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linux/sound/soc/uniphier/aio-core.c

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// SPDX-License-Identifier: GPL-2.0
//
// Socionext UniPhier AIO ALSA common driver.
//
// Copyright (c) 2016-2018 Socionext Inc.
//
// 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; version 2
// of the License.
//
// 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, see <http://www.gnu.org/licenses/>.
#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_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.
*/
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.
*/
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.
*/
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_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_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 v;
if (sub->swm->dir == PORT_DIR_OUTPUT) {
if (pass_through)
v = PBOUTMXCTR0_ENDIAN_0123 |
PBOUTMXCTR0_MEMFMT_STREAM;
else
v = PBOUTMXCTR0_ENDIAN_3210 |
PBOUTMXCTR0_MEMFMT_2CH;
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);
}
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