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Diffstat (limited to 'drivers/sound/ac97_codec.c')
-rw-r--r--drivers/sound/ac97_codec.c155
1 files changed, 137 insertions, 18 deletions
diff --git a/drivers/sound/ac97_codec.c b/drivers/sound/ac97_codec.c
index a1177c6df..56ee3df89 100644
--- a/drivers/sound/ac97_codec.c
+++ b/drivers/sound/ac97_codec.c
@@ -19,9 +19,11 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * History
- * Jan 14 2000 Ollie Lho <ollie@sis.com.tw>
- * Isloated from trident.c to support multiple ac97 codec
+ * History
+ * v0.2 Feb 10 2000 Ollie Lho
+ * add ac97_read_proc for /proc/driver/vnedor/ac97
+ * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw>
+ * Isolated from trident.c to support multiple ac97 codec
*/
#include <linux/module.h>
#include <linux/version.h>
@@ -36,11 +38,13 @@ static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, uns
static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask);
static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
+#define arraysize(x) (sizeof(x)/sizeof((x)[0]))
+
static struct {
unsigned int id;
char *name;
int (*init) (struct ac97_codec *codec);
-} snd_ac97_codec_ids[] = {
+} ac97_codec_ids[] = {
{0x414B4D00, "Asahi Kasei AK4540" , NULL},
{0x41445340, "Analog Devices AD1881" , NULL},
{0x43525900, "Cirrus Logic CS4297" , NULL},
@@ -52,9 +56,46 @@ static struct {
{0x83847605, "SigmaTel STAC9704" , NULL},
{0x83847608, "SigmaTel STAC9708" , NULL},
{0x83847609, "SigmaTel STAC9721/23" , NULL},
+ {0x54524108, "TriTech TR28028" , NULL},
+ {0x574D4C00, "Wolfson WM9704" , NULL},
{0x00000000, NULL, NULL}
};
+static const char *ac97_stereo_enhancements[] =
+{
+ /* 0 */ "No 3D Stereo Enhancement",
+ /* 1 */ "Analog Devices Phat Stereo",
+ /* 2 */ "Creative Stereo Enhancement",
+ /* 3 */ "National Semi 3D Stereo Enhancement",
+ /* 4 */ "YAMAHA Ymersion",
+ /* 5 */ "BBE 3D Stereo Enhancement",
+ /* 6 */ "Crystal Semi 3D Stereo Enhancement",
+ /* 7 */ "Qsound QXpander",
+ /* 8 */ "Spatializer 3D Stereo Enhancement",
+ /* 9 */ "SRS 3D Stereo Enhancement",
+ /* 10 */ "Platform Tech 3D Stereo Enhancement",
+ /* 11 */ "AKM 3D Audio",
+ /* 12 */ "Aureal Stereo Enhancement",
+ /* 13 */ "Aztech 3D Enhancement",
+ /* 14 */ "Binaura 3D Audio Enhancement",
+ /* 15 */ "ESS Technology Stereo Enhancement",
+ /* 16 */ "Harman International VMAx",
+ /* 17 */ "Nvidea 3D Stereo Enhancement",
+ /* 18 */ "Philips Incredible Sound",
+ /* 19 */ "Texas Instruments 3D Stereo Enhancement",
+ /* 20 */ "VLSI Technology 3D Stereo Enhancement",
+ /* 21 */ "TriTech 3D Stereo Enhancement",
+ /* 22 */ "Realtek 3D Stereo Enhancement",
+ /* 23 */ "Samsung 3D Stereo Enhancement",
+ /* 24 */ "Wolfson Microelectronics 3D Enhancement",
+ /* 25 */ "Delta Integration 3D Enhancement",
+ /* 26 */ "SigmaTel 3D Enhancement",
+ /* 27 */ "Reserved 27",
+ /* 28 */ "Rockwell 3D Stereo Enhancement",
+ /* 29 */ "Reserved 29",
+ /* 30 */ "Reserved 30",
+ /* 31 */ "Reserved 31"
+};
/* this table has default mixer values for all OSS mixers. */
static struct mixer_defaults {
@@ -86,9 +127,9 @@ static struct ac97_mixer_hw {
} ac97_hw[SOUND_MIXER_NRDEVICES]= {
[SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,63},
[SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 15},
- [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 15},
+ [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 15},
[SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 31},
- [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 15},
+ [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 15},
[SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 31},
[SOUND_MIXER_MIC] = {AC97_MIC_VOL, 31},
[SOUND_MIXER_CD] = {AC97_CD_VOL, 31},
@@ -155,10 +196,13 @@ static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel)
right = 100 - ((right * 100) / mh->scale);
left = 100 - ((left * 100) / mh->scale);
}
-
ret = left | (right << 8);
} else if (oss_channel == SOUND_MIXER_SPEAKER) {
ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale);
+ } else if (oss_channel == SOUND_MIXER_PHONEIN) {
+ ret = 100 - (((val & 0x1f) * 100) / mh->scale);
+ } else if (oss_channel == SOUND_MIXER_PHONEOUT) {
+ ret = 100 - (((val & 0x1f) * 100) / mh->scale);
} else if (oss_channel == SOUND_MIXER_MIC) {
ret = 100 - (((val & 0x1f) * 100) / mh->scale);
/* the low bit is optional in the tone sliders and masking
@@ -200,10 +244,14 @@ static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel,
} else {
right = ((100 - right) * mh->scale) / 100;
left = ((100 - left) * mh->scale) / 100;
- }
+ }
val = (left << 8) | right;
} else if (oss_channel == SOUND_MIXER_SPEAKER) {
val = (((100 - left) * mh->scale) / 100) << 1;
+ } else if (oss_channel == SOUND_MIXER_PHONEIN) {
+ val = (((100 - left) * mh->scale) / 100);
+ } else if (oss_channel == SOUND_MIXER_PHONEOUT) {
+ val = (((100 - left) * mh->scale) / 100);
} else if (oss_channel == SOUND_MIXER_MIC) {
val = codec->codec_read(codec , mh->offset) & ~0x801f;
val |= (((100 - left) * mh->scale) / 100);
@@ -212,11 +260,10 @@ static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel,
} else if (oss_channel == SOUND_MIXER_BASS) {
val = codec->codec_read(codec , mh->offset) & ~0x0f00;
val |= ((((100 - left) * mh->scale) / 100) << 8) & 0x0e00;
- } else if (oss_channel == SOUND_MIXER_TREBLE) {
+ } else if (oss_channel == SOUND_MIXER_TREBLE) {
val = codec->codec_read(codec , mh->offset) & ~0x000f;
val |= (((100 - left) * mh->scale) / 100) & 0x000e;
}
-
#ifdef DEBUG
printk(" 0x%04x", val);
#endif
@@ -335,11 +382,11 @@ static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned
return -EINVAL;
/* do we ever want to touch the hardware? */
- /* val = codec->read_mixer(card,i); */
- val = codec->mixer_state[i];
+ val = codec->read_mixer(codec, i);
+ /* val = codec->mixer_state[i]; */
break;
}
- return put_user(val,(int *)arg);
+ return put_user(val, (int *)arg);
}
if (_IOC_DIR(cmd) == (_IOC_WRITE|_IOC_READ)) {
@@ -368,6 +415,76 @@ static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned
return -EINVAL;
}
+/* entry point for /proc/driver/controller_vendor/ac97/%d */
+int ac97_read_proc (char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ int len = 0, cap, extid, val, id1, id2;
+ struct ac97_codec *codec;
+
+ if ((codec = data) == NULL)
+ return -ENODEV;
+
+ id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
+ id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
+ len += sprintf (page+len, "Vendor name : %s\n", codec->name);
+ len += sprintf (page+len, "Vendor id : %04X %04X\n", id1, id2);
+
+ extid = codec->codec_read(codec, AC97_EXTENDED_ID);
+ extid &= ~((1<<2)|(1<<4)|(1<<5)|(1<<10)|(1<<11)|(1<<12)|(1<<13));
+ len += sprintf (page+len, "AC97 Version : %s\n",
+ extid ? "2.0 or later" : "1.0");
+
+ cap = codec->codec_read(codec, AC97_RESET);
+ len += sprintf (page+len, "Capabilities :%s%s%s%s%s%s\n",
+ cap & 0x0001 ? " -dedicated MIC PCM IN channel-" : "",
+ cap & 0x0002 ? " -reserved1-" : "",
+ cap & 0x0004 ? " -bass & treble-" : "",
+ cap & 0x0008 ? " -simulated stereo-" : "",
+ cap & 0x0010 ? " -headphone out-" : "",
+ cap & 0x0020 ? " -loudness-" : "");
+ val = cap & 0x00c0;
+ len += sprintf (page+len, "DAC resolutions :%s%s%s\n",
+ " -16-bit-",
+ val & 0x0040 ? " -18-bit-" : "",
+ val & 0x0080 ? " -20-bit-" : "");
+ val = cap & 0x0300;
+ len += sprintf (page+len, "ADC resolutions :%s%s%s\n",
+ " -16-bit-",
+ val & 0x0100 ? " -18-bit-" : "",
+ val & 0x0200 ? " -20-bit-" : "");
+ len += sprintf (page+len, "3D enhancement : %s\n",
+ ac97_stereo_enhancements[(cap >> 10) & 0x1f]);
+
+ val = codec->codec_read(codec, AC97_GENERAL_PURPOSE);
+ len += sprintf (page+len, "POP path : %s 3D\n"
+ "Sim. stereo : %s\n"
+ "3D enhancement : %s\n"
+ "Loudness : %s\n"
+ "Mono output : %s\n"
+ "MIC select : %s\n"
+ "ADC/DAC loopback : %s\n",
+ val & 0x8000 ? "post" : "pre",
+ val & 0x4000 ? "on" : "off",
+ val & 0x2000 ? "on" : "off",
+ val & 0x1000 ? "on" : "off",
+ val & 0x0200 ? "MIC" : "MIX",
+ val & 0x0100 ? "MIC2" : "MIC1",
+ val & 0x0080 ? "on" : "off");
+
+ cap = extid;
+ len += sprintf (page+len, "Ext Capabilities :%s%s%s%s%s%s%s\n",
+ cap & 0x0001 ? " -var rate PCM audio-" : "",
+ cap & 0x0002 ? " -2x PCM audio out-" : "",
+ cap & 0x0008 ? " -var rate MIC in-" : "",
+ cap & 0x0040 ? " -PCM center DAC-" : "",
+ cap & 0x0080 ? " -PCM surround DAC-" : "",
+ cap & 0x0100 ? " -PCM LFE DAC-" : "",
+ cap & 0x0200 ? " -slot/DAC mappings-" : "");
+
+ return len;
+}
+
int ac97_probe_codec(struct ac97_codec *codec)
{
u16 id1, id2, cap;
@@ -379,12 +496,14 @@ int ac97_probe_codec(struct ac97_codec *codec)
if ((cap = codec->codec_read(codec, AC97_RESET)) & 0x8000)
return 0;
+ codec->name = NULL;
+ codec->codec_init = NULL;
id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
- for (i = 0; i < sizeof (snd_ac97_codec_ids); i++) {
- if (snd_ac97_codec_ids[i].id == ((id1 << 16) | id2)) {
- codec->name = snd_ac97_codec_ids[i].name;
- codec->codec_init = snd_ac97_codec_ids[i].init;
+ for (i = 0; i < arraysize(ac97_codec_ids); i++) {
+ if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) {
+ codec->name = ac97_codec_ids[i].name;
+ codec->codec_init = ac97_codec_ids[i].init;
break;
}
}
@@ -392,7 +511,6 @@ int ac97_probe_codec(struct ac97_codec *codec)
codec->name = "Unknown";
printk(KERN_INFO "ac97_codec: ac97 vendor id1: 0x%04x, id2: 0x%04x (%s)\n",
id1, id2, codec->name);
- printk(KERN_INFO "ac97_codec: capability: 0x%04x\n", cap);
/* mixer masks */
codec->supported_mixers = AC97_SUPPORTED_MASK;
@@ -437,4 +555,5 @@ static int sigmatel_init(struct ac97_codec * codec)
return 1;
}
+EXPORT_SYMBOL(ac97_read_proc);
EXPORT_SYMBOL(ac97_probe_codec);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 17:32:56 +0000