projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 8276b58a KJ |
1 | /* |
| 2 | * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. | |
| 3 | * | |
| 4 | * Based on work by Alan Hourihane and Kars de Jong | |
| 5 | * | |
| 6 | * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> | |
| 7 | */ | |
| 8 | ||
| 9 | #include <linux/module.h> | |
| 10 | #include <linux/blkdev.h> | |
| 11 | #include <linux/device.h> | |
| 12 | #include <linux/platform_device.h> | |
| 13 | #include <linux/init.h> | |
| 14 | #include <linux/interrupt.h> | |
| 15 | #include <asm/bvme6000hw.h> | |
| 16 | #include <scsi/scsi_host.h> | |
| 17 | #include <scsi/scsi_device.h> | |
| 18 | #include <scsi/scsi_transport.h> | |
| 19 | #include <scsi/scsi_transport_spi.h> | |
| 20 | ||
| 21 | #include "53c700.h" | |
| 22 | ||
| 23 | MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>"); | |
| 24 | MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); | |
| 25 | MODULE_LICENSE("GPL"); | |
| 26 | ||
| 27 | static struct scsi_host_template bvme6000_scsi_driver_template = { | |
| 28 | .name = "BVME6000 NCR53c710 SCSI", | |
| 29 | .proc_name = "BVME6000", | |
| 30 | .this_id = 7, | |
| 31 | .module = THIS_MODULE, | |
| 32 | }; | |
| 33 | ||
| 34 | static struct platform_device *bvme6000_scsi_device; | |
| 35 | ||
| 36 | static __devinit int | |
| 37 | bvme6000_probe(struct device *dev) | |
| 38 | { | |
| 39 | struct Scsi_Host * host = NULL; | |
| 40 | struct NCR_700_Host_Parameters *hostdata; | |
| 41 | ||
| 42 | if (!MACH_IS_BVME6000) | |
| 43 | goto out; | |
| 44 | ||
| 45 | hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); | |
| 46 | if (hostdata == NULL) { | |
| 47 | printk(KERN_ERR "bvme6000-scsi: " | |
| 48 | "Failed to allocate host data\n"); | |
| 49 | goto out; | |
| 50 | } | |
| 51 | memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); | |
| 52 | ||
| 53 | /* Fill in the required pieces of hostdata */ | |
| 54 | hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; | |
| 55 | hostdata->clock = 40; /* XXX - depends on the CPU clock! */ | |
| 56 | hostdata->chip710 = 1; | |
| 57 | hostdata->dmode_extra = DMODE_FC2; | |
| 58 | hostdata->dcntl_extra = EA_710; | |
| 59 | hostdata->ctest7_extra = CTEST7_TT1; | |
| 60 | ||
| 61 | /* and register the chip */ | |
| 62 | host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, dev); | |
| 63 | if (!host) { | |
| 64 | printk(KERN_ERR "bvme6000-scsi: No host detected; " | |
| 65 | "board configuration problem?\n"); | |
| 66 | goto out_free; | |
| 67 | } | |
| 68 | host->base = BVME_NCR53C710_BASE; | |
| 69 | host->this_id = 7; | |
| 70 | host->irq = BVME_IRQ_SCSI; | |
| 71 | if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", | |
| 72 | host)) { | |
| 73 | printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); | |
| 74 | goto out_put_host; | |
| 75 | } | |
| 76 | ||
| 77 | scsi_scan_host(host); | |
| 78 | ||
| 79 | return 0; | |
| 80 | ||
| 81 | out_put_host: | |
| 82 | scsi_host_put(host); | |
| 83 | out_free: | |
| 84 | kfree(hostdata); | |
| 85 | out: | |
| 86 | return -ENODEV; | |
| 87 | } | |
| 88 | ||
| 89 | static __devexit int | |
| 90 | bvme6000_device_remove(struct device *dev) | |
| 91 | { | |
| 92 | struct Scsi_Host *host = dev_to_shost(dev); | |
| 93 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); | |
| 94 | ||
| 95 | scsi_remove_host(host); | |
| 96 | NCR_700_release(host); | |
| 97 | kfree(hostdata); | |
| 98 | free_irq(host->irq, host); | |
| 99 | ||
| 100 | return 0; | |
| 101 | } | |
| 102 | ||
| 103 | static struct device_driver bvme6000_scsi_driver = { | |
| 104 | .name = "bvme6000-scsi", | |
| 105 | .bus = &platform_bus_type, | |
| 106 | .probe = bvme6000_probe, | |
| 107 | .remove = __devexit_p(bvme6000_device_remove), | |
| 108 | }; | |
| 109 | ||
| 110 | static int __init bvme6000_scsi_init(void) | |
| 111 | { | |
| 112 | int err; | |
| 113 | ||
| 114 | err = driver_register(&bvme6000_scsi_driver); | |
| 115 | if (err) { | |
| 116 | return err; | |
| 117 | ||
| 118 | bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", | |
| 119 | -1, NULL, 0); | |
| 120 | if (IS_ERR(bvme6000_scsi_device)) { | |
| 121 | driver_unregister(&bvme6000_scsi_driver); | |
| 122 | return PTR_ERR(bvme6000_scsi_device); | |
| 123 | } | |
| 124 | ||
| 125 | return 0; | |
| 126 | } | |
| 127 | ||
| 128 | static void __exit bvme6000_scsi_exit(void) | |
| 129 | { | |
| 130 | platform_device_unregister(bvme6000_scsi_device); | |
| 131 | driver_unregister(&bvme6000_scsi_driver); | |
| 132 | } | |
| 133 | ||
| 134 | module_init(bvme6000_scsi_init); | |
| 135 | module_exit(bvme6000_scsi_exit); |