#define PCI9111_DRIVER_NAME "adl_pci9111"
#define PCI9111_HR_DEVICE_ID 0x9111
-// TODO: Add other pci9111 board id
+/* TODO: Add other pci9111 board id */
#define PCI9111_IO_RANGE 0x0100
/* IO address map */
-#define PCI9111_REGISTER_AD_FIFO_VALUE 0x00 // AD Data stored in FIFO
+#define PCI9111_REGISTER_AD_FIFO_VALUE 0x00 /* AD Data stored in FIFO */
#define PCI9111_REGISTER_DA_OUTPUT 0x00
#define PCI9111_REGISTER_DIGITAL_IO 0x02
#define PCI9111_REGISTER_EXTENDED_IO_PORTS 0x04
-#define PCI9111_REGISTER_AD_CHANNEL_CONTROL 0x06 // Channel selection
+#define PCI9111_REGISTER_AD_CHANNEL_CONTROL 0x06 /* Channel selection */
#define PCI9111_REGISTER_AD_CHANNEL_READBACK 0x06
#define PCI9111_REGISTER_INPUT_SIGNAL_RANGE 0x08
#define PCI9111_REGISTER_RANGE_STATUS_READBACK 0x08
outb(data & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2); \
outb( (data >> 8) & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2)
-//
-// Function prototypes
-//
+/* Function prototypes */
static int pci9111_attach(struct comedi_device * dev, struct comedi_devconfig * it);
static int pci9111_detach(struct comedi_device * dev);
static DEFINE_PCI_DEVICE_TABLE(pci9111_pci_table) = {
{PCI_VENDOR_ID_ADLINK, PCI9111_HR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0,
0, 0},
- //{ PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ /* { PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
{0}
};
MODULE_DEVICE_TABLE(pci, pci9111_pci_table);
-//
-// Board specification structure
-//
+/* */
+/* Board specification structure */
+/* */
struct pci9111_board {
- const char *name; // driver name
+ const char *name; /* driver name */
int device_id;
- int ai_channel_nbr; // num of A/D chans
- int ao_channel_nbr; // num of D/A chans
- int ai_resolution; // resolution of A/D
+ int ai_channel_nbr; /* num of A/D chans */
+ int ao_channel_nbr; /* num of D/A chans */
+ int ai_resolution; /* resolution of A/D */
int ai_resolution_mask;
- int ao_resolution; // resolution of D/A
+ int ao_resolution; /* resolution of D/A */
int ao_resolution_mask;
- const struct comedi_lrange *ai_range_list; // rangelist for A/D
- const struct comedi_lrange *ao_range_list; // rangelist for D/A
+ const struct comedi_lrange *ai_range_list; /* rangelist for A/D */
+ const struct comedi_lrange *ao_range_list; /* rangelist for D/A */
unsigned int ai_acquisition_period_min_ns;
};
COMEDI_PCI_INITCLEANUP(pci9111_driver, pci9111_pci_table);
-//
-// Private data structure
-//
+/* Private data structure */
struct pci9111_private_data {
struct pci_dev *pci_device;
- unsigned long io_range; // PCI6503 io range
+ unsigned long io_range; /* PCI6503 io range */
- unsigned long lcr_io_base; // Local configuration register base address
+ unsigned long lcr_io_base; /* Local configuration register base address */
unsigned long lcr_io_range;
int stop_counter;
unsigned int chunk_counter;
unsigned int chunk_num_samples;
- int ao_readback; // Last written analog output data
+ int ao_readback; /* Last written analog output data */
- int timer_divisor_1; // Divisor values for the 8254 timer pacer
+ int timer_divisor_1; /* Divisor values for the 8254 timer pacer */
int timer_divisor_2;
- int is_valid; // Is device valid
+ int is_valid; /* Is device valid */
short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
};
#define dev_private ((struct pci9111_private_data *)dev->private)
-// ------------------------------------------------------------------
-//
-// PLX9050 SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* PLX9050 SECTION */
+/* ------------------------------------------------------------------ */
#define PLX9050_REGISTER_INTERRUPT_CONTROL 0x4c
outb(flags, io_base + PLX9050_REGISTER_INTERRUPT_CONTROL);
}
-// ------------------------------------------------------------------
-//
-// MISCELLANEOUS SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* MISCELLANEOUS SECTION */
+/* ------------------------------------------------------------------ */
-//
-// 8254 timer
-//
+/* 8254 timer */
static void pci9111_timer_set(struct comedi_device * dev)
{
irq_on_fifo_half_full
};
-typedef enum {
+enum pci9111_ISC1_sources {
irq_on_timer_tick,
irq_on_external_trigger
-} pci9111_ISC1_sources;
+};
static void pci9111_interrupt_source_set(struct comedi_device * dev,
- enum pci9111_ISC0_sources irq_0_source, pci9111_ISC1_sources irq_1_source)
+ enum pci9111_ISC0_sources irq_0_source, enum pci9111_ISC1_sources irq_1_source)
{
int flags;
pci9111_interrupt_and_fifo_set(flags);
}
-// ------------------------------------------------------------------
-//
-// HARDWARE TRIGGERED ANALOG INPUT SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* HARDWARE TRIGGERED ANALOG INPUT SECTION */
+/* ------------------------------------------------------------------ */
-//
-// Cancel analog input autoscan
-//
+/* Cancel analog input autoscan */
#undef AI_DO_CMD_DEBUG
static int pci9111_ai_cancel(struct comedi_device * dev, struct comedi_subdevice * s)
{
- // Disable interrupts
+ /* Disable interrupts */
plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
true, false);
return 0;
}
-//
-// Test analog input command
-//
+/* Test analog input command */
#define pci9111_check_trigger_src(src,flags) \
tmp = src; \
int i;
struct pci9111_board *board = (struct pci9111_board *) dev->board_ptr;
- // Step 1 : check if trigger are trivialy valid
+ /* Step 1 : check if trigger are trivialy valid */
pci9111_check_trigger_src(cmd->start_src, TRIG_NOW);
pci9111_check_trigger_src(cmd->scan_begin_src,
if (error)
return 1;
- // step 2 : make sure trigger sources are unique and mutually compatible
+ /* step 2 : make sure trigger sources are unique and mutually compatible */
if (cmd->start_src != TRIG_NOW)
error++;
if (error)
return 2;
- // Step 3 : make sure arguments are trivialy compatible
+ /* Step 3 : make sure arguments are trivialy compatible */
if (cmd->chanlist_len < 1) {
cmd->chanlist_len = 1;
if (error)
return 3;
- // Step 4 : fix up any arguments
+ /* Step 4 : fix up any arguments */
if (cmd->convert_src == TRIG_TIMER) {
tmp = cmd->convert_arg;
if (tmp != cmd->convert_arg)
error++;
}
- // There's only one timer on this card, so the scan_begin timer must
- // be a multiple of chanlist_len*convert_arg
+ /* There's only one timer on this card, so the scan_begin timer must */
+ /* be a multiple of chanlist_len*convert_arg */
if (cmd->scan_begin_src == TRIG_TIMER) {
if (error)
return 4;
- // Step 5 : check channel list
+ /* Step 5 : check channel list */
if (cmd->chanlist) {
}
-//
-// Analog input command
-//
+/* Analog input command */
static int pci9111_ai_do_cmd(struct comedi_device * dev, struct comedi_subdevice * subdevice)
{
"no irq assigned for PCI9111, cannot do hardware conversion");
return -1;
}
- // Set channel scan limit
- //
- // PCI9111 allows only scanning from channel 0 to channel n
- //
- // TODO: handle the case of an external multiplexer
- //
+ /* Set channel scan limit */
+ /* PCI9111 allows only scanning from channel 0 to channel n */
+ /* TODO: handle the case of an external multiplexer */
if (async_cmd->chanlist_len > 1) {
pci9111_ai_channel_set((async_cmd->chanlist_len) - 1);
pci9111_autoscan_set(dev, false);
}
- // Set gain
- //
- // This is the same gain on every channel
- //
+ /* Set gain */
+ /* This is the same gain on every channel */
pci9111_ai_range_set(CR_RANGE(async_cmd->chanlist[0]));
return -1;
}
- // Set timer pacer
+ /* Set timer pacer */
dev_private->scan_delay = 0;
switch (async_cmd->convert_src) {
}
}
-// ------------------------------------------------------------------
-//
-// INTERRUPT SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* INTERRUPT SECTION */
+/* ------------------------------------------------------------------ */
#undef INTERRUPT_DEBUG
unsigned char intcsr;
if (!dev->attached) {
- // Ignore interrupt before device fully attached.
- // Might not even have allocated subdevices yet!
+ /* Ignore interrupt before device fully attached. */
+ /* Might not even have allocated subdevices yet! */
return IRQ_NONE;
}
comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
- // Check if we are source of interrupt
+ /* Check if we are source of interrupt */
intcsr = inb(dev_private->lcr_io_base +
PLX9050_REGISTER_INTERRUPT_CONTROL);
if (!(((intcsr & PLX9050_PCI_INTERRUPT_ENABLE) != 0)
==
(PLX9050_LINTI2_ENABLE |
PLX9050_LINTI2_STATUS))))) {
- // Not the source of the interrupt.
- // (N.B. not using PLX9050_SOFTWARE_INTERRUPT)
+ /* Not the source of the interrupt. */
+ /* (N.B. not using PLX9050_SOFTWARE_INTERRUPT) */
comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
return IRQ_NONE;
}
if ((intcsr & (PLX9050_LINTI1_ENABLE | PLX9050_LINTI1_STATUS)) ==
(PLX9050_LINTI1_ENABLE | PLX9050_LINTI1_STATUS)) {
- // Interrupt comes from fifo_half-full signal
+ /* Interrupt comes from fifo_half-full signal */
if (pci9111_is_fifo_full()) {
comedi_spin_unlock_irqrestore(&dev->spinlock,
return IRQ_HANDLED;
}
-// ------------------------------------------------------------------
-//
-// INSTANT ANALOG INPUT OUTPUT SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* INSTANT ANALOG INPUT OUTPUT SECTION */
+/* ------------------------------------------------------------------ */
-//
-// analog instant input
-//
+/* analog instant input */
#undef AI_INSN_DEBUG
return i;
}
-//
-// Analog instant output
-//
+/* Analog instant output */
static int
pci9111_ao_insn_write(struct comedi_device * dev,
return i;
}
-//
-// Analog output readback
-//
+/* Analog output readback */
static int pci9111_ao_insn_read(struct comedi_device * dev,
struct comedi_subdevice * s, struct comedi_insn * insn, unsigned int * data)
return i;
}
-// ------------------------------------------------------------------
-//
-// DIGITAL INPUT OUTPUT SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* DIGITAL INPUT OUTPUT SECTION */
+/* ------------------------------------------------------------------ */
-//
-// Digital inputs
-//
+/* Digital inputs */
static int pci9111_di_insn_bits(struct comedi_device * dev,
struct comedi_subdevice * subdevice, struct comedi_insn * insn, unsigned int * data)
return 2;
}
-//
-// Digital outputs
-//
+/* Digital outputs */
static int pci9111_do_insn_bits(struct comedi_device * dev,
struct comedi_subdevice * subdevice, struct comedi_insn * insn, unsigned int * data)
{
unsigned int bits;
- // Only set bits that have been masked
- // data[0] = mask
- // data[1] = bit state
+ /* Only set bits that have been masked */
+ /* data[0] = mask */
+ /* data[1] = bit state */
data[0] &= PCI9111_DO_MASK;
return 2;
}
-// ------------------------------------------------------------------
-//
-// INITIALISATION SECTION
-//
-// ------------------------------------------------------------------
+/* ------------------------------------------------------------------ */
+/* INITIALISATION SECTION */
+/* ------------------------------------------------------------------ */
-//
-// Reset device
-//
+/* Reset device */
static int pci9111_reset(struct comedi_device * dev)
{
- // Set trigger source to software
+ /* Set trigger source to software */
plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
true, false);
pci9111_pretrigger_set(dev, false);
pci9111_autoscan_set(dev, false);
- // Reset 8254 chip
+ /* Reset 8254 chip */
dev_private->timer_divisor_1 = 0;
dev_private->timer_divisor_2 = 0;
return 0;
}
-//
-// Attach
-//
-// - Register PCI device
-// - Declare device driver capability
-//
+/* Attach */
+/* - Register PCI device */
+/* - Declare device driver capability */
static int pci9111_attach(struct comedi_device * dev, struct comedi_devconfig * it)
{
if (alloc_private(dev, sizeof(struct pci9111_private_data)) < 0) {
return -ENOMEM;
}
- //
- // Probe the device to determine what device in the series it is.
- //
+ /* Probe the device to determine what device in the series it is. */
printk("comedi%d: " PCI9111_DRIVER_NAME " driver\n", dev->minor);
for (i = 0; i < pci9111_board_nbr; i++) {
if (pci9111_boards[i].device_id ==
pci_device->device) {
- // was a particular bus/slot requested?
+ /* was a particular bus/slot requested? */
if ((it->options[0] != 0)
|| (it->options[1] != 0)) {
- // are we on the wrong bus/slot?
+ /* are we on the wrong bus/slot? */
if (pci_device->bus->number !=
it->options[0]
|| PCI_SLOT(pci_device->
PCI_SLOT(pci_device->devfn),
PCI_FUNC(pci_device->devfn), pci_device->irq);
- // TODO: Warn about non-tested boards.
+ /* TODO: Warn about non-tested boards. */
switch (board->device_id) {
};
- // Read local configuration register base address [PCI_BASE_ADDRESS #1].
+ /* Read local configuration register base address [PCI_BASE_ADDRESS #1]. */
lcr_io_base = pci_resource_start(pci_device, 1);
lcr_io_range = pci_resource_len(pci_device, 1);
printk("comedi%d: local configuration registers at address 0x%4lx [0x%4lx]\n", dev->minor, lcr_io_base, lcr_io_range);
- // Enable PCI device and request regions
+ /* Enable PCI device and request regions */
if (comedi_pci_enable(pci_device, PCI9111_DRIVER_NAME) < 0) {
printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor);
return -EIO;
}
- // Read PCI6308 register base address [PCI_BASE_ADDRESS #2].
+ /* Read PCI6308 register base address [PCI_BASE_ADDRESS #2]. */
io_base = pci_resource_start(pci_device, 2);
io_range = pci_resource_len(pci_device, 2);
pci9111_reset(dev);
- // Irq setup
+ /* Irq setup */
dev->irq = 0;
if (pci_device->irq > 0) {
}
dev->irq = pci_device->irq;
- //
- // TODO: Add external multiplexer setup (according to option[2]).
- //
+ /* TODO: Add external multiplexer setup (according to option[2]). */
if ((error = alloc_subdevices(dev, 4)) < 0)
return error;
subdevice->type = COMEDI_SUBD_AI;
subdevice->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
- //
- // TODO: Add external multiplexer data
- //
- // if (devpriv->usemux) { subdevice->n_chan = devpriv->usemux; }
- // else { subdevice->n_chan = this_board->n_aichan; }
- //
+ /* TODO: Add external multiplexer data */
+ /* if (devpriv->usemux) { subdevice->n_chan = devpriv->usemux; } */
+ /* else { subdevice->n_chan = this_board->n_aichan; } */
subdevice->n_chan = board->ai_channel_nbr;
subdevice->maxdata = board->ai_resolution_mask;
return 0;
}
-//
-// Detach
-//
+/* Detach */
static int pci9111_detach(struct comedi_device * dev)
{
- // Reset device
+ /* Reset device */
if (dev->private != 0) {
if (dev_private->is_valid)
pci9111_reset(dev);
}
- // Release previously allocated irq
+ /* Release previously allocated irq */
if (dev->irq != 0) {
comedi_free_irq(dev->irq, dev);
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