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Diffstat (limited to 'drivers/ide/legacy/qd65xx.c')
-rw-r--r--drivers/ide/legacy/qd65xx.c482
1 files changed, 0 insertions, 482 deletions
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
deleted file mode 100644
index 2f4f47ad602..00000000000
--- a/drivers/ide/legacy/qd65xx.c
+++ /dev/null
@@ -1,482 +0,0 @@
-/*
- * Copyright (C) 1996-2001 Linus Torvalds & author (see below)
- */
-
-/*
- * Version 0.03 Cleaned auto-tune, added probe
- * Version 0.04 Added second channel tuning
- * Version 0.05 Enhanced tuning ; added qd6500 support
- * Version 0.06 Added dos driver's list
- * Version 0.07 Second channel bug fix
- *
- * QDI QD6500/QD6580 EIDE controller fast support
- *
- * Please set local bus speed using kernel parameter idebus
- * for example, "idebus=33" stands for 33Mhz VLbus
- * To activate controller support, use "ide0=qd65xx"
- * To enable tuning, use "hda=autotune hdb=autotune"
- * To enable 2nd channel tuning (qd6580 only), use "hdc=autotune hdd=autotune"
- */
-
-/*
- * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by
- * Samuel Thibault <samuel.thibault@fnac.net>
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <asm/system.h>
-#include <asm/io.h>
-
-#include "qd65xx.h"
-
-/*
- * I/O ports are 0x30-0x31 (and 0x32-0x33 for qd6580)
- * or 0xb0-0xb1 (and 0xb2-0xb3 for qd6580)
- * -- qd6500 is a single IDE interface
- * -- qd6580 is a dual IDE interface
- *
- * More research on qd6580 being done by willmore@cig.mot.com (David)
- * More Information given by Petr Soucek (petr@ryston.cz)
- * http://www.ryston.cz/petr/vlb
- */
-
-/*
- * base: Timer1
- *
- *
- * base+0x01: Config (R/O)
- *
- * bit 0: ide baseport: 1 = 0x1f0 ; 0 = 0x170 (only useful for qd6500)
- * bit 1: qd65xx baseport: 1 = 0xb0 ; 0 = 0x30
- * bit 2: ID3: bus speed: 1 = <=33MHz ; 0 = >33MHz
- * bit 3: qd6500: 1 = disabled, 0 = enabled
- * qd6580: 1
- * upper nibble:
- * qd6500: 1100
- * qd6580: either 1010 or 0101
- *
- *
- * base+0x02: Timer2 (qd6580 only)
- *
- *
- * base+0x03: Control (qd6580 only)
- *
- * bits 0-3 must always be set 1
- * bit 4 must be set 1, but is set 0 by dos driver while measuring vlb clock
- * bit 0 : 1 = Only primary port enabled : channel 0 for hda, channel 1 for hdb
- * 0 = Primary and Secondary ports enabled : channel 0 for hda & hdb
- * channel 1 for hdc & hdd
- * bit 1 : 1 = only disks on primary port
- * 0 = disks & ATAPI devices on primary port
- * bit 2-4 : always 0
- * bit 5 : status, but of what ?
- * bit 6 : always set 1 by dos driver
- * bit 7 : set 1 for non-ATAPI devices on primary port
- * (maybe read-ahead and post-write buffer ?)
- */
-
-static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */
-
-/*
- * qd_select:
- *
- * This routine is invoked from ide.c to prepare for access to a given drive.
- */
-
-static void qd_select (ide_drive_t *drive)
-{
- u8 index = (( (QD_TIMREG(drive)) & 0x80 ) >> 7) |
- (QD_TIMREG(drive) & 0x02);
-
- if (timings[index] != QD_TIMING(drive))
- outb(timings[index] = QD_TIMING(drive), QD_TIMREG(drive));
-}
-
-/*
- * qd6500_compute_timing
- *
- * computes the timing value where
- * lower nibble represents active time, in count of VLB clocks
- * upper nibble represents recovery time, in count of VLB clocks
- */
-
-static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time)
-{
- u8 active_cycle,recovery_cycle;
-
- if (system_bus_clock()<=33) {
- active_cycle = 9 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 9);
- recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 0, 15);
- } else {
- active_cycle = 8 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 1, 8);
- recovery_cycle = 18 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 3, 18);
- }
-
- return((recovery_cycle<<4) | 0x08 | active_cycle);
-}
-
-/*
- * qd6580_compute_timing
- *
- * idem for qd6580
- */
-
-static u8 qd6580_compute_timing (int active_time, int recovery_time)
-{
- u8 active_cycle = 17 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 17);
- u8 recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 2, 15);
-
- return((recovery_cycle<<4) | active_cycle);
-}
-
-/*
- * qd_find_disk_type
- *
- * tries to find timing from dos driver's table
- */
-
-static int qd_find_disk_type (ide_drive_t *drive,
- int *active_time, int *recovery_time)
-{
- struct qd65xx_timing_s *p;
- char model[40];
-
- if (!*drive->id->model) return 0;
-
- strncpy(model,drive->id->model,40);
- ide_fixstring(model,40,1); /* byte-swap */
-
- for (p = qd65xx_timing ; p->offset != -1 ; p++) {
- if (!strncmp(p->model, model+p->offset, 4)) {
- printk(KERN_DEBUG "%s: listed !\n", drive->name);
- *active_time = p->active;
- *recovery_time = p->recovery;
- return 1;
- }
- }
- return 0;
-}
-
-/*
- * qd_timing_ok:
- *
- * check whether timings don't conflict
- */
-
-static int qd_timing_ok (ide_drive_t drives[])
-{
- return (IDE_IMPLY(drives[0].present && drives[1].present,
- IDE_IMPLY(QD_TIMREG(drives) == QD_TIMREG(drives+1),
- QD_TIMING(drives) == QD_TIMING(drives+1))));
- /* if same timing register, must be same timing */
-}
-
-/*
- * qd_set_timing:
- *
- * records the timing, and enables selectproc as needed
- */
-
-static void qd_set_timing (ide_drive_t *drive, u8 timing)
-{
- ide_hwif_t *hwif = HWIF(drive);
-
- drive->drive_data &= 0xff00;
- drive->drive_data |= timing;
- if (qd_timing_ok(hwif->drives)) {
- qd_select(drive); /* selects once */
- hwif->selectproc = NULL;
- } else
- hwif->selectproc = &qd_select;
-
- printk(KERN_DEBUG "%s: %#x\n", drive->name, timing);
-}
-
-static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio)
-{
- int active_time = 175;
- int recovery_time = 415; /* worst case values from the dos driver */
-
- /*
- * FIXME: use "pio" value
- */
- if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)
- && drive->id->tPIO && (drive->id->field_valid & 0x02)
- && drive->id->eide_pio >= 240) {
-
- printk(KERN_INFO "%s: PIO mode%d\n", drive->name,
- drive->id->tPIO);
- active_time = 110;
- recovery_time = drive->id->eide_pio - 120;
- }
-
- qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time));
-}
-
-static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
-{
- int base = HWIF(drive)->select_data;
- unsigned int cycle_time;
- int active_time = 175;
- int recovery_time = 415; /* worst case values from the dos driver */
-
- if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
- cycle_time = ide_pio_cycle_time(drive, pio);
-
- switch (pio) {
- case 0: break;
- case 3:
- if (cycle_time >= 110) {
- active_time = 86;
- recovery_time = cycle_time - 102;
- } else
- printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
- break;
- case 4:
- if (cycle_time >= 69) {
- active_time = 70;
- recovery_time = cycle_time - 61;
- } else
- printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
- break;
- default:
- if (cycle_time >= 180) {
- active_time = 110;
- recovery_time = cycle_time - 120;
- } else {
- active_time = ide_pio_timings[pio].active_time;
- recovery_time = cycle_time - active_time;
- }
- }
- printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio);
- }
-
- if (!HWIF(drive)->channel && drive->media != ide_disk) {
- outb(0x5f, QD_CONTROL_PORT);
- printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO "
- "and post-write buffer on %s.\n",
- drive->name, HWIF(drive)->name);
- }
-
- qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time));
-}
-
-/*
- * qd_testreg
- *
- * tests if the given port is a register
- */
-
-static int __init qd_testreg(int port)
-{
- unsigned long flags;
- u8 savereg, readreg;
-
- local_irq_save(flags);
- savereg = inb_p(port);
- outb_p(QD_TESTVAL, port); /* safe value */
- readreg = inb_p(port);
- outb(savereg, port);
- local_irq_restore(flags);
-
- if (savereg == QD_TESTVAL) {
- printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n");
- printk(KERN_ERR "Please contact maintainers to tell about your hardware\n");
- printk(KERN_ERR "Assuming qd65xx is not present.\n");
- return 1;
- }
-
- return (readreg != QD_TESTVAL);
-}
-
-/*
- * qd_setup:
- *
- * called to setup an ata channel : adjusts attributes & links for tuning
- */
-
-static void __init qd_setup(ide_hwif_t *hwif, int base, int config)
-{
- hwif->select_data = base;
- hwif->config_data = config;
-}
-
-static void __init qd6500_port_init_devs(ide_hwif_t *hwif)
-{
- u8 base = hwif->select_data, config = QD_CONFIG(hwif);
-
- hwif->drives[0].drive_data = QD6500_DEF_DATA;
- hwif->drives[1].drive_data = QD6500_DEF_DATA;
-}
-
-static void __init qd6580_port_init_devs(ide_hwif_t *hwif)
-{
- u16 t1, t2;
- u8 base = hwif->select_data, config = QD_CONFIG(hwif);
-
- if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
- t1 = QD6580_DEF_DATA;
- t2 = QD6580_DEF_DATA2;
- } else
- t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
-
- hwif->drives[0].drive_data = t1;
- hwif->drives[1].drive_data = t2;
-}
-
-static const struct ide_port_info qd65xx_port_info __initdata = {
- .chipset = ide_qd65xx,
- .host_flags = IDE_HFLAG_IO_32BIT |
- IDE_HFLAG_NO_DMA |
- IDE_HFLAG_NO_AUTOTUNE,
- .pio_mask = ATA_PIO4,
-};
-
-/*
- * qd_probe:
- *
- * looks at the specified baseport, and if qd found, registers & initialises it
- * return 1 if another qd may be probed
- */
-
-static int __init qd_probe(int base)
-{
- ide_hwif_t *hwif;
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
- u8 config;
- u8 unit;
-
- config = inb(QD_CONFIG_PORT);
-
- if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) )
- return 1;
-
- unit = ! (config & QD_CONFIG_IDE_BASEPORT);
-
- if ((config & 0xf0) == QD_CONFIG_QD6500) {
-
- if (qd_testreg(base)) return 1; /* bad register */
-
- /* qd6500 found */
-
- hwif = &ide_hwifs[unit];
- printk(KERN_NOTICE "%s: qd6500 at %#x\n", hwif->name, base);
- printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n",
- config, QD_ID3);
-
- if (config & QD_CONFIG_DISABLED) {
- printk(KERN_WARNING "qd6500 is disabled !\n");
- return 1;
- }
-
- qd_setup(hwif, base, config);
-
- hwif->port_init_devs = qd6500_port_init_devs;
- hwif->set_pio_mode = &qd6500_set_pio_mode;
-
- idx[unit] = unit;
-
- ide_device_add(idx, &qd65xx_port_info);
-
- return 1;
- }
-
- if (((config & 0xf0) == QD_CONFIG_QD6580_A) ||
- ((config & 0xf0) == QD_CONFIG_QD6580_B)) {
-
- u8 control;
-
- if (qd_testreg(base) || qd_testreg(base+0x02)) return 1;
- /* bad registers */
-
- /* qd6580 found */
-
- control = inb(QD_CONTROL_PORT);
-
- printk(KERN_NOTICE "qd6580 at %#x\n", base);
- printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
- config, control, QD_ID3);
-
- outb(QD_DEF_CONTR, QD_CONTROL_PORT);
-
- if (control & QD_CONTR_SEC_DISABLED) {
- /* secondary disabled */
-
- hwif = &ide_hwifs[unit];
- printk(KERN_INFO "%s: qd6580: single IDE board\n",
- hwif->name);
-
- qd_setup(hwif, base, config | (control << 8));
-
- hwif->port_init_devs = qd6580_port_init_devs;
- hwif->set_pio_mode = &qd6580_set_pio_mode;
-
- idx[unit] = unit;
-
- ide_device_add(idx, &qd65xx_port_info);
-
- return 1;
- } else {
- ide_hwif_t *mate;
-
- hwif = &ide_hwifs[0];
- mate = &ide_hwifs[1];
- /* secondary enabled */
- printk(KERN_INFO "%s&%s: qd6580: dual IDE board\n",
- hwif->name, mate->name);
-
- qd_setup(hwif, base, config | (control << 8));
-
- hwif->port_init_devs = qd6580_port_init_devs;
- hwif->set_pio_mode = &qd6580_set_pio_mode;
-
- qd_setup(mate, base, config | (control << 8));
-
- mate->port_init_devs = qd6580_port_init_devs;
- mate->set_pio_mode = &qd6580_set_pio_mode;
-
- idx[0] = 0;
- idx[1] = 1;
-
- ide_device_add(idx, &qd65xx_port_info);
-
- return 0; /* no other qd65xx possible */
- }
- }
- /* no qd65xx found */
- return 1;
-}
-
-int probe_qd65xx = 0;
-
-module_param_named(probe, probe_qd65xx, bool, 0);
-MODULE_PARM_DESC(probe, "probe for QD65xx chipsets");
-
-static int __init qd65xx_init(void)
-{
- if (probe_qd65xx == 0)
- return -ENODEV;
-
- if (qd_probe(0x30))
- qd_probe(0xb0);
- if (ide_hwifs[0].chipset != ide_qd65xx &&
- ide_hwifs[1].chipset != ide_qd65xx)
- return -ENODEV;
- return 0;
-}
-
-module_init(qd65xx_init);
-
-MODULE_AUTHOR("Samuel Thibault");
-MODULE_DESCRIPTION("support of qd65xx vlb ide chipset");
-MODULE_LICENSE("GPL");
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