302 lines
8.5 KiB
C
302 lines
8.5 KiB
C
/*
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* OSS driver (unixlib)
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*
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* Copyright 2011 Andrew Eikum for CodeWeavers
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* 2022 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if 0
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#pragma makedep unix
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#endif
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#include <stdarg.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/soundcard.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "winternl.h"
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#include "audioclient.h"
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#include "wine/debug.h"
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#include "wine/unixlib.h"
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#include "unixlib.h"
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WINE_DEFAULT_DEBUG_CHANNEL(oss);
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static NTSTATUS test_connect(void *args)
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{
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struct test_connect_params *params = args;
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int mixer_fd;
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oss_sysinfo sysinfo;
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/* Attempt to determine if we are running on OSS or ALSA's OSS
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* compatibility layer. There is no official way to do that, so just check
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* for validity as best as possible, without rejecting valid OSS
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* implementations. */
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mixer_fd = open("/dev/mixer", O_RDONLY, 0);
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if(mixer_fd < 0){
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TRACE("Priority_Unavailable: open failed\n");
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params->priority = Priority_Unavailable;
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return STATUS_SUCCESS;
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}
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sysinfo.version[0] = 0xFF;
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sysinfo.versionnum = ~0;
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if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
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TRACE("Priority_Unavailable: ioctl failed\n");
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close(mixer_fd);
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params->priority = Priority_Unavailable;
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return STATUS_SUCCESS;
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}
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close(mixer_fd);
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if(sysinfo.version[0] < '4' || sysinfo.version[0] > '9'){
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TRACE("Priority_Low: sysinfo.version[0]: %x\n", sysinfo.version[0]);
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params->priority = Priority_Low;
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return STATUS_SUCCESS;
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}
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if(sysinfo.versionnum & 0x80000000){
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TRACE("Priority_Low: sysinfo.versionnum: %x\n", sysinfo.versionnum);
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params->priority = Priority_Low;
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return STATUS_SUCCESS;
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}
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TRACE("Priority_Preferred: Seems like valid OSS!\n");
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params->priority = Priority_Preferred;
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return STATUS_SUCCESS;
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}
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/* dst must be large enough to hold devnode */
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static void oss_clean_devnode(char *dest, const char *devnode)
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{
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const char *dot, *slash;
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size_t len;
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strcpy(dest, devnode);
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dot = strrchr(dest, '.');
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if(!dot)
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return;
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slash = strrchr(dest, '/');
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if(slash && dot < slash)
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return;
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len = dot - dest;
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dest[len] = '\0';
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}
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static int open_device(const char *device, EDataFlow flow)
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{
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int flags = ((flow == eRender) ? O_WRONLY : O_RDONLY) | O_NONBLOCK;
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return open(device, flags, 0);
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}
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static void get_default_device(EDataFlow flow, char device[OSS_DEVNODE_SIZE])
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{
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int fd, err;
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oss_audioinfo ai;
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device[0] = '\0';
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fd = open_device("/dev/dsp", flow);
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if(fd < 0){
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WARN("Couldn't open default device!\n");
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return;
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}
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ai.dev = -1;
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if((err = ioctl(fd, SNDCTL_ENGINEINFO, &ai)) < 0){
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WARN("SNDCTL_ENGINEINFO failed: %d (%s)\n", err, strerror(errno));
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close(fd);
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return;
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}
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close(fd);
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TRACE("Default devnode: %s\n", ai.devnode);
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oss_clean_devnode(device, ai.devnode);
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return;
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}
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static NTSTATUS get_endpoint_ids(void *args)
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{
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struct get_endpoint_ids_params *params = args;
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oss_sysinfo sysinfo;
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oss_audioinfo ai;
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static int print_once = 0;
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static const WCHAR outW[] = {'O','u','t',':',' ',0};
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static const WCHAR inW[] = {'I','n',':',' ',0};
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struct endpoint_info
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{
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WCHAR name[ARRAY_SIZE(ai.name) + ARRAY_SIZE(outW)];
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char device[OSS_DEVNODE_SIZE];
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} *info;
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unsigned int i, j, num, needed, name_len, device_len, default_idx = 0;
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char default_device[OSS_DEVNODE_SIZE];
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struct endpoint *endpoint;
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int mixer_fd;
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char *ptr;
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mixer_fd = open("/dev/mixer", O_RDONLY, 0);
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if(mixer_fd < 0){
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ERR("OSS /dev/mixer doesn't seem to exist\n");
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params->result = AUDCLNT_E_SERVICE_NOT_RUNNING;
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return STATUS_SUCCESS;
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}
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if(ioctl(mixer_fd, SNDCTL_SYSINFO, &sysinfo) < 0){
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close(mixer_fd);
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if(errno == EINVAL){
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ERR("OSS version too old, need at least OSSv4\n");
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params->result = AUDCLNT_E_SERVICE_NOT_RUNNING;
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return STATUS_SUCCESS;
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}
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ERR("Error getting SNDCTL_SYSINFO: %d (%s)\n", errno, strerror(errno));
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params->result = E_FAIL;
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return STATUS_SUCCESS;
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}
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if(!print_once){
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TRACE("OSS sysinfo:\n");
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TRACE("product: %s\n", sysinfo.product);
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TRACE("version: %s\n", sysinfo.version);
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TRACE("versionnum: %x\n", sysinfo.versionnum);
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TRACE("numaudios: %d\n", sysinfo.numaudios);
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TRACE("nummixers: %d\n", sysinfo.nummixers);
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TRACE("numcards: %d\n", sysinfo.numcards);
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TRACE("numaudioengines: %d\n", sysinfo.numaudioengines);
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print_once = 1;
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}
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if(sysinfo.numaudios <= 0){
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WARN("No audio devices!\n");
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close(mixer_fd);
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params->result = AUDCLNT_E_SERVICE_NOT_RUNNING;
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return STATUS_SUCCESS;
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}
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info = malloc(sysinfo.numaudios * sizeof(*info));
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if(!info){
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close(mixer_fd);
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params->result = E_OUTOFMEMORY;
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return STATUS_SUCCESS;
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}
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get_default_device(params->flow, default_device);
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num = 0;
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for(i = 0; i < sysinfo.numaudios; ++i){
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char devnode[OSS_DEVNODE_SIZE];
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int fd, prefix_len;
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const WCHAR *prefix;
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memset(&ai, 0, sizeof(ai));
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ai.dev = i;
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if(ioctl(mixer_fd, SNDCTL_AUDIOINFO, &ai) < 0){
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WARN("Error getting AUDIOINFO for dev %d: %d (%s)\n", i, errno,
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strerror(errno));
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continue;
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}
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oss_clean_devnode(devnode, ai.devnode);
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/* check for duplicates */
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for(j = 0; j < num; j++)
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if(!strcmp(devnode, info[j].device))
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break;
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if(j < num)
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continue;
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fd = open_device(devnode, params->flow);
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if(fd < 0){
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WARN("Opening device \"%s\" failed, pretending it doesn't exist: %d (%s)\n",
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devnode, errno, strerror(errno));
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continue;
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}
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close(fd);
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if((params->flow == eCapture && !(ai.caps & PCM_CAP_INPUT)) ||
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(params->flow == eRender && !(ai.caps & PCM_CAP_OUTPUT)))
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continue;
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strcpy(info[num].device, devnode);
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if(params->flow == eRender){
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prefix = outW;
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prefix_len = ARRAY_SIZE(outW) - 1;
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}else{
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prefix = inW;
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prefix_len = ARRAY_SIZE(inW) - 1;
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}
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memcpy(info[num].name, prefix, prefix_len * sizeof(WCHAR));
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ntdll_umbstowcs(ai.name, strlen(ai.name) + 1, info[num].name + prefix_len,
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ARRAY_SIZE(info[num].name) - prefix_len);
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if(!strcmp(default_device, info[num].device))
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default_idx = num;
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num++;
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}
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close(mixer_fd);
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needed = num * sizeof(*params->endpoints);
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endpoint = params->endpoints;
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ptr = (char *)(endpoint + num);
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for(i = 0; i < num; i++){
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name_len = wcslen(info[i].name) + 1;
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device_len = strlen(info[i].device) + 1;
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needed += name_len * sizeof(WCHAR) + ((device_len + 1) & ~1);
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if(needed <= params->size){
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endpoint->name = (WCHAR *)ptr;
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memcpy(endpoint->name, info[i].name, name_len * sizeof(WCHAR));
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ptr += name_len * sizeof(WCHAR);
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endpoint->device = ptr;
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memcpy(endpoint->device, info[i].device, device_len);
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ptr += (device_len + 1) & ~1;
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endpoint++;
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}
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}
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free(info);
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params->num = num;
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params->default_idx = default_idx;
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if(needed > params->size){
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params->size = needed;
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params->result = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
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} else
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params->result = S_OK;
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return STATUS_SUCCESS;
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}
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unixlib_entry_t __wine_unix_call_funcs[] =
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{
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test_connect,
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get_endpoint_ids,
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};
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