staging: comedi: s626: remove forward declarations 3

Move the I2C functions up to remove the need for the forward
declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 1efa2f021647a003b0eeac289b9e0a8b0793d0b1..5fcb43ae5471b50cbae3f09ecfd4c68b9fc83ffb 100644 (file)
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -216,8 +216,6 @@ static int s626_ns_to_timer(int *nanosec, int round_mode);
 /* internal routines */
 static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
                         uint8_t DacData);
-static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr);
-static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val);
 static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata);
 static void SendDAC(struct comedi_device *dev, uint32_t val);
 
@@ -493,6 +491,67 @@ static void DEBIreplace(struct comedi_device *dev, uint16_t addr, uint16_t mask,
        DEBItransfer(dev);      /*  Execute the DEBI Write transfer. */
 }
 
+/* **************  EEPROM ACCESS FUNCTIONS  ************** */
+
+static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
+{
+       /*  Write I2C command to I2C Transfer Control shadow register. */
+       WR7146(P_I2CCTRL, val);
+
+       /*  Upload I2C shadow registers into working registers and wait for */
+       /*  upload confirmation. */
+
+       MC_ENABLE(P_MC2, MC2_UPLD_IIC);
+       while (!MC_TEST(P_MC2, MC2_UPLD_IIC))
+               ;
+
+       /*  Wait until I2C bus transfer is finished or an error occurs. */
+       while ((RR7146(P_I2CCTRL) & (I2C_BUSY | I2C_ERR)) == I2C_BUSY)
+               ;
+
+       /*  Return non-zero if I2C error occurred. */
+       return RR7146(P_I2CCTRL) & I2C_ERR;
+
+}
+
+/*  Read uint8_t from EEPROM. */
+static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
+{
+       uint8_t rtnval;
+
+       /*  Send EEPROM target address. */
+       if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CW)
+                        /* Byte2 = I2C command: write to I2C EEPROM  device. */
+                        | I2C_B1(I2C_ATTRSTOP, addr)
+                        /* Byte1 = EEPROM internal target address. */
+                        | I2C_B0(I2C_ATTRNOP, 0))) {   /*  Byte0 = Not sent. */
+               /*  Abort function and declare error if handshake failed. */
+               DEBUG("I2Cread: error handshake I2Cread  a\n");
+               return 0;
+       }
+       /*  Execute EEPROM read. */
+       if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CR)
+
+                        /*  Byte2 = I2C */
+                        /*  command: read */
+                        /*  from I2C EEPROM */
+                        /*  device. */
+                        |I2C_B1(I2C_ATTRSTOP, 0)
+
+                        /*  Byte1 receives */
+                        /*  uint8_t from */
+                        /*  EEPROM. */
+                        |I2C_B0(I2C_ATTRNOP, 0))) {    /*  Byte0 = Not  sent. */
+
+               /*  Abort function and declare error if handshake failed. */
+               DEBUG("I2Cread: error handshake I2Cread b\n");
+               return 0;
+       }
+       /*  Return copy of EEPROM value. */
+       rtnval = (uint8_t) (RR7146(P_I2CCTRL) >> 16);
+       return rtnval;
+}
+
 static unsigned int s626_ai_reg_to_uint(int data)
 {
        unsigned int tempdata;
@@ -1938,67 +1997,6 @@ static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
                | (uint32_t) DacData);  /*  Include DAC setpoint data. */
 }
 
-/* **************  EEPROM ACCESS FUNCTIONS  ************** */
-/*  Read uint8_t from EEPROM. */
-
-static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
-{
-       uint8_t rtnval;
-
-       /*  Send EEPROM target address. */
-       if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CW)
-                        /* Byte2 = I2C command: write to I2C EEPROM  device. */
-                        | I2C_B1(I2C_ATTRSTOP, addr)
-                        /* Byte1 = EEPROM internal target address. */
-                        | I2C_B0(I2C_ATTRNOP, 0))) {   /*  Byte0 = Not sent. */
-               /*  Abort function and declare error if handshake failed. */
-               DEBUG("I2Cread: error handshake I2Cread  a\n");
-               return 0;
-       }
-       /*  Execute EEPROM read. */
-       if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CR)
-
-                        /*  Byte2 = I2C */
-                        /*  command: read */
-                        /*  from I2C EEPROM */
-                        /*  device. */
-                        |I2C_B1(I2C_ATTRSTOP, 0)
-
-                        /*  Byte1 receives */
-                        /*  uint8_t from */
-                        /*  EEPROM. */
-                        |I2C_B0(I2C_ATTRNOP, 0))) {    /*  Byte0 = Not  sent. */
-
-               /*  Abort function and declare error if handshake failed. */
-               DEBUG("I2Cread: error handshake I2Cread b\n");
-               return 0;
-       }
-       /*  Return copy of EEPROM value. */
-       rtnval = (uint8_t) (RR7146(P_I2CCTRL) >> 16);
-       return rtnval;
-}
-
-static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
-{
-       /*  Write I2C command to I2C Transfer Control shadow register. */
-       WR7146(P_I2CCTRL, val);
-
-       /*  Upload I2C shadow registers into working registers and wait for */
-       /*  upload confirmation. */
-
-       MC_ENABLE(P_MC2, MC2_UPLD_IIC);
-       while (!MC_TEST(P_MC2, MC2_UPLD_IIC))
-               ;
-
-       /*  Wait until I2C bus transfer is finished or an error occurs. */
-       while ((RR7146(P_I2CCTRL) & (I2C_BUSY | I2C_ERR)) == I2C_BUSY)
-               ;
-
-       /*  Return non-zero if I2C error occurred. */
-       return RR7146(P_I2CCTRL) & I2C_ERR;
-
-}
-
 /*  Private helper function: Write setpoint to an application DAC channel. */
 
 static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)