[media] it913x: re-implement sleep

Re-implement sleep. Based USB sniffs taken from the latest Hauppauge
windows driver version 07/10/2014, 14.6.23.32191.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/tuners/it913x.c b/drivers/media/tuners/it913x.c
index f3e212c..11d391a 100644 (file)
--- a/drivers/media/tuners/it913x.c
+++ b/drivers/media/tuners/it913x.c
@@ -26,7 +26,8 @@ struct it913x_dev {
        struct i2c_client *client;
        struct regmap *regmap;
        struct dvb_frontend *fe;
-       u8 chip_ver;
+       u8 chip_ver:2;
+       u8 role:2;
        u8 firmware_ver;
        u16 tun_xtal;
        u8 tun_fdiv;
@@ -122,6 +123,62 @@ static int it913x_init(struct dvb_frontend *fe)
        return regmap_write(dev->regmap, 0x80ed81, val);
 }
 
+static int it913x_sleep(struct dvb_frontend *fe)
+{
+       struct it913x_dev *dev = fe->tuner_priv;
+       int ret, len;
+
+       dev_dbg(&dev->client->dev, "role=%u\n", dev->role);
+
+       ret  = regmap_bulk_write(dev->regmap, 0x80ec40, "\x00", 1);
+       if (ret)
+               goto err;
+
+       /*
+        * Writing '0x00' to master tuner register '0x80ec08' causes slave tuner
+        * communication lost. Due to that, we cannot put master full sleep.
+        */
+       if (dev->role == IT913X_ROLE_DUAL_MASTER)
+               len = 4;
+       else
+               len = 15;
+
+       dev_dbg(&dev->client->dev, "role=%u len=%d\n", dev->role, len);
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec02,
+                       "\x3f\x1f\x3f\x3e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
+                       len);
+       if (ret)
+               goto err;
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec12, "\x00\x00\x00\x00", 4);
+       if (ret)
+               goto err;
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec17,
+                       "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9);
+       if (ret)
+               goto err;
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec22,
+                       "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 10);
+       if (ret)
+               goto err;
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec20, "\x00", 1);
+       if (ret)
+               goto err;
+
+       ret = regmap_bulk_write(dev->regmap, 0x80ec3f, "\x01", 1);
+       if (ret)
+               goto err;
+
+       return 0;
+err:
+       dev_dbg(&dev->client->dev, "failed %d\n", ret);
+       return ret;
+}
+
 static int it9137_set_params(struct dvb_frontend *fe)
 {
        struct it913x_dev *dev = fe->tuner_priv;
@@ -274,20 +331,6 @@ static int it9137_set_params(struct dvb_frontend *fe)
        return (ret < 0) ? -ENODEV : 0;
 }
 
-/* Power sequence */
-/* Power Up    Tuner on -> Frontend suspend off -> Tuner clk on */
-/* Power Down  Frontend suspend on -> Tuner clk off -> Tuner off */
-
-static int it913x_sleep(struct dvb_frontend *fe)
-{
-       struct it913x_dev *dev = fe->tuner_priv;
-
-       if (dev->chip_ver == 0x01)
-               return it913x_script_loader(dev, it9135ax_tuner_off);
-       else
-               return it913x_script_loader(dev, it9137_tuner_off);
-}
-
 static const struct dvb_tuner_ops it913x_tuner_ops = {
        .info = {
                .name           = "ITE Tech IT913X",
@@ -323,6 +366,7 @@ static int it913x_probe(struct i2c_client *client,
        dev->client = client;
        dev->fe = cfg->fe;
        dev->chip_ver = cfg->chip_ver;
+       dev->role = cfg->role;
        dev->firmware_ver = 1;
        dev->regmap = regmap_init_i2c(client, &regmap_config);
        if (IS_ERR(dev->regmap)) {
@@ -349,7 +393,7 @@ static int it913x_probe(struct i2c_client *client,
 
        dev_info(&dev->client->dev, "ITE IT913X %s successfully attached\n",
                        chip_ver_str);
-       dev_dbg(&dev->client->dev, "chip_ver=%02x\n", dev->chip_ver);
+       dev_dbg(&dev->client->dev, "chip_ver=%u role=%u\n", dev->chip_ver, dev->role);
        return 0;
 
 err_regmap_exit:

diff --git a/drivers/media/tuners/it913x.h b/drivers/media/tuners/it913x.h
index 9789c4d..33de53d 100644 (file)
--- a/drivers/media/tuners/it913x.h
+++ b/drivers/media/tuners/it913x.h
@@ -40,7 +40,15 @@ struct it913x_config {
         * 1 = IT9135 AX
         * 2 = IT9135 BX
         */
-       u8 chip_ver:2;
+       unsigned int chip_ver:2;
+
+       /*
+        * tuner role
+        */
+#define IT913X_ROLE_SINGLE         0
+#define IT913X_ROLE_DUAL_MASTER    1
+#define IT913X_ROLE_DUAL_SLAVE     2
+       unsigned int role:2;
 };
 
 #endif

diff --git a/drivers/media/tuners/it913x_priv.h b/drivers/media/tuners/it913x_priv.h
index 3ed2d3c..41f9b2a 100644 (file)
--- a/drivers/media/tuners/it913x_priv.h
+++ b/drivers/media/tuners/it913x_priv.h
@@ -33,33 +33,6 @@ struct it913xset {   u32 address;
                        u8 count;
 };
 
-/* Tuner setting scripts for IT9135 AX */
-static struct it913xset it9135ax_tuner_off[] = {
-       {0x80ec40, {0x00}, 0x01}, /* Power Down Tuner */
-       {0x80ec02, {0x3f}, 0x01},
-       {0x80ec03, {0x1f}, 0x01},
-       {0x80ec04, {0x3f}, 0x01},
-       {0x80ec05, {0x3f}, 0x01},
-       {0x80ec3f, {0x01}, 0x01},
-       {0x000000, {0x00}, 0x00}, /* Terminating Entry */
-};
-
-/* Tuner setting scripts (still keeping it9137) */
-static struct it913xset it9137_tuner_off[] = {
-       {0x80ec40, {0x00}, 0x01}, /* Power Down Tuner */
-       {0x80ec02, {0x3f, 0x1f, 0x3f, 0x3f}, 0x04},
-       {0x80ec06, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                               0x00, 0x00, 0x00, 0x00}, 0x0c},
-       {0x80ec12, {0x00, 0x00, 0x00, 0x00}, 0x04},
-       {0x80ec17, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                               0x00}, 0x09},
-       {0x80ec22, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                               0x00, 0x00}, 0x0a},
-       {0x80ec20, {0x00}, 0x01},
-       {0x80ec3f, {0x01}, 0x01},
-       {0x000000, {0x00}, 0x00}, /* Terminating Entry */
-};
-
 static struct it913xset set_it9135_template[] = {
        {0x80ee06, {0x00}, 0x01},
        {0x80ec56, {0x00}, 0x01},

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 1a5b600..533c96e 100644 (file)
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -1324,6 +1324,13 @@ static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
                        .chip_ver = 1,
                };
 
+               if (state->dual_mode) {
+                       if (adap->id == 0)
+                               it913x_config.role = IT913X_ROLE_DUAL_MASTER;
+                       else
+                               it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
+               }
+
                ret = af9035_add_i2c_dev(d, "it913x",
                                state->af9033_config[adap->id].i2c_addr,
                                &it913x_config);
@@ -1342,6 +1349,13 @@ static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
                        .chip_ver = 2,
                };
 
+               if (state->dual_mode) {
+                       if (adap->id == 0)
+                               it913x_config.role = IT913X_ROLE_DUAL_MASTER;
+                       else
+                               it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
+               }
+
                ret = af9035_add_i2c_dev(d, "it913x",
                                state->af9033_config[adap->id].i2c_addr,
                                &it913x_config);