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fcb5e47e DA |
1 | /* |
2 | * Copyright 2011 Freescale Semiconductor, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/device.h> | |
e968194b SG |
21 | #include <linux/of.h> |
22 | #include <linux/of_device.h> | |
fcb5e47e DA |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/jack.h> | |
27 | #include <sound/soc-dapm.h> | |
fcb5e47e DA |
28 | |
29 | #include "../codecs/sgtl5000.h" | |
30 | #include "mxs-saif.h" | |
31 | ||
32 | static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream, | |
33 | struct snd_pcm_hw_params *params) | |
34 | { | |
35 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
36 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
37 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
38 | unsigned int rate = params_rate(params); | |
bc6a5d64 | 39 | u32 mclk; |
fcb5e47e DA |
40 | int ret; |
41 | ||
42 | /* sgtl5000 does not support 512*rate when in 96000 fs */ | |
43 | switch (rate) { | |
44 | case 96000: | |
45 | mclk = 256 * rate; | |
46 | break; | |
47 | default: | |
48 | mclk = 512 * rate; | |
49 | break; | |
50 | } | |
51 | ||
fcb5e47e DA |
52 | /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ |
53 | ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); | |
d66a5b9c LW |
54 | if (ret) { |
55 | dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", | |
56 | mclk / 1000000, mclk / 1000 % 1000); | |
fcb5e47e | 57 | return ret; |
d66a5b9c | 58 | } |
fcb5e47e DA |
59 | |
60 | /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ | |
61 | ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); | |
d66a5b9c LW |
62 | if (ret) { |
63 | dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", | |
64 | mclk / 1000000, mclk / 1000 % 1000); | |
fcb5e47e | 65 | return ret; |
d66a5b9c | 66 | } |
fcb5e47e | 67 | |
fcb5e47e DA |
68 | return 0; |
69 | } | |
70 | ||
71 | static struct snd_soc_ops mxs_sgtl5000_hifi_ops = { | |
72 | .hw_params = mxs_sgtl5000_hw_params, | |
73 | }; | |
74 | ||
bc6a5d64 LPC |
75 | #define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
76 | SND_SOC_DAIFMT_CBS_CFS) | |
77 | ||
fcb5e47e DA |
78 | static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { |
79 | { | |
78a262c8 | 80 | .name = "HiFi Tx", |
fcb5e47e DA |
81 | .stream_name = "HiFi Playback", |
82 | .codec_dai_name = "sgtl5000", | |
bc6a5d64 | 83 | .dai_fmt = MXS_SGTL5000_DAI_FMT, |
fcb5e47e | 84 | .ops = &mxs_sgtl5000_hifi_ops, |
a90e6053 | 85 | .playback_only = true, |
78a262c8 DA |
86 | }, { |
87 | .name = "HiFi Rx", | |
88 | .stream_name = "HiFi Capture", | |
89 | .codec_dai_name = "sgtl5000", | |
bc6a5d64 | 90 | .dai_fmt = MXS_SGTL5000_DAI_FMT, |
78a262c8 | 91 | .ops = &mxs_sgtl5000_hifi_ops, |
a90e6053 | 92 | .capture_only = true, |
fcb5e47e DA |
93 | }, |
94 | }; | |
95 | ||
96 | static struct snd_soc_card mxs_sgtl5000 = { | |
97 | .name = "mxs_sgtl5000", | |
a5b68348 | 98 | .owner = THIS_MODULE, |
fcb5e47e DA |
99 | .dai_link = mxs_sgtl5000_dai, |
100 | .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), | |
101 | }; | |
102 | ||
38f2b8cb | 103 | static int mxs_sgtl5000_probe(struct platform_device *pdev) |
e968194b | 104 | { |
38f2b8cb FE |
105 | struct snd_soc_card *card = &mxs_sgtl5000; |
106 | int ret, i; | |
e968194b SG |
107 | struct device_node *np = pdev->dev.of_node; |
108 | struct device_node *saif_np[2], *codec_np; | |
e968194b SG |
109 | |
110 | saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); | |
111 | saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); | |
112 | codec_np = of_parse_phandle(np, "audio-codec", 0); | |
113 | if (!saif_np[0] || !saif_np[1] || !codec_np) { | |
114 | dev_err(&pdev->dev, "phandle missing or invalid\n"); | |
115 | return -EINVAL; | |
116 | } | |
117 | ||
118 | for (i = 0; i < 2; i++) { | |
119 | mxs_sgtl5000_dai[i].codec_name = NULL; | |
120 | mxs_sgtl5000_dai[i].codec_of_node = codec_np; | |
121 | mxs_sgtl5000_dai[i].cpu_dai_name = NULL; | |
bc92657a | 122 | mxs_sgtl5000_dai[i].cpu_of_node = saif_np[i]; |
e968194b SG |
123 | mxs_sgtl5000_dai[i].platform_name = NULL; |
124 | mxs_sgtl5000_dai[i].platform_of_node = saif_np[i]; | |
125 | } | |
126 | ||
127 | of_node_put(codec_np); | |
128 | of_node_put(saif_np[0]); | |
129 | of_node_put(saif_np[1]); | |
130 | ||
fcb5e47e DA |
131 | /* |
132 | * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). | |
133 | * The Sgtl5000 sysclk is derived from saif0 mclk and it's range | |
134 | * should be >= 8MHz and <= 27M. | |
135 | */ | |
136 | ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); | |
d66a5b9c LW |
137 | if (ret) { |
138 | dev_err(&pdev->dev, "failed to get mclk\n"); | |
fcb5e47e | 139 | return ret; |
d66a5b9c | 140 | } |
fcb5e47e DA |
141 | |
142 | card->dev = &pdev->dev; | |
143 | platform_set_drvdata(pdev, card); | |
144 | ||
145 | ret = snd_soc_register_card(card); | |
146 | if (ret) { | |
147 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", | |
148 | ret); | |
149 | return ret; | |
150 | } | |
151 | ||
152 | return 0; | |
153 | } | |
154 | ||
fd582736 | 155 | static int mxs_sgtl5000_remove(struct platform_device *pdev) |
fcb5e47e DA |
156 | { |
157 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
158 | ||
159 | mxs_saif_put_mclk(0); | |
160 | ||
161 | snd_soc_unregister_card(card); | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
e968194b SG |
166 | static const struct of_device_id mxs_sgtl5000_dt_ids[] = { |
167 | { .compatible = "fsl,mxs-audio-sgtl5000", }, | |
168 | { /* sentinel */ } | |
169 | }; | |
170 | MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); | |
171 | ||
fcb5e47e DA |
172 | static struct platform_driver mxs_sgtl5000_audio_driver = { |
173 | .driver = { | |
174 | .name = "mxs-sgtl5000", | |
e968194b | 175 | .of_match_table = mxs_sgtl5000_dt_ids, |
fcb5e47e DA |
176 | }, |
177 | .probe = mxs_sgtl5000_probe, | |
fd582736 | 178 | .remove = mxs_sgtl5000_remove, |
fcb5e47e DA |
179 | }; |
180 | ||
85aa0960 | 181 | module_platform_driver(mxs_sgtl5000_audio_driver); |
fcb5e47e DA |
182 | |
183 | MODULE_AUTHOR("Freescale Semiconductor, Inc."); | |
184 | MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); | |
185 | MODULE_LICENSE("GPL"); | |
9fd369b1 | 186 | MODULE_ALIAS("platform:mxs-sgtl5000"); |