diff options
Diffstat (limited to 'drivers/ata/sata_qstor.c')
| -rw-r--r-- | drivers/ata/sata_qstor.c | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c new file mode 100644 index 00000000000..71bd6712b37 --- /dev/null +++ b/drivers/ata/sata_qstor.c @@ -0,0 +1,730 @@ +/* + * sata_qstor.c - Pacific Digital Corporation QStor SATA + * + * Maintained by: Mark Lord <mlord@pobox.com> + * + * Copyright 2005 Pacific Digital Corporation. + * (OSL/GPL code release authorized by Jalil Fadavi). + * + * + * 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.* + * + */ + +#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/sched.h> +#include <linux/device.h> +#include <scsi/scsi_host.h> +#include <asm/io.h> +#include <linux/libata.h> + +#define DRV_NAME "sata_qstor" +#define DRV_VERSION "0.06" + +enum { + QS_PORTS = 4, + QS_MAX_PRD = LIBATA_MAX_PRD, + QS_CPB_ORDER = 6, + QS_CPB_BYTES = (1 << QS_CPB_ORDER), + QS_PRD_BYTES = QS_MAX_PRD * 16, + QS_PKT_BYTES = QS_CPB_BYTES + QS_PRD_BYTES, + + /* global register offsets */ + QS_HCF_CNFG3 = 0x0003, /* host configuration offset */ + QS_HID_HPHY = 0x0004, /* host physical interface info */ + QS_HCT_CTRL = 0x00e4, /* global interrupt mask offset */ + QS_HST_SFF = 0x0100, /* host status fifo offset */ + QS_HVS_SERD3 = 0x0393, /* PHY enable offset */ + + /* global control bits */ + QS_HPHY_64BIT = (1 << 1), /* 64-bit bus detected */ + QS_CNFG3_GSRST = 0x01, /* global chip reset */ + QS_SERD3_PHY_ENA = 0xf0, /* PHY detection ENAble*/ + + /* per-channel register offsets */ + QS_CCF_CPBA = 0x0710, /* chan CPB base address */ + QS_CCF_CSEP = 0x0718, /* chan CPB separation factor */ + QS_CFC_HUFT = 0x0800, /* host upstream fifo threshold */ + QS_CFC_HDFT = 0x0804, /* host downstream fifo threshold */ + QS_CFC_DUFT = 0x0808, /* dev upstream fifo threshold */ + QS_CFC_DDFT = 0x080c, /* dev downstream fifo threshold */ + QS_CCT_CTR0 = 0x0900, /* chan control-0 offset */ + QS_CCT_CTR1 = 0x0901, /* chan control-1 offset */ + QS_CCT_CFF = 0x0a00, /* chan command fifo offset */ + + /* channel control bits */ + QS_CTR0_REG = (1 << 1), /* register mode (vs. pkt mode) */ + QS_CTR0_CLER = (1 << 2), /* clear channel errors */ + QS_CTR1_RDEV = (1 << 1), /* sata phy/comms reset */ + QS_CTR1_RCHN = (1 << 4), /* reset channel logic */ + QS_CCF_RUN_PKT = 0x107, /* RUN a new dma PKT */ + + /* pkt sub-field headers */ + QS_HCB_HDR = 0x01, /* Host Control Block header */ + QS_DCB_HDR = 0x02, /* Device Control Block header */ + + /* pkt HCB flag bits */ + QS_HF_DIRO = (1 << 0), /* data DIRection Out */ + QS_HF_DAT = (1 << 3), /* DATa pkt */ + QS_HF_IEN = (1 << 4), /* Interrupt ENable */ + QS_HF_VLD = (1 << 5), /* VaLiD pkt */ + + /* pkt DCB flag bits */ + QS_DF_PORD = (1 << 2), /* Pio OR Dma */ + QS_DF_ELBA = (1 << 3), /* Extended LBA (lba48) */ + + /* PCI device IDs */ + board_2068_idx = 0, /* QStor 4-port SATA/RAID */ +}; + +enum { + QS_DMA_BOUNDARY = ~0UL +}; + +typedef enum { qs_state_idle, qs_state_pkt, qs_state_mmio } qs_state_t; + +struct qs_port_priv { + u8 *pkt; + dma_addr_t pkt_dma; + qs_state_t state; +}; + +static u32 qs_scr_read (struct ata_port *ap, unsigned int sc_reg); +static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); +static int qs_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); +static irqreturn_t qs_intr (int irq, void *dev_instance, struct pt_regs *regs); +static int qs_port_start(struct ata_port *ap); +static void qs_host_stop(struct ata_host_set *host_set); +static void qs_port_stop(struct ata_port *ap); +static void qs_phy_reset(struct ata_port *ap); +static void qs_qc_prep(struct ata_queued_cmd *qc); +static unsigned int qs_qc_issue(struct ata_queued_cmd *qc); +static int qs_check_atapi_dma(struct ata_queued_cmd *qc); +static void qs_bmdma_stop(struct ata_queued_cmd *qc); +static u8 qs_bmdma_status(struct ata_port *ap); +static void qs_irq_clear(struct ata_port *ap); +static void qs_eng_timeout(struct ata_port *ap); + +static struct scsi_host_template qs_ata_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 = QS_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + //FIXME .use_clustering = ATA_SHT_USE_CLUSTERING, + .use_clustering = ENABLE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = QS_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 qs_ata_ops = { + .port_disable = ata_port_disable, + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .check_atapi_dma = qs_check_atapi_dma, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + .phy_reset = qs_phy_reset, + .qc_prep = qs_qc_prep, + .qc_issue = qs_qc_issue, + .data_xfer = ata_mmio_data_xfer, + .eng_timeout = qs_eng_timeout, + .irq_handler = qs_intr, + .irq_clear = qs_irq_clear, + .scr_read = qs_scr_read, + .scr_write = qs_scr_write, + .port_start = qs_port_start, + .port_stop = qs_port_stop, + .host_stop = qs_host_stop, + .bmdma_stop = qs_bmdma_stop, + .bmdma_status = qs_bmdma_status, +}; + +static const struct ata_port_info qs_port_info[] = { + /* board_2068_idx */ + { + .sht = &qs_ata_sht, + .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | + ATA_FLAG_SATA_RESET | + //FIXME ATA_FLAG_SRST | + ATA_FLAG_MMIO | ATA_FLAG_PIO_POLLING, + .pio_mask = 0x10, /* pio4 */ + .udma_mask = 0x7f, /* udma0-6 */ + .port_ops = &qs_ata_ops, + }, +}; + +static const struct pci_device_id qs_ata_pci_tbl[] = { + { PCI_VENDOR_ID_PDC, 0x2068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2068_idx }, + + { } /* terminate list */ +}; + +static struct pci_driver qs_ata_pci_driver = { + .name = DRV_NAME, + .id_table = qs_ata_pci_tbl, + .probe = qs_ata_init_one, + .remove = ata_pci_remove_one, +}; + +static int qs_check_atapi_dma(struct ata_queued_cmd *qc) +{ + return 1; /* ATAPI DMA not supported */ +} + +static void qs_bmdma_stop(struct ata_queued_cmd *qc) +{ + /* nothing */ +} + +static u8 qs_bmdma_status(struct ata_port *ap) +{ + return 0; +} + +static void qs_irq_clear(struct ata_port *ap) +{ + /* nothing */ +} + +static inline void qs_enter_reg_mode(struct ata_port *ap) +{ + u8 __iomem *chan = ap->host_set->mmio_base + (ap->port_no * 0x4000); + + writeb(QS_CTR0_REG, chan + QS_CCT_CTR0); + readb(chan + QS_CCT_CTR0); /* flush */ +} + +static inline void qs_reset_channel_logic(struct ata_port *ap) +{ + u8 __iomem *chan = ap->host_set->mmio_base + (ap->port_no * 0x4000); + + writeb(QS_CTR1_RCHN, chan + QS_CCT_CTR1); + readb(chan + QS_CCT_CTR0); /* flush */ + qs_enter_reg_mode(ap); +} + +static void qs_phy_reset(struct ata_port *ap) +{ + struct qs_port_priv *pp = ap->private_data; + + pp->state = qs_state_idle; + qs_reset_channel_logic(ap); + sata_phy_reset(ap); +} + +static void qs_eng_timeout(struct ata_port *ap) +{ + struct qs_port_priv *pp = ap->private_data; + + if (pp->state != qs_state_idle) /* healthy paranoia */ + pp->state = qs_state_mmio; + qs_reset_channel_logic(ap); + ata_eng_timeout(ap); +} + +static u32 qs_scr_read (struct ata_port *ap, unsigned int sc_reg) +{ + if (sc_reg > SCR_CONTROL) + return ~0U; + return readl((void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8))); +} + +static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) +{ + if (sc_reg > SCR_CONTROL) + return; + writel(val, (void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8))); +} + +static unsigned int qs_fill_sg(struct ata_queued_cmd *qc) +{ + struct scatterlist *sg; + struct ata_port *ap = qc->ap; + struct qs_port_priv *pp = ap->private_data; + unsigned int nelem; + u8 *prd = pp->pkt + QS_CPB_BYTES; + + WARN_ON(qc->__sg == NULL); + WARN_ON(qc->n_elem == 0 && qc->pad_len == 0); + + nelem = 0; + ata_for_each_sg(sg, qc) { + u64 addr; + u32 len; + + addr = sg_dma_address(sg); + *(__le64 *)prd = cpu_to_le64(addr); + prd += sizeof(u64); + + len = sg_dma_len(sg); + *(__le32 *)prd = cpu_to_le32(len); + prd += sizeof(u64); + + VPRINTK("PRD[%u] = (0x%llX, 0x%X)\n", nelem, + (unsigned long long)addr, len); + nelem++; + } + + return nelem; +} + +static void qs_qc_prep(struct ata_queued_cmd *qc) +{ + struct qs_port_priv *pp = qc->ap->private_data; + u8 dflags = QS_DF_PORD, *buf = pp->pkt; + u8 hflags = QS_HF_DAT | QS_HF_IEN | QS_HF_VLD; + u64 addr; + unsigned int nelem; + + VPRINTK("ENTER\n"); + + qs_enter_reg_mode(qc->ap); + if (qc->tf.protocol != ATA_PROT_DMA) { + ata_qc_prep(qc); + return; + } + + nelem = qs_fill_sg(qc); + + if ((qc->tf.flags & ATA_TFLAG_WRITE)) + hflags |= QS_HF_DIRO; + if ((qc->tf.flags & ATA_TFLAG_LBA48)) + dflags |= QS_DF_ELBA; + + /* host control block (HCB) */ + buf[ 0] = QS_HCB_HDR; + buf[ 1] = hflags; + *(__le32 *)(&buf[ 4]) = cpu_to_le32(qc->nsect * ATA_SECT_SIZE); + *(__le32 *)(&buf[ 8]) = cpu_to_le32(nelem); + addr = ((u64)pp->pkt_dma) + QS_CPB_BYTES; + *(__le64 *)(&buf[16]) = cpu_to_le64(addr); + + /* device control block (DCB) */ + buf[24] = QS_DCB_HDR; + buf[28] = dflags; + + /* frame information structure (FIS) */ + ata_tf_to_fis(&qc->tf, &buf[32], 0); +} + +static inline void qs_packet_start(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + u8 __iomem *chan = ap->host_set->mmio_base + (ap->port_no * 0x4000); + + VPRINTK("ENTER, ap %p\n", ap); + + writeb(QS_CTR0_CLER, chan + QS_CCT_CTR0); + wmb(); /* flush PRDs and pkt to memory */ + writel(QS_CCF_RUN_PKT, chan + QS_CCT_CFF); + readl(chan + QS_CCT_CFF); /* flush */ +} + +static unsigned int qs_qc_issue(struct ata_queued_cmd *qc) +{ + struct qs_port_priv *pp = qc->ap->private_data; + + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + + pp->state = qs_state_pkt; + qs_packet_start(qc); + return 0; + + case ATA_PROT_ATAPI_DMA: + BUG(); + break; + + default: + break; + } + + pp->state = qs_state_mmio; + return ata_qc_issue_prot(qc); +} + +static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set) +{ + unsigned int handled = 0; + u8 sFFE; + u8 __iomem *mmio_base = host_set->mmio_base; + + do { + u32 sff0 = readl(mmio_base + QS_HST_SFF); + u32 sff1 = readl(mmio_base + QS_HST_SFF + 4); + u8 sEVLD = (sff1 >> 30) & 0x01; /* valid flag */ + sFFE = sff1 >> 31; /* empty flag */ + + if (sEVLD) { + u8 sDST = sff0 >> 16; /* dev status */ + u8 sHST = sff1 & 0x3f; /* host status */ + unsigned int port_no = (sff1 >> 8) & 0x03; + struct ata_port *ap = host_set->ports[port_no]; + + DPRINTK("SFF=%08x%08x: sCHAN=%u sHST=%d sDST=%02x\n", + sff1, sff0, port_no, sHST, sDST); + handled = 1; + if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { + struct ata_queued_cmd *qc; + struct qs_port_priv *pp = ap->private_data; + if (!pp || pp->state != qs_state_pkt) + continue; + qc = ata_qc_from_tag(ap, ap->active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { + switch (sHST) { + case 0: /* successful CPB */ + case 3: /* device error */ + pp->state = qs_state_idle; + qs_enter_reg_mode(qc->ap); + qc->err_mask |= ac_err_mask(sDST); + ata_qc_complete(qc); + break; + default: + break; + } + } + } + } + } while (!sFFE); + return handled; +} + +static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set) +{ + unsigned int handled = 0, port_no; + + for (port_no = 0; port_no < host_set->n_ports; ++port_no) { + struct ata_port *ap; + ap = host_set->ports[port_no]; + if (ap && + !(ap->flags & ATA_FLAG_DISABLED)) { + struct ata_queued_cmd *qc; + struct qs_port_priv *pp = ap->private_data; + if (!pp || pp->state != qs_state_mmio) + continue; + qc = ata_qc_from_tag(ap, ap->active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { + + /* check main status, clearing INTRQ */ + u8 status = ata_check_status(ap); + if ((status & ATA_BUSY)) + continue; + DPRINTK("ata%u: protocol %d (dev_stat 0x%X)\n", + ap->id, qc->tf.protocol, status); + + /* complete taskfile transaction */ + pp->state = qs_state_idle; + qc->err_mask |= ac_err_mask(status); + ata_qc_complete(qc); + handled = 1; + } + } + } + return handled; +} + +static irqreturn_t qs_intr(int irq, void *dev_instance, struct pt_regs *regs) +{ + struct ata_host_set *host_set = dev_instance; + unsigned int handled = 0; + + VPRINTK("ENTER\n"); + + spin_lock(&host_set->lock); + handled = qs_intr_pkt(host_set) | qs_intr_mmio(host_set); + spin_unlock(&host_set->lock); + + VPRINTK("EXIT\n"); + + return IRQ_RETVAL(handled); +} + +static void qs_ata_setup_port(struct ata_ioports *port, unsigned long base) +{ + port->cmd_addr = + port->data_addr = base + 0x400; + port->error_addr = + port->feature_addr = base + 0x408; /* hob_feature = 0x409 */ + port->nsect_addr = base + 0x410; /* hob_nsect = 0x411 */ + port->lbal_addr = base + 0x418; /* hob_lbal = 0x419 */ + port->lbam_addr = base + 0x420; /* hob_lbam = 0x421 */ + port->lbah_addr = base + 0x428; /* hob_lbah = 0x429 */ + port->device_addr = base + 0x430; + port->status_addr = + port->command_addr = base + 0x438; + port->altstatus_addr = + port->ctl_addr = base + 0x440; + port->scr_addr = base + 0xc00; +} + +static int qs_port_start(struct ata_port *ap) +{ + struct device *dev = ap->host_set->dev; + struct qs_port_priv *pp; + void __iomem *mmio_base = ap->host_set->mmio_base; + void __iomem *chan = mmio_base + (ap->port_no * 0x4000); + u64 addr; + int rc; + + rc = ata_port_start(ap); + if (rc) + return rc; + qs_enter_reg_mode(ap); + pp = kzalloc(sizeof(*pp), GFP_KERNEL); + if (!pp) { + rc = -ENOMEM; + goto err_out; + } + pp->pkt = dma_alloc_coherent(dev, QS_PKT_BYTES, &pp->pkt_dma, + GFP_KERNEL); + if (!pp->pkt) { + rc = -ENOMEM; + goto err_out_kfree; + } + memset(pp->pkt, 0, QS_PKT_BYTES); + ap->private_data = pp; + + addr = (u64)pp->pkt_dma; + writel((u32) addr, chan + QS_CCF_CPBA); + writel((u32)(addr >> 32), chan + QS_CCF_CPBA + 4); + return 0; + +err_out_kfree: + kfree(pp); +err_out: + ata_port_stop(ap); + return rc; +} + +static void qs_port_stop(struct ata_port *ap) +{ + struct device *dev = ap->host_set->dev; + struct qs_port_priv *pp = ap->private_data; + + if (pp != NULL) { + ap->private_data = NULL; + if (pp->pkt != NULL) + dma_free_coherent(dev, QS_PKT_BYTES, pp->pkt, + pp->pkt_dma); + kfree(pp); + } + ata_port_stop(ap); +} + +static void qs_host_stop(struct ata_host_set *host_set) +{ + void __iomem *mmio_base = host_set->mmio_base; + struct pci_dev *pdev = to_pci_dev(host_set->dev); + + writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */ + writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */ + + pci_iounmap(pdev, mmio_base); +} + +static void qs_host_init(unsigned int chip_id, struct ata_probe_ent *pe) +{ + void __iomem *mmio_base = pe->mmio_base; + unsigned int port_no; + + writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */ + writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */ + + /* reset each channel in turn */ + for (port_no = 0; port_no < pe->n_ports; ++port_no) { + u8 __iomem *chan = mmio_base + (port_no * 0x4000); + writeb(QS_CTR1_RDEV|QS_CTR1_RCHN, chan + QS_CCT_CTR1); + writeb(QS_CTR0_REG, chan + QS_CCT_CTR0); + readb(chan + QS_CCT_CTR0); /* flush */ + } + writeb(QS_SERD3_PHY_ENA, mmio_base + QS_HVS_SERD3); /* enable phy */ + + for (port_no = 0; port_no < pe->n_ports; ++port_no) { + u8 __iomem *chan = mmio_base + (port_no * 0x4000); + /* set FIFO depths to same settings as Windows driver */ + writew(32, chan + QS_CFC_HUFT); + writew(32, chan + QS_CFC_HDFT); + writew(10, chan + QS_CFC_DUFT); + writew( 8, chan + QS_CFC_DDFT); + /* set CPB size in bytes, as a power of two */ + writeb(QS_CPB_ORDER, chan + QS_CCF_CSEP); + } + writeb(1, mmio_base + QS_HCT_CTRL); /* enable host interrupts */ +} + +/* + * The QStor understands 64-bit buses, and uses 64-bit fields + * for DMA pointers regardless of bus width. We just have to + * make sure our DMA masks are set appropriately for whatever + * bridge lies between us and the QStor, and then the DMA mapping + * code will ensure we only ever "see" appropriate buffer addresses. + * If we're 32-bit limited somewhere, then our 64-bit fields will + * just end up with zeros in the upper 32-bits, without any special + * logic required outside of this routine (below). + */ +static int qs_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base) +{ + u32 bus_info = readl(mmio_base + QS_HID_HPHY); + int rc, have_64bit_bus = (bus_info & QS_HPHY_64BIT); + + if (have_64bit_bus && + !pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { + rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); + if (rc) { + rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); + if (rc) { + dev_printk(KERN_ERR, &pdev->dev, + "64-bit DMA enable failed\n"); + return rc; + } + } + } else { + rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + if (rc) { + dev_printk(KERN_ERR, &pdev->dev, + "32-bit DMA enable failed\n"); + return rc; + } + rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); + if (rc) { + dev_printk(KERN_ERR, &pdev->dev, + "32-bit consistent DMA enable failed\n"); + return rc; + } + } + return 0; +} + +static int qs_ata_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static int printed_version; + struct ata_probe_ent *probe_ent = NULL; + void __iomem *mmio_base; + unsigned int board_idx = (unsigned int) ent->driver_data; + int rc, port_no; + + if (!printed_version++) + dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + + rc = pci_enable_device(pdev); + if (rc) + return rc; + + rc = pci_request_regions(pdev, DRV_NAME); + if (rc) + goto err_out; + + if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0) { + rc = -ENODEV; + goto err_out_regions; + } + + mmio_base = pci_iomap(pdev, 4, 0); + if (mmio_base == NULL) { + rc = -ENOMEM; + goto err_out_regions; + } + + rc = qs_set_dma_masks(pdev, mmio_base); + if (rc) + goto err_out_iounmap; + + probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL); + if (probe_ent == NULL) { + rc = -ENOMEM; + goto err_out_iounmap; + } + + memset(probe_ent, 0, sizeof(*probe_ent)); + probe_ent->dev = pci_dev_to_dev(pdev); + INIT_LIST_HEAD(&probe_ent->node); + + probe_ent->sht = qs_port_info[board_idx].sht; + probe_ent->host_flags = qs_port_info[board_idx].host_flags; + probe_ent->pio_mask = qs_port_info[board_idx].pio_mask; + probe_ent->mwdma_mask = qs_port_info[board_idx].mwdma_mask; + probe_ent->udma_mask = qs_port_info[board_idx].udma_mask; + probe_ent->port_ops = qs_port_info[board_idx].port_ops; + + probe_ent->irq = pdev->irq; + probe_ent->irq_flags = IRQF_SHARED; + probe_ent->mmio_base = mmio_base; + probe_ent->n_ports = QS_PORTS; + + for (port_no = 0; port_no < probe_ent->n_ports; ++port_no) { + unsigned long chan = (unsigned long)mmio_base + + (port_no * 0x4000); + qs_ata_setup_port(&probe_ent->port[port_no], chan); + } + + pci_set_master(pdev); + + /* initialize adapter */ + qs_host_init(board_idx, probe_ent); + + rc = ata_device_add(probe_ent); + kfree(probe_ent); + if (rc != QS_PORTS) + goto err_out_iounmap; + return 0; + +err_out_iounmap: + pci_iounmap(pdev, mmio_base); +err_out_regions: + pci_release_regions(pdev); +err_out: + pci_disable_device(pdev); + return rc; +} + +static int __init qs_ata_init(void) +{ + return pci_register_driver(&qs_ata_pci_driver); +} + +static void __exit qs_ata_exit(void) +{ + pci_unregister_driver(&qs_ata_pci_driver); +} + +MODULE_AUTHOR("Mark Lord"); +MODULE_DESCRIPTION("Pacific Digital Corporation QStor SATA low-level driver"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, qs_ata_pci_tbl); +MODULE_VERSION(DRV_VERSION); + +module_init(qs_ata_init); +module_exit(qs_ata_exit); |