~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/soc/qcom/apq8096.c

Version: ~ [ linux-5.10-rc5 ] ~ [ linux-5.9.10 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.79 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.159 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.208 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.245 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.245 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0
  2 // Copyright (c) 2018, Linaro Limited
  3 
  4 #include <linux/module.h>
  5 #include <linux/platform_device.h>
  6 #include <linux/of_device.h>
  7 #include <sound/soc.h>
  8 #include <sound/soc-dapm.h>
  9 #include <sound/pcm.h>
 10 #include "common.h"
 11 
 12 #define SLIM_MAX_TX_PORTS 16
 13 #define SLIM_MAX_RX_PORTS 16
 14 #define WCD9335_DEFAULT_MCLK_RATE       9600000
 15 
 16 static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 17                                       struct snd_pcm_hw_params *params)
 18 {
 19         struct snd_interval *rate = hw_param_interval(params,
 20                                         SNDRV_PCM_HW_PARAM_RATE);
 21         struct snd_interval *channels = hw_param_interval(params,
 22                                         SNDRV_PCM_HW_PARAM_CHANNELS);
 23 
 24         rate->min = rate->max = 48000;
 25         channels->min = channels->max = 2;
 26 
 27         return 0;
 28 }
 29 
 30 static int msm_snd_hw_params(struct snd_pcm_substream *substream,
 31                              struct snd_pcm_hw_params *params)
 32 {
 33         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 34         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 35         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 36         u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
 37         u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
 38         int ret = 0;
 39 
 40         ret = snd_soc_dai_get_channel_map(codec_dai,
 41                                 &tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
 42         if (ret != 0 && ret != -ENOTSUPP) {
 43                 pr_err("failed to get codec chan map, err:%d\n", ret);
 44                 goto end;
 45         } else if (ret == -ENOTSUPP) {
 46                 return 0;
 47         }
 48 
 49         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 50                 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
 51                                                   rx_ch_cnt, rx_ch);
 52         else
 53                 ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt, tx_ch,
 54                                                   0, NULL);
 55         if (ret != 0 && ret != -ENOTSUPP)
 56                 pr_err("Failed to set cpu chan map, err:%d\n", ret);
 57         else if (ret == -ENOTSUPP)
 58                 ret = 0;
 59 end:
 60         return ret;
 61 }
 62 
 63 static struct snd_soc_ops apq8096_ops = {
 64         .hw_params = msm_snd_hw_params,
 65 };
 66 
 67 static int apq8096_init(struct snd_soc_pcm_runtime *rtd)
 68 {
 69         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 70 
 71         /*
 72          * Codec SLIMBUS configuration
 73          * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
 74          * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
 75          * TX14, TX15, TX16
 76          */
 77         unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
 78                                         150, 151, 152, 153, 154, 155, 156};
 79         unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
 80                                             134, 135, 136, 137, 138, 139,
 81                                             140, 141, 142, 143};
 82 
 83         snd_soc_dai_set_channel_map(codec_dai, ARRAY_SIZE(tx_ch),
 84                                         tx_ch, ARRAY_SIZE(rx_ch), rx_ch);
 85 
 86         snd_soc_dai_set_sysclk(codec_dai, 0, WCD9335_DEFAULT_MCLK_RATE,
 87                                 SNDRV_PCM_STREAM_PLAYBACK);
 88 
 89         return 0;
 90 }
 91 
 92 static void apq8096_add_be_ops(struct snd_soc_card *card)
 93 {
 94         struct snd_soc_dai_link *link;
 95         int i;
 96 
 97         for_each_card_prelinks(card, i, link) {
 98                 if (link->no_pcm == 1) {
 99                         link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
100                         link->init = apq8096_init;
101                         link->ops = &apq8096_ops;
102                 }
103         }
104 }
105 
106 static int apq8096_platform_probe(struct platform_device *pdev)
107 {
108         struct snd_soc_card *card;
109         struct device *dev = &pdev->dev;
110         int ret;
111 
112         card = kzalloc(sizeof(*card), GFP_KERNEL);
113         if (!card)
114                 return -ENOMEM;
115 
116         card->dev = dev;
117         dev_set_drvdata(dev, card);
118         ret = qcom_snd_parse_of(card);
119         if (ret) {
120                 dev_err(dev, "Error parsing OF data\n");
121                 goto err;
122         }
123 
124         apq8096_add_be_ops(card);
125         ret = snd_soc_register_card(card);
126         if (ret)
127                 goto err_card_register;
128 
129         return 0;
130 
131 err_card_register:
132         kfree(card->dai_link);
133 err:
134         kfree(card);
135         return ret;
136 }
137 
138 static int apq8096_platform_remove(struct platform_device *pdev)
139 {
140         struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
141 
142         snd_soc_unregister_card(card);
143         kfree(card->dai_link);
144         kfree(card);
145 
146         return 0;
147 }
148 
149 static const struct of_device_id msm_snd_apq8096_dt_match[] = {
150         {.compatible = "qcom,apq8096-sndcard"},
151         {}
152 };
153 
154 MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
155 
156 static struct platform_driver msm_snd_apq8096_driver = {
157         .probe  = apq8096_platform_probe,
158         .remove = apq8096_platform_remove,
159         .driver = {
160                 .name = "msm-snd-apq8096",
161                 .of_match_table = msm_snd_apq8096_dt_match,
162         },
163 };
164 module_platform_driver(msm_snd_apq8096_driver);
165 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
166 MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver");
167 MODULE_LICENSE("GPL v2");
168 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp