* This file is licenced under the GPL.
*/
-#ifndef CONFIG_PCI
-#error "This file is PCI bus glue. CONFIG_PCI must be defined."
-#endif
-
-#include <linux/pci.h>
#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
+#include "pci-quirks.h"
+
+#define DRIVER_DESC "OHCI PCI platform driver"
+
+static const char hcd_name[] = "ohci-pci";
/*-------------------------------------------------------------------------*/
struct ohci_hcd *ohci = container_of(work, struct ohci_hcd, nec_work);
int status;
- status = ohci_init(ohci);
- if (status != 0) {
- ohci_err(ohci, "Restarting NEC controller failed in %s, %d\n",
- "ohci_init", status);
- return;
- }
-
status = ohci_restart(ohci);
if (status != 0)
ohci_err(ohci, "Restarting NEC controller failed in %s, %d\n",
static int ohci_quirk_amd700(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- struct pci_dev *amd_smbus_dev;
- u8 rev;
if (usb_amd_find_chipset_info())
ohci->flags |= OHCI_QUIRK_AMD_PLL;
- amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI,
- PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL);
- if (!amd_smbus_dev)
- return 0;
-
- rev = amd_smbus_dev->revision;
-
/* SB800 needs pre-fetch fix */
- if ((rev >= 0x40) && (rev <= 0x4f)) {
+ if (usb_amd_prefetch_quirk()) {
ohci->flags |= OHCI_QUIRK_AMD_PREFETCH;
ohci_dbg(ohci, "enabled AMD prefetch quirk\n");
}
- pci_dev_put(amd_smbus_dev);
- amd_smbus_dev = NULL;
-
ohci->flags |= OHCI_QUIRK_GLOBAL_SUSPEND;
return 0;
}
-static void sb800_prefetch(struct ohci_hcd *ohci, int on)
-{
- struct pci_dev *pdev;
- u16 misc;
-
- pdev = to_pci_dev(ohci_to_hcd(ohci)->self.controller);
- pci_read_config_word(pdev, 0x50, &misc);
- if (on == 0)
- pci_write_config_word(pdev, 0x50, misc & 0xfcff);
- else
- pci_write_config_word(pdev, 0x50, misc | 0x0300);
-}
-
/* List of quirks for OHCI */
static const struct pci_device_id ohci_pci_quirks[] = {
{
static int ohci_pci_reset (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
+ struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int ret = 0;
if (hcd->self.controller) {
- struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
const struct pci_device_id *quirk_id;
quirk_id = pci_match_id(ohci_pci_quirks, pdev);
ret = quirk(hcd);
}
}
- if (ret == 0) {
- ohci_hcd_init (ohci);
- return ohci_init (ohci);
- }
- return ret;
-}
-
-static int ohci_pci_start (struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- int ret;
-
-#ifdef CONFIG_PM /* avoid warnings about unused pdev */
- if (hcd->self.controller) {
- struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
-
- /* RWC may not be set for add-in PCI cards, since boot
- * firmware probably ignored them. This transfers PCI
- * PM wakeup capabilities.
- */
- if (device_can_wakeup(&pdev->dev))
- ohci->hc_control |= OHCI_CTRL_RWC;
- }
-#endif /* CONFIG_PM */
-
- ret = ohci_run (ohci);
- if (ret < 0) {
- ohci_err (ohci, "can't start\n");
- ohci_stop (hcd);
- }
+ if (ret == 0)
+ ret = ohci_setup(hcd);
+ /*
+ * After ohci setup RWC may not be set for add-in PCI cards.
+ * This transfers PCI PM wakeup capabilities.
+ */
+ if (device_can_wakeup(&pdev->dev))
+ ohci->hc_control |= OHCI_CTRL_RWC;
return ret;
}
+static struct hc_driver __read_mostly ohci_pci_hc_driver;
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_pci_hc_driver = {
- .description = hcd_name,
- .product_desc = "OHCI Host Controller",
- .hcd_priv_size = sizeof(struct ohci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_MEMORY | HCD_USB11,
-
- /*
- * basic lifecycle operations
- */
+static const struct ohci_driver_overrides pci_overrides __initconst = {
+ .product_desc = "OHCI PCI host controller",
.reset = ohci_pci_reset,
- .start = ohci_pci_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
-#ifdef CONFIG_PM
- .pci_suspend = ohci_suspend,
- .pci_resume = ohci_resume,
-#endif
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-#ifdef CONFIG_PM
- .bus_suspend = ohci_bus_suspend,
- .bus_resume = ohci_bus_resume,
-#endif
- .start_port_reset = ohci_start_port_reset,
};
-/*-------------------------------------------------------------------------*/
-
-
static const struct pci_device_id pci_ids [] = { {
/* handle any USB OHCI controller */
PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_OHCI, ~0),
},
#endif
};
+
+static int __init ohci_pci_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ ohci_init_driver(&ohci_pci_hc_driver, &pci_overrides);
+
+#ifdef CONFIG_PM
+ /* Entries for the PCI suspend/resume callbacks are special */
+ ohci_pci_hc_driver.pci_suspend = ohci_suspend;
+ ohci_pci_hc_driver.pci_resume = ohci_resume;
+#endif
+
+ return pci_register_driver(&ohci_pci_driver);
+}
+module_init(ohci_pci_init);
+
+static void __exit ohci_pci_cleanup(void)
+{
+ pci_unregister_driver(&ohci_pci_driver);
+}
+module_exit(ohci_pci_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: ehci_pci");
projects / firefly-linux-kernel-4.4.55.git / blobdiff