V4L/DVB (7351): tuner-simple: add init and sleep methods

taken from dvb-pll

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

3 files changed, 76 insertions, 0 deletions

diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c
index 3ec76391a60d..3a27d4a8ce38 100644
--- a/drivers/media/video/tuner-simple.c
+++ b/drivers/media/video/tuner-simple.c
@@ -810,6 +810,52 @@ fail:
         return ret;
 }
 
+static int simple_init(struct dvb_frontend *fe)
+{
+        struct tuner_simple_priv *priv = fe->tuner_priv;
+
+        if (priv->i2c_props.adap == NULL)
+                return -EINVAL;
+
+        if (priv->tun->initdata) {
+                int ret;
+
+                if (fe->ops.i2c_gate_ctrl)
+                        fe->ops.i2c_gate_ctrl(fe, 1);
+
+                ret = tuner_i2c_xfer_send(&priv->i2c_props,
+                                          priv->tun->initdata + 1,
+                                          priv->tun->initdata[0]);
+                if (ret != priv->tun->initdata[0])
+                        return ret;
+        }
+
+        return 0;
+}
+
+static int simple_sleep(struct dvb_frontend *fe)
+{
+        struct tuner_simple_priv *priv = fe->tuner_priv;
+
+        if (priv->i2c_props.adap == NULL)
+                return -EINVAL;
+
+        if (priv->tun->sleepdata) {
+                int ret;
+
+                if (fe->ops.i2c_gate_ctrl)
+                        fe->ops.i2c_gate_ctrl(fe, 1);
+
+                ret = tuner_i2c_xfer_send(&priv->i2c_props,
+                                          priv->tun->sleepdata + 1,
+                                          priv->tun->sleepdata[0]);
+                if (ret != priv->tun->sleepdata[0])
+                        return ret;
+        }
+
+        return 0;
+}
+
 static int simple_release(struct dvb_frontend *fe)
 {
         struct tuner_simple_priv *priv = fe->tuner_priv;
@@ -841,6 +887,8 @@ static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 }
 
 static struct dvb_tuner_ops simple_tuner_ops = {
+        .init              = simple_init,
+        .sleep             = simple_sleep,
         .set_analog_params = simple_set_params,
         .set_params        = simple_dvb_set_params,
         .calc_regs         = simple_dvb_calc_regs,
diff --git a/drivers/media/video/tuner-types.c b/drivers/media/video/tuner-types.c
index 8b53d0d05b23..13c76a57d8e2 100644
--- a/drivers/media/video/tuner-types.c
+++ b/drivers/media/video/tuner-types.c
@@ -35,6 +35,27 @@
  *      based on the video standard in use.
  */
 
+/* The following was taken from dvb-pll.c: */
+
+/* Set AGC TOP value to 103 dBuV:
+ *      0x80 = Control Byte
+ *      0x40 = 250 uA charge pump (irrelevant)
+ *      0x18 = Aux Byte to follow
+ *      0x06 = 64.5 kHz divider (irrelevant)
+ *      0x01 = Disable Vt (aka sleep)
+ *
+ *      0x00 = AGC Time constant 2s Iagc = 300 nA (vs 0x80 = 9 nA)
+ *      0x50 = AGC Take over point = 103 dBuV
+ */
+static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 };
+
+/*      0x04 = 166.67 kHz divider
+ *
+ *      0x80 = AGC Time constant 50ms Iagc = 9 uA
+ *      0x20 = AGC Take over point = 112 dBuV
+ */
+static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 };
+
 /* 0-9 */
 /* ------------ TUNER_TEMIC_PAL - TEMIC PAL ------------ */
 
@@ -1425,6 +1446,7 @@ struct tunertype tuners[] = {
                 .min    = 16 *  57.00,
                 .max    = 16 * 863.00,
                 .stepsize = 62500,
+                .initdata = tua603x_agc103,
         },
         [TUNER_TENA_9533_DI] = { /* Philips PAL */
                 .name   = "Tena TNF9533-D/IF/TNF9533-B/DF",
@@ -1439,6 +1461,8 @@ struct tunertype tuners[] = {
                 .name   = "Philips FMD1216ME MK3 Hybrid Tuner",
                 .params = tuner_philips_fmd1216me_mk3_params,
                 .count  = ARRAY_SIZE(tuner_philips_fmd1216me_mk3_params),
+                .initdata = tua603x_agc112,
+                .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 },
         },
         [TUNER_LG_TDVS_H06XF] = { /* LGINNOTEK ATSC */
                 .name   = "LG TDVS-H06xF", /* H061F, H062F & H064F */
@@ -1447,6 +1471,7 @@ struct tunertype tuners[] = {
                 .min    = 16 *  54.00,
                 .max    = 16 * 863.00,
                 .stepsize = 62500,
+                .initdata = tua603x_agc103,
         },
         [TUNER_YMEC_TVF66T5_B_DFF] = { /* Philips PAL */
                 .name   = "Ymec TVF66T5-B/DFF",
diff --git a/include/media/tuner-types.h b/include/media/tuner-types.h
index 4b5e5cf780c8..fda12093cab3 100644
--- a/include/media/tuner-types.h
+++ b/include/media/tuner-types.h
@@ -120,6 +120,9 @@ struct tunertype {
         u16 min;
         u16 max;
         u16 stepsize;
+
+        u8 *initdata;
+        u8 *sleepdata;
 };
 
 extern struct tunertype tuners[];