summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-davinci/include/mach/edma.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/edma.h')
-rw-r--r--arch/arm/mach-davinci/include/mach/edma.h267
1 files changed, 0 insertions, 267 deletions
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
OpenPOWER on IntegriCloud