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1 | /* |
2 | * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. | |
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 version 2 and | |
6 | * only version 2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * lpass-ipq806x.c -- ALSA SoC CPU DAI driver for QTi LPASS | |
14 | * Splited out the IPQ8064 soc specific from lpass-cpu.c | |
15 | */ | |
16 | ||
17 | #include <linux/clk.h> | |
18 | #include <linux/device.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/of.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/soc-dai.h> | |
27 | ||
28 | #include "lpass-lpaif-reg.h" | |
29 | #include "lpass.h" | |
30 | ||
31 | enum lpaif_i2s_ports { | |
32 | IPQ806X_LPAIF_I2S_PORT_CODEC_SPK, | |
33 | IPQ806X_LPAIF_I2S_PORT_CODEC_MIC, | |
34 | IPQ806X_LPAIF_I2S_PORT_SEC_SPK, | |
35 | IPQ806X_LPAIF_I2S_PORT_SEC_MIC, | |
36 | IPQ806X_LPAIF_I2S_PORT_MI2S, | |
37 | }; | |
38 | ||
39 | enum lpaif_dma_channels { | |
40 | IPQ806X_LPAIF_RDMA_CHAN_MI2S, | |
41 | IPQ806X_LPAIF_RDMA_CHAN_PCM0, | |
42 | IPQ806X_LPAIF_RDMA_CHAN_PCM1, | |
43 | }; | |
44 | ||
45 | static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = { | |
0ae9fd3b | 46 | .id = IPQ806X_LPAIF_I2S_PORT_MI2S, |
9bae4880 SK |
47 | .playback = { |
48 | .stream_name = "lpass-cpu-playback", | |
49 | .formats = SNDRV_PCM_FMTBIT_S16 | | |
50 | SNDRV_PCM_FMTBIT_S24 | | |
51 | SNDRV_PCM_FMTBIT_S32, | |
52 | .rates = SNDRV_PCM_RATE_8000 | | |
53 | SNDRV_PCM_RATE_16000 | | |
54 | SNDRV_PCM_RATE_32000 | | |
55 | SNDRV_PCM_RATE_48000 | | |
56 | SNDRV_PCM_RATE_96000, | |
57 | .rate_min = 8000, | |
58 | .rate_max = 96000, | |
59 | .channels_min = 1, | |
60 | .channels_max = 8, | |
61 | }, | |
62 | .probe = &asoc_qcom_lpass_cpu_dai_probe, | |
63 | .ops = &asoc_qcom_lpass_cpu_dai_ops, | |
64 | }; | |
65 | ||
7cc24b16 | 66 | static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata) |
6db1c6ba SK |
67 | { |
68 | return IPQ806X_LPAIF_RDMA_CHAN_MI2S; | |
69 | } | |
70 | ||
7cc24b16 | 71 | static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan) |
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72 | { |
73 | return 0; | |
74 | } | |
75 | ||
eccad574 | 76 | static struct lpass_variant ipq806x_data = { |
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77 | .i2sctrl_reg_base = 0x0010, |
78 | .i2sctrl_reg_stride = 0x04, | |
79 | .i2s_ports = 5, | |
80 | .irq_reg_base = 0x3000, | |
81 | .irq_reg_stride = 0x1000, | |
82 | .irq_ports = 3, | |
83 | .rdma_reg_base = 0x6000, | |
84 | .rdma_reg_stride = 0x1000, | |
85 | .rdma_channels = 4, | |
86 | .dai_driver = &ipq806x_lpass_cpu_dai_driver, | |
87 | .num_dai = 1, | |
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88 | .alloc_dma_channel = ipq806x_lpass_alloc_dma_channel, |
89 | .free_dma_channel = ipq806x_lpass_free_dma_channel, | |
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90 | }; |
91 | ||
92 | static const struct of_device_id ipq806x_lpass_cpu_device_id[] = { | |
93 | { .compatible = "qcom,lpass-cpu", .data = &ipq806x_data }, | |
94 | {} | |
95 | }; | |
96 | MODULE_DEVICE_TABLE(of, ipq806x_lpass_cpu_device_id); | |
97 | ||
98 | static struct platform_driver ipq806x_lpass_cpu_platform_driver = { | |
99 | .driver = { | |
100 | .name = "lpass-cpu", | |
101 | .of_match_table = of_match_ptr(ipq806x_lpass_cpu_device_id), | |
102 | }, | |
103 | .probe = asoc_qcom_lpass_cpu_platform_probe, | |
104 | .remove = asoc_qcom_lpass_cpu_platform_remove, | |
105 | }; | |
106 | module_platform_driver(ipq806x_lpass_cpu_platform_driver); | |
107 | ||
108 | MODULE_DESCRIPTION("QTi LPASS CPU Driver"); | |
109 | MODULE_LICENSE("GPL v2"); |