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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
[libata] license change, other bits - changes license of all code from OSL+GPL to plain ole GPL - except for NVIDIA, who hasn't yet responded about sata_nv - copyright holders were already contacted privately - adds info in each driver about where hardware/protocol docs may be obtained - where I have made major contributions, updated copyright dates
2005-08-29 00:18:39 +00:00
* Copyright 2003-2005 Red Hat, Inc. All rights reserved.
* Copyright 2003-2005 Jeff Garzik
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* libata documentation is available via 'make {ps|pdf}docs',
* as Documentation/DocBook/libata.*
*
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
*/
#ifndef __LINUX_LIBATA_H__
#define __LINUX_LIBATA_H__
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
/*
* compile-time options
*/
#undef ATA_DEBUG /* debugging output */
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#undef ATA_IRQ_TRAP /* define to ack screaming irqs */
#undef ATA_NDEBUG /* define to disable quick runtime checks */
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
* low-level drivers */
#undef ATAPI_ENABLE_DMADIR /* enables ATAPI DMADIR bridge support */
/* note: prints function name for you */
#ifdef ATA_DEBUG
#define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
#ifdef ATA_VERBOSE_DEBUG
#define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
#else
#define VPRINTK(fmt, args...)
#endif /* ATA_VERBOSE_DEBUG */
#else
#define DPRINTK(fmt, args...)
#define VPRINTK(fmt, args...)
#endif /* ATA_DEBUG */
#ifdef ATA_NDEBUG
#define assert(expr)
#else
#define assert(expr) \
if(unlikely(!(expr))) { \
printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
#expr,__FILE__,__FUNCTION__,__LINE__); \
}
#endif
/* defines only for the constants which don't work well as enums */
#define ATA_TAG_POISON 0xfafbfcfdU
/* move to PCI layer? */
static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
{
return &pdev->dev;
}
enum {
/* various global constants */
LIBATA_MAX_PRD = ATA_MAX_PRD / 2,
ATA_MAX_PORTS = 8,
ATA_DEF_QUEUE = 1,
ATA_MAX_QUEUE = 1,
ATA_MAX_SECTORS = 200, /* FIXME */
ATA_MAX_BUS = 2,
ATA_DEF_BUSY_WAIT = 10000,
ATA_SHORT_PAUSE = (HZ >> 6) + 1,
ATA_SHT_EMULATED = 1,
ATA_SHT_CMD_PER_LUN = 1,
ATA_SHT_THIS_ID = -1,
libata: turn on block layer clustering
2005-10-22 04:19:33 +00:00
ATA_SHT_USE_CLUSTERING = 1,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* struct ata_device stuff */
ATA_DFLAG_LBA48 = (1 << 0), /* device supports LBA48 */
ATA_DFLAG_PIO = (1 << 1), /* device currently in PIO mode */
ATA_DFLAG_LOCK_SECTORS = (1 << 2), /* don't adjust max_sectors */
[libata] C/H/S support, for older devices
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ATA_DFLAG_LBA = (1 << 3), /* device supports LBA */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */
ATA_DEV_ATAPI = 3, /* ATAPI device */
ATA_DEV_ATAPI_UNSUP = 4, /* ATAPI device (unsupported) */
ATA_DEV_NONE = 5, /* no device */
/* struct ata_port flags */
ATA_FLAG_SLAVE_POSS = (1 << 1), /* host supports slave dev */
/* (doesn't imply presence) */
ATA_FLAG_PORT_DISABLED = (1 << 2), /* port is disabled, ignore it */
ATA_FLAG_SATA = (1 << 3),
ATA_FLAG_NO_LEGACY = (1 << 4), /* no legacy mode check */
ATA_FLAG_SRST = (1 << 5), /* use ATA SRST, not E.D.D. */
ATA_FLAG_MMIO = (1 << 6), /* use MMIO, not PIO */
ATA_FLAG_SATA_RESET = (1 << 7), /* use COMRESET */
ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
[PATCH] fix atapi_packet_task vs. intr race (take 2) Interrupts from devices sharing the same IRQ could cause ata_host_intr to finish commands being processed by atapi_packet_task if the commands are using ATA_PROT_ATAPI_NODATA or ATA_PROT_ATAPI_DMA protocol. This is because libata interrupt handler is unaware that interrupts are not expected during that period. This patch adds ATA_FLAG_NOINTR flag to tell the interrupt handler that we're not expecting interrupts. Note that once proper HSM is implemented for interrupt-driven PIO, this should be merged into it and this flag will be removed. ahci.c is a different kind of beast, so it's left alone. * The following drivers use ata_qc_issue_prot and ata_interrupt, so changes in libata core will do. ata_piix sata_sil sata_svw sata_via sata_sis sata_uli * The following drivers use ata_qc_issue_prot and custom intr handler. They need this change to work correctly. sata_nv sata_vsc * The following drivers use custom issue function and intr handler. Currently all custom issue functions don't support ATAPI, so this change is irrelevant, updated for consistency and to avoid later mistakes. sata_promise sata_qstor sata_sx4 Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-22 05:59:24 +00:00
ATA_FLAG_NOINTR = (1 << 9), /* FIXME: Remove this once
* proper HSM is in place. */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */
ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */
ATA_QCFLAG_SINGLE = (1 << 4), /* no s/g, just a single buffer */
ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
/* various lengths of time */
ATA_TMOUT_EDD = 5 * HZ, /* hueristic */
ATA_TMOUT_PIO = 30 * HZ,
ATA_TMOUT_BOOT = 30 * HZ, /* hueristic */
ATA_TMOUT_BOOT_QUICK = 7 * HZ, /* hueristic */
ATA_TMOUT_CDB = 30 * HZ,
ATA_TMOUT_CDB_QUICK = 5 * HZ,
/* ATA bus states */
BUS_UNKNOWN = 0,
BUS_DMA = 1,
BUS_IDLE = 2,
BUS_NOINTR = 3,
BUS_NODATA = 4,
BUS_TIMER = 5,
BUS_PIO = 6,
BUS_EDD = 7,
BUS_IDENTIFY = 8,
BUS_PACKET = 9,
/* SATA port states */
PORT_UNKNOWN = 0,
PORT_ENABLED = 1,
PORT_DISABLED = 2,
/* encoding various smaller bitmaps into a single
* unsigned long bitmap
*/
ATA_SHIFT_UDMA = 0,
ATA_SHIFT_MWDMA = 8,
ATA_SHIFT_PIO = 11,
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
/* size of buffer to pad xfers ending on unaligned boundaries */
ATA_DMA_PAD_SZ = 4,
ATA_DMA_PAD_BUF_SZ = ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
libata: bitmask based pci init functions for one or two ports This redoes the n_ports logic I proposed before as a bitmask. ata_pci_init_native_mode is now used with a mask allowing for mixed mode stuff later on. ata_pci_init_legacy_port is called with port number and does one port now not two. Instead it is called twice by the ata init logic which cleans both of them up. There are stil limits in the original code left over - IRQ/port mapping for legacy mode should be arch specific values - You can have one legacy mode IDE adapter per PCI root bridge on some systems - Doesn't handle mixed mode devices yet (but is now a lot closer to it)
2005-10-04 12:09:19 +00:00
/* Masks for port functions */
ATA_PORT_PRIMARY = (1 << 0),
ATA_PORT_SECONDARY = (1 << 1),
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
[PATCH] libata: rename host states Changes: s/PIO_ST_/HSM_ST_/ and s/pio_task_state/hsm_task_state/. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-27 09:36:35 +00:00
enum hsm_task_states {
HSM_ST_UNKNOWN,
HSM_ST_IDLE,
HSM_ST_POLL,
HSM_ST_TMOUT,
HSM_ST,
HSM_ST_LAST,
HSM_ST_LAST_POLL,
HSM_ST_ERR,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
[libata] change ata_qc_complete() to take error mask as second arg The second argument to ata_qc_complete() was being used for two purposes: communicate the ATA Status register to the completion function, and indicate an error. On legacy PCI IDE hardware, the latter is often implicit in the former. On more modern hardware, the driver often completely emulated a Status register value, passing ATA_ERR as an indication that something went wrong. Now that previous code changes have eliminated the need to use drv_stat arg to communicate the ATA Status register value, we can convert it to a mask of possible error classes. This will lead to more flexible error handling in the future.
2005-10-30 09:44:42 +00:00
enum ata_completion_errors {
AC_ERR_OTHER = (1 << 0),
AC_ERR_DEV = (1 << 1),
AC_ERR_ATA_BUS = (1 << 2),
AC_ERR_HOST_BUS = (1 << 3),
};
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* forward declarations */
struct scsi_device;
struct ata_port_operations;
struct ata_port;
struct ata_queued_cmd;
/* typedefs */
[libata] change ata_qc_complete() to take error mask as second arg The second argument to ata_qc_complete() was being used for two purposes: communicate the ATA Status register to the completion function, and indicate an error. On legacy PCI IDE hardware, the latter is often implicit in the former. On more modern hardware, the driver often completely emulated a Status register value, passing ATA_ERR as an indication that something went wrong. Now that previous code changes have eliminated the need to use drv_stat arg to communicate the ATA Status register value, we can convert it to a mask of possible error classes. This will lead to more flexible error handling in the future.
2005-10-30 09:44:42 +00:00
typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, unsigned int err_mask);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
struct ata_ioports {
unsigned long cmd_addr;
unsigned long data_addr;
unsigned long error_addr;
unsigned long feature_addr;
unsigned long nsect_addr;
unsigned long lbal_addr;
unsigned long lbam_addr;
unsigned long lbah_addr;
unsigned long device_addr;
unsigned long status_addr;
unsigned long command_addr;
unsigned long altstatus_addr;
unsigned long ctl_addr;
unsigned long bmdma_addr;
unsigned long scr_addr;
};
struct ata_probe_ent {
struct list_head node;
struct device *dev;
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
const struct ata_port_operations *port_ops;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
Scsi_Host_Template *sht;
struct ata_ioports port[ATA_MAX_PORTS];
unsigned int n_ports;
unsigned int hard_port_no;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int legacy_mode;
unsigned long irq;
unsigned int irq_flags;
unsigned long host_flags;
void __iomem *mmio_base;
void *private_data;
};
struct ata_host_set {
spinlock_t lock;
struct device *dev;
unsigned long irq;
void __iomem *mmio_base;
unsigned int n_ports;
void *private_data;
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
const struct ata_port_operations *ops;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
struct ata_port * ports[0];
};
struct ata_queued_cmd {
struct ata_port *ap;
struct ata_device *dev;
struct scsi_cmnd *scsicmd;
void (*scsidone)(struct scsi_cmnd *);
struct ata_taskfile tf;
u8 cdb[ATAPI_CDB_LEN];
unsigned long flags; /* ATA_QCFLAG_xxx */
unsigned int tag;
unsigned int n_elem;
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
unsigned int orig_n_elem;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
int dma_dir;
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
unsigned int pad_len;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned int nsect;
unsigned int cursect;
unsigned int nbytes;
unsigned int curbytes;
unsigned int cursg;
unsigned int cursg_ofs;
struct scatterlist sgent;
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
struct scatterlist pad_sgent;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
void *buf_virt;
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
/* DO NOT iterate over __sg manually, use ata_for_each_sg() */
struct scatterlist *__sg;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
ata_qc_cb_t complete_fn;
struct completion *waiting;
void *private_data;
};
struct ata_host_stats {
unsigned long unhandled_irq;
unsigned long idle_irq;
unsigned long rw_reqbuf;
};
struct ata_device {
u64 n_sectors; /* size of device, if ATA */
unsigned long flags; /* ATA_DFLAG_xxx */
unsigned int class; /* ATA_DEV_xxx */
unsigned int devno; /* 0 or 1 */
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u8 pio_mode;
u8 dma_mode;
u8 xfer_mode;
unsigned int xfer_shift; /* ATA_SHIFT_xxx */
[PATCH] libata CHS: calculate read/write commands and protocol on the fly (revise #6) - merge ata_prot_to_cmd() and ata_dev_set_protocol() as ata_rwcmd_protocol() - pave road for read/write multiple support - remove usage of pre-cached command and protocol values and call ata_rwcmd_protocol() instead Signed-off-by: Albert Lee <albertcc@tw.ibm.com> ============== Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-12 07:06:27 +00:00
unsigned int multi_count; /* sectors count for
READ/WRITE MULTIPLE */
[libata] C/H/S support, for older devices
2005-05-12 19:29:42 +00:00
/* for CHS addressing */
u16 cylinders; /* Number of cylinders */
u16 heads; /* Number of heads */
u16 sectors; /* Number of sectors per track */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
struct ata_port {
struct Scsi_Host *host; /* our co-allocated scsi host */
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
const struct ata_port_operations *ops;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned long flags; /* ATA_FLAG_xxx */
unsigned int id; /* unique id req'd by scsi midlyr */
unsigned int port_no; /* unique port #; from zero */
unsigned int hard_port_no; /* hardware port #; from zero */
struct ata_prd *prd; /* our SG list */
dma_addr_t prd_dma; /* and its DMA mapping */
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
void *pad; /* array of DMA pad buffers */
dma_addr_t pad_dma;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */
u8 ctl; /* cache of ATA control register */
u8 last_ctl; /* Cache last written value */
unsigned int bus_state;
unsigned int port_state;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
unsigned int cdb_len;
struct ata_device device[ATA_MAX_DEVICES];
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
unsigned long qactive;
unsigned int active_tag;
struct ata_host_stats stats;
struct ata_host_set *host_set;
struct work_struct packet_task;
struct work_struct pio_task;
[PATCH] libata: rename host states Changes: s/PIO_ST_/HSM_ST_/ and s/pio_task_state/hsm_task_state/. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-27 09:36:35 +00:00
unsigned int hsm_task_state;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned long pio_task_timeout;
void *private_data;
};
struct ata_port_operations {
void (*port_disable) (struct ata_port *);
void (*dev_config) (struct ata_port *, struct ata_device *);
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
void (*exec_command)(struct ata_port *ap, const struct ata_taskfile *tf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
u8 (*check_status)(struct ata_port *ap);
u8 (*check_altstatus)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
void (*phy_reset) (struct ata_port *ap);
void (*post_set_mode) (struct ata_port *ap);
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
void (*bmdma_setup) (struct ata_queued_cmd *qc);
void (*bmdma_start) (struct ata_queued_cmd *qc);
void (*qc_prep) (struct ata_queued_cmd *qc);
int (*qc_issue) (struct ata_queued_cmd *qc);
void (*eng_timeout) (struct ata_port *ap);
irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
void (*irq_clear) (struct ata_port *);
u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
u32 val);
int (*port_start) (struct ata_port *ap);
void (*port_stop) (struct ata_port *ap);
void (*host_stop) (struct ata_host_set *host_set);
[PATCH] libata: regularize dma_start/stop arguments Needed for a few PATA drivers. Also fix up a wrong comment. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-26 15:03:19 +00:00
void (*bmdma_stop) (struct ata_queued_cmd *qc);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
u8 (*bmdma_status) (struct ata_port *ap);
};
struct ata_port_info {
Scsi_Host_Template *sht;
unsigned long host_flags;
unsigned long pio_mask;
unsigned long mwdma_mask;
unsigned long udma_mask;
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
const struct ata_port_operations *port_ops;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
Add ide-timing functionality to libata. This is needed for full AMD and VIA drivers and possibly more. Functions to turn actual clocking and cycle timings into register values. Also to merge shared timings to compute an optimal timing set. Built from the drivers/ide version by Vojtech Pavlik Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-21 23:01:32 +00:00
struct ata_timing {
unsigned short mode; /* ATA mode */
unsigned short setup; /* t1 */
unsigned short act8b; /* t2 for 8-bit I/O */
unsigned short rec8b; /* t2i for 8-bit I/O */
unsigned short cyc8b; /* t0 for 8-bit I/O */
unsigned short active; /* t2 or tD */
unsigned short recover; /* t2i or tK */
unsigned short cycle; /* t0 */
unsigned short udma; /* t2CYCTYP/2 */
};
#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern void ata_bus_reset(struct ata_port *ap);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
unsigned int n_ports);
extern void ata_pci_remove_one (struct pci_dev *pdev);
#endif /* CONFIG_PCI */
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern int ata_device_add(const struct ata_probe_ent *ent);
[PATCH] PATCH: remove function for non-PCI as requested Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-15 14:44:00 +00:00
extern void ata_host_set_remove(struct ata_host_set *host_set);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern int ata_scsi_detect(Scsi_Host_Template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
extern int ata_scsi_error(struct Scsi_Host *host);
extern int ata_scsi_release(struct Scsi_Host *host);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
libata: add ata_ratelimit(), use it in AHCI driver irq handler
2005-10-05 06:58:32 +00:00
extern int ata_ratelimit(void);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* Default driver ops implementations
*/
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern void ata_tf_to_fis(const struct ata_taskfile *tf, u8 *fis, u8 pmp);
extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern void ata_noop_dev_select (struct ata_port *ap, unsigned int device);
extern void ata_std_dev_select (struct ata_port *ap, unsigned int device);
extern u8 ata_check_status(struct ata_port *ap);
extern u8 ata_altstatus(struct ata_port *ap);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern int ata_port_start (struct ata_port *ap);
extern void ata_port_stop (struct ata_port *ap);
libata: Fix use-after-iounmap Jens Axboe pointed out that the iounmap() call in libata was occurring too early, and some drivers (ahci, probably others) were using ioremap'd memory after it had been unmapped. The patch should address that problem by way of improving the libata driver API: * move ->host_stop() call after all ->port_stop() calls have occurred. * create default helper function ata_host_stop(), and move iounmap() call there. * add ->host_stop_prewalk() hook, use it in sata_qstor.c (hi Mark). sata_qstor appears to require the host-stop-before-port-stop ordering that existed prior to applying the attached patch.
2005-05-27 01:54:27 +00:00
extern void ata_host_stop (struct ata_host_set *host_set);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
extern void ata_dev_id_string(const u16 *id, unsigned char *s,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned int ofs, unsigned int len);
[PATCH] libata basic detection and errata for PATA->SATA bridges This patch works around an issue with WD drives (and possibly others) over SiL PATA->SATA Bridges on SATA controllers locking up with transfers > 200 sectors. Signed-off-by: Brad Campbell <brad@wasp.net.au>
2005-05-12 19:07:47 +00:00
extern void ata_dev_config(struct ata_port *ap, unsigned int i);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
extern void ata_bmdma_start (struct ata_queued_cmd *qc);
[PATCH] libata: regularize dma_start/stop arguments Needed for a few PATA drivers. Also fix up a wrong comment. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-26 15:03:19 +00:00
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
[libata] change ata_qc_complete() to take error mask as second arg The second argument to ata_qc_complete() was being used for two purposes: communicate the ATA Status register to the completion function, and indicate an error. On legacy PCI IDE hardware, the latter is often implicit in the former. On more modern hardware, the driver often completely emulated a Status register value, passing ATA_ERR as an indication that something went wrong. Now that previous code changes have eliminated the need to use drv_stat arg to communicate the ATA Status register value, we can convert it to a mask of possible error classes. This will lead to more flexible error handling in the future.
2005-10-30 09:44:42 +00:00
extern void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern void ata_eng_timeout(struct ata_port *ap);
extern void ata_scsi_simulate(u16 *id, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
extern int ata_std_bios_param(struct scsi_device *sdev,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
Add ide-timing functionality to libata. This is needed for full AMD and VIA drivers and possibly more. Functions to turn actual clocking and cycle timings into register values. Also to merge shared timings to compute an optimal timing set. Built from the drivers/ide version by Vojtech Pavlik Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-21 23:01:32 +00:00
/*
* Timing helpers
*/
extern int ata_timing_compute(struct ata_device *, unsigned short,
struct ata_timing *, int, int);
extern void ata_timing_merge(const struct ata_timing *,
const struct ata_timing *, struct ata_timing *,
unsigned int);
enum {
ATA_TIMING_SETUP = (1 << 0),
ATA_TIMING_ACT8B = (1 << 1),
ATA_TIMING_REC8B = (1 << 2),
ATA_TIMING_CYC8B = (1 << 3),
ATA_TIMING_8BIT = ATA_TIMING_ACT8B | ATA_TIMING_REC8B |
ATA_TIMING_CYC8B,
ATA_TIMING_ACTIVE = (1 << 4),
ATA_TIMING_RECOVER = (1 << 5),
ATA_TIMING_CYCLE = (1 << 6),
ATA_TIMING_UDMA = (1 << 7),
ATA_TIMING_ALL = ATA_TIMING_SETUP | ATA_TIMING_ACT8B |
ATA_TIMING_REC8B | ATA_TIMING_CYC8B |
ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER |
ATA_TIMING_CYCLE | ATA_TIMING_UDMA,
};
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef CONFIG_PCI
struct pci_bits {
unsigned int reg; /* PCI config register to read */
unsigned int width; /* 1 (8 bit), 2 (16 bit), 4 (32 bit) */
unsigned long mask;
unsigned long val;
};
[libata] update several drivers to use pci_iomap()/pci_iounmap()
2005-08-30 09:42:52 +00:00
extern void ata_pci_host_stop (struct ata_host_set *host_set);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
extern struct ata_probe_ent *
libata: bitmask based pci init functions for one or two ports This redoes the n_ports logic I proposed before as a bitmask. ata_pci_init_native_mode is now used with a mask allowing for mixed mode stuff later on. ata_pci_init_legacy_port is called with port number and does one port now not two. Instead it is called twice by the ata init logic which cleans both of them up. There are stil limits in the original code left over - IRQ/port mapping for legacy mode should be arch specific values - You can have one legacy mode IDE adapter per PCI root bridge on some systems - Doesn't handle mixed mode devices yet (but is now a lot closer to it)
2005-10-04 12:09:19 +00:00
ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#endif /* CONFIG_PCI */
libata: add ata_sg_is_last() helper, use it in several drivers
2005-10-19 02:14:54 +00:00
static inline int
ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc)
{
if (sg == &qc->pad_sgent)
return 1;
if (qc->pad_len)
return 0;
if (((sg - qc->__sg) + 1) == qc->n_elem)
return 1;
return 0;
}
libata: fix ATAPI DMA alignment issues ATAPI needs to be padded to next 4 byte boundary, if misaligned. Original work by me, many fixes from Tejun Heo.
2005-10-05 11:13:30 +00:00
static inline struct scatterlist *
ata_qc_next_sg(struct scatterlist *sg, struct ata_queued_cmd *qc)
{
if (sg == &qc->pad_sgent)
return NULL;
if (++sg - qc->__sg < qc->n_elem)
return sg;
return qc->pad_len ? &qc->pad_sgent : NULL;
}
#define ata_for_each_sg(sg, qc) \
for (sg = qc->__sg; sg; sg = ata_qc_next_sg(sg, qc))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline unsigned int ata_tag_valid(unsigned int tag)
{
return (tag < ATA_MAX_QUEUE) ? 1 : 0;
}
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
static inline unsigned int ata_dev_present(const struct ata_device *dev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
return ((dev->class == ATA_DEV_ATA) ||
(dev->class == ATA_DEV_ATAPI));
}
static inline u8 ata_chk_status(struct ata_port *ap)
{
return ap->ops->check_status(ap);
}
libata: update inline source docs
2005-06-02 22:17:13 +00:00
/**
* ata_pause - Flush writes and pause 400 nanoseconds.
* @ap: Port to wait for.
*
* LOCKING:
* Inherited from caller.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline void ata_pause(struct ata_port *ap)
{
ata_altstatus(ap);
ndelay(400);
}
libata: update inline source docs
2005-06-02 22:17:13 +00:00
/**
* ata_busy_wait - Wait for a port status register
* @ap: Port to wait for.
*
* Waits up to max*10 microseconds for the selected bits in the port's
* status register to be cleared.
* Returns final value of status register.
*
* LOCKING:
* Inherited from caller.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline u8 ata_busy_wait(struct ata_port *ap, unsigned int bits,
unsigned int max)
{
u8 status;
do {
udelay(10);
status = ata_chk_status(ap);
max--;
} while ((status & bits) && (max > 0));
return status;
}
libata: update inline source docs
2005-06-02 22:17:13 +00:00
/**
* ata_wait_idle - Wait for a port to be idle.
* @ap: Port to wait for.
*
* Waits up to 10ms for port's BUSY and DRQ signals to clear.
* Returns final value of status register.
*
* LOCKING:
* Inherited from caller.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline u8 ata_wait_idle(struct ata_port *ap)
{
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
if (status & (ATA_BUSY | ATA_DRQ)) {
unsigned long l = ap->ioaddr.status_addr;
printk(KERN_WARNING
"ATA: abnormal status 0x%X on port 0x%lX\n",
status, l);
}
return status;
}
static inline void ata_qc_set_polling(struct ata_queued_cmd *qc)
{
qc->tf.ctl |= ATA_NIEN;
}
static inline struct ata_queued_cmd *ata_qc_from_tag (struct ata_port *ap,
unsigned int tag)
{
if (likely(ata_tag_valid(tag)))
return &ap->qcmd[tag];
return NULL;
}
static inline void ata_tf_init(struct ata_port *ap, struct ata_taskfile *tf, unsigned int device)
{
memset(tf, 0, sizeof(*tf));
tf->ctl = ap->ctl;
if (device == 0)
tf->device = ATA_DEVICE_OBS;
else
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
}
libata: update inline source docs
2005-06-02 22:17:13 +00:00
/**
* ata_irq_on - Enable interrupts on a port.
* @ap: Port on which interrupts are enabled.
*
* Enable interrupts on a legacy IDE device using MMIO or PIO,
* wait for idle, clear any pending interrupts.
*
* LOCKING:
* Inherited from caller.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline u8 ata_irq_on(struct ata_port *ap)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
u8 tmp;
ap->ctl &= ~ATA_NIEN;
ap->last_ctl = ap->ctl;
if (ap->flags & ATA_FLAG_MMIO)
writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
else
outb(ap->ctl, ioaddr->ctl_addr);
tmp = ata_wait_idle(ap);
ap->ops->irq_clear(ap);
return tmp;
}
libata: update inline source docs
2005-06-02 22:17:13 +00:00
/**
* ata_irq_ack - Acknowledge a device interrupt.
* @ap: Port on which interrupts are enabled.
*
* Wait up to 10 ms for legacy IDE device to become idle (BUSY
* or BUSY+DRQ clear). Obtain dma status and port status from
* device. Clear the interrupt. Return port status.
*
* LOCKING:
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
{
unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
u8 host_stat, post_stat, status;
status = ata_busy_wait(ap, bits, 1000);
if (status & bits)
DPRINTK("abnormal status 0x%X\n", status);
/* get controller status; clear intr, err bits */
if (ap->flags & ATA_FLAG_MMIO) {
void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
host_stat = readb(mmio + ATA_DMA_STATUS);
writeb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
mmio + ATA_DMA_STATUS);
post_stat = readb(mmio + ATA_DMA_STATUS);
} else {
host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
outb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
}
VPRINTK("irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
host_stat, post_stat, status);
return status;
}
static inline u32 scr_read(struct ata_port *ap, unsigned int reg)
{
return ap->ops->scr_read(ap, reg);
}
static inline void scr_write(struct ata_port *ap, unsigned int reg, u32 val)
{
ap->ops->scr_write(ap, reg, val);
}
libata: trim trailing whitespace. Also, fixup a tabs-to-spaces block of code in ata_piix.
2005-07-31 17:13:24 +00:00
static inline void scr_write_flush(struct ata_port *ap, unsigned int reg,
[PATCH] libata: flush COMRESET set and clear Updated patch to fix erroneous flush of COMRESET set and missing flush of COMRESET clear. Created a new routine scr_write_flush() to try to prevent this in the future. Also, this patch is based on libata-2.6 instead of the previous libata-dev-2.6 based patch. Signed-off-by: Brett Russ <russb@emc.com> Index: libata-2.6/drivers/scsi/libata-core.c ===================================================================
2005-03-28 20:10:27 +00:00
u32 val)
{
ap->ops->scr_write(ap, reg, val);
(void) ap->ops->scr_read(ap, reg);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static inline unsigned int sata_dev_present(struct ata_port *ap)
{
return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;
}
libata: const-ification bombing run Enforce access rules where appropriate. If the compiler is smart enough, this may buy us an optimization or two as a side effect.
2005-10-22 18:27:05 +00:00
static inline int ata_try_flush_cache(const struct ata_device *dev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
return ata_id_wcache_enabled(dev->id) ||
ata_id_has_flush(dev->id) ||
ata_id_has_flush_ext(dev->id);
}
[libata] change ata_qc_complete() to take error mask as second arg The second argument to ata_qc_complete() was being used for two purposes: communicate the ATA Status register to the completion function, and indicate an error. On legacy PCI IDE hardware, the latter is often implicit in the former. On more modern hardware, the driver often completely emulated a Status register value, passing ATA_ERR as an indication that something went wrong. Now that previous code changes have eliminated the need to use drv_stat arg to communicate the ATA Status register value, we can convert it to a mask of possible error classes. This will lead to more flexible error handling in the future.
2005-10-30 09:44:42 +00:00
static inline unsigned int ac_err_mask(u8 status)
{
if (status & ATA_BUSY)
return AC_ERR_ATA_BUS;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;
return 0;
}
static inline unsigned int __ac_err_mask(u8 status)
{
unsigned int mask = ac_err_mask(status);
if (mask == 0)
return AC_ERR_OTHER;
return mask;
}
[libata] ATAPI pad allocation fixes/cleanup Use ata_pad_{alloc,free} in two drivers, to factor out common code. Add ata_pad_{alloc,free} to two other drivers, which needed the padding but had not been updated.
2005-11-05 03:08:00 +00:00
static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev)
{
ap->pad_dma = 0;
ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
&ap->pad_dma, GFP_KERNEL);
return (ap->pad == NULL) ? -ENOMEM : 0;
}
static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
{
dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#endif /* __LINUX_LIBATA_H__ */
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