From: H Hartley Sweeten Date: Mon, 23 Apr 2012 22:37:02 +0000 (-0700) Subject: staging: comedi: refactor adl_pci8164 driver to remove forward declarations X-Git-Tag: firefly_0821_release~3680^2~2823^2~229^2~87 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bb4806ae508fcabab9e4ad7578f3334e1596f807;p=firefly-linux-kernel-4.4.55.git staging: comedi: refactor adl_pci8164 driver to remove forward declarations Move the struct comedi_driver variable and the associated attach/detach routines to remove the need for the forward declarations. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Mori Hess Cc: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c index bd0c14b9f36f..6b32e45c0228 100644 --- a/drivers/staging/comedi/drivers/adl_pci8164.c +++ b/drivers/staging/comedi/drivers/adl_pci8164.c @@ -56,13 +56,6 @@ Configuration Options: #define PCI_DEVICE_ID_PCI8164 0x8164 -static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = { - { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) }, - {0} -}; - -MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table); - struct adl_pci8164_private { int data; struct pci_dev *pci_dev; @@ -70,159 +63,6 @@ struct adl_pci8164_private { #define devpriv ((struct adl_pci8164_private *)dev->private) -static int adl_pci8164_attach(struct comedi_device *dev, - struct comedi_devconfig *it); -static int adl_pci8164_detach(struct comedi_device *dev); -static struct comedi_driver driver_adl_pci8164 = { - .driver_name = "adl_pci8164", - .module = THIS_MODULE, - .attach = adl_pci8164_attach, - .detach = adl_pci8164_detach, -}; - -static int adl_pci8164_insn_read_msts(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_read_ssts(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_read_buf0(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_read_buf1(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_write_cmd(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_write_otp(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_write_buf0(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_insn_write_buf1(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); - -static int adl_pci8164_attach(struct comedi_device *dev, - struct comedi_devconfig *it) -{ - struct pci_dev *pcidev = NULL; - struct comedi_subdevice *s; - int bus, slot; - - printk(KERN_INFO "comedi: attempt to attach...\n"); - printk(KERN_INFO "comedi%d: adl_pci8164\n", dev->minor); - - dev->board_name = "pci8164"; - bus = it->options[0]; - slot = it->options[1]; - - if (alloc_private(dev, sizeof(struct adl_pci8164_private)) < 0) - return -ENOMEM; - - if (alloc_subdevices(dev, 4) < 0) - return -ENOMEM; - - for_each_pci_dev(pcidev) { - if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && - pcidev->device == PCI_DEVICE_ID_PCI8164) { - if (bus || slot) { - /* requested particular bus/slot */ - if (pcidev->bus->number != bus - || PCI_SLOT(pcidev->devfn) != slot) - continue; - } - devpriv->pci_dev = pcidev; - if (comedi_pci_enable(pcidev, "adl_pci8164") < 0) { - printk(KERN_ERR "comedi%d: Failed to enable " - "PCI device and request regions\n", dev->minor); - return -EIO; - } - dev->iobase = pci_resource_start(pcidev, 2); - printk(KERN_DEBUG "comedi: base addr %4lx\n", - dev->iobase); - - s = dev->subdevices + 0; - s->type = COMEDI_SUBD_PROC; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 0xffff; - s->len_chanlist = 4; - /* s->range_table = &range_axis; */ - s->insn_read = adl_pci8164_insn_read_msts; - s->insn_write = adl_pci8164_insn_write_cmd; - - s = dev->subdevices + 1; - s->type = COMEDI_SUBD_PROC; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 0xffff; - s->len_chanlist = 4; - /* s->range_table = &range_axis; */ - s->insn_read = adl_pci8164_insn_read_ssts; - s->insn_write = adl_pci8164_insn_write_otp; - - s = dev->subdevices + 2; - s->type = COMEDI_SUBD_PROC; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 0xffff; - s->len_chanlist = 4; - /* s->range_table = &range_axis; */ - s->insn_read = adl_pci8164_insn_read_buf0; - s->insn_write = adl_pci8164_insn_write_buf0; - - s = dev->subdevices + 3; - s->type = COMEDI_SUBD_PROC; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 0xffff; - s->len_chanlist = 4; - /* s->range_table = &range_axis; */ - s->insn_read = adl_pci8164_insn_read_buf1; - s->insn_write = adl_pci8164_insn_write_buf1; - - printk(KERN_INFO "comedi: attached\n"); - - return 1; - } - } - - printk(KERN_ERR "comedi%d: no supported board found!" - "(req. bus/slot : %d/%d)\n", dev->minor, bus, slot); - return -EIO; -} - -static int adl_pci8164_detach(struct comedi_device *dev) -{ - printk(KERN_INFO "comedi%d: pci8164: remove\n", dev->minor); - - if (devpriv && devpriv->pci_dev) { - if (dev->iobase) - comedi_pci_disable(devpriv->pci_dev); - pci_dev_put(devpriv->pci_dev); - } - - return 0; -} - /* all the read commands are the same except for the addition a constant * const to the data for inw() @@ -384,6 +224,116 @@ static int adl_pci8164_insn_write_buf1(struct comedi_device *dev, return 2; } +static int adl_pci8164_attach(struct comedi_device *dev, + struct comedi_devconfig *it) +{ + struct pci_dev *pcidev = NULL; + struct comedi_subdevice *s; + int bus, slot; + + printk(KERN_INFO "comedi: attempt to attach...\n"); + printk(KERN_INFO "comedi%d: adl_pci8164\n", dev->minor); + + dev->board_name = "pci8164"; + bus = it->options[0]; + slot = it->options[1]; + + if (alloc_private(dev, sizeof(struct adl_pci8164_private)) < 0) + return -ENOMEM; + + if (alloc_subdevices(dev, 4) < 0) + return -ENOMEM; + + for_each_pci_dev(pcidev) { + if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && + pcidev->device == PCI_DEVICE_ID_PCI8164) { + if (bus || slot) { + /* requested particular bus/slot */ + if (pcidev->bus->number != bus + || PCI_SLOT(pcidev->devfn) != slot) + continue; + } + devpriv->pci_dev = pcidev; + if (comedi_pci_enable(pcidev, "adl_pci8164") < 0) { + printk(KERN_ERR "comedi%d: Failed to enable " + "PCI device and request regions\n", dev->minor); + return -EIO; + } + dev->iobase = pci_resource_start(pcidev, 2); + printk(KERN_DEBUG "comedi: base addr %4lx\n", + dev->iobase); + + s = dev->subdevices + 0; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + /* s->range_table = &range_axis; */ + s->insn_read = adl_pci8164_insn_read_msts; + s->insn_write = adl_pci8164_insn_write_cmd; + + s = dev->subdevices + 1; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + /* s->range_table = &range_axis; */ + s->insn_read = adl_pci8164_insn_read_ssts; + s->insn_write = adl_pci8164_insn_write_otp; + + s = dev->subdevices + 2; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + /* s->range_table = &range_axis; */ + s->insn_read = adl_pci8164_insn_read_buf0; + s->insn_write = adl_pci8164_insn_write_buf0; + + s = dev->subdevices + 3; + s->type = COMEDI_SUBD_PROC; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 0xffff; + s->len_chanlist = 4; + /* s->range_table = &range_axis; */ + s->insn_read = adl_pci8164_insn_read_buf1; + s->insn_write = adl_pci8164_insn_write_buf1; + + printk(KERN_INFO "comedi: attached\n"); + + return 1; + } + } + + printk(KERN_ERR "comedi%d: no supported board found!" + "(req. bus/slot : %d/%d)\n", dev->minor, bus, slot); + return -EIO; +} + +static int adl_pci8164_detach(struct comedi_device *dev) +{ + printk(KERN_INFO "comedi%d: pci8164: remove\n", dev->minor); + + if (devpriv && devpriv->pci_dev) { + if (dev->iobase) + comedi_pci_disable(devpriv->pci_dev); + pci_dev_put(devpriv->pci_dev); + } + + return 0; +} + +static struct comedi_driver driver_adl_pci8164 = { + .driver_name = "adl_pci8164", + .module = THIS_MODULE, + .attach = adl_pci8164_attach, + .detach = adl_pci8164_detach, +}; + static int __devinit driver_adl_pci8164_pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) @@ -396,10 +346,16 @@ static void __devexit driver_adl_pci8164_pci_remove(struct pci_dev *dev) comedi_pci_auto_unconfig(dev); } +static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = { + { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) }, + {0} +}; +MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table); + static struct pci_driver driver_adl_pci8164_pci_driver = { - .id_table = adl_pci8164_pci_table, - .probe = &driver_adl_pci8164_pci_probe, - .remove = __devexit_p(&driver_adl_pci8164_pci_remove) + .id_table = adl_pci8164_pci_table, + .probe = driver_adl_pci8164_pci_probe, + .remove = __devexit_p(driver_adl_pci8164_pci_remove), }; static int __init driver_adl_pci8164_init_module(void) @@ -414,14 +370,13 @@ static int __init driver_adl_pci8164_init_module(void) (char *)driver_adl_pci8164.driver_name; return pci_register_driver(&driver_adl_pci8164_pci_driver); } +module_init(driver_adl_pci8164_init_module); static void __exit driver_adl_pci8164_cleanup_module(void) { pci_unregister_driver(&driver_adl_pci8164_pci_driver); comedi_driver_unregister(&driver_adl_pci8164); } - -module_init(driver_adl_pci8164_init_module); module_exit(driver_adl_pci8164_cleanup_module); MODULE_AUTHOR("Comedi http://www.comedi.org");