diff options
Diffstat (limited to 'sound/soc/codecs/peb2466.c')
| -rw-r--r-- | sound/soc/codecs/peb2466.c | 2071 |
1 files changed, 2071 insertions, 0 deletions
diff --git a/sound/soc/codecs/peb2466.c b/sound/soc/codecs/peb2466.c new file mode 100644 index 000000000000..5dec69be0acb --- /dev/null +++ b/sound/soc/codecs/peb2466.c @@ -0,0 +1,2071 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// peb2466.c -- Infineon PEB2466 ALSA SoC driver +// +// Copyright 2023 CS GROUP France +// +// Author: Herve Codina <herve.codina@bootlin.com> + +#include <asm/unaligned.h> +#include <linux/clk.h> +#include <linux/firmware.h> +#include <linux/gpio/consumer.h> +#include <linux/gpio/driver.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/spi/spi.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#define PEB2466_NB_CHANNEL 4 + +struct peb2466_lookup { + u8 (*table)[4]; + unsigned int count; +}; + +#define PEB2466_TLV_SIZE (sizeof((unsigned int []){TLV_DB_SCALE_ITEM(0, 0, 0)}) / \ + sizeof(unsigned int)) + +struct peb2466_lkup_ctrl { + int reg; + unsigned int index; + const struct peb2466_lookup *lookup; + unsigned int tlv_array[PEB2466_TLV_SIZE]; +}; + +struct peb2466 { + struct spi_device *spi; + struct clk *mclk; + struct gpio_desc *reset_gpio; + u8 spi_tx_buf[2 + 8]; /* Cannot use stack area for SPI (dma-safe memory) */ + u8 spi_rx_buf[2 + 8]; /* Cannot use stack area for SPI (dma-safe memory) */ + struct regmap *regmap; + struct { + struct peb2466_lookup ax_lookup; + struct peb2466_lookup ar_lookup; + struct peb2466_lkup_ctrl ax_lkup_ctrl; + struct peb2466_lkup_ctrl ar_lkup_ctrl; + unsigned int tg1_freq_item; + unsigned int tg2_freq_item; + } ch[PEB2466_NB_CHANNEL]; + int max_chan_playback; + int max_chan_capture; + struct { + struct gpio_chip gpio_chip; + struct mutex lock; + struct { + unsigned int xr0; + unsigned int xr1; + unsigned int xr2; + unsigned int xr3; + } cache; + } gpio; +}; + +#define PEB2466_CMD_R (1 << 5) +#define PEB2466_CMD_W (0 << 5) + +#define PEB2466_CMD_MASK 0x18 +#define PEB2466_CMD_XOP 0x18 /* XOP is 0bxxx11xxx */ +#define PEB2466_CMD_SOP 0x10 /* SOP is 0bxxx10xxx */ +#define PEB2466_CMD_COP 0x00 /* COP is 0bxxx0xxxx, handle 0bxxx00xxx */ +#define PEB2466_CMD_COP1 0x08 /* COP is 0bxxx0xxxx, handle 0bxxx01xxx */ + +#define PEB2466_MAKE_XOP(_lsel) (PEB2466_CMD_XOP | (_lsel)) +#define PEB2466_MAKE_SOP(_ad, _lsel) (PEB2466_CMD_SOP | ((_ad) << 6) | (_lsel)) +#define PEB2466_MAKE_COP(_ad, _code) (PEB2466_CMD_COP | ((_ad) << 6) | (_code)) + +#define PEB2466_CR0(_ch) PEB2466_MAKE_SOP(_ch, 0x0) +#define PEB2466_CR0_TH (1 << 7) +#define PEB2466_CR0_IMR1 (1 << 6) +#define PEB2466_CR0_FRX (1 << 5) +#define PEB2466_CR0_FRR (1 << 4) +#define PEB2466_CR0_AX (1 << 3) +#define PEB2466_CR0_AR (1 << 2) +#define PEB2466_CR0_THSEL_MASK (0x3 << 0) +#define PEB2466_CR0_THSEL(_set) ((_set) << 0) + +#define PEB2466_CR1(_ch) PEB2466_MAKE_SOP(_ch, 0x1) +#define PEB2466_CR1_ETG2 (1 << 7) +#define PEB2466_CR1_ETG1 (1 << 6) +#define PEB2466_CR1_PTG2 (1 << 5) +#define PEB2466_CR1_PTG1 (1 << 4) +#define PEB2466_CR1_LAW_MASK (1 << 3) +#define PEB2466_CR1_LAW_ALAW (0 << 3) +#define PEB2466_CR1_LAW_MULAW (1 << 3) +#define PEB2466_CR1_PU (1 << 0) + +#define PEB2466_CR2(_ch) PEB2466_MAKE_SOP(_ch, 0x2) +#define PEB2466_CR3(_ch) PEB2466_MAKE_SOP(_ch, 0x3) +#define PEB2466_CR4(_ch) PEB2466_MAKE_SOP(_ch, 0x4) +#define PEB2466_CR5(_ch) PEB2466_MAKE_SOP(_ch, 0x5) + +#define PEB2466_XR0 PEB2466_MAKE_XOP(0x0) +#define PEB2466_XR1 PEB2466_MAKE_XOP(0x1) +#define PEB2466_XR2 PEB2466_MAKE_XOP(0x2) +#define PEB2466_XR3 PEB2466_MAKE_XOP(0x3) +#define PEB2466_XR4 PEB2466_MAKE_XOP(0x4) +#define PEB2466_XR5 PEB2466_MAKE_XOP(0x5) +#define PEB2466_XR5_MCLK_1536 (0x0 << 6) +#define PEB2466_XR5_MCLK_2048 (0x1 << 6) +#define PEB2466_XR5_MCLK_4096 (0x2 << 6) +#define PEB2466_XR5_MCLK_8192 (0x3 << 6) + +#define PEB2466_XR6 PEB2466_MAKE_XOP(0x6) +#define PEB2466_XR6_PCM_OFFSET(_off) ((_off) << 0) + +#define PEB2466_XR7 PEB2466_MAKE_XOP(0x7) + +#define PEB2466_TH_FILTER_P1(_ch) PEB2466_MAKE_COP(_ch, 0x0) +#define PEB2466_TH_FILTER_P2(_ch) PEB2466_MAKE_COP(_ch, 0x1) +#define PEB2466_TH_FILTER_P3(_ch) PEB2466_MAKE_COP(_ch, 0x2) +#define PEB2466_IMR1_FILTER_P1(_ch) PEB2466_MAKE_COP(_ch, 0x4) +#define PEB2466_IMR1_FILTER_P2(_ch) PEB2466_MAKE_COP(_ch, 0x5) +#define PEB2466_FRX_FILTER(_ch) PEB2466_MAKE_COP(_ch, 0x6) +#define PEB2466_FRR_FILTER(_ch) PEB2466_MAKE_COP(_ch, 0x7) +#define PEB2466_AX_FILTER(_ch) PEB2466_MAKE_COP(_ch, 0x8) +#define PEB2466_AR_FILTER(_ch) PEB2466_MAKE_COP(_ch, 0x9) +#define PEB2466_TG1(_ch) PEB2466_MAKE_COP(_ch, 0xc) +#define PEB2466_TG2(_ch) PEB2466_MAKE_COP(_ch, 0xd) + +static int peb2466_write_byte(struct peb2466 *peb2466, u8 cmd, u8 val) +{ + struct spi_transfer xfer = { + .tx_buf = &peb2466->spi_tx_buf, + .len = 2, + }; + + peb2466->spi_tx_buf[0] = cmd | PEB2466_CMD_W; + peb2466->spi_tx_buf[1] = val; + + dev_dbg(&peb2466->spi->dev, "write byte (cmd %02x) %02x\n", + peb2466->spi_tx_buf[0], peb2466->spi_tx_buf[1]); + + return spi_sync_transfer(peb2466->spi, &xfer, 1); +} + +static int peb2466_read_byte(struct peb2466 *peb2466, u8 cmd, u8 *val) +{ + struct spi_transfer xfer = { + .tx_buf = &peb2466->spi_tx_buf, + .rx_buf = &peb2466->spi_rx_buf, + .len = 3, + }; + int ret; + + peb2466->spi_tx_buf[0] = cmd | PEB2466_CMD_R; + + ret = spi_sync_transfer(peb2466->spi, &xfer, 1); + if (ret) + return ret; + + if (peb2466->spi_rx_buf[1] != 0x81) { + dev_err(&peb2466->spi->dev, + "spi xfer rd (cmd %02x) invalid ident byte (0x%02x)\n", + peb2466->spi_tx_buf[0], peb2466->spi_rx_buf[1]); + return -EILSEQ; + } + + *val = peb2466->spi_rx_buf[2]; + + dev_dbg(&peb2466->spi->dev, "read byte (cmd %02x) %02x\n", + peb2466->spi_tx_buf[0], *val); + + return 0; +} + +static int peb2466_write_buf(struct peb2466 *peb2466, u8 cmd, const u8 *buf, unsigned int len) +{ + struct spi_transfer xfer = { + .tx_buf = &peb2466->spi_tx_buf, + .len = len + 1, + }; + + if (len > 8) + return -EINVAL; + + peb2466->spi_tx_buf[0] = cmd | PEB2466_CMD_W; + memcpy(&peb2466->spi_tx_buf[1], buf, len); + + dev_dbg(&peb2466->spi->dev, "write buf (cmd %02x, %u) %*ph\n", + peb2466->spi_tx_buf[0], len, len, &peb2466->spi_tx_buf[1]); + + return spi_sync_transfer(peb2466->spi, &xfer, 1); +} + +static int peb2466_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct peb2466 *peb2466 = context; + int ret; + + /* + * Only XOP and SOP commands can be handled as registers. + * COP commands are handled using direct peb2466_write_buf() calls. + */ + switch (reg & PEB2466_CMD_MASK) { + case PEB2466_CMD_XOP: + case PEB2466_CMD_SOP: + ret = peb2466_write_byte(peb2466, reg, val); + break; + default: + dev_err(&peb2466->spi->dev, "Not a XOP or SOP command\n"); + ret = -EINVAL; + break; + } + return ret; +} + +static int peb2466_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct peb2466 *peb2466 = context; + int ret; + u8 tmp; + + /* Only XOP and SOP commands can be handled as registers */ + switch (reg & PEB2466_CMD_MASK) { + case PEB2466_CMD_XOP: + case PEB2466_CMD_SOP: + ret = peb2466_read_byte(peb2466, reg, &tmp); + *val = tmp; + break; + default: + dev_err(&peb2466->spi->dev, "Not a XOP or SOP command\n"); + ret = -EINVAL; + break; + } + return ret; +} + +static const struct regmap_config peb2466_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xFF, + .reg_write = peb2466_reg_write, + .reg_read = peb2466_reg_read, + .cache_type = REGCACHE_NONE, +}; + +static int peb2466_lkup_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct peb2466_lkup_ctrl *lkup_ctrl = + (struct peb2466_lkup_ctrl *)kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = lkup_ctrl->lookup->count - 1; + return 0; +} + +static int peb2466_lkup_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct peb2466_lkup_ctrl *lkup_ctrl = + (struct peb2466_lkup_ctrl *)kcontrol->private_value; + + ucontrol->value.integer.value[0] = lkup_ctrl->index; + return 0; +} + +static int peb2466_lkup_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct peb2466_lkup_ctrl *lkup_ctrl = + (struct peb2466_lkup_ctrl *)kcontrol->private_value; + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + unsigned int index; + int ret; + + index = ucontrol->value.integer.value[0]; + if (index >= lkup_ctrl->lookup->count) + return -EINVAL; + + if (index == lkup_ctrl->index) + return 0; + + ret = peb2466_write_buf(peb2466, lkup_ctrl->reg, + lkup_ctrl->lookup->table[index], 4); + if (ret) + return ret; + + lkup_ctrl->index = index; + return 1; /* The value changed */ +} + +static int peb2466_add_lkup_ctrl(struct snd_soc_component *component, + struct peb2466_lkup_ctrl *lkup_ctrl, + const char *name, int min_val, int step) +{ + DECLARE_TLV_DB_SCALE(tlv_array, min_val, step, 0); + struct snd_kcontrol_new control = {0}; + + BUILD_BUG_ON(sizeof(lkup_ctrl->tlv_array) < sizeof(tlv_array)); + memcpy(lkup_ctrl->tlv_array, tlv_array, sizeof(tlv_array)); + + control.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + control.name = name; + control.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_READWRITE; + control.tlv.p = lkup_ctrl->tlv_array; + control.info = peb2466_lkup_ctrl_info; + control.get = peb2466_lkup_ctrl_get; + control.put = peb2466_lkup_ctrl_put; + control.private_value = (unsigned long)lkup_ctrl; + + return snd_soc_add_component_controls(component, &control, 1); +} + +enum peb2466_tone_freq { + PEB2466_TONE_697HZ, + PEB2466_TONE_800HZ, + PEB2466_TONE_950HZ, + PEB2466_TONE_1000HZ, + PEB2466_TONE_1008HZ, + PEB2466_TONE_2000HZ, +}; + +static const u8 peb2466_tone_lookup[][4] = { + [PEB2466_TONE_697HZ] = {0x0a, 0x33, 0x5a, 0x2c}, + [PEB2466_TONE_800HZ] = {0x12, 0xD6, 0x5a, 0xc0}, + [PEB2466_TONE_950HZ] = {0x1c, 0xf0, 0x5c, 0xc0}, + [PEB2466_TONE_1000HZ] = {0}, /* lookup value not used for 1000Hz */ + [PEB2466_TONE_1008HZ] = {0x1a, 0xae, 0x57, 0x70}, + [PEB2466_TONE_2000HZ] = {0x00, 0x80, 0x50, 0x09}, +}; + +static const char * const peb2466_tone_freq_txt[] = { + [PEB2466_TONE_697HZ] = "697Hz", + [PEB2466_TONE_800HZ] = "800Hz", + [PEB2466_TONE_950HZ] = "950Hz", + [PEB2466_TONE_1000HZ] = "1000Hz", + [PEB2466_TONE_1008HZ] = "1008Hz", + [PEB2466_TONE_2000HZ] = "2000Hz" +}; + +static const struct soc_enum peb2466_tg_freq[][2] = { + [0] = { + SOC_ENUM_SINGLE(PEB2466_TG1(0), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt), + SOC_ENUM_SINGLE(PEB2466_TG2(0), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt) + }, + [1] = { + SOC_ENUM_SINGLE(PEB2466_TG1(1), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt), + SOC_ENUM_SINGLE(PEB2466_TG2(1), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt) + }, + [2] = { + SOC_ENUM_SINGLE(PEB2466_TG1(2), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt), + SOC_ENUM_SINGLE(PEB2466_TG2(2), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt) + }, + [3] = { + SOC_ENUM_SINGLE(PEB2466_TG1(3), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt), + SOC_ENUM_SINGLE(PEB2466_TG2(3), 0, ARRAY_SIZE(peb2466_tone_freq_txt), + peb2466_tone_freq_txt) + } +}; + +static int peb2466_tg_freq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + + switch (e->reg) { + case PEB2466_TG1(0): + ucontrol->value.enumerated.item[0] = peb2466->ch[0].tg1_freq_item; + break; + case PEB2466_TG2(0): + ucontrol->value.enumerated.item[0] = peb2466->ch[0].tg2_freq_item; + break; + case PEB2466_TG1(1): + ucontrol->value.enumerated.item[0] = peb2466->ch[1].tg1_freq_item; + break; + case PEB2466_TG2(1): + ucontrol->value.enumerated.item[0] = peb2466->ch[1].tg2_freq_item; + break; + case PEB2466_TG1(2): + ucontrol->value.enumerated.item[0] = peb2466->ch[2].tg1_freq_item; + break; + case PEB2466_TG2(2): + ucontrol->value.enumerated.item[0] = peb2466->ch[2].tg2_freq_item; + break; + case PEB2466_TG1(3): + ucontrol->value.enumerated.item[0] = peb2466->ch[3].tg1_freq_item; + break; + case PEB2466_TG2(3): + ucontrol->value.enumerated.item[0] = peb2466->ch[3].tg2_freq_item; + break; + default: + return -EINVAL; + } + return 0; +} + +static int peb2466_tg_freq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int *tg_freq_item; + u8 cr1_reg, cr1_mask; + unsigned int index; + int ret; + + index = ucontrol->value.enumerated.item[0]; + + if (index >= ARRAY_SIZE(peb2466_tone_lookup)) + return -EINVAL; + + switch (e->reg) { + case PEB2466_TG1(0): + tg_freq_item = &peb2466->ch[0].tg1_freq_item; + cr1_reg = PEB2466_CR1(0); + cr1_mask = PEB2466_CR1_PTG1; + break; + case PEB2466_TG2(0): + tg_freq_item = &peb2466->ch[0].tg2_freq_item; + cr1_reg = PEB2466_CR1(0); + cr1_mask = PEB2466_CR1_PTG2; + break; + case PEB2466_TG1(1): + tg_freq_item = &peb2466->ch[1].tg1_freq_item; + cr1_reg = PEB2466_CR1(1); + cr1_mask = PEB2466_CR1_PTG1; + break; + case PEB2466_TG2(1): + tg_freq_item = &peb2466->ch[1].tg2_freq_item; + cr1_reg = PEB2466_CR1(1); + cr1_mask = PEB2466_CR1_PTG2; + break; + case PEB2466_TG1(2): + tg_freq_item = &peb2466->ch[2].tg1_freq_item; + cr1_reg = PEB2466_CR1(2); + cr1_mask = PEB2466_CR1_PTG1; + break; + case PEB2466_TG2(2): + tg_freq_item = &peb2466->ch[2].tg2_freq_item; + cr1_reg = PEB2466_CR1(2); + cr1_mask = PEB2466_CR1_PTG2; + break; + case PEB2466_TG1(3): + tg_freq_item = &peb2466->ch[3].tg1_freq_item; + cr1_reg = PEB2466_CR1(3); + cr1_mask = PEB2466_CR1_PTG1; + break; + case PEB2466_TG2(3): + tg_freq_item = &peb2466->ch[3].tg2_freq_item; + cr1_reg = PEB2466_CR1(3); + cr1_mask = PEB2466_CR1_PTG2; + break; + default: + return -EINVAL; + } + + if (index == *tg_freq_item) + return 0; + + if (index == PEB2466_TONE_1000HZ) { + ret = regmap_update_bits(peb2466->regmap, cr1_reg, cr1_mask, 0); + if (ret) + return ret; + } else { + ret = peb2466_write_buf(peb2466, e->reg, peb2466_tone_lookup[index], 4); + if (ret) + return ret; + ret = regmap_update_bits(peb2466->regmap, cr1_reg, cr1_mask, cr1_mask); + if (ret) + return ret; + } + + *tg_freq_item = index; + return 1; /* The value changed */ +} + +static const struct snd_kcontrol_new peb2466_ch0_out_mix_controls[] = { + SOC_DAPM_SINGLE("TG1 Switch", PEB2466_CR1(0), 6, 1, 0), + SOC_DAPM_SINGLE("TG2 Switch", PEB2466_CR1(0), 7, 1, 0), + SOC_DAPM_SINGLE("Voice Switch", PEB2466_CR2(0), 0, 1, 0) +}; + +static const struct snd_kcontrol_new peb2466_ch1_out_mix_controls[] = { + SOC_DAPM_SINGLE("TG1 Switch", PEB2466_CR1(1), 6, 1, 0), + SOC_DAPM_SINGLE("TG2 Switch", PEB2466_CR1(1), 7, 1, 0), + SOC_DAPM_SINGLE("Voice Switch", PEB2466_CR2(1), 0, 1, 0) +}; + +static const struct snd_kcontrol_new peb2466_ch2_out_mix_controls[] = { + SOC_DAPM_SINGLE("TG1 Switch", PEB2466_CR1(2), 6, 1, 0), + SOC_DAPM_SINGLE("TG2 Switch", PEB2466_CR1(2), 7, 1, 0), + SOC_DAPM_SINGLE("Voice Switch", PEB2466_CR2(2), 0, 1, 0) +}; + +static const struct snd_kcontrol_new peb2466_ch3_out_mix_controls[] = { + SOC_DAPM_SINGLE("TG1 Switch", PEB2466_CR1(3), 6, 1, 0), + SOC_DAPM_SINGLE("TG2 Switch", PEB2466_CR1(3), 7, 1, 0), + SOC_DAPM_SINGLE("Voice Switch", PEB2466_CR2(3), 0, 1, 0) +}; + +static const struct snd_kcontrol_new peb2466_controls[] = { + /* Attenuators */ + SOC_SINGLE("DAC0 -6dB Playback Switch", PEB2466_CR3(0), 2, 1, 0), + SOC_SINGLE("DAC1 -6dB Playback Switch", PEB2466_CR3(1), 2, 1, 0), + SOC_SINGLE("DAC2 -6dB Playback Switch", PEB2466_CR3(2), 2, 1, 0), + SOC_SINGLE("DAC3 -6dB Playback Switch", PEB2466_CR3(3), 2, 1, 0), + + /* Amplifiers */ + SOC_SINGLE("ADC0 +6dB Capture Switch", PEB2466_CR3(0), 3, 1, 0), + SOC_SINGLE("ADC1 +6dB Capture Switch", PEB2466_CR3(1), 3, 1, 0), + SOC_SINGLE("ADC2 +6dB Capture Switch", PEB2466_CR3(2), 3, 1, 0), + SOC_SINGLE("ADC3 +6dB Capture Switch", PEB2466_CR3(3), 3, 1, 0), + + /* Tone generators */ + SOC_ENUM_EXT("DAC0 TG1 Freq", peb2466_tg_freq[0][0], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC1 TG1 Freq", peb2466_tg_freq[1][0], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC2 TG1 Freq", peb2466_tg_freq[2][0], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC3 TG1 Freq", peb2466_tg_freq[3][0], + peb2466_tg_freq_get, peb2466_tg_freq_put), + + SOC_ENUM_EXT("DAC0 TG2 Freq", peb2466_tg_freq[0][1], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC1 TG2 Freq", peb2466_tg_freq[1][1], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC2 TG2 Freq", peb2466_tg_freq[2][1], + peb2466_tg_freq_get, peb2466_tg_freq_put), + SOC_ENUM_EXT("DAC3 TG2 Freq", peb2466_tg_freq[3][1], + peb2466_tg_freq_get, peb2466_tg_freq_put), +}; + +static const struct snd_soc_dapm_widget peb2466_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY("CH0 PWR", PEB2466_CR1(0), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("CH1 PWR", PEB2466_CR1(1), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("CH2 PWR", PEB2466_CR1(2), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("CH3 PWR", PEB2466_CR1(3), 0, 0, NULL, 0), + + SND_SOC_DAPM_DAC("CH0 DIN", "Playback", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("CH1 DIN", "Playback", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("CH2 DIN", "Playback", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("CH3 DIN", "Playback", SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_SIGGEN("CH0 TG1"), + SND_SOC_DAPM_SIGGEN("CH1 TG1"), + SND_SOC_DAPM_SIGGEN("CH2 TG1"), + SND_SOC_DAPM_SIGGEN("CH3 TG1"), + + SND_SOC_DAPM_SIGGEN("CH0 TG2"), + SND_SOC_DAPM_SIGGEN("CH1 TG2"), + SND_SOC_DAPM_SIGGEN("CH2 TG2"), + SND_SOC_DAPM_SIGGEN("CH3 TG2"), + + SND_SOC_DAPM_MIXER("DAC0 Mixer", SND_SOC_NOPM, 0, 0, + peb2466_ch0_out_mix_controls, + ARRAY_SIZE(peb2466_ch0_out_mix_controls)), + SND_SOC_DAPM_MIXER("DAC1 Mixer", SND_SOC_NOPM, 0, 0, + peb2466_ch1_out_mix_controls, + ARRAY_SIZE(peb2466_ch1_out_mix_controls)), + SND_SOC_DAPM_MIXER("DAC2 Mixer", SND_SOC_NOPM, 0, 0, + peb2466_ch2_out_mix_controls, + ARRAY_SIZE(peb2466_ch2_out_mix_controls)), + SND_SOC_DAPM_MIXER("DAC3 Mixer", SND_SOC_NOPM, 0, 0, + peb2466_ch3_out_mix_controls, + ARRAY_SIZE(peb2466_ch3_out_mix_controls)), + + SND_SOC_DAPM_PGA("DAC0 PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("DAC1 PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("DAC2 PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("DAC3 PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + + SND_SOC_DAPM_OUTPUT("OUT0"), + SND_SOC_DAPM_OUTPUT("OUT1"), + SND_SOC_DAPM_OUTPUT("OUT2"), + SND_SOC_DAPM_OUTPUT("OUT3"), + + SND_SOC_DAPM_INPUT("IN0"), + SND_SOC_DAPM_INPUT("IN1"), + SND_SOC_DAPM_INPUT("IN2"), + SND_SOC_DAPM_INPUT("IN3"), + + SND_SOC_DAPM_DAC("ADC0", "Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("ADC1", "Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("ADC2", "Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("ADC3", "Capture", SND_SOC_NOPM, 0, 0), +}; + +static const struct snd_soc_dapm_route peb2466_dapm_routes[] = { + { "CH0 DIN", NULL, "CH0 PWR" }, + { "CH1 DIN", NULL, "CH1 PWR" }, + { "CH2 DIN", NULL, "CH2 PWR" }, + { "CH3 DIN", NULL, "CH3 PWR" }, + + { "CH0 TG1", NULL, "CH0 PWR" }, + { "CH1 TG1", NULL, "CH1 PWR" }, + { "CH2 TG1", NULL, "CH2 PWR" }, + { "CH3 TG1", NULL, "CH3 PWR" }, + + { "CH0 TG2", NULL, "CH0 PWR" }, + { "CH1 TG2", NULL, "CH1 PWR" }, + { "CH2 TG2", NULL, "CH2 PWR" }, + { "CH3 TG2", NULL, "CH3 PWR" }, + + { "DAC0 Mixer", "TG1 Switch", "CH0 TG1" }, + { "DAC0 Mixer", "TG2 Switch", "CH0 TG2" }, + { "DAC0 Mixer", "Voice Switch", "CH0 DIN" }, + { "DAC0 Mixer", NULL, "CH0 DIN" }, + + { "DAC1 Mixer", "TG1 Switch", "CH1 TG1" }, + { "DAC1 Mixer", "TG2 Switch", "CH1 TG2" }, + { "DAC1 Mixer", "Voice Switch", "CH1 DIN" }, + { "DAC1 Mixer", NULL, "CH1 DIN" }, + + { "DAC2 Mixer", "TG1 Switch", "CH2 TG1" }, + { "DAC2 Mixer", "TG2 Switch", "CH2 TG2" }, + { "DAC2 Mixer", "Voice Switch", "CH2 DIN" }, + { "DAC2 Mixer", NULL, "CH2 DIN" }, + + { "DAC3 Mixer", "TG1 Switch", "CH3 TG1" }, + { "DAC3 Mixer", "TG2 Switch", "CH3 TG2" }, + { "DAC3 Mixer", "Voice Switch", "CH3 DIN" }, + { "DAC3 Mixer", NULL, "CH3 DIN" }, + + { "DAC0 PGA", NULL, "DAC0 Mixer" }, + { "DAC1 PGA", NULL, "DAC1 Mixer" }, + { "DAC2 PGA", NULL, "DAC2 Mixer" }, + { "DAC3 PGA", NULL, "DAC3 Mixer" }, + + { "OUT0", NULL, "DAC0 PGA" }, + { "OUT1", NULL, "DAC1 PGA" }, + { "OUT2", NULL, "DAC2 PGA" }, + { "OUT3", NULL, "DAC3 PGA" }, + + { "ADC0", NULL, "IN0" }, + { "ADC1", NULL, "IN1" }, + { "ADC2", NULL, "IN2" }, + { "ADC3", NULL, "IN3" }, + + { "ADC0", NULL, "CH0 PWR" }, + { "ADC1", NULL, "CH1 PWR" }, + { "ADC2", NULL, "CH2 PWR" }, + { "ADC3", NULL, "CH3 PWR" }, +}; + +static int peb2466_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int width) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(dai->component); + unsigned int chan; + unsigned int mask; + u8 slot; + int ret; + + switch (width) { + case 0: + /* Not set -> default 8 */ + case 8: + break; + default: + dev_err(dai->dev, "tdm slot width %d not supported\n", width); + return -EINVAL; + } + + mask = tx_mask; + slot = 0; + chan = 0; + while (mask && chan < PEB2466_NB_CHANNEL) { + if (mask & 0x1) { + ret = regmap_write(peb2466->regmap, PEB2466_CR5(chan), slot); + if (ret) { + dev_err(dai->dev, "chan %d set tx tdm slot failed (%d)\n", + chan, ret); + return ret; + } + chan++; + } + mask >>= 1; + slot++; + } + if (mask) { + dev_err(dai->dev, "too much tx slots defined (mask = 0x%x) support max %d\n", + tx_mask, PEB2466_NB_CHANNEL); + return -EINVAL; + } + peb2466->max_chan_playback = chan; + + mask = rx_mask; + slot = 0; + chan = 0; + while (mask && chan < PEB2466_NB_CHANNEL) { + if (mask & 0x1) { + ret = regmap_write(peb2466->regmap, PEB2466_CR4(chan), slot); + if (ret) { + dev_err(dai->dev, "chan %d set rx tdm slot failed (%d)\n", + chan, ret); + return ret; + } + chan++; + } + mask >>= 1; + slot++; + } + if (mask) { + dev_err(dai->dev, "too much rx slots defined (mask = 0x%x) support max %d\n", + rx_mask, PEB2466_NB_CHANNEL); + return -EINVAL; + } + peb2466->max_chan_capture = chan; + + return 0; +} + +static int peb2466_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(dai->component); + u8 xr6; + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + xr6 = PEB2466_XR6_PCM_OFFSET(1); + break; + case SND_SOC_DAIFMT_DSP_B: + xr6 = PEB2466_XR6_PCM_OFFSET(0); + break; + default: + dev_err(dai->dev, "Unsupported format 0x%x\n", + fmt & SND_SOC_DAIFMT_FORMAT_MASK); + return -EINVAL; + } + return regmap_write(peb2466->regmap, PEB2466_XR6, xr6); +} + +static int peb2466_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(dai->component); + unsigned int ch; + int ret; + u8 cr1; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_MU_LAW: + cr1 = PEB2466_CR1_LAW_MULAW; + break; + case SNDRV_PCM_FORMAT_A_LAW: + cr1 = PEB2466_CR1_LAW_ALAW; + break; + default: + dev_err(&peb2466->spi->dev, "Unsupported format 0x%x\n", + params_format(params)); + return -EINVAL; + } + + for (ch = 0; ch < PEB2466_NB_CHANNEL; ch++) { + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR1(ch), + PEB2466_CR1_LAW_MASK, cr1); + if (ret) + return ret; + } + + return 0; +} + +static const unsigned int peb2466_sample_bits[] = {8}; + +static struct snd_pcm_hw_constraint_list peb2466_sample_bits_constr = { + .list = peb2466_sample_bits, + .count = ARRAY_SIZE(peb2466_sample_bits), +}; + +static int peb2466_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(dai->component); + unsigned int max_ch; + int ret; + + max_ch = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + peb2466->max_chan_playback : peb2466->max_chan_capture; + + /* + * Disable stream support (min = 0, max = 0) if no timeslots were + * configured. + */ + ret = snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_CHANNELS, + max_ch ? 1 : 0, max_ch); + if (ret < 0) + return ret; + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_SAMPLE_BITS, + &peb2466_sample_bits_constr); +} + +static u64 peb2466_dai_formats[] = { + SND_SOC_POSSIBLE_DAIFMT_DSP_A | + SND_SOC_POSSIBLE_DAIFMT_DSP_B, +}; + +static const struct snd_soc_dai_ops peb2466_dai_ops = { + .startup = peb2466_dai_startup, + .hw_params = peb2466_dai_hw_params, + .set_tdm_slot = peb2466_dai_set_tdm_slot, + .set_fmt = peb2466_dai_set_fmt, + .auto_selectable_formats = peb2466_dai_formats, + .num_auto_selectable_formats = ARRAY_SIZE(peb2466_dai_formats), +}; + +static struct snd_soc_dai_driver peb2466_dai_driver = { + .name = "peb2466", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = PEB2466_NB_CHANNEL, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = PEB2466_NB_CHANNEL, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW, + }, + .ops = &peb2466_dai_ops, +}; + +static int peb2466_reset_audio(struct peb2466 *peb2466) +{ + static const struct reg_sequence reg_reset[] = { + { .reg = PEB2466_XR6, .def = 0x00 }, + + { .reg = PEB2466_CR5(0), .def = 0x00 }, + { .reg = PEB2466_CR4(0), .def = 0x00 }, + { .reg = PEB2466_CR3(0), .def = 0x00 }, + { .reg = PEB2466_CR2(0), .def = 0x00 }, + { .reg = PEB2466_CR1(0), .def = 0x00 }, + { .reg = PEB2466_CR0(0), .def = PEB2466_CR0_IMR1 }, + + { .reg = PEB2466_CR5(1), .def = 0x00 }, + { .reg = PEB2466_CR4(1), .def = 0x00 }, + { .reg = PEB2466_CR3(1), .def = 0x00 }, + { .reg = PEB2466_CR2(1), .def = 0x00 }, + { .reg = PEB2466_CR1(1), .def = 0x00 }, + { .reg = PEB2466_CR0(1), .def = PEB2466_CR0_IMR1 }, + + { .reg = PEB2466_CR5(2), .def = 0x00 }, + { .reg = PEB2466_CR4(2), .def = 0x00 }, + { .reg = PEB2466_CR3(2), .def = 0x00 }, + { .reg = PEB2466_CR2(2), .def = 0x00 }, + { .reg = PEB2466_CR1(2), .def = 0x00 }, + { .reg = PEB2466_CR0(2), .def = PEB2466_CR0_IMR1 }, + + { .reg = PEB2466_CR5(3), .def = 0x00 }, + { .reg = PEB2466_CR4(3), .def = 0x00 }, + { .reg = PEB2466_CR3(3), .def = 0x00 }, + { .reg = PEB2466_CR2(3), .def = 0x00 }, + { .reg = PEB2466_CR1(3), .def = 0x00 }, + { .reg = PEB2466_CR0(3), .def = PEB2466_CR0_IMR1 }, + }; + static const u8 imr1_p1[8] = {0x00, 0x90, 0x09, 0x00, 0x90, 0x09, 0x00, 0x00}; + static const u8 imr1_p2[8] = {0x7F, 0xFF, 0x00, 0x00, 0x90, 0x14, 0x40, 0x08}; + static const u8 zero[8] = {0}; + int ret; + int i; + + for (i = 0; i < ARRAY_SIZE(peb2466->ch); i++) { + peb2466->ch[i].tg1_freq_item = PEB2466_TONE_1000HZ; + peb2466->ch[i].tg2_freq_item = PEB2466_TONE_1000HZ; + + /* + * Even if not used, disabling IM/R1 filter is not recommended. + * Instead, we must configure it with default coefficients and + * enable it. + * The filter will be enabled right after (in the following + * regmap_multi_reg_write() call). + */ + ret = peb2466_write_buf(peb2466, PEB2466_IMR1_FILTER_P1(i), imr1_p1, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_IMR1_FILTER_P2(i), imr1_p2, 8); + if (ret) + return ret; + + /* Set all other filters coefficients to zero */ + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P1(i), zero, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P2(i), zero, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P3(i), zero, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_FRX_FILTER(i), zero, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_FRR_FILTER(i), zero, 8); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_AX_FILTER(i), zero, 4); + if (ret) + return ret; + ret = peb2466_write_buf(peb2466, PEB2466_AR_FILTER(i), zero, 4); + if (ret) + return ret; + } + + return regmap_multi_reg_write(peb2466->regmap, reg_reset, ARRAY_SIZE(reg_reset)); +} + +static int peb2466_fw_parse_thfilter(struct snd_soc_component *component, + u16 tag, u32 lng, const u8 *data) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + u8 mask; + int ret; + int i; + + dev_info(component->dev, "fw TH filter: mask %x, %*phN\n", *data, + lng - 1, data + 1); + + /* + * TH_FILTER TLV data: + * - @0 1 byte: Chan mask (bit set means related channel is concerned) + * - @1 8 bytes: TH-Filter coefficients part1 + * - @9 8 bytes: TH-Filter coefficients part2 + * - @17 8 bytes: TH-Filter coefficients part3 + */ + mask = *data; + for (i = 0; i < ARRAY_SIZE(peb2466->ch); i++) { + if (!(mask & (1 << i))) + continue; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_TH, 0); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P1(i), data + 1, 8); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P2(i), data + 9, 8); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_TH_FILTER_P3(i), data + 17, 8); + if (ret) + return ret; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_TH | PEB2466_CR0_THSEL_MASK, + PEB2466_CR0_TH | PEB2466_CR0_THSEL(i)); + if (ret) + return ret; + } + return 0; +} + +static int peb2466_fw_parse_imr1filter(struct snd_soc_component *component, + u16 tag, u32 lng, const u8 *data) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + u8 mask; + int ret; + int i; + + dev_info(component->dev, "fw IM/R1 filter: mask %x, %*phN\n", *data, + lng - 1, data + 1); + + /* + * IMR1_FILTER TLV data: + * - @0 1 byte: Chan mask (bit set means related channel is concerned) + * - @1 8 bytes: IM/R1-Filter coefficients part1 + * - @9 8 bytes: IM/R1-Filter coefficients part2 + */ + mask = *data; + for (i = 0; i < ARRAY_SIZE(peb2466->ch); i++) { + if (!(mask & (1 << i))) + continue; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_IMR1, 0); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_IMR1_FILTER_P1(i), data + 1, 8); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_IMR1_FILTER_P2(i), data + 9, 8); + if (ret) + return ret; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_IMR1, PEB2466_CR0_IMR1); + if (ret) + return ret; + } + return 0; +} + +static int peb2466_fw_parse_frxfilter(struct snd_soc_component *component, + u16 tag, u32 lng, const u8 *data) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + u8 mask; + int ret; + int i; + + dev_info(component->dev, "fw FRX filter: mask %x, %*phN\n", *data, + lng - 1, data + 1); + + /* + * FRX_FILTER TLV data: + * - @0 1 byte: Chan mask (bit set means related channel is concerned) + * - @1 8 bytes: FRX-Filter coefficients + */ + mask = *data; + for (i = 0; i < ARRAY_SIZE(peb2466->ch); i++) { + if (!(mask & (1 << i))) + continue; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_FRX, 0); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_FRX_FILTER(i), data + 1, 8); + if (ret) + return ret; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_FRX, PEB2466_CR0_FRX); + if (ret) + return ret; + } + return 0; +} + +static int peb2466_fw_parse_frrfilter(struct snd_soc_component *component, + u16 tag, u32 lng, const u8 *data) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); + u8 mask; + int ret; + int i; + + dev_info(component->dev, "fw FRR filter: mask %x, %*phN\n", *data, + lng - 1, data + 1); + + /* + * FRR_FILTER TLV data: + * - @0 1 byte: Chan mask (bit set means related channel is concerned) + * - @1 8 bytes: FRR-Filter coefficients + */ + mask = *data; + for (i = 0; i < ARRAY_SIZE(peb2466->ch); i++) { + if (!(mask & (1 << i))) + continue; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_FRR, 0); + if (ret) + return ret; + + ret = peb2466_write_buf(peb2466, PEB2466_FRR_FILTER(i), data + 1, 8); + if (ret) + return ret; + + ret = regmap_update_bits(peb2466->regmap, PEB2466_CR0(i), + PEB2466_CR0_FRR, PEB2466_CR0_FRR); + if (ret) + return ret; + } + return 0; +} + +static int peb2466_fw_parse_axfilter(struct snd_soc_component *component, + u16 tag, u32 lng, const u8 *data) +{ + struct peb2466 *peb2466 = snd_soc_component_get_drvdata(component); |