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authorStuart Henderson <stuarth@opensource.cirrus.com>2019-02-22 10:04:20 +0000
committerMark Brown <broonie@kernel.org>2019-02-22 15:13:57 +0000
commit4f2d4eabf57718875b97363a3bd35de490f354c5 (patch)
tree22a2d161ce0ac6f8cf698c573bba8800bc326381 /sound/soc
parenta792af69b08fd7f89b156c8cba1dfc2088522582 (diff)
downloadlinux-stericsson-4f2d4eabf57718875b97363a3bd35de490f354c5.tar.gz
ASoC: wm_adsp: Add support for multiple compressed buffers
Currently, only a single compressed stream is supported per firmware. Add support for multiple compressed streams on a single firmware, this allows additional features like completely independent trigger words or separate debug capture streams to be implemented. Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/codecs/wm_adsp.c166
-rw-r--r--sound/soc/codecs/wm_adsp.h4
2 files changed, 119 insertions, 51 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 4fdcef3f0ecc..fe802fc331c5 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -310,6 +310,12 @@ struct wm_adsp_alg_xm_struct {
__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 */
@@ -334,6 +340,7 @@ struct wm_adsp_buffer {
struct wm_adsp_compr;
struct wm_adsp_compr_buf {
+ struct list_head list;
struct wm_adsp *dsp;
struct wm_adsp_compr *compr;
@@ -345,9 +352,12 @@ struct wm_adsp_compr_buf {
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;
@@ -358,6 +368,8 @@ struct wm_adsp_compr {
unsigned int copied_total;
unsigned int sample_rate;
+
+ const char *name;
};
#define WM_ADSP_DATA_WORD_SIZE 3
@@ -375,6 +387,11 @@ struct wm_adsp_compr {
#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);
@@ -708,7 +725,7 @@ int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
mutex_lock(&dsp[e->shift_l].pwr_lock);
- if (dsp[e->shift_l].booted || dsp[e->shift_l].compr)
+ 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];
@@ -2430,6 +2447,8 @@ static int wm_adsp_common_init(struct wm_adsp *dsp)
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);
@@ -2972,14 +2991,19 @@ static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
{
- /*
- * Note this will be more complex once each DSP can support multiple
- * streams
- */
- if (!compr->dsp->buffer)
+ struct wm_adsp_compr_buf *buf = NULL, *tmp;
+
+ 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 = compr->dsp->buffer;
+ compr->buf = buf;
compr->buf->compr = compr;
return 0;
@@ -3002,7 +3026,8 @@ static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
{
- struct wm_adsp_compr *compr;
+ struct wm_adsp_compr *compr, *tmp;
+ struct snd_soc_pcm_runtime *rtd = stream->private_data;
int ret = 0;
mutex_lock(&dsp->pwr_lock);
@@ -3019,11 +3044,12 @@ int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
goto out;
}
- if (dsp->compr) {
- /* It is expect this limitation will be removed in future */
- adsp_err(dsp, "Only a single stream supported per DSP\n");
- ret = -EBUSY;
- goto out;
+ list_for_each_entry(tmp, &dsp->compr_list, list) {
+ if (!strcmp(tmp->name, rtd->codec_dai->name)) {
+ adsp_err(dsp, "Only a single stream supported per dai\n");
+ ret = -EBUSY;
+ goto out;
+ }
}
compr = kzalloc(sizeof(*compr), GFP_KERNEL);
@@ -3034,8 +3060,9 @@ int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
compr->dsp = dsp;
compr->stream = stream;
+ compr->name = rtd->codec_dai->name;
- dsp->compr = compr;
+ list_add_tail(&compr->list, &dsp->compr_list);
stream->runtime->private_data = compr;
@@ -3054,7 +3081,7 @@ int wm_adsp_compr_free(struct snd_compr_stream *stream)
mutex_lock(&dsp->pwr_lock);
wm_adsp_compr_detach(compr);
- dsp->compr = NULL;
+ list_del(&compr->list);
kfree(compr->raw_buf);
kfree(compr);
@@ -3304,7 +3331,7 @@ static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
wm_adsp_buffer_clear(buf);
- dsp->buffer = buf;
+ list_add_tail(&buf->list, &dsp->buffer_list);
return buf;
}
@@ -3360,6 +3387,7 @@ static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
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;
@@ -3395,9 +3423,45 @@ static int wm_adsp_buffer_parse_coeff(struct wm_coeff_ctl *ctl)
if (ret < 0)
return ret;
- adsp_dbg(ctl->dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
+ /*
+ * v0 host_buffer coefficients didn't have versioning, so if the
+ * control is one word, assume version 0.
+ */
+ if (ctl->len == 4) {
+ adsp_dbg(ctl->dsp, "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;
- return 0;
+ 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);
+
+ adsp_dbg(ctl->dsp, "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)
@@ -3416,12 +3480,13 @@ static int wm_adsp_buffer_init(struct wm_adsp *dsp)
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;
}
-
- return 0;
}
- if (!dsp->buffer) {
+ if (list_empty(&dsp->buffer_list)) {
/* Fall back to legacy support */
ret = wm_adsp_buffer_parse_legacy(dsp);
if (ret) {
@@ -3439,13 +3504,16 @@ error:
static int wm_adsp_buffer_free(struct wm_adsp *dsp)
{
- if (dsp->buffer) {
- wm_adsp_compr_detach(dsp->buffer->compr);
+ struct wm_adsp_compr_buf *buf, *tmp;
- kfree(dsp->buffer->regions);
- kfree(dsp->buffer);
+ list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
+ if (buf->compr)
+ wm_adsp_compr_detach(buf->compr);
- dsp->buffer = NULL;
+ kfree(buf->name);
+ kfree(buf->regions);
+ list_del(&buf->list);
+ kfree(buf);
}
return 0;
@@ -3572,39 +3640,39 @@ int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
mutex_lock(&dsp->pwr_lock);
- buf = dsp->buffer;
- compr = dsp->compr;
-
- if (!buf) {
+ if (list_empty(&dsp->buffer_list)) {
ret = -ENODEV;
goto out;
}
-
adsp_dbg(dsp, "Handling buffer IRQ\n");
- ret = wm_adsp_buffer_get_error(buf);
- if (ret < 0)
- goto out_notify; /* Wake poll to report error */
+ list_for_each_entry(buf, &dsp->buffer_list, list) {
+ compr = buf->compr;
- ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
- &buf->irq_count);
- if (ret < 0) {
- adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
- goto out;
- }
+ ret = wm_adsp_buffer_get_error(buf);
+ if (ret < 0)
+ goto out_notify; /* Wake poll to report error */
- ret = wm_adsp_buffer_update_avail(buf);
- if (ret < 0) {
- adsp_err(dsp, "Error reading avail: %d\n", ret);
- goto out;
- }
+ ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
+ &buf->irq_count);
+ if (ret < 0) {
+ adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
+ goto out;
+ }
- if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
- ret = WM_ADSP_COMPR_VOICE_TRIGGER;
+ ret = wm_adsp_buffer_update_avail(buf);
+ if (ret < 0) {
+ adsp_err(dsp, "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);
+ if (compr && compr->stream)
+ snd_compr_fragment_elapsed(compr->stream);
+ }
out:
mutex_unlock(&dsp->pwr_lock);
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index 4b8778b0b06c..59e07ad16329 100644
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -90,8 +90,8 @@ struct wm_adsp {
struct work_struct boot_work;
- struct wm_adsp_compr *compr;
- struct wm_adsp_compr_buf *buffer;
+ struct list_head compr_list;
+ struct list_head buffer_list;
struct mutex pwr_lock;