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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
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8
sound/pcmcia/pdaudiocf/Makefile Normal file
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#
# Makefile for ALSA
# Copyright (c) 2004 by Jaroslav Kysela <perex@perex.cz>
#
snd-pdaudiocf-objs := pdaudiocf.o pdaudiocf_core.o pdaudiocf_irq.o pdaudiocf_pcm.o
obj-$(CONFIG_SND_PDAUDIOCF) += snd-pdaudiocf.o

303
sound/pcmcia/pdaudiocf/pdaudiocf.c Normal file
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/*
* 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 <linux/slab.h>
#include <linux/module.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>
#include "pdaudiocf.h"
#include <sound/initval.h>
#include <linux/init.h>
/*
*/
#define CARD_NAME "PDAudio-CF"
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Sound Core " CARD_NAME);
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
/*
*/
static struct snd_card *card_list[SNDRV_CARDS];
/*
* prototypes
*/
static int pdacf_config(struct pcmcia_device *link);
static void snd_pdacf_detach(struct pcmcia_device *p_dev);
static void pdacf_release(struct pcmcia_device *link)
{
free_irq(link->irq, link->priv);
pcmcia_disable_device(link);
}
/*
* destructor
*/
static int snd_pdacf_free(struct snd_pdacf *pdacf)
{
struct pcmcia_device *link = pdacf->p_dev;
pdacf_release(link);
card_list[pdacf->index] = NULL;
pdacf->card = NULL;
kfree(pdacf);
return 0;
}
static int snd_pdacf_dev_free(struct snd_device *device)
{
struct snd_pdacf *chip = device->device_data;
return snd_pdacf_free(chip);
}
/*
* snd_pdacf_attach - attach callback for cs
*/
static int snd_pdacf_probe(struct pcmcia_device *link)
{
int i, err;
struct snd_pdacf *pdacf;
struct snd_card *card;
static struct snd_device_ops ops = {
.dev_free = snd_pdacf_dev_free,
};
snd_printdd(KERN_DEBUG "pdacf_attach called\n");
/* find an empty slot from the card list */
for (i = 0; i < SNDRV_CARDS; i++) {
if (! card_list[i])
break;
}
if (i >= SNDRV_CARDS) {
snd_printk(KERN_ERR "pdacf: too many cards found\n");
return -EINVAL;
}
if (! enable[i])
return -ENODEV; /* disabled explicitly */
/* ok, create a card instance */
err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,
0, &card);
if (err < 0) {
snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
return err;
}
pdacf = snd_pdacf_create(card);
if (!pdacf) {
snd_card_free(card);
return -ENOMEM;
}
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
if (err < 0) {
kfree(pdacf);
snd_card_free(card);
return err;
}
pdacf->index = i;
card_list[i] = card;
pdacf->p_dev = link;
link->priv = pdacf;
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
link->resource[0]->end = 16;
link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
link->config_index = 1;
link->config_regs = PRESENT_OPTION;
return pdacf_config(link);
}
/**
* snd_pdacf_assign_resources - initialize the hardware and card instance.
* @port: i/o port for the card
* @irq: irq number for the card
*
* this function assigns the specified port and irq, boot the card,
* create pcm and control instances, and initialize the rest hardware.
*
* returns 0 if successful, or a negative error code.
*/
static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
{
int err;
struct snd_card *card = pdacf->card;
snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
pdacf->port = port;
pdacf->irq = irq;
pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
err = snd_pdacf_ak4117_create(pdacf);
if (err < 0)
return err;
strcpy(card->driver, "PDAudio-CF");
sprintf(card->shortname, "Core Sound %s", card->driver);
sprintf(card->longname, "%s at 0x%x, irq %i",
card->shortname, port, irq);
err = snd_pdacf_pcm_new(pdacf);
if (err < 0)
return err;
if ((err = snd_card_register(card)) < 0)
return err;
return 0;
}
/*
* snd_pdacf_detach - detach callback for cs
*/
static void snd_pdacf_detach(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "pdacf_detach called\n");
if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
snd_pdacf_powerdown(chip);
chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
snd_card_disconnect(chip->card);
snd_card_free_when_closed(chip->card);
}
/*
* configuration callback
*/
static int pdacf_config(struct pcmcia_device *link)
{
struct snd_pdacf *pdacf = link->priv;
int ret;
snd_printdd(KERN_DEBUG "pdacf_config called\n");
link->config_index = 0x5;
link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
ret = pcmcia_request_io(link);
if (ret)
goto failed_preirq;
ret = request_threaded_irq(link->irq, pdacf_interrupt,
pdacf_threaded_irq,
IRQF_SHARED, link->devname, link->priv);
if (ret)
goto failed_preirq;
ret = pcmcia_enable_device(link);
if (ret)
goto failed;
if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,
link->irq) < 0)
goto failed;
return 0;
failed:
free_irq(link->irq, link->priv);
failed_preirq:
pcmcia_disable_device(link);
return -ENODEV;
}
#ifdef CONFIG_PM
static int pdacf_suspend(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "SUSPEND\n");
if (chip) {
snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
snd_pdacf_suspend(chip);
}
return 0;
}
static int pdacf_resume(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "RESUME\n");
if (pcmcia_dev_present(link)) {
if (chip) {
snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
snd_pdacf_resume(chip);
}
}
snd_printdd(KERN_DEBUG "resume done!\n");
return 0;
}
#endif
/*
* Module entry points
*/
static const struct pcmcia_device_id snd_pdacf_ids[] = {
/* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
static struct pcmcia_driver pdacf_cs_driver = {
.owner = THIS_MODULE,
.name = "snd-pdaudiocf",
.probe = snd_pdacf_probe,
.remove = snd_pdacf_detach,
.id_table = snd_pdacf_ids,
#ifdef CONFIG_PM
.suspend = pdacf_suspend,
.resume = pdacf_resume,
#endif
};
module_pcmcia_driver(pdacf_cs_driver);

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sound/pcmcia/pdaudiocf/pdaudiocf.h Normal file
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/*
* Driver for Sound Cors 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
*/
#ifndef __PDAUDIOCF_H
#define __PDAUDIOCF_H
#include <sound/pcm.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <sound/ak4117.h>
/* PDAUDIOCF registers */
#define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */
#define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */
#define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */
#define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */
#define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */
#define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */
#define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */
#define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */
/* PDAUDIOCF_REG_TCR */
#define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */
#define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */
/* PDAUDIOCF_REG_SCR */
#define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */
#define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */
#define PDAUDIOCF_PDN (1<<3) /* power down bit */
#define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */
#define PDAUDIOCF_CLKDIV1 (1<<5)
#define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */
#define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */
#define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */
#define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */
#define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */
#define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */
#define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */
/* PDAUDIOCF_REG_ISR */
#define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */
#define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */
#define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */
/* PDAUDIOCF_REG_IER */
#define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */
#define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */
#define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */
#define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */
#define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */
#define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */
#define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */
#define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */
#define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */
#define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */
#define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */
#define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */
/* chip status */
#define PDAUDIOCF_STAT_IS_STALE (1<<0)
#define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1)
#define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2)
struct snd_pdacf {
struct snd_card *card;
int index;
unsigned long port;
int irq;
struct mutex reg_lock;
unsigned short regmap[8];
unsigned short suspend_reg_scr;
spinlock_t ak4117_lock;
struct ak4117 *ak4117;
unsigned int chip_status;
struct snd_pcm *pcm;
struct snd_pcm_substream *pcm_substream;
unsigned int pcm_running: 1;
unsigned int pcm_channels;
unsigned int pcm_swab;
unsigned int pcm_little;
unsigned int pcm_frame;
unsigned int pcm_sample;
unsigned int pcm_xor;
unsigned int pcm_size;
unsigned int pcm_period;
unsigned int pcm_tdone;
unsigned int pcm_hwptr;
void *pcm_area;
/* pcmcia stuff */
struct pcmcia_device *p_dev;
};
static inline void pdacf_reg_write(struct snd_pdacf *chip, unsigned char reg, unsigned short val)
{
outw(chip->regmap[reg>>1] = val, chip->port + reg);
}
static inline unsigned short pdacf_reg_read(struct snd_pdacf *chip, unsigned char reg)
{
return inw(chip->port + reg);
}
struct snd_pdacf *snd_pdacf_create(struct snd_card *card);
int snd_pdacf_ak4117_create(struct snd_pdacf *pdacf);
void snd_pdacf_powerdown(struct snd_pdacf *chip);
#ifdef CONFIG_PM
int snd_pdacf_suspend(struct snd_pdacf *chip);
int snd_pdacf_resume(struct snd_pdacf *chip);
#endif
int snd_pdacf_pcm_new(struct snd_pdacf *chip);
irqreturn_t pdacf_interrupt(int irq, void *dev);
irqreturn_t pdacf_threaded_irq(int irq, void *dev);
void pdacf_reinit(struct snd_pdacf *chip, int resume);
#endif /* __PDAUDIOCF_H */

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sound/pcmcia/pdaudiocf/pdaudiocf_core.c Normal file
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/*
* 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 <linux/delay.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/info.h>
#include "pdaudiocf.h"
#include <sound/initval.h>
/*
*
*/
static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
{
struct snd_pdacf *chip = private_data;
unsigned long timeout;
unsigned long flags;
unsigned char res;
spin_lock_irqsave(&chip->ak4117_lock, flags);
timeout = 1000;
while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
udelay(5);
if (--timeout == 0) {
spin_unlock_irqrestore(&chip->ak4117_lock, flags);
snd_printk(KERN_ERR "AK4117 ready timeout (read)\n");
return 0;
}
}
pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
timeout = 1000;
while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
udelay(5);
if (--timeout == 0) {
spin_unlock_irqrestore(&chip->ak4117_lock, flags);
snd_printk(KERN_ERR "AK4117 read timeout (read2)\n");
return 0;
}
}
res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
spin_unlock_irqrestore(&chip->ak4117_lock, flags);
return res;
}
static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
{
struct snd_pdacf *chip = private_data;
unsigned long timeout;
unsigned long flags;
spin_lock_irqsave(&chip->ak4117_lock, flags);
timeout = 1000;
while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
udelay(5);
if (--timeout == 0) {
spin_unlock_irqrestore(&chip->ak4117_lock, flags);
snd_printk(KERN_ERR "AK4117 ready timeout (write)\n");
return;
}
}
outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
spin_unlock_irqrestore(&chip->ak4117_lock, flags);
}
#if 0
void pdacf_dump(struct snd_pdacf *chip)
{
printk(KERN_DEBUG "PDAUDIOCF DUMP (0x%lx):\n", chip->port);
printk(KERN_DEBUG "WPD : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_WDP));
printk(KERN_DEBUG "RDP : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_RDP));
printk(KERN_DEBUG "TCR : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_TCR));
printk(KERN_DEBUG "SCR : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_SCR));
printk(KERN_DEBUG "ISR : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_ISR));
printk(KERN_DEBUG "IER : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_IER));
printk(KERN_DEBUG "AK_IFR : 0x%x\n",
inw(chip->port + PDAUDIOCF_REG_AK_IFR));
}
#endif
static int pdacf_reset(struct snd_pdacf *chip, int powerdown)
{
u16 val;
val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
val |= PDAUDIOCF_PDN;
val &= ~PDAUDIOCF_RECORD; /* for sure */
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
udelay(5);
val |= PDAUDIOCF_RST;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
udelay(200);
val &= ~PDAUDIOCF_RST;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
udelay(5);
if (!powerdown) {
val &= ~PDAUDIOCF_PDN;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
udelay(200);
}
return 0;
}
void pdacf_reinit(struct snd_pdacf *chip, int resume)
{
pdacf_reset(chip, 0);
if (resume)
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr);
snd_ak4117_reinit(chip->ak4117);
pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]);
pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]);
}
static void pdacf_proc_read(struct snd_info_entry * entry,
struct snd_info_buffer *buffer)
{
struct snd_pdacf *chip = entry->private_data;
u16 tmp;
snd_iprintf(buffer, "PDAudioCF\n\n");
tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
snd_iprintf(buffer, "FPGA revision : 0x%x\n", PDAUDIOCF_FPGAREV(tmp));
}
static void pdacf_proc_init(struct snd_pdacf *chip)
{
struct snd_info_entry *entry;
if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry))
snd_info_set_text_ops(entry, chip, pdacf_proc_read);
}
struct snd_pdacf *snd_pdacf_create(struct snd_card *card)
{
struct snd_pdacf *chip;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return NULL;
chip->card = card;
mutex_init(&chip->reg_lock);
spin_lock_init(&chip->ak4117_lock);
card->private_data = chip;
pdacf_proc_init(chip);
return chip;
}
static void snd_pdacf_ak4117_change(struct ak4117 *ak4117, unsigned char c0, unsigned char c1)
{
struct snd_pdacf *chip = ak4117->change_callback_private;
u16 val;
if (!(c0 & AK4117_UNLCK))
return;
mutex_lock(&chip->reg_lock);
val = chip->regmap[PDAUDIOCF_REG_SCR>>1];
if (ak4117->rcs0 & AK4117_UNLCK)
val |= PDAUDIOCF_BLUE_LED_OFF;
else
val &= ~PDAUDIOCF_BLUE_LED_OFF;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
mutex_unlock(&chip->reg_lock);
}
int snd_pdacf_ak4117_create(struct snd_pdacf *chip)
{
int err;
u16 val;
/* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */
/* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */
/* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */
/* high-rate sources */
static unsigned char pgm[5] = {
AK4117_XTL_24_576M | AK4117_EXCT, /* AK4117_REG_PWRDN */
AK4117_CM_PLL_XTAL | AK4117_PKCS_128fs | AK4117_XCKS_128fs, /* AK4117_REQ_CLOCK */
AK4117_EFH_1024LRCLK | AK4117_DIF_24R | AK4117_IPS, /* AK4117_REG_IO */
0xff, /* AK4117_REG_INT0_MASK */
AK4117_MAUTO | AK4117_MAUD | AK4117_MULK | AK4117_MPAR | AK4117_MV, /* AK4117_REG_INT1_MASK */
};
err = pdacf_reset(chip, 0);
if (err < 0)
return err;
err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117);
if (err < 0)
return err;
val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR);
#if 1 /* normal operation */
val &= ~(PDAUDIOCF_ELIMAKMBIT|PDAUDIOCF_TESTDATASEL);
#else /* debug */
val |= PDAUDIOCF_ELIMAKMBIT;
val &= ~PDAUDIOCF_TESTDATASEL;
#endif
pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val);
/* setup the FPGA to match AK4117 setup */
val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
val &= ~(PDAUDIOCF_CLKDIV0 | PDAUDIOCF_CLKDIV1); /* use 24.576Mhz clock */
val &= ~(PDAUDIOCF_RED_LED_OFF|PDAUDIOCF_BLUE_LED_OFF);
val |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1; /* 24-bit data */
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
/* setup LEDs and IRQ */
val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
val &= ~(PDAUDIOCF_IRQLVLEN0 | PDAUDIOCF_IRQLVLEN1);
val &= ~(PDAUDIOCF_BLUEDUTY0 | PDAUDIOCF_REDDUTY0 | PDAUDIOCF_REDDUTY1);
val |= PDAUDIOCF_BLUEDUTY1 | PDAUDIOCF_HALFRATE;
val |= PDAUDIOCF_IRQOVREN | PDAUDIOCF_IRQAKMEN;
pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
chip->ak4117->change_callback_private = chip;
chip->ak4117->change_callback = snd_pdacf_ak4117_change;
/* update LED status */
snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0);
return 0;
}
void snd_pdacf_powerdown(struct snd_pdacf *chip)
{
u16 val;
val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
chip->suspend_reg_scr = val;
val |= PDAUDIOCF_RED_LED_OFF | PDAUDIOCF_BLUE_LED_OFF;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
val = inw(chip->port + PDAUDIOCF_REG_IER);
val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
outw(val, chip->port + PDAUDIOCF_REG_IER);
pdacf_reset(chip, 1);
}
#ifdef CONFIG_PM
int snd_pdacf_suspend(struct snd_pdacf *chip)
{
u16 val;
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
val = inw(chip->port + PDAUDIOCF_REG_IER);
val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
outw(val, chip->port + PDAUDIOCF_REG_IER);
chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED; /* ignore interrupts from now */
snd_pdacf_powerdown(chip);
return 0;
}
static inline int check_signal(struct snd_pdacf *chip)
{
return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
}
int snd_pdacf_resume(struct snd_pdacf *chip)
{
int timeout = 40;
pdacf_reinit(chip, 1);
/* wait for AK4117's PLL */
while (timeout-- > 0 &&
(snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip)))
mdelay(1);
chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED;
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif

326
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/*
* 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;
}
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;
}

308
sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c Normal file
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/*
* Driver for Sound Core PDAudioCF soundcards
*
* PCM part
*
* 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 <linux/delay.h>
#include <sound/core.h>
#include <sound/asoundef.h>
#include "pdaudiocf.h"
/*
* clear the SRAM contents
*/
static int pdacf_pcm_clear_sram(struct snd_pdacf *chip)
{
int max_loop = 64 * 1024;
while (inw(chip->port + PDAUDIOCF_REG_RDP) != inw(chip->port + PDAUDIOCF_REG_WDP)) {
if (max_loop-- < 0)
return -EIO;
inw(chip->port + PDAUDIOCF_REG_MD);
}
return 0;
}
/*
* pdacf_pcm_trigger - trigger callback for capture
*/
static int pdacf_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
{
struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
struct snd_pcm_runtime *runtime = subs->runtime;
int inc, ret = 0, rate;
unsigned short mask, val, tmp;
if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
return -EBUSY;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
chip->pcm_hwptr = 0;
chip->pcm_tdone = 0;
/* fall thru */
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
mask = 0;
val = PDAUDIOCF_RECORD;
inc = 1;
rate = snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_STAT|AK4117_CHECK_NO_RATE);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
mask = PDAUDIOCF_RECORD;
val = 0;
inc = -1;
rate = 0;
break;
default:
return -EINVAL;
}
mutex_lock(&chip->reg_lock);
chip->pcm_running += inc;
tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
if (chip->pcm_running) {
if ((chip->ak4117->rcs0 & AK4117_UNLCK) || runtime->rate != rate) {
chip->pcm_running -= inc;
ret = -EIO;
goto __end;
}
}
tmp &= ~mask;
tmp |= val;
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, tmp);
__end:
mutex_unlock(&chip->reg_lock);
snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_RATE);
return ret;
}
/*
* pdacf_pcm_hw_params - hw_params callback for playback and capture
*/
static int pdacf_pcm_hw_params(struct snd_pcm_substream *subs,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_alloc_vmalloc_32_buffer
(subs, params_buffer_bytes(hw_params));
}
/*
* pdacf_pcm_hw_free - hw_free callback for playback and capture
*/
static int pdacf_pcm_hw_free(struct snd_pcm_substream *subs)
{
return snd_pcm_lib_free_vmalloc_buffer(subs);
}
/*
* pdacf_pcm_prepare - prepare callback for playback and capture
*/
static int pdacf_pcm_prepare(struct snd_pcm_substream *subs)
{
struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
struct snd_pcm_runtime *runtime = subs->runtime;
u16 val, nval, aval;
if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
return -EBUSY;
chip->pcm_channels = runtime->channels;
chip->pcm_little = snd_pcm_format_little_endian(runtime->format) > 0;
#ifdef SNDRV_LITTLE_ENDIAN
chip->pcm_swab = snd_pcm_format_big_endian(runtime->format) > 0;
#else
chip->pcm_swab = chip->pcm_little;
#endif
if (snd_pcm_format_unsigned(runtime->format))
chip->pcm_xor = 0x80008000;
if (pdacf_pcm_clear_sram(chip) < 0)
return -EIO;
val = nval = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
nval &= ~(PDAUDIOCF_DATAFMT0|PDAUDIOCF_DATAFMT1);
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
case SNDRV_PCM_FORMAT_S16_BE:
break;
default: /* 24-bit */
nval |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1;
break;
}
aval = 0;
chip->pcm_sample = 4;
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
case SNDRV_PCM_FORMAT_S16_BE:
aval = AK4117_DIF_16R;
chip->pcm_frame = 2;
chip->pcm_sample = 2;
break;
case SNDRV_PCM_FORMAT_S24_3LE:
case SNDRV_PCM_FORMAT_S24_3BE:
chip->pcm_sample = 3;
/* fall through */
default: /* 24-bit */
aval = AK4117_DIF_24R;
chip->pcm_frame = 3;
chip->pcm_xor &= 0xffff0000;
break;
}
if (val != nval) {
snd_ak4117_reg_write(chip->ak4117, AK4117_REG_IO, AK4117_DIF2|AK4117_DIF1|AK4117_DIF0, aval);
pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, nval);
}
val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
val &= ~(PDAUDIOCF_IRQLVLEN1);
val |= PDAUDIOCF_IRQLVLEN0;
pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
chip->pcm_size = runtime->buffer_size;
chip->pcm_period = runtime->period_size;
chip->pcm_area = runtime->dma_area;
return 0;
}
/*
* capture hw information
*/
static struct snd_pcm_hardware pdacf_pcm_capture_hw = {
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BATCH),
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
.rates = SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000 |
SNDRV_PCM_RATE_176400 |
SNDRV_PCM_RATE_192000,
.rate_min = 32000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (512*1024),
.period_bytes_min = 8*1024,
.period_bytes_max = (64*1024),
.periods_min = 2,
.periods_max = 128,
.fifo_size = 0,
};
/*
* pdacf_pcm_capture_open - open callback for capture
*/
static int pdacf_pcm_capture_open(struct snd_pcm_substream *subs)
{
struct snd_pcm_runtime *runtime = subs->runtime;
struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
return -EBUSY;
runtime->hw = pdacf_pcm_capture_hw;
runtime->private_data = chip;
chip->pcm_substream = subs;
return 0;
}
/*
* pdacf_pcm_capture_close - close callback for capture
*/
static int pdacf_pcm_capture_close(struct snd_pcm_substream *subs)
{
struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
if (!chip)
return -EINVAL;
pdacf_reinit(chip, 0);
chip->pcm_substream = NULL;
return 0;
}
/*
* pdacf_pcm_capture_pointer - pointer callback for capture
*/
static snd_pcm_uframes_t pdacf_pcm_capture_pointer(struct snd_pcm_substream *subs)
{
struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
return chip->pcm_hwptr;
}
/*
* operators for PCM capture
*/
static struct snd_pcm_ops pdacf_pcm_capture_ops = {
.open = pdacf_pcm_capture_open,
.close = pdacf_pcm_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = pdacf_pcm_hw_params,
.hw_free = pdacf_pcm_hw_free,
.prepare = pdacf_pcm_prepare,
.trigger = pdacf_pcm_trigger,
.pointer = pdacf_pcm_capture_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
.mmap = snd_pcm_lib_mmap_vmalloc,
};
/*
* snd_pdacf_pcm_new - create and initialize a pcm
*/
int snd_pdacf_pcm_new(struct snd_pdacf *chip)
{
struct snd_pcm *pcm;
int err;
err = snd_pcm_new(chip->card, "PDAudioCF", 0, 0, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pdacf_pcm_capture_ops);
pcm->private_data = chip;
pcm->info_flags = 0;
pcm->nonatomic = true;
strcpy(pcm->name, chip->card->shortname);
chip->pcm = pcm;
err = snd_ak4117_build(chip->ak4117, pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
if (err < 0)
return err;
return 0;
}