1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2021 Advanced Micro Devices, Inc.
7 //
8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
9 //
10
11 /*
12 * Generic Hardware interface for ACP Audio I2S controller
13 */
14
15 #include <linux/platform_device.h>
16 #include <linux/module.h>
17 #include <linux/err.h>
18 #include <linux/io.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dai.h>
22 #include <linux/dma-mapping.h>
23 #include <linux/bitfield.h>
24
25 #include "amd.h"
26
27 #define DRV_NAME "acp_i2s_playcap"
28 #define I2S_MASTER_MODE_ENABLE 1
29 #define LRCLK_DIV_FIELD GENMASK(10, 2)
30 #define BCLK_DIV_FIELD GENMASK(23, 11)
31 #define ACP63_LRCLK_DIV_FIELD GENMASK(12, 2)
32 #define ACP63_BCLK_DIV_FIELD GENMASK(23, 13)
33
acp_set_i2s_clk(struct acp_dev_data * adata,int dai_id)34 static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id)
35 {
36 u32 i2s_clk_reg, val;
37 struct acp_chip_info *chip;
38 struct device *dev;
39
40 dev = adata->dev;
41 chip = dev_get_platdata(dev);
42 switch (dai_id) {
43 case I2S_SP_INSTANCE:
44 i2s_clk_reg = ACP_I2STDM0_MSTRCLKGEN;
45 break;
46 case I2S_BT_INSTANCE:
47 i2s_clk_reg = ACP_I2STDM1_MSTRCLKGEN;
48 break;
49 case I2S_HS_INSTANCE:
50 i2s_clk_reg = ACP_I2STDM2_MSTRCLKGEN;
51 break;
52 default:
53 i2s_clk_reg = ACP_I2STDM0_MSTRCLKGEN;
54 break;
55 }
56
57 val = I2S_MASTER_MODE_ENABLE;
58 if (adata->tdm_mode)
59 val |= BIT(1);
60
61 switch (chip->acp_rev) {
62 case ACP63_PCI_ID:
63 case ACP70_PCI_ID:
64 case ACP71_PCI_ID:
65 val |= FIELD_PREP(ACP63_LRCLK_DIV_FIELD, adata->lrclk_div);
66 val |= FIELD_PREP(ACP63_BCLK_DIV_FIELD, adata->bclk_div);
67 break;
68 default:
69 val |= FIELD_PREP(LRCLK_DIV_FIELD, adata->lrclk_div);
70 val |= FIELD_PREP(BCLK_DIV_FIELD, adata->bclk_div);
71 }
72 writel(val, adata->acp_base + i2s_clk_reg);
73 }
74
acp_i2s_set_fmt(struct snd_soc_dai * cpu_dai,unsigned int fmt)75 static int acp_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
76 unsigned int fmt)
77 {
78 struct acp_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai);
79 int mode;
80
81 mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
82 switch (mode) {
83 case SND_SOC_DAIFMT_I2S:
84 adata->tdm_mode = TDM_DISABLE;
85 break;
86 case SND_SOC_DAIFMT_DSP_A:
87 adata->tdm_mode = TDM_ENABLE;
88 break;
89 default:
90 return -EINVAL;
91 }
92 return 0;
93 }
94
acp_i2s_set_tdm_slot(struct snd_soc_dai * dai,u32 tx_mask,u32 rx_mask,int slots,int slot_width)95 static int acp_i2s_set_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, u32 rx_mask,
96 int slots, int slot_width)
97 {
98 struct device *dev = dai->component->dev;
99 struct acp_dev_data *adata = snd_soc_dai_get_drvdata(dai);
100 struct acp_chip_info *chip;
101 struct acp_stream *stream;
102 int slot_len, no_of_slots;
103
104 chip = dev_get_platdata(dev);
105 switch (slot_width) {
106 case SLOT_WIDTH_8:
107 slot_len = 8;
108 break;
109 case SLOT_WIDTH_16:
110 slot_len = 16;
111 break;
112 case SLOT_WIDTH_24:
113 slot_len = 24;
114 break;
115 case SLOT_WIDTH_32:
116 slot_len = 0;
117 break;
118 default:
119 dev_err(dev, "Unsupported bitdepth %d\n", slot_width);
120 return -EINVAL;
121 }
122
123 switch (chip->acp_rev) {
124 case ACP_RN_PCI_ID:
125 case ACP_RMB_PCI_ID:
126 switch (slots) {
127 case 1 ... 7:
128 no_of_slots = slots;
129 break;
130 case 8:
131 no_of_slots = 0;
132 break;
133 default:
134 dev_err(dev, "Unsupported slots %d\n", slots);
135 return -EINVAL;
136 }
137 break;
138 case ACP63_PCI_ID:
139 case ACP70_PCI_ID:
140 case ACP71_PCI_ID:
141 switch (slots) {
142 case 1 ... 31:
143 no_of_slots = slots;
144 break;
145 case 32:
146 no_of_slots = 0;
147 break;
148 default:
149 dev_err(dev, "Unsupported slots %d\n", slots);
150 return -EINVAL;
151 }
152 break;
153 default:
154 dev_err(dev, "Unknown chip revision %d\n", chip->acp_rev);
155 return -EINVAL;
156 }
157
158 slots = no_of_slots;
159
160 spin_lock_irq(&adata->acp_lock);
161 list_for_each_entry(stream, &adata->stream_list, list) {
162 switch (chip->acp_rev) {
163 case ACP_RN_PCI_ID:
164 case ACP_RMB_PCI_ID:
165 if (tx_mask && stream->dir == SNDRV_PCM_STREAM_PLAYBACK)
166 adata->tdm_tx_fmt[stream->dai_id - 1] =
167 FRM_LEN | (slots << 15) | (slot_len << 18);
168 else if (rx_mask && stream->dir == SNDRV_PCM_STREAM_CAPTURE)
169 adata->tdm_rx_fmt[stream->dai_id - 1] =
170 FRM_LEN | (slots << 15) | (slot_len << 18);
171 break;
172 case ACP63_PCI_ID:
173 case ACP70_PCI_ID:
174 case ACP71_PCI_ID:
175 if (tx_mask && stream->dir == SNDRV_PCM_STREAM_PLAYBACK)
176 adata->tdm_tx_fmt[stream->dai_id - 1] =
177 FRM_LEN | (slots << 13) | (slot_len << 18);
178 else if (rx_mask && stream->dir == SNDRV_PCM_STREAM_CAPTURE)
179 adata->tdm_rx_fmt[stream->dai_id - 1] =
180 FRM_LEN | (slots << 13) | (slot_len << 18);
181 break;
182 default:
183 dev_err(dev, "Unknown chip revision %d\n", chip->acp_rev);
184 return -EINVAL;
185 }
186 }
187 spin_unlock_irq(&adata->acp_lock);
188 return 0;
189 }
190
acp_i2s_hwparams(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)191 static int acp_i2s_hwparams(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params,
192 struct snd_soc_dai *dai)
193 {
194 struct device *dev = dai->component->dev;
195 struct acp_dev_data *adata;
196 struct acp_resource *rsrc;
197 u32 val;
198 u32 xfer_resolution;
199 u32 reg_val, fmt_reg, tdm_fmt;
200 u32 lrclk_div_val, bclk_div_val;
201
202 adata = snd_soc_dai_get_drvdata(dai);
203 rsrc = adata->rsrc;
204
205 /* These values are as per Hardware Spec */
206 switch (params_format(params)) {
207 case SNDRV_PCM_FORMAT_U8:
208 case SNDRV_PCM_FORMAT_S8:
209 xfer_resolution = 0x0;
210 break;
211 case SNDRV_PCM_FORMAT_S16_LE:
212 xfer_resolution = 0x02;
213 break;
214 case SNDRV_PCM_FORMAT_S24_LE:
215 xfer_resolution = 0x04;
216 break;
217 case SNDRV_PCM_FORMAT_S32_LE:
218 xfer_resolution = 0x05;
219 break;
220 default:
221 return -EINVAL;
222 }
223
224 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
225 switch (dai->driver->id) {
226 case I2S_BT_INSTANCE:
227 reg_val = ACP_BTTDM_ITER;
228 fmt_reg = ACP_BTTDM_TXFRMT;
229 break;
230 case I2S_SP_INSTANCE:
231 reg_val = ACP_I2STDM_ITER;
232 fmt_reg = ACP_I2STDM_TXFRMT;
233 break;
234 case I2S_HS_INSTANCE:
235 reg_val = ACP_HSTDM_ITER;
236 fmt_reg = ACP_HSTDM_TXFRMT;
237 break;
238 default:
239 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
240 return -EINVAL;
241 }
242 adata->xfer_tx_resolution[dai->driver->id - 1] = xfer_resolution;
243 } else {
244 switch (dai->driver->id) {
245 case I2S_BT_INSTANCE:
246 reg_val = ACP_BTTDM_IRER;
247 fmt_reg = ACP_BTTDM_RXFRMT;
248 break;
249 case I2S_SP_INSTANCE:
250 reg_val = ACP_I2STDM_IRER;
251 fmt_reg = ACP_I2STDM_RXFRMT;
252 break;
253 case I2S_HS_INSTANCE:
254 reg_val = ACP_HSTDM_IRER;
255 fmt_reg = ACP_HSTDM_RXFRMT;
256 break;
257 default:
258 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
259 return -EINVAL;
260 }
261 adata->xfer_rx_resolution[dai->driver->id - 1] = xfer_resolution;
262 }
263
264 val = readl(adata->acp_base + reg_val);
265 val &= ~ACP3x_ITER_IRER_SAMP_LEN_MASK;
266 val = val | (xfer_resolution << 3);
267 writel(val, adata->acp_base + reg_val);
268
269 if (adata->tdm_mode) {
270 val = readl(adata->acp_base + reg_val);
271 writel(val | BIT(1), adata->acp_base + reg_val);
272 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
273 tdm_fmt = adata->tdm_tx_fmt[dai->driver->id - 1];
274 else
275 tdm_fmt = adata->tdm_rx_fmt[dai->driver->id - 1];
276 writel(tdm_fmt, adata->acp_base + fmt_reg);
277 }
278
279 if (rsrc->soc_mclk) {
280 switch (params_format(params)) {
281 case SNDRV_PCM_FORMAT_S16_LE:
282 switch (params_rate(params)) {
283 case 8000:
284 bclk_div_val = 768;
285 break;
286 case 16000:
287 bclk_div_val = 384;
288 break;
289 case 24000:
290 bclk_div_val = 256;
291 break;
292 case 32000:
293 bclk_div_val = 192;
294 break;
295 case 44100:
296 case 48000:
297 bclk_div_val = 128;
298 break;
299 case 88200:
300 case 96000:
301 bclk_div_val = 64;
302 break;
303 case 192000:
304 bclk_div_val = 32;
305 break;
306 default:
307 return -EINVAL;
308 }
309 lrclk_div_val = 32;
310 break;
311 case SNDRV_PCM_FORMAT_S32_LE:
312 switch (params_rate(params)) {
313 case 8000:
314 bclk_div_val = 384;
315 break;
316 case 16000:
317 bclk_div_val = 192;
318 break;
319 case 24000:
320 bclk_div_val = 128;
321 break;
322 case 32000:
323 bclk_div_val = 96;
324 break;
325 case 44100:
326 case 48000:
327 bclk_div_val = 64;
328 break;
329 case 88200:
330 case 96000:
331 bclk_div_val = 32;
332 break;
333 case 192000:
334 bclk_div_val = 16;
335 break;
336 default:
337 return -EINVAL;
338 }
339 lrclk_div_val = 64;
340 break;
341 default:
342 return -EINVAL;
343 }
344
345 switch (params_rate(params)) {
346 case 8000:
347 case 16000:
348 case 24000:
349 case 48000:
350 case 96000:
351 case 192000:
352 switch (params_channels(params)) {
353 case 2:
354 break;
355 case 4:
356 bclk_div_val = bclk_div_val >> 1;
357 lrclk_div_val = lrclk_div_val << 1;
358 break;
359 case 8:
360 bclk_div_val = bclk_div_val >> 2;
361 lrclk_div_val = lrclk_div_val << 2;
362 break;
363 case 16:
364 bclk_div_val = bclk_div_val >> 3;
365 lrclk_div_val = lrclk_div_val << 3;
366 break;
367 case 32:
368 bclk_div_val = bclk_div_val >> 4;
369 lrclk_div_val = lrclk_div_val << 4;
370 break;
371 default:
372 dev_err(dev, "Unsupported channels %#x\n",
373 params_channels(params));
374 }
375 break;
376 default:
377 break;
378 }
379 adata->lrclk_div = lrclk_div_val;
380 adata->bclk_div = bclk_div_val;
381 }
382 return 0;
383 }
384
acp_i2s_trigger(struct snd_pcm_substream * substream,int cmd,struct snd_soc_dai * dai)385 static int acp_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
386 {
387 struct acp_stream *stream = substream->runtime->private_data;
388 struct device *dev = dai->component->dev;
389 struct acp_dev_data *adata = dev_get_drvdata(dev);
390 struct acp_resource *rsrc = adata->rsrc;
391 u32 val, period_bytes, reg_val, ier_val, water_val, buf_size, buf_reg;
392
393 period_bytes = frames_to_bytes(substream->runtime, substream->runtime->period_size);
394 buf_size = frames_to_bytes(substream->runtime, substream->runtime->buffer_size);
395
396 switch (cmd) {
397 case SNDRV_PCM_TRIGGER_START:
398 case SNDRV_PCM_TRIGGER_RESUME:
399 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
400 stream->bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream);
401 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
402 switch (dai->driver->id) {
403 case I2S_BT_INSTANCE:
404 water_val = ACP_BT_TX_INTR_WATERMARK_SIZE(adata);
405 reg_val = ACP_BTTDM_ITER;
406 ier_val = ACP_BTTDM_IER;
407 buf_reg = ACP_BT_TX_RINGBUFSIZE(adata);
408 break;
409 case I2S_SP_INSTANCE:
410 water_val = ACP_I2S_TX_INTR_WATERMARK_SIZE(adata);
411 reg_val = ACP_I2STDM_ITER;
412 ier_val = ACP_I2STDM_IER;
413 buf_reg = ACP_I2S_TX_RINGBUFSIZE(adata);
414 break;
415 case I2S_HS_INSTANCE:
416 water_val = ACP_HS_TX_INTR_WATERMARK_SIZE;
417 reg_val = ACP_HSTDM_ITER;
418 ier_val = ACP_HSTDM_IER;
419 buf_reg = ACP_HS_TX_RINGBUFSIZE;
420 break;
421 default:
422 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
423 return -EINVAL;
424 }
425 } else {
426 switch (dai->driver->id) {
427 case I2S_BT_INSTANCE:
428 water_val = ACP_BT_RX_INTR_WATERMARK_SIZE(adata);
429 reg_val = ACP_BTTDM_IRER;
430 ier_val = ACP_BTTDM_IER;
431 buf_reg = ACP_BT_RX_RINGBUFSIZE(adata);
432 break;
433 case I2S_SP_INSTANCE:
434 water_val = ACP_I2S_RX_INTR_WATERMARK_SIZE(adata);
435 reg_val = ACP_I2STDM_IRER;
436 ier_val = ACP_I2STDM_IER;
437 buf_reg = ACP_I2S_RX_RINGBUFSIZE(adata);
438 break;
439 case I2S_HS_INSTANCE:
440 water_val = ACP_HS_RX_INTR_WATERMARK_SIZE;
441 reg_val = ACP_HSTDM_IRER;
442 ier_val = ACP_HSTDM_IER;
443 buf_reg = ACP_HS_RX_RINGBUFSIZE;
444 break;
445 default:
446 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
447 return -EINVAL;
448 }
449 }
450
451 writel(period_bytes, adata->acp_base + water_val);
452 writel(buf_size, adata->acp_base + buf_reg);
453 if (rsrc->soc_mclk)
454 acp_set_i2s_clk(adata, dai->driver->id);
455 val = readl(adata->acp_base + reg_val);
456 val = val | BIT(0);
457 writel(val, adata->acp_base + reg_val);
458 writel(1, adata->acp_base + ier_val);
459 return 0;
460 case SNDRV_PCM_TRIGGER_STOP:
461 case SNDRV_PCM_TRIGGER_SUSPEND:
462 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
463 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
464 switch (dai->driver->id) {
465 case I2S_BT_INSTANCE:
466 reg_val = ACP_BTTDM_ITER;
467 break;
468 case I2S_SP_INSTANCE:
469 reg_val = ACP_I2STDM_ITER;
470 break;
471 case I2S_HS_INSTANCE:
472 reg_val = ACP_HSTDM_ITER;
473 break;
474 default:
475 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
476 return -EINVAL;
477 }
478
479 } else {
480 switch (dai->driver->id) {
481 case I2S_BT_INSTANCE:
482 reg_val = ACP_BTTDM_IRER;
483 break;
484 case I2S_SP_INSTANCE:
485 reg_val = ACP_I2STDM_IRER;
486 break;
487 case I2S_HS_INSTANCE:
488 reg_val = ACP_HSTDM_IRER;
489 break;
490 default:
491 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
492 return -EINVAL;
493 }
494 }
495 val = readl(adata->acp_base + reg_val);
496 val = val & ~BIT(0);
497 writel(val, adata->acp_base + reg_val);
498
499 if (!(readl(adata->acp_base + ACP_BTTDM_ITER) & BIT(0)) &&
500 !(readl(adata->acp_base + ACP_BTTDM_IRER) & BIT(0)))
501 writel(0, adata->acp_base + ACP_BTTDM_IER);
502 if (!(readl(adata->acp_base + ACP_I2STDM_ITER) & BIT(0)) &&
503 !(readl(adata->acp_base + ACP_I2STDM_IRER) & BIT(0)))
504 writel(0, adata->acp_base + ACP_I2STDM_IER);
505 if (!(readl(adata->acp_base + ACP_HSTDM_ITER) & BIT(0)) &&
506 !(readl(adata->acp_base + ACP_HSTDM_IRER) & BIT(0)))
507 writel(0, adata->acp_base + ACP_HSTDM_IER);
508 return 0;
509 default:
510 return -EINVAL;
511 }
512
513 return 0;
514 }
515
acp_i2s_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)516 static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
517 {
518 struct device *dev = dai->component->dev;
519 struct acp_dev_data *adata = dev_get_drvdata(dev);
520 struct acp_chip_info *chip;
521 struct acp_resource *rsrc = adata->rsrc;
522 struct acp_stream *stream = substream->runtime->private_data;
523 u32 reg_dma_size = 0, reg_fifo_size = 0, reg_fifo_addr = 0;
524 u32 phy_addr = 0, acp_fifo_addr = 0, ext_int_ctrl;
525 unsigned int dir = substream->stream;
526
527 chip = dev_get_platdata(dev);
528 switch (dai->driver->id) {
529 case I2S_SP_INSTANCE:
530 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
531 reg_dma_size = ACP_I2S_TX_DMA_SIZE(adata);
532 acp_fifo_addr = rsrc->sram_pte_offset +
533 SP_PB_FIFO_ADDR_OFFSET;
534 reg_fifo_addr = ACP_I2S_TX_FIFOADDR(adata);
535 reg_fifo_size = ACP_I2S_TX_FIFOSIZE(adata);
536
537 if (chip->acp_rev >= ACP70_PCI_ID)
538 phy_addr = ACP7x_I2S_SP_TX_MEM_WINDOW_START;
539 else
540 phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset;
541 writel(phy_addr, adata->acp_base + ACP_I2S_TX_RINGBUFADDR(adata));
542 } else {
543 reg_dma_size = ACP_I2S_RX_DMA_SIZE(adata);
544 acp_fifo_addr = rsrc->sram_pte_offset +
545 SP_CAPT_FIFO_ADDR_OFFSET;
546 reg_fifo_addr = ACP_I2S_RX_FIFOADDR(adata);
547 reg_fifo_size = ACP_I2S_RX_FIFOSIZE(adata);
548
549 if (chip->acp_rev >= ACP70_PCI_ID)
550 phy_addr = ACP7x_I2S_SP_RX_MEM_WINDOW_START;
551 else
552 phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset;
553 writel(phy_addr, adata->acp_base + ACP_I2S_RX_RINGBUFADDR(adata));
554 }
555 break;
556 case I2S_BT_INSTANCE:
557 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
558 reg_dma_size = ACP_BT_TX_DMA_SIZE(adata);
559 acp_fifo_addr = rsrc->sram_pte_offset +
560 BT_PB_FIFO_ADDR_OFFSET;
561 reg_fifo_addr = ACP_BT_TX_FIFOADDR(adata);
562 reg_fifo_size = ACP_BT_TX_FIFOSIZE(adata);
563
564 if (chip->acp_rev >= ACP70_PCI_ID)
565 phy_addr = ACP7x_I2S_BT_TX_MEM_WINDOW_START;
566 else
567 phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
568 writel(phy_addr, adata->acp_base + ACP_BT_TX_RINGBUFADDR(adata));
569 } else {
570 reg_dma_size = ACP_BT_RX_DMA_SIZE(adata);
571 acp_fifo_addr = rsrc->sram_pte_offset +
572 BT_CAPT_FIFO_ADDR_OFFSET;
573 reg_fifo_addr = ACP_BT_RX_FIFOADDR(adata);
574 reg_fifo_size = ACP_BT_RX_FIFOSIZE(adata);
575
576 if (chip->acp_rev >= ACP70_PCI_ID)
577 phy_addr = ACP7x_I2S_BT_RX_MEM_WINDOW_START;
578 else
579 phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
580 writel(phy_addr, adata->acp_base + ACP_BT_RX_RINGBUFADDR(adata));
581 }
582 break;
583 case I2S_HS_INSTANCE:
584 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
585 reg_dma_size = ACP_HS_TX_DMA_SIZE;
586 acp_fifo_addr = rsrc->sram_pte_offset +
587 HS_PB_FIFO_ADDR_OFFSET;
588 reg_fifo_addr = ACP_HS_TX_FIFOADDR;
589 reg_fifo_size = ACP_HS_TX_FIFOSIZE;
590
591 if (chip->acp_rev >= ACP70_PCI_ID)
592 phy_addr = ACP7x_I2S_HS_TX_MEM_WINDOW_START;
593 else
594 phy_addr = I2S_HS_TX_MEM_WINDOW_START + stream->reg_offset;
595 writel(phy_addr, adata->acp_base + ACP_HS_TX_RINGBUFADDR);
596 } else {
597 reg_dma_size = ACP_HS_RX_DMA_SIZE;
598 acp_fifo_addr = rsrc->sram_pte_offset +
599 HS_CAPT_FIFO_ADDR_OFFSET;
600 reg_fifo_addr = ACP_HS_RX_FIFOADDR;
601 reg_fifo_size = ACP_HS_RX_FIFOSIZE;
602
603 if (chip->acp_rev >= ACP70_PCI_ID)
604 phy_addr = ACP7x_I2S_HS_RX_MEM_WINDOW_START;
605 else
606 phy_addr = I2S_HS_RX_MEM_WINDOW_START + stream->reg_offset;
607 writel(phy_addr, adata->acp_base + ACP_HS_RX_RINGBUFADDR);
608 }
609 break;
610 default:
611 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
612 return -EINVAL;
613 }
614
615 writel(DMA_SIZE, adata->acp_base + reg_dma_size);
616 writel(acp_fifo_addr, adata->acp_base + reg_fifo_addr);
617 writel(FIFO_SIZE, adata->acp_base + reg_fifo_size);
618
619 ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
620 ext_int_ctrl |= BIT(I2S_RX_THRESHOLD(rsrc->offset)) |
621 BIT(BT_RX_THRESHOLD(rsrc->offset)) |
622 BIT(I2S_TX_THRESHOLD(rsrc->offset)) |
623 BIT(BT_TX_THRESHOLD(rsrc->offset)) |
624 BIT(HS_RX_THRESHOLD(rsrc->offset)) |
625 BIT(HS_TX_THRESHOLD(rsrc->offset));
626
627 writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
628
629 return 0;
630 }
631
acp_i2s_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)632 static int acp_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
633 {
634 struct acp_stream *stream = substream->runtime->private_data;
635 struct device *dev = dai->component->dev;
636 struct acp_dev_data *adata = dev_get_drvdata(dev);
637 struct acp_resource *rsrc = adata->rsrc;
638 unsigned int dir = substream->stream;
639 unsigned int irq_bit = 0;
640
641 switch (dai->driver->id) {
642 case I2S_SP_INSTANCE:
643 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
644 irq_bit = BIT(I2S_TX_THRESHOLD(rsrc->offset));
645 stream->pte_offset = ACP_SRAM_SP_PB_PTE_OFFSET;
646 stream->fifo_offset = SP_PB_FIFO_ADDR_OFFSET;
647 } else {
648 irq_bit = BIT(I2S_RX_THRESHOLD(rsrc->offset));
649 stream->pte_offset = ACP_SRAM_SP_CP_PTE_OFFSET;
650 stream->fifo_offset = SP_CAPT_FIFO_ADDR_OFFSET;
651 }
652 break;
653 case I2S_BT_INSTANCE:
654 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
655 irq_bit = BIT(BT_TX_THRESHOLD(rsrc->offset));
656 stream->pte_offset = ACP_SRAM_BT_PB_PTE_OFFSET;
657 stream->fifo_offset = BT_PB_FIFO_ADDR_OFFSET;
658 } else {
659 irq_bit = BIT(BT_RX_THRESHOLD(rsrc->offset));
660 stream->pte_offset = ACP_SRAM_BT_CP_PTE_OFFSET;
661 stream->fifo_offset = BT_CAPT_FIFO_ADDR_OFFSET;
662 }
663 break;
664 case I2S_HS_INSTANCE:
665 if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
666 irq_bit = BIT(HS_TX_THRESHOLD(rsrc->offset));
667 stream->pte_offset = ACP_SRAM_HS_PB_PTE_OFFSET;
668 stream->fifo_offset = HS_PB_FIFO_ADDR_OFFSET;
669 } else {
670 irq_bit = BIT(HS_RX_THRESHOLD(rsrc->offset));
671 stream->pte_offset = ACP_SRAM_HS_CP_PTE_OFFSET;
672 stream->fifo_offset = HS_CAPT_FIFO_ADDR_OFFSET;
673 }
674 break;
675 default:
676 dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
677 return -EINVAL;
678 }
679
680 /* Save runtime dai configuration in stream */
681 stream->id = dai->driver->id + dir;
682 stream->dai_id = dai->driver->id;
683 stream->irq_bit = irq_bit;
684 stream->dir = substream->stream;
685
686 return 0;
687 }
688
689 const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops = {
690 .startup = acp_i2s_startup,
691 .hw_params = acp_i2s_hwparams,
692 .prepare = acp_i2s_prepare,
693 .trigger = acp_i2s_trigger,
694 .set_fmt = acp_i2s_set_fmt,
695 .set_tdm_slot = acp_i2s_set_tdm_slot,
696 };
697 EXPORT_SYMBOL_NS_GPL(asoc_acp_cpu_dai_ops, "SND_SOC_ACP_COMMON");
698
699 MODULE_DESCRIPTION("AMD ACP Audio I2S controller");
700 MODULE_LICENSE("Dual BSD/GPL");
701 MODULE_ALIAS(DRV_NAME);
702