#include <linux/module.h>
#include "pci.h"
-int pci_hotplug (struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+int pci_uevent(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
{
struct pci_dev *pdev;
- char *scratch;
int i = 0;
int length = 0;
if (!pdev)
return -ENODEV;
- scratch = buffer;
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PCI_CLASS=%04X", pdev->class))
+ return -ENOMEM;
- /* stuff we want to pass to /sbin/hotplug */
- envp[i++] = scratch;
- length += scnprintf (scratch, buffer_size - length, "PCI_CLASS=%04X",
- pdev->class);
- if ((buffer_size - length <= 0) || (i >= num_envp))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
return -ENOMEM;
- ++length;
- scratch += length;
- envp[i++] = scratch;
- length += scnprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X",
- pdev->vendor, pdev->device);
- if ((buffer_size - length <= 0) || (i >= num_envp))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+ pdev->subsystem_device))
return -ENOMEM;
- ++length;
- scratch += length;
- envp[i++] = scratch;
- length += scnprintf (scratch, buffer_size - length,
- "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
- pdev->subsystem_device);
- if ((buffer_size - length <= 0) || (i >= num_envp))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PCI_SLOT_NAME=%s", pci_name(pdev)))
return -ENOMEM;
- ++length;
- scratch += length;
- envp[i++] = scratch;
- length += scnprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s",
- pci_name(pdev));
- if ((buffer_size - length <= 0) || (i >= num_envp))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
+ pdev->vendor, pdev->device,
+ pdev->subsystem_vendor, pdev->subsystem_device,
+ (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
+ (u8)(pdev->class)))
return -ENOMEM;
envp[i] = NULL;
return 0;
}
-
-static int pci_visit_bus (struct pci_visit * fn, struct pci_bus_wrapped *wrapped_bus, struct pci_dev_wrapped *wrapped_parent)
-{
- struct list_head *ln;
- struct pci_dev *dev;
- struct pci_dev_wrapped wrapped_dev;
- int result = 0;
-
- pr_debug("PCI: Scanning bus %04x:%02x\n", pci_domain_nr(wrapped_bus->bus),
- wrapped_bus->bus->number);
-
- if (fn->pre_visit_pci_bus) {
- result = fn->pre_visit_pci_bus(wrapped_bus, wrapped_parent);
- if (result)
- return result;
- }
-
- ln = wrapped_bus->bus->devices.next;
- while (ln != &wrapped_bus->bus->devices) {
- dev = pci_dev_b(ln);
- ln = ln->next;
-
- memset(&wrapped_dev, 0, sizeof(struct pci_dev_wrapped));
- wrapped_dev.dev = dev;
-
- result = pci_visit_dev(fn, &wrapped_dev, wrapped_bus);
- if (result)
- return result;
- }
-
- if (fn->post_visit_pci_bus)
- result = fn->post_visit_pci_bus(wrapped_bus, wrapped_parent);
-
- return result;
-}
-
-static int pci_visit_bridge (struct pci_visit * fn,
- struct pci_dev_wrapped *wrapped_dev,
- struct pci_bus_wrapped *wrapped_parent)
-{
- struct pci_bus *bus;
- struct pci_bus_wrapped wrapped_bus;
- int result = 0;
-
- pr_debug("PCI: Scanning bridge %s\n", pci_name(wrapped_dev->dev));
-
- if (fn->visit_pci_dev) {
- result = fn->visit_pci_dev(wrapped_dev, wrapped_parent);
- if (result)
- return result;
- }
-
- bus = wrapped_dev->dev->subordinate;
- if (bus) {
- memset(&wrapped_bus, 0, sizeof(struct pci_bus_wrapped));
- wrapped_bus.bus = bus;
-
- result = pci_visit_bus(fn, &wrapped_bus, wrapped_dev);
- }
- return result;
-}
-
-/**
- * pci_visit_dev - scans the pci buses.
- * @fn: callback functions that are called while visiting
- * @wrapped_dev: the device to scan
- * @wrapped_parent: the bus where @wrapped_dev is connected to
- *
- * Every bus and every function is presented to a custom
- * function that can act upon it.
- */
-int pci_visit_dev(struct pci_visit *fn, struct pci_dev_wrapped *wrapped_dev,
- struct pci_bus_wrapped *wrapped_parent)
-{
- struct pci_dev* dev = wrapped_dev ? wrapped_dev->dev : NULL;
- int result = 0;
-
- if (!dev)
- return 0;
-
- if (fn->pre_visit_pci_dev) {
- result = fn->pre_visit_pci_dev(wrapped_dev, wrapped_parent);
- if (result)
- return result;
- }
-
- switch (dev->class >> 8) {
- case PCI_CLASS_BRIDGE_PCI:
- result = pci_visit_bridge(fn, wrapped_dev,
- wrapped_parent);
- if (result)
- return result;
- break;
- default:
- pr_debug("PCI: Scanning device %s\n", pci_name(dev));
- if (fn->visit_pci_dev) {
- result = fn->visit_pci_dev (wrapped_dev,
- wrapped_parent);
- if (result)
- return result;
- }
- }
-
- if (fn->post_visit_pci_dev)
- result = fn->post_visit_pci_dev(wrapped_dev, wrapped_parent);
-
- return result;
-}
-EXPORT_SYMBOL(pci_visit_dev);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff