260 lines
6.9 KiB
C
260 lines
6.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 and
|
||
|
|
* only version 2 as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* lpass-apq8016.c -- ALSA SoC CPU DAI driver for APQ8016 LPASS
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include <linux/clk.h>
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/err.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/of.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <sound/pcm.h>
|
||
|
|
#include <sound/pcm_params.h>
|
||
|
|
#include <sound/soc.h>
|
||
|
|
#include <sound/soc-dai.h>
|
||
|
|
|
||
|
|
#include <dt-bindings/sound/apq8016-lpass.h>
|
||
|
|
#include "lpass-lpaif-reg.h"
|
||
|
|
#include "lpass.h"
|
||
|
|
|
||
|
|
static struct snd_soc_dai_driver apq8016_lpass_cpu_dai_driver[] = {
|
||
|
|
[MI2S_PRIMARY] = {
|
||
|
|
.id = MI2S_PRIMARY,
|
||
|
|
.name = "Primary MI2S",
|
||
|
|
.playback = {
|
||
|
|
.stream_name = "Primary Playback",
|
||
|
|
.formats = SNDRV_PCM_FMTBIT_S16 |
|
||
|
|
SNDRV_PCM_FMTBIT_S24 |
|
||
|
|
SNDRV_PCM_FMTBIT_S32,
|
||
|
|
.rates = SNDRV_PCM_RATE_8000 |
|
||
|
|
SNDRV_PCM_RATE_16000 |
|
||
|
|
SNDRV_PCM_RATE_32000 |
|
||
|
|
SNDRV_PCM_RATE_48000 |
|
||
|
|
SNDRV_PCM_RATE_96000,
|
||
|
|
.rate_min = 8000,
|
||
|
|
.rate_max = 96000,
|
||
|
|
.channels_min = 1,
|
||
|
|
.channels_max = 8,
|
||
|
|
},
|
||
|
|
.probe = &asoc_qcom_lpass_cpu_dai_probe,
|
||
|
|
.ops = &asoc_qcom_lpass_cpu_dai_ops,
|
||
|
|
},
|
||
|
|
[MI2S_SECONDARY] = {
|
||
|
|
.id = MI2S_SECONDARY,
|
||
|
|
.name = "Secondary MI2S",
|
||
|
|
.playback = {
|
||
|
|
.stream_name = "Secondary Playback",
|
||
|
|
.formats = SNDRV_PCM_FMTBIT_S16 |
|
||
|
|
SNDRV_PCM_FMTBIT_S24 |
|
||
|
|
SNDRV_PCM_FMTBIT_S32,
|
||
|
|
.rates = SNDRV_PCM_RATE_8000 |
|
||
|
|
SNDRV_PCM_RATE_16000 |
|
||
|
|
SNDRV_PCM_RATE_32000 |
|
||
|
|
SNDRV_PCM_RATE_48000 |
|
||
|
|
SNDRV_PCM_RATE_96000,
|
||
|
|
.rate_min = 8000,
|
||
|
|
.rate_max = 96000,
|
||
|
|
.channels_min = 1,
|
||
|
|
.channels_max = 8,
|
||
|
|
},
|
||
|
|
.probe = &asoc_qcom_lpass_cpu_dai_probe,
|
||
|
|
.ops = &asoc_qcom_lpass_cpu_dai_ops,
|
||
|
|
},
|
||
|
|
[MI2S_TERTIARY] = {
|
||
|
|
.id = MI2S_TERTIARY,
|
||
|
|
.name = "Tertiary MI2S",
|
||
|
|
.capture = {
|
||
|
|
.stream_name = "Tertiary Capture",
|
||
|
|
.formats = SNDRV_PCM_FMTBIT_S16 |
|
||
|
|
SNDRV_PCM_FMTBIT_S24 |
|
||
|
|
SNDRV_PCM_FMTBIT_S32,
|
||
|
|
.rates = SNDRV_PCM_RATE_8000 |
|
||
|
|
SNDRV_PCM_RATE_16000 |
|
||
|
|
SNDRV_PCM_RATE_32000 |
|
||
|
|
SNDRV_PCM_RATE_48000 |
|
||
|
|
SNDRV_PCM_RATE_96000,
|
||
|
|
.rate_min = 8000,
|
||
|
|
.rate_max = 96000,
|
||
|
|
.channels_min = 1,
|
||
|
|
.channels_max = 8,
|
||
|
|
},
|
||
|
|
.probe = &asoc_qcom_lpass_cpu_dai_probe,
|
||
|
|
.ops = &asoc_qcom_lpass_cpu_dai_ops,
|
||
|
|
},
|
||
|
|
[MI2S_QUATERNARY] = {
|
||
|
|
.id = MI2S_QUATERNARY,
|
||
|
|
.name = "Quatenary MI2S",
|
||
|
|
.playback = {
|
||
|
|
.stream_name = "Quatenary Playback",
|
||
|
|
.formats = SNDRV_PCM_FMTBIT_S16 |
|
||
|
|
SNDRV_PCM_FMTBIT_S24 |
|
||
|
|
SNDRV_PCM_FMTBIT_S32,
|
||
|
|
.rates = SNDRV_PCM_RATE_8000 |
|
||
|
|
SNDRV_PCM_RATE_16000 |
|
||
|
|
SNDRV_PCM_RATE_32000 |
|
||
|
|
SNDRV_PCM_RATE_48000 |
|
||
|
|
SNDRV_PCM_RATE_96000,
|
||
|
|
.rate_min = 8000,
|
||
|
|
.rate_max = 96000,
|
||
|
|
.channels_min = 1,
|
||
|
|
.channels_max = 8,
|
||
|
|
},
|
||
|
|
.capture = {
|
||
|
|
.stream_name = "Quatenary Capture",
|
||
|
|
.formats = SNDRV_PCM_FMTBIT_S16 |
|
||
|
|
SNDRV_PCM_FMTBIT_S24 |
|
||
|
|
SNDRV_PCM_FMTBIT_S32,
|
||
|
|
.rates = SNDRV_PCM_RATE_8000 |
|
||
|
|
SNDRV_PCM_RATE_16000 |
|
||
|
|
SNDRV_PCM_RATE_32000 |
|
||
|
|
SNDRV_PCM_RATE_48000 |
|
||
|
|
SNDRV_PCM_RATE_96000,
|
||
|
|
.rate_min = 8000,
|
||
|
|
.rate_max = 96000,
|
||
|
|
.channels_min = 1,
|
||
|
|
.channels_max = 8,
|
||
|
|
},
|
||
|
|
.probe = &asoc_qcom_lpass_cpu_dai_probe,
|
||
|
|
.ops = &asoc_qcom_lpass_cpu_dai_ops,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata,
|
||
|
|
int direction)
|
||
|
|
{
|
||
|
|
struct lpass_variant *v = drvdata->variant;
|
||
|
|
int chan = 0;
|
||
|
|
|
||
|
|
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
|
||
|
|
chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
|
||
|
|
v->rdma_channels);
|
||
|
|
|
||
|
|
if (chan >= v->rdma_channels)
|
||
|
|
return -EBUSY;
|
||
|
|
} else {
|
||
|
|
chan = find_next_zero_bit(&drvdata->dma_ch_bit_map,
|
||
|
|
v->wrdma_channel_start +
|
||
|
|
v->wrdma_channels,
|
||
|
|
v->wrdma_channel_start);
|
||
|
|
|
||
|
|
if (chan >= v->wrdma_channel_start + v->wrdma_channels)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
|
||
|
|
set_bit(chan, &drvdata->dma_ch_bit_map);
|
||
|
|
|
||
|
|
return chan;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
|
||
|
|
{
|
||
|
|
clear_bit(chan, &drvdata->dma_ch_bit_map);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int apq8016_lpass_init(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct lpass_data *drvdata = platform_get_drvdata(pdev);
|
||
|
|
struct device *dev = &pdev->dev;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
|
||
|
|
if (IS_ERR(drvdata->pcnoc_mport_clk)) {
|
||
|
|
dev_err(&pdev->dev, "%s() error getting pcnoc-mport-clk: %ld\n",
|
||
|
|
__func__, PTR_ERR(drvdata->pcnoc_mport_clk));
|
||
|
|
return PTR_ERR(drvdata->pcnoc_mport_clk);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "%s() Error enabling pcnoc-mport-clk: %d\n",
|
||
|
|
__func__, ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
|
||
|
|
if (IS_ERR(drvdata->pcnoc_sway_clk)) {
|
||
|
|
dev_err(&pdev->dev, "%s() error getting pcnoc-sway-clk: %ld\n",
|
||
|
|
__func__, PTR_ERR(drvdata->pcnoc_sway_clk));
|
||
|
|
return PTR_ERR(drvdata->pcnoc_sway_clk);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "%s() Error enabling pcnoc_sway_clk: %d\n",
|
||
|
|
__func__, ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int apq8016_lpass_exit(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct lpass_data *drvdata = platform_get_drvdata(pdev);
|
||
|
|
|
||
|
|
clk_disable_unprepare(drvdata->pcnoc_mport_clk);
|
||
|
|
clk_disable_unprepare(drvdata->pcnoc_sway_clk);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static struct lpass_variant apq8016_data = {
|
||
|
|
.i2sctrl_reg_base = 0x1000,
|
||
|
|
.i2sctrl_reg_stride = 0x1000,
|
||
|
|
.i2s_ports = 4,
|
||
|
|
.irq_reg_base = 0x6000,
|
||
|
|
.irq_reg_stride = 0x1000,
|
||
|
|
.irq_ports = 3,
|
||
|
|
.rdma_reg_base = 0x8400,
|
||
|
|
.rdma_reg_stride = 0x1000,
|
||
|
|
.rdma_channels = 2,
|
||
|
|
.dmactl_audif_start = 1,
|
||
|
|
.wrdma_reg_base = 0xB000,
|
||
|
|
.wrdma_reg_stride = 0x1000,
|
||
|
|
.wrdma_channel_start = 5,
|
||
|
|
.wrdma_channels = 2,
|
||
|
|
.dai_driver = apq8016_lpass_cpu_dai_driver,
|
||
|
|
.num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver),
|
||
|
|
.init = apq8016_lpass_init,
|
||
|
|
.exit = apq8016_lpass_exit,
|
||
|
|
.alloc_dma_channel = apq8016_lpass_alloc_dma_channel,
|
||
|
|
.free_dma_channel = apq8016_lpass_free_dma_channel,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct of_device_id apq8016_lpass_cpu_device_id[] = {
|
||
|
|
{ .compatible = "qcom,lpass-cpu-apq8016", .data = &apq8016_data },
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, apq8016_lpass_cpu_device_id);
|
||
|
|
|
||
|
|
static struct platform_driver apq8016_lpass_cpu_platform_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "apq8016-lpass-cpu",
|
||
|
|
.of_match_table = of_match_ptr(apq8016_lpass_cpu_device_id),
|
||
|
|
},
|
||
|
|
.probe = asoc_qcom_lpass_cpu_platform_probe,
|
||
|
|
.remove = asoc_qcom_lpass_cpu_platform_remove,
|
||
|
|
};
|
||
|
|
module_platform_driver(apq8016_lpass_cpu_platform_driver);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("APQ8016 LPASS CPU Driver");
|
||
|
|
MODULE_LICENSE("GPL v2");
|
||
|
|
|