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Diffstat (limited to 'include/asm-mips/mach-au1x00/au1xxx_dbdma.h')
| -rw-r--r-- | include/asm-mips/mach-au1x00/au1xxx_dbdma.h | 386 |
1 files changed, 0 insertions, 386 deletions
diff --git a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h b/include/asm-mips/mach-au1x00/au1xxx_dbdma.h deleted file mode 100644 index 44a67bf05dc1..000000000000 --- a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h +++ /dev/null @@ -1,386 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * Include file for Alchemy Semiconductor's Au1550 Descriptor - * Based DMA Controller. - * - * Copyright 2004 Embedded Edge, LLC - * dan@embeddededge.com - * - * 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. - */ - -/* - * Specifics for the Au1xxx Descriptor-Based DMA Controller, - * first seen in the AU1550 part. - */ -#ifndef _AU1000_DBDMA_H_ -#define _AU1000_DBDMA_H_ - -#ifndef _LANGUAGE_ASSEMBLY - -/* - * The DMA base addresses. - * The channels are every 256 bytes (0x0100) from the channel 0 base. - * Interrupt status/enable is bits 15:0 for channels 15 to zero. - */ -#define DDMA_GLOBAL_BASE 0xb4003000 -#define DDMA_CHANNEL_BASE 0xb4002000 - -typedef volatile struct dbdma_global { - u32 ddma_config; - u32 ddma_intstat; - u32 ddma_throttle; - u32 ddma_inten; -} dbdma_global_t; - -/* General Configuration. */ -#define DDMA_CONFIG_AF (1 << 2) -#define DDMA_CONFIG_AH (1 << 1) -#define DDMA_CONFIG_AL (1 << 0) - -#define DDMA_THROTTLE_EN (1 << 31) - -/* The structure of a DMA Channel. */ -typedef volatile struct au1xxx_dma_channel { - u32 ddma_cfg; /* See below */ - u32 ddma_desptr; /* 32-byte aligned pointer to descriptor */ - u32 ddma_statptr; /* word aligned pointer to status word */ - u32 ddma_dbell; /* A write activates channel operation */ - u32 ddma_irq; /* If bit 0 set, interrupt pending */ - u32 ddma_stat; /* See below */ - u32 ddma_bytecnt; /* Byte count, valid only when chan idle */ - /* Remainder, up to the 256 byte boundary, is reserved. */ -} au1x_dma_chan_t; - -#define DDMA_CFG_SED (1 << 9) /* source DMA level/edge detect */ -#define DDMA_CFG_SP (1 << 8) /* source DMA polarity */ -#define DDMA_CFG_DED (1 << 7) /* destination DMA level/edge detect */ -#define DDMA_CFG_DP (1 << 6) /* destination DMA polarity */ -#define DDMA_CFG_SYNC (1 << 5) /* Sync static bus controller */ -#define DDMA_CFG_PPR (1 << 4) /* PCI posted read/write control */ -#define DDMA_CFG_DFN (1 << 3) /* Descriptor fetch non-coherent */ -#define DDMA_CFG_SBE (1 << 2) /* Source big endian */ -#define DDMA_CFG_DBE (1 << 1) /* Destination big endian */ -#define DDMA_CFG_EN (1 << 0) /* Channel enable */ - -/* - * Always set when descriptor processing done, regardless of - * interrupt enable state. Reflected in global intstat, don't - * clear this until global intstat is read/used. - */ -#define DDMA_IRQ_IN (1 << 0) - -#define DDMA_STAT_DB (1 << 2) /* Doorbell pushed */ -#define DDMA_STAT_V (1 << 1) /* Descriptor valid */ -#define DDMA_STAT_H (1 << 0) /* Channel Halted */ - -/* - * "Standard" DDMA Descriptor. - * Must be 32-byte aligned. - */ -typedef volatile struct au1xxx_ddma_desc { - u32 dscr_cmd0; /* See below */ - u32 dscr_cmd1; /* See below */ - u32 dscr_source0; /* source phys address */ - u32 dscr_source1; /* See below */ - u32 dscr_dest0; /* Destination address */ - u32 dscr_dest1; /* See below */ - u32 dscr_stat; /* completion status */ - u32 dscr_nxtptr; /* Next descriptor pointer (mostly) */ - /* - * First 32 bytes are HW specific!!! - * Lets have some SW data following -- make sure it's 32 bytes. - */ - u32 sw_status; - u32 sw_context; - u32 sw_reserved[6]; -} au1x_ddma_desc_t; - -#define DSCR_CMD0_V (1 << 31) /* Descriptor valid */ -#define DSCR_CMD0_MEM (1 << 30) /* mem-mem transfer */ -#define DSCR_CMD0_SID_MASK (0x1f << 25) /* Source ID */ -#define DSCR_CMD0_DID_MASK (0x1f << 20) /* Destination ID */ -#define DSCR_CMD0_SW_MASK (0x3 << 18) /* Source Width */ -#define DSCR_CMD0_DW_MASK (0x3 << 16) /* Destination Width */ -#define DSCR_CMD0_ARB (0x1 << 15) /* Set for Hi Pri */ -#define DSCR_CMD0_DT_MASK (0x3 << 13) /* Descriptor Type */ -#define DSCR_CMD0_SN (0x1 << 12) /* Source non-coherent */ -#define DSCR_CMD0_DN (0x1 << 11) /* Destination non-coherent */ -#define DSCR_CMD0_SM (0x1 << 10) /* Stride mode */ -#define DSCR_CMD0_IE (0x1 << 8) /* Interrupt Enable */ -#define DSCR_CMD0_SP (0x1 << 4) /* Status pointer select */ -#define DSCR_CMD0_CV (0x1 << 2) /* Clear Valid when done */ -#define DSCR_CMD0_ST_MASK (0x3 << 0) /* Status instruction */ - -#define SW_STATUS_INUSE (1 << 0) - -/* Command 0 device IDs. */ -#ifdef CONFIG_SOC_AU1550 -#define DSCR_CMD0_UART0_TX 0 -#define DSCR_CMD0_UART0_RX 1 -#define DSCR_CMD0_UART3_TX 2 -#define DSCR_CMD0_UART3_RX 3 -#define DSCR_CMD0_DMA_REQ0 4 -#define DSCR_CMD0_DMA_REQ1 5 -#define DSCR_CMD0_DMA_REQ2 6 -#define DSCR_CMD0_DMA_REQ3 7 -#define DSCR_CMD0_USBDEV_RX0 8 -#define DSCR_CMD0_USBDEV_TX0 9 -#define DSCR_CMD0_USBDEV_TX1 10 -#define DSCR_CMD0_USBDEV_TX2 11 -#define DSCR_CMD0_USBDEV_RX3 12 -#define DSCR_CMD0_USBDEV_RX4 13 -#define DSCR_CMD0_PSC0_TX 14 -#define DSCR_CMD0_PSC0_RX 15 -#define DSCR_CMD0_PSC1_TX 16 -#define DSCR_CMD0_PSC1_RX 17 -#define DSCR_CMD0_PSC2_TX 18 -#define DSCR_CMD0_PSC2_RX 19 -#define DSCR_CMD0_PSC3_TX 20 -#define DSCR_CMD0_PSC3_RX 21 -#define DSCR_CMD0_PCI_WRITE 22 -#define DSCR_CMD0_NAND_FLASH 23 -#define DSCR_CMD0_MAC0_RX 24 -#define DSCR_CMD0_MAC0_TX 25 -#define DSCR_CMD0_MAC1_RX 26 -#define DSCR_CMD0_MAC1_TX 27 -#endif /* CONFIG_SOC_AU1550 */ - -#ifdef CONFIG_SOC_AU1200 -#define DSCR_CMD0_UART0_TX 0 -#define DSCR_CMD0_UART0_RX 1 -#define DSCR_CMD0_UART1_TX 2 -#define DSCR_CMD0_UART1_RX 3 -#define DSCR_CMD0_DMA_REQ0 4 -#define DSCR_CMD0_DMA_REQ1 5 -#define DSCR_CMD0_MAE_BE 6 -#define DSCR_CMD0_MAE_FE 7 -#define DSCR_CMD0_SDMS_TX0 8 -#define DSCR_CMD0_SDMS_RX0 9 -#define DSCR_CMD0_SDMS_TX1 10 -#define DSCR_CMD0_SDMS_RX1 11 -#define DSCR_CMD0_AES_TX 13 -#define DSCR_CMD0_AES_RX 12 -#define DSCR_CMD0_PSC0_TX 14 -#define DSCR_CMD0_PSC0_RX 15 -#define DSCR_CMD0_PSC1_TX 16 -#define DSCR_CMD0_PSC1_RX 17 -#define DSCR_CMD0_CIM_RXA 18 -#define DSCR_CMD0_CIM_RXB 19 -#define DSCR_CMD0_CIM_RXC 20 -#define DSCR_CMD0_MAE_BOTH 21 -#define DSCR_CMD0_LCD 22 -#define DSCR_CMD0_NAND_FLASH 23 -#define DSCR_CMD0_PSC0_SYNC 24 -#define DSCR_CMD0_PSC1_SYNC 25 -#define DSCR_CMD0_CIM_SYNC 26 -#endif /* CONFIG_SOC_AU1200 */ - -#define DSCR_CMD0_THROTTLE 30 -#define DSCR_CMD0_ALWAYS 31 -#define DSCR_NDEV_IDS 32 -/* This macro is used to find/create custom device types */ -#define DSCR_DEV2CUSTOM_ID(x, d) (((((x) & 0xFFFF) << 8) | 0x32000000) | \ - ((d) & 0xFF)) -#define DSCR_CUSTOM2DEV_ID(x) ((x) & 0xFF) - -#define DSCR_CMD0_SID(x) (((x) & 0x1f) << 25) -#define DSCR_CMD0_DID(x) (((x) & 0x1f) << 20) - -/* Source/Destination transfer width. */ -#define DSCR_CMD0_BYTE 0 -#define DSCR_CMD0_HALFWORD 1 -#define DSCR_CMD0_WORD 2 - -#define DSCR_CMD0_SW(x) (((x) & 0x3) << 18) -#define DSCR_CMD0_DW(x) (((x) & 0x3) << 16) - -/* DDMA Descriptor Type. */ -#define DSCR_CMD0_STANDARD 0 -#define DSCR_CMD0_LITERAL 1 -#define DSCR_CMD0_CMP_BRANCH 2 - -#define DSCR_CMD0_DT(x) (((x) & 0x3) << 13) - -/* Status Instruction. */ -#define DSCR_CMD0_ST_NOCHANGE 0 /* Don't change */ -#define DSCR_CMD0_ST_CURRENT 1 /* Write current status */ -#define DSCR_CMD0_ST_CMD0 2 /* Write cmd0 with V cleared */ -#define DSCR_CMD0_ST_BYTECNT 3 /* Write remaining byte count */ - -#define DSCR_CMD0_ST(x) (((x) & 0x3) << 0) - -/* Descriptor Command 1. */ -#define DSCR_CMD1_SUPTR_MASK (0xf << 28) /* upper 4 bits of src addr */ -#define DSCR_CMD1_DUPTR_MASK (0xf << 24) /* upper 4 bits of dest addr */ -#define DSCR_CMD1_FL_MASK (0x3 << 22) /* Flag bits */ -#define DSCR_CMD1_BC_MASK (0x3fffff) /* Byte count */ - -/* Flag description. */ -#define DSCR_CMD1_FL_MEM_STRIDE0 0 -#define DSCR_CMD1_FL_MEM_STRIDE1 1 -#define DSCR_CMD1_FL_MEM_STRIDE2 2 - -#define DSCR_CMD1_FL(x) (((x) & 0x3) << 22) - -/* Source1, 1-dimensional stride. */ -#define DSCR_SRC1_STS_MASK (3 << 30) /* Src xfer size */ -#define DSCR_SRC1_SAM_MASK (3 << 28) /* Src xfer movement */ -#define DSCR_SRC1_SB_MASK (0x3fff << 14) /* Block size */ -#define DSCR_SRC1_SB(x) (((x) & 0x3fff) << 14) -#define DSCR_SRC1_SS_MASK (0x3fff << 0) /* Stride */ -#define DSCR_SRC1_SS(x) (((x) & 0x3fff) << 0) - -/* Dest1, 1-dimensional stride. */ -#define DSCR_DEST1_DTS_MASK (3 << 30) /* Dest xfer size */ -#define DSCR_DEST1_DAM_MASK (3 << 28) /* Dest xfer movement */ -#define DSCR_DEST1_DB_MASK (0x3fff << 14) /* Block size */ -#define DSCR_DEST1_DB(x) (((x) & 0x3fff) << 14) -#define DSCR_DEST1_DS_MASK (0x3fff << 0) /* Stride */ -#define DSCR_DEST1_DS(x) (((x) & 0x3fff) << 0) - -#define DSCR_xTS_SIZE1 0 -#define DSCR_xTS_SIZE2 1 -#define DSCR_xTS_SIZE4 2 -#define DSCR_xTS_SIZE8 3 -#define DSCR_SRC1_STS(x) (((x) & 3) << 30) -#define DSCR_DEST1_DTS(x) (((x) & 3) << 30) - -#define DSCR_xAM_INCREMENT 0 -#define DSCR_xAM_DECREMENT 1 -#define DSCR_xAM_STATIC 2 -#define DSCR_xAM_BURST 3 -#define DSCR_SRC1_SAM(x) (((x) & 3) << 28) -#define DSCR_DEST1_DAM(x) (((x) & 3) << 28) - -/* The next descriptor pointer. */ -#define DSCR_NXTPTR_MASK (0x07ffffff) -#define DSCR_NXTPTR(x) ((x) >> 5) -#define DSCR_GET_NXTPTR(x) ((x) << 5) -#define DSCR_NXTPTR_MS (1 << 27) - -/* The number of DBDMA channels. */ -#define NUM_DBDMA_CHANS 16 - -/* - * DDMA API definitions - * FIXME: may not fit to this header file - */ -typedef struct dbdma_device_table { - u32 dev_id; - u32 dev_flags; - u32 dev_tsize; - u32 dev_devwidth; - u32 dev_physaddr; /* If FIFO */ - u32 dev_intlevel; - u32 dev_intpolarity; -} dbdev_tab_t; - - -typedef struct dbdma_chan_config { - spinlock_t lock; - - u32 chan_flags; - u32 chan_index; - dbdev_tab_t *chan_src; - dbdev_tab_t *chan_dest; - au1x_dma_chan_t *chan_ptr; - au1x_ddma_desc_t *chan_desc_base; - au1x_ddma_desc_t *get_ptr, *put_ptr, *cur_ptr; - void *chan_callparam; - void (*chan_callback)(int, void *); -} chan_tab_t; - -#define DEV_FLAGS_INUSE (1 << 0) -#define DEV_FLAGS_ANYUSE (1 << 1) -#define DEV_FLAGS_OUT (1 << 2) -#define DEV_FLAGS_IN (1 << 3) -#define DEV_FLAGS_BURSTABLE (1 << 4) -#define DEV_FLAGS_SYNC (1 << 5) -/* end DDMA API definitions */ - -/* - * External functions for drivers to use. - * Use this to allocate a DBDMA channel. The device IDs are one of - * the DSCR_CMD0 devices IDs, which is usually redefined to a more - * meaningful name. The 'callback' is called during DMA completion - * interrupt. - */ -extern u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, - void (*callback)(int, void *), - void *callparam); - -#define DBDMA_MEM_CHAN DSCR_CMD0_ALWAYS - -/* Set the device width of an in/out FIFO. */ -u32 au1xxx_dbdma_set_devwidth(u32 chanid, int bits); - -/* Allocate a ring of descriptors for DBDMA. */ -u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries); - -/* Put buffers on source/destination descriptors. */ -u32 _au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags); -u32 _au1xxx_dbdma_put_dest(u32 chanid, void *buf, int nbytes, u32 flags); - -/* Get a buffer from the destination descriptor. */ -u32 au1xxx_dbdma_get_dest(u32 chanid, void **buf, int *nbytes); - -void au1xxx_dbdma_stop(u32 chanid); -void au1xxx_dbdma_start(u32 chanid); -void au1xxx_dbdma_reset(u32 chanid); -u32 au1xxx_get_dma_residue(u32 chanid); - -void au1xxx_dbdma_chan_free(u32 chanid); -void au1xxx_dbdma_dump(u32 chanid); - -u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr); - -u32 au1xxx_ddma_add_device(dbdev_tab_t *dev); -extern void au1xxx_ddma_del_device(u32 devid); -void *au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp); - -/* - * Some compatibilty macros -- needed to make changes to API - * without breaking existing drivers. - */ -#define au1xxx_dbdma_put_source(chanid, buf, nbytes) \ - _au1xxx_dbdma_put_source(chanid, buf, nbytes, DDMA_FLAGS_IE) -#define au1xxx_dbdma_put_source_flags(chanid, buf, nbytes, flags) \ - _au1xxx_dbdma_put_source(chanid, buf, nbytes, flags) -#define put_source_flags(chanid, buf, nbytes, flags) \ - au1xxx_dbdma_put_source_flags(chanid, buf, nbytes, flags) - -#define au1xxx_dbdma_put_dest(chanid, buf, nbytes) \ - _au1xxx_dbdma_put_dest(chanid, buf, nbytes, DDMA_FLAGS_IE) -#define au1xxx_dbdma_put_dest_flags(chanid, buf, nbytes, flags) \ - _au1xxx_dbdma_put_dest(chanid, buf, nbytes, flags) -#define put_dest_flags(chanid, buf, nbytes, flags) \ - au1xxx_dbdma_put_dest_flags(chanid, buf, nbytes, flags) - -/* - * Flags for the put_source/put_dest functions. - */ -#define DDMA_FLAGS_IE (1 << 0) -#define DDMA_FLAGS_NOIE (1 << 1) - -#endif /* _LANGUAGE_ASSEMBLY */ -#endif /* _AU1000_DBDMA_H_ */ |