diff options
author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-08-12 22:41:19 +0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-16 23:23:25 +0400 |
commit | 09d6dd7490ee7f1dda926e309df370e28679a71c (patch) | |
tree | ccf3c54cb2ba0aa2828f93ca955cf02abbb03f26 /drivers | |
parent | 4f9c63fe5333b27ab23ed399830c7977f6970744 (diff) | |
download | linux-09d6dd7490ee7f1dda926e309df370e28679a71c.tar.xz |
staging: comedi: 8255: add a comedi_device param to the (*io) callback
The 8255 driver uses an (*io) callback to read/write the registers
of the 8255 device. The default callback provided by the driver uses
inb()/outb() calls to access to registers based on an 'iobase' that
was initialized during the subdev_8255_init() and a 'port' value.
The users of this module can optionally provide a custom (*io) callback
to handle the read/write in another manner.
Make the (*io) callback a bit more flexible by also passing the
comedi_device pointer as a parameter.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/staging/comedi/drivers/8255.c | 33 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/8255.h | 6 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/8255_pci.c | 3 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas64.c | 6 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/daqboard2000.c | 3 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/ni_labpc.c | 3 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/ni_mio_common.c | 3 | ||||
-rw-r--r-- | drivers/staging/comedi/drivers/pcl724.c | 3 |
8 files changed, 36 insertions, 24 deletions
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c index a33a19622745..212e547ba77f 100644 --- a/drivers/staging/comedi/drivers/8255.c +++ b/drivers/staging/comedi/drivers/8255.c @@ -94,10 +94,11 @@ I/O port base address can be found in the output of 'lspci -v'. struct subdev_8255_private { unsigned long iobase; - int (*io)(int, int, int, unsigned long); + int (*io)(struct comedi_device *, int, int, int, unsigned long); }; -static int subdev_8255_io(int dir, int port, int data, unsigned long iobase) +static int subdev_8255_io(struct comedi_device *dev, + int dir, int port, int data, unsigned long iobase) { if (dir) { outb(data, iobase + port); @@ -113,8 +114,8 @@ void subdev_8255_interrupt(struct comedi_device *dev, unsigned long iobase = spriv->iobase; unsigned short d; - d = spriv->io(0, _8255_DATA, 0, iobase); - d |= (spriv->io(0, _8255_DATA + 1, 0, iobase) << 8); + d = spriv->io(dev, 0, _8255_DATA, 0, iobase); + d |= (spriv->io(dev, 0, _8255_DATA + 1, 0, iobase) << 8); comedi_buf_put(s, d); s->async->events |= COMEDI_CB_EOS; @@ -136,18 +137,18 @@ static int subdev_8255_insn(struct comedi_device *dev, mask = comedi_dio_update_state(s, data); if (mask) { if (mask & 0xff) - spriv->io(1, _8255_DATA, s->state & 0xff, iobase); + spriv->io(dev, 1, _8255_DATA, s->state & 0xff, iobase); if (mask & 0xff00) - spriv->io(1, _8255_DATA + 1, (s->state >> 8) & 0xff, - iobase); + spriv->io(dev, 1, _8255_DATA + 1, + (s->state >> 8) & 0xff, iobase); if (mask & 0xff0000) - spriv->io(1, _8255_DATA + 2, (s->state >> 16) & 0xff, - iobase); + spriv->io(dev, 1, _8255_DATA + 2, + (s->state >> 16) & 0xff, iobase); } - v = spriv->io(0, _8255_DATA, 0, iobase); - v |= (spriv->io(0, _8255_DATA + 1, 0, iobase) << 8); - v |= (spriv->io(0, _8255_DATA + 2, 0, iobase) << 16); + v = spriv->io(dev, 0, _8255_DATA, 0, iobase); + v |= (spriv->io(dev, 0, _8255_DATA + 1, 0, iobase) << 8); + v |= (spriv->io(dev, 0, _8255_DATA + 2, 0, iobase) << 16); data[1] = v; @@ -172,7 +173,7 @@ static void subdev_8255_do_config(struct comedi_device *dev, if (!(s->io_bits & 0xf00000)) config |= CR_C_HI_IO; - spriv->io(1, _8255_CR, config, iobase); + spriv->io(dev, 1, _8255_CR, config, iobase); } static int subdev_8255_insn_config(struct comedi_device *dev, @@ -261,7 +262,8 @@ static int subdev_8255_cancel(struct comedi_device *dev, } int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), + int (*io)(struct comedi_device *, + int, int, int, unsigned long), unsigned long iobase) { struct subdev_8255_private *spriv; @@ -288,7 +290,8 @@ int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s, EXPORT_SYMBOL_GPL(subdev_8255_init); int subdev_8255_init_irq(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), + int (*io)(struct comedi_device *, + int, int, int, unsigned long), unsigned long iobase) { int ret; diff --git a/drivers/staging/comedi/drivers/8255.h b/drivers/staging/comedi/drivers/8255.h index 795d232a6c02..c2c20db2f1d0 100644 --- a/drivers/staging/comedi/drivers/8255.h +++ b/drivers/staging/comedi/drivers/8255.h @@ -22,10 +22,12 @@ #include "../comedidev.h" int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), + int (*io)(struct comedi_device *, + int, int, int, unsigned long), unsigned long iobase); int subdev_8255_init_irq(struct comedi_device *dev, struct comedi_subdevice *s, - int (*io)(int, int, int, unsigned long), + int (*io)(struct comedi_device *, + int, int, int, unsigned long), unsigned long iobase); void subdev_8255_interrupt(struct comedi_device *dev, struct comedi_subdevice *s); diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c index f21e6567ac2f..cee3d18370fa 100644 --- a/drivers/staging/comedi/drivers/8255_pci.c +++ b/drivers/staging/comedi/drivers/8255_pci.c @@ -190,7 +190,8 @@ static int pci_8255_mite_init(struct pci_dev *pcidev) return 0; } -static int pci_8255_mmio(int dir, int port, int data, unsigned long iobase) +static int pci_8255_mmio(struct comedi_device *dev, + int dir, int port, int data, unsigned long iobase) { void __iomem *mmio_base = (void __iomem *)iobase; diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index fa12614cef2a..fafde70cbb51 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -3369,7 +3369,8 @@ static int ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) return 0; } -static int dio_callback(int dir, int port, int data, unsigned long arg) +static int dio_callback(struct comedi_device *dev, + int dir, int port, int data, unsigned long arg) { void __iomem *iobase = (void __iomem *)arg; @@ -3380,7 +3381,8 @@ static int dio_callback(int dir, int port, int data, unsigned long arg) return readb(iobase + port); } -static int dio_callback_4020(int dir, int port, int data, unsigned long arg) +static int dio_callback_4020(struct comedi_device *dev, + int dir, int port, int data, unsigned long arg) { void __iomem *iobase = (void __iomem *)arg; diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c index cd369cd40114..d728fbd6d3a0 100644 --- a/drivers/staging/comedi/drivers/daqboard2000.c +++ b/drivers/staging/comedi/drivers/daqboard2000.c @@ -651,7 +651,8 @@ static void daqboard2000_initializeDac(struct comedi_device *dev) daqboard2000_dacDisarm(dev); } -static int daqboard2000_8255_cb(int dir, int port, int data, +static int daqboard2000_8255_cb(struct comedi_device *dev, + int dir, int port, int data, unsigned long ioaddr) { void __iomem *mmio_base = (void __iomem *)ioaddr; diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 126d65cb39f2..fa108b9dd603 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -1035,7 +1035,8 @@ static int labpc_ao_insn_read(struct comedi_device *dev, return 1; } -static int labpc_8255_mmio(int dir, int port, int data, unsigned long arg) +static int labpc_8255_mmio(struct comedi_device *cdev, + int dir, int port, int data, unsigned long arg) { struct comedi_device *dev = (struct comedi_device *)arg; diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 297c95d2e0a3..07659053f4d3 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -4176,7 +4176,8 @@ static int ni_freq_out_insn_config(struct comedi_device *dev, return insn->n; } -static int ni_8255_callback(int dir, int port, int data, unsigned long arg) +static int ni_8255_callback(struct comedi_device *cdev, + int dir, int port, int data, unsigned long arg) { struct comedi_device *dev = (struct comedi_device *)arg; diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c index c7f8eb1cf8de..946b058eee6f 100644 --- a/drivers/staging/comedi/drivers/pcl724.c +++ b/drivers/staging/comedi/drivers/pcl724.c @@ -81,7 +81,8 @@ static const struct pcl724_board boardtypes[] = { }, }; -static int pcl724_8255mapped_io(int dir, int port, int data, +static int pcl724_8255mapped_io(struct comedi_device *dev, + int dir, int port, int data, unsigned long iobase) { int movport = SIZE_8255 * (iobase >> 12); |