V4L/DVB (3271): more cleanups, simplify volume/balance/bass/treble handling
authorHans Verkuil <hverkuil@xs4all.nl>
Mon, 9 Jan 2006 17:32:39 +0000 (15:32 -0200)
committerMauro Carvalho Chehab <mchehab@brturbo.com.br>
Mon, 9 Jan 2006 17:32:39 +0000 (15:32 -0200)
- Continue cleanup effort:
- more cosmetic changes
- combine volume, balance, bass and treble into one audio
function. Revert old 2.4 code that crept in.
- print internal ioctls using new debug function.
- marked all msp3400c (aka manual) functions as such.
- removed some unused data structures.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
drivers/media/video/msp3400.c

index 39058d3b2e616ade1649efb27406cca233778a25..627c3110d3e32e4178e5e93a2be2fe0b21df8950 100644 (file)
@@ -158,8 +158,8 @@ static const int bl_dfp[] = {
        0x0b, 0x0d, 0x0e, 0x10
 };
 
-#define HAVE_NICAM(state)   (((state->rev2>>8) & 0xff) != 00)
-#define HAVE_RADIO(state)   ((state->rev1      & 0x0f) >= 'G'-'@')
+#define HAVE_NICAM(state)   (((state->rev2 >> 8) & 0xff) != 0)
+#define HAVE_RADIO(state)   ((state->rev1 & 0x0f) >= 'G'-'@')
 
 struct msp_state {
        int rev1, rev2;
@@ -181,7 +181,7 @@ struct msp_state {
        int rxsubchans;
 
        int muted;
-       int left, right;        /* volume */
+       int volume, balance;
        int bass, treble;
 
        /* shadow register set */
@@ -217,9 +217,9 @@ static int msp_reset(struct i2c_client *client)
        };
 
        msp_dbg3("msp_reset\n");
-       if (1 != i2c_transfer(client->adapter, &reset[0], 1) ||
-           1 != i2c_transfer(client->adapter, &reset[1], 1) ||
-           2 != i2c_transfer(client->adapter, test, 2)) {
+       if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
+           i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
+           i2c_transfer(client->adapter, test, 2) != 2) {
                msp_err("chip reset failed\n");
                return -1;
        }
@@ -241,14 +241,14 @@ static int msp_read(struct i2c_client *client, int dev, int addr)
        write[2] = addr & 0xff;
 
        for (err = 0; err < 3; err++) {
-               if (2 == i2c_transfer(client->adapter, msgs, 2))
+               if (i2c_transfer(client->adapter, msgs, 2) == 2)
                        break;
                msp_warn("I/O error #%d (read 0x%02x/0x%02x)\n", err,
                       dev, addr);
                current->state = TASK_INTERRUPTIBLE;
                schedule_timeout(msecs_to_jiffies(10));
        }
-       if (3 == err) {
+       if (err == 3) {
                msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
                msp_reset(client);
                return -1;
@@ -281,14 +281,14 @@ static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 
        msp_dbg3("msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
        for (err = 0; err < 3; err++) {
-               if (5 == i2c_master_send(client, buffer, 5))
+               if (i2c_master_send(client, buffer, 5) == 5)
                        break;
                msp_warn("I/O error #%d (write 0x%02x/0x%02x)\n", err,
                       dev, addr);
                current->state = TASK_INTERRUPTIBLE;
                schedule_timeout(msecs_to_jiffies(10));
        }
-       if (3 == err) {
+       if (err == 3) {
                msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
                msp_reset(client);
                return -1;
@@ -306,6 +306,70 @@ static inline int msp_write_dsp(struct i2c_client *client, int addr, int val)
        return msp_write(client, I2C_MSP_DSP, addr, val);
 }
 
+/* ----------------------------------------------------------------------- *
+ * bits  9  8  5 - SCART DSP input Select:
+ *       0  0  0 - SCART 1 to DSP input (reset position)
+ *       0  1  0 - MONO to DSP input
+ *       1  0  0 - SCART 2 to DSP input
+ *       1  1  1 - Mute DSP input
+ *
+ * bits 11 10  6 - SCART 1 Output Select:
+ *       0  0  0 - undefined (reset position)
+ *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
+ *       1  0  0 - MONO input to SCART 1 Output
+ *       1  1  0 - SCART 1 DA to SCART 1 Output
+ *       0  0  1 - SCART 2 DA to SCART 1 Output
+ *       0  1  1 - SCART 1 Input to SCART 1 Output
+ *       1  1  1 - Mute SCART 1 Output
+ *
+ * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
+ *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
+ *       0  1  0 - SCART 1 Input to SCART 2 Output
+ *       1  0  0 - MONO input to SCART 2 Output
+ *       0  0  1 - SCART 2 DA to SCART 2 Output
+ *       0  1  1 - SCART 2 Input to SCART 2 Output
+ *       1  1  0 - Mute SCART 2 Output
+ *
+ * Bits 4 to 0 should be zero.
+ * ----------------------------------------------------------------------- */
+
+static int scarts[3][9] = {
+       /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
+       /* SCART DSP Input select */
+       { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
+       /* SCART1 Output select */
+       { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
+       /* SCART2 Output select */
+       { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
+};
+
+static char *scart_names[] = {
+       "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
+};
+
+static void msp_set_scart(struct i2c_client *client, int in, int out)
+{
+       struct msp_state *state = i2c_get_clientdata(client);
+
+       state->in_scart=in;
+
+       if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
+               if (-1 == scarts[out][in])
+                       return;
+
+               state->acb &= ~scarts[out][SCART_MASK];
+               state->acb |=  scarts[out][in];
+       } else
+               state->acb = 0xf60; /* Mute Input and SCART 1 Output */
+
+       msp_dbg1("scart switch: %s => %d (ACB=0x%04x)\n",
+                                               scart_names[in], out, state->acb);
+       msp_write_dsp(client, 0x13, state->acb);
+
+       /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
+       msp_write_dem(client, 0x40, state->i2s_mode);
+}
+
 /* ------------------------------------------------------------------------ */
 
 /* This macro is allowed for *constants* only, gcc must calculate it
@@ -322,7 +386,7 @@ static inline int msp_write_dsp(struct i2c_client *client, int addr, int val)
 #define MSP_MODE_BTSC        8
 #define MSP_MODE_EXTERN      9
 
-static struct MSP_INIT_DATA_DEM {
+static struct msp3400c_init_data_dem {
        int fir1[6];
        int fir2[6];
        int cdo1;
@@ -331,7 +395,7 @@ static struct MSP_INIT_DATA_DEM {
        int mode_reg;
        int dfp_src;
        int dfp_matrix;
-} msp_init_data[] = {
+} msp3400c_init_data[] = {
        {       /* AM (for carrier detect / msp3400) */
                {75, 19, 36, 35, 39, 40},
                {75, 19, 36, 35, 39, 40},
@@ -375,12 +439,12 @@ static struct MSP_INIT_DATA_DEM {
        },
 };
 
-struct CARRIER_DETECT {
+struct msp3400c_carrier_detect {
        int   cdo;
        char *name;
 };
 
-static struct CARRIER_DETECT carrier_detect_main[] = {
+static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
        /* main carrier */
        { MSP_CARRIER(4.5),        "4.5   NTSC"                   },
        { MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
@@ -388,13 +452,13 @@ static struct CARRIER_DETECT carrier_detect_main[] = {
        { MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
 };
 
-static struct CARRIER_DETECT carrier_detect_55[] = {
+static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
        /* PAL B/G */
        { MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
        { MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
 };
 
-static struct CARRIER_DETECT carrier_detect_65[] = {
+static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
        /* PAL SAT / SECAM */
        { MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
        { MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
@@ -404,72 +468,6 @@ static struct CARRIER_DETECT carrier_detect_65[] = {
        { MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
 };
 
-#define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
-
-/* ----------------------------------------------------------------------- *
- * bits  9  8  5 - SCART DSP input Select:
- *       0  0  0 - SCART 1 to DSP input (reset position)
- *       0  1  0 - MONO to DSP input
- *       1  0  0 - SCART 2 to DSP input
- *       1  1  1 - Mute DSP input
- *
- * bits 11 10  6 - SCART 1 Output Select:
- *       0  0  0 - undefined (reset position)
- *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
- *       1  0  0 - MONO input to SCART 1 Output
- *       1  1  0 - SCART 1 DA to SCART 1 Output
- *       0  0  1 - SCART 2 DA to SCART 1 Output
- *       0  1  1 - SCART 1 Input to SCART 1 Output
- *       1  1  1 - Mute SCART 1 Output
- *
- * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
- *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
- *       0  1  0 - SCART 1 Input to SCART 2 Output
- *       1  0  0 - MONO input to SCART 2 Output
- *       0  0  1 - SCART 2 DA to SCART 2 Output
- *       0  1  1 - SCART 2 Input to SCART 2 Output
- *       1  1  0 - Mute SCART 2 Output
- *
- * Bits 4 to 0 should be zero.
- * ----------------------------------------------------------------------- */
-
-static int scarts[3][9] = {
-       /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
-       /* SCART DSP Input select */
-       { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
-       /* SCART1 Output select */
-       { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
-       /* SCART2 Output select */
-       { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
-};
-
-static char *scart_names[] = {
-       "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
-};
-
-static void msp_set_scart(struct i2c_client *client, int in, int out)
-{
-       struct msp_state *state = i2c_get_clientdata(client);
-
-       state->in_scart=in;
-
-       if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
-               if (-1 == scarts[out][in])
-                       return;
-
-               state->acb &= ~scarts[out][SCART_MASK];
-               state->acb |=  scarts[out][in];
-       } else
-               state->acb = 0xf60; /* Mute Input and SCART 1 Output */
-
-       msp_dbg1("scart switch: %s => %d (ACB=0x%04x)\n",
-                                               scart_names[in], out, state->acb);
-       msp_write_dsp(client, 0x13, state->acb);
-
-       /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
-       msp_write_dem(client, 0x40, state->i2s_mode);
-}
-
 /* ------------------------------------------------------------------------ */
 
 static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
@@ -481,42 +479,35 @@ static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
        msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
 }
 
-static void msp_set_volume(struct i2c_client *client,
-                              int muted, int left, int right)
- {
-       int vol = 0, val = 0, balance = 0;
-
-       if (!muted) {
-               vol = (left > right) ? left : right;
-               val = (vol * 0x7f / 65535) << 8;
-       }
-       if (vol > 0) {
-               balance = ((right - left) * 127) / vol;
-       }
-
-       msp_dbg1("setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
-               muted ? "on" : "off", left, right, val >> 8, balance);
-       msp_write_dsp(client, 0x0000, val); /* loudspeaker */
-       msp_write_dsp(client, 0x0006, val); /* headphones  */
-       msp_write_dsp(client, 0x0007,
-                                       muted ? 0x1 : (val | 0x1));
-       msp_write_dsp(client, 0x0001, balance << 8);
+static void msp_set_mute(struct i2c_client *client)
+{
+       msp_dbg1("mute audio\n");
+       msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
+       msp_write_dsp(client, 0x0006, 0); /* headphones */
 }
 
-static void msp_set_bass(struct i2c_client *client, int bass)
+static void msp_set_audio(struct i2c_client *client)
 {
-       int val = ((bass-32768) * 0x60 / 65535) << 8;
+       struct msp_state *state = i2c_get_clientdata(client);
+       int val = 0, bal = 0, bass, treble;
 
-       msp_dbg1("setbass: %d 0x%02x\n", bass, val >> 8);
-       msp_write_dsp(client, 0x0002, val); /* loudspeaker */
-}
+       if (!state->muted)
+               val = (state->volume * 0x7f / 65535) << 8;
+       if (val)
+               bal = (state->balance / 256) - 128;
+       bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
+       treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 
-static void msp_set_treble(struct i2c_client *client, int treble)
-{
-       int val = ((treble-32768) * 0x60 / 65535) << 8;
+       msp_dbg1("mute=%s volume=%d balance=%d bass=%d treble=%d\n",
+               state->muted ? "on" : "off", state->volume, state->balance,
+               state->bass, state->treble);
 
-       msp_dbg1("settreble: %d 0x%02x\n",treble, val>>8);
-       msp_write_dsp(client, 0x0003, val); /* loudspeaker */
+       msp_write_dsp(client, 0x0000, val); /* loudspeaker */
+       msp_write_dsp(client, 0x0006, val); /* headphones */
+       msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
+       msp_write_dsp(client, 0x0001, bal << 8);
+       msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
+       msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
 }
 
 static void msp3400c_setmode(struct i2c_client *client, int type)
@@ -530,24 +521,24 @@ static void msp3400c_setmode(struct i2c_client *client, int type)
        state->rxsubchans = V4L2_TUNER_SUB_MONO;
 
        msp_write_dem(client, 0x00bb,          /* ad_cv */
-                      msp_init_data[type].ad_cv);
+                      msp3400c_init_data[type].ad_cv);
 
        for (i = 5; i >= 0; i--)                                   /* fir 1 */
                msp_write_dem(client, 0x0001,
-                              msp_init_data[type].fir1[i]);
+                              msp3400c_init_data[type].fir1[i]);
 
        msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
        msp_write_dem(client, 0x0005, 0x0040);
        msp_write_dem(client, 0x0005, 0x0000);
        for (i = 5; i >= 0; i--)
                msp_write_dem(client, 0x0005,
-                              msp_init_data[type].fir2[i]);
+                              msp3400c_init_data[type].fir2[i]);
 
        msp_write_dem(client, 0x0083,     /* MODE_REG */
-                      msp_init_data[type].mode_reg);
+                      msp3400c_init_data[type].mode_reg);
 
-       msp3400c_setcarrier(client, msp_init_data[type].cdo1,
-                           msp_init_data[type].cdo2);
+       msp3400c_setcarrier(client, msp3400c_init_data[type].cdo1,
+                           msp3400c_init_data[type].cdo2);
 
        msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
 
@@ -557,19 +548,19 @@ static void msp3400c_setmode(struct i2c_client *client, int type)
                msp_write_dsp(client, 0x0009,
                               0x0620); /* I2S2 */
                msp_write_dsp(client, 0x000b,
-                              msp_init_data[type].dfp_src);
+                              msp3400c_init_data[type].dfp_src);
        } else {
                msp_write_dsp(client, 0x0008,
-                              msp_init_data[type].dfp_src);
+                              msp3400c_init_data[type].dfp_src);
                msp_write_dsp(client, 0x0009,
-                              msp_init_data[type].dfp_src);
+                              msp3400c_init_data[type].dfp_src);
                msp_write_dsp(client, 0x000b,
-                              msp_init_data[type].dfp_src);
+                              msp3400c_init_data[type].dfp_src);
        }
        msp_write_dsp(client, 0x000a,
-                      msp_init_data[type].dfp_src);
+                      msp3400c_init_data[type].dfp_src);
        msp_write_dsp(client, 0x000e,
-                      msp_init_data[type].dfp_matrix);
+                      msp3400c_init_data[type].dfp_matrix);
 
        if (HAVE_NICAM(state)) {
                /* nicam prescale */
@@ -701,8 +692,7 @@ static void msp3400c_setstereo(struct i2c_client *client, int mode)
        }
 }
 
-static void
-msp3400c_print_mode(struct i2c_client *client)
+static void msp3400c_print_mode(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
 
@@ -739,7 +729,7 @@ static void msp3400c_restore_dfp(struct i2c_client *client)
 }
 
 /* if the dfp_regs is set, set what's in there. Otherwise, set the default value */
-static int msp_write_dfp_with_default(struct i2c_client *client,
+static int msp34xxg_write_dfp_with_default(struct i2c_client *client,
                                        int addr, int default_value)
 {
        struct msp_state *state = i2c_get_clientdata(client);
@@ -751,19 +741,6 @@ static int msp_write_dfp_with_default(struct i2c_client *client,
 
 /* ----------------------------------------------------------------------- */
 
-struct REGISTER_DUMP {
-       int   addr;
-       char *name;
-};
-
-struct REGISTER_DUMP d1[] = {
-       {0x007e, "autodetect"},
-       {0x0023, "C_AD_BITS "},
-       {0x0038, "ADD_BITS  "},
-       {0x003e, "CIB_BITS  "},
-       {0x0057, "ERROR_RATE"},
-};
-
 static int autodetect_stereo(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
@@ -899,7 +876,7 @@ static int msp3400c_thread(void *data)
 {
        struct i2c_client *client = data;
        struct msp_state *state = i2c_get_clientdata(client);
-       struct CARRIER_DETECT *cd;
+       struct msp3400c_carrier_detect *cd;
        int count, max1,max2,val1,val2, val,this;
 
 
@@ -919,12 +896,12 @@ static int msp3400c_thread(void *data)
                    MSP_MODE_EXTERN  == state->mode) {
                        /* no carrier scan, just unmute */
                        msp_info("thread: no carrier scan\n");
-                       msp_set_volume(client, state->muted, state->left, state->right);
+                       msp_set_audio(client);
                        continue;
                }
 
                /* mute */
-               msp_set_volume(client, state->muted, 0, 0);
+               msp_set_mute(client);
                msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
                val1 = val2 = 0;
                max1 = max2 = -1;
@@ -935,8 +912,8 @@ static int msp3400c_thread(void *data)
                        goto restart;
 
                /* carrier detect pass #1 -- main carrier */
-               cd = carrier_detect_main;
-               count = CARRIER_COUNT(carrier_detect_main);
+               cd = msp3400c_carrier_detect_main;
+               count = ARRAY_SIZE(msp3400c_carrier_detect_main);
 
                if (amsound && (state->norm == VIDEO_MODE_SECAM)) {
                        /* autodetect doesn't work well with AM ... */
@@ -960,12 +937,12 @@ static int msp3400c_thread(void *data)
                /* carrier detect pass #2 -- second (stereo) carrier */
                switch (max1) {
                case 1: /* 5.5 */
-                       cd = carrier_detect_55;
-                       count = CARRIER_COUNT(carrier_detect_55);
+                       cd = msp3400c_carrier_detect_55;
+                       count = ARRAY_SIZE(msp3400c_carrier_detect_55);
                        break;
                case 3: /* 6.5 */
-                       cd = carrier_detect_65;
-                       count = CARRIER_COUNT(carrier_detect_65);
+                       cd = msp3400c_carrier_detect_65;
+                       count = ARRAY_SIZE(msp3400c_carrier_detect_65);
                        break;
                case 0: /* 4.5 */
                case 2: /* 6.0 */
@@ -994,19 +971,19 @@ static int msp3400c_thread(void *data)
                }
 
                /* program the msp3400 according to the results */
-               state->main   = carrier_detect_main[max1].cdo;
+               state->main   = msp3400c_carrier_detect_main[max1].cdo;
                switch (max1) {
                case 1: /* 5.5 */
                        if (max2 == 0) {
                                /* B/G FM-stereo */
-                               state->second = carrier_detect_55[max2].cdo;
+                               state->second = msp3400c_carrier_detect_55[max2].cdo;
                                msp3400c_setmode(client, MSP_MODE_FM_TERRA);
                                state->nicam_on = 0;
                                msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
                                state->watch_stereo = 1;
                        } else if (max2 == 1 && HAVE_NICAM(state)) {
                                /* B/G NICAM */
-                               state->second = carrier_detect_55[max2].cdo;
+                               state->second = msp3400c_carrier_detect_55[max2].cdo;
                                msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
                                state->nicam_on = 1;
                                msp3400c_setcarrier(client, state->second, state->main);
@@ -1026,7 +1003,7 @@ static int msp3400c_thread(void *data)
                case 3: /* 6.5 */
                        if (max2 == 1 || max2 == 2) {
                                /* D/K FM-stereo */
-                               state->second = carrier_detect_65[max2].cdo;
+                               state->second = msp3400c_carrier_detect_65[max2].cdo;
                                msp3400c_setmode(client, MSP_MODE_FM_TERRA);
                                state->nicam_on = 0;
                                msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
@@ -1034,7 +1011,7 @@ static int msp3400c_thread(void *data)
                        } else if (max2 == 0 &&
                                   state->norm == VIDEO_MODE_SECAM) {
                                /* L NICAM or AM-mono */
-                               state->second = carrier_detect_65[max2].cdo;
+                               state->second = msp3400c_carrier_detect_65[max2].cdo;
                                msp3400c_setmode(client, MSP_MODE_AM_NICAM);
                                state->nicam_on = 0;
                                msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
@@ -1044,7 +1021,7 @@ static int msp3400c_thread(void *data)
                                state->watch_stereo = 1;
                        } else if (max2 == 0 && HAVE_NICAM(state)) {
                                /* D/K NICAM */
-                               state->second = carrier_detect_65[max2].cdo;
+                               state->second = msp3400c_carrier_detect_65[max2].cdo;
                                msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
                                state->nicam_on = 1;
                                msp3400c_setcarrier(client, state->second, state->main);
@@ -1056,7 +1033,7 @@ static int msp3400c_thread(void *data)
                case 0: /* 4.5 */
                default:
                no_second:
-                       state->second = carrier_detect_main[max1].cdo;
+                       state->second = msp3400c_carrier_detect_main[max1].cdo;
                        msp3400c_setmode(client, MSP_MODE_FM_TERRA);
                        state->nicam_on = 0;
                        msp3400c_setcarrier(client, state->second, state->main);
@@ -1066,7 +1043,7 @@ static int msp3400c_thread(void *data)
                }
 
                /* unmute */
-               msp_set_volume(client, state->muted, state->left, state->right);
+               msp_set_audio(client);
                msp3400c_restore_dfp(client);
 
                if (debug)
@@ -1191,7 +1168,7 @@ static int msp3410d_thread(void *data)
                if (state->mode == MSP_MODE_EXTERN) {
                        /* no carrier scan needed, just unmute */
                        msp_dbg1("thread: no carrier scan\n");
-               msp_set_volume(client, state->muted, state->left, state->right);
+                       msp_set_audio(client);
                        continue;
                }
 
@@ -1311,9 +1288,7 @@ static int msp3410d_thread(void *data)
                }
 
                /* unmute, restore misc registers */
-               msp_set_bass(client, state->bass);
-               msp_set_treble(client, state->treble);
-               msp_set_volume(client, state->muted, state->left, state->right);
+               msp_set_audio(client);
                msp_write_dsp(client, 0x13, state->acb);
                msp_write_dem(client, 0x40, state->i2s_mode);
                msp3400c_restore_dfp(client);
@@ -1335,7 +1310,40 @@ static int msp3410d_thread(void *data)
 /* select which are available in the newer G versions                      */
 /* struct msp: only norm, acb and source are really used in this mode      */
 
-static void msp34xxg_set_source(struct i2c_client *client, int source);
+/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
+ * the value for source is the same as bit 15:8 of DFP registers 0x08,
+ * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
+ *
+ * this function replaces msp3400c_setstereo
+ */
+static void msp34xxg_set_source(struct i2c_client *client, int source)
+{
+       struct msp_state *state = i2c_get_clientdata(client);
+
+       /* fix matrix mode to stereo and let the msp choose what
+        * to output according to 'source', as recommended
+        * for MONO (source==0) downmixing set bit[7:0] to 0x30
+        */
+       int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
+
+       msp_dbg1("set source to %d (0x%x)\n", source, value);
+       /* Loudspeaker Output */
+       msp_write_dsp(client, 0x08, value);
+       /* SCART1 DA Output */
+       msp_write_dsp(client, 0x0a, value);
+       /* Quasi-peak detector */
+       msp_write_dsp(client, 0x0c, value);
+       /*
+        * set identification threshold. Personally, I
+        * I set it to a higher value that the default
+        * of 0x190 to ignore noisy stereo signals.
+        * this needs tuning. (recommended range 0x00a0-0x03c0)
+        * 0x7f0 = forced mono mode
+        */
+       /* a2 threshold for stereo/bilingual */
+       msp_write_dem(client, 0x22, stereo_threshold);
+       state->source = source;
+}
 
 /* (re-)initialize the msp34xxg, according to the current norm in state->norm
  * return 0 if it worked, -1 if it failed
@@ -1343,15 +1351,14 @@ static void msp34xxg_set_source(struct i2c_client *client, int source);
 static int msp34xxg_reset(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
-       int modus,std;
+       int modus, std;
 
        if (msp_reset(client))
                return -1;
 
        /* make sure that input/output is muted (paranoid mode) */
-       if (msp_write_dsp(client,
-                          0x13, /* ACB */
-                          0x0f20 /* mute DSP input, mute SCART 1 */))
+       /* ACB, mute DSP input, mute SCART 1 */
+       if (msp_write_dsp(client, 0x13, 0x0f20))
                return -1;
 
        msp_write_dem(client, 0x40, state->i2s_mode);
@@ -1359,27 +1366,23 @@ static int msp34xxg_reset(struct i2c_client *client)
        /* step-by-step initialisation, as described in the manual */
        modus = msp_modus(client, state->norm);
        std   = msp_standard(state->norm);
-       modus &= ~0x03; /* STATUS_CHANGE=0 */
-       modus |= 0x01;  /* AUTOMATIC_SOUND_DETECTION=1 */
-       if (msp_write_dem(client, 0x30/*MODUS*/, modus))
+       modus &= ~0x03; /* STATUS_CHANGE = 0 */
+       modus |= 0x01;  /* AUTOMATIC_SOUND_DETECTION = 1 */
+       if (msp_write_dem(client, 0x30, modus))
                return -1;
-       if (msp_write_dem(client, 0x20/*standard*/, std))
+       if (msp_write_dem(client, 0x20, std))
                return -1;
 
        /* write the dfps that may have an influence on
           standard/audio autodetection right now */
        msp34xxg_set_source(client, state->source);
 
-       if (msp_write_dfp_with_default(client, 0x0e,    /* AM/FM Prescale */
-                                           0x3000
-                                           /* default: [15:8] 75khz deviation */
-           ))
+       /* AM/FM Prescale, default: [15:8] 75khz deviation */
+       if (msp34xxg_write_dfp_with_default(client, 0x0e, 0x3000))
                return -1;
 
-       if (msp_write_dfp_with_default(client, 0x10,    /* NICAM Prescale */
-                                           0x5a00
-                                           /* default: 9db gain (as recommended) */
-           ))
+       /* NICAM Prescale, default: 9db gain (as recommended) */
+       if (msp34xxg_write_dfp_with_default(client, 0x10, 0x5a00))
                return -1;
 
        return 0;
@@ -1396,7 +1399,7 @@ static int msp34xxg_thread(void *data)
        state->source = 1; /* default */
        for (;;) {
                msp_dbg2("msp34xxg thread: sleep\n");
-               msp_sleep(state,-1);
+               msp_sleep(state, -1);
                msp_dbg2("msp34xxg thread: wakeup\n");
 
        restart:
@@ -1414,7 +1417,7 @@ static int msp34xxg_thread(void *data)
                /* watch autodetect */
                msp_dbg1("triggered autodetect, waiting for result\n");
                for (i = 0; i < 10; i++) {
-                       if (msp_sleep(state,100))
+                       if (msp_sleep(state, 100))
                                goto restart;
 
                        /* check results */
@@ -1425,7 +1428,7 @@ static int msp34xxg_thread(void *data)
                        }
                        msp_dbg1("detection still in progress\n");
                }
-               if (0x01 == std) {
+               if (std == 1) {
                        msp_dbg1("detection still in progress after 10 tries. giving up.\n");
                        continue;
                }
@@ -1436,11 +1439,7 @@ static int msp34xxg_thread(void *data)
                        msp_standard_mode_name(std), std);
 
                /* unmute: dispatch sound to scart output, set scart volume */
-               msp_dbg1("unmute\n");
-
-               msp_set_bass(client, state->bass);
-               msp_set_treble(client, state->treble);
-               msp_set_volume(client, state->muted, state->left, state->right);
+               msp_set_audio(client);
 
                /* restore ACB */
                if (msp_write_dsp(client, 0x13, state->acb))
@@ -1452,52 +1451,13 @@ static int msp34xxg_thread(void *data)
        return 0;
 }
 
-/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
- * the value for source is the same as bit 15:8 of DFP registers 0x08,
- * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
- *
- * this function replaces msp3400c_setstereo
- */
-static void msp34xxg_set_source(struct i2c_client *client, int source)
-{
-       struct msp_state *state = i2c_get_clientdata(client);
-
-       /* fix matrix mode to stereo and let the msp choose what
-        * to output according to 'source', as recommended
-        * for MONO (source==0) downmixing set bit[7:0] to 0x30
-        */
-       int value = (source&0x07)<<8|(source==0 ? 0x30:0x20);
-       msp_dbg1("set source to %d (0x%x)\n", source, value);
-       msp_write_dsp(client,
-                      0x08, /* Loudspeaker Output */
-                      value);
-       msp_write_dsp(client,
-                      0x0a, /* SCART1 DA Output */
-                      value);
-       msp_write_dsp(client,
-                      0x0c, /* Quasi-peak detector */
-                      value);
-       /*
-        * set identification threshold. Personally, I
-        * I set it to a higher value that the default
-        * of 0x190 to ignore noisy stereo signals.
-        * this needs tuning. (recommended range 0x00a0-0x03c0)
-        * 0x7f0 = forced mono mode
-        */
-       msp_write_dem(client,
-                      0x22, /* a2 threshold for stereo/bilingual */
-                      stereo_threshold);
-       state->source=source;
-}
-
 static void msp34xxg_detect_stereo(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
 
-       int status = msp_read_dem(client,
-                                  0x0200 /* STATUS */);
-       int is_bilingual = status&0x100;
-       int is_stereo = status&0x40;
+       int status = msp_read_dem(client, 0x0200);
+       int is_bilingual = status & 0x100;
+       int is_stereo = status & 0x40;
 
        state->rxsubchans = 0;
        if (is_stereo)
@@ -1505,7 +1465,7 @@ static void msp34xxg_detect_stereo(struct i2c_client *client)
        else
                state->rxsubchans |= V4L2_TUNER_SUB_MONO;
        if (is_bilingual) {
-               state->rxsubchans |= V4L2_TUNER_SUB_LANG1|V4L2_TUNER_SUB_LANG2;
+               state->rxsubchans |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
                /* I'm supposed to check whether it's SAP or not
                 * and set only LANG2/SAP in this case. Yet, the MSP
                 * does a lot of work to hide this and handle everything
@@ -1524,17 +1484,17 @@ static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
 
        switch (audmode) {
        case V4L2_TUNER_MODE_MONO:
-               source=0; /* mono only */
+               source = 0; /* mono only */
                break;
        case V4L2_TUNER_MODE_STEREO:
-               source=1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
+               source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
                /* problem: that could also mean 2 (scart input) */
                break;
        case V4L2_TUNER_MODE_LANG1:
-               source=3; /* stereo or A */
+               source = 3; /* stereo or A */
                break;
        case V4L2_TUNER_MODE_LANG2:
-               source=4; /* stereo or B */
+               source = 4; /* stereo or B */
                break;
        default:
                audmode = 0;
@@ -1550,11 +1510,11 @@ static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
 
 static void msp_wake_thread(struct i2c_client *client)
 {
-       struct msp_state *state  = i2c_get_clientdata(client);
+       struct msp_state *state = i2c_get_clientdata(client);
 
        if (NULL == state->kthread)
                return;
-       msp_set_volume(client,state->muted,0,0);
+       msp_set_mute(client);
        state->watch_stereo = 0;
        state->restart = 1;
        wake_up_interruptible(&state->wq);
@@ -1572,7 +1532,7 @@ static int mode_v4l2_to_v4l1(int rxsubchans)
                mode |= VIDEO_SOUND_LANG2;
        if (rxsubchans & V4L2_TUNER_SUB_LANG1)
                mode |= VIDEO_SOUND_LANG1;
-       if (0 == mode)
+       if (mode == 0)
                mode |= VIDEO_SOUND_MONO;
        return mode;
 }
@@ -1644,7 +1604,7 @@ static struct v4l2_queryctrl msp_qctrl[] = {
 
 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
 {
-       struct msp_state *state  = i2c_get_clientdata(client);
+       struct msp_state *state = i2c_get_clientdata(client);
 
        switch (state->opmode) {
        case OPMODE_MANUAL:
@@ -1660,94 +1620,68 @@ static void msp_any_set_audmode(struct i2c_client *client, int audmode)
 
 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 {
-       struct msp_state *state  = i2c_get_clientdata(client);
+       struct msp_state *state = i2c_get_clientdata(client);
 
        switch (ctrl->id) {
        case V4L2_CID_AUDIO_MUTE:
                ctrl->value = state->muted;
-               return 0;
+               break;
+
        case V4L2_CID_AUDIO_BALANCE:
-       {
-               int volume = max(state->left, state->right);
-
-               ctrl->value = (32768 * min(state->left, state->right)) /
-                   (volume ? volume : 1);
-               ctrl->value = (state->left < state->right) ?
-                   (65535 - ctrl->value) : ctrl->value;
-               if (0 == volume)
-                       ctrl->value = 32768;
-               return 0;
-       }
+               ctrl->value = state->balance;
+               break;
+
        case V4L2_CID_AUDIO_BASS:
                ctrl->value = state->bass;
-               return 0;
+               break;
+
        case V4L2_CID_AUDIO_TREBLE:
                ctrl->value = state->treble;
-               return 0;
+               break;
+
        case V4L2_CID_AUDIO_VOLUME:
-               ctrl->value = max(state->left, state->right);
-               return 0;
+               ctrl->value = state->volume;
+               break;
+
        default:
                return -EINVAL;
        }
+       return 0;
 }
 
 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 {
        struct msp_state *state = i2c_get_clientdata(client);
-       int set_volume = 0, balance, volume;
 
        switch (ctrl->id) {
        case V4L2_CID_AUDIO_MUTE:
                if (ctrl->value < 0 || ctrl->value >= 2)
                        return -ERANGE;
                state->muted = ctrl->value;
-               msp_set_volume(client, state->muted, state->left, state->right);
-               return 0;
-
-       case V4L2_CID_AUDIO_BALANCE:
-               balance = ctrl->value;
-               volume = max(state->left, state->right);
-               set_volume = 1;
                break;
 
        case V4L2_CID_AUDIO_BASS:
                state->bass = ctrl->value;
-               msp_set_bass(client, state->bass);
-               return 0;
+               break;
 
        case V4L2_CID_AUDIO_TREBLE:
                state->treble = ctrl->value;
-               msp_set_treble(client, state->treble);
-               return 0;
-
-       case V4L2_CID_AUDIO_VOLUME:
-               volume = max(state->left, state->right);
+               break;
 
-               balance = (32768 * min(state->left, state->right)) /
-                                       (volume ? volume : 1);
-               balance = (state->left < state->right) ?
-                                       (65535 - balance) : balance;
-               if (volume == 0)
-                       balance = 32768;
+       case V4L2_CID_AUDIO_BALANCE:
+               state->balance = ctrl->value;
+               break;
 
-               volume = ctrl->value;
-               set_volume = 1;
+       case V4L2_CID_AUDIO_VOLUME:
+               state->volume = ctrl->value;
+               if (state->volume == 0)
+                       state->balance = 32768;
                break;
 
        default:
                return -EINVAL;
        }
-
-       if (set_volume) {
-               state->left = (min(65536 - balance, 32768) * volume) / 32768;
-               state->right = (min(balance, 32768) * volume) / 32768;
-
-               msp_dbg2("volume=%d, balance=%d, left=%d, right=%d",
-                       volume, balance, state->left, state->right);
-
-               msp_set_volume(client, state->muted, state->left, state->right);
-       }
+       msp_set_audio(client);
        return 0;
 }
 
@@ -1757,10 +1691,11 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        u16 *sarg = arg;
        int scart = 0;
 
+       if (debug >= 2)
+               v4l_i2c_print_ioctl(client, cmd);
+
        switch (cmd) {
        case AUDC_SET_INPUT:
-               msp_dbg1("AUDC_SET_INPUT(%d)\n",*sarg);
-
                if (*sarg == state->input)
                        break;
                state->input = *sarg;
@@ -1800,7 +1735,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                break;
 
        case AUDC_SET_RADIO:
-               msp_dbg1("AUDC_SET_RADIO\n");
                state->norm = VIDEO_MODE_RADIO;
                msp_dbg1("switching to radio mode\n");
                state->watch_stereo = 0;
@@ -1810,7 +1744,7 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                        msp3400c_setmode(client, MSP_MODE_FM_RADIO);
                        msp3400c_setcarrier(client, MSP_CARRIER(10.7),
                                            MSP_CARRIER(10.7));
-                       msp_set_volume(client, state->muted, state->left, state->right);
+                       msp_set_audio(client);
                        break;
                case OPMODE_AUTODETECT:
                case OPMODE_AUTOSELECT:
@@ -1852,7 +1786,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        {
                struct video_audio *va = arg;
 
-               msp_dbg1("VIDIOCGAUDIO\n");
                va->flags |= VIDEO_AUDIO_VOLUME |
                        VIDEO_AUDIO_BASS |
                        VIDEO_AUDIO_TREBLE |
@@ -1862,13 +1795,8 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
                if (state->muted)
                        va->flags |= VIDEO_AUDIO_MUTE;
-               va->volume = max(state->left, state->right);
-               va->balance = (32768 * min(state->left, state->right)) /
-                   (va->volume ? va->volume : 1);
-               va->balance = (state->left < state->right) ?
-                   (65535 - va->balance) : va->balance;
-               if (0 == va->volume)
-                       va->balance = 32768;
+               va->volume = state->volume;
+               va->balance = state->volume ? state->balance : 32768;
                va->bass = state->bass;
                va->treble = state->treble;
 
@@ -1881,19 +1809,12 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        {
                struct video_audio *va = arg;
 
-               msp_dbg1("VIDIOCSAUDIO\n");
                state->muted = (va->flags & VIDEO_AUDIO_MUTE);
-               state->left = (min(65536 - va->balance, 32768) *
-                            va->volume) / 32768;
-               state->right = (min((int)va->balance, 32768) * va->volume) / 32768;
+               state->volume = va->volume;
+               state->balance = va->balance;
                state->bass = va->bass;
                state->treble = va->treble;
-               msp_dbg1("vol %d, bal %d, flags %x, left %d, right %d, bass %d, treble %d, mode %x\n",
-                       va->volume, va->balance, va->flags, state->left,
-                       state->right, state->bass, state->treble, state->mode);
-               msp_set_volume(client, state->muted, state->left, state->right);
-               msp_set_bass(client, state->bass);
-               msp_set_treble(client, state->treble);
+               msp_set_audio(client);
 
                if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
                        msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode));
@@ -1904,7 +1825,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        {
                struct video_channel *vc = arg;
 
-               msp_dbg1("VIDIOCSCHAN (norm=%d)\n",vc->norm);
                state->norm = vc->norm;
                msp_wake_thread(client);
                break;
@@ -1914,7 +1834,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        case VIDIOC_S_FREQUENCY:
        {
                /* new channel -- kick audio carrier scan */
-               msp_dbg1("VIDIOCSFREQ\n");
                msp_wake_thread(client);
                break;
        }
@@ -1924,7 +1843,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        {
                struct msp_matrix *mspm = arg;
 
-               msp_dbg1("MSP_SET_MATRIX\n");
                msp_set_scart(client, mspm->input, mspm->output);
                break;
        }
@@ -1936,11 +1854,11 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
                /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
                if (*id & V4L2_STD_PAL) {
-                       state->norm=VIDEO_MODE_PAL;
+                       state->norm = VIDEO_MODE_PAL;
                } else if (*id & V4L2_STD_SECAM) {
-                       state->norm=VIDEO_MODE_SECAM;
+                       state->norm = VIDEO_MODE_SECAM;
                } else {
-                       state->norm=VIDEO_MODE_NTSC;
+                       state->norm = VIDEO_MODE_NTSC;
                }
 
                msp_wake_thread(client);
@@ -1957,16 +1875,16 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                i->type = V4L2_INPUT_TYPE_TUNER;
                switch (i->index) {
                case AUDIO_RADIO:
-                       strcpy(i->name,"Radio");
+                       strcpy(i->name, "Radio");
                        break;
                case AUDIO_EXTERN_1:
-                       strcpy(i->name,"Extern 1");
+                       strcpy(i->name, "Extern 1");
                        break;
                case AUDIO_EXTERN_2:
-                       strcpy(i->name,"Extern 2");
+                       strcpy(i->name, "Extern 2");
                        break;
                case AUDIO_TUNER:
-                       strcpy(i->name,"Television");
+                       strcpy(i->name, "Television");
                        break;
                default:
                        return -EINVAL;
@@ -1978,20 +1896,20 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
        {
                struct v4l2_audio *a = arg;
 
-               memset(a,0,sizeof(*a));
+               memset(a, 0, sizeof(*a));
 
                switch (a->index) {
                case AUDIO_RADIO:
-                       strcpy(a->name,"Radio");
+                       strcpy(a->name, "Radio");
                        break;
                case AUDIO_EXTERN_1:
-                       strcpy(a->name,"Extern 1");
+                       strcpy(a->name, "Extern 1");
                        break;
                case AUDIO_EXTERN_2:
-                       strcpy(a->name,"Extern 2");
+                       strcpy(a->name, "Extern 2");
                        break;
                case AUDIO_TUNER:
-                       strcpy(a->name,"Television");
+                       strcpy(a->name, "Television");
                        break;
                default:
                        return -EINVAL;
@@ -1999,7 +1917,7 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
                msp_any_detect_stereo(client);
                if (state->audmode == V4L2_TUNER_MODE_STEREO) {
-                       a->capability=V4L2_AUDCAP_STEREO;
+                       a->capability = V4L2_AUDCAP_STEREO;
                }
 
                break;
@@ -2032,10 +1950,10 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                if (scart) {
                        state->rxsubchans = V4L2_TUNER_SUB_STEREO;
                        state->audmode = V4L2_TUNER_MODE_STEREO;
-                       msp_set_scart(client,scart,0);
-                       msp_write_dsp(client,0x000d,0x1900);
+                       msp_set_scart(client, scart, 0);
+                       msp_write_dsp(client, 0x000d, 0x1900);
                }
-               if (sarg->capability==V4L2_AUDCAP_STEREO) {
+               if (sarg->capability == V4L2_AUDCAP_STEREO) {
                        state->audmode = V4L2_TUNER_MODE_STEREO;
                } else {
                        state->audmode &= ~V4L2_TUNER_MODE_STEREO;
@@ -2053,14 +1971,13 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                vt->audmode    = state->audmode;
                vt->rxsubchans = state->rxsubchans;
                vt->capability = V4L2_TUNER_CAP_STEREO |
-                       V4L2_TUNER_CAP_LANG1|
-                       V4L2_TUNER_CAP_LANG2;
+                       V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
                break;
        }
 
        case VIDIOC_S_TUNER:
        {
-               struct v4l2_tuner *vt=(struct v4l2_tuner *)arg;
+               struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 
                /* only set audmode */
                if (vt->audmode != -1 && vt->audmode != 0)
@@ -2070,20 +1987,20 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
        case VIDIOC_G_AUDOUT:
        {
-               struct v4l2_audioout *a=(struct v4l2_audioout *)arg;
-               int idx=a->index;
+               struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
+               int idx = a->index;
 
-               memset(a,0,sizeof(*a));
+               memset(a, 0, sizeof(*a));
 
                switch (idx) {
                case 0:
-                       strcpy(a->name,"Scart1 Out");
+                       strcpy(a->name, "Scart1 Out");
                        break;
                case 1:
-                       strcpy(a->name,"Scart2 Out");
+                       strcpy(a->name, "Scart2 Out");
                        break;
                case 2:
-                       strcpy(a->name,"I2S Out");
+                       strcpy(a->name, "I2S Out");
                        break;
                default:
                        return -EINVAL;
@@ -2094,29 +2011,29 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
        case VIDIOC_S_AUDOUT:
        {
-               struct v4l2_audioout *a=(struct v4l2_audioout *)arg;
+               struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 
-               if (a->index<0||a->index>2)
+               if (a->index < 0 || a->index > 2)
                        return -EINVAL;
 
-               msp_dbg1("Setting audio out on msp34xx to input %i\n",a->index);
-               msp_set_scart(client,state->in_scart,a->index+1);
+               msp_dbg1("Setting audio out on msp34xx to input %i\n", a->index);
+               msp_set_scart(client, state->in_scart, a->index + 1);
 
                break;
        }
 
        case VIDIOC_INT_I2S_CLOCK_FREQ:
        {
-               u32 *a=(u32 *)arg;
+               u32 *a = (u32 *)arg;
 
-               msp_dbg1("Setting I2S speed to %d\n",*a);
+               msp_dbg1("Setting I2S speed to %d\n", *a);
 
                switch (*a) {
                        case 1024000:
-                               state->i2s_mode=0;
+                               state->i2s_mode = 0;
                                break;
                        case 2048000:
-                               state->i2s_mode=1;
+                               state->i2s_mode = 1;
                                break;
                        default:
                                return -EINVAL;
@@ -2129,41 +2046,26 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
                struct v4l2_queryctrl *qc = arg;
                int i;
 
-               msp_dbg1("VIDIOC_QUERYCTRL\n");
-
                for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
-                       if (qc->id && qc->id ==  msp_qctrl[i].id) {
-                               memcpy(qc, &(msp_qctrl[i]),
-                                       sizeof(*qc));
+                       if (qc->id && qc->id == msp_qctrl[i].id) {
+                               memcpy(qc, &msp_qctrl[i], sizeof(*qc));
                                return 0;
                        }
-
                return -EINVAL;
        }
 
        case VIDIOC_G_CTRL:
-       {
-               struct v4l2_control *ctrl = arg;
-               msp_dbg1("VIDIOC_G_CTRL\n");
-
-               return msp_get_ctrl(client, ctrl);
-       }
+               return msp_get_ctrl(client, arg);
 
        case VIDIOC_S_CTRL:
-       {
-               struct v4l2_control *ctrl = arg;
-
-               msp_dbg1("VIDIOC_S_CTRL\n");
-
-               return msp_set_ctrl(client, ctrl);
-       }
+               return msp_set_ctrl(client, arg);
 
        case VIDIOC_LOG_STATUS:
                msp_any_detect_stereo(client);
                msp_info("%s rev1 = 0x%04x rev2 = 0x%04x\n",
                                client->name, state->rev1, state->rev2);
-               msp_info("Volume: left %d right %d bass %d treble %d%s\n",
-                               state->left, state->right,
+               msp_info("Audio:  volume %d balance %d bass %d treble %d%s\n",
+                               state->volume, state->balance,
                                state->bass, state->treble,
                                state->muted ? " (muted)" : "");
                msp_info("Mode:   %s (%s%s)\n", msp_standard_mode_name(state->mode),
@@ -2233,8 +2135,8 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 
        memset(state, 0, sizeof(*state));
        state->norm = VIDEO_MODE_NTSC;
-       state->left = 58880;    /* 0db gain */
-       state->right = 58880;   /* 0db gain */
+       state->volume = 58880;  /* 0db gain */
+       state->balance = 32768; /* 0db gain */
        state->bass = 32768;
        state->treble = 32768;
        state->input = -1;
@@ -2255,7 +2157,7 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
                return -1;
        }
 
-       msp_set_volume(client, state->muted, state->left, state->right);
+       msp_set_audio(client);
 
        snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
                 ((state->rev1 >> 4) & 0x0f) + '3',
@@ -2308,7 +2210,7 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
        if (thread_func) {
                state->kthread = kthread_run(thread_func, client, "msp34xx");
 
-               if (NULL == state->kthread)
+               if (state->kthread == NULL)
                        msp_warn("kernel_thread() failed\n");
                msp_wake_thread(client);
        }