RE: [PATCH v4 01/14] ARM: davinci: move private EDMA API toarm/common

From: Hebbar, Gururaja
Date: Fri Jan 11 2013 - 01:15:48 EST

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In reply to: Matt Porter: "[PATCH v4 01/14] ARM: davinci: move private EDMA API to arm/common"
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On Fri, Jan 11, 2013 at 11:18:37, Porter, Matt wrote:
> Move mach-davinci/dma.c to common/edma.c so it can be used
> by OMAP (specifically AM33xx) as well. This just moves the
> private EDMA API and enables it to build on OMAP.
>
> Signed-off-by: Matt Porter <mporter@xxxxxx>
> ---
> arch/arm/Kconfig | 1 +
> arch/arm/common/Kconfig | 3 +
> arch/arm/common/Makefile | 1 +
> arch/arm/{mach-davinci/dma.c => common/edma.c} | 2 +-
> arch/arm/mach-davinci/Makefile | 2 +-
> arch/arm/mach-davinci/board-tnetv107x-evm.c | 2 +-
> arch/arm/mach-davinci/davinci.h | 2 +-
> arch/arm/mach-davinci/devices-tnetv107x.c | 2 +-
> arch/arm/mach-davinci/devices.c | 7 +-
> arch/arm/mach-davinci/dm355.c | 2 +-
> arch/arm/mach-davinci/dm365.c | 2 +-
> arch/arm/mach-davinci/dm644x.c | 2 +-
> arch/arm/mach-davinci/dm646x.c | 2 +-
> arch/arm/mach-davinci/include/mach/da8xx.h | 2 +-
> arch/arm/mach-davinci/include/mach/edma.h | 267 ------------------------
> arch/arm/plat-omap/Kconfig | 1 +
> drivers/dma/edma.c | 2 +-
> drivers/mmc/host/davinci_mmc.c | 1 +
> include/linux/mfd/davinci_voicecodec.h | 3 +-
> include/linux/platform_data/edma.h | 182 ++++++++++++++++

Headers file are just moved here. So "git mv file1 flie2; and the git
format-patch -C" on commit should just generate few lines of patch.

> include/linux/platform_data/spi-davinci.h | 2 +-
> sound/soc/davinci/davinci-evm.c | 1 +
> sound/soc/davinci/davinci-pcm.c | 1 +
> sound/soc/davinci/davinci-pcm.h | 2 +-
> sound/soc/davinci/davinci-sffsdr.c | 6 +-
> 25 files changed, 212 insertions(+), 288 deletions(-)
> rename arch/arm/{mach-davinci/dma.c => common/edma.c} (99%)
> delete mode 100644 arch/arm/mach-davinci/include/mach/edma.h
> create mode 100644 include/linux/platform_data/edma.h
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 67874b8..7637d31 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -932,6 +932,7 @@ config ARCH_DAVINCI
> select GENERIC_IRQ_CHIP
> select HAVE_IDE
> select NEED_MACH_GPIO_H
> + select TI_PRIV_EDMA
> select USE_OF
> select ZONE_DMA
> help
> diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
> index 45ceeb0..9e32d0d 100644
> --- a/arch/arm/common/Kconfig
> +++ b/arch/arm/common/Kconfig
> @@ -40,3 +40,6 @@ config SHARP_PARAM
>
> config SHARP_SCOOP
> bool
> +
> +config TI_PRIV_EDMA
> + bool
> diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
> index e8a4e58..d09a39b 100644
> --- a/arch/arm/common/Makefile
> +++ b/arch/arm/common/Makefile
> @@ -13,3 +13,4 @@ obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o
> obj-$(CONFIG_SHARP_SCOOP) += scoop.o
> obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o
> obj-$(CONFIG_ARM_TIMER_SP804) += timer-sp.o
> +obj-$(CONFIG_TI_PRIV_EDMA) += edma.o
> diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/common/edma.c
> similarity index 99%
> rename from arch/arm/mach-davinci/dma.c
> rename to arch/arm/common/edma.c
> index a685e97..4411087 100644
> --- a/arch/arm/mach-davinci/dma.c
> +++ b/arch/arm/common/edma.c
> @@ -25,7 +25,7 @@
> #include <linux/io.h>
> #include <linux/slab.h>
>
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>
> /* Offsets matching "struct edmacc_param" */
> #define PARM_OPT 0x00
> diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
> index fb5c1aa..493a36b 100644
> --- a/arch/arm/mach-davinci/Makefile
> +++ b/arch/arm/mach-davinci/Makefile
> @@ -5,7 +5,7 @@
>
> # Common objects
> obj-y := time.o clock.o serial.o psc.o \
> - dma.o usb.o common.o sram.o aemif.o
> + usb.o common.o sram.o aemif.o
>
> obj-$(CONFIG_DAVINCI_MUX) += mux.o
>
> diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
> index be30997..86f55ba 100644
> --- a/arch/arm/mach-davinci/board-tnetv107x-evm.c
> +++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
> @@ -26,12 +26,12 @@
> #include <linux/input.h>
> #include <linux/input/matrix_keypad.h>
> #include <linux/spi/spi.h>
> +#include <linux/platform_data/edma.h>
>
> #include <asm/mach/arch.h>
> #include <asm/mach-types.h>
>
> #include <mach/irqs.h>
> -#include <mach/edma.h>
> #include <mach/mux.h>
> #include <mach/cp_intc.h>
> #include <mach/tnetv107x.h>
> diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
> index 12d544b..d26a6bc 100644
> --- a/arch/arm/mach-davinci/davinci.h
> +++ b/arch/arm/mach-davinci/davinci.h
> @@ -23,9 +23,9 @@
> #include <linux/platform_device.h>
> #include <linux/spi/spi.h>
> #include <linux/platform_data/davinci_asp.h>
> +#include <linux/platform_data/edma.h>
> #include <linux/platform_data/keyscan-davinci.h>
> #include <mach/hardware.h>
> -#include <mach/edma.h>
>
> #include <media/davinci/vpfe_capture.h>
> #include <media/davinci/vpif_types.h>
> diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
> index 773ab07..ba37760 100644
> --- a/arch/arm/mach-davinci/devices-tnetv107x.c
> +++ b/arch/arm/mach-davinci/devices-tnetv107x.c
> @@ -18,10 +18,10 @@
> #include <linux/dma-mapping.h>
> #include <linux/clk.h>
> #include <linux/slab.h>
> +#include <linux/platform_data/edma.h>
>
> #include <mach/common.h>
> #include <mach/irqs.h>
> -#include <mach/edma.h>
> #include <mach/tnetv107x.h>
>
> #include "clock.h"
> diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
> index 4c48a36..3bdf9f7 100644
> --- a/arch/arm/mach-davinci/devices.c
> +++ b/arch/arm/mach-davinci/devices.c
> @@ -19,9 +19,10 @@
> #include <mach/irqs.h>
> #include <mach/cputype.h>
> #include <mach/mux.h>
> -#include <mach/edma.h>
> #include <linux/platform_data/mmc-davinci.h>
> #include <mach/time.h>
> +#include <linux/platform_data/edma.h>
> +
>
> #include "davinci.h"
> #include "clock.h"
> @@ -141,10 +142,10 @@ static struct resource mmcsd0_resources[] = {
> },
> /* DMA channels: RX, then TX */
> {
> - .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
> + .start = EDMA_CTLR_CHAN(0, 26), /* MMCRXEVT */
> .flags = IORESOURCE_DMA,
> }, {
> - .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
> + .start = EDMA_CTLR_CHAN(0, 27), /* MMCTXEVT */
> .flags = IORESOURCE_DMA,
> },
> };
> diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
> index b49c3b7..53998d8 100644
> --- a/arch/arm/mach-davinci/dm355.c
> +++ b/arch/arm/mach-davinci/dm355.c
> @@ -19,7 +19,6 @@
> #include <asm/mach/map.h>
>
> #include <mach/cputype.h>
> -#include <mach/edma.h>
> #include <mach/psc.h>
> #include <mach/mux.h>
> #include <mach/irqs.h>
> @@ -28,6 +27,7 @@
> #include <mach/common.h>
> #include <linux/platform_data/spi-davinci.h>
> #include <mach/gpio-davinci.h>
> +#include <linux/platform_data/edma.h>
>
> #include "davinci.h"
> #include "clock.h"
> diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
> index 6c39805..9b41d33 100644
> --- a/arch/arm/mach-davinci/dm365.c
> +++ b/arch/arm/mach-davinci/dm365.c
> @@ -18,11 +18,11 @@
> #include <linux/platform_device.h>
> #include <linux/dma-mapping.h>
> #include <linux/spi/spi.h>
> +#include <linux/platform_data/edma.h>
>
> #include <asm/mach/map.h>
>
> #include <mach/cputype.h>
> -#include <mach/edma.h>
> #include <mach/psc.h>
> #include <mach/mux.h>
> #include <mach/irqs.h>
> diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
> index 11c79a3..a08910e 100644
> --- a/arch/arm/mach-davinci/dm644x.c
> +++ b/arch/arm/mach-davinci/dm644x.c
> @@ -12,11 +12,11 @@
> #include <linux/clk.h>
> #include <linux/serial_8250.h>
> #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>
> #include <asm/mach/map.h>
>
> #include <mach/cputype.h>
> -#include <mach/edma.h>
> #include <mach/irqs.h>
> #include <mach/psc.h>
> #include <mach/mux.h>
> diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
> index ac7b431..6d52a32 100644
> --- a/arch/arm/mach-davinci/dm646x.c
> +++ b/arch/arm/mach-davinci/dm646x.c
> @@ -13,11 +13,11 @@
> #include <linux/clk.h>
> #include <linux/serial_8250.h>
> #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
>
> #include <asm/mach/map.h>
>
> #include <mach/cputype.h>
> -#include <mach/edma.h>
> #include <mach/irqs.h>
> #include <mach/psc.h>
> #include <mach/mux.h>
> diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
> index 700d311..9d77f9b 100644
> --- a/arch/arm/mach-davinci/include/mach/da8xx.h
> +++ b/arch/arm/mach-davinci/include/mach/da8xx.h
> @@ -20,8 +20,8 @@
> #include <linux/videodev2.h>
>
> #include <mach/serial.h>
> -#include <mach/edma.h>
> #include <mach/pm.h>
> +#include <linux/platform_data/edma.h>
> #include <linux/platform_data/i2c-davinci.h>
> #include <linux/platform_data/mmc-davinci.h>
> #include <linux/platform_data/usb-davinci.h>
> diff --git a/arch/arm/mach-davinci/include/mach/edma.h b/arch/arm/mach-davinci/include/mach/edma.h
> deleted file mode 100644
> index 7e84c90..0000000
> --- a/arch/arm/mach-davinci/include/mach/edma.h
> +++ /dev/null
> @@ -1,267 +0,0 @@
> -/*
> - * TI DAVINCI dma definitions
> - *
> - * Copyright (C) 2006-2009 Texas Instruments.
> - *
> - * This program 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.
> - *
> - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
> - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
> - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
> - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
> - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
> - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
> - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> - *
> - * You should have received a copy of the GNU General Public License along
> - * with this program; if not, write to the Free Software Foundation, Inc.,
> - * 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - */
> -
> -/*
> - * This EDMA3 programming framework exposes two basic kinds of resource:
> - *
> - * Channel Triggers transfers, usually from a hardware event but
> - * also manually or by "chaining" from DMA completions.
> - * Each channel is coupled to a Parameter RAM (PaRAM) slot.
> - *
> - * Slot Each PaRAM slot holds a DMA transfer descriptor (PaRAM
> - * "set"), source and destination addresses, a link to a
> - * next PaRAM slot (if any), options for the transfer, and
> - * instructions for updating those addresses. There are
> - * more than twice as many slots as event channels.
> - *
> - * Each PaRAM set describes a sequence of transfers, either for one large
> - * buffer or for several discontiguous smaller buffers. An EDMA transfer
> - * is driven only from a channel, which performs the transfers specified
> - * in its PaRAM slot until there are no more transfers. When that last
> - * transfer completes, the "link" field may be used to reload the channel's
> - * PaRAM slot with a new transfer descriptor.
> - *
> - * The EDMA Channel Controller (CC) maps requests from channels into physical
> - * Transfer Controller (TC) requests when the channel triggers (by hardware
> - * or software events, or by chaining). The two physical DMA channels provided
> - * by the TCs are thus shared by many logical channels.
> - *
> - * DaVinci hardware also has a "QDMA" mechanism which is not currently
> - * supported through this interface. (DSP firmware uses it though.)
> - */
> -
> -#ifndef EDMA_H_
> -#define EDMA_H_
> -
> -/* PaRAM slots are laid out like this */
> -struct edmacc_param {
> - unsigned int opt;
> - unsigned int src;
> - unsigned int a_b_cnt;
> - unsigned int dst;
> - unsigned int src_dst_bidx;
> - unsigned int link_bcntrld;
> - unsigned int src_dst_cidx;
> - unsigned int ccnt;
> -};
> -
> -#define CCINT0_INTERRUPT 16
> -#define CCERRINT_INTERRUPT 17
> -#define TCERRINT0_INTERRUPT 18
> -#define TCERRINT1_INTERRUPT 19
> -
> -/* fields in edmacc_param.opt */
> -#define SAM BIT(0)
> -#define DAM BIT(1)
> -#define SYNCDIM BIT(2)
> -#define STATIC BIT(3)
> -#define EDMA_FWID (0x07 << 8)
> -#define TCCMODE BIT(11)
> -#define EDMA_TCC(t) ((t) << 12)
> -#define TCINTEN BIT(20)
> -#define ITCINTEN BIT(21)
> -#define TCCHEN BIT(22)
> -#define ITCCHEN BIT(23)
> -
> -#define TRWORD (0x7<<2)
> -#define PAENTRY (0x1ff<<5)
> -
> -/* Drivers should avoid using these symbolic names for dm644x
> - * channels, and use platform_device IORESOURCE_DMA resources
> - * instead. (Other DaVinci chips have different peripherals
> - * and thus have different DMA channel mappings.)
> - */
> -#define DAVINCI_DMA_MCBSP_TX 2
> -#define DAVINCI_DMA_MCBSP_RX 3
> -#define DAVINCI_DMA_VPSS_HIST 4
> -#define DAVINCI_DMA_VPSS_H3A 5
> -#define DAVINCI_DMA_VPSS_PRVU 6
> -#define DAVINCI_DMA_VPSS_RSZ 7
> -#define DAVINCI_DMA_IMCOP_IMXINT 8
> -#define DAVINCI_DMA_IMCOP_VLCDINT 9
> -#define DAVINCI_DMA_IMCO_PASQINT 10
> -#define DAVINCI_DMA_IMCOP_DSQINT 11
> -#define DAVINCI_DMA_SPI_SPIX 16
> -#define DAVINCI_DMA_SPI_SPIR 17
> -#define DAVINCI_DMA_UART0_URXEVT0 18
> -#define DAVINCI_DMA_UART0_UTXEVT0 19
> -#define DAVINCI_DMA_UART1_URXEVT1 20
> -#define DAVINCI_DMA_UART1_UTXEVT1 21
> -#define DAVINCI_DMA_UART2_URXEVT2 22
> -#define DAVINCI_DMA_UART2_UTXEVT2 23
> -#define DAVINCI_DMA_MEMSTK_MSEVT 24
> -#define DAVINCI_DMA_MMCRXEVT 26
> -#define DAVINCI_DMA_MMCTXEVT 27
> -#define DAVINCI_DMA_I2C_ICREVT 28
> -#define DAVINCI_DMA_I2C_ICXEVT 29
> -#define DAVINCI_DMA_GPIO_GPINT0 32
> -#define DAVINCI_DMA_GPIO_GPINT1 33
> -#define DAVINCI_DMA_GPIO_GPINT2 34
> -#define DAVINCI_DMA_GPIO_GPINT3 35
> -#define DAVINCI_DMA_GPIO_GPINT4 36
> -#define DAVINCI_DMA_GPIO_GPINT5 37
> -#define DAVINCI_DMA_GPIO_GPINT6 38
> -#define DAVINCI_DMA_GPIO_GPINT7 39
> -#define DAVINCI_DMA_GPIO_GPBNKINT0 40
> -#define DAVINCI_DMA_GPIO_GPBNKINT1 41
> -#define DAVINCI_DMA_GPIO_GPBNKINT2 42
> -#define DAVINCI_DMA_GPIO_GPBNKINT3 43
> -#define DAVINCI_DMA_GPIO_GPBNKINT4 44
> -#define DAVINCI_DMA_TIMER0_TINT0 48
> -#define DAVINCI_DMA_TIMER1_TINT1 49
> -#define DAVINCI_DMA_TIMER2_TINT2 50
> -#define DAVINCI_DMA_TIMER3_TINT3 51
> -#define DAVINCI_DMA_PWM0 52
> -#define DAVINCI_DMA_PWM1 53
> -#define DAVINCI_DMA_PWM2 54
> -
> -/* DA830 specific EDMA3 information */
> -#define EDMA_DA830_NUM_DMACH 32
> -#define EDMA_DA830_NUM_TCC 32
> -#define EDMA_DA830_NUM_PARAMENTRY 128
> -#define EDMA_DA830_NUM_EVQUE 2
> -#define EDMA_DA830_NUM_TC 2
> -#define EDMA_DA830_CHMAP_EXIST 0
> -#define EDMA_DA830_NUM_REGIONS 4
> -#define DA830_DMACH2EVENT_MAP0 0x000FC03Fu
> -#define DA830_DMACH2EVENT_MAP1 0x00000000u
> -#define DA830_EDMA_ARM_OWN 0x30FFCCFFu
> -
> -/*ch_status paramater of callback function possible values*/
> -#define DMA_COMPLETE 1
> -#define DMA_CC_ERROR 2
> -#define DMA_TC1_ERROR 3
> -#define DMA_TC2_ERROR 4
> -
> -enum address_mode {
> - INCR = 0,
> - FIFO = 1
> -};
> -
> -enum fifo_width {
> - W8BIT = 0,
> - W16BIT = 1,
> - W32BIT = 2,
> - W64BIT = 3,
> - W128BIT = 4,
> - W256BIT = 5
> -};
> -
> -enum dma_event_q {
> - EVENTQ_0 = 0,
> - EVENTQ_1 = 1,
> - EVENTQ_2 = 2,
> - EVENTQ_3 = 3,
> - EVENTQ_DEFAULT = -1
> -};
> -
> -enum sync_dimension {
> - ASYNC = 0,
> - ABSYNC = 1
> -};
> -
> -#define EDMA_CTLR_CHAN(ctlr, chan) (((ctlr) << 16) | (chan))
> -#define EDMA_CTLR(i) ((i) >> 16)
> -#define EDMA_CHAN_SLOT(i) ((i) & 0xffff)
> -
> -#define EDMA_CHANNEL_ANY -1 /* for edma_alloc_channel() */
> -#define EDMA_SLOT_ANY -1 /* for edma_alloc_slot() */
> -#define EDMA_CONT_PARAMS_ANY 1001
> -#define EDMA_CONT_PARAMS_FIXED_EXACT 1002
> -#define EDMA_CONT_PARAMS_FIXED_NOT_EXACT 1003
> -
> -#define EDMA_MAX_CC 2
> -
> -/* alloc/free DMA channels and their dedicated parameter RAM slots */
> -int edma_alloc_channel(int channel,
> - void (*callback)(unsigned channel, u16 ch_status, void *data),
> - void *data, enum dma_event_q);
> -void edma_free_channel(unsigned channel);
> -
> -/* alloc/free parameter RAM slots */
> -int edma_alloc_slot(unsigned ctlr, int slot);
> -void edma_free_slot(unsigned slot);
> -
> -/* alloc/free a set of contiguous parameter RAM slots */
> -int edma_alloc_cont_slots(unsigned ctlr, unsigned int id, int slot, int count);
> -int edma_free_cont_slots(unsigned slot, int count);
> -
> -/* calls that operate on part of a parameter RAM slot */
> -void edma_set_src(unsigned slot, dma_addr_t src_port,
> - enum address_mode mode, enum fifo_width);
> -void edma_set_dest(unsigned slot, dma_addr_t dest_port,
> - enum address_mode mode, enum fifo_width);
> -void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst);
> -void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx);
> -void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx);
> -void edma_set_transfer_params(unsigned slot, u16 acnt, u16 bcnt, u16 ccnt,
> - u16 bcnt_rld, enum sync_dimension sync_mode);
> -void edma_link(unsigned from, unsigned to);
> -void edma_unlink(unsigned from);
> -
> -/* calls that operate on an entire parameter RAM slot */
> -void edma_write_slot(unsigned slot, const struct edmacc_param *params);
> -void edma_read_slot(unsigned slot, struct edmacc_param *params);
> -
> -/* channel control operations */
> -int edma_start(unsigned channel);
> -void edma_stop(unsigned channel);
> -void edma_clean_channel(unsigned channel);
> -void edma_clear_event(unsigned channel);
> -void edma_pause(unsigned channel);
> -void edma_resume(unsigned channel);
> -
> -struct edma_rsv_info {
> -
> - const s16 (*rsv_chans)[2];
> - const s16 (*rsv_slots)[2];
> -};
> -
> -/* platform_data for EDMA driver */
> -struct edma_soc_info {
> -
> - /* how many dma resources of each type */
> - unsigned n_channel;
> - unsigned n_region;
> - unsigned n_slot;
> - unsigned n_tc;
> - unsigned n_cc;
> - /*
> - * Default queue is expected to be a low-priority queue.
> - * This way, long transfers on the default queue started
> - * by the codec engine will not cause audio defects.
> - */
> - enum dma_event_q default_queue;
> -
> - /* Resource reservation for other cores */
> - struct edma_rsv_info *rsv;
> -
> - const s8 (*queue_tc_mapping)[2];
> - const s8 (*queue_priority_mapping)[2];
> -};
> -
> -#endif
> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
> index 665870d..0b81d6c 100644
> --- a/arch/arm/plat-omap/Kconfig
> +++ b/arch/arm/plat-omap/Kconfig
> @@ -29,6 +29,7 @@ config ARCH_OMAP2PLUS
> select PINCTRL
> select PROC_DEVICETREE if PROC_FS
> select SPARSE_IRQ
> + select TI_PRIV_EDMA
> select USE_OF
> help
> "Systems based on OMAP2, OMAP3, OMAP4 or OMAP5"
> diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
> index 023c8f2..e57cce3 100644
> --- a/drivers/dma/edma.c
> +++ b/drivers/dma/edma.c
> @@ -24,7 +24,7 @@
> #include <linux/slab.h>
> #include <linux/spinlock.h>
>
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>
> #include "dmaengine.h"
> #include "virt-dma.h"
> diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
> index 17e186d..d1efacc 100644
> --- a/drivers/mmc/host/davinci_mmc.c
> +++ b/drivers/mmc/host/davinci_mmc.c
> @@ -35,6 +35,7 @@
> #include <linux/edma.h>
> #include <linux/mmc/mmc.h>
>
> +#include <linux/platform_data/edma.h>
> #include <linux/platform_data/mmc-davinci.h>
>
> /*
> diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h
> index 0ab6132..7dd6524 100644
> --- a/include/linux/mfd/davinci_voicecodec.h
> +++ b/include/linux/mfd/davinci_voicecodec.h
> @@ -26,8 +26,7 @@
> #include <linux/kernel.h>
> #include <linux/platform_device.h>
> #include <linux/mfd/core.h>
> -
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>
> /*
> * Register values.
> diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
> new file mode 100644
> index 0000000..2344ea2
> --- /dev/null
> +++ b/include/linux/platform_data/edma.h
> @@ -0,0 +1,182 @@
> +/*
> + * TI EDMA definitions
> + *
> + * Copyright (C) 2006-2013 Texas Instruments.
> + *
> + * This program 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.
> + */
> +
> +/*
> + * This EDMA3 programming framework exposes two basic kinds of resource:
> + *
> + * Channel Triggers transfers, usually from a hardware event but
> + * also manually or by "chaining" from DMA completions.
> + * Each channel is coupled to a Parameter RAM (PaRAM) slot.
> + *
> + * Slot Each PaRAM slot holds a DMA transfer descriptor (PaRAM
> + * "set"), source and destination addresses, a link to a
> + * next PaRAM slot (if any), options for the transfer, and
> + * instructions for updating those addresses. There are
> + * more than twice as many slots as event channels.
> + *
> + * Each PaRAM set describes a sequence of transfers, either for one large
> + * buffer or for several discontiguous smaller buffers. An EDMA transfer
> + * is driven only from a channel, which performs the transfers specified
> + * in its PaRAM slot until there are no more transfers. When that last
> + * transfer completes, the "link" field may be used to reload the channel's
> + * PaRAM slot with a new transfer descriptor.
> + *
> + * The EDMA Channel Controller (CC) maps requests from channels into physical
> + * Transfer Controller (TC) requests when the channel triggers (by hardware
> + * or software events, or by chaining). The two physical DMA channels provided
> + * by the TCs are thus shared by many logical channels.
> + *
> + * DaVinci hardware also has a "QDMA" mechanism which is not currently
> + * supported through this interface. (DSP firmware uses it though.)
> + */
> +
> +#ifndef EDMA_H_
> +#define EDMA_H_
> +
> +/* PaRAM slots are laid out like this */
> +struct edmacc_param {
> + unsigned int opt;
> + unsigned int src;
> + unsigned int a_b_cnt;
> + unsigned int dst;
> + unsigned int src_dst_bidx;
> + unsigned int link_bcntrld;
> + unsigned int src_dst_cidx;
> + unsigned int ccnt;
> +};
> +
> +/* fields in edmacc_param.opt */
> +#define SAM BIT(0)
> +#define DAM BIT(1)
> +#define SYNCDIM BIT(2)
> +#define STATIC BIT(3)
> +#define EDMA_FWID (0x07 << 8)
> +#define TCCMODE BIT(11)
> +#define EDMA_TCC(t) ((t) << 12)
> +#define TCINTEN BIT(20)
> +#define ITCINTEN BIT(21)
> +#define TCCHEN BIT(22)
> +#define ITCCHEN BIT(23)
> +
> +/*ch_status paramater of callback function possible values*/
> +#define DMA_COMPLETE 1
> +#define DMA_CC_ERROR 2
> +#define DMA_TC1_ERROR 3
> +#define DMA_TC2_ERROR 4
> +
> +enum address_mode {
> + INCR = 0,
> + FIFO = 1
> +};
> +
> +enum fifo_width {
> + W8BIT = 0,
> + W16BIT = 1,
> + W32BIT = 2,
> + W64BIT = 3,
> + W128BIT = 4,
> + W256BIT = 5
> +};
> +
> +enum dma_event_q {
> + EVENTQ_0 = 0,
> + EVENTQ_1 = 1,
> + EVENTQ_2 = 2,
> + EVENTQ_3 = 3,
> + EVENTQ_DEFAULT = -1
> +};
> +
> +enum sync_dimension {
> + ASYNC = 0,
> + ABSYNC = 1
> +};
> +
> +#define EDMA_CTLR_CHAN(ctlr, chan) (((ctlr) << 16) | (chan))
> +#define EDMA_CTLR(i) ((i) >> 16)
> +#define EDMA_CHAN_SLOT(i) ((i) & 0xffff)
> +
> +#define EDMA_CHANNEL_ANY -1 /* for edma_alloc_channel() */
> +#define EDMA_SLOT_ANY -1 /* for edma_alloc_slot() */
> +#define EDMA_CONT_PARAMS_ANY 1001
> +#define EDMA_CONT_PARAMS_FIXED_EXACT 1002
> +#define EDMA_CONT_PARAMS_FIXED_NOT_EXACT 1003
> +
> +#define EDMA_MAX_CC 2
> +
> +/* alloc/free DMA channels and their dedicated parameter RAM slots */
> +int edma_alloc_channel(int channel,
> + void (*callback)(unsigned channel, u16 ch_status, void *data),
> + void *data, enum dma_event_q);
> +void edma_free_channel(unsigned channel);
> +
> +/* alloc/free parameter RAM slots */
> +int edma_alloc_slot(unsigned ctlr, int slot);
> +void edma_free_slot(unsigned slot);
> +
> +/* alloc/free a set of contiguous parameter RAM slots */
> +int edma_alloc_cont_slots(unsigned ctlr, unsigned int id, int slot, int count);
> +int edma_free_cont_slots(unsigned slot, int count);
> +
> +/* calls that operate on part of a parameter RAM slot */
> +void edma_set_src(unsigned slot, dma_addr_t src_port,
> + enum address_mode mode, enum fifo_width);
> +void edma_set_dest(unsigned slot, dma_addr_t dest_port,
> + enum address_mode mode, enum fifo_width);
> +void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst);
> +void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx);
> +void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx);
> +void edma_set_transfer_params(unsigned slot, u16 acnt, u16 bcnt, u16 ccnt,
> + u16 bcnt_rld, enum sync_dimension sync_mode);
> +void edma_link(unsigned from, unsigned to);
> +void edma_unlink(unsigned from);
> +
> +/* calls that operate on an entire parameter RAM slot */
> +void edma_write_slot(unsigned slot, const struct edmacc_param *params);
> +void edma_read_slot(unsigned slot, struct edmacc_param *params);
> +
> +/* channel control operations */
> +int edma_start(unsigned channel);
> +void edma_stop(unsigned channel);
> +void edma_clean_channel(unsigned channel);
> +void edma_clear_event(unsigned channel);
> +void edma_pause(unsigned channel);
> +void edma_resume(unsigned channel);
> +
> +struct edma_rsv_info {
> +
> + const s16 (*rsv_chans)[2];
> + const s16 (*rsv_slots)[2];
> +};
> +
> +/* platform_data for EDMA driver */
> +struct edma_soc_info {
> +
> + /* how many dma resources of each type */
> + unsigned n_channel;
> + unsigned n_region;
> + unsigned n_slot;
> + unsigned n_tc;
> + unsigned n_cc;
> + /*
> + * Default queue is expected to be a low-priority queue.
> + * This way, long transfers on the default queue started
> + * by the codec engine will not cause audio defects.
> + */
> + enum dma_event_q default_queue;
> +
> + /* Resource reservation for other cores */
> + struct edma_rsv_info *rsv;
> +
> + const s8 (*queue_tc_mapping)[2];
> + const s8 (*queue_priority_mapping)[2];
> +};
> +
> +#endif
> diff --git a/include/linux/platform_data/spi-davinci.h b/include/linux/platform_data/spi-davinci.h
> index 7af305b..8dc2fa47 100644
> --- a/include/linux/platform_data/spi-davinci.h
> +++ b/include/linux/platform_data/spi-davinci.h
> @@ -19,7 +19,7 @@
> #ifndef __ARCH_ARM_DAVINCI_SPI_H
> #define __ARCH_ARM_DAVINCI_SPI_H
>
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>
> #define SPI_INTERN_CS 0xFF
>
> diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
> index d55e647..591f547 100644
> --- a/sound/soc/davinci/davinci-evm.c
> +++ b/sound/soc/davinci/davinci-evm.c
> @@ -14,6 +14,7 @@
> #include <linux/timer.h>
> #include <linux/interrupt.h>
> #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
> #include <linux/i2c.h>
> #include <sound/core.h>
> #include <sound/pcm.h>
> diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
> index afab81f..9bdd71b 100644
> --- a/sound/soc/davinci/davinci-pcm.c
> +++ b/sound/soc/davinci/davinci-pcm.c
> @@ -17,6 +17,7 @@
> #include <linux/dma-mapping.h>
> #include <linux/kernel.h>
> #include <linux/genalloc.h>
> +#include <linux/platform_data/edma.h>
>
> #include <sound/core.h>
> #include <sound/pcm.h>
> diff --git a/sound/soc/davinci/davinci-pcm.h b/sound/soc/davinci/davinci-pcm.h
> index b6ef703..fbb710c 100644
> --- a/sound/soc/davinci/davinci-pcm.h
> +++ b/sound/soc/davinci/davinci-pcm.h
> @@ -14,7 +14,7 @@
>
> #include <linux/genalloc.h>
> #include <linux/platform_data/davinci_asp.h>
> -#include <mach/edma.h>
> +#include <linux/platform_data/edma.h>
>
> struct davinci_pcm_dma_params {
> int channel; /* sync dma channel ID */
> diff --git a/sound/soc/davinci/davinci-sffsdr.c b/sound/soc/davinci/davinci-sffsdr.c
> index 5be65aa..074fc5d 100644
> --- a/sound/soc/davinci/davinci-sffsdr.c
> +++ b/sound/soc/davinci/davinci-sffsdr.c
> @@ -17,6 +17,7 @@
> #include <linux/timer.h>
> #include <linux/interrupt.h>
> #include <linux/platform_device.h>
> +#include <linux/platform_data/edma.h>
> #include <linux/gpio.h>
> #include <sound/core.h>
> #include <sound/pcm.h>
> @@ -28,7 +29,6 @@
> #include <asm/plat-sffsdr/sffsdr-fpga.h>
> #endif
>
> -#include <mach/edma.h>
>
> #include "../codecs/pcm3008.h"
> #include "davinci-pcm.h"
> @@ -123,8 +123,8 @@ static struct resource sffsdr_snd_resources[] = {
> };
>
> static struct evm_snd_platform_data sffsdr_snd_data = {
> - .tx_dma_ch = DAVINCI_DMA_MCBSP_TX,
> - .rx_dma_ch = DAVINCI_DMA_MCBSP_RX,
> + .tx_dma_ch = 2, /* MCBSP_TX */
> + .rx_dma_ch = 3, /* MCBSP_RX */
> };
>
> static struct platform_device *sffsdr_snd_device;
> --
> 1.7.9.5
>
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@xxxxxxxxxxxxxxxxxxxx
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>

Regards,
Gururaja
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