Patrick Georgi | d21f68b | 2008-09-02 16:06:22 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the libpayload project. |
| 3 | * |
| 4 | * Copyright (C) 2008 coresystems GmbH |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | |
Jordan Crouse | db8c0ab | 2008-11-24 17:54:46 +0000 | [diff] [blame^] | 30 | #include <libpayload-config.h> |
Jordan Crouse | 29061a5 | 2008-09-11 17:29:00 +0000 | [diff] [blame] | 31 | #include <usb/usb.h> |
Patrick Georgi | d21f68b | 2008-09-02 16:06:22 +0000 | [diff] [blame] | 32 | #include "uhci.h" |
Jordan Crouse | 29061a5 | 2008-09-11 17:29:00 +0000 | [diff] [blame] | 33 | #include <usb/usbdisk.h> |
Patrick Georgi | d21f68b | 2008-09-02 16:06:22 +0000 | [diff] [blame] | 34 | |
| 35 | /** |
| 36 | * Initializes USB controller attached to PCI |
| 37 | * |
| 38 | * @param bus PCI bus number |
| 39 | * @param dev PCI device id at bus |
| 40 | * @param func function id of the controller |
| 41 | */ |
| 42 | int |
| 43 | usb_controller_initialize (int bus, int dev, int func) |
| 44 | { |
| 45 | u32 class; |
| 46 | u32 devclass; |
| 47 | u32 prog_if; |
| 48 | pcidev_t addr; |
| 49 | u32 pciid; |
| 50 | |
| 51 | addr = PCI_DEV (bus, dev, func); |
| 52 | class = pci_read_config32 (addr, 8); |
| 53 | pciid = pci_read_config32 (addr, 0); |
| 54 | |
| 55 | devclass = class >> 16; |
| 56 | prog_if = (class >> 8) & 0xff; |
| 57 | |
| 58 | /* enable busmaster */ |
| 59 | #define PCI_COMMAND 4 |
| 60 | #define PCI_COMMAND_MASTER 4 |
| 61 | pci_write_config32 (addr, PCI_COMMAND, |
| 62 | pci_read_config32 (addr, |
| 63 | PCI_COMMAND) | |
| 64 | PCI_COMMAND_MASTER); |
| 65 | |
| 66 | if (devclass == 0xc03) { |
| 67 | printf ("%02x:%02x.%x %04x:%04x.%d ", 0, dev, func, |
| 68 | pciid >> 16, pciid & 0xFFFF, func); |
| 69 | if (prog_if == 0) { |
| 70 | printf ("UHCI controller\n"); |
| 71 | #ifdef CONFIG_USB_UHCI |
| 72 | uhci_init (addr); |
| 73 | usb_poll (); |
| 74 | usb_poll (); |
| 75 | #else |
| 76 | printf ("Not supported.\n"); |
| 77 | #endif |
| 78 | } |
| 79 | if (prog_if == 0x10) { |
| 80 | printf ("OHCI controller\n"); |
| 81 | #ifdef CONFIG_USB_OHCI |
| 82 | // ohci_init(addr); |
| 83 | #else |
| 84 | printf ("Not supported.\n"); |
| 85 | #endif |
| 86 | |
| 87 | } |
| 88 | if (prog_if == 0x20) { |
| 89 | printf ("EHCI controller\n"); |
| 90 | #ifdef CONFIG_USB_EHCI |
| 91 | // ehci_init(addr); |
| 92 | #else |
| 93 | printf ("Not supported.\n"); |
| 94 | #endif |
| 95 | |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | return 0; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Initialize all USB controllers attached to PCI. |
| 104 | */ |
| 105 | int |
| 106 | usb_initialize (void) |
| 107 | { |
| 108 | int bus, dev, func; |
| 109 | for (bus = 0; bus < 256; bus++) |
| 110 | for (dev = 0; dev < 32; dev++) |
| 111 | for (func = 0; func < 8; func++) |
| 112 | usb_controller_initialize (bus, dev, func); |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | int |
| 117 | usb_exit (void) |
| 118 | { |
| 119 | return 0; |
| 120 | } |