hpt366: MWDMA filter for SATA cards (take 2)

[linux-2.6-omap-h63xx.git] / include / linux / ide.h

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 19ab25804056b7b467197d89f1d6b8a02a757912..0665428356d3aad9fa06241a05b06973456e6123 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -555,7 +555,7 @@ typedef struct ide_drive_s {
        char            name[4];        /* drive name, such as "hda" */
         char            driver_req[10];        /* requests specific driver */
 
-       request_queue_t         *queue; /* request queue */
+       struct request_queue    *queue; /* request queue */
 
        struct request          *rq;    /* current request */
        struct ide_drive_s      *next;  /* circular list of hwgroup drives */
@@ -681,6 +681,10 @@ typedef struct hwif_s {
        u8 straight8;   /* Alan's straight 8 check */
        u8 bus_state;   /* power state of the IDE bus */
 
+       u8 host_flags;
+
+       u8 pio_mask;
+
        u8 atapi_dma;   /* host supports atapi_dma */
        u8 ultra_mask;
        u8 mwdma_mask;
@@ -719,6 +723,7 @@ typedef struct hwif_s {
        /* driver soft-power interface */
        int     (*busproc)(ide_drive_t *, int);
 #endif
+       u8 (*mdma_filter)(ide_drive_t *);
        u8 (*udma_filter)(ide_drive_t *);
 
        void (*ata_input_data)(ide_drive_t *, void *, u32);
@@ -1202,7 +1207,7 @@ extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
 extern int ide_spin_wait_hwgroup(ide_drive_t *);
 extern void ide_timer_expiry(unsigned long);
 extern irqreturn_t ide_intr(int irq, void *dev_id);
-extern void do_ide_request(request_queue_t *);
+extern void do_ide_request(struct request_queue *);
 
 void ide_init_disk(struct gendisk *, ide_drive_t *);
 
@@ -1244,7 +1249,13 @@ typedef struct ide_pci_enablebit_s {
 
 enum {
        /* Uses ISA control ports not PCI ones. */
-       IDEPCI_FLAG_ISA_PORTS           = (1 << 0),
+       IDE_HFLAG_ISA_PORTS             = (1 << 0),
+       /* single port device */
+       IDE_HFLAG_SINGLE                = (1 << 1),
+       /* don't use legacy PIO blacklist */
+       IDE_HFLAG_PIO_NO_BLACKLIST      = (1 << 2),
+       /* don't use conservative PIO "downgrade" */
+       IDE_HFLAG_PIO_NO_DOWNGRADE      = (1 << 3),
 };
 
 typedef struct ide_pci_device_s {
@@ -1256,13 +1267,13 @@ typedef struct ide_pci_device_s {
        void                    (*init_hwif)(ide_hwif_t *);
        void                    (*init_dma)(ide_hwif_t *, unsigned long);
        void                    (*fixup)(ide_hwif_t *);
-       u8                      channels;
        u8                      autodma;
        ide_pci_enablebit_t     enablebits[2];
        u8                      bootable;
        unsigned int            extra;
        struct ide_pci_device_s *next;
-       u8                      flags;
+       u8                      host_flags;
+       u8                      pio_mask;
        u8                      udma_mask;
 } ide_pci_device_t;
 
@@ -1275,13 +1286,14 @@ void ide_init_sg_cmd(ide_drive_t *, struct request *);
 #define BAD_DMA_DRIVE          0
 #define GOOD_DMA_DRIVE         1
 
-#ifdef CONFIG_BLK_DEV_IDEDMA
 struct drive_list_entry {
        const char *id_model;
        const char *id_firmware;
 };
 
 int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
 int __ide_dma_bad_drive(ide_drive_t *);
 int __ide_dma_good_drive(ide_drive_t *);
 u8 ide_max_dma_mode(ide_drive_t *);
@@ -1302,7 +1314,6 @@ 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 *);
-extern int __ide_dma_check(ide_drive_t *);
 extern int ide_dma_setup(ide_drive_t *);
 extern void ide_dma_start(ide_drive_t *);
 extern int __ide_dma_end(ide_drive_t *);
@@ -1363,6 +1374,24 @@ extern void ide_toggle_bounce(ide_drive_t *drive, int on);
 extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
 int ide_use_fast_pio(ide_drive_t *);
 
+static inline int ide_dev_has_iordy(struct hd_driveid *id)
+{
+       return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0;
+}
+
+static inline int ide_dev_is_sata(struct hd_driveid *id)
+{
+       /*
+        * See if word 93 is 0 AND drive is at least ATA-5 compatible
+        * verifying that word 80 by casting it to a signed type --
+        * this trick allows us to filter out the reserved values of
+        * 0x0000 and 0xffff along with the earlier ATA revisions...
+        */
+       if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020)
+               return 1;
+       return 0;
+}
+
 u8 ide_dump_status(ide_drive_t *, const char *, u8);
 
 typedef struct ide_pio_timings_s {
@@ -1372,14 +1401,8 @@ typedef struct ide_pio_timings_s {
                                /* active + recovery (+ setup for some chips) */
 } ide_pio_timings_t;
 
-typedef struct ide_pio_data_s {
-       u8 pio_mode;
-       u8 use_iordy;
-       u8 overridden;
-       unsigned int cycle_time;
-} ide_pio_data_t;
-
-extern u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_pio_data_t *d);
+unsigned int ide_pio_cycle_time(ide_drive_t *, u8);
+u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
 extern const ide_pio_timings_t ide_pio_timings[6];