457 lines
18 KiB
C
457 lines
18 KiB
C
/*-
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* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
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* Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* ATA register defines */
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#define ATA_DATA 0 /* (RW) data */
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#define ATA_FEATURE 1 /* (W) feature */
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#define ATA_F_DMA 0x01 /* enable DMA */
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#define ATA_F_OVL 0x02 /* enable overlap */
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#define ATA_COUNT 2 /* (W) sector count */
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#define ATA_SECTOR 3 /* (RW) sector # */
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#define ATA_CYL_LSB 4 /* (RW) cylinder# LSB */
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#define ATA_CYL_MSB 5 /* (RW) cylinder# MSB */
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#define ATA_DRIVE 6 /* (W) Sector/Drive/Head */
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#define ATA_D_LBA 0x40 /* use LBA addressing */
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#define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */
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#define ATA_COMMAND 7 /* (W) command */
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#define ATA_ERROR 8 /* (R) error */
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#define ATA_E_ILI 0x01 /* illegal length */
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#define ATA_E_NM 0x02 /* no media */
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#define ATA_E_ABORT 0x04 /* command aborted */
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#define ATA_E_MCR 0x08 /* media change request */
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#define ATA_E_IDNF 0x10 /* ID not found */
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#define ATA_E_MC 0x20 /* media changed */
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#define ATA_E_UNC 0x40 /* uncorrectable data */
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#define ATA_E_ICRC 0x80 /* UDMA crc error */
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#define ATA_E_ATAPI_SENSE_MASK 0xf0 /* ATAPI sense key mask */
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#define ATA_IREASON 9 /* (R) interrupt reason */
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#define ATA_I_CMD 0x01 /* cmd (1) | data (0) */
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#define ATA_I_IN 0x02 /* read (1) | write (0) */
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#define ATA_I_RELEASE 0x04 /* released bus (1) */
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#define ATA_I_TAGMASK 0xf8 /* tag mask */
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#define ATA_STATUS 10 /* (R) status */
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#define ATA_ALTSTAT 11 /* (R) alternate status */
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#define ATA_S_ERROR 0x01 /* error */
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#define ATA_S_INDEX 0x02 /* index */
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#define ATA_S_CORR 0x04 /* data corrected */
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#define ATA_S_DRQ 0x08 /* data request */
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#define ATA_S_DSC 0x10 /* drive seek completed */
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#define ATA_S_SERVICE 0x10 /* drive needs service */
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#define ATA_S_DWF 0x20 /* drive write fault */
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#define ATA_S_DMA 0x20 /* DMA ready */
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#define ATA_S_READY 0x40 /* drive ready */
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#define ATA_S_BUSY 0x80 /* busy */
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#define ATA_CONTROL 12 /* (W) control */
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#define ATA_A_IDS 0x02 /* disable interrupts */
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#define ATA_A_RESET 0x04 /* RESET controller */
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#define ATA_A_4BIT 0x08 /* 4 head bits */
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#define ATA_A_HOB 0x80 /* High Order Byte enable */
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/* SATA register defines */
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#define ATA_SSTATUS 13
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#define ATA_SS_DET_MASK 0x0000000f
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#define ATA_SS_DET_NO_DEVICE 0x00000000
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#define ATA_SS_DET_DEV_PRESENT 0x00000001
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#define ATA_SS_DET_PHY_ONLINE 0x00000003
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#define ATA_SS_DET_PHY_OFFLINE 0x00000004
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#define ATA_SS_SPD_MASK 0x000000f0
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#define ATA_SS_SPD_NO_SPEED 0x00000000
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#define ATA_SS_SPD_GEN1 0x00000010
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#define ATA_SS_SPD_GEN2 0x00000020
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#define ATA_SS_SPD_GEN3 0x00000040
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#define ATA_SS_IPM_MASK 0x00000f00
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#define ATA_SS_IPM_NO_DEVICE 0x00000000
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#define ATA_SS_IPM_ACTIVE 0x00000100
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#define ATA_SS_IPM_PARTIAL 0x00000200
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#define ATA_SS_IPM_SLUMBER 0x00000600
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#define ATA_SERROR 14
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#define ATA_SE_DATA_CORRECTED 0x00000001
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#define ATA_SE_COMM_CORRECTED 0x00000002
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#define ATA_SE_DATA_ERR 0x00000100
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#define ATA_SE_COMM_ERR 0x00000200
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#define ATA_SE_PROT_ERR 0x00000400
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#define ATA_SE_HOST_ERR 0x00000800
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#define ATA_SE_PHY_CHANGED 0x00010000
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#define ATA_SE_PHY_IERROR 0x00020000
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#define ATA_SE_COMM_WAKE 0x00040000
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#define ATA_SE_DECODE_ERR 0x00080000
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#define ATA_SE_PARITY_ERR 0x00100000
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#define ATA_SE_CRC_ERR 0x00200000
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#define ATA_SE_HANDSHAKE_ERR 0x00400000
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#define ATA_SE_LINKSEQ_ERR 0x00800000
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#define ATA_SE_TRANSPORT_ERR 0x01000000
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#define ATA_SE_UNKNOWN_FIS 0x02000000
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#define ATA_SCONTROL 15
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#define ATA_SC_DET_MASK 0x0000000f
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#define ATA_SC_DET_IDLE 0x00000000
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#define ATA_SC_DET_RESET 0x00000001
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#define ATA_SC_DET_DISABLE 0x00000004
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#define ATA_SC_SPD_MASK 0x000000f0
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#define ATA_SC_SPD_NO_SPEED 0x00000000
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#define ATA_SC_SPD_SPEED_GEN1 0x00000010
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#define ATA_SC_SPD_SPEED_GEN2 0x00000020
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#define ATA_SC_SPD_SPEED_GEN3 0x00000040
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#define ATA_SC_IPM_MASK 0x00000f00
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#define ATA_SC_IPM_NONE 0x00000000
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#define ATA_SC_IPM_DIS_PARTIAL 0x00000100
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#define ATA_SC_IPM_DIS_SLUMBER 0x00000200
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#define ATA_SACTIVE 16
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#define AHCI_MAX_PORTS 32
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#define AHCI_MAX_SLOTS 32
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/* SATA AHCI v1.0 register defines */
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#define AHCI_CAP 0x00
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#define AHCI_CAP_NPMASK 0x0000001f
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#define AHCI_CAP_SXS 0x00000020
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#define AHCI_CAP_EMS 0x00000040
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#define AHCI_CAP_CCCS 0x00000080
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#define AHCI_CAP_NCS 0x00001F00
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#define AHCI_CAP_NCS_SHIFT 8
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#define AHCI_CAP_PSC 0x00002000
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#define AHCI_CAP_SSC 0x00004000
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#define AHCI_CAP_PMD 0x00008000
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#define AHCI_CAP_FBSS 0x00010000
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#define AHCI_CAP_SPM 0x00020000
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#define AHCI_CAP_SAM 0x00080000
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#define AHCI_CAP_ISS 0x00F00000
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#define AHCI_CAP_ISS_SHIFT 20
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#define AHCI_CAP_SCLO 0x01000000
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#define AHCI_CAP_SAL 0x02000000
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#define AHCI_CAP_SALP 0x04000000
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#define AHCI_CAP_SSS 0x08000000
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#define AHCI_CAP_SMPS 0x10000000
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#define AHCI_CAP_SSNTF 0x20000000
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#define AHCI_CAP_SNCQ 0x40000000
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#define AHCI_CAP_64BIT 0x80000000
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#define AHCI_GHC 0x04
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#define AHCI_GHC_AE 0x80000000
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#define AHCI_GHC_MRSM 0x00000004
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#define AHCI_GHC_IE 0x00000002
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#define AHCI_GHC_HR 0x00000001
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#define AHCI_IS 0x08
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#define AHCI_PI 0x0c
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#define AHCI_VS 0x10
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#define AHCI_CCCC 0x14
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#define AHCI_CCCC_TV_MASK 0xffff0000
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#define AHCI_CCCC_TV_SHIFT 16
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#define AHCI_CCCC_CC_MASK 0x0000ff00
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#define AHCI_CCCC_CC_SHIFT 8
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#define AHCI_CCCC_INT_MASK 0x000000f8
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#define AHCI_CCCC_INT_SHIFT 3
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#define AHCI_CCCC_EN 0x00000001
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#define AHCI_CCCP 0x18
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#define AHCI_CAP2 0x24
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#define AHCI_CAP2_BOH 0x00000001
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#define AHCI_CAP2_NVMP 0x00000002
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#define AHCI_CAP2_APST 0x00000004
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#define AHCI_OFFSET 0x100
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#define AHCI_STEP 0x80
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#define AHCI_P_CLB 0x00
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#define AHCI_P_CLBU 0x04
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#define AHCI_P_FB 0x08
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#define AHCI_P_FBU 0x0c
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#define AHCI_P_IS 0x10
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#define AHCI_P_IE 0x14
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#define AHCI_P_IX_DHR 0x00000001
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#define AHCI_P_IX_PS 0x00000002
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#define AHCI_P_IX_DS 0x00000004
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#define AHCI_P_IX_SDB 0x00000008
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#define AHCI_P_IX_UF 0x00000010
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#define AHCI_P_IX_DP 0x00000020
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#define AHCI_P_IX_PC 0x00000040
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#define AHCI_P_IX_DI 0x00000080
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#define AHCI_P_IX_PRC 0x00400000
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#define AHCI_P_IX_IPM 0x00800000
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#define AHCI_P_IX_OF 0x01000000
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#define AHCI_P_IX_INF 0x04000000
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#define AHCI_P_IX_IF 0x08000000
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#define AHCI_P_IX_HBD 0x10000000
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#define AHCI_P_IX_HBF 0x20000000
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#define AHCI_P_IX_TFE 0x40000000
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#define AHCI_P_IX_CPD 0x80000000
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#define AHCI_P_CMD 0x18
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#define AHCI_P_CMD_ST 0x00000001
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#define AHCI_P_CMD_SUD 0x00000002
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#define AHCI_P_CMD_POD 0x00000004
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#define AHCI_P_CMD_CLO 0x00000008
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#define AHCI_P_CMD_FRE 0x00000010
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#define AHCI_P_CMD_CCS_MASK 0x00001f00
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#define AHCI_P_CMD_CCS_SHIFT 8
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#define AHCI_P_CMD_ISS 0x00002000
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#define AHCI_P_CMD_FR 0x00004000
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#define AHCI_P_CMD_CR 0x00008000
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#define AHCI_P_CMD_CPS 0x00010000
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#define AHCI_P_CMD_PMA 0x00020000
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#define AHCI_P_CMD_HPCP 0x00040000
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#define AHCI_P_CMD_ISP 0x00080000
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#define AHCI_P_CMD_CPD 0x00100000
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#define AHCI_P_CMD_ATAPI 0x01000000
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#define AHCI_P_CMD_DLAE 0x02000000
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#define AHCI_P_CMD_ALPE 0x04000000
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#define AHCI_P_CMD_ASP 0x08000000
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#define AHCI_P_CMD_ICC_MASK 0xf0000000
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#define AHCI_P_CMD_NOOP 0x00000000
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#define AHCI_P_CMD_ACTIVE 0x10000000
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#define AHCI_P_CMD_PARTIAL 0x20000000
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#define AHCI_P_CMD_SLUMBER 0x60000000
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#define AHCI_P_TFD 0x20
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#define AHCI_P_SIG 0x24
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#define AHCI_P_SSTS 0x28
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#define AHCI_P_SCTL 0x2c
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#define AHCI_P_SERR 0x30
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#define AHCI_P_SACT 0x34
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#define AHCI_P_CI 0x38
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#define AHCI_P_SNTF 0x3C
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#define AHCI_P_FBS 0x40
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/* Just to be sure, if building as module. */
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#if MAXPHYS < 512 * 1024
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#undef MAXPHYS
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#define MAXPHYS 512 * 1024
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#endif
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/* Pessimistic prognosis on number of required S/G entries */
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#define AHCI_SG_ENTRIES (roundup(btoc(MAXPHYS) + 1, 8))
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/* Command list. 32 commands. First, 1Kbyte aligned. */
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#define AHCI_CL_OFFSET 0
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#define AHCI_CL_SIZE 32
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/* Command tables. Up to 32 commands, Each, 128byte aligned. */
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#define AHCI_CT_OFFSET (AHCI_CL_OFFSET + AHCI_CL_SIZE * AHCI_MAX_SLOTS)
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#define AHCI_CT_SIZE (128 + AHCI_SG_ENTRIES * 16)
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/* Total main work area. */
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#define AHCI_WORK_SIZE (AHCI_CT_OFFSET + AHCI_CT_SIZE * ch->numslots)
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struct ahci_dma_prd {
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u_int64_t dba;
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u_int32_t reserved;
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u_int32_t dbc; /* 0 based */
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#define AHCI_PRD_MASK 0x003fffff /* max 4MB */
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#define AHCI_PRD_MAX (AHCI_PRD_MASK + 1)
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#define AHCI_PRD_IPC (1 << 31)
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} __packed;
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struct ahci_cmd_tab {
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u_int8_t cfis[64];
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u_int8_t acmd[32];
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u_int8_t reserved[32];
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struct ahci_dma_prd prd_tab[AHCI_SG_ENTRIES];
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} __packed;
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struct ahci_cmd_list {
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u_int16_t cmd_flags;
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#define AHCI_CMD_ATAPI 0x0020
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#define AHCI_CMD_WRITE 0x0040
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#define AHCI_CMD_PREFETCH 0x0080
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#define AHCI_CMD_RESET 0x0100
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#define AHCI_CMD_BIST 0x0200
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#define AHCI_CMD_CLR_BUSY 0x0400
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u_int16_t prd_length; /* PRD entries */
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u_int32_t bytecount;
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u_int64_t cmd_table_phys; /* 128byte aligned */
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} __packed;
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/* misc defines */
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#define ATA_IRQ_RID 0
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#define ATA_INTR_FLAGS (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY)
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struct ata_dmaslot {
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bus_dmamap_t data_map; /* data DMA map */
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int nsegs; /* Number of segs loaded */
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};
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/* structure holding DMA related information */
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struct ata_dma {
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bus_dma_tag_t work_tag; /* workspace DMA tag */
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bus_dmamap_t work_map; /* workspace DMA map */
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uint8_t *work; /* workspace */
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bus_addr_t work_bus; /* bus address of work */
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bus_dma_tag_t rfis_tag; /* RFIS list DMA tag */
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bus_dmamap_t rfis_map; /* RFIS list DMA map */
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uint8_t *rfis; /* FIS receive area */
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bus_addr_t rfis_bus; /* bus address of rfis */
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bus_dma_tag_t data_tag; /* data DMA tag */
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u_int64_t max_address; /* highest DMA'able address */
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};
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enum ahci_slot_states {
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AHCI_SLOT_EMPTY,
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AHCI_SLOT_LOADING,
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AHCI_SLOT_RUNNING,
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AHCI_SLOT_EXECUTING
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};
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struct ahci_slot {
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device_t dev; /* Device handle */
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u_int8_t slot; /* Number of this slot */
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enum ahci_slot_states state; /* Slot state */
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union ccb *ccb; /* CCB occupying slot */
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struct ata_dmaslot dma; /* DMA data of this slot */
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struct callout timeout; /* Execution timeout */
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};
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struct ahci_device {
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int revision;
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int mode;
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u_int bytecount;
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u_int tags;
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};
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/* structure describing an ATA channel */
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struct ahci_channel {
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device_t dev; /* Device handle */
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int unit; /* Physical channel */
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struct resource *r_mem; /* Memory of this channel */
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struct resource *r_irq; /* Interrupt of this channel */
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void *ih; /* Interrupt handle */
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struct ata_dma dma; /* DMA data */
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struct cam_sim *sim;
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struct cam_path *path;
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uint32_t caps; /* Controller capabilities */
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uint32_t caps2; /* Controller capabilities */
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int quirks;
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int numslots; /* Number of present slots */
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int pm_level; /* power management level */
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struct ahci_slot slot[AHCI_MAX_SLOTS];
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union ccb *hold[AHCI_MAX_SLOTS];
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struct mtx mtx; /* state lock */
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int devices; /* What is present */
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int pm_present; /* PM presence reported */
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uint32_t oslots; /* Occupied slots */
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uint32_t rslots; /* Running slots */
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uint32_t aslots; /* Slots with atomic commands */
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int numrslots; /* Number of running slots */
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int numtslots; /* Number of tagged slots */
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int readlog; /* Our READ LOG active */
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int fatalerr; /* Fatal error happend */
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int lastslot; /* Last used slot */
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int taggedtarget; /* Last tagged target */
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union ccb *frozen; /* Frozen command */
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struct callout pm_timer; /* Power management events */
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struct ahci_device user[16]; /* User-specified settings */
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struct ahci_device curr[16]; /* Current settings */
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};
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/* structure describing a AHCI controller */
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struct ahci_controller {
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device_t dev;
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int r_rid;
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struct resource *r_mem;
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struct rman sc_iomem;
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struct ahci_controller_irq {
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struct ahci_controller *ctlr;
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struct resource *r_irq;
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void *handle;
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int r_irq_rid;
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int mode;
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#define AHCI_IRQ_MODE_ALL 0
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#define AHCI_IRQ_MODE_AFTER 1
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#define AHCI_IRQ_MODE_ONE 2
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} irqs[16];
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uint32_t caps; /* Controller capabilities */
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uint32_t caps2; /* Controller capabilities */
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int quirks;
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int numirqs;
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int channels;
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int ichannels;
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int ccc; /* CCC timeout */
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int cccv; /* CCC vector */
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struct {
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void (*function)(void *);
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void *argument;
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} interrupt[AHCI_MAX_PORTS];
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};
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enum ahci_err_type {
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AHCI_ERR_NONE, /* No error */
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AHCI_ERR_INVALID, /* Error detected by us before submitting. */
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AHCI_ERR_INNOCENT, /* Innocent victim. */
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AHCI_ERR_TFE, /* Task File Error. */
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AHCI_ERR_SATA, /* SATA error. */
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AHCI_ERR_TIMEOUT, /* Command execution timeout. */
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AHCI_ERR_NCQ, /* NCQ command error. CCB should be put on hold
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* until READ LOG executed to reveal error. */
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};
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/* macros to hide busspace uglyness */
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#define ATA_INB(res, offset) \
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bus_read_1((res), (offset))
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#define ATA_INW(res, offset) \
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bus_read_2((res), (offset))
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#define ATA_INL(res, offset) \
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bus_read_4((res), (offset))
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#define ATA_INSW(res, offset, addr, count) \
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bus_read_multi_2((res), (offset), (addr), (count))
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#define ATA_INSW_STRM(res, offset, addr, count) \
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bus_read_multi_stream_2((res), (offset), (addr), (count))
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#define ATA_INSL(res, offset, addr, count) \
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bus_read_multi_4((res), (offset), (addr), (count))
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#define ATA_INSL_STRM(res, offset, addr, count) \
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bus_read_multi_stream_4((res), (offset), (addr), (count))
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#define ATA_OUTB(res, offset, value) \
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bus_write_1((res), (offset), (value))
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#define ATA_OUTW(res, offset, value) \
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bus_write_2((res), (offset), (value))
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#define ATA_OUTL(res, offset, value) \
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bus_write_4((res), (offset), (value))
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#define ATA_OUTSW(res, offset, addr, count) \
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bus_write_multi_2((res), (offset), (addr), (count))
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#define ATA_OUTSW_STRM(res, offset, addr, count) \
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bus_write_multi_stream_2((res), (offset), (addr), (count))
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#define ATA_OUTSL(res, offset, addr, count) \
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bus_write_multi_4((res), (offset), (addr), (count))
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#define ATA_OUTSL_STRM(res, offset, addr, count) \
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bus_write_multi_stream_4((res), (offset), (addr), (count))
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