The patch
ASoC: wm_adsp: Add support for multiple compressed buffers
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 4f2d4eabf57718875b97363a3bd35de490f354c5 Mon Sep 17 00:00:00 2001
From: Stuart Henderson stuarth@opensource.cirrus.com Date: Fri, 22 Feb 2019 10:04:20 +0000 Subject: [PATCH] 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 --- sound/soc/codecs/wm_adsp.c | 166 ++++++++++++++++++++++++++----------- sound/soc/codecs/wm_adsp.h | 4 +- 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 @@ static int wm_adsp_buffer_init(struct wm_adsp *dsp)
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;