1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2012 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <stdio.h>
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#include "bhyverun.h"
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#include "pci_emul.h"
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#include "uart_emul.h"
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/*
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* Pick a PCI vid/did of a chip with a single uart at
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* BAR0, that most versions of FreeBSD can understand:
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* Siig CyberSerial 1-port.
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*/
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#define COM_VENDOR 0x131f
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#define COM_DEV 0x2000
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static void
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pci_uart_intr_assert(void *arg)
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{
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struct pci_devinst *pi = arg;
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pci_lintr_assert(pi);
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}
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static void
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pci_uart_intr_deassert(void *arg)
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{
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struct pci_devinst *pi = arg;
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pci_lintr_deassert(pi);
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}
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static void
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pci_uart_write(struct vmctx *ctx, int vcpu, struct pci_devinst *pi,
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int baridx, uint64_t offset, int size, uint64_t value)
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{
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assert(baridx == 0);
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assert(size == 1);
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uart_write(pi->pi_arg, offset, value);
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}
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uint64_t
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pci_uart_read(struct vmctx *ctx, int vcpu, struct pci_devinst *pi,
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int baridx, uint64_t offset, int size)
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{
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uint8_t val;
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assert(baridx == 0);
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assert(size == 1);
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val = uart_read(pi->pi_arg, offset);
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return (val);
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}
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static int
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pci_uart_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
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{
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struct uart_softc *sc;
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pci_emul_alloc_bar(pi, 0, PCIBAR_IO, UART_IO_BAR_SIZE);
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pci_lintr_request(pi);
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/* initialize config space */
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pci_set_cfgdata16(pi, PCIR_DEVICE, COM_DEV);
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pci_set_cfgdata16(pi, PCIR_VENDOR, COM_VENDOR);
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pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_SIMPLECOMM);
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sc = uart_init(pci_uart_intr_assert, pci_uart_intr_deassert, pi);
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pi->pi_arg = sc;
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if (uart_set_backend(sc, opts) != 0) {
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fprintf(stderr, "Unable to initialize backend '%s' for "
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"pci uart at %d:%d\n", opts, pi->pi_slot, pi->pi_func);
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return (-1);
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}
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return (0);
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}
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struct pci_devemu pci_de_com = {
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.pe_emu = "uart",
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.pe_init = pci_uart_init,
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.pe_barwrite = pci_uart_write,
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.pe_barread = pci_uart_read
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};
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PCI_EMUL_SET(pci_de_com);
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