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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> | |
bfe645ad | 19 | |
8a0f6f17 BS |
20 | struct msm_dmov_errdata { |
21 | uint32_t flush[6]; | |
22 | }; | |
23 | ||
bfe645ad AH |
24 | struct msm_dmov_cmd { |
25 | struct list_head list; | |
26 | unsigned int cmdptr; | |
8a0f6f17 BS |
27 | void (*complete_func)(struct msm_dmov_cmd *cmd, |
28 | unsigned int result, | |
29 | struct msm_dmov_errdata *err); | |
5b00f40f SM |
30 | void (*execute_func)(struct msm_dmov_cmd *cmd); |
31 | void *data; | |
bfe645ad AH |
32 | }; |
33 | ||
4ca06de3 | 34 | #ifndef CONFIG_ARCH_MSM8X60 |
bfe645ad | 35 | void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd); |
8a0f6f17 | 36 | void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful); |
bfe645ad | 37 | int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr); |
4ca06de3 DW |
38 | #else |
39 | static inline | |
40 | void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) { } | |
41 | static inline | |
42 | void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful) { } | |
43 | static inline | |
44 | int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr) { return -EIO; } | |
45 | #endif | |
bfe645ad | 46 | |
bfe645ad AH |
47 | #define DMOV_CMD_LIST (0 << 29) /* does not work */ |
48 | #define DMOV_CMD_PTR_LIST (1 << 29) /* works */ | |
49 | #define DMOV_CMD_INPUT_CFG (2 << 29) /* untested */ | |
50 | #define DMOV_CMD_OUTPUT_CFG (3 << 29) /* untested */ | |
51 | #define DMOV_CMD_ADDR(addr) ((addr) >> 3) | |
52 | ||
bfe645ad AH |
53 | #define DMOV_RSLT_VALID (1 << 31) /* 0 == host has empties result fifo */ |
54 | #define DMOV_RSLT_ERROR (1 << 3) | |
55 | #define DMOV_RSLT_FLUSH (1 << 2) | |
56 | #define DMOV_RSLT_DONE (1 << 1) /* top pointer done */ | |
57 | #define DMOV_RSLT_USER (1 << 0) /* command with FR force result */ | |
58 | ||
bfe645ad AH |
59 | #define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29)) |
60 | #define DMOV_STATUS_CMD_COUNT(n) (((n) >> 27) & 3) | |
61 | #define DMOV_STATUS_RSLT_VALID (1 << 1) | |
62 | #define DMOV_STATUS_CMD_PTR_RDY (1 << 0) | |
63 | ||
bfe645ad AH |
64 | #define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2) |
65 | #define DMOV_CONFIG_FORCE_FLUSH_RSLT (1 << 1) | |
66 | #define DMOV_CONFIG_IRQ_EN (1 << 0) | |
67 | ||
68 | /* channel assignments */ | |
69 | ||
70 | #define DMOV_NAND_CHAN 7 | |
71 | #define DMOV_NAND_CRCI_CMD 5 | |
72 | #define DMOV_NAND_CRCI_DATA 4 | |
73 | ||
74 | #define DMOV_SDC1_CHAN 8 | |
75 | #define DMOV_SDC1_CRCI 6 | |
76 | ||
77 | #define DMOV_SDC2_CHAN 8 | |
78 | #define DMOV_SDC2_CRCI 7 | |
79 | ||
80 | #define DMOV_TSIF_CHAN 10 | |
81 | #define DMOV_TSIF_CRCI 10 | |
82 | ||
83 | #define DMOV_USB_CHAN 11 | |
84 | ||
85 | /* no client rate control ifc (eg, ram) */ | |
86 | #define DMOV_NONE_CRCI 0 | |
87 | ||
88 | ||
89 | /* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover | |
90 | * is going to walk a list of 32bit pointers as described below. Each | |
91 | * pointer points to a *array* of dmov_s, etc structs. The last pointer | |
92 | * in the list is marked with CMD_PTR_LP. The last struct in each array | |
93 | * is marked with CMD_LC (see below). | |
94 | */ | |
95 | #define CMD_PTR_ADDR(addr) ((addr) >> 3) | |
96 | #define CMD_PTR_LP (1 << 31) /* last pointer */ | |
97 | #define CMD_PTR_PT (3 << 29) /* ? */ | |
98 | ||
99 | /* Single Item Mode */ | |
100 | typedef struct { | |
101 | unsigned cmd; | |
102 | unsigned src; | |
103 | unsigned dst; | |
104 | unsigned len; | |
105 | } dmov_s; | |
106 | ||
107 | /* Scatter/Gather Mode */ | |
108 | typedef struct { | |
109 | unsigned cmd; | |
110 | unsigned src_dscr; | |
111 | unsigned dst_dscr; | |
112 | unsigned _reserved; | |
113 | } dmov_sg; | |
114 | ||
8a0f6f17 BS |
115 | /* Box mode */ |
116 | typedef struct { | |
117 | uint32_t cmd; | |
118 | uint32_t src_row_addr; | |
119 | uint32_t dst_row_addr; | |
120 | uint32_t src_dst_len; | |
121 | uint32_t num_rows; | |
122 | uint32_t row_offset; | |
123 | } dmov_box; | |
124 | ||
bfe645ad AH |
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 |