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gerrit-public.fairphone.software / kernel / msm-4.9 / ca2ac5cc9548e954b295de16158a5a7e3b97873b / . / arch / arm / mach-pnx4008 / include / mach / dma.h
blob: f094bf8bfb1819c96ecd43349091bc3fda182433 [file] [log] [blame]
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]1/*
2 * arch/arm/mach-pnx4008/include/mach/dma.h
3 *
4 * PNX4008 DMA header file
5 *
6 * Author: Vitaly Wool
7 * Copyright: MontaVista Software Inc. (c) 2005
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#ifndef __ASM_ARCH_DMA_H
15#define __ASM_ARCH_DMA_H
16
17#include "platform.h"
18
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame]19#define MAX_DMA_CHANNELS 8
20
21#define DMAC_BASE IO_ADDRESS(PNX4008_DMA_CONFIG_BASE)
22#define DMAC_INT_STAT (DMAC_BASE + 0x0000)
23#define DMAC_INT_TC_STAT (DMAC_BASE + 0x0004)
24#define DMAC_INT_TC_CLEAR (DMAC_BASE + 0x0008)
25#define DMAC_INT_ERR_STAT (DMAC_BASE + 0x000c)
26#define DMAC_INT_ERR_CLEAR (DMAC_BASE + 0x0010)
27#define DMAC_SOFT_SREQ (DMAC_BASE + 0x0024)
28#define DMAC_CONFIG (DMAC_BASE + 0x0030)
29#define DMAC_Cx_SRC_ADDR(c) (DMAC_BASE + 0x0100 + (c) * 0x20)
30#define DMAC_Cx_DEST_ADDR(c) (DMAC_BASE + 0x0104 + (c) * 0x20)
31#define DMAC_Cx_LLI(c) (DMAC_BASE + 0x0108 + (c) * 0x20)
32#define DMAC_Cx_CONTROL(c) (DMAC_BASE + 0x010c + (c) * 0x20)
33#define DMAC_Cx_CONFIG(c) (DMAC_BASE + 0x0110 + (c) * 0x20)
34
35enum {
36 WIDTH_BYTE = 0,
37 WIDTH_HWORD,
38 WIDTH_WORD
39};
40
41enum {
42 FC_MEM2MEM_DMA,
43 FC_MEM2PER_DMA,
44 FC_PER2MEM_DMA,
45 FC_PER2PER_DMA,
46 FC_PER2PER_DPER,
47 FC_MEM2PER_PER,
48 FC_PER2MEM_PER,
49 FC_PER2PER_SPER
50};
51
52enum {
53 DMA_INT_UNKNOWN = 0,
54 DMA_ERR_INT = 1,
55 DMA_TC_INT = 2,
56};
57
58enum {
59 DMA_BUFFER_ALLOCATED = 1,
60 DMA_HAS_LL = 2,
61};
62
63enum {
64 PER_CAM_DMA_1 = 0,
65 PER_NDF_FLASH = 1,
66 PER_MBX_SLAVE_FIFO = 2,
67 PER_SPI2_REC_XMIT = 3,
68 PER_MS_SD_RX_XMIT = 4,
69 PER_HS_UART_1_XMIT = 5,
70 PER_HS_UART_1_RX = 6,
71 PER_HS_UART_2_XMIT = 7,
72 PER_HS_UART_2_RX = 8,
73 PER_HS_UART_7_XMIT = 9,
74 PER_HS_UART_7_RX = 10,
75 PER_SPI1_REC_XMIT = 11,
76 PER_MLC_NDF_SREC = 12,
77 PER_CAM_DMA_2 = 13,
78 PER_PRNG_INFIFO = 14,
79 PER_PRNG_OUTFIFO = 15,
80};
81
82struct pnx4008_dma_ch_ctrl {
83 int tc_mask;
84 int cacheable;
85 int bufferable;
86 int priv_mode;
87 int di;
88 int si;
89 int dest_ahb1;
90 int src_ahb1;
91 int dwidth;
92 int swidth;
93 int dbsize;
94 int sbsize;
95 int tr_size;
96};
97
98struct pnx4008_dma_ch_config {
99 int halt;
100 int active;
101 int lock;
102 int itc;
103 int ie;
104 int flow_cntrl;
105 int dest_per;
106 int src_per;
107};
108
109struct pnx4008_dma_ll {
110 unsigned long src_addr;
111 unsigned long dest_addr;
112 u32 next_dma;
113 unsigned long ch_ctrl;
114 struct pnx4008_dma_ll *next;
115 int flags;
116 void *alloc_data;
117 int (*free) (void *);
118};
119
120struct pnx4008_dma_config {
121 int is_ll;
122 unsigned long src_addr;
123 unsigned long dest_addr;
124 unsigned long ch_ctrl;
125 unsigned long ch_cfg;
126 struct pnx4008_dma_ll *ll;
127 u32 ll_dma;
128 int flags;
129 void *alloc_data;
130 int (*free) (void *);
131};
132
133extern struct pnx4008_dma_ll *pnx4008_alloc_ll_entry(dma_addr_t *);
134extern void pnx4008_free_ll_entry(struct pnx4008_dma_ll *, dma_addr_t);
135extern void pnx4008_free_ll(u32 ll_dma, struct pnx4008_dma_ll *);
136
137extern int pnx4008_request_channel(char *, int,
138 void (*)(int, int, void *),
139 void *);
140extern void pnx4008_free_channel(int);
141extern int pnx4008_config_dma(int, int, int);
142extern int pnx4008_dma_pack_control(const struct pnx4008_dma_ch_ctrl *,
143 unsigned long *);
144extern int pnx4008_dma_parse_control(unsigned long,
145 struct pnx4008_dma_ch_ctrl *);
146extern int pnx4008_dma_pack_config(const struct pnx4008_dma_ch_config *,
147 unsigned long *);
148extern int pnx4008_dma_parse_config(unsigned long,
149 struct pnx4008_dma_ch_config *);
150extern int pnx4008_config_channel(int, struct pnx4008_dma_config *);
151extern int pnx4008_channel_get_config(int, struct pnx4008_dma_config *);
152extern int pnx4008_dma_ch_enable(int);
153extern int pnx4008_dma_ch_disable(int);
154extern int pnx4008_dma_ch_enabled(int);
155extern void pnx4008_dma_split_head_entry(struct pnx4008_dma_config *,
156 struct pnx4008_dma_ch_ctrl *);
157extern void pnx4008_dma_split_ll_entry(struct pnx4008_dma_ll *,
158 struct pnx4008_dma_ch_ctrl *);
159
160#endif /* _ASM_ARCH_DMA_H */