/* * 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; } static void aec6210_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) { 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; const u8 speed = drive->dma_mode; 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); } static void aec6260_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) { 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; const u8 speed = drive->dma_mode; 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_hwif_t *hwif, ide_drive_t *drive) { drive->dma_mode = drive->pio_mode; hwif->port_ops->set_dma_mode(hwif, drive); } 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, ®49h); pci_write_config_byte(dev, 0x49, reg49h & ~0x30); /* Enable chip interrupt output. */ pci_read_config_byte(dev, 0x4a, ®4ah); pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01); /* Enable burst mode. */ pci_read_config_byte(dev, 0x4a, ®4ah); 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");