// SPDX-License-Identifier: GPL-2.0+ /* * usbduxsigma.c * Copyright (C) 2011-2015 Bernd Porr, [email protected] */ /* * Driver: usbduxsigma * Description: University of Stirling USB DAQ & INCITE Technology Limited * Devices: [ITL] USB-DUX-SIGMA (usbduxsigma) * Author: Bernd Porr <[email protected]> * Updated: 20 July 2015 * Status: stable */ /* * I must give credit here to Chris Baugher who * wrote the driver for AT-MIO-16d. I used some parts of this * driver. I also must give credits to David Brownell * who supported me with the USB development. * * Note: the raw data from the A/D converter is 24 bit big endian * anything else is little endian to/from the dux board * * * Revision history: * 0.1: initial version * 0.2: all basic functions implemented, digital I/O only for one port * 0.3: proper vendor ID and driver name * 0.4: fixed D/A voltage range * 0.5: various bug fixes, health check at startup * 0.6: corrected wrong input range * 0.7: rewrite code that urb->interval is always 1 */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/input.h> #include <linux/fcntl.h> #include <linux/compiler.h> #include <linux/unaligned.h> #include <linux/comedi/comedi_usb.h> /* timeout for the USB-transfer in ms*/ #define BULK_TIMEOUT … /* constants for "firmware" upload and download */ #define FIRMWARE … #define FIRMWARE_MAX_LEN … #define USBDUXSUB_FIRMWARE … #define VENDOR_DIR_IN … #define VENDOR_DIR_OUT … /* internal addresses of the 8051 processor */ #define USBDUXSUB_CPUCS … /* 300Hz max frequ under PWM */ #define MIN_PWM_PERIOD … /* Default PWM frequency */ #define PWM_DEFAULT_PERIOD … /* Number of channels (16 AD and offset)*/ #define NUMCHANNELS … /* Size of one A/D value */ #define SIZEADIN … /* * Size of the async input-buffer IN BYTES, the DIO state is transmitted * as the first byte. */ #define SIZEINBUF … /* 16 bytes. */ #define SIZEINSNBUF … /* Number of DA channels */ #define NUMOUTCHANNELS … /* size of one value for the D/A converter: channel and value */ #define SIZEDAOUT … /* * Size of the output-buffer in bytes * Actually only the first 4 triplets are used but for the * high speed mode we need to pad it to 8 (microframes). */ #define SIZEOUTBUF … /* * Size of the buffer for the dux commands: just now max size is determined * by the analogue out + command byte + panic bytes... */ #define SIZEOFDUXBUFFER … /* Number of in-URBs which receive the data: min=2 */ #define NUMOFINBUFFERSFULL … /* Number of out-URBs which send the data: min=2 */ #define NUMOFOUTBUFFERSFULL … /* Number of in-URBs which receive the data: min=5 */ /* must have more buffers due to buggy USB ctr */ #define NUMOFINBUFFERSHIGH … /* Number of out-URBs which send the data: min=5 */ /* must have more buffers due to buggy USB ctr */ #define NUMOFOUTBUFFERSHIGH … /* number of retries to get the right dux command */ #define RETRIES … /* bulk transfer commands to usbduxsigma */ #define USBBUXSIGMA_AD_CMD … #define USBDUXSIGMA_DA_CMD … #define USBDUXSIGMA_DIO_CFG_CMD … #define USBDUXSIGMA_DIO_BITS_CMD … #define USBDUXSIGMA_SINGLE_AD_CMD … #define USBDUXSIGMA_PWM_ON_CMD … #define USBDUXSIGMA_PWM_OFF_CMD … static const struct comedi_lrange usbduxsigma_ai_range = …; struct usbduxsigma_private { … }; static void usbduxsigma_unlink_urbs(struct urb **urbs, int num_urbs) { … } static void usbduxsigma_ai_stop(struct comedi_device *dev, int do_unlink) { … } static int usbduxsigma_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void usbduxsigma_ai_handle_urb(struct comedi_device *dev, struct comedi_subdevice *s, struct urb *urb) { … } static void usbduxsigma_ai_urb_complete(struct urb *urb) { … } static void usbduxsigma_ao_stop(struct comedi_device *dev, int do_unlink) { … } static int usbduxsigma_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void usbduxsigma_ao_handle_urb(struct comedi_device *dev, struct comedi_subdevice *s, struct urb *urb) { … } static void usbduxsigma_ao_urb_complete(struct urb *urb) { … } static int usbduxsigma_submit_urbs(struct comedi_device *dev, struct urb **urbs, int num_urbs, int input_urb) { … } static int usbduxsigma_chans_to_interval(int num_chan) { … } static int usbduxsigma_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } /* * creates the ADC command for the MAX1271 * range is the range value from comedi */ static void create_adc_command(unsigned int chan, u8 *muxsg0, u8 *muxsg1) { … } static int usbbuxsigma_send_cmd(struct comedi_device *dev, int cmd_type) { … } static int usbduxsigma_receive_cmd(struct comedi_device *dev, int command) { … } static int usbduxsigma_ai_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int trig_num) { … } static int usbduxsigma_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int usbduxsigma_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int trig_num) { … } static int usbduxsigma_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static int usbduxsigma_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int usbduxsigma_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static void usbduxsigma_pwm_stop(struct comedi_device *dev, int do_unlink) { … } static int usbduxsigma_pwm_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void usbduxsigma_pwm_urb_complete(struct urb *urb) { … } static int usbduxsigma_submit_pwm_urb(struct comedi_device *dev) { … } static int usbduxsigma_pwm_period(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int period) { … } static int usbduxsigma_pwm_start(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void usbduxsigma_pwm_pattern(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int chan, unsigned int value, unsigned int sign) { … } static int usbduxsigma_pwm_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_pwm_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int usbduxsigma_getstatusinfo(struct comedi_device *dev, int chan) { … } static int usbduxsigma_firmware_upload(struct comedi_device *dev, const u8 *data, size_t size, unsigned long context) { … } static int usbduxsigma_alloc_usb_buffers(struct comedi_device *dev) { … } static void usbduxsigma_free_usb_buffers(struct comedi_device *dev) { … } static int usbduxsigma_auto_attach(struct comedi_device *dev, unsigned long context_unused) { … } static void usbduxsigma_detach(struct comedi_device *dev) { … } static struct comedi_driver usbduxsigma_driver = …; static int usbduxsigma_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) { … } static const struct usb_device_id usbduxsigma_usb_table[] = …; MODULE_DEVICE_TABLE(usb, usbduxsigma_usb_table); static struct usb_driver usbduxsigma_usb_driver = …; module_comedi_usb_driver(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_FIRMWARE(…);
Codebase Browser
linux