diff options
Diffstat (limited to 'drivers/media/video/tea5767.c')
| -rw-r--r-- | drivers/media/video/tea5767.c | 37 |
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); } |