From 24a446127966eb309dbdb9c5b72c5cd59bd6edf9 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 29 Jul 2014 15:01:27 -0700 Subject: [PATCH] staging: comedi: addi_apci_3xxx: use the comedi_device 'mmio' member Use the new 'mmio' member in the comedi_device for the ioremap'ed base address. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- .../staging/comedi/drivers/addi_apci_3xxx.c | 68 ++++++++----------- 1 file changed, 29 insertions(+), 39 deletions(-) diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c index 1b7cbf400c10..0f0c7fa5daa3 100644 --- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c +++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c @@ -353,7 +353,6 @@ static const struct apci3xxx_boardinfo apci3xxx_boardtypes[] = { }; struct apci3xxx_private { - void __iomem *mmio; unsigned int ai_timer; unsigned char ai_time_base; }; @@ -361,18 +360,17 @@ struct apci3xxx_private { static irqreturn_t apci3xxx_irq_handler(int irq, void *d) { struct comedi_device *dev = d; - struct apci3xxx_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; unsigned int status; unsigned int val; /* Test if interrupt occur */ - status = readl(devpriv->mmio + 16); + status = readl(dev->mmio + 16); if ((status & 0x2) == 0x2) { /* Reset the interrupt */ - writel(status, devpriv->mmio + 16); + writel(status, dev->mmio + 16); - val = readl(devpriv->mmio + 28); + val = readl(dev->mmio + 28); comedi_buf_put(s, val); s->async->events |= COMEDI_CB_EOA; @@ -385,9 +383,7 @@ static irqreturn_t apci3xxx_irq_handler(int irq, void *d) static int apci3xxx_ai_started(struct comedi_device *dev) { - struct apci3xxx_private *devpriv = dev->private; - - if ((readl(devpriv->mmio + 8) & 0x80000) == 0x80000) + if ((readl(dev->mmio + 8) & 0x80000) == 0x80000) return 1; return 0; @@ -395,7 +391,6 @@ static int apci3xxx_ai_started(struct comedi_device *dev) static int apci3xxx_ai_setup(struct comedi_device *dev, unsigned int chanspec) { - struct apci3xxx_private *devpriv = dev->private; unsigned int chan = CR_CHAN(chanspec); unsigned int range = CR_RANGE(chanspec); unsigned int aref = CR_AREF(chanspec); @@ -406,29 +401,29 @@ static int apci3xxx_ai_setup(struct comedi_device *dev, unsigned int chanspec) return -EBUSY; /* Clear the FIFO */ - writel(0x10000, devpriv->mmio + 12); + writel(0x10000, dev->mmio + 12); /* Get and save the delay mode */ - delay_mode = readl(devpriv->mmio + 4); + delay_mode = readl(dev->mmio + 4); delay_mode &= 0xfffffef0; /* Channel configuration selection */ - writel(delay_mode, devpriv->mmio + 4); + writel(delay_mode, dev->mmio + 4); /* Make the configuration */ val = (range & 3) | ((range >> 2) << 6) | ((aref == AREF_DIFF) << 7); - writel(val, devpriv->mmio + 0); + writel(val, dev->mmio + 0); /* Channel selection */ - writel(delay_mode | 0x100, devpriv->mmio + 4); - writel(chan, devpriv->mmio + 0); + writel(delay_mode | 0x100, dev->mmio + 4); + writel(chan, dev->mmio + 0); /* Restore delay mode */ - writel(delay_mode, devpriv->mmio + 4); + writel(delay_mode, dev->mmio + 4); /* Set the number of sequence to 1 */ - writel(1, devpriv->mmio + 48); + writel(1, dev->mmio + 48); return 0; } @@ -438,10 +433,9 @@ static int apci3xxx_ai_eoc(struct comedi_device *dev, struct comedi_insn *insn, unsigned long context) { - struct apci3xxx_private *devpriv = dev->private; unsigned int status; - status = readl(devpriv->mmio + 20); + status = readl(dev->mmio + 20); if (status & 0x1) return 0; return -EBUSY; @@ -452,7 +446,6 @@ static int apci3xxx_ai_insn_read(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - struct apci3xxx_private *devpriv = dev->private; int ret; int i; @@ -462,7 +455,7 @@ static int apci3xxx_ai_insn_read(struct comedi_device *dev, for (i = 0; i < insn->n; i++) { /* Start the conversion */ - writel(0x80000, devpriv->mmio + 8); + writel(0x80000, dev->mmio + 8); /* Wait the EOS */ ret = comedi_timeout(dev, s, insn, apci3xxx_ai_eoc, 0); @@ -470,7 +463,7 @@ static int apci3xxx_ai_insn_read(struct comedi_device *dev, return ret; /* Read the analog value */ - data[i] = readl(devpriv->mmio + 28); + data[i] = readl(dev->mmio + 28); } return insn->n; @@ -594,13 +587,13 @@ static int apci3xxx_ai_cmd(struct comedi_device *dev, return ret; /* Set the convert timing unit */ - writel(devpriv->ai_time_base, devpriv->mmio + 36); + writel(devpriv->ai_time_base, dev->mmio + 36); /* Set the convert timing */ - writel(devpriv->ai_timer, devpriv->mmio + 32); + writel(devpriv->ai_timer, dev->mmio + 32); /* Start the conversion */ - writel(0x180000, devpriv->mmio + 8); + writel(0x180000, dev->mmio + 8); return 0; } @@ -616,10 +609,9 @@ static int apci3xxx_ao_eoc(struct comedi_device *dev, struct comedi_insn *insn, unsigned long context) { - struct apci3xxx_private *devpriv = dev->private; unsigned int status; - status = readl(devpriv->mmio + 96); + status = readl(dev->mmio + 96); if (status & 0x100) return 0; return -EBUSY; @@ -630,7 +622,6 @@ static int apci3xxx_ao_insn_write(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - struct apci3xxx_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); unsigned int range = CR_RANGE(insn->chanspec); int ret; @@ -638,10 +629,10 @@ static int apci3xxx_ao_insn_write(struct comedi_device *dev, for (i = 0; i < insn->n; i++) { /* Set the range selection */ - writel(range, devpriv->mmio + 96); + writel(range, dev->mmio + 96); /* Write the analog value to the selected channel */ - writel((data[i] << 8) | chan, devpriv->mmio + 100); + writel((data[i] << 8) | chan, dev->mmio + 100); /* Wait the end of transfer */ ret = comedi_timeout(dev, s, insn, apci3xxx_ao_eoc, 0); @@ -740,7 +731,6 @@ static int apci3xxx_dio_insn_bits(struct comedi_device *dev, static int apci3xxx_reset(struct comedi_device *dev) { - struct apci3xxx_private *devpriv = dev->private; unsigned int val; int i; @@ -748,18 +738,18 @@ static int apci3xxx_reset(struct comedi_device *dev) disable_irq(dev->irq); /* Clear the start command */ - writel(0, devpriv->mmio + 8); + writel(0, dev->mmio + 8); /* Reset the interrupt flags */ - val = readl(devpriv->mmio + 16); - writel(val, devpriv->mmio + 16); + val = readl(dev->mmio + 16); + writel(val, dev->mmio + 16); /* clear the EOS */ - readl(devpriv->mmio + 20); + readl(dev->mmio + 20); /* Clear the FIFO */ for (i = 0; i < 16; i++) - val = readl(devpriv->mmio + 28); + val = readl(dev->mmio + 28); /* Enable the interrupt */ enable_irq(dev->irq); @@ -794,7 +784,7 @@ static int apci3xxx_auto_attach(struct comedi_device *dev, return ret; dev->iobase = pci_resource_start(pcidev, 2); - devpriv->mmio = pci_ioremap_bar(pcidev, 3); + dev->mmio = pci_ioremap_bar(pcidev, 3); if (pcidev->irq > 0) { ret = request_irq(pcidev->irq, apci3xxx_irq_handler, @@ -918,8 +908,8 @@ static void apci3xxx_detach(struct comedi_device *dev) apci3xxx_reset(dev); if (dev->irq) free_irq(dev->irq, dev); - if (devpriv->mmio) - iounmap(devpriv->mmio); + if (dev->mmio) + iounmap(dev->mmio); } comedi_pci_disable(dev); } -- 2.39.5