Update of /cvsroot/alsa/alsa-kernel/pcmcia/pdaudiocf
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv23986/pcmcia/pdaudiocf
Added Files:
Makefile pdaudiocf.c pdaudiocf.h pdaudiocf_core.c
pdaudiocf_irq.c pdaudiocf_pcm.c
Log Message:
Added Sound Core PDAudioCF driver
--- NEW FILE: Makefile ---
#
# Makefile for ALSA
# Copyright (c) 2004 by Jaroslav Kysela <[EMAIL PROTECTED]>
#
snd-pdaudiocf-objs := pdaudiocf.o pdaudiocf_core.o pdaudiocf_irq.o pdaudiocf_pcm.o
obj-$(CONFIG_SND_PDAUDIOCF) += snd-pdaudiocf.o
--- NEW FILE: pdaudiocf.c ---
/*
* Driver for Sound Core PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <[EMAIL PROTECTED]>
*
* 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/driver.h>
#include <sound/core.h>
#include <linux/slab.h>
#include <pcmcia/version.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>
#include "pdaudiocf.h"
#define SNDRV_GET_ID
#include <sound/initval.h>
/*
*/
#define CARD_NAME "PDAudio-CF"
MODULE_AUTHOR("Jaroslav Kysela <[EMAIL PROTECTED]>");
MODULE_DESCRIPTION("Sound Core " CARD_NAME);
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{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 int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
static unsigned int irq_mask = 0xffff;
static int irq_list[4] = { -1 };
MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
MODULE_PARM(irq_mask, "i");
MODULE_PARM_DESC(irq_mask, "IRQ bitmask for " CARD_NAME " soundcard.");
MODULE_PARM(irq_list, "1-4i");
MODULE_PARM_DESC(irq_list, "List of Available interrupts for " CARD_NAME "
soundcard.");
/*
*/
static dev_info_t dev_info = "snd-pdaudiocf";
static snd_card_t *card_list[SNDRV_CARDS];
static dev_link_t *dev_list;
/*
* prototypes
*/
static void pdacf_config(dev_link_t *link);
static int pdacf_event(event_t event, int priority, event_callback_args_t *args);
static void snd_pdacf_detach(dev_link_t *link);
static void pdacf_release(dev_link_t *link)
{
if (link->state & DEV_CONFIG) {
/* release cs resources */
CardServices(ReleaseConfiguration, link->handle);
CardServices(ReleaseIO, link->handle, &link->io);
CardServices(ReleaseIRQ, link->handle, &link->irq);
link->state &= ~DEV_CONFIG;
}
}
/*
* destructor
*/
static int snd_pdacf_free(pdacf_t *pdacf)
{
dev_link_t *link = &pdacf->link;
pdacf_release(link);
/* Break the link with Card Services */
if (link->handle)
CardServices(DeregisterClient, link->handle);
card_list[pdacf->index] = NULL;
pdacf->card = NULL;
snd_magic_kfree(pdacf);
return 0;
}
static int snd_pdacf_dev_free(snd_device_t *device)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, device->device_data, return -ENXIO);
return snd_pdacf_free(chip);
}
/*
* snd_pdacf_attach - attach callback for cs
*/
static dev_link_t *snd_pdacf_attach(void)
{
client_reg_t client_reg; /* Register with cardmgr */
dev_link_t *link; /* Info for cardmgr */
int i, ret;
pdacf_t *pdacf;
snd_card_t *card;
static snd_device_ops_t 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 NULL;
}
if (! enable[i])
return NULL; /* disabled explicitly */
/* ok, create a card instance */
card = snd_card_new(index[i], id[i], THIS_MODULE, 0);
if (card == NULL) {
snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
return NULL;
}
pdacf = snd_pdacf_create(card);
if (! pdacf)
return NULL;
if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) {
snd_magic_kfree(pdacf);
snd_card_free(card);
return NULL;
}
pdacf->index = i;
card_list[i] = card;
link = &pdacf->link;
link->priv = pdacf;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.NumPorts1 = 16;
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT |
IRQ_FORCED_PULSE;
// link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
link->irq.IRQInfo1 = IRQ_INFO2_VALID /* | IRQ_LEVEL_ID */;
if (irq_list[0] == -1)
link->irq.IRQInfo2 = irq_mask;
else
for (i = 0; i < 4; i++)
link->irq.IRQInfo2 |= 1 << irq_list[i];
link->irq.Handler = pdacf_interrupt;
link->irq.Instance = pdacf;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
link->conf.Present = PRESENT_OPTION;
/* Chain drivers */
link->next = dev_list;
dev_list = link;
/* Register with Card Services */
client_reg.dev_info = &dev_info;
client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL
#ifdef CONFIG_PM
| CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET
| CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME
#endif
;
client_reg.event_handler = &pdacf_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
ret = CardServices(RegisterClient, &link->handle, &client_reg);
if (ret != CS_SUCCESS) {
cs_error(link->handle, RegisterClient, ret);
snd_pdacf_detach(link);
return NULL;
}
return 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(pdacf_t *pdacf, int port, int irq)
{
int err;
snd_card_t *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;
err = snd_pdacf_pcm_new(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);
#ifdef CONFIG_PM
card->power_state_private_data = pdacf;
card->set_power_state = snd_pdacf_set_power_state;
#endif
if ((err = snd_card_register(card)) < 0)
return err;
return 0;
}
/*
* snd_pdacf_detach - detach callback for cs
*/
static void snd_pdacf_detach(dev_link_t *link)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, link->priv, return);
snd_printdd(KERN_DEBUG "pdacf_detach called\n");
/* Remove the interface data from the linked list */
{
dev_link_t **linkp;
/* Locate device structure */
for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
if (*linkp == link)
break;
if (*linkp)
*linkp = link->next;
}
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_in_thread(chip->card);
}
/*
* snd_pdacf_detach_all - detach all instances linked to the hw
*/
static void snd_pdacf_detach_all(void)
{
while (dev_list != NULL)
snd_pdacf_detach(dev_list);
}
/*
* configuration callback
*/
#define CS_CHECK(fn, args...) \
while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
static void pdacf_config(dev_link_t *link)
{
client_handle_t handle = link->handle;
pdacf_t *pdacf = snd_magic_cast(pdacf_t, link->priv, return);
tuple_t tuple;
cisparse_t parse;
config_info_t conf;
u_short buf[32];
int last_fn, last_ret;
snd_printdd(KERN_DEBUG "pdacf_config called\n");
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
tuple.Attributes = 0;
tuple.TupleData = (cisdata_t *)buf;
tuple.TupleDataMax = sizeof(buf);
tuple.TupleOffset = 0;
tuple.DesiredTuple = CISTPL_CONFIG;
CS_CHECK(GetFirstTuple, handle, &tuple);
CS_CHECK(GetTupleData, handle, &tuple);
CS_CHECK(ParseTuple, handle, &tuple, &parse);
link->conf.ConfigBase = parse.config.base;
link->conf.ConfigIndex = 0x5;
CS_CHECK(GetConfigurationInfo, handle, &conf);
link->conf.Vcc = conf.Vcc;
/* Configure card */
link->state |= DEV_CONFIG;
CS_CHECK(RequestIO, handle, &link->io);
CS_CHECK(RequestIRQ, link->handle, &link->irq);
CS_CHECK(RequestConfiguration, link->handle, &link->conf);
if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1,
link->irq.AssignedIRQ) < 0)
goto failed;
link->dev = &pdacf->node;
link->state &= ~DEV_CONFIG_PENDING;
return;
cs_failed:
cs_error(link->handle, last_fn, last_ret);
failed:
CardServices(ReleaseConfiguration, link->handle);
CardServices(ReleaseIO, link->handle, &link->io);
CardServices(ReleaseIRQ, link->handle, &link->irq);
}
/*
* event callback
*/
static int pdacf_event(event_t event, int priority, event_callback_args_t *args)
{
dev_link_t *link = args->client_data;
pdacf_t *chip = link->priv;
switch (event) {
case CS_EVENT_CARD_REMOVAL:
snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n");
link->state &= ~DEV_PRESENT;
if (link->state & DEV_CONFIG) {
chip->chip_status |= PDAUDIOCF_STAT_IS_STALE;
}
break;
case CS_EVENT_CARD_INSERTION:
snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");
link->state |= DEV_PRESENT;
pdacf_config(link);
break;
#ifdef CONFIG_PM
case CS_EVENT_PM_SUSPEND:
snd_printdd(KERN_DEBUG "SUSPEND\n");
link->state |= DEV_SUSPEND;
if (chip) {
snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
snd_pdacf_suspend(chip);
}
/* Fall through... */
case CS_EVENT_RESET_PHYSICAL:
snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n");
if (link->state & DEV_CONFIG)
CardServices(ReleaseConfiguration, link->handle);
break;
case CS_EVENT_PM_RESUME:
snd_printdd(KERN_DEBUG "RESUME\n");
link->state &= ~DEV_SUSPEND;
/* Fall through... */
case CS_EVENT_CARD_RESET:
snd_printdd(KERN_DEBUG "CARD_RESET\n");
if (DEV_OK(link)) {
snd_printdd(KERN_DEBUG "requestconfig...\n");
CardServices(RequestConfiguration, link->handle, &link->conf);
if (chip) {
snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
snd_pdacf_resume(chip);
}
}
snd_printdd(KERN_DEBUG "resume done!\n");
break;
#endif
}
return 0;
}
/*
* Module entry points
*/
static struct pcmcia_driver pdacf_cs_driver = {
.owner = THIS_MODULE,
.drv = {
.name = "snd-pdaudiocf",
},
.attach = snd_pdacf_attach,
.detach = snd_pdacf_detach
};
static int __init init_pdacf(void)
{
return pcmcia_register_driver(&pdacf_cs_driver);
}
static void __exit exit_pdacf(void)
{
pcmcia_unregister_driver(&pdacf_cs_driver);
snd_pdacf_detach_all();
}
module_init(init_pdacf);
module_exit(exit_pdacf);
--- NEW FILE: pdaudiocf.h ---
/*
* Driver for Sound Cors PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <[EMAIL PROTECTED]>
*
* 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 <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include "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)
typedef struct {
snd_card_t *card;
int index;
unsigned long port;
int irq;
spinlock_t reg_lock;
unsigned short regmap[8];
unsigned short suspend_reg_scr;
struct tasklet_struct tq;
spinlock_t ak4117_lock;
ak4117_t *ak4117;
unsigned int chip_status;
snd_pcm_t *pcm;
snd_pcm_substream_t *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 */
dev_link_t link;
dev_node_t node;
} pdacf_t;
static inline void pdacf_reg_write(pdacf_t *chip, unsigned char reg, unsigned short
val)
{
outw(chip->regmap[reg>>1] = val, chip->port + reg);
}
static inline unsigned short pdacf_reg_read(pdacf_t *chip, unsigned char reg)
{
return inw(chip->port + reg);
}
unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg);
void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val);
pdacf_t *snd_pdacf_create(snd_card_t *card);
int snd_pdacf_ak4117_create(pdacf_t *pdacf);
void snd_pdacf_powerdown(pdacf_t *chip);
#ifdef CONFIG_PM
void snd_pdacf_suspend(pdacf_t *chip);
void snd_pdacf_resume(pdacf_t *chip);
int snd_pdacf_set_power_state(snd_card_t *card, unsigned int power_state);
#endif
int snd_pdacf_pcm_new(pdacf_t *chip);
void pdacf_interrupt(int irq, void *dev, struct pt_regs *regs);
void pdacf_tasklet(unsigned long private_data);
void pdacf_reinit(pdacf_t *chip, int resume);
#endif /* __PDAUDIOCF_H */
--- NEW FILE: pdaudiocf_core.c ---
/*
* Driver for Sound Core PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <[EMAIL PROTECTED]>
*
* 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/driver.h>
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/info.h>
#include "pdaudiocf.h"
#define SNDRV_GET_ID
#include <sound/initval.h>
/*
*
*/
unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, private_data, return 0);
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;
}
void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, private_data, return);
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(pdacf_t *chip)
{
printk("PDAUDIOCF DUMP (0x%lx):\n", chip->port);
printk("WPD : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_WDP));
printk("RDP : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_RDP));
printk("TCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_TCR));
printk("SCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_SCR));
printk("ISR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_ISR));
printk("IER : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_IER));
printk("AK_IFR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_AK_IFR));
}
#endif
static int pdacf_reset(pdacf_t *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(pdacf_t *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(snd_info_entry_t * entry,
snd_info_buffer_t * buffer)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, entry->private_data, return);
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(pdacf_t *chip)
{
snd_info_entry_t *entry;
if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry))
snd_info_set_text_ops(entry, chip, 1024, pdacf_proc_read);
}
pdacf_t *snd_pdacf_create(snd_card_t *card)
{
pdacf_t *chip;
chip = snd_magic_kcalloc(pdacf_t, 0, GFP_KERNEL);
if (chip == NULL)
return NULL;
chip->card = card;
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->ak4117_lock);
tasklet_init(&chip->tq, pdacf_tasklet, (unsigned long)chip);
card->private_data = chip;
pdacf_proc_init(chip);
return chip;
}
static void snd_pdacf_ak4117_change(ak4117_t *ak4117, unsigned char c0, unsigned char
c1)
{
pdacf_t *chip = ak4117->change_callback_private;
unsigned long flags;
u16 val;
if (!(c0 & AK4117_UNLCK))
return;
spin_lock_irqsave(&chip->reg_lock, flags);
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);
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
int snd_pdacf_ak4117_create(pdacf_t *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(pdacf_t *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
void snd_pdacf_suspend(pdacf_t *chip)
{
snd_card_t *card = chip->card;
u16 val;
if (card->power_state == SNDRV_CTL_POWER_D3hot)
return;
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);
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
}
static inline int check_signal(pdacf_t *chip)
{
return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
}
void snd_pdacf_resume(pdacf_t *chip)
{
snd_card_t *card = chip->card;
int timeout = 40;
if (card->power_state == SNDRV_CTL_POWER_D0)
return;
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(card, SNDRV_CTL_POWER_D0);
}
int snd_pdacf_set_power_state(snd_card_t *card, unsigned int power_state)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, card->power_state_private_data, return
-ENXIO);
switch (power_state) {
case SNDRV_CTL_POWER_D0:
case SNDRV_CTL_POWER_D1:
case SNDRV_CTL_POWER_D2:
snd_pdacf_resume(chip);
break;
case SNDRV_CTL_POWER_D3hot:
case SNDRV_CTL_POWER_D3cold:
snd_pdacf_suspend(chip);
break;
default:
return -EINVAL;
}
return 0;
}
#endif
--- NEW FILE: pdaudiocf_irq.c ---
/*
* Driver for Sound Core PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <[EMAIL PROTECTED]>
*
* 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/driver.h>
#include <sound/core.h>
#include "pdaudiocf.h"
#define SNDRV_GET_ID
#include <sound/initval.h>
/*
*
*/
void pdacf_interrupt(int irq, void *dev, struct pt_regs *regs)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, dev, return);
unsigned short stat;
if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|
PDAUDIOCF_STAT_IS_CONFIGURED|
PDAUDIOCF_STAT_IS_SUSPENDED)) !=
PDAUDIOCF_STAT_IS_CONFIGURED)
return;
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)
tasklet_hi_schedule(&chip->tq);
if (!(stat & PDAUDIOCF_IRQAKM))
stat |= PDAUDIOCF_IRQAKM; /* check rate */
}
if (regs != NULL)
snd_ak4117_check_rate_and_errors(chip->ak4117, 0);
}
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(pdacf_t *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);
}
}
}
}
void pdacf_tasklet(unsigned long private_data)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, (void *)private_data, return);
int size, off, cont, rdp, wdp;
if ((chip->chip_status &
(PDAUDIOCF_STAT_IS_STALE|PDAUDIOCF_STAT_IS_CONFIGURED)) !=
PDAUDIOCF_STAT_IS_CONFIGURED)
return;
if (chip->pcm_substream == NULL || chip->pcm_substream->runtime == NULL ||
!snd_pcm_running(chip->pcm_substream))
return;
(unsigned int)rdp = inw(chip->port + PDAUDIOCF_REG_RDP);
(unsigned int)wdp = inw(chip->port + PDAUDIOCF_REG_WDP);
// printk("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
spin_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;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(chip->pcm_substream);
spin_lock(&chip->reg_lock);
}
spin_unlock(&chip->reg_lock);
// printk("TASKLET: end\n");
}
--- NEW FILE: pdaudiocf_pcm.c ---
/*
* Driver for Sound Core PDAudioCF soundcards
*
* PCM part
*
* Copyright (c) 2003 by Jaroslav Kysela <[EMAIL PROTECTED]>
*
* 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/driver.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/asoundef.h>
#include "pdaudiocf.h"
#define chip_t pdacf_t
/*
* we use a vmalloc'ed (sg-)buffer
*/
/* get the physical page pointer on the given offset */
static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs, unsigned long
offset)
{
void *pageptr = subs->runtime->dma_area + offset;
return vmalloc_to_page(pageptr);
}
/*
* hw_params callback
* NOTE: this may be called not only once per pcm open!
*/
static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
{
snd_pcm_runtime_t *runtime = subs->runtime;
if (runtime->dma_area) {
if (runtime->dma_bytes >= size)
return 0; /* already enough large */
vfree_nocheck(runtime->dma_area);
}
runtime->dma_area = vmalloc_nocheck(size);
if (! runtime->dma_area)
return -ENOMEM;
runtime->dma_bytes = size;
return 0;
}
/*
* hw_free callback
* NOTE: this may be called not only once per pcm open!
*/
static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
{
snd_pcm_runtime_t *runtime = subs->runtime;
if (runtime->dma_area) {
vfree_nocheck(runtime->dma_area);
runtime->dma_area = NULL;
}
return 0;
}
/*
* clear the SRAM contents
*/
static int pdacf_pcm_clear_sram(pdacf_t *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(snd_pcm_substream_t *subs, int cmd)
{
pdacf_t *chip = snd_pcm_substream_chip(subs);
snd_pcm_runtime_t *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;
}
spin_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:
spin_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(snd_pcm_substream_t *subs,
snd_pcm_hw_params_t *hw_params)
{
return snd_pcm_alloc_vmalloc_buffer(subs, params_buffer_bytes(hw_params));
}
/*
* pdacf_pcm_hw_free - hw_free callback for playback and capture
*/
static int pdacf_pcm_hw_free(snd_pcm_substream_t *subs)
{
return snd_pcm_free_vmalloc_buffer(subs);
}
/*
* pdacf_pcm_prepare - prepare callback for playback and capture
*/
static int pdacf_pcm_prepare(snd_pcm_substream_t *subs)
{
pdacf_t *chip = snd_pcm_substream_chip(subs);
snd_pcm_runtime_t *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 trough */
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 snd_pcm_hardware_t 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),
.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(snd_pcm_substream_t *subs)
{
snd_pcm_runtime_t *runtime = subs->runtime;
pdacf_t *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(snd_pcm_substream_t *subs)
{
pdacf_t *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(snd_pcm_substream_t *subs)
{
pdacf_t *chip = snd_pcm_substream_chip(subs);
return chip->pcm_hwptr;
}
/*
* operators for PCM capture
*/
static snd_pcm_ops_t 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_get_vmalloc_page,
};
/*
* free callback for pcm
*/
static void snd_pdacf_pcm_free(snd_pcm_t *pcm)
{
pdacf_t *chip = snd_magic_cast(pdacf_t, pcm->private_data, return);
chip->pcm = NULL;
}
/*
* snd_pdacf_pcm_new - create and initialize a pcm
*/
int snd_pdacf_pcm_new(pdacf_t *chip)
{
snd_pcm_t *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->private_free = snd_pdacf_pcm_free;
pcm->info_flags = 0;
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;
}
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