// SPDX-License-Identifier: GPL-2.0+ /* * dt282x.c * Comedi driver for Data Translation DT2821 series * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <[email protected]> */ /* * Driver: dt282x * Description: Data Translation DT2821 series (including DT-EZ) * Author: ds * Devices: [Data Translation] DT2821 (dt2821), DT2821-F-16SE (dt2821-f), * DT2821-F-8DI (dt2821-f), DT2821-G-16SE (dt2821-g), * DT2821-G-8DI (dt2821-g), DT2823 (dt2823), DT2824-PGH (dt2824-pgh), * DT2824-PGL (dt2824-pgl), DT2825 (dt2825), DT2827 (dt2827), * DT2828 (dt2828), DT2928 (dt2829), DT21-EZ (dt21-ez), DT23-EZ (dt23-ez), * DT24-EZ (dt24-ez), DT24-EZ-PGL (dt24-ez-pgl) * Status: complete * Updated: Wed, 22 Aug 2001 17:11:34 -0700 * * Configuration options: * [0] - I/O port base address * [1] - IRQ (optional, required for async command support) * [2] - DMA 1 (optional, required for async command support) * [3] - DMA 2 (optional, required for async command support) * [4] - AI jumpered for 0=single ended, 1=differential * [5] - AI jumpered for 0=straight binary, 1=2's complement * [6] - AO 0 data format (deprecated, see below) * [7] - AO 1 data format (deprecated, see below) * [8] - AI jumpered for 0=[-10,10]V, 1=[0,10], 2=[-5,5], 3=[0,5] * [9] - AO channel 0 range (deprecated, see below) * [10]- AO channel 1 range (deprecated, see below) * * Notes: * - AO commands might be broken. * - If you try to run a command on both the AI and AO subdevices * simultaneously, bad things will happen. The driver needs to * be fixed to check for this situation and return an error. * - AO range is not programmable. The AO subdevice has a range_table * containing all the possible analog output ranges. Use the range * that matches your board configuration to convert between data * values and physical units. The format of the data written to the * board is handled automatically based on the unipolar/bipolar * range that is selected. */ #include <linux/module.h> #include <linux/delay.h> #include <linux/gfp.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/comedi/comedidev.h> #include <linux/comedi/comedi_isadma.h> /* * Register map */ #define DT2821_ADCSR_REG … #define DT2821_ADCSR_ADERR … #define DT2821_ADCSR_ADCLK … #define DT2821_ADCSR_MUXBUSY … #define DT2821_ADCSR_ADDONE … #define DT2821_ADCSR_IADDONE … #define DT2821_ADCSR_GS(x) … #define DT2821_ADCSR_CHAN(x) … #define DT2821_CHANCSR_REG … #define DT2821_CHANCSR_LLE … #define DT2821_CHANCSR_TO_PRESLA(x) … #define DT2821_CHANCSR_NUMB(x) … #define DT2821_ADDAT_REG … #define DT2821_DACSR_REG … #define DT2821_DACSR_DAERR … #define DT2821_DACSR_YSEL(x) … #define DT2821_DACSR_SSEL … #define DT2821_DACSR_DACRDY … #define DT2821_DACSR_IDARDY … #define DT2821_DACSR_DACLK … #define DT2821_DACSR_HBOE … #define DT2821_DACSR_LBOE … #define DT2821_DADAT_REG … #define DT2821_DIODAT_REG … #define DT2821_SUPCSR_REG … #define DT2821_SUPCSR_DMAD … #define DT2821_SUPCSR_ERRINTEN … #define DT2821_SUPCSR_CLRDMADNE … #define DT2821_SUPCSR_DDMA … #define DT2821_SUPCSR_DS(x) … #define DT2821_SUPCSR_DS_PIO … #define DT2821_SUPCSR_DS_AD_CLK … #define DT2821_SUPCSR_DS_DA_CLK … #define DT2821_SUPCSR_DS_AD_TRIG … #define DT2821_SUPCSR_BUFFB … #define DT2821_SUPCSR_SCDN … #define DT2821_SUPCSR_DACON … #define DT2821_SUPCSR_ADCINIT … #define DT2821_SUPCSR_DACINIT … #define DT2821_SUPCSR_PRLD … #define DT2821_SUPCSR_STRIG … #define DT2821_SUPCSR_XTRIG … #define DT2821_SUPCSR_XCLK … #define DT2821_SUPCSR_BDINIT … #define DT2821_TMRCTR_REG … #define DT2821_TMRCTR_PRESCALE(x) … #define DT2821_TMRCTR_DIVIDER(x) … /* Pacer Clock */ #define DT2821_OSC_BASE … #define DT2821_PRESCALE(x) … #define DT2821_PRESCALE_MAX … #define DT2821_DIVIDER_MAX … #define DT2821_OSC_MAX … static const struct comedi_lrange range_dt282x_ai_lo_bipolar = …; static const struct comedi_lrange range_dt282x_ai_lo_unipolar = …; static const struct comedi_lrange range_dt282x_ai_5_bipolar = …; static const struct comedi_lrange range_dt282x_ai_5_unipolar = …; static const struct comedi_lrange range_dt282x_ai_hi_bipolar = …; static const struct comedi_lrange range_dt282x_ai_hi_unipolar = …; /* * The Analog Output range is set per-channel using jumpers on the board. * All of these ranges may not be available on some DT2821 series boards. * The default jumper setting has both channels set for +/-10V output. */ static const struct comedi_lrange dt282x_ao_range = …; struct dt282x_board { … }; static const struct dt282x_board boardtypes[] = …; struct dt282x_private { … }; static int dt282x_prep_ai_dma(struct comedi_device *dev, int dma_index, int n) { … } static int dt282x_prep_ao_dma(struct comedi_device *dev, int dma_index, int n) { … } static void dt282x_disable_dma(struct comedi_device *dev) { … } static unsigned int dt282x_ns_to_timer(unsigned int *ns, unsigned int flags) { … } static void dt282x_munge(struct comedi_device *dev, struct comedi_subdevice *s, unsigned short *buf, unsigned int nbytes) { … } static unsigned int dt282x_ao_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s, int cur_dma) { … } static void dt282x_ao_dma_interrupt(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void dt282x_ai_dma_interrupt(struct comedi_device *dev, struct comedi_subdevice *s) { … } static irqreturn_t dt282x_interrupt(int irq, void *d) { … } static void dt282x_load_changain(struct comedi_device *dev, int n, unsigned int *chanlist) { … } static int dt282x_ai_timeout(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned long context) { … } /* * Performs a single A/D conversion. * - Put channel/gain into channel-gain list * - preload multiplexer * - trigger conversion and wait for it to finish */ static int dt282x_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int dt282x_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int dt282x_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int dt282x_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int dt282x_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int trig_num) { … } static int dt282x_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int dt282x_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int dt282x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int dt282x_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static const struct comedi_lrange *const ai_range_table[] = …; static const struct comedi_lrange *const ai_range_pgl_table[] = …; static const struct comedi_lrange *opt_ai_range_lkup(int ispgl, int x) { … } static void dt282x_alloc_dma(struct comedi_device *dev, struct comedi_devconfig *it) { … } static void dt282x_free_dma(struct comedi_device *dev) { … } static int dt282x_initialize(struct comedi_device *dev) { … } static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) { … } static void dt282x_detach(struct comedi_device *dev) { … } static struct comedi_driver dt282x_driver = …; module_comedi_driver(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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