diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_labpc.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_labpc.c | 57 |
1 files changed, 45 insertions, 12 deletions
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 897359d7..0517a23 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -78,6 +78,7 @@ NI manuals: #include <linux/interrupt.h> #include <linux/slab.h> +#include <linux/io.h> #include "../comedidev.h" #include <linux/delay.h> @@ -212,8 +213,10 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it); static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static irqreturn_t labpc_interrupt(int irq, void *d); static int labpc_drain_fifo(struct comedi_device *dev); +#ifdef CONFIG_ISA_DMA_API static void labpc_drain_dma(struct comedi_device *dev); static void handle_isa_dma(struct comedi_device *dev); +#endif static void labpc_drain_dregs(struct comedi_device *dev); static int labpc_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd); @@ -237,9 +240,11 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data); -static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd); static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd); -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_ISA_DMA_API +static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd); +#endif +#ifdef CONFIG_COMEDI_PCI_DRIVERS static int labpc_find_device(struct comedi_device *dev, int bus, int slot); #endif static int labpc_dio_mem_callback(int dir, int port, int data, @@ -456,7 +461,7 @@ static const struct labpc_board_struct labpc_boards[] = { .ai_scan_up = 0, .memory_mapped_io = 0, }, -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS { .name = "pci-1200", .device_id = 0x161, @@ -500,14 +505,14 @@ static struct comedi_driver driver_labpc = { .offset = sizeof(struct labpc_board_struct), }; -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS static DEFINE_PCI_DEVICE_TABLE(labpc_pci_table) = { {PCI_DEVICE(PCI_VENDOR_ID_NI, 0x161)}, {0} }; MODULE_DEVICE_TABLE(pci, labpc_pci_table); -#endif /* CONFIG_COMEDI_PCI */ +#endif /* CONFIG_COMEDI_PCI_DRIVERS */ static inline int labpc_counter_load(struct comedi_device *dev, unsigned long base_address, @@ -526,7 +531,10 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, { struct comedi_subdevice *s; int i; - unsigned long dma_flags, isr_flags; + unsigned long isr_flags; +#ifdef CONFIG_ISA_DMA_API + unsigned long dma_flags; +#endif short lsb, msb; printk(KERN_ERR "comedi%d: ni_labpc: %s, io 0x%lx", dev->minor, @@ -586,6 +594,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, } dev->irq = irq; +#ifdef CONFIG_ISA_DMA_API /* grab dma channel */ if (dma_chan > 3) { printk(KERN_ERR " invalid dma channel %u\n", dma_chan); @@ -609,6 +618,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, set_dma_mode(devpriv->dma_chan, DMA_MODE_READ); release_dma_lock(dma_flags); } +#endif dev->board_name = thisboard->name; @@ -712,7 +722,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) unsigned long iobase = 0; unsigned int irq = 0; unsigned int dma_chan = 0; -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS int retval; #endif @@ -723,12 +733,18 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* get base address, irq etc. based on bustype */ switch (thisboard->bustype) { case isa_bustype: +#ifdef CONFIG_ISA_DMA_API iobase = it->options[0]; irq = it->options[1]; dma_chan = it->options[2]; +#else + printk(KERN_ERR " this driver has not been built with ISA DMA " + "support.\n"); + return -EINVAL; +#endif break; case pci_bustype: -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS retval = labpc_find_device(dev, it->options[0], it->options[1]); if (retval < 0) return retval; @@ -758,7 +774,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) } /* adapted from ni_pcimio for finding mite based boards (pc-1200) */ -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS static int labpc_find_device(struct comedi_device *dev, int bus, int slot) { struct mite_struct *mite; @@ -796,15 +812,17 @@ int labpc_common_detach(struct comedi_device *dev) if (dev->subdevices) subdev_8255_cleanup(dev, dev->subdevices + 2); +#ifdef CONFIG_ISA_DMA_API /* only free stuff if it has been allocated by _attach */ kfree(devpriv->dma_buffer); if (devpriv->dma_chan) free_dma(devpriv->dma_chan); +#endif if (dev->irq) free_irq(dev->irq, dev); if (thisboard->bustype == isa_bustype && dev->iobase) release_region(dev->iobase, LABPC_SIZE); -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS if (devpriv->mite) mite_unsetup(devpriv->mite); #endif @@ -1134,7 +1152,9 @@ static int labpc_ai_cmdtest(struct comedi_device *dev, static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { int channel, range, aref; +#ifdef CONFIG_ISA_DMA_API unsigned long irq_flags; +#endif int ret; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; @@ -1181,6 +1201,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->write_byte(INIT_A1_BITS, dev->iobase + COUNTER_A_CONTROL_REG); +#ifdef CONFIG_ISA_DMA_API /* figure out what method we will use to transfer data */ if (devpriv->dma_chan && /* need a dma channel allocated */ /* @@ -1192,7 +1213,9 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) thisboard->bustype == isa_bustype) { xfer = isa_dma_transfer; /* pc-plus has no fifo-half full interrupt */ - } else if (thisboard->register_layout == labpc_1200_layout && + } else +#endif + if (thisboard->register_layout == labpc_1200_layout && /* wake-end-of-scan should interrupt on fifo not empty */ (cmd->flags & TRIG_WAKE_EOS) == 0 && /* make sure we are taking more than just a few points */ @@ -1303,6 +1326,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) labpc_clear_adc_fifo(dev); +#ifdef CONFIG_ISA_DMA_API /* set up dma transfer */ if (xfer == isa_dma_transfer) { irq_flags = claim_dma_lock(); @@ -1326,6 +1350,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->command3_bits |= DMA_EN_BIT | DMATC_INTR_EN_BIT; } else devpriv->command3_bits &= ~DMA_EN_BIT & ~DMATC_INTR_EN_BIT; +#endif /* enable error interrupts */ devpriv->command3_bits |= ERR_INTR_EN_BIT; @@ -1428,6 +1453,7 @@ static irqreturn_t labpc_interrupt(int irq, void *d) return IRQ_HANDLED; } +#ifdef CONFIG_ISA_DMA_API if (devpriv->current_transfer == isa_dma_transfer) { /* * if a dma terminal count of external stop trigger @@ -1439,6 +1465,7 @@ static irqreturn_t labpc_interrupt(int irq, void *d) handle_isa_dma(dev); } } else +#endif labpc_drain_fifo(dev); if (devpriv->status1_bits & TIMER_BIT) { @@ -1511,6 +1538,7 @@ static int labpc_drain_fifo(struct comedi_device *dev) return 0; } +#ifdef CONFIG_ISA_DMA_API static void labpc_drain_dma(struct comedi_device *dev) { struct comedi_subdevice *s = dev->read_subdev; @@ -1573,13 +1601,16 @@ static void handle_isa_dma(struct comedi_device *dev) /* clear dma tc interrupt */ devpriv->write_byte(0x1, dev->iobase + DMATC_CLEAR_REG); } +#endif /* makes sure all data acquired by board is transferred to comedi (used * when acquisition is terminated by stop_src == TRIG_EXT). */ static void labpc_drain_dregs(struct comedi_device *dev) { +#ifdef CONFIG_ISA_DMA_API if (devpriv->current_transfer == isa_dma_transfer) labpc_drain_dma(dev); +#endif labpc_drain_fifo(dev); } @@ -1771,6 +1802,7 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev, return 1; } +#ifdef CONFIG_ISA_DMA_API /* utility function that suggests a dma transfer size in bytes */ static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd) { @@ -1794,6 +1826,7 @@ static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd) return size; } +#endif /* figures out what counter values to use based on command */ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd) @@ -2107,7 +2140,7 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel, devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG); } -#ifdef CONFIG_COMEDI_PCI +#ifdef CONFIG_COMEDI_PCI_DRIVERS static int __devinit driver_labpc_pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) { |