// SPDX-License-Identifier: GPL-2.0
/*
* MediaTek 8365 ALSA SoC Audio DAI I2S Control
*
* Copyright (c) 2024 MediaTek Inc.
* Authors: Jia Zeng <[email protected]>
* Alexandre Mergnat <[email protected]>
*/
#include <linux/bitops.h>
#include <linux/regmap.h>
#include <sound/pcm_params.h>
#include "mt8365-afe-clk.h"
#include "mt8365-afe-common.h"
#define IIR_RATIOVER 9
#define IIR_INV_COEF 10
#define IIR_NO_NEED 11
struct mtk_afe_i2s_priv {
bool adda_link;
int i2s_out_on_ref_cnt;
int id;
int low_jitter_en;
int mclk_id;
int share_i2s_id;
unsigned int clk_id_in;
unsigned int clk_id_in_m_sel;
unsigned int clk_id_out;
unsigned int clk_id_out_m_sel;
unsigned int clk_in_mult;
unsigned int clk_out_mult;
unsigned int config_val_in;
unsigned int config_val_out;
unsigned int dynamic_bck;
unsigned int reg_off_in;
unsigned int reg_off_out;
};
/* This enum is merely for mtk_afe_i2s_priv declare */
enum {
DAI_I2S0 = 0,
DAI_I2S3,
DAI_I2S_NUM,
};
static const struct mtk_afe_i2s_priv mt8365_i2s_priv[DAI_I2S_NUM] = {
[DAI_I2S0] = {
.id = MT8365_AFE_IO_I2S,
.mclk_id = MT8365_I2S0_MCK,
.share_i2s_id = -1,
.clk_id_in = MT8365_CLK_AUD_I2S2_M,
.clk_id_out = MT8365_CLK_AUD_I2S1_M,
.clk_id_in_m_sel = MT8365_CLK_I2S2_M_SEL,
.clk_id_out_m_sel = MT8365_CLK_I2S1_M_SEL,
.clk_in_mult = 256,
.clk_out_mult = 256,
.adda_link = true,
.config_val_out = AFE_I2S_CON1_I2S2_TO_PAD,
.reg_off_in = AFE_I2S_CON2,
.reg_off_out = AFE_I2S_CON1,
},
[DAI_I2S3] = {
.id = MT8365_AFE_IO_2ND_I2S,
.mclk_id = MT8365_I2S3_MCK,
.share_i2s_id = -1,
.clk_id_in = MT8365_CLK_AUD_I2S0_M,
.clk_id_out = MT8365_CLK_AUD_I2S3_M,
.clk_id_in_m_sel = MT8365_CLK_I2S0_M_SEL,
.clk_id_out_m_sel = MT8365_CLK_I2S3_M_SEL,
.clk_in_mult = 256,
.clk_out_mult = 256,
.adda_link = false,
.config_val_in = AFE_I2S_CON_FROM_IO_MUX,
.reg_off_in = AFE_I2S_CON,
.reg_off_out = AFE_I2S_CON3,
},
};
static const u32 *get_iir_coef(unsigned int input_fs,
unsigned int output_fs, unsigned int *count)
{
static const u32 IIR_COEF_48_TO_44p1[30] = {
0x061fb0, 0x0bd256, 0x061fb0, 0xe3a3e6, 0xf0a300, 0x000003,
0x0e416d, 0x1bb577, 0x0e416d, 0xe59178, 0xf23637, 0x000003,
0x0c7d72, 0x189060, 0x0c7d72, 0xe96f09, 0xf505b2, 0x000003,
0x126054, 0x249143, 0x126054, 0xe1fc0c, 0xf4b20a, 0x000002,
0x000000, 0x323c85, 0x323c85, 0xf76d4e, 0x000000, 0x000002,
};
static const u32 IIR_COEF_44p1_TO_32[42] = {
0x0a6074, 0x0d237a, 0x0a6074, 0xdd8d6c, 0xe0b3f6, 0x000002,
0x0e41f8, 0x128d48, 0x0e41f8, 0xefc14e, 0xf12d7a, 0x000003,
0x0cfa60, 0x11e89c, 0x0cfa60, 0xf1b09e, 0xf27205, 0x000003,
0x15b69c, 0x20e7e4, 0x15b69c, 0xea799a, 0xe9314a, 0x000002,
0x0f79e2, 0x1a7064, 0x0f79e2, 0xf65e4a, 0xf03d8e, 0x000002,
0x10c34f, 0x1ffe4b, 0x10c34f, 0x0bbecb, 0xf2bc4b, 0x000001,
0x000000, 0x23b063, 0x23b063, 0x07335f, 0x000000, 0x000002,
};
static const u32 IIR_COEF_48_TO_32[42] = {
0x0a2a9b, 0x0a2f05, 0x0a2a9b, 0xe73873, 0xe0c525, 0x000002,
0x0dd4ad, 0x0e765a, 0x0dd4ad, 0xf49808, 0xf14844, 0x000003,
0x18a8cd, 0x1c40d0, 0x18a8cd, 0xed2aab, 0xe542ec, 0x000002,
0x13e044, 0x1a47c4, 0x13e044, 0xf44aed, 0xe9acc7, 0x000002,
0x1abd9c, 0x2a5429, 0x1abd9c, 0xff3441, 0xe0fc5f, 0x000001,
0x0d86db, 0x193e2e, 0x0d86db, 0x1a6f15, 0xf14507, 0x000001,
0x000000, 0x1f820c, 0x1f820c, 0x0a1b1f, 0x000000, 0x000002,
};
static const u32 IIR_COEF_32_TO_16[48] = {
0x122893, 0xffadd4, 0x122893, 0x0bc205, 0xc0ee1c, 0x000001,
0x1bab8a, 0x00750d, 0x1bab8a, 0x06a983, 0xe18a5c, 0x000002,
0x18f68e, 0x02706f, 0x18f68e, 0x0886a9, 0xe31bcb, 0x000002,
0x149c05, 0x054487, 0x149c05, 0x0bec31, 0xe5973e, 0x000002,
0x0ea303, 0x07f24a, 0x0ea303, 0x115ff9, 0xe967b6, 0x000002,
0x0823fd, 0x085531, 0x0823fd, 0x18d5b4, 0xee8d21, 0x000002,
0x06888e, 0x0acbbb, 0x06888e, 0x40b55c, 0xe76dce, 0x000001,
0x000000, 0x2d31a9, 0x2d31a9, 0x23ba4f, 0x000000, 0x000001,
};
static const u32 IIR_COEF_96_TO_44p1[48] = {
0x08b543, 0xfd80f4, 0x08b543, 0x0e2332, 0xe06ed0, 0x000002,
0x1b6038, 0xf90e7e, 0x1b6038, 0x0ec1ac, 0xe16f66, 0x000002,
0x188478, 0xfbb921, 0x188478, 0x105859, 0xe2e596, 0x000002,
0x13eff3, 0xffa707, 0x13eff3, 0x13455c, 0xe533b7, 0x000002,
0x0dc239, 0x03d458, 0x0dc239, 0x17f120, 0xe8b617, 0x000002,
0x0745f1, 0x05d790, 0x0745f1, 0x1e3d75, 0xed5f18, 0x000002,
0x05641f, 0x085e2b, 0x05641f, 0x48efd0, 0xe3e9c8, 0x000001,
0x000000, 0x28f632, 0x28f632, 0x273905, 0x000000, 0x000001,
};
static const u32 IIR_COEF_44p1_TO_16[48] = {
0x0998fb, 0xf7f925, 0x0998fb, 0x1e54a0, 0xe06605, 0x000002,
0x0d828e, 0xf50f97, 0x0d828e, 0x0f41b5, 0xf0a999, 0x000003,
0x17ebeb, 0xee30d8, 0x17ebeb, 0x1f48ca, 0xe2ae88, 0x000002,
0x12fab5, 0xf46ddc, 0x12fab5, 0x20cc51, 0xe4d068, 0x000002,
0x0c7ac6, 0xfbd00e, 0x0c7ac6, 0x2337da, 0xe8028c, 0x000002,
0x060ddc, 0x015b3e, 0x060ddc, 0x266754, 0xec21b6, 0x000002,
0x0407b5, 0x04f827, 0x0407b5, 0x52e3d0, 0xe0149f, 0x000001,
0x000000, 0x1f9521, 0x1f9521, 0x2ac116, 0x000000, 0x000001,
};
static const u32 IIR_COEF_48_TO_16[48] = {
0x0955ff, 0xf6544a, 0x0955ff, 0x2474e5, 0xe062e6, 0x000002,
0x0d4180, 0xf297f4, 0x0d4180, 0x12415b, 0xf0a3b0, 0x000003,
0x0ba079, 0xf4f0b0, 0x0ba079, 0x1285d3, 0xf1488b, 0x000003,
0x12247c, 0xf1033c, 0x12247c, 0x2625be, 0xe48e0d, 0x000002,
0x0b98e0, 0xf96d1a, 0x0b98e0, 0x27e79c, 0xe7798a, 0x000002,
0x055e3b, 0xffed09, 0x055e3b, 0x2a2e2d, 0xeb2854, 0x000002,
0x01a934, 0x01ca03, 0x01a934, 0x2c4fea, 0xee93ab, 0x000002,
0x000000, 0x1c46c5, 0x1c46c5, 0x2d37dc, 0x000000, 0x000001,
};
static const u32 IIR_COEF_96_TO_16[48] = {
0x0805a1, 0xf21ae3, 0x0805a1, 0x3840bb, 0xe02a2e, 0x000002,
0x0d5dd8, 0xe8f259, 0x0d5dd8, 0x1c0af6, 0xf04700, 0x000003,
0x0bb422, 0xec08d9, 0x0bb422, 0x1bfccc, 0xf09216, 0x000003,
0x08fde6, 0xf108be, 0x08fde6, 0x1bf096, 0xf10ae0, 0x000003,
0x0ae311, 0xeeeda3, 0x0ae311, 0x37c646, 0xe385f5, 0x000002,
0x044089, 0xfa7242, 0x044089, 0x37a785, 0xe56526, 0x000002,
0x00c75c, 0xffb947, 0x00c75c, 0x378ba3, 0xe72c5f, 0x000002,
0x000000, 0x0ef76e, 0x0ef76e, 0x377fda, 0x000000, 0x000001,
};
static const struct {
const u32 *coef;
unsigned int cnt;
} iir_coef_tbl_list[8] = {
/* 0: 0.9188 */
{ IIR_COEF_48_TO_44p1, ARRAY_SIZE(IIR_COEF_48_TO_44p1) },
/* 1: 0.7256 */
{ IIR_COEF_44p1_TO_32, ARRAY_SIZE(IIR_COEF_44p1_TO_32) },
/* 2: 0.6667 */
{ IIR_COEF_48_TO_32, ARRAY_SIZE(IIR_COEF_48_TO_32) },
/* 3: 0.5 */
{ IIR_COEF_32_TO_16, ARRAY_SIZE(IIR_COEF_32_TO_16) },
/* 4: 0.4594 */
{ IIR_COEF_96_TO_44p1, ARRAY_SIZE(IIR_COEF_96_TO_44p1) },
/* 5: 0.3628 */
{ IIR_COEF_44p1_TO_16, ARRAY_SIZE(IIR_COEF_44p1_TO_16) },
/* 6: 0.3333 */
{ IIR_COEF_48_TO_16, ARRAY_SIZE(IIR_COEF_48_TO_16) },
/* 7: 0.1667 */
{ IIR_COEF_96_TO_16, ARRAY_SIZE(IIR_COEF_96_TO_16) },
};
static const u32 freq_new_index[16] = {
0, 1, 2, 99, 3, 4, 5, 99, 6, 7, 8, 9, 10, 11, 12, 99
};
static const u32 iir_coef_tbl_matrix[13][13] = {
{/*0*/
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*1*/
1, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*2*/
2, 0, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*3*/
3, IIR_INV_COEF, IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*4*/
5, 3, IIR_INV_COEF, 2, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*5*/
6, 4, 3, 2, 0, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED
},
{/*6*/
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 3, IIR_INV_COEF,
IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*7*/
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 5, 3,
IIR_INV_COEF, 1, IIR_NO_NEED, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*8*/
7, IIR_INV_COEF, IIR_INV_COEF, 6, 4, 3, 2, 0, IIR_NO_NEED,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*9*/
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, 5, 3, IIR_INV_COEF,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{/*10*/
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 7, IIR_INV_COEF,
IIR_INV_COEF, 6, 4, 3, 0,
IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED
},
{ /*11*/
IIR_RATIOVER, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, 3, IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED
},
{/*12*/
IIR_RATIOVER, IIR_RATIOVER, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, 7, IIR_INV_COEF,
IIR_INV_COEF, 4, 3, 0, IIR_NO_NEED
},
};
const u32 *coef = NULL;
unsigned int cnt = 0;
u32 i = freq_new_index[input_fs];
u32 j = freq_new_index[output_fs];
if (i < 13 && j < 13) {
u32 k = iir_coef_tbl_matrix[i][j];
if (k >= IIR_NO_NEED) {
} else if (k == IIR_RATIOVER) {
} else if (k == IIR_INV_COEF) {
} else {
coef = iir_coef_tbl_list[k].coef;
cnt = iir_coef_tbl_list[k].cnt;
}
}
*count = cnt;
return coef;
}
static int mt8365_dai_set_config(struct mtk_base_afe *afe,
struct mtk_afe_i2s_priv *i2s_data,
bool is_input, unsigned int rate,
int bit_width)
{
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mt8365_be_dai_data *be =
&afe_priv->be_data[i2s_data->id - MT8365_AFE_BACKEND_BASE];
unsigned int val, reg_off;
int fs = mt8365_afe_fs_timing(rate);
if (fs < 0)
return -EINVAL;
val = AFE_I2S_CON_LOW_JITTER_CLK | AFE_I2S_CON_FORMAT_I2S;
val |= FIELD_PREP(AFE_I2S_CON_RATE_MASK, fs);
if (is_input) {
reg_off = i2s_data->reg_off_in;
if (i2s_data->adda_link)
val |= i2s_data->config_val_in;
} else {
reg_off = i2s_data->reg_off_out;
val |= i2s_data->config_val_in;
}
/* 1:bck=32lrck(16bit) or bck=64lrck(32bit) 0:fix bck=64lrck */
if (i2s_data->dynamic_bck) {
if (bit_width > 16)
val |= AFE_I2S_CON_WLEN_32BIT;
else
val &= ~(u32)AFE_I2S_CON_WLEN_32BIT;
} else {
val |= AFE_I2S_CON_WLEN_32BIT;
}
if ((be->fmt_mode & SND_SOC_DAIFMT_MASTER_MASK) ==
SND_SOC_DAIFMT_CBM_CFM) {
val |= AFE_I2S_CON_SRC_SLAVE;
val &= ~(u32)AFE_I2S_CON_FROM_IO_MUX;//from consys
}
regmap_update_bits(afe->regmap, reg_off, ~(u32)AFE_I2S_CON_EN, val);
if (i2s_data->adda_link && is_input)
regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x1);
return 0;
}
int mt8365_afe_set_i2s_out(struct mtk_base_afe *afe,
unsigned int rate, int bit_width)
{
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_i2s_priv *i2s_data =
afe_priv->dai_priv[MT8365_AFE_IO_I2S];
return mt8365_dai_set_config(afe, i2s_data, false, rate, bit_width);
}
static int mt8365_afe_set_2nd_i2s_asrc(struct mtk_base_afe *afe,
unsigned int rate_in,
unsigned int rate_out,
unsigned int width,
unsigned int mono,
int o16bit, int tracking)
{
int ifs, ofs = 0;
unsigned int val = 0;
unsigned int mask = 0;
const u32 *coef;
u32 iir_stage;
unsigned int coef_count = 0;
ifs = mt8365_afe_fs_timing(rate_in);
if (ifs < 0)
return -EINVAL;
ofs = mt8365_afe_fs_timing(rate_out);
if (ofs < 0)
return -EINVAL;
val = FIELD_PREP(O16BIT, o16bit) | FIELD_PREP(IS_MONO, mono);
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON2,
O16BIT | IS_MONO, val);
coef = get_iir_coef(ifs, ofs, &coef_count);
iir_stage = ((u32)coef_count / 6) - 1;
if (coef) {
unsigned int i;
/* CPU control IIR coeff SRAM */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON0,
COEFF_SRAM_CTRL, COEFF_SRAM_CTRL);
/* set to 0, IIR coeff SRAM addr */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON13,
0xffffffff, 0x0);
for (i = 0; i < coef_count; ++i)
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON12,
0xffffffff, coef[i]);
/* disable IIR coeff SRAM access */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON0,
COEFF_SRAM_CTRL,
~COEFF_SRAM_CTRL);
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON2,
CLR_IIR_HISTORY | IIR_EN | IIR_STAGE_MASK,
CLR_IIR_HISTORY | IIR_EN |
FIELD_PREP(IIR_STAGE_MASK, iir_stage));
} else {
/* disable IIR */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON2,
IIR_EN, ~IIR_EN);
}
/* CON3 setting (RX OFS) */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON3,
0x00FFFFFF, rx_frequency_palette(ofs));
/* CON4 setting (RX IFS) */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON4,
0x00FFFFFF, rx_frequency_palette(ifs));
/* CON5 setting */
if (tracking) {
val = CALI_64_CYCLE |
CALI_AUTORST |
AUTO_TUNE_FREQ5 |
COMP_FREQ_RES |
CALI_BP_DGL |
CALI_AUTO_RESTART |
CALI_USE_FREQ_OUT |
CALI_SEL_01;
mask = CALI_CYCLE_MASK |
CALI_AUTORST |
AUTO_TUNE_FREQ5 |
COMP_FREQ_RES |
CALI_SEL_MASK |
CALI_BP_DGL |
AUTO_TUNE_FREQ4 |
CALI_AUTO_RESTART |
CALI_USE_FREQ_OUT |
CALI_ON;
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON5,
mask, val);
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON5,
CALI_ON, CALI_ON);
} else {
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON5,
0xffffffff, 0x0);
}
/* CON6 setting fix 8125 */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON6,
0x0000ffff, 0x1FBD);
/* CON9 setting (RX IFS) */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON9,
0x000fffff, AutoRstThHi(ifs));
/* CON10 setting (RX IFS) */
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON10,
0x000fffff, AutoRstThLo(ifs));
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON0,
CHSET_STR_CLR, CHSET_STR_CLR);
return 0;
}
static int mt8365_afe_set_2nd_i2s_asrc_enable(struct mtk_base_afe *afe,
bool enable)
{
if (enable)
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON0,
ASM_ON, ASM_ON);
else
regmap_update_bits(afe->regmap, AFE_ASRC_2CH_CON0,
ASM_ON, ~ASM_ON);
return 0;
}
void mt8365_afe_set_i2s_out_enable(struct mtk_base_afe *afe, bool enable)
{
int i;
unsigned long flags;
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_i2s_priv *i2s_data = NULL;
for (i = 0; i < DAI_I2S_NUM; i++) {
if (mt8365_i2s_priv[i].adda_link)
i2s_data = afe_priv->dai_priv[mt8365_i2s_priv[i].id];
}
if (!i2s_data)
return;
spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
if (enable) {
i2s_data->i2s_out_on_ref_cnt++;
if (i2s_data->i2s_out_on_ref_cnt == 1)
regmap_update_bits(afe->regmap, AFE_I2S_CON1,
0x1, enable);
} else {
i2s_data->i2s_out_on_ref_cnt--;
if (i2s_data->i2s_out_on_ref_cnt == 0)
regmap_update_bits(afe->regmap, AFE_I2S_CON1,
0x1, enable);
else if (i2s_data->i2s_out_on_ref_cnt < 0)
i2s_data->i2s_out_on_ref_cnt = 0;
}
spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
}
static void mt8365_dai_set_enable(struct mtk_base_afe *afe,
struct mtk_afe_i2s_priv *i2s_data,
bool is_input, bool enable)
{
unsigned int reg_off;
if (is_input) {
reg_off = i2s_data->reg_off_in;
} else {
if (i2s_data->adda_link) {
mt8365_afe_set_i2s_out_enable(afe, enable);
return;
}
reg_off = i2s_data->reg_off_out;
}
regmap_update_bits(afe->regmap, reg_off,
0x1, enable);
}
static int mt8365_dai_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_i2s_priv *i2s_data = afe_priv->dai_priv[dai->id];
struct mt8365_be_dai_data *be = &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
bool i2s_in_slave =
(substream->stream == SNDRV_PCM_STREAM_CAPTURE) &&
((be->fmt_mode & SND_SOC_DAIFMT_MASTER_MASK) ==
SND_SOC_DAIFMT_CBM_CFM);
mt8365_afe_enable_main_clk(afe);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
clk_prepare_enable(afe_priv->clocks[i2s_data->clk_id_out]);
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && !i2s_in_slave)
clk_prepare_enable(afe_priv->clocks[i2s_data->clk_id_in]);
if (i2s_in_slave)
mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_I2S_IN);
return 0;
}
static void mt8365_dai_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_i2s_priv *i2s_data = afe_priv->dai_priv[dai->id];
struct mt8365_be_dai_data *be = &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
bool reset_i2s_out_change = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
bool reset_i2s_in_change = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
bool i2s_in_slave =
(substream->stream == SNDRV_PCM_STREAM_CAPTURE) &&
((be->fmt_mode & SND_SOC_DAIFMT_MASTER_MASK) ==
SND_SOC_DAIFMT_CBM_CFM);
if (be->prepared[substream->stream]) {
if (reset_i2s_out_change)
mt8365_dai_set_enable(afe, i2s_data, false, false);
if (reset_i2s_in_change)
mt8365_dai_set_enable(afe, i2s_data, true, false);
if (substream->runtime->rate % 8000)
mt8365_afe_disable_apll_associated_cfg(afe, MT8365_AFE_APLL1);
else
mt8365_afe_disable_apll_associated_cfg(afe, MT8365_AFE_APLL2);
if (reset_i2s_out_change)
be->prepared[SNDRV_PCM_STREAM_PLAYBACK] = false;
if (reset_i2s_in_change)
be->prepared[SNDRV_PCM_STREAM_CAPTURE] = false;
}
if (reset_i2s_out_change)
mt8365_afe_disable_clk(afe,
afe_priv->clocks[i2s_data->clk_id_out]);
if (reset_i2s_in_change && !i2s_in_slave)
mt8365_afe_disable_clk(afe,
afe_priv->clocks[i2s_data->clk_id_in]);
if (i2s_in_slave)
mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_I2S_IN);
mt8365_afe_disable_main_clk(afe);
}
static int mt8365_dai_i2s_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_i2s_priv *i2s_data = afe_priv->dai_priv[dai->id];
struct mt8365_be_dai_data *be = &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
bool apply_i2s_out_change = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
bool apply_i2s_in_change = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
unsigned int rate = substream->runtime->rate;
int bit_width = snd_pcm_format_width(substream->runtime->format);
int ret;
if (be->prepared[substream->stream]) {
dev_info(afe->dev, "%s '%s' prepared already\n",
__func__, snd_pcm_stream_str(substream));
return 0;
}
if (apply_i2s_out_change) {
ret = mt8365_dai_set_config(afe, i2s_data, false, rate, bit_width);
if (ret)
return ret;
}
if (apply_i2s_in_change) {
if ((be->fmt_mode & SND_SOC_DAIFMT_MASTER_MASK)
== SND_SOC_DAIFMT_CBM_CFM) {
ret = mt8365_afe_set_2nd_i2s_asrc(afe, 32000, rate,
(unsigned int)bit_width,
0, 0, 1);
if (ret < 0)
return ret;
}
ret = mt8365_dai_set_config(afe, i2s_data, true, rate, bit_width);
if (ret)
return ret;
}
if (rate % 8000)
mt8365_afe_enable_apll_associated_cfg(afe, MT8365_AFE_APLL1);
else
mt8365_afe_enable_apll_associated_cfg(afe, MT8365_AFE_APLL2);
if (apply_i2s_out_change) {
mt8365_afe_set_clk_parent(afe,
afe_priv->clocks[i2s_data->clk_id_out_m_sel],
((rate % 8000) ?
afe_priv->clocks[MT8365_CLK_AUD1] :
afe_priv->clocks[MT8365_CLK_AUD2]));
mt8365_afe_set_clk_rate(afe,
afe_priv->clocks[i2s_data->clk_id_out],
rate * i2s_data->clk_out_mult);
mt8365_dai_set_enable(afe, i2s_data, false, true);
be->prepared[SNDRV_PCM_STREAM_PLAYBACK] = true;
}
if (apply_i2s_in_change) {
mt8365_afe_set_clk_parent(afe,
afe_priv->clocks[i2s_data->clk_id_in_m_sel],
((rate % 8000) ?
afe_priv->clocks[MT8365_CLK_AUD1] :
afe_priv->clocks[MT8365_CLK_AUD2]));
mt8365_afe_set_clk_rate(afe,
afe_priv->clocks[i2s_data->clk_id_in],
rate * i2s_data->clk_in_mult);
mt8365_dai_set_enable(afe, i2s_data, true, true);
if ((be->fmt_mode & SND_SOC_DAIFMT_MASTER_MASK)
== SND_SOC_DAIFMT_CBM_CFM)
mt8365_afe_set_2nd_i2s_asrc_enable(afe, true);
be->prepared[SNDRV_PCM_STREAM_CAPTURE] = true;
}
return 0;
}
static int mt8365_afe_2nd_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
unsigned int width_val = params_width(params) > 16 ?
(AFE_CONN_24BIT_O00 | AFE_CONN_24BIT_O01) : 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
regmap_update_bits(afe->regmap, AFE_CONN_24BIT,
AFE_CONN_24BIT_O00 | AFE_CONN_24BIT_O01, width_val);
return 0;
}
static int mt8365_afe_2nd_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
struct mt8365_afe_private *afe_priv = afe->platform_priv;
struct mt8365_be_dai_data *be = &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
be->fmt_mode = 0;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
be->fmt_mode |= SND_SOC_DAIFMT_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
be->fmt_mode |= SND_SOC_DAIFMT_LEFT_J;
break;
default:
dev_err(afe->dev, "invalid audio format for 2nd i2s!\n");
return -EINVAL;
}
if (((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) &&
((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_IF) &&
((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_IB_NF) &&
((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_IB_IF)) {
dev_err(afe->dev, "invalid audio format for 2nd i2s!\n");
return -EINVAL;
}
be->fmt_mode |= (fmt & SND_SOC_DAIFMT_INV_MASK);
if (((fmt & SND_SOC_DAIFMT_MASTER_MASK) == SND_SOC_DAIFMT_CBM_CFM))
be->fmt_mode |= (fmt & SND_SOC_DAIFMT_MASTER_MASK);
return 0;
}
static const struct snd_soc_dai_ops mt8365_afe_i2s_ops = {
.startup = mt8365_dai_i2s_startup,
.shutdown = mt8365_dai_i2s_shutdown,
.prepare = mt8365_dai_i2s_prepare,
};
static const struct snd_soc_dai_ops mt8365_afe_2nd_i2s_ops = {
.startup = mt8365_dai_i2s_startup,
.shutdown = mt8365_dai_i2s_shutdown,
.hw_params = mt8365_afe_2nd_i2s_hw_params,
.prepare = mt8365_dai_i2s_prepare,
.set_fmt = mt8365_afe_2nd_i2s_set_fmt,
};
static struct snd_soc_dai_driver mtk_dai_i2s_driver[] = {
{
.name = "I2S",
.id = MT8365_AFE_IO_I2S,
.playback = {
.stream_name = "I2S Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.capture = {
.stream_name = "I2S Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.ops = &mt8365_afe_i2s_ops,
}, {
.name = "2ND I2S",
.id = MT8365_AFE_IO_2ND_I2S,
.playback = {
.stream_name = "2ND I2S Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.capture = {
.stream_name = "2ND I2S Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.ops = &mt8365_afe_2nd_i2s_ops,
}
};
static const char * const fmi2sin_text[] = {
"OPEN", "FM_2ND_I2S_IN"
};
static SOC_ENUM_SINGLE_VIRT_DECL(fmi2sin_enum, fmi2sin_text);
static const struct snd_kcontrol_new fmi2sin_mux =
SOC_DAPM_ENUM("FM 2ND I2S Source", fmi2sin_enum);
static const struct snd_kcontrol_new i2s_o03_o04_enable_ctl =
SOC_DAPM_SINGLE_VIRT("Switch", 1);
static const struct snd_soc_dapm_widget mtk_dai_i2s_widgets[] = {
SND_SOC_DAPM_SWITCH("I2S O03_O04", SND_SOC_NOPM, 0, 0,
&i2s_o03_o04_enable_ctl),
SND_SOC_DAPM_MUX("FM 2ND I2S Mux", SND_SOC_NOPM, 0, 0, &fmi2sin_mux),
SND_SOC_DAPM_INPUT("2ND I2S In"),
};
static const struct snd_soc_dapm_route mtk_dai_i2s_routes[] = {
{"I2S O03_O04", "Switch", "O03"},
{"I2S O03_O04", "Switch", "O04"},
{"I2S Playback", NULL, "I2S O03_O04"},
{"2ND I2S Playback", NULL, "O00"},
{"2ND I2S Playback", NULL, "O01"},
{"2ND I2S Capture", NULL, "2ND I2S In"},
{"FM 2ND I2S Mux", "FM_2ND_I2S_IN", "2ND I2S Capture"},
};
static int mt8365_dai_i2s_set_priv(struct mtk_base_afe *afe)
{
int i, ret;
struct mt8365_afe_private *afe_priv = afe->platform_priv;
for (i = 0; i < DAI_I2S_NUM; i++) {
ret = mt8365_dai_set_priv(afe, mt8365_i2s_priv[i].id,
sizeof(*afe_priv),
&mt8365_i2s_priv[i]);
if (ret)
return ret;
}
return 0;
}
int mt8365_dai_i2s_register(struct mtk_base_afe *afe)
{
struct mtk_base_afe_dai *dai;
dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
if (!dai)
return -ENOMEM;
list_add(&dai->list, &afe->sub_dais);
dai->dai_drivers = mtk_dai_i2s_driver;
dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_i2s_driver);
dai->dapm_widgets = mtk_dai_i2s_widgets;
dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_i2s_widgets);
dai->dapm_routes = mtk_dai_i2s_routes;
dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_i2s_routes);
/* set all dai i2s private data */
return mt8365_dai_i2s_set_priv(afe);
}
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