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linux/drivers/ide/aec62xx.c

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/*
* Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <asm/io.h>
#define DRV_NAME "aec62xx"
struct chipset_bus_clock_list_entry {
u8 xfer_speed;
u8 chipset_settings;
u8 ultra_settings;
};
static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
{ XFER_UDMA_6, 0x31, 0x07 },
{ XFER_UDMA_5, 0x31, 0x06 },
{ XFER_UDMA_4, 0x31, 0x05 },
{ XFER_UDMA_3, 0x31, 0x04 },
{ XFER_UDMA_2, 0x31, 0x03 },
{ XFER_UDMA_1, 0x31, 0x02 },
{ XFER_UDMA_0, 0x31, 0x01 },
{ XFER_MW_DMA_2, 0x31, 0x00 },
{ XFER_MW_DMA_1, 0x31, 0x00 },
{ XFER_MW_DMA_0, 0x0a, 0x00 },
{ XFER_PIO_4, 0x31, 0x00 },
{ XFER_PIO_3, 0x33, 0x00 },
{ XFER_PIO_2, 0x08, 0x00 },
{ XFER_PIO_1, 0x0a, 0x00 },
{ XFER_PIO_0, 0x00, 0x00 },
{ 0, 0x00, 0x00 }
};
static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
{ XFER_UDMA_6, 0x41, 0x06 },
{ XFER_UDMA_5, 0x41, 0x05 },
{ XFER_UDMA_4, 0x41, 0x04 },
{ XFER_UDMA_3, 0x41, 0x03 },
{ XFER_UDMA_2, 0x41, 0x02 },
{ XFER_UDMA_1, 0x41, 0x01 },
{ XFER_UDMA_0, 0x41, 0x01 },
{ XFER_MW_DMA_2, 0x41, 0x00 },
{ XFER_MW_DMA_1, 0x42, 0x00 },
{ XFER_MW_DMA_0, 0x7a, 0x00 },
{ XFER_PIO_4, 0x41, 0x00 },
{ XFER_PIO_3, 0x43, 0x00 },
{ XFER_PIO_2, 0x78, 0x00 },
{ XFER_PIO_1, 0x7a, 0x00 },
{ XFER_PIO_0, 0x70, 0x00 },
{ 0, 0x00, 0x00 }
};
/*
* TO DO: active tuning and correction of cards without a bios.
*/
static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
{
for ( ; chipset_table->xfer_speed ; chipset_table++)
if (chipset_table->xfer_speed == speed) {
return chipset_table->chipset_settings;
}
return chipset_table->chipset_settings;
}
static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
{
for ( ; chipset_table->xfer_speed ; chipset_table++)
if (chipset_table->xfer_speed == speed) {
return chipset_table->ultra_settings;
}
return chipset_table->ultra_settings;
}
ide: move ide_config_drive_speed() calls to upper layers (take 2) * Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16. * Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program the host for the transfer mode after programming the device. Set it in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac and via82cxxx host drivers. * Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely skip programming of host/device for the transfer mode ("smart" hosts). Set it in it821x host driver and check it in ide_tune_dma(). * Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all direct ->set_pio_mode/->speedproc users to use these helpers. * Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc methods to callers. * Rename ->speedproc method to ->set_dma_mode, make it void and update all implementations accordingly. * Update ide_set_xfer_rate() comments. * Unexport ide_config_drive_speed(). v2: * Fix issues noticed by Sergei: - export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt to setting DMA modes from sc1200_set_pio_mode() to do_special() - check IDE_HFLAG_NO_SET_MODE in ide_tune_dma() - check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode() - check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode() - return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL - don't set ->set_{pio,dma}_mode on it821x in "smart" mode - fix build problem in pmac.c - minor fixes in au1xxx-ide.c/cs5530.c/siimage.c - improve patch description Changes in behavior caused by this patch: - HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change PIO mode if it821x controller is in "smart" mode - removal of two debugging printk-s (from cs5530.c and sc1200.c) - transfer modes 0x00-0x07 passed from user space may be programmed twice on the device (not really an issue since 0x00 is not supported correctly by any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 08:47:51 -07:00
static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
u16 d_conf = 0;
u8 ultra = 0, ultra_conf = 0;
u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
unsigned long flags;
local_irq_save(flags);
/* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
tmp0 = pci_bus_clock_list(speed, bus_clock);
d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
tmp1 = 0x00;
tmp2 = 0x00;
pci_read_config_byte(dev, 0x54, &ultra);
tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
pci_write_config_byte(dev, 0x54, tmp2);
local_irq_restore(flags);
}
ide: move ide_config_drive_speed() calls to upper layers (take 2) * Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16. * Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program the host for the transfer mode after programming the device. Set it in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac and via82cxxx host drivers. * Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely skip programming of host/device for the transfer mode ("smart" hosts). Set it in it821x host driver and check it in ide_tune_dma(). * Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all direct ->set_pio_mode/->speedproc users to use these helpers. * Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc methods to callers. * Rename ->speedproc method to ->set_dma_mode, make it void and update all implementations accordingly. * Update ide_set_xfer_rate() comments. * Unexport ide_config_drive_speed(). v2: * Fix issues noticed by Sergei: - export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt to setting DMA modes from sc1200_set_pio_mode() to do_special() - check IDE_HFLAG_NO_SET_MODE in ide_tune_dma() - check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode() - check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode() - return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL - don't set ->set_{pio,dma}_mode on it821x in "smart" mode - fix build problem in pmac.c - minor fixes in au1xxx-ide.c/cs5530.c/siimage.c - improve patch description Changes in behavior caused by this patch: - HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change PIO mode if it821x controller is in "smart" mode - removal of two debugging printk-s (from cs5530.c and sc1200.c) - transfer modes 0x00-0x07 passed from user space may be programmed twice on the device (not really an issue since 0x00 is not supported correctly by any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13 08:47:51 -07:00
static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
u8 unit = drive->dn & 1;
u8 tmp1 = 0, tmp2 = 0;
u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
unsigned long flags;
local_irq_save(flags);
/* high 4-bits: Active, low 4-bits: Recovery */
pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
drive_conf = pci_bus_clock_list(speed, bus_clock);
pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
local_irq_restore(flags);
}
static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
}
static int init_chipset_aec62xx(struct pci_dev *dev)
{
/* These are necessary to get AEC6280 Macintosh cards to work */
if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
(dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
u8 reg49h = 0, reg4ah = 0;
/* Clear reset and test bits. */
pci_read_config_byte(dev, 0x49, &reg49h);
pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
/* Enable chip interrupt output. */
pci_read_config_byte(dev, 0x4a, &reg4ah);
pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
/* Enable burst mode. */
pci_read_config_byte(dev, 0x4a, &reg4ah);
pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
}
return 0;
}
static u8 atp86x_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
pci_read_config_byte(dev, 0x49, &ata66);
return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
}
static const struct ide_port_ops atp850_port_ops = {
.set_pio_mode = aec_set_pio_mode,
.set_dma_mode = aec6210_set_mode,
};
static const struct ide_port_ops atp86x_port_ops = {
.set_pio_mode = aec_set_pio_mode,
.set_dma_mode = aec6260_set_mode,
.cable_detect = atp86x_cable_detect,
};
static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
{ /* 0: AEC6210 */
.name = DRV_NAME,
.init_chipset = init_chipset_aec62xx,
.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
.port_ops = &atp850_port_ops,
.host_flags = IDE_HFLAG_SERIALIZE |
IDE_HFLAG_NO_ATAPI_DMA |
IDE_HFLAG_NO_DSC |
IDE_HFLAG_OFF_BOARD,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA2,
},
{ /* 1: AEC6260 */
.name = DRV_NAME,
.init_chipset = init_chipset_aec62xx,
.port_ops = &atp86x_port_ops,
.host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
IDE_HFLAG_OFF_BOARD,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA4,
},
{ /* 2: AEC6260R */
.name = DRV_NAME,
.init_chipset = init_chipset_aec62xx,
.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
.port_ops = &atp86x_port_ops,
.host_flags = IDE_HFLAG_NO_ATAPI_DMA |
IDE_HFLAG_NON_BOOTABLE,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA4,
},
{ /* 3: AEC6280 */
.name = DRV_NAME,
.init_chipset = init_chipset_aec62xx,
.port_ops = &atp86x_port_ops,
.host_flags = IDE_HFLAG_NO_ATAPI_DMA |
IDE_HFLAG_OFF_BOARD,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
},
{ /* 4: AEC6280R */
.name = DRV_NAME,
.init_chipset = init_chipset_aec62xx,
.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
.port_ops = &atp86x_port_ops,
.host_flags = IDE_HFLAG_NO_ATAPI_DMA |
IDE_HFLAG_OFF_BOARD,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
}
};
/**
* aec62xx_init_one - called when a AEC is found
* @dev: the aec62xx device
* @id: the matching pci id
*
* Called when the PCI registration layer (or the IDE initialization)
* finds a device matching our IDE device tables.
*
* NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
* chips, pass a local copy of 'struct ide_port_info' down the call chain.
*/
static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
const struct chipset_bus_clock_list_entry *bus_clock;
struct ide_port_info d;
u8 idx = id->driver_data;
int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
int err;
if (bus_speed <= 33)
bus_clock = aec6xxx_33_base;
else
bus_clock = aec6xxx_34_base;
err = pci_enable_device(dev);
if (err)
return err;
d = aec62xx_chipsets[idx];
if (idx == 3 || idx == 4) {
unsigned long dma_base = pci_resource_start(dev, 4);
if (inb(dma_base + 2) & 0x10) {
printk(KERN_INFO DRV_NAME " %s: AEC6880%s card detected"
"\n", pci_name(dev), (idx == 4) ? "R" : "");
d.udma_mask = ATA_UDMA6;
}
}
err = ide_pci_init_one(dev, &d, (void *)bus_clock);
if (err)
pci_disable_device(dev);
return err;
}
static void __devexit aec62xx_remove(struct pci_dev *dev)
{
ide_pci_remove(dev);
pci_disable_device(dev);
}
static const struct pci_device_id aec62xx_pci_tbl[] = {
{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
static struct pci_driver aec62xx_pci_driver = {
.name = "AEC62xx_IDE",
.id_table = aec62xx_pci_tbl,
.probe = aec62xx_init_one,
.remove = __devexit_p(aec62xx_remove),
.suspend = ide_pci_suspend,
.resume = ide_pci_resume,
};
static int __init aec62xx_ide_init(void)
{
return ide_pci_register_driver(&aec62xx_pci_driver);
}
static void __exit aec62xx_ide_exit(void)
{
pci_unregister_driver(&aec62xx_pci_driver);
}
module_init(aec62xx_ide_init);
module_exit(aec62xx_ide_exit);
MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
MODULE_LICENSE("GPL");