diff options
Diffstat (limited to 'sound/soc/codecs/wmt_vt1602.c')
| -rwxr-xr-x | sound/soc/codecs/wmt_vt1602.c | 981 |
1 files changed, 981 insertions, 0 deletions
diff --git a/sound/soc/codecs/wmt_vt1602.c b/sound/soc/codecs/wmt_vt1602.c new file mode 100755 index 00000000..fd625c95 --- /dev/null +++ b/sound/soc/codecs/wmt_vt1602.c @@ -0,0 +1,981 @@ +/*++ + * linux/sound/soc/codecs/wmt_vt1602.c + * WonderMedia I2S audio driver for ALSA + * + * Copyright c 2010 WonderMedia Technologies, Inc. + * + * 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, see <http://www.gnu.org/licenses/>. + * + * WonderMedia Technologies, Inc. + * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C +--*/ + + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/tlv.h> + +#include "wmt_vt1602.h" + +#define VT1602_VERSION "0.20" +#define I2C_DRIVERID_VT1602 90 + +/* + * Debug + */ +#define AUDIO_NAME "VT1602" +//#define WMT_VT1602_DEBUG 1 +//#define WMT_VT1602_DEBUG_DETAIL 1 + +#ifdef WMT_VT1602_DEBUG +#define DPRINTK(format, arg...) \ + printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg) +#else +#define DPRINTK(format, arg...) do {} while (0) +#endif + +#ifdef WMT_VT1602_DEBUG_DETAIL +#define DBG_DETAIL(format, arg...) \ + printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg) +#else +#define DBG_DETAIL(format, arg...) do {} while (0) +#endif + +#define err(format, arg...) \ + printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg) +#define info(format, arg...) \ + printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg) +#define warn(format, arg...) \ + printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg) + +/* codec private data */ +struct vt1602_priv { + unsigned int sysclk; + enum snd_soc_control_type control_type; + struct snd_pcm_substream *master_substream; + struct snd_pcm_substream *slave_substream; +}; + +/* + * vt1602 register cache + * We can't read the VT1602 register space when we + * are using 2 wire for device control, so we cache them instead. + */ +static const u16 vt1602_reg[] = { + 0x0050, 0x0050, 0x007f, 0x007f, /* 0 */ + 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ + 0x0000, 0x0000, 0x00fc, 0x00fc, /* 8 */ + 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ + 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ + 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ + 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ + 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ + 0x0000, 0x0000, 0x0100, 0x0000, /* 32 */ + 0x0000, 0x0100, 0x0050, 0x0050, /* 36 */ + 0x0079, 0x0079, 0x0079, /* 40 */ +}; + +extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen); + +#define vt1602_reset(c) snd_soc_write(c, VT1602_RESET, 0) + +/* + * VT1602 Controls + */ +static const char *vt1602_bass[] = {"Linear Control", "Adaptive Boost"}; +static const char *vt1602_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; +static const char *vt1602_treble[] = {"8kHz", "4kHz"}; +static const char *vt1602_3d_lc[] = {"200Hz", "500Hz"}; +static const char *vt1602_3d_uc[] = {"2.2kHz", "1.5kHz"}; +static const char *vt1602_3d_func[] = {"Capture", "Playback"}; +static const char *vt1602_alc_func[] = {"Off", "Right", "Left", "Stereo"}; +static const char *vt1602_ng_type[] = {"Constant PGA Gain", + "Mute ADC Output"}; +static const char *vt1602_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA", + "Differential"}; +static const char *vt1602_pga_sel[] = {"Line 1", "Line 2", "Line 3", + "Differential"}; +static const char *vt1602_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut", + "ROUT1"}; +static const char *vt1602_diff_sel[] = {"Line 1", "Line 2"}; +static const char *vt1602_adcpol[] = {"Normal", "L Invert", "R Invert", + "L + R Invert"}; +static const char *vt1602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; +static const char *vt1602_mono_mux[] = {"Stereo", "Mono (Left)", + "Mono (Right)", "Digital Mono"}; + +static const struct soc_enum vt1602_enum[] = { +SOC_ENUM_SINGLE(VT1602_BASS, 7, 2, vt1602_bass), +SOC_ENUM_SINGLE(VT1602_BASS, 6, 2, vt1602_bass_filter), +SOC_ENUM_SINGLE(VT1602_TREBLE, 6, 2, vt1602_treble), +SOC_ENUM_SINGLE(VT1602_3D, 5, 2, vt1602_3d_lc), +SOC_ENUM_SINGLE(VT1602_3D, 6, 2, vt1602_3d_uc), +SOC_ENUM_SINGLE(VT1602_3D, 7, 2, vt1602_3d_func), +SOC_ENUM_SINGLE(VT1602_ALC1, 7, 4, vt1602_alc_func), +SOC_ENUM_SINGLE(VT1602_NGATE, 1, 2, vt1602_ng_type), +SOC_ENUM_SINGLE(VT1602_LOUTM1, 0, 5, vt1602_line_mux), +SOC_ENUM_SINGLE(VT1602_ROUTM1, 0, 5, vt1602_line_mux), +SOC_ENUM_SINGLE(VT1602_LADCIN, 6, 4, vt1602_pga_sel), /* 10 */ +SOC_ENUM_SINGLE(VT1602_RADCIN, 6, 4, vt1602_pga_sel), +SOC_ENUM_SINGLE(VT1602_ADCTL2, 7, 4, vt1602_out3), +SOC_ENUM_SINGLE(VT1602_ADCIN, 8, 2, vt1602_diff_sel), +SOC_ENUM_SINGLE(VT1602_ADCDAC, 5, 4, vt1602_adcpol), +SOC_ENUM_SINGLE(VT1602_ADCDAC, 1, 4, vt1602_deemph), +SOC_ENUM_SINGLE(VT1602_ADCIN, 6, 4, vt1602_mono_mux), /* 16 */ + +}; + +static const struct snd_kcontrol_new vt1602_snd_controls[] = { + +SOC_DOUBLE_R("Capture Volume", VT1602_LINVOL, VT1602_RINVOL, 0, 63, 0), +SOC_DOUBLE_R("Capture ZC Switch", VT1602_LINVOL, VT1602_RINVOL, 6, 1, 0), +SOC_DOUBLE_R("Capture Switch", VT1602_LINVOL, VT1602_RINVOL, 7, 1, 1), + +SOC_DOUBLE_R("Headphone Playback ZC Switch", VT1602_LOUT1V, + VT1602_ROUT1V, 7, 1, 0), +SOC_DOUBLE_R("Speaker Playback ZC Switch", VT1602_LOUT2V, + VT1602_ROUT2V, 7, 1, 0), + +SOC_ENUM("Playback De-emphasis", vt1602_enum[15]), + +SOC_ENUM("Capture Polarity", vt1602_enum[14]), +SOC_SINGLE("Playback 6dB Attenuate", VT1602_ADCDAC, 7, 1, 0), +SOC_SINGLE("Capture 6dB Attenuate", VT1602_ADCDAC, 8, 1, 0), + +SOC_DOUBLE_R("Master Volume", VT1602_LOUT1V, VT1602_ROUT1V, 0, 127, 0), +//SOC_DOUBLE_R("PCM Volume", VT1602_LOUT1V, VT1602_ROUT1V, 0, 127, 0), + +/* +SOC_ENUM("Bass Boost", vt1602_enum[0]), +SOC_ENUM("Bass Filter", vt1602_enum[1]), +SOC_SINGLE("Bass Volume", VT1602_BASS, 0, 15, 1), + +SOC_SINGLE("Treble Volume", VT1602_TREBLE, 0, 15, 0), +SOC_ENUM("Treble Cut-off", vt1602_enum[2]), + +SOC_SINGLE("3D Switch", VT1602_3D, 0, 1, 0), +SOC_SINGLE("3D Volume", VT1602_3D, 1, 15, 0), +SOC_ENUM("3D Lower Cut-off", vt1602_enum[3]), +SOC_ENUM("3D Upper Cut-off", vt1602_enum[4]), +SOC_ENUM("3D Mode", vt1602_enum[5]), + +SOC_SINGLE("ALC Capture Target Volume", VT1602_ALC1, 0, 7, 0), +SOC_SINGLE("ALC Capture Max Volume", VT1602_ALC1, 4, 7, 0), +SOC_ENUM("ALC Capture Function", vt1602_enum[6]), +SOC_SINGLE("ALC Capture ZC Switch", VT1602_ALC2, 7, 1, 0), +SOC_SINGLE("ALC Capture Hold Time", VT1602_ALC2, 0, 15, 0), +SOC_SINGLE("ALC Capture Decay Time", VT1602_ALC3, 4, 15, 0), +SOC_SINGLE("ALC Capture Attack Time", VT1602_ALC3, 0, 15, 0), +SOC_SINGLE("ALC Capture NG Threshold", VT1602_NGATE, 3, 31, 0), +SOC_ENUM("ALC Capture NG Type", vt1602_enum[4]), +SOC_SINGLE("ALC Capture NG Switch", VT1602_NGATE, 0, 1, 0), +*/ + +SOC_SINGLE("Left ADC Capture Volume", VT1602_LADC, 0, 255, 0), +SOC_SINGLE("Right ADC Capture Volume", VT1602_RADC, 0, 255, 0), + +SOC_SINGLE("ZC Timeout Switch", VT1602_ADCTL1, 0, 1, 0), +SOC_SINGLE("Playback Invert Switch", VT1602_ADCTL1, 1, 1, 0), + +SOC_SINGLE("Right Speaker Playback Invert Switch", VT1602_ADCTL2, 4, 1, 0), + +/* Unimplemented */ +/* ADCDAC Bit 0 - ADCHPD */ +/* ADCDAC Bit 4 - HPOR */ +/* ADCTL1 Bit 2,3 - DATSEL */ +/* ADCTL1 Bit 4,5 - DMONOMIX */ +/* ADCTL1 Bit 6,7 - VSEL */ +/* ADCTL2 Bit 2 - LRCM */ +/* ADCTL2 Bit 3 - TRI */ +/* ADCTL3 Bit 5 - HPFLREN */ +/* ADCTL3 Bit 6 - VROI */ +/* ADCTL3 Bit 7,8 - ADCLRM */ +/* ADCIN Bit 4 - LDCM */ +/* ADCIN Bit 5 - RDCM */ + +SOC_DOUBLE_R("Mic Boost", VT1602_LADCIN, VT1602_RADCIN, 4, 3, 0), + +SOC_DOUBLE_R("Bypass Left Playback Volume", VT1602_LOUTM1, + VT1602_LOUTM2, 4, 7, 1), +SOC_DOUBLE_R("Bypass Right Playback Volume", VT1602_ROUTM1, + VT1602_ROUTM2, 4, 7, 1), +SOC_DOUBLE_R("Bypass Mono Playback Volume", VT1602_MOUTM1, + VT1602_MOUTM2, 4, 7, 1), + +SOC_SINGLE("Mono Playback ZC Switch", VT1602_MOUTV, 7, 1, 0), + +SOC_DOUBLE_R("Headphone Playback Volume", VT1602_LOUT1V, VT1602_ROUT1V, + 0, 127, 0), +SOC_DOUBLE_R("Speaker Playback Volume", VT1602_LOUT2V, VT1602_ROUT2V, + 0, 127, 0), + +SOC_SINGLE("Mono Playback Volume", VT1602_MOUTV, 0, 127, 0), + +}; + +/* + * DAPM Controls + */ + +/* Left Mixer */ +static const struct snd_kcontrol_new vt1602_left_mixer_controls[] = { +SOC_DAPM_SINGLE("Playback Switch", VT1602_LOUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_LOUTM1, 7, 1, 0), +SOC_DAPM_SINGLE("Right Playback Switch", VT1602_LOUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_LOUTM2, 7, 1, 0), +}; + +/* Right Mixer */ +static const struct snd_kcontrol_new vt1602_right_mixer_controls[] = { +SOC_DAPM_SINGLE("Left Playback Switch", VT1602_ROUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_ROUTM1, 7, 1, 0), +SOC_DAPM_SINGLE("Playback Switch", VT1602_ROUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_ROUTM2, 7, 1, 0), +}; + +/* Mono Mixer */ +static const struct snd_kcontrol_new vt1602_mono_mixer_controls[] = { +SOC_DAPM_SINGLE("Left Playback Switch", VT1602_MOUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_MOUTM1, 7, 1, 0), +SOC_DAPM_SINGLE("Right Playback Switch", VT1602_MOUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_MOUTM2, 7, 1, 0), +}; + +/* Left Line Mux */ +static const struct snd_kcontrol_new vt1602_left_line_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[8]); + +/* Right Line Mux */ +static const struct snd_kcontrol_new vt1602_right_line_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[9]); + +/* Left PGA Mux */ +static const struct snd_kcontrol_new vt1602_left_pga_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[10]); + +/* Right PGA Mux */ +static const struct snd_kcontrol_new vt1602_right_pga_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[11]); + +/* Out 3 Mux */ +static const struct snd_kcontrol_new vt1602_out3_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[12]); + +/* Differential Mux */ +static const struct snd_kcontrol_new vt1602_diffmux_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[13]); + +/* Mono ADC Mux */ +static const struct snd_kcontrol_new vt1602_monomux_controls = +SOC_DAPM_ENUM("Route", vt1602_enum[16]); + +static const struct snd_soc_dapm_widget vt1602_dapm_widgets[] = { + SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, + &vt1602_left_mixer_controls[0], + ARRAY_SIZE(vt1602_left_mixer_controls)), + SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, + &vt1602_right_mixer_controls[0], + ARRAY_SIZE(vt1602_right_mixer_controls)), + /* + SND_SOC_DAPM_MIXER("Mono Mixer", VT1602_PWR2, 2, 0, + &vt1602_mono_mixer_controls[0], + ARRAY_SIZE(vt1602_mono_mixer_controls)), + + SND_SOC_DAPM_PGA("Right Out 2", VT1602_PWR2, 3, 0, NULL, 0), + SND_SOC_DAPM_PGA("Left Out 2", VT1602_PWR2, 4, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right Out 1", VT1602_PWR2, 5, 0, NULL, 0), + SND_SOC_DAPM_PGA("Left Out 1", VT1602_PWR2, 6, 0, NULL, 0), + SND_SOC_DAPM_DAC("Right DAC", "Right Playback", VT1602_PWR2, 7, 0), + SND_SOC_DAPM_DAC("Left DAC", "Left Playback", VT1602_PWR2, 8, 0), + */ + /* + SND_SOC_DAPM_MICBIAS("Mic Bias", VT1602_PWR1, 1, 0), + SND_SOC_DAPM_ADC("Right ADC", "Right Capture", VT1602_PWR1, 2, 0), + SND_SOC_DAPM_ADC("Left ADC", "Left Capture", VT1602_PWR1, 3, 0), + + SND_SOC_DAPM_MUX("Left PGA Mux", VT1602_PWR1, 5, 0, + &vt1602_left_pga_controls), + SND_SOC_DAPM_MUX("Right PGA Mux", VT1602_PWR1, 4, 0, + &vt1602_right_pga_controls), + */ + SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, + &vt1602_left_line_controls), + SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, + &vt1602_right_line_controls), + + SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &vt1602_out3_controls), + /* + SND_SOC_DAPM_PGA("Out 3", VT1602_PWR2, 1, 0, NULL, 0), + SND_SOC_DAPM_PGA("Mono Out 1", VT1602_PWR2, 2, 0, NULL, 0), + */ + + SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, + &vt1602_diffmux_controls), + SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, + &vt1602_monomux_controls), + SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, + &vt1602_monomux_controls), + + SND_SOC_DAPM_OUTPUT("LOUT1"), + SND_SOC_DAPM_OUTPUT("ROUT1"), + SND_SOC_DAPM_OUTPUT("LOUT2"), + SND_SOC_DAPM_OUTPUT("ROUT2"), + SND_SOC_DAPM_OUTPUT("MONO1"), + SND_SOC_DAPM_OUTPUT("OUT3"), + SND_SOC_DAPM_OUTPUT("VREF"), + + SND_SOC_DAPM_INPUT("LINPUT1"), + SND_SOC_DAPM_INPUT("LINPUT2"), + SND_SOC_DAPM_INPUT("LINPUT3"), + SND_SOC_DAPM_INPUT("RINPUT1"), + SND_SOC_DAPM_INPUT("RINPUT2"), + SND_SOC_DAPM_INPUT("RINPUT3"), +}; + +static const struct snd_soc_dapm_route audio_map[] = { + /* left mixer */ + {"Left Mixer", "Playback Switch", "Left DAC"}, + {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, + {"Left Mixer", "Right Playback Switch", "Right DAC"}, + {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, + + /* right mixer */ + {"Right Mixer", "Left Playback Switch", "Left DAC"}, + {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, + {"Right Mixer", "Playback Switch", "Right DAC"}, + {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, + + /* left out 1 */ + {"Left Out 1", NULL, "Left Mixer"}, + {"LOUT1", NULL, "Left Out 1"}, + + /* left out 2 */ + {"Left Out 2", NULL, "Left Mixer"}, + {"LOUT2", NULL, "Left Out 2"}, + + /* right out 1 */ + {"Right Out 1", NULL, "Right Mixer"}, + {"ROUT1", NULL, "Right Out 1"}, + + /* right out 2 */ + {"Right Out 2", NULL, "Right Mixer"}, + {"ROUT2", NULL, "Right Out 2"}, + + /* mono mixer */ + {"Mono Mixer", "Left Playback Switch", "Left DAC"}, + {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, + {"Mono Mixer", "Right Playback Switch", "Right DAC"}, + {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, + + /* mono out */ + {"Mono Out 1", NULL, "Mono Mixer"}, + {"MONO1", NULL, "Mono Out 1"}, + + /* out 3 */ + {"Out3 Mux", "VREF", "VREF"}, + {"Out3 Mux", "ROUT1 + Vol", "ROUT1"}, + {"Out3 Mux", "ROUT1", "Right Mixer"}, + {"Out3 Mux", "MonoOut", "MONO1"}, + {"Out 3", NULL, "Out3 Mux"}, + {"OUT3", NULL, "Out 3"}, + + /* Left Line Mux */ + {"Left Line Mux", "Line 1", "LINPUT1"}, + {"Left Line Mux", "Line 2", "LINPUT2"}, + {"Left Line Mux", "Line 3", "LINPUT3"}, + {"Left Line Mux", "PGA", "Left PGA Mux"}, + {"Left Line Mux", "Differential", "Differential Mux"}, + + /* Right Line Mux */ + {"Right Line Mux", "Line 1", "RINPUT1"}, + {"Right Line Mux", "Line 2", "RINPUT2"}, + {"Right Line Mux", "Line 3", "RINPUT3"}, + {"Right Line Mux", "PGA", "Right PGA Mux"}, + {"Right Line Mux", "Differential", "Differential Mux"}, + + /* Left PGA Mux */ + {"Left PGA Mux", "Line 1", "LINPUT1"}, + {"Left PGA Mux", "Line 2", "LINPUT2"}, + {"Left PGA Mux", "Line 3", "LINPUT3"}, + {"Left PGA Mux", "Differential", "Differential Mux"}, + + /* Right PGA Mux */ + {"Right PGA Mux", "Line 1", "RINPUT1"}, + {"Right PGA Mux", "Line 2", "RINPUT2"}, + {"Right PGA Mux", "Line 3", "RINPUT3"}, + {"Right PGA Mux", "Differential", "Differential Mux"}, + + /* Differential Mux */ + {"Differential Mux", "Line 1", "LINPUT1"}, + {"Differential Mux", "Line 1", "RINPUT1"}, + {"Differential Mux", "Line 2", "LINPUT2"}, + {"Differential Mux", "Line 2", "RINPUT2"}, + + /* Left ADC Mux */ + {"Left ADC Mux", "Stereo", "Left PGA Mux"}, + {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, + {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, + + /* Right ADC Mux */ + {"Right ADC Mux", "Stereo", "Right PGA Mux"}, + {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, + {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, + + /* ADC */ + {"Left ADC", NULL, "Left ADC Mux"}, + {"Right ADC", NULL, "Right ADC Mux"}, +}; + +struct _coeff_div { + u32 mclk; + u32 rate; + u16 fs; + u8 sr:5; + u8 usb:1; +}; + +/* codec hifi mclk clock divider coefficients */ +static const struct _coeff_div coeff_div[] = { + /* 8k */ + {12288000, 8000, 1536, 0x6, 0x0}, + + /* 11.025k */ + {11289600, 11025, 1024, 0x18, 0x0}, + + /* 16k */ + {12288000, 16000, 768, 0xa, 0x0}, + + /* 22.05k */ + {11289600, 22050, 512, 0x1a, 0x0}, + + /* 32k */ + {12288000, 32000, 384, 0xc, 0x0}, + + /* 44.1k */ + {11289600, 44100, 256, 0x10, 0x0}, + + /* 48k */ + {12288000, 48000, 256, 0x0, 0x0}, + + /* 88.2k */ + {11289600, 88200, 128, 0x1e, 0x0}, + + /* 96k */ + {12288000, 96000, 128, 0xe, 0x0}, +}; + +static inline int get_coeff(int mclk, int rate) +{ + int i; + + DBG_DETAIL("mclk=%d, rate=%d", mclk, rate); + + for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { + if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) + return i; + } + + printk(KERN_ERR "vt1602: could not get coeff for mclk %d @ rate %d\n", + mclk, rate); + return -EINVAL; +} + +static int vt1602_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + u16 iface = snd_soc_read(codec, VT1602_IFACE) & 0x1f3; + //int coeff = get_coeff(vt1602->sysclk, params_rate(params)); + + DBG_DETAIL(); + + /* bit size */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + iface |= 0x0004; + break; + case SNDRV_PCM_FORMAT_S24_LE: + iface |= 0x0008; + break; + case SNDRV_PCM_FORMAT_S32_LE: + iface |= 0x000c; + break; + } + + /* set iface & srate */ + snd_soc_write(codec, VT1602_IFACE, iface); + + return 0; +} + +static int vt1602_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u16 mute_reg = snd_soc_read(codec, VT1602_ADCDAC) & 0xfff7; + + DBG_DETAIL(); + + if (mute) + snd_soc_write(codec, VT1602_ADCDAC, mute_reg | 0x8); + else + snd_soc_write(codec, VT1602_ADCDAC, mute_reg); + return 0; +} + +static int vt1602_set_dai_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct vt1602_priv *vt1602 = snd_soc_codec_get_drvdata(codec); + + DBG_DETAIL(); + + switch (freq) { + case 11289600: + case 12000000: + case 12288000: + case 16934400: + case 18432000: + vt1602->sysclk = freq; + return 0; + } + return -EINVAL; +} + +static int vt1602_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 iface = 0; + + DBG_DETAIL(); + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + iface = 0x0040; + break; + case SND_SOC_DAIFMT_CBS_CFS: + break; + default: + return -EINVAL; + } + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + iface |= 0x0002; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + iface |= 0x0001; + break; + case SND_SOC_DAIFMT_DSP_A: + iface |= 0x0003; + break; + case SND_SOC_DAIFMT_DSP_B: + iface |= 0x0013; + break; + default: + return -EINVAL; + } + + /* clock inversion */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + iface |= 0x0090; + break; + case SND_SOC_DAIFMT_IB_NF: + iface |= 0x0080; + break; + case SND_SOC_DAIFMT_NB_IF: + iface |= 0x0010; + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, VT1602_IFACE, iface); + return 0; +} + +static int vt1602_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level ) +{ + DBG_DETAIL(); + + switch (level) { + case SND_SOC_BIAS_ON: + /* set vmid to 50k and unmute dac */ + break; + case SND_SOC_BIAS_PREPARE: + /* set vmid to 5k for quick power up */ + break; + case SND_SOC_BIAS_STANDBY: + /* mute dac and set vmid to 500k, enable VREF */ + break; + case SND_SOC_BIAS_OFF: + break; + } + codec->dapm.bias_level = level; + return 0; +} + +static void vt1602_work(struct work_struct *work) +{ + struct snd_soc_codec *codec = + container_of(work, struct snd_soc_codec, dapm.delayed_work.work); + + DBG_DETAIL(); + + vt1602_set_bias_level(codec, codec->dapm.bias_level); +} + +#define VT1602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | \ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \ + SNDRV_PCM_RATE_96000) + +#define VT1602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_FLOAT) + +static const struct snd_soc_dai_ops vt1602_dai_ops = { + .hw_params = vt1602_pcm_hw_params, + .digital_mute = vt1602_mute, + .set_sysclk = vt1602_set_dai_sysclk, + .set_fmt = vt1602_set_dai_fmt, +}; + +struct snd_soc_dai_driver vt1602_dai = { + .name = "VT1602", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = VT1602_RATES, + .formats = VT1602_FORMATS,}, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = VT1602_RATES, + .formats = VT1602_FORMATS,}, + .ops = &vt1602_dai_ops, +}; + +static int vt1602_suspend(struct snd_soc_codec *codec) +{ + DBG_DETAIL(); + + vt1602_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; +} + +static int vt1602_resume(struct snd_soc_codec *codec) +{ + DBG_DETAIL(); + + snd_soc_cache_sync(codec); + vt1602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + /* charge vt1602 caps */ + if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { + vt1602_set_bias_level(codec, SND_SOC_BIAS_PREPARE); + codec->dapm.bias_level = SND_SOC_BIAS_ON; + schedule_delayed_work(&codec->dapm.delayed_work, + msecs_to_jiffies(1000)); + } + + return 0; +} + +static int wmt_vt1602_init(struct snd_soc_codec *codec) +{ + struct snd_soc_dapm_context *dapm = &codec->dapm; + int ret, reg; + + DBG_DETAIL(); + + /* charge output caps */ + vt1602_set_bias_level(codec, SND_SOC_BIAS_PREPARE); + codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; + schedule_delayed_work(&codec->dapm.delayed_work, msecs_to_jiffies(1000)); + + /* set the update bits */ + reg = snd_soc_read(codec, VT1602_LDAC); + snd_soc_write(codec, VT1602_LDAC, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_RDAC); + snd_soc_write(codec, VT1602_RDAC, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_LOUT1V); + snd_soc_write(codec, VT1602_LOUT1V, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_ROUT1V); + snd_soc_write(codec, VT1602_ROUT1V, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_LOUT2V); + snd_soc_write(codec, VT1602_LOUT2V, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_ROUT2V); + snd_soc_write(codec, VT1602_ROUT2V, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_LINVOL); + snd_soc_write(codec, VT1602_LINVOL, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_RINVOL); + snd_soc_write(codec, VT1602_RINVOL, reg | 0x0100); + reg = snd_soc_read(codec, VT1602_LOUTM1); + snd_soc_write(codec, VT1602_LOUTM1, reg); + reg = snd_soc_read(codec, VT1602_LOUTM2); + snd_soc_write(codec, VT1602_LOUTM2, reg); + reg = snd_soc_read(codec, VT1602_ROUTM1); + snd_soc_write(codec, VT1602_ROUTM1, reg); + reg = snd_soc_read(codec, VT1602_ROUTM2); + snd_soc_write(codec, VT1602_ROUTM2, reg); + snd_soc_write(codec, VT1602_PWR1, 0x1FE); + snd_soc_write(codec, VT1602_PWR2, 0x1E0); + snd_soc_write(codec, VT1602_LADCIN, 0x020); + snd_soc_write(codec, VT1602_RADCIN, 0x020); + snd_soc_write(codec, VT1602_ADCTL3, 0x040); + + ret = snd_soc_add_codec_controls(codec, vt1602_snd_controls, + ARRAY_SIZE(vt1602_snd_controls)); + if (ret) { + info("snd_soc_add_codec_controls fail"); + return ret; + } + + ret = snd_soc_dapm_new_controls(dapm, vt1602_dapm_widgets, + ARRAY_SIZE(vt1602_dapm_widgets)); + if (ret) { + info("snd_soc_dapm_new_controls fail"); + return ret; + } + + ret = snd_soc_dapm_add_routes(dapm, audio_map, + ARRAY_SIZE(audio_map)); + if (ret) { + info("snd_soc_dapm_add_routes fail"); + return 0; + } + + return ret; +} + +static int vt1602_probe(struct snd_soc_codec *codec) +{ + struct vt1602_priv *vt1602 = snd_soc_codec_get_drvdata(codec); + int ret; + + pr_info("VT1602 Audio Codec %s\n", VT1602_VERSION); + + ret = snd_soc_codec_set_cache_io(codec, 7, 9, vt1602->control_type); + if (ret < 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; + } + + ret = vt1602_reset(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to issue reset: %d\n", ret); + return ret; + } + + INIT_DELAYED_WORK(&codec->dapm.delayed_work, vt1602_work); + + ret = wmt_vt1602_init(codec); + if (ret) + info("vt1602_probe fail"); + return ret; +} + +/* + * This function forces any delayed work to be queued and run. + */ +static int run_delayed_work(struct delayed_work *dwork) +{ + int ret; + + DBG_DETAIL(); + + /* cancel any work waiting to be queued. */ + ret = cancel_delayed_work(dwork); + + /* if there was any work waiting then we run it now and + * wait for it's completion */ + if (ret) { + schedule_delayed_work(dwork, 0); + flush_scheduled_work(); + } + return ret; +} + +/* remove everything here */ +static int vt1602_remove(struct snd_soc_codec *codec) +{ + DBG_DETAIL(); + + vt1602_set_bias_level(codec, SND_SOC_BIAS_OFF); + run_delayed_work(&codec->dapm.delayed_work); + + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_vt1602 = { + .probe = vt1602_probe, + .remove = vt1602_remove, + .suspend = vt1602_suspend, + .resume = vt1602_resume, + .set_bias_level = vt1602_set_bias_level, + .reg_cache_size = ARRAY_SIZE(vt1602_reg), + .reg_word_size = sizeof(u16), + .reg_cache_default = vt1602_reg, + + /*.controls = vt1602_snd_controls, + .num_controls = ARRAY_SIZE(vt1602_snd_controls), + .dapm_widgets = vt1602_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(vt1602_dapm_widgets), + .dapm_routes = audio_map, + .num_dapm_routes = ARRAY_SIZE(audio_map),*/ +}; + +#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) +static int __devinit vt1602_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct vt1602_priv *vt1602; + int ret; + + DBG_DETAIL(); + + vt1602 = devm_kzalloc(&i2c->dev, sizeof(struct vt1602_priv), GFP_KERNEL); + if (vt1602 == NULL) { + info("vt1602_i2c_probe kzalloc fail"); + return -ENOMEM; + } + + i2c_set_clientdata(i2c, vt1602); + vt1602->control_type = SND_SOC_I2C; + + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_vt1602, &vt1602_dai, 1); + + return ret; +} + +static int __devexit vt1602_i2c_remove(struct i2c_client *client) +{ + DBG_DETAIL(); + + snd_soc_unregister_codec(&client->dev); + + return 0; +} + +static const struct i2c_device_id vt1602_i2c_id[] = { + { "vt1602", 1}, + { } +}; +MODULE_DEVICE_TABLE(i2c, vt1602_i2c_id); + +/* corgi i2c codec control layer */ +static struct i2c_driver vt1602_i2c_driver = { + .driver = { + .name = "vt1602", + .owner = THIS_MODULE, + }, + .probe = vt1602_i2c_probe, + .remove = __devexit_p(vt1602_i2c_remove), + .id_table = vt1602_i2c_id, +}; +#endif + +static struct i2c_board_info __initdata wmt_vt1602_board_info[] = { + { + I2C_BOARD_INFO("vt1602", 0x1a), + }, +}; + +static int __init vt1602_modinit(void) +{ + char buf[80]; + int varlen = 80; + int ret = 0; + char codec_name[6]; + struct i2c_adapter *adapter = NULL; + + DBG_DETAIL(); + + ret = wmt_getsyspara("wmt.audio.i2s", buf, &varlen); + + if (ret == 0) { + sscanf(buf, "%6s", codec_name); + + if (strcmp(codec_name, "vt1602")) { + info("vt1602 string not found"); + return -EINVAL; + } + } + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + /*i2c_register_board_info(1, wmt_vt1602_board_info, + ARRAY_SIZE(wmt_vt1602_board_info));*/ + + adapter = i2c_get_adapter(1); + if (adapter == NULL) { + err("can not get i2c adapter, client address error"); + return -ENODEV; + } + + if (i2c_new_device(adapter, wmt_vt1602_board_info) == NULL) { + err("allocate i2c client failed"); + return -ENOMEM; + } + + i2c_put_adapter(adapter); + + ret = i2c_add_driver(&vt1602_i2c_driver); + if (ret) { + info("i2c_add_driver fail"); + } +#endif + + return ret; +} +module_init(vt1602_modinit); + +static void __exit vt1602_exit(void) +{ + DBG_DETAIL(); + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + i2c_del_driver(&vt1602_i2c_driver); +#endif +} +module_exit(vt1602_exit); + +MODULE_DESCRIPTION("WMT [ALSA SoC] driver"); +MODULE_AUTHOR("WonderMedia Technologies, Inc."); +MODULE_LICENSE("GPL"); |