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Subject[PATCH][RFCA] Sound: Avance Logic codecs addition
Kernel: 2.4.17
Hardware: ALi5451+ALC100P
Module: sound/ac97_codec.c

The following patch adds the ALC100, ALC100P, ALC101, ALC201, ALC201A and
ALC650 codecs to the list. It was tested with a mother using ALC100P. The
rest are from information found in Realtek's datasheets (ALC=Avance Logic,
now absorved by Realtek).
The patch not only adds the entries but also changes the structure a little
bit. That's needed because according to the datasheets the lower 4 bits are
reserved for the revision number (0000==rev A). In fact the chip I have
returns 6 as revision number. For this reason I added a field to indicate a
mask to filter some bits.

diff -ru linux-2.4.17.ori/drivers/sound/ac97_codec.c
linux-2.4.17/drivers/sound/ac97_codec.c
--- linux-2.4.17.ori/drivers/sound/ac97_codec.c Mon Nov 12 15:02:54 2001
+++ linux-2.4.17/drivers/sound/ac97_codec.c Tue Jan 8 21:54:34 2002
@@ -31,6 +31,8 @@
**************************************************************************

*
* History
+ * v0.5 Jan 08 2002 Salvador E. Tropea (SET)
+ * added Avance Logic ALC codec ids and a mask mechanism for ranges.
* v0.4 Mar 15 2000 Ollie Lho
* dual codecs support verified with 4 channels output
* v0.3 Feb 22 2000 Ollie Lho
@@ -98,51 +100,58 @@
/* sorted by vendor/device id */
static const struct {
u32 id;
+ /* Some manufacturers use a range of values */
+ u32 mask;
char *name;
struct ac97_ops *ops;
} ac97_codec_ids[] = {
- {0x41445303, "Analog Devices AD1819", &null_ops},
- {0x41445340, "Analog Devices AD1881", &null_ops},
- {0x41445348, "Analog Devices AD1881A", &null_ops},
- {0x41445360, "Analog Devices AD1885", &default_ops},
- {0x41445460, "Analog Devices AD1885", &default_ops},
- {0x414B4D00, "Asahi Kasei AK4540", &null_ops},
- {0x414B4D01, "Asahi Kasei AK4542", &null_ops},
- {0x414B4D02, "Asahi Kasei AK4543", &null_ops},
- {0x414C4710, "ALC200/200P", &null_ops},
- {0x43525900, "Cirrus Logic CS4297", &default_ops},
- {0x43525903, "Cirrus Logic CS4297", &default_ops},
- {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops},
- {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops},
- {0x43525923, "Cirrus Logic CS4298", &null_ops},
- {0x4352592B, "Cirrus Logic CS4294", &null_ops},
- {0x4352592D, "Cirrus Logic CS4294", &null_ops},
- {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops},
- {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops},
- {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops},
- {0x45838308, "ESS Allegro ES1988", &null_ops},
- {0x49434511, "ICE1232", &null_ops}, /* I hope --jk
*/
- {0x4e534331, "National Semiconductor LM4549", &null_ops},
- {0x53494c22, "Silicon Laboratory Si3036", &null_ops},
- {0x53494c23, "Silicon Laboratory Si3038", &null_ops},
- {0x545200FF, "TriTech TR?????", &tritech_m_ops},
- {0x54524102, "TriTech TR28022", &null_ops},
- {0x54524103, "TriTech TR28023", &null_ops},
- {0x54524106, "TriTech TR28026", &null_ops},
- {0x54524108, "TriTech TR28028", &tritech_ops},
- {0x54524123, "TriTech TR A5", &null_ops},
- {0x574D4C00, "Wolfson WM9704", &wolfson_ops},
- {0x574D4C03, "Wolfson WM9703/9704", &wolfson_ops},
- {0x574D4C04, "Wolfson WM9704 (quad)", &wolfson_ops},
- {0x83847600, "SigmaTel STAC????", &null_ops},
- {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops},
- {0x83847605, "SigmaTel STAC9704", &null_ops},
- {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops},
- {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops},
- {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops},
- {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops},
- {0x83847684, "SigmaTel STAC9783/84?", &null_ops},
- {0x57454301, "Winbond 83971D", &null_ops},
+ {0x41445303, ~0, "Analog Devices AD1819", &null_ops},
+ {0x41445340, ~0, "Analog Devices AD1881", &null_ops},
+ {0x41445348, ~0, "Analog Devices AD1881A", &null_ops},
+ {0x41445360, ~0, "Analog Devices AD1885", &default_ops},
+ {0x41445460, ~0, "Analog Devices AD1885", &default_ops},
+ {0x414B4D00, ~0, "Asahi Kasei AK4540", &null_ops},
+ {0x414B4D01, ~0, "Asahi Kasei AK4542", &null_ops},
+ {0x414B4D02, ~0, "Asahi Kasei AK4543", &null_ops},
+ /* ALC = Avance Logic, now Realtek, 0x414C43 is ALC and 0x414C47 ALG
*/
+ /* Note: 4 LSB are the revision 0 = rev A */
+ {0x414C4320, ~0xF, "ALC 100/P", &null_ops},
+ {0x414C4710, ~0xF, "ALC 200/201/201A/P", &null_ops},
+ {0x414C4720, ~0xF, "ALC 650", &null_ops},
+ {0x414C4730, ~0xF, "ALC 101", &null_ops},
+ {0x43525900, ~0, "Cirrus Logic CS4297", &default_ops},
+ {0x43525903, ~0, "Cirrus Logic CS4297", &default_ops},
+ {0x43525913, ~0, "Cirrus Logic CS4297A rev A", &default_ops},
+ {0x43525914, ~0, "Cirrus Logic CS4297A rev B", &default_ops},
+ {0x43525923, ~0, "Cirrus Logic CS4298", &null_ops},
+ {0x4352592B, ~0, "Cirrus Logic CS4294", &null_ops},
+ {0x4352592D, ~0, "Cirrus Logic CS4294", &null_ops},
+ {0x43525931, ~0, "Cirrus Logic CS4299 rev A",
&crystal_digital_ops},
+ {0x43525933, ~0, "Cirrus Logic CS4299 rev C",
&crystal_digital_ops},
+ {0x43525934, ~0, "Cirrus Logic CS4299 rev D",
&crystal_digital_ops},
+ {0x45838308, ~0, "ESS Allegro ES1988", &null_ops},
+ {0x49434511, ~0, "ICE1232", &null_ops}, /* I
hope --jk */
+ {0x4e534331, ~0, "National Semiconductor LM4549", &null_ops},
+ {0x53494c22, ~0, "Silicon Laboratory Si3036", &null_ops},
+ {0x53494c23, ~0, "Silicon Laboratory Si3038", &null_ops},
+ {0x545200FF, ~0, "TriTech TR?????", &tritech_m_ops},
+ {0x54524102, ~0, "TriTech TR28022", &null_ops},
+ {0x54524103, ~0, "TriTech TR28023", &null_ops},
+ {0x54524106, ~0, "TriTech TR28026", &null_ops},
+ {0x54524108, ~0, "TriTech TR28028", &tritech_ops},
+ {0x54524123, ~0, "TriTech TR A5", &null_ops},
+ {0x574D4C00, ~0, "Wolfson WM9704", &wolfson_ops},
+ {0x574D4C03, ~0, "Wolfson WM9703/9704", &wolfson_ops},
+ {0x574D4C04, ~0, "Wolfson WM9704 (quad)", &wolfson_ops},
+ {0x83847600, ~0, "SigmaTel STAC????", &null_ops},
+ {0x83847604, ~0, "SigmaTel STAC9701/3/4/5", &null_ops},
+ {0x83847605, ~0, "SigmaTel STAC9704", &null_ops},
+ {0x83847608, ~0, "SigmaTel STAC9708", &sigmatel_9708_ops},
+ {0x83847609, ~0, "SigmaTel STAC9721/23", &sigmatel_9721_ops},

+ {0x83847644, ~0, "SigmaTel STAC9744/45", &sigmatel_9744_ops},

+ {0x83847656, ~0, "SigmaTel STAC9756/57", &sigmatel_9744_ops},

+ {0x83847684, ~0, "SigmaTel STAC9783/84?", &null_ops},
+ {0x57454301, ~0, "Winbond 83971D", &null_ops},
};
static const char *ac97_stereo_enhancements[] =
@@ -668,6 +677,7 @@
{
u16 id1, id2;
u16 audio, modem;
+ u32 id;
int i;
/* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00
(reset) should
@@ -699,11 +709,19 @@

id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
+ id = ((id1 << 16) | id2);
+#ifdef DEBUG
+ printk("Looking for codec id: 0x%08x\n", id);
+#endif
for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) {
- if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) {
+ if ((ac97_codec_ids[i].id & ac97_codec_ids[i].mask) ==
+ (id & ac97_codec_ids[i].mask)) {
codec->type = ac97_codec_ids[i].id;
codec->name = ac97_codec_ids[i].name;
codec->codec_ops = ac97_codec_ids[i].ops;
+#ifdef DEBUG
+ printk("Found: %s\n",ac97_codec_ids[i].name);
+#endif
break;
}
}
<----------End of patch
Enabling the printk's I get:

Looking for codec id: 0x414c4326
Found: ALC 100/P

The motherboard is an ECS K7AMA and the lspci shows the ALi5451 stuff:
Bus 0, device 3, function 0:
Multimedia audio controller: Acer Laboratories Inc. [ALi] M5451 PCI
South Bridge Audio (rev 2).
IRQ 10.
Master Capable. Latency=64. Min Gnt=2.Max Lat=24.
I/O at 0xd400 [0xd4ff].
Non-prefetchable 32 bit memory at 0xdfffe000 [0xdfffefff].

--
Salvador Eduardo Tropea (SET). (Electronics Engineer)
Visit my home page: http://welcome.to/SetSoft or
http://www.geocities.com/SiliconValley/Vista/6552/
Alternative e-mail: set@computer.org set@ieee.org
Address: Curapaligue 2124, Caseros, 3 de Febrero
Buenos Aires, (1678), ARGENTINA Phone: +(5411) 4759 0013



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