diff options
Diffstat (limited to 'drivers/ata/sata_via.c')
| -rw-r--r-- | drivers/ata/sata_via.c | 217 |
1 files changed, 88 insertions, 129 deletions
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 598e6a26a48..1d855f55f5f 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -64,8 +64,6 @@ enum { PORT0 = (1 << 1), PORT1 = (1 << 0), ALL_PORTS = PORT0 | PORT1, - PATA_PORT = 2, /* PATA is port 2 */ - N_PORTS = 3, NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), @@ -78,11 +76,9 @@ static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); static void svia_noop_freeze(struct ata_port *ap); static void vt6420_error_handler(struct ata_port *ap); -static void vt6421_sata_error_handler(struct ata_port *ap); -static void vt6421_pata_error_handler(struct ata_port *ap); +static int vt6421_pata_cable_detect(struct ata_port *ap); static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); -static int vt6421_port_start(struct ata_port *ap); static const struct pci_device_id svia_pci_tbl[] = { { PCI_VDEVICE(VIA, 0x5337), vt6420 }, @@ -141,7 +137,6 @@ static const struct ata_port_operations vt6420_sata_ops = { .error_handler = vt6420_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, .irq_on = ata_irq_on, .irq_ack = ata_irq_ack, @@ -172,15 +167,15 @@ static const struct ata_port_operations vt6421_pata_ops = { .freeze = ata_bmdma_freeze, .thaw = ata_bmdma_thaw, - .error_handler = vt6421_pata_error_handler, + .error_handler = ata_bmdma_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, + .cable_detect = vt6421_pata_cable_detect, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, .irq_on = ata_irq_on, .irq_ack = ata_irq_ack, - .port_start = vt6421_port_start, + .port_start = ata_port_start, }; static const struct ata_port_operations vt6421_sata_ops = { @@ -203,10 +198,10 @@ static const struct ata_port_operations vt6421_sata_ops = { .freeze = ata_bmdma_freeze, .thaw = ata_bmdma_thaw, - .error_handler = vt6421_sata_error_handler, + .error_handler = ata_bmdma_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, + .cable_detect = ata_cable_sata, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, .irq_on = ata_irq_on, .irq_ack = ata_irq_ack, @@ -214,11 +209,10 @@ static const struct ata_port_operations vt6421_sata_ops = { .scr_read = svia_scr_read, .scr_write = svia_scr_write, - .port_start = vt6421_port_start, + .port_start = ata_port_start, }; -static struct ata_port_info vt6420_port_info = { - .sht = &svia_sht, +static const struct ata_port_info vt6420_port_info = { .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, .pio_mask = 0x1f, .mwdma_mask = 0x07, @@ -226,6 +220,22 @@ static struct ata_port_info vt6420_port_info = { .port_ops = &vt6420_sata_ops, }; +static struct ata_port_info vt6421_sport_info = { + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = 0x7f, + .port_ops = &vt6421_sata_ops, +}; + +static struct ata_port_info vt6421_pport_info = { + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY, + .pio_mask = 0x1f, + .mwdma_mask = 0, + .udma_mask = 0x7f, + .port_ops = &vt6421_pata_ops, +}; + MODULE_AUTHOR("Jeff Garzik"); MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); MODULE_LICENSE("GPL"); @@ -330,35 +340,15 @@ static void vt6420_error_handler(struct ata_port *ap) NULL, ata_std_postreset); } -static int vt6421_pata_prereset(struct ata_port *ap) +static int vt6421_pata_cable_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 tmp; pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); if (tmp & 0x10) - ap->cbl = ATA_CBL_PATA40; - else - ap->cbl = ATA_CBL_PATA80; - return 0; -} - -static void vt6421_pata_error_handler(struct ata_port *ap) -{ - return ata_bmdma_drive_eh(ap, vt6421_pata_prereset, ata_std_softreset, - NULL, ata_std_postreset); -} - -static int vt6421_sata_prereset(struct ata_port *ap) -{ - ap->cbl = ATA_CBL_SATA; - return 0; -} - -static void vt6421_sata_error_handler(struct ata_port *ap) -{ - return ata_bmdma_drive_eh(ap, vt6421_sata_prereset, ata_std_softreset, - NULL, ata_std_postreset); + return ATA_CBL_PATA40; + return ATA_CBL_PATA80; } static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) @@ -375,16 +365,6 @@ static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]); } -static int vt6421_port_start(struct ata_port *ap) -{ - if (ap->port_no == PATA_PORT) { - ap->ops = &vt6421_pata_ops; - ap->mwdma_mask = 0; - ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST; - } - return ata_port_start(ap); -} - static const unsigned int svia_bar_sizes[] = { 8, 4, 8, 4, 16, 256 }; @@ -403,79 +383,78 @@ static void __iomem * vt6421_scr_addr(void __iomem *addr, unsigned int port) return addr + (port * 64); } -static void vt6421_init_addrs(struct ata_probe_ent *probe_ent, - void __iomem * const *iomap, unsigned int port) +static void vt6421_init_addrs(struct ata_port *ap) { - void __iomem *reg_addr = iomap[port]; - void __iomem *bmdma_addr = iomap[4] + (port * 8); - - probe_ent->port[port].cmd_addr = reg_addr; - probe_ent->port[port].altstatus_addr = - probe_ent->port[port].ctl_addr = (void __iomem *) + void __iomem * const * iomap = ap->host->iomap; + void __iomem *reg_addr = iomap[ap->port_no]; + void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8); + struct ata_ioports *ioaddr = &ap->ioaddr; + + ioaddr->cmd_addr = reg_addr; + ioaddr->altstatus_addr = + ioaddr->ctl_addr = (void __iomem *) ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS); - probe_ent->port[port].bmdma_addr = bmdma_addr; - probe_ent->port[port].scr_addr = vt6421_scr_addr(iomap[5], port); + ioaddr->bmdma_addr = bmdma_addr; + ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no); - ata_std_ports(&probe_ent->port[port]); + ata_std_ports(ioaddr); } -static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev) +static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) { - struct ata_probe_ent *probe_ent; - struct ata_port_info *ppi[2]; - void __iomem *bar5; + const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL }; + struct ata_host *host; + int rc; - ppi[0] = ppi[1] = &vt6420_port_info; - probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); - if (!probe_ent) - return NULL; + rc = ata_pci_prepare_native_host(pdev, ppi, 2, &host); + if (rc) + return rc; + *r_host = host; - bar5 = pcim_iomap(pdev, 5, 0); - if (!bar5) { + rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); + if (rc) { dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n"); - return NULL; + return rc; } - probe_ent->port[0].scr_addr = svia_scr_addr(bar5, 0); - probe_ent->port[1].scr_addr = svia_scr_addr(bar5, 1); + host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0); + host->ports[1]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 1); - return probe_ent; + return 0; } -static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev) +static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) { - struct ata_probe_ent *probe_ent; - unsigned int i; + const struct ata_port_info *ppi[] = + { &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info }; + struct ata_host *host; + int i, rc; + + *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi)); + if (!host) { + dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); + return -ENOMEM; + } - probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL); - if (!probe_ent) - return NULL; - - memset(probe_ent, 0, sizeof(*probe_ent)); - probe_ent->dev = pci_dev_to_dev(pdev); - INIT_LIST_HEAD(&probe_ent->node); - - probe_ent->sht = &svia_sht; - probe_ent->port_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY; - probe_ent->port_ops = &vt6421_sata_ops; - probe_ent->n_ports = N_PORTS; - probe_ent->irq = pdev->irq; - probe_ent->irq_flags = IRQF_SHARED; - probe_ent->pio_mask = 0x1f; - probe_ent->mwdma_mask = 0x07; - probe_ent->udma_mask = 0x7f; - - for (i = 0; i < 6; i++) - if (!pcim_iomap(pdev, i, 0)) { - dev_printk(KERN_ERR, &pdev->dev, - "failed to iomap PCI BAR %d\n", i); - return NULL; - } + rc = pcim_iomap_regions(pdev, 0x1f, DRV_NAME); + if (rc) { + dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap " + "PCI BARs (errno=%d)\n", rc); + return rc; + } + host->iomap = pcim_iomap_table(pdev); - for (i = 0; i < N_PORTS; i++) - vt6421_init_addrs(probe_ent, pcim_iomap_table(pdev), i); + for (i = 0; i < host->n_ports; i++) + vt6421_init_addrs(host->ports[i]); - return probe_ent; + rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + return rc; + rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + return rc; + + return 0; } static void svia_configure(struct pci_dev *pdev) @@ -522,7 +501,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) static int printed_version; unsigned int i; int rc; - struct ata_probe_ent *probe_ent; + struct ata_host *host; int board_id = (int) ent->driver_data; const int *bar_sizes; u8 tmp8; @@ -534,12 +513,6 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) { - pcim_pin_device(pdev); - return rc; - } - if (board_id == vt6420) { pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8); if (tmp8 & SATA_2DEV) { @@ -565,32 +538,18 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } - rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - return rc; - rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - return rc; - if (board_id == vt6420) - probe_ent = vt6420_init_probe_ent(pdev); + rc = vt6420_prepare_host(pdev, &host); else - probe_ent = vt6421_init_probe_ent(pdev); - - if (!probe_ent) { - dev_printk(KERN_ERR, &pdev->dev, "out of memory\n"); - return -ENOMEM; - } + rc = vt6421_prepare_host(pdev, &host); + if (rc) + return rc; svia_configure(pdev); pci_set_master(pdev); - - if (!ata_device_add(probe_ent)) - return -ENODEV; - - devm_kfree(&pdev->dev, probe_ent); - return 0; + return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED, + &svia_sht); } static int __init svia_init(void) |