diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/dt282x.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/dt282x.c | 391 |
1 files changed, 197 insertions, 194 deletions
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 4882c3e679cc..22b7304af396 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -209,132 +209,132 @@ struct dt282x_board { }; static const struct dt282x_board boardtypes[] = { - {name:"dt2821", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:20000, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt2821-f", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:6500, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt2821-g", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:4000, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt2823", - adbits: 16, - adchan_se:0, - adchan_di:4, - ai_speed:10000, - ispgl: 0, - dachan: 2, - dabits: 16, - }, - {name:"dt2824-pgh", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:20000, - ispgl: 0, - dachan: 0, - dabits: 0, - }, - {name:"dt2824-pgl", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:20000, - ispgl: 1, - dachan: 0, - dabits: 0, - }, - {name:"dt2825", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:20000, - ispgl: 1, - dachan: 2, - dabits: 12, - }, - {name:"dt2827", - adbits: 16, - adchan_se:0, - adchan_di:4, - ai_speed:10000, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt2828", - adbits: 12, - adchan_se:4, - adchan_di:0, - ai_speed:10000, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt2829", - adbits: 16, - adchan_se:8, - adchan_di:0, - ai_speed:33250, - ispgl: 0, - dachan: 2, - dabits: 16, - }, - {name:"dt21-ez", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:10000, - ispgl: 0, - dachan: 2, - dabits: 12, - }, - {name:"dt23-ez", - adbits: 16, - adchan_se:16, - adchan_di:8, - ai_speed:10000, - ispgl: 0, - dachan: 0, - dabits: 0, - }, - {name:"dt24-ez", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:10000, - ispgl: 0, - dachan: 0, - dabits: 0, - }, - {name:"dt24-ez-pgl", - adbits: 12, - adchan_se:16, - adchan_di:8, - ai_speed:10000, - ispgl: 1, - dachan: 0, - dabits: 0, - }, + {.name = "dt2821", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 20000, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2821-f", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 6500, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2821-g", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 4000, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2823", + .adbits = 16, + .adchan_se = 0, + .adchan_di = 4, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 2, + .dabits = 16, + }, + {.name = "dt2824-pgh", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 20000, + .ispgl = 0, + .dachan = 0, + .dabits = 0, + }, + {.name = "dt2824-pgl", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 20000, + .ispgl = 1, + .dachan = 0, + .dabits = 0, + }, + {.name = "dt2825", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 20000, + .ispgl = 1, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2827", + .adbits = 16, + .adchan_se = 0, + .adchan_di = 4, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2828", + .adbits = 12, + .adchan_se = 4, + .adchan_di = 0, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt2829", + .adbits = 16, + .adchan_se = 8, + .adchan_di = 0, + .ai_speed = 33250, + .ispgl = 0, + .dachan = 2, + .dabits = 16, + }, + {.name = "dt21-ez", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 2, + .dabits = 12, + }, + {.name = "dt23-ez", + .adbits = 16, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 0, + .dabits = 0, + }, + {.name = "dt24-ez", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 10000, + .ispgl = 0, + .dachan = 0, + .dabits = 0, + }, + {.name = "dt24-ez-pgl", + .adbits = 12, + .adchan_se = 16, + .adchan_di = 8, + .ai_speed = 10000, + .ispgl = 1, + .dachan = 0, + .dabits = 0, + }, }; #define n_boardtypes sizeof(boardtypes)/sizeof(struct dt282x_board) @@ -374,51 +374,51 @@ struct dt282x_private { * Some useless abstractions */ #define chan_to_DAC(a) ((a)&1) -#define update_dacsr(a) outw(devpriv->dacsr|(a),dev->iobase+DT2821_DACSR) -#define update_adcsr(a) outw(devpriv->adcsr|(a),dev->iobase+DT2821_ADCSR) +#define update_dacsr(a) outw(devpriv->dacsr|(a), dev->iobase+DT2821_DACSR) +#define update_adcsr(a) outw(devpriv->adcsr|(a), dev->iobase+DT2821_ADCSR) #define mux_busy() (inw(dev->iobase+DT2821_ADCSR)&DT2821_MUXBUSY) #define ad_done() (inw(dev->iobase+DT2821_ADCSR)&DT2821_ADDONE) -#define update_supcsr(a) outw(devpriv->supcsr|(a),dev->iobase+DT2821_SUPCSR) +#define update_supcsr(a) outw(devpriv->supcsr|(a), dev->iobase+DT2821_SUPCSR) /* * danger! macro abuse... a is the expression to wait on, and b is * the statement(s) to execute if it doesn't happen. */ -#define wait_for(a,b) \ +#define wait_for(a, b) \ do{ \ int _i; \ - for(_i=0;_i<DT2821_TIMEOUT;_i++){ \ - if(a){_i=0;break;} \ - comedi_udelay(5); \ + for (_i=0;_i<DT2821_TIMEOUT;_i++){ \ + if (a){_i=0;break;} \ + udelay(5); \ } \ - if(_i){b} \ - }while(0) + if (_i){b} \ + }while (0) -static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * it); -static int dt282x_detach(struct comedi_device * dev); +static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it); +static int dt282x_detach(struct comedi_device *dev); static struct comedi_driver driver_dt282x = { - driver_name:"dt282x", - module:THIS_MODULE, - attach:dt282x_attach, - detach:dt282x_detach, - board_name:&boardtypes[0].name, - num_names:n_boardtypes, - offset:sizeof(struct dt282x_board), + .driver_name = "dt282x", + .module = THIS_MODULE, + .attach = dt282x_attach, + .detach = dt282x_detach, + .board_name = &boardtypes[0].name, + .num_names = n_boardtypes, + .offset = sizeof(struct dt282x_board), }; COMEDI_INITCLEANUP(driver_dt282x); -static void free_resources(struct comedi_device * dev); -static int prep_ai_dma(struct comedi_device * dev, int chan, int size); -static int prep_ao_dma(struct comedi_device * dev, int chan, int size); -static int dt282x_ai_cancel(struct comedi_device * dev, struct comedi_subdevice * s); -static int dt282x_ao_cancel(struct comedi_device * dev, struct comedi_subdevice * s); +static void free_resources(struct comedi_device *dev); +static int prep_ai_dma(struct comedi_device *dev, int chan, int size); +static int prep_ao_dma(struct comedi_device *dev, int chan, int size); +static int dt282x_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s); +static int dt282x_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static int dt282x_ns_to_timer(int *nanosec, int round_mode); -static void dt282x_disable_dma(struct comedi_device * dev); +static void dt282x_disable_dma(struct comedi_device *dev); -static int dt282x_grab_dma(struct comedi_device * dev, int dma1, int dma2); +static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2); -static void dt282x_munge(struct comedi_device * dev, short * buf, +static void dt282x_munge(struct comedi_device *dev, short *buf, unsigned int nbytes) { unsigned int i; @@ -440,7 +440,7 @@ static void dt282x_munge(struct comedi_device * dev, short * buf, } } -static void dt282x_ao_dma_interrupt(struct comedi_device * dev) +static void dt282x_ao_dma_interrupt(struct comedi_device *dev) { void *ptr; int size; @@ -463,7 +463,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device * dev) size = cfc_read_array_from_buffer(s, ptr, devpriv->dma_maxsize); if (size == 0) { - rt_printk("dt282x: AO underrun\n"); + printk("dt282x: AO underrun\n"); dt282x_ao_cancel(dev, s); s->async->events |= COMEDI_CB_OVERFLOW; return; @@ -472,7 +472,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device * dev) return; } -static void dt282x_ai_dma_interrupt(struct comedi_device * dev) +static void dt282x_ai_dma_interrupt(struct comedi_device *dev) { void *ptr; int size; @@ -524,7 +524,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device * dev) prep_ai_dma(dev, i, 0); } -static int prep_ai_dma(struct comedi_device * dev, int dma_index, int n) +static int prep_ai_dma(struct comedi_device *dev, int dma_index, int n) { int dma_chan; unsigned long dma_ptr; @@ -555,7 +555,7 @@ static int prep_ai_dma(struct comedi_device * dev, int dma_index, int n) return n; } -static int prep_ao_dma(struct comedi_device * dev, int dma_index, int n) +static int prep_ao_dma(struct comedi_device *dev, int dma_index, int n) { int dma_chan; unsigned long dma_ptr; @@ -577,7 +577,7 @@ static int prep_ao_dma(struct comedi_device * dev, int dma_index, int n) return n; } -static irqreturn_t dt282x_interrupt(int irq, void *d PT_REGS_ARG) +static irqreturn_t dt282x_interrupt(int irq, void *d) { struct comedi_device *dev = d; struct comedi_subdevice *s; @@ -653,7 +653,7 @@ static irqreturn_t dt282x_interrupt(int irq, void *d PT_REGS_ARG) return IRQ_RETVAL(handled); } -static void dt282x_load_changain(struct comedi_device * dev, int n, +static void dt282x_load_changain(struct comedi_device *dev, int n, unsigned int *chanlist) { unsigned int i; @@ -674,8 +674,8 @@ static void dt282x_load_changain(struct comedi_device * dev, int n, * - 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_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data) { int i; @@ -706,8 +706,8 @@ static int dt282x_ai_insn_read(struct comedi_device * dev, struct comedi_subdevi return i; } -static int dt282x_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s, - struct comedi_cmd * cmd) +static int dt282x_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_cmd *cmd) { int err = 0; int tmp; @@ -818,7 +818,7 @@ static int dt282x_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevice return 0; } -static int dt282x_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s) +static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { struct comedi_cmd *cmd = &s->async->cmd; int timer; @@ -879,7 +879,7 @@ static int dt282x_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s return 0; } -static void dt282x_disable_dma(struct comedi_device * dev) +static void dt282x_disable_dma(struct comedi_device *dev) { if (devpriv->usedma) { disable_dma(devpriv->dma[0].chan); @@ -887,7 +887,7 @@ static void dt282x_disable_dma(struct comedi_device * dev) } } -static int dt282x_ai_cancel(struct comedi_device * dev, struct comedi_subdevice * s) +static int dt282x_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { dt282x_disable_dma(dev); @@ -937,16 +937,16 @@ static int dt282x_ns_to_timer(int *nanosec, int round_mode) * offset binary if necessary, loads the data into the DAC * data register, and performs the conversion. */ -static int dt282x_ao_insn_read(struct comedi_device * dev, struct comedi_subdevice * s, - struct comedi_insn * insn, unsigned int * data) +static int dt282x_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data) { data[0] = devpriv->ao[CR_CHAN(insn->chanspec)]; return 1; } -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_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data) { short d; unsigned int chan; @@ -978,8 +978,8 @@ static int dt282x_ao_insn_write(struct comedi_device * dev, struct comedi_subdev return 1; } -static int dt282x_ao_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s, - struct comedi_cmd * cmd) +static int dt282x_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_cmd *cmd) { int err = 0; int tmp; @@ -1029,7 +1029,7 @@ static int dt282x_ao_cmdtest(struct comedi_device * dev, struct comedi_subdevice cmd->start_arg = 0; err++; } - if (cmd->scan_begin_arg < 5000 /* XXX unknown */ ) { + if (cmd->scan_begin_arg < 5000 /* XXX unknown */) { cmd->scan_begin_arg = 5000; err++; } @@ -1069,7 +1069,7 @@ static int dt282x_ao_cmdtest(struct comedi_device * dev, struct comedi_subdevice } -static int dt282x_ao_inttrig(struct comedi_device * dev, struct comedi_subdevice * s, +static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int x) { int size; @@ -1080,7 +1080,7 @@ static int dt282x_ao_inttrig(struct comedi_device * dev, struct comedi_subdevice size = cfc_read_array_from_buffer(s, devpriv->dma[0].buf, devpriv->dma_maxsize); if (size == 0) { - rt_printk("dt282x: AO underrun\n"); + printk("dt282x: AO underrun\n"); return -EPIPE; } prep_ao_dma(dev, 0, size); @@ -1088,7 +1088,7 @@ static int dt282x_ao_inttrig(struct comedi_device * dev, struct comedi_subdevice size = cfc_read_array_from_buffer(s, devpriv->dma[1].buf, devpriv->dma_maxsize); if (size == 0) { - rt_printk("dt282x: AO underrun\n"); + printk("dt282x: AO underrun\n"); return -EPIPE; } prep_ao_dma(dev, 1, size); @@ -1099,7 +1099,7 @@ static int dt282x_ao_inttrig(struct comedi_device * dev, struct comedi_subdevice return 1; } -static int dt282x_ao_cmd(struct comedi_device * dev, struct comedi_subdevice * s) +static int dt282x_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { int timer; struct comedi_cmd *cmd = &s->async->cmd; @@ -1132,7 +1132,7 @@ static int dt282x_ao_cmd(struct comedi_device * dev, struct comedi_subdevice * s return 0; } -static int dt282x_ao_cancel(struct comedi_device * dev, struct comedi_subdevice * s) +static int dt282x_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { dt282x_disable_dma(dev); @@ -1145,8 +1145,8 @@ static int dt282x_ao_cancel(struct comedi_device * dev, struct comedi_subdevice return 0; } -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_bits(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data) { if (data[0]) { s->state &= ~data[0]; @@ -1159,8 +1159,8 @@ static int dt282x_dio_insn_bits(struct comedi_device * dev, struct comedi_subdev return 2; } -static int dt282x_dio_insn_config(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) { int mask; @@ -1240,7 +1240,7 @@ enum { opt_iobase = 0, opt_irq, opt_dma1, opt_dma2, /* i/o base, irq, dma channe 9 ao0 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V 10 ao1 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V */ -static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * it) +static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) { int i, irq; int ret; @@ -1298,19 +1298,18 @@ static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * i /* trigger interrupt */ - comedi_udelay(100); + udelay(100); irq = probe_irq_off(irqs); restore_flags(flags); - if (0 /* error */ ) { + if (0 /* error */) { printk(" error probing irq (bad)"); } } #endif if (irq > 0) { printk(" ( irq = %d )", irq); - ret = comedi_request_irq(irq, dt282x_interrupt, 0, "dt282x", - dev); + ret = request_irq(irq, dt282x_interrupt, 0, "dt282x", dev); if (ret < 0) { printk(" failed to get irq\n"); return -EIO; @@ -1326,7 +1325,8 @@ static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * i #endif } - if ((ret = alloc_private(dev, sizeof(struct dt282x_private))) < 0) + ret = alloc_private(dev, sizeof(struct dt282x_private)); + if (ret < 0) return ret; ret = dt282x_grab_dma(dev, it->options[opt_dma1], @@ -1334,7 +1334,8 @@ static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * i if (ret < 0) return ret; - if ((ret = alloc_subdevices(dev, 3)) < 0) + ret = alloc_subdevices(dev, 3); + if (ret < 0) return ret; s = dev->subdevices + 0; @@ -1358,7 +1359,9 @@ static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * i devpriv->ad_2scomp = it->options[opt_ai_twos]; s++; - if ((s->n_chan = boardtype.dachan)) { + + s->n_chan = boardtype.dachan; + if (s->n_chan) { /* ao subsystem */ s->type = COMEDI_SUBD_AO; dev->write_subdev = s; @@ -1396,10 +1399,10 @@ static int dt282x_attach(struct comedi_device * dev, struct comedi_devconfig * i return 0; } -static void free_resources(struct comedi_device * dev) +static void free_resources(struct comedi_device *dev) { if (dev->irq) { - comedi_free_irq(dev->irq, dev); + free_irq(dev->irq, dev); } if (dev->iobase) release_region(dev->iobase, DT2821_SIZE); @@ -1415,7 +1418,7 @@ static void free_resources(struct comedi_device * dev) } } -static int dt282x_detach(struct comedi_device * dev) +static int dt282x_detach(struct comedi_device *dev) { printk("comedi%d: dt282x: remove\n", dev->minor); @@ -1424,7 +1427,7 @@ static int dt282x_detach(struct comedi_device * dev) return 0; } -static int dt282x_grab_dma(struct comedi_device * dev, int dma1, int dma2) +static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2) { int ret; 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