mirror of https://gitee.com/openkylin/linux.git
314 lines
8.4 KiB
C
314 lines
8.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Driver for Sound Core PDAudioCF soundcard
|
|
*
|
|
* Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
|
|
*/
|
|
|
|
#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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|