diff options
Diffstat (limited to 'drivers/ide/pci/opti621.c')
| -rw-r--r-- | drivers/ide/pci/opti621.c | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c deleted file mode 100644 index 46e8748f507..00000000000 --- a/drivers/ide/pci/opti621.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - * Copyright (C) 1996-1998 Linus Torvalds & authors (see below) - */ - -/* - * Authors: - * Jaromir Koutek <miri@punknet.cz>, - * Jan Harkes <jaharkes@cwi.nl>, - * Mark Lord <mlord@pobox.com> - * Some parts of code are from ali14xx.c and from rz1000.c. - * - * OPTi is trademark of OPTi, Octek is trademark of Octek. - * - * I used docs from OPTi databook, from ftp.opti.com, file 9123-0002.ps - * and disassembled/traced setupvic.exe (DOS program). - * It increases kernel code about 2 kB. - * I don't have this card no more, but I hope I can get some in case - * of needed development. - * My card is Octek PIDE 1.01 (on card) or OPTiViC (program). - * It has a place for a secondary connector in circuit, but nothing - * is there. Also BIOS says no address for - * secondary controller (see bellow in ide_init_opti621). - * I've only tested this on my system, which only has one disk. - * It's Western Digital WDAC2850, with PIO mode 3. The PCI bus - * is at 20 MHz (I have DX2/80, I tried PCI at 40, but I got random - * lockups). I tried the OCTEK double speed CD-ROM and - * it does not work! But I can't boot DOS also, so it's probably - * hardware fault. I have connected Conner 80MB, the Seagate 850MB (no - * problems) and Seagate 1GB (as slave, WD as master). My experiences - * with the third, 1GB drive: I got 3MB/s (hdparm), but sometimes - * it slows to about 100kB/s! I don't know why and I have - * not this drive now, so I can't try it again. - * I write this driver because I lost the paper ("manual") with - * settings of jumpers on the card and I have to boot Linux with - * Loadlin except LILO, cause I have to run the setupvic.exe program - * already or I get disk errors (my test: rpm -Vf - * /usr/X11R6/bin/XF86_SVGA - or any big file). - * Some numbers from hdparm -t /dev/hda: - * Timing buffer-cache reads: 32 MB in 3.02 seconds =10.60 MB/sec - * Timing buffered disk reads: 16 MB in 5.52 seconds = 2.90 MB/sec - * I have 4 Megs/s before, but I don't know why (maybe changes - * in hdparm test). - * After release of 0.1, I got some successful reports, so it might work. - * - * The main problem with OPTi is that some timings for master - * and slave must be the same. For example, if you have master - * PIO 3 and slave PIO 0, driver have to set some timings of - * master for PIO 0. Second problem is that opti621_set_pio_mode - * got only one drive to set, but have to set both drives. - * This is solved in compute_pios. If you don't set - * the second drive, compute_pios use ide_get_best_pio_mode - * for autoselect mode (you can change it to PIO 0, if you want). - * If you then set the second drive to another PIO, the old value - * (automatically selected) will be overrided by yours. - * There is a 25/33MHz switch in configuration - * register, but driver is written for use at any frequency which get - * (use idebus=xx to select PCI bus speed). - * - * Version 0.1, Nov 8, 1996 - * by Jaromir Koutek, for 2.1.8. - * Initial version of driver. - * - * Version 0.2 - * Number 0.2 skipped. - * - * Version 0.3, Nov 29, 1997 - * by Mark Lord (probably), for 2.1.68 - * Updates for use with new IDE block driver. - * - * Version 0.4, Dec 14, 1997 - * by Jan Harkes - * Fixed some errors and cleaned the code. - * - * Version 0.5, Jan 2, 1998 - * by Jaromir Koutek - * Updates for use with (again) new IDE block driver. - * Update of documentation. - * - * Version 0.6, Jan 2, 1999 - * by Jaromir Koutek - * Reversed to version 0.3 of the driver, because - * 0.5 doesn't work. - */ - -#define OPTI621_DEBUG /* define for debug messages */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/hdreg.h> -#include <linux/ide.h> - -#include <asm/io.h> - -//#define OPTI621_MAX_PIO 3 -/* In fact, I do not have any PIO 4 drive - * (address: 25 ns, data: 70 ns, recovery: 35 ns), - * but OPTi 82C621 is programmable and it can do (minimal values): - * on 40MHz PCI bus (pulse 25 ns): - * address: 25 ns, data: 25 ns, recovery: 50 ns; - * on 20MHz PCI bus (pulse 50 ns): - * address: 50 ns, data: 50 ns, recovery: 100 ns. - */ - -/* #define READ_PREFETCH 0 */ -/* Uncomment for disable read prefetch. - * There is some readprefetch capatibility in hdparm, - * but when I type hdparm -P 1 /dev/hda, I got errors - * and till reset drive is inaccessible. - * This (hw) read prefetch is safe on my drive. - */ - -#ifndef READ_PREFETCH -#define READ_PREFETCH 0x40 /* read prefetch is enabled */ -#endif /* else read prefetch is disabled */ - -#define READ_REG 0 /* index of Read cycle timing register */ -#define WRITE_REG 1 /* index of Write cycle timing register */ -#define CNTRL_REG 3 /* index of Control register */ -#define STRAP_REG 5 /* index of Strap register */ -#define MISC_REG 6 /* index of Miscellaneous register */ - -static int reg_base; - -#define PIO_NOT_EXIST 254 -#define PIO_DONT_KNOW 255 - -static DEFINE_SPINLOCK(opti621_lock); - -/* there are stored pio numbers from other calls of opti621_set_pio_mode */ -static void compute_pios(ide_drive_t *drive, const u8 pio) -/* Store values into drive->drive_data - * second_contr - 0 for primary controller, 1 for secondary - * slave_drive - 0 -> pio is for master, 1 -> pio is for slave - * pio - PIO mode for selected drive (for other we don't know) - */ -{ - int d; - ide_hwif_t *hwif = HWIF(drive); - - drive->drive_data = pio; - - for (d = 0; d < 2; ++d) { - drive = &hwif->drives[d]; - if (drive->present) { - if (drive->drive_data == PIO_DONT_KNOW) - drive->drive_data = ide_get_best_pio_mode(drive, 255, 3); -#ifdef OPTI621_DEBUG - printk("%s: Selected PIO mode %d\n", - drive->name, drive->drive_data); -#endif - } else { - drive->drive_data = PIO_NOT_EXIST; - } - } -} - -static int cmpt_clk(int time, int bus_speed) -/* Returns (rounded up) time in clocks for time in ns, - * with bus_speed in MHz. - * Example: bus_speed = 40 MHz, time = 80 ns - * 1000/40 = 25 ns (clk value), - * 80/25 = 3.2, rounded up to 4 (I hope ;-)). - * Use idebus=xx to select right frequency. - */ -{ - return ((time*bus_speed+999)/1000); -} - -/* Write value to register reg, base of register - * is at reg_base (0x1f0 primary, 0x170 secondary, - * if not changed by PCI configuration). - * This is from setupvic.exe program. - */ -static void write_reg(u8 value, int reg) -{ - inw(reg_base + 1); - inw(reg_base + 1); - outb(3, reg_base + 2); - outb(value, reg_base + reg); - outb(0x83, reg_base + 2); -} - -/* Read value from register reg, base of register - * is at reg_base (0x1f0 primary, 0x170 secondary, - * if not changed by PCI configuration). - * This is from setupvic.exe program. - */ -static u8 read_reg(int reg) -{ - u8 ret = 0; - - inw(reg_base + 1); - inw(reg_base + 1); - outb(3, reg_base + 2); - ret = inb(reg_base + reg); - outb(0x83, reg_base + 2); - - return ret; -} - -typedef struct pio_clocks_s { - int address_time; /* Address setup (clocks) */ - int data_time; /* Active/data pulse (clocks) */ - int recovery_time; /* Recovery time (clocks) */ -} pio_clocks_t; - -static void compute_clocks(int pio, pio_clocks_t *clks) -{ - if (pio != PIO_NOT_EXIST) { - int adr_setup, data_pls; - int bus_speed = system_bus_clock(); - - adr_setup = ide_pio_timings[pio].setup_time; - data_pls = ide_pio_timings[pio].active_time; - clks->address_time = cmpt_clk(adr_setup, bus_speed); - clks->data_time = cmpt_clk(data_pls, bus_speed); - clks->recovery_time = cmpt_clk(ide_pio_timings[pio].cycle_time - - adr_setup-data_pls, bus_speed); - if (clks->address_time<1) clks->address_time = 1; - if (clks->address_time>4) clks->address_time = 4; - if (clks->data_time<1) clks->data_time = 1; - if (clks->data_time>16) clks->data_time = 16; - if (clks->recovery_time<2) clks->recovery_time = 2; - if (clks->recovery_time>17) clks->recovery_time = 17; - } else { - clks->address_time = 1; - clks->data_time = 1; - clks->recovery_time = 2; - /* minimal values */ - } - -} - -static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio) -{ - /* primary and secondary drives share some registers, - * so we have to program both drives - */ - unsigned long flags; - u8 pio1 = 0, pio2 = 0; - pio_clocks_t first, second; - int ax, drdy; - u8 cycle1, cycle2, misc; - ide_hwif_t *hwif = HWIF(drive); - - /* sets drive->drive_data for both drives */ - compute_pios(drive, pio); - pio1 = hwif->drives[0].drive_data; - pio2 = hwif->drives[1].drive_data; - - compute_clocks(pio1, &first); - compute_clocks(pio2, &second); - - /* ax = max(a1,a2) */ - ax = (first.address_time < second.address_time) ? second.address_time : first.address_time; - - drdy = 2; /* DRDY is default 2 (by OPTi Databook) */ - - cycle1 = ((first.data_time-1)<<4) | (first.recovery_time-2); - cycle2 = ((second.data_time-1)<<4) | (second.recovery_time-2); - misc = READ_PREFETCH | ((ax-1)<<4) | ((drdy-2)<<1); - -#ifdef OPTI621_DEBUG - printk("%s: master: address: %d, data: %d, " - "recovery: %d, drdy: %d [clk]\n", - hwif->name, ax, first.data_time, - first.recovery_time, drdy); - printk("%s: slave: address: %d, data: %d, " - "recovery: %d, drdy: %d [clk]\n", - hwif->name, ax, second.data_time, - second.recovery_time, drdy); -#endif - - spin_lock_irqsave(&opti621_lock, flags); - - reg_base = hwif->io_ports[IDE_DATA_OFFSET]; - - /* allow Register-B */ - outb(0xc0, reg_base + CNTRL_REG); - /* hmm, setupvic.exe does this ;-) */ - outb(0xff, reg_base + 5); - /* if reads 0xff, adapter not exist? */ - (void)inb(reg_base + CNTRL_REG); - /* if reads 0xc0, no interface exist? */ - read_reg(CNTRL_REG); - /* read version, probably 0 */ - read_reg(STRAP_REG); - - /* program primary drive */ - /* select Index-0 for Register-A */ - write_reg(0, MISC_REG); - /* set read cycle timings */ - write_reg(cycle1, READ_REG); - /* set write cycle timings */ - write_reg(cycle1, WRITE_REG); - - /* program secondary drive */ - /* select Index-1 for Register-B */ - write_reg(1, MISC_REG); - /* set read cycle timings */ - write_reg(cycle2, READ_REG); - /* set write cycle timings */ - write_reg(cycle2, WRITE_REG); - - /* use Register-A for drive 0 */ - /* use Register-B for drive 1 */ - write_reg(0x85, CNTRL_REG); - - /* set address setup, DRDY timings, */ - /* and read prefetch for both drives */ - write_reg(misc, MISC_REG); - - spin_unlock_irqrestore(&opti621_lock, flags); -} - -static void __devinit opti621_port_init_devs(ide_hwif_t *hwif) -{ - hwif->drives[0].drive_data = PIO_DONT_KNOW; - hwif->drives[1].drive_data = PIO_DONT_KNOW; -} - -/* - * init_hwif_opti621() is called once for each hwif found at boot. - */ -static void __devinit init_hwif_opti621 (ide_hwif_t *hwif) -{ - hwif->port_init_devs = opti621_port_init_devs; - hwif->set_pio_mode = &opti621_set_pio_mode; -} - -static const struct ide_port_info opti621_chipsets[] __devinitdata = { - { /* 0 */ - .name = "OPTI621", - .init_hwif = init_hwif_opti621, - .enablebits = {{0x45,0x80,0x00}, {0x40,0x08,0x00}}, - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | - IDE_HFLAG_BOOTABLE, - .pio_mask = ATA_PIO3, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, - },{ /* 1 */ - .name = "OPTI621X", - .init_hwif = init_hwif_opti621, - .enablebits = {{0x45,0x80,0x00}, {0x40,0x08,0x00}}, - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | - IDE_HFLAG_BOOTABLE, - .pio_mask = ATA_PIO3, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, - } -}; - -static int __devinit opti621_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_setup_pci_device(dev, &opti621_chipsets[id->driver_data]); -} - -static const struct pci_device_id opti621_pci_tbl[] = { - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C621), 0 }, - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C825), 1 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, opti621_pci_tbl); - -static struct pci_driver driver = { - .name = "Opti621_IDE", - .id_table = opti621_pci_tbl, - .probe = opti621_init_one, -}; - -static int __init opti621_ide_init(void) -{ - return ide_pci_register_driver(&driver); -} - -module_init(opti621_ide_init); - -MODULE_AUTHOR("Jaromir Koutek, Jan Harkes, Mark Lord"); -MODULE_DESCRIPTION("PCI driver module for Opti621 IDE"); -MODULE_LICENSE("GPL"); |