make module-oss-* use modargs

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@63 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/main.c

@@ -42,7 +42,7 @@ int main(int argc, char *argv[]) {
     c = pa_core_new(pa_mainloop_get_api(mainloop));
     assert(c);
     
-    pa_module_load(c, "module-oss-mmap", "/dev/dsp");
+    pa_module_load(c, "module-oss-mmap", "device=/dev/dsp playback=1 record=1");
 /*    pa_module_load(c, "module-oss-mmap", "/dev/dsp1");*/
 /*    pa_module_load(c, "module-pipe-sink", NULL);*/
     pa_module_load(c, "module-simple-protocol-tcp", NULL);

src/module-oss-mmap.c

@@ -18,6 +18,7 @@
 #include "oss-util.h"
 #include "sample-util.h"
 #include "util.h"
+#include "modargs.h"
 
 struct userdata {
     struct pa_sink *sink;
@@ -38,8 +39,18 @@ struct userdata {
     unsigned out_current, in_current;
 };
 
-void module_done(struct pa_core *c, struct pa_module*m);
+static const char* const valid_modargs[] = {
+    "sink_name",
+    "source_name",
+    "device",
+    "record",
+    "playback",
+    NULL
+};
 
+#define DEFAULT_SINK_NAME "oss_output"
+#define DEFAULT_SOURCE_NAME "oss_input"
+#define DEFAULT_DEVICE "/dev/dsp"
 
 static void out_fill_memblocks(struct userdata *u, unsigned n) {
     assert(u && u->out_memblocks);
@@ -163,10 +174,12 @@ static uint32_t sink_get_latency_cb(struct pa_sink *s) {
 int pa_module_init(struct pa_core *c, struct pa_module*m) {
     struct audio_buf_info info;
     struct userdata *u = NULL;
-    char *p;
+    const char *p;
     int frag_size;
-    int mode, caps, caps_read = 0;
+    int mode, caps;
     int enable_bits = 0, zero = 0;
+    int playback = 1, record = 1;
+    struct pa_modargs *ma = NULL;
     assert(c && m);
 
     m->userdata = u = malloc(sizeof(struct userdata));
@@ -174,39 +187,26 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     memset(u, 0, sizeof(struct userdata));
     u->fd = -1;
     u->core = c;
+
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+        fprintf(stderr, __FILE__": failed to parse module arguments.\n");
+        goto fail;
+    }
     
-    p = m->argument ? m->argument : "/dev/dsp";
-    if ((u->fd = open(p, (mode = O_RDWR)|O_NDELAY)) >= 0) {
-        ioctl(u->fd, SNDCTL_DSP_SETDUPLEX, 0);
-        
-        if (ioctl(u->fd, SNDCTL_DSP_GETCAPS, &caps) < 0) {
-            fprintf(stderr, "SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
-            goto fail;
-        }
-
-        if (!(caps & DSP_CAP_DUPLEX)) {
-            close(u->fd);
-            u->fd = -1;
-        } else
-            caps_read = 1;
+    if (pa_modargs_get_value_u32(ma, "record", &record) < 0 || pa_modargs_get_value_u32(ma, "playback", &playback) < 0) {
+        fprintf(stderr, __FILE__": record= and playback= expect numeric arguments.\n");
+        goto fail;
     }
 
-    if (u->fd < 0) {
-        if ((u->fd = open(p, (mode = O_WRONLY)|O_NDELAY)) < 0) {
-            if ((u->fd = open(p, (mode = O_RDONLY)|O_NDELAY)) < 0) {
-                fprintf(stderr, "open('%s'): %s\n", p, strerror(errno));
-                goto fail;
-            }
-        }
+    mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
+    if (mode == 0) {
+        fprintf(stderr, __FILE__": neither playback nor record enabled for device.\n");
+        goto fail;
     }
 
-    if (!caps_read) {
-        if (ioctl(u->fd, SNDCTL_DSP_GETCAPS, &caps) < 0) {
-            fprintf(stderr, "SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
-            goto fail;
-        }
-    }
-        
+    if ((u->fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0)
+        goto fail;
+
     if (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_REALTIME) || !(caps & DSP_CAP_TRIGGER)) {
         fprintf(stderr, "OSS device not mmap capable.\n");
         goto fail;
@@ -242,7 +242,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
             }
         } else {
         
-            u->source = pa_source_new(c, "oss_input", 0, &u->sample_spec);
+            u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &u->sample_spec);
             assert(u->source);
             u->source->userdata = u;
             pa_source_set_owner(u->source, m);
@@ -276,7 +276,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
         } else {
             pa_silence_memory(u->out_mmap, u->out_mmap_length, &u->sample_spec);
             
-            u->sink = pa_sink_new(c, "oss_output", 0, &u->sample_spec);
+            u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &u->sample_spec);
             assert(u->sink);
             u->sink->get_latency = sink_get_latency_cb;
             u->sink->userdata = u;
@@ -309,7 +309,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     return 0;
 
 fail:
-    module_done(c, m);
+    pa_module_done(c, m);
 
     return -1;
 }

src/module-oss.c

@@ -17,6 +17,7 @@
 #include "oss-util.h"
 #include "sample-util.h"
 #include "util.h"
+#include "modargs.h"
 
 struct userdata {
     struct pa_sink *sink;
@@ -31,6 +32,19 @@ struct userdata {
     int fd;
 };
 
+static const char* const valid_modargs[] = {
+    "sink_name",
+    "source_name",
+    "device",
+    "record",
+    "playback",
+    NULL
+};
+
+#define DEFAULT_SINK_NAME "oss_output"
+#define DEFAULT_SOURCE_NAME "oss_input"
+#define DEFAULT_DEVICE "/dev/dsp"
+
 static void do_write(struct userdata *u) {
     struct pa_memchunk *memchunk;
     ssize_t r;
@@ -115,39 +129,34 @@ static uint32_t sink_get_latency_cb(struct pa_sink *s) {
 int pa_module_init(struct pa_core *c, struct pa_module*m) {
     struct audio_buf_info info;
     struct userdata *u = NULL;
-    char *p;
+    const char *p;
     int fd = -1;
     int frag_size, in_frag_size, out_frag_size;
     int mode;
+    uint32_t record = 1, playback = 1;
     struct pa_sample_spec ss;
+    struct pa_modargs *ma = NULL;
     assert(c && m);
 
-    p = m->argument ? m->argument : "/dev/dsp";
-    if ((fd = open(p, (mode = O_RDWR)|O_NDELAY)) >= 0) {
-        int caps;
-
-        ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);
-        
-        if (ioctl(fd, SNDCTL_DSP_GETCAPS, &caps) < 0) {
-            fprintf(stderr, "SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
-            goto fail;
-        }
-
-        if (!(caps & DSP_CAP_DUPLEX)) {
-            close(fd);
-            fd = -1;
-        }
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+        fprintf(stderr, __FILE__": failed to parse module arguments.\n");
+        goto fail;
+    }
+    
+    if (pa_modargs_get_value_u32(ma, "record", &record) < 0 || pa_modargs_get_value_u32(ma, "playback", &playback) < 0) {
+        fprintf(stderr, __FILE__": record= and playback= expect numeric argument.\n");
+        goto fail;
     }
 
-    if (fd < 0) {
-        if ((fd = open(p, (mode = O_WRONLY)|O_NDELAY)) < 0) {
-            if ((fd = open(p, (mode = O_RDONLY)|O_NDELAY)) < 0) {
-                fprintf(stderr, "open('%s'): %s\n", p, strerror(errno));
-                goto fail;
-            }
-        }
+    mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
+    if (mode == 0) {
+        fprintf(stderr, __FILE__": neither playback nor record enabled for device.\n");
+        goto fail;
     }
 
+    if ((fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, NULL)) < 0)
+        goto fail;
+
     fprintf(stderr, "module-oss: device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
     
     frag_size = ((int) 12 << 16) | 10; /* nfrags = 12; frag_size = 2^10 */
@@ -182,7 +191,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     u->core = c;
 
     if (mode != O_WRONLY) {
-        u->source = pa_source_new(c, "oss_input", 0, &ss);
+        u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss);
         assert(u->source);
         u->source->userdata = u;
         pa_source_set_owner(u->source, m);
@@ -191,7 +200,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
         u->source = NULL;
 
     if (mode != O_RDONLY) {
-        u->sink = pa_sink_new(c, "oss_output", 0, &ss);
+        u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss);
         assert(u->sink);
         u->sink->get_latency = sink_get_latency_cb;
         u->sink->userdata = u;
@@ -226,6 +235,9 @@ fail:
     if (fd >= 0)
         close(fd);
 
+    if (ma)
+        pa_modargs_free(ma);
+    
     return -1;
 }
 

src/module-pipe-sink.c

@@ -34,7 +34,7 @@ static const char* const valid_modargs[] = {
     "rate",
     "channels",
     "format",
-    "sink",
+    "sink_name",
     NULL
 };
 
@@ -131,7 +131,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     assert(u->filename);
     u->core = c;
     
-    if (!(u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink", DEFAULT_SINK_NAME), 0, &ss))) {
+    if (!(u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss))) {
         fprintf(stderr, __FILE__": failed to create sink.\n");
         goto fail;
     }

src/oss-util.c

@@ -4,9 +4,63 @@
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
 
 #include "oss-util.h"
 
+int pa_oss_open(const char *device, int *mode, int* pcaps) {
+    int fd = -1;
+    assert(device && mode && (*mode == O_RDWR || *mode == O_RDONLY || *mode == O_WRONLY));
+
+    if (*mode == O_RDWR) {
+        if ((fd = open(device, O_RDWR|O_NDELAY)) >= 0) {
+            int dcaps, *tcaps;
+            ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);
+
+            tcaps = pcaps ? pcaps : &dcaps;
+            
+            if (ioctl(fd, SNDCTL_DSP_GETCAPS, tcaps) < 0) {
+                fprintf(stderr, __FILE__": SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
+                goto fail;
+            }
+
+            if (*tcaps & DSP_CAP_DUPLEX)
+                return fd;
+
+            close(fd);
+        }
+        
+        if ((fd = open(device, (*mode = O_WRONLY)|O_NDELAY)) < 0) {
+            if ((fd = open(device, (*mode = O_RDONLY)|O_NDELAY)) < 0) {
+                fprintf(stderr, __FILE__": open('%s'): %s\n", device, strerror(errno));
+                goto fail;
+            }
+        }
+    } else {
+        if ((fd = open(device, *mode|O_NDELAY)) < 0) {
+            fprintf(stderr, __FILE__": open('%s'): %s\n", device, strerror(errno));
+            goto fail;
+        }
+    } 
+
+    if (pcaps) {
+        if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) {
+            fprintf(stderr, "SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
+            goto fail;
+        }
+    }
+    
+    return fd;
+
+fail:
+    if (fd >= 0)
+        close(fd);
+    return fd;
+}
+
 int pa_oss_auto_format(int fd, struct pa_sample_spec *ss) {
     int format, channels, speed;
 

src/oss-util.h

@@ -3,6 +3,7 @@
 
 #include "sample.h"
 
+int pa_oss_open(const char *device, int *mode, int* pcaps);
 int pa_oss_auto_format(int fd, struct pa_sample_spec *ss);
 
 #endif

src/todo

@@ -1,13 +1,7 @@
 - native library/protocol:
        more functions (esp. latency)
 
-- make all modules use modargs.c:
-   module-oss.c
-   module-oss-mmap.c
-- cmdline
-- daemonizing
-
-- move more stuff from module-oss[-dma] to liboss-util
+- cmdline & daemonizing
 
 - prefix modules/libraries with pa_
 
@@ -17,7 +11,10 @@
 - svn-id and license in every file
 - documentation
 
-- eliminate global variables
+- eliminate global variables:
+            pa_default_sample_spec
+            pa_memblock_count
+            pa_memblock_total
 
 -- post 0.1
 - future cancellation
@@ -27,6 +24,7 @@
 - slp/rendezvous
 - doxygen
 - make mcalign merge chunks
+- modinfo
 
 drivers:
 - libao