/*
- * linux/drivers/ide/pci/cy82c693.c Version 0.40 Sep. 10, 2002
- *
* Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator
*
*
* The CY82C693 chipset is used on Digital's PC-Alpha 164SX boards.
* Writing the driver was quite simple, since most of the job is
- * done by the generic pci-ide support.
+ * done by the generic pci-ide support.
* The hard part was finding the CY82C693's datasheet on Cypress's
* web page :-(. But Altavista solved this problem :-).
*
* - I recently got a 16.8G IBM DTTA, so I was able to test it with
* a large and fast disk - the results look great, so I'd say the
* driver is working fine :-)
- * hdparm -t reports 8.17 MB/sec at about 6% CPU usage for the DTTA
- * - this is my first linux driver, so there's probably a lot of room
+ * hdparm -t reports 8.17 MB/sec at about 6% CPU usage for the DTTA
+ * - this is my first linux driver, so there's probably a lot of room
* for optimizations and bug fixing, so feel free to do it.
- * - use idebus=xx parameter to set PCI bus speed - needed to calc
- * timings for PIO modes (default will be 40)
- * - if using PIO mode it's a good idea to set the PIO mode and
+ * - if using PIO mode it's a good idea to set the PIO mode and
* 32-bit I/O support (if possible), e.g. hdparm -p2 -c1 /dev/hda
* - I had some problems with my IBM DHEA with PIO modes < 2
* (lost interrupts) ?????
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <asm/io.h>
+#define DRV_NAME "cy82c693"
+
/* the current version */
#define CY82_VERSION "CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)"
#define CY82_INDEX_CHANNEL1 0x31
#define CY82_INDEX_TIMEOUT 0x32
-/* the max PIO mode - from datasheet */
-#define CY82C693_MAX_PIO 4
-
/* the min and max PCI bus speed in MHz - from datasheet */
#define CY82C963_MIN_BUS_SPEED 25
#define CY82C963_MAX_BUS_SPEED 33
* calc clocks using bus_speed
* returns (rounded up) time in bus clocks for time in ns
*/
-static int calc_clk (int time, int bus_speed)
+static int calc_clk(int time, int bus_speed)
{
int clocks;
- clocks = (time*bus_speed+999)/1000 -1;
+ clocks = (time*bus_speed+999)/1000 - 1;
if (clocks < 0)
clocks = 0;
* NOTE: for mode 0,1 and 2 drives 8-bit IDE command control registers are used
* for mode 3 and 4 drives 8 and 16-bit timings are the same
*
- */
-static void compute_clocks (u8 pio, pio_clocks_t *p_pclk)
+ */
+static void compute_clocks(u8 pio, pio_clocks_t *p_pclk)
{
+ struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
int clk1, clk2;
- int bus_speed = system_bus_clock(); /* get speed of PCI bus */
+ int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
/* we don't check against CY82C693's min and max speed,
* so you can play with the idebus=xx parameter
*/
- if (pio > CY82C693_MAX_PIO)
- pio = CY82C693_MAX_PIO;
-
/* let's calc the address setup time clocks */
- p_pclk->address_time = (u8)calc_clk(ide_pio_timings[pio].setup_time, bus_speed);
+ p_pclk->address_time = (u8)calc_clk(t->setup, bus_speed);
/* let's calc the active and recovery time clocks */
- clk1 = calc_clk(ide_pio_timings[pio].active_time, bus_speed);
+ clk1 = calc_clk(t->active, bus_speed);
/* calc recovery timing */
- clk2 = ide_pio_timings[pio].cycle_time -
- ide_pio_timings[pio].active_time -
- ide_pio_timings[pio].setup_time;
+ clk2 = t->cycle - t->active - t->setup;
clk2 = calc_clk(clk2, bus_speed);
clk1 = (clk1<<4)|clk2; /* combine active and recovery clocks */
/* note: we use the same values for 16bit IOR and IOW
- * those are all the same, since I don't have other
+ * those are all the same, since I don't have other
* timings than those from ide-lib.c
*/
* set DMA mode a specific channel for CY82C693
*/
-static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single)
+static void cy82c693_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
- u8 index = 0, data = 0;
+ ide_hwif_t *hwif = drive->hwif;
+ u8 single = (mode & 0x10) >> 4, index = 0, data = 0;
- if (mode>2) /* make sure we set a valid mode */
- mode = 2;
-
- if (mode > drive->id->tDMA) /* to be absolutly sure we have a valid mode */
- mode = drive->id->tDMA;
-
- index = (HWIF(drive)->channel==0) ? CY82_INDEX_CHANNEL0 : CY82_INDEX_CHANNEL1;
+ index = hwif->channel ? CY82_INDEX_CHANNEL1 : CY82_INDEX_CHANNEL0;
#if CY82C693_DEBUG_LOGS
/* for debug let's show the previous values */
- HWIF(drive)->OUTB(index, CY82_INDEX_PORT);
- data = HWIF(drive)->INB(CY82_DATA_PORT);
+ outb(index, CY82_INDEX_PORT);
+ data = inb(CY82_DATA_PORT);
- printk (KERN_INFO "%s (ch=%d, dev=%d): DMA mode is %d (single=%d)\n",
+ printk(KERN_INFO "%s (ch=%d, dev=%d): DMA mode is %d (single=%d)\n",
drive->name, HWIF(drive)->channel, drive->select.b.unit,
(data&0x3), ((data>>2)&1));
#endif /* CY82C693_DEBUG_LOGS */
- data = (u8)mode|(u8)(single<<2);
+ data = (mode & 3) | (single << 2);
- HWIF(drive)->OUTB(index, CY82_INDEX_PORT);
- HWIF(drive)->OUTB(data, CY82_DATA_PORT);
+ outb(index, CY82_INDEX_PORT);
+ outb(data, CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
printk(KERN_INFO "%s (ch=%d, dev=%d): set DMA mode to %d (single=%d)\n",
drive->name, HWIF(drive)->channel, drive->select.b.unit,
- mode, single);
+ mode & 3, single);
#endif /* CY82C693_DEBUG_INFO */
- /*
+ /*
* note: below we set the value for Bus Master IDE TimeOut Register
* I'm not absolutly sure what this does, but it solved my problem
* with IDE DMA and sound, so I now can play sound and work with
*/
data = BUSMASTER_TIMEOUT;
- HWIF(drive)->OUTB(CY82_INDEX_TIMEOUT, CY82_INDEX_PORT);
- HWIF(drive)->OUTB(data, CY82_DATA_PORT);
-
-#if CY82C693_DEBUG_INFO
- printk (KERN_INFO "%s: Set IDE Bus Master TimeOut Register to 0x%X\n",
- drive->name, data);
-#endif /* CY82C693_DEBUG_INFO */
-}
-
-/*
- * used to set DMA mode for CY82C693 (single and multi modes)
- */
-static int cy82c693_ide_dma_on (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
+ outb(CY82_INDEX_TIMEOUT, CY82_INDEX_PORT);
+ outb(data, CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
- printk (KERN_INFO "dma_on: %s\n", drive->name);
+ printk(KERN_INFO "%s: Set IDE Bus Master TimeOut Register to 0x%X\n",
+ drive->name, data);
#endif /* CY82C693_DEBUG_INFO */
-
- if (id != NULL) {
- /* Enable DMA on any drive that has DMA
- * (multi or single) enabled
- */
- if (id->field_valid & 2) { /* regular DMA */
- int mmode, smode;
-
- mmode = id->dma_mword & (id->dma_mword >> 8);
- smode = id->dma_1word & (id->dma_1word >> 8);
-
- if (mmode != 0) {
- /* enable multi */
- cy82c693_dma_enable(drive, (mmode >> 1), 0);
- } else if (smode != 0) {
- /* enable single */
- cy82c693_dma_enable(drive, (smode >> 1), 1);
- }
- }
- }
- return __ide_dma_on(drive);
}
-/*
- * tune ide drive - set PIO mode
- */
-static void cy82c693_tune_drive (ide_drive_t *drive, u8 pio)
+static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
pio_clocks_t pclk;
unsigned int addrCtrl;
#if CY82C693_DEBUG_LOGS
/* for debug let's show the register values */
-
- if (drive->select.b.unit == 0) {
+
+ if (drive->select.b.unit == 0) {
/*
- * get master drive registers
+ * get master drive registers
* address setup control register
* is 32 bit !!!
- */
- pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
+ */
+ pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
addrCtrl &= 0x0F;
/* now let's get the remaining registers */
* set slave drive registers
* address setup control register
* is 32 bit !!!
- */
+ */
pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
addrCtrl &= 0xF0;
addrCtrl, pclk.time_16r, pclk.time_16w, pclk.time_8);
#endif /* CY82C693_DEBUG_LOGS */
- /* first let's calc the pio modes */
- pio = ide_get_best_pio_mode(drive, pio, CY82C693_MAX_PIO, NULL);
-
-#if CY82C693_DEBUG_INFO
- printk (KERN_INFO "%s: Selected PIO mode %d\n", drive->name, pio);
-#endif /* CY82C693_DEBUG_INFO */
-
/* let's calc the values for this PIO mode */
compute_clocks(pio, &pclk);
* set master drive
* address setup control register
* is 32 bit !!!
- */
+ */
pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
-
+
addrCtrl &= (~0xF);
addrCtrl |= (unsigned int)pclk.address_time;
pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl);
pci_write_config_byte(dev, CY82_IDE_MASTER_IOR, pclk.time_16r);
pci_write_config_byte(dev, CY82_IDE_MASTER_IOW, pclk.time_16w);
pci_write_config_byte(dev, CY82_IDE_MASTER_8BIT, pclk.time_8);
-
+
addrCtrl &= 0xF;
} else {
/*
* set slave drive
* address setup control register
* is 32 bit !!!
- */
+ */
pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
addrCtrl &= (~0xF0);
addrCtrl >>= 4;
addrCtrl &= 0xF;
- }
+ }
#if CY82C693_DEBUG_INFO
printk(KERN_INFO "%s (ch=%d, dev=%d): set PIO timing to "
/*
* this function is called during init and is used to setup the cy82c693 chip
*/
-static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const char *name)
+static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev)
{
if (PCI_FUNC(dev->devfn) != 1)
return 0;
#ifdef CY82C693_SETDMA_CLOCK
u8 data = 0;
-#endif /* CY82C693_SETDMA_CLOCK */
+#endif /* CY82C693_SETDMA_CLOCK */
/* write info about this verion of the driver */
printk(KERN_INFO CY82_VERSION "\n");
#ifdef CY82C693_SETDMA_CLOCK
/* okay let's set the DMA clock speed */
-
- outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
- data = inb(CY82_DATA_PORT);
+
+ outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
+ data = inb(CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
- printk(KERN_INFO "%s: Peripheral Configuration Register: 0x%X\n",
- name, data);
+ printk(KERN_INFO DRV_NAME ": Peripheral Configuration Register: 0x%X\n",
+ data);
#endif /* CY82C693_DEBUG_INFO */
- /*
+ /*
* for some reason sometimes the DMA controller
* speed is set to ATCLK/2 ???? - we fix this here
- *
+ *
* note: i don't know what causes this strange behaviour,
* but even changing the dma speed doesn't solve it :-(
- * the ide performance is still only half the normal speed
- *
+ * the ide performance is still only half the normal speed
+ *
* if anybody knows what goes wrong with my machine, please
* let me know - ASK
- */
+ */
data |= 0x03;
- outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
- outb(data, CY82_DATA_PORT);
+ outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
+ outb(data, CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
- printk (KERN_INFO "%s: New Peripheral Configuration Register: 0x%X\n",
- name, data);
+ printk(KERN_INFO ": New Peripheral Configuration Register: 0x%X\n",
+ data);
#endif /* CY82C693_DEBUG_INFO */
#endif /* CY82C693_SETDMA_CLOCK */
return 0;
}
-/*
- * the init function - called for each ide channel once
- */
-static void __devinit init_hwif_cy82c693(ide_hwif_t *hwif)
-{
- hwif->autodma = 0;
-
- hwif->chipset = ide_cy82c693;
- hwif->tuneproc = &cy82c693_tune_drive;
-
- if (!hwif->dma_base) {
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- return;
- }
-
- hwif->atapi_dma = 1;
- hwif->mwdma_mask = 0x04;
- hwif->swdma_mask = 0x04;
-
- hwif->ide_dma_on = &cy82c693_ide_dma_on;
- if (!noautodma)
- hwif->autodma = 1;
- hwif->drives[0].autodma = hwif->autodma;
- hwif->drives[1].autodma = hwif->autodma;
-}
-
-static __devinitdata ide_hwif_t *primary;
-
static void __devinit init_iops_cy82c693(ide_hwif_t *hwif)
{
- if (PCI_FUNC(hwif->pci_dev->devfn) == 1)
+ static ide_hwif_t *primary;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+
+ if (PCI_FUNC(dev->devfn) == 1)
primary = hwif;
else {
hwif->mate = primary;
}
}
-static ide_pci_device_t cy82c693_chipsets[] __devinitdata = {
- { /* 0 */
- .name = "CY82C693",
- .init_chipset = init_chipset_cy82c693,
- .init_iops = init_iops_cy82c693,
- .init_hwif = init_hwif_cy82c693,
- .channels = 1,
- .autodma = AUTODMA,
- .bootable = ON_BOARD,
- }
+static const struct ide_port_ops cy82c693_port_ops = {
+ .set_pio_mode = cy82c693_set_pio_mode,
+ .set_dma_mode = cy82c693_set_dma_mode,
+};
+
+static const struct ide_port_info cy82c693_chipset __devinitdata = {
+ .name = DRV_NAME,
+ .init_chipset = init_chipset_cy82c693,
+ .init_iops = init_iops_cy82c693,
+ .port_ops = &cy82c693_port_ops,
+ .chipset = ide_cy82c693,
+ .host_flags = IDE_HFLAG_SINGLE,
+ .pio_mask = ATA_PIO4,
+ .swdma_mask = ATA_SWDMA2,
+ .mwdma_mask = ATA_MWDMA2,
};
static int __devinit cy82c693_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- ide_pci_device_t *d = &cy82c693_chipsets[id->driver_data];
struct pci_dev *dev2;
int ret = -ENODEV;
/* CY82C693 is more than only a IDE controller.
Function 1 is primary IDE channel, function 2 - secondary. */
- if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE &&
+ if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE &&
PCI_FUNC(dev->devfn) == 1) {
dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
- ret = ide_setup_pci_devices(dev, dev2, d);
- /* We leak pci refs here but thats ok - we can't be unloaded */
+ ret = ide_pci_init_two(dev, dev2, &cy82c693_chipset, NULL);
+ if (ret)
+ pci_dev_put(dev2);
}
return ret;
}
-static struct pci_device_id cy82c693_pci_tbl[] = {
- { PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+static void __devexit cy82c693_remove(struct pci_dev *dev)
+{
+ struct ide_host *host = pci_get_drvdata(dev);
+ struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;
+
+ ide_pci_remove(dev);
+ pci_dev_put(dev2);
+}
+
+static const struct pci_device_id cy82c693_pci_tbl[] = {
+ { PCI_VDEVICE(CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693), 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, cy82c693_pci_tbl);
.name = "Cypress_IDE",
.id_table = cy82c693_pci_tbl,
.probe = cy82c693_init_one,
+ .remove = cy82c693_remove,
};
static int __init cy82c693_ide_init(void)
return ide_pci_register_driver(&driver);
}
+static void __exit cy82c693_ide_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
module_init(cy82c693_ide_init);
+module_exit(cy82c693_ide_exit);
MODULE_AUTHOR("Andreas Krebs, Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for the Cypress CY82C693 IDE");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff