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/*
* 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-ipq806x.c -- ALSA SoC CPU DAI driver for QTi LPASS
* Splited out the IPQ8064 soc specific from lpass-cpu.c
*/
#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/soc.h>
#include <sound/soc-dai.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"
enum lpaif_i2s_ports {
IPQ806X_LPAIF_I2S_PORT_CODEC_SPK,
IPQ806X_LPAIF_I2S_PORT_CODEC_MIC,
IPQ806X_LPAIF_I2S_PORT_SEC_SPK,
IPQ806X_LPAIF_I2S_PORT_SEC_MIC,
IPQ806X_LPAIF_I2S_PORT_MI2S,
};
enum lpaif_dma_channels {
IPQ806X_LPAIF_RDMA_CHAN_MI2S,
IPQ806X_LPAIF_RDMA_CHAN_PCM0,
IPQ806X_LPAIF_RDMA_CHAN_PCM1,
};
static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = {
.id = IPQ806X_LPAIF_I2S_PORT_MI2S,
.playback = {
.stream_name = "lpass-cpu-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,
};
static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir)
{
if (dir == SNDRV_PCM_STREAM_PLAYBACK)
return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
else /* Capture currently not implemented */
return -EINVAL;
}
static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
{
return 0;
}
static struct lpass_variant ipq806x_data = {
.i2sctrl_reg_base = 0x0010,
.i2sctrl_reg_stride = 0x04,
.i2s_ports = 5,
.irq_reg_base = 0x3000,
.irq_reg_stride = 0x1000,
.irq_ports = 3,
.rdma_reg_base = 0x6000,
.rdma_reg_stride = 0x1000,
.rdma_channels = 4,
.wrdma_reg_base = 0xB000,
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 4,
.dai_driver = &ipq806x_lpass_cpu_dai_driver,
.num_dai = 1,
.alloc_dma_channel = ipq806x_lpass_alloc_dma_channel,
.free_dma_channel = ipq806x_lpass_free_dma_channel,
};
static const struct of_device_id ipq806x_lpass_cpu_device_id[] = {
{ .compatible = "qcom,lpass-cpu", .data = &ipq806x_data },
{}
};
MODULE_DEVICE_TABLE(of, ipq806x_lpass_cpu_device_id);
static struct platform_driver ipq806x_lpass_cpu_platform_driver = {
.driver = {
.name = "lpass-cpu",
.of_match_table = of_match_ptr(ipq806x_lpass_cpu_device_id),
},
.probe = asoc_qcom_lpass_cpu_platform_probe,
.remove = asoc_qcom_lpass_cpu_platform_remove,
};
module_platform_driver(ipq806x_lpass_cpu_platform_driver);
MODULE_DESCRIPTION("QTi LPASS CPU Driver");
MODULE_LICENSE("GPL v2");
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