[ALSA] add sigmatel codec support

HDA generic driver,HDA Codec driver
Add initial SigmaTel codec support for 9200 and 922x. Note that
this hda patch relies on the configuration default registers to
be set correctly (normally by BIOS/firmware) in order for it to
set up pin widgets properly. There's a test switch in the patch
so it will work with the SigmaTel reference boards that are usually
plugged into a system that doesn't set the configuration default
registers. It supports 2 channel analog out and line/mic in. I
plan to add >2 channel support and spdif support shortly.
Please apply.

Signed-off-by: Matt <matt@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

4 files changed, 565 insertions, 1 deletions

diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 570a59d33b41..bd8cb33c4fb4 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -1,5 +1,5 @@
 snd-hda-intel-objs := hda_intel.o
-snd-hda-codec-objs := hda_codec.o hda_generic.o patch_realtek.o patch_cmedia.o patch_analog.o
+snd-hda-codec-objs := hda_codec.o hda_generic.o patch_realtek.o patch_cmedia.o patch_analog.o patch_sigmatel.o
 ifdef CONFIG_PROC_FS
 snd-hda-codec-objs += hda_proc.o
 endif
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 9ed117ac0c09..be6cba349394 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -51,6 +51,7 @@ static struct hda_vendor_id hda_vendor_ids[] = {
         { 0x10ec, "Realtek" },
         { 0x13f6, "C-Media" },
         { 0x434d, "C-Media" },
+        { 0x8384, "SigmaTel" },
         {} /* terminator */
 };
 
diff --git a/sound/pci/hda/hda_patch.h b/sound/pci/hda/hda_patch.h
index cf6abce42bc9..a5de684b6944 100644
--- a/sound/pci/hda/hda_patch.h
+++ b/sound/pci/hda/hda_patch.h
@@ -8,10 +8,13 @@ extern struct hda_codec_preset snd_hda_preset_realtek[];
 extern struct hda_codec_preset snd_hda_preset_cmedia[];
 /* Analog Devices codecs */
 extern struct hda_codec_preset snd_hda_preset_analog[];
+/* SigmaTel codecs */
+extern struct hda_codec_preset snd_hda_preset_sigmatel[];
 
 static const struct hda_codec_preset *hda_preset_tables[] = {
         snd_hda_preset_realtek,
         snd_hda_preset_cmedia,
         snd_hda_preset_analog,
+        snd_hda_preset_sigmatel,
         NULL
 };
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
new file mode 100644
index 000000000000..1534e20af63d
--- /dev/null
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -0,0 +1,560 @@
+/*
+ * Universal Interface for Intel High Definition Audio Codec
+ *
+ * HD audio interface patch for SigmaTel STAC92xx
+ *
+ * Copyright (c) 2005 Embedded Alley Solutions, Inc.
+ * <matt@embeddedalley.com>
+ *
+ * Based on patch_cmedia.c and patch_realtek.c
+ * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
+ *
+ *  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 <sound/driver.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <sound/core.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+
+#undef STAC_TEST
+
+struct sigmatel_spec {
+        /* playback */
+        struct hda_multi_out multiout;
+        hda_nid_t playback_nid;
+
+        /* capture */
+        hda_nid_t *adc_nids;
+        hda_nid_t *mux_nids;
+        unsigned int num_adcs;
+        hda_nid_t capture_nid;
+
+        /* power management*/
+        hda_nid_t *pstate_nids;
+        unsigned int num_pstates;
+
+        /* pin widgets */
+        hda_nid_t *pin_nids;
+        unsigned int num_pins;
+#ifdef STAC_TEST
+        unsigned int *pin_configs;
+#endif
+
+        /* codec specific stuff */
+        struct hda_verb *init;
+        snd_kcontrol_new_t *mixer;
+
+        /* capture source */
+        const struct hda_input_mux *input_mux;
+        unsigned int cur_mux[2];
+
+        /* channel mode */
+        unsigned int num_ch_modes;
+        unsigned int cur_ch_mode;
+        const struct sigmatel_channel_mode *channel_modes;
+
+        struct hda_pcm pcm_rec[1];      /* PCM information */
+};
+
+static hda_nid_t stac9200_adc_nids[1] = {
+        0x03,
+};
+
+static hda_nid_t stac9200_mux_nids[1] = {
+        0x0c,
+};
+
+static hda_nid_t stac9200_dac_nids[1] = {
+        0x02,
+};
+
+static hda_nid_t stac9200_pstate_nids[3] = {
+        0x01, 0x02, 0x03,
+};
+
+static hda_nid_t stac9200_pin_nids[8] = {
+        0x08, 0x09, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12,
+};
+
+static hda_nid_t stac922x_adc_nids[2] = {
+        0x06, 0x07,
+};
+
+static hda_nid_t stac922x_mux_nids[2] = {
+        0x12, 0x13,
+};
+
+static hda_nid_t stac922x_dac_nids[4] = {
+        0x02, 0x03, 0x04, 0x05,
+};
+
+static hda_nid_t stac922x_pstate_nids[7] = {
+        0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+};
+
+static hda_nid_t stac922x_pin_nids[10] = {
+        0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
+        0x0f, 0x10, 0x11, 0x15, 0x1b,
+};
+
+static int stac92xx_mux_enum_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_input_mux_info(spec->input_mux, uinfo);
+}
+
+static int stac92xx_mux_enum_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+        ucontrol->value.enumerated.item[0] = spec->cur_mux[adc_idx];
+        return 0;
+}
+
+static int stac92xx_mux_enum_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct sigmatel_spec *spec = codec->spec;
+        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+        return snd_hda_input_mux_put(codec, spec->input_mux, ucontrol,
+                                     spec->mux_nids[adc_idx], &spec->cur_mux[adc_idx]);
+}
+
+static struct hda_verb stac9200_ch2_init[] = {
+        /* set dac0mux for dac converter */
+        { 0x07, 0x701, 0x00},
+        {}
+};
+
+static struct hda_verb stac922x_ch2_init[] = {
+        /* set master volume and direct control */      
+        { 0x16, 0x70f, 0xff},
+        {}
+};
+
+struct sigmatel_channel_mode {
+        unsigned int channels;
+        const struct hda_verb *sequence;
+};
+
+static snd_kcontrol_new_t stac9200_mixer[] = {
+        HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT),
+        HDA_CODEC_MUTE("Master Playback Switch", 0xb, 0, HDA_OUTPUT),
+        {
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+                .name = "Input Source",
+                .count = 1,
+                .info = stac92xx_mux_enum_info,
+                .get = stac92xx_mux_enum_get,
+                .put = stac92xx_mux_enum_put,
+        },
+        HDA_CODEC_VOLUME("Capture Volume", 0x0a, 0, HDA_OUTPUT),
+        HDA_CODEC_MUTE("Capture Switch", 0x0a, 0, HDA_OUTPUT),
+        HDA_CODEC_VOLUME("Input Mux Volume", 0x0c, 0, HDA_OUTPUT),
+        { } /* end */
+};
+
+static snd_kcontrol_new_t stac922x_mixer[] = {
+        HDA_CODEC_VOLUME("PCM Playback Volume", 0x2, 0x0, HDA_OUTPUT),
+        HDA_CODEC_MUTE("PCM Playback Switch", 0x2, 0x0, HDA_OUTPUT),
+        {
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+                .name = "Input Source",
+                .count = 1,
+                .info = stac92xx_mux_enum_info,
+                .get = stac92xx_mux_enum_get,
+                .put = stac92xx_mux_enum_put,
+        },
+        HDA_CODEC_VOLUME("Capture Volume", 0x17, 0x0, HDA_INPUT),
+        HDA_CODEC_MUTE("Capture Switch", 0x17, 0x0, HDA_INPUT),
+        HDA_CODEC_VOLUME("Mux Capture Volume", 0x12, 0x0, HDA_OUTPUT),
+        { } /* end */
+};
+
+static struct hda_input_mux stac9200_input_mux = {
+        .num_items = 5,
+        .items = {
+                { "Port B", 0x0 },
+                { "Port C", 0x1 },
+                { "Port D", 0x2 },
+                { "Port A", 0x3 },
+                { "CD", 0x4 },
+        }
+};
+
+static struct hda_input_mux stac922x_input_mux = {
+        .num_items = 7,
+        .items = {
+                { "Port E", 0x0 },
+                { "CD", 0x1 },
+                { "Port F", 0x2 },
+                { "Port B", 0x3 },
+                { "Port C", 0x4 },
+                { "Port D", 0x5 },
+                { "Port A", 0x6 },
+        }
+};
+
+static int stac92xx_build_controls(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        int err;
+
+        err = snd_hda_add_new_ctls(codec, spec->mixer);
+        if (err < 0)
+                return err;
+
+        return 0;
+}
+
+#ifdef STAC_TEST
+static unsigned int stac9200_pin_configs[8] = {
+        0x40000100, 0x40000100, 0x0221401f, 0x01114010,
+        0x02a19020, 0x01a19021, 0x90100140, 0x01813122,
+};
+
+static unsigned int stac922x_pin_configs[14] = {
+        0x40000100, 0x40000100, 0x40000100, 0x01114010,
+        0x01813122, 0x40000100, 0x40000100, 0x40000100,
+        0x40000100, 0x40000100,
+};
+
+static void stac92xx_set_config_regs(struct hda_codec *codec)
+{
+        int i;
+        struct sigmatel_spec *spec = codec->spec;
+        unsigned int pin_cfg;
+
+        for (i=0; i < spec->num_pins; i++) {
+                snd_hda_codec_write(codec, spec->pin_nids[i], 0,
+                                    AC_VERB_SET_CONFIG_DEFAULT_BYTES_0,
+                                    spec->pin_configs[i] & 0x000000ff);
+                snd_hda_codec_write(codec, spec->pin_nids[i], 0,
+                                    AC_VERB_SET_CONFIG_DEFAULT_BYTES_1,
+                                    (spec->pin_configs[i] & 0x0000ff00) >> 8);
+                snd_hda_codec_write(codec, spec->pin_nids[i], 0,
+                                    AC_VERB_SET_CONFIG_DEFAULT_BYTES_2,
+                                    (spec->pin_configs[i] & 0x00ff0000) >> 16);
+                snd_hda_codec_write(codec, spec->pin_nids[i], 0,
+                                    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3,
+                                    spec->pin_configs[i] >> 24);
+                pin_cfg = snd_hda_codec_read(codec, spec->pin_nids[i], 0,
+                                             AC_VERB_GET_CONFIG_DEFAULT,
+                                             0x00);     
+                printk("pin nid %2.2x pin config %8.8x\n", spec->pin_nids[i], pin_cfg);
+        }
+}
+#endif
+
+static int stac92xx_set_pinctl(struct hda_codec *codec, hda_nid_t nid, unsigned int value)
+{
+        unsigned int pin_ctl;
+
+        pin_ctl = snd_hda_codec_read(codec, nid, 0,
+                                     AC_VERB_GET_PIN_WIDGET_CONTROL,
+                                     0x00);
+        snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL,
+                            pin_ctl | value);
+
+        return 0;
+}
+
+static int stac92xx_set_vref(struct hda_codec *codec, hda_nid_t nid)
+{
+        unsigned int vref_caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP) >> AC_PINCAP_VREF_SHIFT;
+        unsigned int vref_ctl = AC_PINCTL_VREF_HIZ;
+
+        if (vref_caps & AC_PINCAP_VREF_100)
+                vref_ctl = AC_PINCTL_VREF_100;
+        else if (vref_caps & AC_PINCAP_VREF_80)
+                vref_ctl = AC_PINCTL_VREF_80;
+        else if (vref_caps & AC_PINCAP_VREF_50)
+                vref_ctl = AC_PINCTL_VREF_50;
+        else if (vref_caps & AC_PINCAP_VREF_GRD)
+                vref_ctl = AC_PINCTL_VREF_GRD;
+
+        stac92xx_set_pinctl(codec, nid, vref_ctl);
+        
+        return 0;
+}
+
+static int stac92xx_config_pin(struct hda_codec *codec, hda_nid_t nid, unsigned int pin_cfg)
+{
+        switch((pin_cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT) {
+                case AC_JACK_HP_OUT:
+                        /* Enable HP amp */
+                        stac92xx_set_pinctl(codec, nid, AC_PINCTL_HP_EN);
+                        /* Fall through */
+                case AC_JACK_LINE_OUT:
+                case AC_JACK_SPEAKER:
+                        /* Enable output */
+                        stac92xx_set_pinctl(codec, nid, AC_PINCTL_OUT_EN);
+                        break;
+                case AC_JACK_MIC_IN:
+                        /* Set vref */
+                        stac92xx_set_vref(codec, nid);
+                case AC_JACK_CD:
+                case AC_JACK_LINE_IN:
+                case AC_JACK_AUX:
+                        /* Enable input */
+                        stac92xx_set_pinctl(codec, nid, AC_PINCTL_IN_EN);
+                        break;
+        }
+
+        return 0;
+}
+
+static int stac92xx_config_pins(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        int i;
+        unsigned int pin_cfg;
+
+        for (i=0; i < spec->num_pins; i++) {
+                /* Default to disabled */
+                snd_hda_codec_write(codec, spec->pin_nids[i], 0,
+                                    AC_VERB_SET_PIN_WIDGET_CONTROL,
+                                    0x00);
+
+                pin_cfg = snd_hda_codec_read(codec, spec->pin_nids[i], 0,
+                                             AC_VERB_GET_CONFIG_DEFAULT,
+                                             0x00);
+                if (((pin_cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT) == AC_JACK_PORT_NONE)
+                        continue;       /* Move on */
+
+                stac92xx_config_pin(codec, spec->pin_nids[i], pin_cfg);
+        }
+
+        return 0;
+}
+
+static int stac92xx_init(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        int i;
+
+        for (i=0; i < spec->num_pstates; i++)
+                snd_hda_codec_write(codec, spec->pstate_nids[i], 0,
+                                    AC_VERB_SET_POWER_STATE, 0x00);
+
+        mdelay(100);
+
+        snd_hda_sequence_write(codec, spec->init);
+
+#ifdef STAC_TEST
+        stac92xx_set_config_regs(codec);
+#endif
+
+        stac92xx_config_pins(codec);
+
+        return 0;
+}
+
+/*
+ * Analog playback callbacks
+ */
+static int stac92xx_playback_pcm_open(struct hda_pcm_stream *hinfo,
+                                      struct hda_codec *codec,
+                                      snd_pcm_substream_t *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream);
+}
+
+static int stac92xx_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+                                         struct hda_codec *codec,
+                                         unsigned int stream_tag,
+                                         unsigned int format,
+                                         snd_pcm_substream_t *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_multi_out_analog_prepare(codec, &spec->multiout, stream_tag,
+                                                format, substream);
+}
+
+static int stac92xx_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
+                                        struct hda_codec *codec,
+                                        snd_pcm_substream_t *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
+}
+
+/*
+ * Analog capture callbacks
+ */
+static int stac92xx_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
+                                        struct hda_codec *codec,
+                                        unsigned int stream_tag,
+                                        unsigned int format,
+                                        snd_pcm_substream_t *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+
+        snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
+                                   stream_tag, 0, format);
+        return 0;
+}
+
+static int stac92xx_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
+                                        struct hda_codec *codec,
+                                        snd_pcm_substream_t *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+
+        snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number], 0, 0, 0);
+        return 0;
+}
+
+static struct hda_pcm_stream stac92xx_pcm_analog_playback = {
+        .substreams = 1,
+        .channels_min = 2,
+        .channels_max = 2,
+        .nid = 0x02, /* NID to query formats and rates */
+        .ops = {
+                .open = stac92xx_playback_pcm_open,
+                .prepare = stac92xx_playback_pcm_prepare,
+                .cleanup = stac92xx_playback_pcm_cleanup
+        },
+};
+
+static struct hda_pcm_stream stac92xx_pcm_analog_capture = {
+        .substreams = 2,
+        .channels_min = 2,
+        .channels_max = 2,
+        .nid = 0x06, /* NID to query formats and rates */
+        .ops = {
+                .prepare = stac92xx_capture_pcm_prepare,
+                .cleanup = stac92xx_capture_pcm_cleanup
+        },
+};
+
+static int stac92xx_build_pcms(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        struct hda_pcm *info = spec->pcm_rec;
+
+        codec->num_pcms = 1;
+        codec->pcm_info = info;
+
+        info->name = "STAC92xx";
+        info->stream[SNDRV_PCM_STREAM_PLAYBACK] = stac92xx_pcm_analog_playback;
+        info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->playback_nid;
+        info->stream[SNDRV_PCM_STREAM_CAPTURE] = stac92xx_pcm_analog_capture;
+        info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->capture_nid;
+
+        return 0;
+}
+
+static void stac92xx_free(struct hda_codec *codec)
+{
+        kfree(codec->spec);
+}
+
+static struct hda_codec_ops stac92xx_patch_ops = {
+        .build_controls = stac92xx_build_controls,
+        .build_pcms = stac92xx_build_pcms,
+        .init = stac92xx_init,
+        .free = stac92xx_free,
+};
+
+static int patch_stac9200(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec;
+
+        spec  = kcalloc(1, sizeof(*spec), GFP_KERNEL);
+        if (spec == NULL)
+                return -ENOMEM;
+
+        codec->spec = spec;
+
+        spec->multiout.max_channels = 2;
+        spec->multiout.num_dacs = 1;
+        spec->multiout.dac_nids = stac9200_dac_nids;
+        spec->adc_nids = stac9200_adc_nids;
+        spec->mux_nids = stac9200_mux_nids;
+        spec->input_mux = &stac9200_input_mux;
+        spec->pstate_nids = stac9200_pstate_nids;
+        spec->num_pstates = 3;
+        spec->pin_nids = stac9200_pin_nids;
+#ifdef STAC_TEST
+        spec->pin_configs = stac9200_pin_configs;
+#endif
+        spec->num_pins = 8;
+        spec->init = stac9200_ch2_init;
+        spec->mixer = stac9200_mixer;
+        spec->playback_nid = 0x02;
+        spec->capture_nid = 0x03;
+
+        codec->patch_ops = stac92xx_patch_ops;
+
+        return 0;
+}
+
+static int patch_stac922x(struct hda_codec *codec)
+{
+        struct sigmatel_spec *spec;
+
+        spec  = kcalloc(1, sizeof(*spec), GFP_KERNEL);
+        if (spec == NULL)
+                return -ENOMEM;
+
+        codec->spec = spec;
+
+        spec->multiout.max_channels = 2;
+        spec->multiout.num_dacs = 4;
+        spec->multiout.dac_nids = stac922x_dac_nids;
+        spec->adc_nids = stac922x_adc_nids;
+        spec->mux_nids = stac922x_mux_nids;
+        spec->input_mux = &stac922x_input_mux;
+        spec->pstate_nids = stac922x_pstate_nids;
+        spec->num_pstates = 7;
+        spec->pin_nids = stac922x_pin_nids;
+#ifdef STAC_TEST
+        spec->pin_configs = stac922x_pin_configs;
+#endif
+        spec->num_pins = 10;
+        spec->init = stac922x_ch2_init;
+        spec->mixer = stac922x_mixer;
+        spec->playback_nid = 0x02;
+        spec->capture_nid = 0x06;
+
+        codec->patch_ops = stac92xx_patch_ops;
+
+        return 0;
+}
+
+/*
+ * patch entries
+ */
+struct hda_codec_preset snd_hda_preset_sigmatel[] = {
+        { .id = 0x83847690, .name = "STAC9200", .patch = patch_stac9200 },
+        { .id = 0x83847882, .name = "STAC9220 A1", .patch = patch_stac922x },
+        { .id = 0x83847680, .name = "STAC9221 A1", .patch = patch_stac922x },
+        { .id = 0x83847880, .name = "STAC9220 A2", .patch = patch_stac922x },
+        { .id = 0x83847681, .name = "STAC9220D/9223D A2", .patch = patch_stac922x },
+        { .id = 0x83847682, .name = "STAC9221 A2", .patch = patch_stac922x },
+        { .id = 0x83847683, .name = "STAC9221D A2", .patch = patch_stac922x },
+        {} /* terminator */
+};