1 | /* $NetBSD: ninjaata32var.h,v 1.5 2011/02/21 02:32:00 itohy Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2006 ITOH Yasufumi. |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
18 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS |
20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
26 | * THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #ifndef _NJATA32VAR_H_ |
30 | #define _NJATA32VAR_H_ |
31 | |
32 | #define NJATA32NAME(sc) (device_xname(sc->sc_wdcdev.sc_atac.atac_dev)) |
33 | |
34 | /* ??? */ |
35 | #define NJATA32_MAX_XFER (64 * 1024) |
36 | |
37 | /* |
38 | * DMA page |
39 | */ |
40 | /* # device */ |
41 | #define NJATA32_NUM_DEV 2 |
42 | /* # scatter/gather table entries */ |
43 | #define NJATA32_NUM_SG NJATA32_SGT_MAXENTRY |
44 | |
45 | struct njata32_dma_page { |
46 | /* |
47 | * scatter/gather transfer table |
48 | */ |
49 | struct njata32_sgtable dp_sg[NJATA32_NUM_DEV][NJATA32_NUM_SG]; |
50 | }; |
51 | |
52 | #define NJATA32_NCHAN 1 /* only one channel */ |
53 | |
54 | struct njata32_softc { |
55 | struct wdc_softc sc_wdcdev; /* common wdc definitions */ |
56 | |
57 | unsigned sc_flags; |
58 | #define NJATA32_IO_MAPPED 0x00000001 |
59 | #define NJATA32_MEM_MAPPED 0x00000002 |
60 | #define NJATA32_CMDPG_MAPPED 0x00000004 |
61 | |
62 | unsigned sc_devflags; |
63 | |
64 | /* interrupt handle */ |
65 | void *sc_ih; |
66 | |
67 | struct ninjaata32_channel { /* per-channel data */ |
68 | struct ata_channel ch_ata_channel; /* generic part */ |
69 | } sc_ch[NJATA32_NCHAN]; |
70 | |
71 | struct ata_channel *sc_wdc_chanarray[NJATA32_NCHAN]; |
72 | struct ata_queue sc_wdc_chqueue; |
73 | struct wdc_regs sc_wdc_regs; |
74 | #define NJATA32_REGT(sc) (sc)->sc_wdc_regs.cmd_iot |
75 | #define NJATA32_REGH(sc) (sc)->sc_wdc_regs.cmd_baseioh |
76 | |
77 | /* for DMA */ |
78 | bus_dma_tag_t sc_dmat; |
79 | struct njata32_dma_page *sc_sgtpg; /* scatter/gather table page */ |
80 | #if 0 |
81 | bus_addr_t sc_sgt_dma; |
82 | #endif |
83 | bus_dma_segment_t sc_sgt_seg; |
84 | bus_dmamap_t sc_dmamap_sgt; |
85 | int sc_sgt_nsegs; |
86 | |
87 | int sc_piobm_nsegs; |
88 | |
89 | uint8_t sc_timing_pio; |
90 | #if 0 /* ATA DMA is currently unused */ |
91 | uint8_t sc_timing_dma; |
92 | #endif |
93 | |
94 | uint8_t sc_atawait; |
95 | |
96 | /* per-device structure */ |
97 | struct njata32_device { |
98 | /* DMA resource */ |
99 | struct njata32_sgtable *d_sgt; /* for host */ |
100 | bus_addr_t d_sgt_dma; /* for device */ |
101 | bus_dmamap_t d_dmamap_xfer; |
102 | unsigned d_flags; |
103 | #define NJATA32_DEV_DMA_MAPPED 0x0001 |
104 | #define NJATA32_DEV_DMA_READ 0x0002 |
105 | #define NJATA32_DEV_DMA_ATAPI 0x0004 |
106 | #define NJATA32_DEV_XFER_INTR 0x0100 /* only for sc_devflags */ |
107 | #define NJATA32_DEV_GOT_XFER_INTR 0x0200 /* only for sc_devflags */ |
108 | #define NJATA32_DEV_DMA_STARTED 0x8000 /* for diag */ |
109 | } sc_dev[NJATA32_NUM_DEV]; |
110 | }; |
111 | |
112 | #ifdef _KERNEL |
113 | void njata32_attach(struct njata32_softc *); |
114 | int njata32_detach(struct njata32_softc *, int); |
115 | int njata32_intr(void *); |
116 | #endif |
117 | |
118 | #endif /* _NJATA32VAR_H_ */ |
119 | |