ide: add ide_tune_dma() helper

[linux.git] / include / linux / ide.h

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 34f2676b3c625a20ac5a93e6251e5be006b39dbf..d03fa2d5d75a8cd17b076bce4cda42d012473258 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -613,8 +613,8 @@ typedef struct ide_drive_s {
 
         u8     quirk_list;     /* considered quirky, set for a specific host */
         u8     init_speed;     /* transfer rate set at boot */
-        u8     pio_speed;      /* unused by core, used by some drivers for fallback from DMA */
         u8     current_speed;  /* current transfer rate set */
+       u8      desired_speed;  /* desired transfer rate set */
         u8     dn;             /* now wide spread use */
         u8     wcache;         /* status of write cache */
        u8      acoustic;       /* acoustic management */
@@ -717,11 +717,8 @@ typedef struct hwif_s {
        int     (*quirkproc)(ide_drive_t *);
        /* driver soft-power interface */
        int     (*busproc)(ide_drive_t *, int);
-//     /* host rate limiter */
-//     u8      (*ratemask)(ide_drive_t *);
-//     /* device rate limiter */
-//     u8      (*ratefilter)(ide_drive_t *, u8);
 #endif
+       u8 (*udma_filter)(ide_drive_t *);
 
        void (*ata_input_data)(ide_drive_t *, void *, u32);
        void (*ata_output_data)(ide_drive_t *, void *, u32);
@@ -860,6 +857,8 @@ typedef struct hwgroup_s {
        int (*expiry)(ide_drive_t *);
                /* ide_system_bus_speed */
        int pio_clock;
+       int req_gen;
+       int req_gen_timer;
 
        unsigned char cmd_buf[4];
 } ide_hwgroup_t;
@@ -1255,6 +1254,7 @@ typedef struct ide_pci_device_s {
        unsigned int            extra;
        struct ide_pci_device_s *next;
        u8                      flags;
+       u8                      udma_mask;
 } ide_pci_device_t;
 
 extern int ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
@@ -1276,6 +1276,8 @@ int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
 int __ide_dma_bad_drive(ide_drive_t *);
 int __ide_dma_good_drive(ide_drive_t *);
 int ide_use_dma(ide_drive_t *);
+u8 ide_max_dma_mode(ide_drive_t *);
+int ide_tune_dma(ide_drive_t *);
 void ide_dma_off(ide_drive_t *);
 void ide_dma_verbose(ide_drive_t *);
 int ide_set_dma(ide_drive_t *);
@@ -1302,6 +1304,8 @@ extern int __ide_dma_timeout(ide_drive_t *);
 
 #else
 static inline int ide_use_dma(ide_drive_t *drive) { return 0; }
+static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
+static inline int ide_tune_dma(ide_drive_t *drive) { return 0; }
 static inline void ide_dma_off(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; }
@@ -1346,8 +1350,7 @@ static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
 }
 
 /* ide-lib.c */
-extern u8 ide_dma_speed(ide_drive_t *drive, u8 mode);
-extern u8 ide_rate_filter(u8 mode, u8 speed); 
+u8 ide_rate_filter(ide_drive_t *, u8);
 extern int ide_dma_enable(ide_drive_t *drive);
 extern char *ide_xfer_verbose(u8 xfer_rate);
 extern void ide_toggle_bounce(ide_drive_t *drive, int on);