Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 2 | * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> |
| 3 | * Copyright (C) 1995-1998 Mark Lord |
| 4 | * Copyright (C) 2007 Bartlomiej Zolnierkiewicz |
Bartlomiej Zolnierkiewicz | 58f189f | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 5 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * May be copied or modified under the terms of the GNU General Public License |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <linux/types.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/pci.h> |
| 12 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/interrupt.h> |
| 14 | #include <linux/ide.h> |
| 15 | #include <linux/dma-mapping.h> |
| 16 | |
| 17 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | /** |
| 20 | * ide_setup_pci_baseregs - place a PCI IDE controller native |
| 21 | * @dev: PCI device of interface to switch native |
| 22 | * @name: Name of interface |
| 23 | * |
| 24 | * We attempt to place the PCI interface into PCI native mode. If |
| 25 | * we succeed the BARs are ok and the controller is in PCI mode. |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 26 | * Returns 0 on success or an errno code. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | * |
| 28 | * FIXME: if we program the interface and then fail to set the BARS |
| 29 | * we don't switch it back to legacy mode. Do we actually care ?? |
| 30 | */ |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 31 | |
| 32 | static int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | { |
| 34 | u8 progif = 0; |
| 35 | |
| 36 | /* |
| 37 | * Place both IDE interfaces into PCI "native" mode: |
| 38 | */ |
| 39 | if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || |
| 40 | (progif & 5) != 5) { |
| 41 | if ((progif & 0xa) != 0xa) { |
| 42 | printk(KERN_INFO "%s: device not capable of full " |
| 43 | "native PCI mode\n", name); |
| 44 | return -EOPNOTSUPP; |
| 45 | } |
| 46 | printk("%s: placing both ports into native PCI mode\n", name); |
| 47 | (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5); |
| 48 | if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || |
| 49 | (progif & 5) != 5) { |
| 50 | printk(KERN_ERR "%s: rewrite of PROGIF failed, wanted " |
| 51 | "0x%04x, got 0x%04x\n", |
| 52 | name, progif|5, progif); |
| 53 | return -EOPNOTSUPP; |
| 54 | } |
| 55 | } |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 60 | static void ide_pci_clear_simplex(unsigned long dma_base, const char *name) |
| 61 | { |
| 62 | u8 dma_stat = inb(dma_base + 2); |
| 63 | |
| 64 | outb(dma_stat & 0x60, dma_base + 2); |
| 65 | dma_stat = inb(dma_base + 2); |
| 66 | if (dma_stat & 0x80) |
| 67 | printk(KERN_INFO "%s: simplex device: DMA forced\n", name); |
| 68 | } |
| 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | /** |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 71 | * ide_pci_dma_base - setup BMIBA |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 72 | * @hwif: IDE interface |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 73 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | * |
Bartlomiej Zolnierkiewicz | c58e79d | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 75 | * Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space. |
| 76 | * Where a device has a partner that is already in DMA mode we check |
| 77 | * and enforce IDE simplex rules. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | */ |
| 79 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 80 | unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 82 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
| 83 | unsigned long dma_base = 0; |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 84 | u8 dma_stat = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
Bartlomiej Zolnierkiewicz | 1357214 | 2008-07-15 21:21:49 +0200 | [diff] [blame] | 86 | if (hwif->host_flags & IDE_HFLAG_MMIO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | return hwif->dma_base; |
| 88 | |
| 89 | if (hwif->mate && hwif->mate->dma_base) { |
| 90 | dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8); |
| 91 | } else { |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 92 | u8 baridx = (d->host_flags & IDE_HFLAG_CS5520) ? 2 : 4; |
| 93 | |
| 94 | dma_base = pci_resource_start(dev, baridx); |
| 95 | |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 96 | if (dma_base == 0) { |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 97 | printk(KERN_ERR "%s: DMA base is invalid\n", d->name); |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 98 | return 0; |
| 99 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | } |
| 101 | |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 102 | if (hwif->channel) |
| 103 | dma_base += 8; |
| 104 | |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 105 | if (d->host_flags & IDE_HFLAG_CS5520) |
| 106 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 108 | if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { |
| 109 | ide_pci_clear_simplex(dma_base, d->name); |
| 110 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | } |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 112 | |
| 113 | /* |
| 114 | * If the device claims "simplex" DMA, this means that only one of |
| 115 | * the two interfaces can be trusted with DMA at any point in time |
| 116 | * (so we should enable DMA only on one of the two interfaces). |
| 117 | * |
| 118 | * FIXME: At this point we haven't probed the drives so we can't make |
| 119 | * the appropriate decision. Really we should defer this problem until |
| 120 | * we tune the drive then try to grab DMA ownership if we want to be |
| 121 | * the DMA end. This has to be become dynamic to handle hot-plug. |
| 122 | */ |
| 123 | dma_stat = hwif->INB(dma_base + 2); |
| 124 | if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { |
| 125 | printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); |
| 126 | dma_base = 0; |
| 127 | } |
| 128 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | return dma_base; |
| 130 | } |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 131 | EXPORT_SYMBOL_GPL(ide_pci_dma_base); |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 132 | |
| 133 | /* |
| 134 | * Set up BM-DMA capability (PnP BIOS should have done this) |
| 135 | */ |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 136 | int ide_pci_set_master(struct pci_dev *dev, const char *name) |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 137 | { |
| 138 | u16 pcicmd; |
| 139 | |
| 140 | pci_read_config_word(dev, PCI_COMMAND, &pcicmd); |
| 141 | |
| 142 | if ((pcicmd & PCI_COMMAND_MASTER) == 0) { |
| 143 | pci_set_master(dev); |
| 144 | |
| 145 | if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || |
| 146 | (pcicmd & PCI_COMMAND_MASTER) == 0) { |
| 147 | printk(KERN_ERR "%s: error updating PCICMD on %s\n", |
| 148 | name, pci_name(dev)); |
| 149 | return -EIO; |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | return 0; |
| 154 | } |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 155 | EXPORT_SYMBOL_GPL(ide_pci_set_master); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ |
| 157 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 158 | void ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | { |
Bartlomiej Zolnierkiewicz | bde07e5 | 2007-10-20 00:32:36 +0200 | [diff] [blame] | 160 | printk(KERN_INFO "%s: IDE controller (0x%04x:0x%04x rev 0x%02x) at " |
| 161 | " PCI slot %s\n", d->name, dev->vendor, dev->device, |
| 162 | dev->revision, pci_name(dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | EXPORT_SYMBOL_GPL(ide_setup_pci_noise); |
| 165 | |
| 166 | |
| 167 | /** |
| 168 | * ide_pci_enable - do PCI enables |
| 169 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 170 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | * |
| 172 | * Enable the IDE PCI device. We attempt to enable the device in full |
Benjamin Herrenschmidt | 0948391 | 2007-12-20 15:28:09 +1100 | [diff] [blame] | 173 | * but if that fails then we only need IO space. The PCI code should |
| 174 | * have setup the proper resources for us already for controllers in |
| 175 | * legacy mode. |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 176 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | * Returns zero on success or an error code |
| 178 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 179 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 180 | static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | { |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 182 | int ret, bars; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
| 184 | if (pci_enable_device(dev)) { |
Benjamin Herrenschmidt | 0948391 | 2007-12-20 15:28:09 +1100 | [diff] [blame] | 185 | ret = pci_enable_device_io(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | if (ret < 0) { |
| 187 | printk(KERN_WARNING "%s: (ide_setup_pci_device:) " |
| 188 | "Could not enable device.\n", d->name); |
| 189 | goto out; |
| 190 | } |
| 191 | printk(KERN_WARNING "%s: BIOS configuration fixed.\n", d->name); |
| 192 | } |
| 193 | |
| 194 | /* |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 195 | * assume all devices can do 32-bit DMA for now, we can add |
| 196 | * a DMA mask field to the struct ide_port_info if we need it |
| 197 | * (or let lower level driver set the DMA mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | */ |
| 199 | ret = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
| 200 | if (ret < 0) { |
| 201 | printk(KERN_ERR "%s: can't set dma mask\n", d->name); |
| 202 | goto out; |
| 203 | } |
| 204 | |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 205 | if (d->host_flags & IDE_HFLAG_SINGLE) |
| 206 | bars = (1 << 2) - 1; |
| 207 | else |
| 208 | bars = (1 << 4) - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 210 | if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { |
| 211 | if (d->host_flags & IDE_HFLAG_CS5520) |
| 212 | bars |= (1 << 2); |
| 213 | else |
| 214 | bars |= (1 << 4); |
| 215 | } |
| 216 | |
| 217 | ret = pci_request_selected_regions(dev, bars, d->name); |
| 218 | if (ret < 0) |
| 219 | printk(KERN_ERR "%s: can't reserve resources\n", d->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | out: |
| 221 | return ret; |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * ide_pci_configure - configure an unconfigured device |
| 226 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 227 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | * |
| 229 | * Enable and configure the PCI device we have been passed. |
| 230 | * Returns zero on success or an error code. |
| 231 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 232 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 233 | static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | { |
| 235 | u16 pcicmd = 0; |
| 236 | /* |
| 237 | * PnP BIOS was *supposed* to have setup this device, but we |
| 238 | * can do it ourselves, so long as the BIOS has assigned an IRQ |
| 239 | * (or possibly the device is using a "legacy header" for IRQs). |
| 240 | * Maybe the user deliberately *disabled* the device, |
| 241 | * but we'll eventually ignore it again if no drives respond. |
| 242 | */ |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 243 | if (ide_setup_pci_baseregs(dev, d->name) || |
| 244 | pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | printk(KERN_INFO "%s: device disabled (BIOS)\n", d->name); |
| 246 | return -ENODEV; |
| 247 | } |
| 248 | if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { |
| 249 | printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); |
| 250 | return -EIO; |
| 251 | } |
| 252 | if (!(pcicmd & PCI_COMMAND_IO)) { |
| 253 | printk(KERN_ERR "%s: unable to enable IDE controller\n", d->name); |
| 254 | return -ENXIO; |
| 255 | } |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * ide_pci_check_iomem - check a register is I/O |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 261 | * @dev: PCI device |
| 262 | * @d: IDE port info |
| 263 | * @bar: BAR number |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | * |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 265 | * Checks if a BAR is configured and points to MMIO space. If so, |
| 266 | * return an error code. Otherwise return 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 268 | |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 269 | static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, |
| 270 | int bar) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | { |
| 272 | ulong flags = pci_resource_flags(dev, bar); |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | /* Unconfigured ? */ |
| 275 | if (!flags || pci_resource_len(dev, bar) == 0) |
| 276 | return 0; |
| 277 | |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 278 | /* I/O space */ |
| 279 | if (flags & IORESOURCE_IO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | return 0; |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | /* Bad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | return -EINVAL; |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * ide_hwif_configure - configure an IDE interface |
| 288 | * @dev: PCI device holding interface |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 289 | * @d: IDE port info |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 290 | * @port: port number |
| 291 | * @irq: PCI IRQ |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 292 | * @hw: hw_regs_t instance corresponding to this port |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | * |
| 294 | * Perform the initial set up for the hardware interface structure. This |
| 295 | * is done per interface port rather than per PCI device. There may be |
| 296 | * more than one port per device. |
| 297 | * |
| 298 | * Returns the new hardware interface structure, or NULL on a failure |
| 299 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 300 | |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 301 | static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, |
| 302 | const struct ide_port_info *d, |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 303 | unsigned int port, int irq, |
| 304 | hw_regs_t *hw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | { |
| 306 | unsigned long ctl = 0, base = 0; |
| 307 | ide_hwif_t *hwif; |
| 308 | |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 309 | if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 310 | if (ide_pci_check_iomem(dev, d, 2 * port) || |
| 311 | ide_pci_check_iomem(dev, d, 2 * port + 1)) { |
| 312 | printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " |
| 313 | "as MEM for port %d!\n", d->name, port); |
| 314 | return NULL; |
| 315 | } |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 316 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | ctl = pci_resource_start(dev, 2*port+1); |
| 318 | base = pci_resource_start(dev, 2*port); |
Bartlomiej Zolnierkiewicz | c1da678 | 2008-07-16 20:33:41 +0200 | [diff] [blame] | 319 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | /* Use default values */ |
| 321 | ctl = port ? 0x374 : 0x3f4; |
| 322 | base = port ? 0x170 : 0x1f0; |
| 323 | } |
Bartlomiej Zolnierkiewicz | bad7c82 | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 324 | |
Bartlomiej Zolnierkiewicz | c1da678 | 2008-07-16 20:33:41 +0200 | [diff] [blame] | 325 | if (!base || !ctl) { |
| 326 | printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", |
| 327 | d->name, port); |
| 328 | return NULL; |
| 329 | } |
| 330 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 331 | memset(hw, 0, sizeof(*hw)); |
| 332 | hw->irq = irq; |
| 333 | hw->dev = &dev->dev; |
| 334 | hw->chipset = d->chipset ? d->chipset : ide_pci; |
| 335 | ide_std_init_ports(hw, base, ctl | 2); |
| 336 | |
Bartlomiej Zolnierkiewicz | fe80b93 | 2008-04-26 17:36:36 +0200 | [diff] [blame] | 337 | hwif = ide_find_port_slot(d); |
Bartlomiej Zolnierkiewicz | eb3aff5 | 2008-07-16 20:33:42 +0200 | [diff] [blame] | 338 | if (hwif == NULL) |
Bartlomiej Zolnierkiewicz | bad7c82 | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 339 | return NULL; |
Bartlomiej Zolnierkiewicz | 9239b33 | 2007-10-20 00:32:33 +0200 | [diff] [blame] | 340 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 341 | hwif->chipset = hw->chipset; |
Bartlomiej Zolnierkiewicz | 79127c3 | 2008-01-26 20:13:08 +0100 | [diff] [blame] | 342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | return hwif; |
| 344 | } |
| 345 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 346 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /** |
| 348 | * ide_hwif_setup_dma - configure DMA interface |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 349 | * @hwif: IDE interface |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 350 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | * |
| 352 | * Set up the DMA base for the interface. Enable the master bits as |
| 353 | * necessary and attempt to bring the device DMA into a ready to use |
| 354 | * state |
| 355 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 356 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 357 | int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | { |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 359 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
Bartlomiej Zolnierkiewicz | 47b6878 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 361 | if ((d->host_flags & IDE_HFLAG_NO_AUTODMA) == 0 || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && |
| 363 | (dev->class & 0x80))) { |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 364 | unsigned long base = ide_pci_dma_base(hwif, d); |
Bartlomiej Zolnierkiewicz | 23658f8 | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 365 | |
Bartlomiej Zolnierkiewicz | 63158d5 | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 366 | if (base == 0 || ide_pci_set_master(dev, d->name) < 0) |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 367 | return -1; |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 368 | |
Bartlomiej Zolnierkiewicz | 1357214 | 2008-07-15 21:21:49 +0200 | [diff] [blame] | 369 | if (hwif->host_flags & IDE_HFLAG_MMIO) |
Bartlomiej Zolnierkiewicz | 63158d5 | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 370 | printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); |
| 371 | else |
| 372 | printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", |
| 373 | hwif->name, base, base + 7); |
| 374 | |
| 375 | hwif->extra_base = base + (hwif->channel ? 8 : 16); |
| 376 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 377 | if (ide_allocate_dma_engine(hwif)) |
| 378 | return -1; |
| 379 | |
Bartlomiej Zolnierkiewicz | 81e8d5a | 2008-07-23 19:55:51 +0200 | [diff] [blame^] | 380 | hwif->dma_base = base; |
| 381 | |
| 382 | hwif->dma_ops = &sff_dma_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | } |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 384 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 385 | return 0; |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 386 | } |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 387 | #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | |
| 389 | /** |
| 390 | * ide_setup_pci_controller - set up IDE PCI |
| 391 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 392 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | * @noisy: verbose flag |
| 394 | * @config: returned as 1 if we configured the hardware |
| 395 | * |
| 396 | * Set up the PCI and controller side of the IDE interface. This brings |
| 397 | * up the PCI side of the device, checks that the device is enabled |
| 398 | * and enables it if need be |
| 399 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 400 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 401 | static int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_info *d, int noisy, int *config) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | { |
| 403 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | u16 pcicmd; |
| 405 | |
| 406 | if (noisy) |
| 407 | ide_setup_pci_noise(dev, d); |
| 408 | |
| 409 | ret = ide_pci_enable(dev, d); |
| 410 | if (ret < 0) |
| 411 | goto out; |
| 412 | |
| 413 | ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); |
| 414 | if (ret < 0) { |
| 415 | printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); |
| 416 | goto out; |
| 417 | } |
| 418 | if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ |
| 419 | ret = ide_pci_configure(dev, d); |
| 420 | if (ret < 0) |
| 421 | goto out; |
| 422 | *config = 1; |
| 423 | printk(KERN_INFO "%s: device enabled (Linux)\n", d->name); |
| 424 | } |
| 425 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | out: |
| 427 | return ret; |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * ide_pci_setup_ports - configure ports/devices on PCI IDE |
| 432 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 433 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | * @pciirq: IRQ line |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 435 | * @idx: ATA index table to update |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 436 | * @hw: hw_regs_t instances corresponding to this PCI IDE device |
| 437 | * @hws: hw_regs_t pointers table to update |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | * |
| 439 | * Scan the interfaces attached to this device and do any |
| 440 | * necessary per port setup. Attach the devices and ask the |
| 441 | * generic DMA layer to do its work for us. |
| 442 | * |
| 443 | * Normally called automaticall from do_ide_pci_setup_device, |
| 444 | * but is also used directly as a helper function by some controllers |
| 445 | * where the chipset setup is not the default PCI IDE one. |
| 446 | */ |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 447 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 448 | void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, |
| 449 | int pciirq, u8 *idx, hw_regs_t *hw, hw_regs_t **hws) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | { |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 451 | int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 452 | ide_hwif_t *hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | u8 tmp; |
| 454 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | /* |
| 456 | * Set up the IDE ports |
| 457 | */ |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 458 | |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 459 | for (port = 0; port < channels; ++port) { |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 460 | const ide_pci_enablebit_t *e = &(d->enablebits[port]); |
| 461 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 463 | (tmp & e->mask) != e->val)) { |
| 464 | printk(KERN_INFO "%s: IDE port disabled\n", d->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | continue; /* port not enabled */ |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 466 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 468 | hwif = ide_hwif_configure(dev, d, port, pciirq, hw + port); |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 469 | if (hwif == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | continue; |
| 471 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 472 | *(hws + port) = hw + port; |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 473 | *(idx + port) = hwif->index; |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 474 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | EXPORT_SYMBOL_GPL(ide_pci_setup_ports); |
| 477 | |
| 478 | /* |
| 479 | * ide_setup_pci_device() looks at the primary/secondary interfaces |
| 480 | * on a PCI IDE device and, if they are enabled, prepares the IDE driver |
| 481 | * for use with them. This generic code works for most PCI chipsets. |
| 482 | * |
| 483 | * One thing that is not standardized is the location of the |
| 484 | * primary/secondary interface "enable/disable" bits. For chipsets that |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 485 | * we "know" about, this information is in the struct ide_port_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | * for all other chipsets, we just assume both interfaces are enabled. |
| 487 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 488 | static int do_ide_setup_pci_device(struct pci_dev *dev, |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 489 | const struct ide_port_info *d, |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 490 | u8 noisy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | int tried_config = 0; |
| 493 | int pciirq, ret; |
| 494 | |
| 495 | ret = ide_setup_pci_controller(dev, d, noisy, &tried_config); |
| 496 | if (ret < 0) |
| 497 | goto out; |
| 498 | |
| 499 | /* |
| 500 | * Can we trust the reported IRQ? |
| 501 | */ |
| 502 | pciirq = dev->irq; |
| 503 | |
| 504 | /* Is it an "IDE storage" device in non-PCI mode? */ |
| 505 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) { |
| 506 | if (noisy) |
| 507 | printk(KERN_INFO "%s: not 100%% native mode: " |
| 508 | "will probe irqs later\n", d->name); |
| 509 | /* |
| 510 | * This allows offboard ide-pci cards the enable a BIOS, |
| 511 | * verify interrupt settings of split-mirror pci-config |
| 512 | * space, place chipset into init-mode, and/or preserve |
| 513 | * an interrupt if the card is not native ide support. |
| 514 | */ |
| 515 | ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0; |
| 516 | if (ret < 0) |
| 517 | goto out; |
| 518 | pciirq = ret; |
| 519 | } else if (tried_config) { |
| 520 | if (noisy) |
| 521 | printk(KERN_INFO "%s: will probe irqs later\n", d->name); |
| 522 | pciirq = 0; |
| 523 | } else if (!pciirq) { |
| 524 | if (noisy) |
| 525 | printk(KERN_WARNING "%s: bad irq (%d): will probe later\n", |
| 526 | d->name, pciirq); |
| 527 | pciirq = 0; |
| 528 | } else { |
| 529 | if (d->init_chipset) { |
| 530 | ret = d->init_chipset(dev, d->name); |
| 531 | if (ret < 0) |
| 532 | goto out; |
| 533 | } |
| 534 | if (noisy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | printk(KERN_INFO "%s: 100%% native mode on irq %d\n", |
| 536 | d->name, pciirq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | } |
| 538 | |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 539 | ret = pciirq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | out: |
| 541 | return ret; |
| 542 | } |
| 543 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 544 | int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | { |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 546 | u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 547 | hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | int ret; |
| 549 | |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 550 | ret = do_ide_setup_pci_device(dev, d, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 552 | if (ret >= 0) { |
| 553 | /* FIXME: silent failure can happen */ |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 554 | ide_pci_setup_ports(dev, d, ret, &idx[0], &hw[0], &hws[0]); |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 555 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 556 | ide_device_add(idx, d, hws); |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 557 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | return ret; |
| 560 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | EXPORT_SYMBOL_GPL(ide_setup_pci_device); |
| 562 | |
| 563 | int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 564 | const struct ide_port_info *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | { |
| 566 | struct pci_dev *pdev[] = { dev1, dev2 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | int ret, i; |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 568 | hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 569 | u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
| 571 | for (i = 0; i < 2; i++) { |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 572 | ret = do_ide_setup_pci_device(pdev[i], d, !i); |
| 573 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | /* |
| 575 | * FIXME: Mom, mom, they stole me the helper function to undo |
| 576 | * do_ide_setup_pci_device() on the first device! |
| 577 | */ |
| 578 | if (ret < 0) |
| 579 | goto out; |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 580 | |
| 581 | /* FIXME: silent failure can happen */ |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 582 | ide_pci_setup_ports(pdev[i], d, ret, &idx[i*2], &hw[i*2], |
| 583 | &hws[i*2]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | } |
| 585 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 586 | ide_device_add(idx, d, hws); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | out: |
| 588 | return ret; |
| 589 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | EXPORT_SYMBOL_GPL(ide_setup_pci_devices); |