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-rw-r--r--sound/soc/mid-x86/Kconfig14
-rw-r--r--sound/soc/mid-x86/Makefile5
-rw-r--r--sound/soc/mid-x86/mfld_machine.c452
-rw-r--r--sound/soc/mid-x86/sst_platform.c486
-rw-r--r--sound/soc/mid-x86/sst_platform.h63
5 files changed, 1020 insertions, 0 deletions
diff --git a/sound/soc/mid-x86/Kconfig b/sound/soc/mid-x86/Kconfig
new file mode 100644
index 000000000000..29350428f1c2
--- /dev/null
+++ b/sound/soc/mid-x86/Kconfig
@@ -0,0 +1,14 @@
1config SND_MFLD_MACHINE
2 tristate "SOC Machine Audio driver for Intel Medfield MID platform"
3 depends on INTEL_SCU_IPC
4 depends on SND_INTEL_SST
5 select SND_SOC_SN95031
6 select SND_SST_PLATFORM
7 help
8 This adds support for ASoC machine driver for Intel(R) MID Medfield platform
9 used as alsa device in audio substem in Intel(R) MID devices
10 Say Y if you have such a device
11 If unsure select "N".
12
13config SND_SST_PLATFORM
14 tristate
diff --git a/sound/soc/mid-x86/Makefile b/sound/soc/mid-x86/Makefile
new file mode 100644
index 000000000000..639883339465
--- /dev/null
+++ b/sound/soc/mid-x86/Makefile
@@ -0,0 +1,5 @@
1snd-soc-sst-platform-objs := sst_platform.o
2snd-soc-mfld-machine-objs := mfld_machine.o
3
4obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
5obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o
diff --git a/sound/soc/mid-x86/mfld_machine.c b/sound/soc/mid-x86/mfld_machine.c
new file mode 100644
index 000000000000..429aa1be2cff
--- /dev/null
+++ b/sound/soc/mid-x86/mfld_machine.c
@@ -0,0 +1,452 @@
1/*
2 * mfld_machine.c - ASoc Machine driver for Intel Medfield MID platform
3 *
4 * Copyright (C) 2010 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24
25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27#include <linux/init.h>
28#include <linux/device.h>
29#include <linux/slab.h>
30#include <linux/io.h>
31#include <sound/pcm.h>
32#include <sound/pcm_params.h>
33#include <sound/soc.h>
34#include <sound/jack.h>
35#include "../codecs/sn95031.h"
36
37#define MID_MONO 1
38#define MID_STEREO 2
39#define MID_MAX_CAP 5
40#define MFLD_JACK_INSERT 0x04
41
42enum soc_mic_bias_zones {
43 MFLD_MV_START = 0,
44 /* mic bias volutage range for Headphones*/
45 MFLD_MV_HP = 400,
46 /* mic bias volutage range for American Headset*/
47 MFLD_MV_AM_HS = 650,
48 /* mic bias volutage range for Headset*/
49 MFLD_MV_HS = 2000,
50 MFLD_MV_UNDEFINED,
51};
52
53static unsigned int hs_switch;
54static unsigned int lo_dac;
55
56struct mfld_mc_private {
57 struct platform_device *socdev;
58 void __iomem *int_base;
59 struct snd_soc_codec *codec;
60 u8 interrupt_status;
61};
62
63struct snd_soc_jack mfld_jack;
64
65/*Headset jack detection DAPM pins */
66static struct snd_soc_jack_pin mfld_jack_pins[] = {
67 {
68 .pin = "Headphones",
69 .mask = SND_JACK_HEADPHONE,
70 },
71 {
72 .pin = "AMIC1",
73 .mask = SND_JACK_MICROPHONE,
74 },
75};
76
77/* jack detection voltage zones */
78static struct snd_soc_jack_zone mfld_zones[] = {
79 {MFLD_MV_START, MFLD_MV_AM_HS, SND_JACK_HEADPHONE},
80 {MFLD_MV_AM_HS, MFLD_MV_HS, SND_JACK_HEADSET},
81};
82
83/* sound card controls */
84static const char *headset_switch_text[] = {"Earpiece", "Headset"};
85
86static const char *lo_text[] = {"Vibra", "Headset", "IHF", "None"};
87
88static const struct soc_enum headset_enum =
89 SOC_ENUM_SINGLE_EXT(2, headset_switch_text);
90
91static const struct soc_enum lo_enum =
92 SOC_ENUM_SINGLE_EXT(4, lo_text);
93
94static int headset_get_switch(struct snd_kcontrol *kcontrol,
95 struct snd_ctl_elem_value *ucontrol)
96{
97 ucontrol->value.integer.value[0] = hs_switch;
98 return 0;
99}
100
101static int headset_set_switch(struct snd_kcontrol *kcontrol,
102 struct snd_ctl_elem_value *ucontrol)
103{
104 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
105
106 if (ucontrol->value.integer.value[0] == hs_switch)
107 return 0;
108
109 if (ucontrol->value.integer.value[0]) {
110 pr_debug("hs_set HS path\n");
111 snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
112 snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
113 } else {
114 pr_debug("hs_set EP path\n");
115 snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
116 snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
117 }
118 snd_soc_dapm_sync(&codec->dapm);
119 hs_switch = ucontrol->value.integer.value[0];
120
121 return 0;
122}
123
124static void lo_enable_out_pins(struct snd_soc_codec *codec)
125{
126 snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTL");
127 snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTR");
128 snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTL");
129 snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTR");
130 snd_soc_dapm_enable_pin(&codec->dapm, "VIB1OUT");
131 snd_soc_dapm_enable_pin(&codec->dapm, "VIB2OUT");
132 if (hs_switch) {
133 snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
134 snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
135 } else {
136 snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
137 snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
138 }
139}
140
141static int lo_get_switch(struct snd_kcontrol *kcontrol,
142 struct snd_ctl_elem_value *ucontrol)
143{
144 ucontrol->value.integer.value[0] = lo_dac;
145 return 0;
146}
147
148static int lo_set_switch(struct snd_kcontrol *kcontrol,
149 struct snd_ctl_elem_value *ucontrol)
150{
151 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
152
153 if (ucontrol->value.integer.value[0] == lo_dac)
154 return 0;
155
156 /* we dont want to work with last state of lineout so just enable all
157 * pins and then disable pins not required
158 */
159 lo_enable_out_pins(codec);
160 switch (ucontrol->value.integer.value[0]) {
161 case 0:
162 pr_debug("set vibra path\n");
163 snd_soc_dapm_disable_pin(&codec->dapm, "VIB1OUT");
164 snd_soc_dapm_disable_pin(&codec->dapm, "VIB2OUT");
165 snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0);
166 break;
167
168 case 1:
169 pr_debug("set hs path\n");
170 snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
171 snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
172 snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x22);
173 break;
174
175 case 2:
176 pr_debug("set spkr path\n");
177 snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTL");
178 snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTR");
179 snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x44);
180 break;
181
182 case 3:
183 pr_debug("set null path\n");
184 snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTL");
185 snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTR");
186 snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x66);
187 break;
188 }
189 snd_soc_dapm_sync(&codec->dapm);
190 lo_dac = ucontrol->value.integer.value[0];
191 return 0;
192}
193
194static const struct snd_kcontrol_new mfld_snd_controls[] = {
195 SOC_ENUM_EXT("Playback Switch", headset_enum,
196 headset_get_switch, headset_set_switch),
197 SOC_ENUM_EXT("Lineout Mux", lo_enum,
198 lo_get_switch, lo_set_switch),
199};
200
201static const struct snd_soc_dapm_widget mfld_widgets[] = {
202 SND_SOC_DAPM_HP("Headphones", NULL),
203 SND_SOC_DAPM_MIC("Mic", NULL),
204};
205
206static const struct snd_soc_dapm_route mfld_map[] = {
207 {"Headphones", NULL, "HPOUTR"},
208 {"Headphones", NULL, "HPOUTL"},
209 {"Mic", NULL, "AMIC1"},
210};
211
212static void mfld_jack_check(unsigned int intr_status)
213{
214 struct mfld_jack_data jack_data;
215
216 jack_data.mfld_jack = &mfld_jack;
217 jack_data.intr_id = intr_status;
218
219 sn95031_jack_detection(&jack_data);
220 /* TODO: add american headset detection post gpiolib support */
221}
222
223static int mfld_init(struct snd_soc_pcm_runtime *runtime)
224{
225 struct snd_soc_codec *codec = runtime->codec;
226 struct snd_soc_dapm_context *dapm = &codec->dapm;
227 int ret_val;
228
229 /* Add jack sense widgets */
230 snd_soc_dapm_new_controls(dapm, mfld_widgets, ARRAY_SIZE(mfld_widgets));
231
232 /* Set up the map */
233 snd_soc_dapm_add_routes(dapm, mfld_map, ARRAY_SIZE(mfld_map));
234
235 /* always connected */
236 snd_soc_dapm_enable_pin(dapm, "Headphones");
237 snd_soc_dapm_enable_pin(dapm, "Mic");
238 snd_soc_dapm_sync(dapm);
239
240 ret_val = snd_soc_add_controls(codec, mfld_snd_controls,
241 ARRAY_SIZE(mfld_snd_controls));
242 if (ret_val) {
243 pr_err("soc_add_controls failed %d", ret_val);
244 return ret_val;
245 }
246 /* default is earpiece pin, userspace sets it explcitly */
247 snd_soc_dapm_disable_pin(dapm, "Headphones");
248 /* default is lineout NC, userspace sets it explcitly */
249 snd_soc_dapm_disable_pin(dapm, "LINEOUTL");
250 snd_soc_dapm_disable_pin(dapm, "LINEOUTR");
251 lo_dac = 3;
252 hs_switch = 0;
253 /* we dont use linein in this so set to NC */
254 snd_soc_dapm_disable_pin(dapm, "LINEINL");
255 snd_soc_dapm_disable_pin(dapm, "LINEINR");
256 snd_soc_dapm_sync(dapm);
257
258 /* Headset and button jack detection */
259 ret_val = snd_soc_jack_new(codec, "Intel(R) MID Audio Jack",
260 SND_JACK_HEADSET | SND_JACK_BTN_0 |
261 SND_JACK_BTN_1, &mfld_jack);
262 if (ret_val) {
263 pr_err("jack creation failed\n");
264 return ret_val;
265 }
266
267 ret_val = snd_soc_jack_add_pins(&mfld_jack,
268 ARRAY_SIZE(mfld_jack_pins), mfld_jack_pins);
269 if (ret_val) {
270 pr_err("adding jack pins failed\n");
271 return ret_val;
272 }
273 ret_val = snd_soc_jack_add_zones(&mfld_jack,
274 ARRAY_SIZE(mfld_zones), mfld_zones);
275 if (ret_val) {
276 pr_err("adding jack zones failed\n");
277 return ret_val;
278 }
279
280 /* we want to check if anything is inserted at boot,
281 * so send a fake event to codec and it will read adc
282 * to find if anything is there or not */
283 mfld_jack_check(MFLD_JACK_INSERT);
284 return ret_val;
285}
286
287struct snd_soc_dai_link mfld_msic_dailink[] = {
288 {
289 .name = "Medfield Headset",
290 .stream_name = "Headset",
291 .cpu_dai_name = "Headset-cpu-dai",
292 .codec_dai_name = "SN95031 Headset",
293 .codec_name = "sn95031",
294 .platform_name = "sst-platform",
295 .init = mfld_init,
296 },
297 {
298 .name = "Medfield Speaker",
299 .stream_name = "Speaker",
300 .cpu_dai_name = "Speaker-cpu-dai",
301 .codec_dai_name = "SN95031 Speaker",
302 .codec_name = "sn95031",
303 .platform_name = "sst-platform",
304 .init = NULL,
305 },
306 {
307 .name = "Medfield Vibra",
308 .stream_name = "Vibra1",
309 .cpu_dai_name = "Vibra1-cpu-dai",
310 .codec_dai_name = "SN95031 Vibra1",
311 .codec_name = "sn95031",
312 .platform_name = "sst-platform",
313 .init = NULL,
314 },
315 {
316 .name = "Medfield Haptics",
317 .stream_name = "Vibra2",
318 .cpu_dai_name = "Vibra2-cpu-dai",
319 .codec_dai_name = "SN95031 Vibra2",
320 .codec_name = "sn95031",
321 .platform_name = "sst-platform",
322 .init = NULL,
323 },
324};
325
326/* SoC card */
327static struct snd_soc_card snd_soc_card_mfld = {
328 .name = "medfield_audio",
329 .dai_link = mfld_msic_dailink,
330 .num_links = ARRAY_SIZE(mfld_msic_dailink),
331};
332
333static irqreturn_t snd_mfld_jack_intr_handler(int irq, void *dev)
334{
335 struct mfld_mc_private *mc_private = (struct mfld_mc_private *) dev;
336
337 memcpy_fromio(&mc_private->interrupt_status,
338 ((void *)(mc_private->int_base)),
339 sizeof(u8));
340 return IRQ_WAKE_THREAD;
341}
342
343static irqreturn_t snd_mfld_jack_detection(int irq, void *data)
344{
345 struct mfld_mc_private *mc_drv_ctx = (struct mfld_mc_private *) data;
346
347 if (mfld_jack.codec == NULL)
348 return IRQ_HANDLED;
349 mfld_jack_check(mc_drv_ctx->interrupt_status);
350
351 return IRQ_HANDLED;
352}
353
354static int __devinit snd_mfld_mc_probe(struct platform_device *pdev)
355{
356 int ret_val = 0, irq;
357 struct mfld_mc_private *mc_drv_ctx;
358 struct resource *irq_mem;
359
360 pr_debug("snd_mfld_mc_probe called\n");
361
362 /* retrive the irq number */
363 irq = platform_get_irq(pdev, 0);
364
365 /* audio interrupt base of SRAM location where
366 * interrupts are stored by System FW */
367 mc_drv_ctx = kzalloc(sizeof(*mc_drv_ctx), GFP_ATOMIC);
368 if (!mc_drv_ctx) {
369 pr_err("allocation failed\n");
370 return -ENOMEM;
371 }
372
373 irq_mem = platform_get_resource_byname(
374 pdev, IORESOURCE_MEM, "IRQ_BASE");
375 if (!irq_mem) {
376 pr_err("no mem resource given\n");
377 ret_val = -ENODEV;
378 goto unalloc;
379 }
380 mc_drv_ctx->int_base = ioremap_nocache(irq_mem->start,
381 resource_size(irq_mem));
382 if (!mc_drv_ctx->int_base) {
383 pr_err("Mapping of cache failed\n");
384 ret_val = -ENOMEM;
385 goto unalloc;
386 }
387 /* register for interrupt */
388 ret_val = request_threaded_irq(irq, snd_mfld_jack_intr_handler,
389 snd_mfld_jack_detection,
390 IRQF_SHARED, pdev->dev.driver->name, mc_drv_ctx);
391 if (ret_val) {
392 pr_err("cannot register IRQ\n");
393 goto unalloc;
394 }
395 /* register the soc card */
396 snd_soc_card_mfld.dev = &pdev->dev;
397 ret_val = snd_soc_register_card(&snd_soc_card_mfld);
398 if (ret_val) {
399 pr_debug("snd_soc_register_card failed %d\n", ret_val);
400 goto freeirq;
401 }
402 platform_set_drvdata(pdev, mc_drv_ctx);
403 pr_debug("successfully exited probe\n");
404 return ret_val;
405
406freeirq:
407 free_irq(irq, mc_drv_ctx);
408unalloc:
409 kfree(mc_drv_ctx);
410 return ret_val;
411}
412
413static int __devexit snd_mfld_mc_remove(struct platform_device *pdev)
414{
415 struct mfld_mc_private *mc_drv_ctx = platform_get_drvdata(pdev);
416
417 pr_debug("snd_mfld_mc_remove called\n");
418 free_irq(platform_get_irq(pdev, 0), mc_drv_ctx);
419 snd_soc_unregister_card(&snd_soc_card_mfld);
420 kfree(mc_drv_ctx);
421 platform_set_drvdata(pdev, NULL);
422 return 0;
423}
424
425static struct platform_driver snd_mfld_mc_driver = {
426 .driver = {
427 .owner = THIS_MODULE,
428 .name = "msic_audio",
429 },
430 .probe = snd_mfld_mc_probe,
431 .remove = __devexit_p(snd_mfld_mc_remove),
432};
433
434static int __init snd_mfld_driver_init(void)
435{
436 pr_debug("snd_mfld_driver_init called\n");
437 return platform_driver_register(&snd_mfld_mc_driver);
438}
439module_init(snd_mfld_driver_init);
440
441static void __exit snd_mfld_driver_exit(void)
442{
443 pr_debug("snd_mfld_driver_exit called\n");
444 platform_driver_unregister(&snd_mfld_mc_driver);
445}
446module_exit(snd_mfld_driver_exit);
447
448MODULE_DESCRIPTION("ASoC Intel(R) MID Machine driver");
449MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
450MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
451MODULE_LICENSE("GPL v2");
452MODULE_ALIAS("platform:msic-audio");
diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c
new file mode 100644
index 000000000000..5a946b4115a2
--- /dev/null
+++ b/sound/soc/mid-x86/sst_platform.c
@@ -0,0 +1,486 @@
1/*
2 * sst_platform.c - Intel MID Platform driver
3 *
4 * Copyright (C) 2010 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 *
24 *
25 */
26#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
27
28#include <linux/slab.h>
29#include <linux/io.h>
30#include <sound/core.h>
31#include <sound/pcm.h>
32#include <sound/pcm_params.h>
33#include <sound/soc.h>
34#include "../../../drivers/staging/intel_sst/intel_sst_ioctl.h"
35#include "../../../drivers/staging/intel_sst/intel_sst.h"
36#include "sst_platform.h"
37
38static struct snd_pcm_hardware sst_platform_pcm_hw = {
39 .info = (SNDRV_PCM_INFO_INTERLEAVED |
40 SNDRV_PCM_INFO_DOUBLE |
41 SNDRV_PCM_INFO_PAUSE |
42 SNDRV_PCM_INFO_RESUME |
43 SNDRV_PCM_INFO_MMAP|
44 SNDRV_PCM_INFO_MMAP_VALID |
45 SNDRV_PCM_INFO_BLOCK_TRANSFER |
46 SNDRV_PCM_INFO_SYNC_START),
47 .formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16 |
48 SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24 |
49 SNDRV_PCM_FMTBIT_S32 | SNDRV_PCM_FMTBIT_U32),
50 .rates = (SNDRV_PCM_RATE_8000|
51 SNDRV_PCM_RATE_44100 |
52 SNDRV_PCM_RATE_48000),
53 .rate_min = SST_MIN_RATE,
54 .rate_max = SST_MAX_RATE,
55 .channels_min = SST_MIN_CHANNEL,
56 .channels_max = SST_MAX_CHANNEL,
57 .buffer_bytes_max = SST_MAX_BUFFER,
58 .period_bytes_min = SST_MIN_PERIOD_BYTES,
59 .period_bytes_max = SST_MAX_PERIOD_BYTES,
60 .periods_min = SST_MIN_PERIODS,
61 .periods_max = SST_MAX_PERIODS,
62 .fifo_size = SST_FIFO_SIZE,
63};
64
65/* MFLD - MSIC */
66struct snd_soc_dai_driver sst_platform_dai[] = {
67{
68 .name = "Headset-cpu-dai",
69 .id = 0,
70 .playback = {
71 .channels_min = SST_STEREO,
72 .channels_max = SST_STEREO,
73 .rates = SNDRV_PCM_RATE_48000,
74 .formats = SNDRV_PCM_FMTBIT_S24_LE,
75 },
76 .capture = {
77 .channels_min = 1,
78 .channels_max = 5,
79 .rates = SNDRV_PCM_RATE_48000,
80 .formats = SNDRV_PCM_FMTBIT_S24_LE,
81 },
82},
83{
84 .name = "Speaker-cpu-dai",
85 .id = 1,
86 .playback = {
87 .channels_min = SST_MONO,
88 .channels_max = SST_STEREO,
89 .rates = SNDRV_PCM_RATE_48000,
90 .formats = SNDRV_PCM_FMTBIT_S24_LE,
91 },
92},
93{
94 .name = "Vibra1-cpu-dai",
95 .id = 2,
96 .playback = {
97 .channels_min = SST_MONO,
98 .channels_max = SST_MONO,
99 .rates = SNDRV_PCM_RATE_48000,
100 .formats = SNDRV_PCM_FMTBIT_S24_LE,
101 },
102},
103{
104 .name = "Vibra2-cpu-dai",
105 .id = 3,
106 .playback = {
107 .channels_min = SST_MONO,
108 .channels_max = SST_STEREO,
109 .rates = SNDRV_PCM_RATE_48000,
110 .formats = SNDRV_PCM_FMTBIT_S24_LE,
111 },
112},
113};
114
115/* helper functions */
116static inline void sst_set_stream_status(struct sst_runtime_stream *stream,
117 int state)
118{
119 unsigned long flags;
120 spin_lock_irqsave(&stream->status_lock, flags);
121 stream->stream_status = state;
122 spin_unlock_irqrestore(&stream->status_lock, flags);
123}
124
125static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
126{
127 int state;
128 unsigned long flags;
129
130 spin_lock_irqsave(&stream->status_lock, flags);
131 state = stream->stream_status;
132 spin_unlock_irqrestore(&stream->status_lock, flags);
133 return state;
134}
135
136static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
137 struct snd_sst_stream_params *param)
138{
139
140 param->uc.pcm_params.codec = SST_CODEC_TYPE_PCM;
141 param->uc.pcm_params.num_chan = (u8) substream->runtime->channels;
142 param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
143 param->uc.pcm_params.reserved = 0;
144 param->uc.pcm_params.sfreq = substream->runtime->rate;
145 param->uc.pcm_params.ring_buffer_size =
146 snd_pcm_lib_buffer_bytes(substream);
147 param->uc.pcm_params.period_count = substream->runtime->period_size;
148 param->uc.pcm_params.ring_buffer_addr =
149 virt_to_phys(substream->dma_buffer.area);
150 pr_debug("period_cnt = %d\n", param->uc.pcm_params.period_count);
151 pr_debug("sfreq= %d, wd_sz = %d\n",
152 param->uc.pcm_params.sfreq, param->uc.pcm_params.pcm_wd_sz);
153}
154
155static int sst_platform_alloc_stream(struct snd_pcm_substream *substream)
156{
157 struct sst_runtime_stream *stream =
158 substream->runtime->private_data;
159 struct snd_sst_stream_params param = {{{0,},},};
160 struct snd_sst_params str_params = {0};
161 int ret_val;
162
163 /* set codec params and inform SST driver the same */
164 sst_fill_pcm_params(substream, &param);
165 substream->runtime->dma_area = substream->dma_buffer.area;
166 str_params.sparams = param;
167 str_params.codec = param.uc.pcm_params.codec;
168 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
169 str_params.ops = STREAM_OPS_PLAYBACK;
170 str_params.device_type = substream->pcm->device + 1;
171 pr_debug("Playbck stream,Device %d\n",
172 substream->pcm->device);
173 } else {
174 str_params.ops = STREAM_OPS_CAPTURE;
175 str_params.device_type = SND_SST_DEVICE_CAPTURE;
176 pr_debug("Capture stream,Device %d\n",
177 substream->pcm->device);
178 }
179 ret_val = stream->sstdrv_ops->pcm_control->open(&str_params);
180 pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val);
181 if (ret_val < 0)
182 return ret_val;
183
184 stream->stream_info.str_id = ret_val;
185 pr_debug("str id : %d\n", stream->stream_info.str_id);
186 return ret_val;
187}
188
189static void sst_period_elapsed(void *mad_substream)
190{
191 struct snd_pcm_substream *substream = mad_substream;
192 struct sst_runtime_stream *stream;
193 int status;
194
195 if (!substream || !substream->runtime)
196 return;
197 stream = substream->runtime->private_data;
198 if (!stream)
199 return;
200 status = sst_get_stream_status(stream);
201 if (status != SST_PLATFORM_RUNNING)
202 return;
203 snd_pcm_period_elapsed(substream);
204}
205
206static int sst_platform_init_stream(struct snd_pcm_substream *substream)
207{
208 struct sst_runtime_stream *stream =
209 substream->runtime->private_data;
210 int ret_val;
211
212 pr_debug("setting buffer ptr param\n");
213 sst_set_stream_status(stream, SST_PLATFORM_INIT);
214 stream->stream_info.period_elapsed = sst_period_elapsed;
215 stream->stream_info.mad_substream = substream;
216 stream->stream_info.buffer_ptr = 0;
217 stream->stream_info.sfreq = substream->runtime->rate;
218 ret_val = stream->sstdrv_ops->pcm_control->device_control(
219 SST_SND_STREAM_INIT, &stream->stream_info);
220 if (ret_val)
221 pr_err("control_set ret error %d\n", ret_val);
222 return ret_val;
223
224}
225/* end -- helper functions */
226
227static int sst_platform_open(struct snd_pcm_substream *substream)
228{
229 struct snd_pcm_runtime *runtime;
230 struct sst_runtime_stream *stream;
231 int ret_val = 0;
232
233 pr_debug("sst_platform_open called\n");
234 runtime = substream->runtime;
235 runtime->hw = sst_platform_pcm_hw;
236 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
237 if (!stream)
238 return -ENOMEM;
239 spin_lock_init(&stream->status_lock);
240 stream->stream_info.str_id = 0;
241 sst_set_stream_status(stream, SST_PLATFORM_INIT);
242 stream->stream_info.mad_substream = substream;
243 /* allocate memory for SST API set */
244 stream->sstdrv_ops = kzalloc(sizeof(*stream->sstdrv_ops),
245 GFP_KERNEL);
246 if (!stream->sstdrv_ops) {
247 pr_err("sst: mem allocation for ops fail\n");
248 kfree(stream);
249 return -ENOMEM;
250 }
251 stream->sstdrv_ops->vendor_id = MSIC_VENDOR_ID;
252 stream->sstdrv_ops->module_name = SST_CARD_NAMES;
253 /* registering with SST driver to get access to SST APIs to use */
254 ret_val = register_sst_card(stream->sstdrv_ops);
255 if (ret_val) {
256 pr_err("sst: sst card registration failed\n");
257 kfree(stream->sstdrv_ops);
258 kfree(stream);
259 return ret_val;
260 }
261 runtime->private_data = stream;
262 return snd_pcm_hw_constraint_integer(runtime,
263 SNDRV_PCM_HW_PARAM_PERIODS);
264}
265
266static int sst_platform_close(struct snd_pcm_substream *substream)
267{
268 struct sst_runtime_stream *stream;
269 int ret_val = 0, str_id;
270
271 pr_debug("sst_platform_close called\n");
272 stream = substream->runtime->private_data;
273 str_id = stream->stream_info.str_id;
274 if (str_id)
275 ret_val = stream->sstdrv_ops->pcm_control->close(str_id);
276 unregister_sst_card(stream->sstdrv_ops);
277 kfree(stream->sstdrv_ops);
278 kfree(stream);
279 return ret_val;
280}
281
282static int sst_platform_pcm_prepare(struct snd_pcm_substream *substream)
283{
284 struct sst_runtime_stream *stream;
285 int ret_val = 0, str_id;
286
287 pr_debug("sst_platform_pcm_prepare called\n");
288 stream = substream->runtime->private_data;
289 str_id = stream->stream_info.str_id;
290 if (stream->stream_info.str_id) {
291 ret_val = stream->sstdrv_ops->pcm_control->device_control(
292 SST_SND_DROP, &str_id);
293 return ret_val;
294 }
295
296 ret_val = sst_platform_alloc_stream(substream);
297 if (ret_val < 0)
298 return ret_val;
299 snprintf(substream->pcm->id, sizeof(substream->pcm->id),
300 "%d", stream->stream_info.str_id);
301
302 ret_val = sst_platform_init_stream(substream);
303 if (ret_val)
304 return ret_val;
305 substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
306 return ret_val;
307}
308
309static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
310 int cmd)
311{
312 int ret_val = 0, str_id;
313 struct sst_runtime_stream *stream;
314 int str_cmd, status;
315
316 pr_debug("sst_platform_pcm_trigger called\n");
317 stream = substream->runtime->private_data;
318 str_id = stream->stream_info.str_id;
319 switch (cmd) {
320 case SNDRV_PCM_TRIGGER_START:
321 pr_debug("sst: Trigger Start\n");
322 str_cmd = SST_SND_START;
323 status = SST_PLATFORM_RUNNING;
324 stream->stream_info.mad_substream = substream;
325 break;
326 case SNDRV_PCM_TRIGGER_STOP:
327 pr_debug("sst: in stop\n");
328 str_cmd = SST_SND_DROP;
329 status = SST_PLATFORM_DROPPED;
330 break;
331 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
332 pr_debug("sst: in pause\n");
333 str_cmd = SST_SND_PAUSE;
334 status = SST_PLATFORM_PAUSED;
335 break;
336 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
337 pr_debug("sst: in pause release\n");
338 str_cmd = SST_SND_RESUME;
339 status = SST_PLATFORM_RUNNING;
340 break;
341 default:
342 return -EINVAL;
343 }
344 ret_val = stream->sstdrv_ops->pcm_control->device_control(str_cmd,
345 &str_id);
346 if (!ret_val)
347 sst_set_stream_status(stream, status);
348
349 return ret_val;
350}
351
352
353static snd_pcm_uframes_t sst_platform_pcm_pointer
354 (struct snd_pcm_substream *substream)
355{
356 struct sst_runtime_stream *stream;
357 int ret_val, status;
358 struct pcm_stream_info *str_info;
359
360 stream = substream->runtime->private_data;
361 status = sst_get_stream_status(stream);
362 if (status == SST_PLATFORM_INIT)
363 return 0;
364 str_info = &stream->stream_info;
365 ret_val = stream->sstdrv_ops->pcm_control->device_control(
366 SST_SND_BUFFER_POINTER, str_info);
367 if (ret_val) {
368 pr_err("sst: error code = %d\n", ret_val);
369 return ret_val;
370 }
371 return stream->stream_info.buffer_ptr;
372}
373
374static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream,
375 struct snd_pcm_hw_params *params)
376{
377 snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
378 memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
379
380 return 0;
381}
382
383static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream)
384{
385 return snd_pcm_lib_free_pages(substream);
386}
387
388static struct snd_pcm_ops sst_platform_ops = {
389 .open = sst_platform_open,
390 .close = sst_platform_close,
391 .ioctl = snd_pcm_lib_ioctl,
392 .prepare = sst_platform_pcm_prepare,
393 .trigger = sst_platform_pcm_trigger,
394 .pointer = sst_platform_pcm_pointer,
395 .hw_params = sst_platform_pcm_hw_params,
396 .hw_free = sst_platform_pcm_hw_free,
397};
398
399static void sst_pcm_free(struct snd_pcm *pcm)
400{
401 pr_debug("sst_pcm_free called\n");
402 snd_pcm_lib_preallocate_free_for_all(pcm);
403}
404
405int sst_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
406 struct snd_pcm *pcm)
407{
408 int retval = 0;
409
410 pr_debug("sst_pcm_new called\n");
411 if (dai->driver->playback.channels_min ||
412 dai->driver->capture.channels_min) {
413 retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
414 SNDRV_DMA_TYPE_CONTINUOUS,
415 snd_dma_continuous_data(GFP_KERNEL),
416 SST_MIN_BUFFER, SST_MAX_BUFFER);
417 if (retval) {
418 pr_err("dma buffer allocationf fail\n");
419 return retval;
420 }
421 }
422 return retval;
423}
424struct snd_soc_platform_driver sst_soc_platform_drv = {
425 .ops = &sst_platform_ops,
426 .pcm_new = sst_pcm_new,
427 .pcm_free = sst_pcm_free,
428};
429
430static int sst_platform_probe(struct platform_device *pdev)
431{
432 int ret;
433
434 pr_debug("sst_platform_probe called\n");
435 ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
436 if (ret) {
437 pr_err("registering soc platform failed\n");
438 return ret;
439 }
440
441 ret = snd_soc_register_dais(&pdev->dev,
442 sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
443 if (ret) {
444 pr_err("registering cpu dais failed\n");
445 snd_soc_unregister_platform(&pdev->dev);
446 }
447 return ret;
448}
449
450static int sst_platform_remove(struct platform_device *pdev)
451{
452
453 snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(sst_platform_dai));
454 snd_soc_unregister_platform(&pdev->dev);
455 pr_debug("sst_platform_remove success\n");
456 return 0;
457}
458
459static struct platform_driver sst_platform_driver = {
460 .driver = {
461 .name = "sst-platform",
462 .owner = THIS_MODULE,
463 },
464 .probe = sst_platform_probe,
465 .remove = sst_platform_remove,
466};
467
468static int __init sst_soc_platform_init(void)
469{
470 pr_debug("sst_soc_platform_init called\n");
471 return platform_driver_register(&sst_platform_driver);
472}
473module_init(sst_soc_platform_init);
474
475static void __exit sst_soc_platform_exit(void)
476{
477 platform_driver_unregister(&sst_platform_driver);
478 pr_debug("sst_soc_platform_exit success\n");
479}
480module_exit(sst_soc_platform_exit);
481
482MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
483MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
484MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
485MODULE_LICENSE("GPL v2");
486MODULE_ALIAS("platform:sst-platform");
diff --git a/sound/soc/mid-x86/sst_platform.h b/sound/soc/mid-x86/sst_platform.h
new file mode 100644
index 000000000000..df370286694f
--- /dev/null
+++ b/sound/soc/mid-x86/sst_platform.h
@@ -0,0 +1,63 @@
1/*
2 * sst_platform.h - Intel MID Platform driver header file
3 *
4 * Copyright (C) 2010 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 *
24 *
25 */
26
27#ifndef __SST_PLATFORMDRV_H__
28#define __SST_PLATFORMDRV_H__
29
30#define SST_MONO 1
31#define SST_STEREO 2
32#define SST_MAX_CAP 5
33
34#define SST_MIN_RATE 8000
35#define SST_MAX_RATE 48000
36#define SST_MIN_CHANNEL 1
37#define SST_MAX_CHANNEL 5
38#define SST_MAX_BUFFER (800*1024)
39#define SST_MIN_BUFFER (800*1024)
40#define SST_MIN_PERIOD_BYTES 32
41#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
42#define SST_MIN_PERIODS 2
43#define SST_MAX_PERIODS (1024*2)
44#define SST_FIFO_SIZE 0
45#define SST_CARD_NAMES "intel_mid_card"
46#define MSIC_VENDOR_ID 3
47
48struct sst_runtime_stream {
49 int stream_status;
50 struct pcm_stream_info stream_info;
51 struct intel_sst_card_ops *sstdrv_ops;
52 spinlock_t status_lock;
53};
54
55enum sst_drv_status {
56 SST_PLATFORM_INIT = 1,
57 SST_PLATFORM_STARTED,
58 SST_PLATFORM_RUNNING,
59 SST_PLATFORM_PAUSED,
60 SST_PLATFORM_DROPPED,
61};
62
63#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-05 18:24:22 -0400