diff options
| author |   Ian Abbott <abbotti@mev.co.uk> | 2016-05-20 14:49:18 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-17 20:59:52 -0700 |
| commit | 3dcf1b5596603076cf127a3efdf3a33a276d8b9e (patch) | |
| tree | 4f5c89f11da5b2aca22b2b41f2f5c05a5fa00675 /drivers/staging/comedi/drivers/cb_pcidas64.c | |
| parent | staging: comedi: drivers: re-do PLX PCI 9080 DMADPRx register values (diff) | |
| download | linux-dev-3dcf1b5596603076cf127a3efdf3a33a276d8b9e.tar.xz linux-dev-3dcf1b5596603076cf127a3efdf3a33a276d8b9e.zip | |
staging: comedi: drivers: re-do PLX PCI 9080 DMACSRx register values
Replace the existing macros in "plx9080.h" that define values for the
DMACSR0 and DMACSR0 registers. Use the prefix `PLX_DMACSR_` for the
macros. Make use of the `BIT(x)` macro to define the values.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcidas64.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas64.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index a4d10a3480f8..1f9c08a845b6 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -2368,7 +2368,7 @@ static inline void dma_start_sync(struct comedi_device *dev, /* spinlock for plx dma control/status reg */ spin_lock_irqsave(&dev->spinlock, flags); - writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | PLX_CLEAR_DMA_INTR_BIT, + writeb(PLX_DMACSR_ENABLE | PLX_DMACSR_START | PLX_DMACSR_CLEARINTR, devpriv->plx9080_iobase + PLX_REG_DMACSR(channel)); spin_unlock_irqrestore(&dev->spinlock, flags); } @@ -2838,10 +2838,10 @@ static void handle_ai_interrupt(struct comedi_device *dev, spin_lock_irqsave(&dev->spinlock, flags); dma1_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR1); if (plx_status & PLX_INTCSR_DMA1IA) { /* dma chan 1 interrupt */ - writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT, + writeb((dma1_status & PLX_DMACSR_ENABLE) | PLX_DMACSR_CLEARINTR, devpriv->plx9080_iobase + PLX_REG_DMACSR1); - if (dma1_status & PLX_DMA_EN_BIT) + if (dma1_status & PLX_DMACSR_ENABLE) drain_dma_buffers(dev, 1); } spin_unlock_irqrestore(&dev->spinlock, flags); @@ -2889,7 +2889,7 @@ static int last_ao_dma_load_completed(struct comedi_device *dev) buffer_index = prev_ao_dma_index(dev); dma_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR0); - if ((dma_status & PLX_DMA_DONE_BIT) == 0) + if ((dma_status & PLX_DMACSR_DONE) == 0) return 0; transfer_address = @@ -2903,8 +2903,8 @@ static int last_ao_dma_load_completed(struct comedi_device *dev) static inline int ao_dma_needs_restart(struct comedi_device *dev, unsigned short dma_status) { - if ((dma_status & PLX_DMA_DONE_BIT) == 0 || - (dma_status & PLX_DMA_EN_BIT) == 0) + if ((dma_status & PLX_DMACSR_DONE) == 0 || + (dma_status & PLX_DMACSR_ENABLE) == 0) return 0; if (last_ao_dma_load_completed(dev)) return 0; @@ -3016,16 +3016,16 @@ static void handle_ao_interrupt(struct comedi_device *dev, spin_lock_irqsave(&dev->spinlock, flags); dma0_status = readb(devpriv->plx9080_iobase + PLX_REG_DMACSR0); if (plx_status & PLX_INTCSR_DMA0IA) { /* dma chan 0 interrupt */ - if ((dma0_status & PLX_DMA_EN_BIT) && - !(dma0_status & PLX_DMA_DONE_BIT)) { - writeb(PLX_DMA_EN_BIT | PLX_CLEAR_DMA_INTR_BIT, + if ((dma0_status & PLX_DMACSR_ENABLE) && + !(dma0_status & PLX_DMACSR_DONE)) { + writeb(PLX_DMACSR_ENABLE | PLX_DMACSR_CLEARINTR, devpriv->plx9080_iobase + PLX_REG_DMACSR0); } else { - writeb(PLX_CLEAR_DMA_INTR_BIT, + writeb(PLX_DMACSR_CLEARINTR, devpriv->plx9080_iobase + PLX_REG_DMACSR0); } spin_unlock_irqrestore(&dev->spinlock, flags); - if (dma0_status & PLX_DMA_EN_BIT) { + if (dma0_status & PLX_DMACSR_ENABLE) { load_ao_dma(dev, cmd); /* try to recover from dma end-of-chain event */ if (ao_dma_needs_restart(dev, dma0_status)) |