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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/qcom/lpass-platform.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/qcom/lpass-platform.c')
-rw-r--r--sound/soc/qcom/lpass-platform.c1385
1 files changed, 1385 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
new file mode 100644
index 000000000..b41ab7a32
--- /dev/null
+++ b/sound/soc/qcom/lpass-platform.c
@@ -0,0 +1,1385 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * lpass-platform.c -- ALSA SoC platform driver for QTi LPASS
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "lpass-lpaif-reg.h"
+#include "lpass.h"
+
+#define DRV_NAME "lpass-platform"
+
+#define LPASS_PLATFORM_BUFFER_SIZE (24 * 2 * 1024)
+#define LPASS_PLATFORM_PERIODS 2
+#define LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE (8 * 1024)
+#define LPASS_VA_CDC_DMA_LPM_BUFF_SIZE (12 * 1024)
+#define LPASS_CDC_DMA_REGISTER_FIELDS_MAX 15
+
+static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16 |
+ SNDRV_PCM_FMTBIT_S24 |
+ SNDRV_PCM_FMTBIT_S32,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .rate_min = 8000,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+ .buffer_bytes_max = LPASS_PLATFORM_BUFFER_SIZE,
+ .period_bytes_max = LPASS_PLATFORM_BUFFER_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .period_bytes_min = LPASS_PLATFORM_BUFFER_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .periods_min = LPASS_PLATFORM_PERIODS,
+ .periods_max = LPASS_PLATFORM_PERIODS,
+ .fifo_size = 0,
+};
+
+static const struct snd_pcm_hardware lpass_platform_rxtx_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16 |
+ SNDRV_PCM_FMTBIT_S24 |
+ SNDRV_PCM_FMTBIT_S32,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .rate_min = 8000,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+ .buffer_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE,
+ .period_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .period_bytes_min = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .periods_min = LPASS_PLATFORM_PERIODS,
+ .periods_max = LPASS_PLATFORM_PERIODS,
+ .fifo_size = 0,
+};
+
+static const struct snd_pcm_hardware lpass_platform_va_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16 |
+ SNDRV_PCM_FMTBIT_S24 |
+ SNDRV_PCM_FMTBIT_S32,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .rate_min = 8000,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+ .buffer_bytes_max = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE,
+ .period_bytes_max = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .period_bytes_min = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .periods_min = LPASS_PLATFORM_PERIODS,
+ .periods_max = LPASS_PLATFORM_PERIODS,
+ .fifo_size = 0,
+};
+
+static int lpass_platform_alloc_rxtx_dmactl_fields(struct device *dev,
+ struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *rd_dmactl, *wr_dmactl;
+ int rval;
+
+ rd_dmactl = devm_kzalloc(dev, sizeof(*rd_dmactl), GFP_KERNEL);
+ if (!rd_dmactl)
+ return -ENOMEM;
+
+ wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL);
+ if (!wr_dmactl)
+ return -ENOMEM;
+
+ drvdata->rxtx_rd_dmactl = rd_dmactl;
+ drvdata->rxtx_wr_dmactl = wr_dmactl;
+
+ rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf,
+ &v->rxtx_rdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
+ if (rval)
+ return rval;
+
+ return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf,
+ &v->rxtx_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
+}
+
+static int lpass_platform_alloc_va_dmactl_fields(struct device *dev,
+ struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *wr_dmactl;
+
+ wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL);
+ if (!wr_dmactl)
+ return -ENOMEM;
+
+ drvdata->va_wr_dmactl = wr_dmactl;
+ return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf,
+ &v->va_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
+}
+
+
+static int lpass_platform_alloc_dmactl_fields(struct device *dev,
+ struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *rd_dmactl, *wr_dmactl;
+ int rval;
+
+ drvdata->rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
+ GFP_KERNEL);
+ if (drvdata->rd_dmactl == NULL)
+ return -ENOMEM;
+
+ drvdata->wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
+ GFP_KERNEL);
+ if (drvdata->wr_dmactl == NULL)
+ return -ENOMEM;
+
+ rd_dmactl = drvdata->rd_dmactl;
+ wr_dmactl = drvdata->wr_dmactl;
+
+ rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf,
+ &v->rdma_intf, 6);
+ if (rval)
+ return rval;
+
+ return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf,
+ &v->wrdma_intf, 6);
+}
+
+static int lpass_platform_alloc_hdmidmactl_fields(struct device *dev,
+ struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *rd_dmactl;
+
+ rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), GFP_KERNEL);
+ if (rd_dmactl == NULL)
+ return -ENOMEM;
+
+ drvdata->hdmi_rd_dmactl = rd_dmactl;
+
+ return devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->bursten,
+ &v->hdmi_rdma_bursten, 8);
+}
+
+static int lpass_platform_pcmops_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct lpass_variant *v = drvdata->variant;
+ int ret, dma_ch, dir = substream->stream;
+ struct lpass_pcm_data *data;
+ struct regmap *map;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ component->id = dai_id;
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->i2s_port = cpu_dai->driver->id;
+ runtime->private_data = data;
+
+ if (v->alloc_dma_channel)
+ dma_ch = v->alloc_dma_channel(drvdata, dir, dai_id);
+ else
+ dma_ch = 0;
+
+ if (dma_ch < 0) {
+ kfree(data);
+ return dma_ch;
+ }
+
+ switch (dai_id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ map = drvdata->lpaif_map;
+ drvdata->substream[dma_ch] = substream;
+ break;
+ case LPASS_DP_RX:
+ map = drvdata->hdmiif_map;
+ drvdata->hdmi_substream[dma_ch] = substream;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ map = drvdata->rxtx_lpaif_map;
+ drvdata->rxtx_substream[dma_ch] = substream;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ map = drvdata->va_lpaif_map;
+ drvdata->va_substream[dma_ch] = substream;
+ break;
+ default:
+ break;
+ }
+
+ data->dma_ch = dma_ch;
+ switch (dai_id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ case LPASS_DP_RX:
+ ret = regmap_write(map, LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0);
+ if (ret) {
+ kfree(data);
+ dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n", ret);
+ return ret;
+ }
+ snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
+ runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ snd_soc_set_runtime_hwparams(substream, &lpass_platform_rxtx_hardware);
+ runtime->dma_bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ snd_soc_set_runtime_hwparams(substream, &lpass_platform_va_hardware);
+ runtime->dma_bytes = lpass_platform_va_hardware.buffer_bytes_max;
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+ break;
+ default:
+ break;
+ }
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0) {
+ kfree(data);
+ dev_err(soc_runtime->dev, "setting constraints failed: %d\n",
+ ret);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpass_pcm_data *data;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ data = runtime->private_data;
+
+ switch (dai_id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ drvdata->substream[data->dma_ch] = NULL;
+ break;
+ case LPASS_DP_RX:
+ drvdata->hdmi_substream[data->dma_ch] = NULL;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ drvdata->rxtx_substream[data->dma_ch] = NULL;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ drvdata->va_substream[data->dma_ch] = NULL;
+ break;
+ default:
+ break;
+ }
+
+ if (v->free_dma_channel)
+ v->free_dma_channel(drvdata, data->dma_ch, dai_id);
+
+ kfree(data);
+ return 0;
+}
+
+static struct lpaif_dmactl *__lpass_get_dmactl_handle(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct lpaif_dmactl *dmactl = NULL;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dmactl = drvdata->rd_dmactl;
+ else
+ dmactl = drvdata->wr_dmactl;
+ break;
+ case LPASS_DP_RX:
+ dmactl = drvdata->hdmi_rd_dmactl;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ dmactl = drvdata->rxtx_rd_dmactl;
+ break;
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ dmactl = drvdata->rxtx_wr_dmactl;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ dmactl = drvdata->va_wr_dmactl;
+ break;
+ }
+
+ return dmactl;
+}
+
+static int __lpass_get_id(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ int id;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ id = pcm_data->dma_ch;
+ else
+ id = pcm_data->dma_ch - v->wrdma_channel_start;
+ break;
+ case LPASS_DP_RX:
+ id = pcm_data->dma_ch;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ id = pcm_data->dma_ch;
+ break;
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ id = pcm_data->dma_ch - v->va_wrdma_channel_start;
+ break;
+ }
+
+ return id;
+}
+
+static struct regmap *__lpass_get_regmap_handle(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct regmap *map = NULL;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ map = drvdata->lpaif_map;
+ break;
+ case LPASS_DP_RX:
+ map = drvdata->hdmiif_map;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ map = drvdata->rxtx_lpaif_map;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ map = drvdata->va_lpaif_map;
+ break;
+ }
+
+ return map;
+}
+
+static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ snd_pcm_format_t format = params_format(params);
+ unsigned int channels = params_channels(params);
+ unsigned int regval;
+ struct lpaif_dmactl *dmactl;
+ int id;
+ int bitwidth;
+ int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
+
+ bitwidth = snd_pcm_format_width(format);
+ if (bitwidth < 0) {
+ dev_err(soc_runtime->dev, "invalid bit width given: %d\n",
+ bitwidth);
+ return bitwidth;
+ }
+
+ ret = regmap_fields_write(dmactl->bursten, id, LPAIF_DMACTL_BURSTEN_INCR4);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating bursten field: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating fifowm field: %d\n", ret);
+ return ret;
+ }
+
+ switch (dai_id) {
+ case LPASS_DP_RX:
+ ret = regmap_fields_write(dmactl->burst8, id,
+ LPAIF_DMACTL_BURSTEN_INCR4);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating burst8en field: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_fields_write(dmactl->burst16, id,
+ LPAIF_DMACTL_BURSTEN_INCR4);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating burst16en field: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_fields_write(dmactl->dynburst, id,
+ LPAIF_DMACTL_BURSTEN_INCR4);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating dynbursten field: %d\n", ret);
+ return ret;
+ }
+ break;
+ case MI2S_PRIMARY:
+ case MI2S_SECONDARY:
+ case MI2S_TERTIARY:
+ case MI2S_QUATERNARY:
+ case MI2S_QUINARY:
+ ret = regmap_fields_write(dmactl->intf, id,
+ LPAIF_DMACTL_AUDINTF(dma_port));
+ if (ret) {
+ dev_err(soc_runtime->dev, "error updating audio interface field: %d\n",
+ ret);
+ return ret;
+ }
+
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX0:
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s: invalid interface: %d\n", __func__, dai_id);
+ break;
+ }
+ switch (bitwidth) {
+ case 16:
+ switch (channels) {
+ case 1:
+ case 2:
+ regval = LPAIF_DMACTL_WPSCNT_ONE;
+ break;
+ case 4:
+ regval = LPAIF_DMACTL_WPSCNT_TWO;
+ break;
+ case 6:
+ regval = LPAIF_DMACTL_WPSCNT_THREE;
+ break;
+ case 8:
+ regval = LPAIF_DMACTL_WPSCNT_FOUR;
+ break;
+ default:
+ dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n",
+ bitwidth, channels);
+ return -EINVAL;
+ }
+ break;
+ case 24:
+ case 32:
+ switch (channels) {
+ case 1:
+ regval = LPAIF_DMACTL_WPSCNT_ONE;
+ break;
+ case 2:
+ regval = (dai_id == LPASS_DP_RX ?
+ LPAIF_DMACTL_WPSCNT_ONE :
+ LPAIF_DMACTL_WPSCNT_TWO);
+ break;
+ case 4:
+ regval = (dai_id == LPASS_DP_RX ?
+ LPAIF_DMACTL_WPSCNT_TWO :
+ LPAIF_DMACTL_WPSCNT_FOUR);
+ break;
+ case 6:
+ regval = (dai_id == LPASS_DP_RX ?
+ LPAIF_DMACTL_WPSCNT_THREE :
+ LPAIF_DMACTL_WPSCNT_SIX);
+ break;
+ case 8:
+ regval = (dai_id == LPASS_DP_RX ?
+ LPAIF_DMACTL_WPSCNT_FOUR :
+ LPAIF_DMACTL_WPSCNT_EIGHT);
+ break;
+ default:
+ dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n",
+ bitwidth, channels);
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n",
+ bitwidth, channels);
+ return -EINVAL;
+ }
+
+ ret = regmap_fields_write(dmactl->wpscnt, id, regval);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to dmactl reg: %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_hw_free(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int reg;
+ int ret;
+ struct regmap *map;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ if (is_cdc_dma_port(dai_id))
+ return 0;
+ map = __lpass_get_regmap_handle(substream, component);
+
+ reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id);
+ ret = regmap_write(map, reg, 0);
+ if (ret)
+ dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
+ ret);
+
+ return ret;
+}
+
+static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *dmactl;
+ struct regmap *map;
+ int ret, id, ch, dir = substream->stream;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ ch = pcm_data->dma_ch;
+
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
+ map = __lpass_get_regmap_handle(substream, component);
+
+ ret = regmap_write(map, LPAIF_DMABASE_REG(v, ch, dir, dai_id),
+ runtime->dma_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to rdmabase reg: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = regmap_write(map, LPAIF_DMABUFF_REG(v, ch, dir, dai_id),
+ (snd_pcm_lib_buffer_bytes(substream) >> 2) - 1);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to rdmabuff reg: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = regmap_write(map, LPAIF_DMAPER_REG(v, ch, dir, dai_id),
+ (snd_pcm_lib_period_bytes(substream) >> 2) - 1);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to rdmaper reg: %d\n",
+ ret);
+ return ret;
+ }
+
+ if (is_cdc_dma_port(dai_id)) {
+ ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing fifowm field to dmactl reg: %d, id: %d\n",
+ ret, id);
+ return ret;
+ }
+ }
+ ret = regmap_fields_write(dmactl->enable, id, LPAIF_DMACTL_ENABLE_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *dmactl;
+ struct regmap *map;
+ int ret, ch, id;
+ unsigned int reg_irqclr = 0, val_irqclr = 0;
+ unsigned int reg_irqen = 0, val_irqen = 0, val_mask = 0;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ ch = pcm_data->dma_ch;
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
+ map = __lpass_get_regmap_handle(substream, component);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ret = regmap_fields_write(dmactl->enable, id,
+ LPAIF_DMACTL_ENABLE_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg: %d\n", ret);
+ return ret;
+ }
+ switch (dai_id) {
+ case LPASS_DP_RX:
+ ret = regmap_fields_write(dmactl->dyncclk, id,
+ LPAIF_DMACTL_DYNCLK_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg: %d\n", ret);
+ return ret;
+ }
+ reg_irqclr = LPASS_HDMITX_APP_IRQCLEAR_REG(v);
+ val_irqclr = (LPAIF_IRQ_ALL(ch) |
+ LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch));
+
+ reg_irqen = LPASS_HDMITX_APP_IRQEN_REG(v);
+ val_mask = (LPAIF_IRQ_ALL(ch) |
+ LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch));
+ val_irqen = (LPAIF_IRQ_ALL(ch) |
+ LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch));
+ break;
+ case MI2S_PRIMARY:
+ case MI2S_SECONDARY:
+ case MI2S_TERTIARY:
+ case MI2S_QUATERNARY:
+ case MI2S_QUINARY:
+ reg_irqclr = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_irqclr = LPAIF_IRQ_ALL(ch);
+
+
+ reg_irqen = LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = LPAIF_IRQ_ALL(ch);
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg field: %d\n", ret);
+ return ret;
+ }
+ reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_irqclr = LPAIF_IRQ_ALL(ch);
+
+ reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = LPAIF_IRQ_ALL(ch);
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg field: %d\n", ret);
+ return ret;
+ }
+ reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_irqclr = LPAIF_IRQ_ALL(ch);
+
+ reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = LPAIF_IRQ_ALL(ch);
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
+ return -EINVAL;
+ }
+
+ ret = regmap_write_bits(map, reg_irqclr, val_irqclr, val_irqclr);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to irqclear reg: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_update_bits(map, reg_irqen, val_mask, val_irqen);
+ if (ret) {
+ dev_err(soc_runtime->dev, "error writing to irqen reg: %d\n", ret);
+ return ret;
+ }
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ret = regmap_fields_write(dmactl->enable, id,
+ LPAIF_DMACTL_ENABLE_OFF);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg: %d\n", ret);
+ return ret;
+ }
+ switch (dai_id) {
+ case LPASS_DP_RX:
+ ret = regmap_fields_write(dmactl->dyncclk, id,
+ LPAIF_DMACTL_DYNCLK_OFF);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg: %d\n", ret);
+ return ret;
+ }
+ reg_irqen = LPASS_HDMITX_APP_IRQEN_REG(v);
+ val_mask = (LPAIF_IRQ_ALL(ch) |
+ LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch));
+ val_irqen = 0;
+ break;
+ case MI2S_PRIMARY:
+ case MI2S_SECONDARY:
+ case MI2S_TERTIARY:
+ case MI2S_QUATERNARY:
+ case MI2S_QUINARY:
+ reg_irqen = LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = 0;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg field: %d\n", ret);
+ return ret;
+ }
+
+ reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_irqclr = LPAIF_IRQ_ALL(ch);
+
+ reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = LPAIF_IRQ_ALL(ch);
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to rdmactl reg field: %d\n", ret);
+ return ret;
+ }
+
+ reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_irqclr = LPAIF_IRQ_ALL(ch);
+
+ reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
+ val_mask = LPAIF_IRQ_ALL(ch);
+ val_irqen = LPAIF_IRQ_ALL(ch);
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
+ return -EINVAL;
+ }
+
+ ret = regmap_update_bits(map, reg_irqen, val_mask, val_irqen);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error writing to irqen reg: %d\n", ret);
+ return ret;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
+ struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int base_addr, curr_addr;
+ int ret, ch, dir = substream->stream;
+ struct regmap *map;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ map = __lpass_get_regmap_handle(substream, component);
+ ch = pcm_data->dma_ch;
+
+ ret = regmap_read(map,
+ LPAIF_DMABASE_REG(v, ch, dir, dai_id), &base_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error reading from rdmabase reg: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_read(map,
+ LPAIF_DMACURR_REG(v, ch, dir, dai_id), &curr_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev,
+ "error reading from rdmacurr reg: %d\n", ret);
+ return ret;
+ }
+
+ return bytes_to_frames(substream->runtime, curr_addr - base_addr);
+}
+
+static int lpass_platform_cdc_dma_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned long size, offset;
+
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ size = vma->vm_end - vma->vm_start;
+ offset = vma->vm_pgoff << PAGE_SHIFT;
+ return io_remap_pfn_range(vma, vma->vm_start,
+ (runtime->dma_addr + offset) >> PAGE_SHIFT,
+ size, vma->vm_page_prot);
+
+}
+
+static int lpass_platform_pcmops_mmap(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ if (is_cdc_dma_port(dai_id))
+ return lpass_platform_cdc_dma_mmap(substream, vma);
+
+ return snd_pcm_lib_default_mmap(substream, vma);
+}
+
+static irqreturn_t lpass_dma_interrupt_handler(
+ struct snd_pcm_substream *substream,
+ struct lpass_data *drvdata,
+ int chan, u32 interrupts)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_variant *v = drvdata->variant;
+ irqreturn_t ret = IRQ_NONE;
+ int rv;
+ unsigned int reg, val, mask;
+ struct regmap *map;
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ mask = LPAIF_IRQ_ALL(chan);
+ switch (dai_id) {
+ case LPASS_DP_RX:
+ map = drvdata->hdmiif_map;
+ reg = LPASS_HDMITX_APP_IRQCLEAR_REG(v);
+ val = (LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(chan) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(chan));
+ break;
+ case MI2S_PRIMARY:
+ case MI2S_SECONDARY:
+ case MI2S_TERTIARY:
+ case MI2S_QUATERNARY:
+ case MI2S_QUINARY:
+ map = drvdata->lpaif_map;
+ reg = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val = 0;
+ break;
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ map = drvdata->rxtx_lpaif_map;
+ reg = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val = 0;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ map = drvdata->va_lpaif_map;
+ reg = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
+ val = 0;
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
+ return -EINVAL;
+ }
+ if (interrupts & LPAIF_IRQ_PER(chan)) {
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_PER(chan) | val));
+ if (rv) {
+ dev_err(soc_runtime->dev,
+ "error writing to irqclear reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+ snd_pcm_period_elapsed(substream);
+ ret = IRQ_HANDLED;
+ }
+
+ if (interrupts & LPAIF_IRQ_XRUN(chan)) {
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_XRUN(chan) | val));
+ if (rv) {
+ dev_err(soc_runtime->dev,
+ "error writing to irqclear reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+ dev_warn_ratelimited(soc_runtime->dev, "xrun warning\n");
+
+ snd_pcm_stop_xrun(substream);
+ ret = IRQ_HANDLED;
+ }
+
+ if (interrupts & LPAIF_IRQ_ERR(chan)) {
+ rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_ERR(chan) | val));
+ if (rv) {
+ dev_err(soc_runtime->dev,
+ "error writing to irqclear reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+ dev_err(soc_runtime->dev, "bus access error\n");
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
+ ret = IRQ_HANDLED;
+ }
+
+ if (interrupts & val) {
+ rv = regmap_write(map, reg, val);
+ if (rv) {
+ dev_err(soc_runtime->dev,
+ "error writing to irqclear reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+ ret = IRQ_HANDLED;
+ }
+
+ return ret;
+}
+
+static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data)
+{
+ struct lpass_data *drvdata = data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int irqs;
+ int rv, chan;
+
+ rv = regmap_read(drvdata->lpaif_map,
+ LPAIF_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs);
+ if (rv) {
+ pr_err("error reading from irqstat reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+
+ /* Handle per channel interrupts */
+ for (chan = 0; chan < LPASS_MAX_DMA_CHANNELS; chan++) {
+ if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->substream[chan]) {
+ rv = lpass_dma_interrupt_handler(
+ drvdata->substream[chan],
+ drvdata, chan, irqs);
+ if (rv != IRQ_HANDLED)
+ return rv;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t lpass_platform_hdmiif_irq(int irq, void *data)
+{
+ struct lpass_data *drvdata = data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int irqs;
+ int rv, chan;
+
+ rv = regmap_read(drvdata->hdmiif_map,
+ LPASS_HDMITX_APP_IRQSTAT_REG(v), &irqs);
+ if (rv) {
+ pr_err("error reading from irqstat reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+
+ /* Handle per channel interrupts */
+ for (chan = 0; chan < LPASS_MAX_HDMI_DMA_CHANNELS; chan++) {
+ if (irqs & (LPAIF_IRQ_ALL(chan) | LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(chan) |
+ LPAIF_IRQ_HDMI_METADONE |
+ LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(chan))
+ && drvdata->hdmi_substream[chan]) {
+ rv = lpass_dma_interrupt_handler(
+ drvdata->hdmi_substream[chan],
+ drvdata, chan, irqs);
+ if (rv != IRQ_HANDLED)
+ return rv;
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t lpass_platform_rxtxif_irq(int irq, void *data)
+{
+ struct lpass_data *drvdata = data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int irqs;
+ irqreturn_t rv;
+ int chan;
+
+ rv = regmap_read(drvdata->rxtx_lpaif_map,
+ LPAIF_RXTX_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs);
+
+ /* Handle per channel interrupts */
+ for (chan = 0; chan < LPASS_MAX_CDC_DMA_CHANNELS; chan++) {
+ if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->rxtx_substream[chan]) {
+ rv = lpass_dma_interrupt_handler(
+ drvdata->rxtx_substream[chan],
+ drvdata, chan, irqs);
+ if (rv != IRQ_HANDLED)
+ return rv;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t lpass_platform_vaif_irq(int irq, void *data)
+{
+ struct lpass_data *drvdata = data;
+ struct lpass_variant *v = drvdata->variant;
+ unsigned int irqs;
+ irqreturn_t rv;
+ int chan;
+
+ rv = regmap_read(drvdata->va_lpaif_map,
+ LPAIF_VA_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs);
+
+ /* Handle per channel interrupts */
+ for (chan = 0; chan < LPASS_MAX_VA_CDC_DMA_CHANNELS; chan++) {
+ if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->va_substream[chan]) {
+ rv = lpass_dma_interrupt_handler(
+ drvdata->va_substream[chan],
+ drvdata, chan, irqs);
+ if (rv != IRQ_HANDLED)
+ return rv;
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static int lpass_platform_prealloc_cdc_dma_buffer(struct snd_soc_component *component,
+ struct snd_pcm *pcm, int dai_id)
+{
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_substream *substream;
+ struct snd_dma_buffer *buf;
+
+ if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
+ substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ else
+ substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
+
+ buf = &substream->dma_buffer;
+ buf->dev.dev = pcm->card->dev;
+ buf->private_data = NULL;
+
+ /* Assign Codec DMA buffer pointers */
+ buf->dev.type = SNDRV_DMA_TYPE_CONTINUOUS;
+
+ switch (dai_id) {
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
+ buf->addr = drvdata->rxtx_cdc_dma_lpm_buf;
+ break;
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
+ buf->addr = drvdata->rxtx_cdc_dma_lpm_buf + LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE;
+ break;
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ buf->bytes = lpass_platform_va_hardware.buffer_bytes_max;
+ buf->addr = drvdata->va_cdc_dma_lpm_buf;
+ break;
+ default:
+ break;
+ }
+
+ buf->area = (unsigned char * __force)memremap(buf->addr, buf->bytes, MEMREMAP_WC);
+
+ return 0;
+}
+
+static int lpass_platform_pcm_new(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *soc_runtime)
+{
+ struct snd_pcm *pcm = soc_runtime->pcm;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ unsigned int dai_id = cpu_dai->driver->id;
+
+ size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
+
+ /*
+ * Lpass codec dma can access only lpass lpm hardware memory.
+ * ioremap is for HLOS to access hardware memory.
+ */
+ if (is_cdc_dma_port(dai_id))
+ return lpass_platform_prealloc_cdc_dma_buffer(component, pcm, dai_id);
+
+ return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+ component->dev, size);
+}
+
+static int lpass_platform_pcmops_suspend(struct snd_soc_component *component)
+{
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct regmap *map;
+ unsigned int dai_id = component->id;
+
+ if (dai_id == LPASS_DP_RX)
+ map = drvdata->hdmiif_map;
+ else
+ map = drvdata->lpaif_map;
+
+ regcache_cache_only(map, true);
+ regcache_mark_dirty(map);
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_resume(struct snd_soc_component *component)
+{
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct regmap *map;
+ unsigned int dai_id = component->id;
+
+ if (dai_id == LPASS_DP_RX)
+ map = drvdata->hdmiif_map;
+ else
+ map = drvdata->lpaif_map;
+
+ regcache_cache_only(map, false);
+ return regcache_sync(map);
+}
+
+static int lpass_platform_copy(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream, int channel,
+ unsigned long pos, void __user *buf, unsigned long bytes)
+{
+ struct snd_pcm_runtime *rt = substream->runtime;
+ unsigned int dai_id = component->id;
+ int ret = 0;
+
+ void __iomem *dma_buf = (void __iomem *) (rt->dma_area + pos +
+ channel * (rt->dma_bytes / rt->channels));
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ if (is_cdc_dma_port(dai_id)) {
+ ret = copy_from_user_toio(dma_buf, buf, bytes);
+ } else {
+ if (copy_from_user((void __force *)dma_buf, buf, bytes))
+ ret = -EFAULT;
+ }
+ } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ if (is_cdc_dma_port(dai_id)) {
+ ret = copy_to_user_fromio(buf, dma_buf, bytes);
+ } else {
+ if (copy_to_user(buf, (void __force *)dma_buf, bytes))
+ ret = -EFAULT;
+ }
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_component_driver lpass_component_driver = {
+ .name = DRV_NAME,
+ .open = lpass_platform_pcmops_open,
+ .close = lpass_platform_pcmops_close,
+ .hw_params = lpass_platform_pcmops_hw_params,
+ .hw_free = lpass_platform_pcmops_hw_free,
+ .prepare = lpass_platform_pcmops_prepare,
+ .trigger = lpass_platform_pcmops_trigger,
+ .pointer = lpass_platform_pcmops_pointer,
+ .mmap = lpass_platform_pcmops_mmap,
+ .pcm_construct = lpass_platform_pcm_new,
+ .suspend = lpass_platform_pcmops_suspend,
+ .resume = lpass_platform_pcmops_resume,
+ .copy_user = lpass_platform_copy,
+
+};
+
+int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata = platform_get_drvdata(pdev);
+ struct lpass_variant *v = drvdata->variant;
+ int ret;
+
+ drvdata->lpaif_irq = platform_get_irq_byname(pdev, "lpass-irq-lpaif");
+ if (drvdata->lpaif_irq < 0)
+ return -ENODEV;
+
+ /* ensure audio hardware is disabled */
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0);
+ if (ret) {
+ dev_err(&pdev->dev, "error writing to irqen reg: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_request_irq(&pdev->dev, drvdata->lpaif_irq,
+ lpass_platform_lpaif_irq, IRQF_TRIGGER_RISING,
+ "lpass-irq-lpaif", drvdata);
+ if (ret) {
+ dev_err(&pdev->dev, "irq request failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = lpass_platform_alloc_dmactl_fields(&pdev->dev,
+ drvdata->lpaif_map);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "error initializing dmactl fields: %d\n", ret);
+ return ret;
+ }
+
+ if (drvdata->codec_dma_enable) {
+ ret = regmap_write(drvdata->rxtx_lpaif_map,
+ LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
+ if (ret) {
+ dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_write(drvdata->va_lpaif_map,
+ LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
+ if (ret) {
+ dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret);
+ return ret;
+ }
+ drvdata->rxtxif_irq = platform_get_irq_byname(pdev, "lpass-irq-rxtxif");
+ if (drvdata->rxtxif_irq < 0)
+ return -ENODEV;
+
+ ret = devm_request_irq(&pdev->dev, drvdata->rxtxif_irq,
+ lpass_platform_rxtxif_irq, 0, "lpass-irq-rxtxif", drvdata);
+ if (ret) {
+ dev_err(&pdev->dev, "rxtx irq request failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = lpass_platform_alloc_rxtx_dmactl_fields(&pdev->dev,
+ drvdata->rxtx_lpaif_map);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "error initializing rxtx dmactl fields: %d\n", ret);
+ return ret;
+ }
+
+ drvdata->vaif_irq = platform_get_irq_byname(pdev, "lpass-irq-vaif");
+ if (drvdata->vaif_irq < 0)
+ return -ENODEV;
+
+ ret = devm_request_irq(&pdev->dev, drvdata->vaif_irq,
+ lpass_platform_vaif_irq, 0, "lpass-irq-vaif", drvdata);
+ if (ret) {
+ dev_err(&pdev->dev, "va irq request failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = lpass_platform_alloc_va_dmactl_fields(&pdev->dev,
+ drvdata->va_lpaif_map);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "error initializing va dmactl fields: %d\n", ret);
+ return ret;
+ }
+ }
+
+ if (drvdata->hdmi_port_enable) {
+ drvdata->hdmiif_irq = platform_get_irq_byname(pdev, "lpass-irq-hdmi");
+ if (drvdata->hdmiif_irq < 0)
+ return -ENODEV;
+
+ ret = devm_request_irq(&pdev->dev, drvdata->hdmiif_irq,
+ lpass_platform_hdmiif_irq, 0, "lpass-irq-hdmi", drvdata);
+ if (ret) {
+ dev_err(&pdev->dev, "irq hdmi request failed: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_write(drvdata->hdmiif_map,
+ LPASS_HDMITX_APP_IRQEN_REG(v), 0);
+ if (ret) {
+ dev_err(&pdev->dev, "error writing to hdmi irqen reg: %d\n", ret);
+ return ret;
+ }
+
+ ret = lpass_platform_alloc_hdmidmactl_fields(&pdev->dev,
+ drvdata->hdmiif_map);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "error initializing hdmidmactl fields: %d\n", ret);
+ return ret;
+ }
+ }
+ return devm_snd_soc_register_component(&pdev->dev,
+ &lpass_component_driver, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_platform_register);
+
+MODULE_DESCRIPTION("QTi LPASS Platform Driver");
+MODULE_LICENSE("GPL v2");