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path: root/drivers/media/video/tea5767.c
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Diffstat (limited to 'drivers/media/video/tea5767.c')
-rw-r--r--drivers/media/video/tea5767.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/media/video/tea5767.c b/drivers/media/video/tea5767.c
index cebcc1f..38bf509 100644
--- a/drivers/media/video/tea5767.c
+++ b/drivers/media/video/tea5767.c
@@ -2,7 +2,6 @@
* For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
* I2C address is allways 0xC0.
*
- * $Id: tea5767.c,v 1.27 2005/07/31 12:10:56 mchehab Exp $
*
* Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br)
* This code is placed under the terms of the GNU General Public License
@@ -205,11 +204,6 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
buffer[4] = 0;
- if (t->mode == T_STANDBY) {
- tuner_dbg("TEA5767 set to standby mode\n");
- buffer[3] |= TEA5767_STDBY;
- }
-
if (t->audmode == V4L2_TUNER_MODE_MONO) {
tuner_dbg("TEA5767 set to mono\n");
buffer[2] |= TEA5767_MONO;
@@ -290,13 +284,31 @@ static int tea5767_stereo(struct i2c_client *c)
return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
}
+static void tea5767_standby(struct i2c_client *c)
+{
+ unsigned char buffer[5];
+ struct tuner *t = i2c_get_clientdata(c);
+ unsigned div, rc;
+
+ div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
+ buffer[0] = (div >> 8) & 0x3f;
+ buffer[1] = div & 0xff;
+ buffer[2] = TEA5767_PORT1_HIGH;
+ buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
+ TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
+ buffer[4] = 0;
+
+ if (5 != (rc = i2c_master_send(c, buffer, 5)))
+ tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+}
+
int tea5767_autodetection(struct i2c_client *c)
{
unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
int rc;
struct tuner *t = i2c_get_clientdata(c);
- if (7 != (rc = i2c_master_recv(c, buffer, 7))) {
+ if ((rc = i2c_master_recv(c, buffer, 7))< 5) {
tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc);
return EINVAL;
}
@@ -313,15 +325,10 @@ int tea5767_autodetection(struct i2c_client *c)
* bit 0 : internally set to 0
* Byte 5: bit 7:0 : == 0
*/
- if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) {
+ if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
tuner_warn("Chip ID is not zero. It is not a TEA5767\n");
return EINVAL;
}
- /* It seems that tea5767 returns 0xff after the 5th byte */
- if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) {
- tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n");
- return EINVAL;
- }
/* It seems that tea5767 returns 0xff after the 5th byte */
if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) {
@@ -337,14 +344,14 @@ int tea5767_tuner_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
- tuner_info("type set to %d (%s)\n", t->type,
- "Philips TEA5767HN FM Radio");
+ tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio");
strlcpy(c->name, "tea5767", sizeof(c->name));
t->tv_freq = set_tv_freq;
t->radio_freq = set_radio_freq;
t->has_signal = tea5767_signal;
t->is_stereo = tea5767_stereo;
+ t->standby = tea5767_standby;
return (0);
}