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linux/sound/aoa/fabrics/snd-aoa-fabric-layout.c

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/*
* Apple Onboard Audio driver -- layout fabric
*
* Copyright 2006 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.
*
*/
#include <asm/prom.h>
#include <linux/list.h>
#include <linux/module.h>
#include "../aoa.h"
#include "../soundbus/soundbus.h"
MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
#define MAX_CODECS_PER_BUS 2
/* These are the connections the layout fabric
* knows about. It doesn't really care about the
* input ones, but I thought I'd separate them
* to give them proper names. The thing is that
* Apple usually will distinguish the active output
* by GPIOs, while the active input is set directly
* on the codec. Hence we here tell the codec what
* we think is connected. This information is hard-
* coded below ... */
#define CC_SPEAKERS (1<<0)
#define CC_HEADPHONE (1<<1)
#define CC_LINEOUT (1<<2)
#define CC_DIGITALOUT (1<<3)
#define CC_LINEIN (1<<4)
#define CC_MICROPHONE (1<<5)
#define CC_DIGITALIN (1<<6)
/* pretty bogus but users complain...
* This is a flag saying that the LINEOUT
* should be renamed to HEADPHONE.
* be careful with input detection! */
#define CC_LINEOUT_LABELLED_HEADPHONE (1<<7)
struct codec_connection {
/* CC_ flags from above */
int connected;
/* codec dependent bit to be set in the aoa_codec.connected field.
* This intentionally doesn't have any generic flags because the
* fabric has to know the codec anyway and all codecs might have
* different connectors */
int codec_bit;
};
struct codec_connect_info {
char *name;
struct codec_connection *connections;
};
#define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
struct layout {
unsigned int layout_id;
struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
int flags;
/* if busname is not assigned, we use 'Master' below,
* so that our layout table doesn't need to be filled
* too much.
* We only assign these two if we expect to find more
* than one soundbus, i.e. on those machines with
* multiple layout-ids */
char *busname;
int pcmid;
};
MODULE_ALIAS("sound-layout-36");
MODULE_ALIAS("sound-layout-41");
MODULE_ALIAS("sound-layout-45");
MODULE_ALIAS("sound-layout-47");
MODULE_ALIAS("sound-layout-48");
MODULE_ALIAS("sound-layout-49");
MODULE_ALIAS("sound-layout-50");
MODULE_ALIAS("sound-layout-51");
MODULE_ALIAS("sound-layout-56");
MODULE_ALIAS("sound-layout-57");
MODULE_ALIAS("sound-layout-58");
MODULE_ALIAS("sound-layout-60");
MODULE_ALIAS("sound-layout-61");
MODULE_ALIAS("sound-layout-62");
MODULE_ALIAS("sound-layout-64");
MODULE_ALIAS("sound-layout-65");
MODULE_ALIAS("sound-layout-66");
MODULE_ALIAS("sound-layout-67");
MODULE_ALIAS("sound-layout-68");
MODULE_ALIAS("sound-layout-69");
MODULE_ALIAS("sound-layout-70");
MODULE_ALIAS("sound-layout-72");
MODULE_ALIAS("sound-layout-76");
MODULE_ALIAS("sound-layout-80");
MODULE_ALIAS("sound-layout-82");
MODULE_ALIAS("sound-layout-84");
MODULE_ALIAS("sound-layout-86");
MODULE_ALIAS("sound-layout-90");
MODULE_ALIAS("sound-layout-92");
MODULE_ALIAS("sound-layout-94");
MODULE_ALIAS("sound-layout-96");
MODULE_ALIAS("sound-layout-98");
MODULE_ALIAS("sound-layout-100");
/* onyx with all but microphone connected */
static struct codec_connection onyx_connections_nomic[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
.codec_bit = 0,
},
{
.connected = CC_DIGITALOUT,
.codec_bit = 1,
},
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{} /* terminate array by .connected == 0 */
};
/* onyx on machines without headphone */
static struct codec_connection onyx_connections_noheadphones[] = {
{
.connected = CC_SPEAKERS | CC_LINEOUT |
CC_LINEOUT_LABELLED_HEADPHONE,
.codec_bit = 0,
},
{
.connected = CC_DIGITALOUT,
.codec_bit = 1,
},
/* FIXME: are these correct? probably not for all the machines
* below ... If not this will need separating. */
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{
.connected = CC_MICROPHONE,
.codec_bit = 3,
},
{} /* terminate array by .connected == 0 */
};
/* onyx on machines with real line-out */
static struct codec_connection onyx_connections_reallineout[] = {
{
.connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
.codec_bit = 0,
},
{
.connected = CC_DIGITALOUT,
.codec_bit = 1,
},
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{} /* terminate array by .connected == 0 */
};
/* tas on machines without line out */
static struct codec_connection tas_connections_nolineout[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE,
.codec_bit = 0,
},
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{
.connected = CC_MICROPHONE,
.codec_bit = 3,
},
{} /* terminate array by .connected == 0 */
};
/* tas on machines with neither line out nor line in */
static struct codec_connection tas_connections_noline[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE,
.codec_bit = 0,
},
{
.connected = CC_MICROPHONE,
.codec_bit = 3,
},
{} /* terminate array by .connected == 0 */
};
/* tas on machines without microphone */
static struct codec_connection tas_connections_nomic[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
.codec_bit = 0,
},
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{} /* terminate array by .connected == 0 */
};
/* tas on machines with everything connected */
static struct codec_connection tas_connections_all[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
.codec_bit = 0,
},
{
.connected = CC_LINEIN,
.codec_bit = 2,
},
{
.connected = CC_MICROPHONE,
.codec_bit = 3,
},
{} /* terminate array by .connected == 0 */
};
static struct codec_connection toonie_connections[] = {
{
.connected = CC_SPEAKERS | CC_HEADPHONE,
.codec_bit = 0,
},
{} /* terminate array by .connected == 0 */
};
static struct codec_connection topaz_input[] = {
{
.connected = CC_DIGITALIN,
.codec_bit = 0,
},
{} /* terminate array by .connected == 0 */
};
static struct codec_connection topaz_output[] = {
{
.connected = CC_DIGITALOUT,
.codec_bit = 1,
},
{} /* terminate array by .connected == 0 */
};
static struct codec_connection topaz_inout[] = {
{
.connected = CC_DIGITALIN,
.codec_bit = 0,
},
{
.connected = CC_DIGITALOUT,
.codec_bit = 1,
},
{} /* terminate array by .connected == 0 */
};
static struct layout layouts[] = {
/* last PowerBooks (15" Oct 2005) */
{ .layout_id = 82,
.flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* PowerMac9,1 */
{ .layout_id = 60,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_reallineout,
},
},
/* PowerMac9,1 */
{ .layout_id = 61,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* PowerBook5,7 */
{ .layout_id = 64,
.flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
/* PowerBook5,7 */
{ .layout_id = 65,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* PowerBook5,9 [17" Oct 2005] */
{ .layout_id = 84,
.flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* PowerMac8,1 */
{ .layout_id = 45,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* Quad PowerMac (analog in, analog/digital out) */
{ .layout_id = 68,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_nomic,
},
},
/* Quad PowerMac (digital in) */
{ .layout_id = 69,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
.busname = "digital in", .pcmid = 1 },
/* Early 2005 PowerBook (PowerBook 5,6) */
{ .layout_id = 70,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nolineout,
},
},
/* PowerBook 5,4 */
{ .layout_id = 51,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nolineout,
},
},
/* PowerBook6,7 */
{ .layout_id = 80,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_noline,
},
},
/* PowerBook6,8 */
{ .layout_id = 72,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nolineout,
},
},
/* PowerMac8,2 */
{ .layout_id = 86,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_nomic,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_input,
},
},
/* PowerBook6,7 */
{ .layout_id = 92,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nolineout,
},
},
/* PowerMac10,1 (Mac Mini) */
{ .layout_id = 58,
.codecs[0] = {
.name = "toonie",
.connections = toonie_connections,
},
},
{
.layout_id = 96,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
/* unknown, untested, but this comes from Apple */
{ .layout_id = 41,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_all,
},
},
{ .layout_id = 36,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nomic,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_inout,
},
},
{ .layout_id = 47,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
{ .layout_id = 48,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
{ .layout_id = 49,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_nomic,
},
},
{ .layout_id = 50,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
{ .layout_id = 56,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
{ .layout_id = 57,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
{ .layout_id = 62,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_output,
},
},
{ .layout_id = 66,
.codecs[0] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
{ .layout_id = 67,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
},
{ .layout_id = 76,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_nomic,
},
.codecs[1] = {
.name = "topaz",
.connections = topaz_inout,
},
},
{ .layout_id = 90,
.codecs[0] = {
.name = "tas",
.connections = tas_connections_noline,
},
},
{ .layout_id = 94,
.codecs[0] = {
.name = "onyx",
/* but it has an external mic?? how to select? */
.connections = onyx_connections_noheadphones,
},
},
{ .layout_id = 98,
.codecs[0] = {
.name = "toonie",
.connections = toonie_connections,
},
},
{ .layout_id = 100,
.codecs[0] = {
.name = "topaz",
.connections = topaz_input,
},
.codecs[1] = {
.name = "onyx",
.connections = onyx_connections_noheadphones,
},
},
{}
};
static struct layout *find_layout_by_id(unsigned int id)
{
struct layout *l;
l = layouts;
while (l->layout_id) {
if (l->layout_id == id)
return l;
l++;
}
return NULL;
}
static void use_layout(struct layout *l)
{
int i;
for (i=0; i<MAX_CODECS_PER_BUS; i++) {
if (l->codecs[i].name) {
request_module("snd-aoa-codec-%s", l->codecs[i].name);
}
}
/* now we wait for the codecs to call us back */
}
struct layout_dev;
struct layout_dev_ptr {
struct layout_dev *ptr;
};
struct layout_dev {
struct list_head list;
struct soundbus_dev *sdev;
struct device_node *sound;
struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
struct layout *layout;
struct gpio_runtime gpio;
/* we need these for headphone/lineout detection */
struct snd_kcontrol *headphone_ctrl;
struct snd_kcontrol *lineout_ctrl;
struct snd_kcontrol *speaker_ctrl;
struct snd_kcontrol *headphone_detected_ctrl;
struct snd_kcontrol *lineout_detected_ctrl;
struct layout_dev_ptr selfptr_headphone;
struct layout_dev_ptr selfptr_lineout;
u32 have_lineout_detect:1,
have_headphone_detect:1,
switch_on_headphone:1,
switch_on_lineout:1;
};
static LIST_HEAD(layouts_list);
static int layouts_list_items;
/* this can go away but only if we allow multiple cards,
* make the fabric handle all the card stuff, etc... */
static struct layout_dev *layout_device;
static int control_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
#define AMP_CONTROL(n, description) \
static int n##_control_get(struct snd_kcontrol *kcontrol, \
struct snd_ctl_elem_value *ucontrol) \
{ \
struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
if (gpio->methods && gpio->methods->get_##n) \
ucontrol->value.integer.value[0] = \
gpio->methods->get_##n(gpio); \
return 0; \
} \
static int n##_control_put(struct snd_kcontrol *kcontrol, \
struct snd_ctl_elem_value *ucontrol) \
{ \
struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
if (gpio->methods && gpio->methods->get_##n) \
gpio->methods->set_##n(gpio, \
ucontrol->value.integer.value[0]); \
return 1; \
} \
static struct snd_kcontrol_new n##_ctl = { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = description, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
.info = control_info, \
.get = n##_control_get, \
.put = n##_control_put, \
}
AMP_CONTROL(headphone, "Headphone Switch");
AMP_CONTROL(speakers, "Speakers Switch");
AMP_CONTROL(lineout, "Line-Out Switch");
static int detect_choice_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
switch (kcontrol->private_value) {
case 0:
ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
break;
case 1:
ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
break;
default:
return -ENODEV;
}
return 0;
}
static int detect_choice_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
switch (kcontrol->private_value) {
case 0:
ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
break;
case 1:
ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
break;
default:
return -ENODEV;
}
return 1;
}
static struct snd_kcontrol_new headphone_detect_choice = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Detect Autoswitch",
.info = control_info,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.get = detect_choice_get,
.put = detect_choice_put,
.private_value = 0,
};
static struct snd_kcontrol_new lineout_detect_choice = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line-Out Detect Autoswitch",
.info = control_info,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.get = detect_choice_get,
.put = detect_choice_put,
.private_value = 1,
};
static int detected_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
int v;
switch (kcontrol->private_value) {
case 0:
v = ldev->gpio.methods->get_detect(&ldev->gpio,
AOA_NOTIFY_HEADPHONE);
break;
case 1:
v = ldev->gpio.methods->get_detect(&ldev->gpio,
AOA_NOTIFY_LINE_OUT);
break;
default:
return -ENODEV;
}
ucontrol->value.integer.value[0] = v;
return 0;
}
static struct snd_kcontrol_new headphone_detected = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Detected",
.info = control_info,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.get = detected_get,
.private_value = 0,
};
static struct snd_kcontrol_new lineout_detected = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line-Out Detected",
.info = control_info,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.get = detected_get,
.private_value = 1,
};
static int check_codec(struct aoa_codec *codec,
struct layout_dev *ldev,
struct codec_connect_info *cci)
{
const u32 *ref;
char propname[32];
struct codec_connection *cc;
/* if the codec has a 'codec' node, we require a reference */
if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
snprintf(propname, sizeof(propname),
"platform-%s-codec-ref", codec->name);
ref = of_get_property(ldev->sound, propname, NULL);
if (!ref) {
printk(KERN_INFO "snd-aoa-fabric-layout: "
"required property %s not present\n", propname);
return -ENODEV;
}
if (*ref != codec->node->linux_phandle) {
printk(KERN_INFO "snd-aoa-fabric-layout: "
"%s doesn't match!\n", propname);
return -ENODEV;
}
} else {
if (layouts_list_items != 1) {
printk(KERN_INFO "snd-aoa-fabric-layout: "
"more than one soundbus, but no references.\n");
return -ENODEV;
}
}
codec->soundbus_dev = ldev->sdev;
codec->gpio = &ldev->gpio;
cc = cci->connections;
if (!cc)
return -EINVAL;
printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
codec->connected = 0;
codec->fabric_data = cc;
while (cc->connected) {
codec->connected |= 1<<cc->codec_bit;
cc++;
}
return 0;
}
static int layout_found_codec(struct aoa_codec *codec)
{
struct layout_dev *ldev;
int i;
list_for_each_entry(ldev, &layouts_list, list) {
for (i=0; i<MAX_CODECS_PER_BUS; i++) {
if (!ldev->layout->codecs[i].name)
continue;
if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
if (check_codec(codec,
ldev,
&ldev->layout->codecs[i]) == 0)
return 0;
}
}
}
return -ENODEV;
}
static void layout_remove_codec(struct aoa_codec *codec)
{
int i;
/* here remove the codec from the layout dev's
* codec reference */
codec->soundbus_dev = NULL;
codec->gpio = NULL;
for (i=0; i<MAX_CODECS_PER_BUS; i++) {
}
}
static void layout_notify(void *data)
{
struct layout_dev_ptr *dptr = data;
struct layout_dev *ldev;
int v, update;
struct snd_kcontrol *detected, *c;
struct snd_card *card = aoa_get_card();
ldev = dptr->ptr;
if (data == &ldev->selfptr_headphone) {
v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
detected = ldev->headphone_detected_ctrl;
update = ldev->switch_on_headphone;
if (update) {
ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
ldev->gpio.methods->set_headphone(&ldev->gpio, v);
ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
}
} else if (data == &ldev->selfptr_lineout) {
v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
detected = ldev->lineout_detected_ctrl;
update = ldev->switch_on_lineout;
if (update) {
ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
ldev->gpio.methods->set_lineout(&ldev->gpio, v);
}
} else
return;
if (detected)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
if (update) {
c = ldev->headphone_ctrl;
if (c)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
c = ldev->speaker_ctrl;
if (c)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
c = ldev->lineout_ctrl;
if (c)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
}
}
static void layout_attached_codec(struct aoa_codec *codec)
{
struct codec_connection *cc;
struct snd_kcontrol *ctl;
int headphones, lineout;
struct layout_dev *ldev = layout_device;
/* need to add this codec to our codec array! */
cc = codec->fabric_data;
headphones = codec->gpio->methods->get_detect(codec->gpio,
AOA_NOTIFY_HEADPHONE);
lineout = codec->gpio->methods->get_detect(codec->gpio,
AOA_NOTIFY_LINE_OUT);
while (cc->connected) {
if (cc->connected & CC_SPEAKERS) {
if (headphones <= 0 && lineout <= 0)
ldev->gpio.methods->set_speakers(codec->gpio, 1);
ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
ldev->speaker_ctrl = ctl;
aoa_snd_ctl_add(ctl);
}
if (cc->connected & CC_HEADPHONE) {
if (headphones == 1)
ldev->gpio.methods->set_headphone(codec->gpio, 1);
ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
ldev->headphone_ctrl = ctl;
aoa_snd_ctl_add(ctl);
ldev->have_headphone_detect =
!ldev->gpio.methods
->set_notify(&ldev->gpio,
AOA_NOTIFY_HEADPHONE,
layout_notify,
&ldev->selfptr_headphone);
if (ldev->have_headphone_detect) {
ctl = snd_ctl_new1(&headphone_detect_choice,
ldev);
aoa_snd_ctl_add(ctl);
ctl = snd_ctl_new1(&headphone_detected,
ldev);
ldev->headphone_detected_ctrl = ctl;
aoa_snd_ctl_add(ctl);
}
}
if (cc->connected & CC_LINEOUT) {
if (lineout == 1)
ldev->gpio.methods->set_lineout(codec->gpio, 1);
ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
strlcpy(ctl->id.name,
"Headphone Switch", sizeof(ctl->id.name));
ldev->lineout_ctrl = ctl;
aoa_snd_ctl_add(ctl);
ldev->have_lineout_detect =
!ldev->gpio.methods
->set_notify(&ldev->gpio,
AOA_NOTIFY_LINE_OUT,
layout_notify,
&ldev->selfptr_lineout);
if (ldev->have_lineout_detect) {
ctl = snd_ctl_new1(&lineout_detect_choice,
ldev);
if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
strlcpy(ctl->id.name,
"Headphone Detect Autoswitch",
sizeof(ctl->id.name));
aoa_snd_ctl_add(ctl);
ctl = snd_ctl_new1(&lineout_detected,
ldev);
if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
strlcpy(ctl->id.name,
"Headphone Detected",
sizeof(ctl->id.name));
ldev->lineout_detected_ctrl = ctl;
aoa_snd_ctl_add(ctl);
}
}
cc++;
}
/* now update initial state */
if (ldev->have_headphone_detect)
layout_notify(&ldev->selfptr_headphone);
if (ldev->have_lineout_detect)
layout_notify(&ldev->selfptr_lineout);
}
static struct aoa_fabric layout_fabric = {
.name = "SoundByLayout",
.owner = THIS_MODULE,
.found_codec = layout_found_codec,
.remove_codec = layout_remove_codec,
.attached_codec = layout_attached_codec,
};
static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
{
struct device_node *sound = NULL;
const unsigned int *layout_id;
struct layout *layout;
struct layout_dev *ldev = NULL;
int err;
/* hm, currently we can only have one ... */
if (layout_device)
return -ENODEV;
/* by breaking out we keep a reference */
while ((sound = of_get_next_child(sdev->ofdev.node, sound))) {
if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
break;
}
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);
layout = find_layout_by_id(*layout_id);
if (!layout) {
printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
goto outnodev;
}
ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
if (!ldev)
goto outnodev;
layout_device = ldev;
ldev->sdev = sdev;
ldev->sound = sound;
ldev->layout = layout;
ldev->gpio.node = sound->parent;
switch (layout->layout_id) {
case 41: /* that unknown machine no one seems to have */
case 51: /* PowerBook5,4 */
case 58: /* Mac Mini */
ldev->gpio.methods = ftr_gpio_methods;
printk(KERN_DEBUG
"snd-aoa-fabric-layout: Using direct GPIOs\n");
break;
default:
ldev->gpio.methods = pmf_gpio_methods;
printk(KERN_DEBUG
"snd-aoa-fabric-layout: Using PMF GPIOs\n");
}
ldev->selfptr_headphone.ptr = ldev;
ldev->selfptr_lineout.ptr = ldev;
sdev->ofdev.dev.driver_data = ldev;
list_add(&ldev->list, &layouts_list);
layouts_list_items++;
/* assign these before registering ourselves, so
* callbacks that are done during registration
* already have the values */
sdev->pcmid = ldev->layout->pcmid;
if (ldev->layout->busname) {
sdev->pcmname = ldev->layout->busname;
} else {
sdev->pcmname = "Master";
}
ldev->gpio.methods->init(&ldev->gpio);
err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
if (err && err != -EALREADY) {
printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
" another fabric is active!\n");
goto outlistdel;
}
use_layout(layout);
ldev->switch_on_headphone = 1;
ldev->switch_on_lineout = 1;
return 0;
outlistdel:
/* we won't be using these then... */
ldev->gpio.methods->exit(&ldev->gpio);
/* reset if we didn't use it */
sdev->pcmname = NULL;
sdev->pcmid = -1;
list_del(&ldev->list);
layouts_list_items--;
outnodev:
of_node_put(sound);
layout_device = NULL;
kfree(ldev);
return -ENODEV;
}
static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
{
struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
int i;
for (i=0; i<MAX_CODECS_PER_BUS; i++) {
if (ldev->codecs[i]) {
aoa_fabric_unlink_codec(ldev->codecs[i]);
}
ldev->codecs[i] = NULL;
}
list_del(&ldev->list);
layouts_list_items--;
of_node_put(ldev->sound);
ldev->gpio.methods->set_notify(&ldev->gpio,
AOA_NOTIFY_HEADPHONE,
NULL,
NULL);
ldev->gpio.methods->set_notify(&ldev->gpio,
AOA_NOTIFY_LINE_OUT,
NULL,
NULL);
ldev->gpio.methods->exit(&ldev->gpio);
layout_device = NULL;
kfree(ldev);
sdev->pcmid = -1;
sdev->pcmname = NULL;
return 0;
}
#ifdef CONFIG_PM
static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
{
struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
ldev->gpio.methods->all_amps_off(&ldev->gpio);
return 0;
}
static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
{
struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
ldev->gpio.methods->all_amps_restore(&ldev->gpio);
return 0;
}
#endif
static struct soundbus_driver aoa_soundbus_driver = {
.name = "snd_aoa_soundbus_drv",
.owner = THIS_MODULE,
.probe = aoa_fabric_layout_probe,
.remove = aoa_fabric_layout_remove,
#ifdef CONFIG_PM
.suspend = aoa_fabric_layout_suspend,
.resume = aoa_fabric_layout_resume,
#endif
.driver = {
.owner = THIS_MODULE,
}
};
static int __init aoa_fabric_layout_init(void)
{
int err;
err = soundbus_register_driver(&aoa_soundbus_driver);
if (err)
return err;
return 0;
}
static void __exit aoa_fabric_layout_exit(void)
{
soundbus_unregister_driver(&aoa_soundbus_driver);
aoa_fabric_unregister(&layout_fabric);
}
module_init(aoa_fabric_layout_init);
module_exit(aoa_fabric_layout_exit);
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