diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcidas.c')
-rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas.c | 173 |
1 files changed, 79 insertions, 94 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index dd0c65a..e3591a5 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -62,16 +62,14 @@ analog triggering on 1602 series */ #include <linux/module.h> -#include <linux/pci.h> #include <linux/delay.h> #include <linux/interrupt.h> -#include "../comedidev.h" +#include "../comedi_pci.h" -#include "8253.h" +#include "comedi_8254.h" #include "8255.h" #include "amcc_s5933.h" -#include "comedi_fc.h" #define AI_BUFFER_SIZE 1024 /* max ai fifo size */ #define AO_BUFFER_SIZE 1024 /* max ao fifo size */ @@ -338,14 +336,12 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = { }; struct cb_pcidas_private { + struct comedi_8254 *ao_pacer; /* base addresses */ unsigned long s5933_config; unsigned long control_status; unsigned long adc_fifo; unsigned long ao_registers; - /* divisors of master clock for analog input pacing */ - unsigned int divisor1; - unsigned int divisor2; /* bits to write to registers */ unsigned int adc_fifo_bits; unsigned int s5933_intcsr_bits; @@ -353,9 +349,6 @@ struct cb_pcidas_private { /* fifo buffers */ unsigned short ai_buffer[AI_BUFFER_SIZE]; unsigned short ao_buffer[AO_BUFFER_SIZE]; - /* divisors of master clock for analog output pacing */ - unsigned int ao_divisor1; - unsigned int ao_divisor2; unsigned int calibration_source; }; @@ -530,7 +523,7 @@ static int wait_for_nvram_ready(unsigned long s5933_base_addr) } static int nvram_read(struct comedi_device *dev, unsigned int address, - uint8_t *data) + uint8_t *data) { struct cb_pcidas_private *devpriv = dev->private; unsigned long iobase = devpriv->s5933_config; @@ -778,29 +771,28 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, struct comedi_cmd *cmd) { const struct cb_pcidas_board *thisboard = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; int err = 0; unsigned int arg; /* Step 1 : check if triggers are trivially valid */ - err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT); - err |= cfc_check_trigger_src(&cmd->scan_begin_src, + err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT); + err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT); - err |= cfc_check_trigger_src(&cmd->convert_src, + err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_NOW | TRIG_EXT); - err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); - err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); + err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); + err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); if (err) return 1; /* Step 2a : make sure trigger sources are unique */ - err |= cfc_check_trigger_is_unique(cmd->start_src); - err |= cfc_check_trigger_is_unique(cmd->scan_begin_src); - err |= cfc_check_trigger_is_unique(cmd->convert_src); - err |= cfc_check_trigger_is_unique(cmd->stop_src); + err |= comedi_check_trigger_is_unique(cmd->start_src); + err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); + err |= comedi_check_trigger_is_unique(cmd->convert_src); + err |= comedi_check_trigger_is_unique(cmd->stop_src); /* Step 2b : and mutually compatible */ @@ -819,7 +811,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, switch (cmd->start_src) { case TRIG_NOW: - err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); + err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); break; case TRIG_EXT: /* External trigger, only CR_EDGE and CR_INVERT flags allowed */ @@ -836,20 +828,24 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, break; } - if (cmd->scan_begin_src == TRIG_TIMER) - err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, - thisboard->ai_speed * cmd->chanlist_len); + if (cmd->scan_begin_src == TRIG_TIMER) { + err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, + thisboard->ai_speed * + cmd->chanlist_len); + } - if (cmd->convert_src == TRIG_TIMER) - err |= cfc_check_trigger_arg_min(&cmd->convert_arg, - thisboard->ai_speed); + if (cmd->convert_src == TRIG_TIMER) { + err |= comedi_check_trigger_arg_min(&cmd->convert_arg, + thisboard->ai_speed); + } - err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); + err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, + cmd->chanlist_len); if (cmd->stop_src == TRIG_COUNT) - err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1); + err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); else /* TRIG_NONE */ - err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); + err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); if (err) return 3; @@ -858,19 +854,13 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { arg = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, - &devpriv->divisor1, - &devpriv->divisor2, - &arg, cmd->flags); - err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg); + comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); + err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg); } if (cmd->convert_src == TRIG_TIMER) { arg = cmd->convert_arg; - i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, - &devpriv->divisor1, - &devpriv->divisor2, - &arg, cmd->flags); - err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg); + comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); + err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); } if (err) @@ -886,18 +876,6 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, return 0; } -static void cb_pcidas_ai_load_counters(struct comedi_device *dev) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned long timer_base = dev->iobase + ADC8254; - - i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY); - i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY); - - i8254_write(timer_base, 0, 1, devpriv->divisor1); - i8254_write(timer_base, 0, 2, devpriv->divisor2); -} - static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { @@ -933,8 +911,11 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, outw(bits, devpriv->control_status + ADCMUX_CONT); /* load counters */ - if (cmd->scan_begin_src == TRIG_TIMER || cmd->convert_src == TRIG_TIMER) - cb_pcidas_ai_load_counters(dev); + if (cmd->scan_begin_src == TRIG_TIMER || + cmd->convert_src == TRIG_TIMER) { + comedi_8254_update_divisors(dev->pacer); + comedi_8254_pacer_enable(dev->pacer, 1, 2, true); + } /* enable interrupts */ spin_lock_irqsave(&dev->spinlock, flags); @@ -1004,24 +985,23 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, const struct cb_pcidas_board *thisboard = dev->board_ptr; struct cb_pcidas_private *devpriv = dev->private; int err = 0; - unsigned int arg; /* Step 1 : check if triggers are trivially valid */ - err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT); - err |= cfc_check_trigger_src(&cmd->scan_begin_src, + err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT); + err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER | TRIG_EXT); - err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW); - err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); - err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); + err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW); + err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); + err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); if (err) return 1; /* Step 2a : make sure trigger sources are unique */ - err |= cfc_check_trigger_is_unique(cmd->scan_begin_src); - err |= cfc_check_trigger_is_unique(cmd->stop_src); + err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); + err |= comedi_check_trigger_is_unique(cmd->stop_src); /* Step 2b : and mutually compatible */ @@ -1030,18 +1010,20 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, /* Step 3: check if arguments are trivially valid */ - err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); + err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); - if (cmd->scan_begin_src == TRIG_TIMER) - err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, - thisboard->ao_scan_speed); + if (cmd->scan_begin_src == TRIG_TIMER) { + err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, + thisboard->ao_scan_speed); + } - err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); + err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, + cmd->chanlist_len); if (cmd->stop_src == TRIG_COUNT) - err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1); + err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); else /* TRIG_NONE */ - err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); + err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); if (err) return 3; @@ -1049,12 +1031,11 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, /* step 4: fix up any arguments */ if (cmd->scan_begin_src == TRIG_TIMER) { - arg = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, - &devpriv->ao_divisor1, - &devpriv->ao_divisor2, - &arg, cmd->flags); - err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg); + unsigned int arg = cmd->scan_begin_arg; + + comedi_8254_cascade_ns_to_timer(devpriv->ao_pacer, + &arg, cmd->flags); + err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg); } if (err) @@ -1139,18 +1120,6 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev, return 0; } -static void cb_pcidas_ao_load_counters(struct comedi_device *dev) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned long timer_base = dev->iobase + DAC8254; - - i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY); - i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY); - - i8254_write(timer_base, 0, 1, devpriv->ao_divisor1); - i8254_write(timer_base, 0, 2, devpriv->ao_divisor2); -} - static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { @@ -1180,8 +1149,10 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, outw(0, devpriv->ao_registers + DACFIFOCLR); /* load counters */ - if (cmd->scan_begin_src == TRIG_TIMER) - cb_pcidas_ao_load_counters(dev); + if (cmd->scan_begin_src == TRIG_TIMER) { + comedi_8254_update_divisors(devpriv->ao_pacer); + comedi_8254_pacer_enable(devpriv->ao_pacer, 1, 2, true); + } /* set pacer source */ spin_lock_irqsave(&dev->spinlock, flags); @@ -1408,6 +1379,17 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev, } dev->irq = pcidev->irq; + dev->pacer = comedi_8254_init(dev->iobase + ADC8254, + I8254_OSC_BASE_10MHZ, I8254_IO8, 0); + if (!dev->pacer) + return -ENOMEM; + + devpriv->ao_pacer = comedi_8254_init(dev->iobase + DAC8254, + I8254_OSC_BASE_10MHZ, + I8254_IO8, 0); + if (!devpriv->ao_pacer) + return -ENOMEM; + ret = comedi_alloc_subdevices(dev, 7); if (ret) return ret; @@ -1530,8 +1512,9 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev, dac08_write(dev, s->maxdata / 2); s->readback[i] = s->maxdata / 2; } - } else + } else { s->type = COMEDI_SUBD_UNUSED; + } /* make sure mailbox 4 is empty */ inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); @@ -1550,9 +1533,11 @@ static void cb_pcidas_detach(struct comedi_device *dev) { struct cb_pcidas_private *devpriv = dev->private; - if (devpriv && devpriv->s5933_config) { - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); + if (devpriv) { + if (devpriv->s5933_config) + outl(INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); + kfree(devpriv->ao_pacer); } comedi_pci_detach(dev); } |