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linux/sound/soc/codecs/wm_adsp.c
Charles Keepax 01ec57a437
ASoC: wm_adsp: Allow bus error handler to be called directly 
There is no need for end drivers to add helper functions to allow the
bus error handler to be called, simply update the prototype so it can be
called directly.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190725163931.24964-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-07-25 17:42:35 +01:00

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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/vmalloc.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "wm_adsp.h"
#define adsp_crit(_dsp, fmt, ...) \
dev_crit(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_err(_dsp, fmt, ...) \
dev_err(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_warn(_dsp, fmt, ...) \
dev_warn(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_info(_dsp, fmt, ...) \
dev_info(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_dbg(_dsp, fmt, ...) \
dev_dbg(_dsp->dev, "%s: " fmt, _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 ADSP1_CONTROL_1 0x00
#define ADSP1_CONTROL_2 0x02
#define ADSP1_CONTROL_3 0x03
#define ADSP1_CONTROL_4 0x04
#define ADSP1_CONTROL_5 0x06
#define ADSP1_CONTROL_6 0x07
#define ADSP1_CONTROL_7 0x08
#define ADSP1_CONTROL_8 0x09
#define ADSP1_CONTROL_9 0x0A
#define ADSP1_CONTROL_10 0x0B
#define ADSP1_CONTROL_11 0x0C
#define ADSP1_CONTROL_12 0x0D
#define ADSP1_CONTROL_13 0x0F
#define ADSP1_CONTROL_14 0x10
#define ADSP1_CONTROL_15 0x11
#define ADSP1_CONTROL_16 0x12
#define ADSP1_CONTROL_17 0x13
#define ADSP1_CONTROL_18 0x14
#define ADSP1_CONTROL_19 0x16
#define ADSP1_CONTROL_20 0x17
#define ADSP1_CONTROL_21 0x18
#define ADSP1_CONTROL_22 0x1A
#define ADSP1_CONTROL_23 0x1B
#define ADSP1_CONTROL_24 0x1C
#define ADSP1_CONTROL_25 0x1E
#define ADSP1_CONTROL_26 0x20
#define ADSP1_CONTROL_27 0x21
#define ADSP1_CONTROL_28 0x22
#define ADSP1_CONTROL_29 0x23
#define ADSP1_CONTROL_30 0x24
#define ADSP1_CONTROL_31 0x26
/*
* ADSP1 Control 19
*/
#define ADSP1_WDMA_BUFFER_LENGTH_MASK 0x00FF /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_SHIFT 0 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_WIDTH 8 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
/*
* ADSP1 Control 30
*/
#define ADSP1_DBG_CLK_ENA 0x0008 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_MASK 0x0008 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_SHIFT 3 /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_WIDTH 1 /* DSP1_DBG_CLK_ENA */
#define ADSP1_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
#define ADSP1_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
#define ADSP1_START 0x0001 /* DSP1_START */
#define ADSP1_START_MASK 0x0001 /* DSP1_START */
#define ADSP1_START_SHIFT 0 /* DSP1_START */
#define ADSP1_START_WIDTH 1 /* DSP1_START */
/*
* ADSP1 Control 31
*/
#define ADSP1_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
#define ADSP1_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
#define ADSP1_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
#define ADSP2_CONTROL 0x0
#define ADSP2_CLOCKING 0x1
#define ADSP2V2_CLOCKING 0x2
#define ADSP2_STATUS1 0x4
#define ADSP2_WDMA_CONFIG_1 0x30
#define ADSP2_WDMA_CONFIG_2 0x31
#define ADSP2V2_WDMA_CONFIG_2 0x32
#define ADSP2_RDMA_CONFIG_1 0x34
#define ADSP2_SCRATCH0 0x40
#define ADSP2_SCRATCH1 0x41
#define ADSP2_SCRATCH2 0x42
#define ADSP2_SCRATCH3 0x43
#define ADSP2V2_SCRATCH0_1 0x40
#define ADSP2V2_SCRATCH2_3 0x42
/*
* ADSP2 Control
*/
#define ADSP2_MEM_ENA 0x0010 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_MASK 0x0010 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_SHIFT 4 /* DSP1_MEM_ENA */
#define ADSP2_MEM_ENA_WIDTH 1 /* DSP1_MEM_ENA */
#define ADSP2_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
#define ADSP2_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
#define ADSP2_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
#define ADSP2_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
#define ADSP2_START 0x0001 /* DSP1_START */
#define ADSP2_START_MASK 0x0001 /* DSP1_START */
#define ADSP2_START_SHIFT 0 /* DSP1_START */
#define ADSP2_START_WIDTH 1 /* DSP1_START */
/*
* ADSP2 clocking
*/
#define ADSP2_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
#define ADSP2_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
#define ADSP2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
/*
* ADSP2V2 clocking
*/
#define ADSP2V2_CLK_SEL_MASK 0x70000 /* CLK_SEL_ENA */
#define ADSP2V2_CLK_SEL_SHIFT 16 /* CLK_SEL_ENA */
#define ADSP2V2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
#define ADSP2V2_RATE_MASK 0x7800 /* DSP_RATE */
#define ADSP2V2_RATE_SHIFT 11 /* DSP_RATE */
#define ADSP2V2_RATE_WIDTH 4 /* DSP_RATE */
/*
* ADSP2 Status 1
*/
#define ADSP2_RAM_RDY 0x0001
#define ADSP2_RAM_RDY_MASK 0x0001
#define ADSP2_RAM_RDY_SHIFT 0
#define ADSP2_RAM_RDY_WIDTH 1
/*
* ADSP2 Lock support
*/
#define ADSP2_LOCK_CODE_0 0x5555
#define ADSP2_LOCK_CODE_1 0xAAAA
#define ADSP2_WATCHDOG 0x0A
#define ADSP2_BUS_ERR_ADDR 0x52
#define ADSP2_REGION_LOCK_STATUS 0x64
#define ADSP2_LOCK_REGION_1_LOCK_REGION_0 0x66
#define ADSP2_LOCK_REGION_3_LOCK_REGION_2 0x68
#define ADSP2_LOCK_REGION_5_LOCK_REGION_4 0x6A
#define ADSP2_LOCK_REGION_7_LOCK_REGION_6 0x6C
#define ADSP2_LOCK_REGION_9_LOCK_REGION_8 0x6E
#define ADSP2_LOCK_REGION_CTRL 0x7A
#define ADSP2_PMEM_ERR_ADDR_XMEM_ERR_ADDR 0x7C
#define ADSP2_REGION_LOCK_ERR_MASK 0x8000
#define ADSP2_SLAVE_ERR_MASK 0x4000
#define ADSP2_WDT_TIMEOUT_STS_MASK 0x2000
#define ADSP2_CTRL_ERR_PAUSE_ENA 0x0002
#define ADSP2_CTRL_ERR_EINT 0x0001
#define ADSP2_BUS_ERR_ADDR_MASK 0x00FFFFFF
#define ADSP2_XMEM_ERR_ADDR_MASK 0x0000FFFF
#define ADSP2_PMEM_ERR_ADDR_MASK 0x7FFF0000
#define ADSP2_PMEM_ERR_ADDR_SHIFT 16
#define ADSP2_WDT_ENA_MASK 0xFFFFFFFD
#define ADSP2_LOCK_REGION_SHIFT 16
#define ADSP_MAX_STD_CTRL_SIZE 512
#define WM_ADSP_ACKED_CTL_TIMEOUT_MS 100
#define WM_ADSP_ACKED_CTL_N_QUICKPOLLS 10
#define WM_ADSP_ACKED_CTL_MIN_VALUE 0
#define WM_ADSP_ACKED_CTL_MAX_VALUE 0xFFFFFF
/*
* Event control messages
*/
#define WM_ADSP_FW_EVENT_SHUTDOWN 0x000001
/*
* HALO system info
*/
#define HALO_AHBM_WINDOW_DEBUG_0 0x02040
#define HALO_AHBM_WINDOW_DEBUG_1 0x02044
/*
* HALO core
*/
#define HALO_SCRATCH1 0x005c0
#define HALO_SCRATCH2 0x005c8
#define HALO_SCRATCH3 0x005d0
#define HALO_SCRATCH4 0x005d8
#define HALO_CCM_CORE_CONTROL 0x41000
#define HALO_CORE_SOFT_RESET 0x00010
#define HALO_WDT_CONTROL 0x47000
/*
* HALO MPU banks
*/
#define HALO_MPU_XMEM_ACCESS_0 0x43000
#define HALO_MPU_YMEM_ACCESS_0 0x43004
#define HALO_MPU_WINDOW_ACCESS_0 0x43008
#define HALO_MPU_XREG_ACCESS_0 0x4300C
#define HALO_MPU_YREG_ACCESS_0 0x43014
#define HALO_MPU_XMEM_ACCESS_1 0x43018
#define HALO_MPU_YMEM_ACCESS_1 0x4301C
#define HALO_MPU_WINDOW_ACCESS_1 0x43020
#define HALO_MPU_XREG_ACCESS_1 0x43024
#define HALO_MPU_YREG_ACCESS_1 0x4302C
#define HALO_MPU_XMEM_ACCESS_2 0x43030
#define HALO_MPU_YMEM_ACCESS_2 0x43034
#define HALO_MPU_WINDOW_ACCESS_2 0x43038
#define HALO_MPU_XREG_ACCESS_2 0x4303C
#define HALO_MPU_YREG_ACCESS_2 0x43044
#define HALO_MPU_XMEM_ACCESS_3 0x43048
#define HALO_MPU_YMEM_ACCESS_3 0x4304C
#define HALO_MPU_WINDOW_ACCESS_3 0x43050
#define HALO_MPU_XREG_ACCESS_3 0x43054
#define HALO_MPU_YREG_ACCESS_3 0x4305C
#define HALO_MPU_XM_VIO_ADDR 0x43100
#define HALO_MPU_XM_VIO_STATUS 0x43104
#define HALO_MPU_YM_VIO_ADDR 0x43108
#define HALO_MPU_YM_VIO_STATUS 0x4310C
#define HALO_MPU_PM_VIO_ADDR 0x43110
#define HALO_MPU_PM_VIO_STATUS 0x43114
#define HALO_MPU_LOCK_CONFIG 0x43140
/*
* HALO_AHBM_WINDOW_DEBUG_1
*/
#define HALO_AHBM_CORE_ERR_ADDR_MASK 0x0fffff00
#define HALO_AHBM_CORE_ERR_ADDR_SHIFT 8
#define HALO_AHBM_FLAGS_ERR_MASK 0x000000ff
/*
* HALO_CCM_CORE_CONTROL
*/
#define HALO_CORE_EN 0x00000001
/*
* HALO_CORE_SOFT_RESET
*/
#define HALO_CORE_SOFT_RESET_MASK 0x00000001
/*
* HALO_WDT_CONTROL
*/
#define HALO_WDT_EN_MASK 0x00000001
/*
* HALO_MPU_?M_VIO_STATUS
*/
#define HALO_MPU_VIO_STS_MASK 0x007e0000
#define HALO_MPU_VIO_STS_SHIFT 17
#define HALO_MPU_VIO_ERR_WR_MASK 0x00008000
#define HALO_MPU_VIO_ERR_SRC_MASK 0x00007fff
#define HALO_MPU_VIO_ERR_SRC_SHIFT 0
static struct wm_adsp_ops wm_adsp1_ops;
static struct wm_adsp_ops wm_adsp2_ops[];
static struct wm_adsp_ops wm_halo_ops;
struct wm_adsp_buf {
struct list_head list;
void *buf;
};
static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
struct list_head *list)
{
struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (buf == NULL)
return NULL;
buf->buf = vmalloc(len);
if (!buf->buf) {
kfree(buf);
return NULL;
}
memcpy(buf->buf, src, len);
if (list)
list_add_tail(&buf->list, list);
return buf;
}
static void wm_adsp_buf_free(struct list_head *list)
{
while (!list_empty(list)) {
struct wm_adsp_buf *buf = list_first_entry(list,
struct wm_adsp_buf,
list);
list_del(&buf->list);
vfree(buf->buf);
kfree(buf);
}
}
#define WM_ADSP_FW_MBC_VSS 0
#define WM_ADSP_FW_HIFI 1
#define WM_ADSP_FW_TX 2
#define WM_ADSP_FW_TX_SPK 3
#define WM_ADSP_FW_RX 4
#define WM_ADSP_FW_RX_ANC 5
#define WM_ADSP_FW_CTRL 6
#define WM_ADSP_FW_ASR 7
#define WM_ADSP_FW_TRACE 8
#define WM_ADSP_FW_SPK_PROT 9
#define WM_ADSP_FW_MISC 10
#define WM_ADSP_NUM_FW 11
static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
[WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
[WM_ADSP_FW_HIFI] = "MasterHiFi",
[WM_ADSP_FW_TX] = "Tx",
[WM_ADSP_FW_TX_SPK] = "Tx Speaker",
[WM_ADSP_FW_RX] = "Rx",
[WM_ADSP_FW_RX_ANC] = "Rx ANC",
[WM_ADSP_FW_CTRL] = "Voice Ctrl",
[WM_ADSP_FW_ASR] = "ASR Assist",
[WM_ADSP_FW_TRACE] = "Dbg Trace",
[WM_ADSP_FW_SPK_PROT] = "Protection",
[WM_ADSP_FW_MISC] = "Misc",
};
struct wm_adsp_system_config_xm_hdr {
__be32 sys_enable;
__be32 fw_id;
__be32 fw_rev;
__be32 boot_status;
__be32 watchdog;
__be32 dma_buffer_size;
__be32 rdma[6];
__be32 wdma[8];
__be32 build_job_name[3];
__be32 build_job_number;
};
struct wm_halo_system_config_xm_hdr {
__be32 halo_heartbeat;
__be32 build_job_name[3];
__be32 build_job_number;
};
struct wm_adsp_alg_xm_struct {
__be32 magic;
__be32 smoothing;
__be32 threshold;
__be32 host_buf_ptr;
__be32 start_seq;
__be32 high_water_mark;
__be32 low_water_mark;
__be64 smoothed_power;
};
struct wm_adsp_host_buf_coeff_v1 {
__be32 host_buf_ptr; /* Host buffer pointer */
__be32 versions; /* Version numbers */
__be32 name[4]; /* The buffer name */
};
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) */
};
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_DATA_WORD_SIZE 3
#define WM_ADSP_MIN_FRAGMENTS 1
#define WM_ADSP_MAX_FRAGMENTS 256
#define WM_ADSP_MIN_FRAGMENT_SIZE (64 * WM_ADSP_DATA_WORD_SIZE)
#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * WM_ADSP_DATA_WORD_SIZE)
#define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
#define HOST_BUFFER_FIELD(field) \
(offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
#define ALG_XM_FIELD(field) \
(offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
#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" },
[WM_ADSP_FW_MISC] = { .file = "misc" },
};
struct wm_coeff_ctl_ops {
int (*xget)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int (*xput)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
};
struct wm_coeff_ctl {
const char *name;
const char *fw_name;
struct wm_adsp_alg_region alg_region;
struct wm_coeff_ctl_ops ops;
struct wm_adsp *dsp;
unsigned int enabled:1;
struct list_head list;
void *cache;
unsigned int offset;
size_t len;
unsigned int set:1;
struct soc_bytes_ext bytes_ext;
unsigned int flags;
unsigned int type;
};
static const char *wm_adsp_mem_region_name(unsigned int type)
{
switch (type) {
case WMFW_ADSP1_PM:
return "PM";
case WMFW_HALO_PM_PACKED:
return "PM_PACKED";
case WMFW_ADSP1_DM:
return "DM";
case WMFW_ADSP2_XM:
return "XM";
case WMFW_HALO_XM_PACKED:
return "XM_PACKED";
case WMFW_ADSP2_YM:
return "YM";
case WMFW_HALO_YM_PACKED:
return "YM_PACKED";
case WMFW_ADSP1_ZM:
return "ZM";
default:
return NULL;
}
}
#ifdef CONFIG_DEBUG_FS
static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
{
char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
kfree(dsp->wmfw_file_name);
dsp->wmfw_file_name = tmp;
}
static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
{
char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
kfree(dsp->bin_file_name);
dsp->bin_file_name = tmp;
}
static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
{
kfree(dsp->wmfw_file_name);
kfree(dsp->bin_file_name);
dsp->wmfw_file_name = NULL;
dsp->bin_file_name = NULL;
}
static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wm_adsp *dsp = file->private_data;
ssize_t ret;
mutex_lock(&dsp->pwr_lock);
if (!dsp->wmfw_file_name || !dsp->booted)
ret = 0;
else
ret = simple_read_from_buffer(user_buf, count, ppos,
dsp->wmfw_file_name,
strlen(dsp->wmfw_file_name));
mutex_unlock(&dsp->pwr_lock);
return ret;
}
static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wm_adsp *dsp = file->private_data;
ssize_t ret;
mutex_lock(&dsp->pwr_lock);
if (!dsp->bin_file_name || !dsp->booted)
ret = 0;
else
ret = simple_read_from_buffer(user_buf, count, ppos,
dsp->bin_file_name,
strlen(dsp->bin_file_name));
mutex_unlock(&dsp->pwr_lock);
return ret;
}
static const struct {
const char *name;
const struct file_operations fops;
} wm_adsp_debugfs_fops[] = {
{
.name = "wmfw_file_name",
.fops = {
.open = simple_open,
.read = wm_adsp_debugfs_wmfw_read,
},
},
{
.name = "bin_file_name",
.fops = {
.open = simple_open,
.read = wm_adsp_debugfs_bin_read,
},
},
};
static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
struct snd_soc_component *component)
{
struct dentry *root = NULL;
int i;
root = debugfs_create_dir(dsp->name, component->debugfs_root);
debugfs_create_bool("booted", 0444, root, &dsp->booted);
debugfs_create_bool("running", 0444, root, &dsp->running);
debugfs_create_x32("fw_id", 0444, root, &dsp->fw_id);
debugfs_create_x32("fw_version", 0444, root, &dsp->fw_id_version);
for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i)
debugfs_create_file(wm_adsp_debugfs_fops[i].name, 0444, root,
dsp, &wm_adsp_debugfs_fops[i].fops);
dsp->debugfs_root = root;
}
static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
wm_adsp_debugfs_clear(dsp);
debugfs_remove_recursive(dsp->debugfs_root);
}
#else
static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
struct snd_soc_component *component)
{
}
static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
}
static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
const char *s)
{
}
static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
const char *s)
{
}
static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
{
}
#endif
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 = 0;
if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
return 0;
if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
return -EINVAL;
mutex_lock(&dsp[e->shift_l].pwr_lock);
if (dsp[e->shift_l].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].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 struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
int type)
{
int i;
for (i = 0; i < dsp->num_mems; i++)
if (dsp->mem[i].type == type)
return &dsp->mem[i];
return NULL;
}
static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
unsigned int offset)
{
switch (mem->type) {
case WMFW_ADSP1_PM:
return mem->base + (offset * 3);
case WMFW_ADSP1_DM:
case WMFW_ADSP2_XM:
case WMFW_ADSP2_YM:
case WMFW_ADSP1_ZM:
return mem->base + (offset * 2);
default:
WARN(1, "Unknown memory region type");
return offset;
}
}
static unsigned int wm_halo_region_to_reg(struct wm_adsp_region const *mem,
unsigned int offset)
{
switch (mem->type) {
case WMFW_ADSP2_XM:
case WMFW_ADSP2_YM:
return mem->base + (offset * 4);
case WMFW_HALO_XM_PACKED:
case WMFW_HALO_YM_PACKED:
return (mem->base + (offset * 3)) & ~0x3;
case WMFW_HALO_PM_PACKED:
return mem->base + (offset * 5);
default:
WARN(1, "Unknown memory region type");
return offset;
}
}
static void wm_adsp_read_fw_status(struct wm_adsp *dsp,
int noffs, unsigned int *offs)
{
unsigned int i;
int ret;
for (i = 0; i < noffs; ++i) {
ret = regmap_read(dsp->regmap, dsp->base + offs[i], &offs[i]);
if (ret) {
adsp_err(dsp, "Failed to read SCRATCH%u: %d\n", i, ret);
return;
}
}
}
static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
{
unsigned int offs[] = {
ADSP2_SCRATCH0, ADSP2_SCRATCH1, ADSP2_SCRATCH2, ADSP2_SCRATCH3,
};
wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
offs[0], offs[1], offs[2], offs[3]);
}
static void wm_adsp2v2_show_fw_status(struct wm_adsp *dsp)
{
unsigned int offs[] = { ADSP2V2_SCRATCH0_1, ADSP2V2_SCRATCH2_3 };
wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
offs[0] & 0xFFFF, offs[0] >> 16,
offs[1] & 0xFFFF, offs[1] >> 16);
}
static void wm_halo_show_fw_status(struct wm_adsp *dsp)
{
unsigned int offs[] = {
HALO_SCRATCH1, HALO_SCRATCH2, HALO_SCRATCH3, HALO_SCRATCH4,
};
wm_adsp_read_fw_status(dsp, ARRAY_SIZE(offs), offs);
adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
offs[0], offs[1], offs[2], offs[3]);
}
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_base_reg(struct wm_coeff_ctl *ctl, unsigned int *reg)
{
const struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
struct wm_adsp *dsp = ctl->dsp;
const struct wm_adsp_region *mem;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
*reg = dsp->ops->region_to_reg(mem, ctl->alg_region.base + ctl->offset);
return 0;
}
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);
switch (ctl->type) {
case WMFW_CTL_TYPE_ACKED:
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.min = WM_ADSP_ACKED_CTL_MIN_VALUE;
uinfo->value.integer.max = WM_ADSP_ACKED_CTL_MAX_VALUE;
uinfo->value.integer.step = 1;
uinfo->count = 1;
break;
default:
uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
uinfo->count = ctl->len;
break;
}
return 0;
}
static int wm_coeff_write_acked_control(struct wm_coeff_ctl *ctl,
unsigned int event_id)
{
struct wm_adsp *dsp = ctl->dsp;
u32 val = cpu_to_be32(event_id);
unsigned int reg;
int i, ret;
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
adsp_dbg(dsp, "Sending 0x%x to acked control alg 0x%x %s:0x%x\n",
event_id, ctl->alg_region.alg,
wm_adsp_mem_region_name(ctl->alg_region.type), ctl->offset);
ret = regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
if (ret) {
adsp_err(dsp, "Failed to write %x: %d\n", reg, ret);
return ret;
}
/*
* Poll for ack, we initially poll at ~1ms intervals for firmwares
* that respond quickly, then go to ~10ms polls. A firmware is unlikely
* to ack instantly so we do the first 1ms delay before reading the
* control to avoid a pointless bus transaction
*/
for (i = 0; i < WM_ADSP_ACKED_CTL_TIMEOUT_MS;) {
switch (i) {
case 0 ... WM_ADSP_ACKED_CTL_N_QUICKPOLLS - 1:
usleep_range(1000, 2000);
i++;
break;
default:
usleep_range(10000, 20000);
i += 10;
break;
}
ret = regmap_raw_read(dsp->regmap, reg, &val, sizeof(val));
if (ret) {
adsp_err(dsp, "Failed to read %x: %d\n", reg, ret);
return ret;
}
if (val == 0) {
adsp_dbg(dsp, "Acked control ACKED at poll %u\n", i);
return 0;
}
}
adsp_warn(dsp, "Acked control @0x%x alg:0x%x %s:0x%x timed out\n",
reg, ctl->alg_region.alg,
wm_adsp_mem_region_name(ctl->alg_region.type),
ctl->offset);
return -ETIMEDOUT;
}
static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
const void *buf, size_t len)
{
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
if (!scratch)
return -ENOMEM;
ret = regmap_raw_write(dsp->regmap, reg, scratch,
len);
if (ret) {
adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
len, reg, ret);
kfree(scratch);
return ret;
}
adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
kfree(scratch);
return 0;
}
static int wm_coeff_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
char *p = ucontrol->value.bytes.data;
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
ret = -EPERM;
else
memcpy(ctl->cache, p, ctl->len);
ctl->set = 1;
if (ctl->enabled && ctl->dsp->running)
ret = wm_coeff_write_control(ctl, p, ctl->len);
mutex_unlock(&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);
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
if (copy_from_user(ctl->cache, bytes, size)) {
ret = -EFAULT;
} else {
ctl->set = 1;
if (ctl->enabled && ctl->dsp->running)
ret = wm_coeff_write_control(ctl, ctl->cache, size);
else if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
ret = -EPERM;
}
mutex_unlock(&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);
unsigned int val = ucontrol->value.integer.value[0];
int ret;
if (val == 0)
return 0; /* 0 means no event */
mutex_lock(&ctl->dsp->pwr_lock);
if (ctl->enabled && ctl->dsp->running)
ret = wm_coeff_write_acked_control(ctl, val);
else
ret = -EPERM;
mutex_unlock(&ctl->dsp->pwr_lock);
return ret;
}
static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
void *buf, size_t len)
{
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
if (!scratch)
return -ENOMEM;
ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
if (ret) {
adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
len, reg, ret);
kfree(scratch);
return ret;
}
adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
memcpy(buf, scratch, len);
kfree(scratch);
return 0;
}
static int wm_coeff_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_bytes_ext *bytes_ext =
(struct soc_bytes_ext *)kctl->private_value;
struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
char *p = ucontrol->value.bytes.data;
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
if (ctl->enabled && ctl->dsp->running)
ret = wm_coeff_read_control(ctl, p, ctl->len);
else
ret = -EPERM;
} else {
if (!ctl->flags && ctl->enabled && ctl->dsp->running)
ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
memcpy(p, ctl->cache, ctl->len);
}
mutex_unlock(&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);
int ret = 0;
mutex_lock(&ctl->dsp->pwr_lock);
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
if (ctl->enabled && ctl->dsp->running)
ret = wm_coeff_read_control(ctl, ctl->cache, size);
else
ret = -EPERM;
} else {
if (!ctl->flags && ctl->enabled && ctl->dsp->running)
ret = wm_coeff_read_control(ctl, ctl->cache, size);
}
if (!ret && copy_to_user(bytes, ctl->cache, size))
ret = -EFAULT;
mutex_unlock(&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;
}
struct wmfw_ctl_work {
struct wm_adsp *dsp;
struct wm_coeff_ctl *ctl;
struct work_struct work;
};
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) {
if (in & WMFW_CTL_FLAG_READABLE)
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 int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
{
struct snd_kcontrol_new *kcontrol;
int ret;
if (!ctl || !ctl->name)
return -EINVAL;
kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
if (!kcontrol)
return -ENOMEM;
kcontrol->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(ctl->flags, ctl->len);
switch (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 = 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;
}
ret = snd_soc_add_component_controls(dsp->component, kcontrol, 1);
if (ret < 0)
goto err_kcontrol;
kfree(kcontrol);
return 0;
err_kcontrol:
kfree(kcontrol);
return ret;
}
static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled || ctl->set)
continue;
if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
continue;
/*
* For readable controls populate the cache from the DSP memory.
* For non-readable controls the cache was zero-filled when
* created so we don't need to do anything.
*/
if (!ctl->flags || (ctl->flags & WMFW_CTL_FLAG_READABLE)) {
ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
if (ret < 0)
return ret;
}
}
return 0;
}
static int wm_coeff_sync_controls(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!ctl->enabled)
continue;
if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
if (ret < 0)
return ret;
}
}
return 0;
}
static void wm_adsp_signal_event_controls(struct wm_adsp *dsp,
unsigned int event)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (ctl->type != WMFW_CTL_TYPE_HOSTEVENT)
continue;
if (!ctl->enabled)
continue;
ret = wm_coeff_write_acked_control(ctl, event);
if (ret)
adsp_warn(dsp,
"Failed to send 0x%x event to alg 0x%x (%d)\n",
event, ctl->alg_region.alg, ret);
}
}
static void wm_adsp_ctl_work(struct work_struct *work)
{
struct wmfw_ctl_work *ctl_work = container_of(work,
struct wmfw_ctl_work,
work);
wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
kfree(ctl_work);
}
static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
{
kfree(ctl->cache);
kfree(ctl->name);
kfree(ctl);
}
static int wm_adsp_create_control(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region,
unsigned int offset, unsigned int len,
const char *subname, unsigned int subname_len,
unsigned int flags, unsigned int type)
{
struct wm_coeff_ctl *ctl;
struct wmfw_ctl_work *ctl_work;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
const char *region_name;
int ret;
region_name = wm_adsp_mem_region_name(alg_region->type);
if (!region_name) {
adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
return -EINVAL;
}
switch (dsp->fw_ver) {
case 0:
case 1:
snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s %x",
dsp->name, region_name, alg_region->alg);
subname = NULL; /* don't append subname */
break;
case 2:
ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"%s%c %.12s %x", dsp->name, *region_name,
wm_adsp_fw_text[dsp->fw], alg_region->alg);
break;
default:
ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
"%s %.12s %x", dsp->name,
wm_adsp_fw_text[dsp->fw], alg_region->alg);
break;
}
if (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 (subname_len > avail)
skip = subname_len - avail;
snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
" %.*s", subname_len - skip, subname + skip);
}
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (!strcmp(ctl->name, name)) {
if (!ctl->enabled)
ctl->enabled = 1;
return 0;
}
}
ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
if (!ctl)
return -ENOMEM;
ctl->fw_name = wm_adsp_fw_text[dsp->fw];
ctl->alg_region = *alg_region;
ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
if (!ctl->name) {
ret = -ENOMEM;
goto err_ctl;
}
ctl->enabled = 1;
ctl->set = 0;
ctl->ops.xget = wm_coeff_get;
ctl->ops.xput = wm_coeff_put;
ctl->dsp = dsp;
ctl->flags = flags;
ctl->type = type;
ctl->offset = offset;
ctl->len = len;
ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
if (!ctl->cache) {
ret = -ENOMEM;
goto err_ctl_name;
}
list_add(&ctl->list, &dsp->ctl_list);
if (flags & WMFW_CTL_FLAG_SYS)
return 0;
ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
if (!ctl_work) {
ret = -ENOMEM;
goto err_ctl_cache;
}
ctl_work->dsp = dsp;
ctl_work->ctl = ctl;
INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
schedule_work(&ctl_work->work);
return 0;
err_ctl_cache:
kfree(ctl->cache);
err_ctl_name:
kfree(ctl->name);
err_ctl:
kfree(ctl);
return ret;
}
struct wm_coeff_parsed_alg {
int id;
const u8 *name;
int name_len;
int ncoeff;
};
struct wm_coeff_parsed_coeff {
int offset;
int mem_type;
const u8 *name;
int name_len;
int ctl_type;
int flags;
int len;
};
static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
{
int length;
switch (bytes) {
case 1:
length = **pos;
break;
case 2:
length = le16_to_cpu(*((__le16 *)*pos));
break;
default:
return 0;
}
if (str)
*str = *pos + bytes;
*pos += ((length + bytes) + 3) & ~0x03;
return length;
}
static int wm_coeff_parse_int(int bytes, const u8 **pos)
{
int val = 0;
switch (bytes) {
case 2:
val = le16_to_cpu(*((__le16 *)*pos));
break;
case 4:
val = le32_to_cpu(*((__le32 *)*pos));
break;
default:
break;
}
*pos += bytes;
return val;
}
static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
struct wm_coeff_parsed_alg *blk)
{
const struct wmfw_adsp_alg_data *raw;
switch (dsp->fw_ver) {
case 0:
case 1:
raw = (const struct wmfw_adsp_alg_data *)*data;
*data = raw->data;
blk->id = le32_to_cpu(raw->id);
blk->name = raw->name;
blk->name_len = strlen(raw->name);
blk->ncoeff = le32_to_cpu(raw->ncoeff);
break;
default:
blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
&blk->name);
wm_coeff_parse_string(sizeof(u16), data, NULL);
blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
break;
}
adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
}
static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
struct wm_coeff_parsed_coeff *blk)
{
const struct wmfw_adsp_coeff_data *raw;
const u8 *tmp;
int length;
switch (dsp->fw_ver) {
case 0:
case 1:
raw = (const struct wmfw_adsp_coeff_data *)*data;
*data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
blk->offset = le16_to_cpu(raw->hdr.offset);
blk->mem_type = le16_to_cpu(raw->hdr.type);
blk->name = raw->name;
blk->name_len = strlen(raw->name);
blk->ctl_type = le16_to_cpu(raw->ctl_type);
blk->flags = le16_to_cpu(raw->flags);
blk->len = le32_to_cpu(raw->len);
break;
default:
tmp = *data;
blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
&blk->name);
wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
*data = *data + sizeof(raw->hdr) + length;
break;
}
adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
}
static int wm_adsp_check_coeff_flags(struct wm_adsp *dsp,
const struct wm_coeff_parsed_coeff *coeff_blk,
unsigned int f_required,
unsigned int f_illegal)
{
if ((coeff_blk->flags & f_illegal) ||
((coeff_blk->flags & f_required) != f_required)) {
adsp_err(dsp, "Illegal flags 0x%x for control type 0x%x\n",
coeff_blk->flags, coeff_blk->ctl_type);
return -EINVAL;
}
return 0;
}
static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
const struct wmfw_region *region)
{
struct wm_adsp_alg_region alg_region = {};
struct wm_coeff_parsed_alg alg_blk;
struct wm_coeff_parsed_coeff coeff_blk;
const u8 *data = region->data;
int i, ret;
wm_coeff_parse_alg(dsp, &data, &alg_blk);
for (i = 0; i < alg_blk.ncoeff; i++) {
wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
switch (coeff_blk.ctl_type) {
case SNDRV_CTL_ELEM_TYPE_BYTES:
break;
case WMFW_CTL_TYPE_ACKED:
if (coeff_blk.flags & WMFW_CTL_FLAG_SYS)
continue; /* ignore */
ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
WMFW_CTL_FLAG_VOLATILE |
WMFW_CTL_FLAG_WRITEABLE |
WMFW_CTL_FLAG_READABLE,
0);
if (ret)
return -EINVAL;
break;
case WMFW_CTL_TYPE_HOSTEVENT:
ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
WMFW_CTL_FLAG_SYS |
WMFW_CTL_FLAG_VOLATILE |
WMFW_CTL_FLAG_WRITEABLE |
WMFW_CTL_FLAG_READABLE,
0);
if (ret)
return -EINVAL;
break;
case WMFW_CTL_TYPE_HOST_BUFFER:
ret = wm_adsp_check_coeff_flags(dsp, &coeff_blk,
WMFW_CTL_FLAG_SYS |
WMFW_CTL_FLAG_VOLATILE |
WMFW_CTL_FLAG_READABLE,
0);
if (ret)
return -EINVAL;
break;
default:
adsp_err(dsp, "Unknown control type: %d\n",
coeff_blk.ctl_type);
return -EINVAL;
}
alg_region.type = coeff_blk.mem_type;
alg_region.alg = alg_blk.id;
ret = wm_adsp_create_control(dsp, &alg_region,
coeff_blk.offset,
coeff_blk.len,
coeff_blk.name,
coeff_blk.name_len,
coeff_blk.flags,
coeff_blk.ctl_type);
if (ret < 0)
adsp_err(dsp, "Failed to create control: %.*s, %d\n",
coeff_blk.name_len, coeff_blk.name, ret);
}
return 0;
}
static unsigned int wm_adsp1_parse_sizes(struct wm_adsp *dsp,
const char * const file,
unsigned int pos,
const struct firmware *firmware)
{
const struct wmfw_adsp1_sizes *adsp1_sizes;
adsp1_sizes = (void *)&firmware->data[pos];
adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n", file,
le32_to_cpu(adsp1_sizes->dm), le32_to_cpu(adsp1_sizes->pm),
le32_to_cpu(adsp1_sizes->zm));
return pos + sizeof(*adsp1_sizes);
}
static unsigned int wm_adsp2_parse_sizes(struct wm_adsp *dsp,
const char * const file,
unsigned int pos,
const struct firmware *firmware)
{
const struct wmfw_adsp2_sizes *adsp2_sizes;
adsp2_sizes = (void *)&firmware->data[pos];
adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n", file,
le32_to_cpu(adsp2_sizes->xm), le32_to_cpu(adsp2_sizes->ym),
le32_to_cpu(adsp2_sizes->pm), le32_to_cpu(adsp2_sizes->zm));
return pos + sizeof(*adsp2_sizes);
}
static bool wm_adsp_validate_version(struct wm_adsp *dsp, unsigned int version)
{
switch (version) {
case 0:
adsp_warn(dsp, "Deprecated file format %d\n", version);
return true;
case 1:
case 2:
return true;
default:
return false;
}
}
static bool wm_halo_validate_version(struct wm_adsp *dsp, unsigned int version)
{
switch (version) {
case 3:
return true;
default:
return false;
}
}
static int wm_adsp_load(struct wm_adsp *dsp)
{
LIST_HEAD(buf_list);
const struct firmware *firmware;
struct regmap *regmap = dsp->regmap;
unsigned int pos = 0;
const struct wmfw_header *header;
const struct wmfw_adsp1_sizes *adsp1_sizes;
const struct wmfw_footer *footer;
const struct wmfw_region *region;
const struct wm_adsp_region *mem;
const char *region_name;
char *file, *text = NULL;
struct wm_adsp_buf *buf;
unsigned int reg;
int regions = 0;
int ret, offset, type;
file = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (file == NULL)
return -ENOMEM;
snprintf(file, PAGE_SIZE, "%s-%s-%s.wmfw", dsp->part, dsp->fwf_name,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';
ret = request_firmware(&firmware, file, dsp->dev);
if (ret != 0) {
adsp_err(dsp, "Failed to request '%s'\n", file);
goto out;
}
ret = -EINVAL;
pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
if (pos >= firmware->size) {
adsp_err(dsp, "%s: file too short, %zu bytes\n",
file, firmware->size);
goto out_fw;
}
header = (void *)&firmware->data[0];
if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
adsp_err(dsp, "%s: invalid magic\n", file);
goto out_fw;
}
if (!dsp->ops->validate_version(dsp, header->ver)) {
adsp_err(dsp, "%s: unknown file format %d\n",
file, header->ver);
goto out_fw;
}
adsp_info(dsp, "Firmware version: %d\n", header->ver);
dsp->fw_ver = header->ver;
if (header->core != dsp->type) {
adsp_err(dsp, "%s: invalid core %d != %d\n",
file, header->core, dsp->type);
goto out_fw;
}
pos = sizeof(*header);
pos = dsp->ops->parse_sizes(dsp, file, pos, firmware);
footer = (void *)&firmware->data[pos];
pos += sizeof(*footer);
if (le32_to_cpu(header->len) != pos) {
adsp_err(dsp, "%s: unexpected header length %d\n",
file, le32_to_cpu(header->len));
goto out_fw;
}
adsp_dbg(dsp, "%s: timestamp %llu\n", file,
le64_to_cpu(footer->timestamp));
while (pos < firmware->size &&
sizeof(*region) < firmware->size - pos) {
region = (void *)&(firmware->data[pos]);
region_name = "Unknown";
reg = 0;
text = NULL;
offset = le32_to_cpu(region->offset) & 0xffffff;
type = be32_to_cpu(region->type) & 0xff;
switch (type) {
case WMFW_NAME_TEXT:
region_name = "Firmware name";
text = kzalloc(le32_to_cpu(region->len) + 1,
GFP_KERNEL);
break;
case WMFW_ALGORITHM_DATA:
region_name = "Algorithm";
ret = wm_adsp_parse_coeff(dsp, region);
if (ret != 0)
goto out_fw;
break;
case WMFW_INFO_TEXT:
region_name = "Information";
text = kzalloc(le32_to_cpu(region->len) + 1,
GFP_KERNEL);
break;
case WMFW_ABSOLUTE:
region_name = "Absolute";
reg = offset;
break;
case WMFW_ADSP1_PM:
case WMFW_ADSP1_DM:
case WMFW_ADSP2_XM:
case WMFW_ADSP2_YM:
case WMFW_ADSP1_ZM:
case WMFW_HALO_PM_PACKED:
case WMFW_HALO_XM_PACKED:
case WMFW_HALO_YM_PACKED:
mem = wm_adsp_find_region(dsp, type);
if (!mem) {
adsp_err(dsp, "No region of type: %x\n", type);
goto out_fw;
}
region_name = wm_adsp_mem_region_name(type);
reg = dsp->ops->region_to_reg(mem, offset);
break;
default:
adsp_warn(dsp,
"%s.%d: Unknown region type %x at %d(%x)\n",
file, regions, type, pos, pos);
break;
}
adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
regions, le32_to_cpu(region->len), offset,
region_name);
if (le32_to_cpu(region->len) >
firmware->size - pos - sizeof(*region)) {
adsp_err(dsp,
"%s.%d: %s region len %d bytes exceeds file length %zu\n",
file, regions, region_name,
le32_to_cpu(region->len), firmware->size);
ret = -EINVAL;
goto out_fw;
}
if (text) {
memcpy(text, region->data, le32_to_cpu(region->len));
adsp_info(dsp, "%s: %s\n", file, text);
kfree(text);
text = NULL;
}
if (reg) {
buf = wm_adsp_buf_alloc(region->data,
le32_to_cpu(region->len),
&buf_list);
if (!buf) {
adsp_err(dsp, "Out of memory\n");
ret = -ENOMEM;
goto out_fw;
}
ret = regmap_raw_write_async(regmap, reg, buf->buf,
le32_to_cpu(region->len));
if (ret != 0) {
adsp_err(dsp,
"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
file, regions,
le32_to_cpu(region->len), offset,
region_name, ret);
goto out_fw;
}
}
pos += le32_to_cpu(region->len) + sizeof(*region);
regions++;
}
ret = regmap_async_complete(regmap);
if (ret != 0) {
adsp_err(dsp, "Failed to complete async write: %d\n", ret);
goto out_fw;
}
if (pos > firmware->size)
adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
file, regions, pos - firmware->size);
wm_adsp_debugfs_save_wmfwname(dsp, file);
out_fw:
regmap_async_complete(regmap);
wm_adsp_buf_free(&buf_list);
release_firmware(firmware);
kfree(text);
out:
kfree(file);
return ret;
}
static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region)
{
struct wm_coeff_ctl *ctl;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
alg_region->alg == ctl->alg_region.alg &&
alg_region->type == ctl->alg_region.type) {
ctl->alg_region.base = alg_region->base;
}
}
}
static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
const struct wm_adsp_region *mem,
unsigned int pos, unsigned int len)
{
void *alg;
unsigned int reg;
int ret;
__be32 val;
if (n_algs == 0) {
adsp_err(dsp, "No algorithms\n");
return ERR_PTR(-EINVAL);
}
if (n_algs > 1024) {
adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
return ERR_PTR(-EINVAL);
}
/* Read the terminator first to validate the length */
reg = dsp->ops->region_to_reg(mem, pos + len);
ret = regmap_raw_read(dsp->regmap, reg, &val, sizeof(val));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm list end: %d\n",
ret);
return ERR_PTR(ret);
}
if (be32_to_cpu(val) != 0xbedead)
adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbedead\n",
reg, be32_to_cpu(val));
/* Convert length from DSP words to bytes */
len *= sizeof(u32);
alg = kzalloc(len, GFP_KERNEL | GFP_DMA);
if (!alg)
return ERR_PTR(-ENOMEM);
reg = dsp->ops->region_to_reg(mem, pos);
ret = regmap_raw_read(dsp->regmap, reg, alg, len);
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
kfree(alg);
return ERR_PTR(ret);
}
return alg;
}
static struct wm_adsp_alg_region *
wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
{
struct wm_adsp_alg_region *alg_region;
list_for_each_entry(alg_region, &dsp->alg_regions, list) {
if (id == alg_region->alg && type == alg_region->type)
return alg_region;
}
return NULL;
}
static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
int type, __be32 id,
__be32 base)
{
struct wm_adsp_alg_region *alg_region;
alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
if (!alg_region)
return ERR_PTR(-ENOMEM);
alg_region->type = type;
alg_region->alg = be32_to_cpu(id);
alg_region->base = be32_to_cpu(base);
list_add_tail(&alg_region->list, &dsp->alg_regions);
if (dsp->fw_ver > 0)
wm_adsp_ctl_fixup_base(dsp, alg_region);
return alg_region;
}
static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
{
struct wm_adsp_alg_region *alg_region;
while (!list_empty(&dsp->alg_regions)) {
alg_region = list_first_entry(&dsp->alg_regions,
struct wm_adsp_alg_region,
list);
list_del(&alg_region->list);
kfree(alg_region);
}
}
static void wmfw_parse_id_header(struct wm_adsp *dsp,
struct wmfw_id_hdr *fw, int nalgs)
{
dsp->fw_id = be32_to_cpu(fw->id);
dsp->fw_id_version = be32_to_cpu(fw->ver);
adsp_info(dsp, "Firmware: %x v%d.%d.%d, %d algorithms\n",
dsp->fw_id, (dsp->fw_id_version & 0xff0000) >> 16,
(dsp->fw_id_version & 0xff00) >> 8, dsp->fw_id_version & 0xff,
nalgs);
}
static void wmfw_v3_parse_id_header(struct wm_adsp *dsp,
struct wmfw_v3_id_hdr *fw, int nalgs)
{
dsp->fw_id = be32_to_cpu(fw->id);
dsp->fw_id_version = be32_to_cpu(fw->ver);
dsp->fw_vendor_id = be32_to_cpu(fw->vendor_id);
adsp_info(dsp, "Firmware: %x vendor: 0x%x v%d.%d.%d, %d algorithms\n",
dsp->fw_id, dsp->fw_vendor_id,
(dsp->fw_id_version & 0xff0000) >> 16,
(dsp->fw_id_version & 0xff00) >> 8, dsp->fw_id_version & 0xff,
nalgs);
}
static int wm_adsp_create_regions(struct wm_adsp *dsp, __be32 id, int nregions,
int *type, __be32 *base)
{
struct wm_adsp_alg_region *alg_region;
int i;
for (i = 0; i < nregions; i++) {
alg_region = wm_adsp_create_region(dsp, type[i], id, base[i]);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
}
return 0;
}
static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
{
struct wmfw_adsp1_id_hdr adsp1_id;
struct wmfw_adsp1_alg_hdr *adsp1_alg;
struct wm_adsp_alg_region *alg_region;
const struct wm_adsp_region *mem;
unsigned int pos, len;
size_t n_algs;
int i, ret;
mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
if (WARN_ON(!mem))
return -EINVAL;
ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
sizeof(adsp1_id));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm info: %d\n",
ret);
return ret;
}
n_algs = be32_to_cpu(adsp1_id.n_algs);
wmfw_parse_id_header(dsp, &adsp1_id.fw, n_algs);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
adsp1_id.fw.id, adsp1_id.zm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
adsp1_id.fw.id, adsp1_id.dm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
/* Calculate offset and length in DSP words */
pos = sizeof(adsp1_id) / sizeof(u32);
len = (sizeof(*adsp1_alg) * n_algs) / sizeof(u32);
adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
if (IS_ERR(adsp1_alg))
return PTR_ERR(adsp1_alg);
for (i = 0; i < n_algs; i++) {
adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
i, be32_to_cpu(adsp1_alg[i].alg.id),
(be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
(be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
be32_to_cpu(adsp1_alg[i].dm),
be32_to_cpu(adsp1_alg[i].zm));
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
adsp1_alg[i].alg.id,
adsp1_alg[i].dm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp1_alg[i + 1].dm);
len -= be32_to_cpu(adsp1_alg[i].dm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0,
SNDRV_CTL_ELEM_TYPE_BYTES);
} else {
adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
adsp1_alg[i].alg.id,
adsp1_alg[i].zm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp1_alg[i + 1].zm);
len -= be32_to_cpu(adsp1_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0,
SNDRV_CTL_ELEM_TYPE_BYTES);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp1_alg[i].alg.id));
}
}
}
out:
kfree(adsp1_alg);
return ret;
}
static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
{
struct wmfw_adsp2_id_hdr adsp2_id;
struct wmfw_adsp2_alg_hdr *adsp2_alg;
struct wm_adsp_alg_region *alg_region;
const struct wm_adsp_region *mem;
unsigned int pos, len;
size_t n_algs;
int i, ret;
mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
if (WARN_ON(!mem))
return -EINVAL;
ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
sizeof(adsp2_id));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm info: %d\n",
ret);
return ret;
}
n_algs = be32_to_cpu(adsp2_id.n_algs);
wmfw_parse_id_header(dsp, &adsp2_id.fw, n_algs);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
adsp2_id.fw.id, adsp2_id.xm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
adsp2_id.fw.id, adsp2_id.ym);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
adsp2_id.fw.id, adsp2_id.zm);
if (IS_ERR(alg_region))
return PTR_ERR(alg_region);
/* Calculate offset and length in DSP words */
pos = sizeof(adsp2_id) / sizeof(u32);
len = (sizeof(*adsp2_alg) * n_algs) / sizeof(u32);
adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
if (IS_ERR(adsp2_alg))
return PTR_ERR(adsp2_alg);
for (i = 0; i < n_algs; i++) {
adsp_info(dsp,
"%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
i, be32_to_cpu(adsp2_alg[i].alg.id),
(be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
(be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
be32_to_cpu(adsp2_alg[i].xm),
be32_to_cpu(adsp2_alg[i].ym),
be32_to_cpu(adsp2_alg[i].zm));
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
adsp2_alg[i].alg.id,
adsp2_alg[i].xm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].xm);
len -= be32_to_cpu(adsp2_alg[i].xm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0,
SNDRV_CTL_ELEM_TYPE_BYTES);
} else {
adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
adsp2_alg[i].alg.id,
adsp2_alg[i].ym);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].ym);
len -= be32_to_cpu(adsp2_alg[i].ym);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0,
SNDRV_CTL_ELEM_TYPE_BYTES);
} else {
adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
adsp2_alg[i].alg.id,
adsp2_alg[i].zm);
if (IS_ERR(alg_region)) {
ret = PTR_ERR(alg_region);
goto out;
}
if (dsp->fw_ver == 0) {
if (i + 1 < n_algs) {
len = be32_to_cpu(adsp2_alg[i + 1].zm);
len -= be32_to_cpu(adsp2_alg[i].zm);
len *= 4;
wm_adsp_create_control(dsp, alg_region, 0,
len, NULL, 0, 0,
SNDRV_CTL_ELEM_TYPE_BYTES);
} else {
adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
be32_to_cpu(adsp2_alg[i].alg.id));
}
}
}
out:
kfree(adsp2_alg);
return ret;
}
static int wm_halo_create_regions(struct wm_adsp *dsp, __be32 id,
__be32 xm_base, __be32 ym_base)
{
int types[] = {
WMFW_ADSP2_XM, WMFW_HALO_XM_PACKED,
WMFW_ADSP2_YM, WMFW_HALO_YM_PACKED
};
__be32 bases[] = { xm_base, xm_base, ym_base, ym_base };
return wm_adsp_create_regions(dsp, id, ARRAY_SIZE(types), types, bases);
}
static int wm_halo_setup_algs(struct wm_adsp *dsp)
{
struct wmfw_halo_id_hdr halo_id;
struct wmfw_halo_alg_hdr *halo_alg;
const struct wm_adsp_region *mem;
unsigned int pos, len;
size_t n_algs;
int i, ret;
mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
if (WARN_ON(!mem))
return -EINVAL;
ret = regmap_raw_read(dsp->regmap, mem->base, &halo_id,
sizeof(halo_id));
if (ret != 0) {
adsp_err(dsp, "Failed to read algorithm info: %d\n",
ret);
return ret;
}
n_algs = be32_to_cpu(halo_id.n_algs);
wmfw_v3_parse_id_header(dsp, &halo_id.fw, n_algs);
ret = wm_halo_create_regions(dsp, halo_id.fw.id,
halo_id.xm_base, halo_id.ym_base);
if (ret)
return ret;
/* Calculate offset and length in DSP words */
pos = sizeof(halo_id) / sizeof(u32);
len = (sizeof(*halo_alg) * n_algs) / sizeof(u32);
halo_alg = wm_adsp_read_algs(dsp, n_algs, mem, pos, len);
if (IS_ERR(halo_alg))
return PTR_ERR(halo_alg);
for (i = 0; i < n_algs; i++) {
adsp_info(dsp,
"%d: ID %x v%d.%d.%d XM@%x YM@%x\n",
i, be32_to_cpu(halo_alg[i].alg.id),
(be32_to_cpu(halo_alg[i].alg.ver) & 0xff0000) >> 16,
(be32_to_cpu(halo_alg[i].alg.ver) & 0xff00) >> 8,
be32_to_cpu(halo_alg[i].alg.ver) & 0xff,
be32_to_cpu(halo_alg[i].xm_base),
be32_to_cpu(halo_alg[i].ym_base));
ret = wm_halo_create_regions(dsp, halo_alg[i].alg.id,
halo_alg[i].xm_base,
halo_alg[i].ym_base);
if (ret)
goto out;
}
out:
kfree(halo_alg);
return ret;
}
static int wm_adsp_load_coeff(struct wm_adsp *dsp)
{
LIST_HEAD(buf_list);
struct regmap *regmap = dsp->regmap;
struct wmfw_coeff_hdr *hdr;
struct wmfw_coeff_item *blk;
const struct firmware *firmware;
const struct wm_adsp_region *mem;
struct wm_adsp_alg_region *alg_region;
const char *region_name;
int ret, pos, blocks, type, offset, reg;
char *file;
struct wm_adsp_buf *buf;
file = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (file == NULL)
return -ENOMEM;
snprintf(file, PAGE_SIZE, "%s-%s-%s.bin", dsp->part, dsp->fwf_name,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';
ret = request_firmware(&firmware, file, dsp->dev);
if (ret != 0) {
adsp_warn(dsp, "Failed to request '%s'\n", file);
ret = 0;
goto out;
}
ret = -EINVAL;
if (sizeof(*hdr) >= firmware->size) {
adsp_err(dsp, "%s: file too short, %zu bytes\n",
file, firmware->size);
goto out_fw;
}
hdr = (void *)&firmware->data[0];
if (memcmp(hdr->magic, "WMDR", 4) != 0) {
adsp_err(dsp, "%s: invalid magic\n", file);
goto out_fw;
}
switch (be32_to_cpu(hdr->rev) & 0xff) {
case 1:
break;
default:
adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
file, be32_to_cpu(hdr->rev) & 0xff);
ret = -EINVAL;
goto out_fw;
}
adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
(le32_to_cpu(hdr->ver) >> 16) & 0xff,
(le32_to_cpu(hdr->ver) >> 8) & 0xff,
le32_to_cpu(hdr->ver) & 0xff);
pos = le32_to_cpu(hdr->len);
blocks = 0;
while (pos < firmware->size &&
sizeof(*blk) < firmware->size - pos) {
blk = (void *)(&firmware->data[pos]);
type = le16_to_cpu(blk->type);
offset = le16_to_cpu(blk->offset);
adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
file, blocks, le32_to_cpu(blk->id),
(le32_to_cpu(blk->ver) >> 16) & 0xff,
(le32_to_cpu(blk->ver) >> 8) & 0xff,
le32_to_cpu(blk->ver) & 0xff);
adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
file, blocks, le32_to_cpu(blk->len), offset, type);
reg = 0;
region_name = "Unknown";
switch (type) {
case (WMFW_NAME_TEXT << 8):
case (WMFW_INFO_TEXT << 8):
break;
case (WMFW_ABSOLUTE << 8):
/*
* Old files may use this for global
* coefficients.
*/
if (le32_to_cpu(blk->id) == dsp->fw_id &&
offset == 0) {
region_name = "global coefficients";
mem = wm_adsp_find_region(dsp, type);
if (!mem) {
adsp_err(dsp, "No ZM\n");
break;
}
reg = dsp->ops->region_to_reg(mem, 0);
} else {
region_name = "register";
reg = offset;
}
break;
case WMFW_ADSP1_DM:
case WMFW_ADSP1_ZM:
case WMFW_ADSP2_XM:
case WMFW_ADSP2_YM:
case WMFW_HALO_XM_PACKED:
case WMFW_HALO_YM_PACKED:
case WMFW_HALO_PM_PACKED:
adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
file, blocks, le32_to_cpu(blk->len),
type, le32_to_cpu(blk->id));
mem = wm_adsp_find_region(dsp, type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n", type);
break;
}
alg_region = wm_adsp_find_alg_region(dsp, type,
le32_to_cpu(blk->id));
if (alg_region) {
reg = alg_region->base;
reg = dsp->ops->region_to_reg(mem, reg);
reg += offset;
} else {
adsp_err(dsp, "No %x for algorithm %x\n",
type, le32_to_cpu(blk->id));
}
break;
default:
adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
file, blocks, type, pos);
break;
}
if (reg) {
if (le32_to_cpu(blk->len) >
firmware->size - pos - sizeof(*blk)) {
adsp_err(dsp,
"%s.%d: %s region len %d bytes exceeds file length %zu\n",
file, blocks, region_name,
le32_to_cpu(blk->len),
firmware->size);
ret = -EINVAL;
goto out_fw;
}
buf = wm_adsp_buf_alloc(blk->data,
le32_to_cpu(blk->len),
&buf_list);
if (!buf) {
adsp_err(dsp, "Out of memory\n");
ret = -ENOMEM;
goto out_fw;
}
adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
file, blocks, le32_to_cpu(blk->len),
reg);
ret = regmap_raw_write_async(regmap, reg, buf->buf,
le32_to_cpu(blk->len));
if (ret != 0) {
adsp_err(dsp,
"%s.%d: Failed to write to %x in %s: %d\n",
file, blocks, reg, region_name, ret);
}
}
pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
blocks++;
}
ret = regmap_async_complete(regmap);
if (ret != 0)
adsp_err(dsp, "Failed to complete async write: %d\n", ret);
if (pos > firmware->size)
adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
file, blocks, pos - firmware->size);
wm_adsp_debugfs_save_binname(dsp, file);
out_fw:
regmap_async_complete(regmap);
release_firmware(firmware);
wm_adsp_buf_free(&buf_list);
out:
kfree(file);
return ret;
}
static int wm_adsp_create_name(struct wm_adsp *dsp)
{
char *p;
if (!dsp->name) {
dsp->name = devm_kasprintf(dsp->dev, GFP_KERNEL, "DSP%d",
dsp->num);
if (!dsp->name)
return -ENOMEM;
}
if (!dsp->fwf_name) {
p = devm_kstrdup(dsp->dev, dsp->name, GFP_KERNEL);
if (!p)
return -ENOMEM;
dsp->fwf_name = p;
for (; *p != 0; ++p)
*p = tolower(*p);
}
return 0;
}
static int wm_adsp_common_init(struct wm_adsp *dsp)
{
int ret;
ret = wm_adsp_create_name(dsp);
if (ret)
return ret;
INIT_LIST_HEAD(&dsp->alg_regions);
INIT_LIST_HEAD(&dsp->ctl_list);
INIT_LIST_HEAD(&dsp->compr_list);
INIT_LIST_HEAD(&dsp->buffer_list);
mutex_init(&dsp->pwr_lock);
return 0;
}
int wm_adsp1_init(struct wm_adsp *dsp)
{
dsp->ops = &wm_adsp1_ops;
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];
struct wm_coeff_ctl *ctl;
int ret;
unsigned int val;
dsp->component = component;
mutex_lock(&dsp->pwr_lock);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, ADSP1_SYS_ENA);
/*
* For simplicity set the DSP clock rate to be the
* SYSCLK rate rather than making it configurable.
*/
if (dsp->sysclk_reg) {
ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
if (ret != 0) {
adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
ret);
goto err_mutex;
}
val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
ret = regmap_update_bits(dsp->regmap,
dsp->base + ADSP1_CONTROL_31,
ADSP1_CLK_SEL_MASK, val);
if (ret != 0) {
adsp_err(dsp, "Failed to set clock rate: %d\n",
ret);
goto err_mutex;
}
}
ret = wm_adsp_load(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp1_setup_algs(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp_load_coeff(dsp);
if (ret != 0)
goto err_ena;
/* Initialize caches for enabled and unset controls */
ret = wm_coeff_init_control_caches(dsp);
if (ret != 0)
goto err_ena;
/* Sync set controls */
ret = wm_coeff_sync_controls(dsp);
if (ret != 0)
goto err_ena;
dsp->booted = true;
/* Start the core running */
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_CORE_ENA | ADSP1_START,
ADSP1_CORE_ENA | ADSP1_START);
dsp->running = true;
break;
case SND_SOC_DAPM_PRE_PMD:
dsp->running = false;
dsp->booted = false;
/* Halt the core */
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_CORE_ENA | ADSP1_START, 0);
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, 0);
list_for_each_entry(ctl, &dsp->ctl_list, list)
ctl->enabled = 0;
wm_adsp_free_alg_regions(dsp);
break;
default:
break;
}
mutex_unlock(&dsp->pwr_lock);
return 0;
err_ena:
regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
ADSP1_SYS_ENA, 0);
err_mutex:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp1_event);
static int wm_adsp2v2_enable_core(struct wm_adsp *dsp)
{
unsigned int val;
int ret, count;
/* Wait for the RAM to start, should be near instantaneous */
for (count = 0; count < 10; ++count) {
ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
if (ret != 0)
return ret;
if (val & ADSP2_RAM_RDY)
break;
usleep_range(250, 500);
}
if (!(val & ADSP2_RAM_RDY)) {
adsp_err(dsp, "Failed to start DSP RAM\n");
return -EBUSY;
}
adsp_dbg(dsp, "RAM ready after %d polls\n", count);
return 0;
}
static int wm_adsp2_enable_core(struct wm_adsp *dsp)
{
int ret;
ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA, ADSP2_SYS_ENA);
if (ret != 0)
return ret;
return wm_adsp2v2_enable_core(dsp);
}
static int wm_adsp2_lock(struct wm_adsp *dsp, unsigned int lock_regions)
{
struct regmap *regmap = dsp->regmap;
unsigned int code0, code1, lock_reg;
if (!(lock_regions & WM_ADSP2_REGION_ALL))
return 0;
lock_regions &= WM_ADSP2_REGION_ALL;
lock_reg = dsp->base + ADSP2_LOCK_REGION_1_LOCK_REGION_0;
while (lock_regions) {
code0 = code1 = 0;
if (lock_regions & BIT(0)) {
code0 = ADSP2_LOCK_CODE_0;
code1 = ADSP2_LOCK_CODE_1;
}
if (lock_regions & BIT(1)) {
code0 |= ADSP2_LOCK_CODE_0 << ADSP2_LOCK_REGION_SHIFT;
code1 |= ADSP2_LOCK_CODE_1 << ADSP2_LOCK_REGION_SHIFT;
}
regmap_write(regmap, lock_reg, code0);
regmap_write(regmap, lock_reg, code1);
lock_regions >>= 2;
lock_reg += 2;
}
return 0;
}
static int wm_adsp2_enable_memory(struct wm_adsp *dsp)
{
return regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_MEM_ENA, ADSP2_MEM_ENA);
}
static void wm_adsp2_disable_memory(struct wm_adsp *dsp)
{
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_MEM_ENA, 0);
}
static void wm_adsp2_disable_core(struct wm_adsp *dsp)
{
regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_SYS_ENA, 0);
}
static void wm_adsp2v2_disable_core(struct wm_adsp *dsp)
{
regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
regmap_write(dsp->regmap, dsp->base + ADSP2V2_WDMA_CONFIG_2, 0);
}
static void wm_adsp_boot_work(struct work_struct *work)
{
struct wm_adsp *dsp = container_of(work,
struct wm_adsp,
boot_work);
int ret;
mutex_lock(&dsp->pwr_lock);
if (dsp->ops->enable_memory) {
ret = dsp->ops->enable_memory(dsp);
if (ret != 0)
goto err_mutex;
}
if (dsp->ops->enable_core) {
ret = dsp->ops->enable_core(dsp);
if (ret != 0)
goto err_mem;
}
ret = wm_adsp_load(dsp);
if (ret != 0)
goto err_ena;
ret = dsp->ops->setup_algs(dsp);
if (ret != 0)
goto err_ena;
ret = wm_adsp_load_coeff(dsp);
if (ret != 0)
goto err_ena;
/* Initialize caches for enabled and unset controls */
ret = wm_coeff_init_control_caches(dsp);
if (ret != 0)
goto err_ena;
if (dsp->ops->disable_core)
dsp->ops->disable_core(dsp);
dsp->booted = true;
mutex_unlock(&dsp->pwr_lock);
return;
err_ena:
if (dsp->ops->disable_core)
dsp->ops->disable_core(dsp);
err_mem:
if (dsp->ops->disable_memory)
dsp->ops->disable_memory(dsp);
err_mutex:
mutex_unlock(&dsp->pwr_lock);
}
static int wm_halo_configure_mpu(struct wm_adsp *dsp, unsigned int lock_regions)
{
struct reg_sequence config[] = {
{ dsp->base + HALO_MPU_LOCK_CONFIG, 0x5555 },
{ dsp->base + HALO_MPU_LOCK_CONFIG, 0xAAAA },
{ dsp->base + HALO_MPU_XMEM_ACCESS_0, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_YMEM_ACCESS_0, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_WINDOW_ACCESS_0, lock_regions },
{ dsp->base + HALO_MPU_XREG_ACCESS_0, lock_regions },
{ dsp->base + HALO_MPU_YREG_ACCESS_0, lock_regions },
{ dsp->base + HALO_MPU_XMEM_ACCESS_1, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_YMEM_ACCESS_1, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_WINDOW_ACCESS_1, lock_regions },
{ dsp->base + HALO_MPU_XREG_ACCESS_1, lock_regions },
{ dsp->base + HALO_MPU_YREG_ACCESS_1, lock_regions },
{ dsp->base + HALO_MPU_XMEM_ACCESS_2, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_YMEM_ACCESS_2, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_WINDOW_ACCESS_2, lock_regions },
{ dsp->base + HALO_MPU_XREG_ACCESS_2, lock_regions },
{ dsp->base + HALO_MPU_YREG_ACCESS_2, lock_regions },
{ dsp->base + HALO_MPU_XMEM_ACCESS_3, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_YMEM_ACCESS_3, 0xFFFFFFFF },
{ dsp->base + HALO_MPU_WINDOW_ACCESS_3, lock_regions },
{ dsp->base + HALO_MPU_XREG_ACCESS_3, lock_regions },
{ dsp->base + HALO_MPU_YREG_ACCESS_3, lock_regions },
{ dsp->base + HALO_MPU_LOCK_CONFIG, 0 },
};
return regmap_multi_reg_write(dsp->regmap, config, ARRAY_SIZE(config));
}
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];
int ret;
ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CLOCKING,
ADSP2_CLK_SEL_MASK,
freq << ADSP2_CLK_SEL_SHIFT);
if (ret)
adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
return ret;
}
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];
snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->name);
dsp->preloaded = ucontrol->value.integer.value[0];
if (ucontrol->value.integer.value[0])
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);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
static void wm_adsp_stop_watchdog(struct wm_adsp *dsp)
{
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_WATCHDOG,
ADSP2_WDT_ENA_MASK, 0);
}
static void wm_halo_stop_watchdog(struct wm_adsp *dsp)
{
regmap_update_bits(dsp->regmap, dsp->base + HALO_WDT_CONTROL,
HALO_WDT_EN_MASK, 0);
}
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];
struct wm_coeff_ctl *ctl;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
queue_work(system_unbound_wq, &dsp->boot_work);
break;
case SND_SOC_DAPM_PRE_PMD:
mutex_lock(&dsp->pwr_lock);
wm_adsp_debugfs_clear(dsp);
dsp->fw_id = 0;
dsp->fw_id_version = 0;
dsp->booted = false;
if (dsp->ops->disable_memory)
dsp->ops->disable_memory(dsp);
list_for_each_entry(ctl, &dsp->ctl_list, list)
ctl->enabled = 0;
wm_adsp_free_alg_regions(dsp);
mutex_unlock(&dsp->pwr_lock);
adsp_dbg(dsp, "Shutdown complete\n");
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_early_event);
static int wm_adsp2_start_core(struct wm_adsp *dsp)
{
return regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_CORE_ENA | ADSP2_START,
ADSP2_CORE_ENA | ADSP2_START);
}
static void wm_adsp2_stop_core(struct wm_adsp *dsp)
{
regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_CORE_ENA | ADSP2_START, 0);
}
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;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
flush_work(&dsp->boot_work);
mutex_lock(&dsp->pwr_lock);
if (!dsp->booted) {
ret = -EIO;
goto err;
}
if (dsp->ops->enable_core) {
ret = dsp->ops->enable_core(dsp);
if (ret != 0)
goto err;
}
/* Sync set controls */
ret = wm_coeff_sync_controls(dsp);
if (ret != 0)
goto err;
if (dsp->ops->lock_memory) {
ret = dsp->ops->lock_memory(dsp, dsp->lock_regions);
if (ret != 0) {
adsp_err(dsp, "Error configuring MPU: %d\n",
ret);
goto err;
}
}
if (dsp->ops->start_core) {
ret = dsp->ops->start_core(dsp);
if (ret != 0)
goto err;
}
if (wm_adsp_fw[dsp->fw].num_caps != 0) {
ret = wm_adsp_buffer_init(dsp);
if (ret < 0)
goto err;
}
dsp->running = true;
mutex_unlock(&dsp->pwr_lock);
break;
case SND_SOC_DAPM_PRE_PMD:
/* Tell the firmware to cleanup */
wm_adsp_signal_event_controls(dsp, WM_ADSP_FW_EVENT_SHUTDOWN);
if (dsp->ops->stop_watchdog)
dsp->ops->stop_watchdog(dsp);
/* Log firmware state, it can be useful for analysis */
if (dsp->ops->show_fw_status)
dsp->ops->show_fw_status(dsp);
mutex_lock(&dsp->pwr_lock);
dsp->running = false;
if (dsp->ops->stop_core)
dsp->ops->stop_core(dsp);
if (dsp->ops->disable_core)
dsp->ops->disable_core(dsp);
if (wm_adsp_fw[dsp->fw].num_caps != 0)
wm_adsp_buffer_free(dsp);
dsp->fatal_error = false;
mutex_unlock(&dsp->pwr_lock);
adsp_dbg(dsp, "Execution stopped\n");
break;
default:
break;
}
return 0;
err:
if (dsp->ops->stop_core)
dsp->ops->stop_core(dsp);
if (dsp->ops->disable_core)
dsp->ops->disable_core(dsp);
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_event);
static int wm_halo_start_core(struct wm_adsp *dsp)
{
return regmap_update_bits(dsp->regmap,
dsp->base + HALO_CCM_CORE_CONTROL,
HALO_CORE_EN, HALO_CORE_EN);
}
static void wm_halo_stop_core(struct wm_adsp *dsp)
{
regmap_update_bits(dsp->regmap, dsp->base + HALO_CCM_CORE_CONTROL,
HALO_CORE_EN, 0);
/* reset halo core with CORE_SOFT_RESET */
regmap_update_bits(dsp->regmap, dsp->base + HALO_CORE_SOFT_RESET,
HALO_CORE_SOFT_RESET_MASK, 1);
}
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->name);
snd_soc_component_disable_pin(component, preload);
wm_adsp2_init_debugfs(dsp, component);
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)
{
wm_adsp2_cleanup_debugfs(dsp);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
int wm_adsp2_init(struct wm_adsp *dsp)
{
int ret;
ret = wm_adsp_common_init(dsp);
if (ret)
return ret;
switch (dsp->rev) {
case 0:
/*
* Disable the DSP memory by default when in reset for a small
* power saving.
*/
ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
ADSP2_MEM_ENA, 0);
if (ret) {
adsp_err(dsp,
"Failed to clear memory retention: %d\n", ret);
return ret;
}
dsp->ops = &wm_adsp2_ops[0];
break;
case 1:
dsp->ops = &wm_adsp2_ops[1];
break;
default:
dsp->ops = &wm_adsp2_ops[2];
break;
}
INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_init);
int wm_halo_init(struct wm_adsp *dsp)
{
int ret;
ret = wm_adsp_common_init(dsp);
if (ret)
return ret;
dsp->ops = &wm_halo_ops;
INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
return 0;
}
EXPORT_SYMBOL_GPL(wm_halo_init);
void wm_adsp2_remove(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
while (!list_empty(&dsp->ctl_list)) {
ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
list);
list_del(&ctl->list);
wm_adsp_free_ctl_blk(ctl);
}
}
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->pwr_lock);
if (wm_adsp_fw[dsp->fw].num_caps == 0) {
adsp_err(dsp, "%s: Firmware does not support compressed API\n",
rtd->codec_dai->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",
rtd->codec_dai->name);
ret = -EINVAL;
goto out;
}
list_for_each_entry(tmp, &dsp->compr_list, list) {
if (!strcmp(tmp->name, rtd->codec_dai->name)) {
adsp_err(dsp, "%s: Only a single stream supported per dai\n",
rtd->codec_dai->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 = rtd->codec_dai->name;
list_add_tail(&compr->list, &dsp->compr_list);
stream->runtime->private_data = compr;
out:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
int wm_adsp_compr_free(struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
mutex_lock(&dsp->pwr_lock);
wm_adsp_compr_detach(compr);
list_del(&compr->list);
kfree(compr->raw_buf);
kfree(compr);
mutex_unlock(&dsp->pwr_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
struct snd_compr_params *params)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
const struct wm_adsp_fw_caps *caps;
const struct snd_codec_desc *desc;
int i, j;
if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
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 / WM_ADSP_DATA_WORD_SIZE;
}
int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
struct snd_compr_params *params)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
unsigned int size;
int ret;
ret = wm_adsp_compr_check_params(stream, params);
if (ret)
return ret;
compr->size = params->buffer;
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_compr_stream *stream,
struct snd_compr_caps *caps)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
int fw = compr->dsp->fw;
int i;
if (wm_adsp_fw[fw].caps) {
for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
caps->num_codecs = i;
caps->direction = wm_adsp_fw[fw].compr_direction;
caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
}
return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr,
unsigned int num_words, u32 *data)
{
struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
unsigned int i, reg;
int ret;
if (!mem)
return -EINVAL;
reg = dsp->ops->region_to_reg(mem, mem_addr);
ret = regmap_raw_read(dsp->regmap, reg, data,
sizeof(*data) * num_words);
if (ret < 0)
return ret;
for (i = 0; i < num_words; ++i)
data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
return 0;
}
static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr, u32 *data)
{
return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
}
static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
unsigned int mem_addr, u32 data)
{
struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
unsigned int reg;
if (!mem)
return -EINVAL;
reg = dsp->ops->region_to_reg(mem, mem_addr);
data = cpu_to_be32(data & 0x00ffffffu);
return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
}
static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
unsigned int field_offset, u32 *data)
{
return wm_adsp_read_data_word(buf->dsp, 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 wm_adsp_write_data_word(buf->dsp, buf->host_buf_mem_type,
buf->host_buf_ptr + field_offset, data);
}
static void wm_adsp_remove_padding(u32 *buf, int nwords, int data_word_size)
{
u8 *pack_in = (u8 *)buf;
u8 *pack_out = (u8 *)buf;
int i, j;
/* Remove the padding bytes from the data read from the DSP */
for (i = 0; i < nwords; i++) {
for (j = 0; j < data_word_size; j++)
*pack_out++ = *pack_in++;
pack_in += sizeof(*buf) - data_word_size;
}
}
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);
list_add_tail(&buf->list, &dsp->buffer_list);
return buf;
}
static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
{
struct wm_adsp_alg_region *alg_region;
struct wm_adsp_compr_buf *buf;
u32 xmalg, addr, magic;
int i, ret;
buf = wm_adsp_buffer_alloc(dsp);
if (!buf)
return -ENOMEM;
alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
xmalg = dsp->ops->sys_config_size / sizeof(__be32);
addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
if (ret < 0)
return ret;
if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
return -ENODEV;
addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
for (i = 0; i < 5; ++i) {
ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
&buf->host_buf_ptr);
if (ret < 0)
return ret;
if (buf->host_buf_ptr)
break;
usleep_range(1000, 2000);
}
if (!buf->host_buf_ptr)
return -EIO;
buf->host_buf_mem_type = WMFW_ADSP2_XM;
ret = wm_adsp_buffer_populate(buf);
if (ret < 0)
return ret;
compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
return 0;
}
static int wm_adsp_buffer_parse_coeff(struct wm_coeff_ctl *ctl)
{
struct wm_adsp_host_buf_coeff_v1 coeff_v1;
struct wm_adsp_compr_buf *buf;
unsigned int val, reg;
int ret, i;
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
for (i = 0; i < 5; ++i) {
ret = regmap_raw_read(ctl->dsp->regmap, reg, &val, sizeof(val));
if (ret < 0)
return ret;
if (val)
break;
usleep_range(1000, 2000);
}
if (!val) {
adsp_err(ctl->dsp, "Failed to acquire host buffer\n");
return -EIO;
}
buf = wm_adsp_buffer_alloc(ctl->dsp);
if (!buf)
return -ENOMEM;
buf->host_buf_mem_type = ctl->alg_region.type;
buf->host_buf_ptr = be32_to_cpu(val);
ret = wm_adsp_buffer_populate(buf);
if (ret < 0)
return ret;
/*
* v0 host_buffer coefficients didn't have versioning, so if the
* control is one word, assume version 0.
*/
if (ctl->len == 4) {
compr_dbg(buf, "host_buf_ptr=%x\n", buf->host_buf_ptr);
return 0;
}
ret = regmap_raw_read(ctl->dsp->regmap, reg, &coeff_v1,
sizeof(coeff_v1));
if (ret < 0)
return ret;
coeff_v1.versions = be32_to_cpu(coeff_v1.versions);
val = coeff_v1.versions & HOST_BUF_COEFF_COMPAT_VER_MASK;
val >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
if (val > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
adsp_err(ctl->dsp,
"Host buffer coeff ver %u > supported version %u\n",
val, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(coeff_v1.name); i++)
coeff_v1.name[i] = be32_to_cpu(coeff_v1.name[i]);
wm_adsp_remove_padding((u32 *)&coeff_v1.name,
ARRAY_SIZE(coeff_v1.name),
WM_ADSP_DATA_WORD_SIZE);
buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", ctl->dsp->part,
(char *)&coeff_v1.name);
compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
buf->host_buf_ptr, val);
return val;
}
static int wm_adsp_buffer_init(struct wm_adsp *dsp)
{
struct wm_coeff_ctl *ctl;
int ret;
list_for_each_entry(ctl, &dsp->ctl_list, list) {
if (ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
continue;
if (!ctl->enabled)
continue;
ret = wm_adsp_buffer_parse_coeff(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) {
adsp_err(dsp, "Failed to parse legacy: %d\n", ret);
goto error;
}
}
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_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->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->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 * WM_ADSP_DATA_WORD_SIZE);
buf->avail = avail;
return 0;
}
int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
{
struct wm_adsp_compr_buf *buf;
struct wm_adsp_compr *compr;
int ret = 0;
mutex_lock(&dsp->pwr_lock);
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->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_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->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 * WM_ADSP_DATA_WORD_SIZE;
tstamp->sampling_rate = compr->sample_rate;
out:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
{
struct wm_adsp_compr_buf *buf = compr->buf;
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 = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
nwords, compr->raw_buf);
if (ret < 0)
return ret;
wm_adsp_remove_padding(compr->raw_buf, nwords, WM_ADSP_DATA_WORD_SIZE);
/* update read index to account for words read */
buf->read_index += nwords;
if (buf->read_index == wm_adsp_buffer_size(buf))
buf->read_index = 0;
ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
buf->read_index);
if (ret < 0)
return ret;
/* update avail to account for words read */
buf->avail -= nwords;
return nwords;
}
static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
char __user *buf, size_t count)
{
struct wm_adsp *dsp = compr->dsp;
int ntotal = 0;
int nwords, nbytes;
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 /= WM_ADSP_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 * WM_ADSP_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_compr_stream *stream, char __user *buf,
size_t count)
{
struct wm_adsp_compr *compr = stream->runtime->private_data;
struct wm_adsp *dsp = compr->dsp;
int ret;
mutex_lock(&dsp->pwr_lock);
if (stream->direction == SND_COMPRESS_CAPTURE)
ret = wm_adsp_compr_read(compr, buf, count);
else
ret = -ENOTSUPP;
mutex_unlock(&dsp->pwr_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
static void wm_adsp_fatal_error(struct wm_adsp *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;
unsigned int val;
struct regmap *regmap = dsp->regmap;
int ret = 0;
mutex_lock(&dsp->pwr_lock);
ret = regmap_read(regmap, dsp->base + ADSP2_LOCK_REGION_CTRL, &val);
if (ret) {
adsp_err(dsp,
"Failed to read Region Lock Ctrl register: %d\n", ret);
goto error;
}
if (val & ADSP2_WDT_TIMEOUT_STS_MASK) {
adsp_err(dsp, "watchdog timeout error\n");
dsp->ops->stop_watchdog(dsp);
wm_adsp_fatal_error(dsp);
}
if (val & (ADSP2_SLAVE_ERR_MASK | ADSP2_REGION_LOCK_ERR_MASK)) {
if (val & ADSP2_SLAVE_ERR_MASK)
adsp_err(dsp, "bus error: slave error\n");
else
adsp_err(dsp, "bus error: region lock error\n");
ret = regmap_read(regmap, dsp->base + ADSP2_BUS_ERR_ADDR, &val);
if (ret) {
adsp_err(dsp,
"Failed to read Bus Err Addr register: %d\n",
ret);
goto error;
}
adsp_err(dsp, "bus error address = 0x%x\n",
val & ADSP2_BUS_ERR_ADDR_MASK);
ret = regmap_read(regmap,
dsp->base + ADSP2_PMEM_ERR_ADDR_XMEM_ERR_ADDR,
&val);
if (ret) {
adsp_err(dsp,
"Failed to read Pmem Xmem Err Addr register: %d\n",
ret);
goto error;
}
adsp_err(dsp, "xmem error address = 0x%x\n",
val & ADSP2_XMEM_ERR_ADDR_MASK);
adsp_err(dsp, "pmem error address = 0x%x\n",
(val & ADSP2_PMEM_ERR_ADDR_MASK) >>
ADSP2_PMEM_ERR_ADDR_SHIFT);
}
regmap_update_bits(regmap, dsp->base + ADSP2_LOCK_REGION_CTRL,
ADSP2_CTRL_ERR_EINT, ADSP2_CTRL_ERR_EINT);
error:
mutex_unlock(&dsp->pwr_lock);
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;
struct regmap *regmap = dsp->regmap;
unsigned int fault[6];
struct reg_sequence clear[] = {
{ dsp->base + HALO_MPU_XM_VIO_STATUS, 0x0 },
{ dsp->base + HALO_MPU_YM_VIO_STATUS, 0x0 },
{ dsp->base + HALO_MPU_PM_VIO_STATUS, 0x0 },
};
int ret;
mutex_lock(&dsp->pwr_lock);
ret = regmap_read(regmap, dsp->base_sysinfo + HALO_AHBM_WINDOW_DEBUG_1,
fault);
if (ret) {
adsp_warn(dsp, "Failed to read AHB DEBUG_1: %d\n", ret);
goto exit_unlock;
}
adsp_warn(dsp, "AHB: STATUS: 0x%x ADDR: 0x%x\n",
*fault & HALO_AHBM_FLAGS_ERR_MASK,
(*fault & HALO_AHBM_CORE_ERR_ADDR_MASK) >>
HALO_AHBM_CORE_ERR_ADDR_SHIFT);
ret = regmap_read(regmap, dsp->base_sysinfo + HALO_AHBM_WINDOW_DEBUG_0,
fault);
if (ret) {
adsp_warn(dsp, "Failed to read AHB DEBUG_0: %d\n", ret);
goto exit_unlock;
}
adsp_warn(dsp, "AHB: SYS_ADDR: 0x%x\n", *fault);
ret = regmap_bulk_read(regmap, dsp->base + HALO_MPU_XM_VIO_ADDR,
fault, ARRAY_SIZE(fault));
if (ret) {
adsp_warn(dsp, "Failed to read MPU fault info: %d\n", ret);
goto exit_unlock;
}
adsp_warn(dsp, "XM: STATUS:0x%x ADDR:0x%x\n", fault[1], fault[0]);
adsp_warn(dsp, "YM: STATUS:0x%x ADDR:0x%x\n", fault[3], fault[2]);
adsp_warn(dsp, "PM: STATUS:0x%x ADDR:0x%x\n", fault[5], fault[4]);
ret = regmap_multi_reg_write(dsp->regmap, clear, ARRAY_SIZE(clear));
if (ret)
adsp_warn(dsp, "Failed to clear MPU status: %d\n", ret);
exit_unlock:
mutex_unlock(&dsp->pwr_lock);
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;
mutex_lock(&dsp->pwr_lock);
adsp_warn(dsp, "WDT Expiry Fault\n");
dsp->ops->stop_watchdog(dsp);
wm_adsp_fatal_error(dsp);
mutex_unlock(&dsp->pwr_lock);
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
static struct wm_adsp_ops wm_adsp1_ops = {
.validate_version = wm_adsp_validate_version,
.parse_sizes = wm_adsp1_parse_sizes,
.region_to_reg = wm_adsp_region_to_reg,
};
static struct wm_adsp_ops wm_adsp2_ops[] = {
{
.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
.parse_sizes = wm_adsp2_parse_sizes,
.validate_version = wm_adsp_validate_version,
.setup_algs = wm_adsp2_setup_algs,
.region_to_reg = wm_adsp_region_to_reg,
.show_fw_status = wm_adsp2_show_fw_status,
.enable_memory = wm_adsp2_enable_memory,
.disable_memory = wm_adsp2_disable_memory,
.enable_core = wm_adsp2_enable_core,
.disable_core = wm_adsp2_disable_core,
.start_core = wm_adsp2_start_core,
.stop_core = wm_adsp2_stop_core,
},
{
.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
.parse_sizes = wm_adsp2_parse_sizes,
.validate_version = wm_adsp_validate_version,
.setup_algs = wm_adsp2_setup_algs,
.region_to_reg = wm_adsp_region_to_reg,
.show_fw_status = wm_adsp2v2_show_fw_status,
.enable_memory = wm_adsp2_enable_memory,
.disable_memory = wm_adsp2_disable_memory,
.lock_memory = wm_adsp2_lock,
.enable_core = wm_adsp2v2_enable_core,
.disable_core = wm_adsp2v2_disable_core,
.start_core = wm_adsp2_start_core,
.stop_core = wm_adsp2_stop_core,
},
{
.sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr),
.parse_sizes = wm_adsp2_parse_sizes,
.validate_version = wm_adsp_validate_version,
.setup_algs = wm_adsp2_setup_algs,
.region_to_reg = wm_adsp_region_to_reg,
.show_fw_status = wm_adsp2v2_show_fw_status,
.stop_watchdog = wm_adsp_stop_watchdog,
.enable_memory = wm_adsp2_enable_memory,
.disable_memory = wm_adsp2_disable_memory,
.lock_memory = wm_adsp2_lock,
.enable_core = wm_adsp2v2_enable_core,
.disable_core = wm_adsp2v2_disable_core,
.start_core = wm_adsp2_start_core,
.stop_core = wm_adsp2_stop_core,
},
};
static struct wm_adsp_ops wm_halo_ops = {
.sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr),
.parse_sizes = wm_adsp2_parse_sizes,
.validate_version = wm_halo_validate_version,
.setup_algs = wm_halo_setup_algs,
.region_to_reg = wm_halo_region_to_reg,
.show_fw_status = wm_halo_show_fw_status,
.stop_watchdog = wm_halo_stop_watchdog,
.lock_memory = wm_halo_configure_mpu,
.start_core = wm_halo_start_core,
.stop_core = wm_halo_stop_core,
};
MODULE_LICENSE("GPL v2");
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