From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- sound/soc/sh/rcar/dma.c | 113 ++++++++++++++++++++++++++++-------------------- 1 file changed, 66 insertions(+), 47 deletions(-) (limited to 'sound/soc/sh/rcar/dma.c') diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 144308f15..d306e298c 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -32,11 +32,12 @@ struct rsnd_dma_ctrl { /* * Audio DMAC */ -static void rsnd_dmaen_complete(void *data) +static void __rsnd_dmaen_complete(struct rsnd_mod *mod, + struct rsnd_dai_stream *io) { - struct rsnd_dma *dma = (struct rsnd_dma *)data; - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + bool elapsed = false; + unsigned long flags; /* * Renesas sound Gen1 needs 1 DMAC, @@ -49,23 +50,36 @@ static void rsnd_dmaen_complete(void *data) * rsnd_dai_pointer_update() will be called twice, * ant it will breaks io->byte_pos */ + spin_lock_irqsave(&priv->lock, flags); + + if (rsnd_io_is_working(io)) + elapsed = rsnd_dai_pointer_update(io, io->byte_per_period); - rsnd_dai_pointer_update(io, io->byte_per_period); + spin_unlock_irqrestore(&priv->lock, flags); + + if (elapsed) + rsnd_dai_period_elapsed(io); } -static void rsnd_dmaen_stop(struct rsnd_dma *dma) +static void rsnd_dmaen_complete(void *data) +{ + struct rsnd_mod *mod = data; + + rsnd_mod_interrupt(mod, __rsnd_dmaen_complete); +} + +static void rsnd_dmaen_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); dmaengine_terminate_all(dmaen->chan); } -static void rsnd_dmaen_start(struct rsnd_dma *dma) +static void rsnd_dmaen_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); 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_substream *substream = io->substream; struct device *dev = rsnd_priv_to_dev(priv); struct dma_async_tx_descriptor *desc; @@ -84,7 +98,7 @@ static void rsnd_dmaen_start(struct rsnd_dma *dma) } desc->callback = rsnd_dmaen_complete; - desc->callback_param = dma; + desc->callback_param = mod; if (dmaengine_submit(desc) < 0) { dev_err(dev, "dmaengine_submit() fail\n"); @@ -115,7 +129,8 @@ struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, return chan; } -static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from, +static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_dai_stream *io, + struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { if ((!mod_from && !mod_to) || @@ -123,19 +138,19 @@ static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from, return NULL; if (mod_from) - return rsnd_mod_dma_req(mod_from); + return rsnd_mod_dma_req(io, mod_from); else - return rsnd_mod_dma_req(mod_to); + return rsnd_mod_dma_req(io, mod_to); } -static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, +static int rsnd_dmaen_init(struct rsnd_dai_stream *io, + struct rsnd_dma *dma, int id, struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct device *dev = rsnd_priv_to_dev(priv); struct dma_slave_config cfg = {}; - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); int is_play = rsnd_io_is_play(io); int ret; @@ -145,7 +160,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, } if (dev->of_node) { - dmaen->chan = rsnd_dmaen_request_channel(mod_from, mod_to); + dmaen->chan = rsnd_dmaen_request_channel(io, mod_from, mod_to); } else { dma_cap_mask_t mask; @@ -177,7 +192,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, return 0; rsnd_dma_init_err: - rsnd_dma_quit(dma); + rsnd_dma_quit(io, dma); rsnd_dma_channel_err: /* @@ -189,7 +204,7 @@ rsnd_dma_channel_err: return -EAGAIN; } -static void rsnd_dmaen_quit(struct rsnd_dma *dma) +static void rsnd_dmaen_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma); @@ -238,9 +253,9 @@ static const u8 gen2_id_table_cmd[] = { 0x38, /* SCU_CMD1 */ }; -static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod) +static u32 rsnd_dmapp_get_id(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) { - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); @@ -268,11 +283,12 @@ static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod) return entry[id]; } -static u32 rsnd_dmapp_get_chcr(struct rsnd_mod *mod_from, +static u32 rsnd_dmapp_get_chcr(struct rsnd_dai_stream *io, + struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { - return (rsnd_dmapp_get_id(mod_from) << 24) + - (rsnd_dmapp_get_id(mod_to) << 16); + return (rsnd_dmapp_get_id(io, mod_from) << 24) + + (rsnd_dmapp_get_id(io, mod_to) << 16); } #define rsnd_dmapp_addr(dmac, dma, reg) \ @@ -299,7 +315,7 @@ static u32 rsnd_dmapp_read(struct rsnd_dma *dma, u32 reg) return ioread32(rsnd_dmapp_addr(dmac, dma, reg)); } -static void rsnd_dmapp_stop(struct rsnd_dma *dma) +static void rsnd_dmapp_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { int i; @@ -312,7 +328,7 @@ static void rsnd_dmapp_stop(struct rsnd_dma *dma) } } -static void rsnd_dmapp_start(struct rsnd_dma *dma) +static void rsnd_dmapp_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma); @@ -321,19 +337,21 @@ static void rsnd_dmapp_start(struct rsnd_dma *dma) rsnd_dmapp_write(dma, dmapp->chcr, PDMACHCR); } -static int rsnd_dmapp_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id, +static int rsnd_dmapp_init(struct rsnd_dai_stream *io, + struct rsnd_dma *dma, int id, struct rsnd_mod *mod_from, struct rsnd_mod *mod_to) { struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma); + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); struct device *dev = rsnd_priv_to_dev(priv); dmapp->dmapp_id = dmac->dmapp_num; - dmapp->chcr = rsnd_dmapp_get_chcr(mod_from, mod_to) | PDMACHCR_DE; + dmapp->chcr = rsnd_dmapp_get_chcr(io, mod_from, mod_to) | PDMACHCR_DE; dmac->dmapp_num++; - rsnd_dmapp_stop(dma); + rsnd_dmapp_stop(io, dma); dev_dbg(dev, "id/src/dst/chcr = %d/%pad/%pad/%08x\n", dmapp->dmapp_id, &dma->src_addr, &dma->dst_addr, dmapp->chcr); @@ -386,12 +404,12 @@ static struct rsnd_dma_ops rsnd_dmapp_ops = { #define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i)) static dma_addr_t -rsnd_gen2_dma_addr(struct rsnd_priv *priv, +rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, struct rsnd_mod *mod, int is_play, int is_from) { + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct device *dev = rsnd_priv_to_dev(priv); - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI); phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU); int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); @@ -438,7 +456,7 @@ rsnd_gen2_dma_addr(struct rsnd_priv *priv, dev_err(dev, "DVC is selected without SRC\n"); /* use SSIU or SSI ? */ - if (is_ssi && rsnd_ssi_use_busif(mod)) + if (is_ssi && rsnd_ssi_use_busif(io, mod)) is_ssi++; return (is_from) ? @@ -446,10 +464,12 @@ rsnd_gen2_dma_addr(struct rsnd_priv *priv, dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr; } -static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv, +static dma_addr_t rsnd_dma_addr(struct rsnd_dai_stream *io, struct rsnd_mod *mod, int is_play, int is_from) { + struct rsnd_priv *priv = rsnd_io_to_priv(io); + /* * gen1 uses default DMA addr */ @@ -459,17 +479,17 @@ static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv, if (!mod) return 0; - return rsnd_gen2_dma_addr(priv, mod, is_play, is_from); + return rsnd_gen2_dma_addr(io, mod, is_play, is_from); } #define MOD_MAX 4 /* MEM/SSI/SRC/DVC */ static void rsnd_dma_of_path(struct rsnd_dma *dma, + struct rsnd_dai_stream *io, int is_play, struct rsnd_mod **mod_from, struct rsnd_mod **mod_to) { struct rsnd_mod *this = rsnd_dma_to_mod(dma); - struct rsnd_dai_stream *io = rsnd_mod_to_io(this); struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); @@ -524,17 +544,17 @@ static void rsnd_dma_of_path(struct rsnd_dma *dma, } } -void rsnd_dma_stop(struct rsnd_dma *dma) +void rsnd_dma_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { - dma->ops->stop(dma); + dma->ops->stop(io, dma); } -void rsnd_dma_start(struct rsnd_dma *dma) +void rsnd_dma_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { - dma->ops->start(dma); + dma->ops->start(io, dma); } -void rsnd_dma_quit(struct rsnd_dma *dma) +void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma) { struct rsnd_mod *mod = rsnd_dma_to_mod(dma); struct rsnd_priv *priv = rsnd_mod_to_priv(mod); @@ -543,15 +563,14 @@ void rsnd_dma_quit(struct rsnd_dma *dma) if (!dmac) return; - dma->ops->quit(dma); + dma->ops->quit(io, dma); } -int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) +int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) { - struct rsnd_mod *mod = rsnd_dma_to_mod(dma); struct rsnd_mod *mod_from; struct rsnd_mod *mod_to; - struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); int is_play = rsnd_io_is_play(io); @@ -564,10 +583,10 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) if (!dmac) return -EAGAIN; - rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to); + rsnd_dma_of_path(dma, io, is_play, &mod_from, &mod_to); - dma->src_addr = rsnd_dma_addr(priv, mod_from, is_play, 1); - dma->dst_addr = rsnd_dma_addr(priv, mod_to, is_play, 0); + dma->src_addr = rsnd_dma_addr(io, mod_from, is_play, 1); + dma->dst_addr = rsnd_dma_addr(io, mod_to, is_play, 0); /* for Gen2 */ if (mod_from && mod_to) @@ -579,7 +598,7 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id) if (rsnd_is_gen1(priv)) dma->ops = &rsnd_dmaen_ops; - return dma->ops->init(priv, dma, id, mod_from, mod_to); + return dma->ops->init(io, dma, id, mod_from, mod_to); } int rsnd_dma_probe(struct platform_device *pdev, -- cgit v1.2.3-54-g00ecf