Lines Matching +full:pclk +full:- +full:sample
1 // SPDX-License-Identifier: GPL-2.0-or-later
18 #include "atmel-pdmic.h"
30 struct clk *pclk;
40 .compatible = "atmel,sama5d2-pdmic",
52 struct device_node *np = dev->of_node;
57 return ERR_PTR(-EINVAL);
62 return ERR_PTR(-ENOMEM);
64 if (of_property_read_string(np, "atmel,model", &pdata->card_name))
65 pdata->card_name = "PDMIC";
67 if (of_property_read_u32(np, "atmel,mic-min-freq",
68 &pdata->mic_min_freq)) {
69 dev_err(dev, "failed to get mic-min-freq\n");
70 return ERR_PTR(-EINVAL);
73 if (of_property_read_u32(np, "atmel,mic-max-freq",
74 &pdata->mic_max_freq)) {
75 dev_err(dev, "failed to get mic-max-freq\n");
76 return ERR_PTR(-EINVAL);
79 if (pdata->mic_max_freq < pdata->mic_min_freq) {
81 "mic-max-freq should not be less than mic-min-freq\n");
82 return ERR_PTR(-EINVAL);
85 if (of_property_read_s32(np, "atmel,mic-offset", &pdata->mic_offset))
86 pdata->mic_offset = 0;
88 if (pdata->mic_offset > PDMIC_OFFSET_MAX_VAL) {
90 "mic-offset value %d is larger than the max value %d, the max value is specified\n",
91 pdata->mic_offset, PDMIC_OFFSET_MAX_VAL);
92 pdata->mic_offset = PDMIC_OFFSET_MAX_VAL;
93 } else if (pdata->mic_offset < PDMIC_OFFSET_MIN_VAL) {
95 "mic-offset value %d is less than the min value %d, the min value is specified\n",
96 pdata->mic_offset, PDMIC_OFFSET_MIN_VAL);
97 pdata->mic_offset = PDMIC_OFFSET_MIN_VAL;
108 struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
111 ret = clk_prepare_enable(dd->gclk);
115 ret = clk_prepare_enable(dd->pclk);
117 clk_disable_unprepare(dd->gclk);
122 regmap_write(dd->regmap, PDMIC_CR, 0);
124 dd->substream = substream;
127 regmap_write(dd->regmap, PDMIC_IER, PDMIC_IER_OVRE);
136 struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
139 regmap_write(dd->regmap, PDMIC_IDR, PDMIC_IDR_OVRE);
141 clk_disable_unprepare(dd->gclk);
142 clk_disable_unprepare(dd->pclk);
149 struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
150 struct snd_soc_component *component = cpu_dai->component;
155 ret = regmap_read(dd->regmap, PDMIC_CDR, &val);
195 struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
201 dev_err(dd->dev,
206 slave_config->src_addr = dd->phy_base + PDMIC_CDR;
207 slave_config->src_maxburst = 1;
208 slave_config->dst_maxburst = 1;
221 /* Mic Gain = dgain * 2^(-scale) */
227 /* range from -90 dB to 90 dB */
229 { 1, 15}, { 1, 14}, /* -90, -84 dB */
230 { 3, 15}, { 1, 13}, { 3, 14}, { 1, 12}, /* -81, -78, -75, -72 dB */
231 { 5, 14}, { 13, 15}, /* -70, -68 dB */
232 { 9, 14}, { 21, 15}, { 23, 15}, { 13, 14}, /* -65 ~ -62 dB */
233 { 29, 15}, { 33, 15}, { 37, 15}, { 41, 15}, /* -61 ~ -58 dB */
234 { 23, 14}, { 13, 13}, { 58, 15}, { 65, 15}, /* -57 ~ -54 dB */
235 { 73, 15}, { 41, 14}, { 23, 13}, { 13, 12}, /* -53 ~ -50 dB */
236 { 29, 13}, { 65, 14}, { 73, 14}, { 41, 13}, /* -49 ~ -46 dB */
237 { 23, 12}, { 207, 15}, { 29, 12}, { 65, 13}, /* -45 ~ -42 dB */
238 { 73, 13}, { 41, 12}, { 23, 11}, { 413, 15}, /* -41 ~ -38 dB */
239 { 463, 15}, { 519, 15}, { 583, 15}, { 327, 14}, /* -37 ~ -34 dB */
240 { 367, 14}, { 823, 15}, { 231, 13}, { 1036, 15}, /* -33 ~ -30 dB */
241 { 1163, 15}, { 1305, 15}, { 183, 12}, { 1642, 15}, /* -29 ~ -26 dB */
242 { 1843, 15}, { 2068, 15}, { 145, 11}, { 2603, 15}, /* -25 ~ -22 dB */
243 { 365, 12}, { 3277, 15}, { 3677, 15}, { 4125, 15}, /* -21 ~ -18 dB */
244 { 4629, 15}, { 5193, 15}, { 5827, 15}, { 3269, 14}, /* -17 ~ -14 dB */
245 { 917, 12}, { 8231, 15}, { 9235, 15}, { 5181, 14}, /* -13 ~ -10 dB */
246 {11627, 15}, {13045, 15}, {14637, 15}, {16423, 15}, /* -9 ~ -6 dB */
247 {18427, 15}, {20675, 15}, { 5799, 13}, {26029, 15}, /* -5 ~ -2 dB */
248 { 7301, 13}, { 1, 0}, {18383, 14}, {10313, 13}, /* -1 ~ 2 dB */
274 0, 1, TLV_DB_SCALE_ITEM(-9000, 600, 0),
275 2, 5, TLV_DB_SCALE_ITEM(-8100, 300, 0),
276 6, 7, TLV_DB_SCALE_ITEM(-7000, 200, 0),
277 8, ARRAY_SIZE(mic_gain_table)-1, TLV_DB_SCALE_ITEM(-6500, 100, 0),
296 ucontrol->value.integer.value[0] = i;
306 (struct soc_mixer_control *)kcontrol->private_value;
308 int max = mc->max;
312 val = ucontrol->value.integer.value[0];
315 return -EINVAL;
332 ARRAY_SIZE(mic_gain_table)-1, 0,
347 (u32)(dd->pdata->mic_offset << PDMIC_DSPR1_OFFSET_SHIFT));
360 struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
361 struct snd_soc_component *component = cpu_dai->component;
362 unsigned int rate_min = substream->runtime->hw.rate_min;
363 unsigned int rate_max = substream->runtime->hw.rate_max;
371 dev_err(component->dev,
373 return -EINVAL;
377 dev_err(component->dev,
378 "sample rate is %dHz, min rate is %dHz, max rate is %dHz\n",
381 return -EINVAL;
394 return -EINVAL;
405 pclk_rate = clk_get_rate(dd->pclk);
406 gclk_rate = clk_get_rate(dd->gclk);
408 /* PRESCAL = SELCK/(2*f_pdmic) - 1*/
409 pclk_prescal = (u32)(pclk_rate/(f_pdmic << 1)) - 1;
410 gclk_prescal = (u32)(gclk_rate/(f_pdmic << 1)) - 1;
434 struct snd_soc_component *component = cpu_dai->component;
449 return -EINVAL;
478 .name = "atmel-pdmic",
497 return -ENOMEM;
501 return -ENOMEM;
503 dai_link->cpus = comp;
504 dai_link->codecs = &snd_soc_dummy_dlc;
506 dai_link->num_cpus = 1;
507 dai_link->num_codecs = 1;
509 dai_link->name = "PDMIC";
510 dai_link->stream_name = "PDMIC PCM";
511 dai_link->cpus->dai_name = dev_name(dev);
513 card->dai_link = dai_link;
514 card->num_links = 1;
515 card->name = dd->pdata->card_name;
516 card->dev = dev;
524 u32 mic_min_freq = dd->pdata->mic_min_freq;
525 u32 mic_max_freq = dd->pdata->mic_max_freq;
526 u32 clk_max_rate = (u32)(clk_get_rate(dd->pclk) >> 1);
527 u32 clk_min_rate = (u32)(clk_get_rate(dd->gclk) >> 8);
546 regmap_read(dd->regmap, PDMIC_ISR, &pdmic_isr);
549 regmap_update_bits(dd->regmap, PDMIC_CR, PDMIC_CR_ENPDM_MASK,
552 snd_pcm_stop_xrun(dd->substream);
571 struct device *dev = &pdev->dev;
586 return -ENOMEM;
588 dd->pdata = pdata;
589 dd->dev = dev;
591 dd->irq = platform_get_irq(pdev, 0);
592 if (dd->irq < 0)
593 return dd->irq;
595 dd->pclk = devm_clk_get(dev, "pclk");
596 if (IS_ERR(dd->pclk)) {
597 ret = PTR_ERR(dd->pclk);
602 dd->gclk = devm_clk_get(dev, "gclk");
603 if (IS_ERR(dd->gclk)) {
604 ret = PTR_ERR(dd->gclk);
610 * lower than the pclk clock frequency
612 ret = clk_set_rate(dd->gclk, clk_get_rate(dd->pclk)/3);
622 dd->phy_base = res->start;
624 dd->regmap = devm_regmap_init_mmio(dev, io_base,
626 if (IS_ERR(dd->regmap)) {
627 ret = PTR_ERR(dd->regmap);
632 ret = devm_request_irq(dev, dd->irq, atmel_pdmic_interrupt, 0,
636 dd->irq, ret);
640 /* Get the minimal and maximal sample rate that the microphone supports */
666 ret = -ENOMEM;
692 .name = "atmel-pdmic",