/* * Driver for Sound Cors PDAudioCF soundcard * * Copyright (c) 2003 by Jaroslav Kysela * * 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 */ #ifndef __PDAUDIOCF_H #define __PDAUDIOCF_H #include #include #include #include #include #include /* PDAUDIOCF registers */ #define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */ #define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */ #define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */ #define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */ #define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */ #define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */ #define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */ #define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */ /* PDAUDIOCF_REG_TCR */ #define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */ #define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */ /* PDAUDIOCF_REG_SCR */ #define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */ #define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */ #define PDAUDIOCF_PDN (1<<3) /* power down bit */ #define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */ #define PDAUDIOCF_CLKDIV1 (1<<5) #define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */ #define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */ #define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */ #define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */ #define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */ #define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */ #define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */ /* PDAUDIOCF_REG_ISR */ #define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */ #define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */ #define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */ /* PDAUDIOCF_REG_IER */ #define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */ #define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */ #define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */ #define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */ #define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */ #define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */ #define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */ #define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */ #define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */ #define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */ #define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */ #define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */ /* chip status */ #define PDAUDIOCF_STAT_IS_STALE (1<<0) #define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1) #define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2) struct snd_pdacf { struct snd_card *card; int index; unsigned long port; int irq; struct mutex reg_lock; unsigned short regmap[8]; unsigned short suspend_reg_scr; spinlock_t ak4117_lock; struct ak4117 *ak4117; unsigned int chip_status; struct snd_pcm *pcm; struct snd_pcm_substream *pcm_substream; unsigned int pcm_running: 1; unsigned int pcm_channels; unsigned int pcm_swab; unsigned int pcm_little; unsigned int pcm_frame; unsigned int pcm_sample; unsigned int pcm_xor; unsigned int pcm_size; unsigned int pcm_period; unsigned int pcm_tdone; unsigned int pcm_hwptr; void *pcm_area; /* pcmcia stuff */ struct pcmcia_device *p_dev; }; static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val) { outw(chip->regmap[reg>>1] = val, chip->port + reg); } static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg) { return inw(chip->port + reg); } struct snd_pdacf *snd_pdacf_create(struct snd_card *card); int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf); void snd_pdacf_powerdown(struct snd_pdacf *chip); #ifdef CONFIG_PM int snd_pdacf_suspend(struct snd_pdacf *chip); int snd_pdacf_resume(struct snd_pdacf *chip); #endif int snd_pdacf_pcm_new(struct snd_pdacf *chip); irqreturn_t pdacf_interrupt(int irq, void *dev); irqreturn_t pdacf_threaded_irq(int irq, void *dev); void pdacf_reinit(struct snd_pdacf *chip, int resume); #endif /* __PDAUDIOCF_H */ 447a1d056765b11b24d8ff2b81366 (patch) treea7f4167960ee1df86739905b6ccdeb95465bfe5f /drivers/usb/mon parent08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff)
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed interesting code in x86. The code (ab)uses irq_domain_activate_irq() to reconfigure an already activated interrupt. That trips over the prevention code now. Fix it by deactivating the interrupt before activating the new configuration. Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once" Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
Diffstat (limited to 'drivers/usb/mon')