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[linux-2.6-block.git] / sound / soc / intel / sst-haswell-ipc.c
CommitLineData
a4b12990
MB		 1/*
2 * Intel SST Haswell/Broadwell IPC Support
3 *
4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17#include <linux/types.h>
18#include <linux/kernel.h>
19#include <linux/list.h>
20#include <linux/device.h>
21#include <linux/wait.h>
22#include <linux/spinlock.h>
23#include <linux/workqueue.h>
24#include <linux/export.h>
25#include <linux/slab.h>
26#include <linux/delay.h>
27#include <linux/sched.h>
28#include <linux/list.h>
29#include <linux/platform_device.h>
30#include <linux/kthread.h>
31#include <linux/firmware.h>
32#include <linux/dma-mapping.h>
33#include <linux/debugfs.h>
34
35#include "sst-haswell-ipc.h"
36#include "sst-dsp.h"
37#include "sst-dsp-priv.h"
38
39/* Global Message - Generic */
40#define IPC_GLB_TYPE_SHIFT 24
41#define IPC_GLB_TYPE_MASK (0x1f << IPC_GLB_TYPE_SHIFT)
42#define IPC_GLB_TYPE(x) (x << IPC_GLB_TYPE_SHIFT)
43
44/* Global Message - Reply */
45#define IPC_GLB_REPLY_SHIFT 0
46#define IPC_GLB_REPLY_MASK (0x1f << IPC_GLB_REPLY_SHIFT)
47#define IPC_GLB_REPLY_TYPE(x) (x << IPC_GLB_REPLY_TYPE_SHIFT)
48
49/* Stream Message - Generic */
50#define IPC_STR_TYPE_SHIFT 20
51#define IPC_STR_TYPE_MASK (0xf << IPC_STR_TYPE_SHIFT)
52#define IPC_STR_TYPE(x) (x << IPC_STR_TYPE_SHIFT)
53#define IPC_STR_ID_SHIFT 16
54#define IPC_STR_ID_MASK (0xf << IPC_STR_ID_SHIFT)
55#define IPC_STR_ID(x) (x << IPC_STR_ID_SHIFT)
56
57/* Stream Message - Reply */
58#define IPC_STR_REPLY_SHIFT 0
59#define IPC_STR_REPLY_MASK (0x1f << IPC_STR_REPLY_SHIFT)
60
61/* Stream Stage Message - Generic */
62#define IPC_STG_TYPE_SHIFT 12
63#define IPC_STG_TYPE_MASK (0xf << IPC_STG_TYPE_SHIFT)
64#define IPC_STG_TYPE(x) (x << IPC_STG_TYPE_SHIFT)
65#define IPC_STG_ID_SHIFT 10
66#define IPC_STG_ID_MASK (0x3 << IPC_STG_ID_SHIFT)
67#define IPC_STG_ID(x) (x << IPC_STG_ID_SHIFT)
68
69/* Stream Stage Message - Reply */
70#define IPC_STG_REPLY_SHIFT 0
71#define IPC_STG_REPLY_MASK (0x1f << IPC_STG_REPLY_SHIFT)
72
73/* Debug Log Message - Generic */
74#define IPC_LOG_OP_SHIFT 20
75#define IPC_LOG_OP_MASK (0xf << IPC_LOG_OP_SHIFT)
76#define IPC_LOG_OP_TYPE(x) (x << IPC_LOG_OP_SHIFT)
77#define IPC_LOG_ID_SHIFT 16
78#define IPC_LOG_ID_MASK (0xf << IPC_LOG_ID_SHIFT)
79#define IPC_LOG_ID(x) (x << IPC_LOG_ID_SHIFT)
80
81/* IPC message timeout (msecs) */
82#define IPC_TIMEOUT_MSECS 300
83#define IPC_BOOT_MSECS 200
84#define IPC_MSG_WAIT 0
85#define IPC_MSG_NOWAIT 1
86
87/* Firmware Ready Message */
88#define IPC_FW_READY (0x1 << 29)
89#define IPC_STATUS_MASK (0x3 << 30)
90
91#define IPC_EMPTY_LIST_SIZE 8
92#define IPC_MAX_STREAMS 4
93
94/* Mailbox */
95#define IPC_MAX_MAILBOX_BYTES 256
96
97/* Global Message - Types and Replies */
98enum ipc_glb_type {
99 IPC_GLB_GET_FW_VERSION = 0, /* Retrieves firmware version */
100 IPC_GLB_PERFORMANCE_MONITOR = 1, /* Performance monitoring actions */
101 IPC_GLB_ALLOCATE_STREAM = 3, /* Request to allocate new stream */
102 IPC_GLB_FREE_STREAM = 4, /* Request to free stream */
103 IPC_GLB_GET_FW_CAPABILITIES = 5, /* Retrieves firmware capabilities */
104 IPC_GLB_STREAM_MESSAGE = 6, /* Message directed to stream or its stages */
105 /* Request to store firmware context during D0->D3 transition */
106 IPC_GLB_REQUEST_DUMP = 7,
107 /* Request to restore firmware context during D3->D0 transition */
108 IPC_GLB_RESTORE_CONTEXT = 8,
109 IPC_GLB_GET_DEVICE_FORMATS = 9, /* Set device format */
110 IPC_GLB_SET_DEVICE_FORMATS = 10, /* Get device format */
111 IPC_GLB_SHORT_REPLY = 11,
112 IPC_GLB_ENTER_DX_STATE = 12,
113 IPC_GLB_GET_MIXER_STREAM_INFO = 13, /* Request mixer stream params */
114 IPC_GLB_DEBUG_LOG_MESSAGE = 14, /* Message to or from the debug logger. */
115 IPC_GLB_REQUEST_TRANSFER = 16, /* < Request Transfer for host */
116 IPC_GLB_MAX_IPC_MESSAGE_TYPE = 17, /* Maximum message number */
117};
118
119enum ipc_glb_reply {
120 IPC_GLB_REPLY_SUCCESS = 0, /* The operation was successful. */
121 IPC_GLB_REPLY_ERROR_INVALID_PARAM = 1, /* Invalid parameter was passed. */
122 IPC_GLB_REPLY_UNKNOWN_MESSAGE_TYPE = 2, /* Uknown message type was resceived. */
123 IPC_GLB_REPLY_OUT_OF_RESOURCES = 3, /* No resources to satisfy the request. */
124 IPC_GLB_REPLY_BUSY = 4, /* The system or resource is busy. */
125 IPC_GLB_REPLY_PENDING = 5, /* The action was scheduled for processing. */
126 IPC_GLB_REPLY_FAILURE = 6, /* Critical error happened. */
127 IPC_GLB_REPLY_INVALID_REQUEST = 7, /* Request can not be completed. */
128 IPC_GLB_REPLY_STAGE_UNINITIALIZED = 8, /* Processing stage was uninitialized. */
129 IPC_GLB_REPLY_NOT_FOUND = 9, /* Required resource can not be found. */
130 IPC_GLB_REPLY_SOURCE_NOT_STARTED = 10, /* Source was not started. */
131};
132
133/* Stream Message - Types */
134enum ipc_str_operation {
135 IPC_STR_RESET = 0,
136 IPC_STR_PAUSE = 1,
137 IPC_STR_RESUME = 2,
138 IPC_STR_STAGE_MESSAGE = 3,
139 IPC_STR_NOTIFICATION = 4,
140 IPC_STR_MAX_MESSAGE
141};
142
143/* Stream Stage Message Types */
144enum ipc_stg_operation {
145 IPC_STG_GET_VOLUME = 0,
146 IPC_STG_SET_VOLUME,
147 IPC_STG_SET_WRITE_POSITION,
148 IPC_STG_SET_FX_ENABLE,
149 IPC_STG_SET_FX_DISABLE,
150 IPC_STG_SET_FX_GET_PARAM,
151 IPC_STG_SET_FX_SET_PARAM,
152 IPC_STG_SET_FX_GET_INFO,
153 IPC_STG_MUTE_LOOPBACK,
154 IPC_STG_MAX_MESSAGE
155};
156
157/* Stream Stage Message Types For Notification*/
158enum ipc_stg_operation_notify {
159 IPC_POSITION_CHANGED = 0,
160 IPC_STG_GLITCH,
161 IPC_STG_MAX_NOTIFY
162};
163
164enum ipc_glitch_type {
165 IPC_GLITCH_UNDERRUN = 1,
166 IPC_GLITCH_DECODER_ERROR,
167 IPC_GLITCH_DOUBLED_WRITE_POS,
168 IPC_GLITCH_MAX
169};
170
171/* Debug Control */
172enum ipc_debug_operation {
173 IPC_DEBUG_ENABLE_LOG = 0,
174 IPC_DEBUG_DISABLE_LOG = 1,
175 IPC_DEBUG_REQUEST_LOG_DUMP = 2,
176 IPC_DEBUG_NOTIFY_LOG_DUMP = 3,
177 IPC_DEBUG_MAX_DEBUG_LOG
178};
179
180/* Firmware Ready */
181struct sst_hsw_ipc_fw_ready {
182 u32 inbox_offset;
183 u32 outbox_offset;
184 u32 inbox_size;
185 u32 outbox_size;
186 u32 fw_info_size;
187 u8 fw_info[1];
188} __attribute__((packed));
189
190struct ipc_message {
191 struct list_head list;
192 u32 header;
193
194 /* direction wrt host CPU */
195 char tx_data[IPC_MAX_MAILBOX_BYTES];
196 size_t tx_size;
197 char rx_data[IPC_MAX_MAILBOX_BYTES];
198 size_t rx_size;
199
200 wait_queue_head_t waitq;
201 bool pending;
202 bool complete;
203 bool wait;
204 int errno;
205};
206
207struct sst_hsw_stream;
208struct sst_hsw;
209
210/* Stream infomation */
211struct sst_hsw_stream {
212 /* configuration */
213 struct sst_hsw_ipc_stream_alloc_req request;
214 struct sst_hsw_ipc_stream_alloc_reply reply;
215 struct sst_hsw_ipc_stream_free_req free_req;
216
217 /* Mixer info */
218 u32 mute_volume[SST_HSW_NO_CHANNELS];
219 u32 mute[SST_HSW_NO_CHANNELS];
220
221 /* runtime info */
222 struct sst_hsw *hsw;
223 int host_id;
224 bool commited;
225 bool running;
226
227 /* Notification work */
228 struct work_struct notify_work;
229 u32 header;
230
231 /* Position info from DSP */
232 struct sst_hsw_ipc_stream_set_position wpos;
233 struct sst_hsw_ipc_stream_get_position rpos;
234 struct sst_hsw_ipc_stream_glitch_position glitch;
235
236 /* Volume info */
237 struct sst_hsw_ipc_volume_req vol_req;
238
239 /* driver callback */
240 u32 (*notify_position)(struct sst_hsw_stream *stream, void *data);
241 void *pdata;
242
243 struct list_head node;
244};
245
246/* FW log ring information */
247struct sst_hsw_log_stream {
248 dma_addr_t dma_addr;
249 unsigned char *dma_area;
250 unsigned char *ring_descr;
251 int pages;
252 int size;
253
254 /* Notification work */
255 struct work_struct notify_work;
256 wait_queue_head_t readers_wait_q;
257 struct mutex rw_mutex;
258
259 u32 last_pos;
260 u32 curr_pos;
261 u32 reader_pos;
262
263 /* fw log config */
264 u32 config[SST_HSW_FW_LOG_CONFIG_DWORDS];
265
266 struct sst_hsw *hsw;
267};
268
269/* SST Haswell IPC data */
270struct sst_hsw {
271 struct device *dev;
272 struct sst_dsp *dsp;
273 struct platform_device *pdev_pcm;
274
275 /* FW config */
276 struct sst_hsw_ipc_fw_ready fw_ready;
277 struct sst_hsw_ipc_fw_version version;
278 struct sst_module *scratch;
279 bool fw_done;
280
281 /* stream */
282 struct list_head stream_list;
283
284 /* global mixer */
285 struct sst_hsw_ipc_stream_info_reply mixer_info;
286 enum sst_hsw_volume_curve curve_type;
287 u32 curve_duration;
288 u32 mute[SST_HSW_NO_CHANNELS];
289 u32 mute_volume[SST_HSW_NO_CHANNELS];
290
291 /* DX */
292 struct sst_hsw_ipc_dx_reply dx;
293
294 /* boot */
295 wait_queue_head_t boot_wait;
296 bool boot_complete;
297 bool shutdown;
298
299 /* IPC messaging */
300 struct list_head tx_list;
301 struct list_head rx_list;
302 struct list_head empty_list;
303 wait_queue_head_t wait_txq;
304 struct task_struct *tx_thread;
305 struct kthread_worker kworker;
306 struct kthread_work kwork;
307 bool pending;
308 struct ipc_message *msg;
309
310 /* FW log stream */
311 struct sst_hsw_log_stream log_stream;
312};
313
314#define CREATE_TRACE_POINTS
315#include <trace/events/hswadsp.h>
316
317static inline u32 msg_get_global_type(u32 msg)
318{
319 return (msg & IPC_GLB_TYPE_MASK) >> IPC_GLB_TYPE_SHIFT;
320}
321
322static inline u32 msg_get_global_reply(u32 msg)
323{
324 return (msg & IPC_GLB_REPLY_MASK) >> IPC_GLB_REPLY_SHIFT;
325}
326
327static inline u32 msg_get_stream_type(u32 msg)
328{
329 return (msg & IPC_STR_TYPE_MASK) >> IPC_STR_TYPE_SHIFT;
330}
331
332static inline u32 msg_get_stage_type(u32 msg)
333{
334 return (msg & IPC_STG_TYPE_MASK) >> IPC_STG_TYPE_SHIFT;
335}
336
337static inline u32 msg_set_stage_type(u32 msg, u32 type)
338{
339 return (msg & ~IPC_STG_TYPE_MASK) +
340 (type << IPC_STG_TYPE_SHIFT);
341}
342
343static inline u32 msg_get_stream_id(u32 msg)
344{
345 return (msg & IPC_STR_ID_MASK) >> IPC_STR_ID_SHIFT;
346}
347
348static inline u32 msg_get_notify_reason(u32 msg)
349{
350 return (msg & IPC_STG_TYPE_MASK) >> IPC_STG_TYPE_SHIFT;
351}
352
353u32 create_channel_map(enum sst_hsw_channel_config config)
354{
355 switch (config) {
356 case SST_HSW_CHANNEL_CONFIG_MONO:
357 return (0xFFFFFFF0 | SST_HSW_CHANNEL_CENTER);
358 case SST_HSW_CHANNEL_CONFIG_STEREO:
359 return (0xFFFFFF00 | SST_HSW_CHANNEL_LEFT
360 | (SST_HSW_CHANNEL_RIGHT << 4));
361 case SST_HSW_CHANNEL_CONFIG_2_POINT_1:
362 return (0xFFFFF000 | SST_HSW_CHANNEL_LEFT
363 | (SST_HSW_CHANNEL_RIGHT << 4)
364 | (SST_HSW_CHANNEL_LFE << 8 ));
365 case SST_HSW_CHANNEL_CONFIG_3_POINT_0:
366 return (0xFFFFF000 | SST_HSW_CHANNEL_LEFT
367 | (SST_HSW_CHANNEL_CENTER << 4)
368 | (SST_HSW_CHANNEL_RIGHT << 8));
369 case SST_HSW_CHANNEL_CONFIG_3_POINT_1:
370 return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
371 | (SST_HSW_CHANNEL_CENTER << 4)
372 | (SST_HSW_CHANNEL_RIGHT << 8)
373 | (SST_HSW_CHANNEL_LFE << 12));
374 case SST_HSW_CHANNEL_CONFIG_QUATRO:
375 return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
376 | (SST_HSW_CHANNEL_RIGHT << 4)
377 | (SST_HSW_CHANNEL_LEFT_SURROUND << 8)
378 | (SST_HSW_CHANNEL_RIGHT_SURROUND << 12));
379 case SST_HSW_CHANNEL_CONFIG_4_POINT_0:
380 return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
381 | (SST_HSW_CHANNEL_CENTER << 4)
382 | (SST_HSW_CHANNEL_RIGHT << 8)
383 | (SST_HSW_CHANNEL_CENTER_SURROUND << 12));
384 case SST_HSW_CHANNEL_CONFIG_5_POINT_0:
385 return (0xFFF00000 | SST_HSW_CHANNEL_LEFT
386 | (SST_HSW_CHANNEL_CENTER << 4)
387 | (SST_HSW_CHANNEL_RIGHT << 8)
388 | (SST_HSW_CHANNEL_LEFT_SURROUND << 12)
389 | (SST_HSW_CHANNEL_RIGHT_SURROUND << 16));
390 case SST_HSW_CHANNEL_CONFIG_5_POINT_1:
391 return (0xFF000000 | SST_HSW_CHANNEL_CENTER
392 | (SST_HSW_CHANNEL_LEFT << 4)
393 | (SST_HSW_CHANNEL_RIGHT << 8)
394 | (SST_HSW_CHANNEL_LEFT_SURROUND << 12)
395 | (SST_HSW_CHANNEL_RIGHT_SURROUND << 16)
396 | (SST_HSW_CHANNEL_LFE << 20));
397 case SST_HSW_CHANNEL_CONFIG_DUAL_MONO:
398 return (0xFFFFFF00 | SST_HSW_CHANNEL_LEFT
399 | (SST_HSW_CHANNEL_LEFT << 4));
400 default:
401 return 0xFFFFFFFF;
402 }
403}
404
405static struct sst_hsw_stream *get_stream_by_id(struct sst_hsw *hsw,
406 int stream_id)
407{
408 struct sst_hsw_stream *stream;
409
410 list_for_each_entry(stream, &hsw->stream_list, node) {
411 if (stream->reply.stream_hw_id == stream_id)
412 return stream;
413 }
414
415 return NULL;
416}
417
418static void ipc_shim_dbg(struct sst_hsw *hsw, const char *text)
419{
420 struct sst_dsp *sst = hsw->dsp;
421 u32 isr, ipcd, imrx, ipcx;
422
423 ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);
424 isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
425 ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
426 imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);
427
428 dev_err(hsw->dev, "ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",
429 text, ipcx, isr, ipcd, imrx);
430}
431
432/* locks held by caller */
433static struct ipc_message *msg_get_empty(struct sst_hsw *hsw)
434{
435 struct ipc_message *msg = NULL;
436
437 if (!list_empty(&hsw->empty_list)) {
438 msg = list_first_entry(&hsw->empty_list, struct ipc_message,
439 list);
440 list_del(&msg->list);
441 }
442
443 return msg;
444}
445
446static void ipc_tx_msgs(struct kthread_work *work)
447{
448 struct sst_hsw *hsw =
449 container_of(work, struct sst_hsw, kwork);
450 struct ipc_message *msg;
451 unsigned long flags;
452 u32 ipcx;
453
454 spin_lock_irqsave(&hsw->dsp->spinlock, flags);
455
456 if (list_empty(&hsw->tx_list) || hsw->pending) {
457 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
458 return;
459 }
460
461 /* if the DSP is busy we will TX messages after IRQ */
462 ipcx = sst_dsp_shim_read_unlocked(hsw->dsp, SST_IPCX);
463 if (ipcx & SST_IPCX_BUSY) {
464 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
465 return;
466 }
467
468 msg = list_first_entry(&hsw->tx_list, struct ipc_message, list);
469
470 list_move(&msg->list, &hsw->rx_list);
471
472 /* send the message */
473 sst_dsp_outbox_write(hsw->dsp, msg->tx_data, msg->tx_size);
474 sst_dsp_ipc_msg_tx(hsw->dsp, msg->header | SST_IPCX_BUSY);
475
476 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
477}
478
479/* locks held by caller */
480static void tx_msg_reply_complete(struct sst_hsw *hsw, struct ipc_message *msg)
481{
482 msg->complete = true;
483 trace_ipc_reply("completed", msg->header);
484
485 if (!msg->wait)
486 list_add_tail(&msg->list, &hsw->empty_list);
487 else
488 wake_up(&msg->waitq);
489}
490
491static int tx_wait_done(struct sst_hsw *hsw, struct ipc_message *msg,
492 void *rx_data)
493{
494 unsigned long flags;
495 int ret;
496
497 /* wait for DSP completion (in all cases atm inc pending) */
498 ret = wait_event_timeout(msg->waitq, msg->complete,
499 msecs_to_jiffies(IPC_TIMEOUT_MSECS));
500
501 spin_lock_irqsave(&hsw->dsp->spinlock, flags);
502 if (ret == 0) {
503 ipc_shim_dbg(hsw, "message timeout");
504
505 trace_ipc_error("error message timeout for", msg->header);
506 ret = -ETIMEDOUT;
507 } else {
508
509 /* copy the data returned from DSP */
510 if (msg->rx_size)
511 memcpy(rx_data, msg->rx_data, msg->rx_size);
512 ret = msg->errno;
513 }
514
515 list_add_tail(&msg->list, &hsw->empty_list);
516 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
517 return ret;
518}
519
520static int ipc_tx_message(struct sst_hsw *hsw, u32 header, void *tx_data,
521 size_t tx_bytes, void *rx_data, size_t rx_bytes, int wait)
522{
523 struct ipc_message *msg;
524 unsigned long flags;
525
526 spin_lock_irqsave(&hsw->dsp->spinlock, flags);
527
528 msg = msg_get_empty(hsw);
529 if (msg == NULL) {
530 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
531 return -EBUSY;
532 }
533
534 if (tx_bytes)
535 memcpy(msg->tx_data, tx_data, tx_bytes);
536
537 msg->header = header;
538 msg->tx_size = tx_bytes;
539 msg->rx_size = rx_bytes;
540 msg->wait = wait;
541 msg->errno = 0;
542 msg->pending = false;
543 msg->complete = false;
544
545 list_add_tail(&msg->list, &hsw->tx_list);
546 spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
547
548 queue_kthread_work(&hsw->kworker, &hsw->kwork);
549
550 if (wait)
551 return tx_wait_done(hsw, msg, rx_data);
552 else
553 return 0;
554}
555
556static inline int ipc_tx_message_wait(struct sst_hsw *hsw, u32 header,
557 void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes)
558{
559 return ipc_tx_message(hsw, header, tx_data, tx_bytes, rx_data,
560 rx_bytes, 1);
561}
562
563static inline int ipc_tx_message_nowait(struct sst_hsw *hsw, u32 header,
564 void *tx_data, size_t tx_bytes)
565{
566 return ipc_tx_message(hsw, header, tx_data, tx_bytes, NULL, 0, 0);
567}
568
569static void hsw_fw_ready(struct sst_hsw *hsw, u32 header)
570{
571 struct sst_hsw_ipc_fw_ready fw_ready;
572 u32 offset;
573
574 offset = (header & 0x1FFFFFFF) << 3;
575
576 dev_dbg(hsw->dev, "ipc: DSP is ready 0x%8.8x offset %d\n",
577 header, offset);
578
579 /* copy data from the DSP FW ready offset */
580 sst_dsp_read(hsw->dsp, &fw_ready, offset, sizeof(fw_ready));
581
582 sst_dsp_mailbox_init(hsw->dsp, fw_ready.inbox_offset,
583 fw_ready.inbox_size, fw_ready.outbox_offset,
584 fw_ready.outbox_size);
585
586 hsw->boot_complete = true;
587 wake_up(&hsw->boot_wait);
588
589 dev_dbg(hsw->dev, " mailbox upstream 0x%x - size 0x%x\n",
590 fw_ready.inbox_offset, fw_ready.inbox_size);
591 dev_dbg(hsw->dev, " mailbox downstream 0x%x - size 0x%x\n",
592 fw_ready.outbox_offset, fw_ready.outbox_size);
593}
594
595static void hsw_notification_work(struct work_struct *work)
596{
597 struct sst_hsw_stream *stream = container_of(work,
598 struct sst_hsw_stream, notify_work);
599 struct sst_hsw_ipc_stream_glitch_position *glitch = &stream->glitch;
600 struct sst_hsw_ipc_stream_get_position *pos = &stream->rpos;
601 struct sst_hsw *hsw = stream->hsw;
602 u32 reason;
603
604 reason = msg_get_notify_reason(stream->header);
605
606 switch (reason) {
607 case IPC_STG_GLITCH:
608 trace_ipc_notification("DSP stream under/overrun",
609 stream->reply.stream_hw_id);
610 sst_dsp_inbox_read(hsw->dsp, glitch, sizeof(*glitch));
611
612 dev_err(hsw->dev, "glitch %d pos 0x%x write pos 0x%x\n",
613 glitch->glitch_type, glitch->present_pos,
614 glitch->write_pos);
615 break;
616
617 case IPC_POSITION_CHANGED:
618 trace_ipc_notification("DSP stream position changed for",
619 stream->reply.stream_hw_id);
620 sst_dsp_inbox_read(hsw->dsp, pos, sizeof(pos));
621
622 if (stream->notify_position)
623 stream->notify_position(stream, stream->pdata);
624
625 break;
626 default:
627 dev_err(hsw->dev, "error: unknown notification 0x%x\n",
628 stream->header);
629 break;
630 }
631
632 /* tell DSP that notification has been handled */
633 sst_dsp_shim_update_bits_unlocked(hsw->dsp, SST_IPCD,
634 SST_IPCD_BUSY | SST_IPCD_DONE, SST_IPCD_DONE);
635
636 /* unmask busy interrupt */
637 sst_dsp_shim_update_bits_unlocked(hsw->dsp, SST_IMRX, SST_IMRX_BUSY, 0);
638}
639
640static struct ipc_message *reply_find_msg(struct sst_hsw *hsw, u32 header)
641{
642 struct ipc_message *msg;
643
644 /* clear reply bits & status bits */
645 header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
646
647 if (list_empty(&hsw->rx_list)) {
648 dev_err(hsw->dev, "error: rx list empty but received 0x%x\n",
649 header);
650 return NULL;
651 }
652
653 list_for_each_entry(msg, &hsw->rx_list, list) {
654 if (msg->header == header)
655 return msg;
656 }
657
658 return NULL;
659}
660
661static void hsw_stream_update(struct sst_hsw *hsw, struct ipc_message *msg)
662{
663 struct sst_hsw_stream *stream;
664 u32 header = msg->header & ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
665 u32 stream_id = msg_get_stream_id(header);
666 u32 stream_msg = msg_get_stream_type(header);
667
668 stream = get_stream_by_id(hsw, stream_id);
669 if (stream == NULL)
670 return;
671
672 switch (stream_msg) {
673 case IPC_STR_STAGE_MESSAGE:
674 case IPC_STR_NOTIFICATION:
675 case IPC_STR_RESET:
676 break;
677 case IPC_STR_PAUSE:
678 stream->running = false;
679 trace_ipc_notification("stream paused",
680 stream->reply.stream_hw_id);
681 break;
682 case IPC_STR_RESUME:
683 stream->running = true;
684 trace_ipc_notification("stream running",
685 stream->reply.stream_hw_id);
686 break;
687 }
688}
689
690static int hsw_process_reply(struct sst_hsw *hsw, u32 header)
691{
692 struct ipc_message *msg;
693 u32 reply = msg_get_global_reply(header);
694
695 trace_ipc_reply("processing -->", header);
696
697 msg = reply_find_msg(hsw, header);
698 if (msg == NULL) {
699 trace_ipc_error("error: can't find message header", header);
700 return -EIO;
701 }
702
703 /* first process the header */
704 switch (reply) {
705 case IPC_GLB_REPLY_PENDING:
706 trace_ipc_pending_reply("received", header);
707 msg->pending = true;
708 hsw->pending = true;
709 return 1;
710 case IPC_GLB_REPLY_SUCCESS:
711 if (msg->pending) {
712 trace_ipc_pending_reply("completed", header);
713 sst_dsp_inbox_read(hsw->dsp, msg->rx_data,
714 msg->rx_size);
715 hsw->pending = false;
716 } else {
717 /* copy data from the DSP */
718 sst_dsp_outbox_read(hsw->dsp, msg->rx_data,
719 msg->rx_size);
720 }
721 break;
722 /* these will be rare - but useful for debug */
723 case IPC_GLB_REPLY_UNKNOWN_MESSAGE_TYPE:
724 trace_ipc_error("error: unknown message type", header);
725 msg->errno = -EBADMSG;
726 break;
727 case IPC_GLB_REPLY_OUT_OF_RESOURCES:
728 trace_ipc_error("error: out of resources", header);
729 msg->errno = -ENOMEM;
730 break;
731 case IPC_GLB_REPLY_BUSY:
732 trace_ipc_error("error: reply busy", header);
733 msg->errno = -EBUSY;
734 break;
735 case IPC_GLB_REPLY_FAILURE:
736 trace_ipc_error("error: reply failure", header);
737 msg->errno = -EINVAL;
738 break;
739 case IPC_GLB_REPLY_STAGE_UNINITIALIZED:
740 trace_ipc_error("error: stage uninitialized", header);
741 msg->errno = -EINVAL;
742 break;
743 case IPC_GLB_REPLY_NOT_FOUND:
744 trace_ipc_error("error: reply not found", header);
745 msg->errno = -EINVAL;
746 break;
747 case IPC_GLB_REPLY_SOURCE_NOT_STARTED:
748 trace_ipc_error("error: source not started", header);
749 msg->errno = -EINVAL;
750 break;
751 case IPC_GLB_REPLY_INVALID_REQUEST:
752 trace_ipc_error("error: invalid request", header);
753 msg->errno = -EINVAL;
754 break;
755 case IPC_GLB_REPLY_ERROR_INVALID_PARAM:
756 trace_ipc_error("error: invalid parameter", header);
757 msg->errno = -EINVAL;
758 break;
759 default:
760 trace_ipc_error("error: unknown reply", header);
761 msg->errno = -EINVAL;
762 break;
763 }
764
765 /* update any stream states */
766 hsw_stream_update(hsw, msg);
767
768 /* wake up and return the error if we have waiters on this message ? */
769 list_del(&msg->list);
770 tx_msg_reply_complete(hsw, msg);
771
772 return 1;
773}
774
775static int hsw_stream_message(struct sst_hsw *hsw, u32 header)
776{
777 u32 stream_msg, stream_id, stage_type;
778 struct sst_hsw_stream *stream;
779 int handled = 0;
780
781 stream_msg = msg_get_stream_type(header);
782 stream_id = msg_get_stream_id(header);
783 stage_type = msg_get_stage_type(header);
784
785 stream = get_stream_by_id(hsw, stream_id);
786 if (stream == NULL)
787 return handled;
788
789 stream->header = header;
790
791 switch (stream_msg) {
792 case IPC_STR_STAGE_MESSAGE:
793 dev_err(hsw->dev, "error: stage msg not implemented 0x%8.8x\n",
794 header);
795 break;
796 case IPC_STR_NOTIFICATION:
797 schedule_work(&stream->notify_work);
798 break;
799 default:
800 /* handle pending message complete request */
801 handled = hsw_process_reply(hsw, header);
802 break;
803 }
804
805 return handled;
806}
807
808static int hsw_log_message(struct sst_hsw *hsw, u32 header)
809{
810 u32 operation = (header & IPC_LOG_OP_MASK) >> IPC_LOG_OP_SHIFT;
811 struct sst_hsw_log_stream *stream = &hsw->log_stream;
812 int ret = 1;
813
814 if (operation != IPC_DEBUG_REQUEST_LOG_DUMP) {
815 dev_err(hsw->dev,
816 "error: log msg not implemented 0x%8.8x\n", header);
817 return 0;
818 }
819
820 mutex_lock(&stream->rw_mutex);
821 stream->last_pos = stream->curr_pos;
822 sst_dsp_inbox_read(
823 hsw->dsp, &stream->curr_pos, sizeof(stream->curr_pos));
824 mutex_unlock(&stream->rw_mutex);
825
826 schedule_work(&stream->notify_work);
827
828 return ret;
829}
830
831static int hsw_process_notification(struct sst_hsw *hsw)
832{
833 struct sst_dsp *sst = hsw->dsp;
834 u32 type, header;
835 int handled = 1;
836
837 header = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
838 type = msg_get_global_type(header);
839
840 trace_ipc_request("processing -->", header);
841
842 /* FW Ready is a special case */
843 if (!hsw->boot_complete && header & IPC_FW_READY) {
844 hsw_fw_ready(hsw, header);
845 return handled;
846 }
847
848 switch (type) {
849 case IPC_GLB_GET_FW_VERSION:
850 case IPC_GLB_ALLOCATE_STREAM:
851 case IPC_GLB_FREE_STREAM:
852 case IPC_GLB_GET_FW_CAPABILITIES:
853 case IPC_GLB_REQUEST_DUMP:
854 case IPC_GLB_GET_DEVICE_FORMATS:
855 case IPC_GLB_SET_DEVICE_FORMATS:
856 case IPC_GLB_ENTER_DX_STATE:
857 case IPC_GLB_GET_MIXER_STREAM_INFO:
858 case IPC_GLB_MAX_IPC_MESSAGE_TYPE:
859 case IPC_GLB_RESTORE_CONTEXT:
860 case IPC_GLB_SHORT_REPLY:
861 dev_err(hsw->dev, "error: message type %d header 0x%x\n",
862 type, header);
863 break;
864 case IPC_GLB_STREAM_MESSAGE:
865 handled = hsw_stream_message(hsw, header);
866 break;
867 case IPC_GLB_DEBUG_LOG_MESSAGE:
868 handled = hsw_log_message(hsw, header);
869 break;
870 default:
871 dev_err(hsw->dev, "error: unexpected type %d hdr 0x%8.8x\n",
872 type, header);
873 break;
874 }
875
876 return handled;
877}
878
879static irqreturn_t hsw_irq_thread(int irq, void *context)
880{
881 struct sst_dsp *sst = (struct sst_dsp *) context;
882 struct sst_hsw *hsw = sst_dsp_get_thread_context(sst);
883 u32 ipcx, ipcd;
884 int handled;
885 unsigned long flags;
886
887 spin_lock_irqsave(&sst->spinlock, flags);
888
889 ipcx = sst_dsp_ipc_msg_rx(hsw->dsp);
890 ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
891
892 /* reply message from DSP */
893 if (ipcx & SST_IPCX_DONE) {
894
895 /* Handle Immediate reply from DSP Core */
896 handled = hsw_process_reply(hsw, ipcx);
897
898 if (handled > 0) {
899 /* clear DONE bit - tell DSP we have completed */
900 sst_dsp_shim_update_bits_unlocked(sst, SST_IPCX,
901 SST_IPCX_DONE, 0);
902
903 /* unmask Done interrupt */
904 sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
905 SST_IMRX_DONE, 0);
906 }
907 }
908
909 /* new message from DSP */
910 if (ipcd & SST_IPCD_BUSY) {
911
912 /* Handle Notification and Delayed reply from DSP Core */
913 handled = hsw_process_notification(hsw);
914
915 /* clear BUSY bit and set DONE bit - accept new messages */
916 if (handled > 0) {
917 sst_dsp_shim_update_bits_unlocked(sst, SST_IPCD,
918 SST_IPCD_BUSY | SST_IPCD_DONE, SST_IPCD_DONE);
919
920 /* unmask busy interrupt */
921 sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
922 SST_IMRX_BUSY, 0);
923 }
924 }
925
926 spin_unlock_irqrestore(&sst->spinlock, flags);
927
928 /* continue to send any remaining messages... */
929 queue_kthread_work(&hsw->kworker, &hsw->kwork);
930
931 return IRQ_HANDLED;
932}
933
934int sst_hsw_fw_get_version(struct sst_hsw *hsw,
935 struct sst_hsw_ipc_fw_version *version)
936{
937 int ret;
938
939 ret = ipc_tx_message_wait(hsw, IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),
940 NULL, 0, version, sizeof(*version));
941 if (ret < 0)
942 dev_err(hsw->dev, "error: get version failed\n");
943
944 return ret;
945}
946
947/* Mixer Controls */
948int sst_hsw_stream_mute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
949 u32 stage_id, u32 channel)
950{
951 int ret;
952
953 ret = sst_hsw_stream_get_volume(hsw, stream, stage_id, channel,
954 &stream->mute_volume[channel]);
955 if (ret < 0)
956 return ret;
957
958 ret = sst_hsw_stream_set_volume(hsw, stream, stage_id, channel, 0);
959 if (ret < 0) {
960 dev_err(hsw->dev, "error: can't unmute stream %d channel %d\n",
961 stream->reply.stream_hw_id, channel);
962 return ret;
963 }
964
965 stream->mute[channel] = 1;
966 return 0;
967}
968
969int sst_hsw_stream_unmute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
970 u32 stage_id, u32 channel)
971
972{
973 int ret;
974
975 stream->mute[channel] = 0;
976 ret = sst_hsw_stream_set_volume(hsw, stream, stage_id, channel,
977 stream->mute_volume[channel]);
978 if (ret < 0) {
979 dev_err(hsw->dev, "error: can't unmute stream %d channel %d\n",
980 stream->reply.stream_hw_id, channel);
981 return ret;
982 }
983
984 return 0;
985}
986
987int sst_hsw_stream_get_volume(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
988 u32 stage_id, u32 channel, u32 *volume)
989{
990 if (channel > 1)
991 return -EINVAL;
992
993 sst_dsp_read(hsw->dsp, volume,
994 stream->reply.volume_register_address[channel], sizeof(volume));
995
996 return 0;
997}
998
999int sst_hsw_stream_set_volume_curve(struct sst_hsw *hsw,
1000 struct sst_hsw_stream *stream, u64 curve_duration,
1001 enum sst_hsw_volume_curve curve)
1002{
1003 /* curve duration in steps of 100ns */
1004 stream->vol_req.curve_duration = curve_duration;
1005 stream->vol_req.curve_type = curve;
1006
1007 return 0;
1008}
1009
1010/* stream volume */
1011int sst_hsw_stream_set_volume(struct sst_hsw *hsw,
1012 struct sst_hsw_stream *stream, u32 stage_id, u32 channel, u32 volume)
1013{
1014 struct sst_hsw_ipc_volume_req *req;
1015 u32 header;
1016 int ret;
1017
1018 trace_ipc_request("set stream volume", stream->reply.stream_hw_id);
1019
1020 if (channel > 1)
1021 return -EINVAL;
1022
1023 if (stream->mute[channel]) {
1024 stream->mute_volume[channel] = volume;
1025 return 0;
1026 }
1027
1028 header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
1029 IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
1030 header |= (stream->reply.stream_hw_id << IPC_STR_ID_SHIFT);
1031 header |= (IPC_STG_SET_VOLUME << IPC_STG_TYPE_SHIFT);
1032 header |= (stage_id << IPC_STG_ID_SHIFT);
1033
1034 req = &stream->vol_req;
1035 req->channel = channel;
1036 req->target_volume = volume;
1037
1038 ret = ipc_tx_message_wait(hsw, header, req, sizeof(*req), NULL, 0);
1039 if (ret < 0) {
1040 dev_err(hsw->dev, "error: set stream volume failed\n");
1041 return ret;
1042 }
1043
1044 return 0;
1045}
1046
1047int sst_hsw_mixer_mute(struct sst_hsw *hsw, u32 stage_id, u32 channel)
1048{
1049 int ret;
1050
1051 ret = sst_hsw_mixer_get_volume(hsw, stage_id, channel,
1052 &hsw->mute_volume[channel]);
1053 if (ret < 0)
1054 return ret;
1055
1056 ret = sst_hsw_mixer_set_volume(hsw, stage_id, channel, 0);
1057 if (ret < 0) {
1058 dev_err(hsw->dev, "error: failed to unmute mixer channel %d\n",
1059 channel);
1060 return ret;
1061 }
1062
1063 hsw->mute[channel] = 1;
1064 return 0;
1065}
1066
1067int sst_hsw_mixer_unmute(struct sst_hsw *hsw, u32 stage_id, u32 channel)
1068{
1069 int ret;
1070
1071 ret = sst_hsw_mixer_set_volume(hsw, stage_id, channel,
1072 hsw->mixer_info.volume_register_address[channel]);
1073 if (ret < 0) {
1074 dev_err(hsw->dev, "error: failed to unmute mixer channel %d\n",
1075 channel);
1076 return ret;
1077 }
1078
1079 hsw->mute[channel] = 0;
1080 return 0;
1081}
1082
1083int sst_hsw_mixer_get_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
1084 u32 *volume)
1085{
1086 if (channel > 1)
1087 return -EINVAL;
1088
1089 sst_dsp_read(hsw->dsp, volume,
1090 hsw->mixer_info.volume_register_address[channel],
1091 sizeof(*volume));
1092
1093 return 0;
1094}
1095
1096int sst_hsw_mixer_set_volume_curve(struct sst_hsw *hsw,
1097 u64 curve_duration, enum sst_hsw_volume_curve curve)
1098{
1099 /* curve duration in steps of 100ns */
1100 hsw->curve_duration = curve_duration;
1101 hsw->curve_type = curve;
1102
1103 return 0;
1104}
1105
1106/* global mixer volume */
1107int sst_hsw_mixer_set_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
1108 u32 volume)
1109{
1110 struct sst_hsw_ipc_volume_req req;
1111 u32 header;
1112 int ret;
1113
1114 trace_ipc_request("set mixer volume", volume);
1115
1116 /* set both at same time ? */
1117 if (channel == 2) {
1118 if (hsw->mute[0] && hsw->mute[1]) {
1119 hsw->mute_volume[0] = hsw->mute_volume[1] = volume;
1120 return 0;
1121 } else if (hsw->mute[0])
1122 req.channel = 1;
1123 else if (hsw->mute[1])
1124 req.channel = 0;
1125 else
1126 req.channel = 0xffffffff;
1127 } else {
1128 /* set only 1 channel */
1129 if (hsw->mute[channel]) {
1130 hsw->mute_volume[channel] = volume;
1131 return 0;
1132 }
1133 req.channel = channel;
1134 }
1135
1136 header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
1137 IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
1138 header |= (hsw->mixer_info.mixer_hw_id << IPC_STR_ID_SHIFT);
1139 header |= (IPC_STG_SET_VOLUME << IPC_STG_TYPE_SHIFT);
1140 header |= (stage_id << IPC_STG_ID_SHIFT);
1141
1142 req.curve_duration = hsw->curve_duration;
1143 req.curve_type = hsw->curve_type;
1144 req.target_volume = volume;
1145
1146 ret = ipc_tx_message_wait(hsw, header, &req, sizeof(req), NULL, 0);
1147 if (ret < 0) {
1148 dev_err(hsw->dev, "error: set mixer volume failed\n");
1149 return ret;
1150 }
1151
1152 return 0;
1153}
1154
1155/* Stream API */
1156struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id,
1157 u32 (*notify_position)(struct sst_hsw_stream *stream, void *data),
1158 void *data)
1159{
1160 struct sst_hsw_stream *stream;
1161
1162 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
1163 if (stream == NULL)
1164 return NULL;
1165
1166 list_add(&stream->node, &hsw->stream_list);
1167 stream->notify_position = notify_position;
1168 stream->pdata = data;
1169 stream->hsw = hsw;
1170 stream->host_id = id;
1171
1172 /* work to process notification messages */
1173 INIT_WORK(&stream->notify_work, hsw_notification_work);
1174
1175 return stream;
1176}
1177
1178int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
1179{
1180 u32 header;
1181 int ret = 0;
1182
1183 /* dont free DSP streams that are not commited */
1184 if (!stream->commited)
1185 goto out;
1186
1187 trace_ipc_request("stream free", stream->host_id);
1188
1189 stream->free_req.stream_id = stream->reply.stream_hw_id;
1190 header = IPC_GLB_TYPE(IPC_GLB_FREE_STREAM);
1191
1192 ret = ipc_tx_message_wait(hsw, header, &stream->free_req,
1193 sizeof(stream->free_req), NULL, 0);
1194 if (ret < 0) {
1195 dev_err(hsw->dev, "error: free stream %d failed\n",
1196 stream->free_req.stream_id);
1197 return -EAGAIN;
1198 }
1199
1200 trace_hsw_stream_free_req(stream, &stream->free_req);
1201
1202out:
1203 list_del(&stream->node);
1204 kfree(stream);
1205
1206 return ret;
1207}
1208
1209int sst_hsw_stream_set_bits(struct sst_hsw *hsw,
1210 struct sst_hsw_stream *stream, enum sst_hsw_bitdepth bits)
1211{
1212 if (stream->commited) {
1213 dev_err(hsw->dev, "error: stream committed for set bits\n");
1214 return -EINVAL;
1215 }
1216
1217 stream->request.format.bitdepth = bits;
1218 return 0;
1219}
1220
1221int sst_hsw_stream_set_channels(struct sst_hsw *hsw,
1222 struct sst_hsw_stream *stream, int channels)
1223{
1224 if (stream->commited) {
1225 dev_err(hsw->dev, "error: stream committed for set channels\n");
1226 return -EINVAL;
1227 }
1228
1229 /* stereo is only supported atm */
1230 if (channels != 2)
1231 return -EINVAL;
1232
1233 stream->request.format.ch_num = channels;
1234 return 0;
1235}
1236
1237int sst_hsw_stream_set_rate(struct sst_hsw *hsw,
1238 struct sst_hsw_stream *stream, int rate)
1239{
1240 if (stream->commited) {
1241 dev_err(hsw->dev, "error: stream committed for set rate\n");
1242 return -EINVAL;
1243 }
1244
1245 stream->request.format.frequency = rate;
1246 return 0;
1247}
1248
1249int sst_hsw_stream_set_map_config(struct sst_hsw *hsw,
1250 struct sst_hsw_stream *stream, u32 map,
1251 enum sst_hsw_channel_config config)
1252{
1253 if (stream->commited) {
1254 dev_err(hsw->dev, "error: stream committed for set map\n");
1255 return -EINVAL;
1256 }
1257
1258 stream->request.format.map = map;
1259 stream->request.format.config = config;
1260 return 0;
1261}
1262
1263int sst_hsw_stream_set_style(struct sst_hsw *hsw,
1264 struct sst_hsw_stream *stream, enum sst_hsw_interleaving style)
1265{
1266 if (stream->commited) {
1267 dev_err(hsw->dev, "error: stream committed for set style\n");
1268 return -EINVAL;
1269 }
1270
1271 stream->request.format.style = style;
1272 return 0;
1273}
1274
1275int sst_hsw_stream_set_valid(struct sst_hsw *hsw,
1276 struct sst_hsw_stream *stream, u32 bits)
1277{
1278 if (stream->commited) {
1279 dev_err(hsw->dev, "error: stream committed for set valid bits\n");
1280 return -EINVAL;
1281 }
1282
1283 stream->request.format.valid_bit = bits;
1284 return 0;
1285}
1286
1287/* Stream Configuration */
1288int sst_hsw_stream_format(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
1289 enum sst_hsw_stream_path_id path_id,
1290 enum sst_hsw_stream_type stream_type,
1291 enum sst_hsw_stream_format format_id)
1292{
1293 if (stream->commited) {
1294 dev_err(hsw->dev, "error: stream committed for set format\n");
1295 return -EINVAL;
1296 }
1297
1298 stream->request.path_id = path_id;
1299 stream->request.stream_type = stream_type;
1300 stream->request.format_id = format_id;
1301
1302 trace_hsw_stream_alloc_request(stream, &stream->request);
1303
1304 return 0;
1305}
1306
1307int sst_hsw_stream_buffer(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
1308 u32 ring_pt_address, u32 num_pages,
1309 u32 ring_size, u32 ring_offset, u32 ring_first_pfn)
1310{
1311 if (stream->commited) {
1312 dev_err(hsw->dev, "error: stream committed for buffer\n");
1313 return -EINVAL;
1314 }
1315
1316 stream->request.ringinfo.ring_pt_address = ring_pt_address;
1317 stream->request.ringinfo.num_pages = num_pages;
1318 stream->request.ringinfo.ring_size = ring_size;
1319 stream->request.ringinfo.ring_offset = ring_offset;
1320 stream->request.ringinfo.ring_first_pfn = ring_first_pfn;
1321
1322 trace_hsw_stream_buffer(stream);
1323
1324 return 0;
1325}
1326
1327int sst_hsw_stream_set_module_info(struct sst_hsw *hsw,
1328 struct sst_hsw_stream *stream, enum sst_hsw_module_id module_id,
1329 u32 entry_point)
1330{
1331 struct sst_hsw_module_map *map = &stream->request.map;
1332
1333 if (stream->commited) {
1334 dev_err(hsw->dev, "error: stream committed for set module\n");
1335 return -EINVAL;
1336 }
1337
1338 /* only support initial module atm */
1339 map->module_entries_count = 1;
1340 map->module_entries[0].module_id = module_id;
1341 map->module_entries[0].entry_point = entry_point;
1342
1343 return 0;
1344}
1345
1346int sst_hsw_stream_set_pmemory_info(struct sst_hsw *hsw,
1347 struct sst_hsw_stream *stream, u32 offset, u32 size)
1348{
1349 if (stream->commited) {
1350 dev_err(hsw->dev, "error: stream committed for set pmem\n");
1351 return -EINVAL;
1352 }
1353
1354 stream->request.persistent_mem.offset = offset;
1355 stream->request.persistent_mem.size = size;
1356
1357 return 0;
1358}
1359
1360int sst_hsw_stream_set_smemory_info(struct sst_hsw *hsw,
1361 struct sst_hsw_stream *stream, u32 offset, u32 size)
1362{
1363 if (stream->commited) {
1364 dev_err(hsw->dev, "error: stream committed for set smem\n");
1365 return -EINVAL;
1366 }
1367
1368 stream->request.scratch_mem.offset = offset;
1369 stream->request.scratch_mem.size = size;
1370
1371 return 0;
1372}
1373
1374int sst_hsw_stream_commit(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
1375{
1376 struct sst_hsw_ipc_stream_alloc_req *str_req = &stream->request;
1377 struct sst_hsw_ipc_stream_alloc_reply *reply = &stream->reply;
1378 u32 header;
1379 int ret;
1380
1381 trace_ipc_request("stream alloc", stream->host_id);
1382
1383 header = IPC_GLB_TYPE(IPC_GLB_ALLOCATE_STREAM);
1384
1385 ret = ipc_tx_message_wait(hsw, header, str_req, sizeof(*str_req),
1386 reply, sizeof(*reply));
1387 if (ret < 0) {
1388 dev_err(hsw->dev, "error: stream commit failed\n");
1389 return ret;
1390 }
1391
1392 stream->commited = 1;
1393 trace_hsw_stream_alloc_reply(stream);
1394
1395 return 0;
1396}
1397
1398/* Stream Information - these calls could be inline but we want the IPC
1399 ABI to be opaque to client PCM drivers to cope with any future ABI changes */
1400int sst_hsw_stream_get_hw_id(struct sst_hsw *hsw,
1401 struct sst_hsw_stream *stream)
1402{
1403 return stream->reply.stream_hw_id;
1404}
1405
1406int sst_hsw_stream_get_mixer_id(struct sst_hsw *hsw,
1407 struct sst_hsw_stream *stream)
1408{
1409 return stream->reply.mixer_hw_id;
1410}
1411
1412u32 sst_hsw_stream_get_read_reg(struct sst_hsw *hsw,
1413 struct sst_hsw_stream *stream)
1414{
1415 return stream->reply.read_position_register_address;
1416}
1417
1418u32 sst_hsw_stream_get_pointer_reg(struct sst_hsw *hsw,
1419 struct sst_hsw_stream *stream)
1420{
1421 return stream->reply.presentation_position_register_address;
1422}
1423
1424u32 sst_hsw_stream_get_peak_reg(struct sst_hsw *hsw,
1425 struct sst_hsw_stream *stream, u32 channel)
1426{
1427 if (channel >= 2)
1428 return 0;
1429
1430 return stream->reply.peak_meter_register_address[channel];
1431}
1432
1433u32 sst_hsw_stream_get_vol_reg(struct sst_hsw *hsw,
1434 struct sst_hsw_stream *stream, u32 channel)
1435{
1436 if (channel >= 2)
1437 return 0;
1438
1439 return stream->reply.volume_register_address[channel];
1440}
1441
1442int sst_hsw_mixer_get_info(struct sst_hsw *hsw)
1443{
1444 struct sst_hsw_ipc_stream_info_reply *reply;
1445 u32 header;
1446 int ret;
1447
1448 reply = &hsw->mixer_info;
1449 header = IPC_GLB_TYPE(IPC_GLB_GET_MIXER_STREAM_INFO);
1450
1451 trace_ipc_request("get global mixer info", 0);
1452
1453 ret = ipc_tx_message_wait(hsw, header, NULL, 0, reply, sizeof(*reply));
1454 if (ret < 0) {
1455 dev_err(hsw->dev, "error: get stream info failed\n");
1456 return ret;
1457 }
1458
1459 trace_hsw_mixer_info_reply(reply);
1460
1461 return 0;
1462}
1463
1464/* Send stream command */
1465static int sst_hsw_stream_operations(struct sst_hsw *hsw, int type,
1466 int stream_id, int wait)
1467{
1468 u32 header;
1469
1470 header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) | IPC_STR_TYPE(type);
1471 header |= (stream_id << IPC_STR_ID_SHIFT);
1472
1473 if (wait)
1474 return ipc_tx_message_wait(hsw, header, NULL, 0, NULL, 0);
1475 else
1476 return ipc_tx_message_nowait(hsw, header, NULL, 0);
1477}
1478
1479/* Stream ALSA trigger operations */
1480int sst_hsw_stream_pause(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
1481 int wait)
1482{
1483 int ret;
1484
1485 trace_ipc_request("stream pause", stream->reply.stream_hw_id);
1486
1487 ret = sst_hsw_stream_operations(hsw, IPC_STR_PAUSE,
1488 stream->reply.stream_hw_id, wait);
1489 if (ret < 0)
1490 dev_err(hsw->dev, "error: failed to pause stream %d\n",
1491 stream->reply.stream_hw_id);
1492
1493 return ret;
1494}
1495
1496int sst_hsw_stream_resume(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
1497 int wait)
1498{
1499 int ret;
1500
1501 trace_ipc_request("stream resume", stream->reply.stream_hw_id);
1502
1503 ret = sst_hsw_stream_operations(hsw, IPC_STR_RESUME,
1504 stream->reply.stream_hw_id, wait);
1505 if (ret < 0)
1506 dev_err(hsw->dev, "error: failed to resume stream %d\n",
1507 stream->reply.stream_hw_id);
1508
1509 return ret;
1510}
1511
1512int sst_hsw_stream_reset(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
1513{
1514 int ret, tries = 10;
1515
1516 /* dont reset streams that are not commited */
1517 if (!stream->commited)
1518 return 0;
1519
1520 /* wait for pause to complete before we reset the stream */
1521 while (stream->running && tries--)
1522 msleep(1);
1523 if (!tries) {
1524 dev_err(hsw->dev, "error: reset stream %d still running\n",
1525 stream->reply.stream_hw_id);
1526 return -EINVAL;
1527 }
1528
1529 trace_ipc_request("stream reset", stream->reply.stream_hw_id);
1530
1531 ret = sst_hsw_stream_operations(hsw, IPC_STR_RESET,
1532 stream->reply.stream_hw_id, 1);
1533 if (ret < 0)
1534 dev_err(hsw->dev, "error: failed to reset stream %d\n",
1535 stream->reply.stream_hw_id);
1536 return ret;
1537}
1538
1539/* Stream pointer positions */
1540int sst_hsw_get_dsp_position(struct sst_hsw *hsw,
1541 struct sst_hsw_stream *stream)
1542{
1543 return stream->rpos.position;
1544}
1545
1546int sst_hsw_stream_set_write_position(struct sst_hsw *hsw,
1547 struct sst_hsw_stream *stream, u32 stage_id, u32 position)
1548{
1549 u32 header;
1550 int ret;
1551
1552 trace_stream_write_position(stream->reply.stream_hw_id, position);
1553
1554 header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
1555 IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
1556 header |= (stream->reply.stream_hw_id << IPC_STR_ID_SHIFT);
1557 header |= (IPC_STG_SET_WRITE_POSITION << IPC_STG_TYPE_SHIFT);
1558 header |= (stage_id << IPC_STG_ID_SHIFT);
1559 stream->wpos.position = position;
1560
1561 ret = ipc_tx_message_nowait(hsw, header, &stream->wpos,
1562 sizeof(stream->wpos));
1563 if (ret < 0)
1564 dev_err(hsw->dev, "error: stream %d set position %d failed\n",
1565 stream->reply.stream_hw_id, position);
1566
1567 return ret;
1568}
1569
1570/* physical BE config */
1571int sst_hsw_device_set_config(struct sst_hsw *hsw,
1572 enum sst_hsw_device_id dev, enum sst_hsw_device_mclk mclk,
1573 enum sst_hsw_device_mode mode, u32 clock_divider)
1574{
1575 struct sst_hsw_ipc_device_config_req config;
1576 u32 header;
1577 int ret;
1578
1579 trace_ipc_request("set device config", dev);
1580
1581 config.ssp_interface = dev;
1582 config.clock_frequency = mclk;
1583 config.mode = mode;
1584 config.clock_divider = clock_divider;
1585
1586 trace_hsw_device_config_req(&config);
1587
1588 header = IPC_GLB_TYPE(IPC_GLB_SET_DEVICE_FORMATS);
1589
1590 ret = ipc_tx_message_wait(hsw, header, &config, sizeof(config),
1591 NULL, 0);
1592 if (ret < 0)
1593 dev_err(hsw->dev, "error: set device formats failed\n");
1594
1595 return ret;
1596}
1597EXPORT_SYMBOL_GPL(sst_hsw_device_set_config);
1598
1599/* DX Config */
1600int sst_hsw_dx_set_state(struct sst_hsw *hsw,
1601 enum sst_hsw_dx_state state, struct sst_hsw_ipc_dx_reply *dx)
1602{
1603 u32 header, state_;
1604 int ret;
1605
1606 header = IPC_GLB_TYPE(IPC_GLB_ENTER_DX_STATE);
1607 state_ = state;
1608
1609 trace_ipc_request("PM enter Dx state", state);
1610
1611 ret = ipc_tx_message_wait(hsw, header, &state_, sizeof(state_),
1612 dx, sizeof(dx));
1613 if (ret < 0) {
1614 dev_err(hsw->dev, "ipc: error set dx state %d failed\n", state);
1615 return ret;
1616 }
1617
1618 dev_dbg(hsw->dev, "ipc: got %d entry numbers for state %d\n",
1619 dx->entries_no, state);
1620
1621 memcpy(&hsw->dx, dx, sizeof(*dx));
1622 return 0;
1623}
1624
1625/* Used to save state into hsw->dx_reply */
1626int sst_hsw_dx_get_state(struct sst_hsw *hsw, u32 item,
1627 u32 *offset, u32 *size, u32 *source)
1628{
1629 struct sst_hsw_ipc_dx_memory_item *dx_mem;
1630 struct sst_hsw_ipc_dx_reply *dx_reply;
1631 int entry_no;
1632
1633 dx_reply = &hsw->dx;
1634 entry_no = dx_reply->entries_no;
1635
1636 trace_ipc_request("PM get Dx state", entry_no);
1637
1638 if (item >= entry_no)
1639 return -EINVAL;
1640
1641 dx_mem = &dx_reply->mem_info[item];
1642 *offset = dx_mem->offset;
1643 *size = dx_mem->size;
1644 *source = dx_mem->source;
1645
1646 return 0;
1647}
1648
1649static int msg_empty_list_init(struct sst_hsw *hsw)
1650{
1651 int i;
1652
1653 hsw->msg = kzalloc(sizeof(struct ipc_message) *
1654 IPC_EMPTY_LIST_SIZE, GFP_KERNEL);
1655 if (hsw->msg == NULL)
1656 return -ENOMEM;
1657
1658 for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {
1659 init_waitqueue_head(&hsw->msg[i].waitq);
1660 list_add(&hsw->msg[i].list, &hsw->empty_list);
1661 }
1662
1663 return 0;
1664}
1665
1666void sst_hsw_set_scratch_module(struct sst_hsw *hsw,
1667 struct sst_module *scratch)
1668{
1669 hsw->scratch = scratch;
1670}
1671
1672struct sst_dsp *sst_hsw_get_dsp(struct sst_hsw *hsw)
1673{
1674 return hsw->dsp;
1675}
1676
1677static struct sst_dsp_device hsw_dev = {
1678 .thread = hsw_irq_thread,
1679 .ops = &haswell_ops,
1680};
1681
1682int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)
1683{
1684 struct sst_hsw_ipc_fw_version version;
1685 struct sst_hsw *hsw;
1686 struct sst_fw *hsw_sst_fw;
1687 int ret;
1688
1689 dev_dbg(dev, "initialising Audio DSP IPC\n");
1690
1691 hsw = devm_kzalloc(dev, sizeof(*hsw), GFP_KERNEL);
1692 if (hsw == NULL)
1693 return -ENOMEM;
1694
1695 hsw->dev = dev;
1696 INIT_LIST_HEAD(&hsw->stream_list);
1697 INIT_LIST_HEAD(&hsw->tx_list);
1698 INIT_LIST_HEAD(&hsw->rx_list);
1699 INIT_LIST_HEAD(&hsw->empty_list);
1700 init_waitqueue_head(&hsw->boot_wait);
1701 init_waitqueue_head(&hsw->wait_txq);
1702
1703 ret = msg_empty_list_init(hsw);
1704 if (ret < 0)
1705 goto list_err;
1706
1707 /* start the IPC message thread */
1708 init_kthread_worker(&hsw->kworker);
1709 hsw->tx_thread = kthread_run(kthread_worker_fn,
1710 &hsw->kworker,
1711 dev_name(hsw->dev));
1712 if (IS_ERR(hsw->tx_thread)) {
1713 ret = PTR_ERR(hsw->tx_thread);
1714 dev_err(hsw->dev, "error: failed to create message TX task\n");
1715 goto list_err;
1716 }
1717 init_kthread_work(&hsw->kwork, ipc_tx_msgs);
1718
1719 hsw_dev.thread_context = hsw;
1720
1721 /* init SST shim */
1722 hsw->dsp = sst_dsp_new(dev, &hsw_dev, pdata);
1723 if (hsw->dsp == NULL) {
1724 ret = -ENODEV;
1725 goto list_err;
1726 }
1727
1728 /* keep the DSP in reset state for base FW loading */
1729 sst_dsp_reset(hsw->dsp);
1730
1731 hsw_sst_fw = sst_fw_new(hsw->dsp, pdata->fw, hsw);
1732
1733 if (hsw_sst_fw == NULL) {
1734 ret = -ENODEV;
1735 dev_err(dev, "error: failed to load firmware\n");
1736 goto fw_err;
1737 }
1738
1739 /* wait for DSP boot completion */
1740 sst_dsp_boot(hsw->dsp);
1741 ret = wait_event_timeout(hsw->boot_wait, hsw->boot_complete,
1742 msecs_to_jiffies(IPC_BOOT_MSECS));
1743 if (ret == 0) {
1744 ret = -EIO;
1745 dev_err(hsw->dev, "error: ADSP boot timeout\n");
1746 goto boot_err;
1747 }
1748
1749 /* get the FW version */
1750 sst_hsw_fw_get_version(hsw, &version);
1751 dev_info(hsw->dev, "FW loaded: type %d - version: %d.%d build %d\n",
1752 version.type, version.major, version.minor, version.build);
1753
1754 /* get the globalmixer */
1755 ret = sst_hsw_mixer_get_info(hsw);
1756 if (ret < 0) {
1757 dev_err(hsw->dev, "error: failed to get stream info\n");
1758 goto boot_err;
1759 }
1760
1761 pdata->dsp = hsw;
1762 return 0;
1763
1764boot_err:
1765 sst_dsp_reset(hsw->dsp);
1766 sst_fw_free(hsw_sst_fw);
1767fw_err:
1768 sst_dsp_free(hsw->dsp);
1769 kfree(hsw->msg);
1770list_err:
1771 return ret;
1772}
1773EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
1774
1775void sst_hsw_dsp_free(struct device *dev, struct sst_pdata *pdata)
1776{
1777 struct sst_hsw *hsw = pdata->dsp;
1778
1779 sst_dsp_reset(hsw->dsp);
1780 sst_fw_free_all(hsw->dsp);
1781 sst_dsp_free(hsw->dsp);
1782 kfree(hsw->scratch);
1783 kfree(hsw->msg);
1784}
1785EXPORT_SYMBOL_GPL(sst_hsw_dsp_free);
Linux 6.x block layer and io_uring tree(s)