diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcidas.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas.c | 1711 |
1 files changed, 781 insertions, 930 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index ee9e084bb96c..2b6a637c3499 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -28,7 +28,8 @@ */ /* Driver: cb_pcidas -Description: MeasurementComputing PCI-DAS series with the AMCC S5933 PCI controller +Description: MeasurementComputing PCI-DAS series + with the AMCC S5933 PCI controller Author: Ivan Martinez <imr@oersted.dtu.dk>, Frank Mori Hess <fmhess@users.sourceforge.net> Updated: 2003-3-11 @@ -57,8 +58,8 @@ range and aref. AI Triggering: For start_src == TRIG_EXT, the A/D EXTERNAL TRIGGER IN (pin 45) is used. For 1602 series, the start_arg is interpreted as follows: - start_arg == 0 => gated triger (level high) - start_arg == CR_INVERT => gated triger (level low) + start_arg == 0 => gated trigger (level high) + start_arg == CR_INVERT => gated trigger (level low) start_arg == CR_EDGE => Rising edge start_arg == CR_EDGE | CR_INVERT => Falling edge For the other boards the trigger will be done on rising edge @@ -77,92 +78,74 @@ analog triggering on 1602 series #include "8253.h" #include "8255.h" #include "amcc_s5933.h" -#include "comedi_pci.h" #include "comedi_fc.h" -#undef CB_PCIDAS_DEBUG /* disable debugging code */ -/* #define CB_PCIDAS_DEBUG enable debugging code */ - /* PCI vendor number of ComputerBoards/MeasurementComputing */ #define PCI_VENDOR_ID_CB 0x1307 -#define TIMER_BASE 100 /* 10MHz master clock */ -#define AI_BUFFER_SIZE 1024 /* maximum fifo size of any supported board */ -#define AO_BUFFER_SIZE 1024 /* maximum fifo size of any supported board */ -#define NUM_CHANNELS_8800 8 -#define NUM_CHANNELS_7376 1 -#define NUM_CHANNELS_8402 2 -#define NUM_CHANNELS_DAC08 1 - -/* PCI-DAS base addresses */ - -/* indices of base address regions */ -#define S5933_BADRINDEX 0 -#define CONT_STAT_BADRINDEX 1 -#define ADC_FIFO_BADRINDEX 2 -#define PACER_BADRINDEX 3 -#define AO_BADRINDEX 4 -/* sizes of io regions */ -#define CONT_STAT_SIZE 10 -#define ADC_FIFO_SIZE 4 -#define PACER_SIZE 12 -#define AO_SIZE 4 + +#define TIMER_BASE 100 /* 10MHz master clock */ +#define AI_BUFFER_SIZE 1024 /* max ai fifo size */ +#define AO_BUFFER_SIZE 1024 /* max ao fifo size */ +#define NUM_CHANNELS_8800 8 +#define NUM_CHANNELS_7376 1 +#define NUM_CHANNELS_8402 2 +#define NUM_CHANNELS_DAC08 1 /* Control/Status registers */ -#define INT_ADCFIFO 0 /* INTERRUPT / ADC FIFO register */ -#define INT_EOS 0x1 /* interrupt end of scan */ -#define INT_FHF 0x2 /* interrupt fifo half full */ -#define INT_FNE 0x3 /* interrupt fifo not empty */ -#define INT_MASK 0x3 /* mask of interrupt select bits */ -#define INTE 0x4 /* interrupt enable */ -#define DAHFIE 0x8 /* dac half full interrupt enable */ -#define EOAIE 0x10 /* end of acquisition interrupt enable */ -#define DAHFI 0x20 /* dac half full read status / write interrupt clear */ -#define EOAI 0x40 /* read end of acq. interrupt status / write clear */ -#define INT 0x80 /* read interrupt status / write clear */ -#define EOBI 0x200 /* read end of burst interrupt status */ -#define ADHFI 0x400 /* read half-full interrupt status */ -#define ADNEI 0x800 /* read fifo not empty interrupt latch status */ -#define ADNE 0x1000 /* read, fifo not empty (realtime, not latched) status */ -#define DAEMIE 0x1000 /* write, dac empty interrupt enable */ -#define LADFUL 0x2000 /* read fifo overflow / write clear */ -#define DAEMI 0x4000 /* dac fifo empty interrupt status / write clear */ - -#define ADCMUX_CONT 2 /* ADC CHANNEL MUX AND CONTROL register */ -#define BEGIN_SCAN(x) ((x) & 0xf) -#define END_SCAN(x) (((x) & 0xf) << 4) -#define GAIN_BITS(x) (((x) & 0x3) << 8) -#define UNIP 0x800 /* Analog front-end unipolar for range */ -#define SE 0x400 /* Inputs in single-ended mode */ -#define PACER_MASK 0x3000 /* pacer source bits */ -#define PACER_INT 0x1000 /* internal pacer */ -#define PACER_EXT_FALL 0x2000 /* external falling edge */ -#define PACER_EXT_RISE 0x3000 /* external rising edge */ -#define EOC 0x4000 /* adc not busy */ - -#define TRIG_CONTSTAT 4 /* TRIGGER CONTROL/STATUS register */ -#define SW_TRIGGER 0x1 /* software start trigger */ -#define EXT_TRIGGER 0x2 /* external start trigger */ -#define ANALOG_TRIGGER 0x3 /* external analog trigger */ -#define TRIGGER_MASK 0x3 /* mask of bits that determine start trigger */ -#define TGPOL 0x04 /* invert the edge/level of the external trigger (1602 only) */ -#define TGSEL 0x08 /* if set edge triggered, otherwise level trigerred (1602 only) */ -#define TGEN 0x10 /* enable external start trigger */ -#define BURSTE 0x20 /* burst mode enable */ -#define XTRCL 0x80 /* clear external trigger */ - -#define CALIBRATION_REG 6 /* CALIBRATION register */ -#define SELECT_8800_BIT 0x100 /* select 8800 caldac */ -#define SELECT_TRIMPOT_BIT 0x200 /* select ad7376 trim pot */ -#define SELECT_DAC08_BIT 0x400 /* select dac08 caldac */ +#define INT_ADCFIFO 0 /* INTERRUPT / ADC FIFO register */ +#define INT_EOS 0x1 /* int end of scan */ +#define INT_FHF 0x2 /* int fifo half full */ +#define INT_FNE 0x3 /* int fifo not empty */ +#define INT_MASK 0x3 /* mask of int select bits */ +#define INTE 0x4 /* int enable */ +#define DAHFIE 0x8 /* dac half full int enable */ +#define EOAIE 0x10 /* end of acq. int enable */ +#define DAHFI 0x20 /* dac half full status / clear */ +#define EOAI 0x40 /* end of acq. int status / clear */ +#define INT 0x80 /* int status / clear */ +#define EOBI 0x200 /* end of burst int status */ +#define ADHFI 0x400 /* half-full int status */ +#define ADNEI 0x800 /* fifo not empty int status (latch) */ +#define ADNE 0x1000 /* fifo not empty status (realtime) */ +#define DAEMIE 0x1000 /* dac empty int enable */ +#define LADFUL 0x2000 /* fifo overflow / clear */ +#define DAEMI 0x4000 /* dac fifo empty int status / clear */ + +#define ADCMUX_CONT 2 /* ADC CHANNEL MUX AND CONTROL reg */ +#define BEGIN_SCAN(x) ((x) & 0xf) +#define END_SCAN(x) (((x) & 0xf) << 4) +#define GAIN_BITS(x) (((x) & 0x3) << 8) +#define UNIP 0x800 /* Analog front-end unipolar mode */ +#define SE 0x400 /* Inputs in single-ended mode */ +#define PACER_MASK 0x3000 /* pacer source bits */ +#define PACER_INT 0x1000 /* int. pacer */ +#define PACER_EXT_FALL 0x2000 /* ext. falling edge */ +#define PACER_EXT_RISE 0x3000 /* ext. rising edge */ +#define EOC 0x4000 /* adc not busy */ + +#define TRIG_CONTSTAT 4 /* TRIGGER CONTROL/STATUS register */ +#define SW_TRIGGER 0x1 /* software start trigger */ +#define EXT_TRIGGER 0x2 /* ext. start trigger */ +#define ANALOG_TRIGGER 0x3 /* ext. analog trigger */ +#define TRIGGER_MASK 0x3 /* start trigger mask */ +#define TGPOL 0x04 /* invert trigger (1602 only) */ +#define TGSEL 0x08 /* edge/level trigerred (1602 only) */ +#define TGEN 0x10 /* enable external start trigger */ +#define BURSTE 0x20 /* burst mode enable */ +#define XTRCL 0x80 /* clear external trigger */ + +#define CALIBRATION_REG 6 /* CALIBRATION register */ +#define SELECT_8800_BIT 0x100 /* select 8800 caldac */ +#define SELECT_TRIMPOT_BIT 0x200 /* select ad7376 trim pot */ +#define SELECT_DAC08_BIT 0x400 /* select dac08 caldac */ #define CAL_SRC_BITS(x) (((x) & 0x7) << 11) -#define CAL_EN_BIT 0x4000 /* read calibration source instead of analog input channel 0 */ -#define SERIAL_DATA_IN_BIT 0x8000 /* serial data stream going to 8800 and 7376 */ +#define CAL_EN_BIT 0x4000 /* calibration source enable */ +#define SERIAL_DATA_IN_BIT 0x8000 /* serial data bit going to caldac */ + +#define DAC_CSR 0x8 /* dac control and status register */ +#define DACEN 0x02 /* dac enable */ +#define DAC_MODE_UPDATE_BOTH 0x80 /* update both dacs */ -#define DAC_CSR 0x8 /* dac control and status register */ -enum dac_csr_bits { - DACEN = 0x2, /* dac enable */ - DAC_MODE_UPDATE_BOTH = 0x80, /* update both dacs when dac0 is written */ -}; static inline unsigned int DAC_RANGE(unsigned int channel, unsigned int range) { return (range & 0x3) << (8 + 2 * (channel & 0x1)); @@ -174,27 +157,26 @@ static inline unsigned int DAC_RANGE_MASK(unsigned int channel) }; /* bits for 1602 series only */ -enum dac_csr_bits_1602 { - DAC_EMPTY = 0x1, /* dac fifo empty, read, write clear */ - DAC_START = 0x4, /* start/arm dac fifo operations */ - DAC_PACER_MASK = 0x18, /* bits that set dac pacer source */ - DAC_PACER_INT = 0x8, /* dac internal pacing */ - DAC_PACER_EXT_FALL = 0x10, /* dac external pacing, falling edge */ - DAC_PACER_EXT_RISE = 0x18, /* dac external pacing, rising edge */ -}; +#define DAC_EMPTY 0x1 /* fifo empty, read, write clear */ +#define DAC_START 0x4 /* start/arm fifo operations */ +#define DAC_PACER_MASK 0x18 /* bits that set pacer source */ +#define DAC_PACER_INT 0x8 /* int. pacing */ +#define DAC_PACER_EXT_FALL 0x10 /* ext. pacing, falling edge */ +#define DAC_PACER_EXT_RISE 0x18 /* ext. pacing, rising edge */ + static inline unsigned int DAC_CHAN_EN(unsigned int channel) { return 1 << (5 + (channel & 0x1)); /* enable channel 0 or 1 */ }; /* analog input fifo */ -#define ADCDATA 0 /* ADC DATA register */ -#define ADCFIFOCLR 2 /* ADC FIFO CLEAR */ +#define ADCDATA 0 /* ADC DATA register */ +#define ADCFIFOCLR 2 /* ADC FIFO CLEAR */ /* pacer, counter, dio registers */ -#define ADC8254 0 -#define DIO_8255 4 -#define DAC8254 8 +#define ADC8254 0 +#define DIO_8255 4 +#define DAC8254 8 /* analog output registers for 100x, 1200 series */ static inline unsigned int DAC_DATA_REG(unsigned int channel) @@ -203,11 +185,11 @@ static inline unsigned int DAC_DATA_REG(unsigned int channel) } /* analog output registers for 1602 series*/ -#define DACDATA 0 /* DAC DATA register */ -#define DACFIFOCLR 2 /* DAC FIFO CLEAR */ +#define DACDATA 0 /* DAC DATA register */ +#define DACFIFOCLR 2 /* DAC FIFO CLEAR */ + +#define IS_UNIPOLAR 0x4 /* unipolar range mask */ -/* bit in hexadecimal representation of range index that indicates unipolar input range */ -#define IS_UNIPOLAR 0x4 /* analog input ranges for most boards */ static const struct comedi_lrange cb_pcidas_ranges = { 8, @@ -257,523 +239,175 @@ enum trimpot_model { struct cb_pcidas_board { const char *name; unsigned short device_id; - int ai_se_chans; /* Inputs in single-ended mode */ - int ai_diff_chans; /* Inputs in differential mode */ + int ai_nchan; /* Inputs in single-ended mode */ int ai_bits; /* analog input resolution */ int ai_speed; /* fastest conversion period in ns */ int ao_nchan; /* number of analog out channels */ int has_ao_fifo; /* analog output has fifo */ - int ao_scan_speed; /* analog output speed for 1602 series (for a scan, not conversion) */ + int ao_scan_speed; /* analog output scan speed for 1602 series */ int fifo_size; /* number of samples fifo can hold */ const struct comedi_lrange *ranges; enum trimpot_model trimpot; unsigned has_dac08:1; - unsigned has_ai_trig_gated:1; /* Tells if the AI trigger can be gated */ - unsigned has_ai_trig_invert:1; /* Tells if the AI trigger can be inverted */ + unsigned is_1602:1; }; static const struct cb_pcidas_board cb_pcidas_boards[] = { { - .name = "pci-das1602/16", - .device_id = 0x1, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 16, - .ai_speed = 5000, - .ao_nchan = 2, - .has_ao_fifo = 1, - .ao_scan_speed = 10000, - .fifo_size = 512, - .ranges = &cb_pcidas_ranges, - .trimpot = AD8402, - .has_dac08 = 1, - .has_ai_trig_gated = 1, - .has_ai_trig_invert = 1, - }, - { - .name = "pci-das1200", - .device_id = 0xF, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 3200, - .ao_nchan = 2, - .has_ao_fifo = 0, - .fifo_size = 1024, - .ranges = &cb_pcidas_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 0, - .has_ai_trig_invert = 0, - }, - { - .name = "pci-das1602/12", - .device_id = 0x10, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 3200, - .ao_nchan = 2, - .has_ao_fifo = 1, - .ao_scan_speed = 4000, - .fifo_size = 1024, - .ranges = &cb_pcidas_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 1, - .has_ai_trig_invert = 1, - }, - { - .name = "pci-das1200/jr", - .device_id = 0x19, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 3200, - .ao_nchan = 0, - .has_ao_fifo = 0, - .fifo_size = 1024, - .ranges = &cb_pcidas_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 0, - .has_ai_trig_invert = 0, - }, - { - .name = "pci-das1602/16/jr", - .device_id = 0x1C, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 16, - .ai_speed = 5000, - .ao_nchan = 0, - .has_ao_fifo = 0, - .fifo_size = 512, - .ranges = &cb_pcidas_ranges, - .trimpot = AD8402, - .has_dac08 = 1, - .has_ai_trig_gated = 1, - .has_ai_trig_invert = 1, - }, - { - .name = "pci-das1000", - .device_id = 0x4C, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 4000, - .ao_nchan = 0, - .has_ao_fifo = 0, - .fifo_size = 1024, - .ranges = &cb_pcidas_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 0, - .has_ai_trig_invert = 0, - }, - { - .name = "pci-das1001", - .device_id = 0x1a, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 6800, - .ao_nchan = 2, - .has_ao_fifo = 0, - .fifo_size = 1024, - .ranges = &cb_pcidas_alt_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 0, - .has_ai_trig_invert = 0, - }, - { - .name = "pci-das1002", - .device_id = 0x1b, - .ai_se_chans = 16, - .ai_diff_chans = 8, - .ai_bits = 12, - .ai_speed = 6800, - .ao_nchan = 2, - .has_ao_fifo = 0, - .fifo_size = 1024, - .ranges = &cb_pcidas_ranges, - .trimpot = AD7376, - .has_dac08 = 0, - .has_ai_trig_gated = 0, - .has_ai_trig_invert = 0, - }, + .name = "pci-das1602/16", + .device_id = 0x1, + .ai_nchan = 16, + .ai_bits = 16, + .ai_speed = 5000, + .ao_nchan = 2, + .has_ao_fifo = 1, + .ao_scan_speed = 10000, + .fifo_size = 512, + .ranges = &cb_pcidas_ranges, + .trimpot = AD8402, + .has_dac08 = 1, + .is_1602 = 1, + }, { + .name = "pci-das1200", + .device_id = 0xF, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 3200, + .ao_nchan = 2, + .fifo_size = 1024, + .ranges = &cb_pcidas_ranges, + .trimpot = AD7376, + }, { + .name = "pci-das1602/12", + .device_id = 0x10, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 3200, + .ao_nchan = 2, + .has_ao_fifo = 1, + .ao_scan_speed = 4000, + .fifo_size = 1024, + .ranges = &cb_pcidas_ranges, + .trimpot = AD7376, + .is_1602 = 1, + }, { + .name = "pci-das1200/jr", + .device_id = 0x19, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 3200, + .fifo_size = 1024, + .ranges = &cb_pcidas_ranges, + .trimpot = AD7376, + }, { + .name = "pci-das1602/16/jr", + .device_id = 0x1C, + .ai_nchan = 16, + .ai_bits = 16, + .ai_speed = 5000, + .fifo_size = 512, + .ranges = &cb_pcidas_ranges, + .trimpot = AD8402, + .has_dac08 = 1, + .is_1602 = 1, + }, { + .name = "pci-das1000", + .device_id = 0x4C, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 4000, + .fifo_size = 1024, + .ranges = &cb_pcidas_ranges, + .trimpot = AD7376, + }, { + .name = "pci-das1001", + .device_id = 0x1a, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 6800, + .ao_nchan = 2, + .fifo_size = 1024, + .ranges = &cb_pcidas_alt_ranges, + .trimpot = AD7376, + }, { + .name = "pci-das1002", + .device_id = 0x1b, + .ai_nchan = 16, + .ai_bits = 12, + .ai_speed = 6800, + .ao_nchan = 2, + .fifo_size = 1024, + .ranges = &cb_pcidas_ranges, + .trimpot = AD7376, + }, }; -/* - * Useful for shorthand access to the particular board structure - */ -#define thisboard ((const struct cb_pcidas_board *)dev->board_ptr) - -/* 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_pcidas_private { - /* would be useful for a PCI device */ - struct pci_dev *pci_dev; - /* base addresses */ + /* base addresses */ unsigned long s5933_config; unsigned long control_status; unsigned long adc_fifo; unsigned long pacer_counter_dio; unsigned long ao_registers; - /* divisors of master clock for analog input pacing */ + /* divisors of master clock for analog input pacing */ unsigned int divisor1; unsigned int divisor2; - volatile unsigned int count; /* number of analog input samples remaining */ - volatile unsigned int adc_fifo_bits; /* bits to write to interrupt/adcfifo register */ - volatile unsigned int s5933_intcsr_bits; /* bits to write to amcc s5933 interrupt control/status register */ - volatile unsigned int ao_control_bits; /* bits to write to ao control and status register */ + /* number of analog input samples remaining */ + unsigned int count; + /* bits to write to registers */ + unsigned int adc_fifo_bits; + unsigned int s5933_intcsr_bits; + unsigned int ao_control_bits; + /* fifo buffers */ short ai_buffer[AI_BUFFER_SIZE]; short ao_buffer[AO_BUFFER_SIZE]; - /* divisors of master clock for analog output pacing */ + /* divisors of master clock for analog output pacing */ unsigned int ao_divisor1; unsigned int ao_divisor2; - volatile unsigned int ao_count; /* number of analog output samples remaining */ - int ao_value[2]; /* remember what the analog outputs are set to, to allow readback */ - unsigned int caldac_value[NUM_CHANNELS_8800]; /* for readback of caldac */ - unsigned int trimpot_value[NUM_CHANNELS_8402]; /* for readback of trimpot */ + /* number of analog output samples remaining */ + unsigned int ao_count; + /* cached values for readback */ + int ao_value[2]; + unsigned int caldac_value[NUM_CHANNELS_8800]; + unsigned int trimpot_value[NUM_CHANNELS_8402]; unsigned int dac08_value; unsigned int calibration_source; }; -/* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct cb_pcidas_private *)dev->private) - -static int cb_pcidas_ai_rinsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ao_readback_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data); -static int cb_pcidas_ai_cmd(struct comedi_device *dev, - struct comedi_subdevice *s); -static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd); -static int cb_pcidas_ao_cmd(struct comedi_device *dev, - struct comedi_subdevice *s); -static int cb_pcidas_ao_inttrig(struct comedi_device *dev, - struct comedi_subdevice *subdev, - unsigned int trig_num); -static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd); -static irqreturn_t cb_pcidas_interrupt(int irq, void *d); -static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status); -static int cb_pcidas_cancel(struct comedi_device *dev, - struct comedi_subdevice *s); -static int cb_pcidas_ao_cancel(struct comedi_device *dev, - struct comedi_subdevice *s); -static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, - int round_flags); -static int eeprom_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int caldac_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int caldac_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int trimpot_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int cb_pcidas_trimpot_write(struct comedi_device *dev, - unsigned int channel, unsigned int value); -static int trimpot_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int dac08_read_insn(struct comedi_device *dev, - struct comedi_subdevice *s, struct comedi_insn *insn, - unsigned int *data); -static int dac08_write(struct comedi_device *dev, unsigned int value); -static int dac08_write_insn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data); -static int caldac_8800_write(struct comedi_device *dev, unsigned int address, - uint8_t value); -static int trimpot_7376_write(struct comedi_device *dev, uint8_t value); -static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, - uint8_t value); -static int nvram_read(struct comedi_device *dev, unsigned int address, - uint8_t *data); - static inline unsigned int cal_enable_bits(struct comedi_device *dev) { - return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source); -} - -/* - * Attach is called by the Comedi core to configure the driver - * for a particular board. - */ -static int cb_pcidas_attach(struct comedi_device *dev, - struct comedi_devconfig *it) -{ - struct comedi_subdevice *s; - struct pci_dev *pcidev = NULL; - int index; - int i; - -/* - * Allocate the private structure area. - */ - if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0) - return -ENOMEM; + struct cb_pcidas_private *devpriv = dev->private; -/* - * Probe the device to determine what device in the series it is. - */ - - for_each_pci_dev(pcidev) { - /* is it not a computer boards card? */ - if (pcidev->vendor != PCI_VENDOR_ID_CB) - continue; - /* loop through cards supported by this driver */ - for (index = 0; index < ARRAY_SIZE(cb_pcidas_boards); index++) { - if (cb_pcidas_boards[index].device_id != pcidev->device) - continue; - /* was a particular bus/slot requested? */ - if (it->options[0] || it->options[1]) { - /* are we on the wrong bus/slot? */ - if (pcidev->bus->number != it->options[0] || - PCI_SLOT(pcidev->devfn) != it->options[1]) { - continue; - } - } - devpriv->pci_dev = pcidev; - dev->board_ptr = cb_pcidas_boards + index; - goto found; - } - } - - dev_err(dev->hw_dev, "No supported ComputerBoards/MeasurementComputing card found on requested position\n"); - return -EIO; - -found: - - dev_dbg(dev->hw_dev, "Found %s on bus %i, slot %i\n", - cb_pcidas_boards[index].name, pcidev->bus->number, - PCI_SLOT(pcidev->devfn)); - - /* - * Enable PCI device and reserve I/O ports. - */ - if (comedi_pci_enable(pcidev, "cb_pcidas")) { - dev_err(dev->hw_dev, "Failed to enable PCI device and request regions\n"); - return -EIO; - } - /* - * Initialize devpriv->control_status and devpriv->adc_fifo to point to - * their base address. - */ - devpriv->s5933_config = - pci_resource_start(devpriv->pci_dev, S5933_BADRINDEX); - devpriv->control_status = - pci_resource_start(devpriv->pci_dev, CONT_STAT_BADRINDEX); - devpriv->adc_fifo = - pci_resource_start(devpriv->pci_dev, ADC_FIFO_BADRINDEX); - devpriv->pacer_counter_dio = - pci_resource_start(devpriv->pci_dev, PACER_BADRINDEX); - if (thisboard->ao_nchan) { - devpriv->ao_registers = - pci_resource_start(devpriv->pci_dev, AO_BADRINDEX); - } - /* disable and clear interrupts on amcc s5933 */ - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - - /* get irq */ - if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt, - IRQF_SHARED, "cb_pcidas", dev)) { - dev_dbg(dev->hw_dev, "unable to allocate irq %d\n", - devpriv->pci_dev->irq); - return -EINVAL; - } - dev->irq = devpriv->pci_dev->irq; - - /* Initialize dev->board_name */ - dev->board_name = thisboard->name; - -/* - * Allocate the subdevice structures. - */ - if (alloc_subdevices(dev, 7) < 0) - return -ENOMEM; - - s = dev->subdevices + 0; - /* analog input subdevice */ - dev->read_subdev = s; - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; - /* WARNING: Number of inputs in differential mode is ignored */ - s->n_chan = thisboard->ai_se_chans; - s->len_chanlist = thisboard->ai_se_chans; - s->maxdata = (1 << thisboard->ai_bits) - 1; - s->range_table = thisboard->ranges; - s->insn_read = cb_pcidas_ai_rinsn; - s->insn_config = ai_config_insn; - s->do_cmd = cb_pcidas_ai_cmd; - s->do_cmdtest = cb_pcidas_ai_cmdtest; - s->cancel = cb_pcidas_cancel; - - /* analog output subdevice */ - s = dev->subdevices + 1; - if (thisboard->ao_nchan) { - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; - s->n_chan = thisboard->ao_nchan; - /* analog out resolution is the same as analog input resolution, so use ai_bits */ - s->maxdata = (1 << thisboard->ai_bits) - 1; - s->range_table = &cb_pcidas_ao_ranges; - s->insn_read = cb_pcidas_ao_readback_insn; - if (thisboard->has_ao_fifo) { - dev->write_subdev = s; - s->subdev_flags |= SDF_CMD_WRITE; - s->insn_write = cb_pcidas_ao_fifo_winsn; - s->do_cmdtest = cb_pcidas_ao_cmdtest; - s->do_cmd = cb_pcidas_ao_cmd; - s->cancel = cb_pcidas_ao_cancel; - } else { - s->insn_write = cb_pcidas_ao_nofifo_winsn; - } - } else { - s->type = COMEDI_SUBD_UNUSED; - } - - /* 8255 */ - s = dev->subdevices + 2; - subdev_8255_init(dev, s, NULL, devpriv->pacer_counter_dio + DIO_8255); - - /* serial EEPROM, */ - s = dev->subdevices + 3; - s->type = COMEDI_SUBD_MEMORY; - s->subdev_flags = SDF_READABLE | SDF_INTERNAL; - s->n_chan = 256; - s->maxdata = 0xff; - s->insn_read = eeprom_read_insn; - - /* 8800 caldac */ - s = dev->subdevices + 4; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = NUM_CHANNELS_8800; - s->maxdata = 0xff; - s->insn_read = caldac_read_insn; - s->insn_write = caldac_write_insn; - for (i = 0; i < s->n_chan; i++) - caldac_8800_write(dev, i, s->maxdata / 2); - - /* trim potentiometer */ - s = dev->subdevices + 5; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - if (thisboard->trimpot == AD7376) { - s->n_chan = NUM_CHANNELS_7376; - s->maxdata = 0x7f; - } else { - s->n_chan = NUM_CHANNELS_8402; - s->maxdata = 0xff; - } - s->insn_read = trimpot_read_insn; - s->insn_write = trimpot_write_insn; - for (i = 0; i < s->n_chan; i++) - cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); - - /* dac08 caldac */ - s = dev->subdevices + 6; - if (thisboard->has_dac08) { - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = NUM_CHANNELS_DAC08; - s->insn_read = dac08_read_insn; - s->insn_write = dac08_write_insn; - s->maxdata = 0xff; - dac08_write(dev, s->maxdata / 2); - } else - s->type = COMEDI_SUBD_UNUSED; - - /* make sure mailbox 4 is empty */ - inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); - /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ - devpriv->s5933_intcsr_bits = - INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | - INTCSR_INBOX_FULL_INT; - /* clear and enable interrupt on amcc s5933 */ - outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - - return 1; -} - -static void cb_pcidas_detach(struct comedi_device *dev) -{ - if (devpriv) { - if (devpriv->s5933_config) { - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->s5933_config + AMCC_OP_REG_INTCSR); - } - } - if (dev->irq) - free_irq(dev->irq, dev); - if (dev->subdevices) - subdev_8255_cleanup(dev, dev->subdevices + 2); - if (devpriv && devpriv->pci_dev) { - if (devpriv->s5933_config) - comedi_pci_disable(devpriv->pci_dev); - pci_dev_put(devpriv->pci_dev); - } + return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source); } -/* - * "instructions" read/write data in "one-shot" or "software-triggered" - * mode. - */ static int cb_pcidas_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - int n, i; + struct cb_pcidas_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); + unsigned int aref = CR_AREF(insn->chanspec); unsigned int bits; - static const int timeout = 10000; - int channel; - /* enable calibration input if appropriate */ + int n, i; + + /* enable calibration input if appropriate */ if (insn->chanspec & CR_ALT_SOURCE) { outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); - channel = 0; + chan = 0; } else { outw(0, devpriv->control_status + CALIBRATION_REG); - channel = CR_CHAN(insn->chanspec); } - /* set mux limits and gain */ - bits = BEGIN_SCAN(channel) | - END_SCAN(channel) | GAIN_BITS(CR_RANGE(insn->chanspec)); - /* set unipolar/bipolar */ - if (CR_RANGE(insn->chanspec) & IS_UNIPOLAR) + + /* set mux limits and gain */ + bits = BEGIN_SCAN(chan) | END_SCAN(chan) | GAIN_BITS(range); + /* set unipolar/bipolar */ + if (range & IS_UNIPOLAR) bits |= UNIP; - /* set singleended/differential */ - if (CR_AREF(insn->chanspec) != AREF_DIFF) + /* set single-ended/differential */ + if (aref != AREF_DIFF) bits |= SE; outw(bits, devpriv->control_status + ADCMUX_CONT); @@ -787,11 +421,11 @@ static int cb_pcidas_ai_rinsn(struct comedi_device *dev, /* wait for conversion to end */ /* return -ETIMEDOUT if there is a timeout */ - for (i = 0; i < timeout; i++) { + for (i = 0; i < 10000; i++) { if (inw(devpriv->control_status + ADCMUX_CONT) & EOC) break; } - if (i == timeout) + if (i == 10000) return -ETIMEDOUT; /* read data */ @@ -802,37 +436,28 @@ static int cb_pcidas_ai_rinsn(struct comedi_device *dev, return n; } -static int ai_config_calibration_source(struct comedi_device *dev, - unsigned int *data) -{ - static const int num_calibration_sources = 8; - unsigned int source = data[1]; - - if (source >= num_calibration_sources) { - dev_err(dev->hw_dev, "invalid calibration source: %i\n", - source); - return -EINVAL; - } - - devpriv->calibration_source = source; - - return 2; -} - static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct cb_pcidas_private *devpriv = dev->private; int id = data[0]; + unsigned int source = data[1]; switch (id) { case INSN_CONFIG_ALT_SOURCE: - return ai_config_calibration_source(dev, data); + if (source >= 8) { + dev_err(dev->class_dev, + "invalid calibration source: %i\n", + source); + return -EINVAL; + } + devpriv->calibration_source = source; break; default: return -EINVAL; break; } - return -EINVAL; + return insn->n; } /* analog output insn for pcidas-1000 and 1200 series */ @@ -841,25 +466,26 @@ static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - int channel; + struct cb_pcidas_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); unsigned long flags; - /* set channel and range */ - channel = CR_CHAN(insn->chanspec); + /* set channel and range */ spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_control_bits &= - ~DAC_MODE_UPDATE_BOTH & ~DAC_RANGE_MASK(channel); - devpriv->ao_control_bits |= - DACEN | DAC_RANGE(channel, CR_RANGE(insn->chanspec)); + devpriv->ao_control_bits &= (~DAC_MODE_UPDATE_BOTH & + ~DAC_RANGE_MASK(chan)); + devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range)); outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); spin_unlock_irqrestore(&dev->spinlock, flags); - /* remember value for readback */ - devpriv->ao_value[channel] = data[0]; - /* send data */ - outw(data[0], devpriv->ao_registers + DAC_DATA_REG(channel)); + /* remember value for readback */ + devpriv->ao_value[chan] = data[0]; - return 1; + /* send data */ + outw(data[0], devpriv->ao_registers + DAC_DATA_REG(chan)); + + return insn->n; } /* analog output insn for pcidas-1602 series */ @@ -867,46 +493,84 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - int channel; + struct cb_pcidas_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); unsigned long flags; - /* clear dac fifo */ + /* clear dac fifo */ outw(0, devpriv->ao_registers + DACFIFOCLR); - /* set channel and range */ - channel = CR_CHAN(insn->chanspec); + /* set channel and range */ spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_control_bits &= - ~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & ~DAC_RANGE_MASK(channel) & - ~DAC_PACER_MASK; - devpriv->ao_control_bits |= - DACEN | DAC_RANGE(channel, - CR_RANGE(insn-> - chanspec)) | DAC_CHAN_EN(channel) | - DAC_START; + devpriv->ao_control_bits &= (~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & + ~DAC_RANGE_MASK(chan) & ~DAC_PACER_MASK); + devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range) | + DAC_CHAN_EN(chan) | DAC_START); outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); spin_unlock_irqrestore(&dev->spinlock, flags); - /* remember value for readback */ - devpriv->ao_value[channel] = data[0]; - /* send data */ + /* remember value for readback */ + devpriv->ao_value[chan] = data[0]; + + /* send data */ outw(data[0], devpriv->ao_registers + DACDATA); - return 1; + return insn->n; } -/* analog output readback insn */ -/* XXX loses track of analog output value back after an analog ouput command is executed */ static int cb_pcidas_ao_readback_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct cb_pcidas_private *devpriv = dev->private; + data[0] = devpriv->ao_value[CR_CHAN(insn->chanspec)]; return 1; } +static int wait_for_nvram_ready(unsigned long s5933_base_addr) +{ + static const int timeout = 1000; + unsigned int i; + + for (i = 0; i < timeout; i++) { + if ((inb(s5933_base_addr + + AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY) + == 0) + return 0; + udelay(1); + } + return -1; +} + +static int nvram_read(struct comedi_device *dev, unsigned int address, + uint8_t *data) +{ + struct cb_pcidas_private *devpriv = dev->private; + unsigned long iobase = devpriv->s5933_config; + + if (wait_for_nvram_ready(iobase) < 0) + return -ETIMEDOUT; + + outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_LOW_ADDR, + iobase + AMCC_OP_REG_MCSR_NVCMD); + outb(address & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); + outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_HIGH_ADDR, + iobase + AMCC_OP_REG_MCSR_NVCMD); + outb((address >> 8) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); + outb(MCSR_NV_ENABLE | MCSR_NV_READ, iobase + AMCC_OP_REG_MCSR_NVCMD); + + if (wait_for_nvram_ready(iobase) < 0) + return -ETIMEDOUT; + + *data = inb(iobase + AMCC_OP_REG_MCSR_NVDATA); + + return 0; +} + static int eeprom_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) @@ -923,6 +587,56 @@ static int eeprom_read_insn(struct comedi_device *dev, return 1; } +static void write_calibration_bitstream(struct comedi_device *dev, + unsigned int register_bits, + unsigned int bitstream, + unsigned int bitstream_length) +{ + struct cb_pcidas_private *devpriv = dev->private; + static const int write_delay = 1; + unsigned int bit; + + for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { + if (bitstream & bit) + register_bits |= SERIAL_DATA_IN_BIT; + else + register_bits &= ~SERIAL_DATA_IN_BIT; + udelay(write_delay); + outw(register_bits, devpriv->control_status + CALIBRATION_REG); + } +} + +static int caldac_8800_write(struct comedi_device *dev, unsigned int address, + uint8_t value) +{ + struct cb_pcidas_private *devpriv = dev->private; + static const int num_caldac_channels = 8; + static const int bitstream_length = 11; + unsigned int bitstream = ((address & 0x7) << 8) | value; + static const int caldac_8800_udelay = 1; + + if (address >= num_caldac_channels) { + comedi_error(dev, "illegal caldac channel"); + return -1; + } + + if (value == devpriv->caldac_value[address]) + return 1; + + devpriv->caldac_value[address] = value; + + write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream, + bitstream_length); + + udelay(caldac_8800_udelay); + outw(cal_enable_bits(dev) | SELECT_8800_BIT, + devpriv->control_status + CALIBRATION_REG); + udelay(caldac_8800_udelay); + outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); + + return 1; +} + static int caldac_write_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) @@ -936,51 +650,112 @@ static int caldac_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct cb_pcidas_private *devpriv = dev->private; + data[0] = devpriv->caldac_value[CR_CHAN(insn->chanspec)]; return 1; } /* 1602/16 pregain offset */ -static int dac08_write(struct comedi_device *dev, unsigned int value) +static void dac08_write(struct comedi_device *dev, unsigned int value) { - if (devpriv->dac08_value == value) - return 1; + struct cb_pcidas_private *devpriv = dev->private; + unsigned long cal_reg; - devpriv->dac08_value = value; + if (devpriv->dac08_value != value) { + devpriv->dac08_value = value; - outw(cal_enable_bits(dev) | (value & 0xff), - devpriv->control_status + CALIBRATION_REG); - udelay(1); - outw(cal_enable_bits(dev) | SELECT_DAC08_BIT | (value & 0xff), - devpriv->control_status + CALIBRATION_REG); - udelay(1); - outw(cal_enable_bits(dev) | (value & 0xff), - devpriv->control_status + CALIBRATION_REG); - udelay(1); + cal_reg = devpriv->control_status + CALIBRATION_REG; - return 1; + value &= 0xff; + value |= cal_enable_bits(dev); + + /* latch the new value into the caldac */ + outw(value, cal_reg); + udelay(1); + outw(value | SELECT_DAC08_BIT, cal_reg); + udelay(1); + outw(value, cal_reg); + udelay(1); + } } static int dac08_write_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - return dac08_write(dev, data[0]); + int i; + + for (i = 0; i < insn->n; i++) + dac08_write(dev, data[i]); + + return insn->n; } static int dac08_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct cb_pcidas_private *devpriv = dev->private; + data[0] = devpriv->dac08_value; return 1; } +static int trimpot_7376_write(struct comedi_device *dev, uint8_t value) +{ + struct cb_pcidas_private *devpriv = dev->private; + static const int bitstream_length = 7; + unsigned int bitstream = value & 0x7f; + unsigned int register_bits; + static const int ad7376_udelay = 1; + + register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; + udelay(ad7376_udelay); + outw(register_bits, devpriv->control_status + CALIBRATION_REG); + + write_calibration_bitstream(dev, register_bits, bitstream, + bitstream_length); + + udelay(ad7376_udelay); + outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); + + return 0; +} + +/* For 1602/16 only + * ch 0 : adc gain + * ch 1 : adc postgain offset */ +static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, + uint8_t value) +{ + struct cb_pcidas_private *devpriv = dev->private; + static const int bitstream_length = 10; + unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff); + unsigned int register_bits; + static const int ad8402_udelay = 1; + + register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; + udelay(ad8402_udelay); + outw(register_bits, devpriv->control_status + CALIBRATION_REG); + + write_calibration_bitstream(dev, register_bits, bitstream, + bitstream_length); + + udelay(ad8402_udelay); + outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); + + return 0; +} + static int cb_pcidas_trimpot_write(struct comedi_device *dev, unsigned int channel, unsigned int value) { + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; + if (devpriv->trimpot_value[channel] == value) return 1; @@ -1014,6 +789,7 @@ static int trimpot_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct cb_pcidas_private *devpriv = dev->private; unsigned int channel = CR_CHAN(insn->chanspec); data[0] = devpriv->trimpot_value[channel]; @@ -1025,18 +801,13 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; int err = 0; int tmp; int i, gain, start_chan; - /* cmdtest tests a particular command to see if it is valid. - * Using the cmdtest ioctl, a user can create a valid cmd - * and then have it executes by the cmd ioctl. - * - * cmdtest returns 1,2,3,4 or 0, depending on which tests - * the command passes. */ - - /* step 1: make sure trigger sources are trivially valid */ + /* step 1: trigger sources are trivially valid */ tmp = cmd->start_src; cmd->start_src &= TRIG_NOW | TRIG_EXT; @@ -1066,7 +837,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, if (err) return 1; - /* step 2: make sure trigger sources are unique and mutually compatible */ + /* step 2: trigger sources are unique and mutually compatible */ if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT) err++; @@ -1092,7 +863,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, if (err) return 2; - /* step 3: make sure arguments are trivially compatible */ + /* step 3: arguments are trivially compatible */ switch (cmd->start_src) { case TRIG_EXT: @@ -1103,8 +874,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, ~(CR_FLAGS_MASK & ~(CR_EDGE | CR_INVERT)); err++; } - if (!thisboard->has_ai_trig_invert && - (cmd->start_arg & CR_INVERT)) { + if (!thisboard->is_1602 && (cmd->start_arg & CR_INVERT)) { cmd->start_arg &= (CR_FLAGS_MASK & ~CR_INVERT); err++; } @@ -1198,9 +968,27 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, return 0; } +static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, + int rounding_flags) +{ + struct cb_pcidas_private *devpriv = dev->private; + + i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1), + &(devpriv->divisor2), ns, + rounding_flags & TRIG_ROUND_MASK); + + /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ + i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 1, + devpriv->divisor1, 2); + i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 2, + devpriv->divisor2, 2); +} + static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned int bits; @@ -1230,10 +1018,6 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, bits |= PACER_INT; outw(bits, devpriv->control_status + ADCMUX_CONT); -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "comedi: sent 0x%x to adcmux control\n", bits); -#endif - /* load counters */ if (cmd->convert_src == TRIG_TIMER) cb_pcidas_load_counters(dev, &cmd->convert_arg, @@ -1250,17 +1034,18 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, devpriv->adc_fifo_bits |= INTE; devpriv->adc_fifo_bits &= ~INT_MASK; if (cmd->flags & TRIG_WAKE_EOS) { - if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) - devpriv->adc_fifo_bits |= INT_EOS; /* interrupt end of burst */ - else - devpriv->adc_fifo_bits |= INT_FNE; /* interrupt fifo not empty */ + if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) { + /* interrupt end of burst */ + devpriv->adc_fifo_bits |= INT_EOS; + } else { + /* interrupt fifo not empty */ + devpriv->adc_fifo_bits |= INT_FNE; + } } else { - devpriv->adc_fifo_bits |= INT_FHF; /* interrupt fifo half full */ + /* interrupt fifo half full */ + devpriv->adc_fifo_bits |= INT_FHF; } -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "comedi: adc_fifo_bits are 0x%x\n", - devpriv->adc_fifo_bits); -#endif + /* enable (and clear) interrupts */ outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL, devpriv->control_status + INT_ADCFIFO); @@ -1272,11 +1057,12 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, bits |= SW_TRIGGER; else if (cmd->start_src == TRIG_EXT) { bits |= EXT_TRIGGER | TGEN | XTRCL; - if (thisboard->has_ai_trig_invert - && (cmd->start_arg & CR_INVERT)) - bits |= TGPOL; - if (thisboard->has_ai_trig_gated && (cmd->start_arg & CR_EDGE)) - bits |= TGSEL; + if (thisboard->is_1602) { + if (cmd->start_arg & CR_INVERT) + bits |= TGPOL; + if (cmd->start_arg & CR_EDGE) + bits |= TGSEL; + } } else { comedi_error(dev, "bug!"); return -1; @@ -1284,9 +1070,6 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) bits |= BURSTE; outw(bits, devpriv->control_status + TRIG_CONTSTAT); -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "comedi: sent 0x%x to trig control\n", bits); -#endif return 0; } @@ -1295,17 +1078,12 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; int err = 0; int tmp; - /* cmdtest tests a particular command to see if it is valid. - * Using the cmdtest ioctl, a user can create a valid cmd - * and then have it executes by the cmd ioctl. - * - * cmdtest returns 1,2,3,4 or 0, depending on which tests - * the command passes. */ - - /* step 1: make sure trigger sources are trivially valid */ + /* step 1: trigger sources are trivially valid */ tmp = cmd->start_src; cmd->start_src &= TRIG_INT; @@ -1335,7 +1113,7 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, if (err) return 1; - /* step 2: make sure trigger sources are unique and mutually compatible */ + /* step 2: trigger sources are unique and mutually compatible */ if (cmd->scan_begin_src != TRIG_TIMER && cmd->scan_begin_src != TRIG_EXT) @@ -1346,7 +1124,7 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, if (err) return 2; - /* step 3: make sure arguments are trivially compatible */ + /* step 3: arguments are trivially compatible */ if (cmd->start_arg != 0) { cmd->start_arg = 0; @@ -1407,9 +1185,77 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, return 0; } +/* cancel analog input command */ +static int cb_pcidas_cancel(struct comedi_device *dev, + struct comedi_subdevice *s) +{ + struct cb_pcidas_private *devpriv = dev->private; + unsigned long flags; + + spin_lock_irqsave(&dev->spinlock, flags); + /* disable interrupts */ + devpriv->adc_fifo_bits &= ~INTE & ~EOAIE; + outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); + spin_unlock_irqrestore(&dev->spinlock, flags); + + /* disable start trigger source and burst mode */ + outw(0, devpriv->control_status + TRIG_CONTSTAT); + /* software pacer source */ + outw(0, devpriv->control_status + ADCMUX_CONT); + + return 0; +} + +static int cb_pcidas_ao_inttrig(struct comedi_device *dev, + struct comedi_subdevice *s, + unsigned int trig_num) +{ + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; + unsigned int num_bytes, num_points = thisboard->fifo_size; + struct comedi_async *async = s->async; + struct comedi_cmd *cmd = &s->async->cmd; + unsigned long flags; + + if (trig_num != 0) + return -EINVAL; + + /* load up fifo */ + if (cmd->stop_src == TRIG_COUNT && devpriv->ao_count < num_points) + num_points = devpriv->ao_count; + + num_bytes = cfc_read_array_from_buffer(s, devpriv->ao_buffer, + num_points * sizeof(short)); + num_points = num_bytes / sizeof(short); + + if (cmd->stop_src == TRIG_COUNT) + devpriv->ao_count -= num_points; + /* write data to board's fifo */ + outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes); + + /* enable dac half-full and empty interrupts */ + spin_lock_irqsave(&dev->spinlock, flags); + devpriv->adc_fifo_bits |= DAEMIE | DAHFIE; + + /* enable and clear interrupts */ + outw(devpriv->adc_fifo_bits | DAEMI | DAHFI, + devpriv->control_status + INT_ADCFIFO); + + /* start dac */ + devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY; + outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); + + spin_unlock_irqrestore(&dev->spinlock, flags); + + async->inttrig = NULL; + + return 0; +} + static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct cb_pcidas_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned int i; @@ -1473,59 +1319,88 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, return 0; } -static int cb_pcidas_ao_inttrig(struct comedi_device *dev, - struct comedi_subdevice *s, - unsigned int trig_num) +/* cancel analog output command */ +static int cb_pcidas_ao_cancel(struct comedi_device *dev, + struct comedi_subdevice *s) { - unsigned int num_bytes, num_points = thisboard->fifo_size; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &s->async->cmd; + struct cb_pcidas_private *devpriv = dev->private; unsigned long flags; - if (trig_num != 0) - return -EINVAL; + spin_lock_irqsave(&dev->spinlock, flags); + /* disable interrupts */ + devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE; + outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); - /* load up fifo */ - if (cmd->stop_src == TRIG_COUNT && devpriv->ao_count < num_points) - num_points = devpriv->ao_count; + /* disable output */ + devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK; + outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); + spin_unlock_irqrestore(&dev->spinlock, flags); - num_bytes = cfc_read_array_from_buffer(s, devpriv->ao_buffer, - num_points * sizeof(short)); - num_points = num_bytes / sizeof(short); + return 0; +} - if (cmd->stop_src == TRIG_COUNT) - devpriv->ao_count -= num_points; - /* write data to board's fifo */ - outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes); +static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status) +{ + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; + struct comedi_subdevice *s = dev->write_subdev; + struct comedi_async *async = s->async; + struct comedi_cmd *cmd = &async->cmd; + unsigned int half_fifo = thisboard->fifo_size / 2; + unsigned int num_points; + unsigned long flags; - /* enable dac half-full and empty interrupts */ - spin_lock_irqsave(&dev->spinlock, flags); - devpriv->adc_fifo_bits |= DAEMIE | DAHFIE; -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "comedi: adc_fifo_bits are 0x%x\n", - devpriv->adc_fifo_bits); -#endif - /* enable and clear interrupts */ - outw(devpriv->adc_fifo_bits | DAEMI | DAHFI, - devpriv->control_status + INT_ADCFIFO); + async->events = 0; - /* start dac */ - devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY; - outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "comedi: sent 0x%x to dac control\n", - devpriv->ao_control_bits); -#endif - spin_unlock_irqrestore(&dev->spinlock, flags); + if (status & DAEMI) { + /* clear dac empty interrupt latch */ + spin_lock_irqsave(&dev->spinlock, flags); + outw(devpriv->adc_fifo_bits | DAEMI, + devpriv->control_status + INT_ADCFIFO); + spin_unlock_irqrestore(&dev->spinlock, flags); + if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) { + if (cmd->stop_src == TRIG_NONE || + (cmd->stop_src == TRIG_COUNT + && devpriv->ao_count)) { + comedi_error(dev, "dac fifo underflow"); + cb_pcidas_ao_cancel(dev, s); + async->events |= COMEDI_CB_ERROR; + } + async->events |= COMEDI_CB_EOA; + } + } else if (status & DAHFI) { + unsigned int num_bytes; - async->inttrig = NULL; + /* figure out how many points we are writing to fifo */ + num_points = half_fifo; + if (cmd->stop_src == TRIG_COUNT && + devpriv->ao_count < num_points) + num_points = devpriv->ao_count; + num_bytes = + cfc_read_array_from_buffer(s, devpriv->ao_buffer, + num_points * sizeof(short)); + num_points = num_bytes / sizeof(short); - return 0; + if (async->cmd.stop_src == TRIG_COUNT) + devpriv->ao_count -= num_points; + /* write data to board's fifo */ + outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, + num_points); + /* clear half-full interrupt latch */ + spin_lock_irqsave(&dev->spinlock, flags); + outw(devpriv->adc_fifo_bits | DAHFI, + devpriv->control_status + INT_ADCFIFO); + spin_unlock_irqrestore(&dev->spinlock, flags); + } + + comedi_event(dev, s); } static irqreturn_t cb_pcidas_interrupt(int irq, void *d) { struct comedi_device *dev = (struct comedi_device *)d; + const struct cb_pcidas_board *thisboard = comedi_board(dev); + struct cb_pcidas_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async; int status, s5933_status; @@ -1541,11 +1416,6 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d) async->events = 0; s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR); -#ifdef CB_PCIDAS_DEBUG - dev_dbg(dev->hw_dev, "intcsr 0x%x\n", s5933_status); - dev_dbg(dev->hw_dev, "mbef 0x%x\n", - inl(devpriv->s5933_config + AMCC_OP_REG_MBEF)); -#endif if ((INTCSR_INTR_ASSERTED & s5933_status) == 0) return IRQ_NONE; @@ -1557,10 +1427,6 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d) devpriv->s5933_config + AMCC_OP_REG_INTCSR); status = inw(devpriv->control_status + INT_ADCFIFO); -#ifdef CB_PCIDAS_DEBUG - if ((status & (INT | EOAI | LADFUL | DAHFI | DAEMI)) == 0) - comedi_error(dev, "spurious interrupt"); -#endif /* check for analog output interrupt */ if (status & (DAHFI | DAEMI)) @@ -1596,7 +1462,9 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d) INT_ADCFIFO)) == 0) break; cfc_write_to_buffer(s, inw(devpriv->adc_fifo)); - if (async->cmd.stop_src == TRIG_COUNT && --devpriv->count == 0) { /* end of acquisition */ + if (async->cmd.stop_src == TRIG_COUNT && + --devpriv->count == 0) { + /* end of acquisition */ cb_pcidas_cancel(dev, s); async->events |= COMEDI_CB_EOA; break; @@ -1633,243 +1501,226 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d) return IRQ_HANDLED; } -static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status) +static struct pci_dev *cb_pcidas_find_pci_device(struct comedi_device *dev, + struct comedi_devconfig *it) { - struct comedi_subdevice *s = dev->write_subdev; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned int half_fifo = thisboard->fifo_size / 2; - unsigned int num_points; - unsigned long flags; - - async->events = 0; + const struct cb_pcidas_board *thisboard; + struct pci_dev *pcidev = NULL; + int bus = it->options[0]; + int slot = it->options[1]; + int i; - if (status & DAEMI) { - /* clear dac empty interrupt latch */ - spin_lock_irqsave(&dev->spinlock, flags); - outw(devpriv->adc_fifo_bits | DAEMI, - devpriv->control_status + INT_ADCFIFO); - spin_unlock_irqrestore(&dev->spinlock, flags); - if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) { - if (cmd->stop_src == TRIG_NONE || - (cmd->stop_src == TRIG_COUNT - && devpriv->ao_count)) { - comedi_error(dev, "dac fifo underflow"); - cb_pcidas_ao_cancel(dev, s); - async->events |= COMEDI_CB_ERROR; + for_each_pci_dev(pcidev) { + /* is it not a computer boards card? */ + if (pcidev->vendor != PCI_VENDOR_ID_CB) + continue; + /* loop through cards supported by this driver */ + for (i = 0; i < ARRAY_SIZE(cb_pcidas_boards); i++) { + thisboard = &cb_pcidas_boards[i]; + if (thisboard->device_id != pcidev->device) + continue; + /* was a particular bus/slot requested? */ + if (bus || slot) { + /* are we on the wrong bus/slot? */ + if (pcidev->bus->number != bus || + PCI_SLOT(pcidev->devfn) != slot) { + continue; + } } - async->events |= COMEDI_CB_EOA; + dev_dbg(dev->class_dev, + "Found %s on bus %i, slot %i\n", + thisboard->name, + pcidev->bus->number, PCI_SLOT(pcidev->devfn)); + dev->board_ptr = thisboard; + return pcidev; } - } else if (status & DAHFI) { - unsigned int num_bytes; - - /* figure out how many points we are writing to fifo */ - num_points = half_fifo; - if (cmd->stop_src == TRIG_COUNT && - devpriv->ao_count < num_points) - num_points = devpriv->ao_count; - num_bytes = - cfc_read_array_from_buffer(s, devpriv->ao_buffer, - num_points * sizeof(short)); - num_points = num_bytes / sizeof(short); - - if (async->cmd.stop_src == TRIG_COUNT) - devpriv->ao_count -= num_points; - /* write data to board's fifo */ - outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, - num_points); - /* clear half-full interrupt latch */ - spin_lock_irqsave(&dev->spinlock, flags); - outw(devpriv->adc_fifo_bits | DAHFI, - devpriv->control_status + INT_ADCFIFO); - spin_unlock_irqrestore(&dev->spinlock, flags); } - - comedi_event(dev, s); + dev_err(dev->class_dev, "No supported card found\n"); + return NULL; } -/* cancel analog input command */ -static int cb_pcidas_cancel(struct comedi_device *dev, - struct comedi_subdevice *s) +static int cb_pcidas_attach(struct comedi_device *dev, + struct comedi_devconfig *it) { - unsigned long flags; - - spin_lock_irqsave(&dev->spinlock, flags); - /* disable interrupts */ - devpriv->adc_fifo_bits &= ~INTE & ~EOAIE; - outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); - spin_unlock_irqrestore(&dev->spinlock, flags); + const struct cb_pcidas_board *thisboard; + struct cb_pcidas_private *devpriv; + struct pci_dev *pcidev; + struct comedi_subdevice *s; + int i; + int ret; - /* disable start trigger source and burst mode */ - outw(0, devpriv->control_status + TRIG_CONTSTAT); - /* software pacer source */ - outw(0, devpriv->control_status + ADCMUX_CONT); + if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0) + return -ENOMEM; + devpriv = dev->private; - return 0; -} + pcidev = cb_pcidas_find_pci_device(dev, it); + if (!pcidev) + return -EIO; + comedi_set_hw_dev(dev, &pcidev->dev); + thisboard = comedi_board(dev); -/* cancel analog output command */ -static int cb_pcidas_ao_cancel(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - unsigned long flags; + if (comedi_pci_enable(pcidev, dev->driver->driver_name)) { + dev_err(dev->class_dev, + "Failed to enable PCI device and request regions\n"); + return -EIO; + } - spin_lock_irqsave(&dev->spinlock, flags); - /* disable interrupts */ - devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE; - outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); + devpriv->s5933_config = pci_resource_start(pcidev, 0); + devpriv->control_status = pci_resource_start(pcidev, 1); + devpriv->adc_fifo = pci_resource_start(pcidev, 2); + devpriv->pacer_counter_dio = pci_resource_start(pcidev, 3); + if (thisboard->ao_nchan) + devpriv->ao_registers = pci_resource_start(pcidev, 4); - /* disable output */ - devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK; - outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); - spin_unlock_irqrestore(&dev->spinlock, flags); + /* disable and clear interrupts on amcc s5933 */ + outl(INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); - return 0; -} + if (request_irq(pcidev->irq, cb_pcidas_interrupt, + IRQF_SHARED, dev->driver->driver_name, dev)) { + dev_dbg(dev->class_dev, "unable to allocate irq %d\n", + pcidev->irq); + return -EINVAL; + } + dev->irq = pcidev->irq; -static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, - int rounding_flags) -{ - i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1), - &(devpriv->divisor2), ns, - rounding_flags & TRIG_ROUND_MASK); + dev->board_name = thisboard->name; - /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ - i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 1, - devpriv->divisor1, 2); - i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 2, - devpriv->divisor2, 2); -} + ret = comedi_alloc_subdevices(dev, 7); + if (ret) + return ret; -static void write_calibration_bitstream(struct comedi_device *dev, - unsigned int register_bits, - unsigned int bitstream, - unsigned int bitstream_length) -{ - static const int write_delay = 1; - unsigned int bit; + s = dev->subdevices + 0; + /* analog input subdevice */ + dev->read_subdev = s; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; + /* WARNING: Number of inputs in differential mode is ignored */ + s->n_chan = thisboard->ai_nchan; + s->len_chanlist = thisboard->ai_nchan; + s->maxdata = (1 << thisboard->ai_bits) - 1; + s->range_table = thisboard->ranges; + s->insn_read = cb_pcidas_ai_rinsn; + s->insn_config = ai_config_insn; + s->do_cmd = cb_pcidas_ai_cmd; + s->do_cmdtest = cb_pcidas_ai_cmdtest; + s->cancel = cb_pcidas_cancel; - for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { - if (bitstream & bit) - register_bits |= SERIAL_DATA_IN_BIT; - else - register_bits &= ~SERIAL_DATA_IN_BIT; - udelay(write_delay); - outw(register_bits, devpriv->control_status + CALIBRATION_REG); + /* analog output subdevice */ + s = dev->subdevices + 1; + if (thisboard->ao_nchan) { + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; + s->n_chan = thisboard->ao_nchan; + /* + * analog out resolution is the same as + * analog input resolution, so use ai_bits + */ + s->maxdata = (1 << thisboard->ai_bits) - 1; + s->range_table = &cb_pcidas_ao_ranges; + s->insn_read = cb_pcidas_ao_readback_insn; + if (thisboard->has_ao_fifo) { + dev->write_subdev = s; + s->subdev_flags |= SDF_CMD_WRITE; + s->insn_write = cb_pcidas_ao_fifo_winsn; + s->do_cmdtest = cb_pcidas_ao_cmdtest; + s->do_cmd = cb_pcidas_ao_cmd; + s->cancel = cb_pcidas_ao_cancel; + } else { + s->insn_write = cb_pcidas_ao_nofifo_winsn; + } + } else { + s->type = COMEDI_SUBD_UNUSED; } -} -static int caldac_8800_write(struct comedi_device *dev, unsigned int address, - uint8_t value) -{ - static const int num_caldac_channels = 8; - static const int bitstream_length = 11; - unsigned int bitstream = ((address & 0x7) << 8) | value; - static const int caldac_8800_udelay = 1; + /* 8255 */ + s = dev->subdevices + 2; + ret = subdev_8255_init(dev, s, NULL, + devpriv->pacer_counter_dio + DIO_8255); + if (ret) + return ret; - if (address >= num_caldac_channels) { - comedi_error(dev, "illegal caldac channel"); - return -1; - } + /* serial EEPROM, */ + s = dev->subdevices + 3; + s->type = COMEDI_SUBD_MEMORY; + s->subdev_flags = SDF_READABLE | SDF_INTERNAL; + s->n_chan = 256; + s->maxdata = 0xff; + s->insn_read = eeprom_read_insn; - if (value == devpriv->caldac_value[address]) - return 1; + /* 8800 caldac */ + s = dev->subdevices + 4; + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + s->n_chan = NUM_CHANNELS_8800; + s->maxdata = 0xff; + s->insn_read = caldac_read_insn; + s->insn_write = caldac_write_insn; + for (i = 0; i < s->n_chan; i++) + caldac_8800_write(dev, i, s->maxdata / 2); - devpriv->caldac_value[address] = value; + /* trim potentiometer */ + s = dev->subdevices + 5; + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + if (thisboard->trimpot == AD7376) { + s->n_chan = NUM_CHANNELS_7376; + s->maxdata = 0x7f; + } else { + s->n_chan = NUM_CHANNELS_8402; + s->maxdata = 0xff; + } + s->insn_read = trimpot_read_insn; + s->insn_write = trimpot_write_insn; + for (i = 0; i < s->n_chan; i++) + cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); - write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream, - bitstream_length); + /* dac08 caldac */ + s = dev->subdevices + 6; + if (thisboard->has_dac08) { + s->type = COMEDI_SUBD_CALIB; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; + s->n_chan = NUM_CHANNELS_DAC08; + s->insn_read = dac08_read_insn; + s->insn_write = dac08_write_insn; + s->maxdata = 0xff; + dac08_write(dev, s->maxdata / 2); + } else + s->type = COMEDI_SUBD_UNUSED; - udelay(caldac_8800_udelay); - outw(cal_enable_bits(dev) | SELECT_8800_BIT, - devpriv->control_status + CALIBRATION_REG); - udelay(caldac_8800_udelay); - outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); + /* make sure mailbox 4 is empty */ + inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); + /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ + devpriv->s5933_intcsr_bits = + INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | + INTCSR_INBOX_FULL_INT; + /* clear and enable interrupt on amcc s5933 */ + outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); return 1; } -static int trimpot_7376_write(struct comedi_device *dev, uint8_t value) -{ - static const int bitstream_length = 7; - unsigned int bitstream = value & 0x7f; - unsigned int register_bits; - static const int ad7376_udelay = 1; - - register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; - udelay(ad7376_udelay); - outw(register_bits, devpriv->control_status + CALIBRATION_REG); - - write_calibration_bitstream(dev, register_bits, bitstream, - bitstream_length); - - udelay(ad7376_udelay); - outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); - - return 0; -} - -/* For 1602/16 only - * ch 0 : adc gain - * ch 1 : adc postgain offset */ -static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, - uint8_t value) -{ - static const int bitstream_length = 10; - unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff); - unsigned int register_bits; - static const int ad8402_udelay = 1; - - register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; - udelay(ad8402_udelay); - outw(register_bits, devpriv->control_status + CALIBRATION_REG); - - write_calibration_bitstream(dev, register_bits, bitstream, - bitstream_length); - - udelay(ad8402_udelay); - outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); - - return 0; -} - -static int wait_for_nvram_ready(unsigned long s5933_base_addr) +static void cb_pcidas_detach(struct comedi_device *dev) { - static const int timeout = 1000; - unsigned int i; + struct cb_pcidas_private *devpriv = dev->private; + struct pci_dev *pcidev = comedi_to_pci_dev(dev); - for (i = 0; i < timeout; i++) { - if ((inb(s5933_base_addr + - AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY) - == 0) - return 0; - udelay(1); + if (devpriv) { + if (devpriv->s5933_config) { + outl(INTCSR_INBOX_INTR_STATUS, + devpriv->s5933_config + AMCC_OP_REG_INTCSR); + } + } + if (dev->irq) + free_irq(dev->irq, dev); + if (dev->subdevices) + subdev_8255_cleanup(dev, dev->subdevices + 2); + if (pcidev) { + if (devpriv->s5933_config) + comedi_pci_disable(pcidev); + pci_dev_put(pcidev); } - return -1; -} - -static int nvram_read(struct comedi_device *dev, unsigned int address, - uint8_t *data) -{ - unsigned long iobase = devpriv->s5933_config; - - if (wait_for_nvram_ready(iobase) < 0) - return -ETIMEDOUT; - - outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_LOW_ADDR, - iobase + AMCC_OP_REG_MCSR_NVCMD); - outb(address & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); - outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_HIGH_ADDR, - iobase + AMCC_OP_REG_MCSR_NVCMD); - outb((address >> 8) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); - outb(MCSR_NV_ENABLE | MCSR_NV_READ, iobase + AMCC_OP_REG_MCSR_NVCMD); - - if (wait_for_nvram_ready(iobase) < 0) - return -ETIMEDOUT; - - *data = inb(iobase + AMCC_OP_REG_MCSR_NVDATA); - - return 0; } static struct comedi_driver cb_pcidas_driver = { |