ALSA: oxfw: move model-specific members from common structure

Currently, 'struct snd_oxfw' has some members for models supported by old
firewire-speakers driver, while these members are useless to the other
models.

This commit allocates new memory block and moves these members to
model-specific structure.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/oxfw/oxfw-spkr.c b/sound/firewire/oxfw/oxfw-spkr.c
index d733a15..fbdd432 100644 (file)
--- a/sound/firewire/oxfw/oxfw-spkr.c
+++ b/sound/firewire/oxfw/oxfw-spkr.c
@@ -7,6 +7,13 @@
 
 #include "oxfw.h"
 
+struct fw_spkr {
+       bool mute;
+       s16 volume[6];
+       s16 volume_min;
+       s16 volume_max;
+};
+
 enum control_action { CTL_READ, CTL_WRITE };
 enum control_attribute {
        CTL_MIN         = 0x02,
@@ -135,8 +142,9 @@ static int spkr_mute_get(struct snd_kcontrol *control,
                         struct snd_ctl_elem_value *value)
 {
        struct snd_oxfw *oxfw = control->private_data;
+       struct fw_spkr *spkr = oxfw->spec;
 
-       value->value.integer.value[0] = !oxfw->mute;
+       value->value.integer.value[0] = !spkr->mute;
 
        return 0;
 }
@@ -145,19 +153,20 @@ static int spkr_mute_put(struct snd_kcontrol *control,
                         struct snd_ctl_elem_value *value)
 {
        struct snd_oxfw *oxfw = control->private_data;
+       struct fw_spkr *spkr = oxfw->spec;
        bool mute;
        int err;
 
        mute = !value->value.integer.value[0];
 
-       if (mute == oxfw->mute)
+       if (mute == spkr->mute)
                return 0;
 
        err = avc_audio_feature_mute(oxfw->unit, oxfw->device_info->mute_fb_id,
                                     &mute, CTL_WRITE);
        if (err < 0)
                return err;
-       oxfw->mute = mute;
+       spkr->mute = mute;
 
        return 1;
 }
@@ -166,11 +175,12 @@ static int spkr_volume_info(struct snd_kcontrol *control,
                            struct snd_ctl_elem_info *info)
 {
        struct snd_oxfw *oxfw = control->private_data;
+       struct fw_spkr *spkr = oxfw->spec;
 
        info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        info->count = oxfw->device_info->mixer_channels;
-       info->value.integer.min = oxfw->volume_min;
-       info->value.integer.max = oxfw->volume_max;
+       info->value.integer.min = spkr->volume_min;
+       info->value.integer.max = spkr->volume_max;
 
        return 0;
 }
@@ -181,10 +191,11 @@ static int spkr_volume_get(struct snd_kcontrol *control,
                           struct snd_ctl_elem_value *value)
 {
        struct snd_oxfw *oxfw = control->private_data;
+       struct fw_spkr *spkr = oxfw->spec;
        unsigned int i;
 
        for (i = 0; i < oxfw->device_info->mixer_channels; ++i)
-               value->value.integer.value[channel_map[i]] = oxfw->volume[i];
+               value->value.integer.value[channel_map[i]] = spkr->volume[i];
 
        return 0;
 }
@@ -193,14 +204,15 @@ static int spkr_volume_put(struct snd_kcontrol *control,
                           struct snd_ctl_elem_value *value)
 {
        struct snd_oxfw *oxfw = control->private_data;
+       struct fw_spkr *spkr = oxfw->spec;
        unsigned int i, changed_channels;
        bool equal_values = true;
        s16 volume;
        int err;
 
        for (i = 0; i < oxfw->device_info->mixer_channels; ++i) {
-               if (value->value.integer.value[i] < oxfw->volume_min ||
-                   value->value.integer.value[i] > oxfw->volume_max)
+               if (value->value.integer.value[i] < spkr->volume_min ||
+                   value->value.integer.value[i] > spkr->volume_max)
                        return -EINVAL;
                if (value->value.integer.value[i] !=
                    value->value.integer.value[0])
@@ -210,7 +222,7 @@ static int spkr_volume_put(struct snd_kcontrol *control,
        changed_channels = 0;
        for (i = 0; i < oxfw->device_info->mixer_channels; ++i)
                if (value->value.integer.value[channel_map[i]] !=
-                                                       oxfw->volume[i])
+                                                       spkr->volume[i])
                        changed_channels |= 1 << (i + 1);
 
        if (equal_values && changed_channels != 0)
@@ -227,7 +239,7 @@ static int spkr_volume_put(struct snd_kcontrol *control,
                                return err;
                }
                if (i > 0)
-                       oxfw->volume[i - 1] = volume;
+                       spkr->volume[i - 1] = volume;
        }
 
        return changed_channels != 0;
@@ -251,22 +263,30 @@ int snd_oxfw_add_spkr(struct snd_oxfw *oxfw)
                        .put = spkr_volume_put,
                },
        };
+       struct fw_spkr *spkr;
        unsigned int i, first_ch;
        int err;
 
+       spkr = kzalloc(sizeof(struct fw_spkr), GFP_KERNEL);
+       if (spkr == NULL)
+               return -ENOMEM;
+       oxfw->spec = spkr;
+
        err = avc_audio_feature_volume(oxfw->unit,
                                       oxfw->device_info->volume_fb_id,
-                                      &oxfw->volume_min, 0, CTL_MIN, CTL_READ);
+                                      &spkr->volume_min,
+                                      0, CTL_MIN, CTL_READ);
        if (err < 0)
                return err;
        err = avc_audio_feature_volume(oxfw->unit,
                                       oxfw->device_info->volume_fb_id,
-                                      &oxfw->volume_max, 0, CTL_MAX, CTL_READ);
+                                      &spkr->volume_max,
+                                      0, CTL_MAX, CTL_READ);
        if (err < 0)
                return err;
 
        err = avc_audio_feature_mute(oxfw->unit, oxfw->device_info->mute_fb_id,
-                                    &oxfw->mute, CTL_READ);
+                                    &spkr->mute, CTL_READ);
        if (err < 0)
                return err;
 
@@ -274,7 +294,7 @@ int snd_oxfw_add_spkr(struct snd_oxfw *oxfw)
        for (i = 0; i < oxfw->device_info->mixer_channels; ++i) {
                err = avc_audio_feature_volume(oxfw->unit,
                                          oxfw->device_info->volume_fb_id,
-                                         &oxfw->volume[i],
+                                         &spkr->volume[i],
                                          first_ch + i, CTL_CURRENT, CTL_READ);
                if (err < 0)
                        return err;

diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index 9625661..046cd33 100644 (file)
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -64,11 +64,6 @@ struct snd_oxfw {
        unsigned int midi_input_ports;
        unsigned int midi_output_ports;
 
-       bool mute;
-       s16 volume[6];
-       s16 volume_min;
-       s16 volume_max;
-
        int dev_lock_count;
        bool dev_lock_changed;
        wait_queue_head_t hwdep_wait;