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Commit 7bd06f69 authored by Ian Abbott's avatar Ian Abbott Committed by Greg Kroah-Hartman
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staging: comedi: amplc_pc236: Remove forward function declarations 

Moved some functions and variables to avoid forward declarations.  Moved
PCI table closer to the struct pci_driver that refers to it.
Signed-off-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c25386f5
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Showing with 226 additions and 250 deletions
drivers/staging/comedi/drivers/amplc_pc236.c
View file @ 7bd06f69
......@@ -130,15 +130,6 @@ static const struct pc236_board pc236_boards[] = {
#endif
};
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
static DEFINE_PCI_DEVICE_TABLE(pc236_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI236) },
{0}
};
MODULE_DEVICE_TABLE(pci, pc236_pci_table);
#endif /* CONFIG_COMEDI_AMPLC_PC236_PCI */
/*
* Useful for shorthand access to the particular board structure
*/
......@@ -159,68 +150,6 @@ struct pc236_private {
#define devpriv ((struct pc236_private *)dev->private)
/*
* The struct comedi_driver structure tells the Comedi core module
* which functions to call to configure/deconfigure (attach/detach)
* the board, and also about the kernel module that contains
* the device code.
*/
static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it);
static void pc236_detach(struct comedi_device *dev);
static struct comedi_driver amplc_pc236_driver = {
.driver_name = PC236_DRIVER_NAME,
.module = THIS_MODULE,
.attach = pc236_attach,
.detach = pc236_detach,
.board_name = &pc236_boards[0].name,
.offset = sizeof(struct pc236_board),
.num_names = ARRAY_SIZE(pc236_boards),
};
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
static int __devinit amplc_pc236_pci_probe(struct pci_dev *dev,
const struct pci_device_id
*ent)
{
return comedi_pci_auto_config(dev, &amplc_pc236_driver);
}
static void __devexit amplc_pc236_pci_remove(struct pci_dev *dev)
{
comedi_pci_auto_unconfig(dev);
}
static struct pci_driver amplc_pc236_pci_driver = {
.name = PC236_DRIVER_NAME,
.id_table = pc236_pci_table,
.probe = &amplc_pc236_pci_probe,
.remove = __devexit_p(&amplc_pc236_pci_remove)
};
module_comedi_pci_driver(amplc_pc236_driver, amplc_pc236_pci_driver);
#else
module_comedi_driver(amplc_pc236_driver);
#endif
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
static int pc236_request_region(unsigned minor, unsigned long from,
unsigned long extent);
#endif
static void pc236_intr_disable(struct comedi_device *dev);
static void pc236_intr_enable(struct comedi_device *dev);
static int pc236_intr_check(struct comedi_device *dev);
static int pc236_intr_insn(struct comedi_device *dev,
struct comedi_subdevice *s, struct comedi_insn *insn,
unsigned int *data);
static int pc236_intr_cmdtest(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_cmd *cmd);
static int pc236_intr_cmd(struct comedi_device *dev,
struct comedi_subdevice *s);
static int pc236_intr_cancel(struct comedi_device *dev,
struct comedi_subdevice *s);
static irqreturn_t pc236_interrupt(int irq, void *d);
/*
* This function looks for a PCI device matching the requested board name,
* bus and slot.
......@@ -283,185 +212,6 @@ pc236_find_pci(struct comedi_device *dev, int bus, int slot,
}
#endif
/*
* Attach is called by the Comedi core to configure the driver
* for a particular board. If you specified a board_name array
* in the driver structure, dev->board_ptr contains that
* address.
*/
static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct comedi_subdevice *s;
unsigned long iobase = 0;
unsigned int irq = 0;
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
struct pci_dev *pci_dev = NULL;
int bus = 0, slot = 0;
#endif
int share_irq = 0;
int ret;
printk(KERN_DEBUG "comedi%d: %s: attach\n", dev->minor,
PC236_DRIVER_NAME);
/*
* Allocate the private structure area. alloc_private() is a
* convenient macro defined in comedidev.h.
*/
ret = alloc_private(dev, sizeof(struct pc236_private));
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
/* Process options. */
switch (thisboard->bustype) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
case isa_bustype:
iobase = it->options[0];
irq = it->options[1];
share_irq = 0;
break;
#endif
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
case pci_bustype:
bus = it->options[0];
slot = it->options[1];
share_irq = 1;
ret = pc236_find_pci(dev, bus, slot, &pci_dev);
if (ret < 0)
return ret;
devpriv->pci_dev = pci_dev;
break;
#endif
default:
printk(KERN_ERR
"comedi%d: %s: BUG! cannot determine board type!\n",
dev->minor, PC236_DRIVER_NAME);
return -EINVAL;
break;
}
/*
* Initialize dev->board_name.
*/
dev->board_name = thisboard->name;
/* Enable device and reserve I/O spaces. */
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
if (pci_dev) {
ret = comedi_pci_enable(pci_dev, PC236_DRIVER_NAME);
if (ret < 0) {
printk(KERN_ERR
"comedi%d: error! cannot enable PCI device and request regions!\n",
dev->minor);
return ret;
}
devpriv->lcr_iobase = pci_resource_start(pci_dev, 1);
iobase = pci_resource_start(pci_dev, 2);
irq = pci_dev->irq;
} else
#endif
{
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
ret = pc236_request_region(dev->minor, iobase, PC236_IO_SIZE);
if (ret < 0)
return ret;
#endif
}
dev->iobase = iobase;
/*
* Allocate the subdevice structures. alloc_subdevice() is a
* convenient macro defined in comedidev.h.
*/
ret = alloc_subdevices(dev, 2);
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
s = dev->subdevices + 0;
/* digital i/o subdevice (8255) */
ret = subdev_8255_init(dev, s, NULL, iobase);
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
s = dev->subdevices + 1;
dev->read_subdev = s;
s->type = COMEDI_SUBD_UNUSED;
pc236_intr_disable(dev);
if (irq) {
unsigned long flags = share_irq ? IRQF_SHARED : 0;
if (request_irq(irq, pc236_interrupt, flags,
PC236_DRIVER_NAME, dev) >= 0) {
dev->irq = irq;
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
s->n_chan = 1;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = pc236_intr_insn;
s->do_cmdtest = pc236_intr_cmdtest;
s->do_cmd = pc236_intr_cmd;
s->cancel = pc236_intr_cancel;
}
}
printk(KERN_INFO "comedi%d: %s ", dev->minor, dev->board_name);
switch (thisboard->bustype) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
case isa_bustype:
printk("(base %#lx) ", iobase);
break;
#endif
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
case pci_bustype:
printk("(pci %s) ", pci_name(pci_dev));
break;
#endif
default:
break;
}
if (irq)
printk("(irq %u%s) ", irq, (dev->irq ? "" : " UNAVAILABLE"));
else
printk("(no irq) ");
printk("attached\n");
return 1;
}
static void pc236_detach(struct comedi_device *dev)
{
if (devpriv)
pc236_intr_disable(dev);
if (dev->irq)
free_irq(dev->irq, dev);
if (dev->subdevices)
subdev_8255_cleanup(dev, dev->subdevices + 0);
if (devpriv) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
if (devpriv->pci_dev) {
if (dev->iobase)
comedi_pci_disable(devpriv->pci_dev);
pci_dev_put(devpriv->pci_dev);
} else
#endif
{
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
if (dev->iobase)
release_region(dev->iobase, PC236_IO_SIZE);
#endif
}
}
}
/*
* This function checks and requests an I/O region, reporting an error
* if there is a conflict.
......@@ -681,6 +431,232 @@ static irqreturn_t pc236_interrupt(int irq, void *d)
return IRQ_RETVAL(handled);
}
/*
* Attach is called by the Comedi core to configure the driver
* for a particular board. If you specified a board_name array
* in the driver structure, dev->board_ptr contains that
* address.
*/
static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct comedi_subdevice *s;
unsigned long iobase = 0;
unsigned int irq = 0;
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
struct pci_dev *pci_dev = NULL;
int bus = 0, slot = 0;
#endif
int share_irq = 0;
int ret;
printk(KERN_DEBUG "comedi%d: %s: attach\n", dev->minor,
PC236_DRIVER_NAME);
/*
* Allocate the private structure area. alloc_private() is a
* convenient macro defined in comedidev.h.
*/
ret = alloc_private(dev, sizeof(struct pc236_private));
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
/* Process options. */
switch (thisboard->bustype) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
case isa_bustype:
iobase = it->options[0];
irq = it->options[1];
share_irq = 0;
break;
#endif
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
case pci_bustype:
bus = it->options[0];
slot = it->options[1];
share_irq = 1;
ret = pc236_find_pci(dev, bus, slot, &pci_dev);
if (ret < 0)
return ret;
devpriv->pci_dev = pci_dev;
break;
#endif
default:
printk(KERN_ERR
"comedi%d: %s: BUG! cannot determine board type!\n",
dev->minor, PC236_DRIVER_NAME);
return -EINVAL;
break;
}
/*
* Initialize dev->board_name.
*/
dev->board_name = thisboard->name;
/* Enable device and reserve I/O spaces. */
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
if (pci_dev) {
ret = comedi_pci_enable(pci_dev, PC236_DRIVER_NAME);
if (ret < 0) {
printk(KERN_ERR
"comedi%d: error! cannot enable PCI device and request regions!\n",
dev->minor);
return ret;
}
devpriv->lcr_iobase = pci_resource_start(pci_dev, 1);
iobase = pci_resource_start(pci_dev, 2);
irq = pci_dev->irq;
} else
#endif
{
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
ret = pc236_request_region(dev->minor, iobase, PC236_IO_SIZE);
if (ret < 0)
return ret;
#endif
}
dev->iobase = iobase;
/*
* Allocate the subdevice structures. alloc_subdevice() is a
* convenient macro defined in comedidev.h.
*/
ret = alloc_subdevices(dev, 2);
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
s = dev->subdevices + 0;
/* digital i/o subdevice (8255) */
ret = subdev_8255_init(dev, s, NULL, iobase);
if (ret < 0) {
printk(KERN_ERR "comedi%d: error! out of memory!\n",
dev->minor);
return ret;
}
s = dev->subdevices + 1;
dev->read_subdev = s;
s->type = COMEDI_SUBD_UNUSED;
pc236_intr_disable(dev);
if (irq) {
unsigned long flags = share_irq ? IRQF_SHARED : 0;
if (request_irq(irq, pc236_interrupt, flags,
PC236_DRIVER_NAME, dev) >= 0) {
dev->irq = irq;
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
s->n_chan = 1;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = pc236_intr_insn;
s->do_cmdtest = pc236_intr_cmdtest;
s->do_cmd = pc236_intr_cmd;
s->cancel = pc236_intr_cancel;
}
}
printk(KERN_INFO "comedi%d: %s ", dev->minor, dev->board_name);
switch (thisboard->bustype) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
case isa_bustype:
printk("(base %#lx) ", iobase);
break;
#endif
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
case pci_bustype:
printk("(pci %s) ", pci_name(pci_dev));
break;
#endif
default:
break;
}
if (irq)
printk("(irq %u%s) ", irq, (dev->irq ? "" : " UNAVAILABLE"));
else
printk("(no irq) ");
printk("attached\n");
return 1;
}
static void pc236_detach(struct comedi_device *dev)
{
if (devpriv)
pc236_intr_disable(dev);
if (dev->irq)
free_irq(dev->irq, dev);
if (dev->subdevices)
subdev_8255_cleanup(dev, dev->subdevices + 0);
if (devpriv) {
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
if (devpriv->pci_dev) {
if (dev->iobase)
comedi_pci_disable(devpriv->pci_dev);
pci_dev_put(devpriv->pci_dev);
} else
#endif
{
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
if (dev->iobase)
release_region(dev->iobase, PC236_IO_SIZE);
#endif
}
}
}
/*
* The struct comedi_driver structure tells the Comedi core module
* which functions to call to configure/deconfigure (attach/detach)
* the board, and also about the kernel module that contains
* the device code.
*/
static struct comedi_driver amplc_pc236_driver = {
.driver_name = PC236_DRIVER_NAME,
.module = THIS_MODULE,
.attach = pc236_attach,
.detach = pc236_detach,
.board_name = &pc236_boards[0].name,
.offset = sizeof(struct pc236_board),
.num_names = ARRAY_SIZE(pc236_boards),
};
#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
static DEFINE_PCI_DEVICE_TABLE(pc236_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI236) },
{0}
};
MODULE_DEVICE_TABLE(pci, pc236_pci_table);
static int __devinit amplc_pc236_pci_probe(struct pci_dev *dev,
const struct pci_device_id *ent)
{
return comedi_pci_auto_config(dev, &amplc_pc236_driver);
}
static void __devexit amplc_pc236_pci_remove(struct pci_dev *dev)
{
comedi_pci_auto_unconfig(dev);
}
static struct pci_driver amplc_pc236_pci_driver = {
.name = PC236_DRIVER_NAME,
.id_table = pc236_pci_table,
.probe = &amplc_pc236_pci_probe,
.remove = __devexit_p(&amplc_pc236_pci_remove)
};
module_comedi_pci_driver(amplc_pc236_driver, amplc_pc236_pci_driver);
#else
module_comedi_driver(amplc_pc236_driver);
#endif
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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