patch-2.4.21 linux-2.4.21/drivers/ide/ide_modes.h
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- Lines: 221
- Date:
2003-06-13 07:51:33.000000000 -0700
- Orig file:
linux-2.4.20/drivers/ide/ide_modes.h
- Orig date:
2001-11-22 11:46:58.000000000 -0800
diff -urN linux-2.4.20/drivers/ide/ide_modes.h linux-2.4.21/drivers/ide/ide_modes.h
@@ -16,8 +16,6 @@
* breaking the fragile cmd640.c support.
*/
-#ifdef CONFIG_BLK_DEV_IDE_MODES
-
/*
* Standard (generic) timings for PIO modes, from ATA2 specification.
* These timings are for access to the IDE data port register *only*.
@@ -31,206 +29,13 @@
} ide_pio_timings_t;
typedef struct ide_pio_data_s {
- byte pio_mode;
- byte use_iordy;
- byte overridden;
- byte blacklisted;
+ u8 pio_mode;
+ u8 use_iordy;
+ u8 overridden;
+ u8 blacklisted;
unsigned int cycle_time;
} ide_pio_data_t;
-#ifndef _IDE_C
-
-int ide_scan_pio_blacklist (char *model);
-byte ide_get_best_pio_mode (ide_drive_t *drive, byte mode_wanted, byte max_mode, ide_pio_data_t *d);
+u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_pio_data_t *d);
extern const ide_pio_timings_t ide_pio_timings[6];
-
-#else /* _IDE_C */
-
-const ide_pio_timings_t ide_pio_timings[6] = {
- { 70, 165, 600 }, /* PIO Mode 0 */
- { 50, 125, 383 }, /* PIO Mode 1 */
- { 30, 100, 240 }, /* PIO Mode 2 */
- { 30, 80, 180 }, /* PIO Mode 3 with IORDY */
- { 25, 70, 120 }, /* PIO Mode 4 with IORDY */
- { 20, 50, 100 } /* PIO Mode 5 with IORDY (nonstandard) */
-};
-
-/*
- * Black list. Some drives incorrectly report their maximal PIO mode,
- * at least in respect to CMD640. Here we keep info on some known drives.
- */
-static struct ide_pio_info {
- const char *name;
- int pio;
-} ide_pio_blacklist [] = {
-/* { "Conner Peripherals 1275MB - CFS1275A", 4 }, */
- { "Conner Peripherals 540MB - CFS540A", 3 },
-
- { "WDC AC2700", 3 },
- { "WDC AC2540", 3 },
- { "WDC AC2420", 3 },
- { "WDC AC2340", 3 },
- { "WDC AC2250", 0 },
- { "WDC AC2200", 0 },
- { "WDC AC21200", 4 },
- { "WDC AC2120", 0 },
- { "WDC AC2850", 3 },
- { "WDC AC1270", 3 },
- { "WDC AC1170", 1 },
- { "WDC AC1210", 1 },
- { "WDC AC280", 0 },
-/* { "WDC AC21000", 4 }, */
- { "WDC AC31000", 3 },
- { "WDC AC31200", 3 },
-/* { "WDC AC31600", 4 }, */
-
- { "Maxtor 7131 AT", 1 },
- { "Maxtor 7171 AT", 1 },
- { "Maxtor 7213 AT", 1 },
- { "Maxtor 7245 AT", 1 },
- { "Maxtor 7345 AT", 1 },
- { "Maxtor 7546 AT", 3 },
- { "Maxtor 7540 AV", 3 },
-
- { "SAMSUNG SHD-3121A", 1 },
- { "SAMSUNG SHD-3122A", 1 },
- { "SAMSUNG SHD-3172A", 1 },
-
-/* { "ST51080A", 4 },
- * { "ST51270A", 4 },
- * { "ST31220A", 4 },
- * { "ST31640A", 4 },
- * { "ST32140A", 4 },
- * { "ST3780A", 4 },
- */
- { "ST5660A", 3 },
- { "ST3660A", 3 },
- { "ST3630A", 3 },
- { "ST3655A", 3 },
- { "ST3391A", 3 },
- { "ST3390A", 1 },
- { "ST3600A", 1 },
- { "ST3290A", 0 },
- { "ST3144A", 0 },
- { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on */
- /* drive) according to Seagates FIND-ATA program */
-
- { "QUANTUM ELS127A", 0 },
- { "QUANTUM ELS170A", 0 },
- { "QUANTUM LPS240A", 0 },
- { "QUANTUM LPS210A", 3 },
- { "QUANTUM LPS270A", 3 },
- { "QUANTUM LPS365A", 3 },
- { "QUANTUM LPS540A", 3 },
- { "QUANTUM LIGHTNING 540A", 3 },
- { "QUANTUM LIGHTNING 730A", 3 },
-
- { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */
- { "QUANTUM FIREBALL_640", 3 },
- { "QUANTUM FIREBALL_1080", 3 },
- { "QUANTUM FIREBALL_1280", 3 },
- { NULL, 0 }
-};
-
-/*
- * This routine searches the ide_pio_blacklist for an entry
- * matching the start/whole of the supplied model name.
- *
- * Returns -1 if no match found.
- * Otherwise returns the recommended PIO mode from ide_pio_blacklist[].
- */
-int ide_scan_pio_blacklist (char *model)
-{
- struct ide_pio_info *p;
-
- for (p = ide_pio_blacklist; p->name != NULL; p++) {
- if (strncmp(p->name, model, strlen(p->name)) == 0)
- return p->pio;
- }
- return -1;
-}
-
-/*
- * This routine returns the recommended PIO settings for a given drive,
- * based on the drive->id information and the ide_pio_blacklist[].
- * This is used by most chipset support modules when "auto-tuning".
- */
-
-/*
- * Drive PIO mode auto selection
- */
-byte ide_get_best_pio_mode (ide_drive_t *drive, byte mode_wanted, byte max_mode, ide_pio_data_t *d)
-{
- int pio_mode;
- int cycle_time = 0;
- int use_iordy = 0;
- struct hd_driveid* id = drive->id;
- int overridden = 0;
- int blacklisted = 0;
-
- if (mode_wanted != 255) {
- pio_mode = mode_wanted;
- } else if (!drive->id) {
- pio_mode = 0;
- } else if ((pio_mode = ide_scan_pio_blacklist(id->model)) != -1) {
- overridden = 1;
- blacklisted = 1;
- use_iordy = (pio_mode > 2);
- } else {
- pio_mode = id->tPIO;
- if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
- pio_mode = 2;
- overridden = 1;
- }
- if (id->field_valid & 2) { /* drive implements ATA2? */
- if (id->capability & 8) { /* drive supports use_iordy? */
- use_iordy = 1;
- cycle_time = id->eide_pio_iordy;
- if (id->eide_pio_modes & 7) {
- overridden = 0;
- if (id->eide_pio_modes & 4)
- pio_mode = 5;
- else if (id->eide_pio_modes & 2)
- pio_mode = 4;
- else
- pio_mode = 3;
- }
- } else {
- cycle_time = id->eide_pio;
- }
- }
-
-#if 0
- if (drive->id->major_rev_num & 0x0004) printk("ATA-2 ");
-#endif
-
- /*
- * Conservative "downgrade" for all pre-ATA2 drives
- */
- if (pio_mode && pio_mode < 4) {
- pio_mode--;
- overridden = 1;
-#if 0
- use_iordy = (pio_mode > 2);
-#endif
- if (cycle_time && cycle_time < ide_pio_timings[pio_mode].cycle_time)
- cycle_time = 0; /* use standard timing */
- }
- }
- if (pio_mode > max_mode) {
- pio_mode = max_mode;
- cycle_time = 0;
- }
- if (d) {
- d->pio_mode = pio_mode;
- d->cycle_time = cycle_time ? cycle_time : ide_pio_timings[pio_mode].cycle_time;
- d->use_iordy = use_iordy;
- d->overridden = overridden;
- d->blacklisted = blacklisted;
- }
- return pio_mode;
-}
-
-#endif /* _IDE_C */
-#endif /* CONFIG_BLK_DEV_IDE_MODES */
#endif /* _IDE_MODES_H */
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