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raspberrypi-kernel
提交 74415a36 编写于 作者: J James Courtier-Dutton 提交者： Mercurial server
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[ALSA] emu10k1: Add mixer controls parameter checking. 

Signed-off-by: NJames Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
上级 4df20535
隐藏空白更改
内联 并排
Showing with 51 addition and 9 deletion
sound/pci/emu10k1/emumixer.c
浏览文件 @ 74415a36
......@@ -58,6 +58,9 @@ static int snd_emu10k1_spdif_get(struct snd_kcontrol *kcontrol,
unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
unsigned long flags;
/* Limit: emu->spdif_bits */
if (idx >= 3)
return -EINVAL;
spin_lock_irqsave(&emu->reg_lock, flags);
ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
......@@ -272,9 +275,12 @@ static int snd_emu1010_output_source_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int channel;
unsigned int channel;
channel = (kcontrol->private_value) & 0xff;
/* Limit: emu1010_output_dst, emu->emu1010.output_source */
if (channel >= 24)
return -EINVAL;
ucontrol->value.enumerated.item[0] = emu->emu1010.output_source[channel];
return 0;
}
......@@ -285,9 +291,12 @@ static int snd_emu1010_output_source_put(struct snd_kcontrol *kcontrol,
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int change = 0;
unsigned int val;
int channel;
unsigned int channel;
channel = (kcontrol->private_value) & 0xff;
/* Limit: emu1010_output_dst, emu->emu1010.output_source */
if (channel >= 24)
return -EINVAL;
if (emu->emu1010.output_source[channel] != ucontrol->value.enumerated.item[0]) {
val = emu->emu1010.output_source[channel] = ucontrol->value.enumerated.item[0];
change = 1;
......@@ -301,9 +310,12 @@ static int snd_emu1010_input_source_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int channel;
unsigned int channel;
channel = (kcontrol->private_value) & 0xff;
/* Limit: emu1010_input_dst, emu->emu1010.input_source */
if (channel >= 22)
return -EINVAL;
ucontrol->value.enumerated.item[0] = emu->emu1010.input_source[channel];
return 0;
}
......@@ -314,9 +326,12 @@ static int snd_emu1010_input_source_put(struct snd_kcontrol *kcontrol,
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int change = 0;
unsigned int val;
int channel;
unsigned int channel;
channel = (kcontrol->private_value) & 0xff;
/* Limit: emu1010_input_dst, emu->emu1010.input_source */
if (channel >= 22)
return -EINVAL;
if (emu->emu1010.input_source[channel] != ucontrol->value.enumerated.item[0]) {
val = emu->emu1010.input_source[channel] = ucontrol->value.enumerated.item[0];
change = 1;
......@@ -533,6 +548,9 @@ static int snd_emu1010_internal_clock_put(struct snd_kcontrol *kcontrol,
int change = 0;
val = ucontrol->value.enumerated.item[0] ;
/* Limit: uinfo->value.enumerated.items = 4; */
if (val >= 4)
return -EINVAL;
change = (emu->emu1010.internal_clock != val);
if (change) {
emu->emu1010.internal_clock = val;
......@@ -669,7 +687,11 @@ static int snd_audigy_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
* update the capture volume from the cached value
* for the particular source.
*/
source_id = ucontrol->value.enumerated.item[0]; /* Use 2 and 3 */
source_id = ucontrol->value.enumerated.item[0];
/* Limit: uinfo->value.enumerated.items = 2; */
/* emu->i2c_capture_volume */
if (source_id >= 2)
return -EINVAL;
change = (emu->i2c_capture_source != source_id);
if (change) {
snd_emu10k1_i2c_write(emu, ADC_MUX, 0); /* Mute input */
......@@ -720,9 +742,13 @@ static int snd_audigy_i2c_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
int source_id;
unsigned int source_id;
source_id = kcontrol->private_value;
/* Limit: emu->i2c_capture_volume */
/* capture_source: uinfo->value.enumerated.items = 2 */
if (source_id >= 2)
return -EINVAL;
ucontrol->value.integer.value[0] = emu->i2c_capture_volume[source_id][0];
ucontrol->value.integer.value[1] = emu->i2c_capture_volume[source_id][1];
......@@ -735,10 +761,14 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
unsigned int ogain;
unsigned int ngain;
int source_id;
unsigned int source_id;
int change = 0;
source_id = kcontrol->private_value;
/* Limit: emu->i2c_capture_volume */
/* capture_source: uinfo->value.enumerated.items = 2 */
if (source_id >= 2)
return -EINVAL;
ogain = emu->i2c_capture_volume[source_id][0]; /* Left */
ngain = ucontrol->value.integer.value[0];
if (ngain > 0xff)
......@@ -746,7 +776,7 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
if (ogain != ngain) {
if (emu->i2c_capture_source == source_id)
snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff) );
emu->i2c_capture_volume[source_id][0] = ucontrol->value.integer.value[0];
emu->i2c_capture_volume[source_id][0] = ngain;
change = 1;
}
ogain = emu->i2c_capture_volume[source_id][1]; /* Right */
......@@ -756,7 +786,7 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
if (ogain != ngain) {
if (emu->i2c_capture_source == source_id)
snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
emu->i2c_capture_volume[source_id][1] = ucontrol->value.integer.value[1];
emu->i2c_capture_volume[source_id][1] = ngain;
change = 1;
}
......@@ -877,6 +907,9 @@ static int snd_emu10k1_spdif_put(struct snd_kcontrol *kcontrol,
unsigned int val;
unsigned long flags;
/* Limit: emu->spdif_bits */
if (idx >= 3)
return -EINVAL;
val = (ucontrol->value.iec958.status[0] << 0) |
(ucontrol->value.iec958.status[1] << 8) |
(ucontrol->value.iec958.status[2] << 16) |
......@@ -1050,6 +1083,7 @@ static int snd_emu10k1_send_volume_put(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
int change = 0, idx, val;
......@@ -1102,6 +1136,7 @@ static int snd_emu10k1_attn_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
unsigned long flags;
......@@ -1119,6 +1154,7 @@ static int snd_emu10k1_attn_put(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
int change = 0, idx, val;
......@@ -1171,6 +1207,7 @@ static int snd_emu10k1_efx_send_routing_get(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->efx_pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
int idx;
......@@ -1190,6 +1227,7 @@ static int snd_emu10k1_efx_send_routing_put(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
int ch = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
struct snd_emu10k1_pcm_mixer *mix = &emu->efx_pcm_mixer[ch];
int change = 0, idx, val;
......@@ -1241,6 +1279,7 @@ static int snd_emu10k1_efx_send_volume_get(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->efx_pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
int idx;
......@@ -1258,6 +1297,7 @@ static int snd_emu10k1_efx_send_volume_put(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
int ch = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
struct snd_emu10k1_pcm_mixer *mix = &emu->efx_pcm_mixer[ch];
int change = 0, idx, val;
......@@ -1306,6 +1346,7 @@ static int snd_emu10k1_efx_attn_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
struct snd_emu10k1_pcm_mixer *mix =
&emu->efx_pcm_mixer[snd_ctl_get_ioffidx(kcontrol, &ucontrol->id)];
unsigned long flags;
......@@ -1321,6 +1362,7 @@ static int snd_emu10k1_efx_attn_put(struct snd_kcontrol *kcontrol,
{
unsigned long flags;
struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
/* FIXME: Check limits */
int ch = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
struct snd_emu10k1_pcm_mixer *mix = &emu->efx_pcm_mixer[ch];
int change = 0, val;
......
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