diff options
| author | Takashi Iwai <tiwai@suse.de> | 2017-05-12 10:47:16 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-05-17 07:13:03 +0200 |
| commit | 239480ab92a52544748749c8445f4e12495e4f69 (patch) | |
| tree | f218eef1a263ef505a7005166ab1dcd412fc230b /sound/i2c/other/ak4113.c | |
| parent | ALSA: vxpocket: Use container_of() (diff) | |
| download | linux-239480ab92a52544748749c8445f4e12495e4f69.tar.xz linux-239480ab92a52544748749c8445f4e12495e4f69.zip | |
ALSA: ak411x: Use array instead of offsetof()
The ak4113, ak4114 and ak4117 i2c drivers have some tricky codes to
access the struct fields in the callback. This can be simplified by
replacing the struct fields with the array.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/i2c/other/ak4113.c')
| -rw-r--r-- | sound/i2c/other/ak4113.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c index 2183e9ebaa6d..4099e6062d3c 100644 --- a/sound/i2c/other/ak4113.c +++ b/sound/i2c/other/ak4113.c @@ -199,12 +199,11 @@ static int snd_ak4113_in_error_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct ak4113 *chip = snd_kcontrol_chip(kcontrol); - long *ptr; spin_lock_irq(&chip->lock); - ptr = (long *)(((char *)chip) + kcontrol->private_value); - ucontrol->value.integer.value[0] = *ptr; - *ptr = 0; + ucontrol->value.integer.value[0] = + chip->errors[kcontrol->private_value]; + chip->errors[kcontrol->private_value] = 0; spin_unlock_irq(&chip->lock); return 0; } @@ -373,7 +372,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4113_in_error_info, .get = snd_ak4113_in_error_get, - .private_value = offsetof(struct ak4113, parity_errors), + .private_value = AK4113_PARITY_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -382,7 +381,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4113_in_error_info, .get = snd_ak4113_in_error_get, - .private_value = offsetof(struct ak4113, v_bit_errors), + .private_value = AK4113_V_BIT_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -391,7 +390,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4113_in_error_info, .get = snd_ak4113_in_error_get, - .private_value = offsetof(struct ak4113, ccrc_errors), + .private_value = AK4113_CCRC_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -400,7 +399,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4113_in_error_info, .get = snd_ak4113_in_error_get, - .private_value = offsetof(struct ak4113, qcrc_errors), + .private_value = AK4113_QCRC_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -551,13 +550,13 @@ int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags) rcs2 = reg_read(ak4113, AK4113_REG_RCS2); spin_lock_irqsave(&ak4113->lock, _flags); if (rcs0 & AK4113_PAR) - ak4113->parity_errors++; + ak4113->errors[AK4113_PARITY_ERRORS]++; if (rcs0 & AK4113_V) - ak4113->v_bit_errors++; + ak4113->errors[AK4113_V_BIT_ERRORS]++; if (rcs2 & AK4113_CCRC) - ak4113->ccrc_errors++; + ak4113->errors[AK4113_CCRC_ERRORS]++; if (rcs2 & AK4113_QCRC) - ak4113->qcrc_errors++; + ak4113->errors[AK4113_QCRC_ERRORS]++; c0 = (ak4113->rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)) ^ (rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | |