/* linux/include/asm-arm/arch-msm/dma.h * * Copyright (C) 2007 Google, Inc. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * 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. * */ #ifndef __ASM_ARCH_MSM_DMA_H #include #include struct msm_dmov_cmd { struct list_head list; unsigned int cmdptr; void (*complete_func)(struct msm_dmov_cmd *cmd, unsigned int result); /* void (*user_result_func)(struct msm_dmov_cmd *cmd); */ }; void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd); void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd); int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr); /* int msm_dmov_exec_cmd_etc(unsigned id, unsigned int cmdptr, int timeout, int interruptible); */ #define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2)) #define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2)) #define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2)) #define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2)) /* only security domain 3 is available to the ARM11 * SD0 -> mARM trusted, SD1 -> mARM nontrusted, SD2 -> aDSP, SD3 -> aARM */ #define DMOV_CMD_PTR(ch) DMOV_SD3(0x000, ch) #define DMOV_CMD_LIST (0 << 29) /* does not work */ #define DMOV_CMD_PTR_LIST (1 << 29) /* works */ #define DMOV_CMD_INPUT_CFG (2 << 29) /* untested */ #define DMOV_CMD_OUTPUT_CFG (3 << 29) /* untested */ #define DMOV_CMD_ADDR(addr) ((addr) >> 3) #define DMOV_RSLT(ch) DMOV_SD3(0x040, ch) #define DMOV_RSLT_VALID (1 << 31) /* 0 == host has empties result fifo */ #define DMOV_RSLT_ERROR (1 << 3) #define DMOV_RSLT_FLUSH (1 << 2) #define DMOV_RSLT_DONE (1 << 1) /* top pointer done */ #define DMOV_RSLT_USER (1 << 0) /* command with FR force result */ #define DMOV_FLUSH0(ch) DMOV_SD3(0x080, ch) #define DMOV_FLUSH1(ch) DMOV_SD3(0x0C0, ch) #define DMOV_FLUSH2(ch) DMOV_SD3(0x100, ch) #define DMOV_FLUSH3(ch) DMOV_SD3(0x140, ch) #define DMOV_FLUSH4(ch) DMOV_SD3(0x180, ch) #define DMOV_FLUSH5(ch) DMOV_SD3(0x1C0, ch) #define DMOV_STATUS(ch) DMOV_SD3(0x200, ch) #define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29)) #define DMOV_STATUS_CMD_COUNT(n) (((n) >> 27) & 3) #define DMOV_STATUS_RSLT_VALID (1 << 1) #define DMOV_STATUS_CMD_PTR_RDY (1 << 0) #define DMOV_ISR DMOV_SD3(0x380, 0) #define DMOV_CONFIG(ch) DMOV_SD3(0x300, ch) #define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2) #define DMOV_CONFIG_FORCE_FLUSH_RSLT (1 << 1) #define DMOV_CONFIG_IRQ_EN (1 << 0) /* channel assignments */ #define DMOV_NAND_CHAN 7 #define DMOV_NAND_CRCI_CMD 5 #define DMOV_NAND_CRCI_DATA 4 #define DMOV_SDC1_CHAN 8 #define DMOV_SDC1_CRCI 6 #define DMOV_SDC2_CHAN 8 #define DMOV_SDC2_CRCI 7 #define DMOV_TSIF_CHAN 10 #define DMOV_TSIF_CRCI 10 #define DMOV_USB_CHAN 11 /* no client rate control ifc (eg, ram) */ #define DMOV_NONE_CRCI 0 /* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover * is going to walk a list of 32bit pointers as described below. Each * pointer points to a *array* of dmov_s, etc structs. The last pointer * in the list is marked with CMD_PTR_LP. The last struct in each array * is marked with CMD_LC (see below). */ #define CMD_PTR_ADDR(addr) ((addr) >> 3) #define CMD_PTR_LP (1 << 31) /* last pointer */ #define CMD_PTR_PT (3 << 29) /* ? */ /* Single Item Mode */ typedef struct { unsigned cmd; unsigned src; unsigned dst; unsigned len; } dmov_s; /* Scatter/Gather Mode */ typedef struct { unsigned cmd; unsigned src_dscr; unsigned dst_dscr; unsigned _reserved; } dmov_sg; /* bits for the cmd field of the above structures */ #define CMD_LC (1 << 31) /* last command */ #define CMD_FR (1 << 22) /* force result -- does not work? */ #define CMD_OCU (1 << 21) /* other channel unblock */ #define CMD_OCB (1 << 20) /* other channel block */ #define CMD_TCB (1 << 19) /* ? */ #define CMD_DAH (1 << 18) /* destination address hold -- does not work?*/ #define CMD_SAH (1 << 17) /* source address hold -- does not work? */ #define CMD_MODE_SINGLE (0 << 0) /* dmov_s structure used */ #define CMD_MODE_SG (1 << 0) /* untested */ #define CMD_MODE_IND_SG (2 << 0) /* untested */ #define CMD_MODE_BOX (3 << 0) /* untested */ #define CMD_DST_SWAP_BYTES (1 << 14) /* exchange each byte n with byte n+1 */ #define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */ #define CMD_DST_SWAP_WORDS (1 << 16) /* exchange each word n with word n+1 */ #define CMD_SRC_SWAP_BYTES (1 << 11) /* exchange each byte n with byte n+1 */ #define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */ #define CMD_SRC_SWAP_WORDS (1 << 13) /* exchange each word n with word n+1 */ #define CMD_DST_CRCI(n) (((n) & 15) << 7) #define CMD_SRC_CRCI(n) (((n) & 15) << 3) #endif