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path: root/drivers/staging/comedi/drivers/das800.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/das800.c')
-rw-r--r--drivers/staging/comedi/drivers/das800.c213
1 files changed, 107 insertions, 106 deletions
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 7a6656bf809c..70e9d699c7a3 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -62,6 +62,7 @@ cmd triggers supported:
*/
+#include <linux/interrupt.h>
#include "../comedidev.h"
#include <linux/ioport.h>
@@ -72,7 +73,7 @@ cmd triggers supported:
#define DAS800_SIZE 8
#define TIMER_BASE 1000
-#define N_CHAN_AI 8 // number of analog input channels
+#define N_CHAN_AI 8 /* number of analog input channels */
/* Registers for the das800 */
@@ -94,8 +95,8 @@ cmd triggers supported:
#define IRQ 0x8
#define BUSY 0x80
#define DAS800_GAIN 3
-#define CIO_FFOV 0x8 // fifo overflow for cio-das802/16
-#define CIO_ENHF 0x90 // interrupt fifo half full for cio-das802/16
+#define CIO_FFOV 0x8 /* fifo overflow for cio-das802/16 */
+#define CIO_ENHF 0x90 /* interrupt fifo half full for cio-das802/16 */
#define CONTROL1 0x80
#define CONV_CONTROL 0xa0
#define SCAN_LIMITS 0xc0
@@ -113,7 +114,7 @@ struct das800_board {
int resolution;
};
-//analog input ranges
+/* analog input ranges */
static const struct comedi_lrange range_das800_ai = {
1,
{
@@ -184,46 +185,46 @@ enum { das800, ciodas800, das801, ciodas801, das802, ciodas802, ciodas80216 };
static const struct das800_board das800_boards[] = {
{
- name: "das-800",
- ai_speed:25000,
- ai_range:&range_das800_ai,
- resolution:12,
+ .name = "das-800",
+ .ai_speed = 25000,
+ .ai_range = &range_das800_ai,
+ .resolution = 12,
},
{
- name: "cio-das800",
- ai_speed:20000,
- ai_range:&range_das800_ai,
- resolution:12,
+ .name = "cio-das800",
+ .ai_speed = 20000,
+ .ai_range = &range_das800_ai,
+ .resolution = 12,
},
{
- name: "das-801",
- ai_speed:25000,
- ai_range:&range_das801_ai,
- resolution:12,
+ .name = "das-801",
+ .ai_speed = 25000,
+ .ai_range = &range_das801_ai,
+ .resolution = 12,
},
{
- name: "cio-das801",
- ai_speed:20000,
- ai_range:&range_cio_das801_ai,
- resolution:12,
+ .name = "cio-das801",
+ .ai_speed = 20000,
+ .ai_range = &range_cio_das801_ai,
+ .resolution = 12,
},
{
- name: "das-802",
- ai_speed:25000,
- ai_range:&range_das802_ai,
- resolution:12,
+ .name = "das-802",
+ .ai_speed = 25000,
+ .ai_range = &range_das802_ai,
+ .resolution = 12,
},
{
- name: "cio-das802",
- ai_speed:20000,
- ai_range:&range_das802_ai,
- resolution:12,
+ .name = "cio-das802",
+ .ai_speed = 20000,
+ .ai_range = &range_das802_ai,
+ .resolution = 12,
},
{
- name: "cio-das802/16",
- ai_speed:10000,
- ai_range:&range_das80216_ai,
- resolution:16,
+ .name = "cio-das802/16",
+ .ai_speed = 10000,
+ .ai_range = &range_das80216_ai,
+ .resolution = 16,
},
};
@@ -242,47 +243,47 @@ struct das800_private {
#define devpriv ((struct das800_private *)dev->private)
-static int das800_attach(struct comedi_device * dev, struct comedi_devconfig * it);
-static int das800_detach(struct comedi_device * dev);
-static int das800_cancel(struct comedi_device * dev, struct comedi_subdevice * s);
+static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it);
+static int das800_detach(struct comedi_device *dev);
+static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s);
static struct comedi_driver driver_das800 = {
- driver_name:"das800",
- module:THIS_MODULE,
- attach:das800_attach,
- detach:das800_detach,
- num_names:sizeof(das800_boards) / sizeof(struct das800_board),
- board_name:&das800_boards[0].name,
- offset:sizeof(struct das800_board),
+ .driver_name = "das800",
+ .module = THIS_MODULE,
+ .attach = das800_attach,
+ .detach = das800_detach,
+ .num_names = ARRAY_SIZE(das800_boards),
+ .board_name = &das800_boards[0].name,
+ .offset = sizeof(struct das800_board),
};
-static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG);
-static void enable_das800(struct comedi_device * dev);
-static void disable_das800(struct comedi_device * dev);
-static int das800_ai_do_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_cmd * cmd);
-static int das800_ai_do_cmd(struct comedi_device * dev, struct comedi_subdevice * s);
-static int das800_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data);
-static int das800_di_rbits(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data);
-static int das800_do_wbits(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data);
-static int das800_probe(struct comedi_device * dev);
-static int das800_set_frequency(struct comedi_device * dev);
+static irqreturn_t das800_interrupt(int irq, void *d);
+static void enable_das800(struct comedi_device *dev);
+static void disable_das800(struct comedi_device *dev);
+static int das800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_cmd *cmd);
+static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *s);
+static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data);
+static int das800_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data);
+static int das800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data);
+static int das800_probe(struct comedi_device *dev);
+static int das800_set_frequency(struct comedi_device *dev);
/* checks and probes das-800 series board type */
-static int das800_probe(struct comedi_device * dev)
+static int das800_probe(struct comedi_device *dev)
{
int id_bits;
unsigned long irq_flags;
int board;
- // 'comedi spin lock irqsave' disables even rt interrupts, we use them to protect indirect addressing
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ /* 'comedi spin lock irqsave' disables even rt interrupts, we use them to protect indirect addressing */
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(ID, dev->iobase + DAS800_GAIN); /* select base address + 7 to be ID register */
id_bits = inb(dev->iobase + DAS800_ID) & 0x3; /* get id bits */
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
board = thisboard - das800_boards;
@@ -343,7 +344,7 @@ static int das800_probe(struct comedi_device * dev)
COMEDI_INITCLEANUP(driver_das800);
/* interrupt service routine */
-static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
+static irqreturn_t das800_interrupt(int irq, void *d)
{
short i; /* loop index */
short dataPoint = 0;
@@ -352,8 +353,8 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
struct comedi_async *async;
int status;
unsigned long irq_flags;
- static const int max_loops = 128; // half-fifo size for cio-das802/16
- // flags
+ static const int max_loops = 128; /* half-fifo size for cio-das802/16 */
+ /* flags */
int fifo_empty = 0;
int fifo_overflow = 0;
@@ -369,13 +370,13 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
*/
async = s->async;
- // if hardware conversions are not enabled, then quit
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ /* if hardware conversions are not enabled, then quit */
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select base address + 7 to be STATUS2 register */
status = inb(dev->iobase + DAS800_STATUS2) & STATUS2_HCEN;
/* don't release spinlock yet since we want to make sure noone else disables hardware conversions */
if (status == 0) {
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
return IRQ_HANDLED;
}
@@ -390,7 +391,7 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
if (fifo_overflow)
break;
} else {
- fifo_empty = 0; // cio-das802/16 has no fifo empty status bit
+ fifo_empty = 0; /* cio-das802/16 has no fifo empty status bit */
}
if (fifo_empty) {
break;
@@ -410,12 +411,12 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
/* check for fifo overflow */
if (thisboard->resolution == 12) {
fifo_overflow = dataPoint & FIFO_OVF;
- // else cio-das802/16
+ /* else cio-das802/16 */
} else {
fifo_overflow = inb(dev->iobase + DAS800_GAIN) & CIO_FFOV;
}
if (fifo_overflow) {
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
comedi_error(dev, "DAS800 FIFO overflow");
das800_cancel(dev, dev->subdevices + 0);
async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
@@ -429,10 +430,10 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be control register 1 */
outb(CONTROL1_INTE | devpriv->do_bits,
dev->iobase + DAS800_CONTROL1);
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
/* otherwise, stop taking data */
} else {
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
disable_das800(dev); /* diable hardware triggered conversions */
async->events |= COMEDI_CB_EOA;
}
@@ -441,7 +442,7 @@ static irqreturn_t das800_interrupt(int irq, void *d PT_REGS_ARG)
return IRQ_HANDLED;
}
-static int das800_attach(struct comedi_device * dev, struct comedi_devconfig * it)
+static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct comedi_subdevice *s;
unsigned long iobase = it->options[0];
@@ -484,7 +485,7 @@ static int das800_attach(struct comedi_device * dev, struct comedi_devconfig * i
return -EINVAL;
}
if (irq) {
- if (comedi_request_irq(irq, das800_interrupt, 0, "das800", dev)) {
+ if (request_irq(irq, das800_interrupt, 0, "das800", dev)) {
printk("unable to allocate irq %u\n", irq);
return -EINVAL;
}
@@ -531,15 +532,15 @@ static int das800_attach(struct comedi_device * dev, struct comedi_devconfig * i
disable_das800(dev);
/* initialize digital out channels */
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be control register 1 */
outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
return 0;
};
-static int das800_detach(struct comedi_device * dev)
+static int das800_detach(struct comedi_device *dev)
{
printk("comedi%d: das800: remove\n", dev->minor);
@@ -547,11 +548,11 @@ static int das800_detach(struct comedi_device * dev)
if (dev->iobase)
release_region(dev->iobase, DAS800_SIZE);
if (dev->irq)
- comedi_free_irq(dev->irq, dev);
+ free_irq(dev->irq, dev);
return 0;
};
-static int das800_cancel(struct comedi_device * dev, struct comedi_subdevice * s)
+static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
{
devpriv->forever = 0;
devpriv->count = 0;
@@ -560,32 +561,32 @@ static int das800_cancel(struct comedi_device * dev, struct comedi_subdevice * s
}
/* enable_das800 makes the card start taking hardware triggered conversions */
-static void enable_das800(struct comedi_device * dev)
+static void enable_das800(struct comedi_device *dev)
{
unsigned long irq_flags;
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
- // enable fifo-half full interrupts for cio-das802/16
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
+ /* enable fifo-half full interrupts for cio-das802/16 */
if (thisboard->resolution == 16)
outb(CIO_ENHF, dev->iobase + DAS800_GAIN);
outb(CONV_CONTROL, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be conversion control register */
outb(CONV_HCEN, dev->iobase + DAS800_CONV_CONTROL); /* enable hardware triggering */
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be control register 1 */
outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1); /* enable card's interrupt */
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
}
/* disable_das800 stops hardware triggered conversions */
-static void disable_das800(struct comedi_device * dev)
+static void disable_das800(struct comedi_device *dev)
{
unsigned long irq_flags;
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONV_CONTROL, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be conversion control register */
outb(0x0, dev->iobase + DAS800_CONV_CONTROL); /* disable hardware triggering of conversions */
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
}
-static int das800_ai_do_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_cmd * cmd)
+static int das800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_cmd *cmd)
{
int err = 0;
int tmp;
@@ -684,7 +685,7 @@ static int das800_ai_do_cmdtest(struct comedi_device * dev, struct comedi_subdev
if (err)
return 4;
- // check channel/gain list against card's limitations
+ /* check channel/gain list against card's limitations */
if (cmd->chanlist) {
gain = CR_RANGE(cmd->chanlist[0]);
startChan = CR_CHAN(cmd->chanlist[0]);
@@ -709,7 +710,7 @@ static int das800_ai_do_cmdtest(struct comedi_device * dev, struct comedi_subdev
return 0;
}
-static int das800_ai_do_cmd(struct comedi_device * dev, struct comedi_subdevice * s)
+static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
{
int startChan, endChan, scan, gain;
int conv_bits;
@@ -729,10 +730,10 @@ static int das800_ai_do_cmd(struct comedi_device * dev, struct comedi_subdevice
endChan = (startChan + async->cmd.chanlist_len - 1) % 8;
scan = (endChan << 3) | startChan;
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(SCAN_LIMITS, dev->iobase + DAS800_GAIN); /* select base address + 2 to be scan limits register */
outb(scan, dev->iobase + DAS800_SCAN_LIMITS); /* set scan limits */
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
/* set gain */
gain = CR_RANGE(async->cmd.chanlist[0]);
@@ -779,17 +780,17 @@ static int das800_ai_do_cmd(struct comedi_device * dev, struct comedi_subdevice
break;
}
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONV_CONTROL, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be conversion control register */
outb(conv_bits, dev->iobase + DAS800_CONV_CONTROL);
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
async->events = 0;
enable_das800(dev);
return 0;
}
-static int das800_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data)
+static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
int i, n;
int chan;
@@ -803,10 +804,10 @@ static int das800_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice *
/* set multiplexer */
chan = CR_CHAN(insn->chanspec);
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be control register 1 */
outb(chan | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
/* set gain / range */
range = CR_RANGE(insn->chanspec);
@@ -815,7 +816,7 @@ static int das800_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice *
range &= 0xf;
outb(range, dev->iobase + DAS800_GAIN);
- comedi_udelay(5);
+ udelay(5);
for (n = 0; n < insn->n; n++) {
/* trigger conversion */
@@ -842,8 +843,8 @@ static int das800_ai_rinsn(struct comedi_device * dev, struct comedi_subdevice *
return n;
}
-static int das800_di_rbits(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data)
+static int das800_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
unsigned int bits;
@@ -855,23 +856,23 @@ static int das800_di_rbits(struct comedi_device * dev, struct comedi_subdevice *
return 2;
}
-static int das800_do_wbits(struct comedi_device * dev, struct comedi_subdevice * s,
- struct comedi_insn * insn, unsigned int * data)
+static int das800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
int wbits;
unsigned long irq_flags;
- // only set bits that have been masked
+ /* only set bits that have been masked */
data[0] &= 0xf;
wbits = devpriv->do_bits >> 4;
wbits &= ~data[0];
wbits |= data[0] & data[1];
devpriv->do_bits = wbits << 4;
- comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+ spin_lock_irqsave(&dev->spinlock, irq_flags);
outb(CONTROL1, dev->iobase + DAS800_GAIN); /* select dev->iobase + 2 to be control register 1 */
outb(devpriv->do_bits | CONTROL1_INTE, dev->iobase + DAS800_CONTROL1);
- comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ spin_unlock_irqrestore(&dev->spinlock, irq_flags);
data[1] = wbits;
@@ -879,7 +880,7 @@ static int das800_do_wbits(struct comedi_device * dev, struct comedi_subdevice *
}
/* loads counters with divisor1, divisor2 from private structure */
-static int das800_set_frequency(struct comedi_device * dev)
+static int das800_set_frequency(struct comedi_device *dev)
{
int err = 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.