1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun //
3*4882a593Smuzhiyun // Copyright 2007,2008 Simtec Electronics
4*4882a593Smuzhiyun //
5*4882a593Smuzhiyun // Based on sound/soc/pxa/spitz.c
6*4882a593Smuzhiyun // Copyright 2005 Wolfson Microelectronics PLC.
7*4882a593Smuzhiyun // Copyright 2005 Openedhand Ltd.
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/module.h>
10*4882a593Smuzhiyun #include <sound/soc.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <asm/mach-types.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include "s3c2412-i2s.h"
15*4882a593Smuzhiyun #include "../codecs/wm8750.h"
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun static const struct snd_soc_dapm_route audio_map[] = {
18*4882a593Smuzhiyun { "Headphone Jack", NULL, "LOUT1" },
19*4882a593Smuzhiyun { "Headphone Jack", NULL, "ROUT1" },
20*4882a593Smuzhiyun { "Internal Speaker", NULL, "LOUT2" },
21*4882a593Smuzhiyun { "Internal Speaker", NULL, "ROUT2" },
22*4882a593Smuzhiyun { "LINPUT1", NULL, "Line Input" },
23*4882a593Smuzhiyun { "RINPUT1", NULL, "Line Input" },
24*4882a593Smuzhiyun };
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
27*4882a593Smuzhiyun SND_SOC_DAPM_HP("Headphone Jack", NULL),
28*4882a593Smuzhiyun SND_SOC_DAPM_SPK("Internal Speaker", NULL),
29*4882a593Smuzhiyun SND_SOC_DAPM_LINE("Line In", NULL),
30*4882a593Smuzhiyun };
31*4882a593Smuzhiyun
jive_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)32*4882a593Smuzhiyun static int jive_hw_params(struct snd_pcm_substream *substream,
33*4882a593Smuzhiyun struct snd_pcm_hw_params *params)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
36*4882a593Smuzhiyun struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
37*4882a593Smuzhiyun struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
38*4882a593Smuzhiyun struct s3c_i2sv2_rate_calc div;
39*4882a593Smuzhiyun unsigned int clk = 0;
40*4882a593Smuzhiyun int ret = 0;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun switch (params_rate(params)) {
43*4882a593Smuzhiyun case 8000:
44*4882a593Smuzhiyun case 16000:
45*4882a593Smuzhiyun case 48000:
46*4882a593Smuzhiyun case 96000:
47*4882a593Smuzhiyun clk = 12288000;
48*4882a593Smuzhiyun break;
49*4882a593Smuzhiyun case 11025:
50*4882a593Smuzhiyun case 22050:
51*4882a593Smuzhiyun case 44100:
52*4882a593Smuzhiyun clk = 11289600;
53*4882a593Smuzhiyun break;
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
57*4882a593Smuzhiyun s3c_i2sv2_get_clock(cpu_dai));
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* set the codec system clock for DAC and ADC */
60*4882a593Smuzhiyun ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
61*4882a593Smuzhiyun SND_SOC_CLOCK_IN);
62*4882a593Smuzhiyun if (ret < 0)
63*4882a593Smuzhiyun return ret;
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
66*4882a593Smuzhiyun if (ret < 0)
67*4882a593Smuzhiyun return ret;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
70*4882a593Smuzhiyun div.clk_div - 1);
71*4882a593Smuzhiyun if (ret < 0)
72*4882a593Smuzhiyun return ret;
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun return 0;
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun static const struct snd_soc_ops jive_ops = {
78*4882a593Smuzhiyun .hw_params = jive_hw_params,
79*4882a593Smuzhiyun };
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun SND_SOC_DAILINK_DEFS(wm8750,
82*4882a593Smuzhiyun DAILINK_COMP_ARRAY(COMP_CPU("s3c2412-i2s")),
83*4882a593Smuzhiyun DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001a", "wm8750-hifi")),
84*4882a593Smuzhiyun DAILINK_COMP_ARRAY(COMP_PLATFORM("s3c2412-i2s")));
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun static struct snd_soc_dai_link jive_dai = {
87*4882a593Smuzhiyun .name = "wm8750",
88*4882a593Smuzhiyun .stream_name = "WM8750",
89*4882a593Smuzhiyun .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
90*4882a593Smuzhiyun SND_SOC_DAIFMT_CBS_CFS,
91*4882a593Smuzhiyun .ops = &jive_ops,
92*4882a593Smuzhiyun SND_SOC_DAILINK_REG(wm8750),
93*4882a593Smuzhiyun };
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun /* jive audio machine driver */
96*4882a593Smuzhiyun static struct snd_soc_card snd_soc_machine_jive = {
97*4882a593Smuzhiyun .name = "Jive",
98*4882a593Smuzhiyun .owner = THIS_MODULE,
99*4882a593Smuzhiyun .dai_link = &jive_dai,
100*4882a593Smuzhiyun .num_links = 1,
101*4882a593Smuzhiyun
102*4882a593Smuzhiyun .dapm_widgets = wm8750_dapm_widgets,
103*4882a593Smuzhiyun .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
104*4882a593Smuzhiyun .dapm_routes = audio_map,
105*4882a593Smuzhiyun .num_dapm_routes = ARRAY_SIZE(audio_map),
106*4882a593Smuzhiyun .fully_routed = true,
107*4882a593Smuzhiyun };
108*4882a593Smuzhiyun
109*4882a593Smuzhiyun static struct platform_device *jive_snd_device;
110*4882a593Smuzhiyun
jive_init(void)111*4882a593Smuzhiyun static int __init jive_init(void)
112*4882a593Smuzhiyun {
113*4882a593Smuzhiyun int ret;
114*4882a593Smuzhiyun
115*4882a593Smuzhiyun if (!machine_is_jive())
116*4882a593Smuzhiyun return 0;
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun printk("JIVE WM8750 Audio support\n");
119*4882a593Smuzhiyun
120*4882a593Smuzhiyun jive_snd_device = platform_device_alloc("soc-audio", -1);
121*4882a593Smuzhiyun if (!jive_snd_device)
122*4882a593Smuzhiyun return -ENOMEM;
123*4882a593Smuzhiyun
124*4882a593Smuzhiyun platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
125*4882a593Smuzhiyun ret = platform_device_add(jive_snd_device);
126*4882a593Smuzhiyun
127*4882a593Smuzhiyun if (ret)
128*4882a593Smuzhiyun platform_device_put(jive_snd_device);
129*4882a593Smuzhiyun
130*4882a593Smuzhiyun return ret;
131*4882a593Smuzhiyun }
132*4882a593Smuzhiyun
jive_exit(void)133*4882a593Smuzhiyun static void __exit jive_exit(void)
134*4882a593Smuzhiyun {
135*4882a593Smuzhiyun platform_device_unregister(jive_snd_device);
136*4882a593Smuzhiyun }
137*4882a593Smuzhiyun
138*4882a593Smuzhiyun module_init(jive_init);
139*4882a593Smuzhiyun module_exit(jive_exit);
140*4882a593Smuzhiyun
141*4882a593Smuzhiyun MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
142*4882a593Smuzhiyun MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
143*4882a593Smuzhiyun MODULE_LICENSE("GPL");
144