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33d740e07d
linux-next/sound/soc/codecs/wm_adsp.c
Charles Keepax 33d740e07d ASoC: wm_adsp: Show avail in bytes to match other messages 
All other debug messages talk about data on the compressed stream in
bytes except avail which is shown in words. To avoid confusion show
avail in bytes as well.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-29 10:11:10 -07:00

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/*
* wm_adsp.c -- Wolfson ADSP support
*
* Copyright 2012 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/list.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "wm_adsp.h"
#define adsp_crit(_dsp, fmt, ...) \
dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_err(_dsp, fmt, ...) \
dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_warn(_dsp, fmt, ...) \
dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_info(_dsp, fmt, ...) \
dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_dbg(_dsp, fmt, ...) \
dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define ADSP1_CONTROL_1 0x00
#define ADSP1_CONTROL_2 0x02
#define ADSP1_CONTROL_3 0x03
#define ADSP1_CONTROL_4 0x04
#define ADSP1_CONTROL_5 0x06
#define ADSP1_CONTROL_6 0x07
#define ADSP1_CONTROL_7 0x08
#define ADSP1_CONTROL_8 0x09
#define ADSP1_CONTROL_9 0x0A
#define ADSP1_CONTROL_10 0x0B
#define ADSP1_CONTROL_11 0x0C
#define ADSP1_CONTROL_12 0x0D
#define ADSP1_CONTROL_13 0x0F
#define ADSP1_CONTROL_14 0x10
#define ADSP1_CONTROL_15 0x11
#define ADSP1_CONTROL_16 0x12
#define ADSP1_CONTROL_17 0x13
#define ADSP1_CONTROL_18 0x14
#define ADSP1_CONTROL_19 0x16
#define ADSP1_CONTROL_20 0x17
#define ADSP1_CONTROL_21 0x18
#define ADSP1_CONTROL_22 0x1A
#define ADSP1_CONTROL_23 0x1B
#define ADSP1_CONTROL_24 0x1C
#define ADSP1_CONTROL_25 0x1E
#define ADSP1_CONTROL_26 0x20
#define ADSP1_CONTROL_27 0x21
#define ADSP1_CONTROL_28 0x22
#define ADSP1_CONTROL_29 0x23
#define ADSP1_CONTROL_30 0x24
#define ADSP1_CONTROL_31 0x26
/*
* ADSP1 Control 19
*/
#define ADSP1_WDMA_BUFFER_LENGTH_MASK 0x00FF /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_SHIFT 0 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_WIDTH 8 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
/*
* ADSP1 Control 30
*/
#define ADSP1_DBG_CLK_ENA 0x0008 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_MASK 0x0008 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_SHIFT 3 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_WIDTH 1 /* DSP1_DBG_CLK_ENA */
#define ADSP1_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
#define ADSP1_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
#define ADSP1_START 0x0001 /* DSP1_START */
#define ADSP1_START_MASK 0x0001 /* DSP1_START */
#define ADSP1_START_SHIFT 0 /* DSP1_START */
#define ADSP1_START_WIDTH 1 /* DSP1_START */
/*
* ADSP1 Control 31
*/
#define ADSP1_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
#define ADSP1_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
#define ADSP1_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
#define ADSP2_CONTROL 0x0
#define ADSP2_CLOCKING 0x1
#define ADSP2_STATUS1 0x4
#define ADSP2_WDMA_CONFIG_1 0x30
#define ADSP2_WDMA_CONFIG_2 0x31
#define ADSP2_RDMA_CONFIG_1 0x34
#define ADSP2_SCRATCH0 0x40
#define ADSP2_SCRATCH1 0x41
#define ADSP2_SCRATCH2 0x42
#define ADSP2_SCRATCH3 0x43
/*
* ADSP2 Control
*/
#define ADSP2_MEM_ENA 0x0010 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_MASK 0x0010 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_SHIFT 4 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_WIDTH 1 /* DSP1_MEM_ENA */
#define ADSP2_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
#define ADSP2_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
#define ADSP2_START 0x0001 /* DSP1_START */
#define ADSP2_START_MASK 0x0001 /* DSP1_START */
#define ADSP2_START_SHIFT 0 /* DSP1_START */
#define ADSP2_START_WIDTH 1 /* DSP1_START */
/*
* ADSP2 clocking
*/
#define ADSP2_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
#define ADSP2_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
#define ADSP2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
/*
* ADSP2 Status 1
*/
#define ADSP2_RAM_RDY 0x0001
#define ADSP2_RAM_RDY_MASK 0x0001
#define ADSP2_RAM_RDY_SHIFT 0
#define ADSP2_RAM_RDY_WIDTH 1
struct wm_adsp_buf {
struct list_head list;
void *buf;
};
static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
struct list_head *list)
{
struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (buf == NULL)
return NULL;
buf->buf = vmalloc(len);
if (!buf->buf) {
vfree(buf);
return NULL;
}
memcpy(buf->buf, src, len);
if (list)
list_add_tail(&buf->list, list);
return buf;
}
static void wm_adsp_buf_free(struct list_head *list)
{
while (!list_empty(list)) {
struct wm_adsp_buf *buf = list_first_entry(list,
struct wm_adsp_buf,
list);
list_del(&buf->list);
vfree(buf->buf);
kfree(buf);
}
}
#define WM_ADSP_FW_MBC_VSS 0
#define WM_ADSP_FW_HIFI 1
#define WM_ADSP_FW_TX 2
#define WM_ADSP_FW_TX_SPK 3
#define WM_ADSP_FW_RX 4
#define WM_ADSP_FW_RX_ANC 5
#define WM_ADSP_FW_CTRL 6
#define WM_ADSP_FW_ASR 7
#define WM_ADSP_FW_TRACE 8
#define WM_ADSP_FW_SPK_PROT 9
#define WM_ADSP_FW_MISC 10
#define WM_ADSP_NUM_FW 11
static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
[WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
[WM_ADSP_FW_HIFI] = "MasterHiFi",
[WM_ADSP_FW_TX] = "Tx",
[WM_ADSP_FW_TX_SPK] = "Tx Speaker",
[WM_ADSP_FW_RX] = "Rx",
[WM_ADSP_FW_RX_ANC] = "Rx ANC",
[WM_ADSP_FW_CTRL] = "Voice Ctrl",
[WM_ADSP_FW_ASR] = "ASR Assist",
[WM_ADSP_FW_TRACE] = "Dbg Trace",
[WM_ADSP_FW_SPK_PROT] = "Protection",
[WM_ADSP_FW_MISC] = "Misc",
};
struct wm_adsp_system_config_xm_hdr {
__be32 sys_enable;
__be32 fw_id;
__be32 fw_rev;
__be32 boot_status;
__be32 watchdog;
__be32 dma_buffer_size;
__be32 rdma[6];
__be32 wdma[8];
__be32 build_job_name[3];
__be32 build_job_number;
};
struct wm_adsp_alg_xm_struct {
__be32 magic;
__be32 smoothing;
__be32 threshold;
__be32 host_buf_ptr;
__be32 start_seq;
__be32 high_water_mark;
__be32 low_water_mark;
__be64 smoothed_power;
};
struct wm_adsp_buffer {
__be32 X_buf_base; /* XM base addr of first X area */
__be32 X_buf_size; /* Size of 1st X area in words */
__be32 X_buf_base2; /* XM base addr of 2nd X area */
__be32 X_buf_brk; /* Total X size in words */
__be32 Y_buf_base; /* YM base addr of Y area */
__be32 wrap; /* Total size X and Y in words */
__be32 high_water_mark; /* Point at which IRQ is asserted */
__be32 irq_count; /* bits 1-31 count IRQ assertions */
__be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
__be32 next_write_index; /* word index of next write */
__be32 next_read_index; /* word index of next read */
__be32 error; /* error if any */
__be32 oldest_block_index; /* word index of oldest surviving */
__be32 requested_rewind; /* how many blocks rewind was done */
__be32 reserved_space; /* internal */
__be32 min_free; /* min free space since stream start */
__be32 blocks_written[2]; /* total blocks written (64 bit) */
__be32 words_written[2]; /* total words written (64 bit) */
};
struct wm_adsp_compr_buf {
struct wm_adsp *dsp;
struct wm_adsp_buffer_region *regions;
u32 host_buf_ptr;
u32 error;
u32 irq_count;
int read_index;
int avail;
};
struct wm_adsp_compr {
struct wm_adsp *dsp;
struct wm_adsp_compr_buf *buf;
struct snd_compr_stream *stream;
struct snd_compressed_buffer size;
u32 *raw_buf;
unsigned int copied_total;
unsigned int sample_rate;
};
#define WM_ADSP_DATA_WORD_SIZE 3
#define WM_ADSP_MIN_FRAGMENTS 1
#define WM_ADSP_MAX_FRAGMENTS 256
#define WM_ADSP_MIN_FRAGMENT_SIZE (64 * WM_ADSP_DATA_WORD_SIZE)
#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * WM_ADSP_DATA_WORD_SIZE)
#define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
#define HOST_BUFFER_FIELD(field) \
(offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
#define ALG_XM_FIELD(field) \
(offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
static int wm_adsp_buffer_init(struct wm_adsp *dsp);
static int wm_adsp_buffer_free(struct wm_adsp *dsp);
struct wm_adsp_buffer_region {
unsigned int offset;
unsigned int cumulative_size;
unsigned int mem_type;
unsigned int base_addr;
};
struct wm_adsp_buffer_region_def {
unsigned int mem_type;
unsigned int base_offset;
unsigned int size_offset;
};
static const struct wm_adsp_buffer_region_def default_regions[] = {
{
.mem_type = WMFW_ADSP2_XM,
.base_offset = HOST_BUFFER_FIELD(X_buf_base),
.size_offset = HOST_BUFFER_FIELD(X_buf_size),
},
{
.mem_type = WMFW_ADSP2_XM,
.base_offset = HOST_BUFFER_FIELD(X_buf_base2),
.size_offset = HOST_BUFFER_FIELD(X_buf_brk),
},
{
.mem_type = WMFW_ADSP2_YM,
.base_offset = HOST_BUFFER_FIELD(Y_buf_base),
.size_offset = HOST_BUFFER_FIELD(wrap),
},
};
struct wm_adsp_fw_caps {
u32 id;
struct snd_codec_desc desc;
int num_regions;
const struct wm_adsp_buffer_region_def *region_defs;
};
static const struct wm_adsp_fw_caps ctrl_caps[] = {
{
.id = SND_AUDIOCODEC_BESPOKE,
.desc = {
.max_ch = 1,
.sample_rates = { 16000 },
.num_sample_rates = 1,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.num_regions = ARRAY_SIZE(default_regions),
.region_defs = default_regions,
},
};
static const struct wm_adsp_fw_caps trace_caps[] = {
{
.id = SND_AUDIOCODEC_BESPOKE,
.desc = {
.max_ch = 8,
.sample_rates = {
4000, 8000, 11025, 12000, 16000, 22050,
24000, 32000, 44100, 48000, 64000, 88200,
96000, 176400, 192000
},
.num_sample_rates = 15,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.num_regions = ARRAY_SIZE(default_regions),
.region_defs = default_regions,
},
};
static const struct {
const char *file;
int compr_direction;
int num_caps;
const struct wm_adsp_fw_caps *caps;
} wm_adsp_fw[WM_ADSP_NUM_FW] = {
[WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
[WM_ADSP_FW_HIFI] = { .file = "hifi" },
[WM_ADSP_FW_TX] = { .file = "tx" },
[WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
[WM_ADSP_FW_RX] = { .file = "rx" },
[WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
[WM_ADSP_FW_CTRL] = {
.file = "ctrl",
.compr_direction = SND_COMPRESS_CAPTURE,
.num_caps = ARRAY_SIZE(ctrl_caps),
.caps = ctrl_caps,
},
[WM_ADSP_FW_ASR] = { .file = "asr" },
[WM_ADSP_FW_TRACE] = {
.file = "trace",
.compr_direction = SND_COMPRESS_CAPTURE,
.num_caps = ARRAY_SIZE(trace_caps),
.caps = trace_caps,
},
[WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
[WM_ADSP_FW_MISC] = { .file = "misc" },
};
struct wm_coeff_ctl_ops {
int (*xget)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int (*xput)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int (*xinfo)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
};
struct wm_coeff_ctl {
const char *name;
const char *fw_name;
struct wm_adsp_alg_region alg_region;
struct wm_coeff_ctl_ops ops;
struct wm_adsp *dsp;
unsigned int enabled:1;
struct list_head list;
void *cache;
unsigned int offset;
size_t len;
unsigned int set:1;
struct snd_kcontrol *kcontrol;
unsigned int flags;
};
#ifdef CONFIG_DEBUG_FS
static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
{
char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
kfree(dsp->wmfw_file_name);
dsp->wmfw_file_name = tmp;
}
static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
{
char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
kfree(dsp->bin_file_name);
dsp->bin_file_name = tmp;
}
static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
{
kfree(dsp->wmfw_file_name);
kfree(dsp->bin_file_name);
dsp->wmfw_file_name = NULL;
dsp->bin_file_name = NULL;
}
static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wm_adsp *dsp = file->private_data;
ssize_t ret;
mutex_lock(&dsp->pwr_lock);
if (!dsp->wmfw_file_name || !dsp->running)
ret = 0;
else
ret = simple_read_from_buffer(user_buf, count, ppos,
dsp->wmfw_file_name,
strlen(dsp->wmfw_file_name));
mutex_unlock(&dsp->pwr_lock);
return ret;
}
static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wm_adsp *dsp = file->private_data;
ssize_t ret;
mutex_lock(&dsp->pwr_lock);
if (!dsp->bin_file_name || !dsp->running)
ret = 0;
else
ret = simple_read_from_buffer(user_buf, count, ppos,
dsp->bin_file_name,
strlen(dsp->bin_file_name));
mutex_unlock(&dsp->pwr_lock);
return ret;
}
static const struct {
const char *name;
const struct file_operations fops;
} wm_adsp_debugfs_fops[] = {
{
.name = "wmfw_file_name",
.fops = {
.open = simple_open,
.read = wm_adsp_debugfs_wmfw_read,
},
},
{
.name = "bin_file_name",
.fops = {
.open = simple_open,
.read = wm_adsp_debugfs_bin_read,
},
},
};
static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
struct snd_soc_codec *codec)
{
struct dentry *root = NULL;
char *root_name;
int i;
if (!codec->component.debugfs_root) {
adsp_err(dsp, "No codec debugfs root\n");
goto err;
}
root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!root_name)
goto err;
snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
root = debugfs_create_dir(root_name, codec->component.debugfs_root);
kfree(root_name);
if (!root)
goto err;
if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
goto err;
if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
goto err;
if (!debugfs_create_x32("fw_version", S_IRUGO, root,
&dsp->fw_id_version))
goto err;
for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
S_IRUGO, root, dsp,
&wm_adsp_debugfs_fops[i].fops))
goto err;
}
dsp->debugfs_root = root;
return;
err:
debugfs_remove_recursive(root);
adsp_err(dsp, "Failed to create debugfs\n");
}
static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
wm_adsp_debugfs_clear(dsp);
debugfs_remove_recursive(dsp->debugfs_root);
}
#else
static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
struct snd_soc_codec *codec)
{
}
static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
}
static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
const char *s)
{
}
static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
const char *s)
{
}
static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
{
}
#endif
static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
return 0;
}
static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
int ret = 0;
if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
return 0;
if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
return -EINVAL;
mutex_lock(&dsp[e->shift_l].pwr_lock);
if (dsp[e->shift_l].running || dsp[e->shift_l].compr)
ret = -EBUSY;
else
dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
mutex_unlock(&dsp[e->shift_l].pwr_lock);
return ret;
}
static const struct soc_enum wm_adsp_fw_enum[] = {
SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
};
const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
wm_adsp_fw_get, wm_adsp_fw_put),
SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
wm_adsp_fw_get, wm_adsp_fw_put),
SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
wm_adsp_fw_get, wm_adsp_fw_put),
SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
wm_adsp_fw_get, wm_adsp_fw_put),
};
EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
int type)
{
int i;
for (i = 0; i < dsp->num_mems; i++)
if (dsp->mem[i].type == type)
return &dsp->mem[i];
return NULL;
}
static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
unsigned int offset)
{
if (WARN_ON(!mem))
return offset;
switch (mem->type) {
case WMFW_ADSP1_PM:
return mem->base + (offset * 3);
case WMFW_ADSP1_DM:
return mem->base + (offset * 2);
case WMFW_ADSP2_XM:
return mem->base + (offset * 2);
case WMFW_ADSP2_YM:
return mem->base + (offset * 2);
case WMFW_ADSP1_ZM:
return mem->base + (offset * 2);
default:
WARN(1, "Unknown memory region type");
return offset;
}
}
static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
{
u16 scratch[4];
int ret;
ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
scratch, sizeof(scratch));
if (ret) {
adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
return;
}
adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
be16_to_cpu(scratch[0]),
be16_to_cpu(scratch[1]),
be16_to_cpu(scratch[2]),
be16_to_cpu(scratch[3]));
}
static int wm_coeff_info(struct snd_kcontrol *kctl,
struct snd_ctl_elem_info *uinfo)
{
struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
uinfo->count = ctl->len;
return 0;
}
static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
const void *buf, size_t len)
{
struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
const struct wm_adsp_region *mem;
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
reg = ctl->alg_region.base + ctl->offset;
reg = wm_adsp_region_to_reg(mem, reg);
scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
if (!scratch)
return -ENOMEM;
ret = regmap_raw_write(dsp->regmap, reg, scratch,
len);
if (ret) {
adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
len, reg, ret);
kfree(scratch);
return ret;
}
adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
kfree(scratch);
return 0;
}
static int wm_coeff_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
char *p = ucontrol->value.bytes.data;
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
memcpy(ctl->cache, p, ctl->len);
ctl->set = 1;
if (ctl->enabled)
ret = wm_coeff_write_control(ctl, p, ctl->len);
mutex_unlock(&ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
void *buf, size_t len)
{
struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
const struct wm_adsp_region *mem;
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
reg = ctl->alg_region.base + ctl->offset;
reg = wm_adsp_region_to_reg(mem, reg);
scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
if (!scratch)
return -ENOMEM;
ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
if (ret) {
adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
len, reg, ret);
kfree(scratch);
return ret;
}
adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
memcpy(buf, scratch, len);
kfree(scratch);
return 0;
}
static int wm_coeff_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
char *p = ucontrol->value.bytes.data;
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
if (ctl->enabled)
ret = wm_coeff_read_control(ctl, p, ctl->len);
else
ret = -EPERM;
} else {
if (!ctl->flags && ctl->enabled)
ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
memcpy(p, ctl->cache, ctl->len);
}
mutex_unlock(&ctl->dsp->pwr_lock);
return ret;
}
struct wmfw_ctl_work {
struct wm_adsp *dsp;
struct wm_coeff_ctl *ctl;
struct work_struct work;
};
static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
{
struct snd_kcontrol_new *kcontrol;
int ret;
if (!ctl || !ctl->name)
return -EINVAL;
kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
if (!kcontrol)
return -ENOMEM;
kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kcontrol->name = ctl->name;
kcontrol->info = wm_coeff_info;
kcontrol->get = wm_coeff_get;
kcontrol->put = wm_coeff_put;
kcontrol->private_value = (unsigned long)ctl;
if (ctl->flags) {
if (ctl->flags & WMFW_CTL_FLAG_WRITEABLE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
if (ctl->flags & WMFW_CTL_FLAG_READABLE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_READ;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
} else {
kcontrol->access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
}
ret = snd_soc_add_card_controls(dsp->card, kcontrol, 1);
if (ret < 0)
goto err_kcontrol;
kfree(kcontrol);
ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
return 0;
err_kcontrol:
kfree(kcontrol);
return ret;
}
static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled || ctl->set)
continue;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
continue;
ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
if (ret < 0)
return ret;
}
return 0;
}
static int wm_coeff_sync_controls(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled)
continue;
if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
if (ret < 0)
return ret;
}
}
return 0;
}
static void wm_adsp_ctl_work(struct work_struct *work)
{
struct wmfw_ctl_work *ctl_work = container_of(work,
struct wmfw_ctl_work,
work);
wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
kfree(ctl_work);
}
static int wm_adsp_create_control(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region,
unsigned int offset, unsigned int len,
const char *subname, unsigned int subname_len,
unsigned int flags)
{
struct wm_coeff_ctl *ctl;
struct wmfw_ctl_work *ctl_work;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char *region_name;
int ret;
if (flags & WMFW_CTL_FLAG_SYS)
return 0;
switch (alg_region->type) {
case WMFW_ADSP1_PM:
region_name = "PM";
break;
case WMFW_ADSP1_DM:
region_name = "DM";
break;
case WMFW_ADSP2_XM:
region_name = "XM";
break;
case WMFW_ADSP2_YM:
region_name = "YM";
break;
case WMFW_ADSP1_ZM:
region_name = "ZM";
break;
default:
adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
return -EINVAL;
}
switch (dsp->fw_ver) {
case 0:
case 1:
snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
dsp->num, region_name, alg_region->alg);
break;
default:
ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"DSP%d%c %.12s %x", dsp->num, *region_name,
wm_adsp_fw_text[dsp->fw], alg_region->alg);
/* Truncate the subname from the start if it is too long */
if (subname) {
int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
int skip = 0;
if (subname_len > avail)
skip = subname_len - avail;
snprintf(name + ret,
SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
subname_len - skip, subname + skip);
}
break;
}
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!strcmp(ctl->name, name)) {
if (!ctl->enabled)
ctl->enabled = 1;
return 0;
}
}
ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
if (!ctl)
return -ENOMEM;
ctl->fw_name = wm_adsp_fw_text[dsp->fw];
ctl->alg_region = *alg_region;
ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
if (!ctl->name) {
ret = -ENOMEM;
goto err_ctl;
}
ctl->enabled = 1;
ctl->set = 0;
ctl->ops.xget = wm_coeff_get;
ctl->ops.xput = wm_coeff_put;
ctl->dsp = dsp;
ctl->flags = flags;
ctl->offset = offset;
if (len > 512) {
adsp_warn(dsp, "Truncating control %s from %d\n",
ctl->name, len);
len = 512;
}
ctl->len = len;
ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
if (!ctl->cache) {
ret = -ENOMEM;
goto err_ctl_name;
}
list_add(&ctl->list, &dsp->ctl_list);
ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
if (!ctl_work) {
ret = -ENOMEM;
goto err_ctl_cache;
}
ctl_work->dsp = dsp;
ctl_work->ctl = ctl;
INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
schedule_work(&ctl_work->work);
return 0;
err_ctl_cache:
kfree(ctl->cache);
err_ctl_name:
kfree(ctl->name);
err_ctl:
kfree(ctl);
return ret;
}
struct wm_coeff_parsed_alg {
int id;
const u8 *name;
int name_len;
int ncoeff;
};
struct wm_coeff_parsed_coeff {
int offset;
int mem_type;
const u8 *name;
int name_len;
int ctl_type;
int flags;
int len;
};
static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
{
int length;
switch (bytes) {
case 1:
length = **pos;
break;
case 2:
length = le16_to_cpu(*((__le16 *)*pos));
break;
default:
return 0;
}
if (str)
*str = *pos + bytes;
*pos += ((length + bytes) + 3) & ~0x03;
return length;
}
static int wm_coeff_parse_int(int bytes, const u8 **pos)
{
int val = 0;
switch (bytes) {
case 2:
val = le16_to_cpu(*((__le16 *)*pos));
break;
case 4:
val = le32_to_cpu(*((__le32 *)*pos));
break;
default:
break;
}
*pos += bytes;
return val;
}
static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
struct wm_coeff_parsed_alg *blk)
{
const struct wmfw_adsp_alg_data *raw;
switch (dsp->fw_ver) {
case 0:
case 1:
raw = (const struct wmfw_adsp_alg_data *)*data;
*data = raw->data;
blk->id = le32_to_cpu(raw->id);
blk->name = raw->name;
blk->name_len = strlen(raw->name);
blk->ncoeff = le32_to_cpu(raw->ncoeff);
break;
default:
blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
&blk->name);
wm_coeff_parse_string(sizeof(u16), data, NULL);
blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
break;
}
adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
}
static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
struct wm_coeff_parsed_coeff *blk)
{
const struct wmfw_adsp_coeff_data *raw;
const u8 *tmp;
int length;
switch (dsp->fw_ver) {
case 0:
case 1:
raw = (const struct wmfw_adsp_coeff_data *)*data;
*data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
blk->offset = le16_to_cpu(raw->hdr.offset);
blk->mem_type = le16_to_cpu(raw->hdr.type);
blk->name = raw->name;
blk->name_len = strlen(raw->name);
blk->ctl_type = le16_to_cpu(raw->ctl_type);
blk->flags = le16_to_cpu(raw->flags);
blk->len = le32_to_cpu(raw->len);
break;
default:
tmp = *data;
blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
&blk->name);
wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
*data = *data + sizeof(raw->hdr) + length;
break;
}
adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
}
static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
const struct wmfw_region *region)
{
struct wm_adsp_alg_region alg_region = {};
struct wm_coeff_parsed_alg alg_blk;
struct wm_coeff_parsed_coeff coeff_blk;
const u8 *data = region->data;
int i, ret;
wm_coeff_parse_alg(dsp, &data, &alg_blk);
for (i = 0; i < alg_blk.ncoeff; i++) {
wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
switch (coeff_blk.ctl_type) {
case SNDRV_CTL_ELEM_TYPE_BYTES:
break;
default:
adsp_err(dsp, "Unknown control type: %d\n",
coeff_blk.ctl_type);
return -EINVAL;
}
alg_region.type = coeff_blk.mem_type;
alg_region.alg = alg_blk.id;
ret = wm_adsp_create_control(dsp, &alg_region,
coeff_blk.offset,
coeff_blk.len,
coeff_blk.name,
coeff_blk.name_len,
coeff_blk.flags);
if (ret < 0)
adsp_err(dsp, "Failed to create control: %.*s, %d\n",
coeff_blk.name_len, coeff_blk.name, ret);
}
return 0;
}
static int wm_adsp_load(struct wm_adsp *dsp)
{
LIST_HEAD(buf_list);
const struct firmware *firmware;
struct regmap *regmap = dsp->regmap;
unsigned int pos = 0;
const struct wmfw_header *header;
const struct wmfw_adsp1_sizes *adsp1_sizes;
const struct wmfw_adsp2_sizes *adsp2_sizes;
const struct wmfw_footer *footer;
const struct wmfw_region *region;
const struct wm_adsp_region *mem;
const char *region_name;
char *file, *text;
struct wm_adsp_buf *buf;
unsigned int reg;
int regions = 0;
int ret, offset, type, sizes;
file = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (file == NULL)
return -ENOMEM;
snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';
ret = request_firmware(&firmware, file, dsp->dev);
if (ret != 0) {
adsp_err(dsp, "Failed to request '%s'\n", file);
goto out;
}
ret = -EINVAL;
pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
if (pos >= firmware->size) {
adsp_err(dsp, "%s: file too short, %zu bytes\n",
file, firmware->size);
goto out_fw;
}
header = (void *)&firmware->data[0];
if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
adsp_err(dsp, "%s: invalid magic\n", file);
goto out_fw;
}
switch (header->ver) {
case 0:
adsp_warn(dsp, "%s: Depreciated file format %d\n",
file, header->ver);
break;
case 1:
case 2:
break;
default:
adsp_err(dsp, "%s: unknown file format %d\n",
file, header->ver);
goto out_fw;
}
adsp_info(dsp, "Firmware version: %d\n", header->ver);
dsp->fw_ver = header->ver;
if (header->core != dsp->type) {
adsp_err(dsp, "%s: invalid core %d != %d\n",
file, header->core, dsp->type);
goto out_fw;
}
switch (dsp->type) {
case WMFW_ADSP1:
pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
adsp1_sizes = (void *)&(header[1]);
footer = (void *)&(adsp1_sizes[1]);
sizes = sizeof(*adsp1_sizes);
adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
file, le32_to_cpu(adsp1_sizes->dm),
le32_to_cpu(adsp1_sizes->pm),
le32_to_cpu(adsp1_sizes->zm));
break;
case WMFW_ADSP2:
pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
adsp2_sizes = (void *)&(header[1]);
footer = (void *)&(adsp2_sizes[1]);
sizes = sizeof(*adsp2_sizes);
adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
file, le32_to_cpu(adsp2_sizes->xm),
le32_to_cpu(adsp2_sizes->ym),
le32_to_cpu(adsp2_sizes->pm),
le32_to_cpu(adsp2_sizes->zm));
break;
default:
WARN(1, "Unknown DSP type");
goto out_fw;
}
if (le32_to_cpu(header->len) != sizeof(*header) +
sizes + sizeof(*footer)) {
adsp_err(dsp, "%s: unexpected header length %d\n",
file, le32_to_cpu(header->len));
goto out_fw;
}
adsp_dbg(dsp, "%s: timestamp %llu\n", file,
le64_to_cpu(footer->timestamp));
while (pos < firmware->size &&
pos - firmware->size > sizeof(*region)) {
region = (void *)&(firmware->data[pos]);
region_name = "Unknown";
reg = 0;
text = NULL;
offset = le32_to_cpu(region->offset) & 0xffffff;
type = be32_to_cpu(region->type) & 0xff;
mem = wm_adsp_find_region(dsp, type);
switch (type) {
case WMFW_NAME_TEXT:
region_name = "Firmware name";
text = kzalloc(le32_to_cpu(region->len) + 1,
GFP_KERNEL);
break;
case WMFW_ALGORITHM_DATA:
region_name = "Algorithm";
ret = wm_adsp_parse_coeff(dsp, region);
if (ret != 0)
goto out_fw;
break;
case WMFW_INFO_TEXT:
region_name = "Information";
text = kzalloc(le32_to_cpu(region->len) + 1,
GFP_KERNEL);
break;
case WMFW_ABSOLUTE:
region_name = "Absolute";
reg = offset;
break;
case WMFW_ADSP1_PM:
region_name = "PM";
reg = wm_adsp_region_to_reg(mem, offset);
break;
case WMFW_ADSP1_DM:
region_name = "DM";
reg = wm_adsp_region_to_reg(mem, offset);
break;
case WMFW_ADSP2_XM:
region_name = "XM";
reg = wm_adsp_region_to_reg(mem, offset);
break;
case WMFW_ADSP2_YM:
region_name = "YM";
reg = wm_adsp_region_to_reg(mem, offset);
break;
case WMFW_ADSP1_ZM:
region_name = "ZM";
reg = wm_adsp_region_to_reg(mem, offset);
break;
default:
adsp_warn(dsp,
"%s.%d: Unknown region type %x at %d(%x)\n",
file, regions, type, pos, pos);
break;
}
adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
regions, le32_to_cpu(region->len), offset,
region_name);
if (text) {
memcpy(text, region->data, le32_to_cpu(region->len));
adsp_info(dsp, "%s: %s\n", file, text);
kfree(text);
}
if (reg) {
buf = wm_adsp_buf_alloc(region->data,
le32_to_cpu(region->len),
&buf_list);
if (!buf) {
adsp_err(dsp, "Out of memory\n");
ret = -ENOMEM;
goto out_fw;
}
ret = regmap_raw_write_async(regmap, reg, buf->buf,
le32_to_cpu(region->len));
if (ret != 0) {
adsp_err(dsp,
"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
file, regions,
le32_to_cpu(region->len), offset,
region_name, ret);
goto out_fw;
}
}
pos += le32_to_cpu(region->len) + sizeof(*region);
regions++;
}
ret = regmap_async_complete(regmap);
if (ret != 0) {
adsp_err(dsp, "Failed to complete async write: %d\n", ret);
goto out_fw;
}
if (pos > firmware->size)
adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
file, regions, pos - firmware->size);
wm_adsp_debugfs_save_wmfwname(dsp, file);
out_fw:
regmap_async_complete(regmap);
wm_adsp_buf_free(&buf_list);
release_firmware(firmware);
out:
kfree(file);
return ret;
}
static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region)
{
struct wm_coeff_ctl *ctl;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
alg_region->alg == ctl->alg_region.alg &&
alg_region->type == ctl->alg_region.type) {
ctl->alg_region.base = alg_region->base;
}
}
}
static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
unsigned int pos, unsigned int len)
{
void *alg;
int ret;
__be32 val;
if (n_algs == 0) {
adsp_err(dsp, "No algorithms\n");
return ERR_PTR(-EINVAL);
}
if (n_algs > 1024) {
adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
return ERR_PTR(-EINVAL);
}
/* Read the terminator first to validate the length */
ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm list end: %d\n",
ret);
return ERR_PTR(ret);
}
if (be32_to_cpu(val) != 0xbedead)
adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
pos + len, be32_to_cpu(val));
alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
if (!alg)
return ERR_PTR(-ENOMEM);
ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
kfree(alg);
return ERR_PTR(ret);
}
return alg;
}
static struct wm_adsp_alg_region *
wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
{
struct wm_adsp_alg_region *alg_region;
list_for_each_entry(alg_region, &dsp->alg_regions, list) {
if (id == alg_region->alg && type == alg_region->type)
return alg_region;
}
return NULL;
}
static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
int type, __be32 id,
__be32 base)
{
struct wm_adsp_alg_region *alg_region;
alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
if (!alg_region)
return ERR_PTR(-ENOMEM);
alg_region->type = type;
alg_region->alg = be32_to_cpu(id);
alg_region->base = be32_to_cpu(base);
list_add_tail(&alg_region->list, &dsp->alg_regions);
if (dsp->fw_ver > 0)
wm_adsp_ctl_fixup_base(dsp, alg_region);
return alg_region;
}
static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
{
struct wmfw_adsp1_id_hdr adsp1_id;
struct wmfw_adsp1_alg_hdr *adsp1_alg;
struct wm_adsp_alg_region *alg_region;
const struct wm_adsp_region *mem;
unsigned int pos, len;
size_t n_algs;
int i, ret;
mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
if (WARN_ON(!mem))
return -EINVAL;
ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
sizeof(adsp1_id));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm info: %d\n",
ret);
return ret;
}
n_algs = be32_to_cpu(adsp1_id.n_algs);
dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
dsp->fw_id,
(be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
(be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
be32_to_cpu(adsp1_id.fw.ver) & 0xff,
n_algs);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
adsp1_id.fw.id, adsp1_id.zm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
adsp1_id.fw.id, adsp1_id.dm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
pos = sizeof(adsp1_id) / 2;
len = (sizeof(*adsp1_alg) * n_algs) / 2;
adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
if (IS_ERR(adsp1_alg))
return PTR_ERR(adsp1_alg);
for (i = 0; i < n_algs; i++) {
adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
i, be32_to_cpu(adsp1_alg[i].alg.id),
(be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
(be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
be32_to_cpu(adsp1_alg[i].dm),
be32_to_cpu(adsp1_alg[i].zm));
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
adsp1_alg[i].alg.id,
adsp1_alg[i].dm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp1_alg[i + 1].dm);
len -= be32_to_cpu(adsp1_alg[i].dm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
adsp1_alg[i].alg.id,
adsp1_alg[i].zm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp1_alg[i + 1].zm);
len -= be32_to_cpu(adsp1_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
}
}
}
out:
kfree(adsp1_alg);
return ret;
}
static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
{
struct wmfw_adsp2_id_hdr adsp2_id;
struct wmfw_adsp2_alg_hdr *adsp2_alg;
struct wm_adsp_alg_region *alg_region;
const struct wm_adsp_region *mem;
unsigned int pos, len;
size_t n_algs;
int i, ret;
mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
if (WARN_ON(!mem))
return -EINVAL;
ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
sizeof(adsp2_id));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm info: %d\n",
ret);
return ret;
}
n_algs = be32_to_cpu(adsp2_id.n_algs);
dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
dsp->fw_id,
(dsp->fw_id_version & 0xff0000) >> 16,
(dsp->fw_id_version & 0xff00) >> 8,
dsp->fw_id_version & 0xff,
n_algs);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
adsp2_id.fw.id, adsp2_id.xm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
adsp2_id.fw.id, adsp2_id.ym);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
adsp2_id.fw.id, adsp2_id.zm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
pos = sizeof(adsp2_id) / 2;
len = (sizeof(*adsp2_alg) * n_algs) / 2;
adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
if (IS_ERR(adsp2_alg))
return PTR_ERR(adsp2_alg);
for (i = 0; i < n_algs; i++) {
adsp_info(dsp,
"%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
i, be32_to_cpu(adsp2_alg[i].alg.id),
(be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
(be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
be32_to_cpu(adsp2_alg[i].xm),
be32_to_cpu(adsp2_alg[i].ym),
be32_to_cpu(adsp2_alg[i].zm));
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
adsp2_alg[i].alg.id,
adsp2_alg[i].xm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].xm);
len -= be32_to_cpu(adsp2_alg[i].xm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
adsp2_alg[i].alg.id,
adsp2_alg[i].ym);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].ym);
len -= be32_to_cpu(adsp2_alg[i].ym);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
adsp2_alg[i].alg.id,
adsp2_alg[i].zm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].zm);
len -= be32_to_cpu(adsp2_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
}
out:
kfree(adsp2_alg);
return ret;
}
static int wm_adsp_load_coeff(struct wm_adsp *dsp)
{
LIST_HEAD(buf_list);
struct regmap *regmap = dsp->regmap;
struct wmfw_coeff_hdr *hdr;
struct wmfw_coeff_item *blk;
const struct firmware *firmware;
const struct wm_adsp_region *mem;
struct wm_adsp_alg_region *alg_region;
const char *region_name;
int ret, pos, blocks, type, offset, reg;
char *file;
struct wm_adsp_buf *buf;
file = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (file == NULL)
return -ENOMEM;
snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';
ret = request_firmware(&firmware, file, dsp->dev);
if (ret != 0) {
adsp_warn(dsp, "Failed to request '%s'\n", file);
ret = 0;
goto out;
}
ret = -EINVAL;
if (sizeof(*hdr) >= firmware->size) {
adsp_err(dsp, "%s: file too short, %zu bytes\n",
file, firmware->size);
goto out_fw;
}
hdr = (void *)&firmware->data[0];
if (memcmp(hdr->magic, "WMDR", 4) != 0) {
adsp_err(dsp, "%s: invalid magic\n", file);
goto out_fw;
}
switch (be32_to_cpu(hdr->rev) & 0xff) {
case 1:
break;
default:
adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
file, be32_to_cpu(hdr->rev) & 0xff);
ret = -EINVAL;
goto out_fw;
}
adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
(le32_to_cpu(hdr->ver) >> 16) & 0xff,
(le32_to_cpu(hdr->ver) >> 8) & 0xff,
le32_to_cpu(hdr->ver) & 0xff);
pos = le32_to_cpu(hdr->len);
blocks = 0;
while (pos < firmware->size &&
pos - firmware->size > sizeof(*blk)) {
blk = (void *)(&firmware->data[pos]);
type = le16_to_cpu(blk->type);
offset = le16_to_cpu(blk->offset);
adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
file, blocks, le32_to_cpu(blk->id),
(le32_to_cpu(blk->ver) >> 16) & 0xff,
(le32_to_cpu(blk->ver) >> 8) & 0xff,
le32_to_cpu(blk->ver) & 0xff);
adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
file, blocks, le32_to_cpu(blk->len), offset, type);
reg = 0;
region_name = "Unknown";
switch (type) {
case (WMFW_NAME_TEXT << 8):
case (WMFW_INFO_TEXT << 8):
break;
case (WMFW_ABSOLUTE << 8):
/*
* Old files may use this for global
* coefficients.
*/
if (le32_to_cpu(blk->id) == dsp->fw_id &&
offset == 0) {
region_name = "global coefficients";
mem = wm_adsp_find_region(dsp, type);
if (!mem) {
adsp_err(dsp, "No ZM\n");
break;
}
reg = wm_adsp_region_to_reg(mem, 0);
} else {
region_name = "register";
reg = offset;
}
break;
case WMFW_ADSP1_DM:
case WMFW_ADSP1_ZM:
case WMFW_ADSP2_XM:
case WMFW_ADSP2_YM:
adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
file, blocks, le32_to_cpu(blk->len),
type, le32_to_cpu(blk->id));
mem = wm_adsp_find_region(dsp, type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n", type);
break;
}
alg_region = wm_adsp_find_alg_region(dsp, type,
le32_to_cpu(blk->id));
if (alg_region) {
reg = alg_region->base;
reg = wm_adsp_region_to_reg(mem, reg);
reg += offset;
} else {
adsp_err(dsp, "No %x for algorithm %x\n",
type, le32_to_cpu(blk->id));
}
break;
default:
adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
file, blocks, type, pos);
break;
}
if (reg) {
buf = wm_adsp_buf_alloc(blk->data,
le32_to_cpu(blk->len),
&buf_list);
if (!buf) {
adsp_err(dsp, "Out of memory\n");
ret = -ENOMEM;
goto out_fw;
}
adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
file, blocks, le32_to_cpu(blk->len),
reg);
ret = regmap_raw_write_async(regmap, reg, buf->buf,
le32_to_cpu(blk->len));
if (ret != 0) {
adsp_err(dsp,
"%s.%d: Failed to write to %x in %s: %d\n",
file, blocks, reg, region_name, ret);
}
}
pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
blocks++;
}
ret = regmap_async_complete(regmap);
if (ret != 0)
adsp_err(dsp, "Failed to complete async write: %d\n", ret);
if (pos > firmware->size)
adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
file, blocks, pos - firmware->size);
wm_adsp_debugfs_save_binname(dsp, file);
out_fw:
regmap_async_complete(regmap);
release_firmware(firmware);
wm_adsp_buf_free(&buf_list);
out:
kfree(file);
return ret;
}
int wm_adsp1_init(struct wm_adsp *dsp)
{
INIT_LIST_HEAD(&dsp->alg_regions);
mutex_init(&dsp->pwr_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp1_init);
int wm_adsp1_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
struct wm_adsp *dsp = &dsps[w->shift];
struct wm_adsp_alg_region *alg_region;
struct wm_coeff_ctl *ctl;
int ret;
unsigned int val;
dsp->card = codec->component.card;
mutex_lock(&dsp->pwr_lock);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, ADSP1_SYS_ENA);
/*
* For simplicity set the DSP clock rate to be the
* SYSCLK rate rather than making it configurable.
*/
if (dsp->sysclk_reg) {
ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
if (ret != 0) {
adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
ret);
goto err_mutex;
}
val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
ret = regmap_update_bits(dsp->regmap,
dsp->base + ADSP1_CONTROL_31,
ADSP1_CLK_SEL_MASK, val);
if (ret != 0) {
adsp_err(dsp, "Failed to set clock rate: %d\n",
ret);
goto err_mutex;
}
}
ret = wm_adsp_load(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp1_setup_algs(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp_load_coeff(dsp);
if (ret != 0)
goto err_ena;
/* Initialize caches for enabled and unset controls */
ret = wm_coeff_init_control_caches(dsp);
if (ret != 0)
goto err_ena;
/* Sync set controls */
ret = wm_coeff_sync_controls(dsp);
if (ret != 0)
goto err_ena;
/* Start the core running */
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_CORE_ENA | ADSP1_START,
ADSP1_CORE_ENA | ADSP1_START);
break;
case SND_SOC_DAPM_PRE_PMD:
/* Halt the core */
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_CORE_ENA | ADSP1_START, 0);
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, 0);
list_for_each_entry(ctl, &dsp->ctl_list, list)
ctl->enabled = 0;
while (!list_empty(&dsp->alg_regions)) {
alg_region = list_first_entry(&dsp->alg_regions,
struct wm_adsp_alg_region,
list);
list_del(&alg_region->list);
kfree(alg_region);
}
break;
default:
break;
}
mutex_unlock(&dsp->pwr_lock);
return 0;
err_ena:
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, 0);
err_mutex:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp1_event);
static int wm_adsp2_ena(struct wm_adsp *dsp)
{
unsigned int val;
int ret, count;
ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA, ADSP2_SYS_ENA);
if (ret != 0)
return ret;
/* Wait for the RAM to start, should be near instantaneous */
for (count = 0; count < 10; ++count) {
ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
if (ret != 0)
return ret;
if (val & ADSP2_RAM_RDY)
break;
msleep(1);
}
if (!(val & ADSP2_RAM_RDY)) {
adsp_err(dsp, "Failed to start DSP RAM\n");
return -EBUSY;
}
adsp_dbg(dsp, "RAM ready after %d polls\n", count);
return 0;
}
static void wm_adsp2_boot_work(struct work_struct *work)
{
struct wm_adsp *dsp = container_of(work,
struct wm_adsp,
boot_work);
int ret;
mutex_lock(&dsp->pwr_lock);
ret = wm_adsp2_ena(dsp);
if (ret != 0)
goto err_mutex;
ret = wm_adsp_load(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp2_setup_algs(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp_load_coeff(dsp);
if (ret != 0)
goto err_ena;
/* Initialize caches for enabled and unset controls */
ret = wm_coeff_init_control_caches(dsp);
if (ret != 0)
goto err_ena;
/* Sync set controls */
ret = wm_coeff_sync_controls(dsp);
if (ret != 0)
goto err_ena;
dsp->running = true;
mutex_unlock(&dsp->pwr_lock);
return;
err_ena:
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
err_mutex:
mutex_unlock(&dsp->pwr_lock);
}
static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
{
int ret;
ret = regmap_update_bits_async(dsp->regmap,
dsp->base + ADSP2_CLOCKING,
ADSP2_CLK_SEL_MASK,
freq << ADSP2_CLK_SEL_SHIFT);
if (ret != 0)
adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
}
int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event,
unsigned int freq)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
struct wm_adsp *dsp = &dsps[w->shift];
dsp->card = codec->component.card;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
wm_adsp2_set_dspclk(dsp, freq);
queue_work(system_unbound_wq, &dsp->boot_work);
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
int wm_adsp2_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
struct wm_adsp *dsp = &dsps[w->shift];
struct wm_adsp_alg_region *alg_region;
struct wm_coeff_ctl *ctl;
int ret;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
flush_work(&dsp->boot_work);
if (!dsp->running)
return -EIO;
ret = regmap_update_bits(dsp->regmap,
dsp->base + ADSP2_CONTROL,
ADSP2_CORE_ENA | ADSP2_START,
ADSP2_CORE_ENA | ADSP2_START);
if (ret != 0)
goto err;
mutex_lock(&dsp->pwr_lock);
if (wm_adsp_fw[dsp->fw].num_caps != 0)
ret = wm_adsp_buffer_init(dsp);
mutex_unlock(&dsp->pwr_lock);
break;
case SND_SOC_DAPM_PRE_PMD:
/* Log firmware state, it can be useful for analysis */
wm_adsp2_show_fw_status(dsp);
mutex_lock(&dsp->pwr_lock);
wm_adsp_debugfs_clear(dsp);
dsp->fw_id = 0;
dsp->fw_id_version = 0;
dsp->running = false;
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA | ADSP2_CORE_ENA |
ADSP2_START, 0);
/* Make sure DMAs are quiesced */
regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
list_for_each_entry(ctl, &dsp->ctl_list, list)
ctl->enabled = 0;
while (!list_empty(&dsp->alg_regions)) {
alg_region = list_first_entry(&dsp->alg_regions,
struct wm_adsp_alg_region,
list);
list_del(&alg_region->list);
kfree(alg_region);
}
if (wm_adsp_fw[dsp->fw].num_caps != 0)
wm_adsp_buffer_free(dsp);
mutex_unlock(&dsp->pwr_lock);
adsp_dbg(dsp, "Shutdown complete\n");
break;
default:
break;
}
return 0;
err:
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp2_event);
int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
{
wm_adsp2_init_debugfs(dsp, codec);
return snd_soc_add_codec_controls(codec,
&wm_adsp_fw_controls[dsp->num - 1],
1);
}
EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
{
wm_adsp2_cleanup_debugfs(dsp);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
int wm_adsp2_init(struct wm_adsp *dsp)
{
int ret;
/*
* Disable the DSP memory by default when in reset for a small
* power saving.
*/
ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_MEM_ENA, 0);
if (ret != 0) {
adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
return ret;
}
INIT_LIST_HEAD(&dsp->alg_regions);
INIT_LIST_HEAD(&dsp->ctl_list);
INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
mutex_init(&dsp->pwr_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_init);
int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr;
int ret = 0;
mutex_lock(&dsp->pwr_lock);
if (wm_adsp_fw[dsp->fw].num_caps == 0) {
adsp_err(dsp, "Firmware does not support compressed API\n");
ret = -ENXIO;
goto out;
}
if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
adsp_err(dsp, "Firmware does not support stream direction\n");
ret = -EINVAL;
goto out;
}
if (dsp->compr) {
/* It is expect this limitation will be removed in future */
adsp_err(dsp, "Only a single stream supported per DSP\n");
ret = -EBUSY;
goto out;
}
compr = kzalloc(sizeof(*compr), GFP_KERNEL);
if (!compr) {
ret = -ENOMEM;
goto out;
}
compr->dsp = dsp;
compr->stream = stream;
dsp->compr = compr;
stream->runtime->private_data = compr;
out:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
int wm_adsp_compr_free(struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
mutex_lock(&dsp->pwr_lock);
dsp->compr = NULL;
kfree(compr->raw_buf);
kfree(compr);
mutex_unlock(&dsp->pwr_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
struct snd_compr_params *params)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
const struct wm_adsp_fw_caps *caps;
const struct snd_codec_desc *desc;
int i, j;
if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
params->buffer.fragment_size,
params->buffer.fragments);
return -EINVAL;
}
for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
caps = &wm_adsp_fw[dsp->fw].caps[i];
desc = &caps->desc;
if (caps->id != params->codec.id)
continue;
if (stream->direction == SND_COMPRESS_PLAYBACK) {
if (desc->max_ch < params->codec.ch_out)
continue;
} else {
if (desc->max_ch < params->codec.ch_in)
continue;
}
if (!(desc->formats & (1 << params->codec.format)))
continue;
for (j = 0; j < desc->num_sample_rates; ++j)
if (desc->sample_rates[j] == params->codec.sample_rate)
return 0;
}
adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
params->codec.id, params->codec.ch_in, params->codec.ch_out,
params->codec.sample_rate, params->codec.format);
return -EINVAL;
}
static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
{
return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
}
int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
struct snd_compr_params *params)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
unsigned int size;
int ret;
ret = wm_adsp_compr_check_params(stream, params);
if (ret)
return ret;
compr->size = params->buffer;
adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
compr->size.fragment_size, compr->size.fragments);
size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
if (!compr->raw_buf)
return -ENOMEM;
compr->sample_rate = params->codec.sample_rate;
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
struct snd_compr_caps *caps)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
int fw = compr->dsp->fw;
int i;
if (wm_adsp_fw[fw].caps) {
for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
caps->num_codecs = i;
caps->direction = wm_adsp_fw[fw].compr_direction;
caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
}
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr,
unsigned int num_words, u32 *data)
{
struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
unsigned int i, reg;
int ret;
if (!mem)
return -EINVAL;
reg = wm_adsp_region_to_reg(mem, mem_addr);
ret = regmap_raw_read(dsp->regmap, reg, data,
sizeof(*data) * num_words);
if (ret < 0)
return ret;
for (i = 0; i < num_words; ++i)
data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
return 0;
}
static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr, u32 *data)
{
return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
}
static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr, u32 data)
{
struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
unsigned int reg;
if (!mem)
return -EINVAL;
reg = wm_adsp_region_to_reg(mem, mem_addr);
data = cpu_to_be32(data & 0x00ffffffu);
return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
}
static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
unsigned int field_offset, u32 *data)
{
return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
buf->host_buf_ptr + field_offset, data);
}
static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
unsigned int field_offset, u32 data)
{
return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
buf->host_buf_ptr + field_offset, data);
}
static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
{
struct wm_adsp_alg_region *alg_region;
struct wm_adsp *dsp = buf->dsp;
u32 xmalg, addr, magic;
int i, ret;
alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
if (ret < 0)
return ret;
if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
return -EINVAL;
addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
for (i = 0; i < 5; ++i) {
ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
&buf->host_buf_ptr);
if (ret < 0)
return ret;
if (buf->host_buf_ptr)
break;
usleep_range(1000, 2000);
}
if (!buf->host_buf_ptr)
return -EIO;
adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
return 0;
}
static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
{
const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
struct wm_adsp_buffer_region *region;
u32 offset = 0;
int i, ret;
for (i = 0; i < caps->num_regions; ++i) {
region = &buf->regions[i];
region->offset = offset;
region->mem_type = caps->region_defs[i].mem_type;
ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
&region->base_addr);
if (ret < 0)
return ret;
ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
&offset);
if (ret < 0)
return ret;
region->cumulative_size = offset;
adsp_dbg(buf->dsp,
"region=%d type=%d base=%04x off=%04x size=%04x\n",
i, region->mem_type, region->base_addr,
region->offset, region->cumulative_size);
}
return 0;
}
static int wm_adsp_buffer_init(struct wm_adsp *dsp)
{
struct wm_adsp_compr_buf *buf;
int ret;
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf->dsp = dsp;
buf->read_index = -1;
buf->irq_count = 0xFFFFFFFF;
ret = wm_adsp_buffer_locate(buf);
if (ret < 0) {
adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
goto err_buffer;
}
buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
sizeof(*buf->regions), GFP_KERNEL);
if (!buf->regions) {
ret = -ENOMEM;
goto err_buffer;
}
ret = wm_adsp_buffer_populate(buf);
if (ret < 0) {
adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
goto err_regions;
}
dsp->buffer = buf;
return 0;
err_regions:
kfree(buf->regions);
err_buffer:
kfree(buf);
return ret;
}
static int wm_adsp_buffer_free(struct wm_adsp *dsp)
{
if (dsp->buffer) {
kfree(dsp->buffer->regions);
kfree(dsp->buffer);
dsp->buffer = NULL;
}
return 0;
}
static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
{
return compr->buf != NULL;
}
static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
{
/*
* Note this will be more complex once each DSP can support multiple
* streams
*/
if (!compr->dsp->buffer)
return -EINVAL;
compr->buf = compr->dsp->buffer;
return 0;
}
int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
int ret = 0;
adsp_dbg(dsp, "Trigger: %d\n", cmd);
mutex_lock(&dsp->pwr_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (wm_adsp_compr_attached(compr))
break;
ret = wm_adsp_compr_attach(compr);
if (ret < 0) {
adsp_err(dsp, "Failed to link buffer and stream: %d\n",
ret);
break;
}
/* Trigger the IRQ at one fragment of data */
ret = wm_adsp_buffer_write(compr->buf,
HOST_BUFFER_FIELD(high_water_mark),
wm_adsp_compr_frag_words(compr));
if (ret < 0) {
adsp_err(dsp, "Failed to set high water mark: %d\n",
ret);
break;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
break;
default:
ret = -EINVAL;
break;
}
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
{
int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
return buf->regions[last_region].cumulative_size;
}
static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
{
u32 next_read_index, next_write_index;
int write_index, read_index, avail;
int ret;
/* Only sync read index if we haven't already read a valid index */
if (buf->read_index < 0) {
ret = wm_adsp_buffer_read(buf,
HOST_BUFFER_FIELD(next_read_index),
&next_read_index);
if (ret < 0)
return ret;
read_index = sign_extend32(next_read_index, 23);
if (read_index < 0) {
adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
return 0;
}
buf->read_index = read_index;
}
ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
&next_write_index);
if (ret < 0)
return ret;
write_index = sign_extend32(next_write_index, 23);
avail = write_index - buf->read_index;
if (avail < 0)
avail += wm_adsp_buffer_size(buf);
adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
buf->read_index, write_index, avail * WM_ADSP_DATA_WORD_SIZE);
buf->avail = avail;
return 0;
}
int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
{
struct wm_adsp_compr_buf *buf;
struct wm_adsp_compr *compr;
int ret = 0;
mutex_lock(&dsp->pwr_lock);
buf = dsp->buffer;
compr = dsp->compr;
if (!buf) {
ret = -ENODEV;
goto out;
}
adsp_dbg(dsp, "Handling buffer IRQ\n");
ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
if (ret < 0) {
adsp_err(dsp, "Failed to check buffer error: %d\n", ret);
goto out;
}
if (buf->error != 0) {
adsp_err(dsp, "Buffer error occurred: %d\n", buf->error);
ret = -EIO;
goto out;
}
ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
&buf->irq_count);
if (ret < 0) {
adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
goto out;
}
ret = wm_adsp_buffer_update_avail(buf);
if (ret < 0) {
adsp_err(dsp, "Error reading avail: %d\n", ret);
goto out;
}
if (compr && compr->stream)
snd_compr_fragment_elapsed(compr->stream);
out:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
{
if (buf->irq_count & 0x01)
return 0;
adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
buf->irq_count);
buf->irq_count |= 0x01;
return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
buf->irq_count);
}
int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
struct snd_compr_tstamp *tstamp)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
struct wm_adsp_compr_buf *buf;
int ret = 0;
adsp_dbg(dsp, "Pointer request\n");
mutex_lock(&dsp->pwr_lock);
buf = compr->buf;
if (!compr->buf) {
ret = -ENXIO;
goto out;
}
if (compr->buf->error) {
ret = -EIO;
goto out;
}
if (buf->avail < wm_adsp_compr_frag_words(compr)) {
ret = wm_adsp_buffer_update_avail(buf);
if (ret < 0) {
adsp_err(dsp, "Error reading avail: %d\n", ret);
goto out;
}
/*
* If we really have less than 1 fragment available tell the
* DSP to inform us once a whole fragment is available.
*/
if (buf->avail < wm_adsp_compr_frag_words(compr)) {
ret = wm_adsp_buffer_reenable_irq(buf);
if (ret < 0) {
adsp_err(dsp,
"Failed to re-enable buffer IRQ: %d\n",
ret);
goto out;
}
}
}
tstamp->copied_total = compr->copied_total;
tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
tstamp->sampling_rate = compr->sample_rate;
out:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
{
struct wm_adsp_compr_buf *buf = compr->buf;
u8 *pack_in = (u8 *)compr->raw_buf;
u8 *pack_out = (u8 *)compr->raw_buf;
unsigned int adsp_addr;
int mem_type, nwords, max_read;
int i, j, ret;
/* Calculate read parameters */
for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
if (buf->read_index < buf->regions[i].cumulative_size)
break;
if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
return -EINVAL;
mem_type = buf->regions[i].mem_type;
adsp_addr = buf->regions[i].base_addr +
(buf->read_index - buf->regions[i].offset);
max_read = wm_adsp_compr_frag_words(compr);
nwords = buf->regions[i].cumulative_size - buf->read_index;
if (nwords > target)
nwords = target;
if (nwords > buf->avail)
nwords = buf->avail;
if (nwords > max_read)
nwords = max_read;
if (!nwords)
return 0;
/* Read data from DSP */
ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
nwords, compr->raw_buf);
if (ret < 0)
return ret;
/* Remove the padding bytes from the data read from the DSP */
for (i = 0; i < nwords; i++) {
for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
*pack_out++ = *pack_in++;
pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
}
/* update read index to account for words read */
buf->read_index += nwords;
if (buf->read_index == wm_adsp_buffer_size(buf))
buf->read_index = 0;
ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
buf->read_index);
if (ret < 0)
return ret;
/* update avail to account for words read */
buf->avail -= nwords;
return nwords;
}
static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
char __user *buf, size_t count)
{
struct wm_adsp *dsp = compr->dsp;
int ntotal = 0;
int nwords, nbytes;
adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
if (!compr->buf)
return -ENXIO;
if (compr->buf->error)
return -EIO;
count /= WM_ADSP_DATA_WORD_SIZE;
do {
nwords = wm_adsp_buffer_capture_block(compr, count);
if (nwords < 0) {
adsp_err(dsp, "Failed to capture block: %d\n", nwords);
return nwords;
}
nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
adsp_dbg(dsp, "Read %d bytes\n", nbytes);
if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
ntotal, nbytes);
return -EFAULT;
}
count -= nwords;
ntotal += nbytes;
} while (nwords > 0 && count > 0);
compr->copied_total += ntotal;
return ntotal;
}
int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
size_t count)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
int ret;
mutex_lock(&dsp->pwr_lock);
if (stream->direction == SND_COMPRESS_CAPTURE)
ret = wm_adsp_compr_read(compr, buf, count);
else
ret = -ENOTSUPP;
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
MODULE_LICENSE("GPL v2");
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