The am53c974 is a re-implementation of the tmscsim driver, and provides the same functionality. So remove the tmscsim driver and make am53c974 an alias to tmscsim. Cc: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> Signed-off-by: Hannes Reinecke <hare@xxxxxxx> --- MAINTAINERS | 7 +- drivers/scsi/Kconfig | 16 - drivers/scsi/Makefile | 1 - drivers/scsi/am53c974.c | 1 + drivers/scsi/tmscsim.c | 2626 ----------------------------------------------- drivers/scsi/tmscsim.h | 549 ---------- 6 files changed, 4 insertions(+), 3196 deletions(-) delete mode 100644 drivers/scsi/tmscsim.c delete mode 100644 drivers/scsi/tmscsim.h diff --git a/MAINTAINERS b/MAINTAINERS index d206f37..d780e46 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2862,11 +2862,10 @@ F: Documentation/networking/dmfe.txt F: drivers/net/ethernet/dec/tulip/dmfe.c DC390/AM53C974 SCSI driver -M: Kurt Garloff <garloff@xxxxxxx> -W: http://www.garloff.de/kurt/linux/dc390/ -M: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> +M: Hannes Reinecke <hare@xxxxxxx> +L: linux-scsi@xxxxxxxxxxxxxxx S: Maintained -F: drivers/scsi/tmscsim.* +F: drivers/scsi/am53c974.c DC395x SCSI driver M: Oliver Neukum <oliver@xxxxxxxxxx> diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 519c3ef..f871a80 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1341,22 +1341,6 @@ config SCSI_DC395x To compile this driver as a module, choose M here: the module will be called dc395x. -config SCSI_DC390T - tristate "Tekram DC390(T) and Am53/79C974 SCSI support" - depends on PCI && SCSI - ---help--- - This driver supports PCI SCSI host adapters based on the Am53C974A - chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard - PCscsi/PCnet (Am53/79C974) solutions. - - Documentation can be found in <file:Documentation/scsi/tmscsim.txt>. - - Note that this driver does NOT support Tekram DC390W/U/F, which are - based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those. - - To compile this driver as a module, choose M here: the - module will be called tmscsim. - config SCSI_AM53C974 tristate "Tekram DC390(T) and Am53/79C974 SCSI support (new driver)" depends on PCI && SCSI diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 79a6571..a9f3fa8 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -100,7 +100,6 @@ obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o obj-$(CONFIG_SCSI_7000FASST) += wd7000.o obj-$(CONFIG_SCSI_EATA) += eata.o obj-$(CONFIG_SCSI_DC395x) += dc395x.o -obj-$(CONFIG_SCSI_DC390T) += tmscsim.o obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/ diff --git a/drivers/scsi/am53c974.c b/drivers/scsi/am53c974.c index 55622eb..5ce2bb2 100644 --- a/drivers/scsi/am53c974.c +++ b/drivers/scsi/am53c974.c @@ -572,6 +572,7 @@ MODULE_DESCRIPTION("AM53C974 SCSI driver"); MODULE_AUTHOR("Hannes Reinecke <hare@xxxxxxx>"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_MODULE_VERSION); +MODULE_ALIAS("tmscsim"); module_param(am53c974_fenab, bool, 0444); MODULE_PARM_DESC(am53c974_fenab, "Enable 24-bit DMA transfer sizes"); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c deleted file mode 100644 index 844c9a0..0000000 --- a/drivers/scsi/tmscsim.c +++ /dev/null @@ -1,2626 +0,0 @@ -/************************************************************************ - * FILE NAME : TMSCSIM.C * - * BY : C.L. Huang, ching@xxxxxxxxxxxxx * - * Description: Device Driver for Tekram DC-390(T) PCI SCSI * - * Bus Master Host Adapter * - * (C)Copyright 1995-1996 Tekram Technology Co., Ltd. * - ************************************************************************ - * (C) Copyright: put under GNU GPL in 10/96 * - * (see Documentation/scsi/tmscsim.txt) * - ************************************************************************ - * $Id: tmscsim.c,v 2.60.2.30 2000/12/20 01:07:12 garloff Exp $ * - * Enhancements and bugfixes by * - * Kurt Garloff <kurt@xxxxxxxxxx> <garloff@xxxxxxx> * - ************************************************************************ - * HISTORY: * - * * - * REV# DATE NAME DESCRIPTION * - * 1.00 96/04/24 CLH First release * - * 1.01 96/06/12 CLH Fixed bug of Media Change for Removable * - * Device, scan all LUN. Support Pre2.0.10 * - * 1.02 96/06/18 CLH Fixed bug of Command timeout ... * - * 1.03 96/09/25 KG Added tmscsim_proc_info() * - * 1.04 96/10/11 CLH Updating for support KV 2.0.x * - * 1.05 96/10/18 KG Fixed bug in DC390_abort(null ptr deref)* - * 1.06 96/10/25 KG Fixed module support * - * 1.07 96/11/09 KG Fixed tmscsim_proc_info() * - * 1.08 96/11/18 KG Fixed null ptr in DC390_Disconnect() * - * 1.09 96/11/30 KG Added register the allocated IO space * - * 1.10 96/12/05 CLH Modified tmscsim_proc_info(), and reset * - * pending interrupt in DC390_detect() * - * 1.11 97/02/05 KG/CLH Fixeds problem with partitions greater * - * than 1GB * - * 1.12 98/02/15 MJ Rewritten PCI probing * - * 1.13 98/04/08 KG Support for non DC390, __initfunc decls,* - * changed max devs from 10 to 16 * - * 1.14a 98/05/05 KG Dynamic DCB allocation, add-single-dev * - * for LUNs if LUN_SCAN (BIOS) not set * - * runtime config using /proc interface * - * 1.14b 98/05/06 KG eliminated cli (); sti (); spinlocks * - * 1.14c 98/05/07 KG 2.0.x compatibility * - * 1.20a 98/05/07 KG changed names of funcs to be consistent * - * DC390_ (entry points), dc390_ (internal)* - * reworked locking * - * 1.20b 98/05/12 KG bugs: version, kfree, _ctmp * - * debug output * - * 1.20c 98/05/12 KG bugs: kfree, parsing, EEpromDefaults * - * 1.20d 98/05/14 KG bugs: list linkage, clear flag after * - * reset on startup, code cleanup * - * 1.20e 98/05/15 KG spinlock comments, name space cleanup * - * pLastDCB now part of ACB structure * - * added stats, timeout for 2.1, TagQ bug * - * RESET and INQUIRY interface commands * - * 1.20f 98/05/18 KG spinlocks fixes, max_lun fix, free DCBs * - * for missing LUNs, pending int * - * 1.20g 98/05/19 KG Clean up: Avoid short * - * 1.20h 98/05/21 KG Remove AdaptSCSIID, max_lun ... * - * 1.20i 98/05/21 KG Aiiie: Bug with TagQMask * - * 1.20j 98/05/24 KG Handle STAT_BUSY, handle pACB->pLinkDCB * - * == 0 in remove_dev and DoingSRB_Done * - * 1.20k 98/05/25 KG DMA_INT (experimental) * - * 1.20l 98/05/27 KG remove DMA_INT; DMA_IDLE cmds added; * - * 1.20m 98/06/10 KG glitch configurable; made some global * - * vars part of ACB; use DC390_readX * - * 1.20n 98/06/11 KG startup params * - * 1.20o 98/06/15 KG added TagMaxNum to boot/module params * - * Device Nr -> Idx, TagMaxNum power of 2 * - * 1.20p 98/06/17 KG Docu updates. Reset depends on settings * - * pci_set_master added; 2.0.xx: pcibios_* * - * used instead of MechNum things ... * - * 1.20q 98/06/23 KG Changed defaults. Added debug code for * - * removable media and fixed it. TagMaxNum * - * fixed for DC390. Locking: ACB, DRV for * - * better IRQ sharing. Spelling: Queueing * - * Parsing and glitch_cfg changes. Display * - * real SyncSpeed value. Made DisConn * - * functional (!) * - * 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set * - * BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module * - * param -1 fixed. * - * 1.20s 98/08/20 KG Debug info on abort(), try to check PCI,* - * phys_to_bus instead of phys_to_virt, * - * fixed sel. process, fixed locking, * - * added MODULE_XXX infos, changed IRQ * - * request flags, disable DMA_INT * - * 1.20t 98/09/07 KG TagQ report fixed; Write Erase DMA Stat;* - * initfunc -> __init; better abort; * - * Timeout for XFER_DONE & BLAST_COMPLETE; * - * Allow up to 33 commands being processed * - * 2.0a 98/10/14 KG Max Cmnds back to 17. DMA_Stat clearing * - * all flags. Clear within while() loops * - * in DataIn_0/Out_0. Null ptr in dumpinfo * - * for pSRB==0. Better locking during init.* - * bios_param() now respects part. table. * - * 2.0b 98/10/24 KG Docu fixes. Timeout Msg in DMA Blast. * - * Disallow illegal idx in INQUIRY/REMOVE * - * 2.0c 98/11/19 KG Cleaned up detect/init for SMP boxes, * - * Write Erase DMA (1.20t) caused problems * - * 2.0d 98/12/25 KG Christmas release ;-) Message handling * - * completely reworked. Handle target ini- * - * tiated SDTR correctly. * - * 2.0d1 99/01/25 KG Try to handle RESTORE_PTR * - * 2.0d2 99/02/08 KG Check for failure of kmalloc, correct * - * inclusion of scsicam.h, DelayReset * - * 2.0d3 99/05/31 KG DRIVER_OK -> DID_OK, DID_NO_CONNECT, * - * detect Target mode and warn. * - * pcmd->result handling cleaned up. * - * 2.0d4 99/06/01 KG Cleaned selection process. Found bug * - * which prevented more than 16 tags. Now: * - * 24. SDTR cleanup. Cleaner multi-LUN * - * handling. Don't modify ControlRegs/FIFO * - * when connected. * - * 2.0d5 99/06/01 KG Clear DevID, Fix INQUIRY after cfg chg. * - * 2.0d6 99/06/02 KG Added ADD special command to allow cfg. * - * before detection. Reset SYNC_NEGO_DONE * - * after a bus reset. * - * 2.0d7 99/06/03 KG Fixed bugs wrt add,remove commands * - * 2.0d8 99/06/04 KG Removed copying of cmnd into CmdBlock. * - * Fixed Oops in _release(). * - * 2.0d9 99/06/06 KG Also tag queue INQUIRY, T_U_R, ... * - * Allow arb. no. of Tagged Cmnds. Max 32 * - * 2.0d1099/06/20 KG TagMaxNo changes now honoured! Queueing * - * clearified (renamed ..) TagMask handling* - * cleaned. * - * 2.0d1199/06/28 KG cmd->result now identical to 2.0d2 * - * 2.0d1299/07/04 KG Changed order of processing in IRQ * - * 2.0d1399/07/05 KG Don't update DCB fields if removed * - * 2.0d1499/07/05 KG remove_dev: Move kfree() to the end * - * 2.0d1599/07/12 KG use_new_eh_code: 0, ULONG -> UINT where * - * appropriate * - * 2.0d1699/07/13 KG Reenable StartSCSI interrupt, Retry msg * - * 2.0d1799/07/15 KG Remove debug msg. Disable recfg. when * - * there are queued cmnds * - * 2.0d1899/07/18 KG Selection timeout: Don't requeue * - * 2.0d1999/07/18 KG Abort: Only call scsi_done if dequeued * - * 2.0d2099/07/19 KG Rst_Detect: DoingSRB_Done * - * 2.0d2199/08/15 KG dev_id for request/free_irq, cmnd[0] for* - * RETRY, SRBdone does DID_ABORT for the * - * cmd passed by DC390_reset() * - * 2.0d2299/08/25 KG dev_id fixed. can_queue: 42 * - * 2.0d2399/08/25 KG Removed some debugging code. dev_id * - * now is set to pACB. Use u8,u16,u32. * - * 2.0d2499/11/14 KG Unreg. I/O if failed IRQ alloc. Call * - * done () w/ DID_BAD_TARGET in case of * - * missing DCB. We are old EH!! * - * 2.0d2500/01/15 KG 2.3.3x compat from Andreas Schultz * - * set unique_id. Disable RETRY message. * - * 2.0d2600/01/29 KG Go to new EH. * - * 2.0d2700/01/31 KG ... but maintain 2.0 compat. * - * and fix DCB freeing * - * 2.0d2800/02/14 KG Queue statistics fixed, dump special cmd* - * Waiting_Timer for failed StartSCSI * - * New EH: Don't return cmnds to ML on RST * - * Use old EH (don't have new EH fns yet) * - * Reset: Unlock, but refuse to queue * - * 2.3 __setup function * - * 2.0e 00/05/22 KG Return residual for 2.3 * - * 2.0e1 00/05/25 KG Compile fixes for 2.3.99 * - * 2.0e2 00/05/27 KG Jeff Garzik's pci_enable_device() * - * 2.0e3 00/09/29 KG Some 2.4 changes. Don't try Sync Nego * - * before INQUIRY has reported ability. * - * Recognise INQUIRY as scanning command. * - * 2.0e4 00/10/13 KG Allow compilation into 2.4 kernel * - * 2.0e5 00/11/17 KG Store Inq.flags in DCB * - * 2.0e6 00/11/22 KG 2.4 init function (Thx to O.Schumann) * - * 2.4 PCI device table (Thx to A.Richter) * - * 2.0e7 00/11/28 KG Allow overriding of BIOS settings * - * 2.0f 00/12/20 KG Handle failed INQUIRYs during scan * - * 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to * - * use the current PCI-mapping API, update * - * command-queuing. * - * 2.1b 04/04/13 GL Fix for 64-bit platforms * - * 2.1b1 04/01/31 GL (applied 05.04) Remove internal * - * command-queuing. * - * 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling * - * 2.1c 04/05/23 GL Update to use the new pci_driver API, * - * some scsi EH updates, more cleanup. * - * 2.1d 04/05/27 GL Moved setting of scan_devices to * - * slave_alloc/_configure/_destroy, as * - * suggested by CH. * - ***********************************************************************/ - -/* DEBUG options */ -//#define DC390_DEBUG0 -//#define DC390_DEBUG1 -//#define DC390_DCBDEBUG -//#define DC390_PARSEDEBUG -//#define DC390_REMOVABLEDEBUG -//#define DC390_LOCKDEBUG - -//#define NOP do{}while(0) -#define C_NOP - -/* Debug definitions */ -#ifdef DC390_DEBUG0 -# define DEBUG0(x) x -#else -# define DEBUG0(x) C_NOP -#endif -#ifdef DC390_DEBUG1 -# define DEBUG1(x) x -#else -# define DEBUG1(x) C_NOP -#endif -#ifdef DC390_DCBDEBUG -# define DCBDEBUG(x) x -#else -# define DCBDEBUG(x) C_NOP -#endif -#ifdef DC390_PARSEDEBUG -# define PARSEDEBUG(x) x -#else -# define PARSEDEBUG(x) C_NOP -#endif -#ifdef DC390_REMOVABLEDEBUG -# define REMOVABLEDEBUG(x) x -#else -# define REMOVABLEDEBUG(x) C_NOP -#endif -#define DCBDEBUG1(x) C_NOP - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/signal.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/pci.h> -#include <linux/proc_fs.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/blkdev.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/slab.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/scsicam.h> -#include <scsi/scsi_tcq.h> - -#define DC390_BANNER "Tekram DC390/AM53C974" -#define DC390_VERSION "2.1d 2004-05-27" - -#define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI - -#include "tmscsim.h" - - -static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); -static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); - -static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ); -static void dc390_Disconnect( struct dc390_acb* pACB ); -static void dc390_Reselect( struct dc390_acb* pACB ); -static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ); -static void dc390_ScsiRstDetect( struct dc390_acb* pACB ); -static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*); -static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB); -static void dc390_ResetDevParam(struct dc390_acb* pACB); - -static u32 dc390_laststatus = 0; -static u8 dc390_adapterCnt = 0; - -static int disable_clustering; -module_param(disable_clustering, int, S_IRUGO); -MODULE_PARM_DESC(disable_clustering, "If you experience problems with your devices, try setting to 1"); - -/* Startup values, to be overriden on the commandline */ -static int tmscsim[] = {-2, -2, -2, -2, -2, -2}; - -module_param_array(tmscsim, int, NULL, 0); -MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)"); -MODULE_AUTHOR("C.L. Huang / Kurt Garloff"); -MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); - -static void *dc390_phase0[]={ - dc390_DataOut_0, - dc390_DataIn_0, - dc390_Command_0, - dc390_Status_0, - dc390_Nop_0, - dc390_Nop_0, - dc390_MsgOut_0, - dc390_MsgIn_0, - dc390_Nop_1 - }; - -static void *dc390_phase1[]={ - dc390_DataOutPhase, - dc390_DataInPhase, - dc390_CommandPhase, - dc390_StatusPhase, - dc390_Nop_0, - dc390_Nop_0, - dc390_MsgOutPhase, - dc390_MsgInPhase, - dc390_Nop_1 - }; - -#ifdef DC390_DEBUG1 -static char* dc390_p0_str[] = { - "dc390_DataOut_0", - "dc390_DataIn_0", - "dc390_Command_0", - "dc390_Status_0", - "dc390_Nop_0", - "dc390_Nop_0", - "dc390_MsgOut_0", - "dc390_MsgIn_0", - "dc390_Nop_1" - }; - -static char* dc390_p1_str[] = { - "dc390_DataOutPhase", - "dc390_DataInPhase", - "dc390_CommandPhase", - "dc390_StatusPhase", - "dc390_Nop_0", - "dc390_Nop_0", - "dc390_MsgOutPhase", - "dc390_MsgInPhase", - "dc390_Nop_1" - }; -#endif - -static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN]; -static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20}; -static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20}; - -/*********************************************************************** - * Functions for the management of the internal structures - * (DCBs, SRBs, Queueing) - * - **********************************************************************/ -static void inline dc390_start_segment(struct dc390_srb* pSRB) -{ - struct scatterlist *psgl = pSRB->pSegmentList; - - /* start new sg segment */ - pSRB->SGBusAddr = sg_dma_address(psgl); - pSRB->SGToBeXferLen = sg_dma_len(psgl); -} - -static unsigned long inline dc390_advance_segment(struct dc390_srb* pSRB, u32 residue) -{ - unsigned long xfer = pSRB->SGToBeXferLen - residue; - - /* xfer more bytes transferred */ - pSRB->SGBusAddr += xfer; - pSRB->TotalXferredLen += xfer; - pSRB->SGToBeXferLen = residue; - - return xfer; -} - -static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun) -{ - struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL; - while (pDCB->TargetID != id || pDCB->TargetLUN != lun) - { - pDCB = pDCB->pNextDCB; - if (pDCB == pACB->pLinkDCB) - return NULL; - } - DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \ - pDCB, pDCB->TargetID, pDCB->TargetLUN)); - return pDCB; -} - -/* Insert SRB oin top of free list */ -static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - DEBUG0(printk ("DC390: Free SRB %p\n", pSRB)); - pSRB->pNextSRB = pACB->pFreeSRB; - pACB->pFreeSRB = pSRB; -} - -static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - pDCB->GoingSRBCnt++; - DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB)); - /* Append to the list of Going commands */ - if( pDCB->pGoingSRB ) - pDCB->pGoingLast->pNextSRB = pSRB; - else - pDCB->pGoingSRB = pSRB; - - pDCB->pGoingLast = pSRB; - /* No next one in sent list */ - pSRB->pNextSRB = NULL; -} - -static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB)); - if (pSRB == pDCB->pGoingSRB) - pDCB->pGoingSRB = pSRB->pNextSRB; - else - { - struct dc390_srb* psrb = pDCB->pGoingSRB; - while (psrb && psrb->pNextSRB != pSRB) - psrb = psrb->pNextSRB; - if (!psrb) - { printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; } - psrb->pNextSRB = pSRB->pNextSRB; - if (pSRB == pDCB->pGoingLast) - pDCB->pGoingLast = psrb; - } - pDCB->GoingSRBCnt--; -} - -static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length) -{ - sg_init_one(sg, addr, length); - return sg; -} - -/* Create pci mapping */ -static int dc390_pci_map (struct dc390_srb* pSRB) -{ - int error = 0; - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; - dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)); - - /* Map sense buffer */ - if (pSRB->SRBFlag & AUTO_REQSENSE) { - pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, SCSI_SENSE_BUFFERSIZE); - pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, - DMA_FROM_DEVICE); - cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); - - /* TODO: error handling */ - if (pSRB->SGcount != 1) - error = 1; - DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle)); - /* Map SG list */ - } else if (scsi_sg_count(pcmd)) { - int nseg; - - nseg = scsi_dma_map(pcmd); - - pSRB->pSegmentList = scsi_sglist(pcmd); - pSRB->SGcount = nseg; - - /* TODO: error handling */ - if (nseg < 0) - error = 1; - DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ - __func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd))); - /* Map single segment */ - } else - pSRB->SGcount = 0; - - return error; -} - -/* Remove pci mapping */ -static void dc390_pci_unmap (struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; - DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp))); - - if (pSRB->SRBFlag) { - pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); - DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle)); - } else { - scsi_dma_unmap(pcmd); - DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", - __func__, scsi_sglist(pcmd), scsi_sg_count(pcmd))); - } -} - -static void __inline__ -dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - if (pSRB->TagNumber != SCSI_NO_TAG) { - pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */ - pSRB->TagNumber = SCSI_NO_TAG; - } -} - - -static int -dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) -{ - struct scsi_cmnd *scmd = pSRB->pcmd; - struct scsi_device *sdev = scmd->device; - u8 cmd, disc_allowed, try_sync_nego; - - pSRB->ScsiPhase = SCSI_NOP0; - - if (pACB->Connected) - { - // Should not happen normally - printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n", - pSRB->SRBState, pSRB->SRBFlag); - pSRB->SRBState = SRB_READY; - pACB->SelConn++; - return 1; - } - if (time_before (jiffies, pACB->last_reset)) - { - DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n")); - return 1; - } - /* KG: Moved pci mapping here */ - dc390_pci_map(pSRB); - /* TODO: error handling */ - DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg1, pDCB->CtrlR1); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */ - DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\ - scmd->cmnd[0], pDCB->SyncMode)); - - /* Don't disconnect on AUTO_REQSENSE, cause it might be an - * Contingent Allegiance Condition (6.6), where no tags should be used. - * All other have to be allowed to disconnect to prevent Incorrect - * Initiator Connection (6.8.2/6.5.2) */ - /* Changed KG, 99/06/06 */ - if (! (pSRB->SRBFlag & AUTO_REQSENSE)) - disc_allowed = pDCB->DevMode & EN_DISCONNECT_; - else - disc_allowed = 0; - - if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr && - (((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) && - !(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY)) - try_sync_nego = 1; - else - try_sync_nego = 0; - - pSRB->MsgCnt = 0; - cmd = SEL_W_ATN; - DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); - /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ - if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && (scmd->flags & SCMD_TAGGED)) { - DC390_write8(ScsiFifo, MSG_SIMPLE_TAG); - pDCB->TagMask |= 1 << scmd->request->tag; - pSRB->TagNumber = scmd->request->tag; - DC390_write8(ScsiFifo, scmd->request->tag); - DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1])); - cmd = SEL_W_ATN3; - } else { - /* No TagQ */ -//no_tag: - DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for SRB %p, No TagQ\n", disc_allowed ? "" : "o", pSRB)); - } - - pSRB->SRBState = SRB_START_; - - if (try_sync_nego) - { - u8 Sync_Off = pDCB->SyncOffset; - DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN)); - pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE; - pSRB->MsgOutBuf[1] = 3; - pSRB->MsgOutBuf[2] = EXTENDED_SDTR; - pSRB->MsgOutBuf[3] = pDCB->NegoPeriod; - if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET; - pSRB->MsgOutBuf[4] = Sync_Off; - pSRB->MsgCnt = 5; - //pSRB->SRBState = SRB_MSGOUT_; - pSRB->SRBState |= DO_SYNC_NEGO; - cmd = SEL_W_ATN_STOP; - } - - /* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */ - if (cmd != SEL_W_ATN_STOP) - { - if( pSRB->SRBFlag & AUTO_REQSENSE ) - { - DC390_write8 (ScsiFifo, REQUEST_SENSE); - DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE); - DC390_write8 (ScsiFifo, 0); - DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n")); - } - else /* write cmnd to bus */ - { - u8 *ptr; u8 i; - ptr = (u8 *)scmd->cmnd; - for (i = 0; i < scmd->cmd_len; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - } - } - DEBUG0(if (pACB->pActiveDCB) \ - printk (KERN_WARNING "DC390: ActiveDCB != 0\n")); - DEBUG0(if (pDCB->pActiveSRB) \ - printk (KERN_WARNING "DC390: ActiveSRB != 0\n")); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - if (DC390_read8 (Scsi_Status) & INTERRUPT) - { - dc390_freetag (pDCB, pSRB); - DEBUG0(printk ("DC390: Interrupt during Start SCSI (target %02i-%02i)\n", - scmd->device->id, (u8)scmd->device->lun)); - pSRB->SRBState = SRB_READY; - //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pACB->SelLost++; - return 1; - } - DC390_write8 (ScsiCmd, cmd); - pACB->pActiveDCB = pDCB; - pDCB->pActiveSRB = pSRB; - pACB->Connected = 1; - pSRB->ScsiPhase = SCSI_NOP1; - return 0; -} - - -static void __inline__ -dc390_InvalidCmd(struct dc390_acb* pACB) -{ - if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT)) - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); -} - - -static irqreturn_t __inline__ -DC390_Interrupt(void *dev_id) -{ - struct dc390_acb *pACB = dev_id; - struct dc390_dcb *pDCB; - struct dc390_srb *pSRB; - u8 sstatus=0; - u8 phase; - void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *); - u8 istate, istatus; - - sstatus = DC390_read8 (Scsi_Status); - if( !(sstatus & INTERRUPT) ) - return IRQ_NONE; - - DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus)); - - //DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); - //dstatus = DC390_read8 (DMA_Status); - //DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - spin_lock_irq(pACB->pScsiHost->host_lock); - - istate = DC390_read8 (Intern_State); - istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */ - - DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus)); - dc390_laststatus &= ~0x00ffffff; - dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus; - - if (sstatus & ILLEGAL_OP_ERR) - { - printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus); - dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB); - } - - else if (istatus & INVALID_CMD) - { - printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus); - dc390_InvalidCmd( pACB ); - goto unlock; - } - - if (istatus & SCSI_RESET) - { - dc390_ScsiRstDetect( pACB ); - goto unlock; - } - - if (istatus & DISCONNECTED) - { - dc390_Disconnect( pACB ); - goto unlock; - } - - if (istatus & RESELECTED) - { - dc390_Reselect( pACB ); - goto unlock; - } - - else if (istatus & (SELECTED | SEL_ATTENTION)) - { - printk (KERN_ERR "DC390: Target mode not supported!\n"); - goto unlock; - } - - if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) ) - { - pDCB = pACB->pActiveDCB; - if (!pDCB) - { - printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n"); - goto unlock; - } - pSRB = pDCB->pActiveSRB; - if( pDCB->DCBFlag & ABORT_DEV_ ) - dc390_EnableMsgOut_Abort (pACB, pSRB); - - phase = pSRB->ScsiPhase; - DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus)); - stateV = (void *) dc390_phase0[phase]; - ( *stateV )( pACB, pSRB, &sstatus ); - - pSRB->ScsiPhase = sstatus & 7; - phase = (u8) sstatus & 7; - DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus)); - stateV = (void *) dc390_phase1[phase]; - ( *stateV )( pACB, pSRB, &sstatus ); - } - - unlock: - spin_unlock_irq(pACB->pScsiHost->host_lock); - return IRQ_HANDLED; -} - -static irqreturn_t do_DC390_Interrupt(int irq, void *dev_id) -{ - irqreturn_t ret; - DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq)); - /* Locking is done in DC390_Interrupt */ - ret = DC390_Interrupt(dev_id); - DEBUG1(printk (".. IRQ returned\n")); - return ret; -} - -static void -dc390_DataOut_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 sstatus; - u32 ResidCnt; - u8 dstate = 0; - - sstatus = *psstatus; - - if( !(pSRB->SRBState & SRB_XFERPAD) ) - { - if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) ) - pSRB->SRBStatus |= PARITY_ERROR; - - if( sstatus & COUNT_2_ZERO ) - { - unsigned long timeout = jiffies + HZ; - - /* Function called from the ISR with the host_lock held and interrupts disabled */ - if (pSRB->SGToBeXferLen) - while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { - spin_unlock_irq(pACB->pScsiHost->host_lock); - udelay(50); - spin_lock_irq(pACB->pScsiHost->host_lock); - } - if (!time_before(jiffies, timeout)) - printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n", - DC390_read32 (DMA_Wk_ByteCntr)); - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= dstate << 24; - pSRB->TotalXferredLen += pSRB->SGToBeXferLen; - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - else - { - ResidCnt = ((u32) DC390_read8 (Current_Fifo) & 0x1f) + - (((u32) DC390_read8 (CtcReg_High) << 16) | - ((u32) DC390_read8 (CtcReg_Mid) << 8) | - (u32) DC390_read8 (CtcReg_Low)); - - dc390_advance_segment(pSRB, ResidCnt); - } - } - if ((*psstatus & 7) != SCSI_DATA_OUT) - { - DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - } -} - -static void -dc390_DataIn_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 sstatus, residual, bval; - u32 ResidCnt, i; - unsigned long xferCnt; - - sstatus = *psstatus; - - if( !(pSRB->SRBState & SRB_XFERPAD) ) - { - if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR)) - pSRB->SRBStatus |= PARITY_ERROR; - - if( sstatus & COUNT_2_ZERO ) - { - int dstate = 0; - unsigned long timeout = jiffies + HZ; - - /* Function called from the ISR with the host_lock held and interrupts disabled */ - if (pSRB->SGToBeXferLen) - while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { - spin_unlock_irq(pACB->pScsiHost->host_lock); - udelay(50); - spin_lock_irq(pACB->pScsiHost->host_lock); - } - if (!time_before(jiffies, timeout)) { - printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n", - DC390_read32 (DMA_Wk_ByteCntr)); - printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate); - } - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= dstate << 24; - DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \ - + ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \ - + ((unsigned long) DC390_read8 (CtcReg_Low))); - DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%u,ToBeXfer=%lu),", ResidCnt, pSRB->SGToBeXferLen)); - - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - - pSRB->TotalXferredLen += pSRB->SGToBeXferLen; - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - else /* phase changed */ - { - residual = 0; - bval = DC390_read8 (Current_Fifo); - while( bval & 0x1f ) - { - DEBUG1(printk (KERN_DEBUG "Check for residuals,")); - if( (bval & 0x1f) == 1 ) - { - for(i=0; i < 0x100; i++) - { - bval = DC390_read8 (Current_Fifo); - if( !(bval & 0x1f) ) - goto din_1; - else if( i == 0x0ff ) - { - residual = 1; /* ;1 residual byte */ - goto din_1; - } - } - } - else - bval = DC390_read8 (Current_Fifo); - } -din_1: - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD); - for (i = 0xa000; i; i--) - { - bval = DC390_read8 (DMA_Status); - if (bval & BLAST_COMPLETE) - break; - } - /* It seems a DMA Blast abort isn't that bad ... */ - if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n"); - //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - dc390_laststatus &= ~0xff000000; - dc390_laststatus |= bval << 24; - - DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval)); - ResidCnt = (((u32) DC390_read8 (CtcReg_High) << 16) | - ((u32) DC390_read8 (CtcReg_Mid) << 8)) | - (u32) DC390_read8 (CtcReg_Low); - - xferCnt = dc390_advance_segment(pSRB, ResidCnt); - - if (residual) { - size_t count = 1; - size_t offset = pSRB->SGBusAddr - sg_dma_address(pSRB->pSegmentList); - unsigned long flags; - u8 *ptr; - - bval = DC390_read8 (ScsiFifo); /* get one residual byte */ - - local_irq_save(flags); - ptr = scsi_kmap_atomic_sg(pSRB->pSegmentList, pSRB->SGcount, &offset, &count); - if (likely(ptr)) { - *(ptr + offset) = bval; - scsi_kunmap_atomic_sg(ptr); - } - local_irq_restore(flags); - WARN_ON(!ptr); - - /* 1 more byte read */ - xferCnt += dc390_advance_segment(pSRB, pSRB->SGToBeXferLen - 1); - } - DEBUG1(printk (KERN_DEBUG "Xfered: %lu, Total: %lu, Remaining: %lu\n", xferCnt,\ - pSRB->TotalXferredLen, pSRB->SGToBeXferLen)); - } - } - if ((*psstatus & 7) != SCSI_DATA_IN) - { - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); - } -} - -static void -dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - -static void -dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - - pSRB->TargetStatus = DC390_read8 (ScsiFifo); - //udelay (1); - pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */ - - *psstatus = SCSI_NOP0; - pSRB->SRBState = SRB_COMPLETED; - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); -} - -static void -dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) ) - *psstatus = SCSI_NOP0; - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - - -static void __inline__ -dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB) -{ - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); - dc390_SetXferRate (pACB, pDCB); -} - - -#ifdef DC390_DEBUG0 -static void -dc390_printMsg (u8 *MsgBuf, u8 len) -{ - int i; - printk (" %02x", MsgBuf[0]); - for (i = 1; i < len; i++) - printk (" %02x", MsgBuf[i]); - printk ("\n"); -} -#endif - -#define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD) - -/* reject_msg */ -static void __inline__ -dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - pSRB->MsgOutBuf[0] = MESSAGE_REJECT; - pSRB->MsgCnt = 1; - DC390_ENABLE_MSGOUT; - DEBUG0 (printk (KERN_INFO "DC390: Reject message\n")); -} - -/* abort command */ -static void -dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB ) -{ - pSRB->MsgOutBuf[0] = ABORT; - pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; - pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_; -} - -static struct dc390_srb* -dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag) -{ - struct dc390_srb* pSRB = pDCB->pGoingSRB; - - if (pSRB) - { - struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag); - pSRB = (struct dc390_srb *)scmd->host_scribble; - - if (pDCB->DCBFlag & ABORT_DEV_) - { - pSRB->SRBState = SRB_ABORT_SENT; - dc390_EnableMsgOut_Abort( pACB, pSRB ); - } - - if (!(pSRB->SRBState & SRB_DISCONNECT)) - goto mingx0; - - pDCB->pActiveSRB = pSRB; - pSRB->SRBState = SRB_DATA_XFER; - } - else - { - mingx0: - pSRB = pACB->pTmpSRB; - pSRB->SRBState = SRB_UNEXPECT_RESEL; - pDCB->pActiveSRB = pSRB; - pSRB->MsgOutBuf[0] = ABORT_TAG; - pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; - } - return pSRB; -} - - -/* set async transfer mode */ -static void -dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - struct dc390_dcb* pDCB = pSRB->pSRBDCB; - if (!(pSRB->SRBState & DO_SYNC_NEGO)) - printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID); - pSRB->SRBState &= ~DO_SYNC_NEGO; - pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE); - pDCB->SyncPeriod = 0; - pDCB->SyncOffset = 0; - //pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ - pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */ - pDCB->CtrlR4 &= 0x3f; - pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ - dc390_reprog (pACB, pDCB); -} - -/* set sync transfer mode */ -static void -dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - u8 bval; - u16 wval, wval1; - struct dc390_dcb* pDCB = pSRB->pSRBDCB; - u8 oldsyncperiod = pDCB->SyncPeriod; - u8 oldsyncoffset = pDCB->SyncOffset; - - if (!(pSRB->SRBState & DO_SYNC_NEGO)) - { - printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n", - pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]); - - /* reject */ - //dc390_MsgIn_reject (pACB, pSRB); - //return dc390_MsgIn_set_async (pACB, pSRB); - - /* Reply with corrected SDTR Message */ - if (pSRB->MsgInBuf[4] > 15) - { - printk (KERN_INFO "DC390: Lower Sync Offset to 15\n"); - pSRB->MsgInBuf[4] = 15; - } - if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod) - { - printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2); - pSRB->MsgInBuf[3] = pDCB->NegoPeriod; - } - memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5); - pSRB->MsgCnt = 5; - DC390_ENABLE_MSGOUT; - } - - pSRB->SRBState &= ~DO_SYNC_NEGO; - pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE; - pDCB->SyncOffset &= 0x0f0; - pDCB->SyncOffset |= pSRB->MsgInBuf[4]; - pDCB->NegoPeriod = pSRB->MsgInBuf[3]; - - wval = (u16) pSRB->MsgInBuf[3]; - wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */ - if( (wval1 * 25) != wval) wval1++; - bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */ - - pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */ - if (pACB->glitch_cfg != NS_TO_GLITCH(0)) - pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1)); - else - pDCB->CtrlR4 |= NS_TO_GLITCH(0); - if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */ - - if (wval1 >= 8) - { - wval1--; /* Timing computation differs by 1 from FAST_SCSI */ - bval = FAST_CLK; /* fast clock / normal scsi */ - pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ - } - - pDCB->CtrlR3 = bval; - pDCB->SyncPeriod = (u8)wval1; - - if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0) - { - if (! (bval & FAST_SCSI)) wval1++; - printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID, - 40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f); - } - - dc390_reprog (pACB, pDCB); -} - - -/* handle RESTORE_PTR */ -/* This doesn't look very healthy... to-be-fixed */ -static void -dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd = pSRB->pcmd; - struct scatterlist *psgl; - pSRB->TotalXferredLen = 0; - pSRB->SGIndex = 0; - if (scsi_sg_count(pcmd)) { - size_t saved; - pSRB->pSegmentList = scsi_sglist(pcmd); - psgl = pSRB->pSegmentList; - //dc390_pci_sync(pSRB); - - while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr) - { - pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl); - pSRB->SGIndex++; - if( pSRB->SGIndex < pSRB->SGcount ) - { - pSRB->pSegmentList++; - - dc390_start_segment(pSRB); - } - else - pSRB->SGToBeXferLen = 0; - } - - saved = pSRB->Saved_Ptr - pSRB->TotalXferredLen; - pSRB->SGToBeXferLen -= saved; - pSRB->SGBusAddr += saved; - printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n", - pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr); - - } else { - pSRB->SGcount = 0; - printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n"); - } - - pSRB->TotalXferredLen = pSRB->Saved_Ptr; -} - - -/* According to the docs, the AM53C974 reads the message and - * generates a Successful Operation IRQ before asserting ACK for - * the last byte (how does it know whether it's the last ?) */ -/* The old code handled it in another way, indicating, that on - * every message byte an IRQ is generated and every byte has to - * be manually ACKed. Hmmm ? (KG, 98/11/28) */ -/* The old implementation was correct. Sigh! */ - -/* Check if the message is complete */ -static u8 __inline__ -dc390_MsgIn_complete (u8 *msgbuf, u32 len) -{ - if (*msgbuf == EXTENDED_MESSAGE) - { - if (len < 2) return 0; - if (len < msgbuf[1] + 2) return 0; - } - else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages - if (len < 2) return 0; - return 1; -} - - - -/* read and eval received messages */ -static void -dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - struct dc390_dcb* pDCB = pACB->pActiveDCB; - - /* Read the msg */ - - pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo); - //pSRB->SRBState = 0; - - /* Msg complete ? */ - if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen)) - { - DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen)); - /* Now eval the msg */ - switch (pSRB->MsgInBuf[0]) - { - case DISCONNECT: - pSRB->SRBState = SRB_DISCONNECT; break; - - case SIMPLE_QUEUE_TAG: - case HEAD_OF_QUEUE_TAG: - case ORDERED_QUEUE_TAG: - pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]); - break; - - case MESSAGE_REJECT: - DC390_write8 (ScsiCmd, RESET_ATN_CMD); - pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ - if( pSRB->SRBState & DO_SYNC_NEGO) - dc390_MsgIn_set_async (pACB, pSRB); - break; - - case EXTENDED_MESSAGE: - /* reject every extended msg but SDTR */ - if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR) - dc390_MsgIn_reject (pACB, pSRB); - else - { - if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0) - dc390_MsgIn_set_async (pACB, pSRB); - else - dc390_MsgIn_set_sync (pACB, pSRB); - } - - // nothing has to be done - case COMMAND_COMPLETE: break; - - // SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the - // scsi command. Thanks, Gerard, for pointing it out. - case SAVE_POINTERS: - pSRB->Saved_Ptr = pSRB->TotalXferredLen; - break; - // The device might want to restart transfer with a RESTORE - case RESTORE_POINTERS: - DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n")); - dc390_restore_ptr (pACB, pSRB); - break; - - // reject unknown messages - default: dc390_MsgIn_reject (pACB, pSRB); - } - - /* Clear counter and MsgIn state */ - pSRB->SRBState &= ~SRB_MSGIN; - pACB->MsgLen = 0; - } - - *psstatus = SCSI_NOP0; - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - - -static void -dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir) -{ - unsigned long lval; - struct dc390_dcb* pDCB = pACB->pActiveDCB; - - if (pSRB == pACB->pTmpSRB) - { - if (pDCB) - printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN); - else - printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n"); - - /* Try to recover - some broken disks react badly to tagged INQUIRY */ - if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) { - pSRB = pDCB->pGoingSRB; - pDCB->pActiveSRB = pSRB; - } else { - pSRB->pSRBDCB = pDCB; - dc390_EnableMsgOut_Abort(pACB, pSRB); - if (pDCB) - pDCB->DCBFlag |= ABORT_DEV; - return; - } - } - - if( pSRB->SGIndex < pSRB->SGcount ) - { - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - if( !pSRB->SGToBeXferLen ) - { - dc390_start_segment(pSRB); - - DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment.")); - } - lval = pSRB->SGToBeXferLen; - DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr)); - DC390_write8 (CtcReg_Low, (u8) lval); - lval >>= 8; - DC390_write8 (CtcReg_Mid, (u8) lval); - lval >>= 8; - DC390_write8 (CtcReg_High, (u8) lval); - - DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen); - DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr); - - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - pSRB->SRBState = SRB_DATA_XFER; - - DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD); - - DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir); - //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT)); - //DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status))); - //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT)); - } - else /* xfer pad */ - { - if( pSRB->SGcount ) - { - pSRB->AdaptStatus = H_OVER_UNDER_RUN; - pSRB->SRBStatus |= OVER_RUN; - DEBUG0(printk (KERN_WARNING " DC390: Overrun -")); - } - DEBUG0(printk (KERN_WARNING " Clear transfer pad \n")); - DC390_write8 (CtcReg_Low, 0); - DC390_write8 (CtcReg_Mid, 0); - DC390_write8 (CtcReg_High, 0); - - pSRB->SRBState |= SRB_XFERPAD; - DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE); -/* - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); - DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir); -*/ - } -} - - -static void -dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION); -} - -static void -dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION); -} - -static void -dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - struct dc390_dcb* pDCB; - u8 i, cnt; - u8 *ptr; - - DC390_write8 (ScsiCmd, RESET_ATN_CMD); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - if( !(pSRB->SRBFlag & AUTO_REQSENSE) ) - { - cnt = (u8) pSRB->pcmd->cmd_len; - ptr = (u8 *) pSRB->pcmd->cmnd; - for(i=0; i < cnt; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - } - else - { - DC390_write8 (ScsiFifo, REQUEST_SENSE); - pDCB = pACB->pActiveDCB; - DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, 0); - DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE); - DC390_write8 (ScsiFifo, 0); - DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n")); - } - pSRB->SRBState = SRB_COMMAND; - DC390_write8 (ScsiCmd, INFO_XFER_CMD); -} - -static void -dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pSRB->SRBState = SRB_STATUS; - DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - -static void -dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - u8 bval, i, cnt; - u8 *ptr; - struct dc390_dcb* pDCB; - - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pDCB = pACB->pActiveDCB; - if( !(pSRB->SRBState & SRB_MSGOUT) ) - { - cnt = pSRB->MsgCnt; - if( cnt ) - { - ptr = (u8 *) pSRB->MsgOutBuf; - for(i=0; i < cnt; i++) - DC390_write8 (ScsiFifo, *(ptr++)); - pSRB->MsgCnt = 0; - if( (pDCB->DCBFlag & ABORT_DEV_) && - (pSRB->MsgOutBuf[0] == ABORT) ) - pSRB->SRBState = SRB_ABORT_SENT; - } - else - { - bval = ABORT; /* ??? MSG_NOP */ - if( (pSRB->pcmd->cmnd[0] == INQUIRY ) || - (pSRB->pcmd->cmnd[0] == REQUEST_SENSE) || - (pSRB->SRBFlag & AUTO_REQSENSE) ) - { - if( pDCB->SyncMode & SYNC_ENABLE ) - goto mop1; - } - DC390_write8 (ScsiFifo, bval); - } - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - } - else - { -mop1: - printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN); - DC390_write8 (ScsiFifo, EXTENDED_MESSAGE); - DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */ - DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */ - DC390_write8 (ScsiFifo, pDCB->NegoPeriod); - if (pDCB->SyncOffset & 0x0f) - DC390_write8 (ScsiFifo, pDCB->SyncOffset); - else - DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET); - pSRB->SRBState |= DO_SYNC_NEGO; - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - } -} - -static void -dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - if( !(pSRB->SRBState & SRB_MSGIN) ) - { - pSRB->SRBState &= ~SRB_DISCONNECT; - pSRB->SRBState |= SRB_MSGIN; - } - DC390_write8 (ScsiCmd, INFO_XFER_CMD); - //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); -} - -static void -dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - -static void -dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) -{ -} - - -static void -dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ) -{ - u8 bval, i, cnt; - struct dc390_dcb* ptr; - - if( !(pDCB->TargetLUN) ) - { - if( !pACB->scan_devices ) - { - ptr = pACB->pLinkDCB; - cnt = pACB->DCBCnt; - bval = pDCB->TargetID; - for(i=0; i<cnt; i++) - { - if( ptr->TargetID == bval ) - { - ptr->SyncPeriod = pDCB->SyncPeriod; - ptr->SyncOffset = pDCB->SyncOffset; - ptr->CtrlR3 = pDCB->CtrlR3; - ptr->CtrlR4 = pDCB->CtrlR4; - ptr->SyncMode = pDCB->SyncMode; - } - ptr = ptr->pNextDCB; - } - } - } - return; -} - - -static void -dc390_Disconnect( struct dc390_acb* pACB ) -{ - struct dc390_dcb *pDCB; - struct dc390_srb *pSRB, *psrb; - u8 i, cnt; - - DEBUG0(printk(KERN_INFO "DISC,")); - - if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n"); - pACB->Connected = 0; - pDCB = pACB->pActiveDCB; - if (!pDCB) - { - DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\ - pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel)); - mdelay(400); - DC390_read8 (INT_Status); /* Reset Pending INT */ - DC390_write8 (ScsiCmd, EN_SEL_RESEL); - return; - } - DC390_write8 (ScsiCmd, EN_SEL_RESEL); - pSRB = pDCB->pActiveSRB; - pACB->pActiveDCB = NULL; - pSRB->ScsiPhase = SCSI_NOP0; - if( pSRB->SRBState & SRB_UNEXPECT_RESEL ) - pSRB->SRBState = 0; - else if( pSRB->SRBState & SRB_ABORT_SENT ) - { - pDCB->TagMask = 0; - pDCB->DCBFlag = 0; - cnt = pDCB->GoingSRBCnt; - pDCB->GoingSRBCnt = 0; - pSRB = pDCB->pGoingSRB; - for( i=0; i < cnt; i++) - { - psrb = pSRB->pNextSRB; - dc390_Free_insert (pACB, pSRB); - pSRB = psrb; - } - pDCB->pGoingSRB = NULL; - } - else - { - if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) || - !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) ) - { /* Selection time out */ - pSRB->AdaptStatus = H_SEL_TIMEOUT; - pSRB->TargetStatus = 0; - goto disc1; - } - else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED)) - { -disc1: - dc390_freetag (pDCB, pSRB); - pDCB->pActiveSRB = NULL; - pSRB->SRBState = SRB_FREE; - dc390_SRBdone( pACB, pDCB, pSRB); - } - } - pACB->MsgLen = 0; -} - - -static void -dc390_Reselect( struct dc390_acb* pACB ) -{ - struct dc390_dcb* pDCB; - struct dc390_srb* pSRB; - u8 id, lun; - - DEBUG0(printk(KERN_INFO "RSEL,")); - pACB->Connected = 1; - pDCB = pACB->pActiveDCB; - if( pDCB ) - { /* Arbitration lost but Reselection won */ - DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n")); - pSRB = pDCB->pActiveSRB; - if( !( pACB->scan_devices ) ) - { - struct scsi_cmnd *pcmd = pSRB->pcmd; - scsi_set_resid(pcmd, scsi_bufflen(pcmd)); - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - dc390_Going_remove(pDCB, pSRB); - dc390_Free_insert(pACB, pSRB); - pcmd->scsi_done (pcmd); - DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB)); - } - } - /* Get ID */ - lun = DC390_read8 (ScsiFifo); - DEBUG0(printk ("Dev %02x,", lun)); - if (!(lun & (1 << pACB->pScsiHost->this_id))) - printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun); - else - lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */ - id = 0; while (lun >>= 1) id++; - /* Get LUN */ - lun = DC390_read8 (ScsiFifo); - if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n"); - lun &= 7; - DEBUG0(printk ("(%02i-%i),", id, lun)); - pDCB = dc390_findDCB (pACB, id, lun); - if (!pDCB) - { - printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n", - id, lun); - return; - } - pACB->pActiveDCB = pDCB; - /* TagQ: We expect a message soon, so never mind the exact SRB */ - if( pDCB->SyncMode & EN_TAG_QUEUEING ) - { - pSRB = pACB->pTmpSRB; - pDCB->pActiveSRB = pSRB; - } - else - { - pSRB = pDCB->pActiveSRB; - if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) ) - { - pSRB= pACB->pTmpSRB; - pSRB->SRBState = SRB_UNEXPECT_RESEL; - printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n", - id, lun); - pDCB->pActiveSRB = pSRB; - dc390_EnableMsgOut_Abort ( pACB, pSRB ); - } - else - { - if( pDCB->DCBFlag & ABORT_DEV_ ) - { - pSRB->SRBState = SRB_ABORT_SENT; - printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n", - id, lun); - dc390_EnableMsgOut_Abort( pACB, pSRB ); - } - else - pSRB->SRBState = SRB_DATA_XFER; - } - } - - DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber)); - pSRB->ScsiPhase = SCSI_NOP0; - DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); - DC390_write8 (Sync_Period, pDCB->SyncPeriod); - DC390_write8 (Sync_Offset, pDCB->SyncOffset); - DC390_write8 (CtrlReg1, pDCB->CtrlR1); - DC390_write8 (CtrlReg3, pDCB->CtrlR3); - DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */ - DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */ -} - -static int __inline__ -dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - struct scsi_cmnd *pcmd; - - pcmd = pSRB->pcmd; - - REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\ - pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN)); - - pSRB->SRBFlag |= AUTO_REQSENSE; - pSRB->SavedTotXLen = pSRB->TotalXferredLen; - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */ - - /* We are called from SRBdone, original PCI mapping has been removed - * already, new one is set up from StartSCSI */ - pSRB->SGIndex = 0; - - pSRB->TotalXferredLen = 0; - pSRB->SGToBeXferLen = 0; - return dc390_StartSCSI(pACB, pDCB, pSRB); -} - - -static void -dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) -{ - u8 status; - struct scsi_cmnd *pcmd; - - pcmd = pSRB->pcmd; - /* KG: Moved pci_unmap here */ - dc390_pci_unmap(pSRB); - - status = pSRB->TargetStatus; - - DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p\n", status, pcmd->result, pSRB)); - if(pSRB->SRBFlag & AUTO_REQSENSE) - { /* Last command was a Request Sense */ - pSRB->SRBFlag &= ~AUTO_REQSENSE; - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = SAM_STAT_CHECK_CONDITION; - - //pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status); - if (status == SAM_STAT_CHECK_CONDITION) - pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0); - else /* Retry */ - { - if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */) - { - /* Don't retry on TEST_UNIT_READY */ - pcmd->result = MK_RES_LNX(DRIVER_SENSE, DID_OK, 0, SAM_STAT_CHECK_CONDITION); - REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\ - (u32) pcmd->result, (u32) pSRB->TotalXferredLen)); - } else { - SET_RES_DRV(pcmd->result, DRIVER_SENSE); - //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8); - DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun)); - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - } - } - goto cmd_done; - } - if( status ) - { - if (status == SAM_STAT_CHECK_CONDITION) - { - if (dc390_RequestSense(pACB, pDCB, pSRB)) { - SET_RES_DID(pcmd->result, DID_ERROR); - goto cmd_done; - } - return; - } - else if (status == SAM_STAT_TASK_SET_FULL) - { - scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1); - DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, (u8)pcmd->device->lun)); - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - } - else if (status == SAM_STAT_BUSY && - (pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) && - pACB->scan_devices) - { - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = status; - pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0); - } - else - { /* Another error */ - pSRB->TotalXferredLen = 0; - SET_RES_DID(pcmd->result, DID_SOFT_ERROR); - goto cmd_done; - } - } - else - { /* Target status == 0 */ - status = pSRB->AdaptStatus; - if (status == H_OVER_UNDER_RUN) - { - pSRB->TargetStatus = 0; - SET_RES_DID(pcmd->result,DID_OK); - SET_RES_MSG(pcmd->result,pSRB->EndMessage); - } - else if (status == H_SEL_TIMEOUT) - { - pcmd->result = MK_RES(0, DID_NO_CONNECT, 0, 0); - /* Devices are removed below ... */ - } - else if( pSRB->SRBStatus & PARITY_ERROR) - { - //pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0); - SET_RES_DID(pcmd->result,DID_PARITY); - SET_RES_MSG(pcmd->result,pSRB->EndMessage); - } - else /* No error */ - { - pSRB->AdaptStatus = 0; - pSRB->TargetStatus = 0; - SET_RES_DID(pcmd->result,DID_OK); - } - } - -cmd_done: - scsi_set_resid(pcmd, scsi_bufflen(pcmd) - pSRB->TotalXferredLen); - - dc390_Going_remove (pDCB, pSRB); - /* Add to free list */ - dc390_Free_insert (pACB, pSRB); - - DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done\n")); - pcmd->scsi_done (pcmd); - - return; -} - - -/* Remove all SRBs from Going list and inform midlevel */ -static void -dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd) -{ - struct dc390_dcb *pDCB, *pdcb; - struct dc390_srb *psrb, *psrb2; - int i; - struct scsi_cmnd *pcmd; - - pDCB = pACB->pLinkDCB; - pdcb = pDCB; - if (! pdcb) return; - do - { - psrb = pdcb->pGoingSRB; - for (i = 0; i < pdcb->GoingSRBCnt; i++) - { - psrb2 = psrb->pNextSRB; - pcmd = psrb->pcmd; - dc390_Free_insert (pACB, psrb); - psrb = psrb2; - } - pdcb->GoingSRBCnt = 0; - pdcb->pGoingSRB = NULL; - pdcb->TagMask = 0; - pdcb = pdcb->pNextDCB; - } while( pdcb != pDCB ); -} - - -static void -dc390_ResetSCSIBus( struct dc390_acb* pACB ) -{ - //DC390_write8 (ScsiCmd, RST_DEVICE_CMD); - //udelay (250); - //DC390_write8 (ScsiCmd, NOP_CMD); - - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD); - pACB->Connected = 0; - - return; -} - -static void -dc390_ScsiRstDetect( struct dc390_acb* pACB ) -{ - printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus); - //DEBUG0(printk(KERN_INFO "RST_DETECT,")); - - DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); - /* Unlock before ? */ - /* delay half a second */ - udelay (1000); - DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); - pACB->last_reset = jiffies + 5*HZ/2 - + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - pACB->Connected = 0; - - if( pACB->ACBFlag & RESET_DEV ) - pACB->ACBFlag |= RESET_DONE; - else - { /* Reset was issued by sb else */ - pACB->ACBFlag |= RESET_DETECT; - - dc390_ResetDevParam( pACB ); - dc390_DoingSRB_Done( pACB, NULL); - //dc390_RecoverSRB( pACB ); - pACB->pActiveDCB = NULL; - pACB->ACBFlag = 0; - } - return; -} - -static int DC390_queuecommand_lck(struct scsi_cmnd *cmd, - void (*done)(struct scsi_cmnd *)) -{ - struct scsi_device *sdev = cmd->device; - struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; - struct dc390_dcb *dcb = sdev->hostdata; - struct dc390_srb *srb; - - if (sdev->queue_depth <= dcb->GoingSRBCnt) - goto device_busy; - if (acb->pActiveDCB) - goto host_busy; - if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV)) - goto host_busy; - - srb = acb->pFreeSRB; - if (unlikely(srb == NULL)) - goto host_busy; - - cmd->scsi_done = done; - cmd->result = 0; - acb->Cmds++; - - acb->pFreeSRB = srb->pNextSRB; - srb->pNextSRB = NULL; - - srb->pSRBDCB = dcb; - srb->pcmd = cmd; - cmd->host_scribble = (char *)srb; - - srb->SGIndex = 0; - srb->AdaptStatus = 0; - srb->TargetStatus = 0; - srb->MsgCnt = 0; - - srb->SRBStatus = 0; - srb->SRBFlag = 0; - srb->SRBState = 0; - srb->TotalXferredLen = 0; - srb->SGBusAddr = 0; - srb->SGToBeXferLen = 0; - srb->ScsiPhase = 0; - srb->EndMessage = 0; - srb->TagNumber = SCSI_NO_TAG; - - if (dc390_StartSCSI(acb, dcb, srb)) { - dc390_Free_insert(acb, srb); - goto host_busy; - } - - dc390_Going_append(dcb, srb); - - return 0; - - host_busy: - return SCSI_MLQUEUE_HOST_BUSY; - - device_busy: - return SCSI_MLQUEUE_DEVICE_BUSY; -} - -static DEF_SCSI_QCMD(DC390_queuecommand) - -static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) -{ - struct pci_dev *pdev; - u16 pstat; - - if (!pDCB) pDCB = pACB->pActiveDCB; - if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB; - - if (pSRB) - { - printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n", - pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState, - pSRB->ScsiPhase); - printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus); - } - printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus); - printk ("DC390: Register dump: SCSI block:\n"); - printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n"); - printk ("DC390: %06x %02x %02x %02x", - DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16), - DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State)); - printk (" %02x %02x %02x %02x %02x %02x\n", - DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1), - DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4)); - DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); - if (DC390_read8(Current_Fifo) & 0x1f) - { - printk ("DC390: FIFO:"); - while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo)); - printk ("\n"); - } - printk ("DC390: Register dump: DMA engine:\n"); - printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n"); - printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n", - DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr), - DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr), - DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl)); - DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - pdev = pACB->pdev; - pci_read_config_word(pdev, PCI_STATUS, &pstat); - printk ("DC390: Register dump: PCI Status: %04x\n", pstat); - printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\n"); -} - - -static int DC390_abort(struct scsi_cmnd *cmd) -{ - struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata; - struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata; - - scmd_printk(KERN_WARNING, cmd, "DC390: Abort command\n"); - - /* abort() is too stupid for already sent commands at the moment. - * If it's called we are in trouble anyway, so let's dump some info - * into the syslog at least. (KG, 98/08/20,99/06/20) */ - dc390_dumpinfo(pACB, pDCB, NULL); - - pDCB->DCBFlag |= ABORT_DEV_; - printk(KERN_INFO "DC390: Aborted.\n"); - - return FAILED; -} - - -static void dc390_ResetDevParam( struct dc390_acb* pACB ) -{ - struct dc390_dcb *pDCB, *pdcb; - - pDCB = pACB->pLinkDCB; - if (! pDCB) return; - pdcb = pDCB; - do - { - pDCB->SyncMode &= ~SYNC_NEGO_DONE; - pDCB->SyncPeriod = 0; - pDCB->SyncOffset = 0; - pDCB->TagMask = 0; - pDCB->CtrlR3 = FAST_CLK; - pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK; - pDCB->CtrlR4 |= pACB->glitch_cfg; - pDCB = pDCB->pNextDCB; - } - while( pdcb != pDCB ); - pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT); - -} - -static int DC390_bus_reset (struct scsi_cmnd *cmd) -{ - struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata; - u8 bval; - - spin_lock_irq(cmd->device->host->host_lock); - - bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; - DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */ - - pACB->ACBFlag |= RESET_DEV; - dc390_ResetSCSIBus(pACB); - - dc390_ResetDevParam(pACB); - mdelay(1); - pACB->last_reset = jiffies + 3*HZ/2 - + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); - DC390_read8(INT_Status); /* Reset Pending INT */ - - dc390_DoingSRB_Done(pACB, cmd); - - pACB->pActiveDCB = NULL; - pACB->ACBFlag = 0; - - bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST; - DC390_write8(CtrlReg1, bval); /* re-enable interrupt */ - - spin_unlock_irq(cmd->device->host->host_lock); - - return SUCCESS; -} - -/** - * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new - * scsi device that we need to deal with. - * - * @scsi_device: The new scsi device that we need to handle. - */ -static int dc390_slave_alloc(struct scsi_device *scsi_device) -{ - struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata; - struct dc390_dcb *pDCB, *pDCB2 = NULL; - uint id = scsi_device->id; - uint lun = scsi_device->lun; - - pDCB = kzalloc(sizeof(struct dc390_dcb), GFP_KERNEL); - if (!pDCB) - return -ENOMEM; - - if (!pACB->DCBCnt++) { - pACB->pLinkDCB = pDCB; - pACB->pDCBRunRobin = pDCB; - } else { - pACB->pLastDCB->pNextDCB = pDCB; - } - - pDCB->pNextDCB = pACB->pLinkDCB; - pACB->pLastDCB = pDCB; - - pDCB->pDCBACB = pACB; - pDCB->TargetID = id; - pDCB->TargetLUN = lun; - - /* - * Some values are for all LUNs: Copy them - * In a clean way: We would have an own structure for a SCSI-ID - */ - if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) { - pDCB->DevMode = pDCB2->DevMode; - pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE; - pDCB->SyncPeriod = pDCB2->SyncPeriod; - pDCB->SyncOffset = pDCB2->SyncOffset; - pDCB->NegoPeriod = pDCB2->NegoPeriod; - - pDCB->CtrlR3 = pDCB2->CtrlR3; - pDCB->CtrlR4 = pDCB2->CtrlR4; - } else { - u8 index = pACB->AdapterIndex; - PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2]; - - pDCB->DevMode = prom->EE_MODE1; - pDCB->NegoPeriod = - (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2; - pDCB->CtrlR3 = FAST_CLK; - pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED; - if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) - pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK; - } - - if (pDCB->DevMode & SYNC_NEGO_) - pDCB->SyncMode |= SYNC_ENABLE; - else { - pDCB->SyncMode = 0; - pDCB->SyncOffset &= ~0x0f; - } - - pDCB->CtrlR1 = pACB->pScsiHost->this_id; - if (pDCB->DevMode & PARITY_CHK_) - pDCB->CtrlR1 |= PARITY_ERR_REPO; - - pACB->scan_devices = 1; - scsi_device->hostdata = pDCB; - return 0; -} - -/** - * dc390_slave_destroy - Called by the scsi mid layer to tell us about a - * device that is going away. - * - * @scsi_device: The scsi device that we need to remove. - */ -static void dc390_slave_destroy(struct scsi_device *scsi_device) -{ - struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata; - struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata; - struct dc390_dcb* pPrevDCB = pACB->pLinkDCB; - - pACB->scan_devices = 0; - - BUG_ON(pDCB->GoingSRBCnt > 1); - - if (pDCB == pACB->pLinkDCB) { - if (pACB->pLastDCB == pDCB) { - pDCB->pNextDCB = NULL; - pACB->pLastDCB = NULL; - } - pACB->pLinkDCB = pDCB->pNextDCB; - } else { - while (pPrevDCB->pNextDCB != pDCB) - pPrevDCB = pPrevDCB->pNextDCB; - pPrevDCB->pNextDCB = pDCB->pNextDCB; - if (pDCB == pACB->pLastDCB) - pACB->pLastDCB = pPrevDCB; - } - - if (pDCB == pACB->pActiveDCB) - pACB->pActiveDCB = NULL; - if (pDCB == pACB->pLinkDCB) - pACB->pLinkDCB = pDCB->pNextDCB; - if (pDCB == pACB->pDCBRunRobin) - pACB->pDCBRunRobin = pDCB->pNextDCB; - kfree(pDCB); - - pACB->DCBCnt--; -} - -static int dc390_slave_configure(struct scsi_device *sdev) -{ - struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; - struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; - - acb->scan_devices = 0; - - /* - * XXX: Note that while this driver used to called scsi_activate_tcq, - * it never actually set a tag type, so emulate the old behavior. - */ - scsi_set_tag_type(sdev, 0); - - if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { - dcb->SyncMode |= EN_TAG_QUEUEING; - scsi_adjust_queue_depth(sdev, acb->TagMaxNum); - } - - return 0; -} - -static struct scsi_host_template driver_template = { - .module = THIS_MODULE, - .proc_name = "tmscsim", - .name = DC390_BANNER " V" DC390_VERSION, - .slave_alloc = dc390_slave_alloc, - .slave_configure = dc390_slave_configure, - .slave_destroy = dc390_slave_destroy, - .queuecommand = DC390_queuecommand, - .eh_abort_handler = DC390_abort, - .eh_bus_reset_handler = DC390_bus_reset, - .can_queue = 1, - .this_id = 7, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 1, - .use_clustering = ENABLE_CLUSTERING, - .max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */ - .use_blk_tags = 1, -}; - -/*********************************************************************** - * Functions for access to DC390 EEPROM - * and some to emulate it - * - **********************************************************************/ - -static void dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd) -{ - u8 carryFlag = 1, j = 0x80, bval; - int i; - - for (i = 0; i < 9; i++) { - if (carryFlag) { - pci_write_config_byte(pdev, 0x80, 0x40); - bval = 0xc0; - } else - bval = 0x80; - - udelay(160); - pci_write_config_byte(pdev, 0x80, bval); - udelay(160); - pci_write_config_byte(pdev, 0x80, 0); - udelay(160); - - carryFlag = (cmd & j) ? 1 : 0; - j >>= 1; - } -} - -static u16 dc390_eeprom_get_data(struct pci_dev *pdev) -{ - int i; - u16 wval = 0; - u8 bval; - - for (i = 0; i < 16; i++) { - wval <<= 1; - - pci_write_config_byte(pdev, 0x80, 0x80); - udelay(160); - pci_write_config_byte(pdev, 0x80, 0x40); - udelay(160); - pci_read_config_byte(pdev, 0x00, &bval); - - if (bval == 0x22) - wval |= 1; - } - - return wval; -} - -static void dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr) -{ - u8 cmd = EEPROM_READ, i; - - for (i = 0; i < 0x40; i++) { - pci_write_config_byte(pdev, 0xc0, 0); - udelay(160); - - dc390_eeprom_prepare_read(pdev, cmd++); - *ptr++ = dc390_eeprom_get_data(pdev); - - pci_write_config_byte(pdev, 0x80, 0); - pci_write_config_byte(pdev, 0x80, 0); - udelay(160); - } -} - -/* Override EEprom values with explicitly set values */ -static void dc390_eeprom_override(u8 index) -{ - u8 *ptr = (u8 *) dc390_eepromBuf[index], id; - - /* Adapter Settings */ - if (tmscsim[0] != -2) - ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */ - if (tmscsim[3] != -2) - ptr[EE_MODE2] = (u8)tmscsim[3]; - if (tmscsim[5] != -2) - ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */ - if (tmscsim[4] != -2) - ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */ - - /* Device Settings */ - for (id = 0; id < MAX_SCSI_ID; id++) { - if (tmscsim[2] != -2) - ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */ - if (tmscsim[1] != -2) - ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */ - } -} - -static int tmscsim_def[] = { - 7, - 0 /* 10MHz */, - PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_, - MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK, - 3 /* 16 Tags per LUN */, - 1 /* s delay after Reset */, -}; - -/* Copy defaults over set values where missing */ -static void dc390_fill_with_defaults (void) -{ - int i; - - for (i = 0; i < 6; i++) { - if (tmscsim[i] < 0 || tmscsim[i] > 255) - tmscsim[i] = tmscsim_def[i]; - } - - /* Sanity checks */ - if (tmscsim[0] > 7) - tmscsim[0] = 7; - if (tmscsim[1] > 7) - tmscsim[1] = 4; - if (tmscsim[4] > 5) - tmscsim[4] = 4; - if (tmscsim[5] > 180) - tmscsim[5] = 180; -} - -static void dc390_check_eeprom(struct pci_dev *pdev, u8 index) -{ - u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120}; - u8 EEbuf[128]; - u16 *ptr = (u16 *)EEbuf, wval = 0; - int i; - - dc390_read_eeprom(pdev, ptr); - memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID); - memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID], - &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID); - - dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]]; - - for (i = 0; i < 0x40; i++, ptr++) - wval += *ptr; - - /* no Tekram EEprom found */ - if (wval != 0x1234) { - int speed; - - printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n"); - - /* - * XXX(hch): bogus, because we might have tekram and - * non-tekram hbas in a single machine. - */ - dc390_fill_with_defaults(); - - speed = dc390_clock_speed[tmscsim[1]]; - printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), " - "DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n", - tmscsim[0], tmscsim[1], speed / 10, speed % 10, - (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]); - } -} - -static void dc390_init_hw(struct dc390_acb *pACB, u8 index) -{ - struct Scsi_Host *shost = pACB->pScsiHost; - u8 dstate; - - /* Disable SCSI bus reset interrupt */ - DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id); - - if (pACB->Gmode2 & RST_SCSI_BUS) { - dc390_ResetSCSIBus(pACB); - udelay(1000); - pACB->last_reset = jiffies + HZ/2 + - HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; - } - - pACB->ACBFlag = 0; - - /* Reset Pending INT */ - DC390_read8(INT_Status); - - /* 250ms selection timeout */ - DC390_write8(Scsi_TimeOut, SEL_TIMEOUT); - - /* Conversion factor = 0 , 40MHz clock */ - DC390_write8(Clk_Factor, CLK_FREQ_40MHZ); - - /* NOP cmd - clear command register */ - DC390_write8(ScsiCmd, NOP_CMD); - - /* Enable Feature and SCSI-2 */ - DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); - - /* Fast clock */ - DC390_write8(CtrlReg3, FAST_CLK); - - /* Negation */ - DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */ - (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? - NEGATE_REQACKDATA : 0); - - /* Clear Transfer Count High: ID */ - DC390_write8(CtcReg_High, 0); - DC390_write8(DMA_Cmd, DMA_IDLE_CMD); - DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); - DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); - - dstate = DC390_read8(DMA_Status); - DC390_write8(DMA_Status, dstate); -} - -static int dc390_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct dc390_acb *pACB; - struct Scsi_Host *shost; - unsigned long io_port; - int error = -ENODEV, i; - - if (pci_enable_device(pdev)) - goto out; - - pci_set_master(pdev); - - error = -ENOMEM; - if (disable_clustering) - driver_template.use_clustering = DISABLE_CLUSTERING; - shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb)); - if (!shost) - goto out_disable_device; - - pACB = (struct dc390_acb *)shost->hostdata; - memset(pACB, 0, sizeof(struct dc390_acb)); - - dc390_check_eeprom(pdev, dc390_adapterCnt); - dc390_eeprom_override(dc390_adapterCnt); - - io_port = pci_resource_start(pdev, 0); - - shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]; - shost->io_port = io_port; - shost->n_io_port = 0x80; - shost->irq = pdev->irq; - shost->base = io_port; - shost->unique_id = io_port; - - pACB->last_reset = jiffies; - pACB->pScsiHost = shost; - pACB->IOPortBase = (u16) io_port; - pACB->IRQLevel = pdev->irq; - - shost->max_id = 8; - - if (shost->max_id - 1 == - dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]) - shost->max_id--; - - if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK) - shost->max_lun = 8; - else - shost->max_lun = 1; - - pACB->pFreeSRB = pACB->SRB_array; - pACB->SRBCount = MAX_SRB_CNT; - pACB->AdapterIndex = dc390_adapterCnt; - pACB->TagMaxNum = - 2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM]; - pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2]; - - for (i = 0; i < pACB->SRBCount-1; i++) - pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1]; - pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL; - pACB->pTmpSRB = &pACB->TmpSRB; - - pACB->sel_timeout = SEL_TIMEOUT; - pACB->glitch_cfg = EATER_25NS; - pACB->pdev = pdev; - - if (!request_region(io_port, shost->n_io_port, "tmscsim")) { - printk(KERN_ERR "DC390: register IO ports error!\n"); - goto out_host_put; - } - - /* Reset Pending INT */ - DC390_read8_(INT_Status, io_port); - - if (request_irq(pdev->irq, do_DC390_Interrupt, IRQF_SHARED, - "tmscsim", pACB)) { - printk(KERN_ERR "DC390: register IRQ error!\n"); - goto out_release_region; - } - - dc390_init_hw(pACB, dc390_adapterCnt); - - dc390_adapterCnt++; - - 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, pACB); - out_release_region: - release_region(io_port, shost->n_io_port); - out_host_put: - scsi_host_put(shost); - out_disable_device: - pci_disable_device(pdev); - out: - return error; -} - -/** - * dc390_remove_one - Called to remove a single instance of the adapter. - * - * @dev: The PCI device to remove. - */ -static void dc390_remove_one(struct pci_dev *dev) -{ - struct Scsi_Host *scsi_host = pci_get_drvdata(dev); - unsigned long iflags; - struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata; - u8 bval; - - scsi_remove_host(scsi_host); - - spin_lock_irqsave(scsi_host->host_lock, iflags); - pACB->ACBFlag = RESET_DEV; - bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; - DC390_write8 (CtrlReg1, bval); /* disable interrupt */ - if (pACB->Gmode2 & RST_SCSI_BUS) - dc390_ResetSCSIBus(pACB); - spin_unlock_irqrestore(scsi_host->host_lock, iflags); - - free_irq(scsi_host->irq, pACB); - release_region(scsi_host->io_port, scsi_host->n_io_port); - - pci_disable_device(dev); - scsi_host_put(scsi_host); -} - -static struct pci_device_id tmscsim_pci_tbl[] = { - { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { } -}; -MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl); - -static struct pci_driver dc390_driver = { - .name = "tmscsim", - .id_table = tmscsim_pci_tbl, - .probe = dc390_probe_one, - .remove = dc390_remove_one, -}; - -static int __init dc390_module_init(void) -{ - if (!disable_clustering) { - printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n"); - printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n"); - } - - if (tmscsim[0] == -1 || tmscsim[0] > 15) { - tmscsim[0] = 7; - tmscsim[1] = 4; - tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_; - tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION; - tmscsim[4] = 2; - tmscsim[5] = 10; - printk (KERN_INFO "DC390: Using safe settings.\n"); - } - - return pci_register_driver(&dc390_driver); -} - -static void __exit dc390_module_exit(void) -{ - pci_unregister_driver(&dc390_driver); -} - -module_init(dc390_module_init); -module_exit(dc390_module_exit); - -#ifndef MODULE -static int __init dc390_setup (char *str) -{ - int ints[8],i, im; - - get_options(str, ARRAY_SIZE(ints), ints); - im = ints[0]; - - if (im > 6) { - printk (KERN_NOTICE "DC390: ignore extra params!\n"); - im = 6; - } - - for (i = 0; i < im; i++) - tmscsim[i] = ints[i+1]; - /* dc390_checkparams (); */ - return 1; -} - -__setup("tmscsim=", dc390_setup); -#endif diff --git a/drivers/scsi/tmscsim.h b/drivers/scsi/tmscsim.h deleted file mode 100644 index c9ad4bb..0000000 --- a/drivers/scsi/tmscsim.h +++ /dev/null @@ -1,549 +0,0 @@ -/*********************************************************************** -;* File Name : TMSCSIM.H * -;* TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter * -;* Device Driver * -;***********************************************************************/ -/* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */ - -#ifndef _TMSCSIM_H -#define _TMSCSIM_H - -#include <linux/types.h> - -#define MAX_ADAPTER_NUM 4 -#define MAX_SG_LIST_BUF 16 /* Not used */ -#define MAX_SCSI_ID 8 -#define MAX_SRB_CNT 50 /* Max number of started commands */ - -#define SEL_TIMEOUT 153 /* 250 ms selection timeout (@ 40 MHz) */ - -/* -;----------------------------------------------------------------------- -; SCSI Request Block -;----------------------------------------------------------------------- -*/ -struct dc390_srb -{ -//u8 CmdBlock[12]; - -struct dc390_srb *pNextSRB; -struct dc390_dcb *pSRBDCB; -struct scsi_cmnd *pcmd; -struct scatterlist *pSegmentList; - -struct scatterlist Segmentx; /* make a one entry of S/G list table */ - -unsigned long SGBusAddr; /*;a segment starting address as seen by AM53C974A - in CPU endianness. We're only getting 32-bit bus - addresses by default */ -unsigned long SGToBeXferLen; /*; to be xfer length */ -unsigned long TotalXferredLen; -unsigned long SavedTotXLen; -unsigned long Saved_Ptr; -u32 SRBState; - -u8 SRBStatus; -u8 SRBFlag; /*; b0-AutoReqSense,b6-Read,b7-write */ - /*; b4-settimeout,b5-Residual valid */ -u8 AdaptStatus; -u8 TargetStatus; - -u8 ScsiPhase; -s8 TagNumber; -u8 SGIndex; -u8 SGcount; - -u8 MsgCnt; -u8 EndMessage; - -u8 MsgInBuf[6]; -u8 MsgOutBuf[6]; - -//u8 IORBFlag; /*;81h-Reset, 2-retry */ -}; - - -/* -;----------------------------------------------------------------------- -; Device Control Block -;----------------------------------------------------------------------- -*/ -struct dc390_dcb -{ -struct dc390_dcb *pNextDCB; -struct dc390_acb *pDCBACB; - -/* Queued SRBs */ -struct dc390_srb *pGoingSRB; -struct dc390_srb *pGoingLast; -struct dc390_srb *pActiveSRB; -u8 GoingSRBCnt; - -u32 TagMask; - -u8 TargetID; /*; SCSI Target ID (SCSI Only) */ -u8 TargetLUN; /*; SCSI Log. Unit (SCSI Only) */ -u8 DevMode; -u8 DCBFlag; - -u8 CtrlR1; -u8 CtrlR3; -u8 CtrlR4; - -u8 SyncMode; /*; 0:async mode */ -u8 NegoPeriod; /*;for nego. */ -u8 SyncPeriod; /*;for reg. */ -u8 SyncOffset; /*;for reg. and nego.(low nibble) */ -}; - - -/* -;----------------------------------------------------------------------- -; Adapter Control Block -;----------------------------------------------------------------------- -*/ -struct dc390_acb -{ -struct Scsi_Host *pScsiHost; -u16 IOPortBase; -u8 IRQLevel; -u8 status; - -u8 SRBCount; -u8 AdapterIndex; /*; nth Adapter this driver */ -u8 DCBCnt; - -u8 TagMaxNum; -u8 ACBFlag; -u8 Gmode2; -u8 scan_devices; - -struct dc390_dcb *pLinkDCB; -struct dc390_dcb *pLastDCB; -struct dc390_dcb *pDCBRunRobin; - -struct dc390_dcb *pActiveDCB; -struct dc390_srb *pFreeSRB; -struct dc390_srb *pTmpSRB; - -u8 msgin123[4]; -u8 Connected; -u8 pad; - -#if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0) -spinlock_t lock; -#endif -u8 sel_timeout; -u8 glitch_cfg; - -u8 MsgLen; -u8 Ignore_IRQ; /* Not used */ - -struct pci_dev *pdev; - -unsigned long last_reset; -unsigned long Cmds; -u32 SelLost; -u32 SelConn; -u32 CmdInQ; -u32 CmdOutOfSRB; - -struct dc390_srb TmpSRB; -struct dc390_srb SRB_array[MAX_SRB_CNT]; /* 50 SRBs */ -}; - - -/*;-----------------------------------------------------------------------*/ - - -#define BIT31 0x80000000 -#define BIT30 0x40000000 -#define BIT29 0x20000000 -#define BIT28 0x10000000 -#define BIT27 0x08000000 -#define BIT26 0x04000000 -#define BIT25 0x02000000 -#define BIT24 0x01000000 -#define BIT23 0x00800000 -#define BIT22 0x00400000 -#define BIT21 0x00200000 -#define BIT20 0x00100000 -#define BIT19 0x00080000 -#define BIT18 0x00040000 -#define BIT17 0x00020000 -#define BIT16 0x00010000 -#define BIT15 0x00008000 -#define BIT14 0x00004000 -#define BIT13 0x00002000 -#define BIT12 0x00001000 -#define BIT11 0x00000800 -#define BIT10 0x00000400 -#define BIT9 0x00000200 -#define BIT8 0x00000100 -#define BIT7 0x00000080 -#define BIT6 0x00000040 -#define BIT5 0x00000020 -#define BIT4 0x00000010 -#define BIT3 0x00000008 -#define BIT2 0x00000004 -#define BIT1 0x00000002 -#define BIT0 0x00000001 - -/*;---UnitCtrlFlag */ -#define UNIT_ALLOCATED BIT0 -#define UNIT_INFO_CHANGED BIT1 -#define FORMATING_MEDIA BIT2 -#define UNIT_RETRY BIT3 - -/*;---UnitFlags */ -#define DASD_SUPPORT BIT0 -#define SCSI_SUPPORT BIT1 -#define ASPI_SUPPORT BIT2 - -/*;----SRBState machine definition */ -#define SRB_FREE 0 -#define SRB_WAIT BIT0 -#define SRB_READY BIT1 -#define SRB_MSGOUT BIT2 /*;arbitration+msg_out 1st byte*/ -#define SRB_MSGIN BIT3 -#define SRB_MSGIN_MULTI BIT4 -#define SRB_COMMAND BIT5 -#define SRB_START_ BIT6 /*;arbitration+msg_out+command_out*/ -#define SRB_DISCONNECT BIT7 -#define SRB_DATA_XFER BIT8 -#define SRB_XFERPAD BIT9 -#define SRB_STATUS BIT10 -#define SRB_COMPLETED BIT11 -#define SRB_ABORT_SENT BIT12 -#define DO_SYNC_NEGO BIT13 -#define SRB_UNEXPECT_RESEL BIT14 - -/*;---SRBstatus */ -#define SRB_OK BIT0 -#define ABORTION BIT1 -#define OVER_RUN BIT2 -#define UNDER_RUN BIT3 -#define PARITY_ERROR BIT4 -#define SRB_ERROR BIT5 - -/*;---ACBFlag */ -#define RESET_DEV BIT0 -#define RESET_DETECT BIT1 -#define RESET_DONE BIT2 - -/*;---DCBFlag */ -#define ABORT_DEV_ BIT0 - -/*;---SRBFlag */ -#define DATAOUT BIT7 -#define DATAIN BIT6 -#define RESIDUAL_VALID BIT5 -#define ENABLE_TIMER BIT4 -#define RESET_DEV0 BIT2 -#define ABORT_DEV BIT1 -#define AUTO_REQSENSE BIT0 - -/*;---Adapter status */ -#define H_STATUS_GOOD 0 -#define H_SEL_TIMEOUT 0x11 -#define H_OVER_UNDER_RUN 0x12 -#define H_UNEXP_BUS_FREE 0x13 -#define H_TARGET_PHASE_F 0x14 -#define H_INVALID_CCB_OP 0x16 -#define H_LINK_CCB_BAD 0x17 -#define H_BAD_TARGET_DIR 0x18 -#define H_DUPLICATE_CCB 0x19 -#define H_BAD_CCB_OR_SG 0x1A -#define H_ABORT 0x0FF - -/* cmd->result */ -#define RES_TARGET 0x000000FF /* Target State */ -#define RES_TARGET_LNX STATUS_MASK /* Only official ... */ -#define RES_ENDMSG 0x0000FF00 /* End Message */ -#define RES_DID 0x00FF0000 /* DID_ codes */ -#define RES_DRV 0xFF000000 /* DRIVER_ codes */ - -#define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)) -#define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)) - -#define SET_RES_TARGET(who, tgt) do { who &= ~RES_TARGET; who |= (int)(tgt); } while (0) -#define SET_RES_TARGET_LNX(who, tgt) do { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; } while (0) -#define SET_RES_MSG(who, msg) do { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; } while (0) -#define SET_RES_DID(who, did) do { who &= ~RES_DID; who |= (int)(did) << 16; } while (0) -#define SET_RES_DRV(who, drv) do { who &= ~RES_DRV; who |= (int)(drv) << 24; } while (0) - -/*;---Sync_Mode */ -#define SYNC_DISABLE 0 -#define SYNC_ENABLE BIT0 -#define SYNC_NEGO_DONE BIT1 -#define WIDE_ENABLE BIT2 /* Not used ;-) */ -#define WIDE_NEGO_DONE BIT3 /* Not used ;-) */ -#define EN_TAG_QUEUEING BIT4 -#define EN_ATN_STOP BIT5 - -#define SYNC_NEGO_OFFSET 15 - -/*;---SCSI bus phase*/ -#define SCSI_DATA_OUT 0 -#define SCSI_DATA_IN 1 -#define SCSI_COMMAND 2 -#define SCSI_STATUS_ 3 -#define SCSI_NOP0 4 -#define SCSI_NOP1 5 -#define SCSI_MSG_OUT 6 -#define SCSI_MSG_IN 7 - -/*;----SCSI MSG BYTE*/ /* see scsi/scsi.h */ /* One is missing ! */ -#define ABORT_TAG 0x0d - -/* - * SISC query queue - */ -typedef struct { - dma_addr_t saved_dma_handle; -} dc390_cmd_scp_t; - -/* -;========================================================== -; EEPROM byte offset -;========================================================== -*/ -typedef struct _EEprom -{ -u8 EE_MODE1; -u8 EE_SPEED; -u8 xx1; -u8 xx2; -} EEprom, *PEEprom; - -#define REAL_EE_ADAPT_SCSI_ID 64 -#define REAL_EE_MODE2 65 -#define REAL_EE_DELAY 66 -#define REAL_EE_TAG_CMD_NUM 67 - -#define EE_ADAPT_SCSI_ID 32 -#define EE_MODE2 33 -#define EE_DELAY 34 -#define EE_TAG_CMD_NUM 35 - -#define EE_LEN 40 - -/*; EE_MODE1 bits definition*/ -#define PARITY_CHK_ BIT0 -#define SYNC_NEGO_ BIT1 -#define EN_DISCONNECT_ BIT2 -#define SEND_START_ BIT3 -#define TAG_QUEUEING_ BIT4 - -/*; EE_MODE2 bits definition*/ -#define MORE2_DRV BIT0 -#define GREATER_1G BIT1 -#define RST_SCSI_BUS BIT2 -#define ACTIVE_NEGATION BIT3 -#define NO_SEEK BIT4 -#define LUN_CHECK BIT5 - -#define ENABLE_CE 1 -#define DISABLE_CE 0 -#define EEPROM_READ 0x80 - -/* -;========================================================== -; AMD 53C974 Registers bit Definition -;========================================================== -*/ -/* -;==================== -; SCSI Register -;==================== -*/ - -/*; Command Reg.(+0CH) (rw) */ -#define DMA_COMMAND BIT7 -#define NOP_CMD 0 -#define CLEAR_FIFO_CMD 1 -#define RST_DEVICE_CMD 2 -#define RST_SCSI_BUS_CMD 3 - -#define INFO_XFER_CMD 0x10 -#define INITIATOR_CMD_CMPLTE 0x11 -#define MSG_ACCEPTED_CMD 0x12 -#define XFER_PAD_BYTE 0x18 -#define SET_ATN_CMD 0x1A -#define RESET_ATN_CMD 0x1B - -#define SEL_WO_ATN 0x41 /* currently not used */ -#define SEL_W_ATN 0x42 -#define SEL_W_ATN_STOP 0x43 -#define SEL_W_ATN3 0x46 -#define EN_SEL_RESEL 0x44 -#define DIS_SEL_RESEL 0x45 /* currently not used */ -#define RESEL 0x40 /* " */ -#define RESEL_ATN3 0x47 /* " */ - -#define DATA_XFER_CMD INFO_XFER_CMD - - -/*; SCSI Status Reg.(+10H) (r) */ -#define INTERRUPT BIT7 -#define ILLEGAL_OP_ERR BIT6 -#define PARITY_ERR BIT5 -#define COUNT_2_ZERO BIT4 -#define GROUP_CODE_VALID BIT3 -#define SCSI_PHASE_MASK (BIT2+BIT1+BIT0) -/* BIT2: MSG phase; BIT1: C/D physe; BIT0: I/O phase */ - -/*; Interrupt Status Reg.(+14H) (r) */ -#define SCSI_RESET BIT7 -#define INVALID_CMD BIT6 -#define DISCONNECTED BIT5 -#define SERVICE_REQUEST BIT4 -#define SUCCESSFUL_OP BIT3 -#define RESELECTED BIT2 -#define SEL_ATTENTION BIT1 -#define SELECTED BIT0 - -/*; Internal State Reg.(+18H) (r) */ -#define SYNC_OFFSET_FLAG BIT3 -#define INTRN_STATE_MASK (BIT2+BIT1+BIT0) -/* 0x04: Sel. successful (w/o stop), 0x01: Sel. successful (w/ stop) */ - -/*; Clock Factor Reg.(+24H) (w) */ -#define CLK_FREQ_40MHZ 0 -#define CLK_FREQ_35MHZ (BIT2+BIT1+BIT0) -#define CLK_FREQ_30MHZ (BIT2+BIT1) -#define CLK_FREQ_25MHZ (BIT2+BIT0) -#define CLK_FREQ_20MHZ BIT2 -#define CLK_FREQ_15MHZ (BIT1+BIT0) -#define CLK_FREQ_10MHZ BIT1 - -/*; Control Reg. 1(+20H) (rw) */ -#define EXTENDED_TIMING BIT7 -#define DIS_INT_ON_SCSI_RST BIT6 -#define PARITY_ERR_REPO BIT4 -#define SCSI_ID_ON_BUS (BIT2+BIT1+BIT0) /* host adapter ID */ - -/*; Control Reg. 2(+2CH) (rw) */ -#define EN_FEATURE BIT6 -#define EN_SCSI2_CMD BIT3 - -/*; Control Reg. 3(+30H) (rw) */ -#define ID_MSG_CHECK BIT7 -#define EN_QTAG_MSG BIT6 -#define EN_GRP2_CMD BIT5 -#define FAST_SCSI BIT4 /* ;10MB/SEC */ -#define FAST_CLK BIT3 /* ;25 - 40 MHZ */ - -/*; Control Reg. 4(+34H) (rw) */ -#define EATER_12NS 0 -#define EATER_25NS BIT7 -#define EATER_35NS BIT6 -#define EATER_0NS (BIT7+BIT6) -#define REDUCED_POWER BIT5 -#define CTRL4_RESERVED BIT4 /* must be 1 acc. to AM53C974.c */ -#define NEGATE_REQACKDATA BIT2 -#define NEGATE_REQACK BIT3 - -#define GLITCH_TO_NS(x) (((~x>>6 & 2) >> 1) | ((x>>6 & 1) << 1 ^ (x>>6 & 2))) -#define NS_TO_GLITCH(y) (((~y<<7) | ~((y<<6) ^ ((y<<5 & 1<<6) | ~0x40))) & 0xc0) - -/* -;==================== -; DMA Register -;==================== -*/ -/*; DMA Command Reg.(+40H) (rw) */ -#define READ_DIRECTION BIT7 -#define WRITE_DIRECTION 0 -#define EN_DMA_INT BIT6 -#define EN_PAGE_INT BIT5 /* page transfer interrupt enable */ -#define MAP_TO_MDL BIT4 -#define DIAGNOSTIC BIT2 -#define DMA_IDLE_CMD 0 -#define DMA_BLAST_CMD BIT0 -#define DMA_ABORT_CMD BIT1 -#define DMA_START_CMD (BIT1+BIT0) - -/*; DMA Status Reg.(+54H) (r) */ -#define PCI_MS_ABORT BIT6 -#define BLAST_COMPLETE BIT5 -#define SCSI_INTERRUPT BIT4 -#define DMA_XFER_DONE BIT3 -#define DMA_XFER_ABORT BIT2 -#define DMA_XFER_ERROR BIT1 -#define POWER_DOWN BIT0 - -/*; DMA SCSI Bus and Ctrl.(+70H) */ -#define EN_INT_ON_PCI_ABORT BIT25 -#define WRT_ERASE_DMA_STAT BIT24 -#define PW_DOWN_CTRL BIT21 -#define SCSI_BUSY BIT20 -#define SCLK BIT19 -#define SCAM BIT18 -#define SCSI_LINES 0x0003ffff - -/* -;========================================================== -; SCSI Chip register address offset -;========================================================== -;Registers are rw unless declared otherwise -*/ -#define CtcReg_Low 0x00 /* r curr. transfer count */ -#define CtcReg_Mid 0x04 /* r */ -#define CtcReg_High 0x38 /* r */ -#define ScsiFifo 0x08 -#define ScsiCmd 0x0C -#define Scsi_Status 0x10 /* r */ -#define INT_Status 0x14 /* r */ -#define Sync_Period 0x18 /* w */ -#define Sync_Offset 0x1C /* w */ -#define Clk_Factor 0x24 /* w */ -#define CtrlReg1 0x20 -#define CtrlReg2 0x2C -#define CtrlReg3 0x30 -#define CtrlReg4 0x34 -#define DMA_Cmd 0x40 -#define DMA_XferCnt 0x44 /* rw starting transfer count (32 bit) */ -#define DMA_XferAddr 0x48 /* rw starting physical address (32 bit) */ -#define DMA_Wk_ByteCntr 0x4C /* r working byte counter */ -#define DMA_Wk_AddrCntr 0x50 /* r working address counter */ -#define DMA_Status 0x54 /* r */ -#define DMA_MDL_Addr 0x58 /* rw starting MDL address */ -#define DMA_Wk_MDL_Cntr 0x5C /* r working MDL counter */ -#define DMA_ScsiBusCtrl 0x70 /* rw SCSI Bus, PCI/DMA Ctrl */ - -#define StcReg_Low CtcReg_Low /* w start transfer count */ -#define StcReg_Mid CtcReg_Mid /* w */ -#define StcReg_High CtcReg_High /* w */ -#define Scsi_Dest_ID Scsi_Status /* w */ -#define Scsi_TimeOut INT_Status /* w */ -#define Intern_State Sync_Period /* r */ -#define Current_Fifo Sync_Offset /* r Curr. FIFO / int. state */ - - -#define DC390_read8(address) \ - (inb (pACB->IOPortBase + (address))) - -#define DC390_read8_(address, base) \ - (inb ((u16)(base) + (address))) - -#define DC390_read16(address) \ - (inw (pACB->IOPortBase + (address))) - -#define DC390_read32(address) \ - (inl (pACB->IOPortBase + (address))) - -#define DC390_write8(address,value) \ - outb ((value), pACB->IOPortBase + (address)) - -#define DC390_write8_(address,value,base) \ - outb ((value), (u16)(base) + (address)) - -#define DC390_write16(address,value) \ - outw ((value), pACB->IOPortBase + (address)) - -#define DC390_write32(address,value) \ - outl ((value), pACB->IOPortBase + (address)) - - -#endif /* _TMSCSIM_H */ -- 1.8.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
