source: mainline/uspace/drv/bus/usb/uhci/root_hub.c@ d52ab7b

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d52ab7b was 5b89d43b, checked in by Jakub Jermar <jakub@…>, 12 years ago

Unbreak USB UHCI support.

  • Support PIO_WINDOW_DEV_IFACE in the uhci driver.
  • Do not base the UHCI RH resources on the address obtained from pio_enable_range().
  • Provide a restricted PIO window instead, based on the UHCI IO range. The UHCI RH resources are then relative to this window.
  • Property mode set to 100644
File size: 2.9 KB
Line 
1/*
2 * Copyright (c) 2011 Jan Vesely
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - 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 * - 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 ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28/** @addtogroup drvusbuhci
29 * @{
30 */
31/** @file
32 * @brief UHCI driver
33 */
34#include <assert.h>
35#include <errno.h>
36#include <str_error.h>
37#include <stdio.h>
38#include <device/hw_res_parsed.h>
39
40#include <usb/debug.h>
41
42#include "root_hub.h"
43
44/** Root hub initialization
45 * @param[in] instance RH structure to initialize
46 * @param[in] fun DDF function representing UHCI root hub
47 * @param[in] reg_addr Address of root hub status and control registers.
48 * @param[in] reg_size Size of accessible address space.
49 * @return Error code.
50 */
51int
52rh_init(rh_t *instance, ddf_fun_t *fun, addr_range_t *regs, uintptr_t reg_addr,
53 size_t reg_size)
54{
55 assert(instance);
56 assert(fun);
57
58 /* Crop the PIO window to the absolute address range of UHCI I/O. */
59 instance->pio_window.mem.base = 0;
60 instance->pio_window.mem.size = 0;
61 instance->pio_window.io.base = RNGABS(*regs);
62 instance->pio_window.io.size = RNGSZ(*regs);
63
64 /* Initialize resource structure */
65 instance->resource_list.count = 1;
66 instance->resource_list.resources = &instance->io_regs;
67
68 instance->io_regs.type = IO_RANGE;
69 instance->io_regs.res.io_range.address = reg_addr;
70 instance->io_regs.res.io_range.size = reg_size;
71 instance->io_regs.res.io_range.relative = true;
72 instance->io_regs.res.io_range.endianness = LITTLE_ENDIAN;
73
74 const int ret = ddf_fun_add_match_id(fun, "usb&uhci&root-hub", 100);
75 if (ret != EOK) {
76 usb_log_error("Failed to add root hub match id: %s\n",
77 str_error(ret));
78 }
79 return ret;
80}
81/**
82 * @}
83 */
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