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staging: comedi: s626: remove the uint16_t casts of the bit values

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There are a number of uint16_t casts used in the #define's of the
constant bit field values as well as the calls to DEBIreplace().
These cause a number of sparse warnings of the type:

warning: cast truncates bits from constant value (ffff1cff becomes 1cff)

Remove all of the casts and change the types of the parameters to
DEBIreplace from uin16_t to unsigned int. This fixes all the warnings.

Mask the addr that is or'ed with DEBI_CMD_RDWORD then written to the
P_DEBICMD register as well as the val written to the P_DEBIAD register
with 0xffff. The addr and val are only 16-bits but the registers are
32-bits.

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>
This commit is contained in:
H Hartley Sweeten 2013-03-26 15:42:58 -07:00 committed by Greg Kroah-Hartman
parent 7d856da216
commit 12f4e2f280
2 changed files with 49 additions and 53 deletions
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44
drivers/staging/comedi/drivers/s626.c
View File

@ -239,12 +239,13 @@ static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
* specifies bits that are to be preserved, wdata is new value to be
* or'd with the masked original.
*/
static void DEBIreplace(struct comedi_device *dev, uint16_t addr, uint16_t mask,
uint16_t wdata)
static void DEBIreplace(struct comedi_device *dev, unsigned int addr,
unsigned int mask, unsigned int wdata)
{
struct s626_private *devpriv = dev->private;
unsigned int val;
addr &= 0xffff;
writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
DEBItransfer(dev);
@ -252,7 +253,7 @@ static void DEBIreplace(struct comedi_device *dev, uint16_t addr, uint16_t mask,
val = readl(devpriv->mmio + P_DEBIAD);
val &= mask;
val |= wdata;
writel(val, devpriv->mmio + P_DEBIAD);
writel(val & 0xffff, devpriv->mmio + P_DEBIAD);
DEBItransfer(dev);
}
@ -594,8 +595,8 @@ static void SetLatchSource(struct comedi_device *dev, struct enc_private *k,
uint16_t value)
{
DEBIreplace(dev, k->MyCRB,
(uint16_t) (~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC)),
(uint16_t) (value << CRBBIT_LATCHSRC));
~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
value << CRBBIT_LATCHSRC);
}
/* Write value into counter preload register. */
@ -1815,13 +1816,13 @@ static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
static void ResetCapFlags_A(struct comedi_device *dev, struct enc_private *k)
{
DEBIreplace(dev, k->MyCRB, (uint16_t) (~CRBMSK_INTCTRL),
DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
}
static void ResetCapFlags_B(struct comedi_device *dev, struct enc_private *k)
{
DEBIreplace(dev, k->MyCRB, (uint16_t) (~CRBMSK_INTCTRL),
DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
}
@ -1966,8 +1967,7 @@ static void SetMode_A(struct comedi_device *dev, struct enc_private *k,
/* While retaining CounterB and LatchSrc configurations, program the */
/* new counter operating mode. */
DEBIreplace(dev, k->MyCRA, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
DEBIreplace(dev, k->MyCRB,
(uint16_t) (~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A)), crb);
DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
}
static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
@ -2028,8 +2028,7 @@ static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
/* While retaining CounterA and LatchSrc configurations, program the */
/* new counter operating mode. */
DEBIreplace(dev, k->MyCRA,
(uint16_t) (~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B)), cra);
DEBIreplace(dev, k->MyCRA, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B), cra);
DEBIreplace(dev, k->MyCRB, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
}
@ -2038,17 +2037,15 @@ static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
static void SetEnable_A(struct comedi_device *dev, struct enc_private *k,
uint16_t enab)
{
DEBIreplace(dev, k->MyCRB,
(uint16_t) (~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A)),
(uint16_t) (enab << CRBBIT_CLKENAB_A));
DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
enab << CRBBIT_CLKENAB_A);
}
static void SetEnable_B(struct comedi_device *dev, struct enc_private *k,
uint16_t enab)
{
DEBIreplace(dev, k->MyCRB,
(uint16_t) (~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B)),
(uint16_t) (enab << CRBBIT_CLKENAB_B));
DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
enab << CRBBIT_CLKENAB_B);
}
static uint16_t GetEnable_A(struct comedi_device *dev, struct enc_private *k)
@ -2077,16 +2074,15 @@ static uint16_t GetEnable_B(struct comedi_device *dev, struct enc_private *k)
static void SetLoadTrig_A(struct comedi_device *dev, struct enc_private *k,
uint16_t Trig)
{
DEBIreplace(dev, k->MyCRA, (uint16_t) (~CRAMSK_LOADSRC_A),
(uint16_t) (Trig << CRABIT_LOADSRC_A));
DEBIreplace(dev, k->MyCRA, ~CRAMSK_LOADSRC_A,
Trig << CRABIT_LOADSRC_A);
}
static void SetLoadTrig_B(struct comedi_device *dev, struct enc_private *k,
uint16_t Trig)
{
DEBIreplace(dev, k->MyCRB,
(uint16_t) (~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL)),
(uint16_t) (Trig << CRBBIT_LOADSRC_B));
DEBIreplace(dev, k->MyCRB, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
Trig << CRBBIT_LOADSRC_B);
}
static uint16_t GetLoadTrig_A(struct comedi_device *dev, struct enc_private *k)
@ -2110,12 +2106,12 @@ static void SetIntSrc_A(struct comedi_device *dev, struct enc_private *k,
struct s626_private *devpriv = dev->private;
/* Reset any pending counter overflow or index captures. */
DEBIreplace(dev, k->MyCRB, (uint16_t) (~CRBMSK_INTCTRL),
DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
/* Program counter interrupt source. */
DEBIreplace(dev, k->MyCRA, ~CRAMSK_INTSRC_A,
(uint16_t) (IntSource << CRABIT_INTSRC_A));
IntSource << CRABIT_INTSRC_A);
/* Update MISC2 interrupt enable mask. */
devpriv->CounterIntEnabs =

58
drivers/staging/comedi/drivers/s626.h
View File

@ -642,27 +642,27 @@
/* Bit field masks for CRA and CRB. */
#define CRAMSK_INDXSRC_B ((uint16_t)(3 << CRABIT_INDXSRC_B))
#define CRAMSK_CLKSRC_B ((uint16_t)(3 << CRABIT_CLKSRC_B))
#define CRAMSK_INDXPOL_A ((uint16_t)(1 << CRABIT_INDXPOL_A))
#define CRAMSK_LOADSRC_A ((uint16_t)(3 << CRABIT_LOADSRC_A))
#define CRAMSK_CLKMULT_A ((uint16_t)(3 << CRABIT_CLKMULT_A))
#define CRAMSK_INTSRC_A ((uint16_t)(3 << CRABIT_INTSRC_A))
#define CRAMSK_CLKPOL_A ((uint16_t)(3 << CRABIT_CLKPOL_A))
#define CRAMSK_INDXSRC_A ((uint16_t)(3 << CRABIT_INDXSRC_A))
#define CRAMSK_CLKSRC_A ((uint16_t)(3 << CRABIT_CLKSRC_A))
#define CRAMSK_INDXSRC_B (3 << CRABIT_INDXSRC_B)
#define CRAMSK_CLKSRC_B (3 << CRABIT_CLKSRC_B)
#define CRAMSK_INDXPOL_A (1 << CRABIT_INDXPOL_A)
#define CRAMSK_LOADSRC_A (3 << CRABIT_LOADSRC_A)
#define CRAMSK_CLKMULT_A (3 << CRABIT_CLKMULT_A)
#define CRAMSK_INTSRC_A (3 << CRABIT_INTSRC_A)
#define CRAMSK_CLKPOL_A (3 << CRABIT_CLKPOL_A)
#define CRAMSK_INDXSRC_A (3 << CRABIT_INDXSRC_A)
#define CRAMSK_CLKSRC_A (3 << CRABIT_CLKSRC_A)
#define CRBMSK_INTRESETCMD ((uint16_t)(1 << CRBBIT_INTRESETCMD))
#define CRBMSK_INTRESET_B ((uint16_t)(1 << CRBBIT_INTRESET_B))
#define CRBMSK_INTRESET_A ((uint16_t)(1 << CRBBIT_INTRESET_A))
#define CRBMSK_CLKENAB_A ((uint16_t)(1 << CRBBIT_CLKENAB_A))
#define CRBMSK_INTSRC_B ((uint16_t)(3 << CRBBIT_INTSRC_B))
#define CRBMSK_LATCHSRC ((uint16_t)(3 << CRBBIT_LATCHSRC))
#define CRBMSK_LOADSRC_B ((uint16_t)(3 << CRBBIT_LOADSRC_B))
#define CRBMSK_CLKMULT_B ((uint16_t)(3 << CRBBIT_CLKMULT_B))
#define CRBMSK_CLKENAB_B ((uint16_t)(1 << CRBBIT_CLKENAB_B))
#define CRBMSK_INDXPOL_B ((uint16_t)(1 << CRBBIT_INDXPOL_B))
#define CRBMSK_CLKPOL_B ((uint16_t)(1 << CRBBIT_CLKPOL_B))
#define CRBMSK_INTRESETCMD (1 << CRBBIT_INTRESETCMD)
#define CRBMSK_INTRESET_B (1 << CRBBIT_INTRESET_B)
#define CRBMSK_INTRESET_A (1 << CRBBIT_INTRESET_A)
#define CRBMSK_CLKENAB_A (1 << CRBBIT_CLKENAB_A)
#define CRBMSK_INTSRC_B (3 << CRBBIT_INTSRC_B)
#define CRBMSK_LATCHSRC (3 << CRBBIT_LATCHSRC)
#define CRBMSK_LOADSRC_B (3 << CRBBIT_LOADSRC_B)
#define CRBMSK_CLKMULT_B (3 << CRBBIT_CLKMULT_B)
#define CRBMSK_CLKENAB_B (1 << CRBBIT_CLKENAB_B)
#define CRBMSK_INDXPOL_B (1 << CRBBIT_INDXPOL_B)
#define CRBMSK_CLKPOL_B (1 << CRBBIT_CLKPOL_B)
#define CRBMSK_INTCTRL (CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A | CRBMSK_INTRESET_B) /* Interrupt reset control bits. */
@ -680,15 +680,15 @@
/* Bit field masks for standardized SETUP structure. */
#define STDMSK_INTSRC ((uint16_t)(3 << STDBIT_INTSRC))
#define STDMSK_LATCHSRC ((uint16_t)(3 << STDBIT_LATCHSRC))
#define STDMSK_LOADSRC ((uint16_t)(3 << STDBIT_LOADSRC))
#define STDMSK_INDXSRC ((uint16_t)(1 << STDBIT_INDXSRC))
#define STDMSK_INDXPOL ((uint16_t)(1 << STDBIT_INDXPOL))
#define STDMSK_CLKSRC ((uint16_t)(3 << STDBIT_CLKSRC))
#define STDMSK_CLKPOL ((uint16_t)(1 << STDBIT_CLKPOL))
#define STDMSK_CLKMULT ((uint16_t)(3 << STDBIT_CLKMULT))
#define STDMSK_CLKENAB ((uint16_t)(1 << STDBIT_CLKENAB))
#define STDMSK_INTSRC (3 << STDBIT_INTSRC)
#define STDMSK_LATCHSRC (3 << STDBIT_LATCHSRC)
#define STDMSK_LOADSRC (3 << STDBIT_LOADSRC)
#define STDMSK_INDXSRC (1 << STDBIT_INDXSRC)
#define STDMSK_INDXPOL (1 << STDBIT_INDXPOL)
#define STDMSK_CLKSRC (3 << STDBIT_CLKSRC)
#define STDMSK_CLKPOL (1 << STDBIT_CLKPOL)
#define STDMSK_CLKMULT (3 << STDBIT_CLKMULT)
#define STDMSK_CLKENAB (1 << STDBIT_CLKENAB)
struct bufferDMA {
dma_addr_t PhysicalBase;