1 files changed, 332 insertions, 0 deletions
diff --git a/sound/pci/ice1712/wm8766.c b/sound/pci/ice1712/wm8766.c
new file mode 100644
index 000000000..fe3e243b3
--- /dev/null
+++ b/sound/pci/ice1712/wm8766.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *   ALSA driver for ICEnsemble VT17xx
+ *
+ *   Lowlevel functions for WM8766 codec
+ *
+ *	Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
+ */
+
+#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 const 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;
+}