xref: /openbmc/linux/sound/soc/codecs/wm_adsp.c (revision 48cc39c3)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * wm_adsp.c  --  Wolfson ADSP support
4  *
5  * Copyright 2012 Wolfson Microelectronics plc
6  *
7  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8  */
9 
10 #include <linux/ctype.h>
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/firmware.h>
16 #include <linux/list.h>
17 #include <linux/pm.h>
18 #include <linux/pm_runtime.h>
19 #include <linux/regmap.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/slab.h>
22 #include <linux/vmalloc.h>
23 #include <linux/workqueue.h>
24 #include <linux/debugfs.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/jack.h>
30 #include <sound/initval.h>
31 #include <sound/tlv.h>
32 
33 #include "wm_adsp.h"
34 
35 #define adsp_crit(_dsp, fmt, ...) \
36 	dev_crit(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
37 #define adsp_err(_dsp, fmt, ...) \
38 	dev_err(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
39 #define adsp_warn(_dsp, fmt, ...) \
40 	dev_warn(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
41 #define adsp_info(_dsp, fmt, ...) \
42 	dev_info(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
43 #define adsp_dbg(_dsp, fmt, ...) \
44 	dev_dbg(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
45 
46 #define compr_err(_obj, fmt, ...) \
47 	adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
48 		 ##__VA_ARGS__)
49 #define compr_dbg(_obj, fmt, ...) \
50 	adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
51 		 ##__VA_ARGS__)
52 
53 #define ADSP1_CONTROL_1                   0x00
54 #define ADSP1_CONTROL_2                   0x02
55 #define ADSP1_CONTROL_3                   0x03
56 #define ADSP1_CONTROL_4                   0x04
57 #define ADSP1_CONTROL_5                   0x06
58 #define ADSP1_CONTROL_6                   0x07
59 #define ADSP1_CONTROL_7                   0x08
60 #define ADSP1_CONTROL_8                   0x09
61 #define ADSP1_CONTROL_9                   0x0A
62 #define ADSP1_CONTROL_10                  0x0B
63 #define ADSP1_CONTROL_11                  0x0C
64 #define ADSP1_CONTROL_12                  0x0D
65 #define ADSP1_CONTROL_13                  0x0F
66 #define ADSP1_CONTROL_14                  0x10
67 #define ADSP1_CONTROL_15                  0x11
68 #define ADSP1_CONTROL_16                  0x12
69 #define ADSP1_CONTROL_17                  0x13
70 #define ADSP1_CONTROL_18                  0x14
71 #define ADSP1_CONTROL_19                  0x16
72 #define ADSP1_CONTROL_20                  0x17
73 #define ADSP1_CONTROL_21                  0x18
74 #define ADSP1_CONTROL_22                  0x1A
75 #define ADSP1_CONTROL_23                  0x1B
76 #define ADSP1_CONTROL_24                  0x1C
77 #define ADSP1_CONTROL_25                  0x1E
78 #define ADSP1_CONTROL_26                  0x20
79 #define ADSP1_CONTROL_27                  0x21
80 #define ADSP1_CONTROL_28                  0x22
81 #define ADSP1_CONTROL_29                  0x23
82 #define ADSP1_CONTROL_30                  0x24
83 #define ADSP1_CONTROL_31                  0x26
84 
85 /*
86  * ADSP1 Control 19
87  */
88 #define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
89 #define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
90 #define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
91 
92 
93 /*
94  * ADSP1 Control 30
95  */
96 #define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
97 #define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
98 #define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
99 #define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
100 #define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
101 #define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
102 #define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
103 #define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
104 #define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
105 #define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
106 #define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
107 #define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
108 #define ADSP1_START                       0x0001  /* DSP1_START */
109 #define ADSP1_START_MASK                  0x0001  /* DSP1_START */
110 #define ADSP1_START_SHIFT                      0  /* DSP1_START */
111 #define ADSP1_START_WIDTH                      1  /* DSP1_START */
112 
113 /*
114  * ADSP1 Control 31
115  */
116 #define ADSP1_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
117 #define ADSP1_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
118 #define ADSP1_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
119 
120 #define ADSP2_CONTROL                     0x0
121 #define ADSP2_CLOCKING                    0x1
122 #define ADSP2V2_CLOCKING                  0x2
123 #define ADSP2_STATUS1                     0x4
124 #define ADSP2_WDMA_CONFIG_1               0x30
125 #define ADSP2_WDMA_CONFIG_2               0x31
126 #define ADSP2V2_WDMA_CONFIG_2             0x32
127 #define ADSP2_RDMA_CONFIG_1               0x34
128 
129 #define ADSP2_SCRATCH0                    0x40
130 #define ADSP2_SCRATCH1                    0x41
131 #define ADSP2_SCRATCH2                    0x42
132 #define ADSP2_SCRATCH3                    0x43
133 
134 #define ADSP2V2_SCRATCH0_1                0x40
135 #define ADSP2V2_SCRATCH2_3                0x42
136 
137 /*
138  * ADSP2 Control
139  */
140 
141 #define ADSP2_MEM_ENA                     0x0010  /* DSP1_MEM_ENA */
142 #define ADSP2_MEM_ENA_MASK                0x0010  /* DSP1_MEM_ENA */
143 #define ADSP2_MEM_ENA_SHIFT                    4  /* DSP1_MEM_ENA */
144 #define ADSP2_MEM_ENA_WIDTH                    1  /* DSP1_MEM_ENA */
145 #define ADSP2_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
146 #define ADSP2_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
147 #define ADSP2_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
148 #define ADSP2_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
149 #define ADSP2_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
150 #define ADSP2_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
151 #define ADSP2_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
152 #define ADSP2_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
153 #define ADSP2_START                       0x0001  /* DSP1_START */
154 #define ADSP2_START_MASK                  0x0001  /* DSP1_START */
155 #define ADSP2_START_SHIFT                      0  /* DSP1_START */
156 #define ADSP2_START_WIDTH                      1  /* DSP1_START */
157 
158 /*
159  * ADSP2 clocking
160  */
161 #define ADSP2_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
162 #define ADSP2_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
163 #define ADSP2_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
164 
165 /*
166  * ADSP2V2 clocking
167  */
168 #define ADSP2V2_CLK_SEL_MASK             0x70000  /* CLK_SEL_ENA */
169 #define ADSP2V2_CLK_SEL_SHIFT                 16  /* CLK_SEL_ENA */
170 #define ADSP2V2_CLK_SEL_WIDTH                  3  /* CLK_SEL_ENA */
171 
172 #define ADSP2V2_RATE_MASK                 0x7800  /* DSP_RATE */
173 #define ADSP2V2_RATE_SHIFT                    11  /* DSP_RATE */
174 #define ADSP2V2_RATE_WIDTH                     4  /* DSP_RATE */
175 
176 /*
177  * ADSP2 Status 1
178  */
179 #define ADSP2_RAM_RDY                     0x0001
180 #define ADSP2_RAM_RDY_MASK                0x0001
181 #define ADSP2_RAM_RDY_SHIFT                    0
182 #define ADSP2_RAM_RDY_WIDTH                    1
183 
184 /*
185  * ADSP2 Lock support
186  */
187 #define ADSP2_LOCK_CODE_0                    0x5555
188 #define ADSP2_LOCK_CODE_1                    0xAAAA
189 
190 #define ADSP2_WATCHDOG                       0x0A
191 #define ADSP2_BUS_ERR_ADDR                   0x52
192 #define ADSP2_REGION_LOCK_STATUS             0x64
193 #define ADSP2_LOCK_REGION_1_LOCK_REGION_0    0x66
194 #define ADSP2_LOCK_REGION_3_LOCK_REGION_2    0x68
195 #define ADSP2_LOCK_REGION_5_LOCK_REGION_4    0x6A
196 #define ADSP2_LOCK_REGION_7_LOCK_REGION_6    0x6C
197 #define ADSP2_LOCK_REGION_9_LOCK_REGION_8    0x6E
198 #define ADSP2_LOCK_REGION_CTRL               0x7A
199 #define ADSP2_PMEM_ERR_ADDR_XMEM_ERR_ADDR    0x7C
200 
201 #define ADSP2_REGION_LOCK_ERR_MASK           0x8000
202 #define ADSP2_ADDR_ERR_MASK                  0x4000
203 #define ADSP2_WDT_TIMEOUT_STS_MASK           0x2000
204 #define ADSP2_CTRL_ERR_PAUSE_ENA             0x0002
205 #define ADSP2_CTRL_ERR_EINT                  0x0001
206 
207 #define ADSP2_BUS_ERR_ADDR_MASK              0x00FFFFFF
208 #define ADSP2_XMEM_ERR_ADDR_MASK             0x0000FFFF
209 #define ADSP2_PMEM_ERR_ADDR_MASK             0x7FFF0000
210 #define ADSP2_PMEM_ERR_ADDR_SHIFT            16
211 #define ADSP2_WDT_ENA_MASK                   0xFFFFFFFD
212 
213 #define ADSP2_LOCK_REGION_SHIFT              16
214 
215 #define ADSP_MAX_STD_CTRL_SIZE               512
216 
217 #define WM_ADSP_ACKED_CTL_TIMEOUT_MS         100
218 #define WM_ADSP_ACKED_CTL_N_QUICKPOLLS       10
219 #define WM_ADSP_ACKED_CTL_MIN_VALUE          0
220 #define WM_ADSP_ACKED_CTL_MAX_VALUE          0xFFFFFF
221 
222 /*
223  * Event control messages
224  */
225 #define WM_ADSP_FW_EVENT_SHUTDOWN            0x000001
226 
227 /*
228  * HALO system info
229  */
230 #define HALO_AHBM_WINDOW_DEBUG_0             0x02040
231 #define HALO_AHBM_WINDOW_DEBUG_1             0x02044
232 
233 /*
234  * HALO core
235  */
236 #define HALO_SCRATCH1                        0x005c0
237 #define HALO_SCRATCH2                        0x005c8
238 #define HALO_SCRATCH3                        0x005d0
239 #define HALO_SCRATCH4                        0x005d8
240 #define HALO_CCM_CORE_CONTROL                0x41000
241 #define HALO_CORE_SOFT_RESET                 0x00010
242 #define HALO_WDT_CONTROL                     0x47000
243 
244 /*
245  * HALO MPU banks
246  */
247 #define HALO_MPU_XMEM_ACCESS_0               0x43000
248 #define HALO_MPU_YMEM_ACCESS_0               0x43004
249 #define HALO_MPU_WINDOW_ACCESS_0             0x43008
250 #define HALO_MPU_XREG_ACCESS_0               0x4300C
251 #define HALO_MPU_YREG_ACCESS_0               0x43014
252 #define HALO_MPU_XMEM_ACCESS_1               0x43018
253 #define HALO_MPU_YMEM_ACCESS_1               0x4301C
254 #define HALO_MPU_WINDOW_ACCESS_1             0x43020
255 #define HALO_MPU_XREG_ACCESS_1               0x43024
256 #define HALO_MPU_YREG_ACCESS_1               0x4302C
257 #define HALO_MPU_XMEM_ACCESS_2               0x43030
258 #define HALO_MPU_YMEM_ACCESS_2               0x43034
259 #define HALO_MPU_WINDOW_ACCESS_2             0x43038
260 #define HALO_MPU_XREG_ACCESS_2               0x4303C
261 #define HALO_MPU_YREG_ACCESS_2               0x43044
262 #define HALO_MPU_XMEM_ACCESS_3               0x43048
263 #define HALO_MPU_YMEM_ACCESS_3               0x4304C
264 #define HALO_MPU_WINDOW_ACCESS_3             0x43050
265 #define HALO_MPU_XREG_ACCESS_3               0x43054
266 #define HALO_MPU_YREG_ACCESS_3               0x4305C
267 #define HALO_MPU_XM_VIO_ADDR                 0x43100
268 #define HALO_MPU_XM_VIO_STATUS               0x43104
269 #define HALO_MPU_YM_VIO_ADDR                 0x43108
270 #define HALO_MPU_YM_VIO_STATUS               0x4310C
271 #define HALO_MPU_PM_VIO_ADDR                 0x43110
272 #define HALO_MPU_PM_VIO_STATUS               0x43114
273 #define HALO_MPU_LOCK_CONFIG                 0x43140
274 
275 /*
276  * HALO_AHBM_WINDOW_DEBUG_1
277  */
278 #define HALO_AHBM_CORE_ERR_ADDR_MASK         0x0fffff00
279 #define HALO_AHBM_CORE_ERR_ADDR_SHIFT                 8
280 #define HALO_AHBM_FLAGS_ERR_MASK             0x000000ff
281 
282 /*
283  * HALO_CCM_CORE_CONTROL
284  */
285 #define HALO_CORE_RESET                     0x00000200
286 #define HALO_CORE_EN                        0x00000001
287 
288 /*
289  * HALO_CORE_SOFT_RESET
290  */
291 #define HALO_CORE_SOFT_RESET_MASK           0x00000001
292 
293 /*
294  * HALO_WDT_CONTROL
295  */
296 #define HALO_WDT_EN_MASK                    0x00000001
297 
298 /*
299  * HALO_MPU_?M_VIO_STATUS
300  */
301 #define HALO_MPU_VIO_STS_MASK               0x007e0000
302 #define HALO_MPU_VIO_STS_SHIFT                      17
303 #define HALO_MPU_VIO_ERR_WR_MASK            0x00008000
304 #define HALO_MPU_VIO_ERR_SRC_MASK           0x00007fff
305 #define HALO_MPU_VIO_ERR_SRC_SHIFT                   0
306 
307 static const struct wm_adsp_ops wm_adsp1_ops;
308 static const struct wm_adsp_ops wm_adsp2_ops[];
309 static const struct wm_adsp_ops wm_halo_ops;
310 
311 struct wm_adsp_buf {
312 	struct list_head list;
313 	void *buf;
314 };
315 
316 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
317 					     struct list_head *list)
318 {
319 	struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
320 
321 	if (buf == NULL)
322 		return NULL;
323 
324 	buf->buf = vmalloc(len);
325 	if (!buf->buf) {
326 		kfree(buf);
327 		return NULL;
328 	}
329 	memcpy(buf->buf, src, len);
330 
331 	if (list)
332 		list_add_tail(&buf->list, list);
333 
334 	return buf;
335 }
336 
337 static void wm_adsp_buf_free(struct list_head *list)
338 {
339 	while (!list_empty(list)) {
340 		struct wm_adsp_buf *buf = list_first_entry(list,
341 							   struct wm_adsp_buf,
342 							   list);
343 		list_del(&buf->list);
344 		vfree(buf->buf);
345 		kfree(buf);
346 	}
347 }
348 
349 #define WM_ADSP_FW_MBC_VSS  0
350 #define WM_ADSP_FW_HIFI     1
351 #define WM_ADSP_FW_TX       2
352 #define WM_ADSP_FW_TX_SPK   3
353 #define WM_ADSP_FW_RX       4
354 #define WM_ADSP_FW_RX_ANC   5
355 #define WM_ADSP_FW_CTRL     6
356 #define WM_ADSP_FW_ASR      7
357 #define WM_ADSP_FW_TRACE    8
358 #define WM_ADSP_FW_SPK_PROT 9
359 #define WM_ADSP_FW_SPK_CALI 10
360 #define WM_ADSP_FW_SPK_DIAG 11
361 #define WM_ADSP_FW_MISC     12
362 
363 #define WM_ADSP_NUM_FW      13
364 
365 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
366 	[WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
367 	[WM_ADSP_FW_HIFI] =     "MasterHiFi",
368 	[WM_ADSP_FW_TX] =       "Tx",
369 	[WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
370 	[WM_ADSP_FW_RX] =       "Rx",
371 	[WM_ADSP_FW_RX_ANC] =   "Rx ANC",
372 	[WM_ADSP_FW_CTRL] =     "Voice Ctrl",
373 	[WM_ADSP_FW_ASR] =      "ASR Assist",
374 	[WM_ADSP_FW_TRACE] =    "Dbg Trace",
375 	[WM_ADSP_FW_SPK_PROT] = "Protection",
376 	[WM_ADSP_FW_SPK_CALI] = "Calibration",
377 	[WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
378 	[WM_ADSP_FW_MISC] =     "Misc",
379 };
380 
381 struct wm_adsp_system_config_xm_hdr {
382 	__be32 sys_enable;
383 	__be32 fw_id;
384 	__be32 fw_rev;
385 	__be32 boot_status;
386 	__be32 watchdog;
387 	__be32 dma_buffer_size;
388 	__be32 rdma[6];
389 	__be32 wdma[8];
390 	__be32 build_job_name[3];
391 	__be32 build_job_number;
392 };
393 
394 struct wm_halo_system_config_xm_hdr {
395 	__be32 halo_heartbeat;
396 	__be32 build_job_name[3];
397 	__be32 build_job_number;
398 };
399 
400 struct wm_adsp_alg_xm_struct {
401 	__be32 magic;
402 	__be32 smoothing;
403 	__be32 threshold;
404 	__be32 host_buf_ptr;
405 	__be32 start_seq;
406 	__be32 high_water_mark;
407 	__be32 low_water_mark;
408 	__be64 smoothed_power;
409 };
410 
411 struct wm_adsp_host_buf_coeff_v1 {
412 	__be32 host_buf_ptr;		/* Host buffer pointer */
413 	__be32 versions;		/* Version numbers */
414 	__be32 name[4];			/* The buffer name */
415 };
416 
417 struct wm_adsp_buffer {
418 	__be32 buf1_base;		/* Base addr of first buffer area */
419 	__be32 buf1_size;		/* Size of buf1 area in DSP words */
420 	__be32 buf2_base;		/* Base addr of 2nd buffer area */
421 	__be32 buf1_buf2_size;		/* Size of buf1+buf2 in DSP words */
422 	__be32 buf3_base;		/* Base addr of buf3 area */
423 	__be32 buf_total_size;		/* Size of buf1+buf2+buf3 in DSP words */
424 	__be32 high_water_mark;		/* Point at which IRQ is asserted */
425 	__be32 irq_count;		/* bits 1-31 count IRQ assertions */
426 	__be32 irq_ack;			/* acked IRQ count, bit 0 enables IRQ */
427 	__be32 next_write_index;	/* word index of next write */
428 	__be32 next_read_index;		/* word index of next read */
429 	__be32 error;			/* error if any */
430 	__be32 oldest_block_index;	/* word index of oldest surviving */
431 	__be32 requested_rewind;	/* how many blocks rewind was done */
432 	__be32 reserved_space;		/* internal */
433 	__be32 min_free;		/* min free space since stream start */
434 	__be32 blocks_written[2];	/* total blocks written (64 bit) */
435 	__be32 words_written[2];	/* total words written (64 bit) */
436 };
437 
438 struct wm_adsp_compr;
439 
440 struct wm_adsp_compr_buf {
441 	struct list_head list;
442 	struct wm_adsp *dsp;
443 	struct wm_adsp_compr *compr;
444 
445 	struct wm_adsp_buffer_region *regions;
446 	u32 host_buf_ptr;
447 
448 	u32 error;
449 	u32 irq_count;
450 	int read_index;
451 	int avail;
452 	int host_buf_mem_type;
453 
454 	char *name;
455 };
456 
457 struct wm_adsp_compr {
458 	struct list_head list;
459 	struct wm_adsp *dsp;
460 	struct wm_adsp_compr_buf *buf;
461 
462 	struct snd_compr_stream *stream;
463 	struct snd_compressed_buffer size;
464 
465 	u32 *raw_buf;
466 	unsigned int copied_total;
467 
468 	unsigned int sample_rate;
469 
470 	const char *name;
471 };
472 
473 #define WM_ADSP_DATA_WORD_SIZE         3
474 
475 #define WM_ADSP_MIN_FRAGMENTS          1
476 #define WM_ADSP_MAX_FRAGMENTS          256
477 #define WM_ADSP_MIN_FRAGMENT_SIZE      (64 * WM_ADSP_DATA_WORD_SIZE)
478 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * WM_ADSP_DATA_WORD_SIZE)
479 
480 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
481 
482 #define HOST_BUFFER_FIELD(field) \
483 	(offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
484 
485 #define ALG_XM_FIELD(field) \
486 	(offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
487 
488 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER	1
489 
490 #define HOST_BUF_COEFF_COMPAT_VER_MASK		0xFF00
491 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT		8
492 
493 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
494 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
495 
496 struct wm_adsp_buffer_region {
497 	unsigned int offset;
498 	unsigned int cumulative_size;
499 	unsigned int mem_type;
500 	unsigned int base_addr;
501 };
502 
503 struct wm_adsp_buffer_region_def {
504 	unsigned int mem_type;
505 	unsigned int base_offset;
506 	unsigned int size_offset;
507 };
508 
509 static const struct wm_adsp_buffer_region_def default_regions[] = {
510 	{
511 		.mem_type = WMFW_ADSP2_XM,
512 		.base_offset = HOST_BUFFER_FIELD(buf1_base),
513 		.size_offset = HOST_BUFFER_FIELD(buf1_size),
514 	},
515 	{
516 		.mem_type = WMFW_ADSP2_XM,
517 		.base_offset = HOST_BUFFER_FIELD(buf2_base),
518 		.size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
519 	},
520 	{
521 		.mem_type = WMFW_ADSP2_YM,
522 		.base_offset = HOST_BUFFER_FIELD(buf3_base),
523 		.size_offset = HOST_BUFFER_FIELD(buf_total_size),
524 	},
525 };
526 
527 struct wm_adsp_fw_caps {
528 	u32 id;
529 	struct snd_codec_desc desc;
530 	int num_regions;
531 	const struct wm_adsp_buffer_region_def *region_defs;
532 };
533 
534 static const struct wm_adsp_fw_caps ctrl_caps[] = {
535 	{
536 		.id = SND_AUDIOCODEC_BESPOKE,
537 		.desc = {
538 			.max_ch = 8,
539 			.sample_rates = { 16000 },
540 			.num_sample_rates = 1,
541 			.formats = SNDRV_PCM_FMTBIT_S16_LE,
542 		},
543 		.num_regions = ARRAY_SIZE(default_regions),
544 		.region_defs = default_regions,
545 	},
546 };
547 
548 static const struct wm_adsp_fw_caps trace_caps[] = {
549 	{
550 		.id = SND_AUDIOCODEC_BESPOKE,
551 		.desc = {
552 			.max_ch = 8,
553 			.sample_rates = {
554 				4000, 8000, 11025, 12000, 16000, 22050,
555 				24000, 32000, 44100, 48000, 64000, 88200,
556 				96000, 176400, 192000
557 			},
558 			.num_sample_rates = 15,
559 			.formats = SNDRV_PCM_FMTBIT_S16_LE,
560 		},
561 		.num_regions = ARRAY_SIZE(default_regions),
562 		.region_defs = default_regions,
563 	},
564 };
565 
566 static const struct {
567 	const char *file;
568 	int compr_direction;
569 	int num_caps;
570 	const struct wm_adsp_fw_caps *caps;
571 	bool voice_trigger;
572 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
573 	[WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
574 	[WM_ADSP_FW_HIFI] =     { .file = "hifi" },
575 	[WM_ADSP_FW_TX] =       { .file = "tx" },
576 	[WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
577 	[WM_ADSP_FW_RX] =       { .file = "rx" },
578 	[WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
579 	[WM_ADSP_FW_CTRL] =     {
580 		.file = "ctrl",
581 		.compr_direction = SND_COMPRESS_CAPTURE,
582 		.num_caps = ARRAY_SIZE(ctrl_caps),
583 		.caps = ctrl_caps,
584 		.voice_trigger = true,
585 	},
586 	[WM_ADSP_FW_ASR] =      { .file = "asr" },
587 	[WM_ADSP_FW_TRACE] =    {
588 		.file = "trace",
589 		.compr_direction = SND_COMPRESS_CAPTURE,
590 		.num_caps = ARRAY_SIZE(trace_caps),
591 		.caps = trace_caps,
592 	},
593 	[WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
594 	[WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
595 	[WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
596 	[WM_ADSP_FW_MISC] =     { .file = "misc" },
597 };
598 
599 struct wm_coeff_ctl {
600 	const char *name;
601 	const char *fw_name;
602 	/* Subname is needed to match with firmware */
603 	const char *subname;
604 	unsigned int subname_len;
605 	struct wm_adsp_alg_region alg_region;
606 	struct wm_adsp *dsp;
607 	unsigned int enabled:1;
608 	struct list_head list;
609 	void *cache;
610 	unsigned int offset;
611 	size_t len;
612 	unsigned int set:1;
613 	struct soc_bytes_ext bytes_ext;
614 	unsigned int flags;
615 	snd_ctl_elem_type_t type;
616 };
617 
618 static const char *wm_adsp_mem_region_name(unsigned int type)
619 {
620 	switch (type) {
621 	case WMFW_ADSP1_PM:
622 		return "PM";
623 	case WMFW_HALO_PM_PACKED:
624 		return "PM_PACKED";
625 	case WMFW_ADSP1_DM:
626 		return "DM";
627 	case WMFW_ADSP2_XM:
628 		return "XM";
629 	case WMFW_HALO_XM_PACKED:
630 		return "XM_PACKED";
631 	case WMFW_ADSP2_YM:
632 		return "YM";
633 	case WMFW_HALO_YM_PACKED:
634 		return "YM_PACKED";
635 	case WMFW_ADSP1_ZM:
636 		return "ZM";
637 	default:
638 		return NULL;
639 	}
640 }
641 
642 #ifdef CONFIG_DEBUG_FS
643 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
644 {
645 	char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
646 
647 	kfree(dsp->wmfw_file_name);
648 	dsp->wmfw_file_name = tmp;
649 }
650 
651 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
652 {
653 	char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
654 
655 	kfree(dsp->bin_file_name);
656 	dsp->bin_file_name = tmp;
657 }
658 
659 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
660 {
661 	kfree(dsp->wmfw_file_name);
662 	kfree(dsp->bin_file_name);
663 	dsp->wmfw_file_name = NULL;
664 	dsp->bin_file_name = NULL;
665 }
666 
667 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
668 					 char __user *user_buf,
669 					 size_t count, loff_t *ppos)
670 {
671 	struct wm_adsp *dsp = file->private_data;
672 	ssize_t ret;
673 
674 	mutex_lock(&dsp->pwr_lock);
675 
676 	if (!dsp->wmfw_file_name || !dsp->booted)
677 		ret = 0;
678 	else
679 		ret = simple_read_from_buffer(user_buf, count, ppos,
680 					      dsp->wmfw_file_name,
681 					      strlen(dsp->wmfw_file_name));
682 
683 	mutex_unlock(&dsp->pwr_lock);
684 	return ret;
685 }
686 
687 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
688 					char __user *user_buf,
689 					size_t count, loff_t *ppos)
690 {
691 	struct wm_adsp *dsp = file->private_data;
692 	ssize_t ret;
693 
694 	mutex_lock(&dsp->pwr_lock);
695 
696 	if (!dsp->bin_file_name || !dsp->booted)
697 		ret = 0;
698 	else
699 		ret = simple_read_from_buffer(user_buf, count, ppos,
700 					      dsp->bin_file_name,
701 					      strlen(dsp->bin_file_name));
702 
703 	mutex_unlock(&dsp->pwr_lock);
704 	return ret;
705 }
706 
707 static const struct {
708 	const char *name;
709 	const struct file_operations fops;
710 } wm_adsp_debugfs_fops[] = {
711 	{
712 		.name = "wmfw_file_name",
713 		.fops = {
714 			.open = simple_open,
715 			.read = wm_adsp_debugfs_wmfw_read,
716 		},
717 	},
718 	{
719 		.name = "bin_file_name",
720 		.fops = {
721 			.open = simple_open,
722 			.read = wm_adsp_debugfs_bin_read,
723 		},
724 	},
725 };
726 
727 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
728 				  struct snd_soc_component *component)
729 {
730 	struct dentry *root = NULL;
731 	int i;
732 
733 	root = debugfs_create_dir(dsp->name, component->debugfs_root);
734 
735 	debugfs_create_bool("booted", 0444, root, &dsp->booted);
736 	debugfs_create_bool("running", 0444, root, &dsp->running);
737 	debugfs_create_x32("fw_id", 0444, root, &dsp->fw_id);
738 	debugfs_create_x32("fw_version", 0444, root, &dsp->fw_id_version);
739 
740 	for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i)
741 		debugfs_create_file(wm_adsp_debugfs_fops[i].name, 0444, root,
742 				    dsp, &wm_adsp_debugfs_fops[i].fops);
743 
744 	dsp->debugfs_root = root;
745 }
746 
747 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
748 {
749 	wm_adsp_debugfs_clear(dsp);
750 	debugfs_remove_recursive(dsp->debugfs_root);
751 	dsp->debugfs_root = NULL;
752 }
753 #else
754 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
755 					 struct snd_soc_component *component)
756 {
757 }
758 
759 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
760 {
761 }
762 
763 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
764 						 const char *s)
765 {
766 }
767 
768 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
769 						const char *s)
770 {
771 }
772 
773 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
774 {
775 }
776 #endif
777 
778 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
779 		   struct snd_ctl_elem_value *ucontrol)
780 {
781 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
782 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
783 	struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
784 
785 	ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
786 
787 	return 0;
788 }
789 EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
790 
791 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
792 		   struct snd_ctl_elem_value *ucontrol)
793 {
794 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
795 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
796 	struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
797 	int ret = 0;
798 
799 	if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
800 		return 0;
801 
802 	if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
803 		return -EINVAL;
804 
805 	mutex_lock(&dsp[e->shift_l].pwr_lock);
806 
807 	if (dsp[e->shift_l].booted || !list_empty(&dsp[e->shift_l].compr_list))
808 		ret = -EBUSY;
809 	else
810 		dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
811 
812 	mutex_unlock(&dsp[e->shift_l].pwr_lock);
813 
814 	return ret;
815 }
816 EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
817 
818 const struct soc_enum wm_adsp_fw_enum[] = {
819 	SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
820 	SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
821 	SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
822 	SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
823 	SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
824 	SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
825 	SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
826 };
827 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
828 
829 static const struct wm_adsp_region *wm_adsp_find_region(struct wm_adsp *dsp,
830 							int type)
831 {
832 	int i;
833 
834 	for (i = 0; i < dsp->num_mems; i++)
835 		if (dsp->mem[i].type == type)
836 			return &dsp->mem[i];
837 
838 	return NULL;
839 }
840 
841 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
842 					  unsigned int offset)
843 {
844 	switch (mem->type) {
845 	case WMFW_ADSP1_PM:
846 		return mem->base + (offset * 3);
847 	case WMFW_ADSP1_DM:
848 	case WMFW_ADSP2_XM:
849 	case WMFW_ADSP2_YM:
850 	case WMFW_ADSP1_ZM:
851 		return mem->base + (offset * 2);
852 	default:
853 		WARN(1, "Unknown memory region type");
854 		return offset;
855 	}
856 }
857 
858 static unsigned int wm_halo_region_to_reg(struct wm_adsp_region const *mem,
859 					  unsigned int offset)
860 {
861 	switch (mem->type) {
862 	case WMFW_ADSP2_XM:
863 	case WMFW_ADSP2_YM:
864 		return mem->base + (offset * 4);
865 	case WMFW_HALO_XM_PACKED:
866 	case WMFW_HALO_YM_PACKED:
867 		return (mem->base + (offset * 3)) & ~0x3;
868 	case WMFW_HALO_PM_PACKED:
869 		return mem->base + (offset * 5);
870 	default:
871 		WARN(1, "Unknown memory region type");
872 		return offset;
873 	}
874 }
875 
876 static void wm_adsp_read_fw_status(struct wm_adsp *dsp,
877 				   int noffs, unsigned int *offs)
878 {
879 	unsigned int i;
880 	int ret;
881 
882 	for (i = 0; i < noffs; ++i) {
883 		ret = regmap_read(dsp->regmap, dsp->base + offs[i], &offs[i]);
884 		if (ret) {
885 			adsp_err(dsp, "Failed to read SCRATCH%u: %d\n", i, ret);
886 			return;
887 		}
888 	}
889 }
890 
891 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
892 {
893 	unsigned int offs[] = {
894 		ADSP2_SCRATCH0, ADSP2_SCRATCH1, ADSP2_SCRATCH2, ADSP2_SCRATCH3,
895 	};
896 
897 	wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
898 
899 	adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
900 		 offs[0], offs[1], offs[2], offs[3]);
901 }
902 
903 static void wm_adsp2v2_show_fw_status(struct wm_adsp *dsp)
904 {
905 	unsigned int offs[] = { ADSP2V2_SCRATCH0_1, ADSP2V2_SCRATCH2_3 };
906 
907 	wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
908 
909 	adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
910 		 offs[0] & 0xFFFF, offs[0] >> 16,
911 		 offs[1] & 0xFFFF, offs[1] >> 16);
912 }
913 
914 static void wm_halo_show_fw_status(struct wm_adsp *dsp)
915 {
916 	unsigned int offs[] = {
917 		HALO_SCRATCH1, HALO_SCRATCH2, HALO_SCRATCH3, HALO_SCRATCH4,
918 	};
919 
920 	wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
921 
922 	adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
923 		 offs[0], offs[1], offs[2], offs[3]);
924 }
925 
926 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
927 {
928 	return container_of(ext, struct wm_coeff_ctl, bytes_ext);
929 }
930 
931 static int wm_coeff_base_reg(struct wm_coeff_ctl *ctl, unsigned int *reg)
932 {
933 	const struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
934 	struct wm_adsp *dsp = ctl->dsp;
935 	const struct wm_adsp_region *mem;
936 
937 	mem = wm_adsp_find_region(dsp, alg_region->type);
938 	if (!mem) {
939 		adsp_err(dsp, "No base for region %x\n",
940 			 alg_region->type);
941 		return -EINVAL;
942 	}
943 
944 	*reg = dsp->ops->region_to_reg(mem, ctl->alg_region.base + ctl->offset);
945 
946 	return 0;
947 }
948 
949 static int wm_coeff_info(struct snd_kcontrol *kctl,
950 			 struct snd_ctl_elem_info *uinfo)
951 {
952 	struct soc_bytes_ext *bytes_ext =
953 		(struct soc_bytes_ext *)kctl->private_value;
954 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
955 
956 	switch (ctl->type) {
957 	case WMFW_CTL_TYPE_ACKED:
958 		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
959 		uinfo->value.integer.min = WM_ADSP_ACKED_CTL_MIN_VALUE;
960 		uinfo->value.integer.max = WM_ADSP_ACKED_CTL_MAX_VALUE;
961 		uinfo->value.integer.step = 1;
962 		uinfo->count = 1;
963 		break;
964 	default:
965 		uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
966 		uinfo->count = ctl->len;
967 		break;
968 	}
969 
970 	return 0;
971 }
972 
973 static int wm_coeff_write_acked_control(struct wm_coeff_ctl *ctl,
974 					unsigned int event_id)
975 {
976 	struct wm_adsp *dsp = ctl->dsp;
977 	__be32 val = cpu_to_be32(event_id);
978 	unsigned int reg;
979 	int i, ret;
980 
981 	ret = wm_coeff_base_reg(ctl, &reg);
982 	if (ret)
983 		return ret;
984 
985 	adsp_dbg(dsp, "Sending 0x%x to acked control alg 0x%x %s:0x%x\n",
986 		 event_id, ctl->alg_region.alg,
987 		 wm_adsp_mem_region_name(ctl->alg_region.type), ctl->offset);
988 
989 	ret = regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
990 	if (ret) {
991 		adsp_err(dsp, "Failed to write %x: %d\n", reg, ret);
992 		return ret;
993 	}
994 
995 	/*
996 	 * Poll for ack, we initially poll at ~1ms intervals for firmwares
997 	 * that respond quickly, then go to ~10ms polls. A firmware is unlikely
998 	 * to ack instantly so we do the first 1ms delay before reading the
999 	 * control to avoid a pointless bus transaction
1000 	 */
1001 	for (i = 0; i < WM_ADSP_ACKED_CTL_TIMEOUT_MS;) {
1002 		switch (i) {
1003 		case 0 ... WM_ADSP_ACKED_CTL_N_QUICKPOLLS - 1:
1004 			usleep_range(1000, 2000);
1005 			i++;
1006 			break;
1007 		default:
1008 			usleep_range(10000, 20000);
1009 			i += 10;
1010 			break;
1011 		}
1012 
1013 		ret = regmap_raw_read(dsp->regmap, reg, &val, sizeof(val));
1014 		if (ret) {
1015 			adsp_err(dsp, "Failed to read %x: %d\n", reg, ret);
1016 			return ret;
1017 		}
1018 
1019 		if (val == 0) {
1020 			adsp_dbg(dsp, "Acked control ACKED at poll %u\n", i);
1021 			return 0;
1022 		}
1023 	}
1024 
1025 	adsp_warn(dsp, "Acked control @0x%x alg:0x%x %s:0x%x timed out\n",
1026 		  reg, ctl->alg_region.alg,
1027 		  wm_adsp_mem_region_name(ctl->alg_region.type),
1028 		  ctl->offset);
1029 
1030 	return -ETIMEDOUT;
1031 }
1032 
1033 static int wm_coeff_write_ctrl_raw(struct wm_coeff_ctl *ctl,
1034 				   const void *buf, size_t len)
1035 {
1036 	struct wm_adsp *dsp = ctl->dsp;
1037 	void *scratch;
1038 	int ret;
1039 	unsigned int reg;
1040 
1041 	ret = wm_coeff_base_reg(ctl, &reg);
1042 	if (ret)
1043 		return ret;
1044 
1045 	scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
1046 	if (!scratch)
1047 		return -ENOMEM;
1048 
1049 	ret = regmap_raw_write(dsp->regmap, reg, scratch,
1050 			       len);
1051 	if (ret) {
1052 		adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
1053 			 len, reg, ret);
1054 		kfree(scratch);
1055 		return ret;
1056 	}
1057 	adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
1058 
1059 	kfree(scratch);
1060 
1061 	return 0;
1062 }
1063 
1064 static int wm_coeff_write_ctrl(struct wm_coeff_ctl *ctl,
1065 			       const void *buf, size_t len)
1066 {
1067 	int ret = 0;
1068 
1069 	if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1070 		ret = -EPERM;
1071 	else if (buf != ctl->cache)
1072 		memcpy(ctl->cache, buf, len);
1073 
1074 	ctl->set = 1;
1075 	if (ctl->enabled && ctl->dsp->running)
1076 		ret = wm_coeff_write_ctrl_raw(ctl, buf, len);
1077 
1078 	return ret;
1079 }
1080 
1081 static int wm_coeff_put(struct snd_kcontrol *kctl,
1082 			struct snd_ctl_elem_value *ucontrol)
1083 {
1084 	struct soc_bytes_ext *bytes_ext =
1085 		(struct soc_bytes_ext *)kctl->private_value;
1086 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1087 	char *p = ucontrol->value.bytes.data;
1088 	int ret = 0;
1089 
1090 	mutex_lock(&ctl->dsp->pwr_lock);
1091 	ret = wm_coeff_write_ctrl(ctl, p, ctl->len);
1092 	mutex_unlock(&ctl->dsp->pwr_lock);
1093 
1094 	return ret;
1095 }
1096 
1097 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
1098 			    const unsigned int __user *bytes, unsigned int size)
1099 {
1100 	struct soc_bytes_ext *bytes_ext =
1101 		(struct soc_bytes_ext *)kctl->private_value;
1102 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1103 	int ret = 0;
1104 
1105 	mutex_lock(&ctl->dsp->pwr_lock);
1106 
1107 	if (copy_from_user(ctl->cache, bytes, size))
1108 		ret = -EFAULT;
1109 	else
1110 		ret = wm_coeff_write_ctrl(ctl, ctl->cache, size);
1111 
1112 	mutex_unlock(&ctl->dsp->pwr_lock);
1113 
1114 	return ret;
1115 }
1116 
1117 static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
1118 			      struct snd_ctl_elem_value *ucontrol)
1119 {
1120 	struct soc_bytes_ext *bytes_ext =
1121 		(struct soc_bytes_ext *)kctl->private_value;
1122 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1123 	unsigned int val = ucontrol->value.integer.value[0];
1124 	int ret;
1125 
1126 	if (val == 0)
1127 		return 0;	/* 0 means no event */
1128 
1129 	mutex_lock(&ctl->dsp->pwr_lock);
1130 
1131 	if (ctl->enabled && ctl->dsp->running)
1132 		ret = wm_coeff_write_acked_control(ctl, val);
1133 	else
1134 		ret = -EPERM;
1135 
1136 	mutex_unlock(&ctl->dsp->pwr_lock);
1137 
1138 	return ret;
1139 }
1140 
1141 static int wm_coeff_read_ctrl_raw(struct wm_coeff_ctl *ctl,
1142 				  void *buf, size_t len)
1143 {
1144 	struct wm_adsp *dsp = ctl->dsp;
1145 	void *scratch;
1146 	int ret;
1147 	unsigned int reg;
1148 
1149 	ret = wm_coeff_base_reg(ctl, &reg);
1150 	if (ret)
1151 		return ret;
1152 
1153 	scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
1154 	if (!scratch)
1155 		return -ENOMEM;
1156 
1157 	ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
1158 	if (ret) {
1159 		adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
1160 			 len, reg, ret);
1161 		kfree(scratch);
1162 		return ret;
1163 	}
1164 	adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
1165 
1166 	memcpy(buf, scratch, len);
1167 	kfree(scratch);
1168 
1169 	return 0;
1170 }
1171 
1172 static int wm_coeff_read_ctrl(struct wm_coeff_ctl *ctl, void *buf, size_t len)
1173 {
1174 	int ret = 0;
1175 
1176 	if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
1177 		if (ctl->enabled && ctl->dsp->running)
1178 			return wm_coeff_read_ctrl_raw(ctl, buf, len);
1179 		else
1180 			return -EPERM;
1181 	} else {
1182 		if (!ctl->flags && ctl->enabled && ctl->dsp->running)
1183 			ret = wm_coeff_read_ctrl_raw(ctl, ctl->cache, ctl->len);
1184 
1185 		if (buf != ctl->cache)
1186 			memcpy(buf, ctl->cache, len);
1187 	}
1188 
1189 	return ret;
1190 }
1191 
1192 static int wm_coeff_get(struct snd_kcontrol *kctl,
1193 			struct snd_ctl_elem_value *ucontrol)
1194 {
1195 	struct soc_bytes_ext *bytes_ext =
1196 		(struct soc_bytes_ext *)kctl->private_value;
1197 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1198 	char *p = ucontrol->value.bytes.data;
1199 	int ret;
1200 
1201 	mutex_lock(&ctl->dsp->pwr_lock);
1202 	ret = wm_coeff_read_ctrl(ctl, p, ctl->len);
1203 	mutex_unlock(&ctl->dsp->pwr_lock);
1204 
1205 	return ret;
1206 }
1207 
1208 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
1209 			    unsigned int __user *bytes, unsigned int size)
1210 {
1211 	struct soc_bytes_ext *bytes_ext =
1212 		(struct soc_bytes_ext *)kctl->private_value;
1213 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
1214 	int ret = 0;
1215 
1216 	mutex_lock(&ctl->dsp->pwr_lock);
1217 
1218 	ret = wm_coeff_read_ctrl(ctl, ctl->cache, size);
1219 
1220 	if (!ret && copy_to_user(bytes, ctl->cache, size))
1221 		ret = -EFAULT;
1222 
1223 	mutex_unlock(&ctl->dsp->pwr_lock);
1224 
1225 	return ret;
1226 }
1227 
1228 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
1229 			      struct snd_ctl_elem_value *ucontrol)
1230 {
1231 	/*
1232 	 * Although it's not useful to read an acked control, we must satisfy
1233 	 * user-side assumptions that all controls are readable and that a
1234 	 * write of the same value should be filtered out (it's valid to send
1235 	 * the same event number again to the firmware). We therefore return 0,
1236 	 * meaning "no event" so valid event numbers will always be a change
1237 	 */
1238 	ucontrol->value.integer.value[0] = 0;
1239 
1240 	return 0;
1241 }
1242 
1243 struct wmfw_ctl_work {
1244 	struct wm_adsp *dsp;
1245 	struct wm_coeff_ctl *ctl;
1246 	struct work_struct work;
1247 };
1248 
1249 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
1250 {
1251 	unsigned int out, rd, wr, vol;
1252 
1253 	if (len > ADSP_MAX_STD_CTRL_SIZE) {
1254 		rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1255 		wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
1256 		vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
1257 
1258 		out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1259 	} else {
1260 		rd = SNDRV_CTL_ELEM_ACCESS_READ;
1261 		wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
1262 		vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
1263 
1264 		out = 0;
1265 	}
1266 
1267 	if (in) {
1268 		out |= rd;
1269 		if (in & WMFW_CTL_FLAG_WRITEABLE)
1270 			out |= wr;
1271 		if (in & WMFW_CTL_FLAG_VOLATILE)
1272 			out |= vol;
1273 	} else {
1274 		out |= rd | wr | vol;
1275 	}
1276 
1277 	return out;
1278 }
1279 
1280 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
1281 {
1282 	struct snd_kcontrol_new *kcontrol;
1283 	int ret;
1284 
1285 	if (!ctl || !ctl->name)
1286 		return -EINVAL;
1287 
1288 	kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
1289 	if (!kcontrol)
1290 		return -ENOMEM;
1291 
1292 	kcontrol->name = ctl->name;
1293 	kcontrol->info = wm_coeff_info;
1294 	kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1295 	kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
1296 	kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
1297 	kcontrol->access = wmfw_convert_flags(ctl->flags, ctl->len);
1298 
1299 	switch (ctl->type) {
1300 	case WMFW_CTL_TYPE_ACKED:
1301 		kcontrol->get = wm_coeff_get_acked;
1302 		kcontrol->put = wm_coeff_put_acked;
1303 		break;
1304 	default:
1305 		if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1306 			ctl->bytes_ext.max = ctl->len;
1307 			ctl->bytes_ext.get = wm_coeff_tlv_get;
1308 			ctl->bytes_ext.put = wm_coeff_tlv_put;
1309 		} else {
1310 			kcontrol->get = wm_coeff_get;
1311 			kcontrol->put = wm_coeff_put;
1312 		}
1313 		break;
1314 	}
1315 
1316 	ret = snd_soc_add_component_controls(dsp->component, kcontrol, 1);
1317 	if (ret < 0)
1318 		goto err_kcontrol;
1319 
1320 	kfree(kcontrol);
1321 
1322 	return 0;
1323 
1324 err_kcontrol:
1325 	kfree(kcontrol);
1326 	return ret;
1327 }
1328 
1329 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
1330 {
1331 	struct wm_coeff_ctl *ctl;
1332 	int ret;
1333 
1334 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
1335 		if (!ctl->enabled || ctl->set)
1336 			continue;
1337 		if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1338 			continue;
1339 
1340 		/*
1341 		 * For readable controls populate the cache from the DSP memory.
1342 		 * For non-readable controls the cache was zero-filled when
1343 		 * created so we don't need to do anything.
1344 		 */
1345 		if (!ctl->flags || (ctl->flags & WMFW_CTL_FLAG_READABLE)) {
1346 			ret = wm_coeff_read_ctrl_raw(ctl, ctl->cache, ctl->len);
1347 			if (ret < 0)
1348 				return ret;
1349 		}
1350 	}
1351 
1352 	return 0;
1353 }
1354 
1355 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
1356 {
1357 	struct wm_coeff_ctl *ctl;
1358 	int ret;
1359 
1360 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
1361 		if (!ctl->enabled)
1362 			continue;
1363 		if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
1364 			ret = wm_coeff_write_ctrl_raw(ctl, ctl->cache,
1365 						      ctl->len);
1366 			if (ret < 0)
1367 				return ret;
1368 		}
1369 	}
1370 
1371 	return 0;
1372 }
1373 
1374 static void wm_adsp_signal_event_controls(struct wm_adsp *dsp,
1375 					  unsigned int event)
1376 {
1377 	struct wm_coeff_ctl *ctl;
1378 	int ret;
1379 
1380 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
1381 		if (ctl->type != WMFW_CTL_TYPE_HOSTEVENT)
1382 			continue;
1383 
1384 		if (!ctl->enabled)
1385 			continue;
1386 
1387 		ret = wm_coeff_write_acked_control(ctl, event);
1388 		if (ret)
1389 			adsp_warn(dsp,
1390 				  "Failed to send 0x%x event to alg 0x%x (%d)\n",
1391 				  event, ctl->alg_region.alg, ret);
1392 	}
1393 }
1394 
1395 static void wm_adsp_ctl_work(struct work_struct *work)
1396 {
1397 	struct wmfw_ctl_work *ctl_work = container_of(work,
1398 						      struct wmfw_ctl_work,
1399 						      work);
1400 
1401 	wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
1402 	kfree(ctl_work);
1403 }
1404 
1405 static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
1406 {
1407 	kfree(ctl->cache);
1408 	kfree(ctl->name);
1409 	kfree(ctl->subname);
1410 	kfree(ctl);
1411 }
1412 
1413 static int wm_adsp_create_control(struct wm_adsp *dsp,
1414 				  const struct wm_adsp_alg_region *alg_region,
1415 				  unsigned int offset, unsigned int len,
1416 				  const char *subname, unsigned int subname_len,
1417 				  unsigned int flags, snd_ctl_elem_type_t type)
1418 {
1419 	struct wm_coeff_ctl *ctl;
1420 	struct wmfw_ctl_work *ctl_work;
1421 	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1422 	const char *region_name;
1423 	int ret;
1424 
1425 	region_name = wm_adsp_mem_region_name(alg_region->type);
1426 	if (!region_name) {
1427 		adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
1428 		return -EINVAL;
1429 	}
1430 
1431 	switch (dsp->fw_ver) {
1432 	case 0:
1433 	case 1:
1434 		snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s %x",
1435 			 dsp->name, region_name, alg_region->alg);
1436 		subname = NULL; /* don't append subname */
1437 		break;
1438 	case 2:
1439 		ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1440 				"%s%c %.12s %x", dsp->name, *region_name,
1441 				wm_adsp_fw_text[dsp->fw], alg_region->alg);
1442 		break;
1443 	default:
1444 		ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1445 				"%s %.12s %x", dsp->name,
1446 				wm_adsp_fw_text[dsp->fw], alg_region->alg);
1447 		break;
1448 	}
1449 
1450 	if (subname) {
1451 		int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
1452 		int skip = 0;
1453 
1454 		if (dsp->component->name_prefix)
1455 			avail -= strlen(dsp->component->name_prefix) + 1;
1456 
1457 		/* Truncate the subname from the start if it is too long */
1458 		if (subname_len > avail)
1459 			skip = subname_len - avail;
1460 
1461 		snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
1462 			 " %.*s", subname_len - skip, subname + skip);
1463 	}
1464 
1465 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
1466 		if (!strcmp(ctl->name, name)) {
1467 			if (!ctl->enabled)
1468 				ctl->enabled = 1;
1469 			return 0;
1470 		}
1471 	}
1472 
1473 	ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1474 	if (!ctl)
1475 		return -ENOMEM;
1476 	ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1477 	ctl->alg_region = *alg_region;
1478 	ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1479 	if (!ctl->name) {
1480 		ret = -ENOMEM;
1481 		goto err_ctl;
1482 	}
1483 	if (subname) {
1484 		ctl->subname_len = subname_len;
1485 		ctl->subname = kmemdup(subname,
1486 				       strlen(subname) + 1, GFP_KERNEL);
1487 		if (!ctl->subname) {
1488 			ret = -ENOMEM;
1489 			goto err_ctl_name;
1490 		}
1491 	}
1492 	ctl->enabled = 1;
1493 	ctl->set = 0;
1494 	ctl->dsp = dsp;
1495 
1496 	ctl->flags = flags;
1497 	ctl->type = type;
1498 	ctl->offset = offset;
1499 	ctl->len = len;
1500 	ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1501 	if (!ctl->cache) {
1502 		ret = -ENOMEM;
1503 		goto err_ctl_subname;
1504 	}
1505 
1506 	list_add(&ctl->list, &dsp->ctl_list);
1507 
1508 	if (flags & WMFW_CTL_FLAG_SYS)
1509 		return 0;
1510 
1511 	ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1512 	if (!ctl_work) {
1513 		ret = -ENOMEM;
1514 		goto err_list_del;
1515 	}
1516 
1517 	ctl_work->dsp = dsp;
1518 	ctl_work->ctl = ctl;
1519 	INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1520 	schedule_work(&ctl_work->work);
1521 
1522 	return 0;
1523 
1524 err_list_del:
1525 	list_del(&ctl->list);
1526 	kfree(ctl->cache);
1527 err_ctl_subname:
1528 	kfree(ctl->subname);
1529 err_ctl_name:
1530 	kfree(ctl->name);
1531 err_ctl:
1532 	kfree(ctl);
1533 
1534 	return ret;
1535 }
1536 
1537 struct wm_coeff_parsed_alg {
1538 	int id;
1539 	const u8 *name;
1540 	int name_len;
1541 	int ncoeff;
1542 };
1543 
1544 struct wm_coeff_parsed_coeff {
1545 	int offset;
1546 	int mem_type;
1547 	const u8 *name;
1548 	int name_len;
1549 	snd_ctl_elem_type_t ctl_type;
1550 	int flags;
1551 	int len;
1552 };
1553 
1554 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1555 {
1556 	int length;
1557 
1558 	switch (bytes) {
1559 	case 1:
1560 		length = **pos;
1561 		break;
1562 	case 2:
1563 		length = le16_to_cpu(*((__le16 *)*pos));
1564 		break;
1565 	default:
1566 		return 0;
1567 	}
1568 
1569 	if (str)
1570 		*str = *pos + bytes;
1571 
1572 	*pos += ((length + bytes) + 3) & ~0x03;
1573 
1574 	return length;
1575 }
1576 
1577 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1578 {
1579 	int val = 0;
1580 
1581 	switch (bytes) {
1582 	case 2:
1583 		val = le16_to_cpu(*((__le16 *)*pos));
1584 		break;
1585 	case 4:
1586 		val = le32_to_cpu(*((__le32 *)*pos));
1587 		break;
1588 	default:
1589 		break;
1590 	}
1591 
1592 	*pos += bytes;
1593 
1594 	return val;
1595 }
1596 
1597 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1598 				      struct wm_coeff_parsed_alg *blk)
1599 {
1600 	const struct wmfw_adsp_alg_data *raw;
1601 
1602 	switch (dsp->fw_ver) {
1603 	case 0:
1604 	case 1:
1605 		raw = (const struct wmfw_adsp_alg_data *)*data;
1606 		*data = raw->data;
1607 
1608 		blk->id = le32_to_cpu(raw->id);
1609 		blk->name = raw->name;
1610 		blk->name_len = strlen(raw->name);
1611 		blk->ncoeff = le32_to_cpu(raw->ncoeff);
1612 		break;
1613 	default:
1614 		blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1615 		blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1616 						      &blk->name);
1617 		wm_coeff_parse_string(sizeof(u16), data, NULL);
1618 		blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1619 		break;
1620 	}
1621 
1622 	adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1623 	adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1624 	adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1625 }
1626 
1627 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1628 					struct wm_coeff_parsed_coeff *blk)
1629 {
1630 	const struct wmfw_adsp_coeff_data *raw;
1631 	const u8 *tmp;
1632 	int length;
1633 
1634 	switch (dsp->fw_ver) {
1635 	case 0:
1636 	case 1:
1637 		raw = (const struct wmfw_adsp_coeff_data *)*data;
1638 		*data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1639 
1640 		blk->offset = le16_to_cpu(raw->hdr.offset);
1641 		blk->mem_type = le16_to_cpu(raw->hdr.type);
1642 		blk->name = raw->name;
1643 		blk->name_len = strlen(raw->name);
1644 		blk->ctl_type = (__force snd_ctl_elem_type_t)le16_to_cpu(raw->ctl_type);
1645 		blk->flags = le16_to_cpu(raw->flags);
1646 		blk->len = le32_to_cpu(raw->len);
1647 		break;
1648 	default:
1649 		tmp = *data;
1650 		blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1651 		blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1652 		length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1653 		blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1654 						      &blk->name);
1655 		wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1656 		wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1657 		blk->ctl_type =
1658 			(__force snd_ctl_elem_type_t)wm_coeff_parse_int(sizeof(raw->ctl_type),
1659 									&tmp);
1660 		blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1661 		blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1662 
1663 		*data = *data + sizeof(raw->hdr) + length;
1664 		break;
1665 	}
1666 
1667 	adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1668 	adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1669 	adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1670 	adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1671 	adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1672 	adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1673 }
1674 
1675 static int wm_adsp_check_coeff_flags(struct wm_adsp *dsp,
1676 				const struct wm_coeff_parsed_coeff *coeff_blk,
1677 				unsigned int f_required,
1678 				unsigned int f_illegal)
1679 {
1680 	if ((coeff_blk->flags & f_illegal) ||
1681 	    ((coeff_blk->flags & f_required) != f_required)) {
1682 		adsp_err(dsp, "Illegal flags 0x%x for control type 0x%x\n",
1683 			 coeff_blk->flags, coeff_blk->ctl_type);
1684 		return -EINVAL;
1685 	}
1686 
1687 	return 0;
1688 }
1689 
1690 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1691 			       const struct wmfw_region *region)
1692 {
1693 	struct wm_adsp_alg_region alg_region = {};
1694 	struct wm_coeff_parsed_alg alg_blk;
1695 	struct wm_coeff_parsed_coeff coeff_blk;
1696 	const u8 *data = region->data;
1697 	int i, ret;
1698 
1699 	wm_coeff_parse_alg(dsp, &data, &alg_blk);
1700 	for (i = 0; i < alg_blk.ncoeff; i++) {
1701 		wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1702 
1703 		switch (coeff_blk.ctl_type) {
1704 		case SNDRV_CTL_ELEM_TYPE_BYTES:
1705 			break;
1706 		case WMFW_CTL_TYPE_ACKED:
1707 			if (coeff_blk.flags & WMFW_CTL_FLAG_SYS)
1708 				continue;	/* ignore */
1709 
1710 			ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
1711 						WMFW_CTL_FLAG_VOLATILE |
1712 						WMFW_CTL_FLAG_WRITEABLE |
1713 						WMFW_CTL_FLAG_READABLE,
1714 						0);
1715 			if (ret)
1716 				return -EINVAL;
1717 			break;
1718 		case WMFW_CTL_TYPE_HOSTEVENT:
1719 			ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
1720 						WMFW_CTL_FLAG_SYS |
1721 						WMFW_CTL_FLAG_VOLATILE |
1722 						WMFW_CTL_FLAG_WRITEABLE |
1723 						WMFW_CTL_FLAG_READABLE,
1724 						0);
1725 			if (ret)
1726 				return -EINVAL;
1727 			break;
1728 		case WMFW_CTL_TYPE_HOST_BUFFER:
1729 			ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
1730 						WMFW_CTL_FLAG_SYS |
1731 						WMFW_CTL_FLAG_VOLATILE |
1732 						WMFW_CTL_FLAG_READABLE,
1733 						0);
1734 			if (ret)
1735 				return -EINVAL;
1736 			break;
1737 		default:
1738 			adsp_err(dsp, "Unknown control type: %d\n",
1739 				 coeff_blk.ctl_type);
1740 			return -EINVAL;
1741 		}
1742 
1743 		alg_region.type = coeff_blk.mem_type;
1744 		alg_region.alg = alg_blk.id;
1745 
1746 		ret = wm_adsp_create_control(dsp, &alg_region,
1747 					     coeff_blk.offset,
1748 					     coeff_blk.len,
1749 					     coeff_blk.name,
1750 					     coeff_blk.name_len,
1751 					     coeff_blk.flags,
1752 					     coeff_blk.ctl_type);
1753 		if (ret < 0)
1754 			adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1755 				 coeff_blk.name_len, coeff_blk.name, ret);
1756 	}
1757 
1758 	return 0;
1759 }
1760 
1761 static unsigned int wm_adsp1_parse_sizes(struct wm_adsp *dsp,
1762 					 const char * const file,
1763 					 unsigned int pos,
1764 					 const struct firmware *firmware)
1765 {
1766 	const struct wmfw_adsp1_sizes *adsp1_sizes;
1767 
1768 	adsp1_sizes = (void *)&firmware->data[pos];
1769 
1770 	adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n", file,
1771 		 le32_to_cpu(adsp1_sizes->dm), le32_to_cpu(adsp1_sizes->pm),
1772 		 le32_to_cpu(adsp1_sizes->zm));
1773 
1774 	return pos + sizeof(*adsp1_sizes);
1775 }
1776 
1777 static unsigned int wm_adsp2_parse_sizes(struct wm_adsp *dsp,
1778 					 const char * const file,
1779 					 unsigned int pos,
1780 					 const struct firmware *firmware)
1781 {
1782 	const struct wmfw_adsp2_sizes *adsp2_sizes;
1783 
1784 	adsp2_sizes = (void *)&firmware->data[pos];
1785 
1786 	adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n", file,
1787 		 le32_to_cpu(adsp2_sizes->xm), le32_to_cpu(adsp2_sizes->ym),
1788 		 le32_to_cpu(adsp2_sizes->pm), le32_to_cpu(adsp2_sizes->zm));
1789 
1790 	return pos + sizeof(*adsp2_sizes);
1791 }
1792 
1793 static bool wm_adsp_validate_version(struct wm_adsp *dsp, unsigned int version)
1794 {
1795 	switch (version) {
1796 	case 0:
1797 		adsp_warn(dsp, "Deprecated file format %d\n", version);
1798 		return true;
1799 	case 1:
1800 	case 2:
1801 		return true;
1802 	default:
1803 		return false;
1804 	}
1805 }
1806 
1807 static bool wm_halo_validate_version(struct wm_adsp *dsp, unsigned int version)
1808 {
1809 	switch (version) {
1810 	case 3:
1811 		return true;
1812 	default:
1813 		return false;
1814 	}
1815 }
1816 
1817 static int wm_adsp_load(struct wm_adsp *dsp)
1818 {
1819 	LIST_HEAD(buf_list);
1820 	const struct firmware *firmware;
1821 	struct regmap *regmap = dsp->regmap;
1822 	unsigned int pos = 0;
1823 	const struct wmfw_header *header;
1824 	const struct wmfw_adsp1_sizes *adsp1_sizes;
1825 	const struct wmfw_footer *footer;
1826 	const struct wmfw_region *region;
1827 	const struct wm_adsp_region *mem;
1828 	const char *region_name;
1829 	char *file, *text = NULL;
1830 	struct wm_adsp_buf *buf;
1831 	unsigned int reg;
1832 	int regions = 0;
1833 	int ret, offset, type;
1834 
1835 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1836 	if (file == NULL)
1837 		return -ENOMEM;
1838 
1839 	snprintf(file, PAGE_SIZE, "%s-%s-%s.wmfw", dsp->part, dsp->fwf_name,
1840 		 wm_adsp_fw[dsp->fw].file);
1841 	file[PAGE_SIZE - 1] = '\0';
1842 
1843 	ret = request_firmware(&firmware, file, dsp->dev);
1844 	if (ret != 0) {
1845 		adsp_err(dsp, "Failed to request '%s'\n", file);
1846 		goto out;
1847 	}
1848 	ret = -EINVAL;
1849 
1850 	pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1851 	if (pos >= firmware->size) {
1852 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
1853 			 file, firmware->size);
1854 		goto out_fw;
1855 	}
1856 
1857 	header = (void *)&firmware->data[0];
1858 
1859 	if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1860 		adsp_err(dsp, "%s: invalid magic\n", file);
1861 		goto out_fw;
1862 	}
1863 
1864 	if (!dsp->ops->validate_version(dsp, header->ver)) {
1865 		adsp_err(dsp, "%s: unknown file format %d\n",
1866 			 file, header->ver);
1867 		goto out_fw;
1868 	}
1869 
1870 	adsp_info(dsp, "Firmware version: %d\n", header->ver);
1871 	dsp->fw_ver = header->ver;
1872 
1873 	if (header->core != dsp->type) {
1874 		adsp_err(dsp, "%s: invalid core %d != %d\n",
1875 			 file, header->core, dsp->type);
1876 		goto out_fw;
1877 	}
1878 
1879 	pos = sizeof(*header);
1880 	pos = dsp->ops->parse_sizes(dsp, file, pos, firmware);
1881 
1882 	footer = (void *)&firmware->data[pos];
1883 	pos += sizeof(*footer);
1884 
1885 	if (le32_to_cpu(header->len) != pos) {
1886 		adsp_err(dsp, "%s: unexpected header length %d\n",
1887 			 file, le32_to_cpu(header->len));
1888 		goto out_fw;
1889 	}
1890 
1891 	adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1892 		 le64_to_cpu(footer->timestamp));
1893 
1894 	while (pos < firmware->size &&
1895 	       sizeof(*region) < firmware->size - pos) {
1896 		region = (void *)&(firmware->data[pos]);
1897 		region_name = "Unknown";
1898 		reg = 0;
1899 		text = NULL;
1900 		offset = le32_to_cpu(region->offset) & 0xffffff;
1901 		type = be32_to_cpu(region->type) & 0xff;
1902 
1903 		switch (type) {
1904 		case WMFW_NAME_TEXT:
1905 			region_name = "Firmware name";
1906 			text = kzalloc(le32_to_cpu(region->len) + 1,
1907 				       GFP_KERNEL);
1908 			break;
1909 		case WMFW_ALGORITHM_DATA:
1910 			region_name = "Algorithm";
1911 			ret = wm_adsp_parse_coeff(dsp, region);
1912 			if (ret != 0)
1913 				goto out_fw;
1914 			break;
1915 		case WMFW_INFO_TEXT:
1916 			region_name = "Information";
1917 			text = kzalloc(le32_to_cpu(region->len) + 1,
1918 				       GFP_KERNEL);
1919 			break;
1920 		case WMFW_ABSOLUTE:
1921 			region_name = "Absolute";
1922 			reg = offset;
1923 			break;
1924 		case WMFW_ADSP1_PM:
1925 		case WMFW_ADSP1_DM:
1926 		case WMFW_ADSP2_XM:
1927 		case WMFW_ADSP2_YM:
1928 		case WMFW_ADSP1_ZM:
1929 		case WMFW_HALO_PM_PACKED:
1930 		case WMFW_HALO_XM_PACKED:
1931 		case WMFW_HALO_YM_PACKED:
1932 			mem = wm_adsp_find_region(dsp, type);
1933 			if (!mem) {
1934 				adsp_err(dsp, "No region of type: %x\n", type);
1935 				ret = -EINVAL;
1936 				goto out_fw;
1937 			}
1938 
1939 			region_name = wm_adsp_mem_region_name(type);
1940 			reg = dsp->ops->region_to_reg(mem, offset);
1941 			break;
1942 		default:
1943 			adsp_warn(dsp,
1944 				  "%s.%d: Unknown region type %x at %d(%x)\n",
1945 				  file, regions, type, pos, pos);
1946 			break;
1947 		}
1948 
1949 		adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1950 			 regions, le32_to_cpu(region->len), offset,
1951 			 region_name);
1952 
1953 		if (le32_to_cpu(region->len) >
1954 		    firmware->size - pos - sizeof(*region)) {
1955 			adsp_err(dsp,
1956 				 "%s.%d: %s region len %d bytes exceeds file length %zu\n",
1957 				 file, regions, region_name,
1958 				 le32_to_cpu(region->len), firmware->size);
1959 			ret = -EINVAL;
1960 			goto out_fw;
1961 		}
1962 
1963 		if (text) {
1964 			memcpy(text, region->data, le32_to_cpu(region->len));
1965 			adsp_info(dsp, "%s: %s\n", file, text);
1966 			kfree(text);
1967 			text = NULL;
1968 		}
1969 
1970 		if (reg) {
1971 			buf = wm_adsp_buf_alloc(region->data,
1972 						le32_to_cpu(region->len),
1973 						&buf_list);
1974 			if (!buf) {
1975 				adsp_err(dsp, "Out of memory\n");
1976 				ret = -ENOMEM;
1977 				goto out_fw;
1978 			}
1979 
1980 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
1981 						     le32_to_cpu(region->len));
1982 			if (ret != 0) {
1983 				adsp_err(dsp,
1984 					"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1985 					file, regions,
1986 					le32_to_cpu(region->len), offset,
1987 					region_name, ret);
1988 				goto out_fw;
1989 			}
1990 		}
1991 
1992 		pos += le32_to_cpu(region->len) + sizeof(*region);
1993 		regions++;
1994 	}
1995 
1996 	ret = regmap_async_complete(regmap);
1997 	if (ret != 0) {
1998 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1999 		goto out_fw;
2000 	}
2001 
2002 	if (pos > firmware->size)
2003 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2004 			  file, regions, pos - firmware->size);
2005 
2006 	wm_adsp_debugfs_save_wmfwname(dsp, file);
2007 
2008 out_fw:
2009 	regmap_async_complete(regmap);
2010 	wm_adsp_buf_free(&buf_list);
2011 	release_firmware(firmware);
2012 	kfree(text);
2013 out:
2014 	kfree(file);
2015 
2016 	return ret;
2017 }
2018 
2019 /*
2020  * Find wm_coeff_ctl with input name as its subname
2021  * If not found, return NULL
2022  */
2023 static struct wm_coeff_ctl *wm_adsp_get_ctl(struct wm_adsp *dsp,
2024 					     const char *name, int type,
2025 					     unsigned int alg)
2026 {
2027 	struct wm_coeff_ctl *pos, *rslt = NULL;
2028 	const char *fw_txt = wm_adsp_fw_text[dsp->fw];
2029 
2030 	list_for_each_entry(pos, &dsp->ctl_list, list) {
2031 		if (!pos->subname)
2032 			continue;
2033 		if (strncmp(pos->subname, name, pos->subname_len) == 0 &&
2034 		    pos->fw_name == fw_txt &&
2035 		    pos->alg_region.alg == alg &&
2036 		    pos->alg_region.type == type) {
2037 			rslt = pos;
2038 			break;
2039 		}
2040 	}
2041 
2042 	return rslt;
2043 }
2044 
2045 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
2046 		      unsigned int alg, void *buf, size_t len)
2047 {
2048 	struct wm_coeff_ctl *ctl;
2049 	struct snd_kcontrol *kcontrol;
2050 	char ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
2051 	int ret;
2052 
2053 	ctl = wm_adsp_get_ctl(dsp, name, type, alg);
2054 	if (!ctl)
2055 		return -EINVAL;
2056 
2057 	if (len > ctl->len)
2058 		return -EINVAL;
2059 
2060 	ret = wm_coeff_write_ctrl(ctl, buf, len);
2061 	if (ret)
2062 		return ret;
2063 
2064 	if (ctl->flags & WMFW_CTL_FLAG_SYS)
2065 		return 0;
2066 
2067 	if (dsp->component->name_prefix)
2068 		snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s",
2069 			 dsp->component->name_prefix, ctl->name);
2070 	else
2071 		snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s",
2072 			 ctl->name);
2073 
2074 	kcontrol = snd_soc_card_get_kcontrol(dsp->component->card, ctl_name);
2075 	if (!kcontrol) {
2076 		adsp_err(dsp, "Can't find kcontrol %s\n", ctl_name);
2077 		return -EINVAL;
2078 	}
2079 
2080 	snd_ctl_notify(dsp->component->card->snd_card,
2081 		       SNDRV_CTL_EVENT_MASK_VALUE, &kcontrol->id);
2082 
2083 	return 0;
2084 }
2085 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
2086 
2087 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
2088 		     unsigned int alg, void *buf, size_t len)
2089 {
2090 	struct wm_coeff_ctl *ctl;
2091 
2092 	ctl = wm_adsp_get_ctl(dsp, name, type, alg);
2093 	if (!ctl)
2094 		return -EINVAL;
2095 
2096 	if (len > ctl->len)
2097 		return -EINVAL;
2098 
2099 	return wm_coeff_read_ctrl(ctl, buf, len);
2100 }
2101 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
2102 
2103 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
2104 				  const struct wm_adsp_alg_region *alg_region)
2105 {
2106 	struct wm_coeff_ctl *ctl;
2107 
2108 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
2109 		if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
2110 		    alg_region->alg == ctl->alg_region.alg &&
2111 		    alg_region->type == ctl->alg_region.type) {
2112 			ctl->alg_region.base = alg_region->base;
2113 		}
2114 	}
2115 }
2116 
2117 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
2118 			       const struct wm_adsp_region *mem,
2119 			       unsigned int pos, unsigned int len)
2120 {
2121 	void *alg;
2122 	unsigned int reg;
2123 	int ret;
2124 	__be32 val;
2125 
2126 	if (n_algs == 0) {
2127 		adsp_err(dsp, "No algorithms\n");
2128 		return ERR_PTR(-EINVAL);
2129 	}
2130 
2131 	if (n_algs > 1024) {
2132 		adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
2133 		return ERR_PTR(-EINVAL);
2134 	}
2135 
2136 	/* Read the terminator first to validate the length */
2137 	reg = dsp->ops->region_to_reg(mem, pos + len);
2138 
2139 	ret = regmap_raw_read(dsp->regmap, reg, &val, sizeof(val));
2140 	if (ret != 0) {
2141 		adsp_err(dsp, "Failed to read algorithm list end: %d\n",
2142 			ret);
2143 		return ERR_PTR(ret);
2144 	}
2145 
2146 	if (be32_to_cpu(val) != 0xbedead)
2147 		adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbedead\n",
2148 			  reg, be32_to_cpu(val));
2149 
2150 	/* Convert length from DSP words to bytes */
2151 	len *= sizeof(u32);
2152 
2153 	alg = kzalloc(len, GFP_KERNEL | GFP_DMA);
2154 	if (!alg)
2155 		return ERR_PTR(-ENOMEM);
2156 
2157 	reg = dsp->ops->region_to_reg(mem, pos);
2158 
2159 	ret = regmap_raw_read(dsp->regmap, reg, alg, len);
2160 	if (ret != 0) {
2161 		adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
2162 		kfree(alg);
2163 		return ERR_PTR(ret);
2164 	}
2165 
2166 	return alg;
2167 }
2168 
2169 static struct wm_adsp_alg_region *
2170 	wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
2171 {
2172 	struct wm_adsp_alg_region *alg_region;
2173 
2174 	list_for_each_entry(alg_region, &dsp->alg_regions, list) {
2175 		if (id == alg_region->alg && type == alg_region->type)
2176 			return alg_region;
2177 	}
2178 
2179 	return NULL;
2180 }
2181 
2182 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
2183 							int type, __be32 id,
2184 							__be32 base)
2185 {
2186 	struct wm_adsp_alg_region *alg_region;
2187 
2188 	alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
2189 	if (!alg_region)
2190 		return ERR_PTR(-ENOMEM);
2191 
2192 	alg_region->type = type;
2193 	alg_region->alg = be32_to_cpu(id);
2194 	alg_region->base = be32_to_cpu(base);
2195 
2196 	list_add_tail(&alg_region->list, &dsp->alg_regions);
2197 
2198 	if (dsp->fw_ver > 0)
2199 		wm_adsp_ctl_fixup_base(dsp, alg_region);
2200 
2201 	return alg_region;
2202 }
2203 
2204 static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
2205 {
2206 	struct wm_adsp_alg_region *alg_region;
2207 
2208 	while (!list_empty(&dsp->alg_regions)) {
2209 		alg_region = list_first_entry(&dsp->alg_regions,
2210 					      struct wm_adsp_alg_region,
2211 					      list);
2212 		list_del(&alg_region->list);
2213 		kfree(alg_region);
2214 	}
2215 }
2216 
2217 static void wmfw_parse_id_header(struct wm_adsp *dsp,
2218 				 struct wmfw_id_hdr *fw, int nalgs)
2219 {
2220 	dsp->fw_id = be32_to_cpu(fw->id);
2221 	dsp->fw_id_version = be32_to_cpu(fw->ver);
2222 
2223 	adsp_info(dsp, "Firmware: %x v%d.%d.%d, %d algorithms\n",
2224 		  dsp->fw_id, (dsp->fw_id_version & 0xff0000) >> 16,
2225 		  (dsp->fw_id_version & 0xff00) >> 8, dsp->fw_id_version & 0xff,
2226 		  nalgs);
2227 }
2228 
2229 static void wmfw_v3_parse_id_header(struct wm_adsp *dsp,
2230 				    struct wmfw_v3_id_hdr *fw, int nalgs)
2231 {
2232 	dsp->fw_id = be32_to_cpu(fw->id);
2233 	dsp->fw_id_version = be32_to_cpu(fw->ver);
2234 	dsp->fw_vendor_id = be32_to_cpu(fw->vendor_id);
2235 
2236 	adsp_info(dsp, "Firmware: %x vendor: 0x%x v%d.%d.%d, %d algorithms\n",
2237 		  dsp->fw_id, dsp->fw_vendor_id,
2238 		  (dsp->fw_id_version & 0xff0000) >> 16,
2239 		  (dsp->fw_id_version & 0xff00) >> 8, dsp->fw_id_version & 0xff,
2240 		  nalgs);
2241 }
2242 
2243 static int wm_adsp_create_regions(struct wm_adsp *dsp, __be32 id, int nregions,
2244 				const int *type, __be32 *base)
2245 {
2246 	struct wm_adsp_alg_region *alg_region;
2247 	int i;
2248 
2249 	for (i = 0; i < nregions; i++) {
2250 		alg_region = wm_adsp_create_region(dsp, type[i], id, base[i]);
2251 		if (IS_ERR(alg_region))
2252 			return PTR_ERR(alg_region);
2253 	}
2254 
2255 	return 0;
2256 }
2257 
2258 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
2259 {
2260 	struct wmfw_adsp1_id_hdr adsp1_id;
2261 	struct wmfw_adsp1_alg_hdr *adsp1_alg;
2262 	struct wm_adsp_alg_region *alg_region;
2263 	const struct wm_adsp_region *mem;
2264 	unsigned int pos, len;
2265 	size_t n_algs;
2266 	int i, ret;
2267 
2268 	mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
2269 	if (WARN_ON(!mem))
2270 		return -EINVAL;
2271 
2272 	ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
2273 			      sizeof(adsp1_id));
2274 	if (ret != 0) {
2275 		adsp_err(dsp, "Failed to read algorithm info: %d\n",
2276 			 ret);
2277 		return ret;
2278 	}
2279 
2280 	n_algs = be32_to_cpu(adsp1_id.n_algs);
2281 
2282 	wmfw_parse_id_header(dsp, &adsp1_id.fw, n_algs);
2283 
2284 	alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
2285 					   adsp1_id.fw.id, adsp1_id.zm);
2286 	if (IS_ERR(alg_region))
2287 		return PTR_ERR(alg_region);
2288 
2289 	alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
2290 					   adsp1_id.fw.id, adsp1_id.dm);
2291 	if (IS_ERR(alg_region))
2292 		return PTR_ERR(alg_region);
2293 
2294 	/* Calculate offset and length in DSP words */
2295 	pos = sizeof(adsp1_id) / sizeof(u32);
2296 	len = (sizeof(*adsp1_alg) * n_algs) / sizeof(u32);
2297 
2298 	adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
2299 	if (IS_ERR(adsp1_alg))
2300 		return PTR_ERR(adsp1_alg);
2301 
2302 	for (i = 0; i < n_algs; i++) {
2303 		adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
2304 			  i, be32_to_cpu(adsp1_alg[i].alg.id),
2305 			  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
2306 			  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
2307 			  be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
2308 			  be32_to_cpu(adsp1_alg[i].dm),
2309 			  be32_to_cpu(adsp1_alg[i].zm));
2310 
2311 		alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
2312 						   adsp1_alg[i].alg.id,
2313 						   adsp1_alg[i].dm);
2314 		if (IS_ERR(alg_region)) {
2315 			ret = PTR_ERR(alg_region);
2316 			goto out;
2317 		}
2318 		if (dsp->fw_ver == 0) {
2319 			if (i + 1 < n_algs) {
2320 				len = be32_to_cpu(adsp1_alg[i + 1].dm);
2321 				len -= be32_to_cpu(adsp1_alg[i].dm);
2322 				len *= 4;
2323 				wm_adsp_create_control(dsp, alg_region, 0,
2324 						     len, NULL, 0, 0,
2325 						     SNDRV_CTL_ELEM_TYPE_BYTES);
2326 			} else {
2327 				adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
2328 					  be32_to_cpu(adsp1_alg[i].alg.id));
2329 			}
2330 		}
2331 
2332 		alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
2333 						   adsp1_alg[i].alg.id,
2334 						   adsp1_alg[i].zm);
2335 		if (IS_ERR(alg_region)) {
2336 			ret = PTR_ERR(alg_region);
2337 			goto out;
2338 		}
2339 		if (dsp->fw_ver == 0) {
2340 			if (i + 1 < n_algs) {
2341 				len = be32_to_cpu(adsp1_alg[i + 1].zm);
2342 				len -= be32_to_cpu(adsp1_alg[i].zm);
2343 				len *= 4;
2344 				wm_adsp_create_control(dsp, alg_region, 0,
2345 						     len, NULL, 0, 0,
2346 						     SNDRV_CTL_ELEM_TYPE_BYTES);
2347 			} else {
2348 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
2349 					  be32_to_cpu(adsp1_alg[i].alg.id));
2350 			}
2351 		}
2352 	}
2353 
2354 out:
2355 	kfree(adsp1_alg);
2356 	return ret;
2357 }
2358 
2359 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
2360 {
2361 	struct wmfw_adsp2_id_hdr adsp2_id;
2362 	struct wmfw_adsp2_alg_hdr *adsp2_alg;
2363 	struct wm_adsp_alg_region *alg_region;
2364 	const struct wm_adsp_region *mem;
2365 	unsigned int pos, len;
2366 	size_t n_algs;
2367 	int i, ret;
2368 
2369 	mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
2370 	if (WARN_ON(!mem))
2371 		return -EINVAL;
2372 
2373 	ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
2374 			      sizeof(adsp2_id));
2375 	if (ret != 0) {
2376 		adsp_err(dsp, "Failed to read algorithm info: %d\n",
2377 			 ret);
2378 		return ret;
2379 	}
2380 
2381 	n_algs = be32_to_cpu(adsp2_id.n_algs);
2382 
2383 	wmfw_parse_id_header(dsp, &adsp2_id.fw, n_algs);
2384 
2385 	alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
2386 					   adsp2_id.fw.id, adsp2_id.xm);
2387 	if (IS_ERR(alg_region))
2388 		return PTR_ERR(alg_region);
2389 
2390 	alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
2391 					   adsp2_id.fw.id, adsp2_id.ym);
2392 	if (IS_ERR(alg_region))
2393 		return PTR_ERR(alg_region);
2394 
2395 	alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
2396 					   adsp2_id.fw.id, adsp2_id.zm);
2397 	if (IS_ERR(alg_region))
2398 		return PTR_ERR(alg_region);
2399 
2400 	/* Calculate offset and length in DSP words */
2401 	pos = sizeof(adsp2_id) / sizeof(u32);
2402 	len = (sizeof(*adsp2_alg) * n_algs) / sizeof(u32);
2403 
2404 	adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
2405 	if (IS_ERR(adsp2_alg))
2406 		return PTR_ERR(adsp2_alg);
2407 
2408 	for (i = 0; i < n_algs; i++) {
2409 		adsp_info(dsp,
2410 			  "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
2411 			  i, be32_to_cpu(adsp2_alg[i].alg.id),
2412 			  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
2413 			  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
2414 			  be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
2415 			  be32_to_cpu(adsp2_alg[i].xm),
2416 			  be32_to_cpu(adsp2_alg[i].ym),
2417 			  be32_to_cpu(adsp2_alg[i].zm));
2418 
2419 		alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
2420 						   adsp2_alg[i].alg.id,
2421 						   adsp2_alg[i].xm);
2422 		if (IS_ERR(alg_region)) {
2423 			ret = PTR_ERR(alg_region);
2424 			goto out;
2425 		}
2426 		if (dsp->fw_ver == 0) {
2427 			if (i + 1 < n_algs) {
2428 				len = be32_to_cpu(adsp2_alg[i + 1].xm);
2429 				len -= be32_to_cpu(adsp2_alg[i].xm);
2430 				len *= 4;
2431 				wm_adsp_create_control(dsp, alg_region, 0,
2432 						     len, NULL, 0, 0,
2433 						     SNDRV_CTL_ELEM_TYPE_BYTES);
2434 			} else {
2435 				adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
2436 					  be32_to_cpu(adsp2_alg[i].alg.id));
2437 			}
2438 		}
2439 
2440 		alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
2441 						   adsp2_alg[i].alg.id,
2442 						   adsp2_alg[i].ym);
2443 		if (IS_ERR(alg_region)) {
2444 			ret = PTR_ERR(alg_region);
2445 			goto out;
2446 		}
2447 		if (dsp->fw_ver == 0) {
2448 			if (i + 1 < n_algs) {
2449 				len = be32_to_cpu(adsp2_alg[i + 1].ym);
2450 				len -= be32_to_cpu(adsp2_alg[i].ym);
2451 				len *= 4;
2452 				wm_adsp_create_control(dsp, alg_region, 0,
2453 						     len, NULL, 0, 0,
2454 						     SNDRV_CTL_ELEM_TYPE_BYTES);
2455 			} else {
2456 				adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
2457 					  be32_to_cpu(adsp2_alg[i].alg.id));
2458 			}
2459 		}
2460 
2461 		alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
2462 						   adsp2_alg[i].alg.id,
2463 						   adsp2_alg[i].zm);
2464 		if (IS_ERR(alg_region)) {
2465 			ret = PTR_ERR(alg_region);
2466 			goto out;
2467 		}
2468 		if (dsp->fw_ver == 0) {
2469 			if (i + 1 < n_algs) {
2470 				len = be32_to_cpu(adsp2_alg[i + 1].zm);
2471 				len -= be32_to_cpu(adsp2_alg[i].zm);
2472 				len *= 4;
2473 				wm_adsp_create_control(dsp, alg_region, 0,
2474 						     len, NULL, 0, 0,
2475 						     SNDRV_CTL_ELEM_TYPE_BYTES);
2476 			} else {
2477 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
2478 					  be32_to_cpu(adsp2_alg[i].alg.id));
2479 			}
2480 		}
2481 	}
2482 
2483 out:
2484 	kfree(adsp2_alg);
2485 	return ret;
2486 }
2487 
2488 static int wm_halo_create_regions(struct wm_adsp *dsp, __be32 id,
2489 				  __be32 xm_base, __be32 ym_base)
2490 {
2491 	static const int types[] = {
2492 		WMFW_ADSP2_XM, WMFW_HALO_XM_PACKED,
2493 		WMFW_ADSP2_YM, WMFW_HALO_YM_PACKED
2494 	};
2495 	__be32 bases[] = { xm_base, xm_base, ym_base, ym_base };
2496 
2497 	return wm_adsp_create_regions(dsp, id, ARRAY_SIZE(types), types, bases);
2498 }
2499 
2500 static int wm_halo_setup_algs(struct wm_adsp *dsp)
2501 {
2502 	struct wmfw_halo_id_hdr halo_id;
2503 	struct wmfw_halo_alg_hdr *halo_alg;
2504 	const struct wm_adsp_region *mem;
2505 	unsigned int pos, len;
2506 	size_t n_algs;
2507 	int i, ret;
2508 
2509 	mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
2510 	if (WARN_ON(!mem))
2511 		return -EINVAL;
2512 
2513 	ret = regmap_raw_read(dsp->regmap, mem->base, &halo_id,
2514 			      sizeof(halo_id));
2515 	if (ret != 0) {
2516 		adsp_err(dsp, "Failed to read algorithm info: %d\n",
2517 			 ret);
2518 		return ret;
2519 	}
2520 
2521 	n_algs = be32_to_cpu(halo_id.n_algs);
2522 
2523 	wmfw_v3_parse_id_header(dsp, &halo_id.fw, n_algs);
2524 
2525 	ret = wm_halo_create_regions(dsp, halo_id.fw.id,
2526 				     halo_id.xm_base, halo_id.ym_base);
2527 	if (ret)
2528 		return ret;
2529 
2530 	/* Calculate offset and length in DSP words */
2531 	pos = sizeof(halo_id) / sizeof(u32);
2532 	len = (sizeof(*halo_alg) * n_algs) / sizeof(u32);
2533 
2534 	halo_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
2535 	if (IS_ERR(halo_alg))
2536 		return PTR_ERR(halo_alg);
2537 
2538 	for (i = 0; i < n_algs; i++) {
2539 		adsp_info(dsp,
2540 			  "%d: ID %x v%d.%d.%d XM@%x YM@%x\n",
2541 			  i, be32_to_cpu(halo_alg[i].alg.id),
2542 			  (be32_to_cpu(halo_alg[i].alg.ver) & 0xff0000) >> 16,
2543 			  (be32_to_cpu(halo_alg[i].alg.ver) & 0xff00) >> 8,
2544 			  be32_to_cpu(halo_alg[i].alg.ver) & 0xff,
2545 			  be32_to_cpu(halo_alg[i].xm_base),
2546 			  be32_to_cpu(halo_alg[i].ym_base));
2547 
2548 		ret = wm_halo_create_regions(dsp, halo_alg[i].alg.id,
2549 					     halo_alg[i].xm_base,
2550 					     halo_alg[i].ym_base);
2551 		if (ret)
2552 			goto out;
2553 	}
2554 
2555 out:
2556 	kfree(halo_alg);
2557 	return ret;
2558 }
2559 
2560 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
2561 {
2562 	LIST_HEAD(buf_list);
2563 	struct regmap *regmap = dsp->regmap;
2564 	struct wmfw_coeff_hdr *hdr;
2565 	struct wmfw_coeff_item *blk;
2566 	const struct firmware *firmware;
2567 	const struct wm_adsp_region *mem;
2568 	struct wm_adsp_alg_region *alg_region;
2569 	const char *region_name;
2570 	int ret, pos, blocks, type, offset, reg;
2571 	char *file;
2572 	struct wm_adsp_buf *buf;
2573 
2574 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
2575 	if (file == NULL)
2576 		return -ENOMEM;
2577 
2578 	snprintf(file, PAGE_SIZE, "%s-%s-%s.bin", dsp->part, dsp->fwf_name,
2579 		 wm_adsp_fw[dsp->fw].file);
2580 	file[PAGE_SIZE - 1] = '\0';
2581 
2582 	ret = request_firmware(&firmware, file, dsp->dev);
2583 	if (ret != 0) {
2584 		adsp_warn(dsp, "Failed to request '%s'\n", file);
2585 		ret = 0;
2586 		goto out;
2587 	}
2588 	ret = -EINVAL;
2589 
2590 	if (sizeof(*hdr) >= firmware->size) {
2591 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
2592 			file, firmware->size);
2593 		goto out_fw;
2594 	}
2595 
2596 	hdr = (void *)&firmware->data[0];
2597 	if (memcmp(hdr->magic, "WMDR", 4) != 0) {
2598 		adsp_err(dsp, "%s: invalid magic\n", file);
2599 		goto out_fw;
2600 	}
2601 
2602 	switch (be32_to_cpu(hdr->rev) & 0xff) {
2603 	case 1:
2604 		break;
2605 	default:
2606 		adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
2607 			 file, be32_to_cpu(hdr->rev) & 0xff);
2608 		ret = -EINVAL;
2609 		goto out_fw;
2610 	}
2611 
2612 	adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
2613 		(le32_to_cpu(hdr->ver) >> 16) & 0xff,
2614 		(le32_to_cpu(hdr->ver) >>  8) & 0xff,
2615 		le32_to_cpu(hdr->ver) & 0xff);
2616 
2617 	pos = le32_to_cpu(hdr->len);
2618 
2619 	blocks = 0;
2620 	while (pos < firmware->size &&
2621 	       sizeof(*blk) < firmware->size - pos) {
2622 		blk = (void *)(&firmware->data[pos]);
2623 
2624 		type = le16_to_cpu(blk->type);
2625 		offset = le16_to_cpu(blk->offset);
2626 
2627 		adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
2628 			 file, blocks, le32_to_cpu(blk->id),
2629 			 (le32_to_cpu(blk->ver) >> 16) & 0xff,
2630 			 (le32_to_cpu(blk->ver) >>  8) & 0xff,
2631 			 le32_to_cpu(blk->ver) & 0xff);
2632 		adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
2633 			 file, blocks, le32_to_cpu(blk->len), offset, type);
2634 
2635 		reg = 0;
2636 		region_name = "Unknown";
2637 		switch (type) {
2638 		case (WMFW_NAME_TEXT << 8):
2639 		case (WMFW_INFO_TEXT << 8):
2640 		case (WMFW_METADATA << 8):
2641 			break;
2642 		case (WMFW_ABSOLUTE << 8):
2643 			/*
2644 			 * Old files may use this for global
2645 			 * coefficients.
2646 			 */
2647 			if (le32_to_cpu(blk->id) == dsp->fw_id &&
2648 			    offset == 0) {
2649 				region_name = "global coefficients";
2650 				mem = wm_adsp_find_region(dsp, type);
2651 				if (!mem) {
2652 					adsp_err(dsp, "No ZM\n");
2653 					break;
2654 				}
2655 				reg = dsp->ops->region_to_reg(mem, 0);
2656 
2657 			} else {
2658 				region_name = "register";
2659 				reg = offset;
2660 			}
2661 			break;
2662 
2663 		case WMFW_ADSP1_DM:
2664 		case WMFW_ADSP1_ZM:
2665 		case WMFW_ADSP2_XM:
2666 		case WMFW_ADSP2_YM:
2667 		case WMFW_HALO_XM_PACKED:
2668 		case WMFW_HALO_YM_PACKED:
2669 		case WMFW_HALO_PM_PACKED:
2670 			adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
2671 				 file, blocks, le32_to_cpu(blk->len),
2672 				 type, le32_to_cpu(blk->id));
2673 
2674 			mem = wm_adsp_find_region(dsp, type);
2675 			if (!mem) {
2676 				adsp_err(dsp, "No base for region %x\n", type);
2677 				break;
2678 			}
2679 
2680 			alg_region = wm_adsp_find_alg_region(dsp, type,
2681 						le32_to_cpu(blk->id));
2682 			if (alg_region) {
2683 				reg = alg_region->base;
2684 				reg = dsp->ops->region_to_reg(mem, reg);
2685 				reg += offset;
2686 			} else {
2687 				adsp_err(dsp, "No %x for algorithm %x\n",
2688 					 type, le32_to_cpu(blk->id));
2689 			}
2690 			break;
2691 
2692 		default:
2693 			adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
2694 				 file, blocks, type, pos);
2695 			break;
2696 		}
2697 
2698 		if (reg) {
2699 			if (le32_to_cpu(blk->len) >
2700 			    firmware->size - pos - sizeof(*blk)) {
2701 				adsp_err(dsp,
2702 					 "%s.%d: %s region len %d bytes exceeds file length %zu\n",
2703 					 file, blocks, region_name,
2704 					 le32_to_cpu(blk->len),
2705 					 firmware->size);
2706 				ret = -EINVAL;
2707 				goto out_fw;
2708 			}
2709 
2710 			buf = wm_adsp_buf_alloc(blk->data,
2711 						le32_to_cpu(blk->len),
2712 						&buf_list);
2713 			if (!buf) {
2714 				adsp_err(dsp, "Out of memory\n");
2715 				ret = -ENOMEM;
2716 				goto out_fw;
2717 			}
2718 
2719 			adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
2720 				 file, blocks, le32_to_cpu(blk->len),
2721 				 reg);
2722 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
2723 						     le32_to_cpu(blk->len));
2724 			if (ret != 0) {
2725 				adsp_err(dsp,
2726 					"%s.%d: Failed to write to %x in %s: %d\n",
2727 					file, blocks, reg, region_name, ret);
2728 			}
2729 		}
2730 
2731 		pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
2732 		blocks++;
2733 	}
2734 
2735 	ret = regmap_async_complete(regmap);
2736 	if (ret != 0)
2737 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
2738 
2739 	if (pos > firmware->size)
2740 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2741 			  file, blocks, pos - firmware->size);
2742 
2743 	wm_adsp_debugfs_save_binname(dsp, file);
2744 
2745 out_fw:
2746 	regmap_async_complete(regmap);
2747 	release_firmware(firmware);
2748 	wm_adsp_buf_free(&buf_list);
2749 out:
2750 	kfree(file);
2751 	return ret;
2752 }
2753 
2754 static int wm_adsp_create_name(struct wm_adsp *dsp)
2755 {
2756 	char *p;
2757 
2758 	if (!dsp->name) {
2759 		dsp->name = devm_kasprintf(dsp->dev, GFP_KERNEL, "DSP%d",
2760 					   dsp->num);
2761 		if (!dsp->name)
2762 			return -ENOMEM;
2763 	}
2764 
2765 	if (!dsp->fwf_name) {
2766 		p = devm_kstrdup(dsp->dev, dsp->name, GFP_KERNEL);
2767 		if (!p)
2768 			return -ENOMEM;
2769 
2770 		dsp->fwf_name = p;
2771 		for (; *p != 0; ++p)
2772 			*p = tolower(*p);
2773 	}
2774 
2775 	return 0;
2776 }
2777 
2778 static int wm_adsp_common_init(struct wm_adsp *dsp)
2779 {
2780 	int ret;
2781 
2782 	ret = wm_adsp_create_name(dsp);
2783 	if (ret)
2784 		return ret;
2785 
2786 	INIT_LIST_HEAD(&dsp->alg_regions);
2787 	INIT_LIST_HEAD(&dsp->ctl_list);
2788 	INIT_LIST_HEAD(&dsp->compr_list);
2789 	INIT_LIST_HEAD(&dsp->buffer_list);
2790 
2791 	mutex_init(&dsp->pwr_lock);
2792 
2793 	return 0;
2794 }
2795 
2796 int wm_adsp1_init(struct wm_adsp *dsp)
2797 {
2798 	dsp->ops = &wm_adsp1_ops;
2799 
2800 	return wm_adsp_common_init(dsp);
2801 }
2802 EXPORT_SYMBOL_GPL(wm_adsp1_init);
2803 
2804 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
2805 		   struct snd_kcontrol *kcontrol,
2806 		   int event)
2807 {
2808 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
2809 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
2810 	struct wm_adsp *dsp = &dsps[w->shift];
2811 	struct wm_coeff_ctl *ctl;
2812 	int ret;
2813 	unsigned int val;
2814 
2815 	dsp->component = component;
2816 
2817 	mutex_lock(&dsp->pwr_lock);
2818 
2819 	switch (event) {
2820 	case SND_SOC_DAPM_POST_PMU:
2821 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2822 				   ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2823 
2824 		/*
2825 		 * For simplicity set the DSP clock rate to be the
2826 		 * SYSCLK rate rather than making it configurable.
2827 		 */
2828 		if (dsp->sysclk_reg) {
2829 			ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2830 			if (ret != 0) {
2831 				adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2832 				ret);
2833 				goto err_mutex;
2834 			}
2835 
2836 			val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2837 
2838 			ret = regmap_update_bits(dsp->regmap,
2839 						 dsp->base + ADSP1_CONTROL_31,
2840 						 ADSP1_CLK_SEL_MASK, val);
2841 			if (ret != 0) {
2842 				adsp_err(dsp, "Failed to set clock rate: %d\n",
2843 					 ret);
2844 				goto err_mutex;
2845 			}
2846 		}
2847 
2848 		ret = wm_adsp_load(dsp);
2849 		if (ret != 0)
2850 			goto err_ena;
2851 
2852 		ret = wm_adsp1_setup_algs(dsp);
2853 		if (ret != 0)
2854 			goto err_ena;
2855 
2856 		ret = wm_adsp_load_coeff(dsp);
2857 		if (ret != 0)
2858 			goto err_ena;
2859 
2860 		/* Initialize caches for enabled and unset controls */
2861 		ret = wm_coeff_init_control_caches(dsp);
2862 		if (ret != 0)
2863 			goto err_ena;
2864 
2865 		/* Sync set controls */
2866 		ret = wm_coeff_sync_controls(dsp);
2867 		if (ret != 0)
2868 			goto err_ena;
2869 
2870 		dsp->booted = true;
2871 
2872 		/* Start the core running */
2873 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2874 				   ADSP1_CORE_ENA | ADSP1_START,
2875 				   ADSP1_CORE_ENA | ADSP1_START);
2876 
2877 		dsp->running = true;
2878 		break;
2879 
2880 	case SND_SOC_DAPM_PRE_PMD:
2881 		dsp->running = false;
2882 		dsp->booted = false;
2883 
2884 		/* Halt the core */
2885 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2886 				   ADSP1_CORE_ENA | ADSP1_START, 0);
2887 
2888 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2889 				   ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2890 
2891 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2892 				   ADSP1_SYS_ENA, 0);
2893 
2894 		list_for_each_entry(ctl, &dsp->ctl_list, list)
2895 			ctl->enabled = 0;
2896 
2897 
2898 		wm_adsp_free_alg_regions(dsp);
2899 		break;
2900 
2901 	default:
2902 		break;
2903 	}
2904 
2905 	mutex_unlock(&dsp->pwr_lock);
2906 
2907 	return 0;
2908 
2909 err_ena:
2910 	regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2911 			   ADSP1_SYS_ENA, 0);
2912 err_mutex:
2913 	mutex_unlock(&dsp->pwr_lock);
2914 
2915 	return ret;
2916 }
2917 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2918 
2919 static int wm_adsp2v2_enable_core(struct wm_adsp *dsp)
2920 {
2921 	unsigned int val;
2922 	int ret, count;
2923 
2924 	/* Wait for the RAM to start, should be near instantaneous */
2925 	for (count = 0; count < 10; ++count) {
2926 		ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2927 		if (ret != 0)
2928 			return ret;
2929 
2930 		if (val & ADSP2_RAM_RDY)
2931 			break;
2932 
2933 		usleep_range(250, 500);
2934 	}
2935 
2936 	if (!(val & ADSP2_RAM_RDY)) {
2937 		adsp_err(dsp, "Failed to start DSP RAM\n");
2938 		return -EBUSY;
2939 	}
2940 
2941 	adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2942 
2943 	return 0;
2944 }
2945 
2946 static int wm_adsp2_enable_core(struct wm_adsp *dsp)
2947 {
2948 	int ret;
2949 
2950 	ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2951 				       ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2952 	if (ret != 0)
2953 		return ret;
2954 
2955 	return wm_adsp2v2_enable_core(dsp);
2956 }
2957 
2958 static int wm_adsp2_lock(struct wm_adsp *dsp, unsigned int lock_regions)
2959 {
2960 	struct regmap *regmap = dsp->regmap;
2961 	unsigned int code0, code1, lock_reg;
2962 
2963 	if (!(lock_regions & WM_ADSP2_REGION_ALL))
2964 		return 0;
2965 
2966 	lock_regions &= WM_ADSP2_REGION_ALL;
2967 	lock_reg = dsp->base + ADSP2_LOCK_REGION_1_LOCK_REGION_0;
2968 
2969 	while (lock_regions) {
2970 		code0 = code1 = 0;
2971 		if (lock_regions & BIT(0)) {
2972 			code0 = ADSP2_LOCK_CODE_0;
2973 			code1 = ADSP2_LOCK_CODE_1;
2974 		}
2975 		if (lock_regions & BIT(1)) {
2976 			code0 |= ADSP2_LOCK_CODE_0 << ADSP2_LOCK_REGION_SHIFT;
2977 			code1 |= ADSP2_LOCK_CODE_1 << ADSP2_LOCK_REGION_SHIFT;
2978 		}
2979 		regmap_write(regmap, lock_reg, code0);
2980 		regmap_write(regmap, lock_reg, code1);
2981 		lock_regions >>= 2;
2982 		lock_reg += 2;
2983 	}
2984 
2985 	return 0;
2986 }
2987 
2988 static int wm_adsp2_enable_memory(struct wm_adsp *dsp)
2989 {
2990 	return regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2991 				  ADSP2_MEM_ENA, ADSP2_MEM_ENA);
2992 }
2993 
2994 static void wm_adsp2_disable_memory(struct wm_adsp *dsp)
2995 {
2996 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2997 			   ADSP2_MEM_ENA, 0);
2998 }
2999 
3000 static void wm_adsp2_disable_core(struct wm_adsp *dsp)
3001 {
3002 	regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
3003 	regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
3004 	regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
3005 
3006 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
3007 			   ADSP2_SYS_ENA, 0);
3008 }
3009 
3010 static void wm_adsp2v2_disable_core(struct wm_adsp *dsp)
3011 {
3012 	regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
3013 	regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
3014 	regmap_write(dsp->regmap, dsp->base + ADSP2V2_WDMA_CONFIG_2, 0);
3015 }
3016 
3017 static void wm_adsp_boot_work(struct work_struct *work)
3018 {
3019 	struct wm_adsp *dsp = container_of(work,
3020 					   struct wm_adsp,
3021 					   boot_work);
3022 	int ret;
3023 
3024 	mutex_lock(&dsp->pwr_lock);
3025 
3026 	if (dsp->ops->enable_memory) {
3027 		ret = dsp->ops->enable_memory(dsp);
3028 		if (ret != 0)
3029 			goto err_mutex;
3030 	}
3031 
3032 	if (dsp->ops->enable_core) {
3033 		ret = dsp->ops->enable_core(dsp);
3034 		if (ret != 0)
3035 			goto err_mem;
3036 	}
3037 
3038 	ret = wm_adsp_load(dsp);
3039 	if (ret != 0)
3040 		goto err_ena;
3041 
3042 	ret = dsp->ops->setup_algs(dsp);
3043 	if (ret != 0)
3044 		goto err_ena;
3045 
3046 	ret = wm_adsp_load_coeff(dsp);
3047 	if (ret != 0)
3048 		goto err_ena;
3049 
3050 	/* Initialize caches for enabled and unset controls */
3051 	ret = wm_coeff_init_control_caches(dsp);
3052 	if (ret != 0)
3053 		goto err_ena;
3054 
3055 	if (dsp->ops->disable_core)
3056 		dsp->ops->disable_core(dsp);
3057 
3058 	dsp->booted = true;
3059 
3060 	mutex_unlock(&dsp->pwr_lock);
3061 
3062 	return;
3063 
3064 err_ena:
3065 	if (dsp->ops->disable_core)
3066 		dsp->ops->disable_core(dsp);
3067 err_mem:
3068 	if (dsp->ops->disable_memory)
3069 		dsp->ops->disable_memory(dsp);
3070 err_mutex:
3071 	mutex_unlock(&dsp->pwr_lock);
3072 }
3073 
3074 static int wm_halo_configure_mpu(struct wm_adsp *dsp, unsigned int lock_regions)
3075 {
3076 	struct reg_sequence config[] = {
3077 		{ dsp->base + HALO_MPU_LOCK_CONFIG,     0x5555 },
3078 		{ dsp->base + HALO_MPU_LOCK_CONFIG,     0xAAAA },
3079 		{ dsp->base + HALO_MPU_XMEM_ACCESS_0,   0xFFFFFFFF },
3080 		{ dsp->base + HALO_MPU_YMEM_ACCESS_0,   0xFFFFFFFF },
3081 		{ dsp->base + HALO_MPU_WINDOW_ACCESS_0, lock_regions },
3082 		{ dsp->base + HALO_MPU_XREG_ACCESS_0,   lock_regions },
3083 		{ dsp->base + HALO_MPU_YREG_ACCESS_0,   lock_regions },
3084 		{ dsp->base + HALO_MPU_XMEM_ACCESS_1,   0xFFFFFFFF },
3085 		{ dsp->base + HALO_MPU_YMEM_ACCESS_1,   0xFFFFFFFF },
3086 		{ dsp->base + HALO_MPU_WINDOW_ACCESS_1, lock_regions },
3087 		{ dsp->base + HALO_MPU_XREG_ACCESS_1,   lock_regions },
3088 		{ dsp->base + HALO_MPU_YREG_ACCESS_1,   lock_regions },
3089 		{ dsp->base + HALO_MPU_XMEM_ACCESS_2,   0xFFFFFFFF },
3090 		{ dsp->base + HALO_MPU_YMEM_ACCESS_2,   0xFFFFFFFF },
3091 		{ dsp->base + HALO_MPU_WINDOW_ACCESS_2, lock_regions },
3092 		{ dsp->base + HALO_MPU_XREG_ACCESS_2,   lock_regions },
3093 		{ dsp->base + HALO_MPU_YREG_ACCESS_2,   lock_regions },
3094 		{ dsp->base + HALO_MPU_XMEM_ACCESS_3,   0xFFFFFFFF },
3095 		{ dsp->base + HALO_MPU_YMEM_ACCESS_3,   0xFFFFFFFF },
3096 		{ dsp->base + HALO_MPU_WINDOW_ACCESS_3, lock_regions },
3097 		{ dsp->base + HALO_MPU_XREG_ACCESS_3,   lock_regions },
3098 		{ dsp->base + HALO_MPU_YREG_ACCESS_3,   lock_regions },
3099 		{ dsp->base + HALO_MPU_LOCK_CONFIG,     0 },
3100 	};
3101 
3102 	return regmap_multi_reg_write(dsp->regmap, config, ARRAY_SIZE(config));
3103 }
3104 
3105 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
3106 {
3107 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
3108 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
3109 	struct wm_adsp *dsp = &dsps[w->shift];
3110 	int ret;
3111 
3112 	ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CLOCKING,
3113 				 ADSP2_CLK_SEL_MASK,
3114 				 freq << ADSP2_CLK_SEL_SHIFT);
3115 	if (ret)
3116 		adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
3117 
3118 	return ret;
3119 }
3120 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
3121 
3122 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
3123 			   struct snd_ctl_elem_value *ucontrol)
3124 {
3125 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
3126 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
3127 	struct soc_mixer_control *mc =
3128 		(struct soc_mixer_control *)kcontrol->private_value;
3129 	struct wm_adsp *dsp = &dsps[mc->shift - 1];
3130 
3131 	ucontrol->value.integer.value[0] = dsp->preloaded;
3132 
3133 	return 0;
3134 }
3135 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
3136 
3137 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
3138 			   struct snd_ctl_elem_value *ucontrol)
3139 {
3140 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
3141 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
3142 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
3143 	struct soc_mixer_control *mc =
3144 		(struct soc_mixer_control *)kcontrol->private_value;
3145 	struct wm_adsp *dsp = &dsps[mc->shift - 1];
3146 	char preload[32];
3147 
3148 	snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->name);
3149 
3150 	dsp->preloaded = ucontrol->value.integer.value[0];
3151 
3152 	if (ucontrol->value.integer.value[0])
3153 		snd_soc_component_force_enable_pin(component, preload);
3154 	else
3155 		snd_soc_component_disable_pin(component, preload);
3156 
3157 	snd_soc_dapm_sync(dapm);
3158 
3159 	flush_work(&dsp->boot_work);
3160 
3161 	return 0;
3162 }
3163 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
3164 
3165 static void wm_adsp_stop_watchdog(struct wm_adsp *dsp)
3166 {
3167 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_WATCHDOG,
3168 			   ADSP2_WDT_ENA_MASK, 0);
3169 }
3170 
3171 static void wm_halo_stop_watchdog(struct wm_adsp *dsp)
3172 {
3173 	regmap_update_bits(dsp->regmap, dsp->base + HALO_WDT_CONTROL,
3174 			   HALO_WDT_EN_MASK, 0);
3175 }
3176 
3177 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
3178 			struct snd_kcontrol *kcontrol, int event)
3179 {
3180 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
3181 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
3182 	struct wm_adsp *dsp = &dsps[w->shift];
3183 	struct wm_coeff_ctl *ctl;
3184 
3185 	switch (event) {
3186 	case SND_SOC_DAPM_PRE_PMU:
3187 		queue_work(system_unbound_wq, &dsp->boot_work);
3188 		break;
3189 	case SND_SOC_DAPM_PRE_PMD:
3190 		mutex_lock(&dsp->pwr_lock);
3191 
3192 		wm_adsp_debugfs_clear(dsp);
3193 
3194 		dsp->fw_id = 0;
3195 		dsp->fw_id_version = 0;
3196 
3197 		dsp->booted = false;
3198 
3199 		if (dsp->ops->disable_memory)
3200 			dsp->ops->disable_memory(dsp);
3201 
3202 		list_for_each_entry(ctl, &dsp->ctl_list, list)
3203 			ctl->enabled = 0;
3204 
3205 		wm_adsp_free_alg_regions(dsp);
3206 
3207 		mutex_unlock(&dsp->pwr_lock);
3208 
3209 		adsp_dbg(dsp, "Shutdown complete\n");
3210 		break;
3211 	default:
3212 		break;
3213 	}
3214 
3215 	return 0;
3216 }
3217 EXPORT_SYMBOL_GPL(wm_adsp_early_event);
3218 
3219 static int wm_adsp2_start_core(struct wm_adsp *dsp)
3220 {
3221 	return regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
3222 				 ADSP2_CORE_ENA | ADSP2_START,
3223 				 ADSP2_CORE_ENA | ADSP2_START);
3224 }
3225 
3226 static void wm_adsp2_stop_core(struct wm_adsp *dsp)
3227 {
3228 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
3229 			   ADSP2_CORE_ENA | ADSP2_START, 0);
3230 }
3231 
3232 int wm_adsp_event(struct snd_soc_dapm_widget *w,
3233 		  struct snd_kcontrol *kcontrol, int event)
3234 {
3235 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
3236 	struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
3237 	struct wm_adsp *dsp = &dsps[w->shift];
3238 	int ret;
3239 
3240 	switch (event) {
3241 	case SND_SOC_DAPM_POST_PMU:
3242 		flush_work(&dsp->boot_work);
3243 
3244 		mutex_lock(&dsp->pwr_lock);
3245 
3246 		if (!dsp->booted) {
3247 			ret = -EIO;
3248 			goto err;
3249 		}
3250 
3251 		if (dsp->ops->enable_core) {
3252 			ret = dsp->ops->enable_core(dsp);
3253 			if (ret != 0)
3254 				goto err;
3255 		}
3256 
3257 		/* Sync set controls */
3258 		ret = wm_coeff_sync_controls(dsp);
3259 		if (ret != 0)
3260 			goto err;
3261 
3262 		if (dsp->ops->lock_memory) {
3263 			ret = dsp->ops->lock_memory(dsp, dsp->lock_regions);
3264 			if (ret != 0) {
3265 				adsp_err(dsp, "Error configuring MPU: %d\n",
3266 					 ret);
3267 				goto err;
3268 			}
3269 		}
3270 
3271 		if (dsp->ops->start_core) {
3272 			ret = dsp->ops->start_core(dsp);
3273 			if (ret != 0)
3274 				goto err;
3275 		}
3276 
3277 		if (wm_adsp_fw[dsp->fw].num_caps != 0) {
3278 			ret = wm_adsp_buffer_init(dsp);
3279 			if (ret < 0)
3280 				goto err;
3281 		}
3282 
3283 		dsp->running = true;
3284 
3285 		mutex_unlock(&dsp->pwr_lock);
3286 		break;
3287 
3288 	case SND_SOC_DAPM_PRE_PMD:
3289 		/* Tell the firmware to cleanup */
3290 		wm_adsp_signal_event_controls(dsp, WM_ADSP_FW_EVENT_SHUTDOWN);
3291 
3292 		if (dsp->ops->stop_watchdog)
3293 			dsp->ops->stop_watchdog(dsp);
3294 
3295 		/* Log firmware state, it can be useful for analysis */
3296 		if (dsp->ops->show_fw_status)
3297 			dsp->ops->show_fw_status(dsp);
3298 
3299 		mutex_lock(&dsp->pwr_lock);
3300 
3301 		dsp->running = false;
3302 
3303 		if (dsp->ops->stop_core)
3304 			dsp->ops->stop_core(dsp);
3305 		if (dsp->ops->disable_core)
3306 			dsp->ops->disable_core(dsp);
3307 
3308 		if (wm_adsp_fw[dsp->fw].num_caps != 0)
3309 			wm_adsp_buffer_free(dsp);
3310 
3311 		dsp->fatal_error = false;
3312 
3313 		mutex_unlock(&dsp->pwr_lock);
3314 
3315 		adsp_dbg(dsp, "Execution stopped\n");
3316 		break;
3317 
3318 	default:
3319 		break;
3320 	}
3321 
3322 	return 0;
3323 err:
3324 	if (dsp->ops->stop_core)
3325 		dsp->ops->stop_core(dsp);
3326 	if (dsp->ops->disable_core)
3327 		dsp->ops->disable_core(dsp);
3328 	mutex_unlock(&dsp->pwr_lock);
3329 	return ret;
3330 }
3331 EXPORT_SYMBOL_GPL(wm_adsp_event);
3332 
3333 static int wm_halo_start_core(struct wm_adsp *dsp)
3334 {
3335 	return regmap_update_bits(dsp->regmap,
3336 				  dsp->base + HALO_CCM_CORE_CONTROL,
3337 				  HALO_CORE_RESET | HALO_CORE_EN,
3338 				  HALO_CORE_RESET | HALO_CORE_EN);
3339 }
3340 
3341 static void wm_halo_stop_core(struct wm_adsp *dsp)
3342 {
3343 	regmap_update_bits(dsp->regmap, dsp->base + HALO_CCM_CORE_CONTROL,
3344 			   HALO_CORE_EN, 0);
3345 
3346 	/* reset halo core with CORE_SOFT_RESET */
3347 	regmap_update_bits(dsp->regmap, dsp->base + HALO_CORE_SOFT_RESET,
3348 			   HALO_CORE_SOFT_RESET_MASK, 1);
3349 }
3350 
3351 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
3352 {
3353 	char preload[32];
3354 
3355 	snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->name);
3356 	snd_soc_component_disable_pin(component, preload);
3357 
3358 	wm_adsp2_init_debugfs(dsp, component);
3359 
3360 	dsp->component = component;
3361 
3362 	return 0;
3363 }
3364 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
3365 
3366 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
3367 {
3368 	wm_adsp2_cleanup_debugfs(dsp);
3369 
3370 	return 0;
3371 }
3372 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
3373 
3374 int wm_adsp2_init(struct wm_adsp *dsp)
3375 {
3376 	int ret;
3377 
3378 	ret = wm_adsp_common_init(dsp);
3379 	if (ret)
3380 		return ret;
3381 
3382 	switch (dsp->rev) {
3383 	case 0:
3384 		/*
3385 		 * Disable the DSP memory by default when in reset for a small
3386 		 * power saving.
3387 		 */
3388 		ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
3389 					 ADSP2_MEM_ENA, 0);
3390 		if (ret) {
3391 			adsp_err(dsp,
3392 				 "Failed to clear memory retention: %d\n", ret);
3393 			return ret;
3394 		}
3395 
3396 		dsp->ops = &wm_adsp2_ops[0];
3397 		break;
3398 	case 1:
3399 		dsp->ops = &wm_adsp2_ops[1];
3400 		break;
3401 	default:
3402 		dsp->ops = &wm_adsp2_ops[2];
3403 		break;
3404 	}
3405 
3406 	INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
3407 
3408 	return 0;
3409 }
3410 EXPORT_SYMBOL_GPL(wm_adsp2_init);
3411 
3412 int wm_halo_init(struct wm_adsp *dsp)
3413 {
3414 	int ret;
3415 
3416 	ret = wm_adsp_common_init(dsp);
3417 	if (ret)
3418 		return ret;
3419 
3420 	dsp->ops = &wm_halo_ops;
3421 
3422 	INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
3423 
3424 	return 0;
3425 }
3426 EXPORT_SYMBOL_GPL(wm_halo_init);
3427 
3428 void wm_adsp2_remove(struct wm_adsp *dsp)
3429 {
3430 	struct wm_coeff_ctl *ctl;
3431 
3432 	while (!list_empty(&dsp->ctl_list)) {
3433 		ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
3434 					list);
3435 		list_del(&ctl->list);
3436 		wm_adsp_free_ctl_blk(ctl);
3437 	}
3438 }
3439 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
3440 
3441 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
3442 {
3443 	return compr->buf != NULL;
3444 }
3445 
3446 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
3447 {
3448 	struct wm_adsp_compr_buf *buf = NULL, *tmp;
3449 
3450 	if (compr->dsp->fatal_error)
3451 		return -EINVAL;
3452 
3453 	list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
3454 		if (!tmp->name || !strcmp(compr->name, tmp->name)) {
3455 			buf = tmp;
3456 			break;
3457 		}
3458 	}
3459 
3460 	if (!buf)
3461 		return -EINVAL;
3462 
3463 	compr->buf = buf;
3464 	buf->compr = compr;
3465 
3466 	return 0;
3467 }
3468 
3469 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
3470 {
3471 	if (!compr)
3472 		return;
3473 
3474 	/* Wake the poll so it can see buffer is no longer attached */
3475 	if (compr->stream)
3476 		snd_compr_fragment_elapsed(compr->stream);
3477 
3478 	if (wm_adsp_compr_attached(compr)) {
3479 		compr->buf->compr = NULL;
3480 		compr->buf = NULL;
3481 	}
3482 }
3483 
3484 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
3485 {
3486 	struct wm_adsp_compr *compr, *tmp;
3487 	struct snd_soc_pcm_runtime *rtd = stream->private_data;
3488 	int ret = 0;
3489 
3490 	mutex_lock(&dsp->pwr_lock);
3491 
3492 	if (wm_adsp_fw[dsp->fw].num_caps == 0) {
3493 		adsp_err(dsp, "%s: Firmware does not support compressed API\n",
3494 			 asoc_rtd_to_codec(rtd, 0)->name);
3495 		ret = -ENXIO;
3496 		goto out;
3497 	}
3498 
3499 	if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
3500 		adsp_err(dsp, "%s: Firmware does not support stream direction\n",
3501 			 asoc_rtd_to_codec(rtd, 0)->name);
3502 		ret = -EINVAL;
3503 		goto out;
3504 	}
3505 
3506 	list_for_each_entry(tmp, &dsp->compr_list, list) {
3507 		if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) {
3508 			adsp_err(dsp, "%s: Only a single stream supported per dai\n",
3509 				 asoc_rtd_to_codec(rtd, 0)->name);
3510 			ret = -EBUSY;
3511 			goto out;
3512 		}
3513 	}
3514 
3515 	compr = kzalloc(sizeof(*compr), GFP_KERNEL);
3516 	if (!compr) {
3517 		ret = -ENOMEM;
3518 		goto out;
3519 	}
3520 
3521 	compr->dsp = dsp;
3522 	compr->stream = stream;
3523 	compr->name = asoc_rtd_to_codec(rtd, 0)->name;
3524 
3525 	list_add_tail(&compr->list, &dsp->compr_list);
3526 
3527 	stream->runtime->private_data = compr;
3528 
3529 out:
3530 	mutex_unlock(&dsp->pwr_lock);
3531 
3532 	return ret;
3533 }
3534 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
3535 
3536 int wm_adsp_compr_free(struct snd_soc_component *component,
3537 		       struct snd_compr_stream *stream)
3538 {
3539 	struct wm_adsp_compr *compr = stream->runtime->private_data;
3540 	struct wm_adsp *dsp = compr->dsp;
3541 
3542 	mutex_lock(&dsp->pwr_lock);
3543 
3544 	wm_adsp_compr_detach(compr);
3545 	list_del(&compr->list);
3546 
3547 	kfree(compr->raw_buf);
3548 	kfree(compr);
3549 
3550 	mutex_unlock(&dsp->pwr_lock);
3551 
3552 	return 0;
3553 }
3554 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
3555 
3556 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
3557 				      struct snd_compr_params *params)
3558 {
3559 	struct wm_adsp_compr *compr = stream->runtime->private_data;
3560 	struct wm_adsp *dsp = compr->dsp;
3561 	const struct wm_adsp_fw_caps *caps;
3562 	const struct snd_codec_desc *desc;
3563 	int i, j;
3564 
3565 	if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
3566 	    params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
3567 	    params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
3568 	    params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
3569 	    params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
3570 		compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",
3571 			  params->buffer.fragment_size,
3572 			  params->buffer.fragments);
3573 
3574 		return -EINVAL;
3575 	}
3576 
3577 	for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
3578 		caps = &wm_adsp_fw[dsp->fw].caps[i];
3579 		desc = &caps->desc;
3580 
3581 		if (caps->id != params->codec.id)
3582 			continue;
3583 
3584 		if (stream->direction == SND_COMPRESS_PLAYBACK) {
3585 			if (desc->max_ch < params->codec.ch_out)
3586 				continue;
3587 		} else {
3588 			if (desc->max_ch < params->codec.ch_in)
3589 				continue;
3590 		}
3591 
3592 		if (!(desc->formats & (1 << params->codec.format)))
3593 			continue;
3594 
3595 		for (j = 0; j < desc->num_sample_rates; ++j)
3596 			if (desc->sample_rates[j] == params->codec.sample_rate)
3597 				return 0;
3598 	}
3599 
3600 	compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
3601 		  params->codec.id, params->codec.ch_in, params->codec.ch_out,
3602 		  params->codec.sample_rate, params->codec.format);
3603 	return -EINVAL;
3604 }
3605 
3606 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
3607 {
3608 	return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
3609 }
3610 
3611 int wm_adsp_compr_set_params(struct snd_soc_component *component,
3612 			     struct snd_compr_stream *stream,
3613 			     struct snd_compr_params *params)
3614 {
3615 	struct wm_adsp_compr *compr = stream->runtime->private_data;
3616 	unsigned int size;
3617 	int ret;
3618 
3619 	ret = wm_adsp_compr_check_params(stream, params);
3620 	if (ret)
3621 		return ret;
3622 
3623 	compr->size = params->buffer;
3624 
3625 	compr_dbg(compr, "fragment_size=%d fragments=%d\n",
3626 		  compr->size.fragment_size, compr->size.fragments);
3627 
3628 	size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
3629 	compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
3630 	if (!compr->raw_buf)
3631 		return -ENOMEM;
3632 
3633 	compr->sample_rate = params->codec.sample_rate;
3634 
3635 	return 0;
3636 }
3637 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
3638 
3639 int wm_adsp_compr_get_caps(struct snd_soc_component *component,
3640 			   struct snd_compr_stream *stream,
3641 			   struct snd_compr_caps *caps)
3642 {
3643 	struct wm_adsp_compr *compr = stream->runtime->private_data;
3644 	int fw = compr->dsp->fw;
3645 	int i;
3646 
3647 	if (wm_adsp_fw[fw].caps) {
3648 		for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
3649 			caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
3650 
3651 		caps->num_codecs = i;
3652 		caps->direction = wm_adsp_fw[fw].compr_direction;
3653 
3654 		caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
3655 		caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
3656 		caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
3657 		caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
3658 	}
3659 
3660 	return 0;
3661 }
3662 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
3663 
3664 static int wm_adsp_read_raw_data_block(struct wm_adsp *dsp, int mem_type,
3665 				       unsigned int mem_addr,
3666 				       unsigned int num_words, __be32 *data)
3667 {
3668 	struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
3669 	unsigned int reg;
3670 	int ret;
3671 
3672 	if (!mem)
3673 		return -EINVAL;
3674 
3675 	reg = dsp->ops->region_to_reg(mem, mem_addr);
3676 
3677 	ret = regmap_raw_read(dsp->regmap, reg, data,
3678 			      sizeof(*data) * num_words);
3679 	if (ret < 0)
3680 		return ret;
3681 
3682 	return 0;
3683 }
3684 
3685 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
3686 					 unsigned int mem_addr, u32 *data)
3687 {
3688 	__be32 raw;
3689 	int ret;
3690 
3691 	ret = wm_adsp_read_raw_data_block(dsp, mem_type, mem_addr, 1, &raw);
3692 	if (ret < 0)
3693 		return ret;
3694 
3695 	*data = be32_to_cpu(raw) & 0x00ffffffu;
3696 
3697 	return 0;
3698 }
3699 
3700 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
3701 				   unsigned int mem_addr, u32 data)
3702 {
3703 	struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
3704 	__be32 val = cpu_to_be32(data & 0x00ffffffu);
3705 	unsigned int reg;
3706 
3707 	if (!mem)
3708 		return -EINVAL;
3709 
3710 	reg = dsp->ops->region_to_reg(mem, mem_addr);
3711 
3712 	return regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
3713 }
3714 
3715 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
3716 				      unsigned int field_offset, u32 *data)
3717 {
3718 	return wm_adsp_read_data_word(buf->dsp, buf->host_buf_mem_type,
3719 				      buf->host_buf_ptr + field_offset, data);
3720 }
3721 
3722 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
3723 				       unsigned int field_offset, u32 data)
3724 {
3725 	return wm_adsp_write_data_word(buf->dsp, buf->host_buf_mem_type,
3726 				       buf->host_buf_ptr + field_offset, data);
3727 }
3728 
3729 static void wm_adsp_remove_padding(u32 *buf, int nwords)
3730 {
3731 	const __be32 *pack_in = (__be32 *)buf;
3732 	u8 *pack_out = (u8 *)buf;
3733 	int i;
3734 
3735 	/*
3736 	 * DSP words from the register map have pad bytes and the data bytes
3737 	 * are in swapped order. This swaps back to the original little-endian
3738 	 * order and strips the pad bytes.
3739 	 */
3740 	for (i = 0; i < nwords; i++) {
3741 		u32 word = be32_to_cpu(*pack_in++);
3742 		*pack_out++ = (u8)word;
3743 		*pack_out++ = (u8)(word >> 8);
3744 		*pack_out++ = (u8)(word >> 16);
3745 	}
3746 }
3747 
3748 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
3749 {
3750 	const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
3751 	struct wm_adsp_buffer_region *region;
3752 	u32 offset = 0;
3753 	int i, ret;
3754 
3755 	buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
3756 			       GFP_KERNEL);
3757 	if (!buf->regions)
3758 		return -ENOMEM;
3759 
3760 	for (i = 0; i < caps->num_regions; ++i) {
3761 		region = &buf->regions[i];
3762 
3763 		region->offset = offset;
3764 		region->mem_type = caps->region_defs[i].mem_type;
3765 
3766 		ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
3767 					  &region->base_addr);
3768 		if (ret < 0)
3769 			return ret;
3770 
3771 		ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
3772 					  &offset);
3773 		if (ret < 0)
3774 			return ret;
3775 
3776 		region->cumulative_size = offset;
3777 
3778 		compr_dbg(buf,
3779 			  "region=%d type=%d base=%08x off=%08x size=%08x\n",
3780 			  i, region->mem_type, region->base_addr,
3781 			  region->offset, region->cumulative_size);
3782 	}
3783 
3784 	return 0;
3785 }
3786 
3787 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
3788 {
3789 	buf->irq_count = 0xFFFFFFFF;
3790 	buf->read_index = -1;
3791 	buf->avail = 0;
3792 }
3793 
3794 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
3795 {
3796 	struct wm_adsp_compr_buf *buf;
3797 
3798 	buf = kzalloc(sizeof(*buf), GFP_KERNEL);
3799 	if (!buf)
3800 		return NULL;
3801 
3802 	buf->dsp = dsp;
3803 
3804 	wm_adsp_buffer_clear(buf);
3805 
3806 	list_add_tail(&buf->list, &dsp->buffer_list);
3807 
3808 	return buf;
3809 }
3810 
3811 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
3812 {
3813 	struct wm_adsp_alg_region *alg_region;
3814 	struct wm_adsp_compr_buf *buf;
3815 	u32 xmalg, addr, magic;
3816 	int i, ret;
3817 
3818 	alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
3819 	if (!alg_region) {
3820 		adsp_err(dsp, "No algorithm region found\n");
3821 		return -EINVAL;
3822 	}
3823 
3824 	buf = wm_adsp_buffer_alloc(dsp);
3825 	if (!buf)
3826 		return -ENOMEM;
3827 
3828 	xmalg = dsp->ops->sys_config_size / sizeof(__be32);
3829 
3830 	addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
3831 	ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
3832 	if (ret < 0)
3833 		return ret;
3834 
3835 	if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
3836 		return -ENODEV;
3837 
3838 	addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
3839 	for (i = 0; i < 5; ++i) {
3840 		ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
3841 					     &buf->host_buf_ptr);
3842 		if (ret < 0)
3843 			return ret;
3844 
3845 		if (buf->host_buf_ptr)
3846 			break;
3847 
3848 		usleep_range(1000, 2000);
3849 	}
3850 
3851 	if (!buf->host_buf_ptr)
3852 		return -EIO;
3853 
3854 	buf->host_buf_mem_type = WMFW_ADSP2_XM;
3855 
3856 	ret = wm_adsp_buffer_populate(buf);
3857 	if (ret < 0)
3858 		return ret;
3859 
3860 	compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
3861 
3862 	return 0;
3863 }
3864 
3865 static int wm_adsp_buffer_parse_coeff(struct wm_coeff_ctl *ctl)
3866 {
3867 	struct wm_adsp_host_buf_coeff_v1 coeff_v1;
3868 	struct wm_adsp_compr_buf *buf;
3869 	unsigned int reg, version;
3870 	__be32 bufp;
3871 	int ret, i;
3872 
3873 	ret = wm_coeff_base_reg(ctl, &reg);
3874 	if (ret)
3875 		return ret;
3876 
3877 	for (i = 0; i < 5; ++i) {
3878 		ret = regmap_raw_read(ctl->dsp->regmap, reg, &bufp, sizeof(bufp));
3879 		if (ret < 0)
3880 			return ret;
3881 
3882 		if (bufp)
3883 			break;
3884 
3885 		usleep_range(1000, 2000);
3886 	}
3887 
3888 	if (!bufp) {
3889 		adsp_err(ctl->dsp, "Failed to acquire host buffer\n");
3890 		return -EIO;
3891 	}
3892 
3893 	buf = wm_adsp_buffer_alloc(ctl->dsp);
3894 	if (!buf)
3895 		return -ENOMEM;
3896 
3897 	buf->host_buf_mem_type = ctl->alg_region.type;
3898 	buf->host_buf_ptr = be32_to_cpu(bufp);
3899 
3900 	ret = wm_adsp_buffer_populate(buf);
3901 	if (ret < 0)
3902 		return ret;
3903 
3904 	/*
3905 	 * v0 host_buffer coefficients didn't have versioning, so if the
3906 	 * control is one word, assume version 0.
3907 	 */
3908 	if (ctl->len == 4) {
3909 		compr_dbg(buf, "host_buf_ptr=%x\n", buf->host_buf_ptr);
3910 		return 0;
3911 	}
3912 
3913 	ret = regmap_raw_read(ctl->dsp->regmap, reg, &coeff_v1,
3914 			      sizeof(coeff_v1));
3915 	if (ret < 0)
3916 		return ret;
3917 
3918 	version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
3919 	version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
3920 
3921 	if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
3922 		adsp_err(ctl->dsp,
3923 			 "Host buffer coeff ver %u > supported version %u\n",
3924 			 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
3925 		return -EINVAL;
3926 	}
3927 
3928 	wm_adsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
3929 
3930 	buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", ctl->dsp->part,
3931 			      (char *)&coeff_v1.name);
3932 
3933 	compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
3934 		  buf->host_buf_ptr, version);
3935 
3936 	return version;
3937 }
3938 
3939 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
3940 {
3941 	struct wm_coeff_ctl *ctl;
3942 	int ret;
3943 
3944 	list_for_each_entry(ctl, &dsp->ctl_list, list) {
3945 		if (ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
3946 			continue;
3947 
3948 		if (!ctl->enabled)
3949 			continue;
3950 
3951 		ret = wm_adsp_buffer_parse_coeff(ctl);
3952 		if (ret < 0) {
3953 			adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
3954 			goto error;
3955 		} else if (ret == 0) {
3956 			/* Only one buffer supported for version 0 */
3957 			return 0;
3958 		}
3959 	}
3960 
3961 	if (list_empty(&dsp->buffer_list)) {
3962 		/* Fall back to legacy support */
3963 		ret = wm_adsp_buffer_parse_legacy(dsp);
3964 		if (ret) {
3965 			adsp_err(dsp, "Failed to parse legacy: %d\n", ret);
3966 			goto error;
3967 		}
3968 	}
3969 
3970 	return 0;
3971 
3972 error:
3973 	wm_adsp_buffer_free(dsp);
3974 	return ret;
3975 }
3976 
3977 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
3978 {
3979 	struct wm_adsp_compr_buf *buf, *tmp;
3980 
3981 	list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
3982 		wm_adsp_compr_detach(buf->compr);
3983 
3984 		kfree(buf->name);
3985 		kfree(buf->regions);
3986 		list_del(&buf->list);
3987 		kfree(buf);
3988 	}
3989 
3990 	return 0;
3991 }
3992 
3993 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
3994 {
3995 	int ret;
3996 
3997 	ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
3998 	if (ret < 0) {
3999 		compr_err(buf, "Failed to check buffer error: %d\n", ret);
4000 		return ret;
4001 	}
4002 	if (buf->error != 0) {
4003 		compr_err(buf, "Buffer error occurred: %d\n", buf->error);
4004 		return -EIO;
4005 	}
4006 
4007 	return 0;
4008 }
4009 
4010 int wm_adsp_compr_trigger(struct snd_soc_component *component,
4011 			  struct snd_compr_stream *stream, int cmd)
4012 {
4013 	struct wm_adsp_compr *compr = stream->runtime->private_data;
4014 	struct wm_adsp *dsp = compr->dsp;
4015 	int ret = 0;
4016 
4017 	compr_dbg(compr, "Trigger: %d\n", cmd);
4018 
4019 	mutex_lock(&dsp->pwr_lock);
4020 
4021 	switch (cmd) {
4022 	case SNDRV_PCM_TRIGGER_START:
4023 		if (!wm_adsp_compr_attached(compr)) {
4024 			ret = wm_adsp_compr_attach(compr);
4025 			if (ret < 0) {
4026 				compr_err(compr, "Failed to link buffer and stream: %d\n",
4027 					  ret);
4028 				break;
4029 			}
4030 		}
4031 
4032 		ret = wm_adsp_buffer_get_error(compr->buf);
4033 		if (ret < 0)
4034 			break;
4035 
4036 		/* Trigger the IRQ at one fragment of data */
4037 		ret = wm_adsp_buffer_write(compr->buf,
4038 					   HOST_BUFFER_FIELD(high_water_mark),
4039 					   wm_adsp_compr_frag_words(compr));
4040 		if (ret < 0) {
4041 			compr_err(compr, "Failed to set high water mark: %d\n",
4042 				  ret);
4043 			break;
4044 		}
4045 		break;
4046 	case SNDRV_PCM_TRIGGER_STOP:
4047 		if (wm_adsp_compr_attached(compr))
4048 			wm_adsp_buffer_clear(compr->buf);
4049 		break;
4050 	default:
4051 		ret = -EINVAL;
4052 		break;
4053 	}
4054 
4055 	mutex_unlock(&dsp->pwr_lock);
4056 
4057 	return ret;
4058 }
4059 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
4060 
4061 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
4062 {
4063 	int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
4064 
4065 	return buf->regions[last_region].cumulative_size;
4066 }
4067 
4068 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
4069 {
4070 	u32 next_read_index, next_write_index;
4071 	int write_index, read_index, avail;
4072 	int ret;
4073 
4074 	/* Only sync read index if we haven't already read a valid index */
4075 	if (buf->read_index < 0) {
4076 		ret = wm_adsp_buffer_read(buf,
4077 				HOST_BUFFER_FIELD(next_read_index),
4078 				&next_read_index);
4079 		if (ret < 0)
4080 			return ret;
4081 
4082 		read_index = sign_extend32(next_read_index, 23);
4083 
4084 		if (read_index < 0) {
4085 			compr_dbg(buf, "Avail check on unstarted stream\n");
4086 			return 0;
4087 		}
4088 
4089 		buf->read_index = read_index;
4090 	}
4091 
4092 	ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
4093 			&next_write_index);
4094 	if (ret < 0)
4095 		return ret;
4096 
4097 	write_index = sign_extend32(next_write_index, 23);
4098 
4099 	avail = write_index - buf->read_index;
4100 	if (avail < 0)
4101 		avail += wm_adsp_buffer_size(buf);
4102 
4103 	compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
4104 		  buf->read_index, write_index, avail * WM_ADSP_DATA_WORD_SIZE);
4105 
4106 	buf->avail = avail;
4107 
4108 	return 0;
4109 }
4110 
4111 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
4112 {
4113 	struct wm_adsp_compr_buf *buf;
4114 	struct wm_adsp_compr *compr;
4115 	int ret = 0;
4116 
4117 	mutex_lock(&dsp->pwr_lock);
4118 
4119 	if (list_empty(&dsp->buffer_list)) {
4120 		ret = -ENODEV;
4121 		goto out;
4122 	}
4123 
4124 	adsp_dbg(dsp, "Handling buffer IRQ\n");
4125 
4126 	list_for_each_entry(buf, &dsp->buffer_list, list) {
4127 		compr = buf->compr;
4128 
4129 		ret = wm_adsp_buffer_get_error(buf);
4130 		if (ret < 0)
4131 			goto out_notify; /* Wake poll to report error */
4132 
4133 		ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
4134 					  &buf->irq_count);
4135 		if (ret < 0) {
4136 			compr_err(buf, "Failed to get irq_count: %d\n", ret);
4137 			goto out;
4138 		}
4139 
4140 		ret = wm_adsp_buffer_update_avail(buf);
4141 		if (ret < 0) {
4142 			compr_err(buf, "Error reading avail: %d\n", ret);
4143 			goto out;
4144 		}
4145 
4146 		if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
4147 			ret = WM_ADSP_COMPR_VOICE_TRIGGER;
4148 
4149 out_notify:
4150 		if (compr && compr->stream)
4151 			snd_compr_fragment_elapsed(compr->stream);
4152 	}
4153 
4154 out:
4155 	mutex_unlock(&dsp->pwr_lock);
4156 
4157 	return ret;
4158 }
4159 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
4160 
4161 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
4162 {
4163 	if (buf->irq_count & 0x01)
4164 		return 0;
4165 
4166 	compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);
4167 
4168 	buf->irq_count |= 0x01;
4169 
4170 	return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
4171 				    buf->irq_count);
4172 }
4173 
4174 int wm_adsp_compr_pointer(struct snd_soc_component *component,
4175 			  struct snd_compr_stream *stream,
4176 			  struct snd_compr_tstamp *tstamp)
4177 {
4178 	struct wm_adsp_compr *compr = stream->runtime->private_data;
4179 	struct wm_adsp *dsp = compr->dsp;
4180 	struct wm_adsp_compr_buf *buf;
4181 	int ret = 0;
4182 
4183 	compr_dbg(compr, "Pointer request\n");
4184 
4185 	mutex_lock(&dsp->pwr_lock);
4186 
4187 	buf = compr->buf;
4188 
4189 	if (dsp->fatal_error || !buf || buf->error) {
4190 		snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
4191 		ret = -EIO;
4192 		goto out;
4193 	}
4194 
4195 	if (buf->avail < wm_adsp_compr_frag_words(compr)) {
4196 		ret = wm_adsp_buffer_update_avail(buf);
4197 		if (ret < 0) {
4198 			compr_err(compr, "Error reading avail: %d\n", ret);
4199 			goto out;
4200 		}
4201 
4202 		/*
4203 		 * If we really have less than 1 fragment available tell the
4204 		 * DSP to inform us once a whole fragment is available.
4205 		 */
4206 		if (buf->avail < wm_adsp_compr_frag_words(compr)) {
4207 			ret = wm_adsp_buffer_get_error(buf);
4208 			if (ret < 0) {
4209 				if (buf->error)
4210 					snd_compr_stop_error(stream,
4211 							SNDRV_PCM_STATE_XRUN);
4212 				goto out;
4213 			}
4214 
4215 			ret = wm_adsp_buffer_reenable_irq(buf);
4216 			if (ret < 0) {
4217 				compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
4218 					  ret);
4219 				goto out;
4220 			}
4221 		}
4222 	}
4223 
4224 	tstamp->copied_total = compr->copied_total;
4225 	tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
4226 	tstamp->sampling_rate = compr->sample_rate;
4227 
4228 out:
4229 	mutex_unlock(&dsp->pwr_lock);
4230 
4231 	return ret;
4232 }
4233 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
4234 
4235 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
4236 {
4237 	struct wm_adsp_compr_buf *buf = compr->buf;
4238 	unsigned int adsp_addr;
4239 	int mem_type, nwords, max_read;
4240 	int i, ret;
4241 
4242 	/* Calculate read parameters */
4243 	for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
4244 		if (buf->read_index < buf->regions[i].cumulative_size)
4245 			break;
4246 
4247 	if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
4248 		return -EINVAL;
4249 
4250 	mem_type = buf->regions[i].mem_type;
4251 	adsp_addr = buf->regions[i].base_addr +
4252 		    (buf->read_index - buf->regions[i].offset);
4253 
4254 	max_read = wm_adsp_compr_frag_words(compr);
4255 	nwords = buf->regions[i].cumulative_size - buf->read_index;
4256 
4257 	if (nwords > target)
4258 		nwords = target;
4259 	if (nwords > buf->avail)
4260 		nwords = buf->avail;
4261 	if (nwords > max_read)
4262 		nwords = max_read;
4263 	if (!nwords)
4264 		return 0;
4265 
4266 	/* Read data from DSP */
4267 	ret = wm_adsp_read_raw_data_block(buf->dsp, mem_type, adsp_addr,
4268 					  nwords, (__be32 *)compr->raw_buf);
4269 	if (ret < 0)
4270 		return ret;
4271 
4272 	wm_adsp_remove_padding(compr->raw_buf, nwords);
4273 
4274 	/* update read index to account for words read */
4275 	buf->read_index += nwords;
4276 	if (buf->read_index == wm_adsp_buffer_size(buf))
4277 		buf->read_index = 0;
4278 
4279 	ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
4280 				   buf->read_index);
4281 	if (ret < 0)
4282 		return ret;
4283 
4284 	/* update avail to account for words read */
4285 	buf->avail -= nwords;
4286 
4287 	return nwords;
4288 }
4289 
4290 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
4291 			      char __user *buf, size_t count)
4292 {
4293 	struct wm_adsp *dsp = compr->dsp;
4294 	int ntotal = 0;
4295 	int nwords, nbytes;
4296 
4297 	compr_dbg(compr, "Requested read of %zu bytes\n", count);
4298 
4299 	if (dsp->fatal_error || !compr->buf || compr->buf->error) {
4300 		snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
4301 		return -EIO;
4302 	}
4303 
4304 	count /= WM_ADSP_DATA_WORD_SIZE;
4305 
4306 	do {
4307 		nwords = wm_adsp_buffer_capture_block(compr, count);
4308 		if (nwords < 0) {
4309 			compr_err(compr, "Failed to capture block: %d\n",
4310 				  nwords);
4311 			return nwords;
4312 		}
4313 
4314 		nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
4315 
4316 		compr_dbg(compr, "Read %d bytes\n", nbytes);
4317 
4318 		if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
4319 			compr_err(compr, "Failed to copy data to user: %d, %d\n",
4320 				  ntotal, nbytes);
4321 			return -EFAULT;
4322 		}
4323 
4324 		count -= nwords;
4325 		ntotal += nbytes;
4326 	} while (nwords > 0 && count > 0);
4327 
4328 	compr->copied_total += ntotal;
4329 
4330 	return ntotal;
4331 }
4332 
4333 int wm_adsp_compr_copy(struct snd_soc_component *component,
4334 		       struct snd_compr_stream *stream, char __user *buf,
4335 		       size_t count)
4336 {
4337 	struct wm_adsp_compr *compr = stream->runtime->private_data;
4338 	struct wm_adsp *dsp = compr->dsp;
4339 	int ret;
4340 
4341 	mutex_lock(&dsp->pwr_lock);
4342 
4343 	if (stream->direction == SND_COMPRESS_CAPTURE)
4344 		ret = wm_adsp_compr_read(compr, buf, count);
4345 	else
4346 		ret = -ENOTSUPP;
4347 
4348 	mutex_unlock(&dsp->pwr_lock);
4349 
4350 	return ret;
4351 }
4352 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
4353 
4354 static void wm_adsp_fatal_error(struct wm_adsp *dsp)
4355 {
4356 	struct wm_adsp_compr *compr;
4357 
4358 	dsp->fatal_error = true;
4359 
4360 	list_for_each_entry(compr, &dsp->compr_list, list) {
4361 		if (compr->stream)
4362 			snd_compr_fragment_elapsed(compr->stream);
4363 	}
4364 }
4365 
4366 irqreturn_t wm_adsp2_bus_error(int irq, void *data)
4367 {
4368 	struct wm_adsp *dsp = (struct wm_adsp *)data;
4369 	unsigned int val;
4370 	struct regmap *regmap = dsp->regmap;
4371 	int ret = 0;
4372 
4373 	mutex_lock(&dsp->pwr_lock);
4374 
4375 	ret = regmap_read(regmap, dsp->base + ADSP2_LOCK_REGION_CTRL, &val);
4376 	if (ret) {
4377 		adsp_err(dsp,
4378 			"Failed to read Region Lock Ctrl register: %d\n", ret);
4379 		goto error;
4380 	}
4381 
4382 	if (val & ADSP2_WDT_TIMEOUT_STS_MASK) {
4383 		adsp_err(dsp, "watchdog timeout error\n");
4384 		dsp->ops->stop_watchdog(dsp);
4385 		wm_adsp_fatal_error(dsp);
4386 	}
4387 
4388 	if (val & (ADSP2_ADDR_ERR_MASK | ADSP2_REGION_LOCK_ERR_MASK)) {
4389 		if (val & ADSP2_ADDR_ERR_MASK)
4390 			adsp_err(dsp, "bus error: address error\n");
4391 		else
4392 			adsp_err(dsp, "bus error: region lock error\n");
4393 
4394 		ret = regmap_read(regmap, dsp->base + ADSP2_BUS_ERR_ADDR, &val);
4395 		if (ret) {
4396 			adsp_err(dsp,
4397 				 "Failed to read Bus Err Addr register: %d\n",
4398 				 ret);
4399 			goto error;
4400 		}
4401 
4402 		adsp_err(dsp, "bus error address = 0x%x\n",
4403 			 val & ADSP2_BUS_ERR_ADDR_MASK);
4404 
4405 		ret = regmap_read(regmap,
4406 				  dsp->base + ADSP2_PMEM_ERR_ADDR_XMEM_ERR_ADDR,
4407 				  &val);
4408 		if (ret) {
4409 			adsp_err(dsp,
4410 				 "Failed to read Pmem Xmem Err Addr register: %d\n",
4411 				 ret);
4412 			goto error;
4413 		}
4414 
4415 		adsp_err(dsp, "xmem error address = 0x%x\n",
4416 			 val & ADSP2_XMEM_ERR_ADDR_MASK);
4417 		adsp_err(dsp, "pmem error address = 0x%x\n",
4418 			 (val & ADSP2_PMEM_ERR_ADDR_MASK) >>
4419 			 ADSP2_PMEM_ERR_ADDR_SHIFT);
4420 	}
4421 
4422 	regmap_update_bits(regmap, dsp->base + ADSP2_LOCK_REGION_CTRL,
4423 			   ADSP2_CTRL_ERR_EINT, ADSP2_CTRL_ERR_EINT);
4424 
4425 error:
4426 	mutex_unlock(&dsp->pwr_lock);
4427 
4428 	return IRQ_HANDLED;
4429 }
4430 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
4431 
4432 irqreturn_t wm_halo_bus_error(int irq, void *data)
4433 {
4434 	struct wm_adsp *dsp = (struct wm_adsp *)data;
4435 	struct regmap *regmap = dsp->regmap;
4436 	unsigned int fault[6];
4437 	struct reg_sequence clear[] = {
4438 		{ dsp->base + HALO_MPU_XM_VIO_STATUS,     0x0 },
4439 		{ dsp->base + HALO_MPU_YM_VIO_STATUS,     0x0 },
4440 		{ dsp->base + HALO_MPU_PM_VIO_STATUS,     0x0 },
4441 	};
4442 	int ret;
4443 
4444 	mutex_lock(&dsp->pwr_lock);
4445 
4446 	ret = regmap_read(regmap, dsp->base_sysinfo + HALO_AHBM_WINDOW_DEBUG_1,
4447 			  fault);
4448 	if (ret) {
4449 		adsp_warn(dsp, "Failed to read AHB DEBUG_1: %d\n", ret);
4450 		goto exit_unlock;
4451 	}
4452 
4453 	adsp_warn(dsp, "AHB: STATUS: 0x%x ADDR: 0x%x\n",
4454 		  *fault & HALO_AHBM_FLAGS_ERR_MASK,
4455 		  (*fault & HALO_AHBM_CORE_ERR_ADDR_MASK) >>
4456 		  HALO_AHBM_CORE_ERR_ADDR_SHIFT);
4457 
4458 	ret = regmap_read(regmap, dsp->base_sysinfo + HALO_AHBM_WINDOW_DEBUG_0,
4459 			  fault);
4460 	if (ret) {
4461 		adsp_warn(dsp, "Failed to read AHB DEBUG_0: %d\n", ret);
4462 		goto exit_unlock;
4463 	}
4464 
4465 	adsp_warn(dsp, "AHB: SYS_ADDR: 0x%x\n", *fault);
4466 
4467 	ret = regmap_bulk_read(regmap, dsp->base + HALO_MPU_XM_VIO_ADDR,
4468 			       fault, ARRAY_SIZE(fault));
4469 	if (ret) {
4470 		adsp_warn(dsp, "Failed to read MPU fault info: %d\n", ret);
4471 		goto exit_unlock;
4472 	}
4473 
4474 	adsp_warn(dsp, "XM: STATUS:0x%x ADDR:0x%x\n", fault[1], fault[0]);
4475 	adsp_warn(dsp, "YM: STATUS:0x%x ADDR:0x%x\n", fault[3], fault[2]);
4476 	adsp_warn(dsp, "PM: STATUS:0x%x ADDR:0x%x\n", fault[5], fault[4]);
4477 
4478 	ret = regmap_multi_reg_write(dsp->regmap, clear, ARRAY_SIZE(clear));
4479 	if (ret)
4480 		adsp_warn(dsp, "Failed to clear MPU status: %d\n", ret);
4481 
4482 exit_unlock:
4483 	mutex_unlock(&dsp->pwr_lock);
4484 
4485 	return IRQ_HANDLED;
4486 }
4487 EXPORT_SYMBOL_GPL(wm_halo_bus_error);
4488 
4489 irqreturn_t wm_halo_wdt_expire(int irq, void *data)
4490 {
4491 	struct wm_adsp *dsp = data;
4492 
4493 	mutex_lock(&dsp->pwr_lock);
4494 
4495 	adsp_warn(dsp, "WDT Expiry Fault\n");
4496 	dsp->ops->stop_watchdog(dsp);
4497 	wm_adsp_fatal_error(dsp);
4498 
4499 	mutex_unlock(&dsp->pwr_lock);
4500 
4501 	return IRQ_HANDLED;
4502 }
4503 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
4504 
4505 static const struct wm_adsp_ops wm_adsp1_ops = {
4506 	.validate_version = wm_adsp_validate_version,
4507 	.parse_sizes = wm_adsp1_parse_sizes,
4508 	.region_to_reg = wm_adsp_region_to_reg,
4509 };
4510 
4511 static const struct wm_adsp_ops wm_adsp2_ops[] = {
4512 	{
4513 		.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
4514 		.parse_sizes = wm_adsp2_parse_sizes,
4515 		.validate_version = wm_adsp_validate_version,
4516 		.setup_algs = wm_adsp2_setup_algs,
4517 		.region_to_reg = wm_adsp_region_to_reg,
4518 
4519 		.show_fw_status = wm_adsp2_show_fw_status,
4520 
4521 		.enable_memory = wm_adsp2_enable_memory,
4522 		.disable_memory = wm_adsp2_disable_memory,
4523 
4524 		.enable_core = wm_adsp2_enable_core,
4525 		.disable_core = wm_adsp2_disable_core,
4526 
4527 		.start_core = wm_adsp2_start_core,
4528 		.stop_core = wm_adsp2_stop_core,
4529 
4530 	},
4531 	{
4532 		.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
4533 		.parse_sizes = wm_adsp2_parse_sizes,
4534 		.validate_version = wm_adsp_validate_version,
4535 		.setup_algs = wm_adsp2_setup_algs,
4536 		.region_to_reg = wm_adsp_region_to_reg,
4537 
4538 		.show_fw_status = wm_adsp2v2_show_fw_status,
4539 
4540 		.enable_memory = wm_adsp2_enable_memory,
4541 		.disable_memory = wm_adsp2_disable_memory,
4542 		.lock_memory = wm_adsp2_lock,
4543 
4544 		.enable_core = wm_adsp2v2_enable_core,
4545 		.disable_core = wm_adsp2v2_disable_core,
4546 
4547 		.start_core = wm_adsp2_start_core,
4548 		.stop_core = wm_adsp2_stop_core,
4549 	},
4550 	{
4551 		.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
4552 		.parse_sizes = wm_adsp2_parse_sizes,
4553 		.validate_version = wm_adsp_validate_version,
4554 		.setup_algs = wm_adsp2_setup_algs,
4555 		.region_to_reg = wm_adsp_region_to_reg,
4556 
4557 		.show_fw_status = wm_adsp2v2_show_fw_status,
4558 		.stop_watchdog = wm_adsp_stop_watchdog,
4559 
4560 		.enable_memory = wm_adsp2_enable_memory,
4561 		.disable_memory = wm_adsp2_disable_memory,
4562 		.lock_memory = wm_adsp2_lock,
4563 
4564 		.enable_core = wm_adsp2v2_enable_core,
4565 		.disable_core = wm_adsp2v2_disable_core,
4566 
4567 		.start_core = wm_adsp2_start_core,
4568 		.stop_core = wm_adsp2_stop_core,
4569 	},
4570 };
4571 
4572 static const struct wm_adsp_ops wm_halo_ops = {
4573 	.sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr),
4574 	.parse_sizes = wm_adsp2_parse_sizes,
4575 	.validate_version = wm_halo_validate_version,
4576 	.setup_algs = wm_halo_setup_algs,
4577 	.region_to_reg = wm_halo_region_to_reg,
4578 
4579 	.show_fw_status = wm_halo_show_fw_status,
4580 	.stop_watchdog = wm_halo_stop_watchdog,
4581 
4582 	.lock_memory = wm_halo_configure_mpu,
4583 
4584 	.start_core = wm_halo_start_core,
4585 	.stop_core = wm_halo_stop_core,
4586 };
4587 
4588 MODULE_LICENSE("GPL v2");
4589