| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 562 | 68.37% | 16 | 55.17% | |
| 169 | 20.56% | 2 | 6.90% | |
| 57 | 6.93% | 2 | 6.90% | |
| 11 | 1.34% | 1 | 3.45% | |
| 8 | 0.97% | 2 | 6.90% | |
| 8 | 0.97% | 2 | 6.90% | |
| 3 | 0.36% | 1 | 3.45% | |
| 2 | 0.24% | 1 | 3.45% | |
| 1 | 0.12% | 1 | 3.45% | |
| 1 | 0.12% | 1 | 3.45% | |
| Total | 822 | 29 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Russell King | 562 | 68.37% | 16 | 55.17% |
| Christopher Hoover | 169 | 20.56% | 2 | 6.90% |
| Alan Stern | 57 | 6.93% | 2 | 6.90% |
| Peter Chen | 11 | 1.34% | 1 | 3.45% |
| Greg Kroah-Hartman | 8 | 0.97% | 2 | 6.90% |
| Joe Perches | 8 | 0.97% | 2 | 6.90% |
| David Brownell | 3 | 0.36% | 1 | 3.45% |
| Christoph Hellwig | 2 | 0.24% | 1 | 3.45% |
| Yong Zhang | 1 | 0.12% | 1 | 3.45% |
| Uwe Kleine-König | 1 | 0.12% | 1 | 3.45% |
| Total | 822 | 29 |
// SPDX-License-Identifier: GPL-1.0+ /* * OHCI HCD (Host Controller Driver) for USB. * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> * (C) Copyright 2002 Hewlett-Packard Company * * SA1111 Bus Glue * * Written by Christopher Hoover <ch@hpl.hp.com> * Based on fragments of previous driver by Russell King et al. * * This file is licenced under the GPL. */ #include <asm/mach-types.h> #include <asm/hardware/sa1111.h> #ifndef CONFIG_SA1111 #error "This file is SA-1111 bus glue. CONFIG_SA1111 must be defined." #endif #define USB_STATUS 0x0118 #define USB_RESET 0x011c #define USB_IRQTEST 0x0120 #define USB_RESET_FORCEIFRESET (1 << 0) #define USB_RESET_FORCEHCRESET (1 << 1) #define USB_RESET_CLKGENRESET (1 << 2) #define USB_RESET_SIMSCALEDOWN (1 << 3) #define USB_RESET_USBINTTEST (1 << 4) #define USB_RESET_SLEEPSTBYEN (1 << 5) #define USB_RESET_PWRSENSELOW (1 << 6) #define USB_RESET_PWRCTRLLOW (1 << 7) #define USB_STATUS_IRQHCIRMTWKUP (1 << 7) #define USB_STATUS_IRQHCIBUFFACC (1 << 8) #define USB_STATUS_NIRQHCIM (1 << 9) #define USB_STATUS_NHCIMFCLR (1 << 10) #define USB_STATUS_USBPWRSENSE (1 << 11) #if 0 static void dump_hci_status(struct usb_hcd *hcd, const char *label) { unsigned long status = readl_relaxed(hcd->regs + USB_STATUS); printk(KERN_DEBUG "%s USB_STATUS = { %s%s%s%s%s}\n", label, ((status & USB_STATUS_IRQHCIRMTWKUP) ? "IRQHCIRMTWKUP " : ""), ((status & USB_STATUS_IRQHCIBUFFACC) ? "IRQHCIBUFFACC " : ""), ((status & USB_STATUS_NIRQHCIM) ? "" : "IRQHCIM "), ((status & USB_STATUS_NHCIMFCLR) ? "" : "HCIMFCLR "), ((status & USB_STATUS_USBPWRSENSE) ? "USBPWRSENSE " : "")); } #endif static int ohci_sa1111_reset(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); ohci_hcd_init(ohci); return ohci_init(ohci); } static int ohci_sa1111_start(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); int ret; ret = ohci_run(ohci); if (ret < 0) { ohci_err(ohci, "can't start\n"); ohci_stop(hcd); } return ret; } static const struct hc_driver ohci_sa1111_hc_driver = { .description = hcd_name, .product_desc = "SA-1111 OHCI", .hcd_priv_size = sizeof(struct ohci_hcd), /* * generic hardware linkage */ .irq = ohci_irq, .flags = HCD_USB11 | HCD_DMA | HCD_MEMORY, /* * basic lifecycle operations */ .reset = ohci_sa1111_reset, .start = ohci_sa1111_start, .stop = ohci_stop, .shutdown = ohci_shutdown, /* * 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 int sa1111_start_hc(struct sa1111_dev *dev) { unsigned int usb_rst = 0; int ret; dev_dbg(&dev->dev, "starting SA-1111 OHCI USB Controller\n"); if (machine_is_xp860() || machine_is_assabet() || machine_is_pfs168() || machine_is_badge4()) usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW; /* * Configure the power sense and control lines. Place the USB * host controller in reset. */ writel_relaxed(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET, dev->mapbase + USB_RESET); /* * Now, carefully enable the USB clock, and take * the USB host controller out of reset. */ ret = sa1111_enable_device(dev); if (ret == 0) { udelay(11); writel_relaxed(usb_rst, dev->mapbase + USB_RESET); } return ret; } static void sa1111_stop_hc(struct sa1111_dev *dev) { unsigned int usb_rst; dev_dbg(&dev->dev, "stopping SA-1111 OHCI USB Controller\n"); /* * Put the USB host controller into reset. */ usb_rst = readl_relaxed(dev->mapbase + USB_RESET); writel_relaxed(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET, dev->mapbase + USB_RESET); /* * Stop the USB clock. */ sa1111_disable_device(dev); } /** * ohci_hcd_sa1111_probe - initialize SA-1111-based HCDs * * Allocates basic resources for this USB host controller, and * then invokes the start() method for the HCD associated with it. */ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev) { struct usb_hcd *hcd; int ret, irq; if (usb_disabled()) return -ENODEV; /* * We don't call dma_set_mask_and_coherent() here because the * DMA mask has already been appropraitely setup by the core * SA-1111 bus code (which includes bug workarounds.) */ hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111"); if (!hcd) return -ENOMEM; hcd->rsrc_start = dev->res.start; hcd->rsrc_len = resource_size(&dev->res); irq = sa1111_get_irq(dev, 1); if (irq <= 0) { ret = irq ? : -ENXIO; goto err1; } if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { dev_dbg(&dev->dev, "request_mem_region failed\n"); ret = -EBUSY; goto err1; } hcd->regs = dev->mapbase; ret = sa1111_start_hc(dev); if (ret) goto err2; ret = usb_add_hcd(hcd, irq, 0); if (ret == 0) { device_wakeup_enable(hcd->self.controller); return ret; } sa1111_stop_hc(dev); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); return ret; } /** * ohci_hcd_sa1111_remove - shutdown processing for SA-1111-based HCDs * @dev: USB Host Controller being removed * * Reverses the effect of ohci_hcd_sa1111_probe(), first invoking * the HCD's stop() method. */ static int ohci_hcd_sa1111_remove(struct sa1111_dev *dev) { struct usb_hcd *hcd = sa1111_get_drvdata(dev); usb_remove_hcd(hcd); sa1111_stop_hc(dev); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); return 0; } static void ohci_hcd_sa1111_shutdown(struct device *_dev) { struct sa1111_dev *dev = to_sa1111_device(_dev); struct usb_hcd *hcd = sa1111_get_drvdata(dev); if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { hcd->driver->shutdown(hcd); sa1111_stop_hc(dev); } } static struct sa1111_driver ohci_hcd_sa1111_driver = { .drv = { .name = "sa1111-ohci", .owner = THIS_MODULE, .shutdown = ohci_hcd_sa1111_shutdown, }, .devid = SA1111_DEVID_USB, .probe = ohci_hcd_sa1111_probe, .remove = ohci_hcd_sa1111_remove, };