// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * Universal routines for AK4531 codec */ #include <linux/delay.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/mutex.h> #include <linux/module.h> #include <sound/core.h> #include <sound/ak4531_codec.h> #include <sound/tlv.h> /* MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); MODULE_DESCRIPTION("Universal routines for AK4531 codec"); MODULE_LICENSE("GPL"); */ static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531); /* * */ #if 0 static void snd_ak4531_dump(struct snd_ak4531 *ak4531) { int idx; for (idx = 0; idx < 0x19; idx++) printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n", idx, ak4531->regs[idx]); } #endif /* * */ #define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ .info = snd_ak4531_info_single, \ .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \ .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) } #define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ .name = xname, .index = xindex, \ .info = snd_ak4531_info_single, \ .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \ .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \ .tlv = { .p = (xtlv) } } static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int mask = (kcontrol->private_value >> 24) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 16) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; int val; mutex_lock(&ak4531->reg_mutex); val = (ak4531->regs[reg] >> shift) & mask; mutex_unlock(&ak4531->reg_mutex); if (invert) { val = mask - val; } ucontrol->value.integer.value[0] = val; return 0; } static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 16) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; int change; int val; val = ucontrol->value.integer.value[0] & mask; if (invert) { val = mask - val; } val <<= shift; mutex_lock(&ak4531->reg_mutex); val = (ak4531->regs[reg] & ~(mask << shift)) | val; change = val != ak4531->regs[reg]; ak4531->write(ak4531, reg, ak4531->regs[reg] = val); mutex_unlock(&ak4531->reg_mutex); return change; } #define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ .info = snd_ak4531_info_double, \ .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \ .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) } #define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ .name = xname, .index = xindex, \ .info = snd_ak4531_info_double, \ .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \ .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \ .tlv = { .p = (xtlv) } } static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int mask = (kcontrol->private_value >> 24) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int left_reg = kcontrol->private_value & 0xff; int right_reg = (kcontrol->private_value >> 8) & 0xff; int left_shift = (kcontrol->private_value >> 16) & 0x07; int right_shift = (kcontrol->private_value >> 19) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; int left, right; mutex_lock(&ak4531->reg_mutex); left = (ak4531->regs[left_reg] >> left_shift) & mask; right = (ak4531->regs[right_reg] >> right_shift) & mask; mutex_unlock(&ak4531->reg_mutex); if (invert) { left = mask - left; right = mask - right; } ucontrol->value.integer.value[0] = left; ucontrol->value.integer.value[1] = right; return 0; } static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int left_reg = kcontrol->private_value & 0xff; int right_reg = (kcontrol->private_value >> 8) & 0xff; int left_shift = (kcontrol->private_value >> 16) & 0x07; int right_shift = (kcontrol->private_value >> 19) & 0x07; int mask = (kcontrol->private_value >> 24) & 0xff; int invert = (kcontrol->private_value >> 22) & 1; int change; int left, right; left = ucontrol->value.integer.value[0] & mask; right = ucontrol->value.integer.value[1] & mask; if (invert) { left = mask - left; right = mask - right; } left <<= left_shift; right <<= right_shift; mutex_lock(&ak4531->reg_mutex); if (left_reg == right_reg) { left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right; change = left != ak4531->regs[left_reg]; ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left); } else { left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left; right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right; change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg]; ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left); ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right); } mutex_unlock(&ak4531->reg_mutex); return change; } #define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ .info = snd_ak4531_info_input_sw, \ .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \ .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) } static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; uinfo->count = 4; uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; return 0; } static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int reg1 = kcontrol->private_value & 0xff; int reg2 = (kcontrol->private_value >> 8) & 0xff; int left_shift = (kcontrol->private_value >> 16) & 0x0f; int right_shift = (kcontrol->private_value >> 24) & 0x0f; mutex_lock(&ak4531->reg_mutex); ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1; ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1; ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1; ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1; mutex_unlock(&ak4531->reg_mutex); return 0; } static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol); int reg1 = kcontrol->private_value & 0xff; int reg2 = (kcontrol->private_value >> 8) & 0xff; int left_shift = (kcontrol->private_value >> 16) & 0x0f; int right_shift = (kcontrol->private_value >> 24) & 0x0f; int change; int val1, val2; mutex_lock(&ak4531->reg_mutex); val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift)); val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift)); val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift; val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift; val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift; val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift; change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2]; ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1); ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2); mutex_unlock(&ak4531->reg_mutex); return change; } static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0); static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0); static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0); static const struct snd_kcontrol_new snd_ak4531_controls[] = { AK4531_DOUBLE_TLV("Master Playback Switch", 0, AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1, db_scale_master), AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1), AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1, db_scale_mono), AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1), AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1), AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1, db_scale_input), AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0), AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0), AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1), AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1, db_scale_input), AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0), AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5), AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1), AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1, db_scale_input), AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0), AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1), AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1), AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1, db_scale_input), AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0), AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3), AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1), AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1, db_scale_input), AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0), AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3), AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1), AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input), AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0), AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0), AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1), AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input), AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0), AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0), AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input), AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1), AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0), AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0), AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0), AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0), AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0), AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0), AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0) }; static int snd_ak4531_free(struct snd_ak4531 *ak4531) { if (ak4531) { if (ak4531->private_free) ak4531->private_free(ak4531); kfree(ak4531); } return 0; } static int snd_ak4531_dev_free(struct snd_device *device) { struct snd_ak4531 *ak4531 = device->device_data; return snd_ak4531_free(ak4531); } static const u8 snd_ak4531_initial_map[0x19 + 1] = { 0x9f, /* 00: Master Volume Lch */ 0x9f, /* 01: Master Volume Rch */ 0x9f, /* 02: Voice Volume Lch */ 0x9f, /* 03: Voice Volume Rch */ 0x9f, /* 04: FM Volume Lch */ 0x9f, /* 05: FM Volume Rch */ 0x9f, /* 06: CD Audio Volume Lch */ 0x9f, /* 07: CD Audio Volume Rch */ 0x9f, /* 08: Line Volume Lch */ 0x9f, /* 09: Line Volume Rch */ 0x9f, /* 0a: Aux Volume Lch */ 0x9f, /* 0b: Aux Volume Rch */ 0x9f, /* 0c: Mono1 Volume */ 0x9f, /* 0d: Mono2 Volume */ 0x9f, /* 0e: Mic Volume */ 0x87, /* 0f: Mono-out Volume */ 0x00, /* 10: Output Mixer SW1 */ 0x00, /* 11: Output Mixer SW2 */ 0x00, /* 12: Lch Input Mixer SW1 */ 0x00, /* 13: Rch Input Mixer SW1 */ 0x00, /* 14: Lch Input Mixer SW2 */ 0x00, /* 15: Rch Input Mixer SW2 */ 0x00, /* 16: Reset & Power Down */ 0x00, /* 17: Clock Select */ 0x00, /* 18: AD Input Select */ 0x01 /* 19: Mic Amp Setup */ }; int snd_ak4531_mixer(struct snd_card *card, struct snd_ak4531 *_ak4531, struct snd_ak4531 **rak4531) { unsigned int idx; int err; struct snd_ak4531 *ak4531; static const struct snd_device_ops ops = { .dev_free = snd_ak4531_dev_free, }; if (snd_BUG_ON(!card || !_ak4531)) return -EINVAL; if (rak4531) *rak4531 = NULL; ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL); if (ak4531 == NULL) return -ENOMEM; *ak4531 = *_ak4531; mutex_init(&ak4531->reg_mutex); err = snd_component_add(card, "AK4531"); if (err < 0) { snd_ak4531_free(ak4531); return err; } strcpy(card->mixername, "Asahi Kasei AK4531"); ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */ udelay(100); ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */ for (idx = 0; idx <= 0x19; idx++) { if (idx == AK4531_RESET || idx == AK4531_CLOCK) continue; ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */ } for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) { err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531)); if (err < 0) { snd_ak4531_free(ak4531); return err; } } snd_ak4531_proc_init(card, ak4531); err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops); if (err < 0) { snd_ak4531_free(ak4531); return err; } #if 0 snd_ak4531_dump(ak4531); #endif if (rak4531) *rak4531 = ak4531; return 0; } /* * power management */ #ifdef CONFIG_PM void snd_ak4531_suspend(struct snd_ak4531 *ak4531) { /* mute */ ak4531->write(ak4531, AK4531_LMASTER, 0x9f); ak4531->write(ak4531, AK4531_RMASTER, 0x9f); /* powerdown */ ak4531->write(ak4531, AK4531_RESET, 0x01); } void snd_ak4531_resume(struct snd_ak4531 *ak4531) { int idx; /* initialize */ ak4531->write(ak4531, AK4531_RESET, 0x03); udelay(100); ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* restore mixer registers */ for (idx = 0; idx <= 0x19; idx++) { if (idx == AK4531_RESET || idx == AK4531_CLOCK) continue; ak4531->write(ak4531, idx, ak4531->regs[idx]); } } #endif /* * /proc interface */ static void snd_ak4531_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_ak4531 *ak4531 = entry->private_data; snd_iprintf(buffer, "Asahi Kasei AK4531\n\n"); snd_iprintf(buffer, "Recording source : %s\n" "MIC gain : %s\n", ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer", ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB"); } static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531) { snd_card_ro_proc_new(card, "ak4531", ak4531, snd_ak4531_proc_read); }