cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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jive_wm8750.c (3416B)

      1// SPDX-License-Identifier: GPL-2.0
      2//
      3// Copyright 2007,2008 Simtec Electronics
      4//
      5// Based on sound/soc/pxa/spitz.c
      6//	Copyright 2005 Wolfson Microelectronics PLC.
      7//	Copyright 2005 Openedhand Ltd.
      8
      9#include <linux/module.h>
     10#include <sound/soc.h>
     11
     12#include <asm/mach-types.h>
     13
     14#include "s3c2412-i2s.h"
     15#include "../codecs/wm8750.h"
     16
     17static const struct snd_soc_dapm_route audio_map[] = {
     18	{ "Headphone Jack", NULL, "LOUT1" },
     19	{ "Headphone Jack", NULL, "ROUT1" },
     20	{ "Internal Speaker", NULL, "LOUT2" },
     21	{ "Internal Speaker", NULL, "ROUT2" },
     22	{ "LINPUT1", NULL, "Line Input" },
     23	{ "RINPUT1", NULL, "Line Input" },
     24};
     25
     26static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
     27	SND_SOC_DAPM_HP("Headphone Jack", NULL),
     28	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
     29	SND_SOC_DAPM_LINE("Line In", NULL),
     30};
     31
     32static int jive_hw_params(struct snd_pcm_substream *substream,
     33			  struct snd_pcm_hw_params *params)
     34{
     35	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
     36	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
     37	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
     38	struct s3c_i2sv2_rate_calc div;
     39	unsigned int clk = 0;
     40	int ret = 0;
     41
     42	switch (params_rate(params)) {
     43	case 8000:
     44	case 16000:
     45	case 48000:
     46	case 96000:
     47		clk = 12288000;
     48		break;
     49	case 11025:
     50	case 22050:
     51	case 44100:
     52		clk = 11289600;
     53		break;
     54	}
     55
     56	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
     57				s3c_i2sv2_get_clock(cpu_dai));
     58
     59	/* set the codec system clock for DAC and ADC */
     60	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
     61				     SND_SOC_CLOCK_IN);
     62	if (ret < 0)
     63		return ret;
     64
     65	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
     66	if (ret < 0)
     67		return ret;
     68
     69	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
     70				     div.clk_div - 1);
     71	if (ret < 0)
     72		return ret;
     73
     74	return 0;
     75}
     76
     77static const struct snd_soc_ops jive_ops = {
     78	.hw_params	= jive_hw_params,
     79};
     80
     81SND_SOC_DAILINK_DEFS(wm8750,
     82	DAILINK_COMP_ARRAY(COMP_CPU("s3c2412-i2s")),
     83	DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001a", "wm8750-hifi")),
     84	DAILINK_COMP_ARRAY(COMP_PLATFORM("s3c2412-i2s")));
     85
     86static struct snd_soc_dai_link jive_dai = {
     87	.name		= "wm8750",
     88	.stream_name	= "WM8750",
     89	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
     90			  SND_SOC_DAIFMT_CBS_CFS,
     91	.ops		= &jive_ops,
     92	SND_SOC_DAILINK_REG(wm8750),
     93};
     94
     95/* jive audio machine driver */
     96static struct snd_soc_card snd_soc_machine_jive = {
     97	.name		= "Jive",
     98	.owner		= THIS_MODULE,
     99	.dai_link	= &jive_dai,
    100	.num_links	= 1,
    101
    102	.dapm_widgets	= wm8750_dapm_widgets,
    103	.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
    104	.dapm_routes	= audio_map,
    105	.num_dapm_routes = ARRAY_SIZE(audio_map),
    106	.fully_routed	= true,
    107};
    108
    109static struct platform_device *jive_snd_device;
    110
    111static int __init jive_init(void)
    112{
    113	int ret;
    114
    115	if (!machine_is_jive())
    116		return 0;
    117
    118	printk("JIVE WM8750 Audio support\n");
    119
    120	jive_snd_device = platform_device_alloc("soc-audio", -1);
    121	if (!jive_snd_device)
    122		return -ENOMEM;
    123
    124	platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
    125	ret = platform_device_add(jive_snd_device);
    126
    127	if (ret)
    128		platform_device_put(jive_snd_device);
    129
    130	return ret;
    131}
    132
    133static void __exit jive_exit(void)
    134{
    135	platform_device_unregister(jive_snd_device);
    136}
    137
    138module_init(jive_init);
    139module_exit(jive_exit);
    140
    141MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
    142MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
    143MODULE_LICENSE("GPL");