* | +- ssi[2]
* | ...
* |
- * | ** these control scu
+ * | ** these control src
* |
- * +- scu
+ * +- src
* |
- * +- scu[0]
- * +- scu[1]
- * +- scu[2]
+ * +- src[0]
+ * +- src[1]
+ * +- src[2]
* ...
*
*
#define RSND_RATES SNDRV_PCM_RATE_8000_96000
#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
+static struct rsnd_of_data rsnd_of_data_gen1 = {
+ .flags = RSND_GEN1,
+};
+
+static struct rsnd_of_data rsnd_of_data_gen2 = {
+ .flags = RSND_GEN2,
+};
+
+static struct of_device_id rsnd_of_match[] = {
+ { .compatible = "renesas,rcar_sound-gen1", .data = &rsnd_of_data_gen1 },
+ { .compatible = "renesas,rcar_sound-gen2", .data = &rsnd_of_data_gen2 },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsnd_of_match);
+
/*
* rsnd_platform functions
*/
(!(priv->info->func) ? 0 : \
priv->info->func(param))
+#define rsnd_is_enable_path(io, name) \
+ ((io)->info ? (io)->info->name : NULL)
+#define rsnd_info_id(priv, io, name) \
+ ((io)->info->name - priv->info->name##_info)
+
/*
* rsnd_mod functions
*/
void rsnd_mod_init(struct rsnd_priv *priv,
struct rsnd_mod *mod,
struct rsnd_mod_ops *ops,
+ enum rsnd_mod_type type,
int id)
{
mod->priv = priv;
mod->id = id;
mod->ops = ops;
- INIT_LIST_HEAD(&mod->list);
+ mod->type = type;
}
/*
* rsnd_dma functions
*/
+static void __rsnd_dma_start(struct rsnd_dma *dma);
static void rsnd_dma_continue(struct rsnd_dma *dma)
{
/* push next A or B plane */
void rsnd_dma_start(struct rsnd_dma *dma)
{
/* push both A and B plane*/
+ dma->offset = 0;
dma->submit_loop = 2;
- schedule_work(&dma->work);
+ __rsnd_dma_start(dma);
}
void rsnd_dma_stop(struct rsnd_dma *dma)
static void rsnd_dma_complete(void *data)
{
struct rsnd_dma *dma = (struct rsnd_dma *)data;
- struct rsnd_priv *priv = dma->priv;
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(rsnd_dma_to_mod(dma));
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
unsigned long flags;
rsnd_lock(priv, flags);
- dma->complete(dma);
+ /*
+ * Renesas sound Gen1 needs 1 DMAC,
+ * Gen2 needs 2 DMAC.
+ * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
+ * But, Audio-DMAC-peri-peri doesn't have interrupt,
+ * and this driver is assuming that here.
+ *
+ * If Audio-DMAC-peri-peri has interrpt,
+ * rsnd_dai_pointer_update() will be called twice,
+ * ant it will breaks io->byte_pos
+ */
+
+ rsnd_dai_pointer_update(io, io->byte_per_period);
if (dma->submit_loop)
rsnd_dma_continue(dma);
rsnd_unlock(priv, flags);
}
-static void rsnd_dma_do_work(struct work_struct *work)
+static void __rsnd_dma_start(struct rsnd_dma *dma)
{
- struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work);
- struct rsnd_priv *priv = dma->priv;
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
struct device *dev = rsnd_priv_to_dev(priv);
struct dma_async_tx_descriptor *desc;
dma_addr_t buf;
- size_t len;
+ size_t len = io->byte_per_period;
int i;
for (i = 0; i < dma->submit_loop; i++) {
- if (dma->inquiry(dma, &buf, &len) < 0)
- return;
+ buf = runtime->dma_addr +
+ rsnd_dai_pointer_offset(io, dma->offset + len);
+ dma->offset = len;
desc = dmaengine_prep_slave_single(
dma->chan, buf, len, dma->dir,
}
}
+static void rsnd_dma_do_work(struct work_struct *work)
+{
+ struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work);
+
+ __rsnd_dma_start(dma);
+}
+
int rsnd_dma_available(struct rsnd_dma *dma)
{
return !!dma->chan;
}
int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
- int is_play, int id,
- int (*inquiry)(struct rsnd_dma *dma,
- dma_addr_t *buf, int *len),
- int (*complete)(struct rsnd_dma *dma))
+ int is_play, int id)
{
struct device *dev = rsnd_priv_to_dev(priv);
struct dma_slave_config cfg;
goto rsnd_dma_init_err;
dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
- dma->priv = priv;
- dma->inquiry = inquiry;
- dma->complete = complete;
INIT_WORK(&dma->work, rsnd_dma_do_work);
return 0;
/*
* rsnd_dai functions
*/
-#define rsnd_dai_call(rdai, io, fn) \
-({ \
- struct rsnd_mod *mod, *n; \
- int ret = 0; \
- for_each_rsnd_mod(mod, n, io) { \
- ret = rsnd_mod_call(mod, fn, rdai, io); \
- if (ret < 0) \
- break; \
- } \
- ret; \
+#define __rsnd_mod_call(mod, func, rdai, io) \
+({ \
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
+ struct device *dev = rsnd_priv_to_dev(priv); \
+ dev_dbg(dev, "%s [%d] %s\n", \
+ rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
+ (mod)->ops->func(mod, rdai, io); \
+})
+
+#define rsnd_mod_call(mod, func, rdai, io) \
+ (!(mod) ? -ENODEV : \
+ !((mod)->ops->func) ? 0 : \
+ __rsnd_mod_call(mod, func, (rdai), (io)))
+
+#define rsnd_dai_call(rdai, io, fn) \
+({ \
+ struct rsnd_mod *mod; \
+ int ret = 0, i; \
+ for (i = 0; i < RSND_MOD_MAX; i++) { \
+ mod = (io)->mod[i]; \
+ if (!mod) \
+ continue; \
+ ret = rsnd_mod_call(mod, fn, (rdai), (io)); \
+ if (ret < 0) \
+ break; \
+ } \
+ ret; \
})
-int rsnd_dai_connect(struct rsnd_dai *rdai,
- struct rsnd_mod *mod,
- struct rsnd_dai_stream *io)
+static int rsnd_dai_connect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
{
if (!mod)
return -EIO;
- if (!list_empty(&mod->list)) {
+ if (io->mod[mod->type]) {
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
return -EIO;
}
- list_add_tail(&mod->list, &io->head);
-
- return 0;
-}
-
-int rsnd_dai_disconnect(struct rsnd_mod *mod)
-{
- list_del_init(&mod->list);
+ io->mod[mod->type] = mod;
+ mod->io = io;
return 0;
}
{
int id = rdai - priv->rdai;
- if ((id < 0) || (id >= rsnd_dai_nr(priv)))
+ if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
return -EINVAL;
return id;
struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id)
{
- if ((id < 0) || (id >= rsnd_dai_nr(priv)))
+ if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
return NULL;
return priv->rdai + id;
{
struct snd_pcm_runtime *runtime = substream->runtime;
- if (!list_empty(&io->head))
- return -EIO;
-
- INIT_LIST_HEAD(&io->head);
io->substream = substream;
io->byte_pos = 0;
io->period_pos = 0;
if (ret < 0)
goto dai_trigger_end;
- ret = rsnd_gen_path_init(priv, rdai, io);
- if (ret < 0)
- goto dai_trigger_end;
-
ret = rsnd_dai_call(rdai, io, init);
if (ret < 0)
goto dai_trigger_end;
if (ret < 0)
goto dai_trigger_end;
- ret = rsnd_gen_path_exit(priv, rdai, io);
- if (ret < 0)
- goto dai_trigger_end;
-
ret = rsnd_platform_call(priv, dai, stop, ssi_id);
if (ret < 0)
goto dai_trigger_end;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
- rdai->clk_master = 1;
+ rdai->clk_master = 0;
break;
case SND_SOC_DAIFMT_CBS_CFS:
- rdai->clk_master = 0;
+ rdai->clk_master = 1; /* codec is slave, cpu is master */
break;
default:
return -EINVAL;
.set_fmt = rsnd_soc_dai_set_fmt,
};
+static int rsnd_path_init(struct rsnd_priv *priv,
+ struct rsnd_dai *rdai,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *mod;
+ struct rsnd_dai_platform_info *dai_info = rdai->info;
+ int ret;
+ int ssi_id = -1;
+ int src_id = -1;
+
+ /*
+ * Gen1 is created by SRU/SSI, and this SRU is base module of
+ * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
+ *
+ * Easy image is..
+ * Gen1 SRU = Gen2 SCU + SSIU + etc
+ *
+ * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
+ * using fixed path.
+ */
+ if (dai_info) {
+ if (rsnd_is_enable_path(io, ssi))
+ ssi_id = rsnd_info_id(priv, io, ssi);
+ if (rsnd_is_enable_path(io, src))
+ src_id = rsnd_info_id(priv, io, src);
+ } else {
+ /* get SSI's ID */
+ mod = rsnd_ssi_mod_get_frm_dai(priv,
+ rsnd_dai_id(priv, rdai),
+ rsnd_dai_is_play(rdai, io));
+ if (!mod)
+ return 0;
+ ssi_id = src_id = rsnd_mod_id(mod);
+ }
+
+ ret = 0;
+
+ /* SRC */
+ if (src_id >= 0) {
+ mod = rsnd_src_mod_get(priv, src_id);
+ ret = rsnd_dai_connect(mod, io);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* SSI */
+ if (ssi_id >= 0) {
+ mod = rsnd_ssi_mod_get(priv, ssi_id);
+ ret = rsnd_dai_connect(mod, io);
+ if (ret < 0)
+ return ret;
+ }
+
+ return ret;
+}
+
+static void rsnd_of_parse_dai(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device_node *dai_node, *dai_np;
+ struct device_node *ssi_node, *ssi_np;
+ struct device_node *src_node, *src_np;
+ struct device_node *playback, *capture;
+ struct rsnd_dai_platform_info *dai_info;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+ struct device *dev = &pdev->dev;
+ int nr, i;
+ int dai_i, ssi_i, src_i;
+
+ if (!of_data)
+ return;
+
+ dai_node = of_get_child_by_name(dev->of_node, "rcar_sound,dai");
+ if (!dai_node)
+ return;
+
+ nr = of_get_child_count(dai_node);
+ if (!nr)
+ return;
+
+ dai_info = devm_kzalloc(dev,
+ sizeof(struct rsnd_dai_platform_info) * nr,
+ GFP_KERNEL);
+ if (!dai_info) {
+ dev_err(dev, "dai info allocation error\n");
+ return;
+ }
+
+ info->dai_info_nr = nr;
+ info->dai_info = dai_info;
+
+ ssi_node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
+ src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
+
+#define mod_parse(name) \
+if (name##_node) { \
+ struct rsnd_##name##_platform_info *name##_info; \
+ \
+ name##_i = 0; \
+ for_each_child_of_node(name##_node, name##_np) { \
+ name##_info = info->name##_info + name##_i; \
+ \
+ if (name##_np == playback) \
+ dai_info->playback.name = name##_info; \
+ if (name##_np == capture) \
+ dai_info->capture.name = name##_info; \
+ \
+ name##_i++; \
+ } \
+}
+
+ /*
+ * parse all dai
+ */
+ dai_i = 0;
+ for_each_child_of_node(dai_node, dai_np) {
+ dai_info = info->dai_info + dai_i;
+
+ for (i = 0;; i++) {
+
+ playback = of_parse_phandle(dai_np, "playback", i);
+ capture = of_parse_phandle(dai_np, "capture", i);
+
+ if (!playback && !capture)
+ break;
+
+ mod_parse(ssi);
+ mod_parse(src);
+
+ if (playback)
+ of_node_put(playback);
+ if (capture)
+ of_node_put(capture);
+ }
+
+ dai_i++;
+ }
+}
+
static int rsnd_dai_probe(struct platform_device *pdev,
- struct rcar_snd_info *info,
+ const struct rsnd_of_data *of_data,
struct rsnd_priv *priv)
{
struct snd_soc_dai_driver *drv;
+ struct rcar_snd_info *info = rsnd_priv_to_info(priv);
struct rsnd_dai *rdai;
struct rsnd_mod *pmod, *cmod;
struct device *dev = rsnd_priv_to_dev(priv);
int dai_nr;
int i;
- /* get max dai nr */
- for (dai_nr = 0; dai_nr < 32; dai_nr++) {
- pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1);
- cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0);
+ rsnd_of_parse_dai(pdev, of_data, priv);
- if (!pmod && !cmod)
- break;
+ /*
+ * dai_nr should be set via dai_info_nr,
+ * but allow it to keeping compatible
+ */
+ dai_nr = info->dai_info_nr;
+ if (!dai_nr) {
+ /* get max dai nr */
+ for (dai_nr = 0; dai_nr < 32; dai_nr++) {
+ pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1);
+ cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0);
+
+ if (!pmod && !cmod)
+ break;
+ }
}
if (!dai_nr) {
return -ENOMEM;
}
+ priv->rdai_nr = dai_nr;
+ priv->daidrv = drv;
+ priv->rdai = rdai;
+
for (i = 0; i < dai_nr; i++) {
+ if (info->dai_info)
+ rdai[i].info = &info->dai_info[i];
pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1);
cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0);
/*
* init rsnd_dai
*/
- INIT_LIST_HEAD(&rdai[i].playback.head);
- INIT_LIST_HEAD(&rdai[i].capture.head);
-
snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
/*
drv[i].playback.formats = RSND_FMTS;
drv[i].playback.channels_min = 2;
drv[i].playback.channels_max = 2;
+
+ if (info->dai_info)
+ rdai[i].playback.info = &info->dai_info[i].playback;
+ rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
}
if (cmod) {
drv[i].capture.rates = RSND_RATES;
drv[i].capture.formats = RSND_FMTS;
drv[i].capture.channels_min = 2;
drv[i].capture.channels_max = 2;
+
+ if (info->dai_info)
+ rdai[i].capture.info = &info->dai_info[i].capture;
+ rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
}
dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
cmod ? "capture" : " -- ");
}
- priv->dai_nr = dai_nr;
- priv->daidrv = drv;
- priv->rdai = rdai;
-
return 0;
}
-static void rsnd_dai_remove(struct platform_device *pdev,
- struct rsnd_priv *priv)
-{
-}
-
/*
* pcm ops
*/
struct rcar_snd_info *info;
struct rsnd_priv *priv;
struct device *dev = &pdev->dev;
- int ret;
+ struct rsnd_dai *rdai;
+ const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev);
+ const struct rsnd_of_data *of_data;
+ int (*probe_func[])(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv) = {
+ rsnd_gen_probe,
+ rsnd_ssi_probe,
+ rsnd_src_probe,
+ rsnd_adg_probe,
+ rsnd_dai_probe,
+ };
+ int ret, i;
+
+ info = NULL;
+ of_data = NULL;
+ if (of_id) {
+ info = devm_kzalloc(&pdev->dev,
+ sizeof(struct rcar_snd_info), GFP_KERNEL);
+ of_data = of_id->data;
+ } else {
+ info = pdev->dev.platform_data;
+ }
- info = pdev->dev.platform_data;
if (!info) {
dev_err(dev, "driver needs R-Car sound information\n");
return -ENODEV;
/*
* init each module
*/
- ret = rsnd_gen_probe(pdev, info, priv);
- if (ret < 0)
- return ret;
-
- ret = rsnd_scu_probe(pdev, info, priv);
- if (ret < 0)
- return ret;
+ for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
+ ret = probe_func[i](pdev, of_data, priv);
+ if (ret)
+ return ret;
+ }
- ret = rsnd_adg_probe(pdev, info, priv);
- if (ret < 0)
- return ret;
+ for_each_rsnd_dai(rdai, priv, i) {
+ ret = rsnd_dai_call(rdai, &rdai->playback, probe);
+ if (ret)
+ return ret;
- ret = rsnd_ssi_probe(pdev, info, priv);
- if (ret < 0)
- return ret;
-
- ret = rsnd_dai_probe(pdev, info, priv);
- if (ret < 0)
- return ret;
+ ret = rsnd_dai_call(rdai, &rdai->capture, probe);
+ if (ret)
+ return ret;
+ }
/*
* asoc register
}
ret = snd_soc_register_component(dev, &rsnd_soc_component,
- priv->daidrv, rsnd_dai_nr(priv));
+ priv->daidrv, rsnd_rdai_nr(priv));
if (ret < 0) {
dev_err(dev, "cannot snd dai register\n");
goto exit_snd_soc;
static int rsnd_remove(struct platform_device *pdev)
{
struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct rsnd_dai *rdai;
+ int ret, i;
pm_runtime_disable(&pdev->dev);
- /*
- * remove each module
- */
- rsnd_ssi_remove(pdev, priv);
- rsnd_adg_remove(pdev, priv);
- rsnd_scu_remove(pdev, priv);
- rsnd_dai_remove(pdev, priv);
- rsnd_gen_remove(pdev, priv);
+ for_each_rsnd_dai(rdai, priv, i) {
+ ret = rsnd_dai_call(rdai, &rdai->playback, remove);
+ if (ret)
+ return ret;
+
+ ret = rsnd_dai_call(rdai, &rdai->capture, remove);
+ if (ret)
+ return ret;
+ }
return 0;
}
static struct platform_driver rsnd_driver = {
.driver = {
.name = "rcar_sound",
+ .of_match_table = rsnd_of_match,
},
.probe = rsnd_probe,
.remove = rsnd_remove,
projects / linux-2.6-microblaze.git / blobdiff