*
* 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
* 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.
*
*************************************************************************
*
* - 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
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[] = {
#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 */
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 */
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
******************************************************************/
-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;
}
-/***************************************************************************/
-/* 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;
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 */
+ struct scatterlist *sglist;
+ struct sg_entry *sg; /* Pointer to SG list */
int i;
- long TotalLen;
+ 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,
+ if (cmnd->use_sg) {
+ 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));
- }
-
- 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->bufptr = cpu_to_le32((u32)dma_addr);
+ cmnd->SCp.dma_handle = dma_addr;
+
+ sglist = (struct scatterlist *) cmnd->request_buffer;
+ cblk->sglen = dma_map_sg(&host->pci_dev->dev, sglist,
+ cmnd->use_sg, cmnd->sc_data_direction);
+
+ cblk->flags |= SCF_SG; /* Turn on SG list flag */
+ for (i = 0, total_len = 0, sg = &cblk->sglist[0]; /* 1.01g */
+ i < cblk->sglen; i++, sg++, sglist++) {
+ sg->data = cpu_to_le32((u32)sg_dma_address(sglist));
+ total_len += sg->len = cpu_to_le32((u32)sg_dma_len(sglist));
+ }
+
+ cblk->buflen = (cmnd->request_bufflen > total_len) ?
+ total_len : cmnd->request_bufflen;
+ } else if (cmnd->request_bufflen) { /* Non SG */
+ dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->request_buffer,
+ cmnd->request_bufflen,
+ cmnd->sc_data_direction);
+ cmnd->SCp.dma_handle = dma_addr;
+ cblk->bufptr = cpu_to_le32((u32)dma_addr);
+ cblk->buflen = cpu_to_le32((u32)cmnd->request_bufflen);
+ cblk->sglen = 0;
+ } 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;
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) {
/* request buffer */
if (cmnd->use_sg) {
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,
}
}
-/*****************************************************************************
- 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
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);
projects / kernel / kernel-generic.git / commitdiff