diff options
Diffstat (limited to 'sound/pci/ice1712/wm8766.c')
| -rw-r--r-- | sound/pci/ice1712/wm8766.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/sound/pci/ice1712/wm8766.c b/sound/pci/ice1712/wm8766.c new file mode 100644 index 000000000..27c03e40c --- /dev/null +++ b/sound/pci/ice1712/wm8766.c @@ -0,0 +1,346 @@ +/* + * ALSA driver for ICEnsemble VT17xx + * + * Lowlevel functions for WM8766 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 "wm8766.h" + +/* low-level access */ + +static void snd_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data) +{ + if (addr < WM8766_REG_COUNT) + wm->regs[addr] = data; + wm->ops.write(wm, addr, data); +} + +/* mixer controls */ + +static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1); + +static struct snd_wm8766_ctl snd_wm8766_default_ctl[WM8766_CTL_COUNT] = { + [WM8766_CTL_CH1_VOL] = { + .name = "Channel 1 Playback Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8766_tlv, + .reg1 = WM8766_REG_DACL1, + .reg2 = WM8766_REG_DACR1, + .mask1 = WM8766_VOL_MASK, + .mask2 = WM8766_VOL_MASK, + .max = 0xff, + .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE, + }, + [WM8766_CTL_CH2_VOL] = { + .name = "Channel 2 Playback Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8766_tlv, + .reg1 = WM8766_REG_DACL2, + .reg2 = WM8766_REG_DACR2, + .mask1 = WM8766_VOL_MASK, + .mask2 = WM8766_VOL_MASK, + .max = 0xff, + .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE, + }, + [WM8766_CTL_CH3_VOL] = { + .name = "Channel 3 Playback Volume", + .type = SNDRV_CTL_ELEM_TYPE_INTEGER, + .tlv = wm8766_tlv, + .reg1 = WM8766_REG_DACL3, + .reg2 = WM8766_REG_DACR3, + .mask1 = WM8766_VOL_MASK, + .mask2 = WM8766_VOL_MASK, + .max = 0xff, + .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE, + }, + [WM8766_CTL_CH1_SW] = { + .name = "Channel 1 Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_MUTE1, + .flags = WM8766_FLAG_INVERT, + }, + [WM8766_CTL_CH2_SW] = { + .name = "Channel 2 Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_MUTE2, + .flags = WM8766_FLAG_INVERT, + }, + [WM8766_CTL_CH3_SW] = { + .name = "Channel 3 Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_MUTE3, + .flags = WM8766_FLAG_INVERT, + }, + [WM8766_CTL_PHASE1_SW] = { + .name = "Channel 1 Phase Invert Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_IFCTRL, + .mask1 = WM8766_PHASE_INVERT1, + }, + [WM8766_CTL_PHASE2_SW] = { + .name = "Channel 2 Phase Invert Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_IFCTRL, + .mask1 = WM8766_PHASE_INVERT2, + }, + [WM8766_CTL_PHASE3_SW] = { + .name = "Channel 3 Phase Invert Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_IFCTRL, + .mask1 = WM8766_PHASE_INVERT3, + }, + [WM8766_CTL_DEEMPH1_SW] = { + .name = "Channel 1 Deemphasis Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_DEEMP1, + }, + [WM8766_CTL_DEEMPH2_SW] = { + .name = "Channel 2 Deemphasis Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_DEEMP2, + }, + [WM8766_CTL_DEEMPH3_SW] = { + .name = "Channel 3 Deemphasis Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_DEEMP3, + }, + [WM8766_CTL_IZD_SW] = { + .name = "Infinite Zero Detect Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL1, + .mask1 = WM8766_DAC_IZD, + }, + [WM8766_CTL_ZC_SW] = { + .name = "Zero Cross Detect Playback Switch", + .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN, + .reg1 = WM8766_REG_DACCTRL2, + .mask1 = WM8766_DAC2_ZCD, + .flags = WM8766_FLAG_INVERT, + }, +}; + +/* exported functions */ + +void snd_wm8766_init(struct snd_wm8766 *wm) +{ + int i; + static const u16 default_values[] = { + 0x000, 0x100, + 0x120, 0x000, + 0x000, 0x100, 0x000, 0x100, 0x000, + 0x000, 0x080, + }; + + memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl)); + + snd_wm8766_write(wm, WM8766_REG_RESET, 0x00); /* reset */ + udelay(10); + /* load defaults */ + for (i = 0; i < ARRAY_SIZE(default_values); i++) + snd_wm8766_write(wm, i, default_values[i]); +} + +void snd_wm8766_resume(struct snd_wm8766 *wm) +{ + int i; + + for (i = 0; i < WM8766_REG_COUNT; i++) + snd_wm8766_write(wm, i, wm->regs[i]); +} + +void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac) +{ + u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK; + + dac &= WM8766_IF_MASK; + snd_wm8766_write(wm, WM8766_REG_IFCTRL, val | dac); +} + +void snd_wm8766_volume_restore(struct snd_wm8766 *wm) +{ + u16 val = wm->regs[WM8766_REG_DACR1]; + /* restore volume after MCLK stopped */ + snd_wm8766_write(wm, WM8766_REG_DACR1, val | WM8766_VOL_UPDATE); +} + +/* mixer callbacks */ + +static int snd_wm8766_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = (wm->ctl[n].flags & WM8766_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_wm8766_enum_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_wm8766 *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_wm8766_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_wm8766 *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 & WM8766_FLAG_STEREO) { + val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2; + val2 >>= __ffs(wm->ctl[n].mask2); + if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE) + val2 &= ~WM8766_VOL_UPDATE; + } + } + if (wm->ctl[n].flags & WM8766_FLAG_INVERT) { + val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min); + if (wm->ctl[n].flags & WM8766_FLAG_STEREO) + val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min); + } + ucontrol->value.integer.value[0] = val1; + if (wm->ctl[n].flags & WM8766_FLAG_STEREO) + ucontrol->value.integer.value[1] = val2; + + return 0; +} + +static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol); + int n = kcontrol->private_value; + u16 val, regval1, regval2; + + /* this also works for enum because value is a union */ + regval1 = ucontrol->value.integer.value[0]; + regval2 = ucontrol->value.integer.value[1]; + if (wm->ctl[n].flags & WM8766_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 & WM8766_FLAG_STEREO && + wm->ctl[n].reg1 == wm->ctl[n].reg2) { + val &= ~wm->ctl[n].mask2; + val |= regval2 << __ffs(wm->ctl[n].mask2); + } + snd_wm8766_write(wm, wm->ctl[n].reg1, val); + /* stereo controls in different registers */ + if (wm->ctl[n].flags & WM8766_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 & WM8766_FLAG_VOL_UPDATE) + val |= WM8766_VOL_UPDATE; + snd_wm8766_write(wm, wm->ctl[n].reg2, val); + } + } + + return 0; +} + +static int snd_wm8766_add_control(struct snd_wm8766 *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 & WM8766_FLAG_LIM || + wm->ctl[num].flags & WM8766_FLAG_ALC) + cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; + cont.tlv.p = NULL; + cont.get = snd_wm8766_ctl_get; + cont.put = snd_wm8766_ctl_put; + + switch (wm->ctl[num].type) { + case SNDRV_CTL_ELEM_TYPE_INTEGER: + cont.info = snd_wm8766_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 & WM8766_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_wm8766_enum_info; + break; + default: + return -EINVAL; + } + ctl = snd_ctl_new1(&cont, wm); + if (!ctl) + return -ENOMEM; + wm->ctl[num].kctl = ctl; + + return snd_ctl_add(wm->card, ctl); +} + +int snd_wm8766_build_controls(struct snd_wm8766 *wm) +{ + int err, i; + + for (i = 0; i < WM8766_CTL_COUNT; i++) + if (wm->ctl[i].name) { + err = snd_wm8766_add_control(wm, i); + if (err < 0) + return err; + } + + return 0; +} |