From e74f209ca99568865dfca5a456a114734cb7ef8c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 26 Jun 2012 17:46:44 -0700 Subject: [PATCH] staging: comedi: cb_pcidas: remove forward declarations 1 Move the attach/detach functions to remove the need for some of the forward declarations. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidas.c | 494 +++++++++------------ 1 file changed, 219 insertions(+), 275 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index e2bf22270561..5460410e6c7c 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -447,37 +447,9 @@ struct cb_pcidas_private { */ #define devpriv ((struct cb_pcidas_private *)dev->private) -static int cb_pcidas_ai_rinsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ao_readback_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ai_cmd(struct comedi_device *dev, - struct comedi_subdevice *s); -static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd); -static int cb_pcidas_ao_cmd(struct comedi_device *dev, - struct comedi_subdevice *s); static int cb_pcidas_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *subdev, unsigned int trig_num); -static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd); -static irqreturn_t cb_pcidas_interrupt(int irq, void *d); static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status); static int cb_pcidas_cancel(struct comedi_device *dev, struct comedi_subdevice *s); @@ -485,30 +457,6 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, int round_flags); -static int eeprom_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int caldac_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int caldac_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int trimpot_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int cb_pcidas_trimpot_write(struct comedi_device *dev, - unsigned int channel, unsigned int value); -static int trimpot_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int dac08_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, struct comedi_insn *insn, - unsigned int *data); -static int dac08_write(struct comedi_device *dev, unsigned int value); -static int dac08_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); static int caldac_8800_write(struct comedi_device *dev, unsigned int address, uint8_t value); static int trimpot_7376_write(struct comedi_device *dev, uint8_t value); @@ -522,229 +470,6 @@ static inline unsigned int cal_enable_bits(struct comedi_device *dev) return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source); } -/* - * Attach is called by the Comedi core to configure the driver - * for a particular board. - */ -static int cb_pcidas_attach(struct comedi_device *dev, - struct comedi_devconfig *it) -{ - struct comedi_subdevice *s; - struct pci_dev *pcidev = NULL; - int index; - int i; - int ret; - -/* - * Allocate the private structure area. - */ - if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0) - return -ENOMEM; - -/* - * Probe the device to determine what device in the series it is. - */ - - for_each_pci_dev(pcidev) { - /* is it not a computer boards card? */ - if (pcidev->vendor != PCI_VENDOR_ID_CB) - continue; - /* loop through cards supported by this driver */ - for (index = 0; index < ARRAY_SIZE(cb_pcidas_boards); index++) { - if (cb_pcidas_boards[index].device_id != pcidev->device) - continue; - /* was a particular bus/slot requested? */ - if (it->options[0] || it->options[1]) { - /* are we on the wrong bus/slot? */ - if (pcidev->bus->number != it->options[0] || - PCI_SLOT(pcidev->devfn) != it->options[1]) { - continue; - } - } - devpriv->pci_dev = pcidev; - dev->board_ptr = cb_pcidas_boards + index; - goto found; - } - } - - dev_err(dev->class_dev, - "No supported ComputerBoards/MeasurementComputing card found on requested position\n"); - return -EIO; - -found: - - dev_dbg(dev->class_dev, "Found %s on bus %i, slot %i\n", - cb_pcidas_boards[index].name, pcidev->bus->number, - PCI_SLOT(pcidev->devfn)); - - /* - * Enable PCI device and reserve I/O ports. - */ - if (comedi_pci_enable(pcidev, "cb_pcidas")) { - dev_err(dev->class_dev, - "Failed to enable PCI device and request regions\n"); - return -EIO; - } - /* - * Initialize devpriv->control_status and devpriv->adc_fifo to point to - * their base address. - */ - devpriv->s5933_config = - pci_resource_start(devpriv->pci_dev, S5933_BADRINDEX); - devpriv->control_status = - pci_resource_start(devpriv->pci_dev, CONT_STAT_BADRINDEX); - devpriv->adc_fifo = - pci_resource_start(devpriv->pci_dev, ADC_FIFO_BADRINDEX); - devpriv->pacer_counter_dio = - pci_resource_start(devpriv->pci_dev, PACER_BADRINDEX); - if (thisboard->ao_nchan) { - devpriv->ao_registers = - pci_resource_start(devpriv->pci_dev, AO_BADRINDEX); - } - /* disable and clear interrupts on amcc s5933 */ - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - - /* get irq */ - if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt, - IRQF_SHARED, "cb_pcidas", dev)) { - dev_dbg(dev->class_dev, "unable to allocate irq %d\n", - devpriv->pci_dev->irq); - return -EINVAL; - } - dev->irq = devpriv->pci_dev->irq; - - /* Initialize dev->board_name */ - dev->board_name = thisboard->name; - - ret = comedi_alloc_subdevices(dev, 7); - if (ret) - return ret; - - s = dev->subdevices + 0; - /* analog input subdevice */ - dev->read_subdev = s; - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; - /* WARNING: Number of inputs in differential mode is ignored */ - s->n_chan = thisboard->ai_se_chans; - s->len_chanlist = thisboard->ai_se_chans; - s->maxdata = (1 << thisboard->ai_bits) - 1; - s->range_table = thisboard->ranges; - s->insn_read = cb_pcidas_ai_rinsn; - s->insn_config = ai_config_insn; - s->do_cmd = cb_pcidas_ai_cmd; - s->do_cmdtest = cb_pcidas_ai_cmdtest; - s->cancel = cb_pcidas_cancel; - - /* analog output subdevice */ - s = dev->subdevices + 1; - if (thisboard->ao_nchan) { - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; - s->n_chan = thisboard->ao_nchan; - /* analog out resolution is the same as analog input resolution, so use ai_bits */ - s->maxdata = (1 << thisboard->ai_bits) - 1; - s->range_table = &cb_pcidas_ao_ranges; - s->insn_read = cb_pcidas_ao_readback_insn; - if (thisboard->has_ao_fifo) { - dev->write_subdev = s; - s->subdev_flags |= SDF_CMD_WRITE; - s->insn_write = cb_pcidas_ao_fifo_winsn; - s->do_cmdtest = cb_pcidas_ao_cmdtest; - s->do_cmd = cb_pcidas_ao_cmd; - s->cancel = cb_pcidas_ao_cancel; - } else { - s->insn_write = cb_pcidas_ao_nofifo_winsn; - } - } else { - s->type = COMEDI_SUBD_UNUSED; - } - - /* 8255 */ - s = dev->subdevices + 2; - subdev_8255_init(dev, s, NULL, devpriv->pacer_counter_dio + DIO_8255); - - /* serial EEPROM, */ - s = dev->subdevices + 3; - s->type = COMEDI_SUBD_MEMORY; - s->subdev_flags = SDF_READABLE | SDF_INTERNAL; - s->n_chan = 256; - s->maxdata = 0xff; - s->insn_read = eeprom_read_insn; - - /* 8800 caldac */ - s = dev->subdevices + 4; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = NUM_CHANNELS_8800; - s->maxdata = 0xff; - s->insn_read = caldac_read_insn; - s->insn_write = caldac_write_insn; - for (i = 0; i < s->n_chan; i++) - caldac_8800_write(dev, i, s->maxdata / 2); - - /* trim potentiometer */ - s = dev->subdevices + 5; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - if (thisboard->trimpot == AD7376) { - s->n_chan = NUM_CHANNELS_7376; - s->maxdata = 0x7f; - } else { - s->n_chan = NUM_CHANNELS_8402; - s->maxdata = 0xff; - } - s->insn_read = trimpot_read_insn; - s->insn_write = trimpot_write_insn; - for (i = 0; i < s->n_chan; i++) - cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); - - /* dac08 caldac */ - s = dev->subdevices + 6; - if (thisboard->has_dac08) { - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = NUM_CHANNELS_DAC08; - s->insn_read = dac08_read_insn; - s->insn_write = dac08_write_insn; - s->maxdata = 0xff; - dac08_write(dev, s->maxdata / 2); - } else - s->type = COMEDI_SUBD_UNUSED; - - /* make sure mailbox 4 is empty */ - inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); - /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ - devpriv->s5933_intcsr_bits = - INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | - INTCSR_INBOX_FULL_INT; - /* clear and enable interrupt on amcc s5933 */ - outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - - return 1; -} - -static void cb_pcidas_detach(struct comedi_device *dev) -{ - if (devpriv) { - if (devpriv->s5933_config) { - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - } - } - if (dev->irq) - free_irq(dev->irq, dev); - if (dev->subdevices) - subdev_8255_cleanup(dev, dev->subdevices + 2); - if (devpriv && devpriv->pci_dev) { - if (devpriv->s5933_config) - comedi_pci_disable(devpriv->pci_dev); - pci_dev_put(devpriv->pci_dev); - } -} - /* * "instructions" read/write data in "one-shot" or "software-triggered" * mode. @@ -1872,6 +1597,225 @@ static int nvram_read(struct comedi_device *dev, unsigned int address, return 0; } +static int cb_pcidas_attach(struct comedi_device *dev, + struct comedi_devconfig *it) +{ + struct comedi_subdevice *s; + struct pci_dev *pcidev = NULL; + int index; + int i; + int ret; + +/* + * Allocate the private structure area. + */ + if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0) + return -ENOMEM; + +/* + * Probe the device to determine what device in the series it is. + */ + + for_each_pci_dev(pcidev) { + /* is it not a computer boards card? */ + if (pcidev->vendor != PCI_VENDOR_ID_CB) + continue; + /* loop through cards supported by this driver */ + for (index = 0; index < ARRAY_SIZE(cb_pcidas_boards); index++) { + if (cb_pcidas_boards[index].device_id != pcidev->device) + continue; + /* was a particular bus/slot requested? */ + if (it->options[0] || it->options[1]) { + /* are we on the wrong bus/slot? */ + if (pcidev->bus->number != it->options[0] || + PCI_SLOT(pcidev->devfn) != it->options[1]) { + continue; + } + } + devpriv->pci_dev = pcidev; + dev->board_ptr = cb_pcidas_boards + index; + goto found; + } + } + + dev_err(dev->class_dev, + "No supported ComputerBoards/MeasurementComputing card found on requested position\n"); + return -EIO; + +found: + + dev_dbg(dev->class_dev, "Found %s on bus %i, slot %i\n", + cb_pcidas_boards[index].name, pcidev->bus->number, + PCI_SLOT(pcidev->devfn)); + + /* + * Enable PCI device and reserve I/O ports. + */ + if (comedi_pci_enable(pcidev, "cb_pcidas")) { + dev_err(dev->class_dev, + "Failed to enable PCI device and request regions\n"); + return -EIO; + } + /* + * Initialize devpriv->control_status and devpriv->adc_fifo to point to + * their base address. + */ + devpriv->s5933_config = + pci_resource_start(devpriv->pci_dev, S5933_BADRINDEX); + devpriv->control_status = + pci_resource_start(devpriv->pci_dev, CONT_STAT_BADRINDEX); + devpriv->adc_fifo = + pci_resource_start(devpriv->pci_dev, ADC_FIFO_BADRINDEX); + devpriv->pacer_counter_dio = + pci_resource_start(devpriv->pci_dev, PACER_BADRINDEX); + if (thisboard->ao_nchan) { + devpriv->ao_registers = + pci_resource_start(devpriv->pci_dev, AO_BADRINDEX); + } + /* disable and clear interrupts on amcc s5933 */ + outl(INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); + + /* get irq */ + if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt, + IRQF_SHARED, "cb_pcidas", dev)) { + dev_dbg(dev->class_dev, "unable to allocate irq %d\n", + devpriv->pci_dev->irq); + return -EINVAL; + } + dev->irq = devpriv->pci_dev->irq; + + /* Initialize dev->board_name */ + dev->board_name = thisboard->name; + + ret = comedi_alloc_subdevices(dev, 7); + if (ret) + return ret; + + s = dev->subdevices + 0; + /* analog input subdevice */ + dev->read_subdev = s; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; + /* WARNING: Number of inputs in differential mode is ignored */ + s->n_chan = thisboard->ai_se_chans; + s->len_chanlist = thisboard->ai_se_chans; + s->maxdata = (1 << thisboard->ai_bits) - 1; + s->range_table = thisboard->ranges; + s->insn_read = cb_pcidas_ai_rinsn; + s->insn_config = ai_config_insn; + s->do_cmd = cb_pcidas_ai_cmd; + s->do_cmdtest = cb_pcidas_ai_cmdtest; + s->cancel = cb_pcidas_cancel; + + /* analog output subdevice */ + s = dev->subdevices + 1; + if (thisboard->ao_nchan) { + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; + s->n_chan = thisboard->ao_nchan; + /* analog out resolution is the same as analog input resolution, so use ai_bits */ + s->maxdata = (1 << thisboard->ai_bits) - 1; + s->range_table = &cb_pcidas_ao_ranges; + s->insn_read = cb_pcidas_ao_readback_insn; + if (thisboard->has_ao_fifo) { + dev->write_subdev = s; + s->subdev_flags |= SDF_CMD_WRITE; + s->insn_write = cb_pcidas_ao_fifo_winsn; + s->do_cmdtest = cb_pcidas_ao_cmdtest; + s->do_cmd = cb_pcidas_ao_cmd; + s->cancel = cb_pcidas_ao_cancel; + } else { + s->insn_write = cb_pcidas_ao_nofifo_winsn; + } + } else { + s->type = COMEDI_SUBD_UNUSED; + } + + /* 8255 */ + s = dev->subdevices + 2; + subdev_8255_init(dev, s, NULL, devpriv->pacer_counter_dio + DIO_8255); + + /* serial EEPROM, */ + s = dev->subdevices + 3; + s->type = COMEDI_SUBD_MEMORY; + s->subdev_flags = SDF_READABLE | SDF_INTERNAL; + s->n_chan = 256; + s->maxdata = 0xff; + s->insn_read = eeprom_read_insn; + + /* 8800 caldac */ + s = dev->subdevices + 4; + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + s->n_chan = NUM_CHANNELS_8800; + s->maxdata = 0xff; + s->insn_read = caldac_read_insn; + s->insn_write = caldac_write_insn; + for (i = 0; i < s->n_chan; i++) + caldac_8800_write(dev, i, s->maxdata / 2); + + /* trim potentiometer */ + s = dev->subdevices + 5; + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + if (thisboard->trimpot == AD7376) { + s->n_chan = NUM_CHANNELS_7376; + s->maxdata = 0x7f; + } else { + s->n_chan = NUM_CHANNELS_8402; + s->maxdata = 0xff; + } + s->insn_read = trimpot_read_insn; + s->insn_write = trimpot_write_insn; + for (i = 0; i < s->n_chan; i++) + cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); + + /* dac08 caldac */ + s = dev->subdevices + 6; + if (thisboard->has_dac08) { + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + s->n_chan = NUM_CHANNELS_DAC08; + s->insn_read = dac08_read_insn; + s->insn_write = dac08_write_insn; + s->maxdata = 0xff; + dac08_write(dev, s->maxdata / 2); + } else + s->type = COMEDI_SUBD_UNUSED; + + /* make sure mailbox 4 is empty */ + inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); + /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ + devpriv->s5933_intcsr_bits = + INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | + INTCSR_INBOX_FULL_INT; + /* clear and enable interrupt on amcc s5933 */ + outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); + + return 1; +} + +static void cb_pcidas_detach(struct comedi_device *dev) +{ + if (devpriv) { + if (devpriv->s5933_config) { + outl(INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); + } + } + if (dev->irq) + free_irq(dev->irq, dev); + if (dev->subdevices) + subdev_8255_cleanup(dev, dev->subdevices + 2); + if (devpriv && devpriv->pci_dev) { + if (devpriv->s5933_config) + comedi_pci_disable(devpriv->pci_dev); + pci_dev_put(devpriv->pci_dev); + } +} + static struct comedi_driver cb_pcidas_driver = { .driver_name = "cb_pcidas", .module = THIS_MODULE, -- 2.20.1