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24#include <linux/clk.h>
25#include <linux/i2c.h>
26#include <linux/platform_device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/soc.h>
30
31#include <asm/mach-types.h>
32#include <linux/gpio.h>
33#include <linux/module.h>
34#include <linux/platform_data/asoc-ti-mcbsp.h>
35
36#include "omap-mcbsp.h"
37
38#define N810_HEADSET_AMP_GPIO 10
39#define N810_SPEAKER_AMP_GPIO 101
40
41enum {
42 N810_JACK_DISABLED,
43 N810_JACK_HP,
44 N810_JACK_HS,
45 N810_JACK_MIC,
46};
47
48static struct clk *sys_clkout2;
49static struct clk *sys_clkout2_src;
50static struct clk *func96m_clk;
51
52static int n810_spk_func;
53static int n810_jack_func;
54static int n810_dmic_func;
55
56static void n810_ext_control(struct snd_soc_dapm_context *dapm)
57{
58 int hp = 0, line1l = 0;
59
60 switch (n810_jack_func) {
61 case N810_JACK_HS:
62 line1l = 1;
63 case N810_JACK_HP:
64 hp = 1;
65 break;
66 case N810_JACK_MIC:
67 line1l = 1;
68 break;
69 }
70
71 snd_soc_dapm_mutex_lock(dapm);
72
73 if (n810_spk_func)
74 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
75 else
76 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
77
78 if (hp)
79 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
80 else
81 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
82 if (line1l)
83 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
84 else
85 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
86
87 if (n810_dmic_func)
88 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
89 else
90 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
91
92 snd_soc_dapm_sync_unlocked(dapm);
93
94 snd_soc_dapm_mutex_unlock(dapm);
95}
96
97static int n810_startup(struct snd_pcm_substream *substream)
98{
99 struct snd_pcm_runtime *runtime = substream->runtime;
100 struct snd_soc_pcm_runtime *rtd = substream->private_data;
101
102 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
103
104 n810_ext_control(&rtd->card->dapm);
105 return clk_prepare_enable(sys_clkout2);
106}
107
108static void n810_shutdown(struct snd_pcm_substream *substream)
109{
110 clk_disable_unprepare(sys_clkout2);
111}
112
113static int n810_hw_params(struct snd_pcm_substream *substream,
114 struct snd_pcm_hw_params *params)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
117 struct snd_soc_dai *codec_dai = rtd->codec_dai;
118 int err;
119
120
121 err = snd_soc_dai_set_sysclk(codec_dai, 0, 12000000,
122 SND_SOC_CLOCK_IN);
123
124 return err;
125}
126
127static const struct snd_soc_ops n810_ops = {
128 .startup = n810_startup,
129 .hw_params = n810_hw_params,
130 .shutdown = n810_shutdown,
131};
132
133static int n810_get_spk(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
135{
136 ucontrol->value.enumerated.item[0] = n810_spk_func;
137
138 return 0;
139}
140
141static int n810_set_spk(struct snd_kcontrol *kcontrol,
142 struct snd_ctl_elem_value *ucontrol)
143{
144 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
145
146 if (n810_spk_func == ucontrol->value.enumerated.item[0])
147 return 0;
148
149 n810_spk_func = ucontrol->value.enumerated.item[0];
150 n810_ext_control(&card->dapm);
151
152 return 1;
153}
154
155static int n810_get_jack(struct snd_kcontrol *kcontrol,
156 struct snd_ctl_elem_value *ucontrol)
157{
158 ucontrol->value.enumerated.item[0] = n810_jack_func;
159
160 return 0;
161}
162
163static int n810_set_jack(struct snd_kcontrol *kcontrol,
164 struct snd_ctl_elem_value *ucontrol)
165{
166 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
167
168 if (n810_jack_func == ucontrol->value.enumerated.item[0])
169 return 0;
170
171 n810_jack_func = ucontrol->value.enumerated.item[0];
172 n810_ext_control(&card->dapm);
173
174 return 1;
175}
176
177static int n810_get_input(struct snd_kcontrol *kcontrol,
178 struct snd_ctl_elem_value *ucontrol)
179{
180 ucontrol->value.enumerated.item[0] = n810_dmic_func;
181
182 return 0;
183}
184
185static int n810_set_input(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187{
188 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
189
190 if (n810_dmic_func == ucontrol->value.enumerated.item[0])
191 return 0;
192
193 n810_dmic_func = ucontrol->value.enumerated.item[0];
194 n810_ext_control(&card->dapm);
195
196 return 1;
197}
198
199static int n810_spk_event(struct snd_soc_dapm_widget *w,
200 struct snd_kcontrol *k, int event)
201{
202 if (SND_SOC_DAPM_EVENT_ON(event))
203 gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
204 else
205 gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);
206
207 return 0;
208}
209
210static int n810_jack_event(struct snd_soc_dapm_widget *w,
211 struct snd_kcontrol *k, int event)
212{
213 if (SND_SOC_DAPM_EVENT_ON(event))
214 gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
215 else
216 gpio_set_value(N810_HEADSET_AMP_GPIO, 0);
217
218 return 0;
219}
220
221static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
222 SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
223 SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
224 SND_SOC_DAPM_MIC("DMic", NULL),
225 SND_SOC_DAPM_MIC("HS Mic", NULL),
226};
227
228static const struct snd_soc_dapm_route audio_map[] = {
229 {"Headphone Jack", NULL, "HPLOUT"},
230 {"Headphone Jack", NULL, "HPROUT"},
231
232 {"Ext Spk", NULL, "LLOUT"},
233 {"Ext Spk", NULL, "RLOUT"},
234
235 {"DMic Rate 64", NULL, "DMic"},
236 {"DMic", NULL, "Mic Bias"},
237
238
239
240
241
242 {"LINE1L", NULL, "HS Mic"},
243};
244
245static const char *spk_function[] = {"Off", "On"};
246static const char *jack_function[] = {"Off", "Headphone", "Headset", "Mic"};
247static const char *input_function[] = {"ADC", "Digital Mic"};
248static const struct soc_enum n810_enum[] = {
249 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
250 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
251 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
252};
253
254static const struct snd_kcontrol_new aic33_n810_controls[] = {
255 SOC_ENUM_EXT("Speaker Function", n810_enum[0],
256 n810_get_spk, n810_set_spk),
257 SOC_ENUM_EXT("Jack Function", n810_enum[1],
258 n810_get_jack, n810_set_jack),
259 SOC_ENUM_EXT("Input Select", n810_enum[2],
260 n810_get_input, n810_set_input),
261};
262
263
264static struct snd_soc_dai_link n810_dai = {
265 .name = "TLV320AIC33",
266 .stream_name = "AIC33",
267 .cpu_dai_name = "48076000.mcbsp",
268 .platform_name = "48076000.mcbsp",
269 .codec_name = "tlv320aic3x-codec.1-0018",
270 .codec_dai_name = "tlv320aic3x-hifi",
271 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
272 SND_SOC_DAIFMT_CBM_CFM,
273 .ops = &n810_ops,
274};
275
276
277static struct snd_soc_card snd_soc_n810 = {
278 .name = "N810",
279 .owner = THIS_MODULE,
280 .dai_link = &n810_dai,
281 .num_links = 1,
282
283 .controls = aic33_n810_controls,
284 .num_controls = ARRAY_SIZE(aic33_n810_controls),
285 .dapm_widgets = aic33_dapm_widgets,
286 .num_dapm_widgets = ARRAY_SIZE(aic33_dapm_widgets),
287 .dapm_routes = audio_map,
288 .num_dapm_routes = ARRAY_SIZE(audio_map),
289 .fully_routed = true,
290};
291
292static struct platform_device *n810_snd_device;
293
294static int __init n810_soc_init(void)
295{
296 int err;
297 struct device *dev;
298
299 if (!of_have_populated_dt() ||
300 (!of_machine_is_compatible("nokia,n810") &&
301 !of_machine_is_compatible("nokia,n810-wimax")))
302 return -ENODEV;
303
304 n810_snd_device = platform_device_alloc("soc-audio", -1);
305 if (!n810_snd_device)
306 return -ENOMEM;
307
308 platform_set_drvdata(n810_snd_device, &snd_soc_n810);
309 err = platform_device_add(n810_snd_device);
310 if (err)
311 goto err1;
312
313 dev = &n810_snd_device->dev;
314
315 sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
316 if (IS_ERR(sys_clkout2_src)) {
317 dev_err(dev, "Could not get sys_clkout2_src clock\n");
318 err = PTR_ERR(sys_clkout2_src);
319 goto err2;
320 }
321 sys_clkout2 = clk_get(dev, "sys_clkout2");
322 if (IS_ERR(sys_clkout2)) {
323 dev_err(dev, "Could not get sys_clkout2\n");
324 err = PTR_ERR(sys_clkout2);
325 goto err3;
326 }
327
328
329
330
331 func96m_clk = clk_get(dev, "func_96m_ck");
332 if (IS_ERR(func96m_clk)) {
333 dev_err(dev, "Could not get func 96M clock\n");
334 err = PTR_ERR(func96m_clk);
335 goto err4;
336 }
337 clk_set_parent(sys_clkout2_src, func96m_clk);
338 clk_set_rate(sys_clkout2, 12000000);
339
340 if (WARN_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
341 (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0))) {
342 err = -EINVAL;
343 goto err4;
344 }
345
346 gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
347 gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
348
349 return 0;
350err4:
351 clk_put(sys_clkout2);
352err3:
353 clk_put(sys_clkout2_src);
354err2:
355 platform_device_del(n810_snd_device);
356err1:
357 platform_device_put(n810_snd_device);
358
359 return err;
360}
361
362static void __exit n810_soc_exit(void)
363{
364 gpio_free(N810_SPEAKER_AMP_GPIO);
365 gpio_free(N810_HEADSET_AMP_GPIO);
366 clk_put(sys_clkout2_src);
367 clk_put(sys_clkout2);
368 clk_put(func96m_clk);
369
370 platform_device_unregister(n810_snd_device);
371}
372
373module_init(n810_soc_init);
374module_exit(n810_soc_exit);
375
376MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@bitmer.com>");
377MODULE_DESCRIPTION("ALSA SoC Nokia N810");
378MODULE_LICENSE("GPL");
379
