diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-11-18 14:23:41 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-06 13:52:21 -0800 |
commit | e54fb9c184a250fc80c48110ae42068bb0237a13 (patch) | |
tree | cccdd34ed23769916b3f4f8ac8940f1db6dc3a32 | |
parent | 8fa07567bf5d824537839e6984a571daeed2c7fc (diff) | |
download | op-kernel-dev-e54fb9c184a250fc80c48110ae42068bb0237a13.zip op-kernel-dev-e54fb9c184a250fc80c48110ae42068bb0237a13.tar.gz |
Staging: comedi: usbdux: remove // comments
This converts all // comments to be /* */
Cc: Bernd Porr <BerndPorr@f2s.com>
Cc: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r-- | drivers/staging/comedi/drivers/usbdux.c | 713 |
1 files changed, 364 insertions, 349 deletions
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index 3c51607a..ba4e3fd 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -78,8 +78,8 @@ sampling rate. If you sample two channels you get 4kHz and so on. * */ -// generates loads of debug info -// #define NOISY_DUX_DEBUGBUG +/* generates loads of debug info */ +/* #define NOISY_DUX_DEBUGBUG */ #include <linux/kernel.h> #include <linux/module.h> @@ -96,111 +96,117 @@ sampling rate. If you sample two channels you get 4kHz and so on. #define BOARDNAME "usbdux" -// timeout for the USB-transfer +/* timeout for the USB-transfer */ #define EZTIMEOUT 30 -// constants for "firmware" upload and download +/* constants for "firmware" upload and download */ #define USBDUXSUB_FIRMWARE 0xA0 #define VENDOR_DIR_IN 0xC0 #define VENDOR_DIR_OUT 0x40 -// internal adresses of the 8051 processor +/* internal adresses of the 8051 processor */ #define USBDUXSUB_CPUCS 0xE600 -// the minor device number, major is 180 -// only for debugging purposes and to -// upload special firmware (programming the -// eeprom etc) which is not compatible with -// the comedi framwork +/* + * the minor device number, major is 180 only for debugging purposes and to + * upload special firmware (programming the eeprom etc) which is not compatible + * with the comedi framwork + */ #define USBDUXSUB_MINOR 32 -// max lenghth of the transfer-buffer for software upload +/* max lenghth of the transfer-buffer for software upload */ #define TB_LEN 0x2000 -// Input endpoint number: ISO/IRQ +/* Input endpoint number: ISO/IRQ */ #define ISOINEP 6 -// Output endpoint number: ISO/IRQ +/* Output endpoint number: ISO/IRQ */ #define ISOOUTEP 2 -// This EP sends DUX commands to USBDUX +/* This EP sends DUX commands to USBDUX */ #define COMMAND_OUT_EP 1 -// This EP receives the DUX commands from USBDUX +/* This EP receives the DUX commands from USBDUX */ #define COMMAND_IN_EP 8 -// Output endpoint for PWM +/* Output endpoint for PWM */ #define PWM_EP 4 -// 300Hz max frequ under PWM +/* 300Hz max frequ under PWM */ #define MIN_PWM_PERIOD ((long)(1E9/300)) -// Default PWM frequency +/* Default PWM frequency */ #define PWM_DEFAULT_PERIOD ((long)(1E9/100)) -// Number of channels +/* Number of channels */ #define NUMCHANNELS 8 -// Size of one A/D value +/* Size of one A/D value */ #define SIZEADIN ((sizeof(int16_t))) -// Size of the input-buffer IN BYTES -// Always multiple of 8 for 8 microframes which is needed in the highspeed mode +/* Size of the input-buffer IN BYTES */ +/* Always multiple of 8 for 8 microframes which is needed in the highspeed mode */ #define SIZEINBUF ((8*SIZEADIN)) -// 16 bytes. +/* 16 bytes. */ #define SIZEINSNBUF 16 -// Number of DA channels +/* Number of DA channels */ #define NUMOUTCHANNELS 8 -// size of one value for the D/A converter: channel and value +/* size of one value for the D/A converter: channel and value */ #define SIZEDAOUT ((sizeof(int8_t)+sizeof(int16_t))) -// 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). +/* + * 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 ((8*SIZEDAOUT)) -// Size of the buffer for the dux commands: just now max size is determined -// by the analogue out + command byte + panic bytes... +/* + * Size of the buffer for the dux commands: just now max size is determined + * by the analogue out + command byte + panic bytes... + */ #define SIZEOFDUXBUFFER ((8*SIZEDAOUT+2)) -// Number of in-URBs which receive the data: min=2 +/* Number of in-URBs which receive the data: min=2 */ #define NUMOFINBUFFERSFULL 5 -// Number of out-URBs which send the data: min=2 +/* Number of out-URBs which send the data: min=2 */ #define NUMOFOUTBUFFERSFULL 5 -// Number of in-URBs which receive the data: min=5 -#define NUMOFINBUFFERSHIGH 10 // must have more buffers due to buggy USB ctr +/* Number of in-URBs which receive the data: min=5 */ +/* must have more buffers due to buggy USB ctr */ +#define NUMOFINBUFFERSHIGH 10 -// Number of out-URBs which send the data: min=5 -#define NUMOFOUTBUFFERSHIGH 10 // must have more buffers due to buggy USB ctr +/* Number of out-URBs which send the data: min=5 */ +/* must have more buffers due to buggy USB ctr */ +#define NUMOFOUTBUFFERSHIGH 10 -// Total number of usbdux devices +/* Total number of usbdux devices */ #define NUMUSBDUX 16 -// Analogue in subdevice +/* Analogue in subdevice */ #define SUBDEV_AD 0 -// Analogue out subdevice +/* Analogue out subdevice */ #define SUBDEV_DA 1 -// Digital I/O +/* Digital I/O */ #define SUBDEV_DIO 2 -// counter +/* counter */ #define SUBDEV_COUNTER 3 -// timer aka pwm output +/* timer aka pwm output */ #define SUBDEV_PWM 4 -// number of retries to get the right dux command +/* number of retries to get the right dux command */ #define RETRIES 10 -///////////////////////////////////////////// -// comedi constants +/**************************************************/ +/* comedi constants */ static const comedi_lrange range_usbdux_ai_range = { 4, { BIP_RANGE(4.096), BIP_RANGE(4.096 / 2), @@ -219,83 +225,87 @@ static const comedi_lrange range_usbdux_ao_range = { 2, { * private structure of one subdevice */ -// This is the structure which holds all the data of this driver -// one sub device just now: A/D +/* + * This is the structure which holds all the data of + * this driver one sub device just now: A/D + */ typedef struct { - // attached? + /* attached? */ int attached; - // is it associated with a subdevice? + /* is it associated with a subdevice? */ int probed; - // pointer to the usb-device + /* pointer to the usb-device */ struct usb_device *usbdev; - // actual number of in-buffers + /* actual number of in-buffers */ int numOfInBuffers; - // actual number of out-buffers + /* actual number of out-buffers */ int numOfOutBuffers; - // ISO-transfer handling: buffers + /* ISO-transfer handling: buffers */ struct urb **urbIn; struct urb **urbOut; - // pwm-transfer handling + /* pwm-transfer handling */ struct urb *urbPwm; - // PWM period + /* PWM period */ lsampl_t pwmPeriod; - // PWM internal delay for the GPIF in the FX2 + /* PWM internal delay for the GPIF in the FX2 */ int8_t pwmDelay; - // size of the PWM buffer which holds the bit pattern + /* size of the PWM buffer which holds the bit pattern */ int sizePwmBuf; - // input buffer for the ISO-transfer + /* input buffer for the ISO-transfer */ int16_t *inBuffer; - // input buffer for single insn + /* input buffer for single insn */ int16_t *insnBuffer; - // output buffer for single DA outputs + /* output buffer for single DA outputs */ int16_t *outBuffer; - // interface number + /* interface number */ int ifnum; - // interface structure in 2.6 + /* interface structure in 2.6 */ struct usb_interface *interface; - // comedi device for the interrupt context + /* comedi device for the interrupt context */ comedi_device *comedidev; - // is it USB_SPEED_HIGH or not? + /* is it USB_SPEED_HIGH or not? */ short int high_speed; - // asynchronous command is running + /* asynchronous command is running */ short int ai_cmd_running; short int ao_cmd_running; - // pwm is running + /* pwm is running */ short int pwm_cmd_running; - // continous aquisition + /* continous aquisition */ short int ai_continous; short int ao_continous; - // number of samples to aquire + /* number of samples to aquire */ int ai_sample_count; int ao_sample_count; - // time between samples in units of the timer + /* time between samples in units of the timer */ unsigned int ai_timer; unsigned int ao_timer; - // counter between aquisitions + /* counter between aquisitions */ unsigned int ai_counter; unsigned int ao_counter; - // interval in frames/uframes + /* interval in frames/uframes */ unsigned int ai_interval; - // D/A commands + /* D/A commands */ int8_t *dac_commands; - // commands + /* commands */ int8_t *dux_commands; struct semaphore sem; } usbduxsub_t; -// The pointer to the private usb-data of the driver -// is also the private data for the comedi-device. -// This has to be global as the usb subsystem needs -// global variables. The other reason is that this -// structure must be there _before_ any comedi -// command is issued. The usb subsystem must be -// initialised before comedi can access it. +/* + * The pointer to the private usb-data of the driver is also the private data + * for the comedi-device. This has to be global as the usb subsystem needs + * global variables. The other reason is that this structure must be there + * _before_ any comedi command is issued. The usb subsystem must be initialised + * before comedi can access it. + */ static usbduxsub_t usbduxsub[NUMUSBDUX]; static DECLARE_MUTEX(start_stop_sem); -// Stops the data acquision -// It should be safe to call this function from any context +/* + * Stops the data acquision + * It should be safe to call this function from any context + */ static int usbduxsub_unlink_InURBs(usbduxsub_t *usbduxsub_tmp) { int i = 0; @@ -304,8 +314,8 @@ static int usbduxsub_unlink_InURBs(usbduxsub_t *usbduxsub_tmp) if (usbduxsub_tmp && usbduxsub_tmp->urbIn) { for (i = 0; i < usbduxsub_tmp->numOfInBuffers; i++) { if (usbduxsub_tmp->urbIn[i]) { - // We wait here until all transfers - // have been cancelled. + /* We wait here until all transfers have been + * cancelled. */ usb_kill_urb(usbduxsub_tmp->urbIn[i]); } #ifdef NOISY_DUX_DEBUGBUG @@ -335,7 +345,7 @@ static int usbdux_ai_stop(usbduxsub_t *this_usbduxsub, int do_unlink) #endif if (do_unlink) { - // stop aquistion + /* stop aquistion */ ret = usbduxsub_unlink_InURBs(this_usbduxsub); } @@ -344,15 +354,16 @@ static int usbdux_ai_stop(usbduxsub_t *this_usbduxsub, int do_unlink) return ret; } -// This will cancel a running acquisition operation. -// This is called by comedi but never from inside the -// driver. +/* + * This will cancel a running acquisition operation. + * This is called by comedi but never from inside the driver. + */ static int usbdux_ai_cancel(comedi_device * dev, comedi_subdevice * s) { usbduxsub_t *this_usbduxsub; int res = 0; - // force unlink of all urbs + /* force unlink of all urbs */ #ifdef NOISY_DUX_DEBUGBUG printk("comedi: usbdux_ai_cancel\n"); #endif @@ -361,20 +372,19 @@ static int usbdux_ai_cancel(comedi_device * dev, comedi_subdevice * s) printk("comedi: usbdux_ai_cancel: this_usbduxsub=NULL\n"); return -EFAULT; } - // prevent other CPUs from submitting new commands just now + /* prevent other CPUs from submitting new commands just now */ down(&this_usbduxsub->sem); if (!(this_usbduxsub->probed)) { up(&this_usbduxsub->sem); return -ENODEV; } - // unlink only if the urb really has been submitted + /* unlink only if the urb really has been submitted */ res = usbdux_ai_stop(this_usbduxsub, this_usbduxsub->ai_cmd_running); up(&this_usbduxsub->sem); return res; } -// analogue IN -// interrupt service routine +/* analogue IN - interrupt service routine */ static void usbduxsub_ai_IsocIrq(struct urb *urb) { int i, err, n; @@ -382,38 +392,38 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb) comedi_device *this_comedidev; comedi_subdevice *s; - // sanity checks - // is the urb there? + /* sanity checks */ + /* is the urb there? */ if (!urb) { printk("comedi_: usbdux_: ao int-handler called with urb=NULL!\n"); return; } - // the context variable points to the subdevice + /* the context variable points to the subdevice */ this_comedidev = urb->context; if (unlikely(!this_comedidev)) { printk("comedi_: usbdux_: BUG! urb context is a NULL pointer!\n"); return; } - // the private structure of the subdevice is usbduxsub_t + /* the private structure of the subdevice is usbduxsub_t */ this_usbduxsub = this_comedidev->private; if (unlikely(!this_usbduxsub)) { printk("comedi_: usbdux_: BUG! private of comedi subdev is a NULL pointer!\n"); return; } - // subdevice which is the AD converter + /* subdevice which is the AD converter */ s = this_comedidev->subdevices + SUBDEV_AD; - // first we test if something unusual has just happened + /* first we test if something unusual has just happened */ switch (urb->status) { case 0: - // copy the result in the transfer buffer + /* copy the result in the transfer buffer */ memcpy(this_usbduxsub->inBuffer, urb->transfer_buffer, SIZEINBUF); break; case -EILSEQ: - // error in the ISOchronous data - // we don't copy the data into the transfer buffer - // and recycle the last data byte + /* error in the ISOchronous data */ + /* we don't copy the data into the transfer buffer */ + /* and recycle the last data byte */ #ifdef CONFIG_COMEDI_DEBUG printk("comedi%d: usbdux: CRC error in ISO IN stream.\n", this_usbduxsub->comedidev->minor); @@ -421,42 +431,43 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb) break; - // happens after an unlink command case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: case -ECONNABORTED: + /* happens after an unlink command */ if (this_usbduxsub->ai_cmd_running) { - // we are still running a command - // tell this comedi + /* we are still running a command */ + /* tell this comedi */ s->async->events |= COMEDI_CB_EOA; s->async->events |= COMEDI_CB_ERROR; comedi_event(this_usbduxsub->comedidev, s); - // stop the transfer w/o unlink + /* stop the transfer w/o unlink */ usbdux_ai_stop(this_usbduxsub, 0); } return; - // a real error on the bus default: - // pass error to comedi if we are really running a command + /* a real error on the bus */ + /* pass error to comedi if we are really running a command */ if (this_usbduxsub->ai_cmd_running) { printk("Non-zero urb status received in ai intr context: %d\n", urb->status); s->async->events |= COMEDI_CB_EOA; s->async->events |= COMEDI_CB_ERROR; comedi_event(this_usbduxsub->comedidev, s); - // don't do an unlink here + /* don't do an unlink here */ usbdux_ai_stop(this_usbduxsub, 0); } return; } - // at this point we are reasonably sure that nothing dodgy has happened - // are we running a command? + /* at this point we are reasonably sure that nothing dodgy has happened */ + /* are we running a command? */ if (unlikely((!(this_usbduxsub->ai_cmd_running)))) { - // not running a command - // do not continue execution if no asynchronous command is running - // in particular not resubmit + /* + * not running a command, do not continue execution if no + * asynchronous command is running in particular not resubmit + */ return; } @@ -482,28 +493,27 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb) if (likely(this_usbduxsub->ai_counter > 0)) return; - // timer zero, transfer measurements to comedi + /* timer zero, transfer measurements to comedi */ this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; - // test, if we transmit only a fixed number of samples + /* test, if we transmit only a fixed number of samples */ if (!(this_usbduxsub->ai_continous)) { - // not continous, fixed number of samples + /* not continous, fixed number of samples */ this_usbduxsub->ai_sample_count--; - // all samples received? + /* all samples received? */ if (this_usbduxsub->ai_sample_count < 0) { - // prevent a resubmit next time + /* prevent a resubmit next time */ usbdux_ai_stop(this_usbduxsub, 0); - // say comedi that the acquistion is over + /* say comedi that the acquistion is over */ s->async->events |= COMEDI_CB_EOA; comedi_event(this_usbduxsub->comedidev, s); return; } } - // get the data from the USB bus and hand it over - // to comedi + /* get the data from the USB bus and hand it over to comedi */ n = s->async->cmd.chanlist_len; for (i = 0; i < n; i++) { - // transfer data + /* transfer data */ if (CR_RANGE(s->async->cmd.chanlist[i]) <= 1) { comedi_buf_put (s->async, @@ -515,7 +525,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb) le16_to_cpu(this_usbduxsub->inBuffer[i])); } } - // tell comedi that data is there + /* tell comedi that data is there */ comedi_event(this_usbduxsub->comedidev, s); } @@ -572,13 +582,13 @@ static int usbdux_ao_cancel(comedi_device *dev, comedi_subdevice *s) printk("comedi: usbdux_ao_cancel: this_usbduxsub=NULL\n"); return -EFAULT; } - // prevent other CPUs from submitting a command just now + /* prevent other CPUs from submitting a command just now */ down(&this_usbduxsub->sem); if (!(this_usbduxsub->probed)) { up(&this_usbduxsub->sem); return -ENODEV; } - // unlink only if it is really running + /* unlink only if it is really running */ res = usbdux_ao_stop(this_usbduxsub, this_usbduxsub->ao_cmd_running); up(&this_usbduxsub->sem); return res; @@ -596,13 +606,13 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) printk("comedi_: usbdux_: ao urb handler called with NULL ptr.\n"); return; } - // the context variable points to the subdevice + /* the context variable points to the subdevice */ this_comedidev = urb->context; if (!this_comedidev) { printk("comedi_: usbdux_: ao urb int-context is a NULL pointer.\n"); return; } - // the private structure of the subdevice is usbduxsub_t + /* the private structure of the subdevice is usbduxsub_t */ this_usbduxsub = this_comedidev->private; if (!this_usbduxsub) { printk("comedi_: usbdux_: private data structure of ao subdev is NULL p.\n"); @@ -620,8 +630,8 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) case -ENOENT: case -ESHUTDOWN: case -ECONNABORTED: - // after an unlink command, unplug, ... etc - // no unlink needed here. Already shutting down. + /* after an unlink command, unplug, ... etc */ + /* no unlink needed here. Already shutting down. */ if (this_usbduxsub->ao_cmd_running) { s->async->events |= COMEDI_CB_EOA; comedi_event(this_usbduxsub->comedidev, s); @@ -630,42 +640,42 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) return; default: - // a real error + /* a real error */ if (this_usbduxsub->ao_cmd_running) { printk("comedi_: usbdux_: Non-zero urb status received in ao intr context: %d\n", urb->status); s->async->events |= COMEDI_CB_ERROR; s->async->events |= COMEDI_CB_EOA; comedi_event(this_usbduxsub->comedidev, s); - // we do an unlink if we are in the high speed mode + /* we do an unlink if we are in the high speed mode */ usbdux_ao_stop(this_usbduxsub, 0); } return; } - // are we actually running? + /* are we actually running? */ if (!(this_usbduxsub->ao_cmd_running)) return; - // normal operation: executing a command in this subdevice + /* normal operation: executing a command in this subdevice */ this_usbduxsub->ao_counter--; if (this_usbduxsub->ao_counter <= 0) { - // timer zero + /* timer zero */ this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; - // handle non continous aquisition + /* handle non continous aquisition */ if (!(this_usbduxsub->ao_continous)) { - // fixed number of samples + /* fixed number of samples */ this_usbduxsub->ao_sample_count--; if (this_usbduxsub->ao_sample_count < 0) { - // all samples transmitted + /* all samples transmitted */ usbdux_ao_stop(this_usbduxsub, 0); s->async->events |= COMEDI_CB_EOA; comedi_event(this_usbduxsub->comedidev, s); - // no resubmit of the urb + /* no resubmit of the urb */ return; } } - // transmit data to the USB bus + /* transmit data to the USB bus */ ((uint8_t *) (urb->transfer_buffer))[0] = s->async->cmd.chanlist_len; for (i = 0; i < s->async->cmd.chanlist_len; i++) { @@ -673,21 +683,21 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) if (i >= NUMOUTCHANNELS) break; - // pointer to the DA + /* pointer to the DA */ datap = (&(((int8_t *) urb->transfer_buffer)[i * 3 + 1])); - // get the data from comedi + /* get the data from comedi */ ret = comedi_buf_get(s->async, &temp); datap[0] = temp; datap[1] = temp >> 8; datap[2] = this_usbduxsub->dac_commands[i]; - // printk("data[0]=%x, data[1]=%x, data[2]=%x\n", - // datap[0],datap[1],datap[2]); + /* printk("data[0]=%x, data[1]=%x, data[2]=%x\n", */ + /* datap[0],datap[1],datap[2]); */ if (ret < 0) { printk("comedi: usbdux: buffer underflow\n"); s->async->events |= COMEDI_CB_EOA; s->async->events |= COMEDI_CB_OVERFLOW; } - // transmit data to comedi + /* transmit data to comedi */ s->async->events |= COMEDI_CB_BLOCK; comedi_event(this_usbduxsub->comedidev, s); } @@ -697,10 +707,10 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) urb->status = 0; if (this_usbduxsub->ao_cmd_running) { if (this_usbduxsub->high_speed) { - // uframes + /* uframes */ urb->interval = 8; } else { - // frames + /* frames */ urb->interval = 1; } urb->number_of_packets = 1; @@ -718,7 +728,7 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb) s->async->events |= COMEDI_CB_EOA; s->async->events |= COMEDI_CB_ERROR; comedi_event(this_usbduxsub->comedidev, s); - // don't do an unlink here + /* don't do an unlink here */ usbdux_ao_stop(this_usbduxsub, 0); } } @@ -730,24 +740,24 @@ static int usbduxsub_start(usbduxsub_t *usbduxsub) uint8_t local_transfer_buffer[16]; if (usbduxsub->probed) { - // 7f92 to zero + /* 7f92 to zero */ local_transfer_buffer[0] = 0; errcode = USB_CONTROL_MSG(usbduxsub->usbdev, - // create a pipe for a control transfer + /* create a pipe for a control transfer */ usb_sndctrlpipe(usbduxsub->usbdev, 0), - // bRequest, "Firmware" + /* bRequest, "Firmware" */ USBDUXSUB_FIRMWARE, - // bmRequestType + /* bmRequestType */ VENDOR_DIR_OUT, - // Value + /* Value */ USBDUXSUB_CPUCS, - // Index + /* Index */ 0x0000, - // address of the transfer buffer + /* address of the transfer buffer */ local_transfer_buffer, - // Length + /* Length */ 1, - // Timeout + /* Timeout */ EZTIMEOUT); if (errcode < 0) { printk("comedi_: usbdux_: control msg failed (start)\n"); @@ -763,22 +773,22 @@ static int usbduxsub_stop(usbduxsub_t *usbduxsub) uint8_t local_transfer_buffer[16]; if (usbduxsub->probed) { - // 7f92 to one + /* 7f92 to one */ local_transfer_buffer[0] = 1; errcode = USB_CONTROL_MSG (usbduxsub->usbdev, usb_sndctrlpipe(usbduxsub->usbdev, 0), - // bRequest, "Firmware" + /* bRequest, "Firmware" */ USBDUXSUB_FIRMWARE, - // bmRequestType + /* bmRequestType */ VENDOR_DIR_OUT, - // Value + /* Value */ USBDUXSUB_CPUCS, - // Index + /* Index */ 0x0000, local_transfer_buffer, - // Length + /* Length */ 1, - // Timeout + /* Timeout */ EZTIMEOUT); if (errcode < 0) { printk("comedi_: usbdux: control msg failed (stop)\n"); @@ -804,19 +814,19 @@ static int usbduxsub_upload(usbduxsub_t *usbduxsub, errcode = USB_CONTROL_MSG (usbduxsub->usbdev, usb_sndctrlpipe(usbduxsub->usbdev, 0), - // brequest, firmware + /* brequest, firmware */ USBDUXSUB_FIRMWARE, - // bmRequestType + /* bmRequestType */ VENDOR_DIR_OUT, - // value + /* value */ startAddr, - // index + /* index */ 0x0000, - // our local safe buffer + /* our local safe buffer */ local_transfer_buffer, - // length + /* length */ len, - // timeout + /* timeout */ EZTIMEOUT); #ifdef NOISY_DUX_DEBUGBUG printk("comedi_: usbdux: result=%d\n", errcode); @@ -826,7 +836,7 @@ static int usbduxsub_upload(usbduxsub_t *usbduxsub, return errcode; } } else { - // no device on the bus for this index + /* no device on the bus for this index */ return -EFAULT; } return 0; @@ -898,7 +908,7 @@ static int usbduxsub_submit_OutURBs(usbduxsub_t *usbduxsub) #ifdef NOISY_DUX_DEBUGBUG printk("comedi_: usbdux: submitting out-urb[%d]\n", i); #endif - // in case of a resubmission after an unlink... + /* in case of a resubmission after an unlink... */ usbduxsub->urbOut[i]->context = usbduxsub->comedidev; usbduxsub->urbOut[i]->dev = usbduxsub->usbdev; usbduxsub->urbOut[i]->status = 0; @@ -927,32 +937,32 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, printk("comedi%d: usbdux_ai_cmdtest\n", dev->minor); #endif /* make sure triggers are valid */ - // Only immediate triggers are allowed + /* Only immediate triggers are allowed */ tmp = cmd->start_src; cmd->start_src &= TRIG_NOW | TRIG_INT; if (!cmd->start_src || tmp != cmd->start_src) err++; - // trigger should happen timed + /* trigger should happen timed */ tmp = cmd->scan_begin_src; - // start a new _scan_ with a timer + /* start a new _scan_ with a timer */ cmd->scan_begin_src &= TRIG_TIMER; if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) err++; - // scanning is continous + /* scanning is continous */ tmp = cmd->convert_src; cmd->convert_src &= TRIG_NOW; if (!cmd->convert_src || tmp != cmd->convert_src) err++; - // issue a trigger when scan is finished and start a new scan + /* issue a trigger when scan is finished and start a new scan */ tmp = cmd->scan_end_src; cmd->scan_end_src &= TRIG_COUNT; if (!cmd->scan_end_src || tmp != cmd->scan_end_src) err++; - // trigger at the end of count events or not, stop condition or not + /* trigger at the end of count events or not, stop condition or not */ tmp = cmd->stop_src; cmd->stop_src &= TRIG_COUNT | TRIG_NONE; if (!cmd->stop_src || tmp != cmd->stop_src) @@ -990,12 +1000,14 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, if (cmd->scan_begin_src == TRIG_TIMER) { if (this_usbduxsub->high_speed) { - // In high speed mode microframes are possible. - // However, during one microframe we can roughly - // sample one channel. Thus, the more channels - // are in the channel list the more time we need. + /* + * In high speed mode microframes are possible. + * However, during one microframe we can roughly + * sample one channel. Thus, the more channels + * are in the channel list the more time we need. + */ i = 1; - // find a power of 2 for the number of channels + /* find a power of 2 for the number of channels */ while (i < (cmd->chanlist_len)) { i = i * 2; } @@ -1003,7 +1015,8 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, cmd->scan_begin_arg = 1000000 / 8 * i; err++; } - // now calc the real sampling rate with all the rounding errors + /* now calc the real sampling rate with all the + * rounding errors */ tmpTimer = ((unsigned int)(cmd->scan_begin_arg / 125000)) * 125000; @@ -1011,13 +1024,14 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, cmd->scan_begin_arg = tmpTimer; err++; } - } else { // full speed - // 1kHz scans every USB frame + } else { + /* full speed */ + /* 1kHz scans every USB frame */ if (cmd->scan_begin_arg < 1000000) { cmd->scan_begin_arg = 1000000; err++; } - // calc the real sampling rate with the rounding errors + /* calc the real sampling rate with the rounding errors */ tmpTimer = ((unsigned int)(cmd->scan_begin_arg / 1000000)) * 1000000; @@ -1027,7 +1041,7 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, } } } - // the same argument + /* the same argument */ if (cmd->scan_end_arg != cmd->chanlist_len) { cmd->scan_end_arg = cmd->chanlist_len; err++; @@ -1049,8 +1063,10 @@ static int usbdux_ai_cmdtest(comedi_device *dev, comedi_subdevice *s, return 0; } -// creates the ADC command for the MAX1271 -// range is the range value from comedi +/* + * creates the ADC command for the MAX1271 + * range is the range value from comedi + */ static int8_t create_adc_command(unsigned int chan, int range) { int8_t p = (range <= 1); @@ -1058,7 +1074,7 @@ static int8_t create_adc_command(unsigned int chan, int range) return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3); } -// bulk transfers to usbdux +/* bulk transfers to usbdux */ #define SENDADCOMMANDS 0 #define SENDDACOMMANDS 1 @@ -1112,7 +1128,7 @@ static int receive_dux_commands(usbduxsub_t *this_usbduxsub, int command) return result; } } - // this is only reached if the data has been requested a couple of times + /* this is only reached if the data has been requested a couple of times */ printk("comedi%d: insn: wrong data returned from firmware: want cmd %d, got cmd %d.\n", this_usbduxsub->comedidev->minor, command, le16_to_cpu(this_usbduxsub->insnBuffer[0])); return -EFAULT; } @@ -1235,30 +1251,30 @@ static int usbdux_ai_cmd(comedi_device *dev, comedi_subdevice *s) this_usbduxsub->ai_counter = this_usbduxsub->ai_timer; if (cmd->stop_src == TRIG_COUNT) { - // data arrives as one packet + /* data arrives as one packet */ this_usbduxsub->ai_sample_count = cmd->stop_arg; this_usbduxsub->ai_continous = 0; } else { - // continous aquisition + /* continous aquisition */ this_usbduxsub->ai_continous = 1; this_usbduxsub->ai_sample_count = 0; } if (cmd->start_src == TRIG_NOW) { - // enable this acquisition operation + /* enable this acquisition operation */ this_usbduxsub->ai_cmd_running = 1; ret = usbduxsub_submit_InURBs(this_usbduxsub); if (ret < 0) { this_usbduxsub->ai_cmd_running = 0; - // fixme: unlink here?? + /* fixme: unlink here?? */ up(&this_usbduxsub->sem); return ret; } s->async->inttrig = NULL; } else { /* TRIG_INT */ - // don't enable the acquision operation - // wait for an internal signal + /* don't enable the acquision operation */ + /* wait for an internal signal */ s->async->inttrig = usbdux_ai_inttrig; } up(&this_usbduxsub->sem); @@ -1294,13 +1310,13 @@ static int usbdux_ai_insn_read(comedi_device *dev, comedi_subdevice *s, return 0; } - // sample one channel + /* sample one channel */ chan = CR_CHAN(insn->chanspec); range = CR_RANGE(insn->chanspec); - // set command for the first channel + /* set command for the first channel */ this_usbduxsub->dux_commands[1] = create_adc_command(chan, range); - // adc commands + /* adc commands */ if ((err = send_dux_commands(this_usbduxsub, SENDSINGLEAD)) < 0) { up(&this_usbduxsub->sem); return err; @@ -1322,8 +1338,8 @@ static int usbdux_ai_insn_read(comedi_device *dev, comedi_subdevice *s, return i; } -////////////////// -// analog out +/************************************/ +/* analog out */ static int usbdux_ao_insn_read(comedi_device *dev, comedi_subdevice *s, comedi_insn *insn, lsampl_t *data) @@ -1376,13 +1392,13 @@ static int usbdux_ao_insn_write(comedi_device *dev, comedi_subdevice *s, printk("comedi%d: ao_insn_write: data[chan=%d,i=%d]=%d\n", dev->minor, chan, i, data[i]); #endif - // number of channels: 1 + /* number of channels: 1 */ this_usbduxsub->dux_commands[1] = 1; - // one 16 bit value + /* one 16 bit value */ *((int16_t *) (this_usbduxsub->dux_commands + 2)) = cpu_to_le16(data[i]); this_usbduxsub->outBuffer[chan] = data[i]; - // channel number + /* channel number */ this_usbduxsub->dux_commands[4] = (chan << 6); if ((err = send_dux_commands(this_usbduxsub, SENDDACOMMANDS)) < 0) { @@ -1448,47 +1464,47 @@ static int usbdux_ao_cmdtest(comedi_device *dev, comedi_subdevice *s, printk("comedi%d: usbdux_ao_cmdtest\n", dev->minor); #endif /* make sure triggers are valid */ - // Only immediate triggers are allowed + /* Only immediate triggers are allowed */ tmp = cmd->start_src; cmd->start_src &= TRIG_NOW | TRIG_INT; if (!cmd->start_src || tmp != cmd->start_src) err++; - // trigger should happen timed + /* trigger should happen timed */ tmp = cmd->scan_begin_src; - // just now we scan also in the high speed mode every frame - // this is due to ehci driver limitations + /* just now we scan also in the high speed mode every frame */ + /* this is due to ehci driver limitations */ if (0) { /* (this_usbduxsub->high_speed) */ - // start immidiately a new scan - // the sampling rate is set by the coversion rate + /* start immidiately a new scan */ + /* the sampling rate is set by the coversion rate */ cmd->scan_begin_src &= TRIG_FOLLOW; } else { - // start a new scan (output at once) with a timer + /* start a new scan (output at once) with a timer */ cmd->scan_begin_src &= TRIG_TIMER; } if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) err++; - // scanning is continous + /* scanning is continous */ tmp = cmd->convert_src; - // we always output at 1kHz just now all channels at once + /* we always output at 1kHz just now all channels at once */ if (0) { /* (this_usbduxsub->high_speed) */ - // in usb-2.0 only one conversion it tranmitted but with 8kHz/n + /* in usb-2.0 only one conversion it tranmitted but with 8kHz/n */ cmd->convert_src &= TRIG_TIMER; } else { - // all conversion events happen simultaneously with a rate of 1kHz/n + /* all conversion events happen simultaneously with a rate of 1kHz/n */ cmd->convert_src &= TRIG_NOW; } if (!cmd->convert_src || tmp != cmd->convert_src) err++; - // issue a trigger when scan is finished and start a new scan + /* issue a trigger when scan is finished and start a new scan */ tmp = cmd->scan_end_src; cmd->scan_end_src &= TRIG_COUNT; if (!cmd->scan_end_src || tmp != cmd->scan_end_src) err++; - // trigger at the end of count events or not, stop condition or not + /* trigger at the end of count events or not, stop condition or not */ tmp = cmd->stop_src; cmd->stop_src &= TRIG_COUNT | TRIG_NONE; if (!cmd->stop_src || tmp != cmd->stop_src) @@ -1531,7 +1547,7 @@ static int usbdux_ao_cmdtest(comedi_device *dev, comedi_subdevice *s, err++; } } - // not used now, is for later use + /* not used now, is for later use */ if (cmd->convert_src == TRIG_TIMER) { if (cmd->convert_arg < 125000) { cmd->convert_arg = 125000; @@ -1539,7 +1555,7 @@ static int usbdux_ao_cmdtest(comedi_device *dev, comedi_subdevice *s, } } - // the same argument + /* the same argument */ if (cmd->scan_end_arg != cmd->chanlist_len) { cmd->scan_end_arg = cmd->chanlist_len; err++; @@ -1584,7 +1600,7 @@ static int usbdux_ao_cmd(comedi_device *dev, comedi_subdevice *s) printk("comedi%d: usbdux_ao_cmd\n", dev->minor); #endif - // set current channel of the running aquisition to zero + /* set current channel of the running aquisition to zero */ s->async->cur_chan = 0; for (i = 0; i < cmd->chanlist_len; ++i) { chan = CR_CHAN(cmd->chanlist[i]); @@ -1600,15 +1616,15 @@ static int usbdux_ao_cmd(comedi_device *dev, comedi_subdevice *s) #endif } - // we count in steps of 1ms (125us) - // 125us mode not used yet + /* we count in steps of 1ms (125us) */ + /* 125us mode not used yet */ if (0) { /* (this_usbduxsub->high_speed) */ - // 125us - // timing of the conversion itself: every 125 us + /* 125us */ + /* timing of the conversion itself: every 125 us */ this_usbduxsub->ao_timer = cmd->convert_arg / 125000; } else { - // 1ms - // timing of the scan: we get all channels at once + /* 1ms */ + /* timing of the scan: we get all channels at once */ this_usbduxsub->ao_timer = cmd->scan_begin_arg / 1000000; #ifdef NOISY_DUX_DEBUGBUG printk("comedi%d: usbdux: scan_begin_src=%d, scan_begin_arg=%d, convert_src=%d, convert_arg=%d\n", dev->minor, cmd->scan_begin_src, cmd->scan_begin_arg, cmd->convert_src, cmd->convert_arg); @@ -1624,40 +1640,40 @@ static int usbdux_ao_cmd(comedi_device *dev, comedi_subdevice *s) this_usbduxsub->ao_counter = this_usbduxsub->ao_timer; if (cmd->stop_src == TRIG_COUNT) { - // not continous - // counter - // high speed also scans everything at once + /* not continous */ + /* counter */ + /* high speed also scans everything at once */ if (0) { /* (this_usbduxsub->high_speed) */ this_usbduxsub->ao_sample_count = (cmd->stop_arg) * (cmd->scan_end_arg); } else { - // there's no scan as the scan has been - // perf inside the FX2 - // data arrives as one packet + /* there's no scan as the scan has been */ + /* perf inside the FX2 */ + /* data arrives as one packet */ this_usbduxsub->ao_sample_count = cmd->stop_arg; } this_usbduxsub->ao_continous = 0; } else { - // continous aquisition + /* continous aquisition */ this_usbduxsub->ao_continous = 1; this_usbduxsub->ao_sample_count = 0; } if (cmd->start_src == TRIG_NOW) { - // enable this acquisition operation + /* enable this acquisition operation */ this_usbduxsub->ao_cmd_running = 1; ret = usbduxsub_submit_OutURBs(this_usbduxsub); if (ret < 0) { this_usbduxsub->ao_cmd_running = 0; - // fixme: unlink here?? + /* fixme: unlink here?? */ up(&this_usbduxsub->sem); return ret; } s->async->inttrig = NULL; } else { /* TRIG_INT */ - // submit the urbs later - // wait for an internal signal + /* submit the urbs later */ + /* wait for an internal signal */ s->async->inttrig = usbdux_ao_inttrig; } @@ -1691,8 +1707,8 @@ static int usbdux_dio_insn_config(comedi_device *dev, comedi_subdevice *s, return -EINVAL; break; } - // we don't tell the firmware here as it would take 8 frames - // to submit the information. We do it in the insn_bits. + /* we don't tell the firmware here as it would take 8 frames */ + /* to submit the information. We do it in the insn_bits. */ return insn->n; } @@ -1724,8 +1740,8 @@ static int usbdux_dio_insn_bits(comedi_device *dev, comedi_subdevice *s, this_usbduxsub->dux_commands[1] = s->io_bits; this_usbduxsub->dux_commands[2] = s->state; - // This command also tells the firmware to return - // the digital input lines + /* This command also tells the firmware to return */ + /* the digital input lines */ if ((err = send_dux_commands(this_usbduxsub, SENDDIOBITSCOMMAND)) < 0) { up(&this_usbduxsub->sem); return err; @@ -1807,12 +1823,12 @@ static int usbdux_counter_write(comedi_device *dev, comedi_subdevice *s, static int usbdux_counter_config(comedi_device *dev, comedi_subdevice *s, comedi_insn *insn, lsampl_t *data) { - // nothing to do so far + /* nothing to do so far */ return 2; } -///////////////////////////// -// PWM +/***********************************/ +/* PWM */ static int usbduxsub_unlink_PwmURBs(usbduxsub_t *usbduxsub_tmp) { @@ -1879,19 +1895,19 @@ static void usbduxsub_pwm_irq(struct urb *urb) comedi_device *this_comedidev; comedi_subdevice *s; - // printk("PWM: IRQ\n"); + /* printk("PWM: IRQ\n"); */ if (!urb) { printk("comedi_: usbdux_: pwm urb handler called with NULL ptr.\n"); return; } - // the context variable points to the subdevice + /* the context variable points to the subdevice */ this_comedidev = urb->context; if (!this_comedidev) { printk("comedi_: usbdux_: pwm urb int-context is a NULL pointer.\n"); return; } - // the private structure of the subdevice is usbduxsub_t + /* the private structure of the subdevice is usbduxsub_t */ this_usbduxsub = this_comedidev->private; if (!this_usbduxsub) { printk("comedi_: usbdux_: private data structure of pwm subdev is NULL p.\n"); @@ -1959,7 +1975,7 @@ static int usbduxsub_submit_PwmURBs(usbduxsub_t *usbduxsub) #ifdef NOISY_DUX_DEBUGBUG printk("comedi_: usbdux: submitting pwm-urb\n"); #endif - // in case of a resubmission after an unlink... + /* in case of a resubmission after an unlink... */ usb_fill_bulk_urb(usbduxsub->urbPwm, usbduxsub->usbdev, @@ -2003,7 +2019,7 @@ static int usbdux_pwm_period(comedi_device *dev, comedi_subdevice *s, } -// is called from insn so there's no need to do all the sanity checks +/* is called from insn so there's no need to do all the sanity checks */ static int usbdux_pwm_start(comedi_device * dev, comedi_subdevice * s) { int ret, i; @@ -2013,7 +2029,7 @@ static int usbdux_pwm_start(comedi_device * dev, comedi_subdevice * s) printk("comedi%d: usbdux_pwm_start\n", dev->minor); #endif if (this_usbduxsub->pwm_cmd_running) { - // already running + /* already running */ return 0; } @@ -2021,7 +2037,7 @@ static int usbdux_pwm_start(comedi_device * dev, comedi_subdevice * s) if ((ret = send_dux_commands(this_usbduxsub, SENDPWMON)) < 0) { return ret; } - // initalise the buffer + /* initalise the buffer */ for (i = 0; i < this_usbduxsub->sizePwmBuf; i++) { ((char *)(this_usbduxsub->urbPwm->transfer_buffer))[i] = 0; } @@ -2036,7 +2052,7 @@ static int usbdux_pwm_start(comedi_device * dev, comedi_subdevice * s) } -// generates the bit pattern for PWM with the optional sign bit +/* generates the bit pattern for PWM with the optional sign bit */ static int usbdux_pwm_pattern(comedi_device * dev, comedi_subdevice * s, int channel, lsampl_t value, lsampl_t sign) { @@ -2048,27 +2064,27 @@ static int usbdux_pwm_pattern(comedi_device * dev, comedi_subdevice * s, if (!this_usbduxsub) { return -EFAULT; } - // this is the DIO bit which carries the PWM data + /* this is the DIO bit which carries the PWM data */ pwm_mask = (1 << channel); - // this is the DIO bit which carries the optional direction bit + /* this is the DIO bit which carries the optional direction bit */ sgn_mask = (16 << channel); - // this is the buffer which will be filled with the with bit - // pattern for one period + /* this is the buffer which will be filled with the with bit */ + /* pattern for one period */ szbuf = this_usbduxsub->sizePwmBuf; pBuf = (char *)(this_usbduxsub->urbPwm->transfer_buffer); for (i = 0; i < szbuf; i++) { c = *pBuf; - // reset bits + /* reset bits */ c = c & (~pwm_mask); - // set the bit as long as the index is lower than the value + /* set the bit as long as the index is lower than the value */ if (i < value) c = c | pwm_mask; - // set the optional sign bit for a relay + /* set the optional sign bit for a relay */ if (!sign) { - // positive value + /* positive value */ c = c & (~sgn_mask); } else { - // negative value + /* negative value */ c = c | sgn_mask; } *(pBuf++) = c; @@ -2086,14 +2102,14 @@ static int usbdux_pwm_write(comedi_device * dev, comedi_subdevice * s, } if ((insn->n)!=1) { - // doesn't make sense to have more than one value here - // because it would just overwrite the PWM buffer a couple of times + /* doesn't make sense to have more than one value here */ + /* because it would just overwrite the PWM buffer a couple of times */ return -EINVAL; } - // the sign is set via a special INSN only, this gives us 8 bits for - // normal operation - // relay sign 0 by default + /* the sign is set via a special INSN only, this gives us 8 bits for */ + /* normal operation */ + /* relay sign 0 by default */ return usbdux_pwm_pattern(dev, s, CR_CHAN(insn->chanspec), data[0], 0); } @@ -2290,7 +2306,7 @@ static int read_firmware(usbduxsub_t *usbduxsub, void *firmwarePtr, long size) int idx, off; int j = 0; - // get one line + /* get one line */ while ((i < size) && (fp[i] != 13) && (fp[i] != 10)) { buf[j] = fp[i]; i++; @@ -2300,14 +2316,14 @@ static int read_firmware(usbduxsub_t *usbduxsub, void *firmwarePtr, long size) return -1; } } - // get rid of LF/CR/... + /* get rid of LF/CR/... */ while ((i < size) && ((fp[i] == 13) || (fp[i] == 10) || (fp[i] == 0))) { i++; } buf[j] = 0; - //printk("comedi_: buf=%s\n",buf); + /*printk("comedi_: buf=%s\n",buf); */ /* EXTENSION: "# comment-till-end-of-line", for copyrights etc */ if (buf[0] == '#') @@ -2332,7 +2348,7 @@ static int read_firmware(usbduxsub_t *usbduxsub, void *firmwarePtr, long size) printk("comedi_: usbdux: firmware upload goes beyond FX2 RAM boundaries."); return -EFAULT; } - //printk("comedi_: usbdux: off=%x, len=%x:",off,len); + /*printk("comedi_: usbdux: off=%x, len=%x:",off,len); */ /* Read the record type */ type = hex2unsigned(buf + 7); @@ -2350,9 +2366,9 @@ static int read_firmware(usbduxsub_t *usbduxsub, void *firmwarePtr, long size) for (idx = 0, cp = buf + 9; idx < len; idx += 1, cp += 2) { firmwareBinary[idx + off] = hex2unsigned(cp); - //printk("%02x ",firmwareBinary[idx+off]); + /*printk("%02x ",firmwareBinary[idx+off]); */ } - //printk("\n"); + /*printk("\n"); */ if (i >= size) { printk("comedi_: usbdux: unexpected end of hex file\n"); @@ -2365,7 +2381,7 @@ static int read_firmware(usbduxsub_t *usbduxsub, void *firmwarePtr, long size) return res; } -// allocate memory for the urbs and initialise them +/* allocate memory for the urbs and initialise them */ static int usbduxsub_probe(struct usb_interface *uinterf, const struct usb_device_id *id) { @@ -2377,7 +2393,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, printk("comedi_: usbdux_: finding a free structure for the usb-device\n"); #endif down(&start_stop_sem); - // look for a free place in the usbdux array + /* look for a free place in the usbdux array */ index = -1; for (i = 0; i < NUMUSBDUX; i++) { if (!(usbduxsub[i].probed)) { @@ -2386,7 +2402,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, } } - // no more space + /* no more space */ if (index == -1) { printk("Too many usbdux-devices connected.\n"); up(&start_stop_sem); @@ -2397,25 +2413,25 @@ static int usbduxsub_probe(struct usb_interface *uinterf, #endif init_MUTEX(&(usbduxsub[index].sem)); - // save a pointer to the usb device + /* save a pointer to the usb device */ usbduxsub[index].usbdev = udev; - // 2.6: save the interface itself + /* 2.6: save the interface itself */ usbduxsub[index].interface = uinterf; - // get the interface number from the interface + /* get the interface number from the interface */ usbduxsub[index].ifnum = uinterf->altsetting->desc.bInterfaceNumber; - // hand the private data over to the usb subsystem - // will be needed for disconnect + /* hand the private data over to the usb subsystem */ + /* will be needed for disconnect */ usb_set_intfdata(uinterf, &(usbduxsub[index])); #ifdef CONFIG_COMEDI_DEBUG printk("comedi_: usbdux: ifnum=%d\n", usbduxsub[index].ifnum); #endif - // test if it is high speed (USB 2.0) + /* test if it is high speed (USB 2.0) */ usbduxsub[index].high_speed = (usbduxsub[index].usbdev->speed == USB_SPEED_HIGH); - // create space for the commands of the DA converter + /* create space for the commands of the DA converter */ usbduxsub[index].dac_commands = kzalloc(NUMOUTCHANNELS, GFP_KERNEL); if (!usbduxsub[index].dac_commands) { printk("comedi_: usbdux: error alloc space for dac commands\n"); @@ -2423,7 +2439,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, up(&start_stop_sem); return PROBE_ERR_RETURN(-ENOMEM); } - // create space for the commands going to the usb device + /* create space for the commands going to the usb device */ usbduxsub[index].dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL); if (!usbduxsub[index].dux_commands) { printk("comedi_: usbdux: error alloc space for dac commands\n"); @@ -2431,7 +2447,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, up(&start_stop_sem); return PROBE_ERR_RETURN(-ENOMEM); } - // create space for the in buffer and set it to zero + /* create space for the in buffer and set it to zero */ usbduxsub[index].inBuffer = kzalloc(SIZEINBUF, GFP_KERNEL); if (!(usbduxsub[index].inBuffer)) { printk("comedi_: usbdux: could not alloc space for inBuffer\n"); @@ -2439,7 +2455,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, up(&start_stop_sem); return PROBE_ERR_RETURN(-ENOMEM); } - // create space of the instruction buffer + /* create space of the instruction buffer */ usbduxsub[index].insnBuffer = kzalloc(SIZEINSNBUF, GFP_KERNEL); if (!(usbduxsub[index].insnBuffer)) { printk("comedi_: usbdux: could not alloc space for insnBuffer\n"); @@ -2447,7 +2463,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, up(&start_stop_sem); return PROBE_ERR_RETURN(-ENOMEM); } - // create space for the outbuffer + /* create space for the outbuffer */ usbduxsub[index].outBuffer = kzalloc(SIZEOUTBUF, GFP_KERNEL); if (!(usbduxsub[index].outBuffer)) { printk("comedi_: usbdux: could not alloc space for outBuffer\n"); @@ -2479,7 +2495,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, return PROBE_ERR_RETURN(-ENOMEM); } for (i = 0; i < usbduxsub[index].numOfInBuffers; i++) { - // one frame: 1ms + /* one frame: 1ms */ usbduxsub[index].urbIn[i] = USB_ALLOC_URB(1); if (usbduxsub[index].urbIn[i] == NULL) { printk("comedi_: usbdux%d: Could not alloc. urb(%d)\n", @@ -2489,8 +2505,8 @@ static int usbduxsub_probe(struct usb_interface *uinterf, return PROBE_ERR_RETURN(-ENOMEM); } usbduxsub[index].urbIn[i]->dev = usbduxsub[index].usbdev; - // will be filled later with a pointer to the comedi-device - // and ONLY then the urb should be submitted + /* will be filled later with a pointer to the comedi-device */ + /* and ONLY then the urb should be submitted */ usbduxsub[index].urbIn[i]->context = NULL; usbduxsub[index].urbIn[i]->pipe = usb_rcvisocpipe(usbduxsub[index].usbdev, ISOINEP); @@ -2527,7 +2543,7 @@ static int usbduxsub_probe(struct usb_interface *uinterf, return PROBE_ERR_RETURN(-ENOMEM); } for (i = 0; i < usbduxsub[index].numOfOutBuffers; i++) { - // one frame: 1ms + /* one frame: 1ms */ usbduxsub[index].urbOut[i] = USB_ALLOC_URB(1); if (usbduxsub[index].urbOut[i] == NULL) { printk("comedi_: usbdux%d: Could not alloc. urb(%d)\n", @@ -2537,8 +2553,8 @@ static int usbduxsub_probe(struct usb_interface *uinterf, return PROBE_ERR_RETURN(-ENOMEM); } usbduxsub[index].urbOut[i]->dev = usbduxsub[index].usbdev; - // will be filled later with a pointer to the comedi-device - // and ONLY then the urb should be submitted + /* will be filled later with a pointer to the comedi-device */ + /* and ONLY then the urb should be submitted */ usbduxsub[index].urbOut[i]->context = NULL; usbduxsub[index].urbOut[i]->pipe = usb_sndisocpipe(usbduxsub[index].usbdev, ISOOUTEP); @@ -2559,17 +2575,17 @@ static int usbduxsub_probe(struct usb_interface *uinterf, usbduxsub[index].urbOut[i]->iso_frame_desc[0].length = SIZEOUTBUF; if (usbduxsub[index].high_speed) { - // uframes + /* uframes */ usbduxsub[index].urbOut[i]->interval = 8; } else { - // frames + /* frames */ usbduxsub[index].urbOut[i]->interval = 1; } } - // pwm + /* pwm */ if (usbduxsub[index].high_speed) { - usbduxsub[index].sizePwmBuf = 512; // max bulk ep size in high speed + usbduxsub[index].sizePwmBuf = 512; /* max bulk ep size in high speed */ usbduxsub[index].urbPwm = USB_ALLOC_URB(0); if (usbduxsub[index].urbPwm == NULL) { printk("comedi_: usbdux%d: Could not alloc. pwm urb\n", @@ -2595,11 +2611,11 @@ static int usbduxsub_probe(struct usb_interface *uinterf, usbduxsub[index].ao_cmd_running = 0; usbduxsub[index].pwm_cmd_running = 0; - // we've reached the bottom of the function + /* we've reached the bottom of the function */ usbduxsub[index].probed = 1; up(&start_stop_sem); printk("comedi_: usbdux%d has been successfully initialised.\n", index); - // success + /* success */ return 0; } @@ -2636,7 +2652,7 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) dev->private = NULL; down(&start_stop_sem); - // find a valid device which has been detected by the probe function of the usb + /* find a valid device which has been detected by the probe function of the usb */ index = -1; for (i = 0; i < NUMUSBDUX; i++) { if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) { @@ -2652,10 +2668,10 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) } down(&(usbduxsub[index].sem)); - // pointer back to the corresponding comedi device + /* pointer back to the corresponding comedi device */ usbduxsub[index].comedidev = dev; - // trying to upload the firmware into the chip + /* trying to upload the firmware into the chip */ if (comedi_aux_data(it->options, 0) && it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) { read_firmware(usbduxsub + index, @@ -2667,14 +2683,14 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) /* set number of subdevices */ if (usbduxsub[index].high_speed) { - // with pwm + /* with pwm */ dev->n_subdevices = 5; } else { - // without pwm + /* without pwm */ dev->n_subdevices = 4; } - // allocate space for the subdevices + /* allocate space for the subdevices */ if ((ret = alloc_subdevices(dev, dev->n_subdevices)) < 0) { printk("comedi%d: usbdux: error alloc space for subdev\n", dev->minor); @@ -2684,64 +2700,63 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) printk("comedi%d: usbdux: usb-device %d is attached to comedi.\n", dev->minor, index); - // private structure is also simply the usb-structure + /* private structure is also simply the usb-structure */ dev->private = usbduxsub + index; - // the first subdevice is the A/D converter + /* the first subdevice is the A/D converter */ s = dev->subdevices + SUBDEV_AD; - // the URBs get the comedi subdevice - // which is responsible for reading - // this is the subdevice which reads data + /* the URBs get the comedi subdevice */ + /* which is responsible for reading */ + /* this is the subdevice which reads data */ dev->read_subdev = s; - // the subdevice receives as private structure the - // usb-structure + /* the subdevice receives as private structure the */ + /* usb-structure */ s->private = NULL; - // analog input + /* analog input */ s->type = COMEDI_SUBD_AI; - // readable and ref is to ground + /* readable and ref is to ground */ s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; - // 8 channels + /* 8 channels */ s->n_chan = 8; - // length of the channellist + /* length of the channellist */ s->len_chanlist = 8; - // callback functions + /* callback functions */ s->insn_read = usbdux_ai_insn_read; s->do_cmdtest = usbdux_ai_cmdtest; s->do_cmd = usbdux_ai_cmd; s->cancel = usbdux_ai_cancel; - // max value from the A/D converter (12bit) + /* max value from the A/D converter (12bit) */ s->maxdata = 0xfff; - // range table to convert to physical units + /* range table to convert to physical units */ s->range_table = (&range_usbdux_ai_range); - // - // analog out + /* analog out */ s = dev->subdevices + SUBDEV_DA; - // analog out + /* analog out */ s->type = COMEDI_SUBD_AO; - // backward pointer + /* backward pointer */ dev->write_subdev = s; - // the subdevice receives as private structure the - // usb-structure + /* the subdevice receives as private structure the */ + /* usb-structure */ s->private = NULL; - // are writable + /* are writable */ s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE; - // 4 channels + /* 4 channels */ s->n_chan = 4; - // length of the channellist + /* length of the channellist */ s->len_chanlist = 4; - // 12 bit resolution + /* 12 bit resolution */ s->maxdata = 0x0fff; - // bipolar range + /* bipolar range */ s->range_table = (&range_usbdux_ao_range); - // callback + /* callback */ s->do_cmdtest = usbdux_ao_cmdtest; s->do_cmd = usbdux_ao_cmd; s->cancel = usbdux_ao_cancel; s->insn_read = usbdux_ao_insn_read; s->insn_write = usbdux_ao_insn_write; - // digital I/O + /* digital I/O */ s = dev->subdevices + SUBDEV_DIO; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; @@ -2750,10 +2765,10 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) s->range_table = (&range_digital); s->insn_bits = usbdux_dio_insn_bits; s->insn_config = usbdux_dio_insn_config; - // we don't use it + /* we don't use it */ s->private = NULL; - //counter + /* counter */ s = dev->subdevices + SUBDEV_COUNTER; s->type = COMEDI_SUBD_COUNTER; s->subdev_flags = SDF_WRITABLE | SDF_READABLE; @@ -2764,19 +2779,19 @@ static int usbdux_attach(comedi_device *dev, comedi_devconfig *it) s->insn_config = usbdux_counter_config; if (usbduxsub[index].high_speed) { - //timer / pwm + /* timer / pwm */ s = dev->subdevices + SUBDEV_PWM; s->type = COMEDI_SUBD_PWM; s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE; s->n_chan = 8; - // this defines the max duty cycle resolution + /* this defines the max duty cycle resolution */ s->maxdata = usbduxsub[index].sizePwmBuf; s->insn_write = usbdux_pwm_write; s->insn_read = usbdux_pwm_read; s->insn_config = usbdux_pwm_config; usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD); } - // finally decide that it's attached + /* finally decide that it's attached */ usbduxsub[index].attached = 1; up(&(usbduxsub[index].sem)); @@ -2808,8 +2823,8 @@ static int usbdux_detach(comedi_device *dev) } down(&usbduxsub_tmp->sem); - // Don't allow detach to free the private structure - // It's one entry of of usbduxsub[] + /* Don't allow detach to free the private structure */ + /* It's one entry of of usbduxsub[] */ dev->private = NULL; usbduxsub_tmp->attached = 0; usbduxsub_tmp->comedidev = NULL; @@ -2834,9 +2849,9 @@ static void init_usb_devices(void) #ifdef CONFIG_COMEDI_DEBUG printk("comedi_: usbdux: setting all possible devs to invalid\n"); #endif - // all devices entries are invalid to begin with - // they will become valid by the probe function - // and then finally by the attach-function + /* all devices entries are invalid to begin with */ + /* they will become valid by the probe function */ + /* and then finally by the attach-function */ for (index = 0; index < NUMUSBDUX; index++) { memset(&(usbduxsub[index]), 0x00, sizeof(usbduxsub[index])); init_MUTEX(&(usbduxsub[index].sem)); @@ -2860,9 +2875,9 @@ static struct usb_driver usbduxsub_driver = { .id_table = usbduxsub_table, }; -// Can't use the nice macro as I have also to initialise the USB -// subsystem: -// registering the usb-system _and_ the comedi-driver +/* Can't use the nice macro as I have also to initialise the USB */ +/* subsystem: */ +/* registering the usb-system _and_ the comedi-driver */ static int init_usbdux(void) { printk(KERN_INFO KBUILD_MODNAME ": " @@ -2873,7 +2888,7 @@ static int init_usbdux(void) return 0; } -// deregistering the comedi driver and the usb-subsystem +/* deregistering the comedi driver and the usb-subsystem */ static void exit_usbdux(void) { comedi_driver_unregister(&driver_usbdux); |