wm_adsp.c 28.9 KB
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/*
 * wm_adsp.c  --  Wolfson ADSP support
 *
 * Copyright 2012 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.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 <linux/mfd/arizona/registers.h>

#include "wm_adsp.h"

#define adsp_crit(_dsp, fmt, ...) \
	dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_err(_dsp, fmt, ...) \
	dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_warn(_dsp, fmt, ...) \
	dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_info(_dsp, fmt, ...) \
	dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
#define adsp_dbg(_dsp, fmt, ...) \
	dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)

#define ADSP1_CONTROL_1                   0x00
#define ADSP1_CONTROL_2                   0x02
#define ADSP1_CONTROL_3                   0x03
#define ADSP1_CONTROL_4                   0x04
#define ADSP1_CONTROL_5                   0x06
#define ADSP1_CONTROL_6                   0x07
#define ADSP1_CONTROL_7                   0x08
#define ADSP1_CONTROL_8                   0x09
#define ADSP1_CONTROL_9                   0x0A
#define ADSP1_CONTROL_10                  0x0B
#define ADSP1_CONTROL_11                  0x0C
#define ADSP1_CONTROL_12                  0x0D
#define ADSP1_CONTROL_13                  0x0F
#define ADSP1_CONTROL_14                  0x10
#define ADSP1_CONTROL_15                  0x11
#define ADSP1_CONTROL_16                  0x12
#define ADSP1_CONTROL_17                  0x13
#define ADSP1_CONTROL_18                  0x14
#define ADSP1_CONTROL_19                  0x16
#define ADSP1_CONTROL_20                  0x17
#define ADSP1_CONTROL_21                  0x18
#define ADSP1_CONTROL_22                  0x1A
#define ADSP1_CONTROL_23                  0x1B
#define ADSP1_CONTROL_24                  0x1C
#define ADSP1_CONTROL_25                  0x1E
#define ADSP1_CONTROL_26                  0x20
#define ADSP1_CONTROL_27                  0x21
#define ADSP1_CONTROL_28                  0x22
#define ADSP1_CONTROL_29                  0x23
#define ADSP1_CONTROL_30                  0x24
#define ADSP1_CONTROL_31                  0x26

/*
 * ADSP1 Control 19
 */
#define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
#define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */


/*
 * ADSP1 Control 30
 */
#define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
#define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
#define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
#define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
#define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
#define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
#define ADSP1_START                       0x0001  /* DSP1_START */
#define ADSP1_START_MASK                  0x0001  /* DSP1_START */
#define ADSP1_START_SHIFT                      0  /* DSP1_START */
#define ADSP1_START_WIDTH                      1  /* DSP1_START */

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/*
 * 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 */

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#define ADSP2_CONTROL  0
#define ADSP2_CLOCKING 1
#define ADSP2_STATUS1  4
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/*
 * 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 */

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/*
 * 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 */

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/*
 * 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

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#define WM_ADSP_NUM_FW 3

static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
	"MBC/VSS", "Tx", "Rx ANC"
};

static struct {
	const char *file;
} wm_adsp_fw[WM_ADSP_NUM_FW] = {
	{ .file = "mbc-vss" },
	{ .file = "tx" },
	{ .file = "rx-anc" },
};

static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = adsp[e->shift_l].fw;

	return 0;
}

static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);

	if (ucontrol->value.integer.value[0] == adsp[e->shift_l].fw)
		return 0;

	if (ucontrol->value.integer.value[0] >= WM_ADSP_NUM_FW)
		return -EINVAL;

	if (adsp[e->shift_l].running)
		return -EBUSY;

	adsp->fw = ucontrol->value.integer.value[0];

	return 0;
}

static const struct soc_enum wm_adsp_fw_enum[] = {
	SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
	SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
	SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
	SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
};

const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
	SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
		     wm_adsp_fw_get, wm_adsp_fw_put),
	SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
		     wm_adsp_fw_get, wm_adsp_fw_put),
	SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
		     wm_adsp_fw_get, wm_adsp_fw_put),
	SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
		     wm_adsp_fw_get, wm_adsp_fw_put),
};
EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
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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;
}

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static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *region,
					  unsigned int offset)
{
	switch (region->type) {
	case WMFW_ADSP1_PM:
		return region->base + (offset * 3);
	case WMFW_ADSP1_DM:
		return region->base + (offset * 2);
	case WMFW_ADSP2_XM:
		return region->base + (offset * 2);
	case WMFW_ADSP2_YM:
		return region->base + (offset * 2);
	case WMFW_ADSP1_ZM:
		return region->base + (offset * 2);
	default:
		WARN_ON(NULL != "Unknown memory region type");
		return offset;
	}
}

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static int wm_adsp_load(struct wm_adsp *dsp)
{
	const struct firmware *firmware;
	struct regmap *regmap = dsp->regmap;
	unsigned int pos = 0;
	const struct wmfw_header *header;
	const struct wmfw_adsp1_sizes *adsp1_sizes;
	const struct wmfw_adsp2_sizes *adsp2_sizes;
	const struct wmfw_footer *footer;
	const struct wmfw_region *region;
	const struct wm_adsp_region *mem;
	const char *region_name;
	char *file, *text;
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	void *buf;
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	unsigned int reg;
	int regions = 0;
	int ret, offset, type, sizes;

	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
	if (file == NULL)
		return -ENOMEM;

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	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
		 wm_adsp_fw[dsp->fw].file);
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	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 (header->ver != 0) {
		adsp_err(dsp, "%s: unknown file format %d\n",
			 file, header->ver);
		goto out_fw;
	}

	if (header->core != dsp->type) {
		adsp_err(dsp, "%s: invalid core %d != %d\n",
			 file, header->core, dsp->type);
		goto out_fw;
	}

	switch (dsp->type) {
	case WMFW_ADSP1:
		pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
		adsp1_sizes = (void *)&(header[1]);
		footer = (void *)&(adsp1_sizes[1]);
		sizes = sizeof(*adsp1_sizes);

		adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
			 file, le32_to_cpu(adsp1_sizes->dm),
			 le32_to_cpu(adsp1_sizes->pm),
			 le32_to_cpu(adsp1_sizes->zm));
		break;

	case WMFW_ADSP2:
		pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
		adsp2_sizes = (void *)&(header[1]);
		footer = (void *)&(adsp2_sizes[1]);
		sizes = sizeof(*adsp2_sizes);

		adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
			 file, le32_to_cpu(adsp2_sizes->xm),
			 le32_to_cpu(adsp2_sizes->ym),
			 le32_to_cpu(adsp2_sizes->pm),
			 le32_to_cpu(adsp2_sizes->zm));
		break;

	default:
		BUG_ON(NULL == "Unknown DSP type");
		goto out_fw;
	}

	if (le32_to_cpu(header->len) != sizeof(*header) +
	    sizes + sizeof(*footer)) {
		adsp_err(dsp, "%s: unexpected header length %d\n",
			 file, le32_to_cpu(header->len));
		goto out_fw;
	}

	adsp_dbg(dsp, "%s: timestamp %llu\n", file,
		 le64_to_cpu(footer->timestamp));

	while (pos < firmware->size &&
	       pos - firmware->size > sizeof(*region)) {
		region = (void *)&(firmware->data[pos]);
		region_name = "Unknown";
		reg = 0;
		text = NULL;
		offset = le32_to_cpu(region->offset) & 0xffffff;
		type = be32_to_cpu(region->type) & 0xff;
		mem = wm_adsp_find_region(dsp, type);
		
		switch (type) {
		case WMFW_NAME_TEXT:
			region_name = "Firmware name";
			text = kzalloc(le32_to_cpu(region->len) + 1,
				       GFP_KERNEL);
			break;
		case WMFW_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:
			BUG_ON(!mem);
			region_name = "PM";
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			reg = wm_adsp_region_to_reg(mem, offset);
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			break;
		case WMFW_ADSP1_DM:
			BUG_ON(!mem);
			region_name = "DM";
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			reg = wm_adsp_region_to_reg(mem, offset);
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			break;
		case WMFW_ADSP2_XM:
			BUG_ON(!mem);
			region_name = "XM";
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			reg = wm_adsp_region_to_reg(mem, offset);
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			break;
		case WMFW_ADSP2_YM:
			BUG_ON(!mem);
			region_name = "YM";
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			reg = wm_adsp_region_to_reg(mem, offset);
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			break;
		case WMFW_ADSP1_ZM:
			BUG_ON(!mem);
			region_name = "ZM";
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			reg = wm_adsp_region_to_reg(mem, offset);
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			break;
		default:
			adsp_warn(dsp,
				  "%s.%d: Unknown region type %x at %d(%x)\n",
				  file, regions, type, pos, pos);
			break;
		}

		adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
			 regions, le32_to_cpu(region->len), offset,
			 region_name);

		if (text) {
			memcpy(text, region->data, le32_to_cpu(region->len));
			adsp_info(dsp, "%s: %s\n", file, text);
			kfree(text);
		}

		if (reg) {
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			buf = kmemdup(region->data, le32_to_cpu(region->len),
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				      GFP_KERNEL | GFP_DMA);
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			if (!buf) {
				adsp_err(dsp, "Out of memory\n");
				return -ENOMEM;
			}

			ret = regmap_raw_write(regmap, reg, buf,
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					       le32_to_cpu(region->len));
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			kfree(buf);

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			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++;
	}
	
	if (pos > firmware->size)
		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
			  file, regions, pos - firmware->size);

out_fw:
	release_firmware(firmware);
out:
	kfree(file);

	return ret;
}

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static int wm_adsp_setup_algs(struct wm_adsp *dsp)
{
	struct regmap *regmap = dsp->regmap;
	struct wmfw_adsp1_id_hdr adsp1_id;
	struct wmfw_adsp2_id_hdr adsp2_id;
	struct wmfw_adsp1_alg_hdr *adsp1_alg;
	struct wmfw_adsp2_alg_hdr *adsp2_alg;
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	void *alg, *buf;
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	struct wm_adsp_alg_region *region;
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	const struct wm_adsp_region *mem;
	unsigned int pos, term;
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	size_t algs, buf_size;
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	__be32 val;
	int i, ret;

	switch (dsp->type) {
	case WMFW_ADSP1:
		mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
		break;
	case WMFW_ADSP2:
		mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
		break;
	default:
		mem = NULL;
		break;
	}

	if (mem == NULL) {
		BUG_ON(mem != NULL);
		return -EINVAL;
	}

	switch (dsp->type) {
	case WMFW_ADSP1:
		ret = regmap_raw_read(regmap, mem->base, &adsp1_id,
				      sizeof(adsp1_id));
		if (ret != 0) {
			adsp_err(dsp, "Failed to read algorithm info: %d\n",
				 ret);
			return ret;
		}

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		buf = &adsp1_id;
		buf_size = sizeof(adsp1_id);

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		algs = be32_to_cpu(adsp1_id.algs);
		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
			  be32_to_cpu(adsp1_id.fw.id),
			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
			  be32_to_cpu(adsp1_id.fw.ver) & 0xff,
			  algs);

		pos = sizeof(adsp1_id) / 2;
		term = pos + ((sizeof(*adsp1_alg) * algs) / 2);
		break;

	case WMFW_ADSP2:
		ret = regmap_raw_read(regmap, mem->base, &adsp2_id,
				      sizeof(adsp2_id));
		if (ret != 0) {
			adsp_err(dsp, "Failed to read algorithm info: %d\n",
				 ret);
			return ret;
		}

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		buf = &adsp2_id;
		buf_size = sizeof(adsp2_id);

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		algs = be32_to_cpu(adsp2_id.algs);
		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
			  be32_to_cpu(adsp2_id.fw.id),
			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff0000) >> 16,
			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff00) >> 8,
			  be32_to_cpu(adsp2_id.fw.ver) & 0xff,
			  algs);

		pos = sizeof(adsp2_id) / 2;
		term = pos + ((sizeof(*adsp2_alg) * algs) / 2);
		break;

	default:
		BUG_ON(NULL == "Unknown DSP type");
		return -EINVAL;
	}

	if (algs == 0) {
		adsp_err(dsp, "No algorithms\n");
		return -EINVAL;
	}

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	if (algs > 1024) {
		adsp_err(dsp, "Algorithm count %zx excessive\n", algs);
		print_hex_dump_bytes(dev_name(dsp->dev), DUMP_PREFIX_OFFSET,
				     buf, buf_size);
		return -EINVAL;
	}

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	/* Read the terminator first to validate the length */
	ret = regmap_raw_read(regmap, mem->base + term, &val, sizeof(val));
	if (ret != 0) {
		adsp_err(dsp, "Failed to read algorithm list end: %d\n",
			ret);
		return ret;
	}

	if (be32_to_cpu(val) != 0xbedead)
		adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
			  term, be32_to_cpu(val));

567
	alg = kzalloc((term - pos) * 2, GFP_KERNEL | GFP_DMA);
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
	if (!alg)
		return -ENOMEM;

	ret = regmap_raw_read(regmap, mem->base + pos, alg, (term - pos) * 2);
	if (ret != 0) {
		adsp_err(dsp, "Failed to read algorithm list: %d\n",
			ret);
		goto out;
	}

	adsp1_alg = alg;
	adsp2_alg = alg;

	for (i = 0; i < algs; i++) {
		switch (dsp->type) {
		case WMFW_ADSP1:
584
			adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
585 586 587
				  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,
588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612
				  be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
				  be32_to_cpu(adsp1_alg[i].dm),
				  be32_to_cpu(adsp1_alg[i].zm));

			if (adsp1_alg[i].dm) {
				region = kzalloc(sizeof(*region), GFP_KERNEL);
				if (!region)
					return -ENOMEM;
				region->type = WMFW_ADSP1_DM;
				region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
				region->base = be32_to_cpu(adsp1_alg[i].dm);
				list_add_tail(&region->list,
					      &dsp->alg_regions);
			}

			if (adsp1_alg[i].zm) {
				region = kzalloc(sizeof(*region), GFP_KERNEL);
				if (!region)
					return -ENOMEM;
				region->type = WMFW_ADSP1_ZM;
				region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
				region->base = be32_to_cpu(adsp1_alg[i].zm);
				list_add_tail(&region->list,
					      &dsp->alg_regions);
			}
613 614 615
			break;

		case WMFW_ADSP2:
616 617
			adsp_info(dsp,
				  "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
618 619 620
				  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,
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657
				  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));

			if (adsp2_alg[i].xm) {
				region = kzalloc(sizeof(*region), GFP_KERNEL);
				if (!region)
					return -ENOMEM;
				region->type = WMFW_ADSP2_XM;
				region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
				region->base = be32_to_cpu(adsp2_alg[i].xm);
				list_add_tail(&region->list,
					      &dsp->alg_regions);
			}

			if (adsp2_alg[i].ym) {
				region = kzalloc(sizeof(*region), GFP_KERNEL);
				if (!region)
					return -ENOMEM;
				region->type = WMFW_ADSP2_YM;
				region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
				region->base = be32_to_cpu(adsp2_alg[i].ym);
				list_add_tail(&region->list,
					      &dsp->alg_regions);
			}

			if (adsp2_alg[i].zm) {
				region = kzalloc(sizeof(*region), GFP_KERNEL);
				if (!region)
					return -ENOMEM;
				region->type = WMFW_ADSP2_ZM;
				region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
				region->base = be32_to_cpu(adsp2_alg[i].zm);
				list_add_tail(&region->list,
					      &dsp->alg_regions);
			}
658 659 660 661 662 663 664 665 666
			break;
		}
	}

out:
	kfree(alg);
	return ret;
}

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static int wm_adsp_load_coeff(struct wm_adsp *dsp)
{
	struct regmap *regmap = dsp->regmap;
	struct wmfw_coeff_hdr *hdr;
	struct wmfw_coeff_item *blk;
	const struct firmware *firmware;
673 674
	const struct wm_adsp_region *mem;
	struct wm_adsp_alg_region *alg_region;
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	const char *region_name;
	int ret, pos, blocks, type, offset, reg;
	char *file;
678
	void *buf;
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	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
	if (file == NULL)
		return -ENOMEM;

684 685
	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
		 wm_adsp_fw[dsp->fw].file);
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	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);
		return -EINVAL;
	}

708 709 710 711 712 713 714 715 716 717
	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;
	}

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	adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
		(le32_to_cpu(hdr->ver) >> 16) & 0xff,
		(le32_to_cpu(hdr->ver) >>  8) & 0xff,
		le32_to_cpu(hdr->ver) & 0xff);

	pos = le32_to_cpu(hdr->len);

	blocks = 0;
	while (pos < firmware->size &&
	       pos - firmware->size > sizeof(*blk)) {
		blk = (void*)(&firmware->data[pos]);

730 731
		type = le16_to_cpu(blk->type);
		offset = le16_to_cpu(blk->offset);
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		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) {
744 745
		case (WMFW_NAME_TEXT << 8):
		case (WMFW_INFO_TEXT << 8):
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			break;
747
		case (WMFW_ABSOLUTE << 8):
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			region_name = "register";
			reg = offset;
			break;
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		case WMFW_ADSP1_DM:
		case WMFW_ADSP1_ZM:
		case WMFW_ADSP2_XM:
		case WMFW_ADSP2_YM:
			adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
				 file, blocks, le32_to_cpu(blk->len),
				 type, le32_to_cpu(blk->id));

			mem = wm_adsp_find_region(dsp, type);
			if (!mem) {
				adsp_err(dsp, "No base for region %x\n", type);
				break;
			}

			reg = 0;
			list_for_each_entry(alg_region,
					    &dsp->alg_regions, list) {
				if (le32_to_cpu(blk->id) == alg_region->alg &&
				    type == alg_region->type) {
					reg = alg_region->base + offset;
					reg = wm_adsp_region_to_reg(mem,
								    reg);
				}
			}

			if (reg == 0)
				adsp_err(dsp, "No %x for algorithm %x\n",
					 type, le32_to_cpu(blk->id));
			break;

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		default:
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			adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
				 file, blocks, type, pos);
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			break;
		}

		if (reg) {
789
			buf = kmemdup(blk->data, le32_to_cpu(blk->len),
790
				      GFP_KERNEL | GFP_DMA);
791 792 793 794 795
			if (!buf) {
				adsp_err(dsp, "Out of memory\n");
				return -ENOMEM;
			}

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			ret = regmap_raw_write(regmap, reg, blk->data,
					       le32_to_cpu(blk->len));
			if (ret != 0) {
				adsp_err(dsp,
					"%s.%d: Failed to write to %x in %s\n",
					file, blocks, reg, region_name);
			}
803 804

			kfree(buf);
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		}

		pos += le32_to_cpu(blk->len) + sizeof(*blk);
		blocks++;
	}

	if (pos > firmware->size)
		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
			  file, blocks, pos - firmware->size);

out_fw:
	release_firmware(firmware);
out:
	kfree(file);
	return 0;
}

822 823 824 825 826 827 828 829
int wm_adsp1_init(struct wm_adsp *adsp)
{
	INIT_LIST_HEAD(&adsp->alg_regions);

	return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp1_init);

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int wm_adsp1_event(struct snd_soc_dapm_widget *w,
		   struct snd_kcontrol *kcontrol,
		   int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
	struct wm_adsp *dsp = &dsps[w->shift];
	int ret;
838
	int val;
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	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
				   ADSP1_SYS_ENA, ADSP1_SYS_ENA);

845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869
		/*
		 * 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);
				return ret;
			}

			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);
				return ret;
			}
		}

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		ret = wm_adsp_load(dsp);
		if (ret != 0)
			goto err;

874 875 876 877
		ret = wm_adsp_setup_algs(dsp);
		if (ret != 0)
			goto err;

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		ret = wm_adsp_load_coeff(dsp);
		if (ret != 0)
			goto err;

		/* Start the core running */
		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
				   ADSP1_CORE_ENA | ADSP1_START,
				   ADSP1_CORE_ENA | ADSP1_START);
		break;

	case SND_SOC_DAPM_PRE_PMD:
		/* Halt the core */
		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
				   ADSP1_CORE_ENA | ADSP1_START, 0);

		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
				   ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);

		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
				   ADSP1_SYS_ENA, 0);
		break;

	default:
		break;
	}

	return 0;

err:
	regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
			   ADSP1_SYS_ENA, 0);
	return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp1_event);

static int wm_adsp2_ena(struct wm_adsp *dsp)
{
	unsigned int val;
	int ret, count;

	ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
				 ADSP2_SYS_ENA, ADSP2_SYS_ENA);
	if (ret != 0)
		return ret;

	/* Wait for the RAM to start, should be near instantaneous */
	count = 0;
	do {
		ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1,
				  &val);
		if (ret != 0)
			return ret;
	} while (!(val & ADSP2_RAM_RDY) && ++count < 10);

	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);
	adsp_info(dsp, "RAM ready after %d polls\n", count);

	return 0;
}

int wm_adsp2_event(struct snd_soc_dapm_widget *w,
		   struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
	struct wm_adsp *dsp = &dsps[w->shift];
949
	struct wm_adsp_alg_region *alg_region;
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	unsigned int val;
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	int ret;

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
		/*
		 * For simplicity set the DSP clock rate to be the
		 * SYSCLK rate rather than making it configurable.
		 */
		ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
		if (ret != 0) {
			adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
				 ret);
			return ret;
		}
		val = (val & ARIZONA_SYSCLK_FREQ_MASK)
			>> ARIZONA_SYSCLK_FREQ_SHIFT;

		ret = regmap_update_bits(dsp->regmap,
					 dsp->base + ADSP2_CLOCKING,
					 ADSP2_CLK_SEL_MASK, val);
		if (ret != 0) {
			adsp_err(dsp, "Failed to set clock rate: %d\n",
				 ret);
			return ret;
		}

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		if (dsp->dvfs) {
			ret = regmap_read(dsp->regmap,
					  dsp->base + ADSP2_CLOCKING, &val);
			if (ret != 0) {
				dev_err(dsp->dev,
					"Failed to read clocking: %d\n", ret);
				return ret;
			}

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			if ((val & ADSP2_CLK_SEL_MASK) >= 3) {
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				ret = regulator_enable(dsp->dvfs);
				if (ret != 0) {
					dev_err(dsp->dev,
						"Failed to enable supply: %d\n",
						ret);
					return ret;
				}

				ret = regulator_set_voltage(dsp->dvfs,
							    1800000,
							    1800000);
				if (ret != 0) {
					dev_err(dsp->dev,
						"Failed to raise supply: %d\n",
						ret);
					return ret;
				}
			}
		}

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		ret = wm_adsp2_ena(dsp);
		if (ret != 0)
			return ret;

		ret = wm_adsp_load(dsp);
		if (ret != 0)
			goto err;

1015 1016 1017 1018
		ret = wm_adsp_setup_algs(dsp);
		if (ret != 0)
			goto err;

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		ret = wm_adsp_load_coeff(dsp);
		if (ret != 0)
			goto err;

		ret = regmap_update_bits(dsp->regmap,
					 dsp->base + ADSP2_CONTROL,
1025 1026
					 ADSP2_CORE_ENA | ADSP2_START,
					 ADSP2_CORE_ENA | ADSP2_START);
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		if (ret != 0)
			goto err;
1029 1030

		dsp->running = true;
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		break;

	case SND_SOC_DAPM_PRE_PMD:
1034 1035
		dsp->running = false;

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		regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1037 1038
				   ADSP2_SYS_ENA | ADSP2_CORE_ENA |
				   ADSP2_START, 0);
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		if (dsp->dvfs) {
			ret = regulator_set_voltage(dsp->dvfs, 1200000,
						    1800000);
			if (ret != 0)
				dev_warn(dsp->dev,
					 "Failed to lower supply: %d\n",
					 ret);

			ret = regulator_disable(dsp->dvfs);
			if (ret != 0)
				dev_err(dsp->dev,
					"Failed to enable supply: %d\n",
					ret);
		}
1054 1055 1056 1057 1058 1059 1060 1061

		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);
		}
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		break;

	default:
		break;
	}

	return 0;
err:
	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1071
			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
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	return ret;
}
EXPORT_SYMBOL_GPL(wm_adsp2_event);
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int wm_adsp2_init(struct wm_adsp *adsp, bool dvfs)
{
	int ret;

1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090
	/*
	 * Disable the DSP memory by default when in reset for a small
	 * power saving.
	 */
	ret = regmap_update_bits(adsp->regmap, adsp->base + ADSP2_CONTROL,
				 ADSP2_MEM_ENA, 0);
	if (ret != 0) {
		adsp_err(adsp, "Failed to clear memory retention: %d\n", ret);
		return ret;
	}

1091 1092
	INIT_LIST_HEAD(&adsp->alg_regions);

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	if (dvfs) {
		adsp->dvfs = devm_regulator_get(adsp->dev, "DCVDD");
		if (IS_ERR(adsp->dvfs)) {
			ret = PTR_ERR(adsp->dvfs);
			dev_err(adsp->dev, "Failed to get DCVDD: %d\n", ret);
			return ret;
		}

		ret = regulator_enable(adsp->dvfs);
		if (ret != 0) {
			dev_err(adsp->dev, "Failed to enable DCVDD: %d\n",
				ret);
			return ret;
		}

		ret = regulator_set_voltage(adsp->dvfs, 1200000, 1800000);
		if (ret != 0) {
			dev_err(adsp->dev, "Failed to initialise DVFS: %d\n",
				ret);
			return ret;
		}

		ret = regulator_disable(adsp->dvfs);
		if (ret != 0) {
			dev_err(adsp->dev, "Failed to disable DCVDD: %d\n",
				ret);
			return ret;
		}
	}

	return 0;
}
EXPORT_SYMBOL_GPL(wm_adsp2_init);