diff options
Diffstat (limited to 'sound/soc/codecs/rt1318-sdw.c')
| -rw-r--r-- | sound/soc/codecs/rt1318-sdw.c | 870 |
1 files changed, 870 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt1318-sdw.c b/sound/soc/codecs/rt1318-sdw.c new file mode 100644 index 0000000000..ff364bde4a --- /dev/null +++ b/sound/soc/codecs/rt1318-sdw.c @@ -0,0 +1,870 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// rt1318-sdw.c -- rt1318 SDCA ALSA SoC amplifier audio driver +// +// Copyright(c) 2022 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 <linux/dmi.h> +#include <linux/firmware.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include "rt1318-sdw.h" + +static const struct reg_sequence rt1318_blind_write[] = { + { 0xc001, 0x43 }, + { 0xc003, 0xa2 }, + { 0xc004, 0x44 }, + { 0xc005, 0x44 }, + { 0xc006, 0x33 }, + { 0xc007, 0x64 }, + { 0xc320, 0x20 }, + { 0xf203, 0x18 }, + { 0xf211, 0x00 }, + { 0xf212, 0x26 }, + { 0xf20d, 0x17 }, + { 0xf214, 0x06 }, + { 0xf20e, 0x00 }, + { 0xf223, 0x7f }, + { 0xf224, 0xdb }, + { 0xf225, 0xee }, + { 0xf226, 0x3f }, + { 0xf227, 0x0f }, + { 0xf21a, 0x78 }, + { 0xf242, 0x3c }, + { 0xc321, 0x0b }, + { 0xc200, 0xd8 }, + { 0xc201, 0x27 }, + { 0xc202, 0x0f }, + { 0xf800, 0x20 }, + { 0xdf00, 0x10 }, + { 0xdf5f, 0x01 }, + { 0xdf60, 0xa7 }, + { 0xc400, 0x0e }, + { 0xc401, 0x43 }, + { 0xc402, 0xe0 }, + { 0xc403, 0x00 }, + { 0xc404, 0x4c }, + { 0xc407, 0x02 }, + { 0xc408, 0x3f }, + { 0xc300, 0x01 }, + { 0xc206, 0x78 }, + { 0xc203, 0x84 }, + { 0xc120, 0xc0 }, + { 0xc121, 0x03 }, + { 0xe000, 0x88 }, + { 0xc321, 0x09 }, + { 0xc322, 0x01 }, + { 0xe706, 0x0f }, + { 0xe707, 0x30 }, + { 0xe806, 0x0f }, + { 0xe807, 0x30 }, + { 0xed00, 0xb0 }, + { 0xce04, 0x02 }, + { 0xce05, 0x63 }, + { 0xce06, 0x68 }, + { 0xce07, 0x07 }, + { 0xcf04, 0x02 }, + { 0xcf05, 0x63 }, + { 0xcf06, 0x68 }, + { 0xcf07, 0x07 }, + { 0xce60, 0xe3 }, + { 0xc130, 0x51 }, + { 0xf102, 0x00 }, + { 0xf103, 0x00 }, + { 0xf104, 0xf5 }, + { 0xf105, 0x06 }, + { 0xf109, 0x9b }, + { 0xf10a, 0x0b }, + { 0xf10b, 0x4c }, + { 0xf10b, 0x5c }, + { 0xf102, 0x00 }, + { 0xf103, 0x00 }, + { 0xf104, 0xf5 }, + { 0xf105, 0x0b }, + { 0xf109, 0x03 }, + { 0xf10a, 0x0b }, + { 0xf10b, 0x4c }, + { 0xf10b, 0x5c }, + { 0xf102, 0x00 }, + { 0xf103, 0x00 }, + { 0xf104, 0xf5 }, + { 0xf105, 0x0c }, + { 0xf109, 0x7f }, + { 0xf10a, 0x0b }, + { 0xf10b, 0x4c }, + { 0xf10b, 0x5c }, + + { 0xe604, 0x00 }, + { 0xdb00, 0x0c }, + { 0xdd00, 0x0c }, + { 0xdc19, 0x00 }, + { 0xdc1a, 0xff }, + { 0xdc1b, 0xff }, + { 0xdc1c, 0xff }, + { 0xdc1d, 0x00 }, + { 0xdc1e, 0x00 }, + { 0xdc1f, 0x00 }, + { 0xdc20, 0xff }, + { 0xde19, 0x00 }, + { 0xde1a, 0xff }, + { 0xde1b, 0xff }, + { 0xde1c, 0xff }, + { 0xde1d, 0x00 }, + { 0xde1e, 0x00 }, + { 0xde1f, 0x00 }, + { 0xde20, 0xff }, + { 0xdb32, 0x00 }, + { 0xdd32, 0x00 }, + { 0xdb33, 0x0a }, + { 0xdd33, 0x0a }, + { 0xdb34, 0x1a }, + { 0xdd34, 0x1a }, + { 0xdb17, 0xef }, + { 0xdd17, 0xef }, + { 0xdba7, 0x00 }, + { 0xdba8, 0x64 }, + { 0xdda7, 0x00 }, + { 0xdda8, 0x64 }, + { 0xdb19, 0x40 }, + { 0xdd19, 0x40 }, + { 0xdb00, 0x4c }, + { 0xdb01, 0x79 }, + { 0xdd01, 0x79 }, + { 0xdb04, 0x05 }, + { 0xdb05, 0x03 }, + { 0xdd04, 0x05 }, + { 0xdd05, 0x03 }, + { 0xdbbb, 0x09 }, + { 0xdbbc, 0x30 }, + { 0xdbbd, 0xf0 }, + { 0xdbbe, 0xf1 }, + { 0xddbb, 0x09 }, + { 0xddbc, 0x30 }, + { 0xddbd, 0xf0 }, + { 0xddbe, 0xf1 }, + { 0xdb01, 0x79 }, + { 0xdd01, 0x79 }, + { 0xdc52, 0xef }, + { 0xde52, 0xef }, + { 0x2f55, 0x22 }, +}; + +static const struct reg_default rt1318_reg_defaults[] = { + { 0x3000, 0x00 }, + { 0x3004, 0x01 }, + { 0x3005, 0x23 }, + { 0x3202, 0x00 }, + { 0x3203, 0x01 }, + { 0x3206, 0x00 }, + { 0xc000, 0x00 }, + { 0xc001, 0x43 }, + { 0xc003, 0x22 }, + { 0xc004, 0x44 }, + { 0xc005, 0x44 }, + { 0xc006, 0x33 }, + { 0xc007, 0x64 }, + { 0xc008, 0x05 }, + { 0xc00a, 0xfc }, + { 0xc00b, 0x0f }, + { 0xc00c, 0x0e }, + { 0xc00d, 0xef }, + { 0xc00e, 0xe5 }, + { 0xc00f, 0xff }, + { 0xc120, 0xc0 }, + { 0xc121, 0x00 }, + { 0xc122, 0x00 }, + { 0xc123, 0x14 }, + { 0xc125, 0x00 }, + { 0xc200, 0x00 }, + { 0xc201, 0x00 }, + { 0xc202, 0x00 }, + { 0xc203, 0x04 }, + { 0xc204, 0x00 }, + { 0xc205, 0x00 }, + { 0xc206, 0x68 }, + { 0xc207, 0x70 }, + { 0xc208, 0x00 }, + { 0xc20a, 0x00 }, + { 0xc20b, 0x01 }, + { 0xc20c, 0x7f }, + { 0xc20d, 0x01 }, + { 0xc20e, 0x7f }, + { 0xc300, 0x00 }, + { 0xc301, 0x00 }, + { 0xc303, 0x80 }, + { 0xc320, 0x00 }, + { 0xc321, 0x09 }, + { 0xc322, 0x02 }, + { 0xc410, 0x04 }, + { 0xc430, 0x00 }, + { 0xc431, 0x00 }, + { 0xca00, 0x10 }, + { 0xca01, 0x00 }, + { 0xca02, 0x0b }, + { 0xca10, 0x10 }, + { 0xca11, 0x00 }, + { 0xca12, 0x0b }, + { 0xdd93, 0x00 }, + { 0xdd94, 0x64 }, + { 0xe300, 0xa0 }, + { 0xed00, 0x80 }, + { 0xed01, 0x0f }, + { 0xed02, 0xff }, + { 0xed03, 0x00 }, + { 0xed04, 0x00 }, + { 0xed05, 0x0f }, + { 0xed06, 0xff }, + { 0xf010, 0x10 }, + { 0xf011, 0xec }, + { 0xf012, 0x68 }, + { 0xf013, 0x21 }, + { 0xf800, 0x00 }, + { 0xf801, 0x12 }, + { 0xf802, 0xe0 }, + { 0xf803, 0x2f }, + { 0xf804, 0x00 }, + { 0xf805, 0x00 }, + { 0xf806, 0x07 }, + { 0xf807, 0xff }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_UDMPU21, RT1318_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_L), 0x01 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_R), 0x01 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_PDE23, RT1318_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, + { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_CS21, RT1318_SDCA_CTL_SAMPLE_FREQ_INDEX, 0), 0x09 }, +}; + +static bool rt1318_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x2f55: + case 0x3000: + case 0x3004 ... 0x3005: + case 0x3202 ... 0x3203: + case 0x3206: + case 0xc000 ... 0xc00f: + case 0xc120 ... 0xc125: + case 0xc200 ... 0xc20e: + case 0xc300 ... 0xc303: + case 0xc320 ... 0xc322: + case 0xc410: + case 0xc430 ... 0xc431: + case 0xca00 ... 0xca02: + case 0xca10 ... 0xca12: + case 0xcb00 ... 0xcb0b: + case 0xcc00 ... 0xcce5: + case 0xcd00 ... 0xcde5: + case 0xce00 ... 0xce6a: + case 0xcf00 ... 0xcf53: + case 0xd000 ... 0xd0cc: + case 0xd100 ... 0xd1b9: + case 0xdb00 ... 0xdc53: + case 0xdd00 ... 0xde53: + case 0xdf00 ... 0xdf6b: + case 0xe300: + case 0xeb00 ... 0xebcc: + case 0xec00 ... 0xecb9: + case 0xed00 ... 0xed06: + case 0xf010 ... 0xf014: + case 0xf800 ... 0xf807: + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_UDMPU21, RT1318_SDCA_CTL_UDMPU_CLUSTER, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_L): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_R): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_PDE23, RT1318_SDCA_CTL_REQ_POWER_STATE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_CS21, RT1318_SDCA_CTL_SAMPLE_FREQ_INDEX, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_SAPU, RT1318_SDCA_CTL_SAPU_PROTECTION_MODE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_SAPU, RT1318_SDCA_CTL_SAPU_PROTECTION_STATUS, 0): + return true; + default: + return false; + } +} + +static bool rt1318_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x2f55: + case 0x3000 ... 0x3001: + case 0xc000: + case 0xc301: + case 0xc410: + case 0xc430 ... 0xc431: + case 0xdb06: + case 0xdb12: + case 0xdb1d ... 0xdb1f: + case 0xdb35: + case 0xdb37: + case 0xdb8a ... 0xdb92: + case 0xdbc5 ... 0xdbc8: + case 0xdc2b ... 0xdc49: + case 0xdd0b: + case 0xdd12: + case 0xdd1d ... 0xdd1f: + case 0xdd35: + case 0xdd8a ... 0xdd92: + case 0xddc5 ... 0xddc8: + case 0xde2b ... 0xde44: + case 0xdf4a ... 0xdf55: + case 0xe224 ... 0xe23b: + case 0xea01: + case 0xebc5: + case 0xebc8: + case 0xebcb ... 0xebcc: + case 0xed03 ... 0xed06: + case 0xf010 ... 0xf014: + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_SAPU, RT1318_SDCA_CTL_SAPU_PROTECTION_MODE, 0): + case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_SAPU, RT1318_SDCA_CTL_SAPU_PROTECTION_STATUS, 0): + return true; + default: + return false; + } +} + +static const struct regmap_config rt1318_sdw_regmap = { + .reg_bits = 32, + .val_bits = 8, + .readable_reg = rt1318_readable_register, + .volatile_reg = rt1318_volatile_register, + .max_register = 0x41081488, + .reg_defaults = rt1318_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(rt1318_reg_defaults), + .cache_type = REGCACHE_MAPLE, + .use_single_read = true, + .use_single_write = true, +}; + +static int rt1318_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->paging_support = true; + + /* first we need to allocate memory for set bits in port lists */ + prop->source_ports = BIT(2); + prop->sink_ports = BIT(1); + + 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; + + return 0; +} + +static int rt1318_io_init(struct device *dev, struct sdw_slave *slave) +{ + struct rt1318_sdw_priv *rt1318 = dev_get_drvdata(dev); + + if (rt1318->hw_init) + return 0; + + regcache_cache_only(rt1318->regmap, false); + if (rt1318->first_hw_init) { + regcache_cache_bypass(rt1318->regmap, true); + } else { + /* + * PM runtime status is marked as 'active' only when a Slave reports as Attached + */ + /* update count of parent 'active' children */ + pm_runtime_set_active(&slave->dev); + } + + pm_runtime_get_noresume(&slave->dev); + + /* blind write */ + regmap_multi_reg_write(rt1318->regmap, rt1318_blind_write, + ARRAY_SIZE(rt1318_blind_write)); + + if (rt1318->first_hw_init) { + regcache_cache_bypass(rt1318->regmap, false); + regcache_mark_dirty(rt1318->regmap); + } + + /* Mark Slave initialization complete */ + rt1318->first_hw_init = true; + rt1318->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 rt1318_update_status(struct sdw_slave *slave, + enum sdw_slave_status status) +{ + struct rt1318_sdw_priv *rt1318 = dev_get_drvdata(&slave->dev); + + if (status == SDW_SLAVE_UNATTACHED) + rt1318->hw_init = false; + + /* + * Perform initialization only if slave status is present and + * hw_init flag is false + */ + if (rt1318->hw_init || status != SDW_SLAVE_ATTACHED) + return 0; + + /* perform I/O transfers required for Slave initialization */ + return rt1318_io_init(&slave->dev, slave); +} + +static int rt1318_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 rt1318_sdw_priv *rt1318 = snd_soc_component_get_drvdata(component); + unsigned char ps0 = 0x0, ps3 = 0x3; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_write(rt1318->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_PDE23, + RT1318_SDCA_CTL_REQ_POWER_STATE, 0), + ps0); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_write(rt1318->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_PDE23, + RT1318_SDCA_CTL_REQ_POWER_STATE, 0), + ps3); + break; + + default: + break; + } + + return 0; +} + +static const char * const rt1318_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(rt1318_rx_data_ch_enum, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_UDMPU21, RT1318_SDCA_CTL_UDMPU_CLUSTER, 0), 0, + rt1318_rx_data_ch_select); + +static const struct snd_kcontrol_new rt1318_snd_controls[] = { + + /* UDMPU Cluster Selection */ + SOC_ENUM("RX Channel Select", rt1318_rx_data_ch_enum), +}; + +static const struct snd_kcontrol_new rt1318_sto_dac = + SOC_DAPM_DOUBLE_R("Switch", + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_L), + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_R), + 0, 1, 1); + +static const struct snd_soc_dapm_widget rt1318_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_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1318_sto_dac), + + /* Output */ + SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, + rt1318_classd_event, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_OUTPUT("SPOL"), + SND_SOC_DAPM_OUTPUT("SPOR"), + /* Input */ + SND_SOC_DAPM_PGA("FB Data", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_SIGGEN("FB Gen"), +}; + +static const struct snd_soc_dapm_route rt1318_dapm_routes[] = { + { "DAC", "Switch", "DP1RX" }, + { "CLASS D", NULL, "DAC" }, + { "SPOL", NULL, "CLASS D" }, + { "SPOR", NULL, "CLASS D" }, + + { "FB Data", NULL, "FB Gen" }, + { "DP2TX", NULL, "FB Data" }, +}; + +static int rt1318_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, + int direction) +{ + snd_soc_dai_dma_data_set(dai, direction, sdw_stream); + + return 0; +} + +static void rt1318_sdw_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + snd_soc_dai_set_dma_data(dai, substream, NULL); +} + +static int rt1318_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 rt1318_sdw_priv *rt1318 = + 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_runtime *sdw_stream; + int retval, port, num_channels, ch_mask; + unsigned int sampling_rate; + + dev_dbg(dai->dev, "%s %s", __func__, dai->name); + sdw_stream = snd_soc_dai_get_dma_data(dai, substream); + + if (!sdw_stream) + return -EINVAL; + + if (!rt1318->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(rt1318->sdw_slave, &stream_config, + &port_config, 1, sdw_stream); + if (retval) { + dev_err(dai->dev, "Unable to configure port\n"); + return retval; + } + + /* sampling rate configuration */ + switch (params_rate(params)) { + case 16000: + sampling_rate = RT1318_SDCA_RATE_16000HZ; + break; + case 32000: + sampling_rate = RT1318_SDCA_RATE_32000HZ; + break; + case 44100: + sampling_rate = RT1318_SDCA_RATE_44100HZ; + break; + case 48000: + sampling_rate = RT1318_SDCA_RATE_48000HZ; + break; + case 96000: + sampling_rate = RT1318_SDCA_RATE_96000HZ; + break; + case 192000: + sampling_rate = RT1318_SDCA_RATE_192000HZ; + break; + default: + dev_err(component->dev, "Rate %d is not supported\n", + params_rate(params)); + return -EINVAL; + } + + /* set sampling frequency */ + regmap_write(rt1318->regmap, + SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_CS21, RT1318_SDCA_CTL_SAMPLE_FREQ_INDEX, 0), + sampling_rate); + + return 0; +} + +static int rt1318_sdw_pcm_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct rt1318_sdw_priv *rt1318 = + snd_soc_component_get_drvdata(component); + struct sdw_stream_runtime *sdw_stream = + snd_soc_dai_get_dma_data(dai, substream); + + if (!rt1318->sdw_slave) + return -EINVAL; + + sdw_stream_remove_slave(rt1318->sdw_slave, sdw_stream); + return 0; +} + +/* + * slave_ops: callbacks for get_clock_stop_mode, clock_stop and + * port_prep are not defined for now + */ +static const struct sdw_slave_ops rt1318_slave_ops = { + .read_prop = rt1318_read_prop, + .update_status = rt1318_update_status, +}; + +static int rt1318_sdw_component_probe(struct snd_soc_component *component) +{ + int ret; + struct rt1318_sdw_priv *rt1318 = snd_soc_component_get_drvdata(component); + + rt1318->component = component; + + if (!rt1318->first_hw_init) + return 0; + + ret = pm_runtime_resume(component->dev); + dev_dbg(&rt1318->sdw_slave->dev, "%s pm_runtime_resume, ret=%d", __func__, ret); + if (ret < 0 && ret != -EACCES) + return ret; + + return 0; +} + +static const struct snd_soc_component_driver soc_component_sdw_rt1318 = { + .probe = rt1318_sdw_component_probe, + .controls = rt1318_snd_controls, + .num_controls = ARRAY_SIZE(rt1318_snd_controls), + .dapm_widgets = rt1318_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rt1318_dapm_widgets), + .dapm_routes = rt1318_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rt1318_dapm_routes), + .endianness = 1, +}; + +static const struct snd_soc_dai_ops rt1318_aif_dai_ops = { + .hw_params = rt1318_sdw_hw_params, + .hw_free = rt1318_sdw_pcm_hw_free, + .set_stream = rt1318_set_sdw_stream, + .shutdown = rt1318_sdw_shutdown, +}; + +#define RT1318_STEREO_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000) +#define RT1318_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_driver rt1318_sdw_dai[] = { + { + .name = "rt1318-aif", + .playback = { + .stream_name = "DP1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = RT1318_STEREO_RATES, + .formats = RT1318_FORMATS, + }, + .capture = { + .stream_name = "DP2 Capture", + .channels_min = 1, + .channels_max = 2, + .rates = RT1318_STEREO_RATES, + .formats = RT1318_FORMATS, + }, + .ops = &rt1318_aif_dai_ops, + }, +}; + +static int rt1318_sdw_init(struct device *dev, struct regmap *regmap, + struct sdw_slave *slave) +{ + struct rt1318_sdw_priv *rt1318; + int ret; + + rt1318 = devm_kzalloc(dev, sizeof(*rt1318), GFP_KERNEL); + if (!rt1318) + return -ENOMEM; + + dev_set_drvdata(dev, rt1318); + rt1318->sdw_slave = slave; + rt1318->regmap = regmap; + + regcache_cache_only(rt1318->regmap, true); + + /* + * Mark hw_init to false + * HW init will be performed when device reports present + */ + rt1318->hw_init = false; + rt1318->first_hw_init = false; + + ret = devm_snd_soc_register_component(dev, + &soc_component_sdw_rt1318, + rt1318_sdw_dai, + ARRAY_SIZE(rt1318_sdw_dai)); + if (ret < 0) + return ret; + + /* set autosuspend parameters */ + pm_runtime_set_autosuspend_delay(dev, 3000); + pm_runtime_use_autosuspend(dev); + + /* make sure the device does not suspend immediately */ + pm_runtime_mark_last_busy(dev); + + pm_runtime_enable(dev); + + /* important note: the device is NOT tagged as 'active' and will remain + * 'suspended' until the hardware is enumerated/initialized. This is required + * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently + * fail with -EACCESS because of race conditions between card creation and enumeration + */ + + dev_dbg(dev, "%s\n", __func__); + + return ret; +} + +static int rt1318_sdw_probe(struct sdw_slave *slave, + const struct sdw_device_id *id) +{ + struct regmap *regmap; + + /* Regmap Initialization */ + regmap = devm_regmap_init_sdw(slave, &rt1318_sdw_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return rt1318_sdw_init(&slave->dev, regmap, slave); +} + +static int rt1318_sdw_remove(struct sdw_slave *slave) +{ + pm_runtime_disable(&slave->dev); + + return 0; +} + +static const struct sdw_device_id rt1318_id[] = { + SDW_SLAVE_ENTRY_EXT(0x025d, 0x1318, 0x3, 0x1, 0), + {}, +}; +MODULE_DEVICE_TABLE(sdw, rt1318_id); + +static int __maybe_unused rt1318_dev_suspend(struct device *dev) +{ + struct rt1318_sdw_priv *rt1318 = dev_get_drvdata(dev); + + if (!rt1318->hw_init) + return 0; + + regcache_cache_only(rt1318->regmap, true); + return 0; +} + +#define RT1318_PROBE_TIMEOUT 5000 + +static int __maybe_unused rt1318_dev_resume(struct device *dev) +{ + struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct rt1318_sdw_priv *rt1318 = dev_get_drvdata(dev); + unsigned long time; + + if (!rt1318->first_hw_init) + return 0; + + if (!slave->unattach_request) + goto regmap_sync; + + time = wait_for_completion_timeout(&slave->initialization_complete, + msecs_to_jiffies(RT1318_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(rt1318->regmap, false); + regcache_sync(rt1318->regmap); + + return 0; +} + +static const struct dev_pm_ops rt1318_pm = { + SET_SYSTEM_SLEEP_PM_OPS(rt1318_dev_suspend, rt1318_dev_resume) + SET_RUNTIME_PM_OPS(rt1318_dev_suspend, rt1318_dev_resume, NULL) +}; + +static struct sdw_driver rt1318_sdw_driver = { + .driver = { + .name = "rt1318-sdca", + .owner = THIS_MODULE, + .pm = &rt1318_pm, + }, + .probe = rt1318_sdw_probe, + .remove = rt1318_sdw_remove, + .ops = &rt1318_slave_ops, + .id_table = rt1318_id, +}; +module_sdw_driver(rt1318_sdw_driver); + +MODULE_DESCRIPTION("ASoC RT1318 driver SDCA SDW"); +MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); +MODULE_LICENSE("GPL"); |