1 /* $NetBSD: ahcisatavar.h,v 1.1.16.2 2007/08/31 20:09:24 pavel Exp $ */
2
3 /*
4 * Copyright (c) 2006 Manuel Bouyer.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Manuel Bouyer.
17 * 4. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33 #include <dev/ic/ahcisatareg.h>
34
35 #define AHCI_DEBUG
36
37 #define DEBUG_INTR 0x01
38 #define DEBUG_XFERS 0x02
39 #define DEBUG_FUNCS 0x08
40 #define DEBUG_PROBE 0x10
41 #define DEBUG_DETACH 0x20
42 #ifdef AHCI_DEBUG
43 extern int ahcidebug_mask;
44 #define AHCIDEBUG_PRINT(args, level) \
45 if (ahcidebug_mask & (level)) \
46 printf args
47 #else
48 #define AHCIDEBUG_PRINT(args, level)
49 #endif
50
51 struct ahci_softc {
52 struct atac_softc sc_atac;
53 bus_space_tag_t sc_ahcit; /* ahci registers mapping */
54 bus_space_handle_t sc_ahcih;
55 bus_dma_tag_t sc_dmat; /* DMA memory mappings: */
56 void *sc_cmd_hdr; /* command tables and received FIS */
57 bus_dmamap_t sc_cmd_hdrd;
58
59 int sc_ncmds; /* number of command slots */
60 struct ata_channel *sc_chanarray[AHCI_MAX_PORTS];
61 struct ahci_channel {
62 struct ata_channel ata_channel; /* generic part */
63 bus_space_handle_t ahcic_scontrol;
64 bus_space_handle_t ahcic_sstatus;
65 bus_space_handle_t ahcic_serror;
66 /* pointers allocated from sc_cmd_hdrd */
67 struct ahci_r_fis *ahcic_rfis; /* received FIS */
68 bus_addr_t ahcic_bus_rfis;
69 struct ahci_cmd_header *ahcic_cmdh; /* command headers */
70 bus_addr_t ahcic_bus_cmdh;
71 /* command tables (allocated per-channel) */
72 bus_dmamap_t ahcic_cmd_tbld;
73 struct ahci_cmd_tbl *ahcic_cmd_tbl[AHCI_MAX_CMDS];
74 bus_addr_t ahcic_bus_cmd_tbl[AHCI_MAX_CMDS];
75 bus_dmamap_t ahcic_datad[AHCI_MAX_CMDS];
76 u_int32_t ahcic_cmds_active; /* active commands */
77 } sc_channels[AHCI_MAX_PORTS];
78 };
79
80 #define AHCINAME(sc) ((sc)->sc_atac.atac_dev.dv_xname)
81
82 #define AHCI_CMDH_SYNC(sc, achp, cmd, op) bus_dmamap_sync((sc)->sc_dmat, \
83 (sc)->sc_cmd_hdrd, \
84 (char *)(&(achp)->ahcic_cmdh[(cmd)]) - (char *)(sc)->sc_cmd_hdr, \
85 sizeof(struct ahci_cmd_header), (op))
86 #define AHCI_RFIS_SYNC(sc, achp, op) bus_dmamap_sync((sc)->sc_dmat, \
87 (sc)->sc_cmd_hdrd, (void *)(achp)->ahcic_rfis - (sc)->sc_cmd_hdr, \
88 AHCI_RFIS_SIZE, (op))
89 #define AHCI_CMDTBL_SYNC(sc, achp, cmd, op) bus_dmamap_sync((sc)->sc_dmat, \
90 (achp)->ahcic_cmd_tbld, AHCI_CMDTBL_SIZE * (cmd), \
91 AHCI_CMDTBL_SIZE, (op))
92
93 #define AHCI_READ(sc, reg) bus_space_read_4((sc)->sc_ahcit, \
94 (sc)->sc_ahcih, (reg))
95 #define AHCI_WRITE(sc, reg, val) bus_space_write_4((sc)->sc_ahcit, \
96 (sc)->sc_ahcih, (reg), (val))
97
98
99 void ahci_attach(struct ahci_softc *);
100
101 int ahci_intr(void *);
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