/* * Copyright (c) 1999 by Uros Bizjak * Takashi Iwai * * SB16ASP/AWE32 CSP control * * 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 _UAPI__SOUND_SB16_CSP_H #define _UAPI__SOUND_SB16_CSP_H /* CSP modes */ #define SNDRV_SB_CSP_MODE_NONE 0x00 #define SNDRV_SB_CSP_MODE_DSP_READ 0x01 /* Record from DSP */ #define SNDRV_SB_CSP_MODE_DSP_WRITE 0x02 /* Play to DSP */ #define SNDRV_SB_CSP_MODE_QSOUND 0x04 /* QSound */ /* CSP load flags */ #define SNDRV_SB_CSP_LOAD_FROMUSER 0x01 #define SNDRV_SB_CSP_LOAD_INITBLOCK 0x02 /* CSP sample width */ #define SNDRV_SB_CSP_SAMPLE_8BIT 0x01 #define SNDRV_SB_CSP_SAMPLE_16BIT 0x02 /* CSP channels */ #define SNDRV_SB_CSP_MONO 0x01 #define SNDRV_SB_CSP_STEREO 0x02 /* CSP rates */ #define SNDRV_SB_CSP_RATE_8000 0x01 #define SNDRV_SB_CSP_RATE_11025 0x02 #define SNDRV_SB_CSP_RATE_22050 0x04 #define SNDRV_SB_CSP_RATE_44100 0x08 #define SNDRV_SB_CSP_RATE_ALL 0x0f /* CSP running state */ #define SNDRV_SB_CSP_ST_IDLE 0x00 #define SNDRV_SB_CSP_ST_LOADED 0x01 #define SNDRV_SB_CSP_ST_RUNNING 0x02 #define SNDRV_SB_CSP_ST_PAUSED 0x04 #define SNDRV_SB_CSP_ST_AUTO 0x08 #define SNDRV_SB_CSP_ST_QSOUND 0x10 /* maximum QSound value (180 degrees right) */ #define SNDRV_SB_CSP_QSOUND_MAX_RIGHT 0x20 /* maximum microcode RIFF file size */ #define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE 0x3000 /* microcode header */ struct snd_sb_csp_mc_header { char codec_name[16]; /* id name of codec */ unsigned short func_req; /* requested function */ }; /* microcode to be loaded */ struct snd_sb_csp_microcode { struct snd_sb_csp_mc_header info; unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE]; }; /* start CSP with sample_width in mono/stereo */ struct snd_sb_csp_start { int sample_width; /* sample width, look above */ int channels; /* channels, look above */ }; /* CSP information */ struct snd_sb_csp_info { char codec_name[16]; /* id name of codec */ unsigned short func_nr; /* function number */ unsigned int acc_format; /* accepted PCM formats */ unsigned short acc_channels; /* accepted channels */ unsigned short acc_width; /* accepted sample width */ unsigned short acc_rates; /* accepted sample rates */ unsigned short csp_mode; /* CSP mode, see above */ unsigned short run_channels; /* current channels */ unsigned short run_width; /* current sample width */ unsigned short version; /* version id: 0x10 - 0x1f */ unsigned short state; /* state bits */ }; /* HWDEP controls */ /* get CSP information */ #define SNDRV_SB_CSP_IOCTL_INFO _IOR('H', 0x10, struct snd_sb_csp_info) /* load microcode to CSP */ /* NOTE: struct snd_sb_csp_microcode overflows the max size (13 bits) * defined for some architectures like MIPS, and it leads to build errors. * (x86 and co have 14-bit size, thus it's valid, though.) * As a workaround for skipping the size-limit check, here we don't use the * normal _IOW() macro but _IOC() with the manual argument. */ #define SNDRV_SB_CSP_IOCTL_LOAD_CODE \ _IOC(_IOC_WRITE, 'H', 0x11, sizeof(struct snd_sb_csp_microcode)) /* unload microcode from CSP */ #define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE _IO('H', 0x12) /* start CSP */ #define SNDRV_SB_CSP_IOCTL_START _IOW('H', 0x13, struct snd_sb_csp_start) /* stop CSP */ #define SNDRV_SB_CSP_IOCTL_STOP _IO('H', 0x14) /* pause CSP and DMA transfer */ #define SNDRV_SB_CSP_IOCTL_PAUSE _IO('H', 0x15) /* restart CSP and DMA transfer */ #define SNDRV_SB_CSP_IOCTL_RESTART _IO('H', 0x16) #endif /* _UAPI__SOUND_SB16_CSP_H */ mit();'>mode:
authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /sound/soc/fsl/pcm030-audio-fabric.c
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/soc/fsl/pcm030-audio-fabric.c')