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Unverified Commit a792af69 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: wm_adsp: Refactor compress stream initialisation 



Make the code slightly clearer and prepare things for the addition of
multiple compressed streams on a single DSP core.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1e38f069

sound/soc/codecs/wm_adsp.c

+74 −65
Original line number Diff line number Diff line
@@ -3253,6 +3253,11 @@ static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 
	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];
@@ -3287,13 +3292,34 @@ static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 
	buf->avail = 0;

}



static int wm_adsp_legacy_host_buf_addr(struct wm_adsp_compr_buf *buf)

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);



	dsp->buffer = buf;



	return buf;

}



static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)

{

	struct wm_adsp_alg_region *alg_region;

	struct wm_adsp *dsp = buf->dsp;

	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 = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
@@ -3303,7 +3329,7 @@ static int wm_adsp_legacy_host_buf_addr(struct wm_adsp_compr_buf *buf) 
		return ret;



	if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)

		return -EINVAL;

		return -ENODEV;



	addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);

	for (i = 0; i < 5; ++i) {
@@ -3323,49 +3349,27 @@ static int wm_adsp_legacy_host_buf_addr(struct wm_adsp_compr_buf *buf) 


	buf->host_buf_mem_type = WMFW_ADSP2_XM;



	adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);



	return 0;

}



static struct wm_coeff_ctl *

wm_adsp_find_host_buffer_ctrl(struct wm_adsp_compr_buf *buf)

{

	struct wm_adsp *dsp = buf->dsp;

	struct wm_coeff_ctl *ctl;



	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_populate(buf);

	if (ret < 0)

		return ret;



		buf->host_buf_mem_type = ctl->alg_region.type;

		return ctl;

	}

	adsp_dbg(dsp, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);



	return NULL;

	return 0;

}



static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)

static int wm_adsp_buffer_parse_coeff(struct wm_coeff_ctl *ctl)

{

	struct wm_adsp *dsp = buf->dsp;

	struct wm_coeff_ctl *ctl;

	unsigned int reg;

	u32 val;

	int i, ret;



	ctl = wm_adsp_find_host_buffer_ctrl(buf);

	if (!ctl)

		return wm_adsp_legacy_host_buf_addr(buf);

	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(dsp->regmap, reg, &val, sizeof(val));

		ret = regmap_raw_read(ctl->dsp->regmap, reg, &val, sizeof(val));

		if (ret < 0)

			return ret;
@@ -3375,56 +3379,61 @@ static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf) 
		usleep_range(1000, 2000);

	}



	if (!val)

	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);

	adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);



	ret = wm_adsp_buffer_populate(buf);

	if (ret < 0)

		return ret;



	adsp_dbg(ctl->dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);



	return 0;

}





static int wm_adsp_buffer_init(struct wm_adsp *dsp)

{

	struct wm_adsp_compr_buf *buf;

	struct wm_coeff_ctl *ctl;

	int ret;



	buf = kzalloc(sizeof(*buf), GFP_KERNEL);

	if (!buf)

		return -ENOMEM;



	buf->dsp = dsp;

	list_for_each_entry(ctl, &dsp->ctl_list, list) {

		if (ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)

			continue;



	wm_adsp_buffer_clear(buf);

		if (!ctl->enabled)

			continue;



	ret = wm_adsp_buffer_locate(buf);

		ret = wm_adsp_buffer_parse_coeff(ctl);

		if (ret < 0) {

		adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);

		goto err_buffer;

			adsp_err(dsp, "Failed to parse coeff: %d\n", ret);

			goto error;

		}



	buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,

			       sizeof(*buf->regions), GFP_KERNEL);

	if (!buf->regions) {

		ret = -ENOMEM;

		goto err_buffer;

		return 0;

	}



	ret = wm_adsp_buffer_populate(buf);

	if (ret < 0) {

		adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);

		goto err_regions;

	if (!dsp->buffer) {

		/* 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;

		}

	}



	dsp->buffer = buf;



	return 0;



err_regions:

	kfree(buf->regions);

err_buffer:

	kfree(buf);

error:

	wm_adsp_buffer_free(dsp);

	return ret;

}