Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
On Mon, Mar 10, 2014 at 06:11:50PM -0700, Kuninori Morimoto wrote: > From: Kuninori Morimoto > > Add support Audio DMAC peri peri driver > for Renesas R-Car Gen2 SoC, using 'shdma-base' > DMA driver framework. > > Signed-off-by: Kuninori Morimoto Please run checkpatch *everytime* you generate a patch. I have fixes a simple format error :( Applied, now -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
On Mon, Mar 10, 2014 at 06:11:50PM -0700, Kuninori Morimoto wrote: From: Kuninori Morimoto kuninori.morimoto...@renesas.com Add support Audio DMAC peri peri driver for Renesas R-Car Gen2 SoC, using 'shdma-base' DMA driver framework. Signed-off-by: Kuninori Morimoto kuninori.morimoto...@renesas.com Please run checkpatch *everytime* you generate a patch. I have fixes a simple format error :( Applied, now -- ~Vinod -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
Hi Vinod, and all
Could you please teach me current status of this patch ??
> From: Kuninori Morimoto
>
> Add support Audio DMAC peri peri driver
> for Renesas R-Car Gen2 SoC, using 'shdma-base'
> DMA driver framework.
>
> Signed-off-by: Kuninori Morimoto
> ---
> v2 -> v3
>
> - modiry copyright
> - use %pad for dma_addr_t
> - use sizeof(*hoge) for devm_kzalloc()
>
> drivers/dma/sh/Kconfig |6 +
> drivers/dma/sh/Makefile|1 +
> drivers/dma/sh/rcar-audmapp.c | 320
>
> include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
> 4 files changed, 361 insertions(+)
> create mode 100644 drivers/dma/sh/rcar-audmapp.c
> create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
>
> diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
> index dadd9e01..b4c8138 100644
> --- a/drivers/dma/sh/Kconfig
> +++ b/drivers/dma/sh/Kconfig
> @@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
> help
> Enable support for the Renesas R-Car series DMA controllers.
>
> +config RCAR_AUDMAC_PP
> + tristate "Renesas R-Car Audio DMAC Peripheral Peripheral support"
> + depends on SH_DMAE_BASE
> + help
> + Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
> controllers.
> +
> config SHDMA_R8A73A4
> def_bool y
> depends on ARCH_R8A73A4 && SH_DMAE != n
> diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
> index e856af2..1ce88b2 100644
> --- a/drivers/dma/sh/Makefile
> +++ b/drivers/dma/sh/Makefile
> @@ -7,3 +7,4 @@ endif
> shdma-objs := $(shdma-y)
> obj-$(CONFIG_SUDMAC) += sudmac.o
> obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
> +obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
> diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
> new file mode 100644
> index 000..72d7475
> --- /dev/null
> +++ b/drivers/dma/sh/rcar-audmapp.c
> @@ -0,0 +1,320 @@
> +/*
> + * This is for Renesas R-Car Audio-DMAC-peri-peri.
> + *
> + * Copyright (C) 2014 Renesas Electronics Corporation
> + * Copyright (C) 2014 Kuninori Morimoto
> + *
> + * based on the drivers/dma/sh/shdma.c
> + *
> + * Copyright (C) 2011-2012 Guennadi Liakhovetski
> + * Copyright (C) 2009 Nobuhiro Iwamatsu
> + * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
> + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
> + *
> + * This is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + */
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
> +
> +/*
> + * DMA register
> + */
> +#define PDMASAR 0x00
> +#define PDMADAR 0x04
> +#define PDMACHCR 0x0c
> +
> +/* PDMACHCR */
> +#define PDMACHCR_DE (1 << 0)
> +
> +#define AUDMAPP_MAX_CHANNELS 29
> +
> +/* Default MEMCPY transfer size = 2^2 = 4 bytes */
> +#define LOG2_DEFAULT_XFER_SIZE 2
> +#define AUDMAPP_SLAVE_NUMBER 256
> +#define AUDMAPP_LEN_MAX (16 * 1024 * 1024)
> +
> +struct audmapp_chan {
> + struct shdma_chan shdma_chan;
> + struct audmapp_slave_config *config;
> + void __iomem *base;
> +};
> +
> +struct audmapp_device {
> + struct shdma_dev shdma_dev;
> + struct audmapp_pdata *pdata;
> + struct device *dev;
> + void __iomem *chan_reg;
> +};
> +
> +#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
> +#define to_dev(chan) container_of(chan->shdma_chan.dma_chan.device, \
> + struct audmapp_device, shdma_dev.dma_dev)
> +
> +static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
> +{
> + struct audmapp_device *audev = to_dev(auchan);
> + struct device *dev = audev->dev;
> +
> + dev_dbg(dev, "w %p : %08x\n", auchan->base + reg, data);
> +
> + iowrite32(data, auchan->base + reg);
> +}
> +
> +static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
> +{
> + return ioread32(auchan->base + reg);
> +}
> +
> +static void audmapp_halt(struct shdma_chan *schan)
> +{
> + struct audmapp_chan *auchan = to_chan(schan);
> + int i;
> +
> + audmapp_write(auchan, 0, PDMACHCR);
> +
> + for(i = 0; i < 1024; i++) {
> + if (0 == audmapp_read(auchan, PDMACHCR))
> + return;
> + udelay(1);
> + }
> +}
> +
> +static void audmapp_start_xfer(struct shdma_chan *schan,
> +struct shdma_desc *sdecs)
> +{
> + struct audmapp_chan *auchan = to_chan(schan);
> + struct audmapp_device *audev = to_dev(auchan);
> + struct audmapp_slave_config *cfg = auchan->config;
> + struct device *dev = audev->dev;
> + u32 chcr = cfg->chcr | PDMACHCR_DE;
> +
> + dev_dbg(dev, "src/dst/chcr
Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
Hi Vinod, and all
Could you please teach me current status of this patch ??
From: Kuninori Morimoto kuninori.morimoto...@renesas.com
Add support Audio DMAC peri peri driver
for Renesas R-Car Gen2 SoC, using 'shdma-base'
DMA driver framework.
Signed-off-by: Kuninori Morimoto kuninori.morimoto...@renesas.com
---
v2 - v3
- modiry copyright
- use %pad for dma_addr_t
- use sizeof(*hoge) for devm_kzalloc()
drivers/dma/sh/Kconfig |6 +
drivers/dma/sh/Makefile|1 +
drivers/dma/sh/rcar-audmapp.c | 320
include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
4 files changed, 361 insertions(+)
create mode 100644 drivers/dma/sh/rcar-audmapp.c
create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index dadd9e01..b4c8138 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
help
Enable support for the Renesas R-Car series DMA controllers.
+config RCAR_AUDMAC_PP
+ tristate Renesas R-Car Audio DMAC Peripheral Peripheral support
+ depends on SH_DMAE_BASE
+ help
+ Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
controllers.
+
config SHDMA_R8A73A4
def_bool y
depends on ARCH_R8A73A4 SH_DMAE != n
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index e856af2..1ce88b2 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -7,3 +7,4 @@ endif
shdma-objs := $(shdma-y)
obj-$(CONFIG_SUDMAC) += sudmac.o
obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
+obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
new file mode 100644
index 000..72d7475
--- /dev/null
+++ b/drivers/dma/sh/rcar-audmapp.c
@@ -0,0 +1,320 @@
+/*
+ * This is for Renesas R-Car Audio-DMAC-peri-peri.
+ *
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ * Copyright (C) 2014 Kuninori Morimoto kuninori.morimoto...@renesas.com
+ *
+ * based on the drivers/dma/sh/shdma.c
+ *
+ * Copyright (C) 2011-2012 Guennadi Liakhovetski g.liakhovet...@gmx.de
+ * Copyright (C) 2009 Nobuhiro Iwamatsu iwamatsu.nobuh...@renesas.com
+ * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include linux/delay.h
+#include linux/init.h
+#include linux/module.h
+#include linux/slab.h
+#include linux/dmaengine.h
+#include linux/platform_data/dma-rcar-audmapp.h
+#include linux/platform_device.h
+#include linux/shdma-base.h
+
+/*
+ * DMA register
+ */
+#define PDMASAR 0x00
+#define PDMADAR 0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE (1 0)
+
+#define AUDMAPP_MAX_CHANNELS 29
+
+/* Default MEMCPY transfer size = 2^2 = 4 bytes */
+#define LOG2_DEFAULT_XFER_SIZE 2
+#define AUDMAPP_SLAVE_NUMBER 256
+#define AUDMAPP_LEN_MAX (16 * 1024 * 1024)
+
+struct audmapp_chan {
+ struct shdma_chan shdma_chan;
+ struct audmapp_slave_config *config;
+ void __iomem *base;
+};
+
+struct audmapp_device {
+ struct shdma_dev shdma_dev;
+ struct audmapp_pdata *pdata;
+ struct device *dev;
+ void __iomem *chan_reg;
+};
+
+#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
+#define to_dev(chan) container_of(chan-shdma_chan.dma_chan.device, \
+ struct audmapp_device, shdma_dev.dma_dev)
+
+static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
+{
+ struct audmapp_device *audev = to_dev(auchan);
+ struct device *dev = audev-dev;
+
+ dev_dbg(dev, w %p : %08x\n, auchan-base + reg, data);
+
+ iowrite32(data, auchan-base + reg);
+}
+
+static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
+{
+ return ioread32(auchan-base + reg);
+}
+
+static void audmapp_halt(struct shdma_chan *schan)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ int i;
+
+ audmapp_write(auchan, 0, PDMACHCR);
+
+ for(i = 0; i 1024; i++) {
+ if (0 == audmapp_read(auchan, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void audmapp_start_xfer(struct shdma_chan *schan,
+struct shdma_desc *sdecs)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ struct audmapp_device *audev = to_dev(auchan);
+ struct audmapp_slave_config *cfg = auchan-config;
[PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
From: Kuninori Morimoto
Add support Audio DMAC peri peri driver
for Renesas R-Car Gen2 SoC, using 'shdma-base'
DMA driver framework.
Signed-off-by: Kuninori Morimoto
---
v2 -> v3
- modiry copyright
- use %pad for dma_addr_t
- use sizeof(*hoge) for devm_kzalloc()
drivers/dma/sh/Kconfig |6 +
drivers/dma/sh/Makefile|1 +
drivers/dma/sh/rcar-audmapp.c | 320
include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
4 files changed, 361 insertions(+)
create mode 100644 drivers/dma/sh/rcar-audmapp.c
create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index dadd9e01..b4c8138 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
help
Enable support for the Renesas R-Car series DMA controllers.
+config RCAR_AUDMAC_PP
+ tristate "Renesas R-Car Audio DMAC Peripheral Peripheral support"
+ depends on SH_DMAE_BASE
+ help
+ Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
controllers.
+
config SHDMA_R8A73A4
def_bool y
depends on ARCH_R8A73A4 && SH_DMAE != n
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index e856af2..1ce88b2 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -7,3 +7,4 @@ endif
shdma-objs := $(shdma-y)
obj-$(CONFIG_SUDMAC) += sudmac.o
obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
+obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
new file mode 100644
index 000..72d7475
--- /dev/null
+++ b/drivers/dma/sh/rcar-audmapp.c
@@ -0,0 +1,320 @@
+/*
+ * This is for Renesas R-Car Audio-DMAC-peri-peri.
+ *
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ * Copyright (C) 2014 Kuninori Morimoto
+ *
+ * based on the drivers/dma/sh/shdma.c
+ *
+ * Copyright (C) 2011-2012 Guennadi Liakhovetski
+ * Copyright (C) 2009 Nobuhiro Iwamatsu
+ * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/*
+ * DMA register
+ */
+#define PDMASAR0x00
+#define PDMADAR0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE(1 << 0)
+
+#define AUDMAPP_MAX_CHANNELS 29
+
+/* Default MEMCPY transfer size = 2^2 = 4 bytes */
+#define LOG2_DEFAULT_XFER_SIZE 2
+#define AUDMAPP_SLAVE_NUMBER 256
+#define AUDMAPP_LEN_MAX(16 * 1024 * 1024)
+
+struct audmapp_chan {
+ struct shdma_chan shdma_chan;
+ struct audmapp_slave_config *config;
+ void __iomem *base;
+};
+
+struct audmapp_device {
+ struct shdma_dev shdma_dev;
+ struct audmapp_pdata *pdata;
+ struct device *dev;
+ void __iomem *chan_reg;
+};
+
+#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
+#define to_dev(chan) container_of(chan->shdma_chan.dma_chan.device,\
+ struct audmapp_device, shdma_dev.dma_dev)
+
+static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
+{
+ struct audmapp_device *audev = to_dev(auchan);
+ struct device *dev = audev->dev;
+
+ dev_dbg(dev, "w %p : %08x\n", auchan->base + reg, data);
+
+ iowrite32(data, auchan->base + reg);
+}
+
+static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
+{
+ return ioread32(auchan->base + reg);
+}
+
+static void audmapp_halt(struct shdma_chan *schan)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ int i;
+
+ audmapp_write(auchan, 0, PDMACHCR);
+
+ for(i = 0; i < 1024; i++) {
+ if (0 == audmapp_read(auchan, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void audmapp_start_xfer(struct shdma_chan *schan,
+ struct shdma_desc *sdecs)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ struct audmapp_device *audev = to_dev(auchan);
+ struct audmapp_slave_config *cfg = auchan->config;
+ struct device *dev = audev->dev;
+ u32 chcr = cfg->chcr | PDMACHCR_DE;
+
+ dev_dbg(dev, "src/dst/chcr = %pad/%pad/%x\n",
+ >src, >dst, cfg->chcr);
+
+ audmapp_write(auchan, cfg->src, PDMASAR);
+ audmapp_write(auchan, cfg->dst, PDMADAR);
+ audmapp_write(auchan, chcr, PDMACHCR);
+}
+
+static struct audmapp_slave_config *
+audmapp_find_slave(struct audmapp_chan *auchan, int
Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
On Sun, 2014-03-09 at 19:25 -0700, Kuninori Morimoto wrote: > From: Kuninori Morimoto > > Add support Audio DMAC peri peri driver > for Renesas R-Car Gen2 SoC, using 'shdma-base' > DMA driver framework. > > Signed-off-by: Kuninori Morimoto > --- > v2 -> v3 My previous mail is applicable to this version too. -- Andy Shevchenko Intel Finland Oy - Intel Finland Oy Registered Address: PL 281, 00181 Helsinki Business Identity Code: 0357606 - 4 Domiciled in Helsinki This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.
Re: [PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
On Sun, 2014-03-09 at 19:25 -0700, Kuninori Morimoto wrote: From: Kuninori Morimoto kuninori.morimoto...@renesas.com Add support Audio DMAC peri peri driver for Renesas R-Car Gen2 SoC, using 'shdma-base' DMA driver framework. Signed-off-by: Kuninori Morimoto kuninori.morimoto...@renesas.com --- v2 - v3 My previous mail is applicable to this version too. -- Andy Shevchenko andriy.shevche...@intel.com Intel Finland Oy - Intel Finland Oy Registered Address: PL 281, 00181 Helsinki Business Identity Code: 0357606 - 4 Domiciled in Helsinki This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.
[PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
From: Kuninori Morimoto kuninori.morimoto...@renesas.com
Add support Audio DMAC peri peri driver
for Renesas R-Car Gen2 SoC, using 'shdma-base'
DMA driver framework.
Signed-off-by: Kuninori Morimoto kuninori.morimoto...@renesas.com
---
v2 - v3
- modiry copyright
- use %pad for dma_addr_t
- use sizeof(*hoge) for devm_kzalloc()
drivers/dma/sh/Kconfig |6 +
drivers/dma/sh/Makefile|1 +
drivers/dma/sh/rcar-audmapp.c | 320
include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
4 files changed, 361 insertions(+)
create mode 100644 drivers/dma/sh/rcar-audmapp.c
create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index dadd9e01..b4c8138 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
help
Enable support for the Renesas R-Car series DMA controllers.
+config RCAR_AUDMAC_PP
+ tristate Renesas R-Car Audio DMAC Peripheral Peripheral support
+ depends on SH_DMAE_BASE
+ help
+ Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
controllers.
+
config SHDMA_R8A73A4
def_bool y
depends on ARCH_R8A73A4 SH_DMAE != n
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index e856af2..1ce88b2 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -7,3 +7,4 @@ endif
shdma-objs := $(shdma-y)
obj-$(CONFIG_SUDMAC) += sudmac.o
obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
+obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
new file mode 100644
index 000..72d7475
--- /dev/null
+++ b/drivers/dma/sh/rcar-audmapp.c
@@ -0,0 +1,320 @@
+/*
+ * This is for Renesas R-Car Audio-DMAC-peri-peri.
+ *
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ * Copyright (C) 2014 Kuninori Morimoto kuninori.morimoto...@renesas.com
+ *
+ * based on the drivers/dma/sh/shdma.c
+ *
+ * Copyright (C) 2011-2012 Guennadi Liakhovetski g.liakhovet...@gmx.de
+ * Copyright (C) 2009 Nobuhiro Iwamatsu iwamatsu.nobuh...@renesas.com
+ * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include linux/delay.h
+#include linux/init.h
+#include linux/module.h
+#include linux/slab.h
+#include linux/dmaengine.h
+#include linux/platform_data/dma-rcar-audmapp.h
+#include linux/platform_device.h
+#include linux/shdma-base.h
+
+/*
+ * DMA register
+ */
+#define PDMASAR0x00
+#define PDMADAR0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE(1 0)
+
+#define AUDMAPP_MAX_CHANNELS 29
+
+/* Default MEMCPY transfer size = 2^2 = 4 bytes */
+#define LOG2_DEFAULT_XFER_SIZE 2
+#define AUDMAPP_SLAVE_NUMBER 256
+#define AUDMAPP_LEN_MAX(16 * 1024 * 1024)
+
+struct audmapp_chan {
+ struct shdma_chan shdma_chan;
+ struct audmapp_slave_config *config;
+ void __iomem *base;
+};
+
+struct audmapp_device {
+ struct shdma_dev shdma_dev;
+ struct audmapp_pdata *pdata;
+ struct device *dev;
+ void __iomem *chan_reg;
+};
+
+#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
+#define to_dev(chan) container_of(chan-shdma_chan.dma_chan.device,\
+ struct audmapp_device, shdma_dev.dma_dev)
+
+static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
+{
+ struct audmapp_device *audev = to_dev(auchan);
+ struct device *dev = audev-dev;
+
+ dev_dbg(dev, w %p : %08x\n, auchan-base + reg, data);
+
+ iowrite32(data, auchan-base + reg);
+}
+
+static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
+{
+ return ioread32(auchan-base + reg);
+}
+
+static void audmapp_halt(struct shdma_chan *schan)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ int i;
+
+ audmapp_write(auchan, 0, PDMACHCR);
+
+ for(i = 0; i 1024; i++) {
+ if (0 == audmapp_read(auchan, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void audmapp_start_xfer(struct shdma_chan *schan,
+ struct shdma_desc *sdecs)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ struct audmapp_device *audev = to_dev(auchan);
+ struct audmapp_slave_config *cfg = auchan-config;
+ struct device *dev = audev-dev;
+ u32 chcr = cfg-chcr | PDMACHCR_DE;
+
+ dev_dbg(dev, src/dst/chcr = %pad/%pad/%x\n,
+
[PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
From: Kuninori Morimoto
Add support Audio DMAC peri peri driver
for Renesas R-Car Gen2 SoC, using 'shdma-base'
DMA driver framework.
Signed-off-by: Kuninori Morimoto
---
v2 -> v3
- remove error message when devm_kzalloc() was failed
drivers/dma/sh/Kconfig |6 +
drivers/dma/sh/Makefile|1 +
drivers/dma/sh/rcar-audmapp.c | 321
include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
4 files changed, 362 insertions(+)
create mode 100644 drivers/dma/sh/rcar-audmapp.c
create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index dadd9e01..b4c8138 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
help
Enable support for the Renesas R-Car series DMA controllers.
+config RCAR_AUDMAC_PP
+ tristate "Renesas R-Car Audio DMAC Peripheral Peripheral support"
+ depends on SH_DMAE_BASE
+ help
+ Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
controllers.
+
config SHDMA_R8A73A4
def_bool y
depends on ARCH_R8A73A4 && SH_DMAE != n
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index e856af2..1ce88b2 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -7,3 +7,4 @@ endif
shdma-objs := $(shdma-y)
obj-$(CONFIG_SUDMAC) += sudmac.o
obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
+obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
new file mode 100644
index 000..884ad3b80
--- /dev/null
+++ b/drivers/dma/sh/rcar-audmapp.c
@@ -0,0 +1,321 @@
+/*
+ * drivers/dma/sh/rcar-audmapp.c
+ *
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ * Copyright (C) 2013 Kuninori Morimoto
+ *
+ * based on the drivers/dma/sh/shdma.c
+ *
+ * Copyright (C) 2011-2012 Guennadi Liakhovetski
+ * Copyright (C) 2009 Nobuhiro Iwamatsu
+ * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/*
+ * DMA register
+ */
+#define PDMASAR0x00
+#define PDMADAR0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE(1 << 0)
+
+#define AUDMAPP_MAX_CHANNELS 29
+
+/* Default MEMCPY transfer size = 2^2 = 4 bytes */
+#define LOG2_DEFAULT_XFER_SIZE 2
+#define AUDMAPP_SLAVE_NUMBER 256
+#define AUDMAPP_LEN_MAX(16 * 1024 * 1024)
+
+struct audmapp_chan {
+ struct shdma_chan shdma_chan;
+ struct audmapp_slave_config *config;
+ void __iomem *base;
+};
+
+struct audmapp_device {
+ struct shdma_dev shdma_dev;
+ struct audmapp_pdata *pdata;
+ struct device *dev;
+ void __iomem *chan_reg;
+};
+
+#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
+#define to_dev(chan) container_of(chan->shdma_chan.dma_chan.device,\
+ struct audmapp_device, shdma_dev.dma_dev)
+
+static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
+{
+ struct audmapp_device *audev = to_dev(auchan);
+ struct device *dev = audev->dev;
+
+ dev_dbg(dev, "w %p : %08x\n", auchan->base + reg, data);
+
+ iowrite32(data, auchan->base + reg);
+}
+
+static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
+{
+ return ioread32(auchan->base + reg);
+}
+
+static void audmapp_halt(struct shdma_chan *schan)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ int i;
+
+ audmapp_write(auchan, 0, PDMACHCR);
+
+ for(i = 0; i < 1024; i++) {
+ if (0 == audmapp_read(auchan, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void audmapp_start_xfer(struct shdma_chan *schan,
+ struct shdma_desc *sdecs)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ struct audmapp_device *audev = to_dev(auchan);
+ struct audmapp_slave_config *cfg = auchan->config;
+ struct device *dev = audev->dev;
+ u32 chcr = cfg->chcr | PDMACHCR_DE;
+
+ dev_dbg(dev, "src/dst/chcr = %x/%x/%x\n",
+ cfg->src, cfg->dst, cfg->chcr);
+
+ audmapp_write(auchan, cfg->src, PDMASAR);
+ audmapp_write(auchan, cfg->dst, PDMADAR);
+ audmapp_write(auchan, chcr, PDMACHCR);
+}
+
+static struct audmapp_slave_config *
+audmapp_find_slave(struct audmapp_chan *auchan, int slave_id)
+{
+ struct audmapp_device
[PATCH v3] shdma: add R-Car Audio DMAC peri peri driver
From: Kuninori Morimoto kuninori.morimoto...@renesas.com
Add support Audio DMAC peri peri driver
for Renesas R-Car Gen2 SoC, using 'shdma-base'
DMA driver framework.
Signed-off-by: Kuninori Morimoto kuninori.morimoto...@renesas.com
---
v2 - v3
- remove error message when devm_kzalloc() was failed
drivers/dma/sh/Kconfig |6 +
drivers/dma/sh/Makefile|1 +
drivers/dma/sh/rcar-audmapp.c | 321
include/linux/platform_data/dma-rcar-audmapp.h | 34 +++
4 files changed, 362 insertions(+)
create mode 100644 drivers/dma/sh/rcar-audmapp.c
create mode 100644 include/linux/platform_data/dma-rcar-audmapp.h
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index dadd9e01..b4c8138 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -29,6 +29,12 @@ config RCAR_HPB_DMAE
help
Enable support for the Renesas R-Car series DMA controllers.
+config RCAR_AUDMAC_PP
+ tristate Renesas R-Car Audio DMAC Peripheral Peripheral support
+ depends on SH_DMAE_BASE
+ help
+ Enable support for the Renesas R-Car Audio DMAC Peripheral Peripheral
controllers.
+
config SHDMA_R8A73A4
def_bool y
depends on ARCH_R8A73A4 SH_DMAE != n
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index e856af2..1ce88b2 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -7,3 +7,4 @@ endif
shdma-objs := $(shdma-y)
obj-$(CONFIG_SUDMAC) += sudmac.o
obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
+obj-$(CONFIG_RCAR_AUDMAC_PP) += rcar-audmapp.o
diff --git a/drivers/dma/sh/rcar-audmapp.c b/drivers/dma/sh/rcar-audmapp.c
new file mode 100644
index 000..884ad3b80
--- /dev/null
+++ b/drivers/dma/sh/rcar-audmapp.c
@@ -0,0 +1,321 @@
+/*
+ * drivers/dma/sh/rcar-audmapp.c
+ *
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ * Copyright (C) 2013 Kuninori Morimoto kuninori.morimoto...@renesas.com
+ *
+ * based on the drivers/dma/sh/shdma.c
+ *
+ * Copyright (C) 2011-2012 Guennadi Liakhovetski g.liakhovet...@gmx.de
+ * Copyright (C) 2009 Nobuhiro Iwamatsu iwamatsu.nobuh...@renesas.com
+ * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include linux/delay.h
+#include linux/init.h
+#include linux/module.h
+#include linux/slab.h
+#include linux/dmaengine.h
+#include linux/platform_data/dma-rcar-audmapp.h
+#include linux/platform_device.h
+#include linux/shdma-base.h
+
+/*
+ * DMA register
+ */
+#define PDMASAR0x00
+#define PDMADAR0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE(1 0)
+
+#define AUDMAPP_MAX_CHANNELS 29
+
+/* Default MEMCPY transfer size = 2^2 = 4 bytes */
+#define LOG2_DEFAULT_XFER_SIZE 2
+#define AUDMAPP_SLAVE_NUMBER 256
+#define AUDMAPP_LEN_MAX(16 * 1024 * 1024)
+
+struct audmapp_chan {
+ struct shdma_chan shdma_chan;
+ struct audmapp_slave_config *config;
+ void __iomem *base;
+};
+
+struct audmapp_device {
+ struct shdma_dev shdma_dev;
+ struct audmapp_pdata *pdata;
+ struct device *dev;
+ void __iomem *chan_reg;
+};
+
+#define to_chan(chan) container_of(chan, struct audmapp_chan, shdma_chan)
+#define to_dev(chan) container_of(chan-shdma_chan.dma_chan.device,\
+ struct audmapp_device, shdma_dev.dma_dev)
+
+static void audmapp_write(struct audmapp_chan *auchan, u32 data, u32 reg)
+{
+ struct audmapp_device *audev = to_dev(auchan);
+ struct device *dev = audev-dev;
+
+ dev_dbg(dev, w %p : %08x\n, auchan-base + reg, data);
+
+ iowrite32(data, auchan-base + reg);
+}
+
+static u32 audmapp_read(struct audmapp_chan *auchan, u32 reg)
+{
+ return ioread32(auchan-base + reg);
+}
+
+static void audmapp_halt(struct shdma_chan *schan)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ int i;
+
+ audmapp_write(auchan, 0, PDMACHCR);
+
+ for(i = 0; i 1024; i++) {
+ if (0 == audmapp_read(auchan, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void audmapp_start_xfer(struct shdma_chan *schan,
+ struct shdma_desc *sdecs)
+{
+ struct audmapp_chan *auchan = to_chan(schan);
+ struct audmapp_device *audev = to_dev(auchan);
+ struct audmapp_slave_config *cfg = auchan-config;
+ struct device *dev = audev-dev;
+ u32 chcr = cfg-chcr | PDMACHCR_DE;
+
+ dev_dbg(dev, src/dst/chcr = %x/%x/%x\n,
+ cfg-src, cfg-dst, cfg-chcr);
+
+
