1 /* $NetBSD: ahcisatavar.h,v 1.2 2007/11/12 20:10:32 joerg 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 void ahci_enable_intrs(struct ahci_softc *); 101 int ahci_reset(struct ahci_softc *); 102 void ahci_setup_ports(struct ahci_softc *); 103 void ahci_reprobe_drives(struct ahci_softc *); 104 105 int ahci_intr(void *); 106 107