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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/scsi/initio.c | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/scsi/initio.c')
| -rw-r--r-- | drivers/scsi/initio.c | 2965 |
1 files changed, 2965 insertions, 0 deletions
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c new file mode 100644 index 000000000..375261d67 --- /dev/null +++ b/drivers/scsi/initio.c @@ -0,0 +1,2965 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/************************************************************************** + * Initio 9100 device driver for Linux. + * + * Copyright (c) 1994-1998 Initio Corporation + * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl> + * Copyright (c) 2004 Christoph Hellwig <hch@lst.de> + * Copyright (c) 2007 Red Hat + * + ************************************************************************* + * + * DESCRIPTION: + * + * This is the Linux low-level SCSI driver for Initio INI-9X00U/UW SCSI host + * adapters + * + * 08/06/97 hc - v1.01h + * - Support inic-940 and inic-935 + * 09/26/97 hc - v1.01i + * - Make correction from J.W. Schultz suggestion + * 10/13/97 hc - Support reset function + * 10/21/97 hc - v1.01j + * - Support 32 LUN (SCSI 3) + * 01/14/98 hc - v1.01k + * - Fix memory allocation problem + * 03/04/98 hc - v1.01l + * - Fix tape rewind which will hang the system problem + * - 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 initio_init() + * 07/02/98 hc - v1.01n + * - Support 0002134A + * 08/07/98 hc - v1.01o + * - 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 + * should work with Kernel 2.1.118. + * 09/20/98 wh - v1.02a + * - Support Abort command. + * - Handle reset routine. + * 09/21/98 hl - v1.03 + * - remove comments. + * 12/09/98 bv - v1.03a + * - Removed unused code + * 12/13/98 bv - v1.03b + * - Remove cli() locking for kernels >= 2.1.95. This uses + * spinlocks to serialize access to the pSRB_head and + * pSRB_tail members of the HCS structure. + * 09/01/99 bv - v1.03d + * - Fixed a deadlock problem in SMP. + * 21/01/99 bv - v1.03e + * - Add support for the Domex 3192U PCI SCSI + * This is a slightly modified patch by + * Brian Macy <bmacy@sunshinecomputing.com> + * 22/02/99 bv - v1.03f + * - Didn't detect the INIC-950 in 2.0.x correctly. + * Now fixed. + * 05/07/99 bv - v1.03g + * - Changed the assumption that HZ = 100 + * 10/17/03 mc - v1.04 + * - added new DMA API support + * 06/01/04 jmd - v1.04a + * - Re-add reset_bus support + **************************************************************************/ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <linux/spinlock.h> +#include <linux/stat.h> +#include <linux/kernel.h> +#include <linux/proc_fs.h> +#include <linux/string.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/dma-mapping.h> +#include <asm/io.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> + +#include "initio.h" + +#define SENSE_SIZE 14 + +#define i91u_MAXQUEUE 2 +#define i91u_REVID "Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a" + +#ifdef DEBUG_i91u +static unsigned int i91u_debug = DEBUG_DEFAULT; +#endif + +static int initio_tag_enable = 1; + +#ifdef DEBUG_i91u +static int setup_debug = 0; +#endif + +static void i91uSCBPost(u8 * pHcb, u8 * pScb); + +#define DEBUG_INTERRUPT 0 +#define DEBUG_QUEUE 0 +#define DEBUG_STATE 0 +#define INT_DISC 0 + +/*--- 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 u8 i91udftNvRam[64] = +{ + /*----------- header -----------*/ + 0x25, 0xc9, /* Signature */ + 0x40, /* Size */ + 0x01, /* Revision */ + /* -- Host Adapter Structure -- */ + 0x95, /* ModelByte0 */ + 0x00, /* ModelByte1 */ + 0x00, /* ModelInfo */ + 0x01, /* NumOfCh */ + NBC1_DEFAULT, /* BIOSConfig1 */ + 0, /* BIOSConfig2 */ + 0, /* HAConfig1 */ + 0, /* HAConfig2 */ + /* SCSI channel 0 and target Structure */ + 7, /* SCSIid */ + NCC1_DEFAULT, /* SCSIconfig1 */ + 0, /* SCSIconfig2 */ + 0x10, /* NumSCSItarget */ + + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + + /* SCSI channel 1 and target Structure */ + 7, /* SCSIid */ + NCC1_DEFAULT, /* SCSIconfig1 */ + 0, /* SCSIconfig2 */ + 0x10, /* NumSCSItarget */ + + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0}; /* - CheckSum - */ + + +static u8 initio_rate_tbl[8] = /* fast 20 */ +{ + /* nanosecond divide by 4 */ + 12, /* 50ns, 20M */ + 18, /* 75ns, 13.3M */ + 25, /* 100ns, 10M */ + 31, /* 125ns, 8M */ + 37, /* 150ns, 6.6M */ + 43, /* 175ns, 5.7M */ + 50, /* 200ns, 5M */ + 62 /* 250ns, 4M */ +}; + +static void initio_do_pause(unsigned amount) +{ + /* Pause for amount jiffies */ + unsigned long the_time = jiffies + amount; + + while (time_before_eq(jiffies, the_time)) + cpu_relax(); +} + +/*-- forward reference --*/ + +/****************************************************************** + Input: instruction for Serial E2PROM + + EX: se2_rd(0 call se2_instr() to send address and read command + + StartBit OP_Code Address Data + --------- -------- ------------------ ------- + 1 1 , 0 A5,A4,A3,A2,A1,A0 D15-D0 + + +----------------------------------------------------- + | + CS -----+ + +--+ +--+ +--+ +--+ +--+ + ^ | ^ | ^ | ^ | ^ | + | | | | | | | | | | + CLK -------+ +--+ +--+ +--+ +--+ +-- + (leading edge trigger) + + +--1-----1--+ + | SB OP | OP A5 A4 + DI ----+ +--0------------------ + (address and cmd sent to nvram) + + -------------------------------------------+ + | + DO +--- + (data sent from nvram) + + +******************************************************************/ + +/** + * 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; + u8 b; + + 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 */ + else + b = SE2CS; /* -CLK */ + outb(b, base + TUL_NVRAM); + udelay(30); + outb(b | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + instr <<= 1; + } + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); +} + + +/** + * 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) +{ + initio_se2_instr(base, 0x30); /* EWEN */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); +} + + +/** + * 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) +{ + initio_se2_instr(base, 0); /* EWDS */ + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); +} + + +/** + * 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) +{ + u8 instr, rb; + u16 val = 0; + int i; + + instr = (u8) (addr | 0x80); + initio_se2_instr(base, instr); /* READ INSTR */ + + for (i = 15; i >= 0; i--) { + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + + /* sample data after the following edge of clock */ + rb = inb(base + TUL_NVRAM); + rb &= SE2DI; + val += (rb << i); + udelay(30); /* 6/20/95 */ + } + + outb(0, base + TUL_NVRAM); /* no chip select */ + udelay(30); + return val; +} + +/** + * 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) +{ + u8 rb; + u8 instr; + int i; + + instr = (u8) (addr | 0x40); + initio_se2_instr(base, instr); /* WRITE INSTR */ + for (i = 15; i >= 0; i--) { + if (val & 0x8000) + outb(SE2CS | SE2DO, base + TUL_NVRAM); /* -CLK+dataBit 1 */ + else + outb(SE2CS, base + TUL_NVRAM); /* -CLK+dataBit 0 */ + udelay(30); + outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */ + udelay(30); + val <<= 1; + } + outb(SE2CS, base + TUL_NVRAM); /* -CLK */ + udelay(30); + outb(0, base + TUL_NVRAM); /* -CS */ + udelay(30); + + outb(SE2CS, base + TUL_NVRAM); /* +CS */ + udelay(30); + + for (;;) { + 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 */ + } + 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. + */ + +static int initio_se2_rd_all(unsigned long base) +{ + int i; + u16 chksum = 0; + u16 *np; + + i91unvramp = &i91unvram; + np = (u16 *) i91unvramp; + for (i = 0; i < 32; i++) + *np++ = initio_se2_rd(base, i); + + /* Is signature "ini" ok ? */ + if (i91unvramp->NVM_Signature != INI_SIGNATURE) + return -1; + /* Is ckecksum ok ? */ + np = (u16 *) i91unvramp; + for (i = 0; i < 31; i++) + chksum += *np++; + if (i91unvramp->NVM_CheckSum != chksum) + return -1; + return 1; +} + +/** + * 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; + u16 chksum = 0; + u16 *np, *np1; + + i91unvramp = &i91unvram; + /* Calculate checksum first */ + np = (u16 *) i91udftNvRam; + for (i = 0; i < 31; i++) + chksum += *np++; + *np = chksum; + initio_se2_ew_en(base); /* Enable write */ + + np = (u16 *) i91udftNvRam; + np1 = (u16 *) i91unvramp; + for (i = 0; i < 32; i++, np++, np1++) { + if (*np != *np1) + initio_se2_wr(base, i, *np); + } + initio_se2_ew_ds(base); /* Disable write */ +} + +/** + * 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 void initio_read_eeprom(unsigned long base) +{ + u8 gctrl; + + 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 */ + } + /* Disable EEProm programming */ + gctrl = inb(base + TUL_GCTRL); + outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL); +} + +/** + * initio_stop_bm - stop bus master + * @host: InitIO we are stopping + * + * Stop any pending DMA operation, aborting the DMA if necessary + */ + +static void initio_stop_bm(struct initio_host * host) +{ + + 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 ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); + } + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); +} + +/** + * 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 initio_reset_scsi(struct initio_host * host, int seconds) +{ + outb(TSC_RST_BUS, host->addr + TUL_SCtrl0); + + while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT)) + cpu_relax(); + + /* 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 */ + /* FIXME: this is a very long busy wait right now */ + initio_do_pause(seconds * HZ); + + inb(host->addr + TUL_SInt); + return SCSI_RESET_SUCCESS; +} + +/** + * initio_init - set up an InitIO host adapter + * @host: InitIO host adapter + * @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; + u8 *flags; + u8 *heads; + + /* Get E2Prom configuration */ + initio_read_eeprom(host->addr); + if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8) + host->max_tar = 8; + else + host->max_tar = 16; + + host->config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1; + + host->scsi_id = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID; + host->idmask = ~(1 << host->scsi_id); + +#ifdef CHK_PARITY + /* Enable parity error response */ + outb(inb(host->addr + TUL_PCMD) | 0x40, host->addr + TUL_PCMD); +#endif + + /* Mask all the interrupt */ + outb(0x1F, host->addr + TUL_Mask); + + initio_stop_bm(host); + /* --- Initialize the tulip --- */ + outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0); + + /* program HBA's SCSI ID */ + outb(host->scsi_id << 4, host->addr + TUL_SScsiId); + + /* Enable Initiator Mode ,phase latch,alternate sync period mode, + disable SCSI reset */ + if (host->config & HCC_EN_PAR) + host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR); + else + host->sconf1 = (TSC_INITDEFAULT); + outb(host->sconf1, host->addr + TUL_SConfig); + + /* Enable HW reselect */ + outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); + + outb(0, host->addr + TUL_SPeriod); + + /* selection time out = 250 ms */ + outb(153, host->addr + TUL_STimeOut); + + /* 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, + 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 + 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 + 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", + host->addr, host->pci_dev->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); + } + outb(0x17, host->addr + TUL_SCFG1); + outb(0xE9, host->addr + TUL_SIntEnable); +} + +/** + * 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) +{ + 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 %p\n", scb); +#endif + if ((host->first_avail = scb->next) == NULL) + host->last_avail = NULL; + scb->next = NULL; + scb->status = SCB_RENT; + } + spin_unlock_irqrestore(&host->avail_lock, flags); + return scb; +} + +/** + * 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) +{ + unsigned long flags; + +#if DEBUG_QUEUE + printk("Release SCB %p; ", cmnd); +#endif + 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 { + host->first_avail = cmnd; + host->last_avail = cmnd; + } + spin_unlock_irqrestore(&(host->avail_lock), flags); +} + +/***************************************************************************/ +static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) +{ + +#if DEBUG_QUEUE + printk("Append pend SCB %p; ", scbp); +#endif + scbp->status = SCB_PEND; + scbp->next = NULL; + if (host->last_pending != NULL) { + host->last_pending->next = scbp; + host->last_pending = scbp; + } else { + host->first_pending = scbp; + host->last_pending = scbp; + } +} + +/***************************************************************************/ +static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) +{ + +#if DEBUG_QUEUE + printk("Push pend SCB %p; ", scbp); +#endif + scbp->status = SCB_PEND; + if ((scbp->next = host->first_pending) != NULL) { + host->first_pending = scbp; + } else { + host->first_pending = scbp; + host->last_pending = scbp; + } +} + +static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host) +{ + struct scsi_ctrl_blk *first; + + + 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 ((host->act_tags[first->target] >= + host->max_tags[first->target]) | + (host->targets[first->target].flags & TCF_BUSY)) { + first = first->next; + continue; + } + return first; + } + first = first->next; + } + return first; +} + +static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + struct scsi_ctrl_blk *tmp, *prev; + +#if DEBUG_QUEUE + printk("unlink pend SCB %p; ", scb); +#endif + + 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 { + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; + } + tmp->next = NULL; + break; + } + prev = tmp; + tmp = tmp->next; + } +} + +static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) +{ + +#if DEBUG_QUEUE + printk("append busy SCB %p; ", scbp); +#endif + if (scbp->tagmsg) + host->act_tags[scbp->target]++; + else + 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 { + host->first_busy = scbp; + host->last_busy = scbp; + } +} + +/***************************************************************************/ +static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host) +{ + struct scsi_ctrl_blk *tmp; + + + 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 + host->targets[tmp->target].flags &= ~TCF_BUSY; + } +#if DEBUG_QUEUE + printk("Pop busy SCB %p; ", tmp); +#endif + return tmp; +} + +/***************************************************************************/ +static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + struct scsi_ctrl_blk *tmp, *prev; + +#if DEBUG_QUEUE + printk("unlink busy SCB %p; ", scb); +#endif + + 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 { + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; + } + tmp->next = NULL; + if (tmp->tagmsg) + host->act_tags[tmp->target]--; + else + host->targets[tmp->target].flags &= ~TCF_BUSY; + break; + } + prev = tmp; + tmp = tmp->next; + } + return; +} + +struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun) +{ + struct scsi_ctrl_blk *tmp; + u16 scbp_tarlun; + + + tmp = host->first_busy; + while (tmp != NULL) { + scbp_tarlun = (tmp->lun << 8) | (tmp->target); + if (scbp_tarlun == tarlun) { /* Unlink this SCB */ + break; + } + tmp = tmp->next; + } +#if DEBUG_QUEUE + printk("find busy SCB %p; ", tmp); +#endif + return tmp; +} + +static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp) +{ +#if DEBUG_QUEUE + printk("append done SCB %p; ", scbp); +#endif + + scbp->status = SCB_DONE; + scbp->next = NULL; + if (host->last_done != NULL) { + host->last_done->next = scbp; + host->last_done = scbp; + } else { + host->first_done = scbp; + host->last_done = scbp; + } +} + +struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host) +{ + struct scsi_ctrl_blk *tmp; + + 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 %p; ",tmp); +#endif + return tmp; +} + +static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp) +{ + unsigned long flags; + struct scsi_ctrl_blk *tmp, *prev; + + spin_lock_irqsave(&host->semaph_lock, flags); + + if ((host->semaph == 0) && (host->active == NULL)) { + /* disable Jasmin SCSI Int */ + 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; + } + prev = tmp = host->first_pending; /* Check Pend queue */ + while (tmp != NULL) { + /* 07/27/98 */ + if (tmp->srb == srbp) { + if (tmp == host->active) { + spin_unlock_irqrestore(&host->semaph_lock, flags); + return SCSI_ABORT_BUSY; + } else if (tmp == host->first_pending) { + if ((host->first_pending = tmp->next) == NULL) + host->last_pending = NULL; + } else { + prev->next = tmp->next; + if (tmp == host->last_pending) + host->last_pending = prev; + } + 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; + } + prev = tmp; + tmp = tmp->next; + } + + 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 (tmp->tagmsg == 0) { + spin_unlock_irqrestore(&host->semaph_lock, flags); + return SCSI_ABORT_BUSY; + } else { + host->act_tags[tmp->target]--; + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; + } else { + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; + } + tmp->next = NULL; + + + 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; + } + } + prev = tmp; + tmp = tmp->next; + } + spin_unlock_irqrestore(&host->semaph_lock, flags); + return SCSI_ABORT_NOT_RUNNING; +} + +/***************************************************************************/ +static int initio_bad_seq(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb; + + printk("initio_bad_seg c=%d\n", host->index); + + 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); + } + initio_stop_bm(host); + initio_reset_scsi(host, 8); /* 7/29/98 */ + return initio_post_scsi_rst(host); +} + + +/************************************************************************/ +static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + unsigned long flags; + + scb->mode = 0; + + scb->sgidx = 0; + scb->sgmax = scb->sglen; + + spin_lock_irqsave(&host->semaph_lock, flags); + + initio_append_pend_scb(host, scb); /* Append this SCB to Pending queue */ + +/* VVVVV 07/21/98 */ + 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(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; +} + +/***************************************************************************/ +static int initio_isr(struct initio_host * host) +{ + if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) { + if (host->semaph == 1) { + outb(0x1F, host->addr + TUL_Mask); + /* Disable Tulip SCSI Int */ + host->semaph = 0; + + tulip_main(host); + + host->semaph = 1; + outb(0x0F, host->addr + TUL_Mask); + return 1; + } + } + return 0; +} + +static int tulip_main(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb; + + for (;;) { + 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 (!(scb->mode & SCM_RSENS)) { /* not in auto req. sense mode */ + if (scb->tastat == 2) { + + /* clr sync. nego flag */ + + if (scb->flags & SCF_SENSE) { + u8 len; + len = scb->senselen; + if (len == 0) + len = 1; + 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 */ + 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 (scb->tastat == 2) { /* check contition status again after sending + requset sense cmd 0x3 */ + scb->hastat = HOST_BAD_PHAS; + } + scb->tastat = 2; + } + 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 (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING) + continue; + 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 (initio_find_first_pend_scb(host) == NULL) + return 1; /* return to OS, enable interrupt */ + } /* End of for loop */ + /* statement won't reach here */ +} + +static void tulip_scsi(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; + + /* make sure to service interrupt asap */ + 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 (host->jsint & TSS_RESEL_INT) { /* if selected/reselected interrupt */ + if (int_initio_resel(host) == 0) + initio_next_state(host); + return; + } + if (host->jsint & TSS_SEL_TIMEOUT) { + int_initio_busfree(host); + return; + } + if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */ + int_initio_busfree(host); /* unexpected bus free or sel timeout */ + return; + } + if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */ + if (host->active) + initio_next_state(host); + return; + } + } + if (host->active != NULL) + return; + + if ((scb = initio_find_first_pend_scb(host)) == NULL) + return; + + /* program HBA's SCSI ID & target SCSI ID */ + outb((host->scsi_id << 4) | (scb->target & 0x0F), + host->addr + TUL_SScsiId); + if (scb->opcode == ExecSCSI) { + active_tc = &host->targets[scb->target]; + + if (scb->tagmsg) + active_tc->drv_flags |= TCF_DRV_EN_TAG; + else + active_tc->drv_flags &= ~TCF_DRV_EN_TAG; + + 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 ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */ + initio_select_atn_stop(host, scb); + } else { + if (scb->tagmsg) + initio_select_atn3(host, scb); + else + initio_select_atn(host, scb); + } + } + if (scb->flags & SCF_POLL) { + while (wait_tulip(host) != -1) { + if (initio_next_state(host) == -1) + break; + } + } + } 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 (scb->opcode == AbortCmd) { + if (initio_abort_srb(host, scb->srb) != 0) { + initio_unlink_pend_scb(host, scb); + initio_release_scb(host, scb); + } else { + scb->opcode = BusDevRst; + initio_select_atn_stop(host, scb); + scb->next_state = 8; + } + } else { + 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. + */ + +static int initio_next_state(struct initio_host * host) +{ + int next; + + next = host->active->next_state; + for (;;) { + switch (next) { + case 1: + next = initio_state_1(host); + break; + case 2: + next = initio_state_2(host); + break; + case 3: + next = initio_state_3(host); + break; + case 4: + next = initio_state_4(host); + break; + case 5: + next = initio_state_5(host); + break; + case 6: + next = initio_state_6(host); + break; + case 7: + next = initio_state_7(host); + break; + case 8: + return initio_bus_device_reset(host); + default: + return initio_bad_seq(host); + } + if (next <= 0) + return next; + } +} + + +/** + * 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) +{ + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; +#if DEBUG_STATE + printk("-s1-"); +#endif + + /* Move the SCB from pending to busy */ + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); + + outb(active_tc->sconfig0, host->addr + TUL_SConfig ); + /* ATN on */ + 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(EXTENDED_MESSAGE, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); /* Extended msg length */ + outb(EXTENDED_SDTR, 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(EXTENDED_MESSAGE, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* extended msg length */ + outb(EXTENDED_SDTR, 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 + */ + +static int initio_state_2(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; +#if DEBUG_STATE + printk("-s2-"); +#endif + + initio_unlink_pend_scb(host, scb); + initio_append_busy_scb(host, scb); + + outb(active_tc->sconfig0, host->addr + TUL_SConfig); + + 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; +} + +/** + * 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) +{ + 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 (host->phase) { + case CMD_OUT: /* Command out phase */ + 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 */ + scb->next_state = 3; + if (initio_msgin(host) == -1) + return -1; + break; + + case STATUS_IN: /* Status phase */ + if (initio_status_msg(host) == -1) + return -1; + break; + + case MSG_OUT: /* Message out phase */ + if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) { + outb(NOP, host->addr + TUL_SFifo); /* msg nop */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + } else { + active_tc->flags |= TCF_SYNC_DONE; + + outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); /* ext. msg len */ + outb(EXTENDED_SDTR, 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 initio_bad_seq(host); + } + } +} + +/** + * initio_state_4 - SCSI state machine + * @host: InitIO host we are controlling + * + * SCSI state machine. State 4 + */ + +static int initio_state_4(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + +#if DEBUG_STATE + printk("-s4-"); +#endif + if ((scb->flags & SCF_DIR) == SCF_NO_XF) { + return 6; /* Go to state 6 (After data) */ + } + for (;;) { + if (scb->buflen == 0) + return 6; + + switch (host->phase) { + + case STATUS_IN: /* Status phase */ + 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 */ + scb->next_state = 0x4; + if (initio_msgin(host) == -1) + return -1; + break; + + case MSG_OUT: /* Message out phase */ + 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 { + outb(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 initio_xfer_data_in(host); + + case DATA_OUT: /* Data out phase */ + return initio_xfer_data_out(host); + + default: + return initio_bad_seq(host); + } + } +} + + +/** + * 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) +{ + 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 = inl(host->addr + TUL_SCnt0) & 0x0FFFFFF; + + if (inb(host->addr + TUL_XCmd) & 0x20) { + /* ----------------------- DATA_IN ----------------------------- */ + /* check scsi parity error */ + 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 */ + outb(inb(host->addr + TUL_XCtrl) | 0x80, host->addr + TUL_XCtrl); + /* wait until DMA xfer not pending */ + while (inb(host->addr + TUL_XStatus) & XPEND) + cpu_relax(); + } + } else { + /*-------- 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 += (inb(host->addr + TUL_SFifoCnt) & 0x1F); + } + 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 ((inb(host->addr + TUL_Int) & XABT) == 0) + cpu_relax(); + } + 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 ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + } + } + if (cnt == 0) { + scb->buflen = 0; + return 6; /* After Data */ + } + /* Update active data pointer */ + 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->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 */ + scb->sglen = (u8) (scb->sgmax - i); + /* new SG table len */ + scb->sgidx = (u16) i; + /* for next disc and come in this loop */ + return 4; /* Go to state 4 */ + } + /* else (xcnt >= 0 , i.e. this sgp already xferred */ + } /* for */ + return 6; /* Go to state 6 */ + } else { + scb->bufptr += (u32) xcnt; + } + return 4; /* Go to state 4 */ +} + +/** + * 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) +{ + struct scsi_ctrl_blk *scb = host->active; + +#if DEBUG_STATE + printk("-s6-"); +#endif + for (;;) { + switch (host->phase) { + case STATUS_IN: /* Status phase */ + if ((initio_status_msg(host)) == -1) + return -1; + break; + + case MSG_IN: /* Message in phase */ + scb->next_state = 6; + if ((initio_msgin(host)) == -1) + return -1; + break; + + case MSG_OUT: /* Message out phase */ + outb(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 initio_xpad_in(host); + + case DATA_OUT: /* Data out phase */ + return initio_xpad_out(host); + + default: + return initio_bad_seq(host); + } + } +} + +/** + * initio_state_7 - SCSI state machine + * @host: InitIO host we are controlling + * + */ + +static int initio_state_7(struct initio_host * host) +{ + int cnt, i; + +#if DEBUG_STATE + printk("-s7-"); +#endif + /* flush SCSI FIFO */ + cnt = inb(host->addr + TUL_SFifoCnt) & 0x1F; + if (cnt) { + for (i = 0; i < cnt; i++) + inb(host->addr + TUL_SFifo); + } + switch (host->phase) { + case DATA_IN: /* Data in phase */ + case DATA_OUT: /* Data out phase */ + return initio_bad_seq(host); + default: + return 6; /* Go to state 6 */ + } +} + +/** + * 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) +{ + struct scsi_ctrl_blk *scb = host->active; + + if ((scb->flags & SCF_DIR) == SCF_DOUT) + return 6; /* wrong direction */ + + outl(scb->buflen, host->addr + TUL_SCnt0); + outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd); /* 7/25/95 */ + + 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 { + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_IN, host->addr + TUL_XCmd); + } + 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. + */ + +static int initio_xfer_data_out(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + + if ((scb->flags & SCF_DIR) == SCF_DIN) + return 6; /* wrong direction */ + + 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 { + outl(scb->buflen, host->addr + TUL_XCntH); + outl(scb->bufptr, host->addr + TUL_XAddH); + outb(TAX_X_OUT, host->addr + TUL_XCmd); + } + + scb->next_state = 0x5; + return 0; /* return to OS, wait xfer done , let jas_isr come in */ +} + +int initio_xpad_in(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; + + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ + for (;;) { + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); + else + outl(1, host->addr + TUL_SCnt0); + + 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; + } + inb(host->addr + TUL_SFifo); + } +} + +int initio_xpad_out(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; + + if ((scb->flags & SCF_DIR) != SCF_NO_DCHK) + scb->hastat = HOST_DO_DU; /* over run */ + for (;;) { + if (active_tc->js_period & TSC_WIDE_SCSI) + outl(2, host->addr + TUL_SCnt0); + else + outl(1, host->addr + TUL_SCnt0); + + 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 initio_status_msg(struct initio_host * host) +{ /* status & MSG_IN */ + struct scsi_ctrl_blk *scb = host->active; + u8 msg; + + outb(TSC_CMD_COMP, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + + /* get status */ + scb->tastat = inb(host->addr + TUL_SFifo); + + if (host->phase == MSG_OUT) { + if (host->jsstatus0 & TSS_PAR_ERROR) + outb(MSG_PARITY_ERROR, host->addr + TUL_SFifo); + else + outb(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_ERROR, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); + } + if (msg == 0) { /* Command complete */ + + 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 == LINKED_CMD_COMPLETE || + msg == LINKED_FLG_CMD_COMPLETE) { + if ((scb->tastat & 0x18) == 0x10) + return initio_msgin_accept(host); + } + } + return initio_bad_seq(host); +} + + +/* scsi bus free */ +int int_initio_busfree(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb = host->active; + + 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 */ + initio_unlink_busy_scb(host, scb); + scb->hastat = HOST_BUS_FREE; + initio_append_done_scb(host, scb); + } + host->active = NULL; + host->active_tc = NULL; + } + 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; +} + + +/** + * 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) +{ + struct scsi_ctrl_blk *scb; + int i; + + /* if DMA xfer is pending, abort DMA xfer */ + 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 ((inb(host->addr + TUL_Int) & 0x04) == 0) + cpu_relax(); + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + } + /* Abort all active & disconnected scb */ + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); + } + host->active = NULL; + host->active_tc = NULL; + + /* clr sync nego. done flag */ + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; +} + +/** + * int_initio_resel - Reselection occurred + * @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. + */ + +int int_initio_resel(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; + u8 tag, msg = 0; + u8 tar, lun; + + 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 = inb(host->addr + TUL_SBusId); + /* ------ get LUN from Identify message----------- */ + lun = inb(host->addr + TUL_SIdent) & 0x0F; + /* 07/22/98 from 0x1F -> 0x0F */ + 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 (active_tc->drv_flags & TCF_DRV_EN_TAG) { + if ((initio_msgin_accept(host)) == -1) + return -1; + if (host->phase != MSG_IN) + goto no_tag; + 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 < SIMPLE_QUEUE_TAG || msg > ORDERED_QUEUE_TAG) + /* Is simple Tag */ + goto no_tag; + + if (initio_msgin_accept(host) == -1) + return -1; + + if (host->phase != MSG_IN) + goto no_tag; + + 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 ((scb = initio_find_busy_scb(host, tar | (lun << 8))) == NULL) { + return initio_msgout_abort_targ(host); + } + 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_initio_bad_seq(struct initio_host * host) +{ /* target wrong phase */ + struct scsi_ctrl_blk *scb; + int i; + + initio_reset_scsi(host, 10); + + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); + } + for (i = 0; i < host->max_tar; i++) + host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE); + return -1; +} + + +/** + * 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) +{ + + 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); + + outb(ABORT_TASK_SET, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + + return initio_wait_disc(host); +} + +/** + * 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) +{ + + 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); + + outb(ABORT_TASK, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + + return initio_wait_disc(host); + +} + +/** + * initio_msgin - Message in + * @host: InitIO Host + * + * Process incoming message + */ +static int initio_msgin(struct initio_host * host) +{ + struct target_control *active_tc; + + for (;;) { + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + + switch (inb(host->addr + TUL_SFifo)) { + case DISCONNECT: /* Disconnect msg */ + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_disc(host); + case SAVE_POINTERS: + case RESTORE_POINTERS: + case NOP: + initio_msgin_accept(host); + break; + case MESSAGE_REJECT: /* Clear ATN first */ + 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 EXTENDED_MESSAGE: /* extended msg */ + initio_msgin_extend(host); + break; + case IGNORE_WIDE_RESIDUE: + initio_msgin_accept(host); + break; + case COMMAND_COMPLETE: + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return initio_wait_done_disc(host); + default: + initio_msgout_reject(host); + break; + } + if (host->phase != MSG_IN) + return host->phase; + } + /* statement won't reach here */ +} + +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); + + if (initio_msgin_accept(host) == -1) + return -1; + + if (host->phase == MSG_OUT) { + outb(MESSAGE_REJECT, host->addr + TUL_SFifo); /* Msg reject */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); + } + return host->phase; +} + +static int initio_msgout_ide(struct initio_host * host) +{ + outb(INITIATOR_ERROR, host->addr + TUL_SFifo); /* Initiator Detected Error */ + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return wait_tulip(host); +} + +static int initio_msgin_extend(struct initio_host * host) +{ + u8 len, idx; + + if (initio_msgin_accept(host) != MSG_IN) + return host->phase; + + /* Get extended msg length */ + outl(1, host->addr + TUL_SCnt0); + outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd); + if (wait_tulip(host) == -1) + return -1; + + len = inb(host->addr + TUL_SFifo); + host->msg[0] = len; + for (idx = 1; len != 0; len--) { + + 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 (initio_msgin_sync(host) == 0 && + (host->active_tc->flags & TCF_SYNC_DONE)) { + initio_sync_done(host); + return initio_msgin_accept(host); + } + } + + 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 */ + outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); + + initio_sync_done(host); + + outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo); + outb(3, host->addr + TUL_SFifo); + outb(EXTENDED_SDTR, 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 (host->msg[0] != 2 || host->msg[1] != 3) + return initio_msgout_reject(host); + /* if it's WIDE DATA XFER REQ */ + if (host->active_tc->flags & TCF_NO_WDTR) { + host->msg[2] = 0; + } else { + if (host->msg[2] > 2) /* > 32 bits */ + return initio_msgout_reject(host); + if (host->msg[2] == 2) { /* == 32 */ + host->msg[2] = 1; + } else { + 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); + } + } + } + outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal); + + if (initio_msgin_accept(host) != MSG_OUT) + return host->phase; + /* WDTR msg out */ + outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo); + outb(2, host->addr + TUL_SFifo); + outb(EXTENDED_WDTR, 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); +} + +static int initio_msgin_sync(struct initio_host * host) +{ + char 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 (host->msg[2] >= 59) /* Change to async */ + host->msg[3] = 0; + return 1; + } + /* offset requests asynchronous transfers ? */ + if (host->msg[3] == 0) { + return 0; + } + if (host->msg[2] < default_period) { + host->msg[2] = default_period; + return 1; + } + if (host->msg[2] >= 59) { + host->msg[3] = 0; + return 1; + } + return 0; +} + +static int wdtr_done(struct initio_host * host) +{ + host->active_tc->flags &= ~TCF_SYNC_DONE; + host->active_tc->flags |= TCF_WDTR_DONE; + + 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; +} + +static int initio_sync_done(struct initio_host * host) +{ + int i; + + host->active_tc->flags |= TCF_SYNC_DONE; + + if (host->msg[3]) { + host->active_tc->js_period |= host->msg[3]; + for (i = 0; i < 8; i++) { + if (initio_rate_tbl[i] >= host->msg[2]) /* pick the big one */ + break; + } + host->active_tc->js_period |= (i << 4); + 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; +} + + +static int initio_post_scsi_rst(struct initio_host * host) +{ + struct scsi_ctrl_blk *scb; + struct target_control *active_tc; + int i; + + host->active = NULL; + host->active_tc = NULL; + host->flags = 0; + + while ((scb = initio_pop_busy_scb(host)) != NULL) { + scb->hastat = HOST_BAD_PHAS; + initio_append_done_scb(host, scb); + } + /* clear sync done flag */ + 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 */ + 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; +} + +static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + 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); +} + + +static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + int i; + + scb->status |= SCB_SELECT; + scb->next_state = 0x2; + + 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); +} + +static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb) +{ + int i; + + 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); +} + +/** + * 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) +{ + struct scsi_ctrl_blk *scb = host->active; + struct target_control *active_tc = host->active_tc; + struct scsi_ctrl_blk *tmp, *prev; + u8 tar; + + 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 = 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 */ + prev = tmp = host->first_busy; /* Check Busy queue */ + while (tmp != NULL) { + if (tmp->target == tar) { + /* unlink it */ + if (tmp == host->first_busy) { + if ((host->first_busy = tmp->next) == NULL) + host->last_busy = NULL; + } else { + prev->next = tmp->next; + if (tmp == host->last_busy) + host->last_busy = prev; + } + tmp->hastat = HOST_ABORTED; + initio_append_done_scb(host, tmp); + } + /* Previous haven't change */ + else { + prev = tmp; + } + tmp = tmp->next; + } + outb(TARGET_RESET, host->addr + TUL_SFifo); + outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd); + return initio_wait_disc(host); + +} + +static int initio_msgin_accept(struct initio_host * host) +{ + outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd); + return wait_tulip(host); +} + +static int wait_tulip(struct initio_host * host) +{ + + while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) + & TSS_INT_PENDING)) + cpu_relax(); + + host->jsint = inb(host->addr + TUL_SInt); + host->phase = host->jsstatus0 & TSS_PH_MASK; + host->jsstatus1 = inb(host->addr + TUL_SStatus1); + + 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 (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_initio_busfree(host); + } + /* 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; +} + +static int initio_wait_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); + + 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 initio_bad_seq(host); +} + +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); + + 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); + + initio_append_done_scb(host, host->active); + host->active = NULL; + return -1; + } + 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); + r = initio_isr((struct initio_host *)dev->hostdata); + spin_unlock_irqrestore(dev->host_lock, flags); + if (r) + return IRQ_HANDLED; + else + return IRQ_NONE; +} + + +/** + * 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 initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd) +{ /* Create corresponding SCB */ + struct scatterlist *sglist; + struct sg_entry *sg; /* Pointer to SG list */ + int i, nseg; + long total_len; + dma_addr_t 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; + + cblk->flags |= SCF_SENSE; /* Turn on auto request sense */ + + /* 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 = (u32)dma_addr; + cblk->senselen = SENSE_SIZE; + initio_priv(cmnd)->sense_dma_addr = dma_addr; + cblk->cdblen = cmnd->cmd_len; + + /* Clear the returned status */ + cblk->hastat = 0; + cblk->tastat = 0; + /* Command the command */ + memcpy(cblk->cdb, 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 { + cblk->tagmsg = 0; /* No tag support */ + } + + /* todo handle map_sg error */ + nseg = scsi_dma_map(cmnd); + BUG_ON(nseg < 0); + if (nseg) { + dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0], + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, + DMA_BIDIRECTIONAL); + cblk->bufptr = (u32)dma_addr; + initio_priv(cmnd)->sglist_dma_addr = dma_addr; + + cblk->sglen = nseg; + + cblk->flags |= SCF_SG; /* Turn on SG list flag */ + total_len = 0; + sg = &cblk->sglist[0]; + scsi_for_each_sg(cmnd, sglist, cblk->sglen, i) { + sg->data = cpu_to_le32((u32)sg_dma_address(sglist)); + sg->len = cpu_to_le32((u32)sg_dma_len(sglist)); + total_len += sg_dma_len(sglist); + ++sg; + } + + cblk->buflen = (scsi_bufflen(cmnd) > total_len) ? + total_len : scsi_bufflen(cmnd); + } else { /* No data transfer required */ + cblk->buflen = 0; + cblk->sglen = 0; + } +} + +/** + * i91u_queuecommand_lck - Queue a new command if possible + * @cmd: SCSI command block from the mid layer + * + * 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_lck(struct scsi_cmnd *cmd) +{ + struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata; + struct scsi_ctrl_blk *cmnd; + + cmnd = initio_alloc_scb(host); + if (!cmnd) + return SCSI_MLQUEUE_HOST_BUSY; + + initio_build_scb(host, cmnd, cmd); + initio_exec_scb(host, cmnd); + return 0; +} + +static DEF_SCSI_QCMD(i91u_queuecommand) + +/** + * 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_bus_reset(struct scsi_cmnd * cmnd) +{ + struct initio_host *host; + + host = (struct initio_host *) cmnd->device->host->hostdata; + + spin_lock_irq(cmnd->device->host->host_lock); + initio_reset_scsi(host, 0); + spin_unlock_irq(cmnd->device->host->host_lock); + + return SUCCESS; +} + +/** + * i91u_biosparam - 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) +{ + struct initio_host *host; /* Point to Host adapter control block */ + struct target_control *tc; + + host = (struct initio_host *) sdev->host->hostdata; + tc = &host->targets[sdev->id]; + + 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 (tc->drv_flags & TCF_DRV_255_63) { + info_array[0] = 255; + info_array[1] = 63; + info_array[2] = (unsigned long)capacity / 255 / 63; + } else { + info_array[0] = 64; + info_array[1] = 32; + info_array[2] = (unsigned long)capacity >> 11; + } + } + +#if defined(DEBUG_BIOSPARAM) + if (i91u_debug & debug_biosparam) { + printk("bios geometry: head=%d, sec=%d, cyl=%d\n", + info_array[0], info_array[1], info_array[2]); + printk("WARNING: check, if the bios geometry is correct.\n"); + } +#endif + + return 0; +} + +/** + * 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 (initio_priv(cmnd)->sense_dma_addr) { + dma_unmap_single(&pci_dev->dev, + initio_priv(cmnd)->sense_dma_addr, + SENSE_SIZE, DMA_FROM_DEVICE); + initio_priv(cmnd)->sense_dma_addr = 0; + } + + /* request buffer */ + if (scsi_sg_count(cmnd)) { + dma_unmap_single(&pci_dev->dev, + initio_priv(cmnd)->sglist_dma_addr, + sizeof(struct sg_entry) * TOTAL_SG_ENTRY, + DMA_BIDIRECTIONAL); + + scsi_dma_unmap(cmnd); + } +} + +/* + * i91uSCBPost - SCSI callback + * + * This is callback routine be called when tulip finish one + * SCSI command. + */ + +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; + + 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; + } + + /* + * 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 */ + cblk->hastat = 0; + break; + + case 0x11: /* Selection time out-The initiator selection or target + reselection was not complete within the SCSI Time out period */ + 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 */ + cblk->hastat = DID_RESET; + break; + + case 0x1a: /* SCB Aborted. 07/21/98 */ + cblk->hastat = DID_ABORT; + break; + + case 0x12: /* Data overrun/underrun-The target attempted to transfer more data + than was allocated by the Data Length field or the sum of the + Scatter / Gather Data Length fields. */ + case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */ + case 0x16: /* Invalid SCB Operation Code. */ + + default: + printk("ini9100u: %x %x\n", cblk->hastat, cblk->tastat); + cblk->hastat = DID_ERROR; /* Couldn't find any better */ + break; + } + + cmnd->result = cblk->tastat | (cblk->hastat << 16); + i91u_unmap_scb(host->pci_dev, 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_size = sizeof(struct initio_cmd_priv), +}; + +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 (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { + 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)); + host->addr = pci_resource_start(pdev, 0); + host->bios_addr = bios_seg; + + 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; + } + + 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 */ + + for (; num_scb >= MAX_TARGETS + 3; num_scb--) { + i = num_scb * sizeof(struct scsi_ctrl_blk); + scb = kzalloc(i, GFP_KERNEL); + if (scb) + break; + } + + if (!scb) { + printk(KERN_WARNING "initio: Cannot allocate SCB array.\n"); + error = -ENOMEM; + goto out_release_region; + } + + host->pci_dev = pdev; + + host->semaph = 1; + spin_lock_init(&host->semaph_lock); + 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; + spin_lock_init(&host->avail_lock); + + initio_init(host, phys_to_virt(((u32)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_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); + + 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 void initio_remove_one(struct pci_dev *pdev) +{ + 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("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 = initio_remove_one, +}; +module_pci_driver(initio_pci_driver); + +MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver"); +MODULE_AUTHOR("Initio Corporation"); +MODULE_LICENSE("GPL"); |