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/*
* Universal Interface for Intel High Definition Audio Codec
*
* HD audio interface patch for Silicon Labs 3054/5 modem codec
*
* Copyright (c) 2005 Sasha Khapyorsky <sashak@alsa-project.org>
* 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"
/* si3054 verbs */
#define SI3054_VERB_READ_NODE 0x900
#define SI3054_VERB_WRITE_NODE 0x100
/* si3054 nodes (registers) */
#define SI3054_EXTENDED_MID 2
#define SI3054_LINE_RATE 3
#define SI3054_LINE_LEVEL 4
#define SI3054_GPIO_CFG 5
#define SI3054_GPIO_POLARITY 6
#define SI3054_GPIO_STICKY 7
#define SI3054_GPIO_WAKEUP 8
#define SI3054_GPIO_STATUS 9
#define SI3054_GPIO_CONTROL 10
#define SI3054_MISC_AFE 11
#define SI3054_CHIPID 12
#define SI3054_LINE_CFG1 13
#define SI3054_LINE_STATUS 14
#define SI3054_DC_TERMINATION 15
#define SI3054_LINE_CONFIG 16
#define SI3054_CALLPROG_ATT 17
#define SI3054_SQ_CONTROL 18
#define SI3054_MISC_CONTROL 19
#define SI3054_RING_CTRL1 20
#define SI3054_RING_CTRL2 21
/* extended MID */
#define SI3054_MEI_READY 0xf
/* line level */
#define SI3054_ATAG_MASK 0x00f0
#define SI3054_DTAG_MASK 0xf000
/* GPIO bits */
#define SI3054_GPIO_OH 0x0001
#define SI3054_GPIO_CID 0x0002
/* chipid and revisions */
#define SI3054_CHIPID_CODEC_REV_MASK 0x000f
#define SI3054_CHIPID_DAA_REV_MASK 0x00f0
#define SI3054_CHIPID_INTERNATIONAL 0x0100
#define SI3054_CHIPID_DAA_ID 0x0f00
#define SI3054_CHIPID_CODEC_ID (1<<12)
/* si3054 codec registers (nodes) access macros */
#define GET_REG(codec,reg) (snd_hda_codec_read(codec,reg,0,SI3054_VERB_READ_NODE,0))
#define SET_REG(codec,reg,val) (snd_hda_codec_write(codec,reg,0,SI3054_VERB_WRITE_NODE,val))
struct si3054_spec {
unsigned international;
struct hda_pcm pcm;
};
/*
* Modem mixer
*/
#define PRIVATE_VALUE(reg,mask) ((reg<<16)|(mask&0xffff))
#define PRIVATE_REG(val) ((val>>16)&0xffff)
#define PRIVATE_MASK(val) (val&0xffff)
static int si3054_switch_info(snd_kcontrol_t *kcontrol,
snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int si3054_switch_get(snd_kcontrol_t *kcontrol,
snd_ctl_elem_value_t *uvalue)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
u16 reg = PRIVATE_REG(kcontrol->private_value);
u16 mask = PRIVATE_MASK(kcontrol->private_value);
uvalue->value.integer.value[0] = (GET_REG(codec, reg)) & mask ? 1 : 0 ;
return 0;
}
static int si3054_switch_put(snd_kcontrol_t *kcontrol,
snd_ctl_elem_value_t *uvalue)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
u16 reg = PRIVATE_REG(kcontrol->private_value);
u16 mask = PRIVATE_MASK(kcontrol->private_value);
if (uvalue->value.integer.value[0])
SET_REG(codec, reg, (GET_REG(codec, reg)) | mask);
else
SET_REG(codec, reg, (GET_REG(codec, reg)) & ~mask);
return 0;
}
#define SI3054_KCONTROL(kname,reg,mask) { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = kname, \
.info = si3054_switch_info, \
.get = si3054_switch_get, \
.put = si3054_switch_put, \
.private_value = PRIVATE_VALUE(reg,mask), \
}
static snd_kcontrol_new_t si3054_modem_mixer[] = {
SI3054_KCONTROL("Off-hook Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_OH),
SI3054_KCONTROL("Caller ID Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_CID),
{}
};
static int si3054_build_controls(struct hda_codec *codec)
{
return snd_hda_add_new_ctls(codec, si3054_modem_mixer);
}
/*
* PCM callbacks
*/
static int si3054_pcm_prepare(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
unsigned int stream_tag,
unsigned int format,
snd_pcm_substream_t *substream)
{
u16 val;
SET_REG(codec, SI3054_LINE_RATE, substream->runtime->rate);
val = GET_REG(codec, SI3054_LINE_LEVEL);
val &= 0xff << (8 * (substream->stream != SNDRV_PCM_STREAM_PLAYBACK));
val |= ((stream_tag & 0xf) << 4) << (8 * (substream->stream == SNDRV_PCM_STREAM_PLAYBACK));
SET_REG(codec, SI3054_LINE_LEVEL, val);
snd_hda_codec_setup_stream(codec, hinfo->nid,
stream_tag, 0, format);
return 0;
}
static int si3054_pcm_open(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
snd_pcm_substream_t *substream)
{
static unsigned int rates[] = { 8000, 9600, 16000 };
static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
substream->runtime->hw.period_bytes_min = 80;
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
}
static struct hda_pcm_stream si3054_pcm = {
.substreams = 1,
.channels_min = 1,
.channels_max = 1,
.nid = 0x1,
.rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_KNOT,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.maxbps = 16,
.ops = {
.open = si3054_pcm_open,
.prepare = si3054_pcm_prepare,
},
};
static int si3054_build_pcms(struct hda_codec *codec)
{
struct si3054_spec *spec = codec->spec;
struct hda_pcm *info = &spec->pcm;
si3054_pcm.nid = codec->mfg;
codec->num_pcms = 1;
codec->pcm_info = info;
info->name = "Si3054 Modem";
info->stream[SNDRV_PCM_STREAM_PLAYBACK] = si3054_pcm;
info->stream[SNDRV_PCM_STREAM_CAPTURE] = si3054_pcm;
info->is_modem = 1;
return 0;
}
/*
* Init part
*/
static int si3054_init(struct hda_codec *codec)
{
struct si3054_spec *spec = codec->spec;
unsigned wait_count;
u16 val;
snd_hda_codec_write(codec, AC_NODE_ROOT, 0, AC_VERB_SET_CODEC_RESET, 0);
snd_hda_codec_write(codec, codec->mfg, 0, AC_VERB_SET_STREAM_FORMAT, 0);
SET_REG(codec, SI3054_LINE_RATE, 9600);
SET_REG(codec, SI3054_LINE_LEVEL, SI3054_DTAG_MASK|SI3054_ATAG_MASK);
SET_REG(codec, SI3054_EXTENDED_MID, 0);
wait_count = 10;
do {
msleep(2);
val = GET_REG(codec, SI3054_EXTENDED_MID);
} while ((val & SI3054_MEI_READY) != SI3054_MEI_READY && wait_count--);
if((val&SI3054_MEI_READY) != SI3054_MEI_READY) {
snd_printk(KERN_ERR "si3054: cannot initialize. EXT MID = %04x\n", val);
return -EACCES;
}
SET_REG(codec, SI3054_GPIO_POLARITY, 0xffff);
SET_REG(codec, SI3054_GPIO_CFG, 0x0);
SET_REG(codec, SI3054_MISC_AFE, 0);
SET_REG(codec, SI3054_LINE_CFG1,0x200);
if((GET_REG(codec,SI3054_LINE_STATUS) & (1<<6)) == 0) {
snd_printd("Link Frame Detect(FDT) is not ready (line status: %04x)\n",
GET_REG(codec,SI3054_LINE_STATUS));
}
spec->international = GET_REG(codec, SI3054_CHIPID) & SI3054_CHIPID_INTERNATIONAL;
return 0;
}
static void si3054_free(struct hda_codec *codec)
{
kfree(codec->spec);
}
/*
*/
static struct hda_codec_ops si3054_patch_ops = {
.build_controls = si3054_build_controls,
.build_pcms = si3054_build_pcms,
.init = si3054_init,
.free = si3054_free,
#ifdef CONFIG_PM
//.suspend = si3054_suspend,
.resume = si3054_init,
#endif
};
static int patch_si3054(struct hda_codec *codec)
{
struct si3054_spec *spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (spec == NULL)
return -ENOMEM;
codec->spec = spec;
codec->patch_ops = si3054_patch_ops;
return 0;
}
/*
* patch entries
*/
struct hda_codec_preset snd_hda_preset_si3054[] = {
{ .id = 0x163c3155, .name = "Si3054", .patch = patch_si3054 },
{}
};
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