mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 08:16:43 +07:00
ASoC: rsnd: add salvage support for under/over flow error on SSI
L/R channel will be switched if under/over flow error happen on Renesas R-Car sound device by the HW bugs. Then, HW restart is required for salvage. This patch add salvage support for SSI. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
parent
f0ef0cb84b
commit
4e7d606cd5
@ -202,14 +202,14 @@ static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi,
|
||||
}
|
||||
|
||||
cr_mode = rsnd_ssi_is_dma_mode(&ssi->mod) ?
|
||||
DMEN : /* DMA : use DMA */
|
||||
UIEN | OIEN | DIEN; /* PIO : enable interrupt */
|
||||
DMEN : /* DMA : enable DMA */
|
||||
DIEN; /* PIO : enable Data interrupt */
|
||||
|
||||
|
||||
cr = ssi->cr_own |
|
||||
ssi->cr_clk |
|
||||
cr_mode |
|
||||
EN;
|
||||
UIEN | OIEN | EN;
|
||||
|
||||
rsnd_mod_write(&ssi->mod, SSICR, cr);
|
||||
|
||||
@ -355,63 +355,6 @@ static void rsnd_ssi_record_error(struct rsnd_ssi *ssi, u32 status)
|
||||
/*
|
||||
* SSI PIO
|
||||
*/
|
||||
static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data)
|
||||
{
|
||||
struct rsnd_ssi *ssi = data;
|
||||
struct rsnd_mod *mod = &ssi->mod;
|
||||
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
|
||||
u32 status = rsnd_mod_read(mod, SSISR);
|
||||
irqreturn_t ret = IRQ_NONE;
|
||||
|
||||
if (io && (status & DIRQ)) {
|
||||
struct rsnd_dai *rdai = ssi->rdai;
|
||||
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
|
||||
u32 *buf = (u32 *)(runtime->dma_area +
|
||||
rsnd_dai_pointer_offset(io, 0));
|
||||
|
||||
rsnd_ssi_record_error(ssi, status);
|
||||
|
||||
/*
|
||||
* 8/16/32 data can be assesse to TDR/RDR register
|
||||
* directly as 32bit data
|
||||
* see rsnd_ssi_init()
|
||||
*/
|
||||
if (rsnd_dai_is_play(rdai, io))
|
||||
rsnd_mod_write(mod, SSITDR, *buf);
|
||||
else
|
||||
*buf = rsnd_mod_read(mod, SSIRDR);
|
||||
|
||||
rsnd_dai_pointer_update(io, sizeof(*buf));
|
||||
|
||||
ret = IRQ_HANDLED;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rsnd_ssi_pio_probe(struct rsnd_mod *mod,
|
||||
struct rsnd_dai *rdai)
|
||||
{
|
||||
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||||
struct device *dev = rsnd_priv_to_dev(priv);
|
||||
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
|
||||
int irq = ssi->info->pio_irq;
|
||||
int ret;
|
||||
|
||||
ret = devm_request_irq(dev, irq,
|
||||
rsnd_ssi_pio_interrupt,
|
||||
IRQF_SHARED,
|
||||
dev_name(dev), ssi);
|
||||
if (ret)
|
||||
dev_err(dev, "%s[%d] (PIO) request interrupt failed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
else
|
||||
dev_dbg(dev, "%s[%d] (PIO) is probed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rsnd_ssi_start(struct rsnd_mod *mod,
|
||||
struct rsnd_dai *rdai)
|
||||
{
|
||||
@ -443,6 +386,79 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data)
|
||||
{
|
||||
struct rsnd_ssi *ssi = data;
|
||||
struct rsnd_dai *rdai = ssi->rdai;
|
||||
struct rsnd_mod *mod = &ssi->mod;
|
||||
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
|
||||
u32 status = rsnd_mod_read(mod, SSISR);
|
||||
|
||||
if (!io)
|
||||
return IRQ_NONE;
|
||||
|
||||
/* PIO only */
|
||||
if (status & DIRQ) {
|
||||
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
|
||||
u32 *buf = (u32 *)(runtime->dma_area +
|
||||
rsnd_dai_pointer_offset(io, 0));
|
||||
|
||||
/*
|
||||
* 8/16/32 data can be assesse to TDR/RDR register
|
||||
* directly as 32bit data
|
||||
* see rsnd_ssi_init()
|
||||
*/
|
||||
if (rsnd_dai_is_play(rdai, io))
|
||||
rsnd_mod_write(mod, SSITDR, *buf);
|
||||
else
|
||||
*buf = rsnd_mod_read(mod, SSIRDR);
|
||||
|
||||
rsnd_dai_pointer_update(io, sizeof(*buf));
|
||||
}
|
||||
|
||||
/* PIO / DMA */
|
||||
if (status & (UIRQ | OIRQ)) {
|
||||
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||||
struct device *dev = rsnd_priv_to_dev(priv);
|
||||
|
||||
/*
|
||||
* restart SSI
|
||||
*/
|
||||
rsnd_ssi_stop(mod, rdai);
|
||||
rsnd_ssi_start(mod, rdai);
|
||||
|
||||
dev_dbg(dev, "%s[%d] restart\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
}
|
||||
|
||||
rsnd_ssi_record_error(ssi, status);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int rsnd_ssi_pio_probe(struct rsnd_mod *mod,
|
||||
struct rsnd_dai *rdai)
|
||||
{
|
||||
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||||
struct device *dev = rsnd_priv_to_dev(priv);
|
||||
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
|
||||
int irq = ssi->info->pio_irq;
|
||||
int ret;
|
||||
|
||||
ret = devm_request_irq(dev, irq,
|
||||
rsnd_ssi_pio_interrupt,
|
||||
IRQF_SHARED,
|
||||
dev_name(dev), ssi);
|
||||
if (ret)
|
||||
dev_err(dev, "%s[%d] (PIO) request interrupt failed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
else
|
||||
dev_dbg(dev, "%s[%d] (PIO) is probed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
|
||||
.name = SSI_NAME,
|
||||
.probe = rsnd_ssi_pio_probe,
|
||||
@ -461,17 +477,28 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
|
||||
int dma_id = ssi->info->dma_id;
|
||||
int ret;
|
||||
|
||||
ret = devm_request_irq(dev, ssi->info->pio_irq,
|
||||
rsnd_ssi_pio_interrupt,
|
||||
IRQF_SHARED,
|
||||
dev_name(dev), ssi);
|
||||
if (ret)
|
||||
goto rsnd_ssi_dma_probe_fail;
|
||||
|
||||
ret = rsnd_dma_init(
|
||||
priv, rsnd_mod_to_dma(mod),
|
||||
rsnd_info_is_playback(priv, ssi),
|
||||
dma_id);
|
||||
if (ret)
|
||||
goto rsnd_ssi_dma_probe_fail;
|
||||
|
||||
if (ret < 0)
|
||||
dev_err(dev, "%s[%d] (DMA) is failed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
else
|
||||
dev_dbg(dev, "%s[%d] (DMA) is probed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
dev_dbg(dev, "%s[%d] (DMA) is probed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
|
||||
return ret;
|
||||
|
||||
rsnd_ssi_dma_probe_fail:
|
||||
dev_err(dev, "%s[%d] (DMA) is failed\n",
|
||||
rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -479,8 +506,16 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
|
||||
static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
|
||||
struct rsnd_dai *rdai)
|
||||
{
|
||||
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||||
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
|
||||
struct device *dev = rsnd_priv_to_dev(priv);
|
||||
int irq = ssi->info->pio_irq;
|
||||
|
||||
rsnd_dma_quit(rsnd_mod_to_priv(mod), rsnd_mod_to_dma(mod));
|
||||
|
||||
/* PIO will request IRQ again */
|
||||
devm_free_irq(dev, irq, ssi);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user