/* * arch/arm/plat-omap/include/mach/dma.h * * Copyright (C) 2003 Nokia Corporation * Author: Juha Yrjölä * * 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 program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H #include /* * TODO: These dma channel defines should go away once all * the omap drivers hwmod adapted. */ /* Move omap4 specific defines to dma-44xx.h */ #include "dma-44xx.h" /* DMA channels for omap1 */ #define OMAP_DMA_NO_DEVICE 0 #define OMAP_DMA_MCSI1_TX 1 #define OMAP_DMA_MCSI1_RX 2 #define OMAP_DMA_I2C_RX 3 #define OMAP_DMA_I2C_TX 4 #define OMAP_DMA_EXT_NDMA_REQ 5 #define OMAP_DMA_EXT_NDMA_REQ2 6 #define OMAP_DMA_UWIRE_TX 7 #define OMAP_DMA_MCBSP1_TX 8 #define OMAP_DMA_MCBSP1_RX 9 #define OMAP_DMA_MCBSP3_TX 10 #define OMAP_DMA_MCBSP3_RX 11 #define OMAP_DMA_UART1_TX 12 #define OMAP_DMA_UART1_RX 13 #define OMAP_DMA_UART2_TX 14 #define OMAP_DMA_UART2_RX 15 #define OMAP_DMA_MCBSP2_TX 16 #define OMAP_DMA_MCBSP2_RX 17 #define OMAP_DMA_UART3_TX 18 #define OMAP_DMA_UART3_RX 19 #define OMAP_DMA_CAMERA_IF_RX 20 #define OMAP_DMA_MMC_TX 21 #define OMAP_DMA_MMC_RX 22 #define OMAP_DMA_NAND 23 #define OMAP_DMA_IRQ_LCD_LINE 24 #define OMAP_DMA_MEMORY_STICK 25 #define OMAP_DMA_USB_W2FC_RX0 26 #define OMAP_DMA_USB_W2FC_RX1 27 #define OMAP_DMA_USB_W2FC_RX2 28 #define OMAP_DMA_USB_W2FC_TX0 29 #define OMAP_DMA_USB_W2FC_TX1 30 #define OMAP_DMA_USB_W2FC_TX2 31 /* These are only for 1610 */ #define OMAP_DMA_CRYPTO_DES_IN 32 #define OMAP_DMA_SPI_TX 33 #define OMAP_DMA_SPI_RX 34 #define OMAP_DMA_CRYPTO_HASH 35 #define OMAP_DMA_CCP_ATTN 36 #define OMAP_DMA_CCP_FIFO_NOT_EMPTY 37 #define OMAP_DMA_CMT_APE_TX_CHAN_0 38 #define OMAP_DMA_CMT_APE_RV_CHAN_0 39 #define OMAP_DMA_CMT_APE_TX_CHAN_1 40 #define OMAP_DMA_CMT_APE_RV_CHAN_1 41 #define OMAP_DMA_CMT_APE_TX_CHAN_2 42 #define OMAP_DMA_CMT_APE_RV_CHAN_2 43 #define OMAP_DMA_CMT_APE_TX_CHAN_3 44 #define OMAP_DMA_CMT_APE_RV_CHAN_3 45 #define OMAP_DMA_CMT_APE_TX_CHAN_4 46 #define OMAP_DMA_CMT_APE_RV_CHAN_4 47 #define OMAP_DMA_CMT_APE_TX_CHAN_5 48 #define OMAP_DMA_CMT_APE_RV_CHAN_5 49 #define OMAP_DMA_CMT_APE_TX_CHAN_6 50 #define OMAP_DMA_CMT_APE_RV_CHAN_6 51 #define OMAP_DMA_CMT_APE_TX_CHAN_7 52 #define OMAP_DMA_CMT_APE_RV_CHAN_7 53 #define OMAP_DMA_MMC2_TX 54 #define OMAP_DMA_MMC2_RX 55 #define OMAP_DMA_CRYPTO_DES_OUT 56 /* DMA channels for 24xx */ #define OMAP24XX_DMA_NO_DEVICE 0 #define OMAP24XX_DMA_XTI_DMA 1 /* S_DMA_0 */ #define OMAP24XX_DMA_EXT_DMAREQ0 2 /* S_DMA_1 */ #define OMAP24XX_DMA_EXT_DMAREQ1 3 /* S_DMA_2 */ #define OMAP24XX_DMA_GPMC 4 /* S_DMA_3 */ #define OMAP24XX_DMA_GFX 5 /* S_DMA_4 */ #define OMAP24XX_DMA_DSS 6 /* S_DMA_5 */ #define OMAP242X_DMA_VLYNQ_TX 7 /* S_DMA_6 */ #define OMAP24XX_DMA_EXT_DMAREQ2 7 /* S_DMA_6 */ #define OMAP24XX_DMA_CWT 8 /* S_DMA_7 */ #define OMAP24XX_DMA_AES_TX 9 /* S_DMA_8 */ #define OMAP24XX_DMA_AES_RX 10 /* S_DMA_9 */ #define OMAP24XX_DMA_DES_TX 11 /* S_DMA_10 */ #define OMAP24XX_DMA_DES_RX 12 /* S_DMA_11 */ #define OMAP24XX_DMA_SHA1MD5_RX 13 /* S_DMA_12 */ #define OMAP34XX_DMA_SHA2MD5_RX 13 /* S_DMA_12 */ #define OMAP242X_DMA_EXT_DMAREQ2 14 /* S_DMA_13 */ #define OMAP242X_DMA_EXT_DMAREQ3 15 /* S_DMA_14 */ #define OMAP242X_DMA_EXT_DMAREQ4 16 /* S_DMA_15 */ #define OMAP242X_DMA_EAC_AC_RD 17 /* S_DMA_16 */ #define OMAP242X_DMA_EAC_AC_WR 18 /* S_DMA_17 */ #define OMAP242X_DMA_EAC_MD_UL_RD 19 /* S_DMA_18 */ #define OMAP242X_DMA_EAC_MD_UL_WR 20 /* S_DMA_19 */ #define OMAP242X_DMA_EAC_MD_DL_RD 21 /* S_DMA_20 */ #define OMAP242X_DMA_EAC_MD_DL_WR 22 /* S_DMA_21 */ #define OMAP242X_DMA_EAC_BT_UL_RD 23 /* S_DMA_22 */ #define OMAP242X_DMA_EAC_BT_UL_WR 24 /* S_DMA_23 */ #define OMAP242X_DMA_EAC_BT_DL_RD 25 /* S_DMA_24 */ #define OMAP242X_DMA_EAC_BT_DL_WR 26 /* S_DMA_25 */ #define OMAP243X_DMA_EXT_DMAREQ3 14 /* S_DMA_13 */ #define OMAP24XX_DMA_SPI3_TX0 15 /* S_DMA_14 */ #define OMAP24XX_DMA_SPI3_RX0 16 /* S_DMA_15 */ #define OMAP24XX_DMA_MCBSP3_TX 17 /* S_DMA_16 */ #define OMAP24XX_DMA_MCBSP3_RX 18 /* S_DMA_17 */ #define OMAP24XX_DMA_MCBSP4_TX 19 /* S_DMA_18 */ #define OMAP24XX_DMA_MCBSP4_RX 20 /* S_DMA_19 */ #define OMAP24XX_DMA_MCBSP5_TX 21 /* S_DMA_20 */ #define OMAP24XX_DMA_MCBSP5_RX 22 /* S_DMA_21 */ #define OMAP24XX_DMA_SPI3_TX1 23 /* S_DMA_22 */ #define OMAP24XX_DMA_SPI3_RX1 24 /* S_DMA_23 */ #define OMAP243X_DMA_EXT_DMAREQ4 25 /* S_DMA_24 */ #define OMAP243X_DMA_EXT_DMAREQ5 26 /* S_DMA_25 */ #define OMAP34XX_DMA_I2C3_TX 25 /* S_DMA_24 */ #define OMAP34XX_DMA_I2C3_RX 26 /* S_DMA_25 */ #define OMAP24XX_DMA_I2C1_TX 27 /* S_DMA_26 */ #define OMAP24XX_DMA_I2C1_RX 28 /* S_DMA_27 */ #define OMAP24XX_DMA_I2C2_TX 29 /* S_DMA_28 */ #define OMAP24XX_DMA_I2C2_RX 30 /* S_DMA_29 */ #define OMAP24XX_DMA_MCBSP1_TX 31 /* S_DMA_30 */ #define OMAP24XX_DMA_MCBSP1_RX 32 /* S_DMA_31 */ #define OMAP24XX_DMA_MCBSP2_TX 33 /* S_DMA_32 */ #define OMAP24XX_DMA_MCBSP2_RX 34 /* S_DMA_33 */ #define OMAP24XX_DMA_SPI1_TX0 35 /* S_DMA_34 */ #define OMAP24XX_DMA_SPI1_RX0 36 /* S_DMA_35 */ #define OMAP24XX_DMA_SPI1_TX1 37 /* S_DMA_36 */ #define OMAP24XX_DMA_SPI1_RX1 38 /* S_DMA_37 */ #define OMAP24XX_DMA_SPI1_TX2 39 /* S_DMA_38 */ #define OMAP24XX_DMA_SPI1_RX2 40 /* S_DMA_39 */ #define OMAP24XX_DMA_SPI1_TX3 41 /* S_DMA_40 */ #define OMAP24XX_DMA_SPI1_RX3 42 /* S_DMA_41 */ #define OMAP24XX_DMA_SPI2_TX0 43 /* S_DMA_42 */ #define OMAP24XX_DMA_SPI2_RX0 44 /* S_DMA_43 */ #define OMAP24XX_DMA_SPI2_TX1 45 /* S_DMA_44 */ #define OMAP24XX_DMA_SPI2_RX1 46 /* S_DMA_45 */ #define OMAP24XX_DMA_MMC2_TX 47 /* S_DMA_46 */ #define OMAP24XX_DMA_MMC2_RX 48 /* S_DMA_47 */ #define OMAP24XX_DMA_UART1_TX 49 /* S_DMA_48 */ #define OMAP24XX_DMA_UART1_RX 50 /* S_DMA_49 */ #define OMAP24XX_DMA_UART2_TX 51 /* S_DMA_50 */ #define OMAP24XX_DMA_UART2_RX 52 /* S_DMA_51 */ #define OMAP24XX_DMA_UART3_TX 53 /* S_DMA_52 */ #define OMAP24XX_DMA_UART3_RX 54 /* S_DMA_53 */ #define OMAP24XX_DMA_USB_W2FC_TX0 55 /* S_DMA_54 */ #define OMAP24XX_DMA_USB_W2FC_RX0 56 /* S_DMA_55 */ #define OMAP24XX_DMA_USB_W2FC_TX1 57 /* S_DMA_56 */ #define OMAP24XX_DMA_USB_W2FC_RX1 58 /* S_DMA_57 */ #define OMAP24XX_DMA_USB_W2FC_TX2 59 /* S_DMA_58 */ #define OMAP24XX_DMA_USB_W2FC_RX2 60 /* S_DMA_59 */ #define OMAP24XX_DMA_MMC1_TX 61 /* S_DMA_60 */ #define OMAP24XX_DMA_MMC1_RX 62 /* S_DMA_61 */ #define OMAP24XX_DMA_MS 63 /* S_DMA_62 */ #define OMAP242X_DMA_EXT_DMAREQ5 64 /* S_DMA_63 */ #define OMAP243X_DMA_EXT_DMAREQ6 64 /* S_DMA_63 */ #define OMAP34XX_DMA_EXT_DMAREQ3 64 /* S_DMA_63 */ #define OMAP34XX_DMA_AES2_TX 65 /* S_DMA_64 */ #define OMAP34XX_DMA_AES2_RX 66 /* S_DMA_65 */ #define OMAP34XX_DMA_DES2_TX 67 /* S_DMA_66 */ #define OMAP34XX_DMA_DES2_RX 68 /* S_DMA_67 */ #define OMAP34XX_DMA_SHA1MD5_RX 69 /* S_DMA_68 */ #define OMAP34XX_DMA_SPI4_TX0 70 /* S_DMA_69 */ #define OMAP34XX_DMA_SPI4_RX0 71 /* S_DMA_70 */ #define OMAP34XX_DSS_DMA0 72 /* S_DMA_71 */ #define OMAP34XX_DSS_DMA1 73 /* S_DMA_72 */ #define OMAP34XX_DSS_DMA2 74 /* S_DMA_73 */ #define OMAP34XX_DSS_DMA3 75 /* S_DMA_74 */ #define OMAP34XX_DMA_MMC3_TX 77 /* S_DMA_76 */ #define OMAP34XX_DMA_MMC3_RX 78 /* S_DMA_77 */ #define OMAP34XX_DMA_USIM_TX 79 /* S_DMA_78 */ #define OMAP34XX_DMA_USIM_RX 80 /* S_DMA_79 */ #define OMAP36XX_DMA_UART4_TX 81 /* S_DMA_80 */ #define OMAP36XX_DMA_UART4_RX 82 /* S_DMA_81 */ /* Only for AM35xx */ #define AM35XX_DMA_UART4_TX 54 #define AM35XX_DMA_UART4_RX 55 /*----------------------------------------------------------------------------*/ #define OMAP1_DMA_TOUT_IRQ (1 << 0) #define OMAP_DMA_DROP_IRQ (1 << 1) #define OMAP_DMA_HALF_IRQ (1 << 2) #define OMAP_DMA_FRAME_IRQ (1 << 3) #define OMAP_DMA_LAST_IRQ (1 << 4) #define OMAP_DMA_BLOCK_IRQ (1 << 5) #define OMAP1_DMA_SYNC_IRQ (1 << 6) #define OMAP2_DMA_PKT_IRQ (1 << 7) #define OMAP2_DMA_TRANS_ERR_IRQ (1 << 8) #define OMAP2_DMA_SECURE_ERR_IRQ (1 << 9) #define OMAP2_DMA_SUPERVISOR_ERR_IRQ (1 << 10) #define OMAP2_DMA_MISALIGNED_ERR_IRQ (1 << 11) #define OMAP_DMA_CCR_EN (1 << 7) #define OMAP_DMA_CCR_RD_ACTIVE (1 << 9) #define OMAP_DMA_CCR_WR_ACTIVE (1 << 10) #define OMAP_DMA_CCR_SEL_SRC_DST_SYNC (1 << 24) #define OMAP_DMA_CCR_BUFFERING_DISABLE (1 << 25) #define OMAP_DMA_DATA_TYPE_S8 0x00 #define OMAP_DMA_DATA_TYPE_S16 0x01 #define OMAP_DMA_DATA_TYPE_S32 0x02 #define OMAP_DMA_SYNC_ELEMENT 0x00 #define OMAP_DMA_SYNC_FRAME 0x01 #define OMAP_DMA_SYNC_BLOCK 0x02 #define OMAP_DMA_SYNC_PACKET 0x03 #define OMAP_DMA_DST_SYNC_PREFETCH 0x02 #define OMAP_DMA_SRC_SYNC 0x01 #define OMAP_DMA_DST_SYNC 0x00 #define OMAP_DMA_PORT_EMIFF 0x00 #define OMAP_DMA_PORT_EMIFS 0x01 #define OMAP_DMA_PORT_OCP_T1 0x02 #define OMAP_DMA_PORT_TIPB 0x03 #define OMAP_DMA_PORT_OCP_T2 0x04 #define OMAP_DMA_PORT_MPUI 0x05 #define OMAP_DMA_AMODE_CONSTANT 0x00 #define OMAP_DMA_AMODE_POST_INC 0x01 #define OMAP_DMA_AMODE_SINGLE_IDX 0x02 #define OMAP_DMA_AMODE_DOUBLE_IDX 0x03 #define DMA_DEFAULT_FIFO_DEPTH 0x10 #define DMA_DEFAULT_ARB_RATE 0x01 /* Pass THREAD_RESERVE ORed with THREAD_FIFO for tparams */ #define DMA_THREAD_RESERVE_NORM (0x00 << 12) /* Def */ #define DMA_THREAD_RESERVE_ONET (0x01 << 12) #define DMA_THREAD_RESERVE_TWOT (0x02 << 12) #define DMA_THREAD_RESERVE_THREET (0x03 << 12) #define DMA_THREAD_FIFO_NONE (0x00 << 14) /* Def */ #define DMA_THREAD_FIFO_75 (0x01 << 14) #define DMA_THREAD_FIFO_25 (0x02 << 14) #define DMA_THREAD_FIFO_50 (0x03 << 14) /* DMA4_OCP_SYSCONFIG bits */ #define DMA_SYSCONFIG_MIDLEMODE_MASK (3 << 12) #define DMA_SYSCONFIG_CLOCKACTIVITY_MASK (3 << 8) #define DMA_SYSCONFIG_EMUFREE (1 << 5) #define DMA_SYSCONFIG_SIDLEMODE_MASK (3 << 3) #define DMA_SYSCONFIG_SOFTRESET (1 << 2) #define DMA_SYSCONFIG_AUTOIDLE (1 << 0) #define DMA_SYSCONFIG_MIDLEMODE(n) ((n) << 12) #define DMA_SYSCONFIG_SIDLEMODE(n) ((n) << 3) #define DMA_IDLEMODE_SMARTIDLE 0x2 #define DMA_IDLEMODE_NO_IDLE 0x1 #define DMA_IDLEMODE_FORCE_IDLE 0x0 /* Chaining modes*/ #ifndef CONFIG_ARCH_OMAP1 #define OMAP_DMA_STATIC_CHAIN 0x1 #define OMAP_DMA_DYNAMIC_CHAIN 0x2 #define OMAP_DMA_CHAIN_ACTIVE 0x1 #define OMAP_DMA_CHAIN_INACTIVE 0x0 #endif #define DMA_CH_PRIO_HIGH 0x1 #define DMA_CH_PRIO_LOW 0x0 /* Def */ /* Errata handling */ #define IS_DMA_ERRATA(id) (errata & (id)) #define SET_DMA_ERRATA(id) (errata |= (id)) #define DMA_ERRATA_IFRAME_BUFFERING BIT(0x0) #define DMA_ERRATA_PARALLEL_CHANNELS BIT(0x1) #define DMA_ERRATA_i378 BIT(0x2) #define DMA_ERRATA_i541 BIT(0x3) #define DMA_ERRATA_i88 BIT(0x4) #define DMA_ERRATA_3_3 BIT(0x5) #define DMA_ROMCODE_BUG BIT(0x6) /* Attributes for OMAP DMA Contrller */ #define DMA_LINKED_LCH BIT(0x0) #define GLOBAL_PRIORITY BIT(0x1) #define RESERVE_CHANNEL BIT(0x2) #define IS_CSSA_32 BIT(0x3) #define IS_CDSA_32 BIT(0x4) #define IS_RW_PRIORITY BIT(0x5) #define ENABLE_1510_MODE BIT(0x6) #define SRC_PORT BIT(0x7) #define DST_PORT BIT(0x8) #define SRC_INDEX BIT(0x9) #define DST_INDEX BIT(0xA) #define IS_BURST_ONLY4 BIT(0xB) #define CLEAR_CSR_ON_READ BIT(0xC) #define IS_WORD_16 BIT(0xD) /* Defines for DMA Capabilities */ #define DMA_HAS_TRANSPARENT_CAPS (0x1 << 18) #define DMA_HAS_CONSTANT_FILL_CAPS (0x1 << 19) #define DMA_HAS_DESCRIPTOR_CAPS (0x3 << 20) enum omap_reg_offsets { GCR, GSCR, GRST1, HW_ID, PCH2_ID, PCH0_ID, PCH1_ID, PCHG_ID, PCHD_ID, CAPS_0, CAPS_1, CAPS_2, CAPS_3, CAPS_4, PCH2_SR, PCH0_SR, PCH1_SR, PCHD_SR, REVISION, IRQSTATUS_L0, IRQSTATUS_L1, IRQSTATUS_L2, IRQSTATUS_L3, IRQENABLE_L0, IRQENABLE_L1, IRQENABLE_L2, IRQENABLE_L3, SYSSTATUS, OCP_SYSCONFIG, /* omap1+ specific */ CPC, CCR2, LCH_CTRL, /* Common registers for all omap's */ CSDP, CCR, CICR, CSR, CEN, CFN, CSFI, CSEI, CSAC, CDAC, CDEI, CDFI, CLNK_CTRL, /* Channel specific registers */ CSSA, CDSA, COLOR, CCEN, CCFN, /* omap3630 and omap4 specific */ CDP, CNDP, CCDN, }; enum omap_dma_burst_mode { OMAP_DMA_DATA_BURST_DIS = 0, OMAP_DMA_DATA_BURST_4, OMAP_DMA_DATA_BURST_8, OMAP_DMA_DATA_BURST_16, }; enum end_type { OMAP_DMA_LITTLE_ENDIAN = 0, OMAP_DMA_BIG_ENDIAN }; enum omap_dma_color_mode { OMAP_DMA_COLOR_DIS = 0, OMAP_DMA_CONSTANT_FILL, OMAP_DMA_TRANSPARENT_COPY }; enum omap_dma_write_mode { OMAP_DMA_WRITE_NON_POSTED = 0, OMAP_DMA_WRITE_POSTED, OMAP_DMA_WRITE_LAST_NON_POSTED }; enum omap_dma_channel_mode { OMAP_DMA_LCH_2D = 0, OMAP_DMA_LCH_G, OMAP_DMA_LCH_P, OMAP_DMA_LCH_PD }; struct omap_dma_channel_params { int data_type; /* data type 8,16,32 */ int elem_count; /* number of elements in a frame */ int frame_count; /* number of frames in a element */ int src_port; /* Only on OMAP1 REVISIT: Is this needed? */ int src_amode; /* constant, post increment, indexed, double indexed */ unsigned long src_start; /* source address : physical */ int src_ei; /* source element index */ int src_fi; /* source frame index */ int dst_port; /* Only on OMAP1 REVISIT: Is this needed? */ int dst_amode; /* constant, post increment, indexed, double indexed */ unsigned long dst_start; /* source address : physical */ int dst_ei; /* source element index */ int dst_fi; /* source frame index */ int trigger; /* trigger attached if the channel is synchronized */ int sync_mode; /* sycn on element, frame , block or packet */ int src_or_dst_synch; /* source synch(1) or destination synch(0) */ int ie; /* interrupt enabled */ unsigned char read_prio;/* read priority */ unsigned char write_prio;/* write priority */ #ifndef CONFIG_ARCH_OMAP1 enum omap_dma_burst_mode burst_mode; /* Burst mode 4/8/16 words */ #endif }; struct omap_dma_lch { int next_lch; int dev_id; u16 saved_csr; u16 enabled_irqs; const char *dev_name; void (*callback)(int lch, u16 ch_status, void *data); void *data; long flags; /* required for Dynamic chaining */ int prev_linked_ch; int next_linked_ch; int state; int chain_id; int status; }; struct omap_dma_dev_attr { u32 dev_caps; u16 lch_count; u16 chan_count; struct omap_dma_lch *chan; }; /* System DMA platform data structure */ struct omap_system_dma_plat_info { struct omap_dma_dev_attr *dma_attr; u32 errata; void (*disable_irq_lch)(int lch); void (*show_dma_caps)(void); void (*clear_lch_regs)(int lch); void (*clear_dma)(int lch); void (*dma_write)(u32 val, int reg, int lch); u32 (*dma_read)(int reg, int lch); }; extern void __init omap_init_consistent_dma_size(void); extern void omap_set_dma_priority(int lch, int dst_port, int priority); extern int omap_request_dma(int dev_id, const char *dev_name, void (*callback)(int lch, u16 ch_status, void *data), void *data, int *dma_ch); extern void omap_enable_dma_irq(int ch, u16 irq_bits); extern void omap_disable_dma_irq(int ch, u16 irq_bits); extern void omap_free_dma(int ch); extern void omap_start_dma(int lch); extern void omap_stop_dma(int lch); extern void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, int frame_count, int sync_mode, int dma_trigger, int src_or_dst_synch); extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color); extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode); extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode); extern void omap_set_dma_src_params(int lch, int src_port, int src_amode, unsigned long src_start, int src_ei, int src_fi); extern void omap_set_dma_src_index(int lch, int eidx, int fidx); extern void omap_set_dma_src_data_pack(int lch, int enable); extern void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode); extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, unsigned long dest_start, int dst_ei, int dst_fi); extern void omap_set_dma_dest_index(int lch, int eidx, int fidx); extern void omap_set_dma_dest_data_pack(int lch, int enable); extern void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode); extern void omap_set_dma_params(int lch, struct omap_dma_channel_params *params); extern void omap_dma_link_lch(int lch_head, int lch_queue); extern void omap_dma_unlink_lch(int lch_head, int lch_queue); extern int omap_set_dma_callback(int lch, void (*callback)(int lch, u16 ch_status, void *data), void *data); extern dma_addr_t omap_get_dma_src_pos(int lch); extern dma_addr_t omap_get_dma_dst_pos(int lch); extern void omap_clear_dma(int lch); extern int omap_get_dma_active_status(int lch); extern int omap_dma_running(void); extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams); extern int omap_dma_set_prio_lch(int lch, unsigned char read_prio, unsigned char write_prio); extern void omap_set_dma_dst_endian_type(int lch, enum end_type etype); extern void omap_set_dma_src_endian_type(int lch, enum end_type etype); extern int omap_get_dma_index(int lch, int *ei, int *fi); void omap_dma_global_context_save(void); void omap_dma_global_context_restore(void); extern void omap_dma_disable_irq(int lch); /* Chaining APIs */ #ifndef CONFIG_ARCH_OMAP1 extern int omap_request_dma_chain(int dev_id, const char *dev_name, void (*callback) (int lch, u16 ch_status, void *data), int *chain_id, int no_of_chans, int chain_mode, struct omap_dma_channel_params params); extern int omap_free_dma_chain(int chain_id); extern int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, int elem_count, int frame_count, void *callbk_data); extern int omap_start_dma_chain_transfers(int chain_id); extern int omap_stop_dma_chain_transfers(int chain_id); extern int omap_get_dma_chain_index(int chain_id, int *ei, int *fi); extern int omap_get_dma_chain_dst_pos(int chain_id); extern int omap_get_dma_chain_src_pos(int chain_id); extern int omap_modify_dma_chain_params(int chain_id, struct omap_dma_channel_params params); extern int omap_dma_chain_status(int chain_id); #endif #if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_FB_OMAP) #include #else static inline int omap_lcd_dma_running(void) { return 0; } #endif #endif /* __ASM_ARCH_DMA_H */