mirror of https://github.com/torvalds/linux.git
ALSA: es1968: 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/20250829144342.4290-33-tiwai@suse.de
This commit is contained in:
Takashi Iwai
parent
819107cdeb
commit
3ea4db1f20
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@ -574,10 +574,8 @@ static void __maestro_write(struct es1968 *chip, u16 reg, u16 data)
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static inline void maestro_write(struct es1968 *chip, u16 reg, u16 data)
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{
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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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__maestro_write(chip, reg, data);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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/* no spinlock */
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@ -592,12 +590,8 @@ static u16 __maestro_read(struct es1968 *chip, u16 reg)
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static inline u16 maestro_read(struct es1968 *chip, u16 reg)
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{
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unsigned long flags;
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u16 result;
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spin_lock_irqsave(&chip->reg_lock, flags);
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result = __maestro_read(chip, reg);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return result;
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guard(spinlock_irqsave)(&chip->reg_lock);
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return __maestro_read(chip, reg);
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}
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/* Wait for the codec bus to be free */
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@ -693,10 +687,8 @@ static void __apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 dat
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static void apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data)
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{
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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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__apu_set_register(chip, channel, reg, data);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static u16 __apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
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@ -710,62 +702,40 @@ static u16 __apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
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static u16 apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
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{
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unsigned long flags;
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u16 v;
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spin_lock_irqsave(&chip->reg_lock, flags);
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v = __apu_get_register(chip, channel, reg);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return v;
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guard(spinlock_irqsave)(&chip->reg_lock);
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return __apu_get_register(chip, channel, reg);
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}
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#if 0 /* ASSP is not supported */
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static void assp_set_register(struct es1968 *chip, u32 reg, u32 value)
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{
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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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outl(reg, chip->io_port + ASSP_INDEX);
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outl(value, chip->io_port + ASSP_DATA);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static u32 assp_get_register(struct es1968 *chip, u32 reg)
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{
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unsigned long flags;
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u32 value;
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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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outl(reg, chip->io_port + ASSP_INDEX);
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value = inl(chip->io_port + ASSP_DATA);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return value;
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return inl(chip->io_port + ASSP_DATA);
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}
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#endif
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static void wave_set_register(struct es1968 *chip, u16 reg, u16 value)
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{
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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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outw(reg, chip->io_port + WC_INDEX);
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outw(value, chip->io_port + WC_DATA);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static u16 wave_get_register(struct es1968 *chip, u16 reg)
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{
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unsigned long flags;
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u16 value;
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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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outw(reg, chip->io_port + WC_INDEX);
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value = inw(chip->io_port + WC_DATA);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return value;
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return inw(chip->io_port + WC_DATA);
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}
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/* *******************
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@ -924,7 +894,7 @@ static inline void snd_es1968_trigger_apu(struct es1968 *esm, int apu, int mode)
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static void snd_es1968_pcm_start(struct es1968 *chip, struct esschan *es)
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{
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spin_lock(&chip->reg_lock);
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guard(spinlock)(&chip->reg_lock);
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__apu_set_register(chip, es->apu[0], 5, es->base[0]);
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snd_es1968_trigger_apu(chip, es->apu[0], es->apu_mode[0]);
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if (es->mode == ESM_MODE_CAPTURE) {
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@ -939,19 +909,17 @@ static void snd_es1968_pcm_start(struct es1968 *chip, struct esschan *es)
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snd_es1968_trigger_apu(chip, es->apu[3], es->apu_mode[3]);
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}
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}
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spin_unlock(&chip->reg_lock);
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}
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static void snd_es1968_pcm_stop(struct es1968 *chip, struct esschan *es)
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{
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spin_lock(&chip->reg_lock);
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guard(spinlock)(&chip->reg_lock);
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snd_es1968_trigger_apu(chip, es->apu[0], 0);
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snd_es1968_trigger_apu(chip, es->apu[1], 0);
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if (es->mode == ESM_MODE_CAPTURE) {
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snd_es1968_trigger_apu(chip, es->apu[2], 0);
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snd_es1968_trigger_apu(chip, es->apu[3], 0);
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}
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spin_unlock(&chip->reg_lock);
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}
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/* set the wavecache control reg */
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@ -981,7 +949,6 @@ static void snd_es1968_playback_setup(struct es1968 *chip, struct esschan *es,
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int high_apu = 0;
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int channel, apu;
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int i, size;
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unsigned long flags;
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u32 freq;
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size = es->dma_size >> es->wav_shift;
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@ -1051,12 +1018,12 @@ static void snd_es1968_playback_setup(struct es1968 *chip, struct esschan *es,
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apu_set_register(chip, apu, 10, 0x8F08);
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}
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spin_lock_irqsave(&chip->reg_lock, flags);
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scoped_guard(spinlock_irqsave, &chip->reg_lock) {
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/* clear WP interrupts */
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outw(1, chip->io_port + 0x04);
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/* enable WP ints */
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outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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freq = runtime->rate;
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/* set frequency */
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@ -1127,7 +1094,6 @@ static void snd_es1968_capture_setup(struct es1968 *chip, struct esschan *es,
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{
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int size;
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u32 freq;
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unsigned long flags;
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size = es->dma_size >> es->wav_shift;
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@ -1179,12 +1145,11 @@ static void snd_es1968_capture_setup(struct es1968 *chip, struct esschan *es,
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snd_es1968_apu_set_freq(chip, es->apu[2], freq);
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snd_es1968_apu_set_freq(chip, es->apu[3], freq);
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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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/* clear WP interrupts */
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outw(1, chip->io_port + 0x04);
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/* enable WP ints */
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outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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/*******************
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@ -1228,7 +1193,7 @@ static int snd_es1968_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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struct es1968 *chip = snd_pcm_substream_chip(substream);
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struct esschan *es = substream->runtime->private_data;
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spin_lock(&chip->substream_lock);
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guard(spinlock)(&chip->substream_lock);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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@ -1249,7 +1214,6 @@ static int snd_es1968_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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snd_es1968_bob_dec(chip);
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break;
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}
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spin_unlock(&chip->substream_lock);
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return 0;
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}
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@ -1543,9 +1507,8 @@ static int snd_es1968_playback_open(struct snd_pcm_substream *substream)
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runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
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calc_available_memory_size(chip);
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spin_lock_irq(&chip->substream_lock);
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guard(spinlock_irq)(&chip->substream_lock);
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list_add(&es->list, &chip->substream_list);
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spin_unlock_irq(&chip->substream_lock);
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return 0;
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}
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@ -1603,9 +1566,8 @@ static int snd_es1968_capture_open(struct snd_pcm_substream *substream)
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if (err < 0)
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return err;
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spin_lock_irq(&chip->substream_lock);
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guard(spinlock_irq)(&chip->substream_lock);
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list_add(&es->list, &chip->substream_list);
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spin_unlock_irq(&chip->substream_lock);
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return 0;
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}
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@ -1618,9 +1580,9 @@ static int snd_es1968_playback_close(struct snd_pcm_substream *substream)
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if (substream->runtime->private_data == NULL)
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return 0;
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es = substream->runtime->private_data;
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spin_lock_irq(&chip->substream_lock);
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scoped_guard(spinlock_irq, &chip->substream_lock) {
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list_del(&es->list);
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spin_unlock_irq(&chip->substream_lock);
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}
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snd_es1968_free_apu_pair(chip, es->apu[0]);
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kfree(es);
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@ -1635,9 +1597,9 @@ static int snd_es1968_capture_close(struct snd_pcm_substream *substream)
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if (substream->runtime->private_data == NULL)
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return 0;
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es = substream->runtime->private_data;
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spin_lock_irq(&chip->substream_lock);
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scoped_guard(spinlock_irq, &chip->substream_lock) {
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list_del(&es->list);
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spin_unlock_irq(&chip->substream_lock);
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}
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snd_es1968_free_memory(chip, es->mixbuf);
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snd_es1968_free_apu_pair(chip, es->apu[0]);
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snd_es1968_free_apu_pair(chip, es->apu[2]);
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@ -1718,29 +1680,29 @@ static void es1968_measure_clock(struct es1968 *chip)
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apu_set_register(chip, apu, 9, 0xD000);
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apu_set_register(chip, apu, 10, 0x8F08);
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apu_set_register(chip, apu, 11, 0x0000);
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spin_lock_irq(&chip->reg_lock);
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scoped_guard(spinlock_irq, &chip->reg_lock) {
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outw(1, chip->io_port + 0x04); /* clear WP interrupts */
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outw(inw(chip->io_port + ESM_PORT_HOST_IRQ) | ESM_HIRQ_DSIE, chip->io_port + ESM_PORT_HOST_IRQ); /* enable WP ints */
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spin_unlock_irq(&chip->reg_lock);
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}
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snd_es1968_apu_set_freq(chip, apu, ((unsigned int)48000 << 16) / chip->clock); /* 48000 Hz */
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chip->in_measurement = 1;
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chip->measure_apu = apu;
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spin_lock_irq(&chip->reg_lock);
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scoped_guard(spinlock_irq, &chip->reg_lock) {
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snd_es1968_bob_inc(chip, ESM_BOB_FREQ);
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__apu_set_register(chip, apu, 5, pa & 0xffff);
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snd_es1968_trigger_apu(chip, apu, ESM_APU_16BITLINEAR);
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start_time = ktime_get();
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spin_unlock_irq(&chip->reg_lock);
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}
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msleep(50);
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spin_lock_irq(&chip->reg_lock);
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scoped_guard(spinlock_irq, &chip->reg_lock) {
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offset = __apu_get_register(chip, apu, 5);
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stop_time = ktime_get();
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snd_es1968_trigger_apu(chip, apu, 0); /* stop */
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snd_es1968_bob_dec(chip);
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chip->in_measurement = 0;
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spin_unlock_irq(&chip->reg_lock);
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}
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/* check the current position */
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offset -= (pa & 0xffff);
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@ -1964,7 +1926,7 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id)
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if (event & ESM_SOUND_IRQ) {
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struct esschan *es;
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spin_lock(&chip->substream_lock);
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scoped_guard(spinlock, &chip->substream_lock) {
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list_for_each_entry(es, &chip->substream_list, list) {
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if (es->running) {
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snd_es1968_update_pcm(chip, es);
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@ -1972,7 +1934,7 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id)
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snd_es1968_suppress_jitter(chip, es);
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}
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}
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spin_unlock(&chip->substream_lock);
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}
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if (chip->in_measurement) {
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unsigned int curp = __apu_get_register(chip, chip->measure_apu, 5);
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if (curp < chip->measure_lastpos)
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