diff options
Diffstat (limited to 'sys/include/dev/ic')
| -rw-r--r-- | sys/include/dev/ic/ahciregs.h | 142 | ||||
| -rw-r--r-- | sys/include/dev/ic/ahcivar.h | 137 |
2 files changed, 279 insertions, 0 deletions
diff --git a/sys/include/dev/ic/ahciregs.h b/sys/include/dev/ic/ahciregs.h new file mode 100644 index 0000000..b2da5b7 --- /dev/null +++ b/sys/include/dev/ic/ahciregs.h @@ -0,0 +1,142 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _AHCIREGS_H_ +#define _AHCIREGS_H_ + +#include <sys/types.h> +#include <sys/cdefs.h> + +struct hba_port { + volatile uint64_t clb; /* Command list base (1k-byte aligned) */ + volatile uint64_t fb; /* FIS base (256-byte aligned) */ + volatile uint32_t is; /* Interrupt status */ + volatile uint32_t ie; /* Interrupt enable */ + volatile uint32_t cmd; /* Command and status */ + volatile uint32_t rsvd0; /* Reserved */ + volatile uint32_t tfd; /* Task file data */ + volatile uint32_t sig; /* Signature */ + volatile uint32_t ssts; /* SATA status */ + volatile uint32_t sctl; /* SATA control */ + volatile uint32_t serr; /* SATA error */ + volatile uint32_t sact; /* SATA active */ + volatile uint32_t ci; /* Command issue */ + volatile uint32_t sntf; /* SATA notification */ + volatile uint32_t fbs; /* FIS-based switch control */ + volatile uint32_t rsvd1[11]; + volatile uint32_t vendor[4]; +}; + +struct hba_memspace { + volatile uint32_t cap; /* Host Capabilities */ + volatile uint32_t ghc; /* Global host control */ + volatile uint32_t is; /* Interrupt status */ + volatile uint32_t pi; /* Ports implemented */ + volatile uint32_t vs; /* Version */ + volatile uint32_t ccc_ctl; /* Command completion coalescing control */ + volatile uint32_t ccc_pts; /* Command completion coalescing ports */ + volatile uint32_t em_loc; /* Enclosure management location */ + volatile uint32_t em_ctl; /* Enclosure management control */ + volatile uint32_t cap2; /* Host capabilities extended */ + volatile uint32_t bohc; /* BIOS/OS Handoff Control and Status */ + volatile uint8_t rsvd[0x74]; /* Reserved */ + volatile uint8_t vendor[0x60]; /* Vendor specific */ + struct hba_port ports[1]; +}; + +/* Global host control bits */ +#define AHCI_GHC_AE __BIT(31) /* AHCI enable */ +#define AHCI_GHC_IE __BIT(1) /* Interrupt enable */ +#define AHCI_GHC_HR __BIT(0) /* HBA reset */ + +/* AHCI port signatures */ +#define AHCI_SIG_ATA 0x00000101 +#define AHCI_SIG_SEMB 0xC33C0101 +#define AHCI_SIG_PM 0x96690101 + +/* + * Port SATA status + * See section 3.3.10 of the AHCI spec. + */ +#define AHCI_PXSSTS_DET(SSTS) (SSTS & 0xF) +#define AHCI_PXSSTS_IPM(SSTS) ((SSTS >> 8) & 0xF) + +/* + * Port SATA control bits + * See section 3.3.11 of the AHCI spec. + */ +#define AHCI_PXSCTL_DET(SCTL) (SCTL & 0xF) + +/* + * Port command and status bits + * See section 3.3.7 of the AHCI spec. + */ +#define AHCI_PXCMD_ST __BIT(0) /* Start */ +#define AHCI_PXCMD_FRE __BIT(4) /* FIS Receive Enable */ +#define AHCI_PXCMD_FR __BIT(14) /* FIS Receive Running */ +#define AHCI_PXCMD_CR __BIT(15) /* Command List Running */ + +/* + * Interrupt status bits + * See section 3.3.5 of the AHCI spec. + */ +#define AHCI_PXIS_TFES __BIT(31) + +/* + * Task file data bits + * See section 3.3.8 of the AHCI spec. + */ +#define AHCI_PXTFD_ERR __BIT(0) +#define AHCI_PXTFD_DRQ __BIT(3) +#define AHCI_PXTFD_BSY __BIT(7) + +/* + * Capability bits + * See section 3.1.1 of the AHCI spec. + */ +#define AHCI_CAP_NP(CAP) (CAP & 0x1F) /* Number of ports */ +#define AHCI_CAP_NCS(CAP) ((CAP >> 8) & 0x1F) /* Number of command slots */ + +/* + * Device detection (DET) and Interface power + * management (IPM) values + * See section 3.3.10 of the AHCI spec. + */ +#define AHCI_DET_NULL 0 /* No device detected */ +#define AHCI_DET_PRESENT 1 /* Device present (no PHY comm) */ +#define AHCI_DET_COMM 3 /* Device present and phy comm established */ +#define AHCI_IPM_ACTIVE 1 + +/* + * Device detection initialization values + * See section 3.3.11 of the AHCI spec. + */ +#define AHCI_DET_COMRESET 1 + +#endif /* !_AHCIREGS_H_ */ diff --git a/sys/include/dev/ic/ahcivar.h b/sys/include/dev/ic/ahcivar.h new file mode 100644 index 0000000..72ca198 --- /dev/null +++ b/sys/include/dev/ic/ahcivar.h @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _AHCIVAR_H_ +#define _AHCIVAR_H_ + +#include <sys/types.h> +#include <sys/cdefs.h> +#include <sys/mutex.h> +#include <dev/ic/ahciregs.h> + +struct ata_identity { + uint16_t rsvd0 : 1; + uint16_t unused0 : 1; + uint16_t incomplete : 1; + uint16_t unused1 : 3; + uint16_t fixed_dev : 1; + uint16_t removable : 1; + uint16_t unused2 : 7; + uint16_t device_type : 1; + uint16_t ncylinders; + uint16_t specific_config; + uint16_t nheads; + uint16_t unused3[2]; + uint16_t sectors_per_track; + uint16_t vendor[3]; + char serial_number[20]; + uint16_t unused4[2]; + uint16_t unused5; + char firmware_rev[8]; + char model_number[40]; + char pad[256]; +}; + +/* Physical region descriptor table entry */ +struct ahci_prdt_entry { + uintptr_t dba; /* Data base address */ + uint32_t rsvd0; /* Reserved */ + uint32_t dbc : 22; /* Count */ + uint16_t rsvd1 : 9; /* Reserved */ + uint8_t i : 1; /* Interrupt on completion */ +}; + +/* Command header */ +struct ahci_cmd_hdr { + uint8_t cfl : 5; /* Command FIS length */ + uint8_t a : 1; /* ATAPI */ + uint8_t w : 1; /* Write */ + uint8_t p : 1; /* Prefetchable */ + uint8_t r : 1; /* Reset */ + uint8_t c : 1; /* Clear busy upon R_OK */ + uint8_t rsvd0 : 1; /* Reserved */ + uint8_t pmp : 4; /* Port multiplier port */ + uint16_t prdtl; /* PRDT length (in entries) */ + volatile uint32_t prdbc; /* PRDT bytes transferred count */ + uintptr_t ctba; /* Command table descriptor base addr */ + uint32_t rsvd1[4]; /* Reserved */ +}; + +/* Command table */ +struct ahci_cmdtab { + uint8_t cfis[64]; + uint8_t acmd[16]; + uint8_t rsvd[48]; + struct ahci_prdt_entry prdt[1]; +}; + +struct ahci_fis_h2d { + uint8_t type; + uint8_t pmp : 4; + uint8_t rsvd0 : 3; + uint8_t c : 1; + uint8_t command; + uint8_t featurel; + uint8_t lba0; + uint8_t lba1; + uint8_t lba2; + uint8_t device; + uint8_t lba3; + uint8_t lba4; + uint8_t lba5; + uint8_t featureh; + uint8_t countl; + uint8_t counth; + uint8_t icc; + uint8_t control; + uint8_t rsvd1[4]; +}; + +struct ahci_hba { + struct hba_memspace *abar; + struct ahci_cmd_hdr *cmdlist; + uint32_t ncmdslots; + uint32_t nports; + struct mutex lock; +}; + +/* Commands */ +#define ATA_CMD_NOP 0x00 +#define ATA_CMD_IDENTIFY 0xEC + +/* FIS types */ +#define FIS_TYPE_H2D 0x27 +#define FIS_TYPE_D2H 0x34 + +#define AHCI_TIMEOUT 500 +#define AHCI_FIS_SIZE 256 +#define AHCI_CMDTAB_SIZE 256 +#define AHCI_CMDENTRY_SIZE 32 + +#endif /* !_AHCIVAR_H_ */ |