| 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 |
|
|---|
| 29 | /**
|
|---|
| 30 | * @addtogroup drvusbohci
|
|---|
| 31 | * @{
|
|---|
| 32 | */
|
|---|
| 33 | /**
|
|---|
| 34 | * @file
|
|---|
| 35 | * PCI related functions needed by the OHCI driver.
|
|---|
| 36 | */
|
|---|
| 37 |
|
|---|
| 38 | #include <errno.h>
|
|---|
| 39 | #include <assert.h>
|
|---|
| 40 | #include <as.h>
|
|---|
| 41 | #include <devman.h>
|
|---|
| 42 | #include <ddi.h>
|
|---|
| 43 | #include <libarch/ddi.h>
|
|---|
| 44 | #include <device/hw_res_parsed.h>
|
|---|
| 45 |
|
|---|
| 46 | #include <usb/debug.h>
|
|---|
| 47 | #include <pci_dev_iface.h>
|
|---|
| 48 |
|
|---|
| 49 | #include "pci.h"
|
|---|
| 50 |
|
|---|
| 51 | /** Get address of registers and IRQ for given device.
|
|---|
| 52 | *
|
|---|
| 53 | * @param[in] dev Device asking for the addresses.
|
|---|
| 54 | * @param[out] mem_reg_address Base address of the memory range.
|
|---|
| 55 | * @param[out] mem_reg_size Size of the memory range.
|
|---|
| 56 | * @param[out] irq_no IRQ assigned to the device.
|
|---|
| 57 | * @return Error code.
|
|---|
| 58 | */
|
|---|
| 59 | int pci_get_my_registers(ddf_dev_t *dev,
|
|---|
| 60 | uintptr_t *mem_reg_address, size_t *mem_reg_size, int *irq_no)
|
|---|
| 61 | {
|
|---|
| 62 | assert(dev);
|
|---|
| 63 |
|
|---|
| 64 | async_sess_t *parent_sess =
|
|---|
| 65 | devman_parent_device_connect(EXCHANGE_SERIALIZE, dev->handle,
|
|---|
| 66 | IPC_FLAG_BLOCKING);
|
|---|
| 67 | if (!parent_sess)
|
|---|
| 68 | return ENOMEM;
|
|---|
| 69 |
|
|---|
| 70 | hw_res_list_parsed_t hw_res;
|
|---|
| 71 | hw_res_list_parsed_init(&hw_res);
|
|---|
| 72 | const int ret = hw_res_get_list_parsed(parent_sess, &hw_res, 0);
|
|---|
| 73 | async_hangup(parent_sess);
|
|---|
| 74 | if (ret != EOK) {
|
|---|
| 75 | return ret;
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | /* We want one irq and one mem range. */
|
|---|
| 79 | if (hw_res.irqs.count != 1 || hw_res.mem_ranges.count != 1) {
|
|---|
| 80 | hw_res_list_parsed_clean(&hw_res);
|
|---|
| 81 | return EINVAL;
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | if (mem_reg_address)
|
|---|
| 85 | *mem_reg_address = hw_res.mem_ranges.ranges[0].address;
|
|---|
| 86 | if (mem_reg_size)
|
|---|
| 87 | *mem_reg_size = hw_res.mem_ranges.ranges[0].size;
|
|---|
| 88 | if (irq_no)
|
|---|
| 89 | *irq_no = hw_res.irqs.irqs[0];
|
|---|
| 90 |
|
|---|
| 91 | hw_res_list_parsed_clean(&hw_res);
|
|---|
| 92 | return EOK;
|
|---|
| 93 | }
|
|---|
| 94 |
|
|---|
| 95 | /** Call the PCI driver with a request to enable interrupts
|
|---|
| 96 | *
|
|---|
| 97 | * @param[in] device Device asking for interrupts
|
|---|
| 98 | * @return Error code.
|
|---|
| 99 | */
|
|---|
| 100 | int pci_enable_interrupts(ddf_dev_t *device)
|
|---|
| 101 | {
|
|---|
| 102 | async_sess_t *parent_sess =
|
|---|
| 103 | devman_parent_device_connect(EXCHANGE_SERIALIZE, device->handle,
|
|---|
| 104 | IPC_FLAG_BLOCKING);
|
|---|
| 105 | if (!parent_sess)
|
|---|
| 106 | return ENOMEM;
|
|---|
| 107 |
|
|---|
| 108 | bool enabled = hw_res_enable_interrupt(parent_sess);
|
|---|
| 109 | async_hangup(parent_sess);
|
|---|
| 110 |
|
|---|
| 111 | return enabled ? EOK : EIO;
|
|---|
| 112 | }
|
|---|
| 113 |
|
|---|
| 114 | /**
|
|---|
| 115 | * @}
|
|---|
| 116 | */
|
|---|
