273 lines
7.1 KiB
C
273 lines
7.1 KiB
C
/*
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* sata_uli.c - ULi Electronics SATA
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* libata documentation is available via 'make {ps|pdf}docs',
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* as Documentation/DocBook/libata.*
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*
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* Hardware documentation available under NDA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/device.h>
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#include <scsi/scsi_host.h>
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#include <linux/libata.h>
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#define DRV_NAME "sata_uli"
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#define DRV_VERSION "1.1"
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enum {
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uli_5289 = 0,
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uli_5287 = 1,
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uli_5281 = 2,
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uli_max_ports = 4,
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/* PCI configuration registers */
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ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
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ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
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ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
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ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
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};
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struct uli_priv {
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unsigned int scr_cfg_addr[uli_max_ports];
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};
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static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
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static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
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static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
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static const struct pci_device_id uli_pci_tbl[] = {
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{ PCI_VDEVICE(AL, 0x5289), uli_5289 },
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{ PCI_VDEVICE(AL, 0x5287), uli_5287 },
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{ PCI_VDEVICE(AL, 0x5281), uli_5281 },
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{ } /* terminate list */
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};
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static struct pci_driver uli_pci_driver = {
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.name = DRV_NAME,
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.id_table = uli_pci_tbl,
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.probe = uli_init_one,
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.remove = ata_pci_remove_one,
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};
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static struct scsi_host_template uli_sht = {
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.module = THIS_MODULE,
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.name = DRV_NAME,
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.ioctl = ata_scsi_ioctl,
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.queuecommand = ata_scsi_queuecmd,
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.can_queue = ATA_DEF_QUEUE,
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.this_id = ATA_SHT_THIS_ID,
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.sg_tablesize = LIBATA_MAX_PRD,
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.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
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.emulated = ATA_SHT_EMULATED,
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.use_clustering = ATA_SHT_USE_CLUSTERING,
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.proc_name = DRV_NAME,
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.dma_boundary = ATA_DMA_BOUNDARY,
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.slave_configure = ata_scsi_slave_config,
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.slave_destroy = ata_scsi_slave_destroy,
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.bios_param = ata_std_bios_param,
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};
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static const struct ata_port_operations uli_ops = {
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.port_disable = ata_port_disable,
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.tf_load = ata_tf_load,
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.tf_read = ata_tf_read,
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.check_status = ata_check_status,
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.exec_command = ata_exec_command,
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.dev_select = ata_std_dev_select,
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.bmdma_setup = ata_bmdma_setup,
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.bmdma_start = ata_bmdma_start,
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.bmdma_stop = ata_bmdma_stop,
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.bmdma_status = ata_bmdma_status,
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.qc_prep = ata_qc_prep,
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.qc_issue = ata_qc_issue_prot,
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.data_xfer = ata_data_xfer,
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.freeze = ata_bmdma_freeze,
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.thaw = ata_bmdma_thaw,
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.error_handler = ata_bmdma_error_handler,
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.post_internal_cmd = ata_bmdma_post_internal_cmd,
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.irq_clear = ata_bmdma_irq_clear,
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.irq_on = ata_irq_on,
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.irq_ack = ata_irq_ack,
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.scr_read = uli_scr_read,
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.scr_write = uli_scr_write,
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.port_start = ata_port_start,
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};
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static struct ata_port_info uli_port_info = {
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.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
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ATA_FLAG_IGN_SIMPLEX,
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.pio_mask = 0x1f, /* pio0-4 */
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.udma_mask = 0x7f, /* udma0-6 */
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.port_ops = &uli_ops,
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};
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MODULE_AUTHOR("Peer Chen");
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MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
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MODULE_LICENSE("GPL");
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MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
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MODULE_VERSION(DRV_VERSION);
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static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
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{
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struct uli_priv *hpriv = ap->host->private_data;
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return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
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}
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static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
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{
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struct pci_dev *pdev = to_pci_dev(ap->host->dev);
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unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
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u32 val;
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pci_read_config_dword(pdev, cfg_addr, &val);
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return val;
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}
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static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
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{
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struct pci_dev *pdev = to_pci_dev(ap->host->dev);
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unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
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pci_write_config_dword(pdev, cfg_addr, val);
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}
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static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
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{
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if (sc_reg > SCR_CONTROL)
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return 0xffffffffU;
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return uli_scr_cfg_read(ap, sc_reg);
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}
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static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
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{
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if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
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return;
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uli_scr_cfg_write(ap, sc_reg, val);
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}
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static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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static int printed_version;
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const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
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unsigned int board_idx = (unsigned int) ent->driver_data;
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struct ata_host *host;
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struct uli_priv *hpriv;
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void __iomem * const *iomap;
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struct ata_ioports *ioaddr;
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int n_ports, rc;
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if (!printed_version++)
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dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
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rc = pcim_enable_device(pdev);
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if (rc)
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return rc;
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n_ports = 2;
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if (board_idx == uli_5287)
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n_ports = 4;
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rc = ata_pci_prepare_native_host(pdev, ppi, n_ports, &host);
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if (rc)
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return rc;
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hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
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if (!hpriv)
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return -ENOMEM;
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host->private_data = hpriv;
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iomap = host->iomap;
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switch (board_idx) {
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case uli_5287:
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hpriv->scr_cfg_addr[0] = ULI5287_BASE;
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hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
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ioaddr = &host->ports[2]->ioaddr;
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ioaddr->cmd_addr = iomap[0] + 8;
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ioaddr->altstatus_addr =
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ioaddr->ctl_addr = (void __iomem *)
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((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
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ioaddr->bmdma_addr = iomap[4] + 16;
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hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
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ata_std_ports(ioaddr);
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ioaddr = &host->ports[3]->ioaddr;
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ioaddr->cmd_addr = iomap[2] + 8;
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ioaddr->altstatus_addr =
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ioaddr->ctl_addr = (void __iomem *)
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((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
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ioaddr->bmdma_addr = iomap[4] + 24;
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hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
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ata_std_ports(ioaddr);
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break;
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case uli_5289:
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hpriv->scr_cfg_addr[0] = ULI5287_BASE;
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hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
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break;
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case uli_5281:
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hpriv->scr_cfg_addr[0] = ULI5281_BASE;
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hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
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break;
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default:
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BUG();
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break;
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}
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pci_set_master(pdev);
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pci_intx(pdev, 1);
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return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
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&uli_sht);
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}
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static int __init uli_init(void)
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{
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return pci_register_driver(&uli_pci_driver);
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}
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static void __exit uli_exit(void)
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{
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pci_unregister_driver(&uli_pci_driver);
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}
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module_init(uli_init);
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module_exit(uli_exit);
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