diff options
Diffstat (limited to 'sound/soc/codecs/arizona.c')
-rw-r--r-- | sound/soc/codecs/arizona.c | 263 |
1 files changed, 219 insertions, 44 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 747c71e..2f2e91a 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -1152,6 +1152,31 @@ static int arizona_startup(struct snd_pcm_substream *substream, constraint); } +static void arizona_wm5102_set_dac_comp(struct snd_soc_codec *codec, + unsigned int rate) +{ + struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec); + struct arizona *arizona = priv->arizona; + struct reg_default dac_comp[] = { + { 0x80, 0x3 }, + { ARIZONA_DAC_COMP_1, 0 }, + { ARIZONA_DAC_COMP_2, 0 }, + { 0x80, 0x0 }, + }; + + mutex_lock(&codec->mutex); + + dac_comp[1].def = arizona->dac_comp_coeff; + if (rate >= 176400) + dac_comp[2].def = arizona->dac_comp_enabled; + + mutex_unlock(&codec->mutex); + + regmap_multi_reg_write(arizona->regmap, + dac_comp, + ARRAY_SIZE(dac_comp)); +} + static int arizona_hw_params_rate(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -1178,6 +1203,15 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream, switch (dai_priv->clk) { case ARIZONA_CLK_SYSCLK: + switch (priv->arizona->type) { + case WM5102: + arizona_wm5102_set_dac_comp(codec, + params_rate(params)); + break; + default: + break; + } + snd_soc_update_bits(codec, ARIZONA_SAMPLE_RATE_1, ARIZONA_SAMPLE_RATE_1_MASK, sr_val); if (base) @@ -1200,6 +1234,27 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream, return 0; } +static bool arizona_aif_cfg_changed(struct snd_soc_codec *codec, + int base, int bclk, int lrclk, int frame) +{ + int val; + + val = snd_soc_read(codec, base + ARIZONA_AIF_BCLK_CTRL); + if (bclk != (val & ARIZONA_AIF1_BCLK_FREQ_MASK)) + return true; + + val = snd_soc_read(codec, base + ARIZONA_AIF_TX_BCLK_RATE); + if (lrclk != (val & ARIZONA_AIF1TX_BCPF_MASK)) + return true; + + val = snd_soc_read(codec, base + ARIZONA_AIF_FRAME_CTRL_1); + if (frame != (val & (ARIZONA_AIF1TX_WL_MASK | + ARIZONA_AIF1TX_SLOT_LEN_MASK))) + return true; + + return false; +} + static int arizona_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -1210,26 +1265,40 @@ static int arizona_hw_params(struct snd_pcm_substream *substream, int base = dai->driver->base; const int *rates; int i, ret, val; + int channels = params_channels(params); int chan_limit = arizona->pdata.max_channels_clocked[dai->id - 1]; + int tdm_width = arizona->tdm_width[dai->id - 1]; + int tdm_slots = arizona->tdm_slots[dai->id - 1]; int bclk, lrclk, wl, frame, bclk_target; + bool reconfig; + unsigned int aif_tx_state, aif_rx_state; if (params_rate(params) % 8000) rates = &arizona_44k1_bclk_rates[0]; else rates = &arizona_48k_bclk_rates[0]; - bclk_target = snd_soc_params_to_bclk(params); - if (chan_limit && chan_limit < params_channels(params)) { + if (tdm_slots) { + arizona_aif_dbg(dai, "Configuring for %d %d bit TDM slots\n", + tdm_slots, tdm_width); + bclk_target = tdm_slots * tdm_width * params_rate(params); + channels = tdm_slots; + } else { + bclk_target = snd_soc_params_to_bclk(params); + } + + if (chan_limit && chan_limit < channels) { arizona_aif_dbg(dai, "Limiting to %d channels\n", chan_limit); - bclk_target /= params_channels(params); + bclk_target /= channels; bclk_target *= chan_limit; } - /* Force stereo for I2S mode */ + /* Force multiple of 2 channels for I2S mode */ val = snd_soc_read(codec, base + ARIZONA_AIF_FORMAT); - if (params_channels(params) == 1 && (val & ARIZONA_AIF1_FMT_MASK)) { + if ((channels & 1) && (val & ARIZONA_AIF1_FMT_MASK)) { arizona_aif_dbg(dai, "Forcing stereo mode\n"); - bclk_target *= 2; + bclk_target /= channels; + bclk_target *= channels + 1; } for (i = 0; i < ARRAY_SIZE(arizona_44k1_bclk_rates); i++) { @@ -1253,28 +1322,56 @@ static int arizona_hw_params(struct snd_pcm_substream *substream, wl = snd_pcm_format_width(params_format(params)); frame = wl << ARIZONA_AIF1TX_WL_SHIFT | wl; + reconfig = arizona_aif_cfg_changed(codec, base, bclk, lrclk, frame); + + if (reconfig) { + /* Save AIF TX/RX state */ + aif_tx_state = snd_soc_read(codec, + base + ARIZONA_AIF_TX_ENABLES); + aif_rx_state = snd_soc_read(codec, + base + ARIZONA_AIF_RX_ENABLES); + /* Disable AIF TX/RX before reconfiguring it */ + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_TX_ENABLES, 0xff, 0x0); + regmap_update_bits(arizona->regmap, + base + ARIZONA_AIF_RX_ENABLES, 0xff, 0x0); + } + ret = arizona_hw_params_rate(substream, params, dai); if (ret != 0) - return ret; + goto restore_aif; - regmap_update_bits_async(arizona->regmap, - base + ARIZONA_AIF_BCLK_CTRL, - ARIZONA_AIF1_BCLK_FREQ_MASK, bclk); - regmap_update_bits_async(arizona->regmap, - base + ARIZONA_AIF_TX_BCLK_RATE, - ARIZONA_AIF1TX_BCPF_MASK, lrclk); - regmap_update_bits_async(arizona->regmap, - base + ARIZONA_AIF_RX_BCLK_RATE, - ARIZONA_AIF1RX_BCPF_MASK, lrclk); - regmap_update_bits_async(arizona->regmap, - base + ARIZONA_AIF_FRAME_CTRL_1, - ARIZONA_AIF1TX_WL_MASK | - ARIZONA_AIF1TX_SLOT_LEN_MASK, frame); - regmap_update_bits(arizona->regmap, base + ARIZONA_AIF_FRAME_CTRL_2, - ARIZONA_AIF1RX_WL_MASK | - ARIZONA_AIF1RX_SLOT_LEN_MASK, frame); + if (reconfig) { + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_BCLK_CTRL, + ARIZONA_AIF1_BCLK_FREQ_MASK, bclk); + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_TX_BCLK_RATE, + ARIZONA_AIF1TX_BCPF_MASK, lrclk); + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_RX_BCLK_RATE, + ARIZONA_AIF1RX_BCPF_MASK, lrclk); + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_FRAME_CTRL_1, + ARIZONA_AIF1TX_WL_MASK | + ARIZONA_AIF1TX_SLOT_LEN_MASK, frame); + regmap_update_bits(arizona->regmap, + base + ARIZONA_AIF_FRAME_CTRL_2, + ARIZONA_AIF1RX_WL_MASK | + ARIZONA_AIF1RX_SLOT_LEN_MASK, frame); + } - return 0; +restore_aif: + if (reconfig) { + /* Restore AIF TX/RX state */ + regmap_update_bits_async(arizona->regmap, + base + ARIZONA_AIF_TX_ENABLES, + 0xff, aif_tx_state); + regmap_update_bits(arizona->regmap, + base + ARIZONA_AIF_RX_ENABLES, + 0xff, aif_rx_state); + } + return ret; } static const char *arizona_dai_clk_str(int clk_id) @@ -1349,9 +1446,63 @@ static int arizona_set_tristate(struct snd_soc_dai *dai, int tristate) ARIZONA_AIF1_TRI, reg); } +static void arizona_set_channels_to_mask(struct snd_soc_dai *dai, + unsigned int base, + int channels, unsigned int mask) +{ + struct snd_soc_codec *codec = dai->codec; + struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec); + struct arizona *arizona = priv->arizona; + int slot, i; + + for (i = 0; i < channels; ++i) { + slot = ffs(mask) - 1; + if (slot < 0) + return; + + regmap_write(arizona->regmap, base + i, slot); + + mask &= ~(1 << slot); + } + + if (mask) + arizona_aif_warn(dai, "Too many channels in TDM mask\n"); +} + +static int arizona_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct snd_soc_codec *codec = dai->codec; + struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec); + struct arizona *arizona = priv->arizona; + int base = dai->driver->base; + int rx_max_chan = dai->driver->playback.channels_max; + int tx_max_chan = dai->driver->capture.channels_max; + + /* Only support TDM for the physical AIFs */ + if (dai->id > ARIZONA_MAX_AIF) + return -ENOTSUPP; + + if (slots == 0) { + tx_mask = (1 << tx_max_chan) - 1; + rx_mask = (1 << rx_max_chan) - 1; + } + + arizona_set_channels_to_mask(dai, base + ARIZONA_AIF_FRAME_CTRL_3, + tx_max_chan, tx_mask); + arizona_set_channels_to_mask(dai, base + ARIZONA_AIF_FRAME_CTRL_11, + rx_max_chan, rx_mask); + + arizona->tdm_width[dai->id - 1] = slot_width; + arizona->tdm_slots[dai->id - 1] = slots; + + return 0; +} + const struct snd_soc_dai_ops arizona_dai_ops = { .startup = arizona_startup, .set_fmt = arizona_set_fmt, + .set_tdm_slot = arizona_set_tdm_slot, .hw_params = arizona_hw_params, .set_sysclk = arizona_dai_set_sysclk, .set_tristate = arizona_set_tristate, @@ -1425,6 +1576,12 @@ static int arizona_validate_fll(struct arizona_fll *fll, { unsigned int Fvco_min; + if (fll->fout && Fout != fll->fout) { + arizona_fll_err(fll, + "Can't change output on active FLL\n"); + return -EINVAL; + } + if (Fref / ARIZONA_FLL_MAX_REFDIV > ARIZONA_FLL_MAX_FREF) { arizona_fll_err(fll, "Can't scale %dMHz in to <=13.5MHz\n", @@ -1503,6 +1660,10 @@ static int arizona_calc_fratio(struct arizona_fll *fll, while (div <= ARIZONA_FLL_MAX_REFDIV) { for (ratio = init_ratio; ratio <= ARIZONA_FLL_MAX_FRATIO; ratio++) { + if ((ARIZONA_FLL_VCO_CORNER / 2) / + (fll->vco_mult * ratio) < Fref) + break; + if (target % (ratio * Fref)) { cfg->refdiv = refdiv; cfg->fratio = ratio - 1; @@ -1510,11 +1671,7 @@ static int arizona_calc_fratio(struct arizona_fll *fll, } } - for (ratio = init_ratio - 1; ratio >= 0; ratio--) { - if (ARIZONA_FLL_VCO_CORNER / (fll->vco_mult * ratio) < - Fref) - break; - + for (ratio = init_ratio - 1; ratio > 0; ratio--) { if (target % (ratio * Fref)) { cfg->refdiv = refdiv; cfg->fratio = ratio - 1; @@ -1641,7 +1798,7 @@ static void arizona_apply_fll(struct arizona *arizona, unsigned int base, ARIZONA_FLL1_CTRL_UPD | cfg->n); } -static bool arizona_is_enabled_fll(struct arizona_fll *fll) +static int arizona_is_enabled_fll(struct arizona_fll *fll) { struct arizona *arizona = fll->arizona; unsigned int reg; @@ -1657,13 +1814,26 @@ static bool arizona_is_enabled_fll(struct arizona_fll *fll) return reg & ARIZONA_FLL1_ENA; } -static void arizona_enable_fll(struct arizona_fll *fll) +static int arizona_enable_fll(struct arizona_fll *fll) { struct arizona *arizona = fll->arizona; int ret; bool use_sync = false; + int already_enabled = arizona_is_enabled_fll(fll); struct arizona_fll_cfg cfg; + if (already_enabled < 0) + return already_enabled; + + if (already_enabled) { + /* Facilitate smooth refclk across the transition */ + regmap_update_bits_async(fll->arizona->regmap, fll->base + 0x7, + ARIZONA_FLL1_GAIN_MASK, 0); + regmap_update_bits_async(fll->arizona->regmap, fll->base + 1, + ARIZONA_FLL1_FREERUN, + ARIZONA_FLL1_FREERUN); + } + /* * If we have both REFCLK and SYNCCLK then enable both, * otherwise apply the SYNCCLK settings to REFCLK. @@ -1691,7 +1861,7 @@ static void arizona_enable_fll(struct arizona_fll *fll) ARIZONA_FLL1_SYNC_ENA, 0); } else { arizona_fll_err(fll, "No clocks provided\n"); - return; + return -EINVAL; } /* @@ -1706,25 +1876,29 @@ static void arizona_enable_fll(struct arizona_fll *fll) ARIZONA_FLL1_SYNC_BW, ARIZONA_FLL1_SYNC_BW); - if (!arizona_is_enabled_fll(fll)) + if (!already_enabled) pm_runtime_get(arizona->dev); /* Clear any pending completions */ try_wait_for_completion(&fll->ok); regmap_update_bits_async(arizona->regmap, fll->base + 1, - ARIZONA_FLL1_FREERUN, 0); - regmap_update_bits_async(arizona->regmap, fll->base + 1, ARIZONA_FLL1_ENA, ARIZONA_FLL1_ENA); if (use_sync) regmap_update_bits_async(arizona->regmap, fll->base + 0x11, ARIZONA_FLL1_SYNC_ENA, ARIZONA_FLL1_SYNC_ENA); + if (already_enabled) + regmap_update_bits_async(arizona->regmap, fll->base + 1, + ARIZONA_FLL1_FREERUN, 0); + ret = wait_for_completion_timeout(&fll->ok, msecs_to_jiffies(250)); if (ret == 0) arizona_fll_warn(fll, "Timed out waiting for lock\n"); + + return 0; } static void arizona_disable_fll(struct arizona_fll *fll) @@ -1738,6 +1912,8 @@ static void arizona_disable_fll(struct arizona_fll *fll) ARIZONA_FLL1_ENA, 0, &change); regmap_update_bits(arizona->regmap, fll->base + 0x11, ARIZONA_FLL1_SYNC_ENA, 0); + regmap_update_bits_async(arizona->regmap, fll->base + 1, + ARIZONA_FLL1_FREERUN, 0); if (change) pm_runtime_put_autosuspend(arizona->dev); @@ -1746,7 +1922,7 @@ static void arizona_disable_fll(struct arizona_fll *fll) int arizona_set_fll_refclk(struct arizona_fll *fll, int source, unsigned int Fref, unsigned int Fout) { - int ret; + int ret = 0; if (fll->ref_src == source && fll->ref_freq == Fref) return 0; @@ -1761,17 +1937,17 @@ int arizona_set_fll_refclk(struct arizona_fll *fll, int source, fll->ref_freq = Fref; if (fll->fout && Fref > 0) { - arizona_enable_fll(fll); + ret = arizona_enable_fll(fll); } - return 0; + return ret; } EXPORT_SYMBOL_GPL(arizona_set_fll_refclk); int arizona_set_fll(struct arizona_fll *fll, int source, unsigned int Fref, unsigned int Fout) { - int ret; + int ret = 0; if (fll->sync_src == source && fll->sync_freq == Fref && fll->fout == Fout) @@ -1793,13 +1969,12 @@ int arizona_set_fll(struct arizona_fll *fll, int source, fll->sync_freq = Fref; fll->fout = Fout; - if (Fout) { - arizona_enable_fll(fll); - } else { + if (Fout) + ret = arizona_enable_fll(fll); + else arizona_disable_fll(fll); - } - return 0; + return ret; } EXPORT_SYMBOL_GPL(arizona_set_fll); |