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8a0f6f17 | 1 | /* linux/include/asm-arm/arch-msm/dma.h |
bfe645ad AH |
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> | |
a09e64fb | 19 | #include <mach/msm_iomap.h> |
bfe645ad | 20 | |
8a0f6f17 BS |
21 | struct msm_dmov_errdata { |
22 | uint32_t flush[6]; | |
23 | }; | |
24 | ||
bfe645ad AH |
25 | struct msm_dmov_cmd { |
26 | struct list_head list; | |
27 | unsigned int cmdptr; | |
8a0f6f17 BS |
28 | void (*complete_func)(struct msm_dmov_cmd *cmd, |
29 | unsigned int result, | |
30 | struct msm_dmov_errdata *err); | |
5b00f40f SM |
31 | void (*execute_func)(struct msm_dmov_cmd *cmd); |
32 | void *data; | |
bfe645ad AH |
33 | }; |
34 | ||
4ca06de3 | 35 | #ifndef CONFIG_ARCH_MSM8X60 |
bfe645ad | 36 | void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd); |
8a0f6f17 | 37 | void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful); |
bfe645ad | 38 | int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr); |
4ca06de3 DW |
39 | #else |
40 | static inline | |
41 | void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) { } | |
42 | static inline | |
43 | void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful) { } | |
44 | static inline | |
45 | int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr) { return -EIO; } | |
46 | #endif | |
bfe645ad AH |
47 | |
48 | ||
49 | #define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2)) | |
50 | #define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2)) | |
51 | #define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2)) | |
52 | #define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2)) | |
53 | ||
2f2a74e6 DW |
54 | #if defined(CONFIG_ARCH_MSM7X30) |
55 | #define DMOV_SD_AARM DMOV_SD2 | |
56 | #else | |
57 | #define DMOV_SD_AARM DMOV_SD3 | |
58 | #endif | |
bfe645ad | 59 | |
2f2a74e6 | 60 | #define DMOV_CMD_PTR(ch) DMOV_SD_AARM(0x000, ch) |
bfe645ad AH |
61 | #define DMOV_CMD_LIST (0 << 29) /* does not work */ |
62 | #define DMOV_CMD_PTR_LIST (1 << 29) /* works */ | |
63 | #define DMOV_CMD_INPUT_CFG (2 << 29) /* untested */ | |
64 | #define DMOV_CMD_OUTPUT_CFG (3 << 29) /* untested */ | |
65 | #define DMOV_CMD_ADDR(addr) ((addr) >> 3) | |
66 | ||
2f2a74e6 | 67 | #define DMOV_RSLT(ch) DMOV_SD_AARM(0x040, ch) |
bfe645ad AH |
68 | #define DMOV_RSLT_VALID (1 << 31) /* 0 == host has empties result fifo */ |
69 | #define DMOV_RSLT_ERROR (1 << 3) | |
70 | #define DMOV_RSLT_FLUSH (1 << 2) | |
71 | #define DMOV_RSLT_DONE (1 << 1) /* top pointer done */ | |
72 | #define DMOV_RSLT_USER (1 << 0) /* command with FR force result */ | |
73 | ||
2f2a74e6 DW |
74 | #define DMOV_FLUSH0(ch) DMOV_SD_AARM(0x080, ch) |
75 | #define DMOV_FLUSH1(ch) DMOV_SD_AARM(0x0C0, ch) | |
76 | #define DMOV_FLUSH2(ch) DMOV_SD_AARM(0x100, ch) | |
77 | #define DMOV_FLUSH3(ch) DMOV_SD_AARM(0x140, ch) | |
78 | #define DMOV_FLUSH4(ch) DMOV_SD_AARM(0x180, ch) | |
79 | #define DMOV_FLUSH5(ch) DMOV_SD_AARM(0x1C0, ch) | |
bfe645ad | 80 | |
2f2a74e6 | 81 | #define DMOV_STATUS(ch) DMOV_SD_AARM(0x200, ch) |
bfe645ad AH |
82 | #define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29)) |
83 | #define DMOV_STATUS_CMD_COUNT(n) (((n) >> 27) & 3) | |
84 | #define DMOV_STATUS_RSLT_VALID (1 << 1) | |
85 | #define DMOV_STATUS_CMD_PTR_RDY (1 << 0) | |
86 | ||
2f2a74e6 DW |
87 | #define DMOV_ISR DMOV_SD_AARM(0x380, 0) |
88 | ||
89 | #define DMOV_CONFIG(ch) DMOV_SD_AARM(0x300, ch) | |
bfe645ad AH |
90 | #define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2) |
91 | #define DMOV_CONFIG_FORCE_FLUSH_RSLT (1 << 1) | |
92 | #define DMOV_CONFIG_IRQ_EN (1 << 0) | |
93 | ||
94 | /* channel assignments */ | |
95 | ||
96 | #define DMOV_NAND_CHAN 7 | |
97 | #define DMOV_NAND_CRCI_CMD 5 | |
98 | #define DMOV_NAND_CRCI_DATA 4 | |
99 | ||
100 | #define DMOV_SDC1_CHAN 8 | |
101 | #define DMOV_SDC1_CRCI 6 | |
102 | ||
103 | #define DMOV_SDC2_CHAN 8 | |
104 | #define DMOV_SDC2_CRCI 7 | |
105 | ||
106 | #define DMOV_TSIF_CHAN 10 | |
107 | #define DMOV_TSIF_CRCI 10 | |
108 | ||
109 | #define DMOV_USB_CHAN 11 | |
110 | ||
111 | /* no client rate control ifc (eg, ram) */ | |
112 | #define DMOV_NONE_CRCI 0 | |
113 | ||
114 | ||
115 | /* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover | |
116 | * is going to walk a list of 32bit pointers as described below. Each | |
117 | * pointer points to a *array* of dmov_s, etc structs. The last pointer | |
118 | * in the list is marked with CMD_PTR_LP. The last struct in each array | |
119 | * is marked with CMD_LC (see below). | |
120 | */ | |
121 | #define CMD_PTR_ADDR(addr) ((addr) >> 3) | |
122 | #define CMD_PTR_LP (1 << 31) /* last pointer */ | |
123 | #define CMD_PTR_PT (3 << 29) /* ? */ | |
124 | ||
125 | /* Single Item Mode */ | |
126 | typedef struct { | |
127 | unsigned cmd; | |
128 | unsigned src; | |
129 | unsigned dst; | |
130 | unsigned len; | |
131 | } dmov_s; | |
132 | ||
133 | /* Scatter/Gather Mode */ | |
134 | typedef struct { | |
135 | unsigned cmd; | |
136 | unsigned src_dscr; | |
137 | unsigned dst_dscr; | |
138 | unsigned _reserved; | |
139 | } dmov_sg; | |
140 | ||
8a0f6f17 BS |
141 | /* Box mode */ |
142 | typedef struct { | |
143 | uint32_t cmd; | |
144 | uint32_t src_row_addr; | |
145 | uint32_t dst_row_addr; | |
146 | uint32_t src_dst_len; | |
147 | uint32_t num_rows; | |
148 | uint32_t row_offset; | |
149 | } dmov_box; | |
150 | ||
bfe645ad AH |
151 | /* bits for the cmd field of the above structures */ |
152 | ||
153 | #define CMD_LC (1 << 31) /* last command */ | |
154 | #define CMD_FR (1 << 22) /* force result -- does not work? */ | |
155 | #define CMD_OCU (1 << 21) /* other channel unblock */ | |
156 | #define CMD_OCB (1 << 20) /* other channel block */ | |
157 | #define CMD_TCB (1 << 19) /* ? */ | |
158 | #define CMD_DAH (1 << 18) /* destination address hold -- does not work?*/ | |
159 | #define CMD_SAH (1 << 17) /* source address hold -- does not work? */ | |
160 | ||
161 | #define CMD_MODE_SINGLE (0 << 0) /* dmov_s structure used */ | |
162 | #define CMD_MODE_SG (1 << 0) /* untested */ | |
163 | #define CMD_MODE_IND_SG (2 << 0) /* untested */ | |
164 | #define CMD_MODE_BOX (3 << 0) /* untested */ | |
165 | ||
166 | #define CMD_DST_SWAP_BYTES (1 << 14) /* exchange each byte n with byte n+1 */ | |
167 | #define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */ | |
168 | #define CMD_DST_SWAP_WORDS (1 << 16) /* exchange each word n with word n+1 */ | |
169 | ||
170 | #define CMD_SRC_SWAP_BYTES (1 << 11) /* exchange each byte n with byte n+1 */ | |
171 | #define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */ | |
172 | #define CMD_SRC_SWAP_WORDS (1 << 13) /* exchange each word n with word n+1 */ | |
173 | ||
174 | #define CMD_DST_CRCI(n) (((n) & 15) << 7) | |
175 | #define CMD_SRC_CRCI(n) (((n) & 15) << 3) | |
176 | ||
177 | #endif |