mirror of https://github.com/torvalds/linux.git
ALSA: cs423x: Use guard() for spin locks
Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250829145300.5460-5-tiwai@suse.de
This commit is contained in:
Takashi Iwai
parent
14ba220697
commit
6f5d556a80
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@ -169,10 +169,9 @@ static void snd_cs4236_playback_format(struct snd_wss *chip,
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struct snd_pcm_hw_params *params,
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unsigned char pdfr)
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{
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unsigned long flags;
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unsigned char rate = divisor_to_rate_register(params->rate_den);
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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/* set fast playback format change and clean playback FIFO */
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snd_wss_out(chip, CS4231_ALT_FEATURE_1,
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chip->image[CS4231_ALT_FEATURE_1] | 0x10);
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@ -180,17 +179,15 @@ static void snd_cs4236_playback_format(struct snd_wss *chip,
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snd_wss_out(chip, CS4231_ALT_FEATURE_1,
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chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
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snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static void snd_cs4236_capture_format(struct snd_wss *chip,
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struct snd_pcm_hw_params *params,
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unsigned char cdfr)
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{
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unsigned long flags;
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unsigned char rate = divisor_to_rate_register(params->rate_den);
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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/* set fast capture format change and clean capture FIFO */
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snd_wss_out(chip, CS4231_ALT_FEATURE_1,
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chip->image[CS4231_ALT_FEATURE_1] | 0x20);
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@ -198,7 +195,6 @@ static void snd_cs4236_capture_format(struct snd_wss *chip,
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snd_wss_out(chip, CS4231_ALT_FEATURE_1,
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chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
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snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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#ifdef CONFIG_PM
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@ -206,48 +202,45 @@ static void snd_cs4236_capture_format(struct snd_wss *chip,
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static void snd_cs4236_suspend(struct snd_wss *chip)
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{
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int reg;
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unsigned long flags;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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for (reg = 0; reg < 32; reg++)
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chip->image[reg] = snd_wss_in(chip, reg);
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for (reg = 0; reg < 18; reg++)
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chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
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for (reg = 2; reg < 9; reg++)
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chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static void snd_cs4236_resume(struct snd_wss *chip)
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{
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int reg;
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unsigned long flags;
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snd_wss_mce_up(chip);
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spin_lock_irqsave(&chip->reg_lock, flags);
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for (reg = 0; reg < 32; reg++) {
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switch (reg) {
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case CS4236_EXT_REG:
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case CS4231_VERSION:
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case 27: /* why? CS4235 - master left */
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case 29: /* why? CS4235 - master right */
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break;
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default:
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snd_wss_out(chip, reg, chip->image[reg]);
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break;
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scoped_guard(spinlock_irqsave, &chip->reg_lock) {
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for (reg = 0; reg < 32; reg++) {
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switch (reg) {
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case CS4236_EXT_REG:
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case CS4231_VERSION:
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case 27: /* why? CS4235 - master left */
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case 29: /* why? CS4235 - master right */
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break;
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default:
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snd_wss_out(chip, reg, chip->image[reg]);
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break;
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}
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}
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for (reg = 0; reg < 18; reg++)
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snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
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for (reg = 2; reg < 9; reg++) {
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switch (reg) {
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case 7:
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break;
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default:
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snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
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}
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}
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}
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for (reg = 0; reg < 18; reg++)
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snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
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for (reg = 2; reg < 9; reg++) {
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switch (reg) {
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case 7:
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break;
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default:
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snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
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}
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}
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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snd_wss_mce_down(chip);
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}
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@ -403,15 +396,13 @@ static int snd_cs4236_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_
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static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int reg = kcontrol->private_value & 0xff;
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int shift = (kcontrol->private_value >> 8) & 0xff;
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int mask = (kcontrol->private_value >> 16) & 0xff;
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int invert = (kcontrol->private_value >> 24) & 0xff;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (invert)
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ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
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return 0;
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@ -420,7 +411,6 @@ static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int reg = kcontrol->private_value & 0xff;
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int shift = (kcontrol->private_value >> 8) & 0xff;
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int mask = (kcontrol->private_value >> 16) & 0xff;
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@ -432,11 +422,10 @@ static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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if (invert)
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val = mask - val;
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val <<= shift;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
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change = val != chip->eimage[CS4236_REG(reg)];
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snd_cs4236_ext_out(chip, reg, val);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return change;
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}
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@ -449,15 +438,13 @@ static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int reg = kcontrol->private_value & 0xff;
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int shift = (kcontrol->private_value >> 8) & 0xff;
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int mask = (kcontrol->private_value >> 16) & 0xff;
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int invert = (kcontrol->private_value >> 24) & 0xff;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (invert)
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ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
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return 0;
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@ -466,7 +453,6 @@ static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_
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static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int reg = kcontrol->private_value & 0xff;
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int shift = (kcontrol->private_value >> 8) & 0xff;
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int mask = (kcontrol->private_value >> 16) & 0xff;
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@ -478,11 +464,10 @@ static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_
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if (invert)
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val = mask - val;
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val <<= shift;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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val = (chip->cimage[reg] & ~(mask << shift)) | val;
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change = val != chip->cimage[reg];
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snd_cs4236_ctrl_out(chip, reg, val);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return change;
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}
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@ -516,7 +501,6 @@ static int snd_cs4236_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
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static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int left_reg = kcontrol->private_value & 0xff;
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int right_reg = (kcontrol->private_value >> 8) & 0xff;
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int shift_left = (kcontrol->private_value >> 16) & 0x07;
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@ -524,10 +508,9 @@ static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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int mask = (kcontrol->private_value >> 24) & 0xff;
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int invert = (kcontrol->private_value >> 22) & 1;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
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ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (invert) {
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ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
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ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
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@ -538,7 +521,6 @@ static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int left_reg = kcontrol->private_value & 0xff;
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int right_reg = (kcontrol->private_value >> 8) & 0xff;
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int shift_left = (kcontrol->private_value >> 16) & 0x07;
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@ -556,7 +538,7 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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}
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val1 <<= shift_left;
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val2 <<= shift_right;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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if (left_reg != right_reg) {
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val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
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val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
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@ -568,7 +550,6 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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change = val1 != chip->eimage[CS4236_REG(left_reg)];
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snd_cs4236_ext_out(chip, left_reg, val1);
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}
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return change;
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}
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@ -592,7 +573,6 @@ static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e
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static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int left_reg = kcontrol->private_value & 0xff;
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int right_reg = (kcontrol->private_value >> 8) & 0xff;
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int shift_left = (kcontrol->private_value >> 16) & 0x07;
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@ -600,10 +580,9 @@ static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
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int mask = (kcontrol->private_value >> 24) & 0xff;
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int invert = (kcontrol->private_value >> 22) & 1;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
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ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (invert) {
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ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
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ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
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@ -614,7 +593,6 @@ static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
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static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int left_reg = kcontrol->private_value & 0xff;
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int right_reg = (kcontrol->private_value >> 8) & 0xff;
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int shift_left = (kcontrol->private_value >> 16) & 0x07;
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@ -632,13 +610,12 @@ static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_
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}
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val1 <<= shift_left;
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val2 <<= shift_right;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
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val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
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change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
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snd_wss_out(chip, left_reg, val1);
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snd_cs4236_ext_out(chip, right_reg, val2);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return change;
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}
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@ -658,31 +635,27 @@ static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
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static int snd_cs4236_get_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
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ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return 0;
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}
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static int snd_cs4236_put_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int change;
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unsigned short val1, val2;
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val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
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val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
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val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
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change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
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snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
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snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val2);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return change;
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}
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@ -719,31 +692,27 @@ static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
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static int snd_cs4235_get_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
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ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return 0;
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}
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static int snd_cs4235_put_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
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unsigned long flags;
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int change;
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unsigned short val1, val2;
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val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
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val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
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spin_lock_irqsave(&chip->reg_lock, flags);
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guard(spinlock_irqsave)(&chip->reg_lock);
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val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
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val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
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change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
|
||||
snd_wss_out(chip, CS4235_LEFT_MASTER, val1);
|
||||
snd_wss_out(chip, CS4235_RIGHT_MASTER, val2);
|
||||
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
||||
return change;
|
||||
}
|
||||
|
||||
|
|
@ -929,9 +898,8 @@ WSS_DOUBLE("Analog Loopback Switch", 0,
|
|||
static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&chip->reg_lock, flags);
|
||||
guard(spinlock_irqsave)(&chip->reg_lock);
|
||||
ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
|
||||
#if 0
|
||||
dev_dbg(chip->card->dev,
|
||||
|
|
@ -943,14 +911,12 @@ static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
|
|||
snd_cs4236_ctrl_in(chip, 6),
|
||||
snd_cs4236_ctrl_in(chip, 8));
|
||||
#endif
|
||||
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
|
||||
unsigned long flags;
|
||||
int change;
|
||||
unsigned short enable, val;
|
||||
|
||||
|
|
@ -958,16 +924,16 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn
|
|||
|
||||
guard(mutex)(&chip->mce_mutex);
|
||||
snd_wss_mce_up(chip);
|
||||
spin_lock_irqsave(&chip->reg_lock, flags);
|
||||
val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
|
||||
change = val != chip->image[CS4231_ALT_FEATURE_1];
|
||||
snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
|
||||
val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
|
||||
snd_cs4236_ctrl_out(chip, 4, val);
|
||||
udelay(100);
|
||||
val &= ~0x40;
|
||||
snd_cs4236_ctrl_out(chip, 4, val);
|
||||
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
||||
scoped_guard(spinlock_irqsave, &chip->reg_lock) {
|
||||
val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
|
||||
change = val != chip->image[CS4231_ALT_FEATURE_1];
|
||||
snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
|
||||
val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
|
||||
snd_cs4236_ctrl_out(chip, 4, val);
|
||||
udelay(100);
|
||||
val &= ~0x40;
|
||||
snd_cs4236_ctrl_out(chip, 4, val);
|
||||
}
|
||||
snd_wss_mce_down(chip);
|
||||
|
||||
#if 0
|
||||
|
|
|
|||
Loading…
Reference in New Issue