V4L/DVB (6886): xc5000: Cleanups of types, result codes etc

This translates much of the xceive coding style, adds
some result codes and generally cleans up whitespace
and function arguments.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 156 insertions, 144 deletions

diff --git a/drivers/media/dvb/frontends/xc5000.c b/drivers/media/dvb/frontends/xc5000.c
index 048f9a79b915..9edd07115395 100644
--- a/drivers/media/dvb/frontends/xc5000.c
+++ b/drivers/media/dvb/frontends/xc5000.c
@@ -117,8 +117,8 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
 */
 typedef struct {
         char *Name;
-        unsigned short AudioMode;
-        unsigned short VideoMode;
+        u16 AudioMode;
+        u16 VideoMode;
 } XC_TV_STANDARD;
 
 /* Tuner standards */
@@ -154,29 +154,27 @@ static int  xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
 static int  xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
 static void xc5000_TunerReset(struct dvb_frontend *fe);
 
-int xc_send_i2c_data(struct xc5000_priv *priv,
-        unsigned char *bytes_to_send, int nb_bytes_to_send)
+static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
 {
-        return xc5000_writeregs(priv, bytes_to_send, nb_bytes_to_send)
+        return xc5000_writeregs(priv, buf, len)
                 ? XC_RESULT_I2C_WRITE_FAILURE : XC_RESULT_SUCCESS;
 }
 
-int xc_read_i2c_data(struct xc5000_priv *priv, unsigned char *bytes_received,
-        int nb_bytes_to_receive)
+static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
 {
-        return xc5000_readregs(priv, bytes_received, nb_bytes_to_receive)
+        return xc5000_readregs(priv, buf, len)
                 ? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS;
 }
 
-int xc_reset(struct dvb_frontend *fe)
+static int xc_reset(struct dvb_frontend *fe)
 {
         xc5000_TunerReset(fe);
         return XC_RESULT_SUCCESS;
 }
 
-void xc_wait(int wait_ms)
+static void xc_wait(int wait_ms)
 {
-        msleep( wait_ms );
+        msleep(wait_ms);
 }
 
 static void xc5000_TunerReset(struct dvb_frontend *fe)
@@ -186,7 +184,7 @@ static void xc5000_TunerReset(struct dvb_frontend *fe)
 
         dprintk(1, "%s()\n", __FUNCTION__);
 
-        if(priv->cfg->tuner_reset) {
+        if (priv->cfg->tuner_reset) {
                 ret = priv->cfg->tuner_reset(fe);
                 if (ret)
                         printk(KERN_ERR "xc5000: reset failed\n");
@@ -194,10 +192,9 @@ static void xc5000_TunerReset(struct dvb_frontend *fe)
                 printk(KERN_ERR "xc5000: no tuner reset function, fatal\n");
 }
 
-int xc_write_reg(struct xc5000_priv *priv, unsigned short int regAddr,
-        unsigned short int i2cData)
+static int xc_write_reg(struct xc5000_priv *priv, u16 regAddr, u16 i2cData)
 {
-        unsigned char buf[4];
+        u8 buf[4];
         int WatchDogTimer = 5;
         int result;
 
@@ -206,7 +203,7 @@ int xc_write_reg(struct xc5000_priv *priv, unsigned short int regAddr,
         buf[2] = (i2cData >> 8) & 0xFF;
         buf[3] = i2cData & 0xFF;
         result = xc_send_i2c_data(priv, buf, 4);
-        if ( result == XC_RESULT_SUCCESS) {
+        if (result == XC_RESULT_SUCCESS) {
                 /* wait for busy flag to clear */
                 while ((WatchDogTimer > 0) && (result == XC_RESULT_SUCCESS)) {
                         buf[0] = 0;
@@ -233,43 +230,42 @@ int xc_write_reg(struct xc5000_priv *priv, unsigned short int regAddr,
         return result;
 }
 
-int xc_read_reg(struct xc5000_priv *priv, unsigned short int regAddr,
-        unsigned short int *i2cData)
+static int xc_read_reg(struct xc5000_priv *priv, u16 regAddr, u16 *i2cData)
 {
-        unsigned char buf[2];
+        u8 buf[2];
         int result;
 
         buf[0] = (regAddr >> 8) & 0xFF;
         buf[1] = regAddr & 0xFF;
         result = xc_send_i2c_data(priv, buf, 2);
-        if (result!=XC_RESULT_SUCCESS)
+        if (result != XC_RESULT_SUCCESS)
                 return result;
 
         result = xc_read_i2c_data(priv, buf, 2);
-        if (result!=XC_RESULT_SUCCESS)
+        if (result != XC_RESULT_SUCCESS)
                 return result;
 
         *i2cData = buf[0] * 256 + buf[1];
         return result;
 }
 
-int xc_load_i2c_sequence(struct dvb_frontend *fe, unsigned char i2c_sequence[])
+static int xc_load_i2c_sequence(struct dvb_frontend *fe, u8 i2c_sequence[])
 {
         struct xc5000_priv *priv = fe->tuner_priv;
 
         int i, nbytes_to_send, result;
         unsigned int len, pos, index;
-        unsigned char buf[XC_MAX_I2C_WRITE_LENGTH];
+        u8 buf[XC_MAX_I2C_WRITE_LENGTH];
 
         index=0;
         while ((i2c_sequence[index]!=0xFF) || (i2c_sequence[index+1]!=0xFF)) {
 
                 len = i2c_sequence[index]* 256 + i2c_sequence[index+1];
-                if (len==0x0000) {
+                if (len == 0x0000) {
                         /* RESET command */
                         result = xc_reset(fe);
                         index += 2;
-                        if (result!=XC_RESULT_SUCCESS)
+                        if (result != XC_RESULT_SUCCESS)
                                 return result;
                 } else if (len & 0x8000) {
                         /* WAIT command */
@@ -294,7 +290,7 @@ int xc_load_i2c_sequence(struct dvb_frontend *fe, unsigned char i2c_sequence[])
                                 }
                                 result = xc_send_i2c_data(priv, buf, nbytes_to_send);
 
-                                if (result!=XC_RESULT_SUCCESS)
+                                if (result != XC_RESULT_SUCCESS)
                                         return result;
 
                                 pos += nbytes_to_send - 2;
@@ -305,14 +301,14 @@ int xc_load_i2c_sequence(struct dvb_frontend *fe, unsigned char i2c_sequence[])
         return XC_RESULT_SUCCESS;
 }
 
-int xc_initialize(struct xc5000_priv *priv)
+static int xc_initialize(struct xc5000_priv *priv)
 {
         dprintk(1, "%s()\n", __FUNCTION__);
         return xc_write_reg(priv, XREG_INIT, 0);
 }
 
-int xc_SetTVStandard(struct xc5000_priv *priv, unsigned short int VideoMode,
-        unsigned short int AudioMode)
+static int xc_SetTVStandard(struct xc5000_priv *priv,
+        u16 VideoMode, u16 AudioMode)
 {
         int ret;
         dprintk(1, "%s(%d,%d)\n", __FUNCTION__, VideoMode, AudioMode);
@@ -327,17 +323,17 @@ int xc_SetTVStandard(struct xc5000_priv *priv, unsigned short int VideoMode,
         return ret;
 }
 
-int xc_shutdown(struct xc5000_priv *priv)
+static int xc_shutdown(struct xc5000_priv *priv)
 {
         return xc_write_reg(priv, XREG_POWER_DOWN, 0);
 }
 
-int xc_SetSignalSource(struct xc5000_priv *priv, unsigned short int rf_mode)
+static int xc_SetSignalSource(struct xc5000_priv *priv, u16 rf_mode)
 {
         dprintk(1, "%s(%d) Source = %s\n", __FUNCTION__, rf_mode,
                 rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
 
-        if( (rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE) )
+        if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE))
         {
                 rf_mode = XC_RF_MODE_CABLE;
                 printk(KERN_ERR
@@ -347,52 +343,43 @@ int xc_SetSignalSource(struct xc5000_priv *priv, unsigned short int rf_mode)
         return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
 }
 
-int xc_set_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz)
-{
-        unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625);
+static const struct dvb_tuner_ops xc5000_tuner_ops;
 
-        if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000))
-                return XC_RESULT_OUT_OF_RANGE;
+static int xc_set_RF_frequency(struct xc5000_priv *priv, u32 freq_hz)
+{
+        u16 freq_code;
 
-        return xc_write_reg(priv, XREG_RF_FREQ ,frequency_code);
-}
+        dprintk(1, "%s(%d)\n", __FUNCTION__, freq_hz);
 
-int xc_FineTune_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz)
-{
-        unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625);
-        if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000))
+        if ((freq_hz > xc5000_tuner_ops.info.frequency_max) ||
+                (freq_hz < xc5000_tuner_ops.info.frequency_min))
                 return XC_RESULT_OUT_OF_RANGE;
 
-        return xc_write_reg(priv, XREG_FINERFFREQ ,frequency_code);
+        freq_code = (u16)(freq_hz / 15625);
+
+        return xc_write_reg(priv, XREG_RF_FREQ, freq_code);
 }
 
-int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_hz)
-{
-        u32 freq_code = (freq_hz * 1024)/1000000;
-        dprintk(1, "%s(%d)\n", __FUNCTION__, freq_hz);
 
-        printk(KERN_ERR "FIXME - Hardcoded IF, FIXME\n");
-        freq_code = 0x1585;
+static int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_khz)
+{
+        u32 freq_code = (freq_khz * 1024)/1000;
+        dprintk(1, "%s(freq_khz = %d) freq_code = 0x%x\n",
+                __FUNCTION__, freq_khz, freq_code);
 
-        return xc_write_reg(priv, XREG_IF_OUT ,freq_code);
+        return xc_write_reg(priv, XREG_IF_OUT, freq_code);
 }
 
-int xc_set_Xtal_frequency(struct xc5000_priv *priv, long xtalFreqInKHz)
-{
-        unsigned int xtalRatio = (32000 * 0x8000)/xtalFreqInKHz;
-        return xc_write_reg(priv, XREG_XTALFREQ ,xtalRatio);
-}
 
-int xc_get_ADC_Envelope(struct xc5000_priv *priv,
-        unsigned short int *adc_envelope)
+static int xc_get_ADC_Envelope(struct xc5000_priv *priv, u16 *adc_envelope)
 {
         return xc_read_reg(priv, XREG_ADC_ENV, adc_envelope);
 }
 
-int xc_get_frequency_error(struct xc5000_priv *priv, u32 *frequency_error_hz)
+static int xc_get_frequency_error(struct xc5000_priv *priv, u32 *freq_error_hz)
 {
         int result;
-        unsigned short int regData;
+        u16 regData;
         u32 tmp;
 
         result = xc_read_reg(priv, XREG_FREQ_ERROR, &regData);
@@ -400,45 +387,37 @@ int xc_get_frequency_error(struct xc5000_priv *priv, u32 *frequency_error_hz)
                 return result;
 
         tmp = (u32)regData;
-        (*frequency_error_hz) = (tmp * 15625) / 1000;
+        (*freq_error_hz) = (tmp * 15625) / 1000;
         return result;
 }
 
-int xc_get_lock_status(struct xc5000_priv *priv,
-        unsigned short int *lock_status)
+static int xc_get_lock_status(struct xc5000_priv *priv, u16 *lock_status)
 {
         return xc_read_reg(priv, XREG_LOCK, lock_status);
 }
 
-int xc_get_version(struct xc5000_priv *priv,
-        unsigned char* hw_majorversion,
-        unsigned char* hw_minorversion,
-        unsigned char* fw_majorversion,
-        unsigned char* fw_minorversion)
+static int xc_get_version(struct xc5000_priv *priv,
+        u8 *hw_majorversion, u8 *hw_minorversion,
+        u8 *fw_majorversion, u8 *fw_minorversion)
 {
-        unsigned short int data;
+        u16 data;
         int result;
 
         result = xc_read_reg(priv, XREG_VERSION, &data);
         if (result)
                 return result;
 
-        (*hw_majorversion) = (data>>12) & 0x0F;
-        (*hw_minorversion) = (data>>8) & 0x0F;
-        (*fw_majorversion) = (data>>4) & 0x0F;
-        (*fw_minorversion) = (data) & 0x0F;
+        (*hw_majorversion) = (data >> 12) & 0x0F;
+        (*hw_minorversion) = (data >>  8) & 0x0F;
+        (*fw_majorversion) = (data >>  4) & 0x0F;
+        (*fw_minorversion) = data & 0x0F;
 
         return 0;
 }
 
-int xc_get_product_id(struct xc5000_priv *priv, unsigned short int *product_id)
-{
-        return xc_read_reg(priv, XREG_PRODUCT_ID, product_id);
-}
-
-int xc_get_hsync_freq(struct xc5000_priv *priv, int *hsync_freq_hz)
+static int xc_get_hsync_freq(struct xc5000_priv *priv, u32 *hsync_freq_hz)
 {
-        unsigned short int regData;
+        u16 regData;
         int result;
 
         result = xc_read_reg(priv, XREG_HSYNC_FREQ, &regData);
@@ -449,26 +428,24 @@ int xc_get_hsync_freq(struct xc5000_priv *priv, int *hsync_freq_hz)
         return result;
 }
 
-int xc_get_frame_lines(struct xc5000_priv *priv,
-        unsigned short int *frame_lines)
+static int xc_get_frame_lines(struct xc5000_priv *priv, u16 *frame_lines)
 {
         return xc_read_reg(priv, XREG_FRAME_LINES, frame_lines);
 }
 
-int xc_get_quality(struct xc5000_priv *priv, unsigned short int *quality)
+static int xc_get_quality(struct xc5000_priv *priv, u16 *quality)
 {
         return xc_read_reg(priv, XREG_QUALITY, quality);
 }
 
-unsigned short int WaitForLock(struct xc5000_priv *priv)
+static u16 WaitForLock(struct xc5000_priv *priv)
 {
-        unsigned short int lockState = 0;
+        u16 lockState = 0;
         int watchDogCount = 40;
-        while ((lockState == 0) && (watchDogCount > 0))
-        {
+
+        while ((lockState == 0) && (watchDogCount > 0)) {
                 xc_get_lock_status(priv, &lockState);
-                if (lockState != 1)
-                {
+                if (lockState != 1) {
                         xc_wait(5);
                         watchDogCount--;
                 }
@@ -476,16 +453,16 @@ unsigned short int WaitForLock(struct xc5000_priv *priv)
         return lockState;
 }
 
-int xc_tune_channel(struct xc5000_priv *priv, u32 freq)
+static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz)
 {
         int found = 0;
 
-        dprintk(1, "%s(%d)\n", __FUNCTION__, freq);
+        dprintk(1, "%s(%d)\n", __FUNCTION__, freq_hz);
 
-        if (xc_set_RF_frequency(priv, freq) != XC_RESULT_SUCCESS)
+        if (xc_set_RF_frequency(priv, freq_hz) != XC_RESULT_SUCCESS)
                 return 0;
 
-        if (WaitForLock(priv)== 1)
+        if (WaitForLock(priv) == 1)
                 found = 1;
 
         return found;
@@ -542,15 +519,15 @@ static int xc5000_fwupload(struct dvb_frontend* fe)
         const struct firmware *fw;
         int ret;
 
-        /* request the firmware, this will block until someone uploads it */
-        printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n",
-                XC5000_DEFAULT_FIRMWARE);
-
-        if(!priv->cfg->request_firmware) {
+        if (!priv->cfg->request_firmware) {
                 printk(KERN_ERR "xc5000: no firmware callback, fatal\n");
                 return -EIO;
         }
 
+        /* request the firmware, this will block and timeout */
+        printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n",
+                XC5000_DEFAULT_FIRMWARE);
+
         ret = priv->cfg->request_firmware(fe, &fw, XC5000_DEFAULT_FIRMWARE);
         if (ret) {
                 printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
@@ -560,7 +537,7 @@ static int xc5000_fwupload(struct dvb_frontend* fe)
                 ret = XC_RESULT_SUCCESS;
         }
 
-        if(fw->size != XC5000_DEFAULT_FIRMWARE_SIZE) {
+        if (fw->size != XC5000_DEFAULT_FIRMWARE_SIZE) {
                 printk(KERN_ERR "xc5000: firmware incorrect size\n");
                 ret = XC_RESULT_RESET_FAILURE;
         } else {
@@ -572,89 +549,110 @@ static int xc5000_fwupload(struct dvb_frontend* fe)
         return ret;
 }
 
-void xc_debug_dump(struct xc5000_priv *priv)
+static void xc_debug_dump(struct xc5000_priv *priv)
 {
-        unsigned short  adc_envelope;
-        u32             frequency_error_hz;
-        unsigned short  lock_status;
-        unsigned char   hw_majorversion, hw_minorversion = 0;
-        unsigned char   fw_majorversion, fw_minorversion = 0;
-        int             hsync_freq_hz;
-        unsigned short  frame_lines;
-        unsigned short  quality;
+        u16 adc_envelope;
+        u32 freq_error_hz = 0;
+        u16 lock_status;
+        u32 hsync_freq_hz = 0;
+        u16 frame_lines;
+        u16 quality;
+        u8 hw_majorversion = 0, hw_minorversion = 0;
+        u8 fw_majorversion = 0, fw_minorversion = 0;
 
         /* Wait for stats to stabilize.
          * Frame Lines needs two frame times after initial lock
          * before it is valid.
          */
-        xc_wait( 100 );
+        xc_wait(100);
 
-        xc_get_ADC_Envelope(priv,  &adc_envelope );
-        dprintk(1, "*** ADC envelope (0-1023) = %u\n", adc_envelope);
+        xc_get_ADC_Envelope(priv,  &adc_envelope);
+        dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
 
-        xc_get_frequency_error(priv,  &frequency_error_hz );
-        dprintk(1, "*** Frequency error = %d Hz\n", frequency_error_hz);
+        xc_get_frequency_error(priv, &freq_error_hz);
+        dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
 
-        xc_get_lock_status(priv,  &lock_status );
-        dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %u\n",
+        xc_get_lock_status(priv,  &lock_status);
+        dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
                 lock_status);
 
         xc_get_version(priv,  &hw_majorversion, &hw_minorversion,
-                &fw_majorversion, &fw_minorversion );
+                &fw_majorversion, &fw_minorversion);
         dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
                 hw_majorversion, hw_minorversion,
                 fw_majorversion, fw_minorversion);
 
-        xc_get_hsync_freq(priv,  &hsync_freq_hz );
-        dprintk(1, "*** Horizontal sync frequency = %u Hz\n", hsync_freq_hz);
+        xc_get_hsync_freq(priv,  &hsync_freq_hz);
+        dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz);
 
-        xc_get_frame_lines(priv,  &frame_lines );
-        dprintk(1, "*** Frame lines = %u\n", frame_lines);
+        xc_get_frame_lines(priv,  &frame_lines);
+        dprintk(1, "*** Frame lines = %d\n", frame_lines);
 
-        xc_get_quality(priv,  &quality );
-        dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %u\n", quality);
+        xc_get_quality(priv,  &quality);
+        dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
 }
 
 static int xc5000_set_params(struct dvb_frontend *fe,
         struct dvb_frontend_parameters *params)
 {
         struct xc5000_priv *priv = fe->tuner_priv;
+        int ret;
 
-        dprintk(1, "%s() frequency=%d\n", __FUNCTION__, params->frequency);
+        dprintk(1, "%s() frequency=%d (Hz)\n", __FUNCTION__, params->frequency);
 
-        priv->frequency = params->frequency - 1750000;
-        priv->bandwidth = 6;
-        priv->video_standard = DTV6;
 
         switch(params->u.vsb.modulation) {
         case VSB_8:
         case VSB_16:
                 dprintk(1, "%s() VSB modulation\n", __FUNCTION__);
                 priv->rf_mode = XC_RF_MODE_AIR;
+                priv->freq_hz = params->frequency - 1750000;
+                priv->bandwidth = BANDWIDTH_6_MHZ;
+                priv->video_standard = DTV6;
                 break;
         case QAM_64:
         case QAM_256:
         case QAM_AUTO:
                 dprintk(1, "%s() QAM modulation\n", __FUNCTION__);
                 priv->rf_mode = XC_RF_MODE_CABLE;
+                priv->freq_hz = params->frequency - 1750000;
+                priv->bandwidth = BANDWIDTH_6_MHZ;
+                priv->video_standard = DTV6;
                 break;
         default:
                 return -EINVAL;
         }
 
         dprintk(1, "%s() frequency=%d (compensated)\n",
-                __FUNCTION__, priv->frequency);
+                __FUNCTION__, priv->freq_hz);
 
-        /* FIXME: check result codes */
-        xc_SetSignalSource(priv, priv->rf_mode);
+        ret = xc_SetSignalSource(priv, priv->rf_mode);
+        if (ret != XC_RESULT_SUCCESS) {
+                printk(KERN_ERR
+                        "xc5000: xc_SetSignalSource(%d) failed\n",
+                        priv->rf_mode);
+                return -EREMOTEIO;
+        }
 
-        xc_SetTVStandard(priv,
+        ret = xc_SetTVStandard(priv,
                 XC5000_Standard[priv->video_standard].VideoMode,
                 XC5000_Standard[priv->video_standard].AudioMode);
+        if (ret != XC_RESULT_SUCCESS) {
+                printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n");
+                return -EREMOTEIO;
+        }
+
+        ret = xc_set_IF_frequency(priv, priv->cfg->if_khz);
+        if (ret != XC_RESULT_SUCCESS) {
+                printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n",
+                        priv->cfg->if_khz);
+                return -EIO;
+        }
+
+        xc_tune_channel(priv, priv->freq_hz);
 
-        xc_set_IF_frequency(priv, priv->cfg->if_frequency);
-        xc_tune_channel(priv, priv->frequency);
-        xc_debug_dump(priv);
+        if (debug)
+                xc_debug_dump(priv);
 
         return 0;
 }
@@ -663,7 +661,7 @@ static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
 {
         struct xc5000_priv *priv = fe->tuner_priv;
         dprintk(1, "%s()\n", __FUNCTION__);
-        *freq = priv->frequency;
+        *freq = priv->freq_hz;
         return 0;
 }
 
@@ -678,7 +676,7 @@ static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
 static int xc5000_get_status(struct dvb_frontend *fe, u32 *status)
 {
         struct xc5000_priv *priv = fe->tuner_priv;
-        unsigned short int lock_status = 0;
+        u16 lock_status = 0;
 
         xc_get_lock_status(priv, &lock_status);
 
@@ -689,15 +687,15 @@ static int xc5000_get_status(struct dvb_frontend *fe, u32 *status)
         return 0;
 }
 
-int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
+static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
 {
         struct xc5000_priv *priv = fe->tuner_priv;
         int ret;
 
-        if(priv->fwloaded == 0) {
+        if (priv->fwloaded == 0) {
                 ret = xc5000_fwupload(fe);
-                if( ret != XC_RESULT_SUCCESS )
-                        return -EREMOTEIO;
+                if (ret != XC_RESULT_SUCCESS)
+                        return ret;
 
                 priv->fwloaded = 1;
         }
@@ -718,13 +716,26 @@ int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
         return ret;
 }
 
+static int xc5000_sleep(struct dvb_frontend *fe)
+{
+        struct xc5000_priv *priv = fe->tuner_priv;
+        dprintk(1, "%s()\n", __FUNCTION__);
+
+        return xc_shutdown(priv);
+}
+
 static int xc5000_init(struct dvb_frontend *fe)
 {
         struct xc5000_priv *priv = fe->tuner_priv;
         dprintk(1, "%s()\n", __FUNCTION__);
 
-        xc_load_fw_and_init_tuner(fe);
-        xc_debug_dump(priv);
+        if (xc_load_fw_and_init_tuner(fe) != XC_RESULT_SUCCESS) {
+                printk(KERN_ERR "xc5000: Unable to initialise tuner\n");
+                return -EREMOTEIO;
+        }
+
+        if (debug)
+                xc_debug_dump(priv);
 
         return 0;
 }
@@ -747,6 +758,7 @@ static const struct dvb_tuner_ops xc5000_tuner_ops = {
 
         .release       = xc5000_release,
         .init          = xc5000_init,
+        .sleep         = xc5000_sleep,
 
         .set_params    = xc5000_set_params,
         .get_frequency = xc5000_get_frequency,
@@ -768,7 +780,7 @@ struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
                 return NULL;
 
         priv->cfg = cfg;
-        priv->bandwidth = 6000000; /* 6MHz */
+        priv->bandwidth = BANDWIDTH_6_MHZ;
         priv->i2c = i2c;
         priv->fwloaded = 0;
 
@@ -777,7 +789,7 @@ struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
                 return NULL;
         }
 
-        if ( (id != 0x2000) && (id != 0x1388) ) {
+        if ((id != 0x2000) && (id != 0x1388)) {
                 printk(KERN_ERR
                         "xc5000: Device not found at addr 0x%02x (0x%x)\n",
                         cfg->i2c_address, id);
@@ -798,5 +810,5 @@ struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
 EXPORT_SYMBOL(xc5000_attach);
 
 MODULE_AUTHOR("Steven Toth");
-MODULE_DESCRIPTION("Xceive XC5000 silicon tuner driver");
+MODULE_DESCRIPTION("Xceive xc5000 silicon tuner driver");
 MODULE_LICENSE("GPL");