[ALSA] PCM midlevel & PCM OSS - make procfs & OSS plugin code optional
[deliverable/linux.git] / sound / core / oss / pcm_plugin.c
index 6430410c6c04703af940b04f377b15fdb304572a..89bc8f965043972a99601d2c8e09e5e6953167b1 100644 (file)
@@ -25,6 +25,9 @@
 #endif
 
 #include <sound/driver.h>
+
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/vmalloc.h>
 #define snd_pcm_plug_first(plug) ((plug)->runtime->oss.plugin_first)
 #define snd_pcm_plug_last(plug) ((plug)->runtime->oss.plugin_last)
 
-static int snd_pcm_plugin_src_channels_mask(snd_pcm_plugin_t *plugin,
-                                           bitset_t *dst_vmask,
-                                           bitset_t **src_vmask)
+static int snd_pcm_plugin_src_channels_mask(struct snd_pcm_plugin *plugin,
+                                           unsigned long *dst_vmask,
+                                           unsigned long **src_vmask)
 {
-       bitset_t *vmask = plugin->src_vmask;
-       bitset_copy(vmask, dst_vmask, plugin->src_format.channels);
+       unsigned long *vmask = plugin->src_vmask;
+       bitmap_copy(vmask, dst_vmask, plugin->src_format.channels);
        *src_vmask = vmask;
        return 0;
 }
 
-static int snd_pcm_plugin_dst_channels_mask(snd_pcm_plugin_t *plugin,
-                                           bitset_t *src_vmask,
-                                           bitset_t **dst_vmask)
+static int snd_pcm_plugin_dst_channels_mask(struct snd_pcm_plugin *plugin,
+                                           unsigned long *src_vmask,
+                                           unsigned long **dst_vmask)
 {
-       bitset_t *vmask = plugin->dst_vmask;
-       bitset_copy(vmask, src_vmask, plugin->dst_format.channels);
+       unsigned long *vmask = plugin->dst_vmask;
+       bitmap_copy(vmask, src_vmask, plugin->dst_format.channels);
        *dst_vmask = vmask;
        return 0;
 }
@@ -67,13 +70,13 @@ static int rate_match(unsigned int src_rate, unsigned int dst_rate)
        return dst_rate >= low && dst_rate <= high;
 }
 
-static int snd_pcm_plugin_alloc(snd_pcm_plugin_t *plugin, snd_pcm_uframes_t frames)
+static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t frames)
 {
-       snd_pcm_plugin_format_t *format;
+       struct snd_pcm_plugin_format *format;
        ssize_t width;
        size_t size;
        unsigned int channel;
-       snd_pcm_plugin_channel_t *c;
+       struct snd_pcm_plugin_channel *c;
 
        if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                format = &plugin->src_format;
@@ -120,12 +123,12 @@ static int snd_pcm_plugin_alloc(snd_pcm_plugin_t *plugin, snd_pcm_uframes_t fram
        return 0;
 }
 
-int snd_pcm_plug_alloc(snd_pcm_plug_t *plug, snd_pcm_uframes_t frames)
+int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
 {
        int err;
        snd_assert(snd_pcm_plug_first(plug) != NULL, return -ENXIO);
        if (snd_pcm_plug_stream(plug) == SNDRV_PCM_STREAM_PLAYBACK) {
-               snd_pcm_plugin_t *plugin = snd_pcm_plug_first(plug);
+               struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);
                while (plugin->next) {
                        if (plugin->dst_frames)
                                frames = plugin->dst_frames(plugin, frames);
@@ -136,7 +139,7 @@ int snd_pcm_plug_alloc(snd_pcm_plug_t *plug, snd_pcm_uframes_t frames)
                                return err;
                }
        } else {
-               snd_pcm_plugin_t *plugin = snd_pcm_plug_last(plug);
+               struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);
                while (plugin->prev) {
                        if (plugin->src_frames)
                                frames = plugin->src_frames(plugin, frames);
@@ -151,27 +154,27 @@ int snd_pcm_plug_alloc(snd_pcm_plug_t *plug, snd_pcm_uframes_t frames)
 }
 
 
-snd_pcm_sframes_t snd_pcm_plugin_client_channels(snd_pcm_plugin_t *plugin,
+snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,
                                       snd_pcm_uframes_t frames,
-                                      snd_pcm_plugin_channel_t **channels)
+                                      struct snd_pcm_plugin_channel **channels)
 {
        *channels = plugin->buf_channels;
        return frames;
 }
 
-int snd_pcm_plugin_build(snd_pcm_plug_t *plug,
+int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
                         const char *name,
-                        snd_pcm_plugin_format_t *src_format,
-                        snd_pcm_plugin_format_t *dst_format,
+                        struct snd_pcm_plugin_format *src_format,
+                        struct snd_pcm_plugin_format *dst_format,
                         size_t extra,
-                        snd_pcm_plugin_t **ret)
+                        struct snd_pcm_plugin **ret)
 {
-       snd_pcm_plugin_t *plugin;
+       struct snd_pcm_plugin *plugin;
        unsigned int channels;
        
        snd_assert(plug != NULL, return -ENXIO);
        snd_assert(src_format != NULL && dst_format != NULL, return -ENXIO);
-       plugin = kcalloc(1, sizeof(*plugin) + extra, GFP_KERNEL);
+       plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);
        if (plugin == NULL)
                return -ENOMEM;
        plugin->name = name;
@@ -193,12 +196,12 @@ int snd_pcm_plugin_build(snd_pcm_plug_t *plug,
                snd_pcm_plugin_free(plugin);
                return -ENOMEM;
        }
-       plugin->src_vmask = bitset_alloc(src_format->channels);
+       plugin->src_vmask = bitmap_alloc(src_format->channels);
        if (plugin->src_vmask == NULL) {
                snd_pcm_plugin_free(plugin);
                return -ENOMEM;
        }
-       plugin->dst_vmask = bitset_alloc(dst_format->channels);
+       plugin->dst_vmask = bitmap_alloc(dst_format->channels);
        if (plugin->dst_vmask == NULL) {
                snd_pcm_plugin_free(plugin);
                return -ENOMEM;
@@ -210,7 +213,7 @@ int snd_pcm_plugin_build(snd_pcm_plug_t *plug,
        return 0;
 }
 
-int snd_pcm_plugin_free(snd_pcm_plugin_t *plugin)
+int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)
 {
        if (! plugin)
                return 0;
@@ -224,9 +227,9 @@ int snd_pcm_plugin_free(snd_pcm_plugin_t *plugin)
        return 0;
 }
 
-snd_pcm_sframes_t snd_pcm_plug_client_size(snd_pcm_plug_t *plug, snd_pcm_uframes_t drv_frames)
+snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_pcm_uframes_t drv_frames)
 {
-       snd_pcm_plugin_t *plugin, *plugin_prev, *plugin_next;
+       struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
        int stream = snd_pcm_plug_stream(plug);
 
        snd_assert(plug != NULL, return -ENXIO);
@@ -253,9 +256,9 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(snd_pcm_plug_t *plug, snd_pcm_uframes
        return drv_frames;
 }
 
-snd_pcm_sframes_t snd_pcm_plug_slave_size(snd_pcm_plug_t *plug, snd_pcm_uframes_t clt_frames)
+snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pcm_uframes_t clt_frames)
 {
-       snd_pcm_plugin_t *plugin, *plugin_prev, *plugin_next;
+       struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
        snd_pcm_sframes_t frames;
        int stream = snd_pcm_plug_stream(plug);
        
@@ -290,9 +293,9 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(snd_pcm_plug_t *plug, snd_pcm_uframes_
        return frames;
 }
 
-static int snd_pcm_plug_formats(snd_mask_t *mask, int format)
+static int snd_pcm_plug_formats(struct snd_mask *mask, int format)
 {
-       snd_mask_t formats = *mask;
+       struct snd_mask formats = *mask;
        u64 linfmts = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
                       SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE |
                       SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE |
@@ -326,7 +329,7 @@ static int preferred_formats[] = {
        SNDRV_PCM_FORMAT_U8
 };
 
-int snd_pcm_plug_slave_format(int format, snd_mask_t *format_mask)
+int snd_pcm_plug_slave_format(int format, struct snd_mask *format_mask)
 {
        if (snd_mask_test(format_mask, format))
                return format;
@@ -376,15 +379,15 @@ int snd_pcm_plug_slave_format(int format, snd_mask_t *format_mask)
        }
 }
 
-int snd_pcm_plug_format_plugins(snd_pcm_plug_t *plug,
-                               snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_params_t *slave_params)
+int snd_pcm_plug_format_plugins(struct snd_pcm_substream *plug,
+                               struct snd_pcm_hw_params *params,
+                               struct snd_pcm_hw_params *slave_params)
 {
-       snd_pcm_plugin_format_t tmpformat;
-       snd_pcm_plugin_format_t dstformat;
-       snd_pcm_plugin_format_t srcformat;
+       struct snd_pcm_plugin_format tmpformat;
+       struct snd_pcm_plugin_format dstformat;
+       struct snd_pcm_plugin_format srcformat;
        int src_access, dst_access;
-       snd_pcm_plugin_t *plugin = NULL;
+       struct snd_pcm_plugin *plugin = NULL;
        int err;
        int stream = snd_pcm_plug_stream(plug);
        int slave_interleaved = (params_channels(slave_params) == 1 ||
@@ -462,7 +465,7 @@ int snd_pcm_plug_format_plugins(snd_pcm_plug_t *plug,
        if (srcformat.channels > dstformat.channels) {
                int sv = srcformat.channels;
                int dv = dstformat.channels;
-               route_ttable_entry_t *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
+               int *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
                if (ttable == NULL)
                        return -ENOMEM;
 #if 1
@@ -525,7 +528,7 @@ int snd_pcm_plug_format_plugins(snd_pcm_plug_t *plug,
        if (srcformat.channels < dstformat.channels) {
                int sv = srcformat.channels;
                int dv = dstformat.channels;
-               route_ttable_entry_t *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
+               int *ttable = kcalloc(dv * sv, sizeof(*ttable), GFP_KERNEL);
                if (ttable == NULL)
                        return -ENOMEM;
 #if 0
@@ -614,14 +617,14 @@ int snd_pcm_plug_format_plugins(snd_pcm_plug_t *plug,
        return 0;
 }
 
-snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(snd_pcm_plug_t *plug,
+snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *plug,
                                         char *buf,
                                         snd_pcm_uframes_t count,
-                                        snd_pcm_plugin_channel_t **channels)
+                                        struct snd_pcm_plugin_channel **channels)
 {
-       snd_pcm_plugin_t *plugin;
-       snd_pcm_plugin_channel_t *v;
-       snd_pcm_plugin_format_t *format;
+       struct snd_pcm_plugin *plugin;
+       struct snd_pcm_plugin_channel *v;
+       struct snd_pcm_plugin_format *format;
        int width, nchannels, channel;
        int stream = snd_pcm_plug_stream(plug);
 
@@ -650,19 +653,19 @@ snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(snd_pcm_plug_t *plug,
        return count;
 }
 
-static int snd_pcm_plug_playback_channels_mask(snd_pcm_plug_t *plug,
-                                              bitset_t *client_vmask)
+static int snd_pcm_plug_playback_channels_mask(struct snd_pcm_substream *plug,
+                                              unsigned long *client_vmask)
 {
-       snd_pcm_plugin_t *plugin = snd_pcm_plug_last(plug);
+       struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);
        if (plugin == NULL) {
                return 0;
        } else {
                int schannels = plugin->dst_format.channels;
-               bitset_t bs[bitset_size(schannels)];
-               bitset_t *srcmask;
-               bitset_t *dstmask = bs;
+               DECLARE_BITMAP(bs, schannels);
+               unsigned long *srcmask;
+               unsigned long *dstmask = bs;
                int err;
-               bitset_one(dstmask, schannels);
+               bitmap_fill(dstmask, schannels);
 
                while (1) {
                        err = plugin->src_channels_mask(plugin, dstmask, &srcmask);
@@ -673,52 +676,52 @@ static int snd_pcm_plug_playback_channels_mask(snd_pcm_plug_t *plug,
                                break;
                        plugin = plugin->prev;
                }
-               bitset_and(client_vmask, dstmask, plugin->src_format.channels);
+               bitmap_and(client_vmask, client_vmask, dstmask, plugin->src_format.channels);
                return 0;
        }
 }
 
-static int snd_pcm_plug_playback_disable_useless_channels(snd_pcm_plug_t *plug,
-                                                         snd_pcm_plugin_channel_t *src_channels)
+static int snd_pcm_plug_playback_disable_useless_channels(struct snd_pcm_substream *plug,
+                                                         struct snd_pcm_plugin_channel *src_channels)
 {
-       snd_pcm_plugin_t *plugin = snd_pcm_plug_first(plug);
+       struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);
        unsigned int nchannels = plugin->src_format.channels;
-       bitset_t bs[bitset_size(nchannels)];
-       bitset_t *srcmask = bs;
+       DECLARE_BITMAP(bs, nchannels);
+       unsigned long *srcmask = bs;
        int err;
        unsigned int channel;
        for (channel = 0; channel < nchannels; channel++) {
                if (src_channels[channel].enabled)
-                       bitset_set(srcmask, channel);
+                       set_bit(channel, srcmask);
                else
-                       bitset_reset(srcmask, channel);
+                       clear_bit(channel, srcmask);
        }
        err = snd_pcm_plug_playback_channels_mask(plug, srcmask);
        if (err < 0)
                return err;
        for (channel = 0; channel < nchannels; channel++) {
-               if (!bitset_get(srcmask, channel))
+               if (!test_bit(channel, srcmask))
                        src_channels[channel].enabled = 0;
        }
        return 0;
 }
 
-static int snd_pcm_plug_capture_disable_useless_channels(snd_pcm_plug_t *plug,
-                                                        snd_pcm_plugin_channel_t *src_channels,
-                                                        snd_pcm_plugin_channel_t *client_channels)
+static int snd_pcm_plug_capture_disable_useless_channels(struct snd_pcm_substream *plug,
+                                                        struct snd_pcm_plugin_channel *src_channels,
+                                                        struct snd_pcm_plugin_channel *client_channels)
 {
-       snd_pcm_plugin_t *plugin = snd_pcm_plug_last(plug);
+       struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);
        unsigned int nchannels = plugin->dst_format.channels;
-       bitset_t bs[bitset_size(nchannels)];
-       bitset_t *dstmask = bs;
-       bitset_t *srcmask;
+       DECLARE_BITMAP(bs, nchannels);
+       unsigned long *dstmask = bs;
+       unsigned long *srcmask;
        int err;
        unsigned int channel;
        for (channel = 0; channel < nchannels; channel++) {
                if (client_channels[channel].enabled)
-                       bitset_set(dstmask, channel);
+                       set_bit(channel, dstmask);
                else
-                       bitset_reset(dstmask, channel);
+                       clear_bit(channel, dstmask);
        }
        while (plugin) {
                err = plugin->src_channels_mask(plugin, dstmask, &srcmask);
@@ -730,16 +733,16 @@ static int snd_pcm_plug_capture_disable_useless_channels(snd_pcm_plug_t *plug,
        plugin = snd_pcm_plug_first(plug);
        nchannels = plugin->src_format.channels;
        for (channel = 0; channel < nchannels; channel++) {
-               if (!bitset_get(dstmask, channel))
+               if (!test_bit(channel, dstmask))
                        src_channels[channel].enabled = 0;
        }
        return 0;
 }
 
-snd_pcm_sframes_t snd_pcm_plug_write_transfer(snd_pcm_plug_t *plug, snd_pcm_plugin_channel_t *src_channels, snd_pcm_uframes_t size)
+snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *plug, struct snd_pcm_plugin_channel *src_channels, snd_pcm_uframes_t size)
 {
-       snd_pcm_plugin_t *plugin, *next;
-       snd_pcm_plugin_channel_t *dst_channels;
+       struct snd_pcm_plugin *plugin, *next;
+       struct snd_pcm_plugin_channel *dst_channels;
        int err;
        snd_pcm_sframes_t frames = size;
 
@@ -771,10 +774,10 @@ snd_pcm_sframes_t snd_pcm_plug_write_transfer(snd_pcm_plug_t *plug, snd_pcm_plug
        return snd_pcm_plug_client_size(plug, frames);
 }
 
-snd_pcm_sframes_t snd_pcm_plug_read_transfer(snd_pcm_plug_t *plug, snd_pcm_plugin_channel_t *dst_channels_final, snd_pcm_uframes_t size)
+snd_pcm_sframes_t snd_pcm_plug_read_transfer(struct snd_pcm_substream *plug, struct snd_pcm_plugin_channel *dst_channels_final, snd_pcm_uframes_t size)
 {
-       snd_pcm_plugin_t *plugin, *next;
-       snd_pcm_plugin_channel_t *src_channels, *dst_channels;
+       struct snd_pcm_plugin *plugin, *next;
+       struct snd_pcm_plugin_channel *src_channels, *dst_channels;
        snd_pcm_sframes_t frames = size;
        int err;
 
@@ -806,7 +809,7 @@ snd_pcm_sframes_t snd_pcm_plug_read_transfer(snd_pcm_plug_t *plug, snd_pcm_plugi
        return frames;
 }
 
-int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_area, size_t dst_offset,
+int snd_pcm_area_silence(const struct snd_pcm_channel_area *dst_area, size_t dst_offset,
                         size_t samples, int format)
 {
        /* FIXME: sub byte resolution and odd dst_offset */
@@ -852,8 +855,8 @@ int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_area, size_t dst_offs
        return 0;
 }
 
-int snd_pcm_area_copy(const snd_pcm_channel_area_t *src_area, size_t src_offset,
-                     const snd_pcm_channel_area_t *dst_area, size_t dst_offset,
+int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_area, size_t src_offset,
+                     const struct snd_pcm_channel_area *dst_area, size_t dst_offset,
                      size_t samples, int format)
 {
        /* FIXME: sub byte resolution and odd dst_offset */
@@ -916,3 +919,5 @@ int snd_pcm_area_copy(const snd_pcm_channel_area_t *src_area, size_t src_offset,
        }
        return 0;
 }
+
+#endif
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