This interface can be used for out-of-band communication
with codecs for debugging purposes.
+config SND_HDA_INPUT_BEEP
+ bool "Support digital beep via input layer"
+ depends on SND_HDA_INTEL
+ depends on INPUT=y || INPUT=SND_HDA_INTEL
+ help
+ Say Y here to build a digital beep interface for HD-audio
+ driver. This interface is used to generate digital beeps.
+
config SND_HDA_CODEC_REALTEK
bool "Build Realtek HD-audio codec support"
depends on SND_HDA_INTEL
snd-hda-intel-y += hda_codec.o
snd-hda-intel-$(CONFIG_PROC_FS) += hda_proc.o
snd-hda-intel-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
+snd-hda-intel-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o
snd-hda-intel-$(CONFIG_SND_HDA_GENERIC) += hda_generic.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_REALTEK) += patch_realtek.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CMEDIA) += patch_cmedia.o
--- /dev/null
+/*
+ * Digital Beep Input Interface for HD-audio codec
+ *
+ * Author: Matthew Ranostay <mranostay@embeddedalley.com>
+ * Copyright (c) 2008 Embedded Alley Solutions Inc
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/input.h>
+#include <linux/pci.h>
+#include <linux/workqueue.h>
+#include <sound/core.h>
+#include "hda_beep.h"
+
+enum {
+ DIGBEEP_HZ_STEP = 46875, /* 46.875 Hz */
+ DIGBEEP_HZ_MIN = 93750, /* 93.750 Hz */
+ DIGBEEP_HZ_MAX = 12000000, /* 12 KHz */
+};
+
+static void snd_hda_generate_beep(struct work_struct *work)
+{
+ struct hda_beep *beep =
+ container_of(work, struct hda_beep, beep_work);
+ struct hda_codec *codec = beep->codec;
+
+ /* generate tone */
+ snd_hda_codec_write_cache(codec, beep->nid, 0,
+ AC_VERB_SET_BEEP_CONTROL, beep->tone);
+}
+
+static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int hz)
+{
+ struct hda_beep *beep = input_get_drvdata(dev);
+
+ switch (code) {
+ case SND_BELL:
+ if (hz)
+ hz = 1000;
+ case SND_TONE:
+ hz *= 1000; /* fixed point */
+ hz = hz - DIGBEEP_HZ_MIN;
+ if (hz < 0)
+ hz = 0; /* turn off PC beep*/
+ else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))
+ hz = 0xff;
+ else {
+ hz /= DIGBEEP_HZ_STEP;
+ hz++;
+ }
+ break;
+ default:
+ return -1;
+ }
+ beep->tone = hz;
+
+ /* schedule beep event */
+ schedule_work(&beep->beep_work);
+ return 0;
+}
+
+int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
+{
+ struct input_dev *input_dev;
+ struct hda_beep *beep;
+ int err;
+
+ beep = kzalloc(sizeof(*beep), GFP_KERNEL);
+ if (beep == NULL)
+ return -ENOMEM;
+ snprintf(beep->phys, sizeof(beep->phys),
+ "card%d/codec#%d/beep0", codec->bus->card->number, codec->addr);
+ input_dev = input_allocate_device();
+
+ /* setup digital beep device */
+ input_dev->name = "HDA Digital PCBeep";
+ input_dev->phys = beep->phys;
+ input_dev->id.bustype = BUS_PCI;
+
+ input_dev->id.vendor = codec->vendor_id >> 16;
+ input_dev->id.product = codec->vendor_id & 0xffff;
+ input_dev->id.version = 0x01;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ input_dev->event = snd_hda_beep_event;
+ input_dev->dev.parent = &codec->bus->pci->dev;
+ input_set_drvdata(input_dev, beep);
+
+ err = input_register_device(input_dev);
+ if (err < 0) {
+ kfree(input_dev);
+ kfree(beep);
+ return err;
+ }
+
+ /* enable linear scale */
+ snd_hda_codec_write(codec, nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_2, 0x01);
+
+ beep->nid = nid;
+ beep->dev = input_dev;
+ beep->codec = codec;
+ codec->beep = beep;
+
+ INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
+ return 0;
+}
+
+void snd_hda_detach_beep_device(struct hda_codec *codec)
+{
+ struct hda_beep *beep = codec->beep;
+ if (beep) {
+ cancel_work_sync(&beep->beep_work);
+ flush_scheduled_work();
+
+ input_unregister_device(beep->dev);
+ kfree(beep);
+ }
+}
--- /dev/null
+/*
+ * Digital Beep Input Interface for HD-audio codec
+ *
+ * Author: Matthew Ranostay <mranostay@embeddedalley.com>
+ * Copyright (c) 2008 Embedded Alley Solutions Inc
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __SOUND_HDA_BEEP_H
+#define __SOUND_HDA_BEEP_H
+
+#include "hda_codec.h"
+
+/* beep information */
+struct hda_beep {
+ struct input_dev *dev;
+ struct hda_codec *codec;
+ char phys[32];
+ int tone;
+ int nid;
+ struct work_struct beep_work; /* scheduled task for beep event */
+};
+
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
+void snd_hda_detach_beep_device(struct hda_codec *codec);
+#else
+#define snd_hda_attach_beep_device(...)
+#define snd_hda_detach_beep_device(...)
+#endif
+#endif
*/
struct hda_bus;
+struct hda_beep;
struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;
/* codec specific info */
void *spec;
+ /* beep device */
+ struct hda_beep *beep;
+
/* widget capabilities cache */
unsigned int num_nodes;
hda_nid_t start_nid;
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_patch.h"
+#include "hda_beep.h"
#define NUM_CONTROL_ALLOC 32
#define STAC_PWR_EVENT 0x20
unsigned int num_dmuxes;
hda_nid_t dig_in_nid;
hda_nid_t mono_nid;
+ hda_nid_t anabeep_nid;
+ hda_nid_t digbeep_nid;
/* pin widgets */
hda_nid_t *pin_nids;
static struct hda_verb stac927x_core_init[] = {
/* set master volume and direct control */
{ 0x24, AC_VERB_SET_VOLUME_KNOB_CONTROL, 0xff},
+ /* enable analog pc beep path */
+ { 0x01, AC_VERB_SET_DIGI_CONVERT_2, 1 << 5},
{}
};
HDA_CODEC_MUTE_IDX("Capture Switch", 0x1, 0x1d, 0x0, HDA_OUTPUT),
HDA_CODEC_VOLUME_IDX("Capture Mux Volume", 0x1, 0x1b, 0x0, HDA_OUTPUT),
+ /* analog pc-beep replaced with digital beep support */
+ /*
HDA_CODEC_VOLUME("PC Beep Volume", 0x17, 0x2, HDA_INPUT),
HDA_CODEC_MUTE("PC Beep Switch", 0x17, 0x2, HDA_INPUT),
+ */
HDA_CODEC_MUTE("Analog Loopback 1", 0x17, 0x3, HDA_INPUT),
HDA_CODEC_MUTE("Analog Loopback 2", 0x17, 0x4, HDA_INPUT),
"Mono Mux", spec->mono_nid);
}
+/* create PC beep volume controls */
+static int stac92xx_auto_create_beep_ctls(struct hda_codec *codec,
+ hda_nid_t nid)
+{
+ struct sigmatel_spec *spec = codec->spec;
+ u32 caps = query_amp_caps(codec, nid, HDA_OUTPUT);
+ int err;
+
+ /* check for mute support for the the amp */
+ if ((caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT) {
+ err = stac92xx_add_control(spec, STAC_CTL_WIDGET_MUTE,
+ "PC Beep Playback Switch",
+ HDA_COMPOSE_AMP_VAL(nid, 1, 0, HDA_OUTPUT));
+ if (err < 0)
+ return err;
+ }
+
+ /* check to see if there is volume support for the amp */
+ if ((caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT) {
+ err = stac92xx_add_control(spec, STAC_CTL_WIDGET_VOL,
+ "PC Beep Playback Volume",
+ HDA_COMPOSE_AMP_VAL(nid, 1, 0, HDA_OUTPUT));
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
/* labels for dmic mux inputs */
static const char *stac92xx_dmic_labels[5] = {
"Analog Inputs", "Digital Mic 1", "Digital Mic 2",
if (err < 0)
return err;
+ /* setup analog beep controls */
+ if (spec->anabeep_nid > 0) {
+ err = stac92xx_auto_create_beep_ctls(codec,
+ spec->anabeep_nid);
+ if (err < 0)
+ return err;
+ }
+
+ /* setup digital beep controls and input device */
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+ if (spec->digbeep_nid > 0) {
+ hda_nid_t nid = spec->digbeep_nid;
+
+ err = stac92xx_auto_create_beep_ctls(codec, nid);
+ if (err < 0)
+ return err;
+ err = snd_hda_attach_beep_device(codec, nid);
+ if (err < 0)
+ return err;
+ }
+#endif
+
if (hp_speaker_swap == 1) {
/* Restore the hp_outs and line_outs */
memcpy(spec->autocfg.hp_pins, spec->autocfg.line_out_pins,
kfree(spec->bios_pin_configs);
kfree(spec);
+ snd_hda_detach_beep_device(codec);
}
static void stac92xx_set_pinctl(struct hda_codec *codec, hda_nid_t nid,
spec->aloopback_mask = 0x01;
spec->aloopback_shift = 8;
+ spec->digbeep_nid = 0x1c;
spec->mux_nids = stac92hd73xx_mux_nids;
spec->adc_nids = stac92hd73xx_adc_nids;
spec->dmic_nids = stac92hd73xx_dmic_nids;
spec->gpio_dir = 0x01;
spec->gpio_data = 0x01;
+ spec->digbeep_nid = 0x26;
spec->mux_nids = stac92hd71bxx_mux_nids;
spec->adc_nids = stac92hd71bxx_adc_nids;
spec->dmic_nids = stac92hd71bxx_dmic_nids;
stac92xx_set_config_regs(codec);
}
+ spec->digbeep_nid = 0x23;
spec->adc_nids = stac927x_adc_nids;
spec->num_adcs = ARRAY_SIZE(stac927x_adc_nids);
spec->mux_nids = stac927x_mux_nids;
stac92xx_set_config_regs(codec);
}
+ spec->digbeep_nid = 0x23;
spec->adc_nids = stac9205_adc_nids;
spec->num_adcs = ARRAY_SIZE(stac9205_adc_nids);
spec->mux_nids = stac9205_mux_nids;
projects / linux-beck.git / commitdiff