diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcidio.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidio.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidio.c b/drivers/staging/comedi/drivers/cb_pcidio.c index 79477a5..b3c9c8f 100644 --- a/drivers/staging/comedi/drivers/cb_pcidio.c +++ b/drivers/staging/comedi/drivers/cb_pcidio.c @@ -56,10 +56,6 @@ struct pcidio_board { const char *name; /* name of the board */ int dev_id; int n_8255; /* number of 8255 chips on board */ - - /* indices of base address regions */ - int pcicontroler_badrindex; - int dioregs_badrindex; }; static const struct pcidio_board pcidio_boards[] = { @@ -67,22 +63,16 @@ static const struct pcidio_board pcidio_boards[] = { .name = "pci-dio24", .dev_id = 0x0028, .n_8255 = 1, - .pcicontroler_badrindex = 1, - .dioregs_badrindex = 2, }, { .name = "pci-dio24h", .dev_id = 0x0014, .n_8255 = 1, - .pcicontroler_badrindex = 1, - .dioregs_badrindex = 2, }, { .name = "pci-dio48h", .dev_id = 0x000b, .n_8255 = 2, - .pcicontroler_badrindex = 0, - .dioregs_badrindex = 1, }, }; @@ -244,10 +234,15 @@ found: ("cb_pcidio: failed to enable PCI device and request regions\n"); return -EIO; } - devpriv->dio_reg_base - = + /* + * Use PCI BAR 2 region if non-zero length, else use PCI BAR 1 region. + * PCI BAR 1 is only used for older PCI-DIO48H boards. At some point + * the PCI-DIO48H was redesigned to use the same PCI interface chip + * (and same PCI BAR region) as the other boards. + */ + devpriv->dio_reg_base = pci_resource_start(devpriv->pci_dev, - pcidio_boards[index].dioregs_badrindex); + (pci_resource_len(pcidev, 2) ? 2 : 1)); /* * Allocate the subdevice structures. alloc_subdevice() is a |