diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/dt3000.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/dt3000.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c index 43d05ef9715..e71d880bdda 100644 --- a/drivers/staging/comedi/drivers/dt3000.c +++ b/drivers/staging/comedi/drivers/dt3000.c @@ -257,8 +257,6 @@ struct dt3k_private { unsigned int ai_rear; }; -#define devpriv ((struct dt3k_private *)dev->private) - static void dt3k_ai_empty_fifo(struct comedi_device *dev, struct comedi_subdevice *s); static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *arg, @@ -273,6 +271,7 @@ static void debug_intr_flags(unsigned int flags); static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int status = 0; @@ -297,6 +296,8 @@ static unsigned int dt3k_readsingle(struct comedi_device *dev, unsigned int subsys, unsigned int chan, unsigned int gain) { + struct dt3k_private *devpriv = dev->private; + writew(subsys, devpriv->io_addr + DPR_SubSys); writew(chan, devpriv->io_addr + DPR_Params(0)); @@ -310,6 +311,8 @@ static unsigned int dt3k_readsingle(struct comedi_device *dev, static void dt3k_writesingle(struct comedi_device *dev, unsigned int subsys, unsigned int chan, unsigned int data) { + struct dt3k_private *devpriv = dev->private; + writew(subsys, devpriv->io_addr + DPR_SubSys); writew(chan, devpriv->io_addr + DPR_Params(0)); @@ -326,6 +329,7 @@ static int debug_n_ints; static irqreturn_t dt3k_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct dt3k_private *devpriv = dev->private; struct comedi_subdevice *s; unsigned int status; @@ -377,6 +381,7 @@ static void debug_intr_flags(unsigned int flags) static void dt3k_ai_empty_fifo(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; int front; int rear; int count; @@ -550,6 +555,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int i; unsigned int chan, range, aref; @@ -618,6 +624,7 @@ static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int dt3k_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; int ret; writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); @@ -648,6 +655,7 @@ static int dt3k_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, static int dt3k_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int chan; @@ -664,6 +672,7 @@ static int dt3k_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int chan; @@ -676,6 +685,8 @@ static int dt3k_ao_insn_read(struct comedi_device *dev, static void dt3k_dio_config(struct comedi_device *dev, int bits) { + struct dt3k_private *devpriv = dev->private; + /* XXX */ writew(SUBS_DOUT, devpriv->io_addr + DPR_SubSys); @@ -739,6 +750,7 @@ static int dt3k_mem_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; unsigned int addr = CR_CHAN(insn->chanspec); int i; @@ -786,6 +798,7 @@ static struct pci_dev *dt3000_find_pci_dev(struct comedi_device *dev, static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt3k_private *devpriv; struct pci_dev *pcidev; struct comedi_subdevice *s; resource_size_t pci_base; @@ -793,9 +806,10 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev_dbg(dev->class_dev, "dt3000:\n"); - ret = alloc_private(dev, sizeof(struct dt3k_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; pcidev = dt3000_find_pci_dev(dev, it); if (!pcidev) @@ -885,6 +899,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void dt3000_detach(struct comedi_device *dev) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); + struct dt3k_private *devpriv = dev->private; if (dev->irq) free_irq(dev->irq, dev); |