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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | */ |
| 77 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 78 | 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] | 79 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 80 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
| 81 | unsigned long dma_base = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Bartlomiej Zolnierkiewicz | 1357214 | 2008-07-15 21:21:49 +0200 | [diff] [blame] | 83 | if (hwif->host_flags & IDE_HFLAG_MMIO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | return hwif->dma_base; |
| 85 | |
| 86 | if (hwif->mate && hwif->mate->dma_base) { |
| 87 | dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8); |
| 88 | } else { |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 89 | u8 baridx = (d->host_flags & IDE_HFLAG_CS5520) ? 2 : 4; |
| 90 | |
| 91 | dma_base = pci_resource_start(dev, baridx); |
| 92 | |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 93 | if (dma_base == 0) { |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 94 | printk(KERN_ERR "%s: DMA base is invalid\n", d->name); |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 95 | return 0; |
| 96 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | } |
| 98 | |
Bartlomiej Zolnierkiewicz | aea5d37 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 99 | if (hwif->channel) |
| 100 | dma_base += 8; |
| 101 | |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 102 | return dma_base; |
| 103 | } |
| 104 | EXPORT_SYMBOL_GPL(ide_pci_dma_base); |
| 105 | |
| 106 | int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) |
| 107 | { |
| 108 | u8 dma_stat; |
| 109 | |
| 110 | if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 111 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 113 | if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 114 | ide_pci_clear_simplex(hwif->dma_base, d->name); |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 115 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | } |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 117 | |
| 118 | /* |
| 119 | * If the device claims "simplex" DMA, this means that only one of |
| 120 | * the two interfaces can be trusted with DMA at any point in time |
| 121 | * (so we should enable DMA only on one of the two interfaces). |
| 122 | * |
| 123 | * FIXME: At this point we haven't probed the drives so we can't make |
| 124 | * the appropriate decision. Really we should defer this problem until |
| 125 | * we tune the drive then try to grab DMA ownership if we want to be |
| 126 | * the DMA end. This has to be become dynamic to handle hot-plug. |
| 127 | */ |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 128 | dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 129 | if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { |
| 130 | printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 131 | return -1; |
Bartlomiej Zolnierkiewicz | 8ac2b42a | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 132 | } |
| 133 | out: |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 134 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | } |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 136 | EXPORT_SYMBOL_GPL(ide_pci_check_simplex); |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 137 | |
| 138 | /* |
| 139 | * Set up BM-DMA capability (PnP BIOS should have done this) |
| 140 | */ |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 141 | int ide_pci_set_master(struct pci_dev *dev, const char *name) |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 142 | { |
| 143 | u16 pcicmd; |
| 144 | |
| 145 | pci_read_config_word(dev, PCI_COMMAND, &pcicmd); |
| 146 | |
| 147 | if ((pcicmd & PCI_COMMAND_MASTER) == 0) { |
| 148 | pci_set_master(dev); |
| 149 | |
| 150 | if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || |
| 151 | (pcicmd & PCI_COMMAND_MASTER) == 0) { |
| 152 | printk(KERN_ERR "%s: error updating PCICMD on %s\n", |
| 153 | name, pci_name(dev)); |
| 154 | return -EIO; |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | return 0; |
| 159 | } |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 160 | EXPORT_SYMBOL_GPL(ide_pci_set_master); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ |
| 162 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 163 | 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] | 164 | { |
Bartlomiej Zolnierkiewicz | bde07e5 | 2007-10-20 00:32:36 +0200 | [diff] [blame] | 165 | printk(KERN_INFO "%s: IDE controller (0x%04x:0x%04x rev 0x%02x) at " |
| 166 | " PCI slot %s\n", d->name, dev->vendor, dev->device, |
| 167 | dev->revision, pci_name(dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | EXPORT_SYMBOL_GPL(ide_setup_pci_noise); |
| 170 | |
| 171 | |
| 172 | /** |
| 173 | * ide_pci_enable - do PCI enables |
| 174 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 175 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | * |
| 177 | * 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] | 178 | * but if that fails then we only need IO space. The PCI code should |
| 179 | * have setup the proper resources for us already for controllers in |
| 180 | * legacy mode. |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 181 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | * Returns zero on success or an error code |
| 183 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 184 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 185 | 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] | 186 | { |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 187 | int ret, bars; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
| 189 | if (pci_enable_device(dev)) { |
Benjamin Herrenschmidt | 0948391 | 2007-12-20 15:28:09 +1100 | [diff] [blame] | 190 | ret = pci_enable_device_io(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | if (ret < 0) { |
| 192 | printk(KERN_WARNING "%s: (ide_setup_pci_device:) " |
| 193 | "Could not enable device.\n", d->name); |
| 194 | goto out; |
| 195 | } |
| 196 | printk(KERN_WARNING "%s: BIOS configuration fixed.\n", d->name); |
| 197 | } |
| 198 | |
| 199 | /* |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 200 | * assume all devices can do 32-bit DMA for now, we can add |
| 201 | * a DMA mask field to the struct ide_port_info if we need it |
| 202 | * (or let lower level driver set the DMA mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | */ |
| 204 | ret = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
| 205 | if (ret < 0) { |
| 206 | printk(KERN_ERR "%s: can't set dma mask\n", d->name); |
| 207 | goto out; |
| 208 | } |
| 209 | |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 210 | if (d->host_flags & IDE_HFLAG_SINGLE) |
| 211 | bars = (1 << 2) - 1; |
| 212 | else |
| 213 | bars = (1 << 4) - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 215 | if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { |
| 216 | if (d->host_flags & IDE_HFLAG_CS5520) |
| 217 | bars |= (1 << 2); |
| 218 | else |
| 219 | bars |= (1 << 4); |
| 220 | } |
| 221 | |
| 222 | ret = pci_request_selected_regions(dev, bars, d->name); |
| 223 | if (ret < 0) |
| 224 | printk(KERN_ERR "%s: can't reserve resources\n", d->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | out: |
| 226 | return ret; |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * ide_pci_configure - configure an unconfigured device |
| 231 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 232 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | * |
| 234 | * Enable and configure the PCI device we have been passed. |
| 235 | * Returns zero on success or an error code. |
| 236 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 237 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 238 | 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] | 239 | { |
| 240 | u16 pcicmd = 0; |
| 241 | /* |
| 242 | * PnP BIOS was *supposed* to have setup this device, but we |
| 243 | * can do it ourselves, so long as the BIOS has assigned an IRQ |
| 244 | * (or possibly the device is using a "legacy header" for IRQs). |
| 245 | * Maybe the user deliberately *disabled* the device, |
| 246 | * but we'll eventually ignore it again if no drives respond. |
| 247 | */ |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 248 | if (ide_setup_pci_baseregs(dev, d->name) || |
| 249 | pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | printk(KERN_INFO "%s: device disabled (BIOS)\n", d->name); |
| 251 | return -ENODEV; |
| 252 | } |
| 253 | if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { |
| 254 | printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); |
| 255 | return -EIO; |
| 256 | } |
| 257 | if (!(pcicmd & PCI_COMMAND_IO)) { |
| 258 | printk(KERN_ERR "%s: unable to enable IDE controller\n", d->name); |
| 259 | return -ENXIO; |
| 260 | } |
| 261 | return 0; |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * ide_pci_check_iomem - check a register is I/O |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 266 | * @dev: PCI device |
| 267 | * @d: IDE port info |
| 268 | * @bar: BAR number |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | * |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 270 | * Checks if a BAR is configured and points to MMIO space. If so, |
| 271 | * return an error code. Otherwise return 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 273 | |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 274 | static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, |
| 275 | int bar) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | { |
| 277 | ulong flags = pci_resource_flags(dev, bar); |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 278 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | /* Unconfigured ? */ |
| 280 | if (!flags || pci_resource_len(dev, bar) == 0) |
| 281 | return 0; |
| 282 | |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 283 | /* I/O space */ |
| 284 | if (flags & IORESOURCE_IO) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | return 0; |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 286 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | /* Bad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | return -EINVAL; |
| 289 | } |
| 290 | |
| 291 | /** |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 292 | * ide_hw_configure - configure a hw_regs_t instance |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | * @dev: PCI device holding interface |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 294 | * @d: IDE port info |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 295 | * @port: port number |
| 296 | * @irq: PCI IRQ |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 297 | * @hw: hw_regs_t instance corresponding to this port |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | * |
| 299 | * Perform the initial set up for the hardware interface structure. This |
| 300 | * is done per interface port rather than per PCI device. There may be |
| 301 | * more than one port per device. |
| 302 | * |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 303 | * Returns zero on success or an error code. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 305 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 306 | static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, |
| 307 | unsigned int port, int irq, hw_regs_t *hw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | { |
| 309 | unsigned long ctl = 0, base = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 311 | if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 312 | if (ide_pci_check_iomem(dev, d, 2 * port) || |
| 313 | ide_pci_check_iomem(dev, d, 2 * port + 1)) { |
| 314 | printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " |
| 315 | "as MEM for port %d!\n", d->name, port); |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 316 | return -EINVAL; |
Sergei Shtylyov | 1baccff | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 317 | } |
Paolo Ciarrocchi | 846bb88 | 2008-04-26 17:36:39 +0200 | [diff] [blame] | 318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | ctl = pci_resource_start(dev, 2*port+1); |
| 320 | base = pci_resource_start(dev, 2*port); |
Bartlomiej Zolnierkiewicz | c1da678 | 2008-07-16 20:33:41 +0200 | [diff] [blame] | 321 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | /* Use default values */ |
| 323 | ctl = port ? 0x374 : 0x3f4; |
| 324 | base = port ? 0x170 : 0x1f0; |
| 325 | } |
Bartlomiej Zolnierkiewicz | bad7c82 | 2008-04-26 17:36:31 +0200 | [diff] [blame] | 326 | |
Bartlomiej Zolnierkiewicz | c1da678 | 2008-07-16 20:33:41 +0200 | [diff] [blame] | 327 | if (!base || !ctl) { |
| 328 | printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", |
| 329 | d->name, port); |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 330 | return -EINVAL; |
Bartlomiej Zolnierkiewicz | c1da678 | 2008-07-16 20:33:41 +0200 | [diff] [blame] | 331 | } |
| 332 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 333 | memset(hw, 0, sizeof(*hw)); |
| 334 | hw->irq = irq; |
| 335 | hw->dev = &dev->dev; |
| 336 | hw->chipset = d->chipset ? d->chipset : ide_pci; |
| 337 | ide_std_init_ports(hw, base, ctl | 2); |
| 338 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 339 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | } |
| 341 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 342 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | /** |
| 344 | * ide_hwif_setup_dma - configure DMA interface |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 345 | * @hwif: IDE interface |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 346 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | * |
| 348 | * Set up the DMA base for the interface. Enable the master bits as |
| 349 | * necessary and attempt to bring the device DMA into a ready to use |
| 350 | * state |
| 351 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 352 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 353 | 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] | 354 | { |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 355 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Bartlomiej Zolnierkiewicz | 47b6878 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 357 | if ((d->host_flags & IDE_HFLAG_NO_AUTODMA) == 0 || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && |
| 359 | (dev->class & 0x80))) { |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 360 | unsigned long base = ide_pci_dma_base(hwif, d); |
Bartlomiej Zolnierkiewicz | 23658f8 | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 361 | |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 362 | if (base == 0) |
| 363 | return -1; |
| 364 | |
| 365 | hwif->dma_base = base; |
| 366 | |
| 367 | if (ide_pci_check_simplex(hwif, d) < 0) |
| 368 | return -1; |
| 369 | |
| 370 | if (ide_pci_set_master(dev, d->name) < 0) |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 371 | return -1; |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 372 | |
Bartlomiej Zolnierkiewicz | 1357214 | 2008-07-15 21:21:49 +0200 | [diff] [blame] | 373 | if (hwif->host_flags & IDE_HFLAG_MMIO) |
Bartlomiej Zolnierkiewicz | 63158d5 | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 374 | printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); |
| 375 | else |
| 376 | printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", |
| 377 | hwif->name, base, base + 7); |
| 378 | |
| 379 | hwif->extra_base = base + (hwif->channel ? 8 : 16); |
| 380 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 381 | if (ide_allocate_dma_engine(hwif)) |
| 382 | return -1; |
| 383 | |
Bartlomiej Zolnierkiewicz | 81e8d5a | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 384 | hwif->dma_ops = &sff_dma_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | } |
Bartlomiej Zolnierkiewicz | d54452f | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 386 | |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 387 | return 0; |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 388 | } |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 389 | #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | /** |
| 392 | * ide_setup_pci_controller - set up IDE PCI |
| 393 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 394 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | * @noisy: verbose flag |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | * |
| 397 | * Set up the PCI and controller side of the IDE interface. This brings |
| 398 | * up the PCI side of the device, checks that the device is enabled |
| 399 | * and enables it if need be |
| 400 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 401 | |
Bartlomiej Zolnierkiewicz | a95925a | 2008-07-24 22:53:11 +0200 | [diff] [blame] | 402 | static int ide_setup_pci_controller(struct pci_dev *dev, |
| 403 | const struct ide_port_info *d, int noisy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | { |
| 405 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | u16 pcicmd; |
| 407 | |
| 408 | if (noisy) |
| 409 | ide_setup_pci_noise(dev, d); |
| 410 | |
| 411 | ret = ide_pci_enable(dev, d); |
| 412 | if (ret < 0) |
| 413 | goto out; |
| 414 | |
| 415 | ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); |
| 416 | if (ret < 0) { |
| 417 | printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); |
| 418 | goto out; |
| 419 | } |
| 420 | if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ |
| 421 | ret = ide_pci_configure(dev, d); |
| 422 | if (ret < 0) |
| 423 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | printk(KERN_INFO "%s: device enabled (Linux)\n", d->name); |
| 425 | } |
| 426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | out: |
| 428 | return ret; |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * ide_pci_setup_ports - configure ports/devices on PCI IDE |
| 433 | * @dev: PCI device |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 434 | * @d: IDE port info |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | * @pciirq: IRQ line |
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, |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 449 | int pciirq, 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | u8 tmp; |
| 453 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | /* |
| 455 | * Set up the IDE ports |
| 456 | */ |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 457 | |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 458 | for (port = 0; port < channels; ++port) { |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 459 | const ide_pci_enablebit_t *e = &(d->enablebits[port]); |
| 460 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 462 | (tmp & e->mask) != e->val)) { |
| 463 | printk(KERN_INFO "%s: IDE port disabled\n", d->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | continue; /* port not enabled */ |
Bartlomiej Zolnierkiewicz | cf6e854 | 2007-10-20 00:32:29 +0200 | [diff] [blame] | 465 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 467 | if (ide_hw_configure(dev, d, port, pciirq, hw + port)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | continue; |
| 469 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 470 | *(hws + port) = hw + port; |
Bartlomiej Zolnierkiewicz | 1ebf749 | 2008-02-02 19:56:30 +0100 | [diff] [blame] | 471 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | EXPORT_SYMBOL_GPL(ide_pci_setup_ports); |
| 474 | |
| 475 | /* |
| 476 | * ide_setup_pci_device() looks at the primary/secondary interfaces |
| 477 | * on a PCI IDE device and, if they are enabled, prepares the IDE driver |
| 478 | * for use with them. This generic code works for most PCI chipsets. |
| 479 | * |
| 480 | * One thing that is not standardized is the location of the |
| 481 | * primary/secondary interface "enable/disable" bits. For chipsets that |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 482 | * we "know" about, this information is in the struct ide_port_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | * for all other chipsets, we just assume both interfaces are enabled. |
| 484 | */ |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 485 | static int do_ide_setup_pci_device(struct pci_dev *dev, |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 486 | const struct ide_port_info *d, |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 487 | u8 noisy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | int pciirq, ret; |
| 490 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | /* |
| 492 | * Can we trust the reported IRQ? |
| 493 | */ |
| 494 | pciirq = dev->irq; |
| 495 | |
Bartlomiej Zolnierkiewicz | 708e5f9 | 2008-07-24 22:53:11 +0200 | [diff] [blame] | 496 | /* |
| 497 | * This allows offboard ide-pci cards the enable a BIOS, |
| 498 | * verify interrupt settings of split-mirror pci-config |
| 499 | * space, place chipset into init-mode, and/or preserve |
| 500 | * an interrupt if the card is not native ide support. |
| 501 | */ |
| 502 | ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0; |
| 503 | if (ret < 0) |
| 504 | goto out; |
| 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | /* Is it an "IDE storage" device in non-PCI mode? */ |
| 507 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) { |
| 508 | if (noisy) |
| 509 | printk(KERN_INFO "%s: not 100%% native mode: " |
| 510 | "will probe irqs later\n", d->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | pciirq = ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | } else if (!pciirq) { |
| 513 | if (noisy) |
| 514 | printk(KERN_WARNING "%s: bad irq (%d): will probe later\n", |
| 515 | d->name, pciirq); |
| 516 | pciirq = 0; |
| 517 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | if (noisy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | printk(KERN_INFO "%s: 100%% native mode on irq %d\n", |
| 520 | d->name, pciirq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | } |
| 522 | |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 523 | ret = pciirq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | out: |
| 525 | return ret; |
| 526 | } |
| 527 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 528 | int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d, |
| 529 | void *priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | { |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 531 | struct ide_host *host; |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 532 | hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | int ret; |
| 534 | |
Bartlomiej Zolnierkiewicz | a742d6c | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 535 | ret = ide_setup_pci_controller(dev, d, 1); |
| 536 | if (ret < 0) |
| 537 | goto out; |
| 538 | |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 539 | ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]); |
| 540 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 541 | host = ide_host_alloc(d, hws); |
| 542 | if (host == NULL) { |
| 543 | ret = -ENOMEM; |
| 544 | goto out; |
| 545 | } |
| 546 | |
| 547 | host->dev[0] = &dev->dev; |
| 548 | |
| 549 | host->host_priv = priv; |
| 550 | |
| 551 | if (priv) |
| 552 | pci_set_drvdata(dev, host); |
| 553 | |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 554 | ret = do_ide_setup_pci_device(dev, d, 1); |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 555 | if (ret < 0) |
| 556 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 558 | /* fixup IRQ */ |
| 559 | hw[1].irq = hw[0].irq = ret; |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 560 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 561 | ret = ide_host_register(host, d, hws); |
| 562 | if (ret) |
| 563 | ide_host_free(host); |
Bartlomiej Zolnierkiewicz | a742d6c | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 564 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | return ret; |
| 566 | } |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 567 | EXPORT_SYMBOL_GPL(ide_pci_init_one); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 569 | int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2, |
| 570 | const struct ide_port_info *d, void *priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { |
| 572 | struct pci_dev *pdev[] = { dev1, dev2 }; |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 573 | struct ide_host *host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | int ret, i; |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 575 | hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
| 577 | for (i = 0; i < 2; i++) { |
Bartlomiej Zolnierkiewicz | a742d6c | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 578 | ret = ide_setup_pci_controller(pdev[i], d, !i); |
| 579 | if (ret < 0) |
| 580 | goto out; |
| 581 | |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 582 | ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]); |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 583 | } |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 584 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 585 | host = ide_host_alloc(d, hws); |
| 586 | if (host == NULL) { |
| 587 | ret = -ENOMEM; |
| 588 | goto out; |
| 589 | } |
| 590 | |
| 591 | host->dev[0] = &dev1->dev; |
| 592 | host->dev[1] = &dev2->dev; |
| 593 | |
| 594 | host->host_priv = priv; |
| 595 | |
| 596 | if (priv) { |
| 597 | pci_set_drvdata(pdev[0], host); |
| 598 | pci_set_drvdata(pdev[1], host); |
| 599 | } |
| 600 | |
| 601 | for (i = 0; i < 2; i++) { |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 602 | ret = do_ide_setup_pci_device(pdev[i], d, !i); |
| 603 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | /* |
| 605 | * FIXME: Mom, mom, they stole me the helper function to undo |
| 606 | * do_ide_setup_pci_device() on the first device! |
| 607 | */ |
| 608 | if (ret < 0) |
| 609 | goto out; |
Bartlomiej Zolnierkiewicz | 51d87ed | 2008-07-23 19:55:49 +0200 | [diff] [blame] | 610 | |
Bartlomiej Zolnierkiewicz | 8c2eece | 2008-07-24 22:53:12 +0200 | [diff] [blame] | 611 | /* fixup IRQ */ |
| 612 | hw[i*2 + 1].irq = hw[i*2].irq = ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | } |
| 614 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 615 | ret = ide_host_register(host, d, hws); |
| 616 | if (ret) |
| 617 | ide_host_free(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | out: |
| 619 | return ret; |
| 620 | } |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 621 | EXPORT_SYMBOL_GPL(ide_pci_init_two); |