diff options
Diffstat (limited to 'drivers/usb/host/ohci-sh.c')
-rw-r--r-- | drivers/usb/host/ohci-sh.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c new file mode 100644 index 00000000000..5309ac039e1 --- /dev/null +++ b/drivers/usb/host/ohci-sh.c @@ -0,0 +1,143 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * Copyright (C) 2008 Renesas Solutions Corp. + * + * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#include <linux/platform_device.h> + +static int ohci_sh_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + + ohci_hcd_init(ohci); + ohci_init(ohci); + ohci_run(ohci); + hcd->state = HC_STATE_RUNNING; + return 0; +} + +static const struct hc_driver ohci_sh_hc_driver = { + .description = hcd_name, + .product_desc = "SuperH OHCI", + .hcd_priv_size = sizeof(struct ohci_hcd), + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .start = ohci_sh_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, + .hub_irq_enable = ohci_rhsc_enable, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + +/*-------------------------------------------------------------------------*/ + +#define resource_len(r) (((r)->end - (r)->start) + 1) +static int ohci_hcd_sh_probe(struct platform_device *pdev) +{ + struct resource *res = NULL; + struct usb_hcd *hcd = NULL; + int irq = -1; + int ret; + + if (usb_disabled()) + return -ENODEV; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + err("platform_get_resource error."); + return -ENODEV; + } + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + err("platform_get_irq error."); + return -ENODEV; + } + + /* initialize hcd */ + hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name); + if (!hcd) { + err("Failed to create hcd"); + return -ENOMEM; + } + + hcd->regs = (void __iomem *)res->start; + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_len(res); + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + if (ret != 0) { + err("Failed to add hcd"); + usb_put_hcd(hcd); + return ret; + } + + return ret; +} + +static int ohci_hcd_sh_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_remove_hcd(hcd); + usb_put_hcd(hcd); + + return 0; +} + +static struct platform_driver ohci_hcd_sh_driver = { + .probe = ohci_hcd_sh_probe, + .remove = ohci_hcd_sh_remove, + .shutdown = usb_hcd_platform_shutdown, + .driver = { + .name = "sh_ohci", + .owner = THIS_MODULE, + }, +}; + |