123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
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* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* lpass-ipq806x.c -- ALSA SoC CPU DAI driver for QTi LPASS
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* Splited out the IPQ8064 soc specific from lpass-cpu.c
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*/
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include "lpass-lpaif-reg.h"
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#include "lpass.h"
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enum lpaif_i2s_ports {
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IPQ806X_LPAIF_I2S_PORT_CODEC_SPK,
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IPQ806X_LPAIF_I2S_PORT_CODEC_MIC,
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IPQ806X_LPAIF_I2S_PORT_SEC_SPK,
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IPQ806X_LPAIF_I2S_PORT_SEC_MIC,
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IPQ806X_LPAIF_I2S_PORT_MI2S,
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};
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enum lpaif_dma_channels {
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IPQ806X_LPAIF_RDMA_CHAN_MI2S,
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IPQ806X_LPAIF_RDMA_CHAN_PCM0,
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IPQ806X_LPAIF_RDMA_CHAN_PCM1,
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};
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static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = {
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.id = IPQ806X_LPAIF_I2S_PORT_MI2S,
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.playback = {
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.stream_name = "lpass-cpu-playback",
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.formats = SNDRV_PCM_FMTBIT_S16 |
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SNDRV_PCM_FMTBIT_S24 |
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SNDRV_PCM_FMTBIT_S32,
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.rates = SNDRV_PCM_RATE_8000 |
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SNDRV_PCM_RATE_16000 |
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SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_96000,
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.rate_min = 8000,
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.rate_max = 96000,
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.channels_min = 1,
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.channels_max = 8,
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},
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.probe = &asoc_qcom_lpass_cpu_dai_probe,
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.ops = &asoc_qcom_lpass_cpu_dai_ops,
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};
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static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir)
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{
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if (dir == SNDRV_PCM_STREAM_PLAYBACK)
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return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
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else /* Capture currently not implemented */
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return -EINVAL;
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}
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static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
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{
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return 0;
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}
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static struct lpass_variant ipq806x_data = {
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.i2sctrl_reg_base = 0x0010,
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.i2sctrl_reg_stride = 0x04,
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.i2s_ports = 5,
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.irq_reg_base = 0x3000,
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.irq_reg_stride = 0x1000,
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.irq_ports = 3,
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.rdma_reg_base = 0x6000,
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.rdma_reg_stride = 0x1000,
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.rdma_channels = 4,
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.wrdma_reg_base = 0xB000,
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.wrdma_reg_stride = 0x1000,
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.wrdma_channel_start = 5,
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.wrdma_channels = 4,
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.dai_driver = &ipq806x_lpass_cpu_dai_driver,
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.num_dai = 1,
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.dai_osr_clk_names = (const char *[]) {
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"mi2s-osr-clk",
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},
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.dai_bit_clk_names = (const char *[]) {
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"mi2s-bit-clk",
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},
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.alloc_dma_channel = ipq806x_lpass_alloc_dma_channel,
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.free_dma_channel = ipq806x_lpass_free_dma_channel,
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};
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static const struct of_device_id ipq806x_lpass_cpu_device_id[] = {
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{ .compatible = "qcom,lpass-cpu", .data = &ipq806x_data },
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{}
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};
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MODULE_DEVICE_TABLE(of, ipq806x_lpass_cpu_device_id);
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static struct platform_driver ipq806x_lpass_cpu_platform_driver = {
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.driver = {
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.name = "lpass-cpu",
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.of_match_table = of_match_ptr(ipq806x_lpass_cpu_device_id),
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},
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.probe = asoc_qcom_lpass_cpu_platform_probe,
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.remove = asoc_qcom_lpass_cpu_platform_remove,
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};
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module_platform_driver(ipq806x_lpass_cpu_platform_driver);
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MODULE_DESCRIPTION("QTi LPASS CPU Driver");
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MODULE_LICENSE("GPL v2");
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