diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-cris/arch-v10/svinto.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-cris/arch-v10/svinto.h')
-rw-r--r-- | include/asm-cris/arch-v10/svinto.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v10/svinto.h b/include/asm-cris/arch-v10/svinto.h new file mode 100644 index 000000000000..0881a1af7cee --- /dev/null +++ b/include/asm-cris/arch-v10/svinto.h | |||
@@ -0,0 +1,64 @@ | |||
1 | #ifndef _ASM_CRIS_SVINTO_H | ||
2 | #define _ASM_CRIS_SVINTO_H | ||
3 | |||
4 | #include "sv_addr_ag.h" | ||
5 | |||
6 | extern unsigned int genconfig_shadow; /* defined and set in head.S */ | ||
7 | |||
8 | /* dma stuff */ | ||
9 | |||
10 | enum { /* Available in: */ | ||
11 | d_eol = (1 << 0), /* flags */ | ||
12 | d_eop = (1 << 1), /* flags & status */ | ||
13 | d_wait = (1 << 2), /* flags */ | ||
14 | d_int = (1 << 3), /* flags */ | ||
15 | d_txerr = (1 << 4), /* flags */ | ||
16 | d_stop = (1 << 4), /* status */ | ||
17 | d_ecp = (1 << 4), /* flags & status */ | ||
18 | d_pri = (1 << 5), /* flags & status */ | ||
19 | d_alignerr = (1 << 6), /* status */ | ||
20 | d_crcerr = (1 << 7) /* status */ | ||
21 | }; | ||
22 | |||
23 | /* Do remember that DMA does not go through the MMU and needs | ||
24 | * a real physical address, not an address virtually mapped or | ||
25 | * paged. Therefore the buf/next ptrs below are unsigned long instead | ||
26 | * of void * to give a warning if you try to put a pointer directly | ||
27 | * to them instead of going through virt_to_phys/phys_to_virt. | ||
28 | */ | ||
29 | |||
30 | typedef struct etrax_dma_descr { | ||
31 | unsigned short sw_len; /* 0-1 */ | ||
32 | unsigned short ctrl; /* 2-3 */ | ||
33 | unsigned long next; /* 4-7 */ | ||
34 | unsigned long buf; /* 8-11 */ | ||
35 | unsigned short hw_len; /* 12-13 */ | ||
36 | unsigned char status; /* 14 */ | ||
37 | unsigned char fifo_len; /* 15 */ | ||
38 | } etrax_dma_descr; | ||
39 | |||
40 | |||
41 | /* Use this for constant numbers only */ | ||
42 | #define RESET_DMA_NUM( n ) \ | ||
43 | *R_DMA_CH##n##_CMD = IO_STATE( R_DMA_CH0_CMD, cmd, reset ) | ||
44 | |||
45 | /* Use this for constant numbers or symbols, | ||
46 | * having two macros makes it possible to use constant expressions. | ||
47 | */ | ||
48 | #define RESET_DMA( n ) RESET_DMA_NUM( n ) | ||
49 | |||
50 | |||
51 | /* Use this for constant numbers only */ | ||
52 | #define WAIT_DMA_NUM( n ) \ | ||
53 | while( (*R_DMA_CH##n##_CMD & IO_MASK( R_DMA_CH0_CMD, cmd )) != \ | ||
54 | IO_STATE( R_DMA_CH0_CMD, cmd, hold ) ) | ||
55 | |||
56 | /* Use this for constant numbers or symbols | ||
57 | * having two macros makes it possible to use constant expressions. | ||
58 | */ | ||
59 | #define WAIT_DMA( n ) WAIT_DMA_NUM( n ) | ||
60 | |||
61 | extern void prepare_rx_descriptor(struct etrax_dma_descr *desc); | ||
62 | extern void flush_etrax_cache(void); | ||
63 | |||
64 | #endif | ||