diff options
Diffstat (limited to 'sound/soc/uniphier/aio-core.c')
| -rw-r--r-- | sound/soc/uniphier/aio-core.c | 1251 |
1 files changed, 1251 insertions, 0 deletions
diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c new file mode 100644 index 000000000..9bcba06ba --- /dev/null +++ b/sound/soc/uniphier/aio-core.c @@ -0,0 +1,1251 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Socionext UniPhier AIO ALSA common driver. +// +// Copyright (c) 2016-2018 Socionext Inc. + +#include <linux/bitfield.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "aio.h" +#include "aio-reg.h" + +static u64 rb_cnt(u64 wr, u64 rd, u64 len) +{ + if (rd <= wr) + return wr - rd; + else + return len - (rd - wr); +} + +static u64 rb_cnt_to_end(u64 wr, u64 rd, u64 len) +{ + if (rd <= wr) + return wr - rd; + else + return len - rd; +} + +static u64 rb_space(u64 wr, u64 rd, u64 len) +{ + if (rd <= wr) + return len - (wr - rd) - 8; + else + return rd - wr - 8; +} + +static u64 rb_space_to_end(u64 wr, u64 rd, u64 len) +{ + if (rd > wr) + return rd - wr - 8; + else if (rd > 0) + return len - wr; + else + return len - wr - 8; +} + +u64 aio_rb_cnt(struct uniphier_aio_sub *sub) +{ + return rb_cnt(sub->wr_offs, sub->rd_offs, sub->compr_bytes); +} + +u64 aio_rbt_cnt_to_end(struct uniphier_aio_sub *sub) +{ + return rb_cnt_to_end(sub->wr_offs, sub->rd_offs, sub->compr_bytes); +} + +u64 aio_rb_space(struct uniphier_aio_sub *sub) +{ + return rb_space(sub->wr_offs, sub->rd_offs, sub->compr_bytes); +} + +u64 aio_rb_space_to_end(struct uniphier_aio_sub *sub) +{ + return rb_space_to_end(sub->wr_offs, sub->rd_offs, sub->compr_bytes); +} + +/** + * aio_iecout_set_enable - setup IEC output via SoC glue + * @chip: the AIO chip pointer + * @enable: false to stop the output, true to start + * + * Set enabled or disabled S/PDIF signal output to out of SoC via AOnIEC pins. + * This function need to call at driver startup. + * + * The regmap of SoC glue is specified by 'socionext,syscon' optional property + * of DT. This function has no effect if no property. + */ +void aio_iecout_set_enable(struct uniphier_aio_chip *chip, bool enable) +{ + struct regmap *r = chip->regmap_sg; + + if (!r) + return; + + regmap_write(r, SG_AOUTEN, (enable) ? ~0 : 0); +} + +/** + * aio_chip_set_pll - set frequency to audio PLL + * @chip : the AIO chip pointer + * @source: PLL + * @freq : frequency in Hz, 0 is ignored + * + * Sets frequency of audio PLL. This function can be called anytime, + * but it takes time till PLL is locked. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_chip_set_pll(struct uniphier_aio_chip *chip, int pll_id, + unsigned int freq) +{ + struct device *dev = &chip->pdev->dev; + struct regmap *r = chip->regmap; + int shift; + u32 v; + + /* Not change */ + if (freq == 0) + return 0; + + switch (pll_id) { + case AUD_PLL_A1: + shift = 0; + break; + case AUD_PLL_F1: + shift = 1; + break; + case AUD_PLL_A2: + shift = 2; + break; + case AUD_PLL_F2: + shift = 3; + break; + default: + dev_err(dev, "PLL(%d) not supported\n", pll_id); + return -EINVAL; + } + + switch (freq) { + case 36864000: + v = A2APLLCTR1_APLLX_36MHZ; + break; + case 33868800: + v = A2APLLCTR1_APLLX_33MHZ; + break; + default: + dev_err(dev, "PLL frequency not supported(%d)\n", freq); + return -EINVAL; + } + chip->plls[pll_id].freq = freq; + + regmap_update_bits(r, A2APLLCTR1, A2APLLCTR1_APLLX_MASK << shift, + v << shift); + + return 0; +} + +/** + * aio_chip_init - initialize AIO whole settings + * @chip: the AIO chip pointer + * + * Sets AIO fixed and whole device settings to AIO. + * This function need to call once at driver startup. + * + * The register area that is changed by this function is shared by all + * modules of AIO. But there is not race condition since this function + * has always set the same initialize values. + */ +void aio_chip_init(struct uniphier_aio_chip *chip) +{ + struct regmap *r = chip->regmap; + + regmap_update_bits(r, A2APLLCTR0, + A2APLLCTR0_APLLXPOW_MASK, + A2APLLCTR0_APLLXPOW_PWON); + + regmap_update_bits(r, A2EXMCLKSEL0, + A2EXMCLKSEL0_EXMCLK_MASK, + A2EXMCLKSEL0_EXMCLK_OUTPUT); + + regmap_update_bits(r, A2AIOINPUTSEL, A2AIOINPUTSEL_RXSEL_MASK, + A2AIOINPUTSEL_RXSEL_PCMI1_HDMIRX1 | + A2AIOINPUTSEL_RXSEL_PCMI2_SIF | + A2AIOINPUTSEL_RXSEL_PCMI3_EVEA | + A2AIOINPUTSEL_RXSEL_IECI1_HDMIRX1); + + if (chip->chip_spec->addr_ext) + regmap_update_bits(r, CDA2D_TEST, CDA2D_TEST_DDR_MODE_MASK, + CDA2D_TEST_DDR_MODE_EXTON0); + else + regmap_update_bits(r, CDA2D_TEST, CDA2D_TEST_DDR_MODE_MASK, + CDA2D_TEST_DDR_MODE_EXTOFF1); +} + +/** + * aio_init - initialize AIO substream + * @sub: the AIO substream pointer + * + * Sets fixed settings of each AIO substreams. + * This function need to call once at substream startup. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_init(struct uniphier_aio_sub *sub) +{ + struct device *dev = &sub->aio->chip->pdev->dev; + struct regmap *r = sub->aio->chip->regmap; + + regmap_write(r, A2RBNMAPCTR0(sub->swm->rb.hw), + MAPCTR0_EN | sub->swm->rb.map); + regmap_write(r, A2CHNMAPCTR0(sub->swm->ch.hw), + MAPCTR0_EN | sub->swm->ch.map); + + switch (sub->swm->type) { + case PORT_TYPE_I2S: + case PORT_TYPE_SPDIF: + case PORT_TYPE_EVE: + if (sub->swm->dir == PORT_DIR_INPUT) { + regmap_write(r, A2IIFNMAPCTR0(sub->swm->iif.hw), + MAPCTR0_EN | sub->swm->iif.map); + regmap_write(r, A2IPORTNMAPCTR0(sub->swm->iport.hw), + MAPCTR0_EN | sub->swm->iport.map); + } else { + regmap_write(r, A2OIFNMAPCTR0(sub->swm->oif.hw), + MAPCTR0_EN | sub->swm->oif.map); + regmap_write(r, A2OPORTNMAPCTR0(sub->swm->oport.hw), + MAPCTR0_EN | sub->swm->oport.map); + } + break; + case PORT_TYPE_CONV: + regmap_write(r, A2OIFNMAPCTR0(sub->swm->oif.hw), + MAPCTR0_EN | sub->swm->oif.map); + regmap_write(r, A2OPORTNMAPCTR0(sub->swm->oport.hw), + MAPCTR0_EN | sub->swm->oport.map); + regmap_write(r, A2CHNMAPCTR0(sub->swm->och.hw), + MAPCTR0_EN | sub->swm->och.map); + regmap_write(r, A2IIFNMAPCTR0(sub->swm->iif.hw), + MAPCTR0_EN | sub->swm->iif.map); + break; + default: + dev_err(dev, "Unknown port type %d.\n", sub->swm->type); + return -EINVAL; + } + + return 0; +} + +/** + * aio_port_reset - reset AIO port block + * @sub: the AIO substream pointer + * + * Resets the digital signal input/output port block of AIO. + */ +void aio_port_reset(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + regmap_write(r, AOUTRSTCTR0, BIT(sub->swm->oport.map)); + regmap_write(r, AOUTRSTCTR1, BIT(sub->swm->oport.map)); + } else { + regmap_update_bits(r, IPORTMXRSTCTR(sub->swm->iport.map), + IPORTMXRSTCTR_RSTPI_MASK, + IPORTMXRSTCTR_RSTPI_RESET); + regmap_update_bits(r, IPORTMXRSTCTR(sub->swm->iport.map), + IPORTMXRSTCTR_RSTPI_MASK, + IPORTMXRSTCTR_RSTPI_RELEASE); + } +} + +/** + * aio_port_set_ch - set channels of LPCM + * @sub: the AIO substream pointer, PCM substream only + * @ch : count of channels + * + * Set suitable slot selecting to input/output port block of AIO. + * + * This function may return error if non-PCM substream. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +static int aio_port_set_ch(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 slotsel_2ch[] = { + 0, 0, 0, 0, 0, + }; + u32 slotsel_multi[] = { + OPORTMXTYSLOTCTR_SLOTSEL_SLOT0, + OPORTMXTYSLOTCTR_SLOTSEL_SLOT1, + OPORTMXTYSLOTCTR_SLOTSEL_SLOT2, + OPORTMXTYSLOTCTR_SLOTSEL_SLOT3, + OPORTMXTYSLOTCTR_SLOTSEL_SLOT4, + }; + u32 mode, *slotsel; + int i; + + switch (params_channels(&sub->params)) { + case 8: + case 6: + mode = OPORTMXTYSLOTCTR_MODE; + slotsel = slotsel_multi; + break; + case 2: + mode = 0; + slotsel = slotsel_2ch; + break; + default: + return -EINVAL; + } + + for (i = 0; i < AUD_MAX_SLOTSEL; i++) { + regmap_update_bits(r, OPORTMXTYSLOTCTR(sub->swm->oport.map, i), + OPORTMXTYSLOTCTR_MODE, mode); + regmap_update_bits(r, OPORTMXTYSLOTCTR(sub->swm->oport.map, i), + OPORTMXTYSLOTCTR_SLOTSEL_MASK, slotsel[i]); + } + + return 0; +} + +/** + * aio_port_set_rate - set sampling rate of LPCM + * @sub: the AIO substream pointer, PCM substream only + * @rate: Sampling rate in Hz. + * + * Set suitable I2S format settings to input/output port block of AIO. + * Parameter is specified by hw_params(). + * + * This function may return error if non-PCM substream. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +static int aio_port_set_rate(struct uniphier_aio_sub *sub, int rate) +{ + struct regmap *r = sub->aio->chip->regmap; + struct device *dev = &sub->aio->chip->pdev->dev; + u32 v; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + switch (rate) { + case 8000: + v = OPORTMXCTR1_FSSEL_8; + break; + case 11025: + v = OPORTMXCTR1_FSSEL_11_025; + break; + case 12000: + v = OPORTMXCTR1_FSSEL_12; + break; + case 16000: + v = OPORTMXCTR1_FSSEL_16; + break; + case 22050: + v = OPORTMXCTR1_FSSEL_22_05; + break; + case 24000: + v = OPORTMXCTR1_FSSEL_24; + break; + case 32000: + v = OPORTMXCTR1_FSSEL_32; + break; + case 44100: + v = OPORTMXCTR1_FSSEL_44_1; + break; + case 48000: + v = OPORTMXCTR1_FSSEL_48; + break; + case 88200: + v = OPORTMXCTR1_FSSEL_88_2; + break; + case 96000: + v = OPORTMXCTR1_FSSEL_96; + break; + case 176400: + v = OPORTMXCTR1_FSSEL_176_4; + break; + case 192000: + v = OPORTMXCTR1_FSSEL_192; + break; + default: + dev_err(dev, "Rate not supported(%d)\n", rate); + return -EINVAL; + } + + regmap_update_bits(r, OPORTMXCTR1(sub->swm->oport.map), + OPORTMXCTR1_FSSEL_MASK, v); + } else { + switch (rate) { + case 8000: + v = IPORTMXCTR1_FSSEL_8; + break; + case 11025: + v = IPORTMXCTR1_FSSEL_11_025; + break; + case 12000: + v = IPORTMXCTR1_FSSEL_12; + break; + case 16000: + v = IPORTMXCTR1_FSSEL_16; + break; + case 22050: + v = IPORTMXCTR1_FSSEL_22_05; + break; + case 24000: + v = IPORTMXCTR1_FSSEL_24; + break; + case 32000: + v = IPORTMXCTR1_FSSEL_32; + break; + case 44100: + v = IPORTMXCTR1_FSSEL_44_1; + break; + case 48000: + v = IPORTMXCTR1_FSSEL_48; + break; + case 88200: + v = IPORTMXCTR1_FSSEL_88_2; + break; + case 96000: + v = IPORTMXCTR1_FSSEL_96; + break; + case 176400: + v = IPORTMXCTR1_FSSEL_176_4; + break; + case 192000: + v = IPORTMXCTR1_FSSEL_192; + break; + default: + dev_err(dev, "Rate not supported(%d)\n", rate); + return -EINVAL; + } + + regmap_update_bits(r, IPORTMXCTR1(sub->swm->iport.map), + IPORTMXCTR1_FSSEL_MASK, v); + } + + return 0; +} + +/** + * aio_port_set_fmt - set format of I2S data + * @sub: the AIO substream pointer, PCM substream only + * This parameter has no effect if substream is I2S or PCM. + * + * Set suitable I2S format settings to input/output port block of AIO. + * Parameter is specified by set_fmt(). + * + * This function may return error if non-PCM substream. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +static int aio_port_set_fmt(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + struct device *dev = &sub->aio->chip->pdev->dev; + u32 v; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + switch (sub->aio->fmt) { + case SND_SOC_DAIFMT_LEFT_J: + v = OPORTMXCTR1_I2SLRSEL_LEFT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + v = OPORTMXCTR1_I2SLRSEL_RIGHT; + break; + case SND_SOC_DAIFMT_I2S: + v = OPORTMXCTR1_I2SLRSEL_I2S; + break; + default: + dev_err(dev, "Format is not supported(%d)\n", + sub->aio->fmt); + return -EINVAL; + } + + v |= OPORTMXCTR1_OUTBITSEL_24; + regmap_update_bits(r, OPORTMXCTR1(sub->swm->oport.map), + OPORTMXCTR1_I2SLRSEL_MASK | + OPORTMXCTR1_OUTBITSEL_MASK, v); + } else { + switch (sub->aio->fmt) { + case SND_SOC_DAIFMT_LEFT_J: + v = IPORTMXCTR1_LRSEL_LEFT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + v = IPORTMXCTR1_LRSEL_RIGHT; + break; + case SND_SOC_DAIFMT_I2S: + v = IPORTMXCTR1_LRSEL_I2S; + break; + default: + dev_err(dev, "Format is not supported(%d)\n", + sub->aio->fmt); + return -EINVAL; + } + + v |= IPORTMXCTR1_OUTBITSEL_24 | + IPORTMXCTR1_CHSEL_ALL; + regmap_update_bits(r, IPORTMXCTR1(sub->swm->iport.map), + IPORTMXCTR1_LRSEL_MASK | + IPORTMXCTR1_OUTBITSEL_MASK | + IPORTMXCTR1_CHSEL_MASK, v); + } + + return 0; +} + +/** + * aio_port_set_clk - set clock and divider of AIO port block + * @sub: the AIO substream pointer + * + * Set suitable PLL clock divider and relational settings to + * input/output port block of AIO. Parameters are specified by + * set_sysclk() and set_pll(). + * + * Return: Zero if successful, otherwise a negative value on error. + */ +static int aio_port_set_clk(struct uniphier_aio_sub *sub) +{ + struct uniphier_aio_chip *chip = sub->aio->chip; + struct device *dev = &sub->aio->chip->pdev->dev; + struct regmap *r = sub->aio->chip->regmap; + u32 v_pll[] = { + OPORTMXCTR2_ACLKSEL_A1, OPORTMXCTR2_ACLKSEL_F1, + OPORTMXCTR2_ACLKSEL_A2, OPORTMXCTR2_ACLKSEL_F2, + OPORTMXCTR2_ACLKSEL_A2PLL, + OPORTMXCTR2_ACLKSEL_RX1, + }; + u32 v_div[] = { + OPORTMXCTR2_DACCKSEL_1_2, OPORTMXCTR2_DACCKSEL_1_3, + OPORTMXCTR2_DACCKSEL_1_1, OPORTMXCTR2_DACCKSEL_2_3, + }; + u32 v; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + if (sub->swm->type == PORT_TYPE_I2S) { + if (sub->aio->pll_out >= ARRAY_SIZE(v_pll)) { + dev_err(dev, "PLL(%d) is invalid\n", + sub->aio->pll_out); + return -EINVAL; + } + if (sub->aio->plldiv >= ARRAY_SIZE(v_div)) { + dev_err(dev, "PLL divider(%d) is invalid\n", + sub->aio->plldiv); + return -EINVAL; + } + + v = v_pll[sub->aio->pll_out] | + OPORTMXCTR2_MSSEL_MASTER | + v_div[sub->aio->plldiv]; + + switch (chip->plls[sub->aio->pll_out].freq) { + case 0: + case 36864000: + case 33868800: + v |= OPORTMXCTR2_EXTLSIFSSEL_36; + break; + default: + v |= OPORTMXCTR2_EXTLSIFSSEL_24; + break; + } + } else if (sub->swm->type == PORT_TYPE_EVE) { + v = OPORTMXCTR2_ACLKSEL_A2PLL | + OPORTMXCTR2_MSSEL_MASTER | + OPORTMXCTR2_EXTLSIFSSEL_36 | + OPORTMXCTR2_DACCKSEL_1_2; + } else if (sub->swm->type == PORT_TYPE_SPDIF) { + if (sub->aio->pll_out >= ARRAY_SIZE(v_pll)) { + dev_err(dev, "PLL(%d) is invalid\n", + sub->aio->pll_out); + return -EINVAL; + } + v = v_pll[sub->aio->pll_out] | + OPORTMXCTR2_MSSEL_MASTER | + OPORTMXCTR2_DACCKSEL_1_2; + + switch (chip->plls[sub->aio->pll_out].freq) { + case 0: + case 36864000: + case 33868800: + v |= OPORTMXCTR2_EXTLSIFSSEL_36; + break; + default: + v |= OPORTMXCTR2_EXTLSIFSSEL_24; + break; + } + } else { + v = OPORTMXCTR2_ACLKSEL_A1 | + OPORTMXCTR2_MSSEL_MASTER | + OPORTMXCTR2_EXTLSIFSSEL_36 | + OPORTMXCTR2_DACCKSEL_1_2; + } + regmap_write(r, OPORTMXCTR2(sub->swm->oport.map), v); + } else { + v = IPORTMXCTR2_ACLKSEL_A1 | + IPORTMXCTR2_MSSEL_SLAVE | + IPORTMXCTR2_EXTLSIFSSEL_36 | + IPORTMXCTR2_DACCKSEL_1_2; + regmap_write(r, IPORTMXCTR2(sub->swm->iport.map), v); + } + + return 0; +} + +/** + * aio_port_set_param - set parameters of AIO port block + * @sub: the AIO substream pointer + * @pass_through: Zero if sound data is LPCM, otherwise if data is not LPCM. + * This parameter has no effect if substream is I2S or PCM. + * @params: hardware parameters of ALSA + * + * Set suitable setting to input/output port block of AIO to process the + * specified in params. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_port_set_param(struct uniphier_aio_sub *sub, int pass_through, + const struct snd_pcm_hw_params *params) +{ + struct regmap *r = sub->aio->chip->regmap; + unsigned int rate; + u32 v; + int ret; + + if (!pass_through) { + if (sub->swm->type == PORT_TYPE_EVE || + sub->swm->type == PORT_TYPE_CONV) { + rate = 48000; + } else { + rate = params_rate(params); + } + + ret = aio_port_set_ch(sub); + if (ret) + return ret; + + ret = aio_port_set_rate(sub, rate); + if (ret) + return ret; + + ret = aio_port_set_fmt(sub); + if (ret) + return ret; + } + + ret = aio_port_set_clk(sub); + if (ret) + return ret; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + if (pass_through) + v = OPORTMXCTR3_SRCSEL_STREAM | + OPORTMXCTR3_VALID_STREAM; + else + v = OPORTMXCTR3_SRCSEL_PCM | + OPORTMXCTR3_VALID_PCM; + + v |= OPORTMXCTR3_IECTHUR_IECOUT | + OPORTMXCTR3_PMSEL_PAUSE | + OPORTMXCTR3_PMSW_MUTE_OFF; + regmap_write(r, OPORTMXCTR3(sub->swm->oport.map), v); + } else { + regmap_write(r, IPORTMXACLKSEL0EX(sub->swm->iport.map), + IPORTMXACLKSEL0EX_ACLKSEL0EX_INTERNAL); + regmap_write(r, IPORTMXEXNOE(sub->swm->iport.map), + IPORTMXEXNOE_PCMINOE_INPUT); + } + + return 0; +} + +/** + * aio_port_set_enable - start or stop of AIO port block + * @sub: the AIO substream pointer + * @enable: zero to stop the block, otherwise to start + * + * Start or stop the signal input/output port block of AIO. + */ +void aio_port_set_enable(struct uniphier_aio_sub *sub, int enable) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + regmap_write(r, OPORTMXPATH(sub->swm->oport.map), + sub->swm->oif.map); + + regmap_update_bits(r, OPORTMXMASK(sub->swm->oport.map), + OPORTMXMASK_IUDXMSK_MASK | + OPORTMXMASK_IUXCKMSK_MASK | + OPORTMXMASK_DXMSK_MASK | + OPORTMXMASK_XCKMSK_MASK, + OPORTMXMASK_IUDXMSK_OFF | + OPORTMXMASK_IUXCKMSK_OFF | + OPORTMXMASK_DXMSK_OFF | + OPORTMXMASK_XCKMSK_OFF); + + if (enable) + regmap_write(r, AOUTENCTR0, BIT(sub->swm->oport.map)); + else + regmap_write(r, AOUTENCTR1, BIT(sub->swm->oport.map)); + } else { + regmap_update_bits(r, IPORTMXMASK(sub->swm->iport.map), + IPORTMXMASK_IUXCKMSK_MASK | + IPORTMXMASK_XCKMSK_MASK, + IPORTMXMASK_IUXCKMSK_OFF | + IPORTMXMASK_XCKMSK_OFF); + + if (enable) + regmap_update_bits(r, + IPORTMXCTR2(sub->swm->iport.map), + IPORTMXCTR2_REQEN_MASK, + IPORTMXCTR2_REQEN_ENABLE); + else + regmap_update_bits(r, + IPORTMXCTR2(sub->swm->iport.map), + IPORTMXCTR2_REQEN_MASK, + IPORTMXCTR2_REQEN_DISABLE); + } +} + +/** + * aio_port_get_volume - get volume of AIO port block + * @sub: the AIO substream pointer + * + * Return: current volume, range is 0x0000 - 0xffff + */ +int aio_port_get_volume(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 v; + + regmap_read(r, OPORTMXTYVOLGAINSTATUS(sub->swm->oport.map, 0), &v); + + return FIELD_GET(OPORTMXTYVOLGAINSTATUS_CUR_MASK, v); +} + +/** + * aio_port_set_volume - set volume of AIO port block + * @sub: the AIO substream pointer + * @vol: target volume, range is 0x0000 - 0xffff. + * + * Change digital volume and perfome fade-out/fade-in effect for specified + * output slot of port. Gained PCM value can calculate as the following: + * Gained = Original * vol / 0x4000 + */ +void aio_port_set_volume(struct uniphier_aio_sub *sub, int vol) +{ + struct regmap *r = sub->aio->chip->regmap; + int oport_map = sub->swm->oport.map; + int cur, diff, slope = 0, fs; + + if (sub->swm->dir == PORT_DIR_INPUT) + return; + + cur = aio_port_get_volume(sub); + diff = abs(vol - cur); + fs = params_rate(&sub->params); + if (fs) + slope = diff / AUD_VOL_FADE_TIME * 1000 / fs; + slope = max(1, slope); + + regmap_update_bits(r, OPORTMXTYVOLPARA1(oport_map, 0), + OPORTMXTYVOLPARA1_SLOPEU_MASK, slope << 16); + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_TARGET_MASK, vol); + + if (cur < vol) + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_FADE_MASK, + OPORTMXTYVOLPARA2_FADE_FADEIN); + else + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_FADE_MASK, + OPORTMXTYVOLPARA2_FADE_FADEOUT); + + regmap_write(r, AOUTFADECTR0, BIT(oport_map)); +} + +/** + * aio_if_set_param - set parameters of AIO DMA I/F block + * @sub: the AIO substream pointer + * @pass_through: Zero if sound data is LPCM, otherwise if data is not LPCM. + * This parameter has no effect if substream is I2S or PCM. + * + * Set suitable setting to DMA interface block of AIO to process the + * specified in settings. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_if_set_param(struct uniphier_aio_sub *sub, int pass_through) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 memfmt, v; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + if (pass_through) { + v = PBOUTMXCTR0_ENDIAN_0123 | + PBOUTMXCTR0_MEMFMT_STREAM; + } else { + switch (params_channels(&sub->params)) { + case 2: + memfmt = PBOUTMXCTR0_MEMFMT_2CH; + break; + case 6: + memfmt = PBOUTMXCTR0_MEMFMT_6CH; + break; + case 8: + memfmt = PBOUTMXCTR0_MEMFMT_8CH; + break; + default: + return -EINVAL; + } + v = PBOUTMXCTR0_ENDIAN_3210 | memfmt; + } + + regmap_write(r, PBOUTMXCTR0(sub->swm->oif.map), v); + regmap_write(r, PBOUTMXCTR1(sub->swm->oif.map), 0); + } else { + regmap_write(r, PBINMXCTR(sub->swm->iif.map), + PBINMXCTR_NCONNECT_CONNECT | + PBINMXCTR_INOUTSEL_IN | + (sub->swm->iport.map << PBINMXCTR_PBINSEL_SHIFT) | + PBINMXCTR_ENDIAN_3210 | + PBINMXCTR_MEMFMT_D0); + } + + return 0; +} + +/** + * aio_oport_set_stream_type - set parameters of AIO playback port block + * @sub: the AIO substream pointer + * @pc: Pc type of IEC61937 + * + * Set special setting to output port block of AIO to output the stream + * via S/PDIF. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_oport_set_stream_type(struct uniphier_aio_sub *sub, + enum IEC61937_PC pc) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 repet = 0, pause = OPORTMXPAUDAT_PAUSEPC_CMN; + + switch (pc) { + case IEC61937_PC_AC3: + repet = OPORTMXREPET_STRLENGTH_AC3 | + OPORTMXREPET_PMLENGTH_AC3; + pause |= OPORTMXPAUDAT_PAUSEPD_AC3; + break; + case IEC61937_PC_MPA: + repet = OPORTMXREPET_STRLENGTH_MPA | + OPORTMXREPET_PMLENGTH_MPA; + pause |= OPORTMXPAUDAT_PAUSEPD_MPA; + break; + case IEC61937_PC_MP3: + repet = OPORTMXREPET_STRLENGTH_MP3 | + OPORTMXREPET_PMLENGTH_MP3; + pause |= OPORTMXPAUDAT_PAUSEPD_MP3; + break; + case IEC61937_PC_DTS1: + repet = OPORTMXREPET_STRLENGTH_DTS1 | + OPORTMXREPET_PMLENGTH_DTS1; + pause |= OPORTMXPAUDAT_PAUSEPD_DTS1; + break; + case IEC61937_PC_DTS2: + repet = OPORTMXREPET_STRLENGTH_DTS2 | + OPORTMXREPET_PMLENGTH_DTS2; + pause |= OPORTMXPAUDAT_PAUSEPD_DTS2; + break; + case IEC61937_PC_DTS3: + repet = OPORTMXREPET_STRLENGTH_DTS3 | + OPORTMXREPET_PMLENGTH_DTS3; + pause |= OPORTMXPAUDAT_PAUSEPD_DTS3; + break; + case IEC61937_PC_AAC: + repet = OPORTMXREPET_STRLENGTH_AAC | + OPORTMXREPET_PMLENGTH_AAC; + pause |= OPORTMXPAUDAT_PAUSEPD_AAC; + break; + case IEC61937_PC_PAUSE: + /* Do nothing */ + break; + } + + regmap_write(r, OPORTMXREPET(sub->swm->oport.map), repet); + regmap_write(r, OPORTMXPAUDAT(sub->swm->oport.map), pause); + + return 0; +} + +/** + * aio_src_reset - reset AIO SRC block + * @sub: the AIO substream pointer + * + * Resets the digital signal input/output port with sampling rate converter + * block of AIO. + * This function has no effect if substream is not supported rate converter. + */ +void aio_src_reset(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (sub->swm->dir != PORT_DIR_OUTPUT) + return; + + regmap_write(r, AOUTSRCRSTCTR0, BIT(sub->swm->oport.map)); + regmap_write(r, AOUTSRCRSTCTR1, BIT(sub->swm->oport.map)); +} + +/** + * aio_src_set_param - set parameters of AIO SRC block + * @sub: the AIO substream pointer + * @params: hardware parameters of ALSA + * + * Set suitable setting to input/output port with sampling rate converter + * block of AIO to process the specified in params. + * This function has no effect if substream is not supported rate converter. + * + * Return: Zero if successful, otherwise a negative value on error. + */ +int aio_src_set_param(struct uniphier_aio_sub *sub, + const struct snd_pcm_hw_params *params) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 v; + + if (sub->swm->dir != PORT_DIR_OUTPUT) + return 0; + + regmap_write(r, OPORTMXSRC1CTR(sub->swm->oport.map), + OPORTMXSRC1CTR_THMODE_SRC | + OPORTMXSRC1CTR_SRCPATH_CALC | + OPORTMXSRC1CTR_SYNC_ASYNC | + OPORTMXSRC1CTR_FSIIPSEL_INNER | + OPORTMXSRC1CTR_FSISEL_ACLK); + + switch (params_rate(params)) { + default: + case 48000: + v = OPORTMXRATE_I_ACLKSEL_APLLA1 | + OPORTMXRATE_I_MCKSEL_36 | + OPORTMXRATE_I_FSSEL_48; + break; + case 44100: + v = OPORTMXRATE_I_ACLKSEL_APLLA2 | + OPORTMXRATE_I_MCKSEL_33 | + OPORTMXRATE_I_FSSEL_44_1; + break; + case 32000: + v = OPORTMXRATE_I_ACLKSEL_APLLA1 | + OPORTMXRATE_I_MCKSEL_36 | + OPORTMXRATE_I_FSSEL_32; + break; + } + + regmap_write(r, OPORTMXRATE_I(sub->swm->oport.map), + v | OPORTMXRATE_I_ACLKSRC_APLL | + OPORTMXRATE_I_LRCKSTP_STOP); + regmap_update_bits(r, OPORTMXRATE_I(sub->swm->oport.map), + OPORTMXRATE_I_LRCKSTP_MASK, + OPORTMXRATE_I_LRCKSTP_START); + + return 0; +} + +int aio_srcif_set_param(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + + regmap_write(r, PBINMXCTR(sub->swm->iif.map), + PBINMXCTR_NCONNECT_CONNECT | + PBINMXCTR_INOUTSEL_OUT | + (sub->swm->oport.map << PBINMXCTR_PBINSEL_SHIFT) | + PBINMXCTR_ENDIAN_3210 | + PBINMXCTR_MEMFMT_D0); + + return 0; +} + +int aio_srcch_set_param(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + + regmap_write(r, CDA2D_CHMXCTRL1(sub->swm->och.map), + CDA2D_CHMXCTRL1_INDSIZE_INFINITE); + + regmap_write(r, CDA2D_CHMXSRCAMODE(sub->swm->och.map), + CDA2D_CHMXAMODE_ENDIAN_3210 | + CDA2D_CHMXAMODE_AUPDT_FIX | + CDA2D_CHMXAMODE_TYPE_NORMAL); + + regmap_write(r, CDA2D_CHMXDSTAMODE(sub->swm->och.map), + CDA2D_CHMXAMODE_ENDIAN_3210 | + CDA2D_CHMXAMODE_AUPDT_INC | + CDA2D_CHMXAMODE_TYPE_RING | + (sub->swm->och.map << CDA2D_CHMXAMODE_RSSEL_SHIFT)); + + return 0; +} + +void aio_srcch_set_enable(struct uniphier_aio_sub *sub, int enable) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 v; + + if (enable) + v = CDA2D_STRT0_STOP_START; + else + v = CDA2D_STRT0_STOP_STOP; + + regmap_write(r, CDA2D_STRT0, + v | BIT(sub->swm->och.map)); +} + +int aiodma_ch_set_param(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 v; + + regmap_write(r, CDA2D_CHMXCTRL1(sub->swm->ch.map), + CDA2D_CHMXCTRL1_INDSIZE_INFINITE); + + v = CDA2D_CHMXAMODE_ENDIAN_3210 | + CDA2D_CHMXAMODE_AUPDT_INC | + CDA2D_CHMXAMODE_TYPE_NORMAL | + (sub->swm->rb.map << CDA2D_CHMXAMODE_RSSEL_SHIFT); + if (sub->swm->dir == PORT_DIR_OUTPUT) + regmap_write(r, CDA2D_CHMXSRCAMODE(sub->swm->ch.map), v); + else + regmap_write(r, CDA2D_CHMXDSTAMODE(sub->swm->ch.map), v); + + return 0; +} + +void aiodma_ch_set_enable(struct uniphier_aio_sub *sub, int enable) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (enable) { + regmap_write(r, CDA2D_STRT0, + CDA2D_STRT0_STOP_START | BIT(sub->swm->ch.map)); + + regmap_update_bits(r, INTRBIM(0), + BIT(sub->swm->rb.map), + BIT(sub->swm->rb.map)); + } else { + regmap_write(r, CDA2D_STRT0, + CDA2D_STRT0_STOP_STOP | BIT(sub->swm->ch.map)); + + regmap_update_bits(r, INTRBIM(0), + BIT(sub->swm->rb.map), + 0); + } +} + +static u64 aiodma_rb_get_rp(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 pos_u, pos_l; + int i; + + regmap_write(r, CDA2D_RDPTRLOAD, + CDA2D_RDPTRLOAD_LSFLAG_STORE | BIT(sub->swm->rb.map)); + /* Wait for setup */ + for (i = 0; i < 6; i++) + regmap_read(r, CDA2D_RBMXRDPTR(sub->swm->rb.map), &pos_l); + + regmap_read(r, CDA2D_RBMXRDPTR(sub->swm->rb.map), &pos_l); + regmap_read(r, CDA2D_RBMXRDPTRU(sub->swm->rb.map), &pos_u); + pos_u = FIELD_GET(CDA2D_RBMXPTRU_PTRU_MASK, pos_u); + + return ((u64)pos_u << 32) | pos_l; +} + +static void aiodma_rb_set_rp(struct uniphier_aio_sub *sub, u64 pos) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 tmp; + int i; + + regmap_write(r, CDA2D_RBMXRDPTR(sub->swm->rb.map), (u32)pos); + regmap_write(r, CDA2D_RBMXRDPTRU(sub->swm->rb.map), (u32)(pos >> 32)); + regmap_write(r, CDA2D_RDPTRLOAD, BIT(sub->swm->rb.map)); + /* Wait for setup */ + for (i = 0; i < 6; i++) + regmap_read(r, CDA2D_RBMXRDPTR(sub->swm->rb.map), &tmp); +} + +static u64 aiodma_rb_get_wp(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 pos_u, pos_l; + int i; + + regmap_write(r, CDA2D_WRPTRLOAD, + CDA2D_WRPTRLOAD_LSFLAG_STORE | BIT(sub->swm->rb.map)); + /* Wait for setup */ + for (i = 0; i < 6; i++) + regmap_read(r, CDA2D_RBMXWRPTR(sub->swm->rb.map), &pos_l); + + regmap_read(r, CDA2D_RBMXWRPTR(sub->swm->rb.map), &pos_l); + regmap_read(r, CDA2D_RBMXWRPTRU(sub->swm->rb.map), &pos_u); + pos_u = FIELD_GET(CDA2D_RBMXPTRU_PTRU_MASK, pos_u); + + return ((u64)pos_u << 32) | pos_l; +} + +static void aiodma_rb_set_wp(struct uniphier_aio_sub *sub, u64 pos) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 tmp; + int i; + + regmap_write(r, CDA2D_RBMXWRPTR(sub->swm->rb.map), + lower_32_bits(pos)); + regmap_write(r, CDA2D_RBMXWRPTRU(sub->swm->rb.map), + upper_32_bits(pos)); + regmap_write(r, CDA2D_WRPTRLOAD, BIT(sub->swm->rb.map)); + /* Wait for setup */ + for (i = 0; i < 6; i++) + regmap_read(r, CDA2D_RBMXWRPTR(sub->swm->rb.map), &tmp); +} + +int aiodma_rb_set_threshold(struct uniphier_aio_sub *sub, u64 size, u32 th) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (size <= th) + return -EINVAL; + + regmap_write(r, CDA2D_RBMXBTH(sub->swm->rb.map), th); + regmap_write(r, CDA2D_RBMXRTH(sub->swm->rb.map), th); + + return 0; +} + +int aiodma_rb_set_buffer(struct uniphier_aio_sub *sub, u64 start, u64 end, + int period) +{ + struct regmap *r = sub->aio->chip->regmap; + u64 size = end - start; + int ret; + + if (end < start || period < 0) + return -EINVAL; + + regmap_write(r, CDA2D_RBMXCNFG(sub->swm->rb.map), 0); + regmap_write(r, CDA2D_RBMXBGNADRS(sub->swm->rb.map), + lower_32_bits(start)); + regmap_write(r, CDA2D_RBMXBGNADRSU(sub->swm->rb.map), + upper_32_bits(start)); + regmap_write(r, CDA2D_RBMXENDADRS(sub->swm->rb.map), + lower_32_bits(end)); + regmap_write(r, CDA2D_RBMXENDADRSU(sub->swm->rb.map), + upper_32_bits(end)); + + regmap_write(r, CDA2D_RBADRSLOAD, BIT(sub->swm->rb.map)); + + ret = aiodma_rb_set_threshold(sub, size, 2 * period); + if (ret) + return ret; + + if (sub->swm->dir == PORT_DIR_OUTPUT) { + aiodma_rb_set_rp(sub, start); + aiodma_rb_set_wp(sub, end - period); + + regmap_update_bits(r, CDA2D_RBMXIE(sub->swm->rb.map), + CDA2D_RBMXIX_SPACE, + CDA2D_RBMXIX_SPACE); + } else { + aiodma_rb_set_rp(sub, end - period); + aiodma_rb_set_wp(sub, start); + + regmap_update_bits(r, CDA2D_RBMXIE(sub->swm->rb.map), + CDA2D_RBMXIX_REMAIN, + CDA2D_RBMXIX_REMAIN); + } + + sub->threshold = 2 * period; + sub->rd_offs = 0; + sub->wr_offs = 0; + sub->rd_org = 0; + sub->wr_org = 0; + sub->rd_total = 0; + sub->wr_total = 0; + + return 0; +} + +void aiodma_rb_sync(struct uniphier_aio_sub *sub, u64 start, u64 size, + int period) +{ + if (sub->swm->dir == PORT_DIR_OUTPUT) { + sub->rd_offs = aiodma_rb_get_rp(sub) - start; + + if (sub->use_mmap) { + sub->threshold = 2 * period; + aiodma_rb_set_threshold(sub, size, 2 * period); + + sub->wr_offs = sub->rd_offs - period; + if (sub->rd_offs < period) + sub->wr_offs += size; + } + aiodma_rb_set_wp(sub, sub->wr_offs + start); + } else { + sub->wr_offs = aiodma_rb_get_wp(sub) - start; + + if (sub->use_mmap) { + sub->threshold = 2 * period; + aiodma_rb_set_threshold(sub, size, 2 * period); + + sub->rd_offs = sub->wr_offs - period; + if (sub->wr_offs < period) + sub->rd_offs += size; + } + aiodma_rb_set_rp(sub, sub->rd_offs + start); + } + + sub->rd_total += sub->rd_offs - sub->rd_org; + if (sub->rd_offs < sub->rd_org) + sub->rd_total += size; + sub->wr_total += sub->wr_offs - sub->wr_org; + if (sub->wr_offs < sub->wr_org) + sub->wr_total += size; + + sub->rd_org = sub->rd_offs; + sub->wr_org = sub->wr_offs; +} + +bool aiodma_rb_is_irq(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 ir; + + regmap_read(r, CDA2D_RBMXIR(sub->swm->rb.map), &ir); + + if (sub->swm->dir == PORT_DIR_OUTPUT) + return !!(ir & CDA2D_RBMXIX_SPACE); + else + return !!(ir & CDA2D_RBMXIX_REMAIN); +} + +void aiodma_rb_clear_irq(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + + if (sub->swm->dir == PORT_DIR_OUTPUT) + regmap_write(r, CDA2D_RBMXIR(sub->swm->rb.map), + CDA2D_RBMXIX_SPACE); + else + regmap_write(r, CDA2D_RBMXIR(sub->swm->rb.map), + CDA2D_RBMXIX_REMAIN); +} |