/*
* Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
* Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
* Version: 0.0.18
*
* FEATURES currently supported:
* See ca0106_main.c for features.
*
* Changelog:
* Support interrupts per period.
* Removed noise from Center/LFE channel when in Analog mode.
* Rename and remove mixer controls.
* 0.0.6
* Use separate card based DMA buffer for periods table list.
* 0.0.7
* Change remove and rename ctrls into lists.
* 0.0.8
* Try to fix capture sources.
* 0.0.9
* Fix AC3 output.
* Enable S32_LE format support.
* 0.0.10
* Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
* 0.0.11
* Add Model name recognition.
* 0.0.12
* Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
* Remove redundent "voice" handling.
* 0.0.13
* Single trigger call for multi channels.
* 0.0.14
* Set limits based on what the sound card hardware can do.
* playback periods_min=2, periods_max=8
* capture hw constraints require period_size = n * 64 bytes.
* playback hw constraints require period_size = n * 64 bytes.
* 0.0.15
* Separate ca0106.c into separate functional .c files.
* 0.0.16
* Modified Copyright message.
* 0.0.17
* Add iec958 file in proc file system to show status of SPDIF in.
* 0.0.18
* Implement support for Line-in capture on SB Live 24bit.
*
* This code was initially based on code from ALSA's emu10k1x.c which is:
* Copyright (c) by Francisco Moraes <fmoraes@nc.rr.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/init.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/info.h>
#include <sound/asoundef.h>
#include <asm/io.h>
#include "ca0106.h"
#ifdef CONFIG_PROC_FS
struct snd_ca0106_category_str {
int val;
const char *name;
};
static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
{ IEC958_AES1_CON_DAT, "DAT" },
{ IEC958_AES1_CON_VCR, "VCR" },
{ IEC958_AES1_CON_MICROPHONE, "microphone" },
{ IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
{ IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
{ IEC958_AES1_CON_MIXER, "mixer" },
{ IEC958_AES1_CON_SAMPLER, "sampler" },
{ IEC958_AES1_CON_PCM_CODER, "PCM coder" },
{ IEC958_AES1_CON_IEC908_CD, "CD" },
{ IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
{ IEC958_AES1_CON_GENERAL, "general" },
};
static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
{
int i;
u32 status[4];
status[0] = value & 0xff;
status[1] = (value >> 8) & 0xff;
status[2] = (value >> 16) & 0xff;
status[3] = (value >> 24) & 0xff;
if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
/* consumer */
snd_iprintf(buffer, "Mode: consumer\n");
snd_iprintf(buffer, "Data: ");
if (!(status[0] & IEC958_AES0_NONAUDIO)) {
snd_iprintf(buffer, "audio\n");
} else {
snd_iprintf(buffer, "non-audio\n");
}
snd_iprintf(buffer, "Rate: ");
switch (status[3] & IEC958_AES3_CON_FS) {
case IEC958_AES3_CON_FS_44100:
snd_iprintf(buffer, "44100 Hz\n");
break;
case IEC958_AES3_CON_FS_48000:
snd_iprintf(buffer, "48000 Hz\n");
break;
case IEC958_AES3_CON_FS_32000:
snd_iprintf(buffer, "32000 Hz\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
snd_iprintf(buffer, "Copyright: ");
if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
snd_iprintf(buffer, "permitted\n");
} else {
snd_iprintf(buffer, "protected\n");
}
snd_iprintf(buffer, "Emphasis: ");
if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
snd_iprintf(buffer, "none\n");
} else {
snd_iprintf(buffer, "50/15us\n");
}
snd_iprintf(buffer, "Category: ");
for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
break;
}
}
if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
}
snd_iprintf(buffer, "Original: ");
if (status[1] & IEC958_AES1_CON_ORIGINAL) {
snd_iprintf(buffer, "original\n");
} else {
snd_iprintf(buffer, "1st generation\n");
}
snd_iprintf(buffer, "Clock: ");
switch (status[3] & IEC958_AES3_CON_CLOCK) {
case IEC958_AES3_CON_CLOCK_1000PPM:
snd_iprintf(buffer, "1000 ppm\n");
break;
case IEC958_AES3_CON_CLOCK_50PPM:
snd_iprintf(buffer, "50 ppm\n");
break;
case IEC958_AES3_CON_CLOCK_VARIABLE:
snd_iprintf(buffer, "variable pitch\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
} else {
snd_iprintf(buffer, "Mode: professional\n");
snd_iprintf(buffer, "Data: ");
if (!(status[0] & IEC958_AES0_NONAUDIO)) {
snd_iprintf(buffer, "audio\n");
} else {
snd_iprintf(buffer, "non-audio\n");
}
snd_iprintf(buffer, "Rate: ");
switch (status[0] & IEC958_AES0_PRO_FS) {
case IEC958_AES0_PRO_FS_44100:
snd_iprintf(buffer, "44100 Hz\n");
break;
case IEC958_AES0_PRO_FS_48000:
snd_iprintf(buffer, "48000 Hz\n");
break;
case IEC958_AES0_PRO_FS_32000:
snd_iprintf(buffer, "32000 Hz\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
snd_iprintf(buffer, "Rate Locked: ");
if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
snd_iprintf(buffer, "no\n");
else
snd_iprintf(buffer, "yes\n");
snd_iprintf(buffer, "Emphasis: ");
switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
case IEC958_AES0_PRO_EMPHASIS_CCITT:
snd_iprintf(buffer, "CCITT J.17\n");
break;
case IEC958_AES0_PRO_EMPHASIS_NONE:
snd_iprintf(buffer, "none\n");
break;
case IEC958_AES0_PRO_EMPHASIS_5015:
snd_iprintf(buffer, "50/15us\n");
break;
case IEC958_AES0_PRO_EMPHASIS_NOTID:
default:
snd_iprintf(buffer, "unknown\n");
break;
}
snd_iprintf(buffer, "Stereophonic: ");
if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
snd_iprintf(buffer, "stereo\n");
} else {
snd_iprintf(buffer, "not indicated\n");
}
snd_iprintf(buffer, "Userbits: ");
switch (status[1] & IEC958_AES1_PRO_USERBITS) {
case IEC958_AES1_PRO_USERBITS_192:
snd_iprintf(buffer, "192bit\n");
break;
case IEC958_AES1_PRO_USERBITS_UDEF:
snd_iprintf(buffer, "user-defined\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
snd_iprintf(buffer, "Sample Bits: ");
switch (status[2] & IEC958_AES2_PRO_SBITS) {
case IEC958_AES2_PRO_SBITS_20:
snd_iprintf(buffer, "20 bit\n");
break;
case IEC958_AES2_PRO_SBITS_24:
snd_iprintf(buffer, "24 bit\n");
break;
case IEC958_AES2_PRO_SBITS_UDEF:
snd_iprintf(buffer, "user defined\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
snd_iprintf(buffer, "Word Length: ");
switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
case IEC958_AES2_PRO_WORDLEN_22_18:
snd_iprintf(buffer, "22 bit or 18 bit\n");
break;
case IEC958_AES2_PRO_WORDLEN_23_19:
snd_iprintf(buffer, "23 bit or 19 bit\n");
break;
case IEC958_AES2_PRO_WORDLEN_24_20:
snd_iprintf(buffer, "24 bit or 20 bit\n");
break;
case IEC958_AES2_PRO_WORDLEN_20_16:
snd_iprintf(buffer, "20 bit or 16 bit\n");
break;
default:
snd_iprintf(buffer, "unknown\n");
break;
}
}
}
static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
u32 value;
value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
snd_iprintf(buffer, "Status: %s, %s, %s\n",
(value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
(value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
(value & 0x400000) ? "Audio Valid" : "No valid audio" );
snd_iprintf(buffer, "Estimated sample rate: %u\n",
((value & 0xfffff) * 48000) / 0x8000 );
if (value & 0x200000) {
snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
snd_ca0106_proc_dump_iec958(buffer, value);
}
snd_iprintf(buffer, "\n");
}
static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned long flags;
char line[64];
u32 reg, val;
while (!snd_info_get_line(buffer, line, sizeof(line))) {
if (sscanf(line, "%x %x", ®, &val) != 2)
continue;
if (reg < 0x40 && val <= 0xffffffff) {
spin_lock_irqsave(&emu->emu_lock, flags);
outl(val, emu->port + (reg & 0xfffffffc));
spin_unlock_irqrestore(&emu->emu_lock, flags);
}
}
}
static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned long value;
unsigned long flags;
int i;
snd_iprintf(buffer, "Registers:\n\n");
for(i = 0; i < 0x20; i+=4) {
spin_lock_irqsave(&emu->emu_lock, flags);
value = inl(emu->port + i);
spin_unlock_irqrestore(&emu->emu_lock, flags);
snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
}
}
static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned int value;
unsigned long flags;
int i;
snd_iprintf(buffer, "Registers:\n\n");
for(i = 0; i < 0x20; i+=2) {
spin_lock_irqsave(&emu->emu_lock, flags);
value = inw(emu->port + i);
spin_unlock_irqrestore(&emu->emu_lock, flags);
snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
}
}
static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned int value;
unsigned long flags;
int i;
snd_iprintf(buffer, "Registers:\n\n");
for(i = 0; i < 0x20; i+=1) {
spin_lock_irqsave(&emu->emu_lock, flags);
value = inb(emu->port + i);
spin_unlock_irqrestore(&emu->emu_lock, flags);
snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
}
}
static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned long value;
int i,j;
snd_iprintf(buffer, "Registers\n");
for(i = 0; i < 0x40; i++) {
snd_iprintf(buffer, "%02X: ",i);
for (j = 0; j < 4; j++) {
value = snd_ca0106_ptr_read(emu, i, j);
snd_iprintf(buffer, "%08lX ", value);
}
snd_iprintf(buffer, "\n");
}
}
static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
unsigned long value;
int i,j;
snd_iprintf(buffer, "Registers\n");
for(i = 0x40; i < 0x80; i++) {
snd_iprintf(buffer, "%02X: ",i);
for (j = 0; j < 4; j++) {
value = snd_ca0106_ptr_read(emu, i, j);
snd_iprintf(buffer, "%08lX ", value);
}
snd_iprintf(buffer, "\n");
}
}
static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
char line[64];
unsigned int reg, channel_id , val;
while (!snd_info_get_line(buffer, line, sizeof(line))) {
if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3)
continue;
if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3)
snd_ca0106_ptr_write(emu, reg, channel_id, val);
}
}
static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ca0106 *emu = entry->private_data;
char line[64];
unsigned int reg, val;
while (!snd_info_get_line(buffer, line, sizeof(line))) {
if (sscanf(line, "%x %x", ®, &val) != 2)
continue;
if ((reg <= 0x7f) || (val <= 0x1ff)) {
snd_ca0106_i2c_write(emu, reg, val);
}
}
}
int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
{
struct snd_info_entry *entry;
if(! snd_card_proc_new(emu->card, "iec958", &entry))
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
entry->c.text.write = snd_ca0106_proc_reg_write32;
entry->mode |= S_IWUSR;
}
if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
entry->c.text.write = snd_ca0106_proc_reg_write;
entry->mode |= S_IWUSR;
}
if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
entry->c.text.write = snd_ca0106_proc_i2c_write;
entry->private_data = emu;
entry->mode |= S_IWUSR;
}
if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
return 0;
}
#endif /* CONFIG_PROC_FS */