blob: a77d4cc44028a9f0c5d42c67c2e2ed2899b87051 [file] [log] [blame]
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Abramo Bagnara <abramo@alsa-project.org>
* Cirrus Logic, Inc.
* Routines for control of Cirrus Logic CS461x chips
*
* KNOWN BUGS:
* - Sometimes the SPDIF input DSP tasks get's unsynchronized
* and the SPDIF get somewhat "distorcionated", or/and left right channel
* are swapped. To get around this problem when it happens, mute and unmute
* the SPDIF input mixer control.
* - On the Hercules Game Theater XP the amplifier are sometimes turned
* off on inadecuate moments which causes distorcions on sound.
*
* TODO:
* - Secondary CODEC on some soundcards
* - SPDIF input support for other sample rates then 48khz
* - Posibility to mix the SPDIF output with analog sources.
* - PCM channels for Center and LFE on secondary codec
*
* NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
* is default configuration), no SPDIF, no secondary codec, no
* multi channel PCM. But known to work.
*
* FINALLY: A credit to the developers Tom and Jordan
* at Cirrus for have helping me out with the DSP, however we
* still don't have sufficient documentation and technical
* references to be able to implement all fancy feutures
* supported by the cs46xx DSP's.
* Benny <benny@hostmobility.com>
*
* 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/pci.h>
#include <linux/pm.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/mutex.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/vmalloc.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "cs46xx.h"
#include "cs46xx_lib.h"
#include "dsp_spos.h"
static void amp_voyetra(struct snd_cs46xx *chip, int change);
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops;
#endif
static const struct snd_pcm_ops snd_cs46xx_playback_ops;
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops;
static const struct snd_pcm_ops snd_cs46xx_capture_ops;
static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops;
static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
unsigned short reg,
int codec_index)
{
int count;
unsigned short result,tmp;
u32 offset = 0;
if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
codec_index != CS46XX_SECONDARY_CODEC_INDEX))
return 0xffff;
chip->active_ctrl(chip, 1);
if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
offset = CS46XX_SECONDARY_CODEC_OFFSET;
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write7---55
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
* 5. if DCV not cleared, break and return error
* 6. Read ACSTS = Status Register = 464h, check VSTS bit
*/
snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
if ((tmp & ACCTL_VFRM) == 0) {
dev_warn(chip->card->dev, "ACCTL_VFRM not set 0x%x\n", tmp);
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
msleep(50);
tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
}
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* set CRW - Read command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW |
ACCTL_VFRM | ACCTL_ESYN |
ACCTL_RSTN);
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
ACCTL_VFRM | ACCTL_ESYN |
ACCTL_RSTN);
} else {
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
ACCTL_RSTN);
}
/*
* Wait for the read to occur.
*/
for (count = 0; count < 1000; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10);
/*
* Now, check to see if the read has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 17h
*/
if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
goto ok1;
}
dev_err(chip->card->dev,
"AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
result = 0xffff;
goto end;
ok1:
/*
* Wait for the valid status bit to go active.
*/
for (count = 0; count < 100; count++) {
/*
* Read the AC97 status register.
* ACSTS = Status Register = 464h
* VSTS - Valid Status
*/
if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
goto ok2;
udelay(10);
}
dev_err(chip->card->dev,
"AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n",
codec_index, reg);
result = 0xffff;
goto end;
ok2:
/*
* Read the data returned from the AC97 register.
* ACSDA = Status Data Register = 474h
*/
#if 0
dev_dbg(chip->card->dev,
"e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
snd_cs46xx_peekBA0(chip, BA0_ACSDA),
snd_cs46xx_peekBA0(chip, BA0_ACCAD));
#endif
//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
end:
chip->active_ctrl(chip, -1);
return result;
}
static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
unsigned short reg)
{
struct snd_cs46xx *chip = ac97->private_data;
unsigned short val;
int codec_index = ac97->num;
if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
codec_index != CS46XX_SECONDARY_CODEC_INDEX))
return 0xffff;
val = snd_cs46xx_codec_read(chip, reg, codec_index);
return val;
}
static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
unsigned short reg,
unsigned short val,
int codec_index)
{
int count;
if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
codec_index != CS46XX_SECONDARY_CODEC_INDEX))
return;
chip->active_ctrl(chip, 1);
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
* 5. if DCV not cleared, break and return error
*/
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* reset CRW - Write command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
snd_cs46xx_peekBA0(chip, BA0_ACCTL);
if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
ACCTL_ESYN | ACCTL_RSTN);
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
ACCTL_ESYN | ACCTL_RSTN);
} else {
snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
}
for (count = 0; count < 4000; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10);
/*
* Now, check to see if the write has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 07h
*/
if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
goto end;
}
}
dev_err(chip->card->dev,
"AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n",
codec_index, reg, val);
end:
chip->active_ctrl(chip, -1);
}
static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
unsigned short reg,
unsigned short val)
{
struct snd_cs46xx *chip = ac97->private_data;
int codec_index = ac97->num;
if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
codec_index != CS46XX_SECONDARY_CODEC_INDEX))
return;
snd_cs46xx_codec_write(chip, reg, val, codec_index);
}
/*
* Chip initialization
*/
int snd_cs46xx_download(struct snd_cs46xx *chip,
u32 *src,
unsigned long offset,
unsigned long len)
{
void __iomem *dst;
unsigned int bank = offset >> 16;
offset = offset & 0xffff;
if (snd_BUG_ON((offset & 3) || (len & 3)))
return -EINVAL;
dst = chip->region.idx[bank+1].remap_addr + offset;
len /= sizeof(u32);
/* writel already converts 32-bit value to right endianess */
while (len-- > 0) {
writel(*src++, dst);
dst += sizeof(u32);
}
return 0;
}
static inline void memcpy_le32(void *dst, const void *src, unsigned int len)
{
#ifdef __LITTLE_ENDIAN
memcpy(dst, src, len);
#else
u32 *_dst = dst;
const __le32 *_src = src;
len /= 4;
while (len-- > 0)
*_dst++ = le32_to_cpu(*_src++);
#endif
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static const char *module_names[CS46XX_DSP_MODULES] = {
"cwc4630", "cwcasync", "cwcsnoop", "cwcbinhack", "cwcdma"
};
MODULE_FIRMWARE("cs46xx/cwc4630");
MODULE_FIRMWARE("cs46xx/cwcasync");
MODULE_FIRMWARE("cs46xx/cwcsnoop");
MODULE_FIRMWARE("cs46xx/cwcbinhack");
MODULE_FIRMWARE("cs46xx/cwcdma");
static void free_module_desc(struct dsp_module_desc *module)
{
if (!module)
return;
kfree(module->module_name);
kfree(module->symbol_table.symbols);
if (module->segments) {
int i;
for (i = 0; i < module->nsegments; i++)
kfree(module->segments[i].data);
kfree(module->segments);
}
kfree(module);
}
/* firmware binary format:
* le32 nsymbols;
* struct {
* le32 address;
* char symbol_name[DSP_MAX_SYMBOL_NAME];
* le32 symbol_type;
* } symbols[nsymbols];
* le32 nsegments;
* struct {
* le32 segment_type;
* le32 offset;
* le32 size;
* le32 data[size];
* } segments[nsegments];
*/
static int load_firmware(struct snd_cs46xx *chip,
struct dsp_module_desc **module_ret,
const char *fw_name)
{
int i, err;
unsigned int nums, fwlen, fwsize;
const __le32 *fwdat;
struct dsp_module_desc *module = NULL;
const struct firmware *fw;
char fw_path[32];
sprintf(fw_path, "cs46xx/%s", fw_name);
err = request_firmware(&fw, fw_path, &chip->pci->dev);
if (err < 0)
return err;
fwsize = fw->size / 4;
if (fwsize < 2) {
err = -EINVAL;
goto error;
}
err = -ENOMEM;
module = kzalloc(sizeof(*module), GFP_KERNEL);
if (!module)
goto error;
module->module_name = kstrdup(fw_name, GFP_KERNEL);
if (!module->module_name)
goto error;
fwlen = 0;
fwdat = (const __le32 *)fw->data;
nums = module->symbol_table.nsymbols = le32_to_cpu(fwdat[fwlen++]);
if (nums >= 40)
goto error_inval;
module->symbol_table.symbols =
kcalloc(nums, sizeof(struct dsp_symbol_entry), GFP_KERNEL);
if (!module->symbol_table.symbols)
goto error;
for (i = 0; i < nums; i++) {
struct dsp_symbol_entry *entry =
&module->symbol_table.symbols[i];
if (fwlen + 2 + DSP_MAX_SYMBOL_NAME / 4 > fwsize)
goto error_inval;
entry->address = le32_to_cpu(fwdat[fwlen++]);
memcpy(entry->symbol_name, &fwdat[fwlen], DSP_MAX_SYMBOL_NAME - 1);
fwlen += DSP_MAX_SYMBOL_NAME / 4;
entry->symbol_type = le32_to_cpu(fwdat[fwlen++]);
}
if (fwlen >= fwsize)
goto error_inval;
nums = module->nsegments = le32_to_cpu(fwdat[fwlen++]);
if (nums > 10)
goto error_inval;
module->segments =
kcalloc(nums, sizeof(struct dsp_segment_desc), GFP_KERNEL);
if (!module->segments)
goto error;
for (i = 0; i < nums; i++) {
struct dsp_segment_desc *entry = &module->segments[i];
if (fwlen + 3 > fwsize)
goto error_inval;
entry->segment_type = le32_to_cpu(fwdat[fwlen++]);
entry->offset = le32_to_cpu(fwdat[fwlen++]);
entry->size = le32_to_cpu(fwdat[fwlen++]);
if (fwlen + entry->size > fwsize)
goto error_inval;
entry->data = kmalloc_array(entry->size, 4, GFP_KERNEL);
if (!entry->data)
goto error;
memcpy_le32(entry->data, &fwdat[fwlen], entry->size * 4);
fwlen += entry->size;
}
*module_ret = module;
release_firmware(fw);
return 0;
error_inval:
err = -EINVAL;
error:
free_module_desc(module);
release_firmware(fw);
return err;
}
int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
unsigned long offset,
unsigned long len)
{
void __iomem *dst;
unsigned int bank = offset >> 16;
offset = offset & 0xffff;
if (snd_BUG_ON((offset & 3) || (len & 3)))
return -EINVAL;
dst = chip->region.idx[bank+1].remap_addr + offset;
len /= sizeof(u32);
/* writel already converts 32-bit value to right endianess */
while (len-- > 0) {
writel(0, dst);
dst += sizeof(u32);
}
return 0;
}
#else /* old DSP image */
struct ba1_struct {
struct {
u32 offset;
u32 size;
} memory[BA1_MEMORY_COUNT];
u32 map[BA1_DWORD_SIZE];
};
MODULE_FIRMWARE("cs46xx/ba1");
static int load_firmware(struct snd_cs46xx *chip)
{
const struct firmware *fw;
int i, size, err;
err = request_firmware(&fw, "cs46xx/ba1", &chip->pci->dev);
if (err < 0)
return err;
if (fw->size != sizeof(*chip->ba1)) {
err = -EINVAL;
goto error;
}
chip->ba1 = vmalloc(sizeof(*chip->ba1));
if (!chip->ba1) {
err = -ENOMEM;
goto error;
}
memcpy_le32(chip->ba1, fw->data, sizeof(*chip->ba1));
/* sanity check */
size = 0;
for (i = 0; i < BA1_MEMORY_COUNT; i++)
size += chip->ba1->memory[i].size;
if (size > BA1_DWORD_SIZE * 4)
err = -EINVAL;
error:
release_firmware(fw);
return err;
}
int snd_cs46xx_download_image(struct snd_cs46xx *chip)
{
int idx, err;
unsigned int offset = 0;
struct ba1_struct *ba1 = chip->ba1;
for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
err = snd_cs46xx_download(chip,
&ba1->map[offset],
ba1->memory[idx].offset,
ba1->memory[idx].size);
if (err < 0)
return err;
offset += ba1->memory[idx].size >> 2;
}
return 0;
}
#endif /* CONFIG_SND_CS46XX_NEW_DSP */
/*
* Chip reset
*/
static void snd_cs46xx_reset(struct snd_cs46xx *chip)
{
int idx;
/*
* Write the reset bit of the SP control register.
*/
snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
/*
* Write the control register.
*/
snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
/*
* Clear the trap registers.
*/
for (idx = 0; idx < 8; idx++) {
snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
}
snd_cs46xx_poke(chip, BA1_DREG, 0);
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
}
static int cs46xx_wait_for_fifo(struct snd_cs46xx * chip,int retry_timeout)
{
u32 i, status = 0;
/*
* Make sure the previous FIFO write operation has completed.
*/
for(i = 0; i < 50; i++){
status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
if( !(status & SERBST_WBSY) )
break;
mdelay(retry_timeout);
}
if(status & SERBST_WBSY) {
dev_err(chip->card->dev,
"failure waiting for FIFO command to complete\n");
return -EINVAL;
}
return 0;
}
static void snd_cs46xx_clear_serial_FIFOs(struct snd_cs46xx *chip)
{
int idx, powerdown = 0;
unsigned int tmp;
/*
* See if the devices are powered down. If so, we must power them up first
* or they will not respond.
*/
tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
if (!(tmp & CLKCR1_SWCE)) {
snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
powerdown = 1;
}
/*
* We want to clear out the serial port FIFOs so we don't end up playing
* whatever random garbage happens to be in them. We fill the sample FIFOS
* with zero (silence).
*/
snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
/*
* Fill all 256 sample FIFO locations.
*/
for (idx = 0; idx < 0xFF; idx++) {
/*
* Make sure the previous FIFO write operation has completed.
*/
if (cs46xx_wait_for_fifo(chip,1)) {
dev_dbg(chip->card->dev,
"failed waiting for FIFO at addr (%02X)\n",
idx);
if (powerdown)
snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
break;
}
/*
* Write the serial port FIFO index.
*/
snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
/*
* Tell the serial port to load the new value into the FIFO location.
*/
snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
}
/*
* Now, if we powered up the devices, then power them back down again.
* This is kinda ugly, but should never happen.
*/
if (powerdown)
snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
}
static void snd_cs46xx_proc_start(struct snd_cs46xx *chip)
{
int cnt;
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
/*
* Turn on the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
/*
* Wait until the run at frame bit resets itself in the SP control
* register.
*/
for (cnt = 0; cnt < 25; cnt++) {
udelay(50);
if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
break;
}
if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
dev_err(chip->card->dev, "SPCR_RUNFR never reset\n");
}
static void snd_cs46xx_proc_stop(struct snd_cs46xx *chip)
{
/*
* Turn off the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
snd_cs46xx_poke(chip, BA1_SPCR, 0);
}
/*
* Sample rate routines
*/
#define GOF_PER_SEC 200
static void snd_cs46xx_set_play_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
{
unsigned long flags;
unsigned int tmp1, tmp2;
unsigned int phiIncr;
unsigned int correctionPerGOF, correctionPerSec;
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
* GOF_PER_SEC * correctionPerGOF
*
* i.e.
*
* phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
*/
tmp1 = rate << 16;
phiIncr = tmp1 / 48000;
tmp1 -= phiIncr * 48000;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / 48000;
phiIncr += tmp2;
tmp1 -= tmp2 * 48000;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
/*
* Fill in the SampleRateConverter control block.
*/
spin_lock_irqsave(&chip->reg_lock, flags);
snd_cs46xx_poke(chip, BA1_PSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_cs46xx_set_capture_sample_rate(struct snd_cs46xx *chip, unsigned int rate)
{
unsigned long flags;
unsigned int phiIncr, coeffIncr, tmp1, tmp2;
unsigned int correctionPerGOF, correctionPerSec, initialDelay;
unsigned int frameGroupLength, cnt;
/*
* We can only decimate by up to a factor of 1/9th the hardware rate.
* Correct the value if an attempt is made to stray outside that limit.
*/
if ((rate * 9) < 48000)
rate = 48000 / 9;
/*
* We can not capture at at rate greater than the Input Rate (48000).
* Return an error if an attempt is made to stray outside that limit.
*/
if (rate > 48000)
rate = 48000;
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
* GOF_PER_SEC * correctionPerGOF
* initialDelay = ceil((24 * Fs,in) / Fs,out)
*
* i.e.
*
* coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
* phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
* initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
*/
tmp1 = rate << 16;
coeffIncr = tmp1 / 48000;
tmp1 -= coeffIncr * 48000;
tmp1 <<= 7;
coeffIncr <<= 7;
coeffIncr += tmp1 / 48000;
coeffIncr ^= 0xFFFFFFFF;
coeffIncr++;
tmp1 = 48000 << 16;
phiIncr = tmp1 / rate;
tmp1 -= phiIncr * rate;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / rate;
phiIncr += tmp2;
tmp1 -= tmp2 * rate;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
initialDelay = ((48000 * 24) + rate - 1) / rate;
/*
* Fill in the VariDecimate control block.
*/
spin_lock_irqsave(&chip->reg_lock, flags);
snd_cs46xx_poke(chip, BA1_CSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
snd_cs46xx_poke(chip, BA1_CD,
(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
spin_unlock_irqrestore(&chip->reg_lock, flags);
/*
* Figure out the frame group length for the write back task. Basically,
* this is just the factors of 24000 (2^6*3*5^3) that are not present in
* the output sample rate.
*/
frameGroupLength = 1;
for (cnt = 2; cnt <= 64; cnt *= 2) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 2;
}
if (((rate / 3) * 3) != rate) {
frameGroupLength *= 3;
}
for (cnt = 5; cnt <= 125; cnt *= 5) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 5;
}
/*
* Fill in the WriteBack control block.
*/
spin_lock_irqsave(&chip->reg_lock, flags);
snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
/*
* PCM part
*/
static void snd_cs46xx_pb_trans_copy(struct snd_pcm_substream *substream,
struct snd_pcm_indirect *rec, size_t bytes)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm * cpcm = runtime->private_data;
memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
}
static int snd_cs46xx_playback_transfer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm * cpcm = runtime->private_data;
return snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec,
snd_cs46xx_pb_trans_copy);
}
static void snd_cs46xx_cp_trans_copy(struct snd_pcm_substream *substream,
struct snd_pcm_indirect *rec, size_t bytes)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
memcpy(runtime->dma_area + rec->sw_data,
chip->capt.hw_buf.area + rec->hw_data, bytes);
}
static int snd_cs46xx_capture_transfer(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
return snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec,
snd_cs46xx_cp_trans_copy);
}
static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
size_t ptr;
struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
if (snd_BUG_ON(!cpcm->pcm_channel))
return -ENXIO;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
#else
ptr = snd_cs46xx_peek(chip, BA1_PBA);
#endif
ptr -= cpcm->hw_buf.addr;
return ptr >> cpcm->shift;
}
static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
size_t ptr;
struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (snd_BUG_ON(!cpcm->pcm_channel))
return -ENXIO;
ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
#else
ptr = snd_cs46xx_peek(chip, BA1_PBA);
#endif
ptr -= cpcm->hw_buf.addr;
return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
}
static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
return ptr >> chip->capt.shift;
}
static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
}
static int snd_cs46xx_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
/*struct snd_pcm_runtime *runtime = substream->runtime;*/
int result = 0;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
if (! cpcm->pcm_channel) {
return -ENXIO;
}
#endif
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
#ifdef CONFIG_SND_CS46XX_NEW_DSP
/* magic value to unmute PCM stream playback volume */
snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
SCBVolumeCtrl) << 2, 0x80008000);
if (cpcm->pcm_channel->unlinked)
cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
if (substream->runtime->periods != CS46XX_FRAGS)
snd_cs46xx_playback_transfer(substream);
#else
spin_lock(&chip->reg_lock);
if (substream->runtime->periods != CS46XX_FRAGS)
snd_cs46xx_playback_transfer(substream);
{ unsigned int tmp;
tmp = snd_cs46xx_peek(chip, BA1_PCTL);
tmp &= 0x0000ffff;
snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
}
spin_unlock(&chip->reg_lock);
#endif
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
#ifdef CONFIG_SND_CS46XX_NEW_DSP
/* magic mute channel */
snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address +
SCBVolumeCtrl) << 2, 0xffffffff);
if (!cpcm->pcm_channel->unlinked)
cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
#else
spin_lock(&chip->reg_lock);
{ unsigned int tmp;
tmp = snd_cs46xx_peek(chip, BA1_PCTL);
tmp &= 0x0000ffff;
snd_cs46xx_poke(chip, BA1_PCTL, tmp);
}
spin_unlock(&chip->reg_lock);
#endif
break;
default:
result = -EINVAL;
break;
}
return result;
}
static int snd_cs46xx_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
unsigned int tmp;
int result = 0;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
tmp = snd_cs46xx_peek(chip, BA1_CCTL);
tmp &= 0xffff0000;
snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
tmp = snd_cs46xx_peek(chip, BA1_CCTL);
tmp &= 0xffff0000;
snd_cs46xx_poke(chip, BA1_CCTL, tmp);
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
return result;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46xx_pcm *cpcm,
int sample_rate)
{
/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
if ( cpcm->pcm_channel == NULL) {
cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate,
cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
if (cpcm->pcm_channel == NULL) {
dev_err(chip->card->dev,
"failed to create virtual PCM channel\n");
return -ENOMEM;
}
cpcm->pcm_channel->sample_rate = sample_rate;
} else
/* if sample rate is changed */
if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
int unlinked = cpcm->pcm_channel->unlinked;
cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm,
cpcm->hw_buf.addr,
cpcm->pcm_channel_id)) == NULL) {
dev_err(chip->card->dev,
"failed to re-create virtual PCM channel\n");
return -ENOMEM;
}
if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
cpcm->pcm_channel->sample_rate = sample_rate;
}
return 0;
}
#endif
static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm *cpcm;
int err;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
int sample_rate = params_rate(hw_params);
int period_size = params_period_bytes(hw_params);
#endif
cpcm = runtime->private_data;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (snd_BUG_ON(!sample_rate))
return -ENXIO;
mutex_lock(&chip->spos_mutex);
if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
mutex_unlock(&chip->spos_mutex);
return -ENXIO;
}
snd_BUG_ON(!cpcm->pcm_channel);
if (!cpcm->pcm_channel) {
mutex_unlock(&chip->spos_mutex);
return -ENXIO;
}
if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
mutex_unlock(&chip->spos_mutex);
return -EINVAL;
}
dev_dbg(chip->card->dev,
"period_size (%d), periods (%d) buffer_size(%d)\n",
period_size, params_periods(hw_params),
params_buffer_bytes(hw_params));
#endif
if (params_periods(hw_params) == CS46XX_FRAGS) {
if (runtime->dma_area != cpcm->hw_buf.area)
snd_pcm_lib_free_pages(substream);
runtime->dma_area = cpcm->hw_buf.area;
runtime->dma_addr = cpcm->hw_buf.addr;
runtime->dma_bytes = cpcm->hw_buf.bytes;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
substream->ops = &snd_cs46xx_playback_ops;
} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
substream->ops = &snd_cs46xx_playback_rear_ops;
} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
substream->ops = &snd_cs46xx_playback_clfe_ops;
} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
substream->ops = &snd_cs46xx_playback_iec958_ops;
} else {
snd_BUG();
}
#else
substream->ops = &snd_cs46xx_playback_ops;
#endif
} else {
if (runtime->dma_area == cpcm->hw_buf.area) {
runtime->dma_area = NULL;
runtime->dma_addr = 0;
runtime->dma_bytes = 0;
}
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
#ifdef CONFIG_SND_CS46XX_NEW_DSP
mutex_unlock(&chip->spos_mutex);
#endif
return err;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
substream->ops = &snd_cs46xx_playback_indirect_ops;
} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
} else {
snd_BUG();
}
#else
substream->ops = &snd_cs46xx_playback_indirect_ops;
#endif
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
mutex_unlock(&chip->spos_mutex);
#endif
return 0;
}
static int snd_cs46xx_playback_hw_free(struct snd_pcm_substream *substream)
{
/*struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);*/
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm *cpcm;
cpcm = runtime->private_data;
/* if play_back open fails, then this function
is called and cpcm can actually be NULL here */
if (!cpcm) return -ENXIO;
if (runtime->dma_area != cpcm->hw_buf.area)
snd_pcm_lib_free_pages(substream);
runtime->dma_area = NULL;
runtime->dma_addr = 0;
runtime->dma_bytes = 0;
return 0;
}
static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
{
unsigned int tmp;
unsigned int pfie;
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm *cpcm;
cpcm = runtime->private_data;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (snd_BUG_ON(!cpcm->pcm_channel))
return -ENXIO;
pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
pfie &= ~0x0000f03f;
#else
/* old dsp */
pfie = snd_cs46xx_peek(chip, BA1_PFIE);
pfie &= ~0x0000f03f;
#endif
cpcm->shift = 2;
/* if to convert from stereo to mono */
if (runtime->channels == 1) {
cpcm->shift--;
pfie |= 0x00002000;
}
/* if to convert from 8 bit to 16 bit */
if (snd_pcm_format_width(runtime->format) == 8) {
cpcm->shift--;
pfie |= 0x00001000;
}
/* if to convert to unsigned */
if (snd_pcm_format_unsigned(runtime->format))
pfie |= 0x00008000;
/* Never convert byte order when sample stream is 8 bit */
if (snd_pcm_format_width(runtime->format) != 8) {
/* convert from big endian to little endian */
if (snd_pcm_format_big_endian(runtime->format))
pfie |= 0x00004000;
}
memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
tmp &= ~0x000003ff;
tmp |= (4 << cpcm->shift) - 1;
/* playback transaction count register */
snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
/* playback format && interrupt enable */
snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
#else
snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
tmp = snd_cs46xx_peek(chip, BA1_PDTC);
tmp &= ~0x000003ff;
tmp |= (4 << cpcm->shift) - 1;
snd_cs46xx_poke(chip, BA1_PDTC, tmp);
snd_cs46xx_poke(chip, BA1_PFIE, pfie);
snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
#endif
return 0;
}
static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int err;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
#endif
if (runtime->periods == CS46XX_FRAGS) {
if (runtime->dma_area != chip->capt.hw_buf.area)
snd_pcm_lib_free_pages(substream);
runtime->dma_area = chip->capt.hw_buf.area;
runtime->dma_addr = chip->capt.hw_buf.addr;
runtime->dma_bytes = chip->capt.hw_buf.bytes;
substream->ops = &snd_cs46xx_capture_ops;
} else {
if (runtime->dma_area == chip->capt.hw_buf.area) {
runtime->dma_area = NULL;
runtime->dma_addr = 0;
runtime->dma_bytes = 0;
}
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
return err;
substream->ops = &snd_cs46xx_capture_indirect_ops;
}
return 0;
}
static int snd_cs46xx_capture_hw_free(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->dma_area != chip->capt.hw_buf.area)
snd_pcm_lib_free_pages(substream);
runtime->dma_area = NULL;
runtime->dma_addr = 0;
runtime->dma_bytes = 0;
return 0;
}
static int snd_cs46xx_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
chip->capt.shift = 2;
memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
return 0;
}
static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
{
struct snd_cs46xx *chip = dev_id;
u32 status1;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
u32 status2;
int i;
struct snd_cs46xx_pcm *cpcm = NULL;
#endif
/*
* Read the Interrupt Status Register to clear the interrupt
*/
status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
if ((status1 & 0x7fffffff) == 0) {
snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
return IRQ_NONE;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
if (i <= 15) {
if ( status1 & (1 << i) ) {
if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
if (chip->capt.substream)
snd_pcm_period_elapsed(chip->capt.substream);
} else {
if (ins->pcm_channels[i].active &&
ins->pcm_channels[i].private_data &&
!ins->pcm_channels[i].unlinked) {
cpcm = ins->pcm_channels[i].private_data;
snd_pcm_period_elapsed(cpcm->substream);
}
}
}
} else {
if ( status2 & (1 << (i - 16))) {
if (ins->pcm_channels[i].active &&
ins->pcm_channels[i].private_data &&
!ins->pcm_channels[i].unlinked) {
cpcm = ins->pcm_channels[i].private_data;
snd_pcm_period_elapsed(cpcm->substream);
}
}
}
}
#else
/* old dsp */
if ((status1 & HISR_VC0) && chip->playback_pcm) {
if (chip->playback_pcm->substream)
snd_pcm_period_elapsed(chip->playback_pcm->substream);
}
if ((status1 & HISR_VC1) && chip->pcm) {
if (chip->capt.substream)
snd_pcm_period_elapsed(chip->capt.substream);
}
#endif
if ((status1 & HISR_MIDI) && chip->rmidi) {
unsigned char c;
spin_lock(&chip->reg_lock);
while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
if ((chip->midcr & MIDCR_RIE) == 0)
continue;
snd_rawmidi_receive(chip->midi_input, &c, 1);
}
while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
if ((chip->midcr & MIDCR_TIE) == 0)
break;
if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
chip->midcr &= ~MIDCR_TIE;
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
break;
}
snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
}
spin_unlock(&chip->reg_lock);
}
/*
* EOI to the PCI part....reenables interrupts
*/
snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
return IRQ_HANDLED;
}
static const struct snd_pcm_hardware snd_cs46xx_playback =
{
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
/*SNDRV_PCM_INFO_RESUME*/ |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 5500,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (256 * 1024),
.period_bytes_min = CS46XX_MIN_PERIOD_SIZE,
.period_bytes_max = CS46XX_MAX_PERIOD_SIZE,
.periods_min = CS46XX_FRAGS,
.periods_max = 1024,
.fifo_size = 0,
};
static const struct snd_pcm_hardware snd_cs46xx_capture =
{
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
/*SNDRV_PCM_INFO_RESUME*/ |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 5500,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = (256 * 1024),
.period_bytes_min = CS46XX_MIN_PERIOD_SIZE,
.period_bytes_max = CS46XX_MAX_PERIOD_SIZE,
.periods_min = CS46XX_FRAGS,
.periods_max = 1024,
.fifo_size = 0,
};
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static const unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
static const struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
.count = ARRAY_SIZE(period_sizes),
.list = period_sizes,
.mask = 0
};
#endif
static void snd_cs46xx_pcm_free_substream(struct snd_pcm_runtime *runtime)
{
kfree(runtime->private_data);
}
static int _cs46xx_playback_open_channel (struct snd_pcm_substream *substream,int pcm_channel_id)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_cs46xx_pcm * cpcm;
struct snd_pcm_runtime *runtime = substream->runtime;
cpcm = kzalloc(sizeof(*cpcm), GFP_KERNEL);
if (cpcm == NULL)
return -ENOMEM;
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
PAGE_SIZE, &cpcm->hw_buf) < 0) {
kfree(cpcm);
return -ENOMEM;
}
runtime->hw = snd_cs46xx_playback;
runtime->private_data = cpcm;
runtime->private_free = snd_cs46xx_pcm_free_substream;
cpcm->substream = substream;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
mutex_lock(&chip->spos_mutex);
cpcm->pcm_channel = NULL;
cpcm->pcm_channel_id = pcm_channel_id;
snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
&hw_constraints_period_sizes);
mutex_unlock(&chip->spos_mutex);
#else
chip->playback_pcm = cpcm; /* HACK */
#endif
if (chip->accept_valid)
substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
chip->active_ctrl(chip, 1);
return 0;
}
static int snd_cs46xx_playback_open(struct snd_pcm_substream *substream)
{
dev_dbg(substream->pcm->card->dev, "open front channel\n");
return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static int snd_cs46xx_playback_open_rear(struct snd_pcm_substream *substream)
{
dev_dbg(substream->pcm->card->dev, "open rear channel\n");
return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
}
static int snd_cs46xx_playback_open_clfe(struct snd_pcm_substream *substream)
{
dev_dbg(substream->pcm->card->dev, "open center - LFE channel\n");
return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
}
static int snd_cs46xx_playback_open_iec958(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
dev_dbg(chip->card->dev, "open raw iec958 channel\n");
mutex_lock(&chip->spos_mutex);
cs46xx_iec958_pre_open (chip);
mutex_unlock(&chip->spos_mutex);
return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
}
static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream);
static int snd_cs46xx_playback_close_iec958(struct snd_pcm_substream *substream)
{
int err;
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
dev_dbg(chip->card->dev, "close raw iec958 channel\n");
err = snd_cs46xx_playback_close(substream);
mutex_lock(&chip->spos_mutex);
cs46xx_iec958_post_close (chip);
mutex_unlock(&chip->spos_mutex);
return err;
}
#endif
static int snd_cs46xx_capture_open(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
PAGE_SIZE, &chip->capt.hw_buf) < 0)
return -ENOMEM;
chip->capt.substream = substream;
substream->runtime->hw = snd_cs46xx_capture;
if (chip->accept_valid)
substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
chip->active_ctrl(chip, 1);
#ifdef CONFIG_SND_CS46XX_NEW_DSP
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
&hw_constraints_period_sizes);
#endif
return 0;
}
static int snd_cs46xx_playback_close(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_cs46xx_pcm * cpcm;
cpcm = runtime->private_data;
/* when playback_open fails, then cpcm can be NULL */
if (!cpcm) return -ENXIO;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
mutex_lock(&chip->spos_mutex);
if (cpcm->pcm_channel) {
cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
cpcm->pcm_channel = NULL;
}
mutex_unlock(&chip->spos_mutex);
#else
chip->playback_pcm = NULL;
#endif
cpcm->substream = NULL;
snd_dma_free_pages(&cpcm->hw_buf);
chip->active_ctrl(chip, -1);
return 0;
}
static int snd_cs46xx_capture_close(struct snd_pcm_substream *substream)
{
struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
chip->capt.substream = NULL;
snd_dma_free_pages(&chip->capt.hw_buf);
chip->active_ctrl(chip, -1);
return 0;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static const struct snd_pcm_ops snd_cs46xx_playback_rear_ops = {
.open = snd_cs46xx_playback_open_rear,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_direct_pointer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_rear_ops = {
.open = snd_cs46xx_playback_open_rear,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_indirect_pointer,
.ack = snd_cs46xx_playback_transfer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_clfe_ops = {
.open = snd_cs46xx_playback_open_clfe,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_direct_pointer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_clfe_ops = {
.open = snd_cs46xx_playback_open_clfe,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_indirect_pointer,
.ack = snd_cs46xx_playback_transfer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_iec958_ops = {
.open = snd_cs46xx_playback_open_iec958,
.close = snd_cs46xx_playback_close_iec958,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_direct_pointer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_iec958_ops = {
.open = snd_cs46xx_playback_open_iec958,
.close = snd_cs46xx_playback_close_iec958,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_indirect_pointer,
.ack = snd_cs46xx_playback_transfer,
};
#endif
static const struct snd_pcm_ops snd_cs46xx_playback_ops = {
.open = snd_cs46xx_playback_open,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_direct_pointer,
};
static const struct snd_pcm_ops snd_cs46xx_playback_indirect_ops = {
.open = snd_cs46xx_playback_open,
.close = snd_cs46xx_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_playback_hw_params,
.hw_free = snd_cs46xx_playback_hw_free,
.prepare = snd_cs46xx_playback_prepare,
.trigger = snd_cs46xx_playback_trigger,
.pointer = snd_cs46xx_playback_indirect_pointer,
.ack = snd_cs46xx_playback_transfer,
};
static const struct snd_pcm_ops snd_cs46xx_capture_ops = {
.open = snd_cs46xx_capture_open,
.close = snd_cs46xx_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_capture_hw_params,
.hw_free = snd_cs46xx_capture_hw_free,
.prepare = snd_cs46xx_capture_prepare,
.trigger = snd_cs46xx_capture_trigger,
.pointer = snd_cs46xx_capture_direct_pointer,
};
static const struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
.open = snd_cs46xx_capture_open,
.close = snd_cs46xx_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_cs46xx_capture_hw_params,
.hw_free = snd_cs46xx_capture_hw_free,
.prepare = snd_cs46xx_capture_prepare,
.trigger = snd_cs46xx_capture_trigger,
.pointer = snd_cs46xx_capture_indirect_pointer,
.ack = snd_cs46xx_capture_transfer,
};
#ifdef CONFIG_SND_CS46XX_NEW_DSP
#define MAX_PLAYBACK_CHANNELS (DSP_MAX_PCM_CHANNELS - 1)
#else
#define MAX_PLAYBACK_CHANNELS 1
#endif
int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
return err;
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
/* global setup */
pcm->info_flags = 0;
strcpy(pcm->name, "CS46xx");
chip->pcm = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
return 0;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
return err;
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
/* global setup */
pcm->info_flags = 0;
strcpy(pcm->name, "CS46xx - Rear");
chip->pcm_rear = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
return 0;
}
int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
return err;
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
/* global setup */
pcm->info_flags = 0;
strcpy(pcm->name, "CS46xx - Center LFE");
chip->pcm_center_lfe = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
return 0;
}
int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
return err;
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
/* global setup */
pcm->info_flags = 0;
strcpy(pcm->name, "CS46xx - IEC958");
chip->pcm_iec958 = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
return 0;
}
#endif
/*
* Mixer routines
*/
static void snd_cs46xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
{
struct snd_cs46xx *chip = bus->private_data;
chip->ac97_bus = NULL;
}
static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
{
struct snd_cs46xx *chip = ac97->private_data;
if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
return;
if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
chip->eapd_switch = NULL;
}
else
chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
}
static int snd_cs46xx_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0x7fff;
return 0;
}
static int snd_cs46xx_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value;
unsigned int val = snd_cs46xx_peek(chip, reg);
ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
return 0;
}
static int snd_cs46xx_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value;
unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 |
(0xffff - ucontrol->value.integer.value[1]));
unsigned int old = snd_cs46xx_peek(chip, reg);
int change = (old != val);
if (change) {
snd_cs46xx_poke(chip, reg, val);
}
return change;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
static int snd_cs46xx_vol_dac_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
return 0;
}
static int snd_cs46xx_vol_dac_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int change = 0;
if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
cs46xx_dsp_set_dac_volume(chip,
ucontrol->value.integer.value[0],
ucontrol->value.integer.value[1]);
change = 1;
}
return change;
}
#if 0
static int snd_cs46xx_vol_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
return 0;
}
static int snd_cs46xx_vol_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int change = 0;
if (chip->dsp_spos_instance->spdif_input_volume_left != ucontrol->value.integer.value[0] ||
chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
cs46xx_dsp_set_iec958_volume (chip,
ucontrol->value.integer.value[0],
ucontrol->value.integer.value[1]);
change = 1;
}
return change;
}
#endif
#define snd_mixer_boolean_info snd_ctl_boolean_mono_info
static int snd_cs46xx_iec958_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value;
if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
else
ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
return 0;
}
static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int change, res;
switch (kcontrol->private_value) {
case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
mutex_lock(&chip->spos_mutex);
change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
if (ucontrol->value.integer.value[0] && !change)
cs46xx_dsp_enable_spdif_out(chip);
else if (change && !ucontrol->value.integer.value[0])
cs46xx_dsp_disable_spdif_out(chip);
res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
mutex_unlock(&chip->spos_mutex);
break;
case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
change = chip->dsp_spos_instance->spdif_status_in;
if (ucontrol->value.integer.value[0] && !change) {
cs46xx_dsp_enable_spdif_in(chip);
/* restore volume */
}
else if (change && !ucontrol->value.integer.value[0])
cs46xx_dsp_disable_spdif_in(chip);
res = (change != chip->dsp_spos_instance->spdif_status_in);
break;
default:
res = -EINVAL;
snd_BUG(); /* should never happen ... */
}
return res;
}
static int snd_cs46xx_adc_capture_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if (ins->adc_input != NULL)
ucontrol->value.integer.value[0] = 1;
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int snd_cs46xx_adc_capture_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
int change = 0;
if (ucontrol->value.integer.value[0] && !ins->adc_input) {
cs46xx_dsp_enable_adc_capture(chip);
change = 1;
} else if (!ucontrol->value.integer.value[0] && ins->adc_input) {
cs46xx_dsp_disable_adc_capture(chip);
change = 1;
}
return change;
}
static int snd_cs46xx_pcm_capture_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
if (ins->pcm_input != NULL)
ucontrol->value.integer.value[0] = 1;
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int snd_cs46xx_pcm_capture_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
int change = 0;
if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
cs46xx_dsp_enable_pcm_capture(chip);
change = 1;
} else if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
cs46xx_dsp_disable_pcm_capture(chip);
change = 1;
}
return change;
}
static int snd_herc_spdif_select_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
if (val1 & EGPIODR_GPOE0)
ucontrol->value.integer.value[0] = 1;
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
/*
* Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
*/
static int snd_herc_spdif_select_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
if (ucontrol->value.integer.value[0]) {
/* optical is default */
snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,
EGPIODR_GPOE0 | val1); /* enable EGPIO0 output */
snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR,
EGPIOPTR_GPPT0 | val2); /* open-drain on output */
} else {
/* coaxial */
snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, val1 & ~EGPIODR_GPOE0); /* disable */
snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
}
/* checking diff from the EGPIO direction register
should be enough */
return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
}
static int snd_cs46xx_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
static int snd_cs46xx_spdif_default_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
mutex_lock(&chip->spos_mutex);
ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
ucontrol->value.iec958.status[2] = 0;
ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
mutex_unlock(&chip->spos_mutex);
return 0;
}
static int snd_cs46xx_spdif_default_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
unsigned int val;
int change;
mutex_lock(&chip->spos_mutex);
val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
/* left and right validity bit */
(1 << 13) | (1 << 12);
change = (unsigned int)ins->spdif_csuv_default != val;
ins->spdif_csuv_default = val;
if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
mutex_unlock(&chip->spos_mutex);
return change;
}
static int snd_cs46xx_spdif_mask_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.iec958.status[0] = 0xff;
ucontrol->value.iec958.status[1] = 0xff;
ucontrol->value.iec958.status[2] = 0x00;
ucontrol->value.iec958.status[3] = 0xff;
return 0;
}
static int snd_cs46xx_spdif_stream_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
mutex_lock(&chip->spos_mutex);
ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
ucontrol->value.iec958.status[2] = 0;
ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
mutex_unlock(&chip->spos_mutex);
return 0;
}
static int snd_cs46xx_spdif_stream_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx * chip = snd_kcontrol_chip(kcontrol);
struct dsp_spos_instance * ins = chip->dsp_spos_instance;
unsigned int val;
int change;
mutex_lock(&chip->spos_mutex);
val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
/* left and right validity bit */
(1 << 13) | (1 << 12);
change = ins->spdif_csuv_stream != val;
ins->spdif_csuv_stream = val;
if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
mutex_unlock(&chip->spos_mutex);
return change;
}
#endif /* CONFIG_SND_CS46XX_NEW_DSP */
static struct snd_kcontrol_new snd_cs46xx_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DAC Volume",
.info = snd_cs46xx_vol_info,
#ifndef CONFIG_SND_CS46XX_NEW_DSP
.get = snd_cs46xx_vol_get,
.put = snd_cs46xx_vol_put,
.private_value = BA1_PVOL,
#else
.get = snd_cs46xx_vol_dac_get,
.put = snd_cs46xx_vol_dac_put,
#endif
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "ADC Volume",
.info = snd_cs46xx_vol_info,
.get = snd_cs46xx_vol_get,
.put = snd_cs46xx_vol_put,
#ifndef CONFIG_SND_CS46XX_NEW_DSP
.private_value = BA1_CVOL,
#else
.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
#endif
},
#ifdef CONFIG_SND_CS46XX_NEW_DSP
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "ADC Capture Switch",
.info = snd_mixer_boolean_info,
.get = snd_cs46xx_adc_capture_get,
.put = snd_cs46xx_adc_capture_put
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DAC Capture Switch",
.info = snd_mixer_boolean_info,
.get = snd_cs46xx_pcm_capture_get,
.put = snd_cs46xx_pcm_capture_put
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
.info = snd_mixer_boolean_info,
.get = snd_cs46xx_iec958_get,
.put = snd_cs46xx_iec958_put,
.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,SWITCH),
.info = snd_mixer_boolean_info,
.get = snd_cs46xx_iec958_get,
.put = snd_cs46xx_iec958_put,
.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
},
#if 0
/* Input IEC958 volume does not work for the moment. (Benny) */
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = SNDRV_CTL_NAME_IEC958("Input ",NONE,VOLUME),
.info = snd_cs46xx_vol_info,
.get = snd_cs46xx_vol_iec958_get,
.put = snd_cs46xx_vol_iec958_put,
.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
},
#endif
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
.info = snd_cs46xx_spdif_info,
.get = snd_cs46xx_spdif_default_get,
.put = snd_cs46xx_spdif_default_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
.info = snd_cs46xx_spdif_info,
.get = snd_cs46xx_spdif_mask_get,
.access = SNDRV_CTL_ELEM_ACCESS_READ
},
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
.info = snd_cs46xx_spdif_info,
.get = snd_cs46xx_spdif_stream_get,
.put = snd_cs46xx_spdif_stream_put
},
#endif
};
#ifdef CONFIG_SND_CS46XX_NEW_DSP
/* set primary cs4294 codec into Extended Audio Mode */
static int snd_cs46xx_front_dup_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
unsigned short val;
val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
return 0;
}
static int snd_cs46xx_front_dup_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_cs46xx *chip = snd_kcontrol_chip(kcontrol);
return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
AC97_CSR_ACMODE, 0x200,
ucontrol->value.integer.value[0] ? 0 : 0x200);
}
static const struct snd_kcontrol_new snd_cs46xx_front_dup_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Duplicate Front",
.info = snd_mixer_boolean_info,
.get = snd_cs46xx_front_dup_get,
.put = snd_cs46xx_front_dup_put,
};
#endif
#ifdef CONFIG_SND_CS46XX_NEW_DSP
/* Only available on the Hercules Game Theater XP soundcard */
static struct snd_kcontrol_new snd_hercules_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Optical/Coaxial SPDIF Input Switch",
.info = snd_mixer_boolean_info,
.get = snd_herc_spdif_select_get,
.put = snd_herc_spdif_select_put,
},
};
static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
{
unsigned long end_time;
int err;
/* reset to defaults */
snd_ac97_write(ac97, AC97_RESET, 0);
/* set the desired CODEC mode */
if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
dev_dbg(ac97->bus->card->dev, "CODEC1 mode %04x\n", 0x0);
snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x0);
} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
dev_dbg(ac97->bus->card->dev, "CODEC2 mode %04x\n", 0x3);
snd_cs46xx_ac97_write(ac97, AC97_CSR_ACMODE, 0x3);
} else {
snd_BUG(); /* should never happen ... */
}
udelay(50);
/* it's necessary to wait awhile until registers are accessible after RESET */
/* because the PCM or MASTER volume registers can be modified, */
/* the REC_GAIN register is used for tests */
end_time = jiffies + HZ;
do {
unsigned short ext_mid;
/* use preliminary reads to settle the communication */
snd_ac97_read(ac97, AC97_RESET);
snd_ac97_read(ac97, AC97_VENDOR_ID1);
snd_ac97_read(ac97, AC97_VENDOR_ID2);
/* modem? */
ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
if (ext_mid != 0xffff && (ext_mid & 1) != 0)
return;
/* test if we can write to the record gain volume register */
snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05);
if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
return;
msleep(10);
} while (time_after_eq(end_time, jiffies));
dev_err(ac97->bus->card->dev,
"CS46xx secondary codec doesn't respond!\n");
}
#endif
static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
{
int idx, err;
struct snd_ac97_template ac97;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
ac97.private_free = snd_cs46xx_mixer_free_ac97;
ac97.num = codec;
if (chip->amplifier_ctrl == amp_voyetra)
ac97.scaps = AC97_SCAP_INV_EAPD;
if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
udelay(10);
if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
dev_dbg(chip->card->dev,
"secondary codec not present\n");
return -ENXIO;
}
}
snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
for (idx = 0; idx < 100; ++idx) {
if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
return err;
}
msleep(10);
}
dev_dbg(chip->card->dev, "codec %d detection timeout\n", codec);
return -ENXIO;
}
int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
{
struct snd_card *card = chip->card;
struct snd_ctl_elem_id id;
int err;
unsigned int idx;
static struct snd_ac97_bus_ops ops = {
#ifdef CONFIG_SND_CS46XX_NEW_DSP
.reset = snd_cs46xx_codec_reset,
#endif
.write = snd_cs46xx_ac97_write,
.read = snd_cs46xx_ac97_read,
};
/* detect primary codec */
chip->nr_ac97_codecs = 0;
dev_dbg(chip->card->dev, "detecting primary codec\n");
if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
return err;
chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
return -ENXIO;
chip->nr_ac97_codecs = 1;
#ifdef CONFIG_SND_CS46XX_NEW_DSP
dev_dbg(chip->card->dev, "detecting secondary codec\n");
/* try detect a secondary codec */
if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
chip->nr_ac97_codecs = 2;
#endif /* CONFIG_SND_CS46XX_NEW_DSP */
/* add cs4630 mixer controls */
for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
struct snd_kcontrol *kctl;
kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM)
kctl->id.device = spdif_device;
if ((err = snd_ctl_add(card, kctl)) < 0)
return err;
}
/* get EAPD mixer switch (for voyetra hack) */
memset(&id, 0, sizeof(id));
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
strcpy(id.name, "External Amplifier");
chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (chip->nr_ac97_codecs == 1) {
unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
if ((id2 & 0xfff0) == 0x5920) { /* CS4294 and CS4298 */
err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
if (err < 0)
return err;
snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
AC97_CSR_ACMODE, 0x200);
}
}
/* do soundcard specific mixer setup */
if (chip->mixer_init) {
dev_dbg(chip->card->dev, "calling chip->mixer_init(chip);\n");
chip->mixer_init(chip);
}
#endif
/* turn on amplifier */
chip->amplifier_ctrl(chip, 1);
return 0;
}
/*
* RawMIDI interface
*/
static void snd_cs46xx_midi_reset(struct snd_cs46xx *chip)
{
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
udelay(100);
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
static int snd_cs46xx_midi_input_open(struct snd_rawmidi_substream *substream)
{
struct snd_cs46xx *chip = substream->rmidi->private_data;
chip->active_ctrl(chip, 1);
spin_lock_irq(&chip->reg_lock);
chip->uartm |= CS46XX_MODE_INPUT;
chip->midcr |= MIDCR_RXE;
chip->midi_input = substream;
if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
snd_cs46xx_midi_reset(chip);
} else {
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
spin_unlock_irq(&chip->reg_lock);
return 0;
}
static int snd_cs46xx_midi_input_close(struct snd_rawmidi_substream *substream)
{
struct snd_cs46xx *chip = substream->rmidi->private_data;
spin_lock_irq(&chip->reg_lock);
chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
chip->midi_input = NULL;
if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
snd_cs46xx_midi_reset(chip);
} else {
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
chip->uartm &= ~CS46XX_MODE_INPUT;
spin_unlock_irq(&chip->reg_lock);
chip->active_ctrl(chip, -1);
return 0;
}
static int snd_cs46xx_midi_output_open(struct snd_rawmidi_substream *substream)
{
struct snd_cs46xx *chip = substream->rmidi->private_data;
chip->active_ctrl(chip, 1);
spin_lock_irq(&chip->reg_lock);
chip->uartm |= CS46XX_MODE_OUTPUT;
chip->midcr |= MIDCR_TXE;
chip->midi_output = substream;
if (!(chip->uartm & CS46XX_MODE_INPUT)) {
snd_cs46xx_midi_reset(chip);
} else {
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
spin_unlock_irq(&chip->reg_lock);
return 0;
}
static int snd_cs46xx_midi_output_close(struct snd_rawmidi_substream *substream)
{
struct snd_cs46xx *chip = substream->rmidi->private_data;
spin_lock_irq(&chip->reg_lock);
chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
chip->midi_output = NULL;
if (!(chip->uartm & CS46XX_MODE_INPUT)) {
snd_cs46xx_midi_reset(chip);
} else {
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
chip->uartm &= ~CS46XX_MODE_OUTPUT;
spin_unlock_irq(&chip->reg_lock);
chip->active_ctrl(chip, -1);
return 0;
}
static void snd_cs46xx_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
struct snd_cs46xx *chip = substream->rmidi->private_data;
spin_lock_irqsave(&chip->reg_lock, flags);
if (up) {
if ((chip->midcr & MIDCR_RIE) == 0) {
chip->midcr |= MIDCR_RIE;
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
} else {
if (chip->midcr & MIDCR_RIE) {
chip->midcr &= ~MIDCR_RIE;
snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_cs46xx_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
struct snd_cs46xx *chip = substream->rmidi->private_data;
unsigned char byte;
spin_lock_irqsave(&chip->reg_lock, flags);
if (up) {
if ((chip->midcr & MIDCR_TIE) == 0) {
chip->midcr |= MIDCR_TIE;
/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
while ((chip->midcr & MIDCR_TIE) &&
(snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
chip->midcr &= ~MIDCR_TIE;
} else