diff options
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_bus.c |
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_bus.c')
-rw-r--r-- | drivers/pci/pcie/portdrv_bus.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c new file mode 100644 index 000000000000..9a02f28ed05f --- /dev/null +++ b/drivers/pci/pcie/portdrv_bus.c @@ -0,0 +1,77 @@ +/* + * File: portdrv_bus.c + * Purpose: PCI Express Port Bus Driver's Bus Overloading Functions + * + * 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/pcieport_if.h> + +static int pcie_port_bus_match(struct device *dev, struct device_driver *drv); +static int pcie_port_bus_suspend(struct device *dev, u32 state); +static int pcie_port_bus_resume(struct device *dev); + +struct bus_type pcie_port_bus_type = { + .name = "pci_express", + .match = pcie_port_bus_match, + .suspend = pcie_port_bus_suspend, + .resume = pcie_port_bus_resume, +}; + +static int pcie_port_bus_match(struct device *dev, struct device_driver *drv) +{ + struct pcie_device *pciedev; + struct pcie_port_service_driver *driver; + + if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type) + return 0; + + pciedev = to_pcie_device(dev); + driver = to_service_driver(drv); + if ( (driver->id_table->vendor != PCI_ANY_ID && + driver->id_table->vendor != pciedev->id.vendor) || + (driver->id_table->device != PCI_ANY_ID && + driver->id_table->device != pciedev->id.device) || + driver->id_table->port_type != pciedev->id.port_type || + driver->id_table->service_type != pciedev->id.service_type ) + return 0; + + return 1; +} + +static int pcie_port_bus_suspend(struct device *dev, u32 state) +{ + struct pcie_device *pciedev; + struct pcie_port_service_driver *driver; + + if (!dev || !dev->driver) + return 0; + + pciedev = to_pcie_device(dev); + driver = to_service_driver(dev->driver); + if (driver && driver->suspend) + driver->suspend(pciedev, state); + return 0; +} + +static int pcie_port_bus_resume(struct device *dev) +{ + struct pcie_device *pciedev; + struct pcie_port_service_driver *driver; + + if (!dev || !dev->driver) + return 0; + + pciedev = to_pcie_device(dev); + driver = to_service_driver(dev->driver); + if (driver && driver->resume) + driver->resume(pciedev); + return 0; +} |