summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/easycap/easycap_debug.h1
-rw-r--r--drivers/staging/easycap/easycap_ioctl.c14
-rw-r--r--drivers/staging/easycap/easycap_low.c120
-rw-r--r--drivers/staging/easycap/easycap_main.c8
4 files changed, 96 insertions, 47 deletions
diff --git a/drivers/staging/easycap/easycap_debug.h b/drivers/staging/easycap/easycap_debug.h
index a4dcd7d..7042fe8 100644
--- a/drivers/staging/easycap/easycap_debug.h
+++ b/drivers/staging/easycap/easycap_debug.h
@@ -25,3 +25,4 @@
*/
/*****************************************************************************/
extern int debug;
+extern int gain;
diff --git a/drivers/staging/easycap/easycap_ioctl.c b/drivers/staging/easycap/easycap_ioctl.c
index 3fe1385..7c46cb2 100644
--- a/drivers/staging/easycap/easycap_ioctl.c
+++ b/drivers/staging/easycap/easycap_ioctl.c
@@ -873,18 +873,26 @@ i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_AUDIO_VOLUME == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) || \
- (easycap_control[i1].maximum < value))
+ (easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
+ if ((easycap_control[i1].minimum <= peasycap->volume) && \
+ (easycap_control[i1].maximum >= \
+ peasycap->volume)) {
+ if (peasycap->volume == value) {
+ SAM("unchanged volume at 0x%02X\n", value);
+ return 0;
+ }
+ }
peasycap->volume = value;
mood = (16 > peasycap->volume) ? 16 : \
((31 < peasycap->volume) ? 31 : \
(__s8) peasycap->volume);
if (!audio_gainset(peasycap->pusb_device, mood)) {
- SAM("adjusting volume to 0x%01X\n", mood);
+ SAM("adjusting volume to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust volume to " \
- "0x%1X\n", mood);
+ "0x%2X\n", mood);
return -ENOENT;
}
break;
diff --git a/drivers/staging/easycap/easycap_low.c b/drivers/staging/easycap/easycap_low.c
index 4badef2..7d778ba 100644
--- a/drivers/staging/easycap/easycap_low.c
+++ b/drivers/staging/easycap/easycap_low.c
@@ -988,9 +988,9 @@ if (NULL == peasycap)
pusb_device = peasycap->pusb_device;
if (NULL == pusb_device)
- return -EFAULT;
+ return -ENODEV;
-JOT(8, "%02X %02X %02X %02X %02X %02X %02X %02X\n", \
+JOM(8, "%02X %02X %02X %02X %02X %02X %02X %02X\n", \
requesttype, request, \
(0x00FF & value_unmute), \
(0xFF00 & value_unmute) >> 8, \
@@ -1029,41 +1029,25 @@ if (rc != (int)length)
* THE UPPER BYTE SEEMS TO HAVE NO EFFECT.
*/
/*--------------------------------------------------------------------------*/
-
SET(pusb_device, 0x0500, 0x0094);
-
SET(pusb_device, 0x0500, 0x008C);
-
SET(pusb_device, 0x0506, 0x0001);
SET(pusb_device, 0x0507, 0x0000);
-
id1 = read_vt(pusb_device, 0x007C);
id2 = read_vt(pusb_device, 0x007E);
-SAY("0x%04X:0x%04X is audio vendor id\n", id1, id2);
-
+SAM("0x%04X:0x%04X is audio vendor id\n", id1, id2);
/*---------------------------------------------------------------------------*/
/*
-* SELECT AUDIO SOURCE "LINE IN" AND SET DEFAULT GAIN TO 0 dB.
-*
-* THESE COMMANDS SEEM TO BE ACCEPTED (THOUGH POSSIBLY IGNORED) EVEN WHEN
-* THERE IS NO SEPARATE AUDIO CHIP PRESENT.
+ * SELECT AUDIO SOURCE "LINE IN" AND SET THE AUDIO GAIN.
*/
/*---------------------------------------------------------------------------*/
-
-write_vt(pusb_device, 0x0002, 0x8000);
-write_vt(pusb_device, 0x001C, 0x8000);
-
-write_vt(pusb_device, 0x000E, 0x0000);
-write_vt(pusb_device, 0x0010, 0x0000);
-write_vt(pusb_device, 0x0012, 0x8000);
-write_vt(pusb_device, 0x0016, 0x0000);
-
-write_vt(pusb_device, 0x001A, 0x0404);
-write_vt(pusb_device, 0x0002, 0x0000);
-write_vt(pusb_device, 0x001C, 0x0000);
-
+if (31 < gain)
+ gain = 31;
+if (0 > gain)
+ gain = 0;
+if (0 != audio_gainset(pusb_device, (__s8)gain))
+ SAY("ERROR: audio_gainset() failed\n");
check_vt(pusb_device);
-
return 0;
}
/*****************************************************************************/
@@ -1096,17 +1080,23 @@ if (0 > igot)
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x12);
+igot = read_vt(pusb_device, 0x0014);
+if (0 > igot)
+ SAY("ERROR: failed to read VT1612A register 0x14\n");
+if (0x8000 & igot)
+ SAY("register 0x%02X muted\n", 0x14);
+
igot = read_vt(pusb_device, 0x0016);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x16\n");
if (0x8000 & igot)
SAY("register 0x%02X muted\n", 0x16);
-igot = read_vt(pusb_device, 0x001A);
+igot = read_vt(pusb_device, 0x0018);
if (0 > igot)
- SAY("ERROR: failed to read VT1612A register 0x1A\n");
+ SAY("ERROR: failed to read VT1612A register 0x18\n");
if (0x8000 & igot)
- SAY("register 0x%02X muted\n", 0x1A);
+ SAY("register 0x%02X muted\n", 0x18);
igot = read_vt(pusb_device, 0x001C);
if (0 > igot)
@@ -1118,14 +1108,18 @@ return 0;
}
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
-/*
- * NOTE: THIS DOES INCREASE THE VOLUME DRAMATICALLY:
- * audio_gainset(pusb_device, 0x000F);
+/* NOTE: THIS DOES INCREASE THE VOLUME DRAMATICALLY:
+ * audio_gainset(pusb_device, 0x000F);
*
- * IF 16<loud<31 VT1621A REGISTER 0x1C IS SET FOR POSITIVE GAIN.
- * IF loud<=16 VT1621A REGISTER 0x1C IS SET FOR ZERO GAIN.
- * THERE IS NEVER ANY (ADDITIONAL) ATTENUATION.
- */
+ * loud dB register 0x10 dB register 0x1C dB total
+ * 0 -34.5 0 -34.5
+ * .. .... . ....
+ * 15 10.5 0 10.5
+ * 16 12.0 0 12.0
+ * 17 12.0 1.5 13.5
+ * .. .... .... ....
+ * 31 12.0 22.5 34.5
+*/
/*---------------------------------------------------------------------------*/
int
audio_gainset(struct usb_device *pusb_device, __s8 loud)
@@ -1134,25 +1128,65 @@ int igot;
__u8 u8;
__u16 mute;
-if (16 > loud)
- loud = 16;
-u8 = 0x000F & (__u8)(loud - 16);
+if ((struct usb_device *)NULL == pusb_device)
+ return -ENODEV;
+if (0 > loud)
+ loud = 0;
+if (31 < loud)
+ loud = 31;
write_vt(pusb_device, 0x0002, 0x8000);
+/*---------------------------------------------------------------------------*/
+igot = read_vt(pusb_device, 0x000E);
+if (0 > igot) {
+ SAY("ERROR: failed to read VT1612A register 0x0E\n");
+ mute = 0x0000;
+} else
+ mute = 0x8000 & ((unsigned int)igot);
+mute = 0;
+if (16 > loud)
+ u8 = 0x01 | (0x001F & (((__u8)(15 - loud)) << 1));
+else
+ u8 = 0;
+
+JOT(8, "0x%04X=(mute|u8) for VT1612A register 0x0E\n", mute | u8);
+write_vt(pusb_device, 0x000E, (mute | u8));
+/*---------------------------------------------------------------------------*/
+igot = read_vt(pusb_device, 0x0010);
+if (0 > igot) {
+ SAY("ERROR: failed to read VT1612A register 0x10\n");
+ mute = 0x0000;
+} else
+ mute = 0x8000 & ((unsigned int)igot);
+mute = 0;
+
+JOT(8, "0x%04X=(mute|u8|(u8<<8)) for VT1612A register 0x10,...0x18\n", \
+ mute | u8 | (u8 << 8));
+write_vt(pusb_device, 0x0010, (mute | u8 | (u8 << 8)));
+write_vt(pusb_device, 0x0012, (mute | u8 | (u8 << 8)));
+write_vt(pusb_device, 0x0014, (mute | u8 | (u8 << 8)));
+write_vt(pusb_device, 0x0016, (mute | u8 | (u8 << 8)));
+write_vt(pusb_device, 0x0018, (mute | u8 | (u8 << 8)));
+/*---------------------------------------------------------------------------*/
igot = read_vt(pusb_device, 0x001C);
if (0 > igot) {
SAY("ERROR: failed to read VT1612A register 0x1C\n");
mute = 0x0000;
} else
mute = 0x8000 & ((unsigned int)igot);
+mute = 0;
-JOT(8, "0x%04X=(mute|u8|(u8<<8))\n", mute | u8 | (u8 << 8));
+if (16 <= loud)
+ u8 = 0x000F & (__u8)(loud - 16);
+else
+ u8 = 0;
-write_vt(pusb_device, 0x001C, 0x8000);
+JOT(8, "0x%04X=(mute|u8|(u8<<8)) for VT1612A register 0x1C\n", \
+ mute | u8 | (u8 << 8));
write_vt(pusb_device, 0x001C, (mute | u8 | (u8 << 8)));
+write_vt(pusb_device, 0x001A, 0x0404);
write_vt(pusb_device, 0x0002, 0x0000);
-
return 0;
}
/*****************************************************************************/
@@ -1161,6 +1195,8 @@ audio_gainget(struct usb_device *pusb_device)
{
int igot;
+if (NULL == pusb_device)
+ return -ENODEV;
igot = read_vt(pusb_device, 0x001C);
if (0 > igot)
SAY("ERROR: failed to read VT1612A register 0x1C\n");
diff --git a/drivers/staging/easycap/easycap_main.c b/drivers/staging/easycap/easycap_main.c
index 21450e8..ee5c8d9 100644
--- a/drivers/staging/easycap/easycap_main.c
+++ b/drivers/staging/easycap/easycap_main.c
@@ -34,8 +34,10 @@
int debug;
int bars;
+int gain = 16;
module_param(debug, int, S_IRUGO | S_IWUSR);
module_param(bars, int, S_IRUGO | S_IWUSR);
+module_param(gain, int, S_IRUGO | S_IWUSR);
/*---------------------------------------------------------------------------*/
/*
@@ -4770,7 +4772,8 @@ easycap_module_init(void)
int result;
SAY("========easycap=======\n");
-JOT(4, "begins. %i=debug %i=bars\n", debug, bars);
+JOT(4, "begins. %i=debug %i=bars %i=gain\n", debug, bars, \
+ gain);
SAY("version: " EASYCAP_DRIVER_VERSION "\n");
/*---------------------------------------------------------------------------*/
/*
@@ -4811,8 +4814,9 @@ MODULE_AUTHOR("R.M. Thomas <rmthomas@sciolus.org>");
MODULE_DESCRIPTION(EASYCAP_DRIVER_DESCRIPTION);
MODULE_VERSION(EASYCAP_DRIVER_VERSION);
#if defined(EASYCAP_DEBUG)
-MODULE_PARM_DESC(debug, "Debug level: 0 (default),1,2,...,9");
+MODULE_PARM_DESC(debug, "Debug level: 0 (default),1,2,...");
#endif /*EASYCAP_DEBUG*/
MODULE_PARM_DESC(bars, \
"Testcard bars on input signal failure: 0=>no, 1=>yes(default)");
+MODULE_PARM_DESC(gain, "Audio gain: 0,...,16(default),...31");
/*****************************************************************************/
OpenPOWER on IntegriCloud