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staging: gasket: apex: move PCI core calls to apex driver

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Apex driver moves PCI core calls like probe, enable, and remove from
gasket to apex.  Call new functions in gasket to register apex as a PCI
device to the gasket framework.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Todd Poynor
2018-08-05 13:07:37 -07:00
committed by Alex Van Damme
parent c9f462b11e
commit ea7e508c0d
1 changed files with 48 additions and 1 deletions
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49
apex_driver.c
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@@ -13,6 +13,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/printk.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
@@ -685,6 +686,36 @@ static void apex_pci_fixup_class(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_CLASS_HEADER(APEX_PCI_VENDOR_ID, APEX_PCI_DEVICE_ID,
PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class);
static int apex_pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
{
int ret;
struct gasket_dev *gasket_dev;
ret = pci_enable_device(pci_dev);
if (ret) {
dev_err(&pci_dev->dev, "error enabling PCI device\n");
return ret;
}
pci_set_master(pci_dev);
ret = gasket_pci_add_device(pci_dev, &gasket_dev);
if (ret) {
dev_err(&pci_dev->dev, "error adding gasket device\n");
pci_disable_device(pci_dev);
return ret;
}
return 0;
}
static void apex_pci_remove(struct pci_dev *pci_dev)
{
gasket_pci_remove_device(pci_dev);
pci_disable_device(pci_dev);
}
static struct gasket_driver_desc apex_desc = {
.name = "apex",
.driver_version = APEX_DRIVER_VERSION,
@@ -736,13 +767,29 @@ static struct gasket_driver_desc apex_desc = {
.device_reset_cb = apex_reset,
};
static struct pci_driver apex_pci_driver = {
.name = "apex",
.probe = apex_pci_probe,
.remove = apex_pci_remove,
.id_table = apex_pci_ids,
};
static int __init apex_init(void)
{
return gasket_register_device(&apex_desc);
int ret;
ret = gasket_register_device(&apex_desc);
if (ret)
return ret;
ret = pci_register_driver(&apex_pci_driver);
if (ret)
gasket_unregister_device(&apex_desc);
return ret;
}
static void apex_exit(void)
{
pci_unregister_driver(&apex_pci_driver);
gasket_unregister_device(&apex_desc);
}
MODULE_DESCRIPTION("Google Apex driver");