| /* |
| * Universal Interface for Intel High Definition Audio Codec |
| * |
| * Generic widget tree parser |
| * |
| * 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/slab.h> |
| #include <linux/pci.h> |
| #include <sound/core.h> |
| #include "hda_codec.h" |
| #include "hda_local.h" |
| |
| /* widget node for parsing */ |
| struct hda_gnode { |
| hda_nid_t nid; /* NID of this widget */ |
| unsigned short nconns; /* number of input connections */ |
| hda_nid_t conn_list[HDA_MAX_CONNECTIONS]; /* input connections */ |
| unsigned int wid_caps; /* widget capabilities */ |
| unsigned char type; /* widget type */ |
| unsigned char pin_ctl; /* pin controls */ |
| unsigned char checked; /* the flag indicates that the node is already parsed */ |
| unsigned int pin_caps; /* pin widget capabilities */ |
| unsigned int def_cfg; /* default configuration */ |
| unsigned int amp_out_caps; /* AMP out capabilities */ |
| unsigned int amp_in_caps; /* AMP in capabilities */ |
| struct list_head list; |
| }; |
| |
| /* pathc-specific record */ |
| struct hda_gspec { |
| struct hda_gnode *dac_node; /* DAC node */ |
| struct hda_gnode *out_pin_node; /* Output pin (Line-Out) node */ |
| struct hda_gnode *pcm_vol_node; /* Node for PCM volume */ |
| unsigned int pcm_vol_index; /* connection of PCM volume */ |
| |
| struct hda_gnode *adc_node; /* ADC node */ |
| struct hda_gnode *cap_vol_node; /* Node for capture volume */ |
| unsigned int cur_cap_src; /* current capture source */ |
| struct hda_input_mux input_mux; |
| char cap_labels[HDA_MAX_NUM_INPUTS][16]; |
| |
| unsigned int def_amp_in_caps; |
| unsigned int def_amp_out_caps; |
| |
| struct hda_pcm pcm_rec; /* PCM information */ |
| |
| struct list_head nid_list; /* list of widgets */ |
| }; |
| |
| /* |
| * retrieve the default device type from the default config value |
| */ |
| #define get_defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT) |
| #define get_defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT) |
| |
| /* |
| * destructor |
| */ |
| static void snd_hda_generic_free(struct hda_codec *codec) |
| { |
| struct hda_gspec *spec = codec->spec; |
| struct list_head *p, *n; |
| |
| if (! spec) |
| return; |
| /* free all widgets */ |
| list_for_each_safe(p, n, &spec->nid_list) { |
| struct hda_gnode *node = list_entry(p, struct hda_gnode, list); |
| kfree(node); |
| } |
| kfree(spec); |
| } |
| |
| |
| /* |
| * add a new widget node and read its attributes |
| */ |
| static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid) |
| { |
| struct hda_gnode *node; |
| int nconns; |
| |
| node = kcalloc(1, sizeof(*node), GFP_KERNEL); |
| if (node == NULL) |
| return -ENOMEM; |
| node->nid = nid; |
| nconns = snd_hda_get_connections(codec, nid, node->conn_list, HDA_MAX_CONNECTIONS); |
| if (nconns < 0) { |
| kfree(node); |
| return nconns; |
| } |
| node->nconns = nconns; |
| node->wid_caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP); |
| node->type = (node->wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT; |
| |
| if (node->type == AC_WID_PIN) { |
| node->pin_caps = snd_hda_param_read(codec, node->nid, AC_PAR_PIN_CAP); |
| node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0); |
| node->def_cfg = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0); |
| } |
| |
| if (node->wid_caps & AC_WCAP_OUT_AMP) { |
| if (node->wid_caps & AC_WCAP_AMP_OVRD) |
| node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP); |
| if (! node->amp_out_caps) |
| node->amp_out_caps = spec->def_amp_out_caps; |
| } |
| if (node->wid_caps & AC_WCAP_IN_AMP) { |
| if (node->wid_caps & AC_WCAP_AMP_OVRD) |
| node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP); |
| if (! node->amp_in_caps) |
| node->amp_in_caps = spec->def_amp_in_caps; |
| } |
| list_add_tail(&node->list, &spec->nid_list); |
| return 0; |
| } |
| |
| /* |
| * build the AFG subtree |
| */ |
| static int build_afg_tree(struct hda_codec *codec) |
| { |
| struct hda_gspec *spec = codec->spec; |
| int i, nodes, err; |
| hda_nid_t nid; |
| |
| snd_assert(spec, return -EINVAL); |
| |
| spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP); |
| spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP); |
| |
| nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid); |
| if (! nid || nodes < 0) { |
| printk(KERN_ERR "Invalid AFG subtree\n"); |
| return -EINVAL; |
| } |
| |
| /* parse all nodes belonging to the AFG */ |
| for (i = 0; i < nodes; i++, nid++) { |
| if ((err = add_new_node(codec, spec, nid)) < 0) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| |
| /* |
| * look for the node record for the given NID |
| */ |
| /* FIXME: should avoid the braindead linear search */ |
| static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid) |
| { |
| struct list_head *p; |
| struct hda_gnode *node; |
| |
| list_for_each(p, &spec->nid_list) { |
| node = list_entry(p, struct hda_gnode, list); |
| if (node->nid == nid) |
| return node; |
| } |
| return NULL; |
| } |
| |
| /* |
| * unmute (and set max vol) the output amplifier |
| */ |
| static int unmute_output(struct hda_codec *codec, struct hda_gnode *node) |
| { |
| unsigned int val, ofs; |
| snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid); |
| val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; |
| ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT; |
| if (val >= ofs) |
| val -= ofs; |
| val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT; |
| val |= AC_AMP_SET_OUTPUT; |
| return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val); |
| } |
| |
| /* |
| * unmute (and set max vol) the input amplifier |
| */ |
| static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index) |
| { |
| unsigned int val, ofs; |
| snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index); |
| val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; |
| ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT; |
| if (val >= ofs) |
| val -= ofs; |
| val |= AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT; |
| val |= AC_AMP_SET_INPUT; |
| // awk added - fixed to allow unmuting of indexed amps |
| val |= index << AC_AMP_SET_INDEX_SHIFT; |
| return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, val); |
| } |
| |
| /* |
| * select the input connection of the given node. |
| */ |
| static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node, |
| unsigned int index) |
| { |
| snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index); |
| return snd_hda_codec_write(codec, node->nid, 0, AC_VERB_SET_CONNECT_SEL, index); |
| } |
| |
| /* |
| * clear checked flag of each node in the node list |
| */ |
| static void clear_check_flags(struct hda_gspec *spec) |
| { |
| struct list_head *p; |
| struct hda_gnode *node; |
| |
| list_for_each(p, &spec->nid_list) { |
| node = list_entry(p, struct hda_gnode, list); |
| node->checked = 0; |
| } |
| } |
| |
| /* |
| * parse the output path recursively until reach to an audio output widget |
| * |
| * returns 0 if not found, 1 if found, or a negative error code. |
| */ |
| static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec, |
| struct hda_gnode *node) |
| { |
| int i, err; |
| struct hda_gnode *child; |
| |
| if (node->checked) |
| return 0; |
| |
| node->checked = 1; |
| if (node->type == AC_WID_AUD_OUT) { |
| if (node->wid_caps & AC_WCAP_DIGITAL) { |
| snd_printdd("Skip Digital OUT node %x\n", node->nid); |
| return 0; |
| } |
| snd_printdd("AUD_OUT found %x\n", node->nid); |
| if (spec->dac_node) { |
| /* already DAC node is assigned, just unmute & connect */ |
| return node == spec->dac_node; |
| } |
| spec->dac_node = node; |
| if (node->wid_caps & AC_WCAP_OUT_AMP) { |
| spec->pcm_vol_node = node; |
| spec->pcm_vol_index = 0; |
| } |
| return 1; /* found */ |
| } |
| |
| for (i = 0; i < node->nconns; i++) { |
| child = hda_get_node(spec, node->conn_list[i]); |
| if (! child) |
| continue; |
| err = parse_output_path(codec, spec, child); |
| if (err < 0) |
| return err; |
| else if (err > 0) { |
| /* found one, |
| * select the path, unmute both input and output |
| */ |
| if (node->nconns > 1) |
| select_input_connection(codec, node, i); |
| unmute_input(codec, node, i); |
| unmute_output(codec, node); |
| if (! spec->pcm_vol_node) { |
| if (node->wid_caps & AC_WCAP_IN_AMP) { |
| spec->pcm_vol_node = node; |
| spec->pcm_vol_index = i; |
| } else if (node->wid_caps & AC_WCAP_OUT_AMP) { |
| spec->pcm_vol_node = node; |
| spec->pcm_vol_index = 0; |
| } |
| } |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * Look for the output PIN widget with the given jack type |
| * and parse the output path to that PIN. |
| * |
| * Returns the PIN node when the path to DAC is established. |
| */ |
| static struct hda_gnode *parse_output_jack(struct hda_codec *codec, |
| struct hda_gspec *spec, |
| int jack_type) |
| { |
| struct list_head *p; |
| struct hda_gnode *node; |
| int err; |
| |
| list_for_each(p, &spec->nid_list) { |
| node = list_entry(p, struct hda_gnode, list); |
| if (node->type != AC_WID_PIN) |
| continue; |
| /* output capable? */ |
| if (! (node->pin_caps & AC_PINCAP_OUT)) |
| continue; |
| if (jack_type >= 0) { |
| if (jack_type != get_defcfg_type(node)) |
| continue; |
| if (node->wid_caps & AC_WCAP_DIGITAL) |
| continue; /* skip SPDIF */ |
| } else { |
| /* output as default? */ |
| if (! (node->pin_ctl & AC_PINCTL_OUT_EN)) |
| continue; |
| } |
| clear_check_flags(spec); |
| err = parse_output_path(codec, spec, node); |
| if (err < 0) |
| return NULL; |
| else if (err > 0) { |
| /* unmute the PIN output */ |
| unmute_output(codec, node); |
| /* set PIN-Out enable */ |
| snd_hda_codec_write(codec, node->nid, 0, |
| AC_VERB_SET_PIN_WIDGET_CONTROL, |
| AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); |
| return node; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| /* |
| * parse outputs |
| */ |
| static int parse_output(struct hda_codec *codec) |
| { |
| struct hda_gspec *spec = codec->spec; |
| struct hda_gnode *node; |
| |
| /* |
| * Look for the output PIN widget |
| */ |
| /* first, look for the line-out pin */ |
| node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT); |
| if (node) /* found, remember the PIN node */ |
| spec->out_pin_node = node; |
| /* look for the HP-out pin */ |
| node = parse_output_jack(codec, spec, AC_JACK_HP_OUT); |
| if (node) { |
| if (! spec->out_pin_node) |
| spec->out_pin_node = node; |
| } |
| |
| if (! spec->out_pin_node) { |
| /* no line-out or HP pins found, |
| * then choose for the first output pin |
| */ |
| spec->out_pin_node = parse_output_jack(codec, spec, -1); |
| if (! spec->out_pin_node) |
| snd_printd("hda_generic: no proper output path found\n"); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * input MUX |
| */ |
| |
| /* control callbacks */ |
| static int capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_gspec *spec = codec->spec; |
| return snd_hda_input_mux_info(&spec->input_mux, uinfo); |
| } |
| |
| static int capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_gspec *spec = codec->spec; |
| |
| ucontrol->value.enumerated.item[0] = spec->cur_cap_src; |
| return 0; |
| } |
| |
| static int capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
| { |
| struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| struct hda_gspec *spec = codec->spec; |
| return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol, |
| spec->adc_node->nid, &spec->cur_cap_src); |
| } |
| |
| /* |
| * return the string name of the given input PIN widget |
| */ |
| static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl) |
| { |
| unsigned int location = get_defcfg_location(node); |
| switch (get_defcfg_type(node)) { |
| case AC_JACK_LINE_IN: |
| if ((location & 0x0f) == AC_JACK_LOC_FRONT) |
| return "Front Line"; |
| return "Line"; |
| case AC_JACK_CD: |
| if (pinctl) |
| *pinctl |= AC_PINCTL_VREF_GRD; |
| return "CD"; |
| case AC_JACK_AUX: |
| if ((location & 0x0f) == AC_JACK_LOC_FRONT) |
| return "Front Aux"; |
| return "Aux"; |
| case AC_JACK_MIC_IN: |
| if ((location & 0x0f) == AC_JACK_LOC_FRONT) |
| return "Front Mic"; |
| return "Mic"; |
| case AC_JACK_SPDIF_IN: |
| return "SPDIF"; |
| case AC_JACK_DIG_OTHER_IN: |
| return "Digital"; |
| } |
| return NULL; |
| } |
| |
| /* |
| * parse the nodes recursively until reach to the input PIN |
| * |
| * returns 0 if not found, 1 if found, or a negative error code. |
| */ |
| static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec, |
| struct hda_gnode *node) |
| { |
| int i, err; |
| unsigned int pinctl; |
| char *label; |
| const char *type; |
| |
| if (node->checked) |
| return 0; |
| |
| node->checked = 1; |
| if (node->type != AC_WID_PIN) { |
| for (i = 0; i < node->nconns; i++) { |
| struct hda_gnode *child; |
| child = hda_get_node(spec, node->conn_list[i]); |
| if (! child) |
| continue; |
| err = parse_adc_sub_nodes(codec, spec, child); |
| if (err < 0) |
| return err; |
| if (err > 0) { |
| /* found one, |
| * select the path, unmute both input and output |
| */ |
| if (node->nconns > 1) |
| 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; |
| } |