Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * EHCI HCD (Host Controller Driver) PCI Bus Glue. |
| 3 | * |
| 4 | * Copyright (c) 2000-2004 by David Brownell |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software Foundation, |
| 18 | * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | */ |
| 20 | |
| 21 | #ifndef CONFIG_PCI |
| 22 | #error "This file is PCI bus glue. CONFIG_PCI must be defined." |
| 23 | #endif |
| 24 | |
| 25 | /*-------------------------------------------------------------------------*/ |
| 26 | |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 27 | /* called after powerup, by probe or system-pm "wakeup" */ |
| 28 | static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev) |
| 29 | { |
| 30 | u32 temp; |
| 31 | int retval; |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 32 | |
| 33 | /* optional debug port, normally in the first BAR */ |
| 34 | temp = pci_find_capability(pdev, 0x0a); |
| 35 | if (temp) { |
| 36 | pci_read_config_dword(pdev, temp, &temp); |
| 37 | temp >>= 16; |
| 38 | if ((temp & (3 << 13)) == (1 << 13)) { |
| 39 | temp &= 0x1fff; |
| 40 | ehci->debug = ehci_to_hcd(ehci)->regs + temp; |
| 41 | temp = readl(&ehci->debug->control); |
| 42 | ehci_info(ehci, "debug port %d%s\n", |
| 43 | HCS_DEBUG_PORT(ehci->hcs_params), |
| 44 | (temp & DBGP_ENABLED) |
| 45 | ? " IN USE" |
| 46 | : ""); |
| 47 | if (!(temp & DBGP_ENABLED)) |
| 48 | ehci->debug = NULL; |
| 49 | } |
| 50 | } |
| 51 | |
David Brownell | 401feaf | 2006-01-24 07:15:30 -0800 | [diff] [blame] | 52 | /* we expect static quirk code to handle the "extended capabilities" |
| 53 | * (currently just BIOS handoff) allowed starting with EHCI 0.96 |
| 54 | */ |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 55 | |
| 56 | /* PCI Memory-Write-Invalidate cycle support is optional (uncommon) */ |
| 57 | retval = pci_set_mwi(pdev); |
| 58 | if (!retval) |
| 59 | ehci_dbg(ehci, "MWI active\n"); |
| 60 | |
| 61 | ehci_port_power(ehci, 0); |
| 62 | |
| 63 | return 0; |
| 64 | } |
| 65 | |
David Brownell | 8926bfa | 2005-11-28 08:40:38 -0800 | [diff] [blame] | 66 | /* called during probe() after chip reset completes */ |
| 67 | static int ehci_pci_setup(struct usb_hcd *hcd) |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 68 | { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 69 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); |
| 70 | struct pci_dev *pdev = to_pci_dev(hcd->self.controller); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 71 | u32 temp; |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 72 | int retval; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 73 | |
| 74 | ehci->caps = hcd->regs; |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 75 | ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); |
| 76 | dbg_hcs_params(ehci, "reset"); |
| 77 | dbg_hcc_params(ehci, "reset"); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 78 | |
| 79 | /* cache this readonly data; minimize chip reads */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 80 | ehci->hcs_params = readl(&ehci->caps->hcs_params); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 81 | |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 82 | retval = ehci_halt(ehci); |
| 83 | if (retval) |
| 84 | return retval; |
| 85 | |
David Brownell | 8926bfa | 2005-11-28 08:40:38 -0800 | [diff] [blame] | 86 | /* data structure init */ |
| 87 | retval = ehci_init(hcd); |
| 88 | if (retval) |
| 89 | return retval; |
| 90 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 91 | /* NOTE: only the parts below this line are PCI-specific */ |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 92 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 93 | switch (pdev->vendor) { |
| 94 | case PCI_VENDOR_ID_TDI: |
| 95 | if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { |
| 96 | ehci->is_tdi_rh_tt = 1; |
| 97 | tdi_reset(ehci); |
| 98 | } |
| 99 | break; |
| 100 | case PCI_VENDOR_ID_AMD: |
| 101 | /* AMD8111 EHCI doesn't work, according to AMD errata */ |
| 102 | if (pdev->device == 0x7463) { |
| 103 | ehci_info(ehci, "ignoring AMD8111 (errata)\n"); |
David Brownell | 8926bfa | 2005-11-28 08:40:38 -0800 | [diff] [blame] | 104 | retval = -EIO; |
| 105 | goto done; |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 106 | } |
| 107 | break; |
| 108 | case PCI_VENDOR_ID_NVIDIA: |
David Brownell | f8aeb3b | 2006-01-20 13:55:14 -0800 | [diff] [blame] | 109 | switch (pdev->device) { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 110 | /* NVidia reports that certain chips don't handle |
| 111 | * QH, ITD, or SITD addresses above 2GB. (But TD, |
| 112 | * data buffer, and periodic schedule are normal.) |
| 113 | */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 114 | case 0x003c: /* MCP04 */ |
| 115 | case 0x005b: /* CK804 */ |
| 116 | case 0x00d8: /* CK8 */ |
| 117 | case 0x00e8: /* CK8S */ |
| 118 | if (pci_set_consistent_dma_mask(pdev, |
| 119 | DMA_31BIT_MASK) < 0) |
| 120 | ehci_warn(ehci, "can't enable NVidia " |
| 121 | "workaround for >2GB RAM\n"); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 122 | break; |
David Brownell | f8aeb3b | 2006-01-20 13:55:14 -0800 | [diff] [blame] | 123 | /* Some NForce2 chips have problems with selective suspend; |
| 124 | * fixed in newer silicon. |
| 125 | */ |
| 126 | case 0x0068: |
| 127 | pci_read_config_dword(pdev, PCI_REVISION_ID, &temp); |
| 128 | if ((temp & 0xff) < 0xa4) |
| 129 | ehci->no_selective_suspend = 1; |
| 130 | break; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 131 | } |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 132 | break; |
| 133 | } |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 134 | |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 135 | if (ehci_is_TDI(ehci)) |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 136 | ehci_reset(ehci); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 137 | |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 138 | /* at least the Genesys GL880S needs fixup here */ |
| 139 | temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params); |
| 140 | temp &= 0x0f; |
| 141 | if (temp && HCS_N_PORTS(ehci->hcs_params) > temp) { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 142 | ehci_dbg(ehci, "bogus port configuration: " |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 143 | "cc=%d x pcc=%d < ports=%d\n", |
| 144 | HCS_N_CC(ehci->hcs_params), |
| 145 | HCS_N_PCC(ehci->hcs_params), |
| 146 | HCS_N_PORTS(ehci->hcs_params)); |
| 147 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 148 | switch (pdev->vendor) { |
| 149 | case 0x17a0: /* GENESYS */ |
| 150 | /* GL880S: should be PORTS=2 */ |
| 151 | temp |= (ehci->hcs_params & ~0xf); |
| 152 | ehci->hcs_params = temp; |
| 153 | break; |
| 154 | case PCI_VENDOR_ID_NVIDIA: |
| 155 | /* NF4: should be PCC=10 */ |
| 156 | break; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 157 | } |
| 158 | } |
| 159 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 160 | /* Serial Bus Release Number is at PCI 0x60 offset */ |
| 161 | pci_read_config_byte(pdev, 0x60, &ehci->sbrn); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 162 | |
David Brownell | 2c1c3c4 | 2005-11-07 15:24:46 -0800 | [diff] [blame] | 163 | /* Workaround current PCI init glitch: wakeup bits aren't |
| 164 | * being set from PCI PM capability. |
| 165 | */ |
| 166 | if (!device_can_wakeup(&pdev->dev)) { |
| 167 | u16 port_wake; |
| 168 | |
| 169 | pci_read_config_word(pdev, 0x62, &port_wake); |
| 170 | if (port_wake & 0x0001) |
| 171 | device_init_wakeup(&pdev->dev, 1); |
| 172 | } |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 173 | |
David Brownell | f8aeb3b | 2006-01-20 13:55:14 -0800 | [diff] [blame] | 174 | #ifdef CONFIG_USB_SUSPEND |
| 175 | /* REVISIT: the controller works fine for wakeup iff the root hub |
| 176 | * itself is "globally" suspended, but usbcore currently doesn't |
| 177 | * understand such things. |
| 178 | * |
| 179 | * System suspend currently expects to be able to suspend the entire |
| 180 | * device tree, device-at-a-time. If we failed selective suspend |
| 181 | * reports, system suspend would fail; so the root hub code must claim |
| 182 | * success. That's lying to usbcore, and it matters for for runtime |
| 183 | * PM scenarios with selective suspend and remote wakeup... |
| 184 | */ |
| 185 | if (ehci->no_selective_suspend && device_can_wakeup(&pdev->dev)) |
| 186 | ehci_warn(ehci, "selective suspend/wakeup unavailable\n"); |
| 187 | #endif |
| 188 | |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 189 | retval = ehci_pci_reinit(ehci, pdev); |
David Brownell | 8926bfa | 2005-11-28 08:40:38 -0800 | [diff] [blame] | 190 | done: |
| 191 | return retval; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | /*-------------------------------------------------------------------------*/ |
| 195 | |
| 196 | #ifdef CONFIG_PM |
| 197 | |
| 198 | /* suspend/resume, section 4.3 */ |
| 199 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 200 | /* These routines rely on the PCI bus glue |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 201 | * to handle powerdown and wakeup, and currently also on |
| 202 | * transceivers that don't need any software attention to set up |
| 203 | * the right sort of wakeup. |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 204 | * Also they depend on separate root hub suspend/resume. |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 205 | */ |
| 206 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 207 | static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message) |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 208 | { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 209 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); |
Benjamin Herrenschmidt | 8de9840 | 2005-11-25 09:59:46 +1100 | [diff] [blame] | 210 | unsigned long flags; |
| 211 | int rc = 0; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 212 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 213 | if (time_before(jiffies, ehci->next_statechange)) |
| 214 | msleep(10); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 215 | |
Benjamin Herrenschmidt | 8de9840 | 2005-11-25 09:59:46 +1100 | [diff] [blame] | 216 | /* Root hub was already suspended. Disable irq emission and |
| 217 | * mark HW unaccessible, bail out if RH has been resumed. Use |
| 218 | * the spinlock to properly synchronize with possible pending |
| 219 | * RH suspend or resume activity. |
| 220 | * |
| 221 | * This is still racy as hcd->state is manipulated outside of |
| 222 | * any locks =P But that will be a different fix. |
| 223 | */ |
| 224 | spin_lock_irqsave (&ehci->lock, flags); |
| 225 | if (hcd->state != HC_STATE_SUSPENDED) { |
| 226 | rc = -EINVAL; |
| 227 | goto bail; |
| 228 | } |
| 229 | writel (0, &ehci->regs->intr_enable); |
| 230 | (void)readl(&ehci->regs->intr_enable); |
| 231 | |
| 232 | clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); |
| 233 | bail: |
| 234 | spin_unlock_irqrestore (&ehci->lock, flags); |
| 235 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 236 | // could save FLADJ in case of Vaux power loss |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 237 | // ... we'd only use it to handle clock skew |
| 238 | |
Benjamin Herrenschmidt | 8de9840 | 2005-11-25 09:59:46 +1100 | [diff] [blame] | 239 | return rc; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 240 | } |
| 241 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 242 | static int ehci_pci_resume(struct usb_hcd *hcd) |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 243 | { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 244 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 245 | unsigned port; |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 246 | struct pci_dev *pdev = to_pci_dev(hcd->self.controller); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 247 | int retval = -EINVAL; |
| 248 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 249 | // maybe restore FLADJ |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 250 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 251 | if (time_before(jiffies, ehci->next_statechange)) |
| 252 | msleep(100); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 253 | |
Benjamin Herrenschmidt | 8de9840 | 2005-11-25 09:59:46 +1100 | [diff] [blame] | 254 | /* Mark hardware accessible again as we are out of D3 state by now */ |
| 255 | set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); |
| 256 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 257 | /* If CF is clear, we lost PCI Vaux power and need to restart. */ |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 258 | if (readl(&ehci->regs->configured_flag) != FLAG_CF) |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 259 | goto restart; |
| 260 | |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 261 | /* If any port is suspended (or owned by the companion), |
| 262 | * we know we can/must resume the HC (and mustn't reset it). |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 263 | * We just defer that to the root hub code. |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 264 | */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 265 | for (port = HCS_N_PORTS(ehci->hcs_params); port > 0; ) { |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 266 | u32 status; |
| 267 | port--; |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 268 | status = readl(&ehci->regs->port_status [port]); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 269 | if (!(status & PORT_POWER)) |
| 270 | continue; |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 271 | if (status & (PORT_SUSPEND | PORT_RESUME | PORT_OWNER)) { |
| 272 | usb_hcd_resume_root_hub(hcd); |
| 273 | return 0; |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 274 | } |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | restart: |
| 278 | ehci_dbg(ehci, "lost power, restarting\n"); |
Alan Stern | 1c50c31 | 2005-11-14 11:45:38 -0500 | [diff] [blame] | 279 | usb_root_hub_lost_power(hcd->self.root_hub); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 280 | |
| 281 | /* Else reset, to cope with power loss or flush-to-storage |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 282 | * style "resume" having let BIOS kick in during reboot. |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 283 | */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 284 | (void) ehci_halt(ehci); |
| 285 | (void) ehci_reset(ehci); |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 286 | (void) ehci_pci_reinit(ehci, pdev); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 287 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 288 | /* emptying the schedule aborts any urbs */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 289 | spin_lock_irq(&ehci->lock); |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 290 | if (ehci->reclaim) |
| 291 | ehci->reclaim_ready = 1; |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 292 | ehci_work(ehci, NULL); |
| 293 | spin_unlock_irq(&ehci->lock); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 294 | |
David Brownell | f03c17f | 2005-11-23 15:45:28 -0800 | [diff] [blame] | 295 | /* restart; khubd will disconnect devices */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 296 | retval = ehci_run(hcd); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 297 | |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 298 | /* here we "know" root ports should always stay powered */ |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 299 | ehci_port_power(ehci, 1); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 300 | |
| 301 | return retval; |
| 302 | } |
| 303 | #endif |
| 304 | |
| 305 | static const struct hc_driver ehci_pci_hc_driver = { |
| 306 | .description = hcd_name, |
| 307 | .product_desc = "EHCI Host Controller", |
| 308 | .hcd_priv_size = sizeof(struct ehci_hcd), |
| 309 | |
| 310 | /* |
| 311 | * generic hardware linkage |
| 312 | */ |
| 313 | .irq = ehci_irq, |
| 314 | .flags = HCD_MEMORY | HCD_USB2, |
| 315 | |
| 316 | /* |
| 317 | * basic lifecycle operations |
| 318 | */ |
David Brownell | 8926bfa | 2005-11-28 08:40:38 -0800 | [diff] [blame] | 319 | .reset = ehci_pci_setup, |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 320 | .start = ehci_run, |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 321 | #ifdef CONFIG_PM |
| 322 | .suspend = ehci_pci_suspend, |
| 323 | .resume = ehci_pci_resume, |
| 324 | #endif |
David Brownell | 1880752 | 2005-11-23 15:45:37 -0800 | [diff] [blame] | 325 | .stop = ehci_stop, |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 326 | |
| 327 | /* |
| 328 | * managing i/o requests and associated device resources |
| 329 | */ |
| 330 | .urb_enqueue = ehci_urb_enqueue, |
| 331 | .urb_dequeue = ehci_urb_dequeue, |
| 332 | .endpoint_disable = ehci_endpoint_disable, |
| 333 | |
| 334 | /* |
| 335 | * scheduling support |
| 336 | */ |
| 337 | .get_frame_number = ehci_get_frame, |
| 338 | |
| 339 | /* |
| 340 | * root hub support |
| 341 | */ |
| 342 | .hub_status_data = ehci_hub_status_data, |
| 343 | .hub_control = ehci_hub_control, |
Alan Stern | 0c0382e | 2005-10-13 17:08:02 -0400 | [diff] [blame] | 344 | .bus_suspend = ehci_bus_suspend, |
| 345 | .bus_resume = ehci_bus_resume, |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 346 | }; |
| 347 | |
| 348 | /*-------------------------------------------------------------------------*/ |
| 349 | |
| 350 | /* PCI driver selection metadata; PCI hotplugging uses this */ |
| 351 | static const struct pci_device_id pci_ids [] = { { |
| 352 | /* handle any USB 2.0 EHCI controller */ |
| 353 | PCI_DEVICE_CLASS(((PCI_CLASS_SERIAL_USB << 8) | 0x20), ~0), |
| 354 | .driver_data = (unsigned long) &ehci_pci_hc_driver, |
| 355 | }, |
| 356 | { /* end: all zeroes */ } |
| 357 | }; |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 358 | MODULE_DEVICE_TABLE(pci, pci_ids); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 359 | |
| 360 | /* pci driver glue; this is a "new style" PCI driver module */ |
| 361 | static struct pci_driver ehci_pci_driver = { |
| 362 | .name = (char *) hcd_name, |
| 363 | .id_table = pci_ids, |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 364 | |
| 365 | .probe = usb_hcd_pci_probe, |
| 366 | .remove = usb_hcd_pci_remove, |
| 367 | |
| 368 | #ifdef CONFIG_PM |
| 369 | .suspend = usb_hcd_pci_suspend, |
| 370 | .resume = usb_hcd_pci_resume, |
| 371 | #endif |
| 372 | }; |
| 373 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 374 | static int __init ehci_hcd_pci_init(void) |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 375 | { |
| 376 | if (usb_disabled()) |
| 377 | return -ENODEV; |
| 378 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 379 | pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n", |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 380 | hcd_name, |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 381 | sizeof(struct ehci_qh), sizeof(struct ehci_qtd), |
| 382 | sizeof(struct ehci_itd), sizeof(struct ehci_sitd)); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 383 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 384 | return pci_register_driver(&ehci_pci_driver); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 385 | } |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 386 | module_init(ehci_hcd_pci_init); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 387 | |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 388 | static void __exit ehci_hcd_pci_cleanup(void) |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 389 | { |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 390 | pci_unregister_driver(&ehci_pci_driver); |
Matt Porter | 7ff71d6 | 2005-09-22 22:31:15 -0700 | [diff] [blame] | 391 | } |
David Brownell | abcc94480 | 2005-11-23 15:45:32 -0800 | [diff] [blame] | 392 | module_exit(ehci_hcd_pci_cleanup); |