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3734 lines
111 KiB
3734 lines
111 KiB
20 years ago
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/*
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* ALI ali5455 and friends ICH driver for Linux
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* LEI HU <Lei_Hu@ali.com.tw>
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*
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* Built from:
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* drivers/sound/i810_audio
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*
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* The ALi 5455 is similar but not quite identical to the Intel ICH
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* series of controllers. Its easier to keep the driver separated from
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* the i810 driver.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* ALi 5455 theory of operation
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*
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* The chipset provides three DMA channels that talk to an AC97
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* CODEC (AC97 is a digital/analog mixer standard). At its simplest
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* you get 48Khz audio with basic volume and mixer controls. At the
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* best you get rate adaption in the codec. We set the card up so
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* that we never take completion interrupts but instead keep the card
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* chasing its tail around a ring buffer. This is needed for mmap
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* mode audio and happens to work rather well for non-mmap modes too.
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*
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* The board has one output channel for PCM audio (supported) and
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* a stereo line in and mono microphone input. Again these are normally
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* locked to 48Khz only. Right now recording is not finished.
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*
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* There is no midi support, no synth support. Use timidity. To get
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* esd working you need to use esd -r 48000 as it won't probe 48KHz
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* by default. mpg123 can't handle 48Khz only audio so use xmms.
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*
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* If you need to force a specific rate set the clocking= option
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*
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <linux/ioport.h>
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#include <linux/sched.h>
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#include <linux/delay.h>
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#include <linux/sound.h>
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#include <linux/slab.h>
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#include <linux/soundcard.h>
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#include <linux/pci.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <linux/init.h>
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#include <linux/poll.h>
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#include <linux/spinlock.h>
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#include <linux/smp_lock.h>
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#include <linux/ac97_codec.h>
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#include <linux/interrupt.h>
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#include <asm/uaccess.h>
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#ifndef PCI_DEVICE_ID_ALI_5455
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#define PCI_DEVICE_ID_ALI_5455 0x5455
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#endif
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#ifndef PCI_VENDOR_ID_ALI
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#define PCI_VENDOR_ID_ALI 0x10b9
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#endif
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static int strict_clocking = 0;
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static unsigned int clocking = 0;
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static unsigned int codec_pcmout_share_spdif_locked = 0;
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static unsigned int codec_independent_spdif_locked = 0;
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static unsigned int controller_pcmout_share_spdif_locked = 0;
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static unsigned int controller_independent_spdif_locked = 0;
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static unsigned int globel = 0;
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#define ADC_RUNNING 1
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#define DAC_RUNNING 2
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#define CODEC_SPDIFOUT_RUNNING 8
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#define CONTROLLER_SPDIFOUT_RUNNING 4
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#define SPDIF_ENABLE_OUTPUT 4 /* bits 0,1 are PCM */
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#define ALI5455_FMT_16BIT 1
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#define ALI5455_FMT_STEREO 2
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#define ALI5455_FMT_MASK 3
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#define SPDIF_ON 0x0004
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#define SURR_ON 0x0010
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#define CENTER_LFE_ON 0x0020
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#define VOL_MUTED 0x8000
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#define ALI_SPDIF_OUT_CH_STATUS 0xbf
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/* the 810's array of pointers to data buffers */
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struct sg_item {
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#define BUSADDR_MASK 0xFFFFFFFE
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u32 busaddr;
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#define CON_IOC 0x80000000 /* interrupt on completion */
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#define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */
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#define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */
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u32 control;
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};
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/* an instance of the ali channel */
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#define SG_LEN 32
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struct ali_channel {
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/* these sg guys should probably be allocated
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separately as nocache. Must be 8 byte aligned */
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struct sg_item sg[SG_LEN]; /* 32*8 */
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u32 offset; /* 4 */
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u32 port; /* 4 */
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u32 used;
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u32 num;
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};
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/*
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* we have 3 separate dma engines. pcm in, pcm out, and mic.
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* each dma engine has controlling registers. These goofy
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* names are from the datasheet, but make it easy to write
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* code while leafing through it.
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*/
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#define ENUM_ENGINE(PRE,DIG) \
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enum { \
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PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \
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PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \
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PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \
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PRE##_SR = 0x##DIG##6, /* Status Register */ \
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PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \
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PRE##_CR = 0x##DIG##b /* Control Register */ \
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}
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ENUM_ENGINE(OFF, 0); /* Offsets */
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ENUM_ENGINE(PI, 4); /* PCM In */
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ENUM_ENGINE(PO, 5); /* PCM Out */
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ENUM_ENGINE(MC, 6); /* Mic In */
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ENUM_ENGINE(CODECSPDIFOUT, 7); /* CODEC SPDIF OUT */
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ENUM_ENGINE(CONTROLLERSPDIFIN, A); /* CONTROLLER SPDIF In */
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ENUM_ENGINE(CONTROLLERSPDIFOUT, B); /* CONTROLLER SPDIF OUT */
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enum {
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ALI_SCR = 0x00, /* System Control Register */
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ALI_SSR = 0x04, /* System Status Register */
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ALI_DMACR = 0x08, /* DMA Control Register */
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ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */
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ALI_INTERFACECR = 0x10, /* Interface Control Register */
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ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
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ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */
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ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */
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ALI_CPR = 0x20, /* Command Port Register */
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ALI_SPR = 0x24, /* Status Port Register */
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ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */
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ALI_TTSR = 0x30, /* Transmit Tag Slot Register */
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ALI_RTSR = 0x34, /* Receive Tag Slot Register */
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ALI_CSPSR = 0x38, /* Command/Status Port Status Register */
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ALI_CAS = 0x3c, /* Codec Write Semaphore Register */
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ALI_SPDIFCSR = 0xf8, /* spdif channel status register */
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ALI_SPDIFICS = 0xfc /* spdif interface control/status */
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};
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// x-status register(x:pcm in ,pcm out, mic in,)
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/* interrupts for a dma engine */
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#define DMA_INT_FIFO (1<<4) /* fifo under/over flow */
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#define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */
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#define DMA_INT_LVI (1<<2) /* last valid done */
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#define DMA_INT_CELV (1<<1) /* last valid is current */
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#define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ //not eqult intel
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#define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI)
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/* interrupts for the whole chip */// by interrupt status register finish
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#define INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */
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#define INT_SPDIFIN (1<<22)
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#define INT_CODECSPDIFOUT (1<<19)
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#define INT_MICIN (1<<18)
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#define INT_PCMOUT (1<<17)
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#define INT_PCMIN (1<<16)
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#define INT_CPRAIS (1<<7)
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#define INT_SPRAIS (1<<5)
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#define INT_GPIO (1<<1)
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#define INT_MASK (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN)
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#define DRIVER_VERSION "0.02ac"
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/* magic numbers to protect our data structures */
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#define ALI5455_CARD_MAGIC 0x5072696E /* "Prin" */
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#define ALI5455_STATE_MAGIC 0x63657373 /* "cess" */
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#define ALI5455_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */
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#define NR_HW_CH 5 //I think 5 channel
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/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
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#define NR_AC97 2
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/* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */
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/* stream at a minimum for this card to be happy */
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static const unsigned sample_size[] = { 1, 2, 2, 4 };
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/* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */
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/* values are one less than might be expected */
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static const unsigned sample_shift[] = { -1, 0, 0, 1 };
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#define ALI5455
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static char *card_names[] = {
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"ALI 5455"
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};
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static struct pci_device_id ali_pci_tbl[] = {
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{PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455},
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, ali_pci_tbl);
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#ifdef CONFIG_PM
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#define PM_SUSPENDED(card) (card->pm_suspended)
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#else
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#define PM_SUSPENDED(card) (0)
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#endif
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/* "software" or virtual channel, an instance of opened /dev/dsp */
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struct ali_state {
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unsigned int magic;
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struct ali_card *card; /* Card info */
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/* single open lock mechanism, only used for recording */
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struct semaphore open_sem;
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wait_queue_head_t open_wait;
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/* file mode */
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mode_t open_mode;
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/* virtual channel number */
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int virt;
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#ifdef CONFIG_PM
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unsigned int pm_saved_dac_rate, pm_saved_adc_rate;
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#endif
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struct dmabuf {
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/* wave sample stuff */
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unsigned int rate;
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unsigned char fmt, enable, trigger;
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/* hardware channel */
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struct ali_channel *read_channel;
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struct ali_channel *write_channel;
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struct ali_channel *codec_spdifout_channel;
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struct ali_channel *controller_spdifout_channel;
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/* OSS buffer management stuff */
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void *rawbuf;
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dma_addr_t dma_handle;
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unsigned buforder;
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unsigned numfrag;
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unsigned fragshift;
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/* our buffer acts like a circular ring */
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unsigned hwptr; /* where dma last started, updated by update_ptr */
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unsigned swptr; /* where driver last clear/filled, updated by read/write */
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int count; /* bytes to be consumed or been generated by dma machine */
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unsigned total_bytes; /* total bytes dmaed by hardware */
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unsigned error; /* number of over/underruns */
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wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
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/* redundant, but makes calculations easier */
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/* what the hardware uses */
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unsigned dmasize;
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unsigned fragsize;
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unsigned fragsamples;
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/* what we tell the user to expect */
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unsigned userfrags;
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unsigned userfragsize;
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/* OSS stuff */
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unsigned mapped:1;
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unsigned ready:1;
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unsigned update_flag;
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unsigned ossfragsize;
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unsigned ossmaxfrags;
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unsigned subdivision;
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} dmabuf;
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};
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struct ali_card {
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struct ali_channel channel[5];
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unsigned int magic;
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/* We keep ali5455 cards in a linked list */
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struct ali_card *next;
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/* The ali has a certain amount of cross channel interaction
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so we use a single per card lock */
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spinlock_t lock;
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spinlock_t ac97_lock;
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|
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/* PCI device stuff */
|
||
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struct pci_dev *pci_dev;
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u16 pci_id;
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#ifdef CONFIG_PM
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u16 pm_suspended;
|
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int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97];
|
||
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#endif
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/* soundcore stuff */
|
||
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int dev_audio;
|
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|
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/* structures for abstraction of hardware facilities, codecs, banks and channels */
|
||
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struct ac97_codec *ac97_codec[NR_AC97];
|
||
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struct ali_state *states[NR_HW_CH];
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||
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|
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u16 ac97_features;
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u16 ac97_status;
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u16 channels;
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/* hardware resources */
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unsigned long iobase;
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u32 irq;
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/* Function support */
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||
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struct ali_channel *(*alloc_pcm_channel) (struct ali_card *);
|
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struct ali_channel *(*alloc_rec_pcm_channel) (struct ali_card *);
|
||
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struct ali_channel *(*alloc_rec_mic_channel) (struct ali_card *);
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struct ali_channel *(*alloc_codec_spdifout_channel) (struct ali_card *);
|
||
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struct ali_channel *(*alloc_controller_spdifout_channel) (struct ali_card *);
|
||
|
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void (*free_pcm_channel) (struct ali_card *, int chan);
|
||
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|
||
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/* We have a *very* long init time possibly, so use this to block */
|
||
|
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/* attempts to open our devices before we are ready (stops oops'es) */
|
||
|
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int initializing;
|
||
|
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};
|
||
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|
||
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|
||
|
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static struct ali_card *devs = NULL;
|
||
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|
||
|
|
static int ali_open_mixdev(struct inode *inode, struct file *file);
|
||
|
|
static int ali_ioctl_mixdev(struct inode *inode, struct file *file,
|
||
|
|
unsigned int cmd, unsigned long arg);
|
||
|
|
static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg);
|
||
|
|
static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
|
||
|
|
|
||
|
|
static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card)
|
||
|
|
{
|
||
|
|
if (card->channel[1].used == 1)
|
||
|
|
return NULL;
|
||
|
|
card->channel[1].used = 1;
|
||
|
|
return &card->channel[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card)
|
||
|
|
{
|
||
|
|
if (card->channel[0].used == 1)
|
||
|
|
return NULL;
|
||
|
|
card->channel[0].used = 1;
|
||
|
|
return &card->channel[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card)
|
||
|
|
{
|
||
|
|
if (card->channel[2].used == 1)
|
||
|
|
return NULL;
|
||
|
|
card->channel[2].used = 1;
|
||
|
|
return &card->channel[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card)
|
||
|
|
{
|
||
|
|
if (card->channel[3].used == 1)
|
||
|
|
return NULL;
|
||
|
|
card->channel[3].used = 1;
|
||
|
|
return &card->channel[3];
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card)
|
||
|
|
{
|
||
|
|
if (card->channel[4].used == 1)
|
||
|
|
return NULL;
|
||
|
|
card->channel[4].used = 1;
|
||
|
|
return &card->channel[4];
|
||
|
|
}
|
||
|
|
static void ali_free_pcm_channel(struct ali_card *card, int channel)
|
||
|
|
{
|
||
|
|
card->channel[channel].used = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//add support codec spdif out
|
||
|
|
static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate)
|
||
|
|
{
|
||
|
|
unsigned long id = 0L;
|
||
|
|
|
||
|
|
id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16);
|
||
|
|
id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff;
|
||
|
|
switch (id) {
|
||
|
|
case 0x41445361: /* AD1886 */
|
||
|
|
if (rate == 48000) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 0x414c4720: /* ALC650 */
|
||
|
|
if (rate == 48000) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default: /* all other codecs, until we know otherwiae */
|
||
|
|
if (rate == 48000 || rate == 44100 || rate == 32000) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ali_set_spdif_output
|
||
|
|
*
|
||
|
|
* Configure the S/PDIF output transmitter. When we turn on
|
||
|
|
* S/PDIF, we turn off the analog output. This may not be
|
||
|
|
* the right thing to do.
|
||
|
|
*
|
||
|
|
* Assumptions:
|
||
|
|
* The DSP sample rate must already be set to a supported
|
||
|
|
* S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort.
|
||
|
|
*/
|
||
|
|
static void ali_set_spdif_output(struct ali_state *state, int slots,
|
||
|
|
int rate)
|
||
|
|
{
|
||
|
|
int vol;
|
||
|
|
int aud_reg;
|
||
|
|
struct ac97_codec *codec = state->card->ac97_codec[0];
|
||
|
|
|
||
|
|
if (!(state->card->ac97_features & 4)) {
|
||
|
|
state->card->ac97_status &= ~SPDIF_ON;
|
||
|
|
} else {
|
||
|
|
if (slots == -1) { /* Turn off S/PDIF */
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
|
||
|
|
|
||
|
|
/* If the volume wasn't muted before we turned on S/PDIF, unmute it */
|
||
|
|
if (!(state->card->ac97_status & VOL_MUTED)) {
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO);
|
||
|
|
ali_ac97_set(codec, AC97_MASTER_VOL_STEREO,
|
||
|
|
(aud_reg & ~VOL_MUTED));
|
||
|
|
}
|
||
|
|
state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO);
|
||
|
|
state->card->ac97_status = vol & VOL_MUTED;
|
||
|
|
|
||
|
|
/* Set S/PDIF transmitter sample rate */
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
|
||
|
|
switch (rate) {
|
||
|
|
case 32000:
|
||
|
|
aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K;
|
||
|
|
break;
|
||
|
|
case 44100:
|
||
|
|
aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K;
|
||
|
|
break;
|
||
|
|
case 48000:
|
||
|
|
aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
/* turn off S/PDIF */
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
|
||
|
|
state->card->ac97_status &= ~SPDIF_ON;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg);
|
||
|
|
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
|
||
|
|
aud_reg = (aud_reg & AC97_EA_SLOT_MASK) | slots | AC97_EA_SPDIF;
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
|
||
|
|
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL);
|
||
|
|
aud_reg |= 0x0002;
|
||
|
|
ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg);
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
state->card->ac97_status |= SPDIF_ON;
|
||
|
|
|
||
|
|
/* Check to make sure the configuration is valid */
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
|
||
|
|
if (!(aud_reg & 0x0400)) {
|
||
|
|
/* turn off S/PDIF */
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
|
||
|
|
state->card->ac97_status &= ~SPDIF_ON;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
aud_reg = ali_ac97_get(codec, 0x6a);
|
||
|
|
ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff));
|
||
|
|
}
|
||
|
|
/* Mute the analog output */
|
||
|
|
/* Should this only mute the PCM volume??? */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ali_set_dac_channels
|
||
|
|
*
|
||
|
|
* Configure the codec's multi-channel DACs
|
||
|
|
*
|
||
|
|
* The logic is backwards. Setting the bit to 1 turns off the DAC.
|
||
|
|
*
|
||
|
|
* What about the ICH? We currently configure it using the
|
||
|
|
* SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC,
|
||
|
|
* does that imply that we want the ICH set to support
|
||
|
|
* these channels?
|
||
|
|
*
|
||
|
|
* TODO:
|
||
|
|
* vailidate that the codec really supports these DACs
|
||
|
|
* before turning them on.
|
||
|
|
*/
|
||
|
|
static void ali_set_dac_channels(struct ali_state *state, int channel)
|
||
|
|
{
|
||
|
|
int aud_reg;
|
||
|
|
struct ac97_codec *codec = state->card->ac97_codec[0];
|
||
|
|
|
||
|
|
aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
|
||
|
|
aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK;
|
||
|
|
state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON);
|
||
|
|
|
||
|
|
switch (channel) {
|
||
|
|
case 2: /* always enabled */
|
||
|
|
break;
|
||
|
|
case 4:
|
||
|
|
aud_reg &= ~AC97_EA_PRJ;
|
||
|
|
state->card->ac97_status |= SURR_ON;
|
||
|
|
break;
|
||
|
|
case 6:
|
||
|
|
aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK);
|
||
|
|
state->card->ac97_status |= SURR_ON | CENTER_LFE_ON;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set playback sample rate */
|
||
|
|
static unsigned int ali_set_dac_rate(struct ali_state *state,
|
||
|
|
unsigned int rate)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
u32 new_rate;
|
||
|
|
struct ac97_codec *codec = state->card->ac97_codec[0];
|
||
|
|
|
||
|
|
if (!(state->card->ac97_features & 0x0001)) {
|
||
|
|
dmabuf->rate = clocking;
|
||
|
|
return clocking;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rate > 48000)
|
||
|
|
rate = 48000;
|
||
|
|
if (rate < 8000)
|
||
|
|
rate = 8000;
|
||
|
|
dmabuf->rate = rate;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Adjust for misclocked crap
|
||
|
|
*/
|
||
|
|
|
||
|
|
rate = (rate * clocking) / 48000;
|
||
|
|
|
||
|
|
if (strict_clocking && rate < 8000) {
|
||
|
|
rate = 8000;
|
||
|
|
dmabuf->rate = (rate * 48000) / clocking;
|
||
|
|
}
|
||
|
|
|
||
|
|
new_rate = ac97_set_dac_rate(codec, rate);
|
||
|
|
if (new_rate != rate) {
|
||
|
|
dmabuf->rate = (new_rate * 48000) / clocking;
|
||
|
|
}
|
||
|
|
rate = new_rate;
|
||
|
|
return dmabuf->rate;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set recording sample rate */
|
||
|
|
static unsigned int ali_set_adc_rate(struct ali_state *state,
|
||
|
|
unsigned int rate)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
u32 new_rate;
|
||
|
|
struct ac97_codec *codec = state->card->ac97_codec[0];
|
||
|
|
|
||
|
|
if (!(state->card->ac97_features & 0x0001)) {
|
||
|
|
dmabuf->rate = clocking;
|
||
|
|
return clocking;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rate > 48000)
|
||
|
|
rate = 48000;
|
||
|
|
if (rate < 8000)
|
||
|
|
rate = 8000;
|
||
|
|
dmabuf->rate = rate;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Adjust for misclocked crap
|
||
|
|
*/
|
||
|
|
|
||
|
|
rate = (rate * clocking) / 48000;
|
||
|
|
if (strict_clocking && rate < 8000) {
|
||
|
|
rate = 8000;
|
||
|
|
dmabuf->rate = (rate * 48000) / clocking;
|
||
|
|
}
|
||
|
|
|
||
|
|
new_rate = ac97_set_adc_rate(codec, rate);
|
||
|
|
|
||
|
|
if (new_rate != rate) {
|
||
|
|
dmabuf->rate = (new_rate * 48000) / clocking;
|
||
|
|
rate = new_rate;
|
||
|
|
}
|
||
|
|
return dmabuf->rate;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set codec independent spdifout sample rate */
|
||
|
|
static unsigned int ali_set_codecspdifout_rate(struct ali_state *state,
|
||
|
|
unsigned int rate)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
|
||
|
|
if (!(state->card->ac97_features & 0x0001)) {
|
||
|
|
dmabuf->rate = clocking;
|
||
|
|
return clocking;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rate > 48000)
|
||
|
|
rate = 48000;
|
||
|
|
if (rate < 8000)
|
||
|
|
rate = 8000;
|
||
|
|
dmabuf->rate = rate;
|
||
|
|
|
||
|
|
return dmabuf->rate;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set controller independent spdif out function sample rate */
|
||
|
|
static void ali_set_spdifout_rate(struct ali_state *state,
|
||
|
|
unsigned int rate)
|
||
|
|
{
|
||
|
|
unsigned char ch_st_sel;
|
||
|
|
unsigned short status_rate;
|
||
|
|
|
||
|
|
switch (rate) {
|
||
|
|
case 44100:
|
||
|
|
status_rate = 0;
|
||
|
|
break;
|
||
|
|
case 32000:
|
||
|
|
status_rate = 0x300;
|
||
|
|
break;
|
||
|
|
case 48000:
|
||
|
|
default:
|
||
|
|
status_rate = 0x200;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out
|
||
|
|
|
||
|
|
ch_st_sel |= 0x80; //select right
|
||
|
|
outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS));
|
||
|
|
outb(status_rate | 0x20, (state->card->iobase + ALI_SPDIFCSR + 2));
|
||
|
|
|
||
|
|
ch_st_sel &= (~0x80); //select left
|
||
|
|
outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS));
|
||
|
|
outw(status_rate | 0x10, (state->card->iobase + ALI_SPDIFCSR + 2));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* get current playback/recording dma buffer pointer (byte offset from LBA),
|
||
|
|
called with spinlock held! */
|
||
|
|
|
||
|
|
static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned int civ, offset, port, port_picb;
|
||
|
|
unsigned int data;
|
||
|
|
|
||
|
|
if (!dmabuf->enable)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (rec == 1)
|
||
|
|
port = state->card->iobase + dmabuf->read_channel->port;
|
||
|
|
else if (rec == 2)
|
||
|
|
port = state->card->iobase + dmabuf->codec_spdifout_channel->port;
|
||
|
|
else if (rec == 3)
|
||
|
|
port = state->card->iobase + dmabuf->controller_spdifout_channel->port;
|
||
|
|
else
|
||
|
|
port = state->card->iobase + dmabuf->write_channel->port;
|
||
|
|
|
||
|
|
port_picb = port + OFF_PICB;
|
||
|
|
|
||
|
|
do {
|
||
|
|
civ = inb(port + OFF_CIV) & 31;
|
||
|
|
offset = inw(port_picb);
|
||
|
|
/* Must have a delay here! */
|
||
|
|
if (offset == 0)
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
/* Reread both registers and make sure that that total
|
||
|
|
* offset from the first reading to the second is 0.
|
||
|
|
* There is an issue with SiS hardware where it will count
|
||
|
|
* picb down to 0, then update civ to the next value,
|
||
|
|
* then set the new picb to fragsize bytes. We can catch
|
||
|
|
* it between the civ update and the picb update, making
|
||
|
|
* it look as though we are 1 fragsize ahead of where we
|
||
|
|
* are. The next to we get the address though, it will
|
||
|
|
* be back in thdelay is more than long enough
|
||
|
|
* that we won't have to worry about the chip still being
|
||
|
|
* out of sync with reality ;-)
|
||
|
|
*/
|
||
|
|
} while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb));
|
||
|
|
|
||
|
|
data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize;
|
||
|
|
if (inw(port_picb) == 0)
|
||
|
|
data -= 2048;
|
||
|
|
|
||
|
|
return data;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Stop recording (lock held) */
|
||
|
|
static inline void __stop_adc(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
|
||
|
|
dmabuf->enable &= ~ADC_RUNNING;
|
||
|
|
|
||
|
|
outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR);
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
outb(0, card->iobase + PI_CR);
|
||
|
|
while (inb(card->iobase + PI_CR) != 0);
|
||
|
|
|
||
|
|
// now clear any latent interrupt bits (like the halt bit)
|
||
|
|
outb(inb(card->iobase + PI_SR) | 0x001e, card->iobase + PI_SR);
|
||
|
|
outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMIN, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void stop_adc(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__stop_adc(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void __start_adc(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
|
||
|
|
if (dmabuf->count < dmabuf->dmasize && dmabuf->ready
|
||
|
|
&& !dmabuf->enable && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
|
||
|
|
dmabuf->enable |= ADC_RUNNING;
|
||
|
|
outb((1 << 4) | (1 << 2), state->card->iobase + PI_CR);
|
||
|
|
if (state->card->channel[0].used == 1)
|
||
|
|
outl(1, state->card->iobase + ALI_DMACR); // DMA CONTROL REGISTRER
|
||
|
|
udelay(100);
|
||
|
|
if (state->card->channel[2].used == 1)
|
||
|
|
outl((1 << 2), state->card->iobase + ALI_DMACR); //DMA CONTROL REGISTER
|
||
|
|
udelay(100);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void start_adc(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__start_adc(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* stop playback (lock held) */
|
||
|
|
static inline void __stop_dac(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
|
||
|
|
dmabuf->enable &= ~DAC_RUNNING;
|
||
|
|
outl(0x00020000, card->iobase + 0x08);
|
||
|
|
outb(0, card->iobase + PO_CR);
|
||
|
|
while (inb(card->iobase + PO_CR) != 0)
|
||
|
|
cpu_relax();
|
||
|
|
|
||
|
|
outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR);
|
||
|
|
|
||
|
|
outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void stop_dac(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__stop_dac(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void __start_dac(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
|
||
|
|
(dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
|
||
|
|
dmabuf->enable |= DAC_RUNNING;
|
||
|
|
outb((1 << 4) | (1 << 2), state->card->iobase + PO_CR);
|
||
|
|
outl((1 << 1), state->card->iobase + 0x08); //dma control register
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void start_dac(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__start_dac(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* stop codec and controller spdif out (lock held) */
|
||
|
|
static inline void __stop_spdifout(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->enable &= ~CODEC_SPDIFOUT_RUNNING;
|
||
|
|
outl((1 << 19), card->iobase + 0x08);
|
||
|
|
outb(0, card->iobase + CODECSPDIFOUT_CR);
|
||
|
|
|
||
|
|
while (inb(card->iobase + CODECSPDIFOUT_CR) != 0)
|
||
|
|
cpu_relax();
|
||
|
|
|
||
|
|
outb(inb(card->iobase + CODECSPDIFOUT_SR) | 0x001e, card->iobase + CODECSPDIFOUT_SR);
|
||
|
|
outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_CODECSPDIFOUT, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->enable &= ~CONTROLLER_SPDIFOUT_RUNNING;
|
||
|
|
outl((1 << 23), card->iobase + 0x08);
|
||
|
|
outb(0, card->iobase + CONTROLLERSPDIFOUT_CR);
|
||
|
|
while (inb(card->iobase + CONTROLLERSPDIFOUT_CR) != 0)
|
||
|
|
cpu_relax();
|
||
|
|
outb(inb(card->iobase + CONTROLLERSPDIFOUT_SR) | 0x001e, card->iobase + CONTROLLERSPDIFOUT_SR);
|
||
|
|
outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_SPDIFOUT, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void stop_spdifout(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__stop_spdifout(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void __start_spdifout(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
|
||
|
|
(dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->enable |= CODEC_SPDIFOUT_RUNNING;
|
||
|
|
outb((1 << 4) | (1 << 2), state->card->iobase + CODECSPDIFOUT_CR);
|
||
|
|
outl((1 << 3), state->card->iobase + 0x08); //dma control register
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->enable |= CONTROLLER_SPDIFOUT_RUNNING;
|
||
|
|
outb((1 << 4) | (1 << 2), state->card->iobase + CONTROLLERSPDIFOUT_CR);
|
||
|
|
outl((1 << 7), state->card->iobase + 0x08); //dma control register
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void start_spdifout(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
unsigned long flags;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
__start_spdifout(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
|
||
|
|
#define DMABUF_MINORDER 1
|
||
|
|
|
||
|
|
/* allocate DMA buffer, playback , recording,spdif out buffer should be allocated separately */
|
||
|
|
static int alloc_dmabuf(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
void *rawbuf = NULL;
|
||
|
|
int order, size;
|
||
|
|
struct page *page, *pend;
|
||
|
|
|
||
|
|
/* If we don't have any oss frag params, then use our default ones */
|
||
|
|
if (dmabuf->ossmaxfrags == 0)
|
||
|
|
dmabuf->ossmaxfrags = 4;
|
||
|
|
if (dmabuf->ossfragsize == 0)
|
||
|
|
dmabuf->ossfragsize = (PAGE_SIZE << DMABUF_DEFAULTORDER) / dmabuf->ossmaxfrags;
|
||
|
|
size = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
|
||
|
|
|
||
|
|
if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size)
|
||
|
|
return 0;
|
||
|
|
/* alloc enough to satisfy the oss params */
|
||
|
|
for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
|
||
|
|
if ((PAGE_SIZE << order) > size)
|
||
|
|
continue;
|
||
|
|
if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
|
||
|
|
PAGE_SIZE << order,
|
||
|
|
&dmabuf->dma_handle)))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (!rawbuf)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
dmabuf->ready = dmabuf->mapped = 0;
|
||
|
|
dmabuf->rawbuf = rawbuf;
|
||
|
|
dmabuf->buforder = order;
|
||
|
|
|
||
|
|
/* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
|
||
|
|
pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
|
||
|
|
for (page = virt_to_page(rawbuf); page <= pend; page++)
|
||
|
|
SetPageReserved(page);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* free DMA buffer */
|
||
|
|
static void dealloc_dmabuf(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
struct page *page, *pend;
|
||
|
|
|
||
|
|
if (dmabuf->rawbuf) {
|
||
|
|
/* undo marking the pages as reserved */
|
||
|
|
pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
|
||
|
|
for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
|
||
|
|
ClearPageReserved(page);
|
||
|
|
pci_free_consistent(state->card->pci_dev,
|
||
|
|
PAGE_SIZE << dmabuf->buforder,
|
||
|
|
dmabuf->rawbuf, dmabuf->dma_handle);
|
||
|
|
}
|
||
|
|
dmabuf->rawbuf = NULL;
|
||
|
|
dmabuf->mapped = dmabuf->ready = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int prog_dmabuf(struct ali_state *state, unsigned rec)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
struct ali_channel *c = NULL;
|
||
|
|
struct sg_item *sg;
|
||
|
|
unsigned long flags;
|
||
|
|
int ret;
|
||
|
|
unsigned fragint;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
__stop_dac(state);
|
||
|
|
if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
__stop_adc(state);
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
|
||
|
|
dmabuf->total_bytes = 0;
|
||
|
|
dmabuf->count = dmabuf->error = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr = 0;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
|
||
|
|
/* allocate DMA buffer, let alloc_dmabuf determine if we are already
|
||
|
|
* allocated well enough or if we should replace the current buffer
|
||
|
|
* (assuming one is already allocated, if it isn't, then allocate it).
|
||
|
|
*/
|
||
|
|
if ((ret = alloc_dmabuf(state)))
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
/* FIXME: figure out all this OSS fragment stuff */
|
||
|
|
/* I did, it now does what it should according to the OSS API. DL */
|
||
|
|
/* We may not have realloced our dmabuf, but the fragment size to
|
||
|
|
* fragment number ratio may have changed, so go ahead and reprogram
|
||
|
|
* things
|
||
|
|
*/
|
||
|
|
|
||
|
|
dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder;
|
||
|
|
dmabuf->numfrag = SG_LEN;
|
||
|
|
dmabuf->fragsize = dmabuf->dmasize / dmabuf->numfrag;
|
||
|
|
dmabuf->fragsamples = dmabuf->fragsize >> 1;
|
||
|
|
dmabuf->userfragsize = dmabuf->ossfragsize;
|
||
|
|
dmabuf->userfrags = dmabuf->dmasize / dmabuf->ossfragsize;
|
||
|
|
|
||
|
|
memset(dmabuf->rawbuf, 0, dmabuf->dmasize);
|
||
|
|
|
||
|
|
if (dmabuf->ossmaxfrags == 4) {
|
||
|
|
fragint = 8;
|
||
|
|
dmabuf->fragshift = 2;
|
||
|
|
} else if (dmabuf->ossmaxfrags == 8) {
|
||
|
|
fragint = 4;
|
||
|
|
dmabuf->fragshift = 3;
|
||
|
|
} else if (dmabuf->ossmaxfrags == 16) {
|
||
|
|
fragint = 2;
|
||
|
|
dmabuf->fragshift = 4;
|
||
|
|
} else {
|
||
|
|
fragint = 1;
|
||
|
|
dmabuf->fragshift = 5;
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* Now set up the ring
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (rec == 1)
|
||
|
|
c = dmabuf->read_channel;
|
||
|
|
else if (rec == 2)
|
||
|
|
c = dmabuf->codec_spdifout_channel;
|
||
|
|
else if (rec == 3)
|
||
|
|
c = dmabuf->controller_spdifout_channel;
|
||
|
|
else if (rec == 0)
|
||
|
|
c = dmabuf->write_channel;
|
||
|
|
if (c != NULL) {
|
||
|
|
sg = &c->sg[0];
|
||
|
|
/*
|
||
|
|
* Load up 32 sg entries and take an interrupt at half
|
||
|
|
* way (we might want more interrupts later..)
|
||
|
|
*/
|
||
|
|
for (i = 0; i < dmabuf->numfrag; i++) {
|
||
|
|
sg->busaddr =
|
||
|
|
virt_to_bus(dmabuf->rawbuf +
|
||
|
|
dmabuf->fragsize * i);
|
||
|
|
// the card will always be doing 16bit stereo
|
||
|
|
sg->control = dmabuf->fragsamples;
|
||
|
|
sg->control |= CON_BUFPAD; //I modify
|
||
|
|
// set us up to get IOC interrupts as often as needed to
|
||
|
|
// satisfy numfrag requirements, no more
|
||
|
|
if (((i + 1) % fragint) == 0) {
|
||
|
|
sg->control |= CON_IOC;
|
||
|
|
}
|
||
|
|
sg++;
|
||
|
|
}
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */
|
||
|
|
outl(virt_to_bus(&c->sg[0]), state->card->iobase + c->port + OFF_BDBAR);
|
||
|
|
outb(0, state->card->iobase + c->port + OFF_CIV);
|
||
|
|
outb(0, state->card->iobase + c->port + OFF_LVI);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
/* set the ready flag for the dma buffer */
|
||
|
|
dmabuf->ready = 1;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __ali_update_lvi(struct ali_state *state, int rec)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
int x, port;
|
||
|
|
port = state->card->iobase;
|
||
|
|
if (rec == 1)
|
||
|
|
port += dmabuf->read_channel->port;
|
||
|
|
else if (rec == 2)
|
||
|
|
port += dmabuf->codec_spdifout_channel->port;
|
||
|
|
else if (rec == 3)
|
||
|
|
port += dmabuf->controller_spdifout_channel->port;
|
||
|
|
else if (rec == 0)
|
||
|
|
port += dmabuf->write_channel->port;
|
||
|
|
/* if we are currently stopped, then our CIV is actually set to our
|
||
|
|
* *last* sg segment and we are ready to wrap to the next. However,
|
||
|
|
* if we set our LVI to the last sg segment, then it won't wrap to
|
||
|
|
* the next sg segment, it won't even get a start. So, instead, when
|
||
|
|
* we are stopped, we set both the LVI value and also we increment
|
||
|
|
* the CIV value to the next sg segment to be played so that when
|
||
|
|
* we call start_{dac,adc}, things will operate properly
|
||
|
|
*/
|
||
|
|
if (!dmabuf->enable && dmabuf->ready) {
|
||
|
|
if (rec && dmabuf->count < dmabuf->dmasize && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
|
||
|
|
outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
|
||
|
|
__start_adc(state);
|
||
|
|
while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
|
||
|
|
cpu_relax();
|
||
|
|
} else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
|
||
|
|
outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
|
||
|
|
__start_dac(state);
|
||
|
|
while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
|
||
|
|
cpu_relax();
|
||
|
|
} else if (rec && dmabuf->count && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
// outb((inb(port+OFF_CIV))&31, port+OFF_LVI);
|
||
|
|
outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
|
||
|
|
__start_spdifout(state);
|
||
|
|
while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
|
||
|
|
cpu_relax();
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
|
||
|
|
__start_spdifout(state);
|
||
|
|
while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
|
||
|
|
cpu_relax();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* swptr - 1 is the tail of our transfer */
|
||
|
|
x = (dmabuf->dmasize + dmabuf->swptr - 1) % dmabuf->dmasize;
|
||
|
|
x /= dmabuf->fragsize;
|
||
|
|
outb(x, port + OFF_LVI);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ali_update_lvi(struct ali_state *state, int rec)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
if (!dmabuf->ready)
|
||
|
|
return;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
__ali_update_lvi(state, rec);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
|
||
|
|
static void ali_update_ptr(struct ali_state *state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned hwptr;
|
||
|
|
int diff;
|
||
|
|
|
||
|
|
/* error handling and process wake up for DAC */
|
||
|
|
if (dmabuf->enable == ADC_RUNNING) {
|
||
|
|
/* update hardware pointer */
|
||
|
|
hwptr = ali_get_dma_addr(state, 1);
|
||
|
|
diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
|
||
|
|
dmabuf->hwptr = hwptr;
|
||
|
|
dmabuf->total_bytes += diff;
|
||
|
|
dmabuf->count += diff;
|
||
|
|
if (dmabuf->count > dmabuf->dmasize) {
|
||
|
|
/* buffer underrun or buffer overrun */
|
||
|
|
/* this is normal for the end of a read */
|
||
|
|
/* only give an error if we went past the */
|
||
|
|
/* last valid sg entry */
|
||
|
|
if ((inb(state->card->iobase + PI_CIV) & 31) != (inb(state->card->iobase + PI_LVI) & 31)) {
|
||
|
|
printk(KERN_WARNING "ali_audio: DMA overrun on read\n");
|
||
|
|
dmabuf->error++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dmabuf->count > dmabuf->userfragsize)
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
/* error handling and process wake up for DAC */
|
||
|
|
if (dmabuf->enable == DAC_RUNNING) {
|
||
|
|
/* update hardware pointer */
|
||
|
|
hwptr = ali_get_dma_addr(state, 0);
|
||
|
|
diff =
|
||
|
|
(dmabuf->dmasize + hwptr -
|
||
|
|
dmabuf->hwptr) % dmabuf->dmasize;
|
||
|
|
#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
|
||
|
|
printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff);
|
||
|
|
#endif
|
||
|
|
dmabuf->hwptr = hwptr;
|
||
|
|
dmabuf->total_bytes += diff;
|
||
|
|
dmabuf->count -= diff;
|
||
|
|
if (dmabuf->count < 0) {
|
||
|
|
/* buffer underrun or buffer overrun */
|
||
|
|
/* this is normal for the end of a write */
|
||
|
|
/* only give an error if we went past the */
|
||
|
|
/* last valid sg entry */
|
||
|
|
if ((inb(state->card->iobase + PO_CIV) & 31) != (inb(state->card->iobase + PO_LVI) & 31)) {
|
||
|
|
printk(KERN_WARNING "ali_audio: DMA overrun on write\n");
|
||
|
|
printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n",
|
||
|
|
inb(state->card->iobase + PO_CIV) & 31,
|
||
|
|
inb(state->card->iobase + PO_LVI) & 31,
|
||
|
|
dmabuf->hwptr,
|
||
|
|
dmabuf->count);
|
||
|
|
dmabuf->error++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* error handling and process wake up for CODEC SPDIF OUT */
|
||
|
|
if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
/* update hardware pointer */
|
||
|
|
hwptr = ali_get_dma_addr(state, 2);
|
||
|
|
diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
|
||
|
|
dmabuf->hwptr = hwptr;
|
||
|
|
dmabuf->total_bytes += diff;
|
||
|
|
dmabuf->count -= diff;
|
||
|
|
if (dmabuf->count < 0) {
|
||
|
|
/* buffer underrun or buffer overrun */
|
||
|
|
/* this is normal for the end of a write */
|
||
|
|
/* only give an error if we went past the */
|
||
|
|
/* last valid sg entry */
|
||
|
|
if ((inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31)) {
|
||
|
|
printk(KERN_WARNING "ali_audio: DMA overrun on write\n");
|
||
|
|
printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n",
|
||
|
|
inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31,
|
||
|
|
inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31,
|
||
|
|
dmabuf->hwptr, dmabuf->count);
|
||
|
|
dmabuf->error++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
/* error handling and process wake up for CONTROLLER SPDIF OUT */
|
||
|
|
if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
|
||
|
|
/* update hardware pointer */
|
||
|
|
hwptr = ali_get_dma_addr(state, 3);
|
||
|
|
diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
|
||
|
|
dmabuf->hwptr = hwptr;
|
||
|
|
dmabuf->total_bytes += diff;
|
||
|
|
dmabuf->count -= diff;
|
||
|
|
if (dmabuf->count < 0) {
|
||
|
|
/* buffer underrun or buffer overrun */
|
||
|
|
/* this is normal for the end of a write */
|
||
|
|
/* only give an error if we went past the */
|
||
|
|
/* last valid sg entry */
|
||
|
|
if ((inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31)) {
|
||
|
|
printk(KERN_WARNING
|
||
|
|
"ali_audio: DMA overrun on write\n");
|
||
|
|
printk("ali_audio: CIV %d, LVI %d, hwptr %x, "
|
||
|
|
"count %d\n",
|
||
|
|
inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31,
|
||
|
|
inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31,
|
||
|
|
dmabuf->hwptr, dmabuf->count);
|
||
|
|
dmabuf->error++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ali_get_free_write_space(struct
|
||
|
|
ali_state
|
||
|
|
*state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
int free;
|
||
|
|
|
||
|
|
if (dmabuf->count < 0) {
|
||
|
|
dmabuf->count = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
}
|
||
|
|
free = dmabuf->dmasize - dmabuf->swptr;
|
||
|
|
if ((dmabuf->count + free) > dmabuf->dmasize){
|
||
|
|
free = dmabuf->dmasize - dmabuf->count;
|
||
|
|
}
|
||
|
|
return free;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ali_get_available_read_data(struct
|
||
|
|
ali_state
|
||
|
|
*state)
|
||
|
|
{
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
int avail;
|
||
|
|
ali_update_ptr(state);
|
||
|
|
// catch overruns during record
|
||
|
|
if (dmabuf->count > dmabuf->dmasize) {
|
||
|
|
dmabuf->count = dmabuf->dmasize;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
}
|
||
|
|
avail = dmabuf->count;
|
||
|
|
avail -= (dmabuf->hwptr % dmabuf->fragsize);
|
||
|
|
if (avail < 0)
|
||
|
|
return (0);
|
||
|
|
return (avail);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int drain_dac(struct ali_state *state, int signals_allowed)
|
||
|
|
{
|
||
|
|
|
||
|
|
DECLARE_WAITQUEUE(wait, current);
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
unsigned long tmo;
|
||
|
|
int count;
|
||
|
|
if (!dmabuf->ready)
|
||
|
|
return 0;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
stop_dac(state);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
add_wait_queue(&dmabuf->wait, &wait);
|
||
|
|
for (;;) {
|
||
|
|
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
count = dmabuf->count;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
if (count <= 0)
|
||
|
|
break;
|
||
|
|
/*
|
||
|
|
* This will make sure that our LVI is correct, that our
|
||
|
|
* pointer is updated, and that the DAC is running. We
|
||
|
|
* have to force the setting of dmabuf->trigger to avoid
|
||
|
|
* any possible deadlocks.
|
||
|
|
*/
|
||
|
|
if (!dmabuf->enable) {
|
||
|
|
dmabuf->trigger = PCM_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 0);
|
||
|
|
}
|
||
|
|
if (signal_pending(current) && signals_allowed) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* It seems that we have to set the current state to
|
||
|
|
* TASK_INTERRUPTIBLE every time to make the process
|
||
|
|
* really go to sleep. This also has to be *after* the
|
||
|
|
* update_ptr() call because update_ptr is likely to
|
||
|
|
* do a wake_up() which will unset this before we ever
|
||
|
|
* try to sleep, resuling in a tight loop in this code
|
||
|
|
* instead of actually sleeping and waiting for an
|
||
|
|
* interrupt to wake us up!
|
||
|
|
*/
|
||
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
||
|
|
/*
|
||
|
|
* set the timeout to significantly longer than it *should*
|
||
|
|
* take for the DAC to drain the DMA buffer
|
||
|
|
*/
|
||
|
|
tmo = (count * HZ) / (dmabuf->rate);
|
||
|
|
if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
|
||
|
|
printk(KERN_ERR "ali_audio: drain_dac, dma timeout?\n");
|
||
|
|
count = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
set_current_state(TASK_RUNNING);
|
||
|
|
remove_wait_queue(&dmabuf->wait, &wait);
|
||
|
|
if (count > 0 && signal_pending(current) && signals_allowed)
|
||
|
|
return -ERESTARTSYS;
|
||
|
|
stop_dac(state);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int drain_spdifout(struct ali_state *state, int signals_allowed)
|
||
|
|
{
|
||
|
|
|
||
|
|
DECLARE_WAITQUEUE(wait, current);
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
unsigned long tmo;
|
||
|
|
int count;
|
||
|
|
if (!dmabuf->ready)
|
||
|
|
return 0;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
add_wait_queue(&dmabuf->wait, &wait);
|
||
|
|
for (;;) {
|
||
|
|
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
count = dmabuf->count;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
if (count <= 0)
|
||
|
|
break;
|
||
|
|
/*
|
||
|
|
* This will make sure that our LVI is correct, that our
|
||
|
|
* pointer is updated, and that the DAC is running. We
|
||
|
|
* have to force the setting of dmabuf->trigger to avoid
|
||
|
|
* any possible deadlocks.
|
||
|
|
*/
|
||
|
|
if (!dmabuf->enable) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 2);
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 3);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (signal_pending(current) && signals_allowed) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* It seems that we have to set the current state to
|
||
|
|
* TASK_INTERRUPTIBLE every time to make the process
|
||
|
|
* really go to sleep. This also has to be *after* the
|
||
|
|
* update_ptr() call because update_ptr is likely to
|
||
|
|
* do a wake_up() which will unset this before we ever
|
||
|
|
* try to sleep, resuling in a tight loop in this code
|
||
|
|
* instead of actually sleeping and waiting for an
|
||
|
|
* interrupt to wake us up!
|
||
|
|
*/
|
||
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
||
|
|
/*
|
||
|
|
* set the timeout to significantly longer than it *should*
|
||
|
|
* take for the DAC to drain the DMA buffer
|
||
|
|
*/
|
||
|
|
tmo = (count * HZ) / (dmabuf->rate);
|
||
|
|
if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
|
||
|
|
printk(KERN_ERR "ali_audio: drain_spdifout, dma timeout?\n");
|
||
|
|
count = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
set_current_state(TASK_RUNNING);
|
||
|
|
remove_wait_queue(&dmabuf->wait, &wait);
|
||
|
|
if (count > 0 && signal_pending(current) && signals_allowed)
|
||
|
|
return -ERESTARTSYS;
|
||
|
|
stop_spdifout(state);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ali_channel_interrupt(struct ali_card *card)
|
||
|
|
{
|
||
|
|
int i, count;
|
||
|
|
|
||
|
|
for (i = 0; i < NR_HW_CH; i++) {
|
||
|
|
struct ali_state *state = card->states[i];
|
||
|
|
struct ali_channel *c = NULL;
|
||
|
|
struct dmabuf *dmabuf;
|
||
|
|
unsigned long port = card->iobase;
|
||
|
|
u16 status;
|
||
|
|
if (!state)
|
||
|
|
continue;
|
||
|
|
if (!state->dmabuf.ready)
|
||
|
|
continue;
|
||
|
|
dmabuf = &state->dmabuf;
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
c = dmabuf->codec_spdifout_channel;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
c = dmabuf->controller_spdifout_channel;
|
||
|
|
} else {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING) {
|
||
|
|
c = dmabuf->write_channel;
|
||
|
|
} else if (dmabuf->enable & ADC_RUNNING) {
|
||
|
|
c = dmabuf->read_channel;
|
||
|
|
} else
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
port += c->port;
|
||
|
|
|
||
|
|
status = inw(port + OFF_SR);
|
||
|
|
|
||
|
|
if (status & DMA_INT_COMPLETE) {
|
||
|
|
/* only wake_up() waiters if this interrupt signals
|
||
|
|
* us being beyond a userfragsize of data open or
|
||
|
|
* available, and ali_update_ptr() does that for
|
||
|
|
* us
|
||
|
|
*/
|
||
|
|
ali_update_ptr(state);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (status & DMA_INT_LVI) {
|
||
|
|
ali_update_ptr(state);
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
count = dmabuf->dmasize - dmabuf->count;
|
||
|
|
else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else count = 0;
|
||
|
|
|
||
|
|
if (count > 0) {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
outl((1 << 1), state->card->iobase + ALI_DMACR);
|
||
|
|
else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
outl((1 << 3), state->card->iobase + ALI_DMACR);
|
||
|
|
else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
outl((1 << 7), state->card->iobase + ALI_DMACR);
|
||
|
|
} else {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
__stop_dac(state);
|
||
|
|
if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
__stop_adc(state);
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
dmabuf->enable = 0;
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
if (!(status & DMA_INT_DCH)) {
|
||
|
|
ali_update_ptr(state);
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
count = dmabuf->dmasize - dmabuf->count;
|
||
|
|
else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
count = dmabuf->count;
|
||
|
|
else
|
||
|
|
count = 0;
|
||
|
|
|
||
|
|
if (count > 0) {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
outl((1 << 1), state->card->iobase + ALI_DMACR);
|
||
|
|
else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
outl((1 << 3), state->card->iobase + ALI_DMACR);
|
||
|
|
else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
outl((1 << 7), state->card->iobase + ALI_DMACR);
|
||
|
|
} else {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
__stop_dac(state);
|
||
|
|
if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
__stop_adc(state);
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
|
||
|
|
__stop_spdifout(state);
|
||
|
|
dmabuf->enable = 0;
|
||
|
|
wake_up(&dmabuf->wait);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
outw(status & DMA_INT_MASK, port + OFF_SR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
||
|
|
{
|
||
|
|
struct ali_card *card = (struct ali_card *) dev_id;
|
||
|
|
u32 status;
|
||
|
|
u16 status2;
|
||
|
|
|
||
|
|
spin_lock(&card->lock);
|
||
|
|
status = inl(card->iobase + ALI_INTERRUPTSR);
|
||
|
|
if (!(status & INT_MASK)) {
|
||
|
|
spin_unlock(&card->lock);
|
||
|
|
return IRQ_NONE; /* not for us */
|
||
|
|
}
|
||
|
|
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (globel == 0) {
|
||
|
|
globel += 1;
|
||
|
|
status2 = inw(card->iobase + 0x76);
|
||
|
|
outw(status2 | 0x000c, card->iobase + 0x76);
|
||
|
|
} else {
|
||
|
|
if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
|
||
|
|
ali_channel_interrupt(card);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
|
||
|
|
ali_channel_interrupt(card);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* clear 'em */
|
||
|
|
outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
spin_unlock(&card->lock);
|
||
|
|
return IRQ_HANDLED;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* in this loop, dmabuf.count signifies the amount of data that is
|
||
|
|
waiting to be copied to the user's buffer. It is filled by the dma
|
||
|
|
machine and drained by this loop. */
|
||
|
|
|
||
|
|
static ssize_t ali_read(struct file *file, char __user *buffer,
|
||
|
|
size_t count, loff_t * ppos)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct ali_card *card = state ? state->card : NULL;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
ssize_t ret;
|
||
|
|
unsigned long flags;
|
||
|
|
unsigned int swptr;
|
||
|
|
int cnt;
|
||
|
|
DECLARE_WAITQUEUE(waita, current);
|
||
|
|
#ifdef DEBUG2
|
||
|
|
printk("ali_audio: ali_read called, count = %d\n", count);
|
||
|
|
#endif
|
||
|
|
if (dmabuf->mapped)
|
||
|
|
return -ENXIO;
|
||
|
|
if (dmabuf->enable & DAC_RUNNING)
|
||
|
|
return -ENODEV;
|
||
|
|
if (!dmabuf->read_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->read_channel = card->alloc_rec_pcm_channel(card);
|
||
|
|
if (!dmabuf->read_channel) {
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
|
||
|
|
return ret;
|
||
|
|
if (!access_ok(VERIFY_WRITE, buffer, count))
|
||
|
|
return -EFAULT;
|
||
|
|
ret = 0;
|
||
|
|
add_wait_queue(&dmabuf->wait, &waita);
|
||
|
|
while (count > 0) {
|
||
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
if (PM_SUSPENDED(card)) {
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
schedule();
|
||
|
|
if (signal_pending(current)) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EAGAIN;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
swptr = dmabuf->swptr;
|
||
|
|
cnt = ali_get_available_read_data(state);
|
||
|
|
// this is to make the copy_to_user simpler below
|
||
|
|
if (cnt > (dmabuf->dmasize - swptr))
|
||
|
|
cnt = dmabuf->dmasize - swptr;
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
if (cnt > count)
|
||
|
|
cnt = count;
|
||
|
|
/* Lop off the last two bits to force the code to always
|
||
|
|
* write in full samples. This keeps software that sets
|
||
|
|
* O_NONBLOCK but doesn't check the return value of the
|
||
|
|
* write call from getting things out of state where they
|
||
|
|
* think a full 4 byte sample was written when really only
|
||
|
|
* a portion was, resulting in odd sound and stereo
|
||
|
|
* hysteresis.
|
||
|
|
*/
|
||
|
|
cnt &= ~0x3;
|
||
|
|
if (cnt <= 0) {
|
||
|
|
unsigned long tmo;
|
||
|
|
/*
|
||
|
|
* Don't let us deadlock. The ADC won't start if
|
||
|
|
* dmabuf->trigger isn't set. A call to SETTRIGGER
|
||
|
|
* could have turned it off after we set it to on
|
||
|
|
* previously.
|
||
|
|
*/
|
||
|
|
dmabuf->trigger = PCM_ENABLE_INPUT;
|
||
|
|
/*
|
||
|
|
* This does three things. Updates LVI to be correct,
|
||
|
|
* makes sure the ADC is running, and updates the
|
||
|
|
* hwptr.
|
||
|
|
*/
|
||
|
|
ali_update_lvi(state, 1);
|
||
|
|
if (file->f_flags & O_NONBLOCK) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EAGAIN;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
/* Set the timeout to how long it would take to fill
|
||
|
|
* two of our buffers. If we haven't been woke up
|
||
|
|
* by then, then we know something is wrong.
|
||
|
|
*/
|
||
|
|
tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
|
||
|
|
|
||
|
|
/* There are two situations when sleep_on_timeout returns, one is when
|
||
|
|
the interrupt is serviced correctly and the process is waked up by
|
||
|
|
ISR ON TIME. Another is when timeout is expired, which means that
|
||
|
|
either interrupt is NOT serviced correctly (pending interrupt) or it
|
||
|
|
is TOO LATE for the process to be scheduled to run (scheduler latency)
|
||
|
|
which results in a (potential) buffer overrun. And worse, there is
|
||
|
|
NOTHING we can do to prevent it. */
|
||
|
|
if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
|
||
|
|
printk(KERN_ERR
|
||
|
|
"ali_audio: recording schedule timeout, "
|
||
|
|
"dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
|
||
|
|
dmabuf->dmasize, dmabuf->fragsize,
|
||
|
|
dmabuf->count, dmabuf->hwptr,
|
||
|
|
dmabuf->swptr);
|
||
|
|
/* a buffer overrun, we delay the recovery until next time the
|
||
|
|
while loop begin and we REALLY have space to record */
|
||
|
|
}
|
||
|
|
if (signal_pending(current)) {
|
||
|
|
ret = ret ? ret : -ERESTARTSYS;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EFAULT;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
swptr = (swptr + cnt) % dmabuf->dmasize;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
if (PM_SUSPENDED(card)) {
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
dmabuf->swptr = swptr;
|
||
|
|
dmabuf->count -= cnt;
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
count -= cnt;
|
||
|
|
buffer += cnt;
|
||
|
|
ret += cnt;
|
||
|
|
}
|
||
|
|
done:
|
||
|
|
ali_update_lvi(state, 1);
|
||
|
|
set_current_state(TASK_RUNNING);
|
||
|
|
remove_wait_queue(&dmabuf->wait, &waita);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
|
||
|
|
the soundcard. it is drained by the dma machine and filled by this loop. */
|
||
|
|
static ssize_t ali_write(struct file *file,
|
||
|
|
const char __user *buffer, size_t count, loff_t * ppos)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct ali_card *card = state ? state->card : NULL;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
ssize_t ret;
|
||
|
|
unsigned long flags;
|
||
|
|
unsigned int swptr = 0;
|
||
|
|
int cnt, x;
|
||
|
|
DECLARE_WAITQUEUE(waita, current);
|
||
|
|
#ifdef DEBUG2
|
||
|
|
printk("ali_audio: ali_write called, count = %d\n", count);
|
||
|
|
#endif
|
||
|
|
if (dmabuf->mapped)
|
||
|
|
return -ENXIO;
|
||
|
|
if (dmabuf->enable & ADC_RUNNING)
|
||
|
|
return -ENODEV;
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->codec_spdifout_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card);
|
||
|
|
if (!dmabuf->codec_spdifout_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->controller_spdifout_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card);
|
||
|
|
if (!dmabuf->controller_spdifout_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (!dmabuf->write_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->write_channel =
|
||
|
|
card->alloc_pcm_channel(card);
|
||
|
|
if (!dmabuf->write_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
|
||
|
|
return ret;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
|
||
|
|
return ret;
|
||
|
|
} else {
|
||
|
|
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!access_ok(VERIFY_READ, buffer, count))
|
||
|
|
return -EFAULT;
|
||
|
|
ret = 0;
|
||
|
|
add_wait_queue(&dmabuf->wait, &waita);
|
||
|
|
while (count > 0) {
|
||
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
if (PM_SUSPENDED(card)) {
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
schedule();
|
||
|
|
if (signal_pending(current)) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EAGAIN;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
swptr = dmabuf->swptr;
|
||
|
|
cnt = ali_get_free_write_space(state);
|
||
|
|
/* Bound the maximum size to how much we can copy to the
|
||
|
|
* dma buffer before we hit the end. If we have more to
|
||
|
|
* copy then it will get done in a second pass of this
|
||
|
|
* loop starting from the beginning of the buffer.
|
||
|
|
*/
|
||
|
|
if (cnt > (dmabuf->dmasize - swptr))
|
||
|
|
cnt = dmabuf->dmasize - swptr;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#ifdef DEBUG2
|
||
|
|
printk(KERN_INFO
|
||
|
|
"ali_audio: ali_write: %d bytes available space\n",
|
||
|
|
cnt);
|
||
|
|
#endif
|
||
|
|
if (cnt > count)
|
||
|
|
cnt = count;
|
||
|
|
/* Lop off the last two bits to force the code to always
|
||
|
|
* write in full samples. This keeps software that sets
|
||
|
|
* O_NONBLOCK but doesn't check the return value of the
|
||
|
|
* write call from getting things out of state where they
|
||
|
|
* think a full 4 byte sample was written when really only
|
||
|
|
* a portion was, resulting in odd sound and stereo
|
||
|
|
* hysteresis.
|
||
|
|
*/
|
||
|
|
cnt &= ~0x3;
|
||
|
|
if (cnt <= 0) {
|
||
|
|
unsigned long tmo;
|
||
|
|
// There is data waiting to be played
|
||
|
|
/*
|
||
|
|
* Force the trigger setting since we would
|
||
|
|
* deadlock with it set any other way
|
||
|
|
*/
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 2);
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 3);
|
||
|
|
} else {
|
||
|
|
|
||
|
|
dmabuf->trigger = PCM_ENABLE_OUTPUT;
|
||
|
|
ali_update_lvi(state, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (file->f_flags & O_NONBLOCK) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EAGAIN;
|
||
|
|
goto ret;
|
||
|
|
}
|
||
|
|
/* Not strictly correct but works */
|
||
|
|
tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
|
||
|
|
/* There are two situations when sleep_on_timeout returns, one is when
|
||
|
|
the interrupt is serviced correctly and the process is waked up by
|
||
|
|
ISR ON TIME. Another is when timeout is expired, which means that
|
||
|
|
either interrupt is NOT serviced correctly (pending interrupt) or it
|
||
|
|
is TOO LATE for the process to be scheduled to run (scheduler latency)
|
||
|
|
which results in a (potential) buffer underrun. And worse, there is
|
||
|
|
NOTHING we can do to prevent it. */
|
||
|
|
|
||
|
|
/* FIXME - do timeout handling here !! */
|
||
|
|
schedule_timeout(tmo >= 2 ? tmo : 2);
|
||
|
|
|
||
|
|
if (signal_pending(current)) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -ERESTARTSYS;
|
||
|
|
goto ret;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
|
||
|
|
if (!ret)
|
||
|
|
ret = -EFAULT;
|
||
|
|
goto ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
swptr = (swptr + cnt) % dmabuf->dmasize;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
if (PM_SUSPENDED(card)) {
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
dmabuf->swptr = swptr;
|
||
|
|
dmabuf->count += cnt;
|
||
|
|
count -= cnt;
|
||
|
|
buffer += cnt;
|
||
|
|
ret += cnt;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
if (swptr % dmabuf->fragsize) {
|
||
|
|
x = dmabuf->fragsize - (swptr % dmabuf->fragsize);
|
||
|
|
memset(dmabuf->rawbuf + swptr, '\0', x);
|
||
|
|
}
|
||
|
|
ret:
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
ali_update_lvi(state, 2);
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
ali_update_lvi(state, 3);
|
||
|
|
} else {
|
||
|
|
ali_update_lvi(state, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
set_current_state(TASK_RUNNING);
|
||
|
|
remove_wait_queue(&dmabuf->wait, &waita);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* No kernel lock - we have our own spinlock */
|
||
|
|
static unsigned int ali_poll(struct file *file, struct poll_table_struct
|
||
|
|
*wait)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
unsigned int mask = 0;
|
||
|
|
if (!dmabuf->ready)
|
||
|
|
return 0;
|
||
|
|
poll_wait(file, &dmabuf->wait, wait);
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
if (file->f_mode & FMODE_READ && dmabuf->enable & ADC_RUNNING) {
|
||
|
|
if (dmabuf->count >= (signed) dmabuf->fragsize)
|
||
|
|
mask |= POLLIN | POLLRDNORM;
|
||
|
|
}
|
||
|
|
if (file->f_mode & FMODE_WRITE && (dmabuf->enable & (DAC_RUNNING|CODEC_SPDIFOUT_RUNNING|CONTROLLER_SPDIFOUT_RUNNING))) {
|
||
|
|
if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize)
|
||
|
|
mask |= POLLOUT | POLLWRNORM;
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
return mask;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ali_mmap(struct file *file, struct vm_area_struct *vma)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
int ret = -EINVAL;
|
||
|
|
unsigned long size;
|
||
|
|
lock_kernel();
|
||
|
|
if (vma->vm_flags & VM_WRITE) {
|
||
|
|
if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) {
|
||
|
|
ret = -EBUSY;
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (vma->vm_flags & VM_READ) {
|
||
|
|
if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) {
|
||
|
|
ret = -EBUSY;
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((ret = prog_dmabuf(state, 0)) != 0)
|
||
|
|
goto out;
|
||
|
|
ret = -EINVAL;
|
||
|
|
if (vma->vm_pgoff != 0)
|
||
|
|
goto out;
|
||
|
|
size = vma->vm_end - vma->vm_start;
|
||
|
|
if (size > (PAGE_SIZE << dmabuf->buforder))
|
||
|
|
goto out;
|
||
|
|
ret = -EAGAIN;
|
||
|
|
if (remap_pfn_range(vma, vma->vm_start,
|
||
|
|
virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
|
||
|
|
size, vma->vm_page_prot))
|
||
|
|
goto out;
|
||
|
|
dmabuf->mapped = 1;
|
||
|
|
dmabuf->trigger = 0;
|
||
|
|
ret = 0;
|
||
|
|
out:
|
||
|
|
unlock_kernel();
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct ali_channel *c = NULL;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
audio_buf_info abinfo;
|
||
|
|
count_info cinfo;
|
||
|
|
unsigned int i_scr;
|
||
|
|
int val = 0, ret;
|
||
|
|
struct ac97_codec *codec = state->card->ac97_codec[0];
|
||
|
|
void __user *argp = (void __user *)arg;
|
||
|
|
int __user *p = argp;
|
||
|
|
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("ali_audio: ali_ioctl, arg=0x%x, cmd=",
|
||
|
|
arg ? *p : 0);
|
||
|
|
#endif
|
||
|
|
switch (cmd) {
|
||
|
|
case OSS_GETVERSION:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("OSS_GETVERSION\n");
|
||
|
|
#endif
|
||
|
|
return put_user(SOUND_VERSION, p);
|
||
|
|
case SNDCTL_DSP_RESET:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_RESET\n");
|
||
|
|
#endif
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
if (dmabuf->enable == DAC_RUNNING) {
|
||
|
|
c = dmabuf->write_channel;
|
||
|
|
__stop_dac(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable == ADC_RUNNING) {
|
||
|
|
c = dmabuf->read_channel;
|
||
|
|
__stop_adc(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
c = dmabuf->codec_spdifout_channel;
|
||
|
|
__stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
|
||
|
|
c = dmabuf->controller_spdifout_channel;
|
||
|
|
__stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (c != NULL) {
|
||
|
|
outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */
|
||
|
|
outl(virt_to_bus(&c->sg[0]),
|
||
|
|
state->card->iobase + c->port + OFF_BDBAR);
|
||
|
|
outb(0, state->card->iobase + c->port + OFF_CIV);
|
||
|
|
outb(0, state->card->iobase + c->port + OFF_LVI);
|
||
|
|
}
|
||
|
|
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
synchronize_irq(state->card->pci_dev->irq);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr = 0;
|
||
|
|
dmabuf->count = dmabuf->total_bytes = 0;
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_SYNC:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SYNC\n");
|
||
|
|
#endif
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING
|
||
|
|
|| file->f_flags & O_NONBLOCK)
|
||
|
|
return 0;
|
||
|
|
if ((val = drain_spdifout(state, 1)))
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->enable !=
|
||
|
|
CONTROLLER_SPDIFOUT_RUNNING
|
||
|
|
|| file->f_flags & O_NONBLOCK)
|
||
|
|
return 0;
|
||
|
|
if ((val = drain_spdifout(state, 1)))
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (dmabuf->enable != DAC_RUNNING
|
||
|
|
|| file->f_flags & O_NONBLOCK)
|
||
|
|
return 0;
|
||
|
|
if ((val = drain_dac(state, 1)))
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
dmabuf->total_bytes = 0;
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_SPEED: /* set smaple rate */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SPEED\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
if (val >= 0) {
|
||
|
|
if (file->f_mode & FMODE_WRITE) {
|
||
|
|
if ((state->card->ac97_status & SPDIF_ON)) { /* S/PDIF Enabled */
|
||
|
|
/* RELTEK ALC650 only support 48000, need to check that */
|
||
|
|
if (ali_valid_spdif_rate(codec, val)) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
ali_set_spdif_output(state, -1, 0);
|
||
|
|
stop_spdifout(state);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
/* I add test codec independent spdif out */
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_set_codecspdifout_rate(state, val); // I modified
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
/* Set S/PDIF transmitter rate. */
|
||
|
|
i_scr = inl(state->card->iobase + ALI_SCR);
|
||
|
|
if ((i_scr & 0x00300000) == 0x00100000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr&0x00300000) == 0x00200000)
|
||
|
|
{
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr & 0x00300000) == 0x00300000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(state->card->ac97_status & SPDIF_ON)) {
|
||
|
|
val = dmabuf->rate;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0)
|
||
|
|
{
|
||
|
|
stop_spdifout(state);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_set_spdifout_rate(state, controller_independent_spdif_locked);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
} else {
|
||
|
|
/* Set DAC rate */
|
||
|
|
ali_set_spdif_output(state, -1, 0);
|
||
|
|
stop_dac(state);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_set_dac_rate(state, val);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
/* Set S/PDIF transmitter rate. */
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val);
|
||
|
|
if (!(state->card->ac97_status & SPDIF_ON))
|
||
|
|
{
|
||
|
|
val = dmabuf->rate;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else { /* Not a valid rate for S/PDIF, ignore it */
|
||
|
|
val = dmabuf->rate;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
stop_dac(state);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_set_dac_rate(state, val);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (file->f_mode & FMODE_READ) {
|
||
|
|
stop_adc(state);
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_set_adc_rate(state, val);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return put_user(dmabuf->rate, p);
|
||
|
|
case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_STEREO\n");
|
||
|
|
#endif
|
||
|
|
if (dmabuf->enable & DAC_RUNNING) {
|
||
|
|
stop_dac(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & ADC_RUNNING) {
|
||
|
|
stop_adc(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
return put_user(1, p);
|
||
|
|
case SNDCTL_DSP_GETBLKSIZE:
|
||
|
|
if (file->f_mode & FMODE_WRITE) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 2)))
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 3)))
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 0)))
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (file->f_mode & FMODE_READ) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 1)))
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize);
|
||
|
|
#endif
|
||
|
|
return put_user(dmabuf->userfragsize, p);
|
||
|
|
case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETFMTS\n");
|
||
|
|
#endif
|
||
|
|
return put_user(AFMT_S16_LE, p);
|
||
|
|
case SNDCTL_DSP_SETFMT: /* Select sample format */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SETFMT\n");
|
||
|
|
#endif
|
||
|
|
return put_user(AFMT_S16_LE, p);
|
||
|
|
case SNDCTL_DSP_CHANNELS: // add support 4,6 channel
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_CHANNELS\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
if (val > 0) {
|
||
|
|
if (dmabuf->enable & DAC_RUNNING) {
|
||
|
|
stop_dac(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & ADC_RUNNING) {
|
||
|
|
stop_adc(state);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return put_user(state->card->channels, p);
|
||
|
|
}
|
||
|
|
|
||
|
|
i_scr = inl(state->card->iobase + ALI_SCR);
|
||
|
|
/* Current # of channels enabled */
|
||
|
|
if (i_scr & 0x00000100)
|
||
|
|
ret = 4;
|
||
|
|
else if (i_scr & 0x00000200)
|
||
|
|
ret = 6;
|
||
|
|
else
|
||
|
|
ret = 2;
|
||
|
|
switch (val) {
|
||
|
|
case 2: /* 2 channels is always supported */
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR));
|
||
|
|
} else
|
||
|
|
outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR));
|
||
|
|
/* Do we need to change mixer settings???? */
|
||
|
|
break;
|
||
|
|
case 4: /* Supported on some chipsets, better check first */
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR));
|
||
|
|
} else
|
||
|
|
outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR));
|
||
|
|
break;
|
||
|
|
case 6: /* Supported on some chipsets, better check first */
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR));
|
||
|
|
} else
|
||
|
|
outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR));
|
||
|
|
break;
|
||
|
|
default: /* nothing else is ever supported by the chipset */
|
||
|
|
val = ret;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return put_user(val, p);
|
||
|
|
case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */
|
||
|
|
/* we update the swptr to the end of the last sg segment then return */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_POST\n");
|
||
|
|
#endif
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING))
|
||
|
|
return 0;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING))
|
||
|
|
return 0;
|
||
|
|
} else {
|
||
|
|
if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING))
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((dmabuf->swptr % dmabuf->fragsize) != 0) {
|
||
|
|
val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize);
|
||
|
|
dmabuf->swptr += val;
|
||
|
|
dmabuf->count += val;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_SUBDIVIDE:
|
||
|
|
if (dmabuf->subdivision)
|
||
|
|
return -EINVAL;
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
if (val != 1 && val != 2 && val != 4)
|
||
|
|
return -EINVAL;
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SUBDIVIDE %d\n", val);
|
||
|
|
#endif
|
||
|
|
dmabuf->subdivision = val;
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_SETFRAGMENT:
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
dmabuf->ossfragsize = 1 << (val & 0xffff);
|
||
|
|
dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
|
||
|
|
if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags)
|
||
|
|
return -EINVAL;
|
||
|
|
/*
|
||
|
|
* Bound the frag size into our allowed range of 256 - 4096
|
||
|
|
*/
|
||
|
|
if (dmabuf->ossfragsize < 256)
|
||
|
|
dmabuf->ossfragsize = 256;
|
||
|
|
else if (dmabuf->ossfragsize > 4096)
|
||
|
|
dmabuf->ossfragsize = 4096;
|
||
|
|
/*
|
||
|
|
* The numfrags could be something reasonable, or it could
|
||
|
|
* be 0xffff meaning "Give me as much as possible". So,
|
||
|
|
* we check the numfrags * fragsize doesn't exceed our
|
||
|
|
* 64k buffer limit, nor is it less than our 8k minimum.
|
||
|
|
* If it fails either one of these checks, then adjust the
|
||
|
|
* number of fragments, not the size of them. It's OK if
|
||
|
|
* our number of fragments doesn't equal 32 or anything
|
||
|
|
* like our hardware based number now since we are using
|
||
|
|
* a different frag count for the hardware. Before we get
|
||
|
|
* into this though, bound the maxfrags to avoid overflow
|
||
|
|
* issues. A reasonable bound would be 64k / 256 since our
|
||
|
|
* maximum buffer size is 64k and our minimum frag size is
|
||
|
|
* 256. On the other end, our minimum buffer size is 8k and
|
||
|
|
* our maximum frag size is 4k, so the lower bound should
|
||
|
|
* be 2.
|
||
|
|
*/
|
||
|
|
if (dmabuf->ossmaxfrags > 256)
|
||
|
|
dmabuf->ossmaxfrags = 256;
|
||
|
|
else if (dmabuf->ossmaxfrags < 2)
|
||
|
|
dmabuf->ossmaxfrags = 2;
|
||
|
|
val = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
|
||
|
|
while (val < 8192) {
|
||
|
|
val <<= 1;
|
||
|
|
dmabuf->ossmaxfrags <<= 1;
|
||
|
|
}
|
||
|
|
while (val > 65536) {
|
||
|
|
val >>= 1;
|
||
|
|
dmabuf->ossmaxfrags >>= 1;
|
||
|
|
}
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val,
|
||
|
|
dmabuf->ossfragsize, dmabuf->ossmaxfrags);
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_GETOSPACE:
|
||
|
|
if (!(file->f_mode & FMODE_WRITE))
|
||
|
|
return -EINVAL;
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
abinfo.fragsize = dmabuf->userfragsize;
|
||
|
|
abinfo.fragstotal = dmabuf->userfrags;
|
||
|
|
if (dmabuf->mapped)
|
||
|
|
abinfo.bytes = dmabuf->dmasize;
|
||
|
|
else
|
||
|
|
abinfo.bytes = ali_get_free_write_space(state);
|
||
|
|
abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#if defined(DEBUG) || defined(DEBUG_MMAP)
|
||
|
|
printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n",
|
||
|
|
abinfo.bytes, abinfo.fragsize, abinfo.fragments,
|
||
|
|
abinfo.fragstotal);
|
||
|
|
#endif
|
||
|
|
return copy_to_user(argp, &abinfo,
|
||
|
|
sizeof(abinfo)) ? -EFAULT : 0;
|
||
|
|
case SNDCTL_DSP_GETOPTR:
|
||
|
|
if (!(file->f_mode & FMODE_WRITE))
|
||
|
|
return -EINVAL;
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
|
||
|
|
return val;
|
||
|
|
} else {
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
val = ali_get_free_write_space(state);
|
||
|
|
cinfo.bytes = dmabuf->total_bytes;
|
||
|
|
cinfo.ptr = dmabuf->hwptr;
|
||
|
|
cinfo.blocks = val / dmabuf->userfragsize;
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
|
||
|
|
dmabuf->count += val;
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 2);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
|
||
|
|
dmabuf->count += val;
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 3);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
|
||
|
|
dmabuf->count += val;
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#if defined(DEBUG) || defined(DEBUG_MMAP)
|
||
|
|
printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes,
|
||
|
|
cinfo.blocks, cinfo.ptr, dmabuf->count);
|
||
|
|
#endif
|
||
|
|
return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0;
|
||
|
|
case SNDCTL_DSP_GETISPACE:
|
||
|
|
if (!(file->f_mode & FMODE_READ))
|
||
|
|
return -EINVAL;
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
|
||
|
|
return val;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
abinfo.bytes = ali_get_available_read_data(state);
|
||
|
|
abinfo.fragsize = dmabuf->userfragsize;
|
||
|
|
abinfo.fragstotal = dmabuf->userfrags;
|
||
|
|
abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#if defined(DEBUG) || defined(DEBUG_MMAP)
|
||
|
|
printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n",
|
||
|
|
abinfo.bytes, abinfo.fragsize, abinfo.fragments,
|
||
|
|
abinfo.fragstotal);
|
||
|
|
#endif
|
||
|
|
return copy_to_user(argp, &abinfo,
|
||
|
|
sizeof(abinfo)) ? -EFAULT : 0;
|
||
|
|
case SNDCTL_DSP_GETIPTR:
|
||
|
|
if (!(file->f_mode & FMODE_READ))
|
||
|
|
return -EINVAL;
|
||
|
|
if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
|
||
|
|
return val;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
val = ali_get_available_read_data(state);
|
||
|
|
cinfo.bytes = dmabuf->total_bytes;
|
||
|
|
cinfo.blocks = val / dmabuf->userfragsize;
|
||
|
|
cinfo.ptr = dmabuf->hwptr;
|
||
|
|
if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
|
||
|
|
dmabuf->count -= val;
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 1);
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#if defined(DEBUG) || defined(DEBUG_MMAP)
|
||
|
|
printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes,
|
||
|
|
cinfo.blocks, cinfo.ptr, dmabuf->count);
|
||
|
|
#endif
|
||
|
|
return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0;
|
||
|
|
case SNDCTL_DSP_NONBLOCK:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_NONBLOCK\n");
|
||
|
|
#endif
|
||
|
|
file->f_flags |= O_NONBLOCK;
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_GETCAPS:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETCAPS\n");
|
||
|
|
#endif
|
||
|
|
return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
|
||
|
|
DSP_CAP_MMAP | DSP_CAP_BIND, p);
|
||
|
|
case SNDCTL_DSP_GETTRIGGER:
|
||
|
|
val = 0;
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger);
|
||
|
|
#endif
|
||
|
|
return put_user(dmabuf->trigger, p);
|
||
|
|
case SNDCTL_DSP_SETTRIGGER:
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
#if defined(DEBUG) || defined(DEBUG_MMAP)
|
||
|
|
printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val);
|
||
|
|
#endif
|
||
|
|
if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) {
|
||
|
|
stop_adc(state);
|
||
|
|
}
|
||
|
|
if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) {
|
||
|
|
stop_dac(state);
|
||
|
|
}
|
||
|
|
if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
|
||
|
|
stop_spdifout(state);
|
||
|
|
}
|
||
|
|
dmabuf->trigger = val;
|
||
|
|
if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) {
|
||
|
|
if (!dmabuf->write_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->write_channel = state->card->alloc_pcm_channel(state->card);
|
||
|
|
if (!dmabuf->write_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
|
||
|
|
return ret;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
dmabuf->count = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
dmabuf->count = ali_get_free_write_space(state);
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 0);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock,
|
||
|
|
flags);
|
||
|
|
} else
|
||
|
|
start_dac(state);
|
||
|
|
}
|
||
|
|
if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) {
|
||
|
|
if (!dmabuf->codec_spdifout_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card);
|
||
|
|
if (!dmabuf->codec_spdifout_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
|
||
|
|
return ret;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
dmabuf->count = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
dmabuf->count = ali_get_free_write_space(state);
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 2);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock,
|
||
|
|
flags);
|
||
|
|
} else
|
||
|
|
start_spdifout(state);
|
||
|
|
}
|
||
|
|
if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) {
|
||
|
|
if (!dmabuf->controller_spdifout_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card);
|
||
|
|
if (!dmabuf->controller_spdifout_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
|
||
|
|
return ret;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
dmabuf->count = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
dmabuf->count = ali_get_free_write_space(state);
|
||
|
|
dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
|
||
|
|
__ali_update_lvi(state, 3);
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
} else
|
||
|
|
start_spdifout(state);
|
||
|
|
}
|
||
|
|
if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) {
|
||
|
|
if (!dmabuf->read_channel) {
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card);
|
||
|
|
if (!dmabuf->read_channel)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
|
||
|
|
return ret;
|
||
|
|
if (dmabuf->mapped) {
|
||
|
|
spin_lock_irqsave(&state->card->lock,
|
||
|
|
flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
dmabuf->swptr = dmabuf->hwptr;
|
||
|
|
dmabuf->count = 0;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
}
|
||
|
|
ali_update_lvi(state, 1);
|
||
|
|
start_adc(state);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
case SNDCTL_DSP_SETDUPLEX:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SETDUPLEX\n");
|
||
|
|
#endif
|
||
|
|
return -EINVAL;
|
||
|
|
case SNDCTL_DSP_GETODELAY:
|
||
|
|
if (!(file->f_mode & FMODE_WRITE))
|
||
|
|
return -EINVAL;
|
||
|
|
spin_lock_irqsave(&state->card->lock, flags);
|
||
|
|
ali_update_ptr(state);
|
||
|
|
val = dmabuf->count;
|
||
|
|
spin_unlock_irqrestore(&state->card->lock, flags);
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count);
|
||
|
|
#endif
|
||
|
|
return put_user(val, p);
|
||
|
|
case SOUND_PCM_READ_RATE:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate);
|
||
|
|
#endif
|
||
|
|
return put_user(dmabuf->rate, p);
|
||
|
|
case SOUND_PCM_READ_CHANNELS:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SOUND_PCM_READ_CHANNELS\n");
|
||
|
|
#endif
|
||
|
|
return put_user(2, p);
|
||
|
|
case SOUND_PCM_READ_BITS:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SOUND_PCM_READ_BITS\n");
|
||
|
|
#endif
|
||
|
|
return put_user(AFMT_S16_LE, p);
|
||
|
|
case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_SETSPDIF\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
/* Check to make sure the codec supports S/PDIF transmitter */
|
||
|
|
if ((state->card->ac97_features & 4)) {
|
||
|
|
/* mask out the transmitter speed bits so the user can't set them */
|
||
|
|
val &= ~0x3000;
|
||
|
|
/* Add the current transmitter speed bits to the passed value */
|
||
|
|
ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
|
||
|
|
val |= (ret & 0x3000);
|
||
|
|
ali_ac97_set(codec, AC97_SPDIF_CONTROL, val);
|
||
|
|
if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) {
|
||
|
|
printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val);
|
||
|
|
return -EFAULT;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#ifdef DEBUG
|
||
|
|
else
|
||
|
|
printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
|
||
|
|
#endif
|
||
|
|
return put_user(val, p);
|
||
|
|
case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETSPDIF\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
/* Check to make sure the codec supports S/PDIF transmitter */
|
||
|
|
if (!(state->card->ac97_features & 4)) {
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
|
||
|
|
#endif
|
||
|
|
val = 0;
|
||
|
|
} else {
|
||
|
|
val = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return put_user(val, p);
|
||
|
|
//end add support spdif out
|
||
|
|
//add support 4,6 channel
|
||
|
|
case SNDCTL_DSP_GETCHANNELMASK:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_GETCHANNELMASK\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
/* Based on AC'97 DAC support, not ICH hardware */
|
||
|
|
val = DSP_BIND_FRONT;
|
||
|
|
if (state->card->ac97_features & 0x0004)
|
||
|
|
val |= DSP_BIND_SPDIF;
|
||
|
|
if (state->card->ac97_features & 0x0080)
|
||
|
|
val |= DSP_BIND_SURR;
|
||
|
|
if (state->card->ac97_features & 0x0140)
|
||
|
|
val |= DSP_BIND_CENTER_LFE;
|
||
|
|
return put_user(val, p);
|
||
|
|
case SNDCTL_DSP_BIND_CHANNEL:
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("SNDCTL_DSP_BIND_CHANNEL\n");
|
||
|
|
#endif
|
||
|
|
if (get_user(val, p))
|
||
|
|
return -EFAULT;
|
||
|
|
if (val == DSP_BIND_QUERY) {
|
||
|
|
val = DSP_BIND_FRONT; /* Always report this as being enabled */
|
||
|
|
if (state->card->ac97_status & SPDIF_ON)
|
||
|
|
val |= DSP_BIND_SPDIF;
|
||
|
|
else {
|
||
|
|
if (state->card->ac97_status & SURR_ON)
|
||
|
|
val |= DSP_BIND_SURR;
|
||
|
|
if (state->card->
|
||
|
|
ac97_status & CENTER_LFE_ON)
|
||
|
|
val |= DSP_BIND_CENTER_LFE;
|
||
|
|
}
|
||
|
|
} else { /* Not a query, set it */
|
||
|
|
if (!(file->f_mode & FMODE_WRITE))
|
||
|
|
return -EINVAL;
|
||
|
|
if (dmabuf->enable == DAC_RUNNING) {
|
||
|
|
stop_dac(state);
|
||
|
|
}
|
||
|
|
if (val & DSP_BIND_SPDIF) { /* Turn on SPDIF */
|
||
|
|
/* Ok, this should probably define what slots
|
||
|
|
* to use. For now, we'll only set it to the
|
||
|
|
* defaults:
|
||
|
|
*
|
||
|
|
* non multichannel codec maps to slots 3&4
|
||
|
|
* 2 channel codec maps to slots 7&8
|
||
|
|
* 4 channel codec maps to slots 6&9
|
||
|
|
* 6 channel codec maps to slots 10&11
|
||
|
|
*
|
||
|
|
* there should be some way for the app to
|
||
|
|
* select the slot assignment.
|
||
|
|
*/
|
||
|
|
i_scr = inl(state->card->iobase + ALI_SCR);
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
|
||
|
|
if ((i_scr & 0x00300000) == 0x00100000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr & 0x00300000) == 0x00200000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr & 0x00300000) == 0x00300000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else { /* codec spdif out (pcm out share ) */
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate); //I do not modify
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(state->card->ac97_status & SPDIF_ON))
|
||
|
|
val &= ~DSP_BIND_SPDIF;
|
||
|
|
} else {
|
||
|
|
int mask;
|
||
|
|
int channels;
|
||
|
|
/* Turn off S/PDIF if it was on */
|
||
|
|
if (state->card->ac97_status & SPDIF_ON)
|
||
|
|
ali_set_spdif_output(state, -1, 0);
|
||
|
|
mask =
|
||
|
|
val & (DSP_BIND_FRONT | DSP_BIND_SURR |
|
||
|
|
DSP_BIND_CENTER_LFE);
|
||
|
|
switch (mask) {
|
||
|
|
case DSP_BIND_FRONT:
|
||
|
|
channels = 2;
|
||
|
|
break;
|
||
|
|
case DSP_BIND_FRONT | DSP_BIND_SURR:
|
||
|
|
channels = 4;
|
||
|
|
break;
|
||
|
|
case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE:
|
||
|
|
channels = 6;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
val = DSP_BIND_FRONT;
|
||
|
|
channels = 2;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
ali_set_dac_channels(state, channels);
|
||
|
|
/* check that they really got turned on */
|
||
|
|
if (!state->card->ac97_status & SURR_ON)
|
||
|
|
val &= ~DSP_BIND_SURR;
|
||
|
|
if (!state->card->
|
||
|
|
ac97_status & CENTER_LFE_ON)
|
||
|
|
val &= ~DSP_BIND_CENTER_LFE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return put_user(val, p);
|
||
|
|
case SNDCTL_DSP_MAPINBUF:
|
||
|
|
case SNDCTL_DSP_MAPOUTBUF:
|
||
|
|
case SNDCTL_DSP_SETSYNCRO:
|
||
|
|
case SOUND_PCM_WRITE_FILTER:
|
||
|
|
case SOUND_PCM_READ_FILTER:
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ali_open(struct inode *inode, struct file *file)
|
||
|
|
{
|
||
|
|
int i = 0;
|
||
|
|
struct ali_card *card = devs;
|
||
|
|
struct ali_state *state = NULL;
|
||
|
|
struct dmabuf *dmabuf = NULL;
|
||
|
|
unsigned int i_scr;
|
||
|
|
|
||
|
|
/* find an available virtual channel (instance of /dev/dsp) */
|
||
|
|
|
||
|
|
while (card != NULL) {
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If we are initializing and then fail, card could go
|
||
|
|
* away unuexpectedly while we are in the for() loop.
|
||
|
|
* So, check for card on each iteration before we check
|
||
|
|
* for card->initializing to avoid a possible oops.
|
||
|
|
* This usually only matters for times when the driver is
|
||
|
|
* autoloaded by kmod.
|
||
|
|
*/
|
||
|
|
for (i = 0; i < 50 && card && card->initializing; i++) {
|
||
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
||
|
|
schedule_timeout(HZ / 20);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) {
|
||
|
|
if (card->states[i] == NULL) {
|
||
|
|
state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL);
|
||
|
|
if (state == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
memset(state, 0, sizeof(struct ali_state));
|
||
|
|
dmabuf = &state->dmabuf;
|
||
|
|
goto found_virt;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
card = card->next;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* no more virtual channel avaiable */
|
||
|
|
if (!state)
|
||
|
|
return -ENODEV;
|
||
|
|
found_virt:
|
||
|
|
/* initialize the virtual channel */
|
||
|
|
|
||
|
|
state->virt = i;
|
||
|
|
state->card = card;
|
||
|
|
state->magic = ALI5455_STATE_MAGIC;
|
||
|
|
init_waitqueue_head(&dmabuf->wait);
|
||
|
|
init_MUTEX(&state->open_sem);
|
||
|
|
file->private_data = state;
|
||
|
|
dmabuf->trigger = 0;
|
||
|
|
/* allocate hardware channels */
|
||
|
|
if (file->f_mode & FMODE_READ) {
|
||
|
|
if ((dmabuf->read_channel =
|
||
|
|
card->alloc_rec_pcm_channel(card)) == NULL) {
|
||
|
|
kfree(card->states[i]);
|
||
|
|
card->states[i] = NULL;
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
dmabuf->trigger |= PCM_ENABLE_INPUT;
|
||
|
|
ali_set_adc_rate(state, 8000);
|
||
|
|
}
|
||
|
|
if (file->f_mode & FMODE_WRITE) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) {
|
||
|
|
kfree(card->states[i]);
|
||
|
|
card->states[i] = NULL;
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_set_codecspdifout_rate(state, codec_independent_spdif_locked); //It must add
|
||
|
|
i_scr = inl(state->card->iobase + ALI_SCR);
|
||
|
|
if ((i_scr & 0x00300000) == 0x00100000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr & 0x00300000) == 0x00200000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((i_scr & 0x00300000) == 0x00300000) {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) {
|
||
|
|
kfree(card->states[i]);
|
||
|
|
card->states[i] = NULL;
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
|
||
|
|
ali_set_spdifout_rate(state, controller_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) {
|
||
|
|
kfree(card->states[i]);
|
||
|
|
card->states[i] = NULL;
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
/* Initialize to 8kHz? What if we don't support 8kHz? */
|
||
|
|
/* Let's change this to check for S/PDIF stuff */
|
||
|
|
|
||
|
|
dmabuf->trigger |= PCM_ENABLE_OUTPUT;
|
||
|
|
if (codec_pcmout_share_spdif_locked) {
|
||
|
|
ali_set_dac_rate(state, codec_pcmout_share_spdif_locked);
|
||
|
|
ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked);
|
||
|
|
} else {
|
||
|
|
ali_set_dac_rate(state, 8000);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
|
||
|
|
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
|
||
|
|
/dev/dspW will accept 16-bits sample, but we don't support those so we
|
||
|
|
set it immediately to stereo and 16bit, which is all we do support */
|
||
|
|
dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO;
|
||
|
|
dmabuf->ossfragsize = 0;
|
||
|
|
dmabuf->ossmaxfrags = 0;
|
||
|
|
dmabuf->subdivision = 0;
|
||
|
|
state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
|
||
|
|
outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
|
||
|
|
outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
return nonseekable_open(inode, file);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ali_release(struct inode *inode, struct file *file)
|
||
|
|
{
|
||
|
|
struct ali_state *state = (struct ali_state *) file->private_data;
|
||
|
|
struct ali_card *card = state->card;
|
||
|
|
struct dmabuf *dmabuf = &state->dmabuf;
|
||
|
|
unsigned long flags;
|
||
|
|
lock_kernel();
|
||
|
|
|
||
|
|
/* stop DMA state machine and free DMA buffers/channels */
|
||
|
|
if (dmabuf->trigger & PCM_ENABLE_OUTPUT)
|
||
|
|
drain_dac(state, 0);
|
||
|
|
|
||
|
|
if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)
|
||
|
|
drain_spdifout(state, 0);
|
||
|
|
|
||
|
|
if (dmabuf->trigger & PCM_ENABLE_INPUT)
|
||
|
|
stop_adc(state);
|
||
|
|
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
dealloc_dmabuf(state);
|
||
|
|
if (file->f_mode & FMODE_WRITE) {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num);
|
||
|
|
} else {
|
||
|
|
if (controller_independent_spdif_locked > 0)
|
||
|
|
state->card->free_pcm_channel(state->card,
|
||
|
|
dmabuf->controller_spdifout_channel->num);
|
||
|
|
else state->card->free_pcm_channel(state->card,
|
||
|
|
dmabuf->write_channel->num);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (file->f_mode & FMODE_READ)
|
||
|
|
state->card->free_pcm_channel(state->card, dmabuf->read_channel->num);
|
||
|
|
|
||
|
|
state->card->states[state->virt] = NULL;
|
||
|
|
kfree(state);
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
unlock_kernel();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static /*const */ struct file_operations ali_audio_fops = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.llseek = no_llseek,
|
||
|
|
.read = ali_read,
|
||
|
|
.write = ali_write,
|
||
|
|
.poll = ali_poll,
|
||
|
|
.ioctl = ali_ioctl,
|
||
|
|
.mmap = ali_mmap,
|
||
|
|
.open = ali_open,
|
||
|
|
.release = ali_release,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Read AC97 codec registers */
|
||
|
|
static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg)
|
||
|
|
{
|
||
|
|
struct ali_card *card = dev->private_data;
|
||
|
|
int count1 = 100;
|
||
|
|
char val;
|
||
|
|
unsigned short int data = 0, count, addr1, addr2 = 0;
|
||
|
|
|
||
|
|
spin_lock(&card->ac97_lock);
|
||
|
|
while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
addr1 = reg;
|
||
|
|
reg |= 0x0080;
|
||
|
|
for (count = 0; count < 0x7f; count++) {
|
||
|
|
val = inb(card->iobase + ALI_CSPSR);
|
||
|
|
if (val & 0x08)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (count == 0x7f)
|
||
|
|
{
|
||
|
|
spin_unlock(&card->ac97_lock);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
outw(reg, (card->iobase + ALI_CPR) + 2);
|
||
|
|
for (count = 0; count < 0x7f; count++) {
|
||
|
|
val = inb(card->iobase + ALI_CSPSR);
|
||
|
|
if (val & 0x02) {
|
||
|
|
data = inw(card->iobase + ALI_SPR);
|
||
|
|
addr2 = inw((card->iobase + ALI_SPR) + 2);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
spin_unlock(&card->ac97_lock);
|
||
|
|
if (count == 0x7f)
|
||
|
|
return -1;
|
||
|
|
if (addr2 != addr1)
|
||
|
|
return -1;
|
||
|
|
return ((u16) data);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* write ac97 codec register */
|
||
|
|
|
||
|
|
static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data)
|
||
|
|
{
|
||
|
|
struct ali_card *card = dev->private_data;
|
||
|
|
int count1 = 100;
|
||
|
|
char val;
|
||
|
|
unsigned short int count;
|
||
|
|
|
||
|
|
spin_lock(&card->ac97_lock);
|
||
|
|
while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
for (count = 0; count < 0x7f; count++) {
|
||
|
|
val = inb(card->iobase + ALI_CSPSR);
|
||
|
|
if (val & 0x08)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (count == 0x7f) {
|
||
|
|
printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
|
||
|
|
spin_unlock(&card->ac97_lock);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
outw(data, (card->iobase + ALI_CPR));
|
||
|
|
outb(reg, (card->iobase + ALI_CPR) + 2);
|
||
|
|
for (count = 0; count < 0x7f; count++) {
|
||
|
|
val = inb(card->iobase + ALI_CSPSR);
|
||
|
|
if (val & 0x01)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
spin_unlock(&card->ac97_lock);
|
||
|
|
if (count == 0x7f)
|
||
|
|
printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* OSS /dev/mixer file operation methods */
|
||
|
|
|
||
|
|
static int ali_open_mixdev(struct inode *inode, struct file *file)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
int minor = iminor(inode);
|
||
|
|
struct ali_card *card = devs;
|
||
|
|
for (card = devs; card != NULL; card = card->next) {
|
||
|
|
/*
|
||
|
|
* If we are initializing and then fail, card could go
|
||
|
|
* away unuexpectedly while we are in the for() loop.
|
||
|
|
* So, check for card on each iteration before we check
|
||
|
|
* for card->initializing to avoid a possible oops.
|
||
|
|
* This usually only matters for times when the driver is
|
||
|
|
* autoloaded by kmod.
|
||
|
|
*/
|
||
|
|
for (i = 0; i < 50 && card && card->initializing; i++) {
|
||
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
||
|
|
schedule_timeout(HZ / 20);
|
||
|
|
}
|
||
|
|
for (i = 0; i < NR_AC97 && card && !card->initializing; i++)
|
||
|
|
if (card->ac97_codec[i] != NULL
|
||
|
|
&& card->ac97_codec[i]->dev_mixer == minor) {
|
||
|
|
file->private_data = card->ac97_codec[i];
|
||
|
|
return nonseekable_open(inode, file);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ali_ioctl_mixdev(struct inode *inode,
|
||
|
|
struct file *file,
|
||
|
|
unsigned int cmd, unsigned long arg)
|
||
|
|
{
|
||
|
|
struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
|
||
|
|
return codec->mixer_ioctl(codec, cmd, arg);
|
||
|
|
}
|
||
|
|
|
||
|
|
static /*const */ struct file_operations ali_mixer_fops = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.llseek = no_llseek,
|
||
|
|
.ioctl = ali_ioctl_mixdev,
|
||
|
|
.open = ali_open_mixdev,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* AC97 codec initialisation. These small functions exist so we don't
|
||
|
|
duplicate code between module init and apm resume */
|
||
|
|
|
||
|
|
static inline int ali_ac97_exists(struct ali_card *card, int ac97_number)
|
||
|
|
{
|
||
|
|
unsigned int i = 1;
|
||
|
|
u32 reg = inl(card->iobase + ALI_RTSR);
|
||
|
|
if (ac97_number) {
|
||
|
|
while (i < 100) {
|
||
|
|
|
||
|
|
reg = inl(card->iobase + ALI_RTSR);
|
||
|
|
if (reg & 0x40) {
|
||
|
|
break;
|
||
|
|
} else {
|
||
|
|
outl(reg | 0x00000040,
|
||
|
|
card->iobase + 0x34);
|
||
|
|
udelay(1);
|
||
|
|
}
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
|
||
|
|
} else {
|
||
|
|
while (i < 100) {
|
||
|
|
reg = inl(card->iobase + ALI_RTSR);
|
||
|
|
if (reg & 0x80) {
|
||
|
|
break;
|
||
|
|
} else {
|
||
|
|
outl(reg | 0x00000080,
|
||
|
|
card->iobase + 0x34);
|
||
|
|
udelay(1);
|
||
|
|
}
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ac97_number)
|
||
|
|
return reg & 0x40;
|
||
|
|
else
|
||
|
|
return reg & 0x80;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec)
|
||
|
|
{
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9);
|
||
|
|
ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800);
|
||
|
|
return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec)
|
||
|
|
{
|
||
|
|
/* Returns 0 on failure */
|
||
|
|
int i;
|
||
|
|
u16 addr;
|
||
|
|
if (ac97_probe_codec(codec) == 0)
|
||
|
|
return 0;
|
||
|
|
/* ac97_probe_codec is success ,then begin to init codec */
|
||
|
|
ali_ac97_set(codec, AC97_RESET, 0xffff);
|
||
|
|
if (card->channel[0].used == 1) {
|
||
|
|
ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808);
|
||
|
|
ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (card->channel[2].used == 1) //if MICin then init codec
|
||
|
|
{
|
||
|
|
ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_MIC_VOL, 0x8808);
|
||
|
|
ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
|
||
|
|
ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000);
|
||
|
|
}
|
||
|
|
|
||
|
|
ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_CD_VOL, 0x0808);
|
||
|
|
ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808);
|
||
|
|
ali_ac97_set(codec, AC97_AUX_VOL, 0x0808);
|
||
|
|
ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048);
|
||
|
|
ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000);
|
||
|
|
ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX);
|
||
|
|
ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000);
|
||
|
|
ali_ac97_set(codec, 0x38, 0x0000);
|
||
|
|
addr = ali_ac97_get(codec, 0x2a);
|
||
|
|
ali_ac97_set(codec, 0x2a, addr | 0x0001);
|
||
|
|
addr = ali_ac97_get(codec, 0x2a);
|
||
|
|
addr = ali_ac97_get(codec, 0x28);
|
||
|
|
ali_ac97_set(codec, 0x2c, 0xbb80);
|
||
|
|
addr = ali_ac97_get(codec, 0x2c);
|
||
|
|
/* power it all up */
|
||
|
|
ali_ac97_set(codec, AC97_POWER_CONTROL,
|
||
|
|
ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00);
|
||
|
|
/* wait for analog ready */
|
||
|
|
for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) {
|
||
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
||
|
|
schedule_timeout(HZ / 20);
|
||
|
|
}
|
||
|
|
/* FIXME !! */
|
||
|
|
i++;
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* I clone ali5455(2.4.7 ) not clone i810_audio(2.4.18) */
|
||
|
|
|
||
|
|
static int ali_reset_5455(struct ali_card *card)
|
||
|
|
{
|
||
|
|
outl(0x80000003, card->iobase + ALI_SCR);
|
||
|
|
outl(0x83838383, card->iobase + ALI_FIFOCR1);
|
||
|
|
outl(0x83838383, card->iobase + ALI_FIFOCR2);
|
||
|
|
if (controller_pcmout_share_spdif_locked > 0) {
|
||
|
|
outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
|
||
|
|
card->iobase + ALI_SPDIFICS);
|
||
|
|
outl(0x0408000a, card->iobase + ALI_INTERFACECR);
|
||
|
|
} else {
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR); // now I select slot 7 & 8
|
||
|
|
outl(0x00200000, card->iobase + ALI_INTERFACECR); //enable codec independent spdifout
|
||
|
|
} else
|
||
|
|
outl(0x04080002, card->iobase + ALI_INTERFACECR);
|
||
|
|
}
|
||
|
|
|
||
|
|
outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
|
||
|
|
outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
|
||
|
|
if (controller_independent_spdif_locked > 0)
|
||
|
|
outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
|
||
|
|
card->iobase + ALI_SPDIFICS);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int ali_ac97_random_init_stuff(struct ali_card
|
||
|
|
*card)
|
||
|
|
{
|
||
|
|
u32 reg = inl(card->iobase + ALI_SCR);
|
||
|
|
int i = 0;
|
||
|
|
reg = inl(card->iobase + ALI_SCR);
|
||
|
|
if ((reg & 2) == 0) /* Cold required */
|
||
|
|
reg |= 2;
|
||
|
|
else
|
||
|
|
reg |= 1; /* Warm */
|
||
|
|
reg &= ~0x80000000; /* ACLink on */
|
||
|
|
outl(reg, card->iobase + ALI_SCR);
|
||
|
|
|
||
|
|
while (i < 10) {
|
||
|
|
if ((inl(card->iobase + 0x18) & (1 << 1)) == 0)
|
||
|
|
break;
|
||
|
|
current->state = TASK_UNINTERRUPTIBLE;
|
||
|
|
schedule_timeout(HZ / 20);
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
if (i == 10) {
|
||
|
|
printk(KERN_ERR "ali_audio: AC'97 reset failed.\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
||
|
|
schedule_timeout(HZ / 2);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* AC97 codec initialisation. */
|
||
|
|
|
||
|
|
static int __devinit ali_ac97_init(struct ali_card *card)
|
||
|
|
{
|
||
|
|
int num_ac97 = 0;
|
||
|
|
int total_channels = 0;
|
||
|
|
struct ac97_codec *codec;
|
||
|
|
u16 eid;
|
||
|
|
|
||
|
|
if (!ali_ac97_random_init_stuff(card))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* Number of channels supported */
|
||
|
|
/* What about the codec? Just because the ICH supports */
|
||
|
|
/* multiple channels doesn't mean the codec does. */
|
||
|
|
/* we'll have to modify this in the codec section below */
|
||
|
|
/* to reflect what the codec has. */
|
||
|
|
/* ICH and ICH0 only support 2 channels so don't bother */
|
||
|
|
/* to check.... */
|
||
|
|
inl(card->iobase + ALI_CPR);
|
||
|
|
card->channels = 2;
|
||
|
|
|
||
|
|
for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
|
||
|
|
|
||
|
|
/* Assume codec isn't available until we go through the
|
||
|
|
* gauntlet below */
|
||
|
|
card->ac97_codec[num_ac97] = NULL;
|
||
|
|
/* The ICH programmer's reference says you should */
|
||
|
|
/* check the ready status before probing. So we chk */
|
||
|
|
/* What do we do if it's not ready? Wait and try */
|
||
|
|
/* again, or abort? */
|
||
|
|
if (!ali_ac97_exists(card, num_ac97)) {
|
||
|
|
if (num_ac97 == 0)
|
||
|
|
printk(KERN_ERR "ali_audio: Primary codec not ready.\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((codec = ac97_alloc_codec()) == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
/* initialize some basic codec information, other fields will be filled
|
||
|
|
in ac97_probe_codec */
|
||
|
|
codec->private_data = card;
|
||
|
|
codec->id = num_ac97;
|
||
|
|
codec->codec_read = ali_ac97_get;
|
||
|
|
codec->codec_write = ali_ac97_set;
|
||
|
|
if (!ali_ac97_probe_and_powerup(card, codec)) {
|
||
|
|
printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready",
|
||
|
|
num_ac97);
|
||
|
|
kfree(codec);
|
||
|
|
break; /* it didn't work */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Store state information about S/PDIF transmitter */
|
||
|
|
card->ac97_status = 0;
|
||
|
|
/* Don't attempt to get eid until powerup is complete */
|
||
|
|
eid = ali_ac97_get(codec, AC97_EXTENDED_ID);
|
||
|
|
if (eid == 0xFFFF) {
|
||
|
|
printk(KERN_ERR "ali_audio: no codec attached ?\n");
|
||
|
|
kfree(codec);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
card->ac97_features = eid;
|
||
|
|
/* Now check the codec for useful features to make up for
|
||
|
|
the dumbness of the ali5455 hardware engine */
|
||
|
|
if (!(eid & 0x0001))
|
||
|
|
printk(KERN_WARNING
|
||
|
|
"ali_audio: only 48Khz playback available.\n");
|
||
|
|
else {
|
||
|
|
if (!ali_ac97_enable_variable_rate(codec)) {
|
||
|
|
printk(KERN_WARNING
|
||
|
|
"ali_audio: Codec refused to allow VRA, using 48Khz only.\n");
|
||
|
|
card->ac97_features &= ~1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Determine how many channels the codec(s) support */
|
||
|
|
/* - The primary codec always supports 2 */
|
||
|
|
/* - If the codec supports AMAP, surround DACs will */
|
||
|
|
/* automaticlly get assigned to slots. */
|
||
|
|
/* * Check for surround DACs and increment if */
|
||
|
|
/* found. */
|
||
|
|
/* - Else check if the codec is revision 2.2 */
|
||
|
|
/* * If surround DACs exist, assign them to slots */
|
||
|
|
/* and increment channel count. */
|
||
|
|
|
||
|
|
/* All of this only applies to ICH2 and above. ICH */
|
||
|
|
/* and ICH0 only support 2 channels. ICH2 will only */
|
||
|
|
/* support multiple codecs in a "split audio" config. */
|
||
|
|
/* as described above. */
|
||
|
|
|
||
|
|
/* TODO: Remove all the debugging messages! */
|
||
|
|
|
||
|
|
if ((eid & 0xc000) == 0) /* primary codec */
|
||
|
|
total_channels += 2;
|
||
|
|
if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) {
|
||
|
|
printk(KERN_ERR "ali_audio: couldn't register mixer!\n");
|
||
|
|
kfree(codec);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
card->ac97_codec[num_ac97] = codec;
|
||
|
|
}
|
||
|
|
/* pick the minimum of channels supported by ICHx or codec(s) */
|
||
|
|
card->channels = (card->channels > total_channels) ? total_channels : card->channels;
|
||
|
|
return num_ac97;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __devinit ali_configure_clocking(void)
|
||
|
|
{
|
||
|
|
struct ali_card *card;
|
||
|
|
struct ali_state *state;
|
||
|
|
struct dmabuf *dmabuf;
|
||
|
|
unsigned int i, offset, new_offset;
|
||
|
|
unsigned long flags;
|
||
|
|
card = devs;
|
||
|
|
|
||
|
|
/* We could try to set the clocking for multiple cards, but can you even have
|
||
|
|
* more than one ali in a machine? Besides, clocking is global, so unless
|
||
|
|
* someone actually thinks more than one ali in a machine is possible and
|
||
|
|
* decides to rewrite that little bit, setting the rate for more than one card
|
||
|
|
* is a waste of time.
|
||
|
|
*/
|
||
|
|
if (card != NULL) {
|
||
|
|
state = card->states[0] = (struct ali_state *)
|
||
|
|
kmalloc(sizeof(struct ali_state), GFP_KERNEL);
|
||
|
|
if (state == NULL)
|
||
|
|
return;
|
||
|
|
memset(state, 0, sizeof(struct ali_state));
|
||
|
|
dmabuf = &state->dmabuf;
|
||
|
|
dmabuf->write_channel = card->alloc_pcm_channel(card);
|
||
|
|
state->virt = 0;
|
||
|
|
state->card = card;
|
||
|
|
state->magic = ALI5455_STATE_MAGIC;
|
||
|
|
init_waitqueue_head(&dmabuf->wait);
|
||
|
|
init_MUTEX(&state->open_sem);
|
||
|
|
dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT;
|
||
|
|
dmabuf->trigger = PCM_ENABLE_OUTPUT;
|
||
|
|
ali_set_dac_rate(state, 48000);
|
||
|
|
if (prog_dmabuf(state, 0) != 0)
|
||
|
|
goto config_out_nodmabuf;
|
||
|
|
|
||
|
|
if (dmabuf->dmasize < 16384)
|
||
|
|
goto config_out;
|
||
|
|
|
||
|
|
dmabuf->count = dmabuf->dmasize;
|
||
|
|
outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI);
|
||
|
|
|
||
|
|
local_irq_save(flags);
|
||
|
|
start_dac(state);
|
||
|
|
offset = ali_get_dma_addr(state, 0);
|
||
|
|
mdelay(50);
|
||
|
|
new_offset = ali_get_dma_addr(state, 0);
|
||
|
|
stop_dac(state);
|
||
|
|
|
||
|
|
outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR);
|
||
|
|
local_irq_restore(flags);
|
||
|
|
|
||
|
|
i = new_offset - offset;
|
||
|
|
|
||
|
|
if (i == 0)
|
||
|
|
goto config_out;
|
||
|
|
i = i / 4 * 20;
|
||
|
|
if (i > 48500 || i < 47500) {
|
||
|
|
clocking = clocking * clocking / i;
|
||
|
|
}
|
||
|
|
config_out:
|
||
|
|
dealloc_dmabuf(state);
|
||
|
|
config_out_nodmabuf:
|
||
|
|
state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num);
|
||
|
|
kfree(state);
|
||
|
|
card->states[0] = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
|
||
|
|
until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
|
||
|
|
|
||
|
|
static int __devinit ali_probe(struct pci_dev *pci_dev,
|
||
|
|
const struct pci_device_id *pci_id)
|
||
|
|
{
|
||
|
|
struct ali_card *card;
|
||
|
|
if (pci_enable_device(pci_dev))
|
||
|
|
return -EIO;
|
||
|
|
if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) {
|
||
|
|
printk(KERN_ERR "ali5455: architecture does not support"
|
||
|
|
" 32bit PCI busmaster DMA\n");
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) {
|
||
|
|
printk(KERN_ERR "ali_audio: out of memory\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
memset(card, 0, sizeof(*card));
|
||
|
|
card->initializing = 1;
|
||
|
|
card->iobase = pci_resource_start(pci_dev, 0);
|
||
|
|
card->pci_dev = pci_dev;
|
||
|
|
card->pci_id = pci_id->device;
|
||
|
|
card->irq = pci_dev->irq;
|
||
|
|
card->next = devs;
|
||
|
|
card->magic = ALI5455_CARD_MAGIC;
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
card->pm_suspended = 0;
|
||
|
|
#endif
|
||
|
|
spin_lock_init(&card->lock);
|
||
|
|
spin_lock_init(&card->ac97_lock);
|
||
|
|
devs = card;
|
||
|
|
pci_set_master(pci_dev);
|
||
|
|
printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n",
|
||
|
|
card_names[pci_id->driver_data], card->iobase, card->irq);
|
||
|
|
card->alloc_pcm_channel = ali_alloc_pcm_channel;
|
||
|
|
card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
|
||
|
|
card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel;
|
||
|
|
card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel;
|
||
|
|
card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel;
|
||
|
|
card->free_pcm_channel = ali_free_pcm_channel;
|
||
|
|
card->channel[0].offset = 0;
|
||
|
|
card->channel[0].port = 0x40;
|
||
|
|
card->channel[0].num = 0;
|
||
|
|
card->channel[1].offset = 0;
|
||
|
|
card->channel[1].port = 0x50;
|
||
|
|
card->channel[1].num = 1;
|
||
|
|
card->channel[2].offset = 0;
|
||
|
|
card->channel[2].port = 0x60;
|
||
|
|
card->channel[2].num = 2;
|
||
|
|
card->channel[3].offset = 0;
|
||
|
|
card->channel[3].port = 0x70;
|
||
|
|
card->channel[3].num = 3;
|
||
|
|
card->channel[4].offset = 0;
|
||
|
|
card->channel[4].port = 0xb0;
|
||
|
|
card->channel[4].num = 4;
|
||
|
|
/* claim our iospace and irq */
|
||
|
|
request_region(card->iobase, 256, card_names[pci_id->driver_data]);
|
||
|
|
if (request_irq(card->irq, &ali_interrupt, SA_SHIRQ,
|
||
|
|
card_names[pci_id->driver_data], card)) {
|
||
|
|
printk(KERN_ERR "ali_audio: unable to allocate irq %d\n",
|
||
|
|
card->irq);
|
||
|
|
release_region(card->iobase, 256);
|
||
|
|
kfree(card);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ali_reset_5455(card) <= 0) {
|
||
|
|
unregister_sound_dsp(card->dev_audio);
|
||
|
|
release_region(card->iobase, 256);
|
||
|
|
free_irq(card->irq, card);
|
||
|
|
kfree(card);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* initialize AC97 codec and register /dev/mixer */
|
||
|
|
if (ali_ac97_init(card) < 0) {
|
||
|
|
release_region(card->iobase, 256);
|
||
|
|
free_irq(card->irq, card);
|
||
|
|
kfree(card);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
pci_set_drvdata(pci_dev, card);
|
||
|
|
|
||
|
|
if (clocking == 0) {
|
||
|
|
clocking = 48000;
|
||
|
|
ali_configure_clocking();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* register /dev/dsp */
|
||
|
|
if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) {
|
||
|
|
int i;
|
||
|
|
printk(KERN_ERR"ali_audio: couldn't register DSP device!\n");
|
||
|
|
release_region(card->iobase, 256);
|
||
|
|
free_irq(card->irq, card);
|
||
|
|
for (i = 0; i < NR_AC97; i++)
|
||
|
|
if (card->ac97_codec[i] != NULL) {
|
||
|
|
unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
|
||
|
|
kfree(card->ac97_codec[i]);
|
||
|
|
}
|
||
|
|
kfree(card);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
card->initializing = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __devexit ali_remove(struct pci_dev *pci_dev)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
struct ali_card *card = pci_get_drvdata(pci_dev);
|
||
|
|
/* free hardware resources */
|
||
|
|
free_irq(card->irq, devs);
|
||
|
|
release_region(card->iobase, 256);
|
||
|
|
/* unregister audio devices */
|
||
|
|
for (i = 0; i < NR_AC97; i++)
|
||
|
|
if (card->ac97_codec[i] != NULL) {
|
||
|
|
unregister_sound_mixer(card->ac97_codec[i]->
|
||
|
|
dev_mixer);
|
||
|
|
ac97_release_codec(card->ac97_codec[i]);
|
||
|
|
card->ac97_codec[i] = NULL;
|
||
|
|
}
|
||
|
|
unregister_sound_dsp(card->dev_audio);
|
||
|
|
kfree(card);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
static int ali_pm_suspend(struct pci_dev *dev, pm_message_t pm_state)
|
||
|
|
{
|
||
|
|
struct ali_card *card = pci_get_drvdata(dev);
|
||
|
|
struct ali_state *state;
|
||
|
|
unsigned long flags;
|
||
|
|
struct dmabuf *dmabuf;
|
||
|
|
int i, num_ac97;
|
||
|
|
|
||
|
|
if (!card)
|
||
|
|
return 0;
|
||
|
|
spin_lock_irqsave(&card->lock, flags);
|
||
|
|
card->pm_suspended = 1;
|
||
|
|
for (i = 0; i < NR_HW_CH; i++) {
|
||
|
|
state = card->states[i];
|
||
|
|
if (!state)
|
||
|
|
continue;
|
||
|
|
/* this happens only if there are open files */
|
||
|
|
dmabuf = &state->dmabuf;
|
||
|
|
if (dmabuf->enable & DAC_RUNNING ||
|
||
|
|
(dmabuf->count
|
||
|
|
&& (dmabuf->trigger & PCM_ENABLE_OUTPUT))) {
|
||
|
|
state->pm_saved_dac_rate = dmabuf->rate;
|
||
|
|
stop_dac(state);
|
||
|
|
} else {
|
||
|
|
state->pm_saved_dac_rate = 0;
|
||
|
|
}
|
||
|
|
if (dmabuf->enable & ADC_RUNNING) {
|
||
|
|
state->pm_saved_adc_rate = dmabuf->rate;
|
||
|
|
stop_adc(state);
|
||
|
|
} else {
|
||
|
|
state->pm_saved_adc_rate = 0;
|
||
|
|
}
|
||
|
|
dmabuf->ready = 0;
|
||
|
|
dmabuf->swptr = dmabuf->hwptr = 0;
|
||
|
|
dmabuf->count = dmabuf->total_bytes = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
||
|
|
/* save mixer settings */
|
||
|
|
for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
|
||
|
|
struct ac97_codec *codec = card->ac97_codec[num_ac97];
|
||
|
|
if (!codec)
|
||
|
|
continue;
|
||
|
|
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
|
||
|
|
if ((supported_mixer(codec, i)) && (codec->read_mixer)) {
|
||
|
|
card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pci_save_state(dev); /* XXX do we need this? */
|
||
|
|
pci_disable_device(dev); /* disable busmastering */
|
||
|
|
pci_set_power_state(dev, 3); /* Zzz. */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int ali_pm_resume(struct pci_dev *dev)
|
||
|
|
{
|
||
|
|
int num_ac97, i = 0;
|
||
|
|
struct ali_card *card = pci_get_drvdata(dev);
|
||
|
|
pci_enable_device(dev);
|
||
|
|
pci_restore_state(dev);
|
||
|
|
/* observation of a toshiba portege 3440ct suggests that the
|
||
|
|
hardware has to be more or less completely reinitialized from
|
||
|
|
scratch after an apm suspend. Works For Me. -dan */
|
||
|
|
ali_ac97_random_init_stuff(card);
|
||
|
|
for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
|
||
|
|
struct ac97_codec *codec = card->ac97_codec[num_ac97];
|
||
|
|
/* check they haven't stolen the hardware while we were
|
||
|
|
away */
|
||
|
|
if (!codec || !ali_ac97_exists(card, num_ac97)) {
|
||
|
|
if (num_ac97)
|
||
|
|
continue;
|
||
|
|
else
|
||
|
|
BUG();
|
||
|
|
}
|
||
|
|
if (!ali_ac97_probe_and_powerup(card, codec))
|
||
|
|
BUG();
|
||
|
|
if ((card->ac97_features & 0x0001)) {
|
||
|
|
/* at probe time we found we could do variable
|
||
|
|
rates, but APM suspend has made it forget
|
||
|
|
its magical powers */
|
||
|
|
if (!ali_ac97_enable_variable_rate(codec))
|
||
|
|
BUG();
|
||
|
|
}
|
||
|
|
/* we lost our mixer settings, so restore them */
|
||
|
|
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
|
||
|
|
if (supported_mixer(codec, i)) {
|
||
|
|
int val = card->pm_saved_mixer_settings[i][num_ac97];
|
||
|
|
codec->mixer_state[i] = val;
|
||
|
|
codec->write_mixer(codec, i,
|
||
|
|
(val & 0xff),
|
||
|
|
((val >> 8) & 0xff));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* we need to restore the sample rate from whatever it was */
|
||
|
|
for (i = 0; i < NR_HW_CH; i++) {
|
||
|
|
struct ali_state *state = card->states[i];
|
||
|
|
if (state) {
|
||
|
|
if (state->pm_saved_adc_rate)
|
||
|
|
ali_set_adc_rate(state, state->pm_saved_adc_rate);
|
||
|
|
if (state->pm_saved_dac_rate)
|
||
|
|
ali_set_dac_rate(state, state->pm_saved_dac_rate);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
card->pm_suspended = 0;
|
||
|
|
/* any processes that were reading/writing during the suspend
|
||
|
|
probably ended up here */
|
||
|
|
for (i = 0; i < NR_HW_CH; i++) {
|
||
|
|
struct ali_state *state = card->states[i];
|
||
|
|
if (state)
|
||
|
|
wake_up(&state->dmabuf.wait);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_PM */
|
||
|
|
|
||
|
|
MODULE_AUTHOR("");
|
||
|
|
MODULE_DESCRIPTION("ALI 5455 audio support");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
module_param(clocking, int, 0);
|
||
|
|
/* FIXME: bool? */
|
||
|
|
module_param(strict_clocking, uint, 0);
|
||
|
|
module_param(codec_pcmout_share_spdif_locked, uint, 0);
|
||
|
|
module_param(codec_independent_spdif_locked, uint, 0);
|
||
|
|
module_param(controller_pcmout_share_spdif_locked, uint, 0);
|
||
|
|
module_param(controller_independent_spdif_locked, uint, 0);
|
||
|
|
#define ALI5455_MODULE_NAME "ali5455"
|
||
|
|
static struct pci_driver ali_pci_driver = {
|
||
|
|
.name = ALI5455_MODULE_NAME,
|
||
|
|
.id_table = ali_pci_tbl,
|
||
|
|
.probe = ali_probe,
|
||
|
|
.remove = __devexit_p(ali_remove),
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
.suspend = ali_pm_suspend,
|
||
|
|
.resume = ali_pm_resume,
|
||
|
|
#endif /* CONFIG_PM */
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init ali_init_module(void)
|
||
|
|
{
|
||
|
|
printk(KERN_INFO "ALI 5455 + AC97 Audio, version "
|
||
|
|
DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n");
|
||
|
|
|
||
|
|
if (codec_independent_spdif_locked > 0) {
|
||
|
|
if (codec_independent_spdif_locked == 32000
|
||
|
|
|| codec_independent_spdif_locked == 44100
|
||
|
|
|| codec_independent_spdif_locked == 48000) {
|
||
|
|
printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
|
||
|
|
codec_independent_spdif_locked = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (controller_independent_spdif_locked > 0) {
|
||
|
|
if (controller_independent_spdif_locked == 32000
|
||
|
|
|| controller_independent_spdif_locked == 44100
|
||
|
|
|| controller_independent_spdif_locked == 48000) {
|
||
|
|
printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked);
|
||
|
|
} else {
|
||
|
|
printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
|
||
|
|
controller_independent_spdif_locked = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (codec_pcmout_share_spdif_locked > 0) {
|
||
|
|
if (codec_pcmout_share_spdif_locked == 32000
|
||
|
|
|| codec_pcmout_share_spdif_locked == 44100
|
||
|
|
|| codec_pcmout_share_spdif_locked == 48000) {
|
||
|
|
printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked);
|
||
|
|
} else {
|
||
|
|
printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
|
||
|
|
codec_pcmout_share_spdif_locked = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (controller_pcmout_share_spdif_locked > 0) {
|
||
|
|
if (controller_pcmout_share_spdif_locked == 32000
|
||
|
|
|| controller_pcmout_share_spdif_locked == 44100
|
||
|
|
|| controller_pcmout_share_spdif_locked == 48000) {
|
||
|
|
printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked);
|
||
|
|
} else {
|
||
|
|
printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
|
||
|
|
controller_pcmout_share_spdif_locked = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return pci_register_driver(&ali_pci_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit ali_cleanup_module(void)
|
||
|
|
{
|
||
|
|
pci_unregister_driver(&ali_pci_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(ali_init_module);
|
||
|
|
module_exit(ali_cleanup_module);
|
||
|
|
/*
|
||
|
|
Local Variables:
|
||
|
|
c-basic-offset: 8
|
||
|
|
End:
|
||
|
|
*/
|