Release 4.7 sound/pcmcia/pdaudiocf/pdaudiocf_irq.c

Directory: sound/pcmcia/pdaudiocf
/*
 * Driver for Sound Core PDAudioCF soundcard
 *
 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <sound/core.h>
#include "pdaudiocf.h"
#include <sound/initval.h>
#include <asm/irq_regs.h>

/*
 *
 */


irqreturn_t pdacf_interrupt(int irq, void *dev)
{
	struct snd_pdacf *chip = dev;
	unsigned short stat;
	bool wake_thread = false;

	if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|
				  PDAUDIOCF_STAT_IS_CONFIGURED|
				  PDAUDIOCF_STAT_IS_SUSPENDED)) != PDAUDIOCF_STAT_IS_CONFIGURED)
		return IRQ_HANDLED;	/* IRQ_NONE here? */

	stat = inw(chip->port + PDAUDIOCF_REG_ISR);
	if (stat & (PDAUDIOCF_IRQLVL|PDAUDIOCF_IRQOVR)) {
		if (stat & PDAUDIOCF_IRQOVR)	/* should never happen */
			snd_printk(KERN_ERR "PDAUDIOCF SRAM buffer overrun detected!\n");
		if (chip->pcm_substream)
			wake_thread = true;
		if (!(stat & PDAUDIOCF_IRQAKM))
			stat |= PDAUDIOCF_IRQAKM;	/* check rate */
	}
	if (get_irq_regs() != NULL)
		snd_ak4117_check_rate_and_errors(chip->ak4117, 0);
	return wake_thread ? IRQ_WAKE_THREAD : IRQ_HANDLED;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 117 87.97% 3 50.00%
takashi iwai takashi iwai 14 10.53% 2 33.33%
david howells david howells 2 1.50% 1 16.67%
Total 133 100.00% 6 100.00%



static inline void pdacf_transfer_mono16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	while (size-- > 0) {
		*dst++ = inw(rdp_port) ^ xor;
		inw(rdp_port);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%



static inline void pdacf_transfer_mono32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		inw(rdp_port);
		*dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 86 100.00% 1 100.00%
Total 86 100.00% 1 100.00%



static inline void pdacf_transfer_stereo16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	while (size-- > 0) {
		*dst++ = inw(rdp_port) ^ xor;
		*dst++ = inw(rdp_port) ^ xor;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 53 100.00% 1 100.00%
Total 53 100.00% 1 100.00%



static inline void pdacf_transfer_stereo32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2, val3;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		val3 = inw(rdp_port);
		*dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
		*dst++ = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 113 100.00% 1 100.00%
Total 113 100.00% 1 100.00%



static inline void pdacf_transfer_mono16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	while (size-- > 0) {
		*dst++ = swab16(inw(rdp_port) ^ xor);
		inw(rdp_port);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 50 100.00% 1 100.00%
Total 50 100.00% 1 100.00%



static inline void pdacf_transfer_mono32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		inw(rdp_port);
		*dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 86 100.00% 1 100.00%
Total 86 100.00% 1 100.00%



static inline void pdacf_transfer_stereo16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	while (size-- > 0) {
		*dst++ = swab16(inw(rdp_port) ^ xor);
		*dst++ = swab16(inw(rdp_port) ^ xor);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 59 100.00% 1 100.00%
Total 59 100.00% 1 100.00%



static inline void pdacf_transfer_stereo32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2, val3;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		val3 = inw(rdp_port);
		*dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor);
		*dst++ = swab32((((u32)val3 << 16) | (val2 & 0xff00)) ^ xor);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 116 100.00% 1 100.00%
Total 116 100.00% 1 100.00%



static inline void pdacf_transfer_mono24le(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2;
	register u32 xval1;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		inw(rdp_port);
		xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor;
		*dst++ = (u8)(xval1 >> 8);
		*dst++ = (u8)(xval1 >> 16);
		*dst++ = (u8)(xval1 >> 24);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 121 100.00% 1 100.00%
Total 121 100.00% 1 100.00%



static inline void pdacf_transfer_mono24be(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2;
	register u32 xval1;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		inw(rdp_port);
		xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor;
		*dst++ = (u8)(xval1 >> 24);
		*dst++ = (u8)(xval1 >> 16);
		*dst++ = (u8)(xval1 >> 8);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 121 100.00% 1 100.00%
Total 121 100.00% 1 100.00%



static inline void pdacf_transfer_stereo24le(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2, val3;
	register u32 xval1, xval2;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		val3 = inw(rdp_port);
		xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
		xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
		*dst++ = (u8)(xval1 >> 8);
		*dst++ = (u8)(xval1 >> 16);
		*dst++ = (u8)(xval1 >> 24);
		*dst++ = (u8)(xval2 >> 8);
		*dst++ = (u8)(xval2 >> 16);
		*dst++ = (u8)(xval2 >> 24);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 193 100.00% 1 100.00%
Total 193 100.00% 1 100.00%



static inline void pdacf_transfer_stereo24be(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port)
{
	register u16 val1, val2, val3;
	register u32 xval1, xval2;

	while (size-- > 0) {
		val1 = inw(rdp_port);
		val2 = inw(rdp_port);
		val3 = inw(rdp_port);
		xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor;
		xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor;
		*dst++ = (u8)(xval1 >> 24);
		*dst++ = (u8)(xval1 >> 16);
		*dst++ = (u8)(xval1 >> 8);
		*dst++ = (u8)(xval2 >> 24);
		*dst++ = (u8)(xval2 >> 16);
		*dst++ = (u8)(xval2 >> 8);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 193 100.00% 1 100.00%
Total 193 100.00% 1 100.00%



static void pdacf_transfer(struct snd_pdacf *chip, unsigned int size, unsigned int off)
{
	unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
	unsigned int xor = chip->pcm_xor;

	if (chip->pcm_sample == 3) {
		if (chip->pcm_little) {
			if (chip->pcm_channels == 1) {
				pdacf_transfer_mono24le((char *)chip->pcm_area + (off * 3), xor, size, rdp_port);
			} else {
				pdacf_transfer_stereo24le((char *)chip->pcm_area + (off * 6), xor, size, rdp_port);
			}
		} else {
			if (chip->pcm_channels == 1) {
				pdacf_transfer_mono24be((char *)chip->pcm_area + (off * 3), xor, size, rdp_port);
			} else {
				pdacf_transfer_stereo24be((char *)chip->pcm_area + (off * 6), xor, size, rdp_port);
			}			
		}
		return;
	}
	if (chip->pcm_swab == 0) {
		if (chip->pcm_channels == 1) {
			if (chip->pcm_frame == 2) {
				pdacf_transfer_mono16((u16 *)chip->pcm_area + off, xor, size, rdp_port);
			} else {
				pdacf_transfer_mono32((u32 *)chip->pcm_area + off, xor, size, rdp_port);
			}
		} else {
			if (chip->pcm_frame == 2) {
				pdacf_transfer_stereo16((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
			} else {
				pdacf_transfer_stereo32((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
			}
		}
	} else {
		if (chip->pcm_channels == 1) {
			if (chip->pcm_frame == 2) {
				pdacf_transfer_mono16sw((u16 *)chip->pcm_area + off, xor, size, rdp_port);
			} else {
				pdacf_transfer_mono32sw((u32 *)chip->pcm_area + off, xor, size, rdp_port);
			}
		} else {
			if (chip->pcm_frame == 2) {
				pdacf_transfer_stereo16sw((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
			} else {
				pdacf_transfer_stereo32sw((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port);
			}
		}
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 434 99.54% 1 50.00%
takashi iwai takashi iwai 2 0.46% 1 50.00%
Total 436 100.00% 2 100.00%



irqreturn_t pdacf_threaded_irq(int irq, void *dev)
{
	struct snd_pdacf *chip = dev;
	int size, off, cont, rdp, wdp;

	if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|PDAUDIOCF_STAT_IS_CONFIGURED)) != PDAUDIOCF_STAT_IS_CONFIGURED)
		return IRQ_HANDLED;
	
	if (chip->pcm_substream == NULL || chip->pcm_substream->runtime == NULL || !snd_pcm_running(chip->pcm_substream))
		return IRQ_HANDLED;

	rdp = inw(chip->port + PDAUDIOCF_REG_RDP);
	wdp = inw(chip->port + PDAUDIOCF_REG_WDP);
	/* printk(KERN_DEBUG "TASKLET: rdp = %x, wdp = %x\n", rdp, wdp); */
	size = wdp - rdp;
	if (size < 0)
		size += 0x10000;
	if (size == 0)
		size = 0x10000;
	size /= chip->pcm_frame;
	if (size > 64)
		size -= 32;

#if 0
	chip->pcm_hwptr += size;
        chip->pcm_hwptr %= chip->pcm_size;
        chip->pcm_tdone += size;
        if (chip->pcm_frame == 2) {
                unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
                while (size-- > 0) {
                        inw(rdp_port);
                        inw(rdp_port);
                }
        } else {
                unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD;
                while (size-- > 0) {
                        inw(rdp_port);
                        inw(rdp_port);
                        inw(rdp_port);
                }
        }
#else
	off = chip->pcm_hwptr + chip->pcm_tdone;
	off %= chip->pcm_size;
	chip->pcm_tdone += size;
	while (size > 0) {
		cont = chip->pcm_size - off;
		if (cont > size)
			cont = size;
		pdacf_transfer(chip, cont, off);
		off += cont;
		off %= chip->pcm_size;
		size -= cont;
	}
#endif
	mutex_lock(&chip->reg_lock);
	while (chip->pcm_tdone >= chip->pcm_period) {
		chip->pcm_hwptr += chip->pcm_period;
		chip->pcm_hwptr %= chip->pcm_size;
		chip->pcm_tdone -= chip->pcm_period;
		mutex_unlock(&chip->reg_lock);
		snd_pcm_period_elapsed(chip->pcm_substream);
		mutex_lock(&chip->reg_lock);
	}
	mutex_unlock(&chip->reg_lock);
	return IRQ_HANDLED;
}
Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 273 91.61% 1 25.00%
takashi iwai takashi iwai 25 8.39% 3 75.00%
Total 298 100.00% 4 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 2073 97.83% 4 44.44%
takashi iwai takashi iwai 41 1.93% 3 33.33%
al viro al viro 3 0.14% 1 11.11%
david howells david howells 2 0.09% 1 11.11%
Total 2119 100.00% 9 100.00%
  Directory: sound/pcmcia/pdaudiocf

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
jaroslav kysela	jaroslav kysela	117	87.97%	3	50.00%
takashi iwai	takashi iwai	14	10.53%	2	33.33%
david howells	david howells	2	1.50%	1	16.67%
	Total	133	100.00%	6	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 sound/pcmcia/pdaudiocf/pdaudiocf_irq.c

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