staging: comedi: amplc_pci230: Remove thisboard and devpriv macros

The 'thisboard' and 'devpriv' macros rely on a local variable having a
specific name and yield pointers derived from that local variable.
Replace the macros with local variables wherever they occur.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 512ead7..6d3c6c9 100644 (file)
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -499,11 +499,7 @@ static const struct pci230_board pci230_boards[] = {
         },
 };
 
-/*
- * Useful for shorthand access to the particular board structure
- */
 #define n_pci230_boards ARRAY_SIZE(pci230_boards)
-#define thisboard ((const struct pci230_board *)dev->board_ptr)
 
 /* this structure is for data unique to this hardware driver.  If
    several hardware drivers keep similar information in this structure,
@@ -548,8 +544,6 @@ struct pci230_private {
        unsigned char res_owner[NUM_RESOURCES]; /* Shared resource owners. */
 };
 
-#define devpriv ((struct pci230_private *)dev->private)
-
 /* PCI230 clock source periods in ns */
 static const unsigned int pci230_timebase[8] = {
        [CLK_10MHZ] = TIMEBASE_10MHZ,
@@ -627,9 +621,12 @@ static void pci230_handle_ai(struct comedi_device *dev,
 
 static short pci230_ai_read(struct comedi_device *dev)
 {
-       /* Read sample. */
-       short data = (short)inw(dev->iobase + PCI230_ADCDATA);
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv = dev->private;
+       short data;
 
+       /* Read sample. */
+       data = (short)inw(dev->iobase + PCI230_ADCDATA);
        /* PCI230 is 12 bit - stored in upper bits of 16 bit register (lower
         * four bits reserved for expansion). */
        /* PCI230+ is 16 bit AI. */
@@ -646,12 +643,14 @@ static short pci230_ai_read(struct comedi_device *dev)
 static inline unsigned short pci230_ao_mangle_datum(struct comedi_device *dev,
                                                    short datum)
 {
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv = dev->private;
+
        /* If a bipolar range was specified, mangle it (straight binary->twos
         * complement). */
        if (devpriv->ao_bipolar)
                datum ^= 1 << (thisboard->ao_bits - 1);
 
-
        /* PCI230 is 12 bit - stored in upper bits of 16 bit register (lower
         * four bits reserved for expansion). */
        /* PCI230+ is also 12 bit AO. */
@@ -662,6 +661,8 @@ static inline unsigned short pci230_ao_mangle_datum(struct comedi_device *dev,
 static inline void pci230_ao_write_nofifo(struct comedi_device *dev,
                                          short datum, unsigned int chan)
 {
+       struct pci230_private *devpriv = dev->private;
+
        /* Store unmangled datum to be read back later. */
        devpriv->ao_readback[chan] = datum;
 
@@ -675,6 +676,8 @@ static inline void pci230_ao_write_nofifo(struct comedi_device *dev,
 static inline void pci230_ao_write_fifo(struct comedi_device *dev, short datum,
                                        unsigned int chan)
 {
+       struct pci230_private *devpriv = dev->private;
+
        /* Store unmangled datum to be read back later. */
        devpriv->ao_readback[chan] = datum;
 
@@ -691,6 +694,8 @@ static inline void pci230_ao_write_fifo(struct comedi_device *dev, short datum,
  */
 static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv;
        struct comedi_subdevice *s;
        unsigned long iobase1, iobase2;
        /* PCI230's I/O spaces 1 and 2 respectively. */
@@ -704,6 +709,7 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
         * Macro defined in comedidev.h - memsets struct fields to 0. */
        if ((alloc_private(dev, sizeof(struct pci230_private))) < 0)
                return -ENOMEM;
+       devpriv = dev->private;
 
        spin_lock_init(&devpriv->isr_spinlock);
        spin_lock_init(&devpriv->res_spinlock);
@@ -742,6 +748,7 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                                        }
                                        /* Change board_ptr to matched board */
                                        dev->board_ptr = &pci230_boards[i];
+                                       thisboard = comedi_board(dev);
                                        break;
                                }
                        }
@@ -938,6 +945,9 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void pci230_detach(struct comedi_device *dev)
 {
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv = dev->private;
+
        if (dev->subdevices && thisboard->have_dio)
                subdev_8255_cleanup(dev, dev->subdevices + 2);
        if (dev->irq)
@@ -954,6 +964,7 @@ static void pci230_detach(struct comedi_device *dev)
 static int get_resources(struct comedi_device *dev, unsigned int res_mask,
                         unsigned char owner)
 {
+       struct pci230_private *devpriv = dev->private;
        int ok;
        unsigned int i;
        unsigned int b;
@@ -996,6 +1007,7 @@ static inline int get_one_resource(struct comedi_device *dev,
 static void put_resources(struct comedi_device *dev, unsigned int res_mask,
                          unsigned char owner)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned int i;
        unsigned int b;
        unsigned long irqflags;
@@ -1032,6 +1044,7 @@ static int pci230_ai_rinsn(struct comedi_device *dev,
                           struct comedi_subdevice *s, struct comedi_insn *insn,
                           unsigned int *data)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned int n, i;
        unsigned int chan, range, aref;
        unsigned int gainshift;
@@ -1136,6 +1149,7 @@ static int pci230_ao_winsn(struct comedi_device *dev,
                           struct comedi_subdevice *s, struct comedi_insn *insn,
                           unsigned int *data)
 {
+       struct pci230_private *devpriv = dev->private;
        int i;
        int chan, range;
 
@@ -1165,6 +1179,7 @@ static int pci230_ao_rinsn(struct comedi_device *dev,
                           struct comedi_subdevice *s, struct comedi_insn *insn,
                           unsigned int *data)
 {
+       struct pci230_private *devpriv = dev->private;
        int i;
        int chan = CR_CHAN(insn->chanspec);
 
@@ -1177,6 +1192,8 @@ static int pci230_ao_rinsn(struct comedi_device *dev,
 static int pci230_ao_cmdtest(struct comedi_device *dev,
                             struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv = dev->private;
        int err = 0;
        unsigned int tmp;
 
@@ -1390,6 +1407,7 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
                                        struct comedi_subdevice *s,
                                        unsigned int trig_num)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
 
        if (trig_num != 0)
@@ -1422,6 +1440,7 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
 static void pci230_ao_start(struct comedi_device *dev,
                            struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        struct comedi_async *async = s->async;
        struct comedi_cmd *cmd = &async->cmd;
        unsigned long irqflags;
@@ -1523,6 +1542,7 @@ static int pci230_ao_inttrig_start(struct comedi_device *dev,
 
 static int pci230_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned short daccon;
        unsigned int range;
 
@@ -1625,6 +1645,8 @@ static int pci230_ai_check_scan_period(struct comedi_cmd *cmd)
 static int pci230_ai_cmdtest(struct comedi_device *dev,
                             struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
+       const struct pci230_board *thisboard = comedi_board(dev);
+       struct pci230_private *devpriv = dev->private;
        int err = 0;
        unsigned int tmp;
 
@@ -2006,6 +2028,7 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 static void pci230_ai_update_fifo_trigger_level(struct comedi_device *dev,
                                                struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int scanlen = cmd->scan_end_arg;
        unsigned int wake;
@@ -2050,6 +2073,7 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev,
                                     struct comedi_subdevice *s,
                                     unsigned int trig_num)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
 
        if (trig_num != 0)
@@ -2092,6 +2116,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
                                        struct comedi_subdevice *s,
                                        unsigned int trig_num)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
        unsigned char zgat;
 
@@ -2114,6 +2139,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
 static void pci230_ai_start(struct comedi_device *dev,
                            struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
        unsigned short conv;
        struct comedi_async *async = s->async;
@@ -2264,6 +2290,7 @@ static int pci230_ai_inttrig_start(struct comedi_device *dev,
 
 static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned int i, chan, range, diff;
        unsigned int res_mask;
        unsigned short adccon, adcen;
@@ -2509,6 +2536,7 @@ static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct,
                                    unsigned int mode, uint64_t ns,
                                    unsigned int round)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned int clk_src;
        unsigned int count;
 
@@ -2527,6 +2555,8 @@ static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct,
 
 static void pci230_cancel_ct(struct comedi_device *dev, unsigned int ct)
 {
+       struct pci230_private *devpriv = dev->private;
+
        i8254_set_mode(devpriv->iobase1 + PCI230_Z2_CT_BASE, 0, ct,
                       I8254_MODE1);
        /* Counter ct, 8254 mode 1, initial count not written. */
@@ -2537,6 +2567,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 {
        unsigned char status_int, valid_status_int;
        struct comedi_device *dev = (struct comedi_device *)d;
+       struct pci230_private *devpriv = dev->private;
        struct comedi_subdevice *s;
        unsigned long irqflags;
 
@@ -2599,6 +2630,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 static void pci230_handle_ao_nofifo(struct comedi_device *dev,
                                    struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        short data;
        int i, ret;
        struct comedi_async *async = s->async;
@@ -2637,6 +2669,7 @@ static void pci230_handle_ao_nofifo(struct comedi_device *dev,
 static int pci230_handle_ao_fifo(struct comedi_device *dev,
                                 struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        struct comedi_async *async = s->async;
        struct comedi_cmd *cmd = &async->cmd;
        unsigned int num_scans;
@@ -2742,6 +2775,7 @@ static int pci230_handle_ao_fifo(struct comedi_device *dev,
 static void pci230_handle_ai(struct comedi_device *dev,
                             struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned int events = 0;
        unsigned int status_fifo;
        unsigned int i;
@@ -2842,6 +2876,7 @@ static void pci230_handle_ai(struct comedi_device *dev,
 static void pci230_ao_stop(struct comedi_device *dev,
                           struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
        unsigned char intsrc;
        int started;
@@ -2905,6 +2940,7 @@ static int pci230_ao_cancel(struct comedi_device *dev,
 static void pci230_ai_stop(struct comedi_device *dev,
                           struct comedi_subdevice *s)
 {
+       struct pci230_private *devpriv = dev->private;
        unsigned long irqflags;
        struct comedi_cmd *cmd;
        int started;