diff options
Diffstat (limited to 'sound/soc/codecs/wm_adsp.c')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 2055 |
1 files changed, 2055 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c new file mode 100644 index 000000000..2cfca78f0 --- /dev/null +++ b/sound/soc/codecs/wm_adsp.c @@ -0,0 +1,2055 @@ +// 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, + ®ion->base_addr); + if (ret < 0) + goto err; + + ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, + &offset); + if (ret < 0) + goto err; + + 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; + +err: + kfree(buf->regions); + return ret; +} + +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"); |