include/linux/platform_data/ is not a correct place to keep the API definitions for edma, it is meant to be only for the pdata for the device. Clean up this by moving the API to include/linux/edma.h
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- arch/arm/common/edma.c | 3 +- arch/arm/mach-davinci/devices.c | 1 + arch/arm/mach-davinci/include/mach/da8xx.h | 1 + drivers/dma/edma.c | 2 +- include/linux/edma.h | 153 +++++++++++++++++++++++++++++ include/linux/platform_data/edma.h | 148 ++-------------------------- sound/soc/davinci/davinci-pcm.h | 1 + 7 files changed, 165 insertions(+), 144 deletions(-) create mode 100644 include/linux/edma.h
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index bac677e65c76..6c49887d326e 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -25,6 +25,7 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/edma.h> #include <linux/edma-dmaengine.h> #include <linux/dma-mapping.h> #include <linux/of_address.h> @@ -33,8 +34,6 @@ #include <linux/of_irq.h> #include <linux/pm_runtime.h>
-#include <linux/platform_data/edma.h> - /* Offsets matching "struct edmacc_param" */ #define PARM_OPT 0x00 #define PARM_SRC 0x04 diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c index 6257aa452568..28572ef24d9c 100644 --- a/arch/arm/mach-davinci/devices.c +++ b/arch/arm/mach-davinci/devices.c @@ -23,6 +23,7 @@ #include <linux/platform_data/mmc-davinci.h> #include <mach/time.h> #include <linux/platform_data/edma.h> +#include <linux/edma.h>
#include "davinci.h" diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 39e58b48e826..313129cb6f4a 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -23,6 +23,7 @@ #include <mach/serial.h> #include <mach/pm.h> #include <linux/platform_data/edma.h> +#include <linux/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/drivers/dma/edma.c b/drivers/dma/edma.c index 8880d6977e5d..126048e79dfc 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -25,7 +25,7 @@ #include <linux/spinlock.h> #include <linux/of.h>
-#include <linux/platform_data/edma.h> +#include <linux/edma.h>
#include "dmaengine.h" #include "virt-dma.h" diff --git a/include/linux/edma.h b/include/linux/edma.h new file mode 100644 index 000000000000..9df92198c117 --- /dev/null +++ b/include/linux/edma.h @@ -0,0 +1,153 @@ +/* + * 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 version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +/* + * 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 __LINUX_EDMA_H_ +#define __LINUX_EDMA_H_ + +#include <linux/platform_data/edma.h> + +/* PaRAM slots are laid out like this */ +struct edmacc_param { + u32 opt; + u32 src; + u32 a_b_cnt; + u32 dst; + u32 src_dst_bidx; + u32 link_bcntrld; + u32 src_dst_cidx; + u32 ccnt; +} __packed; + +/* 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 parameter of callback function possible values*/ +#define EDMA_DMA_COMPLETE 1 +#define EDMA_DMA_CC_ERROR 2 +#define EDMA_DMA_TC1_ERROR 3 +#define EDMA_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 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 + +/* 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); +dma_addr_t edma_get_position(unsigned slot, bool 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); + +void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no); + +int edma_trigger_channel(unsigned); + +#endif /* __LINUX_EDMA_H_ */ diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h index bdb2710e2aab..aaf6fc5769eb 100644 --- a/include/linux/platform_data/edma.h +++ b/include/linux/platform_data/edma.h @@ -8,83 +8,10 @@ * 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 { - u32 opt; - u32 src; - u32 a_b_cnt; - u32 dst; - u32 src_dst_bidx; - u32 link_bcntrld; - u32 src_dst_cidx; - u32 ccnt; -} __packed; - -/* 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 EDMA_DMA_COMPLETE 1 -#define EDMA_DMA_CC_ERROR 2 -#define EDMA_DMA_TC1_ERROR 3 -#define EDMA_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 -}; +#define EDMA_MAX_CC 2
enum dma_event_q { EVENTQ_0 = 0, @@ -94,68 +21,9 @@ enum dma_event_q { 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); -dma_addr_t edma_get_position(unsigned slot, bool 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); - -void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no); - struct edma_rsv_info { - - const s16 (*rsv_chans)[2]; - const s16 (*rsv_slots)[2]; + const s16 (*rsv_chans)[2]; + const s16 (*rsv_slots)[2]; };
/* platform_data for EDMA driver */ @@ -165,15 +33,13 @@ struct edma_soc_info { * This way, long transfers on the default queue started * by the codec engine will not cause audio defects. */ - enum dma_event_q default_queue; + enum dma_event_q default_queue;
/* Resource reservation for other cores */ - struct edma_rsv_info *rsv; + struct edma_rsv_info *rsv;
- s8 (*queue_priority_mapping)[2]; - const s16 (*xbar_chans)[2]; + s8 (*queue_priority_mapping)[2]; + const s16 (*xbar_chans)[2]; };
-int edma_trigger_channel(unsigned); - #endif diff --git a/sound/soc/davinci/davinci-pcm.h b/sound/soc/davinci/davinci-pcm.h index 0fe2346a9aa2..ddc07de04067 100644 --- a/sound/soc/davinci/davinci-pcm.h +++ b/sound/soc/davinci/davinci-pcm.h @@ -15,6 +15,7 @@ #include <linux/genalloc.h> #include <linux/platform_data/davinci_asp.h> #include <linux/platform_data/edma.h> +#include <linux/edma.h>
struct davinci_pcm_dma_params { int channel; /* sync dma channel ID */