staging: comedi: ni_labpc: cleanup true/false flags in boardinfo

The 'register_layout' in the boardinfo can be represented as
a true/false flag instead of an enum. Rename the variable to
'is_labpc1200' and change it to an unsigned 1-bit bit-field.

The 'has_ao' variable is also a true/false flag. Change it to
an unsigned 1-bit bit-field.

Reorder the boardinfo data so that the bit-field data is grouped
together.

For aesthetic reasons, and move the 'const' variables then
reorder the boardinfo declarations to match the definition.

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

diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 3d978f3..da10a76 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -238,26 +238,25 @@ static inline void labpc_writeb(unsigned int byte, unsigned long address)
 static const struct labpc_boardinfo labpc_boards[] = {
        {
                .name                   = "lab-pc-1200",
-               .ai_speed               = 10000,
-               .register_layout        = labpc_1200_layout,
-               .has_ao                 = 1,
                .ai_range_table         = &range_labpc_1200_ai,
                .ai_range_code          = labpc_1200_ai_gain_bits,
+               .ai_speed               = 10000,
                .ai_scan_up             = 1,
+               .has_ao                 = 1,
+               .is_labpc1200           = 1,
        }, {
                .name                   = "lab-pc-1200ai",
-               .ai_speed               = 10000,
-               .register_layout        = labpc_1200_layout,
                .ai_range_table         = &range_labpc_1200_ai,
                .ai_range_code          = labpc_1200_ai_gain_bits,
+               .ai_speed               = 10000,
                .ai_scan_up             = 1,
+               .is_labpc1200           = 1,
        }, {
                .name                   = "lab-pc+",
-               .ai_speed               = 12000,
-               .register_layout        = labpc_plus_layout,
-               .has_ao                 = 1,
                .ai_range_table         = &range_labpc_plus_ai,
                .ai_range_code          = labpc_plus_ai_gain_bits,
+               .ai_speed               = 12000,
+               .has_ao                 = 1,
        },
 };
 #endif
@@ -347,7 +346,7 @@ static void labpc_setup_cmd6_reg(struct comedi_device *dev,
        const struct labpc_boardinfo *board = comedi_board(dev);
        struct labpc_private *devpriv = dev->private;
 
-       if (board->register_layout != labpc_1200_layout)
+       if (!board->is_labpc1200)
                return;
 
        /* reference inputs to ground or common? */
@@ -759,7 +758,7 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
        err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
 
        stop_mask = TRIG_COUNT | TRIG_NONE;
-       if (board->register_layout == labpc_1200_layout)
+       if (board->is_labpc1200)
                stop_mask |= TRIG_EXT;
        err |= cfc_check_trigger_src(&cmd->stop_src, stop_mask);
 
@@ -895,7 +894,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
                /* pc-plus has no fifo-half full interrupt */
        } else
 #endif
-       if (board->register_layout == labpc_1200_layout &&
+       if (board->is_labpc1200 &&
                   /*  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 */
@@ -1176,7 +1175,7 @@ static irqreturn_t labpc_interrupt(int irq, void *d)
 
        /* read board status */
        devpriv->stat1 = devpriv->read_byte(dev->iobase + STAT1_REG);
-       if (board->register_layout == labpc_1200_layout)
+       if (board->is_labpc1200)
                devpriv->stat2 = devpriv->read_byte(dev->iobase + STAT2_REG);
 
        if ((devpriv->stat1 & (STAT1_GATA0 | STAT1_CNTINT | STAT1_OVERFLOW |
@@ -1202,8 +1201,7 @@ static irqreturn_t labpc_interrupt(int irq, void *d)
                 * has occurred
                 */
                if (devpriv->stat1 & STAT1_GATA0 ||
-                   (board->register_layout == labpc_1200_layout
-                    && devpriv->stat2 & STAT2_OUTA1)) {
+                   (board->is_labpc1200 && devpriv->stat2 & STAT2_OUTA1)) {
                        handle_isa_dma(dev);
                }
        } else
@@ -1267,7 +1265,7 @@ static int labpc_ao_insn_write(struct comedi_device *dev,
        spin_unlock_irqrestore(&dev->spinlock, flags);
 
        /* set range */
-       if (board->register_layout == labpc_1200_layout) {
+       if (board->is_labpc1200) {
                range = CR_RANGE(insn->chanspec);
                if (labpc_range_is_unipolar(s, range))
                        devpriv->cmd6 |= CMD6_DACUNI(channel);
@@ -1604,7 +1602,7 @@ int labpc_common_attach(struct comedi_device *dev,
        devpriv->write_byte(devpriv->cmd2, dev->iobase + CMD2_REG);
        devpriv->write_byte(devpriv->cmd3, dev->iobase + CMD3_REG);
        devpriv->write_byte(devpriv->cmd4, dev->iobase + CMD4_REG);
-       if (board->register_layout == labpc_1200_layout) {
+       if (board->is_labpc1200) {
                devpriv->write_byte(devpriv->cmd5, dev->iobase + CMD5_REG);
                devpriv->write_byte(devpriv->cmd6, dev->iobase + CMD6_REG);
        }
@@ -1672,7 +1670,7 @@ int labpc_common_attach(struct comedi_device *dev,
 
        /*  calibration subdevices for boards that have one */
        s = &dev->subdevices[3];
-       if (board->register_layout == labpc_1200_layout) {
+       if (board->is_labpc1200) {
                s->type         = COMEDI_SUBD_CALIB;
                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
                s->n_chan       = 16;
@@ -1687,7 +1685,7 @@ int labpc_common_attach(struct comedi_device *dev,
 
        /* EEPROM */
        s = &dev->subdevices[4];
-       if (board->register_layout == labpc_1200_layout) {
+       if (board->is_labpc1200) {
                s->type         = COMEDI_SUBD_MEMORY;
                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
                s->n_chan       = EEPROM_SIZE;

diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h
index b0327c5..f438181 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc.h
+++ b/drivers/staging/comedi/drivers/ni_labpc.h
@@ -27,26 +27,19 @@
 #define EEPROM_SIZE    256     /*  256 byte eeprom */
 #define NUM_AO_CHAN    2       /*  boards have two analog output channels */
 
-enum labpc_register_layout { labpc_plus_layout, labpc_1200_layout };
 enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
        isa_dma_transfer
 };
 
 struct labpc_boardinfo {
        const char *name;
-       int ai_speed;           /*  maximum input speed in nanoseconds */
-
-       /*  1200 has extra registers compared to pc+ */
-       enum labpc_register_layout register_layout;
-       int has_ao;             /*  has analog output true/false */
        const struct comedi_lrange *ai_range_table;
        const int *ai_range_code;
-
-       /*  board can auto scan up in ai channels, not just down */
-       unsigned ai_scan_up:1;
-
-       /* uses memory mapped io instead of ioports */
-       unsigned has_mmio:1;
+       int ai_speed;                   /* maximum input speed in ns */
+       unsigned ai_scan_up:1;          /* can auto scan up in ai channels */
+       unsigned has_ao:1;              /* has analog outputs */
+       unsigned is_labpc1200:1;        /* has extra regs compared to pc+ */
+       unsigned has_mmio:1;            /* uses memory mapped io */
 };
 
 struct labpc_private {

diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index 5f8de11..2c1ea01 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -76,11 +76,11 @@ NI manuals:
 static const struct labpc_boardinfo labpc_cs_boards[] = {
        {
                .name                   = "daqcard-1200",
-               .ai_speed               = 10000,
-               .register_layout        = labpc_1200_layout,
-               .has_ao                 = 1,
                .ai_range_table         = &range_labpc_1200_ai,
                .ai_range_code          = labpc_1200_ai_gain_bits,
+               .ai_speed               = 10000,
+               .has_ao                 = 1,
+               .is_labpc1200           = 1,
        },
 };
 

diff --git a/drivers/staging/comedi/drivers/ni_labpc_pci.c b/drivers/staging/comedi/drivers/ni_labpc_pci.c
index 8e916f8..b993b69 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc_pci.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_pci.c
@@ -49,12 +49,12 @@ enum labpc_pci_boardid {
 static const struct labpc_boardinfo labpc_pci_boards[] = {
        [BOARD_NI_PCI1200] = {
                .name                   = "ni_pci-1200",
-               .ai_speed               = 10000,
-               .register_layout        = labpc_1200_layout,
-               .has_ao                 = 1,
                .ai_range_table         = &range_labpc_1200_ai,
                .ai_range_code          = labpc_1200_ai_gain_bits,
+               .ai_speed               = 10000,
                .ai_scan_up             = 1,
+               .has_ao                 = 1,
+               .is_labpc1200           = 1,
                .has_mmio               = 1,
        },
 };