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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); | |
39 | u32 dai_format, mclk; | |
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 | ||
52 | /* Sgtl5000 sysclk should be >= 8MHz and <= 27M */ | |
d66a5b9c LW |
53 | if (mclk < 8000000 || mclk > 27000000) { |
54 | dev_err(codec_dai->dev, "Invalid mclk frequency: %u.%03uMHz\n", | |
55 | mclk / 1000000, mclk / 1000 % 1000); | |
fcb5e47e | 56 | return -EINVAL; |
d66a5b9c | 57 | } |
fcb5e47e DA |
58 | |
59 | /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ | |
60 | ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); | |
d66a5b9c LW |
61 | if (ret) { |
62 | dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", | |
63 | mclk / 1000000, mclk / 1000 % 1000); | |
fcb5e47e | 64 | return ret; |
d66a5b9c | 65 | } |
fcb5e47e DA |
66 | |
67 | /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ | |
68 | ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); | |
d66a5b9c LW |
69 | if (ret) { |
70 | dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", | |
71 | mclk / 1000000, mclk / 1000 % 1000); | |
fcb5e47e | 72 | return ret; |
d66a5b9c | 73 | } |
fcb5e47e DA |
74 | |
75 | /* set codec to slave mode */ | |
76 | dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
77 | SND_SOC_DAIFMT_CBS_CFS; | |
78 | ||
79 | /* set codec DAI configuration */ | |
80 | ret = snd_soc_dai_set_fmt(codec_dai, dai_format); | |
d66a5b9c LW |
81 | if (ret) { |
82 | dev_err(codec_dai->dev, "Failed to set dai format to %08x\n", | |
83 | dai_format); | |
fcb5e47e | 84 | return ret; |
d66a5b9c | 85 | } |
fcb5e47e DA |
86 | |
87 | /* set cpu DAI configuration */ | |
88 | ret = snd_soc_dai_set_fmt(cpu_dai, dai_format); | |
d66a5b9c LW |
89 | if (ret) { |
90 | dev_err(cpu_dai->dev, "Failed to set dai format to %08x\n", | |
91 | dai_format); | |
fcb5e47e | 92 | return ret; |
d66a5b9c | 93 | } |
fcb5e47e DA |
94 | |
95 | return 0; | |
96 | } | |
97 | ||
98 | static struct snd_soc_ops mxs_sgtl5000_hifi_ops = { | |
99 | .hw_params = mxs_sgtl5000_hw_params, | |
100 | }; | |
101 | ||
102 | static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { | |
103 | { | |
78a262c8 | 104 | .name = "HiFi Tx", |
fcb5e47e DA |
105 | .stream_name = "HiFi Playback", |
106 | .codec_dai_name = "sgtl5000", | |
fcb5e47e | 107 | .ops = &mxs_sgtl5000_hifi_ops, |
a90e6053 | 108 | .playback_only = true, |
78a262c8 DA |
109 | }, { |
110 | .name = "HiFi Rx", | |
111 | .stream_name = "HiFi Capture", | |
112 | .codec_dai_name = "sgtl5000", | |
78a262c8 | 113 | .ops = &mxs_sgtl5000_hifi_ops, |
a90e6053 | 114 | .capture_only = true, |
fcb5e47e DA |
115 | }, |
116 | }; | |
117 | ||
118 | static struct snd_soc_card mxs_sgtl5000 = { | |
119 | .name = "mxs_sgtl5000", | |
a5b68348 | 120 | .owner = THIS_MODULE, |
fcb5e47e DA |
121 | .dai_link = mxs_sgtl5000_dai, |
122 | .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), | |
123 | }; | |
124 | ||
38f2b8cb | 125 | static int mxs_sgtl5000_probe(struct platform_device *pdev) |
e968194b | 126 | { |
38f2b8cb FE |
127 | struct snd_soc_card *card = &mxs_sgtl5000; |
128 | int ret, i; | |
e968194b SG |
129 | struct device_node *np = pdev->dev.of_node; |
130 | struct device_node *saif_np[2], *codec_np; | |
e968194b SG |
131 | |
132 | saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); | |
133 | saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); | |
134 | codec_np = of_parse_phandle(np, "audio-codec", 0); | |
135 | if (!saif_np[0] || !saif_np[1] || !codec_np) { | |
136 | dev_err(&pdev->dev, "phandle missing or invalid\n"); | |
137 | return -EINVAL; | |
138 | } | |
139 | ||
140 | for (i = 0; i < 2; i++) { | |
141 | mxs_sgtl5000_dai[i].codec_name = NULL; | |
142 | mxs_sgtl5000_dai[i].codec_of_node = codec_np; | |
143 | mxs_sgtl5000_dai[i].cpu_dai_name = NULL; | |
bc92657a | 144 | mxs_sgtl5000_dai[i].cpu_of_node = saif_np[i]; |
e968194b SG |
145 | mxs_sgtl5000_dai[i].platform_name = NULL; |
146 | mxs_sgtl5000_dai[i].platform_of_node = saif_np[i]; | |
147 | } | |
148 | ||
149 | of_node_put(codec_np); | |
150 | of_node_put(saif_np[0]); | |
151 | of_node_put(saif_np[1]); | |
152 | ||
fcb5e47e DA |
153 | /* |
154 | * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). | |
155 | * The Sgtl5000 sysclk is derived from saif0 mclk and it's range | |
156 | * should be >= 8MHz and <= 27M. | |
157 | */ | |
158 | ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); | |
d66a5b9c LW |
159 | if (ret) { |
160 | dev_err(&pdev->dev, "failed to get mclk\n"); | |
fcb5e47e | 161 | return ret; |
d66a5b9c | 162 | } |
fcb5e47e DA |
163 | |
164 | card->dev = &pdev->dev; | |
165 | platform_set_drvdata(pdev, card); | |
166 | ||
167 | ret = snd_soc_register_card(card); | |
168 | if (ret) { | |
169 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", | |
170 | ret); | |
171 | return ret; | |
172 | } | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
fd582736 | 177 | static int mxs_sgtl5000_remove(struct platform_device *pdev) |
fcb5e47e DA |
178 | { |
179 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
180 | ||
181 | mxs_saif_put_mclk(0); | |
182 | ||
183 | snd_soc_unregister_card(card); | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
e968194b SG |
188 | static const struct of_device_id mxs_sgtl5000_dt_ids[] = { |
189 | { .compatible = "fsl,mxs-audio-sgtl5000", }, | |
190 | { /* sentinel */ } | |
191 | }; | |
192 | MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); | |
193 | ||
fcb5e47e DA |
194 | static struct platform_driver mxs_sgtl5000_audio_driver = { |
195 | .driver = { | |
196 | .name = "mxs-sgtl5000", | |
197 | .owner = THIS_MODULE, | |
e968194b | 198 | .of_match_table = mxs_sgtl5000_dt_ids, |
fcb5e47e DA |
199 | }, |
200 | .probe = mxs_sgtl5000_probe, | |
fd582736 | 201 | .remove = mxs_sgtl5000_remove, |
fcb5e47e DA |
202 | }; |
203 | ||
85aa0960 | 204 | module_platform_driver(mxs_sgtl5000_audio_driver); |
fcb5e47e DA |
205 | |
206 | MODULE_AUTHOR("Freescale Semiconductor, Inc."); | |
207 | MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); | |
208 | MODULE_LICENSE("GPL"); | |
9fd369b1 | 209 | MODULE_ALIAS("platform:mxs-sgtl5000"); |