ac97_proc.c

linux2.6.16版本

/*
 *  Copyright (c) by Jaroslav Kysela <[e-mail]>
 *  Universal interface for Audio Codec '97
 *
 *  For more details look to AC '97 component specification revision 2.2
 *  by Intel Corporation (http://developer.intel.com).
 *
 *
 *   This program 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 program 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/slab.h>
#include <sound/core.h>
#include <sound/ac97_codec.h>
#include <sound/asoundef.h>
#include "ac97_local.h"
#include "ac97_id.h"

/*
 * proc interface
 */

static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
{
	int header = 0, function;
	unsigned short info, sense_info;
	static const char *function_names[12] = {
		"Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
		"Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
		"Aux In", "Mono Out"
	};
	static const char *locations[8] = {
		"Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
		"reserved", "reserved", "reserved", "NC/unused"
	};

	for (function = 0; function < 12; ++function) {
		snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
		info = snd_ac97_read(ac97, AC97_FUNC_INFO);
		if (!(info & 0x0001))
			continue;
		if (!header) {
			snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
			header = 1;
		}
		sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
		snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
			    function_names[function],
			    (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
			    ((info & 0x0800) >> 11) * 5,
			    info & 0x0400 ? 'X' : '-',
			    (info & 0x03e0) >> 5,
			    locations[sense_info >> 13]);
	}
}

static const char *snd_ac97_stereo_enhancements[] =
{
  /*   0 */ "No 3D Stereo Enhancement",
  /*   1 */ "Analog Devices Phat Stereo",
  /*   2 */ "Creative Stereo Enhancement",
  /*   3 */ "National Semi 3D Stereo Enhancement",
  /*   4 */ "YAMAHA Ymersion",
  /*   5 */ "BBE 3D Stereo Enhancement",
  /*   6 */ "Crystal Semi 3D Stereo Enhancement",
  /*   7 */ "Qsound QXpander",
  /*   8 */ "Spatializer 3D Stereo Enhancement",
  /*   9 */ "SRS 3D Stereo Enhancement",
  /*  10 */ "Platform Tech 3D Stereo Enhancement",
  /*  11 */ "AKM 3D Audio",
  /*  12 */ "Aureal Stereo Enhancement",
  /*  13 */ "Aztech 3D Enhancement",
  /*  14 */ "Binaura 3D Audio Enhancement",
  /*  15 */ "ESS Technology Stereo Enhancement",
  /*  16 */ "Harman International VMAx",
  /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
  /*  18 */ "Philips Incredible Sound",
  /*  19 */ "Texas Instruments 3D Stereo Enhancement",
  /*  20 */ "VLSI Technology 3D Stereo Enhancement",
  /*  21 */ "TriTech 3D Stereo Enhancement",
  /*  22 */ "Realtek 3D Stereo Enhancement",
  /*  23 */ "Samsung 3D Stereo Enhancement",
  /*  24 */ "Wolfson Microelectronics 3D Enhancement",
  /*  25 */ "Delta Integration 3D Enhancement",
  /*  26 */ "SigmaTel 3D Enhancement",
  /*  27 */ "IC Ensemble/KS Waves",
  /*  28 */ "Rockwell 3D Stereo Enhancement",
  /*  29 */ "Reserved 29",
  /*  30 */ "Reserved 30",
  /*  31 */ "Reserved 31"
};

static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
{
	char name[64];
	unsigned short val, tmp, ext, mext;
	static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
	static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
	static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
	static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };

	snd_ac97_get_name(NULL, ac97->id, name, 0);
	snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);

	if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
		goto __modem;

        snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
	            ac97->subsystem_vendor);
        snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
                    ac97->subsystem_device);

	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
		val = snd_ac97_read(ac97, AC97_INT_PAGING);
		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
				     AC97_PAGE_MASK, AC97_PAGE_1);
		tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
		snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
		snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
		snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
			    snd_ac97_read(ac97, AC97_PCI_SVID));
		snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
			    snd_ac97_read(ac97, AC97_PCI_SID));
		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
	}

	// val = snd_ac97_read(ac97, AC97_RESET);
	val = ac97->caps;
	snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
	    	    val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
		    val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
		    val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
		    val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
		    val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
		    val & AC97_BC_LOUDNESS ? " -loudness-" : "");
	tmp = ac97->caps & AC97_BC_DAC_MASK;
	snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
		    tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
		    tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
		    tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
		    tmp == AC97_BC_DAC_MASK ? "???" : "");
	tmp = ac97->caps & AC97_BC_ADC_MASK;
	snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
		    tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
		    tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
		    tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
		    tmp == AC97_BC_ADC_MASK ? "???" : "");
	snd_iprintf(buffer, "3D enhancement   : %s\n",
		snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
	snd_iprintf(buffer, "\nCurrent setup\n");
	val = snd_ac97_read(ac97, AC97_MIC);
	snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
	val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
	snd_iprintf(buffer, "POP path         : %s 3D\n"
		    "Sim. stereo      : %s\n"
		    "3D enhancement   : %s\n"
		    "Loudness         : %s\n"
		    "Mono output      : %s\n"
		    "Mic select       : %s\n"
		    "ADC/DAC loopback : %s\n",
		    val & 0x8000 ? "post" : "pre",
		    val & 0x4000 ? "on" : "off",
		    val & 0x2000 ? "on" : "off",
		    val & 0x1000 ? "on" : "off",
		    val & 0x0200 ? "Mic" : "MIX",
		    val & 0x0100 ? "Mic2" : "Mic1",
		    val & 0x0080 ? "on" : "off");
	if (ac97->ext_id & AC97_EI_DRA)
		snd_iprintf(buffer, "Double rate slots: %s\n",
			    double_rate_slots[(val >> 10) & 3]);

	ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
	if (ext == 0)
		goto __modem;
		
	snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
			(ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
			(ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
			ext & AC97_EI_AMAP ? " AMAP" : "",
			ext & AC97_EI_LDAC ? " LDAC" : "",
			ext & AC97_EI_SDAC ? " SDAC" : "",
			ext & AC97_EI_CDAC ? " CDAC" : "",
			(ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
			ext & AC97_EI_VRM ? " VRM" : "",
			ext & AC97_EI_SPDIF ? " SPDIF" : "",
			ext & AC97_EI_DRA ? " DRA" : "",
			ext & AC97_EI_VRA ? " VRA" : "");
	val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
	snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
			val & AC97_EA_PRL ? " PRL" : "",
			val & AC97_EA_PRK ? " PRK" : "",
			val & AC97_EA_PRJ ? " PRJ" : "",
			val & AC97_EA_PRI ? " PRI" : "",
			val & AC97_EA_SPCV ? " SPCV" : "",
			val & AC97_EA_MDAC ? " MADC" : "",
			val & AC97_EA_LDAC ? " LDAC" : "",
			val & AC97_EA_SDAC ? " SDAC" : "",
			val & AC97_EA_CDAC ? " CDAC" : "",
			ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
			val & AC97_EA_VRM ? " VRM" : "",
			val & AC97_EA_SPDIF ? " SPDIF" : "",
			val & AC97_EA_DRA ? " DRA" : "",
			val & AC97_EA_VRA ? " VRA" : "");
	if (ext & AC97_EI_VRA) {	/* VRA */
		val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
		snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
		if (ext & AC97_EI_SDAC) {
			val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
			snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
		}
		if (ext & AC97_EI_LDAC) {
			val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
			snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
		}
		val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
		snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
	}
	if (ext & AC97_EI_VRM) {
		val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
		snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
	}
	if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF)) {
	        if (ac97->flags & AC97_CS_SPDIF)
			val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
		else
			val = snd_ac97_read(ac97, AC97_SPDIF);

		snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
			val & AC97_SC_PRO ? " PRO" : " Consumer",
			val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
			val & AC97_SC_COPY ? "" : " Copyright",