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authorOlli Salonen <olli.salonen@iki.fi>2014-11-24 03:57:33 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-11-25 09:11:54 -0200
commit073f38494ab9bad6edf589c74a1f09c358c5068c (patch)
treeddfe039f86d1aa451a97ae017b5520a83d9f872e /drivers/media/tuners/si2157.c
parent251a79f8f5adfd816de4e052b5e3619a5a1d0910 (diff)
[media] si2157: Add support for Si2146-A10
The Silicon Labs Si2146 tuner seems to work with the same driver as the Si2157, but there a few exceptions. The powerup command seems to be quite a bit different. In addition there's a property 0207 that requires a different value. Thus another entry is created in the si2157_id table to support also si2146 in this driver. The datasheet is available on manufacturer's website: http://www.silabs.com/support%20documents/technicaldocs/Si2146-short.pdf Signed-off-by: Olli Salonen <olli.salonen@iki.fi> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/tuners/si2157.c')
-rw-r--r--drivers/media/tuners/si2157.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index b086b87d0890..a8f2edb92b60 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -1,5 +1,5 @@
/*
- * Silicon Labs Si2147/2157/2158 silicon tuner driver
+ * Silicon Labs Si2146/2147/2157/2158 silicon tuner driver
*
* Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
*
@@ -93,8 +93,13 @@ static int si2157_init(struct dvb_frontend *fe)
goto warm;
/* power up */
- memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
- cmd.wlen = 15;
+ if (s->chiptype == SI2157_CHIPTYPE_SI2146) {
+ memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9);
+ cmd.wlen = 9;
+ } else {
+ memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
+ cmd.wlen = 15;
+ }
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
@@ -114,6 +119,7 @@ static int si2157_init(struct dvb_frontend *fe)
#define SI2158_A20 ('A' << 24 | 58 << 16 | '2' << 8 | '0' << 0)
#define SI2157_A30 ('A' << 24 | 57 << 16 | '3' << 8 | '0' << 0)
#define SI2147_A30 ('A' << 24 | 47 << 16 | '3' << 8 | '0' << 0)
+ #define SI2146_A10 ('A' << 24 | 46 << 16 | '1' << 8 | '0' << 0)
switch (chip_id) {
case SI2158_A20:
@@ -121,6 +127,7 @@ static int si2157_init(struct dvb_frontend *fe)
break;
case SI2157_A30:
case SI2147_A30:
+ case SI2146_A10:
goto skip_fw_download;
break;
default:
@@ -275,7 +282,10 @@ static int si2157_set_params(struct dvb_frontend *fe)
if (ret)
goto err;
- memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6);
+ if (s->chiptype == SI2157_CHIPTYPE_SI2146)
+ memcpy(cmd.args, "\x14\x00\x02\x07\x00\x01", 6);
+ else
+ memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6);
cmd.wlen = 6;
cmd.rlen = 4;
ret = si2157_cmd_execute(s, &cmd);
@@ -308,7 +318,7 @@ static int si2157_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
static const struct dvb_tuner_ops si2157_ops = {
.info = {
- .name = "Silicon Labs Si2157/Si2158",
+ .name = "Silicon Labs Si2146/2147/2157/2158",
.frequency_min = 110000000,
.frequency_max = 862000000,
},
@@ -339,6 +349,7 @@ static int si2157_probe(struct i2c_client *client,
s->fe = cfg->fe;
s->inversion = cfg->inversion;
s->fw_loaded = false;
+ s->chiptype = (u8)id->driver_data;
mutex_init(&s->i2c_mutex);
/* check if the tuner is there */
@@ -355,7 +366,10 @@ static int si2157_probe(struct i2c_client *client,
i2c_set_clientdata(client, s);
dev_info(&s->client->dev,
- "Silicon Labs Si2157/Si2158 successfully attached\n");
+ "Silicon Labs %s successfully attached\n",
+ s->chiptype == SI2157_CHIPTYPE_SI2146 ?
+ "Si2146" : "Si2147/2157/2158");
+
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
@@ -380,6 +394,7 @@ static int si2157_remove(struct i2c_client *client)
static const struct i2c_device_id si2157_id[] = {
{"si2157", 0},
+ {"si2146", 1},
{}
};
MODULE_DEVICE_TABLE(i2c, si2157_id);
@@ -396,7 +411,7 @@ static struct i2c_driver si2157_driver = {
module_i2c_driver(si2157_driver);
-MODULE_DESCRIPTION("Silicon Labs Si2157/Si2158 silicon tuner driver");
+MODULE_DESCRIPTION("Silicon Labs Si2146/2147/2157/2158 silicon tuner driver");
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(SI2158_A20_FIRMWARE);