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linuxdebug/sound/soc/codecs/wm_adsp.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* wm_adsp.c -- Wolfson ADSP support
*
* Copyright 2012 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*/
#include <linux/ctype.h>
#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/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->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
#define adsp_err(_dsp, fmt, ...) \
dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
#define adsp_warn(_dsp, fmt, ...) \
dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
#define adsp_info(_dsp, fmt, ...) \
dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
#define adsp_dbg(_dsp, fmt, ...) \
dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
#define compr_err(_obj, fmt, ...) \
adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
##__VA_ARGS__)
#define compr_dbg(_obj, fmt, ...) \
adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
##__VA_ARGS__)
#define ADSP_MAX_STD_CTRL_SIZE 512
static const struct cs_dsp_client_ops wm_adsp1_client_ops;
static const struct cs_dsp_client_ops wm_adsp2_client_ops;
#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_SPK_CALI 10
#define WM_ADSP_FW_SPK_DIAG 11
#define WM_ADSP_FW_MISC 12
#define WM_ADSP_NUM_FW 13
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_SPK_CALI] = "Calibration",
[WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
[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;
} __packed;
struct wm_halo_system_config_xm_hdr {
__be32 halo_heartbeat;
__be32 build_job_name[3];
__be32 build_job_number;
} __packed;
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;
} __packed;
struct wm_adsp_host_buf_coeff_v1 {
__be32 host_buf_ptr; /* Host buffer pointer */
__be32 versions; /* Version numbers */
__be32 name[4]; /* The buffer name */
} __packed;
struct wm_adsp_buffer {
__be32 buf1_base; /* Base addr of first buffer area */
__be32 buf1_size; /* Size of buf1 area in DSP words */
__be32 buf2_base; /* Base addr of 2nd buffer area */
__be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */
__be32 buf3_base; /* Base addr of buf3 area */
__be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP 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) */
} __packed;
struct wm_adsp_compr;
struct wm_adsp_compr_buf {
struct list_head list;
struct wm_adsp *dsp;
struct wm_adsp_compr *compr;
struct wm_adsp_buffer_region *regions;
u32 host_buf_ptr;
u32 error;
u32 irq_count;
int read_index;
int avail;
int host_buf_mem_type;
char *name;
};
struct wm_adsp_compr {
struct list_head list;
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;
const char *name;
};
#define WM_ADSP_MIN_FRAGMENTS 1
#define WM_ADSP_MAX_FRAGMENTS 256
#define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE)
#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_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))
#define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1
#define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00
#define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8
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(buf1_base),
.size_offset = HOST_BUFFER_FIELD(buf1_size),
},
{
.mem_type = WMFW_ADSP2_XM,
.base_offset = HOST_BUFFER_FIELD(buf2_base),
.size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
},
{
.mem_type = WMFW_ADSP2_YM,
.base_offset = HOST_BUFFER_FIELD(buf3_base),
.size_offset = HOST_BUFFER_FIELD(buf_total_size),
},
};
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 = 8,
.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;
bool voice_trigger;
} 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,
.voice_trigger = true,
},
[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",
.compr_direction = SND_COMPRESS_CAPTURE,
.num_caps = ARRAY_SIZE(trace_caps),
.caps = trace_caps,
},
[WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
[WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
[WM_ADSP_FW_MISC] = { .file = "misc" },
};
struct wm_coeff_ctl {
const char *name;
struct cs_dsp_coeff_ctl *cs_ctl;
struct soc_bytes_ext bytes_ext;
struct work_struct work;
};
int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
int ret = 1;
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].cs_dsp.pwr_lock);
if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list))
ret = -EBUSY;
else
dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
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),
SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
};
EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
{
return container_of(ext, struct wm_coeff_ctl, bytes_ext);
}
static int wm_coeff_info(struct snd_kcontrol *kctl,
struct snd_ctl_elem_info *uinfo)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
switch (cs_ctl->type) {
case WMFW_CTL_TYPE_ACKED:
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE;
uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE;
uinfo->value.integer.step = 1;
uinfo->count = 1;
break;
default:
uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
uinfo->count = cs_ctl->len;
break;
}
return 0;
}
static int wm_coeff_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
char *p = ucontrol->value.bytes.data;
int ret = 0;
mutex_lock(&cs_ctl->dsp->pwr_lock);
ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
mutex_unlock(&cs_ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
const unsigned int __user *bytes, unsigned int size)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
int ret = 0;
mutex_lock(&cs_ctl->dsp->pwr_lock);
if (copy_from_user(cs_ctl->cache, bytes, size))
ret = -EFAULT;
else
ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, cs_ctl->cache, size);
mutex_unlock(&cs_ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
unsigned int val = ucontrol->value.integer.value[0];
int ret;
if (val == 0)
return 0; /* 0 means no event */
mutex_lock(&cs_ctl->dsp->pwr_lock);
if (cs_ctl->enabled)
ret = cs_dsp_coeff_write_acked_control(cs_ctl, val);
else
ret = -EPERM;
mutex_unlock(&cs_ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
char *p = ucontrol->value.bytes.data;
int ret;
mutex_lock(&cs_ctl->dsp->pwr_lock);
ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
mutex_unlock(&cs_ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
unsigned int __user *bytes, unsigned int size)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
int ret = 0;
mutex_lock(&cs_ctl->dsp->pwr_lock);
ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size);
if (!ret && copy_to_user(bytes, cs_ctl->cache, size))
ret = -EFAULT;
mutex_unlock(&cs_ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
/*
* Although it's not useful to read an acked control, we must satisfy
* user-side assumptions that all controls are readable and that a
* write of the same value should be filtered out (it's valid to send
* the same event number again to the firmware). We therefore return 0,
* meaning "no event" so valid event numbers will always be a change
*/
ucontrol->value.integer.value[0] = 0;
return 0;
}
static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
{
unsigned int out, rd, wr, vol;
if (len > ADSP_MAX_STD_CTRL_SIZE) {
rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
} else {
rd = SNDRV_CTL_ELEM_ACCESS_READ;
wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
out = 0;
}
if (in) {
out |= rd;
if (in & WMFW_CTL_FLAG_WRITEABLE)
out |= wr;
if (in & WMFW_CTL_FLAG_VOLATILE)
out |= vol;
} else {
out |= rd | wr | vol;
}
return out;
}
static void wm_adsp_ctl_work(struct work_struct *work)
{
struct wm_coeff_ctl *ctl = container_of(work,
struct wm_coeff_ctl,
work);
struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
struct wm_adsp *dsp = container_of(cs_ctl->dsp,
struct wm_adsp,
cs_dsp);
struct snd_kcontrol_new *kcontrol;
kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
if (!kcontrol)
return;
kcontrol->name = ctl->name;
kcontrol->info = wm_coeff_info;
kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len);
switch (cs_ctl->type) {
case WMFW_CTL_TYPE_ACKED:
kcontrol->get = wm_coeff_get_acked;
kcontrol->put = wm_coeff_put_acked;
break;
default:
if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
ctl->bytes_ext.max = cs_ctl->len;
ctl->bytes_ext.get = wm_coeff_tlv_get;
ctl->bytes_ext.put = wm_coeff_tlv_put;
} else {
kcontrol->get = wm_coeff_get;
kcontrol->put = wm_coeff_put;
}
break;
}
snd_soc_add_component_controls(dsp->component, kcontrol, 1);
kfree(kcontrol);
}
static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
{
struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
struct cs_dsp *cs_dsp = &dsp->cs_dsp;
struct wm_coeff_ctl *ctl;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
const char *region_name;
int ret;
if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
return 0;
region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type);
if (!region_name) {
adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
return -EINVAL;
}
switch (cs_dsp->fw_ver) {
case 0:
case 1:
ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"%s %s %x", cs_dsp->name, region_name,
cs_ctl->alg_region.alg);
break;
case 2:
ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"%s%c %.12s %x", cs_dsp->name, *region_name,
wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
break;
default:
ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"%s %.12s %x", cs_dsp->name,
wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
break;
}
if (cs_ctl->subname) {
int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
int skip = 0;
if (dsp->component->name_prefix)
avail -= strlen(dsp->component->name_prefix) + 1;
/* Truncate the subname from the start if it is too long */
if (cs_ctl->subname_len > avail)
skip = cs_ctl->subname_len - avail;
snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
" %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
}
ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
if (!ctl)
return -ENOMEM;
ctl->cs_ctl = cs_ctl;
ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
if (!ctl->name) {
ret = -ENOMEM;
goto err_ctl;
}
cs_ctl->priv = ctl;
INIT_WORK(&ctl->work, wm_adsp_ctl_work);
schedule_work(&ctl->work);
return 0;
err_ctl:
kfree(ctl);
return ret;
}
static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
{
struct wm_coeff_ctl *ctl = cs_ctl->priv;
cancel_work_sync(&ctl->work);
kfree(ctl->name);
kfree(ctl);
}
int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
unsigned int alg, void *buf, size_t len)
{
struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
struct wm_coeff_ctl *ctl;
struct snd_kcontrol *kcontrol;
char ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
int ret;
ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
if (ret)
return ret;
if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
return 0;
ctl = cs_ctl->priv;
if (dsp->component->name_prefix)
snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s",
dsp->component->name_prefix, ctl->name);
else
snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s",
ctl->name);
kcontrol = snd_soc_card_get_kcontrol(dsp->component->card, ctl_name);
if (!kcontrol) {
adsp_err(dsp, "Can't find kcontrol %s\n", ctl_name);
return -EINVAL;
}
snd_ctl_notify(dsp->component->card->snd_card,
SNDRV_CTL_EVENT_MASK_VALUE, &kcontrol->id);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
unsigned int alg, void *buf, size_t len)
{
return cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
0, buf, len);
}
EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
const struct firmware *wmfw_firmware,
char *wmfw_filename,
const struct firmware *coeff_firmware,
char *coeff_filename)
{
if (wmfw_firmware)
release_firmware(wmfw_firmware);
kfree(wmfw_filename);
if (coeff_firmware)
release_firmware(coeff_firmware);
kfree(coeff_filename);
}
static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
const struct firmware **firmware, char **filename,
const char *dir, const char *system_name,
const char *asoc_component_prefix,
const char *filetype)
{
struct cs_dsp *cs_dsp = &dsp->cs_dsp;
char *s, c;
int ret = 0;
if (system_name && asoc_component_prefix)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,
dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name,
asoc_component_prefix, filetype);
else if (system_name)
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part,
dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name,
filetype);
else
*filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name,
wm_adsp_fw[dsp->fw].file, filetype);
if (*filename == NULL)
return -ENOMEM;
/*
* Make sure that filename is lower-case and any non alpha-numeric
* characters except full stop and forward slash are replaced with
* hyphens.
*/
s = *filename;
while (*s) {
c = *s;
if (isalnum(c))
*s = tolower(c);
else if ((c != '.') && (c != '/'))
*s = '-';
s++;
}
ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev);
if (ret != 0) {
adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
kfree(*filename);
*filename = NULL;
}
return ret;
}
static const char *cirrus_dir = "cirrus/";
static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
const struct firmware **wmfw_firmware,
char **wmfw_filename,
const struct firmware **coeff_firmware,
char **coeff_filename)
{
const char *system_name = dsp->system_name;
const char *asoc_component_prefix = dsp->component->name_prefix;
int ret = 0;
if (system_name && asoc_component_prefix) {
if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
cirrus_dir, system_name,
asoc_component_prefix, "wmfw")) {
adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
cirrus_dir, system_name,
asoc_component_prefix, "bin");
return 0;
}
}
if (system_name) {
if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
cirrus_dir, system_name,
NULL, "wmfw")) {
adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
if (asoc_component_prefix)
wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
cirrus_dir, system_name,
asoc_component_prefix, "bin");
if (!*coeff_firmware)
wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
cirrus_dir, system_name,
NULL, "bin");
return 0;
}
}
if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
"", NULL, NULL, "wmfw")) {
adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
"", NULL, NULL, "bin");
return 0;
}
ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
cirrus_dir, NULL, NULL, "wmfw");
if (!ret) {
adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
cirrus_dir, NULL, NULL, "bin");
return 0;
}
adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file,
system_name, asoc_component_prefix);
return -ENOENT;
}
static int wm_adsp_common_init(struct wm_adsp *dsp)
{
char *p;
INIT_LIST_HEAD(&dsp->compr_list);
INIT_LIST_HEAD(&dsp->buffer_list);
if (!dsp->fwf_name) {
p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL);
if (!p)
return -ENOMEM;
dsp->fwf_name = p;
for (; *p != 0; ++p)
*p = tolower(*p);
}
return 0;
}
int wm_adsp1_init(struct wm_adsp *dsp)
{
int ret;
dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
if (ret)
return ret;
return wm_adsp_common_init(dsp);
}
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_component *component = snd_soc_dapm_to_component(w->dapm);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct wm_adsp *dsp = &dsps[w->shift];
int ret = 0;
char *wmfw_filename = NULL;
const struct firmware *wmfw_firmware = NULL;
char *coeff_filename = NULL;
const struct firmware *coeff_firmware = NULL;
dsp->component = component;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
ret = wm_adsp_request_firmware_files(dsp,
&wmfw_firmware, &wmfw_filename,
&coeff_firmware, &coeff_filename);
if (ret)
break;
ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
wmfw_firmware, wmfw_filename,
coeff_firmware, coeff_filename,
wm_adsp_fw_text[dsp->fw]);
wm_adsp_release_firmware_files(dsp,
wmfw_firmware, wmfw_filename,
coeff_firmware, coeff_filename);
break;
case SND_SOC_DAPM_PRE_PMD:
cs_dsp_adsp1_power_down(&dsp->cs_dsp);
break;
default:
break;
}
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp1_event);
int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct wm_adsp *dsp = &dsps[w->shift];
return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
}
EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct wm_adsp *dsp = &dsps[mc->shift - 1];
ucontrol->value.integer.value[0] = dsp->preloaded;
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct wm_adsp *dsp = &dsps[mc->shift - 1];
char preload[32];
if (dsp->preloaded == ucontrol->value.integer.value[0])
return 0;
snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
snd_soc_component_force_enable_pin(component, preload);
else
snd_soc_component_disable_pin(component, preload);
snd_soc_dapm_sync(dapm);
flush_work(&dsp->boot_work);
dsp->preloaded = ucontrol->value.integer.value[0];
if (dsp->toggle_preload) {
snd_soc_component_disable_pin(component, preload);
snd_soc_dapm_sync(dapm);
}
return 1;
}
EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
static void wm_adsp_boot_work(struct work_struct *work)
{
struct wm_adsp *dsp = container_of(work,
struct wm_adsp,
boot_work);
int ret = 0;
char *wmfw_filename = NULL;
const struct firmware *wmfw_firmware = NULL;
char *coeff_filename = NULL;
const struct firmware *coeff_firmware = NULL;
ret = wm_adsp_request_firmware_files(dsp,
&wmfw_firmware, &wmfw_filename,
&coeff_firmware, &coeff_filename);
if (ret)
return;
cs_dsp_power_up(&dsp->cs_dsp,
wmfw_firmware, wmfw_filename,
coeff_firmware, coeff_filename,
wm_adsp_fw_text[dsp->fw]);
wm_adsp_release_firmware_files(dsp,
wmfw_firmware, wmfw_filename,
coeff_firmware, coeff_filename);
}
int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct wm_adsp *dsp = &dsps[w->shift];
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
queue_work(system_unbound_wq, &dsp->boot_work);
break;
case SND_SOC_DAPM_PRE_PMD:
cs_dsp_power_down(&dsp->cs_dsp);
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_early_event);
static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
{
struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
if (wm_adsp_fw[dsp->fw].num_caps != 0)
return wm_adsp_buffer_init(dsp);
return 0;
}
static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
{
struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
if (wm_adsp_fw[dsp->fw].num_caps != 0)
wm_adsp_buffer_free(dsp);
dsp->fatal_error = false;
}
int wm_adsp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct wm_adsp *dsp = &dsps[w->shift];
int ret = 0;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
flush_work(&dsp->boot_work);
ret = cs_dsp_run(&dsp->cs_dsp);
break;
case SND_SOC_DAPM_PRE_PMD:
cs_dsp_stop(&dsp->cs_dsp);
break;
default:
break;
}
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_event);
int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
{
char preload[32];
snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
snd_soc_component_disable_pin(component, preload);
cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
dsp->component = component;
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
{
cs_dsp_cleanup_debugfs(&dsp->cs_dsp);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
int wm_adsp2_init(struct wm_adsp *dsp)
{
int ret;
INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);
dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
ret = cs_dsp_adsp2_init(&dsp->cs_dsp);
if (ret)
return ret;
return wm_adsp_common_init(dsp);
}
EXPORT_SYMBOL_GPL(wm_adsp2_init);
int wm_halo_init(struct wm_adsp *dsp)
{
int ret;
INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);
dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
ret = cs_dsp_halo_init(&dsp->cs_dsp);
if (ret)
return ret;
return wm_adsp_common_init(dsp);
}
EXPORT_SYMBOL_GPL(wm_halo_init);
void wm_adsp2_remove(struct wm_adsp *dsp)
{
cs_dsp_remove(&dsp->cs_dsp);
}
EXPORT_SYMBOL_GPL(wm_adsp2_remove);
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)
{
struct wm_adsp_compr_buf *buf = NULL, *tmp;
if (compr->dsp->fatal_error)
return -EINVAL;
list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
if (!tmp->name || !strcmp(compr->name, tmp->name)) {
buf = tmp;
break;
}
}
if (!buf)
return -EINVAL;
compr->buf = buf;
buf->compr = compr;
return 0;
}
static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
{
if (!compr)
return;
/* Wake the poll so it can see buffer is no longer attached */
if (compr->stream)
snd_compr_fragment_elapsed(compr->stream);
if (wm_adsp_compr_attached(compr)) {
compr->buf->compr = NULL;
compr->buf = NULL;
}
}
int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr, *tmp;
struct snd_soc_pcm_runtime *rtd = stream->private_data;
int ret = 0;
mutex_lock(&dsp->cs_dsp.pwr_lock);
if (wm_adsp_fw[dsp->fw].num_caps == 0) {
adsp_err(dsp, "%s: Firmware does not support compressed API\n",
asoc_rtd_to_codec(rtd, 0)->name);
ret = -ENXIO;
goto out;
}
if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
adsp_err(dsp, "%s: Firmware does not support stream direction\n",
asoc_rtd_to_codec(rtd, 0)->name);
ret = -EINVAL;
goto out;
}
list_for_each_entry(tmp, &dsp->compr_list, list) {
if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) {
adsp_err(dsp, "%s: Only a single stream supported per dai\n",
asoc_rtd_to_codec(rtd, 0)->name);
ret = -EBUSY;
goto out;
}
}
compr = kzalloc(sizeof(*compr), GFP_KERNEL);
if (!compr) {
ret = -ENOMEM;
goto out;
}
compr->dsp = dsp;
compr->stream = stream;
compr->name = asoc_rtd_to_codec(rtd, 0)->name;
list_add_tail(&compr->list, &dsp->compr_list);
stream->runtime->private_data = compr;
out:
mutex_unlock(&dsp->cs_dsp.pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
int wm_adsp_compr_free(struct snd_soc_component *component,
struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
mutex_lock(&dsp->cs_dsp.pwr_lock);
wm_adsp_compr_detach(compr);
list_del(&compr->list);
kfree(compr->raw_buf);
kfree(compr);
mutex_unlock(&dsp->cs_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 % CS_DSP_DATA_WORD_SIZE) {
compr_err(compr, "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;
}
compr_err(compr, "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 / CS_DSP_DATA_WORD_SIZE;
}
int wm_adsp_compr_set_params(struct snd_soc_component *component,
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;
compr_dbg(compr, "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_soc_component *component,
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 inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
unsigned int field_offset, u32 *data)
{
return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
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 cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
buf->host_buf_ptr + field_offset,
data);
}
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;
buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
GFP_KERNEL);
if (!buf->regions)
return -ENOMEM;
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;
compr_dbg(buf,
"region=%d type=%d base=%08x off=%08x size=%08x\n",
i, region->mem_type, region->base_addr,
region->offset, region->cumulative_size);
}
return 0;
}
static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
{
buf->irq_count = 0xFFFFFFFF;
buf->read_index = -1;
buf->avail = 0;
}
static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
{
struct wm_adsp_compr_buf *buf;
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
return NULL;
buf->dsp = dsp;
wm_adsp_buffer_clear(buf);
return buf;
}
static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
{
struct cs_dsp_alg_region *alg_region;
struct wm_adsp_compr_buf *buf;
u32 xmalg, addr, magic;
int i, ret;
alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
if (!alg_region) {
adsp_err(dsp, "No algorithm region found\n");
return -EINVAL;
}
xmalg = dsp->sys_config_size / sizeof(__be32);
addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
if (ret < 0)
return ret;
if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
return -ENODEV;
buf = wm_adsp_buffer_alloc(dsp);
if (!buf)
return -ENOMEM;
addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
for (i = 0; i < 5; ++i) {
ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
&buf->host_buf_ptr);
if (ret < 0)
goto err;
if (buf->host_buf_ptr)
break;
usleep_range(1000, 2000);
}
if (!buf->host_buf_ptr) {
ret = -EIO;
goto err;
}
buf->host_buf_mem_type = WMFW_ADSP2_XM;
ret = wm_adsp_buffer_populate(buf);
if (ret < 0)
goto err;
list_add_tail(&buf->list, &dsp->buffer_list);
compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
return 0;
err:
kfree(buf);
return ret;
}
static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)
{
struct wm_adsp_host_buf_coeff_v1 coeff_v1;
struct wm_adsp_compr_buf *buf;
struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
unsigned int version = 0;
int ret, i;
for (i = 0; i < 5; ++i) {
ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,
min(cs_ctl->len, sizeof(coeff_v1)));
if (ret < 0)
return ret;
if (coeff_v1.host_buf_ptr)
break;
usleep_range(1000, 2000);
}
if (!coeff_v1.host_buf_ptr) {
adsp_err(dsp, "Failed to acquire host buffer\n");
return -EIO;
}
buf = wm_adsp_buffer_alloc(dsp);
if (!buf)
return -ENOMEM;
buf->host_buf_mem_type = cs_ctl->alg_region.type;
buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
ret = wm_adsp_buffer_populate(buf);
if (ret < 0)
goto err;
/*
* v0 host_buffer coefficients didn't have versioning, so if the
* control is one word, assume version 0.
*/
if (cs_ctl->len == 4)
goto done;
version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
adsp_err(dsp,
"Host buffer coeff ver %u > supported version %u\n",
version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
ret = -EINVAL;
goto err;
}
cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
(char *)&coeff_v1.name);
done:
list_add_tail(&buf->list, &dsp->buffer_list);
compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
buf->host_buf_ptr, version);
return version;
err:
kfree(buf);
return ret;
}
static int wm_adsp_buffer_init(struct wm_adsp *dsp)
{
struct cs_dsp_coeff_ctl *cs_ctl;
int ret;
list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {
if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
continue;
if (!cs_ctl->enabled)
continue;
ret = wm_adsp_buffer_parse_coeff(cs_ctl);
if (ret < 0) {
adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
goto error;
} else if (ret == 0) {
/* Only one buffer supported for version 0 */
return 0;
}
}
if (list_empty(&dsp->buffer_list)) {
/* Fall back to legacy support */
ret = wm_adsp_buffer_parse_legacy(dsp);
if (ret == -ENODEV)
adsp_info(dsp, "Legacy support not available\n");
else if (ret)
adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);
}
return 0;
error:
wm_adsp_buffer_free(dsp);
return ret;
}
static int wm_adsp_buffer_free(struct wm_adsp *dsp)
{
struct wm_adsp_compr_buf *buf, *tmp;
list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
wm_adsp_compr_detach(buf->compr);
kfree(buf->name);
kfree(buf->regions);
list_del(&buf->list);
kfree(buf);
}
return 0;
}
static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
{
int ret;
ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
if (ret < 0) {
compr_err(buf, "Failed to check buffer error: %d\n", ret);
return ret;
}
if (buf->error != 0) {
compr_err(buf, "Buffer error occurred: %d\n", buf->error);
return -EIO;
}
return 0;
}
int wm_adsp_compr_trigger(struct snd_soc_component *component,
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;
compr_dbg(compr, "Trigger: %d\n", cmd);
mutex_lock(&dsp->cs_dsp.pwr_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (!wm_adsp_compr_attached(compr)) {
ret = wm_adsp_compr_attach(compr);
if (ret < 0) {
compr_err(compr, "Failed to link buffer and stream: %d\n",
ret);
break;
}
}
ret = wm_adsp_buffer_get_error(compr->buf);
if (ret < 0)
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) {
compr_err(compr, "Failed to set high water mark: %d\n",
ret);
break;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
if (wm_adsp_compr_attached(compr))
wm_adsp_buffer_clear(compr->buf);
break;
default:
ret = -EINVAL;
break;
}
mutex_unlock(&dsp->cs_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) {
compr_dbg(buf, "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);
compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
buf->read_index, write_index, avail * CS_DSP_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->cs_dsp.pwr_lock);
if (list_empty(&dsp->buffer_list)) {
ret = -ENODEV;
goto out;
}
adsp_dbg(dsp, "Handling buffer IRQ\n");
list_for_each_entry(buf, &dsp->buffer_list, list) {
compr = buf->compr;
ret = wm_adsp_buffer_get_error(buf);
if (ret < 0)
goto out_notify; /* Wake poll to report error */
ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
&buf->irq_count);
if (ret < 0) {
compr_err(buf, "Failed to get irq_count: %d\n", ret);
goto out;
}
ret = wm_adsp_buffer_update_avail(buf);
if (ret < 0) {
compr_err(buf, "Error reading avail: %d\n", ret);
goto out;
}
if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
ret = WM_ADSP_COMPR_VOICE_TRIGGER;
out_notify:
if (compr && compr->stream)
snd_compr_fragment_elapsed(compr->stream);
}
out:
mutex_unlock(&dsp->cs_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;
compr_dbg(buf, "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_soc_component *component,
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;
compr_dbg(compr, "Pointer request\n");
mutex_lock(&dsp->cs_dsp.pwr_lock);
buf = compr->buf;
if (dsp->fatal_error || !buf || buf->error) {
snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
ret = -EIO;
goto out;
}
if (buf->avail < wm_adsp_compr_frag_words(compr)) {
ret = wm_adsp_buffer_update_avail(buf);
if (ret < 0) {
compr_err(compr, "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_get_error(buf);
if (ret < 0) {
if (buf->error)
snd_compr_stop_error(stream,
SNDRV_PCM_STATE_XRUN);
goto out;
}
ret = wm_adsp_buffer_reenable_irq(buf);
if (ret < 0) {
compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
ret);
goto out;
}
}
}
tstamp->copied_total = compr->copied_total;
tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
tstamp->sampling_rate = compr->sample_rate;
out:
mutex_unlock(&dsp->cs_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;
unsigned int adsp_addr;
int mem_type, nwords, max_read;
int i, 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 = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,
nwords, (__be32 *)compr->raw_buf);
if (ret < 0)
return ret;
cs_dsp_remove_padding(compr->raw_buf, nwords);
/* 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;
compr_dbg(compr, "Requested read of %zu bytes\n", count);
if (dsp->fatal_error || !compr->buf || compr->buf->error) {
snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
return -EIO;
}
count /= CS_DSP_DATA_WORD_SIZE;
do {
nwords = wm_adsp_buffer_capture_block(compr, count);
if (nwords < 0) {
compr_err(compr, "Failed to capture block: %d\n",
nwords);
return nwords;
}
nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
compr_dbg(compr, "Read %d bytes\n", nbytes);
if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
compr_err(compr, "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_soc_component *component,
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->cs_dsp.pwr_lock);
if (stream->direction == SND_COMPRESS_CAPTURE)
ret = wm_adsp_compr_read(compr, buf, count);
else
ret = -ENOTSUPP;
mutex_unlock(&dsp->cs_dsp.pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)
{
struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
struct wm_adsp_compr *compr;
dsp->fatal_error = true;
list_for_each_entry(compr, &dsp->compr_list, list) {
if (compr->stream)
snd_compr_fragment_elapsed(compr->stream);
}
}
irqreturn_t wm_adsp2_bus_error(int irq, void *data)
{
struct wm_adsp *dsp = (struct wm_adsp *)data;
cs_dsp_adsp2_bus_error(&dsp->cs_dsp);
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
irqreturn_t wm_halo_bus_error(int irq, void *data)
{
struct wm_adsp *dsp = (struct wm_adsp *)data;
cs_dsp_halo_bus_error(&dsp->cs_dsp);
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(wm_halo_bus_error);
irqreturn_t wm_halo_wdt_expire(int irq, void *data)
{
struct wm_adsp *dsp = data;
cs_dsp_halo_wdt_expire(&dsp->cs_dsp);
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
static const struct cs_dsp_client_ops wm_adsp1_client_ops = {
.control_add = wm_adsp_control_add,
.control_remove = wm_adsp_control_remove,
};
static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
.control_add = wm_adsp_control_add,
.control_remove = wm_adsp_control_remove,
.post_run = wm_adsp_event_post_run,
.post_stop = wm_adsp_event_post_stop,
.watchdog_expired = wm_adsp_fatal_error,
};
MODULE_LICENSE("GPL v2");
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