Yoshihiro Shimoda | 828d55c | 2008-01-11 22:56:15 +0900 | [diff] [blame] | 1 | /* |
| 2 | * OHCI HCD (Host Controller Driver) for USB. |
| 3 | * |
| 4 | * Copyright (C) 2008 Renesas Solutions Corp. |
| 5 | * |
| 6 | * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; version 2 of the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <linux/platform_device.h> |
| 24 | |
| 25 | static int ohci_sh_start(struct usb_hcd *hcd) |
| 26 | { |
| 27 | struct ohci_hcd *ohci = hcd_to_ohci(hcd); |
| 28 | |
| 29 | ohci_hcd_init(ohci); |
| 30 | ohci_init(ohci); |
| 31 | ohci_run(ohci); |
| 32 | hcd->state = HC_STATE_RUNNING; |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | static const struct hc_driver ohci_sh_hc_driver = { |
| 37 | .description = hcd_name, |
| 38 | .product_desc = "SuperH OHCI", |
| 39 | .hcd_priv_size = sizeof(struct ohci_hcd), |
| 40 | |
| 41 | /* |
| 42 | * generic hardware linkage |
| 43 | */ |
| 44 | .irq = ohci_irq, |
| 45 | .flags = HCD_USB11 | HCD_MEMORY, |
| 46 | |
| 47 | /* |
| 48 | * basic lifecycle operations |
| 49 | */ |
| 50 | .start = ohci_sh_start, |
| 51 | .stop = ohci_stop, |
| 52 | .shutdown = ohci_shutdown, |
| 53 | |
| 54 | /* |
| 55 | * managing i/o requests and associated device resources |
| 56 | */ |
| 57 | .urb_enqueue = ohci_urb_enqueue, |
| 58 | .urb_dequeue = ohci_urb_dequeue, |
| 59 | .endpoint_disable = ohci_endpoint_disable, |
| 60 | |
| 61 | /* |
| 62 | * scheduling support |
| 63 | */ |
| 64 | .get_frame_number = ohci_get_frame, |
| 65 | |
| 66 | /* |
| 67 | * root hub support |
| 68 | */ |
| 69 | .hub_status_data = ohci_hub_status_data, |
| 70 | .hub_control = ohci_hub_control, |
Linus Torvalds | 09ca8ad | 2008-07-06 10:27:25 -0700 | [diff] [blame] | 71 | .hub_irq_enable = ohci_rhsc_enable, |
Yoshihiro Shimoda | 828d55c | 2008-01-11 22:56:15 +0900 | [diff] [blame] | 72 | #ifdef CONFIG_PM |
| 73 | .bus_suspend = ohci_bus_suspend, |
| 74 | .bus_resume = ohci_bus_resume, |
| 75 | #endif |
| 76 | .start_port_reset = ohci_start_port_reset, |
| 77 | }; |
| 78 | |
| 79 | /*-------------------------------------------------------------------------*/ |
| 80 | |
| 81 | #define resource_len(r) (((r)->end - (r)->start) + 1) |
| 82 | static int ohci_hcd_sh_probe(struct platform_device *pdev) |
| 83 | { |
| 84 | struct resource *res = NULL; |
| 85 | struct usb_hcd *hcd = NULL; |
| 86 | int irq = -1; |
| 87 | int ret; |
| 88 | |
| 89 | if (usb_disabled()) |
| 90 | return -ENODEV; |
| 91 | |
| 92 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 93 | if (!res) { |
| 94 | err("platform_get_resource error."); |
| 95 | return -ENODEV; |
| 96 | } |
| 97 | |
| 98 | irq = platform_get_irq(pdev, 0); |
| 99 | if (irq < 0) { |
| 100 | err("platform_get_irq error."); |
| 101 | return -ENODEV; |
| 102 | } |
| 103 | |
| 104 | /* initialize hcd */ |
| 105 | hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name); |
| 106 | if (!hcd) { |
| 107 | err("Failed to create hcd"); |
| 108 | return -ENOMEM; |
| 109 | } |
| 110 | |
| 111 | hcd->regs = (void __iomem *)res->start; |
| 112 | hcd->rsrc_start = res->start; |
| 113 | hcd->rsrc_len = resource_len(res); |
| 114 | ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); |
| 115 | if (ret != 0) { |
| 116 | err("Failed to add hcd"); |
| 117 | usb_put_hcd(hcd); |
| 118 | return ret; |
| 119 | } |
| 120 | |
| 121 | return ret; |
| 122 | } |
| 123 | |
| 124 | static int ohci_hcd_sh_remove(struct platform_device *pdev) |
| 125 | { |
| 126 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 127 | |
| 128 | usb_remove_hcd(hcd); |
| 129 | usb_put_hcd(hcd); |
| 130 | |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | static struct platform_driver ohci_hcd_sh_driver = { |
| 135 | .probe = ohci_hcd_sh_probe, |
| 136 | .remove = ohci_hcd_sh_remove, |
| 137 | .shutdown = usb_hcd_platform_shutdown, |
| 138 | .driver = { |
| 139 | .name = "sh_ohci", |
| 140 | .owner = THIS_MODULE, |
| 141 | }, |
| 142 | }; |
| 143 | |
Kay Sievers | f4fce61 | 2008-04-10 21:29:22 -0700 | [diff] [blame] | 144 | MODULE_ALIAS("platform:sh_ohci"); |