| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux. |
| 3 | * |
| 4 | * Based on work by Alan Hourihane |
| 5 | */ |
| 6 | #include <linux/types.h> |
| 7 | #include <linux/mm.h> |
| 8 | #include <linux/blkdev.h> |
| 9 | #include <linux/sched.h> |
| 10 | #include <linux/version.h> |
| 11 | |
| 12 | #include <asm/page.h> |
| 13 | #include <asm/pgtable.h> |
| 14 | #include <asm/mvme16xhw.h> |
| 15 | #include <asm/irq.h> |
| 16 | |
| 17 | #include "scsi.h" |
| 18 | #include <scsi/scsi_host.h> |
| 19 | #include "53c7xx.h" |
| 20 | #include "mvme16x.h" |
| 21 | |
| 22 | #include<linux/stat.h> |
| 23 | |
| 24 | |
| 25 | int mvme16x_scsi_detect(Scsi_Host_Template *tpnt) |
| 26 | { |
| 27 | static unsigned char called = 0; |
| 28 | int clock; |
| 29 | long long options; |
| 30 | |
| 31 | if (!MACH_IS_MVME16x) |
| 32 | return 0; |
| 33 | if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) { |
| 34 | printk ("SCSI detection disabled, SCSI chip not present\n"); |
| 35 | return 0; |
| 36 | } |
| 37 | if (called) |
| 38 | return 0; |
| 39 | |
| 40 | tpnt->proc_name = "MVME16x"; |
| 41 | |
| 42 | options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; |
| 43 | |
| 44 | clock = 66000000; /* 66MHz SCSI Clock */ |
| 45 | |
| 46 | ncr53c7xx_init(tpnt, 0, 710, (unsigned long)0xfff47000, |
| 47 | 0, MVME16x_IRQ_SCSI, DMA_NONE, |
| 48 | options, clock); |
| 49 | called = 1; |
| 50 | return 1; |
| 51 | } |
| 52 | |
| 53 | static int mvme16x_scsi_release(struct Scsi_Host *shost) |
| 54 | { |
| 55 | if (shost->irq) |
| 56 | free_irq(shost->irq, NULL); |
| 57 | if (shost->dma_channel != 0xff) |
| 58 | free_dma(shost->dma_channel); |
| 59 | if (shost->io_port && shost->n_io_port) |
| 60 | release_region(shost->io_port, shost->n_io_port); |
| 61 | scsi_unregister(shost); |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | static Scsi_Host_Template driver_template = { |
| 66 | .name = "MVME16x NCR53c710 SCSI", |
| 67 | .detect = mvme16x_scsi_detect, |
| 68 | .release = mvme16x_scsi_release, |
| 69 | .queuecommand = NCR53c7xx_queue_command, |
| 70 | .abort = NCR53c7xx_abort, |
| 71 | .reset = NCR53c7xx_reset, |
| 72 | .can_queue = 24, |
| 73 | .this_id = 7, |
| 74 | .sg_tablesize = 63, |
| 75 | .cmd_per_lun = 3, |
| 76 | .use_clustering = DISABLE_CLUSTERING |
| 77 | }; |
| 78 | |
| 79 | |
| 80 | #include "scsi_module.c" |