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Commit 45e513b6 authored by Johannes Berg's avatar Johannes Berg Committed by Takashi Iwai
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ALSA: snd-aoa: handle older machines 



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: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 37a76bd4

sound/aoa/fabrics/layout.c

+57 −17
Original line number Diff line number Diff line 
/*

 * 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 */

sound/aoa/soundbus/i2sbus/core.c

+17 −5
Original line number Diff line number Diff line 
/*

 * 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