include/sound/simple_card_utils.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * simple_card_utils.h
   4  *
   5  * Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   6  */
   7
   8 #ifndef __SIMPLE_CARD_UTILS_H
   9 #define __SIMPLE_CARD_UTILS_H
  10
  11 #include <linux/clk.h>
  12 #include <sound/soc.h>
  13
  14 #define simple_util_init_hp(card, sjack, prefix)                \
  15         simple_util_init_jack(card, sjack, 1, prefix, NULL)
  16 #define simple_util_init_mic(card, sjack, prefix)               \
  17         simple_util_init_jack(card, sjack, 0, prefix, NULL)
  18
  19 struct simple_util_tdm_width_map {
  20         u8 sample_bits;
  21         u8 slot_count;
  22         u16 slot_width;
  23 };
  24
  25 struct simple_util_dai {
  26         const char *name;
  27         unsigned int sysclk;
  28         int clk_direction;
  29         int slots;
  30         int slot_width;
  31         unsigned int tx_slot_mask;
  32         unsigned int rx_slot_mask;
  33         struct clk *clk;
  34         bool clk_fixed;
  35         struct simple_util_tdm_width_map *tdm_width_map;
  36         int n_tdm_widths;
  37 };
  38
  39 struct simple_util_data {
  40         u32 convert_rate;
  41         u32 convert_channels;
  42         const char *convert_sample_format;
  43 };
  44
  45 struct simple_util_jack {
  46         struct snd_soc_jack jack;
  47         struct snd_soc_jack_pin pin;
  48         struct snd_soc_jack_gpio gpio;
  49 };
  50
  51 struct prop_nums {
  52         int cpus;
  53         int codecs;
  54         int platforms;
  55 };
  56
  57 struct simple_util_priv {
  58         struct snd_soc_card snd_card;
  59         struct simple_dai_props {
  60                 struct simple_util_dai *cpu_dai;
  61                 struct simple_util_dai *codec_dai;
  62                 struct simple_util_data adata;
  63                 struct snd_soc_codec_conf *codec_conf;
  64                 struct prop_nums num;
  65                 unsigned int mclk_fs;
  66         } *dai_props;
  67         struct simple_util_jack hp_jack;
  68         struct simple_util_jack mic_jack;
  69         struct snd_soc_jack *aux_jacks;
  70         struct snd_soc_dai_link *dai_link;
  71         struct simple_util_dai *dais;
  72         struct snd_soc_dai_link_component *dlcs;
  73         struct snd_soc_codec_conf *codec_conf;
  74         struct gpio_desc *pa_gpio;
  75         const struct snd_soc_ops *ops;
  76         unsigned int dpcm_selectable:1;
  77         unsigned int force_dpcm:1;
  78 };
  79 #define simple_priv_to_card(priv)       (&(priv)->snd_card)
  80 #define simple_priv_to_props(priv, i)   ((priv)->dai_props + (i))
  81 #define simple_priv_to_dev(priv)        (simple_priv_to_card(priv)->dev)
  82 #define simple_priv_to_link(priv, i)    (simple_priv_to_card(priv)->dai_link + (i))
  83
  84 #define simple_props_to_dlc_cpu(props, i)       ((props)->cpus + i)
  85 #define simple_props_to_dlc_codec(props, i)     ((props)->codecs + i)
  86 #define simple_props_to_dlc_platform(props, i)  ((props)->platforms + i)
  87
  88 #define simple_props_to_dai_cpu(props, i)       ((props)->cpu_dai + i)
  89 #define simple_props_to_dai_codec(props, i)     ((props)->codec_dai + i)
  90 #define simple_props_to_codec_conf(props, i)    ((props)->codec_conf + i)
  91
  92 #define for_each_prop_dlc_cpus(props, i, cpu)                           \
  93         for ((i) = 0;                                                   \
  94              ((i) < (props)->num.cpus) &&                               \
  95                      ((cpu) = simple_props_to_dlc_cpu(props, i));       \
  96              (i)++)
  97 #define for_each_prop_dlc_codecs(props, i, codec)                       \
  98         for ((i) = 0;                                                   \
  99              ((i) < (props)->num.codecs) &&                             \
 100                      ((codec) = simple_props_to_dlc_codec(props, i));   \
 101              (i)++)
 102 #define for_each_prop_dlc_platforms(props, i, platform)                 \
 103         for ((i) = 0;                                                   \
 104              ((i) < (props)->num.platforms) &&                          \
 105                      ((platform) = simple_props_to_dlc_platform(props, i)); \
 106              (i)++)
 107 #define for_each_prop_codec_conf(props, i, conf)                        \
 108         for ((i) = 0;                                                   \
 109              ((i) < (props)->num.codecs) &&                             \
 110                      (props)->codec_conf &&                             \
 111                      ((conf) = simple_props_to_codec_conf(props, i));   \
 112              (i)++)
 113
 114 #define for_each_prop_dai_cpu(props, i, cpu)                            \
 115         for ((i) = 0;                                                   \
 116              ((i) < (props)->num.cpus) &&                               \
 117                      ((cpu) = simple_props_to_dai_cpu(props, i));       \
 118              (i)++)
 119 #define for_each_prop_dai_codec(props, i, codec)                        \
 120         for ((i) = 0;                                                   \
 121              ((i) < (props)->num.codecs) &&                             \
 122                      ((codec) = simple_props_to_dai_codec(props, i));   \
 123              (i)++)
 124
 125 #define SNDRV_MAX_LINKS 512
 126
 127 struct link_info {
 128         int link; /* number of link */
 129         int cpu;  /* turn for CPU / Codec */
 130         struct prop_nums num[SNDRV_MAX_LINKS];
 131 };
 132
 133 int simple_util_parse_daifmt(struct device *dev,
 134                              struct device_node *node,
 135                              struct device_node *codec,
 136                              char *prefix,
 137                              unsigned int *retfmt);
 138 int simple_util_parse_tdm_width_map(struct device *dev, struct device_node *np,
 139                                     struct simple_util_dai *dai);
 140
 141 __printf(3, 4)
 142 int simple_util_set_dailink_name(struct device *dev,
 143                                  struct snd_soc_dai_link *dai_link,
 144                                  const char *fmt, ...);
 145 int simple_util_parse_card_name(struct snd_soc_card *card,
 146                                 char *prefix);
 147
 148 int simple_util_parse_clk(struct device *dev,
 149                           struct device_node *node,
 150                           struct simple_util_dai *simple_dai,
 151                           struct snd_soc_dai_link_component *dlc);
 152 int simple_util_startup(struct snd_pcm_substream *substream);
 153 void simple_util_shutdown(struct snd_pcm_substream *substream);
 154 int simple_util_hw_params(struct snd_pcm_substream *substream,
 155                           struct snd_pcm_hw_params *params);
 156 int simple_util_dai_init(struct snd_soc_pcm_runtime *rtd);
 157 int simple_util_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 158                                    struct snd_pcm_hw_params *params);
 159
 160 #define simple_util_parse_tdm(np, dai)                          \
 161         snd_soc_of_parse_tdm_slot(np,   &(dai)->tx_slot_mask,   \
 162                                         &(dai)->rx_slot_mask,   \
 163                                         &(dai)->slots,          \
 164                                         &(dai)->slot_width);
 165
 166 void simple_util_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
 167                                        struct snd_soc_dai_link_component *cpus);
 168 void simple_util_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
 169                                   int is_single_links);
 170
 171 void simple_util_clean_reference(struct snd_soc_card *card);
 172
 173 void simple_util_parse_convert(struct device_node *np, char *prefix,
 174                                struct simple_util_data *data);
 175 bool simple_util_is_convert_required(const struct simple_util_data *data);
 176
 177 int simple_util_parse_routing(struct snd_soc_card *card,
 178                                       char *prefix);
 179 int simple_util_parse_widgets(struct snd_soc_card *card,
 180                                       char *prefix);
 181 int simple_util_parse_pin_switches(struct snd_soc_card *card,
 182                                    char *prefix);
 183
 184 int simple_util_init_jack(struct snd_soc_card *card,
 185                                struct simple_util_jack *sjack,
 186                                int is_hp, char *prefix, char *pin);
 187 int simple_util_init_aux_jacks(struct simple_util_priv *priv,
 188                                 char *prefix);
 189 int simple_util_init_priv(struct simple_util_priv *priv,
 190                                struct link_info *li);
 191 void simple_util_remove(struct platform_device *pdev);
 192
 193 int graph_util_card_probe(struct snd_soc_card *card);
 194 int graph_util_is_ports0(struct device_node *port);
 195 int graph_util_parse_dai(struct device *dev, struct device_node *ep,
 196                          struct snd_soc_dai_link_component *dlc, int *is_single_link);
 197
 198 int graph_util_parse_link_direction(struct device_node *np,
 199                                     bool *is_playback_only, bool *is_capture_only);
 200
 201 #ifdef DEBUG
 202 static inline void simple_util_debug_dai(struct simple_util_priv *priv,
 203                                          char *name,
 204                                          struct simple_util_dai *dai)
 205 {
 206         struct device *dev = simple_priv_to_dev(priv);
 207
 208         /* dai might be NULL */
 209         if (!dai)
 210                 return;
 211
 212         if (dai->name)
 213                 dev_dbg(dev, "%s dai name = %s\n",
 214                         name, dai->name);
 215
 216         if (dai->slots)
 217                 dev_dbg(dev, "%s slots = %d\n", name, dai->slots);
 218         if (dai->slot_width)
 219                 dev_dbg(dev, "%s slot width = %d\n", name, dai->slot_width);
 220         if (dai->tx_slot_mask)
 221                 dev_dbg(dev, "%s tx slot mask = %d\n", name, dai->tx_slot_mask);
 222         if (dai->rx_slot_mask)
 223                 dev_dbg(dev, "%s rx slot mask = %d\n", name, dai->rx_slot_mask);
 224         if (dai->clk)
 225                 dev_dbg(dev, "%s clk %luHz\n", name, clk_get_rate(dai->clk));
 226         if (dai->sysclk)
 227                 dev_dbg(dev, "%s sysclk = %dHz\n",
 228                         name, dai->sysclk);
 229         if (dai->clk || dai->sysclk)
 230                 dev_dbg(dev, "%s direction = %s\n",
 231                         name, dai->clk_direction ? "OUT" : "IN");
 232 }
 233
 234 static inline void simple_util_debug_info(struct simple_util_priv *priv)
 235 {
 236         struct snd_soc_card *card = simple_priv_to_card(priv);
 237         struct device *dev = simple_priv_to_dev(priv);
 238
 239         int i;
 240
 241         if (card->name)
 242                 dev_dbg(dev, "Card Name: %s\n", card->name);
 243
 244         for (i = 0; i < card->num_links; i++) {
 245                 struct simple_dai_props *props = simple_priv_to_props(priv, i);
 246                 struct snd_soc_dai_link *link = simple_priv_to_link(priv, i);
 247                 struct simple_util_dai *dai;
 248                 struct snd_soc_codec_conf *cnf;
 249                 int j;
 250
 251                 dev_dbg(dev, "DAI%d\n", i);
 252
 253                 dev_dbg(dev, "cpu num = %d\n", link->num_cpus);
 254                 for_each_prop_dai_cpu(props, j, dai)
 255                         simple_util_debug_dai(priv, "cpu", dai);
 256                 dev_dbg(dev, "codec num = %d\n", link->num_codecs);
 257                 for_each_prop_dai_codec(props, j, dai)
 258                         simple_util_debug_dai(priv, "codec", dai);
 259
 260                 if (link->name)
 261                         dev_dbg(dev, "dai name = %s\n", link->name);
 262                 if (link->dai_fmt)
 263                         dev_dbg(dev, "dai format = %04x\n", link->dai_fmt);
 264                 if (props->adata.convert_rate)
 265                         dev_dbg(dev, "convert_rate = %d\n", props->adata.convert_rate);
 266                 if (props->adata.convert_channels)
 267                         dev_dbg(dev, "convert_channels = %d\n", props->adata.convert_channels);
 268                 for_each_prop_codec_conf(props, j, cnf)
 269                         if (cnf->name_prefix)
 270                                 dev_dbg(dev, "name prefix = %s\n", cnf->name_prefix);
 271                 if (props->mclk_fs)
 272                         dev_dbg(dev, "mclk-fs = %d\n", props->mclk_fs);
 273         }
 274 }
 275 #else
 276 #define  simple_util_debug_info(priv)
 277 #endif /* DEBUG */
 278
 279 #endif /* __SIMPLE_CARD_UTILS_H */