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6#include <linux/bitfield.h>
7#include <linux/clk.h>
8#include <linux/module.h>
9#include <sound/pcm_params.h>
10#include <linux/regmap.h>
11#include <linux/regulator/consumer.h>
12#include <linux/reset.h>
13#include <sound/soc.h>
14#include <sound/soc-dai.h>
15
16#include <dt-bindings/sound/meson-g12a-toacodec.h>
17#include "axg-tdm.h"
18#include "meson-codec-glue.h"
19
20#define G12A_TOACODEC_DRV_NAME "g12a-toacodec"
21
22#define TOACODEC_CTRL0 0x0
23#define CTRL0_ENABLE_SHIFT 31
24#define CTRL0_DAT_SEL_SM1_MSB 19
25#define CTRL0_DAT_SEL_SM1_LSB 18
26#define CTRL0_DAT_SEL_MSB 15
27#define CTRL0_DAT_SEL_LSB 14
28#define CTRL0_LANE_SEL_SM1 16
29#define CTRL0_LANE_SEL 12
30#define CTRL0_LRCLK_SEL_SM1_MSB 14
31#define CTRL0_LRCLK_SEL_SM1_LSB 12
32#define CTRL0_LRCLK_SEL_MSB 9
33#define CTRL0_LRCLK_SEL_LSB 8
34#define CTRL0_LRCLK_INV_SM1 BIT(10)
35#define CTRL0_BLK_CAP_INV_SM1 BIT(9)
36#define CTRL0_BLK_CAP_INV BIT(7)
37#define CTRL0_BCLK_O_INV_SM1 BIT(8)
38#define CTRL0_BCLK_O_INV BIT(6)
39#define CTRL0_BCLK_SEL_SM1_MSB 6
40#define CTRL0_BCLK_SEL_MSB 5
41#define CTRL0_BCLK_SEL_LSB 4
42#define CTRL0_MCLK_SEL GENMASK(2, 0)
43
44#define TOACODEC_OUT_CHMAX 2
45
46struct g12a_toacodec {
47 struct regmap_field *field_dat_sel;
48 struct regmap_field *field_lrclk_sel;
49 struct regmap_field *field_bclk_sel;
50};
51
52struct g12a_toacodec_match_data {
53 const struct snd_soc_component_driver *component_drv;
54 struct reg_field field_dat_sel;
55 struct reg_field field_lrclk_sel;
56 struct reg_field field_bclk_sel;
57};
58
59static const char * const g12a_toacodec_mux_texts[] = {
60 "I2S A", "I2S B", "I2S C",
61};
62
63static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol,
64 struct snd_ctl_elem_value *ucontrol)
65{
66 struct snd_soc_component *component =
67 snd_soc_dapm_kcontrol_component(kcontrol);
68 struct g12a_toacodec *priv = snd_soc_component_get_drvdata(component);
69 struct snd_soc_dapm_context *dapm =
70 snd_soc_dapm_kcontrol_dapm(kcontrol);
71 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
72 unsigned int mux, reg;
73
74 mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
75 regmap_field_read(priv->field_dat_sel, ®);
76
77 if (mux == reg)
78 return 0;
79
80
81 snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
82
83 regmap_field_write(priv->field_dat_sel, mux);
84 regmap_field_write(priv->field_lrclk_sel, mux);
85 regmap_field_write(priv->field_bclk_sel, mux);
86
87
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91
92
93
94
95
96
97
98 snd_soc_component_update_bits(component, e->reg,
99 CTRL0_MCLK_SEL,
100 FIELD_PREP(CTRL0_MCLK_SEL, mux));
101
102 snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
103
104 return 0;
105}
106
107static SOC_ENUM_SINGLE_DECL(g12a_toacodec_mux_enum, TOACODEC_CTRL0,
108 CTRL0_DAT_SEL_LSB,
109 g12a_toacodec_mux_texts);
110
111static SOC_ENUM_SINGLE_DECL(sm1_toacodec_mux_enum, TOACODEC_CTRL0,
112 CTRL0_DAT_SEL_SM1_LSB,
113 g12a_toacodec_mux_texts);
114
115static const struct snd_kcontrol_new g12a_toacodec_mux =
116 SOC_DAPM_ENUM_EXT("Source", g12a_toacodec_mux_enum,
117 snd_soc_dapm_get_enum_double,
118 g12a_toacodec_mux_put_enum);
119
120static const struct snd_kcontrol_new sm1_toacodec_mux =
121 SOC_DAPM_ENUM_EXT("Source", sm1_toacodec_mux_enum,
122 snd_soc_dapm_get_enum_double,
123 g12a_toacodec_mux_put_enum);
124
125static const struct snd_kcontrol_new g12a_toacodec_out_enable =
126 SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOACODEC_CTRL0,
127 CTRL0_ENABLE_SHIFT, 1, 0);
128
129static const struct snd_soc_dapm_widget g12a_toacodec_widgets[] = {
130 SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
131 &g12a_toacodec_mux),
132 SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
133 &g12a_toacodec_out_enable),
134};
135
136static const struct snd_soc_dapm_widget sm1_toacodec_widgets[] = {
137 SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
138 &sm1_toacodec_mux),
139 SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
140 &g12a_toacodec_out_enable),
141};
142
143static int g12a_toacodec_input_hw_params(struct snd_pcm_substream *substream,
144 struct snd_pcm_hw_params *params,
145 struct snd_soc_dai *dai)
146{
147 struct meson_codec_glue_input *data;
148 int ret;
149
150 ret = meson_codec_glue_input_hw_params(substream, params, dai);
151 if (ret)
152 return ret;
153
154
155 data = meson_codec_glue_input_get_data(dai);
156 data->params.channels_min = min_t(unsigned int, TOACODEC_OUT_CHMAX,
157 data->params.channels_min);
158 data->params.channels_max = min_t(unsigned int, TOACODEC_OUT_CHMAX,
159 data->params.channels_max);
160
161 return 0;
162}
163
164static const struct snd_soc_dai_ops g12a_toacodec_input_ops = {
165 .hw_params = g12a_toacodec_input_hw_params,
166 .set_fmt = meson_codec_glue_input_set_fmt,
167};
168
169static const struct snd_soc_dai_ops g12a_toacodec_output_ops = {
170 .startup = meson_codec_glue_output_startup,
171};
172
173#define TOACODEC_STREAM(xname, xsuffix, xchmax) \
174{ \
175 .stream_name = xname " " xsuffix, \
176 .channels_min = 1, \
177 .channels_max = (xchmax), \
178 .rate_min = 5512, \
179 .rate_max = 192000, \
180 .formats = AXG_TDM_FORMATS, \
181}
182
183#define TOACODEC_INPUT(xname, xid) { \
184 .name = xname, \
185 .id = (xid), \
186 .playback = TOACODEC_STREAM(xname, "Playback", 8), \
187 .ops = &g12a_toacodec_input_ops, \
188 .probe = meson_codec_glue_input_dai_probe, \
189 .remove = meson_codec_glue_input_dai_remove, \
190}
191
192#define TOACODEC_OUTPUT(xname, xid) { \
193 .name = xname, \
194 .id = (xid), \
195 .capture = TOACODEC_STREAM(xname, "Capture", TOACODEC_OUT_CHMAX), \
196 .ops = &g12a_toacodec_output_ops, \
197}
198
199static struct snd_soc_dai_driver g12a_toacodec_dai_drv[] = {
200 TOACODEC_INPUT("IN A", TOACODEC_IN_A),
201 TOACODEC_INPUT("IN B", TOACODEC_IN_B),
202 TOACODEC_INPUT("IN C", TOACODEC_IN_C),
203 TOACODEC_OUTPUT("OUT", TOACODEC_OUT),
204};
205
206static int g12a_toacodec_component_probe(struct snd_soc_component *c)
207{
208
209 return snd_soc_component_write(c, TOACODEC_CTRL0,
210 CTRL0_BLK_CAP_INV);
211}
212
213static int sm1_toacodec_component_probe(struct snd_soc_component *c)
214{
215
216 return snd_soc_component_write(c, TOACODEC_CTRL0,
217 CTRL0_BLK_CAP_INV_SM1);
218}
219
220static const struct snd_soc_dapm_route g12a_toacodec_routes[] = {
221 { "SRC", "I2S A", "IN A Playback" },
222 { "SRC", "I2S B", "IN B Playback" },
223 { "SRC", "I2S C", "IN C Playback" },
224 { "OUT EN", "Switch", "SRC" },
225 { "OUT Capture", NULL, "OUT EN" },
226};
227
228static const struct snd_kcontrol_new g12a_toacodec_controls[] = {
229 SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL, 3, 0),
230};
231
232static const struct snd_kcontrol_new sm1_toacodec_controls[] = {
233 SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 3, 0),
234};
235
236static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
237 .probe = g12a_toacodec_component_probe,
238 .controls = g12a_toacodec_controls,
239 .num_controls = ARRAY_SIZE(g12a_toacodec_controls),
240 .dapm_widgets = g12a_toacodec_widgets,
241 .num_dapm_widgets = ARRAY_SIZE(g12a_toacodec_widgets),
242 .dapm_routes = g12a_toacodec_routes,
243 .num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
244 .endianness = 1,
245 .non_legacy_dai_naming = 1,
246};
247
248static const struct snd_soc_component_driver sm1_toacodec_component_drv = {
249 .probe = sm1_toacodec_component_probe,
250 .controls = sm1_toacodec_controls,
251 .num_controls = ARRAY_SIZE(sm1_toacodec_controls),
252 .dapm_widgets = sm1_toacodec_widgets,
253 .num_dapm_widgets = ARRAY_SIZE(sm1_toacodec_widgets),
254 .dapm_routes = g12a_toacodec_routes,
255 .num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
256 .endianness = 1,
257 .non_legacy_dai_naming = 1,
258};
259
260static const struct regmap_config g12a_toacodec_regmap_cfg = {
261 .reg_bits = 32,
262 .val_bits = 32,
263 .reg_stride = 4,
264};
265
266static const struct g12a_toacodec_match_data g12a_toacodec_match_data = {
267 .component_drv = &g12a_toacodec_component_drv,
268 .field_dat_sel = REG_FIELD(TOACODEC_CTRL0, 14, 15),
269 .field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 8, 9),
270 .field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 5),
271};
272
273static const struct g12a_toacodec_match_data sm1_toacodec_match_data = {
274 .component_drv = &sm1_toacodec_component_drv,
275 .field_dat_sel = REG_FIELD(TOACODEC_CTRL0, 18, 19),
276 .field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 12, 14),
277 .field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 6),
278};
279
280static const struct of_device_id g12a_toacodec_of_match[] = {
281 {
282 .compatible = "amlogic,g12a-toacodec",
283 .data = &g12a_toacodec_match_data,
284 },
285 {
286 .compatible = "amlogic,sm1-toacodec",
287 .data = &sm1_toacodec_match_data,
288 },
289 {}
290};
291MODULE_DEVICE_TABLE(of, g12a_toacodec_of_match);
292
293static int g12a_toacodec_probe(struct platform_device *pdev)
294{
295 const struct g12a_toacodec_match_data *data;
296 struct device *dev = &pdev->dev;
297 struct g12a_toacodec *priv;
298 void __iomem *regs;
299 struct regmap *map;
300 int ret;
301
302 data = device_get_match_data(dev);
303 if (!data) {
304 dev_err(dev, "failed to match device\n");
305 return -ENODEV;
306 }
307
308 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
309 if (!priv)
310 return -ENOMEM;
311
312 platform_set_drvdata(pdev, priv);
313
314 ret = device_reset(dev);
315 if (ret)
316 return ret;
317
318 regs = devm_platform_ioremap_resource(pdev, 0);
319 if (IS_ERR(regs))
320 return PTR_ERR(regs);
321
322 map = devm_regmap_init_mmio(dev, regs, &g12a_toacodec_regmap_cfg);
323 if (IS_ERR(map)) {
324 dev_err(dev, "failed to init regmap: %ld\n",
325 PTR_ERR(map));
326 return PTR_ERR(map);
327 }
328
329 priv->field_dat_sel = devm_regmap_field_alloc(dev, map, data->field_dat_sel);
330 if (IS_ERR(priv->field_dat_sel))
331 return PTR_ERR(priv->field_dat_sel);
332
333 priv->field_lrclk_sel = devm_regmap_field_alloc(dev, map, data->field_lrclk_sel);
334 if (IS_ERR(priv->field_lrclk_sel))
335 return PTR_ERR(priv->field_lrclk_sel);
336
337 priv->field_bclk_sel = devm_regmap_field_alloc(dev, map, data->field_bclk_sel);
338 if (IS_ERR(priv->field_bclk_sel))
339 return PTR_ERR(priv->field_bclk_sel);
340
341 return devm_snd_soc_register_component(dev,
342 data->component_drv, g12a_toacodec_dai_drv,
343 ARRAY_SIZE(g12a_toacodec_dai_drv));
344}
345
346static struct platform_driver g12a_toacodec_pdrv = {
347 .driver = {
348 .name = G12A_TOACODEC_DRV_NAME,
349 .of_match_table = g12a_toacodec_of_match,
350 },
351 .probe = g12a_toacodec_probe,
352};
353module_platform_driver(g12a_toacodec_pdrv);
354
355MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
356MODULE_DESCRIPTION("Amlogic G12a To Internal DAC Codec Driver");
357MODULE_LICENSE("GPL v2");
358
