| /* |
| * 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/config.h> |
| #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 "0.5" |
| |
| enum { |
| uli_5289 = 0, |
| uli_5287 = 1, |
| uli_5281 = 2, |
| |
| /* 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 */ |
| }; |
| |
| 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 struct pci_device_id uli_pci_tbl[] = { |
| { PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 }, |
| { PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 }, |
| { PCI_VENDOR_ID_AL, 0x5281, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 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, |
| .eh_strategy_handler = ata_scsi_error, |
| .can_queue = ATA_DEF_QUEUE, |
| .this_id = ATA_SHT_THIS_ID, |
| .sg_tablesize = LIBATA_MAX_PRD, |
| .max_sectors = ATA_MAX_SECTORS, |
| .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, |
| .bios_param = ata_std_bios_param, |
| .ordered_flush = 1, |
| }; |
| |
| 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, |
| |
| .phy_reset = sata_phy_reset, |
| |
| .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, |
| |
| .eng_timeout = ata_eng_timeout, |
| |
| .irq_handler = ata_interrupt, |
| .irq_clear = ata_bmdma_irq_clear, |
| |
| .scr_read = uli_scr_read, |
| .scr_write = uli_scr_write, |
| |
| .port_start = ata_port_start, |
| .port_stop = ata_port_stop, |
| .host_stop = ata_host_stop, |
| }; |
| |
| static struct ata_port_info uli_port_info = { |
| .sht = &uli_sht, |
| .host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET | |
| ATA_FLAG_NO_LEGACY, |
| .pio_mask = 0x1f, /* pio0-4 */ |
| .udma_mask = 0x7f, /* udma0-6 */ |
| .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) |
| { |
| return ap->ioaddr.scr_addr + (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_set->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_set->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; |
| struct ata_probe_ent *probe_ent; |
| struct ata_port_info *ppi; |
| int rc; |
| unsigned int board_idx = (unsigned int) ent->driver_data; |
| int pci_dev_busy = 0; |
| |
| if (!printed_version++) |
| dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); |
| |
| rc = pci_enable_device(pdev); |
| if (rc) |
| return rc; |
| |
| rc = pci_request_regions(pdev, DRV_NAME); |
| if (rc) { |
| pci_dev_busy = 1; |
| goto err_out; |
| } |
| |
| rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| if (rc) |
| goto err_out_regions; |
| rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| if (rc) |
| goto err_out_regions; |
| |
| ppi = &uli_port_info; |
| probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); |
| if (!probe_ent) { |
| rc = -ENOMEM; |
| goto err_out_regions; |
| } |
| |
| switch (board_idx) { |
| case uli_5287: |
| probe_ent->port[0].scr_addr = ULI5287_BASE; |
| probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS; |
| probe_ent->n_ports = 4; |
| |
| probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8; |
| probe_ent->port[2].altstatus_addr = |
| probe_ent->port[2].ctl_addr = |
| (pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4; |
| probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16; |
| probe_ent->port[2].scr_addr = ULI5287_BASE + ULI5287_OFFS*4; |
| |
| probe_ent->port[3].cmd_addr = pci_resource_start(pdev, 2) + 8; |
| probe_ent->port[3].altstatus_addr = |
| probe_ent->port[3].ctl_addr = |
| (pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4; |
| probe_ent->port[3].bmdma_addr = pci_resource_start(pdev, 4) + 24; |
| probe_ent->port[3].scr_addr = ULI5287_BASE + ULI5287_OFFS*5; |
| |
| ata_std_ports(&probe_ent->port[2]); |
| ata_std_ports(&probe_ent->port[3]); |
| break; |
| |
| case uli_5289: |
| probe_ent->port[0].scr_addr = ULI5287_BASE; |
| probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS; |
| break; |
| |
| case uli_5281: |
| probe_ent->port[0].scr_addr = ULI5281_BASE; |
| probe_ent->port[1].scr_addr = ULI5281_BASE + ULI5281_OFFS; |
| break; |
| |
| default: |
| BUG(); |
| break; |
| } |
| |
| pci_set_master(pdev); |
| pci_intx(pdev, 1); |
| |
| /* FIXME: check ata_device_add return value */ |
| ata_device_add(probe_ent); |
| kfree(probe_ent); |
| |
| return 0; |
| |
| err_out_regions: |
| pci_release_regions(pdev); |
| |
| err_out: |
| if (!pci_dev_busy) |
| pci_disable_device(pdev); |
| return rc; |
| |
| } |
| |
| static int __init uli_init(void) |
| { |
| return pci_module_init(&uli_pci_driver); |
| } |
| |
| static void __exit uli_exit(void) |
| { |
| pci_unregister_driver(&uli_pci_driver); |
| } |
| |
| |
| module_init(uli_init); |
| module_exit(uli_exit); |