[PATCH v2] ASoC: rt1316: Add RT1316 SDCA vendor-specific driver
From: Shuming Fan shumingf@realtek.com
This is the initial amplifier driver for rt1316 SDCA version.
Signed-off-by: Shuming Fan shumingf@realtek.com --- sound/soc/codecs/Kconfig | 6 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/rt1316-sdw.c | 753 ++++++++++++++++++++++++++++++++++ sound/soc/codecs/rt1316-sdw.h | 55 +++ 4 files changed, 816 insertions(+) create mode 100644 sound/soc/codecs/rt1316-sdw.c create mode 100644 sound/soc/codecs/rt1316-sdw.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index e4cf14e66a51..ae833a54bcb3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -182,6 +182,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_RT711_SDW imply SND_SOC_RT715_SDW imply SND_SOC_RT1308_SDW + imply SND_SOC_RT1316_SDW imply SND_SOC_SGTL5000 imply SND_SOC_SI476X imply SND_SOC_SIMPLE_AMPLIFIER @@ -1144,6 +1145,11 @@ config SND_SOC_RT1308_SDW depends on I2C && SOUNDWIRE select REGMAP_SOUNDWIRE
+config SND_SOC_RT1316_SDW + tristate "Realtek RT1316 Codec - SDW" + depends on SOUNDWIRE + select REGMAP_SOUNDWIRE + config SND_SOC_RT5514 tristate depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 81357dc62ea0..1585bc1d9a25 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -173,6 +173,7 @@ snd-soc-rt1015p-objs := rt1015p.o snd-soc-rt1305-objs := rt1305.o snd-soc-rt1308-objs := rt1308.o snd-soc-rt1308-sdw-objs := rt1308-sdw.o +snd-soc-rt1316-sdw-objs := rt1316-sdw.o snd-soc-rt274-objs := rt274.o snd-soc-rt286-objs := rt286.o snd-soc-rt298-objs := rt298.o @@ -487,6 +488,7 @@ obj-$(CONFIG_SND_SOC_RT1015P) += snd-soc-rt1015p.o obj-$(CONFIG_SND_SOC_RT1305) += snd-soc-rt1305.o obj-$(CONFIG_SND_SOC_RT1308) += snd-soc-rt1308.o obj-$(CONFIG_SND_SOC_RT1308_SDW) += snd-soc-rt1308-sdw.o +obj-$(CONFIG_SND_SOC_RT1316_SDW) += snd-soc-rt1316-sdw.o obj-$(CONFIG_SND_SOC_RT274) += snd-soc-rt274.o obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o obj-$(CONFIG_SND_SOC_RT298) += snd-soc-rt298.o diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c new file mode 100644 index 000000000000..9cf21aab1f55 --- /dev/null +++ b/sound/soc/codecs/rt1316-sdw.c @@ -0,0 +1,753 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver +// +// Copyright(c) 2021 Realtek Semiconductor Corp. +// +// +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/pm_runtime.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include "rt1316-sdw.h" + +static const struct reg_default rt1316_reg_defaults[] = { + { 0x3004, 0x00 }, + { 0x3005, 0x00 }, + { 0x3206, 0x00 }, + { 0xc001, 0x00 }, + { 0xc002, 0x00 }, + { 0xc003, 0x00 }, + { 0xc004, 0x00 }, + { 0xc005, 0x00 }, + { 0xc006, 0x00 }, + { 0xc007, 0x00 }, + { 0xc008, 0x00 }, + { 0xc009, 0x00 }, + { 0xc00a, 0x00 }, + { 0xc00b, 0x00 }, + { 0xc00c, 0x00 }, + { 0xc00d, 0x00 }, + { 0xc00e, 0x00 }, + { 0xc00f, 0x00 }, + { 0xc010, 0xa5 }, + { 0xc011, 0x00 }, + { 0xc012, 0xff }, + { 0xc013, 0xff }, + { 0xc014, 0x40 }, + { 0xc015, 0x00 }, + { 0xc016, 0x00 }, + { 0xc017, 0x00 }, + { 0xc605, 0x30 }, + { 0xc700, 0x0a }, + { 0xc701, 0xaa }, + { 0xc702, 0x1a }, + { 0xc703, 0x0a }, + { 0xc710, 0x80 }, + { 0xc711, 0x00 }, + { 0xc712, 0x3e }, + { 0xc713, 0x80 }, + { 0xc714, 0x80 }, + { 0xc715, 0x06 }, + { 0xd101, 0x00 }, + { 0xd102, 0x30 }, + { 0xd103, 0x00 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, +}; + +static const struct reg_sequence rt1316_blind_write[] = { + { 0xc710, 0x17 }, + { 0xc711, 0x80 }, + { 0xc712, 0x26 }, + { 0xc713, 0x06 }, + { 0xc714, 0x80 }, + { 0xc715, 0x06 }, + { 0xc702, 0x0a }, + { 0xc703, 0x0a }, + { 0xc001, 0x45 }, + { 0xc003, 0x00 }, + { 0xc004, 0x11 }, + { 0xc005, 0x00 }, + { 0xc006, 0x00 }, + { 0xc106, 0x00 }, + { 0xc007, 0x11 }, + { 0xc008, 0x11 }, + { 0xc009, 0x00 }, + + { 0x2f0a, 0x00 }, + { 0xd101, 0xf0 }, + { 0xd103, 0x9b }, + { 0x2f36, 0x8e }, + { 0x3206, 0x80 }, + { 0x3211, 0x0b }, + { 0x3216, 0x06 }, + { 0xc614, 0x20 }, + { 0xc615, 0x0a }, + { 0xc616, 0x02 }, + { 0xc617, 0x00 }, + { 0xc60b, 0x10 }, + { 0xc60e, 0x05 }, + { 0xc102, 0x00 }, + { 0xc090, 0xb0 }, + { 0xc00f, 0x01 }, + { 0xc09c, 0x7b }, + + { 0xc602, 0x07 }, + { 0xc603, 0x07 }, + { 0xc0a3, 0x71 }, + { 0xc00b, 0x30 }, + { 0xc093, 0x80 }, + { 0xc09d, 0x80 }, + { 0xc0b0, 0x77 }, + { 0xc010, 0xa5 }, + { 0xc050, 0x83 }, + { 0x2f55, 0x03 }, + { 0x3217, 0xb5 }, + { 0x3202, 0x02 }, + + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 }, + + /* for IV sense */ + { 0x2232, 0x80 }, + { 0xc0b0, 0x77 }, + { 0xc011, 0x00 }, + { 0xc020, 0x00 }, + { 0xc023, 0x00 }, + { 0x3101, 0x00 }, + { 0x3004, 0xa0 }, + { 0x3005, 0xb1 }, + { 0xc007, 0x11 }, + { 0xc008, 0x11 }, + { 0xc009, 0x00 }, + { 0xc022, 0xd6 }, + { 0xc025, 0xd6 }, + + { 0xd001, 0x03 }, + { 0xd002, 0xbf }, + { 0xd003, 0x03 }, + { 0xd004, 0xbf }, +}; + +static bool rt1316_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x2f0a: + case 0x2f36: + case 0x3203 ... 0x320e: + case 0xc000 ... 0xc7b4: + case 0xcf00 ... 0xcf03: + case 0xd101 ... 0xd103: + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): + return true; + default: + return false; + } +} + +static bool rt1316_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0xc000: + case 0xc093: + case 0xc09d: + case 0xc0a3: + case 0xc201: + case 0xc427 ... 0xc428: + case 0xd102: + return true; + default: + return false; + } +} + +static const struct regmap_config rt1316_sdw_regmap = { + .reg_bits = 32, + .val_bits = 8, + .readable_reg = rt1316_readable_register, + .volatile_reg = rt1316_volatile_register, + .max_register = 0x4108ffff, + .reg_defaults = rt1316_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .use_single_read = true, + .use_single_write = true, +}; + +static int rt1316_read_prop(struct sdw_slave *slave) +{ + struct sdw_slave_prop *prop = &slave->prop; + int nval; + int i, j; + u32 bit; + unsigned long addr; + struct sdw_dpn_prop *dpn; + + prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY; + prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY; + prop->is_sdca = true; + + prop->paging_support = true; + + /* first we need to allocate memory for set bits in port lists */ + prop->source_ports = 0x04; /* BITMAP: 00000100 */ + prop->sink_ports = 0x2; /* BITMAP: 00000010 */ + + nval = hweight32(prop->source_ports); + prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval, + sizeof(*prop->src_dpn_prop), GFP_KERNEL); + if (!prop->src_dpn_prop) + return -ENOMEM; + + i = 0; + dpn = prop->src_dpn_prop; + addr = prop->source_ports; + for_each_set_bit(bit, &addr, 32) { + dpn[i].num = bit; + dpn[i].type = SDW_DPN_FULL; + dpn[i].simple_ch_prep_sm = true; + dpn[i].ch_prep_timeout = 10; + i++; + } + + /* do this again for sink now */ + nval = hweight32(prop->sink_ports); + prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval, + sizeof(*prop->sink_dpn_prop), GFP_KERNEL); + if (!prop->sink_dpn_prop) + return -ENOMEM; + + j = 0; + dpn = prop->sink_dpn_prop; + addr = prop->sink_ports; + for_each_set_bit(bit, &addr, 32) { + dpn[j].num = bit; + dpn[j].type = SDW_DPN_FULL; + dpn[j].simple_ch_prep_sm = true; + dpn[j].ch_prep_timeout = 10; + j++; + } + + /* set the timeout values */ + prop->clk_stop_timeout = 20; + + dev_dbg(&slave->dev, "%s\n", __func__); + + return 0; +} + +static int rt1316_io_init(struct device *dev, struct sdw_slave *slave) +{ + struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); + + if (rt1316->hw_init) + return 0; + + if (rt1316->first_hw_init) { + regcache_cache_only(rt1316->regmap, false); + regcache_cache_bypass(rt1316->regmap, true); + } else { + /* + * PM runtime is only enabled when a Slave reports as Attached + */ + + /* set autosuspend parameters */ + pm_runtime_set_autosuspend_delay(&slave->dev, 3000); + pm_runtime_use_autosuspend(&slave->dev); + + /* update count of parent 'active' children */ + pm_runtime_set_active(&slave->dev); + + /* make sure the device does not suspend immediately */ + pm_runtime_mark_last_busy(&slave->dev); + + pm_runtime_enable(&slave->dev); + } + + pm_runtime_get_noresume(&slave->dev); + + /* sw reset */ + regmap_write(rt1316->regmap, 0xc000, 0x02); + + /* initial settings - blind write */ + regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write, + ARRAY_SIZE(rt1316_blind_write)); + + if (rt1316->first_hw_init) { + regcache_cache_bypass(rt1316->regmap, false); + regcache_mark_dirty(rt1316->regmap); + } else + rt1316->first_hw_init = true; + + /* Mark Slave initialization complete */ + rt1316->hw_init = true; + + pm_runtime_mark_last_busy(&slave->dev); + pm_runtime_put_autosuspend(&slave->dev); + + dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); + return 0; +} + +static int rt1316_update_status(struct sdw_slave *slave, + enum sdw_slave_status status) +{ + struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev); + + /* Update the status */ + rt1316->status = status; + + if (status == SDW_SLAVE_UNATTACHED) + rt1316->hw_init = false; + + /* + * Perform initialization only if slave status is present and + * hw_init flag is false + */ + if (rt1316->hw_init || rt1316->status != SDW_SLAVE_ATTACHED) + return 0; + + /* perform I/O transfers required for Slave initialization */ + return rt1316_io_init(&slave->dev, slave); +} + +static int rt1316_classd_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); + unsigned char ps0 = 0x0, ps3 = 0x3; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps0); + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps0); + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps0); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps3); + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps3); + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps3); + break; + + default: + break; + } + + return 0; +} + +static int rt1316_pde24_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); + unsigned char ps0 = 0x0, ps3 = 0x3; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps0); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_write(rt1316->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, + RT1316_SDCA_CTL_REQ_POWER_STATE, 0), + ps3); + break; + } + return 0; +} + +static const char * const rt1316_rx_data_ch_select[] = { + "L,R", + "L,L", + "L,R", + "L,L+R", + "R,L", + "R,R", + "R,L+R", + "L+R,L", + "L+R,R", + "L+R,L+R", +}; + +static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0, + rt1316_rx_data_ch_select); + +static const struct snd_kcontrol_new rt1316_snd_controls[] = { + + /* I2S Data Channel Selection */ + SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum), + + /* XU24 Bypass Control */ + SOC_SINGLE("XU24 Bypass Switch", + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0), + + /* Left/Right IV tag */ + SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0), + SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0), + SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0), + SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0), + + /* IV mixer Control */ + SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1), + SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1), +}; + +static const struct snd_kcontrol_new rt1316_sto_dac_l = + SOC_DAPM_SINGLE_AUTODISABLE("Switch", + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), + 0, 1, 1); + +static const struct snd_kcontrol_new rt1316_sto_dac_r = + SOC_DAPM_SINGLE_AUTODISABLE("Switch", + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), + 0, 1, 1); + +static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = { + /* Audio Interface */ + SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0), + + /* Digital Interface */ + SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_l), + SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_r), + + /* Output Lines */ + SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, + rt1316_classd_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_OUTPUT("SPOL"), + SND_SOC_DAPM_OUTPUT("SPOR"), + + SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0, + rt1316_pde24_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_SIGGEN("I Gen"), + SND_SOC_DAPM_SIGGEN("V Gen"), +}; + +static const struct snd_soc_dapm_route rt1316_dapm_routes[] = { + { "DAC", NULL, "DP1RX" }, + { "DAC L", "Switch", "DAC" }, + { "DAC R", "Switch", "DAC" }, + { "CLASS D", NULL, "DAC L" }, + { "CLASS D", NULL, "DAC R" }, + { "SPOL", NULL, "CLASS D" }, + { "SPOR", NULL, "CLASS D" }, + + { "I Sense", NULL, "I Gen" }, + { "V Sense", NULL, "V Gen" }, + { "I Sense", NULL, "PDE 24" }, + { "V Sense", NULL, "PDE 24" }, + { "DP2TX", NULL, "I Sense" }, + { "DP2TX", NULL, "V Sense" }, +}; + +static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, + int direction) +{ + struct sdw_stream_data *stream; + + if (!sdw_stream) + return 0; + + stream = kzalloc(sizeof(*stream), GFP_KERNEL); + if (!stream) + return -ENOMEM; + + stream->sdw_stream = sdw_stream; + + /* Use tx_mask or rx_mask to configure stream tag and set dma_data */ + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + dai->playback_dma_data = stream; + else + dai->capture_dma_data = stream; + + return 0; +} + +static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct sdw_stream_data *stream; + + stream = snd_soc_dai_get_dma_data(dai, substream); + snd_soc_dai_set_dma_data(dai, substream, NULL); + kfree(stream); +} + +static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct rt1316_sdw_priv *rt1316 = + snd_soc_component_get_drvdata(component); + struct sdw_stream_config stream_config; + struct sdw_port_config port_config; + enum sdw_data_direction direction; + struct sdw_stream_data *stream; + int retval, port, num_channels, ch_mask; + + dev_dbg(dai->dev, "%s %s", __func__, dai->name); + stream = snd_soc_dai_get_dma_data(dai, substream); + + if (!stream) + return -EINVAL; + + if (!rt1316->sdw_slave) + return -EINVAL; + + /* SoundWire specific configuration */ + /* port 1 for playback */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + direction = SDW_DATA_DIR_RX; + port = 1; + } else { + direction = SDW_DATA_DIR_TX; + port = 2; + } + + num_channels = params_channels(params); + ch_mask = (1 << num_channels) - 1; + + stream_config.frame_rate = params_rate(params); + stream_config.ch_count = num_channels; + stream_config.bps = snd_pcm_format_width(params_format(params)); + stream_config.direction = direction; + + port_config.ch_mask = ch_mask; + port_config.num = port; + + retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config, + &port_config, 1, stream->sdw_stream); + if (retval) { + dev_err(dai->dev, "Unable to configure port\n"); + return retval; + } + + return 0; +} + +static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct rt1316_sdw_priv *rt1316 = + snd_soc_component_get_drvdata(component); + struct sdw_stream_data *stream = + snd_soc_dai_get_dma_data(dai, substream); + + if (!rt1316->sdw_slave) + return -EINVAL; + + sdw_stream_remove_slave(rt1316->sdw_slave, stream->sdw_stream); + return 0; +} + +/* + * slave_ops: callbacks for get_clock_stop_mode, clock_stop and + * port_prep are not defined for now + */ +static struct sdw_slave_ops rt1316_slave_ops = { + .read_prop = rt1316_read_prop, + .update_status = rt1316_update_status, +}; + +static const struct snd_soc_component_driver soc_component_sdw_rt1316 = { + .controls = rt1316_snd_controls, + .num_controls = ARRAY_SIZE(rt1316_snd_controls), + .dapm_widgets = rt1316_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets), + .dapm_routes = rt1316_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes), +}; + +static const struct snd_soc_dai_ops rt1316_aif_dai_ops = { + .hw_params = rt1316_sdw_hw_params, + .hw_free = rt1316_sdw_pcm_hw_free, + .set_sdw_stream = rt1316_set_sdw_stream, + .shutdown = rt1316_sdw_shutdown, +}; + +#define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000 +#define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE) + +static struct snd_soc_dai_driver rt1316_sdw_dai[] = { + { + .name = "rt1316-aif", + .playback = { + .stream_name = "DP1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = RT1316_STEREO_RATES, + .formats = RT1316_FORMATS, + }, + .capture = { + .stream_name = "DP2 Capture", + .channels_min = 1, + .channels_max = 2, + .rates = RT1316_STEREO_RATES, + .formats = RT1316_FORMATS, + }, + .ops = &rt1316_aif_dai_ops, + }, +}; + +static int rt1316_sdw_init(struct device *dev, struct regmap *regmap, + struct sdw_slave *slave) +{ + struct rt1316_sdw_priv *rt1316; + int ret; + + rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL); + if (!rt1316) + return -ENOMEM; + + dev_set_drvdata(dev, rt1316); + rt1316->sdw_slave = slave; + rt1316->regmap = regmap; + + /* + * Mark hw_init to false + * HW init will be performed when device reports present + */ + rt1316->hw_init = false; + rt1316->first_hw_init = false; + + ret = devm_snd_soc_register_component(dev, + &soc_component_sdw_rt1316, + rt1316_sdw_dai, + ARRAY_SIZE(rt1316_sdw_dai)); + + dev_dbg(&slave->dev, "%s\n", __func__); + + return ret; +} + +static int rt1316_sdw_probe(struct sdw_slave *slave, + const struct sdw_device_id *id) +{ + struct regmap *regmap; + + /* Regmap Initialization */ + regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap); + if (!regmap) + return -EINVAL; + + return rt1316_sdw_init(&slave->dev, regmap, slave); +} + +static const struct sdw_device_id rt1316_id[] = { + SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0), + {}, +}; +MODULE_DEVICE_TABLE(sdw, rt1316_id); + +static int __maybe_unused rt1316_dev_suspend(struct device *dev) +{ + struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); + + if (!rt1316->hw_init) + return 0; + + regcache_cache_only(rt1316->regmap, true); + + return 0; +} + +#define RT1316_PROBE_TIMEOUT 5000 + +static int __maybe_unused rt1316_dev_resume(struct device *dev) +{ + struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); + unsigned long time; + + if (!rt1316->hw_init) + return 0; + + if (!slave->unattach_request) + goto regmap_sync; + + time = wait_for_completion_timeout(&slave->initialization_complete, + msecs_to_jiffies(RT1316_PROBE_TIMEOUT)); + if (!time) { + dev_err(&slave->dev, "Initialization not complete, timed out\n"); + return -ETIMEDOUT; + } + +regmap_sync: + slave->unattach_request = 0; + regcache_cache_only(rt1316->regmap, false); + regcache_sync(rt1316->regmap); + + return 0; +} + +static const struct dev_pm_ops rt1316_pm = { + SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume) + SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL) +}; + +static struct sdw_driver rt1316_sdw_driver = { + .driver = { + .name = "rt1316-sdca", + .owner = THIS_MODULE, + .pm = &rt1316_pm, + }, + .probe = rt1316_sdw_probe, + .ops = &rt1316_slave_ops, + .id_table = rt1316_id, +}; +module_sdw_driver(rt1316_sdw_driver); + +MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW"); +MODULE_AUTHOR("Shuming Fan shumingf@realtek.com"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/rt1316-sdw.h b/sound/soc/codecs/rt1316-sdw.h new file mode 100644 index 000000000000..cbcdaa8f8cfa --- /dev/null +++ b/sound/soc/codecs/rt1316-sdw.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * rt1316-sdw.h -- RT1316 SDCA ALSA SoC audio driver header + * + * Copyright(c) 2021 Realtek Semiconductor Corp. + */ + +#ifndef __RT1316_SDW_H__ +#define __RT1316_SDW_H__ + +#include <linux/regmap.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_type.h> +#include <linux/soundwire/sdw_registers.h> +#include <sound/soc.h> + +/* RT1316 SDCA Control - function number */ +#define FUNC_NUM_SMART_AMP 0x04 + +/* RT1316 SDCA entity */ +#define RT1316_SDCA_ENT_PDE23 0x31 +#define RT1316_SDCA_ENT_PDE27 0x32 +#define RT1316_SDCA_ENT_PDE22 0x33 +#define RT1316_SDCA_ENT_PDE24 0x34 +#define RT1316_SDCA_ENT_XU24 0x24 +#define RT1316_SDCA_ENT_FU21 0x03 +#define RT1316_SDCA_ENT_UDMPU21 0x02 + +/* RT1316 SDCA control */ +#define RT1316_SDCA_CTL_SAMPLE_FREQ_INDEX 0x10 +#define RT1316_SDCA_CTL_REQ_POWER_STATE 0x01 +#define RT1316_SDCA_CTL_BYPASS 0x01 +#define RT1316_SDCA_CTL_FU_MUTE 0x01 +#define RT1316_SDCA_CTL_FU_VOLUME 0x02 +#define RT1316_SDCA_CTL_UDMPU_CLUSTER 0x10 + +/* RT1316 SDCA channel */ +#define CH_L 0x01 +#define CH_R 0x02 + +struct rt1316_sdw_priv { + struct snd_soc_component *component; + struct regmap *regmap; + struct sdw_slave *sdw_slave; + enum sdw_slave_status status; + struct sdw_bus_params params; + bool hw_init; + bool first_hw_init; +}; + +struct sdw_stream_data { + struct sdw_stream_runtime *sdw_stream; +}; + +#endif /* __RT1316_SDW_H__ */
Dne 18. 02. 21 v 10:12 shumingf@realtek.com napsal(a):
- SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_l),
- SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_r),
Truly, I don't understand the reason to have a separate L/R switch when we can map this functionality to one stereo (multichannel) control.
It's an issue for all ASoC drivers. We should consider to be more strict for the new ones.
Jaroslav
On 2/18/21 3:44 AM, Jaroslav Kysela wrote:
Dne 18. 02. 21 v 10:12 shumingf@realtek.com napsal(a):
- SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_l),
- SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_r),
Truly, I don't understand the reason to have a separate L/R switch when we can map this functionality to one stereo (multichannel) control.
It's an issue for all ASoC drivers. We should consider to be more strict for the new ones.
At the same time we have to recognize that the L/R notion only makes sense at the input to the amplifier. The amplifier may recombine channels to deal with orientation/posture or simply select a specific input, and drive different speakers (e.g. tweeter/woofer). Dac L and R are often an abuse of language when the system have multi-way speakers. Exhibit A for this is the TigerLake device with 2 RT1316 and 4 speakers. L/R don't make sense to describe amplifier outputs and speaker position.
There's also a difficult balance to be found between exposing all the capabilities of the device, and making integration and userspace simpler. I2C/IS2 and SoundWire devices tend to expose more controls than HDaudio ones, and that was driven by a desire to optimize as much as possible. Some devices are designed with limited number of controls, others provide hooks to tweak everything in the system by exposing literally have thousands of controls. I don't think we should pick and choose which controls we want to expose, that's the codec vendor's job IMHO (or the device class definition when standard and applicable)
Dne 18. 02. 21 v 15:49 Pierre-Louis Bossart napsal(a):
On 2/18/21 3:44 AM, Jaroslav Kysela wrote:
Dne 18. 02. 21 v 10:12 shumingf@realtek.com napsal(a):
- SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_l),
- SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_r),
Truly, I don't understand the reason to have a separate L/R switch when we can map this functionality to one stereo (multichannel) control.
It's an issue for all ASoC drivers. We should consider to be more strict for the new ones.
At the same time we have to recognize that the L/R notion only makes sense at the input to the amplifier. The amplifier may recombine channels to deal with orientation/posture or simply select a specific input, and drive different speakers (e.g. tweeter/woofer). Dac L and R are often an abuse of language when the system have multi-way speakers. Exhibit A for this is the TigerLake device with 2 RT1316 and 4 speakers. L/R don't make sense to describe amplifier outputs and speaker position.
My point is a bit different. If the channels are supposed to be used together (which usually mean a kind of the stereo operation in this case), it does not make much sense to split this control to separate single channels. It's just a waste of resources.
The current patch code:
one channel control "DAC L" one channel control "DAC R"
The one control:
two channels control "DAC"
From the user space POV, the only difference is the value write operation
(both channels are set using one ioctl).
There's also a difficult balance to be found between exposing all the capabilities of the device, and making integration and userspace simpler. I2C/IS2 and SoundWire devices tend to expose more controls than HDaudio ones, and that was driven by a desire to optimize as much as possible. Some devices are designed with limited number of controls, others provide hooks to tweak everything in the system by exposing literally have thousands of controls. I don't think we should pick and choose which controls we want to expose, that's the codec vendor's job IMHO (or the device class definition when standard and applicable)
The problem with ASoC tree is that many of those controls are not supposed to be configured/used by the end user, but in UCM or other higher level layer configuration, because they're a part of the hw/driver setup.
I think that we should classify those controls so the standard user space tools can hide them, but it's another problem.
Jaroslav
On Sat, Feb 20, 2021 at 06:55:06PM +0100, Jaroslav Kysela wrote:
The problem with ASoC tree is that many of those controls are not supposed to be configured/used by the end user, but in UCM or other higher level layer configuration, because they're a part of the hw/driver setup.
I think that we should classify those controls so the standard user space tools can hide them, but it's another problem.
Well, as has been discussed in the past ideally ALSA would have a mechanism for exposing topology information and userspace would have some chance of picking which controls make sense for use on non-trivial hardware. The particular set of controls that it makes sense to adjust from userspace is going to vary depending on the use case, it's not something that can be decided in the kernel.
On 2/20/21 11:55 AM, Jaroslav Kysela wrote:
Dne 18. 02. 21 v 15:49 Pierre-Louis Bossart napsal(a):
On 2/18/21 3:44 AM, Jaroslav Kysela wrote:
Dne 18. 02. 21 v 10:12 shumingf@realtek.com napsal(a):
- SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_l),
- SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac_r),
Truly, I don't understand the reason to have a separate L/R switch when we can map this functionality to one stereo (multichannel) control.
It's an issue for all ASoC drivers. We should consider to be more strict for the new ones.
At the same time we have to recognize that the L/R notion only makes sense at the input to the amplifier. The amplifier may recombine channels to deal with orientation/posture or simply select a specific input, and drive different speakers (e.g. tweeter/woofer). Dac L and R are often an abuse of language when the system have multi-way speakers. Exhibit A for this is the TigerLake device with 2 RT1316 and 4 speakers. L/R don't make sense to describe amplifier outputs and speaker position.
My point is a bit different. If the channels are supposed to be used together (which usually mean a kind of the stereo operation in this case), it does not make much sense to split this control to separate single channels. It's just a waste of resources.
In this case the control affects analog resources and speaker outputs, so in this case I will assume that it's perfectly ok to have a single speaker. Put differently, assuming that the two channels will always be used is not quite right.
The current patch code:
one channel control "DAC L" one channel control "DAC R"
The one control:
two channels control "DAC"
From the user space POV, the only difference is the value write operation (both channels are set using one ioctl).
SDCA mandates that all devices are able to consume stereo data, even if there is a single speaker connected. It's useful IMHO if you provide controls so that one of the two DACs is switched off.
There's also a difficult balance to be found between exposing all the capabilities of the device, and making integration and userspace simpler. I2C/IS2 and SoundWire devices tend to expose more controls than HDaudio ones, and that was driven by a desire to optimize as much as possible. Some devices are designed with limited number of controls, others provide hooks to tweak everything in the system by exposing literally have thousands of controls. I don't think we should pick and choose which controls we want to expose, that's the codec vendor's job IMHO (or the device class definition when standard and applicable)
The problem with ASoC tree is that many of those controls are not supposed to be configured/used by the end user, but in UCM or other higher level layer configuration, because they're a part of the hw/driver setup.
I think that we should classify those controls so the standard user space tools can hide them, but it's another problem.
Jaroslav
participants (4)
-
Jaroslav Kysela -
Mark Brown -
Pierre-Louis Bossart -
shumingf＠realtek.com