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-rw-r--r--include/linux/ide.h379
1 files changed, 135 insertions, 244 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9a6a41e7079f..27cb39de2ae2 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -27,25 +27,10 @@
#include <asm/semaphore.h>
#include <asm/mutex.h>
-/******************************************************************************
- * IDE driver configuration options (play with these as desired):
- *
- * REALLY_SLOW_IO can be defined in ide.c and ide-cd.c, if necessary
- */
-#define INITIAL_MULT_COUNT 0 /* off=0; on=2,4,8,16,32, etc.. */
-
-#ifndef SUPPORT_SLOW_DATA_PORTS /* 1 to support slow data ports */
-#define SUPPORT_SLOW_DATA_PORTS 1 /* 0 to reduce kernel size */
-#endif
-#ifndef SUPPORT_VLB_SYNC /* 1 to support weird 32-bit chips */
-#define SUPPORT_VLB_SYNC 1 /* 0 to reduce kernel size */
-#endif
-#ifndef OK_TO_RESET_CONTROLLER /* 1 needed for good error recovery */
-#define OK_TO_RESET_CONTROLLER 1 /* 0 for use with AH2372A/B interface */
-#endif
-
-#ifndef DISABLE_IRQ_NOSYNC
-#define DISABLE_IRQ_NOSYNC 0
+#if defined(CRIS) || defined(FRV)
+# define SUPPORT_VLB_SYNC 0
+#else
+# define SUPPORT_VLB_SYNC 1
#endif
/*
@@ -55,10 +40,6 @@
#define IDE_NO_IRQ (-1)
-/*
- * "No user-serviceable parts" beyond this point :)
- *****************************************************************************/
-
typedef unsigned char byte; /* used everywhere */
/*
@@ -103,8 +84,6 @@ typedef unsigned char byte; /* used everywhere */
#define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET
#define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET
-#define IDE_CONTROL_OFFSET_HOB (7)
-
#define IDE_DATA_REG (HWIF(drive)->io_ports[IDE_DATA_OFFSET])
#define IDE_ERROR_REG (HWIF(drive)->io_ports[IDE_ERROR_OFFSET])
#define IDE_NSECTOR_REG (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET])
@@ -128,7 +107,6 @@ typedef unsigned char byte; /* used everywhere */
#define BAD_W_STAT (BAD_R_STAT | WRERR_STAT)
#define BAD_STAT (BAD_R_STAT | DRQ_STAT)
#define DRIVE_READY (READY_STAT | SEEK_STAT)
-#define DATA_READY (DRQ_STAT)
#define BAD_CRC (ABRT_ERR | ICRC_ERR)
@@ -219,8 +197,11 @@ typedef struct hw_regs_s {
} hw_regs_t;
struct hwif_s * ide_find_port(unsigned long);
+void ide_init_port_data(struct hwif_s *, unsigned int);
+void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
-int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int,
+struct ide_drive_s;
+int ide_register_hw(hw_regs_t *, void (*)(struct ide_drive_s *),
struct hwif_s **);
void ide_setup_ports( hw_regs_t *hw,
@@ -327,47 +308,16 @@ static inline void ide_init_hwif_ports(hw_regs_t *hw,
typedef union {
unsigned all : 8;
struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned set_geometry : 1;
unsigned recalibrate : 1;
unsigned set_multmode : 1;
unsigned set_tune : 1;
unsigned serviced : 1;
unsigned reserved : 3;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned reserved : 3;
- unsigned serviced : 1;
- unsigned set_tune : 1;
- unsigned set_multmode : 1;
- unsigned recalibrate : 1;
- unsigned set_geometry : 1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
} b;
} special_t;
/*
- * ATA DATA Register Special.
- * ATA NSECTOR Count Register().
- * ATAPI Byte Count Register.
- */
-typedef union {
- unsigned all :16;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned low :8; /* LSB */
- unsigned high :8; /* MSB */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned high :8; /* MSB */
- unsigned low :8; /* LSB */
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} ata_nsector_t, ata_data_t, atapi_bcount_t;
-
-/*
* ATA-IDE Select Register, aka Device-Head
*
* head : always zeros here
@@ -398,131 +348,6 @@ typedef union {
} select_t, ata_select_t;
/*
- * The ATA-IDE Status Register.
- * The ATAPI Status Register.
- *
- * check : Error occurred
- * idx : Index Error
- * corr : Correctable error occurred
- * drq : Data is request by the device
- * dsc : Disk Seek Complete : ata
- * : Media access command finished : atapi
- * df : Device Fault : ata
- * : Reserved : atapi
- * drdy : Ready, Command Mode Capable : ata
- * : Ignored for ATAPI commands : atapi
- * bsy : Disk is Busy
- * : The device has access to the command block
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned check :1;
- unsigned idx :1;
- unsigned corr :1;
- unsigned drq :1;
- unsigned dsc :1;
- unsigned df :1;
- unsigned drdy :1;
- unsigned bsy :1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned bsy :1;
- unsigned drdy :1;
- unsigned df :1;
- unsigned dsc :1;
- unsigned drq :1;
- unsigned corr :1;
- unsigned idx :1;
- unsigned check :1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} ata_status_t, atapi_status_t;
-
-/*
- * ATAPI Feature Register
- *
- * dma : Using DMA or PIO
- * reserved321 : Reserved
- * reserved654 : Reserved (Tag Type)
- * reserved7 : Reserved
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned dma :1;
- unsigned reserved321 :3;
- unsigned reserved654 :3;
- unsigned reserved7 :1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned reserved7 :1;
- unsigned reserved654 :3;
- unsigned reserved321 :3;
- unsigned dma :1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} atapi_feature_t;
-
-/*
- * ATAPI Interrupt Reason Register.
- *
- * cod : Information transferred is command (1) or data (0)
- * io : The device requests us to read (1) or write (0)
- * reserved : Reserved
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned cod :1;
- unsigned io :1;
- unsigned reserved :6;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned reserved :6;
- unsigned io :1;
- unsigned cod :1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} atapi_ireason_t;
-
-/*
- * The ATAPI error register.
- *
- * ili : Illegal Length Indication
- * eom : End Of Media Detected
- * abrt : Aborted command - As defined by ATA
- * mcr : Media Change Requested - As defined by ATA
- * sense_key : Sense key of the last failed packet command
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned ili :1;
- unsigned eom :1;
- unsigned abrt :1;
- unsigned mcr :1;
- unsigned sense_key :4;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned sense_key :4;
- unsigned mcr :1;
- unsigned abrt :1;
- unsigned eom :1;
- unsigned ili :1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} atapi_error_t;
-
-/*
* Status returned from various ide_ functions
*/
typedef enum {
@@ -568,7 +393,6 @@ typedef struct ide_drive_s {
u8 state; /* retry state */
u8 waiting_for_dma; /* dma currently in progress */
u8 unmask; /* okay to unmask other irqs */
- u8 bswap; /* byte swap data */
u8 noflush; /* don't attempt flushes */
u8 dsc_overlap; /* DSC overlap */
u8 nice1; /* give potential excess bandwidth */
@@ -701,36 +525,29 @@ typedef struct hwif_s {
void (*pre_reset)(ide_drive_t *);
/* routine to reset controller after a disk reset */
void (*resetproc)(ide_drive_t *);
- /* special interrupt handling for shared pci interrupts */
- void (*intrproc)(ide_drive_t *);
/* special host masking for drive selection */
void (*maskproc)(ide_drive_t *, int);
/* check host's drive quirk list */
- int (*quirkproc)(ide_drive_t *);
+ void (*quirkproc)(ide_drive_t *);
/* driver soft-power interface */
int (*busproc)(ide_drive_t *, int);
#endif
u8 (*mdma_filter)(ide_drive_t *);
u8 (*udma_filter)(ide_drive_t *);
- void (*fixup)(struct hwif_s *);
-
void (*ata_input_data)(ide_drive_t *, void *, u32);
void (*ata_output_data)(ide_drive_t *, void *, u32);
void (*atapi_input_bytes)(ide_drive_t *, void *, u32);
void (*atapi_output_bytes)(ide_drive_t *, void *, u32);
+ void (*dma_host_set)(ide_drive_t *, int);
int (*dma_setup)(ide_drive_t *);
void (*dma_exec_cmd)(ide_drive_t *, u8);
void (*dma_start)(ide_drive_t *);
int (*ide_dma_end)(ide_drive_t *drive);
- int (*ide_dma_on)(ide_drive_t *drive);
- void (*dma_off_quietly)(ide_drive_t *drive);
int (*ide_dma_test_irq)(ide_drive_t *drive);
void (*ide_dma_clear_irq)(ide_drive_t *drive);
- void (*dma_host_on)(ide_drive_t *drive);
- void (*dma_host_off)(ide_drive_t *drive);
void (*dma_lost_irq)(ide_drive_t *drive);
void (*dma_timeout)(ide_drive_t *drive);
@@ -766,7 +583,6 @@ typedef struct hwif_s {
int rqsize; /* max sectors per request */
int irq; /* our irq number */
- unsigned long dma_master; /* reference base addr dmabase */
unsigned long dma_base; /* base addr for dma ports */
unsigned long dma_command; /* dma command register */
unsigned long dma_vendor1; /* dma vendor 1 register */
@@ -806,7 +622,6 @@ typedef struct hwif_s {
/*
* internal ide interrupt handler type
*/
-typedef ide_startstop_t (ide_pre_handler_t)(ide_drive_t *, struct request *);
typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
typedef int (ide_expiry_t)(ide_drive_t *);
@@ -1020,7 +835,8 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
-extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *);
+void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
+ ide_expiry_t *);
ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
@@ -1054,60 +870,126 @@ extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
-/*
- * Issue ATA command and wait for completion.
- * Use for implementing commands in kernel
- *
- * (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors, u8 *buf)
- */
-extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *);
+enum {
+ IDE_TFLAG_LBA48 = (1 << 0),
+ IDE_TFLAG_NO_SELECT_MASK = (1 << 1),
+ IDE_TFLAG_FLAGGED = (1 << 2),
+ IDE_TFLAG_OUT_DATA = (1 << 3),
+ IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4),
+ IDE_TFLAG_OUT_HOB_NSECT = (1 << 5),
+ IDE_TFLAG_OUT_HOB_LBAL = (1 << 6),
+ IDE_TFLAG_OUT_HOB_LBAM = (1 << 7),
+ IDE_TFLAG_OUT_HOB_LBAH = (1 << 8),
+ IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE |
+ IDE_TFLAG_OUT_HOB_NSECT |
+ IDE_TFLAG_OUT_HOB_LBAL |
+ IDE_TFLAG_OUT_HOB_LBAM |
+ IDE_TFLAG_OUT_HOB_LBAH,
+ IDE_TFLAG_OUT_FEATURE = (1 << 9),
+ IDE_TFLAG_OUT_NSECT = (1 << 10),
+ IDE_TFLAG_OUT_LBAL = (1 << 11),
+ IDE_TFLAG_OUT_LBAM = (1 << 12),
+ IDE_TFLAG_OUT_LBAH = (1 << 13),
+ IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE |
+ IDE_TFLAG_OUT_NSECT |
+ IDE_TFLAG_OUT_LBAL |
+ IDE_TFLAG_OUT_LBAM |
+ IDE_TFLAG_OUT_LBAH,
+ IDE_TFLAG_OUT_DEVICE = (1 << 14),
+ IDE_TFLAG_WRITE = (1 << 15),
+ IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16),
+ IDE_TFLAG_IN_DATA = (1 << 17),
+ IDE_TFLAG_CUSTOM_HANDLER = (1 << 18),
+ IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19),
+ IDE_TFLAG_IN_HOB_FEATURE = (1 << 20),
+ IDE_TFLAG_IN_HOB_NSECT = (1 << 21),
+ IDE_TFLAG_IN_HOB_LBAL = (1 << 22),
+ IDE_TFLAG_IN_HOB_LBAM = (1 << 23),
+ IDE_TFLAG_IN_HOB_LBAH = (1 << 24),
+ IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL |
+ IDE_TFLAG_IN_HOB_LBAM |
+ IDE_TFLAG_IN_HOB_LBAH,
+ IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE |
+ IDE_TFLAG_IN_HOB_NSECT |
+ IDE_TFLAG_IN_HOB_LBA,
+ IDE_TFLAG_IN_NSECT = (1 << 25),
+ IDE_TFLAG_IN_LBAL = (1 << 26),
+ IDE_TFLAG_IN_LBAM = (1 << 27),
+ IDE_TFLAG_IN_LBAH = (1 << 28),
+ IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL |
+ IDE_TFLAG_IN_LBAM |
+ IDE_TFLAG_IN_LBAH,
+ IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT |
+ IDE_TFLAG_IN_LBA,
+ IDE_TFLAG_IN_DEVICE = (1 << 29),
+ IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB |
+ IDE_TFLAG_IN_HOB,
+ IDE_TFLAG_TF = IDE_TFLAG_OUT_TF |
+ IDE_TFLAG_IN_TF,
+ IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE |
+ IDE_TFLAG_IN_DEVICE,
+ /* force 16-bit I/O operations */
+ IDE_TFLAG_IO_16BIT = (1 << 30),
+};
+
+struct ide_taskfile {
+ u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */
+
+ u8 hob_feature; /* 1-5: additional data to support LBA48 */
+ u8 hob_nsect;
+ u8 hob_lbal;
+ u8 hob_lbam;
+ u8 hob_lbah;
+
+ u8 data; /* 6: low data byte (for TASKFILE IOCTL) */
+
+ union { /*  7: */
+ u8 error; /* read: error */
+ u8 feature; /* write: feature */
+ };
+
+ u8 nsect; /* 8: number of sectors */
+ u8 lbal; /* 9: LBA low */
+ u8 lbam; /* 10: LBA mid */
+ u8 lbah; /* 11: LBA high */
+
+ u8 device; /* 12: device select */
+
+ union { /* 13: */
+ u8 status; /*  read: status  */
+ u8 command; /* write: command */
+ };
+};
typedef struct ide_task_s {
-/*
- * struct hd_drive_task_hdr tf;
- * task_struct_t tf;
- * struct hd_drive_hob_hdr hobf;
- * hob_struct_t hobf;
- */
- task_ioreg_t tfRegister[8];
- task_ioreg_t hobRegister[8];
- ide_reg_valid_t tf_out_flags;
- ide_reg_valid_t tf_in_flags;
+ union {
+ struct ide_taskfile tf;
+ u8 tf_array[14];
+ };
+ u32 tf_flags;
int data_phase;
- int command_type;
- ide_pre_handler_t *prehandler;
- ide_handler_t *handler;
struct request *rq; /* copy of request */
void *special; /* valid_t generally */
} ide_task_t;
-extern u32 ide_read_24(ide_drive_t *);
+void ide_tf_load(ide_drive_t *, ide_task_t *);
+void ide_tf_read(ide_drive_t *, ide_task_t *);
extern void SELECT_DRIVE(ide_drive_t *);
-extern void SELECT_INTERRUPT(ide_drive_t *);
extern void SELECT_MASK(ide_drive_t *, int);
-extern void QUIRK_LIST(ide_drive_t *);
extern int drive_is_ready(ide_drive_t *);
-/*
- * taskfile io for disks for now...and builds request from ide_ioctl
- */
-extern ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
+void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
-/*
- * Special Flagged Register Validation Caller
- */
-extern ide_startstop_t flagged_taskfile(ide_drive_t *, ide_task_t *);
+ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
+
+void task_end_request(ide_drive_t *, struct request *, u8);
-extern ide_startstop_t set_multmode_intr(ide_drive_t *);
-extern ide_startstop_t set_geometry_intr(ide_drive_t *);
-extern ide_startstop_t recal_intr(ide_drive_t *);
-extern ide_startstop_t task_no_data_intr(ide_drive_t *);
-extern ide_startstop_t task_in_intr(ide_drive_t *);
-extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
+u8 wait_drive_not_busy(ide_drive_t *);
-extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *);
+int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16);
+int ide_no_data_taskfile(ide_drive_t *, ide_task_t *);
int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
@@ -1133,10 +1015,9 @@ extern void do_ide_request(struct request_queue *);
void ide_init_disk(struct gendisk *, ide_drive_t *);
-extern int ideprobe_init(void);
-
#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-extern void ide_scan_pcibus(int scan_direction) __init;
+extern int ide_scan_direction;
+int __init ide_scan_pcibus(void);
extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
#else
@@ -1212,6 +1093,9 @@ enum {
IDE_HFLAG_IO_32BIT = (1 << 24),
/* unmask IRQs */
IDE_HFLAG_UNMASK_IRQS = (1 << 25),
+ IDE_HFLAG_ABUSE_SET_DMA_MODE = (1 << 26),
+ /* host is CY82C693 */
+ IDE_HFLAG_CY82C693 = (1 << 27),
};
#ifdef CONFIG_BLK_DEV_OFFBOARD
@@ -1226,10 +1110,9 @@ struct ide_port_info {
void (*init_iops)(ide_hwif_t *);
void (*init_hwif)(ide_hwif_t *);
void (*init_dma)(ide_hwif_t *, unsigned long);
- void (*fixup)(ide_hwif_t *);
ide_pci_enablebit_t enablebits[2];
hwif_chipset_t chipset;
- unsigned int extra;
+ u8 extra;
u32 host_flags;
u8 pio_mask;
u8 swdma_mask;
@@ -1264,7 +1147,9 @@ static inline u8 ide_max_dma_mode(ide_drive_t *drive)
return ide_find_dma_mode(drive, XFER_UDMA_6);
}
+void ide_dma_off_quietly(ide_drive_t *);
void ide_dma_off(ide_drive_t *);
+void ide_dma_on(ide_drive_t *);
int ide_set_dma(ide_drive_t *);
ide_startstop_t ide_dma_intr(ide_drive_t *);
@@ -1275,10 +1160,7 @@ extern void ide_destroy_dmatable(ide_drive_t *);
extern int ide_release_dma(ide_hwif_t *);
extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int);
-void ide_dma_host_off(ide_drive_t *);
-void ide_dma_off_quietly(ide_drive_t *);
-void ide_dma_host_on(ide_drive_t *);
-extern int __ide_dma_on(ide_drive_t *);
+void ide_dma_host_set(ide_drive_t *, int);
extern int ide_dma_setup(ide_drive_t *);
extern void ide_dma_start(ide_drive_t *);
extern int __ide_dma_end(ide_drive_t *);
@@ -1290,7 +1172,9 @@ extern void ide_dma_timeout(ide_drive_t *);
static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; }
static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; }
static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
+static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; }
static inline void ide_dma_off(ide_drive_t *drive) { ; }
+static inline void ide_dma_on(ide_drive_t *drive) { ; }
static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
#endif /* CONFIG_BLK_DEV_IDEDMA */
@@ -1320,8 +1204,9 @@ extern void ide_unregister (unsigned int index);
void ide_register_region(struct gendisk *);
void ide_unregister_region(struct gendisk *);
-void ide_undecoded_slave(ide_hwif_t *);
+void ide_undecoded_slave(ide_drive_t *);
+int ide_device_add_all(u8 *idx);
int ide_device_add(u8 idx[4]);
static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
@@ -1356,6 +1241,7 @@ static inline int ide_dev_is_sata(struct hd_driveid *id)
return 0;
}
+u64 ide_get_lba_addr(struct ide_taskfile *, int);
u8 ide_dump_status(ide_drive_t *, const char *, u8);
typedef struct ide_pio_timings_s {
@@ -1418,4 +1304,9 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
return &hwif->drives[(drive->dn ^ 1) & 1];
}
+static inline void ide_set_irq(ide_drive_t *drive, int on)
+{
+ drive->hwif->OUTB(drive->ctl | (on ? 0 : 2), IDE_CONTROL_REG);
+}
+
#endif /* _IDE_H */
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-06 19:52:53 +0000