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862 lines
20 KiB
862 lines
20 KiB
/*
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* $Id: saa7134-oss.c,v 1.17 2005/06/28 23:41:47 mkrufky Exp $
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*
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* device driver for philips saa7134 based TV cards
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* oss dsp interface
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*
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* (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
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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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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/soundcard.h>
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#include "saa7134-reg.h"
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#include "saa7134.h"
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/* ------------------------------------------------------------------ */
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static unsigned int oss_debug = 0;
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module_param(oss_debug, int, 0644);
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MODULE_PARM_DESC(oss_debug,"enable debug messages [oss]");
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static unsigned int oss_rate = 0;
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module_param(oss_rate, int, 0444);
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MODULE_PARM_DESC(oss_rate,"sample rate (valid are: 32000,48000)");
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#define dprintk(fmt, arg...) if (oss_debug) \
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printk(KERN_DEBUG "%s/oss: " fmt, dev->name , ## arg)
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/* ------------------------------------------------------------------ */
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static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks)
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{
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if (blksize < 0x100)
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blksize = 0x100;
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if (blksize > 0x10000)
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blksize = 0x10000;
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if (blocks < 2)
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blocks = 2;
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if ((blksize * blocks) > 1024*1024)
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blocks = 1024*1024 / blksize;
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dev->oss.blocks = blocks;
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dev->oss.blksize = blksize;
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dev->oss.bufsize = blksize * blocks;
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dprintk("buffer config: %d blocks / %d bytes, %d kB total\n",
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blocks,blksize,blksize * blocks / 1024);
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return 0;
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}
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static int dsp_buffer_init(struct saa7134_dev *dev)
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{
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int err;
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if (!dev->oss.bufsize)
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BUG();
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videobuf_dma_init(&dev->oss.dma);
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err = videobuf_dma_init_kernel(&dev->oss.dma, PCI_DMA_FROMDEVICE,
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(dev->oss.bufsize + PAGE_SIZE) >> PAGE_SHIFT);
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if (0 != err)
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return err;
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return 0;
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}
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static int dsp_buffer_free(struct saa7134_dev *dev)
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{
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if (!dev->oss.blksize)
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BUG();
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videobuf_dma_free(&dev->oss.dma);
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dev->oss.blocks = 0;
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dev->oss.blksize = 0;
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dev->oss.bufsize = 0;
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return 0;
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}
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static void dsp_dma_start(struct saa7134_dev *dev)
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{
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dev->oss.dma_blk = 0;
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dev->oss.dma_running = 1;
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saa7134_set_dmabits(dev);
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}
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static void dsp_dma_stop(struct saa7134_dev *dev)
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{
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dev->oss.dma_blk = -1;
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dev->oss.dma_running = 0;
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saa7134_set_dmabits(dev);
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}
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static int dsp_rec_start(struct saa7134_dev *dev)
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{
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int err, bswap, sign;
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u32 fmt, control;
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unsigned long flags;
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/* prepare buffer */
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if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->oss.dma)))
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return err;
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if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->oss.pt)))
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goto fail1;
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if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->oss.pt,
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dev->oss.dma.sglist,
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dev->oss.dma.sglen,
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0)))
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goto fail2;
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/* sample format */
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switch (dev->oss.afmt) {
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case AFMT_U8:
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case AFMT_S8: fmt = 0x00; break;
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case AFMT_U16_LE:
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case AFMT_U16_BE:
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case AFMT_S16_LE:
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case AFMT_S16_BE: fmt = 0x01; break;
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default:
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err = -EINVAL;
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goto fail2;
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}
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switch (dev->oss.afmt) {
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case AFMT_S8:
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case AFMT_S16_LE:
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case AFMT_S16_BE: sign = 1; break;
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default: sign = 0; break;
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}
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switch (dev->oss.afmt) {
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case AFMT_U16_BE:
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case AFMT_S16_BE: bswap = 1; break;
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default: bswap = 0; break;
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}
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switch (dev->pci->device) {
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case PCI_DEVICE_ID_PHILIPS_SAA7134:
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if (1 == dev->oss.channels)
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fmt |= (1 << 3);
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if (2 == dev->oss.channels)
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fmt |= (3 << 3);
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if (sign)
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fmt |= 0x04;
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fmt |= (TV == dev->oss.input) ? 0xc0 : 0x80;
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saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->oss.blksize - 1) & 0x0000ff));
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saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->oss.blksize - 1) & 0x00ff00) >> 8);
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saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->oss.blksize - 1) & 0xff0000) >> 16);
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saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt);
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break;
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case PCI_DEVICE_ID_PHILIPS_SAA7133:
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case PCI_DEVICE_ID_PHILIPS_SAA7135:
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if (1 == dev->oss.channels)
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fmt |= (1 << 4);
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if (2 == dev->oss.channels)
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fmt |= (2 << 4);
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if (!sign)
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fmt |= 0x04;
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saa_writel(0x588 >> 2, dev->oss.blksize -4);
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saa_writel(0x58c >> 2, 0x543210 | (fmt << 24));
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break;
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}
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dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n",
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dev->oss.afmt, dev->oss.channels, fmt,
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bswap ? 'b' : '-');
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/* dma: setup channel 6 (= AUDIO) */
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control = SAA7134_RS_CONTROL_BURST_16 |
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SAA7134_RS_CONTROL_ME |
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(dev->oss.pt.dma >> 12);
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if (bswap)
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control |= SAA7134_RS_CONTROL_BSWAP;
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saa_writel(SAA7134_RS_BA1(6),0);
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saa_writel(SAA7134_RS_BA2(6),dev->oss.blksize);
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saa_writel(SAA7134_RS_PITCH(6),0);
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saa_writel(SAA7134_RS_CONTROL(6),control);
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/* start dma */
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dev->oss.recording_on = 1;
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spin_lock_irqsave(&dev->slock,flags);
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dsp_dma_start(dev);
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spin_unlock_irqrestore(&dev->slock,flags);
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return 0;
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fail2:
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saa7134_pgtable_free(dev->pci,&dev->oss.pt);
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fail1:
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videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
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return err;
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}
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static int dsp_rec_stop(struct saa7134_dev *dev)
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{
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unsigned long flags;
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dprintk("rec_stop dma_blk=%d\n",dev->oss.dma_blk);
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/* stop dma */
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dev->oss.recording_on = 0;
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spin_lock_irqsave(&dev->slock,flags);
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dsp_dma_stop(dev);
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spin_unlock_irqrestore(&dev->slock,flags);
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/* unlock buffer */
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saa7134_pgtable_free(dev->pci,&dev->oss.pt);
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videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
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return 0;
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}
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/* ------------------------------------------------------------------ */
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static int dsp_open(struct inode *inode, struct file *file)
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{
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int minor = iminor(inode);
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struct saa7134_dev *h,*dev = NULL;
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struct list_head *list;
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int err;
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list_for_each(list,&saa7134_devlist) {
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h = list_entry(list, struct saa7134_dev, devlist);
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if (h->oss.minor_dsp == minor)
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dev = h;
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}
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if (NULL == dev)
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return -ENODEV;
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down(&dev->oss.lock);
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err = -EBUSY;
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if (dev->oss.users_dsp)
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goto fail1;
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dev->oss.users_dsp++;
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file->private_data = dev;
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dev->oss.afmt = AFMT_U8;
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dev->oss.channels = 1;
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dev->oss.read_count = 0;
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dev->oss.read_offset = 0;
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dsp_buffer_conf(dev,PAGE_SIZE,64);
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err = dsp_buffer_init(dev);
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if (0 != err)
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goto fail2;
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up(&dev->oss.lock);
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return 0;
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fail2:
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dev->oss.users_dsp--;
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fail1:
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up(&dev->oss.lock);
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return err;
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}
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static int dsp_release(struct inode *inode, struct file *file)
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{
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struct saa7134_dev *dev = file->private_data;
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down(&dev->oss.lock);
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if (dev->oss.recording_on)
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dsp_rec_stop(dev);
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dsp_buffer_free(dev);
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dev->oss.users_dsp--;
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file->private_data = NULL;
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up(&dev->oss.lock);
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return 0;
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}
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static ssize_t dsp_read(struct file *file, char __user *buffer,
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size_t count, loff_t *ppos)
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{
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struct saa7134_dev *dev = file->private_data;
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DECLARE_WAITQUEUE(wait, current);
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unsigned int bytes;
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unsigned long flags;
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int err,ret = 0;
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add_wait_queue(&dev->oss.wq, &wait);
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down(&dev->oss.lock);
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while (count > 0) {
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/* wait for data if needed */
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if (0 == dev->oss.read_count) {
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if (!dev->oss.recording_on) {
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err = dsp_rec_start(dev);
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if (err < 0) {
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if (0 == ret)
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ret = err;
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break;
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}
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}
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if (dev->oss.recording_on &&
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!dev->oss.dma_running) {
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/* recover from overruns */
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spin_lock_irqsave(&dev->slock,flags);
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dsp_dma_start(dev);
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spin_unlock_irqrestore(&dev->slock,flags);
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}
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if (file->f_flags & O_NONBLOCK) {
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if (0 == ret)
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ret = -EAGAIN;
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break;
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}
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up(&dev->oss.lock);
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set_current_state(TASK_INTERRUPTIBLE);
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if (0 == dev->oss.read_count)
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schedule();
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set_current_state(TASK_RUNNING);
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down(&dev->oss.lock);
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if (signal_pending(current)) {
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if (0 == ret)
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ret = -EINTR;
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break;
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}
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}
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/* copy data to userspace */
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bytes = count;
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if (bytes > dev->oss.read_count)
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bytes = dev->oss.read_count;
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if (bytes > dev->oss.bufsize - dev->oss.read_offset)
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bytes = dev->oss.bufsize - dev->oss.read_offset;
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if (copy_to_user(buffer + ret,
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dev->oss.dma.vmalloc + dev->oss.read_offset,
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bytes)) {
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if (0 == ret)
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ret = -EFAULT;
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break;
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}
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ret += bytes;
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count -= bytes;
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dev->oss.read_count -= bytes;
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dev->oss.read_offset += bytes;
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if (dev->oss.read_offset == dev->oss.bufsize)
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dev->oss.read_offset = 0;
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}
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up(&dev->oss.lock);
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remove_wait_queue(&dev->oss.wq, &wait);
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return ret;
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}
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static ssize_t dsp_write(struct file *file, const char __user *buffer,
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size_t count, loff_t *ppos)
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{
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return -EINVAL;
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}
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static int dsp_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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struct saa7134_dev *dev = file->private_data;
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void __user *argp = (void __user *) arg;
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int __user *p = argp;
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int val = 0;
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if (oss_debug > 1)
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saa7134_print_ioctl(dev->name,cmd);
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switch (cmd) {
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case OSS_GETVERSION:
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return put_user(SOUND_VERSION, p);
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case SNDCTL_DSP_GETCAPS:
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return 0;
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case SNDCTL_DSP_SPEED:
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if (get_user(val, p))
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return -EFAULT;
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/* fall through */
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case SOUND_PCM_READ_RATE:
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return put_user(dev->oss.rate, p);
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case SNDCTL_DSP_STEREO:
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if (get_user(val, p))
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return -EFAULT;
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down(&dev->oss.lock);
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dev->oss.channels = val ? 2 : 1;
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if (dev->oss.recording_on) {
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dsp_rec_stop(dev);
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dsp_rec_start(dev);
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}
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up(&dev->oss.lock);
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return put_user(dev->oss.channels-1, p);
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case SNDCTL_DSP_CHANNELS:
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if (get_user(val, p))
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return -EFAULT;
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if (val != 1 && val != 2)
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return -EINVAL;
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down(&dev->oss.lock);
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dev->oss.channels = val;
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if (dev->oss.recording_on) {
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dsp_rec_stop(dev);
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dsp_rec_start(dev);
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}
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up(&dev->oss.lock);
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/* fall through */
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case SOUND_PCM_READ_CHANNELS:
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return put_user(dev->oss.channels, p);
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case SNDCTL_DSP_GETFMTS: /* Returns a mask */
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return put_user(AFMT_U8 | AFMT_S8 |
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AFMT_U16_LE | AFMT_U16_BE |
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AFMT_S16_LE | AFMT_S16_BE, p);
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case SNDCTL_DSP_SETFMT: /* Selects ONE fmt */
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if (get_user(val, p))
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return -EFAULT;
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switch (val) {
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case AFMT_QUERY:
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/* nothing to do */
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break;
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case AFMT_U8:
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case AFMT_S8:
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case AFMT_U16_LE:
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case AFMT_U16_BE:
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case AFMT_S16_LE:
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case AFMT_S16_BE:
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down(&dev->oss.lock);
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dev->oss.afmt = val;
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if (dev->oss.recording_on) {
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dsp_rec_stop(dev);
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dsp_rec_start(dev);
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}
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up(&dev->oss.lock);
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return put_user(dev->oss.afmt, p);
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default:
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return -EINVAL;
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}
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case SOUND_PCM_READ_BITS:
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switch (dev->oss.afmt) {
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case AFMT_U8:
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case AFMT_S8:
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return put_user(8, p);
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case AFMT_U16_LE:
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case AFMT_U16_BE:
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case AFMT_S16_LE:
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case AFMT_S16_BE:
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return put_user(16, p);
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default:
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return -EINVAL;
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}
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case SNDCTL_DSP_NONBLOCK:
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file->f_flags |= O_NONBLOCK;
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return 0;
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case SNDCTL_DSP_RESET:
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down(&dev->oss.lock);
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if (dev->oss.recording_on)
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dsp_rec_stop(dev);
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up(&dev->oss.lock);
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return 0;
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case SNDCTL_DSP_GETBLKSIZE:
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return put_user(dev->oss.blksize, p);
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case SNDCTL_DSP_SETFRAGMENT:
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if (get_user(val, p))
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return -EFAULT;
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if (dev->oss.recording_on)
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return -EBUSY;
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dsp_buffer_free(dev);
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/* used to be arg >> 16 instead of val >> 16; fixed */
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dsp_buffer_conf(dev,1 << (val & 0xffff), (val >> 16) & 0xffff);
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dsp_buffer_init(dev);
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return 0;
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case SNDCTL_DSP_SYNC:
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/* NOP */
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return 0;
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case SNDCTL_DSP_GETISPACE:
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{
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audio_buf_info info;
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info.fragsize = dev->oss.blksize;
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info.fragstotal = dev->oss.blocks;
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info.bytes = dev->oss.read_count;
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info.fragments = info.bytes / info.fragsize;
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if (copy_to_user(argp, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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default:
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return -EINVAL;
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}
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}
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static unsigned int dsp_poll(struct file *file, struct poll_table_struct *wait)
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{
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struct saa7134_dev *dev = file->private_data;
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unsigned int mask = 0;
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poll_wait(file, &dev->oss.wq, wait);
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|
|
if (0 == dev->oss.read_count) {
|
|
down(&dev->oss.lock);
|
|
if (!dev->oss.recording_on)
|
|
dsp_rec_start(dev);
|
|
up(&dev->oss.lock);
|
|
} else
|
|
mask |= (POLLIN | POLLRDNORM);
|
|
return mask;
|
|
}
|
|
|
|
struct file_operations saa7134_dsp_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = dsp_open,
|
|
.release = dsp_release,
|
|
.read = dsp_read,
|
|
.write = dsp_write,
|
|
.ioctl = dsp_ioctl,
|
|
.poll = dsp_poll,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static int
|
|
mixer_recsrc_7134(struct saa7134_dev *dev)
|
|
{
|
|
int analog_io,rate;
|
|
|
|
switch (dev->oss.input) {
|
|
case TV:
|
|
saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0);
|
|
saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
|
|
break;
|
|
case LINE1:
|
|
case LINE2:
|
|
case LINE2_LEFT:
|
|
analog_io = (LINE1 == dev->oss.input) ? 0x00 : 0x08;
|
|
rate = (32000 == dev->oss.rate) ? 0x01 : 0x03;
|
|
saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io);
|
|
saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80);
|
|
saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mixer_recsrc_7133(struct saa7134_dev *dev)
|
|
{
|
|
u32 anabar, xbarin;
|
|
|
|
xbarin = 0x03; // adc
|
|
anabar = 0;
|
|
switch (dev->oss.input) {
|
|
case TV:
|
|
xbarin = 0; // Demodulator
|
|
anabar = 2; // DACs
|
|
break;
|
|
case LINE1:
|
|
anabar = 0; // aux1, aux1
|
|
break;
|
|
case LINE2:
|
|
case LINE2_LEFT:
|
|
anabar = 9; // aux2, aux2
|
|
break;
|
|
}
|
|
/* output xbar always main channel */
|
|
saa_dsp_writel(dev, 0x46c >> 2, 0xbbbb10);
|
|
saa_dsp_writel(dev, 0x464 >> 2, xbarin);
|
|
saa_writel(0x594 >> 2, anabar);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mixer_recsrc(struct saa7134_dev *dev, enum saa7134_audio_in src)
|
|
{
|
|
static const char *iname[] = { "Oops", "TV", "LINE1", "LINE2" };
|
|
|
|
dev->oss.count++;
|
|
dev->oss.input = src;
|
|
dprintk("mixer input = %s\n",iname[dev->oss.input]);
|
|
|
|
switch (dev->pci->device) {
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7134:
|
|
mixer_recsrc_7134(dev);
|
|
break;
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7133:
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7135:
|
|
mixer_recsrc_7133(dev);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mixer_level(struct saa7134_dev *dev, enum saa7134_audio_in src, int level)
|
|
{
|
|
switch (dev->pci->device) {
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7134:
|
|
switch (src) {
|
|
case TV:
|
|
/* nothing */
|
|
break;
|
|
case LINE1:
|
|
saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x10,
|
|
(100 == level) ? 0x00 : 0x10);
|
|
break;
|
|
case LINE2:
|
|
case LINE2_LEFT:
|
|
saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x20,
|
|
(100 == level) ? 0x00 : 0x20);
|
|
break;
|
|
}
|
|
break;
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7133:
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7135:
|
|
/* nothing */
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static int mixer_open(struct inode *inode, struct file *file)
|
|
{
|
|
int minor = iminor(inode);
|
|
struct saa7134_dev *h,*dev = NULL;
|
|
struct list_head *list;
|
|
|
|
list_for_each(list,&saa7134_devlist) {
|
|
h = list_entry(list, struct saa7134_dev, devlist);
|
|
if (h->oss.minor_mixer == minor)
|
|
dev = h;
|
|
}
|
|
if (NULL == dev)
|
|
return -ENODEV;
|
|
|
|
file->private_data = dev;
|
|
return 0;
|
|
}
|
|
|
|
static int mixer_release(struct inode *inode, struct file *file)
|
|
{
|
|
file->private_data = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int mixer_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct saa7134_dev *dev = file->private_data;
|
|
enum saa7134_audio_in input;
|
|
int val,ret;
|
|
void __user *argp = (void __user *) arg;
|
|
int __user *p = argp;
|
|
|
|
if (oss_debug > 1)
|
|
saa7134_print_ioctl(dev->name,cmd);
|
|
switch (cmd) {
|
|
case OSS_GETVERSION:
|
|
return put_user(SOUND_VERSION, p);
|
|
case SOUND_MIXER_INFO:
|
|
{
|
|
mixer_info info;
|
|
memset(&info,0,sizeof(info));
|
|
strlcpy(info.id, "TV audio", sizeof(info.id));
|
|
strlcpy(info.name, dev->name, sizeof(info.name));
|
|
info.modify_counter = dev->oss.count;
|
|
if (copy_to_user(argp, &info, sizeof(info)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case SOUND_OLD_MIXER_INFO:
|
|
{
|
|
_old_mixer_info info;
|
|
memset(&info,0,sizeof(info));
|
|
strlcpy(info.id, "TV audio", sizeof(info.id));
|
|
strlcpy(info.name, dev->name, sizeof(info.name));
|
|
if (copy_to_user(argp, &info, sizeof(info)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case MIXER_READ(SOUND_MIXER_CAPS):
|
|
return put_user(SOUND_CAP_EXCL_INPUT, p);
|
|
case MIXER_READ(SOUND_MIXER_STEREODEVS):
|
|
return put_user(0, p);
|
|
case MIXER_READ(SOUND_MIXER_RECMASK):
|
|
case MIXER_READ(SOUND_MIXER_DEVMASK):
|
|
val = SOUND_MASK_LINE1 | SOUND_MASK_LINE2;
|
|
if (32000 == dev->oss.rate)
|
|
val |= SOUND_MASK_VIDEO;
|
|
return put_user(val, p);
|
|
|
|
case MIXER_WRITE(SOUND_MIXER_RECSRC):
|
|
if (get_user(val, p))
|
|
return -EFAULT;
|
|
input = dev->oss.input;
|
|
if (32000 == dev->oss.rate &&
|
|
val & SOUND_MASK_VIDEO && dev->oss.input != TV)
|
|
input = TV;
|
|
if (val & SOUND_MASK_LINE1 && dev->oss.input != LINE1)
|
|
input = LINE1;
|
|
if (val & SOUND_MASK_LINE2 && dev->oss.input != LINE2)
|
|
input = LINE2;
|
|
if (input != dev->oss.input)
|
|
mixer_recsrc(dev,input);
|
|
/* fall throuth */
|
|
case MIXER_READ(SOUND_MIXER_RECSRC):
|
|
switch (dev->oss.input) {
|
|
case TV: ret = SOUND_MASK_VIDEO; break;
|
|
case LINE1: ret = SOUND_MASK_LINE1; break;
|
|
case LINE2: ret = SOUND_MASK_LINE2; break;
|
|
default: ret = 0;
|
|
}
|
|
return put_user(ret, p);
|
|
|
|
case MIXER_WRITE(SOUND_MIXER_VIDEO):
|
|
case MIXER_READ(SOUND_MIXER_VIDEO):
|
|
if (32000 != dev->oss.rate)
|
|
return -EINVAL;
|
|
return put_user(100 | 100 << 8, p);
|
|
|
|
case MIXER_WRITE(SOUND_MIXER_LINE1):
|
|
if (get_user(val, p))
|
|
return -EFAULT;
|
|
val &= 0xff;
|
|
val = (val <= 50) ? 50 : 100;
|
|
dev->oss.line1 = val;
|
|
mixer_level(dev,LINE1,dev->oss.line1);
|
|
/* fall throuth */
|
|
case MIXER_READ(SOUND_MIXER_LINE1):
|
|
return put_user(dev->oss.line1 | dev->oss.line1 << 8, p);
|
|
|
|
case MIXER_WRITE(SOUND_MIXER_LINE2):
|
|
if (get_user(val, p))
|
|
return -EFAULT;
|
|
val &= 0xff;
|
|
val = (val <= 50) ? 50 : 100;
|
|
dev->oss.line2 = val;
|
|
mixer_level(dev,LINE2,dev->oss.line2);
|
|
/* fall throuth */
|
|
case MIXER_READ(SOUND_MIXER_LINE2):
|
|
return put_user(dev->oss.line2 | dev->oss.line2 << 8, p);
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
struct file_operations saa7134_mixer_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = mixer_open,
|
|
.release = mixer_release,
|
|
.ioctl = mixer_ioctl,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
int saa7134_oss_init1(struct saa7134_dev *dev)
|
|
{
|
|
/* general */
|
|
init_MUTEX(&dev->oss.lock);
|
|
init_waitqueue_head(&dev->oss.wq);
|
|
|
|
switch (dev->pci->device) {
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7133:
|
|
case PCI_DEVICE_ID_PHILIPS_SAA7135:
|
|
saa_writel(0x588 >> 2, 0x00000fff);
|
|
saa_writel(0x58c >> 2, 0x00543210);
|
|
saa_dsp_writel(dev, 0x46c >> 2, 0xbbbbbb);
|
|
break;
|
|
}
|
|
|
|
/* dsp */
|
|
dev->oss.rate = 32000;
|
|
if (oss_rate)
|
|
dev->oss.rate = oss_rate;
|
|
dev->oss.rate = (dev->oss.rate > 40000) ? 48000 : 32000;
|
|
|
|
/* mixer */
|
|
dev->oss.line1 = 50;
|
|
dev->oss.line2 = 50;
|
|
mixer_level(dev,LINE1,dev->oss.line1);
|
|
mixer_level(dev,LINE2,dev->oss.line2);
|
|
mixer_recsrc(dev, (dev->oss.rate == 32000) ? TV : LINE2);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int saa7134_oss_fini(struct saa7134_dev *dev)
|
|
{
|
|
/* nothing */
|
|
return 0;
|
|
}
|
|
|
|
void saa7134_irq_oss_done(struct saa7134_dev *dev, unsigned long status)
|
|
{
|
|
int next_blk, reg = 0;
|
|
|
|
spin_lock(&dev->slock);
|
|
if (UNSET == dev->oss.dma_blk) {
|
|
dprintk("irq: recording stopped\n");
|
|
goto done;
|
|
}
|
|
if (0 != (status & 0x0f000000))
|
|
dprintk("irq: lost %ld\n", (status >> 24) & 0x0f);
|
|
if (0 == (status & 0x10000000)) {
|
|
/* odd */
|
|
if (0 == (dev->oss.dma_blk & 0x01))
|
|
reg = SAA7134_RS_BA1(6);
|
|
} else {
|
|
/* even */
|
|
if (1 == (dev->oss.dma_blk & 0x01))
|
|
reg = SAA7134_RS_BA2(6);
|
|
}
|
|
if (0 == reg) {
|
|
dprintk("irq: field oops [%s]\n",
|
|
(status & 0x10000000) ? "even" : "odd");
|
|
goto done;
|
|
}
|
|
if (dev->oss.read_count >= dev->oss.blksize * (dev->oss.blocks-2)) {
|
|
dprintk("irq: overrun [full=%d/%d]\n",dev->oss.read_count,
|
|
dev->oss.bufsize);
|
|
dsp_dma_stop(dev);
|
|
goto done;
|
|
}
|
|
|
|
/* next block addr */
|
|
next_blk = (dev->oss.dma_blk + 2) % dev->oss.blocks;
|
|
saa_writel(reg,next_blk * dev->oss.blksize);
|
|
if (oss_debug > 2)
|
|
dprintk("irq: ok, %s, next_blk=%d, addr=%x\n",
|
|
(status & 0x10000000) ? "even" : "odd ", next_blk,
|
|
next_blk * dev->oss.blksize);
|
|
|
|
/* update status & wake waiting readers */
|
|
dev->oss.dma_blk = (dev->oss.dma_blk + 1) % dev->oss.blocks;
|
|
dev->oss.read_count += dev->oss.blksize;
|
|
wake_up(&dev->oss.wq);
|
|
|
|
done:
|
|
spin_unlock(&dev->slock);
|
|
}
|
|
|
|
/* ----------------------------------------------------------- */
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|
|
|