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linux/arch/arm/plat-omap/include/plat/dma.h
R Sricharan f6d5e079a0 ARM: OMAP2+: dma: Define dma capabilities register bitfields and use them. 
The system dma module has capabiities register indicating
the support for descriptor loading, constant fill, etc.
Use this instead of OMAP revision check to identify the features
supported runtime.

This avoids patching the code for feature SOCs which has
those capabilities.

Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2012-05-08 11:54:24 +05:30

544 lines
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/*
* arch/arm/plat-omap/include/mach/dma.h
*
* Copyright (C) 2003 Nokia Corporation
* Author: Juha Yrjölä <juha.yrjola@nokia.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 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 <linux/platform_device.h>
/*
* 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 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 <mach/lcd_dma.h>
#else
static inline int omap_lcd_dma_running(void)
{
return 0;
}
#endif
#endif /* __ASM_ARCH_DMA_H */
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