staging: comedi: adv_pci1710: remove forward declarations

Move some of the functions to remove the need for the forward
declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 5bea385..66bd385 100644 (file)
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -330,30 +330,108 @@ struct pci1710_private {
                                         * internal state */
 };
 
+/*  used for gain list programming */
+static const unsigned int muxonechan[] = {
+       0x0000, 0x0101, 0x0202, 0x0303, 0x0404, 0x0505, 0x0606, 0x0707,
+       0x0808, 0x0909, 0x0a0a, 0x0b0b, 0x0c0c, 0x0d0d, 0x0e0e, 0x0f0f,
+       0x1010, 0x1111, 0x1212, 0x1313, 0x1414, 0x1515, 0x1616, 0x1717,
+       0x1818, 0x1919, 0x1a1a, 0x1b1b, 0x1c1c, 0x1d1d, 0x1e1e, 0x1f1f
+};
+
 /*
 ==============================================================================
+ Check if channel list from user is builded correctly
+ If it's ok, then program scan/gain logic.
+ This works for all cards.
 */
-
 static int check_channel_list(struct comedi_device *dev,
                              struct comedi_subdevice *s,
-                             unsigned int *chanlist, unsigned int n_chan);
+                             unsigned int *chanlist, unsigned int n_chan)
+{
+       unsigned int chansegment[32];
+       unsigned int i, nowmustbechan, seglen, segpos;
+
+       /* correct channel and range number check itself comedi/range.c */
+       if (n_chan < 1) {
+               comedi_error(dev, "range/channel list is empty!");
+               return 0;
+       }
+
+       if (n_chan == 1)
+               return 1; /* seglen=1 */
+
+       chansegment[0] = chanlist[0]; /*  first channel is every time ok */
+       for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
+               if (chanlist[0] == chanlist[i])
+                       break;  /*  we detected a loop, stop */
+               if ((CR_CHAN(chanlist[i]) & 1) &&
+                   (CR_AREF(chanlist[i]) == AREF_DIFF)) {
+                       comedi_error(dev, "Odd channel cannot be differential input!\n");
+                       return 0;
+               }
+               nowmustbechan = (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
+               if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
+                       nowmustbechan = (nowmustbechan + 1) % s->n_chan;
+               if (nowmustbechan != CR_CHAN(chanlist[i])) {
+                       printk("channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
+                              i, CR_CHAN(chanlist[i]), nowmustbechan,
+                              CR_CHAN(chanlist[0]));
+                       return 0;
+               }
+               chansegment[i] = chanlist[i]; /* next correct channel in list */
+       }
+
+       for (i = 0, segpos = 0; i < n_chan; i++) {
+               if (chanlist[i] != chansegment[i % seglen]) {
+                       printk("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
+                              i, CR_CHAN(chansegment[i]),
+                              CR_RANGE(chansegment[i]),
+                              CR_AREF(chansegment[i]),
+                              CR_CHAN(chanlist[i % seglen]),
+                              CR_RANGE(chanlist[i % seglen]),
+                              CR_AREF(chansegment[i % seglen]));
+                       return 0;
+               }
+       }
+       return seglen;
+}
+
 static void setup_channel_list(struct comedi_device *dev,
                               struct comedi_subdevice *s,
                               unsigned int *chanlist, unsigned int n_chan,
-                              unsigned int seglen);
-static void start_pacer(struct comedi_device *dev, int mode,
-                       unsigned int divisor1, unsigned int divisor2);
-static int pci1710_reset(struct comedi_device *dev);
-static int pci171x_ai_cancel(struct comedi_device *dev,
-                            struct comedi_subdevice *s);
+                              unsigned int seglen)
+{
+       const struct boardtype *this_board = comedi_board(dev);
+       struct pci1710_private *devpriv = dev->private;
+       unsigned int i, range, chanprog;
 
-/*  used for gain list programming */
-static const unsigned int muxonechan[] = {
-       0x0000, 0x0101, 0x0202, 0x0303, 0x0404, 0x0505, 0x0606, 0x0707,
-       0x0808, 0x0909, 0x0a0a, 0x0b0b, 0x0c0c, 0x0d0d, 0x0e0e, 0x0f0f,
-       0x1010, 0x1111, 0x1212, 0x1313, 0x1414, 0x1515, 0x1616, 0x1717,
-       0x1818, 0x1919, 0x1a1a, 0x1b1b, 0x1c1c, 0x1d1d, 0x1e1e, 0x1f1f
-};
+       devpriv->act_chanlist_len = seglen;
+       devpriv->act_chanlist_pos = 0;
+
+       for (i = 0; i < seglen; i++) {  /*  store range list to card */
+               chanprog = muxonechan[CR_CHAN(chanlist[i])];
+               outw(chanprog, dev->iobase + PCI171x_MUX); /* select channel */
+               range = this_board->rangecode_ai[CR_RANGE(chanlist[i])];
+               if (CR_AREF(chanlist[i]) == AREF_DIFF)
+                       range |= 0x0020;
+               outw(range, dev->iobase + PCI171x_RANGE); /* select gain */
+#ifdef PCI171x_PARANOIDCHECK
+               devpriv->act_chanlist[i] =
+                       (CR_CHAN(chanlist[i]) << 12) & 0xf000;
+#endif
+       }
+#ifdef PCI171x_PARANOIDCHECK
+       for ( ; i < n_chan; i++) { /* store remainder of channel list */
+               devpriv->act_chanlist[i] =
+                       (CR_CHAN(chanlist[i]) << 12) & 0xf000;
+       }
+#endif
+
+       devpriv->ai_et_MuxVal =
+               CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);
+       /* select channel interval to scan */
+       outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
+}
 
 /*
 ==============================================================================
@@ -494,6 +572,23 @@ static int pci171x_insn_bits_do(struct comedi_device *dev,
 /*
 ==============================================================================
 */
+static void start_pacer(struct comedi_device *dev, int mode,
+                       unsigned int divisor1, unsigned int divisor2)
+{
+       outw(0xb4, dev->iobase + PCI171x_CNTCTRL);
+       outw(0x74, dev->iobase + PCI171x_CNTCTRL);
+
+       if (mode == 1) {
+               outw(divisor2 & 0xff, dev->iobase + PCI171x_CNT2);
+               outw((divisor2 >> 8) & 0xff, dev->iobase + PCI171x_CNT2);
+               outw(divisor1 & 0xff, dev->iobase + PCI171x_CNT1);
+               outw((divisor1 >> 8) & 0xff, dev->iobase + PCI171x_CNT1);
+       }
+}
+
+/*
+==============================================================================
+*/
 static int pci171x_insn_counter_read(struct comedi_device *dev,
                                     struct comedi_subdevice *s,
                                     struct comedi_insn *insn,
@@ -615,6 +710,36 @@ static int pci1720_insn_write_ao(struct comedi_device *dev,
 /*
 ==============================================================================
 */
+static int pci171x_ai_cancel(struct comedi_device *dev,
+                            struct comedi_subdevice *s)
+{
+       const struct boardtype *this_board = comedi_board(dev);
+       struct pci1710_private *devpriv = dev->private;
+
+       switch (this_board->cardtype) {
+       default:
+               devpriv->CntrlReg &= Control_CNT0;
+               devpriv->CntrlReg |= Control_SW;
+
+               outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); /*  reset any operations */
+               start_pacer(dev, -1, 0, 0);
+               outb(0, dev->iobase + PCI171x_CLRFIFO);
+               outb(0, dev->iobase + PCI171x_CLRINT);
+               break;
+       }
+
+       devpriv->ai_do = 0;
+       devpriv->ai_act_scan = 0;
+       s->async->cur_chan = 0;
+       devpriv->ai_buf_ptr = 0;
+       devpriv->neverending_ai = 0;
+
+       return 0;
+}
+
+/*
+==============================================================================
+*/
 static void interrupt_pci1710_every_sample(void *d)
 {
        struct comedi_device *dev = d;
@@ -1091,148 +1216,6 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 /*
 ==============================================================================
- Check if channel list from user is builded correctly
- If it's ok, then program scan/gain logic.
- This works for all cards.
-*/
-static int check_channel_list(struct comedi_device *dev,
-                             struct comedi_subdevice *s,
-                             unsigned int *chanlist, unsigned int n_chan)
-{
-       unsigned int chansegment[32];
-       unsigned int i, nowmustbechan, seglen, segpos;
-
-       /* correct channel and range number check itself comedi/range.c */
-       if (n_chan < 1) {
-               comedi_error(dev, "range/channel list is empty!");
-               return 0;
-       }
-
-       if (n_chan == 1)
-               return 1; /* seglen=1 */
-
-       chansegment[0] = chanlist[0]; /*  first channel is every time ok */
-       for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
-               if (chanlist[0] == chanlist[i])
-                       break;  /*  we detected a loop, stop */
-               if ((CR_CHAN(chanlist[i]) & 1) &&
-                   (CR_AREF(chanlist[i]) == AREF_DIFF)) {
-                       comedi_error(dev, "Odd channel cannot be differential input!\n");
-                       return 0;
-               }
-               nowmustbechan = (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
-               if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
-                       nowmustbechan = (nowmustbechan + 1) % s->n_chan;
-               if (nowmustbechan != CR_CHAN(chanlist[i])) {
-                       printk("channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-                              i, CR_CHAN(chanlist[i]), nowmustbechan,
-                              CR_CHAN(chanlist[0]));
-                       return 0;
-               }
-               chansegment[i] = chanlist[i]; /* next correct channel in list */
-       }
-
-       for (i = 0, segpos = 0; i < n_chan; i++) {
-               if (chanlist[i] != chansegment[i % seglen]) {
-                       printk("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-                              i, CR_CHAN(chansegment[i]),
-                              CR_RANGE(chansegment[i]),
-                              CR_AREF(chansegment[i]),
-                              CR_CHAN(chanlist[i % seglen]),
-                              CR_RANGE(chanlist[i % seglen]),
-                              CR_AREF(chansegment[i % seglen]));
-                       return 0;
-               }
-       }
-       return seglen;
-}
-
-static void setup_channel_list(struct comedi_device *dev,
-                              struct comedi_subdevice *s,
-                              unsigned int *chanlist, unsigned int n_chan,
-                              unsigned int seglen)
-{
-       const struct boardtype *this_board = comedi_board(dev);
-       struct pci1710_private *devpriv = dev->private;
-       unsigned int i, range, chanprog;
-
-       devpriv->act_chanlist_len = seglen;
-       devpriv->act_chanlist_pos = 0;
-
-       for (i = 0; i < seglen; i++) {  /*  store range list to card */
-               chanprog = muxonechan[CR_CHAN(chanlist[i])];
-               outw(chanprog, dev->iobase + PCI171x_MUX); /* select channel */
-               range = this_board->rangecode_ai[CR_RANGE(chanlist[i])];
-               if (CR_AREF(chanlist[i]) == AREF_DIFF)
-                       range |= 0x0020;
-               outw(range, dev->iobase + PCI171x_RANGE); /* select gain */
-#ifdef PCI171x_PARANOIDCHECK
-               devpriv->act_chanlist[i] =
-                       (CR_CHAN(chanlist[i]) << 12) & 0xf000;
-#endif
-       }
-#ifdef PCI171x_PARANOIDCHECK
-       for ( ; i < n_chan; i++) { /* store remainder of channel list */
-               devpriv->act_chanlist[i] =
-                       (CR_CHAN(chanlist[i]) << 12) & 0xf000;
-       }
-#endif
-
-       devpriv->ai_et_MuxVal =
-               CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);
-       /* select channel interval to scan */
-       outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
-}
-
-/*
-==============================================================================
-*/
-static void start_pacer(struct comedi_device *dev, int mode,
-                       unsigned int divisor1, unsigned int divisor2)
-{
-       outw(0xb4, dev->iobase + PCI171x_CNTCTRL);
-       outw(0x74, dev->iobase + PCI171x_CNTCTRL);
-
-       if (mode == 1) {
-               outw(divisor2 & 0xff, dev->iobase + PCI171x_CNT2);
-               outw((divisor2 >> 8) & 0xff, dev->iobase + PCI171x_CNT2);
-               outw(divisor1 & 0xff, dev->iobase + PCI171x_CNT1);
-               outw((divisor1 >> 8) & 0xff, dev->iobase + PCI171x_CNT1);
-       }
-}
-
-/*
-==============================================================================
-*/
-static int pci171x_ai_cancel(struct comedi_device *dev,
-                            struct comedi_subdevice *s)
-{
-       const struct boardtype *this_board = comedi_board(dev);
-       struct pci1710_private *devpriv = dev->private;
-
-       switch (this_board->cardtype) {
-       default:
-               devpriv->CntrlReg &= Control_CNT0;
-               devpriv->CntrlReg |= Control_SW;
-
-               outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); /*  reset any operations */
-               start_pacer(dev, -1, 0, 0);
-               outb(0, dev->iobase + PCI171x_CLRFIFO);
-               outb(0, dev->iobase + PCI171x_CLRINT);
-               break;
-       }
-
-       devpriv->ai_do = 0;
-       devpriv->ai_act_scan = 0;
-       s->async->cur_chan = 0;
-       devpriv->ai_buf_ptr = 0;
-       devpriv->neverending_ai = 0;
-
-       return 0;
-}
-
-/*
-==============================================================================
 */
 static int pci171x_reset(struct comedi_device *dev)
 {