/* * sata_uli.c - ULi Electronics SATA * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/DocBook/libata.* * * Hardware documentation available under NDA. * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/device.h> #include <scsi/scsi_host.h> #include <linux/libata.h> #define DRV_NAME "sata_uli" #define DRV_VERSION "1.2" enum { uli_5289 = 0, uli_5287 = 1, uli_5281 = 2, uli_max_ports = 4, /* PCI configuration registers */ ULI5287_BASE = 0x90, /* sata0 phy SCR registers */ ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */ ULI5281_BASE = 0x60, /* sata0 phy SCR registers */ ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */ }; struct uli_priv { unsigned int scr_cfg_addr[uli_max_ports]; }; static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg); static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); static const struct pci_device_id uli_pci_tbl[] = { { PCI_VDEVICE(AL, 0x5289), uli_5289 }, { PCI_VDEVICE(AL, 0x5287), uli_5287 }, { PCI_VDEVICE(AL, 0x5281), uli_5281 }, { } /* terminate list */ }; static struct pci_driver uli_pci_driver = { .name = DRV_NAME, .id_table = uli_pci_tbl, .probe = uli_init_one, .remove = ata_pci_remove_one, }; static struct scsi_host_template uli_sht = { .module = THIS_MODULE, .name = DRV_NAME, .ioctl = ata_scsi_ioctl, .queuecommand = ata_scsi_queuecmd, .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, .proc_name = DRV_NAME, .dma_boundary = ATA_DMA_BOUNDARY, .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, }; static const struct ata_port_operations uli_ops = { .port_disable = ata_port_disable, .tf_load = ata_tf_load, .tf_read = ata_tf_read, .check_status = ata_check_status, .exec_command = ata_exec_command, .dev_select = ata_std_dev_select, .bmdma_setup = ata_bmdma_setup, .bmdma_start = ata_bmdma_start, .bmdma_stop = ata_bmdma_stop, .bmdma_status = ata_bmdma_status, .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, .data_xfer = ata_data_xfer, .freeze = ata_bmdma_freeze, .thaw = ata_bmdma_thaw, .error_handler = ata_bmdma_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, .irq_clear = ata_bmdma_irq_clear, .irq_on = ata_irq_on, .irq_ack = ata_irq_ack, .scr_read = uli_scr_read, .scr_write = uli_scr_write, .port_start = ata_port_start, }; static const struct ata_port_info uli_port_info = { .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_IGN_SIMPLEX, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = ATA_UDMA6, .port_ops = &uli_ops, }; MODULE_AUTHOR("Peer Chen"); MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, uli_pci_tbl); MODULE_VERSION(DRV_VERSION); static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg) { struct uli_priv *hpriv = ap->host->private_data; return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg); } static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg); u32 val; pci_read_config_dword(pdev, cfg_addr, &val); return val; } static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); unsigned int cfg_addr = get_scr_cfg_addr(ap, scr); pci_write_config_dword(pdev, cfg_addr, val); } static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg) { if (sc_reg > SCR_CONTROL) return 0xffffffffU; return uli_scr_cfg_read(ap, sc_reg); } static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) { if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0 return; uli_scr_cfg_write(ap, sc_reg, val); } static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; const struct ata_port_info *ppi[] = { &uli_port_info, NULL }; unsigned int board_idx = (unsigned int) ent->driver_data; struct ata_host *host; struct uli_priv *hpriv; void __iomem * const *iomap; struct ata_ioports *ioaddr; int n_ports, rc; if (!printed_version++) dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); rc = pcim_enable_device(pdev); if (rc) return rc; n_ports = 2; if (board_idx == uli_5287) n_ports = 4; /* allocate the host */ host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); if (!host) return -ENOMEM; hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); if (!hpriv) return -ENOMEM; host->private_data = hpriv; /* the first two ports are standard SFF */ rc = ata_pci_init_sff_host(host); if (rc) return rc; rc = ata_pci_init_bmdma(host); if (rc) return rc; iomap = host->iomap; switch (board_idx) { case uli_5287: /* If there are four, the last two live right after * the standard SFF ports. */ hpriv->scr_cfg_addr[0] = ULI5287_BASE; hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; ioaddr = &host->ports[2]->ioaddr; ioaddr->cmd_addr = iomap[0] + 8; ioaddr->altstatus_addr = ioaddr->ctl_addr = (void __iomem *) ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4; ioaddr->bmdma_addr = iomap[4] + 16; hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4; ata_std_ports(ioaddr); ioaddr = &host->ports[3]->ioaddr; ioaddr->cmd_addr = iomap[2] + 8; ioaddr->altstatus_addr = ioaddr->ctl_addr = (void __iomem *) ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4; ioaddr->bmdma_addr = iomap[4] + 24; hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5; ata_std_ports(ioaddr); break; case uli_5289: hpriv->scr_cfg_addr[0] = ULI5287_BASE; hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; break; case uli_5281: hpriv->scr_cfg_addr[0] = ULI5281_BASE; hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS; break; default: BUG(); break; } pci_set_master(pdev); pci_intx(pdev, 1); return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED, &uli_sht); } static int __init uli_init(void) { return pci_register_driver(&uli_pci_driver); } static void __exit uli_exit(void) { pci_unregister_driver(&uli_pci_driver); } module_init(uli_init); module_exit(uli_exit);