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/ak4117.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/ak4117.c')
| -rw-r--r-- | sound/i2c/other/ak4117.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/sound/i2c/other/ak4117.c b/sound/i2c/other/ak4117.c index 0702f0552d19..3ab099fb8c15 100644 --- a/sound/i2c/other/ak4117.c +++ b/sound/i2c/other/ak4117.c @@ -168,12 +168,11 @@ static int snd_ak4117_in_error_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct ak4117 *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; } @@ -328,7 +327,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4117_in_error_info, .get = snd_ak4117_in_error_get, - .private_value = offsetof(struct ak4117, parity_errors), + .private_value = AK4117_PARITY_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -336,7 +335,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4117_in_error_info, .get = snd_ak4117_in_error_get, - .private_value = offsetof(struct ak4117, v_bit_errors), + .private_value = AK4117_V_BIT_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -344,7 +343,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4117_in_error_info, .get = snd_ak4117_in_error_get, - .private_value = offsetof(struct ak4117, ccrc_errors), + .private_value = AK4117_CCRC_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -352,7 +351,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4117_in_error_info, .get = snd_ak4117_in_error_get, - .private_value = offsetof(struct ak4117, qcrc_errors), + .private_value = AK4117_QCRC_ERRORS, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, @@ -470,13 +469,13 @@ int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags) // printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2); spin_lock_irqsave(&ak4117->lock, _flags); if (rcs0 & AK4117_PAR) - ak4117->parity_errors++; + ak4117->errors[AK4117_PARITY_ERRORS]++; if (rcs0 & AK4117_V) - ak4117->v_bit_errors++; + ak4117->errors[AK4117_V_BIT_ERRORS]++; if (rcs2 & AK4117_CCRC) - ak4117->ccrc_errors++; + ak4117->errors[AK4117_CCRC_ERRORS]++; if (rcs2 & AK4117_QCRC) - ak4117->qcrc_errors++; + ak4117->errors[AK4117_QCRC_ERRORS]++; c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^ (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)); c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^ |