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![Takashi Iwai](/assets/img/avatar_default.png)
Added CONFIG_SND_HDA_POWER_SAVE kconfig. It's an experimental option to achieve an aggressive power-saving. With this option, the driver will turn on/off the power of each codec and controller chip dynamically on demand. The patch introduces a new module option 'power_save'. It specifies the second of time-out for automatic power-down. As default, it's 10 seconds. Setting 0 means to suppress the power-saving feature. The codec may have analog-input loopbacks, which are usually represented by mixer elements such as 'Mic Playback Switch' or 'CD Playback Switch'. When these are on, we cannot turn off the mixer and the codec chip has to be kept on. For bookkeeping these states, a new codec-callback is introduced. For the bus-controller side, a new callback pm_notify is introduced, which can be used to turn on/off the contoller appropriately. Note that this power-saving might cause slight click-noise at power-on/off. Also, it might take some time to wake up the codec, and might even drop some tones at the very beginning. This seems to be the side-effect of turning off the controller chip. This turn-off of the controller can be disabled by undefining HDA_POWER_SAVE_RESET_CONTOLLER in hda_intel.c. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
384 lines
11 KiB
C
384 lines
11 KiB
C
/*
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* Universal Interface for Intel High Definition Audio Codec
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*
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* Generic proc interface
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*
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* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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*
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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 <sound/core.h>
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#include "hda_codec.h"
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#include "hda_local.h"
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static const char *get_wid_type_name(unsigned int wid_value)
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{
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static char *names[16] = {
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[AC_WID_AUD_OUT] = "Audio Output",
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[AC_WID_AUD_IN] = "Audio Input",
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[AC_WID_AUD_MIX] = "Audio Mixer",
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[AC_WID_AUD_SEL] = "Audio Selector",
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[AC_WID_PIN] = "Pin Complex",
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[AC_WID_POWER] = "Power Widget",
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[AC_WID_VOL_KNB] = "Volume Knob Widget",
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[AC_WID_BEEP] = "Beep Generator Widget",
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[AC_WID_VENDOR] = "Vendor Defined Widget",
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};
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wid_value &= 0xf;
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if (names[wid_value])
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return names[wid_value];
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else
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return "UNKNOWN Widget";
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}
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static void print_amp_caps(struct snd_info_buffer *buffer,
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struct hda_codec *codec, hda_nid_t nid, int dir)
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{
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unsigned int caps;
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caps = snd_hda_param_read(codec, nid,
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dir == HDA_OUTPUT ?
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AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
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if (caps == -1 || caps == 0) {
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snd_iprintf(buffer, "N/A\n");
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return;
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}
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snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
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"mute=%x\n",
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caps & AC_AMPCAP_OFFSET,
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(caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
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(caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
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(caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
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}
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static void print_amp_vals(struct snd_info_buffer *buffer,
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struct hda_codec *codec, hda_nid_t nid,
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int dir, int stereo, int indices)
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{
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unsigned int val;
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int i;
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dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
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for (i = 0; i < indices; i++) {
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snd_iprintf(buffer, " [");
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if (stereo) {
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val = snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_AMP_GAIN_MUTE,
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AC_AMP_GET_LEFT | dir | i);
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snd_iprintf(buffer, "0x%02x ", val);
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}
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val = snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_AMP_GAIN_MUTE,
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AC_AMP_GET_RIGHT | dir | i);
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snd_iprintf(buffer, "0x%02x]", val);
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}
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snd_iprintf(buffer, "\n");
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}
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static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
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{
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static unsigned int rates[] = {
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8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
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96000, 176400, 192000, 384000
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};
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int i;
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pcm &= AC_SUPPCM_RATES;
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snd_iprintf(buffer, " rates [0x%x]:", pcm);
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for (i = 0; i < ARRAY_SIZE(rates); i++)
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if (pcm & (1 << i))
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snd_iprintf(buffer, " %d", rates[i]);
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snd_iprintf(buffer, "\n");
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}
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static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
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{
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static unsigned int bits[] = { 8, 16, 20, 24, 32 };
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int i;
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pcm = (pcm >> 16) & 0xff;
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snd_iprintf(buffer, " bits [0x%x]:", pcm);
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for (i = 0; i < ARRAY_SIZE(bits); i++)
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if (pcm & (1 << i))
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snd_iprintf(buffer, " %d", bits[i]);
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snd_iprintf(buffer, "\n");
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}
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static void print_pcm_formats(struct snd_info_buffer *buffer,
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unsigned int streams)
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{
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snd_iprintf(buffer, " formats [0x%x]:", streams & 0xf);
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if (streams & AC_SUPFMT_PCM)
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snd_iprintf(buffer, " PCM");
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if (streams & AC_SUPFMT_FLOAT32)
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snd_iprintf(buffer, " FLOAT");
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if (streams & AC_SUPFMT_AC3)
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snd_iprintf(buffer, " AC3");
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snd_iprintf(buffer, "\n");
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}
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static void print_pcm_caps(struct snd_info_buffer *buffer,
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struct hda_codec *codec, hda_nid_t nid)
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{
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unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
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unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
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if (pcm == -1 || stream == -1) {
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snd_iprintf(buffer, "N/A\n");
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return;
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}
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print_pcm_rates(buffer, pcm);
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print_pcm_bits(buffer, pcm);
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print_pcm_formats(buffer, stream);
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}
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static const char *get_jack_location(u32 cfg)
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{
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static char *bases[7] = {
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"N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",
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};
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static unsigned char specials_idx[] = {
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0x07, 0x08,
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0x17, 0x18, 0x19,
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0x37, 0x38
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};
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static char *specials[] = {
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"Rear Panel", "Drive Bar",
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"Riser", "HDMI", "ATAPI",
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"Mobile-In", "Mobile-Out"
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};
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int i;
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cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;
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if ((cfg & 0x0f) < 7)
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return bases[cfg & 0x0f];
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for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {
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if (cfg == specials_idx[i])
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return specials[i];
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}
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return "UNKNOWN";
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}
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static const char *get_jack_connection(u32 cfg)
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{
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static char *names[16] = {
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"Unknown", "1/8", "1/4", "ATAPI",
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"RCA", "Optical","Digital", "Analog",
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"DIN", "XLR", "RJ11", "Comb",
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NULL, NULL, NULL, "Other"
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};
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cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
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if (names[cfg])
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return names[cfg];
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else
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return "UNKNOWN";
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}
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static const char *get_jack_color(u32 cfg)
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{
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static char *names[16] = {
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"Unknown", "Black", "Grey", "Blue",
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"Green", "Red", "Orange", "Yellow",
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"Purple", "Pink", NULL, NULL,
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NULL, NULL, "White", "Other",
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};
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cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
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if (names[cfg])
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return names[cfg];
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else
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return "UNKNOWN";
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}
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static void print_pin_caps(struct snd_info_buffer *buffer,
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struct hda_codec *codec, hda_nid_t nid)
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{
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static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
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static char *jack_types[16] = {
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"Line Out", "Speaker", "HP Out", "CD",
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"SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",
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"Line In", "Aux", "Mic", "Telephony",
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"SPDIF In", "Digitial In", "Reserved", "Other"
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};
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static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };
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unsigned int caps;
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caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
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snd_iprintf(buffer, " Pincap 0x08%x:", caps);
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if (caps & AC_PINCAP_IN)
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snd_iprintf(buffer, " IN");
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if (caps & AC_PINCAP_OUT)
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snd_iprintf(buffer, " OUT");
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if (caps & AC_PINCAP_HP_DRV)
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snd_iprintf(buffer, " HP");
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if (caps & AC_PINCAP_EAPD)
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snd_iprintf(buffer, " EAPD");
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if (caps & AC_PINCAP_PRES_DETECT)
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snd_iprintf(buffer, " Detect");
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snd_iprintf(buffer, "\n");
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caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
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snd_iprintf(buffer, " Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
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jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
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jack_types[(caps & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT],
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jack_locations[(caps >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3],
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get_jack_location(caps));
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snd_iprintf(buffer, " Conn = %s, Color = %s\n",
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get_jack_connection(caps),
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get_jack_color(caps));
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}
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static void print_codec_info(struct snd_info_entry *entry,
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struct snd_info_buffer *buffer)
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{
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struct hda_codec *codec = entry->private_data;
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char buf[32];
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hda_nid_t nid;
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int i, nodes;
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snd_hda_get_codec_name(codec, buf, sizeof(buf));
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snd_iprintf(buffer, "Codec: %s\n", buf);
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snd_iprintf(buffer, "Address: %d\n", codec->addr);
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snd_iprintf(buffer, "Vendor Id: 0x%x\n", codec->vendor_id);
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snd_iprintf(buffer, "Subsystem Id: 0x%x\n", codec->subsystem_id);
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snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
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if (codec->mfg)
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snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
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else
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snd_iprintf(buffer, "No Modem Function Group found\n");
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if (! codec->afg)
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return;
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snd_hda_power_up(codec);
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snd_iprintf(buffer, "Default PCM:\n");
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print_pcm_caps(buffer, codec, codec->afg);
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snd_iprintf(buffer, "Default Amp-In caps: ");
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print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
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snd_iprintf(buffer, "Default Amp-Out caps: ");
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print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
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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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snd_iprintf(buffer, "Invalid AFG subtree\n");
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snd_hda_power_down(codec);
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return;
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}
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for (i = 0; i < nodes; i++, nid++) {
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unsigned int wid_caps =
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snd_hda_param_read(codec, nid,
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AC_PAR_AUDIO_WIDGET_CAP);
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unsigned int wid_type =
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(wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
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int conn_len = 0;
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hda_nid_t conn[HDA_MAX_CONNECTIONS];
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snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
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get_wid_type_name(wid_type), wid_caps);
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if (wid_caps & AC_WCAP_STEREO)
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snd_iprintf(buffer, " Stereo");
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else
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snd_iprintf(buffer, " Mono");
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if (wid_caps & AC_WCAP_DIGITAL)
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snd_iprintf(buffer, " Digital");
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if (wid_caps & AC_WCAP_IN_AMP)
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snd_iprintf(buffer, " Amp-In");
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if (wid_caps & AC_WCAP_OUT_AMP)
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snd_iprintf(buffer, " Amp-Out");
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snd_iprintf(buffer, "\n");
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if (wid_caps & AC_WCAP_CONN_LIST)
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conn_len = snd_hda_get_connections(codec, nid, conn,
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HDA_MAX_CONNECTIONS);
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if (wid_caps & AC_WCAP_IN_AMP) {
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snd_iprintf(buffer, " Amp-In caps: ");
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print_amp_caps(buffer, codec, nid, HDA_INPUT);
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snd_iprintf(buffer, " Amp-In vals: ");
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print_amp_vals(buffer, codec, nid, HDA_INPUT,
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wid_caps & AC_WCAP_STEREO, conn_len);
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}
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if (wid_caps & AC_WCAP_OUT_AMP) {
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snd_iprintf(buffer, " Amp-Out caps: ");
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print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
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snd_iprintf(buffer, " Amp-Out vals: ");
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print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
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wid_caps & AC_WCAP_STEREO, 1);
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}
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if (wid_type == AC_WID_PIN) {
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unsigned int pinctls;
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print_pin_caps(buffer, codec, nid);
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pinctls = snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_PIN_WIDGET_CONTROL,
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0);
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snd_iprintf(buffer, " Pin-ctls: 0x%02x:", pinctls);
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if (pinctls & AC_PINCTL_IN_EN)
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snd_iprintf(buffer, " IN");
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if (pinctls & AC_PINCTL_OUT_EN)
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snd_iprintf(buffer, " OUT");
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if (pinctls & AC_PINCTL_HP_EN)
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snd_iprintf(buffer, " HP");
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snd_iprintf(buffer, "\n");
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}
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if ((wid_type == AC_WID_AUD_OUT || wid_type == AC_WID_AUD_IN) &&
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(wid_caps & AC_WCAP_FORMAT_OVRD)) {
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snd_iprintf(buffer, " PCM:\n");
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print_pcm_caps(buffer, codec, nid);
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}
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if (wid_caps & AC_WCAP_POWER)
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snd_iprintf(buffer, " Power: 0x%x\n",
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snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_POWER_STATE,
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0));
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if (wid_caps & AC_WCAP_CONN_LIST) {
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int c, curr = -1;
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if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
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curr = snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_CONNECT_SEL, 0);
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snd_iprintf(buffer, " Connection: %d\n", conn_len);
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snd_iprintf(buffer, " ");
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for (c = 0; c < conn_len; c++) {
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snd_iprintf(buffer, " 0x%02x", conn[c]);
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if (c == curr)
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snd_iprintf(buffer, "*");
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}
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snd_iprintf(buffer, "\n");
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}
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}
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snd_hda_power_down(codec);
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}
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/*
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* create a proc read
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*/
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int snd_hda_codec_proc_new(struct hda_codec *codec)
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{
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char name[32];
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struct snd_info_entry *entry;
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int err;
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snprintf(name, sizeof(name), "codec#%d", codec->addr);
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err = snd_card_proc_new(codec->bus->card, name, &entry);
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if (err < 0)
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return err;
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snd_info_set_text_ops(entry, codec, print_codec_info);
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return 0;
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}
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