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ALSA: snd-aoa: handle older machines

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This patch changes snd-aoa to handle some older machines that are
currently handled by snd-powermac. snd-aoa has a number of advantages
though, notably it can autoload better and is generally a more modern
driver.

By hardcoding the accepted device-ids (last hunk of the patch) I'm
trying to avoid regressions because this driver will otherwise load
automatically and not let snd-powermac load. People who are unhappy
with snd-powermac and have a device-id property in the device tree
are encouraged to read this patch and make a patch to amend this as
appropriate.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Johannes Berg 2009-01-15 18:21:48 +01:00 committed by Takashi Iwai
parent 37a76bd4f1
commit 45e513b689
2 changed files with 74 additions and 22 deletions
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74
sound/aoa/fabrics/layout.c
View file

@ -1,16 +1,14 @@
/*
* Apple Onboard Audio driver -- layout fabric
* Apple Onboard Audio driver -- layout/machine id fabric
*
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net>
*
* GPL v2, can be found in COPYING.
*
*
* This fabric module looks for sound codecs
* based on the layout-id property in the device tree.
*
* This fabric module looks for sound codecs based on the
* layout-id or device-id property in the device tree.
*/
#include <asm/prom.h>
#include <linux/list.h>
#include <linux/module.h>
@ -63,7 +61,7 @@ struct codec_connect_info {
#define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
struct layout {
unsigned int layout_id;
unsigned int layout_id, device_id;
struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
int flags;
@ -111,6 +109,10 @@ MODULE_ALIAS("sound-layout-96");
MODULE_ALIAS("sound-layout-98");
MODULE_ALIAS("sound-layout-100");
MODULE_ALIAS("aoa-device-id-14");
MODULE_ALIAS("aoa-device-id-22");
MODULE_ALIAS("aoa-device-id-35");
/* onyx with all but microphone connected */
static struct codec_connection onyx_connections_nomic[] = {
{
@ -518,6 +520,27 @@ static struct layout layouts[] = {
.connections = onyx_connections_noheadphones,
},
},
/* PowerMac3,4 */
{ .device_id = 14,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_noline,
},
},
/* PowerMac3,6 */
{ .device_id = 22,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_all,
},
},
/* PowerBook5,2 */
{ .device_id = 35,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_all,
},
},
{}
};
@ -526,7 +549,7 @@ static struct layout *find_layout_by_id(unsigned int id)
struct layout *l;
l = layouts;
while (l->layout_id) {
while (l->codecs[0].name) {
if (l->layout_id == id)
return l;
l++;
@ -534,6 +557,19 @@ static struct layout *find_layout_by_id(unsigned int id)
return NULL;
}
static struct layout *find_layout_by_device(unsigned int id)
{
struct layout *l;
l = layouts;
while (l->codecs[0].name) {
if (l->device_id == id)
return l;
l++;
}
return NULL;
}
static void use_layout(struct layout *l)
{
int i;
@ -938,8 +974,8 @@ static struct aoa_fabric layout_fabric = {
static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
{
struct device_node *sound = NULL;
const unsigned int *layout_id;
struct layout *layout;
const unsigned int *id;
struct layout *layout = NULL;
struct layout_dev *ldev = NULL;
int err;
@ -952,15 +988,18 @@ static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
break;
}
if (!sound) return -ENODEV;
if (!sound)
return -ENODEV;
layout_id = of_get_property(sound, "layout-id", NULL);
if (!layout_id)
goto outnodev;
printk(KERN_INFO "snd-aoa-fabric-layout: found bus with layout %d\n",
*layout_id);
id = of_get_property(sound, "layout-id", NULL);
if (id) {
layout = find_layout_by_id(*id);
} else {
id = of_get_property(sound, "device-id", NULL);
if (id)
layout = find_layout_by_device(*id);
}
layout = find_layout_by_id(*layout_id);
if (!layout) {
printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
goto outnodev;
@ -976,6 +1015,7 @@ static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
ldev->layout = layout;
ldev->gpio.node = sound->parent;
switch (layout->layout_id) {
case 0: /* anything with device_id, not layout_id */
case 41: /* that unknown machine no one seems to have */
case 51: /* PowerBook5,4 */
case 58: /* Mac Mini */

22
sound/aoa/soundbus/i2sbus/core.c
View file

@ -1,7 +1,7 @@
/*
* i2sbus driver
*
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net>
*
* GPL v2, can be found in COPYING.
*/
@ -186,13 +186,25 @@ static int i2sbus_add_dev(struct macio_dev *macio,
}
}
if (i == 1) {
const u32 *layout_id =
of_get_property(sound, "layout-id", NULL);
if (layout_id) {
layout = *layout_id;
const u32 *id = of_get_property(sound, "layout-id", NULL);
if (id) {
layout = *id;
snprintf(dev->sound.modalias, 32,
"sound-layout-%d", layout);
ok = 1;
} else {
id = of_get_property(sound, "device-id", NULL);
/*
* We probably cannot handle all device-id machines,
* so restrict to those we do handle for now.
*/
if (id && (*id == 22 || *id == 14 || *id == 35)) {
snprintf(dev->sound.modalias, 32,
"aoa-device-id-%d", *id);
ok = 1;
layout = -1;
}
}
}
/* for the time being, until we can handle non-layout-id