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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [scsi/] [ini9100u.c] - Rev 1772
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/************************************************************************** * Initio 9100 device driver for Linux. * * Copyright (c) 1994-1998 Initio Corporation * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl> * All rights reserved. * * 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 * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * 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 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. * ************************************************************************* * * 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 tul_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() * 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> * 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. **************************************************************************/ #define CVT_LINUX_VERSION(V,P,S) (V * 65536 + P * 256 + S) #ifndef LINUX_VERSION_CODE #include <linux/version.h> #endif #ifdef MODULE #include <linux/module.h> #endif #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) #include <stdarg.h> #include <asm/io.h> #include <asm/irq.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/ioport.h> #if LINUX_VERSION_CODE <= CVT_LINUX_VERSION(2,1,92) #include <linux/bios32.h> #endif #include <linux/delay.h> #include <linux/sched.h> #include <linux/pci.h> #include <linux/proc_fs.h> #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,23) #include <linux/init.h> #endif #include <linux/blk.h> #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) #include <asm/spinlock.h> #endif #include "sd.h" #include "scsi.h" #include "hosts.h" #include "ini9100u.h" #include <linux/stat.h> #include <linux/malloc.h> #include <linux/config.h> #else #include <linux/kernel.h> #include <linux/head.h> #include <linux/types.h> #include <linux/string.h> #include <linux/ioport.h> #include <linux/sched.h> #include <linux/proc_fs.h> #include <asm/system.h> #include <asm/io.h> #include "../block/blk.h" #include "scsi.h" #include "sd.h" #include "hosts.h" #include <linux/malloc.h> #include "ini9100u.h" #endif #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,93) #ifdef CONFIG_PCI #include <linux/pci.h> #endif #endif #ifdef DEBUG_i91u unsigned int i91u_debug = DEBUG_DEFAULT; #endif #ifdef MODULE Scsi_Host_Template driver_template = INI9100U; #include "scsi_module.c" #endif char *i91uCopyright = "Copyright (C) 1996-98"; char *i91uInitioName = "by Initio Corporation"; char *i91uProductName = "INI-9X00U/UW"; char *i91uVersion = "v1.03f"; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) struct proc_dir_entry proc_scsi_ini9100u = { PROC_SCSI_INI9100U, 7, "INI9100U", S_IFDIR | S_IRUGO | S_IXUGO, 2, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; #endif #define TULSZ(sz) (sizeof(sz) / sizeof(sz[0])) #define TUL_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) )) /* set by i91_setup according to the command line */ static int setup_called = 0; static int tul_num_ch = 4; /* Maximum 4 adapters */ static int tul_num_scb; static int tul_tag_enable = 1; static SCB *tul_scb; #ifdef DEBUG_i91u static int setup_debug = 0; #endif static char *setup_str = (char *) NULL; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr0(int irq, void *dev_id, struct pt_regs *); static void i91u_intr1(int irq, void *dev_id, struct pt_regs *); static void i91u_intr2(int irq, void *dev_id, struct pt_regs *); static void i91u_intr3(int irq, void *dev_id, struct pt_regs *); static void i91u_intr4(int irq, void *dev_id, struct pt_regs *); static void i91u_intr5(int irq, void *dev_id, struct pt_regs *); static void i91u_intr6(int irq, void *dev_id, struct pt_regs *); static void i91u_intr7(int irq, void *dev_id, struct pt_regs *); #else static void i91u_intr0(int irq, struct pt_regs *); static void i91u_intr1(int irq, struct pt_regs *); static void i91u_intr2(int irq, struct pt_regs *); static void i91u_intr3(int irq, struct pt_regs *); static void i91u_intr4(int irq, struct pt_regs *); static void i91u_intr5(int irq, struct pt_regs *); static void i91u_intr6(int irq, struct pt_regs *); static void i91u_intr7(int irq, struct pt_regs *); #endif static void i91u_panic(char *msg); static void i91uSCBPost(BYTE * pHcb, BYTE * pScb); /* ---- EXTERNAL FUNCTIONS ---- */ /* Get total number of adapters */ extern void init_i91uAdapter_table(void); extern int Addi91u_into_Adapter_table(WORD, WORD, BYTE, BYTE, BYTE); extern int tul_ReturnNumberOfAdapters(void); extern void get_tulipPCIConfig(HCS * pHCB, int iChannel_index); extern int init_tulip(HCS * pHCB, SCB * pSCB, int tul_num_scb, BYTE * pbBiosAdr, int reset_time); extern SCB *tul_alloc_scb(HCS * pHCB); extern int tul_abort_srb(HCS * pHCB, Scsi_Cmnd * pSRB); extern void tul_exec_scb(HCS * pHCB, SCB * pSCB); extern void tul_release_scb(HCS * pHCB, SCB * pSCB); extern void tul_stop_bm(HCS * pHCB); extern int tul_reset_scsi(HCS * pCurHcb, int seconds); extern int tul_isr(HCS * pHCB); extern int tul_reset(HCS * pHCB, Scsi_Cmnd * pSRB, unsigned char target); extern int tul_reset_scsi_bus(HCS * pCurHcb); extern int tul_device_reset(HCS * pCurHcb, ULONG pSrb, unsigned int target, unsigned int ResetFlags); /* ---- EXTERNAL VARIABLES ---- */ extern HCS tul_hcs[]; const PCI_ID i91u_pci_devices[] = { { INI_VENDOR_ID, I950_DEVICE_ID }, { INI_VENDOR_ID, I940_DEVICE_ID }, { INI_VENDOR_ID, I935_DEVICE_ID }, { INI_VENDOR_ID, I920_DEVICE_ID }, { DMX_VENDOR_ID, I920_DEVICE_ID }, }; /* * queue services: */ /***************************************************************************** Function name : i91uAppendSRBToQueue Description : This function will push current request into save list Input : pSRB - Pointer to SCSI request block. pHCB - Pointer to host adapter structure Output : None. Return : None. *****************************************************************************/ static void i91uAppendSRBToQueue(HCS * pHCB, Scsi_Cmnd * pSRB) { ULONG flags; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&(pHCB->pSRB_lock), flags); #else save_flags(flags); cli(); #endif pSRB->next = NULL; /* Pointer to next */ if (pHCB->pSRB_head == NULL) pHCB->pSRB_head = pSRB; else pHCB->pSRB_tail->next = pSRB; /* Pointer to next */ pHCB->pSRB_tail = pSRB; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags); #else restore_flags(flags); #endif return; } /***************************************************************************** Function name : i91uPopSRBFromQueue Description : This function will pop current request from save list Input : pHCB - Pointer to host adapter structure Output : None. Return : pSRB - Pointer to SCSI request block. *****************************************************************************/ static Scsi_Cmnd *i91uPopSRBFromQueue(HCS * pHCB) { Scsi_Cmnd *pSRB; ULONG flags; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&(pHCB->pSRB_lock), flags); #else save_flags(flags); cli(); #endif if ((pSRB = pHCB->pSRB_head) != NULL) { pHCB->pSRB_head = pHCB->pSRB_head->next; pSRB->next = NULL; } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&(pHCB->pSRB_lock), flags); #else restore_flags(flags); #endif return (pSRB); } /* called from init/main.c */ void i91u_setup(char *str, int *ints) { if (setup_called) i91u_panic("i91u: i91u_setup called twice.\n"); setup_called = ints[0]; setup_str = str; #ifdef DEBUG_i91u setup_debug = ints[0] >= 1 ? ints[1] : DEBUG_DEFAULT; #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,93) 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 < TULSZ(i91u_pci_devices); i++) { while ((pDev = pci_find_device(i91u_pci_devices[i].vendor_id, i91u_pci_devices[i].device_id, pDev)) != NULL) { 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 (Addi91u_into_Adapter_table(wBIOS, (pDev->base_address[0] & 0xFFFE), pDev->irq, pDev->bus->number, (pDev->devfn >> 3) ) == 0) iAdapters++; } } return (iAdapters); } #else /* <01> */ /***************************************************************************** Function name : tul_ReturnNumberOfAdapters Description : This function will scan PCI bus to get all Orchid card Input : None. Output : None. Return : SUCCESSFUL - Successful scan ohterwise - No drives founded *****************************************************************************/ int tul_ReturnNumberOfAdapters(void) { unsigned int i, iAdapters; unsigned int dRegValue; unsigned short command; WORD wBIOS, wBASE; BYTE bPCIBusNum, bInterrupt, bPCIDeviceNum; iAdapters = 0; /* * PCI-bus probe. */ if (pcibios_present()) { #ifdef MMAPIO unsigned long page_offset, base; #endif int index; unsigned char pci_bus, pci_devfn; bPCIBusNum = 0; bPCIDeviceNum = 0; init_i91uAdapter_table(); for (i = 0; i < TULSZ(i91u_pci_devices); i++) { index = 0; while (!(pcibios_find_device(i91u_pci_devices[i].vendor_id, i91u_pci_devices[i].device_id, index++, &pci_bus, &pci_devfn))) { if (i == 2) { printk("i91u: The RAID controller is not supported by\n"); printk("i91u: this driver, we are ignoring it.\n"); } else { /* * Read sundry information from PCI BIOS. */ bPCIBusNum = pci_bus; bPCIDeviceNum = pci_devfn; pcibios_read_config_dword(pci_bus, pci_devfn, PCI_BASE_ADDRESS_0, &dRegValue); if (dRegValue == -1) { /* Check return code */ printk("\n\ri91u: tulip read configuration error.\n"); return (0); /* Read configuration space error */ } /* <02> read from base address + 0x50 offset to get the wBIOS balue. */ wBASE = (WORD) dRegValue; /* Now read the interrupt line */ pcibios_read_config_dword(pci_bus, pci_devfn, PCI_INTERRUPT_LINE, &dRegValue); bInterrupt = dRegValue & 0xFF; /* Assign interrupt line */ pcibios_read_config_word(pci_bus, pci_devfn, PCI_COMMAND, &command); pcibios_write_config_word(pci_bus, pci_devfn, PCI_COMMAND, command | PCI_COMMAND_MASTER | PCI_COMMAND_IO); wBASE &= PCI_BASE_ADDRESS_IO_MASK; wBIOS = TUL_RDWORD(wBASE, 0x50); #ifdef MMAPIO base = wBASE & PAGE_MASK; page_offset = wBASE - base; /* * replace the next line with this one if you are using 2.1.x: * temp_p->maddr = ioremap(base, page_offset + 256); */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,0) wBASE = ioremap(base, page_offset + 256); #else wBASE = (WORD) vremap(base, page_offset + 256); #endif if (wBASE) { wBASE += page_offset; } #endif if (Addi91u_into_Adapter_table(wBIOS, wBASE, bInterrupt, bPCIBusNum, bPCIDeviceNum) == 0x0) iAdapters++; } } /* while(pdev=....) */ } /* for PCI_DEVICES */ } /* PCI BIOS present */ return (iAdapters); } #endif int i91u_detect(Scsi_Host_Template * tpnt) { SCB *pSCB; HCS *pHCB; struct Scsi_Host *hreg; unsigned long i; /* 01/14/98 */ int ok = 0, iAdapters; ULONG dBiosAdr; BYTE *pbBiosAdr; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) tpnt->proc_dir = &proc_scsi_ini9100u; #endif if (setup_called) { /* Setup by i91u_setup */ printk("i91u: processing commandline: "); #ifdef DEBUG_i91u if (setup_called > 1) { printk("\ni91u: %s\n", setup_str); printk("i91u: usage: i91u[=<DEBUG>]\n"); i91u_panic("i91u panics in line %d", __LINE__); } i91u_debug = setup_debug; #endif } /* Get total number of adapters in the motherboard */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,93) #ifdef CONFIG_PCI iAdapters = tul_NewReturnNumberOfAdapters(); #else iAdapters = tul_ReturnNumberOfAdapters(); #endif #else iAdapters = tul_ReturnNumberOfAdapters(); #endif 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 */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) { i = tul_num_ch * tul_num_scb * sizeof(SCB); if ((tul_scb = (SCB *) kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL) break; } #else i = tul_num_ch * tul_num_scb * sizeof(SCB); tul_scb = (SCB *) scsi_init_malloc(i, GFP_ATOMIC | GFP_DMA); #endif if (tul_scb == NULL) { printk("i91u: SCB memory allocation error\n"); return (0); } memset((unsigned char *) tul_scb, 0, i); pSCB = tul_scb; for (i = 0; i < tul_num_ch * tul_num_scb; i++, pSCB++) { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pSCB->SCB_SGPAddr = (U32) VIRT_TO_BUS(&pSCB->SCB_SGList[0]); #else pSCB->SCB_SGPAddr = (U32) (&pSCB->SCB_SGList[0]); #endif } for (i = 0, pHCB = &tul_hcs[0]; /* Get pointer for control block */ i < tul_num_ch; i++, pHCB++) { pHCB->pSRB_head = NULL; /* Initial SRB save queue */ pHCB->pSRB_tail = NULL; /* Initial SRB save queue */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) pHCB->pSRB_lock = SPIN_LOCK_UNLOCKED; /* SRB save queue lock */ #endif request_region(pHCB->HCS_Base, 0x100, "i91u"); /* Register */ get_tulipPCIConfig(pHCB, i); dBiosAdr = pHCB->HCS_BIOS; dBiosAdr = (dBiosAdr << 4); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pbBiosAdr = phys_to_virt(dBiosAdr); #endif init_tulip(pHCB, tul_scb + (i * tul_num_scb), tul_num_scb, pbBiosAdr, 10); pHCB->HCS_Index = i; /* 7/29/98 */ hreg = scsi_register(tpnt, sizeof(HCS)); hreg->io_port = pHCB->HCS_Base; hreg->n_io_port = 0xff; hreg->can_queue = tul_num_scb; /* 03/05/98 */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) hreg->unique_id = pHCB->HCS_Base; hreg->max_id = pHCB->HCS_MaxTar; #endif hreg->max_lun = 32; /* 10/21/97 */ hreg->irq = pHCB->HCS_Intr; hreg->this_id = pHCB->HCS_SCSI_ID; /* Assign HCS index */ hreg->base = (UCHAR *) pHCB; hreg->sg_tablesize = TOTAL_SG_ENTRY; /* Maximun support is 32 */ /* Initial tulip chip */ switch (i) { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) case 0: ok = request_irq(pHCB->HCS_Intr, i91u_intr0, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 1: ok = request_irq(pHCB->HCS_Intr, i91u_intr1, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 2: ok = request_irq(pHCB->HCS_Intr, i91u_intr2, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 3: ok = request_irq(pHCB->HCS_Intr, i91u_intr3, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 4: ok = request_irq(pHCB->HCS_Intr, i91u_intr4, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 5: ok = request_irq(pHCB->HCS_Intr, i91u_intr5, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 6: ok = request_irq(pHCB->HCS_Intr, i91u_intr6, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; case 7: ok = request_irq(pHCB->HCS_Intr, i91u_intr7, SA_INTERRUPT | SA_SHIRQ, "i91u", NULL); break; default: i91u_panic("i91u: Too many host adapters\n"); break; } if (ok < 0) { if (ok == -EINVAL) { printk("i91u: bad IRQ %d.\n", pHCB->HCS_Intr); printk(" Contact author.\n"); } else if (ok == -EBUSY) printk("i91u: IRQ %d already in use. Configure another.\n", pHCB->HCS_Intr); else { printk("\ni91u: Unexpected error code on requesting IRQ %d.\n", pHCB->HCS_Intr); printk(" Contact author.\n"); } i91u_panic("i91u: driver needs an IRQ.\n"); } #endif } tpnt->this_id = -1; tpnt->can_queue = 1; return 1; } static void i91uBuildSCB(HCS * pHCB, SCB * pSCB, Scsi_Cmnd * SCpnt) { /* Create corresponding SCB */ struct scatterlist *pSrbSG; SG *pSG; /* Pointer to SG list */ int i; long TotalLen; 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->target; pSCB->SCB_Lun = SCpnt->lun; pSCB->SCB_Ident = SCpnt->lun | DISC_ALLOW; pSCB->SCB_Flags |= SCF_SENSE; /* Turn on auto request sense */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pSCB->SCB_SensePtr = (U32) VIRT_TO_BUS(SCpnt->sense_buffer); #else pSCB->SCB_SensePtr = (U32) (SCpnt->sense_buffer); #endif pSCB->SCB_SenseLen = SENSE_SIZE; pSCB->SCB_CDBLen = SCpnt->cmd_len; pSCB->SCB_HaStat = 0; pSCB->SCB_TaStat = 0; memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, SCpnt->cmd_len); if (SCpnt->device->tagged_supported) { /* Tag Support */ pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */ } else { pSCB->SCB_TagMsg = 0; /* No tag support */ } if (SCpnt->use_sg) { pSrbSG = (struct scatterlist *) SCpnt->request_buffer; if (SCpnt->use_sg == 1) { /* If only one entry in the list *//* treat it as regular I/O */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pSCB->SCB_BufPtr = (U32) VIRT_TO_BUS(pSrbSG->address); #else pSCB->SCB_BufPtr = (U32) (pSrbSG->address); #endif TotalLen = pSrbSG->length; pSCB->SCB_SGLen = 0; } else { /* Assign SG physical address */ pSCB->SCB_BufPtr = pSCB->SCB_SGPAddr; pSCB->SCB_Flags |= SCF_SG; /* Turn on SG list flag */ for (i = 0, TotalLen = 0, pSG = &pSCB->SCB_SGList[0]; /* 1.01g */ i < SCpnt->use_sg; i++, pSG++, pSrbSG++) { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pSG->SG_Ptr = (U32) VIRT_TO_BUS(pSrbSG->address); #else pSG->SG_Ptr = (U32) (pSrbSG->address); #endif TotalLen += pSG->SG_Len = pSrbSG->length; } pSCB->SCB_SGLen = i; } pSCB->SCB_BufLen = (SCpnt->request_bufflen > TotalLen) ? TotalLen : SCpnt->request_bufflen; } else { /* Non SG */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) pSCB->SCB_BufPtr = (U32) VIRT_TO_BUS(SCpnt->request_buffer); #else pSCB->SCB_BufPtr = (U32) (SCpnt->request_buffer); #endif pSCB->SCB_BufLen = SCpnt->request_bufflen; pSCB->SCB_SGLen = 0; } return; } /* * Queue a command and setup interrupts for a free bus. */ int i91u_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *)) { register SCB *pSCB; HCS *pHCB; /* Point to Host adapter control block */ if (SCpnt->lun > 16) { /* 07/22/98 */ SCpnt->result = (DID_TIME_OUT << 16); done(SCpnt); /* Notify system DONE */ return (0); } pHCB = (HCS *) SCpnt->host->base; SCpnt->scsi_done = done; /* Get free SCSI control block */ if ((pSCB = tul_alloc_scb(pHCB)) == NULL) { i91uAppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */ return (0); } i91uBuildSCB(pHCB, pSCB, SCpnt); tul_exec_scb(pHCB, pSCB); /* Start execute SCB */ return (0); } /* * We only support command in interrupt-driven fashion */ int i91u_command(Scsi_Cmnd * SCpnt) { printk("i91u: interrupt driven driver; use i91u_queue()\n"); return -1; } /* * Abort a queued command * (commands that are on the bus can't be aborted easily) */ int i91u_abort(Scsi_Cmnd * SCpnt) { HCS *pHCB; pHCB = (HCS *) SCpnt->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 */ int i91u_reset(Scsi_Cmnd * SCpnt, unsigned int reset_flags) { /* I need Host Control Block Information */ HCS *pHCB; pHCB = (HCS *) SCpnt->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, (ULONG) SCpnt, SCpnt->target, reset_flags); } /* * Return the "logical geometry" */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) int i91u_biosparam(Scsi_Disk * disk, kdev_t dev, int *info_array) #else int i91u_biosparam(Scsi_Disk * disk, int dev, int *info_array) #endif { HCS *pHcb; /* Point to Host adapter control block */ TCS *pTcb; pHcb = (HCS *) disk->device->host->base; pTcb = &pHcb->HCS_Tcs[disk->device->id]; if (pTcb->TCS_DrvHead) { info_array[0] = pTcb->TCS_DrvHead; info_array[1] = pTcb->TCS_DrvSector; info_array[2] = disk->capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector; } else { if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) { info_array[0] = 255; info_array[1] = 63; info_array[2] = disk->capacity / 255 / 63; } else { info_array[0] = 64; info_array[1] = 32; info_array[2] = disk->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; } /***************************************************************************** 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) { Scsi_Cmnd *pSRB; /* Pointer to SCSI request block */ HCS *pHCB; SCB *pSCB; pHCB = (HCS *) pHcb; pSCB = (SCB *) pScb; if ((pSRB = pSCB->SCB_Srb) == 0) { printk("i91uSCBPost: SRB pointer is empty\n"); tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ return; } switch (pSCB->SCB_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; 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; 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; break; case 0x1a: /* SCB Aborted. 07/21/98 */ pSCB->SCB_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", pSCB->SCB_HaStat, pSCB->SCB_TaStat); pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */ break; } pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16); if (pSRB == NULL) { printk("pSRB is NULL\n"); } pSRB->scsi_done(pSRB); /* Notify system DONE */ if ((pSRB = i91uPopSRBFromQueue(pHCB)) != NULL) /* Find the next pending SRB */ { /* Assume resend will success */ /* Reuse old SCB */ i91uBuildSCB(pHCB, pSCB, pSRB); /* Create corresponding SCB */ tul_exec_scb(pHCB, pSCB); /* Start execute SCB */ } else { /* No Pending SRB */ tul_release_scb(pHCB, pSCB); /* Release SCB for current channel */ } return; } /* * Interrupts handler (main routine of the driver) */ #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr0(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr0(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[0].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[0]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr1(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr1(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[1].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[1]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr2(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr2(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[2].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[2]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr3(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr3(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[3].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[3]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr4(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr4(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[4].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[4]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr5(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr5(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[5].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[5]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr6(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr6(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[6].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[6]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(1,3,0) static void i91u_intr7(int irqno, void *dev_id, struct pt_regs *regs) #else static void i91u_intr7(int irqno, struct pt_regs *regs) #endif { #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) unsigned long flags; #endif if (tul_hcs[7].HCS_Intr != irqno) return; #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_lock_irqsave(&io_request_lock, flags); #endif tul_isr(&tul_hcs[7]); #if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95) spin_unlock_irqrestore(&io_request_lock, flags); #endif } /* * Dump the current driver status and panic... */ static void i91u_panic(char *msg) { printk("\ni91u_panic: %s\n", msg); panic("i91u panic"); }
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