diff options
Diffstat (limited to 'sound/soc/codecs/ak4613.c')
| -rw-r--r-- | sound/soc/codecs/ak4613.c | 393 |
1 files changed, 309 insertions, 84 deletions
diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c index 4d2e78101f28..f75c19ef3551 100644 --- a/sound/soc/codecs/ak4613.c +++ b/sound/soc/codecs/ak4613.c @@ -10,11 +10,97 @@ // Based on ak4535.c by Richard Purdie // Based on wm8753.c by Liam Girdwood +/* + * +-------+ + * |AK4613 | + * SDTO1 <-| | + * | | + * SDTI1 ->| | + * SDTI2 ->| | + * SDTI3 ->| | + * +-------+ + * + * +---+ + * clk | |___________________________________________... + * + * [TDM512] + * SDTO1 [L1][R1][L2][R2] + * SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4][L5][R5][L6][R6] + * + * [TDM256] + * SDTO1 [L1][R1][L2][R2] + * SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4] + * SDTI2 [L5][R5][L6][R6] + * + * [TDM128] + * SDTO1 [L1][R1][L2][R2] + * SDTI1 [L1][R1][L2][R2] + * SDTI2 [L3][R3][L4][R4] + * SDTI3 [L5][R5][L6][R6] + * + * [STEREO] + * Playback 2ch : SDTI1 + * Capture 2ch : SDTO1 + * + * [TDM512] + * Playback 12ch : SDTI1 + * Capture 4ch : SDTO1 + * + * [TDM256] + * Playback 12ch : SDTI1 + SDTI2 + * Playback 8ch : SDTI1 + * Capture 4ch : SDTO1 + * + * [TDM128] + * Playback 12ch : SDTI1 + SDTI2 + SDTI3 + * Playback 8ch : SDTI1 + SDTI2 + * Playback 4ch : SDTI1 + * Capture 4ch : SDTO1 + * + * + * !!! NOTE !!! + * + * Renesas is the only user of ak4613 on upstream so far, + * but the chip connection is like below. + * Thus, Renesas can't test all connection case. + * Tested TDM is very limited. + * + * +-----+ +-----------+ + * | SoC | | AK4613 | + * | |<-----|SDTO1 IN1|<-- Mic + * | | | IN2| + * | | | | + * | |----->|SDTI1 OUT1|--> Headphone + * +-----+ |SDTI2 OUT2| + * |SDTI3 OUT3| + * | OUT4| + * | OUT5| + * | OUT6| + * +-----------+ + * + * Renesas SoC can handle [2, 6,8] channels. + * Ak4613 can handle [2,4, 8,12] channels. + * + * Because of above HW connection and available channels number, + * Renesas could test are ... + * + * [STEREO] Playback 2ch : SDTI1 + * Capture 2ch : SDTO1 + * [TDM256] Playback 8ch : SDTI1 (*) + * + * (*) it used 8ch data between SoC <-> AK4613 on TDM256 mode, + * but could confirm is only first 2ch because only 1 + * Headphone is connected. + * + * see + * AK4613_ENABLE_TDM_TEST + */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/of_device.h> +#include <linux/of_graph.h> #include <linux/module.h> #include <linux/regmap.h> #include <sound/soc.h> @@ -78,29 +164,74 @@ /* OCTRL */ #define OCTRL_MASK (0x3F) -struct ak4613_formats { - unsigned int width; - unsigned int fmt; -}; +/* + * configs + * + * 0x000000BA + * + * B : AK4613_CONFIG_SDTI_x + * A : AK4613_CONFIG_MODE_x + */ +#define AK4613_CONFIG_SET(priv, x) priv->configs |= AK4613_CONFIG_##x +#define AK4613_CONFIG_GET(priv, x) (priv->configs & AK4613_CONFIG_##x##_MASK) + +/* + * AK4613_CONFIG_SDTI_x + * + * It indicates how many SDTIx is connected. + */ +#define AK4613_CONFIG_SDTI_MASK (0xF << 4) +#define AK4613_CONFIG_SDTI(x) (((x) & 0xF) << 4) +#define AK4613_CONFIG_SDTI_set(priv, x) AK4613_CONFIG_SET(priv, SDTI(x)) +#define AK4613_CONFIG_SDTI_get(priv) ((AK4613_CONFIG_GET(priv, SDTI) >> 4) & 0xF) + +/* + * AK4613_CONFIG_MODE_x + * + * Same as Ctrl1 :: TDM1/TDM0 + * No shift is requested + * see + * AK4613_CTRL1_TO_MODE() + * Table 11/12/13/14 + */ +#define AK4613_CONFIG_MODE_MASK (0xF) +#define AK4613_CONFIG_MODE_STEREO (0x0) +#define AK4613_CONFIG_MODE_TDM512 (0x1) +#define AK4613_CONFIG_MODE_TDM256 (0x2) +#define AK4613_CONFIG_MODE_TDM128 (0x3) + +/* + * !!!! FIXME !!!! + * + * Because of testable HW limitation, TDM256 8ch TDM was only tested. + * This driver uses AK4613_ENABLE_TDM_TEST instead of new DT property so far. + * Don't hesitate to update driver, you don't need to care compatible + * with Renesas. + * + * #define AK4613_ENABLE_TDM_TEST + */ struct ak4613_interface { - struct ak4613_formats capture; - struct ak4613_formats playback; + unsigned int width; + unsigned int fmt; + u8 dif; }; struct ak4613_priv { struct mutex lock; - const struct ak4613_interface *iface; - struct snd_pcm_hw_constraint_list constraint; + struct snd_pcm_hw_constraint_list constraint_rates; + struct snd_pcm_hw_constraint_list constraint_channels; struct work_struct dummy_write_work; struct snd_soc_component *component; unsigned int rate; unsigned int sysclk; unsigned int fmt; + unsigned int configs; + int cnt; + u8 ctrl1; u8 oc; u8 ic; - int cnt; }; /* @@ -137,14 +268,24 @@ static const struct reg_default ak4613_reg[] = { { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 }, }; -#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3) -#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt } +/* + * CTRL1 register + * see + * Table 11/12/13/14 + */ +#define AUDIO_IFACE(_dif, _width, _fmt) \ + { \ + .dif = _dif, \ + .width = _width, \ + .fmt = SND_SOC_DAIFMT_##_fmt,\ + } static const struct ak4613_interface ak4613_iface[] = { - /* capture */ /* playback */ - /* [0] - [2] are not supported */ - [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) }, - [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) }, + /* It doesn't support asymmetric format */ + + AUDIO_IFACE(0x03, 24, LEFT_J), + AUDIO_IFACE(0x04, 24, I2S), }; +#define AK4613_CTRL1_TO_MODE(priv) ((priv)->ctrl1 >> 6) /* AK4613_CONFIG_MODE_x */ static const struct regmap_config ak4613_regmap_cfg = { .reg_bits = 8, @@ -250,13 +391,14 @@ static void ak4613_dai_shutdown(struct snd_pcm_substream *substream, priv->cnt = 0; } if (!priv->cnt) - priv->iface = NULL; + priv->ctrl1 = 0; mutex_unlock(&priv->lock); } static void ak4613_hw_constraints(struct ak4613_priv *priv, - struct snd_pcm_runtime *runtime) + struct snd_pcm_substream *substream) { + struct snd_pcm_runtime *runtime = substream->runtime; static const unsigned int ak4613_rates[] = { 32000, 44100, @@ -267,10 +409,36 @@ static void ak4613_hw_constraints(struct ak4613_priv *priv, 176400, 192000, }; - struct snd_pcm_hw_constraint_list *constraint = &priv->constraint; +#define AK4613_CHANNEL_2 0 +#define AK4613_CHANNEL_4 1 +#define AK4613_CHANNEL_8 2 +#define AK4613_CHANNEL_12 3 +#define AK4613_CHANNEL_NONE -1 + static const unsigned int ak4613_channels[] = { + [AK4613_CHANNEL_2] = 2, + [AK4613_CHANNEL_4] = 4, + [AK4613_CHANNEL_8] = 8, + [AK4613_CHANNEL_12] = 12, + }; +#define MODE_MAX 4 +#define SDTx_MAX 4 +#define MASK(x) (1 << AK4613_CHANNEL_##x) + static const int mask_list[MODE_MAX][SDTx_MAX] = { + /* SDTO SDTIx1 SDTIx2 SDTIx3 */ + [AK4613_CONFIG_MODE_STEREO] = { MASK(2), MASK(2), MASK(2), MASK(2)}, + [AK4613_CONFIG_MODE_TDM512] = { MASK(4), MASK(12), MASK(12), MASK(12)}, + [AK4613_CONFIG_MODE_TDM256] = { MASK(4), MASK(8), MASK(8)|MASK(12), MASK(8)|MASK(12)}, + [AK4613_CONFIG_MODE_TDM128] = { MASK(4), MASK(4), MASK(4)|MASK(8), MASK(4)|MASK(8)|MASK(12)}, + }; + struct snd_pcm_hw_constraint_list *constraint; + unsigned int mask; + unsigned int mode; unsigned int fs; + int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + int sdti_num; int i; + constraint = &priv->constraint_rates; constraint->list = ak4613_rates; constraint->mask = 0; constraint->count = 0; @@ -296,6 +464,41 @@ static void ak4613_hw_constraints(struct ak4613_priv *priv, snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, constraint); + + + sdti_num = AK4613_CONFIG_SDTI_get(priv); + if (WARN_ON(sdti_num >= SDTx_MAX)) + return; + + if (priv->cnt) { + /* + * If it was already working, + * the constraint is same as working mode. + */ + mode = AK4613_CTRL1_TO_MODE(priv); + mask = 0; /* no default */ + } else { + /* + * It is not yet working, + * the constraint is based on board configs. + * STEREO mask is default + */ + mode = AK4613_CONFIG_GET(priv, MODE); + mask = mask_list[AK4613_CONFIG_MODE_STEREO][is_play * sdti_num]; + } + + if (WARN_ON(mode >= MODE_MAX)) + return; + + /* add each mode mask */ + mask |= mask_list[mode][is_play * sdti_num]; + + constraint = &priv->constraint_channels; + constraint->list = ak4613_channels; + constraint->mask = mask; + constraint->count = sizeof(ak4613_channels); + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, constraint); } static int ak4613_dai_startup(struct snd_pcm_substream *substream, @@ -304,9 +507,10 @@ static int ak4613_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); + mutex_lock(&priv->lock); + ak4613_hw_constraints(priv, substream); priv->cnt++; - - ak4613_hw_constraints(priv, substream->runtime); + mutex_unlock(&priv->lock); return 0; } @@ -322,13 +526,13 @@ static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai, return 0; } -static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int format) { struct snd_soc_component *component = dai->component; struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); + unsigned int fmt; - fmt &= SND_SOC_DAIFMT_FORMAT_MASK; - + fmt = format & SND_SOC_DAIFMT_FORMAT_MASK; switch (fmt) { case SND_SOC_DAIFMT_LEFT_J: case SND_SOC_DAIFMT_I2S: @@ -338,24 +542,20 @@ static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } - return 0; -} - -static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface, - int is_play, - unsigned int fmt, unsigned int width) -{ - const struct ak4613_formats *fmts; - - fmts = (is_play) ? &iface->playback : &iface->capture; - - if (fmts->fmt != fmt) - return false; - - if (fmts->width != width) - return false; + fmt = format & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; + switch (fmt) { + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + /* + * SUPPORTME + * + * "clock provider" is not yet supperted + */ + return -EINVAL; + } - return true; + return 0; } static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, @@ -364,14 +564,12 @@ static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); - const struct ak4613_interface *iface; struct device *dev = component->dev; unsigned int width = params_width(params); unsigned int fmt = priv->fmt; unsigned int rate; - int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; int i, ret; - u8 fmt_ctrl, ctrl2; + u8 ctrl2; rate = params_rate(params); switch (rate) { @@ -397,40 +595,51 @@ static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, /* * FIXME * - * It doesn't support TDM at this point + * It doesn't have full TDM suppert yet */ - fmt_ctrl = NO_FMT; ret = -EINVAL; - iface = NULL; mutex_lock(&priv->lock); - if (priv->iface) { - if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width)) - iface = priv->iface; + if (priv->cnt > 1) { + /* + * If it was already working, use current priv->ctrl1 + */ + ret = 0; } else { + /* + * It is not yet working, + */ + unsigned int channel = params_channels(params); + u8 tdm; + + /* STEREO or TDM */ + if (channel == 2) + tdm = AK4613_CONFIG_MODE_STEREO; + else + tdm = AK4613_CONFIG_GET(priv, MODE); + for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) { - if (!ak4613_dai_fmt_matching(ak4613_iface + i, - is_play, - fmt, width)) - continue; - iface = ak4613_iface + i; - break; + const struct ak4613_interface *iface = ak4613_iface + i; + + if ((iface->fmt == fmt) && (iface->width == width)) { + /* + * Ctrl1 + * | D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 | + * |TDM1|TDM0|DIF2|DIF1|DIF0|ATS1|ATS0|SMUTE| + * < tdm > < iface->dif > + */ + priv->ctrl1 = (tdm << 6) | (iface->dif << 3); + ret = 0; + break; + } } } - - if ((priv->iface == NULL) || - (priv->iface == iface)) { - priv->iface = iface; - ret = 0; - } mutex_unlock(&priv->lock); if (ret < 0) goto hw_params_end; - fmt_ctrl = AUDIO_IFACE_TO_VAL(iface); - - snd_soc_component_update_bits(component, CTRL1, FMT_MASK, fmt_ctrl); + snd_soc_component_update_bits(component, CTRL1, FMT_MASK, priv->ctrl1); snd_soc_component_update_bits(component, CTRL2, DFS_MASK, ctrl2); snd_soc_component_update_bits(component, ICTRL, ICTRL_MASK, priv->ic); @@ -574,14 +783,14 @@ static struct snd_soc_dai_driver ak4613_dai = { .playback = { .stream_name = "Playback", .channels_min = 2, - .channels_max = 2, + .channels_max = 12, .rates = AK4613_PCM_RATE, .formats = AK4613_PCM_FMTBIT, }, .capture = { .stream_name = "Capture", .channels_min = 2, - .channels_max = 2, + .channels_max = 4, .rates = AK4613_PCM_RATE, .formats = AK4613_PCM_FMTBIT, }, @@ -618,7 +827,6 @@ static const struct snd_soc_component_driver soc_component_dev_ak4613 = { .num_dapm_routes = ARRAY_SIZE(ak4613_intercon), .idle_bias_on = 1, .endianness = 1, - .non_legacy_dai_naming = 1, }; static void ak4613_parse_of(struct ak4613_priv *priv, @@ -626,6 +834,7 @@ static void ak4613_parse_of(struct ak4613_priv *priv, { struct device_node *np = dev->of_node; char prop[32]; + int sdti_num; int i; /* Input 1 - 2 */ @@ -641,10 +850,34 @@ static void ak4613_parse_of(struct ak4613_priv *priv, if (!of_get_property(np, prop, NULL)) priv->oc |= 1 << i; } + + /* + * enable TDM256 test + * + * !!! FIXME !!! + * + * It should be configured by DT or other way + * if it was full supported. + * But it is using ifdef style for now for test + * purpose. + */ +#if defined(AK4613_ENABLE_TDM_TEST) + AK4613_CONFIG_SET(priv, MODE_TDM256); +#endif + + /* + * connected STDI + * TDM support is assuming it is probed via Audio-Graph-Card style here. + * Default is SDTIx1 if it was probed via Simple-Audio-Card for now. + */ + sdti_num = of_graph_get_endpoint_count(np); + if ((sdti_num >= SDTx_MAX) || (sdti_num < 1)) + sdti_num = 1; + + AK4613_CONFIG_SDTI_set(priv, sdti_num); } -static int ak4613_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int ak4613_i2c_probe(struct i2c_client *i2c) { struct device *dev = &i2c->dev; struct device_node *np = dev->of_node; @@ -653,13 +886,11 @@ static int ak4613_i2c_probe(struct i2c_client *i2c, struct ak4613_priv *priv; regmap_cfg = NULL; - if (np) { - const struct of_device_id *of_id; - - of_id = of_match_device(ak4613_of_match, dev); - if (of_id) - regmap_cfg = of_id->data; - } else { + if (np) + regmap_cfg = of_device_get_match_data(dev); + else { + const struct i2c_device_id *id = + i2c_match_id(ak4613_i2c_id, i2c); regmap_cfg = (const struct regmap_config *)id->driver_data; } @@ -672,7 +903,7 @@ static int ak4613_i2c_probe(struct i2c_client *i2c, ak4613_parse_of(priv, dev); - priv->iface = NULL; + priv->ctrl1 = 0; priv->cnt = 0; priv->sysclk = 0; INIT_WORK(&priv->dummy_write_work, ak4613_dummy_write); @@ -689,18 +920,12 @@ static int ak4613_i2c_probe(struct i2c_client *i2c, &ak4613_dai, 1); } -static int ak4613_i2c_remove(struct i2c_client *client) -{ - return 0; -} - static struct i2c_driver ak4613_i2c_driver = { .driver = { .name = "ak4613-codec", .of_match_table = ak4613_of_match, }, - .probe = ak4613_i2c_probe, - .remove = ak4613_i2c_remove, + .probe_new = ak4613_i2c_probe, .id_table = ak4613_i2c_id, }; |