diff options
Diffstat (limited to 'voss_devctl.c')
| -rw-r--r-- | voss_devctl.c | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/voss_devctl.c b/voss_devctl.c deleted file mode 100644 index 1739b19..0000000 --- a/voss_devctl.c +++ /dev/null @@ -1,573 +0,0 @@ -#include <sys/types.h> -#include <sys/ioctl.h> -#include <sys/soundcard.h> -#include <sys/sysctl.h> - -#include <Xm/Xm.h> -#include <Xm/Form.h> -#include <Xm/Label.h> -#include <Xm/ComboBox.h> -#include <Xm/TextF.h> -#include <Xm/List.h> -#include <Xm/MessageB.h> -#include <Xm/ToggleB.h> - -#include <stdio.h> -#include <stdarg.h> -#include <stdlib.h> -#include <stdbool.h> -#include <unistd.h> -#include <string.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <assert.h> - -#include "virtual_oss.h" - -#define OSS_DEV "/dev/dsp0" -#define VOSS_DEV "/dev/dsp.ctl" - -#define XM_ROW_HEIGHT 50 -#define XM_BG_COLOR 0xF0F0F0 -#define XM_MSGBUF_LEN 256 - -#define OSS_DESCR_SIZE (OSS_DEVNODE_SIZE + OSS_LONGNAME_SIZE + 4) - -struct oss_dev { - int devnum; - char devnode[OSS_DEVNODE_SIZE]; - char descr[OSS_DESCR_SIZE]; - int caps; -}; - -struct oss_devlist { - int len; - int ct; - struct oss_dev *devs; -}; - -/* global variables */ -static int oss_dsp_fd, voss_dsp_fd; - -struct oss_devlist devs_play, devs_rec; - -static struct oss_sysinfo si; -static struct virtual_oss_system_info vsi; - - -/* dynamic list functions */ -void oss_devlist_init(struct oss_devlist *list) -{ - list->len = 10; - list->ct = 0; - list->devs = (struct oss_dev *)calloc( - list->len, sizeof(struct oss_dev) - ); -} - -void oss_devlist_add(struct oss_devlist *list, struct oss_audioinfo *ai) -{ - assert((list->ct < list->len) && (list->devs != NULL)); - - struct oss_dev *dev = &(list->devs[list->ct]); - - char descrbuf[OSS_DESCR_SIZE]; - snprintf(descrbuf, OSS_DESCR_SIZE, "%s: %s", - ai->devnode, ai->name); - dev->caps = ai->caps; - dev->devnum = ai->dev; - strncpy(dev->devnode, ai->devnode, OSS_DEVNODE_SIZE); - strncpy(dev->descr, descrbuf, OSS_DESCR_SIZE); - - list->ct++; - - /* extend the list if needed */ - if ((list->len - list->ct) <= 1) { - list->len += 10; - list->devs = (struct oss_dev *)realloc( - list->devs, list->len * sizeof(struct oss_dev) - ); - } -} - -void oss_devlist_free(struct oss_devlist *list) -{ - if (list->devs != NULL) { - free(list->devs); - } -} - - -/* lookup functions */ -char *oss_devnode_from_descr(const char *descr, struct oss_devlist *list) -{ - for (int i = 0; i < list->ct; i++) { - if (strncmp(descr, list->devs[i].descr, OSS_DESCR_SIZE) == 0) { - return list->devs[i].devnode; - } - } - __builtin_unreachable(); - return NULL; -} - -int oss_devnum_from_descr(const char *descr, struct oss_devlist *list) -{ - for (int i = 0; i < list->ct; i++) { - if (strncmp(descr, list->devs[i].descr, OSS_DESCR_SIZE) == 0) { - return list->devs[i].devnum; - } - } - __builtin_unreachable(); - return 0; -} - -char *oss_descr_from_devnode(const char *devnode, struct oss_devlist *list) -{ - for (int i = 0; i < list->ct; i++) { - if (strncmp(devnode, list->devs[i].devnode, OSS_DEVNODE_SIZE) == 0) { - return list->devs[i].descr; - } - } - return NULL; -} - -/* populate list of devices */ -void oss_enum_devs(int fd, int oss_numaudios) -{ - devs_play.ct = devs_rec.ct = 0; - - for (int i = 0; i < oss_numaudios; i++) { - struct oss_audioinfo ai = { .dev = i }; - - if (ioctl(fd, SNDCTL_AUDIOINFO, &ai) < 0) { - printf("OSS: could not get device %d info: %s\n", - i, strerror(errno)); - continue; - } - - if (!ai.enabled) { - continue; - } - - printf("%d: %s, %s\n", i, ai.name, ai.devnode); - - if (ai.caps & (PCM_CAP_OUTPUT | PCM_CAP_VIRTUAL)) { - oss_devlist_add(&devs_play, &ai); - } - if (ai.caps & PCM_CAP_INPUT) { - oss_devlist_add(&devs_rec, &ai); - } - } -} - -/* query device capabilities */ -int oss_get_caps(const char *path) -{ - int fd, dev_caps; - - if ((fd = open(path, O_WRONLY)) == -1) { - printf("Failed to open device %s: %s\n", - path, strerror(errno)); - return 0; - } - - if (ioctl(fd, SNDCTL_DSP_GETCAPS, &dev_caps) == -1) { - printf("Could not query capabilities for %s: %s\n", - path, strerror(errno)); - close(fd); - return 0; - } - - close(fd); - return dev_caps; -} - -/* center an Xt widget on the current display */ -void xt_move_to_center(Widget widget) -{ - Display *display = XtDisplay(widget); - int screen_number = 0; - for (int i = 0; i < ScreenCount(display); i++) { - if (ScreenOfDisplay(display, i) == XtScreen(widget)) { - screen_number = i; - break; - } - } - - Position screen_width = DisplayWidth(display, screen_number); - Position screen_height = DisplayHeight(display, screen_number); - - Dimension window_width, window_height; - XtVaGetValues(widget, XmNwidth, &window_width, XmNheight, &window_height, NULL); - - Position pos_x = (screen_width - window_width) / 2; - Position pos_y = (screen_height - window_height) / 2; - - XtVaSetValues(widget, XmNx, pos_x, XmNy, pos_y, NULL); -} - -void xm_show_dialog(Widget caller, char *message) -{ - Widget dialog; - - dialog = XmCreateInformationDialog(caller, "Message", NULL, 0); - - XmString xm_msg_str = XmStringCreateLocalized(message); - XtVaSetValues( - dialog, XmNmessageString, xm_msg_str, - XmNbackground, XM_BG_COLOR, - XmNwidth, 400, XmNheight, 200, NULL - ); - - XtVaSetValues(XtParent(dialog), XmNtitle, "Message", NULL); - - XtUnmanageChild(XmMessageBoxGetChild(dialog, XmDIALOG_CANCEL_BUTTON)); - XtUnmanageChild(XmMessageBoxGetChild(dialog, XmDIALOG_HELP_BUTTON)); - - xt_move_to_center(dialog); - - XtManageChild(dialog); - - XmStringFree(xm_msg_str); -} - -/* simply print out the current ComboBox selection */ -void xm_dev_select_callback(Widget caller, - XtPointer client_data __attribute__ ((unused)), - XtPointer call_data) -{ - XmComboBoxCallbackStruct *cb = (XmComboBoxCallbackStruct *)call_data; - - const char *caller_name = XtName(caller); - char *choice = (char *)XmStringUnparse( - cb->item_or_text, - XmFONTLIST_DEFAULT_TAG, - XmCHARSET_TEXT, XmCHARSET_TEXT, - NULL, 0, XmOUTPUT_ALL - ); - - char msg[XM_MSGBUF_LEN], options[VIRTUAL_OSS_OPTIONS_MAX]; - char flag; - char *devnode_name; - - int devnum_sel = 0; - size_t len = sizeof(int); - - if (strncmp(caller_name, "menu_rec", 8) == 0) { - flag = 'R'; - devnode_name = oss_devnode_from_descr(choice, &devs_rec); - } else { - flag = 'P'; - devnode_name = oss_devnode_from_descr(choice, &devs_play); - devnum_sel = oss_devnum_from_descr(choice, &devs_play); - sysctlbyname("hw.snd.default_unit", NULL, &len, &devnum_sel, len); - } - - if (cb->event != NULL) { - snprintf(options, VIRTUAL_OSS_OPTIONS_MAX, - "-%c %s", flag, devnode_name); - if (ioctl(voss_dsp_fd, VIRTUAL_OSS_ADD_OPTIONS, &options) < 0) { - snprintf(msg, XM_MSGBUF_LEN, - "Cannot set Virtual OSS device: %s", - strerror(errno)); - xm_show_dialog(caller, msg); - } - } - - XtFree(choice); -} - -/* enable or disable the widget, toggle VOSS device to /dev/null */ -void xm_toggle_menu_callback(Widget caller, - XtPointer client_data, - XtPointer call_data) -{ - Widget target_widget = (Widget)client_data; - - XmToggleButtonCallbackStruct *toggle_data = \ - (XmToggleButtonCallbackStruct *)call_data; - - const char *caller_name = XtName(caller); - - char flag = strncmp(caller_name, "toggle_rec", 10) ? 'P' : 'R'; - - char msg[XM_MSGBUF_LEN], options[VIRTUAL_OSS_OPTIONS_MAX]; - char *devnode_name; - - if (toggle_data->set) { - XtSetSensitive(target_widget, False); - devnode_name = "/dev/null"; - } else { - XtSetSensitive(target_widget, True); - - Widget menu_text_field = XtNameToWidget(target_widget, "*Text"); - char *menu_text = XmTextFieldGetString(menu_text_field); - - if (strncmp(caller_name, "menu_rec", 10) == 0) { - devnode_name = oss_devnode_from_descr(menu_text, &devs_rec); - } else { - devnode_name = oss_devnode_from_descr(menu_text, &devs_play); - } - - XtFree(menu_text); - } - - /* pass the new device options to virtual OSS */ - snprintf(options, VIRTUAL_OSS_OPTIONS_MAX, - "-%c %s", flag, devnode_name); - if (ioctl(voss_dsp_fd, VIRTUAL_OSS_ADD_OPTIONS, &options) < 0) { - snprintf(msg, XM_MSGBUF_LEN, - "Cannot set Virtual OSS device: %s", - strerror(errno)); - xm_show_dialog(caller, msg); - } -} - -void xm_gui_init(Widget toplevel) -{ - Widget container; - Widget label_rec, label_play; - Widget menu_rec, menu_play; - Widget toggle_rec, toggle_play; - XmStringTable str_list; - int i; - - XtVaSetValues(toplevel, XmNtitle, "Virtual OSS Device Selector", NULL); - - /* top-level container */ - container = XtVaCreateManagedWidget( - "container", xmFormWidgetClass, toplevel, - XmNmarginWidth, 20, XmNmarginHeight, 20, - XmNbackground, XM_BG_COLOR, NULL - ); - - /* label for output selection */ - label_play = XtVaCreateManagedWidget( - "label_play", xmLabelWidgetClass, container, - XmNlabelString, XmStringCreateLocalized("Playback Device"), - XmNheight, 50, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_FORM, - XmNleftAttachment, XmATTACH_FORM, NULL - ); - - /* populate list of output devices, if any found */ - str_list = (XmStringTable)XtMalloc(devs_play.ct * sizeof(XmString *)); - if (devs_play.ct) { - for (i = 0; i < devs_play.ct; i++) { - str_list[i] = XmStringCreateLocalized(devs_play.devs[i].descr); - } - } - - - /* output device selection menu */ - menu_play = XtVaCreateManagedWidget( - "menu_play", xmComboBoxWidgetClass, container, - XmNcomboBoxType, XmDROP_DOWN_LIST, - XmNheight, 50, XmNwidth, 600, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_WIDGET, XmNtopWidget, label_play, - XmNleftAttachment, XmATTACH_FORM, - XmNitemCount, devs_play.ct, XmNvisibleItemCount, devs_play.ct, - XmNitems, str_list, NULL - ); - XtAddCallback( - menu_play, XmNselectionCallback, - xm_dev_select_callback, NULL - ); - - /* output device toggle */ - toggle_play = XtVaCreateManagedWidget( - "toggle_play", xmToggleButtonWidgetClass, container, - XmNlabelString, XmStringCreateLocalized("Disabled"), - XmNheight, 50, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_WIDGET, XmNtopWidget, label_play, - XmNleftAttachment, XmATTACH_WIDGET, XmNleftWidget, menu_play, - XmNleftOffset, 10, NULL - ); - XtAddCallback( - toggle_play, XmNvalueChangedCallback, - xm_toggle_menu_callback, (XtPointer)menu_play - ); - - /* combo box clean up */ - if (devs_play.ct) { - for (i = 0; i < devs_play.ct; i++) { - XmStringFree(str_list[i]); - } - } else { - XtSetSensitive(menu_play, False); - XtSetSensitive(toggle_play, False); - } - XtFree((XtPointer)str_list); - - /* label for input device section */ - label_rec = XtVaCreateManagedWidget( - "label_rec", xmLabelWidgetClass, container, - XmNlabelString, XmStringCreateLocalized("Recording Device"), - XmNheight, 50, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_WIDGET, XmNtopWidget, menu_play, - XmNtopOffset, 20, - XmNleftAttachment, XmATTACH_FORM, NULL - ); - - /* populate list of input devices, if any found */ - str_list = (XmStringTable)XtMalloc(devs_rec.ct * sizeof(XmString *)); - if (devs_rec.ct) { - for (i = 0; i < devs_rec.ct; i++) { - str_list[i] = XmStringCreateLocalized(devs_rec.devs[i].descr); - } - } - - /* input device selection menu */ - menu_rec = XtVaCreateManagedWidget( - "menu_rec", xmComboBoxWidgetClass, container, - XmNcomboBoxType, XmDROP_DOWN_LIST, - XmNheight, 50, XmNwidth, 600, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_WIDGET, XmNtopWidget, label_rec, - XmNleftAttachment, XmATTACH_FORM, - XmNitemCount, devs_rec.ct, XmNvisibleItemCount, devs_rec.ct, - XmNitems, str_list, NULL - ); - XtAddCallback( - menu_rec, XmNselectionCallback, - xm_dev_select_callback, NULL - ); - - /* input device toggle */ - toggle_rec = XtVaCreateManagedWidget( - "toggle_rec", xmToggleButtonWidgetClass, container, - XmNlabelString, XmStringCreateLocalized("Disabled"), - XmNheight, 50, XmNbackground, XM_BG_COLOR, - XmNtopAttachment, XmATTACH_WIDGET, XmNtopWidget, label_rec, - XmNleftAttachment, XmATTACH_WIDGET, XmNleftWidget, menu_rec, - XmNleftOffset, 10, NULL - ); - XtAddCallback( - toggle_rec, XmNvalueChangedCallback, - xm_toggle_menu_callback, (XtPointer)menu_rec - ); - - /* combo box clean up */ - if (devs_rec.ct) { - for (i = 0; i < devs_rec.ct; i++) { - XmStringFree(str_list[i]); - } - } else { - XtSetSensitive(menu_rec, False); - XtSetSensitive(toggle_rec, False); - } - XtFree((XtPointer)str_list); - - /* pre-select the Virtual OSS playback device */ - if (strncmp("/dev/null", vsi.tx_device_name, 64) != 0) { - if ((oss_get_caps(vsi.tx_device_name) & (PCM_CAP_OUTPUT | PCM_CAP_VIRTUAL)) - && (oss_descr_from_devnode(vsi.tx_device_name, &devs_play) != NULL)) { - XmString opt_string = XmStringCreateLocalized( - oss_descr_from_devnode(vsi.tx_device_name, &devs_play) - ); - XmComboBoxSelectItem(menu_play, opt_string); - XmStringFree(opt_string); - } else { - Widget menu_text_field = XtNameToWidget(menu_play, "*Text"); - char *menu_text = XmTextFieldGetString(menu_text_field); - - char options[VIRTUAL_OSS_OPTIONS_MAX]; - snprintf(options, VIRTUAL_OSS_OPTIONS_MAX, - "-P %s", oss_devnode_from_descr(menu_text, &devs_play)); - ioctl(voss_dsp_fd, VIRTUAL_OSS_ADD_OPTIONS, &options); - - XtFree(menu_text); - } - } else { - XmToggleButtonSetState(toggle_play, True, False); - XtSetSensitive(menu_play, False); - } - - /* pre-select the Virtual OSS recording device */ - if (strncmp("/dev/null", vsi.rx_device_name, 64) != 0) { - if ((oss_get_caps(vsi.rx_device_name) & (PCM_CAP_INPUT | PCM_CAP_VIRTUAL)) - && (oss_descr_from_devnode(vsi.tx_device_name, &devs_rec) != NULL)) { - XmString opt_string = XmStringCreateLocalized( - oss_descr_from_devnode(vsi.rx_device_name, &devs_rec) - ); - XmComboBoxSelectItem(menu_rec, opt_string); - XmStringFree(opt_string); - } else { - Widget menu_text_field = XtNameToWidget(menu_rec, "*Text"); - char *menu_text = XmTextFieldGetString(menu_text_field); - - char options[VIRTUAL_OSS_OPTIONS_MAX]; - snprintf(options, VIRTUAL_OSS_OPTIONS_MAX, "-R %s", - oss_devnode_from_descr(menu_text, &devs_rec)); - ioctl(voss_dsp_fd, VIRTUAL_OSS_ADD_OPTIONS, &options); - - XtFree(menu_text); - } - } else { - XmToggleButtonSetState(toggle_rec, True, False); - XtSetSensitive(menu_rec, False); - } - - XtRealizeWidget(toplevel); - xt_move_to_center(toplevel); -} - -int main(int argc, char **argv) -{ - XtAppContext app; - Widget toplevel; - - /* initialize oss global information */ - if ((oss_dsp_fd = open(OSS_DEV, O_WRONLY)) == -1) { - printf("Failed to open device %s: %s\n", - OSS_DEV, strerror(errno)); - return -1; - } - if (ioctl(oss_dsp_fd, SNDCTL_SYSINFO, &si) < 0) { - printf("Cannot get OSS system info: %s\n", - strerror(errno)); - return -1; - } - - /* the same for Virtual OSS */ - if ((voss_dsp_fd = open(VOSS_DEV, O_WRONLY)) == -1) { - printf("Failed to open device %s: %s\n", - VOSS_DEV, strerror(errno)); - return -1; - } - if (ioctl(voss_dsp_fd, VIRTUAL_OSS_GET_SYSTEM_INFO, &vsi) < 0) { - printf("Cannot get Virtual OSS system info: %s\n", - strerror(errno)); - return -1; - } - - printf("OSS: Using %s version %s\n", si.product, si.version); - printf("OSS: %d device(s) available\n", si.numaudios - 1); - - oss_devlist_init(&devs_play); - oss_devlist_init(&devs_rec); - - oss_enum_devs(oss_dsp_fd, si.numaudios); - - XtSetLanguageProc(NULL, NULL, NULL); - - toplevel = XtVaOpenApplication( - &app, "Virtual OSS Device Selector", - NULL, 0, &argc, argv, NULL, sessionShellWidgetClass, - XmNwidth, 800, XmNheight, 280, NULL - ); - - xm_gui_init(toplevel); - - xt_move_to_center(toplevel); - - XtAppMainLoop(app); - - oss_devlist_free(&devs_play); - oss_devlist_free(&devs_rec); - - close(voss_dsp_fd); - close(oss_dsp_fd); - - return 0; -} |