diff options
Diffstat (limited to 'sound/pcmcia/pdaudiocf/pdaudiocf_irq.c')
| -rw-r--r-- | sound/pcmcia/pdaudiocf/pdaudiocf_irq.c | 41 |
1 files changed, 14 insertions, 27 deletions
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c index dcd32201bc8c..af40a2c8789a 100644 --- a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c +++ b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Sound Core PDAudioCF soundcard * * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <sound/core.h> @@ -30,6 +17,7 @@ irqreturn_t pdacf_interrupt(int irq, void *dev) { struct snd_pdacf *chip = dev; unsigned short stat; + bool wake_thread = false; if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE| PDAUDIOCF_STAT_IS_CONFIGURED| @@ -39,15 +27,15 @@ irqreturn_t pdacf_interrupt(int irq, void *dev) stat = inw(chip->port + PDAUDIOCF_REG_ISR); if (stat & (PDAUDIOCF_IRQLVL|PDAUDIOCF_IRQOVR)) { if (stat & PDAUDIOCF_IRQOVR) /* should never happen */ - snd_printk(KERN_ERR "PDAUDIOCF SRAM buffer overrun detected!\n"); + dev_err(chip->card->dev, "PDAUDIOCF SRAM buffer overrun detected!\n"); if (chip->pcm_substream) - tasklet_schedule(&chip->tq); + wake_thread = true; if (!(stat & PDAUDIOCF_IRQAKM)) stat |= PDAUDIOCF_IRQAKM; /* check rate */ } if (get_irq_regs() != NULL) snd_ak4117_check_rate_and_errors(chip->ak4117, 0); - return IRQ_HANDLED; + return wake_thread ? IRQ_WAKE_THREAD : IRQ_HANDLED; } static inline void pdacf_transfer_mono16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port) @@ -256,20 +244,19 @@ static void pdacf_transfer(struct snd_pdacf *chip, unsigned int size, unsigned i } } -void pdacf_tasklet(unsigned long private_data) +irqreturn_t pdacf_threaded_irq(int irq, void *dev) { - struct snd_pdacf *chip = (struct snd_pdacf *) private_data; + struct snd_pdacf *chip = dev; int size, off, cont, rdp, wdp; if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|PDAUDIOCF_STAT_IS_CONFIGURED)) != PDAUDIOCF_STAT_IS_CONFIGURED) - return; + return IRQ_HANDLED; if (chip->pcm_substream == NULL || chip->pcm_substream->runtime == NULL || !snd_pcm_running(chip->pcm_substream)) - return; + return IRQ_HANDLED; rdp = inw(chip->port + PDAUDIOCF_REG_RDP); wdp = inw(chip->port + PDAUDIOCF_REG_WDP); - /* printk(KERN_DEBUG "TASKLET: rdp = %x, wdp = %x\n", rdp, wdp); */ size = wdp - rdp; if (size < 0) size += 0x10000; @@ -311,15 +298,15 @@ void pdacf_tasklet(unsigned long private_data) size -= cont; } #endif - spin_lock(&chip->reg_lock); + mutex_lock(&chip->reg_lock); while (chip->pcm_tdone >= chip->pcm_period) { chip->pcm_hwptr += chip->pcm_period; chip->pcm_hwptr %= chip->pcm_size; chip->pcm_tdone -= chip->pcm_period; - spin_unlock(&chip->reg_lock); + mutex_unlock(&chip->reg_lock); snd_pcm_period_elapsed(chip->pcm_substream); - spin_lock(&chip->reg_lock); + mutex_lock(&chip->reg_lock); } - spin_unlock(&chip->reg_lock); - /* printk(KERN_DEBUG "TASKLET: end\n"); */ + mutex_unlock(&chip->reg_lock); + return IRQ_HANDLED; } |