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Commit 0f13a8d0 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: das16: tidy up the register map defines 

Add the suffix _REG to all the register defines to better indicate
what they are.

Add a prefix to all the register bit defines to avoid namespace clashes
and to better indicate what they are.

Tidy up the whitesapce.
Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 21b8f248
Hide whitespace changes
Inline Side-by-side
Showing with 90 additions and 95 deletions
drivers/staging/comedi/drivers/das16.c
View file @ 0f13a8d0
...@@ -91,55 +91,45 @@ www.measurementcomputing.com ...@@ -91,55 +91,45 @@ www.measurementcomputing.com
/* /*
* Register I/O map * Register I/O map
*/ */
#define DAS16_TRIG 0 #define DAS16_TRIG_REG 0x00
#define DAS16_AI_LSB 0 #define DAS16_AI_LSB_REG 0x00
#define DAS16_AI_MSB 1 #define DAS16_AI_MSB_REG 0x01
#define DAS16_MUX 2 #define DAS16_MUX_REG 0x02
#define DAS16_DIO 3 #define DAS16_DIO_REG 0x03
#define DAS16_AO_LSB(x) ((x) ? 6 : 4) #define DAS16_AO_LSB_REG(x) ((x) ? 0x06 : 0x04)
#define DAS16_AO_MSB(x) ((x) ? 7 : 5) #define DAS16_AO_MSB_REG(x) ((x) ? 0x07 : 0x05)
#define DAS16_STATUS 8 #define DAS16_STATUS_REG 0x08
#define BUSY (1<<7) #define DAS16_STATUS_BUSY (1 << 7)
#define UNIPOLAR (1<<6) #define DAS16_STATUS_UNIPOLAR (1 << 6)
#define DAS16_MUXBIT (1<<5) #define DAS16_STATUS_MUXBIT (1 << 5)
#define DAS16_INT (1<<4) #define DAS16_STATUS_INT (1 << 4)
#define DAS16_CONTROL 9 #define DAS16_CTRL_REG 0x09
#define DAS16_INTE (1<<7) #define DAS16_CTRL_INTE (1 << 7)
#define DAS16_IRQ(x) (((x) & 0x7) << 4) #define DAS16_CTRL_IRQ(x) (((x) & 0x7) << 4)
#define DMA_ENABLE (1<<2) #define DAS16_CTRL_DMAE (1 << 2)
#define PACING_MASK 0x3 #define DAS16_CTRL_PACING_MASK (3 << 0)
#define INT_PACER 0x03 #define DAS16_CTRL_INT_PACER (3 << 0)
#define EXT_PACER 0x02 #define DAS16_CTRL_EXT_PACER (2 << 0)
#define DAS16_SOFT 0x00 #define DAS16_CTRL_SOFT_PACER (0 << 0)
#define DAS16_PACER 0x0A #define DAS16_PACER_REG 0x0a
#define DAS16_CTR0 (1<<1) #define DAS16_PACER_BURST_LEN(x) (((x) & 0xf) << 4)
#define DAS16_TRIG0 (1<<0) #define DAS16_PACER_CTR0 (1 << 1)
#define BURST_LEN_BITS(x) (((x) & 0xf) << 4) #define DAS16_PACER_TRIG0 (1 << 0)
#define DAS16_GAIN 0x0B #define DAS16_GAIN_REG 0x0b
#define DAS16_CNTR0_DATA 0x0C #define DAS16_TIMER_BASE_REG 0x0c /* to 0x0f */
#define DAS16_CNTR1_DATA 0x0D
#define DAS16_CNTR2_DATA 0x0E #define DAS1600_CONV_REG 0x404
#define DAS16_CNTR_CONTROL 0x0F #define DAS1600_CONV_DISABLE (1 << 6)
#define DAS16_TERM_CNT 0x00 #define DAS1600_BURST_REG 0x405
#define DAS16_ONE_SHOT 0x02 #define DAS1600_BURST_VAL (1 << 6)
#define DAS16_RATE_GEN 0x04 #define DAS1600_ENABLE_REG 0x406
#define DAS16_CNTR_LSB_MSB 0x30 #define DAS1600_ENABLE_VAL (1 << 6)
#define DAS16_CNTR0 0x00 #define DAS1600_STATUS_REG 0x407
#define DAS16_CNTR1 0x40 #define DAS1600_STATUS_BME (1 << 6)
#define DAS16_CNTR2 0x80 #define DAS1600_STATUS_ME (1 << 5)
#define DAS1600_STATUS_CD (1 << 4)
#define DAS1600_CONV 0x404 #define DAS1600_STATUS_WS (1 << 1)
#define DAS1600_CONV_DISABLE 0x40 #define DAS1600_STATUS_CLK_10MHZ (1 << 0)
#define DAS1600_BURST 0x405
#define DAS1600_BURST_VAL 0x40
#define DAS1600_ENABLE 0x406
#define DAS1600_ENABLE_VAL 0x40
#define DAS1600_STATUS_B 0x407
#define DAS1600_BME 0x40
#define DAS1600_ME 0x20
#define DAS1600_CD 0x10
#define DAS1600_WS 0x02
#define DAS1600_CLK_10MHZ 0x01
static const struct comedi_lrange range_das1x01_bip = { static const struct comedi_lrange range_das1x01_bip = {
4, { 4, {
...@@ -484,14 +474,16 @@ static void das16_ai_enable(struct comedi_device *dev, ...@@ -484,14 +474,16 @@ static void das16_ai_enable(struct comedi_device *dev,
{ {
struct das16_private_struct *devpriv = dev->private; struct das16_private_struct *devpriv = dev->private;
devpriv->ctrl_reg &= ~(DAS16_INTE | DMA_ENABLE | PACING_MASK); devpriv->ctrl_reg &= ~(DAS16_CTRL_INTE |
DAS16_CTRL_DMAE |
DAS16_CTRL_PACING_MASK);
devpriv->ctrl_reg |= mode; devpriv->ctrl_reg |= mode;
if (src == TRIG_EXT) if (src == TRIG_EXT)
devpriv->ctrl_reg |= EXT_PACER; devpriv->ctrl_reg |= DAS16_CTRL_EXT_PACER;
else else
devpriv->ctrl_reg |= INT_PACER; devpriv->ctrl_reg |= DAS16_CTRL_INT_PACER;
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CONTROL); outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
} }
static void das16_ai_disable(struct comedi_device *dev) static void das16_ai_disable(struct comedi_device *dev)
...@@ -499,8 +491,10 @@ static void das16_ai_disable(struct comedi_device *dev) ...@@ -499,8 +491,10 @@ static void das16_ai_disable(struct comedi_device *dev)
struct das16_private_struct *devpriv = dev->private; struct das16_private_struct *devpriv = dev->private;
/* disable interrupts, dma and pacer clocked conversions */ /* disable interrupts, dma and pacer clocked conversions */
devpriv->ctrl_reg &= ~(DAS16_INTE | DMA_ENABLE | PACING_MASK); devpriv->ctrl_reg &= ~(DAS16_CTRL_INTE |
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CONTROL); DAS16_CTRL_DMAE |
DAS16_CTRL_PACING_MASK);
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
} }
/* the pc104-das16jr (at least) has problems if the dma /* the pc104-das16jr (at least) has problems if the dma
...@@ -551,7 +545,7 @@ static void das16_interrupt(struct comedi_device *dev) ...@@ -551,7 +545,7 @@ static void das16_interrupt(struct comedi_device *dev)
int buffer_index; int buffer_index;
spin_lock_irqsave(&dev->spinlock, spin_flags); spin_lock_irqsave(&dev->spinlock, spin_flags);
if ((devpriv->ctrl_reg & DMA_ENABLE) == 0) { if (!(devpriv->ctrl_reg & DAS16_CTRL_DMAE)) {
spin_unlock_irqrestore(&dev->spinlock, spin_flags); spin_unlock_irqrestore(&dev->spinlock, spin_flags);
return; return;
} }
...@@ -732,14 +726,15 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns, ...@@ -732,14 +726,15 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
int rounding_flags) int rounding_flags)
{ {
struct das16_private_struct *devpriv = dev->private; struct das16_private_struct *devpriv = dev->private;
unsigned long timer_base = dev->iobase + DAS16_TIMER_BASE_REG;
i8253_cascade_ns_to_timer_2div(devpriv->clockbase, &(devpriv->divisor1), i8253_cascade_ns_to_timer_2div(devpriv->clockbase, &(devpriv->divisor1),
&(devpriv->divisor2), &ns, &(devpriv->divisor2), &ns,
rounding_flags & TRIG_ROUND_MASK); rounding_flags & TRIG_ROUND_MASK);
/* Write the values of ctr1 and ctr2 into counters 1 and 2 */ /* Write the values of ctr1 and ctr2 into counters 1 and 2 */
i8254_load(dev->iobase + DAS16_CNTR0_DATA, 0, 1, devpriv->divisor1, 2); i8254_load(timer_base, 0, 1, devpriv->divisor1, 2);
i8254_load(dev->iobase + DAS16_CNTR0_DATA, 0, 2, devpriv->divisor2, 2); i8254_load(timer_base, 0, 2, devpriv->divisor2, 2);
return ns; return ns;
} }
...@@ -764,12 +759,12 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) ...@@ -764,12 +759,12 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
cmd->stop_arg * cmd->chanlist_len * sizeof(uint16_t); cmd->stop_arg * cmd->chanlist_len * sizeof(uint16_t);
if (devpriv->can_burst) if (devpriv->can_burst)
outb(DAS1600_CONV_DISABLE, dev->iobase + DAS1600_CONV); outb(DAS1600_CONV_DISABLE, dev->iobase + DAS1600_CONV_REG);
/* set scan limits */ /* set scan limits */
byte = CR_CHAN(cmd->chanlist[0]); byte = CR_CHAN(cmd->chanlist[0]);
byte |= CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]) << 4; byte |= CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]) << 4;
outb(byte, dev->iobase + DAS16_MUX); outb(byte, dev->iobase + DAS16_MUX_REG);
/* set gain (this is also burst rate register but according to /* set gain (this is also burst rate register but according to
* computer boards manual, burst rate does nothing, even on * computer boards manual, burst rate does nothing, even on
...@@ -777,7 +772,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) ...@@ -777,7 +772,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
if (board->ai_pg != das16_pg_none) { if (board->ai_pg != das16_pg_none) {
range = CR_RANGE(cmd->chanlist[0]); range = CR_RANGE(cmd->chanlist[0]);
outb((das16_gainlists[board->ai_pg])[range], outb((das16_gainlists[board->ai_pg])[range],
dev->iobase + DAS16_GAIN); dev->iobase + DAS16_GAIN_REG);
} }
/* set counter mode and counts */ /* set counter mode and counts */
...@@ -789,14 +784,14 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) ...@@ -789,14 +784,14 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
byte = 0; byte = 0;
if (devpriv->can_burst) { if (devpriv->can_burst) {
if (cmd->convert_src == TRIG_NOW) { if (cmd->convert_src == TRIG_NOW) {
outb(DAS1600_BURST_VAL, dev->iobase + DAS1600_BURST); outb(DAS1600_BURST_VAL, dev->iobase + DAS1600_BURST_REG);
/* set burst length */ /* set burst length */
byte |= BURST_LEN_BITS(cmd->chanlist_len - 1); byte |= DAS16_PACER_BURST_LEN(cmd->chanlist_len - 1);
} else { } else {
outb(0, dev->iobase + DAS1600_BURST); outb(0, dev->iobase + DAS1600_BURST_REG);
} }
} }
outb(byte, dev->iobase + DAS16_PACER); outb(byte, dev->iobase + DAS16_PACER_REG);
/* set up dma transfer */ /* set up dma transfer */
flags = claim_dma_lock(); flags = claim_dma_lock();
...@@ -817,10 +812,10 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) ...@@ -817,10 +812,10 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
devpriv->timer.expires = jiffies + timer_period(); devpriv->timer.expires = jiffies + timer_period();
add_timer(&devpriv->timer); add_timer(&devpriv->timer);
das16_ai_enable(dev, DMA_ENABLE, cmd->convert_src); das16_ai_enable(dev, DAS16_CTRL_DMAE, cmd->convert_src);
if (devpriv->can_burst) if (devpriv->can_burst)
outb(0, dev->iobase + DAS1600_CONV); outb(0, dev->iobase + DAS1600_CONV_REG);
return 0; return 0;
} }
...@@ -842,7 +837,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s) ...@@ -842,7 +837,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
} }
if (devpriv->can_burst) if (devpriv->can_burst)
outb(0, dev->iobase + DAS1600_BURST); outb(0, dev->iobase + DAS1600_BURST_REG);
spin_unlock_irqrestore(&dev->spinlock, flags); spin_unlock_irqrestore(&dev->spinlock, flags);
...@@ -872,8 +867,8 @@ static int das16_ai_wait_for_conv(struct comedi_device *dev, ...@@ -872,8 +867,8 @@ static int das16_ai_wait_for_conv(struct comedi_device *dev,
int i; int i;
for (i = 0; i < timeout; i++) { for (i = 0; i < timeout; i++) {
status = inb(dev->iobase + DAS16_STATUS); status = inb(dev->iobase + DAS16_STATUS_REG);
if (!(status & BUSY)) if (!(status & DAS16_STATUS_BUSY))
return 0; return 0;
} }
return -ETIME; return -ETIME;
...@@ -894,24 +889,24 @@ static int das16_ai_insn_read(struct comedi_device *dev, ...@@ -894,24 +889,24 @@ static int das16_ai_insn_read(struct comedi_device *dev,
das16_ai_disable(dev); das16_ai_disable(dev);
/* set multiplexer */ /* set multiplexer */
outb(chan | (chan << 4), dev->iobase + DAS16_MUX); outb(chan | (chan << 4), dev->iobase + DAS16_MUX_REG);
/* set gain */ /* set gain */
if (board->ai_pg != das16_pg_none) { if (board->ai_pg != das16_pg_none) {
outb((das16_gainlists[board->ai_pg])[range], outb((das16_gainlists[board->ai_pg])[range],
dev->iobase + DAS16_GAIN); dev->iobase + DAS16_GAIN_REG);
} }
for (i = 0; i < insn->n; i++) { for (i = 0; i < insn->n; i++) {
/* trigger conversion */ /* trigger conversion */
outb_p(0, dev->iobase + DAS16_TRIG); outb_p(0, dev->iobase + DAS16_TRIG_REG);
ret = das16_ai_wait_for_conv(dev, 1000); ret = das16_ai_wait_for_conv(dev, 1000);
if (ret) if (ret)
return ret; return ret;
val = inb(dev->iobase + DAS16_AI_MSB) << 8; val = inb(dev->iobase + DAS16_AI_MSB_REG) << 8;
val |= inb(dev->iobase + DAS16_AI_LSB); val |= inb(dev->iobase + DAS16_AI_LSB_REG);
if (s->maxdata == 0x0fff) if (s->maxdata == 0x0fff)
val >>= 4; val >>= 4;
val &= s->maxdata; val &= s->maxdata;
...@@ -935,8 +930,8 @@ static int das16_ao_insn_write(struct comedi_device *dev, ...@@ -935,8 +930,8 @@ static int das16_ao_insn_write(struct comedi_device *dev,
val = data[i]; val = data[i];
val <<= 4; val <<= 4;
outb(val & 0xff, dev->iobase + DAS16_AO_LSB(chan)); outb(val & 0xff, dev->iobase + DAS16_AO_LSB_REG(chan));
outb((val >> 8) & 0xff, dev->iobase + DAS16_AO_MSB(chan)); outb((val >> 8) & 0xff, dev->iobase + DAS16_AO_MSB_REG(chan));
} }
return insn->n; return insn->n;
...@@ -947,7 +942,7 @@ static int das16_di_insn_bits(struct comedi_device *dev, ...@@ -947,7 +942,7 @@ static int das16_di_insn_bits(struct comedi_device *dev,
struct comedi_insn *insn, struct comedi_insn *insn,
unsigned int *data) unsigned int *data)
{ {
data[1] = inb(dev->iobase + DAS16_DIO) & 0xf; data[1] = inb(dev->iobase + DAS16_DIO_REG) & 0xf;
return insn->n; return insn->n;
} }
...@@ -964,7 +959,7 @@ static int das16_do_insn_bits(struct comedi_device *dev, ...@@ -964,7 +959,7 @@ static int das16_do_insn_bits(struct comedi_device *dev,
s->state &= ~mask; s->state &= ~mask;
s->state |= (bits & mask); s->state |= (bits & mask);
outb(s->state, dev->iobase + DAS16_DIO); outb(s->state, dev->iobase + DAS16_DIO_REG);
} }
data[1] = s->state; data[1] = s->state;
...@@ -978,7 +973,7 @@ static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it) ...@@ -978,7 +973,7 @@ static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it)
int diobits; int diobits;
/* diobits indicates boards */ /* diobits indicates boards */
diobits = inb(dev->iobase + DAS16_DIO) & 0xf0; diobits = inb(dev->iobase + DAS16_DIO_REG) & 0xf0;
printk(KERN_INFO " id bits are 0x%02x\n", diobits); printk(KERN_INFO " id bits are 0x%02x\n", diobits);
if (board->id != diobits) { if (board->id != diobits) {
...@@ -994,9 +989,9 @@ static int das1600_mode_detect(struct comedi_device *dev) ...@@ -994,9 +989,9 @@ static int das1600_mode_detect(struct comedi_device *dev)
struct das16_private_struct *devpriv = dev->private; struct das16_private_struct *devpriv = dev->private;
int status = 0; int status = 0;
status = inb(dev->iobase + DAS1600_STATUS_B); status = inb(dev->iobase + DAS1600_STATUS_REG);
if (status & DAS1600_CLK_10MHZ) { if (status & DAS1600_STATUS_CLK_10MHZ) {
devpriv->clockbase = 100; devpriv->clockbase = 100;
printk(KERN_INFO " 10MHz pacer clock\n"); printk(KERN_INFO " 10MHz pacer clock\n");
} else { } else {
...@@ -1009,10 +1004,10 @@ static int das1600_mode_detect(struct comedi_device *dev) ...@@ -1009,10 +1004,10 @@ static int das1600_mode_detect(struct comedi_device *dev)
static void das16_reset(struct comedi_device *dev) static void das16_reset(struct comedi_device *dev)
{ {
outb(0, dev->iobase + DAS16_STATUS); outb(0, dev->iobase + DAS16_STATUS_REG);
outb(0, dev->iobase + DAS16_CONTROL); outb(0, dev->iobase + DAS16_CTRL_REG);
outb(0, dev->iobase + DAS16_PACER); outb(0, dev->iobase + DAS16_PACER_REG);
outb(0, dev->iobase + DAS16_CNTR_CONTROL); outb(0, dev->iobase + DAS16_TIMER_BASE_REG + i8254_control_reg);
} }
static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
...@@ -1140,13 +1135,13 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) ...@@ -1140,13 +1135,13 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
if (ret) if (ret)
return ret; return ret;
status = inb(dev->iobase + DAS16_STATUS); status = inb(dev->iobase + DAS16_STATUS_REG);
/* Analog Input subdevice */ /* Analog Input subdevice */
s = &dev->subdevices[0]; s = &dev->subdevices[0];
s->type = COMEDI_SUBD_AI; s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE; s->subdev_flags = SDF_READABLE;
if (status & DAS16_MUXBIT) { if (status & DAS16_STATUS_MUXBIT) {
s->subdev_flags |= SDF_GROUND; s->subdev_flags |= SDF_GROUND;
s->n_chan = 16; s->n_chan = 16;
} else { } else {
...@@ -1157,7 +1152,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) ...@@ -1157,7 +1152,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->maxdata = board->ai_maxdata; s->maxdata = board->ai_maxdata;
if (devpriv->user_ai_range_table) { /* user defined ai range */ if (devpriv->user_ai_range_table) { /* user defined ai range */
s->range_table = devpriv->user_ai_range_table; s->range_table = devpriv->user_ai_range_table;
} else if (status & UNIPOLAR) { } else if (status & DAS16_STATUS_UNIPOLAR) {
s->range_table = das16_ai_uni_lranges[board->ai_pg]; s->range_table = das16_ai_uni_lranges[board->ai_pg];
} else { } else {
s->range_table = das16_ai_bip_lranges[board->ai_pg]; s->range_table = das16_ai_bip_lranges[board->ai_pg];
...@@ -1208,7 +1203,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) ...@@ -1208,7 +1203,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->insn_bits = das16_do_insn_bits; s->insn_bits = das16_do_insn_bits;
/* initialize digital output lines */ /* initialize digital output lines */
outb(s->state, dev->iobase + DAS16_DIO); outb(s->state, dev->iobase + DAS16_DIO_REG);
/* 8255 Digital I/O subdevice */ /* 8255 Digital I/O subdevice */
if (board->has_8255) { if (board->has_8255) {
...@@ -1221,13 +1216,13 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) ...@@ -1221,13 +1216,13 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
das16_reset(dev); das16_reset(dev);
/* set the interrupt level */ /* set the interrupt level */
devpriv->ctrl_reg = DAS16_IRQ(dev->irq); devpriv->ctrl_reg = DAS16_CTRL_IRQ(dev->irq);
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CONTROL); outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
if (devpriv->can_burst) { if (devpriv->can_burst) {
outb(DAS1600_ENABLE_VAL, dev->iobase + DAS1600_ENABLE); outb(DAS1600_ENABLE_VAL, dev->iobase + DAS1600_ENABLE_REG);
outb(0, dev->iobase + DAS1600_CONV); outb(0, dev->iobase + DAS1600_CONV_REG);
outb(0, dev->iobase + DAS1600_BURST); outb(0, dev->iobase + DAS1600_BURST_REG);
} }
return 0; return 0;
......
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