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Date: Mon, 2 Jul 2012 18:11:23 -0700
From: H Hartley Sweeten <hartleys@...ionengravers.com>
To: Linux Kernel <linux-kernel@...r.kernel.org>
CC: <devel@...verdev.osuosl.org>, <abbotti@....co.uk>,
<fmhess@...rs.sourceforge.net>, <gregkh@...uxfoundation.org>
Subject: [PATCH 2/8] staging: comedi: dmm32at: remove forward declarations 1
Move the attach/detach functions as well as the boardinfo variable
to remove the need to most of the forward declarations.
Add some whitespace to the boardinfo during the move.
Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Frank Mori Hess <fmhess@...rs.sourceforge.net>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/staging/comedi/drivers/dmm32at.c | 373 ++++++++++++++-----------------
1 file changed, 172 insertions(+), 201 deletions(-)
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index ad7fef9..9c3d322 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -175,19 +175,6 @@ struct dmm32at_board {
int have_dio;
int dio_chans;
};
-static const struct dmm32at_board dmm32at_boards[] = {
- {
- .name = "dmm32at",
- .ai_chans = 32,
- .ai_bits = 16,
- .ai_ranges = &dmm32at_airanges,
- .ao_chans = 4,
- .ao_bits = 12,
- .ao_ranges = &dmm32at_aoranges,
- .have_dio = 1,
- .dio_chans = 24,
- },
-};
/* this structure is for data unique to this hardware driver. If
* several hardware drivers keep similar information in this structure,
@@ -212,198 +199,10 @@ struct dmm32at_private {
#define devpriv ((struct dmm32at_private *)dev->private)
/* prototypes for driver functions below */
-static int dmm32at_ai_rinsn(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int dmm32at_ao_winsn(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int dmm32at_ao_rinsn(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int dmm32at_dio_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int dmm32at_dio_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data);
-static int dmm32at_ai_cmdtest(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_cmd *cmd);
-static int dmm32at_ai_cmd(struct comedi_device *dev,
- struct comedi_subdevice *s);
-static int dmm32at_ai_cancel(struct comedi_device *dev,
- struct comedi_subdevice *s);
static int dmm32at_ns_to_timer(unsigned int *ns, int round);
-static irqreturn_t dmm32at_isr(int irq, void *d);
void dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec);
/*
- * 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 dmm32at_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- const struct dmm32at_board *board = comedi_board(dev);
- int ret;
- struct comedi_subdevice *s;
- unsigned char aihi, ailo, fifostat, aistat, intstat, airback;
- unsigned long iobase;
- unsigned int irq;
-
- iobase = it->options[0];
- irq = it->options[1];
-
- printk(KERN_INFO "comedi%d: dmm32at: attaching\n", dev->minor);
- printk(KERN_DEBUG "dmm32at: probing at address 0x%04lx, irq %u\n",
- iobase, irq);
-
- /* register address space */
- if (!request_region(iobase, DMM32AT_MEMSIZE, board->name)) {
- printk(KERN_ERR "comedi%d: dmm32at: I/O port conflict\n",
- dev->minor);
- return -EIO;
- }
- dev->iobase = iobase;
-
- /* the following just makes sure the board is there and gets
- it to a known state */
-
- /* reset the board */
- dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_RESET);
-
- /* allow a millisecond to reset */
- udelay(1000);
-
- /* zero scan and fifo control */
- dmm_outb(dev, DMM32AT_FIFOCNTRL, 0x0);
-
- /* zero interrupt and clock control */
- dmm_outb(dev, DMM32AT_INTCLOCK, 0x0);
-
- /* write a test channel range, the high 3 bits should drop */
- dmm_outb(dev, DMM32AT_AILOW, 0x80);
- dmm_outb(dev, DMM32AT_AIHIGH, 0xff);
-
- /* set the range at 10v unipolar */
- dmm_outb(dev, DMM32AT_AICONF, DMM32AT_RANGE_U10);
-
- /* should take 10 us to settle, here's a hundred */
- udelay(100);
-
- /* read back the values */
- ailo = dmm_inb(dev, DMM32AT_AILOW);
- aihi = dmm_inb(dev, DMM32AT_AIHIGH);
- fifostat = dmm_inb(dev, DMM32AT_FIFOSTAT);
- aistat = dmm_inb(dev, DMM32AT_AISTAT);
- intstat = dmm_inb(dev, DMM32AT_INTCLOCK);
- airback = dmm_inb(dev, DMM32AT_AIRBACK);
-
- printk(KERN_DEBUG "dmm32at: lo=0x%02x hi=0x%02x fifostat=0x%02x\n",
- ailo, aihi, fifostat);
- printk(KERN_DEBUG
- "dmm32at: aistat=0x%02x intstat=0x%02x airback=0x%02x\n",
- aistat, intstat, airback);
-
- if ((ailo != 0x00) || (aihi != 0x1f) || (fifostat != 0x80) ||
- (aistat != 0x60 || (intstat != 0x00) || airback != 0x0c)) {
- printk(KERN_ERR "dmmat32: board detection failed\n");
- return -EIO;
- }
-
- /* board is there, register interrupt */
- if (irq) {
- ret = request_irq(irq, dmm32at_isr, 0, board->name, dev);
- if (ret < 0) {
- printk(KERN_ERR "dmm32at: irq conflict\n");
- return ret;
- }
- dev->irq = irq;
- }
-
- dev->board_name = board->name;
-
-/*
- * Allocate the private structure area. alloc_private() is a
- * convenient macro defined in comedidev.h.
- */
- if (alloc_private(dev, sizeof(struct dmm32at_private)) < 0)
- return -ENOMEM;
-
- ret = comedi_alloc_subdevices(dev, 3);
- if (ret)
- return ret;
-
- s = dev->subdevices + 0;
- dev->read_subdev = s;
- /* analog input subdevice */
- s->type = COMEDI_SUBD_AI;
- /* we support single-ended (ground) and differential */
- s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
- s->n_chan = board->ai_chans;
- s->maxdata = (1 << board->ai_bits) - 1;
- s->range_table = board->ai_ranges;
- s->len_chanlist = 32; /* This is the maximum chanlist length that
- the board can handle */
- s->insn_read = dmm32at_ai_rinsn;
- s->do_cmd = dmm32at_ai_cmd;
- s->do_cmdtest = dmm32at_ai_cmdtest;
- s->cancel = dmm32at_ai_cancel;
-
- s = dev->subdevices + 1;
- /* analog output subdevice */
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = board->ao_chans;
- s->maxdata = (1 << board->ao_bits) - 1;
- s->range_table = board->ao_ranges;
- s->insn_write = dmm32at_ao_winsn;
- s->insn_read = dmm32at_ao_rinsn;
-
- s = dev->subdevices + 2;
- /* digital i/o subdevice */
- if (board->have_dio) {
-
- /* get access to the DIO regs */
- dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC);
- /* set the DIO's to the defualt input setting */
- devpriv->dio_config = DMM32AT_DIRA | DMM32AT_DIRB |
- DMM32AT_DIRCL | DMM32AT_DIRCH | DMM32AT_DIENABLE;
- dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config);
-
- /* set up the subdevice */
- s->type = COMEDI_SUBD_DIO;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = board->dio_chans;
- s->maxdata = 1;
- s->state = 0;
- s->range_table = &range_digital;
- s->insn_bits = dmm32at_dio_insn_bits;
- s->insn_config = dmm32at_dio_insn_config;
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- /* success */
- printk(KERN_INFO "comedi%d: dmm32at: attached\n", dev->minor);
-
- return 1;
-
-}
-
-static void dmm32at_detach(struct comedi_device *dev)
-{
- if (dev->irq)
- free_irq(dev->irq, dev);
- if (dev->iobase)
- release_region(dev->iobase, DMM32AT_MEMSIZE);
-}
-
-/*
* "instructions" read/write data in "one-shot" or "software-triggered"
* mode.
*/
@@ -990,6 +789,178 @@ void dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec)
}
+static int dmm32at_attach(struct comedi_device *dev,
+ struct comedi_devconfig *it)
+{
+ const struct dmm32at_board *board = comedi_board(dev);
+ int ret;
+ struct comedi_subdevice *s;
+ unsigned char aihi, ailo, fifostat, aistat, intstat, airback;
+ unsigned long iobase;
+ unsigned int irq;
+
+ iobase = it->options[0];
+ irq = it->options[1];
+
+ printk(KERN_INFO "comedi%d: dmm32at: attaching\n", dev->minor);
+ printk(KERN_DEBUG "dmm32at: probing at address 0x%04lx, irq %u\n",
+ iobase, irq);
+
+ /* register address space */
+ if (!request_region(iobase, DMM32AT_MEMSIZE, board->name)) {
+ printk(KERN_ERR "comedi%d: dmm32at: I/O port conflict\n",
+ dev->minor);
+ return -EIO;
+ }
+ dev->iobase = iobase;
+
+ /* the following just makes sure the board is there and gets
+ it to a known state */
+
+ /* reset the board */
+ dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_RESET);
+
+ /* allow a millisecond to reset */
+ udelay(1000);
+
+ /* zero scan and fifo control */
+ dmm_outb(dev, DMM32AT_FIFOCNTRL, 0x0);
+
+ /* zero interrupt and clock control */
+ dmm_outb(dev, DMM32AT_INTCLOCK, 0x0);
+
+ /* write a test channel range, the high 3 bits should drop */
+ dmm_outb(dev, DMM32AT_AILOW, 0x80);
+ dmm_outb(dev, DMM32AT_AIHIGH, 0xff);
+
+ /* set the range at 10v unipolar */
+ dmm_outb(dev, DMM32AT_AICONF, DMM32AT_RANGE_U10);
+
+ /* should take 10 us to settle, here's a hundred */
+ udelay(100);
+
+ /* read back the values */
+ ailo = dmm_inb(dev, DMM32AT_AILOW);
+ aihi = dmm_inb(dev, DMM32AT_AIHIGH);
+ fifostat = dmm_inb(dev, DMM32AT_FIFOSTAT);
+ aistat = dmm_inb(dev, DMM32AT_AISTAT);
+ intstat = dmm_inb(dev, DMM32AT_INTCLOCK);
+ airback = dmm_inb(dev, DMM32AT_AIRBACK);
+
+ printk(KERN_DEBUG "dmm32at: lo=0x%02x hi=0x%02x fifostat=0x%02x\n",
+ ailo, aihi, fifostat);
+ printk(KERN_DEBUG
+ "dmm32at: aistat=0x%02x intstat=0x%02x airback=0x%02x\n",
+ aistat, intstat, airback);
+
+ if ((ailo != 0x00) || (aihi != 0x1f) || (fifostat != 0x80) ||
+ (aistat != 0x60 || (intstat != 0x00) || airback != 0x0c)) {
+ printk(KERN_ERR "dmmat32: board detection failed\n");
+ return -EIO;
+ }
+
+ /* board is there, register interrupt */
+ if (irq) {
+ ret = request_irq(irq, dmm32at_isr, 0, board->name, dev);
+ if (ret < 0) {
+ printk(KERN_ERR "dmm32at: irq conflict\n");
+ return ret;
+ }
+ dev->irq = irq;
+ }
+
+ dev->board_name = board->name;
+
+/*
+ * Allocate the private structure area. alloc_private() is a
+ * convenient macro defined in comedidev.h.
+ */
+ if (alloc_private(dev, sizeof(struct dmm32at_private)) < 0)
+ return -ENOMEM;
+
+ ret = comedi_alloc_subdevices(dev, 3);
+ if (ret)
+ return ret;
+
+ s = dev->subdevices + 0;
+ dev->read_subdev = s;
+ /* analog input subdevice */
+ s->type = COMEDI_SUBD_AI;
+ /* we support single-ended (ground) and differential */
+ s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
+ s->n_chan = board->ai_chans;
+ s->maxdata = (1 << board->ai_bits) - 1;
+ s->range_table = board->ai_ranges;
+ s->len_chanlist = 32; /* This is the maximum chanlist length that
+ the board can handle */
+ s->insn_read = dmm32at_ai_rinsn;
+ s->do_cmd = dmm32at_ai_cmd;
+ s->do_cmdtest = dmm32at_ai_cmdtest;
+ s->cancel = dmm32at_ai_cancel;
+
+ s = dev->subdevices + 1;
+ /* analog output subdevice */
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITABLE;
+ s->n_chan = board->ao_chans;
+ s->maxdata = (1 << board->ao_bits) - 1;
+ s->range_table = board->ao_ranges;
+ s->insn_write = dmm32at_ao_winsn;
+ s->insn_read = dmm32at_ao_rinsn;
+
+ s = dev->subdevices + 2;
+ /* digital i/o subdevice */
+ if (board->have_dio) {
+
+ /* get access to the DIO regs */
+ dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC);
+ /* set the DIO's to the defualt input setting */
+ devpriv->dio_config = DMM32AT_DIRA | DMM32AT_DIRB |
+ DMM32AT_DIRCL | DMM32AT_DIRCH | DMM32AT_DIENABLE;
+ dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config);
+
+ /* set up the subdevice */
+ s->type = COMEDI_SUBD_DIO;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = board->dio_chans;
+ s->maxdata = 1;
+ s->state = 0;
+ s->range_table = &range_digital;
+ s->insn_bits = dmm32at_dio_insn_bits;
+ s->insn_config = dmm32at_dio_insn_config;
+ } else {
+ s->type = COMEDI_SUBD_UNUSED;
+ }
+
+ /* success */
+ printk(KERN_INFO "comedi%d: dmm32at: attached\n", dev->minor);
+
+ return 1;
+
+}
+
+static void dmm32at_detach(struct comedi_device *dev)
+{
+ if (dev->irq)
+ free_irq(dev->irq, dev);
+ if (dev->iobase)
+ release_region(dev->iobase, DMM32AT_MEMSIZE);
+}
+
+static const struct dmm32at_board dmm32at_boards[] = {
+ {
+ .name = "dmm32at",
+ .ai_chans = 32,
+ .ai_bits = 16,
+ .ai_ranges = &dmm32at_airanges,
+ .ao_chans = 4,
+ .ao_bits = 12,
+ .ao_ranges = &dmm32at_aoranges,
+ .have_dio = 1,
+ .dio_chans = 24,
+ },
+};
+
static struct comedi_driver dmm32at_driver = {
.driver_name = "dmm32at",
.module = THIS_MODULE,
--
1.7.11
--
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