diff options
| author | wpaul <wpaul@FreeBSD.org> | 2000-12-18 22:06:12 +0000 |
|---|---|---|
| committer | wpaul <wpaul@FreeBSD.org> | 2000-12-18 22:06:12 +0000 |
| commit | ddd50f5780dccc6bb9d965f807b6808570ebb405 (patch) | |
| tree | 83abf3f22c76b0e15428d64f4f5b02dbb5d90d37 /sys/pci | |
| parent | 29d9ced63d2cf6eded71df28817fa9e8ae59ee1b (diff) | |
| download | FreeBSD-src-ddd50f5780dccc6bb9d965f807b6808570ebb405.zip FreeBSD-src-ddd50f5780dccc6bb9d965f807b6808570ebb405.tar.gz | |
Add power state manipulation to the fxp driver. Some people have
claimed that their Intel NIC is comatose after a warm boot from Windoze.
This is most likely due to the card getting put in the D3 state. This
should bring it back to life.
Diffstat (limited to 'sys/pci')
| -rw-r--r-- | sys/pci/if_fxp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/pci/if_fxp.c b/sys/pci/if_fxp.c index 13cd0fd..b6f66d1 100644 --- a/sys/pci/if_fxp.c +++ b/sys/pci/if_fxp.c @@ -328,6 +328,26 @@ fxp_attach(device_t dev) val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); pci_write_config(dev, PCIR_COMMAND, val, 2); + if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { + u_int32_t iobase, membase, irq; + + /* Save important PCI config data. */ + iobase = pci_read_config(dev, FXP_PCI_IOBA, 4); + membase = pci_read_config(dev, FXP_PCI_MMBA, 4); + irq = pci_read_config(dev, PCIR_INTLINE, 4); + + /* Reset the power state. */ + device_printf(dev, "chip is in D%d power mode " + "-- setting to D0\n", pci_get_powerstate(dev)); + + pci_set_powerstate(dev, PCI_POWERSTATE_D0); + + /* Restore PCI config data. */ + pci_write_config(dev, FXP_PCI_IOBA, iobase, 4); + pci_write_config(dev, FXP_PCI_MMBA, membase, 4); + pci_write_config(dev, PCIR_INTLINE, irq, 4); + } + /* * Map control/status registers. */ |
