Commit | Line | Data |
---|---|---|
bfe645ad AH |
1 | /* linux/include/asm-arm/arch-msm/dma.h |
2 | * | |
3 | * Copyright (C) 2007 Google, Inc. | |
4 | * | |
5 | * This software is licensed under the terms of the GNU General Public | |
6 | * License version 2, as published by the Free Software Foundation, and | |
7 | * may be copied, distributed, and modified under those terms. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | */ | |
3042102a | 15 | |
bfe645ad AH |
16 | #ifndef __ASM_ARCH_MSM_DMA_H |
17 | ||
18 | #include <linux/list.h> | |
19 | #include <asm/arch/msm_iomap.h> | |
20 | ||
21 | struct msm_dmov_cmd { | |
22 | struct list_head list; | |
23 | unsigned int cmdptr; | |
24 | void (*complete_func)(struct msm_dmov_cmd *cmd, unsigned int result); | |
25 | /* void (*user_result_func)(struct msm_dmov_cmd *cmd); */ | |
26 | }; | |
27 | ||
28 | void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd); | |
29 | void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd); | |
30 | int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr); | |
31 | /* int msm_dmov_exec_cmd_etc(unsigned id, unsigned int cmdptr, int timeout, int interruptible); */ | |
32 | ||
33 | ||
34 | ||
35 | #define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2)) | |
36 | #define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2)) | |
37 | #define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2)) | |
38 | #define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2)) | |
39 | ||
40 | /* only security domain 3 is available to the ARM11 | |
41 | * SD0 -> mARM trusted, SD1 -> mARM nontrusted, SD2 -> aDSP, SD3 -> aARM | |
42 | */ | |
43 | ||
44 | #define DMOV_CMD_PTR(ch) DMOV_SD3(0x000, ch) | |
45 | #define DMOV_CMD_LIST (0 << 29) /* does not work */ | |
46 | #define DMOV_CMD_PTR_LIST (1 << 29) /* works */ | |
47 | #define DMOV_CMD_INPUT_CFG (2 << 29) /* untested */ | |
48 | #define DMOV_CMD_OUTPUT_CFG (3 << 29) /* untested */ | |
49 | #define DMOV_CMD_ADDR(addr) ((addr) >> 3) | |
50 | ||
51 | #define DMOV_RSLT(ch) DMOV_SD3(0x040, ch) | |
52 | #define DMOV_RSLT_VALID (1 << 31) /* 0 == host has empties result fifo */ | |
53 | #define DMOV_RSLT_ERROR (1 << 3) | |
54 | #define DMOV_RSLT_FLUSH (1 << 2) | |
55 | #define DMOV_RSLT_DONE (1 << 1) /* top pointer done */ | |
56 | #define DMOV_RSLT_USER (1 << 0) /* command with FR force result */ | |
57 | ||
58 | #define DMOV_FLUSH0(ch) DMOV_SD3(0x080, ch) | |
59 | #define DMOV_FLUSH1(ch) DMOV_SD3(0x0C0, ch) | |
60 | #define DMOV_FLUSH2(ch) DMOV_SD3(0x100, ch) | |
61 | #define DMOV_FLUSH3(ch) DMOV_SD3(0x140, ch) | |
62 | #define DMOV_FLUSH4(ch) DMOV_SD3(0x180, ch) | |
63 | #define DMOV_FLUSH5(ch) DMOV_SD3(0x1C0, ch) | |
64 | ||
65 | #define DMOV_STATUS(ch) DMOV_SD3(0x200, ch) | |
66 | #define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29)) | |
67 | #define DMOV_STATUS_CMD_COUNT(n) (((n) >> 27) & 3) | |
68 | #define DMOV_STATUS_RSLT_VALID (1 << 1) | |
69 | #define DMOV_STATUS_CMD_PTR_RDY (1 << 0) | |
70 | ||
71 | #define DMOV_ISR DMOV_SD3(0x380, 0) | |
72 | ||
73 | #define DMOV_CONFIG(ch) DMOV_SD3(0x300, ch) | |
74 | #define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2) | |
75 | #define DMOV_CONFIG_FORCE_FLUSH_RSLT (1 << 1) | |
76 | #define DMOV_CONFIG_IRQ_EN (1 << 0) | |
77 | ||
78 | /* channel assignments */ | |
79 | ||
80 | #define DMOV_NAND_CHAN 7 | |
81 | #define DMOV_NAND_CRCI_CMD 5 | |
82 | #define DMOV_NAND_CRCI_DATA 4 | |
83 | ||
84 | #define DMOV_SDC1_CHAN 8 | |
85 | #define DMOV_SDC1_CRCI 6 | |
86 | ||
87 | #define DMOV_SDC2_CHAN 8 | |
88 | #define DMOV_SDC2_CRCI 7 | |
89 | ||
90 | #define DMOV_TSIF_CHAN 10 | |
91 | #define DMOV_TSIF_CRCI 10 | |
92 | ||
93 | #define DMOV_USB_CHAN 11 | |
94 | ||
95 | /* no client rate control ifc (eg, ram) */ | |
96 | #define DMOV_NONE_CRCI 0 | |
97 | ||
98 | ||
99 | /* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover | |
100 | * is going to walk a list of 32bit pointers as described below. Each | |
101 | * pointer points to a *array* of dmov_s, etc structs. The last pointer | |
102 | * in the list is marked with CMD_PTR_LP. The last struct in each array | |
103 | * is marked with CMD_LC (see below). | |
104 | */ | |
105 | #define CMD_PTR_ADDR(addr) ((addr) >> 3) | |
106 | #define CMD_PTR_LP (1 << 31) /* last pointer */ | |
107 | #define CMD_PTR_PT (3 << 29) /* ? */ | |
108 | ||
109 | /* Single Item Mode */ | |
110 | typedef struct { | |
111 | unsigned cmd; | |
112 | unsigned src; | |
113 | unsigned dst; | |
114 | unsigned len; | |
115 | } dmov_s; | |
116 | ||
117 | /* Scatter/Gather Mode */ | |
118 | typedef struct { | |
119 | unsigned cmd; | |
120 | unsigned src_dscr; | |
121 | unsigned dst_dscr; | |
122 | unsigned _reserved; | |
123 | } dmov_sg; | |
124 | ||
125 | /* bits for the cmd field of the above structures */ | |
126 | ||
127 | #define CMD_LC (1 << 31) /* last command */ | |
128 | #define CMD_FR (1 << 22) /* force result -- does not work? */ | |
129 | #define CMD_OCU (1 << 21) /* other channel unblock */ | |
130 | #define CMD_OCB (1 << 20) /* other channel block */ | |
131 | #define CMD_TCB (1 << 19) /* ? */ | |
132 | #define CMD_DAH (1 << 18) /* destination address hold -- does not work?*/ | |
133 | #define CMD_SAH (1 << 17) /* source address hold -- does not work? */ | |
134 | ||
135 | #define CMD_MODE_SINGLE (0 << 0) /* dmov_s structure used */ | |
136 | #define CMD_MODE_SG (1 << 0) /* untested */ | |
137 | #define CMD_MODE_IND_SG (2 << 0) /* untested */ | |
138 | #define CMD_MODE_BOX (3 << 0) /* untested */ | |
139 | ||
140 | #define CMD_DST_SWAP_BYTES (1 << 14) /* exchange each byte n with byte n+1 */ | |
141 | #define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */ | |
142 | #define CMD_DST_SWAP_WORDS (1 << 16) /* exchange each word n with word n+1 */ | |
143 | ||
144 | #define CMD_SRC_SWAP_BYTES (1 << 11) /* exchange each byte n with byte n+1 */ | |
145 | #define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */ | |
146 | #define CMD_SRC_SWAP_WORDS (1 << 13) /* exchange each word n with word n+1 */ | |
147 | ||
148 | #define CMD_DST_CRCI(n) (((n) & 15) << 7) | |
149 | #define CMD_SRC_CRCI(n) (((n) & 15) << 3) | |
150 | ||
151 | #endif |