[media] dib0700: properly setup GPIOs for PCTV 340e

Provide a frontend setup routine for the PCTV 340e which takes into account
the specific GPIO setup of the board.

Note that this patch does *not* take into account the xc4000 reset pin, which
is attached to the dib7000.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 63 insertions, 1 deletions

diff --git a/drivers/media/dvb/dvb-usb/dib0700_devices.c b/drivers/media/dvb/dvb-usb/dib0700_devices.c
index 66c6de98c97b..5e3290739f12 100644
--- a/drivers/media/dvb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/dvb/dvb-usb/dib0700_devices.c
@@ -2675,6 +2675,68 @@ static int dib0700_xc4000_tuner_callback(void *priv, int component,
         return 0;
 }
 
+/* FIXME: none of these inputs are validated yet */
+static struct dib7000p_config pctv_340e_config = {
+        .output_mpeg2_in_188_bytes = 1,
+
+        .agc_config_count = 1,
+        .agc = &stk7700p_7000p_mt2060_agc_config,
+        .bw  = &stk7700p_pll_config,
+
+        /* FIXME: need to take xc4000 out of reset */
+        .gpio_dir = DIB7000M_GPIO_DEFAULT_DIRECTIONS,
+        .gpio_val = DIB7000M_GPIO_DEFAULT_VALUES,
+        .gpio_pwm_pos = DIB7000M_GPIO_DEFAULT_PWM_POS,
+};
+
+/* PCTV 340e GPIOs map:
+   dib0700:
+   GPIO2  - CX25843 sleep
+   GPIO3  - CS5340 reset
+   GPIO5  - IRD
+   GPIO6  - Power Supply
+   GPIO8  - LNA (1=off 0=on)
+   GPIO10 - CX25843 reset
+   dib7000:
+   GPIO8  - xc4000 reset
+ */
+static int pctv340e_frontend_attach(struct dvb_usb_adapter *adap)
+{
+        struct dib0700_state *st = adap->dev->priv;
+
+        /* Power Supply on */
+        dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 0);
+        msleep(50);
+        dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 1);
+        msleep(100); /* Allow power supply to settle before probing */
+
+        /* cx25843 reset */
+        dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 0);
+        msleep(1); /* cx25843 datasheet say 350us required */
+        dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 1);
+
+        /* LNA off for now */
+        dib0700_set_gpio(adap->dev, GPIO8,  GPIO_OUT, 1);
+
+        /* Put the CX25843 to sleep for now since we're in digital mode */
+        dib0700_set_gpio(adap->dev, GPIO2, GPIO_OUT, 1);
+
+        /* FIXME: not verified yet */
+        dib0700_ctrl_clock(adap->dev, 72, 1);
+
+        if (dib7000pc_detection(&adap->dev->i2c_adap) == 0) {
+                /* Demodulator not found for some reason? */
+                return -ENODEV;
+        }
+
+        adap->fe = dvb_attach(dib7000p_attach, &adap->dev->i2c_adap, 0x12,
+                              &pctv_340e_config);
+        st->is_dib7000pc = 1;
+
+        return adap->fe == NULL ? -ENODEV : 0;
+}
+
+
 static struct xc4000_config s5h1411_xc4000_tunerconfig = {
         .i2c_address      = 0x64,
         .if_khz           = 5380,
@@ -3814,7 +3876,7 @@ struct dvb_usb_device_properties dib0700_devices[] = {
                 .num_adapters = 1,
                 .adapter = {
                         {
-                                .frontend_attach  = stk7700ph_frontend_attach,
+                                .frontend_attach  = pctv340e_frontend_attach,
                                 .tuner_attach     = xc4000_tuner_attach,
 
                                 DIB0700_DEFAULT_STREAMING_CONFIG(0x02),