From ab2dac2bdcf562dd616bd1fadddf5078ae7c3d83 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 15 Nov 2007 15:56:47 +0100 Subject: [PATCH] [ALSA] mixart - Check value range in ctl callbacks Check the value ranges in ctl put callbacks properly. Also fixed some coding style issues around that. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/mixart/mixart_mixer.c | 124 +++++++++++++++++++++++++++------------- 1 file changed, 83 insertions(+), 41 deletions(-) diff --git a/sound/pci/mixart/mixart_mixer.c b/sound/pci/mixart/mixart_mixer.c index 0e16512d25f7..5b3c224732af 100644 --- a/sound/pci/mixart/mixart_mixer.c +++ b/sound/pci/mixart/mixart_mixer.c @@ -376,15 +376,27 @@ static int mixart_analog_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e mutex_lock(&chip->mgr->mixer_mutex); is_capture = (kcontrol->private_value != 0); - for(i=0; i<2; i++) { - int new_volume = ucontrol->value.integer.value[i]; - int* stored_volume = is_capture ? &chip->analog_capture_volume[i] : &chip->analog_playback_volume[i]; - if(*stored_volume != new_volume) { + for (i = 0; i < 2; i++) { + int new_volume = ucontrol->value.integer.value[i]; + int *stored_volume = is_capture ? + &chip->analog_capture_volume[i] : + &chip->analog_playback_volume[i]; + if (is_capture) { + if (new_volume < MIXART_ANALOG_CAPTURE_LEVEL_MIN || + new_volume > MIXART_ANALOG_CAPTURE_LEVEL_MAX) + continue; + } else { + if (new_volume < MIXART_ANALOG_PLAYBACK_LEVEL_MIN || + new_volume > MIXART_ANALOG_PLAYBACK_LEVEL_MAX) + continue; + } + if (*stored_volume != new_volume) { *stored_volume = new_volume; changed = 1; } } - if(changed) mixart_update_analog_audio_level(chip, is_capture); + if (changed) + mixart_update_analog_audio_level(chip, is_capture); mutex_unlock(&chip->mgr->mixer_mutex); return changed; } @@ -421,13 +433,16 @@ static int mixart_audio_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_ele struct snd_mixart *chip = snd_kcontrol_chip(kcontrol); int i, changed = 0; mutex_lock(&chip->mgr->mixer_mutex); - for(i=0; i<2; i++) { - if(chip->analog_playback_active[i] != ucontrol->value.integer.value[i]) { - chip->analog_playback_active[i] = ucontrol->value.integer.value[i]; + for (i = 0; i < 2; i++) { + if (chip->analog_playback_active[i] != + ucontrol->value.integer.value[i]) { + chip->analog_playback_active[i] = + !!ucontrol->value.integer.value[i]; changed = 1; } } - if(changed) mixart_update_analog_audio_level(chip, 0); /* update playback levels */ + if (changed) /* update playback levels */ + mixart_update_analog_audio_level(chip, 0); mutex_unlock(&chip->mgr->mixer_mutex); return changed; } @@ -843,23 +858,33 @@ static int mixart_pcm_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem int* stored_volume; int i; mutex_lock(&chip->mgr->mixer_mutex); - if(is_capture) { - if(is_aes) stored_volume = chip->digital_capture_volume[1]; /* AES capture */ - else stored_volume = chip->digital_capture_volume[0]; /* analog capture */ + if (is_capture) { + if (is_aes) /* AES capture */ + stored_volume = chip->digital_capture_volume[1]; + else /* analog capture */ + stored_volume = chip->digital_capture_volume[0]; } else { snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); - if(is_aes) stored_volume = chip->digital_playback_volume[MIXART_PLAYBACK_STREAMS + idx]; /* AES playback */ - else stored_volume = chip->digital_playback_volume[idx]; /* analog playback */ + if (is_aes) /* AES playback */ + stored_volume = chip->digital_playback_volume[MIXART_PLAYBACK_STREAMS + idx]; + else /* analog playback */ + stored_volume = chip->digital_playback_volume[idx]; } - for(i=0; i<2; i++) { - if(stored_volume[i] != ucontrol->value.integer.value[i]) { - stored_volume[i] = ucontrol->value.integer.value[i]; + for (i = 0; i < 2; i++) { + int vol = ucontrol->value.integer.value[i]; + if (vol < MIXART_DIGITAL_LEVEL_MIN || + vol > MIXART_DIGITAL_LEVEL_MAX) + continue; + if (stored_volume[i] != vol) { + stored_volume[i] = vol; changed = 1; } } - if(changed) { - if(is_capture) mixart_update_capture_stream_level(chip, is_aes); - else mixart_update_playback_stream_level(chip, is_aes, idx); + if (changed) { + if (is_capture) + mixart_update_capture_stream_level(chip, is_aes); + else + mixart_update_playback_stream_level(chip, is_aes, idx); } mutex_unlock(&chip->mgr->mixer_mutex); return changed; @@ -905,14 +930,18 @@ static int mixart_pcm_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_ snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); mutex_lock(&chip->mgr->mixer_mutex); j = idx; - if(is_aes) j += MIXART_PLAYBACK_STREAMS; - for(i=0; i<2; i++) { - if(chip->digital_playback_active[j][i] != ucontrol->value.integer.value[i]) { - chip->digital_playback_active[j][i] = ucontrol->value.integer.value[i]; + if (is_aes) + j += MIXART_PLAYBACK_STREAMS; + for (i = 0; i < 2; i++) { + if (chip->digital_playback_active[j][i] != + ucontrol->value.integer.value[i]) { + chip->digital_playback_active[j][i] = + !!ucontrol->value.integer.value[i]; changed = 1; } } - if(changed) mixart_update_playback_stream_level(chip, is_aes, idx); + if (changed) + mixart_update_playback_stream_level(chip, is_aes, idx); mutex_unlock(&chip->mgr->mixer_mutex); return changed; } @@ -975,9 +1004,11 @@ static int mixart_monitor_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_ int changed = 0; int i; mutex_lock(&chip->mgr->mixer_mutex); - for(i=0; i<2; i++) { - if(chip->monitoring_volume[i] != ucontrol->value.integer.value[i]) { - chip->monitoring_volume[i] = ucontrol->value.integer.value[i]; + for (i = 0; i < 2; i++) { + if (chip->monitoring_volume[i] != + ucontrol->value.integer.value[i]) { + chip->monitoring_volume[i] = + !!ucontrol->value.integer.value[i]; mixart_update_monitoring(chip, i); changed = 1; } @@ -1017,24 +1048,35 @@ static int mixart_monitor_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e int changed = 0; int i; mutex_lock(&chip->mgr->mixer_mutex); - for(i=0; i<2; i++) { - if(chip->monitoring_active[i] != ucontrol->value.integer.value[i]) { - chip->monitoring_active[i] = ucontrol->value.integer.value[i]; + for (i = 0; i < 2; i++) { + if (chip->monitoring_active[i] != + ucontrol->value.integer.value[i]) { + chip->monitoring_active[i] = + !!ucontrol->value.integer.value[i]; changed |= (1<monitoring_active[0] || chip->monitoring_active[1]; - if(allocate) { - snd_mixart_add_ref_pipe( chip, MIXART_PCM_ANALOG, 0, 1); /* allocate the playback pipe for monitoring */ - snd_mixart_add_ref_pipe( chip, MIXART_PCM_ANALOG, 1, 1); /* allocate the capture pipe for monitoring */ + int allocate = chip->monitoring_active[0] || + chip->monitoring_active[1]; + if (allocate) { + /* allocate the playback pipe for monitoring */ + snd_mixart_add_ref_pipe(chip, MIXART_PCM_ANALOG, 0, 1); + /* allocate the capture pipe for monitoring */ + snd_mixart_add_ref_pipe(chip, MIXART_PCM_ANALOG, 1, 1); } - if(changed & 0x01) mixart_update_monitoring(chip, 0); - if(changed & 0x02) mixart_update_monitoring(chip, 1); - if(!allocate) { - snd_mixart_kill_ref_pipe( chip->mgr, &chip->pipe_in_ana, 1); /* release the capture pipe for monitoring */ - snd_mixart_kill_ref_pipe( chip->mgr, &chip->pipe_out_ana, 1); /* release the playback pipe for monitoring */ + if (changed & 0x01) + mixart_update_monitoring(chip, 0); + if (changed & 0x02) + mixart_update_monitoring(chip, 1); + if (!allocate) { + /* release the capture pipe for monitoring */ + snd_mixart_kill_ref_pipe(chip->mgr, + &chip->pipe_in_ana, 1); + /* release the playback pipe for monitoring */ + snd_mixart_kill_ref_pipe(chip->mgr, + &chip->pipe_out_ana, 1); } } -- 2.11.0