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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pci/pcie/portdrv_pci.c | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/pci/pcie/portdrv_pci.c')
-rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c new file mode 100644 index 0000000..3184843 --- /dev/null +++ b/drivers/pci/pcie/portdrv_pci.c @@ -0,0 +1,122 @@ +/* + * File: portdrv_pci.c + * Purpose: PCI Express Port Bus Driver + * + * Copyright (C) 2004 Intel + * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pm.h> +#include <linux/init.h> +#include <linux/pcieport_if.h> + +#include "portdrv.h" + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.0" +#define DRIVER_AUTHOR "tom.l.nguyen@intel.com" +#define DRIVER_DESC "PCIE Port Bus Driver" +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +/* global data */ +static const char device_name[] = "pcieport-driver"; + +/* + * pcie_portdrv_probe - Probe PCI-Express port devices + * @dev: PCI-Express port device being probed + * + * If detected invokes the pcie_port_device_register() method for + * this port device. + * + */ +static int __devinit pcie_portdrv_probe (struct pci_dev *dev, + const struct pci_device_id *id ) +{ + int status; + + status = pcie_port_device_probe(dev); + if (status) + return status; + + if (pci_enable_device(dev) < 0) + return -ENODEV; + + pci_set_master(dev); + if (!dev->irq) { + printk(KERN_WARNING + "%s->Dev[%04x:%04x] has invalid IRQ. Check vendor BIOS\n", + __FUNCTION__, dev->device, dev->vendor); + } + if (pcie_port_device_register(dev)) + return -ENOMEM; + + return 0; +} + +static void pcie_portdrv_remove (struct pci_dev *dev) +{ + pcie_port_device_remove(dev); +} + +#ifdef CONFIG_PM +static int pcie_portdrv_suspend (struct pci_dev *dev, u32 state) +{ + return pcie_port_device_suspend(dev, state); +} + +static int pcie_portdrv_resume (struct pci_dev *dev) +{ + return pcie_port_device_resume(dev); +} +#endif + +/* + * LINUX Device Driver Model + */ +static const struct pci_device_id port_pci_ids[] = { { + /* handle any PCI-Express port */ + PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0), + }, { /* end: all zeroes */ } +}; +MODULE_DEVICE_TABLE(pci, port_pci_ids); + +static struct pci_driver pcie_portdrv = { + .name = (char *)device_name, + .id_table = &port_pci_ids[0], + + .probe = pcie_portdrv_probe, + .remove = pcie_portdrv_remove, + +#ifdef CONFIG_PM + .suspend = pcie_portdrv_suspend, + .resume = pcie_portdrv_resume, +#endif /* PM */ +}; + +static int __init pcie_portdrv_init(void) +{ + int retval = 0; + + pcie_port_bus_register(); + retval = pci_register_driver(&pcie_portdrv); + if (retval) + pcie_port_bus_unregister(); + return retval; +} + +static void __exit pcie_portdrv_exit(void) +{ + pci_unregister_driver(&pcie_portdrv); + pcie_port_bus_unregister(); +} + +module_init(pcie_portdrv_init); +module_exit(pcie_portdrv_exit); |