Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 2 | /* |
| 3 | * linux/sound/soc/pxa/z2.c |
| 4 | * |
| 5 | * SoC Audio driver for Aeronix Zipit Z2 |
| 6 | * |
| 7 | * Copyright (C) 2009 Ken McGuire <kenm@desertweyr.com> |
| 8 | * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com> |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/moduleparam.h> |
| 13 | #include <linux/timer.h> |
| 14 | #include <linux/interrupt.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/gpio.h> |
| 17 | |
| 18 | #include <sound/core.h> |
| 19 | #include <sound/pcm.h> |
| 20 | #include <sound/soc.h> |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 21 | #include <sound/jack.h> |
| 22 | |
| 23 | #include <asm/mach-types.h> |
| 24 | #include <mach/hardware.h> |
| 25 | #include <mach/audio.h> |
| 26 | #include <mach/z2.h> |
| 27 | |
| 28 | #include "../codecs/wm8750.h" |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 29 | #include "pxa2xx-i2s.h" |
| 30 | |
| 31 | static struct snd_soc_card snd_soc_z2; |
| 32 | |
| 33 | static int z2_hw_params(struct snd_pcm_substream *substream, |
| 34 | struct snd_pcm_hw_params *params) |
| 35 | { |
Kuninori Morimoto | 83b95c2 | 2020-07-20 10:18:20 +0900 | [diff] [blame] | 36 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
Kuninori Morimoto | 8d8fef2 | 2020-03-23 14:19:49 +0900 | [diff] [blame] | 37 | struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| 38 | struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 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 | |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 56 | /* set the codec system clock for DAC and ADC */ |
| 57 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, |
| 58 | SND_SOC_CLOCK_IN); |
| 59 | if (ret < 0) |
| 60 | return ret; |
| 61 | |
| 62 | /* set the I2S system clock as input (unused) */ |
| 63 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
| 64 | SND_SOC_CLOCK_IN); |
| 65 | if (ret < 0) |
| 66 | return ret; |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | static struct snd_soc_jack hs_jack; |
| 72 | |
| 73 | /* Headset jack detection DAPM pins */ |
| 74 | static struct snd_soc_jack_pin hs_jack_pins[] = { |
| 75 | { |
| 76 | .pin = "Mic Jack", |
| 77 | .mask = SND_JACK_MICROPHONE, |
| 78 | }, |
| 79 | { |
| 80 | .pin = "Headphone Jack", |
| 81 | .mask = SND_JACK_HEADPHONE, |
| 82 | }, |
Vasily Khoruzhick | 5f3822c | 2011-03-11 11:05:37 +0200 | [diff] [blame] | 83 | { |
| 84 | .pin = "Ext Spk", |
| 85 | .mask = SND_JACK_HEADPHONE, |
| 86 | .invert = 1 |
| 87 | }, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 88 | }; |
| 89 | |
| 90 | /* Headset jack detection gpios */ |
| 91 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { |
| 92 | { |
| 93 | .gpio = GPIO37_ZIPITZ2_HEADSET_DETECT, |
| 94 | .name = "hsdet-gpio", |
| 95 | .report = SND_JACK_HEADSET, |
| 96 | .debounce_time = 200, |
Vasily Khoruzhick | 7cbf7004 | 2011-01-18 16:54:24 +0200 | [diff] [blame] | 97 | .invert = 1, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 98 | }, |
| 99 | }; |
| 100 | |
| 101 | /* z2 machine dapm widgets */ |
| 102 | static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { |
| 103 | SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| 104 | SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| 105 | SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| 106 | |
| 107 | /* headset is a mic and mono headphone */ |
| 108 | SND_SOC_DAPM_HP("Headset Jack", NULL), |
| 109 | }; |
| 110 | |
| 111 | /* Z2 machine audio_map */ |
Axel Lin | 3c3f51f | 2011-12-31 08:45:49 +0800 | [diff] [blame] | 112 | static const struct snd_soc_dapm_route z2_audio_map[] = { |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 113 | |
| 114 | /* headphone connected to LOUT1, ROUT1 */ |
| 115 | {"Headphone Jack", NULL, "LOUT1"}, |
| 116 | {"Headphone Jack", NULL, "ROUT1"}, |
| 117 | |
| 118 | /* ext speaker connected to LOUT2, ROUT2 */ |
Codrut Grosu | 3e22e9d | 2017-02-25 22:33:00 +0200 | [diff] [blame] | 119 | {"Ext Spk", NULL, "ROUT2"}, |
| 120 | {"Ext Spk", NULL, "LOUT2"}, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 121 | |
| 122 | /* mic is connected to R input 2 - with bias */ |
| 123 | {"RINPUT2", NULL, "Mic Bias"}, |
| 124 | {"Mic Bias", NULL, "Mic Jack"}, |
| 125 | }; |
| 126 | |
| 127 | /* |
| 128 | * Logic for a wm8750 as connected on a Z2 Device |
| 129 | */ |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 130 | static int z2_wm8750_init(struct snd_soc_pcm_runtime *rtd) |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 131 | { |
| 132 | int ret; |
| 133 | |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 134 | /* Jack detection API stuff */ |
Lars-Peter Clausen | d30d141 | 2015-03-04 10:33:32 +0100 | [diff] [blame] | 135 | ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", SND_JACK_HEADSET, |
| 136 | &hs_jack, hs_jack_pins, |
| 137 | ARRAY_SIZE(hs_jack_pins)); |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 138 | if (ret) |
| 139 | goto err; |
| 140 | |
| 141 | ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios), |
| 142 | hs_jack_gpios); |
| 143 | if (ret) |
| 144 | goto err; |
| 145 | |
| 146 | return 0; |
| 147 | |
| 148 | err: |
| 149 | return ret; |
| 150 | } |
| 151 | |
Bhumika Goyal | 943b731 | 2017-03-14 01:16:40 +0530 | [diff] [blame] | 152 | static const struct snd_soc_ops z2_ops = { |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 153 | .hw_params = z2_hw_params, |
| 154 | }; |
| 155 | |
| 156 | /* z2 digital audio interface glue - connects codec <--> CPU */ |
Kuninori Morimoto | dca012b | 2019-06-06 13:12:11 +0900 | [diff] [blame] | 157 | SND_SOC_DAILINK_DEFS(wm8750, |
| 158 | DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")), |
| 159 | DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001b", "wm8750-hifi")), |
| 160 | DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); |
| 161 | |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 162 | static struct snd_soc_dai_link z2_dai = { |
| 163 | .name = "wm8750", |
| 164 | .stream_name = "WM8750", |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 165 | .init = z2_wm8750_init, |
Axel Lin | 36c1b40 | 2011-12-30 23:44:37 +0800 | [diff] [blame] | 166 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
| 167 | SND_SOC_DAIFMT_CBS_CFS, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 168 | .ops = &z2_ops, |
Kuninori Morimoto | dca012b | 2019-06-06 13:12:11 +0900 | [diff] [blame] | 169 | SND_SOC_DAILINK_REG(wm8750), |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 170 | }; |
| 171 | |
| 172 | /* z2 audio machine driver */ |
| 173 | static struct snd_soc_card snd_soc_z2 = { |
| 174 | .name = "Z2", |
Axel Lin | 561c6a1 | 2011-12-22 09:44:43 +0800 | [diff] [blame] | 175 | .owner = THIS_MODULE, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 176 | .dai_link = &z2_dai, |
| 177 | .num_links = 1, |
Axel Lin | 3c3f51f | 2011-12-31 08:45:49 +0800 | [diff] [blame] | 178 | |
| 179 | .dapm_widgets = wm8750_dapm_widgets, |
| 180 | .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), |
| 181 | .dapm_routes = z2_audio_map, |
| 182 | .num_dapm_routes = ARRAY_SIZE(z2_audio_map), |
Lars-Peter Clausen | 92ac4c5 | 2015-05-07 21:27:49 +0200 | [diff] [blame] | 183 | .fully_routed = true, |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 184 | }; |
| 185 | |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 186 | static struct platform_device *z2_snd_device; |
| 187 | |
| 188 | static int __init z2_init(void) |
| 189 | { |
| 190 | int ret; |
| 191 | |
| 192 | if (!machine_is_zipit2()) |
| 193 | return -ENODEV; |
| 194 | |
| 195 | z2_snd_device = platform_device_alloc("soc-audio", -1); |
| 196 | if (!z2_snd_device) |
| 197 | return -ENOMEM; |
| 198 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 199 | platform_set_drvdata(z2_snd_device, &snd_soc_z2); |
Marek Vasut | d21e0f4 | 2010-04-05 06:13:38 +0200 | [diff] [blame] | 200 | ret = platform_device_add(z2_snd_device); |
| 201 | |
| 202 | if (ret) |
| 203 | platform_device_put(z2_snd_device); |
| 204 | |
| 205 | return ret; |
| 206 | } |
| 207 | |
| 208 | static void __exit z2_exit(void) |
| 209 | { |
| 210 | platform_device_unregister(z2_snd_device); |
| 211 | } |
| 212 | |
| 213 | module_init(z2_init); |
| 214 | module_exit(z2_exit); |
| 215 | |
| 216 | MODULE_AUTHOR("Ken McGuire <kenm@desertweyr.com>, " |
| 217 | "Marek Vasut <marek.vasut@gmail.com>"); |
| 218 | MODULE_DESCRIPTION("ALSA SoC ZipitZ2"); |
| 219 | MODULE_LICENSE("GPL"); |