| /* |
| comedi/drivers/cb_pcidda.c |
| This intends to be a driver for the ComputerBoards / MeasurementComputing |
| PCI-DDA series. |
| |
| Copyright (C) 2001 Ivan Martinez <ivanmr@altavista.com> |
| Copyright (C) 2001 Frank Mori Hess <fmhess@users.sourceforge.net> |
| |
| COMEDI - Linux Control and Measurement Device Interface |
| Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| |
| */ |
| /* |
| Driver: cb_pcidda |
| Description: MeasurementComputing PCI-DDA series |
| Author: Ivan Martinez <ivanmr@altavista.com>, Frank Mori Hess <fmhess@users.sourceforge.net> |
| Status: Supports 08/16, 04/16, 02/16, 08/12, 04/12, and 02/12 |
| Devices: [Measurement Computing] PCI-DDA08/12 (cb_pcidda), PCI-DDA04/12, |
| PCI-DDA02/12, PCI-DDA08/16, PCI-DDA04/16, PCI-DDA02/16 |
| |
| Configuration options: |
| [0] - PCI bus of device (optional) |
| [1] - PCI slot of device (optional) |
| If bus/slot is not specified, the first available PCI |
| device will be used. |
| |
| Only simple analog output writing is supported. |
| |
| So far it has only been tested with: |
| - PCI-DDA08/12 |
| Please report success/failure with other different cards to |
| <comedi@comedi.org>. |
| */ |
| |
| #include "../comedidev.h" |
| |
| #include "comedi_fc.h" |
| #include "8255.h" |
| |
| /* PCI vendor number of ComputerBoards */ |
| #define PCI_VENDOR_ID_CB 0x1307 |
| #define EEPROM_SIZE 128 /* number of entries in eeprom */ |
| /* maximum number of ao channels for supported boards */ |
| #define MAX_AO_CHANNELS 8 |
| |
| /* Digital I/O registers */ |
| #define PORT1A 0 /* PORT 1A DATA */ |
| |
| #define PORT1B 1 /* PORT 1B DATA */ |
| |
| #define PORT1C 2 /* PORT 1C DATA */ |
| |
| #define CONTROL1 3 /* CONTROL REGISTER 1 */ |
| |
| #define PORT2A 4 /* PORT 2A DATA */ |
| |
| #define PORT2B 5 /* PORT 2B DATA */ |
| |
| #define PORT2C 6 /* PORT 2C DATA */ |
| |
| #define CONTROL2 7 /* CONTROL REGISTER 2 */ |
| |
| /* DAC registers */ |
| #define DACONTROL 0 /* D/A CONTROL REGISTER */ |
| #define SU 0000001 /* Simultaneous update enabled */ |
| #define NOSU 0000000 /* Simultaneous update disabled */ |
| #define ENABLEDAC 0000002 /* Enable specified DAC */ |
| #define DISABLEDAC 0000000 /* Disable specified DAC */ |
| #define RANGE2V5 0000000 /* 2.5V */ |
| #define RANGE5V 0000200 /* 5V */ |
| #define RANGE10V 0000300 /* 10V */ |
| #define UNIP 0000400 /* Unipolar outputs */ |
| #define BIP 0000000 /* Bipolar outputs */ |
| |
| #define DACALIBRATION1 4 /* D/A CALIBRATION REGISTER 1 */ |
| /* write bits */ |
| /* serial data input for eeprom, caldacs, reference dac */ |
| #define SERIAL_IN_BIT 0x1 |
| #define CAL_CHANNEL_MASK (0x7 << 1) |
| #define CAL_CHANNEL_BITS(channel) (((channel) << 1) & CAL_CHANNEL_MASK) |
| /* read bits */ |
| #define CAL_COUNTER_MASK 0x1f |
| /* calibration counter overflow status bit */ |
| #define CAL_COUNTER_OVERFLOW_BIT 0x20 |
| /* analog output is less than reference dac voltage */ |
| #define AO_BELOW_REF_BIT 0x40 |
| #define SERIAL_OUT_BIT 0x80 /* serial data out, for reading from eeprom */ |
| |
| #define DACALIBRATION2 6 /* D/A CALIBRATION REGISTER 2 */ |
| #define SELECT_EEPROM_BIT 0x1 /* send serial data in to eeprom */ |
| /* don't send serial data to MAX542 reference dac */ |
| #define DESELECT_REF_DAC_BIT 0x2 |
| /* don't send serial data to caldac n */ |
| #define DESELECT_CALDAC_BIT(n) (0x4 << (n)) |
| /* manual says to set this bit with no explanation */ |
| #define DUMMY_BIT 0x40 |
| |
| #define DADATA 8 /* FIRST D/A DATA REGISTER (0) */ |
| |
| static const struct comedi_lrange cb_pcidda_ranges = { |
| 6, |
| { |
| BIP_RANGE(10), |
| BIP_RANGE(5), |
| BIP_RANGE(2.5), |
| UNI_RANGE(10), |
| UNI_RANGE(5), |
| UNI_RANGE(2.5), |
| } |
| }; |
| |
| /* |
| * Board descriptions for two imaginary boards. Describing the |
| * boards in this way is optional, and completely driver-dependent. |
| * Some drivers use arrays such as this, other do not. |
| */ |
| struct cb_pcidda_board { |
| const char *name; |
| char status; /* Driver status: */ |
| |
| /* |
| * 0 - tested |
| * 1 - manual read, not tested |
| * 2 - manual not read |
| */ |
| |
| unsigned short device_id; |
| int ao_chans; |
| int ao_bits; |
| const struct comedi_lrange *ranges; |
| }; |
| |
| static const struct cb_pcidda_board cb_pcidda_boards[] = { |
| { |
| .name = "pci-dda02/12", |
| .status = 1, |
| .device_id = 0x20, |
| .ao_chans = 2, |
| .ao_bits = 12, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| { |
| .name = "pci-dda04/12", |
| .status = 1, |
| .device_id = 0x21, |
| .ao_chans = 4, |
| .ao_bits = 12, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| { |
| .name = "pci-dda08/12", |
| .status = 0, |
| .device_id = 0x22, |
| .ao_chans = 8, |
| .ao_bits = 12, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| { |
| .name = "pci-dda02/16", |
| .status = 2, |
| .device_id = 0x23, |
| .ao_chans = 2, |
| .ao_bits = 16, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| { |
| .name = "pci-dda04/16", |
| .status = 2, |
| .device_id = 0x24, |
| .ao_chans = 4, |
| .ao_bits = 16, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| { |
| .name = "pci-dda08/16", |
| .status = 0, |
| .device_id = 0x25, |
| .ao_chans = 8, |
| .ao_bits = 16, |
| .ranges = &cb_pcidda_ranges, |
| }, |
| }; |
| |
| /* |
| * this structure is for data unique to this hardware driver. If |
| * several hardware drivers keep similar information in this structure, |
| * feel free to suggest moving the variable to the struct comedi_device |
| * struct. |
| */ |
| struct cb_pcidda_private { |
| int data; |
| |
| unsigned long digitalio; |
| unsigned long dac; |
| |
| /* unsigned long control_status; */ |
| /* unsigned long adc_fifo; */ |
| |
| /* bits last written to da calibration register 1 */ |
| unsigned int dac_cal1_bits; |
| /* current range settings for output channels */ |
| unsigned int ao_range[MAX_AO_CHANNELS]; |
| u16 eeprom_data[EEPROM_SIZE]; /* software copy of board's eeprom */ |
| }; |
| |
| /* |
| * I will program this later... ;-) |
| */ |
| #if 0 |
| static int cb_pcidda_ai_cmd(struct comedi_device *dev, |
| struct comedi_subdevice *s) |
| { |
| printk("cb_pcidda_ai_cmd\n"); |
| printk("subdev: %d\n", cmd->subdev); |
| printk("flags: %d\n", cmd->flags); |
| printk("start_src: %d\n", cmd->start_src); |
| printk("start_arg: %d\n", cmd->start_arg); |
| printk("scan_begin_src: %d\n", cmd->scan_begin_src); |
| printk("convert_src: %d\n", cmd->convert_src); |
| printk("convert_arg: %d\n", cmd->convert_arg); |
| printk("scan_end_src: %d\n", cmd->scan_end_src); |
| printk("scan_end_arg: %d\n", cmd->scan_end_arg); |
| printk("stop_src: %d\n", cmd->stop_src); |
| printk("stop_arg: %d\n", cmd->stop_arg); |
| printk("chanlist_len: %d\n", cmd->chanlist_len); |
| } |
| #endif |
| |
| #if 0 |
| static int cb_pcidda_ai_cmdtest(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_cmd *cmd) |
| { |
| int err = 0; |
| int tmp; |
| |
| /* Step 1 : check if triggers are trivially valid */ |
| |
| err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW); |
| err |= cfc_check_trigger_src(&cmd->scan_begin_src, |
| TRIG_TIMER | TRIG_EXT); |
| err |= cfc_check_trigger_src(&cmd->convert_src, |
| TRIG_TIMER | 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); |
| |
| 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->convert_src); |
| err |= cfc_check_trigger_is_unique(cmd->stop_src); |
| |
| /* Step 2b : and mutually compatible */ |
| |
| if (err) |
| return 2; |
| |
| /* step 3: make sure arguments are trivially compatible */ |
| |
| if (cmd->start_arg != 0) { |
| cmd->start_arg = 0; |
| err++; |
| } |
| #define MAX_SPEED 10000 /* in nanoseconds */ |
| #define MIN_SPEED 1000000000 /* in nanoseconds */ |
| |
| if (cmd->scan_begin_src == TRIG_TIMER) { |
| if (cmd->scan_begin_arg < MAX_SPEED) { |
| cmd->scan_begin_arg = MAX_SPEED; |
| err++; |
| } |
| if (cmd->scan_begin_arg > MIN_SPEED) { |
| cmd->scan_begin_arg = MIN_SPEED; |
| err++; |
| } |
| } else { |
| /* external trigger */ |
| /* should be level/edge, hi/lo specification here */ |
| /* should specify multiple external triggers */ |
| if (cmd->scan_begin_arg > 9) { |
| cmd->scan_begin_arg = 9; |
| err++; |
| } |
| } |
| if (cmd->convert_src == TRIG_TIMER) { |
| if (cmd->convert_arg < MAX_SPEED) { |
| cmd->convert_arg = MAX_SPEED; |
| err++; |
| } |
| if (cmd->convert_arg > MIN_SPEED) { |
| cmd->convert_arg = MIN_SPEED; |
| err++; |
| } |
| } else { |
| /* external trigger */ |
| /* see above */ |
| if (cmd->convert_arg > 9) { |
| cmd->convert_arg = 9; |
| err++; |
| } |
| } |
| |
| if (cmd->scan_end_arg != cmd->chanlist_len) { |
| cmd->scan_end_arg = cmd->chanlist_len; |
| err++; |
| } |
| if (cmd->stop_src == TRIG_COUNT) { |
| if (cmd->stop_arg > 0x00ffffff) { |
| cmd->stop_arg = 0x00ffffff; |
| err++; |
| } |
| } else { |
| /* TRIG_NONE */ |
| if (cmd->stop_arg != 0) { |
| cmd->stop_arg = 0; |
| err++; |
| } |
| } |
| |
| if (err) |
| return 3; |
| |
| /* step 4: fix up any arguments */ |
| |
| if (cmd->scan_begin_src == TRIG_TIMER) { |
| tmp = cmd->scan_begin_arg; |
| cb_pcidda_ns_to_timer(&cmd->scan_begin_arg, |
| cmd->flags & TRIG_ROUND_MASK); |
| if (tmp != cmd->scan_begin_arg) |
| err++; |
| } |
| if (cmd->convert_src == TRIG_TIMER) { |
| tmp = cmd->convert_arg; |
| cb_pcidda_ns_to_timer(&cmd->convert_arg, |
| cmd->flags & TRIG_ROUND_MASK); |
| if (tmp != cmd->convert_arg) |
| err++; |
| if (cmd->scan_begin_src == TRIG_TIMER && |
| cmd->scan_begin_arg < |
| cmd->convert_arg * cmd->scan_end_arg) { |
| cmd->scan_begin_arg = |
| cmd->convert_arg * cmd->scan_end_arg; |
| err++; |
| } |
| } |
| |
| if (err) |
| return 4; |
| |
| return 0; |
| } |
| #endif |
| |
| /* This function doesn't require a particular form, this is just |
| * what happens to be used in some of the drivers. It should |
| * convert ns nanoseconds to a counter value suitable for programming |
| * the device. Also, it should adjust ns so that it cooresponds to |
| * the actual time that the device will use. */ |
| #if 0 |
| static int cb_pcidda_ns_to_timer(unsigned int *ns, int round) |
| { |
| /* trivial timer */ |
| return *ns; |
| } |
| #endif |
| |
| /* lowlevel read from eeprom */ |
| static unsigned int cb_pcidda_serial_in(struct comedi_device *dev) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| unsigned int value = 0; |
| int i; |
| const int value_width = 16; /* number of bits wide values are */ |
| |
| for (i = 1; i <= value_width; i++) { |
| /* read bits most significant bit first */ |
| if (inw_p(devpriv->dac + DACALIBRATION1) & SERIAL_OUT_BIT) |
| value |= 1 << (value_width - i); |
| } |
| |
| return value; |
| } |
| |
| /* lowlevel write to eeprom/dac */ |
| static void cb_pcidda_serial_out(struct comedi_device *dev, unsigned int value, |
| unsigned int num_bits) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| int i; |
| |
| for (i = 1; i <= num_bits; i++) { |
| /* send bits most significant bit first */ |
| if (value & (1 << (num_bits - i))) |
| devpriv->dac_cal1_bits |= SERIAL_IN_BIT; |
| else |
| devpriv->dac_cal1_bits &= ~SERIAL_IN_BIT; |
| outw_p(devpriv->dac_cal1_bits, devpriv->dac + DACALIBRATION1); |
| } |
| } |
| |
| /* reads a 16 bit value from board's eeprom */ |
| static unsigned int cb_pcidda_read_eeprom(struct comedi_device *dev, |
| unsigned int address) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| unsigned int i; |
| unsigned int cal2_bits; |
| unsigned int value; |
| /* one caldac for every two dac channels */ |
| const int max_num_caldacs = 4; |
| /* bits to send to tell eeprom we want to read */ |
| const int read_instruction = 0x6; |
| const int instruction_length = 3; |
| const int address_length = 8; |
| |
| /* send serial output stream to eeprom */ |
| cal2_bits = SELECT_EEPROM_BIT | DESELECT_REF_DAC_BIT | DUMMY_BIT; |
| /* deactivate caldacs (one caldac for every two channels) */ |
| for (i = 0; i < max_num_caldacs; i++) |
| cal2_bits |= DESELECT_CALDAC_BIT(i); |
| outw_p(cal2_bits, devpriv->dac + DACALIBRATION2); |
| |
| /* tell eeprom we want to read */ |
| cb_pcidda_serial_out(dev, read_instruction, instruction_length); |
| /* send address we want to read from */ |
| cb_pcidda_serial_out(dev, address, address_length); |
| |
| value = cb_pcidda_serial_in(dev); |
| |
| /* deactivate eeprom */ |
| cal2_bits &= ~SELECT_EEPROM_BIT; |
| outw_p(cal2_bits, devpriv->dac + DACALIBRATION2); |
| |
| return value; |
| } |
| |
| /* writes to 8 bit calibration dacs */ |
| static void cb_pcidda_write_caldac(struct comedi_device *dev, |
| unsigned int caldac, unsigned int channel, |
| unsigned int value) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| unsigned int cal2_bits; |
| unsigned int i; |
| /* caldacs use 3 bit channel specification */ |
| const int num_channel_bits = 3; |
| const int num_caldac_bits = 8; /* 8 bit calibration dacs */ |
| /* one caldac for every two dac channels */ |
| const int max_num_caldacs = 4; |
| |
| /* write 3 bit channel */ |
| cb_pcidda_serial_out(dev, channel, num_channel_bits); |
| /* write 8 bit caldac value */ |
| cb_pcidda_serial_out(dev, value, num_caldac_bits); |
| |
| /* |
| * latch stream into appropriate caldac deselect reference dac |
| */ |
| cal2_bits = DESELECT_REF_DAC_BIT | DUMMY_BIT; |
| /* deactivate caldacs (one caldac for every two channels) */ |
| for (i = 0; i < max_num_caldacs; i++) |
| cal2_bits |= DESELECT_CALDAC_BIT(i); |
| /* activate the caldac we want */ |
| cal2_bits &= ~DESELECT_CALDAC_BIT(caldac); |
| outw_p(cal2_bits, devpriv->dac + DACALIBRATION2); |
| /* deactivate caldac */ |
| cal2_bits |= DESELECT_CALDAC_BIT(caldac); |
| outw_p(cal2_bits, devpriv->dac + DACALIBRATION2); |
| } |
| |
| /* returns caldac that calibrates given analog out channel */ |
| static unsigned int caldac_number(unsigned int channel) |
| { |
| return channel / 2; |
| } |
| |
| /* returns caldac channel that provides fine gain for given ao channel */ |
| static unsigned int fine_gain_channel(unsigned int ao_channel) |
| { |
| return 4 * (ao_channel % 2); |
| } |
| |
| /* returns caldac channel that provides coarse gain for given ao channel */ |
| static unsigned int coarse_gain_channel(unsigned int ao_channel) |
| { |
| return 1 + 4 * (ao_channel % 2); |
| } |
| |
| /* returns caldac channel that provides coarse offset for given ao channel */ |
| static unsigned int coarse_offset_channel(unsigned int ao_channel) |
| { |
| return 2 + 4 * (ao_channel % 2); |
| } |
| |
| /* returns caldac channel that provides fine offset for given ao channel */ |
| static unsigned int fine_offset_channel(unsigned int ao_channel) |
| { |
| return 3 + 4 * (ao_channel % 2); |
| } |
| |
| /* returns eeprom address that provides offset for given ao channel and range */ |
| static unsigned int offset_eeprom_address(unsigned int ao_channel, |
| unsigned int range) |
| { |
| return 0x7 + 2 * range + 12 * ao_channel; |
| } |
| |
| /* |
| * returns eeprom address that provides gain calibration for given ao |
| * channel and range |
| */ |
| static unsigned int gain_eeprom_address(unsigned int ao_channel, |
| unsigned int range) |
| { |
| return 0x8 + 2 * range + 12 * ao_channel; |
| } |
| |
| /* |
| * returns upper byte of eeprom entry, which gives the coarse adjustment |
| * values |
| */ |
| static unsigned int eeprom_coarse_byte(unsigned int word) |
| { |
| return (word >> 8) & 0xff; |
| } |
| |
| /* returns lower byte of eeprom entry, which gives the fine adjustment values */ |
| static unsigned int eeprom_fine_byte(unsigned int word) |
| { |
| return word & 0xff; |
| } |
| |
| /* set caldacs to eeprom values for given channel and range */ |
| static void cb_pcidda_calibrate(struct comedi_device *dev, unsigned int channel, |
| unsigned int range) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| unsigned int coarse_offset, fine_offset, coarse_gain, fine_gain; |
| |
| /* remember range so we can tell when we need to readjust calibration */ |
| devpriv->ao_range[channel] = range; |
| |
| /* get values from eeprom data */ |
| coarse_offset = |
| eeprom_coarse_byte(devpriv->eeprom_data |
| [offset_eeprom_address(channel, range)]); |
| fine_offset = |
| eeprom_fine_byte(devpriv->eeprom_data |
| [offset_eeprom_address(channel, range)]); |
| coarse_gain = |
| eeprom_coarse_byte(devpriv->eeprom_data |
| [gain_eeprom_address(channel, range)]); |
| fine_gain = |
| eeprom_fine_byte(devpriv->eeprom_data |
| [gain_eeprom_address(channel, range)]); |
| |
| /* set caldacs */ |
| cb_pcidda_write_caldac(dev, caldac_number(channel), |
| coarse_offset_channel(channel), coarse_offset); |
| cb_pcidda_write_caldac(dev, caldac_number(channel), |
| fine_offset_channel(channel), fine_offset); |
| cb_pcidda_write_caldac(dev, caldac_number(channel), |
| coarse_gain_channel(channel), coarse_gain); |
| cb_pcidda_write_caldac(dev, caldac_number(channel), |
| fine_gain_channel(channel), fine_gain); |
| } |
| |
| static int cb_pcidda_ao_winsn(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| struct cb_pcidda_private *devpriv = dev->private; |
| unsigned int command; |
| unsigned int channel, range; |
| |
| channel = CR_CHAN(insn->chanspec); |
| range = CR_RANGE(insn->chanspec); |
| |
| /* adjust calibration dacs if range has changed */ |
| if (range != devpriv->ao_range[channel]) |
| cb_pcidda_calibrate(dev, channel, range); |
| |
| /* output channel configuration */ |
| command = NOSU | ENABLEDAC; |
| |
| /* output channel range */ |
| switch (range) { |
| case 0: |
| command |= BIP | RANGE10V; |
| break; |
| case 1: |
| command |= BIP | RANGE5V; |
| break; |
| case 2: |
| command |= BIP | RANGE2V5; |
| break; |
| case 3: |
| command |= UNIP | RANGE10V; |
| break; |
| case 4: |
| command |= UNIP | RANGE5V; |
| break; |
| case 5: |
| command |= UNIP | RANGE2V5; |
| break; |
| } |
| |
| /* output channel specification */ |
| command |= channel << 2; |
| outw(command, devpriv->dac + DACONTROL); |
| |
| /* write data */ |
| outw(data[0], devpriv->dac + DADATA + channel * 2); |
| |
| /* return the number of samples read/written */ |
| return 1; |
| } |
| |
| static const void *cb_pcidda_find_boardinfo(struct comedi_device *dev, |
| struct pci_dev *pcidev) |
| { |
| const struct cb_pcidda_board *thisboard; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(cb_pcidda_boards); i++) { |
| thisboard = &cb_pcidda_boards[i]; |
| if (thisboard->device_id != pcidev->device) |
| return thisboard; |
| } |
| return NULL; |
| } |
| |
| static int cb_pcidda_attach_pci(struct comedi_device *dev, |
| struct pci_dev *pcidev) |
| { |
| const struct cb_pcidda_board *thisboard; |
| struct cb_pcidda_private *devpriv; |
| struct comedi_subdevice *s; |
| int index; |
| int ret; |
| |
| comedi_set_hw_dev(dev, &pcidev->dev); |
| |
| thisboard = cb_pcidda_find_boardinfo(dev, pcidev); |
| if (!pcidev) |
| return -ENODEV; |
| dev->board_ptr = thisboard; |
| dev->board_name = thisboard->name; |
| |
| ret = alloc_private(dev, sizeof(*devpriv)); |
| if (ret) |
| return ret; |
| devpriv = dev->private; |
| |
| ret = comedi_pci_enable(pcidev, dev->board_name); |
| if (ret) |
| return ret; |
| |
| devpriv->digitalio = pci_resource_start(pcidev, 2); |
| devpriv->dac = pci_resource_start(pcidev, 3); |
| dev->iobase = devpriv->dac; |
| |
| if (thisboard->status == 2) |
| printk |
| ("WARNING: DRIVER FOR THIS BOARD NOT CHECKED WITH MANUAL. " |
| "WORKS ASSUMING FULL COMPATIBILITY WITH PCI-DDA08/12. " |
| "PLEASE REPORT USAGE TO <ivanmr@altavista.com>.\n"); |
| |
| ret = comedi_alloc_subdevices(dev, 3); |
| if (ret) |
| return ret; |
| |
| s = &dev->subdevices[0]; |
| /* analog output subdevice */ |
| s->type = COMEDI_SUBD_AO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = thisboard->ao_chans; |
| s->maxdata = (1 << thisboard->ao_bits) - 1; |
| s->range_table = thisboard->ranges; |
| s->insn_write = cb_pcidda_ao_winsn; |
| |
| /* s->subdev_flags |= SDF_CMD_READ; */ |
| /* s->do_cmd = cb_pcidda_ai_cmd; */ |
| /* s->do_cmdtest = cb_pcidda_ai_cmdtest; */ |
| |
| /* two 8255 digital io subdevices */ |
| s = &dev->subdevices[1]; |
| subdev_8255_init(dev, s, NULL, devpriv->digitalio); |
| s = &dev->subdevices[2]; |
| subdev_8255_init(dev, s, NULL, devpriv->digitalio + PORT2A); |
| |
| dev_dbg(dev->class_dev, "eeprom:\n"); |
| for (index = 0; index < EEPROM_SIZE; index++) { |
| devpriv->eeprom_data[index] = cb_pcidda_read_eeprom(dev, index); |
| dev_dbg(dev->class_dev, "%i:0x%x\n", index, |
| devpriv->eeprom_data[index]); |
| } |
| |
| /* set calibrations dacs */ |
| for (index = 0; index < thisboard->ao_chans; index++) |
| cb_pcidda_calibrate(dev, index, devpriv->ao_range[index]); |
| |
| dev_info(dev->class_dev, "%s attached\n", dev->board_name); |
| |
| return 0; |
| } |
| |
| static void cb_pcidda_detach(struct comedi_device *dev) |
| { |
| struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
| |
| if (dev->subdevices) { |
| subdev_8255_cleanup(dev, &dev->subdevices[1]); |
| subdev_8255_cleanup(dev, &dev->subdevices[2]); |
| } |
| if (pcidev) { |
| if (dev->iobase) |
| comedi_pci_disable(pcidev); |
| } |
| } |
| |
| static struct comedi_driver cb_pcidda_driver = { |
| .driver_name = "cb_pcidda", |
| .module = THIS_MODULE, |
| .attach_pci = cb_pcidda_attach_pci, |
| .detach = cb_pcidda_detach, |
| }; |
| |
| static int __devinit cb_pcidda_pci_probe(struct pci_dev *dev, |
| const struct pci_device_id *ent) |
| { |
| return comedi_pci_auto_config(dev, &cb_pcidda_driver); |
| } |
| |
| static void __devexit cb_pcidda_pci_remove(struct pci_dev *dev) |
| { |
| comedi_pci_auto_unconfig(dev); |
| } |
| |
| static DEFINE_PCI_DEVICE_TABLE(cb_pcidda_pci_table) = { |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0020) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0021) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0022) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0023) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0024) }, |
| { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0025) }, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(pci, cb_pcidda_pci_table); |
| |
| static struct pci_driver cb_pcidda_pci_driver = { |
| .name = "cb_pcidda", |
| .id_table = cb_pcidda_pci_table, |
| .probe = cb_pcidda_pci_probe, |
| .remove = __devexit_p(cb_pcidda_pci_remove), |
| }; |
| module_comedi_pci_driver(cb_pcidda_driver, cb_pcidda_pci_driver); |
| |
| MODULE_AUTHOR("Comedi http://www.comedi.org"); |
| MODULE_DESCRIPTION("Comedi low-level driver"); |
| MODULE_LICENSE("GPL"); |