diff options
Diffstat (limited to 'sound/pci/ice1712/wm8776.c')
| -rw-r--r-- | sound/pci/ice1712/wm8776.c | 633 |
1 files changed, 633 insertions, 0 deletions
diff --git a/sound/pci/ice1712/wm8776.c b/sound/pci/ice1712/wm8776.c new file mode 100644 index 00000000000..a3c05fe5daf --- /dev/null +++ b/sound/pci/ice1712/wm8776.c @@ -0,0 +1,633 @@ +/* + * ALSA driver for ICEnsemble VT17xx + * + * Lowlevel functions for WM8776 codec + * + * Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org> + * + * 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 <linux/delay.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/tlv.h> +#include "wm8776.h" + +/* low-level access */ + +static void snd_wm8776_write(struct snd_wm8776 *wm, u16 addr, u16 data) +{ + u8 bus_addr = addr << 1 | data >> 8; /* addr + 9th data bit */ + u8 bus_data = data & 0xff; /* remaining 8 data bits */ + + if (addr < WM8776_REG_RESET) + wm->regs[addr] = data; + wm->ops.write(wm, bus_addr, bus_data); +} + +/* register-level functions */ + +static void snd_wm8776_activate_ctl(struct snd_wm8776 *wm, + const char *ctl_name, + bool active) +{ + struct snd_card *card = wm->card; + struct snd_kcontrol *kctl; + struct snd_kcontrol_volatile *vd; + struct snd_ctl_elem_id elem_id; + unsigned int index_offset; + + memset(&elem_id, 0, sizeof(elem_id)); + strncpy(elem_id.name, ctl_name, sizeof(elem_id.name)); + elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kctl = snd_ctl_find_id(card, &elem_id); + if (!kctl) + return; + index_offset = snd_ctl_get_ioff(kctl, &kctl->id); + vd = &kctl->vd[index_offset]; + if (active) + vd->access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; + else + vd->access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id); +} + +static void snd_wm8776_update_agc_ctl(struct snd_wm8776 *wm) +{ + int i, flags_on = 0, flags_off = 0; + + switch (wm->agc_mode) { + case WM8776_AGC_OFF: + flags_off = WM8776_FLAG_LIM | WM8776_FLAG_ALC; + break; + case WM8776_AGC_LIM: + flags_off = WM8776_FLAG_ALC; + flags_on = WM8776_FLAG_LIM; + break; + case WM8776_AGC_ALC_R: + case WM8776_AGC_ALC_L: + case WM8776_AGC_ALC_STEREO: + flags_off = WM8776_FLAG_LIM; + flags_on = WM8776_FLAG_ALC; + break; + } + + for (i = 0; i < WM8776_CTL_COUNT; i++) + if (wm->ctl[i].flags & flags_off) + snd_wm8776_activate_ctl(wm, wm->ctl[i].name, false); + else if (wm->ctl[i].flags & flags_on) + snd_wm8776_activate_ctl(wm, wm->ctl[i].name, true); +} + +static void snd_wm8776_set_agc(struct snd_wm8776 *wm, u16 agc, u16 nothing) +{ + u16 alc1 = wm->regs[WM8776_REG_ALCCTRL1] & ~WM8776_ALC1_LCT_MASK; + u16 alc2 = wm->regs[WM8776_REG_ALCCTRL2] & ~WM8776_ALC2_LCEN; + + switch (agc) { + case 0: /* Off */ + wm->agc_mode = WM8776_AGC_OFF; + break; + case 1: /* Limiter */ + alc2 |= WM8776_ALC2_LCEN; + wm->agc_mode = WM8776_AGC_LIM; + break; + case 2: /* ALC Right */ + alc1 |= WM8776_ALC1_LCSEL_ALCR; + alc2 |= WM8776_ALC2_LCEN; + wm->agc_mode = WM8776_AGC_ALC_R; + break; + case 3: /* ALC Left */ + alc1 |= WM8776_ALC1_LCSEL_ALCL; + alc2 |= WM8776_ALC2_LCEN; + wm->agc_mode = WM8776_AGC_ALC_L; + break; + case 4: /* ALC Stereo */ + alc1 |= WM8776_ALC1_LCSEL_ALCSTEREO; + alc2 |= WM8776_ALC2_LCEN; + wm->agc_mode = WM8776_AGC_ALC_STEREO; + break; + } + snd_wm8776_write(wm, WM8776_REG_ALCCTRL1, alc1); + snd_wm8776_write(wm, WM8776_REG_ALCCTRL2, alc2); + snd_wm8776_update_agc_ctl(wm); +} + +static void snd_wm8776_get_agc(struct snd_wm8776 *wm, u16 *mode, u16 *nothing) +{ + *mode = wm->agc_mode; +} + +/* mixer controls */ + +static const DECLARE_TLV_DB_SCALE(wm8776_hp_tlv, -7400, 100, 1); +static const DECLARE_TLV_DB_SCALE(wm8776_dac_tlv, -12750, 50, 1); +static const DECLARE_TLV_DB_SCALE(wm8776_adc_tlv, -10350, 50, 1); +static const DECLARE_TLV_DB_SCALE(wm8776_lct_tlv, -1600, 100, 0); +static const DECLARE_TLV_DB_SCALE(wm8776_maxgain_tlv, 0, 400, 0); +static const DECLARE_TLV_DB_SCALE(wm8776_ngth_tlv, -7800, 600, 0); +static const DECLARE_TLV_DB_SCALE(wm8776_maxatten_lim_tlv, -1200, 100, 0); +static const DECLARE_TLV_DB_SCALE(wm8776_maxatten_alc_tlv, -2100, 400, 0); + +static struct snd_wm8776_ctl snd_wm8776_default_ctl[WM8776_CTL_COUNT] = { + [WM8776_CTL_DAC_VOL] = { + .name = "Master Playback Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_dac_tlv, + .reg1 = WM8776_REG_DACLVOL, + .reg2 = WM8776_REG_DACRVOL, + .mask1 = WM8776_DACVOL_MASK, + .mask2 = WM8776_DACVOL_MASK, + .max = 0xff, + .flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE, + }, + [WM8776_CTL_DAC_SW] = { + .name = "Master Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_DACCTRL1, + .reg2 = WM8776_REG_DACCTRL1, + .mask1 = WM8776_DAC_PL_LL, + .mask2 = WM8776_DAC_PL_RR, + .flags = WM8776_FLAG_STEREO, + }, + [WM8776_CTL_DAC_ZC_SW] = { + .name = "Master Zero Cross Detect Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_DACCTRL1, + .mask1 = WM8776_DAC_DZCEN, + }, + [WM8776_CTL_HP_VOL] = { + .name = "Headphone Playback Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_hp_tlv, + .reg1 = WM8776_REG_HPLVOL, + .reg2 = WM8776_REG_HPRVOL, + .mask1 = WM8776_HPVOL_MASK, + .mask2 = WM8776_HPVOL_MASK, + .min = 0x2f, + .max = 0x7f, + .flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE, + }, + [WM8776_CTL_HP_SW] = { + .name = "Headphone Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_PWRDOWN, + .mask1 = WM8776_PWR_HPPD, + .flags = WM8776_FLAG_INVERT, + }, + [WM8776_CTL_HP_ZC_SW] = { + .name = "Headphone Zero Cross Detect Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_HPLVOL, + .reg2 = WM8776_REG_HPRVOL, + .mask1 = WM8776_VOL_HPZCEN, + .mask2 = WM8776_VOL_HPZCEN, + .flags = WM8776_FLAG_STEREO, + }, + [WM8776_CTL_AUX_SW] = { + .name = "AUX Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_OUTMUX, + .mask1 = WM8776_OUTMUX_AUX, + }, + [WM8776_CTL_BYPASS_SW] = { + .name = "Bypass Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_OUTMUX, + .mask1 = WM8776_OUTMUX_BYPASS, + }, + [WM8776_CTL_DAC_IZD_SW] = { + .name = "Infinite Zero Detect Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_DACCTRL1, + .mask1 = WM8776_DAC_IZD, + }, + [WM8776_CTL_PHASE_SW] = { + .name = "Phase Invert Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_PHASESWAP, + .reg2 = WM8776_REG_PHASESWAP, + .mask1 = WM8776_PHASE_INVERTL, + .mask2 = WM8776_PHASE_INVERTR, + .flags = WM8776_FLAG_STEREO, + }, + [WM8776_CTL_DEEMPH_SW] = { + .name = "Deemphasis Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_DACCTRL2, + .mask1 = WM8776_DAC2_DEEMPH, + }, + [WM8776_CTL_ADC_VOL] = { + .name = "Input Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_adc_tlv, + .reg1 = WM8776_REG_ADCLVOL, + .reg2 = WM8776_REG_ADCRVOL, + .mask1 = WM8776_ADC_GAIN_MASK, + .mask2 = WM8776_ADC_GAIN_MASK, + .max = 0xff, + .flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE, + }, + [WM8776_CTL_ADC_SW] = { + .name = "Input Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .reg2 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUTEL, + .mask2 = WM8776_ADC_MUTER, + .flags = WM8776_FLAG_STEREO | WM8776_FLAG_INVERT, + }, + [WM8776_CTL_INPUT1_SW] = { + .name = "AIN1 Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUX_AIN1, + }, + [WM8776_CTL_INPUT2_SW] = { + .name = "AIN2 Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUX_AIN2, + }, + [WM8776_CTL_INPUT3_SW] = { + .name = "AIN3 Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUX_AIN3, + }, + [WM8776_CTL_INPUT4_SW] = { + .name = "AIN4 Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUX_AIN4, + }, + [WM8776_CTL_INPUT5_SW] = { + .name = "AIN5 Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_ADCMUX, + .mask1 = WM8776_ADC_MUX_AIN5, + }, + [WM8776_CTL_AGC_SEL] = { + .name = "AGC Select Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "Off", "Limiter", "ALC Right", "ALC Left", + "ALC Stereo" }, + .max = 5, /* .enum_names item count */ + .set = snd_wm8776_set_agc, + .get = snd_wm8776_get_agc, + }, + [WM8776_CTL_LIM_THR] = { + .name = "Limiter Threshold Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_lct_tlv, + .reg1 = WM8776_REG_ALCCTRL1, + .mask1 = WM8776_ALC1_LCT_MASK, + .max = 15, + .flags = WM8776_FLAG_LIM, + }, + [WM8776_CTL_LIM_ATK] = { + .name = "Limiter Attack Time Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "0.25 ms", "0.5 ms", "1 ms", "2 ms", "4 ms", + "8 ms", "16 ms", "32 ms", "64 ms", "128 ms", "256 ms" }, + .max = 11, /* .enum_names item count */ + .reg1 = WM8776_REG_ALCCTRL3, + .mask1 = WM8776_ALC3_ATK_MASK, + .flags = WM8776_FLAG_LIM, + }, + [WM8776_CTL_LIM_DCY] = { + .name = "Limiter Decay Time Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "1.2 ms", "2.4 ms", "4.8 ms", "9.6 ms", + "19.2 ms", "38.4 ms", "76.8 ms", "154 ms", "307 ms", + "614 ms", "1.23 s" }, + .max = 11, /* .enum_names item count */ + .reg1 = WM8776_REG_ALCCTRL3, + .mask1 = WM8776_ALC3_DCY_MASK, + .flags = WM8776_FLAG_LIM, + }, + [WM8776_CTL_LIM_TRANWIN] = { + .name = "Limiter Transient Window Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "0 us", "62.5 us", "125 us", "250 us", "500 us", + "1 ms", "2 ms", "4 ms" }, + .max = 8, /* .enum_names item count */ + .reg1 = WM8776_REG_LIMITER, + .mask1 = WM8776_LIM_TRANWIN_MASK, + .flags = WM8776_FLAG_LIM, + }, + [WM8776_CTL_LIM_MAXATTN] = { + .name = "Limiter Maximum Attenuation Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_maxatten_lim_tlv, + .reg1 = WM8776_REG_LIMITER, + .mask1 = WM8776_LIM_MAXATTEN_MASK, + .min = 3, + .max = 12, + .flags = WM8776_FLAG_LIM | WM8776_FLAG_INVERT, + }, + [WM8776_CTL_ALC_TGT] = { + .name = "ALC Target Level Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_lct_tlv, + .reg1 = WM8776_REG_ALCCTRL1, + .mask1 = WM8776_ALC1_LCT_MASK, + .max = 15, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_ALC_ATK] = { + .name = "ALC Attack Time Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "8.40 ms", "16.8 ms", "33.6 ms", "67.2 ms", + "134 ms", "269 ms", "538 ms", "1.08 s", "2.15 s", + "4.3 s", "8.6 s" }, + .max = 11, /* .enum_names item count */ + .reg1 = WM8776_REG_ALCCTRL3, + .mask1 = WM8776_ALC3_ATK_MASK, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_ALC_DCY] = { + .name = "ALC Decay Time Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "33.5 ms", "67.0 ms", "134 ms", "268 ms", + "536 ms", "1.07 s", "2.14 s", "4.29 s", "8.58 s", + "17.2 s", "34.3 s" }, + .max = 11, /* .enum_names item count */ + .reg1 = WM8776_REG_ALCCTRL3, + .mask1 = WM8776_ALC3_DCY_MASK, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_ALC_MAXGAIN] = { + .name = "ALC Maximum Gain Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_maxgain_tlv, + .reg1 = WM8776_REG_ALCCTRL1, + .mask1 = WM8776_ALC1_MAXGAIN_MASK, + .min = 1, + .max = 7, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_ALC_MAXATTN] = { + .name = "ALC Maximum Attenuation Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_maxatten_alc_tlv, + .reg1 = WM8776_REG_LIMITER, + .mask1 = WM8776_LIM_MAXATTEN_MASK, + .min = 10, + .max = 15, + .flags = WM8776_FLAG_ALC | WM8776_FLAG_INVERT, + }, + [WM8776_CTL_ALC_HLD] = { + .name = "ALC Hold Time Capture Enum", + .type = SNDRV_CTL_ELEM_TYPE_ENUMERATED, + .enum_names = { "0 ms", "2.67 ms", "5.33 ms", "10.6 ms", + "21.3 ms", "42.7 ms", "85.3 ms", "171 ms", "341 ms", + "683 ms", "1.37 s", "2.73 s", "5.46 s", "10.9 s", + "21.8 s", "43.7 s" }, + .max = 16, /* .enum_names item count */ + .reg1 = WM8776_REG_ALCCTRL2, + .mask1 = WM8776_ALC2_HOLD_MASK, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_NGT_SW] = { + .name = "Noise Gate Capture Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8776_REG_NOISEGATE, + .mask1 = WM8776_NGAT_ENABLE, + .flags = WM8776_FLAG_ALC, + }, + [WM8776_CTL_NGT_THR] = { + .name = "Noise Gate Threshold Capture Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8776_ngth_tlv, + .reg1 = WM8776_REG_NOISEGATE, + .mask1 = WM8776_NGAT_THR_MASK, + .max = 7, + .flags = WM8776_FLAG_ALC, + }, +}; + +/* exported functions */ + +void snd_wm8776_init(struct snd_wm8776 *wm) +{ + int i; + static const u16 default_values[] = { + 0x000, 0x100, 0x000, + 0x000, 0x100, 0x000, + 0x000, 0x090, 0x000, 0x000, + 0x022, 0x022, 0x022, + 0x008, 0x0cf, 0x0cf, 0x07b, 0x000, + 0x032, 0x000, 0x0a6, 0x001, 0x001 + }; + + memcpy(wm->ctl, snd_wm8776_default_ctl, sizeof(wm->ctl)); + + snd_wm8776_write(wm, WM8776_REG_RESET, 0x00); /* reset */ + udelay(10); + /* load defaults */ + for (i = 0; i < ARRAY_SIZE(default_values); i++) + snd_wm8776_write(wm, i, default_values[i]); +} + +void snd_wm8776_resume(struct snd_wm8776 *wm) +{ + int i; + + for (i = 0; i < WM8776_REG_COUNT; i++) + snd_wm8776_write(wm, i, wm->regs[i]); +} + +void snd_wm8776_set_dac_if(struct snd_wm8776 *wm, u16 dac) +{ + snd_wm8776_write(wm, WM8776_REG_DACIFCTRL, dac); +} + +void snd_wm8776_set_adc_if(struct snd_wm8776 *wm, u16 adc) +{ + snd_wm8776_write(wm, WM8776_REG_ADCIFCTRL, adc); +} + +void snd_wm8776_set_master_mode(struct snd_wm8776 *wm, u16 mode) +{ + snd_wm8776_write(wm, WM8776_REG_MSTRCTRL, mode); +} + +void snd_wm8776_set_power(struct snd_wm8776 *wm, u16 power) +{ + snd_wm8776_write(wm, WM8776_REG_PWRDOWN, power); +} + +void snd_wm8776_volume_restore(struct snd_wm8776 *wm) +{ + u16 val = wm->regs[WM8776_REG_DACRVOL]; + /* restore volume after MCLK stopped */ + snd_wm8776_write(wm, WM8776_REG_DACRVOL, val | WM8776_VOL_UPDATE); +} + +/* mixer callbacks */ + +static int snd_wm8776_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = (wm->ctl[n].flags & WM8776_FLAG_STEREO) ? 2 : 1; + uinfo->value.integer.min = wm->ctl[n].min; + uinfo->value.integer.max = wm->ctl[n].max; + + return 0; +} + +static int snd_wm8776_enum_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + + return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max, + wm->ctl[n].enum_names); +} + +static int snd_wm8776_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + u16 val1, val2; + + if (wm->ctl[n].get) + wm->ctl[n].get(wm, &val1, &val2); + else { + val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1; + val1 >>= __ffs(wm->ctl[n].mask1); + if (wm->ctl[n].flags & WM8776_FLAG_STEREO) { + val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2; + val2 >>= __ffs(wm->ctl[n].mask2); + if (wm->ctl[n].flags & WM8776_FLAG_VOL_UPDATE) + val2 &= ~WM8776_VOL_UPDATE; + } + } + if (wm->ctl[n].flags & WM8776_FLAG_INVERT) { + val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min); + val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min); + } + ucontrol->value.integer.value[0] = val1; + if (wm->ctl[n].flags & WM8776_FLAG_STEREO) + ucontrol->value.integer.value[1] = val2; + + return 0; +} + +static int snd_wm8776_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + u16 val, regval1, regval2; + + /* this also works for enum because value is an union */ + regval1 = ucontrol->value.integer.value[0]; + regval2 = ucontrol->value.integer.value[1]; + if (wm->ctl[n].flags & WM8776_FLAG_INVERT) { + regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min); + regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min); + } + if (wm->ctl[n].set) + wm->ctl[n].set(wm, regval1, regval2); + else { + val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1; + val |= regval1 << __ffs(wm->ctl[n].mask1); + /* both stereo controls in one register */ + if (wm->ctl[n].flags & WM8776_FLAG_STEREO && + wm->ctl[n].reg1 == wm->ctl[n].reg2) { + val &= ~wm->ctl[n].mask2; + val |= regval2 << __ffs(wm->ctl[n].mask2); + } + snd_wm8776_write(wm, wm->ctl[n].reg1, val); + /* stereo controls in different registers */ + if (wm->ctl[n].flags & WM8776_FLAG_STEREO && + wm->ctl[n].reg1 != wm->ctl[n].reg2) { + val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2; + val |= regval2 << __ffs(wm->ctl[n].mask2); + if (wm->ctl[n].flags & WM8776_FLAG_VOL_UPDATE) + val |= WM8776_VOL_UPDATE; + snd_wm8776_write(wm, wm->ctl[n].reg2, val); + } + } + + return 0; +} + +static int snd_wm8776_add_control(struct snd_wm8776 *wm, int num) +{ + struct snd_kcontrol_new cont; + struct snd_kcontrol *ctl; + + memset(&cont, 0, sizeof(cont)); + cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + cont.private_value = num; + cont.name = wm->ctl[num].name; + cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + if (wm->ctl[num].flags & WM8776_FLAG_LIM || + wm->ctl[num].flags & WM8776_FLAG_ALC) + cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; + cont.tlv.p = NULL; + cont.get = snd_wm8776_ctl_get; + cont.put = snd_wm8776_ctl_put; + + switch (wm->ctl[num].type) { + case SNDRV_CTL_ELEM_TYPE_INTEGER: + cont.info = snd_wm8776_volume_info; + cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ; + cont.tlv.p = wm->ctl[num].tlv; + break; + case SNDRV_CTL_ELEM_TYPE_BOOLEAN: + wm->ctl[num].max = 1; + if (wm->ctl[num].flags & WM8776_FLAG_STEREO) + cont.info = snd_ctl_boolean_stereo_info; + else + cont.info = snd_ctl_boolean_mono_info; + break; + case SNDRV_CTL_ELEM_TYPE_ENUMERATED: + cont.info = snd_wm8776_enum_info; + break; + default: + return -EINVAL; + } + ctl = snd_ctl_new1(&cont, wm); + if (!ctl) + return -ENOMEM; + + return snd_ctl_add(wm->card, ctl); +} + +int snd_wm8776_build_controls(struct snd_wm8776 *wm) +{ + int err, i; + + for (i = 0; i < WM8776_CTL_COUNT; i++) + if (wm->ctl[i].name) { + err = snd_wm8776_add_control(wm, i); + if (err < 0) + return err; + } + + return 0; +} |