From d493f213ab2bfcc41792f904abee75ecfd6afc10 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 May 2012 16:09:58 -0700 Subject: [PATCH] staging: comedi: remove thisboard macro in the das16 driver The 'thisboard' macro depends on having a local variable with a magic name. The CodingStyle document suggests not doing this to avoid confusion. Remove the macro and use the comedi_board() inline helper to get the dev->board_ptr information. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Mori Hess Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/das16.c | 106 ++++++++++++++++++--------------- 1 file changed, 58 insertions(+), 48 deletions(-) diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index 998444c..6170536 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -393,11 +393,11 @@ struct das16_private_struct { volatile short timer_mode; /* true if using timer mode */ }; #define devpriv ((struct das16_private_struct *)(dev->private)) -#define thisboard ((struct das16_board *)(dev->board_ptr)) static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + const struct das16_board *board = comedi_board(dev); int err = 0, tmp; int gain, start_chan, i; int mask; @@ -411,7 +411,7 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, tmp = cmd->scan_begin_src; mask = TRIG_FOLLOW; /* if board supports burst mode */ - if (thisboard->size > 0x400) + if (board->size > 0x400) mask |= TRIG_TIMER | TRIG_EXT; cmd->scan_begin_src &= mask; if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) @@ -420,7 +420,7 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, tmp = cmd->convert_src; mask = TRIG_TIMER | TRIG_EXT; /* if board supports burst mode */ - if (thisboard->size > 0x400) + if (board->size > 0x400) mask |= TRIG_NOW; cmd->convert_src &= mask; if (!cmd->convert_src || tmp != cmd->convert_src) @@ -483,15 +483,15 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, /* check against maximum frequency */ if (cmd->scan_begin_src == TRIG_TIMER) { if (cmd->scan_begin_arg < - thisboard->ai_speed * cmd->chanlist_len) { + board->ai_speed * cmd->chanlist_len) { cmd->scan_begin_arg = - thisboard->ai_speed * cmd->chanlist_len; + board->ai_speed * cmd->chanlist_len; err++; } } if (cmd->convert_src == TRIG_TIMER) { - if (cmd->convert_arg < thisboard->ai_speed) { - cmd->convert_arg = thisboard->ai_speed; + if (cmd->convert_arg < board->ai_speed) { + cmd->convert_arg = board->ai_speed; err++; } } @@ -614,6 +614,7 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns, static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) { + const struct das16_board *board = comedi_board(dev); struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned int byte; @@ -637,7 +638,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) cmd->stop_arg * cmd->chanlist_len * sizeof(uint16_t); /* disable conversions for das1600 mode */ - if (thisboard->size > 0x400) + if (board->size > 0x400) outb(DAS1600_CONV_DISABLE, dev->iobase + DAS1600_CONV); /* set scan limits */ @@ -648,9 +649,9 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) /* set gain (this is also burst rate register but according to * computer boards manual, burst rate does nothing, even on * keithley cards) */ - if (thisboard->ai_pg != das16_pg_none) { + if (board->ai_pg != das16_pg_none) { range = CR_RANGE(cmd->chanlist[0]); - outb((das16_gainlists[thisboard->ai_pg])[range], + outb((das16_gainlists[board->ai_pg])[range], dev->iobase + DAS16_GAIN); } @@ -663,7 +664,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) /* enable counters */ byte = 0; /* Enable burst mode if appropriate. */ - if (thisboard->size > 0x400) { + if (board->size > 0x400) { if (cmd->convert_src == TRIG_NOW) { outb(DAS1600_BURST_VAL, dev->iobase + DAS1600_BURST); /* set burst length */ @@ -710,7 +711,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) outb(devpriv->control_state, dev->iobase + DAS16_CONTROL); /* Enable conversions if using das1600 mode */ - if (thisboard->size > 0x400) + if (board->size > 0x400) outb(0, dev->iobase + DAS1600_CONV); @@ -719,6 +720,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + const struct das16_board *board = comedi_board(dev); unsigned long flags; spin_lock_irqsave(&dev->spinlock, flags); @@ -735,7 +737,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s) } /* disable burst mode */ - if (thisboard->size > 0x400) + if (board->size > 0x400) outb(0, dev->iobase + DAS1600_BURST); @@ -755,6 +757,7 @@ static void das16_reset(struct comedi_device *dev) static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + const struct das16_board *board = comedi_board(dev); int i, n; int range; int chan; @@ -770,9 +773,9 @@ static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, outb(chan, dev->iobase + DAS16_MUX); /* set gain */ - if (thisboard->ai_pg != das16_pg_none) { + if (board->ai_pg != das16_pg_none) { range = CR_RANGE(insn->chanspec); - outb((das16_gainlists[thisboard->ai_pg])[range], + outb((das16_gainlists[board->ai_pg])[range], dev->iobase + DAS16_GAIN); } @@ -790,7 +793,7 @@ static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, } msb = inb(dev->iobase + DAS16_AI_MSB); lsb = inb(dev->iobase + DAS16_AI_LSB); - if (thisboard->ai_nbits == 12) + if (board->ai_nbits == 12) data[n] = ((lsb >> 4) & 0xf) | (msb << 4); else data[n] = lsb | (msb << 8); @@ -835,6 +838,7 @@ static int das16_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, static int das16_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + const struct das16_board *board = comedi_board(dev); int i; int lsb, msb; int chan; @@ -842,7 +846,7 @@ static int das16_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, chan = CR_CHAN(insn->chanspec); for (i = 0; i < insn->n; i++) { - if (thisboard->ao_nbits == 12) { + if (board->ao_nbits == 12) { lsb = (data[i] << 4) & 0xff; msb = (data[i] >> 4) & 0xff; } else { @@ -892,6 +896,7 @@ static int disable_dma_on_even(struct comedi_device *dev) static void das16_interrupt(struct comedi_device *dev) { + const struct das16_board *board = comedi_board(dev); unsigned long dma_flags, spin_flags; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async; @@ -953,7 +958,7 @@ static void das16_interrupt(struct comedi_device *dev) set_dma_count(devpriv->dma_chan, devpriv->dma_transfer_size); enable_dma(devpriv->dma_chan); /* reenable conversions for das1600 mode, (stupid hardware) */ - if (thisboard->size > 0x400 && devpriv->timer_mode == 0) + if (board->size > 0x400 && devpriv->timer_mode == 0) outb(0x00, dev->iobase + DAS1600_CONV); } @@ -1015,6 +1020,7 @@ static void reg_dump(struct comedi_device *dev) static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct das16_board *board = comedi_board(dev); int status; int diobits; @@ -1039,9 +1045,9 @@ static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it) diobits = inb(dev->iobase + DAS16_DIO) & 0xf0; printk(KERN_INFO " id bits are 0x%02x\n", diobits); - if (thisboard->id != diobits) { + if (board->id != diobits) { printk(KERN_INFO " requested board's id bits are 0x%x (ignore)\n", - thisboard->id); + board->id); } return 0; @@ -1071,12 +1077,13 @@ static void das16_ai_munge(struct comedi_device *dev, unsigned int num_bytes, unsigned int start_chan_index) { + const struct das16_board *board = comedi_board(dev); unsigned int i, num_samples = num_bytes / sizeof(short); short *data = array; for (i = 0; i < num_samples; i++) { data[i] = le16_to_cpu(data[i]); - if (thisboard->ai_nbits == 12) + if (board->ai_nbits == 12) data[i] = (data[i] >> 4) & 0xfff; } @@ -1092,6 +1099,7 @@ static void das16_ai_munge(struct comedi_device *dev, */ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct das16_board *board = comedi_board(dev); struct comedi_subdevice *s; int ret; unsigned int irq; @@ -1130,9 +1138,9 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret < 0) return ret; - if (thisboard->size < 0x400) { - printk(" 0x%04lx-0x%04lx\n", iobase, iobase + thisboard->size); - if (!request_region(iobase, thisboard->size, "das16")) { + if (board->size < 0x400) { + printk(" 0x%04lx-0x%04lx\n", iobase, iobase + board->size); + if (!request_region(iobase, board->size, "das16")) { printk(KERN_ERR " I/O port conflict\n"); return -EIO; } @@ -1140,18 +1148,18 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) printk(KERN_INFO " 0x%04lx-0x%04lx 0x%04lx-0x%04lx\n", iobase, iobase + 0x0f, iobase + 0x400, - iobase + 0x400 + (thisboard->size & 0x3ff)); + iobase + 0x400 + (board->size & 0x3ff)); if (!request_region(iobase, 0x10, "das16")) { printk(KERN_ERR " I/O port conflict: 0x%04lx-0x%04lx\n", iobase, iobase + 0x0f); return -EIO; } - if (!request_region(iobase + 0x400, thisboard->size & 0x3ff, + if (!request_region(iobase + 0x400, board->size & 0x3ff, "das16")) { release_region(iobase, 0x10); printk(KERN_ERR " I/O port conflict: 0x%04lx-0x%04lx\n", iobase + 0x400, - iobase + 0x400 + (thisboard->size & 0x3ff)); + iobase + 0x400 + (board->size & 0x3ff)); return -EIO; } } @@ -1163,10 +1171,10 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) printk(KERN_ERR " id bits do not match selected board, aborting\n"); return -EINVAL; } - dev->board_name = thisboard->name; + dev->board_name = board->name; /* get master clock speed */ - if (thisboard->size < 0x400) { + if (board->size < 0x400) { if (it->options[3]) devpriv->clockbase = 1000 / it->options[3]; else @@ -1222,7 +1230,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) } /* get any user-defined input range */ - if (thisboard->ai_pg == das16_pg_none && + if (board->ai_pg == das16_pg_none && (it->options[4] || it->options[5])) { /* allocate single-range range table */ devpriv->user_ai_range_table = @@ -1263,7 +1271,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 0; dev->read_subdev = s; /* ai */ - if (thisboard->ai) { + if (board->ai) { s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_CMD_READ; if (devpriv->ai_singleended) { @@ -1275,15 +1283,15 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) s->len_chanlist = 8; s->subdev_flags |= SDF_DIFF; } - s->maxdata = (1 << thisboard->ai_nbits) - 1; + s->maxdata = (1 << board->ai_nbits) - 1; if (devpriv->user_ai_range_table) { /* user defined ai range */ s->range_table = devpriv->user_ai_range_table; } else if (devpriv->ai_unipolar) { - s->range_table = das16_ai_uni_lranges[thisboard->ai_pg]; + s->range_table = das16_ai_uni_lranges[board->ai_pg]; } else { - s->range_table = das16_ai_bip_lranges[thisboard->ai_pg]; + s->range_table = das16_ai_bip_lranges[board->ai_pg]; } - s->insn_read = thisboard->ai; + s->insn_read = board->ai; s->do_cmdtest = das16_cmd_test; s->do_cmd = das16_cmd_exec; s->cancel = das16_cancel; @@ -1294,44 +1302,44 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 1; /* ao */ - if (thisboard->ao) { + if (board->ao) { s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = 2; - s->maxdata = (1 << thisboard->ao_nbits) - 1; + s->maxdata = (1 << board->ao_nbits) - 1; /* user defined ao range */ if (devpriv->user_ao_range_table) s->range_table = devpriv->user_ao_range_table; else s->range_table = &range_unknown; - s->insn_write = thisboard->ao; + s->insn_write = board->ao; } else { s->type = COMEDI_SUBD_UNUSED; } s = dev->subdevices + 2; /* di */ - if (thisboard->di) { + if (board->di) { s->type = COMEDI_SUBD_DI; s->subdev_flags = SDF_READABLE; s->n_chan = 4; s->maxdata = 1; s->range_table = &range_digital; - s->insn_bits = thisboard->di; + s->insn_bits = board->di; } else { s->type = COMEDI_SUBD_UNUSED; } s = dev->subdevices + 3; /* do */ - if (thisboard->do_) { + if (board->do_) { s->type = COMEDI_SUBD_DO; s->subdev_flags = SDF_WRITABLE | SDF_READABLE; s->n_chan = 4; s->maxdata = 1; s->range_table = &range_digital; - s->insn_bits = thisboard->do_; + s->insn_bits = board->do_; /* initialize digital output lines */ outb(s->state, dev->iobase + DAS16_DIO); } else { @@ -1340,9 +1348,9 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 4; /* 8255 */ - if (thisboard->i8255_offset != 0) { + if (board->i8255_offset != 0) { subdev_8255_init(dev, s, NULL, (dev->iobase + - thisboard->i8255_offset)); + board->i8255_offset)); } else { s->type = COMEDI_SUBD_UNUSED; } @@ -1353,7 +1361,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) outb(devpriv->control_state, dev->iobase + DAS16_CONTROL); /* turn on das1600 mode if available */ - if (thisboard->size > 0x400) { + if (board->size > 0x400) { outb(DAS1600_ENABLE_VAL, dev->iobase + DAS1600_ENABLE); outb(0, dev->iobase + DAS1600_CONV); outb(0, dev->iobase + DAS1600_BURST); @@ -1364,6 +1372,8 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void das16_detach(struct comedi_device *dev) { + const struct das16_board *board = comedi_board(dev); + das16_reset(dev); if (dev->subdevices) subdev_8255_cleanup(dev, dev->subdevices + 4); @@ -1384,12 +1394,12 @@ static void das16_detach(struct comedi_device *dev) if (dev->irq) free_irq(dev->irq, dev); if (dev->iobase) { - if (thisboard->size < 0x400) { - release_region(dev->iobase, thisboard->size); + if (board->size < 0x400) { + release_region(dev->iobase, board->size); } else { release_region(dev->iobase, 0x10); release_region(dev->iobase + 0x400, - thisboard->size & 0x3ff); + board->size & 0x3ff); } } } -- 2.7.4