lun does not match or when our SCB is not + * busy. Used for tagged commands. + */ + +static int initio_msgout_abort_tag(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if (tul_msgin_accept(pCurHcb) == -1) - return (-1); - if (pCurHcb->HCS_Phase != MSG_OUT) - return (tul_bad_seq(pCurHcb)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + if (initio_msgin_accept(host) == -1) + return -1; + if (host->phase != MSG_OUT) + return initio_bad_seq(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT_TAG); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); + outb(MSG_ABORT_TAG, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); - return tul_wait_disc(pCurHcb); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgin(HCS * pCurHcb) +/** + * initio_msgin - Message in + * @host: InitIO Host + * + * Process incoming message + */ +static int initio_msgin(struct initio_host * host) { - TCS *pCurTcb; + struct target_control *active_tc; for (;;) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if ((wait_tulip(pCurHcb)) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - switch (TUL_RD(pCurHcb->HCS_Base, TUL_SFifo)) { + switch (inb(host->addr + TUL_SFifo)) { case MSG_DISC: /* Disconnect msg */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - - return tul_wait_disc(pCurHcb); - + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_disc(host); case MSG_SDP: case MSG_RESTORE: case MSG_NOP: - tul_msgin_accept(pCurHcb); + initio_msgin_accept(host); break; - case MSG_REJ: /* Clear ATN first */ - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, - (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7))); - pCurTcb = pCurHcb->HCS_ActTcs; - if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync nego */ - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - } - tul_msgin_accept(pCurHcb); + outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), + host->addr + TUL_SSignal); + active_tc = host->active_tc; + if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) /* do sync nego */ + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), + host->addr + TUL_SSignal); + initio_msgin_accept(host); break; - case MSG_EXTEND: /* extended msg */ - tul_msgin_extend(pCurHcb); + initio_msgin_extend(host); break; - case MSG_IGNOREWIDE: - tul_msgin_accept(pCurHcb); + initio_msgin_accept(host); break; - - /* get */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return -1; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0); /* put pad */ - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* get IGNORE field */ - TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); /* get pad */ - - tul_msgin_accept(pCurHcb); - break; - case MSG_COMP: - { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return tul_wait_done_disc(pCurHcb); - } + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_done_disc(host); default: - tul_msgout_reject(pCurHcb); + initio_msgout_reject(host); break; } - if (pCurHcb->HCS_Phase != MSG_IN) - return (pCurHcb->HCS_Phase); + if (host->phase != MSG_IN) + return host->phase; } /* statement won't reach here */ } - - - -/***************************************************************************/ -int tul_msgout_reject(HCS * pCurHcb) +static int initio_msgout_reject(struct initio_host * host) { + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - - if ((tul_msgin_accept(pCurHcb)) == -1) - return (-1); + if (initio_msgin_accept(host) == -1) + return -1; - if (pCurHcb->HCS_Phase == MSG_OUT) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_REJ); /* Msg reject */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + if (host->phase == MSG_OUT) { + outb(MSG_REJ, host->addr + TUL_SFifo); /* Msg reject */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - return (pCurHcb->HCS_Phase); + return host->phase; } - - -/***************************************************************************/ -int tul_msgout_ide(HCS * pCurHcb) +static int initio_msgout_ide(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_IDE); /* Initiator Detected Error */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_IDE, host->addr + TUL_SFifo); /* Initiator Detected Error */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - -/***************************************************************************/ -int tul_msgin_extend(HCS * pCurHcb) +static int initio_msgin_extend(struct initio_host * host) { - BYTE len, idx; + u8 len, idx; - if (tul_msgin_accept(pCurHcb) != MSG_IN) - return (pCurHcb->HCS_Phase); + if (initio_msgin_accept(host) != MSG_IN) + return host->phase; /* Get extended msg length */ - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return (-1); + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; - len = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - pCurHcb->HCS_Msg[0] = len; + len = inb(host->addr + TUL_SFifo); + host->msg[0] = len; for (idx = 1; len != 0; len--) { - if ((tul_msgin_accept(pCurHcb)) != MSG_IN) - return (pCurHcb->HCS_Phase); - TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN); - if (wait_tulip(pCurHcb) == -1) - return (-1); - pCurHcb->HCS_Msg[idx++] = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo); - } - if (pCurHcb->HCS_Msg[1] == 1) { /* if it's synchronous data transfer request */ - if (pCurHcb->HCS_Msg[0] != 3) /* if length is not right */ - return (tul_msgout_reject(pCurHcb)); - if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */ - pCurHcb->HCS_Msg[3] = 0; + if ((initio_msgin_accept(host)) != MSG_IN) + return host->phase; + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + host->msg[idx++] = inb(host->addr + TUL_SFifo); + } + if (host->msg[1] == 1) { /* if it's synchronous data transfer request */ + u8 r; + if (host->msg[0] != 3) /* if length is not right */ + return initio_msgout_reject(host); + if (host->active_tc->flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */ + host->msg[3] = 0; } else { - if ((tul_msgin_sync(pCurHcb) == 0) && - (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SYNC_DONE)) { - tul_sync_done(pCurHcb); - return (tul_msgin_accept(pCurHcb)); + if (initio_msgin_sync(host) == 0 && + (host->active_tc->flags & TCF_SYNC_DONE)) { + initio_sync_done(host); + return initio_msgin_accept(host); } } - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - if ((tul_msgin_accept(pCurHcb)) != MSG_OUT) - return (pCurHcb->HCS_Phase); + r = inb(host->addr + TUL_SSignal); + outb((r & (TSC_SET_ACK | 7)) | TSC_SET_ATN, + host->addr + TUL_SSignal); + if (initio_msgin_accept(host) != MSG_OUT) + return host->phase; /* sync msg out */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); - tul_sync_done(pCurHcb); + initio_sync_done(host); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[3]); - - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); + outb(1, host->addr + TUL_SFifo); + outb(host->msg[2], host->addr + TUL_SFifo); + outb(host->msg[3], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } - if ((pCurHcb->HCS_Msg[0] != 2) || (pCurHcb->HCS_Msg[1] != 3)) - return (tul_msgout_reject(pCurHcb)); + if (host->msg[0] != 2 || host->msg[1] != 3) + return initio_msgout_reject(host); /* if it's WIDE DATA XFER REQ */ - if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) { - pCurHcb->HCS_Msg[2] = 0; + if (host->active_tc->flags & TCF_NO_WDTR) { + host->msg[2] = 0; } else { - if (pCurHcb->HCS_Msg[2] > 2) /* > 32 bits */ - return (tul_msgout_reject(pCurHcb)); - if (pCurHcb->HCS_Msg[2] == 2) { /* == 32 */ - pCurHcb->HCS_Msg[2] = 1; + if (host->msg[2] > 2) /* > 32 bits */ + return initio_msgout_reject(host); + if (host->msg[2] == 2) { /* == 32 */ + host->msg[2] = 1; } else { - if ((pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) == 0) { - wdtr_done(pCurHcb); - if ((pCurHcb->HCS_ActTcs->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); - return (tul_msgin_accept(pCurHcb)); + if ((host->active_tc->flags & TCF_NO_WDTR) == 0) { + wdtr_done(host); + if ((host->active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + return initio_msgin_accept(host); } } } - TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN)); + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); - if (tul_msgin_accept(pCurHcb) != MSG_OUT) - return (pCurHcb->HCS_Phase); + if (initio_msgin_accept(host) != MSG_OUT) + return host->phase; /* WDTR msg out */ - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - return (wait_tulip(pCurHcb)); + outb(MSG_EXTEND, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); + outb(host->msg[2], host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); } -/***************************************************************************/ -int tul_msgin_sync(HCS * pCurHcb) +static int initio_msgin_sync(struct initio_host * host) { char default_period; - default_period = tul_rate_tbl[pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SCSI_RATE]; - if (pCurHcb->HCS_Msg[3] > MAX_OFFSET) { - pCurHcb->HCS_Msg[3] = MAX_OFFSET; - if (pCurHcb->HCS_Msg[2] < default_period) { - pCurHcb->HCS_Msg[2] = default_period; + default_period = initio_rate_tbl[host->active_tc->flags & TCF_SCSI_RATE]; + if (host->msg[3] > MAX_OFFSET) { + host->msg[3] = MAX_OFFSET; + if (host->msg[2] < default_period) { + host->msg[2] = default_period; return 1; } - if (pCurHcb->HCS_Msg[2] >= 59) { /* Change to async */ - pCurHcb->HCS_Msg[3] = 0; - } + if (host->msg[2] >= 59) /* Change to async */ + host->msg[3] = 0; return 1; } /* offset requests asynchronous transfers ? */ - if (pCurHcb->HCS_Msg[3] == 0) { + if (host->msg[3] == 0) { return 0; } - if (pCurHcb->HCS_Msg[2] < default_period) { - pCurHcb->HCS_Msg[2] = default_period; + if (host->msg[2] < default_period) { + host->msg[2] = default_period; return 1; } - if (pCurHcb->HCS_Msg[2] >= 59) { - pCurHcb->HCS_Msg[3] = 0; + if (host->msg[2] >= 59) { + host->msg[3] = 0; return 1; } return 0; } - -/***************************************************************************/ -int wdtr_done(HCS * pCurHcb) +static int wdtr_done(struct initio_host * host) { - pCurHcb->HCS_ActTcs->TCS_Flags &= ~TCF_SYNC_DONE; - pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_WDTR_DONE; + host->active_tc->flags &= ~TCF_SYNC_DONE; + host->active_tc->flags |= TCF_WDTR_DONE; - pCurHcb->HCS_ActTcs->TCS_JS_Period = 0; - if (pCurHcb->HCS_Msg[2]) { /* if 16 bit */ - pCurHcb->HCS_ActTcs->TCS_JS_Period |= TSC_WIDE_SCSI; - } - pCurHcb->HCS_ActTcs->TCS_SConfig0 &= ~TSC_ALT_PERIOD; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period); + host->active_tc->js_period = 0; + if (host->msg[2]) /* if 16 bit */ + host->active_tc->js_period |= TSC_WIDE_SCSI; + host->active_tc->sconfig0 &= ~TSC_ALT_PERIOD; + outb(host->active_tc->sconfig0, host->addr + TUL_SConfig); + outb(host->active_tc->js_period, host->addr + TUL_SPeriod); return 1; } -/***************************************************************************/ -int tul_sync_done(HCS * pCurHcb) +static int initio_sync_done(struct initio_host * host) { int i; - pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_SYNC_DONE; + host->active_tc->flags |= TCF_SYNC_DONE; - if (pCurHcb->HCS_Msg[3]) { - pCurHcb->HCS_ActTcs->TCS_JS_Period |= pCurHcb->HCS_Msg[3]; + if (host->msg[3]) { + host->active_tc->js_period |= host->msg[3]; for (i = 0; i < 8; i++) { - if (tul_rate_tbl[i] >= pCurHcb->HCS_Msg[2]) /* pick the big one */ + if (initio_rate_tbl[i] >= host->msg[2]) /* pick the big one */ break; } - pCurHcb->HCS_ActTcs->TCS_JS_Period |= (i << 4); - pCurHcb->HCS_ActTcs->TCS_SConfig0 |= TSC_ALT_PERIOD; + host->active_tc->js_period |= (i << 4); + host->active_tc->sconfig0 |= TSC_ALT_PERIOD; } - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0); - TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period); + outb(host->active_tc->sconfig0, host->addr + TUL_SConfig); + outb(host->active_tc->js_period, host->addr + TUL_SPeriod); - return (-1); + return -1; } -int tul_post_scsi_rst(HCS * pCurHcb) +static int initio_post_scsi_rst(struct initio_host * host) { - SCB *pCurScb; - TCS *pCurTcb; + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; int i; - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags = 0; + host->active = NULL; + host->active_tc = NULL; + host->flags = 0; - while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) { - pCurScb->SCB_HaStat = HOST_BAD_PHAS; - tul_append_done_scb(pCurHcb, pCurScb); + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); } /* clear sync done flag */ - pCurTcb = &pCurHcb->HCS_Tcs[0]; - for (i = 0; i < pCurHcb->HCS_MaxTar; pCurTcb++, i++) { - pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + active_tc = &host->targets[0]; + for (i = 0; i < host->max_tar; active_tc++, i++) { + active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); /* Initialize the sync. xfer register values to an asyn xfer */ - pCurTcb->TCS_JS_Period = 0; - pCurTcb->TCS_SConfig0 = pCurHcb->HCS_SConf1; - pCurHcb->HCS_ActTags[0] = 0; /* 07/22/98 */ - pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY; /* 07/22/98 */ + active_tc->js_period = 0; + active_tc->sconfig0 = host->sconf1; + host->act_tags[0] = 0; /* 07/22/98 */ + host->targets[i].flags &= ~TCF_BUSY; /* 07/22/98 */ } /* for */ - return (-1); + return -1; } -/***************************************************************************/ -void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb) { - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x1; - pCurHcb->HCS_ActScb = pCurScb; - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SELATNSTOP); - return; + scb->status |= SCB_SELECT; + scb->next_state = 0x1; + host->active = scb; + host->active_tc = &host->targets[scb->target]; + outb(TSC_SELATNSTOP, host->addr + TUL_SCmd); } -/***************************************************************************/ -void tul_select_atn(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb) { int i; - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x2; + scb->status |= SCB_SELECT; + scb->next_state = 0x2; - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - pCurHcb->HCS_ActScb = pCurScb; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN); - return; + outb(scb->ident, host->addr + TUL_SFifo); + for (i = 0; i < (int) scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + host->active_tc = &host->targets[scb->target]; + host->active = scb; + outb(TSC_SEL_ATN, host->addr + TUL_SCmd); } -/***************************************************************************/ -void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb) +static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb) { int i; - pCurScb->SCB_Status |= SCB_SELECT; - pCurScb->SCB_NxtStat = 0x2; - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg); - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId); - for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++) - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]); - pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target]; - pCurHcb->HCS_ActScb = pCurScb; - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN3); - return; + scb->status |= SCB_SELECT; + scb->next_state = 0x2; + + outb(scb->ident, host->addr + TUL_SFifo); + outb(scb->tagmsg, host->addr + TUL_SFifo); + outb(scb->tagid, host->addr + TUL_SFifo); + for (i = 0; i < scb->cdblen; i++) + outb(scb->cdb[i], host->addr + TUL_SFifo); + host->active_tc = &host->targets[scb->target]; + host->active = scb; + outb(TSC_SEL_ATN3, host->addr + TUL_SCmd); } -/***************************************************************************/ -/* SCSI Bus Device Reset */ -int tul_bus_device_reset(HCS * pCurHcb) +/** + * initio_bus_device_reset - SCSI Bus Device Reset + * @host: InitIO host to reset + * + * Perform a device reset and abort all pending SCBs for the + * victim device + */ +int initio_bus_device_reset(struct initio_host * host) { - SCB *pCurScb = pCurHcb->HCS_ActScb; - TCS *pCurTcb = pCurHcb->HCS_ActTcs; - SCB *pTmpScb, *pPrevScb; - BYTE tar; + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; + struct scsi_ctrl_blk *tmp, *prev; + u8 tar; - if (pCurHcb->HCS_Phase != MSG_OUT) { - return (int_tul_bad_seq(pCurHcb)); /* Unexpected phase */ - } - tul_unlink_pend_scb(pCurHcb, pCurScb); - tul_release_scb(pCurHcb, pCurScb); + if (host->phase != MSG_OUT) + return int_initio_bad_seq(host); /* Unexpected phase */ + + initio_unlink_pend_scb(host, scb); + initio_release_scb(host, scb); - tar = pCurScb->SCB_Target; /* target */ - pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY); + tar = scb->target; /* target */ + active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY); /* clr sync. nego & WDTR flags 07/22/98 */ /* abort all SCB with same target */ - pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy; /* Check Busy queue */ - while (pTmpScb != NULL) { - - if (pTmpScb->SCB_Target == tar) { + prev = tmp = host->first_busy; /* Check Busy queue */ + while (tmp != NULL) { + if (tmp->target == tar) { /* unlink it */ - if (pTmpScb == pCurHcb->HCS_FirstBusy) { - if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL) - pCurHcb->HCS_LastBusy = NULL; + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; } else { - pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb; - if (pTmpScb == pCurHcb->HCS_LastBusy) - pCurHcb->HCS_LastBusy = pPrevScb; + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; } - pTmpScb->SCB_HaStat = HOST_ABORTED; - tul_append_done_scb(pCurHcb, pTmpScb); + tmp->hastat = HOST_ABORTED; + initio_append_done_scb(host, tmp); } /* Previous haven't change */ else { - pPrevScb = pTmpScb; + prev = tmp; } - pTmpScb = pTmpScb->SCB_NxtScb; + tmp = tmp->next; } - - TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_DEVRST); - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT); - - return tul_wait_disc(pCurHcb); + outb(MSG_DEVRST, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return initio_wait_disc(host); } -/***************************************************************************/ -int tul_msgin_accept(HCS * pCurHcb) +static int initio_msgin_accept(struct initio_host * host) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT); - return (wait_tulip(pCurHcb)); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return wait_tulip(host); } -/***************************************************************************/ -int wait_tulip(HCS * pCurHcb) +static int wait_tulip(struct initio_host * host) { - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) + & TSS_INT_PENDING)) + cpu_relax(); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK; - pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1); + host->jsint = inb(host->addr + TUL_SInt); + host->phase = host->jsstatus0 & TSS_PH_MASK; + host->jsstatus1 = inb(host->addr + TUL_SStatus1); - if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) { /* if SCSI bus reset detected */ - return (int_tul_resel(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) { /* if selected/reselected timeout interrupt */ - return (int_tul_busfree(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - if (pCurHcb->HCS_Flags & HCF_EXPECT_DONE_DISC) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb->SCB_HaStat = 0; - tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags &= ~HCF_EXPECT_DONE_DISC; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + if (host->jsint & TSS_RESEL_INT) /* if SCSI bus reset detected */ + return int_initio_resel(host); + if (host->jsint & TSS_SEL_TIMEOUT) /* if selected/reselected timeout interrupt */ + return int_initio_busfree(host); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + if (host->flags & HCF_EXPECT_DONE_DISC) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + initio_unlink_busy_scb(host, host->active); + host->active->hastat = 0; + initio_append_done_scb(host, host->active); + host->active = NULL; + host->active_tc = NULL; + host->flags &= ~HCF_EXPECT_DONE_DISC; + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } - if (pCurHcb->HCS_Flags & HCF_EXPECT_DISC) { - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - pCurHcb->HCS_ActScb = NULL; - pCurHcb->HCS_ActTcs = NULL; - pCurHcb->HCS_Flags &= ~HCF_EXPECT_DISC; - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - return (-1); + if (host->flags & HCF_EXPECT_DISC) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + host->active = NULL; + host->active_tc = NULL; + host->flags &= ~HCF_EXPECT_DISC; + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + return -1; } - return (int_tul_busfree(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) { - return (pCurHcb->HCS_Phase); + return int_initio_busfree(host); } - return (pCurHcb->HCS_Phase); + /* The old code really does the below. Can probably be removed */ + if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) + return host->phase; + return host->phase; } -/***************************************************************************/ -int tul_wait_disc(HCS * pCurHcb) -{ - - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); +static int initio_wait_disc(struct initio_host * host) +{ + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING)) + cpu_relax(); - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); + host->jsint = inb(host->addr + TUL_SInt); - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - pCurHcb->HCS_ActScb = NULL; - return (-1); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + host->active = NULL; + return -1; } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } -/***************************************************************************/ -int tul_wait_done_disc(HCS * pCurHcb) +static int initio_wait_done_disc(struct initio_host * host) { + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) + & TSS_INT_PENDING)) + cpu_relax(); + host->jsint = inb(host->addr + TUL_SInt); - while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) - & TSS_INT_PENDING)); - - pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt); - - - if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) { /* if SCSI bus reset detected */ - return (int_tul_scsi_rst(pCurHcb)); - } - if (pCurHcb->HCS_JSInt & TSS_DISC_INT) { /* BUS disconnection */ - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO); /* Flush SCSI FIFO */ - TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT); - TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT); /* Enable HW reselect */ - tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb); + if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */ + return int_initio_scsi_rst(host); + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */ + outb(TSC_INITDEFAULT, host->addr + TUL_SConfig); + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */ + initio_unlink_busy_scb(host, host->active); - tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb); - pCurHcb->HCS_ActScb = NULL; - return (-1); + initio_append_done_scb(host, host->active); + host->active = NULL; + return -1; } - return (tul_bad_seq(pCurHcb)); + return initio_bad_seq(host); } +/** + * i91u_intr - IRQ handler + * @irqno: IRQ number + * @dev_id: IRQ identifier + * + * Take the relevant locks and then invoke the actual isr processing + * code under the lock. + */ + static irqreturn_t i91u_intr(int irqno, void *dev_id) { struct Scsi_Host *dev = dev_id; unsigned long flags; + int r; spin_lock_irqsave(dev->host_lock, flags); - tul_isr((HCS *)dev->base); + r = initio_isr((struct initio_host *)dev->hostdata); spin_unlock_irqrestore(dev->host_lock, flags); - return IRQ_HANDLED; -} - -static int tul_NewReturnNumberOfAdapters(void) -{ - struct pci_dev *pDev = NULL; /* Start from none */ - int iAdapters = 0; - long dRegValue; - WORD wBIOS; - int i = 0; - - init_i91uAdapter_table(); - - for (i = 0; i < ARRAY_SIZE(i91u_pci_devices); i++) - { - while ((pDev = pci_find_device(i91u_pci_devices[i].vendor, i91u_pci_devices[i].device, pDev)) != NULL) { - if (pci_enable_device(pDev)) - continue; - pci_read_config_dword(pDev, 0x44, (u32 *) & dRegValue); - wBIOS = (UWORD) (dRegValue & 0xFF); - if (((dRegValue & 0xFF00) >> 8) == 0xFF) - dRegValue = 0; - wBIOS = (wBIOS << 8) + ((UWORD) ((dRegValue & 0xFF00) >> 8)); - if (pci_set_dma_mask(pDev, DMA_32BIT_MASK)) { - printk(KERN_WARNING - "i91u: Could not set 32 bit DMA mask\n"); - continue; - } - - if (Addi91u_into_Adapter_table(wBIOS, - (pDev->resource[0].start), - pDev->irq, - pDev->bus->number, - (pDev->devfn >> 3) - ) == 0) - iAdapters++; - } - } - - return (iAdapters); + if (r) + return IRQ_HANDLED; + else + return IRQ_NONE; } -static int i91u_detect(struct scsi_host_template * tpnt) -{ - HCS *pHCB; - struct Scsi_Host *hreg; - unsigned long i; /* 01/14/98 */ - int ok = 0, iAdapters; - ULONG dBiosAdr; - BYTE *pbBiosAdr; - - /* Get total number of adapters in the motherboard */ - iAdapters = tul_NewReturnNumberOfAdapters(); - if (iAdapters == 0) /* If no tulip founded, return */ - return (0); - - tul_num_ch = (iAdapters > tul_num_ch) ? tul_num_ch : iAdapters; - /* Update actually channel number */ - if (tul_tag_enable) { /* 1.01i */ - tul_num_scb = MAX_TARGETS * i91u_MAXQUEUE; - } else { - tul_num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */ - } /* Update actually SCBs per adapter */ - - /* Get total memory needed for HCS */ - i = tul_num_ch * sizeof(HCS); - memset((unsigned char *) &tul_hcs[0], 0, i); /* Initialize tul_hcs 0 */ - /* Get total memory needed for SCB */ - - for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) { - i = tul_num_ch * tul_num_scb * sizeof(SCB); - if ((tul_scb = kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL) - break; - } - if (tul_scb == NULL) { - printk("i91u: SCB memory allocation error\n"); - return (0); - } - memset((unsigned char *) tul_scb, 0, i); - for (i = 0, pHCB = &tul_hcs[0]; /* Get pointer for control block */ - i < tul_num_ch; - i++, pHCB++) { - get_tulipPCIConfig(pHCB, i); - - dBiosAdr = pHCB->HCS_BIOS; - dBiosAdr = (dBiosAdr << 4); - - pbBiosAdr = phys_to_virt(dBiosAdr); - - init_tulip(pHCB, tul_scb + (i * tul_num_scb), tul_num_scb, pbBiosAdr, 10); - request_region(pHCB->HCS_Base, 256, "i91u"); /* Register */ - - pHCB->HCS_Index = i; /* 7/29/98 */ - hreg = scsi_register(tpnt, sizeof(HCS)); - if(hreg == NULL) { - release_region(pHCB->HCS_Base, 256); - return 0; - } - hreg->io_port = pHCB->HCS_Base; - hreg->n_io_port = 0xff; - hreg->can_queue = tul_num_scb; /* 03/05/98 */ - hreg->unique_id = pHCB->HCS_Base; - hreg->max_id = pHCB->HCS_MaxTar; - hreg->max_lun = 32; /* 10/21/97 */ - hreg->irq = pHCB->HCS_Intr; - hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */ - hreg->base = (unsigned long)pHCB; - hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */ - - /* Initial tulip chip */ - ok = request_irq(pHCB->HCS_Intr, i91u_intr, IRQF_DISABLED | IRQF_SHARED, "i91u", hreg); - if (ok < 0) { - printk(KERN_WARNING "i91u: unable to request IRQ %d\n\n", pHCB->HCS_Intr); - return 0; - } - } - - tpnt->this_id = -1; - tpnt->can_queue = 1; - - return 1; -} +/** + * initio_build_scb - Build the mappings and SCB + * @host: InitIO host taking the command + * @cblk: Firmware command block + * @cmnd: SCSI midlayer command block + * + * Translate the abstract SCSI command into a firmware command block + * suitable for feeding to the InitIO host controller. This also requires + * we build the scatter gather lists and ensure they are mapped properly. + */ -static void i91uBuildSCB(HCS * pHCB, SCB * pSCB, struct scsi_cmnd * SCpnt) +static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd) { /* Create corresponding SCB */ - struct scatterlist *pSrbSG; - SG *pSG; /* Pointer to SG list */ - int i; - long TotalLen; + struct scatterlist *sglist; + struct sg_entry *sg; /* Pointer to SG list */ + int i, nseg; + long total_len; dma_addr_t dma_addr; - pSCB->SCB_Post = i91uSCBPost; /* i91u's callback routine */ - pSCB->SCB_Srb = SCpnt; - pSCB->SCB_Opcode = ExecSCSI; - pSCB->SCB_Flags = SCF_POST; /* After SCSI done, call post routine */ - pSCB->SCB_Target = SCpnt->device->id; - pSCB->SCB_Lun = SCpnt->device->lun; - pSCB->SCB_Ident = SCpnt->device->lun | DISC_ALLOW; - - pSCB->SCB_Flags |= SCF_SENSE; /* Turn on auto request sense */ - dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->sense_buffer, - SENSE_SIZE, DMA_FROM_DEVICE); - pSCB->SCB_SensePtr = cpu_to_le32((u32)dma_addr); - pSCB->SCB_SenseLen = cpu_to_le32(SENSE_SIZE); - SCpnt->SCp.ptr = (char *)(unsigned long)dma_addr; + /* Fill in the command headers */ + cblk->post = i91uSCBPost; /* i91u's callback routine */ + cblk->srb = cmnd; + cblk->opcode = ExecSCSI; + cblk->flags = SCF_POST; /* After SCSI done, call post routine */ + cblk->target = cmnd->device->id; + cblk->lun = cmnd->device->lun; + cblk->ident = cmnd->device->lun | DISC_ALLOW; - pSCB->SCB_CDBLen = SCpnt->cmd_len; - pSCB->SCB_HaStat = 0; - pSCB->SCB_TaStat = 0; - memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, SCpnt->cmd_len); + cblk->flags |= SCF_SENSE; /* Turn on auto request sense */ - if (SCpnt->device->tagged_supported) { /* Tag Support */ - pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */ + /* Map the sense buffer into bus memory */ + dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->sense_buffer, + SENSE_SIZE, DMA_FROM_DEVICE); + cblk->senseptr = cpu_to_le32((u32)dma_addr); + cblk->senselen = cpu_to_le32(SENSE_SIZE); + cmnd->SCp.ptr = (char *)(unsigned long)dma_addr; + cblk->cdblen = cmnd->cmd_len; + + /* Clear the returned status */ + cblk->hastat = 0; + cblk->tastat = 0; + /* Command the command */ + memcpy(&cblk->cdb[0], &cmnd->cmnd, cmnd->cmd_len); + + /* Set up tags */ + if (cmnd->device->tagged_supported) { /* Tag Support */ + cblk->tagmsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */ } else { - pSCB->SCB_TagMsg = 0; /* No tag support */ + cblk->tagmsg = 0; /* No tag support */ } + /* todo handle map_sg error */ - if (SCpnt->use_sg) { - dma_addr = dma_map_single(&pHCB->pci_dev->dev, &pSCB->SCB_SGList[0], - sizeof(struct SG_Struc) * TOTAL_SG_ENTRY, + nseg = scsi_dma_map(cmnd); + BUG_ON(nseg < 0); + if (nseg) { + dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0], + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, DMA_BIDIRECTIONAL); - pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr); - SCpnt->SCp.dma_handle = dma_addr; - - pSrbSG = (struct scatterlist *) SCpnt->request_buffer; - pSCB->SCB_SGLen = dma_map_sg(&pHCB->pci_dev->dev, pSrbSG, - SCpnt->use_sg, SCpnt->sc_data_direction); - - pSCB->SCB_Flags |= SCF_SG; /* Turn on SG list flag */ - for (i = 0, TotalLen = 0, pSG = &pSCB->SCB_SGList[0]; /* 1.01g */ - i < pSCB->SCB_SGLen; i++, pSG++, pSrbSG++) { - pSG->SG_Ptr = cpu_to_le32((u32)sg_dma_address(pSrbSG)); - TotalLen += pSG->SG_Len = cpu_to_le32((u32)sg_dma_len(pSrbSG)); + cblk->bufptr = cpu_to_le32((u32)dma_addr); + cmnd->SCp.dma_handle = dma_addr; + + + cblk->flags |= SCF_SG; /* Turn on SG list flag */ + total_len = 0; + sg = &cblk->sglist[0]; + scsi_for_each_sg(cmnd, sglist, cblk->sglen, i) { + sg->data = cpu_to_le32((u32)sg_dma_address(sglist)); + total_len += sg->len = cpu_to_le32((u32)sg_dma_len(sglist)); } - pSCB->SCB_BufLen = (SCpnt->request_bufflen > TotalLen) ? - TotalLen : SCpnt->request_bufflen; - } else if (SCpnt->request_bufflen) { /* Non SG */ - dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->request_buffer, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - SCpnt->SCp.dma_handle = dma_addr; - pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr); - pSCB->SCB_BufLen = cpu_to_le32((u32)SCpnt->request_bufflen); - pSCB->SCB_SGLen = 0; - } else { - pSCB->SCB_BufLen = 0; - pSCB->SCB_SGLen = 0; + cblk->buflen = (scsi_bufflen(cmnd) > total_len) ? + total_len : scsi_bufflen(cmnd); + } else { /* No data transfer required */ + cblk->buflen = 0; + cblk->sglen = 0; } } +/** + * i91u_queuecommand - Queue a new command if possible + * @cmd: SCSI command block from the mid layer + * @done: Completion handler + * + * Attempts to queue a new command with the host adapter. Will return + * zero if successful or indicate a host busy condition if not (which + * will cause the mid layer to call us again later with the command) + */ + static int i91u_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { - HCS *pHCB = (HCS *) cmd->device->host->base; - register SCB *pSCB; + struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata; + struct scsi_ctrl_blk *cmnd; cmd->scsi_done = done; - pSCB = tul_alloc_scb(pHCB); - if (!pSCB) + cmnd = initio_alloc_scb(host); + if (!cmnd) return SCSI_MLQUEUE_HOST_BUSY; - i91uBuildSCB(pHCB, pSCB, cmd); - tul_exec_scb(pHCB, pSCB); + initio_build_scb(host, cmnd, cmd); + initio_exec_scb(host, cmnd); return 0; } -#if 0 /* no new EH yet */ -/* - * Abort a queued command - * (commands that are on the bus can't be aborted easily) - */ -static int i91u_abort(struct scsi_cmnd * SCpnt) -{ - HCS *pHCB; - - pHCB = (HCS *) SCpnt->device->host->base; - return tul_abort_srb(pHCB, SCpnt); -} - -/* - * Reset registers, reset a hanging bus and - * kill active and disconnected commands for target w/o soft reset +/** + * i91u_bus_reset - reset the SCSI bus + * @cmnd: Command block we want to trigger the reset for + * + * Initiate a SCSI bus reset sequence */ -static int i91u_reset(struct scsi_cmnd * SCpnt, unsigned int reset_flags) -{ /* I need Host Control Block Information */ - HCS *pHCB; - - pHCB = (HCS *) SCpnt->device->host->base; - if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET)) - return tul_reset_scsi_bus(pHCB); - else - return tul_device_reset(pHCB, SCpnt, SCpnt->device->id, reset_flags); -} -#endif - -static int i91u_bus_reset(struct scsi_cmnd * SCpnt) +static int i91u_bus_reset(struct scsi_cmnd * cmnd) { - HCS *pHCB; + struct initio_host *host; - pHCB = (HCS *) SCpnt->device->host->base; + host = (struct initio_host *) cmnd->device->host->hostdata; - spin_lock_irq(SCpnt->device->host->host_lock); - tul_reset_scsi(pHCB, 0); - spin_unlock_irq(SCpnt->device->host->host_lock); + spin_lock_irq(cmnd->device->host->host_lock); + initio_reset_scsi(host, 0); + spin_unlock_irq(cmnd->device->host->host_lock); return SUCCESS; } -/* - * Return the "logical geometry" +/** + * i91u_biospararm - return the "logical geometry + * @sdev: SCSI device + * @dev; Matching block device + * @capacity: Sector size of drive + * @info_array: Return space for BIOS geometry + * + * Map the device geometry in a manner compatible with the host + * controller BIOS behaviour. + * + * FIXME: limited to 2^32 sector devices. */ + static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev, sector_t capacity, int *info_array) { - HCS *pHcb; /* Point to Host adapter control block */ - TCS *pTcb; + struct initio_host *host; /* Point to Host adapter control block */ + struct target_control *tc; - pHcb = (HCS *) sdev->host->base; - pTcb = &pHcb->HCS_Tcs[sdev->id]; + host = (struct initio_host *) sdev->host->hostdata; + tc = &host->targets[sdev->id]; - if (pTcb->TCS_DrvHead) { - info_array[0] = pTcb->TCS_DrvHead; - info_array[1] = pTcb->TCS_DrvSector; - info_array[2] = (unsigned long)capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector; + if (tc->heads) { + info_array[0] = tc->heads; + info_array[1] = tc->sectors; + info_array[2] = (unsigned long)capacity / tc->heads / tc->sectors; } else { - if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) { + if (tc->drv_flags & TCF_DRV_255_63) { info_array[0] = 255; info_array[1] = 63; info_array[2] = (unsigned long)capacity / 255 / 63; @@ -3047,7 +2722,16 @@ static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev, return 0; } -static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd) +/** + * i91u_unmap_scb - Unmap a command + * @pci_dev: PCI device the command is for + * @cmnd: The command itself + * + * Unmap any PCI mapping/IOMMU resources allocated when the command + * was mapped originally as part of initio_build_scb + */ + +static void i91u_unmap_scb(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd) { /* auto sense buffer */ if (cmnd->SCp.ptr) { @@ -3058,65 +2742,63 @@ static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd) } /* request buffer */ - if (cmnd->use_sg) { + if (scsi_sg_count(cmnd)) { dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle, - sizeof(struct SG_Struc) * TOTAL_SG_ENTRY, + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, DMA_BIDIRECTIONAL); - dma_unmap_sg(&pci_dev->dev, cmnd->request_buffer, - cmnd->use_sg, - cmnd->sc_data_direction); - } else if (cmnd->request_bufflen) { - dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle, - cmnd->request_bufflen, - cmnd->sc_data_direction); + scsi_dma_unmap(cmnd); } } -/***************************************************************************** - Function name : i91uSCBPost - Description : This is callback routine be called when tulip finish one - SCSI command. - Input : pHCB - Pointer to host adapter control block. - pSCB - Pointer to SCSI control block. - Output : None. - Return : None. -*****************************************************************************/ -static void i91uSCBPost(BYTE * pHcb, BYTE * pScb) -{ - struct scsi_cmnd *pSRB; /* Pointer to SCSI request block */ - HCS *pHCB; - SCB *pSCB; +/** + * i91uSCBPost - SCSI callback + * @host: Pointer to host adapter control block. + * @cmnd: Pointer to SCSI control block. + * + * This is callback routine be called when tulip finish one + * SCSI command. + */ - pHCB = (HCS *) pHcb; - pSCB = (SCB *) pScb; - if ((pSRB = pSCB->SCB_Srb) == 0) { - printk("i91uSCBPost: SRB pointer is empty\n"); +static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem) +{ + struct scsi_cmnd *cmnd; /* Pointer to SCSI request block */ + struct initio_host *host; + struct scsi_ctrl_blk *cblk; - tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ + host = (struct initio_host *) host_mem; + cblk = (struct scsi_ctrl_blk *) cblk_mem; + if ((cmnd = cblk->srb) == NULL) { + printk(KERN_ERR "i91uSCBPost: SRB pointer is empty\n"); + WARN_ON(1); + initio_release_scb(host, cblk); /* Release SCB for current channel */ return; } - switch (pSCB->SCB_HaStat) { + + /* + * Remap the firmware error status into a mid layer one + */ + switch (cblk->hastat) { case 0x0: case 0xa: /* Linked command complete without error and linked normally */ case 0xb: /* Linked command complete without error interrupt generated */ - pSCB->SCB_HaStat = 0; + cblk->hastat = 0; break; case 0x11: /* Selection time out-The initiator selection or target reselection was not complete within the SCSI Time out period */ - pSCB->SCB_HaStat = DID_TIME_OUT; + cblk->hastat = DID_TIME_OUT; break; case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus phase sequence was requested by the target. The host adapter will generate a SCSI Reset Condition, notifying the host with a SCRD interrupt */ - pSCB->SCB_HaStat = DID_RESET; + cblk->hastat = DID_RESET; break; case 0x1a: /* SCB Aborted. 07/21/98 */ - pSCB->SCB_HaStat = DID_ABORT; + cblk->hastat = DID_ABORT; break; case 0x12: /* Data overrun/underrun-The target attempted to transfer more data @@ -3126,49 +2808,196 @@ static void i91uSCBPost(BYTE * pHcb, BYTE * pScb) case 0x16: /* Invalid SCB Operation Code. */ default: - printk("ini9100u: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat); - pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */ + printk("ini9100u: %x %x\n", cblk->hastat, cblk->tastat); + cblk->hastat = DID_ERROR; /* Couldn't find any better */ break; } - pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16); + cmnd->result = cblk->tastat | (cblk->hastat << 16); + WARN_ON(cmnd == NULL); + i91u_unmap_scb(host->pci_dev, cmnd); + cmnd->scsi_done(cmnd); /* Notify system DONE */ + initio_release_scb(host, cblk); /* Release SCB for current channel */ +} + +static struct scsi_host_template initio_template = { + .proc_name = "INI9100U", + .name = "Initio INI-9X00U/UW SCSI device driver", + .queuecommand = i91u_queuecommand, + .eh_bus_reset_handler = i91u_bus_reset, + .bios_param = i91u_biosparam, + .can_queue = MAX_TARGETS * i91u_MAXQUEUE, + .this_id = 1, + .sg_tablesize = SG_ALL, + .cmd_per_lun = 1, + .use_clustering = ENABLE_CLUSTERING, +}; + +static int initio_probe_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct Scsi_Host *shost; + struct initio_host *host; + u32 reg; + u16 bios_seg; + struct scsi_ctrl_blk *scb, *tmp, *prev = NULL /* silence gcc */; + int num_scb, i, error; + + error = pci_enable_device(pdev); + if (error) + return error; + + pci_read_config_dword(pdev, 0x44, (u32 *) & reg); + bios_seg = (u16) (reg & 0xFF); + if (((reg & 0xFF00) >> 8) == 0xFF) + reg = 0; + bios_seg = (bios_seg << 8) + ((u16) ((reg & 0xFF00) >> 8)); + + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { + printk(KERN_WARNING "i91u: Could not set 32 bit DMA mask\n"); + error = -ENODEV; + goto out_disable_device; + } + shost = scsi_host_alloc(&initio_template, sizeof(struct initio_host)); + if (!shost) { + printk(KERN_WARNING "initio: Could not allocate host structure.\n"); + error = -ENOMEM; + goto out_disable_device; + } + host = (struct initio_host *)shost->hostdata; + memset(host, 0, sizeof(struct initio_host)); - if (pSRB == NULL) { - printk("pSRB is NULL\n"); + if (!request_region(host->addr, 256, "i91u")) { + printk(KERN_WARNING "initio: I/O port range 0x%x is busy.\n", host->addr); + error = -ENODEV; + goto out_host_put; } - i91u_unmap_cmnd(pHCB->pci_dev, pSRB); - pSRB->scsi_done(pSRB); /* Notify system DONE */ + if (initio_tag_enable) /* 1.01i */ + num_scb = MAX_TARGETS * i91u_MAXQUEUE; + else + num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */ - tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ -} + for (; num_scb >= MAX_TARGETS + 3; num_scb--) { + i = num_scb * sizeof(struct scsi_ctrl_blk); + if ((scb = kzalloc(i, GFP_DMA)) != NULL) + break; + } + + if (!scb) { + printk(KERN_WARNING "initio: Cannot allocate SCB array.\n"); + error = -ENOMEM; + goto out_release_region; + } -/* - * Release ressources + host->num_scbs = num_scb; + host->scb = scb; + host->next_pending = scb; + host->next_avail = scb; + for (i = 0, tmp = scb; i < num_scb; i++, tmp++) { + tmp->tagid = i; + if (i != 0) + prev->next = tmp; + prev = tmp; + } + prev->next = NULL; + host->scb_end = tmp; + host->first_avail = scb; + host->last_avail = prev; + + initio_init(host, phys_to_virt(bios_seg << 4)); + + host->jsstatus0 = 0; + + shost->io_port = host->addr; + shost->n_io_port = 0xff; + shost->can_queue = num_scb; /* 03/05/98 */ + shost->unique_id = host->addr; + shost->max_id = host->max_tar; + shost->max_lun = 32; /* 10/21/97 */ + shost->irq = pdev->irq; + shost->this_id = host->scsi_id; /* Assign HCS index */ + shost->base = host->addr; + shost->sg_tablesize = TOTAL_SG_ENTRY; + + error = request_irq(pdev->irq, i91u_intr, IRQF_DISABLED|IRQF_SHARED, "i91u", shost); + if (error < 0) { + printk(KERN_WARNING "initio: Unable to request IRQ %d\n", pdev->irq); + goto out_free_scbs; + } + + pci_set_drvdata(pdev, shost); + host->pci_dev = pdev; + + error = scsi_add_host(shost, &pdev->dev); + if (error) + goto out_free_irq; + scsi_scan_host(shost); + return 0; +out_free_irq: + free_irq(pdev->irq, shost); +out_free_scbs: + kfree(host->scb); +out_release_region: + release_region(host->addr, 256); +out_host_put: + scsi_host_put(shost); +out_disable_device: + pci_disable_device(pdev); + return error; +} + +/** + * initio_remove_one - control shutdown + * @pdev: PCI device being released + * + * Release the resources assigned to this adapter after it has + * finished being used. */ -static int i91u_release(struct Scsi_Host *hreg) + +static void initio_remove_one(struct pci_dev *pdev) { - free_irq(hreg->irq, hreg); - release_region(hreg->io_port, 256); - return 0; + struct Scsi_Host *host = pci_get_drvdata(pdev); + struct initio_host *s = (struct initio_host *)host->hostdata; + scsi_remove_host(host); + free_irq(pdev->irq, host); + release_region(s->addr, 256); + scsi_host_put(host); + pci_disable_device(pdev); } -MODULE_LICENSE("Dual BSD/GPL"); - -static struct scsi_host_template driver_template = { - .proc_name = "INI9100U", - .name = i91u_REVID, - .detect = i91u_detect, - .release = i91u_release, - .queuecommand = i91u_queuecommand, -// .abort = i91u_abort, -// .reset = i91u_reset, - .eh_bus_reset_handler = i91u_bus_reset, - .bios_param = i91u_biosparam, - .can_queue = 1, - .this_id = 1, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, + +MODULE_LICENSE("GPL"); + +static struct pci_device_id initio_pci_tbl[] = { + {PCI_VENDOR_ID_INIT, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INIT, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_DOMEX, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {0,} +}; +MODULE_DEVICE_TABLE(pci, initio_pci_tbl); + +static struct pci_driver initio_pci_driver = { + .name = "initio", + .id_table = initio_pci_tbl, + .probe = initio_probe_one, + .remove = __devexit_p(initio_remove_one), }; -#include "scsi_module.c" +static int __init initio_init_driver(void) +{ + return pci_register_driver(&initio_pci_driver); +} + +static void __exit initio_exit_driver(void) +{ + pci_unregister_driver(&initio_pci_driver); +} + +MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver"); +MODULE_AUTHOR("Initio Corporation"); +MODULE_LICENSE("GPL"); + +module_init(initio_init_driver); +module_exit(initio_exit_driver); |