Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * ata_generic.c - Generic PATA/SATA controller driver. |
Alan Cox | ab77163 | 2008-10-27 15:09:10 +0000 | [diff] [blame] | 3 | * Copyright 2005 Red Hat Inc, all rights reserved. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 4 | * |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 5 | * Elements from ide/pci/generic.c |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 6 | * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> |
| 7 | * Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com> |
| 8 | * |
| 9 | * May be copied or modified under the terms of the GNU General Public License |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 10 | * |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 11 | * Driver for PCI IDE interfaces implementing the standard bus mastering |
| 12 | * interface functionality. This assumes the BIOS did the drive set up and |
| 13 | * tuning for us. By default we do not grab all IDE class devices as they |
| 14 | * may have other drivers or need fixups to avoid problems. Instead we keep |
| 15 | * a default list of stuff without documentation/driver that appears to |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 16 | * work. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 17 | */ |
| 18 | |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/pci.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/blkdev.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <scsi/scsi_host.h> |
| 26 | #include <linux/libata.h> |
| 27 | |
| 28 | #define DRV_NAME "ata_generic" |
Alan Cox | 5e8f757 | 2008-01-19 16:07:58 +0000 | [diff] [blame] | 29 | #define DRV_VERSION "0.2.15" |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 30 | |
| 31 | /* |
| 32 | * A generic parallel ATA driver using libata |
| 33 | */ |
| 34 | |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 35 | enum { |
| 36 | ATA_GEN_CLASS_MATCH = (1 << 0), |
| 37 | ATA_GEN_FORCE_DMA = (1 << 1), |
| 38 | }; |
| 39 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 40 | /** |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 41 | * generic_set_mode - mode setting |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 42 | * @link: link to set up |
Alan | b229a7b | 2007-01-24 11:47:07 +0000 | [diff] [blame] | 43 | * @unused: returned device on error |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 44 | * |
| 45 | * Use a non standard set_mode function. We don't want to be tuned. |
| 46 | * The BIOS configured everything. Our job is not to fiddle. We |
| 47 | * read the dma enabled bits from the PCI configuration of the device |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 48 | * and respect them. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 49 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 50 | |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 51 | static int generic_set_mode(struct ata_link *link, struct ata_device **unused) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 52 | { |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 53 | struct ata_port *ap = link->ap; |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 54 | const struct pci_device_id *id = ap->host->private_data; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 55 | int dma_enabled = 0; |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 56 | struct ata_device *dev; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 57 | |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 58 | if (id->driver_data & ATA_GEN_FORCE_DMA) { |
| 59 | dma_enabled = 0xff; |
| 60 | } else if (ap->ioaddr.bmdma_addr) { |
| 61 | /* Bits 5 and 6 indicate if DMA is active on master/slave */ |
Alan Cox | d6f4d5e | 2007-07-03 15:11:30 +0100 | [diff] [blame] | 62 | dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 63 | } |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 64 | |
Tejun Heo | 1eca436 | 2008-11-03 20:03:17 +0900 | [diff] [blame] | 65 | ata_for_each_dev(dev, link, ENABLED) { |
Tejun Heo | f8ab6d8 | 2007-11-27 19:43:38 +0900 | [diff] [blame] | 66 | /* We don't really care */ |
| 67 | dev->pio_mode = XFER_PIO_0; |
| 68 | dev->dma_mode = XFER_MW_DMA_0; |
| 69 | /* We do need the right mode information for DMA or PIO |
| 70 | and this comes from the current configuration flags */ |
| 71 | if (dma_enabled & (1 << (5 + dev->devno))) { |
Tejun Heo | 9d3501a | 2007-11-27 19:43:41 +0900 | [diff] [blame] | 72 | unsigned int xfer_mask = ata_id_xfermask(dev->id); |
| 73 | const char *name; |
| 74 | |
| 75 | if (xfer_mask & (ATA_MASK_MWDMA | ATA_MASK_UDMA)) |
| 76 | name = ata_mode_string(xfer_mask); |
| 77 | else { |
| 78 | /* SWDMA perhaps? */ |
| 79 | name = "DMA"; |
| 80 | xfer_mask |= ata_xfer_mode2mask(XFER_MW_DMA_0); |
| 81 | } |
| 82 | |
| 83 | ata_dev_printk(dev, KERN_INFO, "configured for %s\n", |
| 84 | name); |
| 85 | |
| 86 | dev->xfer_mode = ata_xfer_mask2mode(xfer_mask); |
| 87 | dev->xfer_shift = ata_xfer_mode2shift(dev->xfer_mode); |
Tejun Heo | f8ab6d8 | 2007-11-27 19:43:38 +0900 | [diff] [blame] | 88 | dev->flags &= ~ATA_DFLAG_PIO; |
| 89 | } else { |
| 90 | ata_dev_printk(dev, KERN_INFO, "configured for PIO\n"); |
| 91 | dev->xfer_mode = XFER_PIO_0; |
| 92 | dev->xfer_shift = ATA_SHIFT_PIO; |
| 93 | dev->flags |= ATA_DFLAG_PIO; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 94 | } |
| 95 | } |
Alan | b229a7b | 2007-01-24 11:47:07 +0000 | [diff] [blame] | 96 | return 0; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | static struct scsi_host_template generic_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 100 | ATA_BMDMA_SHT(DRV_NAME), |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 101 | }; |
| 102 | |
| 103 | static struct ata_port_operations generic_port_ops = { |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 104 | .inherits = &ata_bmdma_port_ops, |
Alan Cox | eb4a2c7 | 2007-04-11 00:04:20 +0100 | [diff] [blame] | 105 | .cable_detect = ata_cable_unknown, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 106 | .set_mode = generic_set_mode, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 107 | }; |
| 108 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 109 | static int all_generic_ide; /* Set to claim all devices */ |
| 110 | |
| 111 | /** |
| 112 | * ata_generic_init - attach generic IDE |
| 113 | * @dev: PCI device found |
| 114 | * @id: match entry |
| 115 | * |
| 116 | * Called each time a matching IDE interface is found. We check if the |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 117 | * interface is one we wish to claim and if so we perform any chip |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 118 | * specific hacks then let the ATA layer do the heavy lifting. |
| 119 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 120 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 121 | static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 122 | { |
| 123 | u16 command; |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 124 | static const struct ata_port_info info = { |
Jeff Garzik | 1d2808f | 2007-05-28 06:59:48 -0400 | [diff] [blame] | 125 | .flags = ATA_FLAG_SLAVE_POSS, |
Erik Inge Bolsø | 14bdef9 | 2009-03-14 21:38:24 +0100 | [diff] [blame] | 126 | .pio_mask = ATA_PIO4, |
| 127 | .mwdma_mask = ATA_MWDMA2, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 128 | .udma_mask = ATA_UDMA5, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 129 | .port_ops = &generic_port_ops |
| 130 | }; |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 131 | const struct ata_port_info *ppi[] = { &info, NULL }; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 132 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 133 | /* Don't use the generic entry unless instructed to do so */ |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 134 | if ((id->driver_data & ATA_GEN_CLASS_MATCH) && all_generic_ide == 0) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 135 | return -ENODEV; |
| 136 | |
| 137 | /* Devices that need care */ |
| 138 | if (dev->vendor == PCI_VENDOR_ID_UMC && |
| 139 | dev->device == PCI_DEVICE_ID_UMC_UM8886A && |
| 140 | (!(PCI_FUNC(dev->devfn) & 1))) |
| 141 | return -ENODEV; |
| 142 | |
| 143 | if (dev->vendor == PCI_VENDOR_ID_OPTI && |
| 144 | dev->device == PCI_DEVICE_ID_OPTI_82C558 && |
| 145 | (!(PCI_FUNC(dev->devfn) & 1))) |
| 146 | return -ENODEV; |
| 147 | |
| 148 | /* Don't re-enable devices in generic mode or we will break some |
| 149 | motherboards with disabled and unused IDE controllers */ |
| 150 | pci_read_config_word(dev, PCI_COMMAND, &command); |
| 151 | if (!(command & PCI_COMMAND_IO)) |
| 152 | return -ENODEV; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 153 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 154 | if (dev->vendor == PCI_VENDOR_ID_AL) |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 155 | ata_pci_bmdma_clear_simplex(dev); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 156 | |
Alan Cox | 05177f1 | 2008-05-02 15:13:39 -0700 | [diff] [blame] | 157 | if (dev->vendor == PCI_VENDOR_ID_ATI) { |
| 158 | int rc = pcim_enable_device(dev); |
| 159 | if (rc < 0) |
| 160 | return rc; |
| 161 | pcim_pin_device(dev); |
| 162 | } |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 163 | return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, (void *)id, 0); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | static struct pci_device_id ata_generic[] = { |
| 167 | { PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), }, |
| 168 | { PCI_DEVICE(PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), }, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 169 | { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F), }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 170 | { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A), }, |
| 171 | { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF), }, |
| 172 | { PCI_DEVICE(PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), }, |
| 173 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), }, |
| 174 | { PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), }, |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 175 | { PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), |
| 176 | .driver_data = ATA_GEN_FORCE_DMA }, |
Tejun Heo | c6353b4 | 2010-06-17 11:42:22 +0200 | [diff] [blame] | 177 | /* |
| 178 | * For some reason, MCP89 on MacBook 7,1 doesn't work with |
| 179 | * ahci, use ata_generic instead. |
| 180 | */ |
| 181 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA, |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 182 | PCI_VENDOR_ID_APPLE, 0xcb89, |
| 183 | .driver_data = ATA_GEN_FORCE_DMA }, |
Alan Cox | 8e182a9 | 2009-11-30 13:23:11 +0000 | [diff] [blame] | 184 | #if !defined(CONFIG_PATA_TOSHIBA) && !defined(CONFIG_PATA_TOSHIBA_MODULE) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 185 | { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), }, |
| 186 | { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), }, |
Alan Cox | 8e182a9 | 2009-11-30 13:23:11 +0000 | [diff] [blame] | 187 | { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), }, |
| 188 | { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), }, |
| 189 | #endif |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 190 | /* Must come last. If you add entries adjust this table appropriately */ |
Tejun Heo | 1529c69 | 2010-06-22 12:27:26 +0200 | [diff] [blame] | 191 | { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL), |
| 192 | .driver_data = ATA_GEN_CLASS_MATCH }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 193 | { 0, }, |
| 194 | }; |
| 195 | |
| 196 | static struct pci_driver ata_generic_pci_driver = { |
| 197 | .name = DRV_NAME, |
| 198 | .id_table = ata_generic, |
| 199 | .probe = ata_generic_init_one, |
Alan | 30ced0f | 2006-11-22 16:57:36 +0000 | [diff] [blame] | 200 | .remove = ata_pci_remove_one, |
Tejun Heo | 438ac6d | 2007-03-02 17:31:26 +0900 | [diff] [blame] | 201 | #ifdef CONFIG_PM |
Alan | 30ced0f | 2006-11-22 16:57:36 +0000 | [diff] [blame] | 202 | .suspend = ata_pci_device_suspend, |
| 203 | .resume = ata_pci_device_resume, |
Tejun Heo | 438ac6d | 2007-03-02 17:31:26 +0900 | [diff] [blame] | 204 | #endif |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 205 | }; |
| 206 | |
| 207 | static int __init ata_generic_init(void) |
| 208 | { |
Henrik Kretzschmar | 3f03c67 | 2006-10-10 14:28:12 -0700 | [diff] [blame] | 209 | return pci_register_driver(&ata_generic_pci_driver); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | |
| 213 | static void __exit ata_generic_exit(void) |
| 214 | { |
| 215 | pci_unregister_driver(&ata_generic_pci_driver); |
| 216 | } |
| 217 | |
| 218 | |
| 219 | MODULE_AUTHOR("Alan Cox"); |
| 220 | MODULE_DESCRIPTION("low-level driver for generic ATA"); |
| 221 | MODULE_LICENSE("GPL"); |
| 222 | MODULE_DEVICE_TABLE(pci, ata_generic); |
| 223 | MODULE_VERSION(DRV_VERSION); |
| 224 | |
| 225 | module_init(ata_generic_init); |
| 226 | module_exit(ata_generic_exit); |
| 227 | |
| 228 | module_param(all_generic_ide, int, 0); |