forked from Minki/linux
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
907 lines
23 KiB
C
907 lines
23 KiB
C
/*
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* Universal Interface for Intel High Definition Audio Codec
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*
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* Generic widget tree parser
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*
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* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <sound/core.h>
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#include "hda_codec.h"
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#include "hda_local.h"
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/* widget node for parsing */
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struct hda_gnode {
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hda_nid_t nid; /* NID of this widget */
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unsigned short nconns; /* number of input connections */
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hda_nid_t conn_list[HDA_MAX_CONNECTIONS]; /* input connections */
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unsigned int wid_caps; /* widget capabilities */
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unsigned char type; /* widget type */
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unsigned char pin_ctl; /* pin controls */
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unsigned char checked; /* the flag indicates that the node is already parsed */
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unsigned int pin_caps; /* pin widget capabilities */
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unsigned int def_cfg; /* default configuration */
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unsigned int amp_out_caps; /* AMP out capabilities */
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unsigned int amp_in_caps; /* AMP in capabilities */
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struct list_head list;
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};
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/* pathc-specific record */
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struct hda_gspec {
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struct hda_gnode *dac_node; /* DAC node */
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struct hda_gnode *out_pin_node; /* Output pin (Line-Out) node */
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struct hda_gnode *pcm_vol_node; /* Node for PCM volume */
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unsigned int pcm_vol_index; /* connection of PCM volume */
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struct hda_gnode *adc_node; /* ADC node */
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struct hda_gnode *cap_vol_node; /* Node for capture volume */
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unsigned int cur_cap_src; /* current capture source */
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struct hda_input_mux input_mux;
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char cap_labels[HDA_MAX_NUM_INPUTS][16];
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unsigned int def_amp_in_caps;
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unsigned int def_amp_out_caps;
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struct hda_pcm pcm_rec; /* PCM information */
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struct list_head nid_list; /* list of widgets */
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};
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/*
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* retrieve the default device type from the default config value
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*/
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#define get_defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
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#define get_defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
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/*
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* destructor
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*/
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static void snd_hda_generic_free(struct hda_codec *codec)
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{
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struct hda_gspec *spec = codec->spec;
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struct list_head *p, *n;
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if (! spec)
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return;
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/* free all widgets */
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list_for_each_safe(p, n, &spec->nid_list) {
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struct hda_gnode *node = list_entry(p, struct hda_gnode, list);
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kfree(node);
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}
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kfree(spec);
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}
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/*
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* add a new widget node and read its attributes
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*/
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static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid)
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{
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struct hda_gnode *node;
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int nconns;
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node = kcalloc(1, sizeof(*node), GFP_KERNEL);
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if (node == NULL)
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return -ENOMEM;
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node->nid = nid;
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nconns = snd_hda_get_connections(codec, nid, node->conn_list, HDA_MAX_CONNECTIONS);
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if (nconns < 0) {
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kfree(node);
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return nconns;
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}
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node->nconns = nconns;
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node->wid_caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
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node->type = (node->wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
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if (node->type == AC_WID_PIN) {
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node->pin_caps = snd_hda_param_read(codec, node->nid, AC_PAR_PIN_CAP);
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node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
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node->def_cfg = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
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}
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if (node->wid_caps & AC_WCAP_OUT_AMP) {
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if (node->wid_caps & AC_WCAP_AMP_OVRD)
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node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP);
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if (! node->amp_out_caps)
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node->amp_out_caps = spec->def_amp_out_caps;
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}
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if (node->wid_caps & AC_WCAP_IN_AMP) {
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if (node->wid_caps & AC_WCAP_AMP_OVRD)
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node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP);
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if (! node->amp_in_caps)
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node->amp_in_caps = spec->def_amp_in_caps;
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}
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list_add_tail(&node->list, &spec->nid_list);
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return 0;
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}
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/*
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* build the AFG subtree
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*/
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static int build_afg_tree(struct hda_codec *codec)
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{
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struct hda_gspec *spec = codec->spec;
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int i, nodes, err;
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hda_nid_t nid;
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snd_assert(spec, return -EINVAL);
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spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
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spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
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nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
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if (! nid || nodes < 0) {
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printk(KERN_ERR "Invalid AFG subtree\n");
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return -EINVAL;
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}
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/* parse all nodes belonging to the AFG */
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for (i = 0; i < nodes; i++, nid++) {
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if ((err = add_new_node(codec, spec, nid)) < 0)
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return err;
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}
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return 0;
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}
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/*
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* look for the node record for the given NID
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*/
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/* FIXME: should avoid the braindead linear search */
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static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid)
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{
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struct list_head *p;
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struct hda_gnode *node;
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list_for_each(p, &spec->nid_list) {
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node = list_entry(p, struct hda_gnode, list);
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if (node->nid == nid)
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return node;
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}
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return NULL;
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}
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/*
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* unmute (and set max vol) the output amplifier
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*/
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static int unmute_output(struct hda_codec *codec, struct hda_gnode *node)
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{
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unsigned int val, ofs;
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snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid);
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val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
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ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
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if (val >= ofs)
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val -= ofs;
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val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT;
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val |= AC_AMP_SET_OUTPUT;
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return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val);
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}
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/*
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* unmute (and set max vol) the input amplifier
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*/
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static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index)
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{
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unsigned int val, ofs;
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snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index);
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val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
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ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
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if (val >= ofs)
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val -= ofs;
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val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT;
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val |= AC_AMP_SET_INPUT;
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// awk added - fixed to allow unmuting of indexed amps
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val |= index << AC_AMP_SET_INDEX_SHIFT;
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return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val);
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}
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/*
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* select the input connection of the given node.
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*/
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static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node,
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unsigned int index)
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{
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snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index);
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return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_CONNECT_SEL, index);
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}
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/*
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* clear checked flag of each node in the node list
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*/
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static void clear_check_flags(struct hda_gspec *spec)
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{
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struct list_head *p;
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struct hda_gnode *node;
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list_for_each(p, &spec->nid_list) {
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node = list_entry(p, struct hda_gnode, list);
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node->checked = 0;
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}
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}
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/*
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* parse the output path recursively until reach to an audio output widget
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*
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* returns 0 if not found, 1 if found, or a negative error code.
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*/
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static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec,
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struct hda_gnode *node)
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{
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int i, err;
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struct hda_gnode *child;
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if (node->checked)
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return 0;
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node->checked = 1;
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if (node->type == AC_WID_AUD_OUT) {
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if (node->wid_caps & AC_WCAP_DIGITAL) {
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snd_printdd("Skip Digital OUT node %x\n", node->nid);
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return 0;
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}
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snd_printdd("AUD_OUT found %x\n", node->nid);
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if (spec->dac_node) {
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/* already DAC node is assigned, just unmute & connect */
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return node == spec->dac_node;
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}
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spec->dac_node = node;
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if (node->wid_caps & AC_WCAP_OUT_AMP) {
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spec->pcm_vol_node = node;
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spec->pcm_vol_index = 0;
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}
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return 1; /* found */
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}
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for (i = 0; i < node->nconns; i++) {
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child = hda_get_node(spec, node->conn_list[i]);
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if (! child)
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continue;
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err = parse_output_path(codec, spec, child);
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if (err < 0)
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return err;
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else if (err > 0) {
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/* found one,
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* select the path, unmute both input and output
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*/
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if (node->nconns > 1)
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select_input_connection(codec, node, i);
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unmute_input(codec, node, i);
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unmute_output(codec, node);
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if (! spec->pcm_vol_node) {
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if (node->wid_caps & AC_WCAP_IN_AMP) {
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spec->pcm_vol_node = node;
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spec->pcm_vol_index = i;
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} else if (node->wid_caps & AC_WCAP_OUT_AMP) {
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spec->pcm_vol_node = node;
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spec->pcm_vol_index = 0;
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}
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}
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return 1;
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}
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}
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return 0;
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}
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/*
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* Look for the output PIN widget with the given jack type
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* and parse the output path to that PIN.
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*
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* Returns the PIN node when the path to DAC is established.
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*/
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static struct hda_gnode *parse_output_jack(struct hda_codec *codec,
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struct hda_gspec *spec,
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int jack_type)
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{
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struct list_head *p;
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struct hda_gnode *node;
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int err;
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list_for_each(p, &spec->nid_list) {
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node = list_entry(p, struct hda_gnode, list);
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if (node->type != AC_WID_PIN)
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continue;
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/* output capable? */
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if (! (node->pin_caps & AC_PINCAP_OUT))
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continue;
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if (jack_type >= 0) {
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if (jack_type != get_defcfg_type(node))
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continue;
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if (node->wid_caps & AC_WCAP_DIGITAL)
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continue; /* skip SPDIF */
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} else {
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/* output as default? */
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if (! (node->pin_ctl & AC_PINCTL_OUT_EN))
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continue;
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}
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clear_check_flags(spec);
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err = parse_output_path(codec, spec, node);
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if (err < 0)
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return NULL;
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else if (err > 0) {
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/* unmute the PIN output */
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unmute_output(codec, node);
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/* set PIN-Out enable */
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snd_hda_codec_write(codec, node->nid, 0,
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AC_VERB_SET_PIN_WIDGET_CONTROL,
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AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
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return node;
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}
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}
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return NULL;
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}
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/*
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* parse outputs
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*/
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static int parse_output(struct hda_codec *codec)
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{
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struct hda_gspec *spec = codec->spec;
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struct hda_gnode *node;
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/*
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* Look for the output PIN widget
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*/
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/* first, look for the line-out pin */
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node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT);
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if (node) /* found, remember the PIN node */
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spec->out_pin_node = node;
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/* look for the HP-out pin */
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node = parse_output_jack(codec, spec, AC_JACK_HP_OUT);
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if (node) {
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if (! spec->out_pin_node)
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spec->out_pin_node = node;
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}
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if (! spec->out_pin_node) {
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/* no line-out or HP pins found,
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* then choose for the first output pin
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*/
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spec->out_pin_node = parse_output_jack(codec, spec, -1);
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if (! spec->out_pin_node)
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snd_printd("hda_generic: no proper output path found\n");
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}
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return 0;
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}
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/*
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* input MUX
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*/
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/* control callbacks */
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static int capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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struct hda_gspec *spec = codec->spec;
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return snd_hda_input_mux_info(&spec->input_mux, uinfo);
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}
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static int capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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struct hda_gspec *spec = codec->spec;
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ucontrol->value.enumerated.item[0] = spec->cur_cap_src;
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return 0;
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}
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static int capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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struct hda_gspec *spec = codec->spec;
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return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol,
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spec->adc_node->nid, &spec->cur_cap_src);
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}
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/*
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* return the string name of the given input PIN widget
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*/
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static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl)
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{
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unsigned int location = get_defcfg_location(node);
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switch (get_defcfg_type(node)) {
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case AC_JACK_LINE_IN:
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if ((location & 0x0f) == AC_JACK_LOC_FRONT)
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return "Front Line";
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return "Line";
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case AC_JACK_CD:
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if (pinctl)
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*pinctl |= AC_PIN_VREF_GRD;
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return "CD";
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case AC_JACK_AUX:
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if ((location & 0x0f) == AC_JACK_LOC_FRONT)
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return "Front Aux";
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return "Aux";
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case AC_JACK_MIC_IN:
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if ((location & 0x0f) == AC_JACK_LOC_FRONT)
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return "Front Mic";
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return "Mic";
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case AC_JACK_SPDIF_IN:
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return "SPDIF";
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case AC_JACK_DIG_OTHER_IN:
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return "Digital";
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}
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return NULL;
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}
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/*
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* parse the nodes recursively until reach to the input PIN
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*
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* returns 0 if not found, 1 if found, or a negative error code.
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*/
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static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec,
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struct hda_gnode *node)
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{
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int i, err;
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unsigned int pinctl;
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char *label;
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const char *type;
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if (node->checked)
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return 0;
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node->checked = 1;
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if (node->type != AC_WID_PIN) {
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for (i = 0; i < node->nconns; i++) {
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struct hda_gnode *child;
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child = hda_get_node(spec, node->conn_list[i]);
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if (! child)
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continue;
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err = parse_adc_sub_nodes(codec, spec, child);
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if (err < 0)
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return err;
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if (err > 0) {
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/* found one,
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* select the path, unmute both input and output
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*/
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if (node->nconns > 1)
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select_input_connection(codec, node, i);
|
|
unmute_input(codec, node, i);
|
|
unmute_output(codec, node);
|
|
return err;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* input capable? */
|
|
if (! (node->pin_caps & AC_PINCAP_IN))
|
|
return 0;
|
|
|
|
if (node->wid_caps & AC_WCAP_DIGITAL)
|
|
return 0; /* skip SPDIF */
|
|
|
|
if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
|
|
snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
pinctl = AC_PINCTL_IN_EN;
|
|
/* create a proper capture source label */
|
|
type = get_input_type(node, &pinctl);
|
|
if (! type) {
|
|
/* input as default? */
|
|
if (! (node->pin_ctl & AC_PINCTL_IN_EN))
|
|
return 0;
|
|
type = "Input";
|
|
}
|
|
label = spec->cap_labels[spec->input_mux.num_items];
|
|
strcpy(label, type);
|
|
spec->input_mux.items[spec->input_mux.num_items].label = label;
|
|
|
|
/* unmute the PIN external input */
|
|
unmute_input(codec, node, 0); /* index = 0? */
|
|
/* set PIN-In enable */
|
|
snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
|
|
|
|
return 1; /* found */
|
|
}
|
|
|
|
/*
|
|
* parse input
|
|
*/
|
|
static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
struct hda_gnode *node;
|
|
int i, err;
|
|
|
|
snd_printdd("AUD_IN = %x\n", adc_node->nid);
|
|
clear_check_flags(spec);
|
|
|
|
// awk added - fixed no recording due to muted widget
|
|
unmute_input(codec, adc_node, 0);
|
|
|
|
/*
|
|
* check each connection of the ADC
|
|
* if it reaches to a proper input PIN, add the path as the
|
|
* input path.
|
|
*/
|
|
for (i = 0; i < adc_node->nconns; i++) {
|
|
node = hda_get_node(spec, adc_node->conn_list[i]);
|
|
if (! node)
|
|
continue;
|
|
err = parse_adc_sub_nodes(codec, spec, node);
|
|
if (err < 0)
|
|
return err;
|
|
else if (err > 0) {
|
|
struct hda_input_mux_item *csrc = &spec->input_mux.items[spec->input_mux.num_items];
|
|
char *buf = spec->cap_labels[spec->input_mux.num_items];
|
|
int ocap;
|
|
for (ocap = 0; ocap < spec->input_mux.num_items; ocap++) {
|
|
if (! strcmp(buf, spec->cap_labels[ocap])) {
|
|
/* same label already exists,
|
|
* put the index number to be unique
|
|
*/
|
|
sprintf(buf, "%s %d", spec->cap_labels[ocap],
|
|
spec->input_mux.num_items);
|
|
}
|
|
}
|
|
csrc->index = i;
|
|
spec->input_mux.num_items++;
|
|
}
|
|
}
|
|
|
|
if (! spec->input_mux.num_items)
|
|
return 0; /* no input path found... */
|
|
|
|
snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
|
|
for (i = 0; i < spec->input_mux.num_items; i++)
|
|
snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
|
|
spec->input_mux.items[i].index);
|
|
|
|
spec->adc_node = adc_node;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* parse input
|
|
*/
|
|
static int parse_input(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
struct list_head *p;
|
|
struct hda_gnode *node;
|
|
int err;
|
|
|
|
/*
|
|
* At first we look for an audio input widget.
|
|
* If it reaches to certain input PINs, we take it as the
|
|
* input path.
|
|
*/
|
|
list_for_each(p, &spec->nid_list) {
|
|
node = list_entry(p, struct hda_gnode, list);
|
|
if (node->wid_caps & AC_WCAP_DIGITAL)
|
|
continue; /* skip SPDIF */
|
|
if (node->type == AC_WID_AUD_IN) {
|
|
err = parse_input_path(codec, node);
|
|
if (err < 0)
|
|
return err;
|
|
else if (err > 0)
|
|
return 0;
|
|
}
|
|
}
|
|
snd_printd("hda_generic: no proper input path found\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* create mixer controls if possible
|
|
*/
|
|
#define DIR_OUT 0x1
|
|
#define DIR_IN 0x2
|
|
|
|
static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
|
|
unsigned int index, const char *type, const char *dir_sfx)
|
|
{
|
|
char name[32];
|
|
int err;
|
|
int created = 0;
|
|
snd_kcontrol_new_t knew;
|
|
|
|
if (type)
|
|
sprintf(name, "%s %s Switch", type, dir_sfx);
|
|
else
|
|
sprintf(name, "%s Switch", dir_sfx);
|
|
if ((node->wid_caps & AC_WCAP_IN_AMP) &&
|
|
(node->amp_in_caps & AC_AMPCAP_MUTE)) {
|
|
knew = (snd_kcontrol_new_t)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
|
|
snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
|
|
if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
|
|
return err;
|
|
created = 1;
|
|
} else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
|
|
(node->amp_out_caps & AC_AMPCAP_MUTE)) {
|
|
knew = (snd_kcontrol_new_t)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
|
|
snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
|
|
if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
|
|
return err;
|
|
created = 1;
|
|
}
|
|
|
|
if (type)
|
|
sprintf(name, "%s %s Volume", type, dir_sfx);
|
|
else
|
|
sprintf(name, "%s Volume", dir_sfx);
|
|
if ((node->wid_caps & AC_WCAP_IN_AMP) &&
|
|
(node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
|
|
knew = (snd_kcontrol_new_t)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
|
|
snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
|
|
if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
|
|
return err;
|
|
created = 1;
|
|
} else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
|
|
(node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
|
|
knew = (snd_kcontrol_new_t)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
|
|
snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
|
|
if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&knew, codec))) < 0)
|
|
return err;
|
|
created = 1;
|
|
}
|
|
|
|
return created;
|
|
}
|
|
|
|
/*
|
|
* check whether the controls with the given name and direction suffix already exist
|
|
*/
|
|
static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
|
|
{
|
|
snd_ctl_elem_id_t id;
|
|
memset(&id, 0, sizeof(id));
|
|
sprintf(id.name, "%s %s Volume", type, dir);
|
|
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
|
|
if (snd_ctl_find_id(codec->bus->card, &id))
|
|
return 1;
|
|
sprintf(id.name, "%s %s Switch", type, dir);
|
|
id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
|
|
if (snd_ctl_find_id(codec->bus->card, &id))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* build output mixer controls
|
|
*/
|
|
static int build_output_controls(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
int err;
|
|
|
|
err = create_mixer(codec, spec->pcm_vol_node, spec->pcm_vol_index,
|
|
"PCM", "Playback");
|
|
if (err < 0)
|
|
return err;
|
|
return 0;
|
|
}
|
|
|
|
/* create capture volume/switch */
|
|
static int build_input_controls(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
struct hda_gnode *adc_node = spec->adc_node;
|
|
int err;
|
|
|
|
if (! adc_node)
|
|
return 0; /* not found */
|
|
|
|
/* create capture volume and switch controls if the ADC has an amp */
|
|
err = create_mixer(codec, adc_node, 0, NULL, "Capture");
|
|
|
|
/* create input MUX if multiple sources are available */
|
|
if (spec->input_mux.num_items > 1) {
|
|
static snd_kcontrol_new_t cap_sel = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Capture Source",
|
|
.info = capture_source_info,
|
|
.get = capture_source_get,
|
|
.put = capture_source_put,
|
|
};
|
|
if ((err = snd_ctl_add(codec->bus->card, snd_ctl_new1(&cap_sel, codec))) < 0)
|
|
return err;
|
|
spec->cur_cap_src = 0;
|
|
select_input_connection(codec, adc_node, spec->input_mux.items[0].index);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* parse the nodes recursively until reach to the output PIN.
|
|
*
|
|
* returns 0 - if not found,
|
|
* 1 - if found, but no mixer is created
|
|
* 2 - if found and mixer was already created, (just skip)
|
|
* a negative error code
|
|
*/
|
|
static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
|
|
struct hda_gnode *node, struct hda_gnode *dest_node,
|
|
const char *type)
|
|
{
|
|
int i, err;
|
|
|
|
if (node->checked)
|
|
return 0;
|
|
|
|
node->checked = 1;
|
|
if (node == dest_node) {
|
|
/* loopback connection found */
|
|
return 1;
|
|
}
|
|
|
|
for (i = 0; i < node->nconns; i++) {
|
|
struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
|
|
if (! child)
|
|
continue;
|
|
err = parse_loopback_path(codec, spec, child, dest_node, type);
|
|
if (err < 0)
|
|
return err;
|
|
else if (err >= 1) {
|
|
if (err == 1) {
|
|
err = create_mixer(codec, node, i, type, "Playback");
|
|
if (err < 0)
|
|
return err;
|
|
if (err > 0)
|
|
return 2; /* ok, created */
|
|
/* not created, maybe in the lower path */
|
|
err = 1;
|
|
}
|
|
/* connect and unmute */
|
|
if (node->nconns > 1)
|
|
select_input_connection(codec, node, i);
|
|
unmute_input(codec, node, i);
|
|
unmute_output(codec, node);
|
|
return err;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* parse the tree and build the loopback controls
|
|
*/
|
|
static int build_loopback_controls(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
struct list_head *p;
|
|
struct hda_gnode *node;
|
|
int err;
|
|
const char *type;
|
|
|
|
if (! spec->out_pin_node)
|
|
return 0;
|
|
|
|
list_for_each(p, &spec->nid_list) {
|
|
node = list_entry(p, struct hda_gnode, list);
|
|
if (node->type != AC_WID_PIN)
|
|
continue;
|
|
/* input capable? */
|
|
if (! (node->pin_caps & AC_PINCAP_IN))
|
|
return 0;
|
|
type = get_input_type(node, NULL);
|
|
if (type) {
|
|
if (check_existing_control(codec, type, "Playback"))
|
|
continue;
|
|
clear_check_flags(spec);
|
|
err = parse_loopback_path(codec, spec, spec->out_pin_node,
|
|
node, type);
|
|
if (err < 0)
|
|
return err;
|
|
if (! err)
|
|
continue;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* build mixer controls
|
|
*/
|
|
static int build_generic_controls(struct hda_codec *codec)
|
|
{
|
|
int err;
|
|
|
|
if ((err = build_input_controls(codec)) < 0 ||
|
|
(err = build_output_controls(codec)) < 0 ||
|
|
(err = build_loopback_controls(codec)) < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* PCM
|
|
*/
|
|
static struct hda_pcm_stream generic_pcm_playback = {
|
|
.substreams = 1,
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
};
|
|
|
|
static int build_generic_pcms(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec = codec->spec;
|
|
struct hda_pcm *info = &spec->pcm_rec;
|
|
|
|
if (! spec->dac_node && ! spec->adc_node) {
|
|
snd_printd("hda_generic: no PCM found\n");
|
|
return 0;
|
|
}
|
|
|
|
codec->num_pcms = 1;
|
|
codec->pcm_info = info;
|
|
|
|
info->name = "HDA Generic";
|
|
if (spec->dac_node) {
|
|
info->stream[0] = generic_pcm_playback;
|
|
info->stream[0].nid = spec->dac_node->nid;
|
|
}
|
|
if (spec->adc_node) {
|
|
info->stream[1] = generic_pcm_playback;
|
|
info->stream[1].nid = spec->adc_node->nid;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
*/
|
|
static struct hda_codec_ops generic_patch_ops = {
|
|
.build_controls = build_generic_controls,
|
|
.build_pcms = build_generic_pcms,
|
|
.free = snd_hda_generic_free,
|
|
};
|
|
|
|
/*
|
|
* the generic parser
|
|
*/
|
|
int snd_hda_parse_generic_codec(struct hda_codec *codec)
|
|
{
|
|
struct hda_gspec *spec;
|
|
int err;
|
|
|
|
spec = kcalloc(1, sizeof(*spec), GFP_KERNEL);
|
|
if (spec == NULL) {
|
|
printk(KERN_ERR "hda_generic: can't allocate spec\n");
|
|
return -ENOMEM;
|
|
}
|
|
codec->spec = spec;
|
|
INIT_LIST_HEAD(&spec->nid_list);
|
|
|
|
if ((err = build_afg_tree(codec)) < 0)
|
|
goto error;
|
|
|
|
if ((err = parse_input(codec)) < 0 ||
|
|
(err = parse_output(codec)) < 0)
|
|
goto error;
|
|
|
|
codec->patch_ops = generic_patch_ops;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
snd_hda_generic_free(codec);
|
|
return err;
|
|
}
|